This patch renames DECODER_SET_EVENT, DECODER_ISSET_EVENT and some
other structures to ENGINE equivalent to take into account the fact
the event list is now related to all engines and not only to decoder.
Decode signature are using the fact that no proto is set on packet
to increase the matching speed. This is not the case of stream and
other engine events. Thus a difference needs to be made.
This patch adds an alias to the 'engine-event' keyword. It is now
possible to access to the stream events via the 'stream-event'
keyword. A simple transformation is done:
stream-event:reassembly_segment_before_base_seq
is a shortcut for:
engine-event:stream.reassembly_segment_before_base_seq
This patch renames the 'decode-event' keyword to 'engine-event' and
keep it for backword compatibility of rulesets. All *DecodeEvent*
references in the code are replaced by EngineEvent version.
This patch changes the option name. af-packet long option is
now used instead of -a to mimic pfring behaviour.
This patch improves the standard parsing of the command line.
Running
suricata -c suricata.yaml --af-packet
will start a suricata running in AF_PACKET mode listening on all
interfaces defined in the suricata.yaml configuration file. The
traditionnal syntax:
suricata -c suricata.yaml --af-packet=ppp0
will start a suricata listening on ppp0 only.
This patch adds a new function which build the list of interfaces to
use by parsing the configuration file. This is using the new format
and thus only af-packet can benefit of this feature.
This patch adds multi interface support to AF_PACKET. A structure
is used at thread creation to give all needed information to the
input module. Parsing of the options is done in runmode preparation
through a dedicated function which return the configuration in a
structure usable by thread creation.
The input modules are needing a per interface configuration. This
implies some new operations to be able to parse easily te configuration.
The syntax of the configuration file is for example:
af-packet:
- interface: eth0
threads: 2
- interface: eth1
threads: 3
We need a way to express get a configuration variable for interface[eth0].
This is by using ConfNodeLookupKeyValue() to get the matching node. And
after that value can be fetch by using ConfGetChildValue*() functions.