70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
#include "user_config.h"
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#include <stdint.h>
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#include "coap.h"
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#include "hash.h"
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#include "node.h"
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extern coap_queue_t *gQueue;
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void coap_client_response_handler(char *data, unsigned short len, unsigned short size, const uint32_t ip, const uint32_t port)
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{
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NODE_DBG("coap_client_response_handler is called.\n");
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coap_packet_t pkt;
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pkt.content.p = NULL;
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pkt.content.len = 0;
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int rc;
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if (0 != (rc = coap_parse(&pkt, data, len))){
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NODE_DBG("Bad packet rc=%d\n", rc);
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}
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else
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{
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#ifdef COAP_DEBUG
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coap_dumpPacket(&pkt);
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#endif
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/* check if this is a response to our original request */
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if (!check_token(&pkt)) {
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/* drop if this was just some message, or send RST in case of notification */
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if (pkt.hdr.t == COAP_TYPE_CON || pkt.hdr.t == COAP_TYPE_NONCON){
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// coap_send_rst(pkt); // send RST response
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// or, just ignore it.
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}
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goto end;
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}
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if (pkt.hdr.t == COAP_TYPE_RESET) {
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NODE_DBG("got RST\n");
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goto end;
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}
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coap_tid_t id = COAP_INVALID_TID;
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coap_transaction_id(ip, port, &pkt, &id);
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/* transaction done, remove the node from queue */
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// stop timer
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coap_timer_stop();
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// remove the node
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coap_remove_node(&gQueue, id);
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// calculate time elapsed
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coap_timer_update(&gQueue);
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coap_timer_start(&gQueue);
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if (COAP_RESPONSE_CLASS(pkt.hdr.code) == 2)
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{
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/* There is no block option set, just read the data and we are done. */
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NODE_DBG("%d.%02d\t", (pkt.hdr.code >> 5), pkt.hdr.code & 0x1F);
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NODE_DBG((char *)(pkt.payload.p));
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}
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else if (COAP_RESPONSE_CLASS(pkt.hdr.code) >= 4)
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{
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NODE_DBG("%d.%02d\t", (pkt.hdr.code >> 5), pkt.hdr.code & 0x1F);
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NODE_DBG((char *)(pkt.payload.p));
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}
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}
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end:
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if(!gQueue){ // if there is no node pending in the queue, disconnect from host.
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}
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}
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