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annotate src/g23m-fad/ppp/ppp_papf.c @ 174:90eb61ecd093

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src/g23m-fad: initial import from TCS3.2/LoCosto
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 12 Oct 2016 05:40:46 +0000
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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 (PAP-statemachine)
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20 +-----------------------------------------------------------------------------
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21 */
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22
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23 #ifndef PPP_PAPF_C
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24 #define PPP_PAPF_C
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25 #endif /* !PPP_PAPF_C */
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26
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27 #define ENTITY_PPP
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28
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29 /*==== INCLUDES =============================================================*/
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30
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31 #include "typedefs.h" /* to get Condat data types */
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32 #include "vsi.h" /* to get a lot of macros */
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33 #include "macdef.h" /* to get a lot of macros */
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34 #include "custom.h" /* to get a lot of macros */
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35 #include "gsm.h" /* to get a lot of macros */
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36 #include "cnf_ppp.h" /* to get cnf-definitions */
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37 #include "mon_ppp.h" /* to get mon-definitions */
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38 #include "prim.h" /* to get the definitions of used SAP and directions */
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39 #include "dti.h" /* to get the DTILIB definitions */
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40 #include "ppp.h" /* to get the global entity definitions */
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41
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42 #include "ppp_arbf.h" /* to get function interface from arb */
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43 #include <string.h> /* to get memcpy */
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44
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45 /*==== CONST ================================================================*/
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46
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47 #define PAP_AUTH_ACK_LENGTH 5
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48
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49 /*
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50 * the authentication request packet must be passable to the ISP in protocol
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51 * configuration options (pco). The maximum length of pco is
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52 * 251 octets (253 - 2 (identification overhead) = 251). There must also be
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53 * space for other protocol packet, like LCP and IPCP.
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54 * LCP needs
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55 * 15 octets (3 (overhead pco) + 4 (overhead packet) + 4 (mru) + 4
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56 * (authentication protocol PAP) = 15) for server packet and
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57 * 11 octets (3 (overhead pco) + 4 (overhead packet) + 4 (mru) = 11) for
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58 * client packet.
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59 * IPCP needs
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60 * 31 octets (3 (overhead pco) + 4 (overhead packet) + 6 (IP address) + 6
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61 * (VJ header compression) + 6 (primary DNS) + 6 (secondary DNS) = 31) for
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62 * client packet and
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63 * 13 octets (3 (overhead pco) + 4 (overhead packet) + 6
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64 * (Gateway address) = 13) for gateway address packet.
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65 * PAP needs
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66 * 3 octets for pco overhead.
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67 */
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68 #define PAP_AUTH_REQ_LENGTH_MAX (251 - 15 - 11 - 31 - 13 - 3)
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69
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70 #define PAP_AUTH_NAK_TEXT "authentication packet to long"
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71 #define PAP_AUTH_NAK_TEXT_LENGTH sizeof(PAP_AUTH_NAK_TEXT)
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72 #define PAP_AUTH_NAK_LENGTH (5 + PAP_AUTH_NAK_TEXT_LENGTH)
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73
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74 /*==== LOCAL VARS ===========================================================*/
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75
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76 /*==== PRIVATE FUNCTIONS ====================================================*/
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77
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78 /*==== PUBLIC FUNCTIONS =====================================================*/
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79
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80
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81
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82 /*
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83 +------------------------------------------------------------------------------
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84 | Function : pap_init
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85 +------------------------------------------------------------------------------
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86 | Description : The function pap_init() initializes Password Authentication
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87 | Protocol
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88 |
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89 | Parameters : no parameters
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90 |
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91 +------------------------------------------------------------------------------
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92 */
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93 GLOBAL void pap_init ()
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94 {
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95 TRACE_FUNCTION( "pap_init" );
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96
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97 /*
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98 * initialize values
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99 */
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100 ppp_data->pap.counter = 0;
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101 ppp_data->pap.nari = 0;
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102 ppp_data->pap.ar_packet = NULL;
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103
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104 INIT_STATE( PPP_SERVICE_PAP , PAP_DOWN );
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105 } /* pap_init() */
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106
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107
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108
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109 /*
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110 +------------------------------------------------------------------------------
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111 | Function : pap_fill_out_packet
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112 +------------------------------------------------------------------------------
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113 | Description : The function pap_fill_out_packet() puts a PAP packet into
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114 | the protocol configuration list
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115 |
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116 | Parameters : pco_buf - pco list buffer
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117 | ptr_pos - position where to write the PAP packet, this value
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parents:
diff changeset
118 | must get back to the calling funtion
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 |
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parents:
diff changeset
120 +------------------------------------------------------------------------------
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122 GLOBAL void pap_fill_out_packet (UBYTE pco_buf[], USHORT* ptr_pos)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
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parents:
diff changeset
124 USHORT pos;
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parents:
diff changeset
125
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 TRACE_FUNCTION( "pap_fill_out_packet" );
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parents:
diff changeset
127
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
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parents:
diff changeset
128 pos = *ptr_pos;
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parents:
diff changeset
129
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 * copy stored authentication request packet
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 * Protocol ID
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 pco_buf[pos] = PROTOCOL_PAP_MSB;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 pos++;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 pco_buf[pos] = PROTOCOL_PAP_LSB;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 * Length of Protocol contents
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 pco_buf[pos] = (UBYTE)ppp_data->pap.ar_packet->len;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 * copy packet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 memcpy(&pco_buf[pos],
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 ppp_data->pap.ar_packet->buffer,
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 ppp_data->pap.ar_packet->len);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 pos+= ppp_data->pap.ar_packet->len;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 * return new position
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 *ptr_pos = pos;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 } /* pap_fill_out_packet() */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 +------------------------------------------------------------------------------
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 | Function : pap_get_sar
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 +------------------------------------------------------------------------------
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 | Description : The function pap_get_sar() returns a PAP Authenticate Request
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 | packet.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 | Parameters : ptr_packet - returns the Authenticate Request packet
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 | THE MEMORY FOR THE PACKET WILL BE ALLOCATED BY
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 | THIS FUNCTION
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 GLOBAL void pap_get_sar (T_desc2** ptr_packet)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 T_desc2* ret_desc;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 USHORT len_pos;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 USHORT pos;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 UBYTE i;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 TRACE_FUNCTION( "pap_get_sar" );
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parents:
diff changeset
181
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 * Allocate the necessary size for the data descriptor. The size is
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 * calculated as follows:
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 * - take the size of a descriptor structure
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 * - subtract one because of the array buffer[1] to get the size of
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 * descriptor control information
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 * - add number of octets of descriptor data
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 MALLOC (ret_desc, (USHORT)(sizeof(T_desc2) - 1 +
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 5 + /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 * 1 octet code field
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 * 1 octet identifier field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 * 2 octets packet length field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 * 1 octet peer id length field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 ppp_data->login.name_len +
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 1 + /* size of password length field */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 ppp_data->login.password_len));
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 * fill the packet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 ret_desc->next = (ULONG)NULL;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 pos = 0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 * Code field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 ret_desc->buffer[pos] = CODE_AUTH_REQ;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 * Identifier field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 ret_desc->buffer[pos] = ppp_data->pap.nari;/*lint !e415 (Warning -- access of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 * Length field (store the position)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 len_pos = pos;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 * authentication: peer-id and passwort
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 ret_desc->buffer[pos] = ppp_data->login.name_len;/*lint !e415 !e416 (Warning -- access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 for (i = 0; i < ppp_data->login.name_len; i++)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 ret_desc->buffer[pos] = ppp_data->login.name[i];/*lint !e661 !e662 (Warning -- Possible access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 ret_desc->buffer[pos] = ppp_data->login.password_len;/*lint !e661 !e662 (Warning -- Possible access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 for (i = 0; i < ppp_data->login.password_len; i++)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 ret_desc->buffer[pos] = ppp_data->login.password[i];/*lint !e661 !e662 (Warning -- Possible access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239 * insert packet length
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 ret_desc->len = pos;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242 ret_desc->buffer[len_pos] = (UBYTE)(pos >> 8);/*lint !e661 !e662 (Warning -- Possible access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243 len_pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 ret_desc->buffer[len_pos] = (UBYTE)(pos & 0x00ff);/*lint !e661 !e662 (Warning -- Possible access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247 * return the created packet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 *ptr_packet = ret_desc;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250 } /* pap_get_sar() */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
252
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
253
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
254 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
255 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
256 | Function : pap_get_saa
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
257 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
258 | Description : The function pap_get_saa() returns a PAP Authenticate Ack
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
259 | packet.
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
260 |
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
261 | Parameters : ptr_packet - returns the Authenticate Ack packet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
262 | THE MEMORY FOR THE PACKET WILL BE ALLOCATED BY
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
263 | THIS FUNCTION
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
264 |
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
265 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
266 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
267 GLOBAL void pap_get_saa (T_desc2** ptr_packet)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
268 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
269 T_desc2* packet;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
270 USHORT pos;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
271
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
272 TRACE_FUNCTION( "pap_get_saa" );
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
273
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
274 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
275 * Allocate the necessary size for the data descriptor. The size is
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
276 * calculated as follows:
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
277 * - take the size of a descriptor structure
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
278 * - subtract one because of the array buffer[1] to get the size of
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
279 * descriptor control information
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
280 * - add number of octets of descriptor data
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
281 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
282 MALLOC (packet, (USHORT)(sizeof(T_desc2) - 1 + PAP_AUTH_ACK_LENGTH));
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
283 packet->len = PAP_AUTH_ACK_LENGTH;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
284 packet->next = (ULONG)NULL;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
285 pos = 0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
286 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
287 * code field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
288 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
289 packet->buffer[pos] = CODE_AUTH_ACK;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
290 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
291 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
292 * identifier field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
293 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
294 packet->buffer[pos] = ppp_data->pap.nari;/*lint !e415 (Warning -- access of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
295 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
296 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
297 * length field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
298 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
299 packet->buffer[pos] = 0;/*lint !e415 !e416 (Warning -- access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
300 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
301 packet->buffer[pos] = PAP_AUTH_ACK_LENGTH;/*lint !e415 !e416 (Warning -- access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
302 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
303 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
304 * set Msg-Length field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
305 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
306 packet->buffer[pos] = 0;/*lint !e415 !e416 (Warning -- access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
307 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
308 * return the created packet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
309 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
310 *ptr_packet = packet;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
311 } /* pap_get_saa() */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
312
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
313
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
314
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
315 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
316 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
317 | Function : pap_rar
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
318 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
319 | Description : The function pap_rar() checks whether the given
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
320 | Authenticate Request packet is valid and if so it returns
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
321 | FORWARD_RARP and an Authentication Ack packet.
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
322 |
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
323 | Parameters : ptr_packet - Authenticate Request packet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
324 | forward - returns result of analysis
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
325 |
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
326 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
327 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
328 GLOBAL void pap_rar (T_desc2** ptr_packet, UBYTE* forward)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
329 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
330 T_desc2* packet;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
331 USHORT packet_len;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
332 USHORT pos;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
333
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
334 TRACE_FUNCTION( "pap_rar" );
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
335
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
336 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
337 * this packet can only reveiced in server mode
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
338 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
339 if(ppp_data->mode NEQ PPP_SERVER)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
340 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
341 *forward = FORWARD_DISCARD;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
342 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
343 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
344 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
345 * check correct length
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
346 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
347 packet = *ptr_packet;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
348 packet_len = packet->buffer[2];/*lint !e415 !e416 (Warning -- access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
349 packet_len = packet_len << 8;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
350 packet_len+= packet->buffer[3];/*lint !e415 !e416 (Warning -- access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
351 if((packet_len < 6) || (packet_len > packet->len))
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
352 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
353 *forward = FORWARD_DISCARD;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
354 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
355 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
356
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
357 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
358 * check consistence of length of packet and length of log on information
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
359 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
360 pos = 4;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
361 pos+= packet->buffer[pos];/*lint !e415 !e416 (Warning -- access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
362 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
363 pos+= packet->buffer[pos];
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
364 pos++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
365 if(pos > packet_len)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
366 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
367 *forward = FORWARD_DISCARD;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
368 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
369 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
370
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
371 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
372 * store authentication packet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
373 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
374 if(packet_len > PAP_AUTH_REQ_LENGTH_MAX)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
375 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
376 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
377 * create Authentication Nak
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
378 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
379 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
380 * change code field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
381 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
382 packet->buffer[0] = CODE_AUTH_NAK;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
383 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
384 * change length field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
385 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
386 packet->buffer[2] = 0;/*lint !e415 !e416 (Warning -- access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
387 packet->buffer[3] = PAP_AUTH_NAK_LENGTH;/*lint !e415 !e416 (Warning -- access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
388 packet->len = PAP_AUTH_NAK_LENGTH;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
389 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
390 * set Msg-Length field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
391 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
392 packet->buffer[4] = PAP_AUTH_NAK_TEXT_LENGTH;/*lint !e415 !e416 (Warning -- access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
393 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
394 * fill out Message
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
395 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
396 memcpy(&packet->buffer[5], PAP_AUTH_NAK_TEXT, PAP_AUTH_NAK_TEXT_LENGTH);/*lint !e419 !e416 (Warning -- creation of out-of-bounds pointer, Apparent data overrun)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
397 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
398 * set return values
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
399 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
400 *forward = FORWARD_RARN;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
401 *ptr_packet = packet;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
402 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
403 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
404 arb_discard_packet(ppp_data->pap.ar_packet);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
405 ppp_data->pap.ar_packet = packet;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
406 ppp_data->pap.nari = packet->buffer[1];/*lint !e415 (Warning -- access of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
407 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
408 * create Authenticate Ack packet and
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
409 * set return values
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
410 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
411 pap_get_saa(ptr_packet);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
412 *forward = FORWARD_RARP;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
413 } /* pap_rar */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
414
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
415
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
416
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
417 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
418 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
419 | Function : pap_raa
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
420 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
421 | Description : The function pap_raa() checks whether the given
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
422 | Authenticate Ack packet is valid and if so it returns
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
423 | FORWARD_RAA.
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
424 |
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
425 | Parameters : packet - Authenticate Ack packet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
426 | forward - returns result of analysis
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
427 |
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
428 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
429 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
430 GLOBAL void pap_raa (T_desc2* packet, UBYTE* forward)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
431 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
432 USHORT packet_len;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
433
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
434 TRACE_FUNCTION( "pap_raa" );
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
435
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
436 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
437 * this packet can only reveiced in client mode
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
438 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
439 if(ppp_data->mode NEQ PPP_CLIENT)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
440 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
441 *forward = FORWARD_DISCARD;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
442 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
443 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
444 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
445 * check correct length
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
446 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
447 packet_len = packet->buffer[2];/*lint !e415 !e416 (Warning -- access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
448 packet_len = packet_len << 8;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
449 packet_len+= packet->buffer[3];/*lint !e415 !e416 (Warning -- access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
450 if((packet_len < 5) || (packet_len > packet->len))
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
451 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
452 *forward = FORWARD_DISCARD;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
453 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
454 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
455
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
456 if(packet->buffer[1] NEQ ppp_data->pap.nari)/*lint !e415 (Warning -- access of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
457 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
458 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
459 * invalid packet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
460 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
461 *forward = FORWARD_DISCARD;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
462 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
463 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
464 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
465 * acceptable packet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
466 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
467 arb_discard_packet(packet);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
468 ppp_data->pap.nari++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
469 *forward = FORWARD_RAA;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
470 } /* pap_raa */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
471
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
472
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
473
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
474 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
475 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
476 | Function : pap_ran
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
477 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
478 | Description : The function pap_ran() checks whether the given
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
479 | Authenticate Nak packet is valid and if so it returns
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
480 | FORWARD_RAN.
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
481 |
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
482 | Parameters : packet - Authenticate Nak packet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
483 | forward - returns result of analysis
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
484 |
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
485 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
486 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
487 GLOBAL void pap_ran (T_desc2* packet, UBYTE* forward)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
488 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
489 USHORT packet_len;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
490
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
491 TRACE_FUNCTION( "pap_ran" );
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
492
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
493 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
494 * this packet can only reveiced in client mode
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
495 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
496 if(ppp_data->mode NEQ PPP_CLIENT)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
497 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
498 *forward = FORWARD_DISCARD;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
499 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
500 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
501 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
502 * check correct length
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
503 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
504 packet_len = packet->buffer[2];/*lint !e415 !e416 (Warning -- access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
505 packet_len = packet_len << 8;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
506 packet_len+= packet->buffer[3];/*lint !e415 !e416 (Warning -- access/creation of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
507 if((packet_len < 5) || (packet_len > packet->len))
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
508 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
509 *forward = FORWARD_DISCARD;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
510 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
511 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
512
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
513 if(packet->buffer[1] NEQ ppp_data->pap.nari)/*lint !e415 (Warning -- access of out-of-bounds pointer)*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
514 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
515 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
516 * invalid packet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
517 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
518 *forward = FORWARD_DISCARD;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
519 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
520 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
521 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
522 * acceptable packet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
523 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
524 arb_discard_packet(packet);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
525 *forward = FORWARD_RAN;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
526 } /* pap_ran */