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feat(lwip): add fall back dns config in menuconfig

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Closes https://github.com/espressif/esp-idf/issues/12530
This commit is contained in:
zhangyanjiao 2024-01-25 11:05:53 +08:00
parent a589ecdca8
commit 75b4fb5a66
3 changed files with 42 additions and 6 deletions
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31
components/lwip/Kconfig
View File

@ -656,8 +656,8 @@ menu "LWIP"
cause Wi-Fi/Ethernet fail to release RX buffer in time.
It is possible that all RX buffers for MAC layer are used by OOSEQ.
Control the number of out-of-order pbufs to ensure that the MAC layer has enough RX buffer
to receive packets.
Control the number of out-of-order pbufs to ensure that the MAC layer has
enough RX buffer to receive packets.
In the Wi-Fi scenario, recommended OOSEQ PBUFS Range:
0 <= TCP_OOSEQ_MAX_PBUFS <= CONFIG_ESP_WIFI_DYNAMIC_RX_BUFFER_NUM/(MAX_TCP_NUMBER + 1)
@ -1010,6 +1010,33 @@ menu "LWIP"
endmenu # SNTP
menu "DNS"
config LWIP_DNS_MAX_SERVERS
int "Maximum number of DNS servers"
default 3
range 1 4
help
Set maximum number of DNS servers.
If fallback DNS servers are supported,
the number of DNS servers needs to be greater than or equal to 3.
config LWIP_FALLBACK_DNS_SERVER_SUPPORT
bool "Enable DNS fallback server support"
default n
depends on LWIP_DNS_MAX_SERVERS >= 3
help
Enable this feature to support DNS fallback server.
config LWIP_FALLBACK_DNS_SERVER_ADDRESS
string "DNS fallback server address"
default "114.114.114.114"
depends on LWIP_FALLBACK_DNS_SERVER_SUPPORT
help
This option allows you to config dns fallback server address.
endmenu # DNS
config LWIP_ESP_LWIP_ASSERT
bool "Enable LWIP ASSERT checks"
default y

2
components/lwip/lwip

@ -1 +1 @@
Subproject commit 1de11efadd0083469f26c8782be3d55073829767
Subproject commit a45be9e438f6cf9c54ec150581819c3b95d5af6b

15
components/lwip/port/esp32/include/lwipopts.h
View File

@ -3,7 +3,7 @@
*
* SPDX-License-Identifier: BSD-3-Clause
*
* SPDX-FileContributor: 2015-2021 Espressif Systems (Shanghai) CO LTD
* SPDX-FileContributor: 2015-2024 Espressif Systems (Shanghai) CO LTD
*/
#ifndef __LWIPOPTS_H__
@ -375,8 +375,16 @@ static inline uint32_t timeout_from_offered(uint32_t lease, uint32_t min)
*/
#define LWIP_DNS 1
#define DNS_MAX_SERVERS 3
#define DNS_FALLBACK_SERVER_INDEX (DNS_MAX_SERVERS - 1)
#define DNS_MAX_SERVERS CONFIG_LWIP_DNS_MAX_SERVERS
#define DNS_FALLBACK_SERVER_INDEX (DNS_MAX_SERVERS - 1)
#ifdef CONFIG_LWIP_FALLBACK_DNS_SERVER_SUPPORT
#define FALLBACK_DNS_SERVER_ADDRESS(address) \
do { ip_addr_t *server_dns = address; \
char server_ip[] = CONFIG_LWIP_FALLBACK_DNS_SERVER_ADDRESS; \
ipaddr_aton(server_ip, server_dns); \
} while (0)
#endif /* CONFIG_LWIP_FALLBACK_DNS_SERVER_SUPPORT */
/*
---------------------------------
@ -1123,6 +1131,7 @@ static inline uint32_t timeout_from_offered(uint32_t lease, uint32_t min)
#define ESP_LWIP_LOCK 1
#define ESP_THREAD_PROTECTION 1
#define ESP_IP_FORWARD 1
#define ESP_LWIP_FALLBACK_DNS_PREFER_IPV4 0
#ifdef CONFIG_LWIP_IPV6_AUTOCONFIG
#define ESP_IPV6_AUTOCONFIG CONFIG_LWIP_IPV6_AUTOCONFIG