ipsec.h revision 253088
1105197Ssam/* $FreeBSD: head/sys/netipsec/ipsec.h 253088 2013-07-09 10:08:13Z ae $ */ 2105197Ssam/* $KAME: ipsec.h,v 1.53 2001/11/20 08:32:38 itojun Exp $ */ 3105197Ssam 4139823Simp/*- 5105197Ssam * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 6105197Ssam * All rights reserved. 7105197Ssam * 8105197Ssam * Redistribution and use in source and binary forms, with or without 9105197Ssam * modification, are permitted provided that the following conditions 10105197Ssam * are met: 11105197Ssam * 1. Redistributions of source code must retain the above copyright 12105197Ssam * notice, this list of conditions and the following disclaimer. 13105197Ssam * 2. Redistributions in binary form must reproduce the above copyright 14105197Ssam * notice, this list of conditions and the following disclaimer in the 15105197Ssam * documentation and/or other materials provided with the distribution. 16105197Ssam * 3. Neither the name of the project nor the names of its contributors 17105197Ssam * may be used to endorse or promote products derived from this software 18105197Ssam * without specific prior written permission. 19105197Ssam * 20105197Ssam * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21105197Ssam * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22105197Ssam * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23105197Ssam * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24105197Ssam * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25105197Ssam * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26105197Ssam * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27105197Ssam * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28105197Ssam * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29105197Ssam * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30105197Ssam * SUCH DAMAGE. 31105197Ssam */ 32105197Ssam 33105197Ssam/* 34105197Ssam * IPsec controller part. 35105197Ssam */ 36105197Ssam 37105197Ssam#ifndef _NETIPSEC_IPSEC_H_ 38105197Ssam#define _NETIPSEC_IPSEC_H_ 39105197Ssam 40105197Ssam#if defined(_KERNEL) && !defined(_LKM) && !defined(KLD_MODULE) 41105197Ssam#include "opt_inet.h" 42105197Ssam#include "opt_ipsec.h" 43105197Ssam#endif 44105197Ssam 45105197Ssam#include <net/pfkeyv2.h> 46105197Ssam#include <netipsec/keydb.h> 47105197Ssam 48105197Ssam#ifdef _KERNEL 49105197Ssam 50179067Sgnn#define IPSEC_ASSERT(_c,_m) KASSERT(_c, _m) 51179067Sgnn 52179067Sgnn#define IPSEC_IS_PRIVILEGED_SO(_so) \ 53179067Sgnn ((_so)->so_cred != NULL && \ 54179067Sgnn priv_check_cred((_so)->so_cred, PRIV_NETINET_IPSEC, 0) \ 55179067Sgnn == 0) 56179067Sgnn 57105197Ssam/* 58105197Ssam * Security Policy Index 59105197Ssam * Ensure that both address families in the "src" and "dst" are same. 60105197Ssam * When the value of the ul_proto is ICMPv6, the port field in "src" 61105197Ssam * specifies ICMPv6 type, and the port field in "dst" specifies ICMPv6 code. 62105197Ssam */ 63105197Ssamstruct secpolicyindex { 64196882Spjd u_int8_t dir; /* direction of packet flow, see below */ 65105197Ssam union sockaddr_union src; /* IP src address for SP */ 66105197Ssam union sockaddr_union dst; /* IP dst address for SP */ 67105197Ssam u_int8_t prefs; /* prefix length in bits for src */ 68105197Ssam u_int8_t prefd; /* prefix length in bits for dst */ 69105197Ssam u_int16_t ul_proto; /* upper layer Protocol */ 70105197Ssam#ifdef notyet 71105197Ssam uid_t uids; 72105197Ssam uid_t uidd; 73105197Ssam gid_t gids; 74105197Ssam gid_t gidd; 75105197Ssam#endif 76105197Ssam}; 77105197Ssam 78105197Ssam/* Security Policy Data Base */ 79105197Ssamstruct secpolicy { 80105197Ssam LIST_ENTRY(secpolicy) chain; 81119643Ssam struct mtx lock; 82105197Ssam 83105197Ssam u_int refcnt; /* reference count */ 84105197Ssam struct secpolicyindex spidx; /* selector */ 85105197Ssam u_int32_t id; /* It's unique number on the system. */ 86105197Ssam u_int state; /* 0: dead, others: alive */ 87105197Ssam#define IPSEC_SPSTATE_DEAD 0 88105197Ssam#define IPSEC_SPSTATE_ALIVE 1 89120585Ssam u_int16_t policy; /* policy_type per pfkeyv2.h */ 90120585Ssam u_int16_t scangen; /* scan generation # */ 91105197Ssam struct ipsecrequest *req; 92105197Ssam /* pointer to the ipsec request tree, */ 93105197Ssam /* if policy == IPSEC else this value == NULL.*/ 94105197Ssam 95105197Ssam /* 96105197Ssam * lifetime handler. 97105197Ssam * the policy can be used without limitiation if both lifetime and 98105197Ssam * validtime are zero. 99105197Ssam * "lifetime" is passed by sadb_lifetime.sadb_lifetime_addtime. 100105197Ssam * "validtime" is passed by sadb_lifetime.sadb_lifetime_usetime. 101105197Ssam */ 102120585Ssam time_t created; /* time created the policy */ 103120585Ssam time_t lastused; /* updated every when kernel sends a packet */ 104105197Ssam long lifetime; /* duration of the lifetime of this policy */ 105105197Ssam long validtime; /* duration this policy is valid without use */ 106105197Ssam}; 107105197Ssam 108120585Ssam#define SECPOLICY_LOCK_INIT(_sp) \ 109120585Ssam mtx_init(&(_sp)->lock, "ipsec policy", NULL, MTX_DEF) 110120585Ssam#define SECPOLICY_LOCK(_sp) mtx_lock(&(_sp)->lock) 111120585Ssam#define SECPOLICY_UNLOCK(_sp) mtx_unlock(&(_sp)->lock) 112120585Ssam#define SECPOLICY_LOCK_DESTROY(_sp) mtx_destroy(&(_sp)->lock) 113120585Ssam#define SECPOLICY_LOCK_ASSERT(_sp) mtx_assert(&(_sp)->lock, MA_OWNED) 114120585Ssam 115105197Ssam/* Request for IPsec */ 116105197Ssamstruct ipsecrequest { 117105197Ssam struct ipsecrequest *next; 118105197Ssam /* pointer to next structure */ 119105197Ssam /* If NULL, it means the end of chain. */ 120105197Ssam struct secasindex saidx;/* hint for search proper SA */ 121105197Ssam /* if __ss_len == 0 then no address specified.*/ 122105197Ssam u_int level; /* IPsec level defined below. */ 123105197Ssam 124105197Ssam struct secasvar *sav; /* place holder of SA for use */ 125105197Ssam struct secpolicy *sp; /* back pointer to SP */ 126220206Sfabient struct rwlock lock; /* to interlock updates */ 127105197Ssam}; 128105197Ssam 129120585Ssam/* 130120585Ssam * Need recursion for when crypto callbacks happen directly, 131120585Ssam * as in the case of software crypto. Need to look at how 132120585Ssam * hard it is to remove this... 133120585Ssam */ 134120585Ssam#define IPSECREQUEST_LOCK_INIT(_isr) \ 135220206Sfabient rw_init_flags(&(_isr)->lock, "ipsec request", RW_RECURSE) 136220206Sfabient#define IPSECREQUEST_LOCK(_isr) rw_rlock(&(_isr)->lock) 137220206Sfabient#define IPSECREQUEST_UNLOCK(_isr) rw_runlock(&(_isr)->lock) 138220206Sfabient#define IPSECREQUEST_WLOCK(_isr) rw_wlock(&(_isr)->lock) 139220206Sfabient#define IPSECREQUEST_WUNLOCK(_isr) rw_wunlock(&(_isr)->lock) 140220206Sfabient#define IPSECREQUEST_UPGRADE(_isr) rw_try_upgrade(&(_isr)->lock) 141220206Sfabient#define IPSECREQUEST_DOWNGRADE(_isr) rw_downgrade(&(_isr)->lock) 142220206Sfabient#define IPSECREQUEST_LOCK_DESTROY(_isr) rw_destroy(&(_isr)->lock) 143220206Sfabient#define IPSECREQUEST_LOCK_ASSERT(_isr) rw_assert(&(_isr)->lock, RA_LOCKED) 144120585Ssam 145105197Ssam/* security policy in PCB */ 146105197Ssamstruct inpcbpolicy { 147105197Ssam struct secpolicy *sp_in; 148105197Ssam struct secpolicy *sp_out; 149105197Ssam int priv; /* privileged socket ? */ 150105197Ssam}; 151105197Ssam 152105197Ssam/* SP acquiring list table. */ 153105197Ssamstruct secspacq { 154105197Ssam LIST_ENTRY(secspacq) chain; 155105197Ssam 156105197Ssam struct secpolicyindex spidx; 157105197Ssam 158120585Ssam time_t created; /* for lifetime */ 159105197Ssam int count; /* for lifetime */ 160105197Ssam /* XXX: here is mbuf place holder to be sent ? */ 161105197Ssam}; 162105197Ssam#endif /* _KERNEL */ 163105197Ssam 164105197Ssam/* according to IANA assignment, port 0x0000 and proto 0xff are reserved. */ 165105197Ssam#define IPSEC_PORT_ANY 0 166105197Ssam#define IPSEC_ULPROTO_ANY 255 167105197Ssam#define IPSEC_PROTO_ANY 255 168105197Ssam 169105197Ssam/* mode of security protocol */ 170105197Ssam/* NOTE: DON'T use IPSEC_MODE_ANY at SPD. It's only use in SAD */ 171105197Ssam#define IPSEC_MODE_ANY 0 /* i.e. wildcard. */ 172105197Ssam#define IPSEC_MODE_TRANSPORT 1 173105197Ssam#define IPSEC_MODE_TUNNEL 2 174125680Sbms#define IPSEC_MODE_TCPMD5 3 /* TCP MD5 mode */ 175105197Ssam 176105197Ssam/* 177105197Ssam * Direction of security policy. 178105197Ssam * NOTE: Since INVALID is used just as flag. 179105197Ssam * The other are used for loop counter too. 180105197Ssam */ 181105197Ssam#define IPSEC_DIR_ANY 0 182105197Ssam#define IPSEC_DIR_INBOUND 1 183105197Ssam#define IPSEC_DIR_OUTBOUND 2 184105197Ssam#define IPSEC_DIR_MAX 3 185105197Ssam#define IPSEC_DIR_INVALID 4 186105197Ssam 187105197Ssam/* Policy level */ 188105197Ssam/* 189105197Ssam * IPSEC, ENTRUST and BYPASS are allowed for setsockopt() in PCB, 190105197Ssam * DISCARD, IPSEC and NONE are allowed for setkey() in SPD. 191105197Ssam * DISCARD and NONE are allowed for system default. 192105197Ssam */ 193105197Ssam#define IPSEC_POLICY_DISCARD 0 /* discarding packet */ 194105197Ssam#define IPSEC_POLICY_NONE 1 /* through IPsec engine */ 195105197Ssam#define IPSEC_POLICY_IPSEC 2 /* do IPsec */ 196105197Ssam#define IPSEC_POLICY_ENTRUST 3 /* consulting SPD if present. */ 197105197Ssam#define IPSEC_POLICY_BYPASS 4 /* only for privileged socket. */ 198105197Ssam 199105197Ssam/* Security protocol level */ 200105197Ssam#define IPSEC_LEVEL_DEFAULT 0 /* reference to system default */ 201105197Ssam#define IPSEC_LEVEL_USE 1 /* use SA if present. */ 202105197Ssam#define IPSEC_LEVEL_REQUIRE 2 /* require SA. */ 203105197Ssam#define IPSEC_LEVEL_UNIQUE 3 /* unique SA. */ 204105197Ssam 205105197Ssam#define IPSEC_MANUAL_REQID_MAX 0x3fff 206105197Ssam /* 207105197Ssam * if security policy level == unique, this id 208105197Ssam * indicate to a relative SA for use, else is 209105197Ssam * zero. 210105197Ssam * 1 - 0x3fff are reserved for manual keying. 211105197Ssam * 0 are reserved for above reason. Others is 212105197Ssam * for kernel use. 213105197Ssam * Note that this id doesn't identify SA 214105197Ssam * by only itself. 215105197Ssam */ 216105197Ssam#define IPSEC_REPLAYWSIZE 32 217105197Ssam 218171133Sgnn/* statistics for ipsec processing */ 219105197Ssamstruct ipsecstat { 220253081Sae uint64_t in_success; /* succeeded inbound process */ 221253081Sae uint64_t in_polvio; 222105197Ssam /* security policy violation for inbound process */ 223253081Sae uint64_t in_nosa; /* inbound SA is unavailable */ 224253081Sae uint64_t in_inval; /* inbound processing failed due to EINVAL */ 225253081Sae uint64_t in_nomem; /* inbound processing failed due to ENOBUFS */ 226253081Sae uint64_t in_badspi; /* failed getting a SPI */ 227253081Sae uint64_t in_ahreplay; /* AH replay check failed */ 228253081Sae uint64_t in_espreplay; /* ESP replay check failed */ 229253081Sae uint64_t in_ahauthsucc; /* AH authentication success */ 230253081Sae uint64_t in_ahauthfail; /* AH authentication failure */ 231253081Sae uint64_t in_espauthsucc; /* ESP authentication success */ 232253081Sae uint64_t in_espauthfail; /* ESP authentication failure */ 233253081Sae uint64_t in_esphist[256]; 234253081Sae uint64_t in_ahhist[256]; 235253081Sae uint64_t in_comphist[256]; 236253081Sae uint64_t out_success; /* succeeded outbound process */ 237253081Sae uint64_t out_polvio; 238105197Ssam /* security policy violation for outbound process */ 239253081Sae uint64_t out_nosa; /* outbound SA is unavailable */ 240253081Sae uint64_t out_inval; /* outbound process failed due to EINVAL */ 241253081Sae uint64_t out_nomem; /* inbound processing failed due to ENOBUFS */ 242253081Sae uint64_t out_noroute; /* there is no route */ 243253081Sae uint64_t out_esphist[256]; 244253081Sae uint64_t out_ahhist[256]; 245253081Sae uint64_t out_comphist[256]; 246125098Ssam 247253081Sae uint64_t spdcachelookup; 248253081Sae uint64_t spdcachemiss; 249105197Ssam 250253081Sae uint64_t ips_in_polvio; /* input: sec policy violation */ 251253081Sae uint64_t ips_out_polvio; /* output: sec policy violation */ 252253081Sae uint64_t ips_out_nosa; /* output: SA unavailable */ 253253081Sae uint64_t ips_out_nomem; /* output: no memory available */ 254253081Sae uint64_t ips_out_noroute; /* output: no route available */ 255253081Sae uint64_t ips_out_inval; /* output: generic error */ 256253081Sae uint64_t ips_out_bundlesa; /* output: bundled SA processed */ 257253081Sae uint64_t ips_mbcoalesced; /* mbufs coalesced during clone */ 258253081Sae uint64_t ips_clcoalesced; /* clusters coalesced during clone */ 259253081Sae uint64_t ips_clcopied; /* clusters copied during clone */ 260253081Sae uint64_t ips_mbinserted; /* mbufs inserted during makespace */ 261105197Ssam /* 262105197Ssam * Temporary statistics for performance analysis. 263105197Ssam */ 264105197Ssam /* See where ESP/AH/IPCOMP header land in mbuf on input */ 265253081Sae uint64_t ips_input_front; 266253081Sae uint64_t ips_input_middle; 267253081Sae uint64_t ips_input_end; 268105197Ssam}; 269105197Ssam 270105197Ssam/* 271105197Ssam * Definitions for IPsec & Key sysctl operations. 272105197Ssam */ 273105197Ssam/* 274105197Ssam * Names for IPsec & Key sysctl objects 275105197Ssam */ 276105197Ssam#define IPSECCTL_STATS 1 /* stats */ 277105197Ssam#define IPSECCTL_DEF_POLICY 2 278105197Ssam#define IPSECCTL_DEF_ESP_TRANSLEV 3 /* int; ESP transport mode */ 279105197Ssam#define IPSECCTL_DEF_ESP_NETLEV 4 /* int; ESP tunnel mode */ 280105197Ssam#define IPSECCTL_DEF_AH_TRANSLEV 5 /* int; AH transport mode */ 281105197Ssam#define IPSECCTL_DEF_AH_NETLEV 6 /* int; AH tunnel mode */ 282105197Ssam#if 0 /* obsolete, do not reuse */ 283105197Ssam#define IPSECCTL_INBOUND_CALL_IKE 7 284105197Ssam#endif 285105197Ssam#define IPSECCTL_AH_CLEARTOS 8 286105197Ssam#define IPSECCTL_AH_OFFSETMASK 9 287105197Ssam#define IPSECCTL_DFBIT 10 288105197Ssam#define IPSECCTL_ECN 11 289105197Ssam#define IPSECCTL_DEBUG 12 290105197Ssam#define IPSECCTL_ESP_RANDPAD 13 291105197Ssam#define IPSECCTL_MAXID 14 292105197Ssam 293105197Ssam#define IPSECCTL_NAMES { \ 294105197Ssam { 0, 0 }, \ 295105197Ssam { 0, 0 }, \ 296105197Ssam { "def_policy", CTLTYPE_INT }, \ 297105197Ssam { "esp_trans_deflev", CTLTYPE_INT }, \ 298105197Ssam { "esp_net_deflev", CTLTYPE_INT }, \ 299105197Ssam { "ah_trans_deflev", CTLTYPE_INT }, \ 300105197Ssam { "ah_net_deflev", CTLTYPE_INT }, \ 301105197Ssam { 0, 0 }, \ 302105197Ssam { "ah_cleartos", CTLTYPE_INT }, \ 303105197Ssam { "ah_offsetmask", CTLTYPE_INT }, \ 304105197Ssam { "dfbit", CTLTYPE_INT }, \ 305105197Ssam { "ecn", CTLTYPE_INT }, \ 306105197Ssam { "debug", CTLTYPE_INT }, \ 307105197Ssam { "esp_randpad", CTLTYPE_INT }, \ 308105197Ssam} 309105197Ssam 310105197Ssam#define IPSEC6CTL_NAMES { \ 311105197Ssam { 0, 0 }, \ 312105197Ssam { 0, 0 }, \ 313105197Ssam { "def_policy", CTLTYPE_INT }, \ 314105197Ssam { "esp_trans_deflev", CTLTYPE_INT }, \ 315105197Ssam { "esp_net_deflev", CTLTYPE_INT }, \ 316105197Ssam { "ah_trans_deflev", CTLTYPE_INT }, \ 317105197Ssam { "ah_net_deflev", CTLTYPE_INT }, \ 318105197Ssam { 0, 0 }, \ 319105197Ssam { 0, 0 }, \ 320105197Ssam { 0, 0 }, \ 321105197Ssam { 0, 0 }, \ 322105197Ssam { "ecn", CTLTYPE_INT }, \ 323105197Ssam { "debug", CTLTYPE_INT }, \ 324105197Ssam { "esp_randpad", CTLTYPE_INT }, \ 325105197Ssam} 326105197Ssam 327105197Ssam#ifdef _KERNEL 328253088Sae#include <sys/counter.h> 329253088Sae 330105197Ssamstruct ipsec_output_state { 331105197Ssam struct mbuf *m; 332105197Ssam struct route *ro; 333105197Ssam struct sockaddr *dst; 334105197Ssam}; 335105197Ssam 336105197Ssamstruct ipsec_history { 337105197Ssam int ih_proto; 338105197Ssam u_int32_t ih_spi; 339105197Ssam}; 340105197Ssam 341195699SrwatsonVNET_DECLARE(int, ipsec_debug); 342195727Srwatson#define V_ipsec_debug VNET(ipsec_debug) 343207369Sbz 344207369Sbz#ifdef REGRESSION 345207369SbzVNET_DECLARE(int, ipsec_replay); 346207369SbzVNET_DECLARE(int, ipsec_integrity); 347207369Sbz 348207369Sbz#define V_ipsec_replay VNET(ipsec_replay) 349207369Sbz#define V_ipsec_integrity VNET(ipsec_integrity) 350207369Sbz#endif 351207369Sbz 352253088SaeVNET_PCPUSTAT_DECLARE(struct ipsecstat, ipsec4stat); 353207369SbzVNET_DECLARE(struct secpolicy, ip4_def_policy); 354207369SbzVNET_DECLARE(int, ip4_esp_trans_deflev); 355207369SbzVNET_DECLARE(int, ip4_esp_net_deflev); 356207369SbzVNET_DECLARE(int, ip4_ah_trans_deflev); 357207369SbzVNET_DECLARE(int, ip4_ah_net_deflev); 358195699SrwatsonVNET_DECLARE(int, ip4_ah_offsetmask); 359195699SrwatsonVNET_DECLARE(int, ip4_ipsec_dfbit); 360207369SbzVNET_DECLARE(int, ip4_ipsec_ecn); 361207369SbzVNET_DECLARE(int, ip4_esp_randpad); 362207369SbzVNET_DECLARE(int, crypto_support); 363207369Sbz 364253088Sae#define IPSECSTAT_INC(name) \ 365253088Sae VNET_PCPUSTAT_ADD(struct ipsecstat, ipsec4stat, name, 1) 366207369Sbz#define V_ip4_def_policy VNET(ip4_def_policy) 367195727Srwatson#define V_ip4_esp_trans_deflev VNET(ip4_esp_trans_deflev) 368195727Srwatson#define V_ip4_esp_net_deflev VNET(ip4_esp_net_deflev) 369195727Srwatson#define V_ip4_ah_trans_deflev VNET(ip4_ah_trans_deflev) 370195727Srwatson#define V_ip4_ah_net_deflev VNET(ip4_ah_net_deflev) 371207369Sbz#define V_ip4_ah_offsetmask VNET(ip4_ah_offsetmask) 372207369Sbz#define V_ip4_ipsec_dfbit VNET(ip4_ipsec_dfbit) 373195727Srwatson#define V_ip4_ipsec_ecn VNET(ip4_ipsec_ecn) 374195727Srwatson#define V_ip4_esp_randpad VNET(ip4_esp_randpad) 375195727Srwatson#define V_crypto_support VNET(crypto_support) 376195699Srwatson 377181803Sbz#define ipseclog(x) do { if (V_ipsec_debug) log x; } while (0) 378105197Ssam/* for openbsd compatibility */ 379181803Sbz#define DPRINTF(x) do { if (V_ipsec_debug) printf x; } while (0) 380105197Ssam 381119643Ssamextern struct ipsecrequest *ipsec_newisr(void); 382119643Ssamextern void ipsec_delisr(struct ipsecrequest *); 383119643Ssam 384105197Ssamstruct tdb_ident; 385105197Ssamextern struct secpolicy *ipsec_getpolicy __P((struct tdb_ident*, u_int)); 386105197Ssamstruct inpcb; 387105197Ssamextern struct secpolicy *ipsec4_checkpolicy __P((struct mbuf *, u_int, u_int, 388105197Ssam int *, struct inpcb *)); 389105197Ssamextern struct secpolicy * ipsec_getpolicybyaddr(struct mbuf *, u_int, 390105197Ssam int, int *); 391105197Ssam 392105197Ssamstruct inpcb; 393105197Ssamextern int ipsec_init_policy __P((struct socket *so, struct inpcbpolicy **)); 394105197Ssamextern int ipsec_copy_policy 395105197Ssam __P((struct inpcbpolicy *, struct inpcbpolicy *)); 396105197Ssamextern u_int ipsec_get_reqlevel __P((struct ipsecrequest *)); 397105197Ssamextern int ipsec_in_reject __P((struct secpolicy *, struct mbuf *)); 398105197Ssam 399188306Sbzextern int ipsec_set_policy __P((struct inpcb *inp, int optname, 400175892Sbz caddr_t request, size_t len, struct ucred *cred)); 401188306Sbzextern int ipsec_get_policy __P((struct inpcb *inpcb, caddr_t request, 402105197Ssam size_t len, struct mbuf **mp)); 403185366Sbzextern int ipsec_delete_pcbpolicy __P((struct inpcb *)); 404105197Ssamextern int ipsec4_in_reject __P((struct mbuf *, struct inpcb *)); 405105197Ssam 406105197Ssamstruct secas; 407105197Ssamstruct tcpcb; 408105197Ssamextern int ipsec_chkreplay __P((u_int32_t, struct secasvar *)); 409105197Ssamextern int ipsec_updatereplay __P((u_int32_t, struct secasvar *)); 410105197Ssam 411188306Sbzextern size_t ipsec_hdrsiz __P((struct mbuf *, u_int, struct inpcb *)); 412105197Ssamextern size_t ipsec_hdrsiz_tcp __P((struct tcpcb *)); 413105197Ssam 414105197Ssamunion sockaddr_union; 415105197Ssamextern char * ipsec_address(union sockaddr_union* sa); 416105197Ssamextern const char *ipsec_logsastr __P((struct secasvar *)); 417105197Ssam 418105197Ssamextern void ipsec_dumpmbuf __P((struct mbuf *)); 419105197Ssam 420105197Ssamstruct m_tag; 421106680Ssamextern void ah4_input(struct mbuf *m, int off); 422120585Ssamextern void ah4_ctlinput(int cmd, struct sockaddr *sa, void *); 423106680Ssamextern void esp4_input(struct mbuf *m, int off); 424120585Ssamextern void esp4_ctlinput(int cmd, struct sockaddr *sa, void *); 425106680Ssamextern void ipcomp4_input(struct mbuf *m, int off); 426105197Ssamextern int ipsec4_common_input(struct mbuf *m, ...); 427105197Ssamextern int ipsec4_common_input_cb(struct mbuf *m, struct secasvar *sav, 428105197Ssam int skip, int protoff, struct m_tag *mt); 429105197Ssamextern int ipsec4_process_packet __P((struct mbuf *, struct ipsecrequest *, 430105197Ssam int, int)); 431105197Ssamextern int ipsec_process_done __P((struct mbuf *, struct ipsecrequest *)); 432105197Ssam 433105197Ssamextern struct mbuf *ipsec_copypkt __P((struct mbuf *)); 434105197Ssam 435105197Ssamextern void m_checkalignment(const char* where, struct mbuf *m0, 436105197Ssam int off, int len); 437105197Ssamextern struct mbuf *m_makespace(struct mbuf *m0, int skip, int hlen, int *off); 438105197Ssamextern caddr_t m_pad(struct mbuf *m, int n); 439105197Ssamextern int m_striphdr(struct mbuf *m, int skip, int hlen); 440174054Sbz 441174054Sbz#ifdef DEV_ENC 442174054Sbz#define ENC_BEFORE 0x0001 443174054Sbz#define ENC_AFTER 0x0002 444174054Sbz#define ENC_IN 0x0100 445174054Sbz#define ENC_OUT 0x0200 446174054Sbzextern int ipsec_filter(struct mbuf **, int, int); 447174054Sbzextern void ipsec_bpf(struct mbuf *, struct secasvar *, int, int); 448174054Sbz#endif 449105197Ssam#endif /* _KERNEL */ 450105197Ssam 451105197Ssam#ifndef _KERNEL 452105197Ssamextern caddr_t ipsec_set_policy __P((char *, int)); 453105197Ssamextern int ipsec_get_policylen __P((caddr_t)); 454105197Ssamextern char *ipsec_dump_policy __P((caddr_t, char *)); 455105197Ssam 456105197Ssamextern const char *ipsec_strerror __P((void)); 457105197Ssam 458183550Szec#endif /* ! KERNEL */ 459183550Szec 460105197Ssam#endif /* _NETIPSEC_IPSEC_H_ */ 461