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143 lines
4.5 KiB
C
143 lines
4.5 KiB
C
/*
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* Copyright (C) 1999-2003 Yasuhiro Ohara
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*
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* This file is part of GNU Zebra.
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*
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* GNU Zebra is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* GNU Zebra is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Zebra; see the file COPYING. If not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef OSPF6_MESSAGE_H
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#define OSPF6_MESSAGE_H
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#define OSPF6_MESSAGE_BUFSIZ 4096
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/* Debug option */
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extern unsigned char conf_debug_ospf6_message[];
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#define OSPF6_DEBUG_MESSAGE_SEND 0x01
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#define OSPF6_DEBUG_MESSAGE_RECV 0x02
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#define OSPF6_DEBUG_MESSAGE_ON(type, level) \
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(conf_debug_ospf6_message[type] |= (level))
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#define OSPF6_DEBUG_MESSAGE_OFF(type, level) \
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(conf_debug_ospf6_message[type] &= ~(level))
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#define IS_OSPF6_DEBUG_MESSAGE(t, e) \
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(conf_debug_ospf6_message[t] & OSPF6_DEBUG_MESSAGE_ ## e)
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/* Type */
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#define OSPF6_MESSAGE_TYPE_UNKNOWN 0x0
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#define OSPF6_MESSAGE_TYPE_HELLO 0x1 /* Discover/maintain neighbors */
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#define OSPF6_MESSAGE_TYPE_DBDESC 0x2 /* Summarize database contents */
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#define OSPF6_MESSAGE_TYPE_LSREQ 0x3 /* Database download request */
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#define OSPF6_MESSAGE_TYPE_LSUPDATE 0x4 /* Database update */
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#define OSPF6_MESSAGE_TYPE_LSACK 0x5 /* Flooding acknowledgment */
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#define OSPF6_MESSAGE_TYPE_ALL 0x6 /* For debug option */
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/* OSPFv3 packet header */
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#define OSPF6_HEADER_SIZE 16U
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struct ospf6_header
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{
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u_char version;
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u_char type;
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u_int16_t length;
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u_int32_t router_id;
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u_int32_t area_id;
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u_int16_t checksum;
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u_char instance_id;
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u_char reserved;
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};
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#define OSPF6_MESSAGE_END(H) ((caddr_t) (H) + ntohs ((H)->length))
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/* Hello */
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#define OSPF6_HELLO_MIN_SIZE 20U
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struct ospf6_hello
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{
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ifindex_t interface_id;
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u_char priority;
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u_char options[3];
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u_int16_t hello_interval;
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u_int16_t dead_interval;
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u_int32_t drouter;
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u_int32_t bdrouter;
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/* Followed by Router-IDs */
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};
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/* Database Description */
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#define OSPF6_DB_DESC_MIN_SIZE 12U
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struct ospf6_dbdesc
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{
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u_char reserved1;
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u_char options[3];
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u_int16_t ifmtu;
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u_char reserved2;
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u_char bits;
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u_int32_t seqnum;
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/* Followed by LSA Headers */
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};
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#define OSPF6_DBDESC_MSBIT (0x01) /* master/slave bit */
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#define OSPF6_DBDESC_MBIT (0x02) /* more bit */
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#define OSPF6_DBDESC_IBIT (0x04) /* initial bit */
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/* Link State Request */
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#define OSPF6_LS_REQ_MIN_SIZE 0U
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/* It is just a sequence of entries below */
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#define OSPF6_LSREQ_LSDESC_FIX_SIZE 12U
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struct ospf6_lsreq_entry
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{
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u_int16_t reserved; /* Must Be Zero */
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u_int16_t type; /* LS type */
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u_int32_t id; /* Link State ID */
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u_int32_t adv_router; /* Advertising Router */
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};
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/* Link State Update */
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#define OSPF6_LS_UPD_MIN_SIZE 4U
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struct ospf6_lsupdate
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{
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u_int32_t lsa_number;
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/* Followed by LSAs */
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};
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/* Link State Acknowledgement */
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#define OSPF6_LS_ACK_MIN_SIZE 0U
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/* It is just a sequence of LSA Headers */
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/* Function definition */
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extern void ospf6_hello_print (struct ospf6_header *);
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extern void ospf6_dbdesc_print (struct ospf6_header *);
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extern void ospf6_lsreq_print (struct ospf6_header *);
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extern void ospf6_lsupdate_print (struct ospf6_header *);
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extern void ospf6_lsack_print (struct ospf6_header *);
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extern int ospf6_iobuf_size (unsigned int size);
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extern void ospf6_message_terminate (void);
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extern int ospf6_receive (struct thread *thread);
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extern int ospf6_hello_send (struct thread *thread);
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extern int ospf6_dbdesc_send (struct thread *thread);
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extern int ospf6_dbdesc_send_newone (struct thread *thread);
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extern int ospf6_lsreq_send (struct thread *thread);
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extern int ospf6_lsupdate_send_interface (struct thread *thread);
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extern int ospf6_lsupdate_send_neighbor (struct thread *thread);
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extern int ospf6_lsack_send_interface (struct thread *thread);
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extern int ospf6_lsack_send_neighbor (struct thread *thread);
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extern int config_write_ospf6_debug_message (struct vty *);
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extern void install_element_ospf6_debug_message (void);
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#endif /* OSPF6_MESSAGE_H */
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