Fixes configure enabling of prelude. CFLAGS is reset, so the previous
adding of -DPRELUDE was nixed. Using AC_DEFINE now.
Cleanups:
- make functions static
- simplify handling of no prelude support
- move registration to the bottom
GCC typically generates better code without the -no-strict-aliasing flag.
It is only required if code makes assumptiosn that break strict aliasing.
The unit tests pass on x86 and Tile without the flag.
Check all compilers to see if they support the -march=native flags, rather
than assuming gcc 4.2 or later does. Tile GCC doesn't currently support it,
so not checking break Tile compiles.
When generating src/build-info.h the use of ac_builddir was problematic.
There were several cases where it was undefined leading to the absolute
path /src/build-info.h. ./configure should be called from the parent dir
to the actual src dir, so this should work. Make distcheck and normal builds
complete fine.
In preparation of the libhtp upgrade, move all libhtp related conditionals
to configure. This allows for one set of build scripts that works regardless
of the presence of a local libhtp dir.
Normally, there is one verdict per packet, i.e., we receive a packet,
process it, and then tell the kernel what to do with that packet (eg.
DROP or ACCEPT).
recv(), packet id x
send verdict v, packet id x
recv(), packet id x+1
send verdict v, packet id x+1
[..]
recv(), packet id x+n
send verdict v, packet id x+n
An alternative is to process several packets from the queue, and then send
a batch-verdict.
recv(), packet id x
recv(), packet id x+1
[..]
recv(), packet id x+n
send batch verdict v, packet id x+n
A batch verdict affects all previous packets (packet_id <= x+n),
we thus only need to remember the last packet_id seen.
Caveats:
- can't modify payload
- verdict is applied to all packets
- nfmark (if set) will be set for all packets
- increases latency (packets remain queued by the kernel
until batch verdict is sent).
To solve this, we only defer verdict for up to 20 packets and
send pending batch-verdict immediately if:
- no packets are currently queue
- current packet should be dropped
- current packet has different nfmark
- payload of packet was modified
This patch adds a configurable batch verdict support for workers runmode.
The batch verdicts are turned off by default.
Problem is that batch verdicts only work with kernels >= 3.1, i.e.
using newer libnetfilter_queue with an old kernel means non-working
suricata. So the functionnality has to be disabled by default.
'make install' install now suricatasc script and Python module to
the system. The suricatasc client module can now be used in other
Python projects by using 'import suricatasc'.
A transformation was needed for distribution of a module and a script.
Module in src directory is now containing most of the code and the
script only handle argument parsing and the creation of a unix socket
client through 'suricatasc' module.
As reported in bug #688, htp_config_set_path_decode_u_encoding
function is not included in libhtp header before 0.3.0. Result
is that suricata compilation fail with an external htp library.
The following patch detect the issue and adds the missing
declaration.