Refactor LoadFrmware() to avoid global variables, which don't work when running out of ROM

host/include/host_key.h

 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  * Host-side functions for verified boot.
  */
 
 #ifndef VBOOT_REFERENCE_HOST_KEY_H_
 #define VBOOT_REFERENCE_HOST_KEY_H_
 
@@ skipping 15 matching lines @@
 
 /* Read a private key from a file.  Caller owns the returned pointer,
  * and must free it with PrivateKeyFree(). */
 VbPrivateKey* PrivateKeyRead(const char* filename, uint64_t algorithm);
 
 
 /* Free a private key. */
 void PrivateKeyFree(VbPrivateKey* key);
 
 
-/* Initialize a public key to refer to [key_data]. */
-void PublicKeyInit(VbPublicKey* key, uint8_t* key_data, uint64_t key_size);
-
-
 /* Allocate a new public key with space for a [key_size] byte key. */
 VbPublicKey* PublicKeyAlloc(uint64_t key_size, uint64_t algorithm,
                             uint64_t version);
 
 
-/* Copy a public key from [src] to [dest].
- *
- * Returns 0 if success, non-zero if error. */
-int PublicKeyCopy(VbPublicKey* dest, const VbPublicKey* src);
-
-
 /* Read a public key from a .vbpubk file.  Caller owns the returned
  * pointer, and must free it with Free().
  *
  * Returns NULL if error. */
 VbPublicKey* PublicKeyRead(const char* filename);
 
 
 /* Read a public key from a .keyb file.  Caller owns the returned
  * pointer, and must free it with Free().
  *
  * Returns NULL if error. */
 VbPublicKey* PublicKeyReadKeyb(const char* filename, uint64_t algorithm,
                                uint64_t version);
 
 
 /* Write a public key to a file in .vbpubk format. */
 int PublicKeyWrite(const char* filename, const VbPublicKey* key);
 
 
 #endif  /* VBOOT_REFERENCE_HOST_KEY_H_ */