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authorAlberto Gonzalez Iniesta <agi@inittab.org>2017-06-22 13:16:46 +0200
committerAlberto Gonzalez Iniesta <agi@inittab.org>2017-06-22 13:16:46 +0200
commit766cdd4b4d1fcb31addf6727dbcfd3d99e390456 (patch)
tree76932876ae57f139fa1b3f82b375e4e526b507d7 /src/openvpn/crypto_backend.h
parentd73f7253d939e293abf9e27b4b7f37df1ec12a39 (diff)
parent9683f890944ffb114f5f8214f694e0b339cf5a5a (diff)
Merge tag 'upstream/2.4.3'
Upstream version 2.4.3
Diffstat (limited to 'src/openvpn/crypto_backend.h')
-rw-r--r--src/openvpn/crypto_backend.h55
1 files changed, 51 insertions, 4 deletions
diff --git a/src/openvpn/crypto_backend.h b/src/openvpn/crypto_backend.h
index 2c79baa..b7f519b 100644
--- a/src/openvpn/crypto_backend.h
+++ b/src/openvpn/crypto_backend.h
@@ -17,10 +17,9 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program (see the file COPYING included with this
- * distribution); if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/**
@@ -47,6 +46,12 @@
/* Maximum HMAC digest size (bytes) */
#define OPENVPN_MAX_HMAC_SIZE 64
+/** Types referencing specific message digest hashing algorithms */
+typedef enum {
+ MD_SHA1,
+ MD_SHA256
+} hash_algo_type ;
+
/** Struct used in cipher name translation table */
typedef struct {
const char *openvpn_name; /**< Cipher name used by OpenVPN */
@@ -295,6 +300,20 @@ bool cipher_kt_mode_aead(const cipher_kt_t *cipher);
*/
/**
+ * Allocate a new cipher context
+ *
+ * @return a new cipher context
+ */
+cipher_ctx_t *cipher_ctx_new(void);
+
+/**
+ * Free a cipher context
+ *
+ * @param ctx Cipher context.
+ */
+void cipher_ctx_free(cipher_ctx_t *ctx);
+
+/**
* Initialise a cipher context, based on the given key and key type.
*
* @param ctx Cipher context. May not be NULL
@@ -502,6 +521,20 @@ int md_kt_size(const md_kt_t *kt);
int md_full(const md_kt_t *kt, const uint8_t *src, int src_len, uint8_t *dst);
/*
+ * Allocate a new message digest context
+ *
+ * @return a new zeroed MD context
+ */
+md_ctx_t *md_ctx_new(void);
+
+/*
+ * Free an existing, non-null message digest context
+ *
+ * @param ctx Message digest context
+ */
+void md_ctx_free(md_ctx_t *ctx);
+
+/*
* Initialises the given message digest context.
*
* @param ctx Message digest context
@@ -550,6 +583,20 @@ void md_ctx_final(md_ctx_t *ctx, uint8_t *dst);
*/
/*
+ * Create a new HMAC context
+ *
+ * @return A new HMAC context
+ */
+hmac_ctx_t *hmac_ctx_new(void);
+
+/*
+ * Free an existing HMAC context
+ *
+ * @param ctx HMAC context to free
+ */
+void hmac_ctx_free(hmac_ctx_t *ctx);
+
+/*
* Initialises the given HMAC context, using the given digest
* and key.
*