1 /**************************************************************************/ 2 /* */ 3 /* Copyright (c) Microsoft Corporation. All rights reserved. */ 4 /* */ 5 /* This software is licensed under the Microsoft Software License */ 6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */ 7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ 8 /* and in the root directory of this software. */ 9 /* */ 10 /**************************************************************************/ 11 12 13 /**************************************************************************/ 14 /**************************************************************************/ 15 /** */ 16 /** NetX Component */ 17 /** */ 18 /** Multicast Domain Name System (mDNS) */ 19 /** */ 20 /**************************************************************************/ 21 /**************************************************************************/ 22 23 /**************************************************************************/ 24 /* */ 25 /* APPLICATION INTERFACE DEFINITION RELEASE */ 26 /* */ 27 /* nxd_mdns.h PORTABLE C */ 28 /* 6.3.0 */ 29 /* AUTHOR */ 30 /* */ 31 /* Yuxin Zhou, Microsoft Corporation */ 32 /* */ 33 /* DESCRIPTION */ 34 /* */ 35 /* This file defines the NetX Multicast Domain Name System (mDNS) */ 36 /* component, including all data types and external references. */ 37 /* It is assumed that nx_api.h and nx_port.h have already been */ 38 /* included. */ 39 /* */ 40 /* RELEASE HISTORY */ 41 /* */ 42 /* DATE NAME DESCRIPTION */ 43 /* */ 44 /* 05-19-2020 Yuxin Zhou Initial Version 6.0 */ 45 /* 09-30-2020 Yuxin Zhou Modified comment(s), improved */ 46 /* buffer length verification, */ 47 /* resulting in version 6.1 */ 48 /* 12-31-2020 Yuxin Zhou Modified comment(s), */ 49 /* prevented infinite loop in */ 50 /* name compression, */ 51 /* resulting in version 6.1.3 */ 52 /* 04-25-2022 Yuxin Zhou Modified comment(s), */ 53 /* fixed the issue of timer, */ 54 /* resulting in version 6.1.11 */ 55 /* 10-31-2023 Bo Chen Modified comment(s), and */ 56 /* corrected the symbols check,*/ 57 /* resulting in version 6.3.0 */ 58 /* */ 59 /**************************************************************************/ 60 61 #ifndef NXD_MDNS_H 62 #define NXD_MDNS_H 63 64 /* Determine if a C++ compiler is being used. If so, ensure that standard 65 C is used to process the API information. */ 66 67 68 69 #ifdef __cplusplus 70 71 /* Yes, C++ compiler is present. Use standard C. */ 72 extern "C" { 73 74 #endif 75 76 #include "nx_api.h" 77 #include "nx_udp.h" 78 #include "nx_ip.h" 79 #ifdef FEATURE_NX_IPV6 80 #include "nx_ipv6.h" 81 #endif /* FEATURE_NX_IPV6 */ 82 83 84 /* Define the Multicast DNS ID. */ 85 #define NX_MDNS_ID 0x4d444e53UL 86 87 /* Define macros that get the data on unaligned address. */ 88 #define NX_MDNS_GET_USHORT_DATA(data) (USHORT)((*(data) << 8) | (*(data + 1))) 89 #define NX_MDNS_GET_ULONG_DATA(data) (ULONG)((*(data) << 24) | (*(data + 1) << 16) | (*(data + 2) << 8) | (*(data + 3))) 90 91 /* Disable the mDNS Server functionality. By default mDNS server 92 function is enabled. To remove the mDNS server function from 93 the mDNS library, uncomment the following line. */ 94 /* 95 #define NX_MDNS_DISABLE_SERVER 96 */ 97 98 /* Disable the mDNS Client functionality. By default mDNS client 99 function is enabled. To remove the mDNS client function from 100 the mDNS library, uncomment the following line. */ 101 /* 102 #define NX_MDNS_DISABLE_CLIENT 103 */ 104 105 /* Enable the feature to check the address and port of mDNS message. 106 By default is enabled. To remove it from the mDNS library, 107 comment the following line. */ 108 #define NX_MDNS_ENABLE_ADDRESS_CHECK 109 110 /* Enable the Passive Observation Of Failures feature for Client. 111 By default is enabled. To remove it from the mDNS library, 112 comment the following line. 113 Note: This will have no effect if NX_MDNS_DISABLE_CLIENT is defined. */ 114 #define NX_MDNS_ENABLE_CLIENT_POOF 115 116 /* Enable the feature for Server to generate the Negative Responses. 117 By default is enabled. To remove it from the mDNS library, 118 comment the following line. 119 Note: This will have no effect if NX_MDNS_DISABLE_SERVER is defined. */ 120 #define NX_MDNS_ENABLE_SERVER_NEGATIVE_RESPONSES 121 122 123 /* Enable mDNS IPv6 feature, send/process mDNS message over IPv6 address. 124 By default mDNS IPv6 function is disabled. To enable this feature, 125 uncomment the following line. */ 126 /* 127 #define NX_MDNS_ENABLE_IPV6 128 */ 129 130 #ifdef NX_MDNS_ENABLE_IPV6 131 132 #ifndef FEATURE_NX_IPV6 133 #error "mDNS IPv6 is not supported if IPv6 is not enabled." 134 #endif /* FEATURE_NX_IPV6 */ 135 136 #ifndef NX_ENABLE_IPV6_MULTICAST 137 #error "mDNS IPv6 is not supported if IPv6 multicast is not enabled." 138 #endif /* NX_ENABLE_IPV6_MULTICAST */ 139 140 #ifndef NX_MDNS_DISABLE_SERVER 141 #ifndef NX_ENABLE_IPV6_ADDRESS_CHANGE_NOTIFY 142 #error "mDNS IPv6 is not supported if IPv6 address change notify is not enabled." 143 #endif /* NX_ENABLE_IPV6_ADDRESS_CHANGE_NOTIFY */ 144 #endif /* NX_MDNS_DISABLE_SERVER */ 145 146 #endif /* NX_MDNS_ENABLE_IPV6 */ 147 148 149 /* Define the IPV6 address count of the host name. */ 150 #ifndef NX_MDNS_IPV6_ADDRESS_COUNT 151 #define NX_MDNS_IPV6_ADDRESS_COUNT 2 152 #endif /* NX_MDNS_IPV6_ADDRESS_COUNT */ 153 154 155 /* Define message and name limits. */ 156 #define NX_MDNS_TYPE_MAX 21 /* Maximum Type size, <sn>._tcp, <sn> may be up to 15 bytes, 157 plus the underscore and length byte. Including the "_udp" or "_tcp". */ 158 #define NX_MDNS_LABEL_MAX 63 /* Maximum Label (between two dots) size */ 159 #define NX_MDNS_NAME_MAX 255 /* Maximum Name size */ 160 #define NX_MDNS_IP_LOOKUP_SIZE 75 /* IPv6 needs 66 characters for the address plus 8 for the ip6.arpa plus null */ 161 /* IPv4 needs 12 characters max for the address plus 12 for the IN-ADDR.ARPA plus null */ 162 163 164 /* Define the mDNS's host name cache size. Keep four-byte alignment. */ 165 /* Note: The real host name size plus conflict size (4) 166 must not exceed NX_MDNS_LABEL_MAX and NX_MDNS_HOST_NAME_MAX. 167 such as: 168 the real host name: "NETX-MDNS-HOST" 169 the conflict name: " (2)" 170 the final name: "NETX-MDNS-HOST (2)". */ 171 #ifndef NX_MDNS_HOST_NAME_MAX 172 #define NX_MDNS_HOST_NAME_MAX 64 173 #endif /* NX_MDNS_HOST_NAME_MAX */ 174 175 176 /* Define the mDNS's service name cache size. Keep four-byte alignment. */ 177 /* Note: The real service name size plus conflict size (4) 178 must not exceed NX_MDNS_LABEL_MAX and NX_MDNS_SERVICE_NAME_MAX. 179 such as: 180 the real service name: "NETX-MDNS-SERVICE" 181 the conflict name: " (2)" 182 the final service name: "NETX-MDNS-SERVICE (2)". */ 183 #ifndef NX_MDNS_SERVICE_NAME_MAX 184 #define NX_MDNS_SERVICE_NAME_MAX 64 185 #endif /* NX_MDNS_SERVICE_NAME_MAX */ 186 187 188 /* Define the mDNS's domain name max size. */ 189 #ifndef NX_MDNS_DOMAIN_NAME_MAX 190 #define NX_MDNS_DOMAIN_NAME_MAX 16 191 #endif /* NX_MDNS_DOMAIN_NAME_MAX */ 192 193 /* NX_MDNS_DOMAIN_NAME_MAX must be at least 5 bytes to hold "local". */ 194 #if (NX_MDNS_DOMAIN_NAME_MAX < 5) 195 #error "NX_MDNS_DOMAIN_NAME_MAX must be at least 5 bytes!" 196 #endif /* (NX_MDNS_DOMAIN_NAME_MAX < 5) */ 197 198 /* (NX_MDNS_HOST_NAME_MAX + "."(1) + NX_MDNS_DOMAIN_NAME_MAX) must be no more than NX_MDNS_NAME_MAX. */ 199 #if ((NX_MDNS_HOST_NAME_MAX + 1 + NX_MDNS_DOMAIN_NAME_MAX) > NX_MDNS_NAME_MAX) 200 #error "(NX_MDNS_HOST_NAME_MAX + 1 + NX_MDNS_DOMAIN_NAME_MAX) must be no more than NX_MDNS_NAME_MAX!" 201 #endif 202 203 /* Define the conflict count of service name or host name. */ 204 /* Note: the confilict count should be less than 8, since we just append " (x)" 205 between " (2)" and " (9)" during the conflict resolution process. */ 206 #ifndef NX_MDNS_CONFLICT_COUNT 207 #define NX_MDNS_CONFLICT_COUNT 8 208 #endif/* NX_MDNS_CONFLICT_COUNT */ 209 210 211 /* Define the DNS-SD buffer size for storing "_services._dns-sd._udp.local" */ 212 /* Note: the domain can be updated, so the max size should be NX_MDNS_DOMAIN_NAME_MAX + 23. 213 "_services._dns-sd._udp." (23) + NX_MDNS_DOMAIN_NAME_MAX. */ 214 #define NX_MDNS_DNS_SD_MAX (NX_MDNS_DOMAIN_NAME_MAX + 23) 215 216 217 /* Define mDNS Multicast Address. */ 218 #define NX_MDNS_IPV4_MULTICAST_ADDRESS (IP_ADDRESS(224,0,0,251)) 219 220 221 /* Define mDNS port. */ 222 #define NX_MDNS_UDP_PORT 5353 223 224 225 /* Define UDP socket create options. */ 226 #ifndef NX_MDNS_UDP_TYPE_OF_SERVICE 227 #define NX_MDNS_UDP_TYPE_OF_SERVICE NX_IP_NORMAL 228 #endif /* NX_MDNS_UDP_TYPE_OF_SERVICE */ 229 230 #ifndef NX_MDNS_UDP_FRAGMENT_OPTION 231 #define NX_MDNS_UDP_FRAGMENT_OPTION NX_DONT_FRAGMENT 232 #endif /* NX_MDNS_UDP_FRAGMENT_OPTION */ 233 234 #ifndef NX_MDNS_UDP_TIME_TO_LIVE 235 #define NX_MDNS_UDP_TIME_TO_LIVE 0xFF 236 #endif /* NX_MDNS_UDP_TIME_TO_LIVE */ 237 238 #ifndef NX_MDNS_UDP_QUEUE_DEPTH 239 #define NX_MDNS_UDP_QUEUE_DEPTH 4 240 #endif /* NX_MDNS_UDP_QUEUE_DEPTH */ 241 242 243 /* Define the resource record TTL. In second. */ 244 /* The recommended TTL value for Multicast DNS resource records with a host name as the resource record's name 245 (e.g., A, AAAA, HINFO) or a host name contaned within the resource record's rdata (e.g., SRV, reverse mapping PTR record) 246 should be 120 seconds. The recommended TTL value for other Multicast DNS resource records is 75 minutes. 247 RFC6762, Section10, Page33. */ 248 #ifndef NX_MDNS_RR_TTL_HOST 249 #define NX_MDNS_RR_TTL_HOST 120 250 #endif /* NX_MDNS_RR_TTL_HOST */ 251 252 #ifndef NX_MDNS_RR_TTL_OTHER 253 #define NX_MDNS_RR_TTL_OTHER 4500 /* 75 minutes. */ 254 #endif /* NX_MDNS_RR_TTL_OTHER */ 255 256 257 /* Define the mDNS's probing timer interval, default 250ms in spec. In tick. 258 should be: 250 * NX_IP_PERIODIC_RATE / 1000. */ 259 #ifndef NX_MDNS_PROBING_TIMER_COUNT 260 #define NX_MDNS_PROBING_TIMER_COUNT (250 * NX_IP_PERIODIC_RATE / 1000) 261 #endif /* NX_MDNS_PROBING_TIMER_COUNT */ 262 263 264 /* Define the mDNS's announcing timer interval, default 250ms in spec. In tick. 265 should be: 250 * NX_IP_PERIODIC_RATE / 1000. */ 266 #ifndef NX_MDNS_ANNOUNCING_TIMER_COUNT 267 #define NX_MDNS_ANNOUNCING_TIMER_COUNT (250 * NX_IP_PERIODIC_RATE / 1000) 268 #endif /* NX_MDNS_ANNOUNCING_TIMER_COUNT */ 269 270 271 /* Define the mDNS's goodbye timer interval, default 250ms in spec. In tick. 272 should be: 250 * NX_IP_PERIODIC_RATE / 1000. */ 273 #ifndef NX_MDNS_GOODBYE_TIMER_COUNT 274 #define NX_MDNS_GOODBYE_TIMER_COUNT (250 * NX_IP_PERIODIC_RATE / 1000) 275 #endif /* NX_MDNS_GOODBYE_TIMER_COUNT */ 276 277 278 /* Define the mDNS's min query timer interval between two queries, 1 second. In tick. */ 279 #ifndef NX_MDNS_QUERY_MIN_TIMER_COUNT 280 #define NX_MDNS_QUERY_MIN_TIMER_COUNT NX_IP_PERIODIC_RATE 281 #endif /* NX_MDNS_QUERY_MIN_TIMER_COUNT */ 282 283 284 /* Define the mDNS's max query timer interval between first two queries, 60 minutes. In tick. */ 285 #ifndef NX_MDNS_QUERY_MAX_TIMER_COUNT 286 #define NX_MDNS_QUERY_MAX_TIMER_COUNT (3600 * NX_IP_PERIODIC_RATE) 287 #endif /* NX_MDNS_QUERY_MAX_TIMER_COUNT */ 288 289 290 /* Define the mDNS's query delay timer interval, 20-120ms. In tick. */ 291 #ifndef NX_MDNS_QUERY_DELAY_MIN 292 #define NX_MDNS_QUERY_DELAY_MIN (20 * NX_IP_PERIODIC_RATE / 1000) 293 #endif /* NX_MDNS_QUERY_DELAY_MIN */ 294 295 #ifndef NX_MDNS_QUERY_DELAY_RANGE 296 #define NX_MDNS_QUERY_DELAY_RANGE (100 * NX_IP_PERIODIC_RATE / 1000) 297 #endif /* NX_MDNS_QUERY_DELAY_RANGE */ 298 299 300 /* Define the mDNS's response delay time interval for multicast query. */ 301 /* The time interval, in ticks, in responding to a query to ensure an interval of at least 1s 302 since the last time the record was multicast. The default value is NX_IP_PERIODIC_RATE ticks. */ 303 #ifndef NX_MDNS_RESPONSE_INTERVAL 304 #define NX_MDNS_RESPONSE_INTERVAL NX_IP_PERIODIC_RATE 305 #endif /* NX_MDNS_RESPONSE_INTERVAL */ 306 307 308 /* Define the mDNS's response delay time interval for probe message. */ 309 /* The time interval, in ticks, in responding to a probe queries to ensure an interval of 310 at least 250ms since the last time the record was multicast. The default value is (250 * NX_IP_PERIODIC_RATE / 1000) ticks. */ 311 #ifndef NX_MDNS_RESPONSE_PROBING_TIMER_COUNT 312 #define NX_MDNS_RESPONSE_PROBING_TIMER_COUNT (250 * NX_IP_PERIODIC_RATE / 1000) 313 #endif /* NX_MDNS_RESPONSE_PROBING_TIMER_COUNT */ 314 315 316 /* Define the mDNS's response delay time interval for unicast query, 10 ms. In tick. */ 317 #ifndef NX_MDNS_RESPONSE_UNIQUE_DELAY 318 #define NX_MDNS_RESPONSE_UNIQUE_DELAY (10 * NX_IP_PERIODIC_RATE / 1000) 319 #endif /* NX_MDNS_RESPONSE_UNIQUE_DELAY */ 320 321 322 /* Define the mDNS's response delay time interval for shared message, 20-120ms. In tick. */ 323 #ifndef NX_MDNS_RESPONSE_SHARED_DELAY_MIN 324 #define NX_MDNS_RESPONSE_SHARED_DELAY_MIN (20 * NX_IP_PERIODIC_RATE / 1000) 325 #endif /* NX_MDNS_RESPONSE_SHARED_DELAY_MIN */ 326 327 #ifndef NX_MDNS_RESPONSE_SHARED_DELAY_RANGE 328 #define NX_MDNS_RESPONSE_SHARED_DELAY_RANGE (100 * NX_IP_PERIODIC_RATE / 1000) 329 #endif /* NX_MDNS_RESPONSE_SHARED_DELAY_RANGE */ 330 331 332 /* Define the mDNS's response delay time interval for query with TC, 400-500 ms. In tick. */ 333 #ifndef NX_MDNS_RESPONSE_TC_DELAY_MIN 334 #define NX_MDNS_RESPONSE_TC_DELAY_MIN (400 * NX_IP_PERIODIC_RATE / 1000) 335 #endif /* NX_MDNS_RESPONSE_TC_DELAY_MIN */ 336 337 #ifndef NX_MDNS_RESPONSE_TC_DELAY_RANGE 338 #define NX_MDNS_RESPONSE_TC_DELAY_RANGE (100 * NX_IP_PERIODIC_RATE / 1000) 339 #endif /* NX_MDNS_RESPONSE_TC_DELAY_RANGE */ 340 341 342 /* Define the mDNS's random delay timer count, 120 ms. In tick. */ 343 /* This value allows a response to include messages that would be sent within 344 the next 120ms range. */ 345 #ifndef NX_MDNS_TIMER_COUNT_RANGE 346 #define NX_MDNS_TIMER_COUNT_RANGE (120 * NX_IP_PERIODIC_RATE / 1000) 347 #endif /* NX_MDNS_TIMER_COUNT_RANGE */ 348 349 350 /* Define the mDNS's probing retransmit count. The defaul value is 3. */ 351 #ifndef NX_MDNS_PROBING_RETRANSMIT_COUNT 352 #define NX_MDNS_PROBING_RETRANSMIT_COUNT 3 353 #endif /* NX_MDNS_PROBING_RETRANSMIT_COUNT */ 354 355 356 /* Define the mDNS's goodbye retransmit count. The defaul value is 1. */ 357 #ifndef NX_MDNS_GOODBYE_RETRANSMIT_COUNT 358 #define NX_MDNS_GOODBYE_RETRANSMIT_COUNT 1 359 #endif /* NX_MDNS_GOODBYE_RETRANSMIT_COUNT */ 360 361 362 /* Passive Observation Of Failures. 363 If a host sees queries, for which a record in its cache would be 364 expected to be given as an answer in a multicast response, but no 365 such answer is seen, then the host may take this as an indication 366 that the record may no longer be valid. 367 After seesing NX_MDNS_POOF_MIN_COUNT of these queries, and seeing 368 no multicast response containing the expected answer with in 369 NX_MDNS_POOF_TIMER_COUNT, delete the RR from the cache. 370 RFC6762, Section10.5, Page38. */ 371 372 /* Define the Passive Observation Of Failures min count. The defaul value is 2. */ 373 #ifndef NX_MDNS_POOF_MIN_COUNT 374 #define NX_MDNS_POOF_MIN_COUNT 2 375 #endif /* NX_MDNS_POOF_MIN_COUNT */ 376 377 /* Define the Passive Observation Of Failures timer count, 10 seconds in spec. In tick. */ 378 #ifndef NX_MDNS_POOF_TIMER_COUNT 379 #define NX_MDNS_POOF_TIMER_COUNT (10 * NX_IP_PERIODIC_RATE) 380 #endif /* NX_MDNS_POOF_TIMER_COUNT */ 381 382 383 /* Define the RR delete delay timer. */ 384 /* Queriers receiving a Multicast DNS response with a TTL of zero SHOULD 385 NOT immediately delete the record from the cache, but instead record 386 a TTL of 1 and then delete the record one second later. In tick. */ 387 #ifndef NX_MDNS_RR_DELETE_DELAY_TIMER_COUNT 388 #define NX_MDNS_RR_DELETE_DELAY_TIMER_COUNT NX_IP_PERIODIC_RATE 389 #endif /* NX_MDNS_RR_DELETE_DELAY_TIMER_COUNT */ 390 391 /* Define the maximum number of pointers allowed in name compression. */ 392 #ifndef NX_MDNS_MAX_COMPRESSION_POINTERS 393 #define NX_MDNS_MAX_COMPRESSION_POINTERS 16 394 #endif /* NX_MDNS_MAX_COMPRESSION_POINTERS */ 395 396 397 /* Define the default mDNS's announcing value. */ 398 #define NX_MDNS_ANNOUNCING_PERIOD NX_IP_PERIODIC_RATE 399 #define NX_MDNS_ANNOUNCING_COUNT 1 400 #define NX_MDNS_ANNOUNCING_FACTOR 1 401 #define NX_MDNS_ANNOUNCING_RETRANS_INTERVAL 0 402 #define NX_MDNS_ANNOUNCING_PERIOD_INTERVAL 0xFFFFFFFF 403 #define NX_MDNS_ANNOUNCING_MAX_TIME 3 404 #define NX_MDNS_ANNOUNCING_FOREVER 0xFF 405 406 407 /* Define the max ttl. In second. */ 408 #define NX_MDNS_RR_MAX_TTL 0xFFFFFFFF/NX_IP_PERIODIC_RATE 409 410 411 /* Define the RR update retransmit count. 412 The querier should plan to issure a query at 80%, 85%, 90%, 95% of the record lifetime. */ 413 #define NX_MDNS_RR_UPDATE_COUNT 4 414 415 416 /* Define the Address length. */ 417 #define NX_MDNS_IPV4_ADDRESS_LENGTH 4 418 #define NX_MDNS_IPV6_ADDRESS_LENGTH 16 419 420 421 /* Define mDNS event flags. */ 422 #define NX_MDNS_ALL_EVENTS ((ULONG) 0xFFFFFFFF) /* All event flags. */ 423 #define NX_MDNS_PKT_RX_EVENT ((ULONG) 0x00000001) /* Receive the mDNS packet. */ 424 #define NX_MDNS_QUERY_SEND_EVENT ((ULONG) 0x00000002) /* Send the mDNS Query packet. */ 425 #define NX_MDNS_RESPONSE_SEND_EVENT ((ULONG) 0x00000004) /* Send the mDNS Response packet. */ 426 #define NX_MDNS_PROBING_SEND_EVENT ((ULONG) 0x00000008) /* Send the mDNS Probing packet. */ 427 #define NX_MDNS_ANNOUNCING_SEND_EVENT ((ULONG) 0x00000010) /* Send the mDNS Announcing packet. */ 428 #define NX_MDNS_GOODBYE_SEND_EVENT ((ULONG) 0x00000020) /* Send the mDNS Goodbye packet. */ 429 #define NX_MDNS_TIMER_EVENT ((ULONG) 0x00000040) /* Process the mDNS timer event. */ 430 #define NX_MDNS_ADDRESS_CHANGE_EVENT ((ULONG) 0x00000080) /* Process the mDNS address change event. */ 431 #define NX_MDNS_RR_ELAPSED_TIMER_EVENT ((ULONG) 0x00000100) /* Process the mDNS rr elapsed tiemr event. */ 432 433 434 /* Define return code constants. */ 435 #define NX_MDNS_SUCCESS 0x00 /* mDNS Success. */ 436 #define NX_MDNS_ERROR 0xA1 /* mDNS internal error. */ 437 #define NX_MDNS_PARAM_ERROR 0xA2 /* mDNS parameters error. */ 438 #define NX_MDNS_CACHE_ERROR 0xA3 /* The Cache size is not enough. */ 439 #define NX_MDNS_UNSUPPORTED_TYPE 0xA4 /* The unsupported resource record type. */ 440 #define NX_MDNS_DATA_SIZE_ERROR 0xA5 /* The data size is too big. */ 441 #define NX_MDNS_AUTH_ERROR 0xA6 /* Attempting to parse too large a data. */ 442 #define NX_MDNS_PACKET_ERROR 0xA7 /* The packet can not add the resource record. */ 443 #define NX_MDNS_DEST_ADDRESS_ERROR 0xA9 /* The destination address error. */ 444 #define NX_MDNS_UDP_PORT_ERROR 0xB0 /* The udp port error. */ 445 #define NX_MDNS_NOT_LOCAL_LINK 0xB1 /* The message that not originate from the local link. */ 446 #define NX_MDNS_EXCEED_MAX_LABEL 0xB2 /* The data exceed the max laber size. */ 447 #define NX_MDNS_EXIST_UNIQUE_RR 0xB3 /* At least one Unqiue record in the cache. */ 448 #define NX_MDNS_EXIST_SHARED_RR 0xB4 /* At least one shared record in the cache. */ 449 #define NX_MDNS_EXIST_SAME_QUERY 0xB5 /* Exist the same query record in the cache. */ 450 #define NX_MDNS_EXIST_SAME_SERVICE 0xB6 /* Exist the same service. */ 451 #define NX_MDNS_NO_RR 0xB7 /* No response for one-shot query. */ 452 #define NX_MDNS_NO_KNOWN_ANSWER 0xB8 /* No known answer for query. */ 453 #define NX_MDNS_NAME_MISMATCH 0xB9 /* The name mismatch. */ 454 #define NX_MDNS_NOT_STARTED 0xC0 /* mDNS does not start. */ 455 #define NX_MDNS_HOST_NAME_ERROR 0xC1 /* mDNS host name error. */ 456 #define NX_MDNS_NO_MORE_ENTRIES 0xC2 /* No more entries be found. */ 457 #define NX_MDNS_SERVICE_TYPE_MISMATCH 0xC3 /* The service type mismatch */ 458 #define NX_MDNS_NOT_ENABLED 0xC4 /* mDNS does not enable. */ 459 #define NX_MDNS_ALREADY_ENABLED 0xC5 /* mDNS already enabled. */ 460 461 462 /* Define the local host/service register notify state. */ 463 #define NX_MDNS_LOCAL_HOST_REGISTERED_SUCCESS 1 /* mDNS Server: Local host registered success. */ 464 #define NX_MDNS_LOCAL_HOST_REGISTERED_FAILURE 2 /* mDNS Server: Local host registered failure. */ 465 #define NX_MDNS_LOCAL_SERVICE_REGISTERED_SUCCESS 3 /* mDNS Server: Local service registered success. */ 466 #define NX_MDNS_LOCAL_SERVICE_REGISTERED_FAILURE 4 /* mDNS Server: Local service registered failure. */ 467 468 /* Define the peer service change notify state. */ 469 #define NX_MDNS_PEER_SERVICE_RECEIVED 1 /* mDNS Client: Peer service received. */ 470 #define NX_MDNS_PEER_SERVICE_DELETED 2 /* mDNS Client: Peer service deleted. */ 471 #define NX_MDNS_PEER_SERVICE_UPDATED 3 /* mDNS Client: Peer service address updated. */ 472 473 /* Define the cache notify state. */ 474 #define NX_MDNS_CACHE_STATE_FULL 1 /* mDNS Cache is full, and cannot fill the RR. */ 475 #define NX_MDNS_CACHE_STATE_FRAGMENTED 2 /* mDNS Cache is fragmented, and cannot fill the RR. */ 476 477 /* Define cache type. */ 478 #define NX_MDNS_CACHE_TYPE_LOCAL 0 /* Local cache. */ 479 #define NX_MDNS_CACHE_TYPE_PEER 1 /* Peer cache. */ 480 481 482 /* Define offsets into the DNS message buffer. */ 483 #define NX_MDNS_ID_OFFSET 0 /* Offset to ID code in DNS buffer */ 484 #define NX_MDNS_FLAGS_OFFSET 2 /* Offset to flags in DNS buffer */ 485 #define NX_MDNS_QDCOUNT_OFFSET 4 /* Offset to Question Count in DNS buffer */ 486 #define NX_MDNS_ANCOUNT_OFFSET 6 /* Offset to Answer Count in DNS buffer */ 487 #define NX_MDNS_NSCOUNT_OFFSET 8 /* Offset to Authority Count in DNS buffer */ 488 #define NX_MDNS_ARCOUNT_OFFSET 10 /* Offset to Additional Info. Count in DNS buffer */ 489 #define NX_MDNS_QDSECT_OFFSET 12 /* Offset to Question Section in DNS buffer */ 490 491 492 /* Define constants for the flags word. */ 493 #define NX_MDNS_QUERY_MASK 0x0000 494 #define NX_MDNS_QUERY_FLAG 0x0000 495 #define NX_MDNS_RESPONSE_FLAG 0x8000 496 #define NX_MDNS_ERROR_MASK 0x000F 497 #define NX_MDNS_TOP_BIT_MASK 0x7FFF 498 499 #define NX_MDNS_OPCODE_QUERY (0 << 12) /* Shifted right 12 is still 0 */ 500 #define NX_MDNS_OPCODE_IQUERY (1 << 12) /* 1 shifted right by 12 */ 501 #define NX_MDNS_OPCODE_STATUS (2 << 12) /* 2 shifted right by 12 */ 502 503 #define NX_MDNS_AA_FLAG 0x0400 /* Authoritative Answer */ 504 #define NX_MDNS_TC_FLAG 0x0200 /* Truncated */ 505 #define NX_MDNS_RD_FLAG 0x0100 /* Recursive Query */ 506 #define NX_MDNS_RA_FLAG 0x0080 /* Recursion Available */ 507 #define NX_MDNS_FA_FLAG 0x0010 /* Force Authentication */ 508 509 /* Define name compression masks. */ 510 #define NX_MDNS_COMPRESS_MASK 0xc0 511 #define NX_MDNS_COMPRESS_VALUE 0xc0 512 #define NX_MDNS_POINTER_MASK 0xc000 513 514 /* Define resource record types. */ 515 #define NX_MDNS_RR_TYPE_A 1 /* Host address */ 516 #define NX_MDNS_RR_TYPE_NS 2 /* Authoritative name server */ 517 #define NX_MDNS_RR_TYPE_MD 3 /* Mail destination (Obsolete - use MX) */ 518 #define NX_MDNS_RR_TYPE_MF 4 /* Mail forwarder (Obsolete - use MX) */ 519 #define NX_MDNS_RR_TYPE_CNAME 5 /* Canonical name for an alias */ 520 #define NX_MDNS_RR_TYPE_SOA 6 /* Marks the start of a zone of authority */ 521 #define NX_MDNS_RR_TYPE_MB 7 /* Mailbox domain name (EXPERIMENTAL) */ 522 #define NX_MDNS_RR_TYPE_MG 8 /* Mail group member (EXPERIMENTAL) */ 523 #define NX_MDNS_RR_TYPE_MR 9 /* Mail rename domain name (EXPERIMENTAL) */ 524 #define NX_MDNS_RR_TYPE_NULL 10 /* Null RR (EXPERIMENTAL) */ 525 #define NX_MDNS_RR_TYPE_WKS 11 /* Well known service description */ 526 #define NX_MDNS_RR_TYPE_PTR 12 /* Domain name pointer */ 527 #define NX_MDNS_RR_TYPE_HINFO 13 /* Host information */ 528 #define NX_MDNS_RR_TYPE_MINFO 14 /* Mailbox or mail list information */ 529 #define NX_MDNS_RR_TYPE_MX 15 /* Mail exchange */ 530 #define NX_MDNS_RR_TYPE_TXT 16 /* Text strings */ 531 #define NX_MDNS_RR_TYPE_AAAA 28 /* IPv6 Host address */ 532 #define NX_MDNS_RR_TYPE_SRV 33 /* The location of services */ 533 #define NX_MDNS_RR_TYPE_NSEC 47 /* The type of NSEC RR. */ 534 535 536 /* Define constants for Qtypes (queries). */ 537 #define NX_MDNS_RR_TYPE_AXFR 252 /* Request for a transfer of an entire zone */ 538 #define NX_MDNS_RR_TYPE_MAILB 253 /* Request for mailbox-related records (MB, MG or MR) */ 539 #define NX_MDNS_RR_TYPE_MAILA 254 /* Request for mail agent RRs (Obsolete - see MX) */ 540 #define NX_MDNS_RR_TYPE_ALL 255 /* Request for all records */ 541 542 543 /* Define resource record classes. */ 544 #define NX_MDNS_RR_CLASS_IN 1 /* Internet */ 545 #define NX_MDNS_RR_CLASS_CS 2 /* CSNET class (Obsolete) */ 546 #define NX_MDNS_RR_CLASS_CH 3 /* CHAOS class */ 547 #define NX_MDNS_RR_CLASS_HS 4 /* Hesiod [Dyer 87] */ 548 #define NX_MDNS_RR_CLASS_ALL 255 /* Any class */ 549 #define NX_MDNS_RR_CLASS_TOP_BIT 0x8000 /* The top bit of class. */ 550 551 552 /* Define the resource record state value. */ 553 #define NX_MDNS_RR_STATE_INVALID 0 /* Invalid resource records. */ 554 #define NX_MDNS_RR_STATE_PROBING 1 /* mDNS Server probing the resource records. */ 555 #define NX_MDNS_RR_STATE_ANNOUNCING 2 /* mDNS Server announcing the resource records. */ 556 #define NX_MDNS_RR_STATE_GOODBYE 3 /* mDNS Server send the Goodbye. */ 557 #define NX_MDNS_RR_STATE_SUSPEND 4 /* mDNS Server suspend the resource record. */ 558 #define NX_MDNS_RR_STATE_QUERY 5 /* mDNS Client send the initial query. */ 559 #define NX_MDNS_RR_STATE_UPDATING 6 /* mDNS Client send the query to update the RR. */ 560 #define NX_MDNS_RR_STATE_DELETE 7 /* mDNS Client delete the resource records. */ 561 #define NX_MDNS_RR_STATE_POOF_DELETE 8 /* mDNS Client delete the resource records by Passive Observation Of Failures.*/ 562 #define NX_MDNS_RR_STATE_VALID 9 /* Valid resource records. */ 563 564 565 /* Define the sending type of resource records. */ 566 #define NX_MDNS_RR_SEND_FLAG_CLEAR 0x00 /* Response should not send the Resource records. */ 567 #define NX_MDNS_RR_SEND_MULTICAST 0x01 /* Send the Resource records via multicast. */ 568 #define NX_MDNS_RR_SEND_UNICAST 0x02 /* Send the Resource records via unicast. */ 569 #define NX_MDNS_RR_SEND_FLAG_MASK 0xF0 /* The mask of send flag. */ 570 571 572 /* Define resource record owner. */ 573 #define NX_MDNS_RR_OWNER_LOCAL 0 /* Local Resource records. */ 574 #define NX_MDNS_RR_OWNER_REMOTE 1 /* Remote Resource records. */ 575 576 577 /* Define resource record set. */ 578 #define NX_MDNS_RR_SET_SHARED 0 /* Shared Resource records. */ 579 #define NX_MDNS_RR_SET_UNIQUE 1 /* Unique Resource records. */ 580 581 582 /* Define the resource record state mask. */ 583 #define NX_MDNS_RR_FLAG_PEER 0x0001 /* RR owner flag. */ 584 #define NX_MDNS_RR_FLAG_UNIQUE 0x0002 /* RR set flag. */ 585 #define NX_MDNS_RR_FLAG_CONTINUOUS_QUERY 0x0004 /* RR query type flag. */ 586 #define NX_MDNS_RR_FLAG_DUPLICATE_QUERY 0x0008 /* RR duplicate query flag. */ 587 #define NX_MDNS_RR_FLAG_ADDITIONAL 0x0010 /* RR additional flag. */ 588 #define NX_MDNS_RR_FLAG_UPDATING 0x0020 /* RR updating flag. */ 589 #define NX_MDNS_RR_FLAG_DELETE 0x0040 /* RR delete flag. */ 590 #define NX_MDNS_RR_FLAG_ANSWER 0x0080 /* RR answer flag. */ 591 #define NX_MDNS_RR_FLAG_KNOWN_ANSWER 0x0100 /* RR known answer flag. */ 592 #define NX_MDNS_RR_FLAG_AUTHORIY_ANSWER 0x0200 /* RR authority answer flag. */ 593 594 595 /* Define the type to search the same resource record. */ 596 #define NX_MDNS_RR_MATCH_ALL 1 /* Match all data: name, type, class, rdata. */ 597 #define NX_MDNS_RR_MATCH_EXCEPT_RDATA 2 /* Match the name, type, class, except rdata. */ 598 599 600 /* Define the type to set/add the resource record in cache from packet. */ 601 #define NX_MDNS_RR_OP_LOCAL_SET_QUESTION 0 /* Set resource record question in local cache. */ 602 #define NX_MDNS_RR_OP_LOCAL_SET_ANSWER 1 /* Set resource record answer in local cache. */ 603 #define NX_MDNS_RR_OP_PEER_SET_QUESTION 2 /* Set resource record question in peer cache. */ 604 #define NX_MDNS_RR_OP_PEER_ADD_ANSWER 3 /* Add resource record answer in peer cache. */ 605 606 607 /* Define the type for adding question/answer RR into the packet. */ 608 #define NX_MDNS_PACKET_ADD_RR_QUESTION 1 /* Add the question resource record into packet. */ 609 #define NX_MDNS_PACKET_ADD_RR_ANSWER 2 /* Add the answer resource record into packet. */ 610 611 612 /* Define mDNS packet type. */ 613 #define NX_MDNS_PACKET_QUERY 1 /* Query packet. */ 614 #define NX_MDNS_PACKET_PROBING 2 /* Probing packet. Is specific query. */ 615 #define NX_MDNS_PACKET_RESPONSE 3 /* Response packet. */ 616 617 618 /* Define the Add NSEC type. */ 619 #define NX_MDNS_ADD_NSEC_FOR_HOST 0 /* Add the NSEC for host name. */ 620 #define NX_MDNS_ADD_NSEC_FOR_SERVICE 1 /* Add the NSEC for service. */ 621 622 623 /* Define the RDATA structure. */ 624 625 /* A RDATA format 626 0 1 627 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 628 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 629 | ADDRESS | 630 | | 631 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 632 */ 633 634 typedef struct NX_MDNS_RR_A_STRUCT 635 { 636 ULONG nx_mdns_rr_a_address; 637 } NX_MDNS_RR_A; 638 639 640 /* NS RDATA format 641 0 1 642 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 643 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 644 / NSDNAME / 645 / / 646 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 647 */ 648 649 typedef struct NX_MDNS_RR_NS_STRUCT 650 { 651 UCHAR* nx_mdns_rr_ns_name; 652 } NX_MDNS_RR_NS; 653 654 /* MD RDATA format 655 0 1 656 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 657 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 658 / MADNAME / 659 / / 660 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 661 */ 662 663 typedef struct NX_MDNS_RR_MD_STRUCT 664 { 665 UCHAR* nx_mdns_rr_md_name; 666 } NX_MDNS_RR_MD; 667 668 /* MF RDATA format 669 0 1 670 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 671 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 672 / MADNAME / 673 / / 674 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 675 */ 676 677 typedef struct NX_MDNS_RR_MF_STRUCT 678 { 679 UCHAR* nx_mdns_rr_mf_name; 680 } NX_MDNS_RR_MF; 681 682 /* CNMAE RDATA format 683 0 1 684 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 685 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 686 / CNAME / 687 / / 688 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 689 */ 690 691 typedef struct NX_MDNS_RR_CNAME_STRUCT 692 { 693 UCHAR* nx_mdns_rr_cname_name; 694 } NX_MDNS_RR_CNAME; 695 696 /* SOA RDATA format 697 0 1 698 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 699 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 700 / MNAME / 701 / / 702 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 703 / RNAME / 704 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 705 | SERIAL | 706 | | 707 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 708 | REFRESH | 709 | | 710 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 711 | RETRY | 712 | | 713 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 714 | EXPIRE | 715 | | 716 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 717 | MINMUM | 718 | | 719 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 720 */ 721 722 typedef struct NX_MDNS_RR_SOA_STRUCT 723 { 724 UCHAR* nx_mdns_rr_soa_mname; 725 UCHAR* nx_mdns_rr_soa_rname; 726 ULONG nx_mdns_rr_soa_serial; 727 ULONG nx_mdns_rr_soa_refresh; 728 ULONG nx_mdns_rr_soa_retry; 729 ULONG nx_mdns_rr_soa_expire; 730 ULONG nx_mdns_rr_soa_minmum; 731 } NX_MDNS_RR_SOA; 732 733 /* MB RDATA format 734 0 1 735 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 736 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 737 / MADNAME / 738 / / 739 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 740 */ 741 742 typedef struct NX_MDNS_RR_MB_STRUCT 743 { 744 UCHAR* nx_mdns_rr_mb_name; 745 } NX_MDNS_RR_MB; 746 747 /* MG RDATA format 748 0 1 749 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 750 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 751 / MGMNAME / 752 / / 753 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 754 */ 755 756 typedef struct NX_MDNS_RR_MG_STRUCT 757 { 758 UCHAR* nx_mdns_rr_mg_name; 759 } NX_MDNS_RR_MG; 760 761 /* MR RDATA format 762 0 1 763 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 764 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 765 / NEWNAME / 766 / / 767 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 768 */ 769 770 typedef struct NX_MDNS_RR_MR_STRUCT 771 { 772 UCHAR* nx_mdns_rr_mr_name; 773 } NX_MDNS_RR_MR; 774 775 /* NULL RDATA format 776 0 1 777 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 778 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 779 / <anything> / 780 / / 781 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 782 */ 783 784 typedef struct NX_MDNS_RR_NULL_STRUCT 785 { 786 UCHAR* nx_mdns_rr_null_ptr; 787 } NX_MDNS_RR_NULL; 788 789 /* WKS RDATA format 790 0 1 791 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 792 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 793 | ADDRESS | 794 | | 795 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 796 | PROTOCOL | | 797 |--+--+--+--+--+--+--+--+ | 798 / <BIT MAP> / 799 / / 800 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 801 */ 802 803 typedef struct NX_MDNS_RR_WKS_STRUCT 804 { 805 ULONG nx_mdns_rr_wks_address; 806 UCHAR nx_mdns_rr_wks_protocol; 807 UCHAR nx_mdns_rr_wks_reserved[3]; 808 UCHAR* nx_mdns_rr_wks_bit_map; 809 } NX_MDNS_RR_WKS; 810 811 /* PTR RDATA format 812 0 1 813 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 814 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 815 / PTRDNAME / 816 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 817 */ 818 819 typedef struct NX_MDNS_RR_PTR_STRUCT 820 { 821 UCHAR* nx_mdns_rr_ptr_name; 822 } NX_MDNS_RR_PTR; 823 824 /* HINFO RDATA format 825 0 1 826 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 827 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 828 / CPU / 829 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 830 / OS / 831 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 832 */ 833 834 typedef struct NX_MDNS_RR_HINFO_STRUCT 835 { 836 UCHAR* nx_mdns_rr_hinfo_cpu; 837 UCHAR* nx_mdns_rr_hinfo_os; 838 } NX_MDNS_RR_HINFO; 839 840 /* MINFO RDATA format 841 0 1 842 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 843 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 844 / RMAILBX / 845 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 846 / EMAILBX / 847 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 848 */ 849 850 typedef struct NX_MDNS_RR_MINFO_STRUCT 851 { 852 UCHAR* nx_mdns_rr_minfo_cpu; 853 UCHAR* nx_mdns_rr_minfo_os; 854 } NX_MDNS_RR_MINFO; 855 856 /* MX RDATA format 857 0 1 858 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 859 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 860 | PREFERENCE | 861 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 862 / NEWNAME / 863 / / 864 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 865 */ 866 867 typedef struct NX_MDNS_RR_MX_STRUCT 868 { 869 UCHAR* nx_mdns_rr_mx_name; 870 USHORT nx_mdns_rr_mx_preference; 871 USHORT nx_mdns_rr_mx_reserved; 872 } NX_MDNS_RR_MX; 873 874 /* TXT RDATA format 875 0 1 876 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 877 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 878 / TXT-DATA / 879 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 880 */ 881 882 typedef struct NX_MDNS_RR_TXT_STRUCT 883 { 884 UCHAR* nx_mdns_rr_txt_data; 885 } NX_MDNS_RR_TXT; 886 887 /* AAAA RDATA format 888 0 1 889 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 890 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 891 | | 892 | | 893 | | 894 | IPv6 ADDRESS | 895 | | 896 | | 897 | | 898 | | 899 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 900 */ 901 902 typedef struct NX_MDNS_RR_AAAA_STRUCT 903 { 904 ULONG nx_mdns_rr_aaaa_address[4]; 905 } NX_MDNS_RR_AAAA; 906 907 /* SRV RDATA format 908 0 1 909 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 910 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 911 | PRIORITY | 912 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 913 | WEIGHTS | 914 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 915 | PORT | 916 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 917 / TARGET / 918 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 919 */ 920 921 typedef struct NX_MDNS_RR_SRV_STRUCT 922 { 923 UCHAR* nx_mdns_rr_srv_target; 924 USHORT nx_mdns_rr_srv_priority; 925 USHORT nx_mdns_rr_srv_weights; 926 USHORT nx_mdns_rr_srv_port; 927 USHORT nx_mdns_rr_srv_reserved; 928 } NX_MDNS_RR_SRV; 929 930 931 /* NSEC RDATA format 932 0 1 933 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 934 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 935 / Next Domain Name / 936 / / 937 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 938 / Type Bit Maps / 939 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 940 */ 941 942 typedef struct NX_MDNS_RR_NSEC_STRUCT 943 { 944 UCHAR* nx_mdns_rr_nsec_next_domain; 945 UCHAR nx_mdns_rr_nsec_window_block; 946 UCHAR nx_mdns_rr_nsec_bitmap_length; 947 UCHAR nx_mdns_rr_nsec_bitmap[5]; /* Can match the max rr type 6 * 7 = 42. */ 948 UCHAR nx_mdns_rr_nsec_additional_send; /* 0 indicate answer, 1 indicate additional. */ 949 } NX_MDNS_RR_NSEC; 950 951 952 /* RR definitions. RFC1035. */ 953 /* RR Format. 954 0 1 955 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 956 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 957 | | 958 / NAME / 959 / / 960 | | 961 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 962 | TYPE | 963 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 964 | CLASS | 965 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 966 | TTL | 967 | | 968 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 969 | RDLENGTH | 970 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 971 / RDATA / 972 / / 973 |--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| 974 */ 975 976 /* The following data structure is used to store the resource records(RRs). */ 977 typedef struct NX_MDNS_RR_STRUCT 978 { 979 980 UCHAR* nx_mdns_rr_name; /* Owner's name,i.e., the name of the node to 981 which this resource record pertains. */ 982 983 USHORT nx_mdns_rr_type; /* RR TYPE. */ 984 985 USHORT nx_mdns_rr_class; /* RR CLASS. */ 986 987 ULONG nx_mdns_rr_ttl; /* The time interval that the RR may be cached before the source of 988 the information should again be consulted. */ 989 990 USHORT nx_mdns_rr_rdata_length; /* The length of rdata. nx_mdns_rr_rdata */ 991 992 UCHAR nx_mdns_rr_state; /* The resource records state, Probing, Annoncing, Valid. */ 993 994 UCHAR nx_mdns_rr_retransmit_count; /* Define the count for the retransmit the RR. */ 995 996 ULONG nx_mdns_rr_retransmit_lifetime; /* Define the lifetime for retransmit the RR. */ 997 998 ULONG nx_mdns_rr_timer_count; /* Define the timer count for the retransmit the RR. */ 999 1000 ULONG nx_mdns_rr_elapsed_time; /* Define the time elasped for the peer RR. */ 1001 1002 ULONG nx_mdns_rr_remaining_ticks; /* Define the remaining ticks of the peer RR. */ 1003 1004 ULONG nx_mdns_rr_response_interval; /* Define the time interval for two responses. Local RR. */ 1005 1006 UCHAR nx_mdns_rr_interface_index; /* RR interface index. */ 1007 1008 UCHAR nx_mdns_rr_announcing_max_time; /* RR announcing max time. Local RR. */ 1009 1010 UCHAR nx_mdns_rr_conflict_count; /* The conflict count of service name or host name. Local RR. */ 1011 1012 UCHAR nx_mdns_rr_poof_count; /* The Passive Observation Of Failures count of resource record. Peer RR.*/ 1013 1014 UCHAR nx_mdns_rr_count; /* The count of same _services._dns-sd._udp.local PTR resource reocrd. */ 1015 1016 UCHAR nx_mdns_rr_send_flag; /* The flag for seding resource record. */ 1017 1018 USHORT nx_mdns_rr_word; 1019 1020 /* Define the state, owner, flag, set of the resource records. This word contains 1021 the following information: 1022 1023 bits 0 RR Owner, the owner of resource record, 1024 0 indicates local RR, 1 indicates peer RR. 1025 bits 1 RR Set, the set of resource record, 1026 0 indicates shared RR, 1 indicates unique RR. 1027 bits 2 RR query type, the query type of resource record, 1028 0 indicates query the RR use One-shot method, 1 indicates query the RR use Continuous method. 1029 bits 3 RR additional flag, send this resource record as the additional RR. 1030 bits 4 RR query duplicate flag, this resource record is the duplicate quesiton. 1031 bits 5 RR updating flag, this resource record need to be maintenance. 1032 bits 6 RR delete flag, this resource record need to be deleted. 1033 bits 7 RR answer flag, this resource record has been added in answer section. 1034 bits 8 RR known answer flag, send this resource record as the known answer. 1035 bits 9 RR authority answer flag, send this resource record as the authority answer. 1036 */ 1037 1038 /* Union that holds resource record data. */ 1039 union nx_mdns_rr_rdata_union 1040 { 1041 NX_MDNS_RR_A nx_mdns_rr_rdata_a; 1042 NX_MDNS_RR_AAAA nx_mdns_rr_rdata_aaaa; 1043 NX_MDNS_RR_PTR nx_mdns_rr_rdata_ptr; 1044 NX_MDNS_RR_SRV nx_mdns_rr_rdata_srv; 1045 NX_MDNS_RR_TXT nx_mdns_rr_rdata_txt; 1046 1047 #ifdef NX_MDNS_ENABLE_SERVER_NEGATIVE_RESPONSES 1048 NX_MDNS_RR_NSEC nx_mdns_rr_rdata_nsec; 1049 #endif /* NX_MDNS_ENABLE_SERVER_NEGATIVE_RESPONSES */ 1050 1051 #ifdef NX_MDNS_ENABLE_EXTENDED_RR_TYPES 1052 NX_MDNS_RR_CNAME nx_mdns_rr_rdata_cname; 1053 NX_MDNS_RR_NS nx_mdns_rr_rdata_ns; 1054 NX_MDNS_RR_MX nx_mdns_rr_rdata_mx; 1055 #endif /* NX_MDNS_ENABLE_EXTENDED_RR_TYPES */ 1056 } nx_mdns_rr_rdata; 1057 1058 }NX_MDNS_RR; 1059 1060 /* Buffer usage. */ 1061 /* 1062 1063 |-----------+-----------+-----------+-----------+-----------+------------+-----------+------------+------------| 1064 | HEAD |NX_MDNS_RR |NX_MDNS_RR | ..........| STRING | CNT | LEN | STRING | CNT | LEN | TAIL | 1065 |-----------+-----------+-----------+-----------+-----------+------------+-----------+------------+------------| 1066 1067 HEAD: First unused memory at the front of cache. The size is 4 bytes. 1068 NX_MDNS_RR: The Resource Record struct, the size is sizeof(NX_MDNS_RR). 1069 TAIL: It points to the last used memory at the back of cache. Its size is 4 bytes. 1070 LEN: It is the length of STRING, plus the CNT and LEN fields. This field takes 2 bytes. 1071 CNT: It is the reference count of STRING. It takes 2 bytes. 1072 STRING: The content of name string and rdata string, must be null-terminated. Padded with 0s to be 4 byte aligned. 1073 */ 1074 1075 1076 /* Define the Service structure. */ 1077 typedef struct NX_MDNS_SERVICE_STRUCT 1078 { 1079 1080 UCHAR* service_name; /* Service instance. */ 1081 1082 UCHAR* service_type; /* Service type. */ 1083 1084 UCHAR* service_domain; /* Service domain. */ 1085 1086 UCHAR service_text[NX_MDNS_NAME_MAX+1]; /* Service txt information. */ 1087 1088 UCHAR service_host[NX_MDNS_HOST_NAME_MAX + 1]; /* The target host of the service. */ 1089 1090 USHORT service_port; /* Service port. */ 1091 1092 USHORT service_weight; /* Service weight. */ 1093 1094 USHORT service_priority; /* Service priority. */ 1095 1096 UCHAR interface_index; /* Service interface idnex. */ 1097 1098 UCHAR service_text_valid; /* Flag indicating text fields are valid. */ 1099 1100 ULONG service_ipv4; /* The IPv4 address for service. */ 1101 1102 ULONG service_ipv6[NX_MDNS_IPV6_ADDRESS_COUNT][4]; /* The IPv6 address for service.*/ 1103 1104 UCHAR buffer[NX_MDNS_NAME_MAX+1]; /* The buffer for service instance, type and domain.*/ 1105 1106 } NX_MDNS_SERVICE; 1107 1108 1109 /* Define the basic Multicast DNS data structure. */ 1110 1111 typedef struct NX_MDNS_STRUCT 1112 { 1113 ULONG nx_mdns_id; /* Multicast DNS ID. */ 1114 1115 NX_IP* nx_mdns_ip_ptr; /* Pointer to associated IP structure. */ 1116 1117 NX_UDP_SOCKET nx_mdns_socket; /* Multicast DNS Socket. */ 1118 1119 TX_MUTEX nx_mdns_mutex; /* Multicast DNS Mutex. */ 1120 1121 TX_TIMER nx_mdns_timer; /* Multicast DNS TIMER. */ 1122 1123 TX_THREAD nx_mdns_thread; /* Multicast DNS processing thread. */ 1124 1125 TX_EVENT_FLAGS_GROUP nx_mdns_events; /* Multicast DNS event. */ 1126 1127 NX_PACKET_POOL* nx_mdns_packet_pool_ptr; /* Pointer to the packet pool. */ 1128 1129 UCHAR nx_mdns_host_name[NX_MDNS_HOST_NAME_MAX]; /* The Embedded Device name supplied at create. */ 1130 1131 UCHAR nx_mdns_domain_name[NX_MDNS_DOMAIN_NAME_MAX + 1]; /* The mDNS domain name. */ 1132 1133 UINT nx_mdns_interface_enabled[NX_MAX_PHYSICAL_INTERFACES]; /* Interface enable status. */ 1134 1135 #ifdef NX_MDNS_ENABLE_IPV6 1136 UINT nx_mdns_ipv6_address_index[NX_MAX_PHYSICAL_INTERFACES]; /* IPv6 link local address index. */ 1137 #endif /* NX_MDNS_ENABLE_IPV6 */ 1138 1139 /* Define the UDP receive suspension list head associated with a count of 1140 how many threads are suspended attempting to receive from the same TCP port. */ 1141 TX_THREAD* nx_mdns_rr_receive_suspension_list; /* The suspended thread. */ 1142 1143 ULONG nx_mdns_rr_receive_suspended_count; /* The suspended count. */ 1144 1145 UCHAR* nx_mdns_local_service_cache; /* Pointer to the cache. */ 1146 1147 UINT nx_mdns_local_service_cache_size; /* The size of cache. */ 1148 1149 UCHAR* nx_mdns_peer_service_cache; /* Pointer to the cache. */ 1150 1151 UINT nx_mdns_peer_service_cache_size; /* The size of cache. */ 1152 1153 ULONG nx_mdns_service_ignore_mask; /* The mask specifying services types to be ignored. */ 1154 1155 ULONG nx_mdns_service_notify_mask; /* The service mask for listen the service and notify the applicaiton. */ 1156 1157 ULONG nx_mdns_timer_min_count; /* The minimum timer count indicate the intervals between last timer event and next timer event. */ 1158 1159 USHORT nx_mdns_announcing_period; /* Number of ticks for the initial period. Default value is 1 second. */ 1160 1161 USHORT nx_mdns_announcing_retrans_interval; /* Number of ticks to wait ticks before sending out repeated announcement message. */ 1162 1163 ULONG nx_mdns_announcing_period_interval; /* Number of ticks between two announcing period. */ 1164 1165 UCHAR nx_mdns_announcing_count; /* Number of repetitions between one announcing period. Default value is 1. */ 1166 1167 UCHAR nx_mdns_announcing_factor; /* Telescopic factor, default value is 0. 2^k. */ 1168 1169 UCHAR nx_mdns_announcing_max_time; /* Max time of Announcing period, default value is 3. */ 1170 1171 UCHAR nx_mdns_started; /* mDNS task has been started. */ 1172 1173 ULONG nx_mdns_local_rr_count; /* The number of resource records in the local cache. */ 1174 1175 ULONG nx_mdns_local_string_count; /* The number of strings in the local cache. */ 1176 1177 ULONG nx_mdns_local_string_bytes; /* The number of total bytes in string table in the local cache. */ 1178 1179 ULONG nx_mdns_peer_rr_count; /* The number of resource records in the peer cache. */ 1180 1181 ULONG nx_mdns_peer_string_count; /* The number of strings in the peer cache. */ 1182 1183 ULONG nx_mdns_peer_string_bytes; /* The number of total bytes in string table in the peer cache. */ 1184 1185 ULONG nx_mdns_first_probing_delay; /* The delay of first probing for unique RR. */ 1186 1187 VOID (*nx_mdns_probing_notify)(struct NX_MDNS_STRUCT *, UCHAR *, UINT); 1188 1189 VOID (*nx_mdns_service_change_notify)(struct NX_MDNS_STRUCT *, struct NX_MDNS_SERVICE_STRUCT *, UINT); 1190 1191 VOID (*nx_mdns_cache_full_notify)(struct NX_MDNS_STRUCT *, UINT, UINT); 1192 1193 } NX_MDNS; 1194 1195 1196 #ifndef NX_MDNS_SOURCE_CODE 1197 1198 /* Application caller is present, perform API mapping. */ 1199 1200 /* Determine if error checking is desired. If so, map mDNS API functions 1201 to the appropriate error checking front-ends. Otherwise, map API 1202 functions to the core functions that actually perform the work. 1203 Note: error checking is enabled by default. */ 1204 1205 #ifdef NX_DISABLE_ERROR_CHECKING 1206 1207 /* Services without error checking. */ 1208 1209 #define nx_mdns_create _nx_mdns_create 1210 #define nx_mdns_delete _nx_mdns_delete 1211 #define nx_mdns_enable _nx_mdns_enable 1212 #define nx_mdns_disable _nx_mdns_disable 1213 #define nx_mdns_cache_notify_set _nx_mdns_cache_notify_set 1214 #define nx_mdns_cache_notify_clear _nx_mdns_cache_notify_clear 1215 #define nx_mdns_domain_name_set _nx_mdns_domain_name_set 1216 1217 #ifndef NX_MDNS_DISABLE_SERVER 1218 #define nx_mdns_service_announcement_timing_set _nx_mdns_service_announcement_timing_set 1219 #define nx_mdns_service_add _nx_mdns_service_add 1220 #define nx_mdns_service_delete _nx_mdns_service_delete 1221 #define nx_mdns_local_cache_clear _nx_mdns_local_cache_clear 1222 #endif /* NX_MDNS_DISABLE_SERVER */ 1223 1224 #ifndef NX_MDNS_DISABLE_CLIENT 1225 #define nx_mdns_service_one_shot_query _nx_mdns_service_one_shot_query 1226 #define nx_mdns_service_continuous_query _nx_mdns_service_continuous_query 1227 #define nx_mdns_service_query_stop _nx_mdns_service_query_stop 1228 #define nx_mdns_service_lookup _nx_mdns_service_lookup 1229 #define nx_mdns_service_ignore_set _nx_mdns_service_ignore_set 1230 #define nx_mdns_service_notify_set _nx_mdns_service_notify_set 1231 #define nx_mdns_service_notify_clear _nx_mdns_service_notify_clear 1232 #define nx_mdns_host_address_get _nx_mdns_host_address_get 1233 #define nx_mdns_peer_cache_clear _nx_mdns_peer_cache_clear 1234 #endif /* NX_MDNS_DISABLE_CLIENT */ 1235 1236 #else 1237 1238 #define nx_mdns_create _nxe_mdns_create 1239 #define nx_mdns_delete _nxe_mdns_delete 1240 #define nx_mdns_enable _nxe_mdns_enable 1241 #define nx_mdns_disable _nxe_mdns_disable 1242 #define nx_mdns_cache_notify_set _nxe_mdns_cache_notify_set 1243 #define nx_mdns_cache_notify_clear _nxe_mdns_cache_notify_clear 1244 #define nx_mdns_domain_name_set _nxe_mdns_domain_name_set 1245 1246 #ifndef NX_MDNS_DISABLE_SERVER 1247 #define nx_mdns_service_announcement_timing_set _nxe_mdns_service_announcement_timing_set 1248 #define nx_mdns_service_add _nxe_mdns_service_add 1249 #define nx_mdns_service_delete _nxe_mdns_service_delete 1250 #define nx_mdns_local_cache_clear _nxe_mdns_local_cache_clear 1251 #endif /* NX_MDNS_DISABLE_SERVER */ 1252 1253 #ifndef NX_MDNS_DISABLE_CLIENT 1254 #define nx_mdns_service_one_shot_query _nxe_mdns_service_one_shot_query 1255 #define nx_mdns_service_continuous_query _nxe_mdns_service_continuous_query 1256 #define nx_mdns_service_query_stop _nxe_mdns_service_query_stop 1257 #define nx_mdns_service_lookup _nxe_mdns_service_lookup 1258 #define nx_mdns_service_ignore_set _nxe_mdns_service_ignore_set 1259 #define nx_mdns_service_notify_set _nxe_mdns_service_notify_set 1260 #define nx_mdns_service_notify_clear _nxe_mdns_service_notify_clear 1261 #define nx_mdns_host_address_get _nxe_mdns_host_address_get 1262 #define nx_mdns_peer_cache_clear _nxe_mdns_peer_cache_clear 1263 #endif /* NX_MDNS_DISABLE_CLIENT */ 1264 1265 #endif /* NX_DISABLE_ERROR_CHECKING */ 1266 1267 #endif /* NX_MDNS_SOURCE_CODE */ 1268 1269 1270 /* Define Thread function prototypes. */ 1271 UINT _nx_mdns_create(NX_MDNS *mdns_ptr, NX_IP *ip_ptr, NX_PACKET_POOL *packet_pool, 1272 UINT priority, VOID *stack_ptr, ULONG stack_size, UCHAR *host_name, 1273 VOID *local_cache_ptr, UINT local_cache_size, 1274 VOID *peer_cache_ptr, UINT peer_cache_size, 1275 VOID (*probing_notify)(NX_MDNS *mdns_ptr, UCHAR *name, UINT probing_state)); 1276 UINT _nxe_mdns_create(NX_MDNS *mdns_ptr, NX_IP *ip_ptr, NX_PACKET_POOL *packet_pool, 1277 UINT priority, VOID *stack_ptr, ULONG stack_size, UCHAR *host_name, 1278 VOID *local_cache_ptr, UINT local_cache_size, 1279 VOID *peer_cache_ptr, UINT peer_cache_size, 1280 VOID (*probing_notify)(NX_MDNS *mdns_ptr, UCHAR *name, UINT probing_state)); 1281 UINT _nx_mdns_delete(NX_MDNS *mdns_ptr); 1282 UINT _nxe_mdns_delete(NX_MDNS *mdns_ptr); 1283 UINT _nx_mdns_enable(NX_MDNS *mdns_ptr, UINT interface_index); 1284 UINT _nxe_mdns_enable(NX_MDNS *mdns_ptr, UINT interface_index); 1285 UINT _nx_mdns_disable(NX_MDNS *mdns_ptr, UINT interface_index); 1286 UINT _nxe_mdns_disable(NX_MDNS *mdns_ptr, UINT interface_index); 1287 UINT _nx_mdns_cache_notify_set(NX_MDNS *mdns_ptr, VOID (*cache_full_notify_cb)(NX_MDNS *mdns_ptr, UINT state, UINT cache_type)); 1288 UINT _nxe_mdns_cache_notify_set(NX_MDNS *mdns_ptr, VOID (*cache_full_notify_cb)(NX_MDNS *mdns_ptr, UINT state, UINT cache_type)); 1289 UINT _nx_mdns_cache_notify_clear(NX_MDNS *mdns_ptr); 1290 UINT _nxe_mdns_cache_notify_clear(NX_MDNS *mdns_ptr); 1291 UINT _nx_mdns_domain_name_set(NX_MDNS *mdns_ptr, UCHAR *domain_name); 1292 UINT _nxe_mdns_domain_name_set(NX_MDNS *mdns_ptr, UCHAR *domain_name); 1293 1294 #ifndef NX_MDNS_DISABLE_SERVER 1295 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); 1296 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); 1297 UINT _nx_mdns_service_add(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type, UCHAR *txt, ULONG ttl, 1298 USHORT priority, USHORT weights, USHORT port, UCHAR is_unique, UINT interface_index); 1299 UINT _nxe_mdns_service_add(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type, UCHAR *txt, ULONG ttl, 1300 USHORT priority, USHORT weights, USHORT port, UCHAR is_unique, UINT interface_index); 1301 UINT _nx_mdns_service_delete(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type); 1302 UINT _nxe_mdns_service_delete(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type); 1303 UINT _nx_mdns_local_cache_clear(NX_MDNS *mdns_ptr); 1304 UINT _nxe_mdns_local_cache_clear(NX_MDNS *mdns_ptr); 1305 #endif /* NX_MDNS_DISABLE_SERVER */ 1306 1307 #ifndef NX_MDNS_DISABLE_CLIENT 1308 UINT _nx_mdns_service_one_shot_query(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type, NX_MDNS_SERVICE *service, UINT timeout); 1309 UINT _nxe_mdns_service_one_shot_query(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type, NX_MDNS_SERVICE *service, UINT timeout); 1310 UINT _nx_mdns_service_continuous_query(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type); 1311 UINT _nxe_mdns_service_continuous_query(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type); 1312 UINT _nx_mdns_service_query_stop(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type); 1313 UINT _nxe_mdns_service_query_stop(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type); 1314 UINT _nx_mdns_service_lookup(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type, UINT service_index, NX_MDNS_SERVICE *service); 1315 UINT _nxe_mdns_service_lookup(NX_MDNS *mdns_ptr, UCHAR *name, UCHAR *type, UCHAR *sub_type, UINT service_index, NX_MDNS_SERVICE *service); 1316 UINT _nx_mdns_service_ignore_set(NX_MDNS *mdns_ptr, ULONG service_mask); 1317 UINT _nxe_mdns_service_ignore_set(NX_MDNS *mdns_ptr, ULONG service_mask); 1318 UINT _nx_mdns_service_notify_set(NX_MDNS *mdns_ptr, ULONG service_mask, 1319 VOID (*service_change_notify)(NX_MDNS *mdns_ptr, NX_MDNS_SERVICE *service_ptr, UINT state)); 1320 UINT _nxe_mdns_service_notify_set(NX_MDNS *mdns_ptr, ULONG service_mask, 1321 VOID (*service_change_notify)(NX_MDNS *mdns_ptr, NX_MDNS_SERVICE *service_ptr, UINT state)); 1322 UINT _nx_mdns_service_notify_clear(NX_MDNS *mdns_ptr); 1323 UINT _nxe_mdns_service_notify_clear(NX_MDNS *mdns_ptr); 1324 UINT _nx_mdns_host_address_get(NX_MDNS *mdns_ptr, UCHAR *host_name, ULONG *ipv4_address, ULONG *ipv6_address, UINT timeout); 1325 UINT _nxe_mdns_host_address_get(NX_MDNS *mdns_ptr, UCHAR *host_name, ULONG *ipv4_address, ULONG *ipv6_address, UINT timeout); 1326 UINT _nx_mdns_peer_cache_clear(NX_MDNS *mdns_ptr); 1327 UINT _nxe_mdns_peer_cache_clear(NX_MDNS *mdns_ptr); 1328 #endif /* NX_MDNS_DISABLE_CLIENT */ 1329 1330 1331 /* Determine if a C++ compiler is being used. If so, complete the standard 1332 C conditional started above. */ 1333 #ifdef __cplusplus 1334 } 1335 #endif 1336 1337 #endif /* NXD_MDNS_H */ 1338 1339
