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Commit Graph

57 Commits (8f4eff5f5030ae921d3e68cd6b6a40ee7bd52215)

Author SHA1 Message Date
Jason Ish e2b04635a7 Bug 1281 - Accept rule content with lengths greater than 255. 10 years ago
Victor Julien 866b3a1c5d content: reorder DetectContentData member, shrinking the struct from 64 to 48 bytes. 12 years ago
Victor Julien 6ba52230ed Update DetectContentDataParse to reflect the actual data types content uses. 12 years ago
Anoop Saldanha 0b5d277254 code cleanup for all content based keywords. 13 years ago
Last G 8ae11f73b2 Added parentheses to fix Eclipse static code analysis 
Fixed bug in action priority (REJECT_DST had lowest prio)
 13 years ago
Anoop Saldanha 51c9955c79 fix for bug #577. 
If a pattern has matched on mpm, don't re-inspect it later, subject to certain
conditions met by the pattern - namely, not negated, right chop, no replacet
attached to it.
 13 years ago
Anoop Saldanha 988c92f71c http user agent keyword + mpm + inspection + fast pattern support added 13 years ago
Victor Julien cdba2f50d1 Various fixes and improvements based on feedback by Coverity analyzer. 14 years ago
Anoop Saldanha ab35b98f76 code cleanup - remove DetectContentGetLastPattern. Replace it with SigMatchGetLastSMFromLists 14 years ago
Anoop Saldanha d85ab5ab1f code cleanup - remove DetectContentFindNextApplicableSM 14 years ago
Anoop Saldanha 802350f65a code cleanup - remove DetectContentHasPrevSMPattern 14 years ago
Anoop Saldanha 9652c3672d code cleanup - remove SigMatchGetLastPattern 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 14 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 14 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.
 14 years ago
Anoop Saldanha ed3b44b3b5 fix parsing content keywords. We are more strict now. All content keywords need to be enclosed in double quotes. Better validation for sid, priority and rev keywords 14 years ago
Eric Leblond a85dc9b0e2 Add support for replace keyword. 
This patch adds support for the replace keyword. It is used with
content to change selected part of the payload. The major point
with this patch is that having a replace keyword made necessary
to avoid all stream level check because we need to access to the
could-be-modified packet payload.

One of the main difficulty is to handle complex signature. If there is
other content check, we must do the substitution when we're sure all
match are valid. The patch adds an attribute to the thread context
variable to be able to deal with recursivity of the match function.

Replace is only activated in IPS mode and apply only to raw match.
 14 years ago
Anoop Saldanha 35f3eafa5e byte extract added to the engine. Detection support added for packet payload, uri and dce detection engines 14 years ago
Anoop Saldanha 966119b6aa support for http_raw_uri keyword + mpm engine 15 years ago
Anoop Saldanha c9897a44a4 fast pattern support for http_cookie. Also support relative modifiers 15 years ago
Anoop Saldanha bbbedaf963 fast pattern support for http_method. Also support relative modifiers 15 years ago
Anoop Saldanha 7ec0382774 support fast pattern for http raw header. Also support relative modifiers for http raw header 15 years ago
Anoop Saldanha c61c68fd36 mpm and fast pattern support for http_header. Also support relative modifiers for http_header 15 years ago
Anoop Saldanha 0aa5cffb12 fast pattern support for http_client_body keyword added. Also mpm support for http_client_body added 15 years ago
Anoop Saldanha 68b78664fa Add unittests for checking content flags. Fix indentation in PopulateMpmAddPatternToMpm(). Also fix DETECT_CONTENT_IS_SINGLE 15 years ago
Anoop Saldanha eade60f0fd make some name changes. break PopulateMpm(). Set the avoid mpm double check flags 15 years ago
Anoop Saldanha 4883efd0f6 unifying content structure - uricontent now uses DetectContentData 15 years ago
Anoop Saldanha a85fa6b792 support for fast_pattern only and fast_pattern:offset,length. Also support the new option for engine-analysis 15 years ago
Victor Julien fc248ca7a1 Many small performance updates. 15 years ago
Victor Julien 57b098e98c Add padding to commonly used data structures. 15 years ago
Gurvinder Singh 07e10681d6 fixed a typo in the detect-content.h 15 years ago
Victor Julien 7a427ec7f4 Switch to pattern id based results checking in the mpm. Move app layer proto detection towards a more signature based approach. 15 years ago
William Metcalf ce01927515 Import of GPLv2 Header 050410 15 years ago
Pablo Rincon 9209eaeaf6 Fix some error messages and coding style at uri/content modifiers 15 years ago
Pablo Rincon 86185ecd97 Enable spm inspection with precooked pattern contexts on content, uricontent and http_client_body (we will also add this to http_header when it gets commited) 16 years ago
Pablo Rincon 227fe516a0 Adding Boyer Moore context to content patterns, should speed up the search 16 years ago
Pablo Rincon c7350a8ac6 Fixing some naming convention issues and incorrect error messages 16 years ago
Pablo Rincon b708d7f65d Adding Uricontent inspection with spm. Modifiers for uricontent are now supported 16 years ago
Victor Julien 80dc4f1dbe Further simplify content api: merge flags that indicate a next relative match, remove chunks as they are unnecessary now, make negated a bitflag. 16 years ago
Victor Julien dd846c9b0e Remove all search code from the pattern matchers, cleanup mpm api, remove unused http code, more cleanups. 16 years ago
Victor Julien bef70a04ce First stage of detect engine redesign: equal patterns share id's, search phase no longer used, new match verification phase. 16 years ago
Victor Julien 50e41817a7 Share content id's between identical patterns. 16 years ago
Victor Julien b7bac14040 Fixup code to compile with -Wall -Werror -Wextra -Wno-unused-parameter compiler options. 16 years ago
Gurvinder Singh 71a77bf8d6 removeh http_cookie flag 16 years ago
Gurvinder Singh a0f184866c http_cookie keywork support 16 years ago
Anoop Saldanha 6ca5dbc9e9 Support fast_pattern modifier keyword for content 16 years ago
Anoop Saldanha 1c7ac13c25 Support for negated content 16 years ago
Pablo Rincon 9a3c21fbf3 Updating real unittests. Small fix on TestWithinDistanceOffsetDepth to skip to the next DETECT_CONTENT SigMatch. Adding some checks on within/distance setups. 16 years ago
Pablo Rincon f233f9fa31 Adding detect_content chunks handling for max_pattern_length and unittests. Updating modifiers to use it. 16 years ago
Pablo Rincon bdf119ade3 Adding window and isdataat keyword and some unittests 16 years ago