FreeCalypso > hg > themwi-system-sw

annotate smpp-trx-sa/pdu_out.c @ 262:f1c024b2b835

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smpp-trx-sa/log.c: additional cleanup
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 11 Oct 2023 21:21:34 -0800
parents 9d6e8d99d2b1
children
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222
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1 /*
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2 * This module implements all functions related to sending outgoing PDUs
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3 * to the SMPP server.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include <unistd.h>
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12
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13 extern int tcpsock;
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14
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15 static unsigned req_out_seq = 1;
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16
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17 static void
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18 pdu_to_tcp(pdu, pdulen)
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19 u_char *pdu;
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20 unsigned pdulen;
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21 {
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22 int cc;
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23
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24 cc = write(tcpsock, pdu, pdulen);
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25 if (cc != pdulen) {
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26 perror("write to TCP socket");
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27 log_fatal_error("error writing to TCP socket");
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28 exit(1);
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29 }
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30 }
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31
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32 void
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33 send_bind_req(system_id, password)
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34 char *system_id, *password;
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35 {
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36 u_char bind_req[64], *dp;
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37 unsigned bind_req_len, slen;
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38
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39 dp = bind_req + 4; /* length will be filled last */
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40 /* command_id */
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41 *dp++ = 0;
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42 *dp++ = 0;
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43 *dp++ = 0;
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44 *dp++ = 0x09; /* bind_transceiver */
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45 /* empty command_status */
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46 *dp++ = 0;
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47 *dp++ = 0;
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48 *dp++ = 0;
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49 *dp++ = 0;
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50 /* sequence_number */
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51 *dp++ = 0;
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52 *dp++ = 0;
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53 *dp++ = 0;
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54 *dp++ = 1;
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55 /* system_id */
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56 slen = strlen(system_id) + 1;
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57 bcopy(system_id, dp, slen);
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58 dp += slen;
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59 /* password */
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60 slen = strlen(password) + 1;
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61 bcopy(password, dp, slen);
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62 dp += slen;
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63 /* system_type */
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64 strcpy(dp, "SMPP");
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65 dp += 5;
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66 /* interface_version */
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67 *dp++ = 0x34;
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68 /* addr_ton */
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69 *dp++ = 0;
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70 /* addr_npi */
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71 *dp++ = 0;
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72 /* address_range */
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73 *dp++ = 0;
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74 bind_req_len = dp - bind_req;
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75 bind_req[0] = bind_req_len >> 24;
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76 bind_req[1] = bind_req_len >> 16;
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77 bind_req[2] = bind_req_len >> 8;
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78 bind_req[3] = bind_req_len;
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79 pdu_to_tcp(bind_req, bind_req_len);
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80 log_sent_pdu(bind_req, bind_req_len);
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81 }
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82
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83 void
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84 send_enq_link_resp(rx_hdr)
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85 u_char *rx_hdr;
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86 {
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87 u_char resp[16];
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88
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89 /* command_length */
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90 resp[0] = 0;
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91 resp[1] = 0;
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92 resp[2] = 0;
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93 resp[3] = 16;
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94 /* command_id */
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95 resp[4] = rx_hdr[4] | 0x80;
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96 resp[5] = rx_hdr[5];
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97 resp[6] = rx_hdr[6];
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98 resp[7] = rx_hdr[7];
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99 /* command_status */
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100 resp[8] = 0;
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101 resp[9] = 0;
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102 resp[10] = 0;
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103 resp[11] = 0;
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104 /* sequence_number */
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105 resp[12] = rx_hdr[12];
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106 resp[13] = rx_hdr[13];
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107 resp[14] = rx_hdr[14];
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108 resp[15] = rx_hdr[15];
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109 /* good to go */
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110 pdu_to_tcp(resp, 16);
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111 }
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112
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113 void
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114 send_message_resp(rx_hdr)
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115 u_char *rx_hdr;
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116 {
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117 u_char resp[17];
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118
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119 /* command_length */
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120 resp[0] = 0;
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121 resp[1] = 0;
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122 resp[2] = 0;
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123 resp[3] = 17;
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124 /* command_id */
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125 resp[4] = rx_hdr[4] | 0x80;
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126 resp[5] = rx_hdr[5];
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127 resp[6] = rx_hdr[6];
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128 resp[7] = rx_hdr[7];
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129 /* command_status */
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130 resp[8] = 0;
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131 resp[9] = 0;
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132 resp[10] = 0;
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133 resp[11] = 0;
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134 /* sequence_number */
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135 resp[12] = rx_hdr[12];
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136 resp[13] = rx_hdr[13];
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137 resp[14] = rx_hdr[14];
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138 resp[15] = rx_hdr[15];
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139 /* empty message_id */
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140 resp[16] = 0;
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141 /* good to go */
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142 pdu_to_tcp(resp, 17);
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143 log_sent_pdu(resp, 17);
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144 }
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145
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146 void
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147 send_pdu_from_localsock(pdu, pdulen)
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148 u_char *pdu;
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149 unsigned pdulen;
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150 {
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151 /* assign incrementing sequence number */
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152 req_out_seq++;
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153 if (req_out_seq > 0x7FFFFFFF)
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154 req_out_seq = 1;
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155 pdu[12] = req_out_seq >> 24;
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156 pdu[13] = req_out_seq >> 16;
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157 pdu[14] = req_out_seq >> 8;
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158 pdu[15] = req_out_seq;
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159 /* good to go */
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160 pdu_to_tcp(pdu, pdulen);
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161 log_sent_pdu(pdu, pdulen);
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162 }