%{ /* -*- C++ -*- */ # include # include # include # include # include "parser/driver.h" # include "seclang-parser.hh" // Work around an incompatibility in flex (at least versions // 2.5.31 through 2.5.33): it generates code that does // not conform to C89. See Debian bug 333231 // . # undef yywrap # define yywrap() 1 // The location of the current token. static yy::location loc; %} %option noyywrap nounput batch debug noinput ACTION (?i:accuracy|allow|append|auditlog|block|capture|chain|ctl|deny|deprecatevar|drop|exec|expirevar|id:[0-9]+|initcol|log|logdata|maturity|msg|multiMatch|noauditlog|nolog|pass|pause|phase:[0-9]+|prepend|proxy|redirect:[A-z0-9_\|\&\:\/\/\.]+|rev|sanitiseArg|sanitiseMatched|sanitiseMatchedBytes|sanitiseRequestHeader|sanitiseResponseHeader|setuid|setrsc|setsid|setenv|setvar|skip|skipAfter|status:[0-9]+|tag|ver|xmlns|t) ACTION_SEVERITY (?i:severity:[0-9]+|severity:'[0-9]+'|severity:(EMERGENCY|ALERT|CRITICAL|ERROR|WARNING|NOTICE|INFO|DEBUG)|severity:'(EMERGENCY|ALERT|CRITICAL|ERROR|WARNING|NOTICE|INFO|DEBUG)') DIRECTIVE SecRule CONFIG_DIRECTIVE SecRequestBodyLimitAction|SecRequestBodyNoFilesLimit|SecRequestBodyInMemoryLimit|SecPcreMatchLimitRecursion|SecPcreMatchLimit|SecResponseBodyMimeType|SecResponseBodyLimitAction|SecTmpDir|SecDataDir|SecArgumentSeparator|SecCookieFormat|SecStatusEngine CONFIG_DIR_REQ_BODY_LIMIT (?i:SecRequestBodyLimit) CONFIG_DIR_RES_BODY_LIMIT (?i:SecResponseBodyLimit) CONFIG_DIR_GEO_DB (?i:SecGeoLookupDb) CONFIG_DIR_RULE_ENG SecRuleEngine CONFIG_DIR_REQ_BODY SecRequestBodyAccess CONFIG_DIR_RES_BODY SecResponseBodyAccess CONFIG_DIR_AUDIT_DIR_MOD (?i:SecAuditLogDirMode) CONFIG_DIR_AUDIT_DIR (?i:SecAuditLogStorageDir) CONFIG_DIR_AUDIT_ENG (?i:SecAuditEngine) CONFIG_DIR_AUDIT_FLE_MOD (?i:SecAuditLogFileMode) CONFIG_DIR_AUDIT_LOG2 (?i:SecAuditLog2) CONFIG_DIR_AUDIT_LOG_P (?i:SecAuditLogParts) CONFIG_DIR_AUDIT_LOG (?i:SecAuditLog) CONFIG_DIR_AUDIT_STS (?i:SecAuditLogRelevantStatus) CONFIG_DIR_AUDIT_TPE (?i:SecAuditLogType) CONFIG_DIR_DEBUG_LOG SecDebugLog CONFIG_DIR_DEBUG_LVL SecDebugLogLevel CONFIG_COMPONENT_SIG (?i:SecComponentSignature) CONFIG_INCLUDE Include DICT_ELEMENT [A-Za-z_]+ OPERATOR (?i:(?:@inspectFile|@fuzzyHash|@validateByteRange|@validateDTD|@validateHash|@validateSchema|@verifyCC|@verifyCPF|@verifySSN|@gsbLookup|@rsub)|(?:\!{0,1})(?:@within|@containsWord|@contains|@endsWith|@eq|@ge|@gt|@ipMatchF|@ipMatch|@ipMatchFromFile|@le|@lt|@pmf|@pm|@pmFromFile|@rbl|@rx|@streq|@strmatch|@beginsWith)) OPERATORNOARG (?i:@detectSQLi|@detectXSS|@geoLookup|@validateUrlEncoding|@validateUtf8Encoding) TRANSFORMATION t:(lowercase|urlDecodeUni|urlDecode|none|compressWhitespace|removeWhitespace|replaceNulls|removeNulls|htmlEntityDecode|jsDecode|cssDecode|trim) VARIABLE (?i:SERVER_PORT|SERVER_ADDR|REMOTE_PORT|REMOTE_HOST|MULTIPART_STRICT_ERROR|PATH_INFO|MULTIPART_NAME|MULTIPART_FILENAME|MULTIPART_CRLF_LF_LINES|MATCHED_VAR_NAME|MATCHED_VARS_NAMES|MATCHED_VAR|MATCHED_VARS|INBOUND_DATA_ERROR|OUTBOUND_DATA_ERROR|FULL_REQUEST|FILES|AUTH_TYPE|ARGS_NAMES|ARGS|QUERY_STRING|REMOTE_ADDR|REQUEST_BASENAME|REQUEST_BODY|REQUEST_COOKIES_NAMES|REQUEST_COOKIES|REQUEST_FILENAME|REQUEST_HEADERS_NAMES|REQUEST_HEADERS|REQUEST_METHOD|REQUEST_PROTOCOL|REQUEST_URI|RESPONSE_BODY|RESPONSE_CONTENT_LENGTH|RESPONSE_CONTENT_TYPE|RESPONSE_HEADERS_NAMES|RESPONSE_HEADERS|RESPONSE_PROTOCOL|RESPONSE_STATUS|TX|GEO) RUN_TIME_VAR_DUR (?i:DURATION) RUN_TIME_VAR_ENV (?i:ENV) RUN_TIME_VAR_BLD (?i:MODSEC_BUILD) RUN_TIME_VAR_HSV (?i:HIGHEST_SEVERITY) RUN_TIME_VAR_TIME (?i:TIME) RUN_TIME_VAR_TIME_DAY (?i:TIME_DAY) RUN_TIME_VAR_TIME_EPOCH (?i:TIME_EPOCH) RUN_TIME_VAR_TIME_HOUR (?i:TIME_HOUR) RUN_TIME_VAR_TIME_MIN (?i:TIME_MIN) RUN_TIME_VAR_TIME_MON (?i:TIME_MON) RUN_TIME_VAR_TIME_SEC (?i:TIME_SEC) RUN_TIME_VAR_TIME_WDAY (?i:TIME_WDAY) RUN_TIME_VAR_TIME_YEAR (?i:TIME_YEAR) VARIABLENOCOLON (?i:REQBODY_ERROR|MULTIPART_STRICT_ERROR|MULTIPART_UNMATCHED_BOUNDARY|REMOTE_ADDR|REQUEST_LINE) CONFIG_VALUE_ON On CONFIG_VALUE_OFF Off CONFIG_VALUE_DETC DetectOnly CONFIG_VALUE_SERIAL Serial CONFIG_VALUE_PARALLEL Parallel CONFIG_VALUE_RELEVANT_ONLY RelevantOnly CONFIG_VALUE_PATH [A-Za-z_/\.]+ AUDIT_PARTS [ABCDEFHJKZ]+ CONFIG_VALUE_NUMBER [0-9]+ FREE_TEXT [^\"]+ FREE_TEXT_NEW_LINE [^\"|\n]+ %{ // Code run each time a pattern is matched. # define YY_USER_ACTION loc.columns (yyleng); %} %% %{ // Code run each time yylex is called. loc.step (); %} {DIRECTIVE} { return yy::seclang_parser::make_DIRECTIVE(yytext, loc); } {TRANSFORMATION} { return yy::seclang_parser::make_TRANSFORMATION(yytext, loc); } {CONFIG_DIR_RULE_ENG} { return yy::seclang_parser::make_CONFIG_DIR_RULE_ENG(yytext, loc); } {CONFIG_DIR_RES_BODY} { return yy::seclang_parser::make_CONFIG_DIR_RES_BODY(yytext, loc); } {CONFIG_DIR_REQ_BODY} { return yy::seclang_parser::make_CONFIG_DIR_REQ_BODY(yytext, loc); } %{ /* Audit log entries */ %} {CONFIG_DIR_AUDIT_DIR}[ ]{CONFIG_VALUE_PATH} { return yy::seclang_parser::make_CONFIG_DIR_AUDIT_DIR(strchr(yytext, ' ') + 1, loc); } {CONFIG_DIR_AUDIT_DIR_MOD}[ ]{CONFIG_VALUE_NUMBER} { return yy::seclang_parser::make_CONFIG_DIR_AUDIT_DIR_MOD(strchr(yytext, ' ') + 1, loc); } {CONFIG_DIR_AUDIT_ENG} { return yy::seclang_parser::make_CONFIG_DIR_AUDIT_ENG(yytext, loc); } {CONFIG_DIR_AUDIT_FLE_MOD}[ ]{CONFIG_VALUE_NUMBER} { return yy::seclang_parser::make_CONFIG_DIR_AUDIT_FLE_MOD(strchr(yytext, ' ') + 1, loc); } {CONFIG_DIR_AUDIT_LOG2}[ ]{CONFIG_VALUE_PATH} { return yy::seclang_parser::make_CONFIG_DIR_AUDIT_LOG2(strchr(yytext, ' ') + 1, loc); } {CONFIG_DIR_AUDIT_LOG}[ ]{CONFIG_VALUE_PATH} { return yy::seclang_parser::make_CONFIG_DIR_AUDIT_LOG(strchr(yytext, ' ') + 1, loc); } {CONFIG_DIR_AUDIT_LOG_P}[ ]{AUDIT_PARTS} { return yy::seclang_parser::make_CONFIG_DIR_AUDIT_LOG_P(strchr(yytext, ' ') + 1, loc); } {CONFIG_DIR_AUDIT_STS}[ ]["]{FREE_TEXT}["] { return yy::seclang_parser::make_CONFIG_DIR_AUDIT_STS(strchr(yytext, ' ') + 1, loc); } {CONFIG_DIR_AUDIT_TPE} { return yy::seclang_parser::make_CONFIG_DIR_AUDIT_TPE(yytext, loc); } %{ /* Debug log entries */ %} {CONFIG_DIR_DEBUG_LOG}[ ]{CONFIG_VALUE_PATH} { return yy::seclang_parser::make_CONFIG_DIR_DEBUG_LOG(strchr(yytext, ' ') + 1, loc); } {CONFIG_DIR_DEBUG_LVL}[ ]{CONFIG_VALUE_NUMBER} { return yy::seclang_parser::make_CONFIG_DIR_DEBUG_LVL(strchr(yytext, ' ') + 1, loc); } %{ /* Variables */ %} {VARIABLE}:?{DICT_ELEMENT}? { return yy::seclang_parser::make_VARIABLE(yytext, loc); } {RUN_TIME_VAR_DUR} { return yy::seclang_parser::make_RUN_TIME_VAR_DUR(yytext, loc); } {RUN_TIME_VAR_ENV}:?{DICT_ELEMENT}? { return yy::seclang_parser::make_RUN_TIME_VAR_ENV(yytext, loc); } {RUN_TIME_VAR_BLD} { return yy::seclang_parser::make_RUN_TIME_VAR_BLD(yytext, loc); } {RUN_TIME_VAR_HSV} { return yy::seclang_parser::make_RUN_TIME_VAR_HSV(yytext, loc); } %{ /* Variables: TIME */ %} {RUN_TIME_VAR_TIME} { return yy::seclang_parser::make_RUN_TIME_VAR_TIME(yytext, loc); } {RUN_TIME_VAR_TIME_DAY} { return yy::seclang_parser::make_RUN_TIME_VAR_TIME_DAY(yytext, loc); } {RUN_TIME_VAR_TIME_EPOCH} { return yy::seclang_parser::make_RUN_TIME_VAR_TIME_EPOCH(yytext, loc); } {RUN_TIME_VAR_TIME_HOUR} { return yy::seclang_parser::make_RUN_TIME_VAR_TIME_HOUR(yytext, loc); } {RUN_TIME_VAR_TIME_MIN} { return yy::seclang_parser::make_RUN_TIME_VAR_TIME_MIN(yytext, loc); } {RUN_TIME_VAR_TIME_MON} { return yy::seclang_parser::make_RUN_TIME_VAR_TIME_MON(yytext, loc); } {RUN_TIME_VAR_TIME_SEC} { return yy::seclang_parser::make_RUN_TIME_VAR_TIME_SEC(yytext, loc); } {RUN_TIME_VAR_TIME_WDAY} { return yy::seclang_parser::make_RUN_TIME_VAR_TIME_WDAY(yytext, loc); } {RUN_TIME_VAR_TIME_YEAR} { return yy::seclang_parser::make_RUN_TIME_VAR_TIME_YEAR(yytext, loc); } %{ /* Geo DB loopkup */ %} {CONFIG_DIR_GEO_DB}[ ]{FREE_TEXT_NEW_LINE} { return yy::seclang_parser::make_CONFIG_DIR_GEO_DB(strchr(yytext, ' ') + 1, loc); } %{ /* Request body limit */ %} {CONFIG_DIR_REQ_BODY_LIMIT}[ ]{CONFIG_VALUE_NUMBER} { return yy::seclang_parser::make_CONFIG_DIR_REQ_BODY_LIMIT(strchr(yytext, ' ') + 1, loc); } %{ /* Reponse body limit */ %} {CONFIG_DIR_RES_BODY_LIMIT}[ ]{CONFIG_VALUE_NUMBER} { return yy::seclang_parser::make_CONFIG_DIR_RES_BODY_LIMIT(strchr(yytext, ' ') + 1, loc); } {CONFIG_COMPONENT_SIG}[ ]["]{FREE_TEXT}["] { return yy::seclang_parser::make_CONFIG_COMPONENT_SIG(strchr(yytext, ' ') + 2, loc); } {CONFIG_VALUE_ON} { return yy::seclang_parser::make_CONFIG_VALUE_ON(yytext, loc); } {CONFIG_VALUE_OFF} { return yy::seclang_parser::make_CONFIG_VALUE_OFF(yytext, loc); } {CONFIG_VALUE_SERIAL} { return yy::seclang_parser::make_CONFIG_VALUE_SERIAL(yytext, loc); } {CONFIG_VALUE_PARALLEL} { return yy::seclang_parser::make_CONFIG_VALUE_PARALLEL(yytext, loc); } {CONFIG_VALUE_DETC} { return yy::seclang_parser::make_CONFIG_VALUE_DETC(yytext, loc); } {CONFIG_VALUE_RELEVANT_ONLY} { return yy::seclang_parser::make_CONFIG_VALUE_RELEVANT_ONLY(yytext, loc); } ["]{OPERATOR}[ ]{FREE_TEXT}["] { return yy::seclang_parser::make_OPERATOR(yytext, loc); } ["]{OPERATORNOARG}["] { return yy::seclang_parser::make_OPERATOR(yytext, loc); } {ACTION} { return yy::seclang_parser::make_ACTION(yytext, loc); } {ACTION_SEVERITY} { return yy::seclang_parser::make_ACTION_SEVERITY(yytext, loc); } ["] { return yy::seclang_parser::make_QUOTATION_MARK(loc); } [,] { return yy::seclang_parser::make_COMMA(loc); } [|] { return yy::seclang_parser::make_PIPE(loc); } {VARIABLENOCOLON} { return yy::seclang_parser::make_VARIABLE(yytext, loc); } [ \t]+ { return yy::seclang_parser::make_SPACE(loc); } \n { return yy::seclang_parser::make_NEW_LINE(loc); } . driver.error (loc, "invalid character"); <> { return yy::seclang_parser::make_END(loc); } %% void Driver::scan_begin () { yy_flex_debug = trace_scanning; if (file.empty () || file == "-") yyin = stdin; else if (!(yyin = fopen (file.c_str (), "r"))) { exit (EXIT_FAILURE); } } void Driver::scan_end () { fclose (yyin); }