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
33 * @(#) Copyright (c) 1988, 1993 The Regents of the University of California. All rights reserved.
34 * @(#)fstat.c 8.3 (Berkeley) 5/2/95
35 * $FreeBSD: src/usr.bin/fstat/fstat.c,v 1.21.2.7 2001/11/21 10:49:37 dwmalone Exp $
36 * $DragonFly: src/usr.bin/fstat/fstat.c,v 1.7 2003/11/21 22:46:14 dillon Exp $
39 #define _KERNEL_STRUCTURES
41 #include <sys/param.h>
45 #include <sys/vnode.h>
46 #include <sys/socket.h>
47 #include <sys/socketvar.h>
48 #include <sys/domain.h>
49 #include <sys/protosw.h>
51 #include <sys/unpcb.h>
52 #include <sys/sysctl.h>
53 #include <sys/filedesc.h>
54 #include <sys/queue.h>
58 #include <vfs/ufs/quota.h>
59 #include <vfs/ufs/inode.h>
60 #include <sys/mount.h>
61 #include <nfs/nfsproto.h>
62 #include <nfs/rpcv2.h>
64 #include <nfs/nfsnode.h>
68 #include <vm/vm_map.h>
69 #include <vm/vm_object.h>
71 #include <net/route.h>
72 #include <netinet/in.h>
73 #include <netinet/in_systm.h>
74 #include <netinet/ip.h>
75 #include <netinet/in_pcb.h>
102 struct nlist nl[] = {
107 int fsflg, /* show files on same filesystem as file(s) argument */
108 pflg, /* show files open by a particular pid */
109 uflg; /* show files open by a particular (effective) user */
110 int checkfile; /* true if restricting to particular files or filesystems */
111 int nflg; /* (numerical) display f.s. and rdev as dev_t */
112 int vflg; /* display errors in locating kernel data objects etc... */
113 int mflg; /* include memory-mapped files */
116 struct file **ofiles; /* buffer of pointers to file structures */
118 #define ALLOC_OFILES(d) \
119 if ((d) > maxfiles) { \
121 ofiles = malloc((d) * sizeof(struct file *)); \
122 if (ofiles == NULL) { \
130 void dofiles(struct kinfo_proc *kp);
131 void dommap(struct kinfo_proc *kp);
132 void vtrans(struct vnode *vp, int i, int flag);
133 int ufs_filestat(struct vnode *vp, struct filestat *fsp);
134 int nfs_filestat(struct vnode *vp, struct filestat *fsp);
135 char *getmnton(struct mount *m);
136 void pipetrans(struct pipe *pi, int i, int flag);
137 void socktrans(struct socket *sock, int i);
138 void getinetproto(int number);
139 int getfname(char *filename);
144 main(int argc, char **argv)
146 register struct passwd *passwd;
147 struct kinfo_proc *p, *plast;
150 char buf[_POSIX2_LINE_MAX];
154 what = KERN_PROC_ALL;
155 nlistf = memf = NULL;
156 while ((ch = getopt(argc, argv, "fmnp:u:vN:M:")) != -1)
176 if (!isdigit(*optarg)) {
177 warnx("-p requires a process id");
180 what = KERN_PROC_PID;
186 if (!(passwd = getpwnam(optarg)))
187 errx(1, "%s: unknown uid", optarg);
188 what = KERN_PROC_UID;
189 arg = passwd->pw_uid;
199 if (*(argv += optind)) {
200 for (; *argv; ++argv) {
204 if (!checkfile) /* file(s) specified, but none accessable */
208 ALLOC_OFILES(256); /* reserve space for file pointers */
210 if (fsflg && !checkfile) {
211 /* -f with no files means use wd */
212 if (getfname(".") == 0)
218 * Discard setgid privileges if not the running kernel so that bad
219 * guys can't print interesting stuff from kernel memory.
221 if (nlistf != NULL || memf != NULL)
224 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL)
227 if (kvm_nlist(kd, nl) != 0)
228 errx(1, "no namelist: %s", kvm_geterr(kd));
230 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL)
231 errx(1, "%s", kvm_geterr(kd));
234 "USER CMD PID FD DEV INUM MODE SZ|DV R/W");
237 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W");
238 if (checkfile && fsflg == 0)
243 for (plast = &p[cnt]; p < plast; ++p) {
244 if (p->kp_proc.p_stat == SZOMB)
256 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \
279 * print open files attributed to this process
282 dofiles(struct kinfo_proc *kp)
286 struct filedesc0 filed0;
287 #define filed filed0.fd_fd
288 struct proc *p = &kp->kp_proc;
289 struct eproc *ep = &kp->kp_eproc;
291 Uname = user_from_uid(ep->e_ucred.cr_uid, 0);
293 Comm = kp->kp_thread.td_comm;
297 if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) {
298 dprintf(stderr, "can't read filedesc at %p for pid %d\n",
299 (void *)p->p_fd, Pid);
303 * root directory vnode, if one
306 vtrans(filed.fd_rdir, RDIR, FREAD);
308 * current working directory vnode
310 vtrans(filed.fd_cdir, CDIR, FREAD);
312 * ktrace vnode, if one
315 vtrans(p->p_tracep, TRACE, FREAD|FWRITE);
320 vtrans(p->p_textvp, TEXT, FREAD);
324 #define FPSIZE (sizeof (struct file *))
325 ALLOC_OFILES(filed.fd_lastfile+1);
326 if (filed.fd_nfiles > NDFILE) {
327 if (!KVM_READ(filed.fd_ofiles, ofiles,
328 (filed.fd_lastfile+1) * FPSIZE)) {
330 "can't read file structures at %p for pid %d\n",
331 (void *)filed.fd_ofiles, Pid);
335 bcopy(filed0.fd_dfiles, ofiles, (filed.fd_lastfile+1) * FPSIZE);
336 for (i = 0; i <= filed.fd_lastfile; i++) {
337 if (ofiles[i] == NULL)
339 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) {
340 dprintf(stderr, "can't read file %d at %p for pid %d\n",
341 i, (void *)ofiles[i], Pid);
344 if (file.f_type == DTYPE_VNODE)
345 vtrans((struct vnode *)file.f_data, i, file.f_flag);
346 else if (file.f_type == DTYPE_SOCKET) {
348 socktrans((struct socket *)file.f_data, i);
351 else if (file.f_type == DTYPE_PIPE) {
353 pipetrans((struct pipe *)file.f_data, i,
358 else if (file.f_type == DTYPE_FIFO) {
360 vtrans((struct vnode *)file.f_data, i,
366 "unknown file type %d for file %d of pid %d\n",
367 file.f_type, i, Pid);
373 dommap(struct kinfo_proc *kp)
375 struct proc *p = &kp->kp_proc;
376 struct vmspace vmspace;
378 struct vm_map_entry entry;
379 vm_map_entry_t entryp;
380 struct vm_object object;
384 if (!KVM_READ(p->p_vmspace, &vmspace, sizeof(vmspace))) {
385 dprintf(stderr, "can't read vmspace at %p for pid %d\n",
386 (void *)p->p_vmspace, Pid);
390 map = &vmspace.vm_map;
392 for (entryp = map->header.next; entryp != &p->p_vmspace->vm_map.header;
393 entryp = entry.next) {
394 if (!KVM_READ(entryp, &entry, sizeof(entry))) {
396 "can't read vm_map_entry at %p for pid %d\n",
397 (void *)entryp, Pid);
401 if (entry.eflags & MAP_ENTRY_IS_SUB_MAP)
404 if ((objp = entry.object.vm_object) == NULL)
407 for (; objp; objp = object.backing_object) {
408 if (!KVM_READ(objp, &object, sizeof(object))) {
410 "can't read vm_object at %p for pid %d\n",
416 prot = entry.protection;
417 fflags = (prot & VM_PROT_READ ? FREAD : 0) |
418 (prot & VM_PROT_WRITE ? FWRITE : 0);
420 switch (object.type) {
422 vtrans((struct vnode *)object.handle, MMAP, fflags);
431 vtrans(struct vnode *vp, int i, int flag)
435 char rw[3], mode[15];
436 char *badtype = NULL, *filename, *getmnton();
438 filename = badtype = NULL;
439 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) {
440 dprintf(stderr, "can't read vnode at %p for pid %d\n",
444 if (vn.v_type == VNON || vn.v_tag == VT_NON)
446 else if (vn.v_type == VBAD)
451 if (!ufs_filestat(&vn, &fst))
455 if (!ufs_filestat(&vn, &fst))
459 if (!nfs_filestat(&vn, &fst))
464 if (!msdosfs_filestat(&vn, &fst))
469 if (!isofs_filestat(&vn, &fst))
474 static char unknown[10];
475 sprintf(badtype = unknown, "?(%x)", vn.v_tag);
485 for (d = devs; d != NULL; d = d->next)
486 if (d->fsid == fst.fsid) {
488 if (d->ino == fst.fileid) {
493 if (fsmatch == 0 || (filename == NULL && fsflg == 0))
498 (void)printf(" - - %10s -\n", badtype);
502 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid));
504 (void)printf(" %-8s", getmnton(vn.v_mount));
506 (void)sprintf(mode, "%o", fst.mode);
508 strmode(fst.mode, mode);
509 (void)printf(" %6ld %10s", fst.fileid, mode);
515 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ?
516 S_IFCHR : S_IFBLK)) == NULL))
517 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev));
519 printf(" %6s", name);
523 printf(" %6lu", fst.size);
531 if (filename && !fsflg)
532 printf(" %s", filename);
537 ufs_filestat(struct vnode *vp, struct filestat *fsp)
541 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) {
542 dprintf(stderr, "can't read inode at %p for pid %d\n",
543 (void *)VTOI(vp), Pid);
547 * The st_dev from stat(2) is a udev_t. These kernel structures
548 * contain dev_t structures. We need to convert to udev to make
551 fsp->fsid = dev2udev(inode.i_dev);
552 fsp->fileid = (long)inode.i_number;
553 fsp->mode = (mode_t)inode.i_mode;
554 fsp->size = (u_long)inode.i_size;
555 fsp->rdev = inode.i_rdev;
561 nfs_filestat(struct vnode *vp, struct filestat *fsp)
563 struct nfsnode nfsnode;
564 register mode_t mode;
566 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) {
567 dprintf(stderr, "can't read nfsnode at %p for pid %d\n",
568 (void *)VTONFS(vp), Pid);
571 fsp->fsid = nfsnode.n_vattr.va_fsid;
572 fsp->fileid = nfsnode.n_vattr.va_fileid;
573 fsp->size = nfsnode.n_size;
574 fsp->rdev = nfsnode.n_vattr.va_rdev;
575 mode = (mode_t)nfsnode.n_vattr.va_mode;
576 switch (vp->v_type) {
609 getmnton(struct mount *m)
611 static struct mount mount;
615 char mntonname[MNAMELEN];
617 register struct mtab *mt;
619 for (mt = mhead; mt != NULL; mt = mt->next)
621 return (mt->mntonname);
622 if (!KVM_READ(m, &mount, sizeof(struct mount))) {
623 warnx("can't read mount table at %p", (void *)m);
626 if ((mt = malloc(sizeof (struct mtab))) == NULL)
629 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN);
632 return (mt->mntonname);
636 pipetrans(struct pipe *pi, int i, int flag)
644 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) {
645 dprintf(stderr, "can't read pipe at %p\n", (void *)pi);
649 printf("* pipe %8lx <-> %8lx", (u_long)pi, (u_long)pip.pipe_peer);
650 printf(" %6d", (int)pip.pipe_buffer.cnt);
665 socktrans(struct socket *sock, int i)
667 static char *stypename[] = {
677 struct protosw proto;
682 char dname[32], *strcpy();
687 if (!KVM_READ(sock, &so, sizeof(struct socket))) {
688 dprintf(stderr, "can't read sock at %p\n", (void *)sock);
692 /* fill in protosw entry */
693 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) {
694 dprintf(stderr, "can't read protosw at %p",
695 (void *)so.so_proto);
700 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) {
701 dprintf(stderr, "can't read domain at %p\n",
702 (void *)proto.pr_domain);
706 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname,
707 sizeof(dname) - 1)) < 0) {
708 dprintf(stderr, "can't read domain name at %p\n",
709 (void *)dom.dom_name);
715 if ((u_short)so.so_type > STYPEMAX)
716 printf("* %s ?%d", dname, so.so_type);
718 printf("* %s %s", dname, stypename[so.so_type]);
721 * protocol specific formatting
723 * Try to find interesting things to print. For tcp, the interesting
724 * thing is the address of the tcpcb, for udp and others, just the
725 * inpcb (socket pcb). For unix domain, its the address of the socket
726 * pcb and the address of the connected pcb (if connected). Otherwise
727 * just print the protocol number and address of the socket itself.
728 * The idea is not to duplicate netstat, but to make available enough
729 * information for further analysis.
731 switch(dom.dom_family) {
734 getinetproto(proto.pr_protocol);
735 if (proto.pr_protocol == IPPROTO_TCP ) {
737 if (kvm_read(kd, (u_long)so.so_pcb,
738 (char *)&inpcb, sizeof(struct inpcb))
739 != sizeof(struct inpcb)) {
741 "can't read inpcb at %p\n",
745 printf(" %lx", (u_long)inpcb.inp_ppcb);
749 printf(" %lx", (u_long)so.so_pcb);
752 /* print address of pcb and connected pcb */
754 printf(" %lx", (u_long)so.so_pcb);
755 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb,
756 sizeof(struct unpcb)) != sizeof(struct unpcb)){
757 dprintf(stderr, "can't read unpcb at %p\n",
761 if (unpcb.unp_conn) {
762 char shoconn[4], *cp;
765 if (!(so.so_state & SS_CANTRCVMORE))
768 if (!(so.so_state & SS_CANTSENDMORE))
771 printf(" %s %lx", shoconn,
772 (u_long)unpcb.unp_conn);
777 /* print protocol number and socket address */
778 printf(" %d %lx", proto.pr_protocol, (u_long)sock);
788 * Read the specinfo structure in the kernel (as pointed to by a dev_t)
789 * in order to work out the associated udev_t
796 if (KVM_READ(dev, &si, sizeof si)) {
799 dprintf(stderr, "can't convert dev_t %x to a udev_t\n", dev);
806 * print name of protocol number
809 getinetproto(int number)
812 register struct protoent *pe;
815 setprotoent(++isopen);
816 if ((pe = getprotobynumber(number)) != NULL)
817 printf(" %s", pe->p_name);
819 printf(" %d", number);
823 getfname(char *filename)
828 if (stat(filename, &statbuf)) {
829 warn("%s", filename);
832 if ((cur = malloc(sizeof(DEVS))) == NULL)
837 cur->ino = statbuf.st_ino;
838 cur->fsid = statbuf.st_dev;
839 cur->name = filename;
846 (void)fprintf(stderr,
847 "usage: fstat [-fmnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n");