Commit Graph

95 Commits

Author SHA1 Message Date
Guy Harris ee5ca25d31 Include files from the "epan" directory and subdirectories thereof with
"epan/..." pathnames, so as to avoid collisions with header files in any
of the directories in which we look (e.g., "proto.h", as some other
package has its own "proto.h" file which it installs in the top-level
include directory).

Don't add "-I" flags to search "epan", as that's no longer necessary
(and we want includes of "epan" headers to fail if the "epan/" is left
out, so that we don't re-introduce includes lacking "epan/").

svn path=/trunk/; revision=4586
2002-01-21 07:37:49 +00:00
Guy Harris 23319ff023 Move the pointer to the "column_info" structure in the "frame_data"
structure to the "packet_info" structure; only stuff that's permanently
stored with each frame should be in the "frame_data" structure, and the
"column_info" structure is not guaranteed to hold the column values for
that frame at all times - it was only in the "frame_data" structure so
that it could be passed to dissectors, and, as all dissectors are now
passed a pointer to a "packet_info" structure, it could just as well be
put in the "packet_info" structure.

That saves memory, by shrinking the "frame_data" structure (there's one
of those per frame), and also lets us clean up the code a bit.

svn path=/trunk/; revision=4370
2001-12-10 00:26:21 +00:00
Guy Harris 75cc056222 Attach a descriptive name field type and base to dissector tables; that
specifies how the selector values used as keys in those tables are to be
displayed, and the title to use when displaying the table.

Use that information in the code to display the initial and current
entries of various dissector tables.

Have the dissector for BACnet APDUs register itself by name, and have
the BACnet NPDU dissector call it iff the BAC_CONTROL_NET bit isn't set,
rather than doing it with a dissector table.

svn path=/trunk/; revision=4358
2001-12-08 06:41:48 +00:00
Guy Harris bced8711f6 Make "dissector_add()", "dissector_delete()", and "dissector_change()"
take a dissector handle as an argument, rather than a pointer to a
dissector function and a protocol ID.  Associate dissector handles with
dissector table entries.

svn path=/trunk/; revision=4308
2001-12-03 04:00:26 +00:00
Ed Warnicke fcd5b352af Moved from using dissect_data() to using call_dissector()
svn path=/trunk/; revision=4269
2001-11-26 04:52:51 +00:00
Ed Warnicke e361502b70 Added hooks to allow the registration of heuristic subdissectors of
http.

svn path=/trunk/; revision=4217
2001-11-18 02:28:15 +00:00
Guy Harris 32b1270b4d Change from Thomas Wittwer to register HTTP dissector by name, for other
dissectors to call.

svn path=/trunk/; revision=3905
2001-09-04 01:01:48 +00:00
Guy Harris 8412393197 From Joerg Mayer: explicitly fill in all members of a
"header_field_info" structure, including the ones that are later set by
the routines to register fields.

svn path=/trunk/; revision=3561
2001-06-18 02:18:27 +00:00
Guy Harris a4e137f630 Remove more "CHECK_DISPLAY_AS_DATA()" calls and "pinfo->current_proto ="
statements.

Move the setting of the Protocol column in various dissectors before
anything is fetched from the packet, and also clear the Info column at
that point in those and some other dissectors, so that if an exception
is thrown, the columns don't reflect the previous protocol.

svn path=/trunk/; revision=2932
2001-01-22 08:54:08 +00:00
Guy Harris b7a0290c66 Provide a way by which protocols that run atop HTTP, such as IPP, can
register their port as being for XXX-over-HTTP; the HTTP dissector
registers that port in the "tcp.port" table as an HTTP port, and
registers it in its *own* table with the dissector and protocol provided
to it.

Parse the HTTP MIME headers regardless of whether we're building a
protocol tree or not; we have to do so in order to find the offset of
the payload, to hand to an XXX-over-HTTP dissector.

svn path=/trunk/; revision=2872
2001-01-11 06:30:54 +00:00
Guy Harris 918fb90728 "dissect_http()" doesn't need to be global any more; make it static.
svn path=/trunk/; revision=2870
2001-01-11 05:41:47 +00:00
Guy Harris fc72ce7336 There's no need to register port 631 twice for IPP; do so only once.
Leave notes for a future rethinking of the way we handle protocols that
run atop HTTP.

svn path=/trunk/; revision=2869
2001-01-11 05:36:09 +00:00
Guy Harris 43ccfd8054 Add an additional "protocol index" argument to "{old_}dissector_add()",
"{old_}heur_dissector_add()", "{old_}conv_dissector_add()", and
"register_dissector()", so that an entry in those tables has associated
with it the protocol index of the protocol the dissector handles (or -1,
if there is no protocol index for it).

This is for future use in a number of places.

(Arguably, "proto_register_protocol()" should take a dissector pointer
as an argument, but

	1) it'd have to handle both regular and heuristic dissectors;

	2) making it take either a "dissector_t" or a union of that and
	   a "heur_dissector_t" introduces some painful header-file
	   interdependencies

so I'm punting on that for now.  As with other Ethereal internal APIs,
these APIs are subject to change in the future, at least until Ethereal
1.0 comes out....)

svn path=/trunk/; revision=2849
2001-01-09 06:32:10 +00:00
Guy Harris 0e7c1de08a Have "proto_register_protocol()" build a list of data structures for
protocols, in addition to adding structures to the list of filterable
fields.  Give it an extra argument that specifies a "short name" for the
protocol, for use in such places as

	pinfo->current_proto;

	the dialog box for constructing filters;

	the preferences tab for the protocol;

and so on (although we're not yet using it in all those places).

Make the preference name that appears in the preferences file and the
command line for the DIAMETER protocol "diameter", not "Diameter"; the
convention is that the name in question be all-lower-case.

Make some routines and variables that aren't exported static.

Update a comment in the ICP dissector to make it clear that the
dissector won't see fragments other than the first fragment of a
fragmented datagram.

svn path=/trunk/; revision=2810
2001-01-03 06:56:03 +00:00
Guy Harris c3211e8eeb Support for HTTP methods added by GENA (the uPnP protocol), and for the
HTTP-based SSDP protocol, from David Hampton.

svn path=/trunk/; revision=2808
2001-01-03 03:40:29 +00:00
Guy Harris 0d178f826a Initialize "http_type" to HTTP_OTHERS before calling
"is_http_request_or_reply()", so that if "is_http_request_or_reply()"
decides the line is part of a request or a response it'll set "*type"
(which it does only if "*type" is HTTP_OTHERS).

svn path=/trunk/; revision=2690
2000-11-21 22:40:40 +00:00
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 ee1b884ee9 Tvbuffify the STP dissector, have it register itself and have the LLC
dissector call it through a handle, and make it static.

Give "dissect_data()" an "offset" argument, so dissectors can use it to
dissect part of the packet without having to cook up a new tvbuff.

Go back to using "dissect_data()" to dissect the data in an IPP request.

svn path=/trunk/; revision=2651
2000-11-16 07:35:43 +00:00
Guy Harris b606de7ea3 Tvbuffify the IPP dissector, and have it register itself rather than
being a global function.

The HTTP dissector should set "pinfo->current_proto" to HTTP even if we
consider the packet to be IPP, so that if we run past the end of a
tvbuff while dissecting HTTP stuff it's reported as a problem with HTTP,
not IPP.

svn path=/trunk/; revision=2648
2000-11-15 08:27:14 +00:00
Guy Harris 9985115b8b Use "tvb_offset_exists()" rather than "tvb_length_remaining()" to check
whether there's any data left in the tvbuff starting at a specified
offset.

svn path=/trunk/; revision=2636
2000-11-13 08:58:17 +00:00
Guy Harris 01a890cf95 Tvbuffify the HTTP, NNTP, RSH, RTSP, and Telnet dissectors.
Add "tvb_find_line_end()", to find a CR and/or LF-terminated line in a
tvbuff and return its length and the offset of the character after the
line end, for the use of those dissectors.

Add "tvb_strncaseeql()", which is like "tvb_strneql()" except that it
does a case-insensitive comparison.

svn path=/trunk/; revision=2590
2000-11-09 10:56:33 +00:00
Guy Harris 73241c3231 Patch from Isaac Wilcox to do case-sensitive checks for HTTP methods and
to look for a space after the method name.

svn path=/trunk/; revision=2515
2000-10-19 07:38:01 +00:00
Guy Harris 041981783b Don't put any "\r" and/or "\n" at the end of an HTTP request or reply
into the "Info" column.

svn path=/trunk/; revision=2468
2000-09-30 05:37:07 +00:00
Gilbert Ramirez 9941aabd64 Move format_text(), get_token_len(), and fine_line_end(), into strutil.c
This keeps tvbuff.c generic; it doesn't have to pull in packet.h and all
of it's included files.

svn path=/trunk/; revision=2409
2000-09-11 16:16:13 +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
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 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
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 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 690903fef1 "http_tree" doesn't need to be static; make it local to
"dissect_http()".

svn path=/trunk/; revision=1666
2000-02-23 20:55:33 +00:00
Laurent Deniel 83059250d7 Fix HTTP request & response.
svn path=/trunk/; revision=1665
2000-02-23 19:47:14 +00:00
Gilbert Ramirez ddfa11e870 Create a header file for every packet-*.c file. Prune the packet.h file.
This change allows you to add a new packet-*.c file and not cause a
recompilation of everything that #include's packet.h

Add the plugin_api.[ch] files ot the plugins/Makefile.am packaging list.

Add #define YY_NO_UNPUT 1 to the lex source so that the yyunput symbol
is not defined, squelching a compiler complaint when compiling the generated
C file.

svn path=/trunk/; revision=1637
2000-02-15 21:06:58 +00:00
Guy Harris 3e067b812c Fix files that had Gilbert's old e-mail address or that didn't have my
forwarding e-mail address.

svn path=/trunk/; revision=1522
2000-01-22 06:22:44 +00:00
Guy Harris b5b4e3d57a Patch from Jerry Talkington to:
treat CONNECT as an HTTP request;

	add DELETE and OPTIONS as request names.

Make the order of names in the AUTHORS file match that of the man page
and the About box.

svn path=/trunk/; revision=1231
1999-12-06 20:27:40 +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
Laurent Deniel 6f0c90c1b8 Add display filters.
svn path=/trunk/; revision=864
1999-10-16 20:30:14 +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 7b2ff4bfe9 Use "dissect_data()" to put in the raw HTTP data, rather than doing it
ourselves; that means we don't have to duplicate the stuff
"dissect_data()" does (including saying "1 byte" rather than "1 bytes" -
"dissect_data()" does that, but we weren't doing that), and also means
that when you print a packet, the data gets dumped.

svn path=/trunk/; revision=670
1999-09-12 18:46:57 +00:00
Guy Harris f5733e9aee Fix a typo in "Hypertext".
svn path=/trunk/; revision=404
1999-07-30 00:57:15 +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
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 2ffe6f0ffe Changes to the routines to help decode text-oriented protocols (FTP,
SMTP, POP, HTTP, etc.) for the benefit of Richard Sharpe's FTP and POP
dissectors.

svn path=/trunk/; revision=233
1999-03-30 04:41:01 +00:00
Gilbert Ramirez ef3dfe2077 Removed all references to gtk objects from packet*.[ch] files. They now
reference the protocol tree with struct proto_tree and struct proto_item
objects. That way, the packet decoding source code file can be used with
non-gtk packet decoders, like a curses-based ethereal, e.g. I also re-arranged
some of the information in packet.h to more appropriate places (like other
packet-*.[ch] files).

svn path=/trunk/; revision=223
1999-03-23 03:14:46 +00:00
Guy Harris 10d6bc0996 Add a first cut at HTTP decoding.
svn path=/trunk/; revision=187
1999-02-12 09:03:42 +00:00