Add some new cipher ctrl constants

These are needed for GOST
Reviewed-by: NRichard Levitte <levitte@openssl.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>

include/openssl/evp.h

@@ -378,6 +378,27 @@ struct evp_cipher_st {
 
 # define         EVP_CTRL_SSL3_MASTER_SECRET             0x1d
 
+/* EVP_CTRL_SET_SBOX takes the char * specifying S-boxes */
+# define         EVP_CTRL_SET_SBOX                       0x1d
+/*
+ * EVP_CTRL_SBOX_USED takes a 'size_t' and 'char *', pointing at a
+ * pre-allocated buffer with specified size
+ */
+# define         EVP_CTRL_SBOX_USED                      0x1e
+/* EVP_CTRL_KEY_MESH takes 'size_t' number of bytes to mesh the key after,
+ * 0 switches meshing off
+ */
+# define         EVP_CTRL_KEY_MESH                       0x1f
+/* EVP_CTRL_BLOCK_PADDING_MODE takes the padding mode */
+# define         EVP_CTRL_BLOCK_PADDING_MODE             0x20
+
+/* Padding modes */
+#define EVP_PADDING_PKCS7       1
+#define EVP_PADDING_ISO7816_4   2
+#define EVP_PADDING_ANSI923     3
+#define EVP_PADDING_ISO10126    4
+#define EVP_PADDING_ZERO        5
+
 /* RFC 5246 defines additional data to be 13 bytes in length */
 # define         EVP_AEAD_TLS1_AAD_LEN           13