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Annotation of embedaddon/bird/proto/ospf/lsalib.h, revision 1.1.1.1

1.1       misho       1: /*
                      2:  *      BIRD -- OSPF
                      3:  *
                      4:  *      (c) 1999--2000 Ondrej Filip <feela@network.cz>
                      5:  *     (c) 2009--2014 Ondrej Zajicek <santiago@crfreenet.org>
                      6:  *     (c) 2009--2014 CZ.NIC z.s.p.o.
                      7:  *
                      8:  *      Can be freely distributed and used under the terms of the GNU GPL.
                      9:  */
                     10: 
                     11: #ifndef _BIRD_OSPF_LSALIB_H_
                     12: #define _BIRD_OSPF_LSALIB_H_
                     13: 
                     14: #ifdef CPU_BIG_ENDIAN
                     15: static inline void lsa_hton_hdr(struct ospf_lsa_header *h, struct ospf_lsa_header *n) { *n = *h; };
                     16: static inline void lsa_ntoh_hdr(struct ospf_lsa_header *n, struct ospf_lsa_header *h) { *h = *n; };
                     17: static inline void lsa_hton_body(void *h, void *n, u16 len) { ASSERT(h != n); memcpy(n, h, len); };
                     18: static inline void lsa_ntoh_body(void *n, void *h, u16 len) { ASSERT(n != h); memcpy(h, n, len); };
                     19: static inline void lsa_hton_body1(void *h, u16 len) { };
                     20: static inline void lsa_ntoh_body1(void *n, u16 len) { };
                     21: #else
                     22: void lsa_hton_hdr(struct ospf_lsa_header *h, struct ospf_lsa_header *n);
                     23: void lsa_ntoh_hdr(struct ospf_lsa_header *n, struct ospf_lsa_header *h);
                     24: void lsa_hton_body(void *h, void *n, u16 len);
                     25: void lsa_ntoh_body(void *n, void *h, u16 len);
                     26: static inline void lsa_hton_body1(void *h, u16 len) { lsa_hton_body(h, h, len); };
                     27: static inline void lsa_ntoh_body1(void *n, u16 len) { lsa_ntoh_body(n, n, len); };
                     28: #endif
                     29: 
                     30: struct ospf_lsa_rt_walk {
                     31:   struct top_hash_entry *en;
                     32:   void *buf, *bufend;
                     33:   int ospf2;
                     34:   u16 type, metric;
                     35:   u32 id, data, lif, nif;
                     36: };
                     37: 
                     38: 
                     39: void lsa_get_type_domain_(u32 itype, struct ospf_iface *ifa, u32 *otype, u32 *domain);
                     40: 
                     41: static inline void lsa_get_type_domain(struct ospf_lsa_header *lsa, struct ospf_iface *ifa, u32 *otype, u32 *domain)
                     42: { lsa_get_type_domain_(lsa->type_raw, ifa, otype, domain); }
                     43: 
                     44: static inline u32 lsa_get_etype(struct ospf_lsa_header *h, struct ospf_proto *p UNUSED4 UNUSED6)
                     45: { return ospf_is_v2(p) ? (h->type_raw & LSA_T_V2_MASK) : h->type_raw; }
                     46: 
                     47: 
                     48: int lsa_flooding_allowed(u32 type, u32 domain, struct ospf_iface *ifa);
                     49: void lsa_generate_checksum(struct ospf_lsa_header *lsa, const u8 *body);
                     50: u16 lsa_verify_checksum(const void *lsa_n, int lsa_len);
                     51: 
                     52: #define CMP_NEWER 1
                     53: #define CMP_SAME 0
                     54: #define CMP_OLDER -1
                     55: int lsa_comp(struct ospf_lsa_header *l1, struct ospf_lsa_header *l2);
                     56: void lsa_walk_rt_init(struct ospf_proto *po, struct top_hash_entry *act, struct ospf_lsa_rt_walk *rt);
                     57: int lsa_walk_rt(struct ospf_lsa_rt_walk *rt);
                     58: void lsa_parse_sum_net(struct top_hash_entry *en, int ospf2, ip_addr *ip, int *pxlen, u8 *pxopts, u32 *metric);
                     59: void lsa_parse_sum_rt(struct top_hash_entry *en, int ospf2, u32 *drid, u32 *metric, u32 *options);
                     60: void lsa_parse_ext(struct top_hash_entry *en, int ospf2, struct ospf_lsa_ext_local *rt);
                     61: int lsa_validate(struct ospf_lsa_header *lsa, u32 lsa_type, int ospf2, void *body);
                     62: 
                     63: #endif /* _BIRD_OSPF_LSALIB_H_ */