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net: lwm2m: support client-initiated De-register

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Add new RD Client API of lwm2m_rd_client_stop() for this
Fix issues of de-register and event reporting in RD Client

Signed-off-by: Jun Qing Zou <jun.qing.zou@nordicsemi.no>
This commit is contained in:
Jun Qing Zou 2019-08-29 18:31:58 +09:00 • committed by Carles Cufí
commit ca783d72a6
2 changed files with 34 additions and 4 deletions
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17
include/net/lwm2m.h
View file

@ -868,6 +868,21 @@ typedef void (*lwm2m_ctx_event_cb_t)(struct lwm2m_ctx *ctx,
void lwm2m_rd_client_start(struct lwm2m_ctx *client_ctx, const char *ep_name,
lwm2m_ctx_event_cb_t event_cb);
#endif /* ZEPHYR_INCLUDE_NET_LWM2M_H_ */
/**
* @brief Stop the LwM2M RD (De-register) Client
*
* The RD client sits just above the LwM2M engine and performs the necessary
* actions to implement the "Registration interface".
* For more information see Section 5.3 "Client Registration Interface" of the
* LwM2M Technical Specification.
*
* @param[in] client_ctx LwM2M context
* @param[in] event_cb Client event callback function
*
* @return 0 for success or negative in case of error.
*/
void lwm2m_rd_client_stop(struct lwm2m_ctx *client_ctx,
lwm2m_ctx_event_cb_t event_cb);
#endif /* ZEPHYR_INCLUDE_NET_LWM2M_H_ */
/**@} */

21
subsys/net/lib/lwm2m/lwm2m_rd_client.c
View file

@ -130,7 +130,7 @@ static void set_sm_state(u8_t sm_state)
} else if ((sm_state == ENGINE_INIT ||
sm_state == ENGINE_DEREGISTERED) &&
(client.engine_state >= ENGINE_DO_REGISTRATION &&
client.engine_state < ENGINE_DEREGISTER)) {
client.engine_state <= ENGINE_DEREGISTER_SENT)) {
event = LWM2M_RD_CLIENT_EVENT_DISCONNECT;
}
@ -354,7 +354,8 @@ static int do_deregister_reply_cb(const struct coap_packet *response,
COAP_RESPONSE_CODE_DETAIL(code));
if (code == COAP_RESPONSE_CODE_DELETED) {
LOG_DBG("Deregistration success");
LOG_INF("Deregistration success");
lwm2m_engine_context_close(client.ctx);
set_sm_state(ENGINE_DEREGISTERED);
} else {
LOG_ERR("failed with code %u.%u",
@ -767,6 +768,10 @@ static int sm_do_deregister(void)
}
/* TODO: handle return error */
coap_packet_append_option(&msg->cpkt, COAP_OPTION_URI_PATH,
LWM2M_RD_CLIENT_URI,
strlen(LWM2M_RD_CLIENT_URI));
/* include server endpoint in URI PATH */
coap_packet_append_option(&msg->cpkt, COAP_OPTION_URI_PATH,
client.server_ep,
strlen(client.server_ep));
@ -861,7 +866,17 @@ void lwm2m_rd_client_start(struct lwm2m_ctx *client_ctx, const char *ep_name,
set_sm_state(ENGINE_INIT);
strncpy(client.ep_name, ep_name, CLIENT_EP_LEN - 1);
LOG_INF("LWM2M Client: %s", log_strdup(client.ep_name));
LOG_INF("Start LWM2M Client: %s", log_strdup(client.ep_name));
}
void lwm2m_rd_client_stop(struct lwm2m_ctx *client_ctx,
lwm2m_ctx_event_cb_t event_cb)
{
client.ctx = client_ctx;
client.event_cb = event_cb;
set_sm_state(ENGINE_DEREGISTER);
LOG_INF("Stop LWM2M Client: %s", log_strdup(client.ep_name));
}
static int lwm2m_rd_client_init(struct device *dev)