1 /* 2 * Copyright (c) 2013 The Chromium OS Authors. All rights reserved. 3 * Use of this source code is governed by a BSD-style license that can be 4 * found in the LICENSE file. 5 */ 6 #ifndef VBOOT_REFERENCE_FUTILITY_FILE_TYPE_H_ 7 #define VBOOT_REFERENCE_FUTILITY_FILE_TYPE_H_ 8 9 /* What type of things do I know how to handle? */ 10 enum futil_file_type { 11 FILE_TYPE_UNKNOWN, 12 FILE_TYPE_PUBKEY, /* VbPublicKey */ 13 FILE_TYPE_KEYBLOCK, /* VbKeyBlockHeader */ 14 FILE_TYPE_FW_PREAMBLE, /* VbFirmwarePreambleHeader */ 15 FILE_TYPE_GBB, /* GoogleBinaryBlockHeader */ 16 FILE_TYPE_BIOS_IMAGE, /* Chrome OS BIOS image */ 17 FILE_TYPE_OLD_BIOS_IMAGE, /* Old Chrome OS BIOS image */ 18 FILE_TYPE_KERN_PREAMBLE, /* VbKernelPreambleHeader */ 19 20 /* These are FILE_TYPE_UNKNOWN, but we've been told more about them */ 21 FILE_TYPE_RAW_FIRMWARE, /* FW_MAIN_A, etc. */ 22 FILE_TYPE_RAW_KERNEL, /* vmlinuz, *.uimg, etc. */ 23 24 FILE_TYPE_CHROMIUMOS_DISK, /* At least it has a GPT */ 25 FILE_TYPE_PRIVKEY, /* VbPrivateKey */ 26 27 NUM_FILE_TYPES 28 }; 29 30 /* Names for them */ 31 const char * const futil_file_type_str(enum futil_file_type type); 32 33 /* 34 * This tries to match the buffer content to one of the known file types. 35 */ 36 enum futil_file_type futil_file_type_buf(uint8_t *buf, uint32_t len); 37 38 /* 39 * This opens a file and tries to match it to one of the known file types. 40 * It's not an error if it returns FILE_TYPE_UKNOWN. 41 */ 42 enum futil_file_err futil_file_type(const char *filename, 43 enum futil_file_type *type); 44 45 /* Routines to identify particular file types. */ 46 enum futil_file_type recognize_bios_image(uint8_t *buf, uint32_t len); 47 enum futil_file_type recognize_gbb(uint8_t *buf, uint32_t len); 48 enum futil_file_type recognize_vblock1(uint8_t *buf, uint32_t len); 49 enum futil_file_type recognize_gpt(uint8_t *buf, uint32_t len); 50 enum futil_file_type recognize_privkey(uint8_t *buf, uint32_t len); 51 52 #endif /* VBOOT_REFERENCE_FUTILITY_FILE_TYPE_H_ */ 53