XXX, people are not aware that expression of this macros might be evaluated multiple times, like:
- BSWAP16(tvb_get_letohs(tvb, off)) : \
+ GUINT16_SWAP_LE_BE(tvb_get_letohs(tvb, off)) : \
Should be tvb_get_ntohs() called?
svn path=/trunk/; revision=53653
subtypes, e.g. Network Monitor version 1 and Network Monitor version 2
are separate "file types", even though they both come from Network
Monitor.
Rename various functions, #defines, and variables appropriately.
svn path=/trunk/; revision=53166
as the "where to put the packet data" argument.
This lets more of the libwiretap code be common between the read and
seek-read code paths, and also allows for more flexibility in the "fill
in the data" path - we can expand the buffer as needed in both cases.
svn path=/trunk/; revision=49949
implemented wtap_dump_file_seek() and _tell()
implemented the previously declared but unimplemented wtap_dump_file_seek() and wtap_dump_file_tell() functions and used them in the seven files that had previously used a plain ftell or fseek and added error checking as appropriate. I also added a new error WTAP_ERR_CANT_SEEK_COMPRESSED and put it next to WTAP_ERR_CANT_SEEK causing renumbering of two of the existing error codes.
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8416
svn path=/trunk/; revision=48348
which could use lseek() and were thus expensive due to system call
overhead. To avoid making a system call for every packet on a
sequential read, we maintained a data_offset field in the wtap structure
for sequential reads.
It's now a routine that just returns information from the FILE_T data
structure, so it's cheap. Use it, rather than maintaining the data_offset
field.
Readers for some file formats need to maintain file offset themselves;
have them do so in their private data structures.
svn path=/trunk/; revision=42423
in little-endian byte order, as that's what the dissector expects. Add
a pletohl() macro for that purpose.
Fix comments (the Veriwave code is *not* writing data to a file!) and
clean up indentation.
svn path=/trunk/; revision=42255
This is POC we may want to have more efficient use of the frame data
structure etc. But this allows for work to be done on the GUI to actually add comments.
svn path=/trunk/; revision=40969
GSList of extensions for a file type, including extensions for the
compressed versions of those file types that we can read.
svn path=/trunk/; revision=40623
same.
Add to wiretap/pcap-common.c a routine to fill in the pseudo-header for
ATM (by looking at the VPI, VCI, and packet data, and guessing) and
Ethernet (setting the FCS length appropriately). Use it for both pcap
and pcap-ng files.
svn path=/trunk/; revision=38840
<zlib.h> there, rather than wtap-int.h. That obviates the need to
include config.h earlier in ascend_scanner.l; revert the previous
change, so we don't require a version of Flex that supports %top.
svn path=/trunk/; revision=37640
structure include a file descriptor. Add a wtap_fstat() for the file
readers that use file times to generate time stamps (we really need a
way to say "this file has no time stamps" or "this file has only
relative time stamps).
svn path=/trunk/; revision=37026
by the gunzipping code. Have it also supply a err_info string, and
report it. Have file_error() supply an err_info string.
Put "the file" - or, for WTAP_ERR_DECOMPRESS, "the compressed file", to
suggest a decompression error - into the rawshark and tshark errors,
along the lines of what other programs print.
Fix a case in the Netscaler code where we weren't fetching the error
code on a read failure.
svn path=/trunk/; revision=36748
zran.c example in the zlib source.
This means that problems in the file's contents might not be reported
when a packet is read, as long as there's no problem in the contents of
the file up to the last bit of compressed data for the packet; we now
check for errors after finishing the sequential read of the file, at
least in some programs, so that shouldn't be an issue (the other
programs need to be changed to do so as well). This is necessary in
order to be able to read all the packets we saw in the sequential pass;
it also lets us get a few more packets from truncated files in some
cases.
svn path=/trunk/; revision=36577
wiretap/file_wrappers.c; nothing outside of file_wrappers.c needs to
know what it looks like, it just passes around pointers to it.
svn path=/trunk/; revision=36538
calls that use it, cast it to whatever it's supposed to be. Making it a
gzFile means you can't use any stdio macros that reach inside the
structure; making it a FILE *, as it used to be, amounts to trying to
use a FILE * as a void * if we're writing a compressed file out.
svn path=/trunk/; revision=36521
file_read(buf, bsize, count, file) macro is compilant with fread
function and takes elements count+ size of each element, however to make
it compilant with gzread() it always returns number of bytes.
In wiretap file_read() this is not really used, file_read is called
either with bsize set to 1 or count to 1.
Attached patch remove bsize argument from macro.
svn path=/trunk/; revision=36491
support; TShark has read+write support. Additionally TShark can read a
"hosts" file and write those records to a capture file.
This uses "struct addrinfo" in many places and probably won't compile on
some platforms.
svn path=/trunk/; revision=36318
done.
Use the wtap_dump_file_ routines to write out capture files, and check
for errors.
Use the phton macros, when available, to translate to big-endian byte
order. Add a new phton24() macro.
Clean up indentation.
svn path=/trunk/; revision=33114
everybody use it; the places using the old wtap_dump_file_write() were
using it in the same way the old wtap_dump_file_write_all() did.
That also lets us get rid of wtap_dump_file_ferror().
Also, have the new wtap_dump_file_write() check for errors from
gzwrite() and fwrite() differently - the former returns 0 on error, the
latter can return a short write on error.
svn path=/trunk/; revision=33113
Support PPP-over-USB.
Don't remove the USB pseudo-header from the packet data for
Linux USB packets, just byte-swap it if necessary and have the
USB dissector fetch the pseudo-header from the raw packet data.
Update USB language ID values.
svn path=/trunk/; revision=32534
wtap-int.h, and change the unions of pointers to those private data
structures into just void *'s.
Have the generic wtap close routine free up the private data, rather
than the type-specific close routine, just as the wtap_dumper close
routine does for its private data. Get rid of close routines that don't
do anything any more.
svn path=/trunk/; revision=32015
iSeries capture processor. Parse the start date into year/month/day at
the time we see it, rather than for every packet; that means we don't
need to allocate a buffer to hold the date as a string (a buffer which
we weren't ever freeing).
svn path=/trunk/; revision=31981
types in the modules for those capture file types, not in wtap-int.h, so
wtap-int.h doesn't have to change when the code to handle that
particular capture type changes, or a new capture file type is added.
(Ultimately, we should do this for all the private data structures.)
svn path=/trunk/; revision=31974
encapsulations.
This fixes a bug reported by Sake during the
Sharkfest 09. Thanks for providing a
Netscreen tracefile with multiple link layer
types.
This patch will be included in Wireshark 1.2.1
and higher.
svn path=/trunk/; revision=28862
Add support to read citrix netscaler capture file format.
From me:
- Renamed packet-ns.c to packet-nstrace.c
- Rewrote to not use "goto" in netscaler.c
- Moved dissecting of coreid
svn path=/trunk/; revision=28564
#include winsock2.h pulls in about 90 distinct .h files
and about 140 total .h files.
Currently winsock2.h is (mostly unnecessarily) included
for each dissector via packet.h/wtap.h.
This patch removes #include winsock2.h from wtap.h and
then includes winsock2.h (or windows.h) in the
few specific places required.
With this patch, my Windows Wireshark build takes
about 30% less time.
svn path=/trunk/; revision=26535
point, so we don't have issues with numbers not being exactly
representable; that makes it less likely that the change described below
will change a time stamp if it's not fixing the time stamp (i.e., if
time_day is 0).
The Sniffer manual "Expert Sniffer(R) Network Analyzer Operations,
Release 5.50" says that a frame2_rec has a time stamp with an 8-bit
time_high field and an 8-bit time_day field. Interpreting the time
stamp that way fixes the time stamps in at least some captures; see, for
example, bug 2251.
Fix/update some comments (for example, the Sniffer documentation is no
longer at that URL).
svn path=/trunk/; revision=24296
This is a replacement of the existing decoding of ERF files (Extensible Record
Format from Endace).
For the decoding of the ERF files, according to the "type of record" given in
the ERF header, several decoders can be used. Up to now, the decoder is
determined according to an environment variable, or with a kind of heuristic.
And, all the treatment is done during the file extraction.
The new architecture, will separate the ERF file decoding, and the ERF record
decoding. The ERF records will be decoded with a specific dissector. This
dissector can be configured with options, to replace the environment variable.
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1839
svn path=/trunk/; revision=23092
The code for reading ERF files has not been significantly
updated since 2004. This patch brings it up to date with a
number of changes.
1) Increase number of decodable ERF types from 7 to 12. This
covers newer DAG card models and firmware updates.
2) Fix timestamp conversion. Was calculating only microsecond
precision, now displaying with nanosecond resolution. Hardware
precision is 7.5 to 30 ns depending on model.
3) Allow the user to specify HDLC encapsulation as 'chdlc',
'ppp_serial', 'frelay' or 'mtp2'. This is needed because the
ERF HDLC capture formats do not include information on what
protocol is used at the next level. This is currently done via
an environment variable 'ERF_HDLC_ENCAP' and is analagous to the
existing 'ERF_ATM_ENCAP' variable.
If the user does not specify an HDLC encapsulation it tries to
guess, and falls back to MTP2 for backwards compatibility with
Florent's existing behaviour.
I know environment variables are ugly, suggestions are welcome.
4) When reading HDLC captures as MTP2, use
WTAP_ENCAP_MTP2_WITH_PHDR rather than WTAP_ENCAP_MTP2. This
allows us to put the 'Multi-Channel ERF' record 'channel
number' field into the MTP2 pseudo header > 'link_number'
field. This is then displayed in Frame information, and can
be filtered on. (Would be nice if it could be made a display
column?)
Because the ERF record does not specify whether Annex A is used
or not, we pass MTP2_ANNEX_A_USED_UNKNOWN and allow the existing
user preference to decide.
Move the MTP2_ANNEX_A_ definitions into Wiretap, make the annex_a_used
field a guint8, and change MTP2_ANNEX_A_USED_UNKNOWN to 2 so it fits in
a guint8. (This means that if you can save an ERF MTP2 file as a
libpcap file, the pseudo-header will have MTP2_ANNEX_A_USED_UNKNOWN in
it.)
svn path=/trunk/; revision=22067
possibly-unaligned pointers, and turn on -Wcast-align so at least some
future code that does that will fail to compile.
svn path=/trunk/; revision=21968
static to the module.
Add the older(?) ID tag for MPEG audio.
Just use the ID at the beginning to identify MPEG audio files; don't
check the file any further.
If the read of the magic number doesn't work, get the error, and, if
there is no error (i.e., it's a short read), just return 0 (meaning "no
error, but this isn't that type of file).
Similarly, if the magic number doesn't match, just return 0, so other
types of file are tried.
svn path=/trunk/; revision=21192
patch and new files provide support for Catapult DCT2000
.out files to wiretap and ethereal.
This wiretap support (catapult_dct2000.c+h) appends a short header to
each packet giving some context, and a corresponding ethereal dissector
(packet-catapult-dct2000.c) parses this before passing the real payload
onto an existing ethereal dissector (for ethernet, ip, lapd, ppp,
frame-relay,...).
For now, there is only support for saving dct2000 files in their own
format, although I may add support for converting between dct2000 and
libpcap later.
updated version of these files and patch, now with support
for MTP2. Olivier's trace used the ANSI variant - the MTP2 and MTP3
decode fine with the right preferences set (although the ISUP dissector
reports a reserved/retired message type).
Witha a change to NOT to declare gboolean catapult_dct2000_board_ports_only;
as extern as MSVC choked on it.
svn path=/trunk/; revision=17862
status field bits".
Check for "Internetwork analyzer" captures by checking the Sniffer
network type, and save that type rather than just an "ATM or not" flag
in the private data.
svn path=/trunk/; revision=16283
currently limited to Ethereal and all the variants of libpcap filetypes only.
We might want to add output compression support to the other tools as well (tethereal, mergecap, ...).
We might also want to add support for the other filetypes, but this is only possible if the filetype functions doesn't use special output operations like fseek.
One bug is still left: if the input and output filetypes while saving are the same, Ethereal currently optimizes this by simply copy the binary file instead of using wiretap (so it will be faster but it will ignore the compress setting).
Don't know a good workaround for this, as I don't know a way to find out if the input file is currently compressed or not. One idea might be to use a heuristic on the filesize (compared to the packet size summmary). Another workaround I see is to remove this optimization, which is of course not the way I like to do it ...
svn path=/trunk/; revision=15804
define "timezone" as "gint16", as it can be positive (west of
UTC) or negative (east of UTC);
update comments to refer to the new names for structure members;
say the precision of the time stamps is 1 nanosecond only if the
ticks per second is > 10 million;
fix the handling of files truncated exactly on a frame boundary.
svn path=/trunk/; revision=15739
The file format stays the same as the common libpcap format, only the lower part of the timestamp field uses nanoseconds instead of microseconds.
This file format uses the libpcap magic number 0xa1b23c4d.
svn path=/trunk/; revision=15623
G_HAVE_GINT64.
Get rid of the floating-point stuff in the Etherpeek Classic file
reading code, just use 64-bit integers. Fix up the calculation of the
nanoseconds portion of the time stamp.
svn path=/trunk/; revision=15544
- automatic adjustment depending on file format
- manual adjustment through menu items
save the setting in the recent file
svn path=/trunk/; revision=15534
I've done more than a day to change the timestamp resolution from microseconds to nanoseconds. As I really don't want to loose those changes, I'm going to check in the changes I've done so far. Hopefully someone else will give me a helping hand with the things left ...
What's done: I've changed the timestamp resolution from usec to nsec in almost any place in the sources. I've changed parts of the implementation in nstime.s/.h and a lot of places elsewhere.
As I don't understand the editcap source (well, I'm maybe just too tired right now), hopefully someone else might be able to fix this soon.
Doing all those changes, we get native nanosecond timestamp resolution in Ethereal. After fixing all the remaining issues, I'll take a look how to display this in a convenient way...
As I've also changed the wiretap timestamp resolution from usec to nsec we might want to change the wiretap version number...
svn path=/trunk/; revision=15520
There is still much to do, but at the very least it can import files allowing the user to choose which protocols handle the diferent sources.
svn path=/trunk/; revision=14606
they have LF at the end of the line on UN*X and CR/LF on Windows;
hopefully this means that if a CR/LF version is checked in on Windows,
the CRs will be stripped so that they show up only when checked out on
Windows, not on UN*X.
svn path=/trunk/; revision=11400
addition to an error code, an error info string, for
WTAP_ERR_UNSUPPORTED, WTAP_ERR_UNSUPPORTED_ENCAP, and
WTAP_ERR_BAD_RECORD errors. Replace the error messages logged with
"g_message()" for those errors with g_strdup()ed or g_strdup_printf()ed
strings returned as the error info string, and change the callers of
those routines to, for those errors, put the info string into the
printed message or alert box for the error.
Add messages for cases where those errors were returned without printing
an additional message.
Nobody uses the error code from "cf_read()" - "cf_read()" puts up the
alert box itself for failures; get rid of the error code, so it just
returns a success/failure indication.
Rename "file_read_error_message()" to "cf_read_error_message()", as it
handles read errors from Wiretap, and have it take an error info string
as an argument. (That handles a lot of the work of putting the info
string into the error message.)
Make some variables in "ascend-grammar.y" static.
Check the return value of "erf_read_header()" in "erf_seek_read()".
Get rid of an unused #define in "i4btrace.c".
svn path=/trunk/; revision=9852
swap the "captured length" and "length" fields, to the open-file code;
store a tri-state (definitely swapped, definitely not swapped, maybe
swapped) value in the per-capture-file-format information for libpcap
format, and use that when processing packets.
svn path=/trunk/; revision=8774
0 means "there is no FCS in the packet data", 4 means "there is an FCS
in the packet data", -1 means "I don't know whether there's an FCS in
the packet data, guess based on the packet size".
Assume that Ethernet encapsulated inside other protocols has no FCS, by
having the "eth" dissector assume that (and not check for an Ethernet
pseudo-header).
Have "ethertype()" take an argument giving the FCS size; pass 0 when
appropriate.
Fix up Wiretap routines to set the pseudo-header. This means we no
longer use the "generic" seek-and-read routine, so get rid of it.
svn path=/trunk/; revision=8574
number.
Put in some commented-out code to deal with some end-of-packet crud in
some ISDN captures - not all ISDN captures have it, so we can't
unconditionally slice it out.
svn path=/trunk/; revision=6867
WTAP_ENCAP_ISDN encapsulation type, which includes a pseudo-header
giving the direction (user-to-network or network-to-user) and the
channel number.
Add a new circuit type, using the ISDN channel number as the circuit ID.
Add an ISDN dissector to put the direction and channel number into the
protocol tree and to call the appropriate dissector for the payload
based on the channel (LAPD for the D channel; V.120, PPP, or data for B
channels, based on some heuristics).
svn path=/trunk/; revision=6521
builds with zlib - "zlib.h", alas, includes <winsock.h>, and you can't
include <winsock.h> before including <winsock2.h> (at least you can
include <winsock2.h> before including <winsock.h>; thank heaven for
small favors).
svn path=/trunk/; revision=6427
All files:
- Replace types from sys/types.h by those from glib.h
- Replace ntoh family of macros from netinet/in.h and winsock2.h
by g_ntoh family from glib.h
- Remove now unneeded includes of sys/types.h, netinet/in.h and
winsock2.h
wtap.h
Move includes to the top
svn path=/trunk/; revision=5909
<packet32.h> includes <winsock2.h>; we include that rather than
<winsock.h>, to avoid errors due to conflicting declarations in
<winsock.h> and <winsock2.h>.
svn path=/trunk/; revision=5742
returns radio information such as signal strength, channel, and data
rate in a pseudo-header. Add that pseudo-header.
Use the "802.11 with radio information" encapsulation type for Wireless
Sniffer files; extract the radio information from where it appears to be
in the header.
Add dissector code for that encapsulation type.
Fix an error in the code to put radio information into the AiroPeek
tree.
Make the "wrapped" flag for NetXRay/Windows Sniffer captures a
"gboolean".
svn path=/trunk/; revision=5122
Jakub Zawadzki