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Support reloading a Lua FileHandler when this is in use for a
loaded capture file. Prompt to save the file if having unsaved
changes because the file must be reloaded.
Fixes #17615
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Implement little endian support for tvb_get_bits family of functions.
The big/little endian refers to bit numbering within an octet. In big
endian, the most significant bit is considered bit 0, while in little
endian the least significant bit is considered bit 0.
Add encoding parameters to proto tree bits format family functions.
Specify ENC_BIG_ENDIAN in all dissectors using these functions except in
USB HID that requires ENC_LITTLE_ENDIAN to work correctly.
When formatting bits values, always display most significant bit on the
leftmost position regardless of the encoding. This results in no gaps
between octets and makes the displayed value comprehensible.
Close #4478
Fix #17014
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Profile files which is only used in Qt is not automatically registered
during startup and must be explicit registered.
Add profile_register_persconffile() to handle this registration.
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Use the new API with dot11decrypt debug.
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Besides the obvious limitation of being unavailable on Windows,
the standard is vague about getopt() and getopt_long() has many
non-portable pitfalls and buggy implementations, that increase
the maintainance cost a lot. Also the GNU libc code currently
in the tree is not suited for embedding and is unmaintainable.
Own maintainership for getopt_long() and use the musl implementation
everywhere. This way we don't need to worry if optreset is available,
or if the $OPERATING_SYSTEM version behaves in subtly different ways.
The API is under the Wireshark namespace to avoid conflicts with
system headers.
Side-note, the Mingw-w64 9.0 getopt_long() implementation is buggy
with opterr and known to crash. In my experience it's a headache to
use the embedded getopt implementation if the system provides one.
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Exports (DLL) epan_set_always_visible() to make it accessible for plugins.
This enables post dissection taps to access all fields.
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Allocate the root node in the same pool as the list itself, and make
that pool explicit so we can pass the pinfo scope instead of using the
global packet pool.
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A few of them just needed scratch memory, so allocate and free it
manually after doing any exception-raising checks.
A few others were returning memory, and needed conversion to accept a
wmem scope argument.
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Use compute_options_size() to get the total size of all the options, and
use write_options() to write out the options for those blocks, as we do
for other blocks.
Get rid of wtap_block_option_get_value_size() and
wtap_block_get_options_size_padded(); they're no longer needed, and
their notion of an option's "size" is "size in a pcapng file", so that
doesn't belong in code that's intended to support all file types.
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That way, add-on modules to handle block types not handled by the core
pcapng code can use pcap_process_options() to process a block's options
and can use the routines to handle the "standard" option value types to
handle particular options.
Also, allow both everything-is-little-endian and
everything-is-big-endian Custom Block types in pcap_process_options().
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- Make sure reassembly requests & errors are properly propagated from
any point in the PDU, no matter how many sub-structure levels.
- Handle the sub-dissection methods as well:
- Ensure the sub-dissection methods handle errors from previous calls.
- Reduce the error handling needed in sub-dissector implementations.
- Add missing sub-dissection methods for list, set, and map.
- Add the handling of sub-structure.
- Handle Compact protocol in addition to the existing binary protocol.
- Include and improve MR !3171
- Handle reassembly the same way as for binary protocol.
- Handle sub-dissection with the same functions.
=> Sub-dissectors only depend on .thrift files.
Additional changes:
- Use of constants instead of hard-coded values.
- Removed U64 support (never supported by thrift code generator, only
referenced in the C++ thrift library header but not supported in reality.
- Removed references to UTF-8 and UTF-16 string for the same reason.
- Replaced references to UTF-7 string with just string (same reason).
- Replaced references to byte with i8 as the documentation explicitly
states that byte is a compatibility name.
Documentation reference:
- https://thrift.apache.org/developers
- https://thrift.apache.org/docs/idl.html
- https://github.com/apache/thrift/blob/master/doc/specs/thrift-compact-protocol.md
- https://erikvanoosten.github.io/thrift-missing-specification/
- https://diwakergupta.github.io/thrift-missing-guide/
Closes #16244
Additional changes:
- Add authors and improve consistency
- Fix typo and clarify documentation
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Bug 17478 was caused by `wtap_rec.block` being allocated for each
packet, but not freed when it was done being used -- typically at the
end of a loop.
Rather than requiring each caller of `wtap_read()` to know to free a
member of `rec`, I added a new function `wtap_rec_reset()` for a
slightly cleaner API. Added calls to it everywhere that seemed to make
sense.
Fixes #17478
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Used to write custom logging functions.
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This utility function is useful outside of epan. Move it to wsutil
and export the interface.
The move isn't completely clean as it requires duplicating two small
inline functions but that was necessary to avoiding moving too much at
once.
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wmem_epan_scope wmem_file_scope, and wmem_packet_scope are still in
epan.
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We have two format_size()s, with and without wmem scoped memory.
Move the wmem version to wsutil and add a convenience macro to
use g_malloc()ed memory.
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This header was installed incorrectly to epan/wmem_scopes.h.
Instead of creating additional installation rules for a single
header in a subfolder (kept for backward compatibility) just
rename the standard "epan/wmem/wmem.h" include to
"epan/wmem_scopes.h" and fix the documentation.
Now the header is installed *correctly* to epan/wmem_scopes.h.
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This allows wmem to be used from other libraries, namely wsutil.
It is often the case that a funtion exists in wsutil and cannot
be used with a wmem scope, requiring some code duplication or
extra memory allocations, or vice-versa, code in epan cannot be
moved to wsutil because it has a wmem dependency.
To this end wmem is moved to wsutil. Scope management remains part
of epan because those scope semantics are specific to dissection.
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Related to #17465 and !3526
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"User" sounds as if the blocks belong to the user; at most, the current
user might have modified them directly, but they might also have, for
example, run a Lua script that, unknown to them, modified comments.
Also, a file might have "user comments" added by a previous user, who
them wrote the file and and provided it to the current user.
"Modified" seems a bit clearer than "changed".
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Mostly functioning proof of concept for #14329. This work is intended to
allow Wireshark to support multiple packet comments per packet.
Uses and expands upon the `wtap_block` API in `wiretap/wtap_opttypes.h`.
It attaches a `wtap_block` structure to `wtap_rec` in place of its
current `opt_comment` and `packet_verdict` members to hold OPT_COMMENT
and OPT_PKT_VERDICT option values.
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This functionality has been added in d2a660d8, where its limitations
are described.
Improvements:
* the Substream index menu now properly filters for available stream numbers;
* Follow Stream selects the first stream in the current packet
Known issue (which is still there): if a packet contains multiple QUIC
streams, then we will show data also from streams other than the selected
one (see #16093)
Note that there is no way to follow a QUIC connection.
Close #17453
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Initialiaze the cmdarg error stream earlier.
Dumpcap also needs to know earlier if it is running in capture
child mode.
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This includes as little as possible in the assertion header, so
that it can be included globally in every file without pulling
any unwanted definitions. In particular pulling stdlib.h is
avoided because that can have side effects if it wants to
include non-portable extensions.
It is possible to have side-effects from include glib.h too, for
example because of G_LOG_DOMAIN.
These side-effects are usually avoidable with careful ordering
of pre-processor directives but with multiple levels of indirections
it can be hard to track. Better to make it robust to these kinds
of failures in the first place.
Also integrate with our logger for a cohesive experience (but
keep it a private dependency).
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Also add dissection for more containers
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The --log-debug and --log-noisy now accepts a '!' to invert the
match and disable the debug (noisy respectively) log level for
the listed domains.
Note this is different from --log-domains, that option
enables/disables the entire log domain itself, regardless of log
level.
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This is intended to replace logging in dissectors that has a
debug level with #ifdef DEBUG_foo and an extra level guarded
by a #ifdef DEBUG_EXTRA_foo.
But generally it can be used as another level of granularity
for debugging output, to avoid flooding the log with too
much information with typical usage.
Rename the filter functions without the unnecessary 'str'
suffix.
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Option --log-debug or WIRESHARK_LOG_DEBUG is a list
of domains that are set to a "debug" log level. This
takes precedence over the normal log level and domain
filter options.
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Enviroment variable WIRESHARK_LOG_FATAL and command line
option --log-fatal set the fatal log level. Messages with
fatal or highr priority cause the program to abort. By
default the fatal level is "error", but it can be set to
"critical" or "warning" with this option.
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It is to tvb_reported_length_remaining() as
tvb_ensure_captured_length_remaining() is to
tvb_captured_length_remaining() - it throws an exception if the offset
is out of range.
(Note that an offset that's just past the end of the {reported,
captured} data is *not* out of range, it just means that there is no
data remaining. Anything *past* that is out of range and thus invalid.)
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Remove ws_log_fprint.
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Use standard buffered I/O instead of printing to a string.
This is more efficient, cleaner and allows custom output per stream.
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A domain filter can be given in the environment variable
'WS_LOG_DOMAINS' or in a command-line options "--log-domains".
The filter is specified as a comma separated case insensitive list,
for example:
./tshark --log-domains=main,capture
Domain data type switches from an enum to a string. There is no
constaint on adding new domains, neither in code or at runtime.
The string format is arbitrary, only positive matches will produce
output.
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Also tweak format for readability.
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The circuit API was removed and replaced with the conversation
"_by_id" API that uses a single uint32 value by commit
800b26edbe34e135cc9be1d4395db2c13ae1213f
Remove the lingering references to circuits from the stream API,
since it's just used with conversations now.
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