1 files changed, 154 insertions, 0 deletions
diff --git a/debian/grub-extras/disabled/gpxe/src/include/gpxe/crypto.h b/debian/grub-extras/disabled/gpxe/src/include/gpxe/crypto.h
new file mode 100644
index 0000000..3831b79
--- /dev/null
+++ b/debian/grub-extras/disabled/gpxe/src/include/gpxe/crypto.h
@@ -0,0 +1,154 @@
+#ifndef _GPXE_CRYPTO_H
+#define _GPXE_CRYPTO_H
+
+/** @file
+ *
+ * Cryptographic API
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+#include <stddef.h>
+
+/** A message digest algorithm */
+struct digest_algorithm {
+	/** Algorithm name */
+	const char *name;
+	/** Context size */
+	size_t ctxsize;
+	/** Block size */
+	size_t blocksize;
+	/** Digest size */
+	size_t digestsize;
+	/** Initialise digest
+	 *
+	 * @v ctx		Context
+	 */
+	void ( * init ) ( void *ctx );
+	/** Update digest with new data
+	 *
+	 * @v ctx		Context
+	 * @v src		Data to digest
+	 * @v len		Length of data
+	 *
+	 * @v len is not necessarily a multiple of @c blocksize.
+	 */
+	void ( * update ) ( void *ctx, const void *src, size_t len );
+	/** Finalise digest
+	 *
+	 * @v ctx		Context
+	 * @v out		Buffer for digest output
+	 */
+	void ( * final ) ( void *ctx, void *out );
+};
+
+/** A cipher algorithm */
+struct cipher_algorithm {
+	/** Algorithm name */
+	const char *name;
+	/** Context size */
+	size_t ctxsize;
+	/** Block size */
+	size_t blocksize;
+	/** Set key
+	 *
+	 * @v ctx		Context
+	 * @v key		Key
+	 * @v keylen		Key length
+	 * @ret rc		Return status code
+	 */
+	int ( * setkey ) ( void *ctx, const void *key, size_t keylen );
+	/** Set initialisation vector
+	 *
+	 * @v ctx		Context
+	 * @v iv		Initialisation vector
+	 */
+	void ( * setiv ) ( void *ctx, const void *iv );
+	/** Encrypt data
+	 *
+	 * @v ctx		Context
+	 * @v src		Data to encrypt
+	 * @v dst		Buffer for encrypted data
+	 * @v len		Length of data
+	 *
+	 * @v len is guaranteed to be a multiple of @c blocksize.
+	 */
+	void ( * encrypt ) ( void *ctx, const void *src, void *dst,
+			     size_t len );
+	/** Decrypt data
+	 *
+	 * @v ctx		Context
+	 * @v src		Data to decrypt
+	 * @v dst		Buffer for decrypted data
+	 * @v len		Length of data
+	 *
+	 * @v len is guaranteed to be a multiple of @c blocksize.
+	 */
+	void ( * decrypt ) ( void *ctx, const void *src, void *dst,
+			     size_t len );
+};
+
+/** A public key algorithm */
+struct pubkey_algorithm {
+	/** Algorithm name */
+	const char *name;
+	/** Context size */
+	size_t ctxsize;
+};
+
+static inline void digest_init ( struct digest_algorithm *digest,
+				 void *ctx ) {
+	digest->init ( ctx );
+}
+
+static inline void digest_update ( struct digest_algorithm *digest,
+				   void *ctx, const void *data, size_t len ) {
+	digest->update ( ctx, data, len );
+}
+
+static inline void digest_final ( struct digest_algorithm *digest,
+				  void *ctx, void *out ) {
+	digest->final ( ctx, out );
+}
+
+static inline int cipher_setkey ( struct cipher_algorithm *cipher,
+				  void *ctx, const void *key, size_t keylen ) {
+	return cipher->setkey ( ctx, key, keylen );
+}
+
+static inline void cipher_setiv ( struct cipher_algorithm *cipher,
+				  void *ctx, const void *iv ) {
+	cipher->setiv ( ctx, iv );
+}
+
+static inline void cipher_encrypt ( struct cipher_algorithm *cipher,
+				    void *ctx, const void *src, void *dst,
+				    size_t len ) {
+	cipher->encrypt ( ctx, src, dst, len );
+}
+#define cipher_encrypt( cipher, ctx, src, dst, len ) do {		\
+	assert ( ( len & ( (cipher)->blocksize - 1 ) ) == 0 );		\
+	cipher_encrypt ( (cipher), (ctx), (src), (dst), (len) );	\
+	} while ( 0 )
+
+static inline void cipher_decrypt ( struct cipher_algorithm *cipher,
+				    void *ctx, const void *src, void *dst,
+				    size_t len ) {
+	cipher->decrypt ( ctx, src, dst, len );
+}
+#define cipher_decrypt( cipher, ctx, src, dst, len ) do {		\
+	assert ( ( len & ( (cipher)->blocksize - 1 ) ) == 0 );		\
+	cipher_decrypt ( (cipher), (ctx), (src), (dst), (len) );	\
+	} while ( 0 )
+
+static inline int is_stream_cipher ( struct cipher_algorithm *cipher ) {
+	return ( cipher->blocksize == 1 );
+}
+
+extern struct digest_algorithm digest_null;
+extern struct cipher_algorithm cipher_null;
+extern struct pubkey_algorithm pubkey_null;
+
+#endif /* _GPXE_CRYPTO_H */