fstat.c revision 103325
1139749Simp/*- 2116258Sharti * Copyright (c) 1988, 1993 3116258Sharti * The Regents of the University of California. All rights reserved. 4116258Sharti * 5116258Sharti * Redistribution and use in source and binary forms, with or without 6116258Sharti * modification, are permitted provided that the following conditions 7116258Sharti * are met: 8116258Sharti * 1. Redistributions of source code must retain the above copyright 9116258Sharti * notice, this list of conditions and the following disclaimer. 10116258Sharti * 2. Redistributions in binary form must reproduce the above copyright 11116258Sharti * notice, this list of conditions and the following disclaimer in the 12116258Sharti * documentation and/or other materials provided with the distribution. 13116258Sharti * 3. All advertising materials mentioning features or use of this software 14116258Sharti * must display the following acknowledgement: 15116258Sharti * This product includes software developed by the University of 16116258Sharti * California, Berkeley and its contributors. 17116258Sharti * 4. Neither the name of the University nor the names of its contributors 18116258Sharti * may be used to endorse or promote products derived from this software 19116258Sharti * without specific prior written permission. 20116258Sharti * 21116258Sharti * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22116258Sharti * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23116258Sharti * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24116258Sharti * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25116258Sharti * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26116258Sharti * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27116258Sharti * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28116258Sharti * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29116258Sharti * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30116258Sharti * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31116258Sharti * SUCH DAMAGE. 32116258Sharti */ 33116258Sharti 34116258Sharti#ifndef lint 35116258Shartistatic const char copyright[] = 36116258Sharti"@(#) Copyright (c) 1988, 1993\n\ 37116258Sharti The Regents of the University of California. All rights reserved.\n"; 38116258Sharti#endif /* not lint */ 39116258Sharti 40116258Sharti#ifndef lint 41116258Sharti#if 0 42116258Shartistatic char sccsid[] = "@(#)fstat.c 8.3 (Berkeley) 5/2/95"; 43116258Sharti#endif 44116258Sharti#endif /* not lint */ 45116258Sharti#include <sys/cdefs.h> 46116258Sharti__FBSDID("$FreeBSD: head/usr.bin/fstat/fstat.c 103325 2002-09-14 18:51:10Z njl $"); 47116258Sharti 48116258Sharti#include <sys/param.h> 49116258Sharti#include <sys/time.h> 50116258Sharti#include <sys/proc.h> 51116258Sharti#include <sys/user.h> 52116258Sharti#include <sys/stat.h> 53142384Sharti#include <sys/vnode.h> 54116258Sharti#include <sys/socket.h> 55116258Sharti#include <sys/socketvar.h> 56142384Sharti#include <sys/domain.h> 57116258Sharti#include <sys/protosw.h> 58116258Sharti#include <sys/un.h> 59116258Sharti#include <sys/unpcb.h> 60116258Sharti#include <sys/sysctl.h> 61116258Sharti#include <sys/filedesc.h> 62116258Sharti#include <sys/queue.h> 63116258Sharti#include <sys/pipe.h> 64116258Sharti#define _KERNEL 65116258Sharti#include <sys/conf.h> 66116258Sharti#include <sys/file.h> 67116258Sharti#include <sys/mount.h> 68116258Sharti#include <ufs/ufs/quota.h> 69116258Sharti#include <ufs/ufs/inode.h> 70116258Sharti#include <fs/devfs/devfs.h> 71116258Sharti#undef _KERNEL 72116258Sharti#include <nfs/nfsproto.h> 73116258Sharti#include <nfs/rpcv2.h> 74116258Sharti#include <nfsclient/nfs.h> 75116258Sharti#include <nfsclient/nfsnode.h> 76116258Sharti 77116258Sharti 78116258Sharti#include <vm/vm.h> 79116258Sharti#include <vm/vm_map.h> 80116258Sharti#include <vm/vm_object.h> 81116258Sharti 82116258Sharti#include <net/route.h> 83116258Sharti#include <netinet/in.h> 84116258Sharti#include <netinet/in_systm.h> 85116258Sharti#include <netinet/ip.h> 86116258Sharti#include <netinet/in_pcb.h> 87116258Sharti 88116258Sharti#include <ctype.h> 89116258Sharti#include <err.h> 90117546Sharti#include <fcntl.h> 91142384Sharti#include <kvm.h> 92116258Sharti#include <limits.h> 93117552Sharti#include <nlist.h> 94117552Sharti#include <paths.h> 95117552Sharti#include <pwd.h> 96117552Sharti#include <stdio.h> 97117552Sharti#include <stdlib.h> 98117552Sharti#include <string.h> 99117552Sharti#include <unistd.h> 100117552Sharti#include <netdb.h> 101117552Sharti 102117552Sharti#include "fstat.h" 103117552Sharti 104117552Sharti#define TEXT -1 105117552Sharti#define CDIR -2 106117552Sharti#define RDIR -3 107117552Sharti#define TRACE -4 108117552Sharti#define MMAP -5 109117552Sharti 110117552ShartiDEVS *devs; 111117552Sharti 112117552Sharti#ifdef notdef 113116258Shartistruct nlist nl[] = { 114116258Sharti { "" }, 115116258Sharti}; 116116258Sharti#endif 117116258Sharti 118116258Shartiint fsflg, /* show files on same filesystem as file(s) argument */ 119116258Sharti pflg, /* show files open by a particular pid */ 120116258Sharti uflg; /* show files open by a particular (effective) user */ 121116258Shartiint checkfile; /* true if restricting to particular files or filesystems */ 122116258Shartiint nflg; /* (numerical) display f.s. and rdev as dev_t */ 123116258Shartiint vflg; /* display errors in locating kernel data objects etc... */ 124116258Shartiint mflg; /* include memory-mapped files */ 125116258Sharti 126116258Sharti 127116258Shartistruct file **ofiles; /* buffer of pointers to file structures */ 128116258Shartiint maxfiles; 129116258Sharti#define ALLOC_OFILES(d) \ 130116258Sharti if ((d) > maxfiles) { \ 131116258Sharti free(ofiles); \ 132116258Sharti ofiles = malloc((d) * sizeof(struct file *)); \ 133116258Sharti if (ofiles == NULL) { \ 134116258Sharti err(1, NULL); \ 135116258Sharti } \ 136116258Sharti maxfiles = (d); \ 137116258Sharti } 138116258Sharti 139116258Shartichar *memf, *nlistf; 140116258Shartikvm_t *kd; 141116258Sharti 142117552Shartistatic void fstat_kvm(int, int); 143116258Shartistatic void fstat_sysctl(int, int); 144116258Shartivoid dofiles(struct kinfo_proc *kp); 145116258Shartivoid dommap(struct kinfo_proc *kp); 146116258Shartivoid vtrans(struct vnode *vp, int i, int flag); 147116258Shartiint ufs_filestat(struct vnode *vp, struct filestat *fsp); 148116258Shartiint nfs_filestat(struct vnode *vp, struct filestat *fsp); 149116258Shartiint devfs_filestat(struct vnode *vp, struct filestat *fsp); 150116258Shartichar *getmnton(struct mount *m); 151116258Shartivoid pipetrans(struct pipe *pi, int i, int flag); 152116258Shartivoid socktrans(struct socket *sock, int i); 153116258Shartivoid getinetproto(int number); 154116258Shartiint getfname(const char *filename); 155116258Shartivoid usage(void); 156116258Sharti 157116258Sharti 158116258Shartiint 159116258Shartimain(argc, argv) 160116258Sharti int argc; 161116258Sharti char **argv; 162116258Sharti{ 163116258Sharti struct passwd *passwd; 164116258Sharti int arg, ch, what; 165116258Sharti 166116258Sharti arg = 0; 167116258Sharti what = KERN_PROC_ALL; 168116258Sharti nlistf = memf = NULL; 169116258Sharti while ((ch = getopt(argc, argv, "fmnp:u:vN:M:")) != -1) 170116258Sharti switch((char)ch) { 171116258Sharti case 'f': 172116258Sharti fsflg = 1; 173117552Sharti break; 174117552Sharti case 'M': 175117552Sharti memf = optarg; 176116258Sharti break; 177116258Sharti case 'N': 178116258Sharti nlistf = optarg; 179116258Sharti break; 180116258Sharti case 'm': 181116258Sharti mflg = 1; 182116258Sharti break; 183116258Sharti case 'n': 184116258Sharti nflg = 1; 185116258Sharti break; 186116258Sharti case 'p': 187116258Sharti if (pflg++) 188116258Sharti usage(); 189116258Sharti if (!isdigit(*optarg)) { 190116258Sharti warnx("-p requires a process id"); 191116258Sharti usage(); 192116258Sharti } 193116258Sharti what = KERN_PROC_PID; 194116258Sharti arg = atoi(optarg); 195116258Sharti break; 196116258Sharti case 'u': 197117552Sharti if (uflg++) 198116258Sharti usage(); 199116258Sharti if (!(passwd = getpwnam(optarg))) 200116258Sharti errx(1, "%s: unknown uid", optarg); 201116258Sharti what = KERN_PROC_UID; 202116258Sharti arg = passwd->pw_uid; 203116258Sharti break; 204 case 'v': 205 vflg = 1; 206 break; 207 case '?': 208 default: 209 usage(); 210 } 211 212 if (*(argv += optind)) { 213 for (; *argv; ++argv) { 214 if (getfname(*argv)) 215 checkfile = 1; 216 } 217 if (!checkfile) /* file(s) specified, but none accessable */ 218 exit(1); 219 } 220 221 if (fsflg && !checkfile) { 222 /* -f with no files means use wd */ 223 if (getfname(".") == 0) 224 exit(1); 225 checkfile = 1; 226 } 227 228 if (memf != NULL) 229 fstat_kvm(what, arg); 230 else 231 fstat_sysctl(what, arg); 232 exit(0); 233} 234 235static void 236print_header(void) 237{ 238 239 if (nflg) 240 printf("%s", 241"USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 242 else 243 printf("%s", 244"USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 245 if (checkfile && fsflg == 0) 246 printf(" NAME\n"); 247 else 248 putchar('\n'); 249} 250 251static void 252fstat_kvm(int what, int arg) 253{ 254 struct kinfo_proc *p, *plast; 255 char buf[_POSIX2_LINE_MAX]; 256 int cnt; 257 258 ALLOC_OFILES(256); /* reserve space for file pointers */ 259 260 /* 261 * Discard setgid privileges if not the running kernel so that bad 262 * guys can't print interesting stuff from kernel memory. 263 */ 264 if (nlistf != NULL || memf != NULL) 265 setgid(getgid()); 266 267 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) 268 errx(1, "%s", buf); 269 setgid(getgid()); 270#ifdef notdef 271 if (kvm_nlist(kd, nl) != 0) 272 errx(1, "no namelist: %s", kvm_geterr(kd)); 273#endif 274 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) 275 errx(1, "%s", kvm_geterr(kd)); 276 for (plast = &p[cnt]; p < plast; ++p) { 277 if (p->ki_stat == SZOMB) 278 continue; 279 dofiles(p); 280 if (mflg) 281 dommap(p); 282 } 283} 284 285static void 286fstat_sysctl(int what, int arg) 287{ 288 289 /* not yet implemented */ 290 fstat_kvm(what, arg); 291} 292 293const char *Uname, *Comm; 294int Pid; 295 296#define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 297 switch(i) { \ 298 case TEXT: \ 299 printf(" text"); \ 300 break; \ 301 case CDIR: \ 302 printf(" wd"); \ 303 break; \ 304 case RDIR: \ 305 printf(" root"); \ 306 break; \ 307 case TRACE: \ 308 printf(" tr"); \ 309 break; \ 310 case MMAP: \ 311 printf(" mmap"); \ 312 break; \ 313 default: \ 314 printf(" %4d", i); \ 315 break; \ 316 } 317 318/* 319 * print open files attributed to this process 320 */ 321void 322dofiles(kp) 323 struct kinfo_proc *kp; 324{ 325 int i; 326 struct file file; 327 struct filedesc0 filed0; 328#define filed filed0.fd_fd 329 330 Uname = user_from_uid(kp->ki_uid, 0); 331 Pid = kp->ki_pid; 332 Comm = kp->ki_comm; 333 334 if (kp->ki_fd == NULL) 335 return; 336 if (!KVM_READ(kp->ki_fd, &filed0, sizeof (filed0))) { 337 dprintf(stderr, "can't read filedesc at %p for pid %d\n", 338 (void *)kp->ki_fd, Pid); 339 return; 340 } 341 /* 342 * root directory vnode, if one 343 */ 344 if (filed.fd_rdir) 345 vtrans(filed.fd_rdir, RDIR, FREAD); 346 /* 347 * current working directory vnode 348 */ 349 vtrans(filed.fd_cdir, CDIR, FREAD); 350 /* 351 * ktrace vnode, if one 352 */ 353 if (kp->ki_tracep) 354 vtrans(kp->ki_tracep, TRACE, FREAD|FWRITE); 355 /* 356 * text vnode, if one 357 */ 358 if (kp->ki_textvp) 359 vtrans(kp->ki_textvp, TEXT, FREAD); 360 /* 361 * open files 362 */ 363#define FPSIZE (sizeof (struct file *)) 364 ALLOC_OFILES(filed.fd_lastfile+1); 365 if (filed.fd_nfiles > NDFILE) { 366 if (!KVM_READ(filed.fd_ofiles, ofiles, 367 (filed.fd_lastfile+1) * FPSIZE)) { 368 dprintf(stderr, 369 "can't read file structures at %p for pid %d\n", 370 (void *)filed.fd_ofiles, Pid); 371 return; 372 } 373 } else 374 bcopy(filed0.fd_dfiles, ofiles, (filed.fd_lastfile+1) * FPSIZE); 375 for (i = 0; i <= filed.fd_lastfile; i++) { 376 if (ofiles[i] == NULL) 377 continue; 378 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) { 379 dprintf(stderr, "can't read file %d at %p for pid %d\n", 380 i, (void *)ofiles[i], Pid); 381 continue; 382 } 383 if (file.f_type == DTYPE_VNODE) 384 vtrans((struct vnode *)file.f_data, i, file.f_flag); 385 else if (file.f_type == DTYPE_SOCKET) { 386 if (checkfile == 0) 387 socktrans((struct socket *)file.f_data, i); 388 } 389#ifdef DTYPE_PIPE 390 else if (file.f_type == DTYPE_PIPE) { 391 if (checkfile == 0) 392 pipetrans((struct pipe *)file.f_data, i, 393 file.f_flag); 394 } 395#endif 396#ifdef DTYPE_FIFO 397 else if (file.f_type == DTYPE_FIFO) { 398 if (checkfile == 0) 399 vtrans((struct vnode *)file.f_data, i, 400 file.f_flag); 401 } 402#endif 403 else { 404 dprintf(stderr, 405 "unknown file type %d for file %d of pid %d\n", 406 file.f_type, i, Pid); 407 } 408 } 409} 410 411void 412dommap(kp) 413 struct kinfo_proc *kp; 414{ 415 vm_map_t map; 416 struct vmspace vmspace; 417 struct vm_map_entry entry; 418 vm_map_entry_t entryp; 419 struct vm_object object; 420 vm_object_t objp; 421 int prot, fflags; 422 423 if (!KVM_READ(kp->ki_vmspace, &vmspace, sizeof(vmspace))) { 424 dprintf(stderr, 425 "can't read vmspace at %p for pid %d\n", 426 (void *)kp->ki_vmspace, Pid); 427 return; 428 } 429 map = &vmspace.vm_map; 430 431 for (entryp = map->header.next; 432 entryp != &kp->ki_vmspace->vm_map.header; entryp = entry.next) { 433 if (!KVM_READ(entryp, &entry, sizeof(entry))) { 434 dprintf(stderr, 435 "can't read vm_map_entry at %p for pid %d\n", 436 (void *)entryp, Pid); 437 return; 438 } 439 440 if (entry.eflags & MAP_ENTRY_IS_SUB_MAP) 441 continue; 442 443 if ((objp = entry.object.vm_object) == NULL) 444 continue; 445 446 for (; objp; objp = object.backing_object) { 447 if (!KVM_READ(objp, &object, sizeof(object))) { 448 dprintf(stderr, 449 "can't read vm_object at %p for pid %d\n", 450 (void *)objp, Pid); 451 return; 452 } 453 } 454 455 prot = entry.protection; 456 fflags = (prot & VM_PROT_READ ? FREAD : 0) | 457 (prot & VM_PROT_WRITE ? FWRITE : 0); 458 459 switch (object.type) { 460 case OBJT_VNODE: 461 vtrans((struct vnode *)object.handle, MMAP, fflags); 462 break; 463 default: 464 break; 465 } 466 } 467} 468 469void 470vtrans(vp, i, flag) 471 struct vnode *vp; 472 int i; 473 int flag; 474{ 475 struct vnode vn; 476 struct filestat fst; 477 char rw[3], mode[15], tagstr[12], *tagptr; 478 const char *badtype, *filename; 479 480 filename = badtype = NULL; 481 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 482 dprintf(stderr, "can't read vnode at %p for pid %d\n", 483 (void *)vp, Pid); 484 return; 485 } 486 if (!KVM_READ(&vp->v_tag, &tagptr, sizeof tagptr) || 487 !KVM_READ(tagptr, tagstr, sizeof tagstr)) { 488 dprintf(stderr, "can't read v_tag at %p for pid %d\n", 489 (void *)vp, Pid); 490 return; 491 } 492 tagstr[sizeof(tagstr) - 1] = '\0'; 493 if (vn.v_type == VNON) 494 badtype = "none"; 495 else if (vn.v_type == VBAD) 496 badtype = "bad"; 497 else { 498 if (!strcmp("ufs", tagstr)) { 499 if (!ufs_filestat(&vn, &fst)) 500 badtype = "error"; 501 } else if (!strcmp("devfs", tagstr)) { 502 if (!devfs_filestat(&vn, &fst)) 503 badtype = "error"; 504 } else if (!strcmp("nfs", tagstr)) { 505 if (!nfs_filestat(&vn, &fst)) 506 badtype = "error"; 507 } else if (!strcmp("msdosfs", tagstr)) { 508 if (!msdosfs_filestat(&vn, &fst)) 509 badtype = "error"; 510 } else if (!strcmp("isofs", tagstr)) { 511 if (!isofs_filestat(&vn, &fst)) 512 badtype = "error"; 513 } else { 514 static char unknown[32]; 515 snprintf(unknown, sizeof unknown, "?(%s)", tagstr); 516 badtype = unknown; 517 } 518 } 519 if (checkfile) { 520 int fsmatch = 0; 521 DEVS *d; 522 523 if (badtype) 524 return; 525 for (d = devs; d != NULL; d = d->next) 526 if (d->fsid == fst.fsid) { 527 fsmatch = 1; 528 if (d->ino == fst.fileid) { 529 filename = d->name; 530 break; 531 } 532 } 533 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 534 return; 535 } 536 PREFIX(i); 537 if (badtype) { 538 (void)printf(" - - %10s -\n", badtype); 539 return; 540 } 541 if (nflg) 542 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 543 else 544 (void)printf(" %-8s", getmnton(vn.v_mount)); 545 if (nflg) 546 (void)sprintf(mode, "%o", fst.mode); 547 else 548 strmode(fst.mode, mode); 549 (void)printf(" %6ld %10s", fst.fileid, mode); 550 switch (vn.v_type) { 551 case VBLK: 552 case VCHR: { 553 char *name; 554 555 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 556 S_IFCHR : S_IFBLK)) == NULL)) 557 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 558 else 559 printf(" %6s", name); 560 break; 561 } 562 default: 563 printf(" %6lu", fst.size); 564 } 565 rw[0] = '\0'; 566 if (flag & FREAD) 567 strcat(rw, "r"); 568 if (flag & FWRITE) 569 strcat(rw, "w"); 570 printf(" %2s", rw); 571 if (filename && !fsflg) 572 printf(" %s", filename); 573 putchar('\n'); 574} 575 576int 577ufs_filestat(vp, fsp) 578 struct vnode *vp; 579 struct filestat *fsp; 580{ 581 struct inode inode; 582 583 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 584 dprintf(stderr, "can't read inode at %p for pid %d\n", 585 (void *)VTOI(vp), Pid); 586 return 0; 587 } 588 /* 589 * The st_dev from stat(2) is a udev_t. These kernel structures 590 * contain dev_t structures. We need to convert to udev to make 591 * comparisons 592 */ 593 fsp->fsid = dev2udev(inode.i_dev); 594 fsp->fileid = (long)inode.i_number; 595 fsp->mode = (mode_t)inode.i_mode; 596 fsp->size = (u_long)inode.i_size; 597#if should_be_but_is_hard 598 fsp->rdev = inode.i_rdev; 599#else 600 fsp->rdev = 0; 601#endif 602 603 return 1; 604} 605 606int 607devfs_filestat(vp, fsp) 608 struct vnode *vp; 609 struct filestat *fsp; 610{ 611 struct devfs_dirent devfs_dirent; 612 struct mount mount; 613 struct vnode vnode; 614 615 if (!KVM_READ(vp->v_data, &devfs_dirent, sizeof (devfs_dirent))) { 616 dprintf(stderr, "can't read devfs_dirent at %p for pid %d\n", 617 (void *)vp->v_data, Pid); 618 return 0; 619 } 620 if (!KVM_READ(vp->v_mount, &mount, sizeof (mount))) { 621 dprintf(stderr, "can't read mount at %p for pid %d\n", 622 (void *)vp->v_mount, Pid); 623 return 0; 624 } 625 if (!KVM_READ(devfs_dirent.de_vnode, &vnode, sizeof (vnode))) { 626 dprintf(stderr, "can't read vnode at %p for pid %d\n", 627 (void *)devfs_dirent.de_vnode, Pid); 628 return 0; 629 } 630 fsp->fsid = (long)mount.mnt_stat.f_fsid.val[0]; 631 fsp->fileid = devfs_dirent.de_inode; 632 fsp->mode = (devfs_dirent.de_mode & ~S_IFMT) | S_IFCHR; 633 fsp->size = 0; 634 fsp->rdev = dev2udev((dev_t)vnode.v_rdev); 635 636 return 1; 637} 638 639int 640nfs_filestat(vp, fsp) 641 struct vnode *vp; 642 struct filestat *fsp; 643{ 644 struct nfsnode nfsnode; 645 mode_t mode; 646 647 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 648 dprintf(stderr, "can't read nfsnode at %p for pid %d\n", 649 (void *)VTONFS(vp), Pid); 650 return 0; 651 } 652 fsp->fsid = nfsnode.n_vattr.va_fsid; 653 fsp->fileid = nfsnode.n_vattr.va_fileid; 654 fsp->size = nfsnode.n_size; 655 fsp->rdev = nfsnode.n_vattr.va_rdev; 656 mode = (mode_t)nfsnode.n_vattr.va_mode; 657 switch (vp->v_type) { 658 case VREG: 659 mode |= S_IFREG; 660 break; 661 case VDIR: 662 mode |= S_IFDIR; 663 break; 664 case VBLK: 665 mode |= S_IFBLK; 666 break; 667 case VCHR: 668 mode |= S_IFCHR; 669 break; 670 case VLNK: 671 mode |= S_IFLNK; 672 break; 673 case VSOCK: 674 mode |= S_IFSOCK; 675 break; 676 case VFIFO: 677 mode |= S_IFIFO; 678 break; 679 case VNON: 680 case VBAD: 681 return 0; 682 }; 683 fsp->mode = mode; 684 685 return 1; 686} 687 688 689char * 690getmnton(m) 691 struct mount *m; 692{ 693 static struct mount mount; 694 static struct mtab { 695 struct mtab *next; 696 struct mount *m; 697 char mntonname[MNAMELEN]; 698 } *mhead = NULL; 699 struct mtab *mt; 700 701 for (mt = mhead; mt != NULL; mt = mt->next) 702 if (m == mt->m) 703 return (mt->mntonname); 704 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 705 warnx("can't read mount table at %p", (void *)m); 706 return (NULL); 707 } 708 if ((mt = malloc(sizeof (struct mtab))) == NULL) 709 err(1, NULL); 710 mt->m = m; 711 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 712 mt->next = mhead; 713 mhead = mt; 714 return (mt->mntonname); 715} 716 717void 718pipetrans(pi, i, flag) 719 struct pipe *pi; 720 int i; 721 int flag; 722{ 723 struct pipe pip; 724 char rw[3]; 725 726 PREFIX(i); 727 728 /* fill in socket */ 729 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) { 730 dprintf(stderr, "can't read pipe at %p\n", (void *)pi); 731 goto bad; 732 } 733 734 printf("* pipe %8lx <-> %8lx", (u_long)pi, (u_long)pip.pipe_peer); 735 printf(" %6d", (int)pip.pipe_buffer.cnt); 736 rw[0] = '\0'; 737 if (flag & FREAD) 738 strcat(rw, "r"); 739 if (flag & FWRITE) 740 strcat(rw, "w"); 741 printf(" %2s", rw); 742 putchar('\n'); 743 return; 744 745bad: 746 printf("* error\n"); 747} 748 749void 750socktrans(sock, i) 751 struct socket *sock; 752 int i; 753{ 754 static const char *stypename[] = { 755 "unused", /* 0 */ 756 "stream", /* 1 */ 757 "dgram", /* 2 */ 758 "raw", /* 3 */ 759 "rdm", /* 4 */ 760 "seqpak" /* 5 */ 761 }; 762#define STYPEMAX 5 763 struct socket so; 764 struct protosw proto; 765 struct domain dom; 766 struct inpcb inpcb; 767 struct unpcb unpcb; 768 int len; 769 char dname[32]; 770 771 PREFIX(i); 772 773 /* fill in socket */ 774 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 775 dprintf(stderr, "can't read sock at %p\n", (void *)sock); 776 goto bad; 777 } 778 779 /* fill in protosw entry */ 780 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 781 dprintf(stderr, "can't read protosw at %p", 782 (void *)so.so_proto); 783 goto bad; 784 } 785 786 /* fill in domain */ 787 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 788 dprintf(stderr, "can't read domain at %p\n", 789 (void *)proto.pr_domain); 790 goto bad; 791 } 792 793 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 794 sizeof(dname) - 1)) < 0) { 795 dprintf(stderr, "can't read domain name at %p\n", 796 (void *)dom.dom_name); 797 dname[0] = '\0'; 798 } 799 else 800 dname[len] = '\0'; 801 802 if ((u_short)so.so_type > STYPEMAX) 803 printf("* %s ?%d", dname, so.so_type); 804 else 805 printf("* %s %s", dname, stypename[so.so_type]); 806 807 /* 808 * protocol specific formatting 809 * 810 * Try to find interesting things to print. For tcp, the interesting 811 * thing is the address of the tcpcb, for udp and others, just the 812 * inpcb (socket pcb). For unix domain, its the address of the socket 813 * pcb and the address of the connected pcb (if connected). Otherwise 814 * just print the protocol number and address of the socket itself. 815 * The idea is not to duplicate netstat, but to make available enough 816 * information for further analysis. 817 */ 818 switch(dom.dom_family) { 819 case AF_INET: 820 case AF_INET6: 821 getinetproto(proto.pr_protocol); 822 if (proto.pr_protocol == IPPROTO_TCP ) { 823 if (so.so_pcb) { 824 if (kvm_read(kd, (u_long)so.so_pcb, 825 (char *)&inpcb, sizeof(struct inpcb)) 826 != sizeof(struct inpcb)) { 827 dprintf(stderr, 828 "can't read inpcb at %p\n", 829 (void *)so.so_pcb); 830 goto bad; 831 } 832 printf(" %lx", (u_long)inpcb.inp_ppcb); 833 } 834 } 835 else if (so.so_pcb) 836 printf(" %lx", (u_long)so.so_pcb); 837 break; 838 case AF_UNIX: 839 /* print address of pcb and connected pcb */ 840 if (so.so_pcb) { 841 printf(" %lx", (u_long)so.so_pcb); 842 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 843 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 844 dprintf(stderr, "can't read unpcb at %p\n", 845 (void *)so.so_pcb); 846 goto bad; 847 } 848 if (unpcb.unp_conn) { 849 char shoconn[4], *cp; 850 851 cp = shoconn; 852 if (!(so.so_state & SS_CANTRCVMORE)) 853 *cp++ = '<'; 854 *cp++ = '-'; 855 if (!(so.so_state & SS_CANTSENDMORE)) 856 *cp++ = '>'; 857 *cp = '\0'; 858 printf(" %s %lx", shoconn, 859 (u_long)unpcb.unp_conn); 860 } 861 } 862 break; 863 default: 864 /* print protocol number and socket address */ 865 printf(" %d %lx", proto.pr_protocol, (u_long)sock); 866 } 867 printf("\n"); 868 return; 869bad: 870 printf("* error\n"); 871} 872 873 874/* 875 * Read the specinfo structure in the kernel (as pointed to by a dev_t) 876 * in order to work out the associated udev_t 877 */ 878udev_t 879dev2udev(dev) 880 dev_t dev; 881{ 882 struct specinfo si; 883 884 if (KVM_READ(dev, &si, sizeof si)) { 885 return si.si_udev; 886 } else { 887 dprintf(stderr, "can't convert dev_t %x to a udev_t\n", dev); 888 return -1; 889 } 890} 891 892/* 893 * getinetproto -- 894 * print name of protocol number 895 */ 896void 897getinetproto(number) 898 int number; 899{ 900 static int isopen; 901 struct protoent *pe; 902 903 if (!isopen) 904 setprotoent(++isopen); 905 if ((pe = getprotobynumber(number)) != NULL) 906 printf(" %s", pe->p_name); 907 else 908 printf(" %d", number); 909} 910 911int 912getfname(filename) 913 const char *filename; 914{ 915 struct stat statbuf; 916 DEVS *cur; 917 918 if (stat(filename, &statbuf)) { 919 warn("%s", filename); 920 return(0); 921 } 922 if ((cur = malloc(sizeof(DEVS))) == NULL) 923 err(1, NULL); 924 cur->next = devs; 925 devs = cur; 926 927 cur->ino = statbuf.st_ino; 928 cur->fsid = statbuf.st_dev; 929 cur->name = filename; 930 return(1); 931} 932 933void 934usage() 935{ 936 (void)fprintf(stderr, 937 "usage: fstat [-fmnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 938 exit(1); 939} 940