diff options
Diffstat (limited to 'capinfos.c')
| -rw-r--r-- | capinfos.c | 1795 |
1 files changed, 1795 insertions, 0 deletions
diff --git a/capinfos.c b/capinfos.c new file mode 100644 index 00000000..286532d0 --- /dev/null +++ b/capinfos.c @@ -0,0 +1,1795 @@ +/* capinfos.c + * Reports capture file information including # of packets, duration, others + * + * Copyright 2004 Ian Schorr + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +/* + * 2009-09-19: jyoung + * + * New capinfos features + * + * Continue processing additional files after + * a wiretap open failure. The new -C option + * reverts to capinfos' original behavior which + * is to cancel any further file processing at + * first file open failure. + * + * Change the behavior of how the default display + * of all infos is initiated. This gets rid of a + * special post getopt() argument count test. + * + * Add new table output format (with related options) + * This feature allows outputting the various infos + * into a tab delimited text file, or to a comma + * separated variables file (*.csv) instead of the + * original "long" format. + * + * 2011-04-05: wmeier + * behaviour changed: Upon exit capinfos will return + * an error status if an error occurred at any + * point during "continuous" file processing. + * (Previously a success status was always + * returned if the -C option was not used). + * + */ + + +#include <config.h> +#define WS_LOG_DOMAIN LOG_DOMAIN_MAIN + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <locale.h> + +#include <ws_exit_codes.h> +#include <wsutil/ws_getopt.h> + +#include <glib.h> + +#include <wiretap/wtap.h> + +#include <wsutil/cmdarg_err.h> +#include <wsutil/filesystem.h> +#include <wsutil/privileges.h> +#include <cli_main.h> +#include <wsutil/version_info.h> +#include <wiretap/wtap_opttypes.h> + +#ifdef HAVE_PLUGINS +#include <wsutil/plugins.h> +#endif + +#include <wsutil/report_message.h> +#include <wsutil/str_util.h> +#include <wsutil/to_str.h> +#include <wsutil/file_util.h> +#include <wsutil/ws_assert.h> +#include <wsutil/wslog.h> + +#include <gcrypt.h> + +#include "ui/failure_message.h" + +/* + * By default capinfos now continues processing + * the next filename if and when wiretap detects + * a problem opening or reading a file. + * Use the '-C' option to revert back to original + * capinfos behavior which is to abort any + * additional file processing at the first file + * open or read failure. + */ + +static gboolean stop_after_failure = FALSE; + +/* + * table report variables + */ + +static gboolean long_report = TRUE; /* By default generate long report */ +static gchar table_report_header = TRUE; /* Generate column header by default */ +static gchar field_separator = '\t'; /* Use TAB as field separator by default */ +static gchar quote_char = '\0'; /* Do NOT quote fields by default */ +static gboolean machine_readable = FALSE; /* Display machine-readable numbers */ + +/* + * capinfos has the ability to report on a number of + * various characteristics ("infos") for each input file. + * + * By default reporting of all info fields is enabled. + * + * Optionally the reporting of any specific info field + * or combination of info fields can be enabled with + * individual options. + */ + +static gboolean report_all_infos = TRUE; /* Report all infos */ + +static gboolean cap_file_type = TRUE; /* Report capture type */ +static gboolean cap_file_encap = TRUE; /* Report encapsulation */ +static gboolean cap_snaplen = TRUE; /* Packet size limit (snaplen)*/ +static gboolean cap_packet_count = TRUE; /* Report packet count */ +static gboolean cap_file_size = TRUE; /* Report file size */ +static gboolean cap_comment = TRUE; /* Display the capture comment */ +static gboolean cap_file_more_info = TRUE; /* Report more file info */ +static gboolean cap_file_idb = TRUE; /* Report Interface info */ +static gboolean cap_file_nrb = TRUE; /* Report Name Resolution Block info */ +static gboolean cap_file_dsb = TRUE; /* Report Decryption Secrets Block info */ + +static gboolean cap_data_size = TRUE; /* Report packet byte size */ +static gboolean cap_duration = TRUE; /* Report capture duration */ +static gboolean cap_start_time = TRUE; /* Report capture start time */ +static gboolean cap_end_time = TRUE; /* Report capture end time */ +static gboolean time_as_secs = FALSE; /* Report time values as raw seconds */ + +static gboolean cap_data_rate_byte = TRUE; /* Report data rate bytes/sec */ +static gboolean cap_data_rate_bit = TRUE; /* Report data rate bites/sec */ +static gboolean cap_packet_size = TRUE; /* Report average packet size */ +static gboolean cap_packet_rate = TRUE; /* Report average packet rate */ +static gboolean cap_order = TRUE; /* Report if packets are in chronological order (True/False) */ +static gboolean pkt_comments = TRUE; /* Report individual packet comments */ + +static gboolean cap_file_hashes = TRUE; /* Calculate file hashes */ + +// Strongest to weakest +#define HASH_SIZE_SHA256 32 +#define HASH_SIZE_SHA1 20 + +#define HASH_STR_SIZE (65) /* Max hash size * 2 + '\0' */ +#define HASH_BUF_SIZE (1024 * 1024) + + +static gchar file_sha256[HASH_STR_SIZE]; +static gchar file_sha1[HASH_STR_SIZE]; + +static char *hash_buf = NULL; +static gcry_md_hd_t hd = NULL; + +static guint num_ipv4_addresses; +static guint num_ipv6_addresses; +static guint num_decryption_secrets; + +/* + * If we have at least two packets with time stamps, and they're not in + * order - i.e., the later packet has a time stamp older than the earlier + * packet - the time stamps are known not to be in order. + * + * If every packet has a time stamp, and they're all in order, the time + * stamp is known to be in order. + * + * Otherwise, we have no idea. + */ +typedef enum { + IN_ORDER, + NOT_IN_ORDER, + ORDER_UNKNOWN +} order_t; + +typedef struct _pkt_cmt { + int recno; + gchar *cmt; + struct _pkt_cmt *next; +} pkt_cmt; + +typedef struct _capture_info { + const char *filename; + guint16 file_type; + wtap_compression_type compression_type; + int file_encap; + int file_tsprec; + wtap *wth; + gint64 filesize; + guint64 packet_bytes; + gboolean times_known; + nstime_t start_time; + int start_time_tsprec; + nstime_t stop_time; + int stop_time_tsprec; + guint32 packet_count; + gboolean snap_set; /* If set in capture file header */ + guint32 snaplen; /* value from the capture file header */ + guint32 snaplen_min_inferred; /* If caplen < len for 1 or more rcds */ + guint32 snaplen_max_inferred; /* ... */ + gboolean drops_known; + guint32 drop_count; + + nstime_t duration; + int duration_tsprec; + double packet_rate; + double packet_size; + double data_rate; /* in bytes/s */ + gboolean know_order; + order_t order; + + int *encap_counts; /* array of per_packet encap counts; array has one entry per wtap_encap type */ + pkt_cmt *pkt_cmts; /* list of packet comments */ + + guint num_interfaces; /* number of IDBs, and thus size of interface_packet_counts array */ + GArray *interface_packet_counts; /* array of per_packet interface_id counts; one entry per file IDB */ + guint32 pkt_interface_id_unknown; /* counts if packet interface_id didn't match a known one */ + GArray *idb_info_strings; /* array of IDB info strings */ +} capture_info; + +static char *decimal_point; + +static void +enable_all_infos(void) +{ + report_all_infos = TRUE; + + cap_file_type = TRUE; + cap_file_encap = TRUE; + cap_snaplen = TRUE; + cap_packet_count = TRUE; + cap_file_size = TRUE; + cap_comment = TRUE; + pkt_comments = TRUE; + cap_file_more_info = TRUE; + cap_file_idb = TRUE; + cap_file_nrb = TRUE; + cap_file_dsb = TRUE; + + cap_data_size = TRUE; + cap_duration = TRUE; + cap_start_time = TRUE; + cap_end_time = TRUE; + cap_order = TRUE; + + cap_data_rate_byte = TRUE; + cap_data_rate_bit = TRUE; + cap_packet_size = TRUE; + cap_packet_rate = TRUE; + + cap_file_hashes = TRUE; +} + +static void +disable_all_infos(void) +{ + report_all_infos = FALSE; + + cap_file_type = FALSE; + cap_file_encap = FALSE; + cap_snaplen = FALSE; + cap_packet_count = FALSE; + cap_file_size = FALSE; + cap_comment = FALSE; + pkt_comments = FALSE; + cap_file_more_info = FALSE; + cap_file_idb = FALSE; + cap_file_nrb = FALSE; + cap_file_dsb = FALSE; + + cap_data_size = FALSE; + cap_duration = FALSE; + cap_start_time = FALSE; + cap_end_time = FALSE; + cap_order = FALSE; + + cap_data_rate_byte = FALSE; + cap_data_rate_bit = FALSE; + cap_packet_size = FALSE; + cap_packet_rate = FALSE; + + cap_file_hashes = FALSE; +} + +static const gchar * +order_string(order_t order) +{ + switch (order) { + + case IN_ORDER: + return "True"; + + case NOT_IN_ORDER: + return "False"; + + case ORDER_UNKNOWN: + return "Unknown"; + + default: + return "???"; /* "cannot happen" (the next step is "Profit!") */ + } +} + +static gchar * +absolute_time_string(nstime_t *timer, int tsprecision, capture_info *cf_info) +{ + /* + * https://web.archive.org/web/20120513133703/http://www.idrbt.ac.in/publications/workingpapers/Working%20Paper%20No.%209.pdf + * + * says: + * + * A 64-bit Unix time would be safe for the indefinite future, as + * this variable would not overflow until 2**63 or + * 9,223,372,036,854,775,808 (over nine quintillion) seconds + * after the beginning of the Unix epoch - corresponding to + * GMT 15:30:08, Sunday, 4th December, 292,277,026,596. + * + * So, if we're displaying the time as YYYY-MM-DD HH:MM:SS.SSSSSSSSS, + * we'll have the buffer be large enough for a date of the format + * 292277026596-MM-DD HH:MM:SS.SSSSSSSSS, which is the biggest value + * you'll get with a 64-bit time_t and a nanosecond-resolution + * fraction-of-a-second. + * + * That's 12+1+2+1+2+1+2+1+2+2+2+1+9+1, including the terminating + * \0, or 39. + * + * If we're displaying the time as epoch time, and the time is + * unsigned, 2^64-1 is 18446744073709551615, so the buffer has + * to be big enough for 18446744073709551615.999999999. That's + * 20+1+9+1, including the terminating '\0', or 31. If it's + * signed, 2^63 is 9223372036854775808, so the buffer has to + * be big enough for -9223372036854775808.999999999, which is + * again 20+1+9+1, or 31. + * + * So we go with 39. + */ + static gchar time_string_buf[39]; + + if (cf_info->times_known && cf_info->packet_count > 0) { + if (time_as_secs) { + display_epoch_time(time_string_buf, sizeof time_string_buf, timer, tsprecision); + } else { + format_nstime_as_iso8601(time_string_buf, sizeof time_string_buf, timer, decimal_point, TRUE, tsprecision); + } + } else { + snprintf(time_string_buf, sizeof time_string_buf, "n/a"); + } + return time_string_buf; +} + +static gchar * +relative_time_string(nstime_t *timer, int tsprecision, capture_info *cf_info, gboolean want_seconds) +{ + const gchar *second = want_seconds ? " second" : ""; + const gchar *plural = want_seconds ? "s" : ""; + /* + * If we're displaying the time as epoch time, and the time is + * unsigned, 2^64-1 is 18446744073709551615, so the buffer has + * to be big enough for "18446744073709551615.999999999 seconds". + * That's 20+1+9+1+7+1, including the terminating '\0', or 39. + * If it'ssigned, 2^63 is 9223372036854775808, so the buffer has to + * be big enough for "-9223372036854775808.999999999 seconds", + * which is again 20+1+9+1+7+1, or 39. + */ + static gchar time_string_buf[39]; + + if (cf_info->times_known && cf_info->packet_count > 0) { + char *ptr; + size_t remaining; + int num_bytes; + + ptr = time_string_buf; + remaining = sizeof time_string_buf; + num_bytes = snprintf(ptr, remaining, + "%"PRId64, + (gint64)timer->secs); + if (num_bytes < 0) { + /* + * That got an error. + * Not much else we can do. + */ + snprintf(ptr, remaining, "snprintf() failed"); + return time_string_buf; + } + if ((unsigned int)num_bytes >= remaining) { + /* + * That filled up or would have overflowed the buffer. + * Nothing more we can do. + */ + return time_string_buf; + } + ptr += num_bytes; + remaining -= num_bytes; + + if (tsprecision != 0) { + /* + * Append the fractional part. + */ + num_bytes = format_fractional_part_nsecs(ptr, remaining, timer->nsecs, decimal_point, tsprecision); + if ((unsigned int)num_bytes >= remaining) { + /* + * That filled up or would have overflowed the buffer. + * Nothing more we can do. + */ + return time_string_buf; + } + ptr += num_bytes; + remaining -= num_bytes; + } + + /* + * Append the units. + */ + snprintf(ptr, remaining, "%s%s", + second, + timer->secs == 1 ? "" : plural); + + return time_string_buf; + } + + snprintf(time_string_buf, sizeof time_string_buf, "n/a"); + return time_string_buf; +} + +static void print_value(const gchar *text_p1, gint width, const gchar *text_p2, double value) +{ + if (value > 0.0) + printf("%s%.*f%s\n", text_p1, width, value, text_p2); + else + printf("%sn/a\n", text_p1); +} + +/* multi-line comments would conflict with the formatting that capinfos uses + we replace linefeeds with spaces */ +static void +string_replace_newlines(gchar *str) +{ + gchar *p; + + if (str) { + p = str; + while (*p != '\0') { + if (*p == '\n') + *p = ' '; + if (*p == '\r') + *p = ' '; + p++; + } + } +} + +static void +show_option_string(const char *prefix, const char *option_str) +{ + char *str; + + if (option_str != NULL && option_str[0] != '\0') { + str = g_strdup(option_str); + string_replace_newlines(str); + printf("%s%s\n", prefix, str); + g_free(str); + } +} + +static void +print_stats(const gchar *filename, capture_info *cf_info) +{ + const gchar *file_type_string, *file_encap_string; + gchar *size_string; + pkt_cmt *p, *prev; + + /* Build printable strings for various stats */ + if (machine_readable) { + file_type_string = wtap_file_type_subtype_name(cf_info->file_type); + file_encap_string = wtap_encap_name(cf_info->file_encap); + } + else { + file_type_string = wtap_file_type_subtype_description(cf_info->file_type); + file_encap_string = wtap_encap_description(cf_info->file_encap); + } + + if (filename) printf ("File name: %s\n", filename); + if (cap_file_type) { + const char *compression_type_description; + compression_type_description = wtap_compression_type_description(cf_info->compression_type); + if (compression_type_description == NULL) + printf ("File type: %s\n", + file_type_string); + else + printf ("File type: %s (%s)\n", + file_type_string, compression_type_description); + } + if (cap_file_encap) { + printf ("File encapsulation: %s\n", file_encap_string); + if (cf_info->file_encap == WTAP_ENCAP_PER_PACKET) { + int i; + printf ("Encapsulation in use by packets (# of pkts):\n"); + for (i=0; i<WTAP_NUM_ENCAP_TYPES; i++) { + if (cf_info->encap_counts[i] > 0) + printf(" %s (%d)\n", + wtap_encap_description(i), cf_info->encap_counts[i]); + } + } + } + if (cap_file_more_info) { + printf ("File timestamp precision: %s (%d)\n", + wtap_tsprec_string(cf_info->file_tsprec), cf_info->file_tsprec); + } + + if (cap_snaplen && cf_info->snap_set) + printf ("Packet size limit: file hdr: %u bytes\n", cf_info->snaplen); + else if (cap_snaplen && !cf_info->snap_set) + printf ("Packet size limit: file hdr: (not set)\n"); + if (cf_info->snaplen_max_inferred > 0) { + if (cf_info->snaplen_min_inferred == cf_info->snaplen_max_inferred) + printf ("Packet size limit: inferred: %u bytes\n", cf_info->snaplen_min_inferred); + else + printf ("Packet size limit: inferred: %u bytes - %u bytes (range)\n", + cf_info->snaplen_min_inferred, cf_info->snaplen_max_inferred); + } + if (cap_packet_count) { + printf ("Number of packets: "); + if (machine_readable) { + printf ("%u\n", cf_info->packet_count); + } else { + size_string = format_size(cf_info->packet_count, FORMAT_SIZE_UNIT_NONE, 0); + printf ("%s\n", size_string); + g_free(size_string); + } + } + if (cap_file_size) { + printf ("File size: "); + if (machine_readable) { + printf ("%" PRId64 " bytes\n", cf_info->filesize); + } else { + size_string = format_size(cf_info->filesize, FORMAT_SIZE_UNIT_BYTES, 0); + printf ("%s\n", size_string); + g_free(size_string); + } + } + if (cap_data_size) { + printf ("Data size: "); + if (machine_readable) { + printf ("%" PRIu64 " bytes\n", cf_info->packet_bytes); + } else { + size_string = format_size(cf_info->packet_bytes, FORMAT_SIZE_UNIT_BYTES, 0); + printf ("%s\n", size_string); + g_free(size_string); + } + } + if (cf_info->times_known) { + if (cap_duration) /* XXX - shorten to hh:mm:ss */ + printf("Capture duration: %s\n", relative_time_string(&cf_info->duration, cf_info->duration_tsprec, cf_info, TRUE)); + if (cap_start_time) + printf("First packet time: %s\n", absolute_time_string(&cf_info->start_time, cf_info->start_time_tsprec, cf_info)); + if (cap_end_time) + printf("Last packet time: %s\n", absolute_time_string(&cf_info->stop_time, cf_info->stop_time_tsprec, cf_info)); + if (cap_data_rate_byte) { + printf("Data byte rate: "); + if (machine_readable) { + print_value("", 2, " bytes/sec", cf_info->data_rate); + } else { + size_string = format_size((int64_t)cf_info->data_rate, FORMAT_SIZE_UNIT_BYTES_S, 0); + printf ("%s\n", size_string); + g_free(size_string); + } + } + if (cap_data_rate_bit) { + printf("Data bit rate: "); + if (machine_readable) { + print_value("", 2, " bits/sec", cf_info->data_rate*8); + } else { + size_string = format_size((int64_t)(cf_info->data_rate*8), FORMAT_SIZE_UNIT_BITS_S, 0); + printf ("%s\n", size_string); + g_free(size_string); + } + } + } + if (cap_packet_size) printf("Average packet size: %.2f bytes\n", cf_info->packet_size); + if (cf_info->times_known) { + if (cap_packet_rate) { + printf("Average packet rate: "); + if (machine_readable) { + print_value("", 2, " packets/sec", cf_info->packet_rate); + } else { + size_string = format_size((int64_t)cf_info->packet_rate, FORMAT_SIZE_UNIT_PACKETS_S, 0); + printf ("%s\n", size_string); + g_free(size_string); + } + } + } + if (cap_file_hashes) { + printf ("SHA256: %s\n", file_sha256); + printf ("SHA1: %s\n", file_sha1); + } + if (cap_order) printf ("Strict time order: %s\n", order_string(cf_info->order)); + + gboolean has_multiple_sections = (wtap_file_get_num_shbs(cf_info->wth) > 1); + + for (guint section_number = 0; + section_number < wtap_file_get_num_shbs(cf_info->wth); + section_number++) { + wtap_block_t shb; + + // If we have more than one section, add headers for each section. + if (has_multiple_sections) + printf("Section %u:\n\n", section_number); + + shb = wtap_file_get_shb(cf_info->wth, section_number); + if (shb != NULL) { + if (cap_file_more_info) { + char *str; + + if (wtap_block_get_string_option_value(shb, OPT_SHB_HARDWARE, &str) == WTAP_OPTTYPE_SUCCESS) + show_option_string("Capture hardware: ", str); + if (wtap_block_get_string_option_value(shb, OPT_SHB_OS, &str) == WTAP_OPTTYPE_SUCCESS) + show_option_string("Capture oper-sys: ", str); + if (wtap_block_get_string_option_value(shb, OPT_SHB_USERAPPL, &str) == WTAP_OPTTYPE_SUCCESS) + show_option_string("Capture application: ", str); + } + if (cap_comment) { + unsigned int i; + char *str; + + for (i = 0; wtap_block_get_nth_string_option_value(shb, OPT_COMMENT, i, &str) == WTAP_OPTTYPE_SUCCESS; i++) { + show_option_string("Capture comment: ", str); + } + } + + if (pkt_comments && cf_info->pkt_cmts != NULL) { + for (p = cf_info->pkt_cmts; p != NULL; prev = p, p = p->next, g_free(prev)) { + if (machine_readable){ + printf("Packet %d Comment: %s\n", p->recno, g_strescape(p->cmt, NULL)); + } else { + printf("Packet %d Comment: %s\n", p->recno, p->cmt); + } + g_free(p->cmt); + } + } + + if (cap_file_idb && cf_info->num_interfaces != 0) { + guint i; + ws_assert(cf_info->num_interfaces == cf_info->idb_info_strings->len); + printf ("Number of interfaces in file: %u\n", cf_info->num_interfaces); + for (i = 0; i < cf_info->idb_info_strings->len; i++) { + gchar *s = g_array_index(cf_info->idb_info_strings, gchar*, i); + guint32 packet_count = 0; + if (i < cf_info->interface_packet_counts->len) + packet_count = g_array_index(cf_info->interface_packet_counts, guint32, i); + printf ("Interface #%u info:\n", i); + printf ("%s", s); + printf (" Number of packets = %u\n", packet_count); + } + } + } + + if (cap_file_nrb) { + if (num_ipv4_addresses != 0) + printf ("Number of resolved IPv4 addresses in file: %u\n", num_ipv4_addresses); + if (num_ipv6_addresses != 0) + printf ("Number of resolved IPv6 addresses in file: %u\n", num_ipv6_addresses); + } + if (cap_file_dsb) { + if (num_decryption_secrets != 0) + printf ("Number of decryption secrets in file: %u\n", num_decryption_secrets); + } + } +} + +static void +putsep(void) +{ + if (field_separator) putchar(field_separator); +} + +static void +putquote(void) +{ + if (quote_char) putchar(quote_char); +} + +static void +print_stats_table_header_label(const gchar *label) +{ + putsep(); + putquote(); + printf("%s", label); + putquote(); +} + +static void +print_stats_table_header(capture_info *cf_info) +{ + pkt_cmt *p; + char *buf; + + putquote(); + printf("File name"); + putquote(); + + if (cap_file_type) print_stats_table_header_label("File type"); + if (cap_file_encap) print_stats_table_header_label("File encapsulation"); + if (cap_file_more_info) print_stats_table_header_label("File time precision"); + if (cap_snaplen) { + print_stats_table_header_label("Packet size limit"); + print_stats_table_header_label("Packet size limit min (inferred)"); + print_stats_table_header_label("Packet size limit max (inferred)"); + } + if (cap_packet_count) print_stats_table_header_label("Number of packets"); + if (cap_file_size) print_stats_table_header_label("File size (bytes)"); + if (cap_data_size) print_stats_table_header_label("Data size (bytes)"); + if (cap_duration) print_stats_table_header_label("Capture duration (seconds)"); + if (cap_start_time) print_stats_table_header_label("Start time"); + if (cap_end_time) print_stats_table_header_label("End time"); + if (cap_data_rate_byte) print_stats_table_header_label("Data byte rate (bytes/sec)"); + if (cap_data_rate_bit) print_stats_table_header_label("Data bit rate (bits/sec)"); + if (cap_packet_size) print_stats_table_header_label("Average packet size (bytes)"); + if (cap_packet_rate) print_stats_table_header_label("Average packet rate (packets/sec)"); + if (cap_file_hashes) { + print_stats_table_header_label("SHA256"); + print_stats_table_header_label("SHA1"); + } + if (cap_order) print_stats_table_header_label("Strict time order"); + if (cap_file_more_info) { + print_stats_table_header_label("Capture hardware"); + print_stats_table_header_label("Capture oper-sys"); + print_stats_table_header_label("Capture application"); + } + if (cap_comment) print_stats_table_header_label("Capture comment"); + + if (pkt_comments && cf_info->pkt_cmts != NULL) { + /* Packet 2^64 Comment" + NULL */ + buf = (char *)g_malloc0(strlen("Packet 18446744073709551616 Comment") + 1); + + for (p = cf_info->pkt_cmts; p != NULL; p = p->next) { + snprintf(buf, strlen(buf), "Packet %d Comment", p->recno); + print_stats_table_header_label(buf); + } + } + + printf("\n"); +} + +static void +print_stats_table(const gchar *filename, capture_info *cf_info) +{ + const gchar *file_type_string, *file_encap_string; + pkt_cmt *p, *prev; + + /* Build printable strings for various stats */ + file_type_string = wtap_file_type_subtype_name(cf_info->file_type); + file_encap_string = wtap_encap_name(cf_info->file_encap); + + if (filename) { + putquote(); + printf("%s", filename); + putquote(); + } + + if (cap_file_type) { + putsep(); + putquote(); + printf("%s", file_type_string); + putquote(); + } + + /* ToDo: If WTAP_ENCAP_PER_PACKET, show the list of encapsulations encountered; + * Output a line for each different encap with all fields repeated except + * the encapsulation field which has "Per Packet: ..." for each + * encapsulation type seen ? + */ + if (cap_file_encap) { + putsep(); + putquote(); + printf("%s", file_encap_string); + putquote(); + } + + if (cap_file_more_info) { + putsep(); + putquote(); + printf("%s", wtap_tsprec_string(cf_info->file_tsprec)); + putquote(); + } + + if (cap_snaplen) { + putsep(); + putquote(); + if (cf_info->snap_set) + printf("%u", cf_info->snaplen); + else + printf("(not set)"); + putquote(); + if (cf_info->snaplen_max_inferred > 0) { + putsep(); + putquote(); + printf("%u", cf_info->snaplen_min_inferred); + putquote(); + putsep(); + putquote(); + printf("%u", cf_info->snaplen_max_inferred); + putquote(); + } + else { + putsep(); + putquote(); + printf("n/a"); + putquote(); + putsep(); + putquote(); + printf("n/a"); + putquote(); + } + } + + if (cap_packet_count) { + putsep(); + putquote(); + printf("%u", cf_info->packet_count); + putquote(); + } + + if (cap_file_size) { + putsep(); + putquote(); + printf("%" PRId64, cf_info->filesize); + putquote(); + } + + if (cap_data_size) { + putsep(); + putquote(); + printf("%" PRIu64, cf_info->packet_bytes); + putquote(); + } + + if (cap_duration) { + putsep(); + putquote(); + printf("%s", relative_time_string(&cf_info->duration, cf_info->duration_tsprec, cf_info, FALSE)); + putquote(); + } + + if (cap_start_time) { + putsep(); + putquote(); + printf("%s", absolute_time_string(&cf_info->start_time, cf_info->start_time_tsprec, cf_info)); + putquote(); + } + + if (cap_end_time) { + putsep(); + putquote(); + printf("%s", absolute_time_string(&cf_info->stop_time, cf_info->stop_time_tsprec, cf_info)); + putquote(); + } + + if (cap_data_rate_byte) { + putsep(); + putquote(); + if (cf_info->times_known) + printf("%.2f", cf_info->data_rate); + else + printf("n/a"); + putquote(); + } + + if (cap_data_rate_bit) { + putsep(); + putquote(); + if (cf_info->times_known) + printf("%.2f", cf_info->data_rate*8); + else + printf("n/a"); + putquote(); + } + + if (cap_packet_size) { + putsep(); + putquote(); + printf("%.2f", cf_info->packet_size); + putquote(); + } + + if (cap_packet_rate) { + putsep(); + putquote(); + if (cf_info->times_known) + printf("%.2f", cf_info->packet_rate); + else + printf("n/a"); + putquote(); + } + + if (cap_file_hashes) { + putsep(); + putquote(); + printf("%s", file_sha256); + putquote(); + + putsep(); + putquote(); + printf("%s", file_sha1); + putquote(); + } + + if (cap_order) { + putsep(); + putquote(); + printf("%s", order_string(cf_info->order)); + putquote(); + } + + for (guint section_number = 0; + section_number < wtap_file_get_num_shbs(cf_info->wth); + section_number++) { + wtap_block_t shb; + + shb = wtap_file_get_shb(cf_info->wth, section_number); + if (cap_file_more_info) { + char *str; + + putsep(); + putquote(); + if (wtap_block_get_string_option_value(shb, OPT_SHB_HARDWARE, &str) == WTAP_OPTTYPE_SUCCESS) { + printf("%s", str); + } + putquote(); + + putsep(); + putquote(); + if (wtap_block_get_string_option_value(shb, OPT_SHB_OS, &str) == WTAP_OPTTYPE_SUCCESS) { + printf("%s", str); + } + putquote(); + + putsep(); + putquote(); + if (wtap_block_get_string_option_value(shb, OPT_SHB_USERAPPL, &str) == WTAP_OPTTYPE_SUCCESS) { + printf("%s", str); + } + putquote(); + } + + /* + * One might argue that the following is silly to put into a table format, + * but oh well note that there may be *more than one* of each of these types + * of options. To mitigate some of the potential silliness the if(cap_comment) + * block is moved AFTER the if(cap_file_more_info) block. This will make any + * comments the last item(s) in each row. We now have a new -K option to + * disable cap_comment to more easily manage the potential silliness. + * Potential silliness includes multiple comments (therefore resulting in + * more than one additional column and/or comments with embedded newlines + * and/or possible delimiters). + * + * To mitigate embedded newlines and other special characters, use -M + */ + if (cap_comment) { + unsigned int i; + char *opt_comment; + gboolean have_cap = FALSE; + + for (i = 0; wtap_block_get_nth_string_option_value(shb, OPT_COMMENT, i, &opt_comment) == WTAP_OPTTYPE_SUCCESS; i++) { + have_cap = TRUE; + putsep(); + putquote(); + if (machine_readable){ + printf("%s", g_strescape(opt_comment, NULL)); + } else { + printf("%s", opt_comment); + } + putquote(); + } + if(!have_cap) { + /* Maintain column alignment when we have no OPT_COMMENT */ + putsep(); + putquote(); + putquote(); + } + } + + } + + if (pkt_comments && cf_info->pkt_cmts != NULL) { + for(p = cf_info->pkt_cmts; p != NULL; prev = p, p = p->next, g_free(prev)) { + putsep(); + putquote(); + if (machine_readable) { + printf("%s", g_strescape(p->cmt, NULL)); + } else { + printf("%s", p->cmt); + } + g_free(p->cmt); + putquote(); + } + } + + printf("\n"); +} + +static void +cleanup_capture_info(capture_info *cf_info) +{ + guint i; + ws_assert(cf_info != NULL); + + g_free(cf_info->encap_counts); + cf_info->encap_counts = NULL; + + g_array_free(cf_info->interface_packet_counts, TRUE); + cf_info->interface_packet_counts = NULL; + + if (cf_info->idb_info_strings) { + for (i = 0; i < cf_info->idb_info_strings->len; i++) { + gchar *s = g_array_index(cf_info->idb_info_strings, gchar*, i); + g_free(s); + } + g_array_free(cf_info->idb_info_strings, TRUE); + } + cf_info->idb_info_strings = NULL; +} + +static void +count_ipv4_address(const guint addr _U_, const gchar *name _U_, const gboolean static_entry _U_) +{ + num_ipv4_addresses++; +} + +static void +count_ipv6_address(const void *addrp _U_, const gchar *name _U_, const gboolean static_entry _U_) +{ + num_ipv6_addresses++; +} + +static void +count_decryption_secret(guint32 secrets_type _U_, const void *secrets _U_, guint size _U_) +{ + /* XXX - count them based on the secrets type (which is an opaque code, + not a small integer)? */ + num_decryption_secrets++; +} + +static void +hash_to_str(const unsigned char *hash, size_t length, char *str) +{ + int i; + + for (i = 0; i < (int) length; i++) { + snprintf(str+(i*2), 3, "%02x", hash[i]); + } +} + +static void +calculate_hashes(const char *filename) +{ + FILE *fh; + size_t hash_bytes; + + (void) g_strlcpy(file_sha256, "<unknown>", HASH_STR_SIZE); + (void) g_strlcpy(file_sha1, "<unknown>", HASH_STR_SIZE); + + if (cap_file_hashes) { + fh = ws_fopen(filename, "rb"); + if (fh && hd) { + while((hash_bytes = fread(hash_buf, 1, HASH_BUF_SIZE, fh)) > 0) { + gcry_md_write(hd, hash_buf, hash_bytes); + } + gcry_md_final(hd); + hash_to_str(gcry_md_read(hd, GCRY_MD_SHA256), HASH_SIZE_SHA256, file_sha256); + hash_to_str(gcry_md_read(hd, GCRY_MD_SHA1), HASH_SIZE_SHA1, file_sha1); + } + if (fh) fclose(fh); + if (hd) gcry_md_reset(hd); + } +} + +static int +process_cap_file(const char *filename, gboolean need_separator) +{ + int status = 0; + int err; + gchar *err_info; + gint64 size; + gint64 data_offset; + + guint32 packet = 0; + gint64 bytes = 0; + guint32 snaplen_min_inferred = 0xffffffff; + guint32 snaplen_max_inferred = 0; + wtap_rec rec; + Buffer buf; + capture_info cf_info; + gboolean have_times = TRUE; + nstime_t start_time; + int start_time_tsprec; + nstime_t stop_time; + int stop_time_tsprec; + nstime_t cur_time; + nstime_t prev_time; + gboolean know_order = FALSE; + order_t order = IN_ORDER; + guint i; + wtapng_iface_descriptions_t *idb_info; + + pkt_cmt *pc = NULL, *prev = NULL; + + cf_info.wth = wtap_open_offline(filename, WTAP_TYPE_AUTO, &err, &err_info, FALSE); + if (!cf_info.wth) { + cfile_open_failure_message(filename, err, err_info); + return 2; + } + + /* + * Calculate the checksums. Do this after wtap_open_offline, so we don't + * bother calculating them for files that are not known capture types + * where we wouldn't print them anyway. + */ + calculate_hashes(filename); + + if (need_separator && long_report) { + printf("\n"); + } + + nstime_set_zero(&start_time); + start_time_tsprec = WTAP_TSPREC_UNKNOWN; + nstime_set_zero(&stop_time); + stop_time_tsprec = WTAP_TSPREC_UNKNOWN; + nstime_set_zero(&cur_time); + nstime_set_zero(&prev_time); + + cf_info.encap_counts = g_new0(int,WTAP_NUM_ENCAP_TYPES); + + idb_info = wtap_file_get_idb_info(cf_info.wth); + + ws_assert(idb_info->interface_data != NULL); + + cf_info.pkt_cmts = NULL; + cf_info.num_interfaces = idb_info->interface_data->len; + cf_info.interface_packet_counts = g_array_sized_new(FALSE, TRUE, sizeof(guint32), cf_info.num_interfaces); + g_array_set_size(cf_info.interface_packet_counts, cf_info.num_interfaces); + cf_info.pkt_interface_id_unknown = 0; + + g_free(idb_info); + idb_info = NULL; + + /* Zero out the counters for the callbacks. */ + num_ipv4_addresses = 0; + num_ipv6_addresses = 0; + num_decryption_secrets = 0; + + /* Register callbacks for new name<->address maps from the file and + decryption secrets from the file. */ + wtap_set_cb_new_ipv4(cf_info.wth, count_ipv4_address); + wtap_set_cb_new_ipv6(cf_info.wth, count_ipv6_address); + wtap_set_cb_new_secrets(cf_info.wth, count_decryption_secret); + + /* Tally up data that we need to parse through the file to find */ + wtap_rec_init(&rec); + ws_buffer_init(&buf, 1514); + while (wtap_read(cf_info.wth, &rec, &buf, &err, &err_info, &data_offset)) { + if (rec.presence_flags & WTAP_HAS_TS) { + prev_time = cur_time; + cur_time = rec.ts; + if (packet == 0) { + start_time = rec.ts; + start_time_tsprec = rec.tsprec; + stop_time = rec.ts; + stop_time_tsprec = rec.tsprec; + prev_time = rec.ts; + } + if (nstime_cmp(&cur_time, &prev_time) < 0) { + order = NOT_IN_ORDER; + } + if (nstime_cmp(&cur_time, &start_time) < 0) { + start_time = cur_time; + start_time_tsprec = rec.tsprec; + } + if (nstime_cmp(&cur_time, &stop_time) > 0) { + stop_time = cur_time; + stop_time_tsprec = rec.tsprec; + } + } else { + have_times = FALSE; /* at least one packet has no time stamp */ + if (order != NOT_IN_ORDER) + order = ORDER_UNKNOWN; + } + + if (rec.rec_type == REC_TYPE_PACKET) { + bytes += rec.rec_header.packet_header.len; + packet++; + /* packet comments */ + if (pkt_comments && wtap_block_count_option(rec.block, OPT_COMMENT) > 0) { + char *cmt_buff; + for (i = 0; wtap_block_get_nth_string_option_value(rec.block, OPT_COMMENT, i, &cmt_buff) == WTAP_OPTTYPE_SUCCESS; i++) { + pc = g_new0(pkt_cmt, 1); + + pc->recno = packet; + pc->cmt = g_strdup(cmt_buff); + pc->next = NULL; + + if (prev == NULL) + cf_info.pkt_cmts = pc; + else + prev->next = pc; + + prev = pc; + } + } + + /* If caplen < len for a rcd, then presumably */ + /* 'Limit packet capture length' was done for this rcd. */ + /* Keep track as to the min/max actual snapshot lengths */ + /* seen for this file. */ + if (rec.rec_header.packet_header.caplen < rec.rec_header.packet_header.len) { + if (rec.rec_header.packet_header.caplen < snaplen_min_inferred) + snaplen_min_inferred = rec.rec_header.packet_header.caplen; + if (rec.rec_header.packet_header.caplen > snaplen_max_inferred) + snaplen_max_inferred = rec.rec_header.packet_header.caplen; + } + + if ((rec.rec_header.packet_header.pkt_encap > 0) && + (rec.rec_header.packet_header.pkt_encap < WTAP_NUM_ENCAP_TYPES)) { + cf_info.encap_counts[rec.rec_header.packet_header.pkt_encap] += 1; + } else { + fprintf(stderr, "capinfos: Unknown packet encapsulation %d in frame %u of file \"%s\"\n", + rec.rec_header.packet_header.pkt_encap, packet, filename); + } + + /* Packet interface_id info */ + if (rec.presence_flags & WTAP_HAS_INTERFACE_ID) { + /* cf_info.num_interfaces is size, not index, so it's one more than max index */ + if (rec.rec_header.packet_header.interface_id >= cf_info.num_interfaces) { + /* + * OK, re-fetch the number of interfaces, as there might have + * been an interface that was in the middle of packets, and + * grow the array to be big enough for the new number of + * interfaces. + */ + idb_info = wtap_file_get_idb_info(cf_info.wth); + + cf_info.num_interfaces = idb_info->interface_data->len; + g_array_set_size(cf_info.interface_packet_counts, cf_info.num_interfaces); + + g_free(idb_info); + idb_info = NULL; + } + if (rec.rec_header.packet_header.interface_id < cf_info.num_interfaces) { + g_array_index(cf_info.interface_packet_counts, guint32, + rec.rec_header.packet_header.interface_id) += 1; + } + else { + cf_info.pkt_interface_id_unknown += 1; + } + } + else { + /* it's for interface_id 0 */ + if (cf_info.num_interfaces != 0) { + g_array_index(cf_info.interface_packet_counts, guint32, 0) += 1; + } + else { + cf_info.pkt_interface_id_unknown += 1; + } + } + } + + wtap_rec_reset(&rec); + } /* while */ + wtap_rec_cleanup(&rec); + ws_buffer_free(&buf); + + /* + * Get IDB info strings. + * We do this at the end, so we can get information for all IDBs in + * the file, even those that come after packet records, and so that + * we get, for example, a count of the number of statistics entries + * for each interface as of the *end* of the file. + */ + idb_info = wtap_file_get_idb_info(cf_info.wth); + + cf_info.idb_info_strings = g_array_sized_new(FALSE, FALSE, sizeof(gchar*), cf_info.num_interfaces); + cf_info.num_interfaces = idb_info->interface_data->len; + for (i = 0; i < cf_info.num_interfaces; i++) { + const wtap_block_t if_descr = g_array_index(idb_info->interface_data, wtap_block_t, i); + gchar *s = wtap_get_debug_if_descr(if_descr, 21, "\n"); + g_array_append_val(cf_info.idb_info_strings, s); + } + + g_free(idb_info); + idb_info = NULL; + + if (err != 0) { + fprintf(stderr, + "capinfos: An error occurred after reading %u packets from \"%s\".\n", + packet, filename); + cfile_read_failure_message(filename, err, err_info); + if (err == WTAP_ERR_SHORT_READ) { + /* Don't give up completely with this one. */ + status = 1; + fprintf(stderr, + " (will continue anyway, checksums might be incorrect)\n"); + } else { + cleanup_capture_info(&cf_info); + wtap_close(cf_info.wth); + return 2; + } + } + + /* File size */ + size = wtap_file_size(cf_info.wth, &err); + if (size == -1) { + fprintf(stderr, + "capinfos: Can't get size of \"%s\": %s.\n", + filename, g_strerror(err)); + cleanup_capture_info(&cf_info); + wtap_close(cf_info.wth); + return 2; + } + + cf_info.filesize = size; + + /* File Type */ + cf_info.file_type = wtap_file_type_subtype(cf_info.wth); + cf_info.compression_type = wtap_get_compression_type(cf_info.wth); + + /* File Encapsulation */ + cf_info.file_encap = wtap_file_encap(cf_info.wth); + + cf_info.file_tsprec = wtap_file_tsprec(cf_info.wth); + + /* Packet size limit (snaplen) */ + cf_info.snaplen = wtap_snapshot_length(cf_info.wth); + if (cf_info.snaplen > 0) + cf_info.snap_set = TRUE; + else + cf_info.snap_set = FALSE; + + cf_info.snaplen_min_inferred = snaplen_min_inferred; + cf_info.snaplen_max_inferred = snaplen_max_inferred; + + /* # of packets */ + cf_info.packet_count = packet; + + /* File Times */ + cf_info.times_known = have_times; + cf_info.start_time = start_time; + cf_info.start_time_tsprec = start_time_tsprec; + cf_info.stop_time = stop_time; + cf_info.stop_time_tsprec = stop_time_tsprec; + nstime_delta(&cf_info.duration, &stop_time, &start_time); + /* Duration precision is the higher of the start and stop time precisions. */ + if (cf_info.stop_time_tsprec > cf_info.start_time_tsprec) + cf_info.duration_tsprec = cf_info.stop_time_tsprec; + else + cf_info.duration_tsprec = cf_info.start_time_tsprec; + cf_info.know_order = know_order; + cf_info.order = order; + + /* Number of packet bytes */ + cf_info.packet_bytes = bytes; + + cf_info.data_rate = 0.0; + cf_info.packet_rate = 0.0; + cf_info.packet_size = 0.0; + + if (packet > 0) { + double delta_time = nstime_to_sec(&stop_time) - nstime_to_sec(&start_time); + if (delta_time > 0.0) { + cf_info.data_rate = (double)bytes / delta_time; /* Data rate per second */ + cf_info.packet_rate = (double)packet / delta_time; /* packet rate per second */ + } + cf_info.packet_size = (double)bytes / packet; /* Avg packet size */ + } + + if (!long_report && table_report_header) { + print_stats_table_header(&cf_info); + } + + if (long_report) { + print_stats(filename, &cf_info); + } else { + print_stats_table(filename, &cf_info); + } + + cleanup_capture_info(&cf_info); + wtap_close(cf_info.wth); + + return status; +} + +static void +print_usage(FILE *output) +{ + fprintf(output, "\n"); + fprintf(output, "Usage: capinfos [options] <infile> ...\n"); + fprintf(output, "\n"); + fprintf(output, "General infos:\n"); + fprintf(output, " -t display the capture file type\n"); + fprintf(output, " -E display the capture file encapsulation\n"); + fprintf(output, " -I display the capture file interface information\n"); + fprintf(output, " -F display additional capture file information\n"); + fprintf(output, " -H display the SHA256 and SHA1 hashes of the file\n"); + fprintf(output, " -k display the capture comment\n"); + fprintf(output, " -p display individual packet comments\n"); + fprintf(output, "\n"); + fprintf(output, "Size infos:\n"); + fprintf(output, " -c display the number of packets\n"); + fprintf(output, " -s display the size of the file (in bytes)\n"); + fprintf(output, " -d display the total length of all packets (in bytes)\n"); + fprintf(output, " -l display the packet size limit (snapshot length)\n"); + fprintf(output, "\n"); + fprintf(output, "Time infos:\n"); + fprintf(output, " -u display the capture duration (in seconds)\n"); + fprintf(output, " -a display the capture start time\n"); + fprintf(output, " -e display the capture end time\n"); + fprintf(output, " -o display the capture file chronological status (True/False)\n"); + fprintf(output, " -S display start and end times as seconds\n"); + fprintf(output, "\n"); + fprintf(output, "Statistic infos:\n"); + fprintf(output, " -y display average data rate (in bytes/sec)\n"); + fprintf(output, " -i display average data rate (in bits/sec)\n"); + fprintf(output, " -z display average packet size (in bytes)\n"); + fprintf(output, " -x display average packet rate (in packets/sec)\n"); + fprintf(output, "\n"); + fprintf(output, "Metadata infos:\n"); + fprintf(output, " -n display number of resolved IPv4 and IPv6 addresses\n"); + fprintf(output, " -D display number of decryption secrets\n"); + fprintf(output, "\n"); + fprintf(output, "Output format:\n"); + fprintf(output, " -L generate long report (default)\n"); + fprintf(output, " -T generate table report\n"); + fprintf(output, " -M display machine-readable values in long reports\n"); + fprintf(output, "\n"); + fprintf(output, "Table report options:\n"); + fprintf(output, " -R generate header record (default)\n"); + fprintf(output, " -r do not generate header record\n"); + fprintf(output, "\n"); + fprintf(output, " -B separate infos with TAB character (default)\n"); + fprintf(output, " -m separate infos with comma (,) character\n"); + fprintf(output, " -b separate infos with SPACE character\n"); + fprintf(output, "\n"); + fprintf(output, " -N do not quote infos (default)\n"); + fprintf(output, " -q quote infos with single quotes (')\n"); + fprintf(output, " -Q quote infos with double quotes (\")\n"); + fprintf(output, "\n"); + fprintf(output, "Miscellaneous:\n"); + fprintf(output, " -h, --help display this help and exit\n"); + fprintf(output, " -v, --version display version info and exit\n"); + fprintf(output, " -C cancel processing if file open fails (default is to continue)\n"); + fprintf(output, " -A generate all infos (default)\n"); + fprintf(output, " -K disable displaying the capture comment\n"); + fprintf(output, " -P disable displaying individual packet comments\n"); + fprintf(output, "\n"); + fprintf(output, "Options are processed from left to right order with later options superseding\n"); + fprintf(output, "or adding to earlier options.\n"); + fprintf(output, "\n"); + fprintf(output, "If no options are given the default is to display all infos in long report\n"); + fprintf(output, "output format.\n"); +} + +/* + * Report an error in command-line arguments. + */ +static void +capinfos_cmdarg_err(const char *msg_format, va_list ap) +{ + fprintf(stderr, "capinfos: "); + vfprintf(stderr, msg_format, ap); + fprintf(stderr, "\n"); +} + +/* + * Report additional information for an error in command-line arguments. + */ +static void +capinfos_cmdarg_err_cont(const char *msg_format, va_list ap) +{ + vfprintf(stderr, msg_format, ap); + fprintf(stderr, "\n"); +} + +int +main(int argc, char *argv[]) +{ + char *configuration_init_error; + static const struct report_message_routines capinfos_report_routines = { + failure_message, + failure_message, + open_failure_message, + read_failure_message, + write_failure_message, + cfile_open_failure_message, + cfile_dump_open_failure_message, + cfile_read_failure_message, + cfile_write_failure_message, + cfile_close_failure_message + }; + gboolean need_separator = FALSE; + int opt; + int overall_error_status = EXIT_SUCCESS; + static const struct ws_option long_options[] = { + {"help", ws_no_argument, NULL, 'h'}, + {"version", ws_no_argument, NULL, 'v'}, + {0, 0, 0, 0 } + }; + + int status = 0; + + /* + * Set the C-language locale to the native environment and set the + * code page to UTF-8 on Windows. + */ +#ifdef _WIN32 + setlocale(LC_ALL, ".UTF-8"); +#else + setlocale(LC_ALL, ""); +#endif + + cmdarg_err_init(capinfos_cmdarg_err, capinfos_cmdarg_err_cont); + + /* Initialize log handler early so we can have proper logging during startup. */ + ws_log_init("capinfos", vcmdarg_err); + + /* Early logging command-line initialization. */ + ws_log_parse_args(&argc, argv, vcmdarg_err, WS_EXIT_INVALID_OPTION); + + ws_noisy("Finished log init and parsing command line log arguments"); + + /* Get the decimal point. */ + decimal_point = g_strdup(localeconv()->decimal_point); + + /* Initialize the version information. */ + ws_init_version_info("Capinfos", NULL, NULL); + +#ifdef _WIN32 + create_app_running_mutex(); +#endif /* _WIN32 */ + + /* + * Get credential information for later use. + */ + init_process_policies(); + + /* + * Attempt to get the pathname of the directory containing the + * executable file. + */ + configuration_init_error = configuration_init(argv[0], NULL); + if (configuration_init_error != NULL) { + fprintf(stderr, + "capinfos: Can't get pathname of directory containing the capinfos program: %s.\n", + configuration_init_error); + g_free(configuration_init_error); + } + + init_report_message("capinfos", &capinfos_report_routines); + + wtap_init(TRUE); + + /* Process the options */ + while ((opt = ws_getopt_long(argc, argv, "abcdehiklmnopqrstuvxyzABCDEFHIKLMNPQRST", long_options, NULL)) !=-1) { + + switch (opt) { + + case 't': + if (report_all_infos) disable_all_infos(); + cap_file_type = TRUE; + break; + + case 'E': + if (report_all_infos) disable_all_infos(); + cap_file_encap = TRUE; + break; + + case 'l': + if (report_all_infos) disable_all_infos(); + cap_snaplen = TRUE; + break; + + case 'c': + if (report_all_infos) disable_all_infos(); + cap_packet_count = TRUE; + break; + + case 's': + if (report_all_infos) disable_all_infos(); + cap_file_size = TRUE; + break; + + case 'd': + if (report_all_infos) disable_all_infos(); + cap_data_size = TRUE; + break; + + case 'u': + if (report_all_infos) disable_all_infos(); + cap_duration = TRUE; + break; + + case 'a': + if (report_all_infos) disable_all_infos(); + cap_start_time = TRUE; + break; + + case 'e': + if (report_all_infos) disable_all_infos(); + cap_end_time = TRUE; + break; + + case 'S': + time_as_secs = TRUE; + break; + + case 'y': + if (report_all_infos) disable_all_infos(); + cap_data_rate_byte = TRUE; + break; + + case 'i': + if (report_all_infos) disable_all_infos(); + cap_data_rate_bit = TRUE; + break; + + case 'z': + if (report_all_infos) disable_all_infos(); + cap_packet_size = TRUE; + break; + + case 'x': + if (report_all_infos) disable_all_infos(); + cap_packet_rate = TRUE; + break; + + case 'H': + if (report_all_infos) disable_all_infos(); + cap_file_hashes = TRUE; + break; + + case 'o': + if (report_all_infos) disable_all_infos(); + cap_order = TRUE; + break; + + case 'k': + if (report_all_infos) disable_all_infos(); + cap_comment = TRUE; + break; + + case 'p': + if (report_all_infos) disable_all_infos(); + pkt_comments = TRUE; + break; + + case 'K': + cap_comment = FALSE; + break; + + case 'P': + pkt_comments = FALSE; + break; + + case 'F': + if (report_all_infos) disable_all_infos(); + cap_file_more_info = TRUE; + break; + + case 'I': + if (report_all_infos) disable_all_infos(); + cap_file_idb = TRUE; + break; + + case 'n': + if (report_all_infos) disable_all_infos(); + cap_file_nrb = TRUE; + break; + + case 'D': + if (report_all_infos) disable_all_infos(); + cap_file_dsb = TRUE; + break; + + case 'C': + stop_after_failure = TRUE; + break; + + case 'A': + enable_all_infos(); + break; + + case 'L': + long_report = TRUE; + break; + + case 'T': + long_report = FALSE; + break; + + case 'M': + machine_readable = TRUE; + break; + + case 'R': + table_report_header = TRUE; + break; + + case 'r': + table_report_header = FALSE; + break; + + case 'N': + quote_char = '\0'; + break; + + case 'q': + quote_char = '\''; + break; + + case 'Q': + quote_char = '"'; + break; + + case 'B': + field_separator = '\t'; + break; + + case 'm': + field_separator = ','; + break; + + case 'b': + field_separator = ' '; + break; + + case 'h': + show_help_header("Print various information (infos) about capture files."); + print_usage(stdout); + goto exit; + break; + + case 'v': + show_version(); + goto exit; + break; + + case '?': /* Bad flag - print usage message */ + print_usage(stderr); + overall_error_status = WS_EXIT_INVALID_OPTION; + goto exit; + break; + } + } + + if ((argc - ws_optind) < 1) { + print_usage(stderr); + overall_error_status = WS_EXIT_INVALID_OPTION; + goto exit; + } + + if (cap_file_hashes) { + gcry_check_version(NULL); + gcry_md_open(&hd, GCRY_MD_SHA256, 0); + if (hd) + gcry_md_enable(hd, GCRY_MD_SHA1); + + hash_buf = (char *)g_malloc(HASH_BUF_SIZE); + } + + overall_error_status = 0; + + for (opt = ws_optind; opt < argc; opt++) { + + status = process_cap_file(argv[opt], need_separator); + if (status) { + /* Something failed. It's been reported; remember that processing + one file failed and, if -C was specified, stop. */ + overall_error_status = status; + if (stop_after_failure) + goto exit; + } + if (status != 2) { + /* Either it succeeded or it got a "short read" but printed + information anyway. Note that we need a blank line before + the next file's information, to separate it from the + previous file. */ + need_separator = TRUE; + } + } + +exit: + g_free(hash_buf); + gcry_md_close(hd); + wtap_cleanup(); + free_progdirs(); + return overall_error_status; +} |