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comparison mgw/ctrl_prot.c @ 32:b3f74df7b808

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beginning of themwi-mgw
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 09 Jul 2022 22:51:44 -0800
parents
children 7dae2bae56a1
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31:08d7794cdd0a 32:b3f74df7b808
1 /*
2 * In this module we implement our control socket protocol.
3 */
4
5 #include <sys/types.h>
6 #include <sys/socket.h>
7 #include <netinet/in.h>
8 #include <stdio.h>
9 #include <stdlib.h>
10 #include <string.h>
11 #include <strings.h>
12 #include <syslog.h>
13 #include <unistd.h>
14 #include "../include/tmgw_ctrl.h"
15 #include "struct.h"
16 #include "select.h"
17
18 struct endpoint *
19 find_ep_by_id(conn, id)
20 struct ctrl_conn *conn;
21 unsigned id;
22 {
23 struct endpoint *ep;
24
25 for (ep = conn->endp_list; ep; ep = ep->next)
26 if (ep->ep_id == id)
27 return ep;
28 return 0;
29 }
30
31 void
32 ctrl_message_handler(fd, conn)
33 struct ctrl_conn *conn;
34 {
35 struct tmgw_ctrl_req req;
36 struct tmgw_ctrl_resp resp;
37 int rc;
38
39 rc = recv(fd, &req, sizeof req, 0);
40 if (rc < sizeof req) {
41 syslog(LOG_INFO, "ctrl connection closing %s active endpoints",
42 conn->endp_list ? "with" : "without");
43 close(fd);
44 FD_CLR(fd, &select_for_read);
45 dlcx_all_on_conn(conn);
46 free(conn);
47 return;
48 }
49 bzero(&resp, sizeof resp);
50 resp.transact_ref = req.transact_ref;
51 switch (req.opcode) {
52 case TMGW_CTRL_OP_CRCX:
53 process_crcx(conn, &req, &resp);
54 break;
55 case TMGW_CTRL_OP_MDCX:
56 process_mdcx(conn, &req, &resp);
57 break;
58 case TMGW_CTRL_OP_DLCX:
59 process_dlcx(conn, &req, &resp);
60 break;
61 default:
62 resp.res = TMGW_RESP_ERR_PROT;
63 }
64 send(fd, &resp, sizeof resp, 0);
65 }