1/*-
2 * Copyright (c) 1988, 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 const char copyright[] =
36"@(#) Copyright (c) 1988, 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
38#endif /* not lint */
39
40#ifndef lint
41#if 0
42static char sccsid[] = "@(#)fstat.c 8.3 (Berkeley) 5/2/95";
43#endif
44#endif /* not lint */
45#include <sys/cdefs.h>
46__FBSDID("$FreeBSD: head/usr.bin/fstat/fstat.c 130489 2004-06-14 20:54:18Z rwatson $");
47
48#include <sys/param.h>
49#include <sys/time.h>
50#include <sys/proc.h>
51#include <sys/user.h>
52#include <sys/stat.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>
58#include <sys/un.h>
59#include <sys/unpcb.h>
60#include <sys/sysctl.h>
61#include <sys/filedesc.h>
62#include <sys/queue.h>
63#include <sys/pipe.h>
64#define _KERNEL
65#include <sys/conf.h>
66#include <sys/file.h>
67#include <sys/mount.h>
68#include <ufs/ufs/quota.h>
69#include <ufs/ufs/inode.h>
70#include <fs/devfs/devfs.h>
71#undef _KERNEL
72#include <nfs/nfsproto.h>
73#include <nfs/rpcv2.h>
74#include <nfsclient/nfs.h>
75#include <nfsclient/nfsnode.h>
76
77
78#include <vm/vm.h>
79#include <vm/vm_map.h>
80#include <vm/vm_object.h>
81
82#include <net/route.h>
83#include <netinet/in.h>
84#include <netinet/in_systm.h>
85#include <netinet/ip.h>
86#include <netinet/in_pcb.h>
87
88#include <ctype.h>
89#include <err.h>
90#include <fcntl.h>
91#include <kvm.h>
92#include <limits.h>
93#include <nlist.h>
94#include <paths.h>
95#include <pwd.h>
96#include <stdio.h>
97#include <stdlib.h>
98#include <string.h>
99#include <unistd.h>
100#include <netdb.h>
101
102#include "fstat.h"
103
104#define TEXT -1
105#define CDIR -2
106#define RDIR -3
107#define TRACE -4
108#define MMAP -5
109
110DEVS *devs;
111
112#ifdef notdef
113struct nlist nl[] = {
114 { "" },
115};
116#endif
117
118int fsflg, /* show files on same filesystem as file(s) argument */
119 pflg, /* show files open by a particular pid */
120 uflg; /* show files open by a particular (effective) user */
121int checkfile; /* true if restricting to particular files or filesystems */
122int nflg; /* (numerical) display f.s. and rdev as dev_t */
123int vflg; /* display errors in locating kernel data objects etc... */
124int mflg; /* include memory-mapped files */
125
126
127struct file **ofiles; /* buffer of pointers to file structures */
128int maxfiles;
129#define ALLOC_OFILES(d) \
130 if ((d) > maxfiles) { \
131 free(ofiles); \
132 ofiles = malloc((d) * sizeof(struct file *)); \
133 if (ofiles == NULL) { \
134 err(1, NULL); \
135 } \
136 maxfiles = (d); \
137 }
138
139char *memf, *nlistf;
140kvm_t *kd;
141
142static void fstat_kvm(int, int);
143static void fstat_sysctl(int, int);
144void dofiles(struct kinfo_proc *kp);
145void dommap(struct kinfo_proc *kp);
146void vtrans(struct vnode *vp, int i, int flag);
147int ufs_filestat(struct vnode *vp, struct filestat *fsp);
148int nfs_filestat(struct vnode *vp, struct filestat *fsp);
149int devfs_filestat(struct vnode *vp, struct filestat *fsp);
150char *getmnton(struct mount *m);
151void pipetrans(struct pipe *pi, int i, int flag);
152void socktrans(struct socket *sock, int i);
153void getinetproto(int number);
154int getfname(const char *filename);
155void usage(void);
156
157
158int
159main(argc, argv)
160 int argc;
161 char **argv;
162{
163 struct passwd *passwd;
164 int arg, ch, what;
165
166 arg = 0;
167 what = KERN_PROC_ALL;
168 nlistf = memf = NULL;
169 while ((ch = getopt(argc, argv, "fmnp:u:vN:M:")) != -1)
170 switch((char)ch) {
171 case 'f':
172 fsflg = 1;
173 break;
174 case 'M':
175 memf = optarg;
176 break;
177 case 'N':
178 nlistf = optarg;
179 break;
180 case 'm':
181 mflg = 1;
182 break;
183 case 'n':
184 nflg = 1;
185 break;
186 case 'p':
187 if (pflg++)
188 usage();
189 if (!isdigit(*optarg)) {
190 warnx("-p requires a process id");
191 usage();
192 }
193 what = KERN_PROC_PID;
194 arg = atoi(optarg);
195 break;
196 case 'u':
197 if (uflg++)
198 usage();
199 if (!(passwd = getpwnam(optarg)))
200 errx(1, "%s: unknown uid", optarg);
201 what = KERN_PROC_UID;
202 arg = passwd->pw_uid;
203 break;
204 case 'v':
205 vflg = 1;
206 break;
207 case '?':
208 default:
209 usage();
210 }
211
212 if (*(argv += optind)) {
213 for (; *argv; ++argv) {
214 if (getfname(*argv))
215 checkfile = 1;
216 }
217 if (!checkfile) /* file(s) specified, but none accessable */
218 exit(1);
219 }
220
221 if (fsflg && !checkfile) {
222 /* -f with no files means use wd */
223 if (getfname(".") == 0)
224 exit(1);
225 checkfile = 1;
226 }
227
228 if (memf != NULL)
229 fstat_kvm(what, arg);
230 else
231 fstat_sysctl(what, arg);
232 exit(0);
233}
234
235static void
236print_header(void)
237{
238
239 if (nflg)
240 printf("%s",
241"USER CMD PID FD DEV INUM MODE SZ|DV R/W");
242 else
243 printf("%s",
244"USER CMD PID FD MOUNT INUM MODE SZ|DV R/W");
245 if (checkfile && fsflg == 0)
246 printf(" NAME\n");
247 else
248 putchar('\n');
249}
250
251static void
252fstat_kvm(int what, int arg)
253{
254 struct kinfo_proc *p, *plast;
255 char buf[_POSIX2_LINE_MAX];
256 int cnt;
257
258 ALLOC_OFILES(256); /* reserve space for file pointers */
259
260 /*
261 * Discard setgid privileges if not the running kernel so that bad
262 * guys can't print interesting stuff from kernel memory.
263 */
264 if (nlistf != NULL || memf != NULL)
265 setgid(getgid());
266
267 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL)
268 errx(1, "%s", buf);
269 setgid(getgid());
270#ifdef notdef
271 if (kvm_nlist(kd, nl) != 0)
272 errx(1, "no namelist: %s", kvm_geterr(kd));
273#endif
274 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL)
275 errx(1, "%s", kvm_geterr(kd));
276 print_header();
277 for (plast = &p[cnt]; p < plast; ++p) {
278 if (p->ki_stat == SZOMB)
279 continue;
280 dofiles(p);
281 if (mflg)
282 dommap(p);
283 }
284}
285
286static void
287fstat_sysctl(int what, int arg)
288{
289
290 /* not yet implemented */
291 fstat_kvm(what, arg);
292}
293
294const char *Uname, *Comm;
295int Pid;
296
297#define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \
298 switch(i) { \
299 case TEXT: \
300 printf(" text"); \
301 break; \
302 case CDIR: \
303 printf(" wd"); \
304 break; \
305 case RDIR: \
306 printf(" root"); \
307 break; \
308 case TRACE: \
309 printf(" tr"); \
310 break; \
311 case MMAP: \
312 printf(" mmap"); \
313 break; \
314 default: \
315 printf(" %4d", i); \
316 break; \
317 }
318
319/*
320 * print open files attributed to this process
321 */
322void
323dofiles(kp)
324 struct kinfo_proc *kp;
325{
326 int i;
327 struct file file;
328 struct filedesc0 filed0;
329#define filed filed0.fd_fd
330
331 Uname = user_from_uid(kp->ki_uid, 0);
332 Pid = kp->ki_pid;
333 Comm = kp->ki_comm;
334
335 if (kp->ki_fd == NULL)
336 return;
337 if (!KVM_READ(kp->ki_fd, &filed0, sizeof (filed0))) {
338 dprintf(stderr, "can't read filedesc at %p for pid %d\n",
339 (void *)kp->ki_fd, Pid);
340 return;
341 }
342 /*
343 * root directory vnode, if one
344 */
345 if (filed.fd_rdir)
346 vtrans(filed.fd_rdir, RDIR, FREAD);
347 /*
348 * current working directory vnode
349 */
350 vtrans(filed.fd_cdir, CDIR, FREAD);
351 /*
352 * ktrace vnode, if one
353 */
354 if (kp->ki_tracep)
355 vtrans(kp->ki_tracep, TRACE, FREAD|FWRITE);
356 /*
357 * text vnode, if one
358 */
359 if (kp->ki_textvp)
360 vtrans(kp->ki_textvp, TEXT, FREAD);
361 /*
362 * open files
363 */
364#define FPSIZE (sizeof (struct file *))
365 ALLOC_OFILES(filed.fd_lastfile+1);
366 if (filed.fd_nfiles > NDFILE) {
367 if (!KVM_READ(filed.fd_ofiles, ofiles,
368 (filed.fd_lastfile+1) * FPSIZE)) {
369 dprintf(stderr,
370 "can't read file structures at %p for pid %d\n",
371 (void *)filed.fd_ofiles, Pid);
372 return;
373 }
374 } else
375 bcopy(filed0.fd_dfiles, ofiles, (filed.fd_lastfile+1) * FPSIZE);
376 for (i = 0; i <= filed.fd_lastfile; i++) {
377 if (ofiles[i] == NULL)
378 continue;
379 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) {
380 dprintf(stderr, "can't read file %d at %p for pid %d\n",
381 i, (void *)ofiles[i], Pid);
382 continue;
383 }
384 if (file.f_type == DTYPE_VNODE)
385 vtrans(file.f_data, i, file.f_flag);
386 else if (file.f_type == DTYPE_SOCKET) {
387 if (checkfile == 0)
388 socktrans(file.f_data, i);
389 }
390#ifdef DTYPE_PIPE
391 else if (file.f_type == DTYPE_PIPE) {
392 if (checkfile == 0)
393 pipetrans(file.f_data, i, file.f_flag);
394 }
395#endif
396#ifdef DTYPE_FIFO
397 else if (file.f_type == DTYPE_FIFO) {
398 if (checkfile == 0)
399 vtrans(file.f_data, i, file.f_flag);
400 }
401#endif
402 else {
403 dprintf(stderr,
404 "unknown file type %d for file %d of pid %d\n",
405 file.f_type, i, Pid);
406 }
407 }
408}
409
410void
411dommap(kp)
412 struct kinfo_proc *kp;
413{
414 vm_map_t map;
415 struct vmspace vmspace;
416 struct vm_map_entry entry;
417 vm_map_entry_t entryp;
418 struct vm_object object;
419 vm_object_t objp;
420 int prot, fflags;
421
422 if (!KVM_READ(kp->ki_vmspace, &vmspace, sizeof(vmspace))) {
423 dprintf(stderr,
424 "can't read vmspace at %p for pid %d\n",
425 (void *)kp->ki_vmspace, Pid);
426 return;
427 }
428 map = &vmspace.vm_map;
429
430 for (entryp = map->header.next;
431 entryp != &kp->ki_vmspace->vm_map.header; entryp = entry.next) {
432 if (!KVM_READ(entryp, &entry, sizeof(entry))) {
433 dprintf(stderr,
434 "can't read vm_map_entry at %p for pid %d\n",
435 (void *)entryp, Pid);
436 return;
437 }
438
439 if (entry.eflags & MAP_ENTRY_IS_SUB_MAP)
440 continue;
441
442 if ((objp = entry.object.vm_object) == NULL)
443 continue;
444
445 for (; objp; objp = object.backing_object) {
446 if (!KVM_READ(objp, &object, sizeof(object))) {
447 dprintf(stderr,
448 "can't read vm_object at %p for pid %d\n",
449 (void *)objp, Pid);
450 return;
451 }
452 }
453
454 prot = entry.protection;
455 fflags = (prot & VM_PROT_READ ? FREAD : 0) |
456 (prot & VM_PROT_WRITE ? FWRITE : 0);
457
458 switch (object.type) {
459 case OBJT_VNODE:
460 vtrans((struct vnode *)object.handle, MMAP, fflags);
461 break;
462 default:
463 break;
464 }
465 }
466}
467
468void
469vtrans(vp, i, flag)
470 struct vnode *vp;
471 int i;
472 int flag;
473{
474 struct vnode vn;
475 struct filestat fst;
476 char rw[3], mode[15], tagstr[12], *tagptr;
477 const char *badtype, *filename;
478
479 filename = badtype = NULL;
480 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) {
481 dprintf(stderr, "can't read vnode at %p for pid %d\n",
482 (void *)vp, Pid);
483 return;
484 }
485 if (!KVM_READ(&vp->v_tag, &tagptr, sizeof tagptr) ||
486 !KVM_READ(tagptr, tagstr, sizeof tagstr)) {
487 dprintf(stderr, "can't read v_tag at %p for pid %d\n",
488 (void *)vp, Pid);
489 return;
490 }
491 tagstr[sizeof(tagstr) - 1] = '\0';
492 if (vn.v_type == VNON)
493 badtype = "none";
494 else if (vn.v_type == VBAD)
495 badtype = "bad";
496 else {
497 if (!strcmp("ufs", tagstr)) {
498 if (!ufs_filestat(&vn, &fst))
499 badtype = "error";
500 } else if (!strcmp("devfs", tagstr)) {
501 if (!devfs_filestat(&vn, &fst))
502 badtype = "error";
503 } else if (!strcmp("nfs", tagstr)) {
504 if (!nfs_filestat(&vn, &fst))
505 badtype = "error";
506 } else if (!strcmp("msdosfs", tagstr)) {
507 if (!msdosfs_filestat(&vn, &fst))
508 badtype = "error";
509 } else if (!strcmp("isofs", tagstr)) {
510 if (!isofs_filestat(&vn, &fst))
511 badtype = "error";
512 } else {
513 static char unknown[32];
514 snprintf(unknown, sizeof unknown, "?(%s)", tagstr);
515 badtype = unknown;
516 }
517 }
518 if (checkfile) {
519 int fsmatch = 0;
520 DEVS *d;
521
522 if (badtype)
523 return;
524 for (d = devs; d != NULL; d = d->next)
525 if (d->fsid == fst.fsid) {
526 fsmatch = 1;
527 if (d->ino == fst.fileid) {
528 filename = d->name;
529 break;
530 }
531 }
532 if (fsmatch == 0 || (filename == NULL && fsflg == 0))
533 return;
534 }
535 PREFIX(i);
536 if (badtype) {
537 (void)printf(" - - %10s -\n", badtype);
538 return;
539 }
540 if (nflg)
541 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid));
542 else
543 (void)printf(" %-8s", getmnton(vn.v_mount));
544 if (nflg)
545 (void)sprintf(mode, "%o", fst.mode);
546 else
547 strmode(fst.mode, mode);
548 (void)printf(" %6ld %10s", fst.fileid, mode);
549 switch (vn.v_type) {
550 case VBLK:
551 case VCHR: {
552 char *name;
553
554 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ?
555 S_IFCHR : S_IFBLK)) == NULL))
556 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev));
557 else
558 printf(" %6s", name);
559 break;
560 }
561 default:
562 printf(" %6lu", fst.size);
563 }
564 rw[0] = '\0';
565 if (flag & FREAD)
566 strcat(rw, "r");
567 if (flag & FWRITE)
568 strcat(rw, "w");
569 printf(" %2s", rw);
570 if (filename && !fsflg)
571 printf(" %s", filename);
572 putchar('\n');
573}
574
575int
576ufs_filestat(vp, fsp)
577 struct vnode *vp;
578 struct filestat *fsp;
579{
580 struct inode inode;
581
582 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) {
583 dprintf(stderr, "can't read inode at %p for pid %d\n",
584 (void *)VTOI(vp), Pid);
585 return 0;
586 }
587 /*
588 * The st_dev from stat(2) is a udev_t. These kernel structures
589 * contain dev_t structures. We need to convert to udev to make
590 * comparisons
591 */
592 fsp->fsid = dev2udev(inode.i_dev);
593 fsp->fileid = (long)inode.i_number;
594 fsp->mode = (mode_t)inode.i_mode;
595 fsp->size = (u_long)inode.i_size;
596#if should_be_but_is_hard
597 /* XXX - need to load i_ump and i_din[12] from kernel memory */
598 if (inode.i_ump->um_fstype == UFS1)
599 fsp->rdev = inode.i_din1->di_rdev;
600 else
601 fsp->rdev = inode.i_din2->di_rdev;
602#else
603 fsp->rdev = 0;
604#endif
605
606 return 1;
607}
608
609int
610devfs_filestat(vp, fsp)
611 struct vnode *vp;
612 struct filestat *fsp;
613{
614 struct devfs_dirent devfs_dirent;
615 struct mount mount;
616 struct vnode vnode;
617
618 if (!KVM_READ(vp->v_data, &devfs_dirent, sizeof (devfs_dirent))) {
619 dprintf(stderr, "can't read devfs_dirent at %p for pid %d\n",
620 (void *)vp->v_data, Pid);
621 return 0;
622 }
623 if (!KVM_READ(vp->v_mount, &mount, sizeof (mount))) {
624 dprintf(stderr, "can't read mount at %p for pid %d\n",
625 (void *)vp->v_mount, Pid);
626 return 0;
627 }
628 if (!KVM_READ(devfs_dirent.de_vnode, &vnode, sizeof (vnode))) {
629 dprintf(stderr, "can't read vnode at %p for pid %d\n",
630 (void *)devfs_dirent.de_vnode, Pid);
631 return 0;
632 }
633 fsp->fsid = (long)mount.mnt_stat.f_fsid.val[0];
634 fsp->fileid = devfs_dirent.de_inode;
635 fsp->mode = (devfs_dirent.de_mode & ~S_IFMT) | S_IFCHR;
636 fsp->size = 0;
637 fsp->rdev = dev2udev(vnode.v_rdev);
638
639 return 1;
640}
641
642int
643nfs_filestat(vp, fsp)
644 struct vnode *vp;
645 struct filestat *fsp;
646{
647 struct nfsnode nfsnode;
648 mode_t mode;
649
650 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) {
651 dprintf(stderr, "can't read nfsnode at %p for pid %d\n",
652 (void *)VTONFS(vp), Pid);
653 return 0;
654 }
655 fsp->fsid = nfsnode.n_vattr.va_fsid;
656 fsp->fileid = nfsnode.n_vattr.va_fileid;
657 fsp->size = nfsnode.n_size;
658 fsp->rdev = nfsnode.n_vattr.va_rdev;
659 mode = (mode_t)nfsnode.n_vattr.va_mode;
660 switch (vp->v_type) {
661 case VREG:
662 mode |= S_IFREG;
663 break;
664 case VDIR:
665 mode |= S_IFDIR;
666 break;
667 case VBLK:
668 mode |= S_IFBLK;
669 break;
670 case VCHR:
671 mode |= S_IFCHR;
672 break;
673 case VLNK:
674 mode |= S_IFLNK;
675 break;
676 case VSOCK:
677 mode |= S_IFSOCK;
678 break;
679 case VFIFO:
680 mode |= S_IFIFO;
681 break;
682 case VNON:
683 case VBAD:
684 return 0;
685 };
686 fsp->mode = mode;
687
688 return 1;
689}
690
691
692char *
693getmnton(m)
694 struct mount *m;
695{
696 static struct mount mount;
697 static struct mtab {
698 struct mtab *next;
699 struct mount *m;
700 char mntonname[MNAMELEN];
701 } *mhead = NULL;
702 struct mtab *mt;
703
704 for (mt = mhead; mt != NULL; mt = mt->next)
705 if (m == mt->m)
706 return (mt->mntonname);
707 if (!KVM_READ(m, &mount, sizeof(struct mount))) {
708 warnx("can't read mount table at %p", (void *)m);
709 return (NULL);
710 }
711 if ((mt = malloc(sizeof (struct mtab))) == NULL)
712 err(1, NULL);
713 mt->m = m;
714 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN);
715 mt->next = mhead;
716 mhead = mt;
717 return (mt->mntonname);
718}
719
720void
721pipetrans(pi, i, flag)
722 struct pipe *pi;
723 int i;
724 int flag;
725{
726 struct pipe pip;
727 char rw[3];
728
729 PREFIX(i);
730
731 /* fill in socket */
732 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) {
733 dprintf(stderr, "can't read pipe at %p\n", (void *)pi);
734 goto bad;
735 }
736
737 printf("* pipe %8lx <-> %8lx", (u_long)pi, (u_long)pip.pipe_peer);
738 printf(" %6d", (int)pip.pipe_buffer.cnt);
739 rw[0] = '\0';
740 if (flag & FREAD)
741 strcat(rw, "r");
742 if (flag & FWRITE)
743 strcat(rw, "w");
744 printf(" %2s", rw);
745 putchar('\n');
746 return;
747
748bad:
749 printf("* error\n");
750}
751
752void
753socktrans(sock, i)
754 struct socket *sock;
755 int i;
756{
757 static const char *stypename[] = {
758 "unused", /* 0 */
759 "stream", /* 1 */
760 "dgram", /* 2 */
761 "raw", /* 3 */
762 "rdm", /* 4 */
763 "seqpak" /* 5 */
764 };
765#define STYPEMAX 5
766 struct socket so;
767 struct protosw proto;
768 struct domain dom;
769 struct inpcb inpcb;
770 struct unpcb unpcb;
771 int len;
772 char dname[32];
773
774 PREFIX(i);
775
776 /* fill in socket */
777 if (!KVM_READ(sock, &so, sizeof(struct socket))) {
778 dprintf(stderr, "can't read sock at %p\n", (void *)sock);
779 goto bad;
780 }
781
782 /* fill in protosw entry */
783 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) {
784 dprintf(stderr, "can't read protosw at %p",
785 (void *)so.so_proto);
786 goto bad;
787 }
788
789 /* fill in domain */
790 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) {
791 dprintf(stderr, "can't read domain at %p\n",
792 (void *)proto.pr_domain);
793 goto bad;
794 }
795
796 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname,
797 sizeof(dname) - 1)) < 0) {
798 dprintf(stderr, "can't read domain name at %p\n",
799 (void *)dom.dom_name);
800 dname[0] = '\0';
801 }
802 else
803 dname[len] = '\0';
804
805 if ((u_short)so.so_type > STYPEMAX)
806 printf("* %s ?%d", dname, so.so_type);
807 else
808 printf("* %s %s", dname, stypename[so.so_type]);
809
810 /*
811 * protocol specific formatting
812 *
813 * Try to find interesting things to print. For tcp, the interesting
814 * thing is the address of the tcpcb, for udp and others, just the
815 * inpcb (socket pcb). For unix domain, its the address of the socket
816 * pcb and the address of the connected pcb (if connected). Otherwise
817 * just print the protocol number and address of the socket itself.
818 * The idea is not to duplicate netstat, but to make available enough
819 * information for further analysis.
820 */
821 switch(dom.dom_family) {
822 case AF_INET:
823 case AF_INET6:
824 getinetproto(proto.pr_protocol);
825 if (proto.pr_protocol == IPPROTO_TCP ) {
826 if (so.so_pcb) {
827 if (kvm_read(kd, (u_long)so.so_pcb,
828 (char *)&inpcb, sizeof(struct inpcb))
829 != sizeof(struct inpcb)) {
830 dprintf(stderr,
831 "can't read inpcb at %p\n",
832 (void *)so.so_pcb);
833 goto bad;
834 }
835 printf(" %lx", (u_long)inpcb.inp_ppcb);
836 }
837 }
838 else if (so.so_pcb)
839 printf(" %lx", (u_long)so.so_pcb);
840 break;
841 case AF_UNIX:
842 /* print address of pcb and connected pcb */
843 if (so.so_pcb) {
844 printf(" %lx", (u_long)so.so_pcb);
845 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb,
846 sizeof(struct unpcb)) != sizeof(struct unpcb)){
847 dprintf(stderr, "can't read unpcb at %p\n",
848 (void *)so.so_pcb);
849 goto bad;
850 }
851 if (unpcb.unp_conn) {
852 char shoconn[4], *cp;
853
854 cp = shoconn;
855 if (!(so.so_rcv.sb_state & SBS_CANTRCVMORE))
856 *cp++ = '<';
857 *cp++ = '-';
858 if (!(so.so_snd.sb_state & SBS_CANTSENDMORE))
859 *cp++ = '>';
860 *cp = '\0';
861 printf(" %s %lx", shoconn,
862 (u_long)unpcb.unp_conn);
863 }
864 }
865 break;
866 default:
867 /* print protocol number and socket address */
868 printf(" %d %lx", proto.pr_protocol, (u_long)sock);
869 }
870 printf("\n");
871 return;
872bad:
873 printf("* error\n");
874}
875
876
877/*
878 * Read the cdev structure in the kernel (as pointed to by a dev_t)
879 * in order to work out the associated udev_t
880 */
881udev_t
882dev2udev(dev)
883 struct cdev *dev;
884{
885 struct cdev si;
886
887 if (KVM_READ(dev, &si, sizeof si)) {
888 return si.si_udev;
889 } else {
890 dprintf(stderr, "can't convert dev_t %x to a udev_t\n", dev);
891 return -1;
892 }
893}
894
895/*
896 * getinetproto --
897 * print name of protocol number
898 */
899void
900getinetproto(number)
901 int number;
902{
903 static int isopen;
904 struct protoent *pe;
905
906 if (!isopen)
907 setprotoent(++isopen);
908 if ((pe = getprotobynumber(number)) != NULL)
909 printf(" %s", pe->p_name);
910 else
911 printf(" %d", number);
912}
913
914int
915getfname(filename)
916 const char *filename;
917{
918 struct stat statbuf;
919 DEVS *cur;
920
921 if (stat(filename, &statbuf)) {
922 warn("%s", filename);
923 return(0);
924 }
925 if ((cur = malloc(sizeof(DEVS))) == NULL)
926 err(1, NULL);
927 cur->next = devs;
928 devs = cur;
929
930 cur->ino = statbuf.st_ino;
931 cur->fsid = statbuf.st_dev;
932 cur->name = filename;
933 return(1);
934}
935
936void
937usage()
938{
939 (void)fprintf(stderr,
940 "usage: fstat [-fmnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n");
941 exit(1);
942}
2 * Copyright (c) 1988, 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 const char copyright[] =
36"@(#) Copyright (c) 1988, 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
38#endif /* not lint */
39
40#ifndef lint
41#if 0
42static char sccsid[] = "@(#)fstat.c 8.3 (Berkeley) 5/2/95";
43#endif
44#endif /* not lint */
45#include <sys/cdefs.h>
46__FBSDID("$FreeBSD: head/usr.bin/fstat/fstat.c 130489 2004-06-14 20:54:18Z rwatson $");
47
48#include <sys/param.h>
49#include <sys/time.h>
50#include <sys/proc.h>
51#include <sys/user.h>
52#include <sys/stat.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>
58#include <sys/un.h>
59#include <sys/unpcb.h>
60#include <sys/sysctl.h>
61#include <sys/filedesc.h>
62#include <sys/queue.h>
63#include <sys/pipe.h>
64#define _KERNEL
65#include <sys/conf.h>
66#include <sys/file.h>
67#include <sys/mount.h>
68#include <ufs/ufs/quota.h>
69#include <ufs/ufs/inode.h>
70#include <fs/devfs/devfs.h>
71#undef _KERNEL
72#include <nfs/nfsproto.h>
73#include <nfs/rpcv2.h>
74#include <nfsclient/nfs.h>
75#include <nfsclient/nfsnode.h>
76
77
78#include <vm/vm.h>
79#include <vm/vm_map.h>
80#include <vm/vm_object.h>
81
82#include <net/route.h>
83#include <netinet/in.h>
84#include <netinet/in_systm.h>
85#include <netinet/ip.h>
86#include <netinet/in_pcb.h>
87
88#include <ctype.h>
89#include <err.h>
90#include <fcntl.h>
91#include <kvm.h>
92#include <limits.h>
93#include <nlist.h>
94#include <paths.h>
95#include <pwd.h>
96#include <stdio.h>
97#include <stdlib.h>
98#include <string.h>
99#include <unistd.h>
100#include <netdb.h>
101
102#include "fstat.h"
103
104#define TEXT -1
105#define CDIR -2
106#define RDIR -3
107#define TRACE -4
108#define MMAP -5
109
110DEVS *devs;
111
112#ifdef notdef
113struct nlist nl[] = {
114 { "" },
115};
116#endif
117
118int fsflg, /* show files on same filesystem as file(s) argument */
119 pflg, /* show files open by a particular pid */
120 uflg; /* show files open by a particular (effective) user */
121int checkfile; /* true if restricting to particular files or filesystems */
122int nflg; /* (numerical) display f.s. and rdev as dev_t */
123int vflg; /* display errors in locating kernel data objects etc... */
124int mflg; /* include memory-mapped files */
125
126
127struct file **ofiles; /* buffer of pointers to file structures */
128int maxfiles;
129#define ALLOC_OFILES(d) \
130 if ((d) > maxfiles) { \
131 free(ofiles); \
132 ofiles = malloc((d) * sizeof(struct file *)); \
133 if (ofiles == NULL) { \
134 err(1, NULL); \
135 } \
136 maxfiles = (d); \
137 }
138
139char *memf, *nlistf;
140kvm_t *kd;
141
142static void fstat_kvm(int, int);
143static void fstat_sysctl(int, int);
144void dofiles(struct kinfo_proc *kp);
145void dommap(struct kinfo_proc *kp);
146void vtrans(struct vnode *vp, int i, int flag);
147int ufs_filestat(struct vnode *vp, struct filestat *fsp);
148int nfs_filestat(struct vnode *vp, struct filestat *fsp);
149int devfs_filestat(struct vnode *vp, struct filestat *fsp);
150char *getmnton(struct mount *m);
151void pipetrans(struct pipe *pi, int i, int flag);
152void socktrans(struct socket *sock, int i);
153void getinetproto(int number);
154int getfname(const char *filename);
155void usage(void);
156
157
158int
159main(argc, argv)
160 int argc;
161 char **argv;
162{
163 struct passwd *passwd;
164 int arg, ch, what;
165
166 arg = 0;
167 what = KERN_PROC_ALL;
168 nlistf = memf = NULL;
169 while ((ch = getopt(argc, argv, "fmnp:u:vN:M:")) != -1)
170 switch((char)ch) {
171 case 'f':
172 fsflg = 1;
173 break;
174 case 'M':
175 memf = optarg;
176 break;
177 case 'N':
178 nlistf = optarg;
179 break;
180 case 'm':
181 mflg = 1;
182 break;
183 case 'n':
184 nflg = 1;
185 break;
186 case 'p':
187 if (pflg++)
188 usage();
189 if (!isdigit(*optarg)) {
190 warnx("-p requires a process id");
191 usage();
192 }
193 what = KERN_PROC_PID;
194 arg = atoi(optarg);
195 break;
196 case 'u':
197 if (uflg++)
198 usage();
199 if (!(passwd = getpwnam(optarg)))
200 errx(1, "%s: unknown uid", optarg);
201 what = KERN_PROC_UID;
202 arg = passwd->pw_uid;
203 break;
204 case 'v':
205 vflg = 1;
206 break;
207 case '?':
208 default:
209 usage();
210 }
211
212 if (*(argv += optind)) {
213 for (; *argv; ++argv) {
214 if (getfname(*argv))
215 checkfile = 1;
216 }
217 if (!checkfile) /* file(s) specified, but none accessable */
218 exit(1);
219 }
220
221 if (fsflg && !checkfile) {
222 /* -f with no files means use wd */
223 if (getfname(".") == 0)
224 exit(1);
225 checkfile = 1;
226 }
227
228 if (memf != NULL)
229 fstat_kvm(what, arg);
230 else
231 fstat_sysctl(what, arg);
232 exit(0);
233}
234
235static void
236print_header(void)
237{
238
239 if (nflg)
240 printf("%s",
241"USER CMD PID FD DEV INUM MODE SZ|DV R/W");
242 else
243 printf("%s",
244"USER CMD PID FD MOUNT INUM MODE SZ|DV R/W");
245 if (checkfile && fsflg == 0)
246 printf(" NAME\n");
247 else
248 putchar('\n');
249}
250
251static void
252fstat_kvm(int what, int arg)
253{
254 struct kinfo_proc *p, *plast;
255 char buf[_POSIX2_LINE_MAX];
256 int cnt;
257
258 ALLOC_OFILES(256); /* reserve space for file pointers */
259
260 /*
261 * Discard setgid privileges if not the running kernel so that bad
262 * guys can't print interesting stuff from kernel memory.
263 */
264 if (nlistf != NULL || memf != NULL)
265 setgid(getgid());
266
267 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL)
268 errx(1, "%s", buf);
269 setgid(getgid());
270#ifdef notdef
271 if (kvm_nlist(kd, nl) != 0)
272 errx(1, "no namelist: %s", kvm_geterr(kd));
273#endif
274 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL)
275 errx(1, "%s", kvm_geterr(kd));
276 print_header();
277 for (plast = &p[cnt]; p < plast; ++p) {
278 if (p->ki_stat == SZOMB)
279 continue;
280 dofiles(p);
281 if (mflg)
282 dommap(p);
283 }
284}
285
286static void
287fstat_sysctl(int what, int arg)
288{
289
290 /* not yet implemented */
291 fstat_kvm(what, arg);
292}
293
294const char *Uname, *Comm;
295int Pid;
296
297#define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \
298 switch(i) { \
299 case TEXT: \
300 printf(" text"); \
301 break; \
302 case CDIR: \
303 printf(" wd"); \
304 break; \
305 case RDIR: \
306 printf(" root"); \
307 break; \
308 case TRACE: \
309 printf(" tr"); \
310 break; \
311 case MMAP: \
312 printf(" mmap"); \
313 break; \
314 default: \
315 printf(" %4d", i); \
316 break; \
317 }
318
319/*
320 * print open files attributed to this process
321 */
322void
323dofiles(kp)
324 struct kinfo_proc *kp;
325{
326 int i;
327 struct file file;
328 struct filedesc0 filed0;
329#define filed filed0.fd_fd
330
331 Uname = user_from_uid(kp->ki_uid, 0);
332 Pid = kp->ki_pid;
333 Comm = kp->ki_comm;
334
335 if (kp->ki_fd == NULL)
336 return;
337 if (!KVM_READ(kp->ki_fd, &filed0, sizeof (filed0))) {
338 dprintf(stderr, "can't read filedesc at %p for pid %d\n",
339 (void *)kp->ki_fd, Pid);
340 return;
341 }
342 /*
343 * root directory vnode, if one
344 */
345 if (filed.fd_rdir)
346 vtrans(filed.fd_rdir, RDIR, FREAD);
347 /*
348 * current working directory vnode
349 */
350 vtrans(filed.fd_cdir, CDIR, FREAD);
351 /*
352 * ktrace vnode, if one
353 */
354 if (kp->ki_tracep)
355 vtrans(kp->ki_tracep, TRACE, FREAD|FWRITE);
356 /*
357 * text vnode, if one
358 */
359 if (kp->ki_textvp)
360 vtrans(kp->ki_textvp, TEXT, FREAD);
361 /*
362 * open files
363 */
364#define FPSIZE (sizeof (struct file *))
365 ALLOC_OFILES(filed.fd_lastfile+1);
366 if (filed.fd_nfiles > NDFILE) {
367 if (!KVM_READ(filed.fd_ofiles, ofiles,
368 (filed.fd_lastfile+1) * FPSIZE)) {
369 dprintf(stderr,
370 "can't read file structures at %p for pid %d\n",
371 (void *)filed.fd_ofiles, Pid);
372 return;
373 }
374 } else
375 bcopy(filed0.fd_dfiles, ofiles, (filed.fd_lastfile+1) * FPSIZE);
376 for (i = 0; i <= filed.fd_lastfile; i++) {
377 if (ofiles[i] == NULL)
378 continue;
379 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) {
380 dprintf(stderr, "can't read file %d at %p for pid %d\n",
381 i, (void *)ofiles[i], Pid);
382 continue;
383 }
384 if (file.f_type == DTYPE_VNODE)
385 vtrans(file.f_data, i, file.f_flag);
386 else if (file.f_type == DTYPE_SOCKET) {
387 if (checkfile == 0)
388 socktrans(file.f_data, i);
389 }
390#ifdef DTYPE_PIPE
391 else if (file.f_type == DTYPE_PIPE) {
392 if (checkfile == 0)
393 pipetrans(file.f_data, i, file.f_flag);
394 }
395#endif
396#ifdef DTYPE_FIFO
397 else if (file.f_type == DTYPE_FIFO) {
398 if (checkfile == 0)
399 vtrans(file.f_data, i, file.f_flag);
400 }
401#endif
402 else {
403 dprintf(stderr,
404 "unknown file type %d for file %d of pid %d\n",
405 file.f_type, i, Pid);
406 }
407 }
408}
409
410void
411dommap(kp)
412 struct kinfo_proc *kp;
413{
414 vm_map_t map;
415 struct vmspace vmspace;
416 struct vm_map_entry entry;
417 vm_map_entry_t entryp;
418 struct vm_object object;
419 vm_object_t objp;
420 int prot, fflags;
421
422 if (!KVM_READ(kp->ki_vmspace, &vmspace, sizeof(vmspace))) {
423 dprintf(stderr,
424 "can't read vmspace at %p for pid %d\n",
425 (void *)kp->ki_vmspace, Pid);
426 return;
427 }
428 map = &vmspace.vm_map;
429
430 for (entryp = map->header.next;
431 entryp != &kp->ki_vmspace->vm_map.header; entryp = entry.next) {
432 if (!KVM_READ(entryp, &entry, sizeof(entry))) {
433 dprintf(stderr,
434 "can't read vm_map_entry at %p for pid %d\n",
435 (void *)entryp, Pid);
436 return;
437 }
438
439 if (entry.eflags & MAP_ENTRY_IS_SUB_MAP)
440 continue;
441
442 if ((objp = entry.object.vm_object) == NULL)
443 continue;
444
445 for (; objp; objp = object.backing_object) {
446 if (!KVM_READ(objp, &object, sizeof(object))) {
447 dprintf(stderr,
448 "can't read vm_object at %p for pid %d\n",
449 (void *)objp, Pid);
450 return;
451 }
452 }
453
454 prot = entry.protection;
455 fflags = (prot & VM_PROT_READ ? FREAD : 0) |
456 (prot & VM_PROT_WRITE ? FWRITE : 0);
457
458 switch (object.type) {
459 case OBJT_VNODE:
460 vtrans((struct vnode *)object.handle, MMAP, fflags);
461 break;
462 default:
463 break;
464 }
465 }
466}
467
468void
469vtrans(vp, i, flag)
470 struct vnode *vp;
471 int i;
472 int flag;
473{
474 struct vnode vn;
475 struct filestat fst;
476 char rw[3], mode[15], tagstr[12], *tagptr;
477 const char *badtype, *filename;
478
479 filename = badtype = NULL;
480 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) {
481 dprintf(stderr, "can't read vnode at %p for pid %d\n",
482 (void *)vp, Pid);
483 return;
484 }
485 if (!KVM_READ(&vp->v_tag, &tagptr, sizeof tagptr) ||
486 !KVM_READ(tagptr, tagstr, sizeof tagstr)) {
487 dprintf(stderr, "can't read v_tag at %p for pid %d\n",
488 (void *)vp, Pid);
489 return;
490 }
491 tagstr[sizeof(tagstr) - 1] = '\0';
492 if (vn.v_type == VNON)
493 badtype = "none";
494 else if (vn.v_type == VBAD)
495 badtype = "bad";
496 else {
497 if (!strcmp("ufs", tagstr)) {
498 if (!ufs_filestat(&vn, &fst))
499 badtype = "error";
500 } else if (!strcmp("devfs", tagstr)) {
501 if (!devfs_filestat(&vn, &fst))
502 badtype = "error";
503 } else if (!strcmp("nfs", tagstr)) {
504 if (!nfs_filestat(&vn, &fst))
505 badtype = "error";
506 } else if (!strcmp("msdosfs", tagstr)) {
507 if (!msdosfs_filestat(&vn, &fst))
508 badtype = "error";
509 } else if (!strcmp("isofs", tagstr)) {
510 if (!isofs_filestat(&vn, &fst))
511 badtype = "error";
512 } else {
513 static char unknown[32];
514 snprintf(unknown, sizeof unknown, "?(%s)", tagstr);
515 badtype = unknown;
516 }
517 }
518 if (checkfile) {
519 int fsmatch = 0;
520 DEVS *d;
521
522 if (badtype)
523 return;
524 for (d = devs; d != NULL; d = d->next)
525 if (d->fsid == fst.fsid) {
526 fsmatch = 1;
527 if (d->ino == fst.fileid) {
528 filename = d->name;
529 break;
530 }
531 }
532 if (fsmatch == 0 || (filename == NULL && fsflg == 0))
533 return;
534 }
535 PREFIX(i);
536 if (badtype) {
537 (void)printf(" - - %10s -\n", badtype);
538 return;
539 }
540 if (nflg)
541 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid));
542 else
543 (void)printf(" %-8s", getmnton(vn.v_mount));
544 if (nflg)
545 (void)sprintf(mode, "%o", fst.mode);
546 else
547 strmode(fst.mode, mode);
548 (void)printf(" %6ld %10s", fst.fileid, mode);
549 switch (vn.v_type) {
550 case VBLK:
551 case VCHR: {
552 char *name;
553
554 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ?
555 S_IFCHR : S_IFBLK)) == NULL))
556 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev));
557 else
558 printf(" %6s", name);
559 break;
560 }
561 default:
562 printf(" %6lu", fst.size);
563 }
564 rw[0] = '\0';
565 if (flag & FREAD)
566 strcat(rw, "r");
567 if (flag & FWRITE)
568 strcat(rw, "w");
569 printf(" %2s", rw);
570 if (filename && !fsflg)
571 printf(" %s", filename);
572 putchar('\n');
573}
574
575int
576ufs_filestat(vp, fsp)
577 struct vnode *vp;
578 struct filestat *fsp;
579{
580 struct inode inode;
581
582 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) {
583 dprintf(stderr, "can't read inode at %p for pid %d\n",
584 (void *)VTOI(vp), Pid);
585 return 0;
586 }
587 /*
588 * The st_dev from stat(2) is a udev_t. These kernel structures
589 * contain dev_t structures. We need to convert to udev to make
590 * comparisons
591 */
592 fsp->fsid = dev2udev(inode.i_dev);
593 fsp->fileid = (long)inode.i_number;
594 fsp->mode = (mode_t)inode.i_mode;
595 fsp->size = (u_long)inode.i_size;
596#if should_be_but_is_hard
597 /* XXX - need to load i_ump and i_din[12] from kernel memory */
598 if (inode.i_ump->um_fstype == UFS1)
599 fsp->rdev = inode.i_din1->di_rdev;
600 else
601 fsp->rdev = inode.i_din2->di_rdev;
602#else
603 fsp->rdev = 0;
604#endif
605
606 return 1;
607}
608
609int
610devfs_filestat(vp, fsp)
611 struct vnode *vp;
612 struct filestat *fsp;
613{
614 struct devfs_dirent devfs_dirent;
615 struct mount mount;
616 struct vnode vnode;
617
618 if (!KVM_READ(vp->v_data, &devfs_dirent, sizeof (devfs_dirent))) {
619 dprintf(stderr, "can't read devfs_dirent at %p for pid %d\n",
620 (void *)vp->v_data, Pid);
621 return 0;
622 }
623 if (!KVM_READ(vp->v_mount, &mount, sizeof (mount))) {
624 dprintf(stderr, "can't read mount at %p for pid %d\n",
625 (void *)vp->v_mount, Pid);
626 return 0;
627 }
628 if (!KVM_READ(devfs_dirent.de_vnode, &vnode, sizeof (vnode))) {
629 dprintf(stderr, "can't read vnode at %p for pid %d\n",
630 (void *)devfs_dirent.de_vnode, Pid);
631 return 0;
632 }
633 fsp->fsid = (long)mount.mnt_stat.f_fsid.val[0];
634 fsp->fileid = devfs_dirent.de_inode;
635 fsp->mode = (devfs_dirent.de_mode & ~S_IFMT) | S_IFCHR;
636 fsp->size = 0;
637 fsp->rdev = dev2udev(vnode.v_rdev);
638
639 return 1;
640}
641
642int
643nfs_filestat(vp, fsp)
644 struct vnode *vp;
645 struct filestat *fsp;
646{
647 struct nfsnode nfsnode;
648 mode_t mode;
649
650 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) {
651 dprintf(stderr, "can't read nfsnode at %p for pid %d\n",
652 (void *)VTONFS(vp), Pid);
653 return 0;
654 }
655 fsp->fsid = nfsnode.n_vattr.va_fsid;
656 fsp->fileid = nfsnode.n_vattr.va_fileid;
657 fsp->size = nfsnode.n_size;
658 fsp->rdev = nfsnode.n_vattr.va_rdev;
659 mode = (mode_t)nfsnode.n_vattr.va_mode;
660 switch (vp->v_type) {
661 case VREG:
662 mode |= S_IFREG;
663 break;
664 case VDIR:
665 mode |= S_IFDIR;
666 break;
667 case VBLK:
668 mode |= S_IFBLK;
669 break;
670 case VCHR:
671 mode |= S_IFCHR;
672 break;
673 case VLNK:
674 mode |= S_IFLNK;
675 break;
676 case VSOCK:
677 mode |= S_IFSOCK;
678 break;
679 case VFIFO:
680 mode |= S_IFIFO;
681 break;
682 case VNON:
683 case VBAD:
684 return 0;
685 };
686 fsp->mode = mode;
687
688 return 1;
689}
690
691
692char *
693getmnton(m)
694 struct mount *m;
695{
696 static struct mount mount;
697 static struct mtab {
698 struct mtab *next;
699 struct mount *m;
700 char mntonname[MNAMELEN];
701 } *mhead = NULL;
702 struct mtab *mt;
703
704 for (mt = mhead; mt != NULL; mt = mt->next)
705 if (m == mt->m)
706 return (mt->mntonname);
707 if (!KVM_READ(m, &mount, sizeof(struct mount))) {
708 warnx("can't read mount table at %p", (void *)m);
709 return (NULL);
710 }
711 if ((mt = malloc(sizeof (struct mtab))) == NULL)
712 err(1, NULL);
713 mt->m = m;
714 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN);
715 mt->next = mhead;
716 mhead = mt;
717 return (mt->mntonname);
718}
719
720void
721pipetrans(pi, i, flag)
722 struct pipe *pi;
723 int i;
724 int flag;
725{
726 struct pipe pip;
727 char rw[3];
728
729 PREFIX(i);
730
731 /* fill in socket */
732 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) {
733 dprintf(stderr, "can't read pipe at %p\n", (void *)pi);
734 goto bad;
735 }
736
737 printf("* pipe %8lx <-> %8lx", (u_long)pi, (u_long)pip.pipe_peer);
738 printf(" %6d", (int)pip.pipe_buffer.cnt);
739 rw[0] = '\0';
740 if (flag & FREAD)
741 strcat(rw, "r");
742 if (flag & FWRITE)
743 strcat(rw, "w");
744 printf(" %2s", rw);
745 putchar('\n');
746 return;
747
748bad:
749 printf("* error\n");
750}
751
752void
753socktrans(sock, i)
754 struct socket *sock;
755 int i;
756{
757 static const char *stypename[] = {
758 "unused", /* 0 */
759 "stream", /* 1 */
760 "dgram", /* 2 */
761 "raw", /* 3 */
762 "rdm", /* 4 */
763 "seqpak" /* 5 */
764 };
765#define STYPEMAX 5
766 struct socket so;
767 struct protosw proto;
768 struct domain dom;
769 struct inpcb inpcb;
770 struct unpcb unpcb;
771 int len;
772 char dname[32];
773
774 PREFIX(i);
775
776 /* fill in socket */
777 if (!KVM_READ(sock, &so, sizeof(struct socket))) {
778 dprintf(stderr, "can't read sock at %p\n", (void *)sock);
779 goto bad;
780 }
781
782 /* fill in protosw entry */
783 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) {
784 dprintf(stderr, "can't read protosw at %p",
785 (void *)so.so_proto);
786 goto bad;
787 }
788
789 /* fill in domain */
790 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) {
791 dprintf(stderr, "can't read domain at %p\n",
792 (void *)proto.pr_domain);
793 goto bad;
794 }
795
796 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname,
797 sizeof(dname) - 1)) < 0) {
798 dprintf(stderr, "can't read domain name at %p\n",
799 (void *)dom.dom_name);
800 dname[0] = '\0';
801 }
802 else
803 dname[len] = '\0';
804
805 if ((u_short)so.so_type > STYPEMAX)
806 printf("* %s ?%d", dname, so.so_type);
807 else
808 printf("* %s %s", dname, stypename[so.so_type]);
809
810 /*
811 * protocol specific formatting
812 *
813 * Try to find interesting things to print. For tcp, the interesting
814 * thing is the address of the tcpcb, for udp and others, just the
815 * inpcb (socket pcb). For unix domain, its the address of the socket
816 * pcb and the address of the connected pcb (if connected). Otherwise
817 * just print the protocol number and address of the socket itself.
818 * The idea is not to duplicate netstat, but to make available enough
819 * information for further analysis.
820 */
821 switch(dom.dom_family) {
822 case AF_INET:
823 case AF_INET6:
824 getinetproto(proto.pr_protocol);
825 if (proto.pr_protocol == IPPROTO_TCP ) {
826 if (so.so_pcb) {
827 if (kvm_read(kd, (u_long)so.so_pcb,
828 (char *)&inpcb, sizeof(struct inpcb))
829 != sizeof(struct inpcb)) {
830 dprintf(stderr,
831 "can't read inpcb at %p\n",
832 (void *)so.so_pcb);
833 goto bad;
834 }
835 printf(" %lx", (u_long)inpcb.inp_ppcb);
836 }
837 }
838 else if (so.so_pcb)
839 printf(" %lx", (u_long)so.so_pcb);
840 break;
841 case AF_UNIX:
842 /* print address of pcb and connected pcb */
843 if (so.so_pcb) {
844 printf(" %lx", (u_long)so.so_pcb);
845 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb,
846 sizeof(struct unpcb)) != sizeof(struct unpcb)){
847 dprintf(stderr, "can't read unpcb at %p\n",
848 (void *)so.so_pcb);
849 goto bad;
850 }
851 if (unpcb.unp_conn) {
852 char shoconn[4], *cp;
853
854 cp = shoconn;
855 if (!(so.so_rcv.sb_state & SBS_CANTRCVMORE))
856 *cp++ = '<';
857 *cp++ = '-';
858 if (!(so.so_snd.sb_state & SBS_CANTSENDMORE))
859 *cp++ = '>';
860 *cp = '\0';
861 printf(" %s %lx", shoconn,
862 (u_long)unpcb.unp_conn);
863 }
864 }
865 break;
866 default:
867 /* print protocol number and socket address */
868 printf(" %d %lx", proto.pr_protocol, (u_long)sock);
869 }
870 printf("\n");
871 return;
872bad:
873 printf("* error\n");
874}
875
876
877/*
878 * Read the cdev structure in the kernel (as pointed to by a dev_t)
879 * in order to work out the associated udev_t
880 */
881udev_t
882dev2udev(dev)
883 struct cdev *dev;
884{
885 struct cdev si;
886
887 if (KVM_READ(dev, &si, sizeof si)) {
888 return si.si_udev;
889 } else {
890 dprintf(stderr, "can't convert dev_t %x to a udev_t\n", dev);
891 return -1;
892 }
893}
894
895/*
896 * getinetproto --
897 * print name of protocol number
898 */
899void
900getinetproto(number)
901 int number;
902{
903 static int isopen;
904 struct protoent *pe;
905
906 if (!isopen)
907 setprotoent(++isopen);
908 if ((pe = getprotobynumber(number)) != NULL)
909 printf(" %s", pe->p_name);
910 else
911 printf(" %d", number);
912}
913
914int
915getfname(filename)
916 const char *filename;
917{
918 struct stat statbuf;
919 DEVS *cur;
920
921 if (stat(filename, &statbuf)) {
922 warn("%s", filename);
923 return(0);
924 }
925 if ((cur = malloc(sizeof(DEVS))) == NULL)
926 err(1, NULL);
927 cur->next = devs;
928 devs = cur;
929
930 cur->ino = statbuf.st_ino;
931 cur->fsid = statbuf.st_dev;
932 cur->name = filename;
933 return(1);
934}
935
936void
937usage()
938{
939 (void)fprintf(stderr,
940 "usage: fstat [-fmnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n");
941 exit(1);
942}