forked from osmocom/wireshark
Add "inferred" snapshot length (if any) to the output.
A snapshot length is inferred if there are records in a capture file with "capture length" less than "packet length". svn path=/trunk/; revision=32649daniel/osmux
Bill Meier
parent
ee02ae333b
commit
7cec985521
170
capinfos.c
170
capinfos.c
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@ -160,24 +160,26 @@ static gchar file_md5[HASH_STR_SIZE];
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#endif /* HAVE_LIBGCRYPT */
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typedef struct _capture_info {
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const char *filename;
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guint16 file_type;
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int file_encap;
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gint64 filesize;
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const char *filename;
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guint16 file_type;
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int file_encap;
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gint64 filesize;
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guint64 packet_bytes;
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double start_time;
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double stop_time;
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guint32 packet_count;
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gboolean snap_set;
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guint32 snaplen;
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gboolean drops_known;
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guint32 drop_count;
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guint64 packet_bytes;
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double start_time;
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double stop_time;
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guint32 packet_count;
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gboolean snap_set; /* If set in capture file header */
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guint32 snaplen; /* value from the capture file header */
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guint32 snaplen_min_inferred; /* If caplen < len for 1 or more rcds */
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guint32 snaplen_max_inferred; /* ... */
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gboolean drops_known;
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guint32 drop_count;
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double duration;
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double packet_rate;
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double packet_size;
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double data_rate; /* in bytes */
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double duration;
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double packet_rate;
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double packet_size;
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double data_rate; /* in bytes */
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} capture_info;
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static void
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@ -209,23 +211,23 @@ enable_all_infos(void)
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static void
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disable_all_infos(void)
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{
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report_all_infos = FALSE;
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report_all_infos = FALSE;
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cap_file_type = FALSE;
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cap_file_encap = FALSE;
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cap_snaplen = FALSE;
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cap_packet_count = FALSE;
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cap_file_size = FALSE;
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cap_file_type = FALSE;
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cap_file_encap = FALSE;
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cap_snaplen = FALSE;
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cap_packet_count = FALSE;
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cap_file_size = FALSE;
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cap_data_size = FALSE;
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cap_duration = FALSE;
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cap_start_time = FALSE;
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cap_end_time = FALSE;
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cap_data_size = FALSE;
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cap_duration = FALSE;
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cap_start_time = FALSE;
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cap_end_time = FALSE;
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cap_data_rate_byte = FALSE;
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cap_data_rate_bit = FALSE;
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cap_packet_size = FALSE;
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cap_packet_rate = FALSE;
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cap_data_rate_bit = FALSE;
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cap_packet_size = FALSE;
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cap_packet_rate = FALSE;
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#ifdef HAVE_LIBGCRYPT
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cap_file_hashes = FALSE;
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@ -291,9 +293,9 @@ static void print_value(const gchar *text_p1, gint width, const gchar *text_p2,
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static void
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print_stats(const gchar *filename, capture_info *cf_info)
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{
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const gchar *file_type_string, *file_encap_string;
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time_t start_time_t;
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time_t stop_time_t;
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const gchar *file_type_string, *file_encap_string;
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time_t start_time_t;
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time_t stop_time_t;
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/* Build printable strings for various stats */
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file_type_string = wtap_file_type_string(cf_info->file_type);
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@ -305,9 +307,16 @@ print_stats(const gchar *filename, capture_info *cf_info)
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if (cap_file_type) printf ("File type: %s\n", file_type_string);
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if (cap_file_encap) printf ("File encapsulation: %s\n", file_encap_string);
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if (cap_snaplen && cf_info->snap_set)
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printf ("Packet size limit: %u bytes\n", cf_info->snaplen);
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printf ("Packet size limit: file hdr: %u bytes\n", cf_info->snaplen);
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else if(cap_snaplen && !cf_info->snap_set)
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printf ("Packet size limit: (not set)\n");
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printf ("Packet size limit: file hdr: (not set)\n");
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if (cf_info->snaplen_max_inferred > 0) {
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if (cf_info->snaplen_min_inferred == cf_info->snaplen_max_inferred)
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printf ("Packet size limit: inferred: %u bytes\n", cf_info->snaplen_min_inferred);
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else
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printf ("Packet size limit: inferred: %u bytes - %u bytes (range)\n",
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cf_info->snaplen_min_inferred, cf_info->snaplen_max_inferred);
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}
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if (cap_packet_count) printf ("Number of packets: %u\n", cf_info->packet_count);
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if (cap_file_size) printf ("File size: %" G_GINT64_MODIFIER "d bytes\n", cf_info->filesize);
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if (cap_data_size) printf ("Data size: %" G_GINT64_MODIFIER "u bytes\n", cf_info->packet_bytes);
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@ -358,6 +367,8 @@ print_stats_table_header(void)
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if (cap_file_type) print_stats_table_header_label("File type");
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if (cap_file_encap) print_stats_table_header_label("File encapsulation");
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if (cap_snaplen) print_stats_table_header_label("Packet size limit");
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if (cap_snaplen) print_stats_table_header_label("Packet size limit min (inferred)");
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if (cap_snaplen) print_stats_table_header_label("Packet size limit max (inferred)");
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if (cap_packet_count) print_stats_table_header_label("Number of packets");
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if (cap_file_size) print_stats_table_header_label("File size (bytes)");
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if (cap_data_size) print_stats_table_header_label("Data size (bytes)");
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@ -382,9 +393,9 @@ print_stats_table_header(void)
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static void
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print_stats_table(const gchar *filename, capture_info *cf_info)
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{
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const gchar *file_type_string, *file_encap_string;
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time_t start_time_t;
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time_t stop_time_t;
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const gchar *file_type_string, *file_encap_string;
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time_t start_time_t;
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time_t stop_time_t;
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/* Build printable strings for various stats */
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file_type_string = wtap_file_type_string(cf_info->file_type);
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@ -419,6 +430,27 @@ print_stats_table(const gchar *filename, capture_info *cf_info)
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printf("%u", cf_info->snaplen);
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else
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printf("(not set)");
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putquote();
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if (cf_info->snaplen_max_inferred > 0) {
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putsep();
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putquote();
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printf("%u%", cf_info->snaplen_min_inferred);
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putquote();
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putsep();
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putquote();
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printf("%u%", cf_info->snaplen_max_inferred);
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putquote();
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}
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else {
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putsep();
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putquote();
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printf("n/a");
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putquote();
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putsep();
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putquote();
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printf("n/a");
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putquote();
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}
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}
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if (cap_packet_count) {
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@ -516,18 +548,20 @@ print_stats_table(const gchar *filename, capture_info *cf_info)
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static int
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process_cap_file(wtap *wth, const char *filename)
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{
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int err;
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gchar *err_info;
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gint64 size;
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gint64 data_offset;
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int err;
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gchar *err_info;
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gint64 size;
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gint64 data_offset;
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guint32 packet = 0;
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gint64 bytes = 0;
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guint32 packet = 0;
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gint64 bytes = 0;
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guint32 snaplen_min_inferred = 0xffffffff;
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guint32 snaplen_max_inferred = 0;
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const struct wtap_pkthdr *phdr;
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capture_info cf_info;
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double start_time = 0;
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double stop_time = 0;
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double cur_time = 0;
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capture_info cf_info;
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double start_time = 0;
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double stop_time = 0;
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double cur_time = 0;
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/* Tally up data that we need to parse through the file to find */
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while (wtap_read(wth, &err, &err_info, &data_offset)) {
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@ -543,14 +577,27 @@ process_cap_file(wtap *wth, const char *filename)
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if (cur_time > stop_time) {
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stop_time = cur_time;
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}
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bytes+=phdr->len;
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packet++;
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/* If caplen < len for a rcd, then presumably */
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/* 'Limit packet capture length' was done for this rcd. */
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/* Keep track as to the min/max actual snapshot lengths */
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/* seen for this file. */
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if (phdr->caplen < phdr->len) {
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if (phdr->caplen < snaplen_min_inferred)
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snaplen_min_inferred = phdr->caplen;
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if (phdr->caplen > snaplen_max_inferred)
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snaplen_max_inferred = phdr->caplen;
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}
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}
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if (err != 0) {
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fprintf(stderr,
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"capinfos: An error occurred after reading %u packets from \"%s\": %s.\n",
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packet, filename, wtap_strerror(err));
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packet, filename, wtap_strerror(err));
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switch (err) {
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case WTAP_ERR_UNSUPPORTED:
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@ -568,7 +615,7 @@ process_cap_file(wtap *wth, const char *filename)
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if (size == -1) {
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fprintf(stderr,
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"capinfos: Can't get size of \"%s\": %s.\n",
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filename, strerror(err));
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filename, strerror(err));
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return 1;
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}
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@ -587,6 +634,9 @@ process_cap_file(wtap *wth, const char *filename)
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else
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cf_info.snap_set = FALSE;
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cf_info.snaplen_min_inferred = snaplen_min_inferred;
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cf_info.snaplen_max_inferred = snaplen_max_inferred;
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/* # of packets */
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cf_info.packet_count = packet;
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@ -634,9 +684,9 @@ usage(gboolean is_error)
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fprintf(output, "Capinfos %s"
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#ifdef SVNVERSION
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" (" SVNVERSION " from " SVNPATH ")"
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" (" SVNVERSION " from " SVNPATH ")"
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#endif
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"\n", VERSION);
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"\n", VERSION);
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fprintf(output, "Prints various information (infos) about capture files.\n");
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fprintf(output, "See http://www.wireshark.org for more information.\n");
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fprintf(output, "\n");
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@ -707,7 +757,7 @@ usage(gboolean is_error)
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static void
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failure_message(const char *msg_format _U_, va_list ap _U_)
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{
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return;
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return;
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}
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#endif
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@ -748,13 +798,13 @@ main(int argc, char *argv[])
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#ifdef HAVE_PLUGINS
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/* Register wiretap plugins */
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if ((init_progfile_dir_error = init_progfile_dir(argv[0], main))) {
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g_warning("capinfos: init_progfile_dir(): %s", init_progfile_dir_error);
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g_free(init_progfile_dir_error);
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} else {
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init_report_err(failure_message,NULL,NULL,NULL);
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init_plugins();
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}
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if ((init_progfile_dir_error = init_progfile_dir(argv[0], main))) {
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g_warning("capinfos: init_progfile_dir(): %s", init_progfile_dir_error);
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g_free(init_progfile_dir_error);
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} else {
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init_report_err(failure_message,NULL,NULL,NULL);
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init_plugins();
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}
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#endif
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/* Process the options */
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@ -947,7 +997,7 @@ main(int argc, char *argv[])
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if (!wth) {
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fprintf(stderr, "capinfos: Can't open %s: %s\n", argv[opt],
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wtap_strerror(err));
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wtap_strerror(err));
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switch (err) {
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case WTAP_ERR_UNSUPPORTED:
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