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authorpjd <pjd@FreeBSD.org>2011-10-25 08:03:51 +0000
committerpjd <pjd@FreeBSD.org>2011-10-25 08:03:51 +0000
commit0d4638bd6b4339682101cbabef7d706be660fb70 (patch)
tree25e3ced57c3b0483742460394908c5c95c67d936 /sbin
parentcf29098f00348555b42a4f4715da05d8abac8582 (diff)
downloadFreeBSD-src-0d4638bd6b4339682101cbabef7d706be660fb70.zip
FreeBSD-src-0d4638bd6b4339682101cbabef7d706be660fb70.tar.gz
Add 'geli version' subcommand, which will print GELI metadata version of each
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
Diffstat (limited to 'sbin')
-rw-r--r--sbin/geom/class/eli/geli.815
-rw-r--r--sbin/geom/class/eli/geom_eli.c47
2 files changed, 62 insertions, 0 deletions
diff --git a/sbin/geom/class/eli/geli.8 b/sbin/geom/class/eli/geli.8
index 6c46680..59361ec 100644
--- a/sbin/geom/class/eli/geli.8
+++ b/sbin/geom/class/eli/geli.8
@@ -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
diff --git a/sbin/geom/class/eli/geom_eli.c b/sbin/geom/class/eli/geom_eli.c
index 183b11c..f3553c5 100644
--- a/sbin/geom/class/eli/geom_eli.c
+++ b/sbin/geom/class/eli/geom_eli.c
@@ -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)
@@ -1524,6 +1531,46 @@ out:
}
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)
{
const char *name;
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