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Update IPSec support for windows Vista and 7

This commit is contained in:
imsframework 2009-10-26 03:02:19 +00:00
parent 79ea622a71
commit 7a27446603
7 changed files with 714 additions and 25 deletions
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70
trunk/tinyIPSec/test/test.c
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@ -27,15 +27,85 @@
#include "stdafx.h"
#include "ipsec_api.h"
#define REMOTE_IP "192.168.0.9" //"2a01:e35:8b32:7050:6122:2706:2124:32ca"//"192.168.0.15"
#define LOCAL_IP "192.168.0.14" //"2a01:e35:8b32:7050:6122:2706:2124:32cb"//"192.168.0.14"
#define IK "1234567890123456"
#define CK "1234567890121234"
#define PORT_LOCAL_C 1010
#define PORT_LOCAL_S 2020
#define PORT_REMOTE_C 3030
#define PORT_REMOTE_S 4040
#define SPI_REMOTE_C 2222
#define SPI_REMOTE_S 3333
int _tmain(int argc, _TCHAR* argv[])
{
ipsec_context_t* context = 0;
uint32_t spi_local_s = 0, spi_local_c = 0, spi_remote_s = 0, spi_remote_c = 0;
/* create context */
IPSEC_CONTEXT_CREATE(context);
// FIXME: check context validity
/* set algorithms, proto and mode */
context->auth = iaa_hmac_md5_96;
context->encrypt = iea_3des;
context->proto = ipp_both;
context->mode = ipm_transport;
/* set ik and ck */
ipsec_set_ck(context, CK);
ipsec_set_ik(context, IK);
/* set local and remote IPs */
context->localIP = ipsec_strdup(LOCAL_IP);
context->remoteIP = ipsec_strdup(REMOTE_IP);
context->ipv6 = 0;
/* set local ports */
context->SAs[ipd_incoming_req].port = PORT_LOCAL_S; /* US <- PC */
context->SAs[ipd_incoming_rep].port = PORT_LOCAL_C; /* UC <- PS */
/* get local spis */
spi_local_s = ipsec_get_spi(context, ipd_incoming_req);
spi_local_c = ipsec_get_spi(context, ipd_incoming_rep);
/*******
now send your first request with security-client header using
...
*/
printf("Security-Client: ipsec-3gpp; alg=%s; ealg=%s; spi-c=%u; spi-s=%u; port-c=%u; port-s=%u\n\n",
IPSEC_AUTH_ALG_STR(context->auth), IPSEC_ENC_ALG_STR(context->encrypt), spi_local_c, spi_local_s, PORT_LOCAL_C, PORT_LOCAL_S
);
getchar();
/*
get and process the 401/407
...
*/
printf("Security-Server: ipsec-3gpp; q=0.1; alg=%s; ealg=%s; spi-c=%u; spi-s=%u; port-c=%u; port-s=%u\n\n",
IPSEC_AUTH_ALG_STR(context->auth), IPSEC_ENC_ALG_STR(context->encrypt), SPI_REMOTE_C, SPI_REMOTE_S, PORT_REMOTE_C, PORT_REMOTE_S
);
/* set values for remote entity */
context->SAs[ipd_outgoing_rep].port = PORT_REMOTE_C; /* US -> PC */
context->SAs[ipd_outgoing_rep].spi = SPI_REMOTE_C; /* US -> PC */
context->SAs[ipd_outgoing_req].port = PORT_REMOTE_S; /* UC -> PS */
context->SAs[ipd_outgoing_req].spi = SPI_REMOTE_S; /* UC -> PS */
/* bound SAs and begin sending/receiving sip messages */
ipsec_sa_bound(context, ipd_incoming_rep);
ipsec_sa_bound(context, ipd_incoming_req);
ipsec_sa_bound(context, ipd_outgoing_rep);
ipsec_sa_bound(context, ipd_outgoing_req);
getchar();
/* free context */
IPSEC_CONTEXT_SAFE_FREE(context);

51
trunk/tinyIPSec/tinyIPSec/src/ipsec.c Normal file
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@ -0,0 +1,51 @@
/****************************************************************************
_ _
| | | |
_ | | ___ _ _| | _ ____ ____ ____ ___
/ || |/ _ \| | | | || \ / _ | _ \ / _ |/ _ \
( (_| | |_| | |_| | |_) | ( | | | | ( ( | | |_| |
\____|\___/ \____|____/ \_||_|_| |_|\_|| |\___/
(_____|
Copyright (C) 2009 xxxyyyzzz <imsframework(at)gmail.com>
This file is part of Open Source Doubango IMS Client Framework project.
DOUBANGO 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 3 of the License, or
(at your option) any later version.
DOUBANGO 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 Lesser General Public License for more details.
You should have received a copy of the GNU General Public License
along with DOUBANGO.
****************************************************************************/
#include "ipsec.h"
/* init ipsec SA */
void ipsec_sa_init(ipsec_sa_t* sa)
{
memset(sa, 0, sizeof(ipsec_sa_t));
sa->lifetime = SA_DEFAULT_LIFETIME;
}
/* free ipsec SA */
void ipsec_sa_free(ipsec_sa_t* sa)
{
if(sa)
{
if((sa)->opaque)
{
if((sa)->opaque_func_free) (sa)->opaque_func_free(&((sa)->opaque));
free((sa)->opaque);
(sa)->opaque = 0;
}
free(sa);
(sa) = 0;
}
}

62
trunk/tinyIPSec/tinyIPSec/src/ipsec.h
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@ -31,25 +31,44 @@
#include "ipsec_utils.h"
typedef unsigned long ipsec_error_t;
#define SA_COUNT 4
#define SA_DEFAULT_LIFETIME 3600 /* 1 hour */
#define IPSEC_KEY_LEN 16
#define IPSEC_IK_LEN 20
#define IPSEC_CK_LEN 24
#define IPSEC_AUTH_ALG_STR(alg) (alg == iaa_hmac_md5_96) ? "hmac-md5-96" : "hmac-sha-1-96"
#define IPSEC_ENC_ALG_STR(enc) (enc == iea_3des) ? "des-ede3-cbc" : (enc== iea_aes ? "aes-cbc" : "null")
#define IPSEC_MODE_STR(mode) (mode == ipm_transport) ? "trans" : "tun"
#define IPSEC_PROTO_STR(proto) (proto == ipp_ah) ? "ah" : "esp"
/* function pointer ... */
typedef void (*ipsec_sa_opaque_func_free)(void** opaque);
/* context */
#define IPSEC_CONTEXT_CREATE(ctx) IPSEC_XXX_CREATE(ctx, context)
#define IPSEC_CONTEXT_SAFE_FREE(ctx) IPSEC_XXX_SAFE_FREE(ctx, context)
/* SA */
#define IPSEC_SA_CREATE(_sa) IPSEC_XXX_CREATE(_sa, sa)
#define IPSEC_SA_SAFE_FREE(_sa) IPSEC_XXX_SAFE_FREE(_sa, sa)
/* directions */
typedef enum ipsec_direction_s
{
ipd_incoming_req, /* US <- PC */
ipd_incoming_rep, /* UC <- PC */
ipd_outgoing_req, /* UC <- PS */
ipd_outgoing_rep /* US -> PC */
ipd_incoming_req = 0x00, /* US <- PC */
ipd_incoming_rep, /* UC <- PS */
ipd_outgoing_req, /* UC -> PS */
ipd_outgoing_rep /* US -> PC */
}
ipsec_direction_t;
/* encryption algorithm */
typedef enum ipsec_encrypt_algo_s
{
iea_des = 0x00,
iea_null = 0x00,
iea_des,
iea_3des,
iea_aes
}
@ -93,27 +112,44 @@ typedef struct ipsec_sa_s
{
uint32_t lifetime; /* sa lifetime */
uint32_t spi; /* a unique parameter index */
char* ik; /* integrity key */
char* ck; /* cipher key */
ipsec_direction_t direction; /* direction */
ipsec_encrypt_algo_t encrypt; /* encryption algorithm */
ipsec_auth_algo_t auth; /* authentication algorithm */
ipsec_mode_t mode; /* mode of operation */
//ipsec_direction_t direction; /* direction */
char* ip;
int ipv6;
//char* ip;
uint16_t port;
ipsec_sa_opaque_func_free opaque_func_free;
void* opaque; /* platform specific */
}
ipsec_sa_t;
/* ipsec context */
typedef struct ipsec_context_s
{
ipsec_encrypt_algo_t encrypt; /* encryption algorithm */
ipsec_auth_algo_t auth; /* authentication algorithm */
ipsec_mode_t mode; /* mode of operation */
ipsec_transport_t trans; /* network transport */
ipsec_protocol_t proto; /* protocol type */
int ipv6;
char* localIP;
char* remoteIP;
ipsec_sa_t SAs[SA_COUNT];
void* opaque; /* platform specific */
}
ipsec_context_t;
TINYIPSEC_API ipsec_error_t ipsec_context_init(ipsec_context_t* context);
TINYIPSEC_API uint32_t ipsec_get_spi(const ipsec_context_t* context, ipsec_direction_t direction);
TINYIPSEC_API void ipsec_set_ik(ipsec_context_t* context, const char ik[IPSEC_KEY_LEN]);
TINYIPSEC_API void ipsec_set_ck(ipsec_context_t* context, const char ck[IPSEC_KEY_LEN]);
TINYIPSEC_API int ipsec_sa_bound(ipsec_context_t* context, ipsec_direction_t direction);
TINYIPSEC_API void ipsec_flush(const ipsec_context_t* context);
TINYIPSEC_API void ipsec_context_free(ipsec_context_t** context);
TINYIPSEC_API void ipsec_sa_init(ipsec_sa_t* sa);
TINYIPSEC_API void ipsec_sa_free(ipsec_sa_t* sa);
#endif /* _TINYIPSEC_IPSEC_H_ */

43
trunk/tinyIPSec/tinyIPSec/src/ipsec.linux.c
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@ -25,14 +25,55 @@
along with DOUBANGO.
****************************************************************************/
#include "ipsec.h"
#include <time.h>
#if HAVE_LINUX_IPSEC
/* ipsec context for linux platform */
typedef struct ipsec_linux_context_s
{
int FIXME;
}
ipsec_linux_context_t;
/* initialize ipsec context */
/* returns 0 if succeed and nonzero otherwise */
ipsec_error_t ipsec_context_init(ipsec_context_t* context)
{
memset(context, 0, sizeof(ipsec_context_t));
srand (time(0));
/* SAs */
for(i=0; i<SA_COUNT; i++)
{
ipsec_sa_init(context->SAs[i]);
}
return 0;
}
/* free ipsec context */
void ipsec_context_free(ipsec_context_t** context)
{
if(*context)
{
/* flush all SAs */
ipsec_flush(*context);
/* SAs */
for(i=0; i<SA_COUNT; i++)
{
ipsec_sa_free(&(context->SAs[i]));
}
free(*context);
(*context) = 0;
}
}
/* flush all associated ipsec SAs */
void ipsec_flush(const ipsec_context_t* context)
{
}
#endif /* HAVE_IPSEC_TOOLS */

504
trunk/tinyIPSec/tinyIPSec/src/ipsec.win32.c
View File

@ -25,51 +25,537 @@
along with DOUBANGO.
****************************************************************************/
#include "ipsec.h"
#include <stdio.h>
#include <time.h>
#include <Fwpmu.h>
#if HAVE_WIN32_IPSEC
#define GET_OPAQUE(context) ((ipsec_win32_opaque_t*)(context)->opaque)
#define CLEANUP_ON_ERROR(result) if(result != ERROR_SUCCESS) goto CLEANUP;
#define TINYIPSEC_FILTER_NAME TEXT("tinyIPSEC")
#define TINYIPSEC_PROVIDER_KEY NULL
#define WIN32_SA_MAX_LIFETIME 172799
#define TINYIPSEC_SA_NUM_ENTRIES_TO_REQUEST 20
#define GET_CONTEXT_OPAQUE(context) ((ipsec_win32_context_opaque_t*)(context)->opaque)
#define GET_SA_OPAQUE(sa) ((ipsec_win32_sa_opaque_t*)(sa).opaque)
#if defined(DEBUG) || defined(_DEBUG)
# define DEBUG_PRINT printf
#else
# define DEBUG_PRINT
#endif
/* ipsec opaque for win32 platform */
typedef struct ipsec_win32_opaque_s
#define GET_WIN32_AUTH_ID(auth) (auth == iaa_hmac_md5_96) ? IPSEC_AUTH_TRANSFORM_ID_HMAC_MD5_96 : IPSEC_AUTH_TRANSFORM_ID_HMAC_SHA_1_96
#define GET_WIN32_ENC_ID(enc) (enc == iea_3des) ? IPSEC_CIPHER_TRANSFORM_ID_CBC_3DES : ( (enc == iea_aes) ? IPSEC_CIPHER_TRANSFORM_ID_AES_128 : IPSEC_CIPHER_TRANSFORM_ID_NULL_NULL )
#define GET_WIN32_MODE(mode) (mode == ipm_tunnel) ? IPSEC_TRAFFIC_TYPE_TUNNEL : IPSEC_TRAFFIC_TYPE_TRANSPORT
#define GET_WIN32_TRANS(trans) (trans == ipt_tcp) ? IPPROTO_TCP : IPPROTO_UDP
#define GET_WIN32_IPVER(ipv6) (ipv6) ? FWP_IP_VERSION_V6 : FWP_IP_VERSION_V4
#define GET_WIN32_PROTO(proto) (proto == ipp_ah) ? IPSEC_TRANSFORM_AH : ( (proto == ipp_esp) ? IPSEC_TRANSFORM_ESP_AUTH : IPSEC_TRANSFORM_ESP_AUTH_AND_CIPHER );
/* ipsec opaques for win32 platform */
typedef struct ipsec_win32_context_opaque_s
{
FWP_BYTE_BLOB ik;
FWP_BYTE_BLOB ck;
HANDLE engine;
}
ipsec_win32_opaque_t;
ipsec_win32_context_opaque_t;
/* sa endpoint definition*/
typedef struct ipsec_sa_endpoints_s
{
union
{
UINT32 localV4Address;
UINT8 localV6Address[ 16 ];
};
union
{
UINT32 remoteV4Address;
UINT8 remoteV6Address[ 16 ];
};
}ipsec_sa_endpoints_t;
/* as WFP do not provide null encryption I define my own*/
static const IPSEC_CIPHER_TRANSFORM_ID0 IPSEC_CIPHER_TRANSFORM_ID_NULL_NULL=
{
(IPSEC_CIPHER_TYPE)NULL,
(IPSEC_CIPHER_TYPE)NULL
};
typedef struct ipsec_win32_sa_opaque_s
{
IPSEC_SA_SPI spi;
UINT64 inFilterId;
UINT64 outFilterId;
UINT64 saId;
ipsec_sa_endpoints_t endpoint;
}
ipsec_win32_sa_opaque_t;
void DeleteSaContextAndFilters(__in HANDLE engine, __in UINT64 inFilterId, __in UINT64 outFilterId, __in UINT64 saId);
DWORD getInboundSPI(ipsec_context_t* context, ipsec_direction_t direction);
ipsec_sa_endpoints_t get_endpoint(const ipsec_context_t* context);
/* free win32 opaque */
void ipsec_win32_sa_opaque_free(void** _opaque)
{
if(*_opaque)
{
ipsec_win32_sa_opaque_t** opaque = ((ipsec_win32_sa_opaque_t**)_opaque);
free(*opaque);
(*opaque) = 0;
}
}
/* initialize ipsec context */
/* returns 0 if succeed and nonzero otherwise */
ipsec_error_t ipsec_context_init(ipsec_context_t* context)
{
ipsec_error_t code = ERROR_SUCCESS;
int i = 0;
memset(context, 0, sizeof(ipsec_context_t));
srand((unsigned int)time(0));
/* opaque */
context->opaque = malloc(sizeof(ipsec_win32_opaque_t));
memset(context->opaque, 0, sizeof(ipsec_win32_opaque_t));
context->opaque = malloc(sizeof(ipsec_win32_context_opaque_t));
memset(context->opaque, 0, sizeof(ipsec_win32_context_opaque_t));
/* SAs */
for(i=0; i<SA_COUNT; i++)
{
ipsec_sa_init(&(context->SAs[i]));
context->SAs[i].opaque = malloc(sizeof(ipsec_win32_sa_opaque_t));
memset(context->SAs[i].opaque, 0, sizeof(ipsec_win32_sa_opaque_t));
context->SAs[i].opaque_func_free = ipsec_win32_sa_opaque_free;
}
/* open engine */
if(code = FwpmEngineOpen0(NULL, RPC_C_AUTHN_WINNT, NULL, NULL, &GET_OPAQUE(context)->engine))
if(code = FwpmEngineOpen0(NULL, RPC_C_AUTHN_WINNT, NULL, NULL, &GET_CONTEXT_OPAQUE(context)->engine))
{
return code;
}
return code;
}
/* get spi */
uint32_t ipsec_get_spi(const ipsec_context_t* context, ipsec_direction_t direction)
{
switch(direction)
{
case ipd_incoming_req: /* US <- PC */
case ipd_incoming_rep: /* UC <- PS */
{
/* already set do not change */
if(!context->SAs[direction].spi)
getInboundSPI(context, direction);
return context->SAs[direction].spi;
}
case ipd_outgoing_req: /* UC -> PS */
case ipd_outgoing_rep: /* US -> PC */
default:
{
return context->SAs[direction].spi;
}
}
}
/* set integrity key */
void ipsec_set_ik(ipsec_context_t* context, const char ik[IPSEC_KEY_LEN])
{
IPSEC_SAFE_FREE(GET_CONTEXT_OPAQUE(context)->ik.data);
GET_CONTEXT_OPAQUE(context)->ik.data = malloc(IPSEC_IK_LEN);
memset(GET_CONTEXT_OPAQUE(context)->ik.data, 0, IPSEC_IK_LEN);
memcpy(GET_CONTEXT_OPAQUE(context)->ik.data, ik, IPSEC_KEY_LEN);
GET_CONTEXT_OPAQUE(context)->ik.size = IPSEC_KEY_LEN;
}
/* set cipher key */
void ipsec_set_ck(ipsec_context_t* context, const char ck[IPSEC_KEY_LEN])
{
IPSEC_SAFE_FREE(GET_CONTEXT_OPAQUE(context)->ck.data);
GET_CONTEXT_OPAQUE(context)->ck.data = malloc(IPSEC_CK_LEN);
memset(GET_CONTEXT_OPAQUE(context)->ck.data, 0, IPSEC_IK_LEN);
memcpy(GET_CONTEXT_OPAQUE(context)->ck.data, ck, IPSEC_KEY_LEN);
GET_CONTEXT_OPAQUE(context)->ck.size = IPSEC_KEY_LEN;
}
/* free ipsec context */
void ipsec_context_free(ipsec_context_t** context)
{
int i = 0;
if(*context)
{
/* flush all SAs */
ipsec_flush(*context);
/* SAs */
for(i=0; i<SA_COUNT; i++)
{
ipsec_sa_free(&((*context)->SAs[i]));
}
/* free ik and ck */
IPSEC_SAFE_FREE(GET_CONTEXT_OPAQUE(*context)->ck.data);
IPSEC_SAFE_FREE(GET_CONTEXT_OPAQUE(*context)->ik.data);
/* close engine */
FwpmEngineClose0(GET_OPAQUE(*context)->engine);
FwpmEngineClose0(GET_CONTEXT_OPAQUE(*context)->engine);
/* free local/remote ip */
IPSEC_SAFE_FREE((*context)->localIP);
IPSEC_SAFE_FREE((*context)->remoteIP);
free(*context);
(*context) = 0;
}
}
#undef GET_OPAQUE
/* bound SA */
/* returns zero if succeed and nozero otherwise */
int ipsec_sa_bound(ipsec_context_t* context, ipsec_direction_t direction)
{
int i=0, j=0;
DWORD result = NO_ERROR;
IPSEC_SA0 sa;
IPSEC_SA_BUNDLE0 bundle;
IPSEC_SA_AUTH_INFORMATION0 authInfo;
HANDLE engine = GET_CONTEXT_OPAQUE(context)->engine;
memset(&sa, 0, sizeof(sa));
sa.spi = context->SAs[direction].spi;
sa.saTransformType = GET_WIN32_PROTO(context->proto);
//
// Keys padding
//
if(context->auth == iaa_hmac_sha1_96)
{
if(GET_CONTEXT_OPAQUE(context)->ik.size < IPSEC_IK_LEN)
{
for(i=GET_CONTEXT_OPAQUE(context)->ik.size; i<IPSEC_IK_LEN; i++)
{
((UINT8*)GET_CONTEXT_OPAQUE(context)->ik.data)[i] = 0x00;
}
GET_CONTEXT_OPAQUE(context)->ik.size = IPSEC_IK_LEN;
}
}
if(context->encrypt == iea_3des)
{
if(GET_CONTEXT_OPAQUE(context)->ck.size < IPSEC_CK_LEN)
{
for(i=GET_CONTEXT_OPAQUE(context)->ck.size; i<IPSEC_CK_LEN; i++)
{
((UINT8*)GET_CONTEXT_OPAQUE(context)->ck.data)[i] = ((UINT8*)GET_CONTEXT_OPAQUE(context)->ck.data)[j++];
}
GET_CONTEXT_OPAQUE(context)->ck.size = IPSEC_CK_LEN;
}
}
//
// In all case create Authentication info
//
memset(&authInfo, 0, sizeof(authInfo));
authInfo.authTransform.authTransformId = GET_WIN32_AUTH_ID(context->auth);
authInfo.authKey = GET_CONTEXT_OPAQUE(context)->ik;
if( sa.saTransformType == IPSEC_TRANSFORM_AH )
{
sa.ahInformation = &authInfo;
}
else if( sa.saTransformType == IPSEC_TRANSFORM_ESP_AUTH )
{
sa.espAuthInformation = &authInfo;
}
else if( sa.saTransformType == IPSEC_TRANSFORM_ESP_AUTH_AND_CIPHER )
{
IPSEC_SA_CIPHER_INFORMATION0 cipherInfo;
IPSEC_SA_AUTH_AND_CIPHER_INFORMATION0 cipherAuthInfo;
memset(&cipherInfo, 0, sizeof(cipherInfo));
cipherInfo.cipherTransform.cipherTransformId = GET_WIN32_ENC_ID(context->encrypt);
cipherInfo.cipherKey = GET_CONTEXT_OPAQUE(context)->ck;
memset(&cipherAuthInfo, 0, sizeof(cipherAuthInfo));
cipherAuthInfo.saAuthInformation = authInfo;
cipherAuthInfo.saCipherInformation = cipherInfo;
sa.espAuthAndCipherInformation = &cipherAuthInfo;
}
memset(&bundle, 0, sizeof(bundle));
bundle.numSAs = 1;
bundle.saList = &sa;
bundle.ipVersion = (context->ipv6) ? FWP_IP_VERSION_V6 : FWP_IP_VERSION_V4;
bundle.lifetime.lifetimeSeconds = (context->SAs[direction].lifetime > WIN32_SA_MAX_LIFETIME) ? WIN32_SA_MAX_LIFETIME : context->SAs[direction].lifetime;
/* inbound ? */
if(direction == ipd_incoming_rep || direction == ipd_incoming_req)
result = IPsecSaContextAddInbound0(engine, GET_SA_OPAQUE(context->SAs[direction])->saId, &bundle);
else
result = IPsecSaContextAddOutbound0(engine, GET_SA_OPAQUE(context->SAs[direction])->saId, &bundle);
CLEANUP_ON_ERROR(result);
CLEANUP:
return result;
}
/* get inbound spi */
DWORD getInboundSPI(ipsec_context_t* context, ipsec_direction_t direction)
{
#define CONDITIONS_COUNT 4
DWORD result = NO_ERROR;
UINT64 tmpInFilterId = 0, tmpOutFilterId = 0, tmpSaId = 0;
FWPM_FILTER0 filter;
IPSEC_TRAFFIC0 outTraffic;
IPSEC_GETSPI0 getSpi;
ipsec_sa_endpoints_t endpoint = get_endpoint(context);
HANDLE engine = GET_CONTEXT_OPAQUE(context)->engine;
FWPM_FILTER_CONDITION0 conds[CONDITIONS_COUNT];
conds[0].fieldKey = FWPM_CONDITION_IP_LOCAL_ADDRESS;
conds[0].matchType = FWP_MATCH_EQUAL;
if(context->ipv6)
{
conds[0].conditionValue.type = FWP_BYTE_ARRAY16_TYPE;
conds[0].conditionValue.byteArray16 = (FWP_BYTE_ARRAY16*)endpoint.localV6Address;
}
else
{
conds[0].conditionValue.type = FWP_UINT32;
conds[0].conditionValue.uint32 = endpoint.localV4Address;
}
conds[1].fieldKey = FWPM_CONDITION_IP_REMOTE_ADDRESS;
conds[1].matchType = FWP_MATCH_EQUAL;
if(context->ipv6)
{
conds[1].conditionValue.type = FWP_BYTE_ARRAY16_TYPE;
conds[1].conditionValue.byteArray16 = (FWP_BYTE_ARRAY16*)endpoint.remoteV6Address;
}
else
{
conds[1].conditionValue.type = FWP_UINT32;
conds[1].conditionValue.uint32 = endpoint.remoteV4Address;
}
conds[2].fieldKey = FWPM_CONDITION_IP_LOCAL_PORT;
conds[2].matchType = FWP_MATCH_EQUAL;
conds[2].conditionValue.type = FWP_UINT16;
conds[2].conditionValue.uint16 = context->SAs[direction].port;
conds[3].fieldKey = FWPM_CONDITION_IP_PROTOCOL;
conds[3].matchType = FWP_MATCH_EQUAL;
conds[3].conditionValue.type = FWP_UINT8;
conds[3].conditionValue.uint16 = GET_WIN32_TRANS(context->trans);
// Fill in the common fields shared by both filters.
memset(&filter, 0, sizeof(filter));
// For MUI compatibility, object names should be indirect strings. See
// SHLoadIndirectString for details.
filter.displayData.name = (PWSTR)TINYIPSEC_FILTER_NAME;
// Link all objects to our provider. When multiple providers are installed
// on a computer, this makes it easy to determine who added what.
filter.providerKey = (GUID*)TINYIPSEC_PROVIDER_KEY;
filter.numFilterConditions = CONDITIONS_COUNT;
filter.filterCondition = conds;
filter.action.type = FWP_ACTION_CALLOUT_TERMINATING;
//filter.weight.type = FWP_EMPTY;
// Add the inbound filter.
filter.layerKey = (context->ipv6) ? FWPM_LAYER_INBOUND_TRANSPORT_V6 : FWPM_LAYER_INBOUND_TRANSPORT_V4;
if(context->mode == ipm_tunnel)
{
filter.action.calloutKey = (context->ipv6) ? FWPM_CALLOUT_IPSEC_INBOUND_TUNNEL_V6 : FWPM_CALLOUT_IPSEC_INBOUND_TUNNEL_V4;
}
else
{
filter.action.calloutKey = (context->ipv6) ? FWPM_CALLOUT_IPSEC_INBOUND_TRANSPORT_V6 : FWPM_CALLOUT_IPSEC_INBOUND_TRANSPORT_V4;
}
result = FwpmFilterAdd0(engine, &filter, NULL, &tmpInFilterId);
CLEANUP_ON_ERROR(result);
// Add the outbound filter.
filter.layerKey = (context->ipv6) ? FWPM_LAYER_OUTBOUND_TRANSPORT_V6 : FWPM_LAYER_OUTBOUND_TRANSPORT_V4;
if(context->mode == ipm_tunnel)
{
filter.action.calloutKey = (context->ipv6) ? FWPM_CALLOUT_IPSEC_OUTBOUND_TUNNEL_V6 : FWPM_CALLOUT_IPSEC_OUTBOUND_TUNNEL_V4;
}
else
{
filter.action.calloutKey = (context->ipv6) ? FWPM_CALLOUT_IPSEC_OUTBOUND_TRANSPORT_V6 : FWPM_CALLOUT_IPSEC_OUTBOUND_TRANSPORT_V4;
}
result = FwpmFilterAdd0(engine, &filter, NULL, &tmpOutFilterId);
CLEANUP_ON_ERROR(result);
// Create the SA context using the outbound traffic descriptor.
memset(&outTraffic, 0, sizeof(outTraffic));
outTraffic.ipVersion = GET_WIN32_IPVER(context->ipv6);
if(context->ipv6)
{
memcpy(outTraffic.localV6Address, endpoint.localV6Address, 16);
memcpy(outTraffic.remoteV6Address, endpoint.remoteV6Address, 16);
}
else
{
outTraffic.localV4Address = endpoint.localV4Address;
outTraffic.remoteV4Address = endpoint.remoteV4Address;
}
outTraffic.trafficType = GET_WIN32_MODE(context->mode);
outTraffic.ipsecFilterId = tmpOutFilterId;
result = IPsecSaContextCreate0(engine, &outTraffic, NULL, &tmpSaId);
CLEANUP_ON_ERROR(result);
// Get the inbound SPI using the inbound traffic descriptor.
memset(&getSpi, 0, sizeof(getSpi));
getSpi.inboundIpsecTraffic.ipVersion = GET_WIN32_IPVER(context->ipv6);
if(context->ipv6)
{
memcpy(getSpi.inboundIpsecTraffic.localV6Address, endpoint.localV6Address, 16);
memcpy(getSpi.inboundIpsecTraffic.remoteV6Address, endpoint.remoteV6Address, 16);
}
else
{
getSpi.inboundIpsecTraffic.localV4Address = endpoint.localV4Address;
getSpi.inboundIpsecTraffic.remoteV4Address = endpoint.remoteV4Address;
}
getSpi.inboundIpsecTraffic.trafficType = GET_WIN32_MODE(context->mode);
getSpi.inboundIpsecTraffic.ipsecFilterId = tmpInFilterId;
getSpi.ipVersion = GET_WIN32_IPVER(context->ipv6);
result = IPsecSaContextGetSpi0(engine, tmpSaId, &getSpi, &(context->SAs[direction].spi));
CLEANUP_ON_ERROR(result);
//// Return the various LUIDs to the caller, so he can clean up.
GET_SA_OPAQUE(context->SAs[direction])->inFilterId = tmpInFilterId;
GET_SA_OPAQUE(context->SAs[direction])->outFilterId = tmpOutFilterId;
GET_SA_OPAQUE(context->SAs[direction])->saId = tmpSaId;
CLEANUP:
if (result != NO_ERROR)
{
DeleteSaContextAndFilters(engine, tmpInFilterId, tmpOutFilterId, tmpSaId);
}
return result;
}
/* flush all associated ipsec SAs */
void ipsec_flush(const ipsec_context_t* context)
{
HANDLE engine = NULL;
UINT32 i;
if(context && (engine = GET_CONTEXT_OPAQUE(context)->engine))
{
HANDLE enumHandle = NULL;
IPSEC_SA_DETAILS0** entries = NULL;
UINT32 numEntriesReturned = 0;
DWORD result = IPsecSaCreateEnumHandle0(engine, NULL, &enumHandle);
CLEANUP_ON_ERROR(result);
result = IPsecSaEnum0(engine, enumHandle, TINYIPSEC_SA_NUM_ENTRIES_TO_REQUEST, &entries, &numEntriesReturned);
CLEANUP_ON_ERROR(result);
for(i = 0; i<numEntriesReturned; i++)
{
IPSEC_SA_DETAILS0* entry = (entries)[i];
if( !wcscmp(entry->transportFilter->displayData.name, TINYIPSEC_FILTER_NAME))
{
result = FwpmFilterDeleteById0(engine, entry->transportFilter->filterId);
CLEANUP_ON_ERROR(result);
}
}
result = IPsecSaDestroyEnumHandle0(engine, enumHandle);
CLEANUP_ON_ERROR(result);
CLEANUP:
FwpmFreeMemory0((void**)entries);
}
}
/* Helper function to delete an SA context and the associated transport filters. */
void DeleteSaContextAndFilters(__in HANDLE engine, __in UINT64 inFilterId, __in UINT64 outFilterId, __in UINT64 saId)
{
DWORD result;
// Allow the LUIDs to be zero, so we can use this function to cleanup
// partial results.
if (saId != 0)
{
result = IPsecSaContextDeleteById0(engine, saId);
if (result != ERROR_SUCCESS)
{
// There's not much we can do if delete fails, so continue trying to
// clean up the remaining objects.
DEBUG_PRINT("IPsecSaContextDeleteById0 = 0x%08X\n", result);
}
}
if (outFilterId != 0)
{
result = FwpmFilterDeleteById0(engine, outFilterId);
if (result != ERROR_SUCCESS)
{
DEBUG_PRINT("FwpmFilterDeleteById0 = 0x%08X\n", result);
}
}
if (inFilterId != 0)
{
result = FwpmFilterDeleteById0(engine, inFilterId);
if (result != ERROR_SUCCESS)
{
DEBUG_PRINT("FwpmFilterDeleteById0 = 0x%08X\n", result);
}
}
}
ipsec_sa_endpoints_t get_endpoint(const ipsec_context_t* context)
{
#define IPV4_ADDR_LEN 4
#define IPV6_ADDR_LEN 16
ipsec_sa_endpoints_t endpoint;
void *localBuff, *remoteBuff;
if(!context->ipv6)
{
localBuff = malloc(IPV4_ADDR_LEN); memset(localBuff, NULL, IPV4_ADDR_LEN);
remoteBuff = malloc(IPV4_ADDR_LEN); memset(remoteBuff, NULL, IPV4_ADDR_LEN);
if ( inet_pton(AF_INET, context->localIP, localBuff) == 1 )
endpoint.localV4Address = ntohl ( *((ULONG*)localBuff) );
if ( inet_pton(AF_INET, context->remoteIP, remoteBuff) == 1 )
endpoint.remoteV4Address = ntohl ( *((ULONG*)remoteBuff) );
free(localBuff);
free(remoteBuff);
}
else
{
localBuff = malloc(IPV6_ADDR_LEN); memset(localBuff, NULL, IPV6_ADDR_LEN);
remoteBuff = malloc(IPV6_ADDR_LEN); memset(remoteBuff, NULL, IPV6_ADDR_LEN);
if ( inet_pton(AF_INET6, context->localIP, localBuff) == 1 )
memcpy(endpoint.localV6Address, localBuff, IPV6_ADDR_LEN);
if ( inet_pton(AF_INET6, context->remoteIP, remoteBuff) == 1 )
memcpy(endpoint.remoteV6Address, remoteBuff, IPV6_ADDR_LEN);
free(localBuff);
free(remoteBuff);
}
return endpoint;
}
#undef GET_CONTEXT_OPAQUE
#endif /* HAVE_WIN32_IPSEC */

3
trunk/tinyIPSec/tinyIPSec/src/tinyipsec_config.h
View File

@ -29,7 +29,8 @@
#define TINYIPSEC_CONFIG_H
#ifdef WIN32
#include <windows.h>
//#include <windows.h>
#include <ws2tcpip.h>
#endif
#if (defined(WIN32) || defined(__SYMBIAN32__)) && defined(TINYIPSEC_EXPORTS)

6
trunk/tinyIPSec/tinyIPSec/tinyIPSec.vcproj
View File

@ -61,7 +61,7 @@
/>
<Tool
Name="VCLinkerTool"
AdditionalDependencies="Fwpuclnt.lib"
AdditionalDependencies="Fwpuclnt.lib Ws2_32.lib"
LinkIncremental="2"
GenerateDebugInformation="true"
SubSystem="2"
@ -175,6 +175,10 @@
<Filter
Name="source"
>
<File
RelativePath=".\src\ipsec.c"
>
</File>
<File
RelativePath=".\src\ipsec.linux.c"
>