annotate src/g23m-fad/udp/udp_kerf.c @ 640:16eb1b9640dc

target gtm900 renamed to gtm900mgc2 This change reflects the fact that the build target in question supports MGC2GSMT hardware only, and will NOT work on other hw that confusing bears the same end user name of GTM900, neither the LoCosto-based GTM900-C nor the Calypso-based MG01GSMT that has a different and incompatible RFFE. If we ever get our hands on a piece of MG01GSMT hw and add support for it, that other target will be named gtm900mg01.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 31 Jan 2020 00:46:07 +0000
parents 90eb61ecd093
children
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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 defines the functions for processing
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18 | of incomming primitives for the component
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19 | Internet Protocol of the mobile station
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20 +----------------------------------------------------------------------------
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21 */
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22
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23 #define ENTITY_UDP
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24
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25 #include <string.h>
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26 #include "typedefs.h"
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27 #include "pcm.h"
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28 #include "pconst.cdg"
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29 #include "mconst.cdg"
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30 #include "message.h"
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31 #include "ccdapi.h"
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32 #include "vsi.h"
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33 #include "macdef.h" /* to get PFREE_DESC2 */
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34 #include "custom.h"
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35 #include "gsm.h"
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36 #include "prim.h"
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37 #include "cus_udp.h"
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38 #include "cnf_udp.h"
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39 #include "mon_udp.h"
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40 #include "pei.h"
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41 #include "tok.h"
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42 #include "dti.h" /* to get dti lib */
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43 #include "udp.h"
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44 #include "ip_udp.h"
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45
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46 /*
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47 +--------------------------------------------------------------------+
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48 | PROJECT : WAP MODULE : udp_kerf.c |
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49 | STATE : code ROUTINE : init_udp |
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50 +--------------------------------------------------------------------+
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51
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52 PURPOSE : Init the global variables of UDP
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53 */
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54
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55 void init_udp (void)
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56 {
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57 T_HILA * p_ul;
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58 T_LOLA * p_dl;
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59 T_KER * p_ker = & udp_data->ker;
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60
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61 /* Set global variables for every entity */
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62
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63 INIT_STATE (HILA, DOWN);
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64 INIT_STATE (LOLA, DOWN);
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65
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66 p_ul = & udp_data->hila;
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67 *p_ul->entity_name = 0;
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68 p_ul->dti_state = DTI_CLOSED;
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69 p_ul->dti_data_req = NULL;
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70
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71 p_dl = & udp_data->lola;
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72 *p_dl->entity_name = 0;
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73 p_dl->dti_state = DTI_CLOSED;
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74 p_dl->dti_data_ind = NULL;
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75 p_dl->drop_packet = FALSE;
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76 p_dl->state_err = STATE_DL_NO_ERROR;
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77 p_dl->src_addr = NO_ADDR;
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78 p_dl->dst_addr = NO_ADDR;
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79 p_dl->dst_port = NO_PORT;
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80 p_dl->src_port = NO_PORT;
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81
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82 /* Downlink and uplink for one entity */
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83
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84 p_ker->send_icmp = FALSE;
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85 p_ker->port_state = PORT_DOWN;
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86 p_ker->dti_data_req_icmp = NULL;
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87
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88 p_ker->dst_addr = NO_ADDR;
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89 p_ker->src_addr = NO_ADDR;
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90 p_ker->src_port = NO_PORT;
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91 p_ker->dst_port = NO_PORT;
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92 }
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93
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94 /*
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95 +--------------------------------------------------------------------+
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96 | PROJECT : WAP MODULE : udp_kerf.c |
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97 | STATE : code ROUTINE : udp_build_packet |
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98 +--------------------------------------------------------------------+
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99
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100 PURPOSE : Build UDP and ICMP packets to send
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101 */
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102
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103 void udp_build_packet (BOOL hila, UBYTE to_do)
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104 {
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105 T_KER * p_ker = & udp_data->ker;
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106
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107 if (hila) /* Build the packets for higher layer */
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108 {
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109 switch (to_do)
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110 {
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111 case B_NORMAL_PACKET:
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112 {
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113 T_desc_list2 * desc_list = & udp_data->hila.dti_data_req->desc_list2;
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114 T_desc2 * desc = (T_desc2 *) desc_list->first;
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115 USHORT udp_payload_len = desc_list->list_len;
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116
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diff changeset
117 if (desc == NULL)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
118 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 TRACE_ERROR ("Hila's desc == NULL in udp_build_packet().");
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
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 else
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 /* Make a new desc for the IP and UDP packet header */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 USHORT headroom = LEN_IP_HEADER_B + LEN_UDP_HEADER_B;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 UBYTE * ip_header;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 T_desc2 * desc_new = M_ALLOC (offsetof (T_desc2, buffer) + headroom);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 if (desc_new == NULL)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 TRACE_ERROR ("Not enough memory in udp_build_packet().");
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 desc_new->next = (ULONG) desc;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 desc_new->offset = 0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 desc_new->len = headroom;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 desc_new->size = headroom;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 ip_header = desc_new->buffer;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 register unsigned i;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 for (i=0; i < headroom; i++)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 ip_header[i] = '\0';/*lint !e661 !e662 (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
144 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 /* Put the desc at the first place of the descs and
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 * build the UDP header */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 desc_list->first = (ULONG) desc_new;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 desc_list->list_len = (USHORT) (desc_new->len + desc_list->list_len);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 /* Fill in IP header information */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 SET_IP_VERSION (ip_header, IP_VERSION);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 SET_IP_HEADER_LEN (ip_header, MIN_HEADER_LEN);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 /*lint -e{661, 662} (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
157 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 SET_IP_TOTAL_LEN (ip_header, desc_list->list_len);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 SET_IP_PROT (ip_header, UDP_PROT);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 SET_IP_SOURCE_ADDR (ip_header, p_ker->src_addr);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 SET_IP_DEST_ADDR (ip_header, p_ker->dst_addr);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 SET_UDP_SRC_PORT (ip_header, p_ker->src_port);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 SET_UDP_DST_PORT (ip_header, p_ker->dst_port);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 SET_UDP_LEN (ip_header, udp_payload_len + LEN_UDP_HEADER_B);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 UBYTE pseudo_header [LEN_PSEUDO_HEADER_B];
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 ULONG overlay;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 USHORT chksum;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
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 /* Build the pseudoheader for to calculate the chksum */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 SET_UDP_PSEUDO_H_SRC_ADDR (pseudo_header, p_ker->src_addr);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 SET_UDP_PSEUDO_H_DEST_ADDR (pseudo_header, p_ker->dst_addr);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 SET_UDP_PSEUDO_H_ZERO (pseudo_header, 0);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 SET_UDP_PSEUDO_H_PROT (pseudo_header, UDP_PROT);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 SET_UDP_PSEUDO_H_LEN (pseudo_header, udp_payload_len + LEN_UDP_HEADER_B);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 /* Calculate the checksum for the pseudoheader */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 overlay = partial_checksum (pseudo_header, LEN_PSEUDO_HEADER_B);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 /* Calculate for the UDP header and the data */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 RESET_UDP_CHKSUM (ip_header, LEN_IP_HEADER_B);/*lint !e661 !e662 (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
185 chksum = desc_checksum (desc_list, LEN_IP_HEADER_B, overlay);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 SET_UDP_CHKSUM (ip_header, LEN_IP_HEADER_B, chksum);/*lint !e661 !e662 (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
187 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 }
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 break;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 default:
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 break;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 else /* Build the packets for lower layer */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 T_LOLA * p_dl = & udp_data->lola;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 T_desc_list2 * desc_list = & p_dl->dti_data_ind->desc_list2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 T_desc2 * desc = (T_desc2 *) desc_list->first;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 if (desc == NULL)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 TRACE_ERROR ("Lola's desc == NULL in udp_build_packet().");
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 if (desc->len < LEN_IP_HEADER_B)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 TRACE_ERROR (
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 "Lola's desc->len < LEN_IP_HEADER_B "
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 "in udp_build_packet()."
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 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 if (GET_IP_HEADER_LEN_B (desc->buffer + desc->offset) < LEN_IP_HEADER_B)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 TRACE_ERROR (
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 "Lola's GET_IP_HEADER_LEN_B() < LEN_IP_HEADER_B "
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 "in udp_build_packet()."
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 );
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 }
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 switch (to_do)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 case B_NORMAL_PACKET:
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 /* Build a new desc for IP addresses and port numbers */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 T_desc2 * addr = M_ALLOC (
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 offsetof (T_desc2, buffer) + sizeof (T_SRC_DES)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 );
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 if (addr == NULL) {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 TRACE_ERROR ("Not enough memory in udp_build_packet().");
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 }
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 addr->next = (ULONG) desc;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239 addr->offset = 0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 addr->len = sizeof (T_SRC_DES);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 addr->size = sizeof (T_SRC_DES);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243 memcpy (((T_SRC_DES *) addr->buffer)->src_ip, & p_dl->src_addr, 4);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 memcpy (((T_SRC_DES *) addr->buffer)->des_ip, & p_dl->dst_addr, 4);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245 memcpy (((T_SRC_DES *) addr->buffer)->src_port, & p_dl->src_port, 2);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 memcpy (((T_SRC_DES *) addr->buffer)->des_port, & p_dl->dst_port, 2);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248 desc_list->first = (ULONG) addr;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 desc_list->list_len = (USHORT) (addr->len + desc_list->list_len);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 /* Filter out the given IP and UDP header */
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 register unsigned headroom =
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
254 GET_IP_HEADER_LEN_B (desc->buffer + desc->offset) + LEN_UDP_HEADER_B;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
255 if (desc->len < headroom)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
256 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
257 TRACE_ERROR ("Lola's IP packet is short in udp_build_packet().");
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
258 return;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
259 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
260 memmove (
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
261 desc->buffer + desc->offset,
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
262 desc->buffer + desc->offset + headroom,
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
263 desc->len - headroom
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 desc->len = (USHORT) (desc->len - headroom);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
266 desc_list->list_len = (USHORT) (desc_list->list_len - headroom);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
267 }
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 break;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
270
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
271 case B_NO_DEST_PORT:
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
272 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
273 /* We build the whole ICMP packet */
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 PPASS (p_dl->dti_data_ind, data_req, DTI2_DATA_REQ);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
276
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
277 desc_list = & data_req->desc_list2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
278 desc = (T_desc2 *) desc_list->first;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
279
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
280 build_icmp_with_payload (
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
281 data_req,
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
282 IDENTITY_0,
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
283 STANDARD_TTL,
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
284 GET_IP_DEST_ADDR (desc->buffer + desc->offset),
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
285 ICMP_TYP_DEST_URECHBL,
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
286 ICMP_CODE_NO_PORT
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
287 );
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 p_ker->dti_data_req_icmp = data_req;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
290 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
291 break;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
292
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
293 default:
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
294 break;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
295 }
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 }
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 /*-------------------------------------------------------------------------*/
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
300