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NetBSD/usr.sbin/pstat/pstat.c

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/* $NetBSD: pstat.c,v 1.27 1996/10/23 22:50:06 cgd Exp $ */
/*-
* Copyright (c) 1980, 1991, 1993
* The Regents of the University of California. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1980, 1991, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
from: static char sccsid[] = "@(#)pstat.c 8.9 (Berkeley) 2/16/94";
#else
static char *rcsid = "$NetBSD: pstat.c,v 1.27 1996/10/23 22:50:06 cgd Exp $";
#endif
#endif /* not lint */
#include <sys/param.h>
#include <sys/time.h>
#include <sys/vnode.h>
#include <sys/map.h>
#include <sys/ucred.h>
#define _KERNEL
#include <sys/file.h>
#include <ufs/ufs/quota.h>
#include <ufs/ufs/inode.h>
#define NFS
#include <sys/mount.h>
#undef NFS
#undef _KERNEL
#include <sys/stat.h>
#include <nfs/nfsproto.h>
#include <nfs/rpcv2.h>
#include <nfs/nfsnode.h>
#include <sys/ioctl.h>
#include <sys/tty.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/sysctl.h>
#include <err.h>
#include <kvm.h>
#include <limits.h>
#include <nlist.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
struct nlist nl[] = {
#define VM_SWAPMAP 0
{ "_swapmap" }, /* list of free swap areas */
#define VM_NSWAPMAP 1
{ "_nswapmap" },/* size of the swap map */
#define VM_SWDEVT 2
{ "_swdevt" }, /* list of swap devices and sizes */
#define VM_NSWAP 3
{ "_nswap" }, /* size of largest swap device */
#define VM_NSWDEV 4
{ "_nswdev" }, /* number of swap devices */
#define VM_DMMAX 5
{ "_dmmax" }, /* maximum size of a swap block */
#define V_MOUNTLIST 6
{ "_mountlist" }, /* address of head of mount list. */
#define V_NUMV 7
{ "_numvnodes" },
#define FNL_NFILE 8
{"_nfiles"},
#define FNL_MAXFILE 9
{"_maxfiles"},
#define TTY_NTTY 10
{"_tty_count"},
#define TTY_TTYLIST 11
{"_ttylist"},
#define NLMANDATORY TTY_TTYLIST /* names up to here are mandatory */
#define VM_NISWAP NLMANDATORY + 1
{ "_niswap" },
#define VM_NISWDEV NLMANDATORY + 2
{ "_niswdev" },
{ "" }
};
int usenumflag;
int totalflag;
int kflag;
char *nlistf = NULL;
char *memf = NULL;
kvm_t *kd;
#define SVAR(var) __STRING(var) /* to force expansion */
#define KGET(idx, var) \
KGET1(idx, &var, sizeof(var), SVAR(var))
#define KGET1(idx, p, s, msg) \
KGET2(nl[idx].n_value, p, s, msg)
#define KGET2(addr, p, s, msg) \
if (kvm_read(kd, (u_long)(addr), p, s) != s) \
warnx("cannot read %s: %s", msg, kvm_geterr(kd))
#define KGETRET(addr, p, s, msg) \
if (kvm_read(kd, (u_long)(addr), p, s) != s) { \
warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \
return (0); \
}
void filemode __P((void));
int getfiles __P((char **, int *));
struct mount *
getmnt __P((struct mount *));
struct e_vnode *
kinfo_vnodes __P((int *));
struct e_vnode *
loadvnodes __P((int *));
void mount_print __P((struct mount *));
void nfs_header __P((void));
int nfs_print __P((struct vnode *));
void swapmode __P((void));
void ttymode __P((void));
void ttyprt __P((struct tty *));
void ufs_header __P((void));
int ufs_print __P((struct vnode *));
void usage __P((void));
void vnode_header __P((void));
void vnode_print __P((struct vnode *, struct vnode *));
void vnodemode __P((void));
int
main(argc, argv)
int argc;
char *argv[];
{
extern char *optarg;
extern int optind;
int ch, i, quit, ret;
int fileflag, swapflag, ttyflag, vnodeflag;
char buf[_POSIX2_LINE_MAX];
fileflag = swapflag = ttyflag = vnodeflag = 0;
while ((ch = getopt(argc, argv, "TM:N:fiknstv")) != -1)
switch (ch) {
case 'f':
fileflag = 1;
break;
case 'M':
memf = optarg;
break;
case 'N':
nlistf = optarg;
break;
case 'n':
usenumflag = 1;
break;
case 's':
swapflag = 1;
break;
case 'T':
totalflag = 1;
break;
case 't':
ttyflag = 1;
break;
case 'k':
kflag = 1;
break;
case 'v':
case 'i': /* Backward compatibility. */
vnodeflag = 1;
break;
default:
usage();
}
argc -= optind;
argv += optind;
/*
* Discard setgid privileges if not the running kernel so that bad
* guys can't print interesting stuff from kernel memory.
*/
if (nlistf != NULL || memf != NULL)
(void)setgid(getgid());
if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0)
errx(1, "kvm_openfiles: %s", buf);
if ((ret = kvm_nlist(kd, nl)) != 0) {
if (ret == -1)
errx(1, "kvm_nlist: %s", kvm_geterr(kd));
for (i = quit = 0; i <= NLMANDATORY; i++)
if (!nl[i].n_value) {
quit = 1;
warnx("undefined symbol: %s", nl[i].n_name);
}
if (quit)
exit(1);
}
if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag))
usage();
if (fileflag || totalflag)
filemode();
if (vnodeflag || totalflag)
vnodemode();
if (ttyflag)
ttymode();
if (swapflag || totalflag)
swapmode();
exit (0);
}
struct e_vnode {
struct vnode *avnode;
struct vnode vnode;
};
void
vnodemode()
{
register struct e_vnode *e_vnodebase, *endvnode, *evp;
register struct vnode *vp;
register struct mount *maddr, *mp;
int numvnodes;
e_vnodebase = loadvnodes(&numvnodes);
if (totalflag) {
(void)printf("%7d vnodes\n", numvnodes);
return;
}
endvnode = e_vnodebase + numvnodes;
(void)printf("%d active vnodes\n", numvnodes);
#define ST mp->mnt_stat
maddr = NULL;
for (evp = e_vnodebase; evp < endvnode; evp++) {
vp = &evp->vnode;
if (vp->v_mount != maddr) {
/*
* New filesystem
*/
if ((mp = getmnt(vp->v_mount)) == NULL)
continue;
maddr = vp->v_mount;
mount_print(mp);
vnode_header();
if (!strncmp(ST.f_fstypename, MOUNT_FFS, MFSNAMELEN) ||
!strncmp(ST.f_fstypename, MOUNT_MFS, MFSNAMELEN)) {
ufs_header();
} else if (!strncmp(ST.f_fstypename, MOUNT_NFS,
MFSNAMELEN)) {
nfs_header();
}
(void)printf("\n");
}
vnode_print(evp->avnode, vp);
if (!strncmp(ST.f_fstypename, MOUNT_FFS, MFSNAMELEN) ||
!strncmp(ST.f_fstypename, MOUNT_MFS, MFSNAMELEN)) {
ufs_print(vp);
} else if (!strncmp(ST.f_fstypename, MOUNT_NFS, MFSNAMELEN)) {
nfs_print(vp);
}
(void)printf("\n");
}
free(e_vnodebase);
}
void
vnode_header()
{
(void)printf("ADDR TYP VFLAG USE HOLD");
}
void
vnode_print(avnode, vp)
struct vnode *avnode;
struct vnode *vp;
{
char *type, flags[16];
char *fp = flags;
register int flag;
/*
* set type
*/
switch(vp->v_type) {
case VNON:
type = "non"; break;
case VREG:
type = "reg"; break;
case VDIR:
type = "dir"; break;
case VBLK:
type = "blk"; break;
case VCHR:
type = "chr"; break;
case VLNK:
type = "lnk"; break;
case VSOCK:
type = "soc"; break;
case VFIFO:
type = "fif"; break;
case VBAD:
type = "bad"; break;
default:
type = "unk"; break;
}
/*
* gather flags
*/
flag = vp->v_flag;
if (flag & VROOT)
*fp++ = 'R';
if (flag & VTEXT)
*fp++ = 'T';
if (flag & VSYSTEM)
*fp++ = 'S';
if (flag & VISTTY)
*fp++ = 'I';
if (flag & VXLOCK)
*fp++ = 'L';
if (flag & VXWANT)
*fp++ = 'W';
if (flag & VBWAIT)
*fp++ = 'B';
if (flag & VALIASED)
*fp++ = 'A';
if (flag == 0)
*fp++ = '-';
*fp = '\0';
(void)printf("%8x %s %5s %4d %4d",
avnode, type, flags, vp->v_usecount, vp->v_holdcnt);
}
void
ufs_header()
{
(void)printf(" FILEID IFLAG RDEV|SZ");
}
int
ufs_print(vp)
struct vnode *vp;
{
register int flag;
struct inode inode, *ip = &inode;
char flagbuf[16], *flags = flagbuf;
char *name;
mode_t type;
KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
flag = ip->i_flag;
if (flag & IN_LOCKED)
*flags++ = 'L';
if (flag & IN_WANTED)
*flags++ = 'W';
if (flag & IN_RENAME)
*flags++ = 'R';
if (flag & IN_UPDATE)
*flags++ = 'U';
if (flag & IN_ACCESS)
*flags++ = 'A';
if (flag & IN_CHANGE)
*flags++ = 'C';
if (flag & IN_MODIFIED)
*flags++ = 'M';
if (flag & IN_SHLOCK)
*flags++ = 'S';
if (flag & IN_EXLOCK)
*flags++ = 'E';
if (flag & IN_LWAIT)
*flags++ = 'Z';
if (flag == 0)
*flags++ = '-';
*flags = '\0';
(void)printf(" %6d %5s", ip->i_number, flagbuf);
type = ip->i_mode & S_IFMT;
if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode))
if (usenumflag || ((name = devname(ip->i_rdev, type)) == NULL))
(void)printf(" %2d,%-2d",
major(ip->i_rdev), minor(ip->i_rdev));
else
(void)printf(" %7s", name);
else
(void)printf(" %7qd", ip->i_size);
return (0);
}
void
nfs_header()
{
(void)printf(" FILEID NFLAG RDEV|SZ");
}
int
nfs_print(vp)
struct vnode *vp;
{
struct nfsnode nfsnode, *np = &nfsnode;
char flagbuf[16], *flags = flagbuf;
register int flag;
char *name;
mode_t type;
KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode");
flag = np->n_flag;
if (flag & NFLUSHWANT)
*flags++ = 'W';
if (flag & NFLUSHINPROG)
*flags++ = 'P';
if (flag & NMODIFIED)
*flags++ = 'M';
if (flag & NWRITEERR)
*flags++ = 'E';
if (flag & NQNFSNONCACHE)
*flags++ = 'X';
if (flag & NQNFSWRITE)
*flags++ = 'O';
if (flag & NQNFSEVICTED)
*flags++ = 'G';
if (flag == 0)
*flags++ = '-';
*flags = '\0';
#define VT np->n_vattr
(void)printf(" %6d %5s", VT.va_fileid, flagbuf);
type = VT.va_mode & S_IFMT;
if (S_ISCHR(VT.va_mode) || S_ISBLK(VT.va_mode))
if (usenumflag || ((name = devname(VT.va_rdev, type)) == NULL))
(void)printf(" %2d,%-2d",
major(VT.va_rdev), minor(VT.va_rdev));
else
(void)printf(" %7s", name);
else
(void)printf(" %7qd", np->n_size);
return (0);
}
/*
* Given a pointer to a mount structure in kernel space,
* read it in and return a usable pointer to it.
*/
struct mount *
getmnt(maddr)
struct mount *maddr;
{
static struct mtab {
struct mtab *next;
struct mount *maddr;
struct mount mount;
} *mhead = NULL;
register struct mtab *mt;
for (mt = mhead; mt != NULL; mt = mt->next)
if (maddr == mt->maddr)
return (&mt->mount);
if ((mt = malloc(sizeof(struct mtab))) == NULL)
err(1, NULL);
KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table");
mt->maddr = maddr;
mt->next = mhead;
mhead = mt;
return (&mt->mount);
}
void
mount_print(mp)
struct mount *mp;
{
register int flags;
char *type;
#define ST mp->mnt_stat
(void)printf("*** MOUNT ");
(void)printf("%.*s %s on %s", MFSNAMELEN, ST.f_fstypename,
ST.f_mntfromname, ST.f_mntonname);
if (flags = mp->mnt_flag) {
char *comma = "(";
putchar(' ');
/* user visable flags */
if (flags & MNT_RDONLY) {
(void)printf("%srdonly", comma);
flags &= ~MNT_RDONLY;
comma = ",";
}
if (flags & MNT_SYNCHRONOUS) {
(void)printf("%ssynchronous", comma);
flags &= ~MNT_SYNCHRONOUS;
comma = ",";
}
if (flags & MNT_NOEXEC) {
(void)printf("%snoexec", comma);
flags &= ~MNT_NOEXEC;
comma = ",";
}
if (flags & MNT_NOSUID) {
(void)printf("%snosuid", comma);
flags &= ~MNT_NOSUID;
comma = ",";
}
if (flags & MNT_NODEV) {
(void)printf("%snodev", comma);
flags &= ~MNT_NODEV;
comma = ",";
}
if (flags & MNT_UNION) {
(void)printf("%sunion", comma);
flags &= ~MNT_UNION;
comma = ",";
}
if (flags & MNT_ASYNC) {
(void)printf("%sasync", comma);
flags &= ~MNT_ASYNC;
comma = ",";
}
if (flags & MNT_NOCOREDUMP) {
(void)printf("%snocoredump", comma);
flags &= ~MNT_NOCOREDUMP;
comma = ",";
}
if (flags & MNT_EXRDONLY) {
(void)printf("%sexrdonly", comma);
flags &= ~MNT_EXRDONLY;
comma = ",";
}
if (flags & MNT_EXPORTED) {
(void)printf("%sexport", comma);
flags &= ~MNT_EXPORTED;
comma = ",";
}
if (flags & MNT_DEFEXPORTED) {
(void)printf("%sdefdexported", comma);
flags &= ~MNT_DEFEXPORTED;
comma = ",";
}
if (flags & MNT_EXPORTANON) {
(void)printf("%sexportanon", comma);
flags &= ~MNT_EXPORTANON;
comma = ",";
}
if (flags & MNT_EXKERB) {
(void)printf("%sexkerb", comma);
flags &= ~MNT_EXKERB;
comma = ",";
}
if (flags & MNT_LOCAL) {
(void)printf("%slocal", comma);
flags &= ~MNT_LOCAL;
comma = ",";
}
if (flags & MNT_QUOTA) {
(void)printf("%squota", comma);
flags &= ~MNT_QUOTA;
comma = ",";
}
if (flags & MNT_ROOTFS) {
(void)printf("%srootfs", comma);
flags &= ~MNT_ROOTFS;
comma = ",";
}
/* filesystem control flags */
if (flags & MNT_UPDATE) {
(void)printf("%supdate", comma);
flags &= ~MNT_UPDATE;
comma = ",";
}
if (flags & MNT_MLOCK) {
(void)printf("%slock", comma);
flags &= ~MNT_MLOCK;
comma = ",";
}
if (flags & MNT_MWAIT) {
(void)printf("%swait", comma);
flags &= ~MNT_MWAIT;
comma = ",";
}
if (flags & MNT_MPBUSY) {
(void)printf("%sbusy", comma);
flags &= ~MNT_MPBUSY;
comma = ",";
}
if (flags & MNT_MPWANT) {
(void)printf("%swant", comma);
flags &= ~MNT_MPWANT;
comma = ",";
}
if (flags & MNT_UNMOUNT) {
(void)printf("%sunmount", comma);
flags &= ~MNT_UNMOUNT;
comma = ",";
}
if (flags)
(void)printf("%sunknown_flags:%x", comma, flags);
(void)printf(")");
}
(void)printf("\n");
#undef ST
}
struct e_vnode *
loadvnodes(avnodes)
int *avnodes;
{
int mib[2];
size_t copysize;
struct e_vnode *vnodebase;
if (memf != NULL) {
/*
* do it by hand
*/
return (kinfo_vnodes(avnodes));
}
mib[0] = CTL_KERN;
mib[1] = KERN_VNODE;
if (sysctl(mib, 2, NULL, &copysize, NULL, 0) == -1)
err(1, "sysctl: KERN_VNODE");
if ((vnodebase = malloc(copysize)) == NULL)
err(1, NULL);
if (sysctl(mib, 2, vnodebase, &copysize, NULL, 0) == -1)
err(1, "sysctl: KERN_VNODE");
if (copysize % sizeof(struct e_vnode))
errx(1, "vnode size mismatch");
*avnodes = copysize / sizeof(struct e_vnode);
return (vnodebase);
}
/*
* simulate what a running kernel does in in kinfo_vnode
*/
struct e_vnode *
kinfo_vnodes(avnodes)
int *avnodes;
{
struct mntlist mountlist;
struct mount *mp, mount;
struct vnode *vp, vnode;
char *vbuf, *evbuf, *bp;
int num, numvnodes;
#define VPTRSZ sizeof(struct vnode *)
#define VNODESZ sizeof(struct vnode)
KGET(V_NUMV, numvnodes);
if ((vbuf = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL)
err(1, NULL);
bp = vbuf;
evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ);
KGET(V_MOUNTLIST, mountlist);
for (num = 0, mp = mountlist.cqh_first; ; mp = mount.mnt_list.cqe_next) {
KGET2(mp, &mount, sizeof(mount), "mount entry");
for (vp = mount.mnt_vnodelist.lh_first;
vp != NULL; vp = vnode.v_mntvnodes.le_next) {
KGET2(vp, &vnode, sizeof(vnode), "vnode");
if ((bp + VPTRSZ + VNODESZ) > evbuf)
/* XXX - should realloc */
errx(1, "no more room for vnodes");
memmove(bp, &vp, VPTRSZ);
bp += VPTRSZ;
memmove(bp, &vnode, VNODESZ);
bp += VNODESZ;
num++;
}
if (mp == mountlist.cqh_last)
break;
}
*avnodes = num;
return ((struct e_vnode *)vbuf);
}
char hdr[]=" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n";
void
ttymode()
{
int ntty, i;
struct ttylist_head tty_head;
struct tty *tp, tty;
KGET(TTY_NTTY, ntty);
(void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s");
KGET(TTY_TTYLIST, tty_head);
(void)printf(hdr);
for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) {
KGET2(tp, &tty, sizeof tty, "tty struct");
ttyprt(&tty);
}
}
struct {
int flag;
char val;
} ttystates[] = {
{ TS_WOPEN, 'W'},
{ TS_ISOPEN, 'O'},
{ TS_CARR_ON, 'C'},
{ TS_TIMEOUT, 'T'},
{ TS_FLUSH, 'F'},
{ TS_BUSY, 'B'},
{ TS_ASLEEP, 'A'},
{ TS_XCLUDE, 'X'},
{ TS_TTSTOP, 'S'},
{ TS_TBLOCK, 'K'},
{ TS_ASYNC, 'Y'},
{ TS_BKSL, 'D'},
{ TS_ERASE, 'E'},
{ TS_LNCH, 'L'},
{ TS_TYPEN, 'P'},
{ TS_CNTTB, 'N'},
{ 0, '\0'},
};
void
ttyprt(tp)
register struct tty *tp;
{
register int i, j;
pid_t pgid;
char *name, state[20];
if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL)
(void)printf("0x%3x:%1x ", major(tp->t_dev), minor(tp->t_dev));
else
(void)printf("%-7s ", name);
(void)printf("%3d %4d ", tp->t_rawq.c_cc, tp->t_canq.c_cc);
(void)printf("%4d %4d %3d %6d ", tp->t_outq.c_cc,
tp->t_hiwat, tp->t_lowat, tp->t_column);
for (i = j = 0; ttystates[i].flag; i++)
if (tp->t_state&ttystates[i].flag)
state[j++] = ttystates[i].val;
if (j == 0)
state[j++] = '-';
state[j] = '\0';
(void)printf("%-6s %8x", state, (u_long)tp->t_session & ~KERNBASE);
pgid = 0;
if (tp->t_pgrp != NULL)
KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid");
(void)printf("%6d ", pgid);
switch (tp->t_line) {
case TTYDISC:
(void)printf("term\n");
break;
case TABLDISC:
(void)printf("tab\n");
break;
case SLIPDISC:
(void)printf("slip\n");
break;
case PPPDISC:
(void)printf("ppp\n");
break;
case STRIPDISC:
(void)printf("strip\n");
break;
default:
(void)printf("%d\n", tp->t_line);
break;
}
}
void
filemode()
{
register struct file *fp;
struct file *addr;
char *buf, flagbuf[16], *fbp;
int len, maxfile, nfile;
static char *dtypes[] = { "???", "inode", "socket" };
KGET(FNL_MAXFILE, maxfile);
if (totalflag) {
KGET(FNL_NFILE, nfile);
(void)printf("%3d/%3d files\n", nfile, maxfile);
return;
}
if (getfiles(&buf, &len) == -1)
return;
/*
* Getfiles returns in malloc'd memory a pointer to the first file
* structure, and then an array of file structs (whose addresses are
* derivable from the previous entry).
*/
addr = ((struct filelist *)buf)->lh_first;
fp = (struct file *)(buf + sizeof(struct filelist));
nfile = (len - sizeof(struct filelist)) / sizeof(struct file);
(void)printf("%d/%d open files\n", nfile, maxfile);
(void)printf(" LOC TYPE FLG CNT MSG DATA OFFSET\n");
for (; (char *)fp < buf + len; addr = fp->f_list.le_next, fp++) {
if ((unsigned)fp->f_type > DTYPE_SOCKET)
continue;
(void)printf("%x ", addr);
(void)printf("%-8.8s", dtypes[fp->f_type]);
fbp = flagbuf;
if (fp->f_flag & FREAD)
*fbp++ = 'R';
if (fp->f_flag & FWRITE)
*fbp++ = 'W';
if (fp->f_flag & FAPPEND)
*fbp++ = 'A';
#ifdef FSHLOCK /* currently gone */
if (fp->f_flag & FSHLOCK)
*fbp++ = 'S';
if (fp->f_flag & FEXLOCK)
*fbp++ = 'X';
#endif
if (fp->f_flag & FASYNC)
*fbp++ = 'I';
*fbp = '\0';
(void)printf("%6s %3d", flagbuf, fp->f_count);
(void)printf(" %3d", fp->f_msgcount);
(void)printf(" %8.1x", fp->f_data);
if (fp->f_offset < 0)
(void)printf(" %qx\n", fp->f_offset);
else
(void)printf(" %qd\n", fp->f_offset);
}
free(buf);
}
int
getfiles(abuf, alen)
char **abuf;
int *alen;
{
size_t len;
int mib[2];
char *buf;
/*
* XXX
* Add emulation of KINFO_FILE here.
*/
if (memf != NULL)
errx(1, "files on dead kernel, not implemented\n");
mib[0] = CTL_KERN;
mib[1] = KERN_FILE;
if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) {
warn("sysctl: KERN_FILE");
return (-1);
}
if ((buf = malloc(len)) == NULL)
err(1, NULL);
if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) {
warn("sysctl: KERN_FILE");
return (-1);
}
*abuf = buf;
*alen = len;
return (0);
}
/*
* swapmode is based on a program called swapinfo written
* by Kevin Lahey <kml@rokkaku.atl.ga.us>.
*/
void
swapmode()
{
char *header;
int hlen, nswap, nswdev, dmmax, nswapmap, niswap, niswdev;
int s, e, div, i, l, avail, nfree, npfree, used;
struct swdevt *sw;
long blocksize, *perdev;
struct map *swapmap, *kswapmap;
struct mapent *mp;
KGET(VM_NSWAP, nswap);
KGET(VM_NSWDEV, nswdev);
KGET(VM_DMMAX, dmmax);
KGET(VM_NSWAPMAP, nswapmap);
KGET(VM_SWAPMAP, kswapmap); /* kernel `swapmap' is a pointer */
if ((sw = malloc(nswdev * sizeof(*sw))) == NULL ||
(perdev = malloc(nswdev * sizeof(*perdev))) == NULL ||
(mp = malloc(nswapmap * sizeof(*mp))) == NULL)
err(1, "malloc");
KGET1(VM_SWDEVT, sw, nswdev * sizeof(*sw), "swdevt");
KGET2((long)kswapmap, mp, nswapmap * sizeof(*mp), "swapmap");
/* Supports sequential swap */
if (nl[VM_NISWAP].n_value != 0) {
KGET(VM_NISWAP, niswap);
KGET(VM_NISWDEV, niswdev);
} else {
niswap = nswap;
niswdev = nswdev;
}
/* First entry in map is `struct map'; rest are mapent's. */
swapmap = (struct map *)mp;
if (nswapmap != swapmap->m_limit - (struct mapent *)kswapmap)
errx(1, "panic: nswapmap goof");
/* Count up swap space. */
nfree = 0;
memset(perdev, 0, nswdev * sizeof(*perdev));
for (mp++; mp->m_addr != 0; mp++) {
s = mp->m_addr; /* start of swap region */
e = mp->m_addr + mp->m_size; /* end of region */
nfree += mp->m_size;
/*
* Swap space is split up among the configured disks.
*
* For interleaved swap devices, the first dmmax blocks
* of swap space some from the first disk, the next dmmax
* blocks from the next, and so on up to niswap blocks.
*
* Sequential swap devices follow the interleaved devices
* (i.e. blocks starting at niswap) in the order in which
* they appear in the swdev table. The size of each device
* will be a multiple of dmmax.
*
* The list of free space joins adjacent free blocks,
* ignoring device boundries. If we want to keep track
* of this information per device, we'll just have to
* extract it ourselves. We know that dmmax-sized chunks
* cannot span device boundaries (interleaved or sequential)
* so we loop over such chunks assigning them to devices.
*/
i = -1;
while (s < e) { /* XXX this is inefficient */
int bound = roundup(s+1, dmmax);
if (bound > e)
bound = e;
if (bound <= niswap) {
/* Interleaved swap chunk. */
if (i == -1)
i = (s / dmmax) % niswdev;
perdev[i] += bound - s;
if (++i >= niswdev)
i = 0;
} else {
/* Sequential swap chunk. */
if (i < niswdev) {
i = niswdev;
l = niswap + sw[i].sw_nblks;
}
while (s >= l) {
/* XXX don't die on bogus blocks */
if (i == nswdev-1)
break;
l += sw[++i].sw_nblks;
}
perdev[i] += bound - s;
}
s = bound;
}
}
if (kflag) {
header = "1K-blocks";
blocksize = 1024;
hlen = strlen(header);
} else
header = getbsize(&hlen, &blocksize);
if (!totalflag)
(void)printf("%-11s %*s %8s %8s %8s %s\n",
"Device", hlen, header,
"Used", "Avail", "Capacity", "Type");
div = blocksize / 512;
avail = npfree = 0;
for (i = 0; i < nswdev; i++) {
int xsize, xfree;
/*
* Don't report statistics for partitions which have not
* yet been activated via swapon(8).
*/
if (!(sw[i].sw_flags & SW_FREED))
continue;
if (!totalflag)
(void)printf("/dev/%-6s %*d ",
devname(sw[i].sw_dev, S_IFBLK),
hlen, sw[i].sw_nblks / div);
xsize = sw[i].sw_nblks;
xfree = perdev[i];
used = xsize - xfree;
npfree++;
avail += xsize;
if (totalflag)
continue;
(void)printf("%8d %8d %5.0f%% %s\n",
used / div, xfree / div,
(double)used / (double)xsize * 100.0,
(sw[i].sw_flags & SW_SEQUENTIAL) ?
"Sequential" : "Interleaved");
}
/*
* If only one partition has been set up via swapon(8), we don't
* need to bother with totals.
*/
used = avail - nfree;
if (totalflag) {
(void)printf("%dM/%dM swap space\n", used / 2048, avail / 2048);
return;
}
if (npfree > 1) {
(void)printf("%-11s %*d %8d %8d %5.0f%%\n",
"Total", hlen, avail / div, used / div, nfree / div,
(double)used / (double)avail * 100.0);
}
}
void
usage()
{
(void)fprintf(stderr,
"usage: pstat [-Tfknstv] [-M core] [-N system]\n");
exit(1);
}
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