FreeCalypso > hg > themwi-system-sw
view rtp-mgr/alloc.c @ 211:fbfa72b114e8
sip-manual-out: prep for making PCM fill octet changeable
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 21 May 2023 15:33:00 -0800 |
parents | b79d6334f543 |
children |
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/* * In this module we implement our RTP port allocation operation. */ #include <sys/types.h> #include <sys/socket.h> #include <sys/time.h> #include <netinet/in.h> #include <arpa/inet.h> #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include <syslog.h> #include <unistd.h> #include "../include/tmgw_const.h" #include "struct.h" #include "select.h" get_rtp_port_pair(roe, brc) struct rtp_one_end *roe; struct bind_range_cfg *brc; { struct sockaddr_in sin; unsigned tries, rtp_port; int rc; sin.sin_family = AF_INET; sin.sin_addr = brc->bind_ip; for (tries = brc->port_tries; tries; tries--) { rtp_port = brc->port_next; brc->port_next += 2; if (brc->port_next >= brc->port_range_end) brc->port_next = brc->port_range_start; sin.sin_port = htons(rtp_port); roe->rtp_fd = socket(AF_INET, SOCK_DGRAM, 0); if (roe->rtp_fd < 0) { syslog(LOG_CRIT, "socket(AF_INET, SOCK_DGRAM, 0): %m"); return(-1); } rc = bind(roe->rtp_fd, (struct sockaddr *) &sin, sizeof sin); if (rc < 0) { close(roe->rtp_fd); continue; } bcopy(&sin, &roe->bound_addr, sizeof(struct sockaddr_in)); sin.sin_port = htons(rtp_port+1); roe->rtcp_fd = socket(AF_INET, SOCK_DGRAM, 0); if (roe->rtcp_fd < 0) { syslog(LOG_CRIT, "socket(AF_INET, SOCK_DGRAM, 0): %m"); close(roe->rtp_fd); return(-1); } rc = bind(roe->rtcp_fd, (struct sockaddr *) &sin, sizeof sin); if (rc < 0) { close(roe->rtp_fd); close(roe->rtcp_fd); continue; } /* all good! */ return(0); } /* couldn't find a free port pair */ return(-1); }