diff options
Diffstat (limited to 'openvpn/src/openvpn/ssl_polarssl.c')
| -rw-r--r-- | openvpn/src/openvpn/ssl_polarssl.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/openvpn/src/openvpn/ssl_polarssl.c b/openvpn/src/openvpn/ssl_polarssl.c index 8a917b34..fb732254 100644 --- a/openvpn/src/openvpn/ssl_polarssl.c +++ b/openvpn/src/openvpn/ssl_polarssl.c @@ -501,6 +501,18 @@ void tls_ctx_personalise_random(struct tls_root_ctx *ctx) } } +int +tls_version_max(void) +{ +#if defined(SSL_MAJOR_VERSION_3) && defined(SSL_MINOR_VERSION_3) + return TLS_VER_1_2; +#elif defined(SSL_MAJOR_VERSION_3) && defined(SSL_MINOR_VERSION_2) + return TLS_VER_1_1; +#else + return TLS_VER_1_0; +#endif +} + void key_state_ssl_init(struct key_state_ssl *ks_ssl, const struct tls_root_ctx *ssl_ctx, bool is_server, struct tls_session *session) { @@ -550,6 +562,34 @@ void key_state_ssl_init(struct key_state_ssl *ks_ssl, /* TODO: PolarSSL does not currently support sending the CA chain to the client */ ssl_set_ca_chain (ks_ssl->ctx, ssl_ctx->ca_chain, NULL, NULL ); + /* Initialize minimum TLS version */ + { + const int tls_version_min = (session->opt->ssl_flags >> SSLF_TLS_VERSION_SHIFT) & SSLF_TLS_VERSION_MASK; + int polar_major; + int polar_minor; + switch (tls_version_min) + { + case TLS_VER_1_0: + default: + polar_major = SSL_MAJOR_VERSION_3; + polar_minor = SSL_MINOR_VERSION_1; + break; +#if defined(SSL_MAJOR_VERSION_3) && defined(SSL_MINOR_VERSION_2) + case TLS_VER_1_1: + polar_major = SSL_MAJOR_VERSION_3; + polar_minor = SSL_MINOR_VERSION_2; + break; +#endif +#if defined(SSL_MAJOR_VERSION_3) && defined(SSL_MINOR_VERSION_3) + case TLS_VER_1_2: + polar_major = SSL_MAJOR_VERSION_3; + polar_minor = SSL_MINOR_VERSION_3; + break; +#endif + } + ssl_set_min_version(ks_ssl->ctx, polar_major, polar_minor); + } + /* Initialise BIOs */ ALLOC_OBJ_CLEAR (ks_ssl->ct_in, endless_buffer); ALLOC_OBJ_CLEAR (ks_ssl->ct_out, endless_buffer); |