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merging changes from portability branch back to trunk

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important change for developers: %Y replaces %D to print identities!
This commit is contained in:
Tobias Brunner
2009-04-30 11:37:54 +00:00
parent 466f11bfaf
commit d24a74c5b4
120 changed files with 1409 additions and 3053 deletions
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src/charon/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
+142 -61
View File
@@ -1,5 +1,5 @@
/*
* Copyright (C) 2008 Tobias Brunner
* Copyright (C) 2008-2009 Tobias Brunner
* Copyright (C) 2008 Andreas Steffen
* Hochschule fuer Technik Rapperswil
*
@@ -18,10 +18,32 @@
#include <sys/types.h>
#include <sys/socket.h>
#ifdef HAVE_NET_PFKEYV2_H
#include <net/pfkeyv2.h>
#else
#include <stdint.h>
#include <linux/ipsec.h>
#include <linux/pfkeyv2.h>
#endif
#ifdef SADB_X_EXT_NAT_T_TYPE
#define HAVE_NATT
#endif
#ifdef HAVE_NETIPSEC_IPSEC_H
#include <netipsec/ipsec.h>
#else
#include <linux/ipsec.h>
#endif
#ifdef HAVE_NATT
#ifdef HAVE_NETINET_UDP_H
#include <netinet/udp.h>
#else
#include <linux/udp.h>
#endif /*HAVE_NETINET_UDP_H*/
#endif /*HAVE_NATT*/
#include <unistd.h>
#include <pthread.h>
#include <errno.h>
@@ -38,6 +60,30 @@
#include <processing/jobs/delete_child_sa_job.h>
#include <processing/jobs/update_sa_job.h>
/** non linux specific */
#ifndef IPPROTO_COMP
#define IPPROTO_COMP IPPROTO_IPCOMP
#endif
#ifndef SADB_X_AALG_SHA2_256HMAC
#define SADB_X_AALG_SHA2_256HMAC SADB_X_AALG_SHA2_256
#define SADB_X_AALG_SHA2_384HMAC SADB_X_AALG_SHA2_384
#define SADB_X_AALG_SHA2_512HMAC SADB_X_AALG_SHA2_512
#endif
#ifndef SADB_X_EALG_AESCBC
#define SADB_X_EALG_AESCBC SADB_X_EALG_AES
#endif
#ifndef SADB_X_EALG_CASTCBC
#define SADB_X_EALG_CASTCBC SADB_X_EALG_CAST128CBC
#endif
#ifndef SOL_IP
#define SOL_IP IPPROTO_IP
#define SOL_IPV6 IPPROTO_IPV6
#endif
/** from linux/in.h */
#ifndef IP_IPSEC_POLICY
#define IP_IPSEC_POLICY 16
@@ -46,7 +92,7 @@
/* missing on uclibc */
#ifndef IPV6_IPSEC_POLICY
#define IPV6_IPSEC_POLICY 34
#endif /*IPV6_IPSEC_POLICY*/
#endif
/** default priority of installed policies */
#define PRIO_LOW 3000
@@ -160,8 +206,8 @@ struct route_entry_t {
static void route_entry_destroy(route_entry_t *this)
{
free(this->if_name);
this->src_ip->destroy(this->src_ip);
this->gateway->destroy(this->gateway);
DESTROY_IF(this->src_ip);
DESTROY_IF(this->gateway);
chunk_free(&this->dst_net);
free(this);
}
@@ -217,7 +263,7 @@ static policy_entry_t *create_policy_entry(traffic_selector_t *src_ts,
/* src or dest proto may be "any" (0), use more restrictive one */
policy->src.proto = max(src_ts->get_protocol(src_ts), dst_ts->get_protocol(dst_ts));
policy->src.proto = policy->src.proto ? policy->src.proto : IPSEC_PROTO_ANY;
policy->src.proto = policy->src.proto ? policy->src.proto : IPSEC_PROTO_ANY;
policy->dst.proto = policy->src.proto;
return policy;
@@ -268,7 +314,6 @@ struct pfkey_msg_t
*/
struct sadb_msg *msg;
/**
* PF_KEY message extensions
*/
@@ -305,7 +350,7 @@ struct pfkey_msg_t
};
};
ENUM(sadb_ext_type_names, SADB_EXT_RESERVED, SADB_X_EXT_KMADDRESS,
ENUM(sadb_ext_type_names, SADB_EXT_RESERVED, SADB_EXT_MAX,
"SADB_EXT_RESERVED",
"SADB_EXT_SA",
"SADB_EXT_LIFETIME_CURRENT",
@@ -333,6 +378,7 @@ ENUM(sadb_ext_type_names, SADB_EXT_RESERVED, SADB_X_EXT_KMADDRESS,
"SADB_X_EXT_SEC_CTX",
"SADB_X_EXT_KMADDRESS"
);
/**
* convert a IKEv2 specific protocol identifier to the PF_KEY sa type
*/
@@ -396,8 +442,10 @@ static u_int8_t mode2kernel(ipsec_mode_t mode)
return IPSEC_MODE_TRANSPORT;
case MODE_TUNNEL:
return IPSEC_MODE_TUNNEL;
#ifdef IPSEC_MODE_BEET
case MODE_BEET:
return IPSEC_MODE_BEET;
#endif
default:
return mode;
}
@@ -414,13 +462,16 @@ static u_int8_t dir2kernel(policy_dir_t dir)
return IPSEC_DIR_INBOUND;
case POLICY_OUT:
return IPSEC_DIR_OUTBOUND;
#ifdef IPSEC_DIR_FWD
case POLICY_FWD:
return IPSEC_DIR_FWD;
#endif
default:
return dir;
}
}
#ifdef SADB_X_MIGRATE
/**
* convert the policy direction in ipsec.h to the general one.
*/
@@ -432,12 +483,16 @@ static policy_dir_t kernel2dir(u_int8_t dir)
return POLICY_IN;
case IPSEC_DIR_OUTBOUND:
return POLICY_OUT;
#ifdef IPSEC_DIR_FWD
case IPSEC_DIR_FWD:
return POLICY_FWD;
#endif
default:
return dir;
}
}
#endif /*SADB_X_MIGRATE*/
typedef struct kernel_algorithm_t kernel_algorithm_t;
/**
@@ -461,32 +516,32 @@ struct kernel_algorithm_t {
* Algorithms for encryption
*/
static kernel_algorithm_t encryption_algs[] = {
/* {ENCR_DES_IV64, 0 }, */
{ENCR_DES, SADB_EALG_DESCBC },
{ENCR_3DES, SADB_EALG_3DESCBC },
/* {ENCR_RC5, 0 }, */
/* {ENCR_IDEA, 0 }, */
{ENCR_CAST, SADB_X_EALG_CASTCBC },
{ENCR_BLOWFISH, SADB_X_EALG_BLOWFISHCBC },
/* {ENCR_3IDEA, 0 }, */
/* {ENCR_DES_IV32, 0 }, */
{ENCR_NULL, SADB_EALG_NULL },
{ENCR_AES_CBC, SADB_X_EALG_AESCBC },
/* {ENCR_AES_CTR, SADB_X_EALG_AESCTR }, */
/* {ENCR_DES_IV64, 0 }, */
{ENCR_DES, SADB_EALG_DESCBC },
{ENCR_3DES, SADB_EALG_3DESCBC },
/* {ENCR_RC5, 0 }, */
/* {ENCR_IDEA, 0 }, */
{ENCR_CAST, SADB_X_EALG_CASTCBC },
{ENCR_BLOWFISH, SADB_X_EALG_BLOWFISHCBC },
/* {ENCR_3IDEA, 0 }, */
/* {ENCR_DES_IV32, 0 }, */
{ENCR_NULL, SADB_EALG_NULL },
{ENCR_AES_CBC, SADB_X_EALG_AESCBC },
/* {ENCR_AES_CTR, SADB_X_EALG_AESCTR }, */
/* {ENCR_AES_CCM_ICV8, SADB_X_EALG_AES_CCM_ICV8 }, */
/* {ENCR_AES_CCM_ICV12, SADB_X_EALG_AES_CCM_ICV12 }, */
/* {ENCR_AES_CCM_ICV16, SADB_X_EALG_AES_CCM_ICV16 }, */
/* {ENCR_AES_GCM_ICV8, SADB_X_EALG_AES_GCM_ICV8 }, */
/* {ENCR_AES_GCM_ICV12, SADB_X_EALG_AES_GCM_ICV12 }, */
/* {ENCR_AES_GCM_ICV16, SADB_X_EALG_AES_GCM_ICV16 }, */
{END_OF_LIST, 0 },
{END_OF_LIST, 0 },
};
/**
* Algorithms for integrity protection
*/
static kernel_algorithm_t integrity_algs[] = {
{AUTH_HMAC_MD5_96, SADB_AALG_MD5HMAC },
{AUTH_HMAC_MD5_96, SADB_AALG_MD5HMAC },
{AUTH_HMAC_SHA1_96, SADB_AALG_SHA1HMAC },
{AUTH_HMAC_SHA2_256_128, SADB_X_AALG_SHA2_256HMAC },
{AUTH_HMAC_SHA2_384_192, SADB_X_AALG_SHA2_384HMAC },
@@ -494,7 +549,7 @@ static kernel_algorithm_t integrity_algs[] = {
/* {AUTH_DES_MAC, 0, }, */
/* {AUTH_KPDK_MD5, 0, }, */
{AUTH_AES_XCBC_96, SADB_X_AALG_AES_XCBC_MAC, },
{END_OF_LIST, 0, },
{END_OF_LIST, 0, },
};
#if 0
@@ -502,11 +557,11 @@ static kernel_algorithm_t integrity_algs[] = {
* Algorithms for IPComp, unused yet
*/
static kernel_algorithm_t compression_algs[] = {
/* {IPCOMP_OUI, 0 }, */
/* {IPCOMP_OUI, 0 }, */
{IPCOMP_DEFLATE, SADB_X_CALG_DEFLATE },
{IPCOMP_LZS, SADB_X_CALG_LZS },
{IPCOMP_LZJH, SADB_X_CALG_LZJH },
{END_OF_LIST, 0 },
{END_OF_LIST, 0 },
};
#endif
@@ -533,8 +588,11 @@ static void host2ext(host_t *host, struct sadb_address *ext)
{
sockaddr_t *host_addr = host->get_sockaddr(host);
socklen_t *len = host->get_sockaddr_len(host);
memcpy((char*)(ext + 1), host_addr, *len);
ext->sadb_address_len = PFKEY_LEN(sizeof(*ext) + *len);
#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
host_addr->sa_len = *len;
#endif
memcpy((char*)(ext + 1), host_addr, *len);
ext->sadb_address_len = PFKEY_LEN(sizeof(*ext) + *len);
}
/**
@@ -562,10 +620,14 @@ static void add_anyaddr_ext(struct sadb_msg *msg, int family, u_int8_t type)
addr->sadb_address_exttype = type;
sockaddr_t *saddr = (sockaddr_t*)(addr + 1);
saddr->sa_family = family;
addr->sadb_address_len = PFKEY_LEN(sizeof(*addr) + len);
#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
saddr->sa_len = len;
#endif
addr->sadb_address_len = PFKEY_LEN(sizeof(*addr) + len);
PFKEY_EXT_ADD(msg, addr);
}
#ifdef HAVE_NATT
/**
* add udp encap extensions to a sadb_msg
*/
@@ -592,6 +654,7 @@ static void add_encap_ext(struct sadb_msg *msg, host_t *src, host_t *dst)
nat_port->sadb_x_nat_t_port_port = htons(dst->get_port(dst));
PFKEY_EXT_ADD(msg, nat_port);
}
#endif /*HAVE_NATT*/
/**
* Convert a sadb_address to a traffic_selector
@@ -606,7 +669,7 @@ static traffic_selector_t* sadb_address2ts(struct sadb_address *address)
*/
host = host_create_from_sockaddr((sockaddr_t*)&address[1]) ;
ts = traffic_selector_create_from_subnet(host, address->sadb_address_prefixlen,
address->sadb_address_proto, host->get_port(host));
address->sadb_address_proto, host->get_port(host));
return ts;
}
@@ -645,7 +708,7 @@ static status_t parse_pfkey_message(struct sadb_msg *msg, pfkey_msg_t *out)
if (out->ext[ext->sadb_ext_type])
{
DBG1(DBG_KNL, "duplicate %N extension",
DBG1(DBG_KNL, "duplicate %N extension",
sadb_ext_type_names, ext->sadb_ext_type);
break;
}
@@ -699,7 +762,7 @@ static status_t pfkey_send_socket(private_kernel_pfkey_ipsec_t *this, int socket
}
while (TRUE)
{
{
msg = (struct sadb_msg*)buf;
len = recv(socket, buf, sizeof(buf), 0);
@@ -757,7 +820,7 @@ static status_t pfkey_send_socket(private_kernel_pfkey_ipsec_t *this, int socket
*out_len = len;
*out = (struct sadb_msg*)malloc(len);
memcpy(*out, buf, len);
this->mutex_pfkey->unlock(this->mutex_pfkey);
return SUCCESS;
@@ -868,8 +931,9 @@ static void process_expire(private_kernel_pfkey_ipsec_t *this, struct sadb_msg*
charon->processor->queue_job(charon->processor, job);
}
#ifdef SADB_X_MIGRATE
/**
* Process a SADB_MIGRATE message from the kernel
* Process a SADB_X_MIGRATE message from the kernel
*/
static void process_migrate(private_kernel_pfkey_ipsec_t *this, struct sadb_msg* msg)
{
@@ -893,7 +957,7 @@ static void process_migrate(private_kernel_pfkey_ipsec_t *this, struct sadb_msg*
DBG2(DBG_KNL, " policy %R === %R %N, id %u", src_ts, dst_ts,
policy_dir_names, dir);
/* SADB_X_EXT_KMADDRESS is not present in unpatched kernels < 2.6.28 */
/* SADB_X_EXT_KMADDRESS is not present in unpatched kernels < 2.6.28 */
if (response.x_kmaddress)
{
sockaddr_t *local_addr, *remote_addr;
@@ -924,7 +988,9 @@ static void process_migrate(private_kernel_pfkey_ipsec_t *this, struct sadb_msg*
DESTROY_IF(remote);
}
}
#endif /*SADB_X_MIGRATE*/
#ifdef HAVE_NATT
/**
* Process a SADB_X_NAT_T_NEW_MAPPING message from the kernel
*/
@@ -980,6 +1046,7 @@ static void process_mapping(private_kernel_pfkey_ipsec_t *this, struct sadb_msg*
}
}
}
#endif /*HAVE_NATT*/
/**
* Receives events from kernel
@@ -991,7 +1058,7 @@ static job_requeue_t receive_events(private_kernel_pfkey_ipsec_t *this)
int len, oldstate;
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &oldstate);
len = recv(this->socket_events, buf, sizeof(buf), 0);
len = recvfrom(this->socket_events, buf, sizeof(buf), 0, NULL, 0);
pthread_setcancelstate(oldstate, NULL);
if (len < 0)
@@ -1035,12 +1102,16 @@ static job_requeue_t receive_events(private_kernel_pfkey_ipsec_t *this)
case SADB_EXPIRE:
process_expire(this, msg);
break;
#ifdef SADB_X_MIGRATE
case SADB_X_MIGRATE:
process_migrate(this, msg);
break;
#endif /*SADB_X_MIGRATE*/
#ifdef HAVE_NATT
case SADB_X_NAT_T_NEW_MAPPING:
process_mapping(this, msg);
break;
#endif /*HAVE_NATT*/
default:
break;
}
@@ -1051,8 +1122,8 @@ static job_requeue_t receive_events(private_kernel_pfkey_ipsec_t *this)
/**
* Implementation of kernel_interface_t.get_spi.
*/
static status_t get_spi(private_kernel_pfkey_ipsec_t *this,
host_t *src, host_t *dst,
static status_t get_spi(private_kernel_pfkey_ipsec_t *this,
host_t *src, host_t *dst,
protocol_id_t protocol, u_int32_t reqid,
u_int32_t *spi)
{
@@ -1099,7 +1170,7 @@ static status_t get_spi(private_kernel_pfkey_ipsec_t *this,
{
received_spi = response.sa->sadb_sa_spi;
}
free(out);
free(out);
}
if (received_spi == 0)
@@ -1114,8 +1185,8 @@ static status_t get_spi(private_kernel_pfkey_ipsec_t *this,
/**
* Implementation of kernel_interface_t.get_cpi.
*/
static status_t get_cpi(private_kernel_pfkey_ipsec_t *this,
host_t *src, host_t *dst,
static status_t get_cpi(private_kernel_pfkey_ipsec_t *this,
host_t *src, host_t *dst,
u_int32_t reqid, u_int16_t *cpi)
{
return FAILED;
@@ -1226,11 +1297,13 @@ static status_t add_sa(private_kernel_pfkey_ipsec_t *this,
{
/*TODO*/
}
#ifdef HAVE_NATT
if (encap)
{
add_encap_ext(msg, src, dst);
}
#endif /*HAVE_NATT*/
if (pfkey_send(this, msg, &out, &len) != SUCCESS)
{
@@ -1346,11 +1419,13 @@ static status_t update_sa(private_kernel_pfkey_ipsec_t *this,
{
PFKEY_EXT_COPY(msg, response.key_auth);
}
#ifdef HAVE_NATT
if (new_encap)
{
add_encap_ext(msg, new_src, new_dst);
}
#endif /*HAVE_NATT*/
free(out);
@@ -1374,8 +1449,9 @@ 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_int16_t cpi)
static status_t del_sa(private_kernel_pfkey_ipsec_t *this, host_t *src,
host_t *dst, u_int32_t spi, protocol_id_t protocol,
u_int16_t cpi)
{
unsigned char request[PFKEY_BUFFER_SIZE];
struct sadb_msg *msg, *out;
@@ -1398,9 +1474,8 @@ static status_t del_sa(private_kernel_pfkey_ipsec_t *this, host_t *dst,
sa->sadb_sa_spi = spi;
PFKEY_EXT_ADD(msg, sa);
/* the kernel wants a SADB_EXT_ADDRESS_SRC to be present even though
* it is not used for anything. */
add_anyaddr_ext(msg, dst->get_family(dst), SADB_EXT_ADDRESS_SRC);
/* the Linux Kernel doesn't care for the src address, but other systems do (e.g. FreeBSD) */
add_addr_ext(msg, src, SADB_EXT_ADDRESS_SRC, 0, 0);
add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0);
if (pfkey_send(this, msg, &out, &len) != SUCCESS)
@@ -1424,7 +1499,7 @@ static status_t del_sa(private_kernel_pfkey_ipsec_t *this, host_t *dst,
/**
* Implementation of kernel_interface_t.add_policy.
*/
static status_t add_policy(private_kernel_pfkey_ipsec_t *this,
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,
@@ -1463,7 +1538,7 @@ static status_t add_policy(private_kernel_pfkey_ipsec_t *this,
this->policies->insert_last(this->policies, policy);
policy->refcount = 1;
}
memset(&request, 0, sizeof(request));
DBG2(DBG_KNL, "adding policy %R === %R %N", src_ts, dst_ts,
@@ -1480,12 +1555,14 @@ static status_t add_policy(private_kernel_pfkey_ipsec_t *this,
pol->sadb_x_policy_len = PFKEY_LEN(sizeof(struct sadb_x_policy));
pol->sadb_x_policy_id = 0;
pol->sadb_x_policy_dir = dir2kernel(direction);
pol->sadb_x_policy_type = IPSEC_POLICY_IPSEC;
#ifdef HAVE_STRUCT_SADB_X_POLICY_SADB_X_POLICY_PRIORITY
/* calculate priority based on source selector size, small size = high prio */
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;
pol->sadb_x_policy_type = IPSEC_POLICY_IPSEC;
#endif
/* one or more sadb_x_ipsecrequest extensions are added to the sadb_x_policy extension */
req = (struct sadb_x_ipsecrequest*)(pol + 1);
@@ -1599,9 +1676,9 @@ static status_t add_policy(private_kernel_pfkey_ipsec_t *this,
{
free(route);
}
}
}
this->mutex->unlock(this->mutex);
this->mutex->unlock(this->mutex);
return SUCCESS;
}
@@ -1610,7 +1687,7 @@ static status_t add_policy(private_kernel_pfkey_ipsec_t *this,
* Implementation of kernel_interface_t.query_policy.
*/
static status_t query_policy(private_kernel_pfkey_ipsec_t *this,
traffic_selector_t *src_ts,
traffic_selector_t *src_ts,
traffic_selector_t *dst_ts,
policy_dir_t direction, u_int32_t *use_time)
{
@@ -1689,7 +1766,7 @@ static status_t query_policy(private_kernel_pfkey_ipsec_t *this,
*use_time = response.lft_current->sadb_lifetime_usetime;
free(out);
return SUCCESS;
}
@@ -1697,7 +1774,7 @@ static status_t query_policy(private_kernel_pfkey_ipsec_t *this,
* Implementation of kernel_interface_t.del_policy.
*/
static status_t del_policy(private_kernel_pfkey_ipsec_t *this,
traffic_selector_t *src_ts,
traffic_selector_t *src_ts,
traffic_selector_t *dst_ts,
policy_dir_t direction, bool unrouted)
{
@@ -1722,7 +1799,7 @@ static status_t del_policy(private_kernel_pfkey_ipsec_t *this,
if (--found->refcount > 0)
{
/* is used by more SAs, keep in kernel */
DBG2(DBG_KNL, "policy still used by another CHILD_SA, not removed");
DBG2(DBG_KNL, "policy still used by another CHILD_SA, not removed");
policy_entry_destroy(policy);
this->mutex->unlock(this->mutex);
return SUCCESS;
@@ -1741,7 +1818,7 @@ static status_t del_policy(private_kernel_pfkey_ipsec_t *this,
return NOT_FOUND;
}
this->mutex->unlock(this->mutex);
memset(&request, 0, sizeof(request));
msg = (struct sadb_msg*)request;
@@ -1791,7 +1868,7 @@ static status_t del_policy(private_kernel_pfkey_ipsec_t *this,
DBG1(DBG_KNL, "error uninstalling route installed with "
"policy %R === %R %N", src_ts, dst_ts,
policy_dir_names, direction);
}
}
route_entry_destroy(route);
}
@@ -1863,22 +1940,26 @@ static bool add_bypass_policies(private_kernel_pfkey_ipsec_t *this)
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;
}
default:
continue;
}
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)
{
@@ -1890,7 +1971,7 @@ static bool add_bypass_policies(private_kernel_pfkey_ipsec_t *this)
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",
DBG1(DBG_KNL, "unable to set IPSEC_POLICY on socket: %s",
strerror(errno));
status = FALSE;
break;
@@ -1912,7 +1993,7 @@ kernel_pfkey_ipsec_t *kernel_pfkey_ipsec_create()
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,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.del_sa = (status_t(*)(kernel_ipsec_t*,host_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,bool))del_policy;