pstat.c revision 1.115 
1/*	$OpenBSD: pstat.c,v 1.115 2018/06/02 10:28:52 mpi 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#include <sys/param.h>	/* MAXCOMLEN DEV_BSIZE */
34#include <sys/types.h>
35#include <sys/proc.h>
36#include <sys/time.h>
37#include <sys/vnode.h>
38#include <sys/ucred.h>
39#include <sys/stat.h>
40#define _KERNEL
41#include <sys/file.h>
42#include <ufs/ufs/quota.h>
43#include <ufs/ufs/inode.h>
44#include <sys/mount.h>
45#undef _KERNEL
46#include <nfs/nfsproto.h>
47#include <nfs/rpcv2.h>
48#include <nfs/nfsnode.h>
49#include <sys/ioctl.h>
50#include <sys/tty.h>
51#include <sys/conf.h>
52#include <sys/device.h>
53#include <sys/swap.h>
54
55#include <sys/sysctl.h>
56
57#include <stdint.h>
58#include <endian.h>
59#include <err.h>
60#include <fcntl.h>
61#include <kvm.h>
62#include <limits.h>
63#include <nlist.h>
64#include <paths.h>
65#include <stdio.h>
66#include <stdlib.h>
67#include <string.h>
68#include <unistd.h>
69
70struct nlist vnodenl[] = {
71#define	FNL_NFILE	0		/* sysctl */
72	{"_nfiles"},
73#define FNL_MAXFILE	1		/* sysctl */
74	{"_maxfiles"},
75#define TTY_NTTY	2		/* sysctl */
76	{"_tty_count"},
77#define V_NUMV		3		/* sysctl */
78	{ "_numvnodes" },
79#define TTY_TTYLIST	4		/* sysctl */
80	{"_ttylist"},
81#define	V_MOUNTLIST	5		/* no sysctl */
82	{ "_mountlist" },
83	{ NULL }
84};
85
86struct itty *globalitp;
87struct kinfo_file *kf;
88struct nlist *globalnl;
89
90struct e_vnode {
91	struct vnode *vptr;
92	struct vnode vnode;
93};
94
95int	kflag;
96int	totalflag;
97int	usenumflag;
98int	hideroot;
99int	maxfile;
100int	need_nlist;
101int	nfile;
102int	ntty;
103int	numvnodes;
104char	*nlistf	= NULL;
105char	*memf	= NULL;
106kvm_t	*kd = NULL;
107
108#define	SVAR(var) __STRING(var)	/* to force expansion */
109#define	KGET(idx, var)							\
110	KGET1(idx, &var, sizeof(var), SVAR(var))
111#define	KGET1(idx, p, s, msg)						\
112	KGET2(globalnl[idx].n_value, p, s, msg)
113#define	KGET2(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#define	KGETRET(addr, p, s, msg)					\
117	if (kvm_read(kd, (u_long)(addr), p, s) != s) {			\
118		warnx("cannot read %s: %s", msg, kvm_geterr(kd));	\
119		return (0);						\
120	}
121
122void	filemode(void);
123void	filemodeprep(void);
124struct mount *
125	getmnt(struct mount *);
126struct e_vnode *
127	kinfo_vnodes(void);
128void	mount_print(struct mount *);
129void	nfs_header(void);
130int	nfs_print(struct vnode *);
131void	swapmode(void);
132void	ttymode(void);
133void	ttymodeprep(void);
134void	ttyprt(struct itty *);
135void	tty2itty(struct tty *tp, struct itty *itp);
136void	ufs_header(void);
137int	ufs_print(struct vnode *);
138void	ext2fs_header(void);
139int	ext2fs_print(struct vnode *);
140static void __dead	usage(void);
141void	vnode_header(void);
142void	vnode_print(struct vnode *, struct vnode *);
143void	vnodemode(void);
144void	vnodemodeprep(void);
145
146
147int
148main(int argc, char *argv[])
149{
150	int fileflag = 0, swapflag = 0, ttyflag = 0, vnodeflag = 0, ch;
151	char buf[_POSIX2_LINE_MAX];
152	const char *dformat = NULL;
153	extern char *optarg;
154	extern int optind;
155	int i;
156
157	hideroot = getuid();
158
159	while ((ch = getopt(argc, argv, "d:TM:N:fiknstv")) != -1)
160		switch (ch) {
161		case 'd':
162			dformat = optarg;
163			break;
164		case 'f':
165			fileflag = 1;
166			break;
167		case 'M':
168			memf = optarg;
169			break;
170		case 'N':
171			nlistf = optarg;
172			break;
173		case 'n':
174			usenumflag = 1;
175			break;
176		case 's':
177			swapflag = 1;
178			break;
179		case 'T':
180			totalflag = 1;
181			break;
182		case 't':
183			ttyflag = 1;
184			break;
185		case 'k':
186			kflag = 1;
187			break;
188		case 'v':
189		case 'i':		/* Backward compatibility. */
190			vnodeflag = 1;
191			break;
192		default:
193			usage();
194		}
195	argc -= optind;
196	argv += optind;
197
198	if (dformat && getuid())
199		errx(1, "Only root can use -d");
200
201	if ((dformat == NULL && argc > 0) || (dformat && argc == 0))
202		usage();
203
204	need_nlist = dformat || vnodeflag;
205
206	if (nlistf != NULL || memf != NULL) {
207		if (fileflag || totalflag)
208			need_nlist = 1;
209	}
210
211	if (vnodeflag || fileflag || dformat || need_nlist)
212		if ((kd = kvm_openfiles(nlistf, memf, NULL,
213		    O_RDONLY | (need_nlist ? 0 : KVM_NO_FILES), buf)) == 0)
214			errx(1, "kvm_openfiles: %s", buf);
215
216	if (need_nlist)
217		if (kvm_nlist(kd, vnodenl) == -1)
218			errx(1, "kvm_nlist: %s", kvm_geterr(kd));
219
220	if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag || dformat))
221		usage();
222
223	if(!dformat) {
224		if (fileflag || totalflag)
225			filemodeprep();
226		if (vnodeflag || totalflag)
227			vnodemodeprep();
228		if (ttyflag)
229			ttymodeprep();
230	}
231
232	if (pledge("stdio rpath vminfo", NULL) == -1)
233		err(1, "pledge");
234
235	if (dformat) {
236		struct nlist *nl;
237		int longformat = 0, stringformat = 0, error = 0, n;
238		uint32_t mask = ~0;
239		char format[10], buf[1024];
240
241		n = strlen(dformat);
242		if (n == 0)
243			errx(1, "illegal format");
244
245		/*
246		 * Support p, c, s, and {l, ll, h, hh, j, t, z, }[diouxX]
247		 */
248		if (strcmp(dformat, "p") == 0)
249			longformat = sizeof(long) == 8;
250		else if (strcmp(dformat, "c") == 0)
251			mask = 0xff;
252		else if (strcmp(dformat, "s") == 0)
253			stringformat = 1;
254		else if (strchr("diouxX", dformat[n - 1])) {
255			char *ptbl[]= {"l", "ll", "h", "hh", "j", "t", "z", ""};
256			int i;
257
258			char *mod;
259			for (i = 0; i < sizeof(ptbl)/sizeof(ptbl[0]); i++) {
260				mod = ptbl[i];
261				if (strlen(mod) == n - 1 &&
262				    strncmp(mod, dformat, strlen(mod)) == 0)
263					break;
264			}
265			if (i == sizeof(ptbl)/sizeof(ptbl[0])
266			    && dformat[1] != '\0')
267				errx(1, "illegal format");
268			if (strcmp(mod, "l") == 0)
269				longformat = sizeof(long) == sizeof(long long);
270			else if (strcmp(mod, "h") == 0)
271				mask = 0xffff;
272			else if (strcmp(mod, "hh") == 0)
273				mask = 0xff;
274			else if (strcmp(mod, "") != 0)
275				longformat = 1;
276
277		} else
278			errx(1, "illegal format");
279
280		if (*dformat == 's') {
281			stringformat = 1;
282			snprintf(format, sizeof(format), "%%.%zus",
283			    sizeof buf);
284		} else
285			snprintf(format, sizeof(format), "%%%s", dformat);
286
287		nl = calloc(argc + 1, sizeof *nl);
288		if (!nl)
289			err(1, "calloc nl: ");
290		for (i = 0; i < argc; i++) {
291			if (asprintf(&nl[i].n_name, "_%s",
292			    argv[i]) == -1)
293				warn("asprintf");
294		}
295		kvm_nlist(kd, nl);
296		globalnl = nl;
297		for (i = 0; i < argc; i++) {
298			uint64_t v;
299
300			printf("%s ", argv[i]);
301			if (!nl[i].n_value && argv[i][0] == '0') {
302				nl[i].n_value = strtoul(argv[i], NULL, 16);
303				nl[i].n_type = N_DATA;
304			}
305			if (!nl[i].n_value) {
306				printf("not found\n");
307				error++;
308				continue;
309			}
310
311			printf("at %p: ", (void *)nl[i].n_value);
312			if ((nl[i].n_type & N_TYPE) == N_DATA ||
313			    (nl[i].n_type & N_TYPE) == N_COMM) {
314				if (stringformat) {
315					KGET1(i, &buf, sizeof(buf), argv[i]);
316					buf[sizeof(buf) - 1] = '\0';
317				} else
318					KGET1(i, &v, sizeof(v), argv[i]);
319				if (stringformat)
320					printf(format, &buf);
321				else if (longformat)
322					printf(format, v);
323				else {
324#if BYTE_ORDER == BIG_ENDIAN
325					switch (mask) {
326					case 0xff:
327						v >>= 8;
328						/* FALLTHROUGH */
329					case 0xffff:
330						v >>= 16;
331						/* FALLTHROUGH */
332					case 0xffffffff:
333						v >>= 32;
334						break;
335					}
336#endif
337					printf(format, ((uint32_t)v) & mask);
338				}
339			}
340			printf("\n");
341		}
342		for (i = 0; i < argc; i++)
343			free(nl[i].n_name);
344		free(nl);
345		return error;
346	}
347
348	if (fileflag || totalflag)
349		filemode();
350	if (vnodeflag || totalflag)
351		vnodemode();
352	if (ttyflag)
353		ttymode();
354	if (swapflag || totalflag)
355		swapmode();
356	return 0;
357}
358
359void
360vnodemode(void)
361{
362	struct e_vnode *e_vnodebase, *endvnode, *evp;
363	struct vnode *vp;
364	struct mount *maddr, *mp = NULL;
365
366	globalnl = vnodenl;
367
368	e_vnodebase = kinfo_vnodes();
369	if (totalflag) {
370		(void)printf("%7d vnodes\n", numvnodes);
371		return;
372	}
373	if (!e_vnodebase)
374		return;
375	endvnode = e_vnodebase + numvnodes;
376	(void)printf("%d active vnodes\n", numvnodes);
377
378	maddr = NULL;
379	for (evp = e_vnodebase; evp < endvnode; evp++) {
380		vp = &evp->vnode;
381		if (vp->v_mount != maddr) {
382			/*
383			 * New filesystem
384			 */
385			if ((mp = getmnt(vp->v_mount)) == NULL)
386				continue;
387			maddr = vp->v_mount;
388			mount_print(mp);
389			vnode_header();
390			if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_FFS, MFSNAMELEN) ||
391			    !strncmp(mp->mnt_stat.f_fstypename, MOUNT_MFS, MFSNAMELEN)) {
392				ufs_header();
393			} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_NFS,
394			    MFSNAMELEN)) {
395				nfs_header();
396			} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_EXT2FS,
397			    MFSNAMELEN)) {
398				ext2fs_header();
399			}
400			(void)printf("\n");
401		}
402		vnode_print(evp->vptr, vp);
403
404		/* Syncer vnodes have no associated fs-specific data */
405		if (vp->v_data == NULL) {
406			printf(" %6c %5c %7c\n", '-', '-', '-');
407			continue;
408		}
409
410		if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_FFS, MFSNAMELEN) ||
411		    !strncmp(mp->mnt_stat.f_fstypename, MOUNT_MFS, MFSNAMELEN)) {
412			ufs_print(vp);
413		} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_NFS, MFSNAMELEN)) {
414			nfs_print(vp);
415		} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_EXT2FS,
416		    MFSNAMELEN)) {
417			ext2fs_print(vp);
418		}
419		(void)printf("\n");
420	}
421	free(e_vnodebase);
422}
423
424void
425vnodemodeprep(void)
426{
427	int mib[2];
428	size_t num;
429
430	if (kd == NULL) {
431		mib[0] = CTL_KERN;
432		mib[1] = KERN_NUMVNODES;
433		num = sizeof(numvnodes);
434		if (sysctl(mib, 2, &numvnodes, &num, NULL, 0) < 0)
435			err(1, "sysctl(KERN_NUMVNODES) failed");
436	}
437}
438
439void
440vnode_header(void)
441{
442	(void)printf("%*s TYP VFLAG  USE HOLD", 2 * (int)sizeof(long), "ADDR");
443}
444
445void
446vnode_print(struct vnode *avnode, struct vnode *vp)
447{
448	char *type, flags[16];
449	char *fp;
450	int flag;
451
452	/*
453	 * set type
454	 */
455	switch (vp->v_type) {
456	case VNON:
457		type = "non"; break;
458	case VREG:
459		type = "reg"; break;
460	case VDIR:
461		type = "dir"; break;
462	case VBLK:
463		type = "blk"; break;
464	case VCHR:
465		type = "chr"; break;
466	case VLNK:
467		type = "lnk"; break;
468	case VSOCK:
469		type = "soc"; break;
470	case VFIFO:
471		type = "fif"; break;
472	case VBAD:
473		type = "bad"; break;
474	default:
475		type = "unk"; break;
476	}
477	/*
478	 * gather flags
479	 */
480	fp = flags;
481	flag = vp->v_flag;
482	if (flag & VROOT)
483		*fp++ = 'R';
484	if (flag & VTEXT)
485		*fp++ = 'T';
486	if (flag & VSYSTEM)
487		*fp++ = 'S';
488	if (flag & VISTTY)
489		*fp++ = 'I';
490	if (flag & VXLOCK)
491		*fp++ = 'L';
492	if (flag & VXWANT)
493		*fp++ = 'W';
494	if (vp->v_bioflag & VBIOWAIT)
495		*fp++ = 'B';
496	if (flag & VALIASED)
497		*fp++ = 'A';
498	if (vp->v_bioflag & VBIOONFREELIST)
499		*fp++ = 'F';
500	if (flag & VLOCKSWORK)
501		*fp++ = 'l';
502	if (vp->v_bioflag & VBIOONSYNCLIST)
503		*fp++ = 's';
504	if (fp == flags)
505		*fp++ = '-';
506	*fp = '\0';
507	(void)printf("%0*lx %s %5s %4d %4u",
508	    2 * (int)sizeof(long), hideroot ? 0L : (long)avnode,
509	    type, flags, vp->v_usecount, vp->v_holdcnt);
510}
511
512void
513ufs_header(void)
514{
515	(void)printf(" FILEID IFLAG RDEV|SZ");
516}
517
518int
519ufs_print(struct vnode *vp)
520{
521	int flag;
522	struct inode inode, *ip = &inode;
523	struct ufs1_dinode di1;
524	char flagbuf[16], *flags = flagbuf;
525	char *name;
526	mode_t type;
527
528	KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
529	KGETRET(inode.i_din1, &di1, sizeof(struct ufs1_dinode),
530	    "vnode's dinode");
531
532	inode.i_din1 = &di1;
533	flag = ip->i_flag;
534#if 0
535	if (flag & IN_LOCKED)
536		*flags++ = 'L';
537	if (flag & IN_WANTED)
538		*flags++ = 'W';
539	if (flag & IN_LWAIT)
540		*flags++ = 'Z';
541#endif
542	if (flag & IN_ACCESS)
543		*flags++ = 'A';
544	if (flag & IN_CHANGE)
545		*flags++ = 'C';
546	if (flag & IN_UPDATE)
547		*flags++ = 'U';
548	if (flag & IN_MODIFIED)
549		*flags++ = 'M';
550	if (flag & IN_LAZYMOD)
551		*flags++ = 'm';
552	if (flag & IN_RENAME)
553		*flags++ = 'R';
554	if (flag & IN_SHLOCK)
555		*flags++ = 'S';
556	if (flag & IN_EXLOCK)
557		*flags++ = 'E';
558	if (flag == 0)
559		*flags++ = '-';
560	*flags = '\0';
561
562	(void)printf(" %6d %5s", ip->i_number, flagbuf);
563	type = ip->i_ffs1_mode & S_IFMT;
564	if (S_ISCHR(ip->i_ffs1_mode) || S_ISBLK(ip->i_ffs1_mode))
565		if (usenumflag ||
566		    ((name = devname(ip->i_ffs1_rdev, type)) == NULL))
567			(void)printf("   %2d,%-2d",
568			    major(ip->i_ffs1_rdev), minor(ip->i_ffs1_rdev));
569		else
570			(void)printf(" %7s", name);
571	else
572		(void)printf(" %7lld", (long long)ip->i_ffs1_size);
573	return (0);
574}
575
576void
577ext2fs_header(void)
578{
579	(void)printf(" FILEID IFLAG SZ");
580}
581
582int
583ext2fs_print(struct vnode *vp)
584{
585	int flag;
586	struct inode inode, *ip = &inode;
587	struct ext2fs_dinode di;
588	char flagbuf[16], *flags = flagbuf;
589
590	KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
591	KGETRET(inode.i_e2din, &di, sizeof(struct ext2fs_dinode),
592	    "vnode's dinode");
593
594	inode.i_e2din = &di;
595	flag = ip->i_flag;
596
597#if 0
598	if (flag & IN_LOCKED)
599		*flags++ = 'L';
600	if (flag & IN_WANTED)
601		*flags++ = 'W';
602	if (flag & IN_LWAIT)
603		*flags++ = 'Z';
604#endif
605	if (flag & IN_ACCESS)
606		*flags++ = 'A';
607	if (flag & IN_CHANGE)
608		*flags++ = 'C';
609	if (flag & IN_UPDATE)
610		*flags++ = 'U';
611	if (flag & IN_MODIFIED)
612		*flags++ = 'M';
613	if (flag & IN_RENAME)
614		*flags++ = 'R';
615	if (flag & IN_SHLOCK)
616		*flags++ = 'S';
617	if (flag & IN_EXLOCK)
618		*flags++ = 'E';
619	if (flag == 0)
620		*flags++ = '-';
621	*flags = '\0';
622
623	(void)printf(" %6d %5s %2d", ip->i_number, flagbuf, ip->i_e2fs_size);
624	return (0);
625}
626
627void
628nfs_header(void)
629{
630	(void)printf(" FILEID NFLAG RDEV|SZ");
631}
632
633int
634nfs_print(struct vnode *vp)
635{
636	struct nfsnode nfsnode, *np = &nfsnode;
637	char flagbuf[16], *flags = flagbuf;
638	int flag;
639	char *name;
640	mode_t type;
641
642	KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode");
643	flag = np->n_flag;
644	if (flag & NFLUSHWANT)
645		*flags++ = 'W';
646	if (flag & NFLUSHINPROG)
647		*flags++ = 'P';
648	if (flag & NMODIFIED)
649		*flags++ = 'M';
650	if (flag & NWRITEERR)
651		*flags++ = 'E';
652	if (flag & NACC)
653		*flags++ = 'A';
654	if (flag & NUPD)
655		*flags++ = 'U';
656	if (flag & NCHG)
657		*flags++ = 'C';
658	if (flag == 0)
659		*flags++ = '-';
660	*flags = '\0';
661
662	(void)printf(" %6lld %5s", (long long)np->n_vattr.va_fileid, flagbuf);
663	type = np->n_vattr.va_mode & S_IFMT;
664	if (S_ISCHR(np->n_vattr.va_mode) || S_ISBLK(np->n_vattr.va_mode))
665		if (usenumflag ||
666		    ((name = devname(np->n_vattr.va_rdev, type)) == NULL))
667			(void)printf("   %2d,%-2d", major(np->n_vattr.va_rdev),
668			    minor(np->n_vattr.va_rdev));
669		else
670			(void)printf(" %7s", name);
671	else
672		(void)printf(" %7lld", (long long)np->n_size);
673	return (0);
674}
675
676/*
677 * Given a pointer to a mount structure in kernel space,
678 * read it in and return a usable pointer to it.
679 */
680struct mount *
681getmnt(struct mount *maddr)
682{
683	static struct mtab {
684		struct mtab *next;
685		struct mount *maddr;
686		struct mount mount;
687	} *mhead = NULL;
688	struct mtab *mt;
689
690	for (mt = mhead; mt != NULL; mt = mt->next)
691		if (maddr == mt->maddr)
692			return (&mt->mount);
693	if ((mt = malloc(sizeof(struct mtab))) == NULL)
694		err(1, "malloc: mount table");
695	KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table");
696	mt->maddr = maddr;
697	mt->next = mhead;
698	mhead = mt;
699	return (&mt->mount);
700}
701
702void
703mount_print(struct mount *mp)
704{
705	int flags;
706
707	(void)printf("*** MOUNT ");
708	(void)printf("%.*s %s on %s", MFSNAMELEN,
709	    mp->mnt_stat.f_fstypename, mp->mnt_stat.f_mntfromname,
710	    mp->mnt_stat.f_mntonname);
711	if ((flags = mp->mnt_flag)) {
712		char *comma = "(";
713
714		putchar(' ');
715		/* user visible flags */
716		if (flags & MNT_RDONLY) {
717			(void)printf("%srdonly", comma);
718			flags &= ~MNT_RDONLY;
719			comma = ",";
720		}
721		if (flags & MNT_SYNCHRONOUS) {
722			(void)printf("%ssynchronous", comma);
723			flags &= ~MNT_SYNCHRONOUS;
724			comma = ",";
725		}
726		if (flags & MNT_NOEXEC) {
727			(void)printf("%snoexec", comma);
728			flags &= ~MNT_NOEXEC;
729			comma = ",";
730		}
731		if (flags & MNT_NOSUID) {
732			(void)printf("%snosuid", comma);
733			flags &= ~MNT_NOSUID;
734			comma = ",";
735		}
736		if (flags & MNT_NODEV) {
737			(void)printf("%snodev", comma);
738			flags &= ~MNT_NODEV;
739			comma = ",";
740		}
741		if (flags & MNT_ASYNC) {
742			(void)printf("%sasync", comma);
743			flags &= ~MNT_ASYNC;
744			comma = ",";
745		}
746		if (flags & MNT_EXRDONLY) {
747			(void)printf("%sexrdonly", comma);
748			flags &= ~MNT_EXRDONLY;
749			comma = ",";
750		}
751		if (flags & MNT_EXPORTED) {
752			(void)printf("%sexport", comma);
753			flags &= ~MNT_EXPORTED;
754			comma = ",";
755		}
756		if (flags & MNT_DEFEXPORTED) {
757			(void)printf("%sdefdexported", comma);
758			flags &= ~MNT_DEFEXPORTED;
759			comma = ",";
760		}
761		if (flags & MNT_EXPORTANON) {
762			(void)printf("%sexportanon", comma);
763			flags &= ~MNT_EXPORTANON;
764			comma = ",";
765		}
766		if (flags & MNT_WXALLOWED) {
767			(void)printf("%swxallowed", comma);
768			flags &= ~MNT_WXALLOWED;
769			comma = ",";
770		}
771		if (flags & MNT_LOCAL) {
772			(void)printf("%slocal", comma);
773			flags &= ~MNT_LOCAL;
774			comma = ",";
775		}
776		if (flags & MNT_QUOTA) {
777			(void)printf("%squota", comma);
778			flags &= ~MNT_QUOTA;
779			comma = ",";
780		}
781		if (flags & MNT_ROOTFS) {
782			(void)printf("%srootfs", comma);
783			flags &= ~MNT_ROOTFS;
784			comma = ",";
785		}
786		if (flags & MNT_NOATIME) {
787			(void)printf("%snoatime", comma);
788			flags &= ~MNT_NOATIME;
789			comma = ",";
790		}
791		/* filesystem control flags */
792		if (flags & MNT_UPDATE) {
793			(void)printf("%supdate", comma);
794			flags &= ~MNT_UPDATE;
795			comma = ",";
796		}
797		if (flags & MNT_DELEXPORT) {
798			(void)printf("%sdelexport", comma);
799			flags &= ~MNT_DELEXPORT;
800			comma = ",";
801		}
802		if (flags & MNT_RELOAD) {
803			(void)printf("%sreload", comma);
804			flags &= ~MNT_RELOAD;
805			comma = ",";
806		}
807		if (flags & MNT_FORCE) {
808			(void)printf("%sforce", comma);
809			flags &= ~MNT_FORCE;
810			comma = ",";
811		}
812		if (flags & MNT_WANTRDWR) {
813			(void)printf("%swantrdwr", comma);
814			flags &= ~MNT_WANTRDWR;
815			comma = ",";
816		}
817		if (flags & MNT_SOFTDEP) {
818			(void)printf("%ssoftdep", comma);
819			flags &= ~MNT_SOFTDEP;
820			comma = ",";
821		}
822		if (flags)
823			(void)printf("%sunknown_flags:%x", comma, flags);
824		(void)printf(")");
825	}
826	(void)printf("\n");
827}
828
829/*
830 * simulate what a running kernel does in kinfo_vnode
831 */
832struct e_vnode *
833kinfo_vnodes(void)
834{
835	struct mntlist kvm_mountlist;
836	struct mount *mp, mount;
837	struct vnode *vp, vnode;
838	char *vbuf, *evbuf, *bp;
839	size_t num;
840
841	if (kd != NULL)
842		KGET(V_NUMV, numvnodes);
843	if (totalflag)
844		return NULL;
845	if ((vbuf = calloc(numvnodes + 20,
846	    sizeof(struct vnode *) + sizeof(struct vnode))) == NULL)
847		err(1, "malloc: vnode buffer");
848	bp = vbuf;
849	evbuf = vbuf + (numvnodes + 20) *
850	    (sizeof(struct vnode *) + sizeof(struct vnode));
851	KGET(V_MOUNTLIST, kvm_mountlist);
852	num = 0;
853	for (mp = TAILQ_FIRST(&kvm_mountlist); mp != NULL;
854	    mp = TAILQ_NEXT(&mount, mnt_list)) {
855		KGETRET(mp, &mount, sizeof(mount), "mount entry");
856		for (vp = LIST_FIRST(&mount.mnt_vnodelist);
857		    vp != NULL; vp = LIST_NEXT(&vnode, v_mntvnodes)) {
858			KGETRET(vp, &vnode, sizeof(vnode), "vnode");
859			if ((bp + sizeof(struct vnode *) +
860			    sizeof(struct vnode)) > evbuf)
861				/* XXX - should realloc */
862				errx(1, "no more room for vnodes");
863			memmove(bp, &vp, sizeof(struct vnode *));
864			bp += sizeof(struct vnode *);
865			memmove(bp, &vnode, sizeof(struct vnode));
866			bp += sizeof(struct vnode);
867			num++;
868		}
869	}
870	numvnodes = num;
871	return ((struct e_vnode *)vbuf);
872}
873
874const char hdr[] =
875"   LINE RAW  CAN  OUT  HWT LWT    COL STATE      SESS  PGID DISC\n";
876
877void
878tty2itty(struct tty *tp, struct itty *itp)
879{
880	itp->t_dev = tp->t_dev;
881	itp->t_rawq_c_cc = tp->t_rawq.c_cc;
882	itp->t_canq_c_cc = tp->t_canq.c_cc;
883	itp->t_outq_c_cc = tp->t_outq.c_cc;
884	itp->t_hiwat = tp->t_hiwat;
885	itp->t_lowat = tp->t_lowat;
886	itp->t_column = tp->t_column;
887	itp->t_state = tp->t_state;
888	itp->t_session = tp->t_session;
889	if (tp->t_pgrp != NULL)
890		KGET2(&tp->t_pgrp->pg_id, &itp->t_pgrp_pg_id, sizeof(pid_t), "pgid");
891	itp->t_line = tp->t_line;
892}
893
894void
895ttymode(void)
896{
897	struct ttylist_head tty_head;
898	struct tty *tp, tty;
899	int i;
900	struct itty itty;
901
902	if (need_nlist)
903		KGET(TTY_NTTY, ntty);
904	(void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s");
905	(void)printf("%s", hdr);
906	if (!need_nlist) {
907		for (i = 0; i < ntty; i++)
908			ttyprt(&globalitp[i]);
909		free(globalitp);
910	} else {
911		KGET(TTY_TTYLIST, tty_head);
912		for (tp = TAILQ_FIRST(&tty_head); tp;
913		    tp = TAILQ_NEXT(&tty, tty_link)) {
914			KGET2(tp, &tty, sizeof tty, "tty struct");
915			tty2itty(&tty, &itty);
916			ttyprt(&itty);
917		}
918	}
919}
920
921void
922ttymodeprep(void)
923{
924	int mib[3];
925	size_t nlen;
926
927	if (!need_nlist) {
928		mib[0] = CTL_KERN;
929		mib[1] = KERN_TTYCOUNT;
930		nlen = sizeof(ntty);
931		if (sysctl(mib, 2, &ntty, &nlen, NULL, 0) < 0)
932			err(1, "sysctl(KERN_TTYCOUNT) failed");
933
934		mib[0] = CTL_KERN;
935		mib[1] = KERN_TTY;
936		mib[2] = KERN_TTY_INFO;
937		if ((globalitp = reallocarray(NULL, ntty, sizeof(struct itty))) == NULL)
938			err(1, "malloc");
939		nlen = ntty * sizeof(struct itty);
940		if (sysctl(mib, 3, globalitp, &nlen, NULL, 0) < 0)
941			err(1, "sysctl(KERN_TTY_INFO) failed");
942	}
943}
944
945struct {
946	int flag;
947	char val;
948} ttystates[] = {
949	{ TS_WOPEN,	'W'},
950	{ TS_ISOPEN,	'O'},
951	{ TS_CARR_ON,	'C'},
952	{ TS_TIMEOUT,	'T'},
953	{ TS_FLUSH,	'F'},
954	{ TS_BUSY,	'B'},
955	{ TS_ASLEEP,	'A'},
956	{ TS_XCLUDE,	'X'},
957	{ TS_TTSTOP,	'S'},
958	{ TS_TBLOCK,	'K'},
959	{ TS_ASYNC,	'Y'},
960	{ TS_BKSL,	'D'},
961	{ TS_ERASE,	'E'},
962	{ TS_LNCH,	'L'},
963	{ TS_TYPEN,	'P'},
964	{ TS_CNTTB,	'N'},
965	{ 0,		'\0'},
966};
967
968void
969ttyprt(struct itty *tp)
970{
971	char *name, state[20];
972	int i, j;
973
974	if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL)
975		(void)printf("%2d,%-3d   ", major(tp->t_dev), minor(tp->t_dev));
976	else
977		(void)printf("%7s ", name);
978	(void)printf("%3d %4d ", tp->t_rawq_c_cc, tp->t_canq_c_cc);
979	(void)printf("%4d %4d %3d %6d ", tp->t_outq_c_cc,
980		tp->t_hiwat, tp->t_lowat, tp->t_column);
981	for (i = j = 0; ttystates[i].flag; i++)
982		if (tp->t_state&ttystates[i].flag)
983			state[j++] = ttystates[i].val;
984	if (j == 0)
985		state[j++] = '-';
986	state[j] = '\0';
987	(void)printf("%-6s %8lx", state,
988		hideroot ? 0 : (u_long)tp->t_session & 0xffffffff);
989	(void)printf("%6d ", tp->t_pgrp_pg_id);
990	switch (tp->t_line) {
991	case TTYDISC:
992		(void)printf("term\n");
993		break;
994	case PPPDISC:
995		(void)printf("ppp\n");
996		break;
997	case NMEADISC:
998		(void)printf("nmea\n");
999		break;
1000	default:
1001		(void)printf("%d\n", tp->t_line);
1002		break;
1003	}
1004}
1005
1006void
1007filemode(void)
1008{
1009	char flagbuf[16], *fbp;
1010	static char *dtypes[] = { "???", "inode", "socket", "pipe", "kqueue", "???", "???" };
1011
1012	globalnl = vnodenl;
1013
1014	if (nlistf != NULL || memf != NULL) {
1015		KGET(FNL_MAXFILE, maxfile);
1016		if (totalflag) {
1017			KGET(FNL_NFILE, nfile);
1018			(void)printf("%3d/%3d files\n", nfile, maxfile);
1019			return;
1020		}
1021	}
1022
1023	(void)printf("%d/%d open files\n", nfile, maxfile);
1024	if (totalflag)
1025		return;
1026
1027	(void)printf("%*s TYPE       FLG  CNT  MSG  %*s  OFFSET\n",
1028	    2 * (int)sizeof(long), "LOC", 2 * (int)sizeof(long), "DATA");
1029	for (; nfile-- > 0; kf++) {
1030		(void)printf("%0*llx ", 2 * (int)sizeof(long),
1031		    hideroot ? 0LL : kf->f_fileaddr);
1032		(void)printf("%-8.8s", dtypes[
1033		    (kf->f_type >= (sizeof(dtypes)/sizeof(dtypes[0])))
1034		    ? 0 : kf->f_type]);
1035		fbp = flagbuf;
1036		if (kf->f_flag & FREAD)
1037			*fbp++ = 'R';
1038		if (kf->f_flag & FWRITE)
1039			*fbp++ = 'W';
1040		if (kf->f_flag & FAPPEND)
1041			*fbp++ = 'A';
1042		if (kf->f_flag & FASYNC)
1043			*fbp++ = 'I';
1044
1045		if (kf->f_iflags & FIF_HASLOCK)
1046			*fbp++ = 'L';
1047
1048		*fbp = '\0';
1049		(void)printf("%6s  %3ld", flagbuf, (long)kf->f_count);
1050		(void)printf("  %3ld", (long)kf->f_msgcount);
1051		(void)printf("  %0*lx", 2 * (int)sizeof(long),
1052		    hideroot ? 0L : (long)kf->f_data);
1053
1054		if (kf->f_offset == (uint64_t)-1)
1055			(void)printf("  *\n");
1056		else if (kf->f_offset > INT64_MAX) {
1057			/* would have been negative */
1058			(void)printf("  %llx\n",
1059			    hideroot ? 0LL : (long long)kf->f_offset);
1060		} else
1061			(void)printf("  %lld\n",
1062			    hideroot ? 0LL : (long long)kf->f_offset);
1063	}
1064}
1065
1066void
1067filemodeprep(void)
1068{
1069	int mib[2];
1070	size_t len;
1071
1072	if (nlistf == NULL && memf == NULL) {
1073		mib[0] = CTL_KERN;
1074		mib[1] = KERN_MAXFILES;
1075		len = sizeof(maxfile);
1076		if (sysctl(mib, 2, &maxfile, &len, NULL, 0) < 0)
1077			err(1, "sysctl(KERN_MAXFILES) failed");
1078		if (totalflag) {
1079			mib[0] = CTL_KERN;
1080			mib[1] = KERN_NFILES;
1081			len = sizeof(nfile);
1082			if (sysctl(mib, 2, &nfile, &len, NULL, 0) < 0)
1083				err(1, "sysctl(KERN_NFILES) failed");
1084		}
1085	}
1086
1087	if (!totalflag) {
1088		kf = kvm_getfiles(kd, KERN_FILE_BYFILE, 0, sizeof *kf, &nfile);
1089		if (kf == NULL) {
1090			warnx("kvm_getfiles: %s", kvm_geterr(kd));
1091			return;
1092		}
1093	}
1094}
1095
1096/*
1097 * swapmode is based on a program called swapinfo written
1098 * by Kevin Lahey <kml@rokkaku.atl.ga.us>.
1099 */
1100void
1101swapmode(void)
1102{
1103	char *header;
1104	int hlen = 10, nswap;
1105	int bdiv, i, avail, nfree, npfree, used;
1106	long blocksize;
1107	struct swapent *swdev;
1108
1109	if (kflag) {
1110		header = "1K-blocks";
1111		blocksize = 1024;
1112		hlen = strlen(header);
1113	} else
1114		header = getbsize(&hlen, &blocksize);
1115
1116	nswap = swapctl(SWAP_NSWAP, 0, 0);
1117	if (nswap == 0) {
1118		if (!totalflag)
1119			(void)printf("%-11s %*s %8s %8s %8s  %s\n",
1120			    "Device", hlen, header,
1121			    "Used", "Avail", "Capacity", "Priority");
1122		(void)printf("%-11s %*d %8d %8d %5.0f%%\n",
1123		    "Total", hlen, 0, 0, 0, 0.0);
1124		return;
1125	}
1126	if ((swdev = calloc(nswap, sizeof(*swdev))) == NULL)
1127		err(1, "malloc");
1128	if (swapctl(SWAP_STATS, swdev, nswap) == -1)
1129		err(1, "swapctl");
1130
1131	if (!totalflag)
1132		(void)printf("%-11s %*s %8s %8s %8s  %s\n",
1133		    "Device", hlen, header,
1134		    "Used", "Avail", "Capacity", "Priority");
1135
1136	/* Run through swap list, doing the funky monkey. */
1137	bdiv = blocksize / DEV_BSIZE;
1138	avail = nfree = npfree = 0;
1139	for (i = 0; i < nswap; i++) {
1140		int xsize, xfree;
1141
1142		if (!(swdev[i].se_flags & SWF_ENABLE))
1143			continue;
1144
1145		if (!totalflag) {
1146			if (usenumflag)
1147				(void)printf("%2d,%-2d       %*d ",
1148				    major(swdev[i].se_dev),
1149				    minor(swdev[i].se_dev),
1150				    hlen, swdev[i].se_nblks / bdiv);
1151			else
1152				(void)printf("%-11s %*d ", swdev[i].se_path,
1153				    hlen, swdev[i].se_nblks / bdiv);
1154		}
1155
1156		xsize = swdev[i].se_nblks;
1157		used = swdev[i].se_inuse;
1158		xfree = xsize - used;
1159		nfree += (xsize - used);
1160		npfree++;
1161		avail += xsize;
1162		if (totalflag)
1163			continue;
1164		(void)printf("%8d %8d %5.0f%%    %d\n",
1165		    used / bdiv, xfree / bdiv,
1166		    (double)used / (double)xsize * 100.0,
1167		    swdev[i].se_priority);
1168	}
1169	free(swdev);
1170
1171	/*
1172	 * If only one partition has been set up via swapon(8), we don't
1173	 * need to bother with totals.
1174	 */
1175	used = avail - nfree;
1176	if (totalflag) {
1177		(void)printf("%dM/%dM swap space\n",
1178		    used / (1048576 / DEV_BSIZE),
1179		    avail / (1048576 / DEV_BSIZE));
1180		return;
1181	}
1182	if (npfree > 1) {
1183		(void)printf("%-11s %*d %8d %8d %5.0f%%\n",
1184		    "Total", hlen, avail / bdiv, used / bdiv, nfree / bdiv,
1185		    (double)used / (double)avail * 100.0);
1186	}
1187}
1188
1189static void __dead
1190usage(void)
1191{
1192	(void)fprintf(stderr, "usage: "
1193	    "pstat [-fknsTtv] [-M core] [-N system] [-d format symbol ...]\n");
1194	exit(1);
1195}
1196