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Fixes problem with RIP on multiple ifaces on BSD.

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RIP sockets for multiple ifaces collided, because we cannot bind to
a specific iface on BSD. Workarounded by SO_REUSEPORT.

Thanks to Eugene M. Zheganin for the bugreport.
This commit is contained in:
Ondrej Zajicek
2013-11-22 02:12:21 +01:00
parent 548c329cde
commit 8931425d02
3 changed files with 11 additions and 0 deletions
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9
sysdep/unix/io.c
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@@ -1181,6 +1181,15 @@ sk_open(sock *s)
port = s->sport;
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)) < 0)
ERR("SO_REUSEADDR");
#ifdef CONFIG_NO_IFACE_BIND
/* Workaround missing ability to bind to an iface */
if ((type == SK_UDP) && s->iface && ipa_zero(s->saddr))
{
if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &one, sizeof(one)) < 0)
ERR("SO_REUSEPORT");
}
#endif
}
fill_in_sockaddr(&sa, s->saddr, s->iface, port);
if (bind(fd, (struct sockaddr *) &sa, sizeof(sa)) < 0)