1 %{ 2 /* 3 * configlexer.lex - lexical analyzer for unbound config file 4 * 5 * Copyright (c) 2001-2006, NLnet Labs. All rights reserved 6 * 7 * See LICENSE for the license. 8 * 9 */ 10 11 /* because flex keeps having sign-unsigned compare problems that are unfixed*/ 12 #if defined(__clang__)||(defined(__GNUC__)&&((__GNUC__ >4)||(defined(__GNUC_MINOR__)&&(__GNUC__ ==4)&&(__GNUC_MINOR__ >=2)))) 13 #pragma GCC diagnostic ignored "-Wsign-compare" 14 #endif 15 16 #include <ctype.h> 17 #include <strings.h> 18 #ifdef HAVE_GLOB_H 19 # include <glob.h> 20 #endif 21 22 #include "util/config_file.h" 23 #include "util/configparser.h" 24 void ub_c_error(const char *message); 25 26 #if 0 27 #define LEXOUT(s) printf s /* used ONLY when debugging */ 28 #else 29 #define LEXOUT(s) 30 #endif 31 32 /** avoid warning in about fwrite return value */ 33 #define ECHO ub_c_error_msg("syntax error at text: %s", yytext) 34 35 /** A parser variable, this is a statement in the config file which is 36 * of the form variable: value1 value2 ... nargs is the number of values. */ 37 #define YDVAR(nargs, var) \ 38 num_args=(nargs); \ 39 LEXOUT(("v(%s%d) ", yytext, num_args)); \ 40 if(num_args > 0) { BEGIN(val); } \ 41 return (var); 42 43 struct inc_state { 44 char* filename; 45 int line; 46 YY_BUFFER_STATE buffer; 47 struct inc_state* next; 48 }; 49 static struct inc_state* config_include_stack = NULL; 50 static int inc_depth = 0; 51 static int inc_prev = 0; 52 static int num_args = 0; 53 54 void init_cfg_parse(void) 55 { 56 config_include_stack = NULL; 57 inc_depth = 0; 58 inc_prev = 0; 59 num_args = 0; 60 } 61 62 static void config_start_include(const char* filename) 63 { 64 FILE *input; 65 struct inc_state* s; 66 char* nm; 67 if(inc_depth++ > 100000) { 68 ub_c_error_msg("too many include files"); 69 return; 70 } 71 if(*filename == '\0') { 72 ub_c_error_msg("empty include file name"); 73 return; 74 } 75 s = (struct inc_state*)malloc(sizeof(*s)); 76 if(!s) { 77 ub_c_error_msg("include %s: malloc failure", filename); 78 return; 79 } 80 if(cfg_parser->chroot && strncmp(filename, cfg_parser->chroot, 81 strlen(cfg_parser->chroot)) == 0) { 82 filename += strlen(cfg_parser->chroot); 83 } 84 nm = strdup(filename); 85 if(!nm) { 86 ub_c_error_msg("include %s: strdup failure", filename); 87 free(s); 88 return; 89 } 90 input = fopen(filename, "r"); 91 if(!input) { 92 ub_c_error_msg("cannot open include file '%s': %s", 93 filename, strerror(errno)); 94 free(s); 95 free(nm); 96 return; 97 } 98 LEXOUT(("switch_to_include_file(%s)\n", filename)); 99 s->filename = cfg_parser->filename; 100 s->line = cfg_parser->line; 101 s->buffer = YY_CURRENT_BUFFER; 102 s->next = config_include_stack; 103 config_include_stack = s; 104 cfg_parser->filename = nm; 105 cfg_parser->line = 1; 106 yy_switch_to_buffer(yy_create_buffer(input, YY_BUF_SIZE)); 107 } 108 109 static void config_start_include_glob(const char* filename) 110 { 111 112 /* check for wildcards */ 113 #ifdef HAVE_GLOB 114 glob_t g; 115 int i, r, flags; 116 if(!(!strchr(filename, '*') && !strchr(filename, '?') && !strchr(filename, '[') && 117 !strchr(filename, '{') && !strchr(filename, '~'))) { 118 flags = 0 119 #ifdef GLOB_ERR 120 | GLOB_ERR 121 #endif 122 /* do not set GLOB_NOSORT so the results are sorted 123 and in a predictable order. */ 124 #ifdef GLOB_BRACE 125 | GLOB_BRACE 126 #endif 127 #ifdef GLOB_TILDE 128 | GLOB_TILDE 129 #endif 130 ; 131 memset(&g, 0, sizeof(g)); 132 if(cfg_parser->chroot && strncmp(filename, cfg_parser->chroot, 133 strlen(cfg_parser->chroot)) == 0) { 134 filename += strlen(cfg_parser->chroot); 135 } 136 r = glob(filename, flags, NULL, &g); 137 if(r) { 138 /* some error */ 139 globfree(&g); 140 if(r == GLOB_NOMATCH) 141 return; /* no matches for pattern */ 142 config_start_include(filename); /* let original deal with it */ 143 return; 144 } 145 /* process files found, if any */ 146 for(i=(int)g.gl_pathc-1; i>=0; i--) { 147 config_start_include(g.gl_pathv[i]); 148 } 149 globfree(&g); 150 return; 151 } 152 #endif /* HAVE_GLOB */ 153 154 config_start_include(filename); 155 } 156 157 static void config_end_include(void) 158 { 159 struct inc_state* s = config_include_stack; 160 --inc_depth; 161 if(!s) return; 162 free(cfg_parser->filename); 163 cfg_parser->filename = s->filename; 164 cfg_parser->line = s->line; 165 yy_delete_buffer(YY_CURRENT_BUFFER); 166 yy_switch_to_buffer(s->buffer); 167 config_include_stack = s->next; 168 free(s); 169 } 170 171 #ifndef yy_set_bol /* compat definition, for flex 2.4.6 */ 172 #define yy_set_bol(at_bol) \ 173 { \ 174 if ( ! yy_current_buffer ) \ 175 yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \ 176 yy_current_buffer->yy_ch_buf[0] = ((at_bol)?'\n':' '); \ 177 } 178 #endif 179 180 %} 181 %option noinput 182 %option nounput 183 %{ 184 #ifndef YY_NO_UNPUT 185 #define YY_NO_UNPUT 1 186 #endif 187 #ifndef YY_NO_INPUT 188 #define YY_NO_INPUT 1 189 #endif 190 %} 191 192 SPACE [ \t] 193 LETTER [a-zA-Z] 194 UNQUOTEDLETTER [^\'\"\n\r \t\\]|\\. 195 UNQUOTEDLETTER_NOCOLON [^\:\'\"\n\r \t\\]|\\. 196 NEWLINE [\r\n] 197 COMMENT \# 198 COLON \: 199 DQANY [^\"\n\r\\]|\\. 200 SQANY [^\'\n\r\\]|\\. 201 202 %x quotedstring singlequotedstr include include_quoted val 203 204 %% 205 <INITIAL,val>{SPACE}* { 206 LEXOUT(("SP ")); /* ignore */ } 207 <INITIAL,val>{SPACE}*{COMMENT}.* { 208 /* note that flex makes the longest match and '.' is any but not nl */ 209 LEXOUT(("comment(%s) ", yytext)); /* ignore */ } 210 server{COLON} { YDVAR(0, VAR_SERVER) } 211 qname-minimisation{COLON} { YDVAR(1, VAR_QNAME_MINIMISATION) } 212 qname-minimisation-strict{COLON} { YDVAR(1, VAR_QNAME_MINIMISATION_STRICT) } 213 num-threads{COLON} { YDVAR(1, VAR_NUM_THREADS) } 214 verbosity{COLON} { YDVAR(1, VAR_VERBOSITY) } 215 port{COLON} { YDVAR(1, VAR_PORT) } 216 outgoing-range{COLON} { YDVAR(1, VAR_OUTGOING_RANGE) } 217 outgoing-port-permit{COLON} { YDVAR(1, VAR_OUTGOING_PORT_PERMIT) } 218 outgoing-port-avoid{COLON} { YDVAR(1, VAR_OUTGOING_PORT_AVOID) } 219 outgoing-num-tcp{COLON} { YDVAR(1, VAR_OUTGOING_NUM_TCP) } 220 incoming-num-tcp{COLON} { YDVAR(1, VAR_INCOMING_NUM_TCP) } 221 do-ip4{COLON} { YDVAR(1, VAR_DO_IP4) } 222 do-ip6{COLON} { YDVAR(1, VAR_DO_IP6) } 223 prefer-ip6{COLON} { YDVAR(1, VAR_PREFER_IP6) } 224 do-udp{COLON} { YDVAR(1, VAR_DO_UDP) } 225 do-tcp{COLON} { YDVAR(1, VAR_DO_TCP) } 226 tcp-upstream{COLON} { YDVAR(1, VAR_TCP_UPSTREAM) } 227 tcp-mss{COLON} { YDVAR(1, VAR_TCP_MSS) } 228 outgoing-tcp-mss{COLON} { YDVAR(1, VAR_OUTGOING_TCP_MSS) } 229 tcp-idle-timeout{COLON} { YDVAR(1, VAR_TCP_IDLE_TIMEOUT) } 230 edns-tcp-keepalive{COLON} { YDVAR(1, VAR_EDNS_TCP_KEEPALIVE) } 231 edns-tcp-keepalive-timeout{COLON} { YDVAR(1, VAR_EDNS_TCP_KEEPALIVE_TIMEOUT) } 232 ssl-upstream{COLON} { YDVAR(1, VAR_SSL_UPSTREAM) } 233 tls-upstream{COLON} { YDVAR(1, VAR_SSL_UPSTREAM) } 234 ssl-service-key{COLON} { YDVAR(1, VAR_SSL_SERVICE_KEY) } 235 tls-service-key{COLON} { YDVAR(1, VAR_SSL_SERVICE_KEY) } 236 ssl-service-pem{COLON} { YDVAR(1, VAR_SSL_SERVICE_PEM) } 237 tls-service-pem{COLON} { YDVAR(1, VAR_SSL_SERVICE_PEM) } 238 ssl-port{COLON} { YDVAR(1, VAR_SSL_PORT) } 239 tls-port{COLON} { YDVAR(1, VAR_SSL_PORT) } 240 ssl-cert-bundle{COLON} { YDVAR(1, VAR_TLS_CERT_BUNDLE) } 241 tls-cert-bundle{COLON} { YDVAR(1, VAR_TLS_CERT_BUNDLE) } 242 tls-win-cert{COLON} { YDVAR(1, VAR_TLS_WIN_CERT) } 243 additional-ssl-port{COLON} { YDVAR(1, VAR_TLS_ADDITIONAL_PORT) } 244 additional-tls-port{COLON} { YDVAR(1, VAR_TLS_ADDITIONAL_PORT) } 245 tls-additional-ports{COLON} { YDVAR(1, VAR_TLS_ADDITIONAL_PORT) } 246 tls-additional-port{COLON} { YDVAR(1, VAR_TLS_ADDITIONAL_PORT) } 247 tls-session-ticket-keys{COLON} { YDVAR(1, VAR_TLS_SESSION_TICKET_KEYS) } 248 tls-ciphers{COLON} { YDVAR(1, VAR_TLS_CIPHERS) } 249 tls-ciphersuites{COLON} { YDVAR(1, VAR_TLS_CIPHERSUITES) } 250 use-systemd{COLON} { YDVAR(1, VAR_USE_SYSTEMD) } 251 do-daemonize{COLON} { YDVAR(1, VAR_DO_DAEMONIZE) } 252 interface{COLON} { YDVAR(1, VAR_INTERFACE) } 253 ip-address{COLON} { YDVAR(1, VAR_INTERFACE) } 254 outgoing-interface{COLON} { YDVAR(1, VAR_OUTGOING_INTERFACE) } 255 interface-automatic{COLON} { YDVAR(1, VAR_INTERFACE_AUTOMATIC) } 256 so-rcvbuf{COLON} { YDVAR(1, VAR_SO_RCVBUF) } 257 so-sndbuf{COLON} { YDVAR(1, VAR_SO_SNDBUF) } 258 so-reuseport{COLON} { YDVAR(1, VAR_SO_REUSEPORT) } 259 ip-transparent{COLON} { YDVAR(1, VAR_IP_TRANSPARENT) } 260 ip-freebind{COLON} { YDVAR(1, VAR_IP_FREEBIND) } 261 chroot{COLON} { YDVAR(1, VAR_CHROOT) } 262 username{COLON} { YDVAR(1, VAR_USERNAME) } 263 directory{COLON} { YDVAR(1, VAR_DIRECTORY) } 264 logfile{COLON} { YDVAR(1, VAR_LOGFILE) } 265 pidfile{COLON} { YDVAR(1, VAR_PIDFILE) } 266 root-hints{COLON} { YDVAR(1, VAR_ROOT_HINTS) } 267 stream-wait-size{COLON} { YDVAR(1, VAR_STREAM_WAIT_SIZE) } 268 edns-buffer-size{COLON} { YDVAR(1, VAR_EDNS_BUFFER_SIZE) } 269 msg-buffer-size{COLON} { YDVAR(1, VAR_MSG_BUFFER_SIZE) } 270 msg-cache-size{COLON} { YDVAR(1, VAR_MSG_CACHE_SIZE) } 271 msg-cache-slabs{COLON} { YDVAR(1, VAR_MSG_CACHE_SLABS) } 272 rrset-cache-size{COLON} { YDVAR(1, VAR_RRSET_CACHE_SIZE) } 273 rrset-cache-slabs{COLON} { YDVAR(1, VAR_RRSET_CACHE_SLABS) } 274 cache-max-ttl{COLON} { YDVAR(1, VAR_CACHE_MAX_TTL) } 275 cache-max-negative-ttl{COLON} { YDVAR(1, VAR_CACHE_MAX_NEGATIVE_TTL) } 276 cache-min-ttl{COLON} { YDVAR(1, VAR_CACHE_MIN_TTL) } 277 infra-host-ttl{COLON} { YDVAR(1, VAR_INFRA_HOST_TTL) } 278 infra-lame-ttl{COLON} { YDVAR(1, VAR_INFRA_LAME_TTL) } 279 infra-cache-slabs{COLON} { YDVAR(1, VAR_INFRA_CACHE_SLABS) } 280 infra-cache-numhosts{COLON} { YDVAR(1, VAR_INFRA_CACHE_NUMHOSTS) } 281 infra-cache-lame-size{COLON} { YDVAR(1, VAR_INFRA_CACHE_LAME_SIZE) } 282 infra-cache-min-rtt{COLON} { YDVAR(1, VAR_INFRA_CACHE_MIN_RTT) } 283 num-queries-per-thread{COLON} { YDVAR(1, VAR_NUM_QUERIES_PER_THREAD) } 284 jostle-timeout{COLON} { YDVAR(1, VAR_JOSTLE_TIMEOUT) } 285 delay-close{COLON} { YDVAR(1, VAR_DELAY_CLOSE) } 286 target-fetch-policy{COLON} { YDVAR(1, VAR_TARGET_FETCH_POLICY) } 287 harden-short-bufsize{COLON} { YDVAR(1, VAR_HARDEN_SHORT_BUFSIZE) } 288 harden-large-queries{COLON} { YDVAR(1, VAR_HARDEN_LARGE_QUERIES) } 289 harden-glue{COLON} { YDVAR(1, VAR_HARDEN_GLUE) } 290 harden-dnssec-stripped{COLON} { YDVAR(1, VAR_HARDEN_DNSSEC_STRIPPED) } 291 harden-below-nxdomain{COLON} { YDVAR(1, VAR_HARDEN_BELOW_NXDOMAIN) } 292 harden-referral-path{COLON} { YDVAR(1, VAR_HARDEN_REFERRAL_PATH) } 293 harden-algo-downgrade{COLON} { YDVAR(1, VAR_HARDEN_ALGO_DOWNGRADE) } 294 use-caps-for-id{COLON} { YDVAR(1, VAR_USE_CAPS_FOR_ID) } 295 caps-whitelist{COLON} { YDVAR(1, VAR_CAPS_WHITELIST) } 296 unwanted-reply-threshold{COLON} { YDVAR(1, VAR_UNWANTED_REPLY_THRESHOLD) } 297 private-address{COLON} { YDVAR(1, VAR_PRIVATE_ADDRESS) } 298 private-domain{COLON} { YDVAR(1, VAR_PRIVATE_DOMAIN) } 299 prefetch-key{COLON} { YDVAR(1, VAR_PREFETCH_KEY) } 300 prefetch{COLON} { YDVAR(1, VAR_PREFETCH) } 301 deny-any{COLON} { YDVAR(1, VAR_DENY_ANY) } 302 stub-zone{COLON} { YDVAR(0, VAR_STUB_ZONE) } 303 name{COLON} { YDVAR(1, VAR_NAME) } 304 stub-addr{COLON} { YDVAR(1, VAR_STUB_ADDR) } 305 stub-host{COLON} { YDVAR(1, VAR_STUB_HOST) } 306 stub-prime{COLON} { YDVAR(1, VAR_STUB_PRIME) } 307 stub-first{COLON} { YDVAR(1, VAR_STUB_FIRST) } 308 stub-no-cache{COLON} { YDVAR(1, VAR_STUB_NO_CACHE) } 309 stub-ssl-upstream{COLON} { YDVAR(1, VAR_STUB_SSL_UPSTREAM) } 310 stub-tls-upstream{COLON} { YDVAR(1, VAR_STUB_SSL_UPSTREAM) } 311 forward-zone{COLON} { YDVAR(0, VAR_FORWARD_ZONE) } 312 forward-addr{COLON} { YDVAR(1, VAR_FORWARD_ADDR) } 313 forward-host{COLON} { YDVAR(1, VAR_FORWARD_HOST) } 314 forward-first{COLON} { YDVAR(1, VAR_FORWARD_FIRST) } 315 forward-no-cache{COLON} { YDVAR(1, VAR_FORWARD_NO_CACHE) } 316 forward-ssl-upstream{COLON} { YDVAR(1, VAR_FORWARD_SSL_UPSTREAM) } 317 forward-tls-upstream{COLON} { YDVAR(1, VAR_FORWARD_SSL_UPSTREAM) } 318 auth-zone{COLON} { YDVAR(0, VAR_AUTH_ZONE) } 319 rpz{COLON} { YDVAR(0, VAR_RPZ) } 320 tags{COLON} { YDVAR(1, VAR_TAGS) } 321 rpz-action-override{COLON} { YDVAR(1, VAR_RPZ_ACTION_OVERRIDE) } 322 rpz-cname-override{COLON} { YDVAR(1, VAR_RPZ_CNAME_OVERRIDE) } 323 rpz-log{COLON} { YDVAR(1, VAR_RPZ_LOG) } 324 rpz-log-name{COLON} { YDVAR(1, VAR_RPZ_LOG_NAME) } 325 zonefile{COLON} { YDVAR(1, VAR_ZONEFILE) } 326 master{COLON} { YDVAR(1, VAR_MASTER) } 327 url{COLON} { YDVAR(1, VAR_URL) } 328 allow-notify{COLON} { YDVAR(1, VAR_ALLOW_NOTIFY) } 329 for-downstream{COLON} { YDVAR(1, VAR_FOR_DOWNSTREAM) } 330 for-upstream{COLON} { YDVAR(1, VAR_FOR_UPSTREAM) } 331 fallback-enabled{COLON} { YDVAR(1, VAR_FALLBACK_ENABLED) } 332 view{COLON} { YDVAR(0, VAR_VIEW) } 333 view-first{COLON} { YDVAR(1, VAR_VIEW_FIRST) } 334 do-not-query-address{COLON} { YDVAR(1, VAR_DO_NOT_QUERY_ADDRESS) } 335 do-not-query-localhost{COLON} { YDVAR(1, VAR_DO_NOT_QUERY_LOCALHOST) } 336 access-control{COLON} { YDVAR(2, VAR_ACCESS_CONTROL) } 337 send-client-subnet{COLON} { YDVAR(1, VAR_SEND_CLIENT_SUBNET) } 338 client-subnet-zone{COLON} { YDVAR(1, VAR_CLIENT_SUBNET_ZONE) } 339 client-subnet-always-forward{COLON} { YDVAR(1, VAR_CLIENT_SUBNET_ALWAYS_FORWARD) } 340 client-subnet-opcode{COLON} { YDVAR(1, VAR_CLIENT_SUBNET_OPCODE) } 341 max-client-subnet-ipv4{COLON} { YDVAR(1, VAR_MAX_CLIENT_SUBNET_IPV4) } 342 max-client-subnet-ipv6{COLON} { YDVAR(1, VAR_MAX_CLIENT_SUBNET_IPV6) } 343 min-client-subnet-ipv4{COLON} { YDVAR(1, VAR_MIN_CLIENT_SUBNET_IPV4) } 344 min-client-subnet-ipv6{COLON} { YDVAR(1, VAR_MIN_CLIENT_SUBNET_IPV6) } 345 max-ecs-tree-size-ipv4{COLON} { YDVAR(1, VAR_MAX_ECS_TREE_SIZE_IPV4) } 346 max-ecs-tree-size-ipv6{COLON} { YDVAR(1, VAR_MAX_ECS_TREE_SIZE_IPV6) } 347 hide-identity{COLON} { YDVAR(1, VAR_HIDE_IDENTITY) } 348 hide-version{COLON} { YDVAR(1, VAR_HIDE_VERSION) } 349 hide-trustanchor{COLON} { YDVAR(1, VAR_HIDE_TRUSTANCHOR) } 350 identity{COLON} { YDVAR(1, VAR_IDENTITY) } 351 version{COLON} { YDVAR(1, VAR_VERSION) } 352 module-config{COLON} { YDVAR(1, VAR_MODULE_CONF) } 353 dlv-anchor{COLON} { YDVAR(1, VAR_DLV_ANCHOR) } 354 dlv-anchor-file{COLON} { YDVAR(1, VAR_DLV_ANCHOR_FILE) } 355 trust-anchor-file{COLON} { YDVAR(1, VAR_TRUST_ANCHOR_FILE) } 356 auto-trust-anchor-file{COLON} { YDVAR(1, VAR_AUTO_TRUST_ANCHOR_FILE) } 357 trusted-keys-file{COLON} { YDVAR(1, VAR_TRUSTED_KEYS_FILE) } 358 trust-anchor{COLON} { YDVAR(1, VAR_TRUST_ANCHOR) } 359 trust-anchor-signaling{COLON} { YDVAR(1, VAR_TRUST_ANCHOR_SIGNALING) } 360 root-key-sentinel{COLON} { YDVAR(1, VAR_ROOT_KEY_SENTINEL) } 361 val-override-date{COLON} { YDVAR(1, VAR_VAL_OVERRIDE_DATE) } 362 val-sig-skew-min{COLON} { YDVAR(1, VAR_VAL_SIG_SKEW_MIN) } 363 val-sig-skew-max{COLON} { YDVAR(1, VAR_VAL_SIG_SKEW_MAX) } 364 val-bogus-ttl{COLON} { YDVAR(1, VAR_BOGUS_TTL) } 365 val-clean-additional{COLON} { YDVAR(1, VAR_VAL_CLEAN_ADDITIONAL) } 366 val-permissive-mode{COLON} { YDVAR(1, VAR_VAL_PERMISSIVE_MODE) } 367 aggressive-nsec{COLON} { YDVAR(1, VAR_AGGRESSIVE_NSEC) } 368 ignore-cd-flag{COLON} { YDVAR(1, VAR_IGNORE_CD_FLAG) } 369 serve-expired{COLON} { YDVAR(1, VAR_SERVE_EXPIRED) } 370 serve-expired-ttl{COLON} { YDVAR(1, VAR_SERVE_EXPIRED_TTL) } 371 serve-expired-ttl-reset{COLON} { YDVAR(1, VAR_SERVE_EXPIRED_TTL_RESET) } 372 serve-expired-reply-ttl{COLON} { YDVAR(1, VAR_SERVE_EXPIRED_REPLY_TTL) } 373 serve-expired-client-timeout{COLON} { YDVAR(1, VAR_SERVE_EXPIRED_CLIENT_TIMEOUT) } 374 fake-dsa{COLON} { YDVAR(1, VAR_FAKE_DSA) } 375 fake-sha1{COLON} { YDVAR(1, VAR_FAKE_SHA1) } 376 val-log-level{COLON} { YDVAR(1, VAR_VAL_LOG_LEVEL) } 377 key-cache-size{COLON} { YDVAR(1, VAR_KEY_CACHE_SIZE) } 378 key-cache-slabs{COLON} { YDVAR(1, VAR_KEY_CACHE_SLABS) } 379 neg-cache-size{COLON} { YDVAR(1, VAR_NEG_CACHE_SIZE) } 380 val-nsec3-keysize-iterations{COLON} { 381 YDVAR(1, VAR_VAL_NSEC3_KEYSIZE_ITERATIONS) } 382 add-holddown{COLON} { YDVAR(1, VAR_ADD_HOLDDOWN) } 383 del-holddown{COLON} { YDVAR(1, VAR_DEL_HOLDDOWN) } 384 keep-missing{COLON} { YDVAR(1, VAR_KEEP_MISSING) } 385 permit-small-holddown{COLON} { YDVAR(1, VAR_PERMIT_SMALL_HOLDDOWN) } 386 use-syslog{COLON} { YDVAR(1, VAR_USE_SYSLOG) } 387 log-identity{COLON} { YDVAR(1, VAR_LOG_IDENTITY) } 388 log-time-ascii{COLON} { YDVAR(1, VAR_LOG_TIME_ASCII) } 389 log-queries{COLON} { YDVAR(1, VAR_LOG_QUERIES) } 390 log-replies{COLON} { YDVAR(1, VAR_LOG_REPLIES) } 391 log-tag-queryreply{COLON} { YDVAR(1, VAR_LOG_TAG_QUERYREPLY) } 392 log-local-actions{COLON} { YDVAR(1, VAR_LOG_LOCAL_ACTIONS) } 393 log-servfail{COLON} { YDVAR(1, VAR_LOG_SERVFAIL) } 394 local-zone{COLON} { YDVAR(2, VAR_LOCAL_ZONE) } 395 local-data{COLON} { YDVAR(1, VAR_LOCAL_DATA) } 396 local-data-ptr{COLON} { YDVAR(1, VAR_LOCAL_DATA_PTR) } 397 unblock-lan-zones{COLON} { YDVAR(1, VAR_UNBLOCK_LAN_ZONES) } 398 insecure-lan-zones{COLON} { YDVAR(1, VAR_INSECURE_LAN_ZONES) } 399 statistics-interval{COLON} { YDVAR(1, VAR_STATISTICS_INTERVAL) } 400 statistics-cumulative{COLON} { YDVAR(1, VAR_STATISTICS_CUMULATIVE) } 401 extended-statistics{COLON} { YDVAR(1, VAR_EXTENDED_STATISTICS) } 402 shm-enable{COLON} { YDVAR(1, VAR_SHM_ENABLE) } 403 shm-key{COLON} { YDVAR(1, VAR_SHM_KEY) } 404 remote-control{COLON} { YDVAR(0, VAR_REMOTE_CONTROL) } 405 control-enable{COLON} { YDVAR(1, VAR_CONTROL_ENABLE) } 406 control-interface{COLON} { YDVAR(1, VAR_CONTROL_INTERFACE) } 407 control-port{COLON} { YDVAR(1, VAR_CONTROL_PORT) } 408 control-use-cert{COLON} { YDVAR(1, VAR_CONTROL_USE_CERT) } 409 server-key-file{COLON} { YDVAR(1, VAR_SERVER_KEY_FILE) } 410 server-cert-file{COLON} { YDVAR(1, VAR_SERVER_CERT_FILE) } 411 control-key-file{COLON} { YDVAR(1, VAR_CONTROL_KEY_FILE) } 412 control-cert-file{COLON} { YDVAR(1, VAR_CONTROL_CERT_FILE) } 413 python-script{COLON} { YDVAR(1, VAR_PYTHON_SCRIPT) } 414 python{COLON} { YDVAR(0, VAR_PYTHON) } 415 domain-insecure{COLON} { YDVAR(1, VAR_DOMAIN_INSECURE) } 416 minimal-responses{COLON} { YDVAR(1, VAR_MINIMAL_RESPONSES) } 417 rrset-roundrobin{COLON} { YDVAR(1, VAR_RRSET_ROUNDROBIN) } 418 unknown-server-time-limit{COLON} { YDVAR(1, VAR_UNKNOWN_SERVER_TIME_LIMIT) } 419 max-udp-size{COLON} { YDVAR(1, VAR_MAX_UDP_SIZE) } 420 dns64-prefix{COLON} { YDVAR(1, VAR_DNS64_PREFIX) } 421 dns64-synthall{COLON} { YDVAR(1, VAR_DNS64_SYNTHALL) } 422 dns64-ignore-aaaa{COLON} { YDVAR(1, VAR_DNS64_IGNORE_AAAA) } 423 define-tag{COLON} { YDVAR(1, VAR_DEFINE_TAG) } 424 local-zone-tag{COLON} { YDVAR(2, VAR_LOCAL_ZONE_TAG) } 425 access-control-tag{COLON} { YDVAR(2, VAR_ACCESS_CONTROL_TAG) } 426 access-control-tag-action{COLON} { YDVAR(3, VAR_ACCESS_CONTROL_TAG_ACTION) } 427 access-control-tag-data{COLON} { YDVAR(3, VAR_ACCESS_CONTROL_TAG_DATA) } 428 access-control-view{COLON} { YDVAR(2, VAR_ACCESS_CONTROL_VIEW) } 429 local-zone-override{COLON} { YDVAR(3, VAR_LOCAL_ZONE_OVERRIDE) } 430 dnstap{COLON} { YDVAR(0, VAR_DNSTAP) } 431 dnstap-enable{COLON} { YDVAR(1, VAR_DNSTAP_ENABLE) } 432 dnstap-socket-path{COLON} { YDVAR(1, VAR_DNSTAP_SOCKET_PATH) } 433 dnstap-send-identity{COLON} { YDVAR(1, VAR_DNSTAP_SEND_IDENTITY) } 434 dnstap-send-version{COLON} { YDVAR(1, VAR_DNSTAP_SEND_VERSION) } 435 dnstap-identity{COLON} { YDVAR(1, VAR_DNSTAP_IDENTITY) } 436 dnstap-version{COLON} { YDVAR(1, VAR_DNSTAP_VERSION) } 437 dnstap-log-resolver-query-messages{COLON} { 438 YDVAR(1, VAR_DNSTAP_LOG_RESOLVER_QUERY_MESSAGES) } 439 dnstap-log-resolver-response-messages{COLON} { 440 YDVAR(1, VAR_DNSTAP_LOG_RESOLVER_RESPONSE_MESSAGES) } 441 dnstap-log-client-query-messages{COLON} { 442 YDVAR(1, VAR_DNSTAP_LOG_CLIENT_QUERY_MESSAGES) } 443 dnstap-log-client-response-messages{COLON} { 444 YDVAR(1, VAR_DNSTAP_LOG_CLIENT_RESPONSE_MESSAGES) } 445 dnstap-log-forwarder-query-messages{COLON} { 446 YDVAR(1, VAR_DNSTAP_LOG_FORWARDER_QUERY_MESSAGES) } 447 dnstap-log-forwarder-response-messages{COLON} { 448 YDVAR(1, VAR_DNSTAP_LOG_FORWARDER_RESPONSE_MESSAGES) } 449 disable-dnssec-lame-check{COLON} { YDVAR(1, VAR_DISABLE_DNSSEC_LAME_CHECK) } 450 ip-ratelimit{COLON} { YDVAR(1, VAR_IP_RATELIMIT) } 451 ratelimit{COLON} { YDVAR(1, VAR_RATELIMIT) } 452 ip-ratelimit-slabs{COLON} { YDVAR(1, VAR_IP_RATELIMIT_SLABS) } 453 ratelimit-slabs{COLON} { YDVAR(1, VAR_RATELIMIT_SLABS) } 454 ip-ratelimit-size{COLON} { YDVAR(1, VAR_IP_RATELIMIT_SIZE) } 455 ratelimit-size{COLON} { YDVAR(1, VAR_RATELIMIT_SIZE) } 456 ratelimit-for-domain{COLON} { YDVAR(2, VAR_RATELIMIT_FOR_DOMAIN) } 457 ratelimit-below-domain{COLON} { YDVAR(2, VAR_RATELIMIT_BELOW_DOMAIN) } 458 ip-ratelimit-factor{COLON} { YDVAR(1, VAR_IP_RATELIMIT_FACTOR) } 459 ratelimit-factor{COLON} { YDVAR(1, VAR_RATELIMIT_FACTOR) } 460 low-rtt{COLON} { YDVAR(1, VAR_LOW_RTT) } 461 fast-server-num{COLON} { YDVAR(1, VAR_FAST_SERVER_NUM) } 462 low-rtt-pct{COLON} { YDVAR(1, VAR_FAST_SERVER_PERMIL) } 463 low-rtt-permil{COLON} { YDVAR(1, VAR_FAST_SERVER_PERMIL) } 464 fast-server-permil{COLON} { YDVAR(1, VAR_FAST_SERVER_PERMIL) } 465 response-ip-tag{COLON} { YDVAR(2, VAR_RESPONSE_IP_TAG) } 466 response-ip{COLON} { YDVAR(2, VAR_RESPONSE_IP) } 467 response-ip-data{COLON} { YDVAR(2, VAR_RESPONSE_IP_DATA) } 468 dnscrypt{COLON} { YDVAR(0, VAR_DNSCRYPT) } 469 dnscrypt-enable{COLON} { YDVAR(1, VAR_DNSCRYPT_ENABLE) } 470 dnscrypt-port{COLON} { YDVAR(1, VAR_DNSCRYPT_PORT) } 471 dnscrypt-provider{COLON} { YDVAR(1, VAR_DNSCRYPT_PROVIDER) } 472 dnscrypt-secret-key{COLON} { YDVAR(1, VAR_DNSCRYPT_SECRET_KEY) } 473 dnscrypt-provider-cert{COLON} { YDVAR(1, VAR_DNSCRYPT_PROVIDER_CERT) } 474 dnscrypt-provider-cert-rotated{COLON} { YDVAR(1, VAR_DNSCRYPT_PROVIDER_CERT_ROTATED) } 475 dnscrypt-shared-secret-cache-size{COLON} { 476 YDVAR(1, VAR_DNSCRYPT_SHARED_SECRET_CACHE_SIZE) } 477 dnscrypt-shared-secret-cache-slabs{COLON} { 478 YDVAR(1, VAR_DNSCRYPT_SHARED_SECRET_CACHE_SLABS) } 479 dnscrypt-nonce-cache-size{COLON} { YDVAR(1, VAR_DNSCRYPT_NONCE_CACHE_SIZE) } 480 dnscrypt-nonce-cache-slabs{COLON} { YDVAR(1, VAR_DNSCRYPT_NONCE_CACHE_SLABS) } 481 ipsecmod-enabled{COLON} { YDVAR(1, VAR_IPSECMOD_ENABLED) } 482 ipsecmod-ignore-bogus{COLON} { YDVAR(1, VAR_IPSECMOD_IGNORE_BOGUS) } 483 ipsecmod-hook{COLON} { YDVAR(1, VAR_IPSECMOD_HOOK) } 484 ipsecmod-max-ttl{COLON} { YDVAR(1, VAR_IPSECMOD_MAX_TTL) } 485 ipsecmod-whitelist{COLON} { YDVAR(1, VAR_IPSECMOD_WHITELIST) } 486 ipsecmod-strict{COLON} { YDVAR(1, VAR_IPSECMOD_STRICT) } 487 cachedb{COLON} { YDVAR(0, VAR_CACHEDB) } 488 backend{COLON} { YDVAR(1, VAR_CACHEDB_BACKEND) } 489 secret-seed{COLON} { YDVAR(1, VAR_CACHEDB_SECRETSEED) } 490 redis-server-host{COLON} { YDVAR(1, VAR_CACHEDB_REDISHOST) } 491 redis-server-port{COLON} { YDVAR(1, VAR_CACHEDB_REDISPORT) } 492 redis-timeout{COLON} { YDVAR(1, VAR_CACHEDB_REDISTIMEOUT) } 493 ipset{COLON} { YDVAR(0, VAR_IPSET) } 494 name-v4{COLON} { YDVAR(1, VAR_IPSET_NAME_V4) } 495 name-v6{COLON} { YDVAR(1, VAR_IPSET_NAME_V6) } 496 udp-upstream-without-downstream{COLON} { YDVAR(1, VAR_UDP_UPSTREAM_WITHOUT_DOWNSTREAM) } 497 tcp-connection-limit{COLON} { YDVAR(2, VAR_TCP_CONNECTION_LIMIT) } 498 <INITIAL,val>{NEWLINE} { LEXOUT(("NL\n")); cfg_parser->line++; } 499 500 /* Quoted strings. Strip leading and ending quotes */ 501 <val>\" { BEGIN(quotedstring); LEXOUT(("QS ")); } 502 <quotedstring><<EOF>> { 503 yyerror("EOF inside quoted string"); 504 if(--num_args == 0) { BEGIN(INITIAL); } 505 else { BEGIN(val); } 506 } 507 <quotedstring>{DQANY}* { LEXOUT(("STR(%s) ", yytext)); yymore(); } 508 <quotedstring>{NEWLINE} { yyerror("newline inside quoted string, no end \""); 509 cfg_parser->line++; BEGIN(INITIAL); } 510 <quotedstring>\" { 511 LEXOUT(("QE ")); 512 if(--num_args == 0) { BEGIN(INITIAL); } 513 else { BEGIN(val); } 514 yytext[yyleng - 1] = '\0'; 515 yylval.str = strdup(yytext); 516 if(!yylval.str) 517 yyerror("out of memory"); 518 return STRING_ARG; 519 } 520 521 /* Single Quoted strings. Strip leading and ending quotes */ 522 <val>\' { BEGIN(singlequotedstr); LEXOUT(("SQS ")); } 523 <singlequotedstr><<EOF>> { 524 yyerror("EOF inside quoted string"); 525 if(--num_args == 0) { BEGIN(INITIAL); } 526 else { BEGIN(val); } 527 } 528 <singlequotedstr>{SQANY}* { LEXOUT(("STR(%s) ", yytext)); yymore(); } 529 <singlequotedstr>{NEWLINE} { yyerror("newline inside quoted string, no end '"); 530 cfg_parser->line++; BEGIN(INITIAL); } 531 <singlequotedstr>\' { 532 LEXOUT(("SQE ")); 533 if(--num_args == 0) { BEGIN(INITIAL); } 534 else { BEGIN(val); } 535 yytext[yyleng - 1] = '\0'; 536 yylval.str = strdup(yytext); 537 if(!yylval.str) 538 yyerror("out of memory"); 539 return STRING_ARG; 540 } 541 542 /* include: directive */ 543 <INITIAL,val>include{COLON} { 544 LEXOUT(("v(%s) ", yytext)); inc_prev = YYSTATE; BEGIN(include); } 545 <include><<EOF>> { 546 yyerror("EOF inside include directive"); 547 BEGIN(inc_prev); 548 } 549 <include>{SPACE}* { LEXOUT(("ISP ")); /* ignore */ } 550 <include>{NEWLINE} { LEXOUT(("NL\n")); cfg_parser->line++;} 551 <include>\" { LEXOUT(("IQS ")); BEGIN(include_quoted); } 552 <include>{UNQUOTEDLETTER}* { 553 LEXOUT(("Iunquotedstr(%s) ", yytext)); 554 config_start_include_glob(yytext); 555 BEGIN(inc_prev); 556 } 557 <include_quoted><<EOF>> { 558 yyerror("EOF inside quoted string"); 559 BEGIN(inc_prev); 560 } 561 <include_quoted>{DQANY}* { LEXOUT(("ISTR(%s) ", yytext)); yymore(); } 562 <include_quoted>{NEWLINE} { yyerror("newline before \" in include name"); 563 cfg_parser->line++; BEGIN(inc_prev); } 564 <include_quoted>\" { 565 LEXOUT(("IQE ")); 566 yytext[yyleng - 1] = '\0'; 567 config_start_include_glob(yytext); 568 BEGIN(inc_prev); 569 } 570 <INITIAL,val><<EOF>> { 571 LEXOUT(("LEXEOF ")); 572 yy_set_bol(1); /* Set beginning of line, so "^" rules match. */ 573 if (!config_include_stack) { 574 yyterminate(); 575 } else { 576 fclose(yyin); 577 config_end_include(); 578 } 579 } 580 581 <val>{UNQUOTEDLETTER}* { LEXOUT(("unquotedstr(%s) ", yytext)); 582 if(--num_args == 0) { BEGIN(INITIAL); } 583 yylval.str = strdup(yytext); return STRING_ARG; } 584 585 {UNQUOTEDLETTER_NOCOLON}* { 586 ub_c_error_msg("unknown keyword '%s'", yytext); 587 } 588 589 <*>. { 590 ub_c_error_msg("stray '%s'", yytext); 591 } 592 593 %% 594