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authorLukasz Majewski <l.majewski@majess.pl>2015-11-20 08:06:16 +0100
committerTom Rini <trini@konsulko.com>2015-11-23 11:01:50 -0500
commitcef68bf9042dda6b77b5845a25f37b9ea882074b (patch)
treef88a860607adf1f1c80bd4f38a813c3386b126b7 /include/part.h
parent74f889b039b3a73bbe76663175527fdabebd3702 (diff)
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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 '$partitions' env variable. Signed-off-by: Lukasz Majewski <l.majewski@majess.pl> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Przemyslaw Marczak <p.marczak@samsung.com>
Diffstat (limited to 'include/part.h')
-rw-r--r--include/part.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/include/part.h b/include/part.h
index 8b5ac12..720a867 100644
--- a/include/part.h
+++ b/include/part.h
@@ -267,6 +267,41 @@ int is_valid_gpt_buf(block_dev_desc_t *dev_desc, void *buf);
* @return - '0' on success, otherwise error
*/
int write_mbr_and_gpt_partitions(block_dev_desc_t *dev_desc, void *buf);
+
+/**
+ * gpt_verify_headers() - Function to read and CRC32 check of the GPT's header
+ * and partition table entries (PTE)
+ *
+ * As a side effect if sets gpt_head and gpt_pte so they point to GPT data.
+ *
+ * @param dev_desc - block device descriptor
+ * @param gpt_head - pointer to GPT header data read from medium
+ * @param gpt_pte - pointer to GPT partition table enties read from medium
+ *
+ * @return - '0' on success, otherwise error
+ */
+int gpt_verify_headers(block_dev_desc_t *dev_desc, gpt_header *gpt_head,
+ gpt_entry **gpt_pte);
+
+/**
+ * gpt_verify_partitions() - Function to check if partitions' name, start and
+ * size correspond to '$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 */