diff options
| author | Alexander Zubkov <green@qrator.net> | 2022-01-08 18:31:56 +0100 |
|---|---|---|
| committer | Ondrej Zajicek (work) <santiago@crfreenet.org> | 2022-01-08 19:02:31 +0100 |
| commit | 87a02489f3880689a4e2ad72b0b981649dad2154 (patch) | |
| tree | b5e486015ab7907bf165ae20851290258e72114d /sysdep/unix/io.c | |
| parent | bcb25084d31fdb90fcf1666f10e73fe0f863afc0 (diff) | |
IO: Support nonlocal bind in socket interface
Add option to socket interface for nonlocal binding, i.e. binding to an
IP address that is not present on interfaces. This behaviour is enabled
when SKF_FREEBIND socket flag is set. For Linux systems, it is
implemented by IP_FREEBIND socket flag.
Minor changes done by commiter.
Diffstat (limited to 'sysdep/unix/io.c')
| -rw-r--r-- | sysdep/unix/io.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdep/unix/io.c b/sysdep/unix/io.c index 3d67d0a7..4fd77453 100644 --- a/sysdep/unix/io.c +++ b/sysdep/unix/io.c @@ -1436,6 +1436,10 @@ sk_open(sock *s) if (sk_set_high_port(s) < 0) log(L_WARN "Socket error: %s%#m", s->err); + if (s->flags & SKF_FREEBIND) + if (sk_set_freebind(s) < 0) + log(L_WARN "Socket error: %s%#m", s->err); + sockaddr_fill(&sa, s->af, bind_addr, s->iface, bind_port); if (bind(fd, &sa.sa, SA_LEN(sa)) < 0) ERR2("bind"); |