suricata

Commit Graph

Author	SHA1	Message	Date
Ofer Dagan	7627756360	detect/detection_filter: add unique_on option Add optional unique_on {src_port\|dst_port} to detection_filter for exact distinct port counting within the seconds window. Features: - Runtime uses a single 64k-bit (8192 bytes) union bitmap per threshold entry with O(1) updates. - Follows detection_filter semantics: alerting starts after the threshold (> count), not at it. - On window expiry, the window is reset and the current packet's port is recorded as the first distinct of the new window. Validation: - unique_on requires a ported transport protocol; reject rules that are not tcp/udp/sctp or that use ip (protocol any). Memory management: - Bitmap memory is bounded by detect.thresholds.memcap. - New counters: bitmap_memuse and bitmap_alloc_fail. Tests: - C unit tests for parsing, distinct counting, window reset, and allocation failure fallback. - suricata-verify tests for distinct src/dst port counting. Task #7928	8 months ago
Juliana Fajardini	2c216e2b73	devguide/exceptions: minor fixes - cleaner YouTube link - fix weird sentence Follow-up of Task #5612	8 months ago
Philippe Antoine	54cc752cf9	ssh: hassh can be truly disabled Rules will not re-enable it Ticket: 8223	8 months ago
Philippe Antoine	c960b7d7c1	app-layer: AppLayerParserFPtr uses a mut pointer to local storage So, fix the fn prototype in rust ParseFn	8 months ago
Juliana Fajardini	48b15ac152	devguide: add chapter about exception policies Adds a chapter indicating what are the main steps when adding exception policies, how is it possible to extend them, as well as main aspects and files to consider when doing so. Task #5612	8 months ago
Lukas Sismis	56c1552c3e	hs: warn about the same cache directory This is especially relevant for multi-instance simultaneous setups as we might risk read/write races.	8 months ago
Lukas Sismis	15c83be61a	hs: prune stale MPM cache files Hyperscan MPM can cache the compiled contexts to files. This however grows as rulesets change and leads to bloating the system. This addition prunes the stale cache files based on their modified file timestamp. Part of this work incorporates new model for MPM cache stats to split it out from the cache save function and aggregate cache-related stats in one place (newly added pruning). Ticket: 7830	8 months ago
Victor Julien	73a873ecfe	doc/userguide: endswith can be mixed with offset/distance/within Bug: #5030.	8 months ago
Philippe Antoine	dd6baccabd	src: doc: remove more double-space typos Found with git grep -E '[a-z] [a-z]'	8 months ago
Juliana Fajardini	a1f088cc65	docs: use correct suricata version mentions Found with 'git grep suricata-7' Task #8113	8 months ago
Philippe Antoine	7422c97bf2	quic: encryption-handling config parameters Ticket: 8116	8 months ago
Shivani Bhardwaj	6702791a9c	doc: add dcerpc.max-stub-size config param	8 months ago
Jason Ish	2c95f1ff44	dnp3: bound the maximum number of objects per tx Default to 2048, but provide a user configuration value. Ticket: #8181	8 months ago
Jason Ish	3a32bb5743	dnp3: set a bound on the number of points per message 16384 is used as the max, but a configuration parameter has been provided. The reason for setting an upper bound is that bit flags can create a memory amplification as we parse them into individual data structures. Ticket: #8181	8 months ago
Jason Ish	a16f087b93	dnp3: reduce flood threshold to 32 and make configurable Lower the number of unreplied requests from 500 to 32 to consider a flood. At the very least this is an anomaly given the DNP3 spec mentions that DNP3 should only have one outstanding request at a time, with an exception for unsolicited responses, so in practice no more than 2 should be seen. Additionally make this value configurable by introducing the max-tx parameter. Ticket: #8181	8 months ago
Lukas Sismis	b596073a79	src: doc: remove double-space typos	8 months ago
Shivani Bhardwaj	30bdaa44e1	doc: add elephant.flow usage section	9 months ago
Shivani Bhardwaj	06eafb79d6	detect/flow-pkts: check for both dir The functionality of "both" can already be easily achieved by using both "toclient" and "toserver" in a rule. This just adds the ease of expression in rule. As it is added now, check the direction for the pre-existing users of direction as well.	9 months ago
Juliana Fajardini	0ca874b678	userguide: highlight exceptions interactions In corner cases, we assume that a midstream exception policy could be triggered by a prior exception policy in effect. Explain this in the docs. Task #5830	9 months ago
Ambre Iooss	91c9e34419	doc/userguide: update windivert instructions The IPS documentation for Windows had a dead link to a PDF. Update the Windows build page to include WinDivert instructions. Documentation: #8137.	9 months ago
Victor Julien	365ed2a2ff	af-packet: disable hwtimestamp by default Add enable-hwtimestamp option to replace disable-hwtimestamp. Ticket: #7585.	9 months ago
Jeff Lucovsky	845544aad3	doc/luaxform: Clarify luaxform calling convention Issue: 8135 Clarify the calling convention for the Lua transform's `transform` function.	9 months ago
Juliana Fajardini	6c06ab6144	devguide: update backports policy for Suricata 7.0 Also remove mentions to `master` and `6.0x`. Task #7937	9 months ago
Juliana Fajardini	907f4faff8	doc/thresholding: minor fix for backoff subsection	9 months ago
Philippe Antoine	c93e69830a	detect/ssl: properly handle negation in ssl_version keyword Ticket: 3220 DetectSslVersionMatch did not handle properly negation. It could never match on a signatrue with ssl_version: !tls1.3 That is because, if we had such a signature and network traffic with tls1.1, we were looking into DetectSslVersionData field for tls1.1, which was not set, instead of looking at field for tls1.3 which was set with negated flag. Previous DetectSslVersionData was holding redundant information. It did not need to have it for each ssl version, but just globally. Also, it did not need to hold the version as a value in the array, as it was redundant with the index of the array.	9 months ago
Philippe Antoine	1329786f84	detect: new command line option : list-rule-protos To list the protocols we can use a in a rule header Ticket: 635	9 months ago
Victor Julien	08d625bb10	mpm: remove remaining ac-bs references	9 months ago
Victor Julien	be2c40bde7	doc/af-packet: document disable-hwtimestamp option Ticket: #1954.	9 months ago
Victor Julien	5194c877f2	threads: remove thread group name logic Once used to merge stats. Stats are tracked per thread and merge by counter name in the current code. It was set only for autofp modes.	9 months ago
Juliana Fajardini	1647081b29	doc: remove remaining references to pruned flows These were removed with `a5587fec2e` but these mentions went under the radar.	10 months ago
Philippe Antoine	af8390f2ca	doc: upgrade note for engine-analysis breaking change For keywords that now use the generic integer framework Ticket: 7889	10 months ago
Philippe Antoine	d94aea8331	detect: tcp.window is now a generic integer Ticket: 7889	10 months ago
Philippe Antoine	68bb783e97	detect: tcp.seq is now a generic integer Ticket: 7889	10 months ago
Philippe Antoine	ed907bbd78	detect: tcp.ack is now a generic integer Ticket: 7889	10 months ago
Philippe Antoine	7a8eb28cae	detect: id is now a generic integer Ticket: 7889	10 months ago
Philippe Antoine	bff7413488	detect: icmp_seq is now a generic integer Ticket: 7889	10 months ago
Philippe Antoine	79e66f76e6	detect: icmp_id is now a generic integer Ticket: 7889	10 months ago
Philippe Antoine	09531447d1	detect: fragoffset is now a generic integer Ticket: 7889	10 months ago
Philippe Antoine	85fa894425	detect: dnp3.func is now a generic integer Ticket: 7889	10 months ago
Jeff Lucovsky	b02d9bb4f1	doc/luaxform: Remove init function from example Issue: 8035 The `luaxform` transform doesn't support the `init` function. This commit removes that from the example and clarifies how functions in the Lua script are used.	10 months ago
Victor Julien	558ab73a7f	doc/devguide: explain alert logging changes	10 months ago
Philippe Antoine	c61f1cb6d0	detect/integers: rename index all1 to all And all to all_or_absent Ticket: 7929	10 months ago
Victor Julien	ec65fd430e	exception-policy: rename 'reject-both' to 'rejectboth' To align it with the rule action.	10 months ago
Jason Ish	cdd4ea0f11	doc/devguide: document eve callback Document the callback for adding additional data to EVE. Ticket: #4708	10 months ago
Jason Ish	9fffc09ad7	doc/devguide: document eve file types Ticket: #4708	10 months ago
Victor Julien	0c4a8fd183	doc/userguide: document reject-both expection policy Ticket: #5974.	11 months ago
David Wharton	9d2d1c4f8f	doc: minor verbiage tweaks and reST fix	11 months ago
Philippe Antoine	d8cb00e795	detect/tcp: make tcp.flags a generic integer with bitflags Ticket: 6724 Allows to use numerical values for example Also fixes some unit tests that were returning 1 after goto error FlagsTestParse05 especially took this path as de->ignored_flags != (TH_SYN\|TH_RST) was false we had de->ignored_flags == 0xff ^ (TH_SYN\|TH_RST) And then, we had a match, instead of what the not-run code was supposing.	11 months ago
Philippe Antoine	1f9236a6d8	detect/ipv4: make fragbits a generic uint16 bitflags keyword Ticket: 6724 Allows to use numerical values	11 months ago
Philippe Antoine	633180c93f	detect/integers: generalize support for bitflags modifier Ticket: 6724 Allows sugar syntax for bitflags keywords. While the expressivity does not increase, because we could already use numerial values with all generic integer modes, this modifier prefix is used with the strings, and follows the syntax that is already used for fragbits and tcp.flags keyword.	11 months ago
Philippe Antoine	4b69a31dc3	detect/integers: count argument for multi-integers Ticket: 7211 Allows to count the number of elements, without matching on individual elements	11 months ago
Philippe Antoine	969739d067	detect: http2.errorcode is now a generic integer Ticket: 7889	11 months ago
Philippe Antoine	401b2fcae6	detect: http2.frametype is now a generic integer Ticket: 7889	11 months ago
Jeff Lucovsky	16d124cfda	doc/output: Highlight ethertype value change Issue: 7855 Highlight the change to how ether_type values are displayed. Previously, they were displayed in network order as a decimal value. They are now displayed in host order as a decimal value.	11 months ago
Juliana Fajardini	ff96c52541	doc/install: fix minor typo	11 months ago
Juliana Fajardini	a3bd4ec324	doc: remove outdated GITGUIDE	11 months ago
Jason Ish	ced0c2c466	doc: upgrade notes for changes to ike output	11 months ago
Victor Julien	48972d544c	doc/userguide: link to protocol details from transactional rules	12 months ago
Victor Julien	480e664b4c	doc/userguide: add xbits tx scope support Ticket #7680.	12 months ago
Victor Julien	a1c4167d94	doc/userguide: add initial protocols overview Explain per protocol mechanics for rule matching.	12 months ago
Victor Julien	7034a17d1d	doc/devguide: remove WIP mention of files in txs Work has been completed, so comment is no longer accurate.	12 months ago
Victor Julien	e2a5bc058c	doc/userguide: fix DCERPC headings	12 months ago
Victor Julien	be5c83ed53	doc/userguide: add rule hooks to protocol doc Ticket #7662.	12 months ago
Victor Julien	91f258e2bc	doc/userguide: add missing app-layer protocols	12 months ago
Victor Julien	2623e67a80	doc/userguide: add missing rule protocols	12 months ago
Philippe Antoine	3641b4eda1	detect/nfs: move nfs_procedure to rust Make it able to use strings on the way Ticket: 6723	12 months ago
Philippe Antoine	9869fb776b	detect/snmp: pdu_type keyword now accepts strings Ticket: 6723	12 months ago
Philippe Antoine	0553dfa814	detect/krb5: move krb5_msg_type to rust Makes it a generic u32 on the way Unit tests are covered by SV tests Ticket: 6723	12 months ago
Philippe Antoine	da486af881	detect: list-keywords cli shows integers Ticket: 7875	12 months ago
Philippe Antoine	b298bce0e7	detect: list-keywords cli shows multi-buffers Ticket: 7571	12 months ago
Andreas Dolp	375b5dd306	doc: fix typo /var/run/suricata in file permissions docs.	12 months ago
Andreas Dolp	cc590b54c7	doc: fix typo and missing newline in rules/ssh_keywords.	12 months ago
Andreas Dolp	228abb7da0	doc: fix doc syntax error in rate_filter example.	12 months ago
Juliana Fajardini	21b27597d6	doc/rules/internals: minor fixes Fix typo and add a reference about the classtype keyword effect. Related to Task #5449	12 months ago
Fupeng Zhao	e79d735374	decode/etag: ETag 802.1BR decoder Ticket: #3953.	12 months ago
Philippe Antoine	cb9ab951b9	detect/integers: subslice for multi-integers	12 months ago
Philippe Antoine	82f0e725a2	detect/integers: index or_absent and or_oob To match if array is empty, or index is out of bounds	12 months ago
Philippe Antoine	1480cf47ab	detect/integers: nb index to match a specific number of times For example dns.rrtype: !A,nb>3 will match if we have more than 3 dns records which are not A	12 months ago
Philippe Antoine	6f848eeaaf	detect/integers: all1 index to match only on non-empty arrays	12 months ago
Philippe Antoine	5add185f22	http2/detect: http2.window can now use index Ticket: 7480	12 months ago
Philippe Antoine	83868778b9	http2/detect: http2.priority can now use index Ticket: 7480	12 months ago
Philippe Antoine	9fc407fd75	mqtt/detect: mqtt.type can now use index Ticket: 7480	12 months ago
Philippe Antoine	dad424d74a	doc: multi-integers section for rules Ticket: 7480 Describing the usage of index	12 months ago
Fupeng Zhao	4f68cb026f	decoder/vxlan: add configurable reserved bits validation for VXLAN Add support for two VXLAN reserved bits check modes: - strict: validate all reserved bits for standard VXLAN format - permissive: skip all reserved bits validation (allows extensions) Configuration added to suricata.yaml.in with 'strict' as default. Includes comprehensive unit tests and documentation updates. Ticket: 7753	12 months ago
Alice Akaki	8e0b0ef35f	detect: add email.body_md5 keyword email.body_md5 matches on md5 hash generated from email body This keyword maps to the EVE field email.body_md5 It is a sticky buffer Supports prefiltering Ticket: #7587	12 months ago
Victor Julien	46203de0e9	doc: adjust for master to main rename	1 year ago
Victor Julien	e62eb00459	doc/userguide: add ips chapter; add concept Move setup guides into the new chapter as well. Explain `stream.inline` logic. Ticket: #5513. Ticket: #6284.	1 year ago
Philippe Antoine	9146fc8957	doc: upgrade note about keyword tls.cert_subject Following commit `5379b52af2` rules that use multiple times the keyword tls.cert_subject will result in Warning: detect: duplicate instance for tls.cert_subject These rules likely meant to use a multi-buffer which is not the case for tls.cert_subject (even if it was documented so). Ticket: 7890 This is put in a new section of upgrade notes for upgrading to 8.0.1	1 year ago
Juliana Fajardini	27e165f760	doc/rules/index: keep rule types doc near the end As this chapter is more meta than about rule keywords, keep it by the end of the index, to have some semantic separation from the other sections.	1 year ago
Juliana Fajardini	d5810a42e1	userguide: document how suricata processes rules Added a page that explains how rules are prioritized by Suri, as well as what main different types of inspection happen and what elements are involved when ordering rules. Task #5449	1 year ago
Shivani Bhardwaj	b21f737aee	doc: add doc on internals of inspection of raw data Explain briefly the internals of inspection of raw data in the following order: - Stream Engine - Stream reassembly - Role of Detection Engine and Applayer Parsers - High level communication between Stream and Detection Engine - Relevant suricata.yaml settings alongwith some diagrams. Ticket 4351	1 year ago
Shivani Bhardwaj	9ed5ac7669	doc: make firewall table names consistent	1 year ago
Shivani Bhardwaj	7fec1883cd	doc: add more info to firewall design Add information about: - available tables, default policies and rule ordering - Packet layer and applayer tables and hooks - engine analysis output - commandline options available - how to load firewall rules Also, reorganize sections and content to assist the definitions.	1 year ago
Jeff Lucovsky	17e7387ff4	doc/fileinfo: Document fileinfo context/usage Issue: 6498	1 year ago
Thomas Winter	0b2dfa2b68	doc: Add upgrade note for ppp changes	1 year ago
Philippe Antoine	0026019dcf	doc: complete list of multi-buffers Ticket: 7867	1 year ago
Philippe Antoine	646c78269a	doc/devguide: section with conceptualized steps for adding app-layer Ticket: 6840	1 year ago
Tommy Wang	fc6b96fb85	doc/lualib: fix wrong tuple section markdown in flowlib Sections had wrong levels due to wrong markdown.	1 year ago
Tommy Wang	a10053e62c	doc/lualib: fix flow timestamps return value order Task #7854	1 year ago
Philippe Antoine	d0a513df6a	detect/integers: support kibibyte unit Ticket: 7869	1 year ago

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1416 Commits (5f9e436c3f96e0ddef612c9dc96bccdc90165abf)