detect-engine-register_8c_source.html

/* Copyright (C) 2007-2017 Open Information Security Foundation

 *

 * You can copy, redistribute or modify this Program under the terms of

 * the GNU General Public License version 2 as published by the Free

 * Software Foundation.

 *

 * This program 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

 * version 2 along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

 * 02110-1301, USA.

 */


/**

 * \file

 *

 * \author Victor Julien <victor@inliniac.net>

 */


#include "detect-smb-ntlmssp.h"

#include "suricata-common.h"

#include "suricata.h"

#include "detect.h"

#include "flow.h"

#include "flow-private.h"

#include "flow-bit.h"


#include "detect-parse.h"

#include "detect-engine.h"

#include "detect-engine-profile.h"


#include "detect-engine-alert.h"

#include "detect-engine-siggroup.h"

#include "detect-engine-address.h"

#include "detect-engine-proto.h"

#include "detect-engine-port.h"

#include "detect-engine-mpm.h"

#include "detect-engine-iponly.h"

#include "detect-engine-threshold.h"

#include "detect-engine-prefilter.h"


#include "rust.h"


#include "detect-engine-payload.h"

#include "detect-engine-dcepayload.h"

#include "detect-dns-opcode.h"

#include "detect-dns-rcode.h"

#include "detect-dns-rrtype.h"

#include "detect-dns-query.h"

#include "detect-dns-answer-name.h"

#include "detect-dns-query-name.h"

#include "detect-tls-sni.h"

#include "detect-tls-certs.h"

#include "detect-tls-cert-fingerprint.h"

#include "detect-tls-cert-issuer.h"

#include "detect-tls-cert-subject.h"

#include "detect-tls-cert-serial.h"

#include "detect-tls-alpn.h"

#include "detect-tls-subjectaltname.h"

#include "detect-tls-random.h"

#include "detect-tls-ja3-hash.h"

#include "detect-tls-ja3-string.h"

#include "detect-tls-ja3s-hash.h"

#include "detect-tls-ja3s-string.h"

#include "detect-engine-state.h"

#include "detect-engine-analyzer.h"


#include "detect-http-cookie.h"

#include "detect-http-method.h"

#include "detect-http-ua.h"

#include "detect-http-host.h"


#include "detect-mark.h"

#include "detect-nfs-procedure.h"

#include "detect-nfs-version.h"


#include "detect-engine-event.h"

#include "decode.h"


#include "detect-config.h"


#include "detect-smb-share.h"

#include "detect-smb-version.h"


#include "detect-base64-decode.h"

#include "detect-base64-data.h"

#include "detect-ipaddr.h"

#include "detect-ipopts.h"

#include "detect-tcp-flags.h"

#include "detect-fragbits.h"

#include "detect-fragoffset.h"

#include "detect-gid.h"

#include "detect-tcp-ack.h"

#include "detect-tcp-seq.h"

#include "detect-content.h"

#include "detect-uricontent.h"

#include "detect-pcre.h"

#include "detect-depth.h"

#include "detect-nocase.h"

#include "detect-rawbytes.h"

#include "detect-bytetest.h"

#include "detect-bytemath.h"

#include "detect-bytejump.h"

#include "detect-sameip.h"

#include "detect-l3proto.h"

#include "detect-ipproto.h"

#include "detect-within.h"

#include "detect-distance.h"

#include "detect-offset.h"

#include "detect-sid.h"

#include "detect-prefilter.h"

#include "detect-priority.h"

#include "detect-classtype.h"

#include "detect-reference.h"

#include "detect-tag.h"

#include "detect-threshold.h"

#include "detect-metadata.h"

#include "detect-msg.h"

#include "detect-rev.h"

#include "detect-flow.h"

#include "detect-flow-age.h"

#include "detect-flow-pkts.h"

#include "detect-requires.h"

#include "detect-tcp-window.h"

#include "detect-ftpbounce.h"

#include "detect-isdataat.h"

#include "detect-id.h"

#include "detect-rpc.h"

#include "detect-asn1.h"

#include "detect-filename.h"

#include "detect-filestore.h"

#include "detect-filemagic.h"

#include "detect-filemd5.h"

#include "detect-filesha1.h"

#include "detect-filesha256.h"

#include "detect-filesize.h"

#include "detect-dataset.h"

#include "detect-datarep.h"

#include "detect-dsize.h"

#include "detect-flowvar.h"

#include "detect-flowint.h"

#include "detect-pktvar.h"

#include "detect-noalert.h"

#include "detect-flowbits.h"

#include "detect-hostbits.h"

#include "detect-xbits.h"

#include "detect-csum.h"

#include "detect-stream_size.h"

#include "detect-engine-sigorder.h"

#include "detect-ttl.h"

#include "detect-fast-pattern.h"

#include "detect-itype.h"

#include "detect-icode.h"

#include "detect-icmp-id.h"

#include "detect-icmp-seq.h"

#include "detect-icmpv4hdr.h"

#include "detect-dce-iface.h"

#include "detect-dce-opnum.h"

#include "detect-dce-stub-data.h"

#include "detect-urilen.h"

#include "detect-bsize.h"

#include "detect-detection-filter.h"

#include "detect-http-client-body.h"

#include "detect-http-server-body.h"

#include "detect-http-header.h"

#include "detect-http-header-names.h"

#include "detect-http-headers.h"

#include "detect-http-raw-header.h"

#include "detect-http-uri.h"

#include "detect-http-protocol.h"

#include "detect-http-start.h"

#include "detect-http-stat-msg.h"

#include "detect-http-request-line.h"

#include "detect-http-response-line.h"

#include "detect-http2.h"

#include "detect-byte-extract.h"

#include "detect-file-data.h"

#include "detect-pkt-data.h"

#include "detect-replace.h"

#include "detect-tos.h"

#include "detect-app-layer-event.h"

#include "detect-lua.h"

#include "detect-iprep.h"

#include "detect-geoip.h"

#include "detect-app-layer-protocol.h"

#include "detect-template.h"

#include "detect-template2.h"

#include "detect-tcphdr.h"

#include "detect-tcpmss.h"

#include "detect-udphdr.h"

#include "detect-icmpv6hdr.h"

#include "detect-icmpv6-mtu.h"

#include "detect-ipv4hdr.h"

#include "detect-ipv6hdr.h"

#include "detect-krb5-cname.h"

#include "detect-krb5-errcode.h"

#include "detect-krb5-msgtype.h"

#include "detect-krb5-sname.h"

#include "detect-krb5-ticket-encryption.h"

#include "detect-sip-method.h"

#include "detect-sip-uri.h"

#include "detect-target.h"

#include "detect-quic-sni.h"

#include "detect-quic-ua.h"

#include "detect-quic-version.h"

#include "detect-quic-cyu-hash.h"

#include "detect-quic-cyu-string.h"

#include "detect-ja4-hash.h"


#include "detect-bypass.h"

#include "detect-ftpdata.h"

#include "detect-engine-content-inspection.h"


#include "detect-transform-pcrexform.h"

#include "detect-transform-base64.h"


#include "util-rule-vars.h"


#include "app-layer.h"

#include "app-layer-protos.h"

#include "app-layer-htp.h"

#include "app-layer-smtp.h"

#include "detect-frame.h"

#include "detect-tls.h"

#include "detect-tls-cert-validity.h"

#include "detect-tls-version.h"

#include "detect-ssh-proto.h"

#include "detect-ssh-proto-version.h"

#include "detect-ssh-software.h"

#include "detect-ssh-software-version.h"

#include "detect-ssh-hassh.h"

#include "detect-ssh-hassh-server.h"

#include "detect-ssh-hassh-string.h"

#include "detect-ssh-hassh-server-string.h"

#include "detect-http-stat-code.h"

#include "detect-ssl-version.h"

#include "detect-ssl-state.h"

#include "detect-modbus.h"

#include "detect-dnp3.h"

#include "detect-ike-exch-type.h"

#include "detect-ike-spi.h"

#include "detect-ike-vendor.h"

#include "detect-ike-chosen-sa.h"

#include "detect-ike-key-exchange-payload-length.h"

#include "detect-ike-nonce-payload-length.h"

#include "detect-ike-nonce-payload.h"

#include "detect-ike-key-exchange-payload.h"


#include "action-globals.h"

#include "tm-threads.h"


#include "pkt-var.h"


#include "conf.h"

#include "conf-yaml-loader.h"


#include "stream-tcp.h"

#include "stream-tcp-inline.h"


#include "util-lua.h"

#include "util-var-name.h"

#include "util-classification-config.h"

#include "util-threshold-config.h"

#include "util-print.h"

#include "util-unittest.h"

#include "util-unittest-helper.h"

#include "util-debug.h"

#include "util-hashlist.h"

#include "util-privs.h"

#include "util-profiling.h"

#include "util-validate.h"

#include "util-optimize.h"

#include "util-path.h"

#include "util-mpm-ac.h"

#include "runmodes.h"


int DETECT_TBLSIZE = 0;

int DETECT_TBLSIZE_IDX = DETECT_TBLSIZE_STATIC;


static void PrintFeatureList(const SigTableElmt *e, char sep)

{

    const uint16_t flags = e->flags;


    int prev = 0;

    if (flags & SIGMATCH_NOOPT) {

        printf("No option");

        prev = 1;

    }

    if (flags & SIGMATCH_IPONLY_COMPAT) {

        if (prev == 1)

            printf("%c", sep);

        printf("compatible with IP only rule");

        prev = 1;

    }

    if (flags & SIGMATCH_DEONLY_COMPAT) {

        if (prev == 1)

            printf("%c", sep);

        printf("compatible with decoder event only rule");

        prev = 1;

    }

    if (flags & SIGMATCH_INFO_CONTENT_MODIFIER) {

        if (prev == 1)

            printf("%c", sep);

        printf("content modifier");

        prev = 1;

    }

    if (flags & SIGMATCH_INFO_STICKY_BUFFER) {

        if (prev == 1)

            printf("%c", sep);

        printf("sticky buffer");

        prev = 1;

    }

    if (e->Transform) {

        if (prev == 1)

            printf("%c", sep);

        printf("transform");

        prev = 1;

    }

    if (e->SupportsPrefilter) {

        if (prev == 1)

            printf("%c", sep);

        printf("prefilter");

        prev = 1;

    }

    if (prev == 0) {

        printf("none");

    }

}


static void SigMultilinePrint(int i, const char *prefix)

{

    if (sigmatch_table[i].desc) {

        printf("%sDescription: %s\n", prefix, sigmatch_table[i].desc);

    }

    printf("%sFeatures: ", prefix);

    PrintFeatureList(&sigmatch_table[i], ',');

    if (sigmatch_table[i].url) {

        printf("\n%sDocumentation: %s%s", prefix, GetDocURL(), sigmatch_table[i].url);

    }

    if (sigmatch_table[i].alternative) {

        printf("\n%sReplaced by: %s", prefix, sigmatch_table[sigmatch_table[i].alternative].name);

    }

    printf("\n");

}


/** \brief Check if a keyword exists. */

bool SigTableHasKeyword(const char *keyword)

{

    for (int i = 0; i < DETECT_TBLSIZE; i++) {

        if (sigmatch_table[i].flags & SIGMATCH_NOT_BUILT) {

            continue;

        }


        const char *name = sigmatch_table[i].name;


        if (name == NULL || strlen(name) == 0) {

            continue;

        }


        if (strcmp(keyword, name) == 0) {

            return true;

        }

    }


    return false;

}


int SigTableList(const char *keyword)

{

    size_t size = DETECT_TBLSIZE;

    size_t i;


    if (keyword == NULL) {

        printf("=====Supported keywords=====\n");

        for (i = 0; i < size; i++) {

            const char *name = sigmatch_table[i].name;

            if (name != NULL && strlen(name) > 0) {

                if (name[0] == '_' || strcmp(name, "template") == 0)

                    continue;


                if (sigmatch_table[i].flags & SIGMATCH_NOT_BUILT) {

                    printf("- %s (not built-in)\n", name);

                } else {

                    printf("- %s\n", name);

                }

            }

        }

    } else if (strcmp("csv", keyword) == 0) {

        printf("name;description;app layer;features;documentation\n");

        for (i = 0; i < size; i++) {

            const char *name = sigmatch_table[i].name;

            if (name != NULL && strlen(name) > 0) {

                if (sigmatch_table[i].flags & SIGMATCH_NOT_BUILT) {

                    continue;

                }

                if (name[0] == '_' || strcmp(name, "template") == 0)

                    continue;


                printf("%s;", name);

                if (sigmatch_table[i].desc) {

                    printf("%s", sigmatch_table[i].desc);

                }

                /* Build feature */

                printf(";Unset;"); // this used to be alproto

                PrintFeatureList(&sigmatch_table[i], ':');

                printf(";");

                if (sigmatch_table[i].url) {

                    printf("%s%s", GetDocURL(), sigmatch_table[i].url);

                }

                printf(";");

                printf("\n");

            }

        }

    } else if (strcmp("all", keyword) == 0) {

        for (i = 0; i < size; i++) {

            const char *name = sigmatch_table[i].name;

            if (name != NULL && strlen(name) > 0) {

                if (name[0] == '_' || strcmp(name, "template") == 0)

                    continue;

                printf("%s:\n", sigmatch_table[i].name);

                SigMultilinePrint(i, "\t");

            }

        }

    } else {

        for (i = 0; i < size; i++) {

            if ((sigmatch_table[i].name != NULL) &&

                strcmp(sigmatch_table[i].name, keyword) == 0) {

                printf("= %s =\n", sigmatch_table[i].name);

                if (sigmatch_table[i].flags & SIGMATCH_NOT_BUILT) {

                    printf("Not built-in\n");

                    return TM_ECODE_FAILED;

                }

                SigMultilinePrint(i, "");

                return TM_ECODE_DONE;

            }

        }

        printf("Non existing keyword\n");

        return TM_ECODE_FAILED;

    }

    return TM_ECODE_DONE;

}


static void DetectFileHandlerRegister(void)

{

    for (int i = 0; i < DETECT_TBLSIZE_STATIC; i++) {

        if (filehandler_table[i].name)

            DetectFileRegisterFileProtocols(&filehandler_table[i]);

    }

}


void SigTableCleanup(void)

{

    if (sigmatch_table != NULL) {

        SCFree(sigmatch_table);

        sigmatch_table = NULL;

        DETECT_TBLSIZE = 0;

    }

}


void SigTableInit(void)

{

    if (sigmatch_table == NULL) {

        DETECT_TBLSIZE = DETECT_TBLSIZE_STATIC + DETECT_TBLSIZE_STEP;

        sigmatch_table = SCCalloc(DETECT_TBLSIZE, sizeof(SigTableElmt));

        if (sigmatch_table == NULL) {

            DETECT_TBLSIZE = 0;

            FatalError("Could not allocate sigmatch_table");

        }

    }

}


void SigTableSetup(void)

{

    DetectSidRegister();

    DetectPriorityRegister();

    DetectPrefilterRegister();

    DetectRevRegister();

    DetectClasstypeRegister();

    DetectReferenceRegister();

    DetectTagRegister();

    DetectThresholdRegister();

    DetectMetadataRegister();

    DetectMsgRegister();

    DetectAckRegister();

    DetectSeqRegister();

    DetectContentRegister();

    DetectUricontentRegister();


    /* NOTE: the order of these currently affects inspect

     * engine registration order and ultimately the order

     * of inspect engines in the rule. Which in turn affects

     * state keeping */

    DetectHttpUriRegister();

    DetectHttpRequestLineRegister();

    DetectHttpClientBodyRegister();

    DetectHttpResponseLineRegister();

    DetectHttpServerBodyRegister();

    DetectHttpHeaderRegister();

    DetectHttpRequestHeaderRegister();

    DetectHttpResponseHeaderRegister();

    DetectHttpHeaderNamesRegister();

    DetectHttpHeadersRegister();

    DetectHttpProtocolRegister();

    DetectHttpStartRegister();

    DetectHttpRawHeaderRegister();

    DetectHttpMethodRegister();

    DetectHttpCookieRegister();


    DetectFilenameRegister();

    DetectFilestoreRegister();

    DetectFilemagicRegister();

    DetectFileMd5Register();

    DetectFileSha1Register();

    DetectFileSha256Register();

    DetectFilesizeRegister();


    DetectHttpUARegister();

    DetectHttpHHRegister();


    DetectHttpStatMsgRegister();

    DetectHttpStatCodeRegister();

    DetectHttp2Register();


    DetectDnsQueryRegister();

    DetectDnsOpcodeRegister();

    DetectDnsRcodeRegister();

    DetectDnsRrtypeRegister();

    DetectDnsAnswerNameRegister();

    DetectDnsQueryNameRegister();

    DetectModbusRegister();

    DetectDNP3Register();


    DetectIkeExchTypeRegister();

    DetectIkeSpiRegister();

    DetectIkeVendorRegister();

    DetectIkeChosenSaRegister();

    DetectIkeKeyExchangePayloadLengthRegister();

    DetectIkeNoncePayloadLengthRegister();

    DetectIkeNonceRegister();

    DetectIkeKeyExchangeRegister();


    DetectTlsSniRegister();

    DetectTlsIssuerRegister();

    DetectTlsSubjectRegister();

    DetectTlsSerialRegister();

    DetectTlsFingerprintRegister();

    DetectTlsCertsRegister();

    DetectTlsCertChainLenRegister();

    DetectTlsSubjectAltNameRegister();

    DetectTlsAlpnRegister();

    DetectTlsRandomRegister();


    DetectTlsJa3HashRegister();

    DetectTlsJa3StringRegister();

    DetectTlsJa3SHashRegister();

    DetectTlsJa3SStringRegister();


    DetectAppLayerEventRegister();

    /* end of order dependent regs */


    DetectFrameRegister();


    DetectPcreRegister();

    DetectDepthRegister();

    DetectNocaseRegister();

    DetectRawbytesRegister();

    DetectBytetestRegister();

    DetectBytejumpRegister();

    DetectBytemathRegister();

    DetectSameipRegister();

    DetectGeoipRegister();

    DetectL3ProtoRegister();

    DetectIPProtoRegister();

    DetectWithinRegister();

    DetectDistanceRegister();

    DetectOffsetRegister();

    DetectReplaceRegister();

    DetectFlowRegister();

    DetectFlowAgeRegister();

    DetectFlowPktsToClientRegister();

    DetectFlowPktsToServerRegister();

    DetectFlowBytesToClientRegister();

    DetectFlowBytesToServerRegister();

    DetectRequiresRegister();

    DetectWindowRegister();

    DetectRpcRegister();

    DetectFtpbounceRegister();

    DetectFtpdataRegister();

    DetectIsdataatRegister();

    DetectIdRegister();

    DetectDsizeRegister();

    DetectDatasetRegister();

    DetectDatarepRegister();

    DetectFlowvarRegister();

    DetectFlowintRegister();

    DetectPktvarRegister();

    DetectNoalertRegister();

    DetectFlowbitsRegister();

    DetectHostbitsRegister();

    DetectXbitsRegister();

    DetectEngineEventRegister();

    DetectIpOptsRegister();

    DetectFlagsRegister();

    DetectFragBitsRegister();

    DetectFragOffsetRegister();

    DetectGidRegister();

    DetectMarkRegister();

    DetectCsumRegister();

    DetectStreamSizeRegister();

    DetectTtlRegister();

    DetectTosRegister();

    DetectFastPatternRegister();

    DetectITypeRegister();

    DetectICodeRegister();

    DetectIcmpIdRegister();

    DetectIcmpSeqRegister();

    DetectIcmpv4HdrRegister();

    DetectDceIfaceRegister();

    DetectDceOpnumRegister();

    DetectDceStubDataRegister();

    DetectSmbNamedPipeRegister();

    DetectSmbShareRegister();

    DetectSmbNtlmsspUserRegister();

    DetectSmbNtlmsspDomainRegister();

    DetectSmbVersionRegister();

    DetectTlsRegister();

    DetectTlsValidityRegister();

    DetectTlsVersionRegister();

    DetectNfsProcedureRegister();

    DetectNfsVersionRegister();

    DetectUrilenRegister();

    DetectBsizeRegister();

    DetectDetectionFilterRegister();

    DetectAsn1Register();

    DetectSshProtocolRegister();

    DetectSshVersionRegister();

    DetectSshSoftwareRegister();

    DetectSshSoftwareVersionRegister();

    DetectSshHasshRegister();

    DetectSshHasshServerRegister();

    DetectSshHasshStringRegister();

    DetectSshHasshServerStringRegister();

    DetectSslStateRegister();

    DetectSslVersionRegister();

    DetectByteExtractRegister();

    DetectFiledataRegister();

    DetectPktDataRegister();

    DetectLuaRegister();

    DetectIPRepRegister();

    DetectAppLayerProtocolRegister();

    DetectBase64DecodeRegister();

    DetectBase64DataRegister();

    DetectTemplateRegister();

    DetectTemplate2Register();

    DetectTcphdrRegister();

    DetectUdphdrRegister();

    DetectTcpmssRegister();

    DetectICMPv6hdrRegister();

    DetectICMPv6mtuRegister();

    DetectIPAddrBufferRegister();

    DetectIpv4hdrRegister();

    DetectIpv6hdrRegister();

    DetectKrb5CNameRegister();

    DetectKrb5ErrCodeRegister();

    DetectKrb5MsgTypeRegister();

    DetectKrb5SNameRegister();

    DetectKrb5TicketEncryptionRegister();

    DetectSipMethodRegister();

    DetectSipUriRegister();

    DetectTargetRegister();

    DetectQuicSniRegister();

    DetectQuicUaRegister();

    DetectQuicVersionRegister();

    DetectQuicCyuHashRegister();

    DetectQuicCyuStringRegister();

    DetectJa4HashRegister();


    DetectBypassRegister();

    DetectConfigRegister();


    DetectTransformCompressWhitespaceRegister();

    DetectTransformStripWhitespaceRegister();

    DetectTransformStripPseudoHeadersRegister();

    DetectTransformMd5Register();

    DetectTransformSha1Register();

    DetectTransformSha256Register();

    DetectTransformDotPrefixRegister();

    DetectTransformPcrexformRegister();

    DetectTransformUrlDecodeRegister();

    DetectTransformXorRegister();

    DetectTransformToLowerRegister();

    DetectTransformToUpperRegister();

    DetectTransformHeaderLowercaseRegister();

    DetectTransformFromBase64DecodeRegister();


    DetectFileHandlerRegister();


    ScDetectSNMPRegister();

    ScDetectDHCPRegister();

    ScDetectWebsocketRegister();

    ScDetectEnipRegister();

    ScDetectMqttRegister();

    ScDetectRfbRegister();

    ScDetectSipRegister();

    ScDetectTemplateRegister();


    /* close keyword registration */

    DetectBufferTypeCloseRegistration();

}


#ifdef UNITTESTS

void SigTableRegisterTests(void)

{

    /* register the tests */

    for (int i = 0; i < DETECT_TBLSIZE; i++) {

        g_ut_modules++;

        if (sigmatch_table[i].RegisterTests != NULL) {

            sigmatch_table[i].RegisterTests();

            g_ut_covered++;

        } else {

            SCLogDebug("detection plugin %s has no unittest "

                   "registration function.", sigmatch_table[i].name);


            if (coverage_unittests)

                SCLogWarning("detection plugin %s has no unittest "

                             "registration function.",

                        sigmatch_table[i].name);

        }

    }

}

#endif