0,0 → 1,358 |
/*!\file netinet6/ipsec.h |
* |
*/ |
|
/* $FreeBSD: src/sys/netinet6/ipsec.h,v 1.9 2002/04/19 04:46:23 suz Exp $ */ |
/* $KAME: ipsec.h,v 1.53 2001/11/20 08:32:38 itojun Exp $ */ |
|
/* |
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
* 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 project 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 PROJECT 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 PROJECT 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. |
*/ |
|
/* |
* IPsec controller part. |
*/ |
|
#ifndef _NETINET6_IPSEC_H_ |
#define _NETINET6_IPSEC_H_ |
|
#if defined(_KERNEL) && !defined(_LKM) && !defined(KLD_MODULE) |
#include "opt_inet.h" |
#include "opt_ipsec.h" |
#endif |
|
#include <net/pfkeyv2.h> |
#include <netkey/keydb.h> |
|
#ifdef _KERNEL |
|
/* |
* Security Policy Index |
* Ensure that both address families in the "src" and "dst" are same. |
* When the value of the ul_proto is ICMPv6, the port field in "src" |
* specifies ICMPv6 type, and the port field in "dst" specifies ICMPv6 code. |
*/ |
struct secpolicyindex { |
u_int8_t dir; /* direction of packet flow, see blow */ |
struct sockaddr_storage src; /* IP src address for SP */ |
struct sockaddr_storage dst; /* IP dst address for SP */ |
u_int8_t prefs; /* prefix length in bits for src */ |
u_int8_t prefd; /* prefix length in bits for dst */ |
u_int16_t ul_proto; /* upper layer Protocol */ |
#ifdef notyet |
uid_t uids; |
uid_t uidd; |
gid_t gids; |
gid_t gidd; |
#endif |
}; |
|
/* Security Policy Data Base */ |
struct secpolicy { |
LIST_ENTRY(secpolicy) chain; |
|
int refcnt; /* reference count */ |
struct secpolicyindex spidx; /* selector */ |
u_int32_t id; /* It's unique number on the system. */ |
u_int state; /* 0: dead, others: alive */ |
#define IPSEC_SPSTATE_DEAD 0 |
#define IPSEC_SPSTATE_ALIVE 1 |
|
u_int policy; /* DISCARD, NONE or IPSEC, see keyv2.h */ |
struct ipsecrequest *req; |
/* pointer to the ipsec request tree, */ |
/* if policy == IPSEC else this value == NULL.*/ |
|
/* |
* lifetime handler. |
* the policy can be used without limitiation if both lifetime and |
* validtime are zero. |
* "lifetime" is passed by sadb_lifetime.sadb_lifetime_addtime. |
* "validtime" is passed by sadb_lifetime.sadb_lifetime_usetime. |
*/ |
long created; /* time created the policy */ |
long lastused; /* updated every when kernel sends a packet */ |
long lifetime; /* duration of the lifetime of this policy */ |
long validtime; /* duration this policy is valid without use */ |
}; |
|
/* Request for IPsec */ |
struct ipsecrequest { |
struct ipsecrequest *next; |
/* pointer to next structure */ |
/* If NULL, it means the end of chain. */ |
struct secasindex saidx;/* hint for search proper SA */ |
/* if __ss_len == 0 then no address specified.*/ |
u_int level; /* IPsec level defined below. */ |
|
struct secasvar *sav; /* place holder of SA for use */ |
struct secpolicy *sp; /* back pointer to SP */ |
}; |
|
/* security policy in PCB */ |
struct inpcbpolicy { |
struct secpolicy *sp_in; |
struct secpolicy *sp_out; |
int priv; /* privileged socket ? */ |
}; |
|
/* SP acquiring list table. */ |
struct secspacq { |
LIST_ENTRY(secspacq) chain; |
|
struct secpolicyindex spidx; |
|
long created; /* for lifetime */ |
int count; /* for lifetime */ |
/* XXX: here is mbuf place holder to be sent ? */ |
}; |
#endif /* _KERNEL */ |
|
/* according to IANA assignment, port 0x0000 and proto 0xff are reserved. */ |
#define IPSEC_PORT_ANY 0 |
#define IPSEC_ULPROTO_ANY 255 |
#define IPSEC_PROTO_ANY 255 |
|
/* mode of security protocol */ |
/* NOTE: DON'T use IPSEC_MODE_ANY at SPD. It's only use in SAD */ |
#define IPSEC_MODE_ANY 0 /* i.e. wildcard. */ |
#define IPSEC_MODE_TRANSPORT 1 |
#define IPSEC_MODE_TUNNEL 2 |
|
/* |
* Direction of security policy. |
* NOTE: Since INVALID is used just as flag. |
* The other are used for loop counter too. |
*/ |
#define IPSEC_DIR_ANY 0 |
#define IPSEC_DIR_INBOUND 1 |
#define IPSEC_DIR_OUTBOUND 2 |
#define IPSEC_DIR_MAX 3 |
#define IPSEC_DIR_INVALID 4 |
|
/* Policy level */ |
/* |
* IPSEC, ENTRUST and BYPASS are allowed for setsockopt() in PCB, |
* DISCARD, IPSEC and NONE are allowed for setkey() in SPD. |
* DISCARD and NONE are allowed for system default. |
*/ |
#define IPSEC_POLICY_DISCARD 0 /* discarding packet */ |
#define IPSEC_POLICY_NONE 1 /* through IPsec engine */ |
#define IPSEC_POLICY_IPSEC 2 /* do IPsec */ |
#define IPSEC_POLICY_ENTRUST 3 /* consulting SPD if present. */ |
#define IPSEC_POLICY_BYPASS 4 /* only for privileged socket. */ |
|
/* Security protocol level */ |
#define IPSEC_LEVEL_DEFAULT 0 /* reference to system default */ |
#define IPSEC_LEVEL_USE 1 /* use SA if present. */ |
#define IPSEC_LEVEL_REQUIRE 2 /* require SA. */ |
#define IPSEC_LEVEL_UNIQUE 3 /* unique SA. */ |
|
#define IPSEC_MANUAL_REQID_MAX 0x3fff |
/* |
* if security policy level == unique, this id |
* indicate to a relative SA for use, else is |
* zero. |
* 1 - 0x3fff are reserved for manual keying. |
* 0 are reserved for above reason. Others is |
* for kernel use. |
* Note that this id doesn't identify SA |
* by only itself. |
*/ |
#define IPSEC_REPLAYWSIZE 32 |
|
/* statistics for ipsec processing */ |
struct ipsecstat { |
u_quad_t in_success; /* succeeded inbound process */ |
u_quad_t in_polvio; |
/* security policy violation for inbound process */ |
u_quad_t in_nosa; /* inbound SA is unavailable */ |
u_quad_t in_inval; /* inbound processing failed due to EINVAL */ |
u_quad_t in_nomem; /* inbound processing failed due to ENOBUFS */ |
u_quad_t in_badspi; /* failed getting a SPI */ |
u_quad_t in_ahreplay; /* AH replay check failed */ |
u_quad_t in_espreplay; /* ESP replay check failed */ |
u_quad_t in_ahauthsucc; /* AH authentication success */ |
u_quad_t in_ahauthfail; /* AH authentication failure */ |
u_quad_t in_espauthsucc; /* ESP authentication success */ |
u_quad_t in_espauthfail; /* ESP authentication failure */ |
u_quad_t in_esphist[256]; |
u_quad_t in_ahhist[256]; |
u_quad_t in_comphist[256]; |
u_quad_t out_success; /* succeeded outbound process */ |
u_quad_t out_polvio; |
/* security policy violation for outbound process */ |
u_quad_t out_nosa; /* outbound SA is unavailable */ |
u_quad_t out_inval; /* outbound process failed due to EINVAL */ |
u_quad_t out_nomem; /* inbound processing failed due to ENOBUFS */ |
u_quad_t out_noroute; /* there is no route */ |
u_quad_t out_esphist[256]; |
u_quad_t out_ahhist[256]; |
u_quad_t out_comphist[256]; |
}; |
|
/* |
* Definitions for IPsec & Key sysctl operations. |
*/ |
/* |
* Names for IPsec & Key sysctl objects |
*/ |
#define IPSECCTL_STATS 1 /* stats */ |
#define IPSECCTL_DEF_POLICY 2 |
#define IPSECCTL_DEF_ESP_TRANSLEV 3 /* int; ESP transport mode */ |
#define IPSECCTL_DEF_ESP_NETLEV 4 /* int; ESP tunnel mode */ |
#define IPSECCTL_DEF_AH_TRANSLEV 5 /* int; AH transport mode */ |
#define IPSECCTL_DEF_AH_NETLEV 6 /* int; AH tunnel mode */ |
#if 0 /* obsolete, do not reuse */ |
#define IPSECCTL_INBOUND_CALL_IKE 7 |
#endif |
#define IPSECCTL_AH_CLEARTOS 8 |
#define IPSECCTL_AH_OFFSETMASK 9 |
#define IPSECCTL_DFBIT 10 |
#define IPSECCTL_ECN 11 |
#define IPSECCTL_DEBUG 12 |
#define IPSECCTL_ESP_RANDPAD 13 |
#define IPSECCTL_MAXID 14 |
|
#define IPSECCTL_NAMES { \ |
{ 0, 0 }, \ |
{ 0, 0 }, \ |
{ "def_policy", CTLTYPE_INT }, \ |
{ "esp_trans_deflev", CTLTYPE_INT }, \ |
{ "esp_net_deflev", CTLTYPE_INT }, \ |
{ "ah_trans_deflev", CTLTYPE_INT }, \ |
{ "ah_net_deflev", CTLTYPE_INT }, \ |
{ 0, 0 }, \ |
{ "ah_cleartos", CTLTYPE_INT }, \ |
{ "ah_offsetmask", CTLTYPE_INT }, \ |
{ "dfbit", CTLTYPE_INT }, \ |
{ "ecn", CTLTYPE_INT }, \ |
{ "debug", CTLTYPE_INT }, \ |
{ "esp_randpad", CTLTYPE_INT }, \ |
} |
|
#define IPSEC6CTL_NAMES { \ |
{ 0, 0 }, \ |
{ 0, 0 }, \ |
{ "def_policy", CTLTYPE_INT }, \ |
{ "esp_trans_deflev", CTLTYPE_INT }, \ |
{ "esp_net_deflev", CTLTYPE_INT }, \ |
{ "ah_trans_deflev", CTLTYPE_INT }, \ |
{ "ah_net_deflev", CTLTYPE_INT }, \ |
{ 0, 0 }, \ |
{ 0, 0 }, \ |
{ 0, 0 }, \ |
{ 0, 0 }, \ |
{ "ecn", CTLTYPE_INT }, \ |
{ "debug", CTLTYPE_INT }, \ |
{ "esp_randpad", CTLTYPE_INT }, \ |
} |
|
#ifdef _KERNEL |
struct ipsec_output_state { |
struct mbuf *m; |
struct route *ro; |
struct sockaddr *dst; |
}; |
|
struct ipsec_history { |
int ih_proto; |
u_int32_t ih_spi; |
}; |
|
extern int ipsec_debug; |
|
extern struct ipsecstat ipsecstat; |
extern struct secpolicy ip4_def_policy; |
extern int ip4_esp_trans_deflev; |
extern int ip4_esp_net_deflev; |
extern int ip4_ah_trans_deflev; |
extern int ip4_ah_net_deflev; |
extern int ip4_ah_cleartos; |
extern int ip4_ah_offsetmask; |
extern int ip4_ipsec_dfbit; |
extern int ip4_ipsec_ecn; |
extern int ip4_esp_randpad; |
|
#define ipseclog(x) do { if (ipsec_debug) log x; } while (0) |
|
extern struct secpolicy *ipsec4_getpolicybysock |
__P((struct mbuf *, u_int, struct socket *, int *)); |
extern struct secpolicy *ipsec4_getpolicybyaddr |
__P((struct mbuf *, u_int, int, int *)); |
|
struct inpcb; |
extern int ipsec_init_policy __P((struct socket *so, struct inpcbpolicy **)); |
extern int ipsec_copy_policy |
__P((struct inpcbpolicy *, struct inpcbpolicy *)); |
extern u_int ipsec_get_reqlevel __P((struct ipsecrequest *)); |
|
extern int ipsec4_set_policy __P((struct inpcb *inp, int optname, |
caddr_t request, size_t len, int priv)); |
extern int ipsec4_get_policy __P((struct inpcb *inpcb, caddr_t request, |
size_t len, struct mbuf **mp)); |
extern int ipsec4_delete_pcbpolicy __P((struct inpcb *)); |
extern int ipsec4_in_reject_so __P((struct mbuf *, struct socket *)); |
extern int ipsec4_in_reject __P((struct mbuf *, struct inpcb *)); |
|
struct secas; |
struct tcpcb; |
extern int ipsec_chkreplay __P((u_int32_t, struct secasvar *)); |
extern int ipsec_updatereplay __P((u_int32_t, struct secasvar *)); |
|
extern size_t ipsec4_hdrsiz __P((struct mbuf *, u_int, struct inpcb *)); |
extern size_t ipsec_hdrsiz_tcp __P((struct tcpcb *)); |
|
struct ip; |
extern const char *ipsec4_logpacketstr __P((struct ip *, u_int32_t)); |
extern const char *ipsec_logsastr __P((struct secasvar *)); |
|
extern void ipsec_dumpmbuf __P((struct mbuf *)); |
|
extern int ipsec4_output __P((struct ipsec_output_state *, struct secpolicy *, |
int)); |
extern int ipsec4_tunnel_validate __P((struct mbuf *, int, u_int, |
struct secasvar *)); |
extern struct mbuf *ipsec_copypkt __P((struct mbuf *)); |
extern void ipsec_delaux __P((struct mbuf *)); |
extern int ipsec_setsocket __P((struct mbuf *, struct socket *)); |
extern struct socket *ipsec_getsocket __P((struct mbuf *)); |
extern int ipsec_addhist __P((struct mbuf *, int, u_int32_t)); |
extern struct ipsec_history *ipsec_gethist __P((struct mbuf *, int *)); |
extern void ipsec_clearhist __P((struct mbuf *)); |
#endif /* _KERNEL */ |
|
#ifndef _KERNEL |
extern caddr_t ipsec_set_policy __P((char *, int)); |
extern int ipsec_get_policylen __P((caddr_t)); |
extern char *ipsec_dump_policy __P((caddr_t, char *)); |
|
extern const char *ipsec_strerror __P((void)); |
#endif /* !_KERNEL */ |
|
#endif /* _NETINET6_IPSEC_H_ */ |