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
string (and pass g_free to g_hash_table_new_full to free it).
This means callers don't have to worry about the scope of the memory they pass
in, and fixes https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9296
svn path=/trunk/; revision=52977
It'd be actually good idea to seperate packet_info data (packet.c) from epan_dissect_t (epan.c),
but this rule is already violated.
Strict seperation could allow for example allow multiple dissection on the same epan_dissect_t
(I think it was idea behind it), but it's not working.
svn path=/trunk/; revision=52705
a typedef of a *pointer* to the struct, not the struct itself, which are
different sizes.
This doesn't show up under valgrind because the length isn't checked in that
case, everything gets subsumed in valgrind's malloc/free hooks.
Fixes https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9264
svn path=/trunk/; revision=52560
should be freed when it is destroyed. This requires splitting packet_init in
two: the hash table which must be created before protocol registration, and the
caching of common protocol handles, which must happen after registration.
svn path=/trunk/; revision=51329
the various name resolvers; put those two routines next to each other.
Add generic addr_resolv_init() and addr_resolv_cleanup() routines which call
all of those internal routines.
Call the generic init/cleanup routine from epan_init() and epan_cleanup().
Create the hash tables for each name resolver in those initialization routines
in order to avoid having to repeatedly check if the table is already created
or not (and to avoid glib warnings if we neglected to perform that check):
http://www.wireshark.org/lists/wireshark-dev/201308/msg00012.html
Don't clean up hostnames in init_dissection(): it's done already in cleanup_dissection().
Don't initialize hostnames in cleanup_dissection(): it's done already in init_dissection().
svn path=/trunk/; revision=51191
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
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
Expert info "fields" can now be registered/addressed by name. Right now, the basic framework allows expert info fields to become "display filters". However more could be done, like user preferences overriding default severity level, speeding up expert info dialog load time by not needing to redissect a file, etc.
Long term goal is to have all expert_info filterable and have the functionality of expert_add_info_format() include the "registered index". expert_add_info_format_text() is the workaround until all current calls to expert_add_info_format() have been updated with either expert_add_info() or expert_add_info_format_text(). Then the remaining expert_add_info_format_text() will be renamed to expert_add_info_format().
svn path=/trunk/; revision=49559
first fragment of a non-reassembled packet, and we know the length the
packet would have if it were reassembled, this field holds the length of
the fragment, and the "reported length" field shows the length the
packet would have if it were reassembled, so going past the end of the
fragment but staying within the length of the reassembled packet can be
reported as "dissection would have worked if the packet had been
reassembled" rather than "the packet is too short, so it was probably
malformed".
Add a FragmentBoundsError exception, thrown in the "dissection would
have worked if the packet had been reassembled" case.
Add a new tvb_new_subset_length_fragment() routine to create a new
subset tvb with specified fragment and reported lengths. Use it in the
CLNP dissector.
Add some more sanity checks in the CLNP dissector.
svn path=/trunk/; revision=48917
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
resolution information between capture files so that we don't leak host
entries from one file to another (e.g. embarassing-host-name.example.com
from file1.pcapng into a name resolution block in file2.pcapng).
host_name_lookup_cleanup and host_name_lookup_init must now be called
after each call to se_free_all. As a result we now end up reading our
various name resolution files much more than we should.
svn path=/trunk/; revision=45511
registration tables, and use g_free as the value_destroy_func. This saves us
from manually freeing the value when we remove an item, and prevents us from
leaking memory when we accidentally overwrite an existing item.
svn path=/trunk/; revision=44814
Evan Huus