SSL test programs: abstract CTR_DRBG away
In ssl_client2 and ssl_server2, to generate random data, go through a
level of indirection provided by ssl_test_lib. This way the programs
don't depend on a particular choice of RNG implementation, and only
ssl_test_lib.{h,c} explicitly reference CTR_DRBG.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/programs/ssl/ssl_test_lib.c b/programs/ssl/ssl_test_lib.c
index e3c95cc..84553df 100644
--- a/programs/ssl/ssl_test_lib.c
+++ b/programs/ssl/ssl_test_lib.c
@@ -95,6 +95,12 @@
mbedtls_entropy_free( &rng->entropy );
}
+int rng_get( void *p_rng, unsigned char *output, size_t output_len )
+{
+ rng_context_t *rng = p_rng;
+ return( mbedtls_ctr_drbg_random( &rng->drbg, output, output_len ) );
+}
+
#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
int ca_callback( void *data, mbedtls_x509_crt const *child,
mbedtls_x509_crt **candidates )