mirror of https://github.com/OISF/suricata
Philippe Antoine
8 months ago
committed by
Victor Julien
parent
28ba93e60c
commit
23032ebc65
@ -1,168 +0,0 @@
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/* Copyright (C) 2020 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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*
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* \author Frank Honza <frank.honza@dcso.de>
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*/
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#include "suricata-common.h"
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#include "threads.h"
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#include "decode.h"
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#include "detect.h"
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#include "detect-parse.h"
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#include "detect-engine.h"
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#include "detect-engine-buffer.h"
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#include "detect-engine-mpm.h"
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#include "detect-engine-prefilter.h"
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#include "detect-urilen.h"
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#include "flow.h"
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#include "flow-var.h"
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#include "flow-util.h"
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#include "util-debug.h"
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#include "util-unittest.h"
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#include "util-unittest-helper.h"
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#include "util-spm.h"
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#include "app-layer.h"
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#include "app-layer-parser.h"
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#include "detect-ike-spi.h"
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#include "stream-tcp.h"
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#include "rust.h"
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#include "app-layer-ike.h"
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#include "rust-bindings.h"
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#define KEYWORD_NAME_INITIATOR "ike.init_spi"
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#define KEYWORD_DOC_INITIATOR "ike-keywords.html#ike-init_spi";
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#define BUFFER_NAME_INITIATOR "ike.init_spi"
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#define BUFFER_DESC_INITIATOR "ike init spi"
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#define KEYWORD_NAME_RESPONDER "ike.resp_spi"
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#define KEYWORD_DOC_RESPONDER "ike-keywords.html#ike-resp_spi";
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#define BUFFER_NAME_RESPONDER "ike.resp_spi"
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#define BUFFER_DESC_RESPONDER "ike resp spi"
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static int g_buffer_initiator_id = 0;
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static int g_buffer_responder_id = 0;
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static int DetectSpiInitiatorSetup(DetectEngineCtx *de_ctx, Signature *s, const char *str)
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{
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if (SCDetectBufferSetActiveList(de_ctx, s, g_buffer_initiator_id) < 0)
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return -1;
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if (SCDetectSignatureSetAppProto(s, ALPROTO_IKE) < 0)
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return -1;
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return 0;
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}
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static int DetectSpiResponderSetup(DetectEngineCtx *de_ctx, Signature *s, const char *str)
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{
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if (SCDetectBufferSetActiveList(de_ctx, s, g_buffer_responder_id) < 0)
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return -1;
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if (SCDetectSignatureSetAppProto(s, ALPROTO_IKE) < 0)
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return -1;
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return 0;
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}
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static InspectionBuffer *GetInitiatorData(DetectEngineThreadCtx *det_ctx,
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const DetectEngineTransforms *transforms, Flow *_f, const uint8_t _flow_flags, void *txv,
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const int list_id)
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{
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InspectionBuffer *buffer = InspectionBufferGet(det_ctx, list_id);
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if (buffer->inspect == NULL) {
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const uint8_t *b = NULL;
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uint32_t b_len = 0;
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if (SCIkeStateGetSpiInitiator(txv, &b, &b_len) != 1)
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return NULL;
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if (b == NULL || b_len == 0)
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return NULL;
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InspectionBufferSetupAndApplyTransforms(det_ctx, list_id, buffer, b, b_len, transforms);
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}
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return buffer;
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}
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static InspectionBuffer *GetResponderData(DetectEngineThreadCtx *det_ctx,
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const DetectEngineTransforms *transforms, Flow *_f, const uint8_t _flow_flags, void *txv,
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const int list_id)
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{
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InspectionBuffer *buffer = InspectionBufferGet(det_ctx, list_id);
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if (buffer->inspect == NULL) {
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const uint8_t *b = NULL;
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uint32_t b_len = 0;
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if (SCIkeStateGetSpiResponder(txv, &b, &b_len) != 1)
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return NULL;
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if (b == NULL || b_len == 0)
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return NULL;
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InspectionBufferSetupAndApplyTransforms(det_ctx, list_id, buffer, b, b_len, transforms);
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}
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return buffer;
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}
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void DetectIkeSpiRegister(void)
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{
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// register initiator
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sigmatch_table[DETECT_IKE_SPI_INITIATOR].name = KEYWORD_NAME_INITIATOR;
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sigmatch_table[DETECT_IKE_SPI_INITIATOR].url =
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"/rules/" KEYWORD_DOC_INITIATOR sigmatch_table[DETECT_IKE_SPI_INITIATOR].desc =
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"sticky buffer to match on the IKE spi initiator";
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sigmatch_table[DETECT_IKE_SPI_INITIATOR].Setup = DetectSpiInitiatorSetup;
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sigmatch_table[DETECT_IKE_SPI_INITIATOR].flags |= SIGMATCH_NOOPT | SIGMATCH_INFO_STICKY_BUFFER;
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DetectAppLayerInspectEngineRegister(BUFFER_NAME_INITIATOR, ALPROTO_IKE, SIG_FLAG_TOSERVER, 1,
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DetectEngineInspectBufferGeneric, GetInitiatorData);
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DetectAppLayerMpmRegister(BUFFER_NAME_INITIATOR, SIG_FLAG_TOSERVER, 1,
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PrefilterGenericMpmRegister, GetInitiatorData, ALPROTO_IKE, 1);
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DetectBufferTypeSetDescriptionByName(BUFFER_NAME_INITIATOR, BUFFER_DESC_INITIATOR);
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g_buffer_initiator_id = DetectBufferTypeGetByName(BUFFER_NAME_INITIATOR);
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SCLogDebug("registering " BUFFER_NAME_INITIATOR " rule option");
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// register responder
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sigmatch_table[DETECT_IKE_SPI_RESPONDER].name = KEYWORD_NAME_RESPONDER;
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sigmatch_table[DETECT_IKE_SPI_RESPONDER].url =
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"/rules/" KEYWORD_DOC_RESPONDER sigmatch_table[DETECT_IKE_SPI_RESPONDER].desc =
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"sticky buffer to match on the IKE spi responder";
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sigmatch_table[DETECT_IKE_SPI_RESPONDER].Setup = DetectSpiResponderSetup;
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sigmatch_table[DETECT_IKE_SPI_RESPONDER].flags |= SIGMATCH_NOOPT | SIGMATCH_INFO_STICKY_BUFFER;
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DetectAppLayerInspectEngineRegister(BUFFER_NAME_RESPONDER, ALPROTO_IKE, SIG_FLAG_TOCLIENT, 1,
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DetectEngineInspectBufferGeneric, GetResponderData);
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DetectAppLayerMpmRegister(BUFFER_NAME_RESPONDER, SIG_FLAG_TOCLIENT, 1,
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PrefilterGenericMpmRegister, GetResponderData, ALPROTO_IKE, 1);
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DetectBufferTypeSetDescriptionByName(BUFFER_NAME_RESPONDER, BUFFER_DESC_RESPONDER);
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g_buffer_responder_id = DetectBufferTypeGetByName(BUFFER_NAME_RESPONDER);
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SCLogDebug("registering " BUFFER_NAME_RESPONDER " rule option");
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}
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@ -1,28 +0,0 @@
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/* Copyright (C) 2020 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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*
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* \author Frank Honza <frank.honza@dcso.de>
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*/
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#ifndef SURICATA_DETECT_IKE_SPI_H
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#define SURICATA_DETECT_IKE_SPI_H
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void DetectIkeSpiRegister(void);
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#endif /* SURICATA_DETECT_IKE_SPI_H */
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