Ospf6d merge from Zebra repository with added privs stuff and merged
zclient changes.
diff --git a/ospf6d/ospf6_message.c b/ospf6d/ospf6_message.c
index 0e74b65..21b799e 100644
--- a/ospf6d/ospf6_message.c
+++ b/ospf6d/ospf6_message.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 1999 Yasuhiro Ohara
+ * Copyright (C) 2003 Yasuhiro Ohara
*
* This file is part of GNU Zebra.
*
@@ -19,1954 +19,2056 @@
* Boston, MA 02111-1307, USA.
*/
+#include <zebra.h>
+
+#include "log.h"
+#include "vty.h"
+#include "command.h"
+#include "thread.h"
+#include "linklist.h"
+
#include "ospf6d.h"
+#include "ospf6_proto.h"
+#include "ospf6_lsa.h"
+#include "ospf6_lsdb.h"
+#include "ospf6_network.h"
+#include "ospf6_message.h"
-int
-is_ospf6_message_dump (u_char type)
+#include "ospf6_top.h"
+#include "ospf6_area.h"
+#include "ospf6_neighbor.h"
+#include "ospf6_interface.h"
+
+#include "ospf6_flood.h"
+
+unsigned char conf_debug_ospf6_message[6] = {0x03, 0, 0, 0, 0, 0};
+char *ospf6_message_type_str[] =
+ { "Unknown", "Hello", "DbDesc", "LSReq", "LSUpdate", "LSAck" };
+
+/* print functions */
+
+static void
+ospf6_header_print (struct ospf6_header *oh)
{
- if (type > OSPF6_MESSAGE_TYPE_LSACK)
- type = OSPF6_MESSAGE_TYPE_UNKNOWN;
+ char router_id[16], area_id[16];
+ inet_ntop (AF_INET, &oh->router_id, router_id, sizeof (router_id));
+ inet_ntop (AF_INET, &oh->area_id, area_id, sizeof (area_id));
- switch (type)
- {
- case OSPF6_MESSAGE_TYPE_UNKNOWN:
- return 1;
- break;
- case OSPF6_MESSAGE_TYPE_HELLO:
- if (IS_OSPF6_DUMP_HELLO)
- return 1;
- break;
- case OSPF6_MESSAGE_TYPE_DBDESC:
- if (IS_OSPF6_DUMP_DBDESC)
- return 1;
- break;
- case OSPF6_MESSAGE_TYPE_LSREQ:
- if (IS_OSPF6_DUMP_LSREQ)
- return 1;
- break;
- case OSPF6_MESSAGE_TYPE_LSUPDATE:
- if (IS_OSPF6_DUMP_LSUPDATE)
- return 1;
- break;
- case OSPF6_MESSAGE_TYPE_LSACK:
- if (IS_OSPF6_DUMP_LSACK)
- return 1;
- break;
- default:
- break;
- }
- return 0;
+ zlog_info (" OSPFv%d Type:%d Len:%hu Router-ID:%s",
+ oh->version, oh->type, ntohs (oh->length), router_id);
+ zlog_info (" Area-ID:%s Cksum:%hx Instance-ID:%d",
+ area_id, ntohs (oh->checksum), oh->instance_id);
}
-#define IS_OSPF6_DUMP_MESSAGE(x) (is_ospf6_message_dump(x))
-
-char *ospf6_message_type_string[] =
-{
- "Unknown", "Hello", "DbDesc", "LSReq", "LSUpdate", "LSAck", NULL
-};
void
-ospf6_message_log_lsa_header (struct ospf6_lsa_header *lsa_header)
+ospf6_hello_print (struct ospf6_header *oh)
{
- char buf_id[16], buf_router[16], typebuf[32];
-
- inet_ntop (AF_INET, &lsa_header->advrtr, buf_router, sizeof (buf_router));
- inet_ntop (AF_INET, &lsa_header->ls_id, buf_id, sizeof (buf_id));
- zlog_info (" [%s ID=%s Adv=%s]",
- ospf6_lsa_type_string (lsa_header->type, typebuf,
- sizeof (typebuf)),
- buf_id, buf_router);
- zlog_info (" Age=%hu SeqNum=%#lx Cksum=%#hx Len=%hu",
- ntohs (lsa_header->age), (u_long)ntohl (lsa_header->seqnum),
- ntohs (lsa_header->checksum), ntohs (lsa_header->length));
-}
-
-static void
-ospf6_message_log_unknown (struct iovec *message)
-{
- zlog_info ("Message: Unknown");
-}
-
-static void
-ospf6_message_log_hello (struct iovec *message)
-{
- struct ospf6_header *ospf6_header;
- u_int16_t length_left;
struct ospf6_hello *hello;
- char dr_str[16], bdr_str[16];
- char *start, *end, *current;
+ char options[16];
+ char drouter[16], bdrouter[16], neighbor[16];
+ char *p;
- /* calculate length */
- ospf6_header = (struct ospf6_header *) message[0].iov_base;
- length_left = ntohs (ospf6_header->len) - sizeof (struct ospf6_header);
- length_left = (length_left < iov_totallen (message) - sizeof (struct ospf6_header) ?
- length_left : iov_totallen (message) - sizeof (struct ospf6_header));
+ ospf6_header_print (oh);
+ assert (oh->type == OSPF6_MESSAGE_TYPE_HELLO);
- hello = (struct ospf6_hello *) message[1].iov_base;
+ hello = (struct ospf6_hello *)
+ ((caddr_t) oh + sizeof (struct ospf6_header));
- inet_ntop (AF_INET, &hello->dr, dr_str, sizeof (dr_str));
- inet_ntop (AF_INET, &hello->bdr, bdr_str, sizeof (bdr_str));
+ inet_ntop (AF_INET, &hello->drouter, drouter, sizeof (drouter));
+ inet_ntop (AF_INET, &hello->bdrouter, bdrouter, sizeof (bdrouter));
+ ospf6_options_printbuf (hello->options, options, sizeof (options));
- zlog_info (" IFID:%ld Priority:%d Option:%s",
- (u_long)ntohl (hello->interface_id), hello->rtr_pri, "xxx");
- zlog_info (" HelloInterval:%hu Deadinterval:%hu",
- ntohs (hello->hello_interval),
- ntohs (hello->router_dead_interval));
- zlog_info (" DR:%s BDR:%s", dr_str, bdr_str);
+ zlog_info (" I/F-Id:%ld Priority:%d Option:%s",
+ (u_long) ntohl (hello->interface_id), hello->priority, options);
+ zlog_info (" HelloInterval:%hu DeadInterval:%hu",
+ ntohs (hello->hello_interval), ntohs (hello->dead_interval));
+ zlog_info (" DR:%s BDR:%s", drouter, bdrouter);
- start = (char *) (hello + 1);
- if (start >= (char *) message[1].iov_base + message[1].iov_len)
- start = message[2].iov_base;
- end = (char *) start + (length_left - sizeof (struct ospf6_hello));
-
- for (current = start; current < end; current += sizeof (u_int32_t))
+ for (p = (char *) ((caddr_t) hello + sizeof (struct ospf6_hello));
+ p + sizeof (u_int32_t) <= OSPF6_MESSAGE_END (oh);
+ p += sizeof (u_int32_t))
{
- char neighbor[16];
- inet_ntop (AF_INET, current, neighbor, sizeof (neighbor));
+ inet_ntop (AF_INET, (void *) p, neighbor, sizeof (neighbor));
zlog_info (" Neighbor: %s", neighbor);
}
+
+ if (p != OSPF6_MESSAGE_END (oh))
+ zlog_info ("Trailing garbage exists");
}
-static void
-ospf6_message_log_dbdesc (struct iovec *message)
+void
+ospf6_dbdesc_print (struct ospf6_header *oh)
{
- struct ospf6_header *ospf6_header;
- u_int16_t length_left;
struct ospf6_dbdesc *dbdesc;
- int i;
- char buffer[16];
- struct ospf6_lsa_header *lsa_header;
+ char options[16];
+ char *p;
- /* calculate length */
- ospf6_header = (struct ospf6_header *) message[0].iov_base;
- length_left = ntohs (ospf6_header->len) - sizeof (struct ospf6_header);
- length_left = (length_left < iov_totallen (message) - sizeof (struct ospf6_header) ?
- length_left : iov_totallen (message) - sizeof (struct ospf6_header));
+ ospf6_header_print (oh);
+ assert (oh->type == OSPF6_MESSAGE_TYPE_DBDESC);
- dbdesc = (struct ospf6_dbdesc *) message[1].iov_base;
- ospf6_options_string (dbdesc->options, buffer, sizeof (buffer));
+ dbdesc = (struct ospf6_dbdesc *)
+ ((caddr_t) oh + sizeof (struct ospf6_header));
- zlog_info (" Option:%s IFMTU:%hu", buffer, ntohs (dbdesc->ifmtu));
- zlog_info (" Bits:%s%s%s SeqNum:%#lx",
- (DD_IS_IBIT_SET (dbdesc->bits) ? "I" : "-"),
- (DD_IS_MBIT_SET (dbdesc->bits) ? "M" : "-"),
- (DD_IS_MSBIT_SET (dbdesc->bits) ? "m" : "s"),
- (u_long)ntohl (dbdesc->seqnum));
+ ospf6_options_printbuf (dbdesc->options, options, sizeof (options));
- for (lsa_header = (struct ospf6_lsa_header *) (dbdesc + 1);
- (char *)(lsa_header + 1) <= (char *)(message[1].iov_base + message[1].iov_len) &&
- (char *)(lsa_header + 1) <= (char *)dbdesc + length_left;
- lsa_header++)
- ospf6_message_log_lsa_header (lsa_header);
+ zlog_info (" MBZ: %#x Option: %s IfMTU: %hu",
+ dbdesc->reserved1, options, ntohs (dbdesc->ifmtu));
+ zlog_info (" MBZ: %#x Bits: %s%s%s SeqNum: %#lx",
+ dbdesc->reserved2,
+ (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_IBIT) ? "I" : "-"),
+ (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MBIT) ? "M" : "-"),
+ (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MSBIT) ? "m" : "s"),
+ (u_long) ntohl (dbdesc->seqnum));
- length_left -= message[1].iov_len;
- for (i = 2; message[i].iov_base; i++)
- {
- for (lsa_header = (struct ospf6_lsa_header *) message[i].iov_base;
- (char *)(lsa_header + 1) <= (char *) (message[i].iov_base +
- message[i].iov_len) &&
- (char *)(lsa_header + 1) <= (char *) (message[i].iov_base + length_left);
- lsa_header++)
- ospf6_message_log_lsa_header (lsa_header);
- length_left -= message[i].iov_len;
- }
+ for (p = (char *) ((caddr_t) dbdesc + sizeof (struct ospf6_dbdesc));
+ p + sizeof (struct ospf6_lsa_header) <= OSPF6_MESSAGE_END (oh);
+ p += sizeof (struct ospf6_lsa_header))
+ ospf6_lsa_header_print_raw ((struct ospf6_lsa_header *) p);
+
+ if (p != OSPF6_MESSAGE_END (oh))
+ zlog_info ("Trailing garbage exists");
}
-static void
-ospf6_message_log_lsreq (struct iovec *message)
+void
+ospf6_lsreq_print (struct ospf6_header *oh)
{
- struct ospf6_header *ospf6_header;
- u_int16_t length_left;
- int i;
- struct ospf6_lsreq *lsreq;
- char buf_router[16], buf_id[16], buf_type[16];
+ char id[16], adv_router[16];
+ char *p;
- /* calculate length */
- ospf6_header = (struct ospf6_header *) message[0].iov_base;
- length_left = ntohs (ospf6_header->len) - sizeof (struct ospf6_header);
- length_left = (length_left < iov_totallen (message) - sizeof (struct ospf6_header) ?
- length_left : iov_totallen (message) - sizeof (struct ospf6_header));
+ ospf6_header_print (oh);
+ assert (oh->type == OSPF6_MESSAGE_TYPE_LSREQ);
- for (i = 1; message[i].iov_base; i++)
+ for (p = (char *) ((caddr_t) oh + sizeof (struct ospf6_header));
+ p + sizeof (struct ospf6_lsreq_entry) <= OSPF6_MESSAGE_END (oh);
+ p += sizeof (struct ospf6_lsreq_entry))
{
- for (lsreq = (struct ospf6_lsreq *) message[i].iov_base;
- (char *)(lsreq + 1) <= (char *) (message[i].iov_base + message[i].iov_len) &&
- (char *)(lsreq + 1) <= (char *) (message[i].iov_base + length_left);
- lsreq++)
- {
- inet_ntop (AF_INET, &lsreq->adv_router, buf_router, sizeof (buf_router));
- inet_ntop (AF_INET, &lsreq->id, buf_id, sizeof (buf_id));
- zlog_info (" [%s ID=%s Adv=%s]",
- ospf6_lsa_type_string (lsreq->type, buf_type,
- sizeof (buf_type)),
- buf_id, buf_router);
- }
- length_left -= message[i].iov_len;
+ struct ospf6_lsreq_entry *e = (struct ospf6_lsreq_entry *) p;
+ inet_ntop (AF_INET, &e->adv_router, adv_router, sizeof (adv_router));
+ inet_ntop (AF_INET, &e->id, id, sizeof (id));
+ zlog_info (" [%s Id:%s Adv:%s]",
+ OSPF6_LSTYPE_NAME (e->type), id, adv_router);
}
+
+ if (p != OSPF6_MESSAGE_END (oh))
+ zlog_info ("Trailing garbage exists");
}
-static void
-ospf6_message_log_lsupdate (struct iovec *message)
+void
+ospf6_lsupdate_print (struct ospf6_header *oh)
{
- struct ospf6_header *ospf6_header;
- u_int16_t length_left;
- int i, lsanum;
struct ospf6_lsupdate *lsupdate;
- struct ospf6_lsa_header *lsa_header;
+ u_long num;
+ char *p;
- /* calculate length */
- ospf6_header = (struct ospf6_header *) message[0].iov_base;
- length_left = ntohs (ospf6_header->len) - sizeof (struct ospf6_header);
- length_left = (length_left < iov_totallen (message) - sizeof (struct ospf6_header) ?
- length_left : iov_totallen (message) - sizeof (struct ospf6_header));
+ ospf6_header_print (oh);
+ assert (oh->type == OSPF6_MESSAGE_TYPE_LSUPDATE);
- lsupdate = (struct ospf6_lsupdate *) message[1].iov_base;
- lsanum = ntohl (lsupdate->lsupdate_num);
+ lsupdate = (struct ospf6_lsupdate *)
+ ((caddr_t) oh + sizeof (struct ospf6_header));
- zlog_info (" Number of LSA: #%d", lsanum);
+ num = ntohl (lsupdate->lsa_number);
+ zlog_info (" Number of LSA: %ld", num);
- for (lsa_header = (struct ospf6_lsa_header *) (lsupdate + 1);
- (char *)lsa_header < (char *)(message[1].iov_base + message[1].iov_len) &&
- (char *)lsa_header < (char *)(message[1].iov_base + length_left);
- lsa_header = OSPF6_LSA_NEXT (lsa_header))
- ospf6_message_log_lsa_header (lsa_header);
- length_left -= message[1].iov_len;
-
- for (i = 2; message[i].iov_base; i++)
+ for (p = (char *) ((caddr_t) lsupdate + sizeof (struct ospf6_lsupdate));
+ p < OSPF6_MESSAGE_END (oh) &&
+ p + OSPF6_LSA_SIZE (p) <= OSPF6_MESSAGE_END (oh);
+ p += OSPF6_LSA_SIZE (p))
{
+ ospf6_lsa_header_print_raw ((struct ospf6_lsa_header *) p);
+ if (OSPF6_LSA_SIZE (p) < sizeof (struct ospf6_lsa_header))
+ {
+ zlog_info (" Malformed LSA length, quit printing");
+ break;
+ }
+ }
- for (lsa_header = (struct ospf6_lsa_header *) message[i].iov_base;
- (char *)lsa_header < (char *) (message[i].iov_base + message[i].iov_len) &&
- (char *)lsa_header < (char *) (message[i].iov_base + length_left);
- lsa_header = OSPF6_LSA_NEXT (lsa_header))
- ospf6_message_log_lsa_header (lsa_header);
- length_left -= message[i].iov_len;
+ if (p != OSPF6_MESSAGE_END (oh))
+ {
+ char buf[32];
+
+ int num = 0;
+ memset (buf, 0, sizeof (buf));
+
+ zlog_info (" Trailing garbage exists");
+ while (p < OSPF6_MESSAGE_END (oh))
+ {
+ snprintf (buf, sizeof (buf), "%s %2x", buf, *p++);
+ num++;
+ if (num == 8)
+ {
+ zlog_info (" %s", buf);
+ memset (buf, 0, sizeof (buf));
+ num = 0;
+ }
+ }
+ if (num)
+ zlog_info (" %s", buf);
}
}
-static void
-ospf6_message_log_lsack (struct iovec *message)
+void
+ospf6_lsack_print (struct ospf6_header *oh)
{
- struct ospf6_header *ospf6_header;
- u_int16_t length_left;
- struct ospf6_lsa_header *lsa_header;
- int i;
+ char *p;
- /* calculate length */
- ospf6_header = (struct ospf6_header *) message[0].iov_base;
- length_left = ntohs (ospf6_header->len) - sizeof (struct ospf6_header);
- length_left = (length_left < iov_totallen (message) - sizeof (struct ospf6_header) ?
- length_left : iov_totallen (message) - sizeof (struct ospf6_header));
+ ospf6_header_print (oh);
+ assert (oh->type == OSPF6_MESSAGE_TYPE_LSACK);
- for (i = 1; message[i].iov_base; i++)
- {
- for (lsa_header = (struct ospf6_lsa_header *) message[i].iov_base;
- (char *)(lsa_header + 1) <= (char *) (message[i].iov_base +
- message[i].iov_len) &&
- (char *)(lsa_header + 1) <= (char *) (message[i].iov_base + length_left);
- lsa_header++)
- ospf6_message_log_lsa_header (lsa_header);
- length_left -= message[i].iov_len;
- }
+ for (p = (char *) ((caddr_t) oh + sizeof (struct ospf6_header));
+ p + sizeof (struct ospf6_lsa_header) <= OSPF6_MESSAGE_END (oh);
+ p += sizeof (struct ospf6_lsa_header))
+ ospf6_lsa_header_print_raw ((struct ospf6_lsa_header *) p);
+
+ if (p != OSPF6_MESSAGE_END (oh))
+ zlog_info ("Trailing garbage exists");
}
-struct {
- void (*message_log) (struct iovec *);
-} ospf6_message_log_body [] =
+/* Receive function */
+#define MSG_OK 0
+#define MSG_NG 1
+static int
+ospf6_header_examin (struct in6_addr *src, struct in6_addr *dst,
+ struct ospf6_interface *oi, struct ospf6_header *oh)
{
- {ospf6_message_log_unknown},
- {ospf6_message_log_hello},
- {ospf6_message_log_dbdesc},
- {ospf6_message_log_lsreq},
- {ospf6_message_log_lsupdate},
- {ospf6_message_log_lsack},
-};
-
-static void
-ospf6_message_log (struct iovec *message)
-{
- struct ospf6_header *o6h;
- char router_id[16], area_id[16];
u_char type;
+ type = OSPF6_MESSAGE_TYPE_CANONICAL (oh->type);
- assert (message[0].iov_len == sizeof (struct ospf6_header));
- o6h = (struct ospf6_header *) message[0].iov_base;
-
- inet_ntop (AF_INET, &o6h->router_id, router_id, sizeof (router_id));
- inet_ntop (AF_INET, &o6h->area_id, area_id, sizeof (area_id));
-
- zlog_info (" OSPFv%d Type:%d Len:%hu RouterID:%s",
- o6h->version, o6h->type, ntohs (o6h->len), router_id);
- zlog_info (" AreaID:%s Cksum:%hx InstanceID:%d",
- area_id, ntohs (o6h->cksum), o6h->instance_id);
-
- type = (OSPF6_MESSAGE_TYPE_UNKNOWN < o6h->type &&
- o6h->type <= OSPF6_MESSAGE_TYPE_LSACK ?
- o6h->type : OSPF6_MESSAGE_TYPE_UNKNOWN);
- (* ospf6_message_log_body[type].message_log) (&message[0]);
-}
-
-int
-ospf6_opt_is_mismatch (unsigned char opt, char *options1, char *options2)
-{
- return (OSPF6_OPT_ISSET (options1, opt) ^ OSPF6_OPT_ISSET (options2, opt));
-}
-
-
-void
-ospf6_process_unknown (struct iovec *message,
- struct in6_addr *src,
- struct in6_addr *dst,
- struct ospf6_interface *o6i,
- u_int32_t router_id)
-{
- zlog_warn ("unknown message type, drop");
-}
-
-void
-ospf6_process_hello (struct iovec *message,
- struct in6_addr *src,
- struct in6_addr *dst,
- struct ospf6_interface *o6i,
- u_int32_t router_id)
-{
- struct ospf6_header *ospf6_header;
- u_int16_t length;
- struct ospf6_hello *hello;
- char changes = 0;
-#define CHANGE_RTRPRI (1 << 0)
-#define CHANGE_DR (1 << 1)
-#define CHANGE_BDR (1 << 2)
- int twoway = 0, backupseen = 0, nbchange = 0;
- u_int32_t *router_id_ptr;
- int i, seenrtrnum = 0, router_id_space = 0;
- char strbuf[64];
- struct ospf6_neighbor *o6n = NULL;
-
- /* assert interface */
- assert (o6i);
-
- /* caluculate length */
- ospf6_header = (struct ospf6_header *) message[0].iov_base;
- length = ntohs (ospf6_header->len) - sizeof (struct ospf6_header);
- length = (length < message[1].iov_len ? length : message[1].iov_len);
-
- /* set hello pointer */
- hello = (struct ospf6_hello *) message[1].iov_base;
-
- /* find neighbor. if cannot be found, create */
- o6n = ospf6_neighbor_lookup (router_id, o6i);
- if (!o6n)
+ /* version check */
+ if (oh->version != OSPFV3_VERSION)
{
- o6n = ospf6_neighbor_create (router_id, o6i);
- o6n->ifid = ntohl (hello->interface_id);
- o6n->prevdr = o6n->dr = hello->dr;
- o6n->prevbdr = o6n->bdr = hello->bdr;
- o6n->priority = hello->rtr_pri;
- memcpy (&o6n->hisaddr, src, sizeof (struct in6_addr));
+ if (IS_OSPF6_DEBUG_MESSAGE (type, RECV))
+ zlog_info ("Message with unknown version");
+ return MSG_NG;
}
+ /* Area-ID check */
+ if (oh->area_id != oi->area->area_id)
+ {
+ if (oh->area_id == 0)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (type, RECV))
+ zlog_info ("Message may be via Virtual Link: not supported");
+ return MSG_NG;
+ }
+
+ if (IS_OSPF6_DEBUG_MESSAGE (type, RECV))
+ zlog_info ("Area-ID mismatch");
+ return MSG_NG;
+ }
+
+ /* Instance-ID check */
+ if (oh->instance_id != oi->instance_id)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (type, RECV))
+ zlog_info ("Instance-ID mismatch");
+ return MSG_NG;
+ }
+
+ /* Router-ID check */
+ if (oh->router_id == oi->area->ospf6->router_id)
+ zlog_warn ("Detect duplicate Router-ID");
+
+ return MSG_OK;
+}
+
+void
+ospf6_hello_recv (struct in6_addr *src, struct in6_addr *dst,
+ struct ospf6_interface *oi, struct ospf6_header *oh)
+{
+ struct ospf6_hello *hello;
+ struct ospf6_neighbor *on;
+ char *p;
+ int twoway = 0;
+ int neighborchange = 0;
+ int backupseen = 0;
+
+ if (ospf6_header_examin (src, dst, oi, oh) != MSG_OK)
+ return;
+
+ hello = (struct ospf6_hello *)
+ ((caddr_t) oh + sizeof (struct ospf6_header));
+
/* HelloInterval check */
- if (ntohs (hello->hello_interval) != o6i->hello_interval)
+ if (ntohs (hello->hello_interval) != oi->hello_interval)
{
- zlog_warn ("HelloInterval mismatch with %s", o6n->str);
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("HelloInterval mismatch");
return;
}
/* RouterDeadInterval check */
- if (ntohs (hello->router_dead_interval)
- != o6i->dead_interval)
+ if (ntohs (hello->dead_interval) != oi->dead_interval)
{
- zlog_warn ("RouterDeadInterval mismatch with %s", o6n->str);
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("RouterDeadInterval mismatch");
return;
}
- /* check options */
- /* Ebit */
- if (ospf6_opt_is_mismatch (OSPF6_OPT_E, hello->options, o6i->area->options))
+ /* E-bit check */
+ if (OSPF6_OPT_ISSET (hello->options, OSPF6_OPT_E) !=
+ OSPF6_OPT_ISSET (oi->area->options, OSPF6_OPT_E))
{
- zlog_warn ("Ebit mismatch with %s", o6n->str);
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("E-bit mismatch");
return;
}
- /* RouterPriority set */
- if (o6n->priority != hello->rtr_pri)
+ /* Find neighbor, create if not exist */
+ on = ospf6_neighbor_lookup (oh->router_id, oi);
+ if (on == NULL)
{
- o6n->priority = hello->rtr_pri;
- if (IS_OSPF6_DUMP_HELLO)
- zlog_info ("%s: RouterPriority changed", o6n->str);
- changes |= CHANGE_RTRPRI;
- }
-
- /* DR set */
- if (o6n->dr != hello->dr)
- {
- /* save previous dr, set current */
- o6n->prevdr = o6n->dr;
- o6n->dr = hello->dr;
- inet_ntop (AF_INET, &o6n->dr, strbuf, sizeof (strbuf));
- if (IS_OSPF6_DUMP_HELLO)
- zlog_info ("%s declare %s as DR", o6n->str, strbuf);
- changes |= CHANGE_DR;
- }
-
- /* BDR set */
- if (o6n->bdr != hello->bdr)
- {
- /* save previous bdr, set current */
- o6n->prevbdr = o6n->bdr;
- o6n->bdr = hello->bdr;
- inet_ntop (AF_INET, &o6n->bdr, strbuf, sizeof (strbuf));
- if (IS_OSPF6_DUMP_HELLO)
- zlog_info ("%s declare %s as BDR", o6n->str, strbuf);
- changes |= CHANGE_BDR;
+ on = ospf6_neighbor_create (oh->router_id, oi);
+ on->prev_drouter = on->drouter = hello->drouter;
+ on->prev_bdrouter = on->bdrouter = hello->bdrouter;
+ on->priority = hello->priority;
+ on->ifindex = ntohl (hello->interface_id);
+ memcpy (&on->linklocal_addr, src, sizeof (struct in6_addr));
}
/* TwoWay check */
- router_id_space = length - sizeof (struct ospf6_hello);
- seenrtrnum = router_id_space / sizeof (u_int32_t);
- router_id_ptr = (u_int32_t *) (hello + 1);
- for (i = 0; i < seenrtrnum; i++)
+ for (p = (char *) ((caddr_t) hello + sizeof (struct ospf6_hello));
+ p + sizeof (u_int32_t) <= OSPF6_MESSAGE_END (oh);
+ p += sizeof (u_int32_t))
{
- if (*router_id_ptr == o6i->area->ospf6->router_id)
+ u_int32_t *router_id = (u_int32_t *) p;
+
+ if (*router_id == oi->area->ospf6->router_id)
twoway++;
- router_id_ptr++;
}
- /* execute neighbor events */
- thread_execute (master, hello_received, o6n, 0);
- if (twoway)
- thread_execute (master, twoway_received, o6n, 0);
- else
- thread_execute (master, oneway_received, o6n, 0);
+ if (p != OSPF6_MESSAGE_END (oh))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Trailing garbage ignored");
+ }
+
+ /* RouterPriority check */
+ if (on->priority != hello->priority)
+ {
+ on->priority = hello->priority;
+ neighborchange++;
+ }
+
+ /* DR check */
+ if (on->drouter != hello->drouter)
+ {
+ on->prev_drouter = on->drouter;
+ on->drouter = hello->drouter;
+ if (on->prev_drouter == on->router_id || on->drouter == on->router_id)
+ neighborchange++;
+ }
+
+ /* BDR check */
+ if (on->bdrouter != hello->bdrouter)
+ {
+ on->prev_bdrouter = on->bdrouter;
+ on->bdrouter = hello->bdrouter;
+ if (on->prev_bdrouter == on->router_id || on->bdrouter == on->router_id)
+ neighborchange++;
+ }
/* BackupSeen check */
- if (o6i->state == IFS_WAITING)
+ if (oi->state == OSPF6_INTERFACE_WAITING)
{
- if (hello->dr == hello->bdr &&
- hello->dr == o6n->router_id)
- zlog_warn ("*** DR Election of %s is illegal", o6n->str);
-
- if (hello->bdr == o6n->router_id)
+ if (hello->bdrouter == on->router_id)
backupseen++;
- else if (hello->dr == o6n->router_id && hello->bdr == 0)
+ else if (hello->drouter == on->router_id && hello->bdrouter == htonl (0))
backupseen++;
}
- /* NeighborChange check */
- if (changes & CHANGE_RTRPRI)
- nbchange++;
- if (changes & CHANGE_DR)
- if (o6n->prevdr == o6n->router_id || o6n->dr == o6n->router_id)
- nbchange++;
- if (changes & CHANGE_BDR)
- if (o6n->prevbdr == o6n->router_id || o6n->bdr == o6n->router_id)
- nbchange++;
+ /* Execute neighbor events */
+ thread_execute (master, hello_received, on, 0);
+ if (twoway)
+ thread_execute (master, twoway_received, on, 0);
+ else
+ thread_execute (master, oneway_received, on, 0);
- /* schedule interface events */
+ /* Schedule interface events */
if (backupseen)
- thread_add_event (master, backup_seen, o6i, 0);
- if (nbchange)
- thread_add_event (master, neighbor_change, o6i, 0);
-
- return;
+ thread_add_event (master, backup_seen, oi, 0);
+ if (neighborchange)
+ thread_add_event (master, neighbor_change, oi, 0);
}
-int
-ospf6_dbdesc_is_master (struct ospf6_neighbor *o6n)
+static void
+ospf6_dbdesc_recv_master (struct ospf6_header *oh,
+ struct ospf6_neighbor *on)
{
- char buf[128];
-
- if (o6n->router_id == ospf6->router_id)
- {
- inet_ntop (AF_INET6, &o6n->hisaddr, buf, sizeof (buf));
- zlog_warn ("Message: Neighbor router-id conflicts: %s: %s",
- o6n->str, buf);
- return -1;
- }
- else if (ntohl (o6n->router_id) > ntohl (ospf6->router_id))
- return 0;
- return 1;
-}
-
-int
-ospf6_dbdesc_is_duplicate (struct ospf6_dbdesc *received,
- struct ospf6_dbdesc *last_received)
-{
- if (memcmp (received->options, last_received->options, 3) != 0)
- return 0;
- if (received->ifmtu != last_received->ifmtu)
- return 0;
- if (received->bits != last_received->bits)
- return 0;
- if (received->seqnum != last_received->seqnum)
- return 0;
- return 1;
-}
-
-void
-ospf6_process_dbdesc_master (struct iovec *message, struct ospf6_neighbor *o6n)
-{
- struct ospf6_header *ospf6_header;
- u_int16_t length, lsa_count;
struct ospf6_dbdesc *dbdesc;
- struct ospf6_lsa_header *lsa_header;
+ char *p;
- /* caluculate length */
- ospf6_header = (struct ospf6_header *) message[0].iov_base;
- length = ntohs (ospf6_header->len) - sizeof (struct ospf6_header);
- length = (length < message[1].iov_len ? length : message[1].iov_len);
+ dbdesc = (struct ospf6_dbdesc *)
+ ((caddr_t) oh + sizeof (struct ospf6_header));
- /* set database description pointer */
- dbdesc = (struct ospf6_dbdesc *) message[1].iov_base;
-
- switch (o6n->state)
+ if (on->state < OSPF6_NEIGHBOR_INIT)
{
- case NBS_DOWN:
- case NBS_ATTEMPT:
- case NBS_TWOWAY:
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info ("DbDesc from %s Ignored: state less than Init",
- o6n->str);
- return;
-
- case NBS_INIT:
- thread_execute (master, twoway_received, o6n, 0);
- if (o6n->state != NBS_EXSTART)
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info ("DbDesc from %s Ignored: state less than ExStart",
- o6n->str);
- return;
- }
- /* else fall through to ExStart */
- case NBS_EXSTART:
- if (DDBIT_IS_SLAVE (dbdesc->bits) &&
- !DDBIT_IS_INITIAL (dbdesc->bits) &&
- ntohl (dbdesc->seqnum) == o6n->dbdesc_seqnum)
- {
- ospf6_neighbor_dbex_init (o6n);
-
- if (o6n->thread_rxmt_dbdesc)
- thread_cancel (o6n->thread_rxmt_dbdesc);
- o6n->thread_rxmt_dbdesc = (struct thread *) NULL;
-
- thread_add_event (master, negotiation_done, o6n, 0);
- }
- else
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info (" negotiation failed with %s", o6n->str);
- return;
- }
- break;
-
- case NBS_EXCHANGE:
- /* duplicate dbdesc dropped by master */
- if (!memcmp (dbdesc, &o6n->last_dd,
- sizeof (struct ospf6_dbdesc)))
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info (" duplicate dbdesc, drop");
- return;
- }
-
- /* check Initialize bit and Master/Slave bit */
- if (DDBIT_IS_INITIAL (dbdesc->bits))
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info ("Initialize bit mismatch");
- thread_add_event (master, seqnumber_mismatch, o6n, 0);
- return;
- }
- if (DDBIT_IS_MASTER (dbdesc->bits))
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info ("Master/Slave bit mismatch");
- thread_add_event (master, seqnumber_mismatch, o6n, 0);
- return;
- }
-
- /* dbdesc option check */
- if (memcmp (dbdesc->options, o6n->last_dd.options,
- sizeof (dbdesc->options)))
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info ("dbdesc option field changed");
- thread_add_event (master, seqnumber_mismatch, o6n, 0);
- return;
- }
-
- /* dbdesc sequence number check */
- if (ntohl (dbdesc->seqnum) != o6n->dbdesc_seqnum)
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_warn ("*** dbdesc seqnumber mismatch: %d expected",
- o6n->dbdesc_seqnum);
- thread_add_event (master, seqnumber_mismatch, o6n, 0);
- return;
- }
- break;
-
- case NBS_LOADING:
- case NBS_FULL:
- /* duplicate dbdesc dropped by master */
- if (ospf6_dbdesc_is_duplicate (dbdesc, &o6n->last_dd))
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info (" duplicate dbdesc, drop");
- return;
- }
- else
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info (" not duplicate dbdesc in state %s",
- ospf6_neighbor_state_string[o6n->state]);
- thread_add_event (master, seqnumber_mismatch, o6n, 0);
- return;
- }
- break; /* not reached */
-
- default:
- assert (0);
- break; /* not reached */
- }
-
- /* process LSA headers */
- lsa_count = 0;
- for (lsa_header = (struct ospf6_lsa_header *) (dbdesc + 1);
- (char *)(lsa_header + 1) <= (char *)dbdesc + length;
- lsa_header++)
- {
- if (ospf6_dbex_check_dbdesc_lsa_header (lsa_header, o6n) < 0)
- {
- thread_add_event (master, seqnumber_mismatch, o6n, 0);
- return;
- }
- lsa_count ++;
- }
-
- /* increment dbdesc seqnum */
- o6n->dbdesc_seqnum++;
-
- /* cancel transmission/retransmission thread */
- if (o6n->thread_send_dbdesc)
- thread_cancel (o6n->thread_send_dbdesc);
- o6n->thread_send_dbdesc = (struct thread *) NULL;
- if (o6n->thread_rxmt_dbdesc)
- thread_cancel (o6n->thread_rxmt_dbdesc);
- o6n->thread_rxmt_dbdesc = (struct thread *) NULL;
-
- /* more bit check */
- if (!DD_IS_MBIT_SET (dbdesc->bits) && !DD_IS_MBIT_SET (o6n->dbdesc_bits))
- thread_add_event (master, exchange_done, o6n, 0);
- else
- o6n->thread_send_dbdesc =
- thread_add_event (master, ospf6_send_dbdesc, o6n, 0);
-
- /* save last received dbdesc */
- memcpy (&o6n->last_dd, dbdesc, sizeof (struct ospf6_dbdesc));
-
- /* statistics */
- o6n->lsa_receive[OSPF6_MESSAGE_TYPE_DBDESC] += lsa_count;
-
- return;
-}
-
-void
-ospf6_process_dbdesc_slave (struct iovec *message, struct ospf6_neighbor *o6n)
-{
- struct ospf6_header *ospf6_header;
- u_int16_t length, lsa_count;
- struct ospf6_dbdesc *dbdesc;
- struct ospf6_lsa_header *lsa_header;
-
- /* caluculate length */
- ospf6_header = (struct ospf6_header *) message[0].iov_base;
- length = ntohs (ospf6_header->len) - sizeof (struct ospf6_header);
- length = (length < message[1].iov_len ? length : message[1].iov_len);
-
- /* set database description pointer */
- dbdesc = (struct ospf6_dbdesc *) message[1].iov_base;
-
- switch (o6n->state)
- {
- case NBS_DOWN:
- case NBS_ATTEMPT:
- case NBS_TWOWAY:
- return;
- case NBS_INIT:
- thread_execute (master, twoway_received, o6n, 0);
- if (o6n->state != NBS_EXSTART)
- {
- return;
- }
- /* else fall through to ExStart */
- case NBS_EXSTART:
- if (DD_IS_IBIT_SET (dbdesc->bits) &&
- DD_IS_MBIT_SET (dbdesc->bits) &&
- DD_IS_MSBIT_SET (dbdesc->bits))
- {
- /* Master/Slave bit set to slave */
- DD_MSBIT_CLEAR (o6n->dbdesc_bits);
- /* Initialize bit clear */
- DD_IBIT_CLEAR (o6n->dbdesc_bits);
- /* sequence number set to master's */
- o6n->dbdesc_seqnum = ntohl (dbdesc->seqnum);
- ospf6_neighbor_dbex_init (o6n);
-
- if (o6n->thread_rxmt_dbdesc)
- thread_cancel (o6n->thread_rxmt_dbdesc);
- o6n->thread_rxmt_dbdesc = (struct thread *) NULL;
-
- thread_add_event (master, negotiation_done, o6n, 0);
- }
- else
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info ("negotiation failed");
- return;
- }
- break;
-
- case NBS_EXCHANGE:
- /* duplicate dbdesc dropped by master */
- if (!memcmp (dbdesc, &o6n->last_dd,
- sizeof (struct ospf6_dbdesc)))
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info (" duplicate dbdesc, retransmit dbdesc");
-
- if (o6n->thread_rxmt_dbdesc)
- thread_cancel (o6n->thread_rxmt_dbdesc);
- o6n->thread_rxmt_dbdesc =
- thread_add_event (master, ospf6_send_dbdesc_rxmt, o6n, 0);
-
- return;
- }
-
- /* check Initialize bit and Master/Slave bit */
- if (DDBIT_IS_INITIAL (dbdesc->bits))
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info ("Initialize bit mismatch");
- thread_add_event (master, seqnumber_mismatch, o6n, 0);
- return;
- }
- if (DDBIT_IS_SLAVE (dbdesc->bits))
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info ("Master/Slave bit mismatch");
- thread_add_event (master, seqnumber_mismatch, o6n, 0);
- return;
- }
-
- /* dbdesc option check */
- if (memcmp (dbdesc->options, o6n->last_dd.options,
- sizeof (dbdesc->options)))
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info ("dbdesc option field changed");
- thread_add_event (master, seqnumber_mismatch, o6n, 0);
- return;
- }
-
- /* dbdesc sequence number check */
- if (ntohl (dbdesc->seqnum) != o6n->dbdesc_seqnum + 1)
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_warn ("*** dbdesc seqnumber mismatch: %d expected",
- o6n->dbdesc_seqnum + 1);
- thread_add_event (master, seqnumber_mismatch, o6n, 0);
- return;
- }
- break;
-
- case NBS_LOADING:
- case NBS_FULL:
- /* duplicate dbdesc cause slave to retransmit */
- if (ospf6_dbdesc_is_duplicate (dbdesc, &o6n->last_dd))
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info (" duplicate dbdesc, retransmit");
-
- if (o6n->thread_rxmt_dbdesc)
- thread_cancel (o6n->thread_rxmt_dbdesc);
- o6n->thread_rxmt_dbdesc =
- thread_add_event (master, ospf6_send_dbdesc_rxmt, o6n, 0);
-
- return;
- }
- else
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info (" not duplicate dbdesc in state %s",
- ospf6_neighbor_state_string[o6n->state]);
- thread_add_event (master, seqnumber_mismatch, o6n, 0);
- return;
- }
- break; /* not reached */
-
- default:
- assert (0);
- break; /* not reached */
- }
-
- /* process LSA headers */
- lsa_count = 0;
- for (lsa_header = (struct ospf6_lsa_header *) (dbdesc + 1);
- (char *)(lsa_header + 1) <= (char *)dbdesc + length;
- lsa_header++)
- {
- if (ospf6_dbex_check_dbdesc_lsa_header (lsa_header, o6n) < 0)
- {
- thread_add_event (master, seqnumber_mismatch, o6n, 0);
- return;
- }
- lsa_count ++;
- }
-
- /* set dbdesc seqnum to master's */
- o6n->dbdesc_seqnum = ntohl (dbdesc->seqnum);
-
- if (o6n->thread_send_dbdesc)
- thread_cancel (o6n->thread_send_dbdesc);
- o6n->thread_send_dbdesc =
- thread_add_event (master, ospf6_send_dbdesc, o6n, 0);
-
- /* save last received dbdesc */
- memcpy (&o6n->last_dd, dbdesc, sizeof (struct ospf6_dbdesc));
-
- /* statistics */
- o6n->lsa_receive[OSPF6_MESSAGE_TYPE_DBDESC] += lsa_count;
-
- return;
-}
-
-void
-ospf6_process_dbdesc (struct iovec *message,
- struct in6_addr *src,
- struct in6_addr *dst,
- struct ospf6_interface *o6i,
- u_int32_t router_id)
-{
- struct ospf6_header *ospf6_header;
- u_int16_t length;
- struct ospf6_neighbor *o6n;
- struct ospf6_dbdesc *dbdesc;
- int Im_master = 0;
-
- /* assert interface */
- assert (o6i);
-
- /* caluculate length */
- ospf6_header = (struct ospf6_header *) message[0].iov_base;
- length = ntohs (ospf6_header->len) - sizeof (struct ospf6_header);
- length = (length < message[1].iov_len ? length : message[1].iov_len);
-
- /* set database description pointer */
- dbdesc = (struct ospf6_dbdesc *) message[1].iov_base;
-
- /* find neighbor. if cannot be found, reject this message */
- o6n = ospf6_neighbor_lookup (router_id, o6i);
- if (!o6n)
- {
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info ("neighbor not found, reject");
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Neighbor state less than Init, ignore");
return;
}
- if (memcmp (src, &o6n->hisaddr, sizeof (struct in6_addr)))
+ switch (on->state)
{
- if (IS_OSPF6_DUMP_MESSAGE (ospf6_header->type))
- zlog_info ("From Secondary I/F of the neighbor: ignore");
+ case OSPF6_NEIGHBOR_TWOWAY:
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Neighbor state is 2-Way, ignore");
+ return;
+
+ case OSPF6_NEIGHBOR_INIT:
+ thread_execute (master, twoway_received, on, 0);
+ if (on->state != OSPF6_NEIGHBOR_EXSTART)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Neighbor state is not ExStart, ignore");
+ return;
+ }
+ /* else fall through to ExStart */
+
+ case OSPF6_NEIGHBOR_EXSTART:
+ /* if neighbor obeys us as our slave, schedule negotiation_done
+ and process LSA Headers. Otherwise, ignore this message */
+ if (! CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MSBIT) &&
+ ! CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_IBIT) &&
+ ntohl (dbdesc->seqnum) == on->dbdesc_seqnum)
+ {
+ /* execute NegotiationDone */
+ thread_execute (master, negotiation_done, on, 0);
+
+ /* Record neighbor options */
+ memcpy (on->options, dbdesc->options, sizeof (on->options));
+ }
+ else
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Negotiation failed");
+ return;
+ }
+ /* fall through to exchange */
+
+ case OSPF6_NEIGHBOR_EXCHANGE:
+ if (! memcmp (dbdesc, &on->dbdesc_last, sizeof (struct ospf6_dbdesc)))
+ {
+ /* Duplicated DatabaseDescription is dropped by master */
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Duplicated dbdesc discarded by Master, ignore");
+ return;
+ }
+
+ if (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MSBIT))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Master/Slave bit mismatch");
+ thread_add_event (master, seqnumber_mismatch, on, 0);
+ return;
+ }
+
+ if (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_IBIT))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Initialize bit mismatch");
+ thread_add_event (master, seqnumber_mismatch, on, 0);
+ return;
+ }
+
+ if (memcmp (on->options, dbdesc->options, sizeof (on->options)))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Option field mismatch");
+ thread_add_event (master, seqnumber_mismatch, on, 0);
+ return;
+ }
+
+ if (ntohl (dbdesc->seqnum) != on->dbdesc_seqnum)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Sequence number mismatch (%#lx expected)",
+ (u_long) on->dbdesc_seqnum);
+ thread_add_event (master, seqnumber_mismatch, on, 0);
+ return;
+ }
+ break;
+
+ case OSPF6_NEIGHBOR_LOADING:
+ case OSPF6_NEIGHBOR_FULL:
+ if (! memcmp (dbdesc, &on->dbdesc_last, sizeof (struct ospf6_dbdesc)))
+ {
+ /* Duplicated DatabaseDescription is dropped by master */
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Duplicated dbdesc discarded by Master, ignore");
+ return;
+ }
+
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Not duplicate dbdesc in state %s",
+ ospf6_neighbor_state_str[on->state]);
+ thread_add_event (master, seqnumber_mismatch, on, 0);
+ return;
+
+ default:
+ assert (0);
+ break;
+ }
+
+ /* Process LSA headers */
+ for (p = (char *) ((caddr_t) dbdesc + sizeof (struct ospf6_dbdesc));
+ p + sizeof (struct ospf6_lsa_header) <= OSPF6_MESSAGE_END (oh);
+ p += sizeof (struct ospf6_lsa_header))
+ {
+ struct ospf6_lsa *his, *mine;
+ struct ospf6_lsdb *lsdb = NULL;
+
+ his = ospf6_lsa_create_headeronly ((struct ospf6_lsa_header *) p);
+ his->scope = ospf6_get_lsa_scope (his->header->type, on);
+ lsdb = ospf6_get_scoped_lsdb (his->header->type, his->scope);
+ if (lsdb == NULL)
+ {
+ zlog_warn ("Can't decide scoped LSDB");
+ ospf6_lsa_delete (his);
+ thread_add_event (master, seqnumber_mismatch, on, 0);
+ return;
+ }
+
+ if (ntohs (his->header->type) == OSPF6_LSTYPE_AS_EXTERNAL &&
+ ospf6_area_is_stub (on->ospf6_if->area))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("E-bit mismatch with LSA Headers");
+ ospf6_lsa_delete (his);
+ thread_add_event (master, seqnumber_mismatch, on, 0);
+ return;
+ }
+
+ mine = ospf6_lsdb_lookup (his->header->type, his->header->id,
+ his->header->adv_router, lsdb);
+ if (mine == NULL || ospf6_lsa_compare (his, mine) < 0)
+ {
+ if (IS_OSPF6_DEBUG_LSA (RECV) || IS_OSPF6_DEBUG_LSA (DATABASE))
+ zlog_info ("Add %s's request-list: %s", on->name, his->name);
+ ospf6_lsdb_add (his, on->request_list);
+ }
+ else
+ ospf6_lsa_delete (his);
+ }
+
+ if (p != OSPF6_MESSAGE_END (oh))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Trailing garbage ignored");
+ }
+
+ /* Increment sequence number */
+ on->dbdesc_seqnum ++;
+
+ /* schedule send lsreq */
+ if (on->thread_send_lsreq == NULL)
+ on->thread_send_lsreq =
+ thread_add_event (master, ospf6_lsreq_send, on, 0);
+
+ THREAD_OFF (on->thread_send_dbdesc);
+
+ /* More bit check */
+ if (! CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MBIT) &&
+ ! CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MBIT))
+ thread_add_event (master, exchange_done, on, 0);
+ else
+ on->thread_send_dbdesc =
+ thread_add_event (master, ospf6_dbdesc_send_newone, on, 0);
+
+ /* save last received dbdesc */
+ memcpy (&on->dbdesc_last, dbdesc, sizeof (struct ospf6_dbdesc));
+}
+
+static void
+ospf6_dbdesc_recv_slave (struct ospf6_header *oh,
+ struct ospf6_neighbor *on)
+{
+ struct ospf6_dbdesc *dbdesc;
+ char *p;
+
+ dbdesc = (struct ospf6_dbdesc *)
+ ((caddr_t) oh + sizeof (struct ospf6_header));
+
+ if (on->state < OSPF6_NEIGHBOR_INIT)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Neighbor state less than Init, ignore");
return;
}
- /* interface mtu check */
- /* xxx */
-
- /* check am I master */
- Im_master = ospf6_dbdesc_is_master (o6n);
- if (Im_master < 0)
+ switch (on->state)
{
- return; /* can't decide which is master, return */
+ case OSPF6_NEIGHBOR_TWOWAY:
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Neighbor state is 2-Way, ignore");
+ return;
+
+ case OSPF6_NEIGHBOR_INIT:
+ thread_execute (master, twoway_received, on, 0);
+ if (on->state != OSPF6_NEIGHBOR_EXSTART)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Neighbor state is not ExStart, ignore");
+ return;
+ }
+ /* else fall through to ExStart */
+
+ case OSPF6_NEIGHBOR_EXSTART:
+ /* If the neighbor is Master, act as Slave. Schedule negotiation_done
+ and process LSA Headers. Otherwise, ignore this message */
+ if (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_IBIT) &&
+ CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MBIT) &&
+ CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MSBIT) &&
+ ntohs (oh->length) == sizeof (struct ospf6_header) +
+ sizeof (struct ospf6_dbdesc))
+ {
+ /* set the master/slave bit to slave */
+ UNSET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MSBIT);
+
+ /* set the DD sequence number to one specified by master */
+ on->dbdesc_seqnum = ntohl (dbdesc->seqnum);
+
+ /* schedule NegotiationDone */
+ thread_execute (master, negotiation_done, on, 0);
+
+ /* Record neighbor options */
+ memcpy (on->options, dbdesc->options, sizeof (on->options));
+ }
+ else
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Negotiation failed");
+ return;
+ }
+ break;
+
+ case OSPF6_NEIGHBOR_EXCHANGE:
+ if (! memcmp (dbdesc, &on->dbdesc_last, sizeof (struct ospf6_dbdesc)))
+ {
+ /* Duplicated DatabaseDescription causes slave to retransmit */
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Duplicated dbdesc causes retransmit");
+ THREAD_OFF (on->thread_send_dbdesc);
+ on->thread_send_dbdesc =
+ thread_add_event (master, ospf6_dbdesc_send, on, 0);
+ return;
+ }
+
+ if (! CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_MSBIT))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Master/Slave bit mismatch");
+ thread_add_event (master, seqnumber_mismatch, on, 0);
+ return;
+ }
+
+ if (CHECK_FLAG (dbdesc->bits, OSPF6_DBDESC_IBIT))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Initialize bit mismatch");
+ thread_add_event (master, seqnumber_mismatch, on, 0);
+ return;
+ }
+
+ if (memcmp (on->options, dbdesc->options, sizeof (on->options)))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Option field mismatch");
+ thread_add_event (master, seqnumber_mismatch, on, 0);
+ return;
+ }
+
+ if (ntohl (dbdesc->seqnum) != on->dbdesc_seqnum + 1)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Sequence number mismatch (%#lx expected)",
+ (u_long) on->dbdesc_seqnum + 1);
+ thread_add_event (master, seqnumber_mismatch, on, 0);
+ return;
+ }
+ break;
+
+ case OSPF6_NEIGHBOR_LOADING:
+ case OSPF6_NEIGHBOR_FULL:
+ if (! memcmp (dbdesc, &on->dbdesc_last, sizeof (struct ospf6_dbdesc)))
+ {
+ /* Duplicated DatabaseDescription causes slave to retransmit */
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Duplicated dbdesc causes retransmit");
+ THREAD_OFF (on->thread_send_dbdesc);
+ on->thread_send_dbdesc =
+ thread_add_event (master, ospf6_dbdesc_send, on, 0);
+ return;
+ }
+
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Not duplicate dbdesc in state %s",
+ ospf6_neighbor_state_str[on->state]);
+ thread_add_event (master, seqnumber_mismatch, on, 0);
+ return;
+
+ default:
+ assert (0);
+ break;
}
- if (Im_master)
- ospf6_process_dbdesc_master (message, o6n);
- else
- ospf6_process_dbdesc_slave (message, o6n);
+ /* Process LSA headers */
+ for (p = (char *) ((caddr_t) dbdesc + sizeof (struct ospf6_dbdesc));
+ p + sizeof (struct ospf6_lsa_header) <= OSPF6_MESSAGE_END (oh);
+ p += sizeof (struct ospf6_lsa_header))
+ {
+ struct ospf6_lsa *his, *mine;
+ struct ospf6_lsdb *lsdb = NULL;
- return;
+ his = ospf6_lsa_create_headeronly ((struct ospf6_lsa_header *) p);
+ his->scope = ospf6_get_lsa_scope (his->header->type, on);
+ lsdb = ospf6_get_scoped_lsdb (his->header->type, his->scope);
+ if (lsdb == NULL)
+ {
+ zlog_warn ("Can't decide scoped LSDB");
+ ospf6_lsa_delete (his);
+ thread_add_event (master, seqnumber_mismatch, on, 0);
+ return;
+ }
+
+ if (ntohs (his->header->type) == OSPF6_LSTYPE_AS_EXTERNAL &&
+ ospf6_area_is_stub (on->ospf6_if->area))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("E-bit mismatch with LSA Headers");
+ ospf6_lsa_delete (his);
+ thread_add_event (master, seqnumber_mismatch, on, 0);
+ return;
+ }
+
+ mine = ospf6_lsdb_lookup (his->header->type, his->header->id,
+ his->header->adv_router, lsdb);
+ if (mine == NULL || ospf6_lsa_compare (his, mine) < 0)
+ {
+ if (IS_OSPF6_DEBUG_LSA (RECV) || IS_OSPF6_DEBUG_LSA (DATABASE))
+ zlog_info ("Add %s to request-list of %s", his->name, on->name);
+ ospf6_lsdb_add (his, on->request_list);
+ }
+ else
+ ospf6_lsa_delete (his);
+ }
+
+ if (p != OSPF6_MESSAGE_END (oh))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Trailing garbage ignored");
+ }
+
+ /* Set sequence number to Master's */
+ on->dbdesc_seqnum = ntohl (dbdesc->seqnum);
+
+ /* schedule send lsreq */
+ if (on->thread_send_lsreq == NULL)
+ on->thread_send_lsreq =
+ thread_add_event (master, ospf6_lsreq_send, on, 0);
+
+ THREAD_OFF (on->thread_send_dbdesc);
+ on->thread_send_dbdesc =
+ thread_add_event (master, ospf6_dbdesc_send_newone, on, 0);
+
+ /* save last received dbdesc */
+ memcpy (&on->dbdesc_last, dbdesc, sizeof (struct ospf6_dbdesc));
}
void
-ospf6_process_lsreq (struct iovec *message,
- struct in6_addr *src,
- struct in6_addr *dst,
- struct ospf6_interface *o6i,
- u_int32_t router_id)
+ospf6_dbdesc_recv (struct in6_addr *src, struct in6_addr *dst,
+ struct ospf6_interface *oi, struct ospf6_header *oh)
{
- struct ospf6_header *ospf6_header;
- u_int16_t length;
- struct ospf6_neighbor *o6n;
- struct ospf6_lsreq *lsreq;
- struct iovec response[OSPF6_MESSAGE_IOVEC_SIZE];
+ struct ospf6_neighbor *on;
+ struct ospf6_dbdesc *dbdesc;
+
+ if (ospf6_header_examin (src, dst, oi, oh) != MSG_OK)
+ return;
+
+ on = ospf6_neighbor_lookup (oh->router_id, oi);
+ if (on == NULL)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Neighbor not found, ignore");
+ return;
+ }
+
+ if (memcmp (src, &on->linklocal_addr, sizeof (struct in6_addr)))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Seems to be from Secondary I/F of the neighbor, ignore");
+ return;
+ }
+
+ dbdesc = (struct ospf6_dbdesc *)
+ ((caddr_t) oh + sizeof (struct ospf6_header));
+
+ /* Interface MTU check */
+ if (ntohs (dbdesc->ifmtu) != oi->ifmtu)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("I/F MTU mismatch");
+ return;
+ }
+
+ if (dbdesc->reserved1 || dbdesc->reserved2)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Non-0 reserved field in %s's DbDesc, correct",
+ on->name);
+ dbdesc->reserved1 = 0;
+ dbdesc->reserved2 = 0;
+ }
+
+ if (ntohl (oh->router_id) < ntohl (ospf6->router_id))
+ ospf6_dbdesc_recv_master (oh, on);
+ else if (ntohl (ospf6->router_id) < ntohl (oh->router_id))
+ ospf6_dbdesc_recv_slave (oh, on);
+ else
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Can't decide which is master, ignore");
+ }
+}
+
+void
+ospf6_lsreq_recv (struct in6_addr *src, struct in6_addr *dst,
+ struct ospf6_interface *oi, struct ospf6_header *oh)
+{
+ struct ospf6_neighbor *on;
+ char *p;
+ struct ospf6_lsreq_entry *e;
+ void *scope = NULL;
+ struct ospf6_lsdb *lsdb = NULL;
struct ospf6_lsa *lsa;
- unsigned long lsanum = 0;
- struct ospf6_lsupdate lsupdate;
- char buf_id[16], buf_router[16], buf_type[16];
- /* assert interface */
- assert (o6i);
+ if (ospf6_header_examin (src, dst, oi, oh) != MSG_OK)
+ return;
- /* caluculate length */
- ospf6_header = (struct ospf6_header *) message[0].iov_base;
- length = ntohs (ospf6_header->len) - sizeof (struct ospf6_header);
- length = (length < message[1].iov_len ? length : message[1].iov_len);
-
- /* find neighbor. if cannot be found, reject this message */
- o6n = ospf6_neighbor_lookup (router_id, o6i);
- if (!o6n)
+ on = ospf6_neighbor_lookup (oh->router_id, oi);
+ if (on == NULL)
{
- if (IS_OSPF6_DUMP_LSREQ)
- zlog_info (" neighbor not found, reject");
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Neighbor not found, ignore");
return;
}
- if (memcmp (src, &o6n->hisaddr, sizeof (struct in6_addr)))
+ if (memcmp (src, &on->linklocal_addr, sizeof (struct in6_addr)))
{
- if (IS_OSPF6_DUMP_MESSAGE (ospf6_header->type))
- zlog_info ("From Secondary I/F of the neighbor: ignore");
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Seems to be from Secondary I/F of the neighbor, ignore");
return;
}
- /* In states other than ExChange, Loading, or Full, the packet
- should be ignored. */
- if (o6n->state != NBS_EXCHANGE && o6n->state != NBS_LOADING
- && o6n->state != NBS_FULL)
+ if (on->state != OSPF6_NEIGHBOR_EXCHANGE &&
+ on->state != OSPF6_NEIGHBOR_LOADING &&
+ on->state != OSPF6_NEIGHBOR_FULL)
{
- if (IS_OSPF6_DUMP_LSREQ)
- zlog_info (" neighbor state less than Exchange, reject");
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Neighbor state less than Exchange, ignore");
return;
}
- /* Initialize response LSUpdate packet */
- OSPF6_MESSAGE_CLEAR (response);
- memset (&lsupdate, 0, sizeof (struct ospf6_lsupdate));
- OSPF6_MESSAGE_ATTACH (response, &lsupdate, sizeof (struct ospf6_lsupdate));
-
- /* process each request */
- lsanum = 0;
- for (lsreq = (struct ospf6_lsreq *) message[1].iov_base;
- (char *)(lsreq + 1) <= (char *)(message[1].iov_base + length);
- lsreq++)
+ /* Process each request */
+ for (p = (char *) ((caddr_t) oh + sizeof (struct ospf6_header));
+ p + sizeof (struct ospf6_lsreq_entry) <= OSPF6_MESSAGE_END (oh);
+ p += sizeof (struct ospf6_lsreq_entry))
{
- inet_ntop (AF_INET, &lsreq->adv_router, buf_router, sizeof (buf_router));
- inet_ntop (AF_INET, &lsreq->id, buf_id, sizeof (buf_id));
+ e = (struct ospf6_lsreq_entry *) p;
+ scope = ospf6_get_lsa_scope (e->type, on);
+ lsdb = ospf6_get_scoped_lsdb (e->type, scope);
- /* find instance of database copy */
- lsa = ospf6_lsdb_lookup (lsreq->type, lsreq->id, lsreq->adv_router,
- ospf6_lsa_get_scope (lsreq->type, o6i));
-
- if (!lsa)
+ /* Find database copy */
+ lsa = ospf6_lsdb_lookup (e->type, e->id, e->adv_router, lsdb);
+ if (lsa == NULL)
{
- if (IS_OSPF6_DUMP_LSREQ)
- zlog_info ("BadLSReq: %s requests [%s ID=%s Adv=%s] not found",
- o6n->str, ospf6_lsa_type_string (lsreq->type, buf_type,
- sizeof (buf_type)),
- buf_id, buf_router);
- thread_add_event (master, bad_lsreq, o6n, 0);
+ char id[16], adv_router[16];
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ {
+ inet_ntop (AF_INET, &e->id, id, sizeof (id));
+ inet_ntop (AF_INET, &e->adv_router, adv_router,
+ sizeof (adv_router));
+ zlog_info ("Can't find requested [%s Id:%s Adv:%s]",
+ OSPF6_LSTYPE_NAME (e->type), id, adv_router);
+ }
+ thread_add_event (master, bad_lsreq, on, 0);
return;
}
- /* I/F MTU check */
- if (sizeof (struct ospf6_header) + sizeof (struct ospf6_lsupdate)
- + iov_totallen (response) + ntohs (lsa->header->length)
- > o6i->ifmtu)
- break;
-
- OSPF6_MESSAGE_ATTACH (response, lsa->header, ntohs (lsa->header->length));
- lsanum++;
+ if (IS_OSPF6_DEBUG_LSA (DATABASE))
+ zlog_info ("Add copy of %s to lsupdate_list of %s",
+ lsa->name, on->name);
+ ospf6_lsdb_add (ospf6_lsa_copy (lsa), on->lsupdate_list);
}
- /* send response LSUpdate to this request */
- if (lsanum)
+ if (p != OSPF6_MESSAGE_END (oh))
{
- lsupdate.lsupdate_num = htonl (lsanum);
-
- ospf6_message_send (OSPF6_MESSAGE_TYPE_LSUPDATE, response,
- &o6n->hisaddr, o6i->if_id);
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Trailing garbage ignored");
}
- /* statistics */
- o6n->lsa_receive[OSPF6_MESSAGE_TYPE_LSREQ]
- += length / sizeof (struct ospf6_lsreq);
+ /* schedule send lsupdate */
+ THREAD_OFF (on->thread_send_lsupdate);
+ on->thread_send_lsupdate =
+ thread_add_event (master, ospf6_lsupdate_send_neighbor, on, 0);
}
void
-ospf6_process_lsupdate (struct iovec *message,
- struct in6_addr *src,
- struct in6_addr *dst,
- struct ospf6_interface *o6i,
- u_int32_t router_id)
+ospf6_lsupdate_recv (struct in6_addr *src, struct in6_addr *dst,
+ struct ospf6_interface *oi, struct ospf6_header *oh)
{
- struct ospf6_header *ospf6_header;
- u_int16_t length;
+ struct ospf6_neighbor *on;
struct ospf6_lsupdate *lsupdate;
- struct ospf6_neighbor *o6n;
- unsigned long lsanum;
- struct ospf6_lsa_header *lsa_header;
+ unsigned long num;
+ char *p;
- /* assert interface */
- assert (o6i);
+ if (ospf6_header_examin (src, dst, oi, oh) != MSG_OK)
+ return;
- /* caluculate length */
- ospf6_header = (struct ospf6_header *) message[0].iov_base;
- length = ntohs (ospf6_header->len) - sizeof (struct ospf6_header);
- length = (length < message[1].iov_len ? length : message[1].iov_len);
-
- /* find neighbor. if cannot be found, reject this message */
- o6n = ospf6_neighbor_lookup (router_id, o6i);
- if (! o6n)
+ on = ospf6_neighbor_lookup (oh->router_id, oi);
+ if (on == NULL)
{
- if (IS_OSPF6_DUMP_LSUPDATE)
- zlog_info (" neighbor not found, reject");
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Neighbor not found, ignore");
return;
}
- if (memcmp (src, &o6n->hisaddr, sizeof (struct in6_addr)))
+ if (memcmp (src, &on->linklocal_addr, sizeof (struct in6_addr)))
{
- if (IS_OSPF6_DUMP_MESSAGE (ospf6_header->type))
- zlog_info ("From Secondary I/F of the neighbor: ignore");
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Seems to be from Secondary I/F of the neighbor, ignore");
return;
}
- /* if neighbor state less than ExChange, reject this message */
- if (o6n->state < NBS_EXCHANGE)
+ if (on->state != OSPF6_NEIGHBOR_EXCHANGE &&
+ on->state != OSPF6_NEIGHBOR_LOADING &&
+ on->state != OSPF6_NEIGHBOR_FULL)
{
- if (IS_OSPF6_DUMP_LSUPDATE)
- zlog_info (" neighbor state less than Exchange, reject");
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Neighbor state less than Exchange, ignore");
return;
}
- /* set linkstate update pointer */
- lsupdate = (struct ospf6_lsupdate *) message[1].iov_base;
+ lsupdate = (struct ospf6_lsupdate *)
+ ((caddr_t) oh + sizeof (struct ospf6_header));
- /* save linkstate update info */
- lsanum = ntohl (lsupdate->lsupdate_num);
+ num = ntohl (lsupdate->lsa_number);
- /* statistics */
- o6n->ospf6_stat_received_lsa += lsanum;
- o6n->ospf6_stat_received_lsupdate++;
+ /* Process LSAs */
+ for (p = (char *) ((caddr_t) lsupdate + sizeof (struct ospf6_lsupdate));
+ p < OSPF6_MESSAGE_END (oh) &&
+ p + OSPF6_LSA_SIZE (p) <= OSPF6_MESSAGE_END (oh);
+ p += OSPF6_LSA_SIZE (p))
+ {
+ if (num == 0)
+ break;
+ if (OSPF6_LSA_SIZE (p) < sizeof (struct ospf6_lsa_header))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Malformed LSA length, quit processing");
+ break;
+ }
+
+ ospf6_receive_lsa ((struct ospf6_lsa_header *) p, on);
+ num--;
+ }
+
+ if (num != 0)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Malformed LSA number or LSA length");
+ }
+ if (p != OSPF6_MESSAGE_END (oh))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Trailing garbage ignored");
+ }
/* RFC2328 Section 10.9: When the neighbor responds to these requests
with the proper Link State Update packet(s), the Link state request
list is truncated and a new Link State Request packet is sent. */
-
- /* process LSAs */
- for (lsa_header = (struct ospf6_lsa_header *) (lsupdate + 1);
- lsanum && (char *)lsa_header < (char *)lsupdate + length;
- lsanum--)
- {
- ospf6_dbex_receive_lsa (lsa_header, o6n);
- lsa_header = OSPF6_LSA_NEXT (lsa_header);
- }
-
/* send new Link State Request packet if this LS Update packet
- can be recognized as a response to our previous LS request */
- if (! IN6_IS_ADDR_MULTICAST(dst) &&
- (o6n->state == NBS_EXCHANGE || o6n->state == NBS_LOADING))
- thread_add_event (master, ospf6_send_lsreq, o6n, 0);
-
- return;
+ can be recognized as a response to our previous LS Request */
+ if (! IN6_IS_ADDR_MULTICAST (dst) &&
+ (on->state == OSPF6_NEIGHBOR_EXCHANGE ||
+ on->state == OSPF6_NEIGHBOR_LOADING))
+ {
+ THREAD_OFF (on->thread_send_lsreq);
+ on->thread_send_lsreq =
+ thread_add_event (master, ospf6_lsreq_send, on, 0);
+ }
}
void
-ospf6_process_lsack (struct iovec *message,
- struct in6_addr *src,
- struct in6_addr *dst,
- struct ospf6_interface *o6i,
- u_int32_t router_id)
+ospf6_lsack_recv (struct in6_addr *src, struct in6_addr *dst,
+ struct ospf6_interface *oi, struct ospf6_header *oh)
{
- struct ospf6_header *ospf6_header;
- u_int16_t length;
- struct ospf6_neighbor *o6n;
- struct ospf6_lsa_header *lsa_header;
- struct ospf6_lsa *lsa, *copy, *rem;
+ struct ospf6_neighbor *on;
+ char *p;
+ struct ospf6_lsa *his, *mine;
+ struct ospf6_lsdb *lsdb = NULL;
- /* assert interface */
- assert (o6i);
+ assert (oh->type == OSPF6_MESSAGE_TYPE_LSACK);
+ if (ospf6_header_examin (src, dst, oi, oh) != MSG_OK)
+ return;
- /* caluculate length */
- ospf6_header = (struct ospf6_header *) message[0].iov_base;
- length = ntohs (ospf6_header->len) - sizeof (struct ospf6_header);
- length = (length < message[1].iov_len ? length : message[1].iov_len);
-
- /* find neighbor. if cannot be found, reject this message */
- o6n = ospf6_neighbor_lookup (router_id, o6i);
- if (!o6n)
+ on = ospf6_neighbor_lookup (oh->router_id, oi);
+ if (on == NULL)
{
- if (IS_OSPF6_DUMP_LSACK)
- zlog_info ("LSACK: neighbor not found, reject");
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Neighbor not found, ignore");
return;
}
- if (memcmp (src, &o6n->hisaddr, sizeof (struct in6_addr)))
+ if (memcmp (src, &on->linklocal_addr, sizeof (struct in6_addr)))
{
- if (IS_OSPF6_DUMP_LSACK)
- zlog_info ("LSACK: From Secondary I/F of the neighbor: ignore");
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Seems to be from Secondary I/F of the neighbor, ignore");
return;
}
- /* if neighbor state less than ExChange, reject this message */
- if (o6n->state < NBS_EXCHANGE)
+ if (on->state != OSPF6_NEIGHBOR_EXCHANGE &&
+ on->state != OSPF6_NEIGHBOR_LOADING &&
+ on->state != OSPF6_NEIGHBOR_FULL)
{
- if (IS_OSPF6_DUMP_LSACK)
- zlog_info ("LSACK: neighbor state less than Exchange, reject");
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Neighbor state less than Exchange, ignore");
return;
}
- /* process each LSA header */
- for (lsa_header = (struct ospf6_lsa_header *) message[1].iov_base;
- (char *)(lsa_header + 1) <= (char *)(message[1].iov_base + length);
- lsa_header++)
+ for (p = (char *) ((caddr_t) oh + sizeof (struct ospf6_header));
+ p + sizeof (struct ospf6_lsa_header) <= OSPF6_MESSAGE_END (oh);
+ p += sizeof (struct ospf6_lsa_header))
{
- /* find database copy */
- copy = ospf6_lsdb_lookup (lsa_header->type, lsa_header->ls_id,
- lsa_header->advrtr,
- ospf6_lsa_get_scope (lsa_header->type, o6i));
+ his = ospf6_lsa_create_headeronly ((struct ospf6_lsa_header *) p);
+ his->scope = ospf6_get_lsa_scope (his->header->type, on);
+ lsdb = ospf6_get_scoped_lsdb (his->header->type, his->scope);
- /* if no database copy */
- if (!copy)
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV) ||
+ IS_OSPF6_DEBUG_LSA (SEND))
+ zlog_info ("%s acknowledged by %s", his->name, on->name);
+
+ /* Find database copy */
+ mine = ospf6_lsdb_lookup (his->header->type, his->header->id,
+ his->header->adv_router, lsdb);
+ if (mine == NULL)
{
- if (IS_OSPF6_DUMP_LSACK)
- zlog_info ("LSACK: no database copy, ignore");
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("No database copy");
+ ospf6_lsa_delete (his);
continue;
}
- /* if not on his retrans list */
- rem = ospf6_lsdb_lookup_lsdb (copy->header->type, copy->header->id,
- copy->header->adv_router,
- o6n->retrans_list);
- if (rem == NULL)
+ /* Check if the LSA is on his retrans-list */
+ mine = ospf6_lsdb_lookup (his->header->type, his->header->id,
+ his->header->adv_router, on->retrans_list);
+ if (mine == NULL)
{
- if (IS_OSPF6_DUMP_LSACK)
- zlog_info ("LSACK: not on %s's retranslist, ignore", o6n->str);
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Not on %s's retrans-list", on->name);
+ ospf6_lsa_delete (his);
continue;
}
- /* create temporary LSA from Ack message */
- lsa = ospf6_lsa_summary_create ((struct ospf6_lsa_header__ *) lsa_header);
-
- /* if the same instance, remove from retrans list.
- else, log and ignore */
- if (ospf6_lsa_check_recent (lsa, copy) == 0)
- ospf6_neighbor_retrans_remove (rem, o6n);
- else
+ if (ospf6_lsa_compare (his, mine) != 0)
{
- /* Log the questionable acknowledgement,
+ /* Log this questionable acknowledgement,
and examine the next one. */
- zlog_info ("LSACK: questionable acknowledge: %s", copy->str);
- zlog_info ("LSACK: received: seq: %#x age: %hu",
- ntohl (lsa->header->seqnum),
- ntohs (lsa->header->age));
- zlog_info ("LSACK: instance: seq: %#x age: %hu",
- ntohl (copy->header->seqnum),
- ospf6_lsa_age_current (copy));
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Questionable acknowledgement");
+ ospf6_lsa_delete (his);
+ continue;
}
- /* release temporary LSA from Ack message */
- ospf6_lsa_delete (lsa);
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV) ||
+ IS_OSPF6_DEBUG_LSA (SEND))
+ zlog_info ("Acknowledged, remove from %s's retrans-list",
+ on->name);
+
+ if (OSPF6_LSA_IS_MAXAGE (mine))
+ ospf6_maxage_remove (on->ospf6_if->area->ospf6);
+
+ if (IS_OSPF6_DEBUG_LSA (DATABASE))
+ zlog_info ("remove %s from retrans_list of %s",
+ mine->name, on->name);
+ ospf6_lsdb_remove (mine, on->retrans_list);
+ ospf6_lsa_delete (his);
}
- ospf6_maxage_remover ();
- return;
+ if (p != OSPF6_MESSAGE_END (oh))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Trailing garbage ignored");
+ }
}
-struct {
- void (*process) (struct iovec *, struct in6_addr *, struct in6_addr *,
- struct ospf6_interface *, u_int32_t);
-} ospf6_message_process_type [] =
-{
- {ospf6_process_unknown},
- {ospf6_process_hello},
- {ospf6_process_dbdesc},
- {ospf6_process_lsreq},
- {ospf6_process_lsupdate},
- {ospf6_process_lsack}
-};
-
-/* process ospf6 protocol header. then, call next process function
- for each message type */
-static void
-ospf6_message_process (struct iovec *message,
- struct in6_addr *src,
- struct in6_addr *dst,
- struct ospf6_interface *o6i)
-{
- struct ospf6_header *ospf6_header = NULL;
- u_char type;
- u_int32_t router_id;
- char srcname[64];
-
- assert (o6i);
- assert (src);
- assert (dst);
-
- /* set ospf6_hdr pointer to head of buffer */
- ospf6_header = (struct ospf6_header *) message[0].iov_base;
-
- /* version check */
- if (ospf6_header->version != OSPF6_VERSION)
- {
- if (IS_OSPF6_DUMP_MESSAGE (ospf6_header->type))
- zlog_info ("version mismatch, drop");
- return;
- }
-
- /* area id check */
- if (ospf6_header->area_id != o6i->area->area_id)
- {
- if (ospf6_header->area_id == 0)
- {
- if (IS_OSPF6_DUMP_MESSAGE (ospf6_header->type))
- zlog_info ("virtual link not yet, drop");
- return;
- }
-
- if (IS_OSPF6_DUMP_MESSAGE (ospf6_header->type))
- zlog_info ("area id mismatch, drop");
- return;
- }
-
- /* instance id check */
- if (ospf6_header->instance_id != o6i->instance_id)
- {
- if (IS_OSPF6_DUMP_MESSAGE (ospf6_header->type))
- zlog_info ("instance id mismatch, drop");
- return;
- }
-
- /* message type check */
- type = (ospf6_header->type >= OSPF6_MESSAGE_TYPE_MAX ?
- OSPF6_MESSAGE_TYPE_UNKNOWN : ospf6_header->type);
-
- /* log */
- if (IS_OSPF6_DUMP_MESSAGE (type))
- {
- char srcname[64], dstname[64];
- inet_ntop (AF_INET6, dst, dstname, sizeof (dstname));
- inet_ntop (AF_INET6, src, srcname, sizeof (srcname));
- zlog_info ("Receive %s on %s",
- ospf6_message_type_string[type], o6i->interface->name);
- zlog_info (" %s -> %s", srcname, dstname);
- ospf6_message_log (message);
- }
-
- /* router id check */
- router_id = ospf6_header->router_id;
- if (ospf6_header->router_id == o6i->area->ospf6->router_id)
- {
- inet_ntop (AF_INET6, src, srcname, sizeof (srcname));
- zlog_warn ("*** Router-ID mismatch: from %s on %s",
- srcname, o6i->interface->name);
- return;
- }
-
- /* octet statistics relies on some asumption:
- on ethernet, no IPv6 Extention header, etc */
-#define OSPF6_IP6_HEADER_SIZE 40
-#define OSPF6_ETHER_HEADER_SIZE 14
- o6i->message_stat[type].recv++;
- o6i->message_stat[type].recv_octet += ntohs (ospf6_header->len)
- + OSPF6_IP6_HEADER_SIZE + OSPF6_ETHER_HEADER_SIZE;
-
- /* futher process */
- (*ospf6_message_process_type[type].process) (&message[0], src, dst, o6i, router_id);
-
- return;
-}
+char recvbuf[OSPF6_MESSAGE_BUFSIZ];
+char sendbuf[OSPF6_MESSAGE_BUFSIZ];
int
ospf6_receive (struct thread *thread)
{
- int sockfd;
+ int sockfd, len;
+ char srcname[64], dstname[64];
struct in6_addr src, dst;
unsigned int ifindex;
- struct iovec message[OSPF6_MESSAGE_IOVEC_SIZE];
- struct ospf6_header ospf6_header;
- char buffer[OSPF6_MESSAGE_RECEIVE_BUFSIZE];
- struct ospf6_interface *o6i;
- unsigned char type;
-
- /* get socket */
- sockfd = THREAD_FD (thread);
+ struct iovec iovector[2];
+ struct ospf6_interface *oi;
+ struct ospf6_header *oh;
/* add next read thread */
+ sockfd = THREAD_FD (thread);
thread_add_read (master, ospf6_receive, NULL, sockfd);
/* initialize */
- OSPF6_MESSAGE_CLEAR (message);
- memset (&ospf6_header, 0, sizeof (struct ospf6_header));
-
- OSPF6_MESSAGE_ATTACH (message, &ospf6_header, sizeof (struct ospf6_header));
- OSPF6_MESSAGE_ATTACH (message, buffer, OSPF6_MESSAGE_RECEIVE_BUFSIZE);
+ memset (recvbuf, 0, sizeof (recvbuf));
+ iovector[0].iov_base = recvbuf;
+ iovector[0].iov_len = sizeof (recvbuf);
+ iovector[1].iov_base = NULL;
+ iovector[1].iov_len = 0;
/* receive message */
- ospf6_recvmsg (&src, &dst, &ifindex, message);
-
- type = (OSPF6_MESSAGE_TYPE_UNKNOWN < ospf6_header.type &&
- ospf6_header.type <= OSPF6_MESSAGE_TYPE_LSACK ?
- ospf6_header.type : OSPF6_MESSAGE_TYPE_UNKNOWN);
- o6i = ospf6_interface_lookup_by_index (ifindex);
- if (!o6i || !o6i->area)
+ len = ospf6_recvmsg (&src, &dst, &ifindex, iovector);
+ if (len > sizeof (recvbuf))
{
- //zlog_warn ("*** received interface ospf6 disabled");
+ zlog_err ("Excess message read");
+ return 0;
+ }
+ else if (len < sizeof (struct ospf6_header))
+ {
+ zlog_err ("Deficient message read");
return 0;
}
- /* if not passive, process message */
- if (! CHECK_FLAG (o6i->flag, OSPF6_INTERFACE_FLAG_PASSIVE))
- ospf6_message_process (message, &src, &dst, o6i);
- else if (IS_OSPF6_DUMP_MESSAGE (type))
- zlog_info ("Ignore message on passive interface %s",
- o6i->interface->name);
+ oi = ospf6_interface_lookup_by_ifindex (ifindex);
+ if (oi == NULL || oi->area == NULL)
+ {
+ zlog_info ("Message received on disabled interface");
+ return 0;
+ }
+
+ oh = (struct ospf6_header *) recvbuf;
+
+ /* Log */
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ {
+ inet_ntop (AF_INET6, &src, srcname, sizeof (srcname));
+ inet_ntop (AF_INET6, &dst, dstname, sizeof (dstname));
+ zlog_info ("%s received on %s",
+ OSPF6_MESSAGE_TYPE_NAME (oh->type), oi->interface->name);
+ zlog_info (" src: %s", srcname);
+ zlog_info (" dst: %s", dstname);
+ if (len != ntohs (oh->length))
+ zlog_info ("Message length does not match actually received: %d", len);
+
+ switch (oh->type)
+ {
+ case OSPF6_MESSAGE_TYPE_HELLO:
+ ospf6_hello_print (oh);
+ break;
+ case OSPF6_MESSAGE_TYPE_DBDESC:
+ ospf6_dbdesc_print (oh);
+ break;
+ case OSPF6_MESSAGE_TYPE_LSREQ:
+ ospf6_lsreq_print (oh);
+ break;
+ case OSPF6_MESSAGE_TYPE_LSUPDATE:
+ ospf6_lsupdate_print (oh);
+ break;
+ case OSPF6_MESSAGE_TYPE_LSACK:
+ ospf6_lsack_print (oh);
+ break;
+ default:
+ zlog_info ("Unknown message");
+ break;
+ }
+ }
+
+ if (CHECK_FLAG (oi->flag, OSPF6_INTERFACE_PASSIVE))
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV))
+ zlog_info ("Ignore message on passive interface %s",
+ oi->interface->name);
+ return 0;
+ }
+
+ switch (oh->type)
+ {
+ case OSPF6_MESSAGE_TYPE_HELLO:
+ ospf6_hello_recv (&src, &dst, oi, oh);
+ break;
+
+ case OSPF6_MESSAGE_TYPE_DBDESC:
+ ospf6_dbdesc_recv (&src, &dst, oi, oh);
+ break;
+
+ case OSPF6_MESSAGE_TYPE_LSREQ:
+ ospf6_lsreq_recv (&src, &dst, oi, oh);
+ break;
+
+ case OSPF6_MESSAGE_TYPE_LSUPDATE:
+ ospf6_lsupdate_recv (&src, &dst, oi, oh);
+ break;
+
+ case OSPF6_MESSAGE_TYPE_LSACK:
+ ospf6_lsack_recv (&src, &dst, oi, oh);
+ break;
+
+ default:
+ if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, RECV))
+ zlog_info ("Unknown message");
+ break;
+ }
+
+ return 0;
+}
+
+void
+ospf6_send (struct in6_addr *src, struct in6_addr *dst,
+ struct ospf6_interface *oi, struct ospf6_header *oh)
+{
+ int len;
+ char srcname[64], dstname[64];
+ struct iovec iovector[2];
+
+ /* initialize */
+ iovector[0].iov_base = (caddr_t) oh;
+ iovector[0].iov_len = ntohs (oh->length);
+ iovector[1].iov_base = NULL;
+ iovector[1].iov_len = 0;
+
+ /* fill OSPF header */
+ oh->version = OSPFV3_VERSION;
+ /* message type must be set before */
+ /* message length must be set before */
+ oh->router_id = oi->area->ospf6->router_id;
+ oh->area_id = oi->area->area_id;
+ /* checksum is calculated by kernel */
+ oh->instance_id = oi->instance_id;
+ oh->reserved = 0;
+
+ /* Log */
+ if (IS_OSPF6_DEBUG_MESSAGE (oh->type, SEND))
+ {
+ inet_ntop (AF_INET6, dst, dstname, sizeof (dstname));
+ if (src)
+ inet_ntop (AF_INET6, src, srcname, sizeof (srcname));
+ else
+ memset (srcname, 0, sizeof (srcname));
+ zlog_info ("%s send on %s",
+ OSPF6_MESSAGE_TYPE_NAME (oh->type), oi->interface->name);
+ zlog_info (" src: %s", srcname);
+ zlog_info (" dst: %s", dstname);
+
+ switch (oh->type)
+ {
+ case OSPF6_MESSAGE_TYPE_HELLO:
+ ospf6_hello_print (oh);
+ break;
+ case OSPF6_MESSAGE_TYPE_DBDESC:
+ ospf6_dbdesc_print (oh);
+ break;
+ case OSPF6_MESSAGE_TYPE_LSREQ:
+ ospf6_lsreq_print (oh);
+ break;
+ case OSPF6_MESSAGE_TYPE_LSUPDATE:
+ ospf6_lsupdate_print (oh);
+ break;
+ case OSPF6_MESSAGE_TYPE_LSACK:
+ ospf6_lsack_print (oh);
+ break;
+ default:
+ zlog_info ("Unknown message");
+ assert (0);
+ break;
+ }
+ }
+
+ /* send message */
+ len = ospf6_sendmsg (src, dst, &oi->interface->ifindex, iovector);
+ if (len != ntohs (oh->length))
+ zlog_err ("Could not send entire message");
+}
+
+int
+ospf6_hello_send (struct thread *thread)
+{
+ struct ospf6_interface *oi;
+ struct ospf6_header *oh;
+ struct ospf6_hello *hello;
+ char *p;
+ listnode node;
+ struct ospf6_neighbor *on;
+
+ oi = (struct ospf6_interface *) THREAD_ARG (thread);
+ oi->thread_send_hello = (struct thread *) NULL;
+
+ if (oi->state <= OSPF6_INTERFACE_DOWN)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_HELLO, SEND))
+ zlog_info ("Unable to send Hello on down interface %s",
+ oi->interface->name);
+ return 0;
+ }
+
+ /* set next thread */
+ oi->thread_send_hello = thread_add_timer (master, ospf6_hello_send,
+ oi, oi->hello_interval);
+
+ memset (sendbuf, 0, sizeof (sendbuf));
+ oh = (struct ospf6_header *) sendbuf;
+ hello = (struct ospf6_hello *)((caddr_t) oh + sizeof (struct ospf6_header));
+
+ hello->interface_id = htonl (oi->interface->ifindex);
+ hello->priority = oi->priority;
+ hello->options[0] = oi->area->options[0];
+ hello->options[1] = oi->area->options[1];
+ hello->options[2] = oi->area->options[2];
+ hello->hello_interval = htons (oi->hello_interval);
+ hello->dead_interval = htons (oi->dead_interval);
+ hello->drouter = oi->drouter;
+ hello->bdrouter = oi->bdrouter;
+
+ p = (char *)((caddr_t) hello + sizeof (struct ospf6_hello));
+
+ for (node = listhead (oi->neighbor_list); node; nextnode (node))
+ {
+ on = (struct ospf6_neighbor *) getdata (node);
+
+ if (on->state < OSPF6_NEIGHBOR_INIT)
+ continue;
+
+ if (p - sendbuf + sizeof (u_int32_t) > oi->ifmtu)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_HELLO, SEND))
+ zlog_info ("sending Hello message: exceeds I/F MTU");
+ break;
+ }
+
+ memcpy (p, &on->router_id, sizeof (u_int32_t));
+ p += sizeof (u_int32_t);
+ }
+
+ oh->type = OSPF6_MESSAGE_TYPE_HELLO;
+ oh->length = htons (p - sendbuf);
+
+ ospf6_send (oi->linklocal_addr, &allspfrouters6, oi, oh);
+ return 0;
+}
+
+int
+ospf6_dbdesc_send (struct thread *thread)
+{
+ struct ospf6_neighbor *on;
+ struct ospf6_header *oh;
+ struct ospf6_dbdesc *dbdesc;
+ char *p;
+ struct ospf6_lsa *lsa;
+
+ on = (struct ospf6_neighbor *) THREAD_ARG (thread);
+ on->thread_send_dbdesc = (struct thread *) NULL;
+
+ if (on->state < OSPF6_NEIGHBOR_EXSTART)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_DBDESC, SEND))
+ zlog_info ("Quit to send DbDesc to neighbor %s state %s",
+ on->name, ospf6_neighbor_state_str[on->state]);
+ return 0;
+ }
+
+ /* set next thread if master */
+ if (CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MSBIT))
+ on->thread_send_dbdesc =
+ thread_add_timer (master, ospf6_dbdesc_send, on,
+ on->ospf6_if->rxmt_interval);
+
+ memset (sendbuf, 0, sizeof (sendbuf));
+ oh = (struct ospf6_header *) sendbuf;
+ dbdesc = (struct ospf6_dbdesc *)((caddr_t) oh +
+ sizeof (struct ospf6_header));
+
+ /* if this is initial one, initialize sequence number for DbDesc */
+ if (CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_IBIT))
+ {
+ struct timeval tv;
+ if (gettimeofday (&tv, (struct timezone *) NULL) < 0)
+ tv.tv_sec = 1;
+ on->dbdesc_seqnum = tv.tv_sec;
+ }
+
+ dbdesc->options[0] = on->ospf6_if->area->options[0];
+ dbdesc->options[1] = on->ospf6_if->area->options[1];
+ dbdesc->options[2] = on->ospf6_if->area->options[2];
+ dbdesc->ifmtu = htons (on->ospf6_if->ifmtu);
+ dbdesc->bits = on->dbdesc_bits;
+ dbdesc->seqnum = htonl (on->dbdesc_seqnum);
+
+ /* if this is not initial one, set LSA headers in dbdesc */
+ p = (char *)((caddr_t) dbdesc + sizeof (struct ospf6_dbdesc));
+ if (! CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_IBIT))
+ {
+ for (lsa = ospf6_lsdb_head (on->dbdesc_list); lsa;
+ lsa = ospf6_lsdb_next (lsa))
+ {
+ ospf6_lsa_age_update_to_send (lsa, on->ospf6_if->transdelay);
+
+ /* MTU check */
+ if (p - sendbuf + sizeof (struct ospf6_lsa_header) >
+ on->ospf6_if->ifmtu)
+ {
+ ospf6_lsa_unlock (lsa);
+ break;
+ }
+ memcpy (p, lsa->header, sizeof (struct ospf6_lsa_header));
+ p += sizeof (struct ospf6_lsa_header);
+ }
+ }
+
+ oh->type = OSPF6_MESSAGE_TYPE_DBDESC;
+ oh->length = htons (p - sendbuf);
+
+ ospf6_send (on->ospf6_if->linklocal_addr, &on->linklocal_addr,
+ on->ospf6_if, oh);
+ return 0;
+}
+
+int
+ospf6_dbdesc_send_newone (struct thread *thread)
+{
+ struct ospf6_neighbor *on;
+ struct ospf6_lsa *lsa;
+ unsigned int size = 0;
+
+ on = (struct ospf6_neighbor *) THREAD_ARG (thread);
+ if (IS_OSPF6_DEBUG_LSA (DATABASE))
+ zlog_info ("Remove entire dbdesc_list of %s: sending newone", on->name);
+ ospf6_lsdb_remove_all (on->dbdesc_list);
+
+ /* move LSAs from summary_list to dbdesc_list (within neighbor structure)
+ so that ospf6_send_dbdesc () can send those LSAs */
+ size = sizeof (struct ospf6_lsa_header) + sizeof (struct ospf6_dbdesc);
+ for (lsa = ospf6_lsdb_head (on->summary_list); lsa;
+ lsa = ospf6_lsdb_next (lsa))
+ {
+ if (size + sizeof (struct ospf6_lsa_header) > on->ospf6_if->ifmtu)
+ {
+ ospf6_lsa_unlock (lsa);
+ break;
+ }
+
+ if (IS_OSPF6_DEBUG_LSA (DATABASE))
+ zlog_info ("Move %s from summary_list to dbdesc_list of %s",
+ lsa->name, on->name);
+ ospf6_lsdb_add (ospf6_lsa_copy (lsa), on->dbdesc_list);
+ ospf6_lsdb_remove (lsa, on->summary_list);
+ size += sizeof (struct ospf6_lsa_header);
+ }
+
+ if (on->summary_list->count == 0)
+ UNSET_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MBIT);
+
+ /* If slave, More bit check must be done here */
+ if (! CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MSBIT) && /* Slave */
+ ! CHECK_FLAG (on->dbdesc_last.bits, OSPF6_DBDESC_MBIT) &&
+ ! CHECK_FLAG (on->dbdesc_bits, OSPF6_DBDESC_MBIT))
+ thread_add_event (master, exchange_done, on, 0);
+
+ thread_execute (master, ospf6_dbdesc_send, on, 0);
+ return 0;
+}
+
+int
+ospf6_lsreq_send (struct thread *thread)
+{
+ struct ospf6_neighbor *on;
+ struct ospf6_header *oh;
+ struct ospf6_lsreq_entry *e;
+ char *p;
+ struct ospf6_lsa *lsa;
+
+ on = (struct ospf6_neighbor *) THREAD_ARG (thread);
+ on->thread_send_lsreq = (struct thread *) NULL;
+
+ /* LSReq will be sent only in ExStart or Loading */
+ if (on->state != OSPF6_NEIGHBOR_EXCHANGE &&
+ on->state != OSPF6_NEIGHBOR_LOADING)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSREQ, SEND))
+ zlog_info ("Quit to send LSReq to neighbor %s state %s",
+ on->name, ospf6_neighbor_state_str[on->state]);
+ return 0;
+ }
+
+ /* schedule loading_done if request list is empty */
+ if (on->request_list->count == 0)
+ {
+ thread_add_event (master, loading_done, on, 0);
+ return 0;
+ }
+
+ /* set next thread */
+ on->thread_send_lsreq =
+ thread_add_timer (master, ospf6_lsreq_send, on,
+ on->ospf6_if->rxmt_interval);
+
+ memset (sendbuf, 0, sizeof (sendbuf));
+ oh = (struct ospf6_header *) sendbuf;
+
+ /* set Request entries in lsreq */
+ p = (char *)((caddr_t) oh + sizeof (struct ospf6_header));
+ for (lsa = ospf6_lsdb_head (on->request_list); lsa;
+ lsa = ospf6_lsdb_next (lsa))
+ {
+ /* MTU check */
+ if (p - sendbuf + sizeof (struct ospf6_lsreq_entry) > on->ospf6_if->ifmtu)
+ {
+ ospf6_lsa_unlock (lsa);
+ break;
+ }
+
+ e = (struct ospf6_lsreq_entry *) p;
+ e->type = lsa->header->type;
+ e->id = lsa->header->id;
+ e->adv_router = lsa->header->adv_router;
+ p += sizeof (struct ospf6_lsreq_entry);
+ }
+
+ oh->type = OSPF6_MESSAGE_TYPE_LSREQ;
+ oh->length = htons (p - sendbuf);
+
+ ospf6_send (on->ospf6_if->linklocal_addr, &on->linklocal_addr,
+ on->ospf6_if, oh);
+ return 0;
+}
+
+int
+ospf6_lsupdate_send_neighbor (struct thread *thread)
+{
+ struct ospf6_neighbor *on;
+ struct ospf6_header *oh;
+ struct ospf6_lsupdate *lsupdate;
+ char *p;
+ int num;
+ struct ospf6_lsa *lsa;
+
+ on = (struct ospf6_neighbor *) THREAD_ARG (thread);
+ on->thread_send_lsupdate = (struct thread *) NULL;
+
+ if (on->state < OSPF6_NEIGHBOR_EXCHANGE)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSUPDATE, SEND))
+ zlog_info ("Quit to send LSUpdate to neighbor %s state %s",
+ on->name, ospf6_neighbor_state_str[on->state]);
+ return 0;
+ }
+
+ /* if we have nothing to send, return */
+ if (on->lsupdate_list->count == 0 &&
+ on->retrans_list->count == 0)
+ return 0;
+
+ if (IS_OSPF6_DEBUG_LSA (SEND))
+ zlog_info ("LSA Send to %s", on->name);
+
+ memset (sendbuf, 0, sizeof (sendbuf));
+ oh = (struct ospf6_header *) sendbuf;
+ lsupdate = (struct ospf6_lsupdate *)
+ ((caddr_t) oh + sizeof (struct ospf6_header));
+
+ p = (char *)((caddr_t) lsupdate + sizeof (struct ospf6_lsupdate));
+ num = 0;
+
+ /* lsupdate_list lists those LSA which doesn't need to be
+ retransmitted. remove those from the list */
+ for (lsa = ospf6_lsdb_head (on->lsupdate_list); lsa;
+ lsa = ospf6_lsdb_next (lsa))
+ {
+ /* MTU check */
+ if (p - sendbuf + OSPF6_LSA_SIZE (lsa->header) > on->ospf6_if->ifmtu)
+ {
+ ospf6_lsa_unlock (lsa);
+ break;
+ }
+
+ if (IS_OSPF6_DEBUG_LSA (SEND))
+ ospf6_lsa_header_print (lsa);
+
+ ospf6_lsa_age_update_to_send (lsa, on->ospf6_if->transdelay);
+ memcpy (p, lsa->header, OSPF6_LSA_SIZE (lsa->header));
+ p += OSPF6_LSA_SIZE (lsa->header);
+ num++;
+
+ assert (lsa->lock == 2);
+ ospf6_lsdb_remove (lsa, on->lsupdate_list);
+ }
+
+ for (lsa = ospf6_lsdb_head (on->retrans_list); lsa;
+ lsa = ospf6_lsdb_next (lsa))
+ {
+ /* MTU check */
+ if (p - sendbuf + OSPF6_LSA_SIZE (lsa->header) > on->ospf6_if->ifmtu)
+ {
+ ospf6_lsa_unlock (lsa);
+ break;
+ }
+
+ if (IS_OSPF6_DEBUG_LSA (SEND))
+ ospf6_lsa_header_print (lsa);
+
+ ospf6_lsa_age_update_to_send (lsa, on->ospf6_if->transdelay);
+ memcpy (p, lsa->header, OSPF6_LSA_SIZE (lsa->header));
+ p += OSPF6_LSA_SIZE (lsa->header);
+ num++;
+ }
+
+ lsupdate->lsa_number = htonl (num);
+
+ oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE;
+ oh->length = htons (p - sendbuf);
+
+ ospf6_send (on->ospf6_if->linklocal_addr, &on->linklocal_addr,
+ on->ospf6_if, oh);
+
+ if (on->lsupdate_list->count != 0 ||
+ on->retrans_list->count != 0)
+ {
+ if (on->lsupdate_list->count != 0)
+ on->thread_send_lsupdate =
+ thread_add_event (master, ospf6_lsupdate_send_neighbor, on, 0);
+ else
+ on->thread_send_lsupdate =
+ thread_add_timer (master, ospf6_lsupdate_send_neighbor, on,
+ on->ospf6_if->rxmt_interval);
+ }
+
+ return 0;
+}
+
+int
+ospf6_lsupdate_send_interface (struct thread *thread)
+{
+ struct ospf6_interface *oi;
+ struct ospf6_header *oh;
+ struct ospf6_lsupdate *lsupdate;
+ char *p;
+ int num;
+ struct ospf6_lsa *lsa;
+
+ oi = (struct ospf6_interface *) THREAD_ARG (thread);
+ oi->thread_send_lsupdate = (struct thread *) NULL;
+
+ if (oi->state <= OSPF6_INTERFACE_WAITING)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSUPDATE, SEND))
+ zlog_info ("Quit to send LSUpdate to interface %s state %s",
+ oi->interface->name, ospf6_interface_state_str[oi->state]);
+ return 0;
+ }
+
+ /* if we have nothing to send, return */
+ if (oi->lsupdate_list->count == 0)
+ return 0;
+
+ if (IS_OSPF6_DEBUG_LSA (SEND))
+ zlog_info ("LSA Send to %s", oi->interface->name);
+
+ memset (sendbuf, 0, sizeof (sendbuf));
+ oh = (struct ospf6_header *) sendbuf;
+ lsupdate = (struct ospf6_lsupdate *)((caddr_t) oh +
+ sizeof (struct ospf6_header));
+
+ p = (char *)((caddr_t) lsupdate + sizeof (struct ospf6_lsupdate));
+ num = 0;
+
+ for (lsa = ospf6_lsdb_head (oi->lsupdate_list); lsa;
+ lsa = ospf6_lsdb_next (lsa))
+ {
+ /* MTU check */
+ if (p - sendbuf + OSPF6_LSA_SIZE (lsa->header) > oi->ifmtu)
+ {
+ ospf6_lsa_unlock (lsa);
+ break;
+ }
+
+ if (IS_OSPF6_DEBUG_LSA (SEND))
+ ospf6_lsa_header_print (lsa);
+
+ ospf6_lsa_age_update_to_send (lsa, oi->transdelay);
+ memcpy (p, lsa->header, OSPF6_LSA_SIZE (lsa->header));
+ p += OSPF6_LSA_SIZE (lsa->header);
+ num++;
+
+ assert (lsa->lock == 2);
+ ospf6_lsdb_remove (lsa, oi->lsupdate_list);
+ }
+
+ lsupdate->lsa_number = htonl (num);
+
+ oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE;
+ oh->length = htons (p - sendbuf);
+
+ if (oi->state == OSPF6_INTERFACE_DR ||
+ oi->state == OSPF6_INTERFACE_BDR)
+ ospf6_send (oi->linklocal_addr, &allspfrouters6, oi, oh);
+ else
+ ospf6_send (oi->linklocal_addr, &alldrouters6, oi, oh);
+
+ if (oi->lsupdate_list->count > 0)
+ {
+ oi->thread_send_lsupdate =
+ thread_add_event (master, ospf6_lsupdate_send_interface, oi, 0);
+ }
+
+ return 0;
+}
+
+int
+ospf6_lsack_send_neighbor (struct thread *thread)
+{
+ struct ospf6_neighbor *on;
+ struct ospf6_header *oh;
+ char *p;
+ struct ospf6_lsa *lsa;
+
+ on = (struct ospf6_neighbor *) THREAD_ARG (thread);
+ on->thread_send_lsack = (struct thread *) NULL;
+
+ if (on->state < OSPF6_NEIGHBOR_EXCHANGE)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSACK, SEND))
+ zlog_info ("Quit to send LSAck to neighbor %s state %s",
+ on->name, ospf6_neighbor_state_str[on->state]);
+ return 0;
+ }
+
+ /* if we have nothing to send, return */
+ if (on->lsack_list->count == 0)
+ return 0;
+
+ memset (sendbuf, 0, sizeof (sendbuf));
+ oh = (struct ospf6_header *) sendbuf;
+
+ p = (char *)((caddr_t) oh + sizeof (struct ospf6_header));
+
+ for (lsa = ospf6_lsdb_head (on->lsack_list); lsa;
+ lsa = ospf6_lsdb_next (lsa))
+ {
+ /* MTU check */
+ if (p - sendbuf + sizeof (struct ospf6_lsa_header) > on->ospf6_if->ifmtu)
+ {
+ /* if we run out of packet size/space here,
+ better to try again soon. */
+ THREAD_OFF (on->thread_send_lsack);
+ on->thread_send_lsack =
+ thread_add_event (master, ospf6_lsack_send_neighbor, on, 0);
+
+ ospf6_lsa_unlock (lsa);
+ break;
+ }
+
+ ospf6_lsa_age_update_to_send (lsa, on->ospf6_if->transdelay);
+ memcpy (p, lsa->header, sizeof (struct ospf6_lsa_header));
+ p += sizeof (struct ospf6_lsa_header);
+
+ assert (lsa->lock == 2);
+ ospf6_lsdb_remove (lsa, on->lsack_list);
+ }
+
+ oh->type = OSPF6_MESSAGE_TYPE_LSACK;
+ oh->length = htons (p - sendbuf);
+
+ ospf6_send (on->ospf6_if->linklocal_addr, &on->linklocal_addr,
+ on->ospf6_if, oh);
+ return 0;
+}
+
+int
+ospf6_lsack_send_interface (struct thread *thread)
+{
+ struct ospf6_interface *oi;
+ struct ospf6_header *oh;
+ char *p;
+ struct ospf6_lsa *lsa;
+
+ oi = (struct ospf6_interface *) THREAD_ARG (thread);
+ oi->thread_send_lsack = (struct thread *) NULL;
+
+ if (oi->state <= OSPF6_INTERFACE_WAITING)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_LSACK, SEND))
+ zlog_info ("Quit to send LSAck to interface %s state %s",
+ oi->interface->name, ospf6_interface_state_str[oi->state]);
+ return 0;
+ }
+
+ /* if we have nothing to send, return */
+ if (oi->lsack_list->count == 0)
+ return 0;
+
+ memset (sendbuf, 0, sizeof (sendbuf));
+ oh = (struct ospf6_header *) sendbuf;
+
+ p = (char *)((caddr_t) oh + sizeof (struct ospf6_header));
+
+ for (lsa = ospf6_lsdb_head (oi->lsack_list); lsa;
+ lsa = ospf6_lsdb_next (lsa))
+ {
+ /* MTU check */
+ if (p - sendbuf + sizeof (struct ospf6_lsa_header) > oi->ifmtu)
+ {
+ /* if we run out of packet size/space here,
+ better to try again soon. */
+ THREAD_OFF (oi->thread_send_lsack);
+ oi->thread_send_lsack =
+ thread_add_event (master, ospf6_lsack_send_interface, oi, 0);
+
+ ospf6_lsa_unlock (lsa);
+ break;
+ }
+
+ ospf6_lsa_age_update_to_send (lsa, oi->transdelay);
+ memcpy (p, lsa->header, sizeof (struct ospf6_lsa_header));
+ p += sizeof (struct ospf6_lsa_header);
+
+ assert (lsa->lock == 2);
+ ospf6_lsdb_remove (lsa, oi->lsack_list);
+ }
+
+ oh->type = OSPF6_MESSAGE_TYPE_LSACK;
+ oh->length = htons (p - sendbuf);
+
+ if (oi->state == OSPF6_INTERFACE_DR ||
+ oi->state == OSPF6_INTERFACE_BDR)
+ ospf6_send (oi->linklocal_addr, &allspfrouters6, oi, oh);
+ else
+ ospf6_send (oi->linklocal_addr, &alldrouters6, oi, oh);
+
+ if (oi->thread_send_lsack == NULL && oi->lsack_list->count > 0)
+ {
+ oi->thread_send_lsack =
+ thread_add_event (master, ospf6_lsack_send_interface, oi, 0);
+ }
return 0;
}
-/* send section */
-int
-ospf6_message_length (struct iovec *message)
+/* Commands */
+DEFUN (debug_ospf6_message,
+ debug_ospf6_message_cmd,
+ "debug ospf6 message (unknown|hello|dbdesc|lsreq|lsupdate|lsack|all)",
+ DEBUG_STR
+ OSPF6_STR
+ "Debug OSPFv3 message\n"
+ "Debug Unknown message\n"
+ "Debug Hello message\n"
+ "Debug Database Description message\n"
+ "Debug Link State Request message\n"
+ "Debug Link State Update message\n"
+ "Debug Link State Acknowledgement message\n"
+ "Debug All message\n"
+ )
{
- int i, length = 0;
- for (i = 0; i < OSPF6_MESSAGE_IOVEC_SIZE; i++)
- {
- if (message[i].iov_base == NULL && message[i].iov_len == 0)
- break;
- length += message[i].iov_len;
- }
- return length;
-}
-#define OSPF6_MESSAGE_LENGTH(msg) \
-(ospf6_message_length (msg))
-
-void
-ospf6_message_send (unsigned char type, struct iovec *msg,
- struct in6_addr *dst, u_int ifindex)
-{
- struct ospf6_interface *o6i;
- struct ospf6_header ospf6_header;
- char dst_name[64], src_name[64];
- struct iovec message[OSPF6_MESSAGE_IOVEC_SIZE];
- int msg_len;
-
- /* ospf6 interface lookup */
- o6i = ospf6_interface_lookup_by_index (ifindex);
- assert (o6i);
-
- msg_len = OSPF6_MESSAGE_LENGTH (msg);
-
- /* I/F MTU check */
-#if 0
- if (msg_len + sizeof (struct ospf6_header) >= o6i->interface->mtu)
-#else
- if (msg_len + sizeof (struct ospf6_header) >= o6i->ifmtu)
-#endif
- {
- /* If Interface MTU is 0, save the case
- since zebra had been failed to get MTU from Kernel */
- if (o6i->interface->mtu != 0)
- {
- zlog_warn ("Message: Send failed on %s: exceeds I/F MTU",
- o6i->interface->name);
- zlog_warn ("Message: while sending %s: Len:%d MTU:%d",
- ospf6_message_type_string[type],
- msg_len + sizeof (struct ospf6_header),
- o6i->ifmtu);
- return;
- }
- else
- {
- zlog_warn ("Message: I/F MTU check ignored on %s",
- o6i->interface->name);
- }
- }
-
- /* Initialize */
- OSPF6_MESSAGE_CLEAR (message);
-
- /* set OSPF header */
- memset (&ospf6_header, 0, sizeof (ospf6_header));
- ospf6_header.version = OSPF6_VERSION;
- ospf6_header.type = type;
- ospf6_header.len = htons (msg_len + sizeof (struct ospf6_header));
- ospf6_header.router_id = ospf6->router_id;
- ospf6_header.area_id = o6i->area->area_id;
- /* checksum is calculated by kernel */
- ospf6_header.instance_id = o6i->instance_id;
- ospf6_header.reserved = 0;
- OSPF6_MESSAGE_ATTACH (message, &ospf6_header, sizeof (struct ospf6_header));
-
- /* Attach rest to message */
- OSPF6_MESSAGE_JOIN (message, msg);
-
- /* statistics */
- if (type >= OSPF6_MESSAGE_TYPE_MAX)
- type = OSPF6_MESSAGE_TYPE_UNKNOWN;
- o6i->message_stat[type].send++;
- o6i->message_stat[type].send_octet += ntohs (ospf6_header.len);
-
- /* log */
- if (IS_OSPF6_DUMP_MESSAGE (type))
- {
- inet_ntop (AF_INET6, dst, dst_name, sizeof (dst_name));
- if (o6i->lladdr)
- inet_ntop (AF_INET6, o6i->lladdr, src_name, sizeof (src_name));
- else
- strcpy (src_name, "Unknown");
- zlog_info ("Send %s on %s",
- ospf6_message_type_string[type], o6i->interface->name);
- zlog_info (" %s -> %s", src_name, dst_name);
- ospf6_message_log (message);
- }
-
- /* send message */
- ospf6_sendmsg (o6i->lladdr, dst, &ifindex, message);
-}
-
-
-int
-ospf6_send_hello (struct thread *thread)
-{
- listnode n;
- struct ospf6_interface *o6i;
- struct ospf6_neighbor *o6n;
- struct in6_addr dst;
- struct iovec message[OSPF6_MESSAGE_IOVEC_SIZE];
- struct ospf6_hello hello;
- char router_buffer[1024]; /* xxx */
- u_int router_size;
-
- /* which ospf6 interface to send */
- o6i = (struct ospf6_interface *) THREAD_ARG (thread);
- o6i->thread_send_hello = (struct thread *) NULL;
-
- /* assure interface is up */
- if (o6i->state <= IFS_DOWN)
- {
- if (IS_OSPF6_DUMP_HELLO)
- zlog_warn ("Send HELLO Failed: Interface not enabled: %s",
- o6i->interface->name);
- return 0;
- }
-
- /* clear message buffer */
- OSPF6_MESSAGE_CLEAR (message);
-
- /* set Hello fields */
- hello.interface_id = htonl (o6i->if_id);
- hello.rtr_pri = o6i->priority;
- memcpy (hello.options, o6i->area->options, sizeof (hello.options));
- hello.hello_interval = htons (o6i->hello_interval);
- hello.router_dead_interval = htons (o6i->dead_interval);
- hello.dr = o6i->dr;
- hello.bdr = o6i->bdr;
- OSPF6_MESSAGE_ATTACH (message, &hello, sizeof (struct ospf6_hello));
-
- /* set neighbor router id */
- router_size = 0;
- for (n = listhead (o6i->neighbor_list); n; nextnode (n))
- {
- o6n = (struct ospf6_neighbor *) getdata (n);
-
- if (o6n->state < NBS_INIT)
- continue;
-
- if (router_size + sizeof (o6n->router_id) > sizeof (router_buffer))
- {
- zlog_warn ("Send HELLO: Buffer shortage on %s",
- o6i->interface->name);
- break;
- }
-
- /* Copy Router-ID to Buffer */
- memcpy (router_buffer + router_size, &o6n->router_id,
- sizeof (o6n->router_id));
- router_size += sizeof (o6n->router_id);
- }
- OSPF6_MESSAGE_ATTACH (message, router_buffer, router_size);
-
- /* set destionation */
- inet_pton (AF_INET6, ALLSPFROUTERS6, &dst);
-
- /* send hello */
- ospf6_message_send (OSPF6_MESSAGE_TYPE_HELLO, message, &dst,
- o6i->interface->ifindex);
-
- /* set next timer thread */
- o6i->thread_send_hello = thread_add_timer (master, ospf6_send_hello,
- o6i, o6i->hello_interval);
-
- return 0;
-}
-
-void
-ospf6_dbdesc_seqnum_init (struct ospf6_neighbor *o6n)
-{
- struct timeval tv;
-
- if (gettimeofday (&tv, (struct timezone *) NULL) < 0)
- tv.tv_sec = 1;
-
- o6n->dbdesc_seqnum = tv.tv_sec;
-
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info ("set dbdesc seqnum %d for %s", o6n->dbdesc_seqnum, o6n->str);
-}
-
-int
-ospf6_send_dbdesc_rxmt (struct thread *thread)
-{
- struct ospf6_lsdb_node node;
- struct ospf6_neighbor *o6n;
- struct iovec message[OSPF6_MESSAGE_IOVEC_SIZE];
- struct ospf6_lsa *lsa;
- struct ospf6_lsa_header *lsa_header;
- struct ospf6_dbdesc dbdesc;
-
- o6n = (struct ospf6_neighbor *) THREAD_ARG (thread);
- assert (o6n);
-
- /* clear thread */
- o6n->thread_rxmt_dbdesc = (struct thread *) NULL;
-
- /* if state less than ExStart, do nothing */
- if (o6n->state < NBS_EXSTART)
- return 0;
-
- OSPF6_MESSAGE_CLEAR (message);
-
- /* set dbdesc */
- memcpy (dbdesc.options, o6n->ospf6_interface->area->options,
- sizeof (dbdesc.options));
- dbdesc.ifmtu = htons (o6n->ospf6_interface->interface->mtu);
- dbdesc.bits = o6n->dbdesc_bits;
- dbdesc.seqnum = htonl (o6n->dbdesc_seqnum);
- OSPF6_MESSAGE_ATTACH (message, &dbdesc, sizeof (struct ospf6_dbdesc));
-
- /* if this is not initial, set LSA summary to dbdesc */
- if (! DD_IS_IBIT_SET (o6n->dbdesc_bits))
- {
- for (ospf6_lsdb_head (&node, o6n->dbdesc_list);
- ! ospf6_lsdb_is_end (&node); ospf6_lsdb_next (&node))
- {
- lsa = node.lsa;
-
- /* xxx, no MTU check: no support for Dynamic MTU change */
-
- /* set age and add InfTransDelay */
- ospf6_lsa_age_update_to_send (lsa, o6n->ospf6_interface->transdelay);
-
- /* set LSA summary to send buffer */
- lsa_header = (struct ospf6_lsa_header *) lsa->lsa_hdr;
- OSPF6_MESSAGE_ATTACH (message, lsa_header,
- sizeof (struct ospf6_lsa_header));
- }
- }
-
- /* send dbdesc */
- ospf6_message_send (OSPF6_MESSAGE_TYPE_DBDESC, message, &o6n->hisaddr,
- o6n->ospf6_interface->interface->ifindex);
-
- /* if master, set futher retransmission */
- if (DD_IS_MSBIT_SET (o6n->dbdesc_bits))
- o6n->thread_rxmt_dbdesc =
- thread_add_timer (master, ospf6_send_dbdesc_rxmt,
- o6n, o6n->ospf6_interface->rxmt_interval);
-
- /* statistics */
- o6n->ospf6_stat_retrans_dbdesc++;
-
- return 0;
-}
-
-int
-ospf6_send_dbdesc (struct thread *thread)
-{
- struct ospf6_neighbor *o6n;
- struct ospf6_lsa *lsa;
- struct iovec message[OSPF6_MESSAGE_IOVEC_SIZE];
- struct ospf6_dbdesc dbdesc;
- struct ospf6_lsdb_node node;
-
- o6n = (struct ospf6_neighbor *) THREAD_ARG (thread);
- assert (o6n);
-
- /* clear thread */
- o6n->thread_send_dbdesc = (struct thread *) NULL;
- if (o6n->thread_rxmt_dbdesc)
- thread_cancel (o6n->thread_rxmt_dbdesc);
- o6n->thread_rxmt_dbdesc = (struct thread *) NULL;
-
- /* if state less than ExStart, do nothing */
- if (o6n->state < NBS_EXSTART)
- return 0;
-
- OSPF6_MESSAGE_CLEAR (message);
- OSPF6_MESSAGE_ATTACH (message, &dbdesc, sizeof (struct ospf6_dbdesc));
-
- /* clear previous LSA summary sent */
- ospf6_lsdb_remove_all (o6n->dbdesc_list);
- assert (o6n->dbdesc_list->count == 0);
-
- /* if this is not initial, set LSA summary to dbdesc */
- if (! DD_IS_IBIT_SET (o6n->dbdesc_bits))
- {
- for (ospf6_lsdb_head (&node, o6n->summary_list);
- ! ospf6_lsdb_is_end (&node);
- ospf6_lsdb_next (&node))
- {
- lsa = node.lsa;
-
- /* MTU check */
- if (OSPF6_MESSAGE_LENGTH (message)
- + sizeof (struct ospf6_lsa_header)
- + sizeof (struct ospf6_header)
- > o6n->ospf6_interface->ifmtu)
- break;
-
- /* debug */
- if (IS_OSPF6_DUMP_DBDESC)
- zlog_info ("Include DbDesc: %s", lsa->str);
-
- /* attach to dbdesclist */
- ospf6_neighbor_dbdesc_add (lsa, o6n);
- /* detach from summarylist */
- ospf6_neighbor_summary_remove (lsa, o6n);
-
- /* set age and add InfTransDelay */
- ospf6_lsa_age_update_to_send (lsa, o6n->ospf6_interface->transdelay);
-
- /* set LSA summary to send buffer */
- OSPF6_MESSAGE_ATTACH (message, lsa->header,
- sizeof (struct ospf6_lsa_header));
- }
-
- if (o6n->summary_list->count == 0)
- {
- /* Clear more bit */
- DD_MBIT_CLEAR (o6n->dbdesc_bits);
-
- /* slave must schedule ExchangeDone on sending, here */
- if (! DD_IS_MSBIT_SET (o6n->dbdesc_bits))
- {
- if (! DD_IS_MBIT_SET (o6n->dbdesc_bits) &&
- ! DD_IS_MBIT_SET (o6n->last_dd.bits))
- thread_add_event (master, exchange_done, o6n, 0);
- }
- }
- }
-
- /* if this is initial, set seqnum */
- if (DDBIT_IS_INITIAL (o6n->dbdesc_bits))
- ospf6_dbdesc_seqnum_init (o6n);
-
- /* set dbdesc */
- memcpy (dbdesc.options, o6n->ospf6_interface->area->options,
- sizeof (dbdesc.options));
- dbdesc.ifmtu = htons (o6n->ospf6_interface->interface->mtu);
- dbdesc.bits = o6n->dbdesc_bits;
- dbdesc.seqnum = htonl (o6n->dbdesc_seqnum);
-
- /* send dbdesc */
- ospf6_message_send (OSPF6_MESSAGE_TYPE_DBDESC, message, &o6n->hisaddr,
- o6n->ospf6_interface->interface->ifindex);
-
- /* if master, set retransmission */
- if (DD_IS_MSBIT_SET (o6n->dbdesc_bits))
- o6n->thread_rxmt_dbdesc =
- thread_add_timer (master, ospf6_send_dbdesc_rxmt,
- o6n, o6n->ospf6_interface->rxmt_interval);
-
- /* statistics */
- o6n->lsa_send[OSPF6_MESSAGE_TYPE_DBDESC] += o6n->dbdesc_list->count;
-
- return 0;
-}
-
-int
-ospf6_send_lsreq_rxmt (struct thread *thread)
-{
- struct ospf6_neighbor *o6n;
-
- o6n = (struct ospf6_neighbor *) THREAD_ARG (thread);
- assert (o6n);
-
- o6n->thread_rxmt_lsreq = (struct thread *) NULL;
- o6n->thread_send_lsreq = thread_add_event (master, ospf6_send_lsreq, o6n, 0);
- return 0;
-}
-
-int
-ospf6_send_lsreq (struct thread *thread)
-{
- struct ospf6_neighbor *o6n;
- struct iovec message[OSPF6_MESSAGE_IOVEC_SIZE];
- struct ospf6_lsreq lsreq[OSPF6_MESSAGE_IOVEC_SIZE];
- struct ospf6_lsa *lsa;
- struct ospf6_lsdb_node node;
+ unsigned char level = 0;
+ int type = 0;
int i;
- o6n = (struct ospf6_neighbor *) THREAD_ARG (thread);
- assert (o6n);
+ assert (argc > 0);
- /* LSReq will be send only in ExStart or Loading */
- if (o6n->state != NBS_EXCHANGE && o6n->state != NBS_LOADING)
- return 0;
+ /* check type */
+ if (! strncmp (argv[0], "u", 1))
+ type = OSPF6_MESSAGE_TYPE_UNKNOWN;
+ else if (! strncmp (argv[0], "h", 1))
+ type = OSPF6_MESSAGE_TYPE_HELLO;
+ else if (! strncmp (argv[0], "d", 1))
+ type = OSPF6_MESSAGE_TYPE_DBDESC;
+ else if (! strncmp (argv[0], "lsr", 3))
+ type = OSPF6_MESSAGE_TYPE_LSREQ;
+ else if (! strncmp (argv[0], "lsu", 3))
+ type = OSPF6_MESSAGE_TYPE_LSUPDATE;
+ else if (! strncmp (argv[0], "lsa", 3))
+ type = OSPF6_MESSAGE_TYPE_LSACK;
+ else if (! strncmp (argv[0], "a", 1))
+ type = OSPF6_MESSAGE_TYPE_ALL;
- /* clear thread */
- o6n->thread_send_lsreq = (struct thread *) NULL;
- if (o6n->thread_rxmt_lsreq)
- thread_cancel (o6n->thread_rxmt_lsreq);
- o6n->thread_rxmt_lsreq = (struct thread *) NULL;
+ if (argc == 1)
+ level = OSPF6_DEBUG_MESSAGE_SEND | OSPF6_DEBUG_MESSAGE_RECV;
+ else if (! strncmp (argv[1], "s", 1))
+ level = OSPF6_DEBUG_MESSAGE_SEND;
+ else if (! strncmp (argv[1], "r", 1))
+ level = OSPF6_DEBUG_MESSAGE_RECV;
- /* schedule loading_done if request list is empty */
- if (o6n->request_list->count == 0)
+ if (type == OSPF6_MESSAGE_TYPE_ALL)
{
- thread_add_event (master, loading_done, o6n, 0);
+ for (i = 0; i < 6; i++)
+ OSPF6_DEBUG_MESSAGE_ON (i, level);
+ }
+ else
+ OSPF6_DEBUG_MESSAGE_ON (type, level);
+
+ return CMD_SUCCESS;
+}
+
+ALIAS (debug_ospf6_message,
+ debug_ospf6_message_sendrecv_cmd,
+ "debug ospf6 message (unknown|hello|dbdesc|lsreq|lsupdate|lsack|all) (send|recv)",
+ DEBUG_STR
+ OSPF6_STR
+ "Debug OSPFv3 message\n"
+ "Debug Unknown message\n"
+ "Debug Hello message\n"
+ "Debug Database Description message\n"
+ "Debug Link State Request message\n"
+ "Debug Link State Update message\n"
+ "Debug Link State Acknowledgement message\n"
+ "Debug All message\n"
+ "Debug only sending message\n"
+ "Debug only receiving message\n"
+ );
+
+
+DEFUN (no_debug_ospf6_message,
+ no_debug_ospf6_message_cmd,
+ "no debug ospf6 message (unknown|hello|dbdesc|lsreq|lsupdate|lsack|all)",
+ NO_STR
+ DEBUG_STR
+ OSPF6_STR
+ "Debug OSPFv3 message\n"
+ "Debug Unknown message\n"
+ "Debug Hello message\n"
+ "Debug Database Description message\n"
+ "Debug Link State Request message\n"
+ "Debug Link State Update message\n"
+ "Debug Link State Acknowledgement message\n"
+ "Debug All message\n"
+ )
+{
+ unsigned char level = 0;
+ int type = 0;
+ int i;
+
+ assert (argc > 0);
+
+ /* check type */
+ if (! strncmp (argv[0], "u", 1))
+ type = OSPF6_MESSAGE_TYPE_UNKNOWN;
+ else if (! strncmp (argv[0], "h", 1))
+ type = OSPF6_MESSAGE_TYPE_HELLO;
+ else if (! strncmp (argv[0], "d", 1))
+ type = OSPF6_MESSAGE_TYPE_DBDESC;
+ else if (! strncmp (argv[0], "lsr", 3))
+ type = OSPF6_MESSAGE_TYPE_LSREQ;
+ else if (! strncmp (argv[0], "lsu", 3))
+ type = OSPF6_MESSAGE_TYPE_LSUPDATE;
+ else if (! strncmp (argv[0], "lsa", 3))
+ type = OSPF6_MESSAGE_TYPE_LSACK;
+ else if (! strncmp (argv[0], "a", 1))
+ type = OSPF6_MESSAGE_TYPE_ALL;
+
+ if (argc == 1)
+ level = OSPF6_DEBUG_MESSAGE_SEND | OSPF6_DEBUG_MESSAGE_RECV;
+ else if (! strncmp (argv[1], "s", 1))
+ level = OSPF6_DEBUG_MESSAGE_SEND;
+ else if (! strncmp (argv[1], "r", 1))
+ level = OSPF6_DEBUG_MESSAGE_RECV;
+
+ if (type == OSPF6_MESSAGE_TYPE_ALL)
+ {
+ for (i = 0; i < 6; i++)
+ OSPF6_DEBUG_MESSAGE_OFF (i, level);
+ }
+ else
+ OSPF6_DEBUG_MESSAGE_OFF (type, level);
+
+ return CMD_SUCCESS;
+}
+
+ALIAS (no_debug_ospf6_message,
+ no_debug_ospf6_message_sendrecv_cmd,
+ "no debug ospf6 message (unknown|hello|dbdesc|lsreq|lsupdate|lsack|all) (send|recv)",
+ NO_STR
+ DEBUG_STR
+ OSPF6_STR
+ "Debug OSPFv3 message\n"
+ "Debug Unknown message\n"
+ "Debug Hello message\n"
+ "Debug Database Description message\n"
+ "Debug Link State Request message\n"
+ "Debug Link State Update message\n"
+ "Debug Link State Acknowledgement message\n"
+ "Debug All message\n"
+ "Debug only sending message\n"
+ "Debug only receiving message\n"
+ );
+
+int
+config_write_ospf6_debug_message (struct vty *vty)
+{
+ char *type_str[] = {"unknown", "hello", "dbdesc",
+ "lsreq", "lsupdate", "lsack"};
+ unsigned char s = 0, r = 0;
+ int i;
+
+ for (i = 0; i < 6; i++)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (i, SEND))
+ s |= 1 << i;
+ if (IS_OSPF6_DEBUG_MESSAGE (i, RECV))
+ r |= 1 << i;
+ }
+
+ if (s == 0x3f && r == 0x3f)
+ {
+ vty_out (vty, "debug ospf6 message all%s", VTY_NEWLINE);
return 0;
}
- /* clear message buffer */
- OSPF6_MESSAGE_CLEAR (message);
-
- i = 0;
- for (ospf6_lsdb_head (&node, o6n->request_list);
- ! ospf6_lsdb_is_end (&node); ospf6_lsdb_next (&node))
+ if (s == 0x3f && r == 0)
{
- lsa = node.lsa;
-
- /* Buffer Overflow */
- if (i >= OSPF6_MESSAGE_IOVEC_SIZE)
- break;
-
- /* I/F MTU check */
- if (OSPF6_MESSAGE_LENGTH (message)
- + sizeof (struct ospf6_lsreq)
- + sizeof (struct ospf6_header)
- > o6n->ospf6_interface->ifmtu)
- break;
-
- lsreq[i].mbz = 0;
- lsreq[i].type = lsa->header->type;
- lsreq[i].id = lsa->header->id;
- lsreq[i].adv_router = lsa->header->adv_router;
-
- OSPF6_MESSAGE_ATTACH (message, &lsreq[i], sizeof (struct ospf6_lsreq));
- i++;
+ vty_out (vty, "debug ospf6 message all send%s", VTY_NEWLINE);
+ return 0;
+ }
+ else if (s == 0 && r == 0x3f)
+ {
+ vty_out (vty, "debug ospf6 message all recv%s", VTY_NEWLINE);
+ return 0;
}
- ospf6_message_send (OSPF6_MESSAGE_TYPE_LSREQ, message, &o6n->hisaddr,
- o6n->ospf6_interface->interface->ifindex);
+ /* Unknown message is logged by default */
+ if (! IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, SEND) &&
+ ! IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, RECV))
+ vty_out (vty, "no debug ospf6 message unknown%s", VTY_NEWLINE);
+ else if (! IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, SEND))
+ vty_out (vty, "no debug ospf6 message unknown send%s", VTY_NEWLINE);
+ else if (! IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_UNKNOWN, RECV))
+ vty_out (vty, "no debug ospf6 message unknown recv%s", VTY_NEWLINE);
- /* set retransmit thread */
- o6n->thread_rxmt_lsreq =
- thread_add_timer (master, ospf6_send_lsreq_rxmt,
- o6n, o6n->ospf6_interface->rxmt_interval);
-
- /* statistics */
- o6n->lsa_send[OSPF6_MESSAGE_TYPE_LSREQ] += i;
+ for (i = 1; i < 6; i++)
+ {
+ if (IS_OSPF6_DEBUG_MESSAGE (i, SEND) &&
+ IS_OSPF6_DEBUG_MESSAGE (i, RECV))
+ vty_out (vty, "debug ospf6 message %s%s", type_str[i], VTY_NEWLINE);
+ else if (IS_OSPF6_DEBUG_MESSAGE (i, SEND))
+ vty_out (vty, "debug ospf6 message %s send%s", type_str[i],
+ VTY_NEWLINE);
+ else if (IS_OSPF6_DEBUG_MESSAGE (i, RECV))
+ vty_out (vty, "debug ospf6 message %s recv%s", type_str[i],
+ VTY_NEWLINE);
+ }
return 0;
}
-/* Send LSUpdate directly to the neighbor, from his retransmission list */
-int
-ospf6_send_lsupdate_rxmt (struct thread *thread)
-{
- struct ospf6_neighbor *o6n;
- struct iovec message[OSPF6_MESSAGE_IOVEC_SIZE];
- struct ospf6_lsupdate lsupdate;
- struct ospf6_lsa *lsa;
- struct ospf6_lsdb_node node;
-
- o6n = (struct ospf6_neighbor *) THREAD_ARG (thread);
- assert (o6n);
-
- o6n->send_update = (struct thread *) NULL;
-
- if (o6n->ospf6_interface->state <= IFS_WAITING)
- return -1;
-
- /* clear message buffer */
- OSPF6_MESSAGE_CLEAR (message);
-
- /* set lsupdate header */
- lsupdate.lsupdate_num = 0; /* set gradually */
- OSPF6_MESSAGE_ATTACH (message, &lsupdate, sizeof (struct ospf6_lsupdate));
-
- /* for each LSA listed on retransmission-list */
- for (ospf6_lsdb_head (&node, o6n->retrans_list);
- ! ospf6_lsdb_is_end (&node);
- ospf6_lsdb_next (&node))
- {
- lsa = node.lsa;
-
- /* I/F MTU check */
- if (OSPF6_MESSAGE_LENGTH (message)
- + sizeof (struct ospf6_lsupdate)
- + sizeof (struct ospf6_header)
- + ntohs (lsa->header->length)
- > o6n->ospf6_interface->ifmtu)
- break;
-
- ospf6_lsa_age_update_to_send (lsa, o6n->ospf6_interface->transdelay);
- OSPF6_MESSAGE_ATTACH (message, lsa->header, ntohs (lsa->header->length));
- lsupdate.lsupdate_num++;
- }
-
- /* check and correct lsupdate */
- if (lsupdate.lsupdate_num == 0)
- return 0;
- lsupdate.lsupdate_num = htonl (lsupdate.lsupdate_num);
-
- if (IS_OSPF6_DUMP_LSUPDATE)
- zlog_info ("MESSAGE: retrsnsmit LSUpdate to %s", o6n->str);
-
- /* statistics */
- o6n->ospf6_stat_retrans_lsupdate++;
-
- ospf6_message_send (OSPF6_MESSAGE_TYPE_LSUPDATE, message,
- &o6n->hisaddr, o6n->ospf6_interface->if_id);
-
- o6n->send_update = thread_add_timer (master, ospf6_send_lsupdate_rxmt, o6n,
- o6n->ospf6_interface->rxmt_interval);
- return 0;
-}
-
-/* Send LSUpdate containing one LSA directly to the neighbor.
- This is "implied acknowledgement" */
void
-ospf6_send_lsupdate_direct (struct ospf6_lsa *lsa, struct ospf6_neighbor *o6n)
+install_element_ospf6_debug_message ()
{
- struct iovec message[OSPF6_MESSAGE_IOVEC_SIZE];
- struct ospf6_lsupdate lsupdate;
- int lsa_len;
-
- /* clear message buffer */
- OSPF6_MESSAGE_CLEAR (message);
-
- /* set lsupdate header */
- lsupdate.lsupdate_num = ntohl (1);
- OSPF6_MESSAGE_ATTACH (message, &lsupdate, sizeof (struct ospf6_lsupdate));
-
- /* set one LSA */
- lsa_len = ntohs (lsa->lsa_hdr->lsh_len);
- ospf6_lsa_age_update_to_send (lsa, o6n->ospf6_interface->transdelay);
- OSPF6_MESSAGE_ATTACH (message, lsa->lsa_hdr, lsa_len);
-
- ospf6_message_send (OSPF6_MESSAGE_TYPE_LSUPDATE, message, &o6n->hisaddr,
- o6n->ospf6_interface->if_id);
+ install_element (ENABLE_NODE, &debug_ospf6_message_cmd);
+ install_element (ENABLE_NODE, &no_debug_ospf6_message_cmd);
+ install_element (ENABLE_NODE, &debug_ospf6_message_sendrecv_cmd);
+ install_element (ENABLE_NODE, &no_debug_ospf6_message_sendrecv_cmd);
+ install_element (CONFIG_NODE, &debug_ospf6_message_cmd);
+ install_element (CONFIG_NODE, &no_debug_ospf6_message_cmd);
+ install_element (CONFIG_NODE, &debug_ospf6_message_sendrecv_cmd);
+ install_element (CONFIG_NODE, &no_debug_ospf6_message_sendrecv_cmd);
}
-/* Send LSUpdate containing one LSA by multicast.
- On non-broadcast link, send it to each neighbor by unicast.
- This is ordinary flooding */
-void
-ospf6_send_lsupdate_flood (struct ospf6_lsa *lsa, struct ospf6_interface *o6i)
-{
- struct iovec message[OSPF6_MESSAGE_IOVEC_SIZE];
- struct ospf6_lsupdate lsupdate;
- struct in6_addr dst;
- int lsa_len;
-
- /* clear message buffer */
- OSPF6_MESSAGE_CLEAR (message);
-
- /* set lsupdate header */
- lsupdate.lsupdate_num = ntohl (1);
- OSPF6_MESSAGE_ATTACH (message, &lsupdate, sizeof (struct ospf6_lsupdate));
-
- /* set one LSA */
- lsa_len = ntohs (lsa->lsa_hdr->lsh_len);
- ospf6_lsa_age_update_to_send (lsa, o6i->transdelay);
- OSPF6_MESSAGE_ATTACH (message, lsa->lsa_hdr, lsa_len);
-
- if (if_is_broadcast (o6i->interface))
- {
- /* set destination */
- if (o6i->state == IFS_DR || o6i->state == IFS_BDR)
- inet_pton (AF_INET6, ALLSPFROUTERS6, &dst);
- else
- inet_pton (AF_INET6, ALLDROUTERS6, &dst);
- }
- else
- {
- /* IPv6 relies on link local multicast */
- inet_pton (AF_INET6, ALLSPFROUTERS6, &dst);
- }
-
- ospf6_message_send (OSPF6_MESSAGE_TYPE_LSUPDATE, message, &dst,
- o6i->if_id);
-}
-
-int
-ospf6_send_lsack_delayed (struct thread *thread)
-{
- struct ospf6_interface *o6i;
- struct iovec message[MAXIOVLIST];
- struct ospf6_lsa *lsa;
- struct ospf6_lsdb_node node;
-
- o6i = THREAD_ARG (thread);
- assert (o6i);
-
- if (IS_OSPF6_DUMP_LSACK)
- zlog_info ("LSACK: Delayed LSAck for %s\n", o6i->interface->name);
-
- o6i->thread_send_lsack_delayed = (struct thread *) NULL;
-
- if (o6i->state <= IFS_WAITING)
- return 0;
-
- if (o6i->ack_list->count == 0)
- return 0;
-
- iov_clear (message, MAXIOVLIST);
-
- for (ospf6_lsdb_head (&node, o6i->ack_list);
- ! ospf6_lsdb_is_end (&node);
- ospf6_lsdb_next (&node))
- {
- lsa = node.lsa;
- if (IS_OVER_MTU (message, o6i->ifmtu, sizeof (struct ospf6_lsa_hdr)))
- break;
-
- OSPF6_MESSAGE_ATTACH (message, lsa->header,
- sizeof (struct ospf6_lsa_header));
- ospf6_interface_delayed_ack_remove (lsa, o6i);
- }
-
- /* statistics */
- o6i->ospf6_stat_delayed_lsack++;
-
- switch (o6i->state)
- {
- case IFS_DR:
- case IFS_BDR:
- ospf6_message_send (OSPF6_MESSAGE_TYPE_LSACK, message,
- &allspfrouters6.sin6_addr, o6i->if_id);
- break;
- default:
- ospf6_message_send (OSPF6_MESSAGE_TYPE_LSACK, message,
- &alldrouters6.sin6_addr, o6i->if_id);
- break;
- }
-
- iov_clear (message, MAXIOVLIST);
- return 0;
-}