39 Commits (127ef8f903f2f0cf9101c7992d3aa7e3dcbb6bee)

Author	SHA1	Message	Date
Eric Leblond	1f07d1521e	Fix realloc error handling ... This patch is fixing realloc error handling. In case of a realloc failure, it free the initial memory and continue existing error handling. The patch has been obtained via the following semantic patch and a bit oh hand editing: @@ expression x, E; identifier f; @@ f(...) { + void *ptmp; <+... - x = SCRealloc(x, E); + ptmp = SCRealloc(x, E); ... when != x - if (x == NULL) + if (ptmp == NULL) { + SCFree(x); + x = NULL; ... - } + } else { + x = ptmp; + } ...+> } @@ expression x, E; identifier f; statement ES; @@ f(...) { + void *ptmp; <+... - x = SCRealloc(x, E); + ptmp = SCRealloc(x, E); ... when != x - if (x == NULL) ES + if (ptmp == NULL) { + SCFree(x); + x = NULL; + ES + } else { + x = ptmp; + } ...+> } @@ expression x, E; identifier f; @@ f(...) { + void *ptmp; <+... - x = SCRealloc(x, E); + ptmp = SCRealloc(x, E); ... when != x - if (unlikely(x == NULL)) + if (unlikely(ptmp == NULL)) { + SCFree(x); + x = NULL; ... - } + } else { + x = ptmp; + } ...+> } @@ expression x, E; identifier f; statement ES; @@ f(...) { + void *ptmp; <+... - x = SCRealloc(x, E); + ptmp = SCRealloc(x, E); ... when != x - if (unlikely(x == NULL)) ES + if (unlikely(ptmp == NULL)) { + SCFree(x); + x = NULL; + ES + } else { + x = ptmp; + } ...+> }	13 years ago
Anoop Saldanha	a49cbf8a49	Code cleanup. ... Use the MpmAddPattern[CS|CI] wrapper to add patterns to the mpm context. Also use MpmInitCtx() to init the mpm context.	13 years ago
Anoop Saldanha	cfa2cda42b	fix for bug #973. ... An alternative solution for bug #970. For chopped patterns, which in it's whole is a duplicate of another pattern we assign an unique content id.	13 years ago
Anoop Saldanha	8c1e855632	fix for bug #970(ac-gfbs). ... Content strings that are a duplicate of a pattern from another sig, but have a fast_pattern chop being applied, would end up being assigned the same pattern id as the duplicate string. But the string supplied to the mpm would be the chopped string, which might result in the state_table output_state content entry being over-riden by the the fuller string at the final state of the smaller content length, because of which during a match we might end up inspecting the search buffer against the fuller content pattern, instead of the chopped pattern, which would end up being an inspection beyond the buffer bounds.	13 years ago
Anoop Saldanha	92a8b2b738	Unittest to display bug #970(ac-gfbs).	13 years ago
Anoop Saldanha	3c2ddf04c1	Update mpm init ctx to not accept the final cuda_rc_module argument. ... It was a part of our older architecture and is no longer used.	14 years ago
Eric Leblond	e176be6fcc	Use unlikely for error treatment. ... When handling error case on SCMallog, SCCalloc or SCStrdup we are in an unlikely case. This patch adds the unlikely() expression to indicate this to gcc. This patch has been obtained via coccinelle. The transformation is the following: @istested@ identifier x; statement S1; identifier func =~ "(SCMalloc|SCStrdup|SCCalloc)"; @@ x = func(...) ... when != x - if (x == NULL) S1 + if (unlikely(x == NULL)) S1	14 years ago
Anoop Saldanha	b0b29fb85a	ac-bs and ac-gfbs mem cleanup	15 years ago
Victor Julien	0788656ef7	Silence ac-gfbs debug message.	15 years ago
Eileen Donlon	0bb4ff34b8	added null checks for init_hash to all ac mpms	15 years ago
Anoop Saldanha	419cdc8558	support splitting mpm ctxs based on direction v2	15 years ago
Victor Julien	146ff9d66e	Suppress ac-gfbs debug message being printed at info level.	15 years ago
Anoop Saldanha	6e2c921037	indentation fixes for ac-gfbs	15 years ago
Anoop Saldanha	2eb3aff0af	Further improve compression for ac-gfbs. Character codes shifted to 8 bits from 16/32 bits	15 years ago
Anoop Saldanha	5620844f7d	ac-gfbs fix output presence combination with mod table	15 years ago
Anoop Saldanha	153f2ad3eb	ac-gfbs update. Minor improvement of compression for state 0. Improves performance	15 years ago
Anoop Saldanha	c6cd59bda4	Update ac-gfbs with some rearrangement. Increased performance from 4-10%	15 years ago
Anoop Saldanha	420befb180	Changed my email address to anoopsaldanha at gmail dot com from my current one	15 years ago
Anoop Saldanha	99baf18c8d	updates to ac-gfbs search. Remove unnecessary casting of pointers	15 years ago
Anoop Saldanha	11e7dda59a	updates to ac-gfbs search. Introduce handling cases where state_count is < 32k	15 years ago
Anoop Saldanha	708c4ad055	updates to ac-gfbs search. Combine output presence with mod goto table	15 years ago
Anoop Saldanha	a4ea7e6197	updates to ac-gfbs search. Combine failure table along with mod goto table for better cache perf	15 years ago
Anoop Saldanha	b69ac9514f	updates to ac-gfbs search. Disable handling < 65k states separately. Now any state count would be given same treatment	15 years ago
Anoop Saldanha	efb4c27b1f	updates to ac-gfbs search. Add new unittests + fix cases where we have 2 patterns that are same but one is CS and other CI + Use SCMemcmp for state < 65k instead of custom memcmp	15 years ago
Anoop Saldanha	0920296aaa	updates to ac-gfbs search. Remove unnecessary casting of pointers	15 years ago
Anoop Saldanha	d149a5e806	updates to ac-gfbs search. Use SCMemcmp instead of the custom pattern searching used	15 years ago
Anoop Saldanha	47f2d6e07b	updates to ac-gfbs search. Optimize pointer de-referencing for pid_pat_list	15 years ago
Anoop Saldanha	991f6d2d83	updates to ac-gfbs search. Optimize pointer de-referencing for frequently used pointers	15 years ago
Anoop Saldanha	ffb925e3b3	indentation fixes for ac-gfbs	15 years ago
Anoop Saldanha	e9eb0e502c	updates to ac-gfbs search. Handle cases where we have a single entry for a state goto transition, just like how we handle for no entry for a particular state	15 years ago
Anoop Saldanha	63ed36a892	Replace all reallocs with SCReallocs	15 years ago
Anoop Saldanha	4307ea2348	Replace all frees with SCFrees	15 years ago
Anoop Saldanha	13ea299ee0	Replace all mallocs with SCMallocs	15 years ago
pilcrow	ed69eeab14	Safer macro parenthesization and do/while use	15 years ago
Eric Leblond	49adc264bc	Don't print message after SCMalloc failure. ... This patch generated via coccinelle is getting rid of logging message after a SCMalloc failure. They were useless as SCMalloc already displays a message.	16 years ago
Anoop Saldanha	5cc7f90f45	fix hash bug in ac-gfbs. Should reduce the no of patterns added for single context ac-gfbs from a million to a couple of thousands. Also support no case handling. \todo support insertion of final state presence into goto_table and failure table state transitions	16 years ago
Anoop Saldanha	4b2cf7e125	fix ac, ac-gfbs to support new changes to util-mpm.h + remove some junk code	16 years ago
Anoop Saldanha	b9a770740a	add comments and todos for ac and ac-gfbs	16 years ago
Anoop Saldanha	658ff5753d	aho-corasick for the cpu. We have 2 versions of ac. The first MPM_AC uses the delta table and the secone one MPM_AC_GFBS uses the goto-failure table	16 years ago