1/* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16syntax = "proto2"; 17package android.stats.dnsresolver; 18 19enum EventType { 20 EVENT_UNKNOWN = 0; 21 EVENT_GETADDRINFO = 1; 22 EVENT_GETHOSTBYNAME = 2; 23 EVENT_GETHOSTBYADDR = 3; 24 EVENT_RES_NSEND = 4; 25} 26 27// The return value of the DNS resolver for each DNS lookups. 28// bionic/libc/include/netdb.h 29// system/netd/resolv/include/netd_resolv/resolv.h 30enum ReturnCode { 31 RC_EAI_NO_ERROR = 0; 32 RC_EAI_ADDRFAMILY = 1; 33 RC_EAI_AGAIN = 2; 34 RC_EAI_BADFLAGS = 3; 35 RC_EAI_FAIL = 4; 36 RC_EAI_FAMILY = 5; 37 RC_EAI_MEMORY = 6; 38 RC_EAI_NODATA = 7; 39 RC_EAI_NONAME = 8; 40 RC_EAI_SERVICE = 9; 41 RC_EAI_SOCKTYPE = 10; 42 RC_EAI_SYSTEM = 11; 43 RC_EAI_BADHINTS = 12; 44 RC_EAI_PROTOCOL = 13; 45 RC_EAI_OVERFLOW = 14; 46 RC_RESOLV_INTERNAL_ERROR = 254; 47 RC_RESOLV_TIMEOUT = 255; 48 RC_EAI_MAX = 256; 49} 50 51enum NsRcode { 52 NS_R_NO_ERROR = 0; // No error occurred. 53 NS_R_FORMERR = 1; // Format error. 54 NS_R_SERVFAIL = 2; // Server failure. 55 NS_R_NXDOMAIN = 3; // Name error. 56 NS_R_NOTIMPL = 4; // Unimplemented. 57 NS_R_REFUSED = 5; // Operation refused. 58 // these are for BIND_UPDATE 59 NS_R_YXDOMAIN = 6; // Name exists 60 NS_R_YXRRSET = 7; // RRset exists 61 NS_R_NXRRSET = 8; // RRset does not exist 62 NS_R_NOTAUTH = 9; // Not authoritative for zone 63 NS_R_NOTZONE = 10; // Zone of record different from zone section 64 NS_R_MAX = 11; 65 // Define rcode=12~15(UNASSIGNED) in rcode enum type. 66 // Some DNS Servers might return undefined code to devices. 67 // Without the enum definition, that would be noise for our dashboard. 68 NS_R_UNASSIGNED12 = 12; // Unassigned 69 NS_R_UNASSIGNED13 = 13; // Unassigned 70 NS_R_UNASSIGNED14 = 14; // Unassigned 71 NS_R_UNASSIGNED15 = 15; // Unassigned 72 // The following are EDNS extended rcodes 73 NS_R_BADVERS = 16; 74 // The following are TSIG errors 75 // NS_R_BADSIG = 16, 76 NS_R_BADKEY = 17; 77 NS_R_BADTIME = 18; 78 NS_R_INTERNAL_ERROR = 254; 79 NS_R_TIMEOUT = 255; 80} 81 82// Currently defined type values for resources and queries. 83enum NsType { 84 NS_T_INVALID = 0; // Cookie. 85 NS_T_A = 1; // Host address. 86 NS_T_NS = 2; // Authoritative server. 87 NS_T_MD = 3; // Mail destination. 88 NS_T_MF = 4; // Mail forwarder. 89 NS_T_CNAME = 5; // Canonical name. 90 NS_T_SOA = 6; // Start of authority zone. 91 NS_T_MB = 7; // Mailbox domain name. 92 NS_T_MG = 8; // Mail group member. 93 NS_T_MR = 9; // Mail rename name. 94 NS_T_NULL = 10; // Null resource record. 95 NS_T_WKS = 11; // Well known service. 96 NS_T_PTR = 12; // Domain name pointer. 97 NS_T_HINFO = 13; // Host information. 98 NS_T_MINFO = 14; // Mailbox information. 99 NS_T_MX = 15; // Mail routing information. 100 NS_T_TXT = 16; // Text strings. 101 NS_T_RP = 17; // Responsible person. 102 NS_T_AFSDB = 18; // AFS cell database. 103 NS_T_X25 = 19; // X_25 calling address. 104 NS_T_ISDN = 20; // ISDN calling address. 105 NS_T_RT = 21; // Router. 106 NS_T_NSAP = 22; // NSAP address. 107 NS_T_NSAP_PTR = 23; // Reverse NSAP lookup (deprecated). 108 NS_T_SIG = 24; // Security signature. 109 NS_T_KEY = 25; // Security key. 110 NS_T_PX = 26; // X.400 mail mapping. 111 NS_T_GPOS = 27; // Geographical position (withdrawn). 112 NS_T_AAAA = 28; // IPv6 Address. 113 NS_T_LOC = 29; // Location Information. 114 NS_T_NXT = 30; // Next domain (security). 115 NS_T_EID = 31; // Endpoint identifier. 116 NS_T_NIMLOC = 32; // Nimrod Locator. 117 NS_T_SRV = 33; // Server Selection. 118 NS_T_ATMA = 34; // ATM Address 119 NS_T_NAPTR = 35; // Naming Authority PoinTeR 120 NS_T_KX = 36; // Key Exchange 121 NS_T_CERT = 37; // Certification record 122 NS_T_A6 = 38; // IPv6 address (experimental) 123 NS_T_DNAME = 39; // Non-terminal DNAME 124 NS_T_SINK = 40; // Kitchen sink (experimentatl) 125 NS_T_OPT = 41; // EDNS0 option (meta-RR) 126 NS_T_APL = 42; // Address prefix list (RFC 3123) 127 NS_T_DS = 43; // Delegation Signer 128 NS_T_SSHFP = 44; // SSH Fingerprint 129 NS_T_IPSECKEY = 45; // IPSEC Key 130 NS_T_RRSIG = 46; // RRset Signature 131 NS_T_NSEC = 47; // Negative security 132 NS_T_DNSKEY = 48; // DNS Key 133 NS_T_DHCID = 49; // Dynamic host configuratin identifier 134 NS_T_NSEC3 = 50; // Negative security type 3 135 NS_T_NSEC3PARAM = 51; // Negative security type 3 parameters 136 NS_T_HIP = 55; // Host Identity Protocol 137 NS_T_SPF = 99; // Sender Policy Framework 138 NS_T_TKEY = 249; // Transaction key 139 NS_T_TSIG = 250; // Transaction signature. 140 NS_T_IXFR = 251; // Incremental zone transfer. 141 NS_T_AXFR = 252; // Transfer zone of authority. 142 NS_T_MAILB = 253; // Transfer mailbox records. 143 NS_T_MAILA = 254; // Transfer mail agent records. 144 NS_T_ANY = 255; // Wildcard match. 145 NS_T_ZXFR = 256; // BIND-specific, nonstandard. 146 NS_T_DLV = 32769; // DNSSEC look-aside validatation. 147 NS_T_MAX = 65536; 148} 149 150enum IpVersion { 151 IV_UNKNOWN = 0; 152 IV_IPV4 = 1; 153 IV_IPV6 = 2; 154} 155 156enum Protocol { 157 PROTO_UNKNOWN = 0; 158 PROTO_UDP = 1; 159 PROTO_TCP = 2; 160 PROTO_DOT = 3; 161} 162 163enum PrivateDnsModes { 164 PDM_UNKNOWN = 0; 165 PDM_OFF = 1; 166 PDM_OPPORTUNISTIC = 2; 167 PDM_STRICT = 3; 168} 169 170enum NetworkType { 171 NT_UNKNOWN = 0; 172 // Indicates this network uses a Cellular transport. 173 NT_CELLULAR = 1; 174 // Indicates this network uses a Wi-Fi transport. 175 NT_WIFI = 2; 176 // Indicates this network uses a Bluetooth transport. 177 NT_BLUETOOTH = 3; 178 // Indicates this network uses an Ethernet transport. 179 NT_ETHERNET = 4; 180 // Indicates this network uses a VPN transport, now deprecated. 181 NT_VPN = 5 [deprecated=true]; 182 // Indicates this network uses a Wi-Fi Aware transport. 183 NT_WIFI_AWARE = 6; 184 // Indicates this network uses a LoWPAN transport. 185 NT_LOWPAN = 7; 186 // Indicates this network uses a Cellular+VPN transport. 187 NT_CELLULAR_VPN = 8; 188 // Indicates this network uses a Wi-Fi+VPN transport. 189 NT_WIFI_VPN = 9; 190 // Indicates this network uses a Bluetooth+VPN transport. 191 NT_BLUETOOTH_VPN = 10; 192 // Indicates this network uses an Ethernet+VPN transport. 193 NT_ETHERNET_VPN = 11; 194 // Indicates this network uses a Wi-Fi+Cellular+VPN transport. 195 NT_WIFI_CELLULAR_VPN = 12; 196} 197 198enum CacheStatus{ 199 // the cache can't handle that kind of queries. 200 // or the answer buffer is too small. 201 CS_UNSUPPORTED = 0; 202 // the cache doesn't know about this query. 203 CS_NOTFOUND = 1; 204 // the cache found the answer. 205 CS_FOUND = 2; 206 // Don't do anything on cache. 207 CS_SKIP = 3; 208} 209 210// The enum LinuxErrno is defined in the following 2 files. 211// 1. bionic/libc/kernel/uapi/asm-generic/errno-base.h 212// 2. bionic/libc/kernel/uapi/asm-generic/errno.h 213enum LinuxErrno { 214 SYS_NO_ERROR = 0; 215 SYS_EPERM = 1; // Not super-user 216 SYS_ENOENT = 2; // No such file or directory 217 SYS_ESRCH = 3; // No such process 218 SYS_EINTR = 4; // Interrupted system call 219 SYS_EIO = 5; // I/O error 220 SYS_ENXIO = 6; // No such device or address 221 SYS_E2BIG = 7; // Arg list too long 222 SYS_ENOEXEC = 8; // Exec format error 223 SYS_EBADF = 9; // Bad file number 224 SYS_ECHILD = 10; // No children 225 SYS_EAGAIN = 11; // No more processes 226 SYS_ENOMEM = 12; // Not enough core 227 SYS_EACCES = 13; // Permission denied 228 SYS_EFAULT = 14; // Bad address 229 SYS_ENOTBLK = 15; // Block device required 230 SYS_EBUSY = 16; // Mount device busy 231 SYS_EEXIST = 17; // File exists 232 SYS_EXDEV = 18; // Cross-device link 233 SYS_ENODEV = 19; // No such device 234 SYS_ENOTDIR = 20; // Not a directory 235 SYS_EISDIR = 21; // Is a directory 236 SYS_EINVAL = 22; // Invalid argument 237 SYS_ENFILE = 23; // Too many open files in system 238 SYS_EMFILE = 24; // Too many open files 239 SYS_ENOTTY = 25; // Not a typewriter 240 SYS_ETXTBSY = 26; // Text file busy 241 SYS_EFBIG = 27; // File too large 242 SYS_ENOSPC = 28; // No space left on device 243 SYS_ESPIPE = 29; // Illegal seek 244 SYS_EROFS = 30; // Read only file system 245 SYS_EMLINK = 31; // Too many links 246 SYS_EPIPE = 32; // Broken pipe 247 SYS_EDOM = 33; // Math arg out of domain of func 248 SYS_ERANGE = 34; // Math result not representable 249 SYS_EDEADLOCK = 35; // File locking deadlock error 250 SYS_ENAMETOOLONG = 36; // File or path name too long 251 SYS_ENOLCK = 37; // No record locks available 252 SYS_ENOSYS = 38; // Function not implemented 253 SYS_ENOTEMPTY = 39; // Directory not empty 254 SYS_ELOOP = 40; // Too many symbolic links 255 SYS_ENOMSG = 42; // No message of desired type 256 SYS_EIDRM = 43; // Identifier removed 257 SYS_ECHRNG = 44; // Channel number out of range 258 SYS_EL2NSYNC = 45; // Level 2 not synchronized 259 SYS_EL3HLT = 46; // Level 3 halted 260 SYS_EL3RST = 47; // Level 3 reset 261 SYS_ELNRNG = 48; // Link number out of range 262 SYS_EUNATCH = 49; // rotocol driver not attached 263 SYS_ENOCSI = 50; // No CSI structure available 264 SYS_EL2HLT = 51; // Level 2 halted 265 SYS_EBADE = 52; // Invalid exchange 266 SYS_EBADR = 53; // Invalid request descriptor 267 SYS_EXFULL = 54; // Exchange full 268 SYS_ENOANO = 55; // No anode 269 SYS_EBADRQC = 56; // Invalid request code 270 SYS_EBADSLT = 57; // Invalid slot 271 SYS_EBFONT = 59; // Bad font file fmt 272 SYS_ENOSTR = 60; // Device not a stream 273 SYS_ENODATA = 61; // No data (for no delay io) 274 SYS_ETIME = 62; // Timer expired 275 SYS_ENOSR = 63; // Out of streams resources 276 SYS_ENONET = 64; // Machine is not on the network 277 SYS_ENOPKG = 65; // Package not installed 278 SYS_EREMOTE = 66; // The object is remote 279 SYS_ENOLINK = 67; // The link has been severed 280 SYS_EADV = 68; // Advertise error 281 SYS_ESRMNT = 69; // Srmount error 282 SYS_ECOMM = 70; // Communication error on send 283 SYS_EPROTO = 71; // Protocol error 284 SYS_EMULTIHOP = 72; // Multihop attempted 285 SYS_EDOTDOT = 73; // Cross mount point (not really error) 286 SYS_EBADMSG = 74; // Trying to read unreadable message 287 SYS_EOVERFLOW = 75; // Value too large for defined data type 288 SYS_ENOTUNIQ = 76; // Given log. name not unique 289 SYS_EBADFD = 77; // f.d. invalid for this operation 290 SYS_EREMCHG = 78; // Remote address changed 291 SYS_ELIBACC = 79; // Can't access a needed shared lib 292 SYS_ELIBBAD = 80; // Accessing a corrupted shared lib 293 SYS_ELIBSCN = 81; // .lib section in a.out corrupted 294 SYS_ELIBMAX = 82; // Attempting to link in too many libs 295 SYS_ELIBEXEC = 83; // Attempting to exec a shared library 296 SYS_EILSEQ = 84; 297 SYS_ERESTART = 85; 298 SYS_ESTRPIPE = 86; 299 SYS_EUSERS = 87; 300 SYS_ENOTSOCK = 88; // Socket operation on non-socket 301 SYS_EDESTADDRREQ = 89; // Destination address required 302 SYS_EMSGSIZE = 90; // Message too long 303 SYS_EPROTOTYPE = 91; // Protocol wrong type for socket 304 SYS_ENOPROTOOPT = 92; // Protocol not available 305 SYS_EPROTONOSUPPORT = 93; // Unknown protocol 306 SYS_ESOCKTNOSUPPORT = 94; // Socket type not supported 307 SYS_EOPNOTSUPP = 95; // Operation not supported on transport endpoint 308 SYS_EPFNOSUPPORT = 96; // Protocol family not supported 309 SYS_EAFNOSUPPORT = 97; // Address family not supported by protocol family 310 SYS_EADDRINUSE = 98; // Address already in use 311 SYS_EADDRNOTAVAIL = 99; // Address not available 312 SYS_ENETDOWN = 100; // Network interface is not configured 313 SYS_ENETUNREACH = 101; // Network is unreachable 314 SYS_ENETRESET = 102; 315 SYS_ECONNABORTED = 103; // Connection aborted 316 SYS_ECONNRESET = 104; // Connection reset by peer 317 SYS_ENOBUFS = 105; // No buffer space available 318 SYS_EISCONN = 106; // Socket is already connected 319 SYS_ENOTCONN = 107; // Socket is not connected 320 SYS_ESHUTDOWN = 108; // Can't send after socket shutdown 321 SYS_ETOOMANYREFS = 109; 322 SYS_ETIMEDOUT = 110; // Connection timed out 323 SYS_ECONNREFUSED = 111; // Connection refused 324 SYS_EHOSTDOWN = 112; // Host is down 325 SYS_EHOSTUNREACH = 113; // Host is unreachable 326 SYS_EALREADY = 114; // Socket already connected 327 SYS_EINPROGRESS = 115; // Connection already in progress 328 SYS_ESTALE = 116; 329 SYS_EUCLEAN = 117; 330 SYS_ENOTNAM = 118; 331 SYS_ENAVAIL = 119; 332 SYS_EISNAM = 120; 333 SYS_EREMOTEIO = 121; 334 SYS_EDQUOT = 122; 335 SYS_ENOMEDIUM = 123; // No medium (in tape drive) 336 SYS_EMEDIUMTYPE = 124; 337 SYS_ECANCELED = 125; 338 SYS_ENOKEY = 126; 339 SYS_EKEYEXPIRED = 127; 340 SYS_EKEYREVOKED = 128; 341 SYS_EKEYREJECTED = 129; 342 SYS_EOWNERDEAD = 130; 343 SYS_ENOTRECOVERABLE = 131; 344 SYS_ERFKILL = 132; 345 SYS_EHWPOISON = 133; 346} 347 348message DnsQueryEvent { 349 optional android.stats.dnsresolver.NsRcode rcode = 1; 350 351 optional android.stats.dnsresolver.NsType type = 2; 352 353 optional android.stats.dnsresolver.CacheStatus cache_hit = 3; 354 355 optional android.stats.dnsresolver.IpVersion ip_version = 4; 356 357 optional android.stats.dnsresolver.Protocol protocol = 5; 358 359 // Number of DNS query retry times 360 optional int32 retry_times = 6; 361 362 // Ordinal number of name server. 363 optional int32 dns_server_index = 7; 364 365 // Used only by TCP and DOT. True for new connections. 366 optional bool connected = 8; 367 368 optional int32 latency_micros = 9; 369 370 optional android.stats.dnsresolver.LinuxErrno linux_errno = 10; 371} 372 373message DnsQueryEvents { 374 repeated DnsQueryEvent dns_query_event = 1; 375} 376