| File: | builds/wireshark/wireshark/tshark.c |
| Warning: | line 3281, column 21 Value stored to 'ret' is never read |
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| 1 | /* tshark.c |
| 2 | * |
| 3 | * Text-mode variant of Wireshark, along the lines of tcpdump and snoop, |
| 4 | * by Gilbert Ramirez <gram@alumni.rice.edu> and Guy Harris <guy@alum.mit.edu>. |
| 5 | * |
| 6 | * Wireshark - Network traffic analyzer |
| 7 | * By Gerald Combs <gerald@wireshark.org> |
| 8 | * Copyright 1998 Gerald Combs |
| 9 | * |
| 10 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 11 | */ |
| 12 | |
| 13 | #include <config.h> |
| 14 | |
| 15 | #define WS_LOG_DOMAIN"Main" LOG_DOMAIN_MAIN"Main" |
| 16 | |
| 17 | #include <stdlib.h> |
| 18 | #include <stdio.h> |
| 19 | #include <string.h> |
| 20 | #include <locale.h> |
| 21 | #include <limits.h> |
| 22 | |
| 23 | #include <wsutil/ws_getopt.h> |
| 24 | |
| 25 | #include <errno(*__errno_location ()).h> |
| 26 | |
| 27 | #ifdef _WIN32 |
| 28 | # include <winsock2.h> |
| 29 | #endif |
| 30 | |
| 31 | #ifndef _WIN32 |
| 32 | #include <signal.h> |
| 33 | #endif |
| 34 | |
| 35 | #include <glib.h> |
| 36 | |
| 37 | #include <epan/exceptions.h> |
| 38 | #include <epan/epan.h> |
| 39 | |
| 40 | #include <ws_exit_codes.h> |
| 41 | #include <wsutil/clopts_common.h> |
| 42 | #include <wsutil/cmdarg_err.h> |
| 43 | #include <ui/urls.h> |
| 44 | #include <wsutil/filesystem.h> |
| 45 | #include <wsutil/file_util.h> |
| 46 | #include <wsutil/time_util.h> |
| 47 | #include <wsutil/socket.h> |
| 48 | #include <wsutil/privileges.h> |
| 49 | #include <wsutil/please_report_bug.h> |
| 50 | #include <wsutil/wslog.h> |
| 51 | #include <wsutil/ws_assert.h> |
| 52 | #include <wsutil/strtoi.h> |
| 53 | #include <wsutil/report_message.h> |
| 54 | #include <app/application_flavor.h> |
| 55 | #include <wsutil/path_config.h> |
| 56 | #include <cli_main.h> |
| 57 | #include <wsutil/version_info.h> |
| 58 | #include <wiretap/wtap_opttypes.h> |
| 59 | |
| 60 | #include "globals.h" |
| 61 | #include <epan/timestamp.h> |
| 62 | #include <epan/packet.h> |
| 63 | #ifdef HAVE_LUA1 |
| 64 | #include <epan/wslua/init_wslua.h> |
| 65 | #endif |
| 66 | #include <epan/disabled_protos.h> |
| 67 | #include <epan/prefs.h> |
| 68 | #include <epan/column.h> |
| 69 | #include <epan/decode_as.h> |
| 70 | #include <epan/print.h> |
| 71 | #include <epan/addr_resolv.h> |
| 72 | #include <epan/iana-info.h> |
| 73 | #include <epan/manuf.h> |
| 74 | #include <epan/secrets.h> |
| 75 | #ifdef HAVE_LIBPCAP1 |
| 76 | #include "ui/capture_ui_utils.h" |
| 77 | #endif |
| 78 | #include "ui/taps.h" |
| 79 | #include "ui/util.h" |
| 80 | #include "ui/ws_ui_util.h" |
| 81 | #include "ui/decode_as_utils.h" |
| 82 | #include "wsutil/filter_files.h" |
| 83 | #include "ui/cli/tshark-tap.h" |
| 84 | #include "ui/cli/tap-exportobject.h" |
| 85 | #include "ui/tap_export_pdu.h" |
| 86 | #include "ui/dissect_opts.h" |
| 87 | #include "ui/failure_message.h" |
| 88 | #include "ui/capture_opts.h" |
| 89 | #if defined(HAVE_LIBSMI1) |
| 90 | #include "epan/oids.h" |
| 91 | #endif |
| 92 | #include "epan/maxmind_db.h" |
| 93 | #include <epan/epan_dissect.h> |
| 94 | #include <epan/tap.h> |
| 95 | #include <epan/stat_tap_ui.h> |
| 96 | #include <epan/conversation_table.h> |
| 97 | #include <epan/srt_table.h> |
| 98 | #include <epan/rtd_table.h> |
| 99 | #include <epan/ex-opt.h> |
| 100 | #include <epan/exported_pdu.h> |
| 101 | #include <epan/secrets.h> |
| 102 | |
| 103 | #include "capture/capture-pcap-util.h" |
| 104 | |
| 105 | #ifdef HAVE_LIBPCAP1 |
| 106 | #include "capture/capture_ifinfo.h" |
| 107 | #ifdef _WIN32 |
| 108 | #include "capture/capture-wpcap.h" |
| 109 | #endif /* _WIN32 */ |
| 110 | #include <capture/capture_session.h> |
| 111 | #include <capture/capture_sync.h> |
| 112 | #include <ui/capture_info.h> |
| 113 | #endif /* HAVE_LIBPCAP */ |
| 114 | #include <epan/funnel.h> |
| 115 | |
| 116 | #include <wsutil/str_util.h> |
| 117 | #include <wsutil/utf8_entities.h> |
| 118 | #include <wsutil/json_dumper.h> |
| 119 | #include <wsutil/wslog.h> |
| 120 | #ifdef _WIN32 |
| 121 | #include <wsutil/win32-utils.h> |
| 122 | #endif |
| 123 | |
| 124 | #include "extcap.h" |
| 125 | |
| 126 | #ifdef HAVE_PLUGINS1 |
| 127 | #include <wsutil/codecs.h> |
| 128 | #include <wsutil/plugins.h> |
| 129 | #endif |
| 130 | |
| 131 | /* Additional exit codes */ |
| 132 | #define INVALID_EXPORT2 2 |
| 133 | #define INVALID_TAP2 2 |
| 134 | #define INVALID_CAPTURE2 2 |
| 135 | |
| 136 | #define LONGOPT_EXPORT_OBJECTS3000 +1 LONGOPT_BASE_APPLICATION3000+1 |
| 137 | #define LONGOPT_COLOR3000 +2 LONGOPT_BASE_APPLICATION3000+2 |
| 138 | #define LONGOPT_NO_DUPLICATE_KEYS3000 +3 LONGOPT_BASE_APPLICATION3000+3 |
| 139 | #define LONGOPT_ELASTIC_MAPPING_FILTER3000 +4 LONGOPT_BASE_APPLICATION3000+4 |
| 140 | #define LONGOPT_EXPORT_TLS_SESSION_KEYS3000 +5 LONGOPT_BASE_APPLICATION3000+5 |
| 141 | #define LONGOPT_CAPTURE_COMMENT3000 +6 LONGOPT_BASE_APPLICATION3000+6 |
| 142 | #define LONGOPT_HEXDUMP3000 +7 LONGOPT_BASE_APPLICATION3000+7 |
| 143 | #define LONGOPT_SELECTED_FRAME3000 +8 LONGOPT_BASE_APPLICATION3000+8 |
| 144 | #define LONGOPT_PRINT_TIMERS3000 +9 LONGOPT_BASE_APPLICATION3000+9 |
| 145 | #define LONGOPT_GLOBAL_PROFILE3000 +10 LONGOPT_BASE_APPLICATION3000+10 |
| 146 | #define LONGOPT_COMPRESS3000 +11 LONGOPT_BASE_APPLICATION3000+11 |
| 147 | |
| 148 | capture_file cfile; |
| 149 | |
| 150 | static uint32_t cum_bytes; |
| 151 | static frame_data ref_frame; |
| 152 | static frame_data prev_dis_frame; |
| 153 | static frame_data prev_cap_frame; |
| 154 | |
| 155 | static bool_Bool perform_two_pass_analysis; |
| 156 | static uint32_t epan_auto_reset_count; |
| 157 | static bool_Bool epan_auto_reset; |
| 158 | |
| 159 | static uint32_t selected_frame_number; |
| 160 | |
| 161 | /* |
| 162 | * The way the packet decode is to be written. |
| 163 | */ |
| 164 | typedef enum { |
| 165 | WRITE_NONE, /* dummy initial state */ |
| 166 | WRITE_TEXT, /* summary or detail text */ |
| 167 | WRITE_XML, /* PDML or PSML */ |
| 168 | WRITE_FIELDS, /* User defined list of fields */ |
| 169 | WRITE_JSON, /* JSON */ |
| 170 | WRITE_JSON_RAW, /* JSON only raw hex */ |
| 171 | WRITE_EK /* JSON bulk insert to Elasticsearch */ |
| 172 | /* Add CSV and the like here */ |
| 173 | } output_action_e; |
| 174 | |
| 175 | static output_action_e output_action; |
| 176 | static bool_Bool do_dissection; /* true if we have to dissect each packet */ |
| 177 | static bool_Bool print_packet_info; /* true if we're to print packet information */ |
| 178 | static bool_Bool print_summary; /* true if we're to print packet summary information */ |
| 179 | static bool_Bool print_details; /* true if we're to print packet details information */ |
| 180 | static bool_Bool print_hex; /* true if we're to print hex/ascii information */ |
| 181 | static bool_Bool line_buffered; |
| 182 | static bool_Bool quiet; |
| 183 | static bool_Bool really_quiet; |
| 184 | static char* delimiter_char = " "; |
| 185 | static bool_Bool dissect_color; |
| 186 | static unsigned hexdump_source_option = HEXDUMP_SOURCE_MULTI(0x0000U); /* Default - Enable legacy multi-source mode */ |
| 187 | static unsigned hexdump_ascii_option = HEXDUMP_ASCII_INCLUDE(0x0000U); /* Default - Enable legacy undelimited ASCII dump */ |
| 188 | static unsigned hexdump_timestamp_option = HEXDUMP_TIMESTAMP_NONE(0x0000U); /* Default - no timestamp preamble */ |
| 189 | |
| 190 | static print_format_e print_format = PR_FMT_TEXT; |
| 191 | static print_stream_t *print_stream; |
| 192 | |
| 193 | static char *output_file_name; |
| 194 | |
| 195 | static output_fields_t* output_fields; |
| 196 | |
| 197 | static bool_Bool no_duplicate_keys; |
| 198 | static proto_node_children_grouper_func node_children_grouper = proto_node_group_children_by_unique; |
| 199 | |
| 200 | static json_dumper jdumper; |
| 201 | |
| 202 | /* The line separator used between packets, changeable via the -S option */ |
| 203 | static const char *separator = ""; |
| 204 | |
| 205 | /* Per-file comments to be added to the output file. */ |
| 206 | static GPtrArray *capture_comments; |
| 207 | |
| 208 | static bool_Bool prefs_loaded; |
| 209 | |
| 210 | #ifdef HAVE_LIBPCAP1 |
| 211 | /* |
| 212 | * true if we're to print packet counts to keep track of captured packets. |
| 213 | */ |
| 214 | static bool_Bool print_packet_counts; |
| 215 | |
| 216 | static capture_options global_capture_opts; |
| 217 | static capture_session global_capture_session; |
| 218 | static info_data_t global_info_data; |
| 219 | |
| 220 | #ifdef SIGINFO |
| 221 | static bool_Bool infodelay; /* if true, don't print capture info in SIGINFO handler */ |
| 222 | static bool_Bool infoprint; /* if true, print capture info after clearing infodelay */ |
| 223 | #endif /* SIGINFO */ |
| 224 | |
| 225 | static bool_Bool capture(void); |
| 226 | static bool_Bool capture_input_new_file(capture_session *cap_session, |
| 227 | char *new_file); |
| 228 | static void capture_input_new_packets(capture_session *cap_session, |
| 229 | int to_read); |
| 230 | static void capture_input_drops(capture_session *cap_session, uint32_t dropped, |
| 231 | const char* interface_name); |
| 232 | static void capture_input_error(capture_session *cap_session, |
| 233 | char *error_msg, char *secondary_error_msg); |
| 234 | static void capture_input_cfilter_error(capture_session *cap_session, |
| 235 | unsigned i, const char *error_message); |
| 236 | static void capture_input_closed(capture_session *cap_session, char *msg); |
| 237 | |
| 238 | static void report_counts(void); |
| 239 | #ifdef _WIN32 |
| 240 | static BOOL WINAPI capture_cleanup(DWORD); |
| 241 | #else /* _WIN32 */ |
| 242 | static void capture_cleanup(int); |
| 243 | #ifdef SIGINFO |
| 244 | static void report_counts_siginfo(int); |
| 245 | #endif /* SIGINFO */ |
| 246 | #endif /* _WIN32 */ |
| 247 | #endif /* HAVE_LIBPCAP */ |
| 248 | |
| 249 | static void reset_epan_mem(capture_file *cf, epan_dissect_t *edt, bool_Bool tree, bool_Bool visual); |
| 250 | |
| 251 | typedef enum { |
| 252 | PROCESS_FILE_SUCCEEDED, |
| 253 | PROCESS_FILE_NO_FILE_PROCESSED, |
| 254 | PROCESS_FILE_ERROR, |
| 255 | PROCESS_FILE_INTERRUPTED |
| 256 | } process_file_status_t; |
| 257 | static process_file_status_t process_cap_file(capture_file *, char *, int, bool_Bool, int, int64_t, int, ws_compression_type); |
| 258 | |
| 259 | typedef enum { |
| 260 | PROCESS_PACKET_PASSED, |
| 261 | PROCESS_PACKET_DIDNT_PASS, |
| 262 | PROCESS_PACKET_PRINT_ERROR |
| 263 | } process_packet_status_t; |
| 264 | static process_packet_status_t process_packet_single_pass(capture_file *cf, |
| 265 | epan_dissect_t *edt, int64_t offset, wtap_rec *rec, unsigned tap_flags); |
| 266 | static void show_print_file_io_error(void); |
| 267 | static bool_Bool write_preamble(capture_file *cf); |
| 268 | static bool_Bool print_packet(capture_file *cf, epan_dissect_t *edt); |
| 269 | static bool_Bool write_finale(void); |
| 270 | |
| 271 | static GHashTable *output_only_tables; |
| 272 | |
| 273 | static bool_Bool opt_print_timers; |
| 274 | struct elapsed_pass_s { |
| 275 | int64_t dissect; |
| 276 | int64_t dfilter_read; |
| 277 | int64_t dfilter_filter; |
| 278 | }; |
| 279 | static struct { |
| 280 | int64_t dfilter_expand; |
| 281 | int64_t dfilter_compile; |
| 282 | struct elapsed_pass_s first_pass; |
| 283 | int64_t elapsed_first_pass; |
| 284 | struct elapsed_pass_s second_pass; |
| 285 | int64_t elapsed_second_pass; |
| 286 | } |
| 287 | tshark_elapsed; |
| 288 | |
| 289 | static void |
| 290 | print_elapsed_json(const char *cf_name, const char *dfilter) |
| 291 | { |
| 292 | json_dumper dumper = { |
| 293 | .output_file = stderrstderr, |
| 294 | .flags = JSON_DUMPER_FLAGS_PRETTY_PRINT(1 << 0), |
| 295 | }; |
| 296 | |
| 297 | if (tshark_elapsed.elapsed_first_pass == 0) { |
| 298 | // Should not happen |
| 299 | ws_warning("Print timers requested but no timing info provided")do { if (1) { ws_log_full("Main", LOG_LEVEL_WARNING, "tshark.c" , 299, __func__, "Print timers requested but no timing info provided" ); } } while (0); |
| 300 | return; |
| 301 | } |
| 302 | |
| 303 | #define DUMP(name, val)json_dumper_set_member_name(&dumper, name); json_dumper_value_anyf (&dumper, "%""l" "d", val) \ |
| 304 | json_dumper_set_member_name(&dumper, name); \ |
| 305 | json_dumper_value_anyf(&dumper, "%"PRId64"l" "d", val) |
| 306 | |
| 307 | json_dumper_begin_object(&dumper); |
| 308 | json_dumper_set_member_name(&dumper, "version"); |
| 309 | json_dumper_value_string(&dumper, application_get_vcs_version_info_short()); |
| 310 | if (cf_name) { |
| 311 | json_dumper_set_member_name(&dumper, "path"); |
| 312 | json_dumper_value_string(&dumper, cf_name); |
| 313 | } |
| 314 | if (dfilter) { |
| 315 | json_dumper_set_member_name(&dumper, "filter"); |
| 316 | json_dumper_value_string(&dumper, dfilter); |
| 317 | } |
| 318 | json_dumper_set_member_name(&dumper, "time_unit"); |
| 319 | json_dumper_value_string(&dumper, "microseconds"); |
| 320 | DUMP("elapsed", tshark_elapsed.elapsed_first_pass +json_dumper_set_member_name(&dumper, "elapsed"); json_dumper_value_anyf (&dumper, "%""l" "d", tshark_elapsed.elapsed_first_pass + tshark_elapsed.elapsed_second_pass) |
| 321 | tshark_elapsed.elapsed_second_pass)json_dumper_set_member_name(&dumper, "elapsed"); json_dumper_value_anyf (&dumper, "%""l" "d", tshark_elapsed.elapsed_first_pass + tshark_elapsed.elapsed_second_pass); |
| 322 | DUMP("dfilter_expand", tshark_elapsed.dfilter_expand)json_dumper_set_member_name(&dumper, "dfilter_expand"); json_dumper_value_anyf (&dumper, "%""l" "d", tshark_elapsed.dfilter_expand); |
| 323 | DUMP("dfilter_compile", tshark_elapsed.dfilter_compile)json_dumper_set_member_name(&dumper, "dfilter_compile"); json_dumper_value_anyf (&dumper, "%""l" "d", tshark_elapsed.dfilter_compile); |
| 324 | json_dumper_begin_array(&dumper); |
| 325 | json_dumper_begin_object(&dumper); |
| 326 | DUMP("elapsed", tshark_elapsed.elapsed_first_pass)json_dumper_set_member_name(&dumper, "elapsed"); json_dumper_value_anyf (&dumper, "%""l" "d", tshark_elapsed.elapsed_first_pass); |
| 327 | DUMP("dissect", tshark_elapsed.first_pass.dissect)json_dumper_set_member_name(&dumper, "dissect"); json_dumper_value_anyf (&dumper, "%""l" "d", tshark_elapsed.first_pass.dissect); |
| 328 | DUMP("display_filter", tshark_elapsed.first_pass.dfilter_filter)json_dumper_set_member_name(&dumper, "display_filter"); json_dumper_value_anyf (&dumper, "%""l" "d", tshark_elapsed.first_pass.dfilter_filter ); |
| 329 | DUMP("read_filter", tshark_elapsed.first_pass.dfilter_read)json_dumper_set_member_name(&dumper, "read_filter"); json_dumper_value_anyf (&dumper, "%""l" "d", tshark_elapsed.first_pass.dfilter_read ); |
| 330 | json_dumper_end_object(&dumper); |
| 331 | if (tshark_elapsed.elapsed_second_pass) { |
| 332 | json_dumper_begin_object(&dumper); |
| 333 | DUMP("elapsed", tshark_elapsed.elapsed_second_pass)json_dumper_set_member_name(&dumper, "elapsed"); json_dumper_value_anyf (&dumper, "%""l" "d", tshark_elapsed.elapsed_second_pass); |
| 334 | DUMP("dissect", tshark_elapsed.second_pass.dissect)json_dumper_set_member_name(&dumper, "dissect"); json_dumper_value_anyf (&dumper, "%""l" "d", tshark_elapsed.second_pass.dissect); |
| 335 | DUMP("display_filter", tshark_elapsed.second_pass.dfilter_filter)json_dumper_set_member_name(&dumper, "display_filter"); json_dumper_value_anyf (&dumper, "%""l" "d", tshark_elapsed.second_pass.dfilter_filter ); |
| 336 | DUMP("read_filter", tshark_elapsed.second_pass.dfilter_read)json_dumper_set_member_name(&dumper, "read_filter"); json_dumper_value_anyf (&dumper, "%""l" "d", tshark_elapsed.second_pass.dfilter_read ); |
| 337 | json_dumper_end_object(&dumper); |
| 338 | } |
| 339 | json_dumper_end_array(&dumper); |
| 340 | json_dumper_end_object(&dumper); |
| 341 | json_dumper_finish(&dumper); |
| 342 | } |
| 343 | |
| 344 | static void |
| 345 | list_capture_types(void) |
| 346 | { |
| 347 | GArray *writable_type_subtypes; |
| 348 | |
| 349 | fprintf(stderrstderr, "tshark: The available capture file types for the \"-F\" flag are:\n"); |
| 350 | writable_type_subtypes = wtap_get_writable_file_types_subtypes(FT_SORT_BY_NAME); |
| 351 | for (unsigned i = 0; i < writable_type_subtypes->len; i++) { |
| 352 | int ft = g_array_index(writable_type_subtypes, int, i)(((int*) (void *) (writable_type_subtypes)->data) [(i)]); |
| 353 | fprintf(stderrstderr, " %s - %s\n", wtap_file_type_subtype_name(ft), |
| 354 | wtap_file_type_subtype_description(ft)); |
| 355 | } |
| 356 | g_array_free(writable_type_subtypes, TRUE(!(0))); |
| 357 | } |
| 358 | |
| 359 | static void |
| 360 | list_output_compression_types(void) { |
| 361 | GSList *output_compression_types; |
| 362 | |
| 363 | cmdarg_err("The available output compression type(s) are:"); |
| 364 | output_compression_types = ws_get_all_output_compression_type_names_list(); |
| 365 | for (GSList *compression_type = output_compression_types; |
| 366 | compression_type != NULL((void*)0); |
| 367 | compression_type = g_slist_next(compression_type)((compression_type) ? (((GSList *)(compression_type))->next ) : ((void*)0))) { |
| 368 | cmdarg_err_cont(" %s", (const char *)compression_type->data); |
| 369 | } |
| 370 | |
| 371 | g_slist_free(output_compression_types); |
| 372 | } |
| 373 | |
| 374 | struct string_elem { |
| 375 | const char *sstr; /* The short string */ |
| 376 | const char *lstr; /* The long string */ |
| 377 | }; |
| 378 | |
| 379 | static int |
| 380 | string_compare(const void *a, const void *b) |
| 381 | { |
| 382 | return strcmp(((const struct string_elem *)a)->sstr, |
| 383 | ((const struct string_elem *)b)->sstr); |
| 384 | } |
| 385 | |
| 386 | static void |
| 387 | string_elem_print(void *data) |
| 388 | { |
| 389 | fprintf(stderrstderr, " %s - %s\n", |
| 390 | ((struct string_elem *)data)->sstr, |
| 391 | ((struct string_elem *)data)->lstr); |
| 392 | } |
| 393 | |
| 394 | static void |
| 395 | list_read_capture_types(void) |
| 396 | { |
| 397 | unsigned i; |
| 398 | size_t num_file_types; |
| 399 | struct string_elem *captypes; |
| 400 | GSList *list = NULL((void*)0); |
| 401 | const char *magic = "Magic-value-based"; |
| 402 | const char *heuristic = "Heuristics-based"; |
| 403 | |
| 404 | /* How many readable file types are there? */ |
| 405 | num_file_types = 0; |
| 406 | for (i = 0; open_routines[i].name != NULL((void*)0); i++) |
| 407 | num_file_types++; |
| 408 | captypes = g_new(struct string_elem, num_file_types)((struct string_elem *) g_malloc_n ((num_file_types), sizeof ( struct string_elem))); |
| 409 | |
| 410 | fprintf(stderrstderr, "tshark: The available read file types for the \"-X read_format:\" option are:\n"); |
| 411 | for (i = 0; i < num_file_types && open_routines[i].name != NULL((void*)0); i++) { |
| 412 | captypes[i].sstr = open_routines[i].name; |
| 413 | captypes[i].lstr = (open_routines[i].type == OPEN_INFO_MAGIC) ? magic : heuristic; |
| 414 | list = g_slist_insert_sorted(list, &captypes[i], string_compare); |
| 415 | } |
| 416 | g_slist_free_full(list, string_elem_print); |
| 417 | g_free(captypes); |
| 418 | } |
| 419 | |
| 420 | static void |
| 421 | list_export_pdu_taps(void) |
| 422 | { |
| 423 | fprintf(stderrstderr, "tshark: The available export tap names and the encapsulation types they produce for the \"-U tap_name\" option are:\n"); |
| 424 | for (GSList *export_pdu_tap_name_list = get_export_pdu_tap_list(); |
| 425 | export_pdu_tap_name_list != NULL((void*)0); |
| 426 | export_pdu_tap_name_list = g_slist_next(export_pdu_tap_name_list)((export_pdu_tap_name_list) ? (((GSList *)(export_pdu_tap_name_list ))->next) : ((void*)0))) { |
| 427 | fprintf(stderrstderr, " %s - %s\n", (const char*)(export_pdu_tap_name_list->data), wtap_encap_description(export_pdu_tap_get_encap((const char*)export_pdu_tap_name_list->data))); |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | static void |
| 432 | print_usage(FILE *output) |
| 433 | { |
| 434 | fprintf(output, "\n"); |
| 435 | fprintf(output, "Usage: tshark [options] ...\n"); |
| 436 | fprintf(output, "\n"); |
| 437 | |
| 438 | #ifdef HAVE_LIBPCAP1 |
| 439 | fprintf(output, "Capture interface:\n"); |
| 440 | fprintf(output, " -i <interface>, --interface <interface>\n"); |
| 441 | fprintf(output, " name or idx of interface (def: first non-loopback)\n"); |
| 442 | fprintf(output, " -f <capture filter> packet filter in libpcap filter syntax\n"); |
| 443 | fprintf(output, " -s <snaplen>, --snapshot-length <snaplen>\n"); |
| 444 | fprintf(output, " packet snapshot length (def: appropriate maximum)\n"); |
| 445 | fprintf(output, " -p, --no-promiscuous-mode\n"); |
| 446 | fprintf(output, " don't capture in promiscuous mode\n"); |
| 447 | fprintf(output, " -I, --monitor-mode capture in monitor mode, if available\n"); |
| 448 | fprintf(output, " -B <buffer size>, --buffer-size <buffer size>\n"); |
| 449 | fprintf(output, " size of kernel buffer in MiB (def: %dMiB)\n", DEFAULT_CAPTURE_BUFFER_SIZE2); |
| 450 | fprintf(output, " -y <link type>, --linktype <link type>\n"); |
| 451 | fprintf(output, " link layer type (def: first appropriate)\n"); |
| 452 | fprintf(output, " --time-stamp-type <type> timestamp method for interface\n"); |
| 453 | fprintf(output, " -D, --list-interfaces print list of interfaces and exit\n"); |
| 454 | fprintf(output, " -L, --list-data-link-types\n"); |
| 455 | fprintf(output, " print list of link-layer types of iface and exit\n"); |
| 456 | fprintf(output, " --list-time-stamp-types print list of timestamp types for iface and exit\n"); |
| 457 | fprintf(output, " --no-optimize do not optimize capture filter\n"); |
| 458 | fprintf(output, "\n"); |
| 459 | fprintf(output, "Capture display:\n"); |
| 460 | fprintf(output, " --update-interval interval between updates with new packets, in milliseconds (def: %dms)\n", DEFAULT_UPDATE_INTERVAL100); |
| 461 | fprintf(output, "Capture stop conditions:\n"); |
| 462 | fprintf(output, " -c <packet count> stop after n packets (def: infinite)\n"); |
| 463 | fprintf(output, " -a <autostop cond.> ..., --autostop <autostop cond.> ...\n"); |
| 464 | fprintf(output, " duration:NUM - stop after NUM seconds\n"); |
| 465 | fprintf(output, " filesize:NUM - stop this file after NUM KB\n"); |
| 466 | fprintf(output, " files:NUM - stop after NUM files\n"); |
| 467 | fprintf(output, " packets:NUM - stop after NUM packets\n"); |
| 468 | /*fprintf(output, "\n");*/ |
| 469 | fprintf(output, "Capture output:\n"); |
| 470 | fprintf(output, " -b <ringbuffer opt.> ..., --ring-buffer <ringbuffer opt.>\n"); |
| 471 | fprintf(output, " duration:NUM - switch to next file after NUM secs\n"); |
| 472 | fprintf(output, " filesize:NUM - switch to next file after NUM KB\n"); |
| 473 | fprintf(output, " files:NUM - ringbuffer: replace after NUM files\n"); |
| 474 | fprintf(output, " packets:NUM - switch to next file after NUM packets\n"); |
| 475 | fprintf(output, " interval:NUM - switch to next file when the time is\n"); |
| 476 | fprintf(output, " an exact multiple of NUM secs\n"); |
| 477 | fprintf(output, " printname:FILE - print filename to FILE when written\n"); |
| 478 | fprintf(output, " (can use 'stdout' or 'stderr')\n"); |
| 479 | #endif /* HAVE_LIBPCAP */ |
| 480 | #ifdef HAVE_PCAP_REMOTE |
| 481 | fprintf(output, "RPCAP options:\n"); |
| 482 | fprintf(output, " -A <user>:<password> use RPCAP password authentication\n"); |
| 483 | #endif |
| 484 | /*fprintf(output, "\n");*/ |
| 485 | fprintf(output, "Input file:\n"); |
| 486 | fprintf(output, " -r <infile>, --read-file <infile>\n"); |
| 487 | fprintf(output, " set the filename to read from (or '-' for stdin)\n"); |
| 488 | |
| 489 | fprintf(output, "\n"); |
| 490 | fprintf(output, "Processing:\n"); |
| 491 | fprintf(output, " -2 perform a two-pass analysis\n"); |
| 492 | fprintf(output, " -M <packet count> perform session auto reset\n"); |
| 493 | fprintf(output, " -R <read filter>, --read-filter <read filter>\n"); |
| 494 | fprintf(output, " packet Read filter in Wireshark display filter syntax\n"); |
| 495 | fprintf(output, " (requires -2)\n"); |
| 496 | fprintf(output, " -Y <display filter>, --display-filter <display filter>\n"); |
| 497 | fprintf(output, " packet displaY filter in Wireshark display filter\n"); |
| 498 | fprintf(output, " syntax\n"); |
| 499 | fprintf(output, " -n disable all name resolutions (def: \"mNd\" enabled, or\n"); |
| 500 | fprintf(output, " as set in preferences)\n"); |
| 501 | // Note: the order of the flags here matches the options in the settings dialog e.g. "dsN" only have an effect if "n" is set |
| 502 | fprintf(output, " -N <name resolve flags> enable specific name resolution(s): \"mtndsNvg\"\n"); |
| 503 | fprintf(output, " -d %s ...\n", DECODE_AS_ARG_TEMPLATE"<layer_type>==<selector>,<decode_as_protocol>"); |
| 504 | fprintf(output, " \"Decode As\", see the man page for details\n"); |
| 505 | fprintf(output, " Example: tcp.port==8888,http\n"); |
| 506 | fprintf(output, " -H <hosts file> read a list of entries from a hosts file, which will\n"); |
| 507 | fprintf(output, " then be written to a capture file. (Implies -W n)\n"); |
| 508 | fprintf(output, " --enable-protocol <proto_name>\n"); |
| 509 | fprintf(output, " enable dissection of proto_name\n"); |
| 510 | fprintf(output, " --disable-protocol <proto_name>\n"); |
| 511 | fprintf(output, " disable dissection of proto_name\n"); |
| 512 | fprintf(output, " --only-protocols <protocols>\n"); |
| 513 | fprintf(output, " Only enable dissection of these protocols, comma\n"); |
| 514 | fprintf(output, " separated. Disable everything else\n"); |
| 515 | fprintf(output, " --disable-all-protocols\n"); |
| 516 | fprintf(output, " Disable dissection of all protocols\n"); |
| 517 | fprintf(output, " --enable-heuristic <short_name>\n"); |
| 518 | fprintf(output, " enable dissection of heuristic protocol\n"); |
| 519 | fprintf(output, " --disable-heuristic <short_name>\n"); |
| 520 | fprintf(output, " disable dissection of heuristic protocol\n"); |
| 521 | |
| 522 | /*fprintf(output, "\n");*/ |
| 523 | fprintf(output, "Output:\n"); |
| 524 | fprintf(output, " -w <outfile|-> write packets to a pcapng-format file named \"outfile\"\n"); |
| 525 | fprintf(output, " (or '-' for stdout). If the output filename has the\n"); |
| 526 | fprintf(output, " .gz extension, it will be compressed to a gzip archive\n"); |
| 527 | fprintf(output, " --capture-comment <comment>\n"); |
| 528 | fprintf(output, " add a capture file comment, if supported\n"); |
| 529 | fprintf(output, " -C <config profile> start with specified configuration profile\n"); |
| 530 | fprintf(output, " --global-profile use the global profile instead of personal profile\n"); |
| 531 | fprintf(output, " -F <output file type> set the output file type; default is pcapng.\n"); |
| 532 | fprintf(output, " an empty \"-F\" option will list the file types\n"); |
| 533 | fprintf(output, " -V add output of packet tree (Packet Details)\n"); |
| 534 | fprintf(output, " -O <protocols> Only show packet details of these protocols, comma\n"); |
| 535 | fprintf(output, " separated\n"); |
| 536 | fprintf(output, " -P, --print print packet summary even when writing to a file\n"); |
| 537 | fprintf(output, " -S <separator> the line separator to print between packets\n"); |
| 538 | fprintf(output, " -x add output of hex and ASCII dump (Packet Bytes)\n"); |
| 539 | fprintf(output, " --hexdump <hexoption> add hexdump, set options for data source and ASCII dump\n"); |
| 540 | fprintf(output, " all dump all data sources (-x default)\n"); |
| 541 | fprintf(output, " frames dump only frame data source\n"); |
| 542 | fprintf(output, " ascii include ASCII dump text (-x default)\n"); |
| 543 | fprintf(output, " delimit delimit ASCII dump text with '|' characters\n"); |
| 544 | fprintf(output, " noascii exclude ASCII dump text\n"); |
| 545 | fprintf(output, " time include frame timestamp preamble\n"); |
| 546 | fprintf(output, " notime do not include frame timestamp preamble (-x default)\n"); |
| 547 | fprintf(output, " help display help for --hexdump and exit\n"); |
| 548 | fprintf(output, " -T pdml|ps|psml|json|jsonraw|ek|tabs|text|fields|?\n"); |
| 549 | fprintf(output, " format of text output (def: text)\n"); |
| 550 | fprintf(output, " -j <protocolfilter> protocols layers filter if -T ek|pdml|json selected\n"); |
| 551 | fprintf(output, " (e.g. \"ip ip.flags text\", filter does not expand child\n"); |
| 552 | fprintf(output, " nodes, unless child is specified also in the filter)\n"); |
| 553 | fprintf(output, " -J <protocolfilter> top level protocol filter if -T ek|pdml|json selected\n"); |
| 554 | fprintf(output, " (e.g. \"http tcp\", filter which expands all child nodes)\n"); |
| 555 | fprintf(output, " -e <field> field to print if -Tfields selected (e.g. tcp.port,\n"); |
| 556 | fprintf(output, " _ws.col.info)\n"); |
| 557 | fprintf(output, " this option can be repeated to print multiple fields\n"); |
| 558 | fprintf(output, " -E<fieldsoption>=<value> set options for output when -Tfields selected:\n"); |
| 559 | fprintf(output, " bom=y|n print a UTF-8 BOM\n"); |
| 560 | fprintf(output, " header=y|n switch headers on and off\n"); |
| 561 | fprintf(output, " separator=/t|/s|<char> select tab, space, printable character as separator\n"); |
| 562 | fprintf(output, " occurrence=f|l|a print first, last or all occurrences of each field\n"); |
| 563 | fprintf(output, " aggregator=,|/s|<char> select comma, space, printable character as\n"); |
| 564 | fprintf(output, " aggregator\n"); |
| 565 | fprintf(output, " quote=d|s|n select double, single, no quotes for values\n"); |
| 566 | fprintf(output, " -t (a|ad|adoy|d|dd|e|r|rc|u|ud|udoy)[.[N]]|.[N]\n"); |
| 567 | fprintf(output, " output format of time stamps (def: r: rel. to first)\n"); |
| 568 | fprintf(output, " -u s|hms output format of seconds (def: s: seconds)\n"); |
| 569 | fprintf(output, " -l flush standard output after each packet\n"); |
| 570 | fprintf(output, " (implies --update-interval 0)\n"); |
| 571 | fprintf(output, " -q be more quiet on stdout (e.g. when using statistics)\n"); |
| 572 | fprintf(output, " -Q only log true errors to stderr (quieter than -q)\n"); |
| 573 | fprintf(output, " -g enable group read access on the output file(s)\n"); |
| 574 | fprintf(output, " -W n Save extra information in the file, if supported.\n"); |
| 575 | fprintf(output, " n = write network address resolution information\n"); |
| 576 | fprintf(output, " -X <key>:<value> eXtension options, see the man page for details\n"); |
| 577 | fprintf(output, " -U tap_name PDUs export mode, see the man page for details\n"); |
| 578 | fprintf(output, " -z <statistics> various statistics, see the man page for details\n"); |
| 579 | fprintf(output, " --export-objects <protocol>,<destdir>\n"); |
| 580 | fprintf(output, " save exported objects for a protocol to a directory\n"); |
| 581 | fprintf(output, " named \"destdir\"\n"); |
| 582 | fprintf(output, " --export-tls-session-keys <keyfile>\n"); |
| 583 | fprintf(output, " export TLS Session Keys to a file named \"keyfile\"\n"); |
| 584 | fprintf(output, " --color color output text similarly to the Wireshark GUI,\n"); |
| 585 | fprintf(output, " requires a terminal with 24-bit color support\n"); |
| 586 | fprintf(output, " Also supplies color attributes to pdml and psml formats\n"); |
| 587 | fprintf(output, " (Note that attributes are nonstandard)\n"); |
| 588 | fprintf(output, " --no-duplicate-keys If -T json is specified, merge duplicate keys in an object\n"); |
| 589 | fprintf(output, " into a single key with as value a json array containing all\n"); |
| 590 | fprintf(output, " values\n"); |
| 591 | fprintf(output, " --elastic-mapping-filter <protocols> If -G elastic-mapping is specified, put only the\n"); |
| 592 | fprintf(output, " specified protocols within the mapping file\n"); |
| 593 | fprintf(output, " --temp-dir <directory> write temporary files to this directory\n"); |
| 594 | fprintf(output, " (default: %s)\n", g_get_tmp_dir()); |
| 595 | fprintf(output, " --compress <type> compress the output file using the type compression format\n"); |
| 596 | fprintf(output, "\n"); |
| 597 | |
| 598 | ws_log_print_usage(output); |
| 599 | fprintf(output, "\n"); |
| 600 | |
| 601 | fprintf(output, "Miscellaneous:\n"); |
| 602 | fprintf(output, " -h, --help display this help and exit\n"); |
| 603 | fprintf(output, " -v, --version display version info and exit\n"); |
| 604 | fprintf(output, " -o <name>:<value> ... override preference setting\n"); |
| 605 | fprintf(output, " -K <keytab> keytab file to use for kerberos decryption\n"); |
| 606 | fprintf(output, " -G [report] dump one of several available reports and exit\n"); |
| 607 | fprintf(output, " default report=\"fields\"\n"); |
| 608 | fprintf(output, " use \"-G help\" for more help\n"); |
| 609 | #ifdef __linux__1 |
| 610 | fprintf(output, "\n"); |
| 611 | fprintf(output, "Dumpcap can benefit from an enabled BPF JIT compiler if available.\n"); |
| 612 | fprintf(output, "You might want to enable it by executing:\n"); |
| 613 | fprintf(output, " \"echo 1 > /proc/sys/net/core/bpf_jit_enable\"\n"); |
| 614 | fprintf(output, "Note that this can make your system less secure!\n"); |
| 615 | #endif |
| 616 | |
| 617 | } |
| 618 | |
| 619 | static void |
| 620 | glossary_option_help(void) |
| 621 | { |
| 622 | FILE *output; |
| 623 | |
| 624 | output = stdoutstdout; |
| 625 | |
| 626 | fprintf(output, "%s\n", get_appname_and_version()); |
| 627 | |
| 628 | fprintf(output, "\n"); |
| 629 | fprintf(output, "Usage: tshark -G <report>\n"); |
| 630 | fprintf(output, "\n"); |
| 631 | fprintf(output, "Glossary table reports:\n"); |
| 632 | fprintf(output, " -G column-formats dump column format codes and exit\n"); |
| 633 | fprintf(output, " -G decodes dump \"layer type\"/\"decode as\" associations and exit\n"); |
| 634 | fprintf(output, " -G dissector-tables dump dissector table names, types, and properties\n"); |
| 635 | fprintf(output, " -G dissectors dump registered dissector names\n"); |
| 636 | fprintf(output, " -G elastic-mapping dump ElasticSearch mapping file\n"); |
| 637 | fprintf(output, " -G enterprises dump IANA Private Enterprise Number (PEN) table\n"); |
| 638 | fprintf(output, " -G fieldcount dump count of header fields and exit\n"); |
| 639 | fprintf(output, " -G fields,[prefix] dump fields glossary and exit\n"); |
| 640 | fprintf(output, " -G ftypes dump field type basic and descriptive names\n"); |
| 641 | fprintf(output, " -G heuristic-decodes dump heuristic dissector tables\n"); |
| 642 | fprintf(output, " -G manuf dump ethernet manufacturer tables\n"); |
| 643 | fprintf(output, " -G plugins dump installed plugins and exit\n"); |
| 644 | fprintf(output, " -G protocols dump protocols in registration database and exit\n"); |
| 645 | fprintf(output, " -G services dump transport service (port) names\n"); |
| 646 | fprintf(output, " -G values dump value, range, true/false strings and exit\n"); |
| 647 | fprintf(output, "\n"); |
| 648 | fprintf(output, "Preference reports:\n"); |
| 649 | fprintf(output, " -G currentprefs dump current preferences and exit\n"); |
| 650 | fprintf(output, " -G defaultprefs dump default preferences and exit\n"); |
| 651 | fprintf(output, " -G folders dump about:folders\n"); |
| 652 | fprintf(output, "\n"); |
| 653 | } |
| 654 | |
| 655 | static void |
| 656 | hexdump_option_help(FILE *output) |
| 657 | { |
| 658 | fprintf(output, "%s\n", get_appname_and_version()); |
| 659 | fprintf(output, "\n"); |
| 660 | fprintf(output, "tshark: Valid --hexdump <hexoption> values include:\n"); |
| 661 | fprintf(output, "\n"); |
| 662 | fprintf(output, "Data source options:\n"); |
| 663 | fprintf(output, " all add hexdump, dump all data sources (-x default)\n"); |
| 664 | fprintf(output, " frames add hexdump, dump only frame data source\n"); |
| 665 | fprintf(output, "\n"); |
| 666 | fprintf(output, "ASCII options:\n"); |
| 667 | fprintf(output, " ascii add hexdump, include ASCII dump text (-x default)\n"); |
| 668 | fprintf(output, " delimit add hexdump, delimit ASCII dump text with '|' characters\n"); |
| 669 | fprintf(output, " noascii add hexdump, exclude ASCII dump text\n"); |
| 670 | fprintf(output, "\n"); |
| 671 | fprintf(output, "Timestamp options:\n"); |
| 672 | fprintf(output, " time add hexdump, include frame timestamp preamble (uses the format from -t)\n"); |
| 673 | fprintf(output, " notime add hexdump, do not include frame timestamp preamble (-x default)\n"); |
| 674 | fprintf(output, "Miscellaneous:\n"); |
| 675 | fprintf(output, " help display this help and exit\n"); |
| 676 | fprintf(output, "\n"); |
| 677 | fprintf(output, "Example:\n"); |
| 678 | fprintf(output, "\n"); |
| 679 | fprintf(output, " $ tshark ... --hexdump frames --hexdump delimit ...\n"); |
| 680 | fprintf(output, "\n"); |
| 681 | } |
| 682 | |
| 683 | static void |
| 684 | print_current_user(void) |
| 685 | { |
| 686 | char *cur_user, *cur_group; |
| 687 | |
| 688 | if (started_with_special_privs()) { |
| 689 | cur_user = get_cur_username(); |
| 690 | cur_group = get_cur_groupname(); |
| 691 | fprintf(stderrstderr, "Running as user \"%s\" and group \"%s\".", |
| 692 | cur_user, cur_group); |
| 693 | g_free(cur_user); |
| 694 | g_free(cur_group); |
| 695 | if (running_with_special_privs()) { |
| 696 | fprintf(stderrstderr, " This could be dangerous."); |
| 697 | } |
| 698 | fprintf(stderrstderr, "\n"); |
| 699 | } |
| 700 | } |
| 701 | |
| 702 | static void |
| 703 | gather_tshark_compile_info(feature_list l) |
| 704 | { |
| 705 | /* Capture libraries */ |
| 706 | gather_caplibs_compile_info(l); |
| 707 | epan_gather_compile_info(l); |
| 708 | } |
| 709 | |
| 710 | static void |
| 711 | gather_tshark_runtime_info(feature_list l) |
| 712 | { |
| 713 | #ifdef HAVE_LIBPCAP1 |
| 714 | gather_caplibs_runtime_info(l); |
| 715 | #endif |
| 716 | |
| 717 | /* stuff used by libwireshark */ |
| 718 | epan_gather_runtime_info(l); |
| 719 | } |
| 720 | |
| 721 | static bool_Bool |
| 722 | _compile_dfilter(const char *text, dfilter_t **dfp, const char *caller) |
| 723 | { |
| 724 | bool_Bool ok; |
| 725 | df_error_t *df_err; |
| 726 | char *err_off; |
| 727 | char *expanded; |
| 728 | int64_t elapsed_start; |
| 729 | |
| 730 | elapsed_start = g_get_monotonic_time(); |
| 731 | expanded = dfilter_expand(text, &df_err); |
| 732 | if (expanded == NULL((void*)0)) { |
| 733 | cmdarg_err("%s", df_err->msg); |
| 734 | df_error_free(&df_err); |
| 735 | return false0; |
| 736 | } |
| 737 | tshark_elapsed.dfilter_expand = g_get_monotonic_time() - elapsed_start; |
| 738 | |
| 739 | elapsed_start = g_get_monotonic_time(); |
| 740 | ok = dfilter_compile_full(expanded, dfp, &df_err, DF_OPTIMIZE(1U << 2), caller); |
| 741 | if (!ok ) { |
| 742 | cmdarg_err("%s", df_err->msg); |
| 743 | |
| 744 | if (df_err->loc.col_start >= 0) { |
| 745 | err_off = ws_strdup_underline(NULL((void*)0), df_err->loc.col_start, df_err->loc.col_len); |
| 746 | cmdarg_err_cont(" %s", expanded); |
| 747 | cmdarg_err_cont(" %s", err_off); |
| 748 | g_free(err_off); |
| 749 | } |
| 750 | df_error_free(&df_err); |
| 751 | } |
| 752 | tshark_elapsed.dfilter_compile = g_get_monotonic_time() - elapsed_start; |
| 753 | |
| 754 | g_free(expanded); |
| 755 | return ok; |
| 756 | } |
| 757 | |
| 758 | #define compile_dfilter(text, dfp)_compile_dfilter(text, dfp, __func__) _compile_dfilter(text, dfp, __func__) |
| 759 | |
| 760 | static bool_Bool |
| 761 | protocolfilter_add_opt(const char* arg, pf_flags filter_flags) |
| 762 | { |
| 763 | char **newfilter = NULL((void*)0); |
| 764 | for (newfilter = wmem_strsplit(wmem_epan_scope(), arg, " ", -1); *newfilter; newfilter++) { |
| 765 | if (strcmp(*newfilter, "") == 0) { |
| 766 | /* Don't treat the empty string as an intended field abbreviation |
| 767 | * to output, consecutive spaces on the command line probably |
| 768 | * aren't intentional. |
| 769 | */ |
| 770 | continue; |
| 771 | } |
| 772 | if (!output_fields_add_protocolfilter(output_fields, *newfilter, filter_flags)) { |
| 773 | cmdarg_err("%s was already specified with different filter flags. Overwriting previous protocol filter.", *newfilter); |
| 774 | } |
| 775 | } |
| 776 | return true1; |
| 777 | } |
| 778 | |
| 779 | static void |
| 780 | about_folders(void) |
| 781 | { |
| 782 | const char *constpath; |
| 783 | char *path; |
| 784 | int i; |
| 785 | char **resultArray; |
| 786 | const char *env_prefix = application_configuration_environment_prefix(); |
| 787 | |
| 788 | /* "file open" */ |
| 789 | |
| 790 | /* |
| 791 | * Fetching the "File" dialogs folder not implemented. |
| 792 | * This is arguably just a pwd for a ui/cli . |
| 793 | */ |
| 794 | |
| 795 | /* temp */ |
| 796 | constpath = g_get_tmp_dir(); |
| 797 | #ifdef HAVE_LIBPCAP1 |
| 798 | /* global_capture_opts only exists in this case */ |
| 799 | if (global_capture_opts.temp_dir) |
| 800 | constpath = global_capture_opts.temp_dir; |
| 801 | #endif |
| 802 | printf("%-21s\t%s\n", "Temp:", constpath); |
| 803 | |
| 804 | /* pers conf */ |
| 805 | path = get_persconffile_path("", false0, env_prefix); |
| 806 | printf("%-21s\t%s\n", "Personal configuration:", path); |
| 807 | g_free(path); |
| 808 | |
| 809 | /* global conf */ |
| 810 | constpath = get_datafile_dir(env_prefix); |
| 811 | if (constpath != NULL((void*)0)) { |
| 812 | printf("%-21s\t%s\n", "Global configuration:", constpath); |
| 813 | } |
| 814 | |
| 815 | /* system */ |
| 816 | constpath = get_systemfile_dir(env_prefix); |
| 817 | printf("%-21s\t%s\n", "System:", constpath); |
| 818 | |
| 819 | /* program */ |
| 820 | constpath = get_progfile_dir(); |
| 821 | printf("%-21s\t%s\n", "Program:", constpath); |
| 822 | |
| 823 | #ifdef HAVE_PLUGINS1 |
| 824 | /* pers plugins */ |
| 825 | printf("%-21s\t%s\n", "Personal Plugins:", get_plugins_pers_dir_with_version(env_prefix)); |
| 826 | |
| 827 | /* global plugins */ |
| 828 | printf("%-21s\t%s\n", "Global Plugins:", get_plugins_dir_with_version(env_prefix)); |
| 829 | #endif |
| 830 | |
| 831 | #ifdef HAVE_LUA1 |
| 832 | /* pers lua plugins */ |
| 833 | printf("%-21s\t%s\n", "Personal Lua Plugins:", get_plugins_pers_dir(env_prefix)); |
| 834 | |
| 835 | /* global lua plugins */ |
| 836 | printf("%-21s\t%s\n", "Global Lua Plugins:", get_plugins_dir(env_prefix)); |
| 837 | #endif |
| 838 | |
| 839 | /* Personal Extcap */ |
| 840 | constpath = get_extcap_pers_dir(env_prefix); |
| 841 | |
| 842 | resultArray = g_strsplit(constpath, G_SEARCHPATH_SEPARATOR_S":", 10); |
| 843 | for(i = 0; resultArray[i]; i++) |
| 844 | printf("%-21s\t%s\n", "Personal Extcap path:", g_strstrip(resultArray[i])g_strchomp (g_strchug (resultArray[i]))); |
| 845 | |
| 846 | g_strfreev(resultArray); |
| 847 | |
| 848 | /* Global Extcap */ |
| 849 | constpath = get_extcap_dir(env_prefix, application_extcap_dir()); |
| 850 | |
| 851 | resultArray = g_strsplit(constpath, G_SEARCHPATH_SEPARATOR_S":", 10); |
| 852 | for(i = 0; resultArray[i]; i++) |
| 853 | printf("%-21s\t%s\n", "Global Extcap path:", g_strstrip(resultArray[i])g_strchomp (g_strchug (resultArray[i]))); |
| 854 | |
| 855 | g_strfreev(resultArray); |
| 856 | |
| 857 | /* MaxMindDB */ |
| 858 | path = maxmind_db_get_paths(); |
| 859 | |
| 860 | resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S":", 10); |
| 861 | |
| 862 | for(i = 0; resultArray[i]; i++) |
| 863 | printf("%-21s\t%s\n", "MaxMind database path:", g_strstrip(resultArray[i])g_strchomp (g_strchug (resultArray[i]))); |
| 864 | |
| 865 | g_strfreev(resultArray); |
| 866 | g_free(path); |
| 867 | |
| 868 | #ifdef HAVE_LIBSMI1 |
| 869 | /* SMI MIBs/PIBs */ |
| 870 | path = oid_get_default_mib_path(application_configuration_environment_prefix()); |
| 871 | |
| 872 | resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S":", 20); |
| 873 | |
| 874 | for(i = 0; resultArray[i]; i++) |
| 875 | printf("%-21s\t%s\n", "MIB/PIB path:", g_strstrip(resultArray[i])g_strchomp (g_strchug (resultArray[i]))); |
| 876 | |
| 877 | g_strfreev(resultArray); |
| 878 | g_free(path); |
| 879 | #endif |
| 880 | |
| 881 | } |
| 882 | |
| 883 | static int |
| 884 | dump_glossary(const char* glossary, const char* elastic_mapping_filter) |
| 885 | { |
| 886 | int exit_status = EXIT_SUCCESS0; |
| 887 | /* If invoked with the "-G" flag, we dump out information based on |
| 888 | the argument to the "-G" flag. |
| 889 | */ |
| 890 | |
| 891 | /* This is now called after the preferences are loaded and all |
| 892 | * the command line options are handled, including -o, -d, |
| 893 | * --[enable|disable]-[protocol|heuristic]. |
| 894 | * Some UATs can register new fields (e.g. HTTP/2), so for most |
| 895 | * cases load everything. |
| 896 | * |
| 897 | * prefs_reset() is used for defaultprefs to get the default values. |
| 898 | * Note that makes it difficult to use defaultprefs in concert with |
| 899 | * any other glossary (we could do it last.) |
| 900 | */ |
| 901 | proto_initialize_all_prefixes(); |
| 902 | |
| 903 | if (strcmp(glossary, "column-formats") == 0) |
| 904 | column_dump_column_formats(); |
| 905 | else if (strcmp(glossary, "currentprefs") == 0) { |
| 906 | write_prefs(application_configuration_environment_prefix(), NULL((void*)0)); |
| 907 | } |
| 908 | else if (strcmp(glossary, "decodes") == 0) { |
| 909 | dissector_dump_decodes(); |
| 910 | } else if (strcmp(glossary, "defaultprefs") == 0) { |
| 911 | prefs_reset(application_configuration_environment_prefix(), application_columns(), application_num_columns()); |
| 912 | write_prefs(application_configuration_environment_prefix(), NULL((void*)0)); |
| 913 | } else if (strcmp(glossary, "dissector-tables") == 0) |
| 914 | dissector_dump_dissector_tables(); |
| 915 | else if (strcmp(glossary, "dissectors") == 0) |
| 916 | dissector_dump_dissectors(); |
| 917 | else if (strcmp(glossary, "elastic-mapping") == 0) |
| 918 | proto_registrar_dump_elastic(elastic_mapping_filter); |
| 919 | else if (strncmp(glossary, "elastic-mapping,", strlen("elastic-mapping,")) == 0) { |
| 920 | elastic_mapping_filter = glossary + strlen("elastic-mapping,"); |
| 921 | proto_registrar_dump_elastic(elastic_mapping_filter); |
| 922 | } |
| 923 | else if (strcmp(glossary, "fieldcount") == 0) { |
| 924 | /* return value for the test suite */ |
| 925 | exit_status = proto_registrar_dump_fieldcount(); |
| 926 | } |
| 927 | else if (strcmp(glossary, "fields") == 0) { |
| 928 | proto_registrar_dump_fields(); |
| 929 | } |
| 930 | else if (strncmp(glossary, "fields,", strlen("fields,")) == 0) { |
| 931 | const char* prefix = glossary + strlen("fields,"); |
| 932 | bool_Bool matched = proto_registrar_dump_field_completions(prefix); |
| 933 | if (!matched) { |
| 934 | cmdarg_err("No field or protocol begins with \"%s\"", prefix); |
| 935 | exit_status = EXIT_FAILURE1; |
| 936 | } |
| 937 | } |
| 938 | else if (strcmp(glossary, "folders") == 0) { |
| 939 | about_folders(); |
| 940 | } else if (strcmp(glossary, "ftypes") == 0) |
| 941 | proto_registrar_dump_ftypes(); |
| 942 | else if (strcmp(glossary, "heuristic-decodes") == 0) { |
| 943 | dissector_dump_heur_decodes(); |
| 944 | } else if (strcmp(glossary, "manuf") == 0) |
| 945 | ws_manuf_dump(stdoutstdout); |
| 946 | else if (strcmp(glossary, "enterprises") == 0) |
| 947 | global_enterprises_dump(stdoutstdout); |
| 948 | else if (strcmp(glossary, "services") == 0) |
| 949 | global_services_dump(stdoutstdout); |
| 950 | else if (strcmp(glossary, "plugins") == 0) { |
| 951 | #ifdef HAVE_PLUGINS1 |
| 952 | codecs_init(application_configuration_environment_prefix()); |
| 953 | plugins_dump_all(); |
| 954 | #endif |
| 955 | #ifdef HAVE_LUA1 |
| 956 | wslua_plugins_dump_all(); |
| 957 | #endif |
| 958 | extcap_dump_all(); |
| 959 | } |
| 960 | else if (strcmp(glossary, "protocols") == 0) { |
| 961 | proto_registrar_dump_protocols(); |
| 962 | } else if (strcmp(glossary, "values") == 0) |
| 963 | proto_registrar_dump_values(); |
| 964 | else if (strcmp(glossary, "help") == 0) |
| 965 | glossary_option_help(); |
| 966 | /* These are supported only for backwards compatibility and may or may not work |
| 967 | * for a given user in a given directory on a given operating system with a given |
| 968 | * command-line interpreter. |
| 969 | */ |
| 970 | else if (strcmp(glossary, "?") == 0) |
| 971 | glossary_option_help(); |
| 972 | else if (strcmp(glossary, "-?") == 0) |
| 973 | glossary_option_help(); |
| 974 | else { |
| 975 | cmdarg_err("Invalid \"%s\" option for -G flag, enter -G help for more help.", glossary); |
| 976 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 977 | } |
| 978 | |
| 979 | return exit_status; |
| 980 | } |
| 981 | |
| 982 | static bool_Bool |
| 983 | must_do_dissection(dfilter_t *rfcode, dfilter_t *dfcode, |
| 984 | char *volatile pdu_export_arg) |
| 985 | { |
| 986 | /* We have to dissect each packet if: |
| 987 | |
| 988 | we're printing information about each packet; |
| 989 | |
| 990 | we're using a read filter on the packets; |
| 991 | |
| 992 | we're using a display filter on the packets; |
| 993 | |
| 994 | we're exporting PDUs; |
| 995 | |
| 996 | we're using any taps that need dissection. */ |
| 997 | return print_packet_info || rfcode || dfcode || pdu_export_arg || |
| 998 | tap_listeners_require_dissection(); |
| 999 | } |
| 1000 | |
| 1001 | #ifdef HAVE_LIBPCAP1 |
| 1002 | /* |
| 1003 | * Check whether a purported *shark packet-matching expression (display |
| 1004 | * or read filter) looks like a capture filter and, if so, print a |
| 1005 | * warning. |
| 1006 | * |
| 1007 | * Used, for example, if the string in question isn't a valid packet- |
| 1008 | * matching expression. |
| 1009 | */ |
| 1010 | static void |
| 1011 | warn_about_capture_filter(const char *rfilter) |
| 1012 | { |
| 1013 | struct bpf_program fcode; |
| 1014 | pcap_t *pc; |
| 1015 | |
| 1016 | pc = pcap_open_dead(DLT_EN10MB1, MIN_PACKET_SIZE1); |
| 1017 | if (pc != NULL((void*)0)) { |
| 1018 | if (pcap_compile(pc, &fcode, rfilter, 0, 0) != -1) { |
| 1019 | pcap_freecode(&fcode); |
| 1020 | cmdarg_err_cont( |
| 1021 | " Note: That read filter code looks like a valid capture filter;\n" |
| 1022 | " maybe you mixed them up?"); |
| 1023 | } |
| 1024 | pcap_close(pc); |
| 1025 | } |
| 1026 | } |
| 1027 | #endif |
| 1028 | |
| 1029 | #ifdef HAVE_LIBPCAP1 |
| 1030 | static GList *cached_if_list; |
| 1031 | |
| 1032 | static GList * |
| 1033 | capture_opts_get_interface_list(int *err, char **err_str) |
| 1034 | { |
| 1035 | if (cached_if_list == NULL((void*)0)) { |
| 1036 | /* |
| 1037 | * This isn't a GUI tool, so no need for a callback. |
| 1038 | */ |
| 1039 | cached_if_list = capture_interface_list(global_capture_opts.app_name, err, err_str, NULL((void*)0)); |
| 1040 | } |
| 1041 | /* |
| 1042 | * Routines expect to free the returned interface list, so return |
| 1043 | * a deep copy. |
| 1044 | */ |
| 1045 | return interface_list_copy(cached_if_list); |
| 1046 | } |
| 1047 | #endif |
| 1048 | |
| 1049 | int |
| 1050 | main(int argc, char *argv[]) |
| 1051 | { |
| 1052 | char *err_msg; |
| 1053 | int opt; |
| 1054 | static const struct ws_option long_options[] = { |
| 1055 | {"help", ws_no_argument0, NULL((void*)0), 'h'}, |
| 1056 | {"version", ws_no_argument0, NULL((void*)0), 'v'}, |
| 1057 | LONGOPT_CAPTURE_COMMON{"autostop", 1, ((void*)0), 'a'}, {"ring-buffer", 1, ((void*) 0), 'b'}, {"buffer-size", 1, ((void*)0), 'B'}, {"list-interfaces" , 0, ((void*)0), 'D'}, {"list-sources", 0, ((void*)0), 'D'}, { "interface", 1, ((void*)0), 'i'}, {"source", 1, ((void*)0), 'i' }, {"monitor-mode", 0, ((void*)0), 'I'}, {"list-data-link-types" , 0, ((void*)0), 'L'}, {"no-promiscuous-mode", 0, ((void*)0), 'p'}, {"snapshot-length", 1, ((void*)0), 's'}, {"linktype", 1 , ((void*)0), 'y'}, {"list-time-stamp-types", 0, ((void*)0), 1000 +1}, {"no-optimize", 0, ((void*)0), 1000 +6}, {"time-stamp-type" , 1, ((void*)0), 1000 +2}, {"compress-type", 1, ((void*)0), 1000 +3}, {"temp-dir", 1, ((void*)0), 1000 +4}, {"update-interval" , 1, ((void*)0), 1000 +5}, |
| 1058 | LONGOPT_DISSECT_COMMON{"disable-protocol", 1, ((void*)0), 2000 +1 }, {"enable-heuristic" , 1, ((void*)0), 2000 +2 }, {"disable-heuristic", 1, ((void*) 0), 2000 +3 }, {"enable-protocol", 1, ((void*)0), 2000 +4 }, { "only-protocols", 1, ((void*)0), 2000 +5 }, {"disable-all-protocols" , 0, ((void*)0), 2000 +6 }, {"read-filter", 1, ((void*)0), 'R' }, {"display-filter", 1, ((void*)0), 'Y' }, |
| 1059 | LONGOPT_READ_CAPTURE_COMMON{"read-file", 1, ((void*)0), 'r' }, |
| 1060 | LONGOPT_WSLOG{"log-level", 1, ((void*)0), 5000 +1}, {"log-domain", 1, ((void *)0), 5000 +2}, {"log-domains", 1, ((void*)0), 5000 +2}, {"log-file" , 1, ((void*)0), 5000 +3}, {"log-fatal", 1, ((void*)0), 5000 + 4}, {"log-fatal-domain", 1, ((void*)0), 5000 +5}, {"log-fatal-domains" , 1, ((void*)0), 5000 +5}, {"log-debug", 1, ((void*)0), 5000 + 6}, {"log-noisy", 1, ((void*)0), 5000 +7}, |
| 1061 | {"print", ws_no_argument0, NULL((void*)0), 'P'}, |
| 1062 | {"export-objects", ws_required_argument1, NULL((void*)0), LONGOPT_EXPORT_OBJECTS3000 +1}, |
| 1063 | {"export-tls-session-keys", ws_required_argument1, NULL((void*)0), LONGOPT_EXPORT_TLS_SESSION_KEYS3000 +5}, |
| 1064 | {"color", ws_no_argument0, NULL((void*)0), LONGOPT_COLOR3000 +2}, |
| 1065 | {"no-duplicate-keys", ws_no_argument0, NULL((void*)0), LONGOPT_NO_DUPLICATE_KEYS3000 +3}, |
| 1066 | {"elastic-mapping-filter", ws_required_argument1, NULL((void*)0), LONGOPT_ELASTIC_MAPPING_FILTER3000 +4}, |
| 1067 | {"capture-comment", ws_required_argument1, NULL((void*)0), LONGOPT_CAPTURE_COMMENT3000 +6}, |
| 1068 | {"hexdump", ws_required_argument1, NULL((void*)0), LONGOPT_HEXDUMP3000 +7}, |
| 1069 | {"selected-frame", ws_required_argument1, NULL((void*)0), LONGOPT_SELECTED_FRAME3000 +8}, |
| 1070 | {"print-timers", ws_no_argument0, NULL((void*)0), LONGOPT_PRINT_TIMERS3000 +9}, |
| 1071 | {"global-profile", ws_no_argument0, NULL((void*)0), LONGOPT_GLOBAL_PROFILE3000 +10}, |
| 1072 | {"compress", ws_required_argument1, NULL((void*)0), LONGOPT_COMPRESS3000 +11}, |
| 1073 | {0, 0, 0, 0} |
| 1074 | }; |
| 1075 | bool_Bool arg_error = false0; |
| 1076 | bool_Bool has_extcap_options = false0; |
| 1077 | volatile bool_Bool is_capturing = true1; |
| 1078 | |
| 1079 | int err; |
| 1080 | char *err_info; |
| 1081 | bool_Bool exp_pdu_status; |
| 1082 | volatile process_file_status_t status; |
| 1083 | volatile bool_Bool draw_taps = false0; |
| 1084 | volatile int exit_status = EXIT_SUCCESS0; |
| 1085 | #ifdef HAVE_LIBPCAP1 |
| 1086 | int caps_queries = 0; |
| 1087 | GList *if_list; |
| 1088 | char *err_str, *err_str_secondary; |
| 1089 | #else |
| 1090 | bool_Bool capture_option_specified = false0; |
| 1091 | int max_packet_count = 0; |
| 1092 | #endif |
| 1093 | volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_UNKNOWN-1; |
| 1094 | volatile bool_Bool out_file_name_res = false0; |
| 1095 | volatile int in_file_type = WTAP_TYPE_AUTO0; |
| 1096 | char *volatile cf_name = NULL((void*)0); |
| 1097 | char *rfilter = NULL((void*)0); |
| 1098 | char *volatile dfilter = NULL((void*)0); |
| 1099 | dfilter_t *rfcode = NULL((void*)0); |
| 1100 | dfilter_t *dfcode = NULL((void*)0); |
| 1101 | e_prefs *prefs_p; |
| 1102 | char *output_only = NULL((void*)0); |
| 1103 | char *volatile pdu_export_arg = NULL((void*)0); |
| 1104 | char *volatile exp_pdu_filename = NULL((void*)0); |
| 1105 | const char *volatile tls_session_keys_file = NULL((void*)0); |
| 1106 | exp_pdu_t exp_pdu_tap_data; |
| 1107 | const char* glossary = NULL((void*)0); |
| 1108 | const char* elastic_mapping_filter = NULL((void*)0); |
| 1109 | ws_compression_type volatile compression_type = WS_FILE_UNKNOWN_COMPRESSION; |
| 1110 | const struct file_extension_info* file_extensions; |
| 1111 | unsigned num_extensions; |
| 1112 | epan_app_data_t app_data; |
| 1113 | |
| 1114 | /* |
| 1115 | * The leading + ensures that getopt_long() does not permute the argv[] |
| 1116 | * entries. |
| 1117 | * |
| 1118 | * We have to make sure that the first getopt_long() preserves the content |
| 1119 | * of argv[] for the subsequent getopt_long() call. |
| 1120 | * |
| 1121 | * We use getopt_long() in both cases to ensure that we're using a routine |
| 1122 | * whose permutation behavior we can control in the same fashion on all |
| 1123 | * platforms, and so that, if we ever need to process a long argument before |
| 1124 | * doing further initialization, we can do so. |
| 1125 | * |
| 1126 | * Glibc and Solaris libc document that a leading + disables permutation |
| 1127 | * of options, regardless of whether POSIXLY_CORRECT is set or not; *BSD |
| 1128 | * and macOS don't document it, but do so anyway. |
| 1129 | * |
| 1130 | * We do *not* use a leading - because the behavior of a leading - is |
| 1131 | * platform-dependent. |
| 1132 | */ |
| 1133 | #define OPTSTRING"+2" "a:" "b:" "B:" "c:Df:F:i:" "I" "Lps:y:" "d:K:nN:R:t:u:Y:" "r:" "M:C:e:E:F:gG:hH:j:J:lo:O:PqQS:T:U:vVw:W:xX:z:" "+2" OPTSTRING_CAPTURE_COMMON"a:" "b:" "B:" "c:Df:F:i:" "I" "Lps:y:" OPTSTRING_DISSECT_COMMON"d:K:nN:R:t:u:Y:" OPTSTRING_READ_CAPTURE_COMMON"r:" "M:C:e:E:F:gG:hH:j:J:lo:O:PqQS:T:U:vVw:W:xX:z:" |
| 1134 | |
| 1135 | static const char optstring[] = OPTSTRING"+2" "a:" "b:" "B:" "c:Df:F:i:" "I" "Lps:y:" "d:K:nN:R:t:u:Y:" "r:" "M:C:e:E:F:gG:hH:j:J:lo:O:PqQS:T:U:vVw:W:xX:z:"; |
| 1136 | |
| 1137 | /* Future proof by zeroing out all data */ |
| 1138 | memset(&app_data, 0, sizeof(app_data)); |
| 1139 | |
| 1140 | /* Set the program name. */ |
| 1141 | g_set_prgname("tshark"); |
| 1142 | |
| 1143 | /* |
| 1144 | * Set the C-language locale to the native environment and set the |
| 1145 | * code page to UTF-8 on Windows. |
| 1146 | */ |
| 1147 | #ifdef _WIN32 |
| 1148 | setlocale(LC_ALL6, ".UTF-8"); |
| 1149 | #else |
| 1150 | setlocale(LC_ALL6, ""); |
| 1151 | #endif |
| 1152 | |
| 1153 | ws_tzset(); |
| 1154 | |
| 1155 | cmdarg_err_init(stderr_cmdarg_err, stderr_cmdarg_err_cont); |
| 1156 | |
| 1157 | /* Initialize log handler early so we can have proper logging during startup. */ |
| 1158 | ws_log_init(vcmdarg_err, "TShark Debug Console"); |
| 1159 | |
| 1160 | /* Early logging command-line initialization. */ |
| 1161 | ws_log_parse_args(&argc, argv, optstring, long_options, vcmdarg_err, WS_EXIT_INVALID_OPTION1); |
| 1162 | |
| 1163 | ws_noisy("Finished log init and parsing command line log arguments")do { if (1) { ws_log_full("Main", LOG_LEVEL_NOISY, "tshark.c" , 1163, __func__, "Finished log init and parsing command line log arguments" ); } } while (0); |
| 1164 | ws_debug("tshark started with %d args", argc)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 1164, __func__, "tshark started with %d args", argc); } } while (0); |
| 1165 | |
| 1166 | #ifdef _WIN32 |
| 1167 | create_app_running_mutex(); |
| 1168 | #endif /* _WIN32 */ |
| 1169 | |
| 1170 | /* |
| 1171 | * Get credential information for later use, and drop privileges |
| 1172 | * before doing anything else. |
| 1173 | * Let the user know if anything happened. |
| 1174 | */ |
| 1175 | init_process_policies(); |
| 1176 | relinquish_special_privs_perm(); |
| 1177 | print_current_user(); |
| 1178 | |
| 1179 | /* |
| 1180 | * Attempt to get the pathname of the directory containing the |
| 1181 | * executable file. |
| 1182 | */ |
| 1183 | err_msg = configuration_init(argv[0], "wireshark"); |
| 1184 | if (err_msg != NULL((void*)0)) { |
| 1185 | fprintf(stderrstderr, |
| 1186 | "tshark: Can't get pathname of directory containing the tshark program: %s.\n" |
| 1187 | "It won't be possible to capture traffic.\n" |
| 1188 | "Report this to the Wireshark developers.", |
| 1189 | err_msg); |
| 1190 | g_free(err_msg); |
| 1191 | } |
| 1192 | |
| 1193 | initialize_funnel_ops(); |
| 1194 | |
| 1195 | #ifdef _WIN32 |
| 1196 | ws_init_dll_search_path(); |
| 1197 | #ifdef HAVE_LIBPCAP1 |
| 1198 | /* Load wpcap if possible. Do this before collecting the run-time version information */ |
| 1199 | load_wpcap(); |
| 1200 | #endif /* HAVE_LIBPCAP */ |
| 1201 | #endif /* _WIN32 */ |
| 1202 | |
| 1203 | /* Initialize the version information. */ |
| 1204 | ws_init_version_info("TShark", application_flavor_name_proper(), application_get_vcs_version_info, |
| 1205 | gather_tshark_compile_info, gather_tshark_runtime_info); |
| 1206 | |
| 1207 | /* Fail sometimes. Useful for testing fuzz scripts. */ |
| 1208 | /* if (g_random_int_range(0, 100) < 5) abort(); */ |
| 1209 | |
| 1210 | /* |
| 1211 | * In order to have the -X opts assigned before the wslua machine starts |
| 1212 | * we need to call getopt_long before epan_init() gets called. |
| 1213 | * |
| 1214 | * In order to handle, for example, -o options, we also need to call it |
| 1215 | * *after* epan_init() gets called, so that the dissectors have had a |
| 1216 | * chance to register their preferences. |
| 1217 | * |
| 1218 | * Spawning a bunch of extcap processes can delay program startup, |
| 1219 | * particularly on Windows. Check to see if we have any options that |
| 1220 | * might require extcap and set has_extcap_options = true if that's |
| 1221 | * the case. |
| 1222 | * |
| 1223 | * XXX - can we do this all with one getopt_long() call, saving the |
| 1224 | * arguments we can't handle until after initializing libwireshark, |
| 1225 | * and then process them after initializing libwireshark? |
| 1226 | * |
| 1227 | * We set ws_opterr to 0 so that ws_getopt_long doesn't print error |
| 1228 | * messages for bad long options. We'll do that once, in the final |
| 1229 | * call where all the error handling happens. |
| 1230 | */ |
| 1231 | ws_opterr = 0; |
| 1232 | |
| 1233 | /* We should check at first if we should use a global profile before |
| 1234 | parsing the profile name |
| 1235 | XXX - We could check this in the next ws_getopt_long, and save the |
| 1236 | profile name and only apply it after finishing the loop. */ |
| 1237 | while ((opt = ws_getopt_long(argc, argv, optstring, long_options, NULL((void*)0))) != -1) { |
| 1238 | switch (opt) { |
| 1239 | case LONGOPT_GLOBAL_PROFILE3000 +10: |
| 1240 | set_persconffile_dir(get_datafile_dir(application_configuration_environment_prefix())); |
| 1241 | break; |
| 1242 | default: |
| 1243 | break; |
| 1244 | } |
| 1245 | } |
| 1246 | |
| 1247 | /* |
| 1248 | * Reset the options parser, set ws_optreset to 1 and set ws_optind to 1. |
| 1249 | * We still don't want to print error messages, though. |
| 1250 | */ |
| 1251 | ws_optreset = 1; |
| 1252 | ws_optind = 1; |
| 1253 | |
| 1254 | while ((opt = ws_getopt_long(argc, argv, optstring, long_options, NULL((void*)0))) != -1) { |
| 1255 | switch (opt) { |
| 1256 | case 'C': /* Configuration Profile */ |
| 1257 | if (profile_exists(application_configuration_environment_prefix(), ws_optarg, false0)) { |
| 1258 | set_profile_name (ws_optarg); |
| 1259 | } else if (profile_exists(application_configuration_environment_prefix(), ws_optarg, true1)) { |
| 1260 | char *pf_dir_path, *pf_dir_path2, *pf_filename; |
| 1261 | /* Copy from global profile */ |
| 1262 | if (create_persconffile_profile(application_configuration_environment_prefix(), ws_optarg, &pf_dir_path) == -1) { |
| 1263 | cmdarg_err("Can't create directory\n\"%s\":\n%s.", |
| 1264 | pf_dir_path, g_strerror(errno(*__errno_location ()))); |
| 1265 | |
| 1266 | g_free(pf_dir_path); |
| 1267 | exit_status = WS_EXIT_INVALID_FILE3; |
| 1268 | goto clean_exit; |
| 1269 | } |
| 1270 | if (copy_persconffile_profile(application_configuration_environment_prefix(), ws_optarg, ws_optarg, true1, &pf_filename, |
| 1271 | &pf_dir_path, &pf_dir_path2) == -1) { |
| 1272 | cmdarg_err("Can't copy file \"%s\" in directory\n\"%s\" to\n\"%s\":\n%s.", |
| 1273 | pf_filename, pf_dir_path2, pf_dir_path, g_strerror(errno(*__errno_location ()))); |
| 1274 | |
| 1275 | g_free(pf_filename); |
| 1276 | g_free(pf_dir_path); |
| 1277 | g_free(pf_dir_path2); |
| 1278 | exit_status = WS_EXIT_INVALID_FILE3; |
| 1279 | goto clean_exit; |
| 1280 | } |
| 1281 | set_profile_name (ws_optarg); |
| 1282 | } else { |
| 1283 | cmdarg_err("Configuration Profile \"%s\" does not exist", ws_optarg); |
| 1284 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1285 | goto clean_exit; |
| 1286 | } |
| 1287 | break; |
| 1288 | case 'G': |
| 1289 | if (glossary != NULL((void*)0)) { |
| 1290 | /* Multiple glossaries are difficult especially due to defaultprefs */ |
| 1291 | cmdarg_err("Multiple glossary reports (-G) are unsupported"); |
| 1292 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1293 | goto clean_exit; |
| 1294 | } else { |
| 1295 | glossary = ws_optarg; |
| 1296 | } |
| 1297 | if (g_str_has_suffix(ws_optarg, "prefs")(__builtin_constant_p ("prefs")? __extension__ ({ const char * const __str = (ws_optarg); const char * const __suffix = ("prefs" ); gboolean __result = (0); if (__str == ((void*)0) || __suffix == ((void*)0)) __result = (g_str_has_suffix) (__str, __suffix ); else { const size_t __str_len = strlen (((__str) + !(__str ))); const size_t __suffix_len = strlen (((__suffix) + !(__suffix ))); if (__str_len >= __suffix_len) __result = memcmp (__str + __str_len - __suffix_len, ((__suffix) + !(__suffix)), __suffix_len ) == 0; } __result; }) : (g_str_has_suffix) (ws_optarg, "prefs" ) )) { |
| 1298 | has_extcap_options = true1; |
| 1299 | } |
| 1300 | is_capturing = false0; |
| 1301 | break; |
| 1302 | case 'i': |
| 1303 | has_extcap_options = true1; |
| 1304 | break; |
| 1305 | case 'o': |
| 1306 | if (g_str_has_prefix(ws_optarg, "extcap.")(__builtin_constant_p ("extcap.")? __extension__ ({ const char * const __str = (ws_optarg); const char * const __prefix = ( "extcap."); gboolean __result = (0); if (__str == ((void*)0) || __prefix == ((void*)0)) __result = (g_str_has_prefix) (__str , __prefix); else { const size_t __str_len = strlen (((__str) + !(__str))); const size_t __prefix_len = strlen (((__prefix ) + !(__prefix))); if (__str_len >= __prefix_len) __result = memcmp (((__str) + !(__str)), ((__prefix) + !(__prefix)), __prefix_len ) == 0; } __result; }) : (g_str_has_prefix) (ws_optarg, "extcap." ) )) { |
| 1307 | has_extcap_options = true1; |
| 1308 | } |
| 1309 | break; |
| 1310 | case 'P': /* Print packet summary info even when writing to a file */ |
| 1311 | print_packet_info = true1; |
| 1312 | print_summary = true1; |
| 1313 | break; |
| 1314 | case 'r': /* Read capture file x */ |
| 1315 | cf_name = g_strdup(ws_optarg)g_strdup_inline (ws_optarg); |
| 1316 | is_capturing = false0; |
| 1317 | break; |
| 1318 | case 'O': /* Only output these protocols */ |
| 1319 | output_only = g_strdup(ws_optarg)g_strdup_inline (ws_optarg); |
| 1320 | /* FALLTHROUGH */ |
| 1321 | case 'V': /* Verbose */ |
| 1322 | print_details = true1; |
| 1323 | print_packet_info = true1; |
| 1324 | break; |
| 1325 | case 'x': /* Print packet data in hex (and ASCII) */ |
| 1326 | print_hex = true1; |
| 1327 | /* The user asked for hex output, so let's ensure they get it, |
| 1328 | * even if they're writing to a file. |
| 1329 | */ |
| 1330 | print_packet_info = true1; |
| 1331 | break; |
| 1332 | case 'X': |
| 1333 | ex_opt_add(ws_optarg); |
| 1334 | break; |
| 1335 | case 'h': |
| 1336 | case 'v': |
| 1337 | is_capturing = false0; |
| 1338 | break; |
| 1339 | default: |
| 1340 | break; |
| 1341 | } |
| 1342 | } |
| 1343 | |
| 1344 | #ifndef HAVE_LUA1 |
| 1345 | if (ex_opt_count("lua_script") > 0) { |
| 1346 | cmdarg_err("This version of TShark was not built with support for Lua scripting."); |
| 1347 | exit_status = WS_EXIT_INIT_FAILED8; |
| 1348 | goto clean_exit; |
| 1349 | } |
| 1350 | #endif /* HAVE_LUA */ |
| 1351 | |
| 1352 | init_report_failure_message("TShark"); |
| 1353 | |
| 1354 | #ifdef HAVE_LIBPCAP1 |
| 1355 | capture_opts_init(&global_capture_opts, application_flavor_name_lower(), capture_opts_get_interface_list); |
| 1356 | capture_session_init(&global_capture_session, &cfile, |
| 1357 | capture_input_new_file, capture_input_new_packets, |
| 1358 | capture_input_drops, capture_input_error, |
| 1359 | capture_input_cfilter_error, capture_input_closed); |
| 1360 | #endif |
| 1361 | |
| 1362 | timestamp_set_type(TS_RELATIVE); |
| 1363 | timestamp_set_precision(TS_PREC_AUTO); |
| 1364 | timestamp_set_seconds_type(TS_SECONDS_DEFAULT); |
| 1365 | |
| 1366 | /* |
| 1367 | * Libwiretap must be initialized before libwireshark is, so that |
| 1368 | * dissection-time handlers for file-type-dependent blocks can |
| 1369 | * register using the file type/subtype value for the file type. |
| 1370 | */ |
| 1371 | application_file_extensions(&file_extensions, &num_extensions); |
| 1372 | wtap_init(true1, application_configuration_environment_prefix(), file_extensions, num_extensions); |
| 1373 | |
| 1374 | /* Register all dissectors; we must do this before checking for the |
| 1375 | "-G" flag, as the "-G" flag dumps information registered by the |
| 1376 | dissectors, and we must do it before we read the preferences, in |
| 1377 | case any dissectors register preferences. */ |
| 1378 | app_data.env_var_prefix = application_configuration_environment_prefix(); |
| 1379 | app_data.col_fmt = application_columns(); |
| 1380 | app_data.num_cols = application_num_columns(); |
| 1381 | app_data.register_func = register_all_protocols; |
| 1382 | app_data.handoff_func = register_all_protocol_handoffs; |
| 1383 | app_data.tap_reg_listeners = tap_reg_listener; |
| 1384 | if (!epan_init(NULL((void*)0), NULL((void*)0), true1, &app_data)) { |
| 1385 | exit_status = WS_EXIT_INIT_FAILED8; |
| 1386 | goto clean_exit; |
| 1387 | } |
| 1388 | |
| 1389 | /* Register extcap preferences only when needed. */ |
| 1390 | if (has_extcap_options || is_capturing) { |
| 1391 | /* |
| 1392 | * XXX - We don't properly handle the capture_no_extcap preference. |
| 1393 | * To make it work, before registering the extcap preferences we'd |
| 1394 | * have to read at least that preference for the chosen profile, and |
| 1395 | * also check to make sure an "-o" option didn't override it. |
| 1396 | * Then, after registering the extcap preferences, we'd have to |
| 1397 | * set the extcap preferences from the preferences file and "-o" |
| 1398 | * options on the command line. |
| 1399 | */ |
| 1400 | extcap_register_preferences(); |
| 1401 | } |
| 1402 | |
| 1403 | conversation_table_set_gui_info(init_iousers); |
| 1404 | endpoint_table_set_gui_info(init_endpoints); |
| 1405 | srt_table_iterate_tables(register_srt_tables, NULL((void*)0)); |
| 1406 | rtd_table_iterate_tables(register_rtd_tables, NULL((void*)0)); |
| 1407 | stat_tap_iterate_tables(register_simple_stat_tables, NULL((void*)0)); |
| 1408 | |
| 1409 | ws_debug("tshark reading settings")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 1409, __func__, "tshark reading settings"); } } while (0); |
| 1410 | |
| 1411 | /* Load libwireshark settings from the current profile. */ |
| 1412 | prefs_p = epan_load_settings(); |
| 1413 | prefs_loaded = true1; |
| 1414 | |
| 1415 | cap_file_init(&cfile); |
| 1416 | |
| 1417 | /* Print format defaults to this. */ |
| 1418 | print_format = PR_FMT_TEXT; |
| 1419 | delimiter_char = " "; |
| 1420 | |
| 1421 | output_fields = output_fields_new(); |
| 1422 | |
| 1423 | /* |
| 1424 | * To reset the options parser, set ws_optreset to 1 and set ws_optind to 1. |
| 1425 | * |
| 1426 | * Also reset ws_opterr to 1, so that error messages are printed by |
| 1427 | * getopt_long(). |
| 1428 | */ |
| 1429 | ws_optreset = 1; |
| 1430 | ws_optind = 1; |
| 1431 | ws_opterr = 1; |
| 1432 | |
| 1433 | /* Now get our args */ |
| 1434 | while ((opt = ws_getopt_long(argc, argv, optstring, long_options, NULL((void*)0))) != -1) { |
| 1435 | switch (opt) { |
| 1436 | case '2': /* Perform two-pass analysis */ |
| 1437 | if(epan_auto_reset){ |
| 1438 | cmdarg_err("-2 does not support auto session reset."); |
| 1439 | arg_error=true1; |
| 1440 | } |
| 1441 | perform_two_pass_analysis = true1; |
| 1442 | break; |
| 1443 | case 'M': |
| 1444 | if(perform_two_pass_analysis){ |
| 1445 | cmdarg_err("-M does not support two-pass analysis."); |
| 1446 | arg_error=true1; |
| 1447 | } |
| 1448 | if (!get_uint32(ws_optarg, "epan reset count", &epan_auto_reset_count)) |
| 1449 | arg_error = true1; |
| 1450 | |
| 1451 | epan_auto_reset = true1; |
| 1452 | break; |
| 1453 | case 'a': /* autostop criteria */ |
| 1454 | case 'b': /* Ringbuffer option */ |
| 1455 | case 'f': /* capture filter */ |
| 1456 | case 'g': /* enable group read access on file(s) */ |
| 1457 | case 'i': /* Use interface x */ |
| 1458 | case LONGOPT_SET_TSTAMP_TYPE1000 +2: /* Set capture timestamp type */ |
| 1459 | case 'p': /* Don't capture in promiscuous mode */ |
| 1460 | #ifdef HAVE_PCAP_REMOTE |
| 1461 | case 'A': /* Authentication */ |
| 1462 | #endif |
| 1463 | case 'I': /* Capture in monitor mode, if available */ |
| 1464 | case 's': /* Set the snapshot (capture) length */ |
| 1465 | case 'y': /* Set the pcap data link type */ |
| 1466 | case 'B': /* Buffer size */ |
| 1467 | case LONGOPT_NO_OPTIMIZE1000 +6: /* Don't optimize capture filter */ |
| 1468 | case LONGOPT_COMPRESS_TYPE1000 +3: /* compress type */ |
| 1469 | case LONGOPT_CAPTURE_TMPDIR1000 +4: /* capture temp directory */ |
| 1470 | case LONGOPT_UPDATE_INTERVAL1000 +5: /* sync pipe update interval */ |
| 1471 | /* These are options only for packet capture. */ |
| 1472 | #ifdef HAVE_LIBPCAP1 |
| 1473 | exit_status = capture_opts_add_opt(application_configuration_environment_prefix(), &global_capture_opts, opt, ws_optarg); |
| 1474 | if (exit_status != 0) { |
| 1475 | goto clean_exit; |
| 1476 | } |
| 1477 | #else |
| 1478 | capture_option_specified = true1; |
| 1479 | arg_error = true1; |
| 1480 | #endif |
| 1481 | break; |
| 1482 | case 'c': /* Stop after x packets */ |
| 1483 | #ifdef HAVE_LIBPCAP1 |
| 1484 | exit_status = capture_opts_add_opt(application_configuration_environment_prefix(), &global_capture_opts, opt, ws_optarg); |
| 1485 | if (exit_status != 0) { |
| 1486 | goto clean_exit; |
| 1487 | } |
| 1488 | #else |
| 1489 | if (!get_positive_int(ws_optarg, "packet count", &max_packet_count)) { |
| 1490 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1491 | goto clean_exit; |
| 1492 | } |
| 1493 | #endif |
| 1494 | break; |
| 1495 | case 'w': /* Write to file x */ |
| 1496 | output_file_name = g_strdup(ws_optarg)g_strdup_inline (ws_optarg); |
| 1497 | #ifdef HAVE_LIBPCAP1 |
| 1498 | exit_status = capture_opts_add_opt(application_configuration_environment_prefix(), &global_capture_opts, opt, ws_optarg); |
| 1499 | if (exit_status != 0) { |
| 1500 | goto clean_exit; |
| 1501 | } |
| 1502 | #endif |
| 1503 | break; |
| 1504 | case 'C': |
| 1505 | /* already processed; just ignore it now */ |
| 1506 | break; |
| 1507 | case 'D': /* Print a list of capture devices and exit */ |
| 1508 | #ifdef HAVE_LIBPCAP1 |
| 1509 | exit_status = EXIT_SUCCESS0; |
| 1510 | if_list = capture_interface_list(global_capture_opts.app_name, &err, &err_str,NULL((void*)0)); |
| 1511 | if (err != 0) { |
| 1512 | /* |
| 1513 | * An error occurred when fetching the local |
| 1514 | * interfaces. Report it. |
| 1515 | */ |
| 1516 | cmdarg_err("%s", err_str); |
| 1517 | g_free(err_str); |
| 1518 | exit_status = WS_EXIT_PCAP_ERROR13; |
| 1519 | } |
| 1520 | if (if_list == NULL((void*)0)) { |
| 1521 | /* |
| 1522 | * No interfaces were found. If that's not the |
| 1523 | * result of an error when fetching the local |
| 1524 | * interfaces, let the user know. |
| 1525 | */ |
| 1526 | if (err == 0) { |
| 1527 | cmdarg_err("There are no interfaces on which a capture can be done"); |
| 1528 | exit_status = WS_EXIT_NO_INTERFACES12; |
| 1529 | } |
| 1530 | goto clean_exit; |
| 1531 | } |
| 1532 | capture_opts_print_interfaces(if_list); |
| 1533 | free_interface_list(if_list); |
| 1534 | goto clean_exit; |
| 1535 | #else |
| 1536 | capture_option_specified = true1; |
| 1537 | arg_error = true1; |
| 1538 | #endif |
| 1539 | break; |
| 1540 | case 'e': |
| 1541 | /* Field entry */ |
| 1542 | { |
| 1543 | const char* col_field = try_convert_to_column_field(ws_optarg); |
| 1544 | if (col_field) { |
| 1545 | output_fields_add(output_fields, col_field); |
| 1546 | } else { |
| 1547 | header_field_info *hfi = proto_registrar_get_byalias(ws_optarg); |
| 1548 | if (hfi) |
| 1549 | output_fields_add(output_fields, hfi->abbrev); |
| 1550 | else |
| 1551 | output_fields_add(output_fields, ws_optarg); |
| 1552 | } |
| 1553 | } |
| 1554 | break; |
| 1555 | case 'E': |
| 1556 | /* Field option */ |
| 1557 | if (!output_fields_set_option(output_fields, ws_optarg)) { |
| 1558 | cmdarg_err("\"%s\" is not a valid field output option=value pair.", ws_optarg); |
| 1559 | output_fields_list_options(stderrstderr); |
| 1560 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1561 | goto clean_exit; |
| 1562 | } |
| 1563 | break; |
| 1564 | case 'F': |
| 1565 | out_file_type = wtap_name_to_file_type_subtype(ws_optarg); |
| 1566 | if (out_file_type < 0) { |
| 1567 | cmdarg_err("\"%s\" isn't a valid capture file type", ws_optarg); |
| 1568 | list_capture_types(); |
| 1569 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1570 | goto clean_exit; |
| 1571 | } |
| 1572 | break; |
| 1573 | case 'G': |
| 1574 | /* already processed; just ignore it now */ |
| 1575 | break; |
| 1576 | case 'j': |
| 1577 | if (!protocolfilter_add_opt(ws_optarg, PF_NONE)) { |
| 1578 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1579 | goto clean_exit; |
| 1580 | } |
| 1581 | break; |
| 1582 | case 'J': |
| 1583 | if (!protocolfilter_add_opt(ws_optarg, PF_INCLUDE_CHILDREN)) { |
| 1584 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1585 | goto clean_exit; |
| 1586 | } |
| 1587 | break; |
| 1588 | case 'W': /* Select extra information to save in our capture file */ |
| 1589 | /* This is patterned after the -N flag which may not be the best idea. */ |
| 1590 | if (strchr(ws_optarg, 'n')) { |
| 1591 | out_file_name_res = true1; |
| 1592 | } else { |
| 1593 | cmdarg_err("Invalid -W argument \"%s\"; it must be one of:", ws_optarg); |
| 1594 | cmdarg_err_cont("\t'n' write network address resolution information (pcapng only)"); |
| 1595 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1596 | goto clean_exit; |
| 1597 | } |
| 1598 | break; |
| 1599 | case 'H': /* Read address to name mappings from a hosts file */ |
| 1600 | if (! add_hosts_file(ws_optarg)) |
| 1601 | { |
| 1602 | cmdarg_err("Can't read host entries from \"%s\"", ws_optarg); |
| 1603 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1604 | goto clean_exit; |
| 1605 | } |
| 1606 | out_file_name_res = true1; |
| 1607 | break; |
| 1608 | |
| 1609 | case 'h': /* Print help and exit */ |
| 1610 | show_help_header("Dump and analyze network traffic."); |
| 1611 | print_usage(stdoutstdout); |
| 1612 | exit_status = EXIT_SUCCESS0; |
| 1613 | goto clean_exit; |
| 1614 | break; |
| 1615 | case 'l': /* "Line-buffer" standard output */ |
| 1616 | /* The ANSI C standard does not appear to *require* that a line-buffered |
| 1617 | stream be flushed to the host environment whenever a newline is |
| 1618 | written, it just says that, on such a stream, characters "are |
| 1619 | intended to be transmitted to or from the host environment as a |
| 1620 | block when a new-line character is encountered". |
| 1621 | |
| 1622 | The Visual C++ 6.0 C implementation doesn't do what is intended; |
| 1623 | even if you set a stream to be line-buffered, it still doesn't |
| 1624 | flush the buffer at the end of every line. |
| 1625 | |
| 1626 | The whole reason for the "-l" flag in either tcpdump or TShark |
| 1627 | is to allow the output of a live capture to be piped to a program |
| 1628 | or script and to have that script see the information for the |
| 1629 | packet as soon as it's printed, rather than having to wait until |
| 1630 | a standard I/O buffer fills up. |
| 1631 | |
| 1632 | So, if the "-l" flag is specified, we flush the standard output |
| 1633 | at the end of a packet. This will do the right thing if we're |
| 1634 | printing packet summary lines, and, as we print the entire protocol |
| 1635 | tree for a single packet without waiting for anything to happen, |
| 1636 | it should be as good as line-buffered mode if we're printing |
| 1637 | protocol trees - arguably even better, as it may do fewer |
| 1638 | writes. */ |
| 1639 | line_buffered = true1; |
| 1640 | #ifdef HAVE_LIBPCAP1 |
| 1641 | /* Set the update-interval to 0 so that dumpcap reports packets |
| 1642 | * as soon as available instead of buffering them. |
| 1643 | */ |
| 1644 | exit_status = capture_opts_add_opt(application_configuration_environment_prefix(), &global_capture_opts, opt, ws_optarg); |
| 1645 | if (exit_status != 0) { |
| 1646 | goto clean_exit; |
| 1647 | } |
| 1648 | #endif |
| 1649 | break; |
| 1650 | case 'L': /* Print list of link-layer types and exit */ |
| 1651 | #ifdef HAVE_LIBPCAP1 |
| 1652 | caps_queries |= CAPS_QUERY_LINK_TYPES; |
| 1653 | #else |
| 1654 | capture_option_specified = true1; |
| 1655 | arg_error = true1; |
| 1656 | #endif |
| 1657 | break; |
| 1658 | case LONGOPT_LIST_TSTAMP_TYPES1000 +1: /* List possible timestamp types */ |
| 1659 | #ifdef HAVE_LIBPCAP1 |
| 1660 | caps_queries |= CAPS_QUERY_TIMESTAMP_TYPES; |
| 1661 | #else |
| 1662 | capture_option_specified = true1; |
| 1663 | arg_error = true1; |
| 1664 | #endif |
| 1665 | break; |
| 1666 | case 'o': /* Override preference from command line */ |
| 1667 | { |
| 1668 | char *errmsg = NULL((void*)0); |
| 1669 | |
| 1670 | switch (prefs_set_pref(ws_optarg, &errmsg)) { |
| 1671 | |
| 1672 | case PREFS_SET_OK: |
| 1673 | break; |
| 1674 | |
| 1675 | case PREFS_SET_SYNTAX_ERR: |
| 1676 | cmdarg_err("Invalid -o flag \"%s\"%s%s", ws_optarg, |
| 1677 | errmsg ? ": " : "", errmsg ? errmsg : ""); |
| 1678 | g_free(errmsg); |
| 1679 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1680 | goto clean_exit; |
| 1681 | break; |
| 1682 | |
| 1683 | case PREFS_SET_NO_SUCH_PREF: |
| 1684 | cmdarg_err("-o flag \"%s\" specifies unknown preference", ws_optarg); |
| 1685 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1686 | goto clean_exit; |
| 1687 | break; |
| 1688 | |
| 1689 | case PREFS_SET_OBSOLETE: |
| 1690 | cmdarg_err("-o flag \"%s\" specifies obsolete preference", ws_optarg); |
| 1691 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1692 | goto clean_exit; |
| 1693 | break; |
| 1694 | } |
| 1695 | break; |
| 1696 | } |
| 1697 | case 'q': /* Quiet */ |
| 1698 | quiet = true1; |
| 1699 | break; |
| 1700 | case 'Q': /* Really quiet */ |
| 1701 | quiet = true1; |
| 1702 | really_quiet = true1; |
| 1703 | break; |
| 1704 | case 'r': |
| 1705 | /* already processed; just ignore it now */ |
| 1706 | break; |
| 1707 | case 'R': /* Read file filter */ |
| 1708 | rfilter = ws_optarg; |
| 1709 | break; |
| 1710 | case 'P': |
| 1711 | /* already processed; just ignore it now */ |
| 1712 | break; |
| 1713 | case 'S': /* Set the line Separator to be printed between packets */ |
| 1714 | separator = ws_optarg; |
| 1715 | break; |
| 1716 | case 'T': /* printing Type */ |
| 1717 | /* output_action has been already set. It means multiple -T. */ |
| 1718 | if (output_action > WRITE_NONE) { |
| 1719 | cmdarg_err("Multiple -T parameters are unsupported"); |
| 1720 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1721 | goto clean_exit; |
| 1722 | } |
| 1723 | print_packet_info = true1; |
| 1724 | if (strcmp(ws_optarg, "text") == 0) { |
| 1725 | output_action = WRITE_TEXT; |
| 1726 | print_format = PR_FMT_TEXT; |
| 1727 | } else if (strcmp(ws_optarg, "tabs") == 0) { |
| 1728 | output_action = WRITE_TEXT; |
| 1729 | print_format = PR_FMT_TEXT; |
| 1730 | delimiter_char = "\t"; |
| 1731 | } else if (strcmp(ws_optarg, "ps") == 0) { |
| 1732 | output_action = WRITE_TEXT; |
| 1733 | print_format = PR_FMT_PS; |
| 1734 | } else if (strcmp(ws_optarg, "pdml") == 0) { |
| 1735 | output_action = WRITE_XML; |
| 1736 | print_details = true1; /* Need details */ |
| 1737 | print_summary = false0; /* Don't allow summary */ |
| 1738 | } else if (strcmp(ws_optarg, "psml") == 0) { |
| 1739 | output_action = WRITE_XML; |
| 1740 | print_details = false0; /* Don't allow details */ |
| 1741 | print_summary = true1; /* Need summary */ |
| 1742 | } else if (strcmp(ws_optarg, "fields") == 0) { |
| 1743 | output_action = WRITE_FIELDS; |
| 1744 | print_details = true1; /* Need full tree info */ |
| 1745 | print_summary = false0; /* Don't allow summary */ |
| 1746 | } else if (strcmp(ws_optarg, "json") == 0) { |
| 1747 | output_action = WRITE_JSON; |
| 1748 | print_details = true1; /* Need details */ |
| 1749 | print_summary = false0; /* Don't allow summary */ |
| 1750 | } else if (strcmp(ws_optarg, "ek") == 0) { |
| 1751 | output_action = WRITE_EK; |
| 1752 | if (!print_summary) |
| 1753 | print_details = true1; |
| 1754 | } else if (strcmp(ws_optarg, "jsonraw") == 0) { |
| 1755 | output_action = WRITE_JSON_RAW; |
| 1756 | print_details = true1; /* Need details */ |
| 1757 | print_summary = false0; /* Don't allow summary */ |
| 1758 | } |
| 1759 | else { |
| 1760 | cmdarg_err("Invalid -T parameter \"%s\"; it must be one of:", ws_optarg); /* x */ |
| 1761 | cmdarg_err_cont("\t\"fields\" The values of fields specified with the -e option, in a form\n" |
| 1762 | "\t specified by the -E option.\n" |
| 1763 | "\t\"pdml\" Packet Details Markup Language, an XML-based format for the\n" |
| 1764 | "\t details of a decoded packet. This information is equivalent to\n" |
| 1765 | "\t the packet details printed with the -V flag.\n" |
| 1766 | "\t\"ps\" PostScript for a human-readable one-line summary of each of\n" |
| 1767 | "\t the packets, or a multi-line view of the details of each of\n" |
| 1768 | "\t the packets, depending on whether the -V flag was specified.\n" |
| 1769 | "\t\"psml\" Packet Summary Markup Language, an XML-based format for the\n" |
| 1770 | "\t summary information of a decoded packet. This information is\n" |
| 1771 | "\t equivalent to the information shown in the one-line summary\n" |
| 1772 | "\t printed by default.\n" |
| 1773 | "\t\"json\" Packet Summary, an JSON-based format for the details\n" |
| 1774 | "\t summary information of a decoded packet. This information is \n" |
| 1775 | "\t equivalent to the packet details printed with the -V flag.\n" |
| 1776 | "\t\"jsonraw\" Packet Details, a JSON-based format for machine parsing\n" |
| 1777 | "\t including only raw hex decoded fields (same as -T json -x but\n" |
| 1778 | "\t without text decoding, only raw fields included). \n" |
| 1779 | "\t\"ek\" Packet Details, an EK JSON-based format for the bulk insert \n" |
| 1780 | "\t into elastic search cluster. This information is \n" |
| 1781 | "\t equivalent to the packet details printed with the -V flag.\n" |
| 1782 | "\t\"text\" Text of a human-readable one-line summary of each of the\n" |
| 1783 | "\t packets, or a multi-line view of the details of each of the\n" |
| 1784 | "\t packets, depending on whether the -V flag was specified.\n" |
| 1785 | "\t This is the default.\n" |
| 1786 | "\t\"tabs\" Similar to the text report except that each column of the\n" |
| 1787 | "\t human-readable one-line summary is delimited with an ASCII\n" |
| 1788 | "\t horizontal tab character."); |
| 1789 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1790 | goto clean_exit; |
| 1791 | } |
| 1792 | break; |
| 1793 | case 'U': /* Export PDUs to file */ |
| 1794 | if (strcmp(ws_optarg, "") == 0 || strcmp(ws_optarg, "?") == 0) { |
| 1795 | list_export_pdu_taps(); |
| 1796 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1797 | goto clean_exit; |
| 1798 | } |
| 1799 | pdu_export_arg = g_strdup(ws_optarg)g_strdup_inline (ws_optarg); |
| 1800 | break; |
| 1801 | case 'v': /* Show version and exit */ |
| 1802 | #ifdef ENABLE_CHECK_FILTER |
| 1803 | /* If we're testing start-up of the epan library, go ahead and |
| 1804 | * load all the delayed initialization prefixes (e.g. Diameter) |
| 1805 | * so that they are reported on. |
| 1806 | */ |
| 1807 | proto_initialize_all_prefixes(); |
| 1808 | #endif |
| 1809 | show_version(); |
| 1810 | /* We don't really have to cleanup here, but it's a convenient way to test |
| 1811 | * start-up and shut-down of the epan library without any UI-specific |
| 1812 | * cruft getting in the way. Makes the results of running |
| 1813 | * $ ./tools/valgrind-wireshark -n |
| 1814 | * much more useful. */ |
| 1815 | epan_cleanup(); |
| 1816 | extcap_cleanup(); |
| 1817 | exit_status = EXIT_SUCCESS0; |
| 1818 | goto clean_exit; |
| 1819 | case 'O': /* Only output these protocols */ |
| 1820 | /* already processed; just ignore it now */ |
| 1821 | break; |
| 1822 | case 'V': /* Verbose */ |
| 1823 | /* already processed; just ignore it now */ |
| 1824 | break; |
| 1825 | case 'x': /* Print packet data in hex (and ASCII) */ |
| 1826 | /* already processed; just ignore it now */ |
| 1827 | break; |
| 1828 | case 'X': |
| 1829 | /* already processed; just ignore it now */ |
| 1830 | break; |
| 1831 | case 'Y': |
| 1832 | dfilter = g_strdup(ws_optarg)g_strdup_inline (ws_optarg); |
| 1833 | break; |
| 1834 | case 'z': |
| 1835 | /* We won't call the init function for the stat this soon |
| 1836 | as it would disallow MATE's fields (which are registered |
| 1837 | by the preferences set callback) from being used as |
| 1838 | part of a tap filter. Instead, we just add the argument |
| 1839 | to a list of stat arguments. */ |
| 1840 | if (strcmp("help", ws_optarg) == 0) { |
| 1841 | fprintf(stderrstderr, "tshark: The available statistics for the \"-z\" option are:\n"); |
| 1842 | list_stat_cmd_args(); |
| 1843 | exit_status = EXIT_SUCCESS0; |
| 1844 | goto clean_exit; |
| 1845 | } |
| 1846 | if (!process_stat_cmd_arg(ws_optarg)) { |
| 1847 | cmdarg_err("Invalid -z argument \"%s\"; it must be one of:", ws_optarg); |
| 1848 | list_stat_cmd_args(); |
| 1849 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1850 | goto clean_exit; |
| 1851 | } |
| 1852 | break; |
| 1853 | case 'd': /* Decode as rule */ |
| 1854 | case 'K': /* Kerberos keytab file */ |
| 1855 | case 'n': /* No name resolution */ |
| 1856 | case 'N': /* Select what types of addresses/port #s to resolve */ |
| 1857 | case 't': /* Time stamp type */ |
| 1858 | case 'u': /* Seconds type */ |
| 1859 | case LONGOPT_DISABLE_PROTOCOL2000 +1: /* disable dissection of protocol */ |
| 1860 | case LONGOPT_ENABLE_HEURISTIC2000 +2: /* enable heuristic dissection of protocol */ |
| 1861 | case LONGOPT_DISABLE_HEURISTIC2000 +3: /* disable heuristic dissection of protocol */ |
| 1862 | case LONGOPT_ENABLE_PROTOCOL2000 +4: /* enable dissection of protocol (that is disabled by default) */ |
| 1863 | case LONGOPT_ONLY_PROTOCOLS2000 +5: /* enable dissection of only this comma separated list of protocols */ |
| 1864 | case LONGOPT_DISABLE_ALL_PROTOCOLS2000 +6: /* enable dissection of protocol (that is disabled by default) */ |
| 1865 | if (!dissect_opts_handle_opt(opt, ws_optarg)) { |
| 1866 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1867 | goto clean_exit; |
| 1868 | } |
| 1869 | break; |
| 1870 | case LONGOPT_EXPORT_OBJECTS3000 +1: /* --export-objects */ |
| 1871 | if (strcmp("help", ws_optarg) == 0) { |
| 1872 | fprintf(stderrstderr, "tshark: The available export object types for the \"--export-objects\" option are:\n"); |
| 1873 | eo_list_object_types(); |
| 1874 | exit_status = EXIT_SUCCESS0; |
| 1875 | goto clean_exit; |
| 1876 | } |
| 1877 | if (!eo_tap_opt_add(ws_optarg)) { |
| 1878 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1879 | goto clean_exit; |
| 1880 | } |
| 1881 | break; |
| 1882 | case LONGOPT_EXPORT_TLS_SESSION_KEYS3000 +5: /* --export-tls-session-keys */ |
| 1883 | tls_session_keys_file = ws_optarg; |
| 1884 | break; |
| 1885 | case LONGOPT_COLOR3000 +2: /* print in color where appropriate */ |
| 1886 | dissect_color = true1; |
| 1887 | /* This has no effect if we don't print packet info or filter |
| 1888 | (we can filter on the coloring rules). Should we warn or |
| 1889 | error later if so, instead of silently ignoring it? */ |
| 1890 | break; |
| 1891 | case LONGOPT_NO_DUPLICATE_KEYS3000 +3: |
| 1892 | no_duplicate_keys = true1; |
| 1893 | node_children_grouper = proto_node_group_children_by_json_key; |
| 1894 | break; |
| 1895 | case LONGOPT_ELASTIC_MAPPING_FILTER3000 +4: |
| 1896 | /* |
| 1897 | * XXX - A long option that exists to alter one other option |
| 1898 | * (-G elastic-mapping) and for no other reason seems verbose. |
| 1899 | * Deprecate in favor of -G elastic-mapping,<filter> ? |
| 1900 | */ |
| 1901 | elastic_mapping_filter = ws_optarg; |
| 1902 | break; |
| 1903 | case LONGOPT_CAPTURE_COMMENT3000 +6: /* capture comment */ |
| 1904 | if (capture_comments == NULL((void*)0)) { |
| 1905 | capture_comments = g_ptr_array_new_with_free_func(g_free); |
| 1906 | } |
| 1907 | g_ptr_array_add(capture_comments, g_strdup(ws_optarg)g_strdup_inline (ws_optarg)); |
| 1908 | break; |
| 1909 | case LONGOPT_HEXDUMP3000 +7: |
| 1910 | print_hex = true1; |
| 1911 | print_packet_info = true1; |
| 1912 | if (strcmp(ws_optarg, "all") == 0) |
| 1913 | hexdump_source_option = HEXDUMP_SOURCE_MULTI(0x0000U); |
| 1914 | else if (strcmp(ws_optarg, "frames") == 0) |
| 1915 | hexdump_source_option = HEXDUMP_SOURCE_PRIMARY(0x0004U); |
| 1916 | else if (strcmp(ws_optarg, "ascii") == 0) |
| 1917 | hexdump_ascii_option = HEXDUMP_ASCII_INCLUDE(0x0000U); |
| 1918 | else if (strcmp(ws_optarg, "delimit") == 0) |
| 1919 | hexdump_ascii_option = HEXDUMP_ASCII_DELIMIT(0x0001U); |
| 1920 | else if (strcmp(ws_optarg, "noascii") == 0) |
| 1921 | hexdump_ascii_option = HEXDUMP_ASCII_EXCLUDE(0x0002U); |
| 1922 | else if (strcmp(ws_optarg, "time") == 0) |
| 1923 | hexdump_timestamp_option = HEXDUMP_TIMESTAMP(0x0008U); |
| 1924 | else if (strcmp(ws_optarg, "notime") == 0) |
| 1925 | hexdump_timestamp_option = HEXDUMP_TIMESTAMP_NONE(0x0000U); |
| 1926 | else if (strcmp("help", ws_optarg) == 0) { |
| 1927 | hexdump_option_help(stdoutstdout); |
| 1928 | exit_status = EXIT_SUCCESS0; |
| 1929 | goto clean_exit; |
| 1930 | } else { |
| 1931 | fprintf(stderrstderr, "tshark: \"%s\" is an invalid value for --hexdump <hexoption>\n", ws_optarg); |
| 1932 | fprintf(stderrstderr, "For valid <hexoption> values enter: tshark --hexdump help\n"); |
| 1933 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1934 | goto clean_exit; |
| 1935 | } |
| 1936 | break; |
| 1937 | case LONGOPT_SELECTED_FRAME3000 +8: |
| 1938 | /* Hidden option to mark a frame as "selected". Used for testing and debugging. |
| 1939 | * Only active in two-pass mode. */ |
| 1940 | if (!ws_strtou32(ws_optarg, NULL((void*)0), &selected_frame_number)) { |
| 1941 | fprintf(stderrstderr, "tshark: \"%s\" is not a valid frame number\n", ws_optarg); |
| 1942 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1943 | goto clean_exit; |
| 1944 | } |
| 1945 | break; |
| 1946 | case LONGOPT_PRINT_TIMERS3000 +9: |
| 1947 | opt_print_timers = true1; |
| 1948 | break; |
| 1949 | case LONGOPT_GLOBAL_PROFILE3000 +10: |
| 1950 | /* already processed; just ignore it now */ |
| 1951 | break; |
| 1952 | case LONGOPT_COMPRESS3000 +11: /* compress type */ |
| 1953 | compression_type = ws_name_to_compression_type(ws_optarg); |
| 1954 | if (compression_type == WS_FILE_UNKNOWN_COMPRESSION) { |
| 1955 | cmdarg_err("\"%s\" isn't a valid output compression mode", |
| 1956 | ws_optarg); |
| 1957 | list_output_compression_types(); |
| 1958 | goto clean_exit; |
| 1959 | } |
| 1960 | break; |
| 1961 | case '?': /* Bad flag - print usage message */ |
| 1962 | default: |
| 1963 | /* wslog arguments are okay */ |
| 1964 | if (ws_log_is_wslog_arg(opt)) |
| 1965 | break; |
| 1966 | |
| 1967 | switch(ws_optopt) { |
| 1968 | case 'F': |
| 1969 | list_capture_types(); |
| 1970 | break; |
| 1971 | case 'G': |
| 1972 | glossary_option_help(); |
| 1973 | break; |
| 1974 | case LONGOPT_COMPRESS3000 +11: |
| 1975 | case LONGOPT_COMPRESS_TYPE1000 +3: |
| 1976 | list_output_compression_types(); |
| 1977 | break; |
| 1978 | default: |
| 1979 | print_usage(stderrstderr); |
| 1980 | } |
| 1981 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 1982 | goto clean_exit; |
| 1983 | break; |
| 1984 | } |
| 1985 | } |
| 1986 | |
| 1987 | /* set the default output action to TEXT */ |
| 1988 | if (output_action == WRITE_NONE) |
| 1989 | output_action = WRITE_TEXT; |
| 1990 | |
| 1991 | /* set the default file type to pcapng */ |
| 1992 | if (out_file_type == WTAP_FILE_TYPE_SUBTYPE_UNKNOWN-1) |
| 1993 | out_file_type = wtap_pcapng_file_type_subtype(); |
| 1994 | |
| 1995 | /* |
| 1996 | * Print packet summary information is the default if neither -V or -x |
| 1997 | * were specified. Note that this is new behavior, which allows for the |
| 1998 | * possibility of printing only hex/ascii output without necessarily |
| 1999 | * requiring that either the summary or details be printed too. |
| 2000 | */ |
| 2001 | if (!print_summary && !print_details && !print_hex) |
| 2002 | print_summary = true1; |
| 2003 | |
| 2004 | if (no_duplicate_keys && output_action != WRITE_JSON && output_action != WRITE_JSON_RAW) { |
| 2005 | cmdarg_err("--no-duplicate-keys can only be used with \"-T json\" and \"-T jsonraw\""); |
| 2006 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2007 | goto clean_exit; |
| 2008 | } |
| 2009 | |
| 2010 | /* If we specified output fields, but not the output field type... */ |
| 2011 | /* XXX: If we specified both output fields with -e *and* protocol filters |
| 2012 | * with -j/-J, only the former are used. Should we warn or abort? |
| 2013 | * This also doesn't distinguish PDML from PSML, but shouldn't allow the |
| 2014 | * latter. |
| 2015 | */ |
| 2016 | if ((WRITE_FIELDS != output_action && WRITE_XML != output_action && WRITE_JSON != output_action && WRITE_EK != output_action) && 0 != output_fields_num_fields(output_fields)) { |
| 2017 | cmdarg_err("Output fields were specified with \"-e\", " |
| 2018 | "but \"-Tek, -Tfields, -Tjson or -Tpdml\" was not specified."); |
| 2019 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2020 | goto clean_exit; |
| 2021 | } else if (WRITE_FIELDS == output_action && 0 == output_fields_num_fields(output_fields)) { |
| 2022 | cmdarg_err("\"-Tfields\" was specified, but no fields were " |
| 2023 | "specified with \"-e\"."); |
| 2024 | |
| 2025 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2026 | goto clean_exit; |
| 2027 | } |
| 2028 | |
| 2029 | if (dissect_color) { |
| 2030 | if (!color_filters_init(&err_msg, NULL((void*)0), application_configuration_environment_prefix())) { |
| 2031 | fprintf(stderrstderr, "%s\n", err_msg); |
| 2032 | g_free(err_msg); |
| 2033 | } |
| 2034 | } |
| 2035 | |
| 2036 | /* If no capture filter or display filter has been specified, and there are |
| 2037 | still command-line arguments, treat them as the tokens of a capture |
| 2038 | filter (if no "-r" flag was specified) or a display filter (if a "-r" |
| 2039 | flag was specified. */ |
| 2040 | if (ws_optind < argc) { |
| 2041 | if (cf_name != NULL((void*)0)) { |
| 2042 | if (dfilter != NULL((void*)0)) { |
| 2043 | cmdarg_err("Display filters were specified both with \"-Y\" " |
| 2044 | "and with additional command-line arguments."); |
| 2045 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2046 | goto clean_exit; |
| 2047 | } |
| 2048 | dfilter = get_args_as_string(argc, argv, ws_optind); |
| 2049 | } else { |
| 2050 | #ifdef HAVE_LIBPCAP1 |
| 2051 | unsigned i; |
| 2052 | |
| 2053 | if (global_capture_opts.default_options.cfilter) { |
| 2054 | cmdarg_err("A default capture filter was specified both with \"-f\"" |
| 2055 | " and with additional command-line arguments."); |
| 2056 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2057 | goto clean_exit; |
| 2058 | } |
| 2059 | for (i = 0; i < global_capture_opts.ifaces->len; i++) { |
| 2060 | interface_options *interface_opts; |
| 2061 | interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i)(((interface_options*) (void *) (global_capture_opts.ifaces)-> data) [(i)]); |
| 2062 | if (interface_opts->cfilter == NULL((void*)0)) { |
| 2063 | interface_opts->cfilter = get_args_as_string(argc, argv, ws_optind); |
| 2064 | } else { |
| 2065 | cmdarg_err("A capture filter was specified both with \"-f\"" |
| 2066 | " and with additional command-line arguments."); |
| 2067 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2068 | goto clean_exit; |
| 2069 | } |
| 2070 | } |
| 2071 | global_capture_opts.default_options.cfilter = get_args_as_string(argc, argv, ws_optind); |
| 2072 | #else |
| 2073 | capture_option_specified = true1; |
| 2074 | #endif |
| 2075 | } |
| 2076 | } |
| 2077 | |
| 2078 | if (!output_file_name) { |
| 2079 | /* We're not saving the capture to a file; if "-q" wasn't specified, |
| 2080 | we should print packet information */ |
| 2081 | if (!quiet) |
| 2082 | print_packet_info = true1; |
| 2083 | } else { |
| 2084 | const char *save_file = output_file_name; |
| 2085 | /* We're saving to a file; if we're writing to the standard output. |
| 2086 | and we'll also be writing dissected packets to the standard |
| 2087 | output, reject the request. At best, we could redirect that |
| 2088 | to the standard error; we *can't* write both to the standard |
| 2089 | output and have either of them be useful. */ |
| 2090 | if (strcmp(save_file, "-") == 0 && print_packet_info) { |
| 2091 | cmdarg_err("You can't write both raw packet data and dissected packets" |
| 2092 | " to the standard output."); |
| 2093 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2094 | goto clean_exit; |
| 2095 | } |
| 2096 | if (compression_type == WS_FILE_UNKNOWN_COMPRESSION) { |
| 2097 | /* An explicitly specified compression type overrides filename |
| 2098 | * magic. (Should we allow a way to specify "no" compression |
| 2099 | * with, e.g. a ".gz" extension?) */ |
| 2100 | const char *sfx = strrchr(save_file, '.'); |
| 2101 | if (sfx) { |
| 2102 | compression_type = ws_extension_to_compression_type(sfx + 1); |
| 2103 | } |
| 2104 | } |
| 2105 | } |
| 2106 | |
| 2107 | if (compression_type == WS_FILE_UNKNOWN_COMPRESSION) { |
| 2108 | compression_type = WS_FILE_UNCOMPRESSED; |
| 2109 | } |
| 2110 | |
| 2111 | if (!ws_can_write_compression_type(compression_type)) { |
| 2112 | cmdarg_err("Output files can't be written as %s", |
| 2113 | ws_compression_type_description(compression_type)); |
| 2114 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2115 | goto clean_exit; |
| 2116 | } |
| 2117 | |
| 2118 | if (compression_type != WS_FILE_UNCOMPRESSED && !wtap_dump_can_compress(out_file_type)) { |
| 2119 | cmdarg_err("The file format %s can't be written to output compressed format", |
| 2120 | wtap_file_type_subtype_name(out_file_type)); |
| 2121 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2122 | goto clean_exit; |
| 2123 | } |
| 2124 | |
| 2125 | /* XXX - We have two different long options for compression type; |
| 2126 | * one (undocumented) for live capturing and one for not. That is confusing. |
| 2127 | * LONGOPT_COMPRESS doesn't set "capture_option_specified" because it can be |
| 2128 | * used when capturing or when not capturing. |
| 2129 | */ |
| 2130 | if (compression_type != WS_FILE_UNCOMPRESSED && is_capturing) { |
| 2131 | #ifdef HAVE_LIBPCAP1 |
| 2132 | exit_status = capture_opts_add_opt(application_configuration_environment_prefix(), &global_capture_opts, LONGOPT_COMPRESS_TYPE1000 +3, ws_compression_type_name(compression_type)); |
| 2133 | if (exit_status != 0) { |
| 2134 | goto clean_exit; |
| 2135 | } |
| 2136 | #else |
| 2137 | capture_option_specified = true1; |
| 2138 | arg_error = true1; |
| 2139 | #endif |
| 2140 | } |
| 2141 | |
| 2142 | #ifndef HAVE_LIBPCAP1 |
| 2143 | if (capture_option_specified) |
| 2144 | cmdarg_err("This version of TShark was not built with support for capturing packets."); |
| 2145 | #endif |
| 2146 | if (arg_error) { |
| 2147 | print_usage(stderrstderr); |
| 2148 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2149 | goto clean_exit; |
| 2150 | } |
| 2151 | |
| 2152 | if (print_hex) { |
| 2153 | if (output_action != WRITE_TEXT && output_action != WRITE_JSON && output_action != WRITE_JSON_RAW && output_action != WRITE_EK) { |
| 2154 | cmdarg_err("Raw packet hex data can only be printed as text, PostScript, JSON, JSONRAW or EK JSON"); |
| 2155 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2156 | goto clean_exit; |
| 2157 | } |
| 2158 | } |
| 2159 | |
| 2160 | if (output_only != NULL((void*)0)) { |
| 2161 | char *ps; |
| 2162 | |
| 2163 | if (!print_details) { |
| 2164 | cmdarg_err("-O requires -V"); |
| 2165 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2166 | goto clean_exit; |
| 2167 | } |
| 2168 | |
| 2169 | output_only_tables = g_hash_table_new (g_str_hash, g_str_equal); |
| 2170 | for (ps = strtok (output_only, ","); ps; ps = strtok (NULL((void*)0), ",")) { |
| 2171 | const char *name = ps; |
| 2172 | header_field_info *hfi = proto_registrar_get_byalias(name); |
| 2173 | if (hfi) { |
| 2174 | name = hfi->abbrev; |
| 2175 | } |
| 2176 | g_hash_table_insert(output_only_tables, (void *)name, (void *)name); |
| 2177 | } |
| 2178 | } |
| 2179 | |
| 2180 | if (rfilter != NULL((void*)0) && !perform_two_pass_analysis) { |
| 2181 | cmdarg_err("-R without -2 is deprecated. For single-pass filtering use -Y."); |
| 2182 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2183 | goto clean_exit; |
| 2184 | } |
| 2185 | |
| 2186 | #ifdef HAVE_LIBPCAP1 |
| 2187 | if (caps_queries) { |
| 2188 | /* We're supposed to list the link-layer/timestamp types for an interface; |
| 2189 | did the user also specify a capture file to be read? */ |
| 2190 | if (cf_name) { |
| 2191 | /* Yes - that's bogus. */ |
| 2192 | cmdarg_err("You can't specify %s and a capture file to be read.", |
| 2193 | caps_queries & CAPS_QUERY_LINK_TYPES ? "-L" : "--list-time-stamp-types"); |
| 2194 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2195 | goto clean_exit; |
| 2196 | } |
| 2197 | /* No - did they specify a ring buffer option? */ |
| 2198 | if (global_capture_opts.multi_files_on) { |
| 2199 | cmdarg_err("Ring buffer requested, but a capture isn't being done."); |
| 2200 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2201 | goto clean_exit; |
| 2202 | } |
| 2203 | } else { |
| 2204 | if (cf_name) { |
| 2205 | /* |
| 2206 | * "-r" was specified, so we're reading a capture file. |
| 2207 | * Capture options don't apply here. |
| 2208 | */ |
| 2209 | |
| 2210 | /* We don't support capture filters when reading from a capture file |
| 2211 | (the BPF compiler doesn't support all link-layer types that we |
| 2212 | support in capture files we read). */ |
| 2213 | if (global_capture_opts.default_options.cfilter) { |
| 2214 | cmdarg_err("Only read filters, not capture filters, " |
| 2215 | "can be specified when reading a capture file."); |
| 2216 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2217 | goto clean_exit; |
| 2218 | } |
| 2219 | if (global_capture_opts.multi_files_on) { |
| 2220 | cmdarg_err("Multiple capture files requested, but " |
| 2221 | "a capture isn't being done."); |
| 2222 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2223 | goto clean_exit; |
| 2224 | } |
| 2225 | if (global_capture_opts.has_file_duration) { |
| 2226 | cmdarg_err("Switching capture files after a time period was specified, but " |
| 2227 | "a capture isn't being done."); |
| 2228 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2229 | goto clean_exit; |
| 2230 | } |
| 2231 | if (global_capture_opts.has_file_interval) { |
| 2232 | cmdarg_err("Switching capture files after a time interval was specified, but " |
| 2233 | "a capture isn't being done."); |
| 2234 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2235 | goto clean_exit; |
| 2236 | } |
| 2237 | if (global_capture_opts.has_ring_num_files) { |
| 2238 | cmdarg_err("A ring buffer of capture files was specified, but " |
| 2239 | "a capture isn't being done."); |
| 2240 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2241 | goto clean_exit; |
| 2242 | } |
| 2243 | if (global_capture_opts.has_autostop_files) { |
| 2244 | cmdarg_err("A maximum number of capture files was specified, but " |
| 2245 | "a capture isn't being done."); |
| 2246 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2247 | goto clean_exit; |
| 2248 | } |
| 2249 | |
| 2250 | /* Note: TShark now allows the restriction of a _read_ file by packet count |
| 2251 | * and byte count as well as a write file. Other autostop options remain valid |
| 2252 | * only for a write file. |
| 2253 | */ |
| 2254 | if (global_capture_opts.has_autostop_duration) { |
| 2255 | cmdarg_err("A maximum capture time was specified, but " |
| 2256 | "a capture isn't being done."); |
| 2257 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2258 | goto clean_exit; |
| 2259 | } |
| 2260 | } else { |
| 2261 | /* |
| 2262 | * "-r" wasn't specified, so we're doing a live capture. |
| 2263 | */ |
| 2264 | bool_Bool use_pcapng = true1; |
| 2265 | |
| 2266 | if (perform_two_pass_analysis) { |
| 2267 | /* Two-pass analysis doesn't work with live capture since it requires us |
| 2268 | * to buffer packets until we've read all of them, but a live capture |
| 2269 | * has no useful/meaningful definition of "all" */ |
| 2270 | cmdarg_err("Live captures do not support two-pass analysis."); |
| 2271 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2272 | goto clean_exit; |
| 2273 | } |
| 2274 | |
| 2275 | if (global_capture_opts.saving_to_file) { |
| 2276 | /* They specified a "-w" flag, so we'll be saving to a capture file. */ |
| 2277 | |
| 2278 | /* When capturing, we only support writing pcap or pcapng format. */ |
| 2279 | if (out_file_type == wtap_pcapng_file_type_subtype()) { |
| 2280 | use_pcapng = true1; |
| 2281 | } else if (out_file_type == wtap_pcap_file_type_subtype()) { |
| 2282 | use_pcapng = false0; |
| 2283 | } else if (out_file_type == wtap_pcap_nsec_file_type_subtype()) { |
| 2284 | /* XXX - We request nanosecond time resolution regardless. |
| 2285 | * In the future wiretap might treat the two pcap subtypes |
| 2286 | * the same. |
| 2287 | */ |
| 2288 | use_pcapng = false0; |
| 2289 | } else { |
| 2290 | cmdarg_err("Live captures can only be saved in pcap or pcapng format."); |
| 2291 | capture_opts_list_file_types(); |
| 2292 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2293 | goto clean_exit; |
| 2294 | } |
| 2295 | if (capture_comments != NULL((void*)0) && !use_pcapng) { |
| 2296 | cmdarg_err("Capture comments can only be written to a pcapng file."); |
| 2297 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2298 | goto clean_exit; |
| 2299 | } |
| 2300 | if (global_capture_opts.multi_files_on) { |
| 2301 | /* Multiple-file mode doesn't work under certain conditions: |
| 2302 | a) it doesn't work if you're writing to the standard output; |
| 2303 | b) it doesn't work if you're writing to a pipe; |
| 2304 | */ |
| 2305 | if (strcmp(global_capture_opts.save_file, "-") == 0) { |
| 2306 | cmdarg_err("Multiple capture files requested, but " |
| 2307 | "the capture is being written to the standard output."); |
| 2308 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2309 | goto clean_exit; |
| 2310 | } |
| 2311 | if (global_capture_opts.output_to_pipe) { |
| 2312 | cmdarg_err("Multiple capture files requested, but " |
| 2313 | "the capture file is a pipe."); |
| 2314 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2315 | goto clean_exit; |
| 2316 | } |
| 2317 | if (!global_capture_opts.has_autostop_filesize && |
| 2318 | !global_capture_opts.has_file_duration && |
| 2319 | !global_capture_opts.has_file_interval && |
| 2320 | !global_capture_opts.has_file_packets) { |
| 2321 | cmdarg_err("Multiple capture files requested, but " |
| 2322 | "no maximum capture file size, duration, interval or packets were specified."); |
| 2323 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2324 | goto clean_exit; |
| 2325 | } |
| 2326 | } |
| 2327 | /* Currently, we don't support read or display filters when capturing |
| 2328 | and saving the packets. */ |
| 2329 | if (rfilter != NULL((void*)0)) { |
| 2330 | cmdarg_err("Read filters aren't supported when capturing and saving the captured packets."); |
| 2331 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2332 | goto clean_exit; |
| 2333 | } |
| 2334 | if (dfilter != NULL((void*)0)) { |
| 2335 | cmdarg_err("Display filters aren't supported when capturing and saving the captured packets."); |
| 2336 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2337 | goto clean_exit; |
| 2338 | } |
| 2339 | global_capture_opts.use_pcapng = use_pcapng; |
| 2340 | } else { |
| 2341 | /* They didn't specify a "-w" flag, so we won't be saving to a |
| 2342 | capture file. Check for options that only make sense if |
| 2343 | we're saving to a file. */ |
| 2344 | if (global_capture_opts.has_autostop_filesize) { |
| 2345 | cmdarg_err("Maximum capture file size specified, but " |
| 2346 | "capture isn't being saved to a file."); |
| 2347 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2348 | goto clean_exit; |
| 2349 | } |
| 2350 | if (global_capture_opts.multi_files_on) { |
| 2351 | cmdarg_err("Multiple capture files requested, but " |
| 2352 | "the capture isn't being saved to a file."); |
| 2353 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2354 | goto clean_exit; |
| 2355 | } |
| 2356 | if (capture_comments != NULL((void*)0)) { |
| 2357 | cmdarg_err("Capture comments were specified, but " |
| 2358 | "the capture isn't being saved to a file."); |
| 2359 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2360 | goto clean_exit; |
| 2361 | } |
| 2362 | } |
| 2363 | } |
| 2364 | } |
| 2365 | #endif |
| 2366 | |
| 2367 | /* |
| 2368 | * If capture comments were specified, -w also has to have been specified. |
| 2369 | */ |
| 2370 | if (capture_comments != NULL((void*)0)) { |
| 2371 | if (output_file_name) { |
| 2372 | /* They specified a "-w" flag, so we'll be saving to a capture file. |
| 2373 | * This is fine if they're writing in a format that supports |
| 2374 | * section block comments. |
| 2375 | */ |
| 2376 | if (wtap_file_type_subtype_supports_option(out_file_type, |
| 2377 | WTAP_BLOCK_SECTION, |
| 2378 | OPT_COMMENT1) == OPTION_NOT_SUPPORTED) { |
| 2379 | GArray *writable_type_subtypes; |
| 2380 | |
| 2381 | cmdarg_err("Capture comments can only be written to files of the following types:"); |
| 2382 | writable_type_subtypes = wtap_get_writable_file_types_subtypes(FT_SORT_BY_NAME); |
| 2383 | for (unsigned i = 0; i < writable_type_subtypes->len; i++) { |
| 2384 | int ft = g_array_index(writable_type_subtypes, int, i)(((int*) (void *) (writable_type_subtypes)->data) [(i)]); |
| 2385 | |
| 2386 | if (wtap_file_type_subtype_supports_option(ft, WTAP_BLOCK_SECTION, |
| 2387 | OPT_COMMENT1) != OPTION_NOT_SUPPORTED) |
| 2388 | cmdarg_err_cont(" %s - %s", wtap_file_type_subtype_name(ft), |
| 2389 | wtap_file_type_subtype_description(ft)); |
| 2390 | } |
| 2391 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2392 | goto clean_exit; |
| 2393 | } |
| 2394 | } |
| 2395 | else { |
| 2396 | cmdarg_err("Capture comments were specified, but you aren't writing a capture file."); |
| 2397 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2398 | goto clean_exit; |
| 2399 | } |
| 2400 | } |
| 2401 | |
| 2402 | err_msg = ws_init_sockets(); |
| 2403 | if (err_msg != NULL((void*)0)) |
| 2404 | { |
| 2405 | cmdarg_err("%s", err_msg); |
| 2406 | g_free(err_msg); |
| 2407 | cmdarg_err_cont("%s", please_report_bug()); |
| 2408 | exit_status = WS_EXIT_INIT_FAILED8; |
| 2409 | goto clean_exit; |
| 2410 | } |
| 2411 | |
| 2412 | /* Notify all registered modules that have had any of their preferences |
| 2413 | changed either from one of the preferences file or from the command |
| 2414 | line that their preferences have changed. */ |
| 2415 | prefs_apply_all(); |
| 2416 | |
| 2417 | /* We can also enable specified taps for export object */ |
| 2418 | start_exportobjects(); |
| 2419 | |
| 2420 | /* At this point MATE will have registered its field array so we can |
| 2421 | check if the fields specified by the user are all good. |
| 2422 | */ |
| 2423 | { |
| 2424 | GSList* it = NULL((void*)0); |
| 2425 | GSList *invalid_fields = output_fields_valid(output_fields); |
| 2426 | if (invalid_fields != NULL((void*)0)) { |
| 2427 | |
| 2428 | cmdarg_err("Some fields aren't valid:"); |
| 2429 | for (it=invalid_fields; it != NULL((void*)0); it = g_slist_next(it)((it) ? (((GSList *)(it))->next) : ((void*)0))) { |
| 2430 | cmdarg_err_cont("\t%s", (char *)it->data); |
| 2431 | } |
| 2432 | g_slist_free(invalid_fields); |
| 2433 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2434 | goto clean_exit; |
| 2435 | } |
| 2436 | } |
| 2437 | |
| 2438 | if (ex_opt_count("read_format") > 0) { |
| 2439 | char* name = ex_opt_get_next("read_format"); |
| 2440 | in_file_type = open_info_name_to_type(name); |
| 2441 | if (in_file_type == WTAP_TYPE_AUTO0) { |
| 2442 | cmdarg_err("\"%s\" isn't a valid read file format type", name? name : ""); |
| 2443 | g_free(name); |
| 2444 | list_read_capture_types(); |
| 2445 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2446 | goto clean_exit; |
| 2447 | } |
| 2448 | g_free(name); |
| 2449 | } |
| 2450 | |
| 2451 | if (global_dissect_options.time_format != TS_NOT_SET) |
| 2452 | timestamp_set_type(global_dissect_options.time_format); |
| 2453 | if (global_dissect_options.time_precision != TS_PREC_NOT_SET) |
| 2454 | timestamp_set_precision(global_dissect_options.time_precision); |
| 2455 | |
| 2456 | /* |
| 2457 | * Enabled and disabled protocols and heuristic dissectors as per |
| 2458 | * command-line options. |
| 2459 | */ |
| 2460 | if (!setup_enabled_and_disabled_protocols()) { |
| 2461 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2462 | goto clean_exit; |
| 2463 | } |
| 2464 | |
| 2465 | /* Build the column format array */ |
| 2466 | build_column_format_array(&cfile.cinfo, prefs_p->num_cols, true1); |
| 2467 | |
| 2468 | /* Everything is setup, dump glossaries now if that's what we're doing. |
| 2469 | * We want to do this after protocols and heuristic dissectors are |
| 2470 | * enabled and disabled. Doing it after building the column format |
| 2471 | * array might make it easier to add a report that describes the |
| 2472 | * current list of columns and how to add a new one (#17332). |
| 2473 | */ |
| 2474 | if (glossary != NULL((void*)0)) { |
| 2475 | exit_status = dump_glossary(glossary, elastic_mapping_filter); |
| 2476 | goto clean_exit; |
| 2477 | } |
| 2478 | |
| 2479 | #ifdef HAVE_LIBPCAP1 |
| 2480 | capture_opts_trim_snaplen(&global_capture_opts, MIN_PACKET_SIZE1); |
| 2481 | capture_opts_trim_ring_num_files(&global_capture_opts); |
| 2482 | #endif |
| 2483 | |
| 2484 | if (rfilter != NULL((void*)0)) { |
| 2485 | ws_debug("Compiling read filter: '%s'", rfilter)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 2485, __func__, "Compiling read filter: '%s'", rfilter); } } while (0); |
| 2486 | if (!compile_dfilter(rfilter, &rfcode)_compile_dfilter(rfilter, &rfcode, __func__)) { |
| 2487 | epan_cleanup(); |
| 2488 | extcap_cleanup(); |
| 2489 | |
| 2490 | #ifdef HAVE_LIBPCAP1 |
| 2491 | warn_about_capture_filter(rfilter); |
| 2492 | #endif |
| 2493 | |
| 2494 | exit_status = WS_EXIT_INVALID_INTERFACE2; |
| 2495 | goto clean_exit; |
| 2496 | } |
| 2497 | } |
| 2498 | cfile.rfcode = rfcode; |
| 2499 | |
| 2500 | if (dfilter != NULL((void*)0)) { |
| 2501 | ws_debug("Compiling display filter: '%s'", dfilter)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 2501, __func__, "Compiling display filter: '%s'", dfilter); } } while (0); |
| 2502 | if (!compile_dfilter(dfilter, &dfcode)_compile_dfilter(dfilter, &dfcode, __func__)) { |
| 2503 | epan_cleanup(); |
| 2504 | extcap_cleanup(); |
| 2505 | |
| 2506 | #ifdef HAVE_LIBPCAP1 |
| 2507 | warn_about_capture_filter(dfilter); |
| 2508 | #endif |
| 2509 | |
| 2510 | exit_status = WS_EXIT_INVALID_FILTER4; |
| 2511 | goto clean_exit; |
| 2512 | } |
| 2513 | } |
| 2514 | cfile.dfcode = dfcode; |
| 2515 | tap_load_main_filter(dfcode); |
| 2516 | |
| 2517 | if (print_packet_info) { |
| 2518 | /* If we're printing as text or PostScript, we have |
| 2519 | to create a print stream. */ |
| 2520 | if (output_action == WRITE_TEXT) { |
| 2521 | switch (print_format) { |
| 2522 | |
| 2523 | case PR_FMT_TEXT: |
| 2524 | print_stream = print_stream_text_stdio_new(stdoutstdout); |
| 2525 | break; |
| 2526 | |
| 2527 | case PR_FMT_PS: |
| 2528 | print_stream = print_stream_ps_stdio_new(stdoutstdout); |
| 2529 | break; |
| 2530 | |
| 2531 | default: |
| 2532 | ws_assert_not_reached()ws_log_fatal_full("Main", LOG_LEVEL_ERROR, "tshark.c", 2532, __func__ , "assertion \"not reached\" failed"); |
| 2533 | } |
| 2534 | } |
| 2535 | } |
| 2536 | |
| 2537 | /* PDU export requested. Take the ownership of the '-w' file, apply tap |
| 2538 | * filters and start tapping. */ |
| 2539 | if (pdu_export_arg) { |
| 2540 | const char *exp_pdu_tap_name = pdu_export_arg; |
| 2541 | const char *exp_pdu_filter = dfilter; /* may be NULL to disable filter */ |
| 2542 | char *exp_pdu_error; |
| 2543 | int exp_fd; |
| 2544 | char *comment; |
| 2545 | |
| 2546 | if (!cf_name) { |
| 2547 | cmdarg_err("PDUs export requires a capture file (specify with -r)."); |
| 2548 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2549 | goto clean_exit; |
| 2550 | } |
| 2551 | /* Take ownership of the '-w' output file. */ |
| 2552 | exp_pdu_filename = output_file_name; |
| 2553 | output_file_name = NULL((void*)0); |
| 2554 | #ifdef HAVE_LIBPCAP1 |
| 2555 | global_capture_opts.save_file = NULL((void*)0); |
| 2556 | #endif |
| 2557 | if (exp_pdu_filename == NULL((void*)0)) { |
| 2558 | cmdarg_err("PDUs export requires an output file (-w)."); |
| 2559 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2560 | goto clean_exit; |
| 2561 | } |
| 2562 | |
| 2563 | exp_pdu_error = exp_pdu_pre_open(exp_pdu_tap_name, exp_pdu_filter, |
| 2564 | &exp_pdu_tap_data); |
| 2565 | if (exp_pdu_error) { |
| 2566 | cmdarg_err("Cannot register tap: %s", exp_pdu_error); |
| 2567 | g_free(exp_pdu_error); |
| 2568 | list_export_pdu_taps(); |
| 2569 | exit_status = INVALID_TAP2; |
| 2570 | goto clean_exit; |
| 2571 | } |
| 2572 | |
| 2573 | if (strcmp(exp_pdu_filename, "-") == 0) { |
| 2574 | /* Write to the standard output. */ |
| 2575 | exp_fd = 1; |
| 2576 | } else { |
| 2577 | exp_fd = ws_openopen(exp_pdu_filename, O_WRONLY01 | O_CREAT0100 | O_TRUNC01000 | O_BINARY0, 0644); |
| 2578 | if (exp_fd == -1) { |
| 2579 | cmdarg_err("%s: %s", exp_pdu_filename, file_open_error_message(errno(*__errno_location ()), true1)); |
| 2580 | exit_status = WS_EXIT_INVALID_FILE3; |
| 2581 | goto clean_exit; |
| 2582 | } |
| 2583 | } |
| 2584 | |
| 2585 | /* Activate the export PDU tap */ |
| 2586 | /* Write to our output file with this comment (if the type supports it, |
| 2587 | * otherwise exp_pdu_open() will ignore the comment) */ |
| 2588 | comment = ws_strdup_printf("Dump of PDUs from %s", cf_name)wmem_strdup_printf(((void*)0), "Dump of PDUs from %s", cf_name ); |
| 2589 | exp_pdu_status = exp_pdu_open(&exp_pdu_tap_data, exp_pdu_filename, |
| 2590 | out_file_type, exp_fd, comment, |
| 2591 | &err, &err_info); |
| 2592 | g_free(comment); |
| 2593 | if (!exp_pdu_status) { |
| 2594 | report_cfile_dump_open_failure(exp_pdu_filename, err, err_info, |
| 2595 | out_file_type); |
| 2596 | exit_status = INVALID_EXPORT2; |
| 2597 | goto clean_exit; |
| 2598 | } |
| 2599 | } |
| 2600 | |
| 2601 | if (cf_name) { |
| 2602 | ws_debug("tshark: Opening capture file: %s", cf_name)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 2602, __func__, "tshark: Opening capture file: %s", cf_name ); } } while (0); |
| 2603 | /* |
| 2604 | * We're reading a capture file. |
| 2605 | */ |
| 2606 | if (cf_open(&cfile, cf_name, in_file_type, false0, &err) != CF_OK) { |
| 2607 | epan_cleanup(); |
| 2608 | extcap_cleanup(); |
| 2609 | exit_status = WS_EXIT_INVALID_FILE3; |
| 2610 | goto clean_exit; |
| 2611 | } |
| 2612 | |
| 2613 | /* Start statistics taps; we do so after successfully opening the |
| 2614 | capture file, so we know we have something to compute stats |
| 2615 | on, and after registering all dissectors, so that MATE will |
| 2616 | have registered its field array so we can have a tap filter |
| 2617 | with one of MATE's late-registered fields as part of the |
| 2618 | filter. */ |
| 2619 | if (!start_requested_stats()) { |
| 2620 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2621 | goto clean_exit; |
| 2622 | } |
| 2623 | |
| 2624 | /* Do we need to do dissection of packets? That depends on, among |
| 2625 | other things, what taps are listening, so determine that after |
| 2626 | starting the statistics taps. */ |
| 2627 | do_dissection = must_do_dissection(rfcode, dfcode, pdu_export_arg); |
| 2628 | ws_debug("tshark: do_dissection = %s", do_dissection ? "TRUE" : "FALSE")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 2628, __func__, "tshark: do_dissection = %s", do_dissection ? "TRUE" : "FALSE"); } } while (0); |
| 2629 | |
| 2630 | /* Process the packets in the file */ |
| 2631 | ws_debug("tshark: invoking process_cap_file() to process the packets")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 2631, __func__, "tshark: invoking process_cap_file() to process the packets" ); } } while (0); |
| 2632 | TRY{ except_t *volatile exc; volatile int except_state = 0; static const except_id_t catch_spec[] = { { 1, 0 } }; { struct except_stacknode except_sn; struct except_catch except_ch; except_setup_try(& except_sn, &except_ch, catch_spec, 1); if (_setjmp (except_ch .except_jmp)) *(&exc) = &except_ch.except_obj; else * (&exc) = 0; if(except_state & 1) except_state |= 2; except_state &= ~1; if (except_state == 0 && exc == 0) { |
| 2633 | status = process_cap_file(&cfile, output_file_name, out_file_type, out_file_name_res, |
| 2634 | #ifdef HAVE_LIBPCAP1 |
| 2635 | global_capture_opts.has_autostop_packets ? global_capture_opts.autostop_packets : 0, |
| 2636 | global_capture_opts.has_autostop_filesize ? global_capture_opts.autostop_filesize : 0, |
| 2637 | global_capture_opts.has_autostop_written_packets ? global_capture_opts.autostop_written_packets : 0, |
| 2638 | compression_type); |
| 2639 | #else |
| 2640 | max_packet_count, |
| 2641 | 0, |
| 2642 | 0, |
| 2643 | WS_FILE_UNCOMPRESSED); |
| 2644 | #endif |
| 2645 | } |
| 2646 | CATCH(OutOfMemoryError)if (except_state == 0 && exc != 0 && exc-> except_id.except_code == (8) && (except_state |= 1)) { |
| 2647 | fprintf(stderrstderr, |
| 2648 | "Out Of Memory.\n" |
| 2649 | "\n" |
| 2650 | "Sorry, but TShark has to terminate now.\n" |
| 2651 | "\n" |
| 2652 | "More information and workarounds can be found at\n" |
| 2653 | WS_WIKI_URL("KnownBugs/OutOfMemory")"https://wiki.wireshark.org" "/" "KnownBugs/OutOfMemory" "\n"); |
| 2654 | status = PROCESS_FILE_ERROR; |
| 2655 | } |
| 2656 | ENDTRYif(!(except_state&1) && exc != 0) except_rethrow( exc); except_free(except_ch.except_obj.except_dyndata); except_pop (); };}; |
| 2657 | |
| 2658 | switch (status) { |
| 2659 | |
| 2660 | case PROCESS_FILE_SUCCEEDED: |
| 2661 | /* Everything worked OK; draw the taps. */ |
| 2662 | draw_taps = true1; |
| 2663 | break; |
| 2664 | |
| 2665 | case PROCESS_FILE_NO_FILE_PROCESSED: |
| 2666 | /* We never got to try to read the file, so there are no tap |
| 2667 | results to dump. Exit with an error status. */ |
| 2668 | exit_status = 2; |
| 2669 | break; |
| 2670 | |
| 2671 | case PROCESS_FILE_ERROR: |
| 2672 | /* We still dump out the results of taps, etc., as we might have |
| 2673 | read some packets; however, we exit with an error status. */ |
| 2674 | draw_taps = true1; |
| 2675 | exit_status = 2; |
| 2676 | break; |
| 2677 | |
| 2678 | case PROCESS_FILE_INTERRUPTED: |
| 2679 | /* The user interrupted the read process; Don't dump out the |
| 2680 | result of taps, etc., and exit with an error status. */ |
| 2681 | exit_status = 2; |
| 2682 | break; |
| 2683 | } |
| 2684 | |
| 2685 | if (pdu_export_arg) { |
| 2686 | if (!exp_pdu_close(&exp_pdu_tap_data, &err, &err_info)) { |
| 2687 | report_cfile_close_failure(exp_pdu_filename, err, err_info); |
| 2688 | exit_status = 2; |
| 2689 | } |
| 2690 | g_free(pdu_export_arg); |
| 2691 | g_free(exp_pdu_filename); |
| 2692 | } |
| 2693 | } else { |
| 2694 | ws_debug("tshark: no capture file specified")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 2694, __func__, "tshark: no capture file specified"); } } while (0); |
| 2695 | /* No capture file specified, so we're supposed to do a live capture |
| 2696 | or get a list of link-layer types for a live capture device; |
| 2697 | do we have support for live captures? */ |
| 2698 | #ifdef HAVE_LIBPCAP1 |
| 2699 | #ifdef _WIN32 |
| 2700 | /* Warn the user if npf.sys isn't loaded. */ |
| 2701 | if (!npf_sys_is_running()) { |
| 2702 | fprintf(stderrstderr, "The NPF driver isn't running. You may have trouble " |
| 2703 | "capturing or\nlisting interfaces.\n"); |
| 2704 | } |
| 2705 | #endif /* _WIN32 */ |
| 2706 | |
| 2707 | /* if no interface was specified, pick a default */ |
| 2708 | exit_status = capture_opts_default_iface_if_necessary(&global_capture_opts, |
| 2709 | ((prefs_p->capture_device) && (*prefs_p->capture_device != '\0')) ? get_if_name(prefs_p->capture_device) : NULL((void*)0)); |
| 2710 | if (exit_status != 0) { |
| 2711 | goto clean_exit; |
| 2712 | } |
| 2713 | |
| 2714 | /* |
| 2715 | * If requested, list the link layer types and/or time stamp types |
| 2716 | * and exit. |
| 2717 | */ |
| 2718 | if (caps_queries) { |
| 2719 | unsigned i; |
| 2720 | |
| 2721 | /* Get the list of link-layer types for the capture devices. */ |
| 2722 | exit_status = EXIT_SUCCESS0; |
| 2723 | GList *if_cap_queries = NULL((void*)0); |
| 2724 | if_cap_query_t *if_cap_query; |
| 2725 | GHashTable *capability_hash; |
| 2726 | for (i = 0; i < global_capture_opts.ifaces->len; i++) { |
| 2727 | interface_options *interface_opts; |
| 2728 | interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i)(((interface_options*) (void *) (global_capture_opts.ifaces)-> data) [(i)]); |
| 2729 | if_cap_query = g_new(if_cap_query_t, 1)((if_cap_query_t *) g_malloc_n ((1), sizeof (if_cap_query_t)) ); |
| 2730 | if_cap_query->name = interface_opts->name; |
| 2731 | if_cap_query->monitor_mode = interface_opts->monitor_mode; |
| 2732 | if_cap_query->auth_username = NULL((void*)0); |
| 2733 | if_cap_query->auth_password = NULL((void*)0); |
| 2734 | #ifdef HAVE_PCAP_REMOTE |
| 2735 | if (interface_opts->auth_type == CAPTURE_AUTH_PWD) { |
| 2736 | if_cap_query->auth_username = interface_opts->auth_username; |
| 2737 | if_cap_query->auth_password = interface_opts->auth_password; |
| 2738 | } |
| 2739 | #endif |
| 2740 | if_cap_queries = g_list_prepend(if_cap_queries, if_cap_query); |
| 2741 | } |
| 2742 | if_cap_queries = g_list_reverse(if_cap_queries); |
| 2743 | capability_hash = capture_get_if_list_capabilities(global_capture_opts.app_name, if_cap_queries, &err_str, &err_str_secondary, NULL((void*)0)); |
| 2744 | g_list_free_full(if_cap_queries, g_free); |
| 2745 | for (i = 0; i < global_capture_opts.ifaces->len; i++) { |
| 2746 | interface_options *interface_opts; |
| 2747 | interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i)(((interface_options*) (void *) (global_capture_opts.ifaces)-> data) [(i)]); |
| 2748 | if_capabilities_t *caps; |
| 2749 | caps = g_hash_table_lookup(capability_hash, interface_opts->name); |
| 2750 | if (caps == NULL((void*)0)) { |
| 2751 | cmdarg_err("%s%s%s", err_str, err_str_secondary ? "\n" : "", err_str_secondary ? err_str_secondary : ""); |
| 2752 | g_free(err_str); |
| 2753 | g_free(err_str_secondary); |
| 2754 | exit_status = WS_EXIT_INVALID_CAPABILITY5; |
| 2755 | break; |
| 2756 | } |
| 2757 | exit_status = capture_opts_print_if_capabilities(caps, interface_opts, |
| 2758 | caps_queries); |
| 2759 | if (exit_status != EXIT_SUCCESS0) { |
| 2760 | break; |
| 2761 | } |
| 2762 | } |
| 2763 | g_hash_table_destroy(capability_hash); |
| 2764 | goto clean_exit; |
| 2765 | } |
| 2766 | |
| 2767 | /* |
| 2768 | * If the standard error isn't a terminal, don't print packet counts, |
| 2769 | * as they won't show up on the user's terminal and they'll get in |
| 2770 | * the way of error messages in the file (to which we assume the |
| 2771 | * standard error was redirected; if it's redirected to the null |
| 2772 | * device, there's no point in printing packet counts anyway). |
| 2773 | * |
| 2774 | * Otherwise, if we're printing packet information and the standard |
| 2775 | * output is a terminal (which we assume means the standard output and |
| 2776 | * error are going to the same terminal), don't print packet counts, |
| 2777 | * as they'll get in the way of the packet information. |
| 2778 | * |
| 2779 | * Otherwise, if the user specified -q, don't print packet counts. |
| 2780 | * |
| 2781 | * Otherwise, print packet counts. |
| 2782 | * |
| 2783 | * XXX - what if the user wants to do a live capture, doesn't want |
| 2784 | * to save it to a file, doesn't want information printed for each |
| 2785 | * packet, does want some "-z" statistic, and wants packet counts |
| 2786 | * so they know whether they're seeing any packets? -q will |
| 2787 | * suppress the information printed for each packet, but it'll |
| 2788 | * also suppress the packet counts. |
| 2789 | */ |
| 2790 | if (!ws_isattyisatty(ws_filenofileno(stderrstderr))) |
| 2791 | print_packet_counts = false0; |
| 2792 | else if (print_packet_info && ws_isattyisatty(ws_filenofileno(stdoutstdout))) |
| 2793 | print_packet_counts = false0; |
| 2794 | else if (quiet) |
| 2795 | print_packet_counts = false0; |
| 2796 | else |
| 2797 | print_packet_counts = true1; |
| 2798 | |
| 2799 | ws_debug("tshark: performing live capture")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 2799, __func__, "tshark: performing live capture"); } } while (0); |
| 2800 | |
| 2801 | /* Start statistics taps; we should only do so after the capture |
| 2802 | started successfully, so we know we have something to compute |
| 2803 | stats, but we currently don't check for that - see below. |
| 2804 | |
| 2805 | We do so after registering all dissectors, so that MATE will |
| 2806 | have registered its field array so we can have a tap filter |
| 2807 | with one of MATE's late-registered fields as part of the |
| 2808 | filter. */ |
| 2809 | if (!start_requested_stats()) { |
| 2810 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2811 | goto clean_exit; |
| 2812 | } |
| 2813 | |
| 2814 | /* Do we need to do dissection of packets? That depends on, among |
| 2815 | other things, what taps are listening, so determine that after |
| 2816 | starting the statistics taps. */ |
| 2817 | do_dissection = must_do_dissection(rfcode, dfcode, pdu_export_arg); |
| 2818 | ws_debug("tshark: do_dissection = %s", do_dissection ? "TRUE" : "FALSE")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 2818, __func__, "tshark: do_dissection = %s", do_dissection ? "TRUE" : "FALSE"); } } while (0); |
| 2819 | |
| 2820 | /* We're doing live capture; if the capture child is writing to a pipe, |
| 2821 | we can't do dissection, because that would mean two readers for |
| 2822 | the pipe, tshark and whatever else. */ |
| 2823 | if (do_dissection && global_capture_opts.output_to_pipe) { |
| 2824 | if (tap_listeners_require_dissection()) { |
| 2825 | cmdarg_err("Taps aren't supported when capturing and saving to a pipe."); |
| 2826 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2827 | goto clean_exit; |
| 2828 | } |
| 2829 | if (print_packet_info) { |
| 2830 | cmdarg_err("Printing dissected packets isn't supported when capturing and saving to a pipe."); |
| 2831 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2832 | goto clean_exit; |
| 2833 | } |
| 2834 | /* We already checked the next three reasons for supersets of |
| 2835 | capturing and saving to a pipe, but this doesn't hurt. */ |
| 2836 | if (pdu_export_arg) { |
| 2837 | cmdarg_err("PDUs export isn't supported when capturing and saving to a pipe."); |
| 2838 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2839 | goto clean_exit; |
| 2840 | } |
| 2841 | if (rfcode != NULL((void*)0)) { |
| 2842 | cmdarg_err("Read filters aren't supported when capturing and saving to a pipe."); |
| 2843 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2844 | goto clean_exit; |
| 2845 | } |
| 2846 | if (dfcode != NULL((void*)0)) { |
| 2847 | cmdarg_err("Display filters aren't supported when capturing and saving to a pipe."); |
| 2848 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2849 | goto clean_exit; |
| 2850 | } |
| 2851 | /* There's some other reason we're dissecting. */ |
| 2852 | cmdarg_err("Dissection isn't supported when capturing and saving to a pipe."); |
| 2853 | exit_status = WS_EXIT_INVALID_OPTION1; |
| 2854 | goto clean_exit; |
| 2855 | } |
| 2856 | |
| 2857 | /* Write a preamble if we're printing one. Do this after all checking |
| 2858 | * for invalid options, so we don't print just a preamble and quit. */ |
| 2859 | if (print_packet_info) { |
| 2860 | if (!write_preamble(&cfile)) { |
| 2861 | show_print_file_io_error(); |
| 2862 | exit_status = WS_EXIT_INVALID_FILE3; |
| 2863 | goto clean_exit; |
| 2864 | } |
| 2865 | } |
| 2866 | |
| 2867 | /* |
| 2868 | * XXX - this returns false if an error occurred, but it also |
| 2869 | * returns false if the capture stops because a time limit |
| 2870 | * was reached (and possibly other limits), so we can't assume |
| 2871 | * it means an error. |
| 2872 | * |
| 2873 | * The capture code is a bit twisty, so it doesn't appear to |
| 2874 | * be an easy fix. We just ignore the return value for now. |
| 2875 | * Instead, pass on the exit status from the capture child. |
| 2876 | */ |
| 2877 | capture(); |
| 2878 | exit_status = global_capture_session.fork_child_status; |
| 2879 | |
| 2880 | if (print_packet_info) { |
| 2881 | if (!write_finale()) { |
| 2882 | show_print_file_io_error(); |
| 2883 | } |
| 2884 | } |
| 2885 | |
| 2886 | /* |
| 2887 | * If we never got a capture file, don't draw the taps; we not only |
| 2888 | * didn't capture any packets, we never even did any capturing. |
| 2889 | */ |
| 2890 | if (cfile.filename != NULL((void*)0)) |
| 2891 | draw_taps = true1; |
| 2892 | #else |
| 2893 | /* No - complain. */ |
| 2894 | cmdarg_err("This version of TShark was not built with support for capturing packets."); |
| 2895 | exit_status = INVALID_CAPTURE2; |
| 2896 | goto clean_exit; |
| 2897 | #endif |
| 2898 | } |
| 2899 | |
| 2900 | if (cfile.provider.frames != NULL((void*)0)) { |
| 2901 | free_frame_data_sequence(cfile.provider.frames); |
| 2902 | cfile.provider.frames = NULL((void*)0); |
| 2903 | } |
| 2904 | |
| 2905 | if (draw_taps) |
| 2906 | draw_tap_listeners(true1); |
| 2907 | |
| 2908 | if (tls_session_keys_file) { |
| 2909 | size_t keylist_length = 0; |
| 2910 | unsigned num_keys = 0; |
| 2911 | char* keylist = NULL((void*)0); |
| 2912 | secrets_export_values ret = secrets_export("TLS", &keylist, &keylist_length, &num_keys); |
| 2913 | if ((ret == SECRETS_EXPORT_SUCCESS) && (keylist_length > 0)) |
| 2914 | write_file_binary_mode(tls_session_keys_file, keylist, keylist_length); |
| 2915 | g_free(keylist); |
| 2916 | } |
| 2917 | |
| 2918 | if (opt_print_timers) { |
| 2919 | if (cf_name == NULL((void*)0)) { |
| 2920 | /* We're doing a live capture. That isn't currently supported |
| 2921 | * with timers. */ |
| 2922 | ws_message("Ignoring option --print-timers because we are doing a live capture")do { if (1) { ws_log_full("Main", LOG_LEVEL_MESSAGE, ((void*) 0), -1, ((void*)0), "Ignoring option --print-timers because we are doing a live capture" ); } } while (0); |
| 2923 | } |
| 2924 | else { |
| 2925 | print_elapsed_json(cf_name, dfilter); |
| 2926 | } |
| 2927 | } |
| 2928 | |
| 2929 | /* Memory cleanup */ |
| 2930 | reset_tap_listeners(); |
| 2931 | funnel_dump_all_text_windows(); |
| 2932 | epan_free(cfile.epan); |
| 2933 | epan_cleanup(); |
| 2934 | extcap_cleanup(); |
| 2935 | |
| 2936 | output_fields_free(output_fields); |
| 2937 | output_fields = NULL((void*)0); |
| 2938 | |
| 2939 | clean_exit: |
| 2940 | cf_close(&cfile); |
| 2941 | g_free(cf_name); |
| 2942 | destroy_print_stream(print_stream); |
| 2943 | g_free(output_file_name); |
| 2944 | #ifdef HAVE_LIBPCAP1 |
| 2945 | capture_opts_cleanup(&global_capture_opts); |
| 2946 | if (cached_if_list) { |
| 2947 | free_interface_list(cached_if_list); |
| 2948 | } |
| 2949 | #endif |
| 2950 | col_cleanup(&cfile.cinfo); |
| 2951 | wtap_cleanup(); |
| 2952 | free_progdirs(); |
| 2953 | dfilter_free(dfcode); |
| 2954 | g_free(dfilter); |
| 2955 | return exit_status; |
| 2956 | } |
| 2957 | |
| 2958 | bool_Bool loop_running; |
| 2959 | uint32_t packet_count; |
| 2960 | |
| 2961 | static epan_t * |
| 2962 | tshark_epan_new(capture_file *cf) |
| 2963 | { |
| 2964 | static const struct packet_provider_funcs funcs = { |
| 2965 | cap_file_provider_get_frame_ts, |
| 2966 | cap_file_provider_get_start_ts, |
| 2967 | cap_file_provider_get_end_ts, |
| 2968 | cap_file_provider_get_interface_name, |
| 2969 | cap_file_provider_get_interface_description, |
| 2970 | NULL((void*)0), |
| 2971 | cap_file_provider_get_process_id, |
| 2972 | cap_file_provider_get_process_name, |
| 2973 | cap_file_provider_get_process_uuid, |
| 2974 | }; |
| 2975 | |
| 2976 | return epan_new(&cf->provider, &funcs); |
| 2977 | } |
| 2978 | |
| 2979 | #ifdef HAVE_LIBPCAP1 |
| 2980 | static bool_Bool |
| 2981 | capture(void) |
| 2982 | { |
| 2983 | GString *str; |
| 2984 | GMainContext *ctx; |
| 2985 | #ifndef _WIN32 |
| 2986 | struct sigaction action, oldaction; |
| 2987 | #endif |
| 2988 | |
| 2989 | /* Create new dissection section. */ |
| 2990 | epan_free(cfile.epan); |
| 2991 | cfile.epan = tshark_epan_new(&cfile); |
| 2992 | |
| 2993 | #ifdef _WIN32 |
| 2994 | /* Catch a CTRL+C event and, if we get it, clean up and exit. */ |
| 2995 | SetConsoleCtrlHandler(capture_cleanup, true1); |
| 2996 | #else /* _WIN32 */ |
| 2997 | /* Catch SIGINT and SIGTERM and, if we get either of them, |
| 2998 | clean up and exit. If SIGHUP isn't being ignored, catch |
| 2999 | it too and, if we get it, clean up and exit. |
| 3000 | |
| 3001 | We restart any read that was in progress, so that it doesn't |
| 3002 | disrupt reading from the sync pipe. The signal handler tells |
| 3003 | the capture child to finish; it will report that it finished, |
| 3004 | or will exit abnormally, so we'll stop reading from the sync |
| 3005 | pipe, pick up the exit status, and quit. */ |
| 3006 | memset(&action, 0, sizeof(action)); |
| 3007 | action.sa_handler__sigaction_handler.sa_handler = capture_cleanup; |
| 3008 | action.sa_flags = SA_RESTART0x10000000; |
| 3009 | sigemptyset(&action.sa_mask); |
| 3010 | sigaction(SIGTERM15, &action, NULL((void*)0)); |
| 3011 | sigaction(SIGINT2, &action, NULL((void*)0)); |
| 3012 | sigaction(SIGHUP1, NULL((void*)0), &oldaction); |
| 3013 | if (oldaction.sa_handler__sigaction_handler.sa_handler == SIG_DFL((__sighandler_t) 0)) |
| 3014 | sigaction(SIGHUP1, &action, NULL((void*)0)); |
| 3015 | |
| 3016 | #ifdef SIGINFO |
| 3017 | /* Catch SIGINFO and, if we get it and we're capturing to a file in |
| 3018 | quiet mode, report the number of packets we've captured. |
| 3019 | |
| 3020 | Again, restart any read that was in progress, so that it doesn't |
| 3021 | disrupt reading from the sync pipe. */ |
| 3022 | action.sa_handler__sigaction_handler.sa_handler = report_counts_siginfo; |
| 3023 | action.sa_flags = SA_RESTART0x10000000; |
| 3024 | sigemptyset(&action.sa_mask); |
| 3025 | sigaction(SIGINFO, &action, NULL((void*)0)); |
| 3026 | #endif /* SIGINFO */ |
| 3027 | #endif /* _WIN32 */ |
| 3028 | |
| 3029 | global_capture_session.state = CAPTURE_PREPARING; |
| 3030 | |
| 3031 | /* Let the user know which interfaces were chosen. */ |
| 3032 | str = get_iface_list_string(&global_capture_opts, IFLIST_QUOTE_IF_DESCRIPTION0x00000001); |
| 3033 | if (really_quiet == false0) |
| 3034 | fprintf(stderrstderr, "Capturing on %s\n", str->str); |
| 3035 | fflush(stderrstderr); |
| 3036 | g_string_free(str, TRUE)(__builtin_constant_p ((!(0))) ? (((!(0))) ? (g_string_free) ( (str), ((!(0)))) : g_string_free_and_steal (str)) : (g_string_free ) ((str), ((!(0))))); |
| 3037 | |
| 3038 | if (!sync_pipe_start(&global_capture_opts, capture_comments, |
| 3039 | &global_capture_session, &global_info_data, NULL((void*)0))) |
| 3040 | return false0; |
| 3041 | |
| 3042 | /* |
| 3043 | * Force synchronous resolution of IP addresses; we're doing only |
| 3044 | * one pass, so we can't do it in the background and fix up past |
| 3045 | * dissections. |
| 3046 | */ |
| 3047 | set_resolution_synchrony(true1); |
| 3048 | |
| 3049 | /* the actual capture loop */ |
| 3050 | ctx = g_main_context_default(); |
| 3051 | loop_running = true1; |
| 3052 | |
| 3053 | TRY{ except_t *volatile exc; volatile int except_state = 0; static const except_id_t catch_spec[] = { { 1, 0 } }; { struct except_stacknode except_sn; struct except_catch except_ch; except_setup_try(& except_sn, &except_ch, catch_spec, 1); if (_setjmp (except_ch .except_jmp)) *(&exc) = &except_ch.except_obj; else * (&exc) = 0; if(except_state & 1) except_state |= 2; except_state &= ~1; if (except_state == 0 && exc == 0) |
| 3054 | { |
| 3055 | while (loop_running) |
| 3056 | { |
| 3057 | g_main_context_iteration(ctx, true1); |
| 3058 | } |
| 3059 | } |
| 3060 | CATCH(OutOfMemoryError)if (except_state == 0 && exc != 0 && exc-> except_id.except_code == (8) && (except_state |= 1)) { |
| 3061 | fprintf(stderrstderr, |
| 3062 | "Out Of Memory.\n" |
| 3063 | "\n" |
| 3064 | "Sorry, but TShark has to terminate now.\n" |
| 3065 | "\n" |
| 3066 | "More information and workarounds can be found at\n" |
| 3067 | WS_WIKI_URL("KnownBugs/OutOfMemory")"https://wiki.wireshark.org" "/" "KnownBugs/OutOfMemory" "\n"); |
| 3068 | abort(); |
| 3069 | } |
| 3070 | ENDTRYif(!(except_state&1) && exc != 0) except_rethrow( exc); except_free(except_ch.except_obj.except_dyndata); except_pop (); };}; |
| 3071 | return true1; |
| 3072 | } |
| 3073 | |
| 3074 | /* capture child detected an error */ |
| 3075 | static void |
| 3076 | capture_input_error(capture_session *cap_session _U___attribute__((unused)), char *error_msg, char *secondary_error_msg) |
| 3077 | { |
| 3078 | /* The primary message might be an empty string, e.g. when the error was |
| 3079 | * from extcap. (The extcap stderr is gathered when the session closes |
| 3080 | * and printed in capture_input_closed below.) */ |
| 3081 | if (*error_msg != '\0') { |
| 3082 | cmdarg_err("%s", error_msg); |
| 3083 | if (secondary_error_msg != NULL((void*)0) && *secondary_error_msg != '\0') { |
| 3084 | /* We have both primary and secondary messages. */ |
| 3085 | cmdarg_err_cont("%s", secondary_error_msg); |
| 3086 | } |
| 3087 | } |
| 3088 | } |
| 3089 | |
| 3090 | |
| 3091 | /* capture child detected an capture filter related error */ |
| 3092 | static void |
| 3093 | capture_input_cfilter_error(capture_session *cap_session, unsigned i, const char *error_message) |
| 3094 | { |
| 3095 | capture_options *capture_opts = cap_session->capture_opts; |
| 3096 | dfilter_t *rfcode = NULL((void*)0); |
| 3097 | interface_options *interface_opts; |
| 3098 | |
| 3099 | ws_assert(i < capture_opts->ifaces->len)do { if ((1) && !(i < capture_opts->ifaces-> len)) ws_log_fatal_full("Main", LOG_LEVEL_ERROR, "tshark.c", 3099 , __func__, "assertion failed: %s", "i < capture_opts->ifaces->len" ); } while (0); |
| 3100 | interface_opts = &g_array_index(capture_opts->ifaces, interface_options, i)(((interface_options*) (void *) (capture_opts->ifaces)-> data) [(i)]); |
| 3101 | |
| 3102 | if (dfilter_compile(interface_opts->cfilter, &rfcode, NULL)dfilter_compile_full(interface_opts->cfilter, &rfcode, ((void*)0), (1U << 1)|(1U << 2), __func__) && rfcode != NULL((void*)0)) { |
| 3103 | cmdarg_err( |
| 3104 | "Invalid capture filter \"%s\" for interface '%s'.\n" |
| 3105 | "\n" |
| 3106 | "That string looks like a valid display filter; however, it isn't a valid\n" |
| 3107 | "capture filter (%s).\n" |
| 3108 | "\n" |
| 3109 | "Note that display filters and capture filters don't have the same syntax,\n" |
| 3110 | "so you can't use most display filter expressions as capture filters.\n" |
| 3111 | "\n" |
| 3112 | "See the User's Guide for a description of the capture filter syntax.", |
| 3113 | interface_opts->cfilter, interface_opts->descr, error_message); |
| 3114 | dfilter_free(rfcode); |
| 3115 | } else { |
| 3116 | cmdarg_err( |
| 3117 | "Invalid capture filter \"%s\" for interface '%s'.\n" |
| 3118 | "\n" |
| 3119 | "That string isn't a valid capture filter (%s).\n" |
| 3120 | "See the User's Guide for a description of the capture filter syntax.", |
| 3121 | interface_opts->cfilter, interface_opts->descr, error_message); |
| 3122 | } |
| 3123 | } |
| 3124 | |
| 3125 | |
| 3126 | /* capture child tells us we have a new (or the first) capture file */ |
| 3127 | static bool_Bool |
| 3128 | capture_input_new_file(capture_session *cap_session, char *new_file) |
| 3129 | { |
| 3130 | capture_options *capture_opts = cap_session->capture_opts; |
| 3131 | capture_file *cf = cap_session->cf; |
| 3132 | bool_Bool is_tempfile; |
| 3133 | int err; |
| 3134 | |
| 3135 | if (really_quiet == false0) { |
| 3136 | if (cap_session->state == CAPTURE_PREPARING) { |
| 3137 | ws_info("Capture started.")do { if (1) { ws_log_full("Main", LOG_LEVEL_INFO, ((void*)0), -1, ((void*)0), "Capture started."); } } while (0); |
| 3138 | } |
| 3139 | ws_info("File: \"%s\"", new_file)do { if (1) { ws_log_full("Main", LOG_LEVEL_INFO, ((void*)0), -1, ((void*)0), "File: \"%s\"", new_file); } } while (0); |
| 3140 | } |
| 3141 | |
| 3142 | ws_assert(cap_session->state == CAPTURE_PREPARING || cap_session->state == CAPTURE_RUNNING)do { if ((1) && !(cap_session->state == CAPTURE_PREPARING || cap_session->state == CAPTURE_RUNNING)) ws_log_fatal_full ("Main", LOG_LEVEL_ERROR, "tshark.c", 3142, __func__, "assertion failed: %s" , "cap_session->state == CAPTURE_PREPARING || cap_session->state == CAPTURE_RUNNING" ); } while (0); |
| 3143 | |
| 3144 | /* free the old filename */ |
| 3145 | if (capture_opts->save_file != NULL((void*)0)) { |
| 3146 | |
| 3147 | /* we start a new capture file, close the old one (if we had one before) */ |
| 3148 | if (cf->state != FILE_CLOSED) { |
| 3149 | cf_close(cf); |
| 3150 | } |
| 3151 | |
| 3152 | g_free(capture_opts->save_file); |
| 3153 | is_tempfile = false0; |
| 3154 | |
| 3155 | epan_free(cf->epan); |
| 3156 | cf->epan = tshark_epan_new(cf); |
| 3157 | } else { |
| 3158 | /* we didn't had a save_file before, must be a tempfile */ |
| 3159 | is_tempfile = true1; |
| 3160 | } |
| 3161 | |
| 3162 | /* save the new filename */ |
| 3163 | capture_opts->save_file = g_strdup(new_file)g_strdup_inline (new_file); |
| 3164 | |
| 3165 | /* if we are in real-time mode, open the new file now */ |
| 3166 | if (do_dissection) { |
| 3167 | /* this is probably unnecessary, but better safe than sorry */ |
| 3168 | cap_session->cf->open_type = WTAP_TYPE_AUTO0; |
| 3169 | /* Attempt to open the capture file and set up to read from it. */ |
| 3170 | switch(cf_open(cap_session->cf, capture_opts->save_file, WTAP_TYPE_AUTO0, is_tempfile, &err)) { |
| 3171 | case CF_OK: |
| 3172 | break; |
| 3173 | case CF_ERROR: |
| 3174 | /* Don't unlink (delete) the save file - leave it around, |
| 3175 | for debugging purposes. */ |
| 3176 | g_free(capture_opts->save_file); |
| 3177 | capture_opts->save_file = NULL((void*)0); |
| 3178 | return false0; |
| 3179 | } |
| 3180 | } else if (quiet && is_tempfile) { |
| 3181 | cf->state = FILE_READ_ABORTED; |
| 3182 | cf->filename = g_strdup(new_file)g_strdup_inline (new_file); |
| 3183 | cf->is_tempfile = is_tempfile; |
| 3184 | } |
| 3185 | |
| 3186 | cap_session->state = CAPTURE_RUNNING; |
| 3187 | |
| 3188 | return true1; |
| 3189 | } |
| 3190 | |
| 3191 | |
| 3192 | /* capture child tells us we have new packets to read */ |
| 3193 | static void |
| 3194 | capture_input_new_packets(capture_session *cap_session, int to_read) |
| 3195 | { |
| 3196 | bool_Bool ret; |
| 3197 | int err; |
| 3198 | char *err_info; |
| 3199 | int64_t data_offset; |
| 3200 | capture_file *cf = cap_session->cf; |
| 3201 | bool_Bool filtering_tap_listeners; |
| 3202 | unsigned tap_flags; |
| 3203 | |
| 3204 | #ifdef SIGINFO |
| 3205 | /* |
| 3206 | * Prevent a SIGINFO handler from writing to the standard error while |
| 3207 | * we're doing so or writing to the standard output; instead, have it |
| 3208 | * just set a flag telling us to print that information when we're done. |
| 3209 | */ |
| 3210 | infodelay = true1; |
| 3211 | #endif /* SIGINFO */ |
| 3212 | |
| 3213 | /* Do we have any tap listeners with filters? */ |
| 3214 | filtering_tap_listeners = have_filtering_tap_listeners(); |
| 3215 | |
| 3216 | /* Get the union of the flags for all tap listeners. */ |
| 3217 | tap_flags = union_of_tap_listener_flags(); |
| 3218 | |
| 3219 | if (do_dissection) { |
| 3220 | bool_Bool create_proto_tree; |
| 3221 | epan_dissect_t *edt; |
| 3222 | wtap_rec rec; |
| 3223 | |
| 3224 | /* |
| 3225 | * Determine whether we need to create a protocol tree. |
| 3226 | * We do if: |
| 3227 | * |
| 3228 | * we're going to apply a read filter; |
| 3229 | * |
| 3230 | * we're going to apply a display filter; |
| 3231 | * |
| 3232 | * we're going to print the protocol tree; |
| 3233 | * |
| 3234 | * one of the tap listeners is going to apply a filter; |
| 3235 | * |
| 3236 | * one of the tap listeners requires a protocol tree; |
| 3237 | * |
| 3238 | * a postdissector wants field values or protocols |
| 3239 | * on the first pass; |
| 3240 | * |
| 3241 | * we have custom columns (which require field values, which |
| 3242 | * currently requires that we build a protocol tree). |
| 3243 | */ |
| 3244 | create_proto_tree = |
| 3245 | (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners || |
| 3246 | (tap_flags & TL_REQUIRES_PROTO_TREE0x00000001) || postdissectors_want_hfids() || |
| 3247 | have_custom_cols(&cf->cinfo) || dissect_color); |
| 3248 | |
| 3249 | /* The protocol tree will be "visible", i.e., nothing faked, only if |
| 3250 | we're printing packet details, which is true if we're printing stuff |
| 3251 | ("print_packet_info" is true) and we're in verbose mode |
| 3252 | ("packet_details" is true). But if we specified certain fields with |
| 3253 | "-e", we'll prime those directly later. */ |
| 3254 | bool_Bool visible = print_packet_info && print_details && output_fields_num_fields(output_fields) == 0; |
| 3255 | edt = epan_dissect_new(cf->epan, create_proto_tree, visible); |
| 3256 | |
| 3257 | wtap_rec_init(&rec, DEFAULT_INIT_BUFFER_SIZE_2048(2 * 1024)); |
| 3258 | |
| 3259 | while (to_read-- && cf->provider.wth) { |
| 3260 | wtap_cleareof(cf->provider.wth); |
| 3261 | ret = wtap_read(cf->provider.wth, &rec, &err, &err_info, &data_offset); |
| 3262 | reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details); |
| 3263 | if (ret == false0) { |
| 3264 | /* Read from file failed; tell the capture child to stop. |
| 3265 | XXX - report this error? */ |
| 3266 | sync_pipe_stop(cap_session); |
| 3267 | wtap_close(cf->provider.wth); |
| 3268 | cf->provider.wth = NULL((void*)0); |
| 3269 | } else { |
| 3270 | /* |
| 3271 | * The packet was successfully read; process it. |
| 3272 | */ |
| 3273 | switch (process_packet_single_pass(cf, edt, data_offset, &rec, |
| 3274 | tap_flags)) { |
| 3275 | |
| 3276 | case PROCESS_PACKET_PASSED: |
| 3277 | /* Either there's no read filtering or this packet |
| 3278 | passed the filter, and, if we were supposed to |
| 3279 | print dissection information, we did so successfully. */ |
| 3280 | packet_count++; |
| 3281 | ret = true1; |
Value stored to 'ret' is never read | |
| 3282 | break; |
| 3283 | |
| 3284 | case PROCESS_PACKET_DIDNT_PASS: |
| 3285 | /* There is read filtering and this packet didn't pass |
| 3286 | the filter. */ |
| 3287 | ret = false0; |
| 3288 | break; |
| 3289 | |
| 3290 | case PROCESS_PACKET_PRINT_ERROR: |
| 3291 | /* Either here's no read filtering or this packet passed |
| 3292 | the read filter, and we tried to print dissection |
| 3293 | informaion, but that failed. We've already reported |
| 3294 | the error, unless it was EPIPE, in which case we just |
| 3295 | silently quit; tell the capture child to stop. */ |
| 3296 | sync_pipe_stop(cap_session); |
| 3297 | wtap_close(cf->provider.wth); |
| 3298 | cf->provider.wth = NULL((void*)0); |
| 3299 | } |
| 3300 | } |
| 3301 | wtap_rec_reset(&rec); |
| 3302 | } |
| 3303 | |
| 3304 | epan_dissect_free(edt); |
| 3305 | |
| 3306 | wtap_rec_cleanup(&rec); |
| 3307 | |
| 3308 | } else { |
| 3309 | /* |
| 3310 | * Dumpcap's doing all the work; we're not doing any dissection. |
| 3311 | * Count all the packets it wrote. |
| 3312 | */ |
| 3313 | packet_count += to_read; |
| 3314 | } |
| 3315 | |
| 3316 | if (print_packet_counts) { |
| 3317 | /* We're printing packet counts. */ |
| 3318 | if (packet_count != 0) { |
| 3319 | fprintf(stderrstderr, "\r%u ", packet_count); |
| 3320 | /* stderr could be line buffered */ |
| 3321 | fflush(stderrstderr); |
| 3322 | } |
| 3323 | } |
| 3324 | |
| 3325 | #ifdef SIGINFO |
| 3326 | /* |
| 3327 | * Allow SIGINFO handlers to write. |
| 3328 | */ |
| 3329 | infodelay = false0; |
| 3330 | |
| 3331 | /* |
| 3332 | * If a SIGINFO handler asked us to write out capture counts, do so. |
| 3333 | */ |
| 3334 | if (infoprint) |
| 3335 | report_counts(); |
| 3336 | #endif /* SIGINFO */ |
| 3337 | } |
| 3338 | |
| 3339 | static void |
| 3340 | report_counts(void) |
| 3341 | { |
| 3342 | if ((print_packet_counts == false0) && (really_quiet == false0)) { |
| 3343 | /* Report the count only if we aren't printing a packet count |
| 3344 | as packets arrive. */ |
| 3345 | fprintf(stderrstderr, "%u packet%s captured\n", packet_count, |
| 3346 | plurality(packet_count, "", "s")((packet_count) == 1 ? ("") : ("s"))); |
| 3347 | } |
| 3348 | #ifdef SIGINFO |
| 3349 | infoprint = false0; /* we just reported it */ |
| 3350 | #endif /* SIGINFO */ |
| 3351 | } |
| 3352 | |
| 3353 | #ifdef SIGINFO |
| 3354 | static void |
| 3355 | report_counts_siginfo(int signum _U___attribute__((unused))) |
| 3356 | { |
| 3357 | int sav_errno = errno(*__errno_location ()); |
| 3358 | /* If we've been told to delay printing, just set a flag asking |
| 3359 | that we print counts (if we're supposed to), otherwise print |
| 3360 | the count of packets captured (if we're supposed to). */ |
| 3361 | if (infodelay) |
| 3362 | infoprint = true1; |
| 3363 | else |
| 3364 | report_counts(); |
| 3365 | errno(*__errno_location ()) = sav_errno; |
| 3366 | } |
| 3367 | #endif /* SIGINFO */ |
| 3368 | |
| 3369 | |
| 3370 | /* capture child detected any packet drops? */ |
| 3371 | static void |
| 3372 | capture_input_drops(capture_session *cap_session _U___attribute__((unused)), uint32_t dropped, const char* interface_name) |
| 3373 | { |
| 3374 | if (print_packet_counts) { |
| 3375 | /* We're printing packet counts to stderr. |
| 3376 | Send a newline so that we move to the line after the packet count. */ |
| 3377 | fprintf(stderrstderr, "\n"); |
| 3378 | } |
| 3379 | |
| 3380 | if (dropped != 0) { |
| 3381 | /* We're printing packet counts to stderr. |
| 3382 | Send a newline so that we move to the line after the packet count. */ |
| 3383 | if (interface_name != NULL((void*)0)) { |
| 3384 | fprintf(stderrstderr, "%u packet%s dropped from %s\n", dropped, plurality(dropped, "", "s")((dropped) == 1 ? ("") : ("s")), interface_name); |
| 3385 | } else { |
| 3386 | fprintf(stderrstderr, "%u packet%s dropped\n", dropped, plurality(dropped, "", "s")((dropped) == 1 ? ("") : ("s"))); |
| 3387 | } |
| 3388 | } |
| 3389 | } |
| 3390 | |
| 3391 | |
| 3392 | /* |
| 3393 | * Capture child closed its side of the pipe, report any error and |
| 3394 | * do the required cleanup. |
| 3395 | */ |
| 3396 | static void |
| 3397 | capture_input_closed(capture_session *cap_session _U___attribute__((unused)), char *msg) |
| 3398 | { |
| 3399 | if (msg != NULL((void*)0) && *msg != '\0') |
| 3400 | fprintf(stderrstderr, "tshark: %s\n", msg); |
| 3401 | |
| 3402 | report_counts(); |
| 3403 | |
| 3404 | loop_running = false0; |
| 3405 | } |
| 3406 | |
| 3407 | #ifdef _WIN32 |
| 3408 | static BOOL WINAPI |
| 3409 | capture_cleanup(DWORD ctrltype _U___attribute__((unused))) |
| 3410 | { |
| 3411 | /* CTRL_C_EVENT is sort of like SIGINT, CTRL_BREAK_EVENT is unique to |
| 3412 | Windows, CTRL_CLOSE_EVENT is sort of like SIGHUP, CTRL_LOGOFF_EVENT |
| 3413 | is also sort of like SIGHUP, and CTRL_SHUTDOWN_EVENT is sort of |
| 3414 | like SIGTERM at least when the machine's shutting down. |
| 3415 | |
| 3416 | For now, we handle them all as indications that we should clean up |
| 3417 | and quit, just as we handle SIGINT, SIGHUP, and SIGTERM in that |
| 3418 | way on UNIX. |
| 3419 | |
| 3420 | We must return true so that no other handler - such as one that would |
| 3421 | terminate the process - gets called. |
| 3422 | |
| 3423 | XXX - for some reason, typing ^C to TShark, if you run this in |
| 3424 | a Cygwin console window in at least some versions of Cygwin, |
| 3425 | causes TShark to terminate immediately; this routine gets |
| 3426 | called, but the main loop doesn't get a chance to run and |
| 3427 | exit cleanly, at least if this is compiled with Microsoft Visual |
| 3428 | C++ (i.e., it's a property of the Cygwin console window or Bash; |
| 3429 | it happens if TShark is not built with Cygwin - for all I know, |
| 3430 | building it with Cygwin may make the problem go away). */ |
| 3431 | |
| 3432 | /* tell the capture child to stop */ |
| 3433 | sync_pipe_stop(&global_capture_session); |
| 3434 | |
| 3435 | /* don't stop our own loop already here, otherwise status messages and |
| 3436 | * cleanup wouldn't be done properly. The child will indicate the stop of |
| 3437 | * everything by calling capture_input_closed() later */ |
| 3438 | |
| 3439 | return true1; |
| 3440 | } |
| 3441 | #else |
| 3442 | static void |
| 3443 | capture_cleanup(int signum _U___attribute__((unused))) |
| 3444 | { |
| 3445 | /* tell the capture child to stop */ |
| 3446 | sync_pipe_stop(&global_capture_session); |
| 3447 | |
| 3448 | /* don't stop our own loop already here, otherwise status messages and |
| 3449 | * cleanup wouldn't be done properly. The child will indicate the stop of |
| 3450 | * everything by calling capture_input_closed() later */ |
| 3451 | } |
| 3452 | #endif /* _WIN32 */ |
| 3453 | #endif /* HAVE_LIBPCAP */ |
| 3454 | |
| 3455 | static bool_Bool |
| 3456 | process_packet_first_pass(capture_file *cf, epan_dissect_t *edt, |
| 3457 | int64_t offset, wtap_rec *rec) |
| 3458 | { |
| 3459 | frame_data fdlocal; |
| 3460 | uint32_t framenum; |
| 3461 | bool_Bool passed; |
| 3462 | int64_t elapsed_start; |
| 3463 | |
| 3464 | /* The frame number of this packet is one more than the count of |
| 3465 | frames in this packet. */ |
| 3466 | framenum = cf->count + 1; |
| 3467 | |
| 3468 | /* If we're not running a display filter and we're not printing any |
| 3469 | packet information, we don't need to do a dissection. This means |
| 3470 | that all packets can be marked as 'passed'. */ |
| 3471 | passed = true1; |
| 3472 | |
| 3473 | frame_data_init(&fdlocal, framenum, rec, offset, cum_bytes); |
| 3474 | |
| 3475 | /* If we're going to run a read filter or a display filter, set up to |
| 3476 | do a dissection and do so. (This is the first pass of two passes |
| 3477 | over the packets, so we will not be printing any information |
| 3478 | from the dissection or running taps on the packet; if we're doing |
| 3479 | any of that, we'll do it in the second pass.) */ |
| 3480 | if (edt) { |
| 3481 | if (gbl_resolv_flags.network_name || gbl_resolv_flags.maxmind_geoip) { |
| 3482 | /* If we're doing async lookups, send any that are queued and |
| 3483 | * retrieve results. |
| 3484 | * |
| 3485 | * Ideally we'd force any lookups that need to happen on the second pass |
| 3486 | * to be sent asynchronously on this pass so the results would be ready. |
| 3487 | * That will happen if they're involved in a filter (because we prime the |
| 3488 | * tree below), but not currently for taps, if we're printing packet |
| 3489 | * summaries or details, etc. |
| 3490 | * |
| 3491 | * XXX - If we're running a read filter that depends on a resolved |
| 3492 | * name, we should be doing synchronous lookups in that case. Also |
| 3493 | * marking the dependent frames below might not work with a display |
| 3494 | * filter that depends on a resolved name. |
| 3495 | */ |
| 3496 | host_name_lookup_process(); |
| 3497 | } |
| 3498 | |
| 3499 | column_info *cinfo = NULL((void*)0); |
| 3500 | |
| 3501 | /* If we're running a read filter, prime the epan_dissect_t with that |
| 3502 | filter. */ |
| 3503 | if (cf->rfcode) |
| 3504 | epan_dissect_prime_with_dfilter(edt, cf->rfcode); |
| 3505 | |
| 3506 | if (cf->dfcode) |
| 3507 | epan_dissect_prime_with_dfilter(edt, cf->dfcode); |
| 3508 | |
| 3509 | frame_data_set_before_dissect(&fdlocal, &cf->elapsed_time, |
| 3510 | &cf->provider.ref, cf->provider.prev_dis); |
| 3511 | if (cf->provider.ref == &fdlocal) { |
| 3512 | ref_frame = fdlocal; |
| 3513 | cf->provider.ref = &ref_frame; |
| 3514 | } |
| 3515 | |
| 3516 | /* If we're applying a filter that needs the columns, construct them. */ |
| 3517 | if (dfilter_requires_columns(cf->rfcode) || dfilter_requires_columns(cf->dfcode)) { |
| 3518 | cinfo = &cf->cinfo; |
| 3519 | } |
| 3520 | |
| 3521 | elapsed_start = g_get_monotonic_time(); |
| 3522 | epan_dissect_run(edt, cf->cd_t, rec, &fdlocal, cinfo); |
| 3523 | tshark_elapsed.first_pass.dissect += g_get_monotonic_time() - elapsed_start; |
| 3524 | |
| 3525 | /* Run the read filter if we have one. */ |
| 3526 | if (cf->rfcode) { |
| 3527 | elapsed_start = g_get_monotonic_time(); |
| 3528 | passed = dfilter_apply_edt(cf->rfcode, edt); |
| 3529 | tshark_elapsed.first_pass.dfilter_read += g_get_monotonic_time() - elapsed_start; |
| 3530 | } |
| 3531 | } |
| 3532 | |
| 3533 | if (passed) { |
| 3534 | frame_data_set_after_dissect(&fdlocal, &cum_bytes); |
| 3535 | cf->provider.prev_cap = cf->provider.prev_dis = frame_data_sequence_add(cf->provider.frames, &fdlocal); |
| 3536 | |
| 3537 | /* If we're not doing dissection then there won't be any dependent frames. |
| 3538 | * More importantly, edt.pi.fd.dependent_frames won't be initialized because |
| 3539 | * epan hasn't been initialized. |
| 3540 | * if we *are* doing dissection, then mark the dependent frames, but only |
| 3541 | * if a display filter was given and it matches this packet. |
| 3542 | */ |
| 3543 | if (edt && cf->dfcode) { |
| 3544 | elapsed_start = g_get_monotonic_time(); |
| 3545 | if (dfilter_apply_edt(cf->dfcode, edt) && edt->pi.fd->dependent_frames) { |
| 3546 | g_hash_table_foreach(edt->pi.fd->dependent_frames, find_and_mark_frame_depended_upon, cf->provider.frames); |
| 3547 | } |
| 3548 | |
| 3549 | if (selected_frame_number != 0 && selected_frame_number == cf->count + 1) { |
| 3550 | /* If we are doing dissection and we have a "selected frame" |
| 3551 | * then load that frame's references (if any) onto the compiled |
| 3552 | * display filter. Selected frame number is ordinal, count is cardinal. */ |
| 3553 | dfilter_load_field_references(cf->dfcode, edt->tree); |
| 3554 | } |
| 3555 | tshark_elapsed.first_pass.dfilter_filter += g_get_monotonic_time() - elapsed_start; |
| 3556 | } |
| 3557 | |
| 3558 | cf->count++; |
| 3559 | } else { |
| 3560 | /* if we don't add it to the frame_data_sequence, clean it up right now |
| 3561 | * to avoid leaks */ |
| 3562 | frame_data_destroy(&fdlocal); |
| 3563 | } |
| 3564 | |
| 3565 | if (edt) |
| 3566 | epan_dissect_reset(edt); |
| 3567 | |
| 3568 | return passed; |
| 3569 | } |
| 3570 | |
| 3571 | /* |
| 3572 | * Set if reading a file was interrupted by a CTRL_ event on Windows or |
| 3573 | * a signal on UN*X. |
| 3574 | */ |
| 3575 | static bool_Bool read_interrupted; |
| 3576 | |
| 3577 | #ifdef _WIN32 |
| 3578 | static BOOL WINAPI |
| 3579 | read_cleanup(DWORD ctrltype _U___attribute__((unused))) |
| 3580 | { |
| 3581 | /* CTRL_C_EVENT is sort of like SIGINT, CTRL_BREAK_EVENT is unique to |
| 3582 | Windows, CTRL_CLOSE_EVENT is sort of like SIGHUP, CTRL_LOGOFF_EVENT |
| 3583 | is also sort of like SIGHUP, and CTRL_SHUTDOWN_EVENT is sort of |
| 3584 | like SIGTERM at least when the machine's shutting down. |
| 3585 | |
| 3586 | For now, we handle them all as indications that we should clean up |
| 3587 | and quit, just as we handle SIGINT, SIGHUP, and SIGTERM in that |
| 3588 | way on UNIX. |
| 3589 | |
| 3590 | We must return true so that no other handler - such as one that would |
| 3591 | terminate the process - gets called. |
| 3592 | |
| 3593 | XXX - for some reason, typing ^C to TShark, if you run this in |
| 3594 | a Cygwin console window in at least some versions of Cygwin, |
| 3595 | causes TShark to terminate immediately; this routine gets |
| 3596 | called, but the main loop doesn't get a chance to run and |
| 3597 | exit cleanly, at least if this is compiled with Microsoft Visual |
| 3598 | C++ (i.e., it's a property of the Cygwin console window or Bash; |
| 3599 | it happens if TShark is not built with Cygwin - for all I know, |
| 3600 | building it with Cygwin may make the problem go away). */ |
| 3601 | |
| 3602 | /* tell the read to stop */ |
| 3603 | read_interrupted = true1; |
| 3604 | |
| 3605 | return true1; |
| 3606 | } |
| 3607 | #else |
| 3608 | static void |
| 3609 | read_cleanup(int signum _U___attribute__((unused))) |
| 3610 | { |
| 3611 | /* tell the read to stop */ |
| 3612 | read_interrupted = true1; |
| 3613 | } |
| 3614 | #endif /* _WIN32 */ |
| 3615 | |
| 3616 | typedef enum { |
| 3617 | PASS_SUCCEEDED, |
| 3618 | PASS_READ_ERROR, |
| 3619 | PASS_WRITE_ERROR, |
| 3620 | PASS_PRINT_ERROR, |
| 3621 | PASS_INTERRUPTED |
| 3622 | } pass_status_t; |
| 3623 | |
| 3624 | static pass_status_t |
| 3625 | process_cap_file_first_pass(capture_file *cf, int max_packet_count, |
| 3626 | int64_t max_byte_count, int *err, char **err_info) |
| 3627 | { |
| 3628 | wtap_rec rec; |
| 3629 | epan_dissect_t *edt = NULL((void*)0); |
| 3630 | int64_t data_offset; |
| 3631 | pass_status_t status = PASS_SUCCEEDED; |
| 3632 | int framenum = 0; |
| 3633 | |
| 3634 | wtap_rec_init(&rec, DEFAULT_INIT_BUFFER_SIZE_2048(2 * 1024)); |
| 3635 | |
| 3636 | /* Allocate a frame_data_sequence for all the frames. */ |
| 3637 | cf->provider.frames = new_frame_data_sequence(); |
| 3638 | |
| 3639 | if (do_dissection) { |
| 3640 | bool_Bool create_proto_tree; |
| 3641 | |
| 3642 | /* |
| 3643 | * Determine whether we need to create a protocol tree. |
| 3644 | * We do if: |
| 3645 | * |
| 3646 | * we're going to apply a read filter; |
| 3647 | * |
| 3648 | * we're going to apply a display filter; |
| 3649 | * |
| 3650 | * a postdissector wants field values or protocols |
| 3651 | * on the first pass. |
| 3652 | */ |
| 3653 | create_proto_tree = |
| 3654 | (cf->rfcode != NULL((void*)0) || cf->dfcode != NULL((void*)0) || postdissectors_want_hfids() || dissect_color); |
| 3655 | |
| 3656 | ws_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 3656, __func__, "tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE"); } } while (0); |
| 3657 | |
| 3658 | /* We're not going to display the protocol tree on this pass, |
| 3659 | so it's not going to be "visible". */ |
| 3660 | edt = epan_dissect_new(cf->epan, create_proto_tree, false0); |
| 3661 | } |
| 3662 | |
| 3663 | ws_debug("tshark: reading records for first pass")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 3663, __func__, "tshark: reading records for first pass"); } } while (0); |
| 3664 | *err = 0; |
| 3665 | while (wtap_read(cf->provider.wth, &rec, err, err_info, &data_offset)) { |
| 3666 | if (read_interrupted) { |
| 3667 | status = PASS_INTERRUPTED; |
| 3668 | break; |
| 3669 | } |
| 3670 | framenum++; |
| 3671 | |
| 3672 | if (process_packet_first_pass(cf, edt, data_offset, &rec)) { |
| 3673 | /* Stop reading if we hit a stop condition */ |
| 3674 | if (max_packet_count > 0 && framenum >= max_packet_count) { |
| 3675 | ws_debug("tshark: max_packet_count (%d) reached", max_packet_count)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 3675, __func__, "tshark: max_packet_count (%d) reached", max_packet_count ); } } while (0); |
| 3676 | *err = 0; /* This is not an error */ |
| 3677 | break; |
| 3678 | } |
| 3679 | if (max_byte_count != 0 && data_offset >= max_byte_count) { |
| 3680 | ws_debug("tshark: max_byte_count (%" PRId64 "/%" PRId64 ") reached",do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 3681, __func__, "tshark: max_byte_count (%" "l" "d" "/%" "l" "d" ") reached", data_offset, max_byte_count); } } while (0) |
| 3681 | data_offset, max_byte_count)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 3681, __func__, "tshark: max_byte_count (%" "l" "d" "/%" "l" "d" ") reached", data_offset, max_byte_count); } } while (0); |
| 3682 | *err = 0; /* This is not an error */ |
| 3683 | break; |
| 3684 | } |
| 3685 | } |
| 3686 | wtap_rec_reset(&rec); |
| 3687 | } |
| 3688 | if (*err != 0) |
| 3689 | status = PASS_READ_ERROR; |
| 3690 | |
| 3691 | if (edt) |
| 3692 | epan_dissect_free(edt); |
| 3693 | |
| 3694 | /* Close the sequential I/O side, to free up memory it requires. */ |
| 3695 | wtap_sequential_close(cf->provider.wth); |
| 3696 | |
| 3697 | /* Allow the protocol dissectors to free up memory that they |
| 3698 | * don't need after the sequential run-through of the packets. */ |
| 3699 | postseq_cleanup_all_protocols(); |
| 3700 | |
| 3701 | cf->provider.prev_dis = NULL((void*)0); |
| 3702 | cf->provider.prev_cap = NULL((void*)0); |
| 3703 | |
| 3704 | wtap_rec_cleanup(&rec); |
| 3705 | |
| 3706 | return status; |
| 3707 | } |
| 3708 | |
| 3709 | static process_packet_status_t |
| 3710 | process_packet_second_pass(capture_file *cf, epan_dissect_t *edt, |
| 3711 | frame_data *fdata, wtap_rec *rec, unsigned tap_flags _U___attribute__((unused))) |
| 3712 | { |
| 3713 | column_info *cinfo; |
| 3714 | bool_Bool passed; |
| 3715 | wtap_block_t block = NULL((void*)0); |
| 3716 | int64_t elapsed_start; |
| 3717 | |
| 3718 | /* If we're not running a display filter and we're not printing any |
| 3719 | packet information, we don't need to do a dissection. This means |
| 3720 | that all packets can be marked as 'passed'. */ |
| 3721 | passed = true1; |
| 3722 | |
| 3723 | /* If we're going to print packet information, or we're going to |
| 3724 | run a read filter, or we're going to process taps, set up to |
| 3725 | do a dissection and do so. (This is the second pass of two |
| 3726 | passes over the packets; that's the pass where we print |
| 3727 | packet information or run taps.) */ |
| 3728 | if (edt) { |
| 3729 | /* If we're running a display filter, prime the epan_dissect_t with that |
| 3730 | filter. */ |
| 3731 | if (cf->dfcode) |
| 3732 | epan_dissect_prime_with_dfilter(edt, cf->dfcode); |
| 3733 | |
| 3734 | col_custom_prime_edt(edt, &cf->cinfo); |
| 3735 | |
| 3736 | output_fields_prime_edt(edt, output_fields); |
| 3737 | /* The PDML spec requires a 'geninfo' pseudo-protocol that needs |
| 3738 | * information from our 'frame' protocol. |
| 3739 | */ |
| 3740 | if (output_fields_num_fields(output_fields) != 0 && |
| 3741 | output_action == WRITE_XML) { |
| 3742 | epan_dissect_prime_with_hfid(edt, proto_registrar_get_id_byname("frame")); |
| 3743 | } |
| 3744 | |
| 3745 | /* We only need the columns if either |
| 3746 | 1) some tap or filter needs the columns |
| 3747 | or |
| 3748 | 2) we're printing packet info but we're *not* verbose; in verbose |
| 3749 | mode, we print the protocol tree, not the protocol summary. |
| 3750 | or |
| 3751 | 3) there is a column mapped to an individual field |
| 3752 | */ |
| 3753 | if ((tap_listeners_require_columns()) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields) || dfilter_requires_columns(cf->dfcode)) |
| 3754 | cinfo = &cf->cinfo; |
| 3755 | else |
| 3756 | cinfo = NULL((void*)0); |
| 3757 | |
| 3758 | frame_data_set_before_dissect(fdata, &cf->elapsed_time, |
| 3759 | &cf->provider.ref, cf->provider.prev_dis); |
| 3760 | if (cf->provider.ref == fdata) { |
| 3761 | ref_frame = *fdata; |
| 3762 | cf->provider.ref = &ref_frame; |
| 3763 | } |
| 3764 | |
| 3765 | if (dissect_color) { |
| 3766 | color_filters_prime_edt(edt); |
| 3767 | fdata->need_colorize = 1; |
| 3768 | } |
| 3769 | |
| 3770 | /* epan_dissect_run (and epan_dissect_reset) unref the block. |
| 3771 | * We need it later, e.g. in order to copy the options. */ |
| 3772 | block = wtap_block_ref(rec->block); |
| 3773 | elapsed_start = g_get_monotonic_time(); |
| 3774 | epan_dissect_run_with_taps(edt, cf->cd_t, rec, fdata, cinfo); |
| 3775 | tshark_elapsed.second_pass.dissect += g_get_monotonic_time() - elapsed_start; |
| 3776 | |
| 3777 | /* Run the display filter if we have one. */ |
| 3778 | if (cf->dfcode) { |
| 3779 | elapsed_start = g_get_monotonic_time(); |
| 3780 | passed = dfilter_apply_edt(cf->dfcode, edt); |
| 3781 | tshark_elapsed.second_pass.dfilter_filter += g_get_monotonic_time() - elapsed_start; |
| 3782 | } |
| 3783 | } |
| 3784 | |
| 3785 | if (passed) { |
| 3786 | frame_data_set_after_dissect(fdata, &cum_bytes); |
| 3787 | /* Process this packet. */ |
| 3788 | if (print_packet_info) { |
| 3789 | /* We're printing packet information; print the information for |
| 3790 | this packet. */ |
| 3791 | if (!print_packet(cf, edt)) { |
| 3792 | show_print_file_io_error(); |
| 3793 | return PROCESS_PACKET_PRINT_ERROR; |
| 3794 | } |
| 3795 | |
| 3796 | /* If we're doing "line-buffering", flush the standard output |
| 3797 | after every packet. See the comment above, for the "-l" |
| 3798 | option, for an explanation of why we do that. */ |
| 3799 | if (line_buffered) { |
| 3800 | if (fflush(stdoutstdout) == EOF(-1)) { |
| 3801 | /* Report a write error; see above */ |
| 3802 | show_print_file_io_error(); |
| 3803 | return PROCESS_PACKET_PRINT_ERROR; |
| 3804 | } |
| 3805 | } |
| 3806 | } |
| 3807 | cf->provider.prev_dis = fdata; |
| 3808 | } |
| 3809 | cf->provider.prev_cap = fdata; |
| 3810 | |
| 3811 | if (edt) { |
| 3812 | epan_dissect_reset(edt); |
| 3813 | rec->block = block; |
| 3814 | } |
| 3815 | return (passed || fdata->dependent_of_displayed) ? PROCESS_PACKET_PASSED : PROCESS_PACKET_DIDNT_PASS; |
| 3816 | } |
| 3817 | |
| 3818 | static bool_Bool |
| 3819 | process_new_idbs(wtap *wth, wtap_dumper *pdh, int *err, char **err_info) |
| 3820 | { |
| 3821 | wtap_block_t if_data; |
| 3822 | |
| 3823 | while ((if_data = wtap_get_next_interface_description(wth)) != NULL((void*)0)) { |
| 3824 | /* |
| 3825 | * Only add interface blocks if the output file supports (meaning |
| 3826 | * *requires*) them. |
| 3827 | * |
| 3828 | * That mean that the abstract interface provided by libwiretap |
| 3829 | * involves WTAP_BLOCK_IF_ID_AND_INFO blocks. |
| 3830 | */ |
| 3831 | if (pdh != NULL((void*)0)) { |
| 3832 | if (wtap_file_type_subtype_supports_block(wtap_dump_file_type_subtype(pdh), WTAP_BLOCK_IF_ID_AND_INFO) != BLOCK_NOT_SUPPORTED) { |
| 3833 | if (!wtap_dump_add_idb(pdh, if_data, err, err_info)) |
| 3834 | return false0; |
| 3835 | } |
| 3836 | } |
| 3837 | } |
| 3838 | return true1; |
| 3839 | } |
| 3840 | |
| 3841 | static pass_status_t |
| 3842 | process_cap_file_second_pass(capture_file *cf, wtap_dumper *pdh, |
| 3843 | int *err, char **err_info, |
| 3844 | volatile uint32_t *err_framenum, |
| 3845 | int max_write_packet_count) |
| 3846 | { |
| 3847 | wtap_rec rec; |
| 3848 | int framenum; |
| 3849 | bool_Bool got_printing_error; |
| 3850 | int write_framenum = 0; |
| 3851 | frame_data *fdata; |
| 3852 | bool_Bool filtering_tap_listeners; |
| 3853 | unsigned tap_flags; |
| 3854 | epan_dissect_t *edt = NULL((void*)0); |
| 3855 | pass_status_t status = PASS_SUCCEEDED; |
| 3856 | |
| 3857 | /* |
| 3858 | * Process whatever IDBs we haven't seen yet. This will be all |
| 3859 | * the IDBs in the file, as we've finished reading it; they'll |
| 3860 | * all be at the beginning of the output file. |
| 3861 | */ |
| 3862 | if (!process_new_idbs(cf->provider.wth, pdh, err, err_info)) { |
| 3863 | *err_framenum = 0; |
| 3864 | return PASS_WRITE_ERROR; |
| 3865 | } |
| 3866 | |
| 3867 | wtap_rec_init(&rec, DEFAULT_INIT_BUFFER_SIZE_2048(2 * 1024)); |
| 3868 | |
| 3869 | /* Do we have any tap listeners with filters? */ |
| 3870 | filtering_tap_listeners = have_filtering_tap_listeners(); |
| 3871 | |
| 3872 | /* Get the union of the flags for all tap listeners. */ |
| 3873 | tap_flags = union_of_tap_listener_flags(); |
| 3874 | |
| 3875 | if (do_dissection) { |
| 3876 | bool_Bool create_proto_tree; |
| 3877 | |
| 3878 | /* |
| 3879 | * Determine whether we need to create a protocol tree. |
| 3880 | * We do if: |
| 3881 | * |
| 3882 | * we're going to apply a display filter; |
| 3883 | * |
| 3884 | * we're going to print the protocol tree; |
| 3885 | * |
| 3886 | * one of the tap listeners requires a protocol tree; |
| 3887 | * |
| 3888 | * we have custom columns (which require field values, which |
| 3889 | * currently requires that we build a protocol tree). |
| 3890 | */ |
| 3891 | create_proto_tree = |
| 3892 | (cf->dfcode || print_details || filtering_tap_listeners || |
| 3893 | (tap_flags & TL_REQUIRES_PROTO_TREE0x00000001) || have_custom_cols(&cf->cinfo) || dissect_color); |
| 3894 | |
| 3895 | ws_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 3895, __func__, "tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE"); } } while (0); |
| 3896 | |
| 3897 | /* The protocol tree will be "visible", i.e., nothing faked, only if |
| 3898 | we're printing packet details, which is true if we're printing stuff |
| 3899 | ("print_packet_info" is true) and we're in verbose mode |
| 3900 | ("packet_details" is true). But if we specified certain fields with |
| 3901 | "-e", we'll prime those directly later. */ |
| 3902 | bool_Bool visible = print_packet_info && print_details && output_fields_num_fields(output_fields) == 0; |
| 3903 | edt = epan_dissect_new(cf->epan, create_proto_tree, visible); |
| 3904 | } |
| 3905 | |
| 3906 | /* |
| 3907 | * Force synchronous resolution of IP addresses; in this pass, we |
| 3908 | * can't do it in the background and fix up past dissections. |
| 3909 | */ |
| 3910 | set_resolution_synchrony(true1); |
| 3911 | |
| 3912 | for (framenum = 1, got_printing_error = false0; |
| 3913 | framenum <= (int)cf->count && !got_printing_error; |
| 3914 | framenum++) { |
| 3915 | if (read_interrupted) { |
| 3916 | status = PASS_INTERRUPTED; |
| 3917 | break; |
| 3918 | } |
| 3919 | fdata = frame_data_sequence_find(cf->provider.frames, framenum); |
| 3920 | if (!wtap_seek_read(cf->provider.wth, fdata->file_off, &rec, err, |
| 3921 | err_info)) { |
| 3922 | /* Error reading from the input file. */ |
| 3923 | status = PASS_READ_ERROR; |
| 3924 | break; |
| 3925 | } |
| 3926 | ws_debug("tshark: invoking process_packet_second_pass() for frame #%d", framenum)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 3926, __func__, "tshark: invoking process_packet_second_pass() for frame #%d" , framenum); } } while (0); |
| 3927 | switch (process_packet_second_pass(cf, edt, fdata, &rec, tap_flags)) { |
| 3928 | |
| 3929 | case PROCESS_PACKET_PASSED: |
| 3930 | /* Either there's no read filtering or this packet passed the |
| 3931 | filter, so, if we're writing to a capture file, write |
| 3932 | this packet out. */ |
| 3933 | /* XXX - With certain file types, time stamps are only available |
| 3934 | * from a sequential wtap_read but not wtap_seek_read, in which |
| 3935 | * case we could copy them from fdata when saving. */ |
| 3936 | write_framenum++; |
| 3937 | if (pdh != NULL((void*)0)) { |
| 3938 | ws_debug("tshark: writing packet #%d to outfile packet #%d", framenum, write_framenum)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 3938, __func__, "tshark: writing packet #%d to outfile packet #%d" , framenum, write_framenum); } } while (0); |
| 3939 | if (!wtap_dump(pdh, &rec, err, err_info)) { |
| 3940 | /* Error writing to the output file. */ |
| 3941 | ws_debug("tshark: error writing to a capture file (%d)", *err)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 3941, __func__, "tshark: error writing to a capture file (%d)" , *err); } } while (0); |
| 3942 | *err_framenum = framenum; |
| 3943 | status = PASS_WRITE_ERROR; |
| 3944 | break; |
| 3945 | } |
| 3946 | /* Stop reading if we hit a stop condition */ |
| 3947 | if (max_write_packet_count > 0 && write_framenum >= max_write_packet_count) { |
| 3948 | ws_debug("tshark: max_write_packet_count (%d) reached", max_write_packet_count)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 3948, __func__, "tshark: max_write_packet_count (%d) reached" , max_write_packet_count); } } while (0); |
| 3949 | *err = 0; /* This is not an error */ |
| 3950 | break; |
| 3951 | } |
| 3952 | } |
| 3953 | break; |
| 3954 | |
| 3955 | case PROCESS_PACKET_DIDNT_PASS: |
| 3956 | /* There is read filtering and this packet didn't pass the filter. */ |
| 3957 | break; |
| 3958 | |
| 3959 | case PROCESS_PACKET_PRINT_ERROR: |
| 3960 | /* Either here's no read filtering or this packet passed |
| 3961 | the read filter, and we tried to print dissection |
| 3962 | informaion, but that failed. We've already reported |
| 3963 | the error, unless it was EPIPE, in which case we just |
| 3964 | silently quit; stop processing packes. */ |
| 3965 | got_printing_error = true1; |
| 3966 | status = PASS_PRINT_ERROR; |
| 3967 | break; |
| 3968 | } |
| 3969 | wtap_rec_reset(&rec); |
| 3970 | } |
| 3971 | |
| 3972 | if (edt) |
| 3973 | epan_dissect_free(edt); |
| 3974 | |
| 3975 | wtap_rec_cleanup(&rec); |
| 3976 | |
| 3977 | return status; |
| 3978 | } |
| 3979 | |
| 3980 | static pass_status_t |
| 3981 | process_cap_file_single_pass(capture_file *cf, wtap_dumper *pdh, |
| 3982 | int max_packet_count, int64_t max_byte_count, |
| 3983 | int max_write_packet_count, |
| 3984 | int *err, char **err_info, |
| 3985 | volatile uint32_t *err_framenum) |
| 3986 | { |
| 3987 | wtap_rec rec; |
| 3988 | bool_Bool create_proto_tree = false0; |
| 3989 | bool_Bool filtering_tap_listeners; |
| 3990 | unsigned tap_flags; |
| 3991 | int framenum = 0; |
| 3992 | bool_Bool got_printing_error; |
| 3993 | int write_framenum = 0; |
| 3994 | epan_dissect_t *edt = NULL((void*)0); |
| 3995 | int64_t data_offset; |
| 3996 | pass_status_t status = PASS_SUCCEEDED; |
| 3997 | bool_Bool visible = false0; |
| 3998 | |
| 3999 | wtap_rec_init(&rec, DEFAULT_INIT_BUFFER_SIZE_2048(2 * 1024)); |
| 4000 | |
| 4001 | /* Do we have any tap listeners with filters? */ |
| 4002 | filtering_tap_listeners = have_filtering_tap_listeners(); |
| 4003 | |
| 4004 | /* Get the union of the flags for all tap listeners. */ |
| 4005 | tap_flags = union_of_tap_listener_flags(); |
| 4006 | |
| 4007 | if (do_dissection) { |
| 4008 | /* |
| 4009 | * Determine whether we need to create a protocol tree. |
| 4010 | * We do if: |
| 4011 | * |
| 4012 | * we're going to apply a read filter; |
| 4013 | * |
| 4014 | * we're going to apply a display filter; |
| 4015 | * |
| 4016 | * we're going to print the protocol tree; |
| 4017 | * |
| 4018 | * one of the tap listeners is going to apply a filter; |
| 4019 | * |
| 4020 | * one of the tap listeners requires a protocol tree; |
| 4021 | * |
| 4022 | * a postdissector wants field values or protocols |
| 4023 | * on the first pass; |
| 4024 | * |
| 4025 | * we have custom columns (which require field values, which |
| 4026 | * currently requires that we build a protocol tree). |
| 4027 | */ |
| 4028 | create_proto_tree = |
| 4029 | (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners || |
| 4030 | (tap_flags & TL_REQUIRES_PROTO_TREE0x00000001) || postdissectors_want_hfids() || |
| 4031 | have_custom_cols(&cf->cinfo) || dissect_color); |
| 4032 | |
| 4033 | ws_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4033, __func__, "tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE"); } } while (0); |
| 4034 | |
| 4035 | /* The protocol tree will be "visible", i.e., nothing faked, only if |
| 4036 | we're printing packet details, which is true if we're printing stuff |
| 4037 | ("print_packet_info" is true) and we're in verbose mode |
| 4038 | ("packet_details" is true). But if we specified certain fields with |
| 4039 | "-e", we'll prime those directly later. */ |
| 4040 | visible = print_packet_info && print_details && output_fields_num_fields(output_fields) == 0; |
| 4041 | edt = epan_dissect_new(cf->epan, create_proto_tree, visible); |
| 4042 | } |
| 4043 | |
| 4044 | /* |
| 4045 | * Force synchronous resolution of IP addresses; we're doing only |
| 4046 | * one pass, so we can't do it in the background and fix up past |
| 4047 | * dissections. |
| 4048 | */ |
| 4049 | set_resolution_synchrony(true1); |
| 4050 | |
| 4051 | *err = 0; |
| 4052 | got_printing_error = false0; |
| 4053 | while (wtap_read(cf->provider.wth, &rec, err, err_info, &data_offset) && |
| 4054 | !got_printing_error) { |
| 4055 | if (read_interrupted) { |
| 4056 | status = PASS_INTERRUPTED; |
| 4057 | break; |
| 4058 | } |
| 4059 | framenum++; |
| 4060 | |
| 4061 | /* |
| 4062 | * Process whatever IDBs we haven't seen yet. |
| 4063 | */ |
| 4064 | if (!process_new_idbs(cf->provider.wth, pdh, err, err_info)) { |
| 4065 | *err_framenum = framenum; |
| 4066 | status = PASS_WRITE_ERROR; |
| 4067 | break; |
| 4068 | } |
| 4069 | |
| 4070 | ws_debug("tshark: processing packet #%d", framenum)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4070, __func__, "tshark: processing packet #%d", framenum); } } while (0); |
| 4071 | |
| 4072 | reset_epan_mem(cf, edt, create_proto_tree, visible); |
| 4073 | |
| 4074 | switch (process_packet_single_pass(cf, edt, data_offset, &rec, |
| 4075 | tap_flags)) { |
| 4076 | case PROCESS_PACKET_PASSED: |
| 4077 | /* Either there's no read filtering or this packet passed the |
| 4078 | filter, so, if we're writing to a capture file, write |
| 4079 | this packet out. */ |
| 4080 | write_framenum++; |
| 4081 | if (pdh != NULL((void*)0)) { |
| 4082 | ws_debug("tshark: writing packet #%d to outfile as #%d",do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4083, __func__, "tshark: writing packet #%d to outfile as #%d" , framenum, write_framenum); } } while (0) |
| 4083 | framenum, write_framenum)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4083, __func__, "tshark: writing packet #%d to outfile as #%d" , framenum, write_framenum); } } while (0); |
| 4084 | if (!wtap_dump(pdh, &rec, err, err_info)) { |
| 4085 | /* Error writing to the output file. */ |
| 4086 | ws_debug("tshark: error writing to a capture file (%d)", *err)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4086, __func__, "tshark: error writing to a capture file (%d)" , *err); } } while (0); |
| 4087 | *err_framenum = framenum; |
| 4088 | status = PASS_WRITE_ERROR; |
| 4089 | break; |
| 4090 | } |
| 4091 | } |
| 4092 | break; |
| 4093 | |
| 4094 | case PROCESS_PACKET_DIDNT_PASS: |
| 4095 | /* There is read filtering and this packet didn't pass the filter. */ |
| 4096 | break; |
| 4097 | |
| 4098 | case PROCESS_PACKET_PRINT_ERROR: |
| 4099 | /* Either here's no read filtering or this packet passed |
| 4100 | the read filter, and we tried to print dissection |
| 4101 | informaion, but that failed. We've already reported |
| 4102 | the error, unless it was EPIPE, in which case we just |
| 4103 | silently quit; tell the capture child to stop. */ |
| 4104 | got_printing_error = true1; |
| 4105 | break; |
| 4106 | } |
| 4107 | /* Stop reading if we hit a stop condition */ |
| 4108 | if (max_packet_count > 0 && framenum >= max_packet_count) { |
| 4109 | ws_debug("tshark: max_packet_count (%d) reached", max_packet_count)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4109, __func__, "tshark: max_packet_count (%d) reached", max_packet_count ); } } while (0); |
| 4110 | *err = 0; /* This is not a read error */ |
| 4111 | break; |
| 4112 | } |
| 4113 | if (max_write_packet_count > 0 && write_framenum >= max_write_packet_count) { |
| 4114 | ws_debug("tshark: max_write_packet_count (%d) reached", max_write_packet_count)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4114, __func__, "tshark: max_write_packet_count (%d) reached" , max_write_packet_count); } } while (0); |
| 4115 | *err = 0; /* This is not a read error */ |
| 4116 | break; |
| 4117 | } |
| 4118 | if (max_byte_count != 0 && data_offset >= max_byte_count) { |
| 4119 | ws_debug("tshark: max_byte_count (%" PRId64 "/%" PRId64 ") reached",do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4120, __func__, "tshark: max_byte_count (%" "l" "d" "/%" "l" "d" ") reached", data_offset, max_byte_count); } } while (0) |
| 4120 | data_offset, max_byte_count)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4120, __func__, "tshark: max_byte_count (%" "l" "d" "/%" "l" "d" ") reached", data_offset, max_byte_count); } } while (0); |
| 4121 | *err = 0; /* This is not a read error */ |
| 4122 | break; |
| 4123 | } |
| 4124 | /* Stop reading if we got an error processing the packet. */ |
| 4125 | if (got_printing_error) { |
| 4126 | *err = 0; /* This is not a read error */ |
| 4127 | break; |
| 4128 | } |
| 4129 | wtap_rec_reset(&rec); |
| 4130 | } |
| 4131 | if (status == PASS_SUCCEEDED) { |
| 4132 | if (*err != 0) { |
| 4133 | /* Error reading from the input file. */ |
| 4134 | status = PASS_READ_ERROR; |
| 4135 | } else { |
| 4136 | /* |
| 4137 | * Process whatever IDBs we haven't seen yet. |
| 4138 | */ |
| 4139 | if (!process_new_idbs(cf->provider.wth, pdh, err, err_info)) { |
| 4140 | *err_framenum = framenum; |
| 4141 | status = PASS_WRITE_ERROR; |
| 4142 | } |
| 4143 | |
| 4144 | /* |
| 4145 | * Did we get a printing error? |
| 4146 | */ |
| 4147 | if (got_printing_error) { |
| 4148 | status = PASS_PRINT_ERROR; |
| 4149 | } |
| 4150 | } |
| 4151 | } |
| 4152 | |
| 4153 | if (edt) |
| 4154 | epan_dissect_free(edt); |
| 4155 | |
| 4156 | wtap_rec_cleanup(&rec); |
| 4157 | |
| 4158 | return status; |
| 4159 | } |
| 4160 | |
| 4161 | static process_file_status_t |
| 4162 | process_cap_file(capture_file *cf, char *save_file, int out_file_type, |
| 4163 | bool_Bool out_file_name_res, int max_packet_count, int64_t max_byte_count, |
| 4164 | int max_write_packet_count, ws_compression_type compression_type) |
| 4165 | { |
| 4166 | process_file_status_t status = PROCESS_FILE_SUCCEEDED; |
| 4167 | wtap_dumper *pdh; |
| 4168 | #ifndef _WIN32 |
| 4169 | struct sigaction action, oldaction; |
| 4170 | #endif |
| 4171 | int err = 0, err_pass1 = 0; |
| 4172 | char *err_info = NULL((void*)0), *err_info_pass1 = NULL((void*)0); |
| 4173 | volatile uint32_t err_framenum; |
| 4174 | wtap_dump_params params = WTAP_DUMP_PARAMS_INIT{.snaplen=0}; |
| 4175 | char *shb_user_appl; |
| 4176 | pass_status_t first_pass_status, second_pass_status; |
| 4177 | int64_t elapsed_start; |
| 4178 | |
| 4179 | if (save_file != NULL((void*)0)) { |
| 4180 | /* Set up to write to the capture file. */ |
| 4181 | wtap_dump_params_init_no_idbs(¶ms, cf->provider.wth); |
| 4182 | |
| 4183 | /* If we don't have an application name add TShark */ |
| 4184 | if (wtap_block_get_string_option_value(g_array_index(params.shb_hdrs, wtap_block_t, 0)(((wtap_block_t*) (void *) (params.shb_hdrs)->data) [(0)]), OPT_SHB_USERAPPL4, &shb_user_appl) != WTAP_OPTTYPE_SUCCESS) { |
| 4185 | /* this is free'd by wtap_block_unref() later */ |
| 4186 | wtap_block_add_string_option_format(g_array_index(params.shb_hdrs, wtap_block_t, 0)(((wtap_block_t*) (void *) (params.shb_hdrs)->data) [(0)]), OPT_SHB_USERAPPL4, "%s", get_appname_and_version()); |
| 4187 | } |
| 4188 | if (capture_comments != NULL((void*)0)) { |
| 4189 | for (unsigned i = 0; i < capture_comments->len; i++) { |
| 4190 | wtap_block_add_string_option_format(g_array_index(params.shb_hdrs, wtap_block_t, 0)(((wtap_block_t*) (void *) (params.shb_hdrs)->data) [(0)]), |
| 4191 | OPT_COMMENT1, "%s", |
| 4192 | (char *)g_ptr_array_index(capture_comments, i)((capture_comments)->pdata)[i]); |
| 4193 | } |
| 4194 | } |
| 4195 | |
| 4196 | ws_debug("tshark: writing format type %d, to %s", out_file_type, save_file)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4196, __func__, "tshark: writing format type %d, to %s", out_file_type , save_file); } } while (0); |
| 4197 | if (strcmp(save_file, "-") == 0) { |
| 4198 | /* Write to the standard output. */ |
| 4199 | pdh = wtap_dump_open_stdout(out_file_type, compression_type, ¶ms, |
| 4200 | &err, &err_info); |
| 4201 | } else { |
| 4202 | pdh = wtap_dump_open(save_file, out_file_type, compression_type, ¶ms, |
| 4203 | &err, &err_info); |
| 4204 | } |
| 4205 | |
| 4206 | g_free(params.idb_inf); |
| 4207 | params.idb_inf = NULL((void*)0); |
| 4208 | |
| 4209 | if (pdh == NULL((void*)0)) { |
| 4210 | /* We couldn't set up to write to the capture file. */ |
| 4211 | report_cfile_dump_open_failure(save_file, err, err_info, |
| 4212 | out_file_type); |
| 4213 | status = PROCESS_FILE_NO_FILE_PROCESSED; |
| 4214 | goto out; |
| 4215 | } |
| 4216 | } else { |
| 4217 | /* Set up to print packet information. */ |
| 4218 | if (print_packet_info) { |
| 4219 | if (!write_preamble(cf)) { |
| 4220 | show_print_file_io_error(); |
| 4221 | status = PROCESS_FILE_NO_FILE_PROCESSED; |
| 4222 | goto out; |
| 4223 | } |
| 4224 | } |
| 4225 | pdh = NULL((void*)0); |
| 4226 | } |
| 4227 | |
| 4228 | #ifdef _WIN32 |
| 4229 | /* Catch a CTRL+C event and, if we get it, clean up and exit. */ |
| 4230 | SetConsoleCtrlHandler(read_cleanup, true1); |
| 4231 | #else /* _WIN32 */ |
| 4232 | /* Catch SIGINT and SIGTERM and, if we get either of them, |
| 4233 | clean up and exit. If SIGHUP isn't being ignored, catch |
| 4234 | it too and, if we get it, clean up and exit. |
| 4235 | |
| 4236 | We restart any read that was in progress, so that it doesn't |
| 4237 | disrupt reading from the sync pipe. The signal handler tells |
| 4238 | the capture child to finish; it will report that it finished, |
| 4239 | or will exit abnormally, so we'll stop reading from the sync |
| 4240 | pipe, pick up the exit status, and quit. */ |
| 4241 | memset(&action, 0, sizeof(action)); |
| 4242 | action.sa_handler__sigaction_handler.sa_handler = read_cleanup; |
| 4243 | action.sa_flags = SA_RESTART0x10000000; |
| 4244 | sigemptyset(&action.sa_mask); |
| 4245 | sigaction(SIGTERM15, &action, NULL((void*)0)); |
| 4246 | sigaction(SIGINT2, &action, NULL((void*)0)); |
| 4247 | sigaction(SIGHUP1, NULL((void*)0), &oldaction); |
| 4248 | if (oldaction.sa_handler__sigaction_handler.sa_handler == SIG_DFL((__sighandler_t) 0)) |
| 4249 | sigaction(SIGHUP1, &action, NULL((void*)0)); |
| 4250 | #endif /* _WIN32 */ |
| 4251 | |
| 4252 | if (perform_two_pass_analysis) { |
| 4253 | ws_debug("tshark: perform_two_pass_analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4253, __func__, "tshark: perform_two_pass_analysis, do_dissection=%s" , do_dissection ? "TRUE" : "FALSE"); } } while (0); |
| 4254 | |
| 4255 | elapsed_start = g_get_monotonic_time(); |
| 4256 | first_pass_status = process_cap_file_first_pass(cf, max_packet_count, |
| 4257 | max_byte_count, |
| 4258 | &err_pass1, |
| 4259 | &err_info_pass1); |
| 4260 | tshark_elapsed.elapsed_first_pass = g_get_monotonic_time() - elapsed_start; |
| 4261 | |
| 4262 | ws_debug("tshark: done with first pass")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4262, __func__, "tshark: done with first pass"); } } while ( 0); |
| 4263 | |
| 4264 | if (first_pass_status == PASS_INTERRUPTED) { |
| 4265 | /* The first pass was interrupted; skip the second pass. |
| 4266 | It won't be run, so it won't get an error. */ |
| 4267 | second_pass_status = PASS_SUCCEEDED; |
| 4268 | } else { |
| 4269 | /* |
| 4270 | * If we got a read error on the first pass, we still do the second |
| 4271 | * pass, so we can at least process the packets we read, and then |
| 4272 | * report the first-pass error after the second pass (and before |
| 4273 | * we report any second-pass errors), so all the errors show up |
| 4274 | * at the end. |
| 4275 | */ |
| 4276 | elapsed_start = g_get_monotonic_time(); |
| 4277 | second_pass_status = process_cap_file_second_pass(cf, pdh, &err, &err_info, |
| 4278 | &err_framenum, |
| 4279 | max_write_packet_count); |
| 4280 | tshark_elapsed.elapsed_second_pass = g_get_monotonic_time() - elapsed_start; |
| 4281 | |
| 4282 | ws_debug("tshark: done with second pass")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4282, __func__, "tshark: done with second pass"); } } while (0); |
| 4283 | } |
| 4284 | } |
| 4285 | else { |
| 4286 | /* !perform_two_pass_analysis */ |
| 4287 | ws_debug("tshark: perform one pass analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4287, __func__, "tshark: perform one pass analysis, do_dissection=%s" , do_dissection ? "TRUE" : "FALSE"); } } while (0); |
| 4288 | |
| 4289 | first_pass_status = PASS_SUCCEEDED; /* There is no first pass */ |
| 4290 | |
| 4291 | elapsed_start = g_get_monotonic_time(); |
| 4292 | second_pass_status = process_cap_file_single_pass(cf, pdh, |
| 4293 | max_packet_count, |
| 4294 | max_byte_count, |
| 4295 | max_write_packet_count, |
| 4296 | &err, &err_info, |
| 4297 | &err_framenum); |
| 4298 | tshark_elapsed.elapsed_first_pass = g_get_monotonic_time() - elapsed_start; |
| 4299 | |
| 4300 | ws_debug("tshark: done with single pass")do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4300, __func__, "tshark: done with single pass"); } } while (0); |
| 4301 | } |
| 4302 | |
| 4303 | if (first_pass_status != PASS_SUCCEEDED || |
| 4304 | second_pass_status != PASS_SUCCEEDED) { |
| 4305 | /* |
| 4306 | * At least one of the passes didn't succeed; either it got a failure |
| 4307 | * or it was interrupted. |
| 4308 | */ |
| 4309 | if (first_pass_status != PASS_INTERRUPTED || |
| 4310 | second_pass_status != PASS_INTERRUPTED) { |
| 4311 | /* At least one of the passes got an error. */ |
| 4312 | ws_debug("tshark: something failed along the line (%d)", err)do { if (1) { ws_log_full("Main", LOG_LEVEL_DEBUG, "tshark.c" , 4312, __func__, "tshark: something failed along the line (%d)" , err); } } while (0); |
| 4313 | /* |
| 4314 | * If we're printing packet data, and the standard output and error |
| 4315 | * are going to the same place, flush the standard output, so everything |
| 4316 | * buffered up is written, and then print a newline to the standard |
| 4317 | * error before printing the error message, to separate it from the |
| 4318 | * packet data. (Alas, that only works on UN*X; st_dev is meaningless, |
| 4319 | * and the _fstat() documentation at Microsoft doesn't indicate whether |
| 4320 | * st_ino is even supported.) |
| 4321 | */ |
| 4322 | #ifndef _WIN32 |
| 4323 | if (print_packet_info) { |
| 4324 | ws_statb64struct stat stat_stdout, stat_stderr; |
| 4325 | |
| 4326 | if (ws_fstat64fstat(1, &stat_stdout) == 0 && ws_fstat64fstat(2, &stat_stderr) == 0) { |
| 4327 | if (stat_stdout.st_dev == stat_stderr.st_dev && |
| 4328 | stat_stdout.st_ino == stat_stderr.st_ino) { |
| 4329 | fflush(stdoutstdout); |
| 4330 | fprintf(stderrstderr, "\n"); |
| 4331 | } |
| 4332 | } |
| 4333 | } |
| 4334 | #endif |
| 4335 | } |
| 4336 | /* Report status of pass 1 of two-pass processing. */ |
| 4337 | switch (first_pass_status) { |
| 4338 | |
| 4339 | case PASS_SUCCEEDED: |
| 4340 | /* No problem. */ |
| 4341 | break; |
| 4342 | |
| 4343 | case PASS_READ_ERROR: |
| 4344 | /* Read error. */ |
| 4345 | report_cfile_read_failure(cf->filename, err_pass1, err_info_pass1); |
| 4346 | status = PROCESS_FILE_ERROR; |
| 4347 | break; |
| 4348 | |
| 4349 | case PASS_WRITE_ERROR: |
| 4350 | /* Won't happen on the first pass. */ |
| 4351 | break; |
| 4352 | |
| 4353 | case PASS_PRINT_ERROR: |
| 4354 | /* Won't happen on the first pass. */ |
| 4355 | break; |
| 4356 | |
| 4357 | case PASS_INTERRUPTED: |
| 4358 | /* Not an error, so nothing to report. */ |
| 4359 | status = PROCESS_FILE_INTERRUPTED; |
| 4360 | break; |
| 4361 | } |
| 4362 | |
| 4363 | /* Report status of pass 2 of two-pass processing or the only pass |
| 4364 | of one-pass processing. */ |
| 4365 | switch (second_pass_status) { |
| 4366 | |
| 4367 | case PASS_SUCCEEDED: |
| 4368 | /* No problem. */ |
| 4369 | break; |
| 4370 | |
| 4371 | case PASS_READ_ERROR: |
| 4372 | /* Read error. */ |
| 4373 | report_cfile_read_failure(cf->filename, err, err_info); |
| 4374 | status = PROCESS_FILE_ERROR; |
| 4375 | break; |
| 4376 | |
| 4377 | case PASS_WRITE_ERROR: |
| 4378 | /* Write error. |
| 4379 | XXX - framenum is not necessarily the frame number in |
| 4380 | the input file if there was a read filter. */ |
| 4381 | report_cfile_write_failure(cf->filename, save_file, err, err_info, |
| 4382 | err_framenum, out_file_type); |
| 4383 | status = PROCESS_FILE_ERROR; |
| 4384 | break; |
| 4385 | |
| 4386 | case PASS_PRINT_ERROR: |
| 4387 | /* The print error has already been reported. */ |
| 4388 | status = PROCESS_FILE_ERROR; |
| 4389 | break; |
| 4390 | |
| 4391 | case PASS_INTERRUPTED: |
| 4392 | /* Not an error, so nothing to report. */ |
| 4393 | status = PROCESS_FILE_INTERRUPTED; |
| 4394 | break; |
| 4395 | } |
| 4396 | } |
| 4397 | if (save_file != NULL((void*)0)) { |
| 4398 | if (second_pass_status != PASS_WRITE_ERROR) { |
| 4399 | if (pdh && out_file_name_res) { |
| 4400 | /* XXX: This doesn't work as expected. First, it should be |
| 4401 | * moved to between the first and second passes (if doing |
| 4402 | * two-pass mode), so that the new NRB appears before packets, |
| 4403 | * which is better for subsequent one-pass mode. It never works |
| 4404 | * well in one-pass mode. |
| 4405 | * |
| 4406 | * Second, it only writes hosts that we've done lookups for, |
| 4407 | * which means unless packet details are printed (or there's |
| 4408 | * a display filter that matches something that will do a host |
| 4409 | * lookup, e.g. -Y "ip") it doesn't actually have anything |
| 4410 | * in the list to save. Notably, that includes the case of |
| 4411 | * "tshark [-2] -H hosts.txt -r <infile> -w <outfile>", |
| 4412 | * which a user would certainly expect to dissect packets, |
| 4413 | * lookup hostnames, and add them to an NRB for later use. |
| 4414 | * A workaround is if "-V > /dev/null" is added, but who |
| 4415 | * expects that? |
| 4416 | * |
| 4417 | * A third issue is that name resolution blocks aren't |
| 4418 | * written for live captures. |
| 4419 | */ |
| 4420 | if (!wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list())) { |
| 4421 | cmdarg_err("The file format \"%s\" doesn't support name resolution information.", |
| 4422 | wtap_file_type_subtype_name(out_file_type)); |
| 4423 | } |
| 4424 | } |
| 4425 | /* Now close the capture file. */ |
| 4426 | if (!wtap_dump_close(pdh, NULL((void*)0), &err, &err_info)) { |
| 4427 | report_cfile_close_failure(save_file, err, err_info); |
| 4428 | status = PROCESS_FILE_ERROR; |
| 4429 | } |
| 4430 | } else { |
| 4431 | /* We got a write error; it was reported, so just close the dump file |
| 4432 | without bothering to check for further errors. */ |
| 4433 | wtap_dump_close(pdh, NULL((void*)0), &err, &err_info); |
| 4434 | g_free(err_info); |
| 4435 | status = PROCESS_FILE_ERROR; |
| 4436 | } |
| 4437 | } else { |
| 4438 | if (print_packet_info) { |
| 4439 | if (!write_finale()) { |
| 4440 | show_print_file_io_error(); |
| 4441 | status = PROCESS_FILE_ERROR; |
| 4442 | } |
| 4443 | } |
| 4444 | } |
| 4445 | |
| 4446 | out: |
| 4447 | wtap_close(cf->provider.wth); |
| 4448 | cf->provider.wth = NULL((void*)0); |
| 4449 | |
| 4450 | wtap_dump_params_cleanup(¶ms); |
| 4451 | |
| 4452 | return status; |
| 4453 | } |
| 4454 | |
| 4455 | static process_packet_status_t |
| 4456 | process_packet_single_pass(capture_file *cf, epan_dissect_t *edt, int64_t offset, |
| 4457 | wtap_rec *rec, unsigned tap_flags _U___attribute__((unused))) |
| 4458 | { |
| 4459 | frame_data fdata; |
| 4460 | column_info *cinfo; |
| 4461 | bool_Bool passed; |
| 4462 | wtap_block_t block = NULL((void*)0); |
| 4463 | int64_t elapsed_start; |
| 4464 | |
| 4465 | /* Count this packet. */ |
| 4466 | cf->count++; |
| 4467 | |
| 4468 | /* If we're not running a display filter and we're not printing any |
| 4469 | packet information, we don't need to do a dissection. This means |
| 4470 | that all packets can be marked as 'passed'. */ |
| 4471 | passed = true1; |
| 4472 | |
| 4473 | frame_data_init(&fdata, cf->count, rec, offset, cum_bytes); |
| 4474 | |
| 4475 | /* If we're going to print packet information, or we're going to |
| 4476 | run a read filter, or we're going to process taps, set up to |
| 4477 | do a dissection and do so. (This is the one and only pass |
| 4478 | over the packets, so, if we'll be printing packet information |
| 4479 | or running taps, we'll be doing it here.) */ |
| 4480 | if (edt) { |
| 4481 | /* If we're running a filter, prime the epan_dissect_t with that |
| 4482 | filter. */ |
| 4483 | if (cf->dfcode) |
| 4484 | epan_dissect_prime_with_dfilter(edt, cf->dfcode); |
| 4485 | |
| 4486 | col_custom_prime_edt(edt, &cf->cinfo); |
| 4487 | |
| 4488 | output_fields_prime_edt(edt, output_fields); |
| 4489 | /* The PDML spec requires a 'geninfo' pseudo-protocol that needs |
| 4490 | * information from our 'frame' protocol. |
| 4491 | */ |
| 4492 | if (output_fields_num_fields(output_fields) != 0 && |
| 4493 | output_action == WRITE_XML) { |
| 4494 | epan_dissect_prime_with_hfid(edt, proto_registrar_get_id_byname("frame")); |
| 4495 | } |
| 4496 | |
| 4497 | /* We only need the columns if either |
| 4498 | 1) some tap or filter needs the columns |
| 4499 | or |
| 4500 | 2) we're printing packet info but we're *not* verbose; in verbose |
| 4501 | mode, we print the protocol tree, not the protocol summary. |
| 4502 | or |
| 4503 | 3) there is a column mapped as an individual field */ |
| 4504 | if ((tap_listeners_require_columns()) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields) || dfilter_requires_columns(cf->dfcode)) |
| 4505 | cinfo = &cf->cinfo; |
| 4506 | else |
| 4507 | cinfo = NULL((void*)0); |
| 4508 | |
| 4509 | frame_data_set_before_dissect(&fdata, &cf->elapsed_time, |
| 4510 | &cf->provider.ref, cf->provider.prev_dis); |
| 4511 | if (cf->provider.ref == &fdata) { |
| 4512 | ref_frame = fdata; |
| 4513 | cf->provider.ref = &ref_frame; |
| 4514 | } |
| 4515 | |
| 4516 | if (dissect_color) { |
| 4517 | color_filters_prime_edt(edt); |
| 4518 | fdata.need_colorize = 1; |
| 4519 | } |
| 4520 | |
| 4521 | /* epan_dissect_run (and epan_dissect_reset) unref the block. |
| 4522 | * We need it later, e.g. in order to copy the options. */ |
| 4523 | block = wtap_block_ref(rec->block); |
| 4524 | elapsed_start = g_get_monotonic_time(); |
| 4525 | epan_dissect_run_with_taps(edt, cf->cd_t, rec, &fdata, cinfo); |
| 4526 | tshark_elapsed.first_pass.dissect += g_get_monotonic_time() - elapsed_start; |
| 4527 | |
| 4528 | /* Run the filter if we have it. */ |
| 4529 | if (cf->dfcode) { |
| 4530 | elapsed_start = g_get_monotonic_time(); |
| 4531 | passed = dfilter_apply_edt(cf->dfcode, edt); |
| 4532 | tshark_elapsed.first_pass.dfilter_filter += g_get_monotonic_time() - elapsed_start; |
| 4533 | } |
| 4534 | } |
| 4535 | |
| 4536 | if (passed) { |
| 4537 | frame_data_set_after_dissect(&fdata, &cum_bytes); |
| 4538 | |
| 4539 | /* Process this packet. */ |
| 4540 | if (print_packet_info) { |
| 4541 | /* We're printing packet information; print the information for |
| 4542 | this packet. */ |
| 4543 | ws_assert(edt)do { if ((1) && !(edt)) ws_log_fatal_full("Main", LOG_LEVEL_ERROR , "tshark.c", 4543, __func__, "assertion failed: %s", "edt"); } while (0); |
| 4544 | if (!print_packet(cf, edt)) { |
| 4545 | show_print_file_io_error(); |
| 4546 | return PROCESS_PACKET_PRINT_ERROR; |
| 4547 | } |
| 4548 | |
| 4549 | /* If we're doing "line-buffering", flush the standard output |
| 4550 | after every packet. See the comment above, for the "-l" |
| 4551 | option, for an explanation of why we do that. */ |
| 4552 | if (line_buffered) { |
| 4553 | if (fflush(stdoutstdout) == EOF(-1)) { |
| 4554 | /* Report a write error; see above */ |
| 4555 | show_print_file_io_error(); |
| 4556 | return PROCESS_PACKET_PRINT_ERROR; |
| 4557 | } |
| 4558 | } |
| 4559 | } |
| 4560 | |
| 4561 | /* this must be set after print_packet() [bug #8160] */ |
| 4562 | prev_dis_frame = fdata; |
| 4563 | cf->provider.prev_dis = &prev_dis_frame; |
| 4564 | } |
| 4565 | |
| 4566 | prev_cap_frame = fdata; |
| 4567 | cf->provider.prev_cap = &prev_cap_frame; |
| 4568 | |
| 4569 | if (edt) { |
| 4570 | epan_dissect_reset(edt); |
| 4571 | frame_data_destroy(&fdata); |
| 4572 | rec->block = block; |
| 4573 | } |
| 4574 | return passed ? PROCESS_PACKET_PASSED : PROCESS_PACKET_DIDNT_PASS; |
| 4575 | } |
| 4576 | |
| 4577 | static bool_Bool |
| 4578 | write_preamble(capture_file *cf) |
| 4579 | { |
| 4580 | switch (output_action) { |
| 4581 | |
| 4582 | case WRITE_TEXT: |
| 4583 | return print_preamble(print_stream, cf->filename, application_get_vcs_version_info()); |
| 4584 | |
| 4585 | case WRITE_XML: |
| 4586 | if (print_details) |
| 4587 | write_pdml_preamble(stdoutstdout, cf->filename, get_doc_dir(application_configuration_environment_prefix())); |
| 4588 | else |
| 4589 | write_psml_preamble(&cf->cinfo, stdoutstdout); |
| 4590 | return !ferror(stdoutstdout); |
| 4591 | |
| 4592 | case WRITE_FIELDS: |
| 4593 | write_fields_preamble(output_fields, stdoutstdout); |
| 4594 | return !ferror(stdoutstdout); |
| 4595 | |
| 4596 | case WRITE_JSON: |
| 4597 | case WRITE_JSON_RAW: |
| 4598 | jdumper = write_json_preamble(stdoutstdout); |
| 4599 | return !ferror(stdoutstdout); |
| 4600 | |
| 4601 | case WRITE_EK: |
| 4602 | return true1; |
| 4603 | |
| 4604 | default: |
| 4605 | ws_assert_not_reached()ws_log_fatal_full("Main", LOG_LEVEL_ERROR, "tshark.c", 4605, __func__ , "assertion \"not reached\" failed"); |
| 4606 | return false0; |
| 4607 | } |
| 4608 | } |
| 4609 | |
| 4610 | static char * |
| 4611 | get_line_buf(size_t len) |
| 4612 | { |
| 4613 | static char *line_bufp = NULL((void*)0); |
| 4614 | static size_t line_buf_len = 256; |
| 4615 | size_t new_line_buf_len; |
| 4616 | |
| 4617 | for (new_line_buf_len = line_buf_len; len > new_line_buf_len; |
| 4618 | new_line_buf_len *= 2) |
| 4619 | ; |
| 4620 | if (line_bufp == NULL((void*)0)) { |
| 4621 | line_buf_len = new_line_buf_len; |
| 4622 | line_bufp = (char *)g_malloc(line_buf_len + 1); |
| 4623 | } else { |
| 4624 | if (new_line_buf_len > line_buf_len) { |
| 4625 | line_buf_len = new_line_buf_len; |
| 4626 | line_bufp = (char *)g_realloc(line_bufp, line_buf_len + 1); |
| 4627 | } |
| 4628 | } |
| 4629 | return line_bufp; |
| 4630 | } |
| 4631 | |
| 4632 | static inline void |
| 4633 | put_string(char *dest, const char *str, size_t str_len) |
| 4634 | { |
| 4635 | memcpy(dest, str, str_len); |
| 4636 | dest[str_len] = '\0'; |
| 4637 | } |
| 4638 | |
| 4639 | static inline void |
| 4640 | put_spaces_string(char *dest, const char *str, size_t str_len, size_t str_with_spaces) |
| 4641 | { |
| 4642 | size_t i; |
| 4643 | |
| 4644 | for (i = str_len; i < str_with_spaces; i++) |
| 4645 | *dest++ = ' '; |
| 4646 | |
| 4647 | put_string(dest, str, str_len); |
| 4648 | } |
| 4649 | |
| 4650 | static inline void |
| 4651 | put_string_spaces(char *dest, const char *str, size_t str_len, size_t str_with_spaces) |
| 4652 | { |
| 4653 | size_t i; |
| 4654 | |
| 4655 | memcpy(dest, str, str_len); |
| 4656 | for (i = str_len; i < str_with_spaces; i++) |
| 4657 | dest[i] = ' '; |
| 4658 | |
| 4659 | dest[str_with_spaces] = '\0'; |
| 4660 | } |
| 4661 | |
| 4662 | static bool_Bool |
| 4663 | print_columns(capture_file *cf, const epan_dissect_t *edt) |
| 4664 | { |
| 4665 | char *line_bufp; |
| 4666 | unsigned i; |
| 4667 | size_t buf_offset; |
| 4668 | size_t column_len; |
| 4669 | size_t col_len; |
| 4670 | col_item_t* col_item; |
| 4671 | char str_format[11]; |
| 4672 | const color_filter_t *color_filter = NULL((void*)0); |
| 4673 | |
| 4674 | line_bufp = get_line_buf(256); |
| 4675 | buf_offset = 0; |
| 4676 | *line_bufp = '\0'; |
| 4677 | |
| 4678 | if (dissect_color) |
| 4679 | color_filter = edt->pi.fd->color_filter; |
| 4680 | |
| 4681 | for (i = 0; i < cf->cinfo.num_cols; i++) { |
| 4682 | col_item = &cf->cinfo.columns[i]; |
| 4683 | /* Skip columns not marked as visible. */ |
| 4684 | if (!get_column_visible(i)) |
| 4685 | continue; |
| 4686 | const char* col_text = get_column_text(&cf->cinfo, i); |
| 4687 | switch (col_item->col_fmt) { |
| 4688 | case COL_NUMBER: |
| 4689 | case COL_NUMBER_DIS: |
| 4690 | column_len = col_len = strlen(col_text); |
| 4691 | if (column_len < 5) |
| 4692 | column_len = 5; |
| 4693 | line_bufp = get_line_buf(buf_offset + column_len); |
| 4694 | put_spaces_string(line_bufp + buf_offset, col_text, col_len, column_len); |
| 4695 | break; |
| 4696 | |
| 4697 | case COL_CLS_TIME: |
| 4698 | case COL_REL_TIME: |
| 4699 | case COL_ABS_TIME: |
| 4700 | case COL_ABS_YMD_TIME: /* XXX - wider */ |
| 4701 | case COL_ABS_YDOY_TIME: /* XXX - wider */ |
| 4702 | case COL_UTC_TIME: |
| 4703 | case COL_UTC_YMD_TIME: /* XXX - wider */ |
| 4704 | case COL_UTC_YDOY_TIME: /* XXX - wider */ |
| 4705 | column_len = col_len = strlen(col_text); |
| 4706 | if (column_len < 10) |
| 4707 | column_len = 10; |
| 4708 | line_bufp = get_line_buf(buf_offset + column_len); |
| 4709 | put_spaces_string(line_bufp + buf_offset, col_text, col_len, column_len); |
| 4710 | break; |
| 4711 | |
| 4712 | case COL_DEF_SRC: |
| 4713 | case COL_RES_SRC: |
| 4714 | case COL_UNRES_SRC: |
| 4715 | case COL_DEF_DL_SRC: |
| 4716 | case COL_RES_DL_SRC: |
| 4717 | case COL_UNRES_DL_SRC: |
| 4718 | case COL_DEF_NET_SRC: |
| 4719 | case COL_RES_NET_SRC: |
| 4720 | case COL_UNRES_NET_SRC: |
| 4721 | column_len = col_len = strlen(col_text); |
| 4722 | if (column_len < 12) |
| 4723 | column_len = 12; |
| 4724 | line_bufp = get_line_buf(buf_offset + column_len); |
| 4725 | put_spaces_string(line_bufp + buf_offset, col_text, col_len, column_len); |
| 4726 | break; |
| 4727 | |
| 4728 | case COL_DEF_DST: |
| 4729 | case COL_RES_DST: |
| 4730 | case COL_UNRES_DST: |
| 4731 | case COL_DEF_DL_DST: |
| 4732 | case COL_RES_DL_DST: |
| 4733 | case COL_UNRES_DL_DST: |
| 4734 | case COL_DEF_NET_DST: |
| 4735 | case COL_RES_NET_DST: |
| 4736 | case COL_UNRES_NET_DST: |
| 4737 | column_len = col_len = strlen(col_text); |
| 4738 | if (column_len < 12) |
| 4739 | column_len = 12; |
| 4740 | line_bufp = get_line_buf(buf_offset + column_len); |
| 4741 | put_string_spaces(line_bufp + buf_offset, col_text, col_len, column_len); |
| 4742 | break; |
| 4743 | |
| 4744 | default: |
| 4745 | column_len = strlen(col_text); |
| 4746 | line_bufp = get_line_buf(buf_offset + column_len); |
| 4747 | put_string(line_bufp + buf_offset, col_text, column_len); |
| 4748 | break; |
| 4749 | } |
| 4750 | buf_offset += column_len; |
| 4751 | if (i != cf->cinfo.num_cols - 1) { |
| 4752 | /* |
| 4753 | * This isn't the last column, so we need to print a |
| 4754 | * separator between this column and the next. |
| 4755 | * |
| 4756 | * If we printed a network source and are printing a |
| 4757 | * network destination of the same type next, separate |
| 4758 | * them with a UTF-8 right arrow; if we printed a network |
| 4759 | * destination and are printing a network source of the same |
| 4760 | * type next, separate them with a UTF-8 left arrow; |
| 4761 | * otherwise separate them with a space. |
| 4762 | * |
| 4763 | * We add enough space to the buffer for " \xe2\x86\x90 " |
| 4764 | * or " \xe2\x86\x92 ", even if we're only adding " ". |
| 4765 | */ |
| 4766 | line_bufp = get_line_buf(buf_offset + 5); |
| 4767 | switch (col_item->col_fmt) { |
| 4768 | |
| 4769 | case COL_DEF_SRC: |
| 4770 | case COL_RES_SRC: |
| 4771 | case COL_UNRES_SRC: |
| 4772 | switch (cf->cinfo.columns[i+1].col_fmt) { |
| 4773 | |
| 4774 | case COL_DEF_DST: |
| 4775 | case COL_RES_DST: |
| 4776 | case COL_UNRES_DST: |
| 4777 | snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW"\u2192", delimiter_char); |
| 4778 | put_string(line_bufp + buf_offset, str_format, 5); |
| 4779 | buf_offset += 5; |
| 4780 | break; |
| 4781 | |
| 4782 | default: |
| 4783 | put_string(line_bufp + buf_offset, delimiter_char, 1); |
| 4784 | buf_offset += 1; |
| 4785 | break; |
| 4786 | } |
| 4787 | break; |
| 4788 | |
| 4789 | case COL_DEF_DL_SRC: |
| 4790 | case COL_RES_DL_SRC: |
| 4791 | case COL_UNRES_DL_SRC: |
| 4792 | switch (cf->cinfo.columns[i+1].col_fmt) { |
| 4793 | |
| 4794 | case COL_DEF_DL_DST: |
| 4795 | case COL_RES_DL_DST: |
| 4796 | case COL_UNRES_DL_DST: |
| 4797 | snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW"\u2192", delimiter_char); |
| 4798 | put_string(line_bufp + buf_offset, str_format, 5); |
| 4799 | buf_offset += 5; |
| 4800 | break; |
| 4801 | |
| 4802 | default: |
| 4803 | put_string(line_bufp + buf_offset, delimiter_char, 1); |
| 4804 | buf_offset += 1; |
| 4805 | break; |
| 4806 | } |
| 4807 | break; |
| 4808 | |
| 4809 | case COL_DEF_NET_SRC: |
| 4810 | case COL_RES_NET_SRC: |
| 4811 | case COL_UNRES_NET_SRC: |
| 4812 | switch (cf->cinfo.columns[i+1].col_fmt) { |
| 4813 | |
| 4814 | case COL_DEF_NET_DST: |
| 4815 | case COL_RES_NET_DST: |
| 4816 | case COL_UNRES_NET_DST: |
| 4817 | snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW"\u2192", delimiter_char); |
| 4818 | put_string(line_bufp + buf_offset, str_format, 5); |
| 4819 | buf_offset += 5; |
| 4820 | break; |
| 4821 | |
| 4822 | default: |
| 4823 | put_string(line_bufp + buf_offset, delimiter_char, 1); |
| 4824 | buf_offset += 1; |
| 4825 | break; |
| 4826 | } |
| 4827 | break; |
| 4828 | |
| 4829 | case COL_DEF_DST: |
| 4830 | case COL_RES_DST: |
| 4831 | case COL_UNRES_DST: |
| 4832 | switch (cf->cinfo.columns[i+1].col_fmt) { |
| 4833 | |
| 4834 | case COL_DEF_SRC: |
| 4835 | case COL_RES_SRC: |
| 4836 | case COL_UNRES_SRC: |
| 4837 | snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW"\u2190", delimiter_char); |
| 4838 | put_string(line_bufp + buf_offset, str_format, 5); |
| 4839 | buf_offset += 5; |
| 4840 | break; |
| 4841 | |
| 4842 | default: |
| 4843 | put_string(line_bufp + buf_offset, delimiter_char, 1); |
| 4844 | buf_offset += 1; |
| 4845 | break; |
| 4846 | } |
| 4847 | break; |
| 4848 | |
| 4849 | case COL_DEF_DL_DST: |
| 4850 | case COL_RES_DL_DST: |
| 4851 | case COL_UNRES_DL_DST: |
| 4852 | switch (cf->cinfo.columns[i+1].col_fmt) { |
| 4853 | |
| 4854 | case COL_DEF_DL_SRC: |
| 4855 | case COL_RES_DL_SRC: |
| 4856 | case COL_UNRES_DL_SRC: |
| 4857 | snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW"\u2190", delimiter_char); |
| 4858 | put_string(line_bufp + buf_offset, str_format, 5); |
| 4859 | buf_offset += 5; |
| 4860 | break; |
| 4861 | |
| 4862 | default: |
| 4863 | put_string(line_bufp + buf_offset, delimiter_char, 1); |
| 4864 | buf_offset += 1; |
| 4865 | break; |
| 4866 | } |
| 4867 | break; |
| 4868 | |
| 4869 | case COL_DEF_NET_DST: |
| 4870 | case COL_RES_NET_DST: |
| 4871 | case COL_UNRES_NET_DST: |
| 4872 | switch (cf->cinfo.columns[i+1].col_fmt) { |
| 4873 | |
| 4874 | case COL_DEF_NET_SRC: |
| 4875 | case COL_RES_NET_SRC: |
| 4876 | case COL_UNRES_NET_SRC: |
| 4877 | snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW"\u2190", delimiter_char); |
| 4878 | put_string(line_bufp + buf_offset, str_format, 5); |
| 4879 | buf_offset += 5; |
| 4880 | break; |
| 4881 | |
| 4882 | default: |
| 4883 | put_string(line_bufp + buf_offset, delimiter_char, 1); |
| 4884 | buf_offset += 1; |
| 4885 | break; |
| 4886 | } |
| 4887 | break; |
| 4888 | |
| 4889 | default: |
| 4890 | put_string(line_bufp + buf_offset, delimiter_char, 1); |
| 4891 | buf_offset += 1; |
| 4892 | break; |
| 4893 | } |
| 4894 | } |
| 4895 | } |
| 4896 | |
| 4897 | if (dissect_color && color_filter != NULL((void*)0)) |
| 4898 | return print_line_color(print_stream, 0, line_bufp, &color_filter->fg_color, &color_filter->bg_color); |
| 4899 | else |
| 4900 | return print_line(print_stream, 0, line_bufp); |
| 4901 | } |
| 4902 | |
| 4903 | static bool_Bool |
| 4904 | print_packet(capture_file *cf, epan_dissect_t *edt) |
| 4905 | { |
| 4906 | if (print_summary || output_fields_has_cols(output_fields)) |
| 4907 | /* Just fill in the columns. */ |
| 4908 | epan_dissect_fill_in_columns(edt, false0, true1); |
| 4909 | |
| 4910 | /* Print summary columns and/or protocol tree */ |
| 4911 | switch (output_action) { |
| 4912 | |
| 4913 | case WRITE_TEXT: |
| 4914 | if (print_summary && !print_columns(cf, edt)) |
| 4915 | return false0; |
| 4916 | if (print_details) { |
| 4917 | if (!proto_tree_print(print_details ? print_dissections_expanded : print_dissections_none, |
| 4918 | print_hex, edt, output_only_tables, print_stream)) |
| 4919 | return false0; |
| 4920 | if (!print_hex) { |
| 4921 | if (!print_line(print_stream, 0, separator)) |
| 4922 | return false0; |
| 4923 | } |
| 4924 | } |
| 4925 | break; |
| 4926 | |
| 4927 | case WRITE_XML: |
| 4928 | if (print_summary) { |
| 4929 | write_psml_columns(edt, stdoutstdout, dissect_color); |
| 4930 | return !ferror(stdoutstdout); |
| 4931 | } |
| 4932 | if (print_details) { |
| 4933 | write_pdml_proto_tree(output_fields, edt, &cf->cinfo, stdoutstdout, dissect_color); |
| 4934 | printf("\n"); |
| 4935 | return !ferror(stdoutstdout); |
| 4936 | } |
| 4937 | break; |
| 4938 | |
| 4939 | case WRITE_FIELDS: |
| 4940 | if (print_summary) { |
| 4941 | /*No non-verbose "fields" format */ |
| 4942 | ws_assert_not_reached()ws_log_fatal_full("Main", LOG_LEVEL_ERROR, "tshark.c", 4942, __func__ , "assertion \"not reached\" failed"); |
| 4943 | } |
| 4944 | if (print_details) { |
| 4945 | write_fields_proto_tree(output_fields, edt, &cf->cinfo, stdoutstdout); |
| 4946 | printf("\n"); |
| 4947 | return !ferror(stdoutstdout); |
| 4948 | } |
| 4949 | break; |
| 4950 | |
| 4951 | case WRITE_JSON: |
| 4952 | if (print_summary) |
| 4953 | ws_assert_not_reached()ws_log_fatal_full("Main", LOG_LEVEL_ERROR, "tshark.c", 4953, __func__ , "assertion \"not reached\" failed"); |
| 4954 | if (print_details) { |
| 4955 | write_json_proto_tree(output_fields, print_dissections_expanded, |
| 4956 | print_hex, edt, &cf->cinfo, node_children_grouper, &jdumper); |
| 4957 | return !ferror(stdoutstdout); |
| 4958 | } |
| 4959 | break; |
| 4960 | |
| 4961 | case WRITE_JSON_RAW: |
| 4962 | if (print_summary) |
| 4963 | ws_assert_not_reached()ws_log_fatal_full("Main", LOG_LEVEL_ERROR, "tshark.c", 4963, __func__ , "assertion \"not reached\" failed"); |
| 4964 | if (print_details) { |
| 4965 | write_json_proto_tree(output_fields, print_dissections_none, |
| 4966 | true1, edt, &cf->cinfo, node_children_grouper, &jdumper); |
| 4967 | return !ferror(stdoutstdout); |
| 4968 | } |
| 4969 | break; |
| 4970 | |
| 4971 | case WRITE_EK: |
| 4972 | write_ek_proto_tree(output_fields, print_summary, print_hex, |
| 4973 | edt, &cf->cinfo, stdoutstdout); |
| 4974 | return !ferror(stdoutstdout); |
| 4975 | |
| 4976 | default: |
| 4977 | ws_assert_not_reached()ws_log_fatal_full("Main", LOG_LEVEL_ERROR, "tshark.c", 4977, __func__ , "assertion \"not reached\" failed"); |
| 4978 | } |
| 4979 | |
| 4980 | if (print_hex) { |
| 4981 | if (print_summary || print_details) { |
| 4982 | if (!print_line(print_stream, 0, "")) |
| 4983 | return false0; |
| 4984 | } |
| 4985 | if (!print_hex_data(print_stream, edt, hexdump_source_option | hexdump_ascii_option | hexdump_timestamp_option)) |
| 4986 | return false0; |
| 4987 | if (!print_line(print_stream, 0, separator)) |
| 4988 | return false0; |
| 4989 | } |
| 4990 | return true1; |
| 4991 | } |
| 4992 | |
| 4993 | static bool_Bool |
| 4994 | write_finale(void) |
| 4995 | { |
| 4996 | switch (output_action) { |
| 4997 | |
| 4998 | case WRITE_TEXT: |
| 4999 | return print_finale(print_stream); |
| 5000 | |
| 5001 | case WRITE_XML: |
| 5002 | if (print_details) |
| 5003 | write_pdml_finale(stdoutstdout); |
| 5004 | else |
| 5005 | write_psml_finale(stdoutstdout); |
| 5006 | return !ferror(stdoutstdout); |
| 5007 | |
| 5008 | case WRITE_FIELDS: |
| 5009 | write_fields_finale(output_fields, stdoutstdout); |
| 5010 | return !ferror(stdoutstdout); |
| 5011 | |
| 5012 | case WRITE_JSON: |
| 5013 | case WRITE_JSON_RAW: |
| 5014 | write_json_finale(&jdumper); |
| 5015 | return !ferror(stdoutstdout); |
| 5016 | |
| 5017 | case WRITE_EK: |
| 5018 | return true1; |
| 5019 | |
| 5020 | default: |
| 5021 | ws_assert_not_reached()ws_log_fatal_full("Main", LOG_LEVEL_ERROR, "tshark.c", 5021, __func__ , "assertion \"not reached\" failed"); |
| 5022 | return false0; |
| 5023 | } |
| 5024 | } |
| 5025 | |
| 5026 | void |
| 5027 | cf_close(capture_file *cf) |
| 5028 | { |
| 5029 | if (cf->state == FILE_CLOSED) |
| 5030 | return; /* Nothing to do */ |
| 5031 | |
| 5032 | if (cf->provider.wth != NULL((void*)0)) { |
| 5033 | wtap_close(cf->provider.wth); |
| 5034 | cf->provider.wth = NULL((void*)0); |
| 5035 | } |
| 5036 | /* We have no file open... */ |
| 5037 | if (cf->filename != NULL((void*)0)) { |
| 5038 | /* If it's a temporary file, remove it. */ |
| 5039 | if (cf->is_tempfile) |
| 5040 | ws_unlinkunlink(cf->filename); |
| 5041 | g_free(cf->filename); |
| 5042 | cf->filename = NULL((void*)0); |
| 5043 | } |
| 5044 | |
| 5045 | /* We have no file open. */ |
| 5046 | cf->state = FILE_CLOSED; |
| 5047 | } |
| 5048 | |
| 5049 | cf_status_t |
| 5050 | cf_open(capture_file *cf, const char *fname, unsigned int type, bool_Bool is_tempfile, int *err) |
| 5051 | { |
| 5052 | wtap *wth; |
| 5053 | char *err_info; |
| 5054 | |
| 5055 | wth = wtap_open_offline(fname, type, err, &err_info, perform_two_pass_analysis, application_configuration_environment_prefix()); |
| 5056 | if (wth == NULL((void*)0)) |
| 5057 | goto fail; |
| 5058 | |
| 5059 | /* The open succeeded. Fill in the information for this file. */ |
| 5060 | |
| 5061 | cf->provider.wth = wth; |
| 5062 | cf->f_datalen = 0; /* not used, but set it anyway */ |
| 5063 | |
| 5064 | /* Set the file name because we need it to set the follow stream filter. |
| 5065 | XXX - is that still true? We need it for other reasons, though, |
| 5066 | in any case. */ |
| 5067 | cf->filename = g_strdup(fname)g_strdup_inline (fname); |
| 5068 | |
| 5069 | /* Indicate whether it's a permanent or temporary file. */ |
| 5070 | cf->is_tempfile = is_tempfile; |
| 5071 | |
| 5072 | /* No user changes yet. */ |
| 5073 | cf->unsaved_changes = false0; |
| 5074 | |
| 5075 | cf->cd_t = wtap_file_type_subtype(cf->provider.wth); |
| 5076 | cf->open_type = type; |
| 5077 | cf->count = 0; |
| 5078 | cf->drops_known = false0; |
| 5079 | cf->drops = 0; |
| 5080 | cf->snap = wtap_snapshot_length(cf->provider.wth); |
| 5081 | nstime_set_zero(&cf->elapsed_time); |
| 5082 | cf->provider.ref = NULL((void*)0); |
| 5083 | cf->provider.prev_dis = NULL((void*)0); |
| 5084 | cf->provider.prev_cap = NULL((void*)0); |
| 5085 | |
| 5086 | cf->state = FILE_READ_IN_PROGRESS; |
| 5087 | |
| 5088 | /* Create new epan session for dissection. */ |
| 5089 | epan_free(cf->epan); |
| 5090 | cf->epan = tshark_epan_new(cf); |
| 5091 | |
| 5092 | wtap_set_cb_new_ipv4(cf->provider.wth, add_ipv4_name); |
| 5093 | wtap_set_cb_new_ipv6(cf->provider.wth, (wtap_new_ipv6_callback_t) add_ipv6_name); |
| 5094 | wtap_set_cb_new_secrets(cf->provider.wth, secrets_wtap_callback); |
| 5095 | |
| 5096 | return CF_OK; |
| 5097 | |
| 5098 | fail: |
| 5099 | report_cfile_open_failure(fname, *err, err_info); |
| 5100 | return CF_ERROR; |
| 5101 | } |
| 5102 | |
| 5103 | static void |
| 5104 | show_print_file_io_error(void) |
| 5105 | { |
| 5106 | switch (errno(*__errno_location ())) { |
| 5107 | |
| 5108 | case ENOSPC28: |
| 5109 | cmdarg_err("Not all the packets could be printed because there is " |
| 5110 | "no space left on the file system."); |
| 5111 | break; |
| 5112 | |
| 5113 | #ifdef EDQUOT122 |
| 5114 | case EDQUOT122: |
| 5115 | cmdarg_err("Not all the packets could be printed because you are " |
| 5116 | "too close to, or over your disk quota."); |
| 5117 | break; |
| 5118 | #endif |
| 5119 | |
| 5120 | case EPIPE32: |
| 5121 | /* |
| 5122 | * This almost certainly means "the next program after us in |
| 5123 | * the pipeline exited before we were finished writing", so |
| 5124 | * this isn't a real error, it just means we're done. (We |
| 5125 | * don't get SIGPIPE because libwireshark ignores SIGPIPE |
| 5126 | * to avoid getting killed if writing to the MaxMind process |
| 5127 | * gets SIGPIPE because that process died.) |
| 5128 | * |
| 5129 | * Presumably either that program exited deliberately (for |
| 5130 | * example, "head -N" read N lines and printed them), in |
| 5131 | * which case there's no error to report, or it terminated |
| 5132 | * due to an error or a signal, in which case *that's* the |
| 5133 | * error and that error has been reported. |
| 5134 | */ |
| 5135 | break; |
| 5136 | |
| 5137 | default: |
| 5138 | #ifdef _WIN32 |
| 5139 | if (errno(*__errno_location ()) == EINVAL22 && _doserrno == ERROR_NO_DATA) { |
| 5140 | /* |
| 5141 | * XXX - on Windows, a write to a pipe where the read side |
| 5142 | * has been closed apparently may return the Windows error |
| 5143 | * ERROR_BROKEN_PIPE, which the Visual Studio C library maps |
| 5144 | * to EPIPE, or may return the Windows error ERROR_NO_DATA, |
| 5145 | * which the Visual Studio C library maps to EINVAL. |
| 5146 | * |
| 5147 | * Either of those almost certainly means "the next program |
| 5148 | * after us in the pipeline exited before we were finished |
| 5149 | * writing", so, if _doserrno is ERROR_NO_DATA, this isn't |
| 5150 | * a real error, it just means we're done. (Windows doesn't |
| 5151 | * SIGPIPE.) |
| 5152 | * |
| 5153 | * Presumably either that program exited deliberately (for |
| 5154 | * example, "head -N" read N lines and printed them), in |
| 5155 | * which case there's no error to report, or it terminated |
| 5156 | * due to an error or a signal, in which case *that's* the |
| 5157 | * error and that error has been reported. |
| 5158 | */ |
| 5159 | break; |
| 5160 | } |
| 5161 | |
| 5162 | /* |
| 5163 | * It's a different error; report it, but with the error |
| 5164 | * message for _doserrno, which will give more detail |
| 5165 | * than just "Invalid argument". |
| 5166 | */ |
| 5167 | cmdarg_err("An error occurred while printing packets: %s.", |
| 5168 | win32strerror(_doserrno)); |
| 5169 | #else |
| 5170 | cmdarg_err("An error occurred while printing packets: %s.", |
| 5171 | g_strerror(errno(*__errno_location ()))); |
| 5172 | #endif |
| 5173 | break; |
| 5174 | } |
| 5175 | } |
| 5176 | |
| 5177 | static void |
| 5178 | reset_epan_mem(capture_file *cf,epan_dissect_t *edt, bool_Bool tree, bool_Bool visual) |
| 5179 | { |
| 5180 | if (!epan_auto_reset || (cf->count < epan_auto_reset_count) || !edt) |
| 5181 | return; |
| 5182 | |
| 5183 | fprintf(stderrstderr, "resetting session.\n"); |
| 5184 | |
| 5185 | epan_dissect_cleanup(edt); |
| 5186 | epan_free(cf->epan); |
| 5187 | |
| 5188 | cf->epan = tshark_epan_new(cf); |
| 5189 | epan_dissect_init(edt, cf->epan, tree, visual); |
| 5190 | cf->count = 0; |
| 5191 | } |