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netif: add IPV4_ADDR_VALID ext status callback reason

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This ext-callback reason is always issued when an IPv4 config
has been set, even if it has not changed (e.g. DHCP reboot)

See bug #55121
This commit is contained in:
Simon Goldschmidt 2020-01-12 20:30:22 +01:00
parent bb31fbd737
commit 8a8058a436
2 changed files with 8 additions and 0 deletions
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6
src/core/netif.c
View File

@ -739,6 +739,12 @@ netif_set_addr(struct netif *netif, const ip4_addr_t *ipaddr, const ip4_addr_t *
#if LWIP_NETIF_EXT_STATUS_CALLBACK
if (change_reason != LWIP_NSC_NONE) {
change_reason |= LWIP_NSC_IPV4_SETTINGS_CHANGED;
}
if (!remove) {
/* Isssue a callback even if the address hasn't changed, eg. DHCP reboot */
change_reason |= LWIP_NSC_IPV4_ADDR_VALID;
}
if (change_reason != LWIP_NSC_NONE) {
netif_invoke_ext_callback(netif, change_reason, &cb_args);
}
#endif

2
src/include/lwip/netif.h
View File

@ -599,6 +599,8 @@ typedef u16_t netif_nsc_reason_t;
#define LWIP_NSC_IPV6_SET 0x0100
/** IPv6 address state has changed */
#define LWIP_NSC_IPV6_ADDR_STATE_CHANGED 0x0200
/** IPv4 settings: valid address set, application may start to communicate */
#define LWIP_NSC_IPV4_ADDR_VALID 0x0400
/** @ingroup netif
* Argument supplied to netif_ext_callback_fn.