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gcoap: debug for _find_req_memo_by_token()

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This commit is contained in:
Fabian Hüßler 2024-05-30 23:17:58 +02:00
parent 0614db9cd5
commit 04d95ab0e8
1 changed files with 33 additions and 7 deletions
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40
sys/net/application_layer/gcoap/gcoap.c
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@ -29,8 +29,11 @@
#include "net/coap.h"
#include "net/gcoap.h"
#include "net/gcoap/forward_proxy.h"
#include "net/ipv6/addr.h"
#include "net/nanocoap.h"
#include "net/nanocoap/cache.h"
#include "net/sock/async/event.h"
#include "net/sock/udp.h"
#include "net/sock/util.h"
#include "mutex.h"
#include "random.h"
@ -103,6 +106,8 @@ static void _on_sock_dtls_evt(sock_dtls_t *sock, sock_async_flags_t type, void *
static void _dtls_free_up_session(void *arg);
#endif
static char _ipv6_addr_str[IPV6_ADDR_MAX_STR_LEN];
/* Internal variables */
const coap_resource_t _default_resources[] = {
{ "/.well-known/core", COAP_GET, _well_known_core_handler, NULL },
@ -915,15 +920,36 @@ static gcoap_request_memo_t* _find_req_memo_by_token(const sock_udp_ep_t *remote
gcoap_request_memo_t *memo = &_coap_state.open_reqs[i];
memo_pdu->hdr = gcoap_request_memo_get_hdr(memo);
if (coap_get_token_len(memo_pdu) == tkl) {
if ((memcmp(token, coap_get_token(memo_pdu), tkl) == 0)
&& (sock_udp_ep_equal(&memo->remote_ep, remote)
/* Multicast addresses are not considered in matching responses */
|| sock_udp_ep_is_multicast(&memo->remote_ep)
)) {
return memo;
/* verbose debug to catch bugs with request/response matching */
DEBUG("Seeking memo for remote=%s, tkn=0x%02x%02x%02x%02x%02x%02x%02x%02x, tkl=%"PRIuSIZE"\n",
ipv6_addr_to_str(_ipv6_addr_str, (ipv6_addr_t *)&remote->addr.ipv6,
IPV6_ADDR_MAX_STR_LEN),
token[0], token[1], token[2], token[3], token[4], token[5], token[6], token[7],
tkl);
if (coap_get_token_len(memo_pdu) != tkl) {
DEBUG("Token length mismatch %u\n", coap_get_token_len(memo_pdu));
continue;
}
const uint8_t *memo_token = coap_get_token(memo_pdu);
if (memcmp(token, memo_token, tkl)) {
DEBUG("Token mismatch 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
memo_token[0], memo_token[1], memo_token[2], memo_token[3],
memo_token[4], memo_token[5], memo_token[6], memo_token[7]);
continue;
}
if (!sock_udp_ep_equal(&memo->remote_ep, remote)) {
if (sock_udp_ep_is_multicast(&memo->remote_ep)) {
DEBUG("matching multicast response\n");
}
else {
DEBUG("Remote address mismatch %s\n",
ipv6_addr_to_str(_ipv6_addr_str, (ipv6_addr_t *)&memo->remote_ep.addr.ipv6,
IPV6_ADDR_MAX_STR_LEN));
continue;
}
}
return memo;
}
return NULL;
}