Annotation of src/usr.bin/fstat/fstat.c, Revision 1.88
1.88 ! jca 1: /* $OpenBSD: fstat.c,v 1.87 2016/04/25 19:18:41 tedu 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... */
1.85 mestre 99: int cflg; /* fuser only */
1.68 millert 100:
1.85 mestre 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);
1.85 mestre 110: __dead void usage(void);
1.35 millert 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 *);
118: void print_inet6_details(struct kinfo_file *);
119: void print_sock_details(struct kinfo_file *);
120: void socktrans(struct kinfo_file *);
121: void vtrans(struct kinfo_file *);
1.47 deraadt 122: const char *inet6_addrstr(struct in6_addr *);
1.68 millert 123: int signame_to_signum(char *);
1.74 deraadt 124: void hide(void *p);
125:
126: int hideroot;
127:
128: void
129: hide(void *p)
130: {
131: printf("%p", hideroot ? NULL : p);
132: }
1.1 deraadt 133:
1.11 millert 134: int
1.40 deraadt 135: main(int argc, char *argv[])
1.1 deraadt 136: {
1.32 mpech 137: struct passwd *passwd;
1.76 guenther 138: struct kinfo_file *kf, *kflast;
1.1 deraadt 139: int arg, ch, what;
1.68 millert 140: char *memf, *nlistf, *optstr;
1.2 niklas 141: char buf[_POSIX2_LINE_MAX];
1.58 tedu 142: const char *errstr;
1.65 millert 143: int cnt, flags;
1.1 deraadt 144:
1.74 deraadt 145: hideroot = getuid();
146:
1.65 millert 147: arg = -1;
148: what = KERN_FILE_BYPID;
1.1 deraadt 149: nlistf = memf = NULL;
1.28 hugh 150: oflg = 0;
1.68 millert 151:
152: /* are we fstat(1) or fuser(1)? */
153: if (strcmp(__progname, "fuser") == 0) {
154: fuser = 1;
155: optstr = "cfks:uM:N:";
156: } else {
157: fuser = 0;
158: optstr = "fnop:su:vN:M:";
159: }
160:
161: /*
162: * fuser and fstat share three flags: -f, -s and -u. In both cases
163: * -f is a boolean, but for -u fstat wants an argument while fuser
164: * does not and for -s fuser wants an argument whereas fstat does not.
165: */
166: while ((ch = getopt(argc, argv, optstr)) != -1)
1.60 sobrado 167: switch ((char)ch) {
1.68 millert 168: case 'c':
169: if (fsflg)
170: usage();
171: cflg = 1;
172: break;
1.1 deraadt 173: case 'f':
1.68 millert 174: if (cflg)
175: usage();
1.1 deraadt 176: fsflg = 1;
177: break;
1.68 millert 178: case 'k':
179: sflg = 1;
180: signo = SIGKILL;
181: break;
1.1 deraadt 182: case 'M':
183: memf = optarg;
184: break;
185: case 'N':
186: nlistf = optarg;
187: break;
188: case 'n':
189: nflg = 1;
190: break;
1.28 hugh 191: case 'o':
192: oflg = 1;
193: break;
1.1 deraadt 194: case 'p':
195: if (pflg++)
196: usage();
1.58 tedu 197: arg = strtonum(optarg, 0, INT_MAX, &errstr);
198: if (errstr != NULL) {
1.74 deraadt 199: warnx("-p requires a process id, %s: %s",
1.58 tedu 200: errstr, optarg);
1.1 deraadt 201: usage();
202: }
1.65 millert 203: what = KERN_FILE_BYPID;
1.1 deraadt 204: break;
1.56 mickey 205: case 's':
206: sflg = 1;
1.68 millert 207: if (fuser) {
208: signo = signame_to_signum(optarg);
209: if (signo == -1) {
210: warnx("invalid signal %s", optarg);
211: usage();
212: }
213: }
1.56 mickey 214: break;
1.1 deraadt 215: case 'u':
216: if (uflg++)
217: usage();
1.68 millert 218: if (!fuser) {
1.69 nicm 219: if (!(passwd = getpwnam(optarg))) {
1.74 deraadt 220: arg = strtonum(optarg, 0, UID_MAX,
1.69 nicm 221: &errstr);
222: if (errstr != NULL) {
223: errx(1, "%s: unknown uid",
224: optarg);
225: }
226: } else
227: arg = passwd->pw_uid;
1.68 millert 228: what = KERN_FILE_BYUID;
229: }
1.1 deraadt 230: break;
231: case 'v':
232: vflg = 1;
233: break;
234: default:
235: usage();
236: }
237:
1.41 deraadt 238: /*
1.62 deraadt 239: * get the uid, for oflg and sflg
240: */
241: uid = getuid();
242:
243: /*
1.65 millert 244: * Use sysctl unless inspecting an alternate kernel.
1.41 deraadt 245: */
1.65 millert 246: if (nlistf == NULL || memf == NULL)
247: flags = KVM_NO_FILES;
248: else
249: flags = O_RDONLY;
1.41 deraadt 250:
1.65 millert 251: if ((kd = kvm_openfiles(nlistf, memf, NULL, flags, buf)) == NULL)
1.41 deraadt 252: errx(1, "%s", buf);
253:
1.1 deraadt 254: if (*(argv += optind)) {
255: for (; *argv; ++argv) {
256: if (getfname(*argv))
257: checkfile = 1;
258: }
1.68 millert 259: /* file(s) specified, but none accessible */
260: if (!checkfile)
1.1 deraadt 261: exit(1);
1.68 millert 262: } else if (fuser)
263: usage();
1.1 deraadt 264:
1.68 millert 265: if (!fuser && fsflg && !checkfile) {
266: /* fstat -f with no files means use wd */
1.1 deraadt 267: if (getfname(".") == 0)
268: exit(1);
269: checkfile = 1;
270: }
1.16 deraadt 271:
1.76 guenther 272: if ((kf = kvm_getfiles(kd, what, arg, sizeof(*kf), &cnt)) == NULL)
1.21 deraadt 273: errx(1, "%s", kvm_geterr(kd));
1.81 deraadt 274:
1.82 deraadt 275: if (fuser) {
1.86 semarie 276: /*
277: * fuser
278: * uflg: need "getpw"
279: * sflg: need "proc" (might call kill(2))
280: */
281: if (uflg && sflg) {
282: if (pledge("stdio rpath getpw proc", NULL) == -1)
283: err(1, "pledge");
284: } else if (uflg) {
285: if (pledge("stdio rpath getpw", NULL) == -1)
286: err(1, "pledge");
287: } else if (sflg) {
1.82 deraadt 288: if (pledge("stdio rpath proc", NULL) == -1)
289: err(1, "pledge");
290: } else {
291: if (pledge("stdio rpath", NULL) == -1)
292: err(1, "pledge");
293: }
294: } else {
1.86 semarie 295: /* fstat */
1.84 deraadt 296: if (pledge("stdio rpath getpw", NULL) == -1)
1.82 deraadt 297: err(1, "pledge");
298: }
1.68 millert 299:
1.72 guenther 300: find_splices(kf, cnt);
1.68 millert 301: if (!fuser)
302: fstat_header();
303: for (kflast = &kf[cnt]; kf < kflast; ++kf) {
304: if (fuser)
305: fuser_check(kf);
306: else
307: fstat_dofile(kf);
308: }
309: if (fuser)
310: fuser_run();
311:
312: exit(0);
313: }
314:
315: void
316: fstat_header(void)
317: {
1.1 deraadt 318: if (nflg)
319: printf("%s",
1.60 sobrado 320: "USER CMD PID FD DEV INUM MODE R/W SZ|DV");
1.1 deraadt 321: else
322: printf("%s",
1.60 sobrado 323: "USER CMD PID FD MOUNT INUM MODE R/W SZ|DV");
1.28 hugh 324: if (oflg)
325: printf("%s", ":OFFSET ");
1.1 deraadt 326: if (checkfile && fsflg == 0)
1.56 mickey 327: printf(" NAME");
328: if (sflg)
329: printf(" XFERS KBYTES");
330: putchar('\n');
1.1 deraadt 331: }
332:
333: char *Uname, *Comm;
1.62 deraadt 334: uid_t *procuid;
1.14 deraadt 335: pid_t Pid;
1.1 deraadt 336:
1.34 deraadt 337: #define PREFIX(i) do { \
1.39 mpech 338: printf("%-8.8s %-10s %5ld", Uname, Comm, (long)Pid); \
1.60 sobrado 339: switch (i) { \
1.65 millert 340: case KERN_FILE_TEXT: \
1.1 deraadt 341: printf(" text"); \
342: break; \
1.65 millert 343: case KERN_FILE_CDIR: \
1.1 deraadt 344: printf(" wd"); \
345: break; \
1.65 millert 346: case KERN_FILE_RDIR: \
1.1 deraadt 347: printf(" root"); \
348: break; \
1.65 millert 349: case KERN_FILE_TRACE: \
1.1 deraadt 350: printf(" tr"); \
351: break; \
352: default: \
353: printf(" %4d", i); \
354: break; \
1.34 deraadt 355: } \
356: } while (0)
1.1 deraadt 357:
358: /*
359: * print open files attributed to this process
360: */
361: void
1.76 guenther 362: fstat_dofile(struct kinfo_file *kf)
1.1 deraadt 363: {
364:
1.65 millert 365: Uname = user_from_uid(kf->p_uid, 0);
366: procuid = &kf->p_uid;
367: Pid = kf->p_pid;
368: Comm = kf->p_comm;
1.56 mickey 369:
1.65 millert 370: switch (kf->f_type) {
371: case DTYPE_VNODE:
372: vtrans(kf);
373: break;
374: case DTYPE_SOCKET:
1.67 miod 375: if (checkfile == 0)
376: socktrans(kf);
1.65 millert 377: break;
378: case DTYPE_PIPE:
1.67 miod 379: if (checkfile == 0)
380: pipetrans(kf);
1.65 millert 381: break;
382: case DTYPE_KQUEUE:
1.67 miod 383: if (checkfile == 0)
384: kqueuetrans(kf);
1.65 millert 385: break;
386: default:
387: if (vflg) {
388: warnx("unknown file type %d for file %d of pid %ld",
389: kf->f_type, kf->fd_fd, (long)Pid);
1.1 deraadt 390: }
1.65 millert 391: break;
1.1 deraadt 392: }
393: }
394:
395: void
1.76 guenther 396: vtrans(struct kinfo_file *kf)
1.1 deraadt 397: {
1.65 millert 398: const char *badtype = NULL;
399: char rw[3], mode[12];
400: char *filename = NULL;
401:
402: if (kf->v_type == VNON)
1.1 deraadt 403: badtype = "none";
1.65 millert 404: else if (kf->v_type == VBAD)
1.1 deraadt 405: badtype = "bad";
1.65 millert 406: else if (kf->v_tag == VT_NON && !(kf->v_flag & VCLONE))
407: badtype = "none"; /* not a clone */
408:
1.1 deraadt 409: if (checkfile) {
410: int fsmatch = 0;
1.68 millert 411: struct filearg *fa;
1.1 deraadt 412:
413: if (badtype)
414: return;
1.68 millert 415: SLIST_FOREACH(fa, &fileargs, next) {
416: if (fa->dev == kf->va_fsid) {
1.1 deraadt 417: fsmatch = 1;
1.68 millert 418: if (fa->ino == kf->va_fileid) {
419: filename = fa->name;
1.1 deraadt 420: break;
421: }
422: }
1.65 millert 423: }
1.1 deraadt 424: if (fsmatch == 0 || (filename == NULL && fsflg == 0))
425: return;
426: }
1.65 millert 427: PREFIX(kf->fd_fd);
1.1 deraadt 428: if (badtype) {
1.53 mickey 429: (void)printf(" - - %10s -\n", badtype);
1.1 deraadt 430: return;
431: }
1.61 thib 432:
1.1 deraadt 433: if (nflg)
1.65 millert 434: (void)printf(" %2ld,%-2ld", (long)major(kf->va_fsid),
435: (long)minor(kf->va_fsid));
436: else if (!(kf->v_flag & VCLONE))
437: (void)printf(" %-8s", kf->f_mntonname);
1.1 deraadt 438: else
1.73 mikeb 439: (void)printf(" clone ");
1.1 deraadt 440: if (nflg)
1.65 millert 441: (void)snprintf(mode, sizeof(mode), "%o", kf->va_mode);
1.1 deraadt 442: else
1.65 millert 443: strmode(kf->va_mode, mode);
444: printf(" %8llu %11s", kf->va_fileid, mode);
1.28 hugh 445: rw[0] = '\0';
1.65 millert 446: if (kf->f_flag & FREAD)
1.34 deraadt 447: strlcat(rw, "r", sizeof rw);
1.65 millert 448: if (kf->f_flag & FWRITE)
1.34 deraadt 449: strlcat(rw, "w", sizeof rw);
1.28 hugh 450: printf(" %2s", rw);
1.65 millert 451: switch (kf->v_type) {
1.1 deraadt 452: case VBLK:
453: case VCHR: {
454: char *name;
455:
1.65 millert 456: if (nflg || ((name = devname(kf->va_rdev,
457: kf->v_type == VCHR ? S_IFCHR : S_IFBLK)) == NULL))
458: printf(" %2d,%-3d", major(kf->va_rdev), minor(kf->va_rdev));
1.1 deraadt 459: else
1.28 hugh 460: printf(" %7s", name);
461: if (oflg)
462: printf(" ");
1.1 deraadt 463: break;
464: }
465: default:
1.65 millert 466: printf(" %8llu", kf->va_size);
1.62 deraadt 467: if (oflg) {
468: if (uid == 0 || uid == *procuid)
1.65 millert 469: printf(":%-8llu", kf->f_offset);
1.74 deraadt 470: else
1.62 deraadt 471: printf(":%-8s", "*");
472: }
473: }
474: if (sflg) {
475: if (uid == 0 || uid == *procuid) {
1.65 millert 476: printf(" %8llu %8llu",
1.74 deraadt 477: (kf->f_rxfer + kf->f_rwfer),
478: (kf->f_rbytes + kf->f_wbytes) / 1024);
1.62 deraadt 479: } else {
480: printf(" %8s %8s", "*", "*");
481: }
1.1 deraadt 482: }
483: if (filename && !fsflg)
1.28 hugh 484: printf(" %s", filename);
1.1 deraadt 485: putchar('\n');
486: }
487:
1.22 art 488: void
1.76 guenther 489: pipetrans(struct kinfo_file *kf)
1.22 art 490: {
491: void *maxaddr;
492:
1.65 millert 493: PREFIX(kf->fd_fd);
1.22 art 494:
495: printf(" ");
496:
497: /*
498: * We don't have enough space to fit both peer and own address, so
499: * we select the higher address so both ends of the pipe have the
500: * same visible addr. (it's the higher address because when the other
501: * end closes, it becomes 0)
502: */
1.80 deraadt 503: maxaddr = (void *)(uintptr_t)MAXIMUM(kf->f_data, kf->pipe_peer);
1.22 art 504:
1.74 deraadt 505: printf("pipe ");
506: hide(maxaddr);
1.75 bluhm 507: printf(" state: %s%s%s",
1.65 millert 508: (kf->pipe_state & PIPE_WANTR) ? "R" : "",
509: (kf->pipe_state & PIPE_WANTW) ? "W" : "",
510: (kf->pipe_state & PIPE_EOF) ? "E" : "");
1.56 mickey 511: if (sflg)
1.65 millert 512: printf("\t%8llu %8llu",
513: (kf->f_rxfer + kf->f_rwfer),
514: (kf->f_rbytes + kf->f_wbytes) / 1024);
1.56 mickey 515: printf("\n");
1.37 deraadt 516: return;
517: }
518:
519: void
1.76 guenther 520: kqueuetrans(struct kinfo_file *kf)
1.37 deraadt 521: {
1.65 millert 522: PREFIX(kf->fd_fd);
1.37 deraadt 523:
524: printf(" ");
525:
1.74 deraadt 526: printf("kqueue ");
527: hide((void *)(uintptr_t)kf->f_data);
528: printf(" %d state: %s%s\n",
1.65 millert 529: kf->kq_count,
530: (kf->kq_state & KQ_SEL) ? "S" : "",
531: (kf->kq_state & KQ_SLEEP) ? "W" : "");
1.22 art 532: return;
1.1 deraadt 533: }
534:
1.26 itojun 535: const char *
1.40 deraadt 536: inet6_addrstr(struct in6_addr *p)
1.26 itojun 537: {
538: struct sockaddr_in6 sin6;
539: static char hbuf[NI_MAXHOST];
1.50 itojun 540: const int niflags = NI_NUMERICHOST;
1.26 itojun 541:
542: memset(&sin6, 0, sizeof(sin6));
543: sin6.sin6_family = AF_INET6;
544: sin6.sin6_len = sizeof(struct sockaddr_in6);
545: sin6.sin6_addr = *p;
546: if (IN6_IS_ADDR_LINKLOCAL(p) &&
547: *(u_int16_t *)&sin6.sin6_addr.s6_addr[2] != 0) {
548: sin6.sin6_scope_id =
1.38 deraadt 549: ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
1.26 itojun 550: sin6.sin6_addr.s6_addr[2] = sin6.sin6_addr.s6_addr[3] = 0;
551: }
552:
553: if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
1.38 deraadt 554: hbuf, sizeof(hbuf), NULL, 0, niflags))
1.26 itojun 555: return "invalid";
556:
557: return hbuf;
558: }
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: void
1.76 guenther 643: print_inet6_details(struct kinfo_file *kf)
1.72 guenther 644: {
645: char xaddrbuf[NI_MAXHOST + 2];
646: struct in6_addr laddr6, faddr6;
647:
648: memcpy(&laddr6, kf->inp_laddru, sizeof(laddr6));
649: memcpy(&faddr6, kf->inp_faddru, sizeof(faddr6));
650: if (kf->so_protocol == IPPROTO_TCP) {
1.74 deraadt 651: printf(" ");
652: hide((void *)(uintptr_t)kf->inp_ppcb);
1.72 guenther 653: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
654: inet6_addrstr(&laddr6));
655: printf(" %s:%d",
656: IN6_IS_ADDR_UNSPECIFIED(&laddr6) ? "*" :
657: xaddrbuf, ntohs(kf->inp_lport));
658: if (kf->inp_fport) {
659: if (kf->so_state & SS_CONNECTOUT)
660: printf(" --> ");
661: else
662: printf(" <-- ");
663: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
664: inet6_addrstr(&faddr6));
665: printf("%s:%d",
666: IN6_IS_ADDR_UNSPECIFIED(&faddr6) ? "*" :
667: xaddrbuf, ntohs(kf->inp_fport));
668: }
669: } else if (kf->so_protocol == IPPROTO_UDP) {
670: snprintf(xaddrbuf, sizeof(xaddrbuf), "[%s]",
671: inet6_addrstr(&laddr6));
672: printf(" %s:%d",
673: IN6_IS_ADDR_UNSPECIFIED(&laddr6) ? "*" :
674: xaddrbuf, ntohs(kf->inp_lport));
675: if (kf->inp_fport) {
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: }
1.74 deraadt 682: } else if (kf->so_pcb) {
683: printf(" ");
684: hide((void *)(uintptr_t)kf->so_pcb);
685: }
1.72 guenther 686: }
687:
688: void
1.76 guenther 689: print_sock_details(struct kinfo_file *kf)
1.72 guenther 690: {
691: if (kf->so_family == AF_INET)
692: print_inet_details(kf);
693: else if (kf->so_family == AF_INET6)
694: print_inet6_details(kf);
695: }
696:
697: void
1.76 guenther 698: socktrans(struct kinfo_file *kf)
1.1 deraadt 699: {
700: static char *stypename[] = {
701: "unused", /* 0 */
1.38 deraadt 702: "stream", /* 1 */
1.1 deraadt 703: "dgram", /* 2 */
704: "raw", /* 3 */
705: "rdm", /* 4 */
706: "seqpak" /* 5 */
707: };
708: #define STYPEMAX 5
1.66 chl 709: char *stype, stypebuf[24];
1.1 deraadt 710:
1.65 millert 711: PREFIX(kf->fd_fd);
1.1 deraadt 712:
1.65 millert 713: if (kf->so_type > STYPEMAX) {
714: snprintf(stypebuf, sizeof(stypebuf), "?%d", kf->so_type);
715: stype = stypebuf;
716: } else {
717: stype = stypename[kf->so_type];
1.1 deraadt 718: }
719:
1.34 deraadt 720: /*
1.1 deraadt 721: * protocol specific formatting
722: *
723: * Try to find interesting things to print. For tcp, the interesting
724: * thing is the address of the tcpcb, for udp and others, just the
725: * inpcb (socket pcb). For unix domain, its the address of the socket
726: * pcb and the address of the connected pcb (if connected). Otherwise
727: * just print the protocol number and address of the socket itself.
728: * The idea is not to duplicate netstat, but to make available enough
729: * information for further analysis.
730: */
1.65 millert 731: switch (kf->so_family) {
1.1 deraadt 732: case AF_INET:
1.65 millert 733: printf("* internet %s", stype);
734: getinetproto(kf->so_protocol);
1.72 guenther 735: print_inet_details(kf);
1.1 deraadt 736: break;
1.26 itojun 737: case AF_INET6:
1.65 millert 738: printf("* internet6 %s", stype);
739: getinetproto(kf->so_protocol);
1.72 guenther 740: print_inet6_details(kf);
1.26 itojun 741: break;
1.1 deraadt 742: case AF_UNIX:
743: /* print address of pcb and connected pcb */
1.65 millert 744: printf("* unix %s", stype);
745: if (kf->so_pcb) {
1.74 deraadt 746: printf(" ");
747: hide((void *)(uintptr_t)kf->so_pcb);
1.65 millert 748: if (kf->unp_conn) {
1.1 deraadt 749: char shoconn[4], *cp;
750:
751: cp = shoconn;
1.65 millert 752: if (!(kf->so_state & SS_CANTRCVMORE))
1.1 deraadt 753: *cp++ = '<';
754: *cp++ = '-';
1.65 millert 755: if (!(kf->so_state & SS_CANTSENDMORE))
1.1 deraadt 756: *cp++ = '>';
757: *cp = '\0';
1.74 deraadt 758: printf(" %s ", shoconn);
759: hide((void *)(uintptr_t)kf->unp_conn);
1.1 deraadt 760: }
761: }
762: break;
1.65 millert 763: case AF_MPLS:
764: /* print protocol number and socket address */
765: printf("* mpls %s", stype);
1.74 deraadt 766: printf(" %d ", kf->so_protocol);
767: hide((void *)(uintptr_t)kf->f_data);
1.65 millert 768: break;
769: case AF_ROUTE:
770: /* print protocol number and socket address */
771: printf("* route %s", stype);
1.74 deraadt 772: printf(" %d ", kf->so_protocol);
773: hide((void *)(uintptr_t)kf->f_data);
1.65 millert 774: break;
1.1 deraadt 775: default:
776: /* print protocol number and socket address */
1.65 millert 777: printf("* %d %s", kf->so_family, stype);
1.74 deraadt 778: printf(" %d ", kf->so_protocol);
779: hide((void *)(uintptr_t)kf->f_data);
1.72 guenther 780: }
781: if (kf->so_splice != 0 || kf->so_splicelen == -1) {
1.76 guenther 782: struct kinfo_file *from, *to;
1.72 guenther 783:
784: from = splice_find('<', kf->f_data);
785: to = NULL;
786: if (kf->so_splice != 0)
787: to = splice_find('>', kf->so_splice);
788:
789: if (to != NULL && from == to) {
790: printf(" <==>");
791: print_sock_details(to);
792: } else if (kf->so_splice != 0) {
793: printf(" ==>");
794: if (to != NULL)
795: print_sock_details(to);
796: } else if (kf->so_splicelen == -1) {
797: printf(" <==");
798: if (from != NULL)
799: print_sock_details(from);
800: }
1.1 deraadt 801: }
1.56 mickey 802: if (sflg)
1.65 millert 803: printf("\t%8llu %8llu",
804: (kf->f_rxfer + kf->f_rwfer),
805: (kf->f_rbytes + kf->f_wbytes) / 1024);
1.1 deraadt 806: printf("\n");
807: }
808:
809: /*
810: * getinetproto --
811: * print name of protocol number
812: */
813: void
1.85 mestre 814: getinetproto(int number)
1.1 deraadt 815: {
1.24 deraadt 816: static int isopen;
1.32 mpech 817: struct protoent *pe;
1.1 deraadt 818:
1.24 deraadt 819: if (!isopen)
820: setprotoent(++isopen);
821: if ((pe = getprotobynumber(number)) != NULL)
822: printf(" %s", pe->p_name);
823: else
1.1 deraadt 824: printf(" %d", number);
825: }
826:
1.11 millert 827: int
1.40 deraadt 828: getfname(char *filename)
1.1 deraadt 829: {
1.68 millert 830: static struct statfs *mntbuf;
831: static int nmounts;
832: int i;
833: struct stat sb;
834: struct filearg *cur;
1.1 deraadt 835:
1.68 millert 836: if (stat(filename, &sb)) {
1.27 millert 837: warn("%s", filename);
1.68 millert 838: return (0);
1.1 deraadt 839: }
840:
1.68 millert 841: /*
842: * POSIX specifies "For block special devices, all processes using any
843: * file on that device are listed". However the -f flag description
844: * states "The report shall be only for the named files", so we only
845: * look up a block device if the -f flag has not be specified.
846: */
847: if (fuser && !fsflg && S_ISBLK(sb.st_mode)) {
848: if (mntbuf == NULL) {
849: nmounts = getmntinfo(&mntbuf, MNT_NOWAIT);
850: if (nmounts == -1)
851: err(1, "getmntinfo");
852: }
853: for (i = 0; i < nmounts; i++) {
854: if (!strcmp(mntbuf[i].f_mntfromname, filename)) {
855: if (stat(mntbuf[i].f_mntonname, &sb) == -1) {
856: warn("%s", filename);
857: return (0);
858: }
859: cflg = 1;
860: break;
861: }
862: }
863: }
864:
865: if ((cur = malloc(sizeof(*cur))) == NULL)
866: err(1, NULL);
867:
868: cur->ino = sb.st_ino;
869: cur->dev = sb.st_dev & 0xffff;
1.1 deraadt 870: cur->name = filename;
1.68 millert 871: TAILQ_INIT(&cur->fusers);
872: SLIST_INSERT_HEAD(&fileargs, cur, next);
873: return (1);
874: }
875:
876: int
877: signame_to_signum(char *sig)
878: {
879: int n;
880: const char *errstr = NULL;
881:
882: if (isdigit((unsigned char)*sig)) {
883: n = strtonum(sig, 0, NSIG - 1, &errstr);
884: return (errstr ? -1 : n);
885: }
886: if (!strncasecmp(sig, "sig", 3))
887: sig += 3;
888: for (n = 1; n < NSIG; n++) {
889: if (!strcasecmp(sys_signame[n], sig))
890: return (n);
891: }
892: return (-1);
1.1 deraadt 893: }
894:
895: void
1.40 deraadt 896: usage(void)
1.1 deraadt 897: {
1.68 millert 898: if (fuser) {
899: fprintf(stderr, "usage: fuser [-cfku] [-M core] "
900: "[-N system] [-s signal] file ...\n");
901: } else {
902: fprintf(stderr, "usage: fstat [-fnosv] [-M core] [-N system] "
903: "[-p pid] [-u user] [file ...]\n");
904: }
1.1 deraadt 905: exit(1);
906: }
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