pstat.c revision 1.109 
1/*	$OpenBSD: pstat.c,v 1.109 2016/09/19 20:08:12 tb 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 <kvm.h>
61#include <limits.h>
62#include <nlist.h>
63#include <paths.h>
64#include <stdio.h>
65#include <stdlib.h>
66#include <string.h>
67#include <unistd.h>
68
69struct nlist vnodenl[] = {
70#define	FNL_NFILE	0		/* sysctl */
71	{"_nfiles"},
72#define FNL_MAXFILE	1		/* sysctl */
73	{"_maxfiles"},
74#define TTY_NTTY	2		/* sysctl */
75	{"_tty_count"},
76#define V_NUMV		3		/* sysctl */
77	{ "_numvnodes" },
78#define TTY_TTYLIST	4		/* sysctl */
79	{"_ttylist"},
80#define	V_MOUNTLIST	5		/* no sysctl */
81	{ "_mountlist" },
82	{ NULL }
83};
84
85struct nlist *globalnl;
86
87struct e_vnode {
88	struct vnode *vptr;
89	struct vnode vnode;
90};
91
92int	need_nlist;
93int	usenumflag;
94int	totalflag;
95int	kflag;
96char	*nlistf	= NULL;
97char	*memf	= NULL;
98kvm_t	*kd = NULL;
99
100#define	SVAR(var) __STRING(var)	/* to force expansion */
101#define	KGET(idx, var)							\
102	KGET1(idx, &var, sizeof(var), SVAR(var))
103#define	KGET1(idx, p, s, msg)						\
104	KGET2(globalnl[idx].n_value, p, s, msg)
105#define	KGET2(addr, p, s, msg)						\
106	if (kvm_read(kd, (u_long)(addr), p, s) != s)			\
107		warnx("cannot read %s: %s", msg, kvm_geterr(kd))
108#define	KGETRET(addr, p, s, msg)					\
109	if (kvm_read(kd, (u_long)(addr), p, s) != s) {			\
110		warnx("cannot read %s: %s", msg, kvm_geterr(kd));	\
111		return (0);						\
112	}
113
114void	filemode(void);
115struct mount *
116	getmnt(struct mount *);
117struct e_vnode *
118	kinfo_vnodes(int *);
119void	mount_print(struct mount *);
120void	nfs_header(void);
121int	nfs_print(struct vnode *);
122void	swapmode(void);
123void	ttymode(void);
124void	ttyprt(struct itty *);
125void	tty2itty(struct tty *tp, struct itty *itp);
126void	ufs_header(void);
127int	ufs_print(struct vnode *);
128void	ext2fs_header(void);
129int	ext2fs_print(struct vnode *);
130void	usage(void);
131void	vnode_header(void);
132void	vnode_print(struct vnode *, struct vnode *);
133void	vnodemode(void);
134
135int	hideroot;
136
137int
138main(int argc, char *argv[])
139{
140	int fileflag = 0, swapflag = 0, ttyflag = 0, vnodeflag = 0, ch;
141	char buf[_POSIX2_LINE_MAX];
142	const char *dformat = NULL;
143	extern char *optarg;
144	extern int optind;
145	int i;
146
147	hideroot = getuid();
148
149	while ((ch = getopt(argc, argv, "d:TM:N:fiknstv")) != -1)
150		switch (ch) {
151		case 'd':
152			dformat = optarg;
153			break;
154		case 'f':
155			fileflag = 1;
156			break;
157		case 'M':
158			memf = optarg;
159			break;
160		case 'N':
161			nlistf = optarg;
162			break;
163		case 'n':
164			usenumflag = 1;
165			break;
166		case 's':
167			swapflag = 1;
168			break;
169		case 'T':
170			totalflag = 1;
171			break;
172		case 't':
173			ttyflag = 1;
174			break;
175		case 'k':
176			kflag = 1;
177			break;
178		case 'v':
179		case 'i':		/* Backward compatibility. */
180			vnodeflag = 1;
181			break;
182		default:
183			usage();
184		}
185	argc -= optind;
186	argv += optind;
187
188	if (dformat && getuid())
189		errx(1, "Only root can use -d");
190
191	if ((dformat == NULL && argc > 0) || (dformat && argc == 0))
192		usage();
193
194	need_nlist = vnodeflag || dformat;
195
196	if (nlistf != NULL || memf != NULL) {
197		if (fileflag || totalflag)
198			need_nlist = 1;
199	}
200
201	if (vnodeflag || fileflag || dformat || need_nlist)
202		if ((kd = kvm_openfiles(nlistf, memf, NULL,
203		    O_RDONLY | (need_nlist ? 0 : KVM_NO_FILES), buf)) == 0)
204			errx(1, "kvm_openfiles: %s", buf);
205
206	if (dformat) {
207		struct nlist *nl;
208		int longformat = 0, stringformat = 0, error = 0, n;
209		uint32_t mask = ~0;
210		char format[10], buf[1024];
211
212		n = strlen(dformat);
213		if (n == 0)
214			errx(1, "illegal format");
215
216		/*
217		 * Support p, c, s, and {l, ll, h, hh, j, t, z, }[diouxX]
218		 */
219		if (strcmp(dformat, "p") == 0)
220			longformat = sizeof(long) == 8;
221		else if (strcmp(dformat, "c") == 0)
222			mask = 0xff;
223		else if (strcmp(dformat, "s") == 0)
224			stringformat = 1;
225		else if (strchr("diouxX", dformat[n - 1])) {
226			char *ptbl[]= {"l", "ll", "h", "hh", "j", "t", "z", ""};
227			int i;
228
229			char *mod;
230			for (i = 0; i < sizeof(ptbl)/sizeof(ptbl[0]); i++) {
231				mod = ptbl[i];
232				if (strlen(mod) == n - 1 &&
233				    strncmp(mod, dformat, strlen(mod)) == 0)
234					break;
235			}
236			if (i == sizeof(ptbl)/sizeof(ptbl[0])
237			    && dformat[1] != '\0')
238				errx(1, "illegal format");
239			if (strcmp(mod, "l") == 0)
240				longformat = sizeof(long) == sizeof(long long);
241			else if (strcmp(mod, "h") == 0)
242				mask = 0xffff;
243			else if (strcmp(mod, "hh") == 0)
244				mask = 0xff;
245			else
246				longformat = 1;
247
248		} else
249			errx(1, "illegal format");
250
251		if (*dformat == 's') {
252			stringformat = 1;
253			snprintf(format, sizeof(format), "%%.%zus",
254			    sizeof buf);
255		} else
256			snprintf(format, sizeof(format), "%%%s", dformat);
257
258		nl = calloc(argc + 1, sizeof *nl);
259		if (!nl)
260			err(1, "calloc nl: ");
261		for (i = 0; i < argc; i++) {
262			if (asprintf(&nl[i].n_name, "_%s",
263			    argv[i]) == -1)
264				warn("asprintf");
265		}
266		kvm_nlist(kd, nl);
267		globalnl = nl;
268		for (i = 0; i < argc; i++) {
269			uint64_t v;
270
271			printf("%s ", argv[i]);
272			if (!nl[i].n_value && argv[i][0] == '0') {
273				nl[i].n_value = strtoul(argv[i], NULL, 16);
274				nl[i].n_type = N_DATA;
275			}
276			if (!nl[i].n_value) {
277				printf("not found\n");
278				error++;
279				continue;
280			}
281
282			printf("at %p: ", (void *)nl[i].n_value);
283			if (nl[i].n_type == N_DATA) {
284				if (stringformat) {
285					KGET1(i, &buf, sizeof(buf), argv[i]);
286					buf[sizeof(buf) - 1] = '\0';
287				} else
288					KGET1(i, &v, sizeof(v), argv[i]);
289				if (stringformat)
290					printf(format, &buf);
291				else if (longformat)
292					printf(format, v);
293				else {
294#if BYTE_ORDER == BIG_ENDIAN
295					switch (mask) {
296					case 0xff:
297						v >>= 8;
298						/* FALLTHROUGH */
299					case 0xffff:
300						v >>= 16;
301						/* FALLTHROUGH */
302					case 0xffffffff:
303						v >>= 32;
304						break;
305					}
306#endif
307					printf(format, ((uint32_t)v) & mask);
308				}
309			}
310			printf("\n");
311		}
312		for (i = 0; i < argc; i++)
313			free(nl[i].n_name);
314		free(nl);
315		exit(error);
316	}
317
318	if (need_nlist)
319		if (kvm_nlist(kd, vnodenl) == -1)
320			errx(1, "kvm_nlist: %s", kvm_geterr(kd));
321
322	if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag || dformat))
323		usage();
324	if (fileflag || totalflag)
325		filemode();
326	if (vnodeflag || totalflag)
327		vnodemode();
328	if (ttyflag)
329		ttymode();
330	if (swapflag || totalflag)
331		swapmode();
332	exit(0);
333}
334
335void
336vnodemode(void)
337{
338	struct e_vnode *e_vnodebase, *endvnode, *evp;
339	struct vnode *vp;
340	struct mount *maddr, *mp = NULL;
341	int numvnodes;
342
343	globalnl = vnodenl;
344
345	e_vnodebase = kinfo_vnodes(&numvnodes);
346	if (totalflag) {
347		(void)printf("%7d vnodes\n", numvnodes);
348		return;
349	}
350	if (!e_vnodebase)
351		return;
352	endvnode = e_vnodebase + numvnodes;
353	(void)printf("%d active vnodes\n", numvnodes);
354
355	maddr = NULL;
356	for (evp = e_vnodebase; evp < endvnode; evp++) {
357		vp = &evp->vnode;
358		if (vp->v_mount != maddr) {
359			/*
360			 * New filesystem
361			 */
362			if ((mp = getmnt(vp->v_mount)) == NULL)
363				continue;
364			maddr = vp->v_mount;
365			mount_print(mp);
366			vnode_header();
367			if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_FFS, MFSNAMELEN) ||
368			    !strncmp(mp->mnt_stat.f_fstypename, MOUNT_MFS, MFSNAMELEN)) {
369				ufs_header();
370			} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_NFS,
371			    MFSNAMELEN)) {
372				nfs_header();
373			} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_EXT2FS,
374			    MFSNAMELEN)) {
375				ext2fs_header();
376			}
377			(void)printf("\n");
378		}
379		vnode_print(evp->vptr, vp);
380
381		/* Syncer vnodes have no associated fs-specific data */
382		if (vp->v_data == NULL) {
383			printf(" %6c %5c %7c\n", '-', '-', '-');
384			continue;
385		}
386
387		if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_FFS, MFSNAMELEN) ||
388		    !strncmp(mp->mnt_stat.f_fstypename, MOUNT_MFS, MFSNAMELEN)) {
389			ufs_print(vp);
390		} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_NFS, MFSNAMELEN)) {
391			nfs_print(vp);
392		} else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_EXT2FS,
393		    MFSNAMELEN)) {
394			ext2fs_print(vp);
395		}
396		(void)printf("\n");
397	}
398	free(e_vnodebase);
399}
400
401void
402vnode_header(void)
403{
404	(void)printf("%*s TYP VFLAG  USE HOLD", 2 * (int)sizeof(long), "ADDR");
405}
406
407void
408vnode_print(struct vnode *avnode, struct vnode *vp)
409{
410	char *type, flags[16];
411	char *fp;
412	int flag;
413
414	/*
415	 * set type
416	 */
417	switch (vp->v_type) {
418	case VNON:
419		type = "non"; break;
420	case VREG:
421		type = "reg"; break;
422	case VDIR:
423		type = "dir"; break;
424	case VBLK:
425		type = "blk"; break;
426	case VCHR:
427		type = "chr"; break;
428	case VLNK:
429		type = "lnk"; break;
430	case VSOCK:
431		type = "soc"; break;
432	case VFIFO:
433		type = "fif"; break;
434	case VBAD:
435		type = "bad"; break;
436	default:
437		type = "unk"; break;
438	}
439	/*
440	 * gather flags
441	 */
442	fp = flags;
443	flag = vp->v_flag;
444	if (flag & VROOT)
445		*fp++ = 'R';
446	if (flag & VTEXT)
447		*fp++ = 'T';
448	if (flag & VSYSTEM)
449		*fp++ = 'S';
450	if (flag & VISTTY)
451		*fp++ = 'I';
452	if (flag & VXLOCK)
453		*fp++ = 'L';
454	if (flag & VXWANT)
455		*fp++ = 'W';
456	if (vp->v_bioflag & VBIOWAIT)
457		*fp++ = 'B';
458	if (flag & VALIASED)
459		*fp++ = 'A';
460	if (vp->v_bioflag & VBIOONFREELIST)
461		*fp++ = 'F';
462	if (flag & VLOCKSWORK)
463		*fp++ = 'l';
464	if (vp->v_bioflag & VBIOONSYNCLIST)
465		*fp++ = 's';
466	if (fp == flags)
467		*fp++ = '-';
468	*fp = '\0';
469	(void)printf("%0*lx %s %5s %4d %4u",
470	    2 * (int)sizeof(long), hideroot ? 0L : (long)avnode,
471	    type, flags, vp->v_usecount, vp->v_holdcnt);
472}
473
474void
475ufs_header(void)
476{
477	(void)printf(" FILEID IFLAG RDEV|SZ");
478}
479
480int
481ufs_print(struct vnode *vp)
482{
483	int flag;
484	struct inode inode, *ip = &inode;
485	struct ufs1_dinode di1;
486	char flagbuf[16], *flags = flagbuf;
487	char *name;
488	mode_t type;
489
490	KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
491	KGETRET(inode.i_din1, &di1, sizeof(struct ufs1_dinode),
492	    "vnode's dinode");
493
494	inode.i_din1 = &di1;
495	flag = ip->i_flag;
496#if 0
497	if (flag & IN_LOCKED)
498		*flags++ = 'L';
499	if (flag & IN_WANTED)
500		*flags++ = 'W';
501	if (flag & IN_LWAIT)
502		*flags++ = 'Z';
503#endif
504	if (flag & IN_ACCESS)
505		*flags++ = 'A';
506	if (flag & IN_CHANGE)
507		*flags++ = 'C';
508	if (flag & IN_UPDATE)
509		*flags++ = 'U';
510	if (flag & IN_MODIFIED)
511		*flags++ = 'M';
512	if (flag & IN_LAZYMOD)
513		*flags++ = 'm';
514	if (flag & IN_RENAME)
515		*flags++ = 'R';
516	if (flag & IN_SHLOCK)
517		*flags++ = 'S';
518	if (flag & IN_EXLOCK)
519		*flags++ = 'E';
520	if (flag == 0)
521		*flags++ = '-';
522	*flags = '\0';
523
524	(void)printf(" %6d %5s", ip->i_number, flagbuf);
525	type = ip->i_ffs1_mode & S_IFMT;
526	if (S_ISCHR(ip->i_ffs1_mode) || S_ISBLK(ip->i_ffs1_mode))
527		if (usenumflag ||
528		    ((name = devname(ip->i_ffs1_rdev, type)) == NULL))
529			(void)printf("   %2d,%-2d",
530			    major(ip->i_ffs1_rdev), minor(ip->i_ffs1_rdev));
531		else
532			(void)printf(" %7s", name);
533	else
534		(void)printf(" %7lld", (long long)ip->i_ffs1_size);
535	return (0);
536}
537
538void
539ext2fs_header(void)
540{
541	(void)printf(" FILEID IFLAG SZ");
542}
543
544int
545ext2fs_print(struct vnode *vp)
546{
547	int flag;
548	struct inode inode, *ip = &inode;
549	struct ext2fs_dinode di;
550	char flagbuf[16], *flags = flagbuf;
551
552	KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
553	KGETRET(inode.i_e2din, &di, sizeof(struct ext2fs_dinode),
554	    "vnode's dinode");
555
556	inode.i_e2din = &di;
557	flag = ip->i_flag;
558
559#if 0
560	if (flag & IN_LOCKED)
561		*flags++ = 'L';
562	if (flag & IN_WANTED)
563		*flags++ = 'W';
564	if (flag & IN_LWAIT)
565		*flags++ = 'Z';
566#endif
567	if (flag & IN_ACCESS)
568		*flags++ = 'A';
569	if (flag & IN_CHANGE)
570		*flags++ = 'C';
571	if (flag & IN_UPDATE)
572		*flags++ = 'U';
573	if (flag & IN_MODIFIED)
574		*flags++ = 'M';
575	if (flag & IN_RENAME)
576		*flags++ = 'R';
577	if (flag & IN_SHLOCK)
578		*flags++ = 'S';
579	if (flag & IN_EXLOCK)
580		*flags++ = 'E';
581	if (flag == 0)
582		*flags++ = '-';
583	*flags = '\0';
584
585	(void)printf(" %6d %5s %2d", ip->i_number, flagbuf, ip->i_e2fs_size);
586	return (0);
587}
588
589void
590nfs_header(void)
591{
592	(void)printf(" FILEID NFLAG RDEV|SZ");
593}
594
595int
596nfs_print(struct vnode *vp)
597{
598	struct nfsnode nfsnode, *np = &nfsnode;
599	char flagbuf[16], *flags = flagbuf;
600	int flag;
601	char *name;
602	mode_t type;
603
604	KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode");
605	flag = np->n_flag;
606	if (flag & NFLUSHWANT)
607		*flags++ = 'W';
608	if (flag & NFLUSHINPROG)
609		*flags++ = 'P';
610	if (flag & NMODIFIED)
611		*flags++ = 'M';
612	if (flag & NWRITEERR)
613		*flags++ = 'E';
614	if (flag & NACC)
615		*flags++ = 'A';
616	if (flag & NUPD)
617		*flags++ = 'U';
618	if (flag & NCHG)
619		*flags++ = 'C';
620	if (flag == 0)
621		*flags++ = '-';
622	*flags = '\0';
623
624	(void)printf(" %6lld %5s", (long long)np->n_vattr.va_fileid, flagbuf);
625	type = np->n_vattr.va_mode & S_IFMT;
626	if (S_ISCHR(np->n_vattr.va_mode) || S_ISBLK(np->n_vattr.va_mode))
627		if (usenumflag ||
628		    ((name = devname(np->n_vattr.va_rdev, type)) == NULL))
629			(void)printf("   %2d,%-2d", major(np->n_vattr.va_rdev),
630			    minor(np->n_vattr.va_rdev));
631		else
632			(void)printf(" %7s", name);
633	else
634		(void)printf(" %7lld", (long long)np->n_size);
635	return (0);
636}
637
638/*
639 * Given a pointer to a mount structure in kernel space,
640 * read it in and return a usable pointer to it.
641 */
642struct mount *
643getmnt(struct mount *maddr)
644{
645	static struct mtab {
646		struct mtab *next;
647		struct mount *maddr;
648		struct mount mount;
649	} *mhead = NULL;
650	struct mtab *mt;
651
652	for (mt = mhead; mt != NULL; mt = mt->next)
653		if (maddr == mt->maddr)
654			return (&mt->mount);
655	if ((mt = malloc(sizeof(struct mtab))) == NULL)
656		err(1, "malloc: mount table");
657	KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table");
658	mt->maddr = maddr;
659	mt->next = mhead;
660	mhead = mt;
661	return (&mt->mount);
662}
663
664void
665mount_print(struct mount *mp)
666{
667	int flags;
668
669	(void)printf("*** MOUNT ");
670	(void)printf("%.*s %s on %s", MFSNAMELEN,
671	    mp->mnt_stat.f_fstypename, mp->mnt_stat.f_mntfromname,
672	    mp->mnt_stat.f_mntonname);
673	if ((flags = mp->mnt_flag)) {
674		char *comma = "(";
675
676		putchar(' ');
677		/* user visible flags */
678		if (flags & MNT_RDONLY) {
679			(void)printf("%srdonly", comma);
680			flags &= ~MNT_RDONLY;
681			comma = ",";
682		}
683		if (flags & MNT_SYNCHRONOUS) {
684			(void)printf("%ssynchronous", comma);
685			flags &= ~MNT_SYNCHRONOUS;
686			comma = ",";
687		}
688		if (flags & MNT_NOEXEC) {
689			(void)printf("%snoexec", comma);
690			flags &= ~MNT_NOEXEC;
691			comma = ",";
692		}
693		if (flags & MNT_NOSUID) {
694			(void)printf("%snosuid", comma);
695			flags &= ~MNT_NOSUID;
696			comma = ",";
697		}
698		if (flags & MNT_NODEV) {
699			(void)printf("%snodev", comma);
700			flags &= ~MNT_NODEV;
701			comma = ",";
702		}
703		if (flags & MNT_ASYNC) {
704			(void)printf("%sasync", comma);
705			flags &= ~MNT_ASYNC;
706			comma = ",";
707		}
708		if (flags & MNT_EXRDONLY) {
709			(void)printf("%sexrdonly", comma);
710			flags &= ~MNT_EXRDONLY;
711			comma = ",";
712		}
713		if (flags & MNT_EXPORTED) {
714			(void)printf("%sexport", comma);
715			flags &= ~MNT_EXPORTED;
716			comma = ",";
717		}
718		if (flags & MNT_DEFEXPORTED) {
719			(void)printf("%sdefdexported", comma);
720			flags &= ~MNT_DEFEXPORTED;
721			comma = ",";
722		}
723		if (flags & MNT_EXPORTANON) {
724			(void)printf("%sexportanon", comma);
725			flags &= ~MNT_EXPORTANON;
726			comma = ",";
727		}
728		if (flags & MNT_WXALLOWED) {
729			(void)printf("%swxallowed", comma);
730			flags &= ~MNT_WXALLOWED;
731			comma = ",";
732		}
733		if (flags & MNT_LOCAL) {
734			(void)printf("%slocal", comma);
735			flags &= ~MNT_LOCAL;
736			comma = ",";
737		}
738		if (flags & MNT_QUOTA) {
739			(void)printf("%squota", comma);
740			flags &= ~MNT_QUOTA;
741			comma = ",";
742		}
743		if (flags & MNT_ROOTFS) {
744			(void)printf("%srootfs", comma);
745			flags &= ~MNT_ROOTFS;
746			comma = ",";
747		}
748		if (flags & MNT_NOATIME) {
749			(void)printf("%snoatime", comma);
750			flags &= ~MNT_NOATIME;
751			comma = ",";
752		}
753		/* filesystem control flags */
754		if (flags & MNT_UPDATE) {
755			(void)printf("%supdate", comma);
756			flags &= ~MNT_UPDATE;
757			comma = ",";
758		}
759		if (flags & MNT_DELEXPORT) {
760			(void)printf("%sdelexport", comma);
761			flags &= ~MNT_DELEXPORT;
762			comma = ",";
763		}
764		if (flags & MNT_RELOAD) {
765			(void)printf("%sreload", comma);
766			flags &= ~MNT_RELOAD;
767			comma = ",";
768		}
769		if (flags & MNT_FORCE) {
770			(void)printf("%sforce", comma);
771			flags &= ~MNT_FORCE;
772			comma = ",";
773		}
774		if (flags & MNT_WANTRDWR) {
775			(void)printf("%swantrdwr", comma);
776			flags &= ~MNT_WANTRDWR;
777			comma = ",";
778		}
779		if (flags & MNT_SOFTDEP) {
780			(void)printf("%ssoftdep", comma);
781			flags &= ~MNT_SOFTDEP;
782			comma = ",";
783		}
784		if (flags)
785			(void)printf("%sunknown_flags:%x", comma, flags);
786		(void)printf(")");
787	}
788	(void)printf("\n");
789}
790
791/*
792 * simulate what a running kernel does in kinfo_vnode
793 */
794struct e_vnode *
795kinfo_vnodes(int *avnodes)
796{
797	struct mntlist kvm_mountlist;
798	struct mount *mp, mount;
799	struct vnode *vp, vnode;
800	char *vbuf, *evbuf, *bp;
801	int mib[2], numvnodes;
802	size_t num;
803
804	if (kd == 0) {
805		mib[0] = CTL_KERN;
806		mib[1] = KERN_NUMVNODES;
807		num = sizeof(numvnodes);
808		if (sysctl(mib, 2, &numvnodes, &num, NULL, 0) < 0)
809			err(1, "sysctl(KERN_NUMVNODES) failed");
810	} else
811		KGET(V_NUMV, numvnodes);
812	*avnodes = numvnodes;
813	if (totalflag)
814		return NULL;
815	if ((vbuf = calloc(numvnodes + 20,
816	    sizeof(struct vnode *) + sizeof(struct vnode))) == NULL)
817		err(1, "malloc: vnode buffer");
818	bp = vbuf;
819	evbuf = vbuf + (numvnodes + 20) *
820	    (sizeof(struct vnode *) + sizeof(struct vnode));
821	KGET(V_MOUNTLIST, kvm_mountlist);
822	num = 0;
823	for (mp = TAILQ_FIRST(&kvm_mountlist); mp != NULL;
824	    mp = TAILQ_NEXT(&mount, mnt_list)) {
825		KGETRET(mp, &mount, sizeof(mount), "mount entry");
826		for (vp = LIST_FIRST(&mount.mnt_vnodelist);
827		    vp != NULL; vp = LIST_NEXT(&vnode, v_mntvnodes)) {
828			KGETRET(vp, &vnode, sizeof(vnode), "vnode");
829			if ((bp + sizeof(struct vnode *) +
830			    sizeof(struct vnode)) > evbuf)
831				/* XXX - should realloc */
832				errx(1, "no more room for vnodes");
833			memmove(bp, &vp, sizeof(struct vnode *));
834			bp += sizeof(struct vnode *);
835			memmove(bp, &vnode, sizeof(struct vnode));
836			bp += sizeof(struct vnode);
837			num++;
838		}
839	}
840	*avnodes = num;
841	return ((struct e_vnode *)vbuf);
842}
843
844const char hdr[] =
845"   LINE RAW  CAN  OUT  HWT LWT    COL STATE      SESS  PGID DISC\n";
846
847void
848tty2itty(struct tty *tp, struct itty *itp)
849{
850	itp->t_dev = tp->t_dev;
851	itp->t_rawq_c_cc = tp->t_rawq.c_cc;
852	itp->t_canq_c_cc = tp->t_canq.c_cc;
853	itp->t_outq_c_cc = tp->t_outq.c_cc;
854	itp->t_hiwat = tp->t_hiwat;
855	itp->t_lowat = tp->t_lowat;
856	itp->t_column = tp->t_column;
857	itp->t_state = tp->t_state;
858	itp->t_session = tp->t_session;
859	if (tp->t_pgrp != NULL)
860		KGET2(&tp->t_pgrp->pg_id, &itp->t_pgrp_pg_id, sizeof(pid_t), "pgid");
861	itp->t_line = tp->t_line;
862}
863
864void
865ttymode(void)
866{
867	struct ttylist_head tty_head;
868	struct tty *tp, tty;
869	int mib[3], ntty, i;
870	struct itty itty, *itp;
871	size_t nlen;
872
873	if (!need_nlist) {
874		mib[0] = CTL_KERN;
875		mib[1] = KERN_TTYCOUNT;
876		nlen = sizeof(ntty);
877		if (sysctl(mib, 2, &ntty, &nlen, NULL, 0) < 0)
878			err(1, "sysctl(KERN_TTYCOUNT) failed");
879	} else
880		KGET(TTY_NTTY, ntty);
881	(void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s");
882	(void)printf("%s", hdr);
883	if (!need_nlist) {
884		mib[0] = CTL_KERN;
885		mib[1] = KERN_TTY;
886		mib[2] = KERN_TTY_INFO;
887		if ((itp = reallocarray(NULL, ntty, sizeof(struct itty))) == NULL)
888			err(1, "malloc");
889		nlen = ntty * sizeof(struct itty);
890		if (sysctl(mib, 3, itp, &nlen, NULL, 0) < 0)
891			err(1, "sysctl(KERN_TTY_INFO) failed");
892		for (i = 0; i < ntty; i++)
893			ttyprt(&itp[i]);
894		free(itp);
895	} else {
896		KGET(TTY_TTYLIST, tty_head);
897		for (tp = TAILQ_FIRST(&tty_head); tp;
898		    tp = TAILQ_NEXT(&tty, tty_link)) {
899			KGET2(tp, &tty, sizeof tty, "tty struct");
900			tty2itty(&tty, &itty);
901			ttyprt(&itty);
902		}
903	}
904}
905
906struct {
907	int flag;
908	char val;
909} ttystates[] = {
910	{ TS_WOPEN,	'W'},
911	{ TS_ISOPEN,	'O'},
912	{ TS_CARR_ON,	'C'},
913	{ TS_TIMEOUT,	'T'},
914	{ TS_FLUSH,	'F'},
915	{ TS_BUSY,	'B'},
916	{ TS_ASLEEP,	'A'},
917	{ TS_XCLUDE,	'X'},
918	{ TS_TTSTOP,	'S'},
919	{ TS_TBLOCK,	'K'},
920	{ TS_ASYNC,	'Y'},
921	{ TS_BKSL,	'D'},
922	{ TS_ERASE,	'E'},
923	{ TS_LNCH,	'L'},
924	{ TS_TYPEN,	'P'},
925	{ TS_CNTTB,	'N'},
926	{ 0,		'\0'},
927};
928
929void
930ttyprt(struct itty *tp)
931{
932	char *name, state[20];
933	int i, j;
934
935	if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL)
936		(void)printf("%2d,%-3d   ", major(tp->t_dev), minor(tp->t_dev));
937	else
938		(void)printf("%7s ", name);
939	(void)printf("%3d %4d ", tp->t_rawq_c_cc, tp->t_canq_c_cc);
940	(void)printf("%4d %4d %3d %6d ", tp->t_outq_c_cc,
941		tp->t_hiwat, tp->t_lowat, tp->t_column);
942	for (i = j = 0; ttystates[i].flag; i++)
943		if (tp->t_state&ttystates[i].flag)
944			state[j++] = ttystates[i].val;
945	if (j == 0)
946		state[j++] = '-';
947	state[j] = '\0';
948	(void)printf("%-6s %8lx", state,
949		hideroot ? 0 : (u_long)tp->t_session & 0xffffffff);
950	(void)printf("%6d ", tp->t_pgrp_pg_id);
951	switch (tp->t_line) {
952	case TTYDISC:
953		(void)printf("term\n");
954		break;
955	case TABLDISC:
956		(void)printf("tab\n");
957		break;
958	case SLIPDISC:
959		(void)printf("slip\n");
960		break;
961	case PPPDISC:
962		(void)printf("ppp\n");
963		break;
964	case STRIPDISC:
965		(void)printf("strip\n");
966		break;
967	case NMEADISC:
968		(void)printf("nmea\n");
969		break;
970	default:
971		(void)printf("%d\n", tp->t_line);
972		break;
973	}
974}
975
976void
977filemode(void)
978{
979	struct kinfo_file *kf;
980	char flagbuf[16], *fbp;
981	static char *dtypes[] = { "???", "inode", "socket", "pipe", "kqueue", "???", "???" };
982	int mib[2], maxfile, nfile;
983	size_t len;
984
985	globalnl = vnodenl;
986
987	if (nlistf == NULL && memf == NULL) {
988		mib[0] = CTL_KERN;
989		mib[1] = KERN_MAXFILES;
990		len = sizeof(maxfile);
991		if (sysctl(mib, 2, &maxfile, &len, NULL, 0) < 0)
992			err(1, "sysctl(KERN_MAXFILES) failed");
993		if (totalflag) {
994			mib[0] = CTL_KERN;
995			mib[1] = KERN_NFILES;
996			len = sizeof(nfile);
997			if (sysctl(mib, 2, &nfile, &len, NULL, 0) < 0)
998				err(1, "sysctl(KERN_NFILES) failed");
999		}
1000	} else {
1001		KGET(FNL_MAXFILE, maxfile);
1002		if (totalflag) {
1003			KGET(FNL_NFILE, nfile);
1004			(void)printf("%3d/%3d files\n", nfile, maxfile);
1005			return;
1006		}
1007	}
1008
1009	if (!totalflag) {
1010		kf = kvm_getfiles(kd, KERN_FILE_BYFILE, 0, sizeof *kf, &nfile);
1011		if (kf == NULL) {
1012			warnx("kvm_getfiles: %s", kvm_geterr(kd));
1013			return;
1014		}
1015	}
1016
1017	(void)printf("%d/%d open files\n", nfile, maxfile);
1018	if (totalflag)
1019		return;
1020
1021	(void)printf("%*s TYPE       FLG  CNT  MSG  %*s  OFFSET\n",
1022	    2 * (int)sizeof(long), "LOC", 2 * (int)sizeof(long), "DATA");
1023	for (; nfile-- > 0; kf++) {
1024		(void)printf("%0*llx ", 2 * (int)sizeof(long),
1025		    hideroot ? 0LL : kf->f_fileaddr);
1026		(void)printf("%-8.8s", dtypes[
1027		    (kf->f_type >= (sizeof(dtypes)/sizeof(dtypes[0])))
1028		    ? 0 : kf->f_type]);
1029		fbp = flagbuf;
1030		if (kf->f_flag & FREAD)
1031			*fbp++ = 'R';
1032		if (kf->f_flag & FWRITE)
1033			*fbp++ = 'W';
1034		if (kf->f_flag & FAPPEND)
1035			*fbp++ = 'A';
1036		if (kf->f_flag & FASYNC)
1037			*fbp++ = 'I';
1038
1039		if (kf->f_iflags & FIF_HASLOCK)
1040			*fbp++ = 'L';
1041		if (kf->f_iflags & FIF_LARVAL)
1042			*fbp++ = 'l';
1043
1044		*fbp = '\0';
1045		(void)printf("%6s  %3ld", flagbuf, (long)kf->f_count);
1046		(void)printf("  %3ld", (long)kf->f_msgcount);
1047		(void)printf("  %0*lx", 2 * (int)sizeof(long),
1048		    hideroot ? 0L : (long)kf->f_data);
1049
1050		if (kf->f_offset == (uint64_t)-1)
1051			(void)printf("  *\n");
1052		else if (kf->f_offset > INT64_MAX) {
1053			/* would have been negative */
1054			(void)printf("  %llx\n",
1055			    hideroot ? 0LL : (long long)kf->f_offset);
1056		} else
1057			(void)printf("  %lld\n",
1058			    hideroot ? 0LL : (long long)kf->f_offset);
1059	}
1060}
1061
1062/*
1063 * swapmode is based on a program called swapinfo written
1064 * by Kevin Lahey <kml@rokkaku.atl.ga.us>.
1065 */
1066void
1067swapmode(void)
1068{
1069	char *header;
1070	int hlen = 10, nswap;
1071	int bdiv, i, avail, nfree, npfree, used;
1072	long blocksize;
1073	struct swapent *swdev;
1074
1075	if (kflag) {
1076		header = "1K-blocks";
1077		blocksize = 1024;
1078		hlen = strlen(header);
1079	} else
1080		header = getbsize(&hlen, &blocksize);
1081
1082	nswap = swapctl(SWAP_NSWAP, 0, 0);
1083	if (nswap == 0) {
1084		if (!totalflag)
1085			(void)printf("%-11s %*s %8s %8s %8s  %s\n",
1086			    "Device", hlen, header,
1087			    "Used", "Avail", "Capacity", "Priority");
1088		(void)printf("%-11s %*d %8d %8d %5.0f%%\n",
1089		    "Total", hlen, 0, 0, 0, 0.0);
1090		return;
1091	}
1092	if ((swdev = calloc(nswap, sizeof(*swdev))) == NULL)
1093		err(1, "malloc");
1094	if (swapctl(SWAP_STATS, swdev, nswap) == -1)
1095		err(1, "swapctl");
1096
1097	if (!totalflag)
1098		(void)printf("%-11s %*s %8s %8s %8s  %s\n",
1099		    "Device", hlen, header,
1100		    "Used", "Avail", "Capacity", "Priority");
1101
1102	/* Run through swap list, doing the funky monkey. */
1103	bdiv = blocksize / DEV_BSIZE;
1104	avail = nfree = npfree = 0;
1105	for (i = 0; i < nswap; i++) {
1106		int xsize, xfree;
1107
1108		if (!(swdev[i].se_flags & SWF_ENABLE))
1109			continue;
1110
1111		if (!totalflag) {
1112			if (usenumflag)
1113				(void)printf("%2d,%-2d       %*d ",
1114				    major(swdev[i].se_dev),
1115				    minor(swdev[i].se_dev),
1116				    hlen, swdev[i].se_nblks / bdiv);
1117			else
1118				(void)printf("%-11s %*d ", swdev[i].se_path,
1119				    hlen, swdev[i].se_nblks / bdiv);
1120		}
1121
1122		xsize = swdev[i].se_nblks;
1123		used = swdev[i].se_inuse;
1124		xfree = xsize - used;
1125		nfree += (xsize - used);
1126		npfree++;
1127		avail += xsize;
1128		if (totalflag)
1129			continue;
1130		(void)printf("%8d %8d %5.0f%%    %d\n",
1131		    used / bdiv, xfree / bdiv,
1132		    (double)used / (double)xsize * 100.0,
1133		    swdev[i].se_priority);
1134	}
1135	free(swdev);
1136
1137	/*
1138	 * If only one partition has been set up via swapon(8), we don't
1139	 * need to bother with totals.
1140	 */
1141	used = avail - nfree;
1142	if (totalflag) {
1143		(void)printf("%dM/%dM swap space\n",
1144		    used / (1048576 / DEV_BSIZE),
1145		    avail / (1048576 / DEV_BSIZE));
1146		return;
1147	}
1148	if (npfree > 1) {
1149		(void)printf("%-11s %*d %8d %8d %5.0f%%\n",
1150		    "Total", hlen, avail / bdiv, used / bdiv, nfree / bdiv,
1151		    (double)used / (double)avail * 100.0);
1152	}
1153}
1154
1155void
1156usage(void)
1157{
1158	(void)fprintf(stderr, "usage: "
1159	    "pstat [-fknsTtv] [-M core] [-N system] [-d format symbol ...]\n");
1160	exit(1);
1161}
1162