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Code Releases Activity

Actually check sequence numbers.

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This commit is contained in:
Pavel Machek
1999-12-01 12:52:57 +00:00
parent 3daf783f95
commit 639e628554
3 changed files with 16 additions and 6 deletions
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14
proto/rip/auth.c
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@@ -31,7 +31,7 @@
/* 1 == failed, 0 == ok */
int
rip_incoming_authentication( struct proto *p, struct rip_block_auth *block, struct rip_packet *packet, int num )
rip_incoming_authentication( struct proto *p, struct rip_block_auth *block, struct rip_packet *packet, int num, ip_addr whotoldme )
{
DBG( "Incoming authentication: " );
switch (block->authtype) { /* Authentication type */
@@ -73,6 +73,18 @@ rip_incoming_authentication( struct proto *p, struct rip_block_auth *block, stru
DBG( "time, " );
if ((head->from > now) || (head->to < now))
goto skip;
if (block->seq) {
struct neighbor *neigh = neigh_find(p, &whotoldme, 0);
if (!neigh) {
log( L_AUTH "Non-neighbour md5 checksummed packet?\n" );
} else {
if (neigh->aux > block->seq) {
log( L_AUTH "md5 prottected packet with lower numbers\n" );
return 0;
}
neigh->aux = block->seq;
}
}
DBG( "check, " );
if (head->id == block->keyid) {
struct MD5Context ctxt;