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Merge branch 'bugfix/mdns_service_memory_leak_3.1' into 'release/v3.1'

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mdns: fix memory leak when query for service plus various other fixes (Backport v3.1)

See merge request idf/esp-idf!4313
This commit is contained in:
Jiang Jiang Jian 2019-03-17 14:28:35 +08:00
parent cea8c51527 b92def7b01
commit dda1af6e55
3 changed files with 12 additions and 4 deletions
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13
components/mdns/mdns.c
View file

@ -2726,8 +2726,10 @@ void mdns_parse_packet(mdns_rx_packet_t * packet)
if (search_result) {
if (search_result->type == MDNS_TYPE_PTR) {
result->port = port;
result->hostname = strdup(name->host);
if (!result->hostname) { // assign host/port for this entry only if not previously set
result->port = port;
result->hostname = strdup(name->host);
}
} else {
_mdns_search_result_add_srv(search_result, name->host, port, packet->tcpip_if, packet->ip_protocol);
}
@ -2814,7 +2816,10 @@ void mdns_parse_packet(mdns_rx_packet_t * packet)
}
}
} else {
_mdns_search_result_add_txt(search_result, txt, txt_count, packet->tcpip_if, packet->ip_protocol);
_mdns_result_txt_create(data_ptr, data_len, &txt, &txt_count);
if (txt_count) {
_mdns_search_result_add_txt(search_result, txt, txt_count, packet->tcpip_if, packet->ip_protocol);
}
}
} else if (ours) {
if (parsed_packet->questions && !parsed_packet->probe) {
@ -4009,6 +4014,8 @@ static esp_err_t _mdns_service_task_stop()
vTaskDelay(10 / portTICK_PERIOD_MS);
}
}
vSemaphoreDelete(_mdns_service_semaphore);
_mdns_service_semaphore = NULL;
return ESP_OK;
}

1
components/mdns/mdns_networking.c
View file

@ -272,6 +272,7 @@ static err_t _mdns_udp_pcb_write_api(struct tcpip_api_call *api_call_msg)
mdns_pcb_t * _pcb = &_mdns_server->interfaces[msg->tcpip_if].pcbs[msg->ip_protocol];
esp_err_t err = tcpip_adapter_get_netif(msg->tcpip_if, &nif);
if (err) {
pbuf_free(msg->pbt);
msg->err = err;
return err;
}

2
examples/protocols/mdns/main/mdns_example_main.c
View file

@ -143,7 +143,7 @@ static void mdns_print_results(mdns_result_t * results){
}
a = r->addr;
while(a){
if(a->addr.type == MDNS_IP_PROTOCOL_V6){
if(a->addr.type == IPADDR_TYPE_V6){
printf(" AAAA: " IPV6STR "\n", IPV62STR(a->addr.u_addr.ip6));
} else {
printf(" A : " IPSTR "\n", IP2STR(&(a->addr.u_addr.ip4)));