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 #include "config.h" 11 12 /* because flex keeps having sign-unsigned compare problems that are unfixed*/ 13 #if defined(__clang__)||(defined(__GNUC__)&&((__GNUC__ >4)||(defined(__GNUC_MINOR__)&&(__GNUC__ ==4)&&(__GNUC_MINOR__ >=2)))) 14 #pragma GCC diagnostic ignored "-Wsign-compare" 15 #endif 16 17 #include <ctype.h> 18 #include <strings.h> 19 #ifdef HAVE_GLOB_H 20 # include <glob.h> 21 #endif 22 23 #include "util/config_file.h" 24 #include "configparser.h" 25 void ub_c_error(const char *message); 26 27 #if 0 28 #define LEXOUT(s) printf s /* used ONLY when debugging */ 29 #else 30 #define LEXOUT(s) 31 #endif 32 33 /** avoid warning in about fwrite return value */ 34 #define ECHO ub_c_error_msg("syntax error at text: %s", ub_c_text) 35 36 /** A parser variable, this is a statement in the config file which is 37 * of the form variable: value1 value2 ... nargs is the number of values. */ 38 #define YDVAR(nargs, var) \ 39 num_args=(nargs); \ 40 LEXOUT(("v(%s%d) ", ub_c_text, num_args)); \ 41 if(num_args > 0) { BEGIN(val); } \ 42 return (var); 43 44 struct inc_state { 45 char* filename; 46 int line; 47 YY_BUFFER_STATE buffer; 48 struct inc_state* next; 49 }; 50 static struct inc_state* config_include_stack = NULL; 51 static int inc_depth = 0; 52 static int inc_prev = 0; 53 static int num_args = 0; 54 55 void init_cfg_parse(void) 56 { 57 config_include_stack = NULL; 58 inc_depth = 0; 59 inc_prev = 0; 60 num_args = 0; 61 } 62 63 static void config_start_include(const char* filename) 64 { 65 FILE *input; 66 struct inc_state* s; 67 char* nm; 68 if(inc_depth++ > 100000) { 69 ub_c_error_msg("too many include files"); 70 return; 71 } 72 if(*filename == '\0') { 73 ub_c_error_msg("empty include file name"); 74 return; 75 } 76 s = (struct inc_state*)malloc(sizeof(*s)); 77 if(!s) { 78 ub_c_error_msg("include %s: malloc failure", filename); 79 return; 80 } 81 if(cfg_parser->chroot && strncmp(filename, cfg_parser->chroot, 82 strlen(cfg_parser->chroot)) == 0) { 83 filename += strlen(cfg_parser->chroot); 84 } 85 nm = strdup(filename); 86 if(!nm) { 87 ub_c_error_msg("include %s: strdup failure", filename); 88 free(s); 89 return; 90 } 91 input = fopen(filename, "r"); 92 if(!input) { 93 ub_c_error_msg("cannot open include file '%s': %s", 94 filename, strerror(errno)); 95 free(s); 96 free(nm); 97 return; 98 } 99 LEXOUT(("switch_to_include_file(%s)\n", filename)); 100 s->filename = cfg_parser->filename; 101 s->line = cfg_parser->line; 102 s->buffer = YY_CURRENT_BUFFER; 103 s->next = config_include_stack; 104 config_include_stack = s; 105 cfg_parser->filename = nm; 106 cfg_parser->line = 1; 107 yy_switch_to_buffer(yy_create_buffer(input, YY_BUF_SIZE)); 108 } 109 110 static void config_start_include_glob(const char* filename) 111 { 112 113 /* check for wildcards */ 114 #ifdef HAVE_GLOB 115 glob_t g; 116 int i, r, flags; 117 if(!(!strchr(filename, '*') && !strchr(filename, '?') && !strchr(filename, '[') && 118 !strchr(filename, '{') && !strchr(filename, '~'))) { 119 flags = 0 120 #ifdef GLOB_ERR 121 | GLOB_ERR 122 #endif 123 /* do not set GLOB_NOSORT so the results are sorted 124 and in a predictable order. */ 125 #ifdef GLOB_BRACE 126 | GLOB_BRACE 127 #endif 128 #ifdef GLOB_TILDE 129 | GLOB_TILDE 130 #endif 131 ; 132 memset(&g, 0, sizeof(g)); 133 if(cfg_parser->chroot && strncmp(filename, cfg_parser->chroot, 134 strlen(cfg_parser->chroot)) == 0) { 135 filename += strlen(cfg_parser->chroot); 136 } 137 r = glob(filename, flags, NULL, &g); 138 if(r) { 139 /* some error */ 140 globfree(&g); 141 if(r == GLOB_NOMATCH) 142 return; /* no matches for pattern */ 143 config_start_include(filename); /* let original deal with it */ 144 return; 145 } 146 /* process files found, if any */ 147 for(i=(int)g.gl_pathc-1; i>=0; i--) { 148 config_start_include(g.gl_pathv[i]); 149 } 150 globfree(&g); 151 return; 152 } 153 #endif /* HAVE_GLOB */ 154 155 config_start_include(filename); 156 } 157 158 static void config_end_include(void) 159 { 160 struct inc_state* s = config_include_stack; 161 --inc_depth; 162 if(!s) return; 163 free(cfg_parser->filename); 164 cfg_parser->filename = s->filename; 165 cfg_parser->line = s->line; 166 yy_delete_buffer(YY_CURRENT_BUFFER); 167 yy_switch_to_buffer(s->buffer); 168 config_include_stack = s->next; 169 free(s); 170 } 171 172 #ifndef yy_set_bol /* compat definition, for flex 2.4.6 */ 173 #define yy_set_bol(at_bol) \ 174 { \ 175 if ( ! yy_current_buffer ) \ 176 yy_current_buffer = yy_create_buffer( ub_c_in, YY_BUF_SIZE ); \ 177 yy_current_buffer->yy_ch_buf[0] = ((at_bol)?'\n':' '); \ 178 } 179 #endif 180 181 %} 182 %option noinput 183 %option nounput 184 %{ 185 #ifndef YY_NO_UNPUT 186 #define YY_NO_UNPUT 1 187 #endif 188 #ifndef YY_NO_INPUT 189 #define YY_NO_INPUT 1 190 #endif 191 %} 192 193 SPACE [ \t] 194 LETTER [a-zA-Z] 195 UNQUOTEDLETTER [^\'\"\n\r \t\\]|\\. 196 UNQUOTEDLETTER_NOCOLON [^\:\'\"\n\r \t\\]|\\. 197 NEWLINE [\r\n] 198 COMMENT \# 199 COLON \: 200 DQANY [^\"\n\r\\]|\\. 201 SQANY [^\'\n\r\\]|\\. 202 203 %x quotedstring singlequotedstr include include_quoted val 204 205 %% 206 <INITIAL,val>{SPACE}* { 207 LEXOUT(("SP ")); /* ignore */ } 208 <INITIAL,val>{SPACE}*{COMMENT}.* { 209 /* note that flex makes the longest match and '.' is any but not nl */ 210 LEXOUT(("comment(%s) ", ub_c_text)); /* ignore */ } 211 server{COLON} { YDVAR(0, VAR_SERVER) } 212 qname-minimisation{COLON} { YDVAR(1, VAR_QNAME_MINIMISATION) } 213 qname-minimisation-strict{COLON} { YDVAR(1, VAR_QNAME_MINIMISATION_STRICT) } 214 num-threads{COLON} { YDVAR(1, VAR_NUM_THREADS) } 215 verbosity{COLON} { YDVAR(1, VAR_VERBOSITY) } 216 port{COLON} { YDVAR(1, VAR_PORT) } 217 outgoing-range{COLON} { YDVAR(1, VAR_OUTGOING_RANGE) } 218 outgoing-port-permit{COLON} { YDVAR(1, VAR_OUTGOING_PORT_PERMIT) } 219 outgoing-port-avoid{COLON} { YDVAR(1, VAR_OUTGOING_PORT_AVOID) } 220 outgoing-num-tcp{COLON} { YDVAR(1, VAR_OUTGOING_NUM_TCP) } 221 incoming-num-tcp{COLON} { YDVAR(1, VAR_INCOMING_NUM_TCP) } 222 do-ip4{COLON} { YDVAR(1, VAR_DO_IP4) } 223 do-ip6{COLON} { YDVAR(1, VAR_DO_IP6) } 224 prefer-ip6{COLON} { YDVAR(1, VAR_PREFER_IP6) } 225 do-udp{COLON} { YDVAR(1, VAR_DO_UDP) } 226 do-tcp{COLON} { YDVAR(1, VAR_DO_TCP) } 227 tcp-upstream{COLON} { YDVAR(1, VAR_TCP_UPSTREAM) } 228 tcp-mss{COLON} { YDVAR(1, VAR_TCP_MSS) } 229 outgoing-tcp-mss{COLON} { YDVAR(1, VAR_OUTGOING_TCP_MSS) } 230 tcp-idle-timeout{COLON} { YDVAR(1, VAR_TCP_IDLE_TIMEOUT) } 231 edns-tcp-keepalive{COLON} { YDVAR(1, VAR_EDNS_TCP_KEEPALIVE) } 232 edns-tcp-keepalive-timeout{COLON} { YDVAR(1, VAR_EDNS_TCP_KEEPALIVE_TIMEOUT) } 233 ssl-upstream{COLON} { YDVAR(1, VAR_SSL_UPSTREAM) } 234 tls-upstream{COLON} { YDVAR(1, VAR_SSL_UPSTREAM) } 235 ssl-service-key{COLON} { YDVAR(1, VAR_SSL_SERVICE_KEY) } 236 tls-service-key{COLON} { YDVAR(1, VAR_SSL_SERVICE_KEY) } 237 ssl-service-pem{COLON} { YDVAR(1, VAR_SSL_SERVICE_PEM) } 238 tls-service-pem{COLON} { YDVAR(1, VAR_SSL_SERVICE_PEM) } 239 ssl-port{COLON} { YDVAR(1, VAR_SSL_PORT) } 240 tls-port{COLON} { YDVAR(1, VAR_SSL_PORT) } 241 ssl-cert-bundle{COLON} { YDVAR(1, VAR_TLS_CERT_BUNDLE) } 242 tls-cert-bundle{COLON} { YDVAR(1, VAR_TLS_CERT_BUNDLE) } 243 tls-win-cert{COLON} { YDVAR(1, VAR_TLS_WIN_CERT) } 244 additional-ssl-port{COLON} { YDVAR(1, VAR_TLS_ADDITIONAL_PORT) } 245 additional-tls-port{COLON} { YDVAR(1, VAR_TLS_ADDITIONAL_PORT) } 246 tls-additional-ports{COLON} { YDVAR(1, VAR_TLS_ADDITIONAL_PORT) } 247 tls-additional-port{COLON} { YDVAR(1, VAR_TLS_ADDITIONAL_PORT) } 248 tls-session-ticket-keys{COLON} { YDVAR(1, VAR_TLS_SESSION_TICKET_KEYS) } 249 tls-ciphers{COLON} { YDVAR(1, VAR_TLS_CIPHERS) } 250 tls-ciphersuites{COLON} { YDVAR(1, VAR_TLS_CIPHERSUITES) } 251 use-systemd{COLON} { YDVAR(1, VAR_USE_SYSTEMD) } 252 do-daemonize{COLON} { YDVAR(1, VAR_DO_DAEMONIZE) } 253 interface{COLON} { YDVAR(1, VAR_INTERFACE) } 254 ip-address{COLON} { YDVAR(1, VAR_INTERFACE) } 255 outgoing-interface{COLON} { YDVAR(1, VAR_OUTGOING_INTERFACE) } 256 interface-automatic{COLON} { YDVAR(1, VAR_INTERFACE_AUTOMATIC) } 257 so-rcvbuf{COLON} { YDVAR(1, VAR_SO_RCVBUF) } 258 so-sndbuf{COLON} { YDVAR(1, VAR_SO_SNDBUF) } 259 so-reuseport{COLON} { YDVAR(1, VAR_SO_REUSEPORT) } 260 ip-transparent{COLON} { YDVAR(1, VAR_IP_TRANSPARENT) } 261 ip-freebind{COLON} { YDVAR(1, VAR_IP_FREEBIND) } 262 chroot{COLON} { YDVAR(1, VAR_CHROOT) } 263 username{COLON} { YDVAR(1, VAR_USERNAME) } 264 directory{COLON} { YDVAR(1, VAR_DIRECTORY) } 265 logfile{COLON} { YDVAR(1, VAR_LOGFILE) } 266 pidfile{COLON} { YDVAR(1, VAR_PIDFILE) } 267 root-hints{COLON} { YDVAR(1, VAR_ROOT_HINTS) } 268 stream-wait-size{COLON} { YDVAR(1, VAR_STREAM_WAIT_SIZE) } 269 edns-buffer-size{COLON} { YDVAR(1, VAR_EDNS_BUFFER_SIZE) } 270 msg-buffer-size{COLON} { YDVAR(1, VAR_MSG_BUFFER_SIZE) } 271 msg-cache-size{COLON} { YDVAR(1, VAR_MSG_CACHE_SIZE) } 272 msg-cache-slabs{COLON} { YDVAR(1, VAR_MSG_CACHE_SLABS) } 273 rrset-cache-size{COLON} { YDVAR(1, VAR_RRSET_CACHE_SIZE) } 274 rrset-cache-slabs{COLON} { YDVAR(1, VAR_RRSET_CACHE_SLABS) } 275 cache-max-ttl{COLON} { YDVAR(1, VAR_CACHE_MAX_TTL) } 276 cache-max-negative-ttl{COLON} { YDVAR(1, VAR_CACHE_MAX_NEGATIVE_TTL) } 277 cache-min-ttl{COLON} { YDVAR(1, VAR_CACHE_MIN_TTL) } 278 infra-host-ttl{COLON} { YDVAR(1, VAR_INFRA_HOST_TTL) } 279 infra-lame-ttl{COLON} { YDVAR(1, VAR_INFRA_LAME_TTL) } 280 infra-cache-slabs{COLON} { YDVAR(1, VAR_INFRA_CACHE_SLABS) } 281 infra-cache-numhosts{COLON} { YDVAR(1, VAR_INFRA_CACHE_NUMHOSTS) } 282 infra-cache-lame-size{COLON} { YDVAR(1, VAR_INFRA_CACHE_LAME_SIZE) } 283 infra-cache-min-rtt{COLON} { YDVAR(1, VAR_INFRA_CACHE_MIN_RTT) } 284 num-queries-per-thread{COLON} { YDVAR(1, VAR_NUM_QUERIES_PER_THREAD) } 285 jostle-timeout{COLON} { YDVAR(1, VAR_JOSTLE_TIMEOUT) } 286 delay-close{COLON} { YDVAR(1, VAR_DELAY_CLOSE) } 287 target-fetch-policy{COLON} { YDVAR(1, VAR_TARGET_FETCH_POLICY) } 288 harden-short-bufsize{COLON} { YDVAR(1, VAR_HARDEN_SHORT_BUFSIZE) } 289 harden-large-queries{COLON} { YDVAR(1, VAR_HARDEN_LARGE_QUERIES) } 290 harden-glue{COLON} { YDVAR(1, VAR_HARDEN_GLUE) } 291 harden-dnssec-stripped{COLON} { YDVAR(1, VAR_HARDEN_DNSSEC_STRIPPED) } 292 harden-below-nxdomain{COLON} { YDVAR(1, VAR_HARDEN_BELOW_NXDOMAIN) } 293 harden-referral-path{COLON} { YDVAR(1, VAR_HARDEN_REFERRAL_PATH) } 294 harden-algo-downgrade{COLON} { YDVAR(1, VAR_HARDEN_ALGO_DOWNGRADE) } 295 use-caps-for-id{COLON} { YDVAR(1, VAR_USE_CAPS_FOR_ID) } 296 caps-whitelist{COLON} { YDVAR(1, VAR_CAPS_WHITELIST) } 297 unwanted-reply-threshold{COLON} { YDVAR(1, VAR_UNWANTED_REPLY_THRESHOLD) } 298 private-address{COLON} { YDVAR(1, VAR_PRIVATE_ADDRESS) } 299 private-domain{COLON} { YDVAR(1, VAR_PRIVATE_DOMAIN) } 300 prefetch-key{COLON} { YDVAR(1, VAR_PREFETCH_KEY) } 301 prefetch{COLON} { YDVAR(1, VAR_PREFETCH) } 302 deny-any{COLON} { YDVAR(1, VAR_DENY_ANY) } 303 stub-zone{COLON} { YDVAR(0, VAR_STUB_ZONE) } 304 name{COLON} { YDVAR(1, VAR_NAME) } 305 stub-addr{COLON} { YDVAR(1, VAR_STUB_ADDR) } 306 stub-host{COLON} { YDVAR(1, VAR_STUB_HOST) } 307 stub-prime{COLON} { YDVAR(1, VAR_STUB_PRIME) } 308 stub-first{COLON} { YDVAR(1, VAR_STUB_FIRST) } 309 stub-no-cache{COLON} { YDVAR(1, VAR_STUB_NO_CACHE) } 310 stub-ssl-upstream{COLON} { YDVAR(1, VAR_STUB_SSL_UPSTREAM) } 311 stub-tls-upstream{COLON} { YDVAR(1, VAR_STUB_SSL_UPSTREAM) } 312 forward-zone{COLON} { YDVAR(0, VAR_FORWARD_ZONE) } 313 forward-addr{COLON} { YDVAR(1, VAR_FORWARD_ADDR) } 314 forward-host{COLON} { YDVAR(1, VAR_FORWARD_HOST) } 315 forward-first{COLON} { YDVAR(1, VAR_FORWARD_FIRST) } 316 forward-no-cache{COLON} { YDVAR(1, VAR_FORWARD_NO_CACHE) } 317 forward-ssl-upstream{COLON} { YDVAR(1, VAR_FORWARD_SSL_UPSTREAM) } 318 forward-tls-upstream{COLON} { YDVAR(1, VAR_FORWARD_SSL_UPSTREAM) } 319 auth-zone{COLON} { YDVAR(0, VAR_AUTH_ZONE) } 320 rpz{COLON} { YDVAR(0, VAR_RPZ) } 321 tags{COLON} { YDVAR(1, VAR_TAGS) } 322 rpz-action-override{COLON} { YDVAR(1, VAR_RPZ_ACTION_OVERRIDE) } 323 rpz-cname-override{COLON} { YDVAR(1, VAR_RPZ_CNAME_OVERRIDE) } 324 rpz-log{COLON} { YDVAR(1, VAR_RPZ_LOG) } 325 rpz-log-name{COLON} { YDVAR(1, VAR_RPZ_LOG_NAME) } 326 zonefile{COLON} { YDVAR(1, VAR_ZONEFILE) } 327 master{COLON} { YDVAR(1, VAR_MASTER) } 328 url{COLON} { YDVAR(1, VAR_URL) } 329 allow-notify{COLON} { YDVAR(1, VAR_ALLOW_NOTIFY) } 330 for-downstream{COLON} { YDVAR(1, VAR_FOR_DOWNSTREAM) } 331 for-upstream{COLON} { YDVAR(1, VAR_FOR_UPSTREAM) } 332 fallback-enabled{COLON} { YDVAR(1, VAR_FALLBACK_ENABLED) } 333 view{COLON} { YDVAR(0, VAR_VIEW) } 334 view-first{COLON} { YDVAR(1, VAR_VIEW_FIRST) } 335 do-not-query-address{COLON} { YDVAR(1, VAR_DO_NOT_QUERY_ADDRESS) } 336 do-not-query-localhost{COLON} { YDVAR(1, VAR_DO_NOT_QUERY_LOCALHOST) } 337 access-control{COLON} { YDVAR(2, VAR_ACCESS_CONTROL) } 338 send-client-subnet{COLON} { YDVAR(1, VAR_SEND_CLIENT_SUBNET) } 339 client-subnet-zone{COLON} { YDVAR(1, VAR_CLIENT_SUBNET_ZONE) } 340 client-subnet-always-forward{COLON} { YDVAR(1, VAR_CLIENT_SUBNET_ALWAYS_FORWARD) } 341 client-subnet-opcode{COLON} { YDVAR(1, VAR_CLIENT_SUBNET_OPCODE) } 342 max-client-subnet-ipv4{COLON} { YDVAR(1, VAR_MAX_CLIENT_SUBNET_IPV4) } 343 max-client-subnet-ipv6{COLON} { YDVAR(1, VAR_MAX_CLIENT_SUBNET_IPV6) } 344 min-client-subnet-ipv4{COLON} { YDVAR(1, VAR_MIN_CLIENT_SUBNET_IPV4) } 345 min-client-subnet-ipv6{COLON} { YDVAR(1, VAR_MIN_CLIENT_SUBNET_IPV6) } 346 max-ecs-tree-size-ipv4{COLON} { YDVAR(1, VAR_MAX_ECS_TREE_SIZE_IPV4) } 347 max-ecs-tree-size-ipv6{COLON} { YDVAR(1, VAR_MAX_ECS_TREE_SIZE_IPV6) } 348 hide-identity{COLON} { YDVAR(1, VAR_HIDE_IDENTITY) } 349 hide-version{COLON} { YDVAR(1, VAR_HIDE_VERSION) } 350 hide-trustanchor{COLON} { YDVAR(1, VAR_HIDE_TRUSTANCHOR) } 351 identity{COLON} { YDVAR(1, VAR_IDENTITY) } 352 version{COLON} { YDVAR(1, VAR_VERSION) } 353 module-config{COLON} { YDVAR(1, VAR_MODULE_CONF) } 354 dlv-anchor{COLON} { YDVAR(1, VAR_DLV_ANCHOR) } 355 dlv-anchor-file{COLON} { YDVAR(1, VAR_DLV_ANCHOR_FILE) } 356 trust-anchor-file{COLON} { YDVAR(1, VAR_TRUST_ANCHOR_FILE) } 357 auto-trust-anchor-file{COLON} { YDVAR(1, VAR_AUTO_TRUST_ANCHOR_FILE) } 358 trusted-keys-file{COLON} { YDVAR(1, VAR_TRUSTED_KEYS_FILE) } 359 trust-anchor{COLON} { YDVAR(1, VAR_TRUST_ANCHOR) } 360 trust-anchor-signaling{COLON} { YDVAR(1, VAR_TRUST_ANCHOR_SIGNALING) } 361 root-key-sentinel{COLON} { YDVAR(1, VAR_ROOT_KEY_SENTINEL) } 362 val-override-date{COLON} { YDVAR(1, VAR_VAL_OVERRIDE_DATE) } 363 val-sig-skew-min{COLON} { YDVAR(1, VAR_VAL_SIG_SKEW_MIN) } 364 val-sig-skew-max{COLON} { YDVAR(1, VAR_VAL_SIG_SKEW_MAX) } 365 val-bogus-ttl{COLON} { YDVAR(1, VAR_BOGUS_TTL) } 366 val-clean-additional{COLON} { YDVAR(1, VAR_VAL_CLEAN_ADDITIONAL) } 367 val-permissive-mode{COLON} { YDVAR(1, VAR_VAL_PERMISSIVE_MODE) } 368 aggressive-nsec{COLON} { YDVAR(1, VAR_AGGRESSIVE_NSEC) } 369 ignore-cd-flag{COLON} { YDVAR(1, VAR_IGNORE_CD_FLAG) } 370 serve-expired{COLON} { YDVAR(1, VAR_SERVE_EXPIRED) } 371 serve-expired-ttl{COLON} { YDVAR(1, VAR_SERVE_EXPIRED_TTL) } 372 serve-expired-ttl-reset{COLON} { YDVAR(1, VAR_SERVE_EXPIRED_TTL_RESET) } 373 serve-expired-reply-ttl{COLON} { YDVAR(1, VAR_SERVE_EXPIRED_REPLY_TTL) } 374 serve-expired-client-timeout{COLON} { YDVAR(1, VAR_SERVE_EXPIRED_CLIENT_TIMEOUT) } 375 fake-dsa{COLON} { YDVAR(1, VAR_FAKE_DSA) } 376 fake-sha1{COLON} { YDVAR(1, VAR_FAKE_SHA1) } 377 val-log-level{COLON} { YDVAR(1, VAR_VAL_LOG_LEVEL) } 378 key-cache-size{COLON} { YDVAR(1, VAR_KEY_CACHE_SIZE) } 379 key-cache-slabs{COLON} { YDVAR(1, VAR_KEY_CACHE_SLABS) } 380 neg-cache-size{COLON} { YDVAR(1, VAR_NEG_CACHE_SIZE) } 381 val-nsec3-keysize-iterations{COLON} { 382 YDVAR(1, VAR_VAL_NSEC3_KEYSIZE_ITERATIONS) } 383 add-holddown{COLON} { YDVAR(1, VAR_ADD_HOLDDOWN) } 384 del-holddown{COLON} { YDVAR(1, VAR_DEL_HOLDDOWN) } 385 keep-missing{COLON} { YDVAR(1, VAR_KEEP_MISSING) } 386 permit-small-holddown{COLON} { YDVAR(1, VAR_PERMIT_SMALL_HOLDDOWN) } 387 use-syslog{COLON} { YDVAR(1, VAR_USE_SYSLOG) } 388 log-identity{COLON} { YDVAR(1, VAR_LOG_IDENTITY) } 389 log-time-ascii{COLON} { YDVAR(1, VAR_LOG_TIME_ASCII) } 390 log-queries{COLON} { YDVAR(1, VAR_LOG_QUERIES) } 391 log-replies{COLON} { YDVAR(1, VAR_LOG_REPLIES) } 392 log-tag-queryreply{COLON} { YDVAR(1, VAR_LOG_TAG_QUERYREPLY) } 393 log-local-actions{COLON} { YDVAR(1, VAR_LOG_LOCAL_ACTIONS) } 394 log-servfail{COLON} { YDVAR(1, VAR_LOG_SERVFAIL) } 395 local-zone{COLON} { YDVAR(2, VAR_LOCAL_ZONE) } 396 local-data{COLON} { YDVAR(1, VAR_LOCAL_DATA) } 397 local-data-ptr{COLON} { YDVAR(1, VAR_LOCAL_DATA_PTR) } 398 unblock-lan-zones{COLON} { YDVAR(1, VAR_UNBLOCK_LAN_ZONES) } 399 insecure-lan-zones{COLON} { YDVAR(1, VAR_INSECURE_LAN_ZONES) } 400 statistics-interval{COLON} { YDVAR(1, VAR_STATISTICS_INTERVAL) } 401 statistics-cumulative{COLON} { YDVAR(1, VAR_STATISTICS_CUMULATIVE) } 402 extended-statistics{COLON} { YDVAR(1, VAR_EXTENDED_STATISTICS) } 403 shm-enable{COLON} { YDVAR(1, VAR_SHM_ENABLE) } 404 shm-key{COLON} { YDVAR(1, VAR_SHM_KEY) } 405 remote-control{COLON} { YDVAR(0, VAR_REMOTE_CONTROL) } 406 control-enable{COLON} { YDVAR(1, VAR_CONTROL_ENABLE) } 407 control-interface{COLON} { YDVAR(1, VAR_CONTROL_INTERFACE) } 408 control-port{COLON} { YDVAR(1, VAR_CONTROL_PORT) } 409 control-use-cert{COLON} { YDVAR(1, VAR_CONTROL_USE_CERT) } 410 server-key-file{COLON} { YDVAR(1, VAR_SERVER_KEY_FILE) } 411 server-cert-file{COLON} { YDVAR(1, VAR_SERVER_CERT_FILE) } 412 control-key-file{COLON} { YDVAR(1, VAR_CONTROL_KEY_FILE) } 413 control-cert-file{COLON} { YDVAR(1, VAR_CONTROL_CERT_FILE) } 414 python-script{COLON} { YDVAR(1, VAR_PYTHON_SCRIPT) } 415 python{COLON} { YDVAR(0, VAR_PYTHON) } 416 domain-insecure{COLON} { YDVAR(1, VAR_DOMAIN_INSECURE) } 417 minimal-responses{COLON} { YDVAR(1, VAR_MINIMAL_RESPONSES) } 418 rrset-roundrobin{COLON} { YDVAR(1, VAR_RRSET_ROUNDROBIN) } 419 unknown-server-time-limit{COLON} { YDVAR(1, VAR_UNKNOWN_SERVER_TIME_LIMIT) } 420 max-udp-size{COLON} { YDVAR(1, VAR_MAX_UDP_SIZE) } 421 dns64-prefix{COLON} { YDVAR(1, VAR_DNS64_PREFIX) } 422 dns64-synthall{COLON} { YDVAR(1, VAR_DNS64_SYNTHALL) } 423 dns64-ignore-aaaa{COLON} { YDVAR(1, VAR_DNS64_IGNORE_AAAA) } 424 define-tag{COLON} { YDVAR(1, VAR_DEFINE_TAG) } 425 local-zone-tag{COLON} { YDVAR(2, VAR_LOCAL_ZONE_TAG) } 426 access-control-tag{COLON} { YDVAR(2, VAR_ACCESS_CONTROL_TAG) } 427 access-control-tag-action{COLON} { YDVAR(3, VAR_ACCESS_CONTROL_TAG_ACTION) } 428 access-control-tag-data{COLON} { YDVAR(3, VAR_ACCESS_CONTROL_TAG_DATA) } 429 access-control-view{COLON} { YDVAR(2, VAR_ACCESS_CONTROL_VIEW) } 430 local-zone-override{COLON} { YDVAR(3, VAR_LOCAL_ZONE_OVERRIDE) } 431 dnstap{COLON} { YDVAR(0, VAR_DNSTAP) } 432 dnstap-enable{COLON} { YDVAR(1, VAR_DNSTAP_ENABLE) } 433 dnstap-socket-path{COLON} { YDVAR(1, VAR_DNSTAP_SOCKET_PATH) } 434 dnstap-send-identity{COLON} { YDVAR(1, VAR_DNSTAP_SEND_IDENTITY) } 435 dnstap-send-version{COLON} { YDVAR(1, VAR_DNSTAP_SEND_VERSION) } 436 dnstap-identity{COLON} { YDVAR(1, VAR_DNSTAP_IDENTITY) } 437 dnstap-version{COLON} { YDVAR(1, VAR_DNSTAP_VERSION) } 438 dnstap-log-resolver-query-messages{COLON} { 439 YDVAR(1, VAR_DNSTAP_LOG_RESOLVER_QUERY_MESSAGES) } 440 dnstap-log-resolver-response-messages{COLON} { 441 YDVAR(1, VAR_DNSTAP_LOG_RESOLVER_RESPONSE_MESSAGES) } 442 dnstap-log-client-query-messages{COLON} { 443 YDVAR(1, VAR_DNSTAP_LOG_CLIENT_QUERY_MESSAGES) } 444 dnstap-log-client-response-messages{COLON} { 445 YDVAR(1, VAR_DNSTAP_LOG_CLIENT_RESPONSE_MESSAGES) } 446 dnstap-log-forwarder-query-messages{COLON} { 447 YDVAR(1, VAR_DNSTAP_LOG_FORWARDER_QUERY_MESSAGES) } 448 dnstap-log-forwarder-response-messages{COLON} { 449 YDVAR(1, VAR_DNSTAP_LOG_FORWARDER_RESPONSE_MESSAGES) } 450 disable-dnssec-lame-check{COLON} { YDVAR(1, VAR_DISABLE_DNSSEC_LAME_CHECK) } 451 ip-ratelimit{COLON} { YDVAR(1, VAR_IP_RATELIMIT) } 452 ratelimit{COLON} { YDVAR(1, VAR_RATELIMIT) } 453 ip-ratelimit-slabs{COLON} { YDVAR(1, VAR_IP_RATELIMIT_SLABS) } 454 ratelimit-slabs{COLON} { YDVAR(1, VAR_RATELIMIT_SLABS) } 455 ip-ratelimit-size{COLON} { YDVAR(1, VAR_IP_RATELIMIT_SIZE) } 456 ratelimit-size{COLON} { YDVAR(1, VAR_RATELIMIT_SIZE) } 457 ratelimit-for-domain{COLON} { YDVAR(2, VAR_RATELIMIT_FOR_DOMAIN) } 458 ratelimit-below-domain{COLON} { YDVAR(2, VAR_RATELIMIT_BELOW_DOMAIN) } 459 ip-ratelimit-factor{COLON} { YDVAR(1, VAR_IP_RATELIMIT_FACTOR) } 460 ratelimit-factor{COLON} { YDVAR(1, VAR_RATELIMIT_FACTOR) } 461 low-rtt{COLON} { YDVAR(1, VAR_LOW_RTT) } 462 fast-server-num{COLON} { YDVAR(1, VAR_FAST_SERVER_NUM) } 463 low-rtt-pct{COLON} { YDVAR(1, VAR_FAST_SERVER_PERMIL) } 464 low-rtt-permil{COLON} { YDVAR(1, VAR_FAST_SERVER_PERMIL) } 465 fast-server-permil{COLON} { YDVAR(1, VAR_FAST_SERVER_PERMIL) } 466 response-ip-tag{COLON} { YDVAR(2, VAR_RESPONSE_IP_TAG) } 467 response-ip{COLON} { YDVAR(2, VAR_RESPONSE_IP) } 468 response-ip-data{COLON} { YDVAR(2, VAR_RESPONSE_IP_DATA) } 469 dnscrypt{COLON} { YDVAR(0, VAR_DNSCRYPT) } 470 dnscrypt-enable{COLON} { YDVAR(1, VAR_DNSCRYPT_ENABLE) } 471 dnscrypt-port{COLON} { YDVAR(1, VAR_DNSCRYPT_PORT) } 472 dnscrypt-provider{COLON} { YDVAR(1, VAR_DNSCRYPT_PROVIDER) } 473 dnscrypt-secret-key{COLON} { YDVAR(1, VAR_DNSCRYPT_SECRET_KEY) } 474 dnscrypt-provider-cert{COLON} { YDVAR(1, VAR_DNSCRYPT_PROVIDER_CERT) } 475 dnscrypt-provider-cert-rotated{COLON} { YDVAR(1, VAR_DNSCRYPT_PROVIDER_CERT_ROTATED) } 476 dnscrypt-shared-secret-cache-size{COLON} { 477 YDVAR(1, VAR_DNSCRYPT_SHARED_SECRET_CACHE_SIZE) } 478 dnscrypt-shared-secret-cache-slabs{COLON} { 479 YDVAR(1, VAR_DNSCRYPT_SHARED_SECRET_CACHE_SLABS) } 480 dnscrypt-nonce-cache-size{COLON} { YDVAR(1, VAR_DNSCRYPT_NONCE_CACHE_SIZE) } 481 dnscrypt-nonce-cache-slabs{COLON} { YDVAR(1, VAR_DNSCRYPT_NONCE_CACHE_SLABS) } 482 ipsecmod-enabled{COLON} { YDVAR(1, VAR_IPSECMOD_ENABLED) } 483 ipsecmod-ignore-bogus{COLON} { YDVAR(1, VAR_IPSECMOD_IGNORE_BOGUS) } 484 ipsecmod-hook{COLON} { YDVAR(1, VAR_IPSECMOD_HOOK) } 485 ipsecmod-max-ttl{COLON} { YDVAR(1, VAR_IPSECMOD_MAX_TTL) } 486 ipsecmod-whitelist{COLON} { YDVAR(1, VAR_IPSECMOD_WHITELIST) } 487 ipsecmod-strict{COLON} { YDVAR(1, VAR_IPSECMOD_STRICT) } 488 cachedb{COLON} { YDVAR(0, VAR_CACHEDB) } 489 backend{COLON} { YDVAR(1, VAR_CACHEDB_BACKEND) } 490 secret-seed{COLON} { YDVAR(1, VAR_CACHEDB_SECRETSEED) } 491 redis-server-host{COLON} { YDVAR(1, VAR_CACHEDB_REDISHOST) } 492 redis-server-port{COLON} { YDVAR(1, VAR_CACHEDB_REDISPORT) } 493 redis-timeout{COLON} { YDVAR(1, VAR_CACHEDB_REDISTIMEOUT) } 494 ipset{COLON} { YDVAR(0, VAR_IPSET) } 495 name-v4{COLON} { YDVAR(1, VAR_IPSET_NAME_V4) } 496 name-v6{COLON} { YDVAR(1, VAR_IPSET_NAME_V6) } 497 udp-upstream-without-downstream{COLON} { YDVAR(1, VAR_UDP_UPSTREAM_WITHOUT_DOWNSTREAM) } 498 tcp-connection-limit{COLON} { YDVAR(2, VAR_TCP_CONNECTION_LIMIT) } 499 <INITIAL,val>{NEWLINE} { LEXOUT(("NL\n")); cfg_parser->line++; } 500 501 /* Quoted strings. Strip leading and ending quotes */ 502 <val>\" { BEGIN(quotedstring); LEXOUT(("QS ")); } 503 <quotedstring><<EOF>> { 504 ub_c_error("EOF inside quoted string"); 505 if(--num_args == 0) { BEGIN(INITIAL); } 506 else { BEGIN(val); } 507 } 508 <quotedstring>{DQANY}* { LEXOUT(("STR(%s) ", ub_c_text)); yymore(); } 509 <quotedstring>{NEWLINE} { ub_c_error("newline inside quoted string, no end \""); 510 cfg_parser->line++; BEGIN(INITIAL); } 511 <quotedstring>\" { 512 LEXOUT(("QE ")); 513 if(--num_args == 0) { BEGIN(INITIAL); } 514 else { BEGIN(val); } 515 ub_c_text[ub_c_leng - 1] = '\0'; 516 ub_c_lval.str = strdup(ub_c_text); 517 if(!ub_c_lval.str) 518 ub_c_error("out of memory"); 519 return STRING_ARG; 520 } 521 522 /* Single Quoted strings. Strip leading and ending quotes */ 523 <val>\' { BEGIN(singlequotedstr); LEXOUT(("SQS ")); } 524 <singlequotedstr><<EOF>> { 525 ub_c_error("EOF inside quoted string"); 526 if(--num_args == 0) { BEGIN(INITIAL); } 527 else { BEGIN(val); } 528 } 529 <singlequotedstr>{SQANY}* { LEXOUT(("STR(%s) ", ub_c_text)); yymore(); } 530 <singlequotedstr>{NEWLINE} { ub_c_error("newline inside quoted string, no end '"); 531 cfg_parser->line++; BEGIN(INITIAL); } 532 <singlequotedstr>\' { 533 LEXOUT(("SQE ")); 534 if(--num_args == 0) { BEGIN(INITIAL); } 535 else { BEGIN(val); } 536 ub_c_text[ub_c_leng - 1] = '\0'; 537 ub_c_lval.str = strdup(ub_c_text); 538 if(!ub_c_lval.str) 539 ub_c_error("out of memory"); 540 return STRING_ARG; 541 } 542 543 /* include: directive */ 544 <INITIAL,val>include{COLON} { 545 LEXOUT(("v(%s) ", ub_c_text)); inc_prev = YYSTATE; BEGIN(include); } 546 <include><<EOF>> { 547 ub_c_error("EOF inside include directive"); 548 BEGIN(inc_prev); 549 } 550 <include>{SPACE}* { LEXOUT(("ISP ")); /* ignore */ } 551 <include>{NEWLINE} { LEXOUT(("NL\n")); cfg_parser->line++;} 552 <include>\" { LEXOUT(("IQS ")); BEGIN(include_quoted); } 553 <include>{UNQUOTEDLETTER}* { 554 LEXOUT(("Iunquotedstr(%s) ", ub_c_text)); 555 config_start_include_glob(ub_c_text); 556 BEGIN(inc_prev); 557 } 558 <include_quoted><<EOF>> { 559 ub_c_error("EOF inside quoted string"); 560 BEGIN(inc_prev); 561 } 562 <include_quoted>{DQANY}* { LEXOUT(("ISTR(%s) ", ub_c_text)); yymore(); } 563 <include_quoted>{NEWLINE} { ub_c_error("newline before \" in include name"); 564 cfg_parser->line++; BEGIN(inc_prev); } 565 <include_quoted>\" { 566 LEXOUT(("IQE ")); 567 ub_c_text[ub_c_leng - 1] = '\0'; 568 config_start_include_glob(ub_c_text); 569 BEGIN(inc_prev); 570 } 571 <INITIAL,val><<EOF>> { 572 LEXOUT(("LEXEOF ")); 573 yy_set_bol(1); /* Set beginning of line, so "^" rules match. */ 574 if (!config_include_stack) { 575 yyterminate(); 576 } else { 577 fclose(ub_c_in); 578 config_end_include(); 579 } 580 } 581 582 <val>{UNQUOTEDLETTER}* { LEXOUT(("unquotedstr(%s) ", ub_c_text)); 583 if(--num_args == 0) { BEGIN(INITIAL); } 584 ub_c_lval.str = strdup(ub_c_text); return STRING_ARG; } 585 586 {UNQUOTEDLETTER_NOCOLON}* { 587 ub_c_error_msg("unknown keyword '%s'", ub_c_text); 588 } 589 590 <*>. { 591 ub_c_error_msg("stray '%s'", ub_c_text); 592 } 593 594 %% 595