pstat.c revision 8495 
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/nfsnode.h>
58#include <sys/ioctl.h>
59#include <sys/ioctl_compat.h>	/* XXX NTTYDISC is too well hidden */
60#include <sys/tty.h>
61#include <sys/conf.h>
62#include <sys/rlist.h>
63
64#include <sys/sysctl.h>
65
66#include <err.h>
67#include <kvm.h>
68#include <limits.h>
69#include <nlist.h>
70#include <stdio.h>
71#include <stdlib.h>
72#include <string.h>
73#include <unistd.h>
74
75struct nlist nl[] = {
76#define VM_SWAPLIST	0
77	{ "_swaplist" },/* list of free swap areas */
78#define VM_SWDEVT	1
79	{ "_swdevt" },	/* list of swap devices and sizes */
80#define VM_NSWAP	2
81	{ "_nswap" },	/* size of largest swap device */
82#define VM_NSWDEV	3
83	{ "_nswdev" },	/* number of swap devices */
84#define VM_DMMAX	4
85	{ "_dmmax" },	/* maximum size of a swap block */
86#define	V_MOUNTLIST	5
87	{ "_mountlist" },	/* address of head of mount list. */
88#define V_NUMV		6
89	{ "_numvnodes" },
90#define	FNL_NFILE	7
91	{"_nfiles"},
92#define FNL_MAXFILE	8
93	{"_maxfiles"},
94#define NLMANDATORY FNL_MAXFILE	/* names up to here are mandatory */
95#define	SCONS		NLMANDATORY + 1
96	{ "_cons" },
97#define	SPTY		NLMANDATORY + 2
98	{ "_pt_tty" },
99#define	SNPTY		NLMANDATORY + 3
100	{ "_npty" },
101
102#ifdef hp300
103#define	SDCA	(SNPTY+1)
104	{ "_dca_tty" },
105#define	SNDCA	(SNPTY+2)
106	{ "_ndca" },
107#define	SDCM	(SNPTY+3)
108	{ "_dcm_tty" },
109#define	SNDCM	(SNPTY+4)
110	{ "_ndcm" },
111#define	SDCL	(SNPTY+5)
112	{ "_dcl_tty" },
113#define	SNDCL	(SNPTY+6)
114	{ "_ndcl" },
115#define	SITE	(SNPTY+7)
116	{ "_ite_tty" },
117#define	SNITE	(SNPTY+8)
118	{ "_nite" },
119#endif
120
121#ifdef mips
122#define SDC	(SNPTY+1)
123	{ "_dc_tty" },
124#define SNDC	(SNPTY+2)
125	{ "_dc_cnt" },
126#endif
127
128#ifdef __FreeBSD__
129#define SCCONS	(SNPTY+1)
130	{ "_sccons" },
131#define NSCCONS	(SNPTY+2)
132	{ "_nsccons" },
133#define SIO  (SNPTY+3)
134	{ "_sio_tty" },
135#define NSIO (SNPTY+4)
136	{ "_nsio_tty" },
137#define RC  (SNPTY+5)
138	{ "_rc_tty" },
139#define NRC (SNPTY+6)
140	{ "_nrc_tty" },
141#endif
142	{ "" }
143};
144
145int	usenumflag;
146int	totalflag;
147char	*nlistf	= NULL;
148char	*memf	= NULL;
149kvm_t	*kd;
150
151char	*usage;
152
153#define	SVAR(var) __STRING(var)	/* to force expansion */
154#define	KGET(idx, var)							\
155	KGET1(idx, &var, sizeof(var), SVAR(var))
156#define	KGET1(idx, p, s, msg)						\
157	KGET2(nl[idx].n_value, p, s, msg)
158#define	KGET2(addr, p, s, msg)						\
159	if (kvm_read(kd, (u_long)(addr), p, s) != s)			\
160		warnx("cannot read %s: %s", msg, kvm_geterr(kd))
161#define	KGETRET(addr, p, s, msg)					\
162	if (kvm_read(kd, (u_long)(addr), p, s) != s) {			\
163		warnx("cannot read %s: %s", msg, kvm_geterr(kd));	\
164		return (0);						\
165	}
166
167void	filemode __P((void));
168int	getfiles __P((char **, int *));
169struct mount *
170	getmnt __P((struct mount *));
171struct e_vnode *
172	kinfo_vnodes __P((int *));
173struct e_vnode *
174	loadvnodes __P((int *));
175void	mount_print __P((struct mount *));
176void	nfs_header __P((void));
177int	nfs_print __P((struct vnode *));
178void	swapmode __P((void));
179void	ttymode __P((void));
180void	ttyprt __P((struct tty *, int));
181void	ttytype __P((struct tty *, char *, int, int));
182void	ufs_header __P((void));
183int	ufs_print __P((struct vnode *));
184void	vnode_header __P((void));
185void	vnode_print __P((struct vnode *, struct vnode *));
186void	vnodemode __P((void));
187
188int
189main(argc, argv)
190	int argc;
191	char *argv[];
192{
193	extern char *optarg;
194	extern int optind;
195	int ch, i, quit, ret;
196	int fileflag, swapflag, ttyflag, vnodeflag;
197	char buf[_POSIX2_LINE_MAX],*opts;
198
199	fileflag = swapflag = ttyflag = vnodeflag = 0;
200
201	/* We will behave like good old swapinfo if thus invoked */
202	opts = strrchr(argv[0],'/');
203	if (opts)
204		opts++;
205	else
206		opts = argv[0];
207	if (!strcmp(opts,"swapinfo")) {
208		swapflag = 1;
209		opts = "k";
210		usage = "usage: swapinfo [-k] [-M core] [-N system]\n";
211	} else {
212		opts = "TM:N:fiknstv";
213		usage = "usage: pstat [-Tfknstv] [-M core] [-N system]\n";
214	}
215
216	while ((ch = getopt(argc, argv, opts)) != EOF)
217		switch (ch) {
218		case 'f':
219			fileflag = 1;
220			break;
221		case 'k':
222			putenv("BLOCKSIZE=1K");
223			break;
224		case 'M':
225			memf = optarg;
226			break;
227		case 'N':
228			nlistf = optarg;
229			break;
230		case 'n':
231			usenumflag = 1;
232			break;
233		case 's':
234			swapflag = 1;
235			break;
236		case 'T':
237			totalflag = 1;
238			break;
239		case 't':
240			ttyflag = 1;
241			break;
242		case 'v':
243		case 'i':		/* Backward compatibility. */
244			vnodeflag = 1;
245			break;
246		default:
247			(void)fprintf(stderr, usage);
248			exit(1);
249		}
250	argc -= optind;
251	argv += optind;
252
253	/*
254	 * Discard setgid privileges if not the running kernel so that bad
255	 * guys can't print interesting stuff from kernel memory.
256	 */
257	if (nlistf != NULL || memf != NULL)
258		(void)setgid(getgid());
259
260	if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0)
261		errx(1, "kvm_openfiles: %s", buf);
262	if ((ret = kvm_nlist(kd, nl)) != 0) {
263		if (ret == -1)
264			errx(1, "kvm_nlist: %s", kvm_geterr(kd));
265		for (i = quit = 0; i <= NLMANDATORY; i++)
266			if (!nl[i].n_value) {
267				quit = 1;
268				warnx("undefined symbol: %s\n", nl[i].n_name);
269			}
270		if (quit)
271			exit(1);
272	}
273	if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) {
274		(void)fprintf(stderr, usage);
275		exit(1);
276	}
277	if (fileflag || totalflag)
278		filemode();
279	if (vnodeflag || totalflag)
280		vnodemode();
281	if (ttyflag)
282		ttymode();
283	if (swapflag || totalflag)
284		swapmode();
285	exit (0);
286}
287
288struct e_vnode {
289	struct vnode *avnode;
290	struct vnode vnode;
291};
292
293void
294vnodemode()
295{
296	register struct e_vnode *e_vnodebase, *endvnode, *evp;
297	register struct vnode *vp;
298	register struct mount *maddr, *mp;
299	int numvnodes;
300
301	e_vnodebase = loadvnodes(&numvnodes);
302	if (totalflag) {
303		(void)printf("%7d vnodes\n", numvnodes);
304		return;
305	}
306	endvnode = e_vnodebase + numvnodes;
307	(void)printf("%d active vnodes\n", numvnodes);
308
309
310#define ST	mp->mnt_stat
311	maddr = NULL;
312	for (evp = e_vnodebase; evp < endvnode; evp++) {
313		vp = &evp->vnode;
314		if (vp->v_mount != maddr) {
315			/*
316			 * New filesystem
317			 */
318			if ((mp = getmnt(vp->v_mount)) == NULL)
319				continue;
320			maddr = vp->v_mount;
321			mount_print(mp);
322			vnode_header();
323			switch(ST.f_type) {
324			case MOUNT_UFS:
325			case MOUNT_MFS:
326				ufs_header();
327				break;
328			case MOUNT_NFS:
329				nfs_header();
330				break;
331			case MOUNT_NONE:
332			case MOUNT_MSDOS:
333			default:
334				break;
335			}
336			(void)printf("\n");
337		}
338		vnode_print(evp->avnode, vp);
339		switch(ST.f_type) {
340		case MOUNT_UFS:
341		case MOUNT_MFS:
342			ufs_print(vp);
343			break;
344		case MOUNT_NFS:
345			nfs_print(vp);
346			break;
347		case MOUNT_NONE:
348		case MOUNT_MSDOS:
349		default:
350			break;
351		}
352		(void)printf("\n");
353	}
354	free(e_vnodebase);
355}
356
357void
358vnode_header()
359{
360	(void)printf("ADDR     TYP VFLAG  USE HOLD");
361}
362
363void
364vnode_print(avnode, vp)
365	struct vnode *avnode;
366	struct vnode *vp;
367{
368	char *type, flags[16];
369	char *fp = flags;
370	register int flag;
371
372	/*
373	 * set type
374	 */
375	switch(vp->v_type) {
376	case VNON:
377		type = "non"; break;
378	case VREG:
379		type = "reg"; break;
380	case VDIR:
381		type = "dir"; break;
382	case VBLK:
383		type = "blk"; break;
384	case VCHR:
385		type = "chr"; break;
386	case VLNK:
387		type = "lnk"; break;
388	case VSOCK:
389		type = "soc"; break;
390	case VFIFO:
391		type = "fif"; break;
392	case VBAD:
393		type = "bad"; break;
394	default:
395		type = "unk"; break;
396	}
397	/*
398	 * gather flags
399	 */
400	flag = vp->v_flag;
401	if (flag & VROOT)
402		*fp++ = 'R';
403	if (flag & VTEXT)
404		*fp++ = 'T';
405	if (flag & VSYSTEM)
406		*fp++ = 'S';
407	if (flag & VXLOCK)
408		*fp++ = 'L';
409	if (flag & VXWANT)
410		*fp++ = 'W';
411	if (flag & VBWAIT)
412		*fp++ = 'B';
413	if (flag & VALIASED)
414		*fp++ = 'A';
415	if (flag == 0)
416		*fp++ = '-';
417	*fp = '\0';
418	(void)printf("%8x %s %5s %4d %4d",
419	    avnode, type, flags, vp->v_usecount, vp->v_holdcnt);
420}
421
422void
423ufs_header()
424{
425	(void)printf(" FILEID IFLAG RDEV|SZ");
426}
427
428int
429ufs_print(vp)
430	struct vnode *vp;
431{
432	register int flag;
433	struct inode inode, *ip = &inode;
434	char flagbuf[16], *flags = flagbuf;
435	char *name;
436	mode_t type;
437
438	KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
439	flag = ip->i_flag;
440	if (flag & IN_LOCKED)
441		*flags++ = 'L';
442	if (flag & IN_WANTED)
443		*flags++ = 'W';
444	if (flag & IN_RENAME)
445		*flags++ = 'R';
446	if (flag & IN_UPDATE)
447		*flags++ = 'U';
448	if (flag & IN_ACCESS)
449		*flags++ = 'A';
450	if (flag & IN_CHANGE)
451		*flags++ = 'C';
452	if (flag & IN_MODIFIED)
453		*flags++ = 'M';
454	if (flag & IN_SHLOCK)
455		*flags++ = 'S';
456	if (flag & IN_EXLOCK)
457		*flags++ = 'E';
458	if (flag & IN_LWAIT)
459		*flags++ = 'Z';
460	if (flag == 0)
461		*flags++ = '-';
462	*flags = '\0';
463
464	(void)printf(" %6d %5s", ip->i_number, flagbuf);
465	type = ip->i_mode & S_IFMT;
466	if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode))
467		if (usenumflag || ((name = devname(ip->i_rdev, type)) == NULL))
468			(void)printf("   %2d,%-2d",
469			    major(ip->i_rdev), minor(ip->i_rdev));
470		else
471			(void)printf(" %7s", name);
472	else
473		(void)printf(" %7qd", ip->i_size);
474	return (0);
475}
476
477void
478nfs_header()
479{
480	(void)printf(" FILEID NFLAG RDEV|SZ");
481}
482
483int
484nfs_print(vp)
485	struct vnode *vp;
486{
487	struct nfsnode nfsnode, *np = &nfsnode;
488	char flagbuf[16], *flags = flagbuf;
489	register int flag;
490	char *name;
491	mode_t type;
492
493	KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode");
494	flag = np->n_flag;
495	if (flag & NFLUSHWANT)
496		*flags++ = 'W';
497	if (flag & NFLUSHINPROG)
498		*flags++ = 'P';
499	if (flag & NMODIFIED)
500		*flags++ = 'M';
501	if (flag & NWRITEERR)
502		*flags++ = 'E';
503	if (flag & NQNFSNONCACHE)
504		*flags++ = 'X';
505	if (flag & NQNFSWRITE)
506		*flags++ = 'O';
507	if (flag & NQNFSEVICTED)
508		*flags++ = 'G';
509	if (flag == 0)
510		*flags++ = '-';
511	*flags = '\0';
512
513#define VT	np->n_vattr
514	(void)printf(" %6d %5s", VT.va_fileid, flagbuf);
515	type = VT.va_mode & S_IFMT;
516	if (S_ISCHR(VT.va_mode) || S_ISBLK(VT.va_mode))
517		if (usenumflag || ((name = devname(VT.va_rdev, type)) == NULL))
518			(void)printf("   %2d,%-2d",
519			    major(VT.va_rdev), minor(VT.va_rdev));
520		else
521			(void)printf(" %7s", name);
522	else
523		(void)printf(" %7qd", np->n_size);
524	return (0);
525}
526
527/*
528 * Given a pointer to a mount structure in kernel space,
529 * read it in and return a usable pointer to it.
530 */
531struct mount *
532getmnt(maddr)
533	struct mount *maddr;
534{
535	static struct mtab {
536		struct mtab *next;
537		struct mount *maddr;
538		struct mount mount;
539	} *mhead = NULL;
540	register struct mtab *mt;
541
542	for (mt = mhead; mt != NULL; mt = mt->next)
543		if (maddr == mt->maddr)
544			return (&mt->mount);
545	if ((mt = malloc(sizeof(struct mtab))) == NULL)
546		err(1, NULL);
547	KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table");
548	mt->maddr = maddr;
549	mt->next = mhead;
550	mhead = mt;
551	return (&mt->mount);
552}
553
554void
555mount_print(mp)
556	struct mount *mp;
557{
558	register int flags;
559	char *type;
560
561#define ST	mp->mnt_stat
562	(void)printf("*** MOUNT ");
563	switch (ST.f_type) {
564	case MOUNT_NONE:
565		type = "none";
566		break;
567	case MOUNT_UFS:
568		type = "ufs";
569		break;
570	case MOUNT_NFS:
571		type = "nfs";
572		break;
573	case MOUNT_MFS:
574		type = "mfs";
575		break;
576	case MOUNT_MSDOS:
577		type = "pc";
578		break;
579	default:
580		type = "unknown";
581		break;
582	}
583	(void)printf("%s %s on %s", type, ST.f_mntfromname, ST.f_mntonname);
584	if (flags = mp->mnt_flag) {
585		char *comma = "(";
586
587		putchar(' ');
588		/* user visable flags */
589		if (flags & MNT_RDONLY) {
590			(void)printf("%srdonly", comma);
591			flags &= ~MNT_RDONLY;
592			comma = ",";
593		}
594		if (flags & MNT_SYNCHRONOUS) {
595			(void)printf("%ssynchronous", comma);
596			flags &= ~MNT_SYNCHRONOUS;
597			comma = ",";
598		}
599		if (flags & MNT_NOEXEC) {
600			(void)printf("%snoexec", comma);
601			flags &= ~MNT_NOEXEC;
602			comma = ",";
603		}
604		if (flags & MNT_NOSUID) {
605			(void)printf("%snosuid", comma);
606			flags &= ~MNT_NOSUID;
607			comma = ",";
608		}
609		if (flags & MNT_NODEV) {
610			(void)printf("%snodev", comma);
611			flags &= ~MNT_NODEV;
612			comma = ",";
613		}
614		if (flags & MNT_EXPORTED) {
615			(void)printf("%sexport", comma);
616			flags &= ~MNT_EXPORTED;
617			comma = ",";
618		}
619		if (flags & MNT_EXRDONLY) {
620			(void)printf("%sexrdonly", comma);
621			flags &= ~MNT_EXRDONLY;
622			comma = ",";
623		}
624		if (flags & MNT_LOCAL) {
625			(void)printf("%slocal", comma);
626			flags &= ~MNT_LOCAL;
627			comma = ",";
628		}
629		if (flags & MNT_QUOTA) {
630			(void)printf("%squota", comma);
631			flags &= ~MNT_QUOTA;
632			comma = ",";
633		}
634		/* filesystem control flags */
635		if (flags & MNT_UPDATE) {
636			(void)printf("%supdate", comma);
637			flags &= ~MNT_UPDATE;
638			comma = ",";
639		}
640		if (flags & MNT_MLOCK) {
641			(void)printf("%slock", comma);
642			flags &= ~MNT_MLOCK;
643			comma = ",";
644		}
645		if (flags & MNT_MWAIT) {
646			(void)printf("%swait", comma);
647			flags &= ~MNT_MWAIT;
648			comma = ",";
649		}
650		if (flags & MNT_MPBUSY) {
651			(void)printf("%sbusy", comma);
652			flags &= ~MNT_MPBUSY;
653			comma = ",";
654		}
655		if (flags & MNT_MPWANT) {
656			(void)printf("%swant", comma);
657			flags &= ~MNT_MPWANT;
658			comma = ",";
659		}
660		if (flags & MNT_UNMOUNT) {
661			(void)printf("%sunmount", comma);
662			flags &= ~MNT_UNMOUNT;
663			comma = ",";
664		}
665		if (flags)
666			(void)printf("%sunknown_flags:%x", comma, flags);
667		(void)printf(")");
668	}
669	(void)printf("\n");
670#undef ST
671}
672
673struct e_vnode *
674loadvnodes(avnodes)
675	int *avnodes;
676{
677	int mib[2];
678	size_t copysize;
679	struct e_vnode *vnodebase;
680
681	if (memf != NULL) {
682		/*
683		 * do it by hand
684		 */
685		return (kinfo_vnodes(avnodes));
686	}
687	mib[0] = CTL_KERN;
688	mib[1] = KERN_VNODE;
689	if (sysctl(mib, 2, NULL, &copysize, NULL, 0) == -1)
690		err(1, "sysctl: KERN_VNODE");
691	if ((vnodebase = malloc(copysize)) == NULL)
692		err(1, NULL);
693	if (sysctl(mib, 2, vnodebase, &copysize, NULL, 0) == -1)
694		err(1, "sysctl: KERN_VNODE");
695	if (copysize % sizeof(struct e_vnode))
696		errx(1, "vnode size mismatch");
697	*avnodes = copysize / sizeof(struct e_vnode);
698
699	return (vnodebase);
700}
701
702/*
703 * simulate what a running kernel does in in kinfo_vnode
704 */
705struct e_vnode *
706kinfo_vnodes(avnodes)
707	int *avnodes;
708{
709	struct mntlist mountlist;
710	struct mount *mp, mount;
711	struct vnode *vp, vnode;
712	char *vbuf, *evbuf, *bp;
713	int num, numvnodes;
714
715#define VPTRSZ  sizeof(struct vnode *)
716#define VNODESZ sizeof(struct vnode)
717
718	KGET(V_NUMV, numvnodes);
719	if ((vbuf = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL)
720		err(1, NULL);
721	bp = vbuf;
722	evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ);
723	KGET(V_MOUNTLIST, mountlist);
724	for (num = 0, mp = mountlist.tqh_first;
725	    mp != NULL; mp = mp->mnt_list.tqe_next) {
726		KGET2(mp, &mount, sizeof(mount), "mount entry");
727		for (vp = mount.mnt_vnodelist.lh_first;
728		    vp != NULL; vp = vp->v_mntvnodes.le_next) {
729			KGET2(vp, &vnode, sizeof(vnode), "vnode");
730			if ((bp + VPTRSZ + VNODESZ) > evbuf)
731				/* XXX - should realloc */
732				errx(1, "no more room for vnodes");
733			memmove(bp, &vp, VPTRSZ);
734			bp += VPTRSZ;
735			memmove(bp, &vnode, VNODESZ);
736			bp += VNODESZ;
737			num++;
738		}
739	}
740	*avnodes = num;
741	return ((struct e_vnode *)vbuf);
742}
743
744char hdr[]="  LINE RAW CAN OUT  HWT LWT     COL STATE  SESS  PGID DISC\n";
745int ttyspace = 128;
746
747void
748ttymode()
749{
750	struct tty *tty;
751
752	if ((tty = malloc(ttyspace * sizeof(*tty))) == NULL)
753		err(1, NULL);
754#ifndef hp300
755	if (nl[SCONS].n_type != 0) {
756		(void)printf("1 console\n");
757		KGET(SCONS, *tty);
758		(void)printf(hdr);
759		ttyprt(&tty[0], 0);
760	}
761#endif
762#ifdef vax
763	if (nl[SNQD].n_type != 0)
764		qdss();
765	if (nl[SNDZ].n_type != 0)
766		ttytype(tty, "dz", SDZ, SNDZ);
767	if (nl[SNDH].n_type != 0)
768		ttytype(tty, "dh", SDH, SNDH);
769	if (nl[SNDMF].n_type != 0)
770		ttytype(tty, "dmf", SDMF, SNDMF);
771	if (nl[SNDHU].n_type != 0)
772		ttytype(tty, "dhu", SDHU, SNDHU);
773	if (nl[SNDMZ].n_type != 0)
774		ttytype(tty, "dmz", SDMZ, SNDMZ);
775#endif
776#ifdef tahoe
777	if (nl[SNVX].n_type != 0)
778		ttytype(tty, "vx", SVX, SNVX);
779	if (nl[SNMP].n_type != 0)
780		ttytype(tty, "mp", SMP, SNMP);
781#endif
782#ifdef hp300
783	if (nl[SNITE].n_type != 0)
784		ttytype(tty, "ite", SITE, SNITE);
785	if (nl[SNDCA].n_type != 0)
786		ttytype(tty, "dca", SDCA, SNDCA);
787	if (nl[SNDCM].n_type != 0)
788		ttytype(tty, "dcm", SDCM, SNDCM);
789	if (nl[SNDCL].n_type != 0)
790		ttytype(tty, "dcl", SDCL, SNDCL);
791#endif
792#ifdef mips
793	if (nl[SNDC].n_type != 0)
794		ttytype(tty, "dc", SDC, SNDC);
795#endif
796#ifdef __FreeBSD__
797	if (nl[NSCCONS].n_type != 0)
798		ttytype(tty, "vty", SCCONS, NSCCONS);
799	if (nl[NSIO].n_type != 0)
800		ttytype(tty, "sio", SIO, NSIO);
801	if (nl[NRC].n_type != 0)
802		ttytype(tty, "rc", RC, NRC);
803#endif
804	if (nl[SNPTY].n_type != 0)
805		ttytype(tty, "pty", SPTY, SNPTY);
806}
807
808void
809ttytype(tty, name, type, number)
810	register struct tty *tty;
811	char *name;
812	int type, number;
813{
814	register struct tty *tp;
815	int ntty;
816
817	if (tty == NULL)
818		return;
819	KGET(number, ntty);
820	(void)printf("%d %s %s\n", ntty, name, (ntty == 1) ? "line" : "lines");
821	if (ntty > ttyspace) {
822		ttyspace = ntty;
823		if ((tty = realloc(tty, ttyspace * sizeof(*tty))) == 0)
824			err(1, NULL);
825	}
826	KGET1(type, tty, ntty * sizeof(struct tty), "tty structs");
827	(void)printf(hdr);
828	for (tp = tty; tp < &tty[ntty]; tp++)
829		ttyprt(tp, tp - tty);
830}
831
832struct {
833	int flag;
834	char val;
835} ttystates[] = {
836	{ TS_WOPEN,	'W'},
837	{ TS_ISOPEN,	'O'},
838	{ TS_CARR_ON,	'C'},
839	{ TS_TIMEOUT,	'T'},
840	{ TS_FLUSH,	'F'},
841	{ TS_BUSY,	'B'},
842	{ TS_ASLEEP,	'A'},
843	{ TS_XCLUDE,	'X'},
844	{ TS_TTSTOP,	'S'},
845	{ TS_TBLOCK,	'K'},
846	{ TS_ASYNC,	'Y'},
847	{ TS_BKSL,	'D'},
848	{ TS_ERASE,	'E'},
849	{ TS_LNCH,	'L'},
850	{ TS_TYPEN,	'P'},
851	{ TS_CNTTB,	'N'},
852#ifdef __FreeBSD__
853	{ TS_SNOOP,     's'},
854	{ TS_CAN_BYPASS_L_RINT, 'l'},
855#endif
856	{ 0,	       '\0'},
857};
858
859void
860ttyprt(tp, line)
861	register struct tty *tp;
862	int line;
863{
864	register int i, j;
865	pid_t pgid;
866	char *name, state[20];
867
868	if (usenumflag || tp->t_dev == 0 ||
869	   (name = devname(tp->t_dev, S_IFCHR)) == NULL)
870		(void)printf("%7d ", line);
871	else
872		(void)printf("%7s ", name);
873	(void)printf("%2d %3d ", tp->t_rawq.c_cc, tp->t_canq.c_cc);
874	(void)printf("%3d %4d %3d %7d ", tp->t_outq.c_cc,
875		tp->t_hiwat, tp->t_lowat, tp->t_column);
876	for (i = j = 0; ttystates[i].flag; i++)
877		if (tp->t_state&ttystates[i].flag)
878			state[j++] = ttystates[i].val;
879	if (j == 0)
880		state[j++] = '-';
881	state[j] = '\0';
882	(void)printf("%-4s %6x", state, (u_long)tp->t_session & ~KERNBASE);
883	pgid = 0;
884	if (tp->t_pgrp != NULL)
885		KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid");
886	(void)printf("%6d ", pgid);
887	switch (tp->t_line) {
888	case TTYDISC:
889		(void)printf("term\n");
890		break;
891	case NTTYDISC:
892		(void)printf("ntty\n");
893		break;
894	case TABLDISC:
895		(void)printf("tab\n");
896		break;
897	case SLIPDISC:
898		(void)printf("slip\n");
899		break;
900	case PPPDISC:
901		(void)printf("ppp\n");
902		break;
903	default:
904		(void)printf("%d\n", tp->t_line);
905		break;
906	}
907}
908
909void
910filemode()
911{
912	register struct file *fp;
913	struct file *addr;
914	char *buf, flagbuf[16], *fbp;
915	int len, maxfile, nfile;
916	static char *dtypes[] = { "???", "inode", "socket" };
917
918	KGET(FNL_MAXFILE, maxfile);
919	if (totalflag) {
920		KGET(FNL_NFILE, nfile);
921		(void)printf("%3d/%3d files\n", nfile, maxfile);
922		return;
923	}
924	if (getfiles(&buf, &len) == -1)
925		return;
926	/*
927	 * Getfiles returns in malloc'd memory a pointer to the first file
928	 * structure, and then an array of file structs (whose addresses are
929	 * derivable from the previous entry).
930	 */
931	addr = *((struct file **)buf);
932	fp = (struct file *)(buf + sizeof(struct file *));
933	nfile = (len - sizeof(struct file *)) / sizeof(struct file);
934
935	(void)printf("%d/%d open files\n", nfile, maxfile);
936	(void)printf("   LOC   TYPE    FLG     CNT  MSG    DATA    OFFSET\n");
937	for (; (char *)fp < buf + len; addr = fp->f_filef, fp++) {
938		if ((unsigned)fp->f_type > DTYPE_SOCKET)
939			continue;
940		(void)printf("%x ", addr);
941		(void)printf("%-8.8s", dtypes[fp->f_type]);
942		fbp = flagbuf;
943		if (fp->f_flag & FREAD)
944			*fbp++ = 'R';
945		if (fp->f_flag & FWRITE)
946			*fbp++ = 'W';
947		if (fp->f_flag & FAPPEND)
948			*fbp++ = 'A';
949#ifdef FSHLOCK	/* currently gone */
950		if (fp->f_flag & FSHLOCK)
951			*fbp++ = 'S';
952		if (fp->f_flag & FEXLOCK)
953			*fbp++ = 'X';
954#endif
955		if (fp->f_flag & FASYNC)
956			*fbp++ = 'I';
957		*fbp = '\0';
958		(void)printf("%6s  %3d", flagbuf, fp->f_count);
959		(void)printf("  %3d", fp->f_msgcount);
960		(void)printf("  %8.1x", fp->f_data);
961		if (fp->f_offset < 0)
962			(void)printf("  %qx\n", fp->f_offset);
963		else
964			(void)printf("  %qd\n", fp->f_offset);
965	}
966	free(buf);
967}
968
969int
970getfiles(abuf, alen)
971	char **abuf;
972	int *alen;
973{
974	size_t len;
975	int mib[2];
976	char *buf;
977
978	/*
979	 * XXX
980	 * Add emulation of KINFO_FILE here.
981	 */
982	if (memf != NULL)
983		errx(1, "files on dead kernel, not implemented\n");
984
985	mib[0] = CTL_KERN;
986	mib[1] = KERN_FILE;
987	if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) {
988		warn("sysctl: KERN_FILE");
989		return (-1);
990	}
991	if ((buf = malloc(len)) == NULL)
992		err(1, NULL);
993	if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) {
994		warn("sysctl: KERN_FILE");
995		return (-1);
996	}
997	*abuf = buf;
998	*alen = len;
999	return (0);
1000}
1001
1002/*
1003 * swapmode is based on a program called swapinfo written
1004 * by Kevin Lahey <kml@rokkaku.atl.ga.us>.
1005 */
1006void
1007swapmode()
1008{
1009	char *header;
1010	int hlen, nswap, nswdev, dmmax;
1011	int i, div, avail, nfree, npfree, used;
1012	struct swdevt *sw;
1013	long blocksize, *perdev;
1014	struct rlist head;
1015	struct rlist *swaplist;
1016
1017	KGET(VM_NSWAP, nswap);
1018	KGET(VM_NSWDEV, nswdev);
1019	KGET(VM_DMMAX, dmmax);
1020	KGET(VM_SWAPLIST, swaplist);
1021	if ((sw = malloc(nswdev * sizeof(*sw))) == NULL ||
1022	    (perdev = malloc(nswdev * sizeof(*perdev))) == NULL)
1023		err(1, "malloc");
1024	KGET1(VM_SWDEVT, sw, nswdev * sizeof(*sw), "swdevt");
1025
1026	/* Count up swap space. */
1027	nfree = 0;
1028	memset(perdev, 0, nswdev * sizeof(*perdev));
1029	while (swaplist) {
1030		int	top, bottom, next_block;
1031
1032		KGET2(swaplist, &head, sizeof(struct rlist), "swaplist");
1033
1034		top = head.rl_end;
1035		bottom = head.rl_start;
1036
1037		nfree += top - bottom + 1;
1038
1039		/*
1040		 * Swap space is split up among the configured disks.
1041		 *
1042		 * For interleaved swap devices, the first dmmax blocks
1043		 * of swap space some from the first disk, the next dmmax
1044		 * blocks from the next, and so on up to nswap blocks.
1045		 *
1046		 * The list of free space joins adjacent free blocks,
1047		 * ignoring device boundries.  If we want to keep track
1048		 * of this information per device, we'll just have to
1049		 * extract it ourselves.
1050		 */
1051		while (top / dmmax != bottom / dmmax) {
1052			next_block = ((bottom + dmmax) / dmmax);
1053			perdev[(bottom / dmmax) % nswdev] +=
1054				next_block * dmmax - bottom;
1055			bottom = next_block * dmmax;
1056		}
1057		perdev[(bottom / dmmax) % nswdev] +=
1058			top - bottom + 1;
1059
1060		swaplist = head.rl_next;
1061	}
1062
1063	header = getbsize(&hlen, &blocksize);
1064	if (!totalflag)
1065		(void)printf("%-11s %*s %8s %8s %8s  %s\n",
1066		    "Device", hlen, header,
1067		    "Used", "Avail", "Capacity", "Type");
1068	div = blocksize / 512;
1069	avail = npfree = 0;
1070	for (i = 0; i < nswdev; i++) {
1071		int xsize, xfree;
1072
1073		/*
1074		 * Don't report statistics for partitions which have not
1075		 * yet been activated via swapon(8).
1076		 */
1077		if (!(sw[i].sw_flags & SW_FREED))
1078			continue;
1079
1080		if (!totalflag)
1081			(void)printf("/dev/%-6s %*d ",
1082			    devname(sw[i].sw_dev, S_IFBLK),
1083			    hlen, sw[i].sw_nblks / div);
1084
1085		xsize = sw[i].sw_nblks;
1086		xfree = perdev[i];
1087		used = xsize - xfree;
1088		npfree++;
1089		avail += xsize;
1090		if (totalflag)
1091			continue;
1092		(void)printf("%8d %8d %5.0f%%    %s\n",
1093		    used / div, xfree / div,
1094		    (double)used / (double)xsize * 100.0,
1095		    (sw[i].sw_flags & SW_SEQUENTIAL) ?
1096			     "Sequential" : "Interleaved");
1097	}
1098
1099	/*
1100	 * If only one partition has been set up via swapon(8), we don't
1101	 * need to bother with totals.
1102	 */
1103	used = avail - nfree;
1104	if (totalflag) {
1105		(void)printf("%dM/%dM swap space\n", used / 2048, avail / 2048);
1106		return;
1107	}
1108	if (npfree > 1) {
1109		(void)printf("%-11s %*d %8d %8d %5.0f%%\n",
1110		    "Total", hlen, avail / div, used / div, nfree / div,
1111		    (double)used / (double)avail * 100.0);
1112	}
1113}
1114