FreeCalypso > hg > themwi-system-sw
annotate sip-manual-out/dummy_rtp.c @ 112:6aa63cf4620a
sip-in call clearing: select timeout implemented
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 28 Sep 2022 18:59:55 -0800 |
parents | d74b545a3c2a |
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1 /* |
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2 * In this module we implement the code that connects to themwi-mgw |
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3 * and obtains a dummy PSTN-side RTP endpoint. |
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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 <sys/socket.h> |
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8 #include <sys/un.h> |
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9 #include <netinet/in.h> |
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10 #include <stdio.h> |
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11 #include <stdint.h> |
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12 #include <stdlib.h> |
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13 #include <string.h> |
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14 #include <strings.h> |
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15 #include "../include/tmgw_ctrl.h" |
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16 #include "../include/tmgw_const.h" |
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17 |
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18 struct sockaddr_in dummy_rtp_endp; |
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19 |
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20 static char tmgw_socket_pathname[] = "/var/gsm/tmgw_socket"; |
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21 |
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22 obtain_dummy_rtp() |
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23 { |
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24 struct sockaddr_un sa; |
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25 unsigned sa_len; |
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26 int fd, rc; |
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27 struct tmgw_ctrl_req req; |
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28 struct tmgw_ctrl_resp resp; |
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29 |
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30 fd = socket(AF_UNIX, SOCK_SEQPACKET, 0); |
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31 if (fd < 0) { |
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32 perror("socket(AF_UNIX, SOCK_SEQPACKET, 0)"); |
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33 exit(1); |
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34 } |
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35 fill_sockaddr_un(tmgw_socket_pathname, &sa, &sa_len); |
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36 rc = connect(fd, (struct sockaddr *) &sa, sa_len); |
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37 if (rc < 0) { |
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38 perror(tmgw_socket_pathname); |
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39 exit(1); |
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40 } |
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41 bzero(&req, sizeof req); |
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42 req.opcode = TMGW_CTRL_OP_CRCX; |
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43 req.ep_id = TMGW_EP_TYPE_DUMMY_PSTN; |
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44 rc = send(fd, &req, sizeof req, 0); |
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45 if (rc < 0) { |
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46 perror("send to TMGW socket"); |
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47 exit(1); |
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48 } |
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49 rc = recv(fd, &resp, sizeof resp, 0); |
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50 if (rc < 0) { |
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51 perror("recv from TMGW socket"); |
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52 exit(1); |
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53 } |
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54 if (rc != sizeof resp) { |
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55 fprintf(stderr, |
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56 "error: response packet from TMGW has wrong length (%d bytes)\n", |
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57 rc); |
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58 exit(1); |
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59 } |
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60 if (resp.res != TMGW_RESP_OK) { |
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61 fprintf(stderr, "TMGW CRCX returned error %u\n", resp.res); |
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62 exit(1); |
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63 } |
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64 bcopy(&resp.pstn_addr, &dummy_rtp_endp, sizeof(struct sockaddr_in)); |
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65 return(0); |
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66 } |