components/sysutils/snort/patches/02-snort.c.patch

   1 Provide the directory where snort will initially look for DAQ modules.
   2
   3 This patch has not been sent upstream, because the Solaris integration
   4 of libdaq is different from the way that Linux systems do this.
   5
   6 On Linux systems, DAQ installs two static libraries:
   7
   8   /usr/lib/libdaq_static.a
   9   /usr/lib/libdaq_static_modules.a
  10
  11 When snort is being configured, you see:
  12
  13 ...
  14 checking for daq_load_modules in -ldaq_static... yes
  15 ...
  16
  17 and at link time we see "-ldaq_static ... -ldaq_static_modules ...".
  18
  19 This means that when you start snort running, it knows where to
  20 look for a set of DAQ modules that it loads. This is done with
  21 with a call to the DAQ routine daq_load_modules().
  22
  23 On Solaris, we do not provide those two static libraries (or their 64-bit
  24 equivalents). Therefore, by default, a call to daq_load_modules() using
  25 the dynamic libraries doesn't know where to look for any DAQ modules.
  26
  27 Now you can override this by starting snort with:
  28
  29   $ sudo /usr/bin/snort --daq-dir /usr/lib/64/daq
  30
  31   or
  32
  33   $ sudo /usr/bin/snort -c /etc/snort.conf
  34
  35 or something similar, but that doesn't allow:
  36
  37   $ sudo /usr/bin/snort
  38
  39 to work, right out of the box, which is what snort users would expect.
  40
  41 To resolve this, at snort initialization time on Solaris, the code has
  42 been adjusted to specify a single default DAQ module directory:
  43
  44   /usr/lib/daq
  45
  46 --- snort-2.9.9.0/src/snort.c.~1~       2016-11-14 14:48:57.000000000 +0300
  47 +++ snort-2.9.9.0/src/snort.c   2017-01-31 17:13:46.276333406 +0300
  48 @@ -4190,6 +4190,9 @@
  49  {
  50      SnortConfig *sc = (SnortConfig *)SnortAlloc(sizeof(SnortConfig));
  51
  52 +    /* Define where to look for DAQ modules. */
  53 +    ConfigDaqDir(sc, "/usr/lib/daq");
  54 +
  55      sc->pkt_cnt = 0;
  56  #ifdef REG_TEST
  57      sc->pkt_skip = 0;