diff options
| -rw-r--r-- | ospf6d/ospf6_message.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/ospf6d/ospf6_message.c b/ospf6d/ospf6_message.c index f40ad4b0..42521a2d 100644 --- a/ospf6d/ospf6_message.c +++ b/ospf6d/ospf6_message.c @@ -47,6 +47,8 @@ #include "ospf6_flood.h" #include "ospf6d.h" +#include <netinet/ip6.h> + unsigned char conf_debug_ospf6_message[6] = {0x03, 0, 0, 0, 0, 0}; const char *ospf6_message_type_str[] = { "Unknown", "Hello", "DbDesc", "LSReq", "LSUpdate", "LSAck" }; @@ -1774,6 +1776,12 @@ ospf6_send (struct in6_addr *src, struct in6_addr *dst, zlog_err ("Could not send entire message"); } +static int +ospf6_packet_max(struct ospf6_interface *oi) +{ + return oi->ifmtu - sizeof(struct ip6_hdr); +} + int ospf6_hello_send (struct thread *thread) { @@ -1820,7 +1828,7 @@ ospf6_hello_send (struct thread *thread) if (on->state < OSPF6_NEIGHBOR_INIT) continue; - if (p - sendbuf + sizeof (u_int32_t) > oi->ifmtu) + if (p - sendbuf + sizeof (u_int32_t) > ospf6_packet_max(oi)) { if (IS_OSPF6_DEBUG_MESSAGE (OSPF6_MESSAGE_TYPE_HELLO, SEND)) zlog_debug ("sending Hello message: exceeds I/F MTU"); @@ -1896,7 +1904,7 @@ ospf6_dbdesc_send (struct thread *thread) /* MTU check */ if (p - sendbuf + sizeof (struct ospf6_lsa_header) > - on->ospf6_if->ifmtu) + ospf6_packet_max(on->ospf6_if)) { ospf6_lsa_unlock (lsa); break; @@ -1930,7 +1938,7 @@ ospf6_dbdesc_send_newone (struct thread *thread) 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) + if (size + sizeof (struct ospf6_lsa_header) > ospf6_packet_max(on->ospf6_if)) { ospf6_lsa_unlock (lsa); break; @@ -1997,7 +2005,7 @@ ospf6_lsreq_send (struct thread *thread) lsa = ospf6_lsdb_next (lsa)) { /* MTU check */ - if (p - sendbuf + sizeof (struct ospf6_lsreq_entry) > on->ospf6_if->ifmtu) + if (p - sendbuf + sizeof (struct ospf6_lsreq_entry) > ospf6_packet_max(on->ospf6_if)) { ospf6_lsa_unlock (lsa); break; @@ -2066,7 +2074,7 @@ ospf6_lsupdate_send_neighbor (struct thread *thread) { /* MTU check */ if ( (p - sendbuf + (unsigned int)OSPF6_LSA_SIZE (lsa->header)) - > on->ospf6_if->ifmtu) + > ospf6_packet_max(on->ospf6_if)) { ospf6_lsa_unlock (lsa); break; @@ -2086,7 +2094,7 @@ ospf6_lsupdate_send_neighbor (struct thread *thread) { /* MTU check */ if ( (p - sendbuf + (unsigned int)OSPF6_LSA_SIZE (lsa->header)) - > on->ospf6_if->ifmtu) + > ospf6_packet_max(on->ospf6_if)) { ospf6_lsa_unlock (lsa); break; @@ -2159,7 +2167,7 @@ ospf6_lsupdate_send_interface (struct thread *thread) { /* MTU check */ if ( (p - sendbuf + ((unsigned int)OSPF6_LSA_SIZE (lsa->header))) - > oi->ifmtu) + > ospf6_packet_max(oi)) { ospf6_lsa_unlock (lsa); break; @@ -2226,7 +2234,7 @@ ospf6_lsack_send_neighbor (struct thread *thread) lsa = ospf6_lsdb_next (lsa)) { /* MTU check */ - if (p - sendbuf + sizeof (struct ospf6_lsa_header) > on->ospf6_if->ifmtu) + if (p - sendbuf + sizeof (struct ospf6_lsa_header) > ospf6_packet_max(on->ospf6_if)) { /* if we run out of packet size/space here, better to try again soon. */ @@ -2286,7 +2294,7 @@ ospf6_lsack_send_interface (struct thread *thread) lsa = ospf6_lsdb_next (lsa)) { /* MTU check */ - if (p - sendbuf + sizeof (struct ospf6_lsa_header) > oi->ifmtu) + if (p - sendbuf + sizeof (struct ospf6_lsa_header) > ospf6_packet_max(oi)) { /* if we run out of packet size/space here, better to try again soon. */ |