the same value, as an open might return handle XXX, handle XXX might
then be closed, and a subsequent handle might return handle XXX, and we
want to keep the two handles distinct to avoid, for example, displaying
handles closed before they're opened.
In policy handle open replies, store the handle name only if the
operation succeeded. We can now do that without parsing the packet
twice.
Have "dissect_nt_policy_hnd()" optionally return, through a pointer, the
protocol tree item for the handle, so that its caller can decorate the
item with the name of the handle - that's done on opens, where we do
that only if the operation succeeds.
svn path=/trunk/; revision=7787
adds 2 levels to the tree. Fix calls to it not to add 1 for that level.
The NT and LM challenges in a NETWORK_INFO structure are opaque arrays
of bytes, not Unicode strings; dissect them as such, adding a new
routine "dissect_ndr_counted_byte_array()" for that purpose.
Get rid of some extra colons in names - the colon is put there if a
string is appended, so putting a colon in there explicitly gives double
colons.
Decorate some higher-level tree nodes with strings.
svn path=/trunk/; revision=7107
Rename "dissect_ndr_element_array()" to "dissect_ndr_character_array()",
move it out of "packet-dcerpc-nt.c" to "packet-dcerpc.c", and have it
use the standard DCE RPC array max count/offset/count fields rather than
their own private versions of those fields. Give it an option to create
a subtree, and an argument to specify the field to use for the actual
data buffer, and export it.
Move the routines for handling arrays of "char" and "wchar" as strings
out of "packet-dcerpc-nt.c" to "packet-dcerpc.c".
Add a routine to handle an array of "char" as an opaque blob of bytes.
Use "dissect_ndr_character_array()" to dissect character strings in MAPI
(the strings in question are ASCII, not Unicode), and use the routine to
handle an array of "char" as an opaque blob of bytes to dissect
encrypted data (again, it's bytes, not 16-bit quantities). Show them as
encrypted data, not unknown data.
Use "dissect_ndr_character_array()" to dissect a form name in
"dissect_form_name()" in the SPOOLSS dissector.
svn path=/trunk/; revision=7091
Give dissect_nt_sec_desc() and dissect_nt_access_mask() a specific rights
function parameter for dissecting specific access rights.
Fix callers in packet-smb.c to use the new interface.
svn path=/trunk/; revision=7086
functions with something a little less confusing.
We now have two sets of functions to dissect strings:
- dissect_ndr_wchar_array() which dissects NDR arrays of wide characters
(uint32, uint32, uint32, buffer)
- dissect_ndr_counted_string() which dissects a "counted string"
(uint16, uint16, pointer to array of wchar)
There are three contexts for dissecting counted strings:
1. "in-line" using dissect_ndr_counted_string()
2. as a callback to dissect_ndr_pointer()
3. as a callback to dissect_ndr_pointer_cb()
Context 2 is used when you have a pointer to a counted string.
Context 3 is when you wish to perform some special processing with the
returned string.
svn path=/trunk/; revision=7068
be used to help out in most DCERPC strings. The cb_str_postprocess()
function reads the callback_args and either appends the value of the
string to the COL_INFO field, appends it to the NDR pointer item, or
saves the string to dcv->private_data. Calling cb_str_postprocess()
with CB_STR_ITEM is the same as calling dissect_ndr_pointer() with
levels = 0.
Renamed some of the pointer dissection functions with a suffix of _cb
and created helpers of the original which call the _cb function with
NULL args. This should help minimise the amount of code changes in
the bulk of the DCERPC dissectors.
svn path=/trunk/; revision=7016
of the DCERPC dissector instead of creating a dummy protocol to hang
the ett and hf values off.
Make the open and close frame values in NT policy handles FT_FRAMENUM's
so the "Go to Corresponding Frame" menu item can be used on them.
svn path=/trunk/; revision=6995
"dissect_ndr_uint16s()"; "dissect_ndr_uint16s()" is always passed a null
pointer, "dissect_dcerpc_uint16s()" is only called by
"dissect_ndr_uint16s()", and the pointer returned through "pdata" is
*NOT* guaranteed to be aligned on a 16-bit boundary so we don't want to
tempt people to blithely dereference that pointer.
svn path=/trunk/; revision=6699
pointers.
The first argument to "sscanf()" is a "const char *"; don't cast const
pointers to "char *" when passing them to "sscanf()".
Assign the result of "tvb_get_ptr()" to const pointers, not non-const
pointers.
Make the "pdata" argument to various DCE routines a const pointer.
svn path=/trunk/; revision=6688
- combine proto_tree_add_text() and proto_tree_append_text() calls in the
access mask dissector
- make the specific access bits dissector functions return void instead of
an offset
I think Samba has the create user reply wrong. There is perhaps a uint32
marked as unknown that shouldn't be there. Removing this parses all the
captures I have.
svn path=/trunk/; revision=6057
generic, standard and specific mode bits. A protocol dissector can pass in
it's own function for dissecting the specific mode bits, if known.
svn path=/trunk/; revision=6053
into two - one that stores request/reply frame numbers and another
that associates a text name with a policy handle.
Removed all calls to prs_policy_hnd() and converted to calls to
dissect_nt_policy_hnd().
svn path=/trunk/; revision=5772
add arguments to specify whether the policy handle is being
opened or closed, and don't set the "open frame" for the handle
unless it's being opened and don't set the "close frame" for the
handle unless it's being closed;
store the policy handle before fetching it, so that an open or
close is marked appropriately in the protocol tree on the first
pass;
if the policy handle has a name associated with it, put that
name into the top-level item for the policy handle.
In "packet-dcerpc-spoolss.c":
get rid of aun unused variable;
make "setjob_commands[]" static, as it's not used outside
"packet-dcerpc-spoolss.c";
put a "VALS()" call around the reference to "setjob_commands",
to squelch compiler warnings;
give the SPOOLSS return code field the appropriate
"value_string" array.
svn path=/trunk/; revision=5448
(also registry and srvsvc?) pipe dissectors.
Also added some helper routines for decoding a range of uint8s. These map
nicely to the dissect_{dcerpc,ndr}_foo() format with the addition of a
length parameter, but aren't really part of the NDR specification and are
probably only going to be used in the NT dcerpc dissectors.
svn path=/trunk/; revision=5421
frame number arguments, and elements in data structures, unsigned,
display them with "%u" rather than "%d", and use 0, rather than -1, as
"not known".
svn path=/trunk/; revision=5223
"packet-dcerpc-nt.c", and registers "dcerpc_smb_init()" as an
initialization routine. Take the ett_ registration out of the latter
routine, and also take out the "do this only once" stuff.
Get rid of the initialization routines for netlogon, samr, and spoolss;
they just call "dcerpc_smb_init()", which is now an initialization
routine of its own.
The policy hash initialization should be done before every capture, so
it should be done in an initialization routine, and should not do any
"do this only once" stuff. It should also be called only once before
every capture, rather than 3 times.
The ett_ initialization should, however, be done at the same time all
other ett_ initialization is done - at protocol registration time - so
it should be done in a "proto_register_" routine.
This fixes a bug I saw wherein
1) the tree for Unicode strings was open by default
and
2) if you closed one and then exited, Ethereal would crash.
The problem is that "proto_register_subtree_array()" doesn't expand the
array, it just bumps the number of registered ett_ values; the array is
allocated in "proto_init()". As such, if you register ett_ values with
"proto_register_subtree_array()" *after* "proto_init()" is called - and,
even for the first capture, initialization routines are called after
"proto_init()" is called - you will get ett_ numbers that go past the
number of elements in the array.
Move the declaration of "ett_nt_unicode_string" to "packet-dcerpc-nt.h",
as it's exported from "packet-dcerpc-nt.c".
Get rid of the declaration of "dcerpc_smb_init()" in
"packet-dcerpc-nt.h", and make it static, as it's no longer called from
outside "packet-dcerpc-nt.c".
svn path=/trunk/; revision=5196
- rewrote request/response hashing code and moved it into
packet-dcerpc-nt.c for use by other dcerpc/smb dissectors
- rewrote policy handle hashing code as above, with nifty improvements
- moved check for unparsed data and end of frame into a function
- fixed matching of printername to handle in addprinterex
svn path=/trunk/; revision=5014
neatly aligned on a 2-byte or a 4-byte boundary, and there is no
guarantee that a misaligned pointer can be dereferenced without getting
a fault.
Furthermore, there is no guarantee that, even if you *can* dereference a
pointer to a 2-byte or 4-byte quantity in a packet, the resulting number
you get back is in the right byte order; the data in the packet might
have a different byte order from the machine on which you're running.
Therefore, we change "prs_uint8s()", "prs_uint16s()", and
"prs_uint32s()" to return the starting offset, in the tvbuff, of the
collection of 8-bit, 16-bit, or 32-bit integral values, rather than a
pointer to the raw packet data, and change their callers to fetch the
data using "tvb_get_guint8()", "tvb_get_letohs()", and
"tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be
little-endian here). We also change "fake_unicode()" to take a tvbuff
and an offset, rather than a data pointer, as arguments, and to use
"tvb_get_letohs()" to fetch the Unicode characters (again, we assume
little-endian Unicode).
This requires "fake_unicode()" to establish a cleanup handler, so we
don't leak memory if it throws an exception.
We also make "fake_unicode()" use "g_malloc()" to allocate its buffer
(we weren't checking for allocation failures in any case; with
"g_malloc()", we'll abort on an allocation failure - if we can come up
with a cleverer way of handling them, fine), and the matching frees to
use "g_free()". (We also insert some missing frees....)
Fix some formats to print unsigned quantities with "%u", not "%d".
Don't append text to items in the tree for non-string values in
"dissect_ndr_nt_STRING_string()".
svn path=/trunk/; revision=4986
"dissect_ndr_nt_UNICODE_STRING_string()", in
"samr_dissect_connect2_server()"; that eliminates an unnecessary extra
level of protocol tree.
That removes the last call to "dissect_ndr_nt_UNICODE_STRING_string()";
eliminate that routine.
In "dissect_ndr_nt_UNICODE_STRING()", initially create the subtree with
the name of the field as a string, so that if an exception is thrown
before the name is set, the subtree won't show up as blank when
displayed or printed. Also pass in the name to "dissect_ndr_pointer()",
so the same happens for subtrees below it. Append only the string data,
not its name, to items up the tree, as the name was put in when the item
was created. Also, when adding a colon before the string, put a space
after the colon, as is done elsewhere in Ethereal.
When appending additional strings, put the blank before the new string,
not after it.
In "dissect_ndr_nt_STRING()", put the subtree into the string with the
name of the field, rather than just "String". Pass in that name to
"dissect_ndr_pointer()", so subtrees below it get a name when they're
initially created.
Get rid of colons in the name string passed to "dissect_ndr_pointer()"
in some calls. Supply a non-null name string in more calls to
"dissect_ndr_pointer()", and fix some calls to pass in the name of the
field being handed to "dissect_ndr_pointer()".
There's no need to fetch the entire "header_field_info" structure for a
protocol field in order to get the field's name - just use
"proto_registrar_get_name()" to get the name.
Use a length of -1, not 0, when creating a subtree whose length will be
set when the dissection of the items under the subtree is complete; that
way, if an exception is thrown while dissecting the items - which means
the item goes past the end of the tvbuff - the item will refer to all
data to the end of the tvbuff, rather than referring to nothing.
Fix a typo in the name of the "hf_samr_unknown_string" field.
svn path=/trunk/; revision=4912
bitmap and make the function not static.
This bitmap is present in other RPC protocols for NT services as well
besides SAMR.
svn path=/trunk/; revision=4889
DOS error codes to the table of them, and exporting that table to other
dissectors for protocols using DOS error codes.
svn path=/trunk/; revision=4470
Tim Potter