diff options
| author | Patrick Georgi <pgeorgi@chromium.org> | 2015-09-16 18:53:40 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-09-17 18:48:10 +0000 |
| commit | 377d1db57dae282cda94a2c24994707a32efdd00 (patch) | |
| tree | 754e8782770eaf851f9843a30a66d983ec408e37 /payloads/libpayload/include/cbfs_core.h | |
| parent | 81a4c85acf664156bb68807f681cd40928bf8267 (diff) | |
libpayload: bring in file attribute support from cbfstool
This comes from cbfstool (GPL) into libpayload (BSD-l), but I could have
just as well written it in libpayload first.
Change-Id: I86baefe5c299125a4733fa20523efd5d06de7182
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/11675
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'payloads/libpayload/include/cbfs_core.h')
| -rw-r--r-- | payloads/libpayload/include/cbfs_core.h | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/payloads/libpayload/include/cbfs_core.h b/payloads/libpayload/include/cbfs_core.h index a95cef7a3d..a2ee74459b 100644 --- a/payloads/libpayload/include/cbfs_core.h +++ b/payloads/libpayload/include/cbfs_core.h @@ -132,10 +132,34 @@ struct cbfs_file { char magic[8]; uint32_t len; uint32_t type; - uint32_t checksum; + uint32_t attributes_offset; uint32_t offset; + char filename[]; } __attribute__((packed)); +/* Depending on how the header was initialized, it may be backed with 0x00 or + * 0xff. Support both. */ +#define CBFS_FILE_ATTR_TAG_UNUSED 0 +#define CBFS_FILE_ATTR_TAG_UNUSED2 0xffffffff + +/* The common fields of extended cbfs file attributes. + Attributes are expected to start with tag/len, then append their + specific fields. */ +struct cbfs_file_attribute { + uint32_t tag; + /* len covers the whole structure, incl. tag and len */ + uint32_t len; + uint8_t data[0]; +} __attribute__((packed)); + +/* Given a cbfs_file, return the first file attribute, or NULL. */ +struct cbfs_file_attribute *cbfs_file_first_attr(struct cbfs_file *file); + +/* Given a cbfs_file and a cbfs_file_attribute, return the attribute that + * follows it, or NULL. */ +struct cbfs_file_attribute *cbfs_file_next_attr(struct cbfs_file *file, + struct cbfs_file_attribute *attr); + /*** Component sub-headers ***/ /* Following are component sub-headers for the "standard" |