diff options
Diffstat (limited to 'proto/bgp')
| -rw-r--r-- | proto/bgp/bgp.c | 11 | ||||
| -rw-r--r-- | proto/bgp/bgp.h | 1 | ||||
| -rw-r--r-- | proto/bgp/config.Y | 3 |
3 files changed, 11 insertions, 4 deletions
diff --git a/proto/bgp/bgp.c b/proto/bgp/bgp.c index 65cc3a40..e2754649 100644 --- a/proto/bgp/bgp.c +++ b/proto/bgp/bgp.c @@ -165,12 +165,17 @@ 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; /* 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; @@ -184,7 +189,7 @@ bgp_open(struct bgp_proto *p) sk->sport = port; sk->iface = ifa; sk->vrf = p->p.vrf; - sk->flags = SKF_PASSIVE_THREAD; + sk->flags = flags | SKF_PASSIVE_THREAD; sk->tos = IP_PREC_INTERNET_CONTROL; sk->rbsize = BGP_RX_BUFFER_SIZE; sk->tbsize = BGP_TX_BUFFER_SIZE; diff --git a/proto/bgp/bgp.h b/proto/bgp/bgp.h index d5ac3bd9..2a2fe689 100644 --- a/proto/bgp/bgp.h +++ b/proto/bgp/bgp.h @@ -86,6 +86,7 @@ struct bgp_config { int peer_type; /* Internal or external BGP (BGP_PT_*, optional) */ int multihop; /* Number of hops if multihop */ int strict_bind; /* Bind listening socket to local address */ + int free_bind; /* Bind listening socket with SKF_FREEBIND */ int ttl_security; /* Enable TTL security [RFC 5082] */ int compare_path_lengths; /* Use path lengths when selecting best route */ int med_metric; /* Compare MULTI_EXIT_DISC even between routes from differen ASes */ diff --git a/proto/bgp/config.Y b/proto/bgp/config.Y index 8e42bbdb..7c0d8d65 100644 --- a/proto/bgp/config.Y +++ b/proto/bgp/config.Y @@ -31,7 +31,7 @@ CF_KEYWORDS(BGP, LOCAL, NEIGHBOR, AS, HOLD, TIME, CONNECT, RETRY, KEEPALIVE, STRICT, BIND, CONFEDERATION, MEMBER, MULTICAST, FLOW4, FLOW6, LONG, LIVED, STALE, IMPORT, IBGP, EBGP, MANDATORY, INTERNAL, EXTERNAL, SETS, DYNAMIC, RANGE, NAME, DIGITS, BGP_AIGP, AIGP, ORIGINATE, COST, ENFORCE, - FIRST) + FIRST, FREE) %type <i> bgp_nh %type <i32> bgp_afi @@ -156,6 +156,7 @@ bgp_proto: } | bgp_proto DYNAMIC NAME DIGITS expr ';' { BGP_CFG->dynamic_name_digits = $5; if ($5>10) cf_error("Dynamic name digits must be at most 10"); } | bgp_proto STRICT BIND bool ';' { BGP_CFG->strict_bind = $4; } + | bgp_proto FREE BIND bool ';' { BGP_CFG->free_bind = $4; } | bgp_proto PATH METRIC bool ';' { BGP_CFG->compare_path_lengths = $4; } | bgp_proto MED METRIC bool ';' { BGP_CFG->med_metric = $4; } | bgp_proto IGP METRIC bool ';' { BGP_CFG->igp_metric = $4; } |