blackbeard420/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf synced 2025-04-08 15:50:10 -04:00
Code Issues Projects Releases Wiki Activity

mdns: Fix of crash when wifi interface get deleted and mdns receives the packets

Browse Source 
Closes https://github.com/espressif/esp-idf/issues/6973
This commit is contained in:
Suren Gabrielyan 2021-05-20 12:25:15 +04:00 committed by bot
parent b20c5e3756
commit 0a387f98de
1 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
components/mdns/mdns.c
View File

@ -73,6 +73,17 @@ esp_netif_t *_mdns_get_esp_netif(mdns_if_t tcpip_if)
return NULL; return NULL;
} }
/*
* @brief Clean internal mdns interface's pointer
*/
static inline void _mdns_clean_netif_ptr(mdns_if_t tcpip_if) {
if (tcpip_if < MDNS_IF_MAX) {
s_esp_netifs[tcpip_if] = NULL;
}
}
/* /*
* @brief Convert esp-netif handle to mdns if * @brief Convert esp-netif handle to mdns if
*/ */
@ -3110,6 +3121,8 @@ void _mdns_enable_pcb(mdns_if_t tcpip_if, mdns_ip_protocol_t ip_protocol)
*/ */
void _mdns_disable_pcb(mdns_if_t tcpip_if, mdns_ip_protocol_t ip_protocol) void _mdns_disable_pcb(mdns_if_t tcpip_if, mdns_ip_protocol_t ip_protocol)
{ {
_mdns_clean_netif_ptr(tcpip_if);
if (_mdns_server->interfaces[tcpip_if].pcbs[ip_protocol].pcb) { if (_mdns_server->interfaces[tcpip_if].pcbs[ip_protocol].pcb) {
_mdns_clear_pcb_tx_queue_head(tcpip_if, ip_protocol); _mdns_clear_pcb_tx_queue_head(tcpip_if, ip_protocol);
_mdns_pcb_deinit(tcpip_if, ip_protocol); _mdns_pcb_deinit(tcpip_if, ip_protocol);