now), the capture file's header encapsulation type is set to 1 for Ethernet for
backwards compability only. These files use per-packet encapsulation types
instead. For now, set it to Unknown file encapsulation until we can find a
way to set it to WTAP_ENCAP_PER_PACKET without having to assert in wtap_read()
so the user can see that it is a per-packet encapulation in places such as
the capinfos program.
svn path=/trunk/; revision=31213
- 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
fail after the private data is allocated, you have to free the private
data).
The file header in nettl files is 128 bytes - use a #define for it, and
also a #define for the magic number size.
svn path=/trunk/; revision=14553
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
rather than requiring individual capture file type handlers to do it
(unless they're doing per-packet encapsulation, in which case we check
to make sure they didn't *leave* it as WTAP_ENCAP_PER_PACKET).
svn path=/trunk/; revision=10290
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
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
that flag in the ATM pseudo-header, and use it to determine whether a
frame is a raw cell or a reassembled frame, rather than using the AAL,
as you can have raw AAL5 cells in a capture.
svn path=/trunk/; revision=6889
used for the DOS-based ATM Sniffer. (That's not a great name, but I
couldn't think of a better one.)
Add a new WTAP_ENCAP_ATM_PDUS_UNTRUNCATED encapsulation type for capture
files where reassembled frames don't have trailers, such as the AAL5
trailer, chopped off. That's what at least some versions of the
Windows-based ATM Sniffer appear to have.
Map the ATM capture file type for NetXRay captures to
WTAP_ENCAP_ATM_PDUS_UNTRUNCATED, and put in stuff to fill in what we've
reverse-engineered, so far, for the pseudo-header; there's more that
needs to be done on it, e.g. getting the channel, AAL type, and traffic
type (or inferring them if they're not in the packet header).
svn path=/trunk/; revision=6840
have it get that information from the pseudo-header instead, and set the
VPI and VCI fields in the pseudo-header before calling it.
Don't call it for non-ATM NetMon captures.
svn path=/trunk/; revision=5982
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
Allow "-" as the output file name in Wiretap, referring to the
standard error.
Optimize the capture loop.
Fix some of the error-message printing code in Ethereal and Tethereal.
Have Wiretap check whether it can seek on a file descriptor, and pass
the results of that test to the file-type-specific "open for output"
routine. Have the "open for output" routines for files where we need to
seek when writing the file return an error if seeks don't work.
svn path=/trunk/; revision=5884
the internal z_err value for the stream if an "fseek()" call it makes
fails, so that if "gzerror()" is subsequently called, it returns Z_OK
rather than an error.
To work around this, we pass "file_seek()" an "int *err", and have the
with-zlib version of "file_seek()" check, if "gzseek()" fails, whether
the return value of "file_error()" is 0 and, if so, have it return
"errno" instead.
svn path=/trunk/; revision=5642
the packets, as the offsets of the frames have been saved by our caller
(because they need them to pass to the random-read routine); add a
sequential_close routine for Netmon files and free up the frame table in
that routine.
svn path=/trunk/; revision=5618
"err" argument is null and return an error code through that argument
only if it isn't, to match what "wtap_dump_close()", which calls those
routines, does.
Put the NetXRay dump routines in order by version number.
svn path=/trunk/; revision=5385
just an image of the ATM Sniffer data. This means that Ethereal doesn't
have to know any ATM Sniffer-specific details (that's all hidden in
Wiretap), and allows us to add to that pseudo-header fields, traffic
types, etc. unknown to ATM Sniffers.
Have Wiretap map VPI 0/VCI 5 to the signalling AAL - for some capture
files, this might not be necessary, as they may mark all signalling
traffic as such, but, on other platforms, we don't know the AAL, so we
assume AAL5 except for 0/5 traffic. Doing it in Wiretap lets us hide
those details from Ethereal (and lets Ethereal interpret 0/5 traffic as
non-signalling traffic, in case that happens to be what it is).
We may know that traffic is LANE, but not whether it's LE Control or
emulated 802.3/802.5; handle that case.
svn path=/trunk/; revision=5302
an "err" argument that points to an "int" into which to put an error
code if it fails.
Check for errors in one call to it, and note that we should do so in
other places.
In the "wtap_seek_read()" call in the TCP graphing code, don't overwrite
"cfile.pseudo_header", and make the buffer into which we read the data
WTAP_MAX_PACKET_SIZE bytes, as it should be.
In some of the file readers for text files, check for errors from the
"parse the record header" and "parse the hex dump" routines when reading
sequentially.
In "csids_seek_read()", fix some calls to "file_error()" to check the
error on the random stream (that being what we're reading).
svn path=/trunk/; revision=4874
For file types where we allocate private data, add "close" routines
where they were missing, to free the private data. Also fix up the code
to clean up after some errors by freeing private data where that wasn't
being done.
Get rid of unused arguments to "wtap_dump_open_finish()".
Fix indentation.
svn path=/trunk/; revision=4857
non-existent functions.
Remove the "filetype" argument from the "can_write_encap" functions for
particular capture file types - the argument value is implicit, in that
the routine being called is the routine for that particular file type.
svn path=/trunk/; revision=4823
reading the capture file. Have callers of "wtap_snapshot_length()"
treat a value of 0 as "unknown", and default to WTAP_MAX_PACKET_SIZE (so
that, when writing a capture file in a format that *does* store the
snapshot length, we can at least put *something* in the file).
If we don't know the snapshot length of the current capture file, don't
display a value in the summary window.
Don't use "cfile.snap" as the snapshot length option when capturing -
doing so causes Ethereal to default, when capturing, to the snapshot
length of the last capture file that you read in, rather than to the
snapshot length of the last capture you did (or the initial default of
"no snapshot length").
Redo the "Capture Options" dialog box to group options into sections
with frames around them, and add units to the snapshot length, maximum
file size, and capture duration options, as per a suggestion by Ulf
Lamping. Also add units to the capture count option.
Make the snapshot length, capture count, maximum file size, and capture
duration options into a combination of a check box and a spin button.
If the check box is not checked, the limit in question is inactive
(snapshot length of 65535, no max packet count, no max file size, no max
capture duration); if it's checked, the spinbox specifies the limit.
Default all of the check boxes to "not checked" and all of the spin
boxes to small values.
Use "gtk_toggle_button_get_active()" rather than directly fetching the
state of a check box.
svn path=/trunk/; revision=4709
NetMon 2.0; I don't have any ATM captures *from* NetMon to try it on, so
I don't know what significance the "destination address" and "source
address" fields have, but we can at least read the captures we ourselves
write out, as can NetMon).
svn path=/trunk/; revision=4606
trying to read the frame table, return -1 with "*err" set to
WTAP_ERR_SHORT_READ, don't return 0 - we've already decided that the
file is a NetMon file, so we shouldn't return a "this isn't a NetMon
file" indication, we should return a "this file is too short" error, as
that's what the problem is.
Fix up the error messages for WTAP_ERR_SHORT_READ to indicate that the
read might have gotten cut short in the middle of data other than a
packet.
svn path=/trunk/; revision=4331
which we store it a "size_t", and then fix up the bugs that were
revealed by the compiler warnings that produced - "fwrite()" returns 0,
not a negative number, on an I/O error.
Fix up some other items to have type "size_t", or to have various
unsigned types, while we're at it, to squelch compiler warnings.
svn path=/trunk/; revision=3867
* gcc 3.0 warning fixes:
- text2pcap.c: The number of characters to scan should probably not be 0
- wiretap/csids.c: using preincrement on a variable used on both
sides of an assignment might be undefined by the C99(?) standard
* turn on additional warnings for epan and wiretap too
- epan/configure.in
- wiretap/configure.in
* Fix some warnings (missing includes, signed/unsigned, missing
initializers) found by turning on the warnings
- all other files :-)
svn path=/trunk/; revision=3709
beginning of the file before reading anything from the file is bogus -
do that in the loop that tries each of the open routines, instead.
(They may have to reset the seek pointer later if, for example, the
capture file begins with the first packet, and the "open()" routine
looks at that packet to try to guess whether the packet is in the file
format in question.)
Set "wth->data_offset" to 0 while you're at it, so capture file readers
don't have to do that, either.
svn path=/trunk/; revision=3123
(We really need to put in some rudimentary 64-bit integer support, for
the benefit of platforms+compilers that don't support it; the
floating-point calculations we're doing now appear not to get exactly
the right answer, from an experiment at reading a NetMon 2.x file and
writing it back out as NetMon 2.x with editcap.)
svn path=/trunk/; revision=2939
just an EOF, it should set "*err" to 0. Fix up a bunch of read routines
for various capture file types to set "*err" appropriately.
svn path=/trunk/; revision=2667
pseudo_header.
Use generic "p2p_phdr" instead of "lapd_phdr". Modify toshiba.c and
packet-lapd.c to take that into account.
Add frame.p2p_dir, a filterable field, 0=sent, 1=recvd
Make p2p_dir available in packe_info, as I think it will be needed
in VJ COMP and UNCOMP dissection.
Rename WTAP_ENCAP_TR to WTAP_ENCAP_TOKEN_RING.
Mention pppd-log support in man page.
Mention atmsnoop in README.
svn path=/trunk/; revision=2455
a "keep reading" boolean value is returned from the function.
This avoids having to hack around the fact that some file formats truly
do have records that start at offset 0. (i4btrace and csids have no
file header. Neither does the pppdump-style file that I'm looking at right now).
svn path=/trunk/; revision=2392
to that file, leave public definitions in wtap.h.
Rename "union pseudo_header" to "union wtap_pseudo_header".
Make the wtap_pseudo_header pointer available in packet_info struct.
svn path=/trunk/; revision=1989
Stephen Fisher