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authorHolger Hans Peter Freyther <holger@moiji-mobile.com>2015-07-01 08:34:16 +0200
committerHolger Hans Peter Freyther <holger@moiji-mobile.com>2015-07-01 08:34:16 +0200
commit9f95ae888589dfddfe1fd325d0fb2f8361f03fab (patch)
treee2e7e132ea1a0483c1b7bec4910aa4f99e1fd8e6 /openbsc/configure.ac
parent8ee53ed9ec5e5f045778ab8b30f10cb86ec55c4a (diff)
nat: Use RAND_bytes instead of /dev/urandom
We don't need to consume all the entropy of the kernel but can use libcrypto (OpenSSL) to generate random data. It is not clear if we need to call RAND_load_file but I think we can assume that our Unices have a /dev/urandom. This takes less CPU time, provides good enough entropy (in theory) and leaves some in the kernel entropy pool.
Diffstat (limited to 'openbsc/configure.ac')
-rw-r--r--openbsc/configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/openbsc/configure.ac b/openbsc/configure.ac
index fb6feb9b9..0af573af3 100644
--- a/openbsc/configure.ac
+++ b/openbsc/configure.ac
@@ -35,6 +35,7 @@ AC_ARG_ENABLE([nat], [AS_HELP_STRING([--enable-nat], [Build the BSC NAT. Require
[osmo_ac_build_nat="$enableval"],[osmo_ac_build_nat="no"])
if test "$osmo_ac_build_nat" = "yes" ; then
PKG_CHECK_MODULES(LIBOSMOSCCP, libosmo-sccp >= 0.0.2)
+ PKG_CHECK_MODULES(LIBCRYPTO, libcrypto)
fi
AM_CONDITIONAL(BUILD_NAT, test "x$osmo_ac_build_nat" = "xyes")
AC_SUBST(osmo_ac_build_nat)