diff options
Diffstat (limited to 'ospf6d/ospf6_message.h')
| -rw-r--r-- | ospf6d/ospf6_message.h | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/ospf6d/ospf6_message.h b/ospf6d/ospf6_message.h new file mode 100644 index 0000000..2b25b07 --- /dev/null +++ b/ospf6d/ospf6_message.h @@ -0,0 +1,175 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 1999-2003 Yasuhiro Ohara + */ + +#ifndef OSPF6_MESSAGE_H +#define OSPF6_MESSAGE_H + +#define OSPF6_MESSAGE_BUFSIZ 4096 + +/* Debug option */ +extern unsigned char conf_debug_ospf6_message[]; + +#define OSPF6_ACTION_SEND 0x01 +#define OSPF6_ACTION_RECV 0x02 +#define OSPF6_DEBUG_MESSAGE_SEND 0x01 +#define OSPF6_DEBUG_MESSAGE_RECV 0x02 +#define OSPF6_DEBUG_MESSAGE_SEND_HDR 0x04 +#define OSPF6_DEBUG_MESSAGE_RECV_HDR 0x08 +#define OSPF6_DEBUG_MESSAGE_SEND_BOTH \ + OSPF6_DEBUG_MESSAGE_SEND | OSPF6_DEBUG_MESSAGE_SEND_HDR +#define OSPF6_DEBUG_MESSAGE_RECV_BOTH \ + OSPF6_DEBUG_MESSAGE_RECV | OSPF6_DEBUG_MESSAGE_RECV_HDR + +#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) \ + (((OSPF6_DEBUG_MESSAGE_##e) == OSPF6_DEBUG_MESSAGE_RECV_HDR) \ + ? (conf_debug_ospf6_message[t] \ + & (OSPF6_DEBUG_MESSAGE_RECV_BOTH)) \ + : (((OSPF6_DEBUG_MESSAGE_##e) == OSPF6_DEBUG_MESSAGE_SEND_HDR) \ + ? (conf_debug_ospf6_message[t] \ + & (OSPF6_DEBUG_MESSAGE_SEND_BOTH)) \ + : (conf_debug_ospf6_message[t] \ + & (OSPF6_DEBUG_MESSAGE_##e)))) + +#define IS_OSPF6_DEBUG_MESSAGE_ENABLED(type, e) \ + (conf_debug_ospf6_message[type] & (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 */ +#define OSPF6_MESSAGE_TYPE_MAX 0x6 /* same as OSPF6_MESSAGE_TYPE_ALL */ + +struct ospf6_packet { + struct ospf6_packet *next; + + /* Pointer to data stream. */ + struct stream *s; + + /* IP destination address. */ + struct in6_addr dst; + + /* OSPF6 packet length. */ + uint16_t length; +}; + +/* OSPF packet queue structure. */ +struct ospf6_fifo { + unsigned long count; + + struct ospf6_packet *head; + struct ospf6_packet *tail; +}; + +/* OSPFv3 packet header */ +#define OSPF6_HEADER_SIZE 16U +struct ospf6_header { + uint8_t version; + uint8_t type; + uint16_t length; + in_addr_t router_id; + in_addr_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; + in_addr_t drouter; + in_addr_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 */ + in_addr_t id; /* Link State ID */ + in_addr_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 */ +}; + +/* LLS is not supported, but used to derive + * offset of Auth_trailer + */ +struct ospf6_lls_hdr { + uint16_t checksum; + uint16_t length; +}; + +/* 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 *, int action); +extern void ospf6_dbdesc_print(struct ospf6_header *, int action); +extern void ospf6_lsreq_print(struct ospf6_header *, int action); +extern void ospf6_lsupdate_print(struct ospf6_header *, int action); +extern void ospf6_lsack_print(struct ospf6_header *, int action); + +extern struct ospf6_fifo *ospf6_fifo_new(void); +extern void ospf6_fifo_flush(struct ospf6_fifo *fifo); +extern void ospf6_fifo_free(struct ospf6_fifo *fifo); + +extern int ospf6_iobuf_size(unsigned int size); +extern void ospf6_message_terminate(void); +extern void ospf6_receive(struct event *thread); + +extern void ospf6_hello_send(struct event *thread); +extern void ospf6_dbdesc_send(struct event *thread); +extern void ospf6_dbdesc_send_newone(struct event *thread); +extern void ospf6_lsreq_send(struct event *thread); +extern void ospf6_lsupdate_send_interface(struct event *thread); +extern void ospf6_lsupdate_send_neighbor(struct event *thread); +extern void ospf6_lsack_send_interface(struct event *thread); +extern void ospf6_lsack_send_neighbor(struct event *thread); + +extern int config_write_ospf6_debug_message(struct vty *); +extern void install_element_ospf6_debug_message(void); +extern const char *ospf6_message_type(int type); +#endif /* OSPF6_MESSAGE_H */ |