minus the vendor Makefiles Provide directions for how to bootstrap the vendor sources in FREEBSD-upgrade MFC after 2 weeks Discussed with: rpaulo Sponsored by: EMC / Isilon Storage Division
219 lines
5.6 KiB
C
219 lines
5.6 KiB
C
/* $NetBSD: getmntinfo.c,v 1.1 2012/03/17 16:33:11 jruoho Exp $ */
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/*
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* Copyright (c) 2007 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/ucred.h>
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#include <sys/mount.h>
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#include <err.h>
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#include <stdlib.h>
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#include <string.h>
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#define KB * 1024
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#define MB * 1024 KB
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#define GB * 1024 MB
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static struct statvfs *getnewstatvfs(void);
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static void other_variants(const struct statvfs *, const int *, int,
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const int *, int);
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static void setup_filer(void);
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static void setup_ld0g(void);
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static void setup_strpct(void);
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static struct statvfs *allstatvfs;
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static int sftotal, sfused;
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struct statvfs *
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getnewstatvfs(void)
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{
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if (sftotal == sfused) {
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sftotal = sftotal ? sftotal * 2 : 1;
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allstatvfs = realloc(allstatvfs,
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sftotal * sizeof(struct statvfs));
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if (allstatvfs == NULL)
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err(EXIT_FAILURE, "realloc");
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}
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return (&allstatvfs[sfused++]);
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}
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void
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other_variants(const struct statvfs *tmpl, const int *minfree, int minfreecnt,
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const int *consumed, int consumedcnt)
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{
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int64_t total, used;
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struct statvfs *sf;
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int i, j;
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for (i = 0; i < minfreecnt; i++)
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for (j = 0; j < consumedcnt; j++) {
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sf = getnewstatvfs();
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*sf = *tmpl;
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total = (int64_t)(u_long)sf->f_blocks * sf->f_bsize;
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used = total * consumed[j] / 100;
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sf->f_bfree = (total - used) / sf->f_bsize;
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sf->f_bavail = (total * (100 - minfree[i]) / 100 -
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used) / (int)sf->f_bsize;
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sf->f_bresvd = sf->f_bfree - sf->f_bavail;
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}
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}
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/*
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* Parameter taken from:
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* http://mail-index.NetBSD.org/tech-userlevel/2004/03/24/0001.html
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*/
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void
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setup_filer(void)
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{
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static const struct statvfs tmpl = {
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#define BSIZE 512
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#define TOTAL 1147ULL GB
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#define USED 132ULL MB
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.f_bsize = BSIZE,
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.f_frsize = BSIZE,
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.f_blocks = TOTAL / BSIZE,
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.f_bfree = (TOTAL - USED) / BSIZE,
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.f_bavail = (TOTAL - USED) / BSIZE,
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.f_bresvd = 0,
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.f_mntfromname = "filer:/",
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.f_mntonname = "/filer",
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#undef USED
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#undef TOTAL
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#undef BSIZE
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};
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static const int minfree[] = { 0, 5, 10, 15, };
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static const int consumed[] = { 0, 20, 60, 95, 100 };
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*getnewstatvfs() = tmpl;
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other_variants(&tmpl, minfree, sizeof(minfree) / sizeof(minfree[0]),
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consumed, sizeof(consumed) / sizeof(consumed[0]));
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}
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/*
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* Parameter taken from:
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* http://mail-index.NetBSD.org/current-users/2004/03/01/0038.html
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*/
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void
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setup_ld0g(void)
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{
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static const struct statvfs tmpl = {
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#define BSIZE 4096 /* Guess */
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#define TOTAL 1308726116ULL KB
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#define USED 17901268ULL KB
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#define AVAIL 1225388540ULL KB
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.f_bsize = BSIZE,
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.f_frsize = BSIZE,
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.f_blocks = TOTAL / BSIZE,
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.f_bfree = (TOTAL - USED) / BSIZE,
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.f_bavail = AVAIL / BSIZE,
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.f_bresvd = (TOTAL - USED) / BSIZE - AVAIL / BSIZE,
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.f_mntfromname = "/dev/ld0g",
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.f_mntonname = "/anon-root",
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#undef AVAIL
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#undef USED
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#undef TOTAL
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#undef BSIZE
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};
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static const int minfree[] = { 0, 5, 10, 15, };
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static const int consumed[] = { 0, 20, 60, 95, 100 };
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*getnewstatvfs() = tmpl;
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other_variants(&tmpl, minfree, sizeof(minfree) / sizeof(minfree[0]),
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consumed, sizeof(consumed) / sizeof(consumed[0]));
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}
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/*
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* Test of strpct() with huge number.
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*/
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void
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setup_strpct(void)
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{
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static const struct statvfs tmpl = {
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#define BSIZE 4096 /* Guess */
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#define TOTAL 0x4ffffffffULL KB
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#define USED (TOTAL / 2)
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#define AVAIL (TOTAL / 2)
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.f_bsize = BSIZE,
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.f_frsize = BSIZE,
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.f_blocks = TOTAL / BSIZE,
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.f_bfree = (TOTAL - USED) / BSIZE,
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.f_bavail = AVAIL / BSIZE,
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.f_bresvd = (TOTAL - USED) / BSIZE - AVAIL / BSIZE,
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.f_mntfromname = "/dev/strpct",
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.f_mntonname = "/strpct",
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#undef AVAIL
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#undef USED
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#undef TOTAL
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#undef BSIZE
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};
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*getnewstatvfs() = tmpl;
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}
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/*
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* Parameter taken from:
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* http://www.netbsd.org/cgi-bin/query-pr-single.pl?number=23600
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*/
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static void
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setup_pr23600(void)
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{
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static const struct statvfs tmpl = {
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#define BSIZE 512
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#define TOTAL 20971376ULL
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#define USED 5719864ULL
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#define AVAIL 15251512ULL
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.f_bsize = BSIZE,
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.f_frsize = BSIZE,
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.f_blocks = TOTAL,
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.f_bfree = TOTAL - USED,
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.f_bavail = AVAIL,
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.f_bresvd = TOTAL - USED - AVAIL,
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.f_mntfromname = "/dev/wd0e",
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.f_mntonname = "/mount/windows/C",
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#undef AVAIL
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#undef USED
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#undef TOTAL
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#undef BSIZE
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};
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*getnewstatvfs() = tmpl;
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}
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int
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getmntinfo(struct statvfs **mntbuf, int flags)
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{
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setup_filer();
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setup_ld0g();
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setup_strpct();
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setup_pr23600();
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*mntbuf = allstatvfs;
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return (sfused);
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}
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