* 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.
+ * 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 _ZEBRA_OSPF_PACKET_H
#define _ZEBRA_OSPF_PACKET_H
-#define OSPF_HEADER_SIZE 24
-#define OSPF_AUTH_SIMPLE_SIZE 8
-#define OSPF_AUTH_MD5_SIZE 16
+#define OSPF_HEADER_SIZE 24U
+#define OSPF_AUTH_SIMPLE_SIZE 8U
+#define OSPF_AUTH_MD5_SIZE 16U
-#define OSPF_MAX_PACKET_SIZE 65535 /* includes IP Header size. */
-#define OSPF_HELLO_MIN_SIZE 20 /* not including neighbors */
-#define OSPF_DB_DESC_MIN_SIZE 8
-#define OSPF_LS_REQ_MIN_SIZE 0
-#define OSPF_LS_UPD_MIN_SIZE 4
-#define OSPF_LS_ACK_MIN_SIZE 0
+#define OSPF_MAX_PACKET_SIZE 65535U /* includes IP Header size. */
+#define OSPF_HELLO_MIN_SIZE 20U /* not including neighbors */
+#define OSPF_DB_DESC_MIN_SIZE 8U
+#define OSPF_LS_REQ_MIN_SIZE 0U
+#define OSPF_LS_UPD_MIN_SIZE 4U
+#define OSPF_LS_ACK_MIN_SIZE 0U
#define OSPF_MSG_HELLO 1 /* OSPF Hello Message. */
#define OSPF_MSG_DB_DESC 2 /* OSPF Database Descriptoin Message. */
#define OSPF_SEND_PACKET_DIRECT 1
#define OSPF_SEND_PACKET_INDIRECT 2
-
-#ifdef HAVE_NSSA
#define OSPF_SEND_PACKET_LOOP 3
-#endif /* HAVE_NSSA */
#define OSPF_HELLO_REPLY_DELAY 1
-struct ospf_packet
-{
- struct ospf_packet *next;
+/* Return values of functions involved in packet verification, see ospf6d. */
+#define MSG_OK 0
+#define MSG_NG 1
+
+struct ospf_packet {
+ struct ospf_packet *next;
- /* Pointer to data stream. */
- struct stream *s;
+ /* Pointer to data stream. */
+ struct stream *s;
- /* IP destination address. */
- struct in_addr dst;
+ /* IP destination address. */
+ struct in_addr dst;
- /* OSPF packet length. */
- u_int16_t length;
+ /* OSPF packet length. */
+ uint16_t length;
};
/* OSPF packet queue structure. */
-struct ospf_fifo
-{
- unsigned long count;
+struct ospf_fifo {
+ unsigned long count;
- struct ospf_packet *head;
- struct ospf_packet *tail;
+ struct ospf_packet *head;
+ struct ospf_packet *tail;
};
/* OSPF packet header structure. */
-struct ospf_header
-{
- u_char version; /* OSPF Version. */
- u_char type; /* Packet Type. */
- u_int16_t length; /* Packet Length. */
- struct in_addr router_id; /* Router ID. */
- struct in_addr area_id; /* Area ID. */
- u_int16_t checksum; /* Check Sum. */
- u_int16_t auth_type; /* Authentication Type. */
- /* Authentication Data. */
- union
- {
- /* Simple Authentication. */
- u_char auth_data [OSPF_AUTH_SIMPLE_SIZE];
- /* Cryptographic Authentication. */
- struct
- {
- u_int16_t zero; /* Should be 0. */
- u_char key_id; /* Key ID. */
- u_char auth_data_len; /* Auth Data Length. */
- u_int32_t crypt_seqnum; /* Cryptographic Sequence Number. */
- } crypt;
- } u;
+struct ospf_header {
+ uint8_t version; /* OSPF Version. */
+ uint8_t type; /* Packet Type. */
+ uint16_t length; /* Packet Length. */
+ struct in_addr router_id; /* Router ID. */
+ struct in_addr area_id; /* Area ID. */
+ uint16_t checksum; /* Check Sum. */
+ uint16_t auth_type; /* Authentication Type. */
+ /* Authentication Data. */
+ union {
+ /* Simple Authentication. */
+ uint8_t auth_data[OSPF_AUTH_SIMPLE_SIZE];
+ /* Cryptographic Authentication. */
+ struct {
+ uint16_t zero; /* Should be 0. */
+ uint8_t key_id; /* Key ID. */
+ uint8_t auth_data_len; /* Auth Data Length. */
+ uint32_t crypt_seqnum; /* Cryptographic Sequence
+ Number. */
+ } crypt;
+ } u;
};
/* OSPF Hello body format. */
-struct ospf_hello
-{
- struct in_addr network_mask;
- u_int16_t hello_interval;
- u_char options;
- u_char priority;
- u_int32_t dead_interval;
- struct in_addr d_router;
- struct in_addr bd_router;
- struct in_addr neighbors[1];
+struct ospf_hello {
+ struct in_addr network_mask;
+ uint16_t hello_interval;
+ uint8_t options;
+ uint8_t priority;
+ uint32_t dead_interval;
+ struct in_addr d_router;
+ struct in_addr bd_router;
+ struct in_addr neighbors[1];
};
/* OSPF Database Description body format. */
-struct ospf_db_desc
-{
- u_int16_t mtu;
- u_char options;
- u_char flags;
- u_int32_t dd_seqnum;
+struct ospf_db_desc {
+ uint16_t mtu;
+ uint8_t options;
+ uint8_t flags;
+ uint32_t dd_seqnum;
};
+struct ospf_ls_update {
+ uint32_t num_lsas;
+};
/* Macros. */
+/* XXX Perhaps obsolete; function in ospf_packet.c */
#define OSPF_PACKET_MAX(oi) ospf_packet_max (oi)
-/*
-#define OSPF_PACKET_MAX(oi) (((oi)->ifp->mtu - ((oi)->auth_md5 ? OSPF_AUTH_MD5_SIZE : 0)) - 88)
-*/
#define OSPF_OUTPUT_PNT(S) ((S)->data + (S)->putp)
#define OSPF_OUTPUT_LENGTH(S) ((S)->endp)
#define IS_SET_DD_ALL(X) ((X) & OSPF_DD_FLAG_ALL)
/* Prototypes. */
-void ospf_output_forward (struct stream *, int);
-struct ospf_packet *ospf_packet_new (size_t);
-void ospf_packet_free (struct ospf_packet *);
-struct ospf_fifo *ospf_fifo_new ();
-void ospf_fifo_push (struct ospf_fifo *, struct ospf_packet *);
-struct ospf_packet *ospf_fifo_pop (struct ospf_fifo *);
-struct ospf_packet *ospf_fifo_head (struct ospf_fifo *);
-void ospf_fifo_flush (struct ospf_fifo *);
-void ospf_fifo_free (struct ospf_fifo *);
-void ospf_packet_add (struct ospf_interface *, struct ospf_packet *);
-void ospf_packet_delete (struct ospf_interface *);
-struct stream *ospf_stream_dup (struct stream *);
-struct ospf_packet *ospf_packet_dup (struct ospf_packet *);
-
-int ospf_read (struct thread *);
-void ospf_hello_send (struct ospf_interface *);
-void ospf_db_desc_send (struct ospf_neighbor *);
-void ospf_db_desc_resend (struct ospf_neighbor *);
-void ospf_ls_req_send (struct ospf_neighbor *);
-void ospf_ls_upd_send_lsa (struct ospf_neighbor *, struct ospf_lsa *, int);
-void ospf_ls_upd_send (struct ospf_neighbor *, list, int);
-void ospf_ls_ack_send (struct ospf_neighbor *, struct ospf_lsa *);
-void ospf_ls_ack_send_delayed (struct ospf_interface *);
-void ospf_ls_retransmit (struct ospf_interface *, struct ospf_lsa *);
-void ospf_ls_req_event (struct ospf_neighbor *);
-
-int ospf_ls_upd_timer (struct thread *);
-int ospf_ls_ack_timer (struct thread *);
-int ospf_poll_timer (struct thread *);
-int ospf_hello_reply_timer (struct thread *);
-void ospf_hello_send_sub (struct ospf_interface *, struct in_addr *);
+extern void ospf_output_forward(struct stream *, int);
+extern struct ospf_packet *ospf_packet_new(size_t);
+extern void ospf_packet_free(struct ospf_packet *);
+extern struct ospf_fifo *ospf_fifo_new(void);
+extern void ospf_fifo_push(struct ospf_fifo *, struct ospf_packet *);
+extern struct ospf_packet *ospf_fifo_pop(struct ospf_fifo *);
+extern struct ospf_packet *ospf_fifo_head(struct ospf_fifo *);
+extern void ospf_fifo_flush(struct ospf_fifo *);
+extern void ospf_fifo_free(struct ospf_fifo *);
+extern void ospf_packet_add(struct ospf_interface *, struct ospf_packet *);
+extern void ospf_packet_delete(struct ospf_interface *);
+extern struct stream *ospf_stream_dup(struct stream *);
+extern struct ospf_packet *ospf_packet_dup(struct ospf_packet *);
+
+extern int ospf_read(struct thread *);
+extern void ospf_hello_send(struct ospf_interface *);
+extern void ospf_db_desc_send(struct ospf_neighbor *);
+extern void ospf_db_desc_resend(struct ospf_neighbor *);
+extern void ospf_ls_req_send(struct ospf_neighbor *);
+extern void ospf_ls_upd_send_lsa(struct ospf_neighbor *, struct ospf_lsa *,
+ int);
+extern void ospf_ls_upd_send(struct ospf_neighbor *, struct list *, int, int);
+extern void ospf_ls_ack_send(struct ospf_neighbor *, struct ospf_lsa *);
+extern void ospf_ls_ack_send_delayed(struct ospf_interface *);
+extern void ospf_ls_retransmit(struct ospf_interface *, struct ospf_lsa *);
+extern void ospf_ls_req_event(struct ospf_neighbor *);
+
+extern int ospf_ls_upd_timer(struct thread *);
+extern int ospf_ls_ack_timer(struct thread *);
+extern int ospf_poll_timer(struct thread *);
+extern int ospf_hello_reply_timer(struct thread *);
+
+extern const struct message ospf_packet_type_str[];
+extern const size_t ospf_packet_type_str_max;
+
+extern void ospf_proactively_arp(struct ospf_neighbor *);
#endif /* _ZEBRA_OSPF_PACKET_H */
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