diff options
Diffstat (limited to 'src/libcharon/sa/ikev1/tasks/isakmp_delete.c')
| -rw-r--r-- | src/libcharon/sa/ikev1/tasks/isakmp_delete.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/libcharon/sa/ikev1/tasks/isakmp_delete.c b/src/libcharon/sa/ikev1/tasks/isakmp_delete.c index bea0428c4..a56805afb 100644 --- a/src/libcharon/sa/ikev1/tasks/isakmp_delete.c +++ b/src/libcharon/sa/ikev1/tasks/isakmp_delete.c @@ -1,4 +1,7 @@ /* + * Copyright (C) 2015 Tobias Brunner + * Hochschule fuer Technik Rapperswil + * * Copyright (C) 2011 Martin Willi * Copyright (C) 2011 revosec AG * @@ -74,6 +77,42 @@ METHOD(task_t, process_i, status_t, METHOD(task_t, process_r, status_t, private_isakmp_delete_t *this, message_t *message) { + enumerator_t *payloads; + payload_t *payload; + delete_payload_t *delete_payload; + ike_sa_id_t *id; + u_int64_t spi_i, spi_r; + bool found = FALSE; + + /* some peers send DELETE payloads for other IKE_SAs, e.g. those for expired + * ones after a rekeyeing, make sure the SPIs match */ + id = this->ike_sa->get_id(this->ike_sa); + payloads = message->create_payload_enumerator(message); + while (payloads->enumerate(payloads, &payload)) + { + if (payload->get_type(payload) == PLV1_DELETE) + { + delete_payload = (delete_payload_t*)payload; + if (!delete_payload->get_ike_spi(delete_payload, &spi_i, &spi_r)) + { + continue; + } + if (id->get_initiator_spi(id) == spi_i && + id->get_responder_spi(id) == spi_r) + { + found = TRUE; + break; + } + } + } + payloads->destroy(payloads); + + if (!found) + { + DBG1(DBG_IKE, "received DELETE for different IKE_SA, ignored"); + return SUCCESS; + } + DBG1(DBG_IKE, "received DELETE for IKE_SA %s[%d]", this->ike_sa->get_name(this->ike_sa), this->ike_sa->get_unique_id(this->ike_sa)); |