Annotation of src/usr.bin/fstat/fstat.c, Revision 1.34
1.34 ! deraadt 1: /* $OpenBSD: fstat.c,v 1.33 2001/11/26 01:37:16 itojun Exp $ */
1.2 niklas 2:
1.1 deraadt 3: /*-
4: * Copyright (c) 1988, 1993
5: * The Regents of the University of California. All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. All advertising materials mentioning features or use of this software
16: * must display the following acknowledgement:
17: * This product includes software developed by the University of
18: * California, Berkeley and its contributors.
19: * 4. Neither the name of the University nor the names of its contributors
20: * may be used to endorse or promote products derived from this software
21: * without specific prior written permission.
22: *
23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33: * SUCH DAMAGE.
34: */
35:
36: #ifndef lint
37: static char copyright[] =
38: "@(#) Copyright (c) 1988, 1993\n\
39: The Regents of the University of California. All rights reserved.\n";
40: #endif /* not lint */
41:
42: #ifndef lint
43: /*static char sccsid[] = "from: @(#)fstat.c 8.1 (Berkeley) 6/6/93";*/
1.34 ! deraadt 44: static char *rcsid = "$OpenBSD: fstat.c,v 1.33 2001/11/26 01:37:16 itojun Exp $";
1.1 deraadt 45: #endif /* not lint */
46:
47: #include <sys/param.h>
48: #include <sys/time.h>
49: #include <sys/proc.h>
50: #include <sys/user.h>
51: #include <sys/stat.h>
52: #include <sys/vnode.h>
53: #include <sys/socket.h>
54: #include <sys/socketvar.h>
55: #include <sys/domain.h>
56: #include <sys/protosw.h>
57: #include <sys/unpcb.h>
58: #include <sys/sysctl.h>
59: #include <sys/filedesc.h>
1.23 deraadt 60: #include <sys/mount.h>
1.1 deraadt 61: #define _KERNEL
62: #include <sys/file.h>
63: #include <ufs/ufs/quota.h>
64: #include <ufs/ufs/inode.h>
1.23 deraadt 65: #include <miscfs/nullfs/null.h>
1.1 deraadt 66: #undef _KERNEL
67: #define NFS
1.2 niklas 68: #include <nfs/nfsproto.h>
1.1 deraadt 69: #include <nfs/rpcv2.h>
70: #include <nfs/nfs.h>
71: #include <nfs/nfsnode.h>
72: #undef NFS
73:
1.29 deraadt 74: #include <xfs/xfs_config.h>
1.18 art 75: #include <xfs/xfs_node.h>
76:
1.1 deraadt 77: #include <net/route.h>
78: #include <netinet/in.h>
79: #include <netinet/in_systm.h>
80: #include <netinet/ip.h>
81: #include <netinet/in_pcb.h>
82:
1.26 itojun 83: #ifdef INET6
84: #include <netinet/ip6.h>
85: #include <netinet6/ip6_var.h>
86: #endif
87:
88: #include <netdb.h>
1.5 deraadt 89: #include <arpa/inet.h>
90:
1.22 art 91: #include <sys/pipe.h>
92:
1.1 deraadt 93: #include <ctype.h>
94: #include <errno.h>
95: #include <kvm.h>
1.2 niklas 96: #include <limits.h>
1.1 deraadt 97: #include <nlist.h>
98: #include <paths.h>
99: #include <pwd.h>
100: #include <stdio.h>
101: #include <stdlib.h>
102: #include <string.h>
1.11 millert 103: #include <unistd.h>
1.24 deraadt 104: #include <netdb.h>
1.17 mickey 105: #include <err.h>
1.14 deraadt 106: #include "fstat.h"
1.1 deraadt 107:
108: #define TEXT -1
109: #define CDIR -2
110: #define RDIR -3
111: #define TRACE -4
112:
113: typedef struct devs {
114: struct devs *next;
115: long fsid;
116: ino_t ino;
117: char *name;
118: } DEVS;
119: DEVS *devs;
120:
121: int fsflg, /* show files on same filesystem as file(s) argument */
122: pflg, /* show files open by a particular pid */
123: uflg; /* show files open by a particular (effective) user */
124: int checkfile; /* true if restricting to particular files or filesystems */
125: int nflg; /* (numerical) display f.s. and rdev as dev_t */
1.28 hugh 126: int oflg; /* display file offset */
1.1 deraadt 127: int vflg; /* display errors in locating kernel data objects etc... */
128:
129: struct file **ofiles; /* buffer of pointers to file structures */
130: int maxfiles;
131: #define ALLOC_OFILES(d) \
132: if ((d) > maxfiles) { \
133: free(ofiles); \
134: ofiles = malloc((d) * sizeof(struct file *)); \
1.17 mickey 135: if (ofiles == NULL) \
136: err(1, "malloc"); \
1.1 deraadt 137: maxfiles = (d); \
138: }
139:
140: /*
1.34 ! deraadt 141: * a kvm_read that returns true if everything is read
1.1 deraadt 142: */
143: #define KVM_READ(kaddr, paddr, len) \
1.11 millert 144: (kvm_read(kd, (u_long)(kaddr), (void *)(paddr), (len)) == (len))
1.1 deraadt 145:
146: kvm_t *kd;
147:
1.11 millert 148: int ufs_filestat __P((struct vnode *, struct filestat *));
149: int ext2fs_filestat __P((struct vnode *, struct filestat *));
1.14 deraadt 150: int isofs_filestat __P((struct vnode *, struct filestat *));
151: int msdos_filestat __P((struct vnode *, struct filestat *));
1.11 millert 152: int nfs_filestat __P((struct vnode *, struct filestat *));
1.31 deraadt 153: int xfs_filestat __P((struct vnode *, struct filestat *));
154: int null_filestat __P((struct vnode *, struct filestat *));
1.11 millert 155: void dofiles __P((struct kinfo_proc *));
156: void getinetproto __P((int));
157: void socktrans __P((struct socket *, int));
158: void usage __P((void));
1.28 hugh 159: void vtrans __P((struct vnode *, int, int, off_t));
1.11 millert 160: int getfname __P((char *));
1.22 art 161: void pipetrans __P((struct pipe *, int));
1.1 deraadt 162:
1.11 millert 163: int
1.1 deraadt 164: main(argc, argv)
165: int argc;
166: char **argv;
167: {
168: extern char *optarg;
169: extern int optind;
1.32 mpech 170: struct passwd *passwd;
1.1 deraadt 171: struct kinfo_proc *p, *plast;
172: int arg, ch, what;
173: char *memf, *nlistf;
1.2 niklas 174: char buf[_POSIX2_LINE_MAX];
1.1 deraadt 175: int cnt;
176:
177: arg = 0;
178: what = KERN_PROC_ALL;
179: nlistf = memf = NULL;
1.28 hugh 180: oflg = 0;
181: while ((ch = getopt(argc, argv, "fnop:u:vN:M:")) != -1)
1.1 deraadt 182: switch((char)ch) {
183: case 'f':
184: fsflg = 1;
185: break;
186: case 'M':
187: memf = optarg;
188: break;
189: case 'N':
190: nlistf = optarg;
191: break;
192: case 'n':
193: nflg = 1;
194: break;
1.28 hugh 195: case 'o':
196: oflg = 1;
197: break;
1.1 deraadt 198: case 'p':
199: if (pflg++)
200: usage();
201: if (!isdigit(*optarg)) {
1.17 mickey 202: warnx( "-p requires a process id\n");
1.1 deraadt 203: usage();
204: }
205: what = KERN_PROC_PID;
206: arg = atoi(optarg);
207: break;
208: case 'u':
209: if (uflg++)
210: usage();
1.17 mickey 211: if (!(passwd = getpwnam(optarg)))
1.21 deraadt 212: errx(1, "%s: unknown uid", optarg);
1.1 deraadt 213: what = KERN_PROC_UID;
214: arg = passwd->pw_uid;
215: break;
216: case 'v':
217: vflg = 1;
218: break;
219: case '?':
220: default:
221: usage();
222: }
223:
224: if (*(argv += optind)) {
225: for (; *argv; ++argv) {
226: if (getfname(*argv))
227: checkfile = 1;
228: }
1.30 pvalchev 229: if (!checkfile) /* file(s) specified, but none accessible */
1.1 deraadt 230: exit(1);
231: }
232:
233: ALLOC_OFILES(256); /* reserve space for file pointers */
234:
1.34 ! deraadt 235: if (fsflg && !checkfile) {
1.1 deraadt 236: /* -f with no files means use wd */
237: if (getfname(".") == 0)
238: exit(1);
239: checkfile = 1;
240: }
241:
242: /*
243: * Discard setgid privileges if not the running kernel so that bad
244: * guys can't print interesting stuff from kernel memory.
245: */
1.7 tholo 246: if (nlistf != NULL || memf != NULL) {
247: setegid(getgid());
1.1 deraadt 248: setgid(getgid());
1.7 tholo 249: }
1.1 deraadt 250:
1.17 mickey 251: if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL)
1.21 deraadt 252: errx(1, "%s", buf);
1.16 deraadt 253:
254: setegid(getgid());
255: setgid(getgid());
256:
1.17 mickey 257: if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL)
1.21 deraadt 258: errx(1, "%s", kvm_geterr(kd));
1.1 deraadt 259: if (nflg)
260: printf("%s",
1.28 hugh 261: "USER CMD PID FD DEV INUM MODE R/W DV|SZ");
1.1 deraadt 262: else
263: printf("%s",
1.28 hugh 264: "USER CMD PID FD MOUNT INUM MODE R/W DV|SZ");
265: if (oflg)
266: printf("%s", ":OFFSET ");
1.1 deraadt 267: if (checkfile && fsflg == 0)
268: printf(" NAME\n");
269: else
270: putchar('\n');
271:
272: for (plast = &p[cnt]; p < plast; ++p) {
273: if (p->kp_proc.p_stat == SZOMB)
274: continue;
275: dofiles(p);
276: }
277: exit(0);
278: }
279:
280: char *Uname, *Comm;
1.14 deraadt 281: pid_t Pid;
1.1 deraadt 282:
1.34 ! deraadt 283: #define PREFIX(i) do { \
! 284: printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \
1.1 deraadt 285: switch(i) { \
286: case TEXT: \
287: printf(" text"); \
288: break; \
289: case CDIR: \
290: printf(" wd"); \
291: break; \
292: case RDIR: \
293: printf(" root"); \
294: break; \
295: case TRACE: \
296: printf(" tr"); \
297: break; \
298: default: \
299: printf(" %4d", i); \
300: break; \
1.34 ! deraadt 301: } \
! 302: } while (0)
1.1 deraadt 303:
304: /*
305: * print open files attributed to this process
306: */
307: void
308: dofiles(kp)
309: struct kinfo_proc *kp;
310: {
1.11 millert 311: int i;
1.1 deraadt 312: struct file file;
313: struct filedesc0 filed0;
314: #define filed filed0.fd_fd
315: struct proc *p = &kp->kp_proc;
316: struct eproc *ep = &kp->kp_eproc;
317:
318: extern char *user_from_uid();
319:
320: Uname = user_from_uid(ep->e_ucred.cr_uid, 0);
321: Pid = p->p_pid;
322: Comm = p->p_comm;
323:
324: if (p->p_fd == NULL)
325: return;
326: if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) {
1.17 mickey 327: dprintf("can't read filedesc at %p for pid %d", p->p_fd, Pid);
1.1 deraadt 328: return;
329: }
330: if (filed.fd_nfiles < 0 || filed.fd_lastfile >= filed.fd_nfiles ||
331: filed.fd_freefile > filed.fd_lastfile + 1) {
1.17 mickey 332: dprintf("filedesc corrupted at %p for pid %d", p->p_fd, Pid);
1.1 deraadt 333: return;
334: }
335: /*
336: * root directory vnode, if one
337: */
338: if (filed.fd_rdir)
1.28 hugh 339: vtrans(filed.fd_rdir, RDIR, FREAD, 0);
1.1 deraadt 340: /*
341: * current working directory vnode
342: */
1.28 hugh 343: vtrans(filed.fd_cdir, CDIR, FREAD, 0);
1.1 deraadt 344: /*
345: * ktrace vnode, if one
346: */
347: if (p->p_tracep)
1.28 hugh 348: vtrans(p->p_tracep, TRACE, FREAD|FWRITE, 0);
1.1 deraadt 349: /*
350: * open files
351: */
352: #define FPSIZE (sizeof (struct file *))
353: ALLOC_OFILES(filed.fd_lastfile+1);
354: if (filed.fd_nfiles > NDFILE) {
355: if (!KVM_READ(filed.fd_ofiles, ofiles,
356: (filed.fd_lastfile+1) * FPSIZE)) {
1.17 mickey 357: dprintf("can't read file structures at %p for pid %d",
1.1 deraadt 358: filed.fd_ofiles, Pid);
359: return;
360: }
361: } else
362: bcopy(filed0.fd_dfiles, ofiles, (filed.fd_lastfile+1) * FPSIZE);
363: for (i = 0; i <= filed.fd_lastfile; i++) {
364: if (ofiles[i] == NULL)
365: continue;
366: if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) {
1.17 mickey 367: dprintf("can't read file %d at %p for pid %d",
1.1 deraadt 368: i, ofiles[i], Pid);
369: continue;
370: }
371: if (file.f_type == DTYPE_VNODE)
1.28 hugh 372: vtrans((struct vnode *)file.f_data, i, file.f_flag, file.f_offset);
1.1 deraadt 373: else if (file.f_type == DTYPE_SOCKET) {
374: if (checkfile == 0)
375: socktrans((struct socket *)file.f_data, i);
1.22 art 376: } else if (file.f_type == DTYPE_PIPE) {
377: if (checkfile == 0)
378: pipetrans((struct pipe *)file.f_data, i);
379: } else {
1.17 mickey 380: dprintf("unknown file type %d for file %d of pid %d",
1.1 deraadt 381: file.f_type, i, Pid);
382: }
383: }
384: }
385:
386: void
1.28 hugh 387: vtrans(vp, i, flag, offset)
1.1 deraadt 388: struct vnode *vp;
389: int i;
390: int flag;
1.28 hugh 391: off_t offset;
1.1 deraadt 392: {
393: struct vnode vn;
394: struct filestat fst;
1.12 deraadt 395: char rw[3], mode[17];
1.1 deraadt 396: char *badtype = NULL, *filename, *getmnton();
397:
398: filename = badtype = NULL;
399: if (!KVM_READ(vp, &vn, sizeof (struct vnode))) {
1.17 mickey 400: dprintf("can't read vnode at %p for pid %d", vp, Pid);
1.1 deraadt 401: return;
402: }
403: if (vn.v_type == VNON || vn.v_tag == VT_NON)
404: badtype = "none";
405: else if (vn.v_type == VBAD)
406: badtype = "bad";
407: else
408: switch (vn.v_tag) {
409: case VT_UFS:
410: case VT_MFS:
411: if (!ufs_filestat(&vn, &fst))
412: badtype = "error";
413: break;
414: case VT_NFS:
415: if (!nfs_filestat(&vn, &fst))
416: badtype = "error";
417: break;
1.9 downsj 418: case VT_EXT2FS:
419: if (!ext2fs_filestat(&vn, &fst))
420: badtype = "error";
421: break;
1.14 deraadt 422: case VT_ISOFS:
423: if (!isofs_filestat(&vn, &fst))
424: badtype = "error";
425: break;
426: case VT_MSDOSFS:
427: if (!msdos_filestat(&vn, &fst))
428: badtype = "error";
429: break;
1.18 art 430: case VT_XFS:
431: if (!xfs_filestat(&vn, &fst))
432: badtype = "error";
433: break;
1.23 deraadt 434: case VT_NULL:
435: if (!null_filestat(&vn, &fst))
436: badtype = "error";
1.34 ! deraadt 437: break;
1.1 deraadt 438: default: {
1.12 deraadt 439: static char unknown[30];
1.34 ! deraadt 440: snprintf(badtype = unknown, sizeof unknown,
! 441: "?(%x)", vn.v_tag);
1.10 deraadt 442: break;
1.1 deraadt 443: }
444: }
445: if (checkfile) {
446: int fsmatch = 0;
1.32 mpech 447: DEVS *d;
1.1 deraadt 448:
449: if (badtype)
450: return;
451: for (d = devs; d != NULL; d = d->next)
452: if (d->fsid == fst.fsid) {
453: fsmatch = 1;
454: if (d->ino == fst.fileid) {
455: filename = d->name;
456: break;
457: }
458: }
459: if (fsmatch == 0 || (filename == NULL && fsflg == 0))
460: return;
461: }
462: PREFIX(i);
463: if (badtype) {
464: (void)printf(" - - %10s -\n", badtype);
465: return;
466: }
467: if (nflg)
1.31 deraadt 468: (void)printf(" %2ld,%-2ld", (long)major(fst.fsid),
469: (long)minor(fst.fsid));
1.1 deraadt 470: else
471: (void)printf(" %-8s", getmnton(vn.v_mount));
472: if (nflg)
1.34 ! deraadt 473: (void)snprintf(mode, sizeof mode, "%o", fst.mode);
1.1 deraadt 474: else
475: strmode(fst.mode, mode);
1.28 hugh 476: (void)printf(" %6ld %11s", fst.fileid, mode);
477: rw[0] = '\0';
478: if (flag & FREAD)
1.34 ! deraadt 479: strlcat(rw, "r", sizeof rw);
1.28 hugh 480: if (flag & FWRITE)
1.34 ! deraadt 481: strlcat(rw, "w", sizeof rw);
1.28 hugh 482: printf(" %2s", rw);
1.1 deraadt 483: switch (vn.v_type) {
484: case VBLK:
485: case VCHR: {
486: char *name;
487:
1.34 ! deraadt 488: if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ?
1.1 deraadt 489: S_IFCHR : S_IFBLK)) == NULL))
1.28 hugh 490: printf(" %2d,%-3d", major(fst.rdev), minor(fst.rdev));
1.1 deraadt 491: else
1.28 hugh 492: printf(" %7s", name);
493: if (oflg)
494: printf(" ");
1.1 deraadt 495: break;
496: }
497: default:
1.31 deraadt 498: printf(" %8lld", (long long)fst.size);
1.28 hugh 499: if (oflg)
1.31 deraadt 500: printf(":%-8lld", (long long)offset);
1.1 deraadt 501: }
502: if (filename && !fsflg)
1.28 hugh 503: printf(" %s", filename);
1.1 deraadt 504: putchar('\n');
505: }
506:
507: int
508: ufs_filestat(vp, fsp)
509: struct vnode *vp;
510: struct filestat *fsp;
511: {
512: struct inode inode;
513:
514: if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) {
1.17 mickey 515: dprintf("can't read inode at %p for pid %d", VTOI(vp), Pid);
1.1 deraadt 516: return 0;
517: }
518: fsp->fsid = inode.i_dev & 0xffff;
519: fsp->fileid = (long)inode.i_number;
1.11 millert 520: fsp->mode = inode.i_ffs_mode;
521: fsp->size = inode.i_ffs_size;
1.9 downsj 522: fsp->rdev = inode.i_ffs_rdev;
523:
524: return 1;
525: }
526:
527: int
528: ext2fs_filestat(vp, fsp)
529: struct vnode *vp;
530: struct filestat *fsp;
531: {
532: struct inode inode;
533:
534: if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) {
1.17 mickey 535: dprintf("can't read inode at %p for pid %d", VTOI(vp), Pid);
1.9 downsj 536: return 0;
537: }
538: fsp->fsid = inode.i_dev & 0xffff;
539: fsp->fileid = (long)inode.i_number;
1.11 millert 540: fsp->mode = inode.i_e2fs_mode;
541: fsp->size = inode.i_e2fs_size;
1.9 downsj 542: fsp->rdev = 0; /* XXX */
1.14 deraadt 543:
544: return 1;
545: }
546:
547: int
548: msdos_filestat(vp, fsp)
549: struct vnode *vp;
550: struct filestat *fsp;
551: {
552: #if 0
553: struct inode inode;
554:
555: if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) {
1.17 mickey 556: dprintf("can't read inode at %p for pid %d", VTOI(vp), Pid);
1.14 deraadt 557: return 0;
558: }
559: fsp->fsid = inode.i_dev & 0xffff;
560: fsp->fileid = (long)inode.i_number;
561: fsp->mode = inode.i_e2fs_mode;
562: fsp->size = inode.i_e2fs_size;
563: fsp->rdev = 0; /* XXX */
564: #endif
1.1 deraadt 565:
566: return 1;
567: }
568:
569: int
570: nfs_filestat(vp, fsp)
571: struct vnode *vp;
572: struct filestat *fsp;
573: {
574: struct nfsnode nfsnode;
1.32 mpech 575: mode_t mode;
1.1 deraadt 576:
577: if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) {
1.17 mickey 578: dprintf("can't read nfsnode at %p for pid %d", VTONFS(vp), Pid);
1.1 deraadt 579: return 0;
580: }
581: fsp->fsid = nfsnode.n_vattr.va_fsid;
582: fsp->fileid = nfsnode.n_vattr.va_fileid;
583: fsp->size = nfsnode.n_size;
584: fsp->rdev = nfsnode.n_vattr.va_rdev;
585: mode = (mode_t)nfsnode.n_vattr.va_mode;
586: switch (vp->v_type) {
587: case VREG:
588: mode |= S_IFREG;
589: break;
590: case VDIR:
591: mode |= S_IFDIR;
592: break;
593: case VBLK:
594: mode |= S_IFBLK;
595: break;
596: case VCHR:
597: mode |= S_IFCHR;
598: break;
599: case VLNK:
600: mode |= S_IFLNK;
601: break;
602: case VSOCK:
603: mode |= S_IFSOCK;
604: break;
605: case VFIFO:
606: mode |= S_IFIFO;
607: break;
1.17 mickey 608: default:
609: break;
1.34 ! deraadt 610: }
1.1 deraadt 611: fsp->mode = mode;
612:
613: return 1;
614: }
615:
1.18 art 616: int
617: xfs_filestat(vp, fsp)
618: struct vnode *vp;
619: struct filestat *fsp;
620: {
621: struct xfs_node xfs_node;
622:
623: if (!KVM_READ(VNODE_TO_XNODE(vp), &xfs_node, sizeof (xfs_node))) {
624: dprintf("can't read xfs_node at %p for pid %d", VTOI(vp), Pid);
625: return 0;
626: }
627: fsp->fsid = xfs_node.attr.va_fsid;
628: fsp->fileid = (long)xfs_node.attr.va_fileid;
629: fsp->mode = xfs_node.attr.va_mode;
630: fsp->size = xfs_node.attr.va_size;
631: fsp->rdev = xfs_node.attr.va_rdev;
1.23 deraadt 632:
633: return 1;
634: }
635:
636: int
637: null_filestat(vp, fsp)
638: struct vnode *vp;
639: struct filestat *fsp;
640: {
641: struct null_node node;
642: struct filestat fst;
643: struct vnode vn;
644: int fail = 1;
645:
646: memset(&fst, 0, sizeof fst);
647:
648: if (!KVM_READ(VTONULL(vp), &node, sizeof (node))) {
649: dprintf("can't read node at %p for pid %d", VTONULL(vp), Pid);
650: return 0;
651: }
652:
653: /*
654: * Attempt to find information that might be useful.
655: */
656: if (node.null_lowervp) {
657: if (!KVM_READ(node.null_lowervp, &vn, sizeof (vn))) {
658: dprintf("can't read vnode at %p for pid %d",
659: node.null_lowervp, Pid);
660: return 0;
661: }
662:
663: fail = 0;
664: if (vn.v_type == VNON || vn.v_tag == VT_NON)
665: fail = 1;
666: else if (vn.v_type == VBAD)
667: fail = 1;
668: else
669: switch (vn.v_tag) {
670: case VT_UFS:
671: case VT_MFS:
672: if (!ufs_filestat(&vn, &fst))
673: fail = 1;
674: break;
675: case VT_NFS:
676: if (!nfs_filestat(&vn, &fst))
677: fail = 1;
678: break;
679: case VT_EXT2FS:
680: if (!ext2fs_filestat(&vn, &fst))
681: fail = 1;
682: break;
683: case VT_ISOFS:
684: if (!isofs_filestat(&vn, &fst))
685: fail = 1;
686: break;
687: case VT_MSDOSFS:
688: if (!msdos_filestat(&vn, &fst))
689: fail = 1;
690: break;
691: case VT_XFS:
692: if (!xfs_filestat(&vn, &fst))
693: fail = 1;
694: break;
695: default:
696: break;
697: }
698: }
699:
700: fsp->fsid = (long)node.null_vnode;
701: if (fail)
702: fsp->fileid = (long)node.null_lowervp;
703: else
1.34 ! deraadt 704: fsp->fileid = fst.fileid;
1.23 deraadt 705: fsp->mode = fst.mode;
706: fsp->size = fst.mode;
707: fsp->rdev = fst.mode;
1.18 art 708:
709: return 1;
710: }
1.1 deraadt 711:
712: char *
713: getmnton(m)
714: struct mount *m;
715: {
716: static struct mount mount;
717: static struct mtab {
718: struct mtab *next;
719: struct mount *m;
720: char mntonname[MNAMELEN];
721: } *mhead = NULL;
1.32 mpech 722: struct mtab *mt;
1.1 deraadt 723:
724: for (mt = mhead; mt != NULL; mt = mt->next)
725: if (m == mt->m)
726: return (mt->mntonname);
727: if (!KVM_READ(m, &mount, sizeof(struct mount))) {
1.17 mickey 728: warn("can't read mount table at %p", m);
1.1 deraadt 729: return (NULL);
730: }
1.17 mickey 731: if ((mt = malloc(sizeof (struct mtab))) == NULL)
732: err(1, "malloc");
1.1 deraadt 733: mt->m = m;
734: bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN);
735: mt->next = mhead;
736: mhead = mt;
737: return (mt->mntonname);
1.22 art 738: }
739:
740: void
741: pipetrans(pipe, i)
742: struct pipe *pipe;
743: int i;
744: {
745: struct pipe pi;
746: void *maxaddr;
747:
748: PREFIX(i);
749:
750: printf(" ");
751:
752: /* fill in socket */
753: if (!KVM_READ(pipe, &pi, sizeof(struct pipe))) {
754: dprintf("can't read pipe at %p", pipe);
755: goto bad;
756: }
757:
758: /*
759: * We don't have enough space to fit both peer and own address, so
760: * we select the higher address so both ends of the pipe have the
761: * same visible addr. (it's the higher address because when the other
762: * end closes, it becomes 0)
763: */
764: maxaddr = MAX(pipe, pi.pipe_peer);
765:
766: printf("pipe %p state: %s%s%s", maxaddr,
1.34 ! deraadt 767: (pi.pipe_state & PIPE_WANTR) ? "R" : "",
! 768: (pi.pipe_state & PIPE_WANTW) ? "W" : "",
! 769: (pi.pipe_state & PIPE_EOF) ? "E" : "");
! 770:
1.22 art 771: printf("\n");
772: return;
773: bad:
774: printf("* error\n");
1.1 deraadt 775: }
776:
1.26 itojun 777: #ifdef INET6
778: const char *
779: inet6_addrstr(p)
780: struct in6_addr *p;
781: {
782: struct sockaddr_in6 sin6;
783: static char hbuf[NI_MAXHOST];
784: #ifdef NI_WITHSCOPEID
785: const int niflags = NI_NUMERICHOST | NI_WITHSCOPEID;
786: #else
787: const int niflags = NI_NUMERICHOST
788: #endif
789:
790: memset(&sin6, 0, sizeof(sin6));
791: sin6.sin6_family = AF_INET6;
792: sin6.sin6_len = sizeof(struct sockaddr_in6);
793: sin6.sin6_addr = *p;
794: if (IN6_IS_ADDR_LINKLOCAL(p) &&
795: *(u_int16_t *)&sin6.sin6_addr.s6_addr[2] != 0) {
796: sin6.sin6_scope_id =
797: ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
798: sin6.sin6_addr.s6_addr[2] = sin6.sin6_addr.s6_addr[3] = 0;
799: }
800:
801: if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
802: hbuf, sizeof(hbuf), NULL, 0, niflags))
803: return "invalid";
804:
805: return hbuf;
806: }
807: #endif
808:
1.1 deraadt 809: void
810: socktrans(sock, i)
811: struct socket *sock;
812: int i;
813: {
814: static char *stypename[] = {
815: "unused", /* 0 */
816: "stream", /* 1 */
817: "dgram", /* 2 */
818: "raw", /* 3 */
819: "rdm", /* 4 */
820: "seqpak" /* 5 */
821: };
822: #define STYPEMAX 5
823: struct socket so;
824: struct protosw proto;
825: struct domain dom;
826: struct inpcb inpcb;
827: struct unpcb unpcb;
828: int len;
1.4 deraadt 829: char dname[32];
1.26 itojun 830: #ifdef INET6
831: char xaddrbuf[NI_MAXHOST + 2];
832: #endif
1.1 deraadt 833:
834: PREFIX(i);
835:
836: /* fill in socket */
837: if (!KVM_READ(sock, &so, sizeof(struct socket))) {
1.17 mickey 838: dprintf("can't read sock at %p", sock);
1.1 deraadt 839: goto bad;
840: }
841:
842: /* fill in protosw entry */
843: if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) {
1.17 mickey 844: dprintf("can't read protosw at %p", so.so_proto);
1.1 deraadt 845: goto bad;
846: }
847:
848: /* fill in domain */
849: if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) {
1.17 mickey 850: dprintf("can't read domain at %p", proto.pr_domain);
1.1 deraadt 851: goto bad;
852: }
853:
854: if ((len = kvm_read(kd, (u_long)dom.dom_name, dname,
1.15 deraadt 855: sizeof(dname) - 1)) != sizeof(dname) -1) {
1.17 mickey 856: dprintf("can't read domain name at %p", dom.dom_name);
1.1 deraadt 857: dname[0] = '\0';
858: }
859: else
860: dname[len] = '\0';
861:
862: if ((u_short)so.so_type > STYPEMAX)
863: printf("* %s ?%d", dname, so.so_type);
864: else
865: printf("* %s %s", dname, stypename[so.so_type]);
866:
1.34 ! deraadt 867: /*
1.1 deraadt 868: * protocol specific formatting
869: *
870: * Try to find interesting things to print. For tcp, the interesting
871: * thing is the address of the tcpcb, for udp and others, just the
872: * inpcb (socket pcb). For unix domain, its the address of the socket
873: * pcb and the address of the connected pcb (if connected). Otherwise
874: * just print the protocol number and address of the socket itself.
875: * The idea is not to duplicate netstat, but to make available enough
876: * information for further analysis.
877: */
878: switch(dom.dom_family) {
879: case AF_INET:
880: getinetproto(proto.pr_protocol);
1.5 deraadt 881: if (proto.pr_protocol == IPPROTO_TCP) {
882: if (so.so_pcb == NULL)
883: break;
884: if (kvm_read(kd, (u_long)so.so_pcb, (char *)&inpcb,
885: sizeof(struct inpcb)) != sizeof(struct inpcb)) {
1.17 mickey 886: dprintf("can't read inpcb at %p", so.so_pcb);
1.5 deraadt 887: goto bad;
888: }
1.11 millert 889: printf(" %p", inpcb.inp_ppcb);
1.5 deraadt 890: printf(" %s:%d",
891: inpcb.inp_laddr.s_addr == INADDR_ANY ? "*" :
892: inet_ntoa(inpcb.inp_laddr),
893: ntohs(inpcb.inp_lport));
1.17 mickey 894: if (inpcb.inp_fport) {
1.13 deraadt 895: if (so.so_state & SS_CONNECTOUT)
896: printf(" --> ");
897: else
898: printf(" <-- ");
899: printf("%s:%d",
1.5 deraadt 900: inpcb.inp_faddr.s_addr == INADDR_ANY ? "*" :
901: inet_ntoa(inpcb.inp_faddr),
902: ntohs(inpcb.inp_fport));
1.17 mickey 903: }
1.5 deraadt 904: } else if (proto.pr_protocol == IPPROTO_UDP) {
905: if (so.so_pcb == NULL)
906: break;
907: if (kvm_read(kd, (u_long)so.so_pcb, (char *)&inpcb,
908: sizeof(struct inpcb)) != sizeof(struct inpcb)) {
1.17 mickey 909: dprintf("can't read inpcb at %p", so.so_pcb);
1.5 deraadt 910: goto bad;
1.1 deraadt 911: }
1.5 deraadt 912: printf(" %s:%d",
913: inpcb.inp_laddr.s_addr == INADDR_ANY ? "*" :
914: inet_ntoa(inpcb.inp_laddr),
915: ntohs(inpcb.inp_lport));
916: if (inpcb.inp_fport)
1.6 deraadt 917: printf(" <-> %s:%d",
1.5 deraadt 918: inpcb.inp_faddr.s_addr == INADDR_ANY ? "*" :
919: inet_ntoa(inpcb.inp_faddr),
920: ntohs(inpcb.inp_fport));
921: } else if (so.so_pcb)
1.11 millert 922: printf(" %p", so.so_pcb);
1.1 deraadt 923: break;
1.26 itojun 924: #ifdef INET6
925: case AF_INET6:
926: getinetproto(proto.pr_protocol);
927: if (proto.pr_protocol == IPPROTO_TCP) {
928: if (so.so_pcb == NULL)
929: break;
930: if (kvm_read(kd, (u_long)so.so_pcb, (char *)&inpcb,
931: sizeof(struct inpcb)) != sizeof(struct inpcb)) {
932: dprintf("can't read inpcb at %p", so.so_pcb);
933: goto bad;
934: }
935: printf(" %p", inpcb.inp_ppcb);
936: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
937: inet6_addrstr(&inpcb.inp_laddr6));
938: printf(" %s:%d",
939: IN6_IS_ADDR_UNSPECIFIED(&inpcb.inp_laddr6) ? "*" :
940: xaddrbuf,
941: ntohs(inpcb.inp_lport));
942: if (inpcb.inp_fport) {
943: if (so.so_state & SS_CONNECTOUT)
944: printf(" --> ");
945: else
946: printf(" <-- ");
947: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
948: inet6_addrstr(&inpcb.inp_faddr6));
949: printf("%s:%d",
950: IN6_IS_ADDR_UNSPECIFIED(&inpcb.inp_faddr6) ? "*" :
951: xaddrbuf,
952: ntohs(inpcb.inp_fport));
953: }
954: } else if (proto.pr_protocol == IPPROTO_UDP) {
955: if (so.so_pcb == NULL)
956: break;
957: if (kvm_read(kd, (u_long)so.so_pcb, (char *)&inpcb,
958: sizeof(struct inpcb)) != sizeof(struct inpcb)) {
959: dprintf("can't read inpcb at %p", so.so_pcb);
960: goto bad;
961: }
962: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
963: inet6_addrstr(&inpcb.inp_laddr6));
964: printf(" %s:%d",
965: IN6_IS_ADDR_UNSPECIFIED(&inpcb.inp_laddr6) ? "*" :
966: xaddrbuf,
967: ntohs(inpcb.inp_lport));
1.33 itojun 968: if (inpcb.inp_fport) {
1.26 itojun 969: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
970: inet6_addrstr(&inpcb.inp_faddr6));
971: printf(" <-> %s:%d",
972: IN6_IS_ADDR_UNSPECIFIED(&inpcb.inp_faddr6) ? "*" :
973: xaddrbuf,
974: ntohs(inpcb.inp_fport));
1.33 itojun 975: }
1.26 itojun 976: } else if (so.so_pcb)
977: printf(" %p", so.so_pcb);
978: break;
979: #endif
1.1 deraadt 980: case AF_UNIX:
981: /* print address of pcb and connected pcb */
982: if (so.so_pcb) {
1.11 millert 983: printf(" %p", so.so_pcb);
1.1 deraadt 984: if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb,
985: sizeof(struct unpcb)) != sizeof(struct unpcb)){
1.17 mickey 986: dprintf("can't read unpcb at %p", so.so_pcb);
1.1 deraadt 987: goto bad;
988: }
989: if (unpcb.unp_conn) {
990: char shoconn[4], *cp;
991:
992: cp = shoconn;
993: if (!(so.so_state & SS_CANTRCVMORE))
994: *cp++ = '<';
995: *cp++ = '-';
996: if (!(so.so_state & SS_CANTSENDMORE))
997: *cp++ = '>';
998: *cp = '\0';
1.11 millert 999: printf(" %s %p", shoconn,
1000: unpcb.unp_conn);
1.1 deraadt 1001: }
1002: }
1003: break;
1004: default:
1005: /* print protocol number and socket address */
1.11 millert 1006: printf(" %d %p", proto.pr_protocol, sock);
1.1 deraadt 1007: }
1008: printf("\n");
1009: return;
1010: bad:
1011: printf("* error\n");
1012: }
1013:
1014: /*
1015: * getinetproto --
1016: * print name of protocol number
1017: */
1018: void
1019: getinetproto(number)
1020: int number;
1021: {
1.24 deraadt 1022: static int isopen;
1.32 mpech 1023: struct protoent *pe;
1.1 deraadt 1024:
1.24 deraadt 1025: if (!isopen)
1026: setprotoent(++isopen);
1027: if ((pe = getprotobynumber(number)) != NULL)
1028: printf(" %s", pe->p_name);
1029: else
1.1 deraadt 1030: printf(" %d", number);
1031: }
1032:
1.11 millert 1033: int
1.1 deraadt 1034: getfname(filename)
1035: char *filename;
1036: {
1037: struct stat statbuf;
1038: DEVS *cur;
1039:
1040: if (stat(filename, &statbuf)) {
1.27 millert 1041: warn("%s", filename);
1.1 deraadt 1042: return(0);
1043: }
1.17 mickey 1044: if ((cur = malloc(sizeof(DEVS))) == NULL)
1045: err(1, "malloc");
1.1 deraadt 1046: cur->next = devs;
1047: devs = cur;
1048:
1049: cur->ino = statbuf.st_ino;
1050: cur->fsid = statbuf.st_dev & 0xffff;
1051: cur->name = filename;
1052: return(1);
1053: }
1054:
1055: void
1056: usage()
1057: {
1058: (void)fprintf(stderr,
1059: "usage: fstat [-fnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n");
1060: exit(1);
1061: }
![[BACK]](/icons/back.gif){kind=icon}
Return to fstat.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / fstat