net: lwm2m: Fix deregistration timeout state handling
Socket faults or timeouts in CoAP deregistration messages
caused RD client state machine to restart registration.
Fixes #54136
Signed-off-by: Seppo Takalo <seppo.takalo@nordicsemi.no>
diff --git a/subsys/net/lib/lwm2m/lwm2m_rd_client.c b/subsys/net/lib/lwm2m/lwm2m_rd_client.c
index 41c306d..5800296 100644
--- a/subsys/net/lib/lwm2m/lwm2m_rd_client.c
+++ b/subsys/net/lib/lwm2m/lwm2m_rd_client.c
@@ -326,7 +326,16 @@
lwm2m_socket_close(client.ctx);
- set_sm_state(ENGINE_NETWORK_ERROR);
+ /* Network error state causes engine to re-register,
+ * so only trigger that state if we are not stopping the
+ * engine.
+ */
+ if (client.engine_state > ENGINE_IDLE &&
+ client.engine_state < ENGINE_SUSPENDED) {
+ set_sm_state(ENGINE_NETWORK_ERROR);
+ } else if (client.engine_state != ENGINE_SUSPENDED) {
+ sm_handle_failure_state(ENGINE_IDLE);
+ }
}
/* force re-update with remote peer */
@@ -565,8 +574,7 @@
{
LOG_WRN("De-Registration Timeout");
- /* Abort de-registration and start from scratch */
- sm_handle_timeout_state(msg, ENGINE_INIT);
+ sm_handle_timeout_state(msg, ENGINE_IDLE);
}
static bool sm_bootstrap_verify(bool bootstrap_server, int sec_obj_inst)
