Annotation of src/usr.bin/fstat/fstat.c, Revision 1.73
1.73 ! mikeb 1: /* $OpenBSD: fstat.c,v 1.72 2012/01/07 05:38:12 guenther 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 *);
1.1 deraadt 126:
1.11 millert 127: int
1.40 deraadt 128: main(int argc, char *argv[])
1.1 deraadt 129: {
1.32 mpech 130: struct passwd *passwd;
1.65 millert 131: struct kinfo_file2 *kf, *kflast;
1.1 deraadt 132: int arg, ch, what;
1.68 millert 133: char *memf, *nlistf, *optstr;
1.2 niklas 134: char buf[_POSIX2_LINE_MAX];
1.58 tedu 135: const char *errstr;
1.65 millert 136: int cnt, flags;
1.1 deraadt 137:
1.65 millert 138: arg = -1;
139: what = KERN_FILE_BYPID;
1.1 deraadt 140: nlistf = memf = NULL;
1.28 hugh 141: oflg = 0;
1.68 millert 142:
143: /* are we fstat(1) or fuser(1)? */
144: if (strcmp(__progname, "fuser") == 0) {
145: fuser = 1;
146: optstr = "cfks:uM:N:";
147: } else {
148: fuser = 0;
149: optstr = "fnop:su:vN:M:";
150: }
151:
152: /*
153: * fuser and fstat share three flags: -f, -s and -u. In both cases
154: * -f is a boolean, but for -u fstat wants an argument while fuser
155: * does not and for -s fuser wants an argument whereas fstat does not.
156: */
157: while ((ch = getopt(argc, argv, optstr)) != -1)
1.60 sobrado 158: switch ((char)ch) {
1.68 millert 159: case 'c':
160: if (fsflg)
161: usage();
162: cflg = 1;
163: break;
1.1 deraadt 164: case 'f':
1.68 millert 165: if (cflg)
166: usage();
1.1 deraadt 167: fsflg = 1;
168: break;
1.68 millert 169: case 'k':
170: sflg = 1;
171: signo = SIGKILL;
172: break;
1.1 deraadt 173: case 'M':
174: memf = optarg;
175: break;
176: case 'N':
177: nlistf = optarg;
178: break;
179: case 'n':
180: nflg = 1;
181: break;
1.28 hugh 182: case 'o':
183: oflg = 1;
184: break;
1.1 deraadt 185: case 'p':
186: if (pflg++)
187: usage();
1.58 tedu 188: arg = strtonum(optarg, 0, INT_MAX, &errstr);
189: if (errstr != NULL) {
190: warnx("-p requires a process id, %s: %s",
191: errstr, optarg);
1.1 deraadt 192: usage();
193: }
1.65 millert 194: what = KERN_FILE_BYPID;
1.1 deraadt 195: break;
1.56 mickey 196: case 's':
197: sflg = 1;
1.68 millert 198: if (fuser) {
199: signo = signame_to_signum(optarg);
200: if (signo == -1) {
201: warnx("invalid signal %s", optarg);
202: usage();
203: }
204: }
1.56 mickey 205: break;
1.1 deraadt 206: case 'u':
207: if (uflg++)
208: usage();
1.68 millert 209: if (!fuser) {
1.69 nicm 210: if (!(passwd = getpwnam(optarg))) {
211: arg = strtonum(optarg, 0, UID_MAX,
212: &errstr);
213: if (errstr != NULL) {
214: errx(1, "%s: unknown uid",
215: optarg);
216: }
217: } else
218: arg = passwd->pw_uid;
1.68 millert 219: what = KERN_FILE_BYUID;
220: }
1.1 deraadt 221: break;
222: case 'v':
223: vflg = 1;
224: break;
225: default:
226: usage();
227: }
228:
1.41 deraadt 229: /*
1.62 deraadt 230: * get the uid, for oflg and sflg
231: */
232: uid = getuid();
233:
234: /*
1.65 millert 235: * Use sysctl unless inspecting an alternate kernel.
1.41 deraadt 236: */
1.65 millert 237: if (nlistf == NULL || memf == NULL)
238: flags = KVM_NO_FILES;
239: else
240: flags = O_RDONLY;
1.41 deraadt 241:
1.65 millert 242: if ((kd = kvm_openfiles(nlistf, memf, NULL, flags, buf)) == NULL)
1.41 deraadt 243: errx(1, "%s", buf);
244:
1.1 deraadt 245: if (*(argv += optind)) {
246: for (; *argv; ++argv) {
247: if (getfname(*argv))
248: checkfile = 1;
249: }
1.68 millert 250: /* file(s) specified, but none accessible */
251: if (!checkfile)
1.1 deraadt 252: exit(1);
1.68 millert 253: } else if (fuser)
254: usage();
1.1 deraadt 255:
1.68 millert 256: if (!fuser && fsflg && !checkfile) {
257: /* fstat -f with no files means use wd */
1.1 deraadt 258: if (getfname(".") == 0)
259: exit(1);
260: checkfile = 1;
261: }
1.16 deraadt 262:
1.65 millert 263: if ((kf = kvm_getfile2(kd, what, arg, sizeof(*kf), &cnt)) == NULL)
1.21 deraadt 264: errx(1, "%s", kvm_geterr(kd));
1.68 millert 265:
1.72 guenther 266: find_splices(kf, cnt);
1.68 millert 267: if (!fuser)
268: fstat_header();
269: for (kflast = &kf[cnt]; kf < kflast; ++kf) {
270: if (fuser)
271: fuser_check(kf);
272: else
273: fstat_dofile(kf);
274: }
275: if (fuser)
276: fuser_run();
277:
278: exit(0);
279: }
280:
281: void
282: fstat_header(void)
283: {
1.1 deraadt 284: if (nflg)
285: printf("%s",
1.60 sobrado 286: "USER CMD PID FD DEV INUM MODE R/W SZ|DV");
1.1 deraadt 287: else
288: printf("%s",
1.60 sobrado 289: "USER CMD PID FD MOUNT INUM MODE R/W SZ|DV");
1.28 hugh 290: if (oflg)
291: printf("%s", ":OFFSET ");
1.1 deraadt 292: if (checkfile && fsflg == 0)
1.56 mickey 293: printf(" NAME");
294: if (sflg)
295: printf(" XFERS KBYTES");
296: putchar('\n');
1.1 deraadt 297: }
298:
299: char *Uname, *Comm;
1.62 deraadt 300: uid_t *procuid;
1.14 deraadt 301: pid_t Pid;
1.1 deraadt 302:
1.34 deraadt 303: #define PREFIX(i) do { \
1.39 mpech 304: printf("%-8.8s %-10s %5ld", Uname, Comm, (long)Pid); \
1.60 sobrado 305: switch (i) { \
1.65 millert 306: case KERN_FILE_TEXT: \
1.1 deraadt 307: printf(" text"); \
308: break; \
1.65 millert 309: case KERN_FILE_CDIR: \
1.1 deraadt 310: printf(" wd"); \
311: break; \
1.65 millert 312: case KERN_FILE_RDIR: \
1.1 deraadt 313: printf(" root"); \
314: break; \
1.65 millert 315: case KERN_FILE_TRACE: \
1.1 deraadt 316: printf(" tr"); \
317: break; \
318: default: \
319: printf(" %4d", i); \
320: break; \
1.34 deraadt 321: } \
322: } while (0)
1.1 deraadt 323:
324: /*
325: * print open files attributed to this process
326: */
327: void
1.68 millert 328: fstat_dofile(struct kinfo_file2 *kf)
1.1 deraadt 329: {
330:
1.65 millert 331: Uname = user_from_uid(kf->p_uid, 0);
332: procuid = &kf->p_uid;
333: Pid = kf->p_pid;
334: Comm = kf->p_comm;
1.56 mickey 335:
1.65 millert 336: switch (kf->f_type) {
337: case DTYPE_VNODE:
338: vtrans(kf);
339: break;
340: case DTYPE_SOCKET:
1.67 miod 341: if (checkfile == 0)
342: socktrans(kf);
1.65 millert 343: break;
344: case DTYPE_PIPE:
1.67 miod 345: if (checkfile == 0)
346: pipetrans(kf);
1.65 millert 347: break;
348: case DTYPE_KQUEUE:
1.67 miod 349: if (checkfile == 0)
350: kqueuetrans(kf);
1.65 millert 351: break;
352: case DTYPE_CRYPTO:
1.67 miod 353: if (checkfile == 0)
354: cryptotrans(kf);
1.65 millert 355: break;
356: case DTYPE_SYSTRACE:
1.67 miod 357: if (checkfile == 0)
358: systracetrans(kf);
1.65 millert 359: break;
360: default:
361: if (vflg) {
362: warnx("unknown file type %d for file %d of pid %ld",
363: kf->f_type, kf->fd_fd, (long)Pid);
1.1 deraadt 364: }
1.65 millert 365: break;
1.1 deraadt 366: }
367: }
368:
369: void
1.65 millert 370: vtrans(struct kinfo_file2 *kf)
1.1 deraadt 371: {
1.65 millert 372: const char *badtype = NULL;
373: char rw[3], mode[12];
374: char *filename = NULL;
375:
376: if (kf->v_type == VNON)
1.1 deraadt 377: badtype = "none";
1.65 millert 378: else if (kf->v_type == VBAD)
1.1 deraadt 379: badtype = "bad";
1.65 millert 380: else if (kf->v_tag == VT_NON && !(kf->v_flag & VCLONE))
381: badtype = "none"; /* not a clone */
382:
1.1 deraadt 383: if (checkfile) {
384: int fsmatch = 0;
1.68 millert 385: struct filearg *fa;
1.1 deraadt 386:
387: if (badtype)
388: return;
1.68 millert 389: SLIST_FOREACH(fa, &fileargs, next) {
390: if (fa->dev == kf->va_fsid) {
1.1 deraadt 391: fsmatch = 1;
1.68 millert 392: if (fa->ino == kf->va_fileid) {
393: filename = fa->name;
1.1 deraadt 394: break;
395: }
396: }
1.65 millert 397: }
1.1 deraadt 398: if (fsmatch == 0 || (filename == NULL && fsflg == 0))
399: return;
400: }
1.65 millert 401: PREFIX(kf->fd_fd);
1.1 deraadt 402: if (badtype) {
1.53 mickey 403: (void)printf(" - - %10s -\n", badtype);
1.1 deraadt 404: return;
405: }
1.61 thib 406:
1.1 deraadt 407: if (nflg)
1.65 millert 408: (void)printf(" %2ld,%-2ld", (long)major(kf->va_fsid),
409: (long)minor(kf->va_fsid));
410: else if (!(kf->v_flag & VCLONE))
411: (void)printf(" %-8s", kf->f_mntonname);
1.1 deraadt 412: else
1.73 ! mikeb 413: (void)printf(" clone ");
1.1 deraadt 414: if (nflg)
1.65 millert 415: (void)snprintf(mode, sizeof(mode), "%o", kf->va_mode);
1.1 deraadt 416: else
1.65 millert 417: strmode(kf->va_mode, mode);
418: printf(" %8llu %11s", kf->va_fileid, mode);
1.28 hugh 419: rw[0] = '\0';
1.65 millert 420: if (kf->f_flag & FREAD)
1.34 deraadt 421: strlcat(rw, "r", sizeof rw);
1.65 millert 422: if (kf->f_flag & FWRITE)
1.34 deraadt 423: strlcat(rw, "w", sizeof rw);
1.28 hugh 424: printf(" %2s", rw);
1.65 millert 425: switch (kf->v_type) {
1.1 deraadt 426: case VBLK:
427: case VCHR: {
428: char *name;
429:
1.65 millert 430: if (nflg || ((name = devname(kf->va_rdev,
431: kf->v_type == VCHR ? S_IFCHR : S_IFBLK)) == NULL))
432: printf(" %2d,%-3d", major(kf->va_rdev), minor(kf->va_rdev));
1.1 deraadt 433: else
1.28 hugh 434: printf(" %7s", name);
435: if (oflg)
436: printf(" ");
1.1 deraadt 437: break;
438: }
439: default:
1.65 millert 440: printf(" %8llu", kf->va_size);
1.62 deraadt 441: if (oflg) {
442: if (uid == 0 || uid == *procuid)
1.65 millert 443: printf(":%-8llu", kf->f_offset);
1.62 deraadt 444: else
445: printf(":%-8s", "*");
446: }
447: }
448: if (sflg) {
449: if (uid == 0 || uid == *procuid) {
1.65 millert 450: printf(" %8llu %8llu",
451: (kf->f_rxfer + kf->f_rwfer),
452: (kf->f_rbytes + kf->f_wbytes) / 1024);
1.62 deraadt 453: } else {
454: printf(" %8s %8s", "*", "*");
455: }
1.1 deraadt 456: }
457: if (filename && !fsflg)
1.28 hugh 458: printf(" %s", filename);
1.1 deraadt 459: putchar('\n');
460: }
461:
1.22 art 462: void
1.65 millert 463: pipetrans(struct kinfo_file2 *kf)
1.22 art 464: {
465: void *maxaddr;
466:
1.65 millert 467: PREFIX(kf->fd_fd);
1.22 art 468:
469: printf(" ");
470:
471: /*
472: * We don't have enough space to fit both peer and own address, so
473: * we select the higher address so both ends of the pipe have the
474: * same visible addr. (it's the higher address because when the other
475: * end closes, it becomes 0)
476: */
1.65 millert 477: maxaddr = (void *)(uintptr_t)MAX(kf->f_data, kf->pipe_peer);
1.22 art 478:
1.56 mickey 479: printf("pipe %p state: %s%s%s", maxaddr,
1.65 millert 480: (kf->pipe_state & PIPE_WANTR) ? "R" : "",
481: (kf->pipe_state & PIPE_WANTW) ? "W" : "",
482: (kf->pipe_state & PIPE_EOF) ? "E" : "");
1.56 mickey 483: if (sflg)
1.65 millert 484: printf("\t%8llu %8llu",
485: (kf->f_rxfer + kf->f_rwfer),
486: (kf->f_rbytes + kf->f_wbytes) / 1024);
1.56 mickey 487: printf("\n");
1.37 deraadt 488: return;
489: }
490:
491: void
1.65 millert 492: kqueuetrans(struct kinfo_file2 *kf)
1.37 deraadt 493: {
1.65 millert 494: PREFIX(kf->fd_fd);
1.37 deraadt 495:
496: printf(" ");
497:
1.65 millert 498: printf("kqueue %p %d state: %s%s\n", (void *)(uintptr_t)kf->f_data,
499: kf->kq_count,
500: (kf->kq_state & KQ_SEL) ? "S" : "",
501: (kf->kq_state & KQ_SLEEP) ? "W" : "");
1.37 deraadt 502: return;
503: }
504:
505: void
1.65 millert 506: cryptotrans(struct kinfo_file2 *kf)
1.37 deraadt 507: {
1.65 millert 508: PREFIX(kf->fd_fd);
1.37 deraadt 509:
510: printf(" ");
511:
1.65 millert 512: printf("crypto %p\n", (void *)(uintptr_t)kf->f_data);
1.37 deraadt 513: }
514:
515: void
1.65 millert 516: systracetrans(struct kinfo_file2 *kf)
1.37 deraadt 517: {
1.65 millert 518: PREFIX(kf->fd_fd);
1.37 deraadt 519:
520: printf(" ");
521:
1.65 millert 522: printf("systrace %p npol %d\n", (void *)(uintptr_t)kf->f_data,
523: kf->str_npolicies);
1.22 art 524: return;
1.1 deraadt 525: }
526:
1.26 itojun 527: #ifdef INET6
528: const char *
1.40 deraadt 529: inet6_addrstr(struct in6_addr *p)
1.26 itojun 530: {
531: struct sockaddr_in6 sin6;
532: static char hbuf[NI_MAXHOST];
1.50 itojun 533: const int niflags = NI_NUMERICHOST;
1.26 itojun 534:
535: memset(&sin6, 0, sizeof(sin6));
536: sin6.sin6_family = AF_INET6;
537: sin6.sin6_len = sizeof(struct sockaddr_in6);
538: sin6.sin6_addr = *p;
539: if (IN6_IS_ADDR_LINKLOCAL(p) &&
540: *(u_int16_t *)&sin6.sin6_addr.s6_addr[2] != 0) {
541: sin6.sin6_scope_id =
1.38 deraadt 542: ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
1.26 itojun 543: sin6.sin6_addr.s6_addr[2] = sin6.sin6_addr.s6_addr[3] = 0;
544: }
545:
546: if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
1.38 deraadt 547: hbuf, sizeof(hbuf), NULL, 0, niflags))
1.26 itojun 548: return "invalid";
549:
550: return hbuf;
551: }
552: #endif
553:
1.1 deraadt 554: void
1.72 guenther 555: splice_insert(char type, u_int64_t ptr, struct kinfo_file2 *data)
556: {
557: ENTRY entry, *found;
558:
559: if (asprintf(&entry.key, "%c%llx", type, ptr) == -1)
560: err(1, NULL);
561: entry.data = data;
562: if ((found = hsearch(entry, ENTER)) == NULL)
563: err(1, "hsearch");
564: /* if it's ambiguous, set the data to NULL */
565: if (found->data != data)
566: found->data = NULL;
567: }
568:
569: struct kinfo_file2 *
570: splice_find(char type, u_int64_t ptr)
571: {
572: ENTRY entry, *found;
573: char buf[20];
574:
575: snprintf(buf, sizeof(buf), "%c%llx", type, ptr);
576: entry.key = buf;
577: found = hsearch(entry, FIND);
578: return (found != NULL ? found->data : NULL);
579: }
580:
581: void
582: find_splices(struct kinfo_file2 *kf, int cnt)
583: {
584: int i, created;
585:
586: created = 0;
587: for (i = 0; i < cnt; i++) {
588: if (kf[i].f_type != DTYPE_SOCKET ||
589: (kf[i].so_splice == 0 && kf[i].so_splicelen != -1))
590: continue;
591: if (created++ == 0) {
592: if (hcreate(1000) == 0)
593: err(1, "hcreate");
594: }
595: splice_insert('>', kf[i].f_data, &kf[i]);
596: if (kf[i].so_splice != 0)
597: splice_insert('<', kf[i].so_splice, &kf[i]);
598: }
599: }
600:
601: void
602: print_inet_details(struct kinfo_file2 *kf)
603: {
604: struct in_addr laddr, faddr;
605:
606: memcpy(&laddr, kf->inp_laddru, sizeof(laddr));
607: memcpy(&faddr, kf->inp_faddru, sizeof(faddr));
608: if (kf->so_protocol == IPPROTO_TCP) {
609: printf(" %p", (void *)(uintptr_t)kf->inp_ppcb);
610: printf(" %s:%d", laddr.s_addr == INADDR_ANY ? "*" :
611: inet_ntoa(laddr), ntohs(kf->inp_lport));
612: if (kf->inp_fport) {
613: if (kf->so_state & SS_CONNECTOUT)
614: printf(" --> ");
615: else
616: printf(" <-- ");
617: printf("%s:%d",
618: faddr.s_addr == INADDR_ANY ? "*" :
619: inet_ntoa(faddr), ntohs(kf->inp_fport));
620: }
621: } else if (kf->so_protocol == IPPROTO_UDP) {
622: printf(" %s:%d", laddr.s_addr == INADDR_ANY ? "*" :
623: inet_ntoa(laddr), ntohs(kf->inp_lport));
624: if (kf->inp_fport) {
625: printf(" <-> %s:%d",
626: faddr.s_addr == INADDR_ANY ? "*" :
627: inet_ntoa(faddr), ntohs(kf->inp_fport));
628: }
629: } else if (kf->so_pcb)
630: printf(" %p", (void *)(uintptr_t)kf->so_pcb);
631: }
632:
633: #ifdef INET6
634: void
635: print_inet6_details(struct kinfo_file2 *kf)
636: {
637: char xaddrbuf[NI_MAXHOST + 2];
638: struct in6_addr laddr6, faddr6;
639:
640: memcpy(&laddr6, kf->inp_laddru, sizeof(laddr6));
641: memcpy(&faddr6, kf->inp_faddru, sizeof(faddr6));
642: if (kf->so_protocol == IPPROTO_TCP) {
643: printf(" %p", (void *)(uintptr_t)kf->inp_ppcb);
644: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
645: inet6_addrstr(&laddr6));
646: printf(" %s:%d",
647: IN6_IS_ADDR_UNSPECIFIED(&laddr6) ? "*" :
648: xaddrbuf, ntohs(kf->inp_lport));
649: if (kf->inp_fport) {
650: if (kf->so_state & SS_CONNECTOUT)
651: printf(" --> ");
652: else
653: printf(" <-- ");
654: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
655: inet6_addrstr(&faddr6));
656: printf("%s:%d",
657: IN6_IS_ADDR_UNSPECIFIED(&faddr6) ? "*" :
658: xaddrbuf, ntohs(kf->inp_fport));
659: }
660: } else if (kf->so_protocol == IPPROTO_UDP) {
661: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
662: inet6_addrstr(&laddr6));
663: printf(" %s:%d",
664: IN6_IS_ADDR_UNSPECIFIED(&laddr6) ? "*" :
665: xaddrbuf, ntohs(kf->inp_lport));
666: if (kf->inp_fport) {
667: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
668: inet6_addrstr(&faddr6));
669: printf(" <-> %s:%d",
670: IN6_IS_ADDR_UNSPECIFIED(&faddr6) ? "*" :
671: xaddrbuf, ntohs(kf->inp_fport));
672: }
673: } else if (kf->so_pcb)
674: printf(" %p", (void *)(uintptr_t)kf->so_pcb);
675: }
676: #endif
677:
678: void
679: print_sock_details(struct kinfo_file2 *kf)
680: {
681: if (kf->so_family == AF_INET)
682: print_inet_details(kf);
683: #ifdef INET6
684: else if (kf->so_family == AF_INET6)
685: print_inet6_details(kf);
686: #endif
687: }
688:
689: void
1.65 millert 690: socktrans(struct kinfo_file2 *kf)
1.1 deraadt 691: {
692: static char *stypename[] = {
693: "unused", /* 0 */
1.38 deraadt 694: "stream", /* 1 */
1.1 deraadt 695: "dgram", /* 2 */
696: "raw", /* 3 */
697: "rdm", /* 4 */
698: "seqpak" /* 5 */
699: };
700: #define STYPEMAX 5
1.66 chl 701: char *stype, stypebuf[24];
1.1 deraadt 702:
1.65 millert 703: PREFIX(kf->fd_fd);
1.1 deraadt 704:
1.65 millert 705: if (kf->so_type > STYPEMAX) {
706: snprintf(stypebuf, sizeof(stypebuf), "?%d", kf->so_type);
707: stype = stypebuf;
708: } else {
709: stype = stypename[kf->so_type];
1.1 deraadt 710: }
711:
1.34 deraadt 712: /*
1.1 deraadt 713: * protocol specific formatting
714: *
715: * Try to find interesting things to print. For tcp, the interesting
716: * thing is the address of the tcpcb, for udp and others, just the
717: * inpcb (socket pcb). For unix domain, its the address of the socket
718: * pcb and the address of the connected pcb (if connected). Otherwise
719: * just print the protocol number and address of the socket itself.
720: * The idea is not to duplicate netstat, but to make available enough
721: * information for further analysis.
722: */
1.65 millert 723: switch (kf->so_family) {
1.1 deraadt 724: case AF_INET:
1.65 millert 725: printf("* internet %s", stype);
726: getinetproto(kf->so_protocol);
1.72 guenther 727: print_inet_details(kf);
1.1 deraadt 728: break;
1.26 itojun 729: #ifdef INET6
730: case AF_INET6:
1.65 millert 731: printf("* internet6 %s", stype);
732: getinetproto(kf->so_protocol);
1.72 guenther 733: print_inet6_details(kf);
1.26 itojun 734: break;
735: #endif
1.1 deraadt 736: case AF_UNIX:
737: /* print address of pcb and connected pcb */
1.65 millert 738: printf("* unix %s", stype);
739: if (kf->so_pcb) {
1.68 millert 740: printf(" %p", (void *)(uintptr_t)kf->so_pcb);
1.65 millert 741: if (kf->unp_conn) {
1.1 deraadt 742: char shoconn[4], *cp;
743:
744: cp = shoconn;
1.65 millert 745: if (!(kf->so_state & SS_CANTRCVMORE))
1.1 deraadt 746: *cp++ = '<';
747: *cp++ = '-';
1.65 millert 748: if (!(kf->so_state & SS_CANTSENDMORE))
1.1 deraadt 749: *cp++ = '>';
750: *cp = '\0';
1.11 millert 751: printf(" %s %p", shoconn,
1.65 millert 752: (void *)(uintptr_t)kf->unp_conn);
1.1 deraadt 753: }
754: }
755: break;
1.65 millert 756: case AF_MPLS:
757: /* print protocol number and socket address */
758: printf("* mpls %s", stype);
759: printf(" %d %p", kf->so_protocol,
760: (void *)(uintptr_t)kf->f_data);
761: break;
762: case AF_ROUTE:
763: /* print protocol number and socket address */
764: printf("* route %s", stype);
765: printf(" %d %p", kf->so_protocol,
766: (void *)(uintptr_t)kf->f_data);
767: break;
768: case AF_BLUETOOTH:
769: /* print protocol number and socket address */
770: printf("* bluetooth %s", stype);
771: printf(" %d %p", kf->so_protocol,
772: (void *)(uintptr_t)kf->f_data);
773: break;
774: case AF_NATM:
775: /* print protocol number and socket address */
776: printf("* natm %s", stype);
777: printf(" %d %p", kf->so_protocol,
778: (void *)(uintptr_t)kf->f_data);
779: break;
1.1 deraadt 780: default:
781: /* print protocol number and socket address */
1.65 millert 782: printf("* %d %s", kf->so_family, stype);
783: printf(" %d %p", kf->so_protocol,
784: (void *)(uintptr_t)kf->f_data);
1.72 guenther 785: }
786: if (kf->so_splice != 0 || kf->so_splicelen == -1) {
787: struct kinfo_file2 *from, *to;
788:
789: from = splice_find('<', kf->f_data);
790: to = NULL;
791: if (kf->so_splice != 0)
792: to = splice_find('>', kf->so_splice);
793:
794: if (to != NULL && from == to) {
795: printf(" <==>");
796: print_sock_details(to);
797: } else if (kf->so_splice != 0) {
798: printf(" ==>");
799: if (to != NULL)
800: print_sock_details(to);
801: } else if (kf->so_splicelen == -1) {
802: printf(" <==");
803: if (from != NULL)
804: print_sock_details(from);
805: }
1.1 deraadt 806: }
1.56 mickey 807: if (sflg)
1.65 millert 808: printf("\t%8llu %8llu",
809: (kf->f_rxfer + kf->f_rwfer),
810: (kf->f_rbytes + kf->f_wbytes) / 1024);
1.1 deraadt 811: printf("\n");
812: }
813:
814: /*
815: * getinetproto --
816: * print name of protocol number
817: */
818: void
819: getinetproto(number)
820: int number;
821: {
1.24 deraadt 822: static int isopen;
1.32 mpech 823: struct protoent *pe;
1.1 deraadt 824:
1.24 deraadt 825: if (!isopen)
826: setprotoent(++isopen);
827: if ((pe = getprotobynumber(number)) != NULL)
828: printf(" %s", pe->p_name);
829: else
1.1 deraadt 830: printf(" %d", number);
831: }
832:
1.11 millert 833: int
1.40 deraadt 834: getfname(char *filename)
1.1 deraadt 835: {
1.68 millert 836: static struct statfs *mntbuf;
837: static int nmounts;
838: int i;
839: struct stat sb;
840: struct filearg *cur;
1.1 deraadt 841:
1.68 millert 842: if (stat(filename, &sb)) {
1.27 millert 843: warn("%s", filename);
1.68 millert 844: return (0);
1.1 deraadt 845: }
846:
1.68 millert 847: /*
848: * POSIX specifies "For block special devices, all processes using any
849: * file on that device are listed". However the -f flag description
850: * states "The report shall be only for the named files", so we only
851: * look up a block device if the -f flag has not be specified.
852: */
853: if (fuser && !fsflg && S_ISBLK(sb.st_mode)) {
854: if (mntbuf == NULL) {
855: nmounts = getmntinfo(&mntbuf, MNT_NOWAIT);
856: if (nmounts == -1)
857: err(1, "getmntinfo");
858: }
859: for (i = 0; i < nmounts; i++) {
860: if (!strcmp(mntbuf[i].f_mntfromname, filename)) {
861: if (stat(mntbuf[i].f_mntonname, &sb) == -1) {
862: warn("%s", filename);
863: return (0);
864: }
865: cflg = 1;
866: break;
867: }
868: }
869: }
870:
871: if ((cur = malloc(sizeof(*cur))) == NULL)
872: err(1, NULL);
873:
874: cur->ino = sb.st_ino;
875: cur->dev = sb.st_dev & 0xffff;
1.1 deraadt 876: cur->name = filename;
1.68 millert 877: TAILQ_INIT(&cur->fusers);
878: SLIST_INSERT_HEAD(&fileargs, cur, next);
879: return (1);
880: }
881:
882: int
883: signame_to_signum(char *sig)
884: {
885: int n;
886: const char *errstr = NULL;
887:
888: if (isdigit((unsigned char)*sig)) {
889: n = strtonum(sig, 0, NSIG - 1, &errstr);
890: return (errstr ? -1 : n);
891: }
892: if (!strncasecmp(sig, "sig", 3))
893: sig += 3;
894: for (n = 1; n < NSIG; n++) {
895: if (!strcasecmp(sys_signame[n], sig))
896: return (n);
897: }
898: return (-1);
1.1 deraadt 899: }
900:
901: void
1.40 deraadt 902: usage(void)
1.1 deraadt 903: {
1.68 millert 904: if (fuser) {
905: fprintf(stderr, "usage: fuser [-cfku] [-M core] "
906: "[-N system] [-s signal] file ...\n");
907: } else {
908: fprintf(stderr, "usage: fstat [-fnosv] [-M core] [-N system] "
909: "[-p pid] [-u user] [file ...]\n");
910: }
1.1 deraadt 911: exit(1);
912: }
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