FreeCalypso > hg > fc-selenite
annotate src/g23m-fad/ppp/ppp_ncpf.c @ 50:a9a7d531e673
components: initial support for gcc
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 19 Jul 2018 19:23:19 +0000 |
parents | d393cd9bb723 |
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rev | line source |
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1
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1 /* |
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2 +----------------------------------------------------------------------------- |
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3 | Project : |
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4 | Modul : |
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5 +----------------------------------------------------------------------------- |
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6 | Copyright 2002 Texas Instruments Berlin, AG |
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7 | All rights reserved. |
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8 | |
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9 | This file is confidential and a trade secret of Texas |
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10 | Instruments Berlin, AG |
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11 | The receipt of or possession of this file does not convey |
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12 | any rights to reproduce or disclose its contents or to |
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13 | manufacture, use, or sell anything it may describe, in |
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14 | whole, or in part, without the specific written consent of |
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15 | Texas Instruments Berlin, AG. |
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16 +----------------------------------------------------------------------------- |
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17 | Purpose : This modul is part of the entity PPP and implements all |
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18 | procedures and functions as described in the |
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19 | SDL-documentation (NCP-statemachine) |
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20 +----------------------------------------------------------------------------- |
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21 */ |
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22 |
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23 #define ENTITY_PPP |
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24 |
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25 /*==== INCLUDES =============================================================*/ |
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26 |
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27 #include "typedefs.h" /* to get Condat data types */ |
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28 #include "vsi.h" /* to get a lot of macros */ |
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29 #include "macdef.h" /* to get a lot of macros */ |
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30 #include "custom.h" /* to get a lot of macros */ |
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31 #include "gsm.h" /* to get a lot of macros */ |
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32 #include "prim.h" /* to get the definitions of used SAP and directions */ |
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33 #include "dti.h" /* to get the DTILIB definitions */ |
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34 #include "ppp.h" /* to get the global entity definitions */ |
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35 |
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36 #include <string.h> /* to get memcpy */ |
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37 #include "ppp_arbf.h" /* to get function interface from arb */ |
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38 |
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39 /*==== CONST ================================================================*/ |
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40 |
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41 #define TYPE_HC 2 |
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42 #define TYPE_IP 3 |
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43 #define TYPE_PDNS 129 |
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44 #define TYPE_SDNS 131 |
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45 #define TYPE_ADJUST 125 |
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46 |
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47 #define MASK_TYPE_HC TYPE_HC |
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48 #define MASK_TYPE_IP TYPE_IP |
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49 #define MASK_TYPE_PDNS (TYPE_PDNS - TYPE_ADJUST) |
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50 #define MASK_TYPE_SDNS (TYPE_SDNS - TYPE_ADJUST) |
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51 |
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52 #define LENGTH_HC_VJ 6 |
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53 #define LENGTH_HC_MAX LENGTH_HC_VJ |
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54 #define LENGTH_IP 6 |
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55 #define LENGTH_PDNS 6 |
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56 #define LENGTH_SDNS 6 |
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57 |
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58 #define NCP_CONF_REQ_LENGTH_MAX (4 + \ |
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59 LENGTH_HC_MAX + \ |
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60 LENGTH_IP + \ |
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61 LENGTH_PDNS + \ |
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62 LENGTH_SDNS) |
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63 #define NCP_TERM_REQ_LENGTH 6 |
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64 |
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65 #define PPP_CSID_YES 1 |
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66 |
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67 /*==== LOCAL VARS ===========================================================*/ |
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68 |
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69 /*==== PRIVATE FUNCTIONS ====================================================*/ |
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70 |
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71 /*==== PUBLIC FUNCTIONS =====================================================*/ |
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72 |
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73 |
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74 |
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75 /* |
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76 +------------------------------------------------------------------------------ |
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77 | Function : ncp_init |
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78 +------------------------------------------------------------------------------ |
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79 | Description : The function ncp_init() initialize Network Control Protocol |
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80 | |
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81 | Parameters : no parameters |
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82 | |
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83 +------------------------------------------------------------------------------ |
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84 */ |
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85 GLOBAL void ncp_init () |
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86 { |
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87 TRACE_FUNCTION( "ncp_init" ); |
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88 /* |
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89 * initialize values |
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90 */ |
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91 ppp_data->ncp.req_hc = PPP_HC_DEFAULT; |
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92 ppp_data->ncp.req_msid = PPP_MSID_DEFAULT; |
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93 ppp_data->ncp.req_ip = PPP_IP_DEFAULT; |
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94 ppp_data->ncp.req_pdns = PPP_PDNS_DEFAULT; |
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95 ppp_data->ncp.req_sdns = PPP_SDNS_DEFAULT; |
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96 ppp_data->ncp.req_gateway = PPP_GATEWAY_DEFAULT; |
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97 |
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98 ppp_data->ncp.s_hc = PPP_HC_DEFAULT; |
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99 ppp_data->ncp.s_msid = PPP_MSID_DEFAULT; |
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100 ppp_data->ncp.r_hc = PPP_HC_DEFAULT; |
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101 ppp_data->ncp.r_msid = PPP_MSID_DEFAULT; |
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102 ppp_data->ncp.n_ip = PPP_IP_DEFAULT; |
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103 ppp_data->ncp.n_pdns = PPP_PDNS_DEFAULT; |
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104 ppp_data->ncp.n_sdns = PPP_SDNS_DEFAULT; |
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105 ppp_data->ncp.n_gateway = PPP_GATEWAY_DEFAULT; |
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106 |
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107 ppp_data->ncp.s_rejected = 0; |
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108 |
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109 ppp_data->ncp.nscri = 0; |
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110 ppp_data->ncp.nstri = 0; |
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111 ppp_data->ncp.nscji = 0; |
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112 |
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113 ppp_data->ncp.scr=FALSE; |
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114 ppp_data->ncp.str=FALSE; |
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115 ppp_data->ncp.rcr=FALSE; |
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116 |
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117 INIT_STATE( PPP_SERVICE_NCP , NCP_STATE ); |
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118 } /* ncp_init() */ |
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119 |
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120 |
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121 |
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122 /* |
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123 +------------------------------------------------------------------------------ |
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124 | Function : ncp_get_values |
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125 +------------------------------------------------------------------------------ |
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126 | Description : The function ncp_get_values() returns negotiated values |
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127 | |
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128 | Parameters : ptr_hc - returns IP Header Compression |
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129 | ptr_msid - returns max slot identifier |
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130 | ptr_ip - returns IP address |
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131 | ptr_pdns - returns primary DNS server address |
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132 | ptr_pdns - returns secondary DNS server address |
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133 | |
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134 +------------------------------------------------------------------------------ |
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135 */ |
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136 GLOBAL void ncp_get_values (UBYTE* ptr_hc, UBYTE* ptr_msid, ULONG* ptr_ip, |
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137 ULONG* ptr_pdns, ULONG* ptr_sdns) |
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138 { |
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139 TRACE_FUNCTION( "ncp_get_values" ); |
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140 |
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141 *ptr_hc = ppp_data->ncp.r_hc; |
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142 if(ppp_data->ncp.r_msid < ppp_data->ncp.s_msid) |
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143 *ptr_msid = ppp_data->ncp.r_msid; |
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144 else |
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145 *ptr_msid = ppp_data->ncp.s_msid; |
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146 *ptr_ip = ppp_data->ncp.n_ip; |
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147 *ptr_pdns = ppp_data->ncp.n_pdns; |
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148 *ptr_sdns = ppp_data->ncp.n_sdns; |
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149 |
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150 } /* ncp_get_values() */ |
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151 |
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152 |
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153 |
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154 /* |
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155 +------------------------------------------------------------------------------ |
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156 | Function : ncp_get_scr |
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157 +------------------------------------------------------------------------------ |
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158 | Description : The function ncp_get_scr() creates a NCP Configure Request |
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159 | packet. |
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160 | |
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161 | Parameters : ptr_packet - returns the Configure Request packet |
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162 | THE MEMORY FOR THE PACKET WILL ALLOCATED BY |
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163 | THIS FUNCTION |
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164 | |
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165 +------------------------------------------------------------------------------ |
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166 */ |
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167 GLOBAL void ncp_get_scr (T_desc2** ptr_packet) |
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168 { |
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169 T_desc2* ret_desc; |
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170 USHORT len_pos; |
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171 USHORT pos; |
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172 |
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173 TRACE_FUNCTION( "ncp_get_scr" ); |
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174 |
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175 /* |
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176 * Allocate the necessary size for the data descriptor. The size is |
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177 * calculated as follows: |
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178 * - take the size of a descriptor structure |
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179 * - subtract one because of the array buffer[1] to get the size of |
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180 * descriptor control information |
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181 * - add number of octets of descriptor data |
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182 */ |
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183 MALLOC (ret_desc, (USHORT)(sizeof(T_desc2) - 1 + NCP_CONF_REQ_LENGTH_MAX)); |
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184 /* |
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185 * fill the packet |
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186 */ |
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187 ret_desc->next=(ULONG)NULL; |
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188 pos=0; |
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189 /* |
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190 * Code field |
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191 */ |
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192 ret_desc->buffer[pos]=CODE_CONF_REQ; |
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193 pos++; |
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194 /* |
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195 * Identifier field |
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196 */ |
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197 ret_desc->buffer[pos]=ppp_data->ncp.nscri;/*lint !e415 access of out-of-bounds pointer */ |
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198 pos++; |
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199 /* |
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200 * Length field (store the position) |
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201 */ |
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202 len_pos=pos; |
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203 pos++; |
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204 pos++; |
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205 /* |
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206 * Header Compression Protocol (only server mode) |
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207 */ |
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208 if(((ppp_data->ncp.s_rejected & (1UL << MASK_TYPE_HC)) EQ 0) && |
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209 (ppp_data->ncp.s_hc NEQ PPP_HC_DEFAULT)) |
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210 { |
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211 if(ppp_data->ncp.s_hc EQ PPP_HC_VJ) |
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212 { |
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213 ret_desc->buffer[pos] = TYPE_HC;/*lint !e415 !e416 access of out-of-bounds pointer */ |
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214 pos++; |
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215 ret_desc->buffer[pos] = LENGTH_HC_VJ;/*lint !e415 !e416 access of out-of-bounds pointer */ |
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216 pos++; |
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217 ret_desc->buffer[pos] = PROTOCOL_VJ_MSB;/*lint !e415 !e416 access of out-of-bounds pointer */ |
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218 pos++; |
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219 ret_desc->buffer[pos] = PROTOCOL_VJ_LSB;/*lint !e415 !e416 access of out-of-bounds pointer */ |
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220 pos++; |
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221 ret_desc->buffer[pos] = ppp_data->ncp.s_msid;/*lint !e415 !e416 access of out-of-bounds pointer */ |
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222 pos++; |
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223 ret_desc->buffer[pos] = PPP_CSID_YES;/*lint !e415 !e416 access of out-of-bounds pointer */ |
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224 pos++; |
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225 } |
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226 /* |
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227 * include additional header compression protocols |
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228 */ |
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229 } |
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230 /* |
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231 * IP Address (only client mode) |
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232 */ |
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233 if(((ppp_data->ncp.s_rejected & (1UL << MASK_TYPE_IP)) EQ 0) && |
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234 (ppp_data->mode EQ PPP_CLIENT)) |
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235 { |
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|
236 ret_desc->buffer[pos]=TYPE_IP;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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237 pos++; |
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238 ret_desc->buffer[pos]=LENGTH_IP;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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239 pos++; |
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|
240 ret_desc->buffer[pos]=(UBYTE)(ppp_data->ncp.n_ip >> 24);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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241 pos++; |
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242 ret_desc->buffer[pos]=(UBYTE)((ppp_data->ncp.n_ip >> 16) & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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243 pos++; |
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244 ret_desc->buffer[pos]=(UBYTE)((ppp_data->ncp.n_ip >> 8) & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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245 pos++; |
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246 ret_desc->buffer[pos]=(UBYTE)(ppp_data->ncp.n_ip & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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247 pos++; |
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248 } |
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249 /* |
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250 * Gateway Address (only server mode) |
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251 */ |
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252 if(((ppp_data->ncp.s_rejected & (1UL << MASK_TYPE_IP)) EQ 0) && |
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253 (ppp_data->mode EQ PPP_SERVER) && |
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254 (ppp_data->ncp.n_gateway NEQ PPP_GATEWAY_DEFAULT)) |
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255 { |
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256 ret_desc->buffer[pos]=TYPE_IP;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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257 pos++; |
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258 ret_desc->buffer[pos]=LENGTH_IP;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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259 pos++; |
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260 ret_desc->buffer[pos]=(UBYTE)(ppp_data->ncp.n_gateway >> 24);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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261 pos++; |
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262 ret_desc->buffer[pos]=(UBYTE)((ppp_data->ncp.n_gateway >> 16) & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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263 pos++; |
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264 ret_desc->buffer[pos]=(UBYTE)((ppp_data->ncp.n_gateway >> 8) & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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265 pos++; |
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|
266 ret_desc->buffer[pos]=(UBYTE)(ppp_data->ncp.n_gateway & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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267 pos++; |
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268 } |
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269 /* |
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270 * Primary DNS address (only client mode) |
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271 */ |
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272 if(((ppp_data->ncp.s_rejected & (1UL << MASK_TYPE_PDNS)) EQ 0) && |
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273 (ppp_data->mode EQ PPP_CLIENT)) |
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274 { |
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275 ret_desc->buffer[pos]=TYPE_PDNS;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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276 pos++; |
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277 ret_desc->buffer[pos]=LENGTH_PDNS;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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278 pos++; |
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279 ret_desc->buffer[pos]=(UBYTE)(ppp_data->ncp.n_pdns >> 24);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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280 pos++; |
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281 ret_desc->buffer[pos]=(UBYTE)((ppp_data->ncp.n_pdns >> 16) & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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282 pos++; |
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|
283 ret_desc->buffer[pos]=(UBYTE)((ppp_data->ncp.n_pdns >> 8) & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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|
284 pos++; |
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|
285 ret_desc->buffer[pos]=(UBYTE)(ppp_data->ncp.n_pdns & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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286 pos++; |
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|
287 } |
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288 /* |
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289 * Secondary DNS address (only client mode) |
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|
290 */ |
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|
291 if(((ppp_data->ncp.s_rejected & (1UL << MASK_TYPE_SDNS)) EQ 0) && |
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292 (ppp_data->mode EQ PPP_CLIENT)) |
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|
293 { |
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|
294 ret_desc->buffer[pos]=TYPE_SDNS;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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295 pos++; |
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|
296 ret_desc->buffer[pos]=LENGTH_SDNS;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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|
297 pos++; |
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|
298 ret_desc->buffer[pos]=(UBYTE)(ppp_data->ncp.n_sdns >> 24);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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|
299 pos++; |
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|
300 ret_desc->buffer[pos]=(UBYTE)((ppp_data->ncp.n_sdns >> 16) & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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|
301 pos++; |
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|
302 ret_desc->buffer[pos]=(UBYTE)((ppp_data->ncp.n_sdns >> 8) & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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|
303 pos++; |
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|
304 ret_desc->buffer[pos]=(UBYTE)(ppp_data->ncp.n_sdns & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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|
305 pos++; |
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|
306 } |
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|
307 /* |
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|
308 * insert packet length |
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309 */ |
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|
310 ret_desc->len=pos; |
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|
311 ret_desc->buffer[len_pos]=(UBYTE)(pos >> 8);/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
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|
312 len_pos++; |
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313 ret_desc->buffer[len_pos]=(UBYTE)(pos & 0x00ff);/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
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314 |
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|
315 /* |
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|
316 * return the created packet |
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|
317 */ |
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|
318 ppp_data->ncp.scr=TRUE; |
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319 *ptr_packet=ret_desc; |
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|
320 |
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321 } /* ncp_get_scr() */ |
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|
322 |
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|
323 |
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|
324 |
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|
325 /* |
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|
326 +------------------------------------------------------------------------------ |
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327 | Function : ncp_get_str |
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|
328 +------------------------------------------------------------------------------ |
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329 | Description : The function ncp_get_str() creates a NCP Terminate Request |
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330 | packet. |
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|
331 | |
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332 | Parameters : ptr_packet - returns the Terminate Request packet |
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|
333 | THE MEMORY FOR THE PACKET WILL ALLOCATED BY |
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|
334 | THIS FUNCTION |
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|
335 | |
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|
336 +------------------------------------------------------------------------------ |
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|
337 */ |
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|
338 GLOBAL void ncp_get_str (T_desc2** ptr_packet) |
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|
339 { |
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|
340 T_desc2* ret_desc; |
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341 USHORT pos; |
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342 |
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343 TRACE_FUNCTION( "ncp_get_str" ); |
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344 |
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345 /* |
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346 * Allocate the necessary size for the data descriptor. The size is |
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347 * calculated as follows: |
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348 * - take the size of a descriptor structure |
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349 * - subtract one because of the array buffer[1] to get the size of |
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350 * descriptor control information |
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351 * - add number of octets of descriptor data |
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352 */ |
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353 MALLOC (ret_desc, (USHORT)(sizeof(T_desc2) - 1 + NCP_TERM_REQ_LENGTH)); |
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354 /* |
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355 * fill the packet |
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356 */ |
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357 ret_desc->next = (ULONG)NULL; |
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358 ret_desc->len = NCP_TERM_REQ_LENGTH; |
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359 pos = 0; |
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360 /* |
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|
361 * Code field |
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|
362 */ |
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|
363 ret_desc->buffer[pos] = CODE_TERM_REQ; |
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364 pos++; |
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|
365 /* |
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366 * Identifier field |
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367 */ |
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|
368 ret_desc->buffer[pos] = ppp_data->ncp.nstri;/*lint !e415 access of out-of-bounds pointer */ |
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369 pos++; |
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|
370 /* |
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|
371 * Length field |
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372 */ |
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373 ret_desc->buffer[pos] = 0;/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
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|
374 pos++; |
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|
375 ret_desc->buffer[pos] = NCP_TERM_REQ_LENGTH;/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
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|
376 pos++; |
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|
377 /* |
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378 * Data field contains the error code |
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379 */ |
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|
380 ret_desc->buffer[pos] = (U8)((ppp_data->ppp_cause >> 8) & 0x00ff);/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
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381 pos++; |
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|
382 ret_desc->buffer[pos] = (U8)((ppp_data->ppp_cause) & 0x00ff);/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
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|
383 pos++; |
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changeset
|
384 |
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|
385 /* |
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|
386 * return the created packet |
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|
387 */ |
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|
388 ppp_data->ncp.str = TRUE; |
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389 *ptr_packet = ret_desc; |
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390 } /* ncp_get_str() */ |
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|
391 |
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|
392 |
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|
393 |
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|
394 /* |
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|
395 +------------------------------------------------------------------------------ |
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396 | Function : ncp_analyze_first_ipcp |
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|
397 +------------------------------------------------------------------------------ |
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398 | Description : The function ncp_analyze_first_ipcp() determine whether the |
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|
399 | given packet is a Configure Request packet. If so the function |
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400 | analyzes the packet, sets some values in the data structure and |
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|
401 | returns the values for header comression. |
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|
402 | |
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|
403 | Parameters : packet - received packet |
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|
404 | ptr_result - returns the result of the analysis |
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diff
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|
405 | ptr_hc - returns requested header compression |
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changeset
|
406 | ptr_msid - returns requested max slot identifier |
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diff
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|
407 | |
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|
408 +------------------------------------------------------------------------------ |
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parents:
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changeset
|
409 */ |
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parents:
diff
changeset
|
410 GLOBAL void ncp_analyze_first_ipcp(T_desc2* packet, |
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diff
changeset
|
411 UBYTE* ptr_result, |
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|
412 UBYTE* ptr_hc, |
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|
413 UBYTE* ptr_msid) |
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|
414 { |
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|
415 USHORT packet_len; |
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|
416 UBYTE type_len; |
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|
417 USHORT pos; |
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diff
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|
418 USHORT analyzed; |
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changeset
|
419 USHORT protocol_hc; |
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|
420 ULONG ip; |
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|
421 ULONG pdns; |
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|
422 ULONG sdns; |
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|
423 |
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|
424 TRACE_FUNCTION( "ncp_analyze_first_ipcp" ); |
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|
425 |
d393cd9bb723
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changeset
|
426 /* |
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diff
changeset
|
427 * check whether it is a Configure Request packet and |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
428 * for correct length field |
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diff
changeset
|
429 */ |
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diff
changeset
|
430 packet_len = packet->buffer[2];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
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diff
changeset
|
431 packet_len <<= 8; |
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diff
changeset
|
432 packet_len+= packet->buffer[3];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
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diff
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|
433 if((packet->buffer[0] NEQ CODE_CONF_REQ) || |
d393cd9bb723
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diff
changeset
|
434 (packet_len > packet->len) || |
d393cd9bb723
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diff
changeset
|
435 (packet_len < 4)) |
d393cd9bb723
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parents:
diff
changeset
|
436 { |
d393cd9bb723
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|
437 *ptr_result = FALSE; |
d393cd9bb723
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diff
changeset
|
438 return; |
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parents:
diff
changeset
|
439 } |
d393cd9bb723
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diff
changeset
|
440 /* |
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diff
changeset
|
441 * check consistence of length of packet and length of configuration options |
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diff
changeset
|
442 */ |
d393cd9bb723
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diff
changeset
|
443 pos=5; |
d393cd9bb723
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diff
changeset
|
444 while(pos < packet_len) |
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parents:
diff
changeset
|
445 { |
d393cd9bb723
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diff
changeset
|
446 if(packet->buffer[pos] < 2)/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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parents:
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changeset
|
447 { |
d393cd9bb723
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diff
changeset
|
448 *ptr_result = FALSE; |
d393cd9bb723
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parents:
diff
changeset
|
449 return; |
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parents:
diff
changeset
|
450 } |
d393cd9bb723
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diff
changeset
|
451 pos+= packet->buffer[pos];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
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parents:
diff
changeset
|
452 } |
d393cd9bb723
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diff
changeset
|
453 if((pos - 1) NEQ packet_len) |
d393cd9bb723
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parents:
diff
changeset
|
454 { |
d393cd9bb723
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parents:
diff
changeset
|
455 *ptr_result = FALSE; |
d393cd9bb723
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
456 return; |
d393cd9bb723
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
457 } |
d393cd9bb723
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
458 /* |
d393cd9bb723
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
459 * analyze configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
460 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
461 ppp_data->ncp.r_hc = PPP_HC_DEFAULT; |
d393cd9bb723
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
462 ppp_data->ncp.r_msid = PPP_MSID_DEFAULT; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
463 ppp_data->ncp.n_ip = PPP_IP_DEFAULT; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
464 ppp_data->ncp.n_pdns = PPP_PDNS_DEFAULT; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
465 ppp_data->ncp.n_sdns = PPP_SDNS_DEFAULT; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
466 pos=4; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
467 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
468 * analyzed is a bit field and marks all already analyzed |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
469 * configuration options in order to reject all configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
470 * which are listed more than once |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
471 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
472 analyzed=0; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
473 while(pos < packet_len) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
474 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
475 type_len=packet->buffer[pos + 1];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
476 switch(packet->buffer[pos])/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
477 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
478 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
479 * yet supported configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
480 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
481 case TYPE_HC: /* Header Compression */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
482 protocol_hc = packet->buffer[pos + 2];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
483 protocol_hc <<= 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
484 protocol_hc+= packet->buffer[pos + 3];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
485 if((analyzed & (1UL << MASK_TYPE_HC)) EQ 0) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
486 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
487 analyzed|= (1UL << MASK_TYPE_HC); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
488 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
489 * max slot identifier should be between 3 and 254 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
490 * comp slot identifier may be compressed |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
491 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
492 if((protocol_hc EQ DTI_PID_CTCP) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
493 (packet->buffer[pos + 4] >= 3) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
494 (packet->buffer[pos + 5] EQ PPP_CSID_YES))/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
495 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
496 ppp_data->ncp.r_hc = PPP_HC_VJ; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
497 ppp_data->ncp.r_msid = packet->buffer[pos + 4];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
498 if(ppp_data->ncp.r_msid > 254) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
499 ppp_data->ncp.r_msid = 254; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
500 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
501 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
502 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
503 case TYPE_IP: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
504 ip = packet->buffer[pos + 2];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
505 ip = (ip << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
506 ip+= packet->buffer[pos + 3];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
507 ip = (ip << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
508 ip+= packet->buffer[pos + 4];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
509 ip = (ip << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
510 ip+= packet->buffer[pos + 5];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
511 if((analyzed & (1UL << MASK_TYPE_IP)) EQ 0) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
512 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
513 analyzed|=(1UL << MASK_TYPE_IP); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
514 ppp_data->ncp.n_ip = ip; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
515 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
516 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
517 case TYPE_PDNS: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
518 pdns = packet->buffer[pos + 2];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
519 pdns = (pdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
520 pdns+= packet->buffer[pos + 3];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
521 pdns = (pdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
522 pdns+= packet->buffer[pos + 4];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
523 pdns = (pdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
524 pdns+= packet->buffer[pos + 5];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
525 if((analyzed & (1UL << MASK_TYPE_PDNS)) EQ 0) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
526 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
527 analyzed|=(1UL << MASK_TYPE_PDNS); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
528 ppp_data->ncp.n_pdns = pdns; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
529 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
530 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
531 case TYPE_SDNS: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
532 sdns = packet->buffer[pos + 2];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
533 sdns = (sdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
534 sdns+= packet->buffer[pos + 3];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
535 sdns = (sdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
536 sdns+= packet->buffer[pos + 4];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
537 sdns = (sdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
538 sdns+= packet->buffer[pos + 5];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
539 if((analyzed & (1UL << MASK_TYPE_SDNS)) EQ 0) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
540 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
541 analyzed|=(1UL << MASK_TYPE_SDNS); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
542 ppp_data->ncp.n_sdns = sdns; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
543 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
544 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
545 default: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
546 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
547 * not supported configuration options are not analysed |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
548 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
549 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
550 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
551 pos+= type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
552 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
553 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
554 * all configuration options analyzed |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
555 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
556 *ptr_hc = ppp_data->ncp.r_hc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
557 *ptr_msid = ppp_data->ncp.r_msid; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
558 *ptr_result = TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
559 } /* ncp_analyze_first_ipcp() */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
560 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
561 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
562 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
563 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
564 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
565 | Function : ncp_fill_out_packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
566 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
567 | Description : The function ncp_fill_out_packet() puts a IPCP packet into |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
568 | the protocol configuration list |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
569 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
570 | Parameters : pco_buf - pco list buffer |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
571 | ptr_pos - position where to write the IPCP packet, this value |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
572 | must get back to the calling funtion |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
573 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
574 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
575 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
576 GLOBAL void ncp_fill_out_packet (UBYTE pco_buf[], USHORT* ptr_pos) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
577 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
578 USHORT pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
579 USHORT len_pos1, len_pos2; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
580 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
581 TRACE_FUNCTION( "ncp_fill_out_packet" ); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
582 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
583 if((ppp_data->pco_mask & PPP_PCO_MASK_IPCP_HC) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
584 (ppp_data->pco_mask & PPP_PCO_MASK_IPCP_IP) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
585 (ppp_data->pco_mask & PPP_PCO_MASK_IPCP_PDNS) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
586 (ppp_data->pco_mask & PPP_PCO_MASK_IPCP_SDNS)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
587 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
588 pos=*ptr_pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
589 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
590 * create the Configure-Request packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
591 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
592 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
593 * Protocol ID |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
594 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
595 pco_buf[pos] = PROTOCOL_IPCP_MSB; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
596 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
597 pco_buf[pos] = PROTOCOL_IPCP_LSB; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
598 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
599 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
600 * Length of Protocol contents (store the position) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
601 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
602 len_pos1 = pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
603 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
604 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
605 * Code field |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
606 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
607 pco_buf[pos] = CODE_CONF_REQ; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
608 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
609 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
610 * Identifier field (some value) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
611 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
612 pco_buf[pos] = 1; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
613 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
614 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
615 * Length field (store the position) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
616 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
617 len_pos2 = pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
618 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
619 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
620 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
621 if(ppp_data->pco_mask & PPP_PCO_MASK_IPCP_HC) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
622 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
623 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
624 * Header Compression |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
625 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
626 if(ppp_data->ncp.r_hc EQ PPP_HC_VJ) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
627 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
628 pco_buf[pos] = TYPE_HC; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
629 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
630 pco_buf[pos] = LENGTH_HC_VJ; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
631 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
632 pco_buf[pos] = PROTOCOL_VJ_MSB; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
633 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
634 pco_buf[pos] = PROTOCOL_VJ_LSB; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
635 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
636 pco_buf[pos] = ppp_data->ncp.r_msid; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
637 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
638 pco_buf[pos] = PPP_CSID_YES; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
639 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
640 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
641 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
642 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
643 if(ppp_data->pco_mask & PPP_PCO_MASK_IPCP_IP) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
644 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
645 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
646 * IP Address |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
647 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
648 pco_buf[pos] = TYPE_IP; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
649 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
650 pco_buf[pos] = LENGTH_IP; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
651 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
652 pco_buf[pos] = (UBYTE)(ppp_data->ncp.n_ip >> 24); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
653 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
654 pco_buf[pos] = (UBYTE)((ppp_data->ncp.n_ip >> 16) & 0x000000ff); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
655 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
656 pco_buf[pos] = (UBYTE)((ppp_data->ncp.n_ip >> 8) & 0x000000ff); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
657 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
658 pco_buf[pos] = (UBYTE)(ppp_data->ncp.n_ip & 0x000000ff); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
659 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
660 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
661 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
662 if(ppp_data->pco_mask & PPP_PCO_MASK_IPCP_PDNS) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
663 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
664 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
665 * primary DNS Address |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
666 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
667 pco_buf[pos] = TYPE_PDNS; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
668 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
669 pco_buf[pos] = LENGTH_PDNS; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
670 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
671 pco_buf[pos] = (UBYTE)(ppp_data->ncp.n_pdns >> 24); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
672 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
673 pco_buf[pos] = (UBYTE)((ppp_data->ncp.n_pdns >> 16) & 0x000000ff); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
674 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
675 pco_buf[pos] = (UBYTE)((ppp_data->ncp.n_pdns >> 8) & 0x000000ff); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
676 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
677 pco_buf[pos] = (UBYTE)(ppp_data->ncp.n_pdns & 0x000000ff); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
678 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
679 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
680 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
681 if(ppp_data->pco_mask & PPP_PCO_MASK_IPCP_SDNS) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
682 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
683 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
684 * secondary DNS Address |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
685 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
686 pco_buf[pos] = TYPE_SDNS; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
687 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
688 pco_buf[pos] = LENGTH_SDNS; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
689 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
690 pco_buf[pos] = (UBYTE)(ppp_data->ncp.n_sdns >> 24); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
691 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
692 pco_buf[pos] = (UBYTE)((ppp_data->ncp.n_sdns >> 16) & 0x000000ff); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
693 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
694 pco_buf[pos] = (UBYTE)((ppp_data->ncp.n_sdns >> 8) & 0x000000ff); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
695 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
696 pco_buf[pos] = (UBYTE)(ppp_data->ncp.n_sdns & 0x000000ff); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
697 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
698 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
699 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
700 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
701 * insert packet length |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
702 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
703 pco_buf[len_pos2] = 0; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
704 len_pos2++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
705 pco_buf[len_pos2] = (UBYTE)(pos - len_pos2 + 3); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
706 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
707 * insert Length of Protocol Contents |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
708 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
709 pco_buf[len_pos1] = pco_buf[len_pos2]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
710 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
711 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
712 * return new position |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
713 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
714 *ptr_pos=pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
715 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
716 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
717 if(ppp_data->pco_mask & PPP_PCO_MASK_IPCP_GATEWAY) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
718 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
719 pos=*ptr_pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
720 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
721 * create the Configure-NAK packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
722 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
723 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
724 * Protocol ID |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
725 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
726 pco_buf[pos] = PROTOCOL_IPCP_MSB; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
727 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
728 pco_buf[pos] = PROTOCOL_IPCP_LSB; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
729 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
730 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
731 * Length of Protocol contents (store the position) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
732 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
733 len_pos1 = pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
734 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
735 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
736 * Code field |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
737 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
738 pco_buf[pos] = CODE_CONF_NAK; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
739 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
740 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
741 * Identifier field (some value) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
742 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
743 pco_buf[pos] = 1; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
744 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
745 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
746 * Length field (store the position) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
747 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
748 len_pos2 = pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
749 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
750 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
751 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
752 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
753 * dynamic Gateway Address |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
754 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
755 pco_buf[pos] = TYPE_IP; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
756 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
757 pco_buf[pos] = LENGTH_IP; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
758 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
759 pco_buf[pos] = 0; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
760 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
761 pco_buf[pos] = 0; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
762 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
763 pco_buf[pos] = 0; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
764 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
765 pco_buf[pos] = 0; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
766 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
767 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
768 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
769 * insert packet length |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
770 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
771 pco_buf[len_pos2] = 0; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
772 len_pos2++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
773 pco_buf[len_pos2] = (UBYTE)(pos - len_pos2 + 3); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
774 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
775 * insert Length of Protocol Contents |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
776 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
777 pco_buf[len_pos1] = pco_buf[len_pos2]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
778 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
779 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
780 * return new position |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
781 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
782 *ptr_pos=pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
783 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
784 } /* ncp_fill_out_packet() */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
785 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
786 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
787 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
788 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
789 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
790 | Function : ncp_analyze_pco |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
791 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
792 | Description : The function ncp_analyze_pco() analyzes the return packet from |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
793 | PDP activation and determines the primary and secondary DNS |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
794 | address and the Gateway address. |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
795 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
796 | Parameters : pco_buf - pointer to the protocol configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
797 | pos - position where the IPCP packet starts |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
798 | ptr_dns1 - returns primary DNS address |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
799 | ptr_dns2 - returns secondary DNS address |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
800 | ptr_gateway - returns Gateway address |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
801 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
802 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
803 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
804 GLOBAL void ncp_analyze_pco (UBYTE pco_buf[], |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
805 USHORT pos, |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
806 ULONG* ptr_dns1, |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
807 ULONG* ptr_dns2, |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
808 ULONG* ptr_gateway) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
809 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
810 USHORT packet_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
811 USHORT start_pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
812 UBYTE type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
813 USHORT analyzed; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
814 ULONG pdns; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
815 ULONG sdns; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
816 ULONG gateway; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
817 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
818 TRACE_FUNCTION( "ncp_analyze_pco" ); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
819 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
820 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
821 * check for correct length field |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
822 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
823 pos+= 2; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
824 packet_len = pco_buf[pos + 3]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
825 packet_len <<= 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
826 packet_len+= pco_buf[pos + 4]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
827 if(packet_len NEQ pco_buf[pos]) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
828 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
829 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
830 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
831 * check of code field |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
832 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
833 if((pco_buf[pos] NEQ CODE_CONF_REQ) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
834 (pco_buf[pos] NEQ CODE_CONF_NAK) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
835 (pco_buf[pos] NEQ CODE_CONF_ACK)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
836 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
837 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
838 * analyze configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
839 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
840 start_pos = pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
841 pos+= 4; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
842 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
843 * analyzed is a bit field and marks all already analyzed |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
844 * configuration options in order to determine configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
845 * which are listed more than once |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
846 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
847 analyzed=0; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
848 while((pos - start_pos) < packet_len) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
849 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
850 type_len=pco_buf[pos + 1]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
851 switch(pco_buf[pos]) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
852 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
853 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
854 * search for IP configuration option |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
855 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
856 case TYPE_IP: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
857 gateway = pco_buf[pos + 2]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
858 gateway = (gateway << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
859 gateway+= pco_buf[pos + 3]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
860 gateway = (gateway << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
861 gateway+= pco_buf[pos + 4]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
862 gateway = (gateway << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
863 gateway+= pco_buf[pos + 5]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
864 if(((analyzed & (1UL << MASK_TYPE_IP)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
865 (*ptr_gateway EQ PPP_GATEWAY_DEFAULT) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
866 (pco_buf[start_pos] EQ CODE_CONF_REQ)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
867 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
868 analyzed|=(1UL << MASK_TYPE_IP); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
869 *ptr_gateway = gateway; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
870 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
871 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
872 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
873 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
874 * search for DNS configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
875 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
876 case TYPE_PDNS: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
877 pdns = pco_buf[pos + 2]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
878 pdns = (pdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
879 pdns+= pco_buf[pos + 3]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
880 pdns = (pdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
881 pdns+= pco_buf[pos + 4]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
882 pdns = (pdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
883 pdns+= pco_buf[pos + 5]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
884 if(((analyzed & (1UL << MASK_TYPE_PDNS)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
885 (*ptr_dns1 EQ PPP_PDNS_DEFAULT) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
886 ((pco_buf[start_pos] EQ CODE_CONF_NAK) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
887 (pco_buf[start_pos] EQ CODE_CONF_ACK))) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
888 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
889 analyzed|=(1UL << MASK_TYPE_PDNS); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
890 *ptr_dns1 = pdns; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
891 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
892 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
893 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
894 case TYPE_SDNS: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
895 sdns = pco_buf[pos + 2]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
896 sdns = (sdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
897 sdns+= pco_buf[pos + 3]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
898 sdns = (sdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
899 sdns+= pco_buf[pos + 4]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
900 sdns = (sdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
901 sdns+= pco_buf[pos + 5]; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
902 if(((analyzed & (1UL << MASK_TYPE_SDNS)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
903 (*ptr_dns2 EQ PPP_SDNS_DEFAULT) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
904 ((pco_buf[start_pos] EQ CODE_CONF_NAK) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
905 (pco_buf[start_pos] EQ CODE_CONF_ACK))) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
906 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
907 analyzed|=(1UL << MASK_TYPE_SDNS); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
908 *ptr_dns2 = sdns; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
909 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
910 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
911 default: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
912 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
913 * other configuration options are not analysed |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
914 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
915 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
916 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
917 pos+= type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
918 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
919 } /* ncp_analyze_pco() */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
920 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
921 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
922 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
923 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
924 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
925 | Function : ncp_rcr |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
926 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
927 | Description : The function ncp_rcr() analyzes the given |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
928 | Configure Request packet and returns either FORWARD_RCRP or |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
929 | FORWARD_RCRN depend on the result of the analysis. |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
930 | The packet pointer points to an appropriate response packet. |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
931 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
932 | Parameters : ptr_packet - pointer to a Configure Request packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
933 | forward - returns result of analysis |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
934 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
935 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
936 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
937 GLOBAL void ncp_rcr (T_desc2** ptr_packet, UBYTE* isnew, UBYTE* forward) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
938 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
939 T_desc2* packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
940 USHORT packet_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
941 UBYTE type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
942 USHORT pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
943 USHORT copy_pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
944 USHORT analyzed; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
945 UBYTE code_ret; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
946 UBYTE error_found; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
947 USHORT protocol_hc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
948 UBYTE csid; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
949 ULONG ip; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
950 ULONG pdns; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
951 ULONG sdns; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
952 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
953 TRACE_FUNCTION( "ncp_rcr" ); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
954 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
955 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
956 * check for correct length field |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
957 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
958 packet = *ptr_packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
959 packet_len = packet->buffer[2];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
960 packet_len <<= 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
961 packet_len+= packet->buffer[3];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
962 if((packet_len > packet->len) || (packet_len < 4)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
963 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
964 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
965 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
966 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
967 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
968 * check consistence of length of packet and length of configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
969 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
970 pos=5; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
971 while(pos < packet_len) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
972 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
973 if(packet->buffer[pos] < 2)/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
974 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
975 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
976 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
977 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
978 pos += packet->buffer[pos];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
979 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
980 if((pos - 1) NEQ packet_len) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
981 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
982 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
983 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
984 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
985 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
986 * check whether it is a new identifier |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
987 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
988 *isnew=TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
989 if((ppp_data->ncp.rcr) && (ppp_data->ncp.lrcri EQ packet->buffer[1]))/*lint !e415 access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
990 *isnew=FALSE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
991 ppp_data->ncp.lrcri=packet->buffer[1];/*lint !e415 access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
992 ppp_data->ncp.rcr=TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
993 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
994 * analyze configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
995 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
996 ppp_data->ncp.r_hc = PPP_HC_DEFAULT; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
997 ppp_data->ncp.r_msid = PPP_MSID_DEFAULT; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
998 csid = 0; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
999 if(ppp_data->mode EQ PPP_SERVER) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1000 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1001 ppp_data->ncp.n_ip = PPP_IP_DEFAULT; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1002 ppp_data->ncp.n_pdns = PPP_PDNS_DEFAULT; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1003 ppp_data->ncp.n_sdns = PPP_SDNS_DEFAULT; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1004 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1005 pos=4; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1006 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1007 * position where NAKed or Rejected configuration options are copied to |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1008 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1009 copy_pos=4; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1010 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1011 * code_ret contains actually the status of analysis |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1012 * states are CODE_CONF_ACK, CODE_CONF_NAK and CODE_CONF_REJ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1013 * this state are also values for the Code-field in the return packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1014 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1015 code_ret=CODE_CONF_ACK; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1016 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1017 * analyzed is a bit field and marks all already analyzed |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1018 * configuration options in order to reject all configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1019 * which are listed more than once |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1020 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1021 analyzed=0; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1022 while(pos < packet_len) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1023 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1024 type_len=packet->buffer[pos + 1];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1025 switch(packet->buffer[pos])/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1026 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1027 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1028 * yet supported configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1029 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1030 case TYPE_HC: /* Header Compression */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1031 protocol_hc = packet->buffer[pos + 2];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1032 protocol_hc <<= 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1033 protocol_hc+= packet->buffer[pos + 3];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1034 if(protocol_hc EQ DTI_PID_CTCP) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1035 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1036 ppp_data->ncp.r_hc = PPP_HC_VJ; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1037 ppp_data->ncp.r_msid = packet->buffer[pos + 4];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1038 csid = packet->buffer[pos + 5];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1039 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1040 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1041 switch(code_ret) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1042 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1043 case CODE_CONF_ACK: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1044 if(((analyzed & (1UL << MASK_TYPE_HC)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1045 (ppp_data->ncp.r_hc EQ ppp_data->ncp.req_hc)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1046 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1047 if((ppp_data->ncp.r_hc EQ PPP_HC_VJ) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1048 (type_len EQ LENGTH_HC_VJ)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1049 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1050 if((ppp_data->mode EQ PPP_SERVER) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1051 (ppp_data->ncp.r_msid >= ppp_data->ncp.s_msid) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1052 (csid EQ PPP_CSID_YES) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1053 (ppp_data->ncp.s_hc EQ PPP_HC_VJ)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1054 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1055 analyzed|=(1UL << MASK_TYPE_HC); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1056 pos+= LENGTH_HC_VJ; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1057 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1058 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1059 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1060 * include here negotiation in client mode |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1061 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1062 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1063 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1064 * include here additional header compression protocols |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1065 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1066 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1067 code_ret=CODE_CONF_NAK; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1068 /* fall through */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1069 case CODE_CONF_NAK: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1070 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1071 * this configuration option will NAKed only if the compression |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1072 * protocol is not Van Jacobson Header Compression |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1073 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1074 if(((analyzed & (1UL << MASK_TYPE_HC)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1075 (ppp_data->ncp.req_hc NEQ PPP_HC_DEFAULT) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1076 (ppp_data->ncp.s_hc EQ PPP_HC_VJ) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1077 ((protocol_hc NEQ DTI_PID_CTCP) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1078 (type_len NEQ LENGTH_HC_VJ) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1079 ((ppp_data->ncp.r_msid >= ppp_data->ncp.s_msid) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1080 (csid EQ PPP_CSID_YES)))) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1081 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1082 analyzed|= (1UL << MASK_TYPE_HC); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1083 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1084 error_found = FALSE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1085 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1086 * this implementation is only for server mode |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1087 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1088 if(type_len < LENGTH_HC_VJ) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1089 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1090 T_desc2* temp_desc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1091 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1092 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1093 * create a new larger packet and copy the content |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1094 * of the old packet into the new |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1095 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1096 MALLOC (temp_desc, (USHORT)(sizeof(T_desc2) - 1 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1097 + packet_len |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1098 + LENGTH_HC_VJ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1099 - type_len)); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1100 temp_desc->next = packet->next; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1101 temp_desc->len = packet_len + LENGTH_HC_VJ - type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1102 memcpy(temp_desc->buffer, packet->buffer, pos);/*lint !e669 !e670 possible data overrun*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1103 memcpy(&temp_desc->buffer[pos + LENGTH_HC_VJ - type_len], |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1104 &packet->buffer[pos], |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1105 packet_len - pos);/*lint !e662 !e669 !e670 possible creation of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1106 arb_discard_packet(packet); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1107 packet_len+= (LENGTH_HC_VJ - type_len); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1108 pos += (LENGTH_HC_VJ - type_len); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1109 packet = temp_desc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1110 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1111 error_found = TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1112 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1113 else if(ppp_data->ncp.r_hc NEQ PPP_HC_VJ) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1114 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1115 error_found = TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1116 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1117 else if(type_len > LENGTH_HC_VJ) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1118 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1119 error_found = TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1120 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1121 if(error_found EQ TRUE) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1122 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1123 packet->buffer[copy_pos] = TYPE_HC;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1124 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1125 packet->buffer[copy_pos] = LENGTH_HC_VJ;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1126 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1127 packet->buffer[copy_pos] = PROTOCOL_VJ_MSB;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1128 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1129 packet->buffer[copy_pos] = PROTOCOL_VJ_LSB;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1130 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1131 packet->buffer[copy_pos] = ppp_data->ncp.req_msid;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1132 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1133 packet->buffer[copy_pos] = PPP_CSID_YES;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1134 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1135 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1136 pos+= type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1137 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1138 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1139 code_ret = CODE_CONF_REJ; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1140 copy_pos = 4; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1141 /* fall through */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1142 case CODE_CONF_REJ: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1143 if(((analyzed & (1UL << MASK_TYPE_HC)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1144 (ppp_data->ncp.req_hc NEQ PPP_HC_DEFAULT) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1145 (ppp_data->ncp.s_hc EQ PPP_HC_VJ) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1146 ((ppp_data->ncp.s_rejected & (1UL << MASK_TYPE_HC)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1147 ((protocol_hc NEQ DTI_PID_CTCP) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1148 (type_len NEQ LENGTH_HC_VJ) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1149 ((ppp_data->ncp.r_msid >= ppp_data->ncp.s_msid) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1150 (csid EQ PPP_CSID_YES)))) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1151 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1152 analyzed|= (1UL << MASK_TYPE_HC); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1153 pos+= type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1154 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1155 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1156 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1157 * set s_hc to default because we reject this configuration option |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1158 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1159 ppp_data->ncp.s_hc = PPP_HC_DEFAULT; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1160 while(type_len > 0) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1161 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1162 packet->buffer[copy_pos]=packet->buffer[pos];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1163 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1164 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1165 type_len--; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1166 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1167 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1168 default: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1169 TRACE_ERROR("Packet return code invalid"); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1170 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1171 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1172 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1173 case TYPE_IP: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1174 ip = packet->buffer[pos + 2];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1175 ip = (ip << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1176 ip+= packet->buffer[pos + 3];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1177 ip = (ip << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1178 ip+= packet->buffer[pos + 4];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1179 ip = (ip << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1180 ip+= packet->buffer[pos + 5];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1181 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1182 switch(code_ret) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1183 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1184 case CODE_CONF_ACK: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1185 if(((analyzed & (1UL << MASK_TYPE_IP)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1186 (type_len EQ LENGTH_IP)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1187 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1188 if((ppp_data->mode EQ PPP_SERVER) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1189 (((ip EQ ppp_data->ncp.req_ip) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1190 (ppp_data->ncp.req_ip NEQ PPP_IP_DEFAULT)) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1191 ((ip NEQ PPP_IP_DEFAULT) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1192 (ppp_data->ncp.req_ip EQ PPP_IP_DEFAULT)))) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1193 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1194 analyzed|=(1UL << MASK_TYPE_IP); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1195 ppp_data->ncp.n_ip = ip; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1196 pos+=LENGTH_IP; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1197 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1198 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1199 else if((ppp_data->mode EQ PPP_CLIENT) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1200 (ip NEQ PPP_IP_DEFAULT)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1201 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1202 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1203 * accept Gateway address |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1204 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1205 analyzed|=(1UL << MASK_TYPE_IP); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1206 ppp_data->ncp.n_gateway = ip; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1207 pos+=LENGTH_IP; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1208 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1209 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1210 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1211 code_ret=CODE_CONF_NAK; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1212 /* fall through */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1213 case CODE_CONF_NAK: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1214 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1215 * this option will be rejected in following cases: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1216 * - occurence more than once |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1217 * - in client mode if received IP is dynamic |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1218 * - in server mode if received and requested IP are dynamic |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1219 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1220 if(((analyzed & (1UL << MASK_TYPE_IP)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1221 (((ppp_data->mode EQ PPP_SERVER) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1222 ((ip NEQ ppp_data->ncp.req_ip) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1223 (ppp_data->ncp.req_ip NEQ PPP_IP_DEFAULT))) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1224 ((ppp_data->mode EQ PPP_CLIENT) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1225 (ip NEQ PPP_IP_DEFAULT)))) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1226 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1227 analyzed|=(1UL << MASK_TYPE_IP); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1228 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1229 error_found=FALSE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1230 if(type_len < LENGTH_IP) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1231 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1232 T_desc2* temp_desc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1233 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1234 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1235 * create a new larger packet and copy the content |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1236 * of the old packet into the new |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1237 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1238 MALLOC (temp_desc, (USHORT)(sizeof(T_desc2) - 1 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1239 + packet_len |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1240 + LENGTH_IP |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1241 - type_len)); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1242 temp_desc->next = packet->next; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1243 temp_desc->len = packet_len + LENGTH_IP - type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1244 memcpy(temp_desc->buffer, packet->buffer, pos);/*lint !e669 !e670 Possible data overrun*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1245 memcpy(&temp_desc->buffer[pos + LENGTH_IP - type_len], |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1246 &packet->buffer[pos], |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1247 packet_len - pos);/*lint !e662 !e669 !e670 possible creation of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1248 arb_discard_packet(packet); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1249 packet_len += (LENGTH_IP - type_len); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1250 pos += (LENGTH_IP - type_len); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1251 packet = temp_desc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1252 error_found = TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1253 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1254 else if((ip NEQ ppp_data->ncp.req_ip) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1255 (ppp_data->ncp.req_ip NEQ PPP_IP_DEFAULT) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1256 (ppp_data->mode EQ PPP_SERVER)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1257 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1258 error_found=TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1259 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1260 else if(type_len > LENGTH_IP) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1261 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1262 error_found=TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1263 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1264 if(error_found EQ TRUE) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1265 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1266 packet->buffer[copy_pos]=TYPE_IP;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1267 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1268 packet->buffer[copy_pos]=LENGTH_IP;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1269 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1270 packet->buffer[copy_pos]=(UBYTE)(ppp_data->ncp.req_ip >> 24);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1271 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1272 packet->buffer[copy_pos]=(UBYTE)((ppp_data->ncp.req_ip >> 16) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1273 & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1274 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1275 packet->buffer[copy_pos]=(UBYTE)((ppp_data->ncp.req_ip >> 8) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1276 & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1277 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1278 packet->buffer[copy_pos]=(UBYTE)(ppp_data->ncp.req_ip |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1279 & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1280 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1281 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1282 pos+= type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1283 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1284 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1285 code_ret = CODE_CONF_REJ; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1286 copy_pos = 4; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1287 /* fall through */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1288 case CODE_CONF_REJ: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1289 if(((analyzed & (1UL << MASK_TYPE_IP)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1290 (((ppp_data->mode EQ PPP_SERVER) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1291 ((ip NEQ ppp_data->ncp.req_ip) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1292 (ppp_data->ncp.req_ip NEQ PPP_IP_DEFAULT))) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1293 ((ppp_data->mode EQ PPP_CLIENT) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1294 (ip NEQ PPP_IP_DEFAULT)))) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1295 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1296 analyzed|=(1UL << MASK_TYPE_IP); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1297 pos+=type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1298 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1299 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1300 while(type_len > 0) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1301 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1302 packet->buffer[copy_pos]=packet->buffer[pos];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1303 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1304 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1305 type_len--; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1306 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1307 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1308 default: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1309 TRACE_ERROR("Packet return code invalid"); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1310 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1311 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1312 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1313 case TYPE_PDNS: /* only in server mode allowed */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1314 pdns = packet->buffer[pos + 2];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1315 pdns = (pdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1316 pdns+= packet->buffer[pos + 3];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1317 pdns = (pdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1318 pdns+= packet->buffer[pos + 4];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1319 pdns = (pdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1320 pdns+= packet->buffer[pos + 5];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1321 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1322 switch(code_ret) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1323 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1324 case CODE_CONF_ACK: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1325 if(((analyzed & (1UL << MASK_TYPE_PDNS)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1326 (ppp_data->mode EQ PPP_SERVER) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1327 (type_len EQ LENGTH_PDNS) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1328 (((pdns EQ ppp_data->ncp.req_pdns) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1329 (ppp_data->ncp.req_pdns NEQ PPP_PDNS_DEFAULT)) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1330 ((pdns NEQ PPP_PDNS_DEFAULT) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1331 (ppp_data->ncp.req_pdns EQ PPP_PDNS_DEFAULT)))) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1332 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1333 analyzed|=(1UL << MASK_TYPE_PDNS); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1334 ppp_data->ncp.n_pdns = pdns; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1335 pos+= LENGTH_PDNS; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1336 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1337 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1338 code_ret=CODE_CONF_NAK; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1339 /* fall through */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1340 case CODE_CONF_NAK: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1341 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1342 * this option will be rejected in following cases: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1343 * - occurence more than once |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1344 * - client mode |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1345 * - received and requested PDNS are dynamic |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1346 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1347 if(((analyzed & (1UL << MASK_TYPE_PDNS)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1348 (ppp_data->mode EQ PPP_SERVER) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1349 ((pdns NEQ ppp_data->ncp.req_pdns) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1350 (ppp_data->ncp.req_pdns NEQ PPP_PDNS_DEFAULT))) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1351 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1352 analyzed|=(1UL << MASK_TYPE_PDNS); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1353 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1354 error_found=FALSE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1355 if(type_len < LENGTH_PDNS) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1356 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1357 T_desc2* temp_desc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1358 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1359 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1360 * create a new larger packet and copy the content |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1361 * of the old packet into the new |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1362 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1363 MALLOC (temp_desc, (USHORT)(sizeof(T_desc2) - 1 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1364 + packet_len |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1365 + LENGTH_PDNS |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1366 - type_len)); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1367 temp_desc->next = packet->next; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1368 temp_desc->len = packet_len + LENGTH_PDNS - type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1369 memcpy(temp_desc->buffer, packet->buffer, pos);/*lint !e669 !e670 Possible data overrun*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1370 memcpy(&temp_desc->buffer[pos + LENGTH_PDNS - type_len], |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1371 &packet->buffer[pos], |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1372 packet_len - pos);/*lint !e662 !e669 !e670 possible creation of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1373 arb_discard_packet(packet); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1374 packet_len += (LENGTH_PDNS - type_len); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1375 pos += (LENGTH_PDNS - type_len); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1376 packet = temp_desc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1377 error_found = TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1378 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1379 else if((pdns NEQ ppp_data->ncp.req_pdns) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1380 (ppp_data->ncp.req_pdns NEQ PPP_PDNS_DEFAULT)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1381 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1382 error_found=TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1383 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1384 else if(type_len > LENGTH_PDNS) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1385 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1386 error_found=TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1387 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1388 if(error_found EQ TRUE) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1389 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1390 packet->buffer[copy_pos]=TYPE_PDNS;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1391 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1392 packet->buffer[copy_pos]=LENGTH_PDNS;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1393 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1394 packet->buffer[copy_pos]=(UBYTE)(ppp_data->ncp.req_pdns >> 24);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1395 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1396 packet->buffer[copy_pos]=(UBYTE)((ppp_data->ncp.req_pdns >> 16) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1397 & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1398 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1399 packet->buffer[copy_pos]=(UBYTE)((ppp_data->ncp.req_pdns >> 8) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1400 & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1401 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1402 packet->buffer[copy_pos]=(UBYTE)(ppp_data->ncp.req_pdns |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1403 & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1404 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1405 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1406 pos+= type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1407 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1408 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1409 code_ret = CODE_CONF_REJ; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1410 copy_pos = 4; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1411 /* fall through */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1412 case CODE_CONF_REJ: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1413 if(((analyzed & (1UL << MASK_TYPE_PDNS)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1414 (ppp_data->mode EQ PPP_SERVER) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1415 ((pdns NEQ ppp_data->ncp.req_pdns) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1416 (ppp_data->ncp.req_pdns NEQ PPP_PDNS_DEFAULT))) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1417 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1418 analyzed|=(1UL << MASK_TYPE_PDNS); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1419 pos+=type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1420 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1421 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1422 while(type_len > 0) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1423 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1424 packet->buffer[copy_pos]=packet->buffer[pos];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1425 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1426 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1427 type_len--; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1428 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1429 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1430 default: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1431 TRACE_ERROR("Packet return code invalid"); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1432 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1433 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1434 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1435 case TYPE_SDNS: /* only in server mode allowed */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1436 sdns = packet->buffer[pos + 2];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1437 sdns = (sdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1438 sdns+= packet->buffer[pos + 3];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1439 sdns = (sdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1440 sdns+= packet->buffer[pos + 4];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1441 sdns = (sdns << 8); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1442 sdns+= packet->buffer[pos + 5];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1443 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1444 switch(code_ret) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1445 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1446 case CODE_CONF_ACK: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1447 if(((analyzed & (1UL << MASK_TYPE_SDNS)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1448 (ppp_data->mode EQ PPP_SERVER) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1449 (type_len EQ LENGTH_SDNS) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1450 (((sdns EQ ppp_data->ncp.req_sdns) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1451 (ppp_data->ncp.req_sdns NEQ PPP_SDNS_DEFAULT)) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1452 ((sdns NEQ PPP_SDNS_DEFAULT) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1453 (ppp_data->ncp.req_sdns EQ PPP_SDNS_DEFAULT)))) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1454 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1455 analyzed|=(1UL << MASK_TYPE_SDNS); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1456 ppp_data->ncp.n_sdns = sdns; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1457 pos+= LENGTH_SDNS; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1458 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1459 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1460 code_ret=CODE_CONF_NAK; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1461 /* fall through */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1462 case CODE_CONF_NAK: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1463 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1464 * this option will be rejected in following cases: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1465 * - occurence more than once |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1466 * - client mode |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1467 * - received and requested SDNS are dynamic |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1468 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1469 if(((analyzed & (1UL << MASK_TYPE_SDNS)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1470 (ppp_data->mode EQ PPP_SERVER) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1471 ((sdns NEQ ppp_data->ncp.req_sdns) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1472 (ppp_data->ncp.req_sdns NEQ PPP_SDNS_DEFAULT))) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1473 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1474 analyzed|=(1UL << MASK_TYPE_SDNS); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1475 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1476 error_found=FALSE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1477 if(type_len < LENGTH_SDNS) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1478 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1479 T_desc2* temp_desc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1480 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1481 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1482 * create a new larger packet and copy the content |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1483 * of the old packet into the new |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1484 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1485 MALLOC (temp_desc, (USHORT)(sizeof(T_desc2) - 1 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1486 + packet_len |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1487 + LENGTH_SDNS |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1488 - type_len)); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1489 temp_desc->next = packet->next; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1490 temp_desc->len = packet_len + LENGTH_SDNS - type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1491 memcpy(temp_desc->buffer, packet->buffer, pos);/*lint !e669 !e670 Possible data overrun*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1492 memcpy(&temp_desc->buffer[pos + LENGTH_SDNS - type_len], |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1493 &packet->buffer[pos], |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1494 packet_len - pos);/*lint !e662 !e669 !e670 possible creation of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1495 arb_discard_packet(packet); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1496 packet_len += (LENGTH_SDNS - type_len); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1497 pos += (LENGTH_SDNS - type_len); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1498 packet = temp_desc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1499 error_found = TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1500 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1501 else if((sdns NEQ ppp_data->ncp.req_sdns) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1502 (ppp_data->ncp.req_sdns NEQ PPP_SDNS_DEFAULT)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1503 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1504 error_found=TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1505 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1506 else if(type_len > LENGTH_SDNS) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1507 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1508 error_found=TRUE; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1509 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1510 if(error_found EQ TRUE) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1511 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1512 packet->buffer[copy_pos]=TYPE_SDNS;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1513 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1514 packet->buffer[copy_pos]=LENGTH_SDNS;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1515 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1516 packet->buffer[copy_pos]=(UBYTE)(ppp_data->ncp.req_sdns >> 24);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1517 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1518 packet->buffer[copy_pos]=(UBYTE)((ppp_data->ncp.req_sdns >> 16) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1519 & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1520 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1521 packet->buffer[copy_pos]=(UBYTE)((ppp_data->ncp.req_sdns >> 8) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1522 & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1523 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1524 packet->buffer[copy_pos]=(UBYTE)(ppp_data->ncp.req_sdns |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1525 & 0x000000ff);/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1526 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1527 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1528 pos+= type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1529 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1530 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1531 code_ret = CODE_CONF_REJ; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1532 copy_pos = 4; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1533 /* fall through */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1534 case CODE_CONF_REJ: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1535 if(((analyzed & (1UL << MASK_TYPE_SDNS)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1536 (ppp_data->mode EQ PPP_SERVER) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1537 ((sdns NEQ ppp_data->ncp.req_sdns) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1538 (ppp_data->ncp.req_sdns NEQ PPP_SDNS_DEFAULT))) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1539 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1540 analyzed|=(1UL << MASK_TYPE_SDNS); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1541 pos+=type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1542 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1543 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1544 while(type_len > 0) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1545 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1546 packet->buffer[copy_pos]=packet->buffer[pos];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1547 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1548 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1549 type_len--; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1550 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1551 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1552 default: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1553 TRACE_ERROR("Packet return code invalid"); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1554 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1555 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1556 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1557 default: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1558 switch(code_ret) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1559 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1560 case CODE_CONF_ACK: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1561 case CODE_CONF_NAK: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1562 code_ret=CODE_CONF_REJ; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1563 copy_pos=4; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1564 /* fall through */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1565 default: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1566 while(type_len > 0) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1567 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1568 packet->buffer[copy_pos]=packet->buffer[pos];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1569 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1570 pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1571 type_len--; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1572 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1573 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1574 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1575 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1576 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1577 if(((analyzed & (1UL << MASK_TYPE_HC)) EQ 0) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1578 (ppp_data->ncp.s_hc EQ PPP_HC_VJ) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1579 (ppp_data->ncp.req_hc EQ PPP_HC_VJ) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1580 (code_ret NEQ CODE_CONF_REJ)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1581 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1582 T_desc2* temp_desc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1583 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1584 * add header compression to the configure Nak packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1585 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1586 code_ret = CODE_CONF_NAK; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1587 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1588 * create a new larger packet and copy the content |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1589 * of the old packet into the new |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1590 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1591 MALLOC (temp_desc, (USHORT)(sizeof(T_desc2) - 1 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1592 + packet_len |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1593 + LENGTH_HC_VJ)); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1594 temp_desc->next = packet->next; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1595 temp_desc->len = packet_len + LENGTH_HC_VJ; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1596 memcpy(temp_desc->buffer, packet->buffer, copy_pos);/*lint !e669 !e670 Possible data overrun*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1597 arb_discard_packet(packet); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1598 packet_len+= LENGTH_HC_VJ; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1599 packet = temp_desc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1600 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1601 * insert header compression option |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1602 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1603 packet->buffer[copy_pos] = TYPE_HC;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1604 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1605 packet->buffer[copy_pos] = LENGTH_HC_VJ;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1606 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1607 packet->buffer[copy_pos] = PROTOCOL_VJ_MSB;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1608 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1609 packet->buffer[copy_pos] = PROTOCOL_VJ_LSB;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1610 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1611 packet->buffer[copy_pos] = ppp_data->ncp.req_msid;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1612 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1613 packet->buffer[copy_pos] = PPP_CSID_YES;/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1614 copy_pos++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1615 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1616 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1617 * set new Code field in return packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1618 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1619 packet->buffer[0]=code_ret; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1620 *ptr_packet=packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1621 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1622 if(copy_pos > 4) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1623 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1624 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1625 * some configuration options are not acceptable |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1626 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1627 *forward=FORWARD_RCRN; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1628 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1629 * set new Length field |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1630 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1631 packet->len=copy_pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1632 packet->buffer[2]=(UBYTE)(copy_pos >> 8);/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1633 packet->buffer[3]=(UBYTE)(copy_pos & 0x00ff);/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1634 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1635 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1636 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1637 * all configuration options are acceptable |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1638 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1639 *forward=FORWARD_RCRP; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1640 } /* ncp_rcr() */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1641 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1642 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1643 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1644 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1645 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1646 | Function : ncp_rca |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1647 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1648 | Description : The function ncp_rca() checks whether the given |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1649 | Configure Ack packet is valid and if so it returns |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1650 | FORWARD_RCA. Otherwise it returns FORWARD_DISCARD. |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1651 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1652 | Parameters : packet - Configure Ack packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1653 | forward - returns result of analysis |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1654 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1655 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1656 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1657 GLOBAL void ncp_rca (T_desc2* packet, UBYTE* forward) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1658 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1659 USHORT packet_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1660 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1661 TRACE_FUNCTION( "ncp_rca" ); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1662 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1663 packet_len = packet->buffer[2];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1664 packet_len <<= 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1665 packet_len+= packet->buffer[3];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1666 if((packet_len < 4) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1667 (packet_len > packet->len) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1668 (ppp_data->ncp.scr EQ FALSE) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1669 (packet->buffer[1] NEQ ppp_data->ncp.nscri))/*lint !e415 access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1670 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1671 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1672 * invalid packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1673 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1674 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1675 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1676 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1677 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1678 * acceptable packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1679 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1680 arb_discard_packet(packet); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1681 ppp_data->ncp.nscri++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1682 *forward=FORWARD_RCA; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1683 } /* ncp_rca() */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1684 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1685 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1686 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1687 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1688 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1689 | Function : ncp_rcn |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1690 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1691 | Description : The function ncp_rcn() analyze the given |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1692 | Configure Nak packet, changes some requested values and returns |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1693 | FORWARD_RCN |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1694 | The packet pointer points to an appropriate response packet. |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1695 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1696 | Parameters : ptr_packet - Configure Nak packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1697 | forward - returns result of analysis |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1698 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1699 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1700 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1701 GLOBAL void ncp_rcn (T_desc2** ptr_packet, UBYTE* forward) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1702 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1703 T_desc2* packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1704 USHORT packet_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1705 UBYTE type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1706 USHORT pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1707 USHORT protocol_hc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1708 ULONG ip; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1709 ULONG pdns; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1710 ULONG sdns; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1711 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1712 TRACE_FUNCTION( "ncp_rcn" ); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1713 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1714 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1715 * check for correct length field |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1716 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1717 packet = *ptr_packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1718 packet_len = packet->buffer[2];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1719 packet_len <<= 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1720 packet_len+= packet->buffer[3];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1721 if((packet_len > packet->len) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1722 (packet_len < 4) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1723 (ppp_data->ncp.scr EQ FALSE) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1724 (packet->buffer[1] NEQ ppp_data->ncp.nscri))/*lint !e415 access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1725 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1726 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1727 * invalid packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1728 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1729 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1730 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1731 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1732 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1733 * check consistence of length of packet and length of configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1734 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1735 pos=5; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1736 while(pos < packet_len) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1737 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1738 if(packet->buffer[pos] < 2)/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1739 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1740 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1741 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1742 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1743 pos+= packet->buffer[pos];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1744 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1745 if((pos - 1) NEQ packet_len) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1746 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1747 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1748 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1749 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1750 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1751 * analyze configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1752 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1753 pos=4; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1754 while(pos < packet_len) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1755 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1756 type_len=packet->buffer[pos + 1];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1757 switch(packet->buffer[pos])/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1758 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1759 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1760 * yet supported configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1761 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1762 case TYPE_HC: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1763 protocol_hc = packet->buffer[pos + 2];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1764 protocol_hc <<= 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1765 protocol_hc+= packet->buffer[pos + 3];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1766 if((protocol_hc EQ DTI_PID_CTCP) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1767 (ppp_data->ncp.req_hc EQ PPP_HC_VJ) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1768 (type_len EQ LENGTH_HC_VJ)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1769 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1770 ppp_data->ncp.s_rejected &= ~(1UL << MASK_TYPE_HC); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1771 ppp_data->ncp.s_hc = PPP_HC_VJ; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1772 ppp_data->ncp.s_msid = ppp_data->ncp.req_msid; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1773 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1774 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1775 case TYPE_IP: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1776 ip = packet->buffer[pos + 2];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1777 ip = ip << 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1778 ip+= packet->buffer[pos + 3];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1779 ip = ip << 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1780 ip+= packet->buffer[pos + 4];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1781 ip = ip << 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1782 ip+= packet->buffer[pos + 5];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1783 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1784 if(type_len EQ LENGTH_IP) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1785 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1786 ppp_data->ncp.s_rejected &= ~(1UL << MASK_TYPE_IP); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1787 if(ppp_data->mode EQ PPP_CLIENT) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1788 ppp_data->ncp.n_ip = ip; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1789 else if(ppp_data->ncp.req_gateway EQ PPP_GATEWAY_DEFAULT) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1790 ppp_data->ncp.n_gateway = ip; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1791 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1792 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1793 case TYPE_PDNS: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1794 pdns = packet->buffer[pos + 2];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1795 pdns = pdns << 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1796 pdns+= packet->buffer[pos + 3];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1797 pdns = pdns << 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1798 pdns+= packet->buffer[pos + 4];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1799 pdns = pdns << 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1800 pdns+= packet->buffer[pos + 5];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1801 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1802 if((type_len EQ LENGTH_PDNS) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1803 (ppp_data->mode EQ PPP_CLIENT)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1804 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1805 ppp_data->ncp.s_rejected &= ~(1UL << MASK_TYPE_PDNS); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1806 ppp_data->ncp.n_pdns = pdns; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1807 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1808 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1809 case TYPE_SDNS: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1810 sdns = packet->buffer[pos + 2];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1811 sdns = sdns << 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1812 sdns+= packet->buffer[pos + 3];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1813 sdns = sdns << 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1814 sdns+= packet->buffer[pos + 4];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1815 sdns = sdns << 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1816 sdns+= packet->buffer[pos + 5];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1817 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1818 if((type_len EQ LENGTH_SDNS) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1819 (ppp_data->mode EQ PPP_CLIENT)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1820 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1821 ppp_data->ncp.s_rejected &= ~(1UL << MASK_TYPE_SDNS); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1822 ppp_data->ncp.n_sdns = sdns; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1823 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1824 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1825 default: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1826 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1827 * ignore unknown configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1828 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1829 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1830 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1831 pos+= type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1832 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1833 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1834 * free this packet and create a new with changed configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1835 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1836 arb_discard_packet(packet); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1837 *forward=FORWARD_RCN; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1838 ppp_data->ncp.nscri++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1839 ncp_get_scr(&packet); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1840 *ptr_packet=packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1841 } /* ncp_rcn() */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1842 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1843 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1844 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1845 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1846 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1847 | Function : ncp_rcj |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1848 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1849 | Description : The function ncp_rcj() analyze the given |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1850 | Configure Reject packet, marks some values as rejected and |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1851 | returns FORWARD_RCJ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1852 | The packet pointer points to an appropriate response packet. |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1853 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1854 | Parameters : ptr_packet - pointer to a Configure Reject packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1855 | forward - returns result of analysis |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1856 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1857 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1858 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1859 GLOBAL void ncp_rcj (T_desc2** ptr_packet, UBYTE* forward) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1860 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1861 T_desc2* packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1862 USHORT packet_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1863 UBYTE type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1864 USHORT pos; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1865 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1866 TRACE_FUNCTION( "ncp_rcj" ); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1867 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1868 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1869 * check for correct length field |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1870 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1871 packet = *ptr_packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1872 packet_len = packet->buffer[2];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1873 packet_len <<= 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1874 packet_len+= packet->buffer[3];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1875 if((packet_len > packet->len) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1876 (packet_len < 4) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1877 (ppp_data->ncp.scr EQ FALSE) || |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1878 (packet->buffer[1] NEQ ppp_data->ncp.nscri))/*lint !e415 access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1879 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1880 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1881 * invalid packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1882 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1883 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1884 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1885 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1886 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1887 * check consistence of length of packet and length of configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1888 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1889 pos=5; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1890 while(pos < packet_len) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1891 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1892 if(packet->buffer[pos] < 2)/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1893 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1894 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1895 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1896 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1897 pos+= packet->buffer[pos];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1898 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1899 if((pos - 1) NEQ packet_len) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1900 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1901 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1902 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1903 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1904 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1905 * analyze configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1906 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1907 pos=4; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1908 while(pos < packet_len) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1909 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1910 type_len=packet->buffer[pos + 1];/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1911 switch(packet->buffer[pos])/*lint !e662 !e661 possible creation and access of out-of-bounds pointer*/ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1912 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1913 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1914 * yet supported configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1915 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1916 case TYPE_HC: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1917 ppp_data->ncp.s_rejected|= (1UL << MASK_TYPE_HC); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1918 ppp_data->ncp.s_hc = PPP_HC_DEFAULT; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1919 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1920 case TYPE_IP: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1921 if (ppp_data->mode EQ PPP_CLIENT) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1922 { /* error: server has to support valid IP address */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1923 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1924 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1925 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1926 ppp_data->ncp.s_rejected |= (1UL << MASK_TYPE_IP); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1927 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1928 case TYPE_PDNS: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1929 ppp_data->ncp.s_rejected |= (1UL << MASK_TYPE_PDNS); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1930 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1931 case TYPE_SDNS: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1932 ppp_data->ncp.s_rejected |= (1UL << MASK_TYPE_SDNS); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1933 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1934 default: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1935 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1936 * ignore unknown configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1937 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1938 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1939 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1940 pos+= type_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1941 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1942 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1943 * free this packet and create a new with changed configuration options |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1944 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1945 arb_discard_packet(packet); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1946 *forward=FORWARD_RCN; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1947 ppp_data->ncp.nscri++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1948 ncp_get_scr(&packet); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1949 *ptr_packet=packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1950 } /* ncp_rcj() */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1951 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1952 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1953 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1954 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1955 +------------------------------------------------------------------------------ |
d393cd9bb723
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1956 | Function : ncp_rtr |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1957 +------------------------------------------------------------------------------ |
d393cd9bb723
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1958 | Description : The function ncp_rtr() checks whether the given |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1959 | Terminate Request packet is valid and if so it returns |
d393cd9bb723
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1960 | FORWARD_RCA. Otherwise it returns FORWARD_DISCARD. |
d393cd9bb723
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1961 | |
d393cd9bb723
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1962 | Parameters : ptr_packet - pointer to a Terminate Request packet |
d393cd9bb723
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1963 | forward - returns result of analysis |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1964 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1965 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1966 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1967 GLOBAL void ncp_rtr (T_desc2** ptr_packet, UBYTE* forward) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1968 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1969 T_desc2* packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1970 USHORT packet_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1971 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1972 TRACE_FUNCTION( "ncp_rtr" ); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1973 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1974 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1975 * check for correct length field |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1976 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1977 packet = *ptr_packet; |
d393cd9bb723
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1978 packet_len = packet->buffer[2];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1979 packet_len <<= 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1980 packet_len+= packet->buffer[3];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1981 if((packet_len < 4) || (packet_len > packet->len)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1982 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1983 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1984 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1985 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1986 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1987 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1988 * change code field |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1989 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1990 packet->buffer[0]=CODE_TERM_ACK; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1991 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1992 *forward=FORWARD_RTR; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1993 } /* ncp_rtr() */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1994 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1995 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1996 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1997 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1998 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1999 | Function : ncp_rta |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2000 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2001 | Description : The function ncp_rta() checks whether the given |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2002 | Terminate Ack packet is valid and if so it returns |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2003 | FORWARD_RTA. Otherwise it returns FORWARD_DISCARD. |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2004 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2005 | Parameters : packet - Terminate Ack packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2006 | forward - returns result of analysis |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2007 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2008 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2009 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2010 GLOBAL void ncp_rta (T_desc2* packet, UBYTE* forward) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2011 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2012 USHORT packet_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2013 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2014 TRACE_FUNCTION( "ncp_rta" ); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2015 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2016 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2017 * check for correct length field |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2018 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2019 packet_len = packet->buffer[2];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2020 packet_len <<= 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2021 packet_len+= packet->buffer[3];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2022 if((packet_len < 4) || (packet_len > packet->len)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2023 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2024 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2025 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2026 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2027 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2028 if((ppp_data->ncp.str EQ TRUE) && |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2029 (packet->buffer[1] NEQ ppp_data->ncp.nstri))/*lint !e415 access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2030 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2031 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2032 * invalid packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2033 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2034 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2035 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2036 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2037 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2038 * acceptable packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2039 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2040 arb_discard_packet(packet); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2041 ppp_data->ncp.nstri++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2042 *forward=FORWARD_RTA; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2043 } /* ncp_rta() */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2044 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2045 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2046 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2047 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2048 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2049 | Function : ncp_rxj |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2050 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2051 | Description : The function ncp_rxj() analyzes whether the given Code Reject |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2052 | is acceptable. If not it returns FORWARD_RXJN. |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2053 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2054 | Parameters : ptr_packet - Pointer to a Code Reject packet |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2055 | forward - returns result of analysis |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2056 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2057 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2058 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2059 GLOBAL void ncp_rxj (T_desc2** ptr_packet, UBYTE* forward) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2060 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2061 USHORT packet_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2062 T_desc2* packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2063 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2064 TRACE_FUNCTION( "ncp_rxj" ); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2065 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2066 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2067 * check for correct length field |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2068 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2069 packet = *ptr_packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2070 packet_len = packet->buffer[2];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2071 packet_len <<= 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2072 packet_len+= packet->buffer[3];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2073 if((packet_len < 5) || (packet_len > packet->len)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2074 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2075 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2076 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2077 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2078 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2079 switch(packet->buffer[4])/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2080 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2081 case CODE_CONF_REQ: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2082 case CODE_CONF_REJ: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2083 case CODE_CONF_NAK: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2084 case CODE_CONF_ACK: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2085 case CODE_TERM_REQ: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2086 case CODE_TERM_ACK: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2087 case CODE_CODE_REJ: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2088 arb_discard_packet(packet); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2089 ncp_get_str(&packet); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2090 *ptr_packet = packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2091 *forward = FORWARD_RXJN; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2092 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2093 default: |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2094 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2095 break; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2096 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2097 } /* ncp_rxj() */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2098 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2099 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2100 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2101 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2102 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2103 | Function : ncp_ruc |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2104 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2105 | Description : The function ncp_ruc() creates a Code Reject packet and returns |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2106 | FORWARD_RUC. |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2107 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2108 | Parameters : ptr_packet - packet with unknown code |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2109 | forward - returns result of analysis |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2110 | |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2111 +------------------------------------------------------------------------------ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2112 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2113 GLOBAL void ncp_ruc (T_desc2** ptr_packet, UBYTE* forward) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2114 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2115 T_desc2* packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2116 T_desc2* temp_desc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2117 USHORT packet_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2118 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2119 TRACE_FUNCTION( "ncp_ruc" ); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2120 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2121 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2122 * check for correct length field |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2123 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2124 packet = *ptr_packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2125 packet_len = packet->buffer[2];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2126 packet_len <<= 8; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2127 packet_len+= packet->buffer[3];/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2128 if((packet->len < packet_len) || (packet_len < 4)) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2129 { |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2130 *forward=FORWARD_DISCARD; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2131 return; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2132 } |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2133 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2134 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2135 * create a new larger packet and copy the content |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2136 * of the old packet into the new |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2137 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2138 packet_len+=4; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2139 if(packet_len > PPP_MRU_MIN) |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2140 packet_len = PPP_MRU_MIN; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2141 MALLOC (temp_desc, (USHORT)(sizeof(T_desc2) - 1 + packet_len)); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2142 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2143 temp_desc->next = packet->next; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2144 temp_desc->len = packet_len; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2145 memcpy(&temp_desc->buffer[4], packet->buffer, packet_len - 4);/*lint !e416 !e669 !e670 creation of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2146 arb_discard_packet(packet); |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2147 packet = temp_desc; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2148 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2149 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2150 * fill the first bytes to create a Code Reject |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2151 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2152 packet->buffer[0] = CODE_CODE_REJ; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2153 ppp_data->ncp.nscji++; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2154 packet->buffer[1] = ppp_data->ncp.nscji;/*lint !e415 access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2155 packet->buffer[2] = (UBYTE)(packet_len >> 8);/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2156 packet->buffer[3] = (UBYTE)(packet_len & 0x00ff);/*lint !e415 !e416 creation and access of out-of-bounds pointer */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2157 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2158 /* |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2159 * set return values |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2160 */ |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2161 *ptr_packet=packet; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2162 *forward=FORWARD_RUC; |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2163 |
d393cd9bb723
src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2164 } /* ncp_ruc() */ |