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merging kernel_klips plugin back into trunk

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This commit is contained in:
Tobias Brunner
2008-11-11 09:22:00 +00:00
parent c117f24e61
commit ea625fabf9
30 changed files with 3774 additions and 262 deletions
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src/charon/plugins/kernel_klips/Makefile.am
+10
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@@ -0,0 +1,10 @@
INCLUDES = -I${linuxdir} -I$(top_srcdir)/src/libstrongswan -I$(top_srcdir)/src/charon
AM_CFLAGS = -rdynamic
plugin_LTLIBRARIES = libstrongswan-kernel-klips.la
libstrongswan_kernel_klips_la_SOURCES = kernel_klips_plugin.h kernel_klips_plugin.c \
kernel_klips_ipsec.h kernel_klips_ipsec.c pfkeyv2.h
libstrongswan_kernel_klips_la_LDFLAGS = -module
src/charon/plugins/kernel_klips/kernel_klips_ipsec.c
+2657
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src/charon/plugins/kernel_klips/kernel_klips_ipsec.h
+48
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@@ -0,0 +1,48 @@
/*
* Copyright (C) 2008 Tobias Brunner
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* $Id$
*/
/**
* @defgroup kernel_klips_ipsec_i kernel_klips_ipsec
* @{ @ingroup kernel_klips
*/
#ifndef KERNEL_KLIPS_IPSEC_H_
#define KERNEL_KLIPS_IPSEC_H_
#include <kernel/kernel_ipsec.h>
typedef struct kernel_klips_ipsec_t kernel_klips_ipsec_t;
/**
* Implementation of the kernel ipsec interface using PF_KEY.
*/
struct kernel_klips_ipsec_t {
/**
* Implements kernel_ipsec_t interface
*/
kernel_ipsec_t interface;
};
/**
* Create a PF_KEY kernel ipsec interface instance.
*
* @return kernel_klips_ipsec_t instance
*/
kernel_klips_ipsec_t *kernel_klips_ipsec_create();
#endif /* KERNEL_KLIPS_IPSEC_H_ @} */
src/charon/plugins/kernel_klips/kernel_klips_plugin.c
+58
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@@ -0,0 +1,58 @@
/*
* Copyright (C) 2008 Tobias Brunner
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* $Id$
*/
#include "kernel_klips_plugin.h"
#include "kernel_klips_ipsec.h"
#include <daemon.h>
typedef struct private_kernel_klips_plugin_t private_kernel_klips_plugin_t;
/**
* private data of kernel PF_KEY plugin
*/
struct private_kernel_klips_plugin_t {
/**
* implements plugin interface
*/
kernel_klips_plugin_t public;
};
/**
* Implementation of plugin_t.destroy
*/
static void destroy(private_kernel_klips_plugin_t *this)
{
charon->kernel_interface->remove_ipsec_interface(charon->kernel_interface, (kernel_ipsec_constructor_t)kernel_klips_ipsec_create);
free(this);
}
/*
* see header file
*/
plugin_t *plugin_create()
{
private_kernel_klips_plugin_t *this = malloc_thing(private_kernel_klips_plugin_t);
this->public.plugin.destroy = (void(*)(plugin_t*))destroy;
charon->kernel_interface->add_ipsec_interface(charon->kernel_interface, (kernel_ipsec_constructor_t)kernel_klips_ipsec_create);
return &this->public.plugin;
}
src/charon/plugins/kernel_klips/kernel_klips_plugin.h
+49
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@@ -0,0 +1,49 @@
/*
* Copyright (C) 2008 Tobias Brunner
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* $Id$
*/
/**
* @defgroup kernel_klips kernel_klips
* @ingroup cplugins
*
* @defgroup kernel_klips_plugin kernel_klips_plugin
* @{ @ingroup kernel_klips
*/
#ifndef KERNEL_KLIPS_PLUGIN_H_
#define KERNEL_KLIPS_PLUGIN_H_
#include <plugins/plugin.h>
typedef struct kernel_klips_plugin_t kernel_klips_plugin_t;
/**
* PF_KEY kernel interface plugin
*/
struct kernel_klips_plugin_t {
/**
* implements plugin interface
*/
plugin_t plugin;
};
/**
* Create a kernel_klips_plugin instance.
*/
plugin_t *plugin_create();
#endif /* KERNEL_KLIPS_PLUGIN_H_ @} */
src/charon/plugins/kernel_klips/pfkeyv2.h
+322
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@@ -0,0 +1,322 @@
/*
RFC 2367 PF_KEY Key Management API July 1998
Appendix D: Sample Header File
This file defines structures and symbols for the PF_KEY Version 2
key management interface. It was written at the U.S. Naval Research
Laboratory. This file is in the public domain. The authors ask that
you leave this credit intact on any copies of this file.
*/
#ifndef __PFKEY_V2_H
#define __PFKEY_V2_H 1
#define PF_KEY_V2 2
#define PFKEYV2_REVISION 199806L
#define SADB_RESERVED 0
#define SADB_GETSPI 1
#define SADB_UPDATE 2
#define SADB_ADD 3
#define SADB_DELETE 4
#define SADB_GET 5
#define SADB_ACQUIRE 6
#define SADB_REGISTER 7
#define SADB_EXPIRE 8
#define SADB_FLUSH 9
#define SADB_DUMP 10
#define SADB_X_PROMISC 11
#define SADB_X_PCHANGE 12
#define SADB_X_GRPSA 13
#define SADB_X_ADDFLOW 14
#define SADB_X_DELFLOW 15
#define SADB_X_DEBUG 16
#define SADB_X_NAT_T_NEW_MAPPING 17
#define SADB_MAX 17
struct sadb_msg {
uint8_t sadb_msg_version;
uint8_t sadb_msg_type;
uint8_t sadb_msg_errno;
uint8_t sadb_msg_satype;
uint16_t sadb_msg_len;
uint16_t sadb_msg_reserved;
uint32_t sadb_msg_seq;
uint32_t sadb_msg_pid;
};
struct sadb_ext {
uint16_t sadb_ext_len;
uint16_t sadb_ext_type;
};
struct sadb_sa {
uint16_t sadb_sa_len;
uint16_t sadb_sa_exttype;
uint32_t sadb_sa_spi;
uint8_t sadb_sa_replay;
uint8_t sadb_sa_state;
uint8_t sadb_sa_auth;
uint8_t sadb_sa_encrypt;
uint32_t sadb_sa_flags;
};
struct sadb_lifetime {
uint16_t sadb_lifetime_len;
uint16_t sadb_lifetime_exttype;
uint32_t sadb_lifetime_allocations;
uint64_t sadb_lifetime_bytes;
uint64_t sadb_lifetime_addtime;
uint64_t sadb_lifetime_usetime;
uint32_t sadb_x_lifetime_packets;
uint32_t sadb_x_lifetime_reserved;
};
struct sadb_address {
uint16_t sadb_address_len;
uint16_t sadb_address_exttype;
uint8_t sadb_address_proto;
uint8_t sadb_address_prefixlen;
uint16_t sadb_address_reserved;
};
struct sadb_key {
uint16_t sadb_key_len;
uint16_t sadb_key_exttype;
uint16_t sadb_key_bits;
uint16_t sadb_key_reserved;
};
struct sadb_ident {
uint16_t sadb_ident_len;
uint16_t sadb_ident_exttype;
uint16_t sadb_ident_type;
uint16_t sadb_ident_reserved;
uint64_t sadb_ident_id;
};
struct sadb_sens {
uint16_t sadb_sens_len;
uint16_t sadb_sens_exttype;
uint32_t sadb_sens_dpd;
uint8_t sadb_sens_sens_level;
uint8_t sadb_sens_sens_len;
uint8_t sadb_sens_integ_level;
uint8_t sadb_sens_integ_len;
uint32_t sadb_sens_reserved;
};
struct sadb_prop {
uint16_t sadb_prop_len;
uint16_t sadb_prop_exttype;
uint8_t sadb_prop_replay;
uint8_t sadb_prop_reserved[3];
};
struct sadb_comb {
uint8_t sadb_comb_auth;
uint8_t sadb_comb_encrypt;
uint16_t sadb_comb_flags;
uint16_t sadb_comb_auth_minbits;
uint16_t sadb_comb_auth_maxbits;
uint16_t sadb_comb_encrypt_minbits;
uint16_t sadb_comb_encrypt_maxbits;
uint32_t sadb_comb_reserved;
uint32_t sadb_comb_soft_allocations;
uint32_t sadb_comb_hard_allocations;
uint64_t sadb_comb_soft_bytes;
uint64_t sadb_comb_hard_bytes;
uint64_t sadb_comb_soft_addtime;
uint64_t sadb_comb_hard_addtime;
uint64_t sadb_comb_soft_usetime;
uint64_t sadb_comb_hard_usetime;
uint32_t sadb_x_comb_soft_packets;
uint32_t sadb_x_comb_hard_packets;
};
struct sadb_supported {
uint16_t sadb_supported_len;
uint16_t sadb_supported_exttype;
uint32_t sadb_supported_reserved;
};
struct sadb_alg {
uint8_t sadb_alg_id;
uint8_t sadb_alg_ivlen;
uint16_t sadb_alg_minbits;
uint16_t sadb_alg_maxbits;
uint16_t sadb_alg_reserved;
};
struct sadb_spirange {
uint16_t sadb_spirange_len;
uint16_t sadb_spirange_exttype;
uint32_t sadb_spirange_min;
uint32_t sadb_spirange_max;
uint32_t sadb_spirange_reserved;
};
struct sadb_x_kmprivate {
uint16_t sadb_x_kmprivate_len;
uint16_t sadb_x_kmprivate_exttype;
uint32_t sadb_x_kmprivate_reserved;
};
struct sadb_x_satype {
uint16_t sadb_x_satype_len;
uint16_t sadb_x_satype_exttype;
uint8_t sadb_x_satype_satype;
uint8_t sadb_x_satype_reserved[3];
};
struct sadb_x_debug {
uint16_t sadb_x_debug_len;
uint16_t sadb_x_debug_exttype;
uint32_t sadb_x_debug_tunnel;
uint32_t sadb_x_debug_netlink;
uint32_t sadb_x_debug_xform;
uint32_t sadb_x_debug_eroute;
uint32_t sadb_x_debug_spi;
uint32_t sadb_x_debug_radij;
uint32_t sadb_x_debug_esp;
uint32_t sadb_x_debug_ah;
uint32_t sadb_x_debug_rcv;
uint32_t sadb_x_debug_pfkey;
uint32_t sadb_x_debug_ipcomp;
uint32_t sadb_x_debug_verbose;
uint8_t sadb_x_debug_reserved[4];
};
struct sadb_x_nat_t_type {
uint16_t sadb_x_nat_t_type_len;
uint16_t sadb_x_nat_t_type_exttype;
uint8_t sadb_x_nat_t_type_type;
uint8_t sadb_x_nat_t_type_reserved[3];
};
struct sadb_x_nat_t_port {
uint16_t sadb_x_nat_t_port_len;
uint16_t sadb_x_nat_t_port_exttype;
uint16_t sadb_x_nat_t_port_port;
uint16_t sadb_x_nat_t_port_reserved;
};
/*
* A protocol structure for passing through the transport level
* protocol. It contains more fields than are actually used/needed
* but it is this way to be compatible with the structure used in
* OpenBSD (http://www.openbsd.org/cgi-bin/cvsweb/src/sys/net/pfkeyv2.h)
*/
struct sadb_protocol {
uint16_t sadb_protocol_len;
uint16_t sadb_protocol_exttype;
uint8_t sadb_protocol_proto;
uint8_t sadb_protocol_direction;
uint8_t sadb_protocol_flags;
uint8_t sadb_protocol_reserved2;
};
#define SADB_EXT_RESERVED 0
#define SADB_EXT_SA 1
#define SADB_EXT_LIFETIME_CURRENT 2
#define SADB_EXT_LIFETIME_HARD 3
#define SADB_EXT_LIFETIME_SOFT 4
#define SADB_EXT_ADDRESS_SRC 5
#define SADB_EXT_ADDRESS_DST 6
#define SADB_EXT_ADDRESS_PROXY 7
#define SADB_EXT_KEY_AUTH 8
#define SADB_EXT_KEY_ENCRYPT 9
#define SADB_EXT_IDENTITY_SRC 10
#define SADB_EXT_IDENTITY_DST 11
#define SADB_EXT_SENSITIVITY 12
#define SADB_EXT_PROPOSAL 13
#define SADB_EXT_SUPPORTED_AUTH 14
#define SADB_EXT_SUPPORTED_ENCRYPT 15
#define SADB_EXT_SPIRANGE 16
#define SADB_X_EXT_KMPRIVATE 17
#define SADB_X_EXT_SATYPE2 18
#define SADB_X_EXT_SA2 19
#define SADB_X_EXT_ADDRESS_DST2 20
#define SADB_X_EXT_ADDRESS_SRC_FLOW 21
#define SADB_X_EXT_ADDRESS_DST_FLOW 22
#define SADB_X_EXT_ADDRESS_SRC_MASK 23
#define SADB_X_EXT_ADDRESS_DST_MASK 24
#define SADB_X_EXT_DEBUG 25
#define SADB_X_EXT_PROTOCOL 26
#define SADB_X_EXT_NAT_T_TYPE 27
#define SADB_X_EXT_NAT_T_SPORT 28
#define SADB_X_EXT_NAT_T_DPORT 29
#define SADB_X_EXT_NAT_T_OA 30
#define SADB_EXT_MAX 30
/* SADB_X_DELFLOW required over and above SADB_X_SAFLAGS_CLEARFLOW */
#define SADB_X_EXT_ADDRESS_DELFLOW \
( (1<<SADB_X_EXT_ADDRESS_SRC_FLOW) \
| (1<<SADB_X_EXT_ADDRESS_DST_FLOW) \
| (1<<SADB_X_EXT_ADDRESS_SRC_MASK) \
| (1<<SADB_X_EXT_ADDRESS_DST_MASK))
#define SADB_SATYPE_UNSPEC 0
#define SADB_SATYPE_AH 2
#define SADB_SATYPE_ESP 3
#define SADB_SATYPE_RSVP 5
#define SADB_SATYPE_OSPFV2 6
#define SADB_SATYPE_RIPV2 7
#define SADB_SATYPE_MIP 8
#define SADB_X_SATYPE_IPIP 9
#define SADB_X_SATYPE_COMP 10
#define SADB_X_SATYPE_INT 11
#define SADB_SATYPE_MAX 11
#define SADB_SASTATE_LARVAL 0
#define SADB_SASTATE_MATURE 1
#define SADB_SASTATE_DYING 2
#define SADB_SASTATE_DEAD 3
#define SADB_SASTATE_MAX 3
#define SADB_SAFLAGS_PFS 1
#define SADB_X_SAFLAGS_REPLACEFLOW 2
#define SADB_X_SAFLAGS_CLEARFLOW 4
#define SADB_X_SAFLAGS_INFLOW 8
#define SADB_AALG_NONE 0
#define SADB_AALG_MD5HMAC 2
#define SADB_AALG_SHA1HMAC 3
#define SADB_AALG_SHA256_HMAC 5
#define SADB_AALG_SHA384_HMAC 6
#define SADB_AALG_SHA512_HMAC 7
#define SADB_AALG_RIPEMD160HMAC 8
#define SADB_AALG_MAX 15
#define SADB_EALG_NONE 0
#define SADB_EALG_DESCBC 2
#define SADB_EALG_3DESCBC 3
#define SADB_EALG_BFCBC 7
#define SADB_EALG_NULL 11
#define SADB_EALG_AESCBC 12
#define SADB_EALG_MAX 255
#define SADB_X_CALG_NONE 0
#define SADB_X_CALG_OUI 1
#define SADB_X_CALG_DEFLATE 2
#define SADB_X_CALG_LZS 3
#define SADB_X_CALG_V42BIS 4
#define SADB_X_CALG_MAX 4
#define SADB_X_TALG_NONE 0
#define SADB_X_TALG_IPv4_in_IPv4 1
#define SADB_X_TALG_IPv6_in_IPv4 2
#define SADB_X_TALG_IPv4_in_IPv6 3
#define SADB_X_TALG_IPv6_in_IPv6 4
#define SADB_X_TALG_MAX 4
#define SADB_IDENTTYPE_RESERVED 0
#define SADB_IDENTTYPE_PREFIX 1
#define SADB_IDENTTYPE_FQDN 2
#define SADB_IDENTTYPE_USERFQDN 3
#define SADB_X_IDENTTYPE_CONNECTION 4
#define SADB_IDENTTYPE_MAX 4
#define SADB_KEY_FLAGS_MAX 0
#endif /* __PFKEY_V2_H */
src/charon/plugins/kernel_netlink/kernel_netlink_ipsec.c
+121 -19
View File
@@ -23,11 +23,12 @@
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <stdint.h>
#include <linux/ipsec.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/xfrm.h>
#include <linux/udp.h>
#include <netinet/in.h>
#include <pthread.h>
#include <unistd.h>
#include <errno.h>
@@ -51,6 +52,11 @@
#define XFRM_STATE_AF_UNSPEC 32
#endif
/** from linux/in.h */
#ifndef IP_IPSEC_POLICY
#define IP_IPSEC_POLICY 16
#endif
/** default priority of installed policies */
#define PRIO_LOW 3000
#define PRIO_HIGH 2000
@@ -849,8 +855,8 @@ static status_t add_sa(private_kernel_netlink_ipsec_t *this,
u_int64_t expire_soft, u_int64_t expire_hard,
u_int16_t enc_alg, chunk_t enc_key,
u_int16_t int_alg, chunk_t int_key,
ipsec_mode_t mode, u_int16_t ipcomp, bool encap,
bool replace)
ipsec_mode_t mode, u_int16_t ipcomp, u_int16_t cpi,
bool encap, bool inbound)
{
unsigned char request[NETLINK_BUFFER_SIZE];
char *alg_name;
@@ -858,6 +864,17 @@ static status_t add_sa(private_kernel_netlink_ipsec_t *this,
struct xfrm_usersa_info *sa;
u_int16_t icv_size = 64;
/* if IPComp is used, we install an additional IPComp SA. if the cpi is 0
* we are in the recursive call below */
if (ipcomp != IPCOMP_NONE && cpi != 0)
{
this->public.interface.add_sa(&this->public.interface,
src, dst, htonl(ntohs(cpi)), IPPROTO_COMP, reqid, 0, 0,
ENCR_UNDEFINED, chunk_empty, AUTH_UNDEFINED, chunk_empty,
mode, ipcomp, 0, FALSE, inbound);
ipcomp = IPCOMP_NONE;
}
memset(&request, 0, sizeof(request));
DBG2(DBG_KNL, "adding SAD entry with SPI %.8x and reqid {%u}",
@@ -865,7 +882,7 @@ static status_t add_sa(private_kernel_netlink_ipsec_t *this,
hdr = (struct nlmsghdr*)request;
hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
hdr->nlmsg_type = replace ? XFRM_MSG_UPDSA : XFRM_MSG_NEWSA;
hdr->nlmsg_type = inbound ? XFRM_MSG_UPDSA : XFRM_MSG_NEWSA;
hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct xfrm_usersa_info));
sa = (struct xfrm_usersa_info*)NLMSG_DATA(hdr);
@@ -1149,9 +1166,10 @@ static status_t get_replay_state(private_kernel_netlink_ipsec_t *this,
* Implementation of kernel_interface_t.update_sa.
*/
static status_t update_sa(private_kernel_netlink_ipsec_t *this,
u_int32_t spi, protocol_id_t protocol,
u_int32_t spi, protocol_id_t protocol, u_int16_t cpi,
host_t *src, host_t *dst,
host_t *new_src, host_t *new_dst, bool encap)
host_t *new_src, host_t *new_dst,
bool encap, bool new_encap)
{
unsigned char request[NETLINK_BUFFER_SIZE], *pos;
struct nlmsghdr *hdr, *out = NULL;
@@ -1164,6 +1182,14 @@ static status_t update_sa(private_kernel_netlink_ipsec_t *this,
bool got_replay_state;
struct xfrm_replay_state replay;
/* if IPComp is used, we first update the IPComp SA */
if (cpi)
{
this->public.interface.update_sa(&this->public.interface,
htonl(ntohs(cpi)), IPPROTO_COMP, 0,
src, dst, new_src, new_dst, FALSE, FALSE);
}
memset(&request, 0, sizeof(request));
DBG2(DBG_KNL, "querying SAD entry with SPI %.8x for update", ntohl(spi));
@@ -1219,8 +1245,9 @@ static status_t update_sa(private_kernel_netlink_ipsec_t *this,
got_replay_state = (get_replay_state(
this, spi, protocol, dst, &replay) == SUCCESS);
/* delete the old SA */
if (this->public.interface.del_sa(&this->public.interface, dst, spi, protocol) != SUCCESS)
/* delete the old SA (without affecting the IPComp SA) */
if (this->public.interface.del_sa(&this->public.interface, dst, spi,
protocol, 0) != SUCCESS)
{
DBG1(DBG_KNL, "unable to delete old SAD entry with SPI %.8x", ntohl(spi));
free(out);
@@ -1320,12 +1347,19 @@ static status_t update_sa(private_kernel_netlink_ipsec_t *this,
* Implementation of kernel_interface_t.del_sa.
*/
static status_t del_sa(private_kernel_netlink_ipsec_t *this, host_t *dst,
u_int32_t spi, protocol_id_t protocol)
u_int32_t spi, protocol_id_t protocol, u_int16_t cpi)
{
unsigned char request[NETLINK_BUFFER_SIZE];
struct nlmsghdr *hdr;
struct xfrm_usersa_id *sa_id;
/* if IPComp was used, we first delete the additional IPComp SA */
if (cpi)
{
this->public.interface.del_sa(&this->public.interface, dst,
htonl(ntohs(cpi)), IPPROTO_COMP, 0);
}
memset(&request, 0, sizeof(request));
DBG2(DBG_KNL, "deleting SAD entry with SPI %.8x", ntohl(spi));
@@ -1357,9 +1391,10 @@ static status_t add_policy(private_kernel_netlink_ipsec_t *this,
host_t *src, host_t *dst,
traffic_selector_t *src_ts,
traffic_selector_t *dst_ts,
policy_dir_t direction, protocol_id_t protocol,
u_int32_t reqid, bool high_prio, ipsec_mode_t mode,
u_int16_t ipcomp)
policy_dir_t direction, u_int32_t spi,
protocol_id_t protocol, u_int32_t reqid,
ipsec_mode_t mode, u_int16_t ipcomp, u_int16_t cpi,
bool routed)
{
iterator_t *iterator;
policy_entry_t *current, *policy;
@@ -1413,7 +1448,7 @@ static status_t add_policy(private_kernel_netlink_ipsec_t *this,
policy_info->sel = policy->sel;
policy_info->dir = policy->direction;
/* calculate priority based on source selector size, small size = high prio */
policy_info->priority = high_prio ? PRIO_HIGH : PRIO_LOW;
policy_info->priority = routed ? PRIO_LOW : PRIO_HIGH;
policy_info->priority -= policy->sel.prefixlen_s * 10;
policy_info->priority -= policy->sel.proto ? 2 : 0;
policy_info->priority -= policy->sel.sport_mask ? 1 : 0;
@@ -1617,7 +1652,7 @@ static status_t query_policy(private_kernel_netlink_ipsec_t *this,
static status_t del_policy(private_kernel_netlink_ipsec_t *this,
traffic_selector_t *src_ts,
traffic_selector_t *dst_ts,
policy_dir_t direction)
policy_dir_t direction, bool unrouted)
{
policy_entry_t *current, policy, *to_delete = NULL;
route_entry_t *route;
@@ -1714,6 +1749,67 @@ static void destroy(private_kernel_netlink_ipsec_t *this)
free(this);
}
/**
* Add bypass policies for IKE on the sockets used by charon
*/
static bool add_bypass_policies()
{
int fd, family, port;
enumerator_t *sockets;
/* we open an AF_KEY socket to autoload the af_key module. Otherwise
* setsockopt(IPSEC_POLICY) won't work. */
fd = socket(AF_KEY, SOCK_RAW, PF_KEY_V2);
if (fd == 0)
{
DBG1(DBG_KNL, "could not open AF_KEY socket");
return FALSE;
}
close(fd);
sockets = charon->socket->create_enumerator(charon->socket);
while (sockets->enumerate(sockets, &fd, &family, &port))
{
struct sadb_x_policy policy;
u_int sol, ipsec_policy;
switch (family)
{
case AF_INET:
sol = SOL_IP;
ipsec_policy = IP_IPSEC_POLICY;
break;
case AF_INET6:
{
sol = SOL_IPV6;
ipsec_policy = IPV6_IPSEC_POLICY;
break;
}
}
memset(&policy, 0, sizeof(policy));
policy.sadb_x_policy_len = sizeof(policy) / sizeof(u_int64_t);
policy.sadb_x_policy_exttype = SADB_X_EXT_POLICY;
policy.sadb_x_policy_type = IPSEC_POLICY_BYPASS;
policy.sadb_x_policy_dir = IPSEC_DIR_OUTBOUND;
if (setsockopt(fd, sol, ipsec_policy, &policy, sizeof(policy)) < 0)
{
DBG1(DBG_KNL, "unable to set IPSEC_POLICY on socket: %s",
strerror(errno));
return FALSE;
}
policy.sadb_x_policy_dir = IPSEC_DIR_INBOUND;
if (setsockopt(fd, sol, ipsec_policy, &policy, sizeof(policy)) < 0)
{
DBG1(DBG_KNL, "unable to set IPSEC_POLICY on socket: %s",
strerror(errno));
return FALSE;
}
}
return TRUE;
}
/*
* Described in header.
*/
@@ -1725,12 +1821,12 @@ kernel_netlink_ipsec_t *kernel_netlink_ipsec_create()
/* public functions */
this->public.interface.get_spi = (status_t(*)(kernel_ipsec_t*,host_t*,host_t*,protocol_id_t,u_int32_t,u_int32_t*))get_spi;
this->public.interface.get_cpi = (status_t(*)(kernel_ipsec_t*,host_t*,host_t*,u_int32_t,u_int16_t*))get_cpi;
this->public.interface.add_sa = (status_t(*)(kernel_ipsec_t *,host_t*,host_t*,u_int32_t,protocol_id_t,u_int32_t,u_int64_t,u_int64_t,u_int16_t,chunk_t,u_int16_t,chunk_t,ipsec_mode_t,u_int16_t,bool,bool))add_sa;
this->public.interface.update_sa = (status_t(*)(kernel_ipsec_t*,u_int32_t,protocol_id_t,host_t*,host_t*,host_t*,host_t*,bool))update_sa;
this->public.interface.del_sa = (status_t(*)(kernel_ipsec_t*,host_t*,u_int32_t,protocol_id_t))del_sa;
this->public.interface.add_policy = (status_t(*)(kernel_ipsec_t*,host_t*,host_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,protocol_id_t,u_int32_t,bool,ipsec_mode_t,u_int16_t))add_policy;
this->public.interface.add_sa = (status_t(*)(kernel_ipsec_t *,host_t*,host_t*,u_int32_t,protocol_id_t,u_int32_t,u_int64_t,u_int64_t,u_int16_t,chunk_t,u_int16_t,chunk_t,ipsec_mode_t,u_int16_t,u_int16_t,bool,bool))add_sa;
this->public.interface.update_sa = (status_t(*)(kernel_ipsec_t*,u_int32_t,protocol_id_t,u_int16_t,host_t*,host_t*,host_t*,host_t*,bool,bool))update_sa;
this->public.interface.del_sa = (status_t(*)(kernel_ipsec_t*,host_t*,u_int32_t,protocol_id_t,u_int16_t))del_sa;
this->public.interface.add_policy = (status_t(*)(kernel_ipsec_t*,host_t*,host_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,u_int32_t,protocol_id_t,u_int32_t,ipsec_mode_t,u_int16_t,u_int16_t,bool))add_policy;
this->public.interface.query_policy = (status_t(*)(kernel_ipsec_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,u_int32_t*))query_policy;
this->public.interface.del_policy = (status_t(*)(kernel_ipsec_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t))del_policy;
this->public.interface.del_policy = (status_t(*)(kernel_ipsec_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,bool))del_policy;
this->public.interface.destroy = (void(*)(kernel_ipsec_t*)) destroy;
/* private members */
@@ -1739,6 +1835,12 @@ kernel_netlink_ipsec_t *kernel_netlink_ipsec_create()
this->install_routes = lib->settings->get_bool(lib->settings,
"charon.install_routes", TRUE);
/* add bypass policies on the sockets used by charon */
if (!add_bypass_policies())
{
charon->kill(charon, "unable to add bypass policies on sockets");
}
this->socket_xfrm = netlink_socket_create(NETLINK_XFRM);
memset(&addr, 0, sizeof(addr));
src/charon/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
+96 -36
View File
@@ -38,6 +38,11 @@
#include <processing/jobs/delete_child_sa_job.h>
#include <processing/jobs/update_sa_job.h>
/** from linux/in.h */
#ifndef IP_IPSEC_POLICY
#define IP_IPSEC_POLICY 16
#endif
/** default priority of installed policies */
#define PRIO_LOW 3000
#define PRIO_HIGH 2000
@@ -920,12 +925,12 @@ static void process_mapping(private_kernel_pfkey_ipsec_t *this, struct sadb_msg*
case AF_INET:
{
struct sockaddr_in *sin = (struct sockaddr_in*)sa;
sin->sin_port = response.x_natt_dport->sadb_x_nat_t_port_port;
sin->sin_port = htons(response.x_natt_dport->sadb_x_nat_t_port_port);
}
case AF_INET6:
{
struct sockaddr_in6 *sin6 = (struct sockaddr_in6*)sa;
sin6->sin6_port = response.x_natt_dport->sadb_x_nat_t_port_port;
sin6->sin6_port = htons(response.x_natt_dport->sadb_x_nat_t_port_port);
}
default:
break;
@@ -1098,8 +1103,8 @@ static status_t add_sa(private_kernel_pfkey_ipsec_t *this,
u_int64_t expire_soft, u_int64_t expire_hard,
u_int16_t enc_alg, chunk_t enc_key,
u_int16_t int_alg, chunk_t int_key,
ipsec_mode_t mode, u_int16_t ipcomp, bool encap,
bool replace)
ipsec_mode_t mode, u_int16_t ipcomp, u_int16_t cpi,
bool encap, bool inbound)
{
unsigned char request[PFKEY_BUFFER_SIZE];
struct sadb_msg *msg, *out;
@@ -1116,7 +1121,7 @@ static status_t add_sa(private_kernel_pfkey_ipsec_t *this,
msg = (struct sadb_msg*)request;
msg->sadb_msg_version = PF_KEY_V2;
msg->sadb_msg_type = replace ? SADB_UPDATE : SADB_ADD;
msg->sadb_msg_type = inbound ? SADB_UPDATE : SADB_ADD;
msg->sadb_msg_satype = proto_ike2satype(protocol);
msg->sadb_msg_len = PFKEY_LEN(sizeof(struct sadb_msg));
@@ -1229,9 +1234,10 @@ static status_t add_sa(private_kernel_pfkey_ipsec_t *this,
* Implementation of kernel_interface_t.update_sa.
*/
static status_t update_sa(private_kernel_pfkey_ipsec_t *this,
u_int32_t spi, protocol_id_t protocol,
u_int32_t spi, protocol_id_t protocol, u_int16_t cpi,
host_t *src, host_t *dst,
host_t *new_src, host_t *new_dst, bool encap)
host_t *new_src, host_t *new_dst,
bool encap, bool new_encap)
{
unsigned char request[PFKEY_BUFFER_SIZE];
struct sadb_msg *msg, *out;
@@ -1240,6 +1246,17 @@ static status_t update_sa(private_kernel_pfkey_ipsec_t *this,
pfkey_msg_t response;
size_t len;
/* we can't update the SA if any of the ip addresses have changed.
* that's because we can't use SADB_UPDATE and by deleting and readding the
* SA the sequence numbers would get lost */
if (!src->ip_equals(src, new_src) ||
!dst->ip_equals(dst, new_dst))
{
DBG1(DBG_KNL, "unable to update SAD entry with SPI %.8x: address changes"
" are not supported", ntohl(spi));
return NOT_SUPPORTED;
}
memset(&request, 0, sizeof(request));
DBG2(DBG_KNL, "querying SAD entry with SPI %.8x", ntohl(spi));
@@ -1289,14 +1306,6 @@ static status_t update_sa(private_kernel_pfkey_ipsec_t *this,
return FAILED;
}
/* delete the old SA */
if (this->public.interface.del_sa(&this->public.interface, dst, spi, protocol) != SUCCESS)
{
DBG1(DBG_KNL, "unable to delete old SAD entry with SPI %.8x", ntohl(spi));
free(out);
return FAILED;
}
DBG2(DBG_KNL, "updating SAD entry with SPI %.8x from %#H..%#H to %#H..%#H",
ntohl(spi), src, dst, new_src, new_dst);
@@ -1304,22 +1313,15 @@ static status_t update_sa(private_kernel_pfkey_ipsec_t *this,
msg = (struct sadb_msg*)request;
msg->sadb_msg_version = PF_KEY_V2;
msg->sadb_msg_type = SADB_ADD;
msg->sadb_msg_type = SADB_UPDATE;
msg->sadb_msg_satype = proto_ike2satype(protocol);
msg->sadb_msg_len = PFKEY_LEN(sizeof(struct sadb_msg));
PFKEY_EXT_COPY(msg, response.sa);
PFKEY_EXT_COPY(msg, response.x_sa2);
addr = (struct sadb_address*)PFKEY_EXT_ADD_NEXT(msg);
addr->sadb_address_exttype = SADB_EXT_ADDRESS_SRC;
host2ext(new_src, addr);
PFKEY_EXT_ADD(msg, addr);
addr = (struct sadb_address*)PFKEY_EXT_ADD_NEXT(msg);
addr->sadb_address_exttype = SADB_EXT_ADDRESS_DST;
host2ext(new_dst, addr);
PFKEY_EXT_ADD(msg, addr);
PFKEY_EXT_COPY(msg, response.src);
PFKEY_EXT_COPY(msg, response.dst);
PFKEY_EXT_COPY(msg, response.lft_soft);
PFKEY_EXT_COPY(msg, response.lft_hard);
@@ -1362,7 +1364,7 @@ static status_t update_sa(private_kernel_pfkey_ipsec_t *this,
* Implementation of kernel_interface_t.del_sa.
*/
static status_t del_sa(private_kernel_pfkey_ipsec_t *this, host_t *dst,
u_int32_t spi, protocol_id_t protocol)
u_int32_t spi, protocol_id_t protocol, u_int16_t cpi)
{
unsigned char request[PFKEY_BUFFER_SIZE];
struct sadb_msg *msg, *out;
@@ -1423,9 +1425,10 @@ static status_t add_policy(private_kernel_pfkey_ipsec_t *this,
host_t *src, host_t *dst,
traffic_selector_t *src_ts,
traffic_selector_t *dst_ts,
policy_dir_t direction, protocol_id_t protocol,
u_int32_t reqid, bool high_prio, ipsec_mode_t mode,
u_int16_t ipcomp)
policy_dir_t direction, u_int32_t spi,
protocol_id_t protocol, u_int32_t reqid,
ipsec_mode_t mode, u_int16_t ipcomp, u_int16_t cpi,
bool routed)
{
unsigned char request[PFKEY_BUFFER_SIZE];
struct sadb_msg *msg, *out;
@@ -1476,7 +1479,7 @@ static status_t add_policy(private_kernel_pfkey_ipsec_t *this,
pol->sadb_x_policy_id = 0;
pol->sadb_x_policy_dir = dir2kernel(direction);
/* calculate priority based on source selector size, small size = high prio */
pol->sadb_x_policy_priority = high_prio ? PRIO_HIGH : PRIO_LOW;
pol->sadb_x_policy_priority = routed ? PRIO_LOW : PRIO_HIGH;
pol->sadb_x_policy_priority -= policy->src.mask * 10;
pol->sadb_x_policy_priority -= policy->src.proto != IPSEC_PROTO_ANY ? 2 : 0;
pol->sadb_x_policy_priority -= policy->src.net->get_port(policy->src.net) ? 1 : 0;
@@ -1713,7 +1716,7 @@ static status_t query_policy(private_kernel_pfkey_ipsec_t *this,
static status_t del_policy(private_kernel_pfkey_ipsec_t *this,
traffic_selector_t *src_ts,
traffic_selector_t *dst_ts,
policy_dir_t direction)
policy_dir_t direction, bool unrouted)
{
unsigned char request[PFKEY_BUFFER_SIZE];
struct sadb_msg *msg, *out;
@@ -1869,6 +1872,57 @@ static void destroy(private_kernel_pfkey_ipsec_t *this)
free(this);
}
/**
* Add bypass policies for IKE on the sockets of charon
*/
static bool add_bypass_policies(private_kernel_pfkey_ipsec_t *this)
{
int fd, family, port;
enumerator_t *sockets;
sockets = charon->socket->create_enumerator(charon->socket);
while (sockets->enumerate(sockets, &fd, &family, &port))
{
struct sadb_x_policy policy;
u_int sol, ipsec_policy;
switch (family)
{
case AF_INET:
sol = SOL_IP;
ipsec_policy = IP_IPSEC_POLICY;
break;
case AF_INET6:
{
sol = SOL_IPV6;
ipsec_policy = IPV6_IPSEC_POLICY;
break;
}
}
memset(&policy, 0, sizeof(policy));
policy.sadb_x_policy_len = sizeof(policy) / sizeof(u_int64_t);
policy.sadb_x_policy_exttype = SADB_X_EXT_POLICY;
policy.sadb_x_policy_type = IPSEC_POLICY_BYPASS;
policy.sadb_x_policy_dir = IPSEC_DIR_OUTBOUND;
if (setsockopt(fd, sol, ipsec_policy, &policy, sizeof(policy)) < 0)
{
DBG1(DBG_KNL, "unable to set IPSEC_POLICY on socket: %s",
strerror(errno));
return FALSE;
}
policy.sadb_x_policy_dir = IPSEC_DIR_INBOUND;
if (setsockopt(fd, sol, ipsec_policy, &policy, sizeof(policy)) < 0)
{
DBG1(DBG_KNL, "unable to set IPSEC_POLICY on socket: %s",
strerror(errno));
return FALSE;
}
}
return TRUE;
}
/*
* Described in header.
*/
@@ -1879,12 +1933,12 @@ kernel_pfkey_ipsec_t *kernel_pfkey_ipsec_create()
/* public functions */
this->public.interface.get_spi = (status_t(*)(kernel_ipsec_t*,host_t*,host_t*,protocol_id_t,u_int32_t,u_int32_t*))get_spi;
this->public.interface.get_cpi = (status_t(*)(kernel_ipsec_t*,host_t*,host_t*,u_int32_t,u_int16_t*))get_cpi;
this->public.interface.add_sa = (status_t(*)(kernel_ipsec_t *,host_t*,host_t*,u_int32_t,protocol_id_t,u_int32_t,u_int64_t,u_int64_t,u_int16_t,chunk_t,u_int16_t,chunk_t,ipsec_mode_t,u_int16_t,bool,bool))add_sa;
this->public.interface.update_sa = (status_t(*)(kernel_ipsec_t*,u_int32_t,protocol_id_t,host_t*,host_t*,host_t*,host_t*,bool))update_sa;
this->public.interface.del_sa = (status_t(*)(kernel_ipsec_t*,host_t*,u_int32_t,protocol_id_t))del_sa;
this->public.interface.add_policy = (status_t(*)(kernel_ipsec_t*,host_t*,host_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,protocol_id_t,u_int32_t,bool,ipsec_mode_t,u_int16_t))add_policy;
this->public.interface.add_sa = (status_t(*)(kernel_ipsec_t *,host_t*,host_t*,u_int32_t,protocol_id_t,u_int32_t,u_int64_t,u_int64_t,u_int16_t,chunk_t,u_int16_t,chunk_t,ipsec_mode_t,u_int16_t,u_int16_t,bool,bool))add_sa;
this->public.interface.update_sa = (status_t(*)(kernel_ipsec_t*,u_int32_t,protocol_id_t,u_int16_t,host_t*,host_t*,host_t*,host_t*,bool,bool))update_sa;
this->public.interface.del_sa = (status_t(*)(kernel_ipsec_t*,host_t*,u_int32_t,protocol_id_t,u_int16_t))del_sa;
this->public.interface.add_policy = (status_t(*)(kernel_ipsec_t*,host_t*,host_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,u_int32_t,protocol_id_t,u_int32_t,ipsec_mode_t,u_int16_t,u_int16_t,bool))add_policy;
this->public.interface.query_policy = (status_t(*)(kernel_ipsec_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,u_int32_t*))query_policy;
this->public.interface.del_policy = (status_t(*)(kernel_ipsec_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t))del_policy;
this->public.interface.del_policy = (status_t(*)(kernel_ipsec_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,bool))del_policy;
this->public.interface.destroy = (void(*)(kernel_ipsec_t*)) destroy;
@@ -1910,6 +1964,12 @@ kernel_pfkey_ipsec_t *kernel_pfkey_ipsec_create()
charon->kill(charon, "unable to create PF_KEY event socket");
}
/* add bypass policies on the sockets used by charon */
if (!add_bypass_policies(this))
{
charon->kill(charon, "unable to add bypass policies on sockets");
}
/* register the event socket */
if (register_pfkey_socket(this, SADB_SATYPE_ESP) != SUCCESS ||
register_pfkey_socket(this, SADB_SATYPE_AH) != SUCCESS)
src/charon/plugins/load_tester/load_tester_ipsec.c
+14 -13
View File
@@ -67,8 +67,8 @@ static status_t add_sa(private_load_tester_ipsec_t *this,
u_int64_t expire_soft, u_int64_t expire_hard,
u_int16_t enc_alg, chunk_t enc_key,
u_int16_t int_alg, chunk_t int_key,
ipsec_mode_t mode, u_int16_t ipcomp, bool encap,
bool replace)
ipsec_mode_t mode, u_int16_t ipcomp, u_int16_t cpi,
bool encap, bool inbound)
{
return SUCCESS;
}
@@ -77,9 +77,10 @@ static status_t add_sa(private_load_tester_ipsec_t *this,
* Implementation of kernel_interface_t.update_sa.
*/
static status_t update_sa(private_load_tester_ipsec_t *this,
u_int32_t spi, protocol_id_t protocol,
u_int32_t spi, protocol_id_t protocol, u_int16_t cpi,
host_t *src, host_t *dst,
host_t *new_src, host_t *new_dst, bool encap)
host_t *new_src, host_t *new_dst,
bool encap, bool new_encap)
{
return SUCCESS;
}
@@ -88,7 +89,7 @@ static status_t update_sa(private_load_tester_ipsec_t *this,
* Implementation of kernel_interface_t.del_sa.
*/
static status_t del_sa(private_load_tester_ipsec_t *this, host_t *dst,
u_int32_t spi, protocol_id_t protocol)
u_int32_t spi, protocol_id_t protocol, u_int16_t cpi)
{
return SUCCESS;
}
@@ -101,8 +102,8 @@ static status_t add_policy(private_load_tester_ipsec_t *this,
traffic_selector_t *src_ts,
traffic_selector_t *dst_ts,
policy_dir_t direction, protocol_id_t protocol,
u_int32_t reqid, bool high_prio, ipsec_mode_t mode,
u_int16_t ipcomp)
u_int32_t reqid, ipsec_mode_t mode, u_int16_t ipcomp,
u_int16_t cpi, bool routed)
{
return SUCCESS;
}
@@ -125,7 +126,7 @@ static status_t query_policy(private_load_tester_ipsec_t *this,
static status_t del_policy(private_load_tester_ipsec_t *this,
traffic_selector_t *src_ts,
traffic_selector_t *dst_ts,
policy_dir_t direction)
policy_dir_t direction, bool unrouted)
{
return SUCCESS;
}
@@ -148,12 +149,12 @@ load_tester_ipsec_t *load_tester_ipsec_create()
/* public functions */
this->public.interface.get_spi = (status_t(*)(kernel_ipsec_t*,host_t*,host_t*,protocol_id_t,u_int32_t,u_int32_t*))get_spi;
this->public.interface.get_cpi = (status_t(*)(kernel_ipsec_t*,host_t*,host_t*,u_int32_t,u_int16_t*))get_cpi;
this->public.interface.add_sa = (status_t(*)(kernel_ipsec_t *,host_t*,host_t*,u_int32_t,protocol_id_t,u_int32_t,u_int64_t,u_int64_t,u_int16_t,chunk_t,u_int16_t,chunk_t,ipsec_mode_t,u_int16_t,bool,bool))add_sa;
this->public.interface.update_sa = (status_t(*)(kernel_ipsec_t*,u_int32_t,protocol_id_t,host_t*,host_t*,host_t*,host_t*,bool))update_sa;
this->public.interface.del_sa = (status_t(*)(kernel_ipsec_t*,host_t*,u_int32_t,protocol_id_t))del_sa;
this->public.interface.add_policy = (status_t(*)(kernel_ipsec_t*,host_t*,host_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,protocol_id_t,u_int32_t,bool,ipsec_mode_t,u_int16_t))add_policy;
this->public.interface.add_sa = (status_t(*)(kernel_ipsec_t *,host_t*,host_t*,u_int32_t,protocol_id_t,u_int32_t,u_int64_t,u_int64_t,u_int16_t,chunk_t,u_int16_t,chunk_t,ipsec_mode_t,u_int16_t,u_int16_t,bool,bool))add_sa;
this->public.interface.update_sa = (status_t(*)(kernel_ipsec_t*,u_int32_t,protocol_id_t,u_int16_t,host_t*,host_t*,host_t*,host_t*,bool,bool))update_sa;
this->public.interface.del_sa = (status_t(*)(kernel_ipsec_t*,host_t*,u_int32_t,protocol_id_t,u_int16_t))del_sa;
this->public.interface.add_policy = (status_t(*)(kernel_ipsec_t*,host_t*,host_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,protocol_id_t,u_int32_t,ipsec_mode_t,u_int16_t,u_int16_t,bool))add_policy;
this->public.interface.query_policy = (status_t(*)(kernel_ipsec_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,u_int32_t*))query_policy;
this->public.interface.del_policy = (status_t(*)(kernel_ipsec_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t))del_policy;
this->public.interface.del_policy = (status_t(*)(kernel_ipsec_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,bool))del_policy;
this->public.interface.destroy = (void(*)(kernel_ipsec_t*)) destroy;
this->spi = 0;
src/charon/plugins/nm/Makefile.am
+1 -1
View File
@@ -25,4 +25,4 @@ EXTRA_DIST = gnome/configure gnome/po/LINGUAS gnome/po/POTFILES.in gnome/po/Make
gnome/config.sub gnome/missing
gnome/configure : gnome/configure.in
cd gnome && ./autogen.sh; cd ..
(cd `dirname $<` && ./autogen.sh)