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List all cgd's no matter if they are not contiguously allocated

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This commit is contained in:
christos 2013-06-09 18:37:40 +00:00
parent 9daf003ef2
commit 2882a9c896
1 changed files with 81 additions and 55 deletions
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136
sbin/cgdconfig/cgdconfig.c
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@ -1,4 +1,4 @@
/* $NetBSD: cgdconfig.c,v 1.34 2012/12/05 02:23:20 christos Exp $ */
/* $NetBSD: cgdconfig.c,v 1.35 2013/06/09 18:37:40 christos Exp $ */
/*-
* Copyright (c) 2002, 2003 The NetBSD Foundation, Inc.
@ -33,7 +33,7 @@
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 2002, 2003\
The NetBSD Foundation, Inc. All rights reserved.");
__RCSID("$NetBSD: cgdconfig.c,v 1.34 2012/12/05 02:23:20 christos Exp $");
__RCSID("$NetBSD: cgdconfig.c,v 1.35 2013/06/09 18:37:40 christos Exp $");
#endif
#include <err.h>
@ -45,6 +45,8 @@ __RCSID("$NetBSD: cgdconfig.c,v 1.34 2012/12/05 02:23:20 christos Exp $");
#include <string.h>
#include <unistd.h>
#include <util.h>
#include <paths.h>
#include <dirent.h>
#include <sys/ioctl.h>
#include <sys/disklabel.h>
@ -52,6 +54,7 @@ __RCSID("$NetBSD: cgdconfig.c,v 1.34 2012/12/05 02:23:20 christos Exp $");
#include <sys/param.h>
#include <sys/resource.h>
#include <sys/statvfs.h>
#include <sys/bitops.h>
#include <dev/cgdvar.h>
@ -999,68 +1002,91 @@ iv_method(int mode)
}
}
static void
show(const char *dev) {
char path[64];
struct cgd_user cgu;
int fd;
fd = opendisk(dev, O_RDONLY, path, sizeof(path), 0);
if (fd == -1) {
warn("open: %s", dev);
return;
}
cgu.cgu_unit = -1;
if (prog_ioctl(fd, CGDIOCGET, &cgu) == -1) {
close(fd);
err(1, "CGDIOCGET");
}
printf("%s: ", dev);
if (cgu.cgu_dev == 0) {
printf("not in use");
goto out;
}
dev = devname(cgu.cgu_dev, S_IFBLK);
if (dev != NULL)
printf("%s ", dev);
else
printf("dev %llu,%llu ", (unsigned long long)major(cgu.cgu_dev),
(unsigned long long)minor(cgu.cgu_dev));
if (verbose)
printf("%s ", cgu.cgu_alg);
if (verbose > 1) {
printf("keylen %d ", cgu.cgu_keylen);
printf("blksize %zd ", cgu.cgu_blocksize);
printf("%s ", iv_method(cgu.cgu_mode));
}
out:
putchar('\n');
close(fd);
}
static int
do_list(int argc, char **argv)
{
char path[64], buf[16];
struct cgd_user cgu;
const char *fn;
int fd, n, rv;
if (argc != 0 && argc != 1)
usage();
fn = argc ? argv[0] : "cgd0";
n = 0;
for (;;) {
fd = opendisk(fn, O_RDONLY, path, sizeof(path), 0);
if (fd == -1) {
if (argc)
err(1, "open: %s", fn);
break;
}
cgu.cgu_unit = argc ? -1 : n;
rv = prog_ioctl(fd, CGDIOCGET, &cgu);
if (rv == -1) {
close(fd);
err(1, "CGDIOCGET");
}
printf("%s: ", fn);
if (cgu.cgu_dev == 0)
printf("not in use");
else {
char *dev;
dev = devname(cgu.cgu_dev, S_IFBLK);
if (dev != NULL)
printf("%s ", dev);
else
printf("dev %llu,%llu ",
(unsigned long long)major(cgu.cgu_dev),
(unsigned long long)minor(cgu.cgu_dev));
if (verbose)
printf("%s ", cgu.cgu_alg);
if (verbose > 1) {
printf("keylen %d ", cgu.cgu_keylen);
printf("blksize %zd ", cgu.cgu_blocksize);
printf("%s ", iv_method(cgu.cgu_mode));
}
}
putchar('\n');
close(fd);
if (argc)
break;
n++;
snprintf(buf, sizeof(buf), "cgd%d", n);
fn = buf;
if (argc) {
show(argv[0]);
return 0;
}
DIR *dirp;
struct dirent *dp;
__BITMAP_TYPE(, uint32_t, 65536) bm;
__BITMAP_ZERO(&bm);
if ((dirp = opendir(_PATH_DEV)) == NULL)
err(1, "opendir: %s", _PATH_DEV);
while ((dp = readdir(dirp)) != NULL) {
char *ep;
if (strncmp(dp->d_name, "rcgd", 4) != 0)
continue;
errno = 0;
int n = (int)strtol(dp->d_name + 4, &ep, 0);
if (ep == dp->d_name + 4 || errno != 0) {
warnx("bad name %s", dp->d_name);
continue;
}
*ep = '\0';
if (__BITMAP_ISSET(n, &bm))
continue;
__BITMAP_SET(n, &bm);
show(dp->d_name + 1);
}
closedir(dirp);
return 0;
}