]> git.ipfire.org Git - thirdparty/strongswan.git/commitdiff
quick-delete: Properly handle failures to restart CHILD_SA
authorTobias Brunner <tobias@strongswan.org>
Thu, 8 Oct 2020 12:04:36 +0000 (14:04 +0200)
committerTobias Brunner <tobias@strongswan.org>
Tue, 27 Oct 2020 15:35:45 +0000 (16:35 +0100)
If DESTROY_ME is returned from initiate(), we must not touch the IKE_SA
anymore.

src/libcharon/sa/ikev1/tasks/quick_delete.c

index 67306912f5e4e8738f4b4eb9ac300e68e6de7456..7dff247fbe8847ffa0ea432982538210dd3656be 100644 (file)
@@ -86,13 +86,15 @@ struct private_quick_delete_t {
 /**
  * Delete the specified CHILD_SA, if found
  */
-static bool delete_child(private_quick_delete_t *this, protocol_id_t protocol,
-                                                uint32_t spi, bool remote_close)
+static status_t delete_child(private_quick_delete_t *this,
+                                                        protocol_id_t protocol, uint32_t spi,
+                                                        bool remote_close)
 {
        uint64_t bytes_in, bytes_out;
        child_sa_t *child_sa;
        linked_list_t *my_ts, *other_ts;
        child_cfg_t *child_cfg;
+       status_t status = SUCCESS;
        bool rekeyed;
 
        child_sa = this->ike_sa->get_child_sa(this->ike_sa, protocol, spi, TRUE);
@@ -101,7 +103,7 @@ static bool delete_child(private_quick_delete_t *this, protocol_id_t protocol,
                child_sa = this->ike_sa->get_child_sa(this->ike_sa, protocol, spi, FALSE);
                if (!child_sa)
                {
-                       return FALSE;
+                       return NOT_FOUND;
                }
                this->spi = spi = child_sa->get_spi(child_sa, TRUE);
        }
@@ -154,7 +156,7 @@ static bool delete_child(private_quick_delete_t *this, protocol_id_t protocol,
                        {
                                case ACTION_RESTART:
                                        child_cfg->get_ref(child_cfg);
-                                       this->ike_sa->initiate(this->ike_sa, child_cfg,
+                                       status = this->ike_sa->initiate(this->ike_sa, child_cfg,
                                                                        child_sa->get_reqid(child_sa), NULL, NULL);
                                        break;
                                case ACTION_ROUTE:
@@ -168,15 +170,18 @@ static bool delete_child(private_quick_delete_t *this, protocol_id_t protocol,
                        child_cfg->destroy(child_cfg);
                }
        }
-       this->ike_sa->destroy_child_sa(this->ike_sa, protocol, spi);
-
-       return TRUE;
+       if (status == SUCCESS)
+       {
+               this->ike_sa->destroy_child_sa(this->ike_sa, protocol, spi);
+       }
+       return status;
 }
 
 METHOD(task_t, build_i, status_t,
        private_quick_delete_t *this, message_t *message)
 {
-       if (delete_child(this, this->protocol, this->spi, FALSE) || this->force)
+       if (delete_child(this, this->protocol, this->spi, FALSE) == SUCCESS ||
+               this->force)
        {
                delete_payload_t *delete_payload;
 
@@ -206,6 +211,7 @@ METHOD(task_t, process_r, status_t,
        payload_t *payload;
        delete_payload_t *delete_payload;
        protocol_id_t protocol;
+       status_t status = SUCCESS;
        uint32_t spi;
 
        payloads = message->create_payload_enumerator(message);
@@ -224,18 +230,27 @@ METHOD(task_t, process_r, status_t,
                        {
                                DBG1(DBG_IKE, "received DELETE for %N CHILD_SA with SPI %.8x",
                                         protocol_id_names, protocol, ntohl(spi));
-                               if (!delete_child(this, protocol, spi, TRUE))
+                               status = delete_child(this, protocol, spi, TRUE);
+                               if (status == NOT_FOUND)
                                {
                                        DBG1(DBG_IKE, "CHILD_SA not found, ignored");
-                                       continue;
+                                       status = SUCCESS;
+                               }
+                               if (status != SUCCESS)
+                               {
+                                       break;
                                }
                        }
                        spis->destroy(spis);
                }
+               if (status != SUCCESS)
+               {
+                       break;
+               }
        }
        payloads->destroy(payloads);
 
-       return SUCCESS;
+       return status;
 }
 
 METHOD(task_t, build_r, status_t,