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Add 'geli version' subcommand, which will print GELI metadata version of each

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given GEOM provider or if not providers are given it will print versions
supported by userland geli(8) utility and by ELI GEOM class.

MFC after:	3 days
This commit is contained in:
Pawel Jakub Dawidek 2011-10-25 08:03:51 +00:00
parent 3bddbd0f3b
commit ef055009c2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=226723
2 changed files with 62 additions and 0 deletions
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15
sbin/geom/class/eli/geli.8
View File

@ -134,6 +134,9 @@ utility:
.Fl s Ar oldsize
.Ar prov
.Nm
.Cm version
.Op Ar prov ...
.Nm
.Cm clear
.Op Fl v
.Ar prov ...
@ -597,6 +600,18 @@ Additional options include:
.It Fl s Ar oldsize
The size of the provider before it was resized.
.El
.It Cm version
If no arguments are given, the
.Cm version
subcommand will print the version of
.Nm
userland utility as well as the version of the
.Nm ELI
GEOM class.
.Pp
If GEOM providers are specified, the
.Cm version
subcommand will print metadata version used by each of them.
.It Cm clear
Clear metadata from the given providers.
.It Cm dump

47
sbin/geom/class/eli/geom_eli.c
View File

@ -72,6 +72,7 @@ static void eli_kill(struct gctl_req *req);
static void eli_backup(struct gctl_req *req);
static void eli_restore(struct gctl_req *req);
static void eli_resize(struct gctl_req *req);
static void eli_version(struct gctl_req *req);
static void eli_clear(struct gctl_req *req);
static void eli_dump(struct gctl_req *req);
@ -96,6 +97,7 @@ static int eli_backup_create(struct gctl_req *req, const char *prov,
* backup [-v] prov file
* restore [-fv] file prov
* resize [-v] -s oldsize prov
* version [prov ...]
* clear [-v] prov ...
* dump [-v] prov ...
*/
@ -241,6 +243,9 @@ struct g_command class_commands[] = {
},
"[-v] -s oldsize prov"
},
{ "version", G_FLAG_LOADKLD, eli_main, G_NULL_OPTS,
"[prov ...]"
},
{ "clear", G_FLAG_VERBOSE, eli_main, G_NULL_OPTS,
"[-v] prov ..."
},
@ -309,6 +314,8 @@ eli_main(struct gctl_req *req, unsigned int flags)
eli_restore(req);
else if (strcmp(name, "resize") == 0)
eli_resize(req);
else if (strcmp(name, "version") == 0)
eli_version(req);
else if (strcmp(name, "dump") == 0)
eli_dump(req);
else if (strcmp(name, "clear") == 0)
@ -1523,6 +1530,46 @@ eli_resize(struct gctl_req *req)
}
}
static void
eli_version(struct gctl_req *req)
{
struct g_eli_metadata md;
const char *name;
unsigned int version;
int error, i, nargs;
nargs = gctl_get_int(req, "nargs");
if (nargs == 0) {
unsigned int kernver;
ssize_t size;
size = sizeof(kernver);
if (sysctlbyname("kern.geom.eli.version", &kernver, &size,
NULL, 0) == -1) {
warn("Unable to obtain GELI kernel version");
} else {
printf("kernel: %u\n", kernver);
}
printf("userland: %u\n", G_ELI_VERSION);
return;
}
for (i = 0; i < nargs; i++) {
name = gctl_get_ascii(req, "arg%d", i);
error = g_metadata_read(name, (unsigned char *)&md,
sizeof(md), G_ELI_MAGIC);
if (error != 0) {
warn("%s: Unable to read metadata: %s.", name,
strerror(error));
gctl_error(req, "Not fully done.");
continue;
}
version = le32dec(&md.md_version);
printf("%s: %u\n", name, version);
}
}
static void
eli_clear(struct gctl_req *req)
{