nvme-gen-dhchap-key1
Generate a host dh-hmac-chap secret (deprecated)
Usage
nvme [<global-options>]
gen-dhchap-key
[{--hmac=<hmac-id> | -m
<hmac-id>}]
[{--secret=<secret> | -s
<secret>}]
[{--key-length=<len> | -l
<len>}]
[{--nqn=<host-nqn> | -n
<host-nqn>}]
Overview
Deprecated alias for nvme-keys-gen-kxchap-secret(1), kept for scripts written against nvme-cli versions older than 3.0. It forwards to that command, with three differences from nvme-cli 2.x:
• --nqn/-n is accepted and ignored, with a warning.
• --secret/-s goes into the DHHC-1 string as it stands, where 2.x put the key transformed from it, so the output differs whenever --hmac is non-zero.
• --secret/-s with an odd number of hexadecimal characters is rejected, where 2.x padded the trailing one with a zero and emitted a secret that was never given.
New scripts should use nvme keys gen-kxchap-secret instead. This alias prints a deprecation warning on stderr and may be removed in a future release.
See nvme-keys-gen-kxchap-secret(1) for the full option reference.
Options
The following options are defined at the top-level nvme command and are available to this subcommand:
-
--dry-run -
Print the command that would be executed, but do not actually execute it.
-
--no-ioctl-probing -
Disable probing for 64-bit IOCTL support.
-
--no-retries -
Disable retry logic on transient errors.
-
-o <fmt>, --output-format=<fmt> -
Set the reporting format to normal, tabular, 'json, or binary. Only one output format may be used at a time.
-
--output-format-version=<version> -
Select the output format version. Version 1 uses the original field naming, while version 2 (default) provides more consistent and script-friendly field names. Other versions are rejected.
-
--quiet -
Suppress informational messages. Errors are still reported, and --quiet cancels any --verbose for the library log level.
-
--set-options=<key=value>[,<key=value>...] -
Set libnvme library options for this invocation. Supported keys are force-4k, mi-probe-enabled, test-base-dir and test-sysfs-dir.
-
--timeout=<ms> -
Set the timeout for the command in milliseconds. infinite or -1 waits without a time limit (0xffffffff).
-
-v, --verbose -
Increase the level of detail in the output. May be specified multiple times to further increase verbosity.
These options can also be set as machine-wide defaults in nvme-cli.conf(5). A command-line flag always overrides the file.
Examples
No Examples
Nvme
Part of the nvme-user suite