| File: | wiretap/file_access.c |
| Warning: | line 2271, column 13 Potential leak of memory pointed to by 'wdh' |
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| 1 | /* file_access.c | |||
| 2 | * | |||
| 3 | * Wiretap Library | |||
| 4 | * Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu> | |||
| 5 | * | |||
| 6 | * SPDX-License-Identifier: GPL-2.0-or-later | |||
| 7 | */ | |||
| 8 | ||||
| 9 | #include "config.h" | |||
| 10 | #define WS_LOG_DOMAIN"Wiretap" LOG_DOMAIN_WIRETAP"Wiretap" | |||
| 11 | #include "wtap-int.h" | |||
| 12 | ||||
| 13 | #include <assert.h> | |||
| 14 | ||||
| 15 | #include <string.h> | |||
| 16 | #include <stdlib.h> | |||
| 17 | ||||
| 18 | #include <errno(*__errno_location ()).h> | |||
| 19 | ||||
| 20 | #include <wsutil/file_util.h> | |||
| 21 | #include <wsutil/tempfile.h> | |||
| 22 | #ifdef HAVE_PLUGINS1 | |||
| 23 | #include <wsutil/plugins.h> | |||
| 24 | #endif | |||
| 25 | #include <wsutil/ws_assert.h> | |||
| 26 | ||||
| 27 | #include "wtap_modules.h" | |||
| 28 | #include "file_wrappers.h" | |||
| 29 | #include "required_file_handlers.h" | |||
| 30 | #include <wsutil/application_flavor.h> | |||
| 31 | #include <wsutil/buffer.h> | |||
| 32 | #include <wsutil/str_util.h> | |||
| 33 | ||||
| 34 | #include "lanalyzer.h" | |||
| 35 | #include "ngsniffer.h" | |||
| 36 | #include "radcom.h" | |||
| 37 | #include "ascendtext.h" | |||
| 38 | #include "nettl.h" | |||
| 39 | #include "libpcap.h" | |||
| 40 | #include "snoop.h" | |||
| 41 | #include "iptrace.h" | |||
| 42 | #include "iseries.h" | |||
| 43 | #include "netmon.h" | |||
| 44 | #include "netxray.h" | |||
| 45 | #include "toshiba.h" | |||
| 46 | #include "eyesdn.h" | |||
| 47 | #include "i4btrace.h" | |||
| 48 | #include "csids.h" | |||
| 49 | #include "pppdump.h" | |||
| 50 | #include "peekclassic.h" | |||
| 51 | #include "peektagged.h" | |||
| 52 | #include "vms.h" | |||
| 53 | #include "dbs-etherwatch.h" | |||
| 54 | #include "visual.h" | |||
| 55 | #include "cosine.h" | |||
| 56 | #include "5views.h" | |||
| 57 | #include "erf.h" | |||
| 58 | #include "hcidump.h" | |||
| 59 | #include "logcat.h" | |||
| 60 | #include "logcat_text.h" | |||
| 61 | #include "json.h" | |||
| 62 | #include "observer.h" | |||
| 63 | #include "k12.h" | |||
| 64 | #include "ber.h" | |||
| 65 | #include "catapult_dct2000.h" | |||
| 66 | #include "mp4.h" | |||
| 67 | #include "mp2t.h" | |||
| 68 | #include "mpeg.h" | |||
| 69 | #include "netscreen.h" | |||
| 70 | #include "commview.h" | |||
| 71 | #include "pcapng.h" | |||
| 72 | #include "aethra.h" | |||
| 73 | #include "btsnoop.h" | |||
| 74 | #include "tnef.h" | |||
| 75 | #include "dct3trace.h" | |||
| 76 | #include "packetlogger.h" | |||
| 77 | #include "daintree-sna.h" | |||
| 78 | #include "netscaler.h" | |||
| 79 | #include "mime_file.h" | |||
| 80 | #include "ipfix.h" | |||
| 81 | #include "vwr.h" | |||
| 82 | #include "camins.h" | |||
| 83 | #include "stanag4607.h" | |||
| 84 | #include "capsa.h" | |||
| 85 | #include "nettrace_3gpp_32_423.h" | |||
| 86 | #include "mplog.h" | |||
| 87 | #include "dpa400.h" | |||
| 88 | #include "rfc7468.h" | |||
| 89 | #include "ruby_marshal.h" | |||
| 90 | #include "systemd_journal.h" | |||
| 91 | #include "log3gpp.h" | |||
| 92 | #include "candump.h" | |||
| 93 | #include "busmaster.h" | |||
| 94 | #include "cllog.h" | |||
| 95 | #include "blf.h" | |||
| 96 | #include "eri_enb_log.h" | |||
| 97 | #include "autosar_dlt.h" | |||
| 98 | #include "rtpdump.h" | |||
| 99 | #include "ems.h" | |||
| 100 | #include "ttl.h" | |||
| 101 | #include "peak-trc.h" | |||
| 102 | ||||
| 103 | /* | |||
| 104 | * Add an extension, and all compressed versions thereof if requested, | |||
| 105 | * to a GSList of extensions. | |||
| 106 | */ | |||
| 107 | static GSList * | |||
| 108 | add_extensions(GSList *extensions, const char *extension, | |||
| 109 | GSList *compression_type_extensions) | |||
| 110 | { | |||
| 111 | /* | |||
| 112 | * Add the specified extension. | |||
| 113 | */ | |||
| 114 | extensions = g_slist_prepend(extensions, g_strdup(extension)g_strdup_inline (extension)); | |||
| 115 | ||||
| 116 | /* | |||
| 117 | * Add whatever compressed versions we were supplied. | |||
| 118 | */ | |||
| 119 | for (GSList *compression_type_extension = compression_type_extensions; | |||
| 120 | compression_type_extension != NULL((void*)0); | |||
| 121 | compression_type_extension = g_slist_next(compression_type_extension)((compression_type_extension) ? (((GSList *)(compression_type_extension ))->next) : ((void*)0))) { | |||
| 122 | extensions = g_slist_prepend(extensions, | |||
| 123 | ws_strdup_printf("%s.%s", extension,wmem_strdup_printf(((void*)0), "%s.%s", extension, (const char *)compression_type_extension->data) | |||
| 124 | (const char *)compression_type_extension->data)wmem_strdup_printf(((void*)0), "%s.%s", extension, (const char *)compression_type_extension->data)); | |||
| 125 | } | |||
| 126 | ||||
| 127 | return extensions; | |||
| 128 | } | |||
| 129 | ||||
| 130 | /* | |||
| 131 | * File types that can be identified by file extensions. | |||
| 132 | * | |||
| 133 | * These are used in file open dialogs to offer choices of extensions | |||
| 134 | * for which to filter. Note that the first field can list more than | |||
| 135 | * one type of file, because, for example, ".cap" is a popular | |||
| 136 | * extension used by a number of capture file types. | |||
| 137 | * | |||
| 138 | * File types that *don't* have a file extension used for them should | |||
| 139 | * *not* be placed here; if there's nothing to put in the last field | |||
| 140 | * of the structure, don't put an entry here, not even one with an | |||
| 141 | * empty string for the extensions list. | |||
| 142 | * | |||
| 143 | * All added file types, regardless of extension or lack thereof, | |||
| 144 | * must also be added open_info_base[] below. | |||
| 145 | */ | |||
| 146 | static const struct file_extension_info wireshark_file_type_extensions_base[] = { | |||
| 147 | { "Wireshark/tcpdump/... - pcap", true1, "pcap;cap;dmp" }, | |||
| 148 | { "Wireshark/... - pcapng", true1, "pcapng;ntar" }, | |||
| 149 | { "Network Monitor, Surveyor, NetScaler", true1, "cap" }, | |||
| 150 | { "Sun snoop", true1, "snoop" }, | |||
| 151 | { "InfoVista 5View capture", true1, "5vw" }, | |||
| 152 | { "Sniffer (DOS)", true1, "cap;enc;trc;fdc;syc" }, | |||
| 153 | { "Cinco NetXRay, Sniffer (Windows)", true1, "cap;caz" }, | |||
| 154 | { "Endace ERF capture", true1, "erf" }, | |||
| 155 | { "EyeSDN USB S0/E1 ISDN trace format", true1, "trc" }, | |||
| 156 | { "HP-UX nettl trace", true1, "trc0;trc1" }, | |||
| 157 | { "Viavi Observer", true1, "bfr" }, | |||
| 158 | { "Colasoft Capsa", true1, "cscpkt" }, | |||
| 159 | { "Novell LANalyzer", true1, "tr1" }, | |||
| 160 | { "Tektronix K12xx 32-bit .rf5 format", true1, "rf5" }, | |||
| 161 | { "Savvius *Peek", true1, "pkt;tpc;apc;wpz" }, | |||
| 162 | { "Catapult DCT2000 trace (.out format)", true1, "out" }, | |||
| 163 | { "Micropross mplog", true1, "mplog" }, | |||
| 164 | { "TamoSoft CommView NCF", true1, "ncf" }, | |||
| 165 | { "TamoSoft CommView NCFX", true1, "ncfx" }, | |||
| 166 | { "Symbian OS btsnoop", true1, "log" }, | |||
| 167 | { "XML files (including Gammu DCT3 traces)", true1, "xml" }, | |||
| 168 | { "macOS PacketLogger", true1, "pklg" }, | |||
| 169 | { "Daintree SNA", true1, "dcf" }, | |||
| 170 | { "IPFIX File Format", true1, "pfx;ipfix" }, | |||
| 171 | { "Aethra .aps file", true1, "aps" }, | |||
| 172 | { "MPEG2 transport stream", true1, "mp2t;ts;m2ts;mpg" }, | |||
| 173 | { "Ixia IxVeriWave .vwr Raw 802.11 Capture", true1, "vwr" }, | |||
| 174 | { "CAM Inspector file", true1, "camins" }, | |||
| 175 | { "BLF file", true1, "blf" }, | |||
| 176 | { "AUTOSAR DLT file", true1, "dlt" }, | |||
| 177 | { "TTL file", true1, "ttl" }, | |||
| 178 | { "MPEG files", false0, "mpeg;mpg;mp3" }, | |||
| 179 | { "Transport-Neutral Encapsulation Format", false0, "tnef" }, | |||
| 180 | { "JPEG/JFIF files", false0, "jpg;jpeg;jfif" }, | |||
| 181 | { "JavaScript Object Notation file", false0, "json" }, | |||
| 182 | { "MP4 file", false0, "mp4" }, | |||
| 183 | { "RTPDump file", false0, "rtp;rtpdump" }, | |||
| 184 | { "EMS file", false0, "ems" }, | |||
| 185 | { "ASN.1 Basic Encoding Rules", false0, "cer;crl;csr;p10;p12;p772;p7c;p7s;p7m;p8;pfx;tsq;tsr" }, | |||
| 186 | { "RFC 7468 files", false0, "crt;pem" }, | |||
| 187 | { "PEAK CAN TRC log", true1, "trc" }, | |||
| 188 | }; | |||
| 189 | ||||
| 190 | #define N_WIRESHARK_FILE_TYPE_EXTENSIONS(sizeof (wireshark_file_type_extensions_base) / sizeof (wireshark_file_type_extensions_base )[0]) array_length(wireshark_file_type_extensions_base)(sizeof (wireshark_file_type_extensions_base) / sizeof (wireshark_file_type_extensions_base )[0]) | |||
| 191 | ||||
| 192 | static const struct file_extension_info stratoshark_file_type_extensions_base[] = { | |||
| 193 | {"Stratoshark/... - scap", true1, "scap"}, | |||
| 194 | }; | |||
| 195 | ||||
| 196 | #define N_STRATOSHARK_FILE_TYPE_EXTENSIONS(sizeof (stratoshark_file_type_extensions_base) / sizeof (stratoshark_file_type_extensions_base )[0]) array_length(stratoshark_file_type_extensions_base)(sizeof (stratoshark_file_type_extensions_base) / sizeof (stratoshark_file_type_extensions_base )[0]) | |||
| 197 | ||||
| 198 | static const struct file_extension_info* file_type_extensions; | |||
| 199 | ||||
| 200 | static GArray* file_type_extensions_arr; | |||
| 201 | ||||
| 202 | /* initialize the extensions array if it has not been initialized yet */ | |||
| 203 | static void | |||
| 204 | init_file_type_extensions(void) | |||
| 205 | { | |||
| 206 | ||||
| 207 | if (file_type_extensions_arr) return; | |||
| 208 | ||||
| 209 | file_type_extensions_arr = g_array_new(false0,true1,sizeof(struct file_extension_info)); | |||
| 210 | ||||
| 211 | if (application_flavor_is_wireshark()) { | |||
| 212 | g_array_append_vals(file_type_extensions_arr, wireshark_file_type_extensions_base, N_WIRESHARK_FILE_TYPE_EXTENSIONS(sizeof (wireshark_file_type_extensions_base) / sizeof (wireshark_file_type_extensions_base )[0])); | |||
| 213 | } else { | |||
| 214 | g_array_append_vals(file_type_extensions_arr, stratoshark_file_type_extensions_base, N_STRATOSHARK_FILE_TYPE_EXTENSIONS(sizeof (stratoshark_file_type_extensions_base) / sizeof (stratoshark_file_type_extensions_base )[0])); | |||
| 215 | } | |||
| 216 | ||||
| 217 | file_type_extensions = (struct file_extension_info*)(void *)file_type_extensions_arr->data; | |||
| 218 | } | |||
| 219 | ||||
| 220 | void | |||
| 221 | wtap_register_file_type_extension(const struct file_extension_info *ei) | |||
| 222 | { | |||
| 223 | init_file_type_extensions(); | |||
| 224 | ||||
| 225 | g_array_append_val(file_type_extensions_arr,*ei)g_array_append_vals (file_type_extensions_arr, &(*ei), 1); | |||
| 226 | ||||
| 227 | file_type_extensions = (const struct file_extension_info*)(void *)file_type_extensions_arr->data; | |||
| 228 | } | |||
| 229 | ||||
| 230 | int | |||
| 231 | wtap_get_num_file_type_extensions(void) | |||
| 232 | { | |||
| 233 | return file_type_extensions_arr->len; | |||
| 234 | } | |||
| 235 | ||||
| 236 | const char * | |||
| 237 | wtap_get_file_extension_type_name(int extension_type) | |||
| 238 | { | |||
| 239 | return file_type_extensions[extension_type].name; | |||
| 240 | } | |||
| 241 | ||||
| 242 | static GSList * | |||
| 243 | add_extensions_for_file_extensions_type(int extension_type, GSList *extensions, | |||
| 244 | GSList *compression_type_extensions) | |||
| 245 | { | |||
| 246 | char **extensions_set, **extensionp, *extension; | |||
| 247 | ||||
| 248 | /* | |||
| 249 | * Split the extension-list string into a set of extensions. | |||
| 250 | */ | |||
| 251 | extensions_set = g_strsplit(file_type_extensions[extension_type].extensions, | |||
| 252 | ";", 0); | |||
| 253 | ||||
| 254 | /* | |||
| 255 | * Add each of those extensions to the list. | |||
| 256 | */ | |||
| 257 | for (extensionp = extensions_set; *extensionp != NULL((void*)0); extensionp++) { | |||
| 258 | extension = *extensionp; | |||
| 259 | ||||
| 260 | /* | |||
| 261 | * Add the extension, and all compressed variants | |||
| 262 | * of it. | |||
| 263 | */ | |||
| 264 | extensions = add_extensions(extensions, extension, | |||
| 265 | compression_type_extensions); | |||
| 266 | } | |||
| 267 | ||||
| 268 | g_strfreev(extensions_set); | |||
| 269 | return extensions; | |||
| 270 | } | |||
| 271 | ||||
| 272 | /* Return a list of file extensions that are used by the specified file | |||
| 273 | * extension type. | |||
| 274 | * | |||
| 275 | * All strings in the list are allocated with g_malloc() and must be freed | |||
| 276 | * with g_free(). | |||
| 277 | */ | |||
| 278 | GSList * | |||
| 279 | wtap_get_file_extension_type_extensions(unsigned extension_type) | |||
| 280 | { | |||
| 281 | GSList *extensions, *compression_type_extensions; | |||
| 282 | ||||
| 283 | if (extension_type >= file_type_extensions_arr->len) | |||
| 284 | return NULL((void*)0); /* not a valid extension type */ | |||
| 285 | ||||
| 286 | extensions = NULL((void*)0); /* empty list, to start with */ | |||
| 287 | ||||
| 288 | /* | |||
| 289 | * Get compression-type extensions, if any. | |||
| 290 | */ | |||
| 291 | compression_type_extensions = wtap_get_all_compression_type_extensions_list(); | |||
| 292 | ||||
| 293 | /* | |||
| 294 | * Add all this file extension type's extensions, with compressed | |||
| 295 | * variants. | |||
| 296 | */ | |||
| 297 | extensions = add_extensions_for_file_extensions_type(extension_type, | |||
| 298 | extensions, compression_type_extensions); | |||
| 299 | ||||
| 300 | g_slist_free(compression_type_extensions); | |||
| 301 | ||||
| 302 | return g_slist_reverse(extensions); | |||
| 303 | } | |||
| 304 | ||||
| 305 | /* | |||
| 306 | * The open_file_* routines must return: | |||
| 307 | * | |||
| 308 | * WTAP_OPEN_ERROR on an I/O error; | |||
| 309 | * | |||
| 310 | * WTAP_OPEN_MINE if the file they're reading is one of the types | |||
| 311 | * it handles; | |||
| 312 | * | |||
| 313 | * WTAP_OPEN_NOT_MINE if the file they're reading isn't the type | |||
| 314 | * they're checking for. | |||
| 315 | * | |||
| 316 | * If the routine handles this type of file, it must set the "file_type" | |||
| 317 | * field in the "struct wtap" to the type of the file. | |||
| 318 | * | |||
| 319 | * Note that the routine does *not* have to free the private data pointer on | |||
| 320 | * error. The caller takes care of that by calling wtap_close on error. | |||
| 321 | * (See https://gitlab.com/wireshark/wireshark/-/issues/8518) | |||
| 322 | * | |||
| 323 | * However, the caller *does* have to free the private data pointer when | |||
| 324 | * returning WTAP_OPEN_NOT_MINE, since the next file type will be called | |||
| 325 | * and will likely just overwrite the pointer. | |||
| 326 | * | |||
| 327 | * The names are used in file open dialogs to select, for files that | |||
| 328 | * don't have magic numbers and that could potentially be files of | |||
| 329 | * more than one type based on the heuristics, a particular file | |||
| 330 | * type to interpret it as, if the file name has no extension, the | |||
| 331 | * extension isn't sufficient to determine the appropriate file type, | |||
| 332 | * or the extension is wrong. | |||
| 333 | * | |||
| 334 | * NOTE: when adding file formats to this list you may also want to add them | |||
| 335 | * to the following files so that the various desktop environments will | |||
| 336 | * know that Wireshark can open the file: | |||
| 337 | * 1) resources/freedesktop/org.wireshark.Wireshark-mime.xml (for freedesktop.org environments) | |||
| 338 | * 2) packaging/macosx/WiresharkInfo.plist.in (for macOS) | |||
| 339 | * | |||
| 340 | * If your file format has a commonly-used extension (e.g., ".pcap") then you | |||
| 341 | * should probably also add it to file_type_extensions_base[] (in this file), | |||
| 342 | * to the list of "<glob pattern=...>" entries for this file format in | |||
| 343 | * resources/freedesktop/org.wireshark.Wireshark-mime.xml, to the | |||
| 344 | * CFBundleTypeExtensions array for this file format in | |||
| 345 | * packaging/macosx/WiresharkInfo.plist, and to the PushFileExtensions macro | |||
| 346 | * in packaging/nsis/wireshark-common.nsh and the File Associations in | |||
| 347 | * packaging/wix/ComponentGroups.wxi (for Windows). | |||
| 348 | */ | |||
| 349 | static const struct open_info open_info_base[] = { | |||
| 350 | /* Open routines that look for magic numbers */ | |||
| 351 | { "Wireshark/tcpdump/... - pcap", OPEN_INFO_MAGIC, libpcap_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 352 | { "Wireshark/... - pcapng", OPEN_INFO_MAGIC, pcapng_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 353 | { "Sniffer (DOS)", OPEN_INFO_MAGIC, ngsniffer_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 354 | { "Snoop, Shomiti/Finisar Surveyor", OPEN_INFO_MAGIC, snoop_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 355 | { "AIX iptrace", OPEN_INFO_MAGIC, iptrace_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 356 | { "Microsoft Network Monitor", OPEN_INFO_MAGIC, netmon_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 357 | { "Cinco NetXray/Sniffer (Windows)", OPEN_INFO_MAGIC, netxray_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 358 | { "RADCOM WAN/LAN analyzer", OPEN_INFO_MAGIC, radcom_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 359 | { "HP-UX nettl trace", OPEN_INFO_MAGIC, nettl_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 360 | { "Visual Networks traffic capture", OPEN_INFO_MAGIC, visual_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 361 | { "InfoVista 5View capture", OPEN_INFO_MAGIC, _5views_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 362 | { "Viavi Observer", OPEN_INFO_MAGIC, observer_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 363 | { "Savvius tagged", OPEN_INFO_MAGIC, peektagged_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 364 | { "Colasoft Capsa", OPEN_INFO_MAGIC, capsa_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 365 | { "DBS Etherwatch (VMS)", OPEN_INFO_MAGIC, dbs_etherwatch_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 366 | { "Tektronix K12xx 32-bit .rf5 format", OPEN_INFO_MAGIC, k12_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 367 | { "Catapult DCT2000 trace (.out format)", OPEN_INFO_MAGIC, catapult_dct2000_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 368 | { "Aethra .aps file", OPEN_INFO_MAGIC, aethra_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 369 | { "Symbian OS btsnoop", OPEN_INFO_MAGIC, btsnoop_open, "log", NULL((void*)0), NULL((void*)0) }, | |||
| 370 | { "EyeSDN USB S0/E1 ISDN trace format", OPEN_INFO_MAGIC, eyesdn_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 371 | { "Transport-Neutral Encapsulation Format", OPEN_INFO_MAGIC, tnef_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 372 | /* 3GPP TS 32.423 Trace must come before MIME Files as it's XML based*/ | |||
| 373 | { "3GPP TS 32.423 Trace format", OPEN_INFO_MAGIC, nettrace_3gpp_32_423_file_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 374 | /* Gammu DCT3 trace must come before MIME files as it's XML based*/ | |||
| 375 | { "Gammu DCT3 trace", OPEN_INFO_MAGIC, dct3trace_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 376 | { "BLF Logfile", OPEN_INFO_MAGIC, blf_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 377 | { "AUTOSAR DLT Logfile", OPEN_INFO_MAGIC, autosar_dlt_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 378 | { "TTL Logfile", OPEN_INFO_MAGIC, ttl_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 379 | { "RTPDump files", OPEN_INFO_MAGIC, rtpdump_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 380 | { "MIME Files Format", OPEN_INFO_MAGIC, mime_file_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 381 | { "Micropross mplog", OPEN_INFO_MAGIC, mplog_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 382 | { "Unigraf DPA-400 capture", OPEN_INFO_MAGIC, dpa400_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 383 | { "RFC 7468 files", OPEN_INFO_MAGIC, rfc7468_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 384 | ||||
| 385 | /* Open routines that have no magic numbers and require heuristics. */ | |||
| 386 | { "Novell LANalyzer", OPEN_INFO_HEURISTIC, lanalyzer_open, "tr1", NULL((void*)0), NULL((void*)0) }, | |||
| 387 | /* | |||
| 388 | * PacketLogger must come before MPEG, because its files | |||
| 389 | * are sometimes grabbed by mpeg_open. | |||
| 390 | */ | |||
| 391 | { "macOS PacketLogger", OPEN_INFO_HEURISTIC, packetlogger_open, "pklg", NULL((void*)0), NULL((void*)0) }, | |||
| 392 | /* Some MPEG files have magic numbers, others just have heuristics. */ | |||
| 393 | { "MPEG", OPEN_INFO_HEURISTIC, mpeg_open, "mpeg;mpg;mp3", NULL((void*)0), NULL((void*)0) }, | |||
| 394 | { "Daintree SNA", OPEN_INFO_HEURISTIC, daintree_sna_open, "dcf", NULL((void*)0), NULL((void*)0) }, | |||
| 395 | { "STANAG 4607 Format", OPEN_INFO_HEURISTIC, stanag4607_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 396 | { "ASN.1 Basic Encoding Rules", OPEN_INFO_HEURISTIC, ber_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 397 | /* | |||
| 398 | * I put NetScreen *before* erf, because there were some | |||
| 399 | * false positives with my test-files (Sake Blok, July 2007) | |||
| 400 | * | |||
| 401 | * I put VWR *after* ERF, because there were some cases where | |||
| 402 | * ERF files were misidentified as vwr files (Stephen | |||
| 403 | * Donnelly, August 2013; see bug 9054) | |||
| 404 | * | |||
| 405 | * I put VWR *after* Peek Classic, CommView, iSeries text, | |||
| 406 | * Toshiba text, K12 text, VMS tcpiptrace text, and NetScaler, | |||
| 407 | * because there were some cases where files of those types were | |||
| 408 | * misidentified as vwr files (Guy Harris, December 2013) | |||
| 409 | */ | |||
| 410 | { "NetScreen snoop text file", OPEN_INFO_HEURISTIC, netscreen_open, "txt", NULL((void*)0), NULL((void*)0) }, | |||
| 411 | { "Endace ERF capture", OPEN_INFO_HEURISTIC, erf_open, "erf", NULL((void*)0), NULL((void*)0) }, | |||
| 412 | { "IPFIX File Format", OPEN_INFO_HEURISTIC, ipfix_open, "pfx;ipfix",NULL((void*)0), NULL((void*)0) }, | |||
| 413 | { "K12 text file", OPEN_INFO_HEURISTIC, k12text_open, "txt", NULL((void*)0), NULL((void*)0) }, | |||
| 414 | { "Savvius classic", OPEN_INFO_HEURISTIC, peekclassic_open, "pkt;tpc;apc;wpz", NULL((void*)0), NULL((void*)0) }, | |||
| 415 | { "pppd log (pppdump format)", OPEN_INFO_HEURISTIC, pppdump_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 416 | { "IBM iSeries comm. trace", OPEN_INFO_HEURISTIC, iseries_open, "txt", NULL((void*)0), NULL((void*)0) }, | |||
| 417 | { "I4B ISDN trace", OPEN_INFO_HEURISTIC, i4btrace_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 418 | { "MPEG2 transport stream", OPEN_INFO_HEURISTIC, mp2t_open, "mp2t;ts;mpg", NULL((void*)0), NULL((void*)0) }, | |||
| 419 | { "CSIDS IPLog", OPEN_INFO_HEURISTIC, csids_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 420 | { "TCPIPtrace (VMS)", OPEN_INFO_HEURISTIC, vms_open, "txt", NULL((void*)0), NULL((void*)0) }, | |||
| 421 | { "CoSine IPSX L2 capture", OPEN_INFO_HEURISTIC, cosine_open, "txt", NULL((void*)0), NULL((void*)0) }, | |||
| 422 | { "Bluetooth HCI dump", OPEN_INFO_HEURISTIC, hcidump_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 423 | { "TamoSoft CommView NCF", OPEN_INFO_HEURISTIC, commview_ncf_open, "ncf", NULL((void*)0), NULL((void*)0) }, | |||
| 424 | { "TamoSoft CommView NCFX", OPEN_INFO_HEURISTIC, commview_ncfx_open, "ncfx", NULL((void*)0), NULL((void*)0) }, | |||
| 425 | { "NetScaler", OPEN_INFO_HEURISTIC, nstrace_open, "cap", NULL((void*)0), NULL((void*)0) }, | |||
| 426 | { "Android Logcat Binary format", OPEN_INFO_HEURISTIC, logcat_open, "logcat", NULL((void*)0), NULL((void*)0) }, | |||
| 427 | { "Android Logcat Text formats", OPEN_INFO_HEURISTIC, logcat_text_open, "txt", NULL((void*)0), NULL((void*)0) }, | |||
| 428 | { "Candump log", OPEN_INFO_HEURISTIC, candump_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 429 | { "Busmaster log", OPEN_INFO_HEURISTIC, busmaster_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 430 | { "CSS Electronics CLX000 CAN log", OPEN_INFO_MAGIC, cllog_open, "txt", NULL((void*)0), NULL((void*)0) }, | |||
| 431 | { "Ericsson eNode-B raw log", OPEN_INFO_MAGIC, eri_enb_log_open, NULL((void*)0), NULL((void*)0), NULL((void*)0) }, | |||
| 432 | { "Systemd Journal", OPEN_INFO_HEURISTIC, systemd_journal_open, "log;jnl;journal", NULL((void*)0), NULL((void*)0) }, | |||
| 433 | { "PEAK CAN TRC log", OPEN_INFO_HEURISTIC, peak_trc_open, "trc", NULL((void*)0), NULL((void*)0) }, | |||
| 434 | ||||
| 435 | /* ASCII trace files from Telnet sessions. */ | |||
| 436 | { "Lucent/Ascend access server trace", OPEN_INFO_HEURISTIC, ascend_open, "txt", NULL((void*)0), NULL((void*)0) }, | |||
| 437 | { "Toshiba Compact ISDN Router snoop", OPEN_INFO_HEURISTIC, toshiba_open, "txt", NULL((void*)0), NULL((void*)0) }, | |||
| 438 | ||||
| 439 | { "EGNOS Message Server (EMS) file", OPEN_INFO_HEURISTIC, ems_open, "ems", NULL((void*)0), NULL((void*)0) }, | |||
| 440 | ||||
| 441 | /* Extremely weak heuristics - put them at the end. */ | |||
| 442 | { "Ixia IxVeriWave .vwr Raw Capture", OPEN_INFO_HEURISTIC, vwr_open, "vwr", NULL((void*)0), NULL((void*)0) }, | |||
| 443 | { "CAM Inspector file", OPEN_INFO_HEURISTIC, camins_open, "camins", NULL((void*)0), NULL((void*)0) }, | |||
| 444 | { "JavaScript Object Notation", OPEN_INFO_HEURISTIC, json_open, "json", NULL((void*)0), NULL((void*)0) }, | |||
| 445 | { "Ruby Marshal Object", OPEN_INFO_HEURISTIC, ruby_marshal_open, "", NULL((void*)0), NULL((void*)0) }, | |||
| 446 | { "3gpp phone log", OPEN_INFO_MAGIC, log3gpp_open, "log", NULL((void*)0), NULL((void*)0) }, | |||
| 447 | { "MP4 media file", OPEN_INFO_MAGIC, mp4_open, "mp4", NULL((void*)0), NULL((void*)0) }, | |||
| 448 | }; | |||
| 449 | ||||
| 450 | /* this is only used to build the dynamic array on load, do NOT use this | |||
| 451 | * for anything else, because the size of the actual array will change if | |||
| 452 | * Lua scripts register a new file reader. | |||
| 453 | */ | |||
| 454 | #define N_OPEN_INFO_ROUTINES(sizeof (open_info_base) / sizeof (open_info_base)[0]) array_length(open_info_base)(sizeof (open_info_base) / sizeof (open_info_base)[0]) | |||
| 455 | ||||
| 456 | static GArray *open_info_arr; | |||
| 457 | ||||
| 458 | /* this always points to the top of the created array */ | |||
| 459 | struct open_info *open_routines; | |||
| 460 | ||||
| 461 | /* this points to the first OPEN_INFO_HEURISTIC type in the array */ | |||
| 462 | static unsigned heuristic_open_routine_idx; | |||
| 463 | ||||
| 464 | static void | |||
| 465 | set_heuristic_routine(void) | |||
| 466 | { | |||
| 467 | unsigned i; | |||
| 468 | ws_assert(open_info_arr != NULL)do { if ((1) && !(open_info_arr != ((void*)0))) ws_log_fatal_full ("Wiretap", LOG_LEVEL_ERROR, "wiretap/file_access.c", 468, __func__ , "assertion failed: %s", "open_info_arr != ((void*)0)"); } while (0); | |||
| 469 | ||||
| 470 | for (i = 0; i < open_info_arr->len; i++) { | |||
| 471 | if (open_routines[i].type == OPEN_INFO_HEURISTIC) { | |||
| 472 | heuristic_open_routine_idx = i; | |||
| 473 | break; | |||
| 474 | } | |||
| 475 | /* sanity check */ | |||
| 476 | ws_assert(open_routines[i].type == OPEN_INFO_MAGIC)do { if ((1) && !(open_routines[i].type == OPEN_INFO_MAGIC )) ws_log_fatal_full("Wiretap", LOG_LEVEL_ERROR, "wiretap/file_access.c" , 476, __func__, "assertion failed: %s", "open_routines[i].type == OPEN_INFO_MAGIC" ); } while (0); | |||
| 477 | } | |||
| 478 | ||||
| 479 | ws_assert(heuristic_open_routine_idx > 0)do { if ((1) && !(heuristic_open_routine_idx > 0)) ws_log_fatal_full("Wiretap", LOG_LEVEL_ERROR, "wiretap/file_access.c" , 479, __func__, "assertion failed: %s", "heuristic_open_routine_idx > 0" ); } while (0); | |||
| 480 | } | |||
| 481 | ||||
| 482 | void | |||
| 483 | init_open_routines(void) | |||
| 484 | { | |||
| 485 | unsigned int i; | |||
| 486 | struct open_info *i_open; | |||
| 487 | ||||
| 488 | if (open_info_arr) | |||
| 489 | return; | |||
| 490 | ||||
| 491 | open_info_arr = g_array_new(true1,true1,sizeof(struct open_info)); | |||
| 492 | ||||
| 493 | g_array_append_vals(open_info_arr, open_info_base, N_OPEN_INFO_ROUTINES(sizeof (open_info_base) / sizeof (open_info_base)[0])); | |||
| 494 | ||||
| 495 | open_routines = (struct open_info *)(void*) open_info_arr->data; | |||
| 496 | ||||
| 497 | /* Populate the extensions_set list now */ | |||
| 498 | for (i = 0, i_open = open_routines; i < open_info_arr->len; i++, i_open++) { | |||
| 499 | if (i_open->extensions != NULL((void*)0)) | |||
| 500 | i_open->extensions_set = g_strsplit(i_open->extensions, ";", 0); | |||
| 501 | } | |||
| 502 | ||||
| 503 | set_heuristic_routine(); | |||
| 504 | } | |||
| 505 | ||||
| 506 | /* | |||
| 507 | * Registers a new file reader - currently only called by wslua code for | |||
| 508 | * Lua readers and by compiled file reader plugins. | |||
| 509 | * | |||
| 510 | * If first_routine is true, the reader added before other readers of its | |||
| 511 | * type (magic or heuristic). This should be done only in cases where | |||
| 512 | * this reader's open test must be performed early, to avoid false | |||
| 513 | * positives for other readers' tests treating files for this reader | |||
| 514 | * as being for another reader. | |||
| 515 | * | |||
| 516 | * XXX - given that there is no guarantee that registration routines will | |||
| 517 | * be called in a given order, all this really does is divide readers for | |||
| 518 | * a given type (magic or heuristic) into two categories, with open routines | |||
| 519 | * for readers in the first category (first_routine true) all being called | |||
| 520 | * before readers in the second category; it does not guarantee a particular | |||
| 521 | * total order for open routines. | |||
| 522 | * | |||
| 523 | * Checks for an existing reader of the same name and errors if it finds one; | |||
| 524 | * if you want to handle that condition more gracefully, call | |||
| 525 | * wtap_has_open_info() first. | |||
| 526 | */ | |||
| 527 | void | |||
| 528 | wtap_register_open_info(struct open_info *oi, const bool_Bool first_routine) | |||
| 529 | { | |||
| 530 | if (!oi || !oi->name) { | |||
| 531 | ws_error("No open_info name given to register")ws_log_fatal_full("Wiretap", LOG_LEVEL_ERROR, "wiretap/file_access.c" , 531, __func__, "No open_info name given to register"); | |||
| 532 | return; | |||
| 533 | } | |||
| 534 | ||||
| 535 | /* verify name doesn't already exist */ | |||
| 536 | if (wtap_has_open_info(oi->name)) { | |||
| 537 | ws_error("Name given to register_open_info already exists")ws_log_fatal_full("Wiretap", LOG_LEVEL_ERROR, "wiretap/file_access.c" , 537, __func__, "Name given to register_open_info already exists" ); | |||
| 538 | return; | |||
| 539 | } | |||
| 540 | ||||
| 541 | if (oi->extensions != NULL((void*)0)) | |||
| 542 | oi->extensions_set = g_strsplit(oi->extensions, ";", 0); | |||
| 543 | ||||
| 544 | /* if it's magic and first, prepend it; if it's heuristic and not first, | |||
| 545 | append it; if it's anything else, stick it in the middle */ | |||
| 546 | if (first_routine && oi->type == OPEN_INFO_MAGIC) { | |||
| 547 | g_array_prepend_val(open_info_arr, *oi)g_array_prepend_vals (open_info_arr, &(*oi), 1); | |||
| 548 | } else if (!first_routine && oi->type == OPEN_INFO_HEURISTIC) { | |||
| 549 | g_array_append_val(open_info_arr, *oi)g_array_append_vals (open_info_arr, &(*oi), 1); | |||
| 550 | } else { | |||
| 551 | g_array_insert_val(open_info_arr, heuristic_open_routine_idx, *oi)g_array_insert_vals (open_info_arr, heuristic_open_routine_idx , &(*oi), 1); | |||
| 552 | } | |||
| 553 | ||||
| 554 | open_routines = (struct open_info *)(void*) open_info_arr->data; | |||
| 555 | set_heuristic_routine(); | |||
| 556 | } | |||
| 557 | ||||
| 558 | /* De-registers a file reader by removing it from the GArray based on its name. | |||
| 559 | * This function must NOT be called during wtap_open_offline(), since it changes the array. | |||
| 560 | * Note: this function will error if it doesn't find the given name; if you want to handle | |||
| 561 | * that condition more gracefully, call wtap_has_open_info() first. | |||
| 562 | */ | |||
| 563 | void | |||
| 564 | wtap_deregister_open_info(const char *name) | |||
| 565 | { | |||
| 566 | unsigned i; | |||
| 567 | ||||
| 568 | if (!name) { | |||
| 569 | ws_error("Missing open_info name to de-register")ws_log_fatal_full("Wiretap", LOG_LEVEL_ERROR, "wiretap/file_access.c" , 569, __func__, "Missing open_info name to de-register"); | |||
| 570 | return; | |||
| 571 | } | |||
| 572 | ||||
| 573 | for (i = 0; i < open_info_arr->len; i++) { | |||
| 574 | if (open_routines[i].name && strcmp(open_routines[i].name, name) == 0) { | |||
| 575 | g_strfreev(open_routines[i].extensions_set); | |||
| 576 | open_info_arr = g_array_remove_index(open_info_arr, i); | |||
| 577 | set_heuristic_routine(); | |||
| 578 | return; | |||
| 579 | } | |||
| 580 | } | |||
| 581 | ||||
| 582 | ws_error("deregister_open_info: name not found")ws_log_fatal_full("Wiretap", LOG_LEVEL_ERROR, "wiretap/file_access.c" , 582, __func__, "deregister_open_info: name not found"); | |||
| 583 | } | |||
| 584 | ||||
| 585 | /* Determines if a open routine short name already exists | |||
| 586 | */ | |||
| 587 | bool_Bool | |||
| 588 | wtap_has_open_info(const char *name) | |||
| 589 | { | |||
| 590 | unsigned i; | |||
| 591 | ||||
| 592 | if (!name) { | |||
| 593 | ws_error("No name given to wtap_has_open_info!")ws_log_fatal_full("Wiretap", LOG_LEVEL_ERROR, "wiretap/file_access.c" , 593, __func__, "No name given to wtap_has_open_info!"); | |||
| 594 | return false0; | |||
| 595 | } | |||
| 596 | ||||
| 597 | ||||
| 598 | for (i = 0; i < open_info_arr->len; i++) { | |||
| 599 | if (open_routines[i].name && strcmp(open_routines[i].name, name) == 0) { | |||
| 600 | return true1; | |||
| 601 | } | |||
| 602 | } | |||
| 603 | ||||
| 604 | return false0; | |||
| 605 | } | |||
| 606 | ||||
| 607 | bool_Bool | |||
| 608 | wtap_uses_lua_filehandler(const wtap* wth) | |||
| 609 | { | |||
| 610 | if (wth && wth->wslua_data != NULL((void*)0)) { | |||
| 611 | /* | |||
| 612 | * Currently, wslua_data is set if and only if using a Lua | |||
| 613 | * file handler. | |||
| 614 | */ | |||
| 615 | return true1; | |||
| 616 | } | |||
| 617 | ||||
| 618 | return false0; | |||
| 619 | } | |||
| 620 | ||||
| 621 | /* | |||
| 622 | * Visual C++ on Win32 systems doesn't define these. (Old UNIX systems don't | |||
| 623 | * define them either.) | |||
| 624 | * | |||
| 625 | * Visual C++ on Win32 systems doesn't define S_IFIFO, it defines _S_IFIFO. | |||
| 626 | */ | |||
| 627 | #ifndef S_ISREG | |||
| 628 | #define S_ISREG(mode)((((mode)) & 0170000) == (0100000)) (((mode) & S_IFMT0170000) == S_IFREG0100000) | |||
| 629 | #endif | |||
| 630 | #ifndef S_IFIFO0010000 | |||
| 631 | #define S_IFIFO0010000 _S_IFIFO | |||
| 632 | #endif | |||
| 633 | #ifndef S_ISFIFO | |||
| 634 | #define S_ISFIFO(mode)((((mode)) & 0170000) == (0010000)) (((mode) & S_IFMT0170000) == S_IFIFO0010000) | |||
| 635 | #endif | |||
| 636 | #ifndef S_ISDIR | |||
| 637 | #define S_ISDIR(mode)((((mode)) & 0170000) == (0040000)) (((mode) & S_IFMT0170000) == S_IFDIR0040000) | |||
| 638 | #endif | |||
| 639 | ||||
| 640 | /* returns the 'type' number to use for wtap_open_offline based on the | |||
| 641 | * passed-in name (the name in the open_info struct). It returns WTAP_TYPE_AUTO | |||
| 642 | * on failure, which is the number 0. The 'type' number is the entry's index+1, | |||
| 643 | * because that's what wtap_open_offline() expects it to be. | |||
| 644 | */ | |||
| 645 | unsigned int | |||
| 646 | open_info_name_to_type(const char *name) | |||
| 647 | { | |||
| 648 | unsigned int i; | |||
| 649 | ||||
| 650 | if (!name) | |||
| 651 | return WTAP_TYPE_AUTO0; | |||
| 652 | ||||
| 653 | for (i = 0; i < open_info_arr->len; i++) { | |||
| 654 | if (open_routines[i].name != NULL((void*)0) && | |||
| 655 | strcmp(name, open_routines[i].name) == 0) | |||
| 656 | return i+1; | |||
| 657 | } | |||
| 658 | ||||
| 659 | return WTAP_TYPE_AUTO0; /* no such file type */ | |||
| 660 | } | |||
| 661 | ||||
| 662 | static char * | |||
| 663 | get_file_extension(const char *pathname) | |||
| 664 | { | |||
| 665 | char *filename; | |||
| 666 | char **components; | |||
| 667 | size_t ncomponents; | |||
| 668 | char *extensionp; | |||
| 669 | ||||
| 670 | /* | |||
| 671 | * Is the pathname empty? | |||
| 672 | */ | |||
| 673 | if (strcmp(pathname, "") == 0) | |||
| 674 | return NULL((void*)0); /* no extension */ | |||
| 675 | ||||
| 676 | /* | |||
| 677 | * Find the last component of the pathname. | |||
| 678 | */ | |||
| 679 | filename = g_path_get_basename(pathname); | |||
| 680 | ||||
| 681 | /* | |||
| 682 | * Does it have an extension? | |||
| 683 | */ | |||
| 684 | if (strchr(filename, '.') == NULL((void*)0)) { | |||
| 685 | g_free(filename); | |||
| 686 | return NULL((void*)0); /* no extension whatsoever */ | |||
| 687 | } | |||
| 688 | ||||
| 689 | /* | |||
| 690 | * Yes. Fold it to lowercase, since open_routines[] has | |||
| 691 | * its extensions in lowercase. | |||
| 692 | */ | |||
| 693 | ascii_strdown_inplace(filename); | |||
| 694 | ||||
| 695 | /* | |||
| 696 | * Split it into components separated by ".". | |||
| 697 | */ | |||
| 698 | components = g_strsplit(filename, ".", 0); | |||
| 699 | g_free(filename); | |||
| 700 | ||||
| 701 | /* | |||
| 702 | * Count the components. | |||
| 703 | */ | |||
| 704 | for (ncomponents = 0; components[ncomponents] != NULL((void*)0); ncomponents++) | |||
| 705 | ; | |||
| 706 | ||||
| 707 | if (ncomponents == 0) { | |||
| 708 | g_strfreev(components); | |||
| 709 | return NULL((void*)0); /* no components */ | |||
| 710 | } | |||
| 711 | if (ncomponents == 1) { | |||
| 712 | g_strfreev(components); | |||
| 713 | return NULL((void*)0); /* only one component, with no "." */ | |||
| 714 | } | |||
| 715 | ||||
| 716 | /* | |||
| 717 | * Get compression-type extensions, if any. | |||
| 718 | */ | |||
| 719 | GSList *compression_type_extensions = wtap_get_all_compression_type_extensions_list(); | |||
| 720 | ||||
| 721 | /* | |||
| 722 | * Is the last component one of the extensions used for compressed | |||
| 723 | * files? | |||
| 724 | */ | |||
| 725 | extensionp = components[ncomponents - 1]; | |||
| 726 | for (GSList *compression_type_extension = compression_type_extensions; | |||
| 727 | compression_type_extension != NULL((void*)0); | |||
| 728 | compression_type_extension = g_slist_next(compression_type_extension)((compression_type_extension) ? (((GSList *)(compression_type_extension ))->next) : ((void*)0))) { | |||
| 729 | if (strcmp(extensionp, (const char *)compression_type_extension->data) == 0) { | |||
| 730 | /* | |||
| 731 | * Yes, so it's one of the compressed-file extensions. | |||
| 732 | * Is there an extension before that? | |||
| 733 | */ | |||
| 734 | if (ncomponents == 2) { | |||
| 735 | g_slist_free(compression_type_extensions); | |||
| 736 | g_strfreev(components); | |||
| 737 | return NULL((void*)0); /* no, only two components */ | |||
| 738 | } | |||
| 739 | ||||
| 740 | /* | |||
| 741 | * Yes, return that extension. | |||
| 742 | */ | |||
| 743 | g_slist_free(compression_type_extensions); | |||
| 744 | extensionp = g_strdup(components[ncomponents - 2])g_strdup_inline (components[ncomponents - 2]); | |||
| 745 | g_strfreev(components); | |||
| 746 | return extensionp; | |||
| 747 | } | |||
| 748 | } | |||
| 749 | ||||
| 750 | g_slist_free(compression_type_extensions); | |||
| 751 | ||||
| 752 | /* | |||
| 753 | * The extension isn't one of the compressed-file extensions; | |||
| 754 | * return it. | |||
| 755 | */ | |||
| 756 | extensionp = g_strdup(extensionp)g_strdup_inline (extensionp); | |||
| 757 | g_strfreev(components); | |||
| 758 | return extensionp; | |||
| 759 | } | |||
| 760 | ||||
| 761 | /* | |||
| 762 | * Check if file extension is used in this heuristic | |||
| 763 | */ | |||
| 764 | static bool_Bool | |||
| 765 | heuristic_uses_extension(unsigned int i, const char *extension) | |||
| 766 | { | |||
| 767 | char **extensionp; | |||
| 768 | ||||
| 769 | /* | |||
| 770 | * Does this file type *have* any extensions? | |||
| 771 | */ | |||
| 772 | if (open_routines[i].extensions == NULL((void*)0)) | |||
| 773 | return false0; /* no */ | |||
| 774 | ||||
| 775 | /* | |||
| 776 | * Check each of them against the specified extension. | |||
| 777 | */ | |||
| 778 | for (extensionp = open_routines[i].extensions_set; *extensionp != NULL((void*)0); | |||
| 779 | extensionp++) { | |||
| 780 | if (strcmp(extension, *extensionp) == 0) { | |||
| 781 | return true1; /* it's one of them */ | |||
| 782 | } | |||
| 783 | } | |||
| 784 | ||||
| 785 | return false0; /* it's not one of them */ | |||
| 786 | } | |||
| 787 | ||||
| 788 | /* | |||
| 789 | * Attempt to open the file corresponding to "wth" using the file format | |||
| 790 | * handler in "candidate". | |||
| 791 | * | |||
| 792 | * Returns WTAP_OPEN_MINE upon success, WTAP_OPEN_NOT_MINE if the file is not | |||
| 793 | * in a suitable format for "candidate", or WTAP_OPEN_ERROR if a failure | |||
| 794 | * occurred while reading the input. | |||
| 795 | */ | |||
| 796 | static int | |||
| 797 | try_one_open(wtap *wth, const struct open_info *candidate, int *err, char **err_info) | |||
| 798 | { | |||
| 799 | /* Seek back to the beginning of the file; the open routine for the | |||
| 800 | * previous file type may have left the file position somewhere other | |||
| 801 | * than the beginning, and the open routine for this file type will | |||
| 802 | * probably want to start reading at the beginning. | |||
| 803 | * | |||
| 804 | * Initialize the data offset while we're at it. | |||
| 805 | */ | |||
| 806 | if (file_seek(wth->fh, 0, SEEK_SET0, err) == -1) { | |||
| 807 | /* Error - give up */ | |||
| 808 | return WTAP_OPEN_ERROR; | |||
| 809 | } | |||
| 810 | ||||
| 811 | /* Set wth with wslua data if any - this is how we pass the data to the | |||
| 812 | * file reader, kinda like the priv member but not free'd later. | |||
| 813 | * It's ok for this to copy a NULL. | |||
| 814 | */ | |||
| 815 | wth->wslua_data = candidate->wslua_data; | |||
| 816 | ||||
| 817 | return candidate->open_routine(wth, err, err_info); | |||
| 818 | } | |||
| 819 | ||||
| 820 | /* | |||
| 821 | * Attempt to open the file corresponding to "wth". If "type" is supplied | |||
| 822 | * (i.e. other than WTAP_TYPE_AUTO), that will be the only type attempted. | |||
| 823 | * Otherwise, heuristic detection of the file format will be performed, | |||
| 824 | * possibly guided by the extension part of "filename". | |||
| 825 | * | |||
| 826 | * Returns WTAP_OPEN_MINE upon success, WTAP_OPEN_NOT_MINE if it was not | |||
| 827 | * possible to determine a suitable format for the file, or WTAP_OPEN_ERROR if | |||
| 828 | * a failure occurred while reading the input. | |||
| 829 | */ | |||
| 830 | static int | |||
| 831 | try_open(wtap *wth, unsigned int type, int *err, char **err_info) | |||
| 832 | { | |||
| 833 | int result = WTAP_OPEN_NOT_MINE; | |||
| 834 | unsigned i; | |||
| 835 | char *extension; | |||
| 836 | ||||
| 837 | /* 'type' is 1-based. */ | |||
| 838 | if (type != WTAP_TYPE_AUTO0 && type <= open_info_arr->len) { | |||
| 839 | /* Try only the specified type. */ | |||
| 840 | return try_one_open(wth, &open_routines[type - 1], err, err_info); | |||
| 841 | } | |||
| 842 | ||||
| 843 | /* First, all file types that support magic numbers. */ | |||
| 844 | for (i = 0; i < heuristic_open_routine_idx && result == WTAP_OPEN_NOT_MINE; i++) { | |||
| 845 | result = try_one_open(wth, &open_routines[i], err, err_info); | |||
| 846 | } | |||
| 847 | ||||
| 848 | if (result != WTAP_OPEN_NOT_MINE) { | |||
| 849 | return result; | |||
| 850 | } | |||
| 851 | ||||
| 852 | /* Does this file's name have an extension? */ | |||
| 853 | extension = get_file_extension(wth->pathname); | |||
| 854 | if (extension != NULL((void*)0)) { | |||
| 855 | unsigned pass; | |||
| 856 | ||||
| 857 | /* | |||
| 858 | * Yes, the filename has an extension. | |||
| 859 | * | |||
| 860 | * The heuristic types fall into one of three categories, which | |||
| 861 | * we attempt in order by scanning for each category in turn. | |||
| 862 | * | |||
| 863 | * First pass selects the heuristic types that list this file's | |||
| 864 | * extension, as these are most likely to be the correct choice | |||
| 865 | * for this file. | |||
| 866 | * | |||
| 867 | * Second pass selects heuristic types which have no | |||
| 868 | * extensions. We try those before the ones that have | |||
| 869 | * extensions that *don't* match this file's extension, on the | |||
| 870 | * theory that files of those types generally have one of the | |||
| 871 | * type's extensions, and, as this file *doesn't* have one of | |||
| 872 | * those extensions, it's probably *not* one of those files. | |||
| 873 | * | |||
| 874 | * Third pass selects heuristic types which support extensions | |||
| 875 | * but where none of them matches this file's extension. | |||
| 876 | * | |||
| 877 | * We need only continue searching until we find a match or an | |||
| 878 | * error occurs. | |||
| 879 | */ | |||
| 880 | ||||
| 881 | for (pass = 0; pass < 3 && result == WTAP_OPEN_NOT_MINE; pass++) { | |||
| 882 | for (i = heuristic_open_routine_idx; i < open_info_arr->len && result == WTAP_OPEN_NOT_MINE; i++) { | |||
| 883 | if ( (pass == 0 && heuristic_uses_extension(i, extension)) | |||
| 884 | || (pass == 1 && open_routines[i].extensions == NULL((void*)0)) | |||
| 885 | || (pass == 2 && open_routines[i].extensions != NULL((void*)0) | |||
| 886 | && !heuristic_uses_extension(i, extension))) { | |||
| 887 | result = try_one_open(wth, &open_routines[i], err, err_info); | |||
| 888 | } | |||
| 889 | } | |||
| 890 | } | |||
| 891 | ||||
| 892 | g_free(extension); | |||
| 893 | } else { | |||
| 894 | /* No extension. Try all the heuristic types in order. */ | |||
| 895 | for (i = heuristic_open_routine_idx; i < open_info_arr->len && result == WTAP_OPEN_NOT_MINE; i++) { | |||
| 896 | result = try_one_open(wth, &open_routines[i], err, err_info); | |||
| 897 | } | |||
| 898 | } | |||
| 899 | ||||
| 900 | return result; | |||
| 901 | } | |||
| 902 | ||||
| 903 | /* Opens a file and prepares a wtap struct. | |||
| 904 | * If "do_random" is true, it opens the file twice; the second open | |||
| 905 | * allows the application to do random-access I/O without moving | |||
| 906 | * the seek offset for sequential I/O, which is used by Wireshark | |||
| 907 | * so that it can do sequential I/O to a capture file that's being | |||
| 908 | * written to as new packets arrive independently of random I/O done | |||
| 909 | * to display protocol trees for packets when they're selected. | |||
| 910 | */ | |||
| 911 | wtap * | |||
| 912 | wtap_open_offline(const char *filename, unsigned int type, int *err, char **err_info, | |||
| 913 | bool_Bool do_random) | |||
| 914 | { | |||
| 915 | int fd; | |||
| 916 | ws_statb64struct stat statb; | |||
| 917 | bool_Bool ispipe = false0; | |||
| 918 | wtap *wth; | |||
| 919 | bool_Bool use_stdin = false0; | |||
| 920 | wtap_block_t shb; | |||
| 921 | ||||
| 922 | *err = 0; | |||
| 923 | *err_info = NULL((void*)0); | |||
| 924 | ||||
| 925 | /* open standard input if filename is '-' */ | |||
| 926 | if (strcmp(filename, "-") == 0) | |||
| 927 | use_stdin = true1; | |||
| 928 | ||||
| 929 | /* First, make sure the file is valid */ | |||
| 930 | if (use_stdin) { | |||
| 931 | if (ws_fstat64fstat(0, &statb) < 0) { | |||
| 932 | *err = errno(*__errno_location ()); | |||
| 933 | return NULL((void*)0); | |||
| 934 | } | |||
| 935 | } else { | |||
| 936 | if (ws_stat64stat(filename, &statb) < 0) { | |||
| 937 | *err = errno(*__errno_location ()); | |||
| 938 | return NULL((void*)0); | |||
| 939 | } | |||
| 940 | } | |||
| 941 | if (S_ISFIFO(statb.st_mode)((((statb.st_mode)) & 0170000) == (0010000))) { | |||
| 942 | /* | |||
| 943 | * Opens of FIFOs are allowed only when not opening | |||
| 944 | * for random access. | |||
| 945 | * | |||
| 946 | * Currently, we do seeking when trying to find out | |||
| 947 | * the file type, but our I/O routines do some amount | |||
| 948 | * of buffering, and do backward seeks within the buffer | |||
| 949 | * if possible, so at least some file types can be | |||
| 950 | * opened from pipes, so we don't completely disallow opens | |||
| 951 | * of pipes. | |||
| 952 | */ | |||
| 953 | if (do_random) { | |||
| 954 | *err = WTAP_ERR_RANDOM_OPEN_PIPE-2; | |||
| 955 | return NULL((void*)0); | |||
| 956 | } | |||
| 957 | ispipe = true1; | |||
| 958 | } else if (S_ISDIR(statb.st_mode)((((statb.st_mode)) & 0170000) == (0040000))) { | |||
| 959 | /* | |||
| 960 | * Return different errors for "this is a directory" | |||
| 961 | * and "this is some random special file type", so | |||
| 962 | * the user can get a potentially more helpful error. | |||
| 963 | */ | |||
| 964 | *err = EISDIR21; | |||
| 965 | return NULL((void*)0); | |||
| 966 | } else if (! S_ISREG(statb.st_mode)((((statb.st_mode)) & 0170000) == (0100000))) { | |||
| 967 | *err = WTAP_ERR_NOT_REGULAR_FILE-1; | |||
| 968 | return NULL((void*)0); | |||
| 969 | } | |||
| 970 | ||||
| 971 | /* | |||
| 972 | * We need two independent descriptors for random access, so | |||
| 973 | * they have different file positions. If we're opening the | |||
| 974 | * standard input, we can only dup it to get additional | |||
| 975 | * descriptors, so we can't have two independent descriptors, | |||
| 976 | * and thus can't do random access. | |||
| 977 | */ | |||
| 978 | if (use_stdin && do_random) { | |||
| 979 | *err = WTAP_ERR_RANDOM_OPEN_STDIN-16; | |||
| 980 | return NULL((void*)0); | |||
| 981 | } | |||
| 982 | ||||
| 983 | errno(*__errno_location ()) = ENOMEM12; | |||
| 984 | wth = g_new0(wtap, 1)((wtap *) g_malloc0_n ((1), sizeof (wtap))); | |||
| 985 | ||||
| 986 | /* Open the file */ | |||
| 987 | errno(*__errno_location ()) = WTAP_ERR_CANT_OPEN-6; | |||
| 988 | if (use_stdin) { | |||
| 989 | /* | |||
| 990 | * We dup FD 0, so that we don't have to worry about | |||
| 991 | * a file_close of wth->fh closing the standard | |||
| 992 | * input of the process. | |||
| 993 | */ | |||
| 994 | fd = ws_dupdup(0); | |||
| 995 | if (fd < 0) { | |||
| 996 | *err = errno(*__errno_location ()); | |||
| 997 | g_free(wth); | |||
| 998 | return NULL((void*)0); | |||
| 999 | } | |||
| 1000 | #ifdef _WIN32 | |||
| 1001 | if (_setmode(fd, O_BINARY0) == -1) { | |||
| 1002 | /* "Shouldn't happen" */ | |||
| 1003 | *err = errno(*__errno_location ()); | |||
| 1004 | g_free(wth); | |||
| 1005 | return NULL((void*)0); | |||
| 1006 | } | |||
| 1007 | #endif | |||
| 1008 | if (!(wth->fh = file_fdopen(fd))) { | |||
| 1009 | *err = errno(*__errno_location ()); | |||
| 1010 | ws_closeclose(fd); | |||
| 1011 | g_free(wth); | |||
| 1012 | return NULL((void*)0); | |||
| 1013 | } | |||
| 1014 | } else { | |||
| 1015 | if (!(wth->fh = file_open(filename))) { | |||
| 1016 | *err = errno(*__errno_location ()); | |||
| 1017 | g_free(wth); | |||
| 1018 | return NULL((void*)0); | |||
| 1019 | } | |||
| 1020 | } | |||
| 1021 | ||||
| 1022 | if (do_random) { | |||
| 1023 | if (!(wth->random_fh = file_open(filename))) { | |||
| 1024 | *err = errno(*__errno_location ()); | |||
| 1025 | file_close(wth->fh); | |||
| 1026 | g_free(wth); | |||
| 1027 | return NULL((void*)0); | |||
| 1028 | } | |||
| 1029 | } else | |||
| 1030 | wth->random_fh = NULL((void*)0); | |||
| 1031 | ||||
| 1032 | /* initialization */ | |||
| 1033 | wth->ispipe = ispipe; | |||
| 1034 | wth->file_encap = WTAP_ENCAP_UNKNOWN0; | |||
| 1035 | wth->subtype_sequential_close = NULL((void*)0); | |||
| 1036 | wth->subtype_close = NULL((void*)0); | |||
| 1037 | wth->file_tsprec = WTAP_TSPREC_USEC6; | |||
| 1038 | wth->pathname = g_strdup(filename)g_strdup_inline (filename); | |||
| 1039 | wth->priv = NULL((void*)0); | |||
| 1040 | wth->wslua_data = NULL((void*)0); | |||
| 1041 | wth->shb_hdrs = g_array_new(false0, false0, sizeof(wtap_block_t)); | |||
| 1042 | shb = wtap_block_create(WTAP_BLOCK_SECTION); | |||
| 1043 | if (shb) | |||
| 1044 | g_array_append_val(wth->shb_hdrs, shb)g_array_append_vals (wth->shb_hdrs, &(shb), 1); | |||
| 1045 | ||||
| 1046 | /* Initialize the array containing a list of interfaces. pcapng_open and | |||
| 1047 | * erf_open needs this (and libpcap_open for ERF encapsulation types). | |||
| 1048 | * Always initing it here saves checking for a NULL ptr later. */ | |||
| 1049 | wth->interface_data = g_array_new(false0, false0, sizeof(wtap_block_t)); | |||
| 1050 | /* | |||
| 1051 | * Next interface data that wtap_get_next_interface_description() | |||
| 1052 | * will return. | |||
| 1053 | */ | |||
| 1054 | wth->next_interface_data = 0; | |||
| 1055 | ||||
| 1056 | wth->shb_iface_to_global = g_array_new(false0, false0, sizeof(unsigned)); | |||
| 1057 | g_array_append_val(wth->shb_iface_to_global, wth->interface_data->len)g_array_append_vals (wth->shb_iface_to_global, &(wth-> interface_data->len), 1); | |||
| 1058 | ||||
| 1059 | if (wth->random_fh) { | |||
| 1060 | wth->fast_seek = g_ptr_array_new(); | |||
| 1061 | ||||
| 1062 | file_set_random_access(wth->fh, false0, wth->fast_seek); | |||
| 1063 | file_set_random_access(wth->random_fh, true1, wth->fast_seek); | |||
| 1064 | } | |||
| 1065 | ||||
| 1066 | /* Find a file format handler which can read the file. */ | |||
| 1067 | switch (try_open(wth, type, err, err_info)) { | |||
| 1068 | case WTAP_OPEN_NOT_MINE: | |||
| 1069 | /* Well, it's not one of the types of file we know about. */ | |||
| 1070 | *err = WTAP_ERR_FILE_UNKNOWN_FORMAT-3; | |||
| 1071 | /* FALLTHROUGH */ | |||
| 1072 | ||||
| 1073 | case WTAP_OPEN_ERROR: | |||
| 1074 | wtap_close(wth); | |||
| 1075 | wth = NULL((void*)0); | |||
| 1076 | } | |||
| 1077 | ||||
| 1078 | return wth; | |||
| 1079 | } | |||
| 1080 | ||||
| 1081 | /* | |||
| 1082 | * Given the pathname of the file we just closed with wtap_fdclose(), attempt | |||
| 1083 | * to reopen that file and assign the new file descriptor(s) to the sequential | |||
| 1084 | * stream and, if do_random is true, to the random stream. Used on Windows | |||
| 1085 | * after the rename of a file we had open was done or if the rename of a | |||
| 1086 | * file on top of a file we had open failed. | |||
| 1087 | * | |||
| 1088 | * This is only required by Wireshark, not TShark, and, at the point that | |||
| 1089 | * Wireshark is doing this, the sequential stream is closed, and the | |||
| 1090 | * random stream is open, so this refuses to open pipes, and only | |||
| 1091 | * reopens the random stream. | |||
| 1092 | */ | |||
| 1093 | bool_Bool | |||
| 1094 | wtap_fdreopen(wtap *wth, const char *filename, int *err) | |||
| 1095 | { | |||
| 1096 | ws_statb64struct stat statb; | |||
| 1097 | ||||
| 1098 | /* | |||
| 1099 | * We need two independent descriptors for random access, so | |||
| 1100 | * they have different file positions. If we're opening the | |||
| 1101 | * standard input, we can only dup it to get additional | |||
| 1102 | * descriptors, so we can't have two independent descriptors, | |||
| 1103 | * and thus can't do random access. | |||
| 1104 | */ | |||
| 1105 | if (strcmp(filename, "-") == 0) { | |||
| 1106 | *err = WTAP_ERR_RANDOM_OPEN_STDIN-16; | |||
| 1107 | return false0; | |||
| 1108 | } | |||
| 1109 | ||||
| 1110 | /* First, make sure the file is valid */ | |||
| 1111 | if (ws_stat64stat(filename, &statb) < 0) { | |||
| 1112 | *err = errno(*__errno_location ()); | |||
| 1113 | return false0; | |||
| 1114 | } | |||
| 1115 | if (S_ISFIFO(statb.st_mode)((((statb.st_mode)) & 0170000) == (0010000))) { | |||
| 1116 | /* | |||
| 1117 | * Opens of FIFOs are not allowed; see above. | |||
| 1118 | */ | |||
| 1119 | *err = WTAP_ERR_RANDOM_OPEN_PIPE-2; | |||
| 1120 | return false0; | |||
| 1121 | } else if (S_ISDIR(statb.st_mode)((((statb.st_mode)) & 0170000) == (0040000))) { | |||
| 1122 | /* | |||
| 1123 | * Return different errors for "this is a directory" | |||
| 1124 | * and "this is some random special file type", so | |||
| 1125 | * the user can get a potentially more helpful error. | |||
| 1126 | */ | |||
| 1127 | *err = EISDIR21; | |||
| 1128 | return false0; | |||
| 1129 | } else if (! S_ISREG(statb.st_mode)((((statb.st_mode)) & 0170000) == (0100000))) { | |||
| 1130 | *err = WTAP_ERR_NOT_REGULAR_FILE-1; | |||
| 1131 | return false0; | |||
| 1132 | } | |||
| 1133 | ||||
| 1134 | /* Open the file */ | |||
| 1135 | errno(*__errno_location ()) = WTAP_ERR_CANT_OPEN-6; | |||
| 1136 | if (!file_fdreopen(wth->random_fh, filename)) { | |||
| 1137 | *err = errno(*__errno_location ()); | |||
| 1138 | return false0; | |||
| 1139 | } | |||
| 1140 | if (strcmp(filename, wth->pathname) != 0) { | |||
| 1141 | g_free(wth->pathname); | |||
| 1142 | wth->pathname = g_strdup(filename)g_strdup_inline (filename); | |||
| 1143 | } | |||
| 1144 | return true1; | |||
| 1145 | } | |||
| 1146 | ||||
| 1147 | /* Table of the file types and subtypes for which we have support. */ | |||
| 1148 | ||||
| 1149 | /* | |||
| 1150 | * Pointer to the GArray holding the registered file types. | |||
| 1151 | */ | |||
| 1152 | static GArray* file_type_subtype_table_arr; | |||
| 1153 | ||||
| 1154 | /* | |||
| 1155 | * Pointer to the table of registered file types in that GArray. | |||
| 1156 | */ | |||
| 1157 | static const struct file_type_subtype_info* file_type_subtype_table; | |||
| 1158 | ||||
| 1159 | /* | |||
| 1160 | * Number of elements in the table for builtin file types/subtypes. | |||
| 1161 | */ | |||
| 1162 | static unsigned wtap_num_builtin_file_types_subtypes; | |||
| 1163 | ||||
| 1164 | /* | |||
| 1165 | * Required builtin types. | |||
| 1166 | */ | |||
| 1167 | int pcap_file_type_subtype = -1; | |||
| 1168 | int pcap_nsec_file_type_subtype = -1; | |||
| 1169 | int pcapng_file_type_subtype = -1; | |||
| 1170 | ||||
| 1171 | /* | |||
| 1172 | * Table for mapping old file type/subtype names to new ones for | |||
| 1173 | * backwards compatibility. | |||
| 1174 | */ | |||
| 1175 | static GHashTable *type_subtype_name_map; | |||
| 1176 | ||||
| 1177 | /* | |||
| 1178 | * Initialize the table of file types/subtypes with all the builtin | |||
| 1179 | * types/subtypes. | |||
| 1180 | */ | |||
| 1181 | void | |||
| 1182 | wtap_init_file_type_subtypes(void) | |||
| 1183 | { | |||
| 1184 | /* Don't do this twice. */ | |||
| 1185 | ws_assert(file_type_subtype_table_arr == NULL)do { if ((1) && !(file_type_subtype_table_arr == ((void *)0))) ws_log_fatal_full("Wiretap", LOG_LEVEL_ERROR, "wiretap/file_access.c" , 1185, __func__, "assertion failed: %s", "file_type_subtype_table_arr == ((void*)0)" ); } while (0); | |||
| 1186 | ||||
| 1187 | /* | |||
| 1188 | * Estimate the number of file types/subtypes as twice the | |||
| 1189 | * number of modules; that's probably an overestimate, as | |||
| 1190 | * the average number of file types/subtypes registered by | |||
| 1191 | * a module is > 1 but probably < 2, but that shouldn't | |||
| 1192 | * waste too much memory. | |||
| 1193 | * | |||
| 1194 | * Add on 7 more for pcapng, pcap, nanosecond pcap, and the | |||
| 1195 | * extra modified flavors of pcap. | |||
| 1196 | */ | |||
| 1197 | file_type_subtype_table_arr = g_array_sized_new(false0, true1, | |||
| 1198 | sizeof(struct file_type_subtype_info), wtap_module_count*2 + 7); | |||
| 1199 | file_type_subtype_table = (const struct file_type_subtype_info*)(void *)file_type_subtype_table_arr->data; | |||
| 1200 | ||||
| 1201 | /* | |||
| 1202 | * Initialize the hash table for mapping old file type/subtype | |||
| 1203 | * names to the corresponding new names. | |||
| 1204 | */ | |||
| 1205 | type_subtype_name_map = g_hash_table_new_full(g_str_hash, | |||
| 1206 | g_str_equal, g_free, g_free); | |||
| 1207 | ||||
| 1208 | /* No entries yet, so no builtin entries yet. */ | |||
| 1209 | wtap_num_builtin_file_types_subtypes = 0; | |||
| 1210 | ||||
| 1211 | /* | |||
| 1212 | * Register the builtin entries that aren't in the table. | |||
| 1213 | * First, do the required ones; register pcapng first, then | |||
| 1214 | * pcap, so, at the beginning of the table, we have pcapng, | |||
| 1215 | * pcap, nanosecond pcap, and the weird modified pcaps, so | |||
| 1216 | * searches for file types that can write a file format | |||
| 1217 | * start with pcapng, pcap, and nanosecond pcap. | |||
| 1218 | */ | |||
| 1219 | register_pcapng(); | |||
| 1220 | register_pcap(); | |||
| 1221 | ||||
| 1222 | /* Now register the ones found by the build process */ | |||
| 1223 | for (unsigned i = 0; i < wtap_module_count; i++) | |||
| 1224 | wtap_module_reg[i].cb_func(); | |||
| 1225 | ||||
| 1226 | /* Update the number of builtin entries. */ | |||
| 1227 | wtap_num_builtin_file_types_subtypes = file_type_subtype_table_arr->len; | |||
| 1228 | } | |||
| 1229 | ||||
| 1230 | /* | |||
| 1231 | * Attempt to register a new file type/subtype; fails if a type/subtype | |||
| 1232 | * with that name is already registered. | |||
| 1233 | */ | |||
| 1234 | int | |||
| 1235 | wtap_register_file_type_subtype(const struct file_type_subtype_info* fi) | |||
| 1236 | { | |||
| 1237 | struct file_type_subtype_info* finfo; | |||
| 1238 | unsigned file_type_subtype; | |||
| 1239 | ||||
| 1240 | /* | |||
| 1241 | * Check for required fields (description and name). | |||
| 1242 | */ | |||
| 1243 | if (!fi || !fi->description || !fi->name) { | |||
| 1244 | ws_warning("no file type info")do { if (1) { ws_log_full("Wiretap", LOG_LEVEL_WARNING, "wiretap/file_access.c" , 1244, __func__, "no file type info"); } } while (0); | |||
| 1245 | return -1; | |||
| 1246 | } | |||
| 1247 | ||||
| 1248 | /* | |||
| 1249 | * There must be at least one block type that this file | |||
| 1250 | * type/subtype supports. | |||
| 1251 | */ | |||
| 1252 | if (fi->num_supported_blocks == 0 || fi->supported_blocks == NULL((void*)0)) { | |||
| 1253 | ws_warning("no blocks supported by file type \"%s\"", fi->name)do { if (1) { ws_log_full("Wiretap", LOG_LEVEL_WARNING, "wiretap/file_access.c" , 1253, __func__, "no blocks supported by file type \"%s\"", fi ->name); } } while (0); | |||
| 1254 | return -1; | |||
| 1255 | } | |||
| 1256 | ||||
| 1257 | /* | |||
| 1258 | * Is this type already registered? | |||
| 1259 | */ | |||
| 1260 | if (wtap_name_to_file_type_subtype(fi->name) != -1) { | |||
| 1261 | /* | |||
| 1262 | * Yes. You don't get to replace an existing handler. | |||
| 1263 | */ | |||
| 1264 | ws_warning("file type \"%s\" is already registered", fi->name)do { if (1) { ws_log_full("Wiretap", LOG_LEVEL_WARNING, "wiretap/file_access.c" , 1264, __func__, "file type \"%s\" is already registered", fi ->name); } } while (0); | |||
| 1265 | return -1; | |||
| 1266 | } | |||
| 1267 | ||||
| 1268 | /* | |||
| 1269 | * Is there a freed entry in the array, due to a file type | |||
| 1270 | * being de-registered? | |||
| 1271 | * | |||
| 1272 | * Skip the built-in entries, as they're never deregistered. | |||
| 1273 | */ | |||
| 1274 | for (file_type_subtype = wtap_num_builtin_file_types_subtypes; | |||
| 1275 | file_type_subtype < file_type_subtype_table_arr->len; | |||
| 1276 | file_type_subtype++) { | |||
| 1277 | if (file_type_subtype_table[file_type_subtype].name == NULL((void*)0)) { | |||
| 1278 | /* | |||
| 1279 | * We found such an entry. | |||
| 1280 | * | |||
| 1281 | * Get the pointer from the GArray, so that we get a | |||
| 1282 | * non-const pointer. | |||
| 1283 | */ | |||
| 1284 | finfo = &g_array_index(file_type_subtype_table_arr, struct file_type_subtype_info, file_type_subtype)(((struct file_type_subtype_info*) (void *) (file_type_subtype_table_arr )->data) [(file_type_subtype)]); | |||
| 1285 | ||||
| 1286 | /* | |||
| 1287 | * Fill in the entry with the new values. | |||
| 1288 | */ | |||
| 1289 | *finfo = *fi; | |||
| 1290 | ||||
| 1291 | return (int)file_type_subtype; | |||
| 1292 | } | |||
| 1293 | } | |||
| 1294 | ||||
| 1295 | /* | |||
| 1296 | * There aren't any free slots, so add a new entry. | |||
| 1297 | * Get the number of current number of entries, which will | |||
| 1298 | * be the index of the new entry, then append this entry | |||
| 1299 | * to the end of the array, change file_type_subtype_table | |||
| 1300 | * in case the array had to get reallocated, and return | |||
| 1301 | * the index of the new entry. | |||
| 1302 | */ | |||
| 1303 | file_type_subtype = file_type_subtype_table_arr->len; | |||
| 1304 | g_array_append_val(file_type_subtype_table_arr, *fi)g_array_append_vals (file_type_subtype_table_arr, &(*fi), 1); | |||
| 1305 | file_type_subtype_table = (const struct file_type_subtype_info*)(void *)file_type_subtype_table_arr->data; | |||
| 1306 | return file_type_subtype; | |||
| 1307 | } | |||
| 1308 | ||||
| 1309 | /* De-registers a file writer - they can never be removed from the GArray, but we can "clear" an entry. | |||
| 1310 | */ | |||
| 1311 | void | |||
| 1312 | wtap_deregister_file_type_subtype(const int subtype) | |||
| 1313 | { | |||
| 1314 | struct file_type_subtype_info* finfo; | |||
| 1315 | ||||
| 1316 | if (subtype < 0 || subtype >= (int)file_type_subtype_table_arr->len) { | |||
| 1317 | ws_error("invalid file type to de-register")ws_log_fatal_full("Wiretap", LOG_LEVEL_ERROR, "wiretap/file_access.c" , 1317, __func__, "invalid file type to de-register"); | |||
| 1318 | return; | |||
| 1319 | } | |||
| 1320 | if ((unsigned)subtype < wtap_num_builtin_file_types_subtypes) { | |||
| 1321 | ws_error("built-in file types cannot be de-registered")ws_log_fatal_full("Wiretap", LOG_LEVEL_ERROR, "wiretap/file_access.c" , 1321, __func__, "built-in file types cannot be de-registered" ); | |||
| 1322 | return; | |||
| 1323 | } | |||
| 1324 | ||||
| 1325 | /* | |||
| 1326 | * Get the pointer from the GArray, so that we get a non-const | |||
| 1327 | * pointer. | |||
| 1328 | */ | |||
| 1329 | finfo = &g_array_index(file_type_subtype_table_arr, struct file_type_subtype_info, subtype)(((struct file_type_subtype_info*) (void *) (file_type_subtype_table_arr )->data) [(subtype)]); | |||
| 1330 | /* | |||
| 1331 | * Clear out this entry. | |||
| 1332 | */ | |||
| 1333 | finfo->description = NULL((void*)0); | |||
| 1334 | finfo->name = NULL((void*)0); | |||
| 1335 | finfo->default_file_extension = NULL((void*)0); | |||
| 1336 | finfo->additional_file_extensions = NULL((void*)0); | |||
| 1337 | finfo->writing_must_seek = false0; | |||
| 1338 | finfo->num_supported_blocks = 0; | |||
| 1339 | finfo->supported_blocks = NULL((void*)0); | |||
| 1340 | finfo->can_write_encap = NULL((void*)0); | |||
| 1341 | finfo->dump_open = NULL((void*)0); | |||
| 1342 | finfo->wslua_info = NULL((void*)0); | |||
| 1343 | } | |||
| 1344 | ||||
| 1345 | /* | |||
| 1346 | * Given a GArray of WTAP_ENCAP_ types, return the per-file encapsulation | |||
| 1347 | * type that would be needed to write out a file with those types. If | |||
| 1348 | * there's only one type, it's that type, otherwise it's | |||
| 1349 | * WTAP_ENCAP_PER_PACKET. | |||
| 1350 | */ | |||
| 1351 | int | |||
| 1352 | wtap_dump_required_file_encap_type(const GArray *file_encaps) | |||
| 1353 | { | |||
| 1354 | int encap; | |||
| 1355 | ||||
| 1356 | encap = WTAP_ENCAP_PER_PACKET-1; | |||
| 1357 | if (file_encaps->len == 1) { | |||
| 1358 | /* OK, use the one-and-only encapsulation type. */ | |||
| 1359 | encap = g_array_index(file_encaps, int, 0)(((int*) (void *) (file_encaps)->data) [(0)]); | |||
| 1360 | } | |||
| 1361 | return encap; | |||
| 1362 | } | |||
| 1363 | ||||
| 1364 | bool_Bool | |||
| 1365 | wtap_dump_can_write_encap(int file_type_subtype, int encap) | |||
| 1366 | { | |||
| 1367 | int result = 0; | |||
| 1368 | ||||
| 1369 | if (file_type_subtype < 0 || | |||
| 1370 | file_type_subtype >= (int)file_type_subtype_table_arr->len || | |||
| 1371 | file_type_subtype_table[file_type_subtype].can_write_encap == NULL((void*)0)) | |||
| 1372 | return false0; | |||
| 1373 | ||||
| 1374 | result = (*file_type_subtype_table[file_type_subtype].can_write_encap)(encap); | |||
| 1375 | ||||
| 1376 | if (result != 0) { | |||
| 1377 | /* if the err said to check wslua's can_write_encap, try that */ | |||
| 1378 | if (result == WTAP_ERR_CHECK_WSLUA-23 | |||
| 1379 | && file_type_subtype_table[file_type_subtype].wslua_info != NULL((void*)0) | |||
| 1380 | && file_type_subtype_table[file_type_subtype].wslua_info->wslua_can_write_encap != NULL((void*)0)) { | |||
| 1381 | ||||
| 1382 | result = (*file_type_subtype_table[file_type_subtype].wslua_info->wslua_can_write_encap)(encap, file_type_subtype_table[file_type_subtype].wslua_info->wslua_data); | |||
| 1383 | ||||
| 1384 | } | |||
| 1385 | ||||
| 1386 | if (result != 0) | |||
| 1387 | return false0; | |||
| 1388 | } | |||
| 1389 | ||||
| 1390 | return true1; | |||
| 1391 | } | |||
| 1392 | ||||
| 1393 | /* | |||
| 1394 | * Return true if a capture with a given GArray of encapsulation types | |||
| 1395 | * and a given bitset of comment types can be written in a specified | |||
| 1396 | * format, and false if it can't. | |||
| 1397 | */ | |||
| 1398 | static bool_Bool | |||
| 1399 | wtap_dump_can_write_format(int ft, const GArray *file_encaps, | |||
| 1400 | uint32_t required_comment_types) | |||
| 1401 | { | |||
| 1402 | unsigned i; | |||
| 1403 | ||||
| 1404 | /* | |||
| 1405 | * Can we write in this format? | |||
| 1406 | */ | |||
| 1407 | if (!wtap_dump_can_open(ft)) { | |||
| 1408 | /* No. */ | |||
| 1409 | return false0; | |||
| 1410 | } | |||
| 1411 | ||||
| 1412 | /* | |||
| 1413 | * Yes. Can we write out all the required comments in this | |||
| 1414 | * format? | |||
| 1415 | */ | |||
| 1416 | if (required_comment_types & WTAP_COMMENT_PER_SECTION0x00000001) { | |||
| 1417 | if (wtap_file_type_subtype_supports_option(ft, | |||
| 1418 | WTAP_BLOCK_SECTION, OPT_COMMENT1) == OPTION_NOT_SUPPORTED) { | |||
| 1419 | /* Not section comments. */ | |||
| 1420 | return false0; | |||
| 1421 | } | |||
| 1422 | } | |||
| 1423 | if (required_comment_types & WTAP_COMMENT_PER_INTERFACE0x00000002) { | |||
| 1424 | if (wtap_file_type_subtype_supports_option(ft, | |||
| 1425 | WTAP_BLOCK_IF_ID_AND_INFO, OPT_COMMENT1) == OPTION_NOT_SUPPORTED) { | |||
| 1426 | /* Not interface comments. */ | |||
| 1427 | return false0; | |||
| 1428 | } | |||
| 1429 | } | |||
| 1430 | if (required_comment_types & WTAP_COMMENT_PER_PACKET0x00000004) { | |||
| 1431 | if (wtap_file_type_subtype_supports_option(ft, | |||
| 1432 | WTAP_BLOCK_PACKET, OPT_COMMENT1) == OPTION_NOT_SUPPORTED) { | |||
| 1433 | /* Not packet comments. */ | |||
| 1434 | return false0; | |||
| 1435 | } | |||
| 1436 | } | |||
| 1437 | ||||
| 1438 | /* | |||
| 1439 | * Yes. Is the required per-file encapsulation type supported? | |||
| 1440 | * This might be WTAP_ENCAP_PER_PACKET. | |||
| 1441 | */ | |||
| 1442 | if (!wtap_dump_can_write_encap(ft, wtap_dump_required_file_encap_type(file_encaps))) { | |||
| 1443 | /* No. */ | |||
| 1444 | return false0; | |||
| 1445 | } | |||
| 1446 | ||||
| 1447 | /* | |||
| 1448 | * Yes. Are all the individual encapsulation types supported? | |||
| 1449 | */ | |||
| 1450 | for (i = 0; i < file_encaps->len; i++) { | |||
| 1451 | if (!wtap_dump_can_write_encap(ft, | |||
| 1452 | g_array_index(file_encaps, int, i)(((int*) (void *) (file_encaps)->data) [(i)]))) { | |||
| 1453 | /* No - one of them isn't. */ | |||
| 1454 | return false0; | |||
| 1455 | } | |||
| 1456 | } | |||
| 1457 | ||||
| 1458 | /* Yes - we're OK. */ | |||
| 1459 | return true1; | |||
| 1460 | } | |||
| 1461 | ||||
| 1462 | /* | |||
| 1463 | * Return true if we can write a file with the given GArray of | |||
| 1464 | * encapsulation types and the given bitmask of comment types. | |||
| 1465 | */ | |||
| 1466 | bool_Bool | |||
| 1467 | wtap_dump_can_write(const GArray *file_encaps, uint32_t required_comment_types) | |||
| 1468 | { | |||
| 1469 | int ft; | |||
| 1470 | ||||
| 1471 | for (ft = 0; ft < (int)file_type_subtype_table_arr->len; ft++) { | |||
| 1472 | /* To save a file with Wiretap, Wiretap has to handle that format, | |||
| 1473 | * and its code to handle that format must be able to write a file | |||
| 1474 | * with this file's encapsulation types. | |||
| 1475 | */ | |||
| 1476 | if (wtap_dump_can_write_format(ft, file_encaps, required_comment_types)) { | |||
| 1477 | /* OK, we can write it out in this type. */ | |||
| 1478 | return true1; | |||
| 1479 | } | |||
| 1480 | } | |||
| 1481 | ||||
| 1482 | /* No, we couldn't save it in any format. */ | |||
| 1483 | return false0; | |||
| 1484 | } | |||
| 1485 | ||||
| 1486 | /* | |||
| 1487 | * Sort by file type/subtype name. | |||
| 1488 | */ | |||
| 1489 | static int | |||
| 1490 | compare_file_type_subtypes_by_name(const void *a, const void *b) | |||
| 1491 | { | |||
| 1492 | int file_type_subtype_a = *(const int *)a; | |||
| 1493 | int file_type_subtype_b = *(const int *)b; | |||
| 1494 | ||||
| 1495 | return strcmp(wtap_file_type_subtype_name(file_type_subtype_a), | |||
| 1496 | wtap_file_type_subtype_name(file_type_subtype_b)); | |||
| 1497 | } | |||
| 1498 | ||||
| 1499 | /* | |||
| 1500 | * Sort by file type/subtype description. | |||
| 1501 | */ | |||
| 1502 | static int | |||
| 1503 | compare_file_type_subtypes_by_description(const void *a, const void *b) | |||
| 1504 | { | |||
| 1505 | int file_type_subtype_a = *(const int *)a; | |||
| 1506 | int file_type_subtype_b = *(const int *)b; | |||
| 1507 | ||||
| 1508 | return strcmp(wtap_file_type_subtype_description(file_type_subtype_a), | |||
| 1509 | wtap_file_type_subtype_description(file_type_subtype_b)); | |||
| 1510 | } | |||
| 1511 | ||||
| 1512 | /* | |||
| 1513 | * Get a GArray of file type/subtype values for file types/subtypes | |||
| 1514 | * that can be used to save a file of a given type/subtype with a given | |||
| 1515 | * GArray of encapsulation types and the given bitmask of comment types. | |||
| 1516 | */ | |||
| 1517 | GArray * | |||
| 1518 | wtap_get_savable_file_types_subtypes_for_file(int file_type_subtype, | |||
| 1519 | const GArray *file_encaps, uint32_t required_comment_types, | |||
| 1520 | ft_sort_order sort_order) | |||
| 1521 | { | |||
| 1522 | GArray *savable_file_types_subtypes; | |||
| 1523 | int ft; | |||
| 1524 | int default_file_type_subtype = -1; | |||
| 1525 | int other_file_type_subtype = -1; | |||
| 1526 | ||||
| 1527 | /* Can we save this file in its own file type/subtype? */ | |||
| 1528 | if (wtap_dump_can_write_format(file_type_subtype, file_encaps, | |||
| 1529 | required_comment_types)) { | |||
| 1530 | /* Yes - make that the default file type/subtype. */ | |||
| 1531 | default_file_type_subtype = file_type_subtype; | |||
| 1532 | } else if (wtap_dump_can_write_format(pcap_file_type_subtype, | |||
| 1533 | file_encaps, | |||
| 1534 | required_comment_types)) { | |||
| 1535 | /* | |||
| 1536 | * No, but we can write it as a pcap file; make that | |||
| 1537 | * the default file type/subtype. | |||
| 1538 | */ | |||
| 1539 | default_file_type_subtype = pcap_file_type_subtype; | |||
| 1540 | } else if (wtap_dump_can_write_format(pcapng_file_type_subtype, | |||
| 1541 | file_encaps, | |||
| 1542 | required_comment_types)) { | |||
| 1543 | /* | |||
| 1544 | * No, but we can write it as a pcapng file; make that | |||
| 1545 | * the default file type/subtype. | |||
| 1546 | */ | |||
| 1547 | default_file_type_subtype = pcapng_file_type_subtype; | |||
| 1548 | } else { | |||
| 1549 | /* OK, find the first file type/subtype we *can* save it as. */ | |||
| 1550 | default_file_type_subtype = -1; | |||
| 1551 | for (ft = 0; ft < (int)file_type_subtype_table_arr->len; ft++) { | |||
| 1552 | if (wtap_dump_can_write_format(ft, file_encaps, | |||
| 1553 | required_comment_types)) { | |||
| 1554 | /* OK, got it. */ | |||
| 1555 | default_file_type_subtype = ft; | |||
| 1556 | break; | |||
| 1557 | } | |||
| 1558 | } | |||
| 1559 | } | |||
| 1560 | ||||
| 1561 | if (default_file_type_subtype == -1) { | |||
| 1562 | /* We don't support writing this file as any file type/subtype. */ | |||
| 1563 | return NULL((void*)0); | |||
| 1564 | } | |||
| 1565 | ||||
| 1566 | /* | |||
| 1567 | * If the default is pcap, put pcapng right after it if we can | |||
| 1568 | * also write it in pcapng format; otherwise, if the default is | |||
| 1569 | * pcapng, put pcap right after it if we can also write it in | |||
| 1570 | * pcap format. | |||
| 1571 | */ | |||
| 1572 | if (default_file_type_subtype == pcap_file_type_subtype) { | |||
| 1573 | if (wtap_dump_can_write_format(pcapng_file_type_subtype, | |||
| 1574 | file_encaps, | |||
| 1575 | required_comment_types)) | |||
| 1576 | other_file_type_subtype = pcapng_file_type_subtype; | |||
| 1577 | } else if (default_file_type_subtype == pcapng_file_type_subtype) { | |||
| 1578 | if (wtap_dump_can_write_format(pcap_file_type_subtype, | |||
| 1579 | file_encaps, | |||
| 1580 | required_comment_types)) | |||
| 1581 | other_file_type_subtype = pcap_file_type_subtype; | |||
| 1582 | } | |||
| 1583 | ||||
| 1584 | /* Allocate the array. */ | |||
| 1585 | savable_file_types_subtypes = g_array_new(false0, false0, | |||
| 1586 | sizeof (int)); | |||
| 1587 | ||||
| 1588 | /* | |||
| 1589 | * First, add the types we don't want to force to the | |||
| 1590 | * beginning of the list. | |||
| 1591 | */ | |||
| 1592 | for (ft = 0; ft < (int)file_type_subtype_table_arr->len; ft++) { | |||
| 1593 | if (ft == default_file_type_subtype || | |||
| 1594 | ft == other_file_type_subtype) | |||
| 1595 | continue; /* we will done this one later */ | |||
| 1596 | if (wtap_dump_can_write_format(ft, file_encaps, | |||
| 1597 | required_comment_types)) { | |||
| 1598 | /* OK, we can write it out in this type. */ | |||
| 1599 | g_array_append_val(savable_file_types_subtypes, ft)g_array_append_vals (savable_file_types_subtypes, &(ft), 1 ); | |||
| 1600 | } | |||
| 1601 | } | |||
| 1602 | ||||
| 1603 | /* Now, sort the list. */ | |||
| 1604 | g_array_sort(savable_file_types_subtypes, | |||
| 1605 | (sort_order == FT_SORT_BY_NAME) ? compare_file_type_subtypes_by_name : | |||
| 1606 | compare_file_type_subtypes_by_description); | |||
| 1607 | ||||
| 1608 | /* | |||
| 1609 | * If we have a type/subtype to put above the default one, | |||
| 1610 | * do so. | |||
| 1611 | * | |||
| 1612 | * We put this type at the beginning before putting the | |||
| 1613 | * default there, so the default is at the top. | |||
| 1614 | */ | |||
| 1615 | if (other_file_type_subtype != -1) | |||
| 1616 | g_array_prepend_val(savable_file_types_subtypes,g_array_prepend_vals (savable_file_types_subtypes, &(other_file_type_subtype ), 1) | |||
| 1617 | other_file_type_subtype)g_array_prepend_vals (savable_file_types_subtypes, &(other_file_type_subtype ), 1); | |||
| 1618 | ||||
| 1619 | /* Put the default file type/subtype first in the list. */ | |||
| 1620 | g_array_prepend_val(savable_file_types_subtypes,g_array_prepend_vals (savable_file_types_subtypes, &(default_file_type_subtype ), 1) | |||
| 1621 | default_file_type_subtype)g_array_prepend_vals (savable_file_types_subtypes, &(default_file_type_subtype ), 1); | |||
| 1622 | ||||
| 1623 | return savable_file_types_subtypes; | |||
| 1624 | } | |||
| 1625 | ||||
| 1626 | /* | |||
| 1627 | * Get a GArray of all writable file type/subtype values. | |||
| 1628 | */ | |||
| 1629 | GArray * | |||
| 1630 | wtap_get_writable_file_types_subtypes(ft_sort_order sort_order) | |||
| 1631 | { | |||
| 1632 | GArray *writable_file_types_subtypes; | |||
| 1633 | int ft; | |||
| 1634 | ||||
| 1635 | /* | |||
| 1636 | * Allocate the array. | |||
| 1637 | * Pre-allocate room enough for all types. | |||
| 1638 | * XXX - that's overkill; just scan the table to find all the | |||
| 1639 | * writable types and count them. | |||
| 1640 | */ | |||
| 1641 | writable_file_types_subtypes = g_array_sized_new(false0, false0, | |||
| 1642 | sizeof (int), file_type_subtype_table_arr->len); | |||
| 1643 | ||||
| 1644 | /* | |||
| 1645 | * First, add the types we don't want to force to the | |||
| 1646 | * beginning of the list. | |||
| 1647 | */ | |||
| 1648 | for (ft = 0; ft < (int)file_type_subtype_table_arr->len; ft++) { | |||
| 1649 | if (ft == pcap_file_type_subtype || | |||
| 1650 | ft == pcapng_file_type_subtype) | |||
| 1651 | continue; /* we've already done these two */ | |||
| 1652 | if (wtap_dump_can_open(ft)) { | |||
| 1653 | /* OK, we can write this type. */ | |||
| 1654 | g_array_append_val(writable_file_types_subtypes, ft)g_array_append_vals (writable_file_types_subtypes, &(ft), 1); | |||
| 1655 | } | |||
| 1656 | } | |||
| 1657 | ||||
| 1658 | /* Now, sort the list. */ | |||
| 1659 | g_array_sort(writable_file_types_subtypes, | |||
| 1660 | (sort_order == FT_SORT_BY_NAME) ? compare_file_type_subtypes_by_name : | |||
| 1661 | compare_file_type_subtypes_by_description); | |||
| 1662 | ||||
| 1663 | /* | |||
| 1664 | * Now, put pcap and pcapng at the beginning, as they're | |||
| 1665 | * our "native" formats. Put pcapng there first, and | |||
| 1666 | * pcap before it. | |||
| 1667 | */ | |||
| 1668 | if (pcapng_file_type_subtype != -1 && | |||
| 1669 | wtap_dump_can_open(pcapng_file_type_subtype)) { | |||
| 1670 | /* | |||
| 1671 | * We can write pcapng. (If we can't, that's a huge | |||
| 1672 | * mistake.) | |||
| 1673 | */ | |||
| 1674 | g_array_prepend_val(writable_file_types_subtypes,g_array_prepend_vals (writable_file_types_subtypes, &(pcapng_file_type_subtype ), 1) | |||
| 1675 | pcapng_file_type_subtype)g_array_prepend_vals (writable_file_types_subtypes, &(pcapng_file_type_subtype ), 1); | |||
| 1676 | } | |||
| 1677 | if (pcap_file_type_subtype != -1 && | |||
| 1678 | wtap_dump_can_open(pcap_file_type_subtype)) { | |||
| 1679 | /* | |||
| 1680 | * We can write pcap. (If we can't, that's a huge | |||
| 1681 | * mistake.) | |||
| 1682 | */ | |||
| 1683 | g_array_prepend_val(writable_file_types_subtypes,g_array_prepend_vals (writable_file_types_subtypes, &(pcap_file_type_subtype ), 1) | |||
| 1684 | pcap_file_type_subtype)g_array_prepend_vals (writable_file_types_subtypes, &(pcap_file_type_subtype ), 1); | |||
| 1685 | } | |||
| 1686 | ||||
| 1687 | return writable_file_types_subtypes; | |||
| 1688 | } | |||
| 1689 | ||||
| 1690 | /* | |||
| 1691 | * String describing the file type/subtype. | |||
| 1692 | */ | |||
| 1693 | const char * | |||
| 1694 | wtap_file_type_subtype_description(int file_type_subtype) | |||
| 1695 | { | |||
| 1696 | if (file_type_subtype < 0 || | |||
| 1697 | file_type_subtype >= (int)file_type_subtype_table_arr->len) | |||
| 1698 | return NULL((void*)0); | |||
| 1699 | else | |||
| 1700 | return file_type_subtype_table[file_type_subtype].description; | |||
| 1701 | } | |||
| 1702 | ||||
| 1703 | /* | |||
| 1704 | * Name to use in, say, a command-line flag specifying the type/subtype. | |||
| 1705 | */ | |||
| 1706 | const char * | |||
| 1707 | wtap_file_type_subtype_name(int file_type_subtype) | |||
| 1708 | { | |||
| 1709 | if (file_type_subtype < 0 || | |||
| 1710 | file_type_subtype >= (int)file_type_subtype_table_arr->len) | |||
| 1711 | return NULL((void*)0); | |||
| 1712 | else | |||
| 1713 | return file_type_subtype_table[file_type_subtype].name; | |||
| 1714 | } | |||
| 1715 | ||||
| 1716 | /* | |||
| 1717 | * Register a backwards-compatibility name. | |||
| 1718 | */ | |||
| 1719 | void | |||
| 1720 | wtap_register_compatibility_file_subtype_name(const char *old_name, | |||
| 1721 | const char *new_name) | |||
| 1722 | { | |||
| 1723 | g_hash_table_insert(type_subtype_name_map, g_strdup(old_name)g_strdup_inline (old_name), | |||
| 1724 | g_strdup(new_name)g_strdup_inline (new_name)); | |||
| 1725 | } | |||
| 1726 | ||||
| 1727 | /* | |||
| 1728 | * Translate a name to a capture file type/subtype. | |||
| 1729 | */ | |||
| 1730 | int | |||
| 1731 | wtap_name_to_file_type_subtype(const char *name) | |||
| 1732 | { | |||
| 1733 | char *new_name; | |||
| 1734 | int file_type_subtype; | |||
| 1735 | ||||
| 1736 | /* | |||
| 1737 | * Is this name a backwards-compatibility name? | |||
| 1738 | */ | |||
| 1739 | new_name = (char *)g_hash_table_lookup(type_subtype_name_map, | |||
| 1740 | (void *)name); | |||
| 1741 | if (new_name != NULL((void*)0)) { | |||
| 1742 | /* | |||
| 1743 | * Yes, and new_name is the name to which it should | |||
| 1744 | * be mapped. | |||
| 1745 | */ | |||
| 1746 | name = new_name; | |||
| 1747 | } | |||
| 1748 | for (file_type_subtype = 0; | |||
| 1749 | file_type_subtype < (int)file_type_subtype_table_arr->len; | |||
| 1750 | file_type_subtype++) { | |||
| 1751 | if (file_type_subtype_table[file_type_subtype].name != NULL((void*)0) && | |||
| 1752 | strcmp(name, file_type_subtype_table[file_type_subtype].name) == 0) | |||
| 1753 | return file_type_subtype; | |||
| 1754 | } | |||
| 1755 | ||||
| 1756 | return -1; /* no such file type, or we can't write it */ | |||
| 1757 | } | |||
| 1758 | ||||
| 1759 | /* | |||
| 1760 | * Provide the file type/subtype for pcap. | |||
| 1761 | */ | |||
| 1762 | int | |||
| 1763 | wtap_pcap_file_type_subtype(void) | |||
| 1764 | { | |||
| 1765 | /* | |||
| 1766 | * Make sure pcap was registered as a file type/subtype; | |||
| 1767 | * it's one of our "native" formats. | |||
| 1768 | */ | |||
| 1769 | ws_assert(pcap_file_type_subtype != -1)do { if ((1) && !(pcap_file_type_subtype != -1)) ws_log_fatal_full ("Wiretap", LOG_LEVEL_ERROR, "wiretap/file_access.c", 1769, __func__ , "assertion failed: %s", "pcap_file_type_subtype != -1"); } while (0); | |||
| 1770 | return pcap_file_type_subtype; | |||
| 1771 | } | |||
| 1772 | ||||
| 1773 | /* | |||
| 1774 | * Provide the file type/subtype for nanosecond-resolution pcap. | |||
| 1775 | */ | |||
| 1776 | int | |||
| 1777 | wtap_pcap_nsec_file_type_subtype(void) | |||
| 1778 | { | |||
| 1779 | /* | |||
| 1780 | * Make sure nanosecond-resolution pcap was registered | |||
| 1781 | * as a file type/subtype; it's one of our "native" formats. | |||
| 1782 | */ | |||
| 1783 | ws_assert(pcap_nsec_file_type_subtype != -1)do { if ((1) && !(pcap_nsec_file_type_subtype != -1)) ws_log_fatal_full("Wiretap", LOG_LEVEL_ERROR, "wiretap/file_access.c" , 1783, __func__, "assertion failed: %s", "pcap_nsec_file_type_subtype != -1" ); } while (0); | |||
| 1784 | return pcap_nsec_file_type_subtype; | |||
| 1785 | } | |||
| 1786 | ||||
| 1787 | /* | |||
| 1788 | * Provide the file type/subtype for pcapng. | |||
| 1789 | */ | |||
| 1790 | int | |||
| 1791 | wtap_pcapng_file_type_subtype(void) | |||
| 1792 | { | |||
| 1793 | /* | |||
| 1794 | * Make sure pcapng was registered as a file type/subtype; | |||
| 1795 | * it's one of our "native" formats. | |||
| 1796 | */ | |||
| 1797 | ws_assert(pcapng_file_type_subtype != -1)do { if ((1) && !(pcapng_file_type_subtype != -1)) ws_log_fatal_full ("Wiretap", LOG_LEVEL_ERROR, "wiretap/file_access.c", 1797, __func__ , "assertion failed: %s", "pcapng_file_type_subtype != -1"); } while (0); | |||
| 1798 | return pcapng_file_type_subtype; | |||
| 1799 | } | |||
| 1800 | ||||
| 1801 | /* | |||
| 1802 | * Determine if a file type/subtype can write a block of the given type. | |||
| 1803 | */ | |||
| 1804 | block_support_t | |||
| 1805 | wtap_file_type_subtype_supports_block(int file_type_subtype, | |||
| 1806 | wtap_block_type_t type) | |||
| 1807 | { | |||
| 1808 | size_t num_supported_blocks; | |||
| 1809 | const struct supported_block_type *supported_blocks; | |||
| 1810 | ||||
| 1811 | if (file_type_subtype < 0 || | |||
| 1812 | file_type_subtype >= (int)file_type_subtype_table_arr->len) { | |||
| 1813 | /* | |||
| 1814 | * There's no such file type, so it can't support any | |||
| 1815 | * blocks. | |||
| 1816 | */ | |||
| 1817 | return BLOCK_NOT_SUPPORTED; | |||
| 1818 | } | |||
| 1819 | ||||
| 1820 | num_supported_blocks = file_type_subtype_table[file_type_subtype].num_supported_blocks; | |||
| 1821 | supported_blocks = file_type_subtype_table[file_type_subtype].supported_blocks; | |||
| 1822 | ||||
| 1823 | for (size_t block_idx = 0; block_idx < num_supported_blocks; | |||
| 1824 | block_idx++) { | |||
| 1825 | if (supported_blocks[block_idx].type == type) | |||
| 1826 | return supported_blocks[block_idx].support; | |||
| 1827 | } | |||
| 1828 | ||||
| 1829 | /* | |||
| 1830 | * Not found, which means not supported. | |||
| 1831 | */ | |||
| 1832 | return BLOCK_NOT_SUPPORTED; | |||
| 1833 | } | |||
| 1834 | ||||
| 1835 | /* | |||
| 1836 | * Determine if a file type/subtype, when writing a block of the given type, | |||
| 1837 | * can support adding the given option to the block. | |||
| 1838 | */ | |||
| 1839 | option_support_t | |||
| 1840 | wtap_file_type_subtype_supports_option(int file_type_subtype, | |||
| 1841 | wtap_block_type_t type, unsigned option) | |||
| 1842 | { | |||
| 1843 | size_t num_supported_blocks; | |||
| 1844 | const struct supported_block_type *supported_blocks; | |||
| 1845 | ||||
| 1846 | if (file_type_subtype < 0 || | |||
| 1847 | file_type_subtype >= (int)file_type_subtype_table_arr->len) { | |||
| 1848 | /* | |||
| 1849 | * There's no such file type, so it can't support any | |||
| 1850 | * blocks, and thus can't support any options. | |||
| 1851 | */ | |||
| 1852 | return OPTION_NOT_SUPPORTED; | |||
| 1853 | } | |||
| 1854 | ||||
| 1855 | num_supported_blocks = file_type_subtype_table[file_type_subtype].num_supported_blocks; | |||
| 1856 | supported_blocks = file_type_subtype_table[file_type_subtype].supported_blocks; | |||
| 1857 | ||||
| 1858 | for (size_t block_idx = 0; block_idx < num_supported_blocks; | |||
| 1859 | block_idx++) { | |||
| 1860 | if (supported_blocks[block_idx].type == type) { | |||
| 1861 | /* | |||
| 1862 | * OK, that block is known. | |||
| 1863 | * Is it supported? | |||
| 1864 | */ | |||
| 1865 | if (supported_blocks[block_idx].support == BLOCK_NOT_SUPPORTED) { | |||
| 1866 | /* | |||
| 1867 | * No, so clearly the option isn't | |||
| 1868 | * supported in that block. | |||
| 1869 | */ | |||
| 1870 | return OPTION_NOT_SUPPORTED; | |||
| 1871 | } | |||
| 1872 | ||||
| 1873 | /* | |||
| 1874 | * Yes, so check the options. | |||
| 1875 | */ | |||
| 1876 | size_t num_supported_options; | |||
| 1877 | const struct supported_option_type *supported_options; | |||
| 1878 | ||||
| 1879 | num_supported_options = supported_blocks[block_idx].num_supported_options; | |||
| 1880 | supported_options = supported_blocks[block_idx].supported_options; | |||
| 1881 | for (size_t opt_idx = 0; opt_idx < num_supported_options; | |||
| 1882 | opt_idx++) { | |||
| 1883 | if (supported_options[opt_idx].opt == option) | |||
| 1884 | return supported_options[opt_idx].support; | |||
| 1885 | } | |||
| 1886 | ||||
| 1887 | /* | |||
| 1888 | * Not found, which means not supported. | |||
| 1889 | */ | |||
| 1890 | return OPTION_NOT_SUPPORTED; | |||
| 1891 | } | |||
| 1892 | } | |||
| 1893 | ||||
| 1894 | /* | |||
| 1895 | * The block type wasn't found, which means it's not supported, | |||
| 1896 | * which means the option isn't supported in that block. | |||
| 1897 | */ | |||
| 1898 | return OPTION_NOT_SUPPORTED; | |||
| 1899 | } | |||
| 1900 | ||||
| 1901 | static GSList * | |||
| 1902 | add_extensions_for_file_type_subtype(int file_type_subtype, GSList *extensions, | |||
| 1903 | GSList *compression_type_extensions) | |||
| 1904 | { | |||
| 1905 | char **extensions_set, **extensionp; | |||
| 1906 | char *extension; | |||
| 1907 | ||||
| 1908 | if (file_type_subtype < 0 || | |||
| 1909 | file_type_subtype >= (int)file_type_subtype_table_arr->len) { | |||
| 1910 | /* | |||
| 1911 | * There's no such file type, so it has no extensions | |||
| 1912 | * to add. | |||
| 1913 | */ | |||
| 1914 | return extensions; | |||
| 1915 | } | |||
| 1916 | ||||
| 1917 | /* | |||
| 1918 | * Add the default extension, and all of the compressed variants | |||
| 1919 | * from the list of compressed-file extensions, if there is a | |||
| 1920 | * default extension. | |||
| 1921 | */ | |||
| 1922 | if (file_type_subtype_table[file_type_subtype].default_file_extension != NULL((void*)0)) { | |||
| 1923 | extensions = add_extensions(extensions, | |||
| 1924 | file_type_subtype_table[file_type_subtype].default_file_extension, | |||
| 1925 | compression_type_extensions); | |||
| 1926 | } | |||
| 1927 | ||||
| 1928 | if (file_type_subtype_table[file_type_subtype].additional_file_extensions != NULL((void*)0)) { | |||
| 1929 | /* | |||
| 1930 | * We have additional extensions; add them. | |||
| 1931 | * | |||
| 1932 | * First, split the extension-list string into a set of | |||
| 1933 | * extensions. | |||
| 1934 | */ | |||
| 1935 | extensions_set = g_strsplit(file_type_subtype_table[file_type_subtype].additional_file_extensions, | |||
| 1936 | ";", 0); | |||
| 1937 | ||||
| 1938 | /* | |||
| 1939 | * Add each of those extensions to the list. | |||
| 1940 | */ | |||
| 1941 | for (extensionp = extensions_set; *extensionp != NULL((void*)0); | |||
| 1942 | extensionp++) { | |||
| 1943 | extension = *extensionp; | |||
| 1944 | ||||
| 1945 | /* | |||
| 1946 | * Add the extension, and all compressed variants | |||
| 1947 | * of it if requested. | |||
| 1948 | */ | |||
| 1949 | extensions = add_extensions(extensions, extension, | |||
| 1950 | compression_type_extensions); | |||
| 1951 | } | |||
| 1952 | ||||
| 1953 | g_strfreev(extensions_set); | |||
| 1954 | } | |||
| 1955 | return extensions; | |||
| 1956 | } | |||
| 1957 | ||||
| 1958 | /* Return a list of file extensions that are used by the specified file | |||
| 1959 | * type/subtype. | |||
| 1960 | * | |||
| 1961 | * If include_compressed is true, the list will include compressed | |||
| 1962 | * extensions, e.g. not just "pcap" but also "pcap.gz" if we can read | |||
| 1963 | * gzipped files. | |||
| 1964 | * | |||
| 1965 | * All strings in the list are allocated with g_malloc() and must be freed | |||
| 1966 | * with g_free(). | |||
| 1967 | */ | |||
| 1968 | GSList * | |||
| 1969 | wtap_get_file_extensions_list(int file_type_subtype, bool_Bool include_compressed) | |||
| 1970 | { | |||
| 1971 | GSList *extensions, *compression_type_extensions; | |||
| 1972 | ||||
| 1973 | if (file_type_subtype < 0 || | |||
| 1974 | file_type_subtype >= (int)file_type_subtype_table_arr->len) | |||
| 1975 | return NULL((void*)0); /* not a valid file type */ | |||
| 1976 | ||||
| 1977 | if (file_type_subtype_table[file_type_subtype].default_file_extension == NULL((void*)0)) | |||
| 1978 | return NULL((void*)0); /* valid, but no extensions known */ | |||
| 1979 | ||||
| 1980 | extensions = NULL((void*)0); /* empty list, to start with */ | |||
| 1981 | ||||
| 1982 | /* | |||
| 1983 | * Add all this file type's extensions, with compressed | |||
| 1984 | * variants if include_compressed is true. | |||
| 1985 | */ | |||
| 1986 | if (include_compressed) { | |||
| 1987 | /* | |||
| 1988 | * Get compression-type extensions, if any. | |||
| 1989 | */ | |||
| 1990 | compression_type_extensions = wtap_get_all_compression_type_extensions_list(); | |||
| 1991 | } else { | |||
| 1992 | /* | |||
| 1993 | * We don't want the compressed file extensions. | |||
| 1994 | */ | |||
| 1995 | compression_type_extensions = NULL((void*)0); | |||
| 1996 | } | |||
| 1997 | extensions = add_extensions_for_file_type_subtype(file_type_subtype, extensions, | |||
| 1998 | compression_type_extensions); | |||
| 1999 | ||||
| 2000 | g_slist_free(compression_type_extensions); | |||
| 2001 | ||||
| 2002 | return g_slist_reverse(extensions); | |||
| 2003 | } | |||
| 2004 | ||||
| 2005 | /* Return a list of all extensions that are used by all capture file | |||
| 2006 | * types, including compressed extensions, e.g. not just "pcap" but | |||
| 2007 | * also "pcap.gz" if we can read gzipped files. | |||
| 2008 | * | |||
| 2009 | * "Capture files" means "include file types that correspond to | |||
| 2010 | * collections of network packets, but not file types that | |||
| 2011 | * store data that just happens to be transported over protocols | |||
| 2012 | * such as HTTP but that aren't collections of network packets", | |||
| 2013 | * so that it could be used for "All Capture Files" without picking | |||
| 2014 | * up JPEG files or files such as that - those aren't capture files, | |||
| 2015 | * and we *do* have them listed in the long list of individual file | |||
| 2016 | * types, so omitting them from "All Capture Files" is the right | |||
| 2017 | * thing to do. | |||
| 2018 | * | |||
| 2019 | * All strings in the list are allocated with g_malloc() and must be freed | |||
| 2020 | * with g_free(). | |||
| 2021 | * | |||
| 2022 | * This is used to generate a list of extensions to look for if the user | |||
| 2023 | * chooses "All Capture Files" in a file open dialog. | |||
| 2024 | */ | |||
| 2025 | GSList * | |||
| 2026 | wtap_get_all_capture_file_extensions_list(void) | |||
| 2027 | { | |||
| 2028 | GSList *extensions, *compression_type_extensions; | |||
| 2029 | unsigned int i; | |||
| 2030 | ||||
| 2031 | init_file_type_extensions(); | |||
| 2032 | ||||
| 2033 | extensions = NULL((void*)0); /* empty list, to start with */ | |||
| 2034 | ||||
| 2035 | /* | |||
| 2036 | * Get compression-type extensions, if any. | |||
| 2037 | */ | |||
| 2038 | compression_type_extensions = wtap_get_all_compression_type_extensions_list(); | |||
| 2039 | ||||
| 2040 | for (i = 0; i < file_type_extensions_arr->len; i++) { | |||
| 2041 | /* | |||
| 2042 | * Is this a capture file, rather than one of the | |||
| 2043 | * other random file types we can read? | |||
| 2044 | */ | |||
| 2045 | if (file_type_extensions[i].is_capture_file) { | |||
| 2046 | /* | |||
| 2047 | * Yes. Add all this file extension type's | |||
| 2048 | * extensions, with compressed variants. | |||
| 2049 | */ | |||
| 2050 | extensions = add_extensions_for_file_extensions_type(i, | |||
| 2051 | extensions, compression_type_extensions); | |||
| 2052 | } | |||
| 2053 | } | |||
| 2054 | ||||
| 2055 | g_slist_free(compression_type_extensions); | |||
| 2056 | ||||
| 2057 | return g_slist_reverse(extensions); | |||
| 2058 | } | |||
| 2059 | ||||
| 2060 | /* Return a list of all extensions that are used by all file types that | |||
| 2061 | * we can read, including compressed extensions, e.g. not just "pcap" but | |||
| 2062 | * also "pcap.gz" if we can read gzipped files. | |||
| 2063 | * | |||
| 2064 | * "File type" means "include file types that correspond to collections | |||
| 2065 | * of network packets, as well as file types that store data that just | |||
| 2066 | * happens to be transported over protocols such as HTTP but that aren't | |||
| 2067 | * collections of network packets, and plain text files". | |||
| 2068 | * | |||
| 2069 | * All strings in the list are allocated with g_malloc() and must be freed | |||
| 2070 | * with g_free(). | |||
| 2071 | * | |||
| 2072 | * This is used to get the "base name" for a file, by stripping off | |||
| 2073 | * compressed-file extensions and extensions that correspond to file | |||
| 2074 | * types that we know about. | |||
| 2075 | */ | |||
| 2076 | GSList * | |||
| 2077 | wtap_get_all_file_extensions_list(void) | |||
| 2078 | { | |||
| 2079 | GSList *extensions, *compression_type_extensions; | |||
| 2080 | ||||
| 2081 | extensions = NULL((void*)0); /* empty list, to start with */ | |||
| 2082 | ||||
| 2083 | /* | |||
| 2084 | * Get compression-type extensions, if any. | |||
| 2085 | */ | |||
| 2086 | compression_type_extensions = wtap_get_all_compression_type_extensions_list(); | |||
| 2087 | ||||
| 2088 | for (int ft = 0; ft < (int)file_type_subtype_table_arr->len; ft++) { | |||
| 2089 | extensions = add_extensions_for_file_type_subtype(ft, extensions, | |||
| 2090 | compression_type_extensions); | |||
| 2091 | } | |||
| 2092 | ||||
| 2093 | g_slist_free(compression_type_extensions); | |||
| 2094 | ||||
| 2095 | return g_slist_reverse(extensions); | |||
| 2096 | } | |||
| 2097 | ||||
| 2098 | /* | |||
| 2099 | * Free a list returned by wtap_get_file_extension_type_extensions(), | |||
| 2100 | * wtap_get_all_capture_file_extensions_list, wtap_get_file_extensions_list(), | |||
| 2101 | * or wtap_get_all_file_extensions_list(). | |||
| 2102 | */ | |||
| 2103 | void | |||
| 2104 | wtap_free_extensions_list(GSList *extensions) | |||
| 2105 | { | |||
| 2106 | GSList *extension; | |||
| 2107 | ||||
| 2108 | for (extension = extensions; extension != NULL((void*)0); | |||
| 2109 | extension = g_slist_next(extension)((extension) ? (((GSList *)(extension))->next) : ((void*)0 ))) { | |||
| 2110 | g_free(extension->data); | |||
| 2111 | } | |||
| 2112 | g_slist_free(extensions); | |||
| 2113 | } | |||
| 2114 | ||||
| 2115 | /* | |||
| 2116 | * Return the default file extension to use with the specified file type | |||
| 2117 | * and subtype; that's just the extension, without any ".". | |||
| 2118 | */ | |||
| 2119 | const char * | |||
| 2120 | wtap_default_file_extension(int file_type_subtype) | |||
| 2121 | { | |||
| 2122 | if (file_type_subtype < 0 || | |||
| 2123 | file_type_subtype >= (int)file_type_subtype_table_arr->len) | |||
| 2124 | return NULL((void*)0); | |||
| 2125 | else | |||
| 2126 | return file_type_subtype_table[file_type_subtype].default_file_extension; | |||
| 2127 | } | |||
| 2128 | ||||
| 2129 | /* | |||
| 2130 | * Return whether we know how to write the specified file type. | |||
| 2131 | */ | |||
| 2132 | bool_Bool | |||
| 2133 | wtap_dump_can_open(int file_type_subtype) | |||
| 2134 | { | |||
| 2135 | if (file_type_subtype < 0 || | |||
| 2136 | file_type_subtype >= (int)file_type_subtype_table_arr->len || | |||
| 2137 | file_type_subtype_table[file_type_subtype].dump_open == NULL((void*)0)) | |||
| 2138 | return false0; | |||
| 2139 | ||||
| 2140 | return true1; | |||
| 2141 | } | |||
| 2142 | ||||
| 2143 | /* | |||
| 2144 | * Return whether we know how to write a compressed file of the specified | |||
| 2145 | * file type. | |||
| 2146 | */ | |||
| 2147 | #if defined (HAVE_ZLIB1) || defined (HAVE_ZLIBNG) || defined (HAVE_LZ4FRAME_H1) | |||
| 2148 | bool_Bool | |||
| 2149 | wtap_dump_can_compress(int file_type_subtype) | |||
| 2150 | { | |||
| 2151 | /* | |||
| 2152 | * If this is an unknown file type, or if we have to | |||
| 2153 | * seek when writing out a file with this file type, | |||
| 2154 | * return false. | |||
| 2155 | */ | |||
| 2156 | if (file_type_subtype < 0 || | |||
| 2157 | file_type_subtype >= (int)file_type_subtype_table_arr->len || | |||
| 2158 | file_type_subtype_table[file_type_subtype].writing_must_seek) | |||
| 2159 | return false0; | |||
| 2160 | ||||
| 2161 | return true1; | |||
| 2162 | } | |||
| 2163 | #else | |||
| 2164 | bool_Bool | |||
| 2165 | wtap_dump_can_compress(int file_type_subtype _U___attribute__((unused))) | |||
| 2166 | { | |||
| 2167 | return false0; | |||
| 2168 | } | |||
| 2169 | #endif | |||
| 2170 | ||||
| 2171 | static bool_Bool wtap_dump_open_finish(wtap_dumper *wdh, int *err, | |||
| 2172 | char **err_info); | |||
| 2173 | ||||
| 2174 | static WFILE_T wtap_dump_file_open(wtap_dumper *wdh, const char *filename); | |||
| 2175 | static WFILE_T wtap_dump_file_fdopen(wtap_dumper *wdh, int fd); | |||
| 2176 | static int wtap_dump_file_close(wtap_dumper *wdh); | |||
| 2177 | static bool_Bool wtap_dump_fix_idb(wtap_dumper *wdh, wtap_block_t idb, int *err); | |||
| 2178 | ||||
| 2179 | static wtap_dumper * | |||
| 2180 | wtap_dump_init_dumper(int file_type_subtype, wtap_compression_type compression_type, | |||
| 2181 | const wtap_dump_params *params, int *err) | |||
| 2182 | { | |||
| 2183 | wtap_dumper *wdh; | |||
| 2184 | wtap_block_t descr, file_int_data; | |||
| 2185 | wtapng_if_descr_mandatory_t *descr_mand, *file_int_data_mand; | |||
| 2186 | GArray *interfaces = params->idb_inf ? params->idb_inf->interface_data : NULL((void*)0); | |||
| 2187 | ||||
| 2188 | /* Can we write files of this file type/subtype? | |||
| 2189 | * | |||
| 2190 | * This will fail if file_type_subtype isn't a valid | |||
| 2191 | * file type/subtype value, so, if it doesn't fail, | |||
| 2192 | * we know file_type_subtype is within the bounds of | |||
| 2193 | * the table of file types/subtypes. | |||
| 2194 | */ | |||
| 2195 | if (!wtap_dump_can_open(file_type_subtype)) { | |||
| 2196 | /* Invalid type, or type we don't know how to write. */ | |||
| 2197 | *err = WTAP_ERR_UNWRITABLE_FILE_TYPE-7; | |||
| 2198 | return NULL((void*)0); | |||
| 2199 | } | |||
| 2200 | ||||
| 2201 | /* OK, we know how to write that file type/subtype; can we write | |||
| 2202 | * the specified encapsulation type in that file type/subtype? | |||
| 2203 | */ | |||
| 2204 | *err = (*file_type_subtype_table[file_type_subtype].can_write_encap)(params->encap); | |||
| 2205 | /* if the err said to check wslua's can_write_encap, try that */ | |||
| 2206 | if (*err == WTAP_ERR_CHECK_WSLUA-23 | |||
| 2207 | && file_type_subtype_table[file_type_subtype].wslua_info != NULL((void*)0) | |||
| 2208 | && file_type_subtype_table[file_type_subtype].wslua_info->wslua_can_write_encap != NULL((void*)0)) { | |||
| 2209 | ||||
| 2210 | *err = (*file_type_subtype_table[file_type_subtype].wslua_info->wslua_can_write_encap)(params->encap, file_type_subtype_table[file_type_subtype].wslua_info->wslua_data); | |||
| 2211 | } | |||
| 2212 | ||||
| 2213 | if (*err != 0) { | |||
| 2214 | /* No, we can't. */ | |||
| 2215 | return NULL((void*)0); | |||
| 2216 | } | |||
| 2217 | ||||
| 2218 | /* Check whether we can open a capture file with that file type | |||
| 2219 | * and that encapsulation, and, if the compression type isn't | |||
| 2220 | * "uncompressed", whether we can write a *compressed* file | |||
| 2221 | * of that file type. | |||
| 2222 | * If we're doing compression, can this file type/subtype be | |||
| 2223 | written in compressed form? | |||
| 2224 | * | |||
| 2225 | * (The particular type doesn't matter - if the file can't | |||
| 2226 | * be written 100% sequentially, we can't compress it, | |||
| 2227 | * because we can't go back and overwrite something we've | |||
| 2228 | * already written. | |||
| 2229 | */ | |||
| 2230 | if (compression_type != WTAP_UNCOMPRESSED && | |||
| 2231 | !wtap_dump_can_compress(file_type_subtype)) { | |||
| 2232 | *err = WTAP_ERR_COMPRESSION_NOT_SUPPORTED-17; | |||
| 2233 | return NULL((void*)0); | |||
| 2234 | } | |||
| 2235 | ||||
| 2236 | /* Allocate a data structure for the output stream. */ | |||
| 2237 | wdh = g_new0(wtap_dumper, 1)((wtap_dumper *) g_malloc0_n ((1), sizeof (wtap_dumper))); | |||
| 2238 | if (wdh == NULL((void*)0)) { | |||
| 2239 | *err = errno(*__errno_location ()); | |||
| 2240 | return NULL((void*)0); | |||
| 2241 | } | |||
| 2242 | ||||
| 2243 | wdh->file_type_subtype = file_type_subtype; | |||
| 2244 | wdh->snaplen = params->snaplen; | |||
| 2245 | wdh->file_encap = params->encap; | |||
| 2246 | wdh->compression_type = compression_type; | |||
| 2247 | wdh->wslua_data = NULL((void*)0); | |||
| 2248 | wdh->shb_iface_to_global = params->shb_iface_to_global; | |||
| 2249 | wdh->interface_data = g_array_new(false0, false0, sizeof(wtap_block_t)); | |||
| 2250 | ||||
| 2251 | /* Set Section Header Block data */ | |||
| 2252 | wdh->shb_hdrs = params->shb_hdrs; | |||
| 2253 | /* Set Name Resolution Block data */ | |||
| 2254 | wdh->nrbs_growing = params->nrbs_growing; | |||
| 2255 | /* Set Interface Description Block data */ | |||
| 2256 | if (interfaces && interfaces->len) { | |||
| 2257 | if (!params->dont_copy_idbs) { /* XXX */ | |||
| 2258 | unsigned itf_count; | |||
| 2259 | ||||
| 2260 | /* Note: this memory is owned by wtap_dumper and will become | |||
| 2261 | * invalid after wtap_dump_close. */ | |||
| 2262 | for (itf_count = 0; itf_count
| |||
| 2263 | file_int_data = g_array_index(interfaces, wtap_block_t, itf_count)(((wtap_block_t*) (void *) (interfaces)->data) [(itf_count )]); | |||
| 2264 | file_int_data_mand = (wtapng_if_descr_mandatory_t*)wtap_block_get_mandatory_data(file_int_data); | |||
| 2265 | descr = wtap_block_make_copy(file_int_data); | |||
| 2266 | if ((params->encap != WTAP_ENCAP_PER_PACKET-1) && (params->encap != file_int_data_mand->wtap_encap)) { | |||
| 2267 | descr_mand = (wtapng_if_descr_mandatory_t*)wtap_block_get_mandatory_data(descr); | |||
| 2268 | descr_mand->wtap_encap = params->encap; | |||
| 2269 | } | |||
| 2270 | if (!wtap_dump_fix_idb(wdh, descr, err)) { | |||
| 2271 | return NULL((void*)0); | |||
| ||||
| 2272 | } | |||
| 2273 | g_array_append_val(wdh->interface_data, descr)g_array_append_vals (wdh->interface_data, &(descr), 1); | |||
| 2274 | } | |||
| 2275 | } | |||
| 2276 | } else if (params->encap != WTAP_ENCAP_NONE-2 && params->encap != WTAP_ENCAP_PER_PACKET-1) { | |||
| 2277 | /* Generate a fake IDB if we don't have one, unless the | |||
| 2278 | * file encapsulation is none. (WTAP_ENCAP_NONE either | |||
| 2279 | * means that there are no interfaces, or they will be | |||
| 2280 | * provided later when reading the file in single-pass mode.) | |||
| 2281 | * | |||
| 2282 | * For WTAP_ENCAP_PER_PACKET, we'll have to generate IDBs | |||
| 2283 | * from packet records as they come in. (pcapng does this now.) | |||
| 2284 | * | |||
| 2285 | * XXX File types should provide their own IDBs (possibly | |||
| 2286 | * fake ones generated by wtap_add_generated_idb()), in | |||
| 2287 | * order to support being used as inputs for mergecap where | |||
| 2288 | * pcapng is the output. | |||
| 2289 | */ | |||
| 2290 | descr = wtap_dump_params_generate_idb(params); | |||
| 2291 | g_array_append_val(wdh->interface_data, descr)g_array_append_vals (wdh->interface_data, &(descr), 1); | |||
| 2292 | } | |||
| 2293 | /* Set Decryption Secrets Blocks */ | |||
| 2294 | wdh->dsbs_initial = params->dsbs_initial; | |||
| 2295 | wdh->dsbs_growing = params->dsbs_growing; | |||
| 2296 | /* Set Sysdig meta events */ | |||
| 2297 | wdh->mevs_growing = params->mevs_growing; | |||
| 2298 | return wdh; | |||
| 2299 | } | |||
| 2300 | ||||
| 2301 | wtap_dumper * | |||
| 2302 | wtap_dump_open(const char *filename, int file_type_subtype, | |||
| 2303 | wtap_compression_type compression_type, const wtap_dump_params *params, | |||
| 2304 | int *err, char **err_info) | |||
| 2305 | { | |||
| 2306 | wtap_dumper *wdh; | |||
| 2307 | WFILE_T fh; | |||
| 2308 | ||||
| 2309 | *err = 0; | |||
| 2310 | *err_info = NULL((void*)0); | |||
| 2311 | ||||
| 2312 | /* Allocate and initialize a data structure for the output stream. */ | |||
| 2313 | wdh = wtap_dump_init_dumper(file_type_subtype, compression_type, params, | |||
| 2314 | err); | |||
| 2315 | if (wdh == NULL((void*)0)) | |||
| 2316 | return NULL((void*)0); | |||
| 2317 | ||||
| 2318 | /* In case "fopen()" fails but doesn't set "errno", set "errno" | |||
| 2319 | to a generic "the open failed" error. */ | |||
| 2320 | errno(*__errno_location ()) = WTAP_ERR_CANT_OPEN-6; | |||
| 2321 | fh = wtap_dump_file_open(wdh, filename); | |||
| 2322 | if (fh == NULL((void*)0)) { | |||
| 2323 | *err = errno(*__errno_location ()); | |||
| 2324 | g_free(wdh); | |||
| 2325 | return NULL((void*)0); /* can't create file */ | |||
| 2326 | } | |||
| 2327 | wdh->fh = fh; | |||
| 2328 | ||||
| 2329 | if (!wtap_dump_open_finish(wdh, err, err_info)) { | |||
| 2330 | /* Get rid of the file we created; we couldn't finish | |||
| 2331 | opening it. */ | |||
| 2332 | wtap_dump_file_close(wdh); | |||
| 2333 | ws_unlinkunlink(filename); | |||
| 2334 | g_free(wdh); | |||
| 2335 | return NULL((void*)0); | |||
| 2336 | } | |||
| 2337 | return wdh; | |||
| 2338 | } | |||
| 2339 | ||||
| 2340 | wtap_dumper * | |||
| 2341 | wtap_dump_open_tempfile(const char *tmpdir, char **filenamep, const char *pfx, | |||
| 2342 | int file_type_subtype, wtap_compression_type compression_type, | |||
| 2343 | const wtap_dump_params *params, int *err, char **err_info) | |||
| 2344 | { | |||
| 2345 | int fd; | |||
| 2346 | const char *ext; | |||
| 2347 | char sfx[16]; | |||
| 2348 | wtap_dumper *wdh; | |||
| 2349 | WFILE_T fh; | |||
| 2350 | ||||
| 2351 | /* No path name for the temporary file yet. */ | |||
| 2352 | *filenamep = NULL((void*)0); | |||
| 2353 | ||||
| 2354 | *err = 0; | |||
| 2355 | *err_info = NULL((void*)0); | |||
| 2356 | ||||
| 2357 | /* Allocate and initialize a data structure for the output stream. */ | |||
| 2358 | wdh = wtap_dump_init_dumper(file_type_subtype, compression_type, params, | |||
| 2359 | err); | |||
| 2360 | if (wdh == NULL((void*)0)) | |||
| 2361 | return NULL((void*)0); | |||
| 2362 | ||||
| 2363 | /* Choose an appropriate suffix for the file */ | |||
| 2364 | ext = wtap_default_file_extension(file_type_subtype); | |||
| 2365 | if (ext == NULL((void*)0)) | |||
| 2366 | ext = "tmp"; | |||
| 2367 | sfx[0] = '.'; | |||
| 2368 | sfx[1] = '\0'; | |||
| 2369 | (void) g_strlcat(sfx, ext, 16); | |||
| 2370 | ||||
| 2371 | /* Choose a random name for the file */ | |||
| 2372 | fd = create_tempfile(tmpdir, filenamep, pfx, sfx, NULL((void*)0)); | |||
| 2373 | if (fd == -1) { | |||
| 2374 | *err = WTAP_ERR_CANT_OPEN-6; | |||
| 2375 | g_free(wdh); | |||
| 2376 | return NULL((void*)0); /* can't create file */ | |||
| 2377 | } | |||
| 2378 | ||||
| 2379 | /* In case "fopen()" fails but doesn't set "errno", set "errno" | |||
| 2380 | to a generic "the open failed" error. */ | |||
| 2381 | errno(*__errno_location ()) = WTAP_ERR_CANT_OPEN-6; | |||
| 2382 | fh = wtap_dump_file_fdopen(wdh, fd); | |||
| 2383 | if (fh == NULL((void*)0)) { | |||
| 2384 | *err = errno(*__errno_location ()); | |||
| 2385 | ws_closeclose(fd); | |||
| 2386 | g_free(wdh); | |||
| 2387 | return NULL((void*)0); /* can't create file */ | |||
| 2388 | } | |||
| 2389 | wdh->fh = fh; | |||
| 2390 | ||||
| 2391 | if (!wtap_dump_open_finish(wdh, err, err_info)) { | |||
| 2392 | /* Get rid of the file we created; we couldn't finish | |||
| 2393 | opening it. */ | |||
| 2394 | wtap_dump_file_close(wdh); | |||
| 2395 | ws_unlinkunlink(*filenamep); | |||
| 2396 | g_free(wdh); | |||
| 2397 | return NULL((void*)0); | |||
| 2398 | } | |||
| 2399 | return wdh; | |||
| 2400 | } | |||
| 2401 | ||||
| 2402 | wtap_dumper * | |||
| 2403 | wtap_dump_fdopen(int fd, int file_type_subtype, wtap_compression_type compression_type, | |||
| 2404 | const wtap_dump_params *params, int *err, char **err_info) | |||
| 2405 | { | |||
| 2406 | wtap_dumper *wdh; | |||
| 2407 | WFILE_T fh; | |||
| 2408 | ||||
| 2409 | *err = 0; | |||
| 2410 | *err_info = NULL((void*)0); | |||
| 2411 | ||||
| 2412 | /* Allocate and initialize a data structure for the output stream. */ | |||
| 2413 | wdh = wtap_dump_init_dumper(file_type_subtype, compression_type, params, | |||
| 2414 | err); | |||
| 2415 | if (wdh == NULL((void*)0)) | |||
| 2416 | return NULL((void*)0); | |||
| 2417 | ||||
| 2418 | /* In case "fopen()" fails but doesn't set "errno", set "errno" | |||
| 2419 | to a generic "the open failed" error. */ | |||
| 2420 | errno(*__errno_location ()) = WTAP_ERR_CANT_OPEN-6; | |||
| 2421 | fh = wtap_dump_file_fdopen(wdh, fd); | |||
| 2422 | if (fh == NULL((void*)0)) { | |||
| 2423 | *err = errno(*__errno_location ()); | |||
| 2424 | g_free(wdh); | |||
| 2425 | return NULL((void*)0); /* can't create standard I/O stream */ | |||
| 2426 | } | |||
| 2427 | wdh->fh = fh; | |||
| 2428 | ||||
| 2429 | if (!wtap_dump_open_finish(wdh, err, err_info)) { | |||
| 2430 | wtap_dump_file_close(wdh); | |||
| 2431 | g_free(wdh); | |||
| 2432 | return NULL((void*)0); | |||
| 2433 | } | |||
| 2434 | return wdh; | |||
| 2435 | } | |||
| 2436 | ||||
| 2437 | wtap_dumper * | |||
| 2438 | wtap_dump_open_stdout(int file_type_subtype, wtap_compression_type compression_type, | |||
| 2439 | const wtap_dump_params *params, int *err, char **err_info) | |||
| 2440 | { | |||
| 2441 | int new_fd; | |||
| 2442 | wtap_dumper *wdh; | |||
| 2443 | ||||
| 2444 | /* | |||
| 2445 | * Duplicate the file descriptor, so that we can close the | |||
| 2446 | * wtap_dumper handle the same way we close any other | |||
| 2447 | * wtap_dumper handle, without closing the standard output. | |||
| 2448 | */ | |||
| 2449 | new_fd = ws_dupdup(1); | |||
| 2450 | if (new_fd == -1) { | |||
| ||||
| 2451 | /* dup failed */ | |||
| 2452 | *err = errno(*__errno_location ()); | |||
| 2453 | return NULL((void*)0); | |||
| 2454 | } | |||
| 2455 | #ifdef _WIN32 | |||
| 2456 | /* | |||
| 2457 | * Put the new descriptor into binary mode. | |||
| 2458 | * | |||
| 2459 | * XXX - even if the file format we're writing is a text | |||
| 2460 | * format? | |||
| 2461 | */ | |||
| 2462 | if (_setmode(new_fd, O_BINARY0) == -1) { | |||
| 2463 | /* "Should not happen" */ | |||
| 2464 | *err = errno(*__errno_location ()); | |||
| 2465 | ws_closeclose(new_fd); | |||
| 2466 | return NULL((void*)0); | |||
| 2467 | } | |||
| 2468 | #endif | |||
| 2469 | ||||
| 2470 | wdh = wtap_dump_fdopen(new_fd, file_type_subtype, compression_type, | |||
| 2471 | params, err, err_info); | |||
| 2472 | if (wdh == NULL((void*)0)) { | |||
| 2473 | /* Failed; close the new FD */ | |||
| 2474 | ws_closeclose(new_fd); | |||
| 2475 | return NULL((void*)0); | |||
| 2476 | } | |||
| 2477 | return wdh; | |||
| 2478 | } | |||
| 2479 | ||||
| 2480 | static bool_Bool | |||
| 2481 | wtap_dump_open_finish(wtap_dumper *wdh, int *err, char **err_info) | |||
| 2482 | { | |||
| 2483 | int fd; | |||
| 2484 | bool_Bool cant_seek; | |||
| 2485 | ||||
| 2486 | /* Can we do a seek on the file descriptor? | |||
| 2487 | If not, note that fact. */ | |||
| 2488 | if (wdh->compression_type != WTAP_UNCOMPRESSED) { | |||
| 2489 | cant_seek = true1; | |||
| 2490 | } else { | |||
| 2491 | fd = ws_filenofileno((FILE *)wdh->fh); | |||
| 2492 | if (ws_lseek64lseek(fd, 1, SEEK_CUR1) == (off_t) -1) | |||
| 2493 | cant_seek = true1; | |||
| 2494 | else { | |||
| 2495 | /* Undo the seek. */ | |||
| 2496 | ws_lseek64lseek(fd, 0, SEEK_SET0); | |||
| 2497 | cant_seek = false0; | |||
| 2498 | } | |||
| 2499 | } | |||
| 2500 | ||||
| 2501 | /* If this file type requires seeking, and we can't seek, fail. */ | |||
| 2502 | if (file_type_subtype_table[wdh->file_type_subtype].writing_must_seek && cant_seek) { | |||
| 2503 | *err = WTAP_ERR_CANT_WRITE_TO_PIPE-5; | |||
| 2504 | return false0; | |||
| 2505 | } | |||
| 2506 | ||||
| 2507 | /* Set wdh with wslua data if any - this is how we pass the data | |||
| 2508 | * to the file writer. | |||
| 2509 | */ | |||
| 2510 | if (file_type_subtype_table[wdh->file_type_subtype].wslua_info) | |||
| 2511 | wdh->wslua_data = file_type_subtype_table[wdh->file_type_subtype].wslua_info->wslua_data; | |||
| 2512 | ||||
| 2513 | /* Now try to open the file for writing. */ | |||
| 2514 | if (!(*file_type_subtype_table[wdh->file_type_subtype].dump_open)(wdh, err, | |||
| 2515 | err_info)) { | |||
| 2516 | return false0; | |||
| 2517 | } | |||
| 2518 | ||||
| 2519 | return true1; /* success! */ | |||
| 2520 | } | |||
| 2521 | ||||
| 2522 | /* XXX - Temporary hack to deal with nstime_t, and thus wtap_rec and libwiretap | |||
| 2523 | * in general, not storing precision greater than nanoseconds yet. Despite | |||
| 2524 | * whatever precision an IDB claims, we can't write finer than nanosecond. | |||
| 2525 | * Eventually this should be removed. | |||
| 2526 | * Fix a given IDB to indicate no greater than nanosecond precision. */ | |||
| 2527 | static bool_Bool | |||
| 2528 | wtap_dump_fix_idb(wtap_dumper *wdb _U___attribute__((unused)), wtap_block_t idb, int *err) | |||
| 2529 | { | |||
| 2530 | wtapng_if_descr_mandatory_t *idb_mand; | |||
| 2531 | int64_t tsoffset; | |||
| 2532 | idb_mand = (wtapng_if_descr_mandatory_t*)wtap_block_get_mandatory_data(idb); | |||
| 2533 | ||||
| 2534 | /* | |||
| 2535 | * nstime_t only stores nanoseconds, so instead of claiming false | |||
| 2536 | * precision, fix things up. | |||
| 2537 | */ | |||
| 2538 | if (idb_mand->time_units_per_second > 1000000000) { | |||
| 2539 | ws_warning("original time precision reduced to nanoseconds")do { if (1) { ws_log_full("Wiretap", LOG_LEVEL_WARNING, "wiretap/file_access.c" , 2539, __func__, "original time precision reduced to nanoseconds" ); } } while (0); | |||
| 2540 | idb_mand->time_units_per_second = 1000000000; | |||
| 2541 | switch (wtap_block_set_uint8_option_value(idb, OPT_IDB_TSRESOL9, 9)) { | |||
| 2542 | case WTAP_OPTTYPE_SUCCESS: | |||
| 2543 | break; | |||
| 2544 | case WTAP_OPTTYPE_NOT_FOUND: | |||
| 2545 | // This "should not" happen, because no if_tsresol means 6, | |||
| 2546 | // and time_units_per_second should be 1000000; | |||
| 2547 | if (wtap_block_add_uint8_option(idb, OPT_IDB_TSRESOL9, 9) == WTAP_OPTTYPE_SUCCESS) { | |||
| 2548 | break; | |||
| 2549 | } | |||
| 2550 | /* FALLTHROUGH */ | |||
| 2551 | default: | |||
| 2552 | // These "should not" happen either. | |||
| 2553 | *err = WTAP_ERR_INTERNAL-21; | |||
| 2554 | return false0; | |||
| 2555 | } | |||
| 2556 | } | |||
| 2557 | ||||
| 2558 | /* | |||
| 2559 | * Since we're not writing more than nanosecond resolution, if_tsoffset | |||
| 2560 | * isn't necessary, as anything we can store in absolute timestamps in | |||
| 2561 | * Wireshark records we can write to a file without an offset (unless | |||
| 2562 | * we have 32-bit time_t, but that's rare these days.) So we remove it | |||
| 2563 | * here, though in the long term we should keep it. | |||
| 2564 | */ | |||
| 2565 | if (wtap_block_get_int64_option_value(idb, OPT_IDB_TSOFFSET14, &tsoffset) == WTAP_OPTTYPE_SUCCESS) { | |||
| 2566 | wtap_block_remove_option(idb, OPT_IDB_TSOFFSET14); | |||
| 2567 | } | |||
| 2568 | ||||
| 2569 | return true1; | |||
| 2570 | } | |||
| 2571 | ||||
| 2572 | bool_Bool | |||
| 2573 | wtap_dump_add_idb(wtap_dumper *wdh, wtap_block_t idb, int *err, | |||
| 2574 | char **err_info) | |||
| 2575 | { | |||
| 2576 | wtap_block_t idb_copy; | |||
| 2577 | ||||
| 2578 | if (wdh->subtype_add_idb == NULL((void*)0)) { | |||
| 2579 | /* Not supported. */ | |||
| 2580 | *err = WTAP_ERR_UNWRITABLE_REC_TYPE-24; | |||
| 2581 | *err_info = g_strdup("Adding IDBs isn't supported by this file type")g_strdup_inline ("Adding IDBs isn't supported by this file type" ); | |||
| 2582 | return false0; | |||
| 2583 | } | |||
| 2584 | ||||
| 2585 | /* | |||
| 2586 | * Add a copy of this IDB to our array of IDBs. | |||
| 2587 | */ | |||
| 2588 | idb_copy = wtap_block_create(WTAP_BLOCK_IF_ID_AND_INFO); | |||
| 2589 | wtap_block_copy(idb_copy, idb); | |||
| 2590 | g_array_append_val(wdh->interface_data, idb_copy)g_array_append_vals (wdh->interface_data, &(idb_copy), 1); | |||
| 2591 | ||||
| 2592 | if (!wtap_dump_fix_idb(wdh, idb_copy, err)) { | |||
| 2593 | *err_info = ws_strdup_printf("pcapng: failed to lower time resolution to nanoseconds")wmem_strdup_printf(((void*)0), "pcapng: failed to lower time resolution to nanoseconds" ); | |||
| 2594 | return false0; | |||
| 2595 | } | |||
| 2596 | ||||
| 2597 | *err = 0; | |||
| 2598 | *err_info = NULL((void*)0); | |||
| 2599 | return (wdh->subtype_add_idb)(wdh, idb, err, err_info); | |||
| 2600 | } | |||
| 2601 | ||||
| 2602 | bool_Bool | |||
| 2603 | wtap_dump(wtap_dumper *wdh, const wtap_rec *rec, int *err, char **err_info) | |||
| 2604 | { | |||
| 2605 | *err = 0; | |||
| 2606 | *err_info = NULL((void*)0); | |||
| 2607 | return (wdh->subtype_write)(wdh, rec, err, err_info); | |||
| 2608 | } | |||
| 2609 | ||||
| 2610 | bool_Bool | |||
| 2611 | wtap_dump_flush(wtap_dumper *wdh, int *err) | |||
| 2612 | { | |||
| 2613 | switch (wdh->compression_type) { | |||
| 2614 | #if defined (HAVE_ZLIB1) || defined (HAVE_ZLIBNG) | |||
| 2615 | case WTAP_GZIP_COMPRESSED: | |||
| 2616 | if (gzwfile_flush((GZWFILE_T)wdh->fh) == -1) { | |||
| 2617 | *err = gzwfile_geterr((GZWFILE_T)wdh->fh); | |||
| 2618 | return false0; | |||
| 2619 | } | |||
| 2620 | break; | |||
| 2621 | #endif | |||
| 2622 | #ifdef HAVE_LZ4FRAME_H1 | |||
| 2623 | case WTAP_LZ4_COMPRESSED: | |||
| 2624 | if (lz4wfile_flush((LZ4WFILE_T)wdh->fh) == -1) { | |||
| 2625 | *err = lz4wfile_geterr((LZ4WFILE_T)wdh->fh); | |||
| 2626 | return false0; | |||
| 2627 | } | |||
| 2628 | break; | |||
| 2629 | #endif /* HAVE_LZ4FRAME_H */ | |||
| 2630 | default: | |||
| 2631 | if (fflush((FILE *)wdh->fh) == EOF(-1)) { | |||
| 2632 | *err = errno(*__errno_location ()); | |||
| 2633 | return false0; | |||
| 2634 | } | |||
| 2635 | } | |||
| 2636 | return true1; | |||
| 2637 | } | |||
| 2638 | ||||
| 2639 | bool_Bool | |||
| 2640 | wtap_dump_close(wtap_dumper *wdh, bool_Bool *needs_reload, | |||
| 2641 | int *err, char **err_info) | |||
| 2642 | { | |||
| 2643 | bool_Bool ret = true1; | |||
| 2644 | ||||
| 2645 | *err = 0; | |||
| 2646 | *err_info = NULL((void*)0); | |||
| 2647 | if (wdh->subtype_finish != NULL((void*)0)) { | |||
| 2648 | /* There's a finish routine for this dump stream. */ | |||
| 2649 | if (!(wdh->subtype_finish)(wdh, err, err_info)) | |||
| 2650 | ret = false0; | |||
| 2651 | } | |||
| 2652 | errno(*__errno_location ()) = WTAP_ERR_CANT_CLOSE-11; | |||
| 2653 | if (wtap_dump_file_close(wdh) == EOF(-1)) { | |||
| 2654 | if (ret) { | |||
| 2655 | /* The per-format finish function succeeded, | |||
| 2656 | but the stream close didn't. Save the | |||
| 2657 | reason why, if our caller asked for it. */ | |||
| 2658 | if (err != NULL((void*)0)) | |||
| 2659 | *err = errno(*__errno_location ()); | |||
| 2660 | } | |||
| 2661 | ret = false0; | |||
| 2662 | } | |||
| 2663 | if (needs_reload != NULL((void*)0)) | |||
| 2664 | *needs_reload = wdh->needs_reload; | |||
| 2665 | g_free(wdh->priv); | |||
| 2666 | wtap_block_array_free(wdh->interface_data); | |||
| 2667 | wtap_block_array_unref(wdh->dsbs_initial); | |||
| 2668 | g_free(wdh); | |||
| 2669 | return ret; | |||
| 2670 | } | |||
| 2671 | ||||
| 2672 | int | |||
| 2673 | wtap_dump_file_type_subtype(wtap_dumper *wdh) | |||
| 2674 | { | |||
| 2675 | return wdh->file_type_subtype; | |||
| 2676 | } | |||
| 2677 | ||||
| 2678 | int64_t | |||
| 2679 | wtap_get_bytes_dumped(wtap_dumper *wdh) | |||
| 2680 | { | |||
| 2681 | return wdh->bytes_dumped; | |||
| 2682 | } | |||
| 2683 | ||||
| 2684 | void | |||
| 2685 | wtap_set_bytes_dumped(wtap_dumper *wdh, int64_t bytes_dumped) | |||
| 2686 | { | |||
| 2687 | wdh->bytes_dumped = bytes_dumped; | |||
| 2688 | } | |||
| 2689 | ||||
| 2690 | bool_Bool | |||
| 2691 | wtap_addrinfo_list_empty(addrinfo_lists_t *addrinfo_lists) | |||
| 2692 | { | |||
| 2693 | return (addrinfo_lists == NULL((void*)0)) || | |||
| 2694 | ((addrinfo_lists->ipv4_addr_list == NULL((void*)0)) && | |||
| 2695 | (addrinfo_lists->ipv6_addr_list == NULL((void*)0))); | |||
| 2696 | } | |||
| 2697 | ||||
| 2698 | bool_Bool | |||
| 2699 | wtap_dump_set_addrinfo_list(wtap_dumper *wdh, addrinfo_lists_t *addrinfo_lists) | |||
| 2700 | { | |||
| 2701 | if (!wdh || wdh->file_type_subtype < 0 || | |||
| 2702 | wdh->file_type_subtype >= (int)file_type_subtype_table_arr->len || | |||
| 2703 | wtap_file_type_subtype_supports_block(wdh->file_type_subtype, WTAP_BLOCK_NAME_RESOLUTION) == BLOCK_NOT_SUPPORTED) | |||
| 2704 | return false0; | |||
| 2705 | wdh->addrinfo_lists = addrinfo_lists; | |||
| 2706 | return true1; | |||
| 2707 | } | |||
| 2708 | ||||
| 2709 | void | |||
| 2710 | wtap_dump_discard_name_resolution(wtap_dumper *wdh) | |||
| 2711 | { | |||
| 2712 | /* As below for DSBs. */ | |||
| 2713 | if (wdh->nrbs_growing) { | |||
| 2714 | /* | |||
| 2715 | * Pretend we've written all of them. | |||
| 2716 | */ | |||
| 2717 | wdh->nrbs_growing_written = wdh->nrbs_growing->len; | |||
| 2718 | } | |||
| 2719 | } | |||
| 2720 | ||||
| 2721 | void | |||
| 2722 | wtap_dump_discard_decryption_secrets(wtap_dumper *wdh) | |||
| 2723 | { | |||
| 2724 | /* | |||
| 2725 | * This doesn't free the data, as it might be pointed to | |||
| 2726 | * from other structures; it merely marks all of them as | |||
| 2727 | * having been written to the file, so that they don't | |||
| 2728 | * get written by wtap_dump(). | |||
| 2729 | * | |||
| 2730 | * XXX - our APIs for dealing with some metadata, such as | |||
| 2731 | * resolved names, decryption secrets, and interface | |||
| 2732 | * statistics is not very well oriented towards one-pass | |||
| 2733 | * programs; this needs to be cleaned up. See bug 15502. | |||
| 2734 | */ | |||
| 2735 | if (wdh->dsbs_growing) { | |||
| 2736 | /* | |||
| 2737 | * Pretend we've written all of them. | |||
| 2738 | */ | |||
| 2739 | wdh->dsbs_growing_written = wdh->dsbs_growing->len; | |||
| 2740 | } | |||
| 2741 | } | |||
| 2742 | ||||
| 2743 | void | |||
| 2744 | wtap_dump_discard_sysdig_meta_events(wtap_dumper *wdh) | |||
| 2745 | { | |||
| 2746 | /* As above for DSBs. */ | |||
| 2747 | if (wdh->mevs_growing) { | |||
| 2748 | /* | |||
| 2749 | * Pretend we've written all of them. | |||
| 2750 | */ | |||
| 2751 | wdh->mevs_growing_written = wdh->mevs_growing->len; | |||
| 2752 | } | |||
| 2753 | } | |||
| 2754 | ||||
| 2755 | /* internally open a file for writing (compressed or not) */ | |||
| 2756 | static WFILE_T | |||
| 2757 | wtap_dump_file_open(wtap_dumper *wdh, const char *filename) | |||
| 2758 | { | |||
| 2759 | switch (wdh->compression_type) { | |||
| 2760 | #if defined (HAVE_ZLIB1) || defined (HAVE_ZLIBNG) | |||
| 2761 | case WTAP_GZIP_COMPRESSED: | |||
| 2762 | return gzwfile_open(filename); | |||
| 2763 | #endif /* defined (HAVE_ZLIB) || defined (HAVE_ZLIBNG) */ | |||
| 2764 | #ifdef HAVE_LZ4FRAME_H1 | |||
| 2765 | case WTAP_LZ4_COMPRESSED: | |||
| 2766 | return lz4wfile_open(filename); | |||
| 2767 | #endif /* HAVE_LZ4FRAME_H */ | |||
| 2768 | default: | |||
| 2769 | return ws_fopenfopen(filename, "wb"); | |||
| 2770 | } | |||
| 2771 | } | |||
| 2772 | ||||
| 2773 | /* internally open a file for writing (compressed or not) */ | |||
| 2774 | static WFILE_T | |||
| 2775 | wtap_dump_file_fdopen(wtap_dumper *wdh, int fd) | |||
| 2776 | { | |||
| 2777 | switch (wdh->compression_type) { | |||
| 2778 | #if defined (HAVE_ZLIB1) || defined (HAVE_ZLIBNG) | |||
| 2779 | case WTAP_GZIP_COMPRESSED: | |||
| 2780 | return gzwfile_fdopen(fd); | |||
| 2781 | #endif /* defined (HAVE_ZLIB) || defined (HAVE_ZLIBNG) */ | |||
| 2782 | #ifdef HAVE_LZ4FRAME_H1 | |||
| 2783 | case WTAP_LZ4_COMPRESSED: | |||
| 2784 | return lz4wfile_fdopen(fd); | |||
| 2785 | #endif /* HAVE_LZ4FRAME_H */ | |||
| 2786 | default: | |||
| 2787 | return ws_fdopenfdopen(fd, "wb"); | |||
| 2788 | } | |||
| 2789 | } | |||
| 2790 | ||||
| 2791 | /* internally writing raw bytes (compressed or not). Updates wdh->bytes_dumped on success */ | |||
| 2792 | bool_Bool | |||
| 2793 | wtap_dump_file_write(wtap_dumper *wdh, const void *buf, size_t bufsize, int *err) | |||
| 2794 | { | |||
| 2795 | size_t nwritten; | |||
| 2796 | ||||
| 2797 | switch (wdh->compression_type) { | |||
| 2798 | #if defined (HAVE_ZLIB1) || defined (HAVE_ZLIBNG) | |||
| 2799 | case WTAP_GZIP_COMPRESSED: | |||
| 2800 | nwritten = gzwfile_write((GZWFILE_T)wdh->fh, buf, (unsigned int) bufsize); | |||
| 2801 | /* | |||
| 2802 | * gzwfile_write() returns 0 on error. | |||
| 2803 | */ | |||
| 2804 | if (nwritten == 0) { | |||
| 2805 | *err = gzwfile_geterr((GZWFILE_T)wdh->fh); | |||
| 2806 | return false0; | |||
| 2807 | } | |||
| 2808 | break; | |||
| 2809 | #endif | |||
| 2810 | #ifdef HAVE_LZ4FRAME_H1 | |||
| 2811 | case WTAP_LZ4_COMPRESSED: | |||
| 2812 | nwritten = lz4wfile_write((LZ4WFILE_T)wdh->fh, buf, bufsize); | |||
| 2813 | /* | |||
| 2814 | * lz4wfile_write() returns 0 on error. | |||
| 2815 | */ | |||
| 2816 | if (nwritten == 0) { | |||
| 2817 | *err = lz4wfile_geterr((LZ4WFILE_T)wdh->fh); | |||
| 2818 | return false0; | |||
| 2819 | } | |||
| 2820 | break; | |||
| 2821 | #endif /* HAVE_LZ4FRAME_H */ | |||
| 2822 | default: | |||
| 2823 | errno(*__errno_location ()) = WTAP_ERR_CANT_WRITE-10; | |||
| 2824 | nwritten = fwrite(buf, 1, bufsize, (FILE *)wdh->fh); | |||
| 2825 | /* | |||
| 2826 | * At least according to the macOS man page, | |||
| 2827 | * this can return a short count on an error. | |||
| 2828 | */ | |||
| 2829 | if (nwritten != bufsize) { | |||
| 2830 | if (ferror((FILE *)wdh->fh)) | |||
| 2831 | *err = errno(*__errno_location ()); | |||
| 2832 | else | |||
| 2833 | *err = WTAP_ERR_SHORT_WRITE-14; | |||
| 2834 | return false0; | |||
| 2835 | } | |||
| 2836 | } | |||
| 2837 | wdh->bytes_dumped += bufsize; | |||
| 2838 | return true1; | |||
| 2839 | } | |||
| 2840 | ||||
| 2841 | /* internally close a file for writing (compressed or not) */ | |||
| 2842 | static int | |||
| 2843 | wtap_dump_file_close(wtap_dumper *wdh) | |||
| 2844 | { | |||
| 2845 | switch (wdh->compression_type) { | |||
| 2846 | #if defined (HAVE_ZLIB1) || defined (HAVE_ZLIBNG) | |||
| 2847 | case WTAP_GZIP_COMPRESSED: | |||
| 2848 | return gzwfile_close((GZWFILE_T)wdh->fh); | |||
| 2849 | #endif | |||
| 2850 | #ifdef HAVE_LZ4FRAME_H1 | |||
| 2851 | case WTAP_LZ4_COMPRESSED: | |||
| 2852 | return lz4wfile_close((LZ4WFILE_T)wdh->fh); | |||
| 2853 | #endif /* HAVE_LZ4FRAME_H */ | |||
| 2854 | default: | |||
| 2855 | return fclose((FILE *)wdh->fh); | |||
| 2856 | } | |||
| 2857 | } | |||
| 2858 | ||||
| 2859 | int64_t | |||
| 2860 | wtap_dump_file_seek(wtap_dumper *wdh, int64_t offset, int whence, int *err) | |||
| 2861 | { | |||
| 2862 | #if defined (HAVE_ZLIB1) || defined (HAVE_ZLIBNG) || defined (HAVE_LZ4FRAME_H1) | |||
| 2863 | if (wdh->compression_type != WTAP_UNCOMPRESSED) { | |||
| 2864 | *err = WTAP_ERR_CANT_SEEK_COMPRESSED-19; | |||
| 2865 | return -1; | |||
| 2866 | } else | |||
| 2867 | #endif | |||
| 2868 | { | |||
| 2869 | if (-1 == ws_fseek64fseeko((FILE *)wdh->fh, offset, whence)) { | |||
| 2870 | *err = errno(*__errno_location ()); | |||
| 2871 | return -1; | |||
| 2872 | } else | |||
| 2873 | { | |||
| 2874 | return 0; | |||
| 2875 | } | |||
| 2876 | } | |||
| 2877 | } | |||
| 2878 | ||||
| 2879 | int64_t | |||
| 2880 | wtap_dump_file_tell(wtap_dumper *wdh, int *err) | |||
| 2881 | { | |||
| 2882 | int64_t rval; | |||
| 2883 | #if defined (HAVE_ZLIB1) || defined (HAVE_ZLIBNG) || defined (HAVE_LZ4FRAME_H1) | |||
| 2884 | if (wdh->compression_type != WTAP_UNCOMPRESSED) { | |||
| 2885 | *err = WTAP_ERR_CANT_SEEK_COMPRESSED-19; | |||
| 2886 | return -1; | |||
| 2887 | } else | |||
| 2888 | #endif | |||
| 2889 | { | |||
| 2890 | if (-1 == (rval = ws_ftell64ftello((FILE *)wdh->fh))) { | |||
| 2891 | *err = errno(*__errno_location ()); | |||
| 2892 | return -1; | |||
| 2893 | } else | |||
| 2894 | { | |||
| 2895 | return rval; | |||
| 2896 | } | |||
| 2897 | } | |||
| 2898 | } | |||
| 2899 | ||||
| 2900 | void | |||
| 2901 | cleanup_open_routines(void) | |||
| 2902 | { | |||
| 2903 | unsigned i; | |||
| 2904 | struct open_info *i_open; | |||
| 2905 | ||||
| 2906 | if (open_routines != NULL((void*)0) && open_info_arr) { | |||
| 2907 | for (i = 0, i_open = open_routines; i < open_info_arr->len; i++, i_open++) { | |||
| 2908 | if (i_open->extensions != NULL((void*)0)) | |||
| 2909 | g_strfreev(i_open->extensions_set); | |||
| 2910 | } | |||
| 2911 | ||||
| 2912 | g_array_free(open_info_arr, true1); | |||
| 2913 | open_info_arr = NULL((void*)0); | |||
| 2914 | } | |||
| 2915 | } | |||
| 2916 | ||||
| 2917 | /* | |||
| 2918 | * Allow built-in file handlers (but *not* plugin file handlers!) to | |||
| 2919 | * register a "backwards-compatibility" name and file type value, to | |||
| 2920 | * put in the Lua wtap_filetypes table. | |||
| 2921 | * | |||
| 2922 | * This is only to be used as long as we have that table; new Lua | |||
| 2923 | * code should use wtap_name_to_file_type_subtype() to look up | |||
| 2924 | * file types by their name, just as C code should. | |||
| 2925 | * | |||
| 2926 | * The backwards-ccmpatibility names are the old WTAP_FILE_TYPE_SUBTYPE_ | |||
| 2927 | * #define name, with WTAP_FILE_TYPE_SUBTYPE_ removed. | |||
| 2928 | */ | |||
| 2929 | ||||
| 2930 | static GArray *backwards_compatibility_lua_names; | |||
| 2931 | ||||
| 2932 | void | |||
| 2933 | // NOLINTNEXTLINE(misc-no-recursion) | |||
| 2934 | wtap_register_backwards_compatibility_lua_name(const char *name, int ft) | |||
| 2935 | { | |||
| 2936 | struct backwards_compatibiliity_lua_name entry; | |||
| 2937 | ||||
| 2938 | /* | |||
| 2939 | * Create the table if it doesn't already exist. | |||
| 2940 | * Use the same size as we do for the file type/subtype table. | |||
| 2941 | */ | |||
| 2942 | if (backwards_compatibility_lua_names == NULL((void*)0)) { | |||
| 2943 | backwards_compatibility_lua_names = g_array_sized_new(false0, | |||
| 2944 | true1, sizeof(struct backwards_compatibiliity_lua_name), | |||
| 2945 | wtap_module_count*2); | |||
| 2946 | ||||
| 2947 | /* | |||
| 2948 | * Extra backwards compatibility hack - add entries | |||
| 2949 | * for time stamp precision values(!), as well as | |||
| 2950 | * for "UNKNOWN" and types that don't yet register | |||
| 2951 | * themselves. | |||
| 2952 | * | |||
| 2953 | * If new WS_TSPREC_ value are added, don't bother | |||
| 2954 | * adding them to this table; any Lua program that | |||
| 2955 | * would use them should use the wtap_tsprecs type. | |||
| 2956 | * | |||
| 2957 | * (Recursion: see "recursion".) | |||
| 2958 | */ | |||
| 2959 | wtap_register_backwards_compatibility_lua_name("TSPREC_SEC", | |||
| 2960 | WTAP_TSPREC_SEC0); | |||
| 2961 | wtap_register_backwards_compatibility_lua_name("TSPREC_DSEC", | |||
| 2962 | WTAP_TSPREC_100_MSEC1); | |||
| 2963 | wtap_register_backwards_compatibility_lua_name("TSPREC_CSEC", | |||
| 2964 | WTAP_TSPREC_10_MSEC2); | |||
| 2965 | wtap_register_backwards_compatibility_lua_name("TSPREC_MSEC", | |||
| 2966 | WTAP_TSPREC_MSEC3); | |||
| 2967 | wtap_register_backwards_compatibility_lua_name("TSPREC_USEC", | |||
| 2968 | WTAP_TSPREC_USEC6); | |||
| 2969 | wtap_register_backwards_compatibility_lua_name("TSPREC_NSEC", | |||
| 2970 | WTAP_TSPREC_NSEC9); | |||
| 2971 | wtap_register_backwards_compatibility_lua_name("UNKNOWN", | |||
| 2972 | WTAP_FILE_TYPE_SUBTYPE_UNKNOWN-1); | |||
| 2973 | } | |||
| 2974 | entry.name = name; | |||
| 2975 | entry.ft = ft; | |||
| 2976 | g_array_append_val(backwards_compatibility_lua_names, entry)g_array_append_vals (backwards_compatibility_lua_names, & (entry), 1); | |||
| 2977 | } | |||
| 2978 | ||||
| 2979 | const GArray * | |||
| 2980 | get_backwards_compatibility_lua_table(void) | |||
| 2981 | { | |||
| 2982 | return backwards_compatibility_lua_names; | |||
| 2983 | } | |||
| 2984 | ||||
| 2985 | /* | |||
| 2986 | * Editor modelines - https://www.wireshark.org/tools/modelines.html | |||
| 2987 | * | |||
| 2988 | * Local variables: | |||
| 2989 | * c-basic-offset: 8 | |||
| 2990 | * tab-width: 8 | |||
| 2991 | * indent-tabs-mode: t | |||
| 2992 | * End: | |||
| 2993 | * | |||
| 2994 | * vi: set shiftwidth=8 tabstop=8 noexpandtab: | |||
| 2995 | * :indentSize=8:tabSize=8:noTabs=false: | |||
| 2996 | */ |