434 lines
10 KiB
C
434 lines
10 KiB
C
/* $NetBSD: vnconfig.c,v 1.44 2016/04/10 09:04:09 martin Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1997 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Jason R. Thorpe.
|
|
*
|
|
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1993 University of Utah.
|
|
* Copyright (c) 1990, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* the Systems Programming Group of the University of Utah Computer
|
|
* Science Department.
|
|
*
|
|
* 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.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
*
|
|
* from: Utah $Hdr: vnconfig.c 1.1 93/12/15$
|
|
*
|
|
* @(#)vnconfig.c 8.1 (Berkeley) 12/15/93
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/buf.h>
|
|
#include <sys/disklabel.h>
|
|
#include <sys/disk.h>
|
|
|
|
#include <dev/vndvar.h>
|
|
|
|
#include <disktab.h>
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stddef.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <util.h>
|
|
#include <paths.h>
|
|
#include <limits.h>
|
|
|
|
#define VND_CONFIG 1
|
|
#define VND_UNCONFIG 2
|
|
#define VND_GET 3
|
|
|
|
/* with -l we always print at least this many entries */
|
|
#define DUMMY_FREE 4
|
|
|
|
static int verbose = 0;
|
|
static int readonly = 0;
|
|
static int force = 0;
|
|
static int compressed = 0;
|
|
static int minimum = DUMMY_FREE;
|
|
static char *tabname;
|
|
|
|
static int show(int, int, const char * const);
|
|
static int config(char *, char *, char *, int);
|
|
static int getgeom(struct vndgeom *, char *);
|
|
__dead static void usage(void);
|
|
static void show_unused(int);
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int ch, rv, action = VND_CONFIG;
|
|
char *end;
|
|
unsigned long cnt;
|
|
|
|
while ((ch = getopt(argc, argv, "Fcf:lm:rt:uvz")) != -1) {
|
|
switch (ch) {
|
|
case 'F':
|
|
force = 1;
|
|
break;
|
|
case 'c':
|
|
action = VND_CONFIG;
|
|
break;
|
|
case 'f':
|
|
if (setdisktab(optarg) == -1)
|
|
usage();
|
|
break;
|
|
case 'l':
|
|
action = VND_GET;
|
|
break;
|
|
case 'm':
|
|
cnt = strtoul(optarg, &end, 10);
|
|
if (cnt >= INT_MAX || end == optarg || *end != '\0')
|
|
usage();
|
|
minimum = (int)cnt;
|
|
break;
|
|
case 'r':
|
|
readonly = 1;
|
|
break;
|
|
case 't':
|
|
tabname = optarg;
|
|
break;
|
|
case 'u':
|
|
action = VND_UNCONFIG;
|
|
break;
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
case 'z':
|
|
compressed = 1;
|
|
readonly = 1;
|
|
break;
|
|
default:
|
|
case '?':
|
|
usage();
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (action == VND_CONFIG) {
|
|
if ((argc < 2 || argc > 3) ||
|
|
(argc == 3 && tabname != NULL))
|
|
usage();
|
|
rv = config(argv[0], argv[1], (argc == 3) ? argv[2] : NULL,
|
|
action);
|
|
} else if (action == VND_UNCONFIG) {
|
|
if (argc != 1 || tabname != NULL)
|
|
usage();
|
|
rv = config(argv[0], NULL, NULL, action);
|
|
} else { /* VND_GET */
|
|
int n, vdisk;
|
|
const char *vn;
|
|
char path[64];
|
|
|
|
if (argc == 0) {
|
|
vn = "vnd0";
|
|
|
|
vdisk = opendisk(vn, O_RDONLY, path, sizeof(path), 0);
|
|
if (vdisk == -1) {
|
|
if (minimum == 0)
|
|
return 1;
|
|
err(1, "open: %s", vn);
|
|
}
|
|
|
|
for (n = 0; show(vdisk, n, 0); n++)
|
|
continue;
|
|
while (n < minimum)
|
|
show_unused(n++);
|
|
close(vdisk);
|
|
return 0;
|
|
}
|
|
|
|
rv = 0;
|
|
while (--argc >= 0) {
|
|
vn = *argv++;
|
|
|
|
vdisk = opendisk(vn, O_RDONLY, path, sizeof(path), 0);
|
|
if (vdisk == -1) {
|
|
warn("open: %s", vn);
|
|
rv = 1;
|
|
continue;
|
|
}
|
|
|
|
if (!show(vdisk, -1, vn))
|
|
rv = 1;
|
|
close(vdisk);
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
static void
|
|
show_unused(int n)
|
|
{
|
|
if (minimum == 0)
|
|
return;
|
|
|
|
printf("vnd%d: not in use\n", n);
|
|
}
|
|
|
|
static int
|
|
show(int v, int n, const char * const name)
|
|
{
|
|
struct vnd_user vnu;
|
|
char *dev;
|
|
struct statvfs *mnt;
|
|
int i, nmount;
|
|
|
|
vnu.vnu_unit = n;
|
|
if (ioctl(v, VNDIOCGET, &vnu) == -1) {
|
|
if (errno != ENXIO) {
|
|
if (n != -1)
|
|
err(1, "VNDIOCGET");
|
|
warn("%s: VNDIOCGET", name);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if (vnu.vnu_ino == 0) {
|
|
show_unused(vnu.vnu_unit);
|
|
return -1;
|
|
}
|
|
|
|
printf("vnd%d: ", vnu.vnu_unit);
|
|
|
|
dev = devname(vnu.vnu_dev, S_IFBLK);
|
|
if (dev != NULL)
|
|
nmount = getmntinfo(&mnt, MNT_NOWAIT);
|
|
else {
|
|
mnt = NULL;
|
|
nmount = 0;
|
|
}
|
|
|
|
if (mnt != NULL) {
|
|
for (i = 0; i < nmount; i++) {
|
|
if (strncmp(mnt[i].f_mntfromname, "/dev/", 5) == 0 &&
|
|
strcmp(mnt[i].f_mntfromname + 5, dev) == 0)
|
|
break;
|
|
}
|
|
if (i < nmount)
|
|
printf("%s (%s) ", mnt[i].f_mntonname,
|
|
mnt[i].f_mntfromname);
|
|
else
|
|
printf("%s ", dev);
|
|
}
|
|
else if (dev != NULL)
|
|
printf("%s ", dev);
|
|
else
|
|
printf("dev %llu,%llu ",
|
|
(unsigned long long)major(vnu.vnu_dev),
|
|
(unsigned long long)minor(vnu.vnu_dev));
|
|
|
|
printf("inode %llu\n", (unsigned long long)vnu.vnu_ino);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
config(char *dev, char *file, char *geom, int action)
|
|
{
|
|
struct vnd_ioctl vndio;
|
|
struct disklabel *lp;
|
|
char rdev[MAXPATHLEN + 1];
|
|
int fd, rv;
|
|
|
|
fd = opendisk(dev, O_RDWR, rdev, sizeof(rdev), 0);
|
|
if (fd < 0) {
|
|
warn("%s: opendisk", rdev);
|
|
return (1);
|
|
}
|
|
|
|
memset(&vndio, 0, sizeof(vndio));
|
|
#ifdef __GNUC__
|
|
rv = 0; /* XXX */
|
|
#endif
|
|
|
|
vndio.vnd_file = file;
|
|
if (geom != NULL) {
|
|
rv = getgeom(&vndio.vnd_geom, geom);
|
|
if (rv != 0)
|
|
errx(1, "invalid geometry: %s", geom);
|
|
vndio.vnd_flags = VNDIOF_HASGEOM;
|
|
} else if (tabname != NULL) {
|
|
lp = getdiskbyname(tabname);
|
|
if (lp == NULL)
|
|
errx(1, "unknown disk type: %s", tabname);
|
|
vndio.vnd_geom.vng_secsize = lp->d_secsize;
|
|
vndio.vnd_geom.vng_nsectors = lp->d_nsectors;
|
|
vndio.vnd_geom.vng_ntracks = lp->d_ntracks;
|
|
vndio.vnd_geom.vng_ncylinders = lp->d_ncylinders;
|
|
vndio.vnd_flags = VNDIOF_HASGEOM;
|
|
}
|
|
|
|
if (readonly)
|
|
vndio.vnd_flags |= VNDIOF_READONLY;
|
|
|
|
if (compressed)
|
|
vndio.vnd_flags |= VNF_COMP;
|
|
|
|
/*
|
|
* Clear (un-configure) the device
|
|
*/
|
|
if (action == VND_UNCONFIG) {
|
|
if (force)
|
|
vndio.vnd_flags |= VNDIOF_FORCE;
|
|
rv = ioctl(fd, VNDIOCCLR, &vndio);
|
|
#ifdef VNDIOOCCLR
|
|
if (rv && errno == ENOTTY)
|
|
rv = ioctl(fd, VNDIOOCCLR, &vndio);
|
|
#endif
|
|
if (rv)
|
|
warn("%s: VNDIOCCLR", rdev);
|
|
else if (verbose)
|
|
printf("%s: cleared\n", rdev);
|
|
}
|
|
/*
|
|
* Configure the device
|
|
*/
|
|
if (action == VND_CONFIG) {
|
|
int ffd;
|
|
|
|
ffd = open(file, readonly ? O_RDONLY : O_RDWR);
|
|
if (ffd < 0) {
|
|
warn("%s", file);
|
|
rv = -1;
|
|
} else {
|
|
(void) close(ffd);
|
|
|
|
rv = ioctl(fd, VNDIOCSET, &vndio);
|
|
#ifdef VNDIOOCSET
|
|
if (rv && errno == ENOTTY) {
|
|
rv = ioctl(fd, VNDIOOCSET, &vndio);
|
|
vndio.vnd_size = vndio.vnd_osize;
|
|
}
|
|
#endif
|
|
if (rv)
|
|
warn("%s: VNDIOCSET", rdev);
|
|
else if (verbose) {
|
|
printf("%s: %" PRIu64 " bytes on %s", rdev,
|
|
vndio.vnd_size, file);
|
|
if (vndio.vnd_flags & VNDIOF_HASGEOM)
|
|
printf(" using geometry %d/%d/%d/%d",
|
|
vndio.vnd_geom.vng_secsize,
|
|
vndio.vnd_geom.vng_nsectors,
|
|
vndio.vnd_geom.vng_ntracks,
|
|
vndio.vnd_geom.vng_ncylinders);
|
|
printf("\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
(void) close(fd);
|
|
fflush(stdout);
|
|
return (rv < 0);
|
|
}
|
|
|
|
static int
|
|
getgeom(struct vndgeom *vng, char *cp)
|
|
{
|
|
char *secsize, *nsectors, *ntracks, *ncylinders;
|
|
|
|
#define GETARG(arg) \
|
|
do { \
|
|
if (cp == NULL || *cp == '\0') \
|
|
return (1); \
|
|
arg = strsep(&cp, "/"); \
|
|
if (arg == NULL) \
|
|
return (1); \
|
|
} while (0)
|
|
|
|
GETARG(secsize);
|
|
GETARG(nsectors);
|
|
GETARG(ntracks);
|
|
GETARG(ncylinders);
|
|
|
|
#undef GETARG
|
|
|
|
/* Too many? */
|
|
if (cp != NULL)
|
|
return (1);
|
|
|
|
#define CVTARG(str, num) \
|
|
do { \
|
|
num = strtol(str, &cp, 10); \
|
|
if (*cp != '\0') \
|
|
return (1); \
|
|
} while (0)
|
|
|
|
CVTARG(secsize, vng->vng_secsize);
|
|
CVTARG(nsectors, vng->vng_nsectors);
|
|
CVTARG(ntracks, vng->vng_ntracks);
|
|
CVTARG(ncylinders, vng->vng_ncylinders);
|
|
|
|
#undef CVTARG
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
|
|
(void)fprintf(stderr, "%s%s",
|
|
"usage: vnconfig [-crvz] [-f dsktab] [-t type] vnode_disk"
|
|
" reg-file [geomspec]\n",
|
|
" vnconfig -u [-Fv] vnode_disk\n"
|
|
" vnconfig -l [-m num | vnode_disk...]\n");
|
|
exit(1);
|
|
}
|