Annotation of src/usr.bin/fstat/fstat.c, Revision 1.75
1.75 ! bluhm 1: /* $OpenBSD: fstat.c,v 1.74 2013/03/24 15:09:13 deraadt Exp $ */
1.65 millert 2:
3: /*
4: * Copyright (c) 2009 Todd C. Miller <Todd.Miller@courtesan.com>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
1.2 niklas 18:
1.1 deraadt 19: /*-
20: * Copyright (c) 1988, 1993
21: * The Regents of the University of California. All rights reserved.
22: *
23: * Redistribution and use in source and binary forms, with or without
24: * modification, are permitted provided that the following conditions
25: * are met:
26: * 1. Redistributions of source code must retain the above copyright
27: * notice, this list of conditions and the following disclaimer.
28: * 2. Redistributions in binary form must reproduce the above copyright
29: * notice, this list of conditions and the following disclaimer in the
30: * documentation and/or other materials provided with the distribution.
1.43 millert 31: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 32: * may be used to endorse or promote products derived from this software
33: * without specific prior written permission.
34: *
35: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
36: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
38: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
39: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
40: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
41: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
42: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
43: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
44: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
45: * SUCH DAMAGE.
46: */
47:
48: #include <sys/param.h>
1.68 millert 49: #include <sys/queue.h>
50: #include <sys/mount.h>
1.1 deraadt 51: #include <sys/stat.h>
52: #include <sys/vnode.h>
53: #include <sys/socket.h>
54: #include <sys/socketvar.h>
1.37 deraadt 55: #include <sys/eventvar.h>
1.1 deraadt 56: #include <sys/sysctl.h>
1.65 millert 57: #define _KERNEL /* for DTYPE_* */
1.1 deraadt 58: #include <sys/file.h>
59: #undef _KERNEL
1.61 thib 60:
1.1 deraadt 61: #include <net/route.h>
62: #include <netinet/in.h>
1.26 itojun 63:
64: #include <netdb.h>
1.5 deraadt 65: #include <arpa/inet.h>
66:
1.22 art 67: #include <sys/pipe.h>
68:
1.1 deraadt 69: #include <ctype.h>
70: #include <errno.h>
1.65 millert 71: #include <fcntl.h>
1.1 deraadt 72: #include <kvm.h>
1.2 niklas 73: #include <limits.h>
1.1 deraadt 74: #include <nlist.h>
75: #include <pwd.h>
1.72 guenther 76: #include <search.h>
1.68 millert 77: #include <signal.h>
1.1 deraadt 78: #include <stdio.h>
1.65 millert 79: #include <stdint.h>
1.1 deraadt 80: #include <stdlib.h>
81: #include <string.h>
1.11 millert 82: #include <unistd.h>
1.17 mickey 83: #include <err.h>
1.1 deraadt 84:
1.68 millert 85: #include "fstat.h"
86:
87: struct fileargs fileargs = SLIST_HEAD_INITIALIZER(fileargs);
1.1 deraadt 88:
1.46 deraadt 89: int fsflg; /* show files on same filesystem as file(s) argument */
90: int pflg; /* show files open by a particular pid */
91: int uflg; /* show files open by a particular (effective) user */
1.38 deraadt 92: int checkfile; /* true if restricting to particular files or filesystems */
1.1 deraadt 93: int nflg; /* (numerical) display f.s. and rdev as dev_t */
1.28 hugh 94: int oflg; /* display file offset */
1.56 mickey 95: int sflg; /* display file xfer/bytes counters */
1.1 deraadt 96: int vflg; /* display errors in locating kernel data objects etc... */
1.68 millert 97: int cflg; /* fuser only */
98:
99: int fuser; /* 1 if we are fuser, 0 if we are fstat */
100: int signo; /* signal to send (fuser only) */
1.1 deraadt 101:
102: kvm_t *kd;
1.62 deraadt 103: uid_t uid;
1.1 deraadt 104:
1.68 millert 105: void fstat_dofile(struct kinfo_file2 *);
106: void fstat_header(void);
1.35 millert 107: void getinetproto(int);
108: void usage(void);
109: int getfname(char *);
1.65 millert 110: void cryptotrans(struct kinfo_file2 *);
111: void kqueuetrans(struct kinfo_file2 *);
112: void pipetrans(struct kinfo_file2 *);
1.72 guenther 113: struct kinfo_file2 *splice_find(char, u_int64_t);
114: void splice_insert(char, u_int64_t, struct kinfo_file2 *);
115: void find_splices(struct kinfo_file2 *, int);
116: void print_inet_details(struct kinfo_file2 *);
117: #ifdef INET6
118: void print_inet6_details(struct kinfo_file2 *);
119: #endif
120: void print_sock_details(struct kinfo_file2 *);
1.65 millert 121: void socktrans(struct kinfo_file2 *);
122: void systracetrans(struct kinfo_file2 *);
123: void vtrans(struct kinfo_file2 *);
1.47 deraadt 124: const char *inet6_addrstr(struct in6_addr *);
1.68 millert 125: int signame_to_signum(char *);
1.74 deraadt 126: void hide(void *p);
127:
128: int hideroot;
129:
130: void
131: hide(void *p)
132: {
133: printf("%p", hideroot ? NULL : p);
134: }
1.1 deraadt 135:
1.11 millert 136: int
1.40 deraadt 137: main(int argc, char *argv[])
1.1 deraadt 138: {
1.32 mpech 139: struct passwd *passwd;
1.65 millert 140: struct kinfo_file2 *kf, *kflast;
1.1 deraadt 141: int arg, ch, what;
1.68 millert 142: char *memf, *nlistf, *optstr;
1.2 niklas 143: char buf[_POSIX2_LINE_MAX];
1.58 tedu 144: const char *errstr;
1.65 millert 145: int cnt, flags;
1.1 deraadt 146:
1.74 deraadt 147: hideroot = getuid();
148:
1.65 millert 149: arg = -1;
150: what = KERN_FILE_BYPID;
1.1 deraadt 151: nlistf = memf = NULL;
1.28 hugh 152: oflg = 0;
1.68 millert 153:
154: /* are we fstat(1) or fuser(1)? */
155: if (strcmp(__progname, "fuser") == 0) {
156: fuser = 1;
157: optstr = "cfks:uM:N:";
158: } else {
159: fuser = 0;
160: optstr = "fnop:su:vN:M:";
161: }
162:
163: /*
164: * fuser and fstat share three flags: -f, -s and -u. In both cases
165: * -f is a boolean, but for -u fstat wants an argument while fuser
166: * does not and for -s fuser wants an argument whereas fstat does not.
167: */
168: while ((ch = getopt(argc, argv, optstr)) != -1)
1.60 sobrado 169: switch ((char)ch) {
1.68 millert 170: case 'c':
171: if (fsflg)
172: usage();
173: cflg = 1;
174: break;
1.1 deraadt 175: case 'f':
1.68 millert 176: if (cflg)
177: usage();
1.1 deraadt 178: fsflg = 1;
179: break;
1.68 millert 180: case 'k':
181: sflg = 1;
182: signo = SIGKILL;
183: break;
1.1 deraadt 184: case 'M':
185: memf = optarg;
186: break;
187: case 'N':
188: nlistf = optarg;
189: break;
190: case 'n':
191: nflg = 1;
192: break;
1.28 hugh 193: case 'o':
194: oflg = 1;
195: break;
1.1 deraadt 196: case 'p':
197: if (pflg++)
198: usage();
1.58 tedu 199: arg = strtonum(optarg, 0, INT_MAX, &errstr);
200: if (errstr != NULL) {
1.74 deraadt 201: warnx("-p requires a process id, %s: %s",
1.58 tedu 202: errstr, optarg);
1.1 deraadt 203: usage();
204: }
1.65 millert 205: what = KERN_FILE_BYPID;
1.1 deraadt 206: break;
1.56 mickey 207: case 's':
208: sflg = 1;
1.68 millert 209: if (fuser) {
210: signo = signame_to_signum(optarg);
211: if (signo == -1) {
212: warnx("invalid signal %s", optarg);
213: usage();
214: }
215: }
1.56 mickey 216: break;
1.1 deraadt 217: case 'u':
218: if (uflg++)
219: usage();
1.68 millert 220: if (!fuser) {
1.69 nicm 221: if (!(passwd = getpwnam(optarg))) {
1.74 deraadt 222: arg = strtonum(optarg, 0, UID_MAX,
1.69 nicm 223: &errstr);
224: if (errstr != NULL) {
225: errx(1, "%s: unknown uid",
226: optarg);
227: }
228: } else
229: arg = passwd->pw_uid;
1.68 millert 230: what = KERN_FILE_BYUID;
231: }
1.1 deraadt 232: break;
233: case 'v':
234: vflg = 1;
235: break;
236: default:
237: usage();
238: }
239:
1.41 deraadt 240: /*
1.62 deraadt 241: * get the uid, for oflg and sflg
242: */
243: uid = getuid();
244:
245: /*
1.65 millert 246: * Use sysctl unless inspecting an alternate kernel.
1.41 deraadt 247: */
1.65 millert 248: if (nlistf == NULL || memf == NULL)
249: flags = KVM_NO_FILES;
250: else
251: flags = O_RDONLY;
1.41 deraadt 252:
1.65 millert 253: if ((kd = kvm_openfiles(nlistf, memf, NULL, flags, buf)) == NULL)
1.41 deraadt 254: errx(1, "%s", buf);
255:
1.1 deraadt 256: if (*(argv += optind)) {
257: for (; *argv; ++argv) {
258: if (getfname(*argv))
259: checkfile = 1;
260: }
1.68 millert 261: /* file(s) specified, but none accessible */
262: if (!checkfile)
1.1 deraadt 263: exit(1);
1.68 millert 264: } else if (fuser)
265: usage();
1.1 deraadt 266:
1.68 millert 267: if (!fuser && fsflg && !checkfile) {
268: /* fstat -f with no files means use wd */
1.1 deraadt 269: if (getfname(".") == 0)
270: exit(1);
271: checkfile = 1;
272: }
1.16 deraadt 273:
1.65 millert 274: if ((kf = kvm_getfile2(kd, what, arg, sizeof(*kf), &cnt)) == NULL)
1.21 deraadt 275: errx(1, "%s", kvm_geterr(kd));
1.68 millert 276:
1.72 guenther 277: find_splices(kf, cnt);
1.68 millert 278: if (!fuser)
279: fstat_header();
280: for (kflast = &kf[cnt]; kf < kflast; ++kf) {
281: if (fuser)
282: fuser_check(kf);
283: else
284: fstat_dofile(kf);
285: }
286: if (fuser)
287: fuser_run();
288:
289: exit(0);
290: }
291:
292: void
293: fstat_header(void)
294: {
1.1 deraadt 295: if (nflg)
296: printf("%s",
1.60 sobrado 297: "USER CMD PID FD DEV INUM MODE R/W SZ|DV");
1.1 deraadt 298: else
299: printf("%s",
1.60 sobrado 300: "USER CMD PID FD MOUNT INUM MODE R/W SZ|DV");
1.28 hugh 301: if (oflg)
302: printf("%s", ":OFFSET ");
1.1 deraadt 303: if (checkfile && fsflg == 0)
1.56 mickey 304: printf(" NAME");
305: if (sflg)
306: printf(" XFERS KBYTES");
307: putchar('\n');
1.1 deraadt 308: }
309:
310: char *Uname, *Comm;
1.62 deraadt 311: uid_t *procuid;
1.14 deraadt 312: pid_t Pid;
1.1 deraadt 313:
1.34 deraadt 314: #define PREFIX(i) do { \
1.39 mpech 315: printf("%-8.8s %-10s %5ld", Uname, Comm, (long)Pid); \
1.60 sobrado 316: switch (i) { \
1.65 millert 317: case KERN_FILE_TEXT: \
1.1 deraadt 318: printf(" text"); \
319: break; \
1.65 millert 320: case KERN_FILE_CDIR: \
1.1 deraadt 321: printf(" wd"); \
322: break; \
1.65 millert 323: case KERN_FILE_RDIR: \
1.1 deraadt 324: printf(" root"); \
325: break; \
1.65 millert 326: case KERN_FILE_TRACE: \
1.1 deraadt 327: printf(" tr"); \
328: break; \
329: default: \
330: printf(" %4d", i); \
331: break; \
1.34 deraadt 332: } \
333: } while (0)
1.1 deraadt 334:
335: /*
336: * print open files attributed to this process
337: */
338: void
1.68 millert 339: fstat_dofile(struct kinfo_file2 *kf)
1.1 deraadt 340: {
341:
1.65 millert 342: Uname = user_from_uid(kf->p_uid, 0);
343: procuid = &kf->p_uid;
344: Pid = kf->p_pid;
345: Comm = kf->p_comm;
1.56 mickey 346:
1.65 millert 347: switch (kf->f_type) {
348: case DTYPE_VNODE:
349: vtrans(kf);
350: break;
351: case DTYPE_SOCKET:
1.67 miod 352: if (checkfile == 0)
353: socktrans(kf);
1.65 millert 354: break;
355: case DTYPE_PIPE:
1.67 miod 356: if (checkfile == 0)
357: pipetrans(kf);
1.65 millert 358: break;
359: case DTYPE_KQUEUE:
1.67 miod 360: if (checkfile == 0)
361: kqueuetrans(kf);
1.65 millert 362: break;
363: case DTYPE_CRYPTO:
1.67 miod 364: if (checkfile == 0)
365: cryptotrans(kf);
1.65 millert 366: break;
367: case DTYPE_SYSTRACE:
1.67 miod 368: if (checkfile == 0)
369: systracetrans(kf);
1.65 millert 370: break;
371: default:
372: if (vflg) {
373: warnx("unknown file type %d for file %d of pid %ld",
374: kf->f_type, kf->fd_fd, (long)Pid);
1.1 deraadt 375: }
1.65 millert 376: break;
1.1 deraadt 377: }
378: }
379:
380: void
1.65 millert 381: vtrans(struct kinfo_file2 *kf)
1.1 deraadt 382: {
1.65 millert 383: const char *badtype = NULL;
384: char rw[3], mode[12];
385: char *filename = NULL;
386:
387: if (kf->v_type == VNON)
1.1 deraadt 388: badtype = "none";
1.65 millert 389: else if (kf->v_type == VBAD)
1.1 deraadt 390: badtype = "bad";
1.65 millert 391: else if (kf->v_tag == VT_NON && !(kf->v_flag & VCLONE))
392: badtype = "none"; /* not a clone */
393:
1.1 deraadt 394: if (checkfile) {
395: int fsmatch = 0;
1.68 millert 396: struct filearg *fa;
1.1 deraadt 397:
398: if (badtype)
399: return;
1.68 millert 400: SLIST_FOREACH(fa, &fileargs, next) {
401: if (fa->dev == kf->va_fsid) {
1.1 deraadt 402: fsmatch = 1;
1.68 millert 403: if (fa->ino == kf->va_fileid) {
404: filename = fa->name;
1.1 deraadt 405: break;
406: }
407: }
1.65 millert 408: }
1.1 deraadt 409: if (fsmatch == 0 || (filename == NULL && fsflg == 0))
410: return;
411: }
1.65 millert 412: PREFIX(kf->fd_fd);
1.1 deraadt 413: if (badtype) {
1.53 mickey 414: (void)printf(" - - %10s -\n", badtype);
1.1 deraadt 415: return;
416: }
1.61 thib 417:
1.1 deraadt 418: if (nflg)
1.65 millert 419: (void)printf(" %2ld,%-2ld", (long)major(kf->va_fsid),
420: (long)minor(kf->va_fsid));
421: else if (!(kf->v_flag & VCLONE))
422: (void)printf(" %-8s", kf->f_mntonname);
1.1 deraadt 423: else
1.73 mikeb 424: (void)printf(" clone ");
1.1 deraadt 425: if (nflg)
1.65 millert 426: (void)snprintf(mode, sizeof(mode), "%o", kf->va_mode);
1.1 deraadt 427: else
1.65 millert 428: strmode(kf->va_mode, mode);
429: printf(" %8llu %11s", kf->va_fileid, mode);
1.28 hugh 430: rw[0] = '\0';
1.65 millert 431: if (kf->f_flag & FREAD)
1.34 deraadt 432: strlcat(rw, "r", sizeof rw);
1.65 millert 433: if (kf->f_flag & FWRITE)
1.34 deraadt 434: strlcat(rw, "w", sizeof rw);
1.28 hugh 435: printf(" %2s", rw);
1.65 millert 436: switch (kf->v_type) {
1.1 deraadt 437: case VBLK:
438: case VCHR: {
439: char *name;
440:
1.65 millert 441: if (nflg || ((name = devname(kf->va_rdev,
442: kf->v_type == VCHR ? S_IFCHR : S_IFBLK)) == NULL))
443: printf(" %2d,%-3d", major(kf->va_rdev), minor(kf->va_rdev));
1.1 deraadt 444: else
1.28 hugh 445: printf(" %7s", name);
446: if (oflg)
447: printf(" ");
1.1 deraadt 448: break;
449: }
450: default:
1.65 millert 451: printf(" %8llu", kf->va_size);
1.62 deraadt 452: if (oflg) {
453: if (uid == 0 || uid == *procuid)
1.65 millert 454: printf(":%-8llu", kf->f_offset);
1.74 deraadt 455: else
1.62 deraadt 456: printf(":%-8s", "*");
457: }
458: }
459: if (sflg) {
460: if (uid == 0 || uid == *procuid) {
1.65 millert 461: printf(" %8llu %8llu",
1.74 deraadt 462: (kf->f_rxfer + kf->f_rwfer),
463: (kf->f_rbytes + kf->f_wbytes) / 1024);
1.62 deraadt 464: } else {
465: printf(" %8s %8s", "*", "*");
466: }
1.1 deraadt 467: }
468: if (filename && !fsflg)
1.28 hugh 469: printf(" %s", filename);
1.1 deraadt 470: putchar('\n');
471: }
472:
1.22 art 473: void
1.65 millert 474: pipetrans(struct kinfo_file2 *kf)
1.22 art 475: {
476: void *maxaddr;
477:
1.65 millert 478: PREFIX(kf->fd_fd);
1.22 art 479:
480: printf(" ");
481:
482: /*
483: * We don't have enough space to fit both peer and own address, so
484: * we select the higher address so both ends of the pipe have the
485: * same visible addr. (it's the higher address because when the other
486: * end closes, it becomes 0)
487: */
1.65 millert 488: maxaddr = (void *)(uintptr_t)MAX(kf->f_data, kf->pipe_peer);
1.22 art 489:
1.74 deraadt 490: printf("pipe ");
491: hide(maxaddr);
1.75 ! bluhm 492: printf(" state: %s%s%s",
1.65 millert 493: (kf->pipe_state & PIPE_WANTR) ? "R" : "",
494: (kf->pipe_state & PIPE_WANTW) ? "W" : "",
495: (kf->pipe_state & PIPE_EOF) ? "E" : "");
1.56 mickey 496: if (sflg)
1.65 millert 497: printf("\t%8llu %8llu",
498: (kf->f_rxfer + kf->f_rwfer),
499: (kf->f_rbytes + kf->f_wbytes) / 1024);
1.56 mickey 500: printf("\n");
1.37 deraadt 501: return;
502: }
503:
504: void
1.65 millert 505: kqueuetrans(struct kinfo_file2 *kf)
1.37 deraadt 506: {
1.65 millert 507: PREFIX(kf->fd_fd);
1.37 deraadt 508:
509: printf(" ");
510:
1.74 deraadt 511: printf("kqueue ");
512: hide((void *)(uintptr_t)kf->f_data);
513: printf(" %d state: %s%s\n",
1.65 millert 514: kf->kq_count,
515: (kf->kq_state & KQ_SEL) ? "S" : "",
516: (kf->kq_state & KQ_SLEEP) ? "W" : "");
1.37 deraadt 517: return;
518: }
519:
520: void
1.65 millert 521: cryptotrans(struct kinfo_file2 *kf)
1.37 deraadt 522: {
1.65 millert 523: PREFIX(kf->fd_fd);
1.37 deraadt 524:
525: printf(" ");
526:
1.74 deraadt 527: printf("crypto ");
528: hide((void *)(uintptr_t)kf->f_data);
529: printf("\n");
1.37 deraadt 530: }
531:
532: void
1.65 millert 533: systracetrans(struct kinfo_file2 *kf)
1.37 deraadt 534: {
1.65 millert 535: PREFIX(kf->fd_fd);
1.37 deraadt 536:
537: printf(" ");
538:
1.74 deraadt 539: printf("systrace ");
540: hide((void *)(uintptr_t)kf->f_data);
541: printf(" npol %d\n", kf->str_npolicies);
1.22 art 542: return;
1.1 deraadt 543: }
544:
1.26 itojun 545: #ifdef INET6
546: const char *
1.40 deraadt 547: inet6_addrstr(struct in6_addr *p)
1.26 itojun 548: {
549: struct sockaddr_in6 sin6;
550: static char hbuf[NI_MAXHOST];
1.50 itojun 551: const int niflags = NI_NUMERICHOST;
1.26 itojun 552:
553: memset(&sin6, 0, sizeof(sin6));
554: sin6.sin6_family = AF_INET6;
555: sin6.sin6_len = sizeof(struct sockaddr_in6);
556: sin6.sin6_addr = *p;
557: if (IN6_IS_ADDR_LINKLOCAL(p) &&
558: *(u_int16_t *)&sin6.sin6_addr.s6_addr[2] != 0) {
559: sin6.sin6_scope_id =
1.38 deraadt 560: ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
1.26 itojun 561: sin6.sin6_addr.s6_addr[2] = sin6.sin6_addr.s6_addr[3] = 0;
562: }
563:
564: if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
1.38 deraadt 565: hbuf, sizeof(hbuf), NULL, 0, niflags))
1.26 itojun 566: return "invalid";
567:
568: return hbuf;
569: }
570: #endif
571:
1.1 deraadt 572: void
1.72 guenther 573: splice_insert(char type, u_int64_t ptr, struct kinfo_file2 *data)
574: {
575: ENTRY entry, *found;
576:
1.74 deraadt 577: if (asprintf(&entry.key, "%c%llx", type, hideroot ? 0 : ptr) == -1)
1.72 guenther 578: err(1, NULL);
579: entry.data = data;
580: if ((found = hsearch(entry, ENTER)) == NULL)
581: err(1, "hsearch");
582: /* if it's ambiguous, set the data to NULL */
583: if (found->data != data)
584: found->data = NULL;
585: }
586:
587: struct kinfo_file2 *
588: splice_find(char type, u_int64_t ptr)
589: {
590: ENTRY entry, *found;
591: char buf[20];
592:
1.74 deraadt 593: snprintf(buf, sizeof(buf), "%c%llx", type, hideroot ? 0 : ptr);
1.72 guenther 594: entry.key = buf;
595: found = hsearch(entry, FIND);
596: return (found != NULL ? found->data : NULL);
597: }
598:
599: void
600: find_splices(struct kinfo_file2 *kf, int cnt)
601: {
602: int i, created;
603:
604: created = 0;
605: for (i = 0; i < cnt; i++) {
606: if (kf[i].f_type != DTYPE_SOCKET ||
607: (kf[i].so_splice == 0 && kf[i].so_splicelen != -1))
608: continue;
609: if (created++ == 0) {
610: if (hcreate(1000) == 0)
611: err(1, "hcreate");
612: }
613: splice_insert('>', kf[i].f_data, &kf[i]);
614: if (kf[i].so_splice != 0)
615: splice_insert('<', kf[i].so_splice, &kf[i]);
616: }
617: }
618:
619: void
620: print_inet_details(struct kinfo_file2 *kf)
621: {
622: struct in_addr laddr, faddr;
623:
624: memcpy(&laddr, kf->inp_laddru, sizeof(laddr));
625: memcpy(&faddr, kf->inp_faddru, sizeof(faddr));
626: if (kf->so_protocol == IPPROTO_TCP) {
1.74 deraadt 627: printf(" ");
628: hide((void *)(uintptr_t)kf->inp_ppcb);
1.72 guenther 629: printf(" %s:%d", laddr.s_addr == INADDR_ANY ? "*" :
630: inet_ntoa(laddr), ntohs(kf->inp_lport));
631: if (kf->inp_fport) {
632: if (kf->so_state & SS_CONNECTOUT)
633: printf(" --> ");
634: else
635: printf(" <-- ");
636: printf("%s:%d",
637: faddr.s_addr == INADDR_ANY ? "*" :
638: inet_ntoa(faddr), ntohs(kf->inp_fport));
639: }
640: } else if (kf->so_protocol == IPPROTO_UDP) {
641: printf(" %s:%d", laddr.s_addr == INADDR_ANY ? "*" :
642: inet_ntoa(laddr), ntohs(kf->inp_lport));
643: if (kf->inp_fport) {
644: printf(" <-> %s:%d",
645: faddr.s_addr == INADDR_ANY ? "*" :
646: inet_ntoa(faddr), ntohs(kf->inp_fport));
647: }
1.74 deraadt 648: } else if (kf->so_pcb) {
649: printf(" ");
650: hide((void *)(uintptr_t)kf->so_pcb);
651: }
1.72 guenther 652: }
653:
654: #ifdef INET6
655: void
656: print_inet6_details(struct kinfo_file2 *kf)
657: {
658: char xaddrbuf[NI_MAXHOST + 2];
659: struct in6_addr laddr6, faddr6;
660:
661: memcpy(&laddr6, kf->inp_laddru, sizeof(laddr6));
662: memcpy(&faddr6, kf->inp_faddru, sizeof(faddr6));
663: if (kf->so_protocol == IPPROTO_TCP) {
1.74 deraadt 664: printf(" ");
665: hide((void *)(uintptr_t)kf->inp_ppcb);
1.72 guenther 666: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
667: inet6_addrstr(&laddr6));
668: printf(" %s:%d",
669: IN6_IS_ADDR_UNSPECIFIED(&laddr6) ? "*" :
670: xaddrbuf, ntohs(kf->inp_lport));
671: if (kf->inp_fport) {
672: if (kf->so_state & SS_CONNECTOUT)
673: printf(" --> ");
674: else
675: printf(" <-- ");
676: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
677: inet6_addrstr(&faddr6));
678: printf("%s:%d",
679: IN6_IS_ADDR_UNSPECIFIED(&faddr6) ? "*" :
680: xaddrbuf, ntohs(kf->inp_fport));
681: }
682: } else if (kf->so_protocol == IPPROTO_UDP) {
683: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
684: inet6_addrstr(&laddr6));
685: printf(" %s:%d",
686: IN6_IS_ADDR_UNSPECIFIED(&laddr6) ? "*" :
687: xaddrbuf, ntohs(kf->inp_lport));
688: if (kf->inp_fport) {
689: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
690: inet6_addrstr(&faddr6));
691: printf(" <-> %s:%d",
692: IN6_IS_ADDR_UNSPECIFIED(&faddr6) ? "*" :
693: xaddrbuf, ntohs(kf->inp_fport));
694: }
1.74 deraadt 695: } else if (kf->so_pcb) {
696: printf(" ");
697: hide((void *)(uintptr_t)kf->so_pcb);
698: }
1.72 guenther 699: }
700: #endif
701:
702: void
703: print_sock_details(struct kinfo_file2 *kf)
704: {
705: if (kf->so_family == AF_INET)
706: print_inet_details(kf);
707: #ifdef INET6
708: else if (kf->so_family == AF_INET6)
709: print_inet6_details(kf);
710: #endif
711: }
712:
713: void
1.65 millert 714: socktrans(struct kinfo_file2 *kf)
1.1 deraadt 715: {
716: static char *stypename[] = {
717: "unused", /* 0 */
1.38 deraadt 718: "stream", /* 1 */
1.1 deraadt 719: "dgram", /* 2 */
720: "raw", /* 3 */
721: "rdm", /* 4 */
722: "seqpak" /* 5 */
723: };
724: #define STYPEMAX 5
1.66 chl 725: char *stype, stypebuf[24];
1.1 deraadt 726:
1.65 millert 727: PREFIX(kf->fd_fd);
1.1 deraadt 728:
1.65 millert 729: if (kf->so_type > STYPEMAX) {
730: snprintf(stypebuf, sizeof(stypebuf), "?%d", kf->so_type);
731: stype = stypebuf;
732: } else {
733: stype = stypename[kf->so_type];
1.1 deraadt 734: }
735:
1.34 deraadt 736: /*
1.1 deraadt 737: * protocol specific formatting
738: *
739: * Try to find interesting things to print. For tcp, the interesting
740: * thing is the address of the tcpcb, for udp and others, just the
741: * inpcb (socket pcb). For unix domain, its the address of the socket
742: * pcb and the address of the connected pcb (if connected). Otherwise
743: * just print the protocol number and address of the socket itself.
744: * The idea is not to duplicate netstat, but to make available enough
745: * information for further analysis.
746: */
1.65 millert 747: switch (kf->so_family) {
1.1 deraadt 748: case AF_INET:
1.65 millert 749: printf("* internet %s", stype);
750: getinetproto(kf->so_protocol);
1.72 guenther 751: print_inet_details(kf);
1.1 deraadt 752: break;
1.26 itojun 753: #ifdef INET6
754: case AF_INET6:
1.65 millert 755: printf("* internet6 %s", stype);
756: getinetproto(kf->so_protocol);
1.72 guenther 757: print_inet6_details(kf);
1.26 itojun 758: break;
759: #endif
1.1 deraadt 760: case AF_UNIX:
761: /* print address of pcb and connected pcb */
1.65 millert 762: printf("* unix %s", stype);
763: if (kf->so_pcb) {
1.74 deraadt 764: printf(" ");
765: hide((void *)(uintptr_t)kf->so_pcb);
1.65 millert 766: if (kf->unp_conn) {
1.1 deraadt 767: char shoconn[4], *cp;
768:
769: cp = shoconn;
1.65 millert 770: if (!(kf->so_state & SS_CANTRCVMORE))
1.1 deraadt 771: *cp++ = '<';
772: *cp++ = '-';
1.65 millert 773: if (!(kf->so_state & SS_CANTSENDMORE))
1.1 deraadt 774: *cp++ = '>';
775: *cp = '\0';
1.74 deraadt 776: printf(" %s ", shoconn);
777: hide((void *)(uintptr_t)kf->unp_conn);
1.1 deraadt 778: }
779: }
780: break;
1.65 millert 781: case AF_MPLS:
782: /* print protocol number and socket address */
783: printf("* mpls %s", stype);
1.74 deraadt 784: printf(" %d ", kf->so_protocol);
785: hide((void *)(uintptr_t)kf->f_data);
1.65 millert 786: break;
787: case AF_ROUTE:
788: /* print protocol number and socket address */
789: printf("* route %s", stype);
1.74 deraadt 790: printf(" %d ", kf->so_protocol);
791: hide((void *)(uintptr_t)kf->f_data);
1.65 millert 792: break;
793: case AF_BLUETOOTH:
794: /* print protocol number and socket address */
795: printf("* bluetooth %s", stype);
1.74 deraadt 796: printf(" %d ", kf->so_protocol);
797: hide((void *)(uintptr_t)kf->f_data);
1.65 millert 798: break;
799: case AF_NATM:
800: /* print protocol number and socket address */
801: printf("* natm %s", stype);
1.74 deraadt 802: printf(" %d ", kf->so_protocol);
803: hide((void *)(uintptr_t)kf->f_data);
1.65 millert 804: break;
1.1 deraadt 805: default:
806: /* print protocol number and socket address */
1.65 millert 807: printf("* %d %s", kf->so_family, stype);
1.74 deraadt 808: printf(" %d ", kf->so_protocol);
809: hide((void *)(uintptr_t)kf->f_data);
1.72 guenther 810: }
811: if (kf->so_splice != 0 || kf->so_splicelen == -1) {
812: struct kinfo_file2 *from, *to;
813:
814: from = splice_find('<', kf->f_data);
815: to = NULL;
816: if (kf->so_splice != 0)
817: to = splice_find('>', kf->so_splice);
818:
819: if (to != NULL && from == to) {
820: printf(" <==>");
821: print_sock_details(to);
822: } else if (kf->so_splice != 0) {
823: printf(" ==>");
824: if (to != NULL)
825: print_sock_details(to);
826: } else if (kf->so_splicelen == -1) {
827: printf(" <==");
828: if (from != NULL)
829: print_sock_details(from);
830: }
1.1 deraadt 831: }
1.56 mickey 832: if (sflg)
1.65 millert 833: printf("\t%8llu %8llu",
834: (kf->f_rxfer + kf->f_rwfer),
835: (kf->f_rbytes + kf->f_wbytes) / 1024);
1.1 deraadt 836: printf("\n");
837: }
838:
839: /*
840: * getinetproto --
841: * print name of protocol number
842: */
843: void
844: getinetproto(number)
845: int number;
846: {
1.24 deraadt 847: static int isopen;
1.32 mpech 848: struct protoent *pe;
1.1 deraadt 849:
1.24 deraadt 850: if (!isopen)
851: setprotoent(++isopen);
852: if ((pe = getprotobynumber(number)) != NULL)
853: printf(" %s", pe->p_name);
854: else
1.1 deraadt 855: printf(" %d", number);
856: }
857:
1.11 millert 858: int
1.40 deraadt 859: getfname(char *filename)
1.1 deraadt 860: {
1.68 millert 861: static struct statfs *mntbuf;
862: static int nmounts;
863: int i;
864: struct stat sb;
865: struct filearg *cur;
1.1 deraadt 866:
1.68 millert 867: if (stat(filename, &sb)) {
1.27 millert 868: warn("%s", filename);
1.68 millert 869: return (0);
1.1 deraadt 870: }
871:
1.68 millert 872: /*
873: * POSIX specifies "For block special devices, all processes using any
874: * file on that device are listed". However the -f flag description
875: * states "The report shall be only for the named files", so we only
876: * look up a block device if the -f flag has not be specified.
877: */
878: if (fuser && !fsflg && S_ISBLK(sb.st_mode)) {
879: if (mntbuf == NULL) {
880: nmounts = getmntinfo(&mntbuf, MNT_NOWAIT);
881: if (nmounts == -1)
882: err(1, "getmntinfo");
883: }
884: for (i = 0; i < nmounts; i++) {
885: if (!strcmp(mntbuf[i].f_mntfromname, filename)) {
886: if (stat(mntbuf[i].f_mntonname, &sb) == -1) {
887: warn("%s", filename);
888: return (0);
889: }
890: cflg = 1;
891: break;
892: }
893: }
894: }
895:
896: if ((cur = malloc(sizeof(*cur))) == NULL)
897: err(1, NULL);
898:
899: cur->ino = sb.st_ino;
900: cur->dev = sb.st_dev & 0xffff;
1.1 deraadt 901: cur->name = filename;
1.68 millert 902: TAILQ_INIT(&cur->fusers);
903: SLIST_INSERT_HEAD(&fileargs, cur, next);
904: return (1);
905: }
906:
907: int
908: signame_to_signum(char *sig)
909: {
910: int n;
911: const char *errstr = NULL;
912:
913: if (isdigit((unsigned char)*sig)) {
914: n = strtonum(sig, 0, NSIG - 1, &errstr);
915: return (errstr ? -1 : n);
916: }
917: if (!strncasecmp(sig, "sig", 3))
918: sig += 3;
919: for (n = 1; n < NSIG; n++) {
920: if (!strcasecmp(sys_signame[n], sig))
921: return (n);
922: }
923: return (-1);
1.1 deraadt 924: }
925:
926: void
1.40 deraadt 927: usage(void)
1.1 deraadt 928: {
1.68 millert 929: if (fuser) {
930: fprintf(stderr, "usage: fuser [-cfku] [-M core] "
931: "[-N system] [-s signal] file ...\n");
932: } else {
933: fprintf(stderr, "usage: fstat [-fnosv] [-M core] [-N system] "
934: "[-p pid] [-u user] [file ...]\n");
935: }
1.1 deraadt 936: exit(1);
937: }
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