/*-
* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <assert.h>
#include <libgeom.h>
#include <geom/label/g_label.h>
#include "core/geom.h"
#include "misc/subr.h"
#ifdef STATIC_GEOM_CLASSES
#define PUBSYM(x) glabel_##x
#else
#define PUBSYM(x) x
#endif
uint32_t PUBSYM(lib_version) = G_LIB_VERSION;
uint32_t PUBSYM(version) = G_LABEL_VERSION;
static void label_main(struct gctl_req *req, unsigned flags);
static void label_clear(struct gctl_req *req);
static void label_dump(struct gctl_req *req);
static void label_label(struct gctl_req *req);
struct g_command PUBSYM(class_commands)[] = {
{ "clear", G_FLAG_VERBOSE, label_main, G_NULL_OPTS,
"[-v] dev ..."
},
{ "create", G_FLAG_VERBOSE | G_FLAG_LOADKLD, NULL, G_NULL_OPTS,
"[-v] name dev"
},
{ "destroy", G_FLAG_VERBOSE, NULL,
{
{ 'f', "force", NULL, G_TYPE_BOOL },
G_OPT_SENTINEL
},
"[-fv] name ..."
},
{ "dump", 0, label_main, G_NULL_OPTS,
"dev ..."
},
{ "label", G_FLAG_VERBOSE | G_FLAG_LOADKLD, label_main, G_NULL_OPTS,
"[-v] name dev"
},
{ "stop", G_FLAG_VERBOSE, NULL,
{
{ 'f', "force", NULL, G_TYPE_BOOL },
G_OPT_SENTINEL
},
"[-fv] name ..."
},
G_CMD_SENTINEL
};
static int verbose = 0;
static void
label_main(struct gctl_req *req, unsigned flags)
{
const char *name;
if ((flags & G_FLAG_VERBOSE) != 0)
verbose = 1;
name = gctl_get_ascii(req, "verb");
if (name == NULL) {
gctl_error(req, "No '%s' argument.", "verb");
return;
}
if (strcmp(name, "label") == 0)
label_label(req);
else if (strcmp(name, "clear") == 0)
label_clear(req);
else if (strcmp(name, "dump") == 0)
label_dump(req);
else
gctl_error(req, "Unknown command: %s.", name);
}
static void
label_label(struct gctl_req *req)
{
struct g_label_metadata md;
const char *name, *label;
u_char sector[512];
int error, nargs;
nargs = gctl_get_int(req, "nargs");
if (nargs != 2) {
gctl_error(req, "Invalid number of arguments.");
return;
}
/*
* Clear last sector first to spoil all components if device exists.
*/
name = gctl_get_ascii(req, "arg1");
error = g_metadata_clear(name, NULL);
if (error != 0) {
gctl_error(req, "Can't store metadata on %s: %s.", name,
strerror(error));
return;
}
strlcpy(md.md_magic, G_LABEL_MAGIC, sizeof(md.md_magic));
md.md_version = G_LABEL_VERSION;
label = gctl_get_ascii(req, "arg0");
strlcpy(md.md_label, label, sizeof(md.md_label));
md.md_provsize = g_get_mediasize(name);
if (md.md_provsize == 0) {
gctl_error(req, "Can't get mediasize of %s: %s.", name,
strerror(errno));
return;
}
/*
* Ok, store metadata.
*/
label_metadata_encode(&md, sector);
error = g_metadata_store(name, sector, sizeof(sector));
if (error != 0) {
fprintf(stderr, "Can't store metadata on %s: %s.\n", name,
strerror(error));
gctl_error(req, "Not done.");
}
if (verbose)
printf("Metadata value stored on %s.\n", name);
}
static void
label_clear(struct gctl_req *req)
{
const char *name;
int error, i, nargs;
nargs = gctl_get_int(req, "nargs");
if (nargs < 1) {
gctl_error(req, "Too few arguments.");
return;
}
for (i = 0; i < nargs; i++) {
name = gctl_get_ascii(req, "arg%d", i);
error = g_metadata_clear(name, G_LABEL_MAGIC);
if (error != 0) {
fprintf(stderr, "Can't clear metadata on %s: %s.\n",
name, strerror(error));
gctl_error(req, "Not fully done.");
continue;
}
if (verbose)
printf("Metadata cleared on %s.\n", name);
}
}
static void
label_metadata_dump(const struct g_label_metadata *md)
{
printf(" Magic string: %s\n", md->md_magic);
printf("Metadata version: %u\n", (u_int)md->md_version);
printf(" Label: %s\n", md->md_label);
}
static void
label_dump(struct gctl_req *req)
{
struct g_label_metadata md, tmpmd;
const char *name;
int error, i, nargs;
nargs = gctl_get_int(req, "nargs");
if (nargs < 1) {
gctl_error(req, "Too few arguments.");
return;
}
for (i = 0; i < nargs; i++) {
name = gctl_get_ascii(req, "arg%d", i);
error = g_metadata_read(name, (u_char *)&tmpmd, sizeof(tmpmd),
G_LABEL_MAGIC);
if (error != 0) {
fprintf(stderr, "Can't read metadata from %s: %s.\n",
name, strerror(error));
gctl_error(req, "Not fully done.");
continue;
}
label_metadata_decode((u_char *)&tmpmd, &md);
printf("Metadata on %s:\n", name);
label_metadata_dump(&md);
printf("\n");
}
}
