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LwIP 2.2.1在STM32F407VET6平台 移植

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冯佳
2026-01-29 17:26:04 +08:00
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ThirdParty/lwip-2.2.1/contrib/addons/tcp_md5/tcp_md5.h vendored Normal file
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/*
* Copyright (c) 2018 Simon Goldschmidt
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* Author: Simon Goldschmidt <goldsimon@gmx.de>
*
* To use the hooks in this file, make sure this file is included in LWIP_HOOK_FILENAME
* and define these hooks:
*
* #define LWIP_HOOK_TCP_INPACKET_PCB(pcb, hdr, optlen, opt1len, opt2, p) tcp_md5_check_inpacket(pcb, hdr, optlen, opt1len, opt2, p)
* #define LWIP_HOOK_TCP_OPT_LENGTH_SEGMENT(pcb, internal_len) tcp_md5_get_additional_option_length(pcb, internal_len)
* #define LWIP_HOOK_TCP_ADD_TX_OPTIONS(p, hdr, pcb, opts) tcp_md5_add_tx_options(p, hdr, pcb, opts)
*
* #define LWIP_HOOK_SOCKETS_SETSOCKOPT(s, sock, level, optname, optval, optlen, err) tcp_md5_setsockopt_hook(sock, level, optname, optval, optlen, err)
*/
#ifndef LWIP_HDR_CONTRIB_ADDONS_TCP_MD5_H
#define LWIP_HDR_CONTRIB_ADDONS_TCP_MD5_H
#include "lwip/opt.h"
#include "lwip/ip_addr.h"
#include "lwip/err.h"
#include "lwip/priv/sockets_priv.h"
#include "lwip/priv/tcp_priv.h"
#ifdef __cplusplus
extern "C" {
#endif
/* setsockopt definitions and structs: */
/* This is the optname (for level = IPPROTO_TCP) */
#ifndef TCP_MD5SIG
#define TCP_MD5SIG 14
#endif
#define TCP_MD5SIG_MAXKEYLEN 80
/* This is the optval type */
struct tcp_md5sig {
struct sockaddr_storage tcpm_addr;
u16_t __tcpm_pad1;
u16_t tcpm_keylen;
u32_t __tcpm_pad2;
u8_t tcpm_key[TCP_MD5SIG_MAXKEYLEN];
};
/* socket setsockopt hook: */
int tcp_md5_setsockopt_hook(struct lwip_sock *sock, int level, int optname, const void *optval, u32_t optlen, int *err);
/* Internal hook functions */
void tcp_md5_init(void);
err_t tcp_md5_check_inpacket(struct tcp_pcb* pcb, struct tcp_hdr *hdr, u16_t optlen, u16_t opt1len, u8_t *opt2, struct pbuf *p);
u8_t tcp_md5_get_additional_option_length(const struct tcp_pcb *pcb, u8_t internal_option_length);
u32_t *tcp_md5_add_tx_options(struct pbuf *p, struct tcp_hdr *hdr, const struct tcp_pcb *pcb, u32_t *opts);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_CONTRIB_ADDONS_TCP_MD5_H */