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
This patch modifies the init of Detect threads. They are now started
with a dummy function and their initialisation is done after the
signatures are loaded. Just after this, the dummy function is switched
to normal one.
In IPS mode, this permit to route packets without waiting for the
signature to start and should fix#488.
Offline mode such as pcap file don't use this mode to be sure to
analyse all packets in the file.
The patch introduces a "delayed-detect" configuration variable
under detect-engine. It can be used to activate the feature
(set to "yes" to have signature loaded after capture is started).
This patch adds the 'auto', 'autofp' and 'worker' runmode for
IPS. It provides a set of ready-to-use functions that can be
used by NFQ and IPFW to implement this running mode.
This patch modifies the RunModeSetLiveCaptureAuto() prototype to
be able to detect that a 'threads' variable (telling how much
threads must listen to one socket in IDS mode) has been used
in the configuration file. It then print a warning message
if this is the case.
Previous commits have considerabily empowered the "single" mode which
could contain multiple threads. This behaviour was not a target for
this runmode and the following patch remedies to the situation by
introducing the "workers" mode where each thread do all the tasks
from acquisition to logging. This runmode is currently implemented
for af-packet and pf-ring.