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annotate smpp-send/build_pdu.c @ 270:6f28a4377a99

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doc/Local-short-numbers: first draft written
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 26 Nov 2023 17:08:10 -0800
parents 243ed87880a1
children
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1 /*
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2 * The function in this module constructs SMPP submit_sm PDUs
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3 * from input messages.
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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 "error.h"
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12
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13 extern char src_addr[21], dest_addr[21];
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14 extern u_char src_ton, src_npi, dest_ton, dest_npi;
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15 extern u_char esm_class, pid_byte, dcs_byte;
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16 extern u_char prio_flag, reg_deliv, replace_flag;
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17
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18 extern int input_lineno;
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19 extern char *trx_socket;
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20
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21 void
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22 build_submit_sm(payload, payload_len, udhi)
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23 u_char *payload;
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24 unsigned payload_len;
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25 {
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26 u_char pdu[512], *dp, esm_class_inst;
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27 unsigned pdu_len, slen;
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28
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29 /* sanity checks first */
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30 if (!src_addr[0]) {
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31 fprintf(stderr, ERR_PREFIX "src address is not set\n",
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32 input_lineno);
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33 exit(1);
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34 }
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35 if (!dest_addr[0]) {
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36 fprintf(stderr, ERR_PREFIX "dest address is not set\n",
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37 input_lineno);
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38 exit(1);
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39 }
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40 /* proceed */
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41 dp = pdu + 4; /* length will be filled last */
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42 /* command_id */
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43 *dp++ = 0;
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44 *dp++ = 0;
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45 *dp++ = 0;
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46 *dp++ = 0x04; /* submit_sm */
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47 /* empty command_status */
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48 *dp++ = 0;
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49 *dp++ = 0;
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50 *dp++ = 0;
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51 *dp++ = 0;
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52 /* dummy sequence_number (will be overwritten by smpp-trx-sa) */
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53 *dp++ = 0;
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54 *dp++ = 0;
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55 *dp++ = 0;
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56 *dp++ = 0;
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57 /* mandatory params */
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58 *dp++ = 0; /* empty service_type */
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59 *dp++ = src_ton;
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60 *dp++ = src_npi;
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61 slen = strlen(src_addr) + 1;
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62 bcopy(src_addr, dp, slen);
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63 dp += slen;
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64 *dp++ = dest_ton;
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65 *dp++ = dest_npi;
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66 slen = strlen(dest_addr) + 1;
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67 bcopy(dest_addr, dp, slen);
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68 dp += slen;
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69 esm_class_inst = esm_class;
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70 if (udhi)
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71 esm_class_inst |= 0x40;
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72 *dp++ = esm_class_inst;
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73 *dp++ = pid_byte;
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74 *dp++ = prio_flag;
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75 *dp++ = 0; /* empty schedule_delivery_time */
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76 *dp++ = 0; /* empty validity_period */
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77 *dp++ = reg_deliv;
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78 *dp++ = replace_flag;
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79 *dp++ = dcs_byte;
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80 *dp++ = 0; /* no canned messages */
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81 *dp++ = payload_len;
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82 bcopy(payload, dp, payload_len);
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83 dp += payload_len;
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84 pdu_len = dp - pdu;
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85 pdu[0] = pdu_len >> 24;
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86 pdu[1] = pdu_len >> 16;
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87 pdu[2] = pdu_len >> 8;
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88 pdu[3] = pdu_len;
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89 /* local datagram socket output to be implemented */
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90 if (trx_socket)
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91 send_pdu_via_socket(pdu, pdu_len);
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92 else
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93 hex_dump_output(pdu, pdu_len);
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94 }