pstat.c revision 19055 
1/*-
2 * Copyright (c) 1980, 1991, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35static char copyright[] =
36"@(#) Copyright (c) 1980, 1991, 1993\n\
37	The Regents of the University of California.  All rights reserved.\n";
38#endif /* not lint */
39
40#ifndef lint
41static char sccsid[] = "@(#)pstat.c	8.9 (Berkeley) 2/16/94";
42#endif /* not lint */
43
44#include <sys/param.h>
45#include <sys/time.h>
46#include <sys/vnode.h>
47#include <sys/ucred.h>
48#define KERNEL
49#include <sys/file.h>
50#include <ufs/ufs/quota.h>
51#include <ufs/ufs/inode.h>
52#define NFS
53#include <sys/mount.h>
54#undef NFS
55#undef KERNEL
56#include <sys/stat.h>
57#include <nfs/rpcv2.h>
58#include <nfs/nfsproto.h>
59#include <nfs/nfsnode.h>
60#include <sys/ioctl.h>
61#include <sys/ioctl_compat.h>	/* XXX NTTYDISC is too well hidden */
62#include <sys/tty.h>
63#include <sys/conf.h>
64#include <sys/rlist.h>
65
66#include <sys/user.h>
67#include <sys/sysctl.h>
68
69#include <err.h>
70#include <fcntl.h>
71#include <kvm.h>
72#include <limits.h>
73#include <nlist.h>
74#include <stdio.h>
75#include <stdlib.h>
76#include <string.h>
77#include <unistd.h>
78
79struct nlist nl[] = {
80#define VM_SWAPLIST	0
81	{ "_swaplist" },/* list of free swap areas */
82#define VM_SWDEVT	1
83	{ "_swdevt" },	/* list of swap devices and sizes */
84#define VM_NSWAP	2
85	{ "_nswap" },	/* size of largest swap device */
86#define VM_NSWDEV	3
87	{ "_nswdev" },	/* number of swap devices */
88#define VM_DMMAX	4
89	{ "_dmmax" },	/* maximum size of a swap block */
90#define	V_MOUNTLIST	5
91	{ "_mountlist" },	/* address of head of mount list. */
92#define V_NUMV		6
93	{ "_numvnodes" },
94#define	FNL_NFILE	7
95	{"_nfiles"},
96#define FNL_MAXFILE	8
97	{"_maxfiles"},
98#define NLMANDATORY FNL_MAXFILE	/* names up to here are mandatory */
99#define	SCONS		NLMANDATORY + 1
100	{ "_cons" },
101#define	SPTY		NLMANDATORY + 2
102	{ "_pt_tty" },
103#define	SNPTY		NLMANDATORY + 3
104	{ "_npty" },
105
106#ifdef hp300
107#define	SDCA	(SNPTY+1)
108	{ "_dca_tty" },
109#define	SNDCA	(SNPTY+2)
110	{ "_ndca" },
111#define	SDCM	(SNPTY+3)
112	{ "_dcm_tty" },
113#define	SNDCM	(SNPTY+4)
114	{ "_ndcm" },
115#define	SDCL	(SNPTY+5)
116	{ "_dcl_tty" },
117#define	SNDCL	(SNPTY+6)
118	{ "_ndcl" },
119#define	SITE	(SNPTY+7)
120	{ "_ite_tty" },
121#define	SNITE	(SNPTY+8)
122	{ "_nite" },
123#endif
124
125#ifdef mips
126#define SDC	(SNPTY+1)
127	{ "_dc_tty" },
128#define SNDC	(SNPTY+2)
129	{ "_dc_cnt" },
130#endif
131
132#ifdef __FreeBSD__
133#define SCCONS	(SNPTY+1)
134	{ "_sccons" },
135#define NSCCONS	(SNPTY+2)
136	{ "_nsccons" },
137#define SIO  (SNPTY+3)
138	{ "_sio_tty" },
139#define NSIO (SNPTY+4)
140	{ "_nsio_tty" },
141#define RC  (SNPTY+5)
142	{ "_rc_tty" },
143#define NRC (SNPTY+6)
144	{ "_nrc_tty" },
145#define CY  (SNPTY+7)
146	{ "_cy_tty" },
147#define NCY (SNPTY+8)
148	{ "_ncy_tty" },
149#define SI  (SNPTY+9)
150	{ "_si_tty" },
151#define NSI (SNPTY+10)
152	{ "_si_Nports" },
153#endif
154	{ "" }
155};
156
157int	usenumflag;
158int	totalflag;
159char	*nlistf	= NULL;
160char	*memf	= NULL;
161kvm_t	*kd;
162
163char	*usage;
164
165#define	SVAR(var) __STRING(var)	/* to force expansion */
166#define	KGET(idx, var)							\
167	KGET1(idx, &var, sizeof(var), SVAR(var))
168#define	KGET1(idx, p, s, msg)						\
169	KGET2(nl[idx].n_value, p, s, msg)
170#define	KGET2(addr, p, s, msg)						\
171	if (kvm_read(kd, (u_long)(addr), p, s) != s)			\
172		warnx("cannot read %s: %s", msg, kvm_geterr(kd))
173#define	KGETRET(addr, p, s, msg)					\
174	if (kvm_read(kd, (u_long)(addr), p, s) != s) {			\
175		warnx("cannot read %s: %s", msg, kvm_geterr(kd));	\
176		return (0);						\
177	}
178
179void	filemode __P((void));
180int	getfiles __P((char **, int *));
181struct mount *
182	getmnt __P((struct mount *));
183struct e_vnode *
184	kinfo_vnodes __P((int *));
185struct e_vnode *
186	loadvnodes __P((int *));
187void	mount_print __P((struct mount *));
188void	nfs_header __P((void));
189int	nfs_print __P((struct vnode *));
190void	swapmode __P((void));
191void	ttymode __P((void));
192void	ttyprt __P((struct tty *, int));
193void	ttytype __P((struct tty *, char *, int, int, int));
194void	ufs_header __P((void));
195int	ufs_print __P((struct vnode *));
196void	vnode_header __P((void));
197void	vnode_print __P((struct vnode *, struct vnode *));
198void	vnodemode __P((void));
199
200int
201main(argc, argv)
202	int argc;
203	char *argv[];
204{
205	extern char *optarg;
206	extern int optind;
207	int ch, i, quit, ret;
208	int fileflag, swapflag, ttyflag, vnodeflag;
209	char buf[_POSIX2_LINE_MAX],*opts;
210
211	fileflag = swapflag = ttyflag = vnodeflag = 0;
212
213	/* We will behave like good old swapinfo if thus invoked */
214	opts = strrchr(argv[0],'/');
215	if (opts)
216		opts++;
217	else
218		opts = argv[0];
219	if (!strcmp(opts,"swapinfo")) {
220		swapflag = 1;
221		opts = "kM:N:";
222		usage = "usage: swapinfo [-k] [-M core] [-N system]\n";
223	} else {
224		opts = "TM:N:fiknstv";
225		usage = "usage: pstat [-Tfknstv] [-M core] [-N system]\n";
226	}
227
228	while ((ch = getopt(argc, argv, opts)) != EOF)
229		switch (ch) {
230		case 'f':
231			fileflag = 1;
232			break;
233		case 'k':
234			putenv("BLOCKSIZE=1K");
235			break;
236		case 'M':
237			memf = optarg;
238			break;
239		case 'N':
240			nlistf = optarg;
241			break;
242		case 'n':
243			usenumflag = 1;
244			break;
245		case 's':
246			swapflag = 1;
247			break;
248		case 'T':
249			totalflag = 1;
250			break;
251		case 't':
252			ttyflag = 1;
253			break;
254		case 'v':
255		case 'i':		/* Backward compatibility. */
256			vnodeflag = 1;
257			break;
258		default:
259			(void)fprintf(stderr, usage);
260			exit(1);
261		}
262	argc -= optind;
263	argv += optind;
264
265	/*
266	 * Discard setgid privileges if not the running kernel so that bad
267	 * guys can't print interesting stuff from kernel memory.
268	 */
269	if (nlistf != NULL || memf != NULL)
270		(void)setgid(getgid());
271
272	if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0)
273		errx(1, "kvm_openfiles: %s", buf);
274	if ((ret = kvm_nlist(kd, nl)) != 0) {
275		if (ret == -1)
276			errx(1, "kvm_nlist: %s", kvm_geterr(kd));
277		for (i = quit = 0; i <= NLMANDATORY; i++)
278			if (!nl[i].n_value) {
279				quit = 1;
280				warnx("undefined symbol: %s\n", nl[i].n_name);
281			}
282		if (quit)
283			exit(1);
284	}
285	if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) {
286		(void)fprintf(stderr, usage);
287		exit(1);
288	}
289	if (fileflag || totalflag)
290		filemode();
291	if (vnodeflag || totalflag)
292		vnodemode();
293	if (ttyflag)
294		ttymode();
295	if (swapflag || totalflag)
296		swapmode();
297	exit (0);
298}
299
300struct e_vnode {
301	struct vnode *avnode;
302	struct vnode vnode;
303};
304
305void
306vnodemode()
307{
308	register struct e_vnode *e_vnodebase, *endvnode, *evp;
309	register struct vnode *vp;
310	register struct mount *maddr, *mp;
311	int numvnodes;
312
313	e_vnodebase = loadvnodes(&numvnodes);
314	if (totalflag) {
315		(void)printf("%7d vnodes\n", numvnodes);
316		return;
317	}
318	endvnode = e_vnodebase + numvnodes;
319	(void)printf("%d active vnodes\n", numvnodes);
320
321
322#define ST	mp->mnt_stat
323	maddr = NULL;
324	for (evp = e_vnodebase; evp < endvnode; evp++) {
325		vp = &evp->vnode;
326		if (vp->v_mount != maddr) {
327			/*
328			 * New filesystem
329			 */
330			if ((mp = getmnt(vp->v_mount)) == NULL)
331				continue;
332			maddr = vp->v_mount;
333			mount_print(mp);
334			vnode_header();
335			switch(ST.f_type) {
336			case MOUNT_UFS:
337			case MOUNT_MFS:
338				ufs_header();
339				break;
340			case MOUNT_NFS:
341				nfs_header();
342				break;
343			case MOUNT_NONE:
344			case MOUNT_MSDOS:
345			default:
346				break;
347			}
348			(void)printf("\n");
349		}
350		vnode_print(evp->avnode, vp);
351		switch(ST.f_type) {
352		case MOUNT_UFS:
353		case MOUNT_MFS:
354			ufs_print(vp);
355			break;
356		case MOUNT_NFS:
357			nfs_print(vp);
358			break;
359		case MOUNT_NONE:
360		case MOUNT_MSDOS:
361		default:
362			break;
363		}
364		(void)printf("\n");
365	}
366	free(e_vnodebase);
367}
368
369void
370vnode_header()
371{
372	(void)printf("ADDR     TYP VFLAG  USE HOLD");
373}
374
375void
376vnode_print(avnode, vp)
377	struct vnode *avnode;
378	struct vnode *vp;
379{
380	char *type, flags[16];
381	char *fp = flags;
382	register int flag;
383
384	/*
385	 * set type
386	 */
387	switch(vp->v_type) {
388	case VNON:
389		type = "non"; break;
390	case VREG:
391		type = "reg"; break;
392	case VDIR:
393		type = "dir"; break;
394	case VBLK:
395		type = "blk"; break;
396	case VCHR:
397		type = "chr"; break;
398	case VLNK:
399		type = "lnk"; break;
400	case VSOCK:
401		type = "soc"; break;
402	case VFIFO:
403		type = "fif"; break;
404	case VBAD:
405		type = "bad"; break;
406	default:
407		type = "unk"; break;
408	}
409	/*
410	 * gather flags
411	 */
412	flag = vp->v_flag;
413	if (flag & VROOT)
414		*fp++ = 'R';
415	if (flag & VTEXT)
416		*fp++ = 'T';
417	if (flag & VSYSTEM)
418		*fp++ = 'S';
419	if (flag & VXLOCK)
420		*fp++ = 'L';
421	if (flag & VXWANT)
422		*fp++ = 'W';
423	if (flag & VBWAIT)
424		*fp++ = 'B';
425	if (flag & VALIASED)
426		*fp++ = 'A';
427	if (flag == 0)
428		*fp++ = '-';
429	*fp = '\0';
430	(void)printf("%8x %s %5s %4d %4d",
431	    avnode, type, flags, vp->v_usecount, vp->v_holdcnt);
432}
433
434void
435ufs_header()
436{
437	(void)printf(" FILEID IFLAG RDEV|SZ");
438}
439
440int
441ufs_print(vp)
442	struct vnode *vp;
443{
444	register int flag;
445	struct inode inode, *ip = &inode;
446	char flagbuf[16], *flags = flagbuf;
447	char *name;
448	mode_t type;
449
450	KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
451	flag = ip->i_flag;
452	if (flag & IN_LOCKED)
453		*flags++ = 'L';
454	if (flag & IN_WANTED)
455		*flags++ = 'W';
456	if (flag & IN_RENAME)
457		*flags++ = 'R';
458	if (flag & IN_UPDATE)
459		*flags++ = 'U';
460	if (flag & IN_ACCESS)
461		*flags++ = 'A';
462	if (flag & IN_CHANGE)
463		*flags++ = 'C';
464	if (flag & IN_MODIFIED)
465		*flags++ = 'M';
466	if (flag & IN_SHLOCK)
467		*flags++ = 'S';
468	if (flag & IN_EXLOCK)
469		*flags++ = 'E';
470	if (flag & IN_LWAIT)
471		*flags++ = 'Z';
472	if (flag == 0)
473		*flags++ = '-';
474	*flags = '\0';
475
476	(void)printf(" %6d %5s", ip->i_number, flagbuf);
477	type = ip->i_mode & S_IFMT;
478	if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode))
479		if (usenumflag || ((name = devname(ip->i_rdev, type)) == NULL))
480			(void)printf("   %2d,%-2d",
481			    major(ip->i_rdev), minor(ip->i_rdev));
482		else
483			(void)printf(" %7s", name);
484	else
485		(void)printf(" %7qd", ip->i_size);
486	return (0);
487}
488
489void
490nfs_header()
491{
492	(void)printf(" FILEID NFLAG RDEV|SZ");
493}
494
495int
496nfs_print(vp)
497	struct vnode *vp;
498{
499	struct nfsnode nfsnode, *np = &nfsnode;
500	char flagbuf[16], *flags = flagbuf;
501	register int flag;
502	char *name;
503	mode_t type;
504
505	KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode");
506	flag = np->n_flag;
507	if (flag & NFLUSHWANT)
508		*flags++ = 'W';
509	if (flag & NFLUSHINPROG)
510		*flags++ = 'P';
511	if (flag & NMODIFIED)
512		*flags++ = 'M';
513	if (flag & NWRITEERR)
514		*flags++ = 'E';
515	if (flag & NQNFSNONCACHE)
516		*flags++ = 'X';
517	if (flag & NQNFSWRITE)
518		*flags++ = 'O';
519	if (flag & NQNFSEVICTED)
520		*flags++ = 'G';
521	if (flag == 0)
522		*flags++ = '-';
523	*flags = '\0';
524
525#define VT	np->n_vattr
526	(void)printf(" %6d %5s", VT.va_fileid, flagbuf);
527	type = VT.va_mode & S_IFMT;
528	if (S_ISCHR(VT.va_mode) || S_ISBLK(VT.va_mode))
529		if (usenumflag || ((name = devname(VT.va_rdev, type)) == NULL))
530			(void)printf("   %2d,%-2d",
531			    major(VT.va_rdev), minor(VT.va_rdev));
532		else
533			(void)printf(" %7s", name);
534	else
535		(void)printf(" %7qd", np->n_size);
536	return (0);
537}
538
539/*
540 * Given a pointer to a mount structure in kernel space,
541 * read it in and return a usable pointer to it.
542 */
543struct mount *
544getmnt(maddr)
545	struct mount *maddr;
546{
547	static struct mtab {
548		struct mtab *next;
549		struct mount *maddr;
550		struct mount mount;
551	} *mhead = NULL;
552	register struct mtab *mt;
553
554	for (mt = mhead; mt != NULL; mt = mt->next)
555		if (maddr == mt->maddr)
556			return (&mt->mount);
557	if ((mt = malloc(sizeof(struct mtab))) == NULL)
558		err(1, NULL);
559	KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table");
560	mt->maddr = maddr;
561	mt->next = mhead;
562	mhead = mt;
563	return (&mt->mount);
564}
565
566void
567mount_print(mp)
568	struct mount *mp;
569{
570	register int flags;
571	char *type;
572
573#define ST	mp->mnt_stat
574	(void)printf("*** MOUNT ");
575	switch (ST.f_type) {
576	case MOUNT_NONE:
577		type = "none";
578		break;
579	case MOUNT_UFS:
580		type = "ufs";
581		break;
582	case MOUNT_NFS:
583		type = "nfs";
584		break;
585	case MOUNT_MFS:
586		type = "mfs";
587		break;
588	case MOUNT_MSDOS:
589		type = "pc";
590		break;
591	default:
592		type = "unknown";
593		break;
594	}
595	(void)printf("%s %s on %s", type, ST.f_mntfromname, ST.f_mntonname);
596	if (flags = mp->mnt_flag) {
597		char *comma = "(";
598
599		putchar(' ');
600		/* user visable flags */
601		if (flags & MNT_RDONLY) {
602			(void)printf("%srdonly", comma);
603			flags &= ~MNT_RDONLY;
604			comma = ",";
605		}
606		if (flags & MNT_SYNCHRONOUS) {
607			(void)printf("%ssynchronous", comma);
608			flags &= ~MNT_SYNCHRONOUS;
609			comma = ",";
610		}
611		if (flags & MNT_NOEXEC) {
612			(void)printf("%snoexec", comma);
613			flags &= ~MNT_NOEXEC;
614			comma = ",";
615		}
616		if (flags & MNT_NOSUID) {
617			(void)printf("%snosuid", comma);
618			flags &= ~MNT_NOSUID;
619			comma = ",";
620		}
621		if (flags & MNT_NODEV) {
622			(void)printf("%snodev", comma);
623			flags &= ~MNT_NODEV;
624			comma = ",";
625		}
626		if (flags & MNT_EXPORTED) {
627			(void)printf("%sexport", comma);
628			flags &= ~MNT_EXPORTED;
629			comma = ",";
630		}
631		if (flags & MNT_EXRDONLY) {
632			(void)printf("%sexrdonly", comma);
633			flags &= ~MNT_EXRDONLY;
634			comma = ",";
635		}
636		if (flags & MNT_LOCAL) {
637			(void)printf("%slocal", comma);
638			flags &= ~MNT_LOCAL;
639			comma = ",";
640		}
641		if (flags & MNT_QUOTA) {
642			(void)printf("%squota", comma);
643			flags &= ~MNT_QUOTA;
644			comma = ",";
645		}
646		/* filesystem control flags */
647		if (flags & MNT_UPDATE) {
648			(void)printf("%supdate", comma);
649			flags &= ~MNT_UPDATE;
650			comma = ",";
651		}
652		if (flags & MNT_MLOCK) {
653			(void)printf("%slock", comma);
654			flags &= ~MNT_MLOCK;
655			comma = ",";
656		}
657		if (flags & MNT_MWAIT) {
658			(void)printf("%swait", comma);
659			flags &= ~MNT_MWAIT;
660			comma = ",";
661		}
662		if (flags & MNT_MPBUSY) {
663			(void)printf("%sbusy", comma);
664			flags &= ~MNT_MPBUSY;
665			comma = ",";
666		}
667		if (flags & MNT_MPWANT) {
668			(void)printf("%swant", comma);
669			flags &= ~MNT_MPWANT;
670			comma = ",";
671		}
672		if (flags & MNT_UNMOUNT) {
673			(void)printf("%sunmount", comma);
674			flags &= ~MNT_UNMOUNT;
675			comma = ",";
676		}
677		if (flags)
678			(void)printf("%sunknown_flags:%x", comma, flags);
679		(void)printf(")");
680	}
681	(void)printf("\n");
682#undef ST
683}
684
685struct e_vnode *
686loadvnodes(avnodes)
687	int *avnodes;
688{
689	int mib[2];
690	size_t copysize;
691	struct e_vnode *vnodebase;
692
693	if (memf != NULL) {
694		/*
695		 * do it by hand
696		 */
697		return (kinfo_vnodes(avnodes));
698	}
699	mib[0] = CTL_KERN;
700	mib[1] = KERN_VNODE;
701	if (sysctl(mib, 2, NULL, &copysize, NULL, 0) == -1)
702		err(1, "sysctl: KERN_VNODE");
703	if ((vnodebase = malloc(copysize)) == NULL)
704		err(1, NULL);
705	if (sysctl(mib, 2, vnodebase, &copysize, NULL, 0) == -1)
706		err(1, "sysctl: KERN_VNODE");
707	if (copysize % sizeof(struct e_vnode))
708		errx(1, "vnode size mismatch");
709	*avnodes = copysize / sizeof(struct e_vnode);
710
711	return (vnodebase);
712}
713
714/*
715 * simulate what a running kernel does in in kinfo_vnode
716 */
717struct e_vnode *
718kinfo_vnodes(avnodes)
719	int *avnodes;
720{
721	struct mntlist mountlist;
722	struct mount *mp, mount;
723	struct vnode *vp, vnode;
724	char *vbuf, *evbuf, *bp;
725	int num, numvnodes;
726
727#define VPTRSZ  sizeof(struct vnode *)
728#define VNODESZ sizeof(struct vnode)
729
730	KGET(V_NUMV, numvnodes);
731	if ((vbuf = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL)
732		err(1, NULL);
733	bp = vbuf;
734	evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ);
735	KGET(V_MOUNTLIST, mountlist);
736	for (num = 0, mp = mountlist.cqh_first; ; mp = mp->mnt_list.cqe_next) {
737		KGET2(mp, &mount, sizeof(mount), "mount entry");
738		for (vp = mount.mnt_vnodelist.lh_first;
739		    vp != NULL; vp = vp->v_mntvnodes.le_next) {
740			KGET2(vp, &vnode, sizeof(vnode), "vnode");
741			if ((bp + VPTRSZ + VNODESZ) > evbuf)
742				/* XXX - should realloc */
743				errx(1, "no more room for vnodes");
744			memmove(bp, &vp, VPTRSZ);
745			bp += VPTRSZ;
746			memmove(bp, &vnode, VNODESZ);
747			bp += VNODESZ;
748			num++;
749		}
750		if (mp == mountlist.cqh_last)
751			break;
752	}
753	*avnodes = num;
754	return ((struct e_vnode *)vbuf);
755}
756
757char hdr[]="  LINE RAW CAN OUT  HWT LWT     COL STATE  SESS  PGID DISC\n";
758int ttyspace = 128;
759
760void
761ttymode()
762{
763	struct tty *tty;
764
765	if ((tty = malloc(ttyspace * sizeof(*tty))) == NULL)
766		err(1, NULL);
767#ifndef hp300
768	if (nl[SCONS].n_type != 0) {
769		(void)printf("1 console\n");
770		KGET(SCONS, *tty);
771		(void)printf(hdr);
772		ttyprt(&tty[0], 0);
773	}
774#endif
775#ifdef vax
776	if (nl[SNQD].n_type != 0)
777		qdss();
778	if (nl[SNDZ].n_type != 0)
779		ttytype(tty, "dz", SDZ, SNDZ, 0);
780	if (nl[SNDH].n_type != 0)
781		ttytype(tty, "dh", SDH, SNDH, 0);
782	if (nl[SNDMF].n_type != 0)
783		ttytype(tty, "dmf", SDMF, SNDMF, 0);
784	if (nl[SNDHU].n_type != 0)
785		ttytype(tty, "dhu", SDHU, SNDHU, 0);
786	if (nl[SNDMZ].n_type != 0)
787		ttytype(tty, "dmz", SDMZ, SNDMZ, 0);
788#endif
789#ifdef tahoe
790	if (nl[SNVX].n_type != 0)
791		ttytype(tty, "vx", SVX, SNVX, 0);
792	if (nl[SNMP].n_type != 0)
793		ttytype(tty, "mp", SMP, SNMP, 0);
794#endif
795#ifdef hp300
796	if (nl[SNITE].n_type != 0)
797		ttytype(tty, "ite", SITE, SNITE, 0);
798	if (nl[SNDCA].n_type != 0)
799		ttytype(tty, "dca", SDCA, SNDCA, 0);
800	if (nl[SNDCM].n_type != 0)
801		ttytype(tty, "dcm", SDCM, SNDCM, 0);
802	if (nl[SNDCL].n_type != 0)
803		ttytype(tty, "dcl", SDCL, SNDCL, 0);
804#endif
805#ifdef mips
806	if (nl[SNDC].n_type != 0)
807		ttytype(tty, "dc", SDC, SNDC, 0);
808#endif
809#ifdef __FreeBSD__
810	if (nl[NSCCONS].n_type != 0)
811		ttytype(tty, "vty", SCCONS, NSCCONS, 0);
812	if (nl[NSIO].n_type != 0)
813		ttytype(tty, "sio", SIO, NSIO, 0);
814	if (nl[NRC].n_type != 0)
815		ttytype(tty, "rc", RC, NRC, 0);
816	if (nl[NCY].n_type != 0)
817		ttytype(tty, "cy", CY, NCY, 0);
818	if (nl[NSI].n_type != 0)
819		ttytype(tty, "si", SI, NSI, 1);
820#endif
821	if (nl[SNPTY].n_type != 0)
822		ttytype(tty, "pty", SPTY, SNPTY, 0);
823}
824
825void
826ttytype(tty, name, type, number, indir)
827	register struct tty *tty;
828	char *name;
829	int type, number, indir;
830{
831	register struct tty *tp;
832	int ntty;
833	struct tty **ttyaddr;
834
835	if (tty == NULL)
836		return;
837	KGET(number, ntty);
838	(void)printf("%d %s %s\n", ntty, name, (ntty == 1) ? "line" : "lines");
839	if (ntty > ttyspace) {
840		ttyspace = ntty;
841		if ((tty = realloc(tty, ttyspace * sizeof(*tty))) == 0)
842			err(1, NULL);
843	}
844	if (indir) {
845		KGET(type, ttyaddr);
846		KGET2(ttyaddr, tty, ntty * sizeof(struct tty), "tty structs");
847	} else {
848		KGET1(type, tty, ntty * sizeof(struct tty), "tty structs");
849	}
850	(void)printf(hdr);
851	for (tp = tty; tp < &tty[ntty]; tp++)
852		ttyprt(tp, tp - tty);
853}
854
855struct {
856	int flag;
857	char val;
858} ttystates[] = {
859#ifdef TS_WOPEN
860	{ TS_WOPEN,	'W'},
861#endif
862	{ TS_ISOPEN,	'O'},
863	{ TS_CARR_ON,	'C'},
864#ifdef TS_CONNECTED
865	{ TS_CONNECTED,	'c'},
866#endif
867	{ TS_TIMEOUT,	'T'},
868	{ TS_FLUSH,	'F'},
869	{ TS_BUSY,	'B'},
870#ifdef TS_ASLEEP
871	{ TS_ASLEEP,	'A'},
872#endif
873#ifdef TS_SO_OLOWAT
874	{ TS_SO_OLOWAT,	'A'},
875#endif
876#ifdef TS_SO_OCOMPLETE
877	{ TS_SO_OCOMPLETE, 'a'},
878#endif
879	{ TS_XCLUDE,	'X'},
880	{ TS_TTSTOP,	'S'},
881#ifdef TS_CAR_OFLOW
882	{ TS_CAR_OFLOW,	'm'},
883#endif
884#ifdef TS_CTS_OFLOW
885	{ TS_CTS_OFLOW,	'o'},
886#endif
887#ifdef TS_DSR_OFLOW
888	{ TS_DSR_OFLOW,	'd'},
889#endif
890	{ TS_TBLOCK,	'K'},
891	{ TS_ASYNC,	'Y'},
892	{ TS_BKSL,	'D'},
893	{ TS_ERASE,	'E'},
894	{ TS_LNCH,	'L'},
895	{ TS_TYPEN,	'P'},
896	{ TS_CNTTB,	'N'},
897#ifdef TS_CAN_BYPASS_L_RINT
898	{ TS_CAN_BYPASS_L_RINT, 'l'},
899#endif
900#ifdef TS_SNOOP
901	{ TS_SNOOP,     's'},
902#endif
903#ifdef TS_ZOMBIE
904	{ TS_ZOMBIE,	'Z'},
905#endif
906	{ 0,	       '\0'},
907};
908
909void
910ttyprt(tp, line)
911	register struct tty *tp;
912	int line;
913{
914	register int i, j;
915	pid_t pgid;
916	char *name, state[20];
917
918	if (usenumflag || tp->t_dev == 0 ||
919	   (name = devname(tp->t_dev, S_IFCHR)) == NULL)
920		(void)printf("%7d ", line);
921	else
922		(void)printf("%7s ", name);
923	(void)printf("%2d %3d ", tp->t_rawq.c_cc, tp->t_canq.c_cc);
924	(void)printf("%3d %4d %3d %7d ", tp->t_outq.c_cc,
925		tp->t_hiwat, tp->t_lowat, tp->t_column);
926	for (i = j = 0; ttystates[i].flag; i++)
927		if (tp->t_state&ttystates[i].flag)
928			state[j++] = ttystates[i].val;
929	if (j == 0)
930		state[j++] = '-';
931	state[j] = '\0';
932	(void)printf("%-4s %6x", state, (u_long)tp->t_session & ~KERNBASE);
933	pgid = 0;
934	if (tp->t_pgrp != NULL)
935		KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid");
936	(void)printf("%6d ", pgid);
937	switch (tp->t_line) {
938	case TTYDISC:
939		(void)printf("term\n");
940		break;
941	case NTTYDISC:
942		(void)printf("ntty\n");
943		break;
944	case TABLDISC:
945		(void)printf("tab\n");
946		break;
947	case SLIPDISC:
948		(void)printf("slip\n");
949		break;
950	case PPPDISC:
951		(void)printf("ppp\n");
952		break;
953	default:
954		(void)printf("%d\n", tp->t_line);
955		break;
956	}
957}
958
959void
960filemode()
961{
962	register struct file *fp;
963	struct file *addr;
964	char *buf, flagbuf[16], *fbp;
965	int len, maxfile, nfile;
966	static char *dtypes[] = { "???", "inode", "socket" };
967
968	KGET(FNL_MAXFILE, maxfile);
969	if (totalflag) {
970		KGET(FNL_NFILE, nfile);
971		(void)printf("%3d/%3d files\n", nfile, maxfile);
972		return;
973	}
974	if (getfiles(&buf, &len) == -1)
975		return;
976	/*
977	 * Getfiles returns in malloc'd memory a pointer to the first file
978	 * structure, and then an array of file structs (whose addresses are
979	 * derivable from the previous entry).
980	 */
981	addr = ((struct filelist *)buf)->lh_first;
982	fp = (struct file *)(buf + sizeof(struct filelist));
983	nfile = (len - sizeof(struct filelist)) / sizeof(struct file);
984
985	(void)printf("%d/%d open files\n", nfile, maxfile);
986	(void)printf("   LOC   TYPE    FLG     CNT  MSG    DATA    OFFSET\n");
987	for (; (char *)fp < buf + len; addr = fp->f_list.le_next, fp++) {
988		if ((unsigned)fp->f_type > DTYPE_SOCKET)
989			continue;
990		(void)printf("%x ", addr);
991		(void)printf("%-8.8s", dtypes[fp->f_type]);
992		fbp = flagbuf;
993		if (fp->f_flag & FREAD)
994			*fbp++ = 'R';
995		if (fp->f_flag & FWRITE)
996			*fbp++ = 'W';
997		if (fp->f_flag & FAPPEND)
998			*fbp++ = 'A';
999#ifdef FSHLOCK	/* currently gone */
1000		if (fp->f_flag & FSHLOCK)
1001			*fbp++ = 'S';
1002		if (fp->f_flag & FEXLOCK)
1003			*fbp++ = 'X';
1004#endif
1005		if (fp->f_flag & FASYNC)
1006			*fbp++ = 'I';
1007		*fbp = '\0';
1008		(void)printf("%6s  %3d", flagbuf, fp->f_count);
1009		(void)printf("  %3d", fp->f_msgcount);
1010		(void)printf("  %8.1x", fp->f_data);
1011		if (fp->f_offset < 0)
1012			(void)printf("  %qx\n", fp->f_offset);
1013		else
1014			(void)printf("  %qd\n", fp->f_offset);
1015	}
1016	free(buf);
1017}
1018
1019int
1020getfiles(abuf, alen)
1021	char **abuf;
1022	int *alen;
1023{
1024	size_t len;
1025	int mib[2];
1026	char *buf;
1027
1028	/*
1029	 * XXX
1030	 * Add emulation of KINFO_FILE here.
1031	 */
1032	if (memf != NULL)
1033		errx(1, "files on dead kernel, not implemented\n");
1034
1035	mib[0] = CTL_KERN;
1036	mib[1] = KERN_FILE;
1037	if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) {
1038		warn("sysctl: KERN_FILE");
1039		return (-1);
1040	}
1041	if ((buf = malloc(len)) == NULL)
1042		err(1, NULL);
1043	if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) {
1044		warn("sysctl: KERN_FILE");
1045		return (-1);
1046	}
1047	*abuf = buf;
1048	*alen = len;
1049	return (0);
1050}
1051
1052/*
1053 * swapmode is based on a program called swapinfo written
1054 * by Kevin Lahey <kml@rokkaku.atl.ga.us>.
1055 */
1056void
1057swapmode()
1058{
1059	char *header;
1060	int hlen, nswap, nswdev, dmmax;
1061	int i, div, avail, nfree, npfree, used;
1062	struct swdevt *sw;
1063	long blocksize, *perdev;
1064	struct rlist head;
1065	struct rlisthdr swaplist;
1066	struct rlist *swapptr;
1067	u_long ptr;
1068
1069	KGET(VM_NSWAP, nswap);
1070	KGET(VM_NSWDEV, nswdev);
1071	KGET(VM_DMMAX, dmmax);
1072	KGET1(VM_SWAPLIST, &swaplist, sizeof swaplist, "swaplist");
1073	if ((sw = malloc(nswdev * sizeof(*sw))) == NULL ||
1074	    (perdev = malloc(nswdev * sizeof(*perdev))) == NULL)
1075		err(1, "malloc");
1076	KGET1(VM_SWDEVT, &ptr, sizeof ptr, "swdevt");
1077	KGET2(ptr, sw, nswdev * sizeof(*sw), "*swdevt");
1078
1079	/* Count up swap space. */
1080	nfree = 0;
1081	memset(perdev, 0, nswdev * sizeof(*perdev));
1082	swapptr = swaplist.rlh_list;
1083	while (swapptr) {
1084		int	top, bottom, next_block;
1085
1086		KGET2(swapptr, &head, sizeof(struct rlist), "swapptr");
1087
1088		top = head.rl_end;
1089		bottom = head.rl_start;
1090
1091		nfree += top - bottom + 1;
1092
1093		/*
1094		 * Swap space is split up among the configured disks.
1095		 *
1096		 * For interleaved swap devices, the first dmmax blocks
1097		 * of swap space some from the first disk, the next dmmax
1098		 * blocks from the next, and so on up to nswap blocks.
1099		 *
1100		 * The list of free space joins adjacent free blocks,
1101		 * ignoring device boundries.  If we want to keep track
1102		 * of this information per device, we'll just have to
1103		 * extract it ourselves.
1104		 */
1105		while (top / dmmax != bottom / dmmax) {
1106			next_block = ((bottom + dmmax) / dmmax);
1107			perdev[(bottom / dmmax) % nswdev] +=
1108				next_block * dmmax - bottom;
1109			bottom = next_block * dmmax;
1110		}
1111		perdev[(bottom / dmmax) % nswdev] +=
1112			top - bottom + 1;
1113
1114		swapptr = head.rl_next;
1115	}
1116
1117	header = getbsize(&hlen, &blocksize);
1118	if (!totalflag)
1119		(void)printf("%-11s %*s %8s %8s %8s  %s\n",
1120		    "Device", hlen, header,
1121		    "Used", "Avail", "Capacity", "Type");
1122	div = blocksize / 512;
1123	avail = npfree = 0;
1124	for (i = 0; i < nswdev; i++) {
1125		int xsize, xfree;
1126
1127		/*
1128		 * Don't report statistics for partitions which have not
1129		 * yet been activated via swapon(8).
1130		 */
1131		if (!(sw[i].sw_flags & SW_FREED))
1132			continue;
1133
1134		if (!totalflag)
1135			if (sw[i].sw_dev != NODEV)
1136				(void)printf("/dev/%-6s %*d ",
1137					     devname(sw[i].sw_dev, S_IFBLK),
1138					     hlen, sw[i].sw_nblks / div);
1139			else
1140				(void)printf("[NFS swap]  %*d ",
1141					     hlen, sw[i].sw_nblks / div);
1142
1143		/* The first dmmax is never allocated to avoid trashing of
1144		 * disklabels
1145		 */
1146		xsize = sw[i].sw_nblks - dmmax;
1147		xfree = perdev[i];
1148		used = xsize - xfree;
1149		npfree++;
1150		avail += xsize;
1151		if (totalflag)
1152			continue;
1153		(void)printf("%8d %8d %5.0f%%    %s\n",
1154		    used / div, xfree / div,
1155		    (double)used / (double)xsize * 100.0,
1156		    (sw[i].sw_flags & SW_SEQUENTIAL) ?
1157			     "Sequential" : "Interleaved");
1158	}
1159
1160	/*
1161	 * If only one partition has been set up via swapon(8), we don't
1162	 * need to bother with totals.
1163	 */
1164	used = avail - nfree;
1165	free(sw);
1166	free(perdev);
1167	if (totalflag) {
1168		(void)printf("%dM/%dM swap space\n", used / 2048, avail / 2048);
1169		return;
1170	}
1171	if (npfree > 1) {
1172		(void)printf("%-11s %*d %8d %8d %5.0f%%\n",
1173		    "Total", hlen, avail / div, used / div, nfree / div,
1174		    (double)used / (double)avail * 100.0);
1175	}
1176}
1177