Annotation of src/usr.bin/fstat/fstat.c, Revision 1.81
1.81 ! deraadt 1: /* $OpenBSD: fstat.c,v 1.80 2015/01/16 06:40:08 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:
1.80 deraadt 48: #include <sys/types.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:
1.80 deraadt 87: #define MAXIMUM(a, b) (((a) > (b)) ? (a) : (b))
88:
1.68 millert 89: struct fileargs fileargs = SLIST_HEAD_INITIALIZER(fileargs);
1.1 deraadt 90:
1.46 deraadt 91: int fsflg; /* show files on same filesystem as file(s) argument */
92: int pflg; /* show files open by a particular pid */
93: int uflg; /* show files open by a particular (effective) user */
1.38 deraadt 94: int checkfile; /* true if restricting to particular files or filesystems */
1.1 deraadt 95: int nflg; /* (numerical) display f.s. and rdev as dev_t */
1.28 hugh 96: int oflg; /* display file offset */
1.56 mickey 97: int sflg; /* display file xfer/bytes counters */
1.1 deraadt 98: int vflg; /* display errors in locating kernel data objects etc... */
1.68 millert 99: int cflg; /* fuser only */
100:
101: int fuser; /* 1 if we are fuser, 0 if we are fstat */
102: int signo; /* signal to send (fuser only) */
1.1 deraadt 103:
104: kvm_t *kd;
1.62 deraadt 105: uid_t uid;
1.1 deraadt 106:
1.76 guenther 107: void fstat_dofile(struct kinfo_file *);
1.68 millert 108: void fstat_header(void);
1.35 millert 109: void getinetproto(int);
110: void usage(void);
111: int getfname(char *);
1.76 guenther 112: void kqueuetrans(struct kinfo_file *);
113: void pipetrans(struct kinfo_file *);
114: struct kinfo_file *splice_find(char, u_int64_t);
115: void splice_insert(char, u_int64_t, struct kinfo_file *);
116: void find_splices(struct kinfo_file *, int);
117: void print_inet_details(struct kinfo_file *);
1.72 guenther 118: #ifdef INET6
1.76 guenther 119: void print_inet6_details(struct kinfo_file *);
1.72 guenther 120: #endif
1.76 guenther 121: void print_sock_details(struct kinfo_file *);
122: void socktrans(struct kinfo_file *);
123: void systracetrans(struct kinfo_file *);
124: void vtrans(struct kinfo_file *);
1.47 deraadt 125: const char *inet6_addrstr(struct in6_addr *);
1.68 millert 126: int signame_to_signum(char *);
1.74 deraadt 127: void hide(void *p);
128:
129: int hideroot;
130:
131: void
132: hide(void *p)
133: {
134: printf("%p", hideroot ? NULL : p);
135: }
1.1 deraadt 136:
1.11 millert 137: int
1.40 deraadt 138: main(int argc, char *argv[])
1.1 deraadt 139: {
1.32 mpech 140: struct passwd *passwd;
1.76 guenther 141: struct kinfo_file *kf, *kflast;
1.1 deraadt 142: int arg, ch, what;
1.68 millert 143: char *memf, *nlistf, *optstr;
1.2 niklas 144: char buf[_POSIX2_LINE_MAX];
1.58 tedu 145: const char *errstr;
1.65 millert 146: int cnt, flags;
1.1 deraadt 147:
1.74 deraadt 148: hideroot = getuid();
149:
1.65 millert 150: arg = -1;
151: what = KERN_FILE_BYPID;
1.1 deraadt 152: nlistf = memf = NULL;
1.28 hugh 153: oflg = 0;
1.68 millert 154:
155: /* are we fstat(1) or fuser(1)? */
156: if (strcmp(__progname, "fuser") == 0) {
157: fuser = 1;
158: optstr = "cfks:uM:N:";
159: } else {
160: fuser = 0;
161: optstr = "fnop:su:vN:M:";
162: }
163:
164: /*
165: * fuser and fstat share three flags: -f, -s and -u. In both cases
166: * -f is a boolean, but for -u fstat wants an argument while fuser
167: * does not and for -s fuser wants an argument whereas fstat does not.
168: */
169: while ((ch = getopt(argc, argv, optstr)) != -1)
1.60 sobrado 170: switch ((char)ch) {
1.68 millert 171: case 'c':
172: if (fsflg)
173: usage();
174: cflg = 1;
175: break;
1.1 deraadt 176: case 'f':
1.68 millert 177: if (cflg)
178: usage();
1.1 deraadt 179: fsflg = 1;
180: break;
1.68 millert 181: case 'k':
182: sflg = 1;
183: signo = SIGKILL;
184: break;
1.1 deraadt 185: case 'M':
186: memf = optarg;
187: break;
188: case 'N':
189: nlistf = optarg;
190: break;
191: case 'n':
192: nflg = 1;
193: break;
1.28 hugh 194: case 'o':
195: oflg = 1;
196: break;
1.1 deraadt 197: case 'p':
198: if (pflg++)
199: usage();
1.58 tedu 200: arg = strtonum(optarg, 0, INT_MAX, &errstr);
201: if (errstr != NULL) {
1.74 deraadt 202: warnx("-p requires a process id, %s: %s",
1.58 tedu 203: errstr, optarg);
1.1 deraadt 204: usage();
205: }
1.65 millert 206: what = KERN_FILE_BYPID;
1.1 deraadt 207: break;
1.56 mickey 208: case 's':
209: sflg = 1;
1.68 millert 210: if (fuser) {
211: signo = signame_to_signum(optarg);
212: if (signo == -1) {
213: warnx("invalid signal %s", optarg);
214: usage();
215: }
216: }
1.56 mickey 217: break;
1.1 deraadt 218: case 'u':
219: if (uflg++)
220: usage();
1.68 millert 221: if (!fuser) {
1.69 nicm 222: if (!(passwd = getpwnam(optarg))) {
1.74 deraadt 223: arg = strtonum(optarg, 0, UID_MAX,
1.69 nicm 224: &errstr);
225: if (errstr != NULL) {
226: errx(1, "%s: unknown uid",
227: optarg);
228: }
229: } else
230: arg = passwd->pw_uid;
1.68 millert 231: what = KERN_FILE_BYUID;
232: }
1.1 deraadt 233: break;
234: case 'v':
235: vflg = 1;
236: break;
237: default:
238: usage();
239: }
240:
1.41 deraadt 241: /*
1.62 deraadt 242: * get the uid, for oflg and sflg
243: */
244: uid = getuid();
245:
246: /*
1.65 millert 247: * Use sysctl unless inspecting an alternate kernel.
1.41 deraadt 248: */
1.65 millert 249: if (nlistf == NULL || memf == NULL)
250: flags = KVM_NO_FILES;
251: else
252: flags = O_RDONLY;
1.41 deraadt 253:
1.65 millert 254: if ((kd = kvm_openfiles(nlistf, memf, NULL, flags, buf)) == NULL)
1.41 deraadt 255: errx(1, "%s", buf);
256:
1.1 deraadt 257: if (*(argv += optind)) {
258: for (; *argv; ++argv) {
259: if (getfname(*argv))
260: checkfile = 1;
261: }
1.68 millert 262: /* file(s) specified, but none accessible */
263: if (!checkfile)
1.1 deraadt 264: exit(1);
1.68 millert 265: } else if (fuser)
266: usage();
1.1 deraadt 267:
1.68 millert 268: if (!fuser && fsflg && !checkfile) {
269: /* fstat -f with no files means use wd */
1.1 deraadt 270: if (getfname(".") == 0)
271: exit(1);
272: checkfile = 1;
273: }
1.16 deraadt 274:
1.76 guenther 275: if ((kf = kvm_getfiles(kd, what, arg, sizeof(*kf), &cnt)) == NULL)
1.21 deraadt 276: errx(1, "%s", kvm_geterr(kd));
1.81 ! deraadt 277:
! 278: if (pledge("stdio rpath route", NULL) == -1)
! 279: err(1, "pledge");
1.68 millert 280:
1.72 guenther 281: find_splices(kf, cnt);
1.68 millert 282: if (!fuser)
283: fstat_header();
284: for (kflast = &kf[cnt]; kf < kflast; ++kf) {
285: if (fuser)
286: fuser_check(kf);
287: else
288: fstat_dofile(kf);
289: }
290: if (fuser)
291: fuser_run();
292:
293: exit(0);
294: }
295:
296: void
297: fstat_header(void)
298: {
1.1 deraadt 299: if (nflg)
300: printf("%s",
1.60 sobrado 301: "USER CMD PID FD DEV INUM MODE R/W SZ|DV");
1.1 deraadt 302: else
303: printf("%s",
1.60 sobrado 304: "USER CMD PID FD MOUNT INUM MODE R/W SZ|DV");
1.28 hugh 305: if (oflg)
306: printf("%s", ":OFFSET ");
1.1 deraadt 307: if (checkfile && fsflg == 0)
1.56 mickey 308: printf(" NAME");
309: if (sflg)
310: printf(" XFERS KBYTES");
311: putchar('\n');
1.1 deraadt 312: }
313:
314: char *Uname, *Comm;
1.62 deraadt 315: uid_t *procuid;
1.14 deraadt 316: pid_t Pid;
1.1 deraadt 317:
1.34 deraadt 318: #define PREFIX(i) do { \
1.39 mpech 319: printf("%-8.8s %-10s %5ld", Uname, Comm, (long)Pid); \
1.60 sobrado 320: switch (i) { \
1.65 millert 321: case KERN_FILE_TEXT: \
1.1 deraadt 322: printf(" text"); \
323: break; \
1.65 millert 324: case KERN_FILE_CDIR: \
1.1 deraadt 325: printf(" wd"); \
326: break; \
1.65 millert 327: case KERN_FILE_RDIR: \
1.1 deraadt 328: printf(" root"); \
329: break; \
1.65 millert 330: case KERN_FILE_TRACE: \
1.1 deraadt 331: printf(" tr"); \
332: break; \
333: default: \
334: printf(" %4d", i); \
335: break; \
1.34 deraadt 336: } \
337: } while (0)
1.1 deraadt 338:
339: /*
340: * print open files attributed to this process
341: */
342: void
1.76 guenther 343: fstat_dofile(struct kinfo_file *kf)
1.1 deraadt 344: {
345:
1.65 millert 346: Uname = user_from_uid(kf->p_uid, 0);
347: procuid = &kf->p_uid;
348: Pid = kf->p_pid;
349: Comm = kf->p_comm;
1.56 mickey 350:
1.65 millert 351: switch (kf->f_type) {
352: case DTYPE_VNODE:
353: vtrans(kf);
354: break;
355: case DTYPE_SOCKET:
1.67 miod 356: if (checkfile == 0)
357: socktrans(kf);
1.65 millert 358: break;
359: case DTYPE_PIPE:
1.67 miod 360: if (checkfile == 0)
361: pipetrans(kf);
1.65 millert 362: break;
363: case DTYPE_KQUEUE:
1.67 miod 364: if (checkfile == 0)
365: kqueuetrans(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
1.76 guenther 381: vtrans(struct kinfo_file *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
1.76 guenther 474: pipetrans(struct kinfo_file *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: */
1.80 deraadt 488: maxaddr = (void *)(uintptr_t)MAXIMUM(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
1.76 guenther 505: kqueuetrans(struct kinfo_file *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
1.76 guenther 521: systracetrans(struct kinfo_file *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("systrace ");
528: hide((void *)(uintptr_t)kf->f_data);
529: printf(" npol %d\n", kf->str_npolicies);
1.22 art 530: return;
1.1 deraadt 531: }
532:
1.26 itojun 533: #ifdef INET6
534: const char *
1.40 deraadt 535: inet6_addrstr(struct in6_addr *p)
1.26 itojun 536: {
537: struct sockaddr_in6 sin6;
538: static char hbuf[NI_MAXHOST];
1.50 itojun 539: const int niflags = NI_NUMERICHOST;
1.26 itojun 540:
541: memset(&sin6, 0, sizeof(sin6));
542: sin6.sin6_family = AF_INET6;
543: sin6.sin6_len = sizeof(struct sockaddr_in6);
544: sin6.sin6_addr = *p;
545: if (IN6_IS_ADDR_LINKLOCAL(p) &&
546: *(u_int16_t *)&sin6.sin6_addr.s6_addr[2] != 0) {
547: sin6.sin6_scope_id =
1.38 deraadt 548: ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
1.26 itojun 549: sin6.sin6_addr.s6_addr[2] = sin6.sin6_addr.s6_addr[3] = 0;
550: }
551:
552: if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
1.38 deraadt 553: hbuf, sizeof(hbuf), NULL, 0, niflags))
1.26 itojun 554: return "invalid";
555:
556: return hbuf;
557: }
558: #endif
559:
1.1 deraadt 560: void
1.76 guenther 561: splice_insert(char type, u_int64_t ptr, struct kinfo_file *data)
1.72 guenther 562: {
563: ENTRY entry, *found;
564:
1.74 deraadt 565: if (asprintf(&entry.key, "%c%llx", type, hideroot ? 0 : ptr) == -1)
1.72 guenther 566: err(1, NULL);
567: entry.data = data;
568: if ((found = hsearch(entry, ENTER)) == NULL)
569: err(1, "hsearch");
570: /* if it's ambiguous, set the data to NULL */
571: if (found->data != data)
572: found->data = NULL;
573: }
574:
1.76 guenther 575: struct kinfo_file *
1.72 guenther 576: splice_find(char type, u_int64_t ptr)
577: {
578: ENTRY entry, *found;
579: char buf[20];
580:
1.74 deraadt 581: snprintf(buf, sizeof(buf), "%c%llx", type, hideroot ? 0 : ptr);
1.72 guenther 582: entry.key = buf;
583: found = hsearch(entry, FIND);
584: return (found != NULL ? found->data : NULL);
585: }
586:
587: void
1.76 guenther 588: find_splices(struct kinfo_file *kf, int cnt)
1.72 guenther 589: {
590: int i, created;
591:
592: created = 0;
593: for (i = 0; i < cnt; i++) {
594: if (kf[i].f_type != DTYPE_SOCKET ||
595: (kf[i].so_splice == 0 && kf[i].so_splicelen != -1))
596: continue;
597: if (created++ == 0) {
598: if (hcreate(1000) == 0)
599: err(1, "hcreate");
600: }
601: splice_insert('>', kf[i].f_data, &kf[i]);
602: if (kf[i].so_splice != 0)
603: splice_insert('<', kf[i].so_splice, &kf[i]);
604: }
605: }
606:
607: void
1.76 guenther 608: print_inet_details(struct kinfo_file *kf)
1.72 guenther 609: {
610: struct in_addr laddr, faddr;
611:
612: memcpy(&laddr, kf->inp_laddru, sizeof(laddr));
613: memcpy(&faddr, kf->inp_faddru, sizeof(faddr));
614: if (kf->so_protocol == IPPROTO_TCP) {
1.74 deraadt 615: printf(" ");
616: hide((void *)(uintptr_t)kf->inp_ppcb);
1.72 guenther 617: printf(" %s:%d", laddr.s_addr == INADDR_ANY ? "*" :
618: inet_ntoa(laddr), ntohs(kf->inp_lport));
619: if (kf->inp_fport) {
620: if (kf->so_state & SS_CONNECTOUT)
621: printf(" --> ");
622: else
623: printf(" <-- ");
624: printf("%s:%d",
625: faddr.s_addr == INADDR_ANY ? "*" :
626: inet_ntoa(faddr), ntohs(kf->inp_fport));
627: }
628: } else if (kf->so_protocol == IPPROTO_UDP) {
629: printf(" %s:%d", laddr.s_addr == INADDR_ANY ? "*" :
630: inet_ntoa(laddr), ntohs(kf->inp_lport));
631: if (kf->inp_fport) {
632: printf(" <-> %s:%d",
633: faddr.s_addr == INADDR_ANY ? "*" :
634: inet_ntoa(faddr), ntohs(kf->inp_fport));
635: }
1.74 deraadt 636: } else if (kf->so_pcb) {
637: printf(" ");
638: hide((void *)(uintptr_t)kf->so_pcb);
639: }
1.72 guenther 640: }
641:
642: #ifdef INET6
643: void
1.76 guenther 644: print_inet6_details(struct kinfo_file *kf)
1.72 guenther 645: {
646: char xaddrbuf[NI_MAXHOST + 2];
647: struct in6_addr laddr6, faddr6;
648:
649: memcpy(&laddr6, kf->inp_laddru, sizeof(laddr6));
650: memcpy(&faddr6, kf->inp_faddru, sizeof(faddr6));
651: if (kf->so_protocol == IPPROTO_TCP) {
1.74 deraadt 652: printf(" ");
653: hide((void *)(uintptr_t)kf->inp_ppcb);
1.72 guenther 654: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
655: inet6_addrstr(&laddr6));
656: printf(" %s:%d",
657: IN6_IS_ADDR_UNSPECIFIED(&laddr6) ? "*" :
658: xaddrbuf, ntohs(kf->inp_lport));
659: if (kf->inp_fport) {
660: if (kf->so_state & SS_CONNECTOUT)
661: printf(" --> ");
662: else
663: printf(" <-- ");
664: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
665: inet6_addrstr(&faddr6));
666: printf("%s:%d",
667: IN6_IS_ADDR_UNSPECIFIED(&faddr6) ? "*" :
668: xaddrbuf, ntohs(kf->inp_fport));
669: }
670: } else if (kf->so_protocol == IPPROTO_UDP) {
671: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
672: inet6_addrstr(&laddr6));
673: printf(" %s:%d",
674: IN6_IS_ADDR_UNSPECIFIED(&laddr6) ? "*" :
675: xaddrbuf, ntohs(kf->inp_lport));
676: if (kf->inp_fport) {
677: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
678: inet6_addrstr(&faddr6));
679: printf(" <-> %s:%d",
680: IN6_IS_ADDR_UNSPECIFIED(&faddr6) ? "*" :
681: xaddrbuf, ntohs(kf->inp_fport));
682: }
1.74 deraadt 683: } else if (kf->so_pcb) {
684: printf(" ");
685: hide((void *)(uintptr_t)kf->so_pcb);
686: }
1.72 guenther 687: }
688: #endif
689:
690: void
1.76 guenther 691: print_sock_details(struct kinfo_file *kf)
1.72 guenther 692: {
693: if (kf->so_family == AF_INET)
694: print_inet_details(kf);
695: #ifdef INET6
696: else if (kf->so_family == AF_INET6)
697: print_inet6_details(kf);
698: #endif
699: }
700:
701: void
1.76 guenther 702: socktrans(struct kinfo_file *kf)
1.1 deraadt 703: {
704: static char *stypename[] = {
705: "unused", /* 0 */
1.38 deraadt 706: "stream", /* 1 */
1.1 deraadt 707: "dgram", /* 2 */
708: "raw", /* 3 */
709: "rdm", /* 4 */
710: "seqpak" /* 5 */
711: };
712: #define STYPEMAX 5
1.66 chl 713: char *stype, stypebuf[24];
1.1 deraadt 714:
1.65 millert 715: PREFIX(kf->fd_fd);
1.1 deraadt 716:
1.65 millert 717: if (kf->so_type > STYPEMAX) {
718: snprintf(stypebuf, sizeof(stypebuf), "?%d", kf->so_type);
719: stype = stypebuf;
720: } else {
721: stype = stypename[kf->so_type];
1.1 deraadt 722: }
723:
1.34 deraadt 724: /*
1.1 deraadt 725: * protocol specific formatting
726: *
727: * Try to find interesting things to print. For tcp, the interesting
728: * thing is the address of the tcpcb, for udp and others, just the
729: * inpcb (socket pcb). For unix domain, its the address of the socket
730: * pcb and the address of the connected pcb (if connected). Otherwise
731: * just print the protocol number and address of the socket itself.
732: * The idea is not to duplicate netstat, but to make available enough
733: * information for further analysis.
734: */
1.65 millert 735: switch (kf->so_family) {
1.1 deraadt 736: case AF_INET:
1.65 millert 737: printf("* internet %s", stype);
738: getinetproto(kf->so_protocol);
1.72 guenther 739: print_inet_details(kf);
1.1 deraadt 740: break;
1.26 itojun 741: #ifdef INET6
742: case AF_INET6:
1.65 millert 743: printf("* internet6 %s", stype);
744: getinetproto(kf->so_protocol);
1.72 guenther 745: print_inet6_details(kf);
1.26 itojun 746: break;
747: #endif
1.1 deraadt 748: case AF_UNIX:
749: /* print address of pcb and connected pcb */
1.65 millert 750: printf("* unix %s", stype);
751: if (kf->so_pcb) {
1.74 deraadt 752: printf(" ");
753: hide((void *)(uintptr_t)kf->so_pcb);
1.65 millert 754: if (kf->unp_conn) {
1.1 deraadt 755: char shoconn[4], *cp;
756:
757: cp = shoconn;
1.65 millert 758: if (!(kf->so_state & SS_CANTRCVMORE))
1.1 deraadt 759: *cp++ = '<';
760: *cp++ = '-';
1.65 millert 761: if (!(kf->so_state & SS_CANTSENDMORE))
1.1 deraadt 762: *cp++ = '>';
763: *cp = '\0';
1.74 deraadt 764: printf(" %s ", shoconn);
765: hide((void *)(uintptr_t)kf->unp_conn);
1.1 deraadt 766: }
767: }
768: break;
1.65 millert 769: case AF_MPLS:
770: /* print protocol number and socket address */
771: printf("* mpls %s", stype);
1.74 deraadt 772: printf(" %d ", kf->so_protocol);
773: hide((void *)(uintptr_t)kf->f_data);
1.65 millert 774: break;
775: case AF_ROUTE:
776: /* print protocol number and socket address */
777: printf("* route %s", stype);
1.74 deraadt 778: printf(" %d ", kf->so_protocol);
779: hide((void *)(uintptr_t)kf->f_data);
1.65 millert 780: break;
1.1 deraadt 781: default:
782: /* print protocol number and socket address */
1.65 millert 783: printf("* %d %s", kf->so_family, stype);
1.74 deraadt 784: printf(" %d ", kf->so_protocol);
785: hide((void *)(uintptr_t)kf->f_data);
1.72 guenther 786: }
787: if (kf->so_splice != 0 || kf->so_splicelen == -1) {
1.76 guenther 788: struct kinfo_file *from, *to;
1.72 guenther 789:
790: from = splice_find('<', kf->f_data);
791: to = NULL;
792: if (kf->so_splice != 0)
793: to = splice_find('>', kf->so_splice);
794:
795: if (to != NULL && from == to) {
796: printf(" <==>");
797: print_sock_details(to);
798: } else if (kf->so_splice != 0) {
799: printf(" ==>");
800: if (to != NULL)
801: print_sock_details(to);
802: } else if (kf->so_splicelen == -1) {
803: printf(" <==");
804: if (from != NULL)
805: print_sock_details(from);
806: }
1.1 deraadt 807: }
1.56 mickey 808: if (sflg)
1.65 millert 809: printf("\t%8llu %8llu",
810: (kf->f_rxfer + kf->f_rwfer),
811: (kf->f_rbytes + kf->f_wbytes) / 1024);
1.1 deraadt 812: printf("\n");
813: }
814:
815: /*
816: * getinetproto --
817: * print name of protocol number
818: */
819: void
820: getinetproto(number)
821: int number;
822: {
1.24 deraadt 823: static int isopen;
1.32 mpech 824: struct protoent *pe;
1.1 deraadt 825:
1.24 deraadt 826: if (!isopen)
827: setprotoent(++isopen);
828: if ((pe = getprotobynumber(number)) != NULL)
829: printf(" %s", pe->p_name);
830: else
1.1 deraadt 831: printf(" %d", number);
832: }
833:
1.11 millert 834: int
1.40 deraadt 835: getfname(char *filename)
1.1 deraadt 836: {
1.68 millert 837: static struct statfs *mntbuf;
838: static int nmounts;
839: int i;
840: struct stat sb;
841: struct filearg *cur;
1.1 deraadt 842:
1.68 millert 843: if (stat(filename, &sb)) {
1.27 millert 844: warn("%s", filename);
1.68 millert 845: return (0);
1.1 deraadt 846: }
847:
1.68 millert 848: /*
849: * POSIX specifies "For block special devices, all processes using any
850: * file on that device are listed". However the -f flag description
851: * states "The report shall be only for the named files", so we only
852: * look up a block device if the -f flag has not be specified.
853: */
854: if (fuser && !fsflg && S_ISBLK(sb.st_mode)) {
855: if (mntbuf == NULL) {
856: nmounts = getmntinfo(&mntbuf, MNT_NOWAIT);
857: if (nmounts == -1)
858: err(1, "getmntinfo");
859: }
860: for (i = 0; i < nmounts; i++) {
861: if (!strcmp(mntbuf[i].f_mntfromname, filename)) {
862: if (stat(mntbuf[i].f_mntonname, &sb) == -1) {
863: warn("%s", filename);
864: return (0);
865: }
866: cflg = 1;
867: break;
868: }
869: }
870: }
871:
872: if ((cur = malloc(sizeof(*cur))) == NULL)
873: err(1, NULL);
874:
875: cur->ino = sb.st_ino;
876: cur->dev = sb.st_dev & 0xffff;
1.1 deraadt 877: cur->name = filename;
1.68 millert 878: TAILQ_INIT(&cur->fusers);
879: SLIST_INSERT_HEAD(&fileargs, cur, next);
880: return (1);
881: }
882:
883: int
884: signame_to_signum(char *sig)
885: {
886: int n;
887: const char *errstr = NULL;
888:
889: if (isdigit((unsigned char)*sig)) {
890: n = strtonum(sig, 0, NSIG - 1, &errstr);
891: return (errstr ? -1 : n);
892: }
893: if (!strncasecmp(sig, "sig", 3))
894: sig += 3;
895: for (n = 1; n < NSIG; n++) {
896: if (!strcasecmp(sys_signame[n], sig))
897: return (n);
898: }
899: return (-1);
1.1 deraadt 900: }
901:
902: void
1.40 deraadt 903: usage(void)
1.1 deraadt 904: {
1.68 millert 905: if (fuser) {
906: fprintf(stderr, "usage: fuser [-cfku] [-M core] "
907: "[-N system] [-s signal] file ...\n");
908: } else {
909: fprintf(stderr, "usage: fstat [-fnosv] [-M core] [-N system] "
910: "[-p pid] [-u user] [file ...]\n");
911: }
1.1 deraadt 912: exit(1);
913: }
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