diff options
| author | Ondrej Zajicek (work) <santiago@crfreenet.org> | 2022-01-09 02:40:58 +0100 |
|---|---|---|
| committer | Ondrej Zajicek (work) <santiago@crfreenet.org> | 2022-01-09 02:44:32 +0100 |
| commit | 60e9def9ef7b5d16f868b0fb4ab1192d59fd7541 (patch) | |
| tree | 101cc5b854d27a4ed72960712f5c9b0b0f38028f /proto/bgp/bgp.c | |
| parent | 87a02489f3880689a4e2ad72b0b981649dad2154 (diff) | |
BGP: Add option 'free bind'
The BGP 'free bind' option applies the IP_FREEBIND/IPV6_FREEBIND
socket option for the BGP listening socket.
Thanks to Alexander Zubkov for the idea.
Diffstat (limited to 'proto/bgp/bgp.c')
| -rw-r--r-- | proto/bgp/bgp.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/proto/bgp/bgp.c b/proto/bgp/bgp.c index e4d754b1..b6f21bc6 100644 --- a/proto/bgp/bgp.c +++ b/proto/bgp/bgp.c @@ -157,6 +157,8 @@ bgp_open(struct bgp_proto *p) ip_addr addr = p->cf->strict_bind ? p->cf->local_ip : (p->ipv4 ? IPA_NONE4 : IPA_NONE6); uint port = p->cf->local_port; + uint flags = p->cf->free_bind ? SKF_FREEBIND : 0; + uint flag_mask = SKF_FREEBIND; /* FIXME: Add some global init? */ if (!bgp_linpool) @@ -165,8 +167,11 @@ bgp_open(struct bgp_proto *p) /* We assume that cf->iface is defined iff cf->local_ip is link-local */ WALK_LIST(bs, bgp_sockets) - if (ipa_equal(bs->sk->saddr, addr) && (bs->sk->sport == port) && - (bs->sk->iface == ifa) && (bs->sk->vrf == p->p.vrf)) + if (ipa_equal(bs->sk->saddr, addr) && + (bs->sk->sport == port) && + (bs->sk->iface == ifa) && + (bs->sk->vrf == p->p.vrf) && + ((bs->sk->flags & flag_mask) == flags)) { bs->uc++; p->sock = bs; @@ -180,7 +185,7 @@ bgp_open(struct bgp_proto *p) sk->sport = port; sk->iface = ifa; sk->vrf = p->p.vrf; - sk->flags = 0; + sk->flags = flags; sk->tos = IP_PREC_INTERNET_CONTROL; sk->rbsize = BGP_RX_BUFFER_SIZE; sk->tbsize = BGP_TX_BUFFER_SIZE; |