1 /*************************************************************************** 2 * Copyright (c) 2024 Microsoft Corporation 3 * 4 * This program and the accompanying materials are made available under the 5 * terms of the MIT License which is available at 6 * https://opensource.org/licenses/MIT. 7 * 8 * SPDX-License-Identifier: MIT 9 **************************************************************************/ 10 11 12 /**************************************************************************/ 13 /**************************************************************************/ 14 /** */ 15 /** NetX Component */ 16 /** */ 17 /** Multicast Domain Name System (mDNS) */ 18 /** */ 19 /**************************************************************************/ 20 /**************************************************************************/ 21 22 /**************************************************************************/ 23 /* */ 24 /* APPLICATION INTERFACE DEFINITION RELEASE */ 25 /* */ 26 /* nxd_mdns.h PORTABLE C */ 27 /* 6.3.0 */ 28 /* AUTHOR */ 29 /* */ 30 /* Yuxin Zhou, Microsoft Corporation */ 31 /* */ 32 /* DESCRIPTION */ 33 /* */ 34 /* This file defines the NetX Multicast Domain Name System (mDNS) */ 35 /* component, including all data types and external references. */ 36 /* It is assumed that nx_api.h and nx_port.h have already been */ 37 /* included. */ 38 /* */ 39 /* RELEASE HISTORY */ 40 /* */ 41 /* DATE NAME DESCRIPTION */ 42 /* */ 43 /* 05-19-2020 Yuxin Zhou Initial Version 6.0 */ 44 /* 09-30-2020 Yuxin Zhou Modified comment(s), improved */ 45 /* buffer length verification, */ 46 /* resulting in version 6.1 */ 47 /* 12-31-2020 Yuxin Zhou Modified comment(s), */ 48 /* prevented infinite loop in */ 49 /* name compression, */ 50 /* resulting in version 6.1.3 */ 51 /* 04-25-2022 Yuxin Zhou Modified comment(s), */ 52 /* fixed the issue of timer, */ 53 /* resulting in version 6.1.11 */ 54 /* 10-31-2023 Bo Chen Modified comment(s), and */ 55 /* corrected the symbols check,*/ 56 /* resulting in version 6.3.0 */ 57 /* */ 58 /**************************************************************************/ 59 60 #ifndef NXD_MDNS_H 61 #define NXD_MDNS_H 62 63 /* Determine if a C++ compiler is being used. If so, ensure that standard 64 C is used to process the API information. */ 65 66 67 68 #ifdef __cplusplus 69 70 /* Yes, C++ compiler is present. Use standard C. */ 71 extern "C" { 72 73 #endif 74 75 #include "nx_api.h" 76 #include "nx_udp.h" 77 #include "nx_ip.h" 78 #ifdef FEATURE_NX_IPV6 79 #include "nx_ipv6.h" 80 #endif /* FEATURE_NX_IPV6 */ 81 82 83 /* Define the Multicast DNS ID. */ 84 #define NX_MDNS_ID 0x4d444e53UL 85 86 /* Define macros that get the data on unaligned address. */ 87 #define NX_MDNS_GET_USHORT_DATA(data) (USHORT)((*(data) << 8) | (*(data + 1))) 88 #define NX_MDNS_GET_ULONG_DATA(data) (ULONG)((*(data) << 24) | (*(data + 1) << 16) | (*(data + 2) << 8) | (*(data + 3))) 89 90 /* Disable the mDNS Server functionality. By default mDNS server 91 function is enabled. To remove the mDNS server function from 92 the mDNS library, uncomment the following line. */ 93 /* 94 #define NX_MDNS_DISABLE_SERVER 95 */ 96 97 /* Disable the mDNS Client functionality. By default mDNS client 98 function is enabled. To remove the mDNS client function from 99 the mDNS library, uncomment the following line. */ 100 /* 101 #define NX_MDNS_DISABLE_CLIENT 102 */ 103 104 /* Enable the feature to check the address and port of mDNS message. 105 By default is enabled. To remove it from the mDNS library, 106 comment the following line. */ 107 #define NX_MDNS_ENABLE_ADDRESS_CHECK 108 109 /* Enable the Passive Observation Of Failures feature for Client. 110 By default is enabled. To remove it from the mDNS library, 111 comment the following line. 112 Note: This will have no effect if NX_MDNS_DISABLE_CLIENT is defined. */ 113 #define NX_MDNS_ENABLE_CLIENT_POOF 114 115 /* Enable the feature for Server to generate the Negative Responses. 116 By default is enabled. To remove it from the mDNS library, 117 comment the following line. 118 Note: This will have no effect if NX_MDNS_DISABLE_SERVER is defined. */ 119 #define NX_MDNS_ENABLE_SERVER_NEGATIVE_RESPONSES 120 121 122 /* Enable mDNS IPv6 feature, send/process mDNS message over IPv6 address. 123 By default mDNS IPv6 function is disabled. To enable this feature, 124 uncomment the following line. */ 125 /* 126 #define NX_MDNS_ENABLE_IPV6 127 */ 128 129 #ifdef NX_MDNS_ENABLE_IPV6 130 131 #ifndef FEATURE_NX_IPV6 132 #error "mDNS IPv6 is not supported if IPv6 is not enabled." 133 #endif /* FEATURE_NX_IPV6 */ 134 135 #ifndef NX_ENABLE_IPV6_MULTICAST 136 #error "mDNS IPv6 is not supported if IPv6 multicast is not enabled." 137 #endif /* NX_ENABLE_IPV6_MULTICAST */ 138 139 #ifndef NX_MDNS_DISABLE_SERVER 140 #ifndef NX_ENABLE_IPV6_ADDRESS_CHANGE_NOTIFY 141 #error "mDNS IPv6 is not supported if IPv6 address change notify is not enabled." 142 #endif /* NX_ENABLE_IPV6_ADDRESS_CHANGE_NOTIFY */ 143 #endif /* NX_MDNS_DISABLE_SERVER */ 144 145 #endif /* NX_MDNS_ENABLE_IPV6 */ 146 147 148 /* Define the IPV6 address count of the host name. */ 149 #ifndef NX_MDNS_IPV6_ADDRESS_COUNT 150 #define NX_MDNS_IPV6_ADDRESS_COUNT 2 151 #endif /* NX_MDNS_IPV6_ADDRESS_COUNT */ 152 153 154 /* Define message and name limits. */ 155 #define NX_MDNS_TYPE_MAX 21 /* Maximum Type size, <sn>._tcp, <sn> may be up to 15 bytes, 156 plus the underscore and length byte. Including the "_udp" or "_tcp". */ 157 #define NX_MDNS_LABEL_MAX 63 /* Maximum Label (between two dots) size */ 158 #define NX_MDNS_NAME_MAX 255 /* Maximum Name size */ 159 #define NX_MDNS_IP_LOOKUP_SIZE 75 /* IPv6 needs 66 characters for the address plus 8 for the ip6.arpa plus null */ 160 /* IPv4 needs 12 characters max for the address plus 12 for the IN-ADDR.ARPA plus null */ 161 162 163 /* Define the mDNS's host name cache size. Keep four-byte alignment. */ 164 /* Note: The real host name size plus conflict size (4) 165 must not exceed NX_MDNS_LABEL_MAX and NX_MDNS_HOST_NAME_MAX. 166 such as: 167 the real host name: "NETX-MDNS-HOST" 168 the conflict name: " (2)" 169 the final name: "NETX-MDNS-HOST (2)". */ 170 #ifndef NX_MDNS_HOST_NAME_MAX 171 #define NX_MDNS_HOST_NAME_MAX 64 172 #endif /* NX_MDNS_HOST_NAME_MAX */ 173 174 175 /* Define the mDNS's service name cache size. Keep four-byte alignment. */ 176 /* Note: The real service name size plus conflict size (4) 177 must not exceed NX_MDNS_LABEL_MAX and NX_MDNS_SERVICE_NAME_MAX. 178 such as: 179 the real service name: "NETX-MDNS-SERVICE" 180 the conflict name: " (2)" 181 the final service name: "NETX-MDNS-SERVICE (2)". */ 182 #ifndef NX_MDNS_SERVICE_NAME_MAX 183 #define NX_MDNS_SERVICE_NAME_MAX 64 184 #endif /* NX_MDNS_SERVICE_NAME_MAX */ 185 186 187 /* Define the mDNS's domain name max size. */ 188 #ifndef NX_MDNS_DOMAIN_NAME_MAX 189 #define NX_MDNS_DOMAIN_NAME_MAX 16 190 #endif /* NX_MDNS_DOMAIN_NAME_MAX */ 191 192 /* NX_MDNS_DOMAIN_NAME_MAX must be at least 5 bytes to hold "local". */ 193 #if (NX_MDNS_DOMAIN_NAME_MAX < 5) 194 #error "NX_MDNS_DOMAIN_NAME_MAX must be at least 5 bytes!" 195 #endif /* (NX_MDNS_DOMAIN_NAME_MAX < 5) */ 196 197 /* (NX_MDNS_HOST_NAME_MAX + "."(1) + NX_MDNS_DOMAIN_NAME_MAX) must be no more than NX_MDNS_NAME_MAX. */ 198 #if ((NX_MDNS_HOST_NAME_MAX + 1 + NX_MDNS_DOMAIN_NAME_MAX) > NX_MDNS_NAME_MAX) 199 #error "(NX_MDNS_HOST_NAME_MAX + 1 + NX_MDNS_DOMAIN_NAME_MAX) must be no more than NX_MDNS_NAME_MAX!" 200 #endif 201 202 /* Define the conflict count of service name or host name. */ 203 /* Note: the confilict count should be less than 8, since we just append " (x)" 204 between " (2)" and " (9)" during the conflict resolution process. */ 205 #ifndef NX_MDNS_CONFLICT_COUNT 206 #define NX_MDNS_CONFLICT_COUNT 8 207 #endif/* NX_MDNS_CONFLICT_COUNT */ 208 209 210 /* Define the DNS-SD buffer size for storing "_services._dns-sd._udp.local" */ 211 /* Note: the domain can be updated, so the max size should be NX_MDNS_DOMAIN_NAME_MAX + 23. 212 "_services._dns-sd._udp." (23) + NX_MDNS_DOMAIN_NAME_MAX. */ 213 #define NX_MDNS_DNS_SD_MAX (NX_MDNS_DOMAIN_NAME_MAX + 23) 214 215 216 /* Define mDNS Multicast Address. */ 217 #define NX_MDNS_IPV4_MULTICAST_ADDRESS (IP_ADDRESS(224,0,0,251)) 218 219 220 /* Define mDNS port. */ 221 #define NX_MDNS_UDP_PORT 5353 222 223 224 /* Define UDP socket create options. */ 225 #ifndef NX_MDNS_UDP_TYPE_OF_SERVICE 226 #define NX_MDNS_UDP_TYPE_OF_SERVICE NX_IP_NORMAL 227 #endif /* NX_MDNS_UDP_TYPE_OF_SERVICE */ 228 229 #ifndef NX_MDNS_UDP_FRAGMENT_OPTION 230 #define NX_MDNS_UDP_FRAGMENT_OPTION NX_DONT_FRAGMENT 231 #endif /* NX_MDNS_UDP_FRAGMENT_OPTION */ 232 233 #ifndef NX_MDNS_UDP_TIME_TO_LIVE 234 #define NX_MDNS_UDP_TIME_TO_LIVE 0xFF 235 #endif /* NX_MDNS_UDP_TIME_TO_LIVE */ 236 237 #ifndef NX_MDNS_UDP_QUEUE_DEPTH 238 #define NX_MDNS_UDP_QUEUE_DEPTH 4 239 #endif /* NX_MDNS_UDP_QUEUE_DEPTH */ 240 241 242 /* Define the resource record TTL. In second. */ 243 /* The recommended TTL value for Multicast DNS resource records with a host name as the resource record's name 244 (e.g., A, AAAA, HINFO) or a host name contaned within the resource record's rdata (e.g., SRV, reverse mapping PTR record) 245 should be 120 seconds. The recommended TTL value for other Multicast DNS resource records is 75 minutes. 246 RFC6762, Section10, Page33. */ 247 #ifndef NX_MDNS_RR_TTL_HOST 248 #define NX_MDNS_RR_TTL_HOST 120 249 #endif /* NX_MDNS_RR_TTL_HOST */ 250 251 #ifndef NX_MDNS_RR_TTL_OTHER 252 #define NX_MDNS_RR_TTL_OTHER 4500 /* 75 minutes. */ 253 #endif /* NX_MDNS_RR_TTL_OTHER */ 254 255 256 /* Define the mDNS's probing timer interval, default 250ms in spec. In tick. 257 should be: 250 * NX_IP_PERIODIC_RATE / 1000. */ 258 #ifndef NX_MDNS_PROBING_TIMER_COUNT 259 #define NX_MDNS_PROBING_TIMER_COUNT (250 * NX_IP_PERIODIC_RATE / 1000) 260 #endif /* NX_MDNS_PROBING_TIMER_COUNT */ 261 262 263 /* Define the mDNS's announcing timer interval, default 250ms in spec. In tick. 264 should be: 250 * NX_IP_PERIODIC_RATE / 1000. */ 265 #ifndef NX_MDNS_ANNOUNCING_TIMER_COUNT 266 #define NX_MDNS_ANNOUNCING_TIMER_COUNT (250 * NX_IP_PERIODIC_RATE / 1000) 267 #endif /* NX_MDNS_ANNOUNCING_TIMER_COUNT */ 268 269 270 /* Define the mDNS's goodbye timer interval, default 250ms in spec. In tick. 271 should be: 250 * NX_IP_PERIODIC_RATE / 1000. */ 272 #ifndef NX_MDNS_GOODBYE_TIMER_COUNT 273 #define NX_MDNS_GOODBYE_TIMER_COUNT (250 * NX_IP_PERIODIC_RATE / 1000) 274 #endif /* NX_MDNS_GOODBYE_TIMER_COUNT */ 275 276 277 /* Define the mDNS's min query timer interval between two queries, 1 second. In tick. */ 278 #ifndef NX_MDNS_QUERY_MIN_TIMER_COUNT 279 #define NX_MDNS_QUERY_MIN_TIMER_COUNT NX_IP_PERIODIC_RATE 280 #endif /* NX_MDNS_QUERY_MIN_TIMER_COUNT */ 281 282 283 /* Define the mDNS's max query timer interval between first two queries, 60 minutes. In tick. */ 284 #ifndef NX_MDNS_QUERY_MAX_TIMER_COUNT 285 #define NX_MDNS_QUERY_MAX_TIMER_COUNT (3600 * NX_IP_PERIODIC_RATE) 286 #endif /* NX_MDNS_QUERY_MAX_TIMER_COUNT */ 287 288 289 /* Define the mDNS's query delay timer interval, 20-120ms. In tick. */ 290 #ifndef NX_MDNS_QUERY_DELAY_MIN 291 #define NX_MDNS_QUERY_DELAY_MIN (20 * NX_IP_PERIODIC_RATE / 1000) 292 #endif /* NX_MDNS_QUERY_DELAY_MIN */ 293 294 #ifndef NX_MDNS_QUERY_DELAY_RANGE 295 #define NX_MDNS_QUERY_DELAY_RANGE (100 * NX_IP_PERIODIC_RATE / 1000) 296 #endif /* NX_MDNS_QUERY_DELAY_RANGE */ 297 298 299 /* Define the mDNS's response delay time interval for multicast query. */ 300 /* The time interval, in ticks, in responding to a query to ensure an interval of at least 1s 301 since the last time the record was multicast. The default value is NX_IP_PERIODIC_RATE ticks. */ 302 #ifndef NX_MDNS_RESPONSE_INTERVAL 303 #define NX_MDNS_RESPONSE_INTERVAL NX_IP_PERIODIC_RATE 304 #endif /* NX_MDNS_RESPONSE_INTERVAL */ 305 306 307 /* Define the mDNS's response delay time interval for probe message. */ 308 /* The time interval, in ticks, in responding to a probe queries to ensure an interval of 309 at least 250ms since the last time the record was multicast. The default value is (250 * NX_IP_PERIODIC_RATE / 1000) ticks. */ 310 #ifndef NX_MDNS_RESPONSE_PROBING_TIMER_COUNT 311 #define NX_MDNS_RESPONSE_PROBING_TIMER_COUNT (250 * NX_IP_PERIODIC_RATE / 1000) 312 #endif /* NX_MDNS_RESPONSE_PROBING_TIMER_COUNT */ 313 314 315 /* Define the mDNS's response delay time interval for unicast query, 10 ms. In tick. */ 316 #ifndef NX_MDNS_RESPONSE_UNIQUE_DELAY 317 #define NX_MDNS_RESPONSE_UNIQUE_DELAY (10 * NX_IP_PERIODIC_RATE / 1000) 318 #endif /* NX_MDNS_RESPONSE_UNIQUE_DELAY */ 319 320 321 /* Define the mDNS's response delay time interval for shared message, 20-120ms. In tick. */ 322 #ifndef NX_MDNS_RESPONSE_SHARED_DELAY_MIN 323 #define NX_MDNS_RESPONSE_SHARED_DELAY_MIN (20 * NX_IP_PERIODIC_RATE / 1000) 324 #endif /* NX_MDNS_RESPONSE_SHARED_DELAY_MIN */ 325 326 #ifndef NX_MDNS_RESPONSE_SHARED_DELAY_RANGE 327 #define NX_MDNS_RESPONSE_SHARED_DELAY_RANGE (100 * NX_IP_PERIODIC_RATE / 1000) 328 #endif /* NX_MDNS_RESPONSE_SHARED_DELAY_RANGE */ 329 330 331 /* Define the mDNS's response delay time interval for query with TC, 400-500 ms. In tick. */ 332 #ifndef NX_MDNS_RESPONSE_TC_DELAY_MIN 333 #define NX_MDNS_RESPONSE_TC_DELAY_MIN (400 * NX_IP_PERIODIC_RATE / 1000) 334 #endif /* NX_MDNS_RESPONSE_TC_DELAY_MIN */ 335 336 #ifndef NX_MDNS_RESPONSE_TC_DELAY_RANGE 337 #define NX_MDNS_RESPONSE_TC_DELAY_RANGE (100 * NX_IP_PERIODIC_RATE / 1000) 338 #endif /* NX_MDNS_RESPONSE_TC_DELAY_RANGE */ 339 340 341 /* Define the mDNS's random delay timer count, 120 ms. In tick. */ 342 /* This value allows a response to include messages that would be sent within 343 the next 120ms range. */ 344 #ifndef NX_MDNS_TIMER_COUNT_RANGE 345 #define NX_MDNS_TIMER_COUNT_RANGE (120 * NX_IP_PERIODIC_RATE / 1000) 346 #endif /* NX_MDNS_TIMER_COUNT_RANGE */ 347 348 349 /* Define the mDNS's probing retransmit count. The defaul value is 3. */ 350 #ifndef NX_MDNS_PROBING_RETRANSMIT_COUNT 351 #define NX_MDNS_PROBING_RETRANSMIT_COUNT 3 352 #endif /* NX_MDNS_PROBING_RETRANSMIT_COUNT */ 353 354 355 /* Define the mDNS's goodbye retransmit count. The defaul value is 1. */ 356 #ifndef NX_MDNS_GOODBYE_RETRANSMIT_COUNT 357 #define NX_MDNS_GOODBYE_RETRANSMIT_COUNT 1 358 #endif /* NX_MDNS_GOODBYE_RETRANSMIT_COUNT */ 359 360 361 /* Passive Observation Of Failures. 362 If a host sees queries, for which a record in its cache would be 363 expected to be given as an answer in a multicast response, but no 364 such answer is seen, then the host may take this as an indication 365 that the record may no longer be valid. 366 After seesing NX_MDNS_POOF_MIN_COUNT of these queries, and seeing 367 no multicast response containing the expected answer with in 368 NX_MDNS_POOF_TIMER_COUNT, delete the RR from the cache. 369 RFC6762, Section10.5, Page38. */ 370 371 /* Define the Passive Observation Of Failures min count. The defaul value is 2. */ 372 #ifndef NX_MDNS_POOF_MIN_COUNT 373 #define NX_MDNS_POOF_MIN_COUNT 2 374 #endif /* NX_MDNS_POOF_MIN_COUNT */ 375 376 /* Define the Passive Observation Of Failures timer count, 10 seconds in spec. In tick. */ 377 #ifndef NX_MDNS_POOF_TIMER_COUNT 378 #define NX_MDNS_POOF_TIMER_COUNT (10 * NX_IP_PERIODIC_RATE) 379 #endif /* NX_MDNS_POOF_TIMER_COUNT */ 380 381 382 /* Define the RR delete delay timer. */ 383 /* Queriers receiving a Multicast DNS response with a TTL of zero SHOULD 384 NOT immediately delete the record from the cache, but instead record 385 a TTL of 1 and then delete the record one second later. In tick. */ 386 #ifndef NX_MDNS_RR_DELETE_DELAY_TIMER_COUNT 387 #define NX_MDNS_RR_DELETE_DELAY_TIMER_COUNT NX_IP_PERIODIC_RATE 388 #endif /* NX_MDNS_RR_DELETE_DELAY_TIMER_COUNT */ 389 390 /* Define the maximum number of pointers allowed in name compression. */ 391 #ifndef NX_MDNS_MAX_COMPRESSION_POINTERS 392 #define NX_MDNS_MAX_COMPRESSION_POINTERS 16 393 #endif /* NX_MDNS_MAX_COMPRESSION_POINTERS */ 394 395 396 /* Define the default mDNS's announcing value. */ 397 #define NX_MDNS_ANNOUNCING_PERIOD NX_IP_PERIODIC_RATE 398 #define NX_MDNS_ANNOUNCING_COUNT 1 399 #define NX_MDNS_ANNOUNCING_FACTOR 1 400 #define NX_MDNS_ANNOUNCING_RETRANS_INTERVAL 0 401 #define NX_MDNS_ANNOUNCING_PERIOD_INTERVAL 0xFFFFFFFF 402 #define NX_MDNS_ANNOUNCING_MAX_TIME 3 403 #define NX_MDNS_ANNOUNCING_FOREVER 0xFF 404 405 406 /* Define the max ttl. In second. */ 407 #define NX_MDNS_RR_MAX_TTL 0xFFFFFFFF/NX_IP_PERIODIC_RATE 408 409 410 /* Define the RR update retransmit count. 411 The querier should plan to issure a query at 80%, 85%, 90%, 95% of the record lifetime. */ 412 #define NX_MDNS_RR_UPDATE_COUNT 4 413 414 415 /* Define the Address length. */ 416 #define NX_MDNS_IPV4_ADDRESS_LENGTH 4 417 #define NX_MDNS_IPV6_ADDRESS_LENGTH 16 418 419 420 /* Define mDNS event flags. */ 421 #define NX_MDNS_ALL_EVENTS ((ULONG) 0xFFFFFFFF) /* All event flags. */ 422 #define NX_MDNS_PKT_RX_EVENT ((ULONG) 0x00000001) /* Receive the mDNS packet. */ 423 #define NX_MDNS_QUERY_SEND_EVENT ((ULONG) 0x00000002) /* Send the mDNS Query packet. */ 424 #define NX_MDNS_RESPONSE_SEND_EVENT ((ULONG) 0x00000004) /* Send the mDNS Response packet. */ 425 #define NX_MDNS_PROBING_SEND_EVENT ((ULONG) 0x00000008) /* Send the mDNS Probing packet. */ 426 #define NX_MDNS_ANNOUNCING_SEND_EVENT ((ULONG) 0x00000010) /* Send the mDNS Announcing packet. */ 427 #define NX_MDNS_GOODBYE_SEND_EVENT ((ULONG) 0x00000020) /* Send the mDNS Goodbye packet. */ 428 #define NX_MDNS_TIMER_EVENT ((ULONG) 0x00000040) /* Process the mDNS timer event. */ 429 #define NX_MDNS_ADDRESS_CHANGE_EVENT ((ULONG) 0x00000080) /* Process the mDNS address change event. */ 430 #define NX_MDNS_RR_ELAPSED_TIMER_EVENT ((ULONG) 0x00000100) /* Process the mDNS rr elapsed tiemr event. */ 431 432 433 /* Define return code constants. */ 434 #define NX_MDNS_SUCCESS 0x00 /* mDNS Success. */ 435 #define NX_MDNS_ERROR 0xA1 /* mDNS internal error. */ 436 #define NX_MDNS_PARAM_ERROR 0xA2 /* mDNS parameters error. */ 437 #define NX_MDNS_CACHE_ERROR 0xA3 /* The Cache size is not enough. */ 438 #define NX_MDNS_UNSUPPORTED_TYPE 0xA4 /* The unsupported resource record type. */ 439 #define NX_MDNS_DATA_SIZE_ERROR 0xA5 /* The data size is too big. */ 440 #define NX_MDNS_AUTH_ERROR 0xA6 /* Attempting to parse too large a data. */ 441 #define NX_MDNS_PACKET_ERROR 0xA7 /* The packet can not add the resource record. */ 442 #define NX_MDNS_DEST_ADDRESS_ERROR 0xA9 /* The destination address error. */ 443 #define NX_MDNS_UDP_PORT_ERROR 0xB0 /* The udp port error. */ 444 #define NX_MDNS_NOT_LOCAL_LINK 0xB1 /* The message that not originate from the local link. */ 445 #define NX_MDNS_EXCEED_MAX_LABEL 0xB2 /* The data exceed the max laber size. */ 446 #define NX_MDNS_EXIST_UNIQUE_RR 0xB3 /* At least one Unqiue record in the cache. */ 447 #define NX_MDNS_EXIST_SHARED_RR 0xB4 /* At least one shared record in the cache. */ 448 #define NX_MDNS_EXIST_SAME_QUERY 0xB5 /* Exist the same query record in the cache. */ 449 #define NX_MDNS_EXIST_SAME_SERVICE 0xB6 /* Exist the same service. */ 450 #define NX_MDNS_NO_RR 0xB7 /* No response for one-shot query. */ 451 #define NX_MDNS_NO_KNOWN_ANSWER 0xB8 /* No known answer for query. */ 452 #define NX_MDNS_NAME_MISMATCH 0xB9 /* The name mismatch. */ 453 #define NX_MDNS_NOT_STARTED 0xC0 /* mDNS does not start. */ 454 #define NX_MDNS_HOST_NAME_ERROR 0xC1 /* mDNS host name error. */ 455 #define NX_MDNS_NO_MORE_ENTRIES 0xC2 /* No more entries be found. */ 456 #define NX_MDNS_SERVICE_TYPE_MISMATCH 0xC3 /* The service type mismatch */ 457 #define NX_MDNS_NOT_ENABLED 0xC4 /* mDNS does not enable. */ 458 #define NX_MDNS_ALREADY_ENABLED 0xC5 /* mDNS already enabled. */ 459 460 461 /* Define the local host/service register notify state. */ 462 #define NX_MDNS_LOCAL_HOST_REGISTERED_SUCCESS 1 /* mDNS Server: Local host registered success. */ 463 #define NX_MDNS_LOCAL_HOST_REGISTERED_FAILURE 2 /* mDNS Server: Local host registered failure. */ 464 #define NX_MDNS_LOCAL_SERVICE_REGISTERED_SUCCESS 3 /* mDNS Server: Local service registered success. */ 465 #define NX_MDNS_LOCAL_SERVICE_REGISTERED_FAILURE 4 /* mDNS Server: Local service registered failure. */ 466 467 /* Define the peer service change notify state. */ 468 #define NX_MDNS_PEER_SERVICE_RECEIVED 1 /* mDNS Client: Peer service received. */ 469 #define NX_MDNS_PEER_SERVICE_DELETED 2 /* mDNS Client: Peer service deleted. */ 470 #define NX_MDNS_PEER_SERVICE_UPDATED 3 /* mDNS Client: Peer service address updated. */ 471 472 /* Define the cache notify state. */ 473 #define NX_MDNS_CACHE_STATE_FULL 1 /* mDNS Cache is full, and cannot fill the RR. */ 474 #define NX_MDNS_CACHE_STATE_FRAGMENTED 2 /* mDNS Cache is fragmented, and cannot fill the RR. */ 475 476 /* Define cache type. */ 477 #define NX_MDNS_CACHE_TYPE_LOCAL 0 /* Local cache. */ 478 #define NX_MDNS_CACHE_TYPE_PEER 1 /* Peer cache. */ 479 480 481 /* Define offsets into the DNS message buffer. */ 482 #define NX_MDNS_ID_OFFSET 0 /* Offset to ID code in DNS buffer */ 483 #define NX_MDNS_FLAGS_OFFSET 2 /* Offset to flags in DNS buffer */ 484 #define NX_MDNS_QDCOUNT_OFFSET 4 /* Offset to Question Count in DNS buffer */ 485 #define NX_MDNS_ANCOUNT_OFFSET 6 /* Offset to Answer Count in DNS buffer */ 486 #define NX_MDNS_NSCOUNT_OFFSET 8 /* Offset to Authority Count in DNS buffer */ 487 #define NX_MDNS_ARCOUNT_OFFSET 10 /* Offset to Additional Info. Count in DNS buffer */ 488 #define NX_MDNS_QDSECT_OFFSET 12 /* Offset to Question Section in DNS buffer */ 489 490 491 /* Define constants for the flags word. */ 492 #define NX_MDNS_QUERY_MASK 0x0000 493 #define NX_MDNS_QUERY_FLAG 0x0000 494 #define NX_MDNS_RESPONSE_FLAG 0x8000 495 #define NX_MDNS_ERROR_MASK 0x000F 496 #define NX_MDNS_TOP_BIT_MASK 0x7FFF 497 498 #define NX_MDNS_OPCODE_QUERY (0 << 12) /* Shifted right 12 is still 0 */ 499 #define NX_MDNS_OPCODE_IQUERY (1 << 12) /* 1 shifted right by 12 */ 500 #define NX_MDNS_OPCODE_STATUS (2 << 12) /* 2 shifted right by 12 */ 501 502 #define NX_MDNS_AA_FLAG 0x0400 /* Authoritative Answer */ 503 #define NX_MDNS_TC_FLAG 0x0200 /* Truncated */ 504 #define NX_MDNS_RD_FLAG 0x0100 /* Recursive Query */ 505 #define NX_MDNS_RA_FLAG 0x0080 /* Recursion Available */ 506 #define NX_MDNS_FA_FLAG 0x0010 /* Force Authentication */ 507 508 /* Define name compression masks. */ 509 #define NX_MDNS_COMPRESS_MASK 0xc0 510 #define NX_MDNS_COMPRESS_VALUE 0xc0 511 #define NX_MDNS_POINTER_MASK 0xc000 512 513 /* Define resource record types. */ 514 #define NX_MDNS_RR_TYPE_A 1 /* Host address */ 515 #define NX_MDNS_RR_TYPE_NS 2 /* Authoritative name server */ 516 #define NX_MDNS_RR_TYPE_MD 3 /* Mail destination (Obsolete - use MX) */ 517 #define NX_MDNS_RR_TYPE_MF 4 /* Mail forwarder (Obsolete - use MX) */ 518 #define NX_MDNS_RR_TYPE_CNAME 5 /* Canonical name for an alias */ 519 #define NX_MDNS_RR_TYPE_SOA 6 /* Marks the start of a zone of authority */ 520 #define NX_MDNS_RR_TYPE_MB 7 /* Mailbox domain name (EXPERIMENTAL) */ 521 #define NX_MDNS_RR_TYPE_MG 8 /* Mail group member (EXPERIMENTAL) */ 522 #define NX_MDNS_RR_TYPE_MR 9 /* Mail rename domain name (EXPERIMENTAL) */ 523 #define NX_MDNS_RR_TYPE_NULL 10 /* Null RR (EXPERIMENTAL) */ 524 #define NX_MDNS_RR_TYPE_WKS 11 /* Well known service description */ 525 #define NX_MDNS_RR_TYPE_PTR 12 /* Domain name pointer */ 526 #define NX_MDNS_RR_TYPE_HINFO 13 /* Host information */ 527 #define NX_MDNS_RR_TYPE_MINFO 14 /* Mailbox or mail list information */ 528 #define NX_MDNS_RR_TYPE_MX 15 /* Mail exchange */ 529 #define NX_MDNS_RR_TYPE_TXT 16 /* Text strings */ 530 #define NX_MDNS_RR_TYPE_AAAA 28 /* IPv6 Host address */ 531 #define NX_MDNS_RR_TYPE_SRV 33 /* The location of services */ 532 #define NX_MDNS_RR_TYPE_NSEC 47 /* The type of NSEC RR. */ 533 534 535 /* Define constants for Qtypes (queries). */ 536 #define NX_MDNS_RR_TYPE_AXFR 252 /* Request for a transfer of an entire zone */ 537 #define NX_MDNS_RR_TYPE_MAILB 253 /* Request for mailbox-related records (MB, MG or MR) */ 538 #define NX_MDNS_RR_TYPE_MAILA 254 /* Request for mail agent RRs (Obsolete - see MX) */ 539 #define NX_MDNS_RR_TYPE_ALL 255 /* Request for all records */ 540 541 542 /* Define resource record classes. */ 543 #define NX_MDNS_RR_CLASS_IN 1 /* Internet */ 544 #define NX_MDNS_RR_CLASS_CS 2 /* CSNET class (Obsolete) */ 545 #define NX_MDNS_RR_CLASS_CH 3 /* CHAOS class */ 546 #define NX_MDNS_RR_CLASS_HS 4 /* Hesiod [Dyer 87] */ 547 #define NX_MDNS_RR_CLASS_ALL 255 /* Any class */ 548 #define NX_MDNS_RR_CLASS_TOP_BIT 0x8000 /* The top bit of class. */ 549 550 551 /* Define the resource record state value. */ 552 #define NX_MDNS_RR_STATE_INVALID 0 /* Invalid resource records. */ 553 #define NX_MDNS_RR_STATE_PROBING 1 /* mDNS Server probing the resource records. */ 554 #define NX_MDNS_RR_STATE_ANNOUNCING 2 /* mDNS Server announcing the resource records. */ 555 #define NX_MDNS_RR_STATE_GOODBYE 3 /* mDNS Server send the Goodbye. */ 556 #define NX_MDNS_RR_STATE_SUSPEND 4 /* mDNS Server suspend the resource record. */ 557 #define NX_MDNS_RR_STATE_QUERY 5 /* mDNS Client send the initial query. */ 558 #define NX_MDNS_RR_STATE_UPDATING 6 /* mDNS Client send the query to update the RR. */ 559 #define NX_MDNS_RR_STATE_DELETE 7 /* mDNS Client delete the resource records. */ 560 #define NX_MDNS_RR_STATE_POOF_DELETE 8 /* mDNS Client delete the resource records by Passive Observation Of Failures.*/ 561 #define NX_MDNS_RR_STATE_VALID 9 /* Valid resource records. */ 562 563 564 /* Define the sending type of resource records. */ 565 #define NX_MDNS_RR_SEND_FLAG_CLEAR 0x00 /* Response should not send the Resource records. */ 566 #define NX_MDNS_RR_SEND_MULTICAST 0x01 /* Send the Resource records via multicast. */ 567 #define NX_MDNS_RR_SEND_UNICAST 0x02 /* Send the Resource records via unicast. */ 568 #define NX_MDNS_RR_SEND_FLAG_MASK 0xF0 /* The mask of send flag. */ 569 570 571 /* Define resource record owner. */ 572 #define NX_MDNS_RR_OWNER_LOCAL 0 /* Local Resource records. */ 573 #define NX_MDNS_RR_OWNER_REMOTE 1 /* Remote Resource records. */ 574 575 576 /* Define resource record set. */ 577 #define NX_MDNS_RR_SET_SHARED 0 /* Shared Resource records. */ 578 #define NX_MDNS_RR_SET_UNIQUE 1 /* Unique Resource records. */ 579 580 581 /* Define the resource record state mask. */ 582 #define NX_MDNS_RR_FLAG_PEER 0x0001 /* RR owner flag. */ 583 #define NX_MDNS_RR_FLAG_UNIQUE 0x0002 /* RR set flag. */ 584 #define NX_MDNS_RR_FLAG_CONTINUOUS_QUERY 0x0004 /* RR query type flag. */ 585 #define NX_MDNS_RR_FLAG_DUPLICATE_QUERY 0x0008 /* RR duplicate query flag. */ 586 #define NX_MDNS_RR_FLAG_ADDITIONAL 0x0010 /* RR additional flag. */ 587 #define NX_MDNS_RR_FLAG_UPDATING 0x0020 /* RR updating flag. */ 588 #define NX_MDNS_RR_FLAG_DELETE 0x0040 /* RR delete flag. */ 589 #define NX_MDNS_RR_FLAG_ANSWER 0x0080 /* RR answer flag. */ 590 #define NX_MDNS_RR_FLAG_KNOWN_ANSWER 0x0100 /* RR known answer flag. */ 591 #define NX_MDNS_RR_FLAG_AUTHORIY_ANSWER 0x0200 /* RR authority answer flag. */ 592 593 594 /* Define the type to search the same resource record. */ 595 #define NX_MDNS_RR_MATCH_ALL 1 /* Match all data: name, type, class, rdata. */ 596 #define NX_MDNS_RR_MATCH_EXCEPT_RDATA 2 /* Match the name, type, class, except rdata. */ 597 598 599 /* Define the type to set/add the resource record in cache from packet. */ 600 #define NX_MDNS_RR_OP_LOCAL_SET_QUESTION 0 /* Set resource record question in local cache. */ 601 #define NX_MDNS_RR_OP_LOCAL_SET_ANSWER 1 /* Set resource record answer in local cache. */ 602 #define NX_MDNS_RR_OP_PEER_SET_QUESTION 2 /* Set resource record question in peer cache. */ 603 #define NX_MDNS_RR_OP_PEER_ADD_ANSWER 3 /* Add resource record answer in peer cache. */ 604 605 606 /* Define the type for adding question/answer RR into the packet. */ 607 #define NX_MDNS_PACKET_ADD_RR_QUESTION 1 /* Add the question resource record into packet. */ 608 #define NX_MDNS_PACKET_ADD_RR_ANSWER 2 /* Add the answer resource record into packet. */ 609 610 611 /* Define mDNS packet type. */ 612 #define NX_MDNS_PACKET_QUERY 1 /* Query packet. */ 613 #define NX_MDNS_PACKET_PROBING 2 /* Probing packet. Is specific query. */ 614 #define NX_MDNS_PACKET_RESPONSE 3 /* Response packet. */ 615 616 617 /* Define the Add NSEC type. */ 618 #define NX_MDNS_ADD_NSEC_FOR_HOST 0 /* Add the NSEC for host name. */ 619 #define NX_MDNS_ADD_NSEC_FOR_SERVICE 1 /* Add the NSEC for service. */ 620 621 622 /* Define the RDATA structure. */ 623 624 /* A RDATA format 625 0 1 626 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 627 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 628 | ADDRESS | 629 | | 630 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 631 */ 632 633 typedef struct NX_MDNS_RR_A_STRUCT 634 { 635 ULONG nx_mdns_rr_a_address; 636 } NX_MDNS_RR_A; 637 638 639 /* NS RDATA format 640 0 1 641 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 642 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 643 / NSDNAME / 644 / / 645 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 646 */ 647 648 typedef struct NX_MDNS_RR_NS_STRUCT 649 { 650 UCHAR* nx_mdns_rr_ns_name; 651 } NX_MDNS_RR_NS; 652 653 /* MD RDATA format 654 0 1 655 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 656 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 657 / MADNAME / 658 / / 659 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 660 */ 661 662 typedef struct NX_MDNS_RR_MD_STRUCT 663 { 664 UCHAR* nx_mdns_rr_md_name; 665 } NX_MDNS_RR_MD; 666 667 /* MF RDATA format 668 0 1 669 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 670 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 671 / MADNAME / 672 / / 673 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 674 */ 675 676 typedef struct NX_MDNS_RR_MF_STRUCT 677 { 678 UCHAR* nx_mdns_rr_mf_name; 679 } NX_MDNS_RR_MF; 680 681 /* CNMAE RDATA format 682 0 1 683 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 684 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 685 / CNAME / 686 / / 687 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 688 */ 689 690 typedef struct NX_MDNS_RR_CNAME_STRUCT 691 { 692 UCHAR* nx_mdns_rr_cname_name; 693 } NX_MDNS_RR_CNAME; 694 695 /* SOA RDATA format 696 0 1 697 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 698 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 699 / MNAME / 700 / / 701 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 702 / RNAME / 703 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 704 | SERIAL | 705 | | 706 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 707 | REFRESH | 708 | | 709 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 710 | RETRY | 711 | | 712 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 713 | EXPIRE | 714 | | 715 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 716 | MINMUM | 717 | | 718 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 719 */ 720 721 typedef struct NX_MDNS_RR_SOA_STRUCT 722 { 723 UCHAR* nx_mdns_rr_soa_mname; 724 UCHAR* nx_mdns_rr_soa_rname; 725 ULONG nx_mdns_rr_soa_serial; 726 ULONG nx_mdns_rr_soa_refresh; 727 ULONG nx_mdns_rr_soa_retry; 728 ULONG nx_mdns_rr_soa_expire; 729 ULONG nx_mdns_rr_soa_minmum; 730 } NX_MDNS_RR_SOA; 731 732 /* MB RDATA format 733 0 1 734 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 735 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 736 / MADNAME / 737 / / 738 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 739 */ 740 741 typedef struct NX_MDNS_RR_MB_STRUCT 742 { 743 UCHAR* nx_mdns_rr_mb_name; 744 } NX_MDNS_RR_MB; 745 746 /* MG RDATA format 747 0 1 748 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 749 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 750 / MGMNAME / 751 / / 752 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 753 */ 754 755 typedef struct NX_MDNS_RR_MG_STRUCT 756 { 757 UCHAR* nx_mdns_rr_mg_name; 758 } NX_MDNS_RR_MG; 759 760 /* MR RDATA format 761 0 1 762 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 763 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 764 / NEWNAME / 765 / / 766 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 767 */ 768 769 typedef struct NX_MDNS_RR_MR_STRUCT 770 { 771 UCHAR* nx_mdns_rr_mr_name; 772 } NX_MDNS_RR_MR; 773 774 /* NULL RDATA format 775 0 1 776 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 777 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 778 / <anything> / 779 / / 780 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 781 */ 782 783 typedef struct NX_MDNS_RR_NULL_STRUCT 784 { 785 UCHAR* nx_mdns_rr_null_ptr; 786 } NX_MDNS_RR_NULL; 787 788 /* WKS RDATA format 789 0 1 790 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 791 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 792 | ADDRESS | 793 | | 794 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 795 | PROTOCOL | | 796 |--+--+--+--+--+--+--+--+ | 797 / <BIT MAP> / 798 / / 799 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 800 */ 801 802 typedef struct NX_MDNS_RR_WKS_STRUCT 803 { 804 ULONG nx_mdns_rr_wks_address; 805 UCHAR nx_mdns_rr_wks_protocol; 806 UCHAR nx_mdns_rr_wks_reserved[3]; 807 UCHAR* nx_mdns_rr_wks_bit_map; 808 } NX_MDNS_RR_WKS; 809 810 /* PTR RDATA format 811 0 1 812 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 813 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 814 / PTRDNAME / 815 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 816 */ 817 818 typedef struct NX_MDNS_RR_PTR_STRUCT 819 { 820 UCHAR* nx_mdns_rr_ptr_name; 821 } NX_MDNS_RR_PTR; 822 823 /* HINFO RDATA format 824 0 1 825 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 826 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 827 / CPU / 828 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 829 / OS / 830 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 831 */ 832 833 typedef struct NX_MDNS_RR_HINFO_STRUCT 834 { 835 UCHAR* nx_mdns_rr_hinfo_cpu; 836 UCHAR* nx_mdns_rr_hinfo_os; 837 } NX_MDNS_RR_HINFO; 838 839 /* MINFO RDATA format 840 0 1 841 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 842 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 843 / RMAILBX / 844 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 845 / EMAILBX / 846 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 847 */ 848 849 typedef struct NX_MDNS_RR_MINFO_STRUCT 850 { 851 UCHAR* nx_mdns_rr_minfo_cpu; 852 UCHAR* nx_mdns_rr_minfo_os; 853 } NX_MDNS_RR_MINFO; 854 855 /* MX RDATA format 856 0 1 857 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 858 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 859 | PREFERENCE | 860 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 861 / NEWNAME / 862 / / 863 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 864 */ 865 866 typedef struct NX_MDNS_RR_MX_STRUCT 867 { 868 UCHAR* nx_mdns_rr_mx_name; 869 USHORT nx_mdns_rr_mx_preference; 870 USHORT nx_mdns_rr_mx_reserved; 871 } NX_MDNS_RR_MX; 872 873 /* TXT RDATA format 874 0 1 875 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 876 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 877 / TXT-DATA / 878 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 879 */ 880 881 typedef struct NX_MDNS_RR_TXT_STRUCT 882 { 883 UCHAR* nx_mdns_rr_txt_data; 884 } NX_MDNS_RR_TXT; 885 886 /* AAAA RDATA format 887 0 1 888 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 889 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 890 | | 891 | | 892 | | 893 | IPv6 ADDRESS | 894 | | 895 | | 896 | | 897 | | 898 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 899 */ 900 901 typedef struct NX_MDNS_RR_AAAA_STRUCT 902 { 903 ULONG nx_mdns_rr_aaaa_address[4]; 904 } NX_MDNS_RR_AAAA; 905 906 /* SRV RDATA format 907 0 1 908 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 909 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 910 | PRIORITY | 911 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 912 | WEIGHTS | 913 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 914 | PORT | 915 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 916 / TARGET / 917 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 918 */ 919 920 typedef struct NX_MDNS_RR_SRV_STRUCT 921 { 922 UCHAR* nx_mdns_rr_srv_target; 923 USHORT nx_mdns_rr_srv_priority; 924 USHORT nx_mdns_rr_srv_weights; 925 USHORT nx_mdns_rr_srv_port; 926 USHORT nx_mdns_rr_srv_reserved; 927 } NX_MDNS_RR_SRV; 928 929 930 /* NSEC RDATA format 931 0 1 932 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 933 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 934 / Next Domain Name / 935 / / 936 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 937 / Type Bit Maps / 938 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 939 */ 940 941 typedef struct NX_MDNS_RR_NSEC_STRUCT 942 { 943 UCHAR* nx_mdns_rr_nsec_next_domain; 944 UCHAR nx_mdns_rr_nsec_window_block; 945 UCHAR nx_mdns_rr_nsec_bitmap_length; 946 UCHAR nx_mdns_rr_nsec_bitmap[5]; /* Can match the max rr type 6 * 7 = 42. */ 947 UCHAR nx_mdns_rr_nsec_additional_send; /* 0 indicate answer, 1 indicate additional. */ 948 } NX_MDNS_RR_NSEC; 949 950 951 /* RR definitions. RFC1035. */ 952 /* RR Format. 953 0 1 954 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 955 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 956 | | 957 / NAME / 958 / / 959 | | 960 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 961 | TYPE | 962 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 963 | CLASS | 964 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 965 | TTL | 966 | | 967 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 968 | RDLENGTH | 969 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 970 / RDATA / 971 / / 972 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 973 */ 974 975 /* The following data structure is used to store the resource records(RRs). */ 976 typedef struct NX_MDNS_RR_STRUCT 977 { 978 979 UCHAR* nx_mdns_rr_name; /* Owner's name,i.e., the name of the node to 980 which this resource record pertains. */ 981 982 USHORT nx_mdns_rr_type; /* RR TYPE. */ 983 984 USHORT nx_mdns_rr_class; /* RR CLASS. */ 985 986 ULONG nx_mdns_rr_ttl; /* The time interval that the RR may be cached before the source of 987 the information should again be consulted. */ 988 989 USHORT nx_mdns_rr_rdata_length; /* The length of rdata. nx_mdns_rr_rdata */ 990 991 UCHAR nx_mdns_rr_state; /* The resource records state, Probing, Annoncing, Valid. */ 992 993 UCHAR nx_mdns_rr_retransmit_count; /* Define the count for the retransmit the RR. */ 994 995 ULONG nx_mdns_rr_retransmit_lifetime; /* Define the lifetime for retransmit the RR. */ 996 997 ULONG nx_mdns_rr_timer_count; /* Define the timer count for the retransmit the RR. */ 998 999 ULONG nx_mdns_rr_elapsed_time; /* Define the time elasped for the peer RR. */ 1000 1001 ULONG nx_mdns_rr_remaining_ticks; /* Define the remaining ticks of the peer RR. */ 1002 1003 ULONG nx_mdns_rr_response_interval; /* Define the time interval for two responses. Local RR. */ 1004 1005 UCHAR nx_mdns_rr_interface_index; /* RR interface index. */ 1006 1007 UCHAR nx_mdns_rr_announcing_max_time; /* RR announcing max time. Local RR. */ 1008 1009 UCHAR nx_mdns_rr_conflict_count; /* The conflict count of service name or host name. Local RR. */ 1010 1011 UCHAR nx_mdns_rr_poof_count; /* The Passive Observation Of Failures count of resource record. Peer RR.*/ 1012 1013 UCHAR nx_mdns_rr_count; /* The count of same _services._dns-sd._udp.local PTR resource reocrd. */ 1014 1015 UCHAR nx_mdns_rr_send_flag; /* The flag for seding resource record. */ 1016 1017 USHORT nx_mdns_rr_word; 1018 1019 /* Define the state, owner, flag, set of the resource records. This word contains 1020 the following information: 1021 1022 bits 0 RR Owner, the owner of resource record, 1023 0 indicates local RR, 1 indicates peer RR. 1024 bits 1 RR Set, the set of resource record, 1025 0 indicates shared RR, 1 indicates unique RR. 1026 bits 2 RR query type, the query type of resource record, 1027 0 indicates query the RR use One-shot method, 1 indicates query the RR use Continuous method. 1028 bits 3 RR additional flag, send this resource record as the additional RR. 1029 bits 4 RR query duplicate flag, this resource record is the duplicate quesiton. 1030 bits 5 RR updating flag, this resource record need to be maintenance. 1031 bits 6 RR delete flag, this resource record need to be deleted. 1032 bits 7 RR answer flag, this resource record has been added in answer section. 1033 bits 8 RR known answer flag, send this resource record as the known answer. 1034 bits 9 RR authority answer flag, send this resource record as the authority answer. 1035 */ 1036 1037 /* Union that holds resource record data. */ 1038 union nx_mdns_rr_rdata_union 1039 { 1040 NX_MDNS_RR_A nx_mdns_rr_rdata_a; 1041 NX_MDNS_RR_AAAA nx_mdns_rr_rdata_aaaa; 1042 NX_MDNS_RR_PTR nx_mdns_rr_rdata_ptr; 1043 NX_MDNS_RR_SRV nx_mdns_rr_rdata_srv; 1044 NX_MDNS_RR_TXT nx_mdns_rr_rdata_txt; 1045 1046 #ifdef NX_MDNS_ENABLE_SERVER_NEGATIVE_RESPONSES 1047 NX_MDNS_RR_NSEC nx_mdns_rr_rdata_nsec; 1048 #endif /* NX_MDNS_ENABLE_SERVER_NEGATIVE_RESPONSES */ 1049 1050 #ifdef NX_MDNS_ENABLE_EXTENDED_RR_TYPES 1051 NX_MDNS_RR_CNAME nx_mdns_rr_rdata_cname; 1052 NX_MDNS_RR_NS nx_mdns_rr_rdata_ns; 1053 NX_MDNS_RR_MX nx_mdns_rr_rdata_mx; 1054 #endif /* NX_MDNS_ENABLE_EXTENDED_RR_TYPES */ 1055 } nx_mdns_rr_rdata; 1056 1057 }NX_MDNS_RR; 1058 1059 /* Buffer usage. */ 1060 /* 1061 1062 |-----------+-----------+-----------+-----------+-----------+------------+-----------+------------+------------| 1063 | HEAD |NX_MDNS_RR |NX_MDNS_RR | ..........| STRING | CNT | LEN | STRING | CNT | LEN | TAIL | 1064 |-----------+-----------+-----------+-----------+-----------+------------+-----------+------------+------------| 1065 1066 HEAD: First unused memory at the front of cache. The size is 4 bytes. 1067 NX_MDNS_RR: The Resource Record struct, the size is sizeof(NX_MDNS_RR). 1068 TAIL: It points to the last used memory at the back of cache. Its size is 4 bytes. 1069 LEN: It is the length of STRING, plus the CNT and LEN fields. This field takes 2 bytes. 1070 CNT: It is the reference count of STRING. It takes 2 bytes. 1071 STRING: The content of name string and rdata string, must be null-terminated. Padded with 0s to be 4 byte aligned. 1072 */ 1073 1074 1075 /* Define the Service structure. */ 1076 typedef struct NX_MDNS_SERVICE_STRUCT 1077 { 1078 1079 UCHAR* service_name; /* Service instance. */ 1080 1081 UCHAR* service_type; /* Service type. */ 1082 1083 UCHAR* service_domain; /* Service domain. */ 1084 1085 UCHAR service_text[NX_MDNS_NAME_MAX+1]; /* Service txt information. */ 1086 1087 UCHAR service_host[NX_MDNS_HOST_NAME_MAX + 1]; /* The target host of the service. */ 1088 1089 USHORT service_port; /* Service port. */ 1090 1091 USHORT service_weight; /* Service weight. */ 1092 1093 USHORT service_priority; /* Service priority. */ 1094 1095 UCHAR interface_index; /* Service interface idnex. */ 1096 1097 UCHAR service_text_valid; /* Flag indicating text fields are valid. */ 1098 1099 ULONG service_ipv4; /* The IPv4 address for service. */ 1100 1101 ULONG service_ipv6[NX_MDNS_IPV6_ADDRESS_COUNT][4]; /* The IPv6 address for service.*/ 1102 1103 UCHAR buffer[NX_MDNS_NAME_MAX+1]; /* The buffer for service instance, type and domain.*/ 1104 1105 } NX_MDNS_SERVICE; 1106 1107 1108 /* Define the basic Multicast DNS data structure. */ 1109 1110 typedef struct NX_MDNS_STRUCT 1111 { 1112 ULONG nx_mdns_id; /* Multicast DNS ID. */ 1113 1114 NX_IP* nx_mdns_ip_ptr; /* Pointer to associated IP structure. */ 1115 1116 NX_UDP_SOCKET nx_mdns_socket; /* Multicast DNS Socket. */ 1117 1118 TX_MUTEX nx_mdns_mutex; /* Multicast DNS Mutex. */ 1119 1120 TX_TIMER nx_mdns_timer; /* Multicast DNS TIMER. */ 1121 1122 TX_THREAD nx_mdns_thread; /* Multicast DNS processing thread. */ 1123 1124 TX_EVENT_FLAGS_GROUP nx_mdns_events; /* Multicast DNS event. */ 1125 1126 NX_PACKET_POOL* nx_mdns_packet_pool_ptr; /* Pointer to the packet pool. */ 1127 1128 UCHAR nx_mdns_host_name[NX_MDNS_HOST_NAME_MAX]; /* The Embedded Device name supplied at create. */ 1129 1130 UCHAR nx_mdns_domain_name[NX_MDNS_DOMAIN_NAME_MAX + 1]; /* The mDNS domain name. */ 1131 1132 UINT nx_mdns_interface_enabled[NX_MAX_PHYSICAL_INTERFACES]; /* Interface enable status. */ 1133 1134 #ifdef NX_MDNS_ENABLE_IPV6 1135 UINT nx_mdns_ipv6_address_index[NX_MAX_PHYSICAL_INTERFACES]; /* IPv6 link local address index. */ 1136 #endif /* NX_MDNS_ENABLE_IPV6 */ 1137 1138 /* Define the UDP receive suspension list head associated with a count of 1139 how many threads are suspended attempting to receive from the same TCP port. */ 1140 TX_THREAD* nx_mdns_rr_receive_suspension_list; /* The suspended thread. */ 1141 1142 ULONG nx_mdns_rr_receive_suspended_count; /* The suspended count. */ 1143 1144 UCHAR* nx_mdns_local_service_cache; /* Pointer to the cache. */ 1145 1146 UINT nx_mdns_local_service_cache_size; /* The size of cache. */ 1147 1148 UCHAR* nx_mdns_peer_service_cache; /* Pointer to the cache. */ 1149 1150 UINT nx_mdns_peer_service_cache_size; /* The size of cache. */ 1151 1152 ULONG nx_mdns_service_ignore_mask; /* The mask specifying services types to be ignored. */ 1153 1154 ULONG nx_mdns_service_notify_mask; /* The service mask for listen the service and notify the applicaiton. */ 1155 1156 ULONG nx_mdns_timer_min_count; /* The minimum timer count indicate the intervals between last timer event and next timer event. */ 1157 1158 USHORT nx_mdns_announcing_period; /* Number of ticks for the initial period. Default value is 1 second. */ 1159 1160 USHORT nx_mdns_announcing_retrans_interval; /* Number of ticks to wait ticks before sending out repeated announcement message. */ 1161 1162 ULONG nx_mdns_announcing_period_interval; /* Number of ticks between two announcing period. */ 1163 1164 UCHAR nx_mdns_announcing_count; /* Number of repetitions between one announcing period. Default value is 1. */ 1165 1166 UCHAR nx_mdns_announcing_factor; /* Telescopic factor, default value is 0. 2^k. */ 1167 1168 UCHAR nx_mdns_announcing_max_time; /* Max time of Announcing period, default value is 3. */ 1169 1170 UCHAR nx_mdns_started; /* mDNS task has been started. */ 1171 1172 ULONG nx_mdns_local_rr_count; /* The number of resource records in the local cache. */ 1173 1174 ULONG nx_mdns_local_string_count; /* The number of strings in the local cache. */ 1175 1176 ULONG nx_mdns_local_string_bytes; /* The number of total bytes in string table in the local cache. */ 1177 1178 ULONG nx_mdns_peer_rr_count; /* The number of resource records in the peer cache. */ 1179 1180 ULONG nx_mdns_peer_string_count; /* The number of strings in the peer cache. */ 1181 1182 ULONG nx_mdns_peer_string_bytes; /* The number of total bytes in string table in the peer cache. */ 1183 1184 ULONG nx_mdns_first_probing_delay; /* The delay of first probing for unique RR. */ 1185 1186 VOID (*nx_mdns_probing_notify)(struct NX_MDNS_STRUCT *, UCHAR *, UINT); 1187 1188 VOID (*nx_mdns_service_change_notify)(struct NX_MDNS_STRUCT *, struct NX_MDNS_SERVICE_STRUCT *, UINT); 1189 1190 VOID (*nx_mdns_cache_full_notify)(struct NX_MDNS_STRUCT *, UINT, UINT); 1191 1192 } NX_MDNS; 1193 1194 1195 #ifndef NX_MDNS_SOURCE_CODE 1196 1197 /* Application caller is present, perform API mapping. */ 1198 1199 /* Determine if error checking is desired. If so, map mDNS API functions 1200 to the appropriate error checking front-ends. Otherwise, map API 1201 functions to the core functions that actually perform the work. 1202 Note: error checking is enabled by default. */ 1203 1204 #ifdef NX_DISABLE_ERROR_CHECKING 1205 1206 /* Services without error checking. */ 1207 1208 #define nx_mdns_create _nx_mdns_create 1209 #define nx_mdns_delete _nx_mdns_delete 1210 #define nx_mdns_enable _nx_mdns_enable 1211 #define nx_mdns_disable _nx_mdns_disable 1212 #define nx_mdns_cache_notify_set _nx_mdns_cache_notify_set 1213 #define nx_mdns_cache_notify_clear _nx_mdns_cache_notify_clear 1214 #define nx_mdns_domain_name_set _nx_mdns_domain_name_set 1215 1216 #ifndef NX_MDNS_DISABLE_SERVER 1217 #define nx_mdns_service_announcement_timing_set _nx_mdns_service_announcement_timing_set 1218 #define nx_mdns_service_add _nx_mdns_service_add 1219 #define nx_mdns_service_delete _nx_mdns_service_delete 1220 #define nx_mdns_local_cache_clear _nx_mdns_local_cache_clear 1221 #endif /* NX_MDNS_DISABLE_SERVER */ 1222 1223 #ifndef NX_MDNS_DISABLE_CLIENT 1224 #define nx_mdns_service_one_shot_query _nx_mdns_service_one_shot_query 1225 #define nx_mdns_service_continuous_query _nx_mdns_service_continuous_query 1226 #define nx_mdns_service_query_stop _nx_mdns_service_query_stop 1227 #define nx_mdns_service_lookup _nx_mdns_service_lookup 1228 #define nx_mdns_service_ignore_set _nx_mdns_service_ignore_set 1229 #define nx_mdns_service_notify_set _nx_mdns_service_notify_set 1230 #define nx_mdns_service_notify_clear _nx_mdns_service_notify_clear 1231 #define nx_mdns_host_address_get _nx_mdns_host_address_get 1232 #define nx_mdns_peer_cache_clear _nx_mdns_peer_cache_clear 1233 #endif /* NX_MDNS_DISABLE_CLIENT */ 1234 1235 #else 1236 1237 #define nx_mdns_create _nxe_mdns_create 1238 #define nx_mdns_delete _nxe_mdns_delete 1239 #define nx_mdns_enable _nxe_mdns_enable 1240 #define nx_mdns_disable _nxe_mdns_disable 1241 #define nx_mdns_cache_notify_set _nxe_mdns_cache_notify_set 1242 #define nx_mdns_cache_notify_clear _nxe_mdns_cache_notify_clear 1243 #define nx_mdns_domain_name_set _nxe_mdns_domain_name_set 1244 1245 #ifndef NX_MDNS_DISABLE_SERVER 1246 #define nx_mdns_service_announcement_timing_set _nxe_mdns_service_announcement_timing_set 1247 #define nx_mdns_service_add _nxe_mdns_service_add 1248 #define nx_mdns_service_delete _nxe_mdns_service_delete 1249 #define nx_mdns_local_cache_clear _nxe_mdns_local_cache_clear 1250 #endif /* NX_MDNS_DISABLE_SERVER */ 1251 1252 #ifndef NX_MDNS_DISABLE_CLIENT 1253 #define nx_mdns_service_one_shot_query _nxe_mdns_service_one_shot_query 1254 #define nx_mdns_service_continuous_query _nxe_mdns_service_continuous_query 1255 #define nx_mdns_service_query_stop _nxe_mdns_service_query_stop 1256 #define nx_mdns_service_lookup _nxe_mdns_service_lookup 1257 #define nx_mdns_service_ignore_set _nxe_mdns_service_ignore_set 1258 #define nx_mdns_service_notify_set _nxe_mdns_service_notify_set 1259 #define nx_mdns_service_notify_clear _nxe_mdns_service_notify_clear 1260 #define nx_mdns_host_address_get _nxe_mdns_host_address_get 1261 #define nx_mdns_peer_cache_clear _nxe_mdns_peer_cache_clear 1262 #endif /* NX_MDNS_DISABLE_CLIENT */ 1263 1264 #endif /* NX_DISABLE_ERROR_CHECKING */ 1265 1266 #endif /* NX_MDNS_SOURCE_CODE */ 1267 1268 1269 /* Define Thread function prototypes. */ 1270 UINT _nx_mdns_create(NX_MDNS *mdns_ptr, NX_IP *ip_ptr, NX_PACKET_POOL *packet_pool, 1271 UINT priority, VOID *stack_ptr, ULONG stack_size, UCHAR *host_name, 1272 VOID *local_cache_ptr, UINT local_cache_size, 1273 VOID *peer_cache_ptr, UINT peer_cache_size, 1274 VOID (*probing_notify)(NX_MDNS *mdns_ptr, UCHAR *name, UINT probing_state)); 1275 UINT _nxe_mdns_create(NX_MDNS *mdns_ptr, NX_IP *ip_ptr, NX_PACKET_POOL *packet_pool, 1276 UINT priority, VOID *stack_ptr, ULONG stack_size, UCHAR *host_name, 1277 VOID *local_cache_ptr, UINT local_cache_size, 1278 VOID *peer_cache_ptr, UINT peer_cache_size, 1279 VOID (*probing_notify)(NX_MDNS *mdns_ptr, UCHAR *name, UINT probing_state)); 1280 UINT _nx_mdns_delete(NX_MDNS *mdns_ptr); 1281 UINT _nxe_mdns_delete(NX_MDNS *mdns_ptr); 1282 UINT _nx_mdns_enable(NX_MDNS *mdns_ptr, UINT interface_index); 1283 UINT _nxe_mdns_enable(NX_MDNS *mdns_ptr, UINT interface_index); 1284 UINT _nx_mdns_disable(NX_MDNS *mdns_ptr, UINT interface_index); 1285 UINT _nxe_mdns_disable(NX_MDNS *mdns_ptr, UINT interface_index); 1286 UINT _nx_mdns_cache_notify_set(NX_MDNS *mdns_ptr, VOID (*cache_full_notify_cb)(NX_MDNS *mdns_ptr, UINT state, UINT cache_type)); 1287 UINT _nxe_mdns_cache_notify_set(NX_MDNS *mdns_ptr, VOID (*cache_full_notify_cb)(NX_MDNS *mdns_ptr, UINT state, UINT cache_type)); 1288 UINT _nx_mdns_cache_notify_clear(NX_MDNS *mdns_ptr); 1289 UINT _nxe_mdns_cache_notify_clear(NX_MDNS *mdns_ptr); 1290 UINT _nx_mdns_domain_name_set(NX_MDNS *mdns_ptr, UCHAR *domain_name); 1291 UINT _nxe_mdns_domain_name_set(NX_MDNS *mdns_ptr, UCHAR *domain_name); 1292 1293 #ifndef NX_MDNS_DISABLE_SERVER 1294 UINT _nx_mdns_service_announcement_timing_set(NX_MDNS *mdns_ptr, UINT t, UINT p, UINT k, UINT retrans_interval, ULONG period_interval, UINT max_time); 1295 UINT _nxe_mdns_service_announcement_timing_set(NX_MDNS *mdns_ptr, UINT t, UINT p, UINT k, UINT retrans_interval, ULONG period_interval, UINT max_time); 1296 UINT _nx_mdns_service_add(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type, UCHAR *txt, ULONG ttl, 1297 USHORT priority, USHORT weights, USHORT port, UCHAR is_unique, UINT interface_index); 1298 UINT _nxe_mdns_service_add(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type, UCHAR *txt, ULONG ttl, 1299 USHORT priority, USHORT weights, USHORT port, UCHAR is_unique, UINT interface_index); 1300 UINT _nx_mdns_service_delete(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type); 1301 UINT _nxe_mdns_service_delete(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type); 1302 UINT _nx_mdns_local_cache_clear(NX_MDNS *mdns_ptr); 1303 UINT _nxe_mdns_local_cache_clear(NX_MDNS *mdns_ptr); 1304 #endif /* NX_MDNS_DISABLE_SERVER */ 1305 1306 #ifndef NX_MDNS_DISABLE_CLIENT 1307 UINT _nx_mdns_service_one_shot_query(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type, NX_MDNS_SERVICE *service, UINT timeout); 1308 UINT _nxe_mdns_service_one_shot_query(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type, NX_MDNS_SERVICE *service, UINT timeout); 1309 UINT _nx_mdns_service_continuous_query(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type); 1310 UINT _nxe_mdns_service_continuous_query(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type); 1311 UINT _nx_mdns_service_query_stop(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type); 1312 UINT _nxe_mdns_service_query_stop(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type); 1313 UINT _nx_mdns_service_lookup(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type, UINT service_index, NX_MDNS_SERVICE *service); 1314 UINT _nxe_mdns_service_lookup(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type, UINT service_index, NX_MDNS_SERVICE *service); 1315 UINT _nx_mdns_service_ignore_set(NX_MDNS *mdns_ptr, ULONG service_mask); 1316 UINT _nxe_mdns_service_ignore_set(NX_MDNS *mdns_ptr, ULONG service_mask); 1317 UINT _nx_mdns_service_notify_set(NX_MDNS *mdns_ptr, ULONG service_mask, 1318 VOID (*service_change_notify)(NX_MDNS *mdns_ptr, NX_MDNS_SERVICE *service_ptr, UINT state)); 1319 UINT _nxe_mdns_service_notify_set(NX_MDNS *mdns_ptr, ULONG service_mask, 1320 VOID (*service_change_notify)(NX_MDNS *mdns_ptr, NX_MDNS_SERVICE *service_ptr, UINT state)); 1321 UINT _nx_mdns_service_notify_clear(NX_MDNS *mdns_ptr); 1322 UINT _nxe_mdns_service_notify_clear(NX_MDNS *mdns_ptr); 1323 UINT _nx_mdns_host_address_get(NX_MDNS *mdns_ptr, UCHAR *host_name, ULONG *ipv4_address, ULONG *ipv6_address, UINT timeout); 1324 UINT _nxe_mdns_host_address_get(NX_MDNS *mdns_ptr, UCHAR *host_name, ULONG *ipv4_address, ULONG *ipv6_address, UINT timeout); 1325 UINT _nx_mdns_peer_cache_clear(NX_MDNS *mdns_ptr); 1326 UINT _nxe_mdns_peer_cache_clear(NX_MDNS *mdns_ptr); 1327 #endif /* NX_MDNS_DISABLE_CLIENT */ 1328 1329 1330 /* Determine if a C++ compiler is being used. If so, complete the standard 1331 C conditional started above. */ 1332 #ifdef __cplusplus 1333 } 1334 #endif 1335 1336 #endif /* NXD_MDNS_H */ 1337 1338
