ospf6_lsa.h
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上传日期:2009-11-15
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- /*
- * 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 */
- 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 */
- 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_info ("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_info ("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_info ("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_info ("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_info ("Filter out V4Mapped: %s", buf);
- continue;
- }
- /* Function Prototypes */
- char *ospf6_lstype_name (u_int16_t type);
- u_char ospf6_lstype_debug (u_int16_t type);
- int ospf6_lsa_is_differ (struct ospf6_lsa *lsa1, struct ospf6_lsa *lsa2);
- int ospf6_lsa_is_changed (struct ospf6_lsa *lsa1, struct ospf6_lsa *lsa2);
- u_int16_t ospf6_lsa_age_current (struct ospf6_lsa *);
- void ospf6_lsa_age_update_to_send (struct ospf6_lsa *, u_int32_t);
- void ospf6_lsa_premature_aging (struct ospf6_lsa *);
- int ospf6_lsa_compare (struct ospf6_lsa *, struct ospf6_lsa *);
- char *ospf6_lsa_printbuf (struct ospf6_lsa *lsa, char *buf, int size);
- void ospf6_lsa_header_print_raw (struct ospf6_lsa_header *header);
- void ospf6_lsa_header_print (struct ospf6_lsa *lsa);
- void ospf6_lsa_show_summary_header (struct vty *vty);
- void ospf6_lsa_show_summary (struct vty *vty, struct ospf6_lsa *lsa);
- void ospf6_lsa_show_dump (struct vty *vty, struct ospf6_lsa *lsa);
- void ospf6_lsa_show_internal (struct vty *vty, struct ospf6_lsa *lsa);
- void ospf6_lsa_show (struct vty *vty, struct ospf6_lsa *lsa);
- struct ospf6_lsa *ospf6_lsa_create (struct ospf6_lsa_header *header);
- struct ospf6_lsa *ospf6_lsa_create_headeronly (struct ospf6_lsa_header *header);
- void ospf6_lsa_delete (struct ospf6_lsa *lsa);
- struct ospf6_lsa *ospf6_lsa_copy (struct ospf6_lsa *);
- void ospf6_lsa_lock (struct ospf6_lsa *);
- void ospf6_lsa_unlock (struct ospf6_lsa *);
- int ospf6_lsa_expire (struct thread *);
- int ospf6_lsa_refresh (struct thread *);
- unsigned short ospf6_lsa_checksum (struct ospf6_lsa_header *);
- int ospf6_lsa_prohibited_duration (u_int16_t type, u_int32_t id,
- u_int32_t adv_router, void *scope);
- void ospf6_install_lsa_handler (struct ospf6_lsa_handler *handler);
- struct ospf6_lsa_handler *ospf6_get_lsa_handler (u_int16_t type);
- void ospf6_lsa_init ();
- void ospf6_lsa_cmd_init ();
- int config_write_ospf6_debug_lsa (struct vty *vty);
- void install_element_ospf6_debug_lsa ();
- #endif /* OSPF6_LSA_H */