diff options
Diffstat (limited to 'ospf6d/ospf6_lsa.h')
| -rw-r--r-- | ospf6d/ospf6_lsa.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/ospf6d/ospf6_lsa.h b/ospf6d/ospf6_lsa.h index 4fc2f0dd18..b2c83a1d37 100644 --- a/ospf6d/ospf6_lsa.h +++ b/ospf6d/ospf6_lsa.h @@ -87,11 +87,17 @@ struct ospf6_lsa_header { uint16_t length; /* LSA length */ }; + static inline char *ospf6_lsa_header_end(struct ospf6_lsa_header *header) { return (char *)header + sizeof(struct ospf6_lsa_header); } +static inline void *lsa_after_header(struct ospf6_lsa_header *header) +{ + return (char *)header + sizeof(struct ospf6_lsa_header); +} + static inline char *ospf6_lsa_end(struct ospf6_lsa_header *header) { return (char *)header + ntohs(header->length); @@ -116,6 +122,94 @@ static inline uint16_t ospf6_lsa_size(struct ospf6_lsa_header *header) #define OSPF6_LSA_IS_CHANGED(L1, L2) ospf6_lsa_is_changed (L1, L2) #define OSPF6_LSA_IS_SEQWRAP(L) ((L)->header->seqnum == htonl(OSPF_MAX_SEQUENCE_NUMBER + 1)) +/* Router-LSA */ +#define OSPF6_ROUTER_LSA_MIN_SIZE 4U +struct ospf6_router_lsa { + uint8_t bits; + uint8_t options[3]; + /* followed by ospf6_router_lsdesc(s) */ +}; + +/* Link State Description in Router-LSA */ +#define OSPF6_ROUTER_LSDESC_FIX_SIZE 16U +struct ospf6_router_lsdesc { + uint8_t type; + uint8_t reserved; + uint16_t metric; /* output cost */ + uint32_t interface_id; + uint32_t neighbor_interface_id; + in_addr_t neighbor_router_id; +}; + +#define OSPF6_ROUTER_LSDESC_POINTTOPOINT 1 +#define OSPF6_ROUTER_LSDESC_TRANSIT_NETWORK 2 +#define OSPF6_ROUTER_LSDESC_STUB_NETWORK 3 +#define OSPF6_ROUTER_LSDESC_VIRTUAL_LINK 4 + +/* Network-LSA */ +#define OSPF6_NETWORK_LSA_MIN_SIZE 4U +struct ospf6_network_lsa { + uint8_t reserved; + uint8_t options[3]; + /* followed by ospf6_network_lsdesc(s) */ +}; + +/* Link State Description in Network-LSA */ +#define OSPF6_NETWORK_LSDESC_FIX_SIZE 4U +struct ospf6_network_lsdesc { + in_addr_t router_id; +}; +#define NETWORK_LSDESC_GET_NBR_ROUTERID(x) \ + (((struct ospf6_network_lsdesc *)(x))->router_id) + +/* Inter-Area-Prefix-LSA */ +#define OSPF6_INTER_PREFIX_LSA_MIN_SIZE 4U /* w/o IPv6 prefix */ +struct ospf6_inter_prefix_lsa { + uint32_t metric; + struct ospf6_prefix prefix; +}; + +/* Inter-Area-Router-LSA */ +#define OSPF6_INTER_ROUTER_LSA_FIX_SIZE 12U +struct ospf6_inter_router_lsa { + uint8_t mbz; + uint8_t options[3]; + uint32_t metric; + uint32_t router_id; +}; + +/* AS-External-LSA */ +#define OSPF6_AS_EXTERNAL_LSA_MIN_SIZE 4U /* w/o IPv6 prefix */ +struct ospf6_as_external_lsa { + uint32_t bits_metric; + + struct ospf6_prefix prefix; + /* followed by none or one forwarding address */ + /* followed by none or one external route tag */ + /* followed by none or one referenced LS-ID */ +}; + +/* FIXME: move nssa lsa here. */ + +/* Link-LSA */ +#define OSPF6_LINK_LSA_MIN_SIZE 24U /* w/o 1st IPv6 prefix */ +struct ospf6_link_lsa { + uint8_t priority; + uint8_t options[3]; + struct in6_addr linklocal_addr; + uint32_t prefix_num; + /* followed by ospf6 prefix(es) */ +}; + +/* Intra-Area-Prefix-LSA */ +#define OSPF6_INTRA_PREFIX_LSA_MIN_SIZE 12U /* w/o 1st IPv6 prefix */ +struct ospf6_intra_prefix_lsa { + uint16_t prefix_num; + uint16_t ref_type; + uint32_t ref_id; + in_addr_t ref_adv_router; + /* followed by ospf6 prefix(es) */ +}; struct ospf6_lsa { char name[64]; /* dump string */ @@ -146,6 +240,7 @@ struct ospf6_lsa { bool tobe_acknowledged; }; + #define OSPF6_LSA_HEADERONLY 0x01 #define OSPF6_LSA_FLOODBACK 0x02 #define OSPF6_LSA_DUPLICATE 0x04 @@ -274,4 +369,11 @@ extern void ospf6_flush_self_originated_lsas_now(struct ospf6 *ospf6); extern struct ospf6 *ospf6_get_by_lsdb(struct ospf6_lsa *lsa); struct ospf6_lsa *ospf6_find_external_lsa(struct ospf6 *ospf6, struct prefix *p); + +void *lsdesc_start_lsa_type(struct ospf6_lsa_header *header, int lsa_type); +void *lsdesc_start(struct ospf6_lsa_header *header); + +void *nth_lsdesc(struct ospf6_lsa_header *header, int pos); +void *nth_prefix(struct ospf6_lsa_header *header, int pos); + #endif /* OSPF6_LSA_H */ |