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 35 static 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 42 static char sccsid[] = "@(#)fstat.c 8.3 (Berkeley) 5/2/95"; 43 #endif 44 #endif /* not lint */ 45 #include <sys/cdefs.h> 46 __FBSDID("$FreeBSD$"); 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/tty.h> 62 #include <sys/filedesc.h> 63 #include <sys/queue.h> 64 #define _WANT_FILE 65 #include <sys/file.h> 66 #include <sys/conf.h> 67 #define _KERNEL 68 #include <sys/pipe.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> 74 #undef _KERNEL 75 #include <nfs/nfsproto.h> 76 #include <nfsclient/nfs.h> 77 #include <nfsclient/nfsnode.h> 78 79 80 #include <vm/vm.h> 81 #include <vm/vm_map.h> 82 #include <vm/vm_object.h> 83 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> 89 90 #include <ctype.h> 91 #include <err.h> 92 #include <fcntl.h> 93 #include <kvm.h> 94 #include <limits.h> 95 #include <nlist.h> 96 #include <paths.h> 97 #include <pwd.h> 98 #include <stdio.h> 99 #include <stdlib.h> 100 #include <stddef.h> 101 #include <string.h> 102 #include <unistd.h> 103 #include <netdb.h> 104 105 #include "fstat.h" 106 107 #define TEXT -1 108 #define CDIR -2 109 #define RDIR -3 110 #define TRACE -4 111 #define MMAP -5 112 #define JDIR -6 113 114 DEVS *devs; 115 116 #ifdef notdef 117 struct nlist nl[] = { 118 { "" }, 119 }; 120 #endif 121 122 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 */ 129 130 131 struct file **ofiles; /* buffer of pointers to file structures */ 132 int maxfiles; 133 #define ALLOC_OFILES(d) \ 134 if ((d) > maxfiles) { \ 135 free(ofiles); \ 136 ofiles = malloc((d) * sizeof(struct file *)); \ 137 if (ofiles == NULL) { \ 138 err(1, NULL); \ 139 } \ 140 maxfiles = (d); \ 141 } 142 143 char *memf, *nlistf; 144 kvm_t *kd; 145 146 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); 160 void usage(void); 161 char *kdevtoname(struct cdev *dev); 162 163 int 164 main(int argc, char **argv) 165 { 166 struct passwd *passwd; 167 int arg, ch, what; 168 169 arg = 0; 170 what = KERN_PROC_PROC; 171 nlistf = memf = NULL; 172 while ((ch = getopt(argc, argv, "fmnp:u:vN:M:")) != -1) 173 switch((char)ch) { 174 case 'f': 175 fsflg = 1; 176 break; 177 case 'M': 178 memf = optarg; 179 break; 180 case 'N': 181 nlistf = optarg; 182 break; 183 case 'm': 184 mflg = 1; 185 break; 186 case 'n': 187 nflg = 1; 188 break; 189 case 'p': 190 if (pflg++) 191 usage(); 192 if (!isdigit(*optarg)) { 193 warnx("-p requires a process id"); 194 usage(); 195 } 196 what = KERN_PROC_PID; 197 arg = atoi(optarg); 198 break; 199 case 'u': 200 if (uflg++) 201 usage(); 202 if (!(passwd = getpwnam(optarg))) 203 errx(1, "%s: unknown uid", optarg); 204 what = KERN_PROC_UID; 205 arg = passwd->pw_uid; 206 break; 207 case 'v': 208 vflg = 1; 209 break; 210 case '?': 211 default: 212 usage(); 213 } 214 215 if (*(argv += optind)) { 216 for (; *argv; ++argv) { 217 if (getfname(*argv)) 218 checkfile = 1; 219 } 220 if (!checkfile) /* file(s) specified, but none accessable */ 221 exit(1); 222 } 223 224 if (fsflg && !checkfile) { 225 /* -f with no files means use wd */ 226 if (getfname(".") == 0) 227 exit(1); 228 checkfile = 1; 229 } 230 231 if (memf != NULL) 232 fstat_kvm(what, arg); 233 else 234 fstat_sysctl(what, arg); 235 exit(0); 236 } 237 238 static void 239 print_header(void) 240 { 241 242 if (nflg) 243 printf("%s", 244 "USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 245 else 246 printf("%s", 247 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 248 if (checkfile && fsflg == 0) 249 printf(" NAME\n"); 250 else 251 putchar('\n'); 252 } 253 254 static void 255 fstat_kvm(int what, int arg) 256 { 257 struct kinfo_proc *p, *plast; 258 char buf[_POSIX2_LINE_MAX]; 259 int cnt; 260 261 ALLOC_OFILES(256); /* reserve space for file pointers */ 262 263 /* 264 * Discard setgid privileges if not the running kernel so that bad 265 * guys can't print interesting stuff from kernel memory. 266 */ 267 if (nlistf != NULL || memf != NULL) 268 setgid(getgid()); 269 270 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) 271 errx(1, "%s", buf); 272 setgid(getgid()); 273 #ifdef notdef 274 if (kvm_nlist(kd, nl) != 0) 275 errx(1, "no namelist: %s", kvm_geterr(kd)); 276 #endif 277 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) 278 errx(1, "%s", kvm_geterr(kd)); 279 print_header(); 280 for (plast = &p[cnt]; p < plast; ++p) { 281 if (p->ki_stat == SZOMB) 282 continue; 283 dofiles(p); 284 if (mflg) 285 dommap(p); 286 } 287 } 288 289 static void 290 fstat_sysctl(int what, int arg) 291 { 292 293 /* not yet implemented */ 294 fstat_kvm(what, arg); 295 } 296 297 const char *Uname, *Comm; 298 int Pid; 299 300 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 301 switch(i) { \ 302 case TEXT: \ 303 printf(" text"); \ 304 break; \ 305 case CDIR: \ 306 printf(" wd"); \ 307 break; \ 308 case RDIR: \ 309 printf(" root"); \ 310 break; \ 311 case TRACE: \ 312 printf(" tr"); \ 313 break; \ 314 case MMAP: \ 315 printf(" mmap"); \ 316 break; \ 317 case JDIR: \ 318 printf(" jail"); \ 319 break; \ 320 default: \ 321 printf(" %4d", i); \ 322 break; \ 323 } 324 325 /* 326 * print open files attributed to this process 327 */ 328 void 329 dofiles(struct kinfo_proc *kp) 330 { 331 int i; 332 struct file file; 333 struct filedesc filed; 334 335 Uname = user_from_uid(kp->ki_uid, 0); 336 Pid = kp->ki_pid; 337 Comm = kp->ki_comm; 338 339 if (kp->ki_fd == NULL) 340 return; 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); 344 return; 345 } 346 /* 347 * root directory vnode, if one 348 */ 349 if (filed.fd_rdir) 350 vtrans(filed.fd_rdir, RDIR, FREAD); 351 /* 352 * current working directory vnode 353 */ 354 if (filed.fd_cdir) 355 vtrans(filed.fd_cdir, CDIR, FREAD); 356 /* 357 * jail root, if any. 358 */ 359 if (filed.fd_jdir) 360 vtrans(filed.fd_jdir, JDIR, FREAD); 361 /* 362 * ktrace vnode, if one 363 */ 364 if (kp->ki_tracep) 365 vtrans(kp->ki_tracep, TRACE, FREAD|FWRITE); 366 /* 367 * text vnode, if one 368 */ 369 if (kp->ki_textvp) 370 vtrans(kp->ki_textvp, TEXT, FREAD); 371 /* 372 * open files 373 */ 374 #define FPSIZE (sizeof (struct file *)) 375 #define MAX_LASTFILE (0x1000000) 376 377 /* Sanity check on filed.fd_lastfile */ 378 if (filed.fd_lastfile <= -1 || filed.fd_lastfile > MAX_LASTFILE) 379 return; 380 381 ALLOC_OFILES(filed.fd_lastfile+1); 382 if (!KVM_READ(filed.fd_ofiles, ofiles, 383 (filed.fd_lastfile+1) * FPSIZE)) { 384 dprintf(stderr, 385 "can't read file structures at %p for pid %d\n", 386 (void *)filed.fd_ofiles, Pid); 387 return; 388 } 389 for (i = 0; i <= filed.fd_lastfile; i++) { 390 if (ofiles[i] == NULL) 391 continue; 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); 395 continue; 396 } 397 if (file.f_type == DTYPE_VNODE) 398 vtrans(file.f_vnode, i, file.f_flag); 399 else if (file.f_type == DTYPE_SOCKET) { 400 if (checkfile == 0) 401 socktrans(file.f_data, i); 402 } 403 #ifdef DTYPE_PIPE 404 else if (file.f_type == DTYPE_PIPE) { 405 if (checkfile == 0) 406 pipetrans(file.f_data, i, file.f_flag); 407 } 408 #endif 409 #ifdef DTYPE_FIFO 410 else if (file.f_type == DTYPE_FIFO) { 411 if (checkfile == 0) 412 vtrans(file.f_vnode, i, file.f_flag); 413 } 414 #endif 415 #ifdef DTYPE_PTS 416 else if (file.f_type == DTYPE_PTS) { 417 if (checkfile == 0) 418 ptstrans(file.f_data, i, file.f_flag); 419 } 420 #endif 421 else { 422 dprintf(stderr, 423 "unknown file type %d for file %d of pid %d\n", 424 file.f_type, i, Pid); 425 } 426 } 427 } 428 429 void 430 dommap(struct kinfo_proc *kp) 431 { 432 vm_map_t map; 433 struct vmspace vmspace; 434 struct vm_map_entry entry; 435 vm_map_entry_t entryp; 436 struct vm_object object; 437 vm_object_t objp; 438 int prot, fflags; 439 440 if (!KVM_READ(kp->ki_vmspace, &vmspace, sizeof(vmspace))) { 441 dprintf(stderr, 442 "can't read vmspace at %p for pid %d\n", 443 (void *)kp->ki_vmspace, Pid); 444 return; 445 } 446 map = &vmspace.vm_map; 447 448 for (entryp = map->header.next; 449 entryp != &kp->ki_vmspace->vm_map.header; entryp = entry.next) { 450 if (!KVM_READ(entryp, &entry, sizeof(entry))) { 451 dprintf(stderr, 452 "can't read vm_map_entry at %p for pid %d\n", 453 (void *)entryp, Pid); 454 return; 455 } 456 457 if (entry.eflags & MAP_ENTRY_IS_SUB_MAP) 458 continue; 459 460 if ((objp = entry.object.vm_object) == NULL) 461 continue; 462 463 for (; objp; objp = object.backing_object) { 464 if (!KVM_READ(objp, &object, sizeof(object))) { 465 dprintf(stderr, 466 "can't read vm_object at %p for pid %d\n", 467 (void *)objp, Pid); 468 return; 469 } 470 } 471 472 prot = entry.protection; 473 fflags = (prot & VM_PROT_READ ? FREAD : 0) | 474 (prot & VM_PROT_WRITE ? FWRITE : 0); 475 476 switch (object.type) { 477 case OBJT_VNODE: 478 vtrans((struct vnode *)object.handle, MMAP, fflags); 479 break; 480 default: 481 break; 482 } 483 } 484 } 485 486 char * 487 kdevtoname(struct cdev *dev) 488 { 489 struct cdev si; 490 491 if (!KVM_READ(dev, &si, sizeof si)) 492 return (NULL); 493 return (strdup(si.__si_namebuf)); 494 } 495 496 void 497 vtrans(struct vnode *vp, int i, int flag) 498 { 499 struct vnode vn; 500 struct filestat fst; 501 char rw[3], mode[15], tagstr[12], *tagptr; 502 const char *badtype, *filename; 503 504 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", 507 (void *)vp, Pid); 508 return; 509 } 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", 513 (void *)vp, Pid); 514 return; 515 } 516 tagstr[sizeof(tagstr) - 1] = '\0'; 517 if (vn.v_type == VNON) 518 badtype = "none"; 519 else if (vn.v_type == VBAD) 520 badtype = "bad"; 521 else { 522 if (!strcmp("ufs", tagstr)) { 523 if (!ufs_filestat(&vn, &fst)) 524 badtype = "error"; 525 } else if (!strcmp("devfs", tagstr)) { 526 if (!devfs_filestat(&vn, &fst)) 527 badtype = "error"; 528 } else if (!strcmp("nfs", tagstr)) { 529 if (!nfs_filestat(&vn, &fst)) 530 badtype = "error"; 531 } else if (!strcmp("msdosfs", tagstr)) { 532 if (!msdosfs_filestat(&vn, &fst)) 533 badtype = "error"; 534 } else if (!strcmp("isofs", tagstr)) { 535 if (!isofs_filestat(&vn, &fst)) 536 badtype = "error"; 537 #ifdef ZFS 538 } else if (!strcmp("zfs", tagstr)) { 539 if (!zfs_filestat(&vn, &fst)) 540 badtype = "error"; 541 #endif 542 } else { 543 static char unknown[32]; 544 snprintf(unknown, sizeof unknown, "?(%s)", tagstr); 545 badtype = unknown; 546 } 547 } 548 if (checkfile) { 549 int fsmatch = 0; 550 DEVS *d; 551 552 if (badtype) 553 return; 554 for (d = devs; d != NULL; d = d->next) 555 if (d->fsid == fst.fsid) { 556 fsmatch = 1; 557 if (d->ino == fst.fileid) { 558 filename = d->name; 559 break; 560 } 561 } 562 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 563 return; 564 } 565 PREFIX(i); 566 if (badtype) { 567 (void)printf(" - - %10s -\n", badtype); 568 return; 569 } 570 if (nflg) 571 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 572 else 573 (void)printf(" %-8s", getmnton(vn.v_mount)); 574 if (nflg) 575 (void)sprintf(mode, "%o", fst.mode); 576 else 577 strmode(fst.mode, mode); 578 (void)printf(" %6ld %10s", fst.fileid, mode); 579 switch (vn.v_type) { 580 case VBLK: 581 case VCHR: { 582 char *name; 583 584 name = kdevtoname(vn.v_rdev); 585 if (nflg || !name) 586 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 587 else { 588 printf(" %6s", name); 589 free(name); 590 } 591 break; 592 } 593 default: 594 printf(" %6lu", fst.size); 595 } 596 rw[0] = '\0'; 597 if (flag & FREAD) 598 strcat(rw, "r"); 599 if (flag & FWRITE) 600 strcat(rw, "w"); 601 printf(" %2s", rw); 602 if (filename && !fsflg) 603 printf(" %s", filename); 604 putchar('\n'); 605 } 606 607 int 608 ufs_filestat(struct vnode *vp, struct filestat *fsp) 609 { 610 struct inode inode; 611 612 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); 615 return 0; 616 } 617 /* 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 620 * comparisons 621 */ 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; 630 else 631 fsp->rdev = inode.i_din2->di_rdev; 632 #else 633 fsp->rdev = 0; 634 #endif 635 636 return 1; 637 } 638 639 int 640 devfs_filestat(struct vnode *vp, struct filestat *fsp) 641 { 642 struct devfs_dirent devfs_dirent; 643 struct mount mount; 644 struct vnode vnode; 645 646 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); 649 return 0; 650 } 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); 654 return 0; 655 } 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); 659 return 0; 660 } 661 fsp->fsid = (long)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; 664 fsp->size = 0; 665 fsp->rdev = dev2udev(vnode.v_rdev); 666 667 return 1; 668 } 669 670 int 671 nfs_filestat(struct vnode *vp, struct filestat *fsp) 672 { 673 struct nfsnode nfsnode; 674 mode_t mode; 675 676 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); 679 return 0; 680 } 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) { 687 case VREG: 688 mode |= S_IFREG; 689 break; 690 case VDIR: 691 mode |= S_IFDIR; 692 break; 693 case VBLK: 694 mode |= S_IFBLK; 695 break; 696 case VCHR: 697 mode |= S_IFCHR; 698 break; 699 case VLNK: 700 mode |= S_IFLNK; 701 break; 702 case VSOCK: 703 mode |= S_IFSOCK; 704 break; 705 case VFIFO: 706 mode |= S_IFIFO; 707 break; 708 case VNON: 709 case VBAD: 710 case VMARKER: 711 return 0; 712 }; 713 fsp->mode = mode; 714 715 return 1; 716 } 717 718 719 char * 720 getmnton(struct mount *m) 721 { 722 static struct mount mount; 723 static struct mtab { 724 struct mtab *next; 725 struct mount *m; 726 char mntonname[MNAMELEN]; 727 } *mhead = NULL; 728 struct mtab *mt; 729 730 for (mt = mhead; mt != NULL; mt = mt->next) 731 if (m == mt->m) 732 return (mt->mntonname); 733 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 734 warnx("can't read mount table at %p", (void *)m); 735 return (NULL); 736 } 737 if ((mt = malloc(sizeof (struct mtab))) == NULL) 738 err(1, NULL); 739 mt->m = m; 740 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 741 mt->next = mhead; 742 mhead = mt; 743 return (mt->mntonname); 744 } 745 746 void 747 pipetrans(struct pipe *pi, int i, int flag) 748 { 749 struct pipe pip; 750 char rw[3]; 751 752 PREFIX(i); 753 754 /* fill in socket */ 755 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) { 756 dprintf(stderr, "can't read pipe at %p\n", (void *)pi); 757 goto bad; 758 } 759 760 printf("* pipe %8lx <-> %8lx", (u_long)pi, (u_long)pip.pipe_peer); 761 printf(" %6d", (int)pip.pipe_buffer.cnt); 762 rw[0] = '\0'; 763 if (flag & FREAD) 764 strcat(rw, "r"); 765 if (flag & FWRITE) 766 strcat(rw, "w"); 767 printf(" %2s", rw); 768 putchar('\n'); 769 return; 770 771 bad: 772 printf("* error\n"); 773 } 774 775 void 776 socktrans(struct socket *sock, int i) 777 { 778 static const char *stypename[] = { 779 "unused", /* 0 */ 780 "stream", /* 1 */ 781 "dgram", /* 2 */ 782 "raw", /* 3 */ 783 "rdm", /* 4 */ 784 "seqpak" /* 5 */ 785 }; 786 #define STYPEMAX 5 787 struct socket so; 788 struct protosw proto; 789 struct domain dom; 790 struct inpcb inpcb; 791 struct unpcb unpcb; 792 int len; 793 char dname[32]; 794 795 PREFIX(i); 796 797 /* fill in socket */ 798 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 799 dprintf(stderr, "can't read sock at %p\n", (void *)sock); 800 goto bad; 801 } 802 803 /* 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); 807 goto bad; 808 } 809 810 /* fill in domain */ 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); 814 goto bad; 815 } 816 817 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); 821 dname[0] = '\0'; 822 } 823 else 824 dname[len] = '\0'; 825 826 if ((u_short)so.so_type > STYPEMAX) 827 printf("* %s ?%d", dname, so.so_type); 828 else 829 printf("* %s %s", dname, stypename[so.so_type]); 830 831 /* 832 * protocol specific formatting 833 * 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. 841 */ 842 switch(dom.dom_family) { 843 case AF_INET: 844 case AF_INET6: 845 getinetproto(proto.pr_protocol); 846 if (proto.pr_protocol == IPPROTO_TCP ) { 847 if (so.so_pcb) { 848 if (kvm_read(kd, (u_long)so.so_pcb, 849 (char *)&inpcb, sizeof(struct inpcb)) 850 != sizeof(struct inpcb)) { 851 dprintf(stderr, 852 "can't read inpcb at %p\n", 853 (void *)so.so_pcb); 854 goto bad; 855 } 856 printf(" %lx", (u_long)inpcb.inp_ppcb); 857 } 858 } 859 else if (so.so_pcb) 860 printf(" %lx", (u_long)so.so_pcb); 861 break; 862 case AF_UNIX: 863 /* print address of pcb and connected pcb */ 864 if (so.so_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", 869 (void *)so.so_pcb); 870 goto bad; 871 } 872 if (unpcb.unp_conn) { 873 char shoconn[4], *cp; 874 875 cp = shoconn; 876 if (!(so.so_rcv.sb_state & SBS_CANTRCVMORE)) 877 *cp++ = '<'; 878 *cp++ = '-'; 879 if (!(so.so_snd.sb_state & SBS_CANTSENDMORE)) 880 *cp++ = '>'; 881 *cp = '\0'; 882 printf(" %s %lx", shoconn, 883 (u_long)unpcb.unp_conn); 884 } 885 } 886 break; 887 default: 888 /* print protocol number and socket address */ 889 printf(" %d %lx", proto.pr_protocol, (u_long)sock); 890 } 891 printf("\n"); 892 return; 893 bad: 894 printf("* error\n"); 895 } 896 897 void 898 ptstrans(struct tty *tp, int i, int flag) 899 { 900 struct tty tty; 901 char *name; 902 char rw[3]; 903 dev_t rdev; 904 905 PREFIX(i); 906 907 /* Obtain struct tty. */ 908 if (!KVM_READ(tp, &tty, sizeof(struct tty))) { 909 dprintf(stderr, "can't read tty at %p\n", (void *)tp); 910 goto bad; 911 } 912 913 /* Figure out the device name. */ 914 name = kdevtoname(tty.t_dev); 915 if (name == NULL) { 916 dprintf(stderr, "can't determine tty name at %p\n", (void *)tp); 917 goto bad; 918 } 919 920 rw[0] = '\0'; 921 if (flag & FREAD) 922 strcat(rw, "r"); 923 if (flag & FWRITE) 924 strcat(rw, "w"); 925 926 printf("* pseudo-terminal master "); 927 if (nflg || !name) { 928 rdev = dev2udev(tty.t_dev); 929 printf("%10d,%-2d", major(rdev), minor(rdev)); 930 } else { 931 printf("%10s", name); 932 } 933 printf(" %2s\n", rw); 934 935 free(name); 936 937 return; 938 bad: 939 printf("* error\n"); 940 } 941 942 /* 943 * Read the cdev structure in the kernel in order to work out the 944 * associated dev_t 945 */ 946 dev_t 947 dev2udev(struct cdev *dev) 948 { 949 struct cdev_priv priv; 950 951 if (KVM_READ(cdev2priv(dev), &priv, sizeof priv)) { 952 return ((dev_t)priv.cdp_inode); 953 } else { 954 dprintf(stderr, "can't convert cdev *%p to a dev_t\n", dev); 955 return -1; 956 } 957 } 958 959 /* 960 * getinetproto -- 961 * print name of protocol number 962 */ 963 void 964 getinetproto(int number) 965 { 966 static int isopen; 967 struct protoent *pe; 968 969 if (!isopen) 970 setprotoent(++isopen); 971 if ((pe = getprotobynumber(number)) != NULL) 972 printf(" %s", pe->p_name); 973 else 974 printf(" %d", number); 975 } 976 977 int 978 getfname(const char *filename) 979 { 980 struct stat statbuf; 981 DEVS *cur; 982 983 if (stat(filename, &statbuf)) { 984 warn("%s", filename); 985 return(0); 986 } 987 if ((cur = malloc(sizeof(DEVS))) == NULL) 988 err(1, NULL); 989 cur->next = devs; 990 devs = cur; 991 992 cur->ino = statbuf.st_ino; 993 cur->fsid = statbuf.st_dev; 994 cur->name = filename; 995 return(1); 996 } 997 998 #ifdef ZFS 999 void * 1000 getvnodedata(struct vnode *vp) 1001 { 1002 return (vp->v_data); 1003 } 1004 1005 struct mount * 1006 getvnodemount(struct vnode *vp) 1007 { 1008 return (vp->v_mount); 1009 } 1010 #endif 1011 1012 void 1013 usage(void) 1014 { 1015 (void)fprintf(stderr, 1016 "usage: fstat [-fmnv] [-M core] [-N system] [-p pid] [-u user] [file ...]\n"); 1017 exit(1); 1018 } 1019