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/*
* Copyright (C) 1999-2003 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 this program; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef OSPF6_MESSAGE_H
#define OSPF6_MESSAGE_H
#define OSPF6_MESSAGE_BUFSIZ 4096
/* Debug option */
extern unsigned char conf_debug_ospf6_message[];
#define OSPF6_DEBUG_MESSAGE_SEND 0x01
#define OSPF6_DEBUG_MESSAGE_RECV 0x02
#define OSPF6_DEBUG_MESSAGE_ON(type, level) \
(conf_debug_ospf6_message[type] |= (level))
#define OSPF6_DEBUG_MESSAGE_OFF(type, level) \
(conf_debug_ospf6_message[type] &= ~(level))
#define IS_OSPF6_DEBUG_MESSAGE(t, e) \
(conf_debug_ospf6_message[t] & OSPF6_DEBUG_MESSAGE_##e)
/* Type */
#define OSPF6_MESSAGE_TYPE_UNKNOWN 0x0
#define OSPF6_MESSAGE_TYPE_HELLO 0x1 /* Discover/maintain neighbors */
#define OSPF6_MESSAGE_TYPE_DBDESC 0x2 /* Summarize database contents */
#define OSPF6_MESSAGE_TYPE_LSREQ 0x3 /* Database download request */
#define OSPF6_MESSAGE_TYPE_LSUPDATE 0x4 /* Database update */
#define OSPF6_MESSAGE_TYPE_LSACK 0x5 /* Flooding acknowledgment */
#define OSPF6_MESSAGE_TYPE_ALL 0x6 /* For debug option */
/* OSPFv3 packet header */
#define OSPF6_HEADER_SIZE 16U
struct ospf6_header {
uint8_t version;
uint8_t type;
uint16_t length;
uint32_t router_id;
uint32_t area_id;
uint16_t checksum;
uint8_t instance_id;
uint8_t reserved;
};
#define OSPF6_MESSAGE_END(H) ((caddr_t) (H) + ntohs ((H)->length))
/* Hello */
#define OSPF6_HELLO_MIN_SIZE 20U
struct ospf6_hello {
ifindex_t interface_id;
uint8_t priority;
uint8_t options[3];
uint16_t hello_interval;
uint16_t dead_interval;
uint32_t drouter;
uint32_t bdrouter;
/* Followed by Router-IDs */
};
/* Database Description */
#define OSPF6_DB_DESC_MIN_SIZE 12U
struct ospf6_dbdesc {
uint8_t reserved1;
uint8_t options[3];
uint16_t ifmtu;
uint8_t reserved2;
uint8_t bits;
uint32_t seqnum;
/* Followed by LSA Headers */
};
#define OSPF6_DBDESC_MSBIT (0x01) /* master/slave bit */
#define OSPF6_DBDESC_MBIT (0x02) /* more bit */
#define OSPF6_DBDESC_IBIT (0x04) /* initial bit */
/* Link State Request */
#define OSPF6_LS_REQ_MIN_SIZE 0U
/* It is just a sequence of entries below */
#define OSPF6_LSREQ_LSDESC_FIX_SIZE 12U
struct ospf6_lsreq_entry {
uint16_t reserved; /* Must Be Zero */
uint16_t type; /* LS type */
uint32_t id; /* Link State ID */
uint32_t adv_router; /* Advertising Router */
};
/* Link State Update */
#define OSPF6_LS_UPD_MIN_SIZE 4U
struct ospf6_lsupdate {
uint32_t lsa_number;
/* Followed by LSAs */
};
/* Link State Acknowledgement */
#define OSPF6_LS_ACK_MIN_SIZE 0U
/* It is just a sequence of LSA Headers */
/* Function definition */
extern void ospf6_hello_print(struct ospf6_header *);
extern void ospf6_dbdesc_print(struct ospf6_header *);
extern void ospf6_lsreq_print(struct ospf6_header *);
extern void ospf6_lsupdate_print(struct ospf6_header *);
extern void ospf6_lsack_print(struct ospf6_header *);
extern int ospf6_iobuf_size(unsigned int size);
extern void ospf6_message_terminate(void);
extern int ospf6_receive(struct thread *thread);
extern int ospf6_hello_send(struct thread *thread);
extern int ospf6_dbdesc_send(struct thread *thread);
extern int ospf6_dbdesc_send_newone(struct thread *thread);
extern int ospf6_lsreq_send(struct thread *thread);
extern int ospf6_lsupdate_send_interface(struct thread *thread);
extern int ospf6_lsupdate_send_neighbor(struct thread *thread);
extern int ospf6_lsack_send_interface(struct thread *thread);
extern int ospf6_lsack_send_neighbor(struct thread *thread);
extern int config_write_ospf6_debug_message(struct vty *);
extern void install_element_ospf6_debug_message(void);
#endif /* OSPF6_MESSAGE_H */
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