Commit Graph

30 Commits

Author SHA1 Message Date
Guy Harris 252d55d80f For each column, have both a buffer into which strings for that column
can be put, and a pointer to the string for the column, which might or
might not point to that buffer.

Add a routine "col_set_str()", which sets the string for the column to
the string passed to it as an argument; it should only be handed a
static string (a string constant would be ideal).  It doesn't do any
copying, so it's faster than "col_add_str()".

Make the routines that append to columns check whether the pointer to
the string for the column points to the buffer for the column and, if
not, copy the string for the column to the buffer for the column so that
you can append to it (so you can use "col_set_str()" and then use
"col_append_str()" or "col_append_fstr()").

Convert a bunch of "col_add_str()" calls that take a string constant as
an argument to "col_set_str()" calls.

Convert some "col_add_fstr()" calls that take a string constant as the
only argument - i.e., the format string doesn't have any "%" slots into
which to put strings for subsequent arguments to "col_set_str()" calls
(those calls are just like "col_add_str()" calls).

Replace an END_OF_FRAME reference in a tvbuffified dissector with a
"tvb_length(tvb)" call.

svn path=/trunk/; revision=2670
2000-11-19 08:54:37 +00:00
Guy Harris f9daf4932d Patch from Jack Keane to keep the dissector from looping infintely on
malformed packets.

svn path=/trunk/; revision=2480
2000-10-07 06:58:39 +00:00
Guy Harris 19a14b9e67 Assignments for SHA2 and AES encryption and data integrity schemes, from
Yaniv Kaul.

svn path=/trunk/; revision=2476
2000-10-03 22:49:46 +00:00
Gilbert Ramirez 6b006c76a4 Don't trust data in packet.
svn path=/trunk/; revision=2474
2000-10-02 18:38:50 +00:00
Laurent Deniel cc36f0b931 Add the "Edit:Protocols..." feature which currently only implements
the following:

It is now possible to enable/disable a particular protocol decoding
(i.e. the protocol dissector is void or not). When a protocol
is disabled, it is displayed as Data and of course, all linked
sub-protocols are disabled as well.

Disabling a protocol could be interesting:

- in case of buggy dissectors
- in case of wrong heuristics
- for performance reasons
- to decode the data as another protocol (TODO)

Currently (if I am not wrong), all dissectors but NFS can be disabled
(and dissectors that do not register protocols :-)

I do not like the way the RPC sub-dissectors are disabled (in the
sub-dissectors) since this could be done in the RPC dissector itself,
knowing the sub-protocol hfinfo entry (this is why, I've not modified
the NFS one yet).

Two functions are added in proto.c :

gboolean proto_is_protocol_enabled(int n);
void proto_set_decoding(int n, gboolean enabled);

and two MACROs which can be used in dissectors:

OLD_CHECK_DISPLAY_AS_DATA(index, pd, offset, fd, tree)
CHECK_DISPLAY_AS_DATA(index, tvb, pinfo, tree)

See also the XXX in proto_dlg.c and proto.c around the new functions.

svn path=/trunk/; revision=2267
2000-08-13 14:09:15 +00:00
Laurent Deniel 6a480953a9 Miscellaneous code cleaning
- 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
2000-08-11 13:37:21 +00:00
Guy Harris 56b989e0ad Allow either old-style (pre-tvbuff) or new-style (tvbuffified)
dissectors to be registered as dissectors for particular ports,
registered as heuristic dissectors, and registered as dissectors for
conversations, and have routines to be used both by old-style and
new-style dissectors to call registered dissectors.

Have the code that calls those dissectors translate the arguments as
necessary.  (For conversation dissectors, replace
"find_conversation_dissector()", which just returns a pointer to the
dissector, with "old_try_conversation_dissector()" and
"try_conversation_dissector()", which actually call the dissector, so
that there's a single place at which we can do that translation.  Also
make "dissector_lookup()" static and, instead of calling it and, if it
returns a non-null pointer, calling that dissector, just use
"old_dissector_try_port()" or "dissector_try_port()", for the same
reason.)

This allows some dissectors that took old-style arguments and
immediately translated them to new-style arguments to just take
new-style arguments; make them do so.  It also allows some new-style
dissectors not to have to translate arguments before calling routines to
look up and call dissectors; make them not do so.

Get rid of checks for too-short frames in new-style dissectors - the
tvbuff code does those checks for you.

Give the routines to register old-style dissectors, and to call
dissectors from old-style dissectors, names beginning with "old_", with
the routines for new-style dissectors not having the "old_".  Update the
dissectors that use those routines appropriately.

Rename "dissect_data()" to "old_dissect_data()", and
"dissect_data_tvb()" to "dissect_data()".

svn path=/trunk/; revision=2218
2000-08-07 03:21:25 +00:00
Guy Harris 3cc5187b0c Fix the comment at the beginning of the routine to give the right file
name, and add the RFC number for ISAKMP to it.

Fix the structures for headers to treat all multi-byte quantities as
arrays of bytes; the certificate request header needs to be done that
way, so that it's *not* padded to a multiple of the size of the longest
integral element (the longest integral element is 2 bytes, but the size
of the header is 5 bytes, so certificate requests were being
misdissected), and other structures might require this as well - it also
catches code that doesn't use "pntohl()" or "pntohs()" to get the values
of integral fields bigger than 1 byte.

In fact, it *did* catch some; the configuration attribute header's
"identifier" field was being used without being put in host byte order.
In addition, that field required padding to be aligned on its natural
boundary, but the padding wasn't given as a structure member; given that
the length field was specified as one byte but extracted with
"pntohs()", and that the length field is 2 bytes in the other headers,
it probably should be 2 bytes in this header as well - make it so.

svn path=/trunk/; revision=2101
2000-07-02 03:25:48 +00:00
Guy Harris 283ce59938 Add routines for adding items to a protocol tree that take arguments of
a particular type, rather than taking a varargs list, along the lines of
the "proto_tree_add_XXX_format()" routines.

Replace most calls to "proto_tree_add_item()" and
"proto_tree_add_item_hidden()" with calls to those routines.

Rename "proto_tree_add_item()" and "proto_tree_add_item_hidden()" to
"proto_tree_add_item_old()" and "proto_tree_add_item_hidden_old()", and
add new "proto_tree_add_item()" and "proto_tree_add_item_hidden()"
routines that don't take the item to be added as an argument - instead,
they fetch the argument from the packet whose tvbuff was handed to them,
from the offset handed to them.

svn path=/trunk/; revision=2031
2000-05-31 05:09:07 +00:00
Guy Harris b5a6696946 Support for ISAKMP XAUTH authentication, from Yaniv Kaul.
svn path=/trunk/; revision=1993
2000-05-22 17:59:53 +00:00
Guy Harris 9c90de553c Get rid of the comment before "cfgattrident2str()" explaining why it's
there - it's now called from within "packet-isakmp.c", so there's no
need to explain "this isn't used yet, but it will be in the future"; the
future has arrived....

svn path=/trunk/; revision=1992
2000-05-22 17:56:01 +00:00
Guy Harris 7db4db24be Parsing attributes in Config mode, and support for a Hybrid mode
authentication draft, from Yaniv Kaul.

svn path=/trunk/; revision=1991
2000-05-21 19:59:02 +00:00
Guy Harris 4a9e0166ce Small fix from Yaniv Kaul.
svn path=/trunk/; revision=1972
2000-05-17 08:23:50 +00:00
Guy Harris a74c39f9b1 Put in a comment to note that "cfgattrident2str()" was put in for use
when we parse ISAKMP data attributes - we don't do that yet, which is
why it's not currently used.

svn path=/trunk/; revision=1942
2000-05-11 20:36:14 +00:00
Guy Harris bc897cf7d3 Yaniv Kaul's patch to add support for the ISAKMP Configuration Method
(draft-ietf-ipsec-isakmp-mode-cfg-04.txt).

svn path=/trunk/; revision=1941
2000-05-11 18:55:40 +00:00
Gilbert Ramirez 292e38e2c6 Add tvbuff class.
Add exceptions routines.
Convert proto_tree_add_*() routines to require tvbuff_t* argument.
Convert all dissectors to pass NULL argument ("NullTVB" macro == NULL) as
the tvbuff_t* argument to proto_tree_add_*() routines.

dissect_packet() creates a tvbuff_t, wraps the next dissect call in
a TRY block, will print "Short Frame" on the proto_tree if a BoundsError
exception is caught.

The FDDI dissector is converted to use tvbuff's.

svn path=/trunk/; revision=1939
2000-05-11 08:18:09 +00:00
Guy Harris 5f8a1bb8ab If the "encrypted payload" flag is set in an ISAKMP packet, don't
dissect the payload, just report it as "Encrypted payload (N byte(s))".

svn path=/trunk/; revision=1894
2000-04-28 17:53:25 +00:00
Guy Harris 42107e8614 Move calls to "dissector_add()" out of the register routines for TCP and
UDP and into the handoff registration routines for the protocols in
question.

Make the dissectors for those protocols static if they're not called
outside the dissector's source file.

Get rid of header files if all they did was declare dissectors that are
now static; remove declarations of now-static dissectors from header
files that do more than just declare the dissector.

svn path=/trunk/; revision=1823
2000-04-08 07:07:42 +00:00
Guy Harris 7a943b7810 Fix Gerald's e-mail address.
svn path=/trunk/; revision=1437
2000-01-07 22:05:43 +00:00
Guy Harris 10cff1c372 Changes from Dave Chapeskie.
svn path=/trunk/; revision=1224
1999-12-06 03:39:34 +00:00
Guy Harris a7aba0a288 Replace the ETT_ "enum" members, declared in "packet.h", with
dynamically-assigned "ett_" integer values, assigned by
"proto_register_subtree_array()"; this:

	obviates the need to update "packet.h" whenever you add a new
	subtree type - you only have to add a call to
	"proto_register_subtree_array()" to a "register" routine and an
	array of pointers to "ett_", if they're not already there, and
	add a pointer to the new "ett_" variable to the array, if they
	are there;

	would allow run-time-loaded dissectors to allocate subtree types
	when they're loaded.

svn path=/trunk/; revision=1043
1999-11-16 11:44:20 +00:00
Guy Harris 96e79ab6f8 Add a "BYTES_ARE_IN_FRAME()" macro, to test whether there are a
specified number of bytes of captured data in the frame at the specified
offset, and a "IS_DATA_IN_FRAME()" macro, to test whether there are any
bytes of captured data in the frame at the specified offset, and convert
some bounds checks to use them.

Add a dissector for the Internet Printing Protocol.

svn path=/trunk/; revision=685
1999-09-17 05:56:58 +00:00
Guy Harris f93c76fd10 Convert a bunch of uses of "fd->cap_len" to use "pi.captured_len" (or to
use END_OF_FRAME), so that they don't look at stuff in an IP datagram
past the end of the IP datagram (i.e., frame padding).

svn path=/trunk/; revision=584
1999-08-26 07:34:43 +00:00
Gilbert Ramirez 7bd6c15378 Made the protocol (but not the fields) use the new proto_tree routine,
allowing users to filter on the existence of these protocols. I also
added packet-clip.c to the Nmake makefile.

svn path=/trunk/; revision=402
1999-07-29 05:47:07 +00:00
Gilbert Ramirez 601c52f0fb Added support for compiling on win32 with Visual C and 'nmake'. It compiles,
but does not link. Perhaps someone who understands the MS tools can help
out. I made it link a few months ago, but with different version of glib/gtk+.
I can't remember how I made it link.

Most of the compatibility issues were resolved with adding
#ifdef HAVE_UNISTD_H the the source code. Please be sure to add this to all
future code.

svn path=/trunk/; revision=359
1999-07-13 02:53:26 +00:00
Guy Harris da00ae83bf "pntohl()" doesn't actually return a "long" (or an "unsigned long"), it
returns a "guint32", which is an "unsigned int" on all platforms Glib
supports, so print what it returns with "%u", not "%lu".

svn path=/trunk/; revision=349
1999-07-08 06:03:21 +00:00
Gilbert Ramirez 07f42b5b31 Created a new protocol tree implementation and a new display filter
mechanism that is built into ethereal. Wiretap is now used to read all
file formats. Libpcap is used only for capturing.

svn path=/trunk/; revision=342
1999-07-07 22:52:57 +00:00
Guy Harris bec7c4afe5 "pntohl()" doesn't actually return a "long" (or an "unsigned long"), it
returns a "guint32", which is an "unsigned int" on all platforms Glib
supports, so print what it returns with "%u", not "%lu".

svn path=/trunk/; revision=339
1999-07-06 06:10:31 +00:00
Guy Harris 054da75e88 Include "snprintf.h" if necessary - we use "snprintf()".
svn path=/trunk/; revision=309
1999-06-12 09:02:12 +00:00
Gilbert Ramirez 34450a8a35 Added PPPoE, PPTP, GRE, and ISAKMP dissectors.
svn path=/trunk/; revision=303
1999-06-11 15:30:55 +00:00