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/filedesc.h> 62 #include <sys/queue.h> 63 #define _WANT_FILE 64 #include <sys/file.h> 65 #include <sys/conf.h> 66 #define _KERNEL 67 #include <sys/pipe.h> 68 #include <sys/mount.h> 69 #include <ufs/ufs/quota.h> 70 #include <ufs/ufs/inode.h> 71 #include <fs/devfs/devfs.h> 72 #include <fs/devfs/devfs_int.h> 73 #undef _KERNEL 74 #include <nfs/nfsproto.h> 75 #include <nfs/rpcv2.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 getinetproto(int number); 158 int getfname(const char *filename); 159 void usage(void); 160 char *kdevtoname(struct cdev *dev); 161 162 int 163 main(int argc, char **argv) 164 { 165 struct passwd *passwd; 166 int arg, ch, what; 167 168 arg = 0; 169 what = KERN_PROC_PROC; 170 nlistf = memf = NULL; 171 while ((ch = getopt(argc, argv, "fmnp:u:vN:M:")) != -1) 172 switch((char)ch) { 173 case 'f': 174 fsflg = 1; 175 break; 176 case 'M': 177 memf = optarg; 178 break; 179 case 'N': 180 nlistf = optarg; 181 break; 182 case 'm': 183 mflg = 1; 184 break; 185 case 'n': 186 nflg = 1; 187 break; 188 case 'p': 189 if (pflg++) 190 usage(); 191 if (!isdigit(*optarg)) { 192 warnx("-p requires a process id"); 193 usage(); 194 } 195 what = KERN_PROC_PID; 196 arg = atoi(optarg); 197 break; 198 case 'u': 199 if (uflg++) 200 usage(); 201 if (!(passwd = getpwnam(optarg))) 202 errx(1, "%s: unknown uid", optarg); 203 what = KERN_PROC_UID; 204 arg = passwd->pw_uid; 205 break; 206 case 'v': 207 vflg = 1; 208 break; 209 case '?': 210 default: 211 usage(); 212 } 213 214 if (*(argv += optind)) { 215 for (; *argv; ++argv) { 216 if (getfname(*argv)) 217 checkfile = 1; 218 } 219 if (!checkfile) /* file(s) specified, but none accessable */ 220 exit(1); 221 } 222 223 if (fsflg && !checkfile) { 224 /* -f with no files means use wd */ 225 if (getfname(".") == 0) 226 exit(1); 227 checkfile = 1; 228 } 229 230 if (memf != NULL) 231 fstat_kvm(what, arg); 232 else 233 fstat_sysctl(what, arg); 234 exit(0); 235 } 236 237 static void 238 print_header(void) 239 { 240 241 if (nflg) 242 printf("%s", 243 "USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 244 else 245 printf("%s", 246 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 247 if (checkfile && fsflg == 0) 248 printf(" NAME\n"); 249 else 250 putchar('\n'); 251 } 252 253 static void 254 fstat_kvm(int what, int arg) 255 { 256 struct kinfo_proc *p, *plast; 257 char buf[_POSIX2_LINE_MAX]; 258 int cnt; 259 260 ALLOC_OFILES(256); /* reserve space for file pointers */ 261 262 /* 263 * Discard setgid privileges if not the running kernel so that bad 264 * guys can't print interesting stuff from kernel memory. 265 */ 266 if (nlistf != NULL || memf != NULL) 267 setgid(getgid()); 268 269 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) 270 errx(1, "%s", buf); 271 setgid(getgid()); 272 #ifdef notdef 273 if (kvm_nlist(kd, nl) != 0) 274 errx(1, "no namelist: %s", kvm_geterr(kd)); 275 #endif 276 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) 277 errx(1, "%s", kvm_geterr(kd)); 278 print_header(); 279 for (plast = &p[cnt]; p < plast; ++p) { 280 if (p->ki_stat == SZOMB) 281 continue; 282 dofiles(p); 283 if (mflg) 284 dommap(p); 285 } 286 } 287 288 static void 289 fstat_sysctl(int what, int arg) 290 { 291 292 /* not yet implemented */ 293 fstat_kvm(what, arg); 294 } 295 296 const char *Uname, *Comm; 297 int Pid; 298 299 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 300 switch(i) { \ 301 case TEXT: \ 302 printf(" text"); \ 303 break; \ 304 case CDIR: \ 305 printf(" wd"); \ 306 break; \ 307 case RDIR: \ 308 printf(" root"); \ 309 break; \ 310 case TRACE: \ 311 printf(" tr"); \ 312 break; \ 313 case MMAP: \ 314 printf(" mmap"); \ 315 break; \ 316 case JDIR: \ 317 printf(" jail"); \ 318 break; \ 319 default: \ 320 printf(" %4d", i); \ 321 break; \ 322 } 323 324 /* 325 * print open files attributed to this process 326 */ 327 void 328 dofiles(struct kinfo_proc *kp) 329 { 330 int i; 331 struct file file; 332 struct filedesc filed; 333 334 Uname = user_from_uid(kp->ki_uid, 0); 335 Pid = kp->ki_pid; 336 Comm = kp->ki_comm; 337 338 if (kp->ki_fd == NULL) 339 return; 340 if (!KVM_READ(kp->ki_fd, &filed, sizeof (filed))) { 341 dprintf(stderr, "can't read filedesc at %p for pid %d\n", 342 (void *)kp->ki_fd, Pid); 343 return; 344 } 345 /* 346 * root directory vnode, if one 347 */ 348 if (filed.fd_rdir) 349 vtrans(filed.fd_rdir, RDIR, FREAD); 350 /* 351 * current working directory vnode 352 */ 353 if (filed.fd_cdir) 354 vtrans(filed.fd_cdir, CDIR, FREAD); 355 /* 356 * jail root, if any. 357 */ 358 if (filed.fd_jdir) 359 vtrans(filed.fd_jdir, JDIR, FREAD); 360 /* 361 * ktrace vnode, if one 362 */ 363 if (kp->ki_tracep) 364 vtrans(kp->ki_tracep, TRACE, FREAD|FWRITE); 365 /* 366 * text vnode, if one 367 */ 368 if (kp->ki_textvp) 369 vtrans(kp->ki_textvp, TEXT, FREAD); 370 /* 371 * open files 372 */ 373 #define FPSIZE (sizeof (struct file *)) 374 #define MAX_LASTFILE (0x1000000) 375 376 /* Sanity check on filed.fd_lastfile */ 377 if (filed.fd_lastfile <= -1 || filed.fd_lastfile > MAX_LASTFILE) 378 return; 379 380 ALLOC_OFILES(filed.fd_lastfile+1); 381 if (!KVM_READ(filed.fd_ofiles, ofiles, 382 (filed.fd_lastfile+1) * FPSIZE)) { 383 dprintf(stderr, 384 "can't read file structures at %p for pid %d\n", 385 (void *)filed.fd_ofiles, Pid); 386 return; 387 } 388 for (i = 0; i <= filed.fd_lastfile; i++) { 389 if (ofiles[i] == NULL) 390 continue; 391 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) { 392 dprintf(stderr, "can't read file %d at %p for pid %d\n", 393 i, (void *)ofiles[i], Pid); 394 continue; 395 } 396 if (file.f_type == DTYPE_VNODE) 397 vtrans(file.f_vnode, i, file.f_flag); 398 else if (file.f_type == DTYPE_SOCKET) { 399 if (checkfile == 0) 400 socktrans(file.f_data, i); 401 } 402 #ifdef DTYPE_PIPE 403 else if (file.f_type == DTYPE_PIPE) { 404 if (checkfile == 0) 405 pipetrans(file.f_data, i, file.f_flag); 406 } 407 #endif 408 #ifdef DTYPE_FIFO 409 else if (file.f_type == DTYPE_FIFO) { 410 if (checkfile == 0) 411 vtrans(file.f_vnode, i, file.f_flag); 412 } 413 #endif 414 else { 415 dprintf(stderr, 416 "unknown file type %d for file %d of pid %d\n", 417 file.f_type, i, Pid); 418 } 419 } 420 } 421 422 void 423 dommap(struct kinfo_proc *kp) 424 { 425 vm_map_t map; 426 struct vmspace vmspace; 427 struct vm_map_entry entry; 428 vm_map_entry_t entryp; 429 struct vm_object object; 430 vm_object_t objp; 431 int prot, fflags; 432 433 if (!KVM_READ(kp->ki_vmspace, &vmspace, sizeof(vmspace))) { 434 dprintf(stderr, 435 "can't read vmspace at %p for pid %d\n", 436 (void *)kp->ki_vmspace, Pid); 437 return; 438 } 439 map = &vmspace.vm_map; 440 441 for (entryp = map->header.next; 442 entryp != &kp->ki_vmspace->vm_map.header; entryp = entry.next) { 443 if (!KVM_READ(entryp, &entry, sizeof(entry))) { 444 dprintf(stderr, 445 "can't read vm_map_entry at %p for pid %d\n", 446 (void *)entryp, Pid); 447 return; 448 } 449 450 if (entry.eflags & MAP_ENTRY_IS_SUB_MAP) 451 continue; 452 453 if ((objp = entry.object.vm_object) == NULL) 454 continue; 455 456 for (; objp; objp = object.backing_object) { 457 if (!KVM_READ(objp, &object, sizeof(object))) { 458 dprintf(stderr, 459 "can't read vm_object at %p for pid %d\n", 460 (void *)objp, Pid); 461 return; 462 } 463 } 464 465 prot = entry.protection; 466 fflags = (prot & VM_PROT_READ ? FREAD : 0) | 467 (prot & VM_PROT_WRITE ? FWRITE : 0); 468 469 switch (object.type) { 470 case OBJT_VNODE: 471 vtrans((struct vnode *)object.handle, MMAP, fflags); 472 break; 473 default: 474 break; 475 } 476 } 477 } 478 479 char * 480 kdevtoname(struct cdev *dev) 481 { 482 struct cdev si; 483 484 if (!KVM_READ(dev, &si, sizeof si)) 485 return (NULL); 486 return (strdup(si.__si_namebuf)); 487 } 488 489 void 490 vtrans(struct vnode *vp, int i, int flag) 491 { 492 struct vnode vn; 493 struct filestat fst; 494 char rw[3], mode[15], tagstr[12], *tagptr; 495 const char *badtype, *filename; 496 497 filename = badtype = NULL; 498 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 499 dprintf(stderr, "can't read vnode at %p for pid %d\n", 500 (void *)vp, Pid); 501 return; 502 } 503 if (!KVM_READ(&vp->v_tag, &tagptr, sizeof tagptr) || 504 !KVM_READ(tagptr, tagstr, sizeof tagstr)) { 505 dprintf(stderr, "can't read v_tag at %p for pid %d\n", 506 (void *)vp, Pid); 507 return; 508 } 509 tagstr[sizeof(tagstr) - 1] = '\0'; 510 if (vn.v_type == VNON) 511 badtype = "none"; 512 else if (vn.v_type == VBAD) 513 badtype = "bad"; 514 else { 515 if (!strcmp("ufs", tagstr)) { 516 if (!ufs_filestat(&vn, &fst)) 517 badtype = "error"; 518 } else if (!strcmp("devfs", tagstr)) { 519 if (!devfs_filestat(&vn, &fst)) 520 badtype = "error"; 521 } else if (!strcmp("nfs", tagstr)) { 522 if (!nfs_filestat(&vn, &fst)) 523 badtype = "error"; 524 } else if (!strcmp("msdosfs", tagstr)) { 525 if (!msdosfs_filestat(&vn, &fst)) 526 badtype = "error"; 527 } else if (!strcmp("isofs", tagstr)) { 528 if (!isofs_filestat(&vn, &fst)) 529 badtype = "error"; 530 #ifdef ZFS 531 } else if (!strcmp("zfs", tagstr)) { 532 if (!zfs_filestat(&vn, &fst)) 533 badtype = "error"; 534 #endif 535 } else { 536 static char unknown[32]; 537 snprintf(unknown, sizeof unknown, "?(%s)", tagstr); 538 badtype = unknown; 539 } 540 } 541 if (checkfile) { 542 int fsmatch = 0; 543 DEVS *d; 544 545 if (badtype) 546 return; 547 for (d = devs; d != NULL; d = d->next) 548 if (d->fsid == fst.fsid) { 549 fsmatch = 1; 550 if (d->ino == fst.fileid) { 551 filename = d->name; 552 break; 553 } 554 } 555 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 556 return; 557 } 558 PREFIX(i); 559 if (badtype) { 560 (void)printf(" - - %10s -\n", badtype); 561 return; 562 } 563 if (nflg) 564 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 565 else 566 (void)printf(" %-8s", getmnton(vn.v_mount)); 567 if (nflg) 568 (void)sprintf(mode, "%o", fst.mode); 569 else 570 strmode(fst.mode, mode); 571 (void)printf(" %6ld %10s", fst.fileid, mode); 572 switch (vn.v_type) { 573 case VBLK: 574 case VCHR: { 575 char *name; 576 577 name = kdevtoname(vn.v_rdev); 578 if (nflg || !name) 579 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 580 else { 581 printf(" %6s", name); 582 free(name); 583 } 584 break; 585 } 586 default: 587 printf(" %6lu", fst.size); 588 } 589 rw[0] = '\0'; 590 if (flag & FREAD) 591 strcat(rw, "r"); 592 if (flag & FWRITE) 593 strcat(rw, "w"); 594 printf(" %2s", rw); 595 if (filename && !fsflg) 596 printf(" %s", filename); 597 putchar('\n'); 598 } 599 600 int 601 ufs_filestat(struct vnode *vp, struct filestat *fsp) 602 { 603 struct inode inode; 604 605 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 606 dprintf(stderr, "can't read inode at %p for pid %d\n", 607 (void *)VTOI(vp), Pid); 608 return 0; 609 } 610 /* 611 * The st_dev from stat(2) is a dev_t. These kernel structures 612 * contain cdev pointers. We need to convert to dev_t to make 613 * comparisons 614 */ 615 fsp->fsid = dev2udev(inode.i_dev); 616 fsp->fileid = (long)inode.i_number; 617 fsp->mode = (mode_t)inode.i_mode; 618 fsp->size = (u_long)inode.i_size; 619 #if should_be_but_is_hard 620 /* XXX - need to load i_ump and i_din[12] from kernel memory */ 621 if (inode.i_ump->um_fstype == UFS1) 622 fsp->rdev = inode.i_din1->di_rdev; 623 else 624 fsp->rdev = inode.i_din2->di_rdev; 625 #else 626 fsp->rdev = 0; 627 #endif 628 629 return 1; 630 } 631 632 int 633 devfs_filestat(struct vnode *vp, struct filestat *fsp) 634 { 635 struct devfs_dirent devfs_dirent; 636 struct mount mount; 637 struct vnode vnode; 638 639 if (!KVM_READ(vp->v_data, &devfs_dirent, sizeof (devfs_dirent))) { 640 dprintf(stderr, "can't read devfs_dirent at %p for pid %d\n", 641 (void *)vp->v_data, Pid); 642 return 0; 643 } 644 if (!KVM_READ(vp->v_mount, &mount, sizeof (mount))) { 645 dprintf(stderr, "can't read mount at %p for pid %d\n", 646 (void *)vp->v_mount, Pid); 647 return 0; 648 } 649 if (!KVM_READ(devfs_dirent.de_vnode, &vnode, sizeof (vnode))) { 650 dprintf(stderr, "can't read vnode at %p for pid %d\n", 651 (void *)devfs_dirent.de_vnode, Pid); 652 return 0; 653 } 654 fsp->fsid = (long)mount.mnt_stat.f_fsid.val[0]; 655 fsp->fileid = devfs_dirent.de_inode; 656 fsp->mode = (devfs_dirent.de_mode & ~S_IFMT) | S_IFCHR; 657 fsp->size = 0; 658 fsp->rdev = dev2udev(vnode.v_rdev); 659 660 return 1; 661 } 662 663 int 664 nfs_filestat(struct vnode *vp, struct filestat *fsp) 665 { 666 struct nfsnode nfsnode; 667 mode_t mode; 668 669 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 670 dprintf(stderr, "can't read nfsnode at %p for pid %d\n", 671 (void *)VTONFS(vp), Pid); 672 return 0; 673 } 674 fsp->fsid = nfsnode.n_vattr.va_fsid; 675 fsp->fileid = nfsnode.n_vattr.va_fileid; 676 fsp->size = nfsnode.n_size; 677 fsp->rdev = nfsnode.n_vattr.va_rdev; 678 mode = (mode_t)nfsnode.n_vattr.va_mode; 679 switch (vp->v_type) { 680 case VREG: 681 mode |= S_IFREG; 682 break; 683 case VDIR: 684 mode |= S_IFDIR; 685 break; 686 case VBLK: 687 mode |= S_IFBLK; 688 break; 689 case VCHR: 690 mode |= S_IFCHR; 691 break; 692 case VLNK: 693 mode |= S_IFLNK; 694 break; 695 case VSOCK: 696 mode |= S_IFSOCK; 697 break; 698 case VFIFO: 699 mode |= S_IFIFO; 700 break; 701 case VNON: 702 case VBAD: 703 case VMARKER: 704 return 0; 705 }; 706 fsp->mode = mode; 707 708 return 1; 709 } 710 711 712 char * 713 getmnton(struct mount *m) 714 { 715 static struct mount mount; 716 static struct mtab { 717 struct mtab *next; 718 struct mount *m; 719 char mntonname[MNAMELEN]; 720 } *mhead = NULL; 721 struct mtab *mt; 722 723 for (mt = mhead; mt != NULL; mt = mt->next) 724 if (m == mt->m) 725 return (mt->mntonname); 726 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 727 warnx("can't read mount table at %p", (void *)m); 728 return (NULL); 729 } 730 if ((mt = malloc(sizeof (struct mtab))) == NULL) 731 err(1, NULL); 732 mt->m = m; 733 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 734 mt->next = mhead; 735 mhead = mt; 736 return (mt->mntonname); 737 } 738 739 void 740 pipetrans(struct pipe *pi, int i, int flag) 741 { 742 struct pipe pip; 743 char rw[3]; 744 745 PREFIX(i); 746 747 /* fill in socket */ 748 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) { 749 dprintf(stderr, "can't read pipe at %p\n", (void *)pi); 750 goto bad; 751 } 752 753 printf("* pipe %8lx <-> %8lx", (u_long)pi, (u_long)pip.pipe_peer); 754 printf(" %6d", (int)pip.pipe_buffer.cnt); 755 rw[0] = '\0'; 756 if (flag & FREAD) 757 strcat(rw, "r"); 758 if (flag & FWRITE) 759 strcat(rw, "w"); 760 printf(" %2s", rw); 761 putchar('\n'); 762 return; 763 764 bad: 765 printf("* error\n"); 766 } 767 768 void 769 socktrans(struct socket *sock, int i) 770 { 771 static const char *stypename[] = { 772 "unused", /* 0 */ 773 "stream", /* 1 */ 774 "dgram", /* 2 */ 775 "raw", /* 3 */ 776 "rdm", /* 4 */ 777 "seqpak" /* 5 */ 778 }; 779 #define STYPEMAX 5 780 struct socket so; 781 struct protosw proto; 782 struct domain dom; 783 struct inpcb inpcb; 784 struct unpcb unpcb; 785 int len; 786 char dname[32]; 787 788 PREFIX(i); 789 790 /* fill in socket */ 791 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 792 dprintf(stderr, "can't read sock at %p\n", (void *)sock); 793 goto bad; 794 } 795 796 /* fill in protosw entry */ 797 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 798 dprintf(stderr, "can't read protosw at %p", 799 (void *)so.so_proto); 800 goto bad; 801 } 802 803 /* fill in domain */ 804 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 805 dprintf(stderr, "can't read domain at %p\n", 806 (void *)proto.pr_domain); 807 goto bad; 808 } 809 810 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 811 sizeof(dname) - 1)) < 0) { 812 dprintf(stderr, "can't read domain name at %p\n", 813 (void *)dom.dom_name); 814 dname[0] = '\0'; 815 } 816 else 817 dname[len] = '\0'; 818 819 if ((u_short)so.so_type > STYPEMAX) 820 printf("* %s ?%d", dname, so.so_type); 821 else 822 printf("* %s %s", dname, stypename[so.so_type]); 823 824 /* 825 * protocol specific formatting 826 * 827 * Try to find interesting things to print. For tcp, the interesting 828 * thing is the address of the tcpcb, for udp and others, just the 829 * inpcb (socket pcb). For unix domain, its the address of the socket 830 * pcb and the address of the connected pcb (if connected). Otherwise 831 * just print the protocol number and address of the socket itself. 832 * The idea is not to duplicate netstat, but to make available enough 833 * information for further analysis. 834 */ 835 switch(dom.dom_family) { 836 case AF_INET: 837 case AF_INET6: 838 getinetproto(proto.pr_protocol); 839 if (proto.pr_protocol == IPPROTO_TCP ) { 840 if (so.so_pcb) { 841 if (kvm_read(kd, (u_long)so.so_pcb, 842 (char *)&inpcb, sizeof(struct inpcb)) 843 != sizeof(struct inpcb)) { 844 dprintf(stderr, 845 "can't read inpcb at %p\n", 846 (void *)so.so_pcb); 847 goto bad; 848 } 849 printf(" %lx", (u_long)inpcb.inp_ppcb); 850 } 851 } 852 else if (so.so_pcb) 853 printf(" %lx", (u_long)so.so_pcb); 854 break; 855 case AF_UNIX: 856 /* print address of pcb and connected pcb */ 857 if (so.so_pcb) { 858 printf(" %lx", (u_long)so.so_pcb); 859 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 860 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 861 dprintf(stderr, "can't read unpcb at %p\n", 862 (void *)so.so_pcb); 863 goto bad; 864 } 865 if (unpcb.unp_conn) { 866 char shoconn[4], *cp; 867 868 cp = shoconn; 869 if (!(so.so_rcv.sb_state & SBS_CANTRCVMORE)) 870 *cp++ = '<'; 871 *cp++ = '-'; 872 if (!(so.so_snd.sb_state & SBS_CANTSENDMORE)) 873 *cp++ = '>'; 874 *cp = '\0'; 875 printf(" %s %lx", shoconn, 876 (u_long)unpcb.unp_conn); 877 } 878 } 879 break; 880 default: 881 /* print protocol number and socket address */ 882 printf(" %d %lx", proto.pr_protocol, (u_long)sock); 883 } 884 printf("\n"); 885 return; 886 bad: 887 printf("* error\n"); 888 } 889 890 891 /* 892 * Read the cdev structure in the kernel in order to work out the 893 * associated dev_t 894 */ 895 dev_t 896 dev2udev(struct cdev *dev) 897 { 898 struct cdev_priv priv; 899 900 if (KVM_READ(cdev2priv(dev), &priv, sizeof priv)) { 901 return ((dev_t)priv.cdp_inode); 902 } else { 903 dprintf(stderr, "can't convert cdev *%p to a dev_t\n", dev); 904 return -1; 905 } 906 } 907 908 /* 909 * getinetproto -- 910 * print name of protocol number 911 */ 912 void 913 getinetproto(int number) 914 { 915 static int isopen; 916 struct protoent *pe; 917 918 if (!isopen) 919 setprotoent(++isopen); 920 if ((pe = getprotobynumber(number)) != NULL) 921 printf(" %s", pe->p_name); 922 else 923 printf(" %d", number); 924 } 925 926 int 927 getfname(const char *filename) 928 { 929 struct stat statbuf; 930 DEVS *cur; 931 932 if (stat(filename, &statbuf)) { 933 warn("%s", filename); 934 return(0); 935 } 936 if ((cur = malloc(sizeof(DEVS))) == NULL) 937 err(1, NULL); 938 cur->next = devs; 939 devs = cur; 940 941 cur->ino = statbuf.st_ino; 942 cur->fsid = statbuf.st_dev; 943 cur->name = filename; 944 return(1); 945 } 946 947 #ifdef ZFS 948 void * 949 getvnodedata(struct vnode *vp) 950 { 951 return (vp->v_data); 952 } 953 954 struct mount * 955 getvnodemount(struct vnode *vp) 956 { 957 return (vp->v_mount); 958 } 959 #endif 960 961 void 962 usage(void) 963 { 964 (void)fprintf(stderr, 965 "usage: fstat [-fmnv] [-M core] [-N system] [-p pid] [-u user] [file ...]\n"); 966 exit(1); 967 } 968