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 int inc_toplevel; 50 }; 51 static struct inc_state* config_include_stack = NULL; 52 static int inc_depth = 0; 53 static int inc_prev = 0; 54 static int num_args = 0; 55 static int inc_toplevel = 0; 56 57 void init_cfg_parse(void) 58 { 59 config_include_stack = NULL; 60 inc_depth = 0; 61 inc_prev = 0; 62 num_args = 0; 63 inc_toplevel = 0; 64 } 65 66 static void config_start_include(const char* filename, int toplevel) 67 { 68 FILE *input; 69 struct inc_state* s; 70 char* nm; 71 if(inc_depth+1 > 100000) { 72 ub_c_error_msg("too many include files"); 73 return; 74 } 75 if(*filename == '\0') { 76 ub_c_error_msg("empty include file name"); 77 return; 78 } 79 s = (struct inc_state*)malloc(sizeof(*s)); 80 if(!s) { 81 ub_c_error_msg("include %s: malloc failure", filename); 82 return; 83 } 84 if(cfg_parser->chroot && strncmp(filename, cfg_parser->chroot, 85 strlen(cfg_parser->chroot)) == 0) { 86 filename += strlen(cfg_parser->chroot); 87 } 88 nm = strdup(filename); 89 if(!nm) { 90 ub_c_error_msg("include %s: strdup failure", filename); 91 free(s); 92 return; 93 } 94 input = fopen(filename, "r"); 95 if(!input) { 96 ub_c_error_msg("cannot open include file '%s': %s", 97 filename, strerror(errno)); 98 free(s); 99 free(nm); 100 return; 101 } 102 LEXOUT(("switch_to_include_file(%s)\n", filename)); 103 inc_depth++; 104 s->filename = cfg_parser->filename; 105 s->line = cfg_parser->line; 106 s->buffer = YY_CURRENT_BUFFER; 107 s->inc_toplevel = inc_toplevel; 108 s->next = config_include_stack; 109 config_include_stack = s; 110 cfg_parser->filename = nm; 111 cfg_parser->line = 1; 112 inc_toplevel = toplevel; 113 yy_switch_to_buffer(yy_create_buffer(input, YY_BUF_SIZE)); 114 } 115 116 static void config_start_include_glob(const char* filename, int toplevel) 117 { 118 119 /* check for wildcards */ 120 #ifdef HAVE_GLOB 121 glob_t g; 122 int i, r, flags; 123 if(!(!strchr(filename, '*') && !strchr(filename, '?') && !strchr(filename, '[') && 124 !strchr(filename, '{') && !strchr(filename, '~'))) { 125 flags = 0 126 #ifdef GLOB_ERR 127 | GLOB_ERR 128 #endif 129 /* do not set GLOB_NOSORT so the results are sorted 130 and in a predictable order. */ 131 #ifdef GLOB_BRACE 132 | GLOB_BRACE 133 #endif 134 #ifdef GLOB_TILDE 135 | GLOB_TILDE 136 #endif 137 ; 138 memset(&g, 0, sizeof(g)); 139 if(cfg_parser->chroot && strncmp(filename, cfg_parser->chroot, 140 strlen(cfg_parser->chroot)) == 0) { 141 filename += strlen(cfg_parser->chroot); 142 } 143 r = glob(filename, flags, NULL, &g); 144 if(r) { 145 /* some error */ 146 globfree(&g); 147 if(r == GLOB_NOMATCH) 148 return; /* no matches for pattern */ 149 config_start_include(filename, toplevel); /* let original deal with it */ 150 return; 151 } 152 /* process files found, if any */ 153 for(i=(int)g.gl_pathc-1; i>=0; i--) { 154 config_start_include(g.gl_pathv[i], toplevel); 155 } 156 globfree(&g); 157 return; 158 } 159 #endif /* HAVE_GLOB */ 160 161 config_start_include(filename, toplevel); 162 } 163 164 static void config_end_include(void) 165 { 166 struct inc_state* s = config_include_stack; 167 --inc_depth; 168 if(!s) return; 169 free(cfg_parser->filename); 170 cfg_parser->filename = s->filename; 171 cfg_parser->line = s->line; 172 yy_delete_buffer(YY_CURRENT_BUFFER); 173 yy_switch_to_buffer(s->buffer); 174 config_include_stack = s->next; 175 inc_toplevel = s->inc_toplevel; 176 free(s); 177 } 178 179 #ifndef yy_set_bol /* compat definition, for flex 2.4.6 */ 180 #define yy_set_bol(at_bol) \ 181 { \ 182 if ( ! yy_current_buffer ) \ 183 yy_current_buffer = yy_create_buffer( ub_c_in, YY_BUF_SIZE ); \ 184 yy_current_buffer->yy_ch_buf[0] = ((at_bol)?'\n':' '); \ 185 } 186 #endif 187 188 %} 189 %option noinput 190 %option nounput 191 %{ 192 #ifndef YY_NO_UNPUT 193 #define YY_NO_UNPUT 1 194 #endif 195 #ifndef YY_NO_INPUT 196 #define YY_NO_INPUT 1 197 #endif 198 %} 199 200 SPACE [ \t] 201 LETTER [a-zA-Z] 202 UNQUOTEDLETTER [^\'\"\n\r \t\\]|\\. 203 UNQUOTEDLETTER_NOCOLON [^\:\'\"\n\r \t\\]|\\. 204 NEWLINE [\r\n] 205 COMMENT \# 206 COLON \: 207 DQANY [^\"\n\r\\]|\\. 208 SQANY [^\'\n\r\\]|\\. 209 210 %x quotedstring singlequotedstr include include_quoted val include_toplevel include_toplevel_quoted 211 212 %% 213 <INITIAL,val>{SPACE}* { 214 LEXOUT(("SP ")); /* ignore */ } 215 <INITIAL,val>{SPACE}*{COMMENT}.* { 216 /* note that flex makes the longest match and '.' is any but not nl */ 217 LEXOUT(("comment(%s) ", ub_c_text)); /* ignore */ } 218 server{COLON} { YDVAR(0, VAR_SERVER) } 219 qname-minimisation{COLON} { YDVAR(1, VAR_QNAME_MINIMISATION) } 220 qname-minimisation-strict{COLON} { YDVAR(1, VAR_QNAME_MINIMISATION_STRICT) } 221 num-threads{COLON} { YDVAR(1, VAR_NUM_THREADS) } 222 verbosity{COLON} { YDVAR(1, VAR_VERBOSITY) } 223 port{COLON} { YDVAR(1, VAR_PORT) } 224 outgoing-range{COLON} { YDVAR(1, VAR_OUTGOING_RANGE) } 225 outgoing-port-permit{COLON} { YDVAR(1, VAR_OUTGOING_PORT_PERMIT) } 226 outgoing-port-avoid{COLON} { YDVAR(1, VAR_OUTGOING_PORT_AVOID) } 227 outgoing-num-tcp{COLON} { YDVAR(1, VAR_OUTGOING_NUM_TCP) } 228 incoming-num-tcp{COLON} { YDVAR(1, VAR_INCOMING_NUM_TCP) } 229 do-ip4{COLON} { YDVAR(1, VAR_DO_IP4) } 230 do-ip6{COLON} { YDVAR(1, VAR_DO_IP6) } 231 prefer-ip4{COLON} { YDVAR(1, VAR_PREFER_IP4) } 232 prefer-ip6{COLON} { YDVAR(1, VAR_PREFER_IP6) } 233 do-udp{COLON} { YDVAR(1, VAR_DO_UDP) } 234 do-tcp{COLON} { YDVAR(1, VAR_DO_TCP) } 235 tcp-upstream{COLON} { YDVAR(1, VAR_TCP_UPSTREAM) } 236 tcp-mss{COLON} { YDVAR(1, VAR_TCP_MSS) } 237 outgoing-tcp-mss{COLON} { YDVAR(1, VAR_OUTGOING_TCP_MSS) } 238 tcp-idle-timeout{COLON} { YDVAR(1, VAR_TCP_IDLE_TIMEOUT) } 239 edns-tcp-keepalive{COLON} { YDVAR(1, VAR_EDNS_TCP_KEEPALIVE) } 240 edns-tcp-keepalive-timeout{COLON} { YDVAR(1, VAR_EDNS_TCP_KEEPALIVE_TIMEOUT) } 241 ssl-upstream{COLON} { YDVAR(1, VAR_SSL_UPSTREAM) } 242 tls-upstream{COLON} { YDVAR(1, VAR_SSL_UPSTREAM) } 243 ssl-service-key{COLON} { YDVAR(1, VAR_SSL_SERVICE_KEY) } 244 tls-service-key{COLON} { YDVAR(1, VAR_SSL_SERVICE_KEY) } 245 ssl-service-pem{COLON} { YDVAR(1, VAR_SSL_SERVICE_PEM) } 246 tls-service-pem{COLON} { YDVAR(1, VAR_SSL_SERVICE_PEM) } 247 ssl-port{COLON} { YDVAR(1, VAR_SSL_PORT) } 248 tls-port{COLON} { YDVAR(1, VAR_SSL_PORT) } 249 ssl-cert-bundle{COLON} { YDVAR(1, VAR_TLS_CERT_BUNDLE) } 250 tls-cert-bundle{COLON} { YDVAR(1, VAR_TLS_CERT_BUNDLE) } 251 tls-win-cert{COLON} { YDVAR(1, VAR_TLS_WIN_CERT) } 252 additional-ssl-port{COLON} { YDVAR(1, VAR_TLS_ADDITIONAL_PORT) } 253 additional-tls-port{COLON} { YDVAR(1, VAR_TLS_ADDITIONAL_PORT) } 254 tls-additional-ports{COLON} { YDVAR(1, VAR_TLS_ADDITIONAL_PORT) } 255 tls-additional-port{COLON} { YDVAR(1, VAR_TLS_ADDITIONAL_PORT) } 256 tls-session-ticket-keys{COLON} { YDVAR(1, VAR_TLS_SESSION_TICKET_KEYS) } 257 tls-ciphers{COLON} { YDVAR(1, VAR_TLS_CIPHERS) } 258 tls-ciphersuites{COLON} { YDVAR(1, VAR_TLS_CIPHERSUITES) } 259 tls-use-sni{COLON} { YDVAR(1, VAR_TLS_USE_SNI) } 260 https-port{COLON} { YDVAR(1, VAR_HTTPS_PORT) } 261 http-endpoint{COLON} { YDVAR(1, VAR_HTTP_ENDPOINT) } 262 http-max-streams{COLON} { YDVAR(1, VAR_HTTP_MAX_STREAMS) } 263 http-query-buffer-size{COLON} { YDVAR(1, VAR_HTTP_QUERY_BUFFER_SIZE) } 264 http-response-buffer-size{COLON} { YDVAR(1, VAR_HTTP_RESPONSE_BUFFER_SIZE) } 265 http-nodelay{COLON} { YDVAR(1, VAR_HTTP_NODELAY) } 266 use-systemd{COLON} { YDVAR(1, VAR_USE_SYSTEMD) } 267 do-daemonize{COLON} { YDVAR(1, VAR_DO_DAEMONIZE) } 268 interface{COLON} { YDVAR(1, VAR_INTERFACE) } 269 ip-address{COLON} { YDVAR(1, VAR_INTERFACE) } 270 outgoing-interface{COLON} { YDVAR(1, VAR_OUTGOING_INTERFACE) } 271 interface-automatic{COLON} { YDVAR(1, VAR_INTERFACE_AUTOMATIC) } 272 so-rcvbuf{COLON} { YDVAR(1, VAR_SO_RCVBUF) } 273 so-sndbuf{COLON} { YDVAR(1, VAR_SO_SNDBUF) } 274 so-reuseport{COLON} { YDVAR(1, VAR_SO_REUSEPORT) } 275 ip-transparent{COLON} { YDVAR(1, VAR_IP_TRANSPARENT) } 276 ip-freebind{COLON} { YDVAR(1, VAR_IP_FREEBIND) } 277 ip-dscp{COLON} { YDVAR(1, VAR_IP_DSCP) } 278 chroot{COLON} { YDVAR(1, VAR_CHROOT) } 279 username{COLON} { YDVAR(1, VAR_USERNAME) } 280 directory{COLON} { YDVAR(1, VAR_DIRECTORY) } 281 logfile{COLON} { YDVAR(1, VAR_LOGFILE) } 282 pidfile{COLON} { YDVAR(1, VAR_PIDFILE) } 283 root-hints{COLON} { YDVAR(1, VAR_ROOT_HINTS) } 284 stream-wait-size{COLON} { YDVAR(1, VAR_STREAM_WAIT_SIZE) } 285 edns-buffer-size{COLON} { YDVAR(1, VAR_EDNS_BUFFER_SIZE) } 286 msg-buffer-size{COLON} { YDVAR(1, VAR_MSG_BUFFER_SIZE) } 287 msg-cache-size{COLON} { YDVAR(1, VAR_MSG_CACHE_SIZE) } 288 msg-cache-slabs{COLON} { YDVAR(1, VAR_MSG_CACHE_SLABS) } 289 rrset-cache-size{COLON} { YDVAR(1, VAR_RRSET_CACHE_SIZE) } 290 rrset-cache-slabs{COLON} { YDVAR(1, VAR_RRSET_CACHE_SLABS) } 291 cache-max-ttl{COLON} { YDVAR(1, VAR_CACHE_MAX_TTL) } 292 cache-max-negative-ttl{COLON} { YDVAR(1, VAR_CACHE_MAX_NEGATIVE_TTL) } 293 cache-min-ttl{COLON} { YDVAR(1, VAR_CACHE_MIN_TTL) } 294 infra-host-ttl{COLON} { YDVAR(1, VAR_INFRA_HOST_TTL) } 295 infra-lame-ttl{COLON} { YDVAR(1, VAR_INFRA_LAME_TTL) } 296 infra-cache-slabs{COLON} { YDVAR(1, VAR_INFRA_CACHE_SLABS) } 297 infra-cache-numhosts{COLON} { YDVAR(1, VAR_INFRA_CACHE_NUMHOSTS) } 298 infra-cache-lame-size{COLON} { YDVAR(1, VAR_INFRA_CACHE_LAME_SIZE) } 299 infra-cache-min-rtt{COLON} { YDVAR(1, VAR_INFRA_CACHE_MIN_RTT) } 300 num-queries-per-thread{COLON} { YDVAR(1, VAR_NUM_QUERIES_PER_THREAD) } 301 jostle-timeout{COLON} { YDVAR(1, VAR_JOSTLE_TIMEOUT) } 302 delay-close{COLON} { YDVAR(1, VAR_DELAY_CLOSE) } 303 target-fetch-policy{COLON} { YDVAR(1, VAR_TARGET_FETCH_POLICY) } 304 harden-short-bufsize{COLON} { YDVAR(1, VAR_HARDEN_SHORT_BUFSIZE) } 305 harden-large-queries{COLON} { YDVAR(1, VAR_HARDEN_LARGE_QUERIES) } 306 harden-glue{COLON} { YDVAR(1, VAR_HARDEN_GLUE) } 307 harden-dnssec-stripped{COLON} { YDVAR(1, VAR_HARDEN_DNSSEC_STRIPPED) } 308 harden-below-nxdomain{COLON} { YDVAR(1, VAR_HARDEN_BELOW_NXDOMAIN) } 309 harden-referral-path{COLON} { YDVAR(1, VAR_HARDEN_REFERRAL_PATH) } 310 harden-algo-downgrade{COLON} { YDVAR(1, VAR_HARDEN_ALGO_DOWNGRADE) } 311 use-caps-for-id{COLON} { YDVAR(1, VAR_USE_CAPS_FOR_ID) } 312 caps-whitelist{COLON} { YDVAR(1, VAR_CAPS_WHITELIST) } 313 caps-exempt{COLON} { YDVAR(1, VAR_CAPS_WHITELIST) } 314 unwanted-reply-threshold{COLON} { YDVAR(1, VAR_UNWANTED_REPLY_THRESHOLD) } 315 private-address{COLON} { YDVAR(1, VAR_PRIVATE_ADDRESS) } 316 private-domain{COLON} { YDVAR(1, VAR_PRIVATE_DOMAIN) } 317 prefetch-key{COLON} { YDVAR(1, VAR_PREFETCH_KEY) } 318 prefetch{COLON} { YDVAR(1, VAR_PREFETCH) } 319 deny-any{COLON} { YDVAR(1, VAR_DENY_ANY) } 320 stub-zone{COLON} { YDVAR(0, VAR_STUB_ZONE) } 321 name{COLON} { YDVAR(1, VAR_NAME) } 322 stub-addr{COLON} { YDVAR(1, VAR_STUB_ADDR) } 323 stub-host{COLON} { YDVAR(1, VAR_STUB_HOST) } 324 stub-prime{COLON} { YDVAR(1, VAR_STUB_PRIME) } 325 stub-first{COLON} { YDVAR(1, VAR_STUB_FIRST) } 326 stub-no-cache{COLON} { YDVAR(1, VAR_STUB_NO_CACHE) } 327 stub-ssl-upstream{COLON} { YDVAR(1, VAR_STUB_SSL_UPSTREAM) } 328 stub-tls-upstream{COLON} { YDVAR(1, VAR_STUB_SSL_UPSTREAM) } 329 forward-zone{COLON} { YDVAR(0, VAR_FORWARD_ZONE) } 330 forward-addr{COLON} { YDVAR(1, VAR_FORWARD_ADDR) } 331 forward-host{COLON} { YDVAR(1, VAR_FORWARD_HOST) } 332 forward-first{COLON} { YDVAR(1, VAR_FORWARD_FIRST) } 333 forward-no-cache{COLON} { YDVAR(1, VAR_FORWARD_NO_CACHE) } 334 forward-ssl-upstream{COLON} { YDVAR(1, VAR_FORWARD_SSL_UPSTREAM) } 335 forward-tls-upstream{COLON} { YDVAR(1, VAR_FORWARD_SSL_UPSTREAM) } 336 auth-zone{COLON} { YDVAR(0, VAR_AUTH_ZONE) } 337 rpz{COLON} { YDVAR(0, VAR_RPZ) } 338 tags{COLON} { YDVAR(1, VAR_TAGS) } 339 rpz-action-override{COLON} { YDVAR(1, VAR_RPZ_ACTION_OVERRIDE) } 340 rpz-cname-override{COLON} { YDVAR(1, VAR_RPZ_CNAME_OVERRIDE) } 341 rpz-log{COLON} { YDVAR(1, VAR_RPZ_LOG) } 342 rpz-log-name{COLON} { YDVAR(1, VAR_RPZ_LOG_NAME) } 343 zonefile{COLON} { YDVAR(1, VAR_ZONEFILE) } 344 master{COLON} { YDVAR(1, VAR_MASTER) } 345 primary{COLON} { YDVAR(1, VAR_MASTER) } 346 url{COLON} { YDVAR(1, VAR_URL) } 347 allow-notify{COLON} { YDVAR(1, VAR_ALLOW_NOTIFY) } 348 for-downstream{COLON} { YDVAR(1, VAR_FOR_DOWNSTREAM) } 349 for-upstream{COLON} { YDVAR(1, VAR_FOR_UPSTREAM) } 350 fallback-enabled{COLON} { YDVAR(1, VAR_FALLBACK_ENABLED) } 351 view{COLON} { YDVAR(0, VAR_VIEW) } 352 view-first{COLON} { YDVAR(1, VAR_VIEW_FIRST) } 353 do-not-query-address{COLON} { YDVAR(1, VAR_DO_NOT_QUERY_ADDRESS) } 354 do-not-query-localhost{COLON} { YDVAR(1, VAR_DO_NOT_QUERY_LOCALHOST) } 355 access-control{COLON} { YDVAR(2, VAR_ACCESS_CONTROL) } 356 send-client-subnet{COLON} { YDVAR(1, VAR_SEND_CLIENT_SUBNET) } 357 client-subnet-zone{COLON} { YDVAR(1, VAR_CLIENT_SUBNET_ZONE) } 358 client-subnet-always-forward{COLON} { YDVAR(1, VAR_CLIENT_SUBNET_ALWAYS_FORWARD) } 359 client-subnet-opcode{COLON} { YDVAR(1, VAR_CLIENT_SUBNET_OPCODE) } 360 max-client-subnet-ipv4{COLON} { YDVAR(1, VAR_MAX_CLIENT_SUBNET_IPV4) } 361 max-client-subnet-ipv6{COLON} { YDVAR(1, VAR_MAX_CLIENT_SUBNET_IPV6) } 362 min-client-subnet-ipv4{COLON} { YDVAR(1, VAR_MIN_CLIENT_SUBNET_IPV4) } 363 min-client-subnet-ipv6{COLON} { YDVAR(1, VAR_MIN_CLIENT_SUBNET_IPV6) } 364 max-ecs-tree-size-ipv4{COLON} { YDVAR(1, VAR_MAX_ECS_TREE_SIZE_IPV4) } 365 max-ecs-tree-size-ipv6{COLON} { YDVAR(1, VAR_MAX_ECS_TREE_SIZE_IPV6) } 366 hide-identity{COLON} { YDVAR(1, VAR_HIDE_IDENTITY) } 367 hide-version{COLON} { YDVAR(1, VAR_HIDE_VERSION) } 368 hide-trustanchor{COLON} { YDVAR(1, VAR_HIDE_TRUSTANCHOR) } 369 identity{COLON} { YDVAR(1, VAR_IDENTITY) } 370 version{COLON} { YDVAR(1, VAR_VERSION) } 371 module-config{COLON} { YDVAR(1, VAR_MODULE_CONF) } 372 dlv-anchor{COLON} { YDVAR(1, VAR_DLV_ANCHOR) } 373 dlv-anchor-file{COLON} { YDVAR(1, VAR_DLV_ANCHOR_FILE) } 374 trust-anchor-file{COLON} { YDVAR(1, VAR_TRUST_ANCHOR_FILE) } 375 auto-trust-anchor-file{COLON} { YDVAR(1, VAR_AUTO_TRUST_ANCHOR_FILE) } 376 trusted-keys-file{COLON} { YDVAR(1, VAR_TRUSTED_KEYS_FILE) } 377 trust-anchor{COLON} { YDVAR(1, VAR_TRUST_ANCHOR) } 378 trust-anchor-signaling{COLON} { YDVAR(1, VAR_TRUST_ANCHOR_SIGNALING) } 379 root-key-sentinel{COLON} { YDVAR(1, VAR_ROOT_KEY_SENTINEL) } 380 val-override-date{COLON} { YDVAR(1, VAR_VAL_OVERRIDE_DATE) } 381 val-sig-skew-min{COLON} { YDVAR(1, VAR_VAL_SIG_SKEW_MIN) } 382 val-sig-skew-max{COLON} { YDVAR(1, VAR_VAL_SIG_SKEW_MAX) } 383 val-bogus-ttl{COLON} { YDVAR(1, VAR_BOGUS_TTL) } 384 val-clean-additional{COLON} { YDVAR(1, VAR_VAL_CLEAN_ADDITIONAL) } 385 val-permissive-mode{COLON} { YDVAR(1, VAR_VAL_PERMISSIVE_MODE) } 386 aggressive-nsec{COLON} { YDVAR(1, VAR_AGGRESSIVE_NSEC) } 387 ignore-cd-flag{COLON} { YDVAR(1, VAR_IGNORE_CD_FLAG) } 388 serve-expired{COLON} { YDVAR(1, VAR_SERVE_EXPIRED) } 389 serve-expired-ttl{COLON} { YDVAR(1, VAR_SERVE_EXPIRED_TTL) } 390 serve-expired-ttl-reset{COLON} { YDVAR(1, VAR_SERVE_EXPIRED_TTL_RESET) } 391 serve-expired-reply-ttl{COLON} { YDVAR(1, VAR_SERVE_EXPIRED_REPLY_TTL) } 392 serve-expired-client-timeout{COLON} { YDVAR(1, VAR_SERVE_EXPIRED_CLIENT_TIMEOUT) } 393 fake-dsa{COLON} { YDVAR(1, VAR_FAKE_DSA) } 394 fake-sha1{COLON} { YDVAR(1, VAR_FAKE_SHA1) } 395 val-log-level{COLON} { YDVAR(1, VAR_VAL_LOG_LEVEL) } 396 key-cache-size{COLON} { YDVAR(1, VAR_KEY_CACHE_SIZE) } 397 key-cache-slabs{COLON} { YDVAR(1, VAR_KEY_CACHE_SLABS) } 398 neg-cache-size{COLON} { YDVAR(1, VAR_NEG_CACHE_SIZE) } 399 val-nsec3-keysize-iterations{COLON} { 400 YDVAR(1, VAR_VAL_NSEC3_KEYSIZE_ITERATIONS) } 401 add-holddown{COLON} { YDVAR(1, VAR_ADD_HOLDDOWN) } 402 del-holddown{COLON} { YDVAR(1, VAR_DEL_HOLDDOWN) } 403 keep-missing{COLON} { YDVAR(1, VAR_KEEP_MISSING) } 404 permit-small-holddown{COLON} { YDVAR(1, VAR_PERMIT_SMALL_HOLDDOWN) } 405 use-syslog{COLON} { YDVAR(1, VAR_USE_SYSLOG) } 406 log-identity{COLON} { YDVAR(1, VAR_LOG_IDENTITY) } 407 log-time-ascii{COLON} { YDVAR(1, VAR_LOG_TIME_ASCII) } 408 log-queries{COLON} { YDVAR(1, VAR_LOG_QUERIES) } 409 log-replies{COLON} { YDVAR(1, VAR_LOG_REPLIES) } 410 log-tag-queryreply{COLON} { YDVAR(1, VAR_LOG_TAG_QUERYREPLY) } 411 log-local-actions{COLON} { YDVAR(1, VAR_LOG_LOCAL_ACTIONS) } 412 log-servfail{COLON} { YDVAR(1, VAR_LOG_SERVFAIL) } 413 local-zone{COLON} { YDVAR(2, VAR_LOCAL_ZONE) } 414 local-data{COLON} { YDVAR(1, VAR_LOCAL_DATA) } 415 local-data-ptr{COLON} { YDVAR(1, VAR_LOCAL_DATA_PTR) } 416 unblock-lan-zones{COLON} { YDVAR(1, VAR_UNBLOCK_LAN_ZONES) } 417 insecure-lan-zones{COLON} { YDVAR(1, VAR_INSECURE_LAN_ZONES) } 418 statistics-interval{COLON} { YDVAR(1, VAR_STATISTICS_INTERVAL) } 419 statistics-cumulative{COLON} { YDVAR(1, VAR_STATISTICS_CUMULATIVE) } 420 extended-statistics{COLON} { YDVAR(1, VAR_EXTENDED_STATISTICS) } 421 shm-enable{COLON} { YDVAR(1, VAR_SHM_ENABLE) } 422 shm-key{COLON} { YDVAR(1, VAR_SHM_KEY) } 423 remote-control{COLON} { YDVAR(0, VAR_REMOTE_CONTROL) } 424 control-enable{COLON} { YDVAR(1, VAR_CONTROL_ENABLE) } 425 control-interface{COLON} { YDVAR(1, VAR_CONTROL_INTERFACE) } 426 control-port{COLON} { YDVAR(1, VAR_CONTROL_PORT) } 427 control-use-cert{COLON} { YDVAR(1, VAR_CONTROL_USE_CERT) } 428 server-key-file{COLON} { YDVAR(1, VAR_SERVER_KEY_FILE) } 429 server-cert-file{COLON} { YDVAR(1, VAR_SERVER_CERT_FILE) } 430 control-key-file{COLON} { YDVAR(1, VAR_CONTROL_KEY_FILE) } 431 control-cert-file{COLON} { YDVAR(1, VAR_CONTROL_CERT_FILE) } 432 python-script{COLON} { YDVAR(1, VAR_PYTHON_SCRIPT) } 433 python{COLON} { YDVAR(0, VAR_PYTHON) } 434 dynlib-file{COLON} { YDVAR(1, VAR_DYNLIB_FILE) } 435 dynlib{COLON} { YDVAR(0, VAR_DYNLIB) } 436 domain-insecure{COLON} { YDVAR(1, VAR_DOMAIN_INSECURE) } 437 minimal-responses{COLON} { YDVAR(1, VAR_MINIMAL_RESPONSES) } 438 rrset-roundrobin{COLON} { YDVAR(1, VAR_RRSET_ROUNDROBIN) } 439 unknown-server-time-limit{COLON} { YDVAR(1, VAR_UNKNOWN_SERVER_TIME_LIMIT) } 440 max-udp-size{COLON} { YDVAR(1, VAR_MAX_UDP_SIZE) } 441 dns64-prefix{COLON} { YDVAR(1, VAR_DNS64_PREFIX) } 442 dns64-synthall{COLON} { YDVAR(1, VAR_DNS64_SYNTHALL) } 443 dns64-ignore-aaaa{COLON} { YDVAR(1, VAR_DNS64_IGNORE_AAAA) } 444 define-tag{COLON} { YDVAR(1, VAR_DEFINE_TAG) } 445 local-zone-tag{COLON} { YDVAR(2, VAR_LOCAL_ZONE_TAG) } 446 access-control-tag{COLON} { YDVAR(2, VAR_ACCESS_CONTROL_TAG) } 447 access-control-tag-action{COLON} { YDVAR(3, VAR_ACCESS_CONTROL_TAG_ACTION) } 448 access-control-tag-data{COLON} { YDVAR(3, VAR_ACCESS_CONTROL_TAG_DATA) } 449 access-control-view{COLON} { YDVAR(2, VAR_ACCESS_CONTROL_VIEW) } 450 local-zone-override{COLON} { YDVAR(3, VAR_LOCAL_ZONE_OVERRIDE) } 451 dnstap{COLON} { YDVAR(0, VAR_DNSTAP) } 452 dnstap-enable{COLON} { YDVAR(1, VAR_DNSTAP_ENABLE) } 453 dnstap-bidirectional{COLON} { YDVAR(1, VAR_DNSTAP_BIDIRECTIONAL) } 454 dnstap-socket-path{COLON} { YDVAR(1, VAR_DNSTAP_SOCKET_PATH) } 455 dnstap-ip{COLON} { YDVAR(1, VAR_DNSTAP_IP) } 456 dnstap-tls{COLON} { YDVAR(1, VAR_DNSTAP_TLS) } 457 dnstap-tls-server-name{COLON} { YDVAR(1, VAR_DNSTAP_TLS_SERVER_NAME) } 458 dnstap-tls-cert-bundle{COLON} { YDVAR(1, VAR_DNSTAP_TLS_CERT_BUNDLE) } 459 dnstap-tls-client-key-file{COLON} { 460 YDVAR(1, VAR_DNSTAP_TLS_CLIENT_KEY_FILE) } 461 dnstap-tls-client-cert-file{COLON} { 462 YDVAR(1, VAR_DNSTAP_TLS_CLIENT_CERT_FILE) } 463 dnstap-send-identity{COLON} { YDVAR(1, VAR_DNSTAP_SEND_IDENTITY) } 464 dnstap-send-version{COLON} { YDVAR(1, VAR_DNSTAP_SEND_VERSION) } 465 dnstap-identity{COLON} { YDVAR(1, VAR_DNSTAP_IDENTITY) } 466 dnstap-version{COLON} { YDVAR(1, VAR_DNSTAP_VERSION) } 467 dnstap-log-resolver-query-messages{COLON} { 468 YDVAR(1, VAR_DNSTAP_LOG_RESOLVER_QUERY_MESSAGES) } 469 dnstap-log-resolver-response-messages{COLON} { 470 YDVAR(1, VAR_DNSTAP_LOG_RESOLVER_RESPONSE_MESSAGES) } 471 dnstap-log-client-query-messages{COLON} { 472 YDVAR(1, VAR_DNSTAP_LOG_CLIENT_QUERY_MESSAGES) } 473 dnstap-log-client-response-messages{COLON} { 474 YDVAR(1, VAR_DNSTAP_LOG_CLIENT_RESPONSE_MESSAGES) } 475 dnstap-log-forwarder-query-messages{COLON} { 476 YDVAR(1, VAR_DNSTAP_LOG_FORWARDER_QUERY_MESSAGES) } 477 dnstap-log-forwarder-response-messages{COLON} { 478 YDVAR(1, VAR_DNSTAP_LOG_FORWARDER_RESPONSE_MESSAGES) } 479 disable-dnssec-lame-check{COLON} { YDVAR(1, VAR_DISABLE_DNSSEC_LAME_CHECK) } 480 ip-ratelimit{COLON} { YDVAR(1, VAR_IP_RATELIMIT) } 481 ratelimit{COLON} { YDVAR(1, VAR_RATELIMIT) } 482 ip-ratelimit-slabs{COLON} { YDVAR(1, VAR_IP_RATELIMIT_SLABS) } 483 ratelimit-slabs{COLON} { YDVAR(1, VAR_RATELIMIT_SLABS) } 484 ip-ratelimit-size{COLON} { YDVAR(1, VAR_IP_RATELIMIT_SIZE) } 485 ratelimit-size{COLON} { YDVAR(1, VAR_RATELIMIT_SIZE) } 486 ratelimit-for-domain{COLON} { YDVAR(2, VAR_RATELIMIT_FOR_DOMAIN) } 487 ratelimit-below-domain{COLON} { YDVAR(2, VAR_RATELIMIT_BELOW_DOMAIN) } 488 ip-ratelimit-factor{COLON} { YDVAR(1, VAR_IP_RATELIMIT_FACTOR) } 489 ratelimit-factor{COLON} { YDVAR(1, VAR_RATELIMIT_FACTOR) } 490 low-rtt{COLON} { YDVAR(1, VAR_LOW_RTT) } 491 fast-server-num{COLON} { YDVAR(1, VAR_FAST_SERVER_NUM) } 492 low-rtt-pct{COLON} { YDVAR(1, VAR_FAST_SERVER_PERMIL) } 493 low-rtt-permil{COLON} { YDVAR(1, VAR_FAST_SERVER_PERMIL) } 494 fast-server-permil{COLON} { YDVAR(1, VAR_FAST_SERVER_PERMIL) } 495 response-ip-tag{COLON} { YDVAR(2, VAR_RESPONSE_IP_TAG) } 496 response-ip{COLON} { YDVAR(2, VAR_RESPONSE_IP) } 497 response-ip-data{COLON} { YDVAR(2, VAR_RESPONSE_IP_DATA) } 498 dnscrypt{COLON} { YDVAR(0, VAR_DNSCRYPT) } 499 dnscrypt-enable{COLON} { YDVAR(1, VAR_DNSCRYPT_ENABLE) } 500 dnscrypt-port{COLON} { YDVAR(1, VAR_DNSCRYPT_PORT) } 501 dnscrypt-provider{COLON} { YDVAR(1, VAR_DNSCRYPT_PROVIDER) } 502 dnscrypt-secret-key{COLON} { YDVAR(1, VAR_DNSCRYPT_SECRET_KEY) } 503 dnscrypt-provider-cert{COLON} { YDVAR(1, VAR_DNSCRYPT_PROVIDER_CERT) } 504 dnscrypt-provider-cert-rotated{COLON} { YDVAR(1, VAR_DNSCRYPT_PROVIDER_CERT_ROTATED) } 505 dnscrypt-shared-secret-cache-size{COLON} { 506 YDVAR(1, VAR_DNSCRYPT_SHARED_SECRET_CACHE_SIZE) } 507 dnscrypt-shared-secret-cache-slabs{COLON} { 508 YDVAR(1, VAR_DNSCRYPT_SHARED_SECRET_CACHE_SLABS) } 509 dnscrypt-nonce-cache-size{COLON} { YDVAR(1, VAR_DNSCRYPT_NONCE_CACHE_SIZE) } 510 dnscrypt-nonce-cache-slabs{COLON} { YDVAR(1, VAR_DNSCRYPT_NONCE_CACHE_SLABS) } 511 ipsecmod-enabled{COLON} { YDVAR(1, VAR_IPSECMOD_ENABLED) } 512 ipsecmod-ignore-bogus{COLON} { YDVAR(1, VAR_IPSECMOD_IGNORE_BOGUS) } 513 ipsecmod-hook{COLON} { YDVAR(1, VAR_IPSECMOD_HOOK) } 514 ipsecmod-max-ttl{COLON} { YDVAR(1, VAR_IPSECMOD_MAX_TTL) } 515 ipsecmod-whitelist{COLON} { YDVAR(1, VAR_IPSECMOD_WHITELIST) } 516 ipsecmod-allow{COLON} { YDVAR(1, VAR_IPSECMOD_WHITELIST) } 517 ipsecmod-strict{COLON} { YDVAR(1, VAR_IPSECMOD_STRICT) } 518 cachedb{COLON} { YDVAR(0, VAR_CACHEDB) } 519 backend{COLON} { YDVAR(1, VAR_CACHEDB_BACKEND) } 520 secret-seed{COLON} { YDVAR(1, VAR_CACHEDB_SECRETSEED) } 521 redis-server-host{COLON} { YDVAR(1, VAR_CACHEDB_REDISHOST) } 522 redis-server-port{COLON} { YDVAR(1, VAR_CACHEDB_REDISPORT) } 523 redis-timeout{COLON} { YDVAR(1, VAR_CACHEDB_REDISTIMEOUT) } 524 redis-expire-records{COLON} { YDVAR(1, VAR_CACHEDB_REDISEXPIRERECORDS) } 525 ipset{COLON} { YDVAR(0, VAR_IPSET) } 526 name-v4{COLON} { YDVAR(1, VAR_IPSET_NAME_V4) } 527 name-v6{COLON} { YDVAR(1, VAR_IPSET_NAME_V6) } 528 udp-upstream-without-downstream{COLON} { YDVAR(1, VAR_UDP_UPSTREAM_WITHOUT_DOWNSTREAM) } 529 tcp-connection-limit{COLON} { YDVAR(2, VAR_TCP_CONNECTION_LIMIT) } 530 edns-client-tag{COLON} { YDVAR(2, VAR_EDNS_CLIENT_TAG) } 531 edns-client-tag-opcode{COLON} { YDVAR(1, VAR_EDNS_CLIENT_TAG_OPCODE) } 532 <INITIAL,val>{NEWLINE} { LEXOUT(("NL\n")); cfg_parser->line++; } 533 534 /* Quoted strings. Strip leading and ending quotes */ 535 <val>\" { BEGIN(quotedstring); LEXOUT(("QS ")); } 536 <quotedstring><<EOF>> { 537 ub_c_error("EOF inside quoted string"); 538 if(--num_args == 0) { BEGIN(INITIAL); } 539 else { BEGIN(val); } 540 } 541 <quotedstring>{DQANY}* { LEXOUT(("STR(%s) ", ub_c_text)); yymore(); } 542 <quotedstring>{NEWLINE} { ub_c_error("newline inside quoted string, no end \""); 543 cfg_parser->line++; BEGIN(INITIAL); } 544 <quotedstring>\" { 545 LEXOUT(("QE ")); 546 if(--num_args == 0) { BEGIN(INITIAL); } 547 else { BEGIN(val); } 548 ub_c_text[ub_c_leng - 1] = '\0'; 549 ub_c_lval.str = strdup(ub_c_text); 550 if(!ub_c_lval.str) 551 ub_c_error("out of memory"); 552 return STRING_ARG; 553 } 554 555 /* Single Quoted strings. Strip leading and ending quotes */ 556 <val>\' { BEGIN(singlequotedstr); LEXOUT(("SQS ")); } 557 <singlequotedstr><<EOF>> { 558 ub_c_error("EOF inside quoted string"); 559 if(--num_args == 0) { BEGIN(INITIAL); } 560 else { BEGIN(val); } 561 } 562 <singlequotedstr>{SQANY}* { LEXOUT(("STR(%s) ", ub_c_text)); yymore(); } 563 <singlequotedstr>{NEWLINE} { ub_c_error("newline inside quoted string, no end '"); 564 cfg_parser->line++; BEGIN(INITIAL); } 565 <singlequotedstr>\' { 566 LEXOUT(("SQE ")); 567 if(--num_args == 0) { BEGIN(INITIAL); } 568 else { BEGIN(val); } 569 ub_c_text[ub_c_leng - 1] = '\0'; 570 ub_c_lval.str = strdup(ub_c_text); 571 if(!ub_c_lval.str) 572 ub_c_error("out of memory"); 573 return STRING_ARG; 574 } 575 576 /* include: directive */ 577 <INITIAL,val>include{COLON} { 578 LEXOUT(("v(%s) ", ub_c_text)); inc_prev = YYSTATE; BEGIN(include); } 579 <include><<EOF>> { 580 ub_c_error("EOF inside include directive"); 581 BEGIN(inc_prev); 582 } 583 <include>{SPACE}* { LEXOUT(("ISP ")); /* ignore */ } 584 <include>{NEWLINE} { LEXOUT(("NL\n")); cfg_parser->line++;} 585 <include>\" { LEXOUT(("IQS ")); BEGIN(include_quoted); } 586 <include>{UNQUOTEDLETTER}* { 587 LEXOUT(("Iunquotedstr(%s) ", ub_c_text)); 588 config_start_include_glob(ub_c_text, 0); 589 BEGIN(inc_prev); 590 } 591 <include_quoted><<EOF>> { 592 ub_c_error("EOF inside quoted string"); 593 BEGIN(inc_prev); 594 } 595 <include_quoted>{DQANY}* { LEXOUT(("ISTR(%s) ", ub_c_text)); yymore(); } 596 <include_quoted>{NEWLINE} { ub_c_error("newline before \" in include name"); 597 cfg_parser->line++; BEGIN(inc_prev); } 598 <include_quoted>\" { 599 LEXOUT(("IQE ")); 600 ub_c_text[ub_c_leng - 1] = '\0'; 601 config_start_include_glob(ub_c_text,0); 602 BEGIN(inc_prev); 603 } 604 <INITIAL,val><<EOF>> { 605 LEXOUT(("LEXEOF ")); 606 yy_set_bol(1); /* Set beginning of line, so "^" rules match. */ 607 if (!config_include_stack) { 608 yyterminate(); 609 } else { 610 fclose(yyin); 611 int prev_toplevel = inc_toplevel; 612 fclose(ub_c_in); 613 config_end_include(); 614 if(prev_toplevel) return (VAR_FORCE_TOPLEVEL); 615 } 616 } 617 618 /* include-toplevel: directive */ 619 <INITIAL,val>include-toplevel{COLON} { 620 LEXOUT(("v(%s) ", ub_c_text)); inc_prev = YYSTATE; BEGIN(include_toplevel); 621 } 622 <include_toplevel><<EOF>> { 623 ub_c_error("EOF inside include_toplevel directive"); 624 BEGIN(inc_prev); 625 } 626 <include_toplevel>{SPACE}* { LEXOUT(("ITSP ")); /* ignore */ } 627 <include_toplevel>{NEWLINE} { LEXOUT(("NL\n")); cfg_parser->line++; } 628 <include_toplevel>\" { LEXOUT(("ITQS ")); BEGIN(include_toplevel_quoted); } 629 <include_toplevel>{UNQUOTEDLETTER}* { 630 LEXOUT(("ITunquotedstr(%s) ", ub_c_text)); 631 config_start_include_glob(ub_c_text, 1); 632 BEGIN(inc_prev); 633 return (VAR_FORCE_TOPLEVEL); 634 } 635 <include_toplevel_quoted><<EOF>> { 636 ub_c_error("EOF inside quoted string"); 637 BEGIN(inc_prev); 638 } 639 <include_toplevel_quoted>{DQANY}* { LEXOUT(("ITSTR(%s) ", ub_c_text)); yymore(); } 640 <include_toplevel_quoted>{NEWLINE} { 641 ub_c_error("newline before \" in include name"); 642 cfg_parser->line++; BEGIN(inc_prev); 643 } 644 <include_toplevel_quoted>\" { 645 LEXOUT(("ITQE ")); 646 ub_c_text[yyleng - 1] = '\0'; 647 config_start_include_glob(ub_c_text, 1); 648 BEGIN(inc_prev); 649 return (VAR_FORCE_TOPLEVEL); 650 } 651 652 <val>{UNQUOTEDLETTER}* { LEXOUT(("unquotedstr(%s) ", ub_c_text)); 653 if(--num_args == 0) { BEGIN(INITIAL); } 654 ub_c_lval.str = strdup(ub_c_text); return STRING_ARG; } 655 656 {UNQUOTEDLETTER_NOCOLON}* { 657 ub_c_error_msg("unknown keyword '%s'", ub_c_text); 658 } 659 660 <*>. { 661 ub_c_error_msg("stray '%s'", ub_c_text); 662 } 663 664 %% 665