mirror of https://github.com/OISF/suricata
detect/ssh: move ssh.software to rust
Adds helper function SCDetectHelperBufferProgressMpmRegister on the waypull/14639/head
Philippe Antoine
8 months ago
committed by
Victor Julien
parent
c0d6747e82
commit
ea8ac2a02a
@ -1,119 +0,0 @@
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/* Copyright (C) 2007-2016 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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* \ingroup sshlayer
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*
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* @{
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*/
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/**
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* \file
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*
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* \author Victor Julien <victor@inliniac.net>
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*
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* Implements support ssh_software sticky buffer
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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-state.h"
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#include "detect-engine-prefilter.h"
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#include "detect-engine-content-inspection.h"
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#include "app-layer.h"
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#include "app-layer-parser.h"
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#include "app-layer-ssh.h"
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#include "detect-ssh-software.h"
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#include "rust.h"
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#define KEYWORD_NAME "ssh.software"
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#define KEYWORD_NAME_LEGACY "ssh_software"
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#define KEYWORD_DOC "ssh-keywords.html#ssh-software"
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#define BUFFER_NAME "ssh_software"
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#define BUFFER_DESC "ssh software field"
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static int g_buffer_id = 0;
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static InspectionBuffer *GetSshData(DetectEngineThreadCtx *det_ctx,
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const DetectEngineTransforms *transforms, Flow *_f,
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const uint8_t flow_flags, void *txv, const int list_id)
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{
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SCEnter();
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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 *software = NULL;
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uint32_t b_len = 0;
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if (SCSshTxGetSoftware(txv, &software, &b_len, flow_flags) != 1)
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return NULL;
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if (software == NULL || b_len == 0) {
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SCLogDebug("SSH software version not set");
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return NULL;
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}
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InspectionBufferSetupAndApplyTransforms(
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det_ctx, list_id, buffer, software, b_len, transforms);
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}
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return buffer;
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}
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static int DetectSshSoftwareSetup(DetectEngineCtx *de_ctx, Signature *s, const char *arg)
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{
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if (SCDetectBufferSetActiveList(de_ctx, s, g_buffer_id) < 0)
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return -1;
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if (SCDetectSignatureSetAppProto(s, ALPROTO_SSH) < 0)
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return -1;
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return 0;
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}
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void DetectSshSoftwareRegister(void)
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{
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sigmatch_table[DETECT_SSH_SOFTWARE].name = KEYWORD_NAME;
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sigmatch_table[DETECT_SSH_SOFTWARE].alias = KEYWORD_NAME_LEGACY;
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sigmatch_table[DETECT_SSH_SOFTWARE].desc = BUFFER_NAME " sticky buffer";
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sigmatch_table[DETECT_SSH_SOFTWARE].url = "/rules/" KEYWORD_DOC;
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sigmatch_table[DETECT_SSH_SOFTWARE].Setup = DetectSshSoftwareSetup;
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sigmatch_table[DETECT_SSH_SOFTWARE].flags |= SIGMATCH_INFO_STICKY_BUFFER | SIGMATCH_NOOPT;
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DetectAppLayerMpmRegister(BUFFER_NAME, SIG_FLAG_TOSERVER, 2, PrefilterGenericMpmRegister,
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GetSshData, ALPROTO_SSH, SshStateBannerDone),
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DetectAppLayerMpmRegister(BUFFER_NAME, SIG_FLAG_TOCLIENT, 2,
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PrefilterGenericMpmRegister, GetSshData, ALPROTO_SSH, SshStateBannerDone),
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DetectAppLayerInspectEngineRegister(BUFFER_NAME, ALPROTO_SSH, SIG_FLAG_TOSERVER,
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SshStateBannerDone, DetectEngineInspectBufferGeneric, GetSshData);
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DetectAppLayerInspectEngineRegister(BUFFER_NAME, ALPROTO_SSH, SIG_FLAG_TOCLIENT,
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SshStateBannerDone, DetectEngineInspectBufferGeneric, GetSshData);
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DetectBufferTypeSetDescriptionByName(BUFFER_NAME, BUFFER_DESC);
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g_buffer_id = DetectBufferTypeGetByName(BUFFER_NAME);
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}
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@ -1,29 +0,0 @@
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/* Copyright (C) 2007-2016 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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* \file
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*
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* \author Victor Julien <victor@inliniac.net>
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*/
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#ifndef SURICATA_DETECT_SSH_SOFTWARE_H
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#define SURICATA_DETECT_SSH_SOFTWARE_H
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void DetectSshSoftwareRegister(void);
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#endif /* SURICATA_DETECT_SSH_SOFTWARE_H */
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