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author | Lukasz Majewski <l.majewski@majess.pl> | 2015-11-20 07:06:16 (GMT) |
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committer | Tom Rini <trini@konsulko.com> | 2015-11-23 16:01:50 (GMT) |
commit | cef68bf9042dda6b77b5845a25f37b9ea882074b (patch) | |
tree | f88a860607adf1f1c80bd4f38a813c3386b126b7 /include/part.h | |
parent | 74f889b039b3a73bbe76663175527fdabebd3702 (diff) | |
download | u-boot-cef68bf9042dda6b77b5845a25f37b9ea882074b.tar.xz |
gpt: part: Definition and declaration of GPT verification functions
This commit provides definition and declaration of GPT verification
functions - namely gpt_verify_headers() and gpt_verify_partitions().
The former is used to only check CRC32 of GPT's header and PTEs.
The latter examines each partition entry and compare attributes such as:
name, start offset and size with ones provided at '$partitions' env
variable.
Signed-off-by: Lukasz Majewski <l.majewski@majess.pl>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Przemyslaw Marczak <p.marczak@samsung.com>
Diffstat (limited to 'include/part.h')
-rw-r--r-- | include/part.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/part.h b/include/part.h index 8b5ac12..720a867 100644 --- a/include/part.h +++ b/include/part.h @@ -267,6 +267,41 @@ int is_valid_gpt_buf(block_dev_desc_t *dev_desc, void *buf); * @return - '0' on success, otherwise error */ int write_mbr_and_gpt_partitions(block_dev_desc_t *dev_desc, void *buf); + +/** + * gpt_verify_headers() - Function to read and CRC32 check of the GPT's header + * and partition table entries (PTE) + * + * As a side effect if sets gpt_head and gpt_pte so they point to GPT data. + * + * @param dev_desc - block device descriptor + * @param gpt_head - pointer to GPT header data read from medium + * @param gpt_pte - pointer to GPT partition table enties read from medium + * + * @return - '0' on success, otherwise error + */ +int gpt_verify_headers(block_dev_desc_t *dev_desc, gpt_header *gpt_head, + gpt_entry **gpt_pte); + +/** + * gpt_verify_partitions() - Function to check if partitions' name, start and + * size correspond to '$partitions' env variable + * + * This function checks if on medium stored GPT data is in sync with information + * provided in '$partitions' environment variable. Specificially, name, start + * and size of the partition is checked. + * + * @param dev_desc - block device descriptor + * @param partitions - partition data read from '$partitions' env variable + * @param parts - number of partitions read from '$partitions' env variable + * @param gpt_head - pointer to GPT header data read from medium + * @param gpt_pte - pointer to GPT partition table enties read from medium + * + * @return - '0' on success, otherwise error + */ +int gpt_verify_partitions(block_dev_desc_t *dev_desc, + disk_partition_t *partitions, int parts, + gpt_header *gpt_head, gpt_entry **gpt_pte); #endif #endif /* _PART_H */ |