Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / include / ipxe / sha256.h

diff --git a/qemu/roms/ipxe/src/include/ipxe/sha256.h b/qemu/roms/ipxe/src/include/ipxe/sha256.h
new file mode 100644 (file)
index 0000000..9aa9f3e
--- /dev/null
+++ b/qemu/roms/ipxe/src/include/ipxe/sha256.h
@@ -0,0 +1,73 @@
+#ifndef _IPXE_SHA256_H
+#define _IPXE_SHA256_H
+
+/** @file
+ *
+ * SHA-256 algorithm
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+#include <ipxe/crypto.h>
+
+/** An SHA-256 digest */
+struct sha256_digest {
+       /** Hash output */
+       uint32_t h[8];
+};
+
+/** An SHA-256 data block */
+union sha256_block {
+       /** Raw bytes */
+       uint8_t byte[64];
+       /** Raw dwords */
+       uint32_t dword[16];
+       /** Final block structure */
+       struct {
+               /** Padding */
+               uint8_t pad[56];
+               /** Length in bits */
+               uint64_t len;
+       } final;
+};
+
+/** SHA-256 digest and data block
+ *
+ * The order of fields within this structure is designed to minimise
+ * code size.
+ */
+struct sha256_digest_data {
+       /** Digest of data already processed */
+       struct sha256_digest digest;
+       /** Accumulated data */
+       union sha256_block data;
+} __attribute__ (( packed ));
+
+/** SHA-256 digest and data block */
+union sha256_digest_data_dwords {
+       /** Digest and data block */
+       struct sha256_digest_data dd;
+       /** Raw dwords */
+       uint32_t dword[ sizeof ( struct sha256_digest_data ) /
+                       sizeof ( uint32_t ) ];
+};
+
+/** An SHA-256 context */
+struct sha256_context {
+       /** Amount of accumulated data */
+       size_t len;
+       /** Digest and accumulated data */
+       union sha256_digest_data_dwords ddd;
+} __attribute__ (( packed ));
+
+/** SHA-256 context size */
+#define SHA256_CTX_SIZE sizeof ( struct sha256_context )
+
+/** SHA-256 digest size */
+#define SHA256_DIGEST_SIZE sizeof ( struct sha256_digest )
+
+extern struct digest_algorithm sha256_algorithm;
+
+#endif /* _IPXE_SHA256_H */