pstat.c revision 1.76 
1/*	$OpenBSD: pstat.c,v 1.76 2009/05/31 19:31:23 thib Exp $	*/
2/*	$NetBSD: pstat.c,v 1.27 1996/10/23 22:50:06 cgd Exp $	*/
3
4/*-
5 * Copyright (c) 1980, 1991, 1993
6 *	The Regents of the University of California.  All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#ifndef lint
34static char copyright[] =
35"@(#) Copyright (c) 1980, 1991, 1993\n\
36	The Regents of the University of California.  All rights reserved.\n";
37#endif /* not lint */
38
39#ifndef lint
40#if 0
41from: static char sccsid[] = "@(#)pstat.c	8.9 (Berkeley) 2/16/94";
42#else
43static char *rcsid = "$OpenBSD: pstat.c,v 1.76 2009/05/31 19:31:23 thib Exp $";
44#endif
45#endif /* not lint */
46
47#include <sys/param.h>
48#include <sys/time.h>
49#include <sys/buf.h>
50#include <sys/vnode.h>
51#include <sys/ucred.h>
52#define _KERNEL
53#include <sys/file.h>
54#include <ufs/ufs/quota.h>
55#include <ufs/ufs/inode.h>
56#include <sys/mount.h>
57#undef _KERNEL
58#include <sys/stat.h>
59#include <nfs/nfsproto.h>
60#include <nfs/rpcv2.h>
61#include <nfs/nfsnode.h>
62#include <sys/ioctl.h>
63#include <sys/tty.h>
64#include <sys/conf.h>
65#include <sys/device.h>
66#include <sys/swap.h>
67
68#include <sys/sysctl.h>
69
70#include <err.h>
71#include <kvm.h>
72#include <limits.h>
73#include <nlist.h>
74#include <paths.h>
75#include <stdio.h>
76#include <stdlib.h>
77#include <string.h>
78#include <unistd.h>
79
80struct nlist vnodenl[] = {
81#define	FNL_NFILE	0		/* sysctl */
82	{"_nfiles"},
83#define FNL_MAXFILE	1		/* sysctl */
84	{"_maxfiles"},
85#define TTY_NTTY	2		/* sysctl */
86	{"_tty_count"},
87#define V_NUMV		3		/* sysctl */
88	{ "_numvnodes" },
89#define TTY_TTYLIST	4		/* sysctl */
90	{"_ttylist"},
91#define	V_MOUNTLIST	5		/* no sysctl */
92	{ "_mountlist" },
93	{ NULL }
94};
95
96struct nlist *globalnl;
97
98int	usenumflag;
99int	totalflag;
100int	kflag;
101char	*nlistf	= NULL;
102char	*memf	= NULL;
103kvm_t	*kd = NULL;
104
105#define	SVAR(var) __STRING(var)	/* to force expansion */
106#define	KGET(idx, var)							\
107	KGET1(idx, &var, sizeof(var), SVAR(var))
108#define	KGET1(idx, p, s, msg)						\
109	KGET2(globalnl[idx].n_value, p, s, msg)
110#define	KGET2(addr, p, s, msg)						\
111	if (kvm_read(kd, (u_long)(addr), p, s) != s)			\
112		warnx("cannot read %s: %s", msg, kvm_geterr(kd))
113#define	KGETRET(addr, p, s, msg)					\
114	if (kvm_read(kd, (u_long)(addr), p, s) != s) {			\
115		warnx("cannot read %s: %s", msg, kvm_geterr(kd));	\
116		return (0);						\
117	}
118
119void	filemode(void);
120int	getfiles(char **, size_t *);
121struct mount *
122	getmnt(struct mount *);
123struct e_vnode *
124	kinfo_vnodes(int *);
125struct e_vnode *
126	loadvnodes(int *);
127void	mount_print(struct mount *);
128void	nfs_header(void);
129int	nfs_print(struct vnode *);
130void	swapmode(void);
131void	ttymode(void);
132void	ttyprt(struct itty *);
133void	ufs_header(void);
134int	ufs_print(struct vnode *);
135void	ext2fs_header(void);
136int	ext2fs_print(struct vnode *);
137void	usage(void);
138void	vnode_header(void);
139void	vnode_print(struct vnode *, struct vnode *);
140void	vnodemode(void);
141
142int
143main(int argc, char *argv[])
144{
145	int fileflag = 0, swapflag = 0, ttyflag = 0, vnodeflag = 0, ch;
146	char buf[_POSIX2_LINE_MAX];
147	const char *dformat = NULL;
148	extern char *optarg;
149	extern int optind;
150	gid_t gid;
151	int i;
152
153	while ((ch = getopt(argc, argv, "d:TM:N:fiknstv")) != -1)
154		switch (ch) {
155		case 'd':
156			dformat = optarg;
157			break;
158		case 'f':
159			fileflag = 1;
160			break;
161		case 'M':
162			memf = optarg;
163			break;
164		case 'N':
165			nlistf = optarg;
166			break;
167		case 'n':
168			usenumflag = 1;
169			break;
170		case 's':
171			swapflag = 1;
172			break;
173		case 'T':
174			totalflag = 1;
175			break;
176		case 't':
177			ttyflag = 1;
178			break;
179		case 'k':
180			kflag = 1;
181			break;
182		case 'v':
183		case 'i':		/* Backward compatibility. */
184			vnodeflag = 1;
185			break;
186		default:
187			usage();
188		}
189	argc -= optind;
190	argv += optind;
191
192	if (dformat && getuid())
193		errx(1, "Only root can use -d");
194
195	if ((dformat == 0 && argc > 0) || (dformat && argc == 0))
196		usage();
197
198	/*
199	 * Discard setgid privileges if not the running kernel so that bad
200	 * guys can't print interesting stuff from kernel memory.
201	 */
202	gid = getgid();
203	if (nlistf != NULL || memf != NULL)
204		if (setresgid(gid, gid, gid) == -1)
205			err(1, "setresgid");
206
207	if (vnodeflag || dformat)
208		if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0)
209			errx(1, "kvm_openfiles: %s", buf);
210
211	if (nlistf == NULL && memf == NULL)
212		if (setresgid(gid, gid, gid) == -1)
213			err(1, "setresgid");
214	if (dformat) {
215		struct nlist *nl;
216		int longformat = 0, stringformat = 0, error = 0, n;
217		int mask = ~0;
218		char format[10], buf[1024];
219
220		n = strlen(dformat);
221		if (n == 0)
222			errx(1, "illegal format");
223
224		/*
225		 * Support p, c, s, and {l, ll, h, hh, j, t, z, }[diouxX]
226		 */
227		if (strcmp(dformat, "p") == 0)
228			longformat = sizeof(long) == 8;
229		else if (strcmp(dformat, "c") == 0)
230			mask = 0xff;
231		else if (strcmp(dformat, "s") == 0)
232			stringformat = 1;
233		else if (strchr("diouxX", dformat[n - 1])) {
234			char *ptbl[]= {"l", "ll", "h", "hh", "j", "t", "z", ""};
235			int i;
236
237			char *mod;
238			for (i = 0; i < sizeof(ptbl)/sizeof(ptbl[0]); i++) {
239				mod = ptbl[i];
240				if (strlen(mod) == n - 1 &&
241				    strncmp(mod, dformat, strlen(mod)) == 0)
242					break;
243			}
244			if (i == sizeof(ptbl)/sizeof(ptbl[0])
245			    && dformat[1] != '\0')
246				errx(1, "illegal format");
247			if (strcmp(mod, "l") == 0)
248				longformat = sizeof(long) == sizeof(long long);
249			else if (strcmp(mod, "h") == 0)
250				mask = 0xffff;
251			else if (strcmp(mod, "hh") == 0)
252				mask = 0xff;
253			else
254				longformat = 1;
255
256		} else
257			errx(1, "illegal format");
258
259		if (*dformat == 's') {
260			stringformat = 1;
261			snprintf(format, sizeof(format), "%%.%zus",
262			    sizeof buf);
263		} else
264			snprintf(format, sizeof(format), "%%%s", dformat);
265
266		nl = calloc(argc + 1, sizeof *nl);
267		if (!nl)
268			err(1, "calloc nl: ");
269		for (i = 0; i < argc; i++) {
270			if (asprintf(&nl[i].n_name, "_%s",
271			    argv[i]) == -1)
272				warn("asprintf");
273		}
274		kvm_nlist(kd, nl);
275		globalnl = nl;
276		for (i = 0; i < argc; i++) {
277			long long v;
278
279			printf("%s ", argv[i]);
280			if (!nl[i].n_value && argv[i][0] == '0') {
281				nl[i].n_value = strtoul(argv[i], NULL, 16);
282				nl[i].n_type = N_DATA;
283			}
284			if (!nl[i].n_value) {
285				printf("not found\n");
286				error++;
287				continue;
288			}
289
290			printf("at %p: ", (void *)nl[i].n_value);
291			if (nl[i].n_type == N_DATA) {
292				if (stringformat) {
293					KGET1(i, &buf, sizeof(buf), argv[i]);
294					buf[sizeof(buf) - 1] = '\0';
295				} else
296					KGET1(i, &v, sizeof(v), argv[i]);
297				if (stringformat)
298					printf(format, &buf);
299				else if (longformat)
300					printf(format, v);
301				else
302					printf(format, ((int)v) & mask);
303			}
304			printf("\n");
305		}
306		for (i = 0; i < argc; i++)
307			free(nl[i].n_name);
308		free(nl);
309		exit(error);
310	}
311
312	if (vnodeflag)
313		if (kvm_nlist(kd, vnodenl) == -1)
314			errx(1, "kvm_nlist: %s", kvm_geterr(kd));
315
316	if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag || dformat))
317		usage();
318	if (fileflag || totalflag)
319		filemode();
320	if (vnodeflag || totalflag)
321		vnodemode();
322	if (ttyflag)
323		ttymode();
324	if (swapflag || totalflag)
325		swapmode();
326	exit(0);
327}
328
329void
330vnodemode(void)
331{
332	struct e_vnode *e_vnodebase, *endvnode, *evp;
333	struct vnode *vp;
334	struct mount *maddr, *mp = NULL;
335	int numvnodes;
336
337	globalnl = vnodenl;
338
339	e_vnodebase = loadvnodes(&numvnodes);
340	if (totalflag) {
341		(void)printf("%7d vnodes\n", numvnodes);
342		return;
343	}
344	endvnode = e_vnodebase + numvnodes;
345	(void)printf("%d active vnodes\n", numvnodes);
346
347	maddr = NULL;
348	for (evp = e_vnodebase; evp < endvnode; evp++) {
349		vp = &evp->vnode;
350		if (vp->v_mount != maddr) {
351			/*
352			 * New filesystem
353			 */
354			if ((mp = getmnt(vp->v_mount)) == NULL)
355				continue;
356			maddr = vp->v_mount;
357			mount_print(mp);
358			vnode_header();
359			if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_FFS, MFSNAMELEN) ||
360			    !strncmp(mp->mnt_stat.f_fstypename, MOUNT_MFS, MFSNAMELEN)) {
361				ufs_header();
362			} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_NFS,
363			    MFSNAMELEN)) {
364				nfs_header();
365			} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_EXT2FS,
366			    MFSNAMELEN)) {
367				ext2fs_header();
368			}
369			(void)printf("\n");
370		}
371		vnode_print(evp->vptr, vp);
372
373		/* Syncer vnodes have no associated fs-specific data */
374		if (vp->v_data == NULL) {
375			printf(" %6c %5c %7c\n", '-', '-', '-');
376			continue;
377		}
378
379		if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_FFS, MFSNAMELEN) ||
380		    !strncmp(mp->mnt_stat.f_fstypename, MOUNT_MFS, MFSNAMELEN)) {
381			ufs_print(vp);
382		} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_NFS, MFSNAMELEN)) {
383			nfs_print(vp);
384		} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_EXT2FS,
385		    MFSNAMELEN)) {
386			ext2fs_print(vp);
387		}
388		(void)printf("\n");
389	}
390	free(e_vnodebase);
391}
392
393void
394vnode_header(void)
395{
396	(void)printf("%*s TYP VFLAG  USE HOLD", 2 * (int)sizeof(long), "ADDR");
397}
398
399void
400vnode_print(struct vnode *avnode, struct vnode *vp)
401{
402	char *type, flags[16];
403	char *fp = flags;
404	int flag;
405
406	/*
407	 * set type
408	 */
409	switch (vp->v_type) {
410	case VNON:
411		type = "non"; break;
412	case VREG:
413		type = "reg"; break;
414	case VDIR:
415		type = "dir"; break;
416	case VBLK:
417		type = "blk"; break;
418	case VCHR:
419		type = "chr"; break;
420	case VLNK:
421		type = "lnk"; break;
422	case VSOCK:
423		type = "soc"; break;
424	case VFIFO:
425		type = "fif"; break;
426	case VBAD:
427		type = "bad"; break;
428	default:
429		type = "unk"; break;
430	}
431	/*
432	 * gather flags
433	 */
434	flag = vp->v_flag;
435	if (flag & VROOT)
436		*fp++ = 'R';
437	if (flag & VTEXT)
438		*fp++ = 'T';
439	if (flag & VSYSTEM)
440		*fp++ = 'S';
441	if (flag & VISTTY)
442		*fp++ = 'I';
443	if (flag & VXLOCK)
444		*fp++ = 'L';
445	if (flag & VXWANT)
446		*fp++ = 'W';
447	if (vp->v_bioflag & VBIOWAIT)
448		*fp++ = 'B';
449	if (flag & VALIASED)
450		*fp++ = 'A';
451	if (vp->v_bioflag & VBIOONFREELIST)
452		*fp++ = 'F';
453	if (flag & VLOCKSWORK)
454		*fp++ = 'l';
455	if (vp->v_bioflag & VBIOONSYNCLIST)
456		*fp++ = 's';
457	if (flag == 0)
458		*fp++ = '-';
459	*fp = '\0';
460	(void)printf("%0*lx %s %5s %4d %4u", 2 * (int)sizeof(long),
461	    (long)avnode, type, flags, vp->v_usecount, vp->v_holdcnt);
462}
463
464void
465ufs_header(void)
466{
467	(void)printf(" FILEID IFLAG RDEV|SZ");
468}
469
470int
471ufs_print(struct vnode *vp)
472{
473	int flag;
474	struct inode inode, *ip = &inode;
475	struct ufs1_dinode di1;
476	char flagbuf[16], *flags = flagbuf;
477	char *name;
478	mode_t type;
479
480	KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
481	KGETRET(inode.i_din1, &di1, sizeof(struct ufs1_dinode),
482	    "vnode's dinode");
483
484	inode.i_din1 = &di1;
485	flag = ip->i_flag;
486#if 0
487	if (flag & IN_LOCKED)
488		*flags++ = 'L';
489	if (flag & IN_WANTED)
490		*flags++ = 'W';
491	if (flag & IN_LWAIT)
492		*flags++ = 'Z';
493#endif
494	if (flag & IN_ACCESS)
495		*flags++ = 'A';
496	if (flag & IN_CHANGE)
497		*flags++ = 'C';
498	if (flag & IN_UPDATE)
499		*flags++ = 'U';
500	if (flag & IN_MODIFIED)
501		*flags++ = 'M';
502	if (flag & IN_RENAME)
503		*flags++ = 'R';
504	if (flag & IN_SHLOCK)
505		*flags++ = 'S';
506	if (flag & IN_EXLOCK)
507		*flags++ = 'E';
508	if (flag == 0)
509		*flags++ = '-';
510	*flags = '\0';
511
512	(void)printf(" %6d %5s", ip->i_number, flagbuf);
513	type = ip->i_ffs1_mode & S_IFMT;
514	if (S_ISCHR(ip->i_ffs1_mode) || S_ISBLK(ip->i_ffs1_mode))
515		if (usenumflag ||
516		    ((name = devname(ip->i_ffs1_rdev, type)) == NULL))
517			(void)printf("   %2d,%-2d",
518			    major(ip->i_ffs1_rdev), minor(ip->i_ffs1_rdev));
519		else
520			(void)printf(" %7s", name);
521	else
522		(void)printf(" %7qd", ip->i_ffs1_size);
523	return (0);
524}
525
526void
527ext2fs_header(void)
528{
529	(void)printf(" FILEID IFLAG SZ");
530}
531
532int
533ext2fs_print(struct vnode *vp)
534{
535	int flag;
536	struct inode inode, *ip = &inode;
537	struct ext2fs_dinode di;
538	char flagbuf[16], *flags = flagbuf;
539
540	KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
541	KGETRET(inode.i_e2din, &di, sizeof(struct ext2fs_dinode),
542	    "vnode's dinode");
543
544	inode.i_e2din = &di;
545	flag = ip->i_flag;
546
547#if 0
548	if (flag & IN_LOCKED)
549		*flags++ = 'L';
550	if (flag & IN_WANTED)
551		*flags++ = 'W';
552	if (flag & IN_LWAIT)
553		*flags++ = 'Z';
554#endif
555	if (flag & IN_ACCESS)
556		*flags++ = 'A';
557	if (flag & IN_CHANGE)
558		*flags++ = 'C';
559	if (flag & IN_UPDATE)
560		*flags++ = 'U';
561	if (flag & IN_MODIFIED)
562		*flags++ = 'M';
563	if (flag & IN_RENAME)
564		*flags++ = 'R';
565	if (flag & IN_SHLOCK)
566		*flags++ = 'S';
567	if (flag & IN_EXLOCK)
568		*flags++ = 'E';
569	if (flag == 0)
570		*flags++ = '-';
571	*flags = '\0';
572
573	(void)printf(" %6d %5s %2d", ip->i_number, flagbuf, ip->i_e2fs_size);
574	return (0);
575}
576
577void
578nfs_header(void)
579{
580	(void)printf(" FILEID NFLAG RDEV|SZ");
581}
582
583int
584nfs_print(struct vnode *vp)
585{
586	struct nfsnode nfsnode, *np = &nfsnode;
587	char flagbuf[16], *flags = flagbuf;
588	int flag;
589	char *name;
590	mode_t type;
591
592	KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode");
593	flag = np->n_flag;
594	if (flag & NFLUSHWANT)
595		*flags++ = 'W';
596	if (flag & NFLUSHINPROG)
597		*flags++ = 'P';
598	if (flag & NMODIFIED)
599		*flags++ = 'M';
600	if (flag & NWRITEERR)
601		*flags++ = 'E';
602	if (flag & NACC)
603		*flags++ = 'A';
604	if (flag & NUPD)
605		*flags++ = 'U';
606	if (flag & NCHG)
607		*flags++ = 'C';
608	if (flag == 0)
609		*flags++ = '-';
610	*flags = '\0';
611
612	(void)printf(" %6ld %5s", np->n_vattr.va_fileid, flagbuf);
613	type = np->n_vattr.va_mode & S_IFMT;
614	if (S_ISCHR(np->n_vattr.va_mode) || S_ISBLK(np->n_vattr.va_mode))
615		if (usenumflag ||
616		    ((name = devname(np->n_vattr.va_rdev, type)) == NULL))
617			(void)printf("   %2d,%-2d", major(np->n_vattr.va_rdev),
618			    minor(np->n_vattr.va_rdev));
619		else
620			(void)printf(" %7s", name);
621	else
622		(void)printf(" %7qd", np->n_size);
623	return (0);
624}
625
626/*
627 * Given a pointer to a mount structure in kernel space,
628 * read it in and return a usable pointer to it.
629 */
630struct mount *
631getmnt(struct mount *maddr)
632{
633	static struct mtab {
634		struct mtab *next;
635		struct mount *maddr;
636		struct mount mount;
637	} *mhead = NULL;
638	struct mtab *mt;
639
640	for (mt = mhead; mt != NULL; mt = mt->next)
641		if (maddr == mt->maddr)
642			return (&mt->mount);
643	if ((mt = malloc(sizeof(struct mtab))) == NULL)
644		err(1, "malloc: mount table");
645	KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table");
646	mt->maddr = maddr;
647	mt->next = mhead;
648	mhead = mt;
649	return (&mt->mount);
650}
651
652void
653mount_print(struct mount *mp)
654{
655	int flags;
656
657	(void)printf("*** MOUNT ");
658	(void)printf("%.*s %s on %s", MFSNAMELEN,
659	    mp->mnt_stat.f_fstypename, mp->mnt_stat.f_mntfromname,
660	    mp->mnt_stat.f_mntonname);
661	if ((flags = mp->mnt_flag)) {
662		char *comma = "(";
663
664		putchar(' ');
665		/* user visible flags */
666		if (flags & MNT_RDONLY) {
667			(void)printf("%srdonly", comma);
668			flags &= ~MNT_RDONLY;
669			comma = ",";
670		}
671		if (flags & MNT_SYNCHRONOUS) {
672			(void)printf("%ssynchronous", comma);
673			flags &= ~MNT_SYNCHRONOUS;
674			comma = ",";
675		}
676		if (flags & MNT_NOEXEC) {
677			(void)printf("%snoexec", comma);
678			flags &= ~MNT_NOEXEC;
679			comma = ",";
680		}
681		if (flags & MNT_NOSUID) {
682			(void)printf("%snosuid", comma);
683			flags &= ~MNT_NOSUID;
684			comma = ",";
685		}
686		if (flags & MNT_NODEV) {
687			(void)printf("%snodev", comma);
688			flags &= ~MNT_NODEV;
689			comma = ",";
690		}
691		if (flags & MNT_ASYNC) {
692			(void)printf("%sasync", comma);
693			flags &= ~MNT_ASYNC;
694			comma = ",";
695		}
696		if (flags & MNT_EXRDONLY) {
697			(void)printf("%sexrdonly", comma);
698			flags &= ~MNT_EXRDONLY;
699			comma = ",";
700		}
701		if (flags & MNT_EXPORTED) {
702			(void)printf("%sexport", comma);
703			flags &= ~MNT_EXPORTED;
704			comma = ",";
705		}
706		if (flags & MNT_DEFEXPORTED) {
707			(void)printf("%sdefdexported", comma);
708			flags &= ~MNT_DEFEXPORTED;
709			comma = ",";
710		}
711		if (flags & MNT_EXPORTANON) {
712			(void)printf("%sexportanon", comma);
713			flags &= ~MNT_EXPORTANON;
714			comma = ",";
715		}
716		if (flags & MNT_EXKERB) {
717			(void)printf("%sexkerb", comma);
718			flags &= ~MNT_EXKERB;
719			comma = ",";
720		}
721		if (flags & MNT_LOCAL) {
722			(void)printf("%slocal", comma);
723			flags &= ~MNT_LOCAL;
724			comma = ",";
725		}
726		if (flags & MNT_QUOTA) {
727			(void)printf("%squota", comma);
728			flags &= ~MNT_QUOTA;
729			comma = ",";
730		}
731		if (flags & MNT_ROOTFS) {
732			(void)printf("%srootfs", comma);
733			flags &= ~MNT_ROOTFS;
734			comma = ",";
735		}
736		if (flags & MNT_NOATIME) {
737			(void)printf("%snoatime", comma);
738			flags &= ~MNT_NOATIME;
739			comma = ",";
740		}
741		/* filesystem control flags */
742		if (flags & MNT_UPDATE) {
743			(void)printf("%supdate", comma);
744			flags &= ~MNT_UPDATE;
745			comma = ",";
746		}
747		if (flags & MNT_DELEXPORT) {
748			(void)printf("%sdelexport", comma);
749			flags &= ~MNT_DELEXPORT;
750			comma = ",";
751		}
752		if (flags & MNT_RELOAD) {
753			(void)printf("%sreload", comma);
754			flags &= ~MNT_RELOAD;
755			comma = ",";
756		}
757		if (flags & MNT_FORCE) {
758			(void)printf("%sforce", comma);
759			flags &= ~MNT_FORCE;
760			comma = ",";
761		}
762		if (flags & MNT_WANTRDWR) {
763			(void)printf("%swantrdwr", comma);
764			flags &= ~MNT_WANTRDWR;
765			comma = ",";
766		}
767		if (flags & MNT_SOFTDEP) {
768			(void)printf("%ssoftdep", comma);
769			flags &= ~MNT_SOFTDEP;
770			comma = ",";
771		}
772		if (flags)
773			(void)printf("%sunknown_flags:%x", comma, flags);
774		(void)printf(")");
775	}
776	(void)printf("\n");
777}
778
779struct e_vnode *
780loadvnodes(int *avnodes)
781{
782	int mib[2];
783	size_t copysize;
784	struct e_vnode *vnodebase;
785
786	if (memf != NULL) {
787		/*
788		 * do it by hand
789		 */
790		return (kinfo_vnodes(avnodes));
791	}
792	mib[0] = CTL_KERN;
793	mib[1] = KERN_VNODE;
794	if (sysctl(mib, 2, NULL, &copysize, NULL, 0) == -1)
795		err(1, "sysctl: KERN_VNODE");
796	if ((vnodebase = malloc(copysize)) == NULL)
797		err(1, "malloc: vnode table");
798	if (sysctl(mib, 2, vnodebase, &copysize, NULL, 0) == -1)
799		err(1, "sysctl: KERN_VNODE");
800	if (copysize % sizeof(struct e_vnode))
801		errx(1, "vnode size mismatch");
802	*avnodes = copysize / sizeof(struct e_vnode);
803
804	return (vnodebase);
805}
806
807/*
808 * simulate what a running kernel does in kinfo_vnode
809 */
810struct e_vnode *
811kinfo_vnodes(int *avnodes)
812{
813	struct mntlist kvm_mountlist;
814	struct mount *mp, mount;
815	struct vnode *vp, vnode;
816	char *vbuf, *evbuf, *bp;
817	int mib[2], numvnodes;
818	size_t num;
819
820	if (kd == 0) {
821		mib[0] = CTL_KERN;
822		mib[1] = KERN_NUMVNODES;
823		num = sizeof(numvnodes);
824		if (sysctl(mib, 2, &numvnodes, &num, NULL, 0) < 0)
825			err(1, "sysctl(KERN_NUMVNODES) failed");
826	} else
827		KGET(V_NUMV, numvnodes);
828	if ((vbuf = calloc(numvnodes + 20,
829	    sizeof(struct vnode *) + sizeof(struct vnode))) == NULL)
830		err(1, "malloc: vnode buffer");
831	bp = vbuf;
832	evbuf = vbuf + (numvnodes + 20) *
833	    (sizeof(struct vnode *) + sizeof(struct vnode));
834	KGET(V_MOUNTLIST, kvm_mountlist);
835	for (num = 0, mp = CIRCLEQ_FIRST(&kvm_mountlist); ;
836	    mp = CIRCLEQ_NEXT(&mount, mnt_list)) {
837		KGET2(mp, &mount, sizeof(mount), "mount entry");
838		for (vp = LIST_FIRST(&mount.mnt_vnodelist);
839		    vp != NULL; vp = LIST_NEXT(&vnode, v_mntvnodes)) {
840			KGET2(vp, &vnode, sizeof(vnode), "vnode");
841			if ((bp + sizeof(struct vnode *) +
842			    sizeof(struct vnode)) > evbuf)
843				/* XXX - should realloc */
844				errx(1, "no more room for vnodes");
845			memmove(bp, &vp, sizeof(struct vnode *));
846			bp += sizeof(struct vnode *);
847			memmove(bp, &vnode, sizeof(struct vnode));
848			bp += sizeof(struct vnode);
849			num++;
850		}
851		if (mp == CIRCLEQ_LAST(&kvm_mountlist))
852			break;
853	}
854	*avnodes = num;
855	return ((struct e_vnode *)vbuf);
856}
857
858const char hdr[] =
859"   LINE RAW  CAN  OUT  HWT LWT    COL STATE      SESS  PGID DISC\n";
860
861void
862tty2itty(struct tty *tp, struct itty *itp)
863{
864	itp->t_dev = tp->t_dev;
865	itp->t_rawq_c_cc = tp->t_rawq.c_cc;
866	itp->t_canq_c_cc = tp->t_canq.c_cc;
867	itp->t_outq_c_cc = tp->t_outq.c_cc;
868	itp->t_hiwat = tp->t_hiwat;
869	itp->t_lowat = tp->t_lowat;
870	itp->t_column = tp->t_column;
871	itp->t_state = tp->t_state;
872	itp->t_session = tp->t_session;
873	if (tp->t_pgrp != NULL)
874		KGET2(&tp->t_pgrp->pg_id, &itp->t_pgrp_pg_id, sizeof(pid_t), "pgid");
875	itp->t_line = tp->t_line;
876}
877
878void
879ttymode(void)
880{
881	struct ttylist_head tty_head;
882	struct tty *tp, tty;
883	int mib[3], ntty, i;
884	struct itty itty, *itp;
885	size_t nlen;
886
887	if (kd == 0) {
888		mib[0] = CTL_KERN;
889		mib[1] = KERN_TTYCOUNT;
890		nlen = sizeof(ntty);
891		if (sysctl(mib, 2, &ntty, &nlen, NULL, 0) < 0)
892			err(1, "sysctl(KERN_TTYCOUNT) failed");
893	} else
894		KGET(TTY_NTTY, ntty);
895	(void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s");
896	(void)printf("%s", hdr);
897	if (kd == 0) {
898		mib[0] = CTL_KERN;
899		mib[1] = KERN_TTY;
900		mib[2] = KERN_TTY_INFO;
901		nlen = ntty * sizeof(struct itty);
902		if ((itp = malloc(nlen)) == NULL)
903			err(1, "malloc");
904		if (sysctl(mib, 3, itp, &nlen, NULL, 0) < 0)
905			err(1, "sysctl(KERN_TTY_INFO) failed");
906		for (i = 0; i < ntty; i++)
907			ttyprt(&itp[i]);
908		free(itp);
909	} else {
910		KGET(TTY_TTYLIST, tty_head);
911		for (tp = TAILQ_FIRST(&tty_head); tp;
912		    tp = TAILQ_NEXT(&tty, tty_link)) {
913			KGET2(tp, &tty, sizeof tty, "tty struct");
914			tty2itty(&tty, &itty);
915			ttyprt(&itty);
916		}
917	}
918}
919
920struct {
921	int flag;
922	char val;
923} ttystates[] = {
924	{ TS_WOPEN,	'W'},
925	{ TS_ISOPEN,	'O'},
926	{ TS_CARR_ON,	'C'},
927	{ TS_TIMEOUT,	'T'},
928	{ TS_FLUSH,	'F'},
929	{ TS_BUSY,	'B'},
930	{ TS_ASLEEP,	'A'},
931	{ TS_XCLUDE,	'X'},
932	{ TS_TTSTOP,	'S'},
933	{ TS_TBLOCK,	'K'},
934	{ TS_ASYNC,	'Y'},
935	{ TS_BKSL,	'D'},
936	{ TS_ERASE,	'E'},
937	{ TS_LNCH,	'L'},
938	{ TS_TYPEN,	'P'},
939	{ TS_CNTTB,	'N'},
940	{ 0,		'\0'},
941};
942
943void
944ttyprt(struct itty *tp)
945{
946	char *name, state[20];
947	int i, j;
948
949	if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL)
950		(void)printf("%2d,%-3d   ", major(tp->t_dev), minor(tp->t_dev));
951	else
952		(void)printf("%7s ", name);
953	(void)printf("%3d %4d ", tp->t_rawq_c_cc, tp->t_canq_c_cc);
954	(void)printf("%4d %4d %3d %6d ", tp->t_outq_c_cc,
955		tp->t_hiwat, tp->t_lowat, tp->t_column);
956	for (i = j = 0; ttystates[i].flag; i++)
957		if (tp->t_state&ttystates[i].flag)
958			state[j++] = ttystates[i].val;
959	if (j == 0)
960		state[j++] = '-';
961	state[j] = '\0';
962	(void)printf("%-6s %8lx", state, (u_long)tp->t_session & ~KERNBASE);
963	(void)printf("%6d ", tp->t_pgrp_pg_id);
964	switch (tp->t_line) {
965	case TTYDISC:
966		(void)printf("term\n");
967		break;
968	case TABLDISC:
969		(void)printf("tab\n");
970		break;
971	case SLIPDISC:
972		(void)printf("slip\n");
973		break;
974	case PPPDISC:
975		(void)printf("ppp\n");
976		break;
977	case STRIPDISC:
978		(void)printf("strip\n");
979		break;
980	case NMEADISC:
981		(void)printf("nmea\n");
982		break;
983	default:
984		(void)printf("%d\n", tp->t_line);
985		break;
986	}
987}
988
989void
990filemode(void)
991{
992	struct file fp, *ffp, *addr;
993	char *buf, flagbuf[16], *fbp;
994	static char *dtypes[] = { "???", "inode", "socket" };
995	int mib[2], maxfile, nfile;
996	size_t len;
997
998	globalnl = vnodenl;
999
1000	if (kd == 0) {
1001		mib[0] = CTL_KERN;
1002		mib[1] = KERN_MAXFILES;
1003		len = sizeof(maxfile);
1004		if (sysctl(mib, 2, &maxfile, &len, NULL, 0) < 0)
1005			err(1, "sysctl(KERN_MAXFILES) failed");
1006		if (totalflag) {
1007			mib[0] = CTL_KERN;
1008			mib[1] = KERN_NFILES;
1009			len = sizeof(nfile);
1010			if (sysctl(mib, 2, &nfile, &len, NULL, 0) < 0)
1011				err(1, "sysctl(KERN_NFILES) failed");
1012		}
1013	} else {
1014		KGET(FNL_MAXFILE, maxfile);
1015		if (totalflag) {
1016			KGET(FNL_NFILE, nfile);
1017			(void)printf("%3d/%3d files\n", nfile, maxfile);
1018			return;
1019		}
1020	}
1021
1022	if (getfiles(&buf, &len) == -1)
1023		return;
1024	/*
1025	 * Getfiles returns in malloc'd memory a pointer to the first file
1026	 * structure, and then an array of file structs (whose addresses are
1027	 * derivable from the previous entry).
1028	 */
1029	addr = LIST_FIRST((struct filelist *)buf);
1030	ffp = (struct file *)(buf + sizeof(struct filelist));
1031	nfile = (len - sizeof(struct filelist)) / sizeof(struct file);
1032
1033	(void)printf("%d/%d open files\n", nfile, maxfile);
1034
1035	(void)printf("%*s TYPE       FLG  CNT  MSG  %*s  OFFSET\n",
1036	    2 * (int)sizeof(long), "LOC", 2 * (int)sizeof(long), "DATA");
1037	for (; (char *)ffp < buf + len; addr = LIST_NEXT(ffp, f_list), ffp++) {
1038		memmove(&fp, ffp, sizeof fp);
1039		if ((unsigned)fp.f_type > DTYPE_SOCKET)
1040			continue;
1041		(void)printf("%0*lx ", 2 * (int)sizeof(long), (long)addr);
1042		(void)printf("%-8.8s", dtypes[fp.f_type]);
1043		fbp = flagbuf;
1044		if (fp.f_flag & FREAD)
1045			*fbp++ = 'R';
1046		if (fp.f_flag & FWRITE)
1047			*fbp++ = 'W';
1048		if (fp.f_flag & FAPPEND)
1049			*fbp++ = 'A';
1050		if (fp.f_flag & FHASLOCK)
1051			*fbp++ = 'L';
1052		if (fp.f_flag & FASYNC)
1053			*fbp++ = 'I';
1054		*fbp = '\0';
1055		(void)printf("%6s  %3ld", flagbuf, fp.f_count);
1056		(void)printf("  %3ld", fp.f_msgcount);
1057		(void)printf("  %0*lx", 2 * (int)sizeof(long), (long)fp.f_data);
1058
1059		if (fp.f_offset == (off_t)-1)
1060			(void)printf("  *\n");
1061		else if (fp.f_offset < 0)
1062			(void)printf("  %llx\n", (long long)fp.f_offset);
1063		else
1064			(void)printf("  %lld\n", (long long)fp.f_offset);
1065	}
1066	free(buf);
1067}
1068
1069int
1070getfiles(char **abuf, size_t *alen)
1071{
1072	size_t len;
1073	int mib[2];
1074	char *buf;
1075
1076	/*
1077	 * XXX
1078	 * Add emulation of KINFO_FILE here.
1079	 */
1080	if (memf != NULL)
1081		errx(1, "files on dead kernel, not implemented");
1082
1083	mib[0] = CTL_KERN;
1084	mib[1] = KERN_FILE;
1085	if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) {
1086		warn("sysctl: KERN_FILE");
1087		return (-1);
1088	}
1089	if ((buf = malloc(len)) == NULL)
1090		err(1, "malloc: KERN_FILE");
1091	if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) {
1092		warn("sysctl: KERN_FILE");
1093		free(buf);
1094		return (-1);
1095	}
1096	*abuf = buf;
1097	*alen = len;
1098	return (0);
1099}
1100
1101/*
1102 * swapmode is based on a program called swapinfo written
1103 * by Kevin Lahey <kml@rokkaku.atl.ga.us>.
1104 */
1105void
1106swapmode(void)
1107{
1108	char *header;
1109	int hlen = 10, nswap;
1110	int bdiv, i, avail, nfree, npfree, used;
1111	long blocksize;
1112	struct swapent *swdev;
1113
1114	if (kflag) {
1115		header = "1K-blocks";
1116		blocksize = 1024;
1117		hlen = strlen(header);
1118	} else
1119		header = getbsize(&hlen, &blocksize);
1120
1121	nswap = swapctl(SWAP_NSWAP, 0, 0);
1122	if (nswap == 0) {
1123		if (!totalflag)
1124			(void)printf("%-11s %*s %8s %8s %8s  %s\n",
1125			    "Device", hlen, header,
1126			    "Used", "Avail", "Capacity", "Priority");
1127		(void)printf("%-11s %*d %8d %8d %5.0f%%\n",
1128		    "Total", hlen, 0, 0, 0, 0.0);
1129		return;
1130	}
1131	if ((swdev = calloc(nswap, sizeof(*swdev))) == NULL)
1132		err(1, "malloc");
1133	if (swapctl(SWAP_STATS, swdev, nswap) == -1)
1134		err(1, "swapctl");
1135
1136	if (!totalflag)
1137		(void)printf("%-11s %*s %8s %8s %8s  %s\n",
1138		    "Device", hlen, header,
1139		    "Used", "Avail", "Capacity", "Priority");
1140
1141	/* Run through swap list, doing the funky monkey. */
1142	bdiv = blocksize / DEV_BSIZE;
1143	avail = nfree = npfree = 0;
1144	for (i = 0; i < nswap; i++) {
1145		int xsize, xfree;
1146
1147		if (!(swdev[i].se_flags & SWF_ENABLE))
1148			continue;
1149
1150		if (!totalflag) {
1151			if (usenumflag)
1152				(void)printf("%2d,%-2d       %*d ",
1153				    major(swdev[i].se_dev),
1154				    minor(swdev[i].se_dev),
1155				    hlen, swdev[i].se_nblks / bdiv);
1156			else
1157				(void)printf("%-11s %*d ", swdev[i].se_path,
1158				    hlen, swdev[i].se_nblks / bdiv);
1159		}
1160
1161		xsize = swdev[i].se_nblks;
1162		used = swdev[i].se_inuse;
1163		xfree = xsize - used;
1164		nfree += (xsize - used);
1165		npfree++;
1166		avail += xsize;
1167		if (totalflag)
1168			continue;
1169		(void)printf("%8d %8d %5.0f%%    %d\n",
1170		    used / bdiv, xfree / bdiv,
1171		    (double)used / (double)xsize * 100.0,
1172		    swdev[i].se_priority);
1173	}
1174	free(swdev);
1175
1176	/*
1177	 * If only one partition has been set up via swapon(8), we don't
1178	 * need to bother with totals.
1179	 */
1180	used = avail - nfree;
1181	if (totalflag) {
1182		(void)printf("%dM/%dM swap space\n",
1183		    used / (1048576 / DEV_BSIZE),
1184		    avail / (1048576 / DEV_BSIZE));
1185		return;
1186	}
1187	if (npfree > 1) {
1188		(void)printf("%-11s %*d %8d %8d %5.0f%%\n",
1189		    "Total", hlen, avail / bdiv, used / bdiv, nfree / bdiv,
1190		    (double)used / (double)avail * 100.0);
1191	}
1192}
1193
1194void
1195usage(void)
1196{
1197	(void)fprintf(stderr, "usage: "
1198	    "pstat [-fknsTtv] [-d format] [-M core] [-N system] [symbols]\n");
1199	exit(1);
1200}
1201