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
So far I've done only regression testing (the new functionality and what's in wtap-plugins.c has not yet being tested).
it is a first step in the way to have lua opening files.
svn path=/trunk/; revision=21686
In the attached patch, the K12 wiretap now saves the content of record
after captured packet data. The K12 dissector then could extract them and provide
useful information to properly dissect FP frames (user plane of UTRAN Iub
interface).
svn path=/trunk/; revision=20749
Modified to support the header as a pseudo_header rather than as part of
the packet data.
Fixed some calls that fetch data from the USB packet to fetch it in
little-endian byte order.
Got rid of redundant code to get conversation-specific data (the
get_usb_conv_info() call already does that).
For control packets, only parse the setup information if setup_flag is
0.
Don't interpret a control packet as a standard request unless the setup
type is "Standard".
svn path=/trunk/; revision=20632
HP-UX 11.31 will add a new nettl trace subsystem, NS_LS_TELNET (ID=267).
NS_LS_TELNET is just raw telnet data. There is no layer 2/3/4 headers, so
there's just the HP-UX nettl record header followed directly by the TCP payload
for a telnet connection. Thus the need for a new wiretap encapsulation type...
svn path=/trunk/; revision=20253
A patch that adds support for dissection of
libpcap DLT_JUNIPER_VP frames. In addition i have fixed
also the indent for DLT_JUNIPER_GGSN.
svn path=/trunk/; revision=18940
These patches:
- fix the bounds errors reported by coverity in bug 879
- fix a couple of other potential bounds errors (length checking 1st & 2nd lines in file)
- reorder catapult_dct2000_phdr so that normal protocol pseudo-header info is at the start. This means that the stub dissector can avoid the nasty
(overlapped) memcpy
- a little whitespace fixing
svn path=/trunk/; revision=17886
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
The attached patch adds support for LAPD frames captured using vISDN thru
libpcap. The support has already been included in libpcap.
The patch adds a new wiretap encapsulation, the necessary glue to decode
SLL-encapsulated frames, and some minor change in the LAPD dissector in order
to support the remote-to-remote frames captured on the ISDN E-Channel.
Please apply ethereal-encap-table.diff before, as it fixes a misalignment in
the encapsulation names table.
svn path=/trunk/; revision=17450
patch to support 4 additional juniper DLTs.
all those are wrappers for exisiting media types augmented with meta-information which gets also displayed using this patch;
svn path=/trunk/; revision=15908
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
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
- 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
(so if the file's gzipped, it's *NOT* the size of the file after
uncompressing), and an approximation of the amount of that data read
sequentially so far.
Use those for various progress bars and the like.
Make the fstat() in the Ascend trace reader directly use wth->fd, as
it's inside Wiretap; that gets rid of the last caller of wtap_fd() (as
we're no longer directly using fstat() or lseek() in Ethereal), so get
rid of wtap_fd().
svn path=/trunk/; revision=15437
- add support for Multi-Link Frame-Relay (FRF.15) captures
taken on Juniper ML-, LS-, AS- PICs.
- rework of the common juniper header dissector:
test the extension flag (0x80) which indicates that there are
meta-information like interface-index, interface-name etc.
present
- minor bugfix (LSQ L3-proto masks, direction masks were broken)
svn path=/trunk/; revision=15316
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
indicating the direction, narrowband/broadband, and interface number.
- Add support to display the direction and interface number.
- Add support to packet-mtp2.c to use the broadband/narrowband indication.
svn path=/trunk/; revision=14265
Attached is an update to Lucent/Ascend trace parsing: fix a few bugs,
add support for ISDN and Ethernet captures - diffs to 0.10.9.
svn path=/trunk/; revision=13311
Gerald Combs