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| author | Ondrej Zajicek <santiago@crfreenet.org> | 2010-05-07 15:54:27 +0200 |
|---|---|---|
| committer | Ondrej Zajicek <santiago@crfreenet.org> | 2010-05-07 15:54:27 +0200 |
| commit | ee7408c2be2cd514ba6eefc5589e57a6056198dc (patch) | |
| tree | ebfccc2e387f482c6e2a83941e8be5b0c10a9fbc /proto/ospf/lsupd.c | |
| parent | 54818e9beb6bfcbcb5dcc2b175dca9d174012e6c (diff) | |
| download | bird-ee7408c2be2cd514ba6eefc5589e57a6056198dc.tar bird-ee7408c2be2cd514ba6eefc5589e57a6056198dc.zip | |
Fixes a bug in LSA flooding.
LSAs are sometimes prematurely removed from LS retransmission lists.
Diffstat (limited to 'proto/ospf/lsupd.c')
| -rw-r--r-- | proto/ospf/lsupd.c | 36 |
1 files changed, 15 insertions, 21 deletions
diff --git a/proto/ospf/lsupd.c b/proto/ospf/lsupd.c index 7d5d89d..62e7eac 100644 --- a/proto/ospf/lsupd.c +++ b/proto/ospf/lsupd.c @@ -241,9 +241,6 @@ ospf_lsupd_flood(struct proto_ospf *po, if ((en = ospf_hash_find_header(nn->lsrth, domain, hh)) != NULL) { s_rem_node(SNODE en); - if (en->lsa_body != NULL) - mb_free(en->lsa_body); - en->lsa_body = NULL; ospf_hash_delete(nn->lsrth, en); } } @@ -585,20 +582,9 @@ ospf_lsupd_receive(struct ospf_packet *ps_i, struct ospf_iface *ifa, continue; } - if (ospf_lsupd_flood(po, n, lsa, &lsatmp, domain, 1) == 0) - { - DBG("Wasn't flooded back\n"); /* ps 144(5e), pg 153 */ - if (ifa->state == OSPF_IS_BACKUP) - { - if (ifa->drid == n->rid) - ospf_lsack_enqueue(n, lsa, ACKL_DELAY); - } - else - ospf_lsack_enqueue(n, lsa, ACKL_DELAY); - } - /* Remove old from all ret lists */ /* pg 144 (5c) */ + /* Must be done before (5b), otherwise it also removes the new entries from (5b) */ if (lsadb) WALK_LIST(ift, po->iface_list) WALK_LIST(ntmp, ift->neigh_list) @@ -608,13 +594,23 @@ ospf_lsupd_receive(struct ospf_packet *ps_i, struct ospf_iface *ifa, if ((en = ospf_hash_find_header(ntmp->lsrth, domain, &lsadb->lsa)) != NULL) { s_rem_node(SNODE en); - if (en->lsa_body != NULL) - mb_free(en->lsa_body); - en->lsa_body = NULL; ospf_hash_delete(ntmp->lsrth, en); } } + /* pg 144 (5b) */ + if (ospf_lsupd_flood(po, n, lsa, &lsatmp, domain, 1) == 0) + { + DBG("Wasn't flooded back\n"); /* ps 144(5e), pg 153 */ + if (ifa->state == OSPF_IS_BACKUP) + { + if (ifa->drid == n->rid) + ospf_lsack_enqueue(n, lsa, ACKL_DELAY); + } + else + ospf_lsack_enqueue(n, lsa, ACKL_DELAY); + } + if ((lsatmp.age == LSA_MAXAGE) && (lsatmp.sn == LSA_MAXSEQNO) && lsadb && can_flush_lsa(po)) { @@ -661,10 +657,8 @@ ospf_lsupd_receive(struct ospf_packet *ps_i, struct ospf_iface *ifa, { /* pg145 (7a) */ s_rem_node(SNODE en); - if (en->lsa_body != NULL) - mb_free(en->lsa_body); - en->lsa_body = NULL; ospf_hash_delete(n->lsrth, en); + if (ifa->state == OSPF_IS_BACKUP) { if (n->rid == ifa->drid) |