| /* |
| * Copyright (C) 2003 Yasuhiro Ohara |
| * |
| * This file is part of GNU Zebra. |
| * |
| * GNU Zebra is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2, or (at your option) any |
| * later version. |
| * |
| * GNU Zebra is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with GNU Zebra; see the file COPYING. If not, write to the |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 02111-1307, USA. |
| */ |
| |
| #ifndef OSPF6_LSA_H |
| #define OSPF6_LSA_H |
| |
| /* Debug option */ |
| #define OSPF6_LSA_DEBUG 0x01 |
| #define OSPF6_LSA_DEBUG_ORIGINATE 0x02 |
| #define OSPF6_LSA_DEBUG_EXAMIN 0x04 |
| #define OSPF6_LSA_DEBUG_FLOOD 0x08 |
| |
| #define IS_OSPF6_DEBUG_LSA(name) \ |
| (ospf6_lstype_debug (htons (OSPF6_LSTYPE_ ## name)) & \ |
| OSPF6_LSA_DEBUG) |
| #define IS_OSPF6_DEBUG_ORIGINATE(name) \ |
| (ospf6_lstype_debug (htons (OSPF6_LSTYPE_ ## name)) & \ |
| OSPF6_LSA_DEBUG_ORIGINATE) |
| #define IS_OSPF6_DEBUG_EXAMIN(name) \ |
| (ospf6_lstype_debug (htons (OSPF6_LSTYPE_ ## name)) & \ |
| OSPF6_LSA_DEBUG_EXAMIN) |
| #define IS_OSPF6_DEBUG_LSA_TYPE(type) \ |
| (ospf6_lstype_debug (type) & OSPF6_LSA_DEBUG) |
| #define IS_OSPF6_DEBUG_ORIGINATE_TYPE(type) \ |
| (ospf6_lstype_debug (type) & OSPF6_LSA_DEBUG_ORIGINATE) |
| #define IS_OSPF6_DEBUG_EXAMIN_TYPE(type) \ |
| (ospf6_lstype_debug (type) & OSPF6_LSA_DEBUG_EXAMIN) |
| #define IS_OSPF6_DEBUG_FLOOD_TYPE(type) \ |
| (ospf6_lstype_debug (type) & OSPF6_LSA_DEBUG_FLOOD) |
| |
| /* LSA definition */ |
| |
| #define OSPF6_MAX_LSASIZE 4096 |
| |
| /* Type */ |
| #define OSPF6_LSTYPE_UNKNOWN 0x0000 |
| #define OSPF6_LSTYPE_ROUTER 0x2001 |
| #define OSPF6_LSTYPE_NETWORK 0x2002 |
| #define OSPF6_LSTYPE_INTER_PREFIX 0x2003 |
| #define OSPF6_LSTYPE_INTER_ROUTER 0x2004 |
| #define OSPF6_LSTYPE_AS_EXTERNAL 0x4005 |
| #define OSPF6_LSTYPE_GROUP_MEMBERSHIP 0x2006 |
| #define OSPF6_LSTYPE_TYPE_7 0x2007 |
| #define OSPF6_LSTYPE_LINK 0x0008 |
| #define OSPF6_LSTYPE_INTRA_PREFIX 0x2009 |
| #define OSPF6_LSTYPE_SIZE 0x000a |
| |
| /* Masks for LS Type : RFC 2740 A.4.2.1 "LS type" */ |
| #define OSPF6_LSTYPE_UBIT_MASK 0x8000 |
| #define OSPF6_LSTYPE_SCOPE_MASK 0x6000 |
| #define OSPF6_LSTYPE_FCODE_MASK 0x1fff |
| |
| /* LSA scope */ |
| #define OSPF6_SCOPE_LINKLOCAL 0x0000 |
| #define OSPF6_SCOPE_AREA 0x2000 |
| #define OSPF6_SCOPE_AS 0x4000 |
| #define OSPF6_SCOPE_RESERVED 0x6000 |
| |
| /* XXX U-bit handling should be treated here */ |
| #define OSPF6_LSA_SCOPE(type) \ |
| (ntohs (type) & OSPF6_LSTYPE_SCOPE_MASK) |
| |
| /* LSA Header */ |
| #define OSPF6_LSA_HEADER_SIZE 20U |
| struct ospf6_lsa_header |
| { |
| u_int16_t age; /* LS age */ |
| u_int16_t type; /* LS type */ |
| u_int32_t id; /* Link State ID */ |
| u_int32_t adv_router; /* Advertising Router */ |
| u_int32_t seqnum; /* LS sequence number */ |
| u_int16_t checksum; /* LS checksum */ |
| u_int16_t length; /* LSA length */ |
| }; |
| |
| #define OSPF6_LSA_HEADER_END(h) \ |
| ((caddr_t)(h) + sizeof (struct ospf6_lsa_header)) |
| #define OSPF6_LSA_SIZE(h) \ |
| (ntohs (((struct ospf6_lsa_header *) (h))->length)) |
| #define OSPF6_LSA_END(h) \ |
| ((caddr_t)(h) + ntohs (((struct ospf6_lsa_header *) (h))->length)) |
| #define OSPF6_LSA_IS_TYPE(t, L) \ |
| ((L)->header->type == htons (OSPF6_LSTYPE_ ## t) ? 1 : 0) |
| #define OSPF6_LSA_IS_SAME(L1, L2) \ |
| ((L1)->header->adv_router == (L2)->header->adv_router && \ |
| (L1)->header->id == (L2)->header->id && \ |
| (L1)->header->type == (L2)->header->type) |
| #define OSPF6_LSA_IS_MATCH(t, i, a, L) \ |
| ((L)->header->adv_router == (a) && (L)->header->id == (i) && \ |
| (L)->header->type == (t)) |
| #define OSPF6_LSA_IS_DIFFER(L1, L2) ospf6_lsa_is_differ (L1, L2) |
| #define OSPF6_LSA_IS_MAXAGE(L) (ospf6_lsa_age_current (L) == MAXAGE) |
| #define OSPF6_LSA_IS_CHANGED(L1, L2) ospf6_lsa_is_changed (L1, L2) |
| |
| struct ospf6_lsa |
| { |
| char name[64]; /* dump string */ |
| |
| struct ospf6_lsa *prev; |
| struct ospf6_lsa *next; |
| |
| unsigned char lock; /* reference counter */ |
| unsigned char flag; /* special meaning (e.g. floodback) */ |
| |
| struct timeval birth; /* tv_sec when LS age 0 */ |
| struct timeval originated; /* used by MinLSInterval check */ |
| struct timeval received; /* used by MinLSArrival check */ |
| struct timeval installed; |
| |
| struct thread *expire; |
| struct thread *refresh; /* For self-originated LSA */ |
| |
| int retrans_count; |
| |
| struct ospf6_lsdb *lsdb; |
| |
| /* lsa instance */ |
| struct ospf6_lsa_header *header; |
| }; |
| |
| #define OSPF6_LSA_HEADERONLY 0x01 |
| #define OSPF6_LSA_FLOODBACK 0x02 |
| #define OSPF6_LSA_DUPLICATE 0x04 |
| #define OSPF6_LSA_IMPLIEDACK 0x08 |
| |
| struct ospf6_lsa_handler |
| { |
| u_int16_t type; /* host byte order */ |
| const char *name; |
| int (*show) (struct vty *, struct ospf6_lsa *); |
| u_char debug; |
| }; |
| |
| extern struct ospf6_lsa_handler unknown_handler; |
| #define OSPF6_LSA_IS_KNOWN(type) \ |
| (ospf6_get_lsa_handler (type) != &unknown_handler ? 1 : 0) |
| |
| /* Macro for LSA Origination */ |
| /* addr is (struct prefix *) */ |
| #define CONTINUE_IF_ADDRESS_LINKLOCAL(debug,addr) \ |
| if (IN6_IS_ADDR_LINKLOCAL (&(addr)->u.prefix6)) \ |
| { \ |
| char buf[64]; \ |
| prefix2str (addr, buf, sizeof (buf)); \ |
| if (debug) \ |
| zlog_debug ("Filter out Linklocal: %s", buf); \ |
| continue; \ |
| } |
| |
| #define CONTINUE_IF_ADDRESS_UNSPECIFIED(debug,addr) \ |
| if (IN6_IS_ADDR_UNSPECIFIED (&(addr)->u.prefix6)) \ |
| { \ |
| char buf[64]; \ |
| prefix2str (addr, buf, sizeof (buf)); \ |
| if (debug) \ |
| zlog_debug ("Filter out Unspecified: %s", buf);\ |
| continue; \ |
| } |
| |
| #define CONTINUE_IF_ADDRESS_LOOPBACK(debug,addr) \ |
| if (IN6_IS_ADDR_LOOPBACK (&(addr)->u.prefix6)) \ |
| { \ |
| char buf[64]; \ |
| prefix2str (addr, buf, sizeof (buf)); \ |
| if (debug) \ |
| zlog_debug ("Filter out Loopback: %s", buf); \ |
| continue; \ |
| } |
| |
| #define CONTINUE_IF_ADDRESS_V4COMPAT(debug,addr) \ |
| if (IN6_IS_ADDR_V4COMPAT (&(addr)->u.prefix6)) \ |
| { \ |
| char buf[64]; \ |
| prefix2str (addr, buf, sizeof (buf)); \ |
| if (debug) \ |
| zlog_debug ("Filter out V4Compat: %s", buf); \ |
| continue; \ |
| } |
| |
| #define CONTINUE_IF_ADDRESS_V4MAPPED(debug,addr) \ |
| if (IN6_IS_ADDR_V4MAPPED (&(addr)->u.prefix6)) \ |
| { \ |
| char buf[64]; \ |
| prefix2str (addr, buf, sizeof (buf)); \ |
| if (debug) \ |
| zlog_debug ("Filter out V4Mapped: %s", buf); \ |
| continue; \ |
| } |
| |
| |
| /* Function Prototypes */ |
| extern const char *ospf6_lstype_name (u_int16_t type); |
| extern u_char ospf6_lstype_debug (u_int16_t type); |
| extern int ospf6_lsa_is_differ (struct ospf6_lsa *lsa1, struct ospf6_lsa *lsa2); |
| extern int ospf6_lsa_is_changed (struct ospf6_lsa *lsa1, struct ospf6_lsa *lsa2); |
| extern u_int16_t ospf6_lsa_age_current (struct ospf6_lsa *); |
| extern void ospf6_lsa_age_update_to_send (struct ospf6_lsa *, u_int32_t); |
| extern void ospf6_lsa_premature_aging (struct ospf6_lsa *); |
| extern int ospf6_lsa_compare (struct ospf6_lsa *, struct ospf6_lsa *); |
| |
| extern char *ospf6_lsa_printbuf (struct ospf6_lsa *lsa, char *buf, int size); |
| extern void ospf6_lsa_header_print_raw (struct ospf6_lsa_header *header); |
| extern void ospf6_lsa_header_print (struct ospf6_lsa *lsa); |
| extern void ospf6_lsa_show_summary_header (struct vty *vty); |
| extern void ospf6_lsa_show_summary (struct vty *vty, struct ospf6_lsa *lsa); |
| extern void ospf6_lsa_show_dump (struct vty *vty, struct ospf6_lsa *lsa); |
| extern void ospf6_lsa_show_internal (struct vty *vty, struct ospf6_lsa *lsa); |
| extern void ospf6_lsa_show (struct vty *vty, struct ospf6_lsa *lsa); |
| |
| extern struct ospf6_lsa *ospf6_lsa_create (struct ospf6_lsa_header *header); |
| extern struct ospf6_lsa *ospf6_lsa_create_headeronly (struct ospf6_lsa_header *header); |
| extern void ospf6_lsa_delete (struct ospf6_lsa *lsa); |
| extern struct ospf6_lsa *ospf6_lsa_copy (struct ospf6_lsa *); |
| |
| extern void ospf6_lsa_lock (struct ospf6_lsa *); |
| extern void ospf6_lsa_unlock (struct ospf6_lsa *); |
| |
| extern int ospf6_lsa_expire (struct thread *); |
| extern int ospf6_lsa_refresh (struct thread *); |
| |
| extern unsigned short ospf6_lsa_checksum (struct ospf6_lsa_header *); |
| extern int ospf6_lsa_prohibited_duration (u_int16_t type, u_int32_t id, |
| u_int32_t adv_router, void *scope); |
| |
| extern void ospf6_install_lsa_handler (struct ospf6_lsa_handler *handler); |
| extern struct ospf6_lsa_handler *ospf6_get_lsa_handler (u_int16_t type); |
| |
| extern void ospf6_lsa_init (void); |
| |
| extern int config_write_ospf6_debug_lsa (struct vty *vty); |
| extern void install_element_ospf6_debug_lsa (void); |
| |
| #endif /* OSPF6_LSA_H */ |
| |