diff options
Diffstat (limited to 'src/openvpn/ssl_backend.h')
| -rw-r--r-- | src/openvpn/ssl_backend.h | 47 |
1 files changed, 39 insertions, 8 deletions
diff --git a/src/openvpn/ssl_backend.h b/src/openvpn/ssl_backend.h index aba5a4d..c614efa 100644 --- a/src/openvpn/ssl_backend.h +++ b/src/openvpn/ssl_backend.h @@ -5,8 +5,8 @@ * packet encryption, packet authentication, and * packet compression. * - * Copyright (C) 2002-2017 OpenVPN Technologies, Inc. <sales@openvpn.net> - * Copyright (C) 2010-2017 Fox Crypto B.V. <openvpn@fox-it.com> + * Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net> + * Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 @@ -114,6 +114,7 @@ void tls_clear_error(void); #define TLS_VER_1_0 1 #define TLS_VER_1_1 2 #define TLS_VER_1_2 3 +#define TLS_VER_1_3 4 int tls_version_parse(const char *vstr, const char *extra); /** @@ -164,11 +165,14 @@ bool tls_ctx_initialised(struct tls_root_ctx *ctx); * * @param ctx TLS context to set options on * @param ssl_flags SSL flags to set + * + * @return true on success, false otherwise. */ -void tls_ctx_set_options(struct tls_root_ctx *ctx, unsigned int ssl_flags); +bool tls_ctx_set_options(struct tls_root_ctx *ctx, unsigned int ssl_flags); /** - * Restrict the list of ciphers that can be used within the TLS context. + * Restrict the list of ciphers that can be used within the TLS context for TLS 1.2 + * and below * * @param ctx TLS context to restrict, must be valid. * @param ciphers String containing : delimited cipher names, or NULL to use @@ -177,6 +181,26 @@ void tls_ctx_set_options(struct tls_root_ctx *ctx, unsigned int ssl_flags); void tls_ctx_restrict_ciphers(struct tls_root_ctx *ctx, const char *ciphers); /** + * Restrict the list of ciphers that can be used within the TLS context for TLS 1.3 + * and higher + * + * @param ctx TLS context to restrict, must be valid. + * @param ciphers String containing : delimited cipher names, or NULL to use + * sane defaults. + */ +void tls_ctx_restrict_ciphers_tls13(struct tls_root_ctx *ctx, const char *ciphers); + +/** + * Set the TLS certificate profile. The profile defines which crypto + * algorithms may be used in the supplied certificate. + * + * @param ctx TLS context to restrict, must be valid. + * @param profile The profile name ('preferred', 'legacy' or 'suiteb'). + * Defaults to 'preferred' if NULL. + */ +void tls_ctx_set_cert_profile(struct tls_root_ctx *ctx, const char *profile); + +/** * Check our certificate notBefore and notAfter fields, and warn if the cert is * either not yet valid or has expired. Note that this is a non-fatal error, * since we compare against the system time, which might be incorrect. @@ -502,12 +526,19 @@ int key_state_read_plaintext(struct key_state_ssl *ks_ssl, struct buffer *buf, void print_details(struct key_state_ssl *ks_ssl, const char *prefix); /* - * Show the TLS ciphers that are available for us to use in the OpenSSL - * library. + * Show the TLS ciphers that are available for us to use in the + * library depending on the TLS version. This function prints + * a list of ciphers without headers/footers. * - * @param - list of allowed TLS cipher, or NULL. + * @param cipher_list list of allowed TLS cipher, or NULL. + * @param tls_cert_profile TLS certificate crypto profile name. + * @param tls13 Select if <=TLS1.2 or TLS1.3+ ciphers + * should be shown */ -void show_available_tls_ciphers(const char *tls_ciphers); +void +show_available_tls_ciphers_list(const char *cipher_list, + const char *tls_cert_profile, + bool tls13); /* * Show the available elliptic curves in the crypto library |