Add a dissector table indexed by the file type, and, for the
file-type-specific records, have the frame dissector skip the usual
pseudo-header processing, as the pseudo-header has a file-type-specific
record subtype in it, and call the dissector for that file type's
records.
Change-Id: Ibe97cf6340ffb0dabc08f355891bc346391b91f9
Reviewed-on: https://code.wireshark.org/review/1782
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Additional belated followup to gfe195c0c9 per conversation on -dev about the use
of -1 and when we should throw exceptions. See also g867a1827e7.
Should (in theory) permit reverting gfe195c0c9.
Bug:9999
Bug:10030
Change-Id: I56e5f4e5dc12fe82268243d0b113cfc9ff5fdd17
Reviewed-on: https://code.wireshark.org/review/1603
Reviewed-by: Anders Broman <a.broman58@gmail.com>
When printing the protocol list item (which happens for every packet when using
tshark -T) the resulting string is almost guaranteed to be longer than the
default 16 characters. By allocating a bigger buffer right away we avoid some
potentially-expensive reallocs as the string grows.
Change-Id: Iaa35840f66975f03d8f92bbea26979df48bbc887
Reviewed-on: https://code.wireshark.org/review/1601
Reviewed-by: Michael Mann <mmann78@netscape.net>
(Using sed : sed -i '/^ \* \$Id\$/,+1 d')
Fix manually some typo (in export_object_dicom.c and crc16-plain.c)
Change-Id: I4c1ae68d1c4afeace8cb195b53c715cf9e1227a8
Reviewed-on: https://code.wireshark.org/review/497
Reviewed-by: Anders Broman <a.broman58@gmail.com>
bytestring_to_ep_str (now deprecated). Use the new one in a few obvious places.
Also just print directly to the buffer when loading ethernet addresses for
resolution. The straight-to-buffer bytes_to_hexstr seems useful, maybe it
shouldn't be in a private header...
svn path=/trunk/; revision=54270
obvious that the returned string is ephemeral, and opens up the original names
in the API for versions that take a wmem pool (and thus can work in any scope).
svn path=/trunk/; revision=54249
I'm not sold on the name or module the proto_data functions live in, but I believe the function arguments are solid and gives us the most flexibility for the future. And search/replace of a function name is easy enough to do.
The big driving force for getting this in sooner rather than later is the saved memory on ethernet packets (and IP packets soon), that used to have file_scope() proto data when all it needed was packet_scope() data (technically packet_info->pool scoped), strictly for Decode As.
All dissectors that use p_add_proto_data() only for Decode As functionality have been converted to using packet_scope(). All other dissectors were converted to using file_scope() which was the original scope for "proto" data.
svn path=/trunk/; revision=53520
protocol IDs. This is substantially more efficient, which means we can build it
all the time rather than only if tree (in my benchmarks the extra time taken is
not large enough to be statistically significant even over tens of thousands of
packets).
This fixes what was probably a bug in btobex that relied on layer_names for
non-tree dissection. It also enables a much simpler fix for
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9303
svn path=/trunk/; revision=53089
Before this change, curr_layer_num could be off by 1 depending on whether we
generated items for Frame protocol or not, leading to a failure to get the
UDP heuristic dissector identified during first pass
svn path=/trunk/; revision=52897
Original (read from file) comments can be accessed by pkthdr->opt_comment
Keep user comments in seperated BST, add new method for epan session to get it.
svn path=/trunk/; revision=51090
This patch assumes that wtap_phdr interface_id, pack_flags both from initial read and seek read will contain same values.
Please fix if it's not.
svn path=/trunk/; revision=51041
Remove ->prev_cap, for testing purpose also replace ->prev_dis with number of previously displayed frame number.
This patch reduce size of frame_data by 8B (amd64)
This is what (I think) was suggested by Guy in comment 13 (https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5821#c13)
svn path=/trunk/; revision=50765
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
Cast away some implicit 64-bit-to-32-bit conversion errors due to use of
sizeof.
Cast away some implicit 64-bit-to-32-bit conversion errors due to use of
strtol() and strtoul().
Change some data types to avoid those implicit conversion warnings.
When assigning a constant to a float, make sure the constant isn't a
double, by appending "f" to the constant.
Constify a bunch of variables, parameters, and return values to
eliminate warnings due to strings being given const qualifiers. Cast
away those warnings in some cases where an API we don't control forces
us to do so.
Enable a bunch of additional warnings by default. Note why at least
some of the other warnings aren't enabled.
randpkt.c and text2pcap.c are used to build programs, so they don't need
to be in EXTRA_DIST.
If the user specifies --enable-warnings-as-errors, add -Werror *even if
the user specified --enable-extra-gcc-flags; assume they know what
they're doing and are willing to have the compile fail due to the extra
GCC warnings being treated as errors.
svn path=/trunk/; revision=46748
"use of window's own __try {} __finally {} and __except {}
mechanism" along with "macros based on kazlib's exception code"
has problems and does not always work properly.
svn path=/trunk/; revision=45831
This commit reduces size (from 144B to 128B on AMD64) of frame_data structure.
Part of bug 5821: Reduce per-packet memory requirements.
svn path=/trunk/; revision=45071
Add a new WTAP_ENCAP_BACNET_MS_TP_WITH_PHDR encapsulation type, for use
by the EyeSDN file reader; unlike the pcap-encapsulated MS/TP, it
includes a direction indicator. Don't treat WTAP_ENCAP_BACNET_MS_TP as
if it has a direction indicator, as it doesn't; instead, do that for
WTAP_ENCAP_BACNET_MS_TP_WITH_PHDR.
Add some missing entries to encap_table_base for WTAP_ENCAP_ values that
didn't get entries added.
svn path=/trunk/; revision=41969
or other information; WTAP_ENCAP_MTP2_WITH_PHDR is for MTP2 *with* such
a pseudo-header. Use WTAP_ENCAP_MTP2_WITH_PHDR for the EyeSDN captures,
and don't assume there's a pseudo-header if you have WTAP_ENCAP_MTP2.
svn path=/trunk/; revision=41962
by Wiretap, to indicate whether certain fields in that structure
actually have data in them.
Use the "time stamp present" flag to omit showing time stamp information
for packets (and "packets") that don't have time stamps; don't bother
working very hard to "fake" a time stamp for data files.
Use the "interface ID present" flag to omit the interface ID for packets
that don't have an interface ID.
We don't use the "captured length, separate from packet length, present"
flag to omit the captured length; that flag might be present but equal
to the packet length, and if you want to know if a packet was cut short
by a snapshot length, comparing the values would be the way to do that.
More work is needed to have wiretap/pcapng.c properly report the flags,
e.g. reporting no time stamp being present for a Simple Packet Block.
svn path=/trunk/; revision=41185
Graham Bloice