mirror of
https://github.com/lwip-tcpip/lwip.git
synced 2024-11-16 14:11:02 +00:00
62 lines
2.9 KiB
C
62 lines
2.9 KiB
C
/*
|
|
* Copyright (c) Espressif Systems (Shanghai) CO LTD
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
|
* are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the copyright holder nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* To use these additional DHCP options, make sure this file is included in LWIP_HOOK_FILENAME
|
|
* and define these hooks:
|
|
*
|
|
* #define LWIP_HOOK_DHCP_PARSE_OPTION(netif, dhcp, state, msg, msg_type, option, len, pbuf, offset) \
|
|
* do { LWIP_UNUSED_ARG(msg); \
|
|
* dhcp_parse_extra_opts(dhcp, state, option, len, pbuf, offset); \
|
|
* } while(0)
|
|
*
|
|
* #define LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, state, msg, msg_type, options_len_ptr) \
|
|
* dhcp_append_extra_opts(netif, state, msg, options_len_ptr);
|
|
*
|
|
* To enable (disable) these option, please set one or both of the below macros to 1 (0)
|
|
* #define LWIP_DHCP_ENABLE_MTU_UPDATE 1
|
|
* #define LWIP_DHCP_ENABLE_CLIENT_ID 1
|
|
*/
|
|
|
|
#ifndef LWIP_HDR_CONTRIB_ADDONS_DHCP_OPTS_H
|
|
#define LWIP_HDR_CONTRIB_ADDONS_DHCP_OPTS_H
|
|
|
|
/* Add standard integers so the header could be included before lwip */
|
|
#include <stdint.h>
|
|
|
|
/* Forward declare lwip structs */
|
|
struct dhcp;
|
|
struct pbuf;
|
|
struct dhcp;
|
|
struct netif;
|
|
struct dhcp_msg;
|
|
|
|
/* Internal hook functions */
|
|
void dhcp_parse_extra_opts(struct dhcp *dhcp, uint8_t state, uint8_t option, uint8_t len, struct pbuf* p, uint16_t offset);
|
|
void dhcp_append_extra_opts(struct netif *netif, uint8_t state, struct dhcp_msg *msg_out, uint16_t *options_out_len);
|
|
|
|
#endif /* LWIP_HDR_CONTRIB_ADDONS_DHCP_OPTS_H */
|