mirror of https://github.com/OISF/suricata
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4 Commits (43b5234055f3ed69d53fe8486a1cf01aac1cc198)
| Author | SHA1 | Message | Date |
|---|---|---|---|
Victor Julien
|
91296d1eec | detect/prefilter: add de_ctx to registration | 9 years ago |
|
Victor Julien
|
e2eb9f8ede |
prefilter: add 'extra match' logic to packet engines
Many of the packet engines are very generic. Rules are generally more limited. A rule like 'alert tcp any any -> any 888 (flags:S; sid:1;)' would still be inspected against every SYN packet in most cases (it depends a bit on rule grouping though). This extra match logic adds an additional check to these packet engines. It can add a check based on alproto, source port and dest port. It uses only one of these 3. Priority order is src port > alproto > dst port. For the ports only 'single' ports are used at this time. |
10 years ago |
|
Victor Julien
|
ea26ee906f | prefilter: intro common engine for u8 matches | 10 years ago |
|
Victor Julien
|
99b9896bd7 | prefilter: common funcs for packet header prefilters | 10 years ago |