The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/netipsec/ipsec.h

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /*      $FreeBSD: releng/8.3/sys/netipsec/ipsec.h 221525 2011-05-06 13:24:10Z fabient $ */
    2 /*      $KAME: ipsec.h,v 1.53 2001/11/20 08:32:38 itojun Exp $  */
    3 
    4 /*-
    5  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. Neither the name of the project nor the names of its contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
   24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  */
   32 
   33 /*
   34  * IPsec controller part.
   35  */
   36 
   37 #ifndef _NETIPSEC_IPSEC_H_
   38 #define _NETIPSEC_IPSEC_H_
   39 
   40 #if defined(_KERNEL) && !defined(_LKM) && !defined(KLD_MODULE)
   41 #include "opt_inet.h"
   42 #include "opt_ipsec.h"
   43 #endif
   44 
   45 #include <net/pfkeyv2.h>
   46 #include <netipsec/keydb.h>
   47 
   48 #ifdef _KERNEL
   49 
   50 #define IPSEC_ASSERT(_c,_m) KASSERT(_c, _m)
   51 
   52 #define IPSEC_IS_PRIVILEGED_SO(_so) \
   53         ((_so)->so_cred != NULL && \
   54          priv_check_cred((_so)->so_cred, PRIV_NETINET_IPSEC, 0) \
   55          == 0)
   56 
   57 /*
   58  * Security Policy Index
   59  * Ensure that both address families in the "src" and "dst" are same.
   60  * When the value of the ul_proto is ICMPv6, the port field in "src"
   61  * specifies ICMPv6 type, and the port field in "dst" specifies ICMPv6 code.
   62  */
   63 struct secpolicyindex {
   64         u_int8_t dir;                   /* direction of packet flow, see blow */
   65         union sockaddr_union src;       /* IP src address for SP */
   66         union sockaddr_union dst;       /* IP dst address for SP */
   67         u_int8_t prefs;                 /* prefix length in bits for src */
   68         u_int8_t prefd;                 /* prefix length in bits for dst */
   69         u_int16_t ul_proto;             /* upper layer Protocol */
   70 #ifdef notyet
   71         uid_t uids;
   72         uid_t uidd;
   73         gid_t gids;
   74         gid_t gidd;
   75 #endif
   76 };
   77 
   78 /* Security Policy Data Base */
   79 struct secpolicy {
   80         LIST_ENTRY(secpolicy) chain;
   81         struct mtx lock;
   82 
   83         u_int refcnt;                   /* reference count */
   84         struct secpolicyindex spidx;    /* selector */
   85         u_int32_t id;                   /* It's unique number on the system. */
   86         u_int state;                    /* 0: dead, others: alive */
   87 #define IPSEC_SPSTATE_DEAD      0
   88 #define IPSEC_SPSTATE_ALIVE     1
   89         u_int16_t policy;               /* policy_type per pfkeyv2.h */
   90         u_int16_t scangen;              /* scan generation # */
   91         struct ipsecrequest *req;
   92                                 /* pointer to the ipsec request tree, */
   93                                 /* if policy == IPSEC else this value == NULL.*/
   94 
   95         /*
   96          * lifetime handler.
   97          * the policy can be used without limitiation if both lifetime and
   98          * validtime are zero.
   99          * "lifetime" is passed by sadb_lifetime.sadb_lifetime_addtime.
  100          * "validtime" is passed by sadb_lifetime.sadb_lifetime_usetime.
  101          */
  102         time_t created;         /* time created the policy */
  103         time_t lastused;        /* updated every when kernel sends a packet */
  104         long lifetime;          /* duration of the lifetime of this policy */
  105         long validtime;         /* duration this policy is valid without use */
  106 };
  107 
  108 #define SECPOLICY_LOCK_INIT(_sp) \
  109         mtx_init(&(_sp)->lock, "ipsec policy", NULL, MTX_DEF)
  110 #define SECPOLICY_LOCK(_sp)             mtx_lock(&(_sp)->lock)
  111 #define SECPOLICY_UNLOCK(_sp)           mtx_unlock(&(_sp)->lock)
  112 #define SECPOLICY_LOCK_DESTROY(_sp)     mtx_destroy(&(_sp)->lock)
  113 #define SECPOLICY_LOCK_ASSERT(_sp)      mtx_assert(&(_sp)->lock, MA_OWNED)
  114 
  115 /* Request for IPsec */
  116 struct ipsecrequest {
  117         struct ipsecrequest *next;
  118                                 /* pointer to next structure */
  119                                 /* If NULL, it means the end of chain. */
  120         struct secasindex saidx;/* hint for search proper SA */
  121                                 /* if __ss_len == 0 then no address specified.*/
  122         u_int level;            /* IPsec level defined below. */
  123 
  124         struct secasvar *sav;   /* place holder of SA for use */
  125         struct secpolicy *sp;   /* back pointer to SP */
  126         struct rwlock lock;     /* to interlock updates */
  127 };
  128 
  129 /*
  130  * Need recursion for when crypto callbacks happen directly,
  131  * as in the case of software crypto.  Need to look at how
  132  * hard it is to remove this...
  133  */
  134 #define IPSECREQUEST_LOCK_INIT(_isr) \
  135         rw_init_flags(&(_isr)->lock, "ipsec request", RW_RECURSE)
  136 #define IPSECREQUEST_LOCK(_isr)         rw_rlock(&(_isr)->lock)
  137 #define IPSECREQUEST_UNLOCK(_isr)       rw_runlock(&(_isr)->lock)
  138 #define IPSECREQUEST_WLOCK(_isr)        rw_wlock(&(_isr)->lock)
  139 #define IPSECREQUEST_WUNLOCK(_isr)      rw_wunlock(&(_isr)->lock)
  140 #define IPSECREQUEST_UPGRADE(_isr)      rw_try_upgrade(&(_isr)->lock)
  141 #define IPSECREQUEST_DOWNGRADE(_isr)    rw_downgrade(&(_isr)->lock)
  142 #define IPSECREQUEST_LOCK_DESTROY(_isr) rw_destroy(&(_isr)->lock)
  143 #define IPSECREQUEST_LOCK_ASSERT(_isr)  rw_assert(&(_isr)->lock, RA_LOCKED)
  144 
  145 /* security policy in PCB */
  146 struct inpcbpolicy {
  147         struct secpolicy *sp_in;
  148         struct secpolicy *sp_out;
  149         int priv;                       /* privileged socket ? */
  150 };
  151 
  152 /* SP acquiring list table. */
  153 struct secspacq {
  154         LIST_ENTRY(secspacq) chain;
  155 
  156         struct secpolicyindex spidx;
  157 
  158         time_t created;         /* for lifetime */
  159         int count;              /* for lifetime */
  160         /* XXX: here is mbuf place holder to be sent ? */
  161 };
  162 #endif /* _KERNEL */
  163 
  164 /* according to IANA assignment, port 0x0000 and proto 0xff are reserved. */
  165 #define IPSEC_PORT_ANY          0
  166 #define IPSEC_ULPROTO_ANY       255
  167 #define IPSEC_PROTO_ANY         255
  168 
  169 /* mode of security protocol */
  170 /* NOTE: DON'T use IPSEC_MODE_ANY at SPD.  It's only use in SAD */
  171 #define IPSEC_MODE_ANY          0       /* i.e. wildcard. */
  172 #define IPSEC_MODE_TRANSPORT    1
  173 #define IPSEC_MODE_TUNNEL       2
  174 #define IPSEC_MODE_TCPMD5       3       /* TCP MD5 mode */
  175 
  176 /*
  177  * Direction of security policy.
  178  * NOTE: Since INVALID is used just as flag.
  179  * The other are used for loop counter too.
  180  */
  181 #define IPSEC_DIR_ANY           0
  182 #define IPSEC_DIR_INBOUND       1
  183 #define IPSEC_DIR_OUTBOUND      2
  184 #define IPSEC_DIR_MAX           3
  185 #define IPSEC_DIR_INVALID       4
  186 
  187 /* Policy level */
  188 /*
  189  * IPSEC, ENTRUST and BYPASS are allowed for setsockopt() in PCB,
  190  * DISCARD, IPSEC and NONE are allowed for setkey() in SPD.
  191  * DISCARD and NONE are allowed for system default.
  192  */
  193 #define IPSEC_POLICY_DISCARD    0       /* discarding packet */
  194 #define IPSEC_POLICY_NONE       1       /* through IPsec engine */
  195 #define IPSEC_POLICY_IPSEC      2       /* do IPsec */
  196 #define IPSEC_POLICY_ENTRUST    3       /* consulting SPD if present. */
  197 #define IPSEC_POLICY_BYPASS     4       /* only for privileged socket. */
  198 
  199 /* Security protocol level */
  200 #define IPSEC_LEVEL_DEFAULT     0       /* reference to system default */
  201 #define IPSEC_LEVEL_USE         1       /* use SA if present. */
  202 #define IPSEC_LEVEL_REQUIRE     2       /* require SA. */
  203 #define IPSEC_LEVEL_UNIQUE      3       /* unique SA. */
  204 
  205 #define IPSEC_MANUAL_REQID_MAX  0x3fff
  206                                 /*
  207                                  * if security policy level == unique, this id
  208                                  * indicate to a relative SA for use, else is
  209                                  * zero.
  210                                  * 1 - 0x3fff are reserved for manual keying.
  211                                  * 0 are reserved for above reason.  Others is
  212                                  * for kernel use.
  213                                  * Note that this id doesn't identify SA
  214                                  * by only itself.
  215                                  */
  216 #define IPSEC_REPLAYWSIZE  32
  217 
  218 /* statistics for ipsec processing */
  219 struct ipsecstat {
  220         u_quad_t in_success;  /* succeeded inbound process */
  221         u_quad_t in_polvio;
  222                         /* security policy violation for inbound process */
  223         u_quad_t in_nosa;     /* inbound SA is unavailable */
  224         u_quad_t in_inval;    /* inbound processing failed due to EINVAL */
  225         u_quad_t in_nomem;    /* inbound processing failed due to ENOBUFS */
  226         u_quad_t in_badspi;   /* failed getting a SPI */
  227         u_quad_t in_ahreplay; /* AH replay check failed */
  228         u_quad_t in_espreplay; /* ESP replay check failed */
  229         u_quad_t in_ahauthsucc; /* AH authentication success */
  230         u_quad_t in_ahauthfail; /* AH authentication failure */
  231         u_quad_t in_espauthsucc; /* ESP authentication success */
  232         u_quad_t in_espauthfail; /* ESP authentication failure */
  233         u_quad_t in_esphist[256];
  234         u_quad_t in_ahhist[256];
  235         u_quad_t in_comphist[256];
  236         u_quad_t out_success; /* succeeded outbound process */
  237         u_quad_t out_polvio;
  238                         /* security policy violation for outbound process */
  239         u_quad_t out_nosa;    /* outbound SA is unavailable */
  240         u_quad_t out_inval;   /* outbound process failed due to EINVAL */
  241         u_quad_t out_nomem;    /* inbound processing failed due to ENOBUFS */
  242         u_quad_t out_noroute; /* there is no route */
  243         u_quad_t out_esphist[256];
  244         u_quad_t out_ahhist[256];
  245         u_quad_t out_comphist[256];
  246 
  247         u_quad_t spdcachelookup;
  248         u_quad_t spdcachemiss;
  249 
  250         u_int32_t ips_in_polvio;        /* input: sec policy violation */
  251         u_int32_t ips_out_polvio;       /* output: sec policy violation */
  252         u_int32_t ips_out_nosa;         /* output: SA unavailable  */
  253         u_int32_t ips_out_nomem;        /* output: no memory available */
  254         u_int32_t ips_out_noroute;      /* output: no route available */
  255         u_int32_t ips_out_inval;        /* output: generic error */
  256         u_int32_t ips_out_bundlesa;     /* output: bundled SA processed */
  257         u_int32_t ips_mbcoalesced;      /* mbufs coalesced during clone */
  258         u_int32_t ips_clcoalesced;      /* clusters coalesced during clone */
  259         u_int32_t ips_clcopied;         /* clusters copied during clone */
  260         u_int32_t ips_mbinserted;       /* mbufs inserted during makespace */
  261         /* 
  262          * Temporary statistics for performance analysis.
  263          */
  264         /* See where ESP/AH/IPCOMP header land in mbuf on input */
  265         u_int32_t ips_input_front;
  266         u_int32_t ips_input_middle;
  267         u_int32_t ips_input_end;
  268 };
  269 
  270 /*
  271  * Definitions for IPsec & Key sysctl operations.
  272  */
  273 /*
  274  * Names for IPsec & Key sysctl objects
  275  */
  276 #define IPSECCTL_STATS                  1       /* stats */
  277 #define IPSECCTL_DEF_POLICY             2
  278 #define IPSECCTL_DEF_ESP_TRANSLEV       3       /* int; ESP transport mode */
  279 #define IPSECCTL_DEF_ESP_NETLEV         4       /* int; ESP tunnel mode */
  280 #define IPSECCTL_DEF_AH_TRANSLEV        5       /* int; AH transport mode */
  281 #define IPSECCTL_DEF_AH_NETLEV          6       /* int; AH tunnel mode */
  282 #if 0   /* obsolete, do not reuse */
  283 #define IPSECCTL_INBOUND_CALL_IKE       7
  284 #endif
  285 #define IPSECCTL_AH_CLEARTOS            8
  286 #define IPSECCTL_AH_OFFSETMASK          9
  287 #define IPSECCTL_DFBIT                  10
  288 #define IPSECCTL_ECN                    11
  289 #define IPSECCTL_DEBUG                  12
  290 #define IPSECCTL_ESP_RANDPAD            13
  291 #define IPSECCTL_MAXID                  14
  292 
  293 #define IPSECCTL_NAMES { \
  294         { 0, 0 }, \
  295         { 0, 0 }, \
  296         { "def_policy", CTLTYPE_INT }, \
  297         { "esp_trans_deflev", CTLTYPE_INT }, \
  298         { "esp_net_deflev", CTLTYPE_INT }, \
  299         { "ah_trans_deflev", CTLTYPE_INT }, \
  300         { "ah_net_deflev", CTLTYPE_INT }, \
  301         { 0, 0 }, \
  302         { "ah_cleartos", CTLTYPE_INT }, \
  303         { "ah_offsetmask", CTLTYPE_INT }, \
  304         { "dfbit", CTLTYPE_INT }, \
  305         { "ecn", CTLTYPE_INT }, \
  306         { "debug", CTLTYPE_INT }, \
  307         { "esp_randpad", CTLTYPE_INT }, \
  308 }
  309 
  310 #define IPSEC6CTL_NAMES { \
  311         { 0, 0 }, \
  312         { 0, 0 }, \
  313         { "def_policy", CTLTYPE_INT }, \
  314         { "esp_trans_deflev", CTLTYPE_INT }, \
  315         { "esp_net_deflev", CTLTYPE_INT }, \
  316         { "ah_trans_deflev", CTLTYPE_INT }, \
  317         { "ah_net_deflev", CTLTYPE_INT }, \
  318         { 0, 0 }, \
  319         { 0, 0 }, \
  320         { 0, 0 }, \
  321         { 0, 0 }, \
  322         { "ecn", CTLTYPE_INT }, \
  323         { "debug", CTLTYPE_INT }, \
  324         { "esp_randpad", CTLTYPE_INT }, \
  325 }
  326 
  327 #ifdef _KERNEL
  328 struct ipsec_output_state {
  329         struct mbuf *m;
  330         struct route *ro;
  331         struct sockaddr *dst;
  332 };
  333 
  334 struct ipsec_history {
  335         int ih_proto;
  336         u_int32_t ih_spi;
  337 };
  338 
  339 VNET_DECLARE(int, ipsec_debug);
  340 #define V_ipsec_debug           VNET(ipsec_debug)
  341 
  342 #ifdef REGRESSION
  343 VNET_DECLARE(int, ipsec_replay);
  344 VNET_DECLARE(int, ipsec_integrity);
  345 
  346 #define V_ipsec_replay          VNET(ipsec_replay)
  347 #define V_ipsec_integrity       VNET(ipsec_integrity)
  348 #endif
  349 
  350 VNET_DECLARE(struct ipsecstat, ipsec4stat);
  351 VNET_DECLARE(struct secpolicy, ip4_def_policy);
  352 VNET_DECLARE(int, ip4_esp_trans_deflev);
  353 VNET_DECLARE(int, ip4_esp_net_deflev);
  354 VNET_DECLARE(int, ip4_ah_trans_deflev);
  355 VNET_DECLARE(int, ip4_ah_net_deflev);
  356 VNET_DECLARE(int, ip4_ah_offsetmask);
  357 VNET_DECLARE(int, ip4_ipsec_dfbit);
  358 VNET_DECLARE(int, ip4_ipsec_ecn);
  359 VNET_DECLARE(int, ip4_esp_randpad);
  360 VNET_DECLARE(int, crypto_support);
  361 
  362 #define V_ipsec4stat            VNET(ipsec4stat)
  363 #define V_ip4_def_policy        VNET(ip4_def_policy)
  364 #define V_ip4_esp_trans_deflev  VNET(ip4_esp_trans_deflev)
  365 #define V_ip4_esp_net_deflev    VNET(ip4_esp_net_deflev)
  366 #define V_ip4_ah_trans_deflev   VNET(ip4_ah_trans_deflev)
  367 #define V_ip4_ah_net_deflev     VNET(ip4_ah_net_deflev)
  368 #define V_ip4_ah_offsetmask     VNET(ip4_ah_offsetmask)
  369 #define V_ip4_ipsec_dfbit       VNET(ip4_ipsec_dfbit)
  370 #define V_ip4_ipsec_ecn         VNET(ip4_ipsec_ecn)
  371 #define V_ip4_esp_randpad       VNET(ip4_esp_randpad)
  372 #define V_crypto_support        VNET(crypto_support)
  373 
  374 #define ipseclog(x)     do { if (V_ipsec_debug) log x; } while (0)
  375 /* for openbsd compatibility */
  376 #define DPRINTF(x)      do { if (V_ipsec_debug) printf x; } while (0)
  377 
  378 extern  struct ipsecrequest *ipsec_newisr(void);
  379 extern  void ipsec_delisr(struct ipsecrequest *);
  380 
  381 struct tdb_ident;
  382 extern struct secpolicy *ipsec_getpolicy __P((struct tdb_ident*, u_int));
  383 struct inpcb;
  384 extern struct secpolicy *ipsec4_checkpolicy __P((struct mbuf *, u_int, u_int,
  385         int *, struct inpcb *));
  386 extern struct secpolicy * ipsec_getpolicybyaddr(struct mbuf *, u_int,
  387         int, int *);
  388 
  389 struct inpcb;
  390 extern int ipsec_init_policy __P((struct socket *so, struct inpcbpolicy **));
  391 extern int ipsec_copy_policy
  392         __P((struct inpcbpolicy *, struct inpcbpolicy *));
  393 extern u_int ipsec_get_reqlevel __P((struct ipsecrequest *));
  394 extern int ipsec_in_reject __P((struct secpolicy *, struct mbuf *));
  395 
  396 extern int ipsec_set_policy __P((struct inpcb *inp, int optname,
  397         caddr_t request, size_t len, struct ucred *cred));
  398 extern int ipsec_get_policy __P((struct inpcb *inpcb, caddr_t request,
  399         size_t len, struct mbuf **mp));
  400 extern int ipsec_delete_pcbpolicy __P((struct inpcb *));
  401 extern int ipsec4_in_reject __P((struct mbuf *, struct inpcb *));
  402 
  403 struct secas;
  404 struct tcpcb;
  405 extern int ipsec_chkreplay __P((u_int32_t, struct secasvar *));
  406 extern int ipsec_updatereplay __P((u_int32_t, struct secasvar *));
  407 
  408 extern size_t ipsec_hdrsiz __P((struct mbuf *, u_int, struct inpcb *));
  409 extern size_t ipsec_hdrsiz_tcp __P((struct tcpcb *));
  410 
  411 union sockaddr_union;
  412 extern char * ipsec_address(union sockaddr_union* sa);
  413 extern const char *ipsec_logsastr __P((struct secasvar *));
  414 
  415 extern void ipsec_dumpmbuf __P((struct mbuf *));
  416 
  417 struct m_tag;
  418 extern void ah4_input(struct mbuf *m, int off);
  419 extern void ah4_ctlinput(int cmd, struct sockaddr *sa, void *);
  420 extern void esp4_input(struct mbuf *m, int off);
  421 extern void esp4_ctlinput(int cmd, struct sockaddr *sa, void *);
  422 extern void ipcomp4_input(struct mbuf *m, int off);
  423 extern int ipsec4_common_input(struct mbuf *m, ...);
  424 extern int ipsec4_common_input_cb(struct mbuf *m, struct secasvar *sav,
  425                         int skip, int protoff, struct m_tag *mt);
  426 extern int ipsec4_process_packet __P((struct mbuf *, struct ipsecrequest *,
  427                         int, int));
  428 extern int ipsec_process_done __P((struct mbuf *, struct ipsecrequest *));
  429 
  430 extern struct mbuf *ipsec_copypkt __P((struct mbuf *));
  431 
  432 extern  void m_checkalignment(const char* where, struct mbuf *m0,
  433                 int off, int len);
  434 extern  struct mbuf *m_makespace(struct mbuf *m0, int skip, int hlen, int *off);
  435 extern  caddr_t m_pad(struct mbuf *m, int n);
  436 extern  int m_striphdr(struct mbuf *m, int skip, int hlen);
  437 
  438 #ifdef DEV_ENC
  439 #define ENC_BEFORE      0x0001
  440 #define ENC_AFTER       0x0002
  441 #define ENC_IN          0x0100
  442 #define ENC_OUT         0x0200
  443 extern  int ipsec_filter(struct mbuf **, int, int);
  444 extern  void ipsec_bpf(struct mbuf *, struct secasvar *, int, int);
  445 #endif
  446 #endif /* _KERNEL */
  447 
  448 #ifndef _KERNEL
  449 extern caddr_t ipsec_set_policy __P((char *, int));
  450 extern int ipsec_get_policylen __P((caddr_t));
  451 extern char *ipsec_dump_policy __P((caddr_t, char *));
  452 
  453 extern const char *ipsec_strerror __P((void));
  454 
  455 #endif /* ! KERNEL */
  456 
  457 #endif /* _NETIPSEC_IPSEC_H_ */

Cache object: 5aa1f24872e919d62a941aebf537d028


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.