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pfkey.c
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/* $KAME: pfkey.c,v 1.46 2003/08/26 03:37:06 itojun Exp $ */
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (C) 1995, 1996, 1997, 1998, and 1999 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <net/pfkeyv2.h>
#include <netipsec/key_var.h>
#include <netinet/in.h>
#include <netipsec/ipsec.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "ipsec_strerror.h"
#include "libpfkey.h"
#define CALLOC(size, cast) (cast)calloc(1, (size))
static int findsupportedmap(int);
static int setsupportedmap(struct sadb_supported *);
static struct sadb_alg *findsupportedalg(u_int, u_int);
static int pfkey_send_x1(int, u_int, u_int, u_int, struct sockaddr *,
struct sockaddr *, u_int32_t, u_int32_t, u_int, caddr_t,
u_int, u_int, u_int, u_int, u_int, u_int32_t, u_int32_t,
u_int32_t, u_int32_t, u_int32_t);
static int pfkey_send_x2(int, u_int, u_int, u_int,
struct sockaddr *, struct sockaddr *, u_int32_t);
static int pfkey_send_x3(int, u_int, u_int);
static int pfkey_send_x4(int, u_int, struct sockaddr *, u_int,
struct sockaddr *, u_int, u_int, u_int64_t, u_int64_t,
char *, int, u_int32_t);
static int pfkey_send_x5(int, u_int, u_int32_t);
static caddr_t pfkey_setsadbmsg(caddr_t, caddr_t, u_int, u_int,
u_int, u_int32_t, pid_t);
static caddr_t pfkey_setsadbsa(caddr_t, caddr_t, u_int32_t, u_int,
u_int, u_int, u_int32_t);
static caddr_t pfkey_setsadbxreplay(caddr_t, caddr_t, uint32_t);
static caddr_t pfkey_setsadbaddr(caddr_t, caddr_t, u_int,
struct sockaddr *, u_int, u_int);
static caddr_t pfkey_setsadbkey(caddr_t, caddr_t, u_int, caddr_t, u_int);
static caddr_t pfkey_setsadblifetime(caddr_t, caddr_t, u_int, u_int32_t,
u_int32_t, u_int32_t, u_int32_t);
static caddr_t pfkey_setsadbxsa2(caddr_t, caddr_t, u_int32_t, u_int32_t);
/*
* make and search supported algorithm structure.
*/
static struct sadb_supported *ipsec_supported[] = { NULL, NULL, NULL, NULL };
static int supported_map[] = {
SADB_SATYPE_AH,
SADB_SATYPE_ESP,
SADB_X_SATYPE_IPCOMP,
SADB_X_SATYPE_TCPSIGNATURE
};
static int
findsupportedmap(satype)
int satype;
{
int i;
for (i = 0; i < sizeof(supported_map)/sizeof(supported_map[0]); i++)
if (supported_map[i] == satype)
return i;
return -1;
}
static struct sadb_alg *
findsupportedalg(satype, alg_id)
u_int satype, alg_id;
{
int algno;
int tlen;
caddr_t p;
/* validity check */
algno = findsupportedmap(satype);
if (algno == -1) {
__ipsec_errcode = EIPSEC_INVAL_ARGUMENT;
return NULL;
}
if (ipsec_supported[algno] == NULL) {
__ipsec_errcode = EIPSEC_DO_GET_SUPP_LIST;
return NULL;
}
tlen = ipsec_supported[algno]->sadb_supported_len
- sizeof(struct sadb_supported);
p = (caddr_t)(ipsec_supported[algno] + 1);
while (tlen > 0) {
if (tlen < sizeof(struct sadb_alg)) {
/* invalid format */
break;
}
if (((struct sadb_alg *)p)->sadb_alg_id == alg_id)
return (struct sadb_alg *)p;
tlen -= sizeof(struct sadb_alg);
p += sizeof(struct sadb_alg);
}
__ipsec_errcode = EIPSEC_NOT_SUPPORTED;
return NULL;
}
static int
setsupportedmap(sup)
struct sadb_supported *sup;
{
struct sadb_supported **ipsup;
switch (sup->sadb_supported_exttype) {
case SADB_EXT_SUPPORTED_AUTH:
ipsup = &ipsec_supported[findsupportedmap(SADB_SATYPE_AH)];
break;
case SADB_EXT_SUPPORTED_ENCRYPT:
ipsup = &ipsec_supported[findsupportedmap(SADB_SATYPE_ESP)];
break;
default:
__ipsec_errcode = EIPSEC_INVAL_SATYPE;
return -1;
}
if (*ipsup)
free(*ipsup);
*ipsup = malloc(sup->sadb_supported_len);
if (!*ipsup) {
__ipsec_set_strerror(strerror(errno));
return -1;
}
memcpy(*ipsup, sup, sup->sadb_supported_len);
return 0;
}
/*
* check key length against algorithm specified.
* This function is called with SADB_EXT_SUPPORTED_{AUTH,ENCRYPT} as the
* augument, and only calls to ipsec_check_keylen2();
* keylen is the unit of bit.
* OUT:
* -1: invalid.
* 0: valid.
*/
int
ipsec_check_keylen(supported, alg_id, keylen)
u_int supported;
u_int alg_id;
u_int keylen;
{
int satype;
/* validity check */
switch (supported) {
case SADB_EXT_SUPPORTED_AUTH:
satype = SADB_SATYPE_AH;
break;
case SADB_EXT_SUPPORTED_ENCRYPT:
satype = SADB_SATYPE_ESP;
break;
default:
__ipsec_errcode = EIPSEC_INVAL_ARGUMENT;
return -1;
}
return ipsec_check_keylen2(satype, alg_id, keylen);
}
/*
* check key length against algorithm specified.
* satype is one of satype defined at pfkeyv2.h.
* keylen is the unit of bit.
* OUT:
* -1: invalid.
* 0: valid.
*/
int
ipsec_check_keylen2(satype, alg_id, keylen)
u_int satype;
u_int alg_id;
u_int keylen;
{
struct sadb_alg *alg;
alg = findsupportedalg(satype, alg_id);
if (!alg)
return -1;
if (keylen < alg->sadb_alg_minbits || keylen > alg->sadb_alg_maxbits) {
__ipsec_errcode = EIPSEC_INVAL_KEYLEN;
return -1;
}
__ipsec_errcode = EIPSEC_NO_ERROR;
return 0;
}
/*
* get max/min key length against algorithm specified.
* satype is one of satype defined at pfkeyv2.h.
* keylen is the unit of bit.
* OUT:
* -1: invalid.
* 0: valid.
*/
int
ipsec_get_keylen(supported, alg_id, alg0)
u_int supported, alg_id;
struct sadb_alg *alg0;
{
struct sadb_alg *alg;
u_int satype;
/* validity check */
if (!alg0) {
__ipsec_errcode = EIPSEC_INVAL_ARGUMENT;
return -1;
}
switch (supported) {
case SADB_EXT_SUPPORTED_AUTH:
satype = SADB_SATYPE_AH;
break;
case SADB_EXT_SUPPORTED_ENCRYPT:
satype = SADB_SATYPE_ESP;
break;
default:
__ipsec_errcode = EIPSEC_INVAL_ARGUMENT;
return -1;
}
alg = findsupportedalg(satype, alg_id);
if (!alg)
return -1;
memcpy(alg0, alg, sizeof(*alg0));
__ipsec_errcode = EIPSEC_NO_ERROR;
return 0;
}
/*
* set the rate for SOFT lifetime against HARD one.
* If rate is more than 100 or equal to zero, then set to 100.
*/
static u_int soft_lifetime_allocations_rate = PFKEY_SOFT_LIFETIME_RATE;
static u_int soft_lifetime_bytes_rate = PFKEY_SOFT_LIFETIME_RATE;
static u_int soft_lifetime_addtime_rate = PFKEY_SOFT_LIFETIME_RATE;
static u_int soft_lifetime_usetime_rate = PFKEY_SOFT_LIFETIME_RATE;
u_int
pfkey_set_softrate(type, rate)
u_int type, rate;
{
__ipsec_errcode = EIPSEC_NO_ERROR;
if (rate > 100 || rate == 0)
rate = 100;
switch (type) {
case SADB_X_LIFETIME_ALLOCATIONS:
soft_lifetime_allocations_rate = rate;
return 0;
case SADB_X_LIFETIME_BYTES:
soft_lifetime_bytes_rate = rate;
return 0;
case SADB_X_LIFETIME_ADDTIME:
soft_lifetime_addtime_rate = rate;
return 0;
case SADB_X_LIFETIME_USETIME:
soft_lifetime_usetime_rate = rate;
return 0;
}
__ipsec_errcode = EIPSEC_INVAL_ARGUMENT;
return 1;
}
/*
* get current rate for SOFT lifetime against HARD one.
* ATTENTION: ~0 is returned if invalid type was passed.
*/
u_int
pfkey_get_softrate(type)
u_int type;
{
switch (type) {
case SADB_X_LIFETIME_ALLOCATIONS:
return soft_lifetime_allocations_rate;
case SADB_X_LIFETIME_BYTES:
return soft_lifetime_bytes_rate;
case SADB_X_LIFETIME_ADDTIME:
return soft_lifetime_addtime_rate;
case SADB_X_LIFETIME_USETIME:
return soft_lifetime_usetime_rate;
}
return ~0;
}
/*
* sending SADB_GETSPI message to the kernel.
* OUT:
* positive: success and return length sent.
* -1 : error occured, and set errno.
*/
int
pfkey_send_getspi(so, satype, mode, src, dst, min, max, reqid, seq)
int so;
u_int satype, mode;
struct sockaddr *src, *dst;
u_int32_t min, max, reqid, seq;
{
struct sadb_msg *newmsg;
caddr_t ep;
int len;
int need_spirange = 0;
caddr_t p;
int plen;
/* validity check */
if (src == NULL || dst == NULL) {
__ipsec_errcode = EIPSEC_INVAL_ARGUMENT;
return -1;
}
if (src->sa_family != dst->sa_family) {
__ipsec_errcode = EIPSEC_FAMILY_MISMATCH;
return -1;
}
if (min > max || (min > 0 && min <= 255)) {
__ipsec_errcode = EIPSEC_INVAL_SPI;
return -1;
}
switch (src->sa_family) {
case AF_INET:
plen = sizeof(struct in_addr) << 3;
break;
case AF_INET6:
plen = sizeof(struct in6_addr) << 3;
break;
default:
__ipsec_errcode = EIPSEC_INVAL_FAMILY;
return -1;
}
/* create new sadb_msg to send. */
len = sizeof(struct sadb_msg)
+ sizeof(struct sadb_x_sa2)
+ sizeof(struct sadb_address)
+ PFKEY_ALIGN8(src->sa_len)
+ sizeof(struct sadb_address)
+ PFKEY_ALIGN8(dst->sa_len);
if (min > 255 && max < ~0) {
need_spirange++;
len += sizeof(struct sadb_spirange);
}
if ((newmsg = CALLOC(len, struct sadb_msg *)) == NULL) {
__ipsec_set_strerror(strerror(errno));
return -1;
}
ep = ((caddr_t)newmsg) + len;
p = pfkey_setsadbmsg((caddr_t)newmsg, ep, SADB_GETSPI,
len, satype, seq, getpid());
if (!p) {
free(newmsg);
return -1;
}
p = pfkey_setsadbxsa2(p, ep, mode, reqid);
if (!p) {
free(newmsg);
return -1;
}
/* set sadb_address for source */
p = pfkey_setsadbaddr(p, ep, SADB_EXT_ADDRESS_SRC, src, plen,
IPSEC_ULPROTO_ANY);
if (!p) {
free(newmsg);
return -1;
}
/* set sadb_address for destination */
p = pfkey_setsadbaddr(p, ep, SADB_EXT_ADDRESS_DST, dst, plen,
IPSEC_ULPROTO_ANY);
if (!p) {
free(newmsg);
return -1;
}
/* proccessing spi range */
if (need_spirange) {
struct sadb_spirange spirange;
if (p + sizeof(spirange) > ep) {
free(newmsg);
return -1;
}
memset(&spirange, 0, sizeof(spirange));
spirange.sadb_spirange_len = PFKEY_UNIT64(sizeof(spirange));
spirange.sadb_spirange_exttype = SADB_EXT_SPIRANGE;
spirange.sadb_spirange_min = min;
spirange.sadb_spirange_max = max;
memcpy(p, &spirange, sizeof(spirange));
p += sizeof(spirange);
}
if (p != ep) {
free(newmsg);
return -1;
}
/* send message */
len = pfkey_send(so, newmsg, len);
free(newmsg);
if (len < 0)
return -1;
__ipsec_errcode = EIPSEC_NO_ERROR;
return len;
}
/*
* sending SADB_UPDATE message to the kernel.
* The length of key material is a_keylen + e_keylen.
* OUT:
* positive: success and return length sent.
* -1 : error occured, and set errno.
*/
int
pfkey_send_update(so, satype, mode, src, dst, spi, reqid, wsize,
keymat, e_type, e_keylen, a_type, a_keylen, flags,
l_alloc, l_bytes, l_addtime, l_usetime, seq)
int so;
u_int satype, mode, wsize;
struct sockaddr *src, *dst;
u_int32_t spi, reqid;
caddr_t keymat;
u_int e_type, e_keylen, a_type, a_keylen, flags;
u_int32_t l_alloc;
u_int64_t l_bytes, l_addtime, l_usetime;
u_int32_t seq;
{
int len;
if ((len = pfkey_send_x1(so, SADB_UPDATE, satype, mode, src, dst, spi,
reqid, wsize,
keymat, e_type, e_keylen, a_type, a_keylen, flags,
l_alloc, l_bytes, l_addtime, l_usetime, seq)) < 0)
return -1;
return len;
}
/*
* sending SADB_ADD message to the kernel.
* The length of key material is a_keylen + e_keylen.
* OUT:
* positive: success and return length sent.
* -1 : error occured, and set errno.
*/
int
pfkey_send_add(so, satype, mode, src, dst, spi, reqid, wsize,
keymat, e_type, e_keylen, a_type, a_keylen, flags,
l_alloc, l_bytes, l_addtime, l_usetime, seq)
int so;
u_int satype, mode, wsize;
struct sockaddr *src, *dst;
u_int32_t spi, reqid;
caddr_t keymat;
u_int e_type, e_keylen, a_type, a_keylen, flags;
u_int32_t l_alloc;
u_int64_t l_bytes, l_addtime, l_usetime;
u_int32_t seq;
{
int len;
if ((len = pfkey_send_x1(so, SADB_ADD, satype, mode, src, dst, spi,
reqid, wsize,
keymat, e_type, e_keylen, a_type, a_keylen, flags,
l_alloc, l_bytes, l_addtime, l_usetime, seq)) < 0)
return -1;
return len;
}
/*
* sending SADB_DELETE message to the kernel.
* OUT:
* positive: success and return length sent.
* -1 : error occured, and set errno.
*/
int
pfkey_send_delete(so, satype, mode, src, dst, spi)
int so;
u_int satype, mode;
struct sockaddr *src, *dst;
u_int32_t spi;
{
int len;
if ((len = pfkey_send_x2(so, SADB_DELETE, satype, mode, src, dst, spi)) < 0)
return -1;
return len;
}
/*
* sending SADB_DELETE without spi to the kernel. This is
* the "delete all" request (an extension also present in
* Solaris).
*
* OUT:
* positive: success and return length sent
* -1 : error occured, and set errno
*/
int
pfkey_send_delete_all(so, satype, mode, src, dst)
int so;
u_int satype, mode;
struct sockaddr *src, *dst;
{
struct sadb_msg *newmsg;
int len;
caddr_t p;
int plen;
caddr_t ep;
/* validity check */
if (src == NULL || dst == NULL) {
__ipsec_errcode = EIPSEC_INVAL_ARGUMENT;
return -1;
}
if (src->sa_family != dst->sa_family) {
__ipsec_errcode = EIPSEC_FAMILY_MISMATCH;
return -1;
}
switch (src->sa_family) {
case AF_INET:
plen = sizeof(struct in_addr) << 3;
break;
case AF_INET6:
plen = sizeof(struct in6_addr) << 3;
break;
default:
__ipsec_errcode = EIPSEC_INVAL_FAMILY;
return -1;
}
/* create new sadb_msg to reply. */
len = sizeof(struct sadb_msg)
+ sizeof(struct sadb_address)
+ PFKEY_ALIGN8(src->sa_len)
+ sizeof(struct sadb_address)
+ PFKEY_ALIGN8(dst->sa_len);
if ((newmsg = CALLOC(len, struct sadb_msg *)) == NULL) {
__ipsec_set_strerror(strerror(errno));
return -1;
}
ep = ((caddr_t)newmsg) + len;
p = pfkey_setsadbmsg((caddr_t)newmsg, ep, SADB_DELETE, len, satype, 0,
getpid());
if (!p) {
free(newmsg);
return -1;
}
p = pfkey_setsadbaddr(p, ep, SADB_EXT_ADDRESS_SRC, src, plen,
IPSEC_ULPROTO_ANY);
if (!p) {
free(newmsg);
return -1;
}
p = pfkey_setsadbaddr(p, ep, SADB_EXT_ADDRESS_DST, dst, plen,
IPSEC_ULPROTO_ANY);
if (!p || p != ep) {
free(newmsg);
return -1;
}
/* send message */
len = pfkey_send(so, newmsg, len);
free(newmsg);
if (len < 0)
return -1;
__ipsec_errcode = EIPSEC_NO_ERROR;
return len;
}
/*
* sending SADB_GET message to the kernel.
* OUT:
* positive: success and return length sent.
* -1 : error occured, and set errno.
*/
int
pfkey_send_get(so, satype, mode, src, dst, spi)
int so;
u_int satype, mode;
struct sockaddr *src, *dst;
u_int32_t spi;
{
int len;
if ((len = pfkey_send_x2(so, SADB_GET, satype, mode, src, dst, spi)) < 0)
return -1;
return len;
}
/*
* sending SADB_REGISTER message to the kernel.
* OUT:
* positive: success and return length sent.
* -1 : error occured, and set errno.
*/
int
pfkey_send_register(so, satype)
int so;
u_int satype;
{
int len, algno;
if (satype == SADB_SATYPE_UNSPEC) {
for (algno = 0;
algno < sizeof(supported_map)/sizeof(supported_map[0]);
algno++) {
if (ipsec_supported[algno]) {
free(ipsec_supported[algno]);
ipsec_supported[algno] = NULL;
}
}
} else {
algno = findsupportedmap(satype);
if (algno == -1) {
__ipsec_errcode = EIPSEC_INVAL_ARGUMENT;
return -1;
}
if (ipsec_supported[algno]) {
free(ipsec_supported[algno]);
ipsec_supported[algno] = NULL;
}
}
if ((len = pfkey_send_x3(so, SADB_REGISTER, satype)) < 0)
return -1;
return len;
}
/*
* receiving SADB_REGISTER message from the kernel, and copy buffer for
* sadb_supported returned into ipsec_supported.
* OUT:
* 0: success and return length sent.
* -1: error occured, and set errno.
*/
int
pfkey_recv_register(so)
int so;
{
pid_t pid = getpid();
struct sadb_msg *newmsg;
int error = -1;
/* receive message */
for (;;) {
if ((newmsg = pfkey_recv(so)) == NULL)
return -1;
if (newmsg->sadb_msg_type == SADB_REGISTER &&
newmsg->sadb_msg_pid == pid)
break;
free(newmsg);
}
/* check and fix */
newmsg->sadb_msg_len = PFKEY_UNUNIT64(newmsg->sadb_msg_len);
error = pfkey_set_supported(newmsg, newmsg->sadb_msg_len);
free(newmsg);
if (error == 0)
__ipsec_errcode = EIPSEC_NO_ERROR;
return error;
}
/*
* receiving SADB_REGISTER message from the kernel, and copy buffer for
* sadb_supported returned into ipsec_supported.
* NOTE: sadb_msg_len must be host order.
* IN:
* tlen: msg length, it's to makeing sure.
* OUT:
* 0: success and return length sent.
* -1: error occured, and set errno.
*/
int
pfkey_set_supported(msg, tlen)
struct sadb_msg *msg;
int tlen;
{
struct sadb_supported *sup;
caddr_t p;
caddr_t ep;
/* validity */
if (msg->sadb_msg_len != tlen) {
__ipsec_errcode = EIPSEC_INVAL_ARGUMENT;
return -1;
}
p = (caddr_t)msg;
ep = p + tlen;
p += sizeof(struct sadb_msg);
while (p < ep) {
sup = (struct sadb_supported *)p;
if (ep < p + sizeof(*sup) ||
PFKEY_EXTLEN(sup) < sizeof(*sup) ||
ep < p + sup->sadb_supported_len) {
/* invalid format */
break;
}
switch (sup->sadb_supported_exttype) {
case SADB_EXT_SUPPORTED_AUTH:
case SADB_EXT_SUPPORTED_ENCRYPT:
break;
default:
__ipsec_errcode = EIPSEC_INVAL_SATYPE;
return -1;
}
/* fixed length */
sup->sadb_supported_len = PFKEY_EXTLEN(sup);
/* set supported map */
if (setsupportedmap(sup) != 0)
return -1;
p += sup->sadb_supported_len;
}
if (p != ep) {
__ipsec_errcode = EIPSEC_INVAL_SATYPE;
return -1;
}
__ipsec_errcode = EIPSEC_NO_ERROR;
return 0;
}
/*
* sending SADB_FLUSH message to the kernel.
* OUT:
* positive: success and return length sent.
* -1 : error occured, and set errno.
*/
int
pfkey_send_flush(so, satype)
int so;
u_int satype;
{
int len;
if ((len = pfkey_send_x3(so, SADB_FLUSH, satype)) < 0)
return -1;
return len;
}
/*
* sending SADB_DUMP message to the kernel.
* OUT:
* positive: success and return length sent.
* -1 : error occured, and set errno.
*/
int
pfkey_send_dump(so, satype)
int so;
u_int satype;
{
int len;
if ((len = pfkey_send_x3(so, SADB_DUMP, satype)) < 0)
return -1;
return len;
}
/*
* sending SADB_X_PROMISC message to the kernel.
* NOTE that this function handles promisc mode toggle only.
* IN:
* flag: set promisc off if zero, set promisc on if non-zero.
* OUT:
* positive: success and return length sent.
* -1 : error occured, and set errno.
* 0 : error occured, and set errno.
* others: a pointer to new allocated buffer in which supported
* algorithms is.
*/
int
pfkey_send_promisc_toggle(so, flag)
int so;
int flag;
{
int len;
if ((len = pfkey_send_x3(so, SADB_X_PROMISC, (flag ? 1 : 0))) < 0)
return -1;
return len;
}
/*
* sending SADB_X_SPDADD message to the kernel.
* OUT:
* positive: success and return length sent.
* -1 : error occured, and set errno.
*/
int
pfkey_send_spdadd(so, src, prefs, dst, prefd, proto, policy, policylen, seq)
int so;
struct sockaddr *src, *dst;
u_int prefs, prefd, proto;
caddr_t policy;
int policylen;
u_int32_t seq;
{
int len;
if ((len = pfkey_send_x4(so, SADB_X_SPDADD,
src, prefs, dst, prefd, proto,
0, 0,
policy, policylen, seq)) < 0)
return -1;
return len;
}
/*
* sending SADB_X_SPDADD message to the kernel.
* OUT:
* positive: success and return length sent.
* -1 : error occured, and set errno.
*/
int
pfkey_send_spdadd2(so, src, prefs, dst, prefd, proto, ltime, vtime,
policy, policylen, seq)
int so;
struct sockaddr *src, *dst;
u_int prefs, prefd, proto;
u_int64_t ltime, vtime;
caddr_t policy;
int policylen;
u_int32_t seq;
{
int len;
if ((len = pfkey_send_x4(so, SADB_X_SPDADD,
src, prefs, dst, prefd, proto,
ltime, vtime,
policy, policylen, seq)) < 0)
return -1;
return len;
}
/*
* sending SADB_X_SPDUPDATE message to the kernel.
* OUT:
* positive: success and return length sent.
* -1 : error occured, and set errno.
*/
int
pfkey_send_spdupdate(so, src, prefs, dst, prefd, proto, policy, policylen, seq)
int so;
struct sockaddr *src, *dst;
u_int prefs, prefd, proto;
caddr_t policy;
int policylen;
u_int32_t seq;
{
int len;
if ((len = pfkey_send_x4(so, SADB_X_SPDUPDATE,
src, prefs, dst, prefd, proto,
0, 0,
policy, policylen, seq)) < 0)
return -1;
return len;
}
/*
* sending SADB_X_SPDUPDATE message to the kernel.
* OUT:
* positive: success and return length sent.
* -1 : error occured, and set errno.
*/
int
pfkey_send_spdupdate2(so, src, prefs, dst, prefd, proto, ltime, vtime,
policy, policylen, seq)
int so;
struct sockaddr *src, *dst;
u_int prefs, prefd, proto;
u_int64_t ltime, vtime;
caddr_t policy;
int policylen;
u_int32_t seq;
{
int len;
if ((len = pfkey_send_x4(so, SADB_X_SPDUPDATE,
src, prefs, dst, prefd, proto,
ltime, vtime,
policy, policylen, seq)) < 0)
return -1;
return len;
}
/*
* sending SADB_X_SPDDELETE message to the kernel.
* OUT:
* positive: success and return length sent.
* -1 : error occured, and set errno.
*/
int
pfkey_send_spddelete(so, src, prefs, dst, prefd, proto, policy, policylen, seq)
int so;
struct sockaddr *src, *dst;
u_int prefs, prefd, proto;
caddr_t policy;
int policylen;
u_int32_t seq;
{
int len;
if (policylen != sizeof(struct sadb_x_policy)) {
__ipsec_errcode = EIPSEC_INVAL_ARGUMENT;
return -1;
}
if ((len = pfkey_send_x4(so, SADB_X_SPDDELETE,
src, prefs, dst, prefd, proto,
0, 0,
policy, policylen, seq)) < 0)
return -1;