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 static const char rcsid[] = 45 "$FreeBSD: src/usr.bin/fstat/fstat.c,v 1.21.2.7 2001/11/21 10:49:37 dwmalone Exp $"; 46 #endif /* not lint */ 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 #include <sys/conf.h> 65 #define _KERNEL 66 #include <sys/file.h> 67 #include <ufs/ufs/quota.h> 68 #include <ufs/ufs/inode.h> 69 #include <sys/mount.h> 70 #undef _KERNEL 71 #include <nfs/nfsproto.h> 72 #include <nfs/rpcv2.h> 73 #include <nfs/nfs.h> 74 #include <nfs/nfsnode.h> 75 76 77 #include <vm/vm.h> 78 #include <vm/vm_map.h> 79 #include <vm/vm_object.h> 80 81 #include <net/route.h> 82 #include <netinet/in.h> 83 #include <netinet/in_systm.h> 84 #include <netinet/ip.h> 85 #include <netinet/in_pcb.h> 86 87 #include <ctype.h> 88 #include <err.h> 89 #include <fcntl.h> 90 #include <kvm.h> 91 #include <limits.h> 92 #include <nlist.h> 93 #include <paths.h> 94 #include <pwd.h> 95 #include <stdio.h> 96 #include <stdlib.h> 97 #include <string.h> 98 #include <unistd.h> 99 #include <netdb.h> 100 101 #include "fstat.h" 102 103 #define TEXT -1 104 #define CDIR -2 105 #define RDIR -3 106 #define TRACE -4 107 #define MMAP -5 108 109 DEVS *devs; 110 111 #ifdef notdef 112 struct nlist nl[] = { 113 { "" }, 114 }; 115 #endif 116 117 int fsflg, /* show files on same filesystem as file(s) argument */ 118 pflg, /* show files open by a particular pid */ 119 uflg; /* show files open by a particular (effective) user */ 120 int checkfile; /* true if restricting to particular files or filesystems */ 121 int nflg; /* (numerical) display f.s. and rdev as dev_t */ 122 int vflg; /* display errors in locating kernel data objects etc... */ 123 int mflg; /* include memory-mapped files */ 124 125 126 struct file **ofiles; /* buffer of pointers to file structures */ 127 int maxfiles; 128 #define ALLOC_OFILES(d) \ 129 if ((d) > maxfiles) { \ 130 free(ofiles); \ 131 ofiles = malloc((d) * sizeof(struct file *)); \ 132 if (ofiles == NULL) { \ 133 err(1, NULL); \ 134 } \ 135 maxfiles = (d); \ 136 } 137 138 kvm_t *kd; 139 140 void dofiles __P((struct kinfo_proc *kp)); 141 void dommap __P((struct kinfo_proc *kp)); 142 void vtrans __P((struct vnode *vp, int i, int flag)); 143 int ufs_filestat __P((struct vnode *vp, struct filestat *fsp)); 144 int nfs_filestat __P((struct vnode *vp, struct filestat *fsp)); 145 char *getmnton __P((struct mount *m)); 146 void pipetrans __P((struct pipe *pi, int i, int flag)); 147 void socktrans __P((struct socket *sock, int i)); 148 void getinetproto __P((int number)); 149 int getfname __P((char *filename)); 150 void usage __P((void)); 151 152 153 int 154 main(argc, argv) 155 int argc; 156 char **argv; 157 { 158 register struct passwd *passwd; 159 struct kinfo_proc *p, *plast; 160 int arg, ch, what; 161 char *memf, *nlistf; 162 char buf[_POSIX2_LINE_MAX]; 163 int cnt; 164 165 arg = 0; 166 what = KERN_PROC_ALL; 167 nlistf = memf = NULL; 168 while ((ch = getopt(argc, argv, "fmnp:u:vN:M:")) != -1) 169 switch((char)ch) { 170 case 'f': 171 fsflg = 1; 172 break; 173 case 'M': 174 memf = optarg; 175 break; 176 case 'N': 177 nlistf = optarg; 178 break; 179 case 'm': 180 mflg = 1; 181 break; 182 case 'n': 183 nflg = 1; 184 break; 185 case 'p': 186 if (pflg++) 187 usage(); 188 if (!isdigit(*optarg)) { 189 warnx("-p requires a process id"); 190 usage(); 191 } 192 what = KERN_PROC_PID; 193 arg = atoi(optarg); 194 break; 195 case 'u': 196 if (uflg++) 197 usage(); 198 if (!(passwd = getpwnam(optarg))) 199 errx(1, "%s: unknown uid", optarg); 200 what = KERN_PROC_UID; 201 arg = passwd->pw_uid; 202 break; 203 case 'v': 204 vflg = 1; 205 break; 206 case '?': 207 default: 208 usage(); 209 } 210 211 if (*(argv += optind)) { 212 for (; *argv; ++argv) { 213 if (getfname(*argv)) 214 checkfile = 1; 215 } 216 if (!checkfile) /* file(s) specified, but none accessable */ 217 exit(1); 218 } 219 220 ALLOC_OFILES(256); /* reserve space for file pointers */ 221 222 if (fsflg && !checkfile) { 223 /* -f with no files means use wd */ 224 if (getfname(".") == 0) 225 exit(1); 226 checkfile = 1; 227 } 228 229 /* 230 * Discard setgid privileges if not the running kernel so that bad 231 * guys can't print interesting stuff from kernel memory. 232 */ 233 if (nlistf != NULL || memf != NULL) 234 setgid(getgid()); 235 236 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) 237 errx(1, "%s", buf); 238 #ifdef notdef 239 if (kvm_nlist(kd, nl) != 0) 240 errx(1, "no namelist: %s", kvm_geterr(kd)); 241 #endif 242 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) 243 errx(1, "%s", kvm_geterr(kd)); 244 if (nflg) 245 printf("%s", 246 "USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 247 else 248 printf("%s", 249 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 250 if (checkfile && fsflg == 0) 251 printf(" NAME\n"); 252 else 253 putchar('\n'); 254 255 for (plast = &p[cnt]; p < plast; ++p) { 256 if (p->kp_proc.p_stat == SZOMB) 257 continue; 258 dofiles(p); 259 if (mflg) 260 dommap(p); 261 } 262 exit(0); 263 } 264 265 char *Uname, *Comm; 266 int Pid; 267 268 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 269 switch(i) { \ 270 case TEXT: \ 271 printf(" text"); \ 272 break; \ 273 case CDIR: \ 274 printf(" wd"); \ 275 break; \ 276 case RDIR: \ 277 printf(" root"); \ 278 break; \ 279 case TRACE: \ 280 printf(" tr"); \ 281 break; \ 282 case MMAP: \ 283 printf(" mmap"); \ 284 break; \ 285 default: \ 286 printf(" %4d", i); \ 287 break; \ 288 } 289 290 /* 291 * print open files attributed to this process 292 */ 293 void 294 dofiles(kp) 295 struct kinfo_proc *kp; 296 { 297 int i; 298 struct file file; 299 struct filedesc0 filed0; 300 #define filed filed0.fd_fd 301 struct proc *p = &kp->kp_proc; 302 struct eproc *ep = &kp->kp_eproc; 303 304 Uname = user_from_uid(ep->e_ucred.cr_uid, 0); 305 Pid = p->p_pid; 306 Comm = p->p_comm; 307 308 if (p->p_fd == NULL) 309 return; 310 if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) { 311 dprintf(stderr, "can't read filedesc at %p for pid %d\n", 312 (void *)p->p_fd, Pid); 313 return; 314 } 315 /* 316 * root directory vnode, if one 317 */ 318 if (filed.fd_rdir) 319 vtrans(filed.fd_rdir, RDIR, FREAD); 320 /* 321 * current working directory vnode 322 */ 323 vtrans(filed.fd_cdir, CDIR, FREAD); 324 /* 325 * ktrace vnode, if one 326 */ 327 if (p->p_tracep) 328 vtrans(p->p_tracep, TRACE, FREAD|FWRITE); 329 /* 330 * text vnode, if one 331 */ 332 if (p->p_textvp) 333 vtrans(p->p_textvp, TEXT, FREAD); 334 /* 335 * open files 336 */ 337 #define FPSIZE (sizeof (struct file *)) 338 ALLOC_OFILES(filed.fd_lastfile+1); 339 if (filed.fd_nfiles > NDFILE) { 340 if (!KVM_READ(filed.fd_ofiles, ofiles, 341 (filed.fd_lastfile+1) * FPSIZE)) { 342 dprintf(stderr, 343 "can't read file structures at %p for pid %d\n", 344 (void *)filed.fd_ofiles, Pid); 345 return; 346 } 347 } else 348 bcopy(filed0.fd_dfiles, ofiles, (filed.fd_lastfile+1) * FPSIZE); 349 for (i = 0; i <= filed.fd_lastfile; i++) { 350 if (ofiles[i] == NULL) 351 continue; 352 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) { 353 dprintf(stderr, "can't read file %d at %p for pid %d\n", 354 i, (void *)ofiles[i], Pid); 355 continue; 356 } 357 if (file.f_type == DTYPE_VNODE) 358 vtrans((struct vnode *)file.f_data, i, file.f_flag); 359 else if (file.f_type == DTYPE_SOCKET) { 360 if (checkfile == 0) 361 socktrans((struct socket *)file.f_data, i); 362 } 363 #ifdef DTYPE_PIPE 364 else if (file.f_type == DTYPE_PIPE) { 365 if (checkfile == 0) 366 pipetrans((struct pipe *)file.f_data, i, 367 file.f_flag); 368 } 369 #endif 370 #ifdef DTYPE_FIFO 371 else if (file.f_type == DTYPE_FIFO) { 372 if (checkfile == 0) 373 vtrans((struct vnode *)file.f_data, i, 374 file.f_flag); 375 } 376 #endif 377 else { 378 dprintf(stderr, 379 "unknown file type %d for file %d of pid %d\n", 380 file.f_type, i, Pid); 381 } 382 } 383 } 384 385 void 386 dommap(kp) 387 struct kinfo_proc *kp; 388 { 389 struct proc *p = &kp->kp_proc; 390 struct vmspace vmspace; 391 vm_map_t map; 392 struct vm_map_entry entry; 393 vm_map_entry_t entryp; 394 struct vm_object object; 395 vm_object_t objp; 396 int prot, fflags; 397 398 if (!KVM_READ(p->p_vmspace, &vmspace, sizeof(vmspace))) { 399 dprintf(stderr, "can't read vmspace at %p for pid %d\n", 400 (void *)p->p_vmspace, Pid); 401 return; 402 } 403 404 map = &vmspace.vm_map; 405 406 for (entryp = map->header.next; entryp != &p->p_vmspace->vm_map.header; 407 entryp = entry.next) { 408 if (!KVM_READ(entryp, &entry, sizeof(entry))) { 409 dprintf(stderr, 410 "can't read vm_map_entry at %p for pid %d\n", 411 (void *)entryp, Pid); 412 return; 413 } 414 415 if (entry.eflags & MAP_ENTRY_IS_SUB_MAP) 416 continue; 417 418 if ((objp = entry.object.vm_object) == NULL) 419 continue; 420 421 for (; objp; objp = object.backing_object) { 422 if (!KVM_READ(objp, &object, sizeof(object))) { 423 dprintf(stderr, 424 "can't read vm_object at %p for pid %d\n", 425 (void *)objp, Pid); 426 return; 427 } 428 } 429 430 prot = entry.protection; 431 fflags = (prot & VM_PROT_READ ? FREAD : 0) | 432 (prot & VM_PROT_WRITE ? FWRITE : 0); 433 434 switch (object.type) { 435 case OBJT_VNODE: 436 vtrans((struct vnode *)object.handle, MMAP, fflags); 437 break; 438 default: 439 break; 440 } 441 } 442 } 443 444 void 445 vtrans(vp, i, flag) 446 struct vnode *vp; 447 int i; 448 int flag; 449 { 450 struct vnode vn; 451 struct filestat fst; 452 char rw[3], mode[15]; 453 char *badtype = NULL, *filename, *getmnton(); 454 455 filename = badtype = NULL; 456 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 457 dprintf(stderr, "can't read vnode at %p for pid %d\n", 458 (void *)vp, Pid); 459 return; 460 } 461 if (vn.v_type == VNON || vn.v_tag == VT_NON) 462 badtype = "none"; 463 else if (vn.v_type == VBAD) 464 badtype = "bad"; 465 else 466 switch (vn.v_tag) { 467 case VT_UFS: 468 if (!ufs_filestat(&vn, &fst)) 469 badtype = "error"; 470 break; 471 case VT_MFS: 472 if (!ufs_filestat(&vn, &fst)) 473 badtype = "error"; 474 break; 475 case VT_NFS: 476 if (!nfs_filestat(&vn, &fst)) 477 badtype = "error"; 478 break; 479 480 case VT_MSDOSFS: 481 if (!msdosfs_filestat(&vn, &fst)) 482 badtype = "error"; 483 break; 484 485 case VT_ISOFS: 486 if (!isofs_filestat(&vn, &fst)) 487 badtype = "error"; 488 break; 489 490 default: { 491 static char unknown[10]; 492 sprintf(badtype = unknown, "?(%x)", vn.v_tag); 493 break;; 494 } 495 } 496 if (checkfile) { 497 int fsmatch = 0; 498 register DEVS *d; 499 500 if (badtype) 501 return; 502 for (d = devs; d != NULL; d = d->next) 503 if (d->fsid == fst.fsid) { 504 fsmatch = 1; 505 if (d->ino == fst.fileid) { 506 filename = d->name; 507 break; 508 } 509 } 510 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 511 return; 512 } 513 PREFIX(i); 514 if (badtype) { 515 (void)printf(" - - %10s -\n", badtype); 516 return; 517 } 518 if (nflg) 519 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 520 else 521 (void)printf(" %-8s", getmnton(vn.v_mount)); 522 if (nflg) 523 (void)sprintf(mode, "%o", fst.mode); 524 else 525 strmode(fst.mode, mode); 526 (void)printf(" %6ld %10s", fst.fileid, mode); 527 switch (vn.v_type) { 528 case VBLK: 529 case VCHR: { 530 char *name; 531 532 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 533 S_IFCHR : S_IFBLK)) == NULL)) 534 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 535 else 536 printf(" %6s", name); 537 break; 538 } 539 default: 540 printf(" %6lu", fst.size); 541 } 542 rw[0] = '\0'; 543 if (flag & FREAD) 544 strcat(rw, "r"); 545 if (flag & FWRITE) 546 strcat(rw, "w"); 547 printf(" %2s", rw); 548 if (filename && !fsflg) 549 printf(" %s", filename); 550 putchar('\n'); 551 } 552 553 int 554 ufs_filestat(vp, fsp) 555 struct vnode *vp; 556 struct filestat *fsp; 557 { 558 struct inode inode; 559 560 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 561 dprintf(stderr, "can't read inode at %p for pid %d\n", 562 (void *)VTOI(vp), Pid); 563 return 0; 564 } 565 /* 566 * The st_dev from stat(2) is a udev_t. These kernel structures 567 * contain dev_t structures. We need to convert to udev to make 568 * comparisons 569 */ 570 fsp->fsid = dev2udev(inode.i_dev); 571 fsp->fileid = (long)inode.i_number; 572 fsp->mode = (mode_t)inode.i_mode; 573 fsp->size = (u_long)inode.i_size; 574 fsp->rdev = inode.i_rdev; 575 576 return 1; 577 } 578 579 int 580 nfs_filestat(vp, fsp) 581 struct vnode *vp; 582 struct filestat *fsp; 583 { 584 struct nfsnode nfsnode; 585 register mode_t mode; 586 587 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 588 dprintf(stderr, "can't read nfsnode at %p for pid %d\n", 589 (void *)VTONFS(vp), Pid); 590 return 0; 591 } 592 fsp->fsid = nfsnode.n_vattr.va_fsid; 593 fsp->fileid = nfsnode.n_vattr.va_fileid; 594 fsp->size = nfsnode.n_size; 595 fsp->rdev = nfsnode.n_vattr.va_rdev; 596 mode = (mode_t)nfsnode.n_vattr.va_mode; 597 switch (vp->v_type) { 598 case VREG: 599 mode |= S_IFREG; 600 break; 601 case VDIR: 602 mode |= S_IFDIR; 603 break; 604 case VBLK: 605 mode |= S_IFBLK; 606 break; 607 case VCHR: 608 mode |= S_IFCHR; 609 break; 610 case VLNK: 611 mode |= S_IFLNK; 612 break; 613 case VSOCK: 614 mode |= S_IFSOCK; 615 break; 616 case VFIFO: 617 mode |= S_IFIFO; 618 break; 619 case VNON: 620 case VBAD: 621 return 0; 622 }; 623 fsp->mode = mode; 624 625 return 1; 626 } 627 628 629 char * 630 getmnton(m) 631 struct mount *m; 632 { 633 static struct mount mount; 634 static struct mtab { 635 struct mtab *next; 636 struct mount *m; 637 char mntonname[MNAMELEN]; 638 } *mhead = NULL; 639 register struct mtab *mt; 640 641 for (mt = mhead; mt != NULL; mt = mt->next) 642 if (m == mt->m) 643 return (mt->mntonname); 644 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 645 warnx("can't read mount table at %p", (void *)m); 646 return (NULL); 647 } 648 if ((mt = malloc(sizeof (struct mtab))) == NULL) 649 err(1, NULL); 650 mt->m = m; 651 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 652 mt->next = mhead; 653 mhead = mt; 654 return (mt->mntonname); 655 } 656 657 void 658 pipetrans(pi, i, flag) 659 struct pipe *pi; 660 int i; 661 int flag; 662 { 663 struct pipe pip; 664 char rw[3]; 665 666 PREFIX(i); 667 668 /* fill in socket */ 669 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) { 670 dprintf(stderr, "can't read pipe at %p\n", (void *)pi); 671 goto bad; 672 } 673 674 printf("* pipe %8lx <-> %8lx", (u_long)pi, (u_long)pip.pipe_peer); 675 printf(" %6d", (int)pip.pipe_buffer.cnt); 676 rw[0] = '\0'; 677 if (flag & FREAD) 678 strcat(rw, "r"); 679 if (flag & FWRITE) 680 strcat(rw, "w"); 681 printf(" %2s", rw); 682 putchar('\n'); 683 return; 684 685 bad: 686 printf("* error\n"); 687 } 688 689 void 690 socktrans(sock, i) 691 struct socket *sock; 692 int i; 693 { 694 static char *stypename[] = { 695 "unused", /* 0 */ 696 "stream", /* 1 */ 697 "dgram", /* 2 */ 698 "raw", /* 3 */ 699 "rdm", /* 4 */ 700 "seqpak" /* 5 */ 701 }; 702 #define STYPEMAX 5 703 struct socket so; 704 struct protosw proto; 705 struct domain dom; 706 struct inpcb inpcb; 707 struct unpcb unpcb; 708 int len; 709 char dname[32], *strcpy(); 710 711 PREFIX(i); 712 713 /* fill in socket */ 714 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 715 dprintf(stderr, "can't read sock at %p\n", (void *)sock); 716 goto bad; 717 } 718 719 /* fill in protosw entry */ 720 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 721 dprintf(stderr, "can't read protosw at %p", 722 (void *)so.so_proto); 723 goto bad; 724 } 725 726 /* fill in domain */ 727 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 728 dprintf(stderr, "can't read domain at %p\n", 729 (void *)proto.pr_domain); 730 goto bad; 731 } 732 733 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 734 sizeof(dname) - 1)) < 0) { 735 dprintf(stderr, "can't read domain name at %p\n", 736 (void *)dom.dom_name); 737 dname[0] = '\0'; 738 } 739 else 740 dname[len] = '\0'; 741 742 if ((u_short)so.so_type > STYPEMAX) 743 printf("* %s ?%d", dname, so.so_type); 744 else 745 printf("* %s %s", dname, stypename[so.so_type]); 746 747 /* 748 * protocol specific formatting 749 * 750 * Try to find interesting things to print. For tcp, the interesting 751 * thing is the address of the tcpcb, for udp and others, just the 752 * inpcb (socket pcb). For unix domain, its the address of the socket 753 * pcb and the address of the connected pcb (if connected). Otherwise 754 * just print the protocol number and address of the socket itself. 755 * The idea is not to duplicate netstat, but to make available enough 756 * information for further analysis. 757 */ 758 switch(dom.dom_family) { 759 case AF_INET: 760 case AF_INET6: 761 getinetproto(proto.pr_protocol); 762 if (proto.pr_protocol == IPPROTO_TCP ) { 763 if (so.so_pcb) { 764 if (kvm_read(kd, (u_long)so.so_pcb, 765 (char *)&inpcb, sizeof(struct inpcb)) 766 != sizeof(struct inpcb)) { 767 dprintf(stderr, 768 "can't read inpcb at %p\n", 769 (void *)so.so_pcb); 770 goto bad; 771 } 772 printf(" %lx", (u_long)inpcb.inp_ppcb); 773 } 774 } 775 else if (so.so_pcb) 776 printf(" %lx", (u_long)so.so_pcb); 777 break; 778 case AF_UNIX: 779 /* print address of pcb and connected pcb */ 780 if (so.so_pcb) { 781 printf(" %lx", (u_long)so.so_pcb); 782 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 783 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 784 dprintf(stderr, "can't read unpcb at %p\n", 785 (void *)so.so_pcb); 786 goto bad; 787 } 788 if (unpcb.unp_conn) { 789 char shoconn[4], *cp; 790 791 cp = shoconn; 792 if (!(so.so_state & SS_CANTRCVMORE)) 793 *cp++ = '<'; 794 *cp++ = '-'; 795 if (!(so.so_state & SS_CANTSENDMORE)) 796 *cp++ = '>'; 797 *cp = '\0'; 798 printf(" %s %lx", shoconn, 799 (u_long)unpcb.unp_conn); 800 } 801 } 802 break; 803 default: 804 /* print protocol number and socket address */ 805 printf(" %d %lx", proto.pr_protocol, (u_long)sock); 806 } 807 printf("\n"); 808 return; 809 bad: 810 printf("* error\n"); 811 } 812 813 814 /* 815 * Read the specinfo structure in the kernel (as pointed to by a dev_t) 816 * in order to work out the associated udev_t 817 */ 818 udev_t 819 dev2udev(dev) 820 dev_t dev; 821 { 822 struct specinfo si; 823 824 if (KVM_READ(dev, &si, sizeof si)) { 825 return si.si_udev; 826 } else { 827 dprintf(stderr, "can't convert dev_t %x to a udev_t\n", dev); 828 return -1; 829 } 830 } 831 832 /* 833 * getinetproto -- 834 * print name of protocol number 835 */ 836 void 837 getinetproto(number) 838 int number; 839 { 840 static int isopen; 841 register struct protoent *pe; 842 843 if (!isopen) 844 setprotoent(++isopen); 845 if ((pe = getprotobynumber(number)) != NULL) 846 printf(" %s", pe->p_name); 847 else 848 printf(" %d", number); 849 } 850 851 int 852 getfname(filename) 853 char *filename; 854 { 855 struct stat statbuf; 856 DEVS *cur; 857 858 if (stat(filename, &statbuf)) { 859 warn("%s", filename); 860 return(0); 861 } 862 if ((cur = malloc(sizeof(DEVS))) == NULL) 863 err(1, NULL); 864 cur->next = devs; 865 devs = cur; 866 867 cur->ino = statbuf.st_ino; 868 cur->fsid = statbuf.st_dev; 869 cur->name = filename; 870 return(1); 871 } 872 873 void 874 usage() 875 { 876 (void)fprintf(stderr, 877 "usage: fstat [-fmnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 878 exit(1); 879 } 880