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suricata
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suricata-3.1.2
suricata-3.1.1
suricata-3.1
suricata-3.0.2
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suricata-1.4.7
suricata-1.4.6
suricata-1.4.5
suricata-2.0beta1
suricata-1.4.4
suricata-1.4.3
suricata-1.4.2
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suricata-1.2.1
suricata-1.2
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suricata-1.1.1
suricata-0.8.2
suricata-1.0.0
suricata-1.0.1
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suricata-1.0.3
suricata-1.0.4
suricata-1.0.5
suricata-1.1
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suricata-1.1beta3
suricata-1.1rc1
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Commit Graph

8 Commits (d40dca5e55286c57e9a83018975022c4f08bf6d1)

Author SHA1 Message Date
Victor Julien 2c0e434bb8 detect: pass de_ctx to DetectBufferSetActiveList 3 years ago
Victor Julien c15d511064 frames: enable only used frames 
Enable only frames that are actually used.

Ticket: #4979.
 3 years ago
Victor Julien 39d9b3adbe frames: implement generic <alproto>.stream frames 
Add a hard coded <alproto>.stream option for all stream data for
a protocol.

Starts at stream offset 0 or at the point of a protocol upgrade
in case of STARTTLS or CONNECT.
 3 years ago
Victor Julien b31ffde6f4 output: remove error codes from output 3 years ago
Victor Julien e250ef6402 debug: remove empty header 3 years ago
Victor Julien f5408ec2d7 detect/frame: fix frame detect registration 
Rewrite keyword parser.

Duplicate short names could lead to buffer confusion and memory leaks.

Bug: #5238.
 4 years ago
Victor Julien c96d22e8a1 frames: support UDP frames 
UDP frames point to the UDP packet payloads.

The frames are removed after each packet.

Ticket: #4983.
 4 years ago
Victor Julien a492d94826 detect/frames: implement 'frame' keyword 
Implement a special sticky buffer to select frames for inspection.

This keyword takes an argument to specify the per protocol frame type:

    alert <app proto name> ... frame:<specific frame name>

Or it can specify both in the keyword:

    alert tcp ... frame:<app proto name>.<specific frame name>

The latter is useful in some cases like http, where "http" applies to
both HTTP and HTTP/2.

    alert http ... frame:http1.request;
    alert http1 ... frame:request;

Examples:

    tls.pdu
    smb.smb2.hdr
    smb.smb3.data

Consider a rule like:

    alert tcp ... flow:to_server; content:"|ff|SMB"; content:"some smb 1 issue";

this will scan all toserver TCP traffic, where it will only be limited by a port,
depending on how rules are grouped.

With this work we'll be able to do:

    alert smb ... flow:to_server; frame:smb1.data; content:"some smb 1 issue";

This rule will only inspect the data portion of SMB1 frames. It will not affect
any other protocol, and it won't need special patterns to "search" for the
SMB1 frame in the raw stream.
 4 years ago