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lwip: add a hook for ip6 source address selection

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This commit is contained in:
zhangwenxu 2023-05-10 15:25:09 +08:00
parent e9a8456279
commit bcb9e6b5eb
4 changed files with 38 additions and 2 deletions
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20
components/lwip/Kconfig
View File

@ -1024,6 +1024,26 @@ menu "LWIP"
endchoice
choice LWIP_HOOK_IP6_SELECT_SRC_ADDR
prompt "IPv6 source address selection Hook"
depends on LWIP_IPV6
default LWIP_HOOK_IP6_SELECT_SRC_ADDR_NONE
help
Enables custom IPv6 source address selection.
Setting this to "default" provides weak implementation
stub that could be overwritten in application code.
Setting this to "custom" provides hook's declaration
only and expects the application to implement it.
config LWIP_HOOK_IP6_SELECT_SRC_ADDR_NONE
bool "No hook declared"
config LWIP_HOOK_IP6_SELECT_SRC_ADDR_DEFAULT
bool "Default (weak) implementation"
config LWIP_HOOK_IP6_SELECT_SRC_ADDR_CUSTOM
bool "Custom implementation"
endchoice
choice LWIP_HOOK_NETCONN_EXTERNAL_RESOLVE
prompt "Netconn external resolve Hook"
default LWIP_HOOK_NETCONN_EXT_RESOLVE_DEFAULT if OPENTHREAD_DNS64_CLIENT

2
components/lwip/lwip

@ -1 +1 @@
Subproject commit dafc8225313a1ce00fb0b497d09f43ec7073857d
Subproject commit 57c29648ff40e2a19a51683717928aaf766a0495

12
components/lwip/port/hooks/lwip_default_hooks.c
View File

@ -41,7 +41,17 @@ const ip6_addr_t *__weak lwip_hook_nd6_get_gw(struct netif *netif, const ip6_add
LWIP_UNUSED_ARG(netif);
LWIP_UNUSED_ARG(dest);
return 0;
return NULL;
}
#endif
#ifdef CONFIG_LWIP_HOOK_IP6_SELECT_SRC_ADDR_DEFAULT
const ip_addr_t *__weak lwip_hook_ip6_select_source_address(struct netif *netif, const ip6_addr_t *dest)
{
LWIP_UNUSED_ARG(netif);
LWIP_UNUSED_ARG(dest);
return NULL;
}
#endif

6
components/lwip/port/include/lwip_default_hooks.h
View File

@ -43,6 +43,12 @@ const ip6_addr_t *lwip_hook_nd6_get_gw(struct netif *netif, const ip6_addr_t *de
#define LWIP_HOOK_ND6_GET_GW lwip_hook_nd6_get_gw
#endif /* CONFIG_LWIP_HOOK_ND6_GET_GATEWAY... */
#if defined(CONFIG_LWIP_HOOK_IP6_SELECT_SRC_ADDR_CUSTOM) || defined(CONFIG_LWIP_HOOK_IP6_SELECT_SRC_ADDR_DEFAULT)
const ip_addr_t *lwip_hook_ip6_select_source_address(struct netif *netif, const ip6_addr_t *dest);
#define LWIP_HOOK_IP6_SELECT_SRC_ADDR lwip_hook_ip6_select_source_address
#endif /* CONFIG_LWIP_HOOK_IP6_SELECT_SRC_ADDR... */
#if defined(CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_CUSTOM) || defined(CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_DEFAULT)
int lwip_hook_netconn_external_resolve(const char *name, ip_addr_t *addr, u8_t addrtype, err_t *err);