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fixed segfault in pluto with multiple ISAKMP SAs in delete payload

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This commit is contained in:
Heiko Hund
2010-04-20 21:23:05 +02:00
committed by Andreas Steffen
parent 4590260b2d
commit d0f1b3b96f
1 changed files with 20 additions and 2 deletions
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src/pluto/ipsec_doi.c
+20 -2
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@@ -702,6 +702,8 @@ void accept_delete(struct state *st, struct msg_digest *md,
struct payload_digest *p)
{
struct isakmp_delete *d = &(p->payload.delete);
identification_t *this_id, *that_id;
ip_address peer_addr;
size_t sizespi;
int i;
@@ -759,6 +761,15 @@ void accept_delete(struct state *st, struct msg_digest *md,
return;
}
if (d->isad_protoid == PROTO_ISAKMP)
{
struct end *this = &st->st_connection->spd.this;
struct end *that = &st->st_connection->spd.that;
this_id = this->id->clone(this->id);
that_id = that->id->clone(that->id);
peer_addr = st->st_connection->spd.that.host_addr;
}
for (i = 0; i < d->isad_nospi; i++)
{
u_char *spi = p->pbs.cur + (i * sizespi);
@@ -770,7 +781,7 @@ void accept_delete(struct state *st, struct msg_digest *md,
*/
struct state *dst = find_state(spi /*iCookie*/
, spi+COOKIE_SIZE /*rCookie*/
, &st->st_connection->spd.that.host_addr
, &peer_addr
, MAINMODE_MSGID);
if (dst == NULL)
@@ -778,7 +789,8 @@ void accept_delete(struct state *st, struct msg_digest *md,
loglog(RC_LOG_SERIOUS, "ignoring Delete SA payload: "
"ISAKMP SA not found (maybe expired)");
}
else if (!same_peer_ids(st->st_connection, dst->st_connection, NULL))
else if (! this_id->equals(this_id, dst->st_connection->spd.this.id) ||
! that_id->equals(that_id, dst->st_connection->spd.that.id))
{
/* we've not authenticated the relevant identities */
loglog(RC_LOG_SERIOUS, "ignoring Delete SA payload: "
@@ -876,6 +888,12 @@ void accept_delete(struct state *st, struct msg_digest *md,
}
}
}
if (d->isad_protoid == PROTO_ISAKMP)
{
this_id->destroy(this_id);
that_id->destroy(that_id);
}
}
/* The whole message must be a multiple of 4 octets.