FreeCalypso > hg > themwi-system-sw
comparison mgw/ctrl_prot.c @ 32:b3f74df7b808
beginning of themwi-mgw
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 09 Jul 2022 22:51:44 -0800 |
parents | |
children | 7dae2bae56a1 |
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31:08d7794cdd0a | 32:b3f74df7b808 |
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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 } |