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2021-02-23wiretap: rename wtap_register_file_type_subtypes().Guy Harris1-1/+1
It only registers one file type/subtype, so rename it to wtap_register_file_type_subtype(). That will also force plugins to be recompiled; that will produce compile errors for some plugins that didn't change to match the new contents of the file_type_subtype_info structure. Also check to make sure that the registered file type/subtype supports at least one type of block; a file type/subtype that doesn't return *any* blocks and doesn't permit *any* block types to be written is not very useful. That should also catch most if not all other plugins that didn't change to match the new contents of the file_type_subtype_info structure. Don't make errors registering a file type/subtype fatal; just complain, don't register the bogus file type/subtype, and drive on.
2021-02-21wiretap: have file handlers advertise blocks and options supported.Guy Harris1-1/+10
Instead of a "supports name resolution" Boolean and bitflags for types of comments supported, provide a list of block types that the file type/subtype supports, with each block type having a list of options supported. Indicate whether "supported" means "one instance" or "multiple instances". "Supports" doesn't just mean "can be written", it also means "could be read". Rename WTAP_BLOCK_IF_DESCRIPTION to WTAP_BLOCK_IF_ID_AND_INFO, to indicate that it provides, in addition to information about the interface, an ID (implicitly, in pcapng files, by its ordinal number) that is associated with every packet in the file. Emphasize that in comments - just because your capture file format can list the interfaces on which a capture was done, that doesn't mean it supports this; it doesn't do so if the file doesn't indicate, for every packet, on which of those interfaces it was captured (I'm looking at *you*, Microsoft Network Monitor...). Use APIs to query that information to do what the "does this file type/subtype support name resolution information", "does this file type/subtype support all of these comment types", and "does this file type/subtype support - and require - interface IDs" APIs did. Provide backwards compatibility for Lua. This allows us to eliminate the WTAP_FILE_TYPE_SUBTYPE_ values for IBM's iptrace; do so.
2021-02-17wiretap: more work on file type/subtypes.Guy Harris1-3/+8
Provide a wiretap routine to get an array of all savable file type/subtypes, sorted with pcap and pcapng at the top, followed by the other types, sorted either by the name or the description. Use that routine to list options for the -F flag for various commands Rename wtap_get_savable_file_types_subtypes() to wtap_get_savable_file_types_subtypes_for_file(), to indicate that it provides an array of all file type/subtypes in which a given file can be saved. Have it sort all types, other than the default type/subtype and, if there is one, the "other" type (both of which are put at the top), by the name or the description. Don't allow wtap_register_file_type_subtypes() to override any existing registrations; have them always register a new type. In that routine, if there are any emply slots in the table, due to an entry being unregistered, use it rather than allocating a new slot. Don't allow unregistration of built-in types. Rename the "dump open table" to the "file type/subtype table", as it has entries for all types/subtypes, even if we can't write them. Initialize that table in a routine that pre-allocates the GArray before filling it with built-in types/subtypes, so it doesn't keep getting reallocated. Get rid of wtap_num_file_types_subtypes - it's just a copy of the size of the GArray. Don't have wtap_file_type_subtype_description() crash if handed an file type/subtype that isn't a valid array index - just return NULL, as we do with wtap_file_type_subtype_name(). In wtap_name_to_file_type_subtype(), don't use WTAP_FILE_TYPE_SUBTYPE_ names for the backwards-compatibility names - map those names to the current names, and then look them up. This reduces the number of uses of hardwired WTAP_FILE_TYPE_SUBTYPE_ values. Clean up the type of wtap_module_count - it has no need to be a gulong. Have built-in wiretap file handlers register names to be used for their file type/subtypes, rather than building the table in init.lua. Add a new Lua C function get_wtap_filetypes() to construct the wtap_filetypes table, based on the registered names, and use it in init.lua. Add a #define WSLUA_INTERNAL_FUNCTION to register functions intended only for internal use in init.lua, so they can be made available from Lua without being documented. Get rid of WTAP_NUM_FILE_TYPES_SUBTYPES - most code has no need to use it, as it can just request arrays of types, and the space of type/subtype codes can be sparse due to registration in any case, so code has to be careful using it. wtap_get_num_file_types_subtypes() is no longer used, so remove it. It returns the number of elements in the file type/subtype array, which is not necessarily the name of known file type/subtypes, as there may have been some deregistered types, and those types do *not* get removed from the array, they just get cleared so that they're available for future allocation (we don't want the indices of any registered types to changes if another type is deregistered, as those indicates are the type/subtype values, so we can't shrink the array). Clean up white space and remove some comments that shouldn't have been added.
2021-02-14wiretap: register most built-in file types from its module.Guy Harris1-1/+18
Remove most of the built-in file types from the table in wiretap/file_access.c and, instead, have the file types register themselves, using wtap_register_file_type_subtypes(). This reduces the source code changes needed to add a new file type from three (add the handler, add the file type to the table in file_access.c, add a #define for the file type in wiretap/wtap.h) to one (add the handler). (It also requires adding the handler's source file to wiretap/CMakeLists.txt, but that's required in both cases.) A few remain because the WTAP_FILE_TYPE_SUBTYPE_ #define is used elsewhere; that needs to be fixed. Fix the wiretap/CMakefile.txt file to scan k12text.l, as that now contains a registration routine. In the process, avoid scanning files that don't implement a file type and won't ever have a registration routine. Add a Lua routine to fetch the total number of file types; we use that in some code to construct the wtap_filetypes table, which we need to do in order to continue to have all the values that used to come from the WTAP_FILE_TYPE_SUBTYPE_ types. While we're at it, add modelines to a file that lacked them.
2019-07-26HTTPS (almost) everywhere.Guy Harris1-1/+1
Change all wireshark.org URLs to use https. Fix some broken links while we're at it. Change-Id: I161bf8eeca43b8027605acea666032da86f5ea1c Reviewed-on: https://code.wireshark.org/review/34089 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2018-11-20wsutil: rename some wsjson functionsPeter Wu1-1/+1
Rename wsjson_unescape_json_string to json_decode_string_inplace (inspired by the g_base64_decode_inplace name). Rename wsjson_is_valid_json to json_validate (inspired by g_unichar_validate). Ideally json_parse is inlined with its user (sharkd_session.c), but that requires exporting the jsmn_init and jsmn_parse functions... Hence the dependency on jsmn.h remains in wsjson.h. Change-Id: I7ecfe3565f15516e9115cbd7e025362df2da5416 Reviewed-on: https://code.wireshark.org/review/30731 Petri-Dish: Peter Wu <peter@lekensteyn.nl> Tested-by: Petri Dish Buildbot Reviewed-by: Anders Broman <a.broman58@gmail.com>
2018-11-10wiretap: fix truncated reads while reading compressed file formatsPeter Wu1-66/+6
A lot of file dissectors (pcapng, json, etc.) assumed that the packet size is equal to the file size. This is not true if the file was compressed and could result in silently truncating reads or failing to open a file (if the compressed file is larger than the actual data). Observe that a lot of file dissectors are simply copies of each other. Move the fixed implementation to wtap.c and reuse the methods everywhere else. While at it, avoid an unnecessary large allocation/read in ruby_marshal. Change-Id: I8e9cd0af9c4d1bd37789a3b509146ae2182a5379 Reviewed-on: https://code.wireshark.org/review/30570 Petri-Dish: Peter Wu <peter@lekensteyn.nl> Reviewed-by: Dario Lombardo <lomato@gmail.com> Tested-by: Dario Lombardo <lomato@gmail.com> Tested-by: Petri Dish Buildbot Reviewed-by: Michael Mann <mmann78@netscape.net>
2018-05-21json: fix typo.Dario Lombardo1-1/+1
Change-Id: I36c4d0e15dae2f3cbf0efe1f3e1b0e82433cc3cd Reviewed-on: https://code.wireshark.org/review/27681 Reviewed-by: Dario Lombardo <lomato@gmail.com> Petri-Dish: Dario Lombardo <lomato@gmail.com> Tested-by: Petri Dish Buildbot Reviewed-by: Anders Broman <a.broman58@gmail.com>
2018-04-21wsutil: convert one leftover function in wsjson.Dario Lombardo1-1/+1
Change-Id: I8d65389dfd6bf373e751e3373d9f22d733d9b5e9 Reviewed-on: https://code.wireshark.org/review/27069 Petri-Dish: Dario Lombardo <lomato@gmail.com> Tested-by: Petri Dish Buildbot Reviewed-by: Anders Broman <a.broman58@gmail.com>
2018-04-21wsutil: rename wsjsmn to wsjson.Dario Lombardo1-1/+1
This puts more distance between the caller and the underlying library. At the moment we're using libjsmn, but other libraries (like json-glib) could be used. Change-Id: I1431424a998fc8188ad47b71d6d95afdc92a3f9e Reviewed-on: https://code.wireshark.org/review/27055 Petri-Dish: Dario Lombardo <lomato@gmail.com> Tested-by: Petri Dish Buildbot Reviewed-by: Anders Broman <a.broman58@gmail.com>
2018-02-09Generalize wtap_pkthdr into a structure for packet and non-packet records.Guy Harris1-10/+10
Separate the stuff that any record could have from the stuff that only particular record types have; put the latter into a union, and put all that into a wtap_rec structure. Add some record-type checks as necessary. Change-Id: Id6b3486858f826fce4b096c59231f463e44bfaa2 Reviewed-on: https://code.wireshark.org/review/25696 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2018-02-08replace SPDX identifier GPL-2.0+ with GPL-2.0-or-later.Dario Lombardo1-1/+1
The first is deprecated, as per https://spdx.org/licenses/. Change-Id: I8e21e1d32d09b8b94b93a2dc9fbdde5ffeba6bed Reviewed-on: https://code.wireshark.org/review/25661 Petri-Dish: Anders Broman <a.broman58@gmail.com> Petri-Dish: Dario Lombardo <lomato@gmail.com> Reviewed-by: Anders Broman <a.broman58@gmail.com>
2018-01-20wiretap: use SPDX identifiers (partial work).Dario Lombardo1-13/+1
Change-Id: I28436e003ce7fe31d53e6663f3cc7aca00845e4b Reviewed-on: https://code.wireshark.org/review/25392 Petri-Dish: Dario Lombardo <lomato@gmail.com> Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com> Reviewed-by: Gerald Combs <gerald@wireshark.org>
2016-09-30wsutil: split libjsmn.Dario Lombardo1-1/+1
The libjsmn was imported into the tree and enhanced with a new function. This change splits it into the "original" libjsmn and an addictional module wsjsmn that contains the new function. This will make easier to port within the tree future versions of the library. Change-Id: I3f1caa91bee462e0767e5e18d0b6a10f0b1cad32 Reviewed-on: https://code.wireshark.org/review/17963 Petri-Dish: Peter Wu <peter@lekensteyn.nl> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Peter Wu <peter@lekensteyn.nl>
2016-04-03Include json.h with quotes, not angle brackets.Guy Harris1-1/+1
Change-Id: I9fdb38ca724ec1a76126a956c7f7b07fd4c1ddb0 Reviewed-on: https://code.wireshark.org/review/14798 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2016-02-25Clean up modelines and indentation.Guy Harris1-1/+1
HT tab stops are set every 8 spaces on UN*X; UN*X tools that treat an HT character as tabbing to 4-space tab stops, or that even are configurable but *default* to 4-space tab stops (I'm looking at *you*, Xcode!) are broken. tab-width: 4, tabstop=4, and tabSize=4 are errors if you ever expect anybody to look at your file with a UN*X tool, and every text file will probably be looked at by a UN*X tool at some point, so Don't Do That. Adjust indentation to reflect the mode lines. Change-Id: Icf0831717de10fc615971fa1cf75af2f1ea2d03d Reviewed-on: https://code.wireshark.org/review/14150 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2015-11-07Check for read errors in the open routine.Guy Harris1-4/+15
While we're at it, rename a variable to avoid colliding with the read() routine. Change-Id: I6629ec761f48751f34a2e7d04180d7583ad85710 Reviewed-on: https://code.wireshark.org/review/11626 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2015-02-17Added JSON native file support.Dario Lombardo1-0/+138
libjsmn has also been moved from epan/ to wsutil/ to make it visible from wiretap. Change-Id: I59abb3419acb1baa83194b38152d3651ed5c123c Bug: 10878 Reviewed-on: https://code.wireshark.org/review/6716 Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>