2 * Copyright (c) 1988, 1993
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
35 static const char copyright[] =
36 "@(#) Copyright (c) 1988, 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
42 static char sccsid[] = "@(#)fstat.c 8.3 (Berkeley) 5/2/95";
45 #include <sys/cdefs.h>
46 __FBSDID("$FreeBSD$");
48 #include <sys/param.h>
53 #include <sys/vnode.h>
54 #include <sys/socket.h>
55 #include <sys/socketvar.h>
56 #include <sys/domain.h>
57 #include <sys/protosw.h>
59 #include <sys/unpcb.h>
60 #include <sys/sysctl.h>
62 #include <sys/filedesc.h>
63 #include <sys/queue.h>
69 #include <sys/mount.h>
70 #include <ufs/ufs/quota.h>
71 #include <ufs/ufs/inode.h>
72 #include <fs/devfs/devfs.h>
73 #include <fs/devfs/devfs_int.h>
75 #include <nfs/nfsproto.h>
76 #include <nfsclient/nfs.h>
77 #include <nfsclient/nfsnode.h>
81 #include <vm/vm_map.h>
82 #include <vm/vm_object.h>
84 #include <net/route.h>
85 #include <netinet/in.h>
86 #include <netinet/in_systm.h>
87 #include <netinet/ip.h>
88 #include <netinet/in_pcb.h>
117 struct nlist nl[] = {
122 int fsflg, /* show files on same filesystem as file(s) argument */
123 pflg, /* show files open by a particular pid */
124 uflg; /* show files open by a particular (effective) user */
125 int checkfile; /* true if restricting to particular files or filesystems */
126 int nflg; /* (numerical) display f.s. and rdev as dev_t */
127 int vflg; /* display errors in locating kernel data objects etc... */
128 int mflg; /* include memory-mapped files */
131 struct file **ofiles; /* buffer of pointers to file structures */
133 #define ALLOC_OFILES(d) \
134 if ((d) > maxfiles) { \
136 ofiles = malloc((d) * sizeof(struct file *)); \
137 if (ofiles == NULL) { \
146 static void fstat_kvm(int, int);
147 static void fstat_sysctl(int, int);
148 void dofiles(struct kinfo_proc *kp);
149 void dommap(struct kinfo_proc *kp);
150 void vtrans(struct vnode *vp, int i, int flag);
151 int ufs_filestat(struct vnode *vp, struct filestat *fsp);
152 int nfs_filestat(struct vnode *vp, struct filestat *fsp);
153 int devfs_filestat(struct vnode *vp, struct filestat *fsp);
154 char *getmnton(struct mount *m);
155 void pipetrans(struct pipe *pi, int i, int flag);
156 void socktrans(struct socket *sock, int i);
157 void ptstrans(struct tty *tp, int i, int flag);
158 void getinetproto(int number);
159 int getfname(const char *filename);
161 char *kdevtoname(struct cdev *dev);
164 main(int argc, char **argv)
166 struct passwd *passwd;
170 what = KERN_PROC_PROC;
171 nlistf = memf = NULL;
172 while ((ch = getopt(argc, argv, "fmnp:u:vN:M:")) != -1)
192 if (!isdigit(*optarg)) {
193 warnx("-p requires a process id");
196 what = KERN_PROC_PID;
202 if (!(passwd = getpwnam(optarg)))
203 errx(1, "%s: unknown uid", optarg);
204 what = KERN_PROC_UID;
205 arg = passwd->pw_uid;
215 if (*(argv += optind)) {
216 for (; *argv; ++argv) {
220 if (!checkfile) /* file(s) specified, but none accessable */
224 if (fsflg && !checkfile) {
225 /* -f with no files means use wd */
226 if (getfname(".") == 0)
232 fstat_kvm(what, arg);
234 fstat_sysctl(what, arg);
244 "USER CMD PID FD DEV INUM MODE SZ|DV R/W");
247 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W");
248 if (checkfile && fsflg == 0)
255 fstat_kvm(int what, int arg)
257 struct kinfo_proc *p, *plast;
258 char buf[_POSIX2_LINE_MAX];
261 ALLOC_OFILES(256); /* reserve space for file pointers */
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)) == NULL)
274 if (kvm_nlist(kd, nl) != 0)
275 errx(1, "no namelist: %s", kvm_geterr(kd));
277 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL)
278 errx(1, "%s", kvm_geterr(kd));
280 for (plast = &p[cnt]; p < plast; ++p) {
281 if (p->ki_stat == SZOMB)
290 fstat_sysctl(int what, int arg)
293 /* not yet implemented */
294 fstat_kvm(what, arg);
297 const char *Uname, *Comm;
300 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \
326 * print open files attributed to this process
329 dofiles(struct kinfo_proc *kp)
333 struct filedesc filed;
335 Uname = user_from_uid(kp->ki_uid, 0);
339 if (kp->ki_fd == NULL)
341 if (!KVM_READ(kp->ki_fd, &filed, sizeof (filed))) {
342 dprintf(stderr, "can't read filedesc at %p for pid %d\n",
343 (void *)kp->ki_fd, Pid);
347 * root directory vnode, if one
350 vtrans(filed.fd_rdir, RDIR, FREAD);
352 * current working directory vnode
355 vtrans(filed.fd_cdir, CDIR, FREAD);
360 vtrans(filed.fd_jdir, JDIR, FREAD);
362 * ktrace vnode, if one
365 vtrans(kp->ki_tracep, TRACE, FREAD|FWRITE);
370 vtrans(kp->ki_textvp, TEXT, FREAD);
374 #define FPSIZE (sizeof (struct file *))
375 #define MAX_LASTFILE (0x1000000)
377 /* Sanity check on filed.fd_lastfile */
378 if (filed.fd_lastfile <= -1 || filed.fd_lastfile > MAX_LASTFILE)
381 ALLOC_OFILES(filed.fd_lastfile+1);
382 if (!KVM_READ(filed.fd_ofiles, ofiles,
383 (filed.fd_lastfile+1) * FPSIZE)) {
385 "can't read file structures at %p for pid %d\n",
386 (void *)filed.fd_ofiles, Pid);
389 for (i = 0; i <= filed.fd_lastfile; i++) {
390 if (ofiles[i] == NULL)
392 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) {
393 dprintf(stderr, "can't read file %d at %p for pid %d\n",
394 i, (void *)ofiles[i], Pid);
397 if (file.f_type == DTYPE_VNODE)
398 vtrans(file.f_vnode, i, file.f_flag);
399 else if (file.f_type == DTYPE_SOCKET) {
401 socktrans(file.f_data, i);
404 else if (file.f_type == DTYPE_PIPE) {
406 pipetrans(file.f_data, i, file.f_flag);
410 else if (file.f_type == DTYPE_FIFO) {
412 vtrans(file.f_vnode, i, file.f_flag);
416 else if (file.f_type == DTYPE_PTS) {
418 ptstrans(file.f_data, i, file.f_flag);
423 "unknown file type %d for file %d of pid %d\n",
424 file.f_type, i, Pid);
430 dommap(struct kinfo_proc *kp)
433 struct vmspace vmspace;
434 struct vm_map_entry entry;
435 vm_map_entry_t entryp;
436 struct vm_object object;
440 if (!KVM_READ(kp->ki_vmspace, &vmspace, sizeof(vmspace))) {
442 "can't read vmspace at %p for pid %d\n",
443 (void *)kp->ki_vmspace, Pid);
446 map = &vmspace.vm_map;
448 for (entryp = map->header.next;
449 entryp != &kp->ki_vmspace->vm_map.header; entryp = entry.next) {
450 if (!KVM_READ(entryp, &entry, sizeof(entry))) {
452 "can't read vm_map_entry at %p for pid %d\n",
453 (void *)entryp, Pid);
457 if (entry.eflags & MAP_ENTRY_IS_SUB_MAP)
460 if ((objp = entry.object.vm_object) == NULL)
463 for (; objp; objp = object.backing_object) {
464 if (!KVM_READ(objp, &object, sizeof(object))) {
466 "can't read vm_object at %p for pid %d\n",
472 prot = entry.protection;
473 fflags = (prot & VM_PROT_READ ? FREAD : 0) |
474 (prot & VM_PROT_WRITE ? FWRITE : 0);
476 switch (object.type) {
478 vtrans((struct vnode *)object.handle, MMAP, fflags);
487 kdevtoname(struct cdev *dev)
491 if (!KVM_READ(dev, &si, sizeof si))
493 return (strdup(si.__si_namebuf));
497 vtrans(struct vnode *vp, int i, int flag)
501 char rw[3], mode[15], tagstr[12], *tagptr;
502 const char *badtype, *filename;
504 filename = badtype = NULL;
505 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) {
506 dprintf(stderr, "can't read vnode at %p for pid %d\n",
510 if (!KVM_READ(&vp->v_tag, &tagptr, sizeof tagptr) ||
511 !KVM_READ(tagptr, tagstr, sizeof tagstr)) {
512 dprintf(stderr, "can't read v_tag at %p for pid %d\n",
516 tagstr[sizeof(tagstr) - 1] = '\0';
517 if (vn.v_type == VNON)
519 else if (vn.v_type == VBAD)
522 if (!strcmp("ufs", tagstr)) {
523 if (!ufs_filestat(&vn, &fst))
525 } else if (!strcmp("devfs", tagstr)) {
526 if (!devfs_filestat(&vn, &fst))
528 } else if (!strcmp("nfs", tagstr)) {
529 if (!nfs_filestat(&vn, &fst))
531 } else if (!strcmp("msdosfs", tagstr)) {
532 if (!msdosfs_filestat(&vn, &fst))
534 } else if (!strcmp("isofs", tagstr)) {
535 if (!isofs_filestat(&vn, &fst))
538 } else if (!strcmp("zfs", tagstr)) {
539 if (!zfs_filestat(&vn, &fst))
543 static char unknown[32];
544 snprintf(unknown, sizeof unknown, "?(%s)", tagstr);
554 for (d = devs; d != NULL; d = d->next)
555 if (d->fsid == fst.fsid) {
557 if (d->ino == fst.fileid) {
562 if (fsmatch == 0 || (filename == NULL && fsflg == 0))
567 (void)printf(" - - %10s -\n", badtype);
571 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid));
573 (void)printf(" %-8s", getmnton(vn.v_mount));
575 (void)sprintf(mode, "%o", fst.mode);
577 strmode(fst.mode, mode);
578 (void)printf(" %6ld %10s", fst.fileid, mode);
584 name = kdevtoname(vn.v_rdev);
586 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev));
588 printf(" %6s", name);
594 printf(" %6lu", fst.size);
602 if (filename && !fsflg)
603 printf(" %s", filename);
608 ufs_filestat(struct vnode *vp, struct filestat *fsp)
612 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) {
613 dprintf(stderr, "can't read inode at %p for pid %d\n",
614 (void *)VTOI(vp), Pid);
618 * The st_dev from stat(2) is a dev_t. These kernel structures
619 * contain cdev pointers. We need to convert to dev_t to make
622 fsp->fsid = dev2udev(inode.i_dev);
623 fsp->fileid = (long)inode.i_number;
624 fsp->mode = (mode_t)inode.i_mode;
625 fsp->size = (u_long)inode.i_size;
626 #if should_be_but_is_hard
627 /* XXX - need to load i_ump and i_din[12] from kernel memory */
628 if (inode.i_ump->um_fstype == UFS1)
629 fsp->rdev = inode.i_din1->di_rdev;
631 fsp->rdev = inode.i_din2->di_rdev;
640 devfs_filestat(struct vnode *vp, struct filestat *fsp)
642 struct devfs_dirent devfs_dirent;
646 if (!KVM_READ(vp->v_data, &devfs_dirent, sizeof (devfs_dirent))) {
647 dprintf(stderr, "can't read devfs_dirent at %p for pid %d\n",
648 (void *)vp->v_data, Pid);
651 if (!KVM_READ(vp->v_mount, &mount, sizeof (mount))) {
652 dprintf(stderr, "can't read mount at %p for pid %d\n",
653 (void *)vp->v_mount, Pid);
656 if (!KVM_READ(devfs_dirent.de_vnode, &vnode, sizeof (vnode))) {
657 dprintf(stderr, "can't read vnode at %p for pid %d\n",
658 (void *)devfs_dirent.de_vnode, Pid);
661 fsp->fsid = (long)(uint32_t)mount.mnt_stat.f_fsid.val[0];
662 fsp->fileid = devfs_dirent.de_inode;
663 fsp->mode = (devfs_dirent.de_mode & ~S_IFMT) | S_IFCHR;
665 fsp->rdev = dev2udev(vnode.v_rdev);
671 nfs_filestat(struct vnode *vp, struct filestat *fsp)
673 struct nfsnode nfsnode;
676 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) {
677 dprintf(stderr, "can't read nfsnode at %p for pid %d\n",
678 (void *)VTONFS(vp), Pid);
681 fsp->fsid = nfsnode.n_vattr.va_fsid;
682 fsp->fileid = nfsnode.n_vattr.va_fileid;
683 fsp->size = nfsnode.n_size;
684 fsp->rdev = nfsnode.n_vattr.va_rdev;
685 mode = (mode_t)nfsnode.n_vattr.va_mode;
686 switch (vp->v_type) {
720 getmnton(struct mount *m)
722 static struct mount mount;
726 char mntonname[MNAMELEN];
730 for (mt = mhead; mt != NULL; mt = mt->next)
732 return (mt->mntonname);
733 if (!KVM_READ(m, &mount, sizeof(struct mount))) {
734 warnx("can't read mount table at %p", (void *)m);
737 if ((mt = malloc(sizeof (struct mtab))) == NULL)
740 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN);
743 return (mt->mntonname);
747 pipetrans(struct pipe *pi, int i, int flag)
755 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) {
756 dprintf(stderr, "can't read pipe at %p\n", (void *)pi);
760 printf("* pipe %8lx <-> %8lx", (u_long)pi, (u_long)pip.pipe_peer);
761 printf(" %6d", (int)pip.pipe_buffer.cnt);
776 socktrans(struct socket *sock, int i)
778 static const char *stypename[] = {
788 struct protosw proto;
798 if (!KVM_READ(sock, &so, sizeof(struct socket))) {
799 dprintf(stderr, "can't read sock at %p\n", (void *)sock);
803 /* fill in protosw entry */
804 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) {
805 dprintf(stderr, "can't read protosw at %p",
806 (void *)so.so_proto);
811 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) {
812 dprintf(stderr, "can't read domain at %p\n",
813 (void *)proto.pr_domain);
817 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname,
818 sizeof(dname) - 1)) < 0) {
819 dprintf(stderr, "can't read domain name at %p\n",
820 (void *)dom.dom_name);
826 if ((u_short)so.so_type > STYPEMAX)
827 printf("* %s ?%d", dname, so.so_type);
829 printf("* %s %s", dname, stypename[so.so_type]);
832 * protocol specific formatting
834 * Try to find interesting things to print. For tcp, the interesting
835 * thing is the address of the tcpcb, for udp and others, just the
836 * inpcb (socket pcb). For unix domain, its the address of the socket
837 * pcb and the address of the connected pcb (if connected). Otherwise
838 * just print the protocol number and address of the socket itself.
839 * The idea is not to duplicate netstat, but to make available enough
840 * information for further analysis.
842 switch(dom.dom_family) {
845 getinetproto(proto.pr_protocol);
846 if (proto.pr_protocol == IPPROTO_TCP ) {
848 if (kvm_read(kd, (u_long)so.so_pcb,
849 (char *)&inpcb, sizeof(struct inpcb))
850 != sizeof(struct inpcb)) {
852 "can't read inpcb at %p\n",
856 printf(" %lx", (u_long)inpcb.inp_ppcb);
860 printf(" %lx", (u_long)so.so_pcb);
863 /* print address of pcb and connected pcb */
865 printf(" %lx", (u_long)so.so_pcb);
866 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb,
867 sizeof(struct unpcb)) != sizeof(struct unpcb)){
868 dprintf(stderr, "can't read unpcb at %p\n",
872 if (unpcb.unp_conn) {
873 char shoconn[4], *cp;
876 if (!(so.so_rcv.sb_state & SBS_CANTRCVMORE))
879 if (!(so.so_snd.sb_state & SBS_CANTSENDMORE))
882 printf(" %s %lx", shoconn,
883 (u_long)unpcb.unp_conn);
888 /* print protocol number and socket address */
889 printf(" %d %lx", proto.pr_protocol, (u_long)sock);
898 ptstrans(struct tty *tp, int i, int flag)
907 /* Obtain struct tty. */
908 if (!KVM_READ(tp, &tty, sizeof(struct tty))) {
909 dprintf(stderr, "can't read tty at %p\n", (void *)tp);
913 /* Figure out the device name. */
914 name = kdevtoname(tty.t_dev);
916 dprintf(stderr, "can't determine tty name at %p\n", (void *)tp);
926 printf("* pseudo-terminal master ");
928 rdev = dev2udev(tty.t_dev);
929 printf("%10d,%-2d", major(rdev), minor(rdev));
931 printf("%10s", name);
933 printf(" %2s\n", rw);
943 * Read the cdev structure in the kernel in order to work out the
947 dev2udev(struct cdev *dev)
949 struct cdev_priv priv;
951 if (KVM_READ(cdev2priv(dev), &priv, sizeof priv)) {
952 return ((dev_t)priv.cdp_inode);
954 dprintf(stderr, "can't convert cdev *%p to a dev_t\n", dev);
961 * print name of protocol number
964 getinetproto(int number)
970 setprotoent(++isopen);
971 if ((pe = getprotobynumber(number)) != NULL)
972 printf(" %s", pe->p_name);
974 printf(" %d", number);
978 getfname(const char *filename)
983 if (stat(filename, &statbuf)) {
984 warn("%s", filename);
987 if ((cur = malloc(sizeof(DEVS))) == NULL)
992 cur->ino = statbuf.st_ino;
993 cur->fsid = statbuf.st_dev;
994 cur->name = filename;
1000 getvnodedata(struct vnode *vp)
1002 return (vp->v_data);
1006 getvnodemount(struct vnode *vp)
1008 return (vp->v_mount);
1015 (void)fprintf(stderr,
1016 "usage: fstat [-fmnv] [-M core] [-N system] [-p pid] [-u user] [file ...]\n");