560 lines
18 KiB
C
560 lines
18 KiB
C
/*
|
|
* Copyright (C) 2009 Mamadou Diop.
|
|
*
|
|
* Contact: Mamadou Diop <diopmamadou@yahoo.fr>
|
|
*
|
|
* This file is part of Open Source Doubango Framework.
|
|
*
|
|
* 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with DOUBANGO.
|
|
*
|
|
*/
|
|
#include "ipsec.h"
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
|
|
#include <Fwpmu.h>
|
|
|
|
#if HAVE_WIN32_IPSEC
|
|
|
|
#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
|
|
|
|
#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_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_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_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_CONTEXT_OPAQUE(*context)->engine);
|
|
|
|
/* free local/remote ip */
|
|
IPSEC_SAFE_FREE((*context)->localIP);
|
|
IPSEC_SAFE_FREE((*context)->remoteIP);
|
|
|
|
free(*context);
|
|
(*context) = 0;
|
|
}
|
|
}
|
|
|
|
/* 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 == ipd_outgoing_rep ? ipd_incoming_req : ipd_incoming_rep])->saId, &bundle);
|
|
DEBUG_PRINT("saId=%d\n", GET_SA_OPAQUE(context->SAs[direction])->saId);
|
|
}
|
|
|
|
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;
|
|
DEBUG_PRINT("tmpSaId=%d\n", 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 */ |