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svn path=/trunk/; revision=3326
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capturing; if we succeed, display the packet drops count as the "Drops"
value in the status line and as the "Dropped packets" statistics in the
summary dialog box, otherwise don't display it at all.
In Tethereal, attempt to get the packet statistics from libpcap when
capturing; if we succeed, and if there were any dropped packets, print
out the count of dropped packets when the capture finishes.
svn path=/trunk/; revision=3016
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into epan/ftypes.
Re-write display filter routines using Lemon parser instead of yacc.
Besides using a different tool, the new grammar is much simpler, while
the display filter engine itself is more powerful and more easily extended.
Add dftest executable, to test display filter "bytecode" generation.
Add option to "configure" to build dftest or randpkt, both of which are not
built by default.
Implement Ed Warnicke's ideas about dranges in the new display filter and
ftype code.
Remove type FT_TEXT_ONLY in favor of FT_NONE, and have protocols registered
as FT_PROTOCOL. Thus, FT_NONE is used only for simple labels in the proto tree,
while FT_PROTOCOL is used for protocols. This was necessary for being
able to make byte slices (ranges) out of protocols, like "frame[0:3]"
Win32 Makefile.nmake's will be added tonight.
svn path=/trunk/; revision=2967
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compiled capture filter program, so remove it, and remove the include of
<pcap.h> from "file.h"; instead, have local "struct bpf_program"
structures where needed, and have those files that need stuff from
<pcap.h> include it.
This cleans stuff up a bit, and should eliminate a pile of compile
warnings with Visual C++ due to <pcap.h> and some GTK+/GLib header file
(or files they include) both defining "inline".
svn path=/trunk/; revision=2954
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files from being #included in epan/packet.c.
Fix the other files that need either "gtk/colors.h" or <gtk/gtk.h> #included
as a result of not pulling in gtk/colors.h automatically because of file.h.
svn path=/trunk/; revision=2519
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"top-level" dissectors that libepan-users call, instead of dissect_packet().
The epan_dissect_t holds the tvbuff after dissection so that the tvbuff's
memory is not cleared until after the proto_tree is freed. (I might stuff
the proto_tree into the epan_dissect_t, too).
What remains of dissect_packet() in packet.c handles the tvbuff initialiation.
The real meat of dissect_packet() is now in dissect_frame(), in packet-frame.c
This means that "packet.c" is no longer a dissector, os it is no longer
passed to make-reg-dotc.
Once dissect_fddi() gets two wrapper functions (dissect_fddi_swapped()
and dissect_fddi_nonswapped()), the a dissector handoff routine could
be used instead of the switch statement in dissect_frame(). I'd register
a field like "wtap.encap"
svn path=/trunk/; revision=2478
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the middle mouse button. The marked packets are displayed in
reverse video but this should change in the future (the color
should be configurable via the GUI).
Then, the marked packets can be saved (via the "Save as"
window dialog).
Other features will be added in the future (I am waiting for
your comments and wishes).
svn path=/trunk/; revision=2322
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- add <stdarg.h> or <varargs.h> in snprintf.h
and remove those inclusions in the other #ifdef NEED_SNPRINTF_H codes
- remove the check of multiple inclusions in source (.c) code
(there is a bit loss of _cpp_ performance, but I prefer the gain of
code reading and maintenance; and nowadays, disk caches and VM are
correctly optimized ;-).
- protect all (well almost) header files against multiple inclusions
- add header (i.e. GPL license) in some include files
- reorganize a bit the way header files are included:
First:
#include <system_include_files>
#include <external_package_include_files (e.g. gtk, glib etc.)>
Then
#include "ethereal_include_files"
with the correct HAVE_XXX or NEED_XXX protections.
- add some HAVE_XXX checks before including some system header files
- add the same HAVE_XXX in wiretap as in ethereal
Please forgive me, if I break something (I've only compiled and regression
tested on Linux).
svn path=/trunk/; revision=2254
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svn path=/trunk/; revision=2237
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file to a user-specified file.
Move the file-copy routine in save_cap_file() to an indepenent
function in file.c (copy_binary_file()) so that follow_dlg.c can use it.
Remove #include "follow.h" from the C files that don't need it.
svn path=/trunk/; revision=2200
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to use "warning" dialog boxes only to warn the user "if you do that, bad
things may happen" *and* to offer them the option either to drive on or
quit, so perhaps ESD_TYPE_CRIT should be used for all errors).
However, put "Ethereal: Error" rather than "Ethereal: Critical" in the
title bar, in the hopes that it'll make it clearer that Something Bad
Happened.
If the user specifies that captures should be saved to a user-specified
file rather than a temporary file, report errors trying to create that
file with "file_open_error_message()".
Make the "for_writing" argument to "file_open_error_message()" a
"gboolean", as it's either TRUE (if the file is being opened for
writing) or FALSE (if it's being opened for reading).
Report EISDIR as "XXX is a directory (folder), not a file.".
svn path=/trunk/; revision=2143
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a word to use in the progress dialog, and a flag indicating whether the
display filter is to be reevaluated or not, and:
have "colorize_packet()" call that routine with "Colorizing" and
FALSE as those arguments;
have the filtering code call that routine with "Filtering" and
TRUE as those arguments;
add an exported routine to call that routine with "Reprocessing"
and TRUE as those arguments, to use to re-generate the packet
list and to re-filter the packets if a protocol preference has
been changed.
Keep track of whether preferences are changed from their initial value
by a preferences file or a command-line option, or from their previous
value by the "Preferences" dialog box; have "prefs_apply_all()" only
call the "apply" callback for a module if they have.
Call "prefs_apply_all()" after the command-line arguments have been
parsed and after "OK" has been clicked in the "Preferences" dialog box,
to notify modules of preference changes if they've registered a callback
for that.
After "OK" has been clicked in the "Preferences" dialog box, if any
preferences have changed, call the reprocessing routine, as the summary
line for some frames and/or the current display filter's value when
applied to some frames may have changed as a result of a preference
change. Do the same after "OK" or "Apply" has been clicked in the
"Display Options" dialog box (as it controls a protocol preferences
item.
svn path=/trunk/; revision=2126
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potentially long-running operation that has a progress indicator, pop up
a modal dialog box with
an indication of what is being done;
a progress bar;
a "Cancel" button to stop the operation.
This:
leaves more room on the status line for a filter expression;
provides a mechanism to allow the user to cancel long-running
operations (although the way we do so may not back out of them
as nicely as the user might like, if it's not obvious what the
"right" way is or if the "right" way is difficult to implement
or involves doing as much work as letting the operation
continue);
means that, because the dialog box is modal, we don't have to
worry about the user performing arbitrary UI operations out from
under the operation and changing arbitrary bits of state being
used by that operation.
svn path=/trunk/; revision=2103
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a pointer to the "wtap_pkthdr" structure for an open capture
file;
a pointer to the "wtap_pseudo_header" union for an open capture
file;
a pointer to the packet buffer for an open capture file;
so that a program using "wtap_read()" in a loop can get at those items.
Keep, in a "capture_file" structure, an indicator of whether:
no file is open;
a file is open, and being read;
a file is open, and is being read, but the user tried to quit
out of reading the file (e.g., by doing "File/Quit");
a file is open, and has been completely read.
Abort if we try to close a capture that's being read if the user hasn't
tried to quit out of the read.
Have "File/Quit" check if a file is being read; if so, just set the
state indicator to "user tried to quit out of it", so that the code
reading the file can do what's appropriate to clean up, rather than
closing the file out from under that code and causing crashes.
Have "read_cap_file()" read the capture file with a loop using
"wtap_read()", rather than by using "wtap_loop()"; have it check after
reading each packet whether the user tried to abort the read and, if so,
close the capture and return an indication that the read was aborted by
the user. Otherwise, return an indication of whether the read
completely succeeded or failed in the middle (and, if it failed, return
the error code through a pointer).
Have "continue_tail_cap_file()" read the capture file with a loop using
"wtap_read()", rather than by using "wtap_loop()"; have it check after
reading each packet whether the user tried to abort the read and, if so,
quit the loop, and after the loop finishes (even if it read no packets),
return an indication that the read was aborted by the user if that
happened. Otherwise, return an indication of whether the read
completely succeeded or failed in the middle (and, if it failed, return
the error code through a pointer).
Have "finish_tail_cap_file()" read the capture file with a loop using
"wtap_read()", rather than by using "wtap_loop()"; have it check after
reading each packet whether the user tried to abort the read and, if so,
quit the loop, and after the loop finishes (even if it read no packets),
close the capture and return an indication that the read was aborted by
the user if that happened. Otherwise, return an indication of whether
the read completely succeeded or failed in the middle (and, if it
failed, return the error code through a pointer).
Have their callers check whether the read was aborted or not and, if it
was, bail out in the appropriate fashion (exit if it's reading a file
specified by "-r" on the command line; exit the main loop if it's
reading a file specified with File->Open; kill the capture child if it's
"continue_tail_cap_file()"; exit the main loop if it's
"finish_tail_cap_file()".
svn path=/trunk/; revision=2095
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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
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there's no need to keep it around in memory - when the frame data is
read in when handing a frame, read in the information, if any, necessary
to reconstruct the frame header, and reconstruct it. This saves some
memory.
This requires that the seek-and-read function be implemented inside
Wiretap, and that the Wiretap handle remain open even after we've
finished reading the file sequentially.
This also points out that we can't really do X.25-over-Ethernet
correctly, as we don't know where the direction (DTE->DCE or DCE->DTE)
flag is stored; it's not clear how the Ethernet type 0x0805 for X.25
Layer 3 is supposed to be handled in any case. We eliminate
X.25-over-Ethernet support (until we find out what we're supposed to
do).
svn path=/trunk/; revision=1975
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selected before we started re-colorizing or re-filtering the display, as
when the first row is added to the clist, that may be selected and thus
made the current frame.
This means that we can't find the row corresponding to the
previously-selected frame, if any, by checking as each packet is
colorized/filtered and see whether its "frame_data" structure is equal
to "cf->current_frame", as that'll always say that the first frame in
the display is the selected frame.
Instead, we recored the value of "cf->current_frame" before we do
anything to the clist, have "add_packet_to_packet_list()" return either
the row number of the frame (if it passed the filter and thus was added
to the clist) or -1 (if it didn't pass the filter and thus wasn't added
to the clist), and, after "add_packet_to_packet_list()", if the current
frame is the one that was the selected row, remember its row number (if
any), and, when we're finished colorizing/filtering the display, make
that row the current row if it's not -1 (-1 means that the selected row
didn't pass the filter).
Also, don't do that until after we've thawed the clist, as the vertical
adjustment for the clist doesn't reflect reality until then, and
attempting to go to a given row won't work right until the vertical
adjustment for the clist reflects reality.
Shove all the code to set the selected and focus rows, and to make said
row visible, into a routine, so the "Find Frame" and "Go To Frame" code
can use it as well.
svn path=/trunk/; revision=1959
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reduces the memory required for one big capture file I have by about 10
megabytes, and speeds up the reading in of that file, presumably because
it amortizes the memory-allocator space and CPU time overhead over
a set of several "frame_data" structures.
svn path=/trunk/; revision=1776
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the color-selection and color-filter-editing GUI stuff; different
toolkits, and different windows systems, have their own notions of color
objects - they may have nothing in common other than the notion that
colors have red, green, and blue values); move it all to the "gtk"
subdirectory for now, and, as we discover stuff stuff that can be made
platform-independent, drag it up to the top-level directory.
svn path=/trunk/; revision=1621
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directly; it should use them through Wiretap. (Arguably, it shouldn't
use "file_open()", "file_dopen()", or "file_close()" directly, and
should use those through Wiretap as well.)
svn path=/trunk/; revision=1540
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will just give it the value it's always had, as packets are counted
regardless of whether they pass the filter or not (which is what we
want).
Given that, so there's no need for a separate "cf->unfiltered_count"
value, so get rid of it and use "cf->count" instead.
svn path=/trunk/; revision=1441
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summary.c now provides a struct of info (see summary.h)
Changed the name of the summary dialogue callback (hence the change
in menu.c), and added a close button to the dialogue.
Moved #include <gtk/gtk.h> out of print.c and into prefs.h where it
was needed for GdkColor.
svn path=/trunk/; revision=1273
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WTAP_ENCAP_PER_PACKET, if there's more than one type of packet in the
file, or could be WTAP_ENCAP_UNKNOWN, if the file is of a type that
doesn't put an encapsulation type in the file header, and it has no
packets), we just need to call "wtap_file_encap()" when we're done
reading the file.
svn path=/trunk/; revision=1205
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*" as an argument, there's no need to save the file type string in a
"capture_file" structure - we save the file type, and can use that when
generating the summary display.
svn path=/trunk/; revision=1202
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packets that are currently being displayed from that capture.
Centralize the code to control whether "File:Save" and "File:Save As"
are enabled (and *always* have "File:Save As" enabled if you have a
capture; "File:Save" is enabled only if you have a live capture you've
not yet saved, although it does the same thing as "File:Save As").
Have the "save_file" member of a "capture_file" structure represent
*only* the file currently being *written* to by a capture, and, if there
is no capture currently in progress, have it be NULL; the name of the
file currently being *displayed" is in the "filename" member, and an
"is_tempfile" member indicates whether it's a temporary file for a live
capture or not.
Have "close_cap_file()" delete the current capture file if it's a
temporary capture file that hasn't been saved (in its entirety - saving
selected frames doesn't count). Do the same (if there *is* a current
capture file) when exiting.
The "Ready to load or capture" message is the only statusbar message in
the "main" context; "close_cap_file()" should never pop it, it should
only pop whatever message exists in the "file" context, and thus has no
need to take, as an argument, the context for the message it should pop.
Update the man page to reflect the new behavior of "File:Save" and
"File:Save As", and to reflect recent changes to "Display:Match Selected".
svn path=/trunk/; revision=1170
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number" and "there is a frame with that frame number, but it didn't pass
the current display filter".
svn path=/trunk/; revision=1164
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svn path=/trunk/; revision=1152
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"capture.c", along with the other code that deals with the sync pipe.
Close the sync pipe, and get rid of the temporary capture file, on
errors.
Split "tail_cap_file()" into routines to set up to read from the capture
file, to read a specified number of packets from it when told to do so
by the child process, and to read the rest of the capture file and
finish up the capture, to provide the code in "capture.c" the hooks it
needs.
Have a common routine to set the status bar to report the file name and
number of dropped packets, to use both when reading in a capture file in
its entirety all at once and when done with a "read it while the capture
is writing to it" live capture.
svn path=/trunk/; revision=1137
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Modify filter_packtes to return 1 on success, and 0 on failure.
svn path=/trunk/; revision=1106
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svn path=/trunk/; revision=1060
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number.
svn path=/trunk/; revision=989
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svn path=/trunk/; revision=985
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filter to search forward or backward in the list of displayed frames for
a matching frame.
When filtering the display, readjust the display to show the "current"
frame if it passed the display filter. When a file is read in, the
first frame becomes the "current" frame; when a frame is selected, it
becomes the "current" frame, and remains so *even if you unselect it*,
until another frame is selected.
Select the first frame when a file is read in.
Disable most of the "Display" and "Tools" menu items if there's no
current capture file, and enable the relevant ones if there is.
svn path=/trunk/; revision=982
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"cf.dfcode" if the new filter doesn't compile, because the filter
currently in effect will be the one that was last applied - just free up
the text of the new filter, and whatever memory was allocated for the
new filter code.
This means we allocate a new dfilter when a new filter is to be applied,
rather than recycling stuff from the old filter, as we want the old
filter code to remain around if the new filter doesn't compile.
This means that "cf.dfilter" and "cf.dfcode" will be null if there's no
filter in effect.
svn path=/trunk/; revision=803
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svn path=/trunk/; revision=756
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of the packet be printed (this is only done if "Print detail" is
selected; it should be grayed out of "Print summary" is selected).
If that item is selected, suppress the hex printing of uninterpreted
data items in the protocol tree.
Move some GTK+ keys not used outside of "gtk/print_dlg.c" from
"gtk/keys.h" into "gtk/print_dlg.c".
svn path=/trunk/; revision=736
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bounce bar for compressed file support). Note that the progress bar may
not grow smoothly for compressed files, but it should be reasonably accurate
for files which are large enough to matter.
svn path=/trunk/; revision=701
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gzip. The zLib library is used for this purpose. If zLib is not available
(or it's use is disabled by the --disable-zlib option to configure), you
can still compile Ethereal but it will be unable to read compressed capture
files.
IMPORTANT:
Now all file accesses to capture files should be done through special macros.
Specifically, for any use of the following functions on capture files, replace them.
The arguments for the right-side functions are exactly the same as for the
original stdio functions.
fopen file_open
fdopen filed_open
fread file_read
fwrite file_write
fseek file_seek
fclose file_close
ferror file_error
svn path=/trunk/; revision=695
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the "File/Print" dialog box; "Expand all levels" means that all levels
of the protocol tree should be printed, while "Print as displayed" means
that only those levels shown in the display should be printed.
Free the table of column widths once printing is done.
svn path=/trunk/; revision=671
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prints the protocol tree, and summary prints the fields in the summary
clist, with a header line at the beginning of the printout.
Print only packets selected by the current packet filter.
Just have "ARP" and "RARP" in the "Protocol" field for ARP packets;
whether it's a request or a reply can be seen in the "Info" field.
Add to the "Frame" section of the protocol tree the time between the
current packet and the previous displayed packet, and the packet number.
Have FT_RELATIVE_TIME fields be a "struct timeval", and display them as
seconds and fractional seconds (we didn't have any fields of that type,
and that type of time fits the delta time above).
Add an FT_DOUBLE field type (although we don't yet have anything using
it).
svn path=/trunk/; revision=666
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the progress bar up to 100 times, as we get another percent closer to
completion. That reduces the number of times we run the GTK+ main loop;
that main loop may do a "select()" or "poll()" or FIONREAD "ioctl" to
check for input from the X server, adding to the CPU overhead of reading
a file.
The packet filtering progress bar is already updated in a similar
fashion; make it also do up to 100 updates.
svn path=/trunk/; revision=597
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debug printf's in there.
svn path=/trunk/; revision=562
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necessary nor sufficient if you're using "struct tm" (on many, perhaps
most, perhaps even all modern UNIXes, <sys/time.h> includes <time.h>,
which declares "struct tm", but that's not necessarily the case on
non-UNIX systems).
Include <time.h> in "file.c", to declare "struct tm".
Don't use PCAP_ERRBUF_SIZE to declare a message string buffer - that
won't work if you don't have "libpcap".
svn path=/trunk/; revision=549
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and in different capture files; throw in some heuristics to try to
figure out whether the 4-byte header is:
1) PPP-over-HDLC (some version of ISDN4BSD?);
2) big-endian AF_ value (BSD on big-endian platforms);
3) little-endian AF_ value (BSD on little-endian platforms);
4) two octets of 0 followed by an Ethernet type (Linux, at least
on little-endian platforms, as mutated by "libpcap").
Make a separate Wiretap encapsulation type, WTAP_ENCAP_NULL,
corresponding to DLT_NULL.
Have the PPP code dissect the frame if it's PPP-over-HDLC, and have
"ethertype()" dissect the Ethernet type and the rest of the packet if
it's a Linux-style header; dissect it ourselves only if it's an AF_
value.
Have Wiretap impose a maximum packet size of 65535 bytes, so that it
fails more gracefully when handed a corrupt "libpcap" capture file
(other capture file formats with more than a 16-bit capture length
field, if any, will have that check added later), and put that size in
"wtap.h" and have Ethereal use it as its notion of a maximum packet
size.
Have Ethereal put up a "this file appears to be damaged or corrupt"
message box if Wiretap returns a WTAP_ERR_BAD_RECORD error when opening
or reading a capture file.
Include loopback interfaces in the list of interfaces offered by the
"Capture" dialog box, but put them at the end of the list so that it
doesn't default to a loopback interface unless there are no other
interfaces. Also, don't require that an interface in the list have an
IP address associated with it, and only put one entry in the list for a
given interface (SIOCGIFCONF returns one entry per interface *address*,
not per *interface* - and even if you were to use only IP addresses, an
interface could conceivably have more than one IP address).
Exclusively use Wiretap encapsulation types internally, even when
capturing; don't use DLT_ types.
svn path=/trunk/; revision=540
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is the only file that uses them. I hope to avoid some compiler warnings
with this.
svn path=/trunk/; revision=512
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write them in "libpcap" format, but the mechanism can have other formats
added.
When creating the temporary file for a capture, use "create_tempfile()",
to close a security hole opened by the fact that "tempnam()" creates a
temporary file, but doesn't open it, and we open the file with the name
it gives us - somebody could remove the file and plant a link to some
file, and, if as may well be the case when Ethereal is capturing
packets, it's running as "root", that means we write a capture on top of
that file.... (The aforementioned changes to Wiretap let you open a
capture file for writing given an file descriptor, "fdopen()"-style,
which this change requires.)
svn path=/trunk/; revision=509
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want to read the next file with the same filter that you used on the
last file.
In the "File/Open" dialog box, parse the read filter before trying to
open the file, and if the parse fails, leave the dialog box up so the
user still has the filter and file name around and can try to fix the
problem.
Keep the compiled read filter attached to the "capture_file" structure,
so you don't have to reparse it on a "File/Reload".
svn path=/trunk/; revision=497
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reason for the failure, and have it do the checks to make sure the file
being opened is a plain file or a pipe.
Have "open_cap_file()" make use of that.
Don't automatically set "last_open_dir" if a "-r" flag was specified on
the command line - do so only if the file in question could actually be
opened.
svn path=/trunk/; revision=495
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it's called after "open_cap_file()" has been called, and is always
passed the file name passed to "open_cap_file()", and that file name is
stored as "cf->filename", so "read_cap_file()" can just use
"cf->filename" as the pathname of the file.
svn path=/trunk/; revision=494
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The former, which used to be called by "load_cap_file()", now just opens
the file and, if the open succeeds, closes any capture file we
previously had open, reinitializes any protocols that need
reinitialization, and saves information about the new capture file in
the "capture_file" structure to which it was passed a pointer. The
latter reads the file already opened by "read_cap_file()".
For "File/Open", call "open_cap_file()" before dismissing the file
selection box; if it fails, "open_cap_file()" will have popped up a
message box complaining about it - just return, leaving the file
selection box open so the user can, after dismissing the message box,
either try again with a different file name, or dismiss the file
selection box. (Other file selection boxes should be made to work the
same way.) If "open_cap_file()" succeeds, dismiss the file selection
box, and read the capture file in.
svn path=/trunk/; revision=492
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