diff options
Diffstat (limited to 'proto/ospf/ospf.h')
| -rw-r--r-- | proto/ospf/ospf.h | 40 |
1 files changed, 33 insertions, 7 deletions
diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h index 54eeb74c..f26ed99c 100644 --- a/proto/ospf/ospf.h +++ b/proto/ospf/ospf.h @@ -69,6 +69,9 @@ #define MINLSARRIVAL (1 S_) #define LSINFINITY 0xffffff +#define OSPF_PKT_TYPES 5 /* HELLO_P .. LSACK_P */ +#define OSPF3_CRYPTO_ID 1 /* OSPFv3 Cryptographic Protocol ID */ + #define OSPF_DEFAULT_TICK 1 #define OSPF_DEFAULT_STUB_COST 1000 #define OSPF_DEFAULT_ECMP_LIMIT 16 @@ -222,6 +225,7 @@ struct ospf_proto u8 merge_external; /* Should i merge external routes? */ u8 asbr; /* May i originate any ext/NSSA lsa? */ u8 ecmp; /* Maximal number of nexthops in ECMP route, or 0 */ + u64 csn64; /* Last used cryptographic sequence number */ struct ospf_area *backbone; /* If exists */ event *flood_event; /* Event for flooding LS updates */ void *lsab; /* LSA buffer used when originating router LSAs */ @@ -254,8 +258,6 @@ struct ospf_area struct fib rtr; /* Routing tables for routers */ }; - - struct ospf_iface { node n; @@ -387,7 +389,8 @@ struct ospf_neighbor 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 */ - u32 csn; /* Last received crypt seq number (for MD5) */ + u32 csn; /* OSPFv2: Last received crypt seq number */ + u64 csn64[OSPF_PKT_TYPES]; /* OSPFv3: Last received CSN for each type of packet */ }; @@ -422,6 +425,7 @@ struct ospf_neighbor #define OSPF_AUTH_SIMPLE 1 #define OSPF_AUTH_CRYPT 2 +#define OSPF3_AUTH_HMAC 1 /* HMAC Cryptographic Authentication */ /* OSPF neighbor states */ #define NEIGHBOR_DOWN 0 @@ -459,10 +463,12 @@ struct ospf_neighbor #define OPT_MC 0x0004 /* Related to MOSPF, not used and obsolete */ #define OPT_N 0x0008 /* Related to NSSA */ #define OPT_P 0x0008 /* OSPFv2, flags P and N share position, see NSSA RFC */ -#define OPT_EA 0x0010 /* OSPFv2, external attributes, not used and obsolete */ +#define OPT_L_V2 0x0010 /* OSPFv2, link-local signaling, not used */ #define OPT_R 0x0010 /* OSPFv3, originator is active router */ #define OPT_DC 0x0020 /* Related to demand circuits, not used */ #define OPT_AF 0x0100 /* OSPFv3 Address Families (RFC 5838) */ +#define OPT_L_V3 0x0200 /* OSPFv3, link-local signaling */ +#define OPT_AT 0x0400 /* OSPFv3, authentication trailer */ /* Router-LSA VEB flags are are stored together with links (OSPFv2) or options (OSPFv3) */ #define OPT_RT_B (0x01 << 24) @@ -489,20 +495,38 @@ struct ospf_packet u8 autype; /* Undefined for OSPFv3 */ }; +struct ospf_lls +{ + u16 checksum; + u16 length; + byte data[0]; +}; + struct ospf_auth_crypto { u16 zero; u8 keyid; u8 len; - u32 csn; + u32 csn; /* Cryptographic sequence number (32-bit) */ }; -union ospf_auth +union ospf_auth2 { u8 password[8]; struct ospf_auth_crypto c32; }; +struct ospf_auth3 +{ + u16 type; /* Authentication type (OSPF3_AUTH_*) */ + u16 length; /* Authentication trailer length (header + data) */ + u16 reserved; + u16 sa_id; /* Security association identifier (key_id) */ + u64 csn; /* Cryptographic sequence number (64-bit) */ + byte data[0]; /* Authentication data */ +}; + + /* Packet types */ #define HELLO_P 1 /* Hello */ #define DBDES_P 2 /* Database description */ @@ -957,7 +981,7 @@ static inline void ospf_send_to_des(struct ospf_iface *ifa) #endif static inline uint ospf_pkt_hdrlen(struct ospf_proto *p) -{ return ospf_is_v2(p) ? (sizeof(struct ospf_packet) + sizeof(union ospf_auth)) : sizeof(struct ospf_packet); } +{ return ospf_is_v2(p) ? (sizeof(struct ospf_packet) + sizeof(union ospf_auth2)) : sizeof(struct ospf_packet); } static inline void * ospf_tx_buffer(struct ospf_iface *ifa) { return ifa->sk->tbuf; } @@ -969,11 +993,13 @@ static inline void * ospf_tx_buffer(struct ospf_iface *ifa) void ospf_send_hello(struct ospf_iface *ifa, int kind, struct ospf_neighbor *dirn); void ospf_receive_hello(struct ospf_packet *pkt, struct ospf_iface *ifa, struct ospf_neighbor *n, ip_addr faddr); +uint ospf_hello3_options(struct ospf_packet *pkt); /* dbdes.c */ void ospf_send_dbdes(struct ospf_proto *p, struct ospf_neighbor *n); void ospf_rxmt_dbdes(struct ospf_proto *p, struct ospf_neighbor *n); void ospf_receive_dbdes(struct ospf_packet *pkt, struct ospf_iface *ifa, struct ospf_neighbor *n); +uint ospf_dbdes3_options(struct ospf_packet *pkt); /* lsreq.c */ void ospf_send_lsreq(struct ospf_proto *p, struct ospf_neighbor *n); |