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feat(lwip): Add DHCP extra option hook

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Closes https://github.com/espressif/esp-idf/issues/15329
This commit is contained in:
David Cermak
2025-02-13 16:35:03 +01:00
parent 108006419a
commit 54a58c05e6
5 changed files with 132 additions and 1 deletions
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18
components/lwip/port/hooks/lwip_default_hooks.c
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2020-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -189,6 +189,18 @@ int dhcp_set_vendor_class_identifier(uint8_t len, const char * str)
}
#endif /* LWIP_DHCP_ENABLE_VENDOR_SPEC_IDS */
#if defined(CONFIG_LWIP_HOOK_DHCP_EXTRA_OPTION_DEFAULT)
void __weak lwip_dhcp_on_extra_option(struct dhcp *dhcp, uint8_t state, uint8_t option, uint8_t len, struct pbuf* p, uint16_t offset)
{
LWIP_UNUSED_ARG(dhcp);
LWIP_UNUSED_ARG(state);
LWIP_UNUSED_ARG(len);
LWIP_UNUSED_ARG(p);
LWIP_UNUSED_ARG(offset);
LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("lwip_dhcp_on_extra_option(): Received DHCP option %d\n", option));
}
#endif /* CONFIG_LWIP_HOOK_DHCP_EXTRA_OPTION_DEFAULT */
void dhcp_parse_extra_opts(struct dhcp *dhcp, uint8_t state, uint8_t option, uint8_t len, struct pbuf* p, uint16_t offset)
{
LWIP_UNUSED_ARG(dhcp);
@@ -229,6 +241,10 @@ void dhcp_parse_extra_opts(struct dhcp *dhcp, uint8_t state, uint8_t option, uin
pbuf_copy_partial(p, &dhcp_option_vsi, copy_len, offset) == copy_len, return;);
} /* DHCP_OPTION_VSI */
#endif /* LWIP_DHCP_ENABLE_VENDOR_SPEC_IDS */
#if !defined(CONFIG_LWIP_HOOK_DHCP_EXTRA_OPTION_NONE)
lwip_dhcp_on_extra_option(dhcp, state, option, len, p, offset);
#endif
}
void dhcp_append_extra_opts(struct netif *netif, uint8_t state, struct dhcp_msg *msg_out, uint16_t *options_out_len)