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Do not use destroyed rng/hasher if IKE_SA has been flush()ed

This commit is contained in:
Martin Willi 2011-01-20 10:32:37 +01:00
parent a846bf06e8
commit 1d34612f07
1 changed files with 9 additions and 3 deletions
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12
src/libcharon/sa/ike_sa_manager.c
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@ -907,9 +907,12 @@ static void remove_connected_peers(private_ike_sa_manager_t *this, entry_t *entr
*/
static u_int64_t get_spi(private_ike_sa_manager_t *this)
{
u_int64_t spi;
u_int64_t spi = 0;
this->rng->get_bytes(this->rng, sizeof(spi), (u_int8_t*)&spi);
if (this->rng)
{
this->rng->get_bytes(this->rng, sizeof(spi), (u_int8_t*)&spi);
}
return spi;
}
@ -975,7 +978,8 @@ METHOD(ike_sa_manager_t, checkout_by_message, ike_sa_t*,
DBG2(DBG_MGR, "checkout IKE_SA by message");
if (message->get_request(message) &&
message->get_exchange_type(message) == IKE_SA_INIT)
message->get_exchange_type(message) == IKE_SA_INIT &&
this->hasher)
{
/* IKE_SA_INIT request. Check for an IKE_SA with such a message hash. */
chunk_t data, hash;
@ -1653,7 +1657,9 @@ METHOD(ike_sa_manager_t, flush, void,
unlock_all_segments(this);
this->rng->destroy(this->rng);
this->rng = NULL;
this->hasher->destroy(this->hasher);
this->hasher = NULL;
}
METHOD(ike_sa_manager_t, destroy, void,