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【修复】esp8266 部分固件获取 DNS 服务器失败，设置默认 DNS 服务器地址问题 

Signed-off-by: chenyong <1521761801@qq.com>
This commit is contained in:
chenyong 2019-09-02 10:51:21 +08:00
parent 4db8bb797c
commit b8471cb0f3
1 changed files with 16 additions and 3 deletions
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19
class/esp8266/at_device_esp8266.c
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@ -40,9 +40,14 @@
/* ============================= esp8266 network interface operations ============================= */ /* ============================= esp8266 network interface operations ============================= */
static int esp8266_netdev_set_dns_server(struct netdev *netdev, uint8_t dns_num, ip_addr_t *dns_server);
static void esp8266_get_netdev_info(struct rt_work *work, void *work_data) static void esp8266_get_netdev_info(struct rt_work *work, void *work_data)
{ {
#define AT_ADDR_LEN 32 #define AT_ADDR_LEN 32
#define AT_ERR_DNS_SERVER "255.255.255.255"
#define AT_DEF_DNS_SERVER "114.114.114.114"
at_response_t resp = RT_NULL; at_response_t resp = RT_NULL;
char ip[AT_ADDR_LEN] = {0}, mac[AT_ADDR_LEN] = {0}; char ip[AT_ADDR_LEN] = {0}, mac[AT_ADDR_LEN] = {0};
char gateway[AT_ADDR_LEN] = {0}, netmask[AT_ADDR_LEN] = {0}; char gateway[AT_ADDR_LEN] = {0}, netmask[AT_ADDR_LEN] = {0};
@ -125,13 +130,21 @@ static void esp8266_get_netdev_info(struct rt_work *work, void *work_data)
goto __exit; goto __exit;
} }
if (rt_strlen(dns_server1) > 0) /* set primary DNS server address */
if (rt_strlen(dns_server1) > 0 &&
rt_strncmp(dns_server1, AT_ERR_DNS_SERVER, rt_strlen(AT_ERR_DNS_SERVER)) != 0)
{ {
inet_aton(dns_server1, &ip_addr); inet_aton(dns_server1, &ip_addr);
netdev_low_level_set_dns_server(netdev, 0, &ip_addr); netdev_low_level_set_dns_server(netdev, 0, &ip_addr);
} }
else
{
inet_aton(AT_DEF_DNS_SERVER, &ip_addr);
esp8266_netdev_set_dns_server(netdev, 0, &ip_addr);
}
if (rt_strlen(dns_server2) > 0) /* set secondary DNS server address */
if (rt_strlen(dns_server2) > 0 )
{ {
inet_aton(dns_server2, &ip_addr); inet_aton(dns_server2, &ip_addr);
netdev_low_level_set_dns_server(netdev, 1, &ip_addr); netdev_low_level_set_dns_server(netdev, 1, &ip_addr);