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annotate mgw/ctrl_prot.c @ 97:9aed16c30622

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mgw p2g: set M bit when restarting forwarding after no-forward
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 25 Sep 2022 20:05:02 -0800
parents 020ba624bdd8
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 control socket protocol.
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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>
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020ba624bdd8 mgw source: #include <stdlib.h> in files using tmgw_ctrl.h
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9 #include <stdint.h>
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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 "struct.h"
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17 #include "select.h"
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18
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19 struct endpoint *
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20 find_ep_by_id(conn, id)
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21 struct ctrl_conn *conn;
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22 unsigned id;
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Mychaela Falconia <falcon@freecalypso.org>
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23 {
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24 struct endpoint *ep;
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25
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26 for (ep = conn->endp_list; ep; ep = ep->next)
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Mychaela Falconia <falcon@freecalypso.org>
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27 if (ep->ep_id == id)
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Mychaela Falconia <falcon@freecalypso.org>
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28 return ep;
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29 return 0;
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30 }
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31
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32 void
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33 ctrl_message_handler(fd, conn)
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Mychaela Falconia <falcon@freecalypso.org>
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34 struct ctrl_conn *conn;
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35 {
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36 struct tmgw_ctrl_req req;
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37 struct tmgw_ctrl_resp resp;
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38 int rc;
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39
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40 rc = recv(fd, &req, sizeof req, 0);
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41 if (rc < sizeof req) {
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Mychaela Falconia <falcon@freecalypso.org>
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42 syslog(LOG_INFO, "ctrl connection closing %s active endpoints",
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Mychaela Falconia <falcon@freecalypso.org>
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43 conn->endp_list ? "with" : "without");
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44 close(fd);
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45 FD_CLR(fd, &select_for_read);
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46 dlcx_all_on_conn(conn);
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47 free(conn);
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48 return;
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49 }
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Mychaela Falconia <falcon@freecalypso.org>
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50 bzero(&resp, sizeof resp);
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Mychaela Falconia <falcon@freecalypso.org>
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51 resp.transact_ref = req.transact_ref;
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Mychaela Falconia <falcon@freecalypso.org>
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52 switch (req.opcode) {
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Mychaela Falconia <falcon@freecalypso.org>
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53 case TMGW_CTRL_OP_CRCX:
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54 process_crcx(conn, &req, &resp);
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55 break;
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56 case TMGW_CTRL_OP_MDCX:
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57 process_mdcx(conn, &req, &resp);
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58 break;
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59 case TMGW_CTRL_OP_DLCX:
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60 process_dlcx(conn, &req, &resp);
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61 break;
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62 default:
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7dae2bae56a1 themwi-mgw: implement MDCX parameter validation
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63 resp.res = TMGW_RESP_ERR_OPCODE;
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64 }
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65 send(fd, &resp, sizeof resp, 0);
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66 }