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bsc_msc_ip: Use the autobind functionality of the kernel 

We do not care about the source port for the callagent relay
and can use the autobind functionality of the kernel to pick
a port for us...
This commit is contained in:
Holger Hans Peter Freyther 2010-03-31 08:41:52 +02:00
parent 2ffe7aa340
commit fd876b7488
1 changed files with 1 additions and 18 deletions
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19
openbsc/src/bsc_msc_ip.c
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@ -637,7 +637,6 @@ static void mgcp_forward(struct msgb *msg)
static int mgcp_create_port(void)
{
int on;
int port;
struct sockaddr_in addr;
mgcp_agent.bfd.fd = socket(AF_INET, SOCK_DGRAM, 0);
@ -649,26 +648,10 @@ static int mgcp_create_port(void)
on = 1;
setsockopt(mgcp_agent.bfd.fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
/* try to bind the socket */
/* connect to the remote by using autobind */
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
for (port = 2727; port < 3000; ++port) {
addr.sin_port = htons(port);
if (bind(mgcp_agent.bfd.fd, (struct sockaddr *) &addr, sizeof(addr)) == 0)
break;
perror("foo");
}
if (port >= 3000) {
LOGP(DMGCP, LOGL_FATAL, "Failed to bind to any port.\n");
close(mgcp_agent.bfd.fd);
mgcp_agent.bfd.fd = -1;
return -1;
}
/* connect to the remote */
addr.sin_port = htons(2427);
if (connect(mgcp_agent.bfd.fd, (struct sockaddr *) & addr, sizeof(addr)) < 0) {
LOGP(DMGCP, LOGL_FATAL, "Failed to connect to local MGCP GW. %d\n", errno);