| Current Path : /usr/src/sbin/geom/class/part/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/sbin/geom/class/part/geom_part.c |
/*-
* Copyright (c) 2007, 2008 Marcel Moolenaar
* 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: release/9.1.0/sbin/geom/class/part/geom_part.c 235258 2012-05-11 04:02:17Z ae $");
#include <sys/stat.h>
#include <sys/vtoc.h>
#include <assert.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <libgeom.h>
#include <libutil.h>
#include <paths.h>
#include <signal.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <inttypes.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include "core/geom.h"
#include "misc/subr.h"
#ifdef STATIC_GEOM_CLASSES
#define PUBSYM(x) gpart_##x
#else
#define PUBSYM(x) x
#endif
uint32_t PUBSYM(lib_version) = G_LIB_VERSION;
uint32_t PUBSYM(version) = 0;
static char sstart[32];
static char ssize[32];
volatile sig_atomic_t undo_restore;
#define GPART_AUTOFILL "*"
#define GPART_FLAGS "C"
#define GPART_PARAM_BOOTCODE "bootcode"
#define GPART_PARAM_INDEX "index"
#define GPART_PARAM_PARTCODE "partcode"
static struct gclass *find_class(struct gmesh *, const char *);
static struct ggeom * find_geom(struct gclass *, const char *);
static const char *find_geomcfg(struct ggeom *, const char *);
static const char *find_provcfg(struct gprovider *, const char *);
static struct gprovider *find_provider(struct ggeom *, off_t);
static const char *fmtsize(int64_t);
static int gpart_autofill(struct gctl_req *);
static int gpart_autofill_resize(struct gctl_req *);
static void gpart_bootcode(struct gctl_req *, unsigned int);
static void *gpart_bootfile_read(const char *, ssize_t *);
static void gpart_issue(struct gctl_req *, unsigned int);
static void gpart_show(struct gctl_req *, unsigned int);
static void gpart_show_geom(struct ggeom *, const char *, int);
static int gpart_show_hasopt(struct gctl_req *, const char *, const char *);
static void gpart_write_partcode(struct ggeom *, int, void *, ssize_t);
static void gpart_write_partcode_vtoc8(struct ggeom *, int, void *);
static void gpart_print_error(const char *);
static void gpart_backup(struct gctl_req *, unsigned int);
static void gpart_restore(struct gctl_req *, unsigned int);
struct g_command PUBSYM(class_commands)[] = {
{ "add", 0, gpart_issue, {
{ 'a', "alignment", GPART_AUTOFILL, G_TYPE_STRING },
{ 'b', "start", GPART_AUTOFILL, G_TYPE_STRING },
{ 's', "size", GPART_AUTOFILL, G_TYPE_STRING },
{ 't', "type", NULL, G_TYPE_STRING },
{ 'i', GPART_PARAM_INDEX, G_VAL_OPTIONAL, G_TYPE_NUMBER },
{ 'l', "label", G_VAL_OPTIONAL, G_TYPE_STRING },
{ 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
G_OPT_SENTINEL },
"-t type [-a alignment] [-b start] [-s size] [-i index] "
"[-l label] [-f flags] geom"
},
{ "backup", 0, gpart_backup, G_NULL_OPTS,
"geom"
},
{ "bootcode", 0, gpart_bootcode, {
{ 'b', GPART_PARAM_BOOTCODE, G_VAL_OPTIONAL, G_TYPE_STRING },
{ 'p', GPART_PARAM_PARTCODE, G_VAL_OPTIONAL, G_TYPE_STRING },
{ 'i', GPART_PARAM_INDEX, G_VAL_OPTIONAL, G_TYPE_NUMBER },
{ 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
G_OPT_SENTINEL },
"[-b bootcode] [-p partcode -i index] [-f flags] geom"
},
{ "commit", 0, gpart_issue, G_NULL_OPTS,
"geom"
},
{ "create", 0, gpart_issue, {
{ 's', "scheme", NULL, G_TYPE_STRING },
{ 'n', "entries", G_VAL_OPTIONAL, G_TYPE_NUMBER },
{ 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
G_OPT_SENTINEL },
"-s scheme [-n entries] [-f flags] provider"
},
{ "delete", 0, gpart_issue, {
{ 'i', GPART_PARAM_INDEX, NULL, G_TYPE_NUMBER },
{ 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
G_OPT_SENTINEL },
"-i index [-f flags] geom"
},
{ "destroy", 0, gpart_issue, {
{ 'F', "force", NULL, G_TYPE_BOOL },
{ 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
G_OPT_SENTINEL },
"[-F] [-f flags] geom"
},
{ "modify", 0, gpart_issue, {
{ 'i', GPART_PARAM_INDEX, NULL, G_TYPE_NUMBER },
{ 'l', "label", G_VAL_OPTIONAL, G_TYPE_STRING },
{ 't', "type", G_VAL_OPTIONAL, G_TYPE_STRING },
{ 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
G_OPT_SENTINEL },
"-i index [-l label] [-t type] [-f flags] geom"
},
{ "set", 0, gpart_issue, {
{ 'a', "attrib", NULL, G_TYPE_STRING },
{ 'i', GPART_PARAM_INDEX, NULL, G_TYPE_NUMBER },
{ 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
G_OPT_SENTINEL },
"-a attrib -i index [-f flags] geom"
},
{ "show", 0, gpart_show, {
{ 'l', "show_label", NULL, G_TYPE_BOOL },
{ 'r', "show_rawtype", NULL, G_TYPE_BOOL },
{ 'p', "show_providers", NULL, G_TYPE_BOOL },
G_OPT_SENTINEL },
"[-l | -r] [-p] [geom ...]"
},
{ "undo", 0, gpart_issue, G_NULL_OPTS,
"geom"
},
{ "unset", 0, gpart_issue, {
{ 'a', "attrib", NULL, G_TYPE_STRING },
{ 'i', GPART_PARAM_INDEX, NULL, G_TYPE_NUMBER },
{ 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
G_OPT_SENTINEL },
"-a attrib -i index [-f flags] geom"
},
{ "resize", 0, gpart_issue, {
{ 'a', "alignment", GPART_AUTOFILL, G_TYPE_STRING },
{ 's', "size", GPART_AUTOFILL, G_TYPE_STRING },
{ 'i', GPART_PARAM_INDEX, NULL, G_TYPE_NUMBER },
{ 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
G_OPT_SENTINEL },
"-i index [-a alignment] [-s size] [-f flags] geom"
},
{ "restore", 0, gpart_restore, {
{ 'F', "force", NULL, G_TYPE_BOOL },
{ 'l', "restore_labels", NULL, G_TYPE_BOOL },
{ 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
G_OPT_SENTINEL },
"[-lF] [-f flags] provider [...]"
},
{ "recover", 0, gpart_issue, {
{ 'f', "flags", GPART_FLAGS, G_TYPE_STRING },
G_OPT_SENTINEL },
"[-f flags] geom"
},
G_CMD_SENTINEL
};
static struct gclass *
find_class(struct gmesh *mesh, const char *name)
{
struct gclass *classp;
LIST_FOREACH(classp, &mesh->lg_class, lg_class) {
if (strcmp(classp->lg_name, name) == 0)
return (classp);
}
return (NULL);
}
static struct ggeom *
find_geom(struct gclass *classp, const char *name)
{
struct ggeom *gp;
if (strncmp(name, _PATH_DEV, sizeof(_PATH_DEV) - 1) == 0)
name += sizeof(_PATH_DEV) - 1;
LIST_FOREACH(gp, &classp->lg_geom, lg_geom) {
if (strcmp(gp->lg_name, name) == 0)
return (gp);
}
return (NULL);
}
static const char *
find_geomcfg(struct ggeom *gp, const char *cfg)
{
struct gconfig *gc;
LIST_FOREACH(gc, &gp->lg_config, lg_config) {
if (!strcmp(gc->lg_name, cfg))
return (gc->lg_val);
}
return (NULL);
}
static const char *
find_provcfg(struct gprovider *pp, const char *cfg)
{
struct gconfig *gc;
LIST_FOREACH(gc, &pp->lg_config, lg_config) {
if (!strcmp(gc->lg_name, cfg))
return (gc->lg_val);
}
return (NULL);
}
static struct gprovider *
find_provider(struct ggeom *gp, off_t minsector)
{
struct gprovider *pp, *bestpp;
const char *s;
off_t sector, bestsector;
bestpp = NULL;
bestsector = 0;
LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
s = find_provcfg(pp, "start");
sector = (off_t)strtoimax(s, NULL, 0);
if (sector < minsector)
continue;
if (bestpp != NULL && sector >= bestsector)
continue;
bestpp = pp;
bestsector = sector;
}
return (bestpp);
}
static const char *
fmtsize(int64_t rawsz)
{
static char buf[5];
humanize_number(buf, sizeof(buf), rawsz, "", HN_AUTOSCALE,
HN_B | HN_NOSPACE | HN_DECIMAL);
return (buf);
}
static const char *
fmtattrib(struct gprovider *pp)
{
static char buf[128];
struct gconfig *gc;
u_int idx;
buf[0] = '\0';
idx = 0;
LIST_FOREACH(gc, &pp->lg_config, lg_config) {
if (strcmp(gc->lg_name, "attrib") != 0)
continue;
idx += snprintf(buf + idx, sizeof(buf) - idx, "%s%s",
(idx == 0) ? " [" : ",", gc->lg_val);
}
if (idx > 0)
snprintf(buf + idx, sizeof(buf) - idx, "] ");
return (buf);
}
#define ALIGNDOWN(d, a) ((d) - (d) % (a))
#define ALIGNUP(d, a) ((d) % (a) ? (d) - (d) % (a) + (a): (d))
static int
gpart_autofill_resize(struct gctl_req *req)
{
struct gmesh mesh;
struct gclass *cp;
struct ggeom *gp;
struct gprovider *pp;
off_t last, size, start, new_size;
off_t lba, new_lba, alignment, offset;
const char *s;
int error, idx, has_alignment;
idx = (int)gctl_get_intmax(req, GPART_PARAM_INDEX);
if (idx < 1)
errx(EXIT_FAILURE, "invalid partition index");
error = geom_gettree(&mesh);
if (error)
return (error);
s = gctl_get_ascii(req, "class");
if (s == NULL)
abort();
cp = find_class(&mesh, s);
if (cp == NULL)
errx(EXIT_FAILURE, "Class %s not found.", s);
s = gctl_get_ascii(req, "arg0");
if (s == NULL)
abort();
gp = find_geom(cp, s);
if (gp == NULL)
errx(EXIT_FAILURE, "No such geom: %s.", s);
pp = LIST_FIRST(&gp->lg_consumer)->lg_provider;
if (pp == NULL)
errx(EXIT_FAILURE, "Provider for geom %s not found.", s);
s = gctl_get_ascii(req, "alignment");
has_alignment = (*s == '*') ? 0 : 1;
alignment = 1;
if (has_alignment) {
error = g_parse_lba(s, pp->lg_sectorsize, &alignment);
if (error)
errc(EXIT_FAILURE, error, "Invalid alignment param");
if (alignment == 0)
errx(EXIT_FAILURE, "Invalid alignment param");
} else {
lba = pp->lg_stripesize / pp->lg_sectorsize;
if (lba > 0)
alignment = lba;
}
error = gctl_delete_param(req, "alignment");
if (error)
errc(EXIT_FAILURE, error, "internal error");
s = gctl_get_ascii(req, "size");
if (*s == '*')
new_size = 0;
else {
error = g_parse_lba(s, pp->lg_sectorsize, &new_size);
if (error)
errc(EXIT_FAILURE, error, "Invalid size param");
/* no autofill necessary. */
if (has_alignment == 0)
goto done;
}
offset = (pp->lg_stripeoffset / pp->lg_sectorsize) % alignment;
last = (off_t)strtoimax(find_geomcfg(gp, "last"), NULL, 0);
LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
s = find_provcfg(pp, "index");
if (s == NULL)
continue;
if (atoi(s) == idx)
break;
}
if (pp == NULL)
errx(EXIT_FAILURE, "invalid partition index");
s = find_provcfg(pp, "start");
start = (off_t)strtoimax(s, NULL, 0);
s = find_provcfg(pp, "end");
lba = (off_t)strtoimax(s, NULL, 0);
size = lba - start + 1;
pp = find_provider(gp, lba + 1);
if (new_size > 0 && (new_size <= size || pp == NULL)) {
/* The start offset may be not aligned, so we align the end
* offset and then calculate the size.
*/
new_size = ALIGNDOWN(start + offset + new_size,
alignment) - start - offset;
goto done;
}
if (pp == NULL) {
new_size = ALIGNDOWN(last + offset + 1, alignment) -
start - offset;
if (new_size < size)
return (ENOSPC);
} else {
s = find_provcfg(pp, "start");
new_lba = (off_t)strtoimax(s, NULL, 0);
/*
* Is there any free space between current and
* next providers?
*/
new_lba = ALIGNDOWN(new_lba + offset, alignment) - offset;
if (new_lba > lba)
new_size = new_lba - start;
else {
geom_deletetree(&mesh);
return (ENOSPC);
}
}
done:
snprintf(ssize, sizeof(ssize), "%jd", (intmax_t)new_size);
gctl_change_param(req, "size", -1, ssize);
geom_deletetree(&mesh);
return (0);
}
static int
gpart_autofill(struct gctl_req *req)
{
struct gmesh mesh;
struct gclass *cp;
struct ggeom *gp;
struct gprovider *pp;
off_t first, last, a_first;
off_t size, start, a_lba;
off_t lba, len, alignment, offset;
uintmax_t grade;
const char *s;
int error, has_size, has_start, has_alignment;
s = gctl_get_ascii(req, "verb");
if (strcmp(s, "resize") == 0)
return gpart_autofill_resize(req);
if (strcmp(s, "add") != 0)
return (0);
error = geom_gettree(&mesh);
if (error)
return (error);
s = gctl_get_ascii(req, "class");
if (s == NULL)
abort();
cp = find_class(&mesh, s);
if (cp == NULL)
errx(EXIT_FAILURE, "Class %s not found.", s);
s = gctl_get_ascii(req, "arg0");
if (s == NULL)
abort();
gp = find_geom(cp, s);
if (gp == NULL)
errx(EXIT_FAILURE, "No such geom: %s.", s);
pp = LIST_FIRST(&gp->lg_consumer)->lg_provider;
if (pp == NULL)
errx(EXIT_FAILURE, "Provider for geom %s not found.", s);
s = gctl_get_ascii(req, "alignment");
has_alignment = (*s == '*') ? 0 : 1;
alignment = 1;
if (has_alignment) {
error = g_parse_lba(s, pp->lg_sectorsize, &alignment);
if (error)
errc(EXIT_FAILURE, error, "Invalid alignment param");
if (alignment == 0)
errx(EXIT_FAILURE, "Invalid alignment param");
}
error = gctl_delete_param(req, "alignment");
if (error)
errc(EXIT_FAILURE, error, "internal error");
s = gctl_get_ascii(req, "size");
has_size = (*s == '*') ? 0 : 1;
size = 0;
if (has_size) {
error = g_parse_lba(s, pp->lg_sectorsize, &size);
if (error)
errc(EXIT_FAILURE, error, "Invalid size param");
}
s = gctl_get_ascii(req, "start");
has_start = (*s == '*') ? 0 : 1;
start = 0ULL;
if (has_start) {
error = g_parse_lba(s, pp->lg_sectorsize, &start);
if (error)
errc(EXIT_FAILURE, error, "Invalid start param");
}
/* No autofill necessary. */
if (has_size && has_start && !has_alignment)
goto done;
len = pp->lg_stripesize / pp->lg_sectorsize;
if (len > 0 && !has_alignment)
alignment = len;
/* Adjust parameters to stripeoffset */
offset = (pp->lg_stripeoffset / pp->lg_sectorsize) % alignment;
start = ALIGNUP(start + offset, alignment);
if (size > alignment)
size = ALIGNDOWN(size, alignment);
first = (off_t)strtoimax(find_geomcfg(gp, "first"), NULL, 0);
last = (off_t)strtoimax(find_geomcfg(gp, "last"), NULL, 0);
grade = ~0ULL;
a_first = ALIGNUP(first + offset, alignment);
last = ALIGNDOWN(last + offset, alignment);
if (a_first < start)
a_first = start;
while ((pp = find_provider(gp, first)) != NULL) {
s = find_provcfg(pp, "start");
lba = (off_t)strtoimax(s, NULL, 0);
a_lba = ALIGNDOWN(lba + offset, alignment);
if (first < a_lba && a_first < a_lba) {
/* Free space [first, lba> */
len = a_lba - a_first;
if (has_size) {
if (len >= size &&
(uintmax_t)(len - size) < grade) {
start = a_first;
grade = len - size;
}
} else if (has_start) {
if (start >= a_first && start < a_lba) {
size = a_lba - start;
grade = start - a_first;
}
} else {
if (grade == ~0ULL || len > size) {
start = a_first;
size = len;
grade = 0;
}
}
}
s = find_provcfg(pp, "end");
first = (off_t)strtoimax(s, NULL, 0) + 1;
if (first > a_first)
a_first = ALIGNUP(first + offset, alignment);
}
if (a_first <= last) {
/* Free space [first-last] */
len = ALIGNDOWN(last - a_first + 1, alignment);
if (has_size) {
if (len >= size &&
(uintmax_t)(len - size) < grade) {
start = a_first;
grade = len - size;
}
} else if (has_start) {
if (start >= a_first && start <= last) {
size = ALIGNDOWN(last - start + 1, alignment);
grade = start - a_first;
}
} else {
if (grade == ~0ULL || len > size) {
start = a_first;
size = len;
grade = 0;
}
}
}
if (grade == ~0ULL) {
geom_deletetree(&mesh);
return (ENOSPC);
}
start -= offset; /* Return back to real offset */
done:
snprintf(ssize, sizeof(ssize), "%jd", (intmax_t)size);
gctl_change_param(req, "size", -1, ssize);
snprintf(sstart, sizeof(sstart), "%jd", (intmax_t)start);
gctl_change_param(req, "start", -1, sstart);
geom_deletetree(&mesh);
return (0);
}
static void
gpart_show_geom(struct ggeom *gp, const char *element, int show_providers)
{
struct gprovider *pp;
const char *s, *scheme;
off_t first, last, sector, end;
off_t length, secsz;
int idx, wblocks, wname, wmax;
scheme = find_geomcfg(gp, "scheme");
s = find_geomcfg(gp, "first");
first = (off_t)strtoimax(s, NULL, 0);
s = find_geomcfg(gp, "last");
last = (off_t)strtoimax(s, NULL, 0);
wblocks = strlen(s);
s = find_geomcfg(gp, "state");
if (s != NULL && *s != 'C')
s = NULL;
wmax = strlen(gp->lg_name);
if (show_providers) {
LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
wname = strlen(pp->lg_name);
if (wname > wmax)
wmax = wname;
}
}
wname = wmax;
pp = LIST_FIRST(&gp->lg_consumer)->lg_provider;
secsz = pp->lg_sectorsize;
printf("=>%*jd %*jd %*s %s (%s)%s\n",
wblocks, (intmax_t)first, wblocks, (intmax_t)(last - first + 1),
wname, gp->lg_name,
scheme, fmtsize(pp->lg_mediasize),
s ? " [CORRUPT]": "");
while ((pp = find_provider(gp, first)) != NULL) {
s = find_provcfg(pp, "start");
sector = (off_t)strtoimax(s, NULL, 0);
s = find_provcfg(pp, "end");
end = (off_t)strtoimax(s, NULL, 0);
length = end - sector + 1;
s = find_provcfg(pp, "index");
idx = atoi(s);
if (first < sector) {
printf(" %*jd %*jd %*s - free - (%s)\n",
wblocks, (intmax_t)first, wblocks,
(intmax_t)(sector - first), wname, "",
fmtsize((sector - first) * secsz));
}
if (show_providers) {
printf(" %*jd %*jd %*s %s %s (%s)\n",
wblocks, (intmax_t)sector, wblocks,
(intmax_t)length, wname, pp->lg_name,
find_provcfg(pp, element), fmtattrib(pp),
fmtsize(pp->lg_mediasize));
} else
printf(" %*jd %*jd %*d %s %s (%s)\n",
wblocks, (intmax_t)sector, wblocks,
(intmax_t)length, wname, idx,
find_provcfg(pp, element), fmtattrib(pp),
fmtsize(pp->lg_mediasize));
first = end + 1;
}
if (first <= last) {
length = last - first + 1;
printf(" %*jd %*jd %*s - free - (%s)\n",
wblocks, (intmax_t)first, wblocks, (intmax_t)length,
wname, "",
fmtsize(length * secsz));
}
printf("\n");
}
static int
gpart_show_hasopt(struct gctl_req *req, const char *opt, const char *elt)
{
if (!gctl_get_int(req, "%s", opt))
return (0);
if (elt != NULL)
errx(EXIT_FAILURE, "-l and -r are mutually exclusive");
return (1);
}
static void
gpart_show(struct gctl_req *req, unsigned int fl __unused)
{
struct gmesh mesh;
struct gclass *classp;
struct ggeom *gp;
const char *element, *name;
int error, i, nargs, show_providers;
element = NULL;
if (gpart_show_hasopt(req, "show_label", element))
element = "label";
if (gpart_show_hasopt(req, "show_rawtype", element))
element = "rawtype";
if (element == NULL)
element = "type";
name = gctl_get_ascii(req, "class");
if (name == NULL)
abort();
error = geom_gettree(&mesh);
if (error != 0)
errc(EXIT_FAILURE, error, "Cannot get GEOM tree");
classp = find_class(&mesh, name);
if (classp == NULL) {
geom_deletetree(&mesh);
errx(EXIT_FAILURE, "Class %s not found.", name);
}
show_providers = gctl_get_int(req, "show_providers");
nargs = gctl_get_int(req, "nargs");
if (nargs > 0) {
for (i = 0; i < nargs; i++) {
name = gctl_get_ascii(req, "arg%d", i);
gp = find_geom(classp, name);
if (gp != NULL)
gpart_show_geom(gp, element, show_providers);
else
errx(EXIT_FAILURE, "No such geom: %s.", name);
}
} else {
LIST_FOREACH(gp, &classp->lg_geom, lg_geom) {
gpart_show_geom(gp, element, show_providers);
}
}
geom_deletetree(&mesh);
}
static void
gpart_backup(struct gctl_req *req, unsigned int fl __unused)
{
struct gmesh mesh;
struct gclass *classp;
struct gprovider *pp;
struct ggeom *gp;
const char *s, *scheme;
off_t sector, end;
off_t length;
int error, i, windex, wblocks, wtype;
if (gctl_get_int(req, "nargs") != 1)
errx(EXIT_FAILURE, "Invalid number of arguments.");
error = geom_gettree(&mesh);
if (error != 0)
errc(EXIT_FAILURE, error, "Cannot get GEOM tree");
s = gctl_get_ascii(req, "class");
if (s == NULL)
abort();
classp = find_class(&mesh, s);
if (classp == NULL) {
geom_deletetree(&mesh);
errx(EXIT_FAILURE, "Class %s not found.", s);
}
s = gctl_get_ascii(req, "arg0");
if (s == NULL)
abort();
gp = find_geom(classp, s);
if (gp == NULL)
errx(EXIT_FAILURE, "No such geom: %s.", s);
scheme = find_geomcfg(gp, "scheme");
if (scheme == NULL)
abort();
pp = LIST_FIRST(&gp->lg_consumer)->lg_provider;
s = find_geomcfg(gp, "last");
wblocks = strlen(s);
wtype = 0;
LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
s = find_provcfg(pp, "type");
i = strlen(s);
if (i > wtype)
wtype = i;
}
s = find_geomcfg(gp, "entries");
windex = strlen(s);
printf("%s %s\n", scheme, s);
LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
s = find_provcfg(pp, "start");
sector = (off_t)strtoimax(s, NULL, 0);
s = find_provcfg(pp, "end");
end = (off_t)strtoimax(s, NULL, 0);
length = end - sector + 1;
s = find_provcfg(pp, "label");
printf("%-*s %*s %*jd %*jd %s %s\n",
windex, find_provcfg(pp, "index"),
wtype, find_provcfg(pp, "type"),
wblocks, (intmax_t)sector,
wblocks, (intmax_t)length,
(s != NULL) ? s: "", fmtattrib(pp));
}
geom_deletetree(&mesh);
}
static int
skip_line(const char *p)
{
while (*p != '\0') {
if (*p == '#')
return (1);
if (isspace(*p) == 0)
return (0);
p++;
}
return (1);
}
static void
gpart_sighndl(int sig __unused)
{
undo_restore = 1;
}
static void
gpart_restore(struct gctl_req *req, unsigned int fl __unused)
{
struct gmesh mesh;
struct gclass *classp;
struct gctl_req *r;
struct ggeom *gp;
struct sigaction si_sa;
const char *s, *flags, *errstr, *label;
char **ap, *argv[6], line[BUFSIZ], *pline;
int error, forced, i, l, nargs, created, rl;
intmax_t n;
nargs = gctl_get_int(req, "nargs");
if (nargs < 1)
errx(EXIT_FAILURE, "Invalid number of arguments.");
forced = gctl_get_int(req, "force");
flags = gctl_get_ascii(req, "flags");
rl = gctl_get_int(req, "restore_labels");
s = gctl_get_ascii(req, "class");
if (s == NULL)
abort();
error = geom_gettree(&mesh);
if (error != 0)
errc(EXIT_FAILURE, error, "Cannot get GEOM tree");
classp = find_class(&mesh, s);
if (classp == NULL) {
geom_deletetree(&mesh);
errx(EXIT_FAILURE, "Class %s not found.", s);
}
sigemptyset(&si_sa.sa_mask);
si_sa.sa_flags = 0;
si_sa.sa_handler = gpart_sighndl;
if (sigaction(SIGINT, &si_sa, 0) == -1)
err(EXIT_FAILURE, "sigaction SIGINT");
if (forced) {
/* destroy existent partition table before restore */
for (i = 0; i < nargs; i++) {
s = gctl_get_ascii(req, "arg%d", i);
gp = find_geom(classp, s);
if (gp != NULL) {
r = gctl_get_handle();
gctl_ro_param(r, "class", -1,
classp->lg_name);
gctl_ro_param(r, "verb", -1, "destroy");
gctl_ro_param(r, "flags", -1, "restore");
gctl_ro_param(r, "force", sizeof(forced),
&forced);
gctl_ro_param(r, "arg0", -1, s);
errstr = gctl_issue(r);
if (errstr != NULL && errstr[0] != '\0') {
gpart_print_error(errstr);
gctl_free(r);
goto backout;
}
gctl_free(r);
}
}
}
created = 0;
while (undo_restore == 0 &&
fgets(line, sizeof(line) - 1, stdin) != NULL) {
/* Format of backup entries:
* <scheme name> <number of entries>
* <index> <type> <start> <size> [label] ['['attrib[,attrib]']']
*/
pline = (char *)line;
pline[strlen(line) - 1] = 0;
if (skip_line(pline))
continue;
for (ap = argv;
(*ap = strsep(&pline, " \t")) != NULL;)
if (**ap != '\0' && ++ap >= &argv[6])
break;
l = ap - &argv[0];
label = pline = NULL;
if (l == 1 || l == 2) { /* create table */
if (created)
errx(EXIT_FAILURE, "Incorrect backup format.");
if (l == 2)
n = strtoimax(argv[1], NULL, 0);
for (i = 0; i < nargs; i++) {
s = gctl_get_ascii(req, "arg%d", i);
r = gctl_get_handle();
gctl_ro_param(r, "class", -1,
classp->lg_name);
gctl_ro_param(r, "verb", -1, "create");
gctl_ro_param(r, "scheme", -1, argv[0]);
if (l == 2)
gctl_ro_param(r, "entries",
sizeof(n), &n);
gctl_ro_param(r, "flags", -1, "restore");
gctl_ro_param(r, "arg0", -1, s);
errstr = gctl_issue(r);
if (errstr != NULL && errstr[0] != '\0') {
gpart_print_error(errstr);
gctl_free(r);
goto backout;
}
gctl_free(r);
}
created = 1;
continue;
} else if (l < 4 || created == 0)
errx(EXIT_FAILURE, "Incorrect backup format.");
else if (l == 5) {
if (strchr(argv[4], '[') == NULL)
label = argv[4];
else
pline = argv[4];
} else if (l == 6) {
label = argv[4];
pline = argv[5];
}
/* Add partitions to each table */
for (i = 0; i < nargs; i++) {
s = gctl_get_ascii(req, "arg%d", i);
r = gctl_get_handle();
n = strtoimax(argv[0], NULL, 0);
gctl_ro_param(r, "class", -1, classp->lg_name);
gctl_ro_param(r, "verb", -1, "add");
gctl_ro_param(r, "flags", -1, "restore");
gctl_ro_param(r, GPART_PARAM_INDEX, sizeof(n), &n);
gctl_ro_param(r, "type", -1, argv[1]);
gctl_ro_param(r, "start", -1, argv[2]);
gctl_ro_param(r, "size", -1, argv[3]);
if (rl != 0 && label != NULL)
gctl_ro_param(r, "label", -1, argv[4]);
gctl_ro_param(r, "alignment", -1, GPART_AUTOFILL);
gctl_ro_param(r, "arg0", -1, s);
error = gpart_autofill(r);
if (error != 0)
errc(EXIT_FAILURE, error, "autofill");
errstr = gctl_issue(r);
if (errstr != NULL && errstr[0] != '\0') {
gpart_print_error(errstr);
gctl_free(r);
goto backout;
}
gctl_free(r);
}
if (pline == NULL || *pline != '[')
continue;
/* set attributes */
pline++;
for (ap = argv;
(*ap = strsep(&pline, ",]")) != NULL;)
if (**ap != '\0' && ++ap >= &argv[6])
break;
for (i = 0; i < nargs; i++) {
l = ap - &argv[0];
s = gctl_get_ascii(req, "arg%d", i);
while (l > 0) {
r = gctl_get_handle();
gctl_ro_param(r, "class", -1, classp->lg_name);
gctl_ro_param(r, "verb", -1, "set");
gctl_ro_param(r, "flags", -1, "restore");
gctl_ro_param(r, GPART_PARAM_INDEX,
sizeof(n), &n);
gctl_ro_param(r, "attrib", -1, argv[--l]);
gctl_ro_param(r, "arg0", -1, s);
errstr = gctl_issue(r);
if (errstr != NULL && errstr[0] != '\0') {
gpart_print_error(errstr);
gctl_free(r);
goto backout;
}
gctl_free(r);
}
}
}
if (undo_restore)
goto backout;
/* commit changes if needed */
if (strchr(flags, 'C') != NULL) {
for (i = 0; i < nargs; i++) {
s = gctl_get_ascii(req, "arg%d", i);
r = gctl_get_handle();
gctl_ro_param(r, "class", -1, classp->lg_name);
gctl_ro_param(r, "verb", -1, "commit");
gctl_ro_param(r, "arg0", -1, s);
errstr = gctl_issue(r);
if (errstr != NULL && errstr[0] != '\0') {
gpart_print_error(errstr);
gctl_free(r);
goto backout;
}
gctl_free(r);
}
}
gctl_free(req);
geom_deletetree(&mesh);
exit(EXIT_SUCCESS);
backout:
for (i = 0; i < nargs; i++) {
s = gctl_get_ascii(req, "arg%d", i);
r = gctl_get_handle();
gctl_ro_param(r, "class", -1, classp->lg_name);
gctl_ro_param(r, "verb", -1, "undo");
gctl_ro_param(r, "arg0", -1, s);
gctl_issue(r);
gctl_free(r);
}
gctl_free(req);
geom_deletetree(&mesh);
exit(EXIT_FAILURE);
}
static void *
gpart_bootfile_read(const char *bootfile, ssize_t *size)
{
struct stat sb;
void *code;
int fd;
if (stat(bootfile, &sb) == -1)
err(EXIT_FAILURE, "%s", bootfile);
if (!S_ISREG(sb.st_mode))
errx(EXIT_FAILURE, "%s: not a regular file", bootfile);
if (sb.st_size == 0)
errx(EXIT_FAILURE, "%s: empty file", bootfile);
if (*size > 0 && sb.st_size > *size)
errx(EXIT_FAILURE, "%s: file too big (%zu limit)", bootfile,
*size);
*size = sb.st_size;
fd = open(bootfile, O_RDONLY);
if (fd == -1)
err(EXIT_FAILURE, "%s", bootfile);
code = malloc(*size);
if (code == NULL)
err(EXIT_FAILURE, NULL);
if (read(fd, code, *size) != *size)
err(EXIT_FAILURE, "%s", bootfile);
close(fd);
return (code);
}
static void
gpart_write_partcode(struct ggeom *gp, int idx, void *code, ssize_t size)
{
char dsf[128];
struct gprovider *pp;
const char *s;
char *buf;
off_t bsize;
int fd;
LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
s = find_provcfg(pp, "index");
if (s == NULL)
continue;
if (atoi(s) == idx)
break;
}
if (pp != NULL) {
snprintf(dsf, sizeof(dsf), "/dev/%s", pp->lg_name);
fd = open(dsf, O_WRONLY);
if (fd == -1)
err(EXIT_FAILURE, "%s", dsf);
if (lseek(fd, size, SEEK_SET) != size)
errx(EXIT_FAILURE, "%s: not enough space", dsf);
if (lseek(fd, 0, SEEK_SET) != 0)
err(EXIT_FAILURE, "%s", dsf);
/*
* When writing to a disk device, the write must be
* sector aligned and not write to any partial sectors,
* so round up the buffer size to the next sector and zero it.
*/
bsize = (size + pp->lg_sectorsize - 1) /
pp->lg_sectorsize * pp->lg_sectorsize;
buf = calloc(1, bsize);
if (buf == NULL)
err(EXIT_FAILURE, "%s", dsf);
bcopy(code, buf, size);
if (write(fd, buf, bsize) != bsize)
err(EXIT_FAILURE, "%s", dsf);
free(buf);
close(fd);
} else
errx(EXIT_FAILURE, "invalid partition index");
}
static void
gpart_write_partcode_vtoc8(struct ggeom *gp, int idx, void *code)
{
char dsf[128];
struct gprovider *pp;
const char *s;
int installed, fd;
installed = 0;
LIST_FOREACH(pp, &gp->lg_provider, lg_provider) {
s = find_provcfg(pp, "index");
if (s == NULL)
continue;
if (idx != 0 && atoi(s) != idx)
continue;
snprintf(dsf, sizeof(dsf), "/dev/%s", pp->lg_name);
if (pp->lg_sectorsize != sizeof(struct vtoc8))
errx(EXIT_FAILURE, "%s: unexpected sector "
"size (%d)\n", dsf, pp->lg_sectorsize);
fd = open(dsf, O_WRONLY);
if (fd == -1)
err(EXIT_FAILURE, "%s", dsf);
if (lseek(fd, VTOC_BOOTSIZE, SEEK_SET) != VTOC_BOOTSIZE)
continue;
/*
* We ignore the first VTOC_BOOTSIZE bytes of boot code in
* order to avoid overwriting the label.
*/
if (lseek(fd, sizeof(struct vtoc8), SEEK_SET) !=
sizeof(struct vtoc8))
err(EXIT_FAILURE, "%s", dsf);
if (write(fd, (caddr_t)code + sizeof(struct vtoc8),
VTOC_BOOTSIZE - sizeof(struct vtoc8)) != VTOC_BOOTSIZE -
sizeof(struct vtoc8))
err(EXIT_FAILURE, "%s", dsf);
installed++;
close(fd);
if (idx != 0 && atoi(s) == idx)
break;
}
if (installed == 0)
errx(EXIT_FAILURE, "%s: no partitions", gp->lg_name);
}
static void
gpart_bootcode(struct gctl_req *req, unsigned int fl)
{
struct gmesh mesh;
struct gclass *classp;
struct ggeom *gp;
const char *s;
void *bootcode, *partcode;
size_t bootsize, partsize;
int error, idx, vtoc8;
if (gctl_has_param(req, GPART_PARAM_BOOTCODE)) {
s = gctl_get_ascii(req, GPART_PARAM_BOOTCODE);
bootsize = 800 * 1024; /* Arbitrary limit. */
bootcode = gpart_bootfile_read(s, &bootsize);
error = gctl_change_param(req, GPART_PARAM_BOOTCODE, bootsize,
bootcode);
if (error)
errc(EXIT_FAILURE, error, "internal error");
} else {
bootcode = NULL;
bootsize = 0;
}
s = gctl_get_ascii(req, "class");
if (s == NULL)
abort();
error = geom_gettree(&mesh);
if (error != 0)
errc(EXIT_FAILURE, error, "Cannot get GEOM tree");
classp = find_class(&mesh, s);
if (classp == NULL) {
geom_deletetree(&mesh);
errx(EXIT_FAILURE, "Class %s not found.", s);
}
if (gctl_get_int(req, "nargs") != 1)
errx(EXIT_FAILURE, "Invalid number of arguments.");
s = gctl_get_ascii(req, "arg0");
if (s == NULL)
abort();
gp = find_geom(classp, s);
if (gp == NULL)
errx(EXIT_FAILURE, "No such geom: %s.", s);
s = find_geomcfg(gp, "scheme");
vtoc8 = 0;
if (strcmp(s, "VTOC8") == 0)
vtoc8 = 1;
if (gctl_has_param(req, GPART_PARAM_PARTCODE)) {
s = gctl_get_ascii(req, GPART_PARAM_PARTCODE);
partsize = vtoc8 != 0 ? VTOC_BOOTSIZE : bootsize * 1024;
partcode = gpart_bootfile_read(s, &partsize);
error = gctl_delete_param(req, GPART_PARAM_PARTCODE);
if (error)
errc(EXIT_FAILURE, error, "internal error");
} else {
partcode = NULL;
partsize = 0;
}
if (gctl_has_param(req, GPART_PARAM_INDEX)) {
if (partcode == NULL)
errx(EXIT_FAILURE, "-i is only valid with -p");
idx = (int)gctl_get_intmax(req, GPART_PARAM_INDEX);
if (idx < 1)
errx(EXIT_FAILURE, "invalid partition index");
error = gctl_delete_param(req, GPART_PARAM_INDEX);
if (error)
errc(EXIT_FAILURE, error, "internal error");
} else
idx = 0;
if (partcode != NULL) {
if (vtoc8 == 0) {
if (idx == 0)
errx(EXIT_FAILURE, "missing -i option");
gpart_write_partcode(gp, idx, partcode, partsize);
} else {
if (partsize != VTOC_BOOTSIZE)
errx(EXIT_FAILURE, "invalid bootcode");
gpart_write_partcode_vtoc8(gp, idx, partcode);
}
} else
if (bootcode == NULL)
errx(EXIT_FAILURE, "no -b nor -p");
if (bootcode != NULL)
gpart_issue(req, fl);
geom_deletetree(&mesh);
}
static void
gpart_print_error(const char *errstr)
{
char *errmsg;
int error;
error = strtol(errstr, &errmsg, 0);
if (errmsg != errstr) {
while (errmsg[0] == ' ')
errmsg++;
if (errmsg[0] != '\0')
warnc(error, "%s", errmsg);
else
warnc(error, NULL);
} else
warnx("%s", errmsg);
}
static void
gpart_issue(struct gctl_req *req, unsigned int fl __unused)
{
char buf[4096];
const char *errstr;
int error, status;
if (gctl_get_int(req, "nargs") != 1)
errx(EXIT_FAILURE, "Invalid number of arguments.");
(void)gctl_delete_param(req, "nargs");
/* autofill parameters (if applicable). */
error = gpart_autofill(req);
if (error) {
warnc(error, "autofill");
status = EXIT_FAILURE;
goto done;
}
bzero(buf, sizeof(buf));
gctl_rw_param(req, "output", sizeof(buf), buf);
errstr = gctl_issue(req);
if (errstr == NULL || errstr[0] == '\0') {
if (buf[0] != '\0')
printf("%s", buf);
status = EXIT_SUCCESS;
goto done;
}
gpart_print_error(errstr);
status = EXIT_FAILURE;
done:
gctl_free(req);
exit(status);
}