rnd: add gen_key_bytes to generate key from good entropy source

Make this a function and do not have this in curvetun hard coded.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/rnd.h b/rnd.h
index dd128a1..154fccf 100644
--- a/rnd.h
+++ b/rnd.h
@@ -4,10 +4,11 @@
 #define HIG_ENTROPY_SOURCE	"/dev/random"
 #define LOW_ENTROPY_SOURCE	"/dev/urandom"
 
-/* Note: it's not really secure, but the name only suggests it's better to use
+/* secrand is not really secure, but the name only suggests it's better to use
  * than rand(3) when transferring bytes over the network in non-security
  * critical structure members. secrand() is only used to fill up salts actually.
  */
 extern int secrand(void);
+extern void gen_key_bytes(unsigned char *area, size_t len);
 
 #endif /* RND_H */