OpenBSD-4.6/usr.sbin/pstat/pstat.c
/* $OpenBSD: pstat.c,v 1.76 2009/05/31 19:31:23 thib Exp $ */
/* $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. 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 = "$OpenBSD: pstat.c,v 1.76 2009/05/31 19:31:23 thib Exp $";
#endif
#endif /* not lint */
#include <sys/param.h>
#include <sys/time.h>
#include <sys/buf.h>
#include <sys/vnode.h>
#include <sys/ucred.h>
#define _KERNEL
#include <sys/file.h>
#include <ufs/ufs/quota.h>
#include <ufs/ufs/inode.h>
#include <sys/mount.h>
#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/swap.h>
#include <sys/sysctl.h>
#include <err.h>
#include <kvm.h>
#include <limits.h>
#include <nlist.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
struct nlist vnodenl[] = {
#define FNL_NFILE 0 /* sysctl */
{"_nfiles"},
#define FNL_MAXFILE 1 /* sysctl */
{"_maxfiles"},
#define TTY_NTTY 2 /* sysctl */
{"_tty_count"},
#define V_NUMV 3 /* sysctl */
{ "_numvnodes" },
#define TTY_TTYLIST 4 /* sysctl */
{"_ttylist"},
#define V_MOUNTLIST 5 /* no sysctl */
{ "_mountlist" },
{ NULL }
};
struct nlist *globalnl;
int usenumflag;
int totalflag;
int kflag;
char *nlistf = NULL;
char *memf = NULL;
kvm_t *kd = NULL;
#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(globalnl[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(void);
int getfiles(char **, size_t *);
struct mount *
getmnt(struct mount *);
struct e_vnode *
kinfo_vnodes(int *);
struct e_vnode *
loadvnodes(int *);
void mount_print(struct mount *);
void nfs_header(void);
int nfs_print(struct vnode *);
void swapmode(void);
void ttymode(void);
void ttyprt(struct itty *);
void ufs_header(void);
int ufs_print(struct vnode *);
void ext2fs_header(void);
int ext2fs_print(struct vnode *);
void usage(void);
void vnode_header(void);
void vnode_print(struct vnode *, struct vnode *);
void vnodemode(void);
int
main(int argc, char *argv[])
{
int fileflag = 0, swapflag = 0, ttyflag = 0, vnodeflag = 0, ch;
char buf[_POSIX2_LINE_MAX];
const char *dformat = NULL;
extern char *optarg;
extern int optind;
gid_t gid;
int i;
while ((ch = getopt(argc, argv, "d:TM:N:fiknstv")) != -1)
switch (ch) {
case 'd':
dformat = optarg;
break;
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;
if (dformat && getuid())
errx(1, "Only root can use -d");
if ((dformat == 0 && argc > 0) || (dformat && argc == 0))
usage();
/*
* Discard setgid privileges if not the running kernel so that bad
* guys can't print interesting stuff from kernel memory.
*/
gid = getgid();
if (nlistf != NULL || memf != NULL)
if (setresgid(gid, gid, gid) == -1)
err(1, "setresgid");
if (vnodeflag || dformat)
if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0)
errx(1, "kvm_openfiles: %s", buf);
if (nlistf == NULL && memf == NULL)
if (setresgid(gid, gid, gid) == -1)
err(1, "setresgid");
if (dformat) {
struct nlist *nl;
int longformat = 0, stringformat = 0, error = 0, n;
int mask = ~0;
char format[10], buf[1024];
n = strlen(dformat);
if (n == 0)
errx(1, "illegal format");
/*
* Support p, c, s, and {l, ll, h, hh, j, t, z, }[diouxX]
*/
if (strcmp(dformat, "p") == 0)
longformat = sizeof(long) == 8;
else if (strcmp(dformat, "c") == 0)
mask = 0xff;
else if (strcmp(dformat, "s") == 0)
stringformat = 1;
else if (strchr("diouxX", dformat[n - 1])) {
char *ptbl[]= {"l", "ll", "h", "hh", "j", "t", "z", ""};
int i;
char *mod;
for (i = 0; i < sizeof(ptbl)/sizeof(ptbl[0]); i++) {
mod = ptbl[i];
if (strlen(mod) == n - 1 &&
strncmp(mod, dformat, strlen(mod)) == 0)
break;
}
if (i == sizeof(ptbl)/sizeof(ptbl[0])
&& dformat[1] != '\0')
errx(1, "illegal format");
if (strcmp(mod, "l") == 0)
longformat = sizeof(long) == sizeof(long long);
else if (strcmp(mod, "h") == 0)
mask = 0xffff;
else if (strcmp(mod, "hh") == 0)
mask = 0xff;
else
longformat = 1;
} else
errx(1, "illegal format");
if (*dformat == 's') {
stringformat = 1;
snprintf(format, sizeof(format), "%%.%zus",
sizeof buf);
} else
snprintf(format, sizeof(format), "%%%s", dformat);
nl = calloc(argc + 1, sizeof *nl);
if (!nl)
err(1, "calloc nl: ");
for (i = 0; i < argc; i++) {
if (asprintf(&nl[i].n_name, "_%s",
argv[i]) == -1)
warn("asprintf");
}
kvm_nlist(kd, nl);
globalnl = nl;
for (i = 0; i < argc; i++) {
long long v;
printf("%s ", argv[i]);
if (!nl[i].n_value && argv[i][0] == '0') {
nl[i].n_value = strtoul(argv[i], NULL, 16);
nl[i].n_type = N_DATA;
}
if (!nl[i].n_value) {
printf("not found\n");
error++;
continue;
}
printf("at %p: ", (void *)nl[i].n_value);
if (nl[i].n_type == N_DATA) {
if (stringformat) {
KGET1(i, &buf, sizeof(buf), argv[i]);
buf[sizeof(buf) - 1] = '\0';
} else
KGET1(i, &v, sizeof(v), argv[i]);
if (stringformat)
printf(format, &buf);
else if (longformat)
printf(format, v);
else
printf(format, ((int)v) & mask);
}
printf("\n");
}
for (i = 0; i < argc; i++)
free(nl[i].n_name);
free(nl);
exit(error);
}
if (vnodeflag)
if (kvm_nlist(kd, vnodenl) == -1)
errx(1, "kvm_nlist: %s", kvm_geterr(kd));
if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag || dformat))
usage();
if (fileflag || totalflag)
filemode();
if (vnodeflag || totalflag)
vnodemode();
if (ttyflag)
ttymode();
if (swapflag || totalflag)
swapmode();
exit(0);
}
void
vnodemode(void)
{
struct e_vnode *e_vnodebase, *endvnode, *evp;
struct vnode *vp;
struct mount *maddr, *mp = NULL;
int numvnodes;
globalnl = vnodenl;
e_vnodebase = loadvnodes(&numvnodes);
if (totalflag) {
(void)printf("%7d vnodes\n", numvnodes);
return;
}
endvnode = e_vnodebase + numvnodes;
(void)printf("%d active vnodes\n", numvnodes);
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(mp->mnt_stat.f_fstypename, MOUNT_FFS, MFSNAMELEN) ||
!strncmp(mp->mnt_stat.f_fstypename, MOUNT_MFS, MFSNAMELEN)) {
ufs_header();
} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_NFS,
MFSNAMELEN)) {
nfs_header();
} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_EXT2FS,
MFSNAMELEN)) {
ext2fs_header();
}
(void)printf("\n");
}
vnode_print(evp->vptr, vp);
/* Syncer vnodes have no associated fs-specific data */
if (vp->v_data == NULL) {
printf(" %6c %5c %7c\n", '-', '-', '-');
continue;
}
if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_FFS, MFSNAMELEN) ||
!strncmp(mp->mnt_stat.f_fstypename, MOUNT_MFS, MFSNAMELEN)) {
ufs_print(vp);
} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_NFS, MFSNAMELEN)) {
nfs_print(vp);
} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_EXT2FS,
MFSNAMELEN)) {
ext2fs_print(vp);
}
(void)printf("\n");
}
free(e_vnodebase);
}
void
vnode_header(void)
{
(void)printf("%*s TYP VFLAG USE HOLD", 2 * (int)sizeof(long), "ADDR");
}
void
vnode_print(struct vnode *avnode, struct vnode *vp)
{
char *type, flags[16];
char *fp = flags;
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 (vp->v_bioflag & VBIOWAIT)
*fp++ = 'B';
if (flag & VALIASED)
*fp++ = 'A';
if (vp->v_bioflag & VBIOONFREELIST)
*fp++ = 'F';
if (flag & VLOCKSWORK)
*fp++ = 'l';
if (vp->v_bioflag & VBIOONSYNCLIST)
*fp++ = 's';
if (flag == 0)
*fp++ = '-';
*fp = '\0';
(void)printf("%0*lx %s %5s %4d %4u", 2 * (int)sizeof(long),
(long)avnode, type, flags, vp->v_usecount, vp->v_holdcnt);
}
void
ufs_header(void)
{
(void)printf(" FILEID IFLAG RDEV|SZ");
}
int
ufs_print(struct vnode *vp)
{
int flag;
struct inode inode, *ip = &inode;
struct ufs1_dinode di1;
char flagbuf[16], *flags = flagbuf;
char *name;
mode_t type;
KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
KGETRET(inode.i_din1, &di1, sizeof(struct ufs1_dinode),
"vnode's dinode");
inode.i_din1 = &di1;
flag = ip->i_flag;
#if 0
if (flag & IN_LOCKED)
*flags++ = 'L';
if (flag & IN_WANTED)
*flags++ = 'W';
if (flag & IN_LWAIT)
*flags++ = 'Z';
#endif
if (flag & IN_ACCESS)
*flags++ = 'A';
if (flag & IN_CHANGE)
*flags++ = 'C';
if (flag & IN_UPDATE)
*flags++ = 'U';
if (flag & IN_MODIFIED)
*flags++ = 'M';
if (flag & IN_RENAME)
*flags++ = 'R';
if (flag & IN_SHLOCK)
*flags++ = 'S';
if (flag & IN_EXLOCK)
*flags++ = 'E';
if (flag == 0)
*flags++ = '-';
*flags = '\0';
(void)printf(" %6d %5s", ip->i_number, flagbuf);
type = ip->i_ffs1_mode & S_IFMT;
if (S_ISCHR(ip->i_ffs1_mode) || S_ISBLK(ip->i_ffs1_mode))
if (usenumflag ||
((name = devname(ip->i_ffs1_rdev, type)) == NULL))
(void)printf(" %2d,%-2d",
major(ip->i_ffs1_rdev), minor(ip->i_ffs1_rdev));
else
(void)printf(" %7s", name);
else
(void)printf(" %7qd", ip->i_ffs1_size);
return (0);
}
void
ext2fs_header(void)
{
(void)printf(" FILEID IFLAG SZ");
}
int
ext2fs_print(struct vnode *vp)
{
int flag;
struct inode inode, *ip = &inode;
struct ext2fs_dinode di;
char flagbuf[16], *flags = flagbuf;
KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
KGETRET(inode.i_e2din, &di, sizeof(struct ext2fs_dinode),
"vnode's dinode");
inode.i_e2din = &di;
flag = ip->i_flag;
#if 0
if (flag & IN_LOCKED)
*flags++ = 'L';
if (flag & IN_WANTED)
*flags++ = 'W';
if (flag & IN_LWAIT)
*flags++ = 'Z';
#endif
if (flag & IN_ACCESS)
*flags++ = 'A';
if (flag & IN_CHANGE)
*flags++ = 'C';
if (flag & IN_UPDATE)
*flags++ = 'U';
if (flag & IN_MODIFIED)
*flags++ = 'M';
if (flag & IN_RENAME)
*flags++ = 'R';
if (flag & IN_SHLOCK)
*flags++ = 'S';
if (flag & IN_EXLOCK)
*flags++ = 'E';
if (flag == 0)
*flags++ = '-';
*flags = '\0';
(void)printf(" %6d %5s %2d", ip->i_number, flagbuf, ip->i_e2fs_size);
return (0);
}
void
nfs_header(void)
{
(void)printf(" FILEID NFLAG RDEV|SZ");
}
int
nfs_print(struct vnode *vp)
{
struct nfsnode nfsnode, *np = &nfsnode;
char flagbuf[16], *flags = flagbuf;
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 & NACC)
*flags++ = 'A';
if (flag & NUPD)
*flags++ = 'U';
if (flag & NCHG)
*flags++ = 'C';
if (flag == 0)
*flags++ = '-';
*flags = '\0';
(void)printf(" %6ld %5s", np->n_vattr.va_fileid, flagbuf);
type = np->n_vattr.va_mode & S_IFMT;
if (S_ISCHR(np->n_vattr.va_mode) || S_ISBLK(np->n_vattr.va_mode))
if (usenumflag ||
((name = devname(np->n_vattr.va_rdev, type)) == NULL))
(void)printf(" %2d,%-2d", major(np->n_vattr.va_rdev),
minor(np->n_vattr.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(struct mount *maddr)
{
static struct mtab {
struct mtab *next;
struct mount *maddr;
struct mount mount;
} *mhead = NULL;
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, "malloc: mount table");
KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table");
mt->maddr = maddr;
mt->next = mhead;
mhead = mt;
return (&mt->mount);
}
void
mount_print(struct mount *mp)
{
int flags;
(void)printf("*** MOUNT ");
(void)printf("%.*s %s on %s", MFSNAMELEN,
mp->mnt_stat.f_fstypename, mp->mnt_stat.f_mntfromname,
mp->mnt_stat.f_mntonname);
if ((flags = mp->mnt_flag)) {
char *comma = "(";
putchar(' ');
/* user visible 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_ASYNC) {
(void)printf("%sasync", comma);
flags &= ~MNT_ASYNC;
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 = ",";
}
if (flags & MNT_NOATIME) {
(void)printf("%snoatime", comma);
flags &= ~MNT_NOATIME;
comma = ",";
}
/* filesystem control flags */
if (flags & MNT_UPDATE) {
(void)printf("%supdate", comma);
flags &= ~MNT_UPDATE;
comma = ",";
}
if (flags & MNT_DELEXPORT) {
(void)printf("%sdelexport", comma);
flags &= ~MNT_DELEXPORT;
comma = ",";
}
if (flags & MNT_RELOAD) {
(void)printf("%sreload", comma);
flags &= ~MNT_RELOAD;
comma = ",";
}
if (flags & MNT_FORCE) {
(void)printf("%sforce", comma);
flags &= ~MNT_FORCE;
comma = ",";
}
if (flags & MNT_WANTRDWR) {
(void)printf("%swantrdwr", comma);
flags &= ~MNT_WANTRDWR;
comma = ",";
}
if (flags & MNT_SOFTDEP) {
(void)printf("%ssoftdep", comma);
flags &= ~MNT_SOFTDEP;
comma = ",";
}
if (flags)
(void)printf("%sunknown_flags:%x", comma, flags);
(void)printf(")");
}
(void)printf("\n");
}
struct e_vnode *
loadvnodes(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, ©size, NULL, 0) == -1)
err(1, "sysctl: KERN_VNODE");
if ((vnodebase = malloc(copysize)) == NULL)
err(1, "malloc: vnode table");
if (sysctl(mib, 2, vnodebase, ©size, 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 kinfo_vnode
*/
struct e_vnode *
kinfo_vnodes(int *avnodes)
{
struct mntlist kvm_mountlist;
struct mount *mp, mount;
struct vnode *vp, vnode;
char *vbuf, *evbuf, *bp;
int mib[2], numvnodes;
size_t num;
if (kd == 0) {
mib[0] = CTL_KERN;
mib[1] = KERN_NUMVNODES;
num = sizeof(numvnodes);
if (sysctl(mib, 2, &numvnodes, &num, NULL, 0) < 0)
err(1, "sysctl(KERN_NUMVNODES) failed");
} else
KGET(V_NUMV, numvnodes);
if ((vbuf = calloc(numvnodes + 20,
sizeof(struct vnode *) + sizeof(struct vnode))) == NULL)
err(1, "malloc: vnode buffer");
bp = vbuf;
evbuf = vbuf + (numvnodes + 20) *
(sizeof(struct vnode *) + sizeof(struct vnode));
KGET(V_MOUNTLIST, kvm_mountlist);
for (num = 0, mp = CIRCLEQ_FIRST(&kvm_mountlist); ;
mp = CIRCLEQ_NEXT(&mount, mnt_list)) {
KGET2(mp, &mount, sizeof(mount), "mount entry");
for (vp = LIST_FIRST(&mount.mnt_vnodelist);
vp != NULL; vp = LIST_NEXT(&vnode, v_mntvnodes)) {
KGET2(vp, &vnode, sizeof(vnode), "vnode");
if ((bp + sizeof(struct vnode *) +
sizeof(struct vnode)) > evbuf)
/* XXX - should realloc */
errx(1, "no more room for vnodes");
memmove(bp, &vp, sizeof(struct vnode *));
bp += sizeof(struct vnode *);
memmove(bp, &vnode, sizeof(struct vnode));
bp += sizeof(struct vnode);
num++;
}
if (mp == CIRCLEQ_LAST(&kvm_mountlist))
break;
}
*avnodes = num;
return ((struct e_vnode *)vbuf);
}
const char hdr[] =
" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n";
void
tty2itty(struct tty *tp, struct itty *itp)
{
itp->t_dev = tp->t_dev;
itp->t_rawq_c_cc = tp->t_rawq.c_cc;
itp->t_canq_c_cc = tp->t_canq.c_cc;
itp->t_outq_c_cc = tp->t_outq.c_cc;
itp->t_hiwat = tp->t_hiwat;
itp->t_lowat = tp->t_lowat;
itp->t_column = tp->t_column;
itp->t_state = tp->t_state;
itp->t_session = tp->t_session;
if (tp->t_pgrp != NULL)
KGET2(&tp->t_pgrp->pg_id, &itp->t_pgrp_pg_id, sizeof(pid_t), "pgid");
itp->t_line = tp->t_line;
}
void
ttymode(void)
{
struct ttylist_head tty_head;
struct tty *tp, tty;
int mib[3], ntty, i;
struct itty itty, *itp;
size_t nlen;
if (kd == 0) {
mib[0] = CTL_KERN;
mib[1] = KERN_TTYCOUNT;
nlen = sizeof(ntty);
if (sysctl(mib, 2, &ntty, &nlen, NULL, 0) < 0)
err(1, "sysctl(KERN_TTYCOUNT) failed");
} else
KGET(TTY_NTTY, ntty);
(void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s");
(void)printf("%s", hdr);
if (kd == 0) {
mib[0] = CTL_KERN;
mib[1] = KERN_TTY;
mib[2] = KERN_TTY_INFO;
nlen = ntty * sizeof(struct itty);
if ((itp = malloc(nlen)) == NULL)
err(1, "malloc");
if (sysctl(mib, 3, itp, &nlen, NULL, 0) < 0)
err(1, "sysctl(KERN_TTY_INFO) failed");
for (i = 0; i < ntty; i++)
ttyprt(&itp[i]);
free(itp);
} else {
KGET(TTY_TTYLIST, tty_head);
for (tp = TAILQ_FIRST(&tty_head); tp;
tp = TAILQ_NEXT(&tty, tty_link)) {
KGET2(tp, &tty, sizeof tty, "tty struct");
tty2itty(&tty, &itty);
ttyprt(&itty);
}
}
}
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(struct itty *tp)
{
char *name, state[20];
int i, j;
if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL)
(void)printf("%2d,%-3d ", 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 %8lx", state, (u_long)tp->t_session & ~KERNBASE);
(void)printf("%6d ", tp->t_pgrp_pg_id);
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;
case NMEADISC:
(void)printf("nmea\n");
break;
default:
(void)printf("%d\n", tp->t_line);
break;
}
}
void
filemode(void)
{
struct file fp, *ffp, *addr;
char *buf, flagbuf[16], *fbp;
static char *dtypes[] = { "???", "inode", "socket" };
int mib[2], maxfile, nfile;
size_t len;
globalnl = vnodenl;
if (kd == 0) {
mib[0] = CTL_KERN;
mib[1] = KERN_MAXFILES;
len = sizeof(maxfile);
if (sysctl(mib, 2, &maxfile, &len, NULL, 0) < 0)
err(1, "sysctl(KERN_MAXFILES) failed");
if (totalflag) {
mib[0] = CTL_KERN;
mib[1] = KERN_NFILES;
len = sizeof(nfile);
if (sysctl(mib, 2, &nfile, &len, NULL, 0) < 0)
err(1, "sysctl(KERN_NFILES) failed");
}
} else {
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 = LIST_FIRST((struct filelist *)buf);
ffp = (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("%*s TYPE FLG CNT MSG %*s OFFSET\n",
2 * (int)sizeof(long), "LOC", 2 * (int)sizeof(long), "DATA");
for (; (char *)ffp < buf + len; addr = LIST_NEXT(ffp, f_list), ffp++) {
memmove(&fp, ffp, sizeof fp);
if ((unsigned)fp.f_type > DTYPE_SOCKET)
continue;
(void)printf("%0*lx ", 2 * (int)sizeof(long), (long)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';
if (fp.f_flag & FHASLOCK)
*fbp++ = 'L';
if (fp.f_flag & FASYNC)
*fbp++ = 'I';
*fbp = '\0';
(void)printf("%6s %3ld", flagbuf, fp.f_count);
(void)printf(" %3ld", fp.f_msgcount);
(void)printf(" %0*lx", 2 * (int)sizeof(long), (long)fp.f_data);
if (fp.f_offset == (off_t)-1)
(void)printf(" *\n");
else if (fp.f_offset < 0)
(void)printf(" %llx\n", (long long)fp.f_offset);
else
(void)printf(" %lld\n", (long long)fp.f_offset);
}
free(buf);
}
int
getfiles(char **abuf, size_t *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");
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, "malloc: KERN_FILE");
if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) {
warn("sysctl: KERN_FILE");
free(buf);
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(void)
{
char *header;
int hlen = 10, nswap;
int bdiv, i, avail, nfree, npfree, used;
long blocksize;
struct swapent *swdev;
if (kflag) {
header = "1K-blocks";
blocksize = 1024;
hlen = strlen(header);
} else
header = getbsize(&hlen, &blocksize);
nswap = swapctl(SWAP_NSWAP, 0, 0);
if (nswap == 0) {
if (!totalflag)
(void)printf("%-11s %*s %8s %8s %8s %s\n",
"Device", hlen, header,
"Used", "Avail", "Capacity", "Priority");
(void)printf("%-11s %*d %8d %8d %5.0f%%\n",
"Total", hlen, 0, 0, 0, 0.0);
return;
}
if ((swdev = calloc(nswap, sizeof(*swdev))) == NULL)
err(1, "malloc");
if (swapctl(SWAP_STATS, swdev, nswap) == -1)
err(1, "swapctl");
if (!totalflag)
(void)printf("%-11s %*s %8s %8s %8s %s\n",
"Device", hlen, header,
"Used", "Avail", "Capacity", "Priority");
/* Run through swap list, doing the funky monkey. */
bdiv = blocksize / DEV_BSIZE;
avail = nfree = npfree = 0;
for (i = 0; i < nswap; i++) {
int xsize, xfree;
if (!(swdev[i].se_flags & SWF_ENABLE))
continue;
if (!totalflag) {
if (usenumflag)
(void)printf("%2d,%-2d %*d ",
major(swdev[i].se_dev),
minor(swdev[i].se_dev),
hlen, swdev[i].se_nblks / bdiv);
else
(void)printf("%-11s %*d ", swdev[i].se_path,
hlen, swdev[i].se_nblks / bdiv);
}
xsize = swdev[i].se_nblks;
used = swdev[i].se_inuse;
xfree = xsize - used;
nfree += (xsize - used);
npfree++;
avail += xsize;
if (totalflag)
continue;
(void)printf("%8d %8d %5.0f%% %d\n",
used / bdiv, xfree / bdiv,
(double)used / (double)xsize * 100.0,
swdev[i].se_priority);
}
free(swdev);
/*
* 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 / (1048576 / DEV_BSIZE),
avail / (1048576 / DEV_BSIZE));
return;
}
if (npfree > 1) {
(void)printf("%-11s %*d %8d %8d %5.0f%%\n",
"Total", hlen, avail / bdiv, used / bdiv, nfree / bdiv,
(double)used / (double)avail * 100.0);
}
}
void
usage(void)
{
(void)fprintf(stderr, "usage: "
"pstat [-fknsTtv] [-d format] [-M core] [-N system] [symbols]\n");
exit(1);
}