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net: lwm2m: Allow Bootstrap server to close DTLS connection

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Allow Bootstrap server to close the DTLS connection immediately
after receiving Ack to Bootstrap-Finish command.
This is not an error as either parties are allowed to tear down
the connection.

Signed-off-by: Seppo Takalo <seppo.takalo@nordicsemi.no>
This commit is contained in:
Seppo Takalo 2023-09-12 11:39:37 +03:00 committed by Fabio Baltieri
parent f49309cf52
commit da1463756e
1 changed files with 9 additions and 5 deletions
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14
subsys/net/lib/lwm2m/lwm2m_rd_client.c
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@ -89,12 +89,10 @@ static void set_sm_state(uint8_t sm_state);
enum sm_engine_state {
ENGINE_IDLE,
ENGINE_INIT,
#if defined(CONFIG_LWM2M_RD_CLIENT_SUPPORT_BOOTSTRAP)
ENGINE_DO_BOOTSTRAP_REG,
ENGINE_BOOTSTRAP_REG_SENT,
ENGINE_BOOTSTRAP_REG_DONE,
ENGINE_BOOTSTRAP_TRANS_DONE,
#endif
ENGINE_DO_REGISTRATION,
ENGINE_SEND_REGISTRATION,
ENGINE_REGISTRATION_SENT,
@ -355,14 +353,20 @@ static void sm_handle_failure_state(enum sm_engine_state sm_state)
static void socket_fault_cb(int error)
{
LOG_ERR("RD Client socket error: %d", error);
lwm2m_socket_close(client.ctx);
if (sm_is_bootstrap()) {
if (IS_ENABLED(CONFIG_LWM2M_RD_CLIENT_SUPPORT_BOOTSTRAP) && sm_is_bootstrap()) {
client.ctx->sec_obj_inst = -1;
/* force full registration */
client.last_update = 0;
}
lwm2m_socket_close(client.ctx);
if (get_sm_state() == ENGINE_BOOTSTRAP_TRANS_DONE) {
/* Ignore the error, some servers close the connection immediately
* after receiving Ack to Bootstrap-Finish command.
*/
return;
}
}
/* Network error state causes engine to re-register,
* so only trigger that state if we are not stopping the