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Add SHA1, RMD160, and MD5 hashes to capinfos. 

svn path=/trunk/; revision=31191
This commit is contained in:
Gerald Combs 2009-12-07 23:18:12 +00:00
parent f25bb34d81
commit 7c276becfd
3 changed files with 140 additions and 4 deletions
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3
Makefile.am
View File

@ -428,7 +428,8 @@ mergecap_CFLAGS = $(AM_CLEAN_CFLAGS) $(py_dissectors_dir)
capinfos_LDADD = \
wiretap/libwiretap.la \
wsutil/libwsutil.la \
@GLIB_LIBS@
@GLIB_LIBS@ \
@LIBGCRYPT_LIBS@
capinfos_CFLAGS = $(AM_CLEAN_CFLAGS) $(py_dissectors_dir)
# Libraries with which to link editcap.

131
capinfos.c
View File

@ -74,6 +74,11 @@
#include "wtap.h"
#include <wsutil/privileges.h>
#ifdef HAVE_LIBGCRYPT
#include <gcrypt.h>
#include <wsutil/file_util.h>
#endif
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#else
@ -128,12 +133,34 @@ 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 */
#ifdef HAVE_LIBGCRYPT
static gboolean cap_file_hashes = TRUE; /* Calculate file hashes */
#endif
#ifdef HAVE_LIBGCRYPT
#define HASH_SIZE_SHA1 20
#define HASH_SIZE_RMD160 20
#define HASH_SIZE_MD5 16
#define HASH_STR_SIZE (41) /* Max hash size * 2 + '\0' */
#define HASH_BUF_SIZE (1024 * 1024)
static gchar file_sha1[HASH_STR_SIZE];
static gchar file_rmd160[HASH_STR_SIZE];
static gchar file_md5[HASH_STR_SIZE];
#define FILE_HASH_OPT "H"
#else
#define FILE_HASH_OPT ""
#endif /* HAVE_LIBGCRYPT */
typedef struct _capture_info {
const char *filename;
guint16 file_type;
int file_encap;
gint64 filesize;
guint64 packet_bytes;
double start_time;
double stop_time;
@ -168,6 +195,10 @@ enable_all_infos(void)
cap_data_rate_bit = TRUE;
cap_packet_size = TRUE;
cap_packet_rate = TRUE;
#ifdef HAVE_LIBGCRYPT
cap_file_hashes = TRUE;
#endif /* HAVE_LIBGCRYPT */
}
static void
@ -189,6 +220,10 @@ disable_all_infos(void)
cap_data_rate_bit = FALSE;
cap_packet_size = FALSE;
cap_packet_rate = FALSE;
#ifdef HAVE_LIBGCRYPT
cap_file_hashes = FALSE;
#endif /* HAVE_LIBGCRYPT */
}
/*
@ -251,6 +286,13 @@ print_stats(const gchar *filename, capture_info *cf_info)
if (cap_data_rate_bit) print_value("Data bit rate: ", 2, " bits/sec", cf_info->data_rate*8);
if (cap_packet_size) printf ("Average packet size: %.2f bytes\n", cf_info->packet_size);
if (cap_packet_rate) print_value("Average packet rate: ", 2, " packets/sec", cf_info->packet_rate);
#ifdef HAVE_LIBGCRYPT
if (cap_file_hashes) {
printf ("SHA1: %s\n", file_sha1);
printf ("RIPEMD160: %s\n", file_rmd160);
printf ("MD5: %s\n", file_md5);
}
#endif /* HAVE_LIBGCRYPT */
}
static void
@ -293,6 +335,13 @@ print_stats_table_header(void)
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)");
#ifdef HAVE_LIBGCRYPT
if (cap_packet_rate) {
print_stats_table_header_label("SHA1");
print_stats_table_header_label("RIPEMD160");
print_stats_table_header_label("MD5");
}
#endif /* HAVE_LIBGCRYPT */
printf("\n");
}
@ -400,6 +449,25 @@ print_stats_table(const gchar *filename, capture_info *cf_info)
putquote();
}
#ifdef HAVE_LIBGCRYPT
if (cap_file_hashes) {
putsep();
putquote();
printf("%s", file_sha1);
putquote();
putsep();
putquote();
printf("%s", file_rmd160);
putquote();
putsep();
putquote();
printf("%s", file_md5);
putquote();
}
#endif /* HAVE_LIBGCRYPT */
printf("\n");
}
@ -528,6 +596,9 @@ usage(gboolean is_error)
fprintf(output, "General infos:\n");
fprintf(output, " -t display the capture file type\n");
fprintf(output, " -E display the capture file encapsulation\n");
#ifdef HAVE_LIBGCRYPT
fprintf(output, " -H display the SHA1, RMD160, and MD5 hashes of the file\n");
#endif
fprintf(output, "\n");
fprintf(output, "Size infos:\n");
fprintf(output, " -c display the number of packets\n");
@ -571,6 +642,9 @@ usage(gboolean is_error)
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");
#ifndef HAVE_LIBGCRYPT
fprintf(output, "\nFile hashing support (-H) is not present.\n");
#endif
}
#ifdef HAVE_PLUGINS
@ -586,6 +660,16 @@ failure_message(const char *msg_format _U_, va_list ap _U_)
}
#endif
#ifdef HAVE_LIBGCRYPT
static void
hash_to_str(const unsigned char *hash, size_t length, char *str) {
int i;
for (i = 0; i < (int) length; i++) {
sprintf(str+(i*2), "%02x", hash[i]);
}
}
#endif /* HAVE_LIBGCRYPT */
int
main(int argc, char *argv[])
@ -598,6 +682,12 @@ main(int argc, char *argv[])
#ifdef HAVE_PLUGINS
char* init_progfile_dir_error;
#endif
#ifdef HAVE_LIBGCRYPT
FILE *fh;
char hash_buf[HASH_BUF_SIZE];
gcry_md_hd_t hd;
size_t hash_bytes;
#endif
/*
* Get credential information for later use.
@ -618,7 +708,7 @@ main(int argc, char *argv[])
/* Process the options */
while ((opt = getopt(argc, argv, "tEcsduaeyizvhxCALTRrNqQBmb")) !=-1) {
while ((opt = getopt(argc, argv, "tEcs" FILE_HASH_OPT "duaeyizvhxCALTRrNqQBmb")) !=-1) {
switch (opt) {
@ -682,6 +772,13 @@ main(int argc, char *argv[])
cap_packet_rate = TRUE;
break;
#ifdef HAVE_LIBGCRYPT
case 'H':
if (report_all_infos) disable_all_infos();
cap_file_hashes = TRUE;
break;
#endif
case 'C':
continue_after_wtap_open_offline_failure = FALSE;
break;
@ -751,8 +848,40 @@ main(int argc, char *argv[])
print_stats_table_header();
}
#ifdef HAVE_LIBGCRYPT
if (cap_file_hashes) {
gcry_check_version(NULL);
gcry_md_open(&hd, GCRY_MD_SHA1, 0);
if (hd) {
gcry_md_enable(hd, GCRY_MD_RMD160);
gcry_md_enable(hd, GCRY_MD_MD5);
}
}
#endif
for (opt = optind; opt < argc; opt++) {
#ifdef HAVE_LIBGCRYPT
strcpy(file_sha1, "<unknown>");
strcpy(file_rmd160, "<unknown>");
strcpy(file_md5, "<unknown>");
if (cap_file_hashes) {
fh = ws_fopen(argv[opt], "r");
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_SHA1), HASH_SIZE_SHA1, file_sha1);
hash_to_str(gcry_md_read(hd, GCRY_MD_RMD160), HASH_SIZE_RMD160, file_rmd160);
hash_to_str(gcry_md_read(hd, GCRY_MD_MD5), HASH_SIZE_MD5, file_md5);
}
fclose(fh);
gcry_md_reset(hd);
}
#endif /* HAVE_LIBGCRYPT */
wth = wtap_open_offline(argv[opt], &err, &err_info, FALSE);
if (!wth) {

10
doc/capinfos.pod
View File

@ -17,6 +17,8 @@ S<[ B<-e> ]>
S<[ B<-y> ]>
S<[ B<-i> ]>
S<[ B<-z> ]>
S<[ B<-x> ]>
S<[ B<-H> ]>
S<[ B<-L> ]>
S<[ B<-T> ]>
S<[ B<-R> ]>
@ -123,11 +125,15 @@ Displays the average data rate, in bits/sec
=item -z
displays the average packet size, in bytes
Displays the average packet size, in bytes
=item -x
displays the average packet rate, in packets/sec
Displays the average packet rate, in packets/sec
=item -H
Displays the SHA1, RIPEMD160, and MD5 hashes for the file.
=item -L