diff options
Diffstat (limited to 'proto/bgp/bgp.h')
| -rw-r--r-- | proto/bgp/bgp.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/proto/bgp/bgp.h b/proto/bgp/bgp.h index d5448a6..8477f9e 100644 --- a/proto/bgp/bgp.h +++ b/proto/bgp/bgp.h @@ -79,6 +79,7 @@ struct bgp_proto { ip_addr next_hop; /* Either the peer or multihop_via */ struct neighbor *neigh; /* Neighbor entry corresponding to next_hop */ ip_addr local_addr; /* Address of the local end of the link to next_hop */ + ip_addr source_addr; /* Address used as advertised next hop, usually local_addr */ struct event *event; /* Event for respawning and shutting process */ struct bgp_bucket **bucket_hash; /* Hash table of attribute buckets */ unsigned int hash_size, hash_count, hash_limit; @@ -147,6 +148,17 @@ void bgp_store_error(struct bgp_proto *p, struct bgp_conn *c, u8 class, u32 code /* attrs.c */ +/* Hack: although BA_NEXT_HOP attribute has type EAF_TYPE_IP_ADDRESS, in IPv6 + * we store two addesses in it - a global address and a link local address. + */ +#ifdef IPV6 +#define NEXT_HOP_LENGTH (2*sizeof(ip_addr)) +static inline void set_next_hop(byte *b, ip_addr addr) { ((ip_addr *) b)[0] = addr; ((ip_addr *) b)[1] = IPA_NONE; } +#else +#define NEXT_HOP_LENGTH sizeof(ip_addr) +static inline void set_next_hop(byte *b, ip_addr addr) { ((ip_addr *) b)[0] = addr; } +#endif + void bgp_attach_attr(struct ea_list **to, struct linpool *pool, unsigned attr, uintptr_t val); byte *bgp_attach_attr_wa(struct ea_list **to, struct linpool *pool, unsigned attr, unsigned len); struct rta *bgp_decode_attrs(struct bgp_conn *conn, byte *a, unsigned int len, struct linpool *pool, int mandatory); |