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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* 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 <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <strings.h>
#include <assert.h>
#include <libgeom.h>
#include <geom/raid3/g_raid3.h>
#include <core/geom.h>
#include <misc/subr.h>
uint32_t lib_version = G_LIB_VERSION;
uint32_t version = G_RAID3_VERSION;
static void raid3_main(struct gctl_req *req, unsigned f);
static void raid3_clear(struct gctl_req *req);
static void raid3_dump(struct gctl_req *req);
static void raid3_label(struct gctl_req *req);
struct g_command class_commands[] = {
{ "clear", G_FLAG_VERBOSE, raid3_main, G_NULL_OPTS,
"[-v] prov ..."
},
{ "configure", G_FLAG_VERBOSE, NULL,
{
{ 'a', "autosync", NULL, G_TYPE_BOOL },
{ 'd', "dynamic", NULL, G_TYPE_BOOL },
{ 'f', "failsync", NULL, G_TYPE_BOOL },
{ 'F', "nofailsync", NULL, G_TYPE_BOOL },
{ 'h', "hardcode", NULL, G_TYPE_BOOL },
{ 'n', "noautosync", NULL, G_TYPE_BOOL },
{ 'r', "round_robin", NULL, G_TYPE_BOOL },
{ 'R', "noround_robin", NULL, G_TYPE_BOOL },
{ 'w', "verify", NULL, G_TYPE_BOOL },
{ 'W', "noverify", NULL, G_TYPE_BOOL },
G_OPT_SENTINEL
},
"[-adfFhnrRvwW] name"
},
{ "dump", 0, raid3_main, G_NULL_OPTS,
"prov ..."
},
{ "insert", G_FLAG_VERBOSE, NULL,
{
{ 'h', "hardcode", NULL, G_TYPE_BOOL },
{ 'n', "number", G_VAL_OPTIONAL, G_TYPE_NUMBER },
G_OPT_SENTINEL
},
"[-hv] <-n number> name prov"
},
{ "label", G_FLAG_VERBOSE, raid3_main,
{
{ 'h', "hardcode", NULL, G_TYPE_BOOL },
{ 'F', "nofailsync", NULL, G_TYPE_BOOL },
{ 'n', "noautosync", NULL, G_TYPE_BOOL },
{ 'r', "round_robin", NULL, G_TYPE_BOOL },
{ 's', "sectorsize", "0", G_TYPE_NUMBER },
{ 'w', "verify", NULL, G_TYPE_BOOL },
G_OPT_SENTINEL
},
"[-hFnrvw] [-s blocksize] name prov prov prov ..."
},
{ "rebuild", G_FLAG_VERBOSE, NULL, G_NULL_OPTS,
"[-v] name prov"
},
{ "remove", G_FLAG_VERBOSE, NULL,
{
{ 'n', "number", NULL, G_TYPE_NUMBER },
G_OPT_SENTINEL
},
"[-v] <-n number> name"
},
{ "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
raid3_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)
raid3_label(req);
else if (strcmp(name, "clear") == 0)
raid3_clear(req);
else if (strcmp(name, "dump") == 0)
raid3_dump(req);
else
gctl_error(req, "Unknown command: %s.", name);
}
static void
raid3_label(struct gctl_req *req)
{
struct g_raid3_metadata md;
u_char sector[512];
const char *str;
unsigned sectorsize, ssize;
off_t mediasize, msize;
int hardcode, round_robin, verify;
int error, i, nargs;
bzero(sector, sizeof(sector));
nargs = gctl_get_int(req, "nargs");
if (nargs < 4) {
gctl_error(req, "Too few arguments.");
return;
}
if (bitcount32(nargs - 2) != 1) {
gctl_error(req, "Invalid number of components.");
return;
}
strlcpy(md.md_magic, G_RAID3_MAGIC, sizeof(md.md_magic));
md.md_version = G_RAID3_VERSION;
str = gctl_get_ascii(req, "arg0");
strlcpy(md.md_name, str, sizeof(md.md_name));
md.md_id = arc4random();
md.md_all = nargs - 1;
md.md_mflags = 0;
md.md_dflags = 0;
md.md_genid = 0;
md.md_syncid = 1;
md.md_sync_offset = 0;
if (gctl_get_int(req, "noautosync"))
md.md_mflags |= G_RAID3_DEVICE_FLAG_NOAUTOSYNC;
if (gctl_get_int(req, "nofailsync"))
md.md_mflags |= G_RAID3_DEVICE_FLAG_NOFAILSYNC;
round_robin = gctl_get_int(req, "round_robin");
if (round_robin)
md.md_mflags |= G_RAID3_DEVICE_FLAG_ROUND_ROBIN;
verify = gctl_get_int(req, "verify");
if (verify)
md.md_mflags |= G_RAID3_DEVICE_FLAG_VERIFY;
if (round_robin && verify) {
gctl_error(req, "Both '%c' and '%c' options given.", 'r', 'w');
return;
}
hardcode = gctl_get_int(req, "hardcode");
/*
* Calculate sectorsize by finding least common multiple from
* sectorsizes of every disk and find the smallest mediasize.
*/
mediasize = 0;
sectorsize = gctl_get_intmax(req, "sectorsize");
for (i = 1; i < nargs; i++) {
str = gctl_get_ascii(req, "arg%d", i);
msize = g_get_mediasize(str);
ssize = g_get_sectorsize(str);
if (msize == 0 || ssize == 0) {
gctl_error(req, "Can't get informations about %s: %s.",
str, strerror(errno));
return;
}
msize -= ssize;
if (mediasize == 0 || (mediasize > 0 && msize < mediasize))
mediasize = msize;
if (sectorsize == 0)
sectorsize = ssize;
else
sectorsize = g_lcm(sectorsize, ssize);
}
md.md_mediasize = mediasize * (nargs - 2);
md.md_sectorsize = sectorsize * (nargs - 2);
md.md_mediasize -= (md.md_mediasize % md.md_sectorsize);
if (md.md_sectorsize > MAXPHYS) {
gctl_error(req, "The blocksize is too big.");
return;
}
/*
* Clear last sector first, to spoil all components if device exists.
*/
for (i = 1; i < nargs; i++) {
str = gctl_get_ascii(req, "arg%d", i);
error = g_metadata_clear(str, NULL);
if (error != 0) {
gctl_error(req, "Can't store metadata on %s: %s.", str,
strerror(error));
return;
}
}
/*
* Ok, store metadata (use disk number as priority).
*/
for (i = 1; i < nargs; i++) {
str = gctl_get_ascii(req, "arg%d", i);
msize = g_get_mediasize(str);
ssize = g_get_sectorsize(str);
if (mediasize < msize - ssize) {
fprintf(stderr,
"warning: %s: only %jd bytes from %jd bytes used.\n",
str, (intmax_t)mediasize, (intmax_t)(msize - ssize));
}
md.md_no = i - 1;
md.md_provsize = msize;
if (!hardcode)
bzero(md.md_provider, sizeof(md.md_provider));
else {
if (strncmp(str, _PATH_DEV, sizeof(_PATH_DEV) - 1) == 0)
str += sizeof(_PATH_DEV) - 1;
strlcpy(md.md_provider, str, sizeof(md.md_provider));
}
if (verify && md.md_no == md.md_all - 1) {
/*
* In "verify" mode, force synchronization of parity
* component on start.
*/
md.md_syncid = 0;
}
raid3_metadata_encode(&md, sector);
error = g_metadata_store(str, sector, sizeof(sector));
if (error != 0) {
fprintf(stderr, "Can't store metadata on %s: %s.\n",
str, strerror(error));
gctl_error(req, "Not fully done.");
continue;
}
if (verbose)
printf("Metadata value stored on %s.\n", str);
}
}
static void
raid3_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_RAID3_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
raid3_dump(struct gctl_req *req)
{
struct g_raid3_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_RAID3_MAGIC);
if (error != 0) {
fprintf(stderr, "Can't read metadata from %s: %s.\n",
name, strerror(error));
gctl_error(req, "Not fully done.");
continue;
}
if (raid3_metadata_decode((u_char *)&tmpmd, &md) != 0) {
fprintf(stderr, "MD5 hash mismatch for %s, skipping.\n",
name);
gctl_error(req, "Not fully done.");
continue;
}
printf("Metadata on %s:\n", name);
raid3_metadata_dump(&md);
printf("\n");
}
}