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Commit Graph

80 Commits (901e99fa951c9735b4d5b256f7a2d47727177226)

Author SHA1 Message Date
Juliana Fajardini 5f4bcfe313 detect/engine: fix typos in assorted files 4 years ago
Philippe Antoine 02f2602dde src: rework includes as per cppclean 4 years ago
Philippe Antoine f30975fb16 app-layer: fix integer warnings 
Ticket: 4516
 4 years ago
Victor Julien 54a6dd09dd detect: pattern id assignment through hash table 
Only consider active part of the pattern for mpm (so consider chop).

Move data structure to hash list table over the custom array logic.
 4 years ago
Victor Julien f6f124f283 detect/engine: support frames 
Implement the low level detect engine support for inspecting frames,
including MPM, transforms and inspect API's.
 5 years ago
Philippe Antoine 7d0a39412b detect: use u32 for InspectionBufferMultipleForList 
So that we do not have an endless loop casting index to
u16 and having more than 65536 buffers in one transaction

Changes for all protocols, even ones where it is impossible
to have such a pattern, so as to avoid bad pattern copy/paste
in the future
 5 years ago
Victor Julien e7b5201016 detect/mpm: remove usused cleanup function 6 years ago
Philippe Antoine 0507d1e8f8 detect: generic structures for mpm with lists 6 years ago
Victor Julien 4dff903b35 detect: introduce pkt mpm engines 
Instead of the hardcode L4 matching in MPM that was recently introduced,
add an API similar to the AppLayer MPM and inspect engines.

Share part of the registration code with the AppLayer.

Implement for the tcp.hdr and udp.hdr keywords.
 7 years ago
Victor Julien ddfcf76c57 detect/engine: make DetectAppLayerMpmRegister decprecated 7 years ago
Victor Julien 91296d1eec detect/prefilter: add de_ctx to registration 9 years ago
Victor Julien efbd901385 detect: move mpm engines into detect engine ctx 
This allows safe registration at runtime.
 9 years ago
Victor Julien a499a44f7a detect: move buffer type map into detect ctx 
Move previously global table into detect engine ctx. Now that we
can register buffers at rule loading time we need to take concurrency
into account.

Move DetectBufferType to detect.h and update DetectBufferCtx API calls
to include a detect engine ctx reference.
 9 years ago
Victor Julien f6e5cb1db6 detect: prefilter/inspect API v2, with transforms 
Introduce InspectionBuffer a structure for passing data between
prefilters, transforms and inspection engines.

At rule parsing time, we'll register new unique 'DetectBufferType's
for a 'parent' buffer (e.g. pure file_data) with its transformations.
Each unique combination of buffer with transformations gets it's
own buffer id.

Similarly, mpm registration and inspect engine registration will be
copied from the 'parent' (again, e.g. pure file_data) to the new id's.

The transforms are called from within the prefilter engines themselves.

Provide generic MPM matching and setup callbacks. Can be used by
keywords to avoid needless code duplication. Supports transformations.

Use unique name for profiling, to distinguish between pure buffers
and buffers with transformation.

Add new registration calls for mpm/prefilters and inspect engines.

Inspect engine api v2: Pass engine to itself. Add generic engine that
uses GetData callback and other registered settings.

The generic engine should be usable for every 'simple' case where
there is just a single non-streaming buffer. For example HTTP uri.

The v2 API assumes that registered MPM implements transformations.

Add util func to set new transform in rule and add util funcs for rule
parsing.
 9 years ago
Victor Julien 26abf5337c detect/mpm: minor cleanup: remove unused function arg 9 years ago
Victor Julien dbd2d7c058 detect: more gracefully handle mpm prepare failure 
Exit with error instead of using the detection engine in a broken state.

Bug #2187
 9 years ago
Victor Julien ab1200fbd7 compiler: more strict compiler warnings 
Set flags by default:

    -Wmissing-prototypes
    -Wmissing-declarations
    -Wstrict-prototypes
    -Wwrite-strings
    -Wcast-align
    -Wbad-function-cast
    -Wformat-security
    -Wno-format-nonliteral
    -Wmissing-format-attribute
    -funsigned-char

Fix minor compiler warnings for these new flags on gcc and clang.
 9 years ago
Victor Julien a1465bc4fa detect-engine-mpm: api cleanup 10 years ago
Victor Julien 779d40cedf detect: remove hardcoded sm_list logic from setup 
Introduce utility functions to aid this.
 10 years ago
Victor Julien 960461f4db fast_pattern: register app layer mpms automatically 
Allow for duplicate registrations for the same list. After the first
registration new calls will be ignored.
 10 years ago
Victor Julien 6dd4dff7b2 mpm: remove empty app_mpms table 10 years ago
Victor Julien 5b2e36a1b0 mpm: add App Layer MPM registery 
Register keywords globally at start up.

Create a map of the registery per detection engine. This we need because
the sgh_mpm_context value is set per detect engine.

Remove APP_MPMS_MAX.
 10 years ago
Victor Julien 9ff5703c49 packet/stream: mpm prefilter engine 10 years ago
Victor Julien ac2c206359 mpm: clean up builtin mpm setup, enable single/full 10 years ago
Victor Julien 6bb2b001a3 mpm: cleanup: move mpm funcs into buffer specific files 10 years ago
Victor Julien e57e7d1b96 mpm: cleanup, remove unused structs and prototypes 10 years ago
Victor Julien c1ad08d11e detect: remove stream pmq array 10 years ago
Victor Julien c87fcb29ff detect mpm: fast_pattern assignment cleanup 10 years ago
Victor Julien 26517b8b61 detect: mpm store frees mpm_ctx' it owns 10 years ago
Victor Julien 102a82fc7b detect: use mpm store for app layer mpms 
Rework app-layer mpm setup and registration to make this possible.
 10 years ago
Victor Julien fac2cc0560 detect: mpm deduplication 
Create hash for mpm's that we can reuse. Have packet/stream mpms
use this.
 10 years ago
Victor Julien 66b3dba676 detect: remove dead code 10 years ago
Victor Julien 14d9ce7b2e detect/mpm: remove unused max_id param from API 10 years ago
Victor Julien 0d3f671b55 detect: constify mpm/detect funcs 10 years ago
Giuseppe Longo 84dc73d9de mpm: implement prefiltering for smtp 11 years ago
Anoop Saldanha cd7b4fac40 remove unused pattern id assignment functions. Goodbye 13 years ago
Victor Julien 43ba5a677e DNS: enable mpm/fast_pattern support for dns_query 13 years ago
Anoop Saldanha a3212f6a0f Minor fixes against the last set of patches for #564, 565, 581 + fp automation. 
Rename struct DetectFigureFPAndId_t_ to DetectFPAndItsId_ and move it's
definition from inside the function where it's used to the global namespace,
as requested on #suricata.

Rename DetectEngineContentModifiedBufferSetup to DetectEngineContentModifierBufferSetup.

Also rename DetectFigureFPAndId() to DetectSetFastPatternAndItsId().

Updated DetectSetFastPatternAndItsId() to not exit on failure and return error.
 14 years ago
Anoop Saldanha 6de8b1ed53 fix for #564. 
Get rid of the hash table, and use a single-one_time_alloc'ed array for
pattern id assignment.
 14 years ago
Anoop Saldanha 4c6efa2d40 Update content id assignment. 
All fp id assignment now happens in one go.
Also noticing a slight perf increase, probably emanating from improved cache
perf.
Removed irrelevant unittests as well.
 14 years ago
Anoop Saldanha 601836d831 Fast pattern setup now configurable in our code. 
You can either enable/disable fp for a particular type + set priority.
 14 years ago
Anoop Saldanha 0b5d277254 code cleanup for all content based keywords. 14 years ago
Anoop Saldanha 3511f91bba Add support for the new keyword - http_raw_host header. 
The corresponding pcre modifier would be 'Z'.
 14 years ago
Anoop Saldanha c4ce19a1be Add support for a new keyword to inspect http_host header. 
The corresponding content keyword would now be - http_host.
The corresponding pcre modifier would be W.
 14 years ago
Anoop Saldanha 7a7cd6999e feature #558. 
Print FP info in rule analysis + other cleanup.
 14 years ago
Anoop Saldanha 988c92f71c http user agent keyword + mpm + inspection + fast pattern support added 14 years ago
Anoop Saldanha 09313cf9bd Support http stat code detection engine, fast pattern(mpm engine included). Fix http stat code setup function. Fix pcre option for stat msg keyword. With this the pcre options for server_body is Q, for stat_msg is Y and for stat_code is S 15 years ago
Anoop Saldanha 2007c2711c Support http stat msg detection engine, fast pattern(mpm engine included). Fix http stat msg setup function. Fix pcre option for stat msg keyword 15 years ago
Anoop Saldanha 419cdc8558 support splitting mpm ctxs based on direction v2 15 years ago
Victor Julien 89f83e714c Introduce http_server_body keyword. 
The http_server_body content modifier modifies the previous content to inspect
the normalized (dechunked, unzipped) http_server_body. The workings are similar
to http_client_body. Additionally, a new pcre flag was introduced "/S".

To facilitate this change the signature flags field was changed to be 64 bit.
 15 years ago