diff options
Diffstat (limited to 'payloads/libpayload/include/cbfs_core.h')
| -rw-r--r-- | payloads/libpayload/include/cbfs_core.h | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/payloads/libpayload/include/cbfs_core.h b/payloads/libpayload/include/cbfs_core.h index a2ee74459b..3878e55f23 100644 --- a/payloads/libpayload/include/cbfs_core.h +++ b/payloads/libpayload/include/cbfs_core.h @@ -53,6 +53,7 @@ #include <endian.h> #include <stddef.h> #include <stdint.h> +#include <stdlib.h> /** These are standard values for the known compression alogrithms that coreboot knows about for stages and @@ -141,6 +142,7 @@ struct cbfs_file { * 0xff. Support both. */ #define CBFS_FILE_ATTR_TAG_UNUSED 0 #define CBFS_FILE_ATTR_TAG_UNUSED2 0xffffffff +#define CBFS_FILE_ATTR_TAG_COMPRESSION 0x42435a4c /* The common fields of extended cbfs file attributes. Attributes are expected to start with tag/len, then append their @@ -152,6 +154,14 @@ struct cbfs_file_attribute { uint8_t data[0]; } __attribute__((packed)); +struct cbfs_file_attr_compression { + uint32_t tag; + uint32_t len; + /* whole file compression format. 0 if no compression. */ + uint32_t compression; + uint32_t decompressed_size; +} __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); @@ -237,10 +247,14 @@ struct cbfs_media { int (*close)(struct cbfs_media *media); }; -/* returns pointer to a file entry inside CBFS or NULL */ +/* returns pointer to a file entry inside CBFS or NULL on error */ struct cbfs_file *cbfs_get_file(struct cbfs_media *media, const char *name); -/* returns pointer to file content inside CBFS after if type is correct */ +/* + * Returns pointer to a copy of the file content or NULL on error. + * If the file is compressed, data will be decompressed. + * The caller owns the returned memory. + */ void *cbfs_get_file_content(struct cbfs_media *media, const char *name, int type, size_t *sz); |