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annotate mgw/dlcx.c @ 99:738be11ac432

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mgw internal code: simplify MDCX error handling
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 26 Sep 2022 13:42:46 -0800
parents f280328e7e2e
children f062c32a5116
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Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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Mychaela Falconia <falcon@freecalypso.org>
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2 * In this module we implement our DLCX operation.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <sys/socket.h>
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7 #include <netinet/in.h>
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8 #include <stdio.h>
38
020ba624bdd8 mgw source: #include <stdlib.h> in files using tmgw_ctrl.h
Mychaela Falconia <falcon@freecalypso.org>
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9 #include <stdint.h>
32
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10 #include <stdlib.h>
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11 #include <string.h>
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12 #include <strings.h>
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13 #include <syslog.h>
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14 #include <unistd.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 #include "struct.h"
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18 #include "select.h"
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19
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20 extern struct endpoint *find_ep_by_id();
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21
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22 static struct endpoint *delq;
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23
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24 static void
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25 put_on_delq(ep)
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26 struct endpoint *ep;
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27 {
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28 ep->next = delq;
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29 delq = ep;
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30 }
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31
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32 void
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33 process_dlcx(conn, req, resp)
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34 struct ctrl_conn *conn;
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35 struct tmgw_ctrl_req *req;
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36 struct tmgw_ctrl_resp *resp;
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37 {
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38 struct endpoint *ep, **epp;
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39
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40 for (epp = &conn->endp_list; ep = *epp; epp = &ep->next)
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41 if (ep->ep_id == req->ep_id)
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42 break;
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43 if (!ep) {
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44 resp->res = TMGW_RESP_ERR_PROT;
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45 return;
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46 }
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47 syslog(LOG_INFO, "DLCX endpoint id %u", ep->ep_id);
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48 *epp = ep->next;
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49 put_on_delq(ep);
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50 resp->res = TMGW_RESP_OK;
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51 }
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52
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53 void
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54 dlcx_all_on_conn(conn)
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55 struct ctrl_conn *conn;
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56 {
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57 struct endpoint *ep, *np;
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58
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59 for (ep = conn->endp_list; ep; ep = np) {
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60 np = ep->next;
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61 put_on_delq(ep);
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62 }
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63 }
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64
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65 void
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66 free_rtp_end(roe)
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67 struct rtp_one_end *roe;
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68 {
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69 close(roe->rtp_fd);
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70 close(roe->rtcp_fd);
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71 FD_CLR(roe->rtp_fd, &select_for_read);
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72 FD_CLR(roe->rtcp_fd, &select_for_read);
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73 }
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74
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75 void
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76 free_deleted_endpoints()
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77 {
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78 struct endpoint *ep, *np;
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79
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80 for (ep = delq; ep; ep = np) {
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81 np = ep->next;
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82 if (ep->ep_type & TMGW_EP_HAS_GSM_SOCK)
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83 free_rtp_end(&ep->rtp_gsm);
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84 if (ep->ep_type & TMGW_EP_HAS_PSTN_SOCK)
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85 free_rtp_end(&ep->rtp_pstn);
95
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86 if (ep->gsm_encoder_state)
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87 free(ep->gsm_encoder_state);
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88 if (ep->gsm_decoder_state)
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89 free(ep->gsm_decoder_state);
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90 free(ep);
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91 }
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92 delq = 0;
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93 }