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Diffstat (limited to 'futility/file_type.h')
| -rw-r--r-- | futility/file_type.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/futility/file_type.h b/futility/file_type.h new file mode 100644 index 00000000..f8aa97e7 --- /dev/null +++ b/futility/file_type.h @@ -0,0 +1,50 @@ +/* + * Copyright (c) 2013 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. + */ +#ifndef VBOOT_REFERENCE_FUTILITY_FILE_TYPE_H_ +#define VBOOT_REFERENCE_FUTILITY_FILE_TYPE_H_ + +/* What type of things do I know how to handle? */ +enum futil_file_type { + FILE_TYPE_UNKNOWN, + FILE_TYPE_PUBKEY, /* VbPublicKey */ + FILE_TYPE_KEYBLOCK, /* VbKeyBlockHeader */ + FILE_TYPE_FW_PREAMBLE, /* VbFirmwarePreambleHeader */ + FILE_TYPE_GBB, /* GoogleBinaryBlockHeader */ + FILE_TYPE_BIOS_IMAGE, /* Chrome OS BIOS image */ + FILE_TYPE_OLD_BIOS_IMAGE, /* Old Chrome OS BIOS image */ + FILE_TYPE_KERN_PREAMBLE, /* VbKernelPreambleHeader */ + + /* These are FILE_TYPE_UNKNOWN, but we've been told more about them */ + FILE_TYPE_RAW_FIRMWARE, /* FW_MAIN_A, etc. */ + FILE_TYPE_RAW_KERNEL, /* vmlinuz, *.uimg, etc. */ + + FILE_TYPE_CHROMIUMOS_DISK, /* At least it has a GPT */ + + NUM_FILE_TYPES +}; + +/* Names for them */ +const char * const futil_file_type_str(enum futil_file_type type); + +/* + * This tries to match the buffer content to one of the known file types. + */ +enum futil_file_type futil_file_type_buf(uint8_t *buf, uint32_t len); + +/* + * This opens a file and tries to match it to one of the known file types. + * It's not an error if it returns FILE_TYPE_UKNOWN. + */ +enum futil_file_err futil_file_type(const char *filename, + enum futil_file_type *type); + +/* Routines to identify particular file types. */ +enum futil_file_type recognize_bios_image(uint8_t *buf, uint32_t len); +enum futil_file_type recognize_gbb(uint8_t *buf, uint32_t len); +enum futil_file_type recognize_vblock1(uint8_t *buf, uint32_t len); +enum futil_file_type recognize_gpt(uint8_t *buf, uint32_t len); + +#endif /* VBOOT_REFERENCE_FUTILITY_FILE_TYPE_H_ */ |