Now that "bytes consumed" can be determined, should tcp_dissect_pdus() take advantage of that?
Should tcp_dissect_pdus return length (bytes consumed)? There are many dissectors that just call tcp_dissect_pdus() then return tvb_length(tvb). Seems like that could all be rolled into one.
svn path=/trunk/; revision=53198
The intention is to aid in the removal of pinfo->private_data use as well as static global variables in a dissector. For now, all calls to call_ber_oid_callback have the data parameter set to NULL.
svn path=/trunk/; revision=52994
convert all existing UAT update callbacks to use glib memory instead of
ephemeral memory for that string.
UAT code paths are entirely distinct from packet dissection, so using ephemeral
memory was the wrong choice, because there was no guarantees about when it would
be freed.
The move away from emem still needs to be propogated deeper into the UAT code
itself at some point.
Net effect: remove another bunch of emem calls from dissectors, where replacing
with wmem would have caused assertions.
svn path=/trunk/; revision=52854
explicit, and frees up the "generic" names (like tvb_memdup) for new signatures
that take the appropriate wmem pool.
Majority of the conversion done with sed.
svn path=/trunk/; revision=52164
These dissectors allocate ephemeral or seasonal memory in UAT callbacks, which
really makes no sense because UAT callbacks can occur when there is no packet or
file in scope, making this effectively a leak if the user is fiddling with their
UAT and never opens a capture.
Emem let you get away with this, wmem forces an assertion. Back out the changes
so that the UATs are usable until the code can be properly fixed to not use
out-of-scope allocators.
svn path=/trunk/; revision=50073
found a bunch more asn1 dissectors using emem without ever directly including
the header. Convert those to wmem as well, which involves add a number of
#include directives since dissectors do *not* automatically pull in the wmem
headers.
svn path=/trunk/; revision=50066
epan/show_exception.c, as it's used outside
epan/dissectors/packet-frame.c. Update their callers to include
<epan/show_exception.h> to get their declaration.
Add a CATCH_NONFATAL_ERRORS macro that catches all exceptions that, if
there's more stuff in the packet to dissect after the dissector call
that threw the exception, doesn't mean you shouldn't go ahead and
dissect that stuff. Use it in all those cases, including ones where
BoundsError was inappropriately being caught (you want those passed up
to the top level, so that the packet is reported as having been cut
short in the capture process).
Add a CATCH_BOUNDS_ERRORS macro that catches all exceptions that
correspond to running past the end of the data for a tvbuff; use it
rather than explicitly catching those exceptions individually, and
rather than just catching all exceptions (the only place that
DissectorError should be caught, for example, is at the top level, so
dissector bugs show up in the protocol tree).
Don't catch and then immediately rethrow exceptions without doing
anything else; just let the exceptions go up to the final catcher.
Use show_exception() to report non-fatal errors, rather than doing it
yourself.
If a dissector is called from Lua, catch all non-fatal errors and use
show_exception() to report them rather than catching only
ReportedBoundsError and adding a proto_malformed item.
Don't catch exceptions when constructing a trailer tvbuff in
packet-ieee8023.c - just construct it after the payload has been
dissected, and let whatever exceptions that throws be handled at the top
level.
Avoid some TRY/CATCH/ENDTRY cases by using checks such as
tvb_bytes_exist() before even looking in the tvbuff.
svn path=/trunk/; revision=47924
tvbuff and runs to the end of the tvbuff? Let me count the ways....
Replace a bunch of different ways of doing that (some incorrect, in that
they're not properly handling tvbuffs where the captured and reported
lengths are different) with tvb_new_subset_remaining().
svn path=/trunk/; revision=47751
implicitly by the #define name and string they were defined to; not all
UATs neatly fit into any of the categories, so some of them were put
into categories that weren't obviously correct for them, and one - the
display filter macro UAT - wasn't put into any category at all (which
caused crashes when editing them, as the GUI code that handled UAT
changes from a dialog assumed the category field was non-null).
The category was, in practice, used only to decide, in the
aforementioned GUI code, whether the packet summary pane needed to be
updated or not. It also offered no option of "don't update the packet
summary pane *and* don't redissect anything", which is what would be
appropriate for the display filter macro UAT.
Replace the category with a set of fields indicating what the UAT
affects; we currently offer "dissection", which applies to most UATs
(any UAT in libwireshark presumably affects dissection at a minimum) and
"the set of named fields that exist". Changing any UAT that affects
dissection requires a redissection; changing any UAT that affects the
set of named fields that exist requires a redissection *and* rebuilding
the packet summary pane.
Perhaps we also need "filtering", so that if you change a display filter
macro, we re-filter, in case the display is currently filtered with a
display filter that uses a macro that changed.
svn path=/trunk/; revision=43603
them and then copying them over). The "all" target to builds these dissectors
now (instead of "generate_files" and/or "copy_files").
asn2wrs's "-O" option now means "the dissector goes in this directory" (rather
than "all output goes in this directory"); it also means that the "-s" (single
output file) option is now required.
Fix things up so that it's possible to build all of the ASN.1 dissectors in
one shot.
Fix building of conformance files when doing out-of-source-tree builds.
Unfortunately "make all" in the asn1 directory always builds something--I think
because of circular depedencies.
svn path=/trunk/; revision=39333
