mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-11-15 14:56:13 +01:00
191 lines
7.2 KiB
C
191 lines
7.2 KiB
C
|
/*-
|
||
|
|
* Copyright (c) 2016 Andrey V. Elsukov <ae@FreeBSD.org>
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* $FreeBSD$
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _NETIPSEC_IPSEC_SUPPORT_H_
|
||
|
|
#define _NETIPSEC_IPSEC_SUPPORT_H_
|
||
|
|
|
||
|
|
#ifdef _KERNEL
|
||
|
|
#if defined(IPSEC) || defined(IPSEC_SUPPORT)
|
||
|
|
struct mbuf;
|
||
|
|
struct inpcb;
|
||
|
|
struct tcphdr;
|
||
|
|
struct sockopt;
|
||
|
|
struct sockaddr;
|
||
|
|
struct ipsec_support;
|
||
|
|
struct tcpmd5_support;
|
||
|
|
|
||
|
|
size_t ipsec_hdrsiz_inpcb(struct inpcb *);
|
||
|
|
int ipsec_init_pcbpolicy(struct inpcb *);
|
||
|
|
int ipsec_delete_pcbpolicy(struct inpcb *);
|
||
|
|
int ipsec_copy_pcbpolicy(struct inpcb *, struct inpcb *);
|
||
|
|
|
||
|
|
struct ipsec_methods {
|
||
|
|
int (*input)(struct mbuf *, int, int);
|
||
|
|
int (*check_policy)(const struct mbuf *, struct inpcb *);
|
||
|
|
int (*forward)(struct mbuf *);
|
||
|
|
int (*output)(struct mbuf *, struct inpcb *);
|
||
|
|
int (*pcbctl)(struct inpcb *, struct sockopt *);
|
||
|
|
size_t (*hdrsize)(struct inpcb *);
|
||
|
|
int (*capability)(struct mbuf *, u_int);
|
||
|
|
int (*ctlinput)(int, struct sockaddr *, void *);
|
||
|
|
|
||
|
|
int (*udp_input)(struct mbuf *, int, int);
|
||
|
|
int (*udp_pcbctl)(struct inpcb *, struct sockopt *);
|
||
|
|
};
|
||
|
|
#define IPSEC_CAP_OPERABLE 1
|
||
|
|
#define IPSEC_CAP_BYPASS_FILTER 2
|
||
|
|
|
||
|
|
struct tcpmd5_methods {
|
||
|
|
int (*input)(struct mbuf *, struct tcphdr *, u_char *);
|
||
|
|
int (*output)(struct mbuf *, struct tcphdr *, u_char *);
|
||
|
|
int (*pcbctl)(struct inpcb *, struct sockopt *);
|
||
|
|
};
|
||
|
|
|
||
|
|
#define IPSEC_MODULE_ENABLED 0x0001
|
||
|
|
#define IPSEC_ENABLED(proto) \
|
||
|
|
((proto ## _ipsec_support)->enabled & IPSEC_MODULE_ENABLED)
|
||
|
|
#define TCPMD5_ENABLED() IPSEC_ENABLED(tcp)
|
||
|
|
|
||
|
|
#ifdef TCP_SIGNATURE
|
||
|
|
/* TCP-MD5 build in the kernel */
|
||
|
|
struct tcpmd5_support {
|
||
|
|
const u_int enabled;
|
||
|
|
const struct tcpmd5_methods * const methods;
|
||
|
|
};
|
||
|
|
extern const struct tcpmd5_support * const tcp_ipsec_support;
|
||
|
|
|
||
|
|
#define TCPMD5_INPUT(m, ...) \
|
||
|
|
(*tcp_ipsec_support->methods->input)(m, __VA_ARGS__)
|
||
|
|
#define TCPMD5_OUTPUT(m, ...) \
|
||
|
|
(*tcp_ipsec_support->methods->output)(m, __VA_ARGS__)
|
||
|
|
#define TCPMD5_PCBCTL(inp, sopt) \
|
||
|
|
(*tcp_ipsec_support->methods->pcbctl)(inp, sopt)
|
||
|
|
#elif defined(IPSEC_SUPPORT)
|
||
|
|
/* TCP-MD5 build as module */
|
||
|
|
struct tcpmd5_support {
|
||
|
|
volatile u_int enabled;
|
||
|
|
const struct tcpmd5_methods * volatile methods;
|
||
|
|
};
|
||
|
|
extern struct tcpmd5_support * const tcp_ipsec_support;
|
||
|
|
|
||
|
|
void tcpmd5_support_enable(const struct tcpmd5_methods * const);
|
||
|
|
void tcpmd5_support_disable(void);
|
||
|
|
|
||
|
|
int tcpmd5_kmod_pcbctl(struct tcpmd5_support * const, struct inpcb *,
|
||
|
|
struct sockopt *);
|
||
|
|
int tcpmd5_kmod_input(struct tcpmd5_support * const, struct mbuf *,
|
||
|
|
struct tcphdr *, u_char *);
|
||
|
|
int tcpmd5_kmod_output(struct tcpmd5_support * const, struct mbuf *,
|
||
|
|
struct tcphdr *, u_char *);
|
||
|
|
#define TCPMD5_INPUT(m, ...) \
|
||
|
|
tcpmd5_kmod_input(tcp_ipsec_support, m, __VA_ARGS__)
|
||
|
|
#define TCPMD5_OUTPUT(m, ...) \
|
||
|
|
tcpmd5_kmod_output(tcp_ipsec_support, m, __VA_ARGS__)
|
||
|
|
#define TCPMD5_PCBCTL(inp, sopt) \
|
||
|
|
tcpmd5_kmod_pcbctl(tcp_ipsec_support, inp, sopt)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* IPSEC || IPSEC_SUPPORT */
|
||
|
|
|
||
|
|
#if defined(IPSEC)
|
||
|
|
struct ipsec_support {
|
||
|
|
const u_int enabled;
|
||
|
|
const struct ipsec_methods * const methods;
|
||
|
|
};
|
||
|
|
extern const struct ipsec_support * const ipv4_ipsec_support;
|
||
|
|
extern const struct ipsec_support * const ipv6_ipsec_support;
|
||
|
|
|
||
|
|
#define IPSEC_INPUT(proto, m, ...) \
|
||
|
|
(*(proto ## _ipsec_support)->methods->input)(m, __VA_ARGS__)
|
||
|
|
#define IPSEC_CHECK_POLICY(proto, m, ...) \
|
||
|
|
(*(proto ## _ipsec_support)->methods->check_policy)(m, __VA_ARGS__)
|
||
|
|
#define IPSEC_FORWARD(proto, m) \
|
||
|
|
(*(proto ## _ipsec_support)->methods->forward)(m)
|
||
|
|
#define IPSEC_OUTPUT(proto, m, ...) \
|
||
|
|
(*(proto ## _ipsec_support)->methods->output)(m, __VA_ARGS__)
|
||
|
|
#define IPSEC_PCBCTL(proto, inp, sopt) \
|
||
|
|
(*(proto ## _ipsec_support)->methods->pcbctl)(inp, sopt)
|
||
|
|
#define IPSEC_CAPS(proto, m, ...) \
|
||
|
|
(*(proto ## _ipsec_support)->methods->capability)(m, __VA_ARGS__)
|
||
|
|
#define IPSEC_HDRSIZE(proto, inp) \
|
||
|
|
(*(proto ## _ipsec_support)->methods->hdrsize)(inp)
|
||
|
|
|
||
|
|
#define UDPENCAP_INPUT(m, ...) \
|
||
|
|
(*ipv4_ipsec_support->methods->udp_input)(m, __VA_ARGS__)
|
||
|
|
#define UDPENCAP_PCBCTL(inp, sopt) \
|
||
|
|
(*ipv4_ipsec_support->methods->udp_pcbctl)(inp, sopt)
|
||
|
|
|
||
|
|
#elif defined(IPSEC_SUPPORT)
|
||
|
|
struct ipsec_support {
|
||
|
|
volatile u_int enabled;
|
||
|
|
const struct ipsec_methods * volatile methods;
|
||
|
|
};
|
||
|
|
extern struct ipsec_support * const ipv4_ipsec_support;
|
||
|
|
extern struct ipsec_support * const ipv6_ipsec_support;
|
||
|
|
|
||
|
|
void ipsec_support_enable(struct ipsec_support * const,
|
||
|
|
const struct ipsec_methods * const);
|
||
|
|
void ipsec_support_disable(struct ipsec_support * const);
|
||
|
|
|
||
|
|
int ipsec_kmod_input(struct ipsec_support * const, struct mbuf *, int, int);
|
||
|
|
int ipsec_kmod_check_policy(struct ipsec_support * const, struct mbuf *,
|
||
|
|
struct inpcb *);
|
||
|
|
int ipsec_kmod_forward(struct ipsec_support * const, struct mbuf *);
|
||
|
|
int ipsec_kmod_output(struct ipsec_support * const, struct mbuf *,
|
||
|
|
struct inpcb *);
|
||
|
|
int ipsec_kmod_pcbctl(struct ipsec_support * const, struct inpcb *,
|
||
|
|
struct sockopt *);
|
||
|
|
int ipsec_kmod_capability(struct ipsec_support * const, struct mbuf *, u_int);
|
||
|
|
size_t ipsec_kmod_hdrsize(struct ipsec_support * const, struct inpcb *);
|
||
|
|
int ipsec_kmod_udp_input(struct ipsec_support * const, struct mbuf *, int, int);
|
||
|
|
int ipsec_kmod_udp_pcbctl(struct ipsec_support * const, struct inpcb *,
|
||
|
|
struct sockopt *);
|
||
|
|
|
||
|
|
#define UDPENCAP_INPUT(m, ...) \
|
||
|
|
ipsec_kmod_udp_input(ipv4_ipsec_support, m, __VA_ARGS__)
|
||
|
|
#define UDPENCAP_PCBCTL(inp, sopt) \
|
||
|
|
ipsec_kmod_udp_pcbctl(ipv4_ipsec_support, inp, sopt)
|
||
|
|
|
||
|
|
#define IPSEC_INPUT(proto, ...) \
|
||
|
|
ipsec_kmod_input(proto ## _ipsec_support, __VA_ARGS__)
|
||
|
|
#define IPSEC_CHECK_POLICY(proto, ...) \
|
||
|
|
ipsec_kmod_check_policy(proto ## _ipsec_support, __VA_ARGS__)
|
||
|
|
#define IPSEC_FORWARD(proto, ...) \
|
||
|
|
ipsec_kmod_forward(proto ## _ipsec_support, __VA_ARGS__)
|
||
|
|
#define IPSEC_OUTPUT(proto, ...) \
|
||
|
|
ipsec_kmod_output(proto ## _ipsec_support, __VA_ARGS__)
|
||
|
|
#define IPSEC_PCBCTL(proto, ...) \
|
||
|
|
ipsec_kmod_pcbctl(proto ## _ipsec_support, __VA_ARGS__)
|
||
|
|
#define IPSEC_CAPS(proto, ...) \
|
||
|
|
ipsec_kmod_capability(proto ## _ipsec_support, __VA_ARGS__)
|
||
|
|
#define IPSEC_HDRSIZE(proto, ...) \
|
||
|
|
ipsec_kmod_hdrsize(proto ## _ipsec_support, __VA_ARGS__)
|
||
|
|
#endif /* IPSEC_SUPPORT */
|
||
|
|
#endif /* _KERNEL */
|
||
|
|
#endif /* _NETIPSEC_IPSEC_SUPPORT_H_ */
|