diff options
Diffstat (limited to 'proto/ospf/ospf.h')
| -rw-r--r-- | proto/ospf/ospf.h | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h index 7fac47c8..aac13512 100644 --- a/proto/ospf/ospf.h +++ b/proto/ospf/ospf.h @@ -75,6 +75,7 @@ #define OSPF_DEFAULT_TICK 1 #define OSPF_DEFAULT_STUB_COST 1000 #define OSPF_DEFAULT_ECMP_LIMIT 16 +#define OSPF_DEFAULT_GR_TIME 120 #define OSPF_DEFAULT_TRANSINT 40 #define OSPF_MIN_PKT_SIZE 256 @@ -82,6 +83,9 @@ #define OSPF_VLINK_ID_OFFSET 0x80000000 +#define OSPF_GR_ABLE 1 +#define OSPF_GR_AWARE 2 + struct ospf_config { struct proto_config c; @@ -97,7 +101,9 @@ struct ospf_config u8 abr; u8 asbr; u8 vpn_pe; - int ecmp; + u8 gr_mode; /* Graceful restart mode (OSPF_GR_*) */ + uint gr_time; /* Graceful restart interval */ + uint ecmp; list area_list; /* list of area configs (struct ospf_area_config) */ list vlink_list; /* list of configured vlinks (struct ospf_iface_patt) */ }; @@ -216,6 +222,9 @@ struct ospf_proto list area_list; /* List of OSPF areas (struct ospf_area) */ int areano; /* Number of area I belong to */ int padj; /* Number of neighbors in Exchange or Loading state */ + int gr_count; /* Number of neighbors in graceful restart state */ + int gr_recovery; /* Graceful restart recovery is active */ + btime gr_timeout; /* The end time of grace restart recovery */ struct fib rtf; /* Routing table */ struct idm idm; /* OSPFv3 LSA ID map */ u8 ospf2; /* OSPF v2 or v3 */ @@ -228,6 +237,8 @@ struct ospf_proto u8 asbr; /* May i originate any ext/NSSA lsa? */ u8 vpn_pe; /* Should we do VPN PE specific behavior (RFC 4577)? */ u8 ecmp; /* Maximal number of nexthops in ECMP route, or 0 */ + u8 gr_mode; /* Graceful restart mode (OSPF_GR_*) */ + uint gr_time; /* Graceful restart interval */ u64 csn64; /* Last used cryptographic sequence number */ struct ospf_area *backbone; /* If exists */ event *flood_event; /* Event for flooding LS updates */ @@ -346,6 +357,8 @@ struct ospf_neighbor pool *pool; struct ospf_iface *ifa; u8 state; + u8 gr_active; /* We act as GR helper for the neighbor */ + u8 got_my_rt_lsa; /* Received my Rt-LSA in DBDES exchanged */ timer *inactim; /* Inactivity timer */ u8 imms; /* I, M, Master/slave received */ u8 myimms; /* I, M Master/slave */ @@ -388,6 +401,7 @@ struct ospf_neighbor #define ACKL_DIRECT 0 #define ACKL_DELAY 1 timer *ackd_timer; /* Delayed ack timer */ + timer *gr_timer; /* Graceful restart timer, non-NULL only if gr_active */ struct bfd_request *bfd_req; /* BFD request, if BFD is used */ void *ldd_buffer; /* Last database description packet */ u32 ldd_bsize; /* Buffer size for ldd_buffer */ @@ -555,6 +569,7 @@ struct ospf_auth3 #define LSA_T_NSSA 0x2007 #define LSA_T_LINK 0x0008 #define LSA_T_PREFIX 0x2009 +#define LSA_T_GR 0x000B #define LSA_T_RI_ 0x000C #define LSA_T_RI_LINK 0x800C #define LSA_T_RI_AREA 0xA00C @@ -569,6 +584,7 @@ struct ospf_auth3 /* OSPFv2 Opaque LSA Types */ /* https://www.iana.org/assignments/ospf-opaque-types/ospf-opaque-types.xhtml#ospf-opaque-types-2 */ +#define LSA_OT_GR 0x03 #define LSA_OT_RI 0x04 #define LSA_FUNCTION_MASK 0x1FFF @@ -613,6 +629,12 @@ struct ospf_auth3 #define LSA_EXT3_FBIT 0x02000000 #define LSA_EXT3_TBIT 0x01000000 +/* OSPF Grace LSA (GR) TLVs */ +/* https://www.iana.org/assignments/ospfv2-parameters/ospfv2-parameters.xhtml#ospfv2-parameters-13 */ +#define LSA_GR_PERIOD 1 +#define LSA_GR_REASON 2 +#define LSA_GR_ADDRESS 3 + /* OSPF Router Information (RI) TLVs */ /* https://www.iana.org/assignments/ospf-parameters/ospf-parameters.xhtml#ri-tlv */ #define LSA_RI_RIC 1 @@ -959,6 +981,8 @@ static inline int oa_is_ext(struct ospf_area *oa) static inline int oa_is_nssa(struct ospf_area *oa) { return oa->options & OPT_N; } +void ospf_stop_gr_recovery(struct ospf_proto *p); + void ospf_sh_neigh(struct proto *P, char *iff); void ospf_sh(struct proto *P); void ospf_sh_iface(struct proto *P, char *iff); @@ -990,12 +1014,18 @@ static inline struct nbma_node * find_nbma_node(struct ospf_iface *ifa, ip_addr /* neighbor.c */ struct ospf_neighbor *ospf_neighbor_new(struct ospf_iface *ifa); void ospf_neigh_sm(struct ospf_neighbor *n, int event); +void ospf_neigh_cancel_graceful_restart(struct ospf_neighbor *n); +void ospf_neigh_notify_grace_lsa(struct ospf_neighbor *n, struct top_hash_entry *en); +void ospf_neigh_lsadb_changed_(struct ospf_proto *p, struct top_hash_entry *en); void ospf_dr_election(struct ospf_iface *ifa); struct ospf_neighbor *find_neigh(struct ospf_iface *ifa, u32 rid); struct ospf_neighbor *find_neigh_by_ip(struct ospf_iface *ifa, ip_addr ip); void ospf_neigh_update_bfd(struct ospf_neighbor *n, int use_bfd); void ospf_sh_neigh_info(struct ospf_neighbor *n); +static inline void ospf_neigh_lsadb_changed(struct ospf_proto *p, struct top_hash_entry *en) +{ if (p->gr_count) ospf_neigh_lsadb_changed_(p, en); } + /* packet.c */ void ospf_pkt_fill_hdr(struct ospf_iface *ifa, void *buf, u8 h_type); int ospf_rx_hook(sock * sk, uint size); |