Merging upstream version 1.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 49 insertions, 0 deletions

diff --git a/src/nvme/util.h b/src/nvme/util.h
index 6f1d3e9..e72c156 100644
--- a/src/nvme/util.h
+++ b/src/nvme/util.h
@@ -156,6 +156,23 @@ void nvme_init_copy_range_f1(struct nvme_copy_range_f1 *copy, __u16 *nlbs,
 int nvme_get_feature_length(int fid, __u32 cdw11, __u32 *len);
 
 /**
+ * nvme_get_feature_length2() - Retreive the command payload length for a
+ *			       specific feature identifier
+ * @fid:   Feature identifier, see &enum nvme_features_id.
+ * @cdw11: The cdw11 value may affect the transfer (only known fid is
+ *	   %NVME_FEAT_FID_HOST_ID)
+ * @dir:   Data transfer direction: false - host to controller, true -
+ *	   controller to host may affect the transfer (only known fid is
+ *	   %NVME_FEAT_FID_HOST_MEM_BUF).
+ * @len:   On success, set to this features payload length in bytes.
+ *
+ * Return: 0 on success, -1 with errno set to EINVAL if the function did not
+ * recognize &fid.
+ */
+int nvme_get_feature_length2(int fid, __u32 cdw11, enum nvme_data_tfr dir,
+			     __u32 *len);
+
+/**
  * nvme_get_directive_receive_length() - Get directive receive length
  * @dtype: Directive type, see &enum nvme_directive_dtype
  * @doper: Directive receive operation, see &enum nvme_directive_receive_doper
@@ -575,4 +592,36 @@ enum nvme_version {
  */
 const char *nvme_get_version(enum nvme_version type);
 
+#define NVME_UUID_LEN_STRING	37  /* 1b4e28ba-2fa1-11d2-883f-0016d3cca427 + \0 */
+#define NVME_UUID_LEN		16
+
+/**
+ * nvme_uuid_to_string - Return string represenation of encoded UUID
+ * @uuid:	Binary encoded input UUID
+ * @str:	Output string represenation of UUID
+ *
+ * Return: Returns error code if type conversion fails.
+ */
+int nvme_uuid_to_string(unsigned char uuid[NVME_UUID_LEN], char *str);
+
+/**
+ * nvme_uuid_from_string - Return encoded UUID represenation of string UUID
+ * @uuid:	Binary encoded input UUID
+ * @str:	Output string represenation of UUID
+ *
+ * Return: Returns error code if type conversion fails.
+ */
+int nvme_uuid_from_string(const char *str, unsigned char uuid[NVME_UUID_LEN]);
+
+/**
+ * nvme_uuid_random - Generate random UUID
+ * @uuid:       Generated random UUID
+ *
+ * Generate random number according
+ * https://www.rfc-editor.org/rfc/rfc4122#section-4.4
+ *
+ * Return: Returns error code if generating of random number fails.
+ */
+int nvme_uuid_random(unsigned char uuid[NVME_UUID_LEN]);
+
 #endif /* _LIBNVME_UTIL_H */