FreeCalypso > hg > themwi-system-sw

annotate utils/sip-rx-test.c @ 57:d61d0136f6a5

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sip-in INVITE processing: return "GSM service is offline" indication
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 08 Sep 2022 13:39:42 -0800
parents 5995660dcbac
children
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1 /*
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2 * This test program is the next level above sip-udp-dump: it binds
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3 * to UDP port 5060, waits for a packet to come in, and when a SIP
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4 * packet does arrive (call one of the numbers from BulkVS while this
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5 * test program is running, to make BulkVS send SIP INVITE), it does
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6 * two things with the captured packet:
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7 *
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8 * 1) The captured packet is written raw into one file named on the
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9 * command line;
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10 *
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11 * 2) The packet is parsed with parse_incoming_sip_msg(), and the
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12 * parsed structure is written out into the other file named on
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13 * the command line.
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14 *
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15 * This program is intended to serve as a unit test for the parsing
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16 * function.
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17 */
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18
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19 #include <sys/types.h>
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20 #include <sys/file.h>
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21 #include <sys/socket.h>
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22 #include <netinet/in.h>
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23 #include <arpa/inet.h>
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24 #include <stdio.h>
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25 #include <stdlib.h>
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26 #include <string.h>
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27 #include <strings.h>
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28 #include <unistd.h>
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29 #include "../libsip/parse.h"
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30
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31 static int sock;
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32 static struct sockaddr_in sin;
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33 static struct sip_pkt_rx pkt;
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34
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35 static void
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36 save_raw_packet(filename)
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37 char *filename;
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38 {
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39 int fd;
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40
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41 fd = open(filename, O_WRONLY|O_CREAT|O_TRUNC, 0666);
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42 if (fd < 0) {
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43 perror(filename);
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44 exit(1);
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45 }
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46 write(fd, pkt.pkt_buffer, pkt.pkt_length);
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47 close(fd);
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48 }
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49
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50 static void
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51 write_parse_output(filename)
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52 char *filename;
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53 {
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54 FILE *of;
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55 unsigned n;
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56
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57 of = fopen(filename, "w");
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58 if (!of) {
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59 perror(filename);
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60 exit(1);
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61 }
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62 switch (pkt.parse_msgtype) {
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63 case SIP_MSG_TYPE_REQ:
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64 fprintf(of, "Message is a request\n");
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65 fprintf(of, "Method: %s\n", pkt.req_method);
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66 fprintf(of, "Request-URI: %s\n", pkt.req_uri);
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67 break;
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68 case SIP_MSG_TYPE_RESP:
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69 fprintf(of, "Message is a response\n");
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70 fprintf(of, "Status code: %u\n", pkt.status_code);
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71 fprintf(of, "Status string: %s\n", pkt.status_str);
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72 break;
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73 default:
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74 fprintf(of, "Parsed returned unknown message type %d\n",
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75 pkt.parse_msgtype);
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76 }
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77 fprintf(of, "Number of header fields: %u\n", pkt.num_hdr_fields);
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78 for (n = 0; n < pkt.num_hdr_fields; n++) {
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79 fprintf(of, "Header field %u:\n", n);
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80 fprintf(of, " Field name: %s\n",
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81 pkt.hdr_fields[n].field_name);
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82 fprintf(of, " Field value: %s\n",
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83 pkt.hdr_fields[n].field_value);
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84 }
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85 fprintf(of, "Message body length: %u\n", pkt.msg_body_len);
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86 fclose(of);
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87 }
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88
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89 main(argc, argv)
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90 char **argv;
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91 {
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92 int rc;
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93 socklen_t addrlen;
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94
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95 if (argc != 3) {
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96 fprintf(stderr, "usage: %s raw-file parsed-file\n", argv[0]);
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97 exit(1);
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98 }
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99 sock = socket(AF_INET, SOCK_DGRAM, 0);
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100 if (sock < 0) {
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101 perror("socket");
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102 exit(1);
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103 }
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104 sin.sin_family = AF_INET;
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105 sin.sin_addr.s_addr = INADDR_ANY;
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106 sin.sin_port = htons(5060);
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107 rc = bind(sock, (struct sockaddr *) &sin, sizeof sin);
43
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108 if (rc < 0) {
42
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109 perror("bind");
43
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110 exit(1);
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111 }
42
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112 addrlen = sizeof sin;
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113 rc = recvfrom(sock, pkt.pkt_buffer, MAX_SIP_RX_PACKET, 0,
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114 (struct sockaddr *) &sin, &addrlen);
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115 if (rc < 0) {
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116 perror("recvfrom");
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117 exit(1);
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118 }
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119 pkt.pkt_length = rc;
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120 printf("Rx from %s:%u, %u bytes\n", inet_ntoa(sin.sin_addr),
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121 ntohs(sin.sin_port), pkt.pkt_length);
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122 save_raw_packet(argv[1]);
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123 rc = parse_incoming_sip_msg(&pkt);
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124 if (rc < 0) {
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125 printf("Parse error: %d\n", rc);
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126 exit(0);
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127 }
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128 write_parse_output(argv[2]);
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129 exit(0);
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130 }