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
way we don't keep two copies of the fragments in memory until the file is
closed.
wmem is probably a better alternative to this.
svn path=/trunk/; revision=47897
PI_ERROR to PI_NOTE. (If FreeBSD's been living with the wrong behavior for
years then apparently it doesn't cause interop problems.)
svn path=/trunk/; revision=46401
Done on general principles altho none of the cases
changed would have actually resulted in an infinite
loop because a Bounds error would eventually occur.
svn path=/trunk/; revision=45462
Also (for a few files):
- create/use some extended value strings;
- remove unneeded #include files;
- remove unneeded variable initialization;
- re-order fcns slightly so prefs_reg_handoff...() at end, etc
svn path=/trunk/; revision=44438
DATA chunk: having them in both places is helpful when looking at the
messages but having them separate is helpful when graphing the RTTs.
svn path=/trunk/; revision=43406
(I used PPID 0xffffffff as an end-of-list marker so that PPID can no longer
be used in this dialog; if someone starts using that PPID then we'll have
to put a count of PPIDs in pinfo.)
svn path=/trunk/; revision=42991
trunk/epan/dissectors/packet-sctp.c: In function ‘dissect_add_outgoing_streams_parameter’:
trunk/epan/dissectors/packet-sctp.c:1175:9: error: variable ‘length’ set but not used [-Werror=unused-but-set-variable]
trunk/epan/dissectors/packet-sctp.c: In function ‘dissect_add_incoming_streams_parameter’:
trunk/epan/dissectors/packet-sctp.c:1195:9: error: variable ‘length’ set but not used [-Werror=unused-but-set-variable]
svn path=/trunk/; revision=42025
make Save-As/Displayed/All-Packets save not only the displayed packets but
also any other packets needed (e.g., for reassembly) to fully dissect the
displayed packets.
This works only for the "All packets" case; choosing only the Selected packet,
the Marked packets, or a range of packets would require actually storing which
packets depend on which (too much memory) or going through the packet list many
times (too slow). Also, this behavior is always the case: you can't save the
displayed packets without their dependencies (I don't see why this would be
desirable).
So far this is done for SCTP and things using the reassembly routines (TCP has
been tested).
The Win32 dialog was modified but hasn't been tested yet.
One confusing aspect of the UI is that the Displayed count in the Save-As
dialog does not match the number of displayed packets. (I tried renaming the
button "Displayed + Dependencies" but it looked too big.) The tooltip tries
to explain this and the fact that this works only in the All-Packets case;
suggestions for improvement are welcome.
Implementation details:
Dissectors (or the reassembly code) can list frames which were needed to
build the current frame's tree. If the current frame passes the display
filter then each listed frame is marked as "depended upon" (this takes up the
last free frame_data flag).
When performing a Save-As/Displayed/All-Packets then choose packets which
passed the dfilter _or_ are depended upon.
svn path=/trunk/; revision=41216
ASCONF and ASCONF_ACK chunks have a "Sequence Number" field (RFC 5061, 4.1.1
and 4.1.2). The dissector wrongly calls it "Serial number". The attached patch
fixes this issue.
svn path=/trunk/; revision=40140
Add the checksum info to the tree even when !tree so that the expert_info
summary... "icon"... in the lower-left corner is correct.
svn path=/trunk/; revision=39460
1. If there's no character encoding (ENC_ASCII, ...) specified
then use ENC_ASCII.
2. For all but FT_UINT_STRING, always use ENC_NA
(replacing any existing True/1/FALSE/0
/ENC_BIG_ENDIAN/ENC_LITTLE_ENDIAN).
svn path=/trunk/; revision=39426
Specifically: Replace FALSE|0 and TRUE|1 by ENC_BIG_ENDIAN|ENC_LITTLE_ENDIAN as
the encoding parameter for proto_tree_add_item() calls which directly reference
an item in hf[] which has a type of:
FT_BOOLEAN
FT_IPv4
FT_EUI64
FT_GUID
FT_UINT_STRING
Also: For type FT_ITv6 use ENC_NA. (This was missed in SVN #39260)
svn path=/trunk/; revision=39328
FT_NONE
FT_BYTES
FT_IPV6
FT_IPXNET
FT_OID
Note: Encoding field set to ENC_NA only if the field was previously TRUE|FALSE|ENC_LITTLE_ENDIAN|ENC_BIG_ENDIAN
svn path=/trunk/; revision=39260
Condense all SCTP CRC routines to wsutil/crc32.[ch]. Also made
crc32_ccitt_table not explicitly accessible (must use crc32_ccitt_table_lookup).
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6298
svn path=/trunk/; revision=39233
retranmissions (in COL_INFO). (Obviously this only works if TSN analysis is
enabled.)
This should make it more obvious to users which chunks are retransmissions and
will help avoid confusing the subdissector(s).
svn path=/trunk/; revision=36159
do the same as the non-tvb equivalents but take a TVB and an offset instead
of a pointer to an array of bytes.
Their purpose is to prevent (many) dissectors from doing:
ip_to_str(tvb_get_ptr(...)).
(About the names and the location: I like the names as they are but the names
imply that they should live in tvbuff.c. That would make some sense but
I didn't want to pull to_str.h into tvbuff.c...)
svn path=/trunk/; revision=35519
fragment->len was left unitialized.)
Also (unrelated): save a couple of calls to tvb_reported_length() since the
value is already stored in a variable.
svn path=/trunk/; revision=35485
