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 1.17 2006/02/08 08:34:13 dillon 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)
385 switch (vp->v_type) {
439 if (flag & VONWORKLST)
444 if (flag & VINACTIVE)
446 if (flag & VRECLAIMED)
453 printf("%8lx %s %5s %4d %4d",
454 (u_long)(void *)avnode, type, flags, vp->v_usecount, vp->v_holdcnt);
460 printf(" FILEID IFLAG RDEV|SZ");
464 ufs_print(struct vnode *vp)
467 struct inode inode, *ip = &inode;
468 char flagbuf[16], *flags = flagbuf;
472 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
474 if (flag & IN_ACCESS)
476 if (flag & IN_CHANGE)
478 if (flag & IN_UPDATE)
480 if (flag & IN_MODIFIED)
482 if (flag & IN_RENAME)
484 if (flag & IN_SHLOCK)
486 if (flag & IN_EXLOCK)
488 if (flag & IN_HASHED)
490 if (flag & IN_LAZYMOD)
496 printf(" %6d %5s", ip->i_number, flagbuf);
497 type = ip->i_mode & S_IFMT;
498 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode))
499 if (usenumflag || ((name = devname(ip->i_rdev, type)) == NULL))
501 major(ip->i_rdev), minor(ip->i_rdev));
503 printf(" %7s", name);
505 printf(" %7qd", ip->i_size);
512 printf(" FILEID NFLAG RDEV|SZ");
516 nfs_print(struct vnode *vp)
518 struct nfsnode nfsnode, *np = &nfsnode;
519 char flagbuf[16], *flags = flagbuf;
524 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode");
526 if (flag & NFLUSHWANT)
528 if (flag & NFLUSHINPROG)
530 if (flag & NLMODIFIED)
532 if (flag & NRMODIFIED)
534 if (flag & NWRITEERR)
536 if (flag & NQNFSNONCACHE)
538 if (flag & NQNFSWRITE)
540 if (flag & NQNFSEVICTED)
556 #define VT np->n_vattr
557 printf(" %6ld %5s", VT.va_fileid, flagbuf);
558 type = VT.va_mode & S_IFMT;
559 if (S_ISCHR(VT.va_mode) || S_ISBLK(VT.va_mode))
560 if (usenumflag || ((name = devname(VT.va_rdev, type)) == NULL))
562 major(VT.va_rdev), minor(VT.va_rdev));
564 printf(" %7s", name);
566 printf(" %7qd", np->n_size);
573 printf(" UPPER LOWER");
577 union_print(struct vnode *vp)
579 struct union_node unode, *up = &unode;
581 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode");
583 printf(" %8lx %8lx", (u_long)(void *)up->un_uppervp,
584 (u_long)(void *)up->un_lowervp);
589 * Given a pointer to a mount structure in kernel space,
590 * read it in and return a usable pointer to it.
593 getmnt(struct mount *maddr)
602 for (mt = mhead; mt != NULL; mt = mt->next)
603 if (maddr == mt->maddr)
605 if ((mt = malloc(sizeof(struct mtab))) == NULL)
607 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table");
615 mount_print(struct mount *mp)
619 #define ST mp->mnt_stat
620 printf("*** MOUNT %s %s on %s", ST.f_fstypename,
621 ST.f_mntfromname, ST.f_mntonname);
622 if ((flags = mp->mnt_flag)) {
624 const char *sep = " (";
626 for (i = 0; mnt_flags[i].m_flag; i++) {
627 if (flags & mnt_flags[i].m_flag) {
628 printf("%s%s", sep, mnt_flags[i].m_name);
629 flags &= ~mnt_flags[i].m_flag;
634 printf("%sunknown_flags:%x", sep, flags);
642 loadvnodes(int *avnodes)
646 struct e_vnode *vnodebase;
652 return (kinfo_vnodes(avnodes));
656 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1)
657 err(1, "sysctl: KERN_VNODE");
658 if ((vnodebase = malloc(copysize)) == NULL)
660 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1)
661 err(1, "sysctl: KERN_VNODE");
662 if (copysize % sizeof(struct e_vnode))
663 errx(1, "vnode size mismatch");
664 *avnodes = copysize / sizeof(struct e_vnode);
670 * simulate what a running kernel does in in kinfo_vnode
673 kinfo_vnodes(int *avnodes)
675 struct mntlist mountlist;
676 struct mount *mp, mounth, *mp_next;
677 struct vnode *vp, vnode, *vp_next;
678 char *vbuf, *evbuf, *bp;
681 #define VPTRSZ sizeof(struct vnode *)
682 #define VNODESZ sizeof(struct vnode)
684 KGET(NL_NUMVNODES, numvnodes);
685 if ((vbuf = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL)
688 evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ);
689 KGET(NL_MOUNTLIST, mountlist);
690 for (num = 0, mp = TAILQ_FIRST(&mountlist); ; mp = mp_next) {
691 KGET2(mp, &mounth, sizeof(mounth), "mount entry");
692 mp_next = TAILQ_NEXT(&mounth, mnt_list);
693 for (vp = TAILQ_FIRST(&mounth.mnt_nvnodelist);
694 vp != NULL; vp = vp_next) {
695 KGET2(vp, &vnode, sizeof(vnode), "vnode");
696 vp_next = TAILQ_NEXT(&vnode, v_nmntvnodes);
697 if ((bp + VPTRSZ + VNODESZ) > evbuf)
698 /* XXX - should realloc */
699 errx(1, "no more room for vnodes");
700 memmove(bp, &vp, VPTRSZ);
702 memmove(bp, &vnode, VNODESZ);
706 if (mp == TAILQ_LAST(&mountlist, mntlist))
710 return ((struct e_vnode *)vbuf);
714 " LINE RAW CAN OUT IHIWT ILOWT OHWT LWT COL STATE SESS PGID DISC\n";
721 struct tty ttyb[1000];
727 error = sysctlbyname("kern.ttys", &ttyb, &len, 0, 0);
729 len /= sizeof(ttyb[0]);
730 for (i = 0; i < len; i++) {
734 if ((tty = malloc(ttyspace * sizeof(*tty))) == NULL)
736 if (nl[NL_NRC_TTY].n_type != 0)
737 ttytype(tty, "rc", NL_RC_TTY, NL_NRC_TTY, 0);
738 if (nl[NL_NCY_TTY].n_type != 0)
739 ttytype(tty, "cy", NL_CY_TTY, NL_NCY_TTY, 0);
740 if (nl[NL_SI_NPORTS].n_type != 0)
741 ttytype(tty, "si", NL_SI_TTY, NL_SI_NPORTS, 1);
746 ttytype(struct tty *tty, const char *name, int type, int number, int indir)
750 struct tty **ttyaddr;
755 printf("%d %s %s\n", ntty, name, (ntty == 1) ? "line" : "lines");
756 if (ntty > ttyspace) {
758 if ((tty = realloc(tty, ttyspace * sizeof(*tty))) == 0)
763 KGET2(ttyaddr, tty, (ssize_t)(ntty * sizeof(struct tty)),
766 KGET1(type, tty, (ssize_t)(ntty * sizeof(struct tty)),
770 for (tp = tty; tp < &tty[ntty]; tp++)
771 ttyprt(tp, tp - tty);
784 { TS_CONNECTED, 'c'},
793 { TS_SO_OLOWAT, 'A'},
795 #ifdef TS_SO_OCOMPLETE
796 { TS_SO_OCOMPLETE, 'a'},
801 { TS_CAR_OFLOW, 'm'},
804 { TS_CTS_OFLOW, 'o'},
807 { TS_DSR_OFLOW, 'd'},
816 #ifdef TS_CAN_BYPASS_L_RINT
817 { TS_CAN_BYPASS_L_RINT, 'l'},
829 ttyprt(struct tty *tp, int line)
833 char *name, state[20];
835 if (usenumflag || tp->t_dev == 0 ||
836 (name = devname(tp->t_dev, S_IFCHR)) == NULL)
837 printf("%7d ", line);
839 printf("%7s ", name);
840 printf("%2d %3d ", tp->t_rawq.c_cc, tp->t_canq.c_cc);
841 printf("%3d %5d %5d %4d %3d %7d ", tp->t_outq.c_cc,
842 tp->t_ihiwat, tp->t_ilowat, tp->t_ohiwat, tp->t_olowat,
844 for (i = j = 0; ttystates[i].flag; i++)
845 if (tp->t_state&ttystates[i].flag)
846 state[j++] = ttystates[i].val;
850 printf("%-6s %8lx", state, (u_long)(void *)tp->t_session);
852 if (tp->t_pgrp != NULL)
853 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid");
854 printf("%6d ", pgid);
855 switch (tp->t_line) {
869 printf("%d\n", tp->t_line);
877 struct kinfo_file *fp, *ofp;
879 char flagbuf[16], *fbp;
881 static const char *dtypes[] = { "???", "inode", "socket" };
883 if (kinfo_get_maxfiles(&maxfile))
884 err(1, "kinfo_get_maxfiles");
886 if (kinfo_get_openfiles(&nfile))
887 err(1, "kinfo_get_openfiles");
888 printf("%3d/%3d files\n", nfile, maxfile);
891 if (kinfo_get_files(&fp, &len))
892 err(1, "kinfo_get_files");
895 printf("%d/%d open files\n", len, maxfile);
896 printf(" LOC TYPE FLG CNT MSG DATA OFFSET\n");
897 for (; len-- > 0; fp++) {
898 if ((unsigned)fp->f_type > DTYPE_SOCKET)
900 printf("%p ", fp->f_file);
901 printf("%-8.8s", dtypes[fp->f_type]);
903 if (fp->f_flag & FREAD)
905 if (fp->f_flag & FWRITE)
907 if (fp->f_flag & FAPPEND)
909 #ifdef FSHLOCK /* currently gone */
910 if (fp->f_flag & FSHLOCK)
912 if (fp->f_flag & FEXLOCK)
915 if (fp->f_flag & FASYNC)
918 printf("%6s %3d", flagbuf, fp->f_count);
919 printf(" %3d", fp->f_msgcount);
920 printf(" %8lx", (u_long)(void *)fp->f_data);
921 if (fp->f_offset < 0)
922 printf(" %qx\n", fp->f_offset);
924 printf(" %qd\n", fp->f_offset);
930 * swapmode is based on a program called swapinfo written
931 * by Kevin Lahey <kml@rokkaku.atl.ga.us>.
936 struct kvm_swap kswap[16];
939 int pagesize = getpagesize();
947 sizeof(kswap)/sizeof(kswap[0]),
948 ((swapflag > 1) ? SWIF_DUMP_TREE : 0) | SWIF_DEV_PREFIX
951 #define CONVERT(v) ((int)((quad_t)(v) * pagesize / blocksize))
953 header = getbsize(&hlen, &blocksize);
954 if (totalflag == 0) {
955 printf("%-15s %*s %8s %8s %8s %s\n",
956 "Device", hlen, header,
957 "Used", "Avail", "Capacity", "Type");
959 for (i = 0; i < n; ++i) {
962 kswap[i].ksw_devname,
964 CONVERT(kswap[i].ksw_total)
967 "%8d %8d %5.0f%% %s\n",
968 CONVERT(kswap[i].ksw_used),
969 CONVERT(kswap[i].ksw_total - kswap[i].ksw_used),
970 (double)kswap[i].ksw_used * 100.0 /
971 (double)kswap[i].ksw_total,
972 (kswap[i].ksw_flags & SW_SEQUENTIAL) ?
973 "Sequential" : "Interleaved"
979 blocksize = 1024 * 1024;
982 "%dM/%dM swap space\n",
983 CONVERT(kswap[n].ksw_used),
984 CONVERT(kswap[n].ksw_total)
988 "%-15s %*d %8d %8d %5.0f%%\n",
991 CONVERT(kswap[n].ksw_total),
992 CONVERT(kswap[n].ksw_used),
993 CONVERT(kswap[n].ksw_total - kswap[n].ksw_used),
994 (double)kswap[n].ksw_used * 100.0 /
995 (double)kswap[n].ksw_total