2 * Copyright (c) 1980, 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
33 * @(#) Copyright (c) 1980, 1991, 1993, 1994 The Regents of the University of California. All rights reserved.
34 * @(#)pstat.c 8.16 (Berkeley) 5/9/95
35 * $FreeBSD: src/usr.sbin/pstat/pstat.c,v 1.49.2.5 2002/07/12 09:12:49 des Exp $
36 * $DragonFly: src/usr.sbin/pstat/pstat.c,v 1.22 2008/03/04 18:10:44 swildner Exp $
39 #define _KERNEL_STRUCTURES
41 #include <sys/param.h>
43 #include <sys/vnode.h>
44 #include <sys/ucred.h>
46 #include <vfs/ufs/quota.h>
47 #include <vfs/ufs/inode.h>
48 #include <sys/mount.h>
50 #include <sys/namei.h>
51 #include <vfs/union/union.h>
53 #include <nfs/rpcv2.h>
54 #include <nfs/nfsproto.h>
56 #include <nfs/nfsnode.h>
57 #include <sys/ioctl.h>
58 #include <sys/ioctl_compat.h> /* XXX NTTYDISC is too well hidden */
61 #include <sys/blist.h>
63 #include <sys/kinfo.h>
65 #include <sys/sysctl.h>
78 # define KCORE_KINFO_WRAPPER
95 const size_t NL_LAST_MANDATORY = NL_NUMVNODES;
98 { "_mountlist", 0, 0, 0, 0 }, /* address of head of mount list. */
99 { "_numvnodes", 0, 0, 0, 0 },
100 { "_rc_tty", 0, 0, 0, 0 },
101 { "_nrc_tty", 0, 0, 0, 0 },
102 { "_cy_tty", 0, 0, 0, 0 },
103 { "_ncy_tty", 0, 0, 0, 0 },
104 { "_si__tty", 0, 0, 0, 0 },
105 { "_si_Nports", 0, 0, 0, 0 },
116 const char *usagestr;
122 { MNT_RDONLY, "rdonly" },
123 { MNT_SYNCHRONOUS, "sync" },
124 { MNT_NOEXEC, "noexec" },
125 { MNT_NOSUID, "nosuid" },
126 { MNT_NODEV, "nodev" },
127 { MNT_UNION, "union" },
128 { MNT_ASYNC, "async" },
129 { MNT_SUIDDIR, "suiddir" },
130 { MNT_SOFTDEP, "softdep" },
131 { MNT_NOSYMFOLLOW, "nosymfollow" },
132 { MNT_NOATIME, "noatime" },
133 { MNT_NOCLUSTERR, "noclusterread" },
134 { MNT_NOCLUSTERW, "noclusterwrite" },
135 { MNT_EXRDONLY, "exrdonly" },
136 { MNT_EXPORTED, "exported" },
137 { MNT_DEFEXPORTED, "defexported" },
138 { MNT_EXPORTANON, "exportanon" },
139 { MNT_EXKERB, "exkerb" },
140 { MNT_EXPUBLIC, "public" },
141 { MNT_LOCAL, "local" },
142 { MNT_QUOTA, "quota" },
143 { MNT_ROOTFS, "rootfs" },
144 { MNT_USER, "user" },
145 { MNT_IGNORE, "ignore" },
146 { MNT_UPDATE, "update" },
147 { MNT_DELEXPORT, "delexport" },
148 { MNT_RELOAD, "reload" },
149 { MNT_FORCE, "force" },
154 #define SVAR(var) __STRING(var) /* to force expansion */
155 #define KGET(idx, var) \
156 KGET1(idx, &var, sizeof(var), SVAR(var))
157 #define KGET1(idx, p, s, msg) \
158 KGET2(nl[idx].n_value, p, s, msg)
159 #define KGET2(addr, p, s, msg) \
160 if (kvm_read(kd, (u_long)(addr), p, s) != s) \
161 warnx("cannot read %s: %s", msg, kvm_geterr(kd))
162 #define KGETN(idx, var) \
163 KGET1N(idx, &var, sizeof(var), SVAR(var))
164 #define KGET1N(idx, p, s, msg) \
165 KGET2N(nl[idx].n_value, p, s, msg)
166 #define KGET2N(addr, p, s, msg) \
167 ((kvm_read(kd, (u_long)(addr), p, s) == s) ? 1 : 0)
168 #define KGETRET(addr, p, s, msg) \
169 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \
170 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \
175 int getfiles(char **, int *);
177 getmnt(struct mount *);
182 void mount_print(struct mount *);
183 void nfs_header(void);
184 int nfs_print(struct vnode *);
187 void ttyprt(struct tty *, int);
188 void ttytype(struct tty *, const char *, int, int, int);
189 void ufs_header(void);
190 int ufs_print(struct vnode *);
191 void union_header(void);
192 int union_print(struct vnode *);
193 static void usage(void);
194 void vnode_header(void);
195 void vnode_print(struct vnode *, struct vnode *);
196 void vnodemode(void);
199 main(int argc, char **argv)
202 int fileflag, ttyflag, vnodeflag;
203 char buf[_POSIX2_LINE_MAX];
206 fileflag = swapflag = ttyflag = vnodeflag = 0;
208 /* We will behave like good old swapinfo if thus invoked */
209 opts = strrchr(argv[0],'/');
214 if (!strcmp(opts,"swapinfo")) {
217 usagestr = "swapinfo [-k] [-M core] [-N system]";
219 opts = "TM:N:fiknstv";
220 usagestr = "pstat [-Tfknst] [-M core] [-N system]";
223 while ((ch = getopt(argc, argv, opts)) != -1)
229 if (putenv("BLOCKSIZE=1K") == -1)
230 warn("putenv: cannot set BLOCKSIZE=1K");
251 case 'i': /* Backward compatibility. */
252 errx(1, "vnode mode not supported");
264 * Discard setgid privileges if not the running kernel so that bad
265 * guys can't print interesting stuff from kernel memory.
267 if (nlistf != NULL || memf != NULL)
270 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0)
271 errx(1, "kvm_openfiles: %s", buf);
273 if (kcore_wrapper_open(nlistf, memf, buf))
274 errx(1, "kcore_open: %s", buf);
276 if ((ret = kvm_nlist(kd, nl)) != 0) {
281 errx(1, "kvm_nlist: %s", kvm_geterr(kd));
282 for (i = 0; i < NL_LAST_MANDATORY; i++) {
283 if (!nl[i].n_value) {
285 warnx("undefined symbol: %s", nl[i].n_name);
291 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag))
293 if (fileflag || totalflag)
299 if (swapflag || totalflag)
307 fprintf(stderr, "usage: %s\n", usagestr);
312 struct vnode *avnode;
319 struct e_vnode *e_vnodebase, *endvnode, *evp;
321 struct mount *maddr, *mp = NULL;
324 e_vnodebase = loadvnodes(&numvnodes);
326 printf("%7d vnodes\n", numvnodes);
329 endvnode = e_vnodebase + numvnodes;
330 printf("%d active vnodes\n", numvnodes);
333 #define ST mp->mnt_stat
335 for (evp = e_vnodebase; evp < endvnode; evp++) {
337 if (vp->v_mount != maddr) {
341 if ((mp = getmnt(vp->v_mount)) == NULL)
346 if (!strcmp(ST.f_fstypename, "ufs") ||
347 !strcmp(ST.f_fstypename, "mfs"))
349 else if (!strcmp(ST.f_fstypename, "nfs"))
351 else if (!strcmp(ST.f_fstypename, "union"))
355 vnode_print(evp->avnode, vp);
356 if (!strcmp(ST.f_fstypename, "ufs") ||
357 !strcmp(ST.f_fstypename, "mfs"))
359 else if (!strcmp(ST.f_fstypename, "nfs"))
361 else if (!strcmp(ST.f_fstypename, "union"))
371 printf("ADDR TYP VFLAG USE HOLD");
375 vnode_print(struct vnode *avnode, struct vnode *vp)
386 switch (vp->v_type) {
440 if (flag & VONWORKLST)
445 if (flag & VINACTIVE)
447 if (flag & VRECLAIMED)
456 * Convert SYSREF ref counts into something more
457 * human readable for display.
459 if ((refs = vp->v_sysref.refcnt) < 0)
460 refs = -(refs + 0x40000001);
461 printf("%8lx %s %5s %4d %4d",
462 (u_long)(void *)avnode, type, flags, refs, vp->v_auxrefs);
468 printf(" FILEID IFLAG RDEV|SZ");
472 ufs_print(struct vnode *vp)
475 struct inode inode, *ip = &inode;
476 char flagbuf[16], *flags = flagbuf;
480 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
482 if (flag & IN_ACCESS)
484 if (flag & IN_CHANGE)
486 if (flag & IN_UPDATE)
488 if (flag & IN_MODIFIED)
490 if (flag & IN_RENAME)
492 if (flag & IN_SHLOCK)
494 if (flag & IN_EXLOCK)
496 if (flag & IN_HASHED)
498 if (flag & IN_LAZYMOD)
504 printf(" %6ju %5s", (uintmax_t)ip->i_number, flagbuf);
505 type = ip->i_mode & S_IFMT;
506 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode))
507 if (usenumflag || ((name = devname(ip->i_rdev, type)) == NULL))
509 major(ip->i_rdev), minor(ip->i_rdev));
511 printf(" %7s", name);
513 printf(" %7qd", ip->i_size);
520 printf(" FILEID NFLAG RDEV|SZ");
524 nfs_print(struct vnode *vp)
526 struct nfsnode nfsnode, *np = &nfsnode;
527 char flagbuf[16], *flags = flagbuf;
532 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode");
534 if (flag & NFLUSHWANT)
536 if (flag & NFLUSHINPROG)
538 if (flag & NLMODIFIED)
540 if (flag & NRMODIFIED)
542 if (flag & NWRITEERR)
544 if (flag & NQNFSEVICTED)
560 #define VT np->n_vattr
561 printf(" %6ju %5s", (uintmax_t)VT.va_fileid, flagbuf);
562 type = VT.va_mode & S_IFMT;
563 if (S_ISCHR(VT.va_mode) || S_ISBLK(VT.va_mode))
564 if (usenumflag || ((name = devname((VT.va_rmajor << 8) | VT.va_rminor, type)) == NULL))
566 VT.va_rmajor, VT.va_rminor);
568 printf(" %7s", name);
570 printf(" %7qd", np->n_size);
577 printf(" UPPER LOWER");
581 union_print(struct vnode *vp)
583 struct union_node unode, *up = &unode;
585 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode");
587 printf(" %8lx %8lx", (u_long)(void *)up->un_uppervp,
588 (u_long)(void *)up->un_lowervp);
593 * Given a pointer to a mount structure in kernel space,
594 * read it in and return a usable pointer to it.
597 getmnt(struct mount *maddr)
606 for (mt = mhead; mt != NULL; mt = mt->next)
607 if (maddr == mt->maddr)
609 if ((mt = malloc(sizeof(struct mtab))) == NULL)
611 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table");
619 mount_print(struct mount *mp)
623 #define ST mp->mnt_stat
624 printf("*** MOUNT %s %s on %s", ST.f_fstypename,
625 ST.f_mntfromname, ST.f_mntonname);
626 if ((flags = mp->mnt_flag)) {
628 const char *sep = " (";
630 for (i = 0; mnt_flags[i].m_flag; i++) {
631 if (flags & mnt_flags[i].m_flag) {
632 printf("%s%s", sep, mnt_flags[i].m_name);
633 flags &= ~mnt_flags[i].m_flag;
638 printf("%sunknown_flags:%x", sep, flags);
646 loadvnodes(int *avnodes)
650 struct e_vnode *vnodebase;
656 return (kinfo_vnodes(avnodes));
660 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1)
661 err(1, "sysctl: KERN_VNODE");
662 if ((vnodebase = malloc(copysize)) == NULL)
664 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1)
665 err(1, "sysctl: KERN_VNODE");
666 if (copysize % sizeof(struct e_vnode))
667 errx(1, "vnode size mismatch");
668 *avnodes = copysize / sizeof(struct e_vnode);
674 * simulate what a running kernel does in in kinfo_vnode
677 kinfo_vnodes(int *avnodes)
679 struct mntlist mountlist;
680 struct mount *mp, mounth, *mp_next;
681 struct vnode *vp, vnode, *vp_next;
682 char *vbuf, *evbuf, *bp;
685 #define VPTRSZ sizeof(struct vnode *)
686 #define VNODESZ sizeof(struct vnode)
688 KGET(NL_NUMVNODES, numvnodes);
689 if ((vbuf = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL)
692 evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ);
693 KGET(NL_MOUNTLIST, mountlist);
694 for (num = 0, mp = TAILQ_FIRST(&mountlist); ; mp = mp_next) {
695 KGET2(mp, &mounth, sizeof(mounth), "mount entry");
696 mp_next = TAILQ_NEXT(&mounth, mnt_list);
697 for (vp = TAILQ_FIRST(&mounth.mnt_nvnodelist);
698 vp != NULL; vp = vp_next) {
699 KGET2(vp, &vnode, sizeof(vnode), "vnode");
700 vp_next = TAILQ_NEXT(&vnode, v_nmntvnodes);
701 if ((bp + VPTRSZ + VNODESZ) > evbuf)
702 /* XXX - should realloc */
703 errx(1, "no more room for vnodes");
704 memmove(bp, &vp, VPTRSZ);
706 memmove(bp, &vnode, VNODESZ);
710 if (mp == TAILQ_LAST(&mountlist, mntlist))
714 return ((struct e_vnode *)vbuf);
718 " LINE RAW CAN OUT IHIWT ILOWT OHWT LWT COL STATE SESS PGID DISC\n";
725 struct tty ttyb[1000];
731 error = sysctlbyname("kern.ttys", &ttyb, &len, 0, 0);
733 len /= sizeof(ttyb[0]);
734 for (i = 0; i < len; i++) {
738 if ((tty = malloc(ttyspace * sizeof(*tty))) == NULL)
740 if (nl[NL_NRC_TTY].n_type != 0)
741 ttytype(tty, "rc", NL_RC_TTY, NL_NRC_TTY, 0);
742 if (nl[NL_NCY_TTY].n_type != 0)
743 ttytype(tty, "cy", NL_CY_TTY, NL_NCY_TTY, 0);
744 if (nl[NL_SI_NPORTS].n_type != 0)
745 ttytype(tty, "si", NL_SI_TTY, NL_SI_NPORTS, 1);
750 ttytype(struct tty *tty, const char *name, int type, int number, int indir)
754 struct tty **ttyaddr;
759 printf("%d %s %s\n", ntty, name, (ntty == 1) ? "line" : "lines");
760 if (ntty > ttyspace) {
762 if ((tty = realloc(tty, ttyspace * sizeof(*tty))) == 0)
767 KGET2(ttyaddr, tty, (ssize_t)(ntty * sizeof(struct tty)),
770 KGET1(type, tty, (ssize_t)(ntty * sizeof(struct tty)),
774 for (tp = tty; tp < &tty[ntty]; tp++)
775 ttyprt(tp, tp - tty);
788 { TS_CONNECTED, 'c'},
797 { TS_SO_OLOWAT, 'A'},
799 #ifdef TS_SO_OCOMPLETE
800 { TS_SO_OCOMPLETE, 'a'},
805 { TS_CAR_OFLOW, 'm'},
808 { TS_CTS_OFLOW, 'o'},
811 { TS_DSR_OFLOW, 'd'},
820 #ifdef TS_CAN_BYPASS_L_RINT
821 { TS_CAN_BYPASS_L_RINT, 'l'},
833 ttyprt(struct tty *tp, int line)
837 char *name, state[20];
839 if (usenumflag || tp->t_dev == 0 ||
840 (name = devname(tp->t_dev, S_IFCHR)) == NULL)
841 printf("%7d ", line);
843 printf("%7s ", name);
844 printf("%2d %3d ", tp->t_rawq.c_cc, tp->t_canq.c_cc);
845 printf("%3d %5d %5d %4d %3d %7d ", tp->t_outq.c_cc,
846 tp->t_ihiwat, tp->t_ilowat, tp->t_ohiwat, tp->t_olowat,
848 for (i = j = 0; ttystates[i].flag; i++)
849 if (tp->t_state&ttystates[i].flag)
850 state[j++] = ttystates[i].val;
854 printf("%-6s %8lx", state, (u_long)(void *)tp->t_session);
856 if (tp->t_pgrp != NULL)
857 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid");
858 printf("%6d ", pgid);
859 switch (tp->t_line) {
873 printf("%d\n", tp->t_line);
881 struct kinfo_file *fp, *ofp;
883 char flagbuf[16], *fbp;
885 static const char *dtypes[] = { "???", "inode", "socket" };
887 if (kinfo_get_maxfiles(&maxfile))
888 err(1, "kinfo_get_maxfiles");
890 if (kinfo_get_openfiles(&nfile))
891 err(1, "kinfo_get_openfiles");
892 printf("%3d/%3d files\n", nfile, maxfile);
895 if (kinfo_get_files(&fp, &len))
896 err(1, "kinfo_get_files");
899 printf("%d/%d open files\n", len, maxfile);
900 printf(" LOC TYPE FLG CNT MSG DATA OFFSET\n");
901 for (; len-- > 0; fp++) {
902 if ((unsigned)fp->f_type > DTYPE_SOCKET)
904 printf("%p ", fp->f_file);
905 printf("%-8.8s", dtypes[fp->f_type]);
907 if (fp->f_flag & FREAD)
909 if (fp->f_flag & FWRITE)
911 if (fp->f_flag & FAPPEND)
913 #ifdef FSHLOCK /* currently gone */
914 if (fp->f_flag & FSHLOCK)
916 if (fp->f_flag & FEXLOCK)
919 if (fp->f_flag & FASYNC)
922 printf("%6s %3d", flagbuf, fp->f_count);
923 printf(" %3d", fp->f_msgcount);
924 printf(" %8lx", (u_long)(void *)fp->f_data);
925 if (fp->f_offset < 0)
926 printf(" %qx\n", fp->f_offset);
928 printf(" %qd\n", fp->f_offset);
934 * swapmode is based on a program called swapinfo written
935 * by Kevin Lahey <kml@rokkaku.atl.ga.us>.
940 struct kvm_swap kswap[16];
943 int pagesize = getpagesize();
951 sizeof(kswap)/sizeof(kswap[0]),
952 ((swapflag > 1) ? SWIF_DUMP_TREE : 0) | SWIF_DEV_PREFIX
955 #define CONVERT(v) ((int)((quad_t)(v) * pagesize / blocksize))
957 header = getbsize(&hlen, &blocksize);
958 if (totalflag == 0) {
959 printf("%-15s %*s %8s %8s %8s %s\n",
960 "Device", hlen, header,
961 "Used", "Avail", "Capacity", "Type");
963 for (i = 0; i < n; ++i) {
966 kswap[i].ksw_devname,
968 CONVERT(kswap[i].ksw_total)
971 "%8d %8d %5.0f%% %s\n",
972 CONVERT(kswap[i].ksw_used),
973 CONVERT(kswap[i].ksw_total - kswap[i].ksw_used),
974 (double)kswap[i].ksw_used * 100.0 /
975 (double)kswap[i].ksw_total,
976 (kswap[i].ksw_flags & SW_SEQUENTIAL) ?
977 "Sequential" : "Interleaved"
983 blocksize = 1024 * 1024;
986 "%dM/%dM swap space\n",
987 CONVERT(kswap[n].ksw_used),
988 CONVERT(kswap[n].ksw_total)
992 "%-15s %*d %8d %8d %5.0f%%\n",
995 CONVERT(kswap[n].ksw_total),
996 CONVERT(kswap[n].ksw_used),
997 CONVERT(kswap[n].ksw_total - kswap[n].ksw_used),
998 (double)kswap[n].ksw_used * 100.0 /
999 (double)kswap[n].ksw_total