2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2009 Stanislav Sedov <stas@FreeBSD.org>
5 * Copyright (c) 1988, 1993
6 * The Regents of the University of California. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #include <sys/cdefs.h>
34 #include <sys/param.h>
37 #include <sys/socket.h>
38 #include <sys/socketvar.h>
39 #include <sys/sysctl.h>
40 #include <sys/queue.h>
43 #include <netinet/in.h>
45 #include <arpa/inet.h>
50 #include <libprocstat.h>
61 #include "functions.h"
63 static int fsflg, /* show files on same filesystem as file(s) argument */
64 pflg, /* show files open by a particular pid */
65 sflg, /* show socket details */
66 uflg; /* show files open by a particular (effective) user */
67 static int checkfile; /* restrict to particular files or filesystems */
68 static int nflg; /* (numerical) display f.s. and rdev as dev_t */
69 static int mflg; /* include memory-mapped files */
70 static int vflg; /* be verbose */
80 static char *memf, *nlistf;
82 static int getfname(const char *filename);
83 static void dofiles(struct procstat *procstat, struct kinfo_proc *p);
84 static void print_access_flags(int flags);
85 static void print_file_info(struct procstat *procstat,
86 struct filestat *fst, const char *uname, const char *cmd, int pid);
87 static void print_pipe_info(struct procstat *procstat,
88 struct filestat *fst);
89 static void print_pts_info(struct procstat *procstat,
90 struct filestat *fst);
91 static void print_sem_info(struct procstat *procstat,
92 struct filestat *fst);
93 static void print_shm_info(struct procstat *procstat,
94 struct filestat *fst);
95 static void print_socket_info(struct procstat *procstat,
96 struct filestat *fst);
97 static void print_vnode_info(struct procstat *procstat,
98 struct filestat *fst);
99 static void usage(void) __dead2;
102 do_fstat(int argc, char **argv)
104 struct kinfo_proc *p;
105 struct passwd *passwd;
106 struct procstat *procstat;
111 what = KERN_PROC_PROC;
112 nlistf = memf = NULL;
113 while ((ch = getopt(argc, argv, "fmnp:su:vN:M:")) != -1)
133 if (!isdigit(*optarg)) {
134 warnx("-p requires a process id");
137 what = KERN_PROC_PID;
146 if (!(passwd = getpwnam(optarg)))
147 errx(1, "%s: unknown uid", optarg);
148 what = KERN_PROC_UID;
149 arg = passwd->pw_uid;
159 if (*(argv += optind)) {
160 for (; *argv; ++argv) {
164 if (!checkfile) /* file(s) specified, but none accessible */
168 if (fsflg && !checkfile) {
169 /* -f with no files means use wd */
170 if (getfname(".") == 0)
176 procstat = procstat_open_kvm(nlistf, memf);
178 procstat = procstat_open_sysctl();
179 if (procstat == NULL)
180 errx(1, "procstat_open()");
181 p = procstat_getprocs(procstat, what, arg, &cnt);
183 errx(1, "procstat_getprocs()");
190 "USER CMD PID FD DEV INUM MODE SZ|DV R/W");
193 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W");
194 if (checkfile && fsflg == 0)
200 * Go through the process list.
202 for (i = 0; i < cnt; i++) {
203 if (p[i].ki_stat == SZOMB)
205 dofiles(procstat, &p[i]);
207 procstat_freeprocs(procstat, p);
208 procstat_close(procstat);
213 dofiles(struct procstat *procstat, struct kinfo_proc *kp)
217 struct filestat *fst;
218 struct filestat_list *head;
221 uname = user_from_uid(kp->ki_uid, 0);
225 head = procstat_getfiles(procstat, kp, mflg);
228 STAILQ_FOREACH(fst, head, next)
229 print_file_info(procstat, fst, uname, cmd, pid);
230 procstat_freefiles(procstat, head);
235 print_file_info(struct procstat *procstat, struct filestat *fst,
236 const char *uname, const char *cmd, int pid)
240 const char *filename;
241 int error, fsmatch = 0;
242 char errbuf[_POSIX2_LINE_MAX];
245 if (checkfile != 0) {
246 if (fst->fs_type != PS_FST_TYPE_VNODE &&
247 fst->fs_type != PS_FST_TYPE_FIFO)
249 error = procstat_get_vnode_info(procstat, fst, &vn, errbuf);
253 for (d = devs; d != NULL; d = d->next)
254 if (d->fsid == vn.vn_fsid) {
256 if (d->ino == vn.vn_fileid) {
261 if (fsmatch == 0 || (filename == NULL && fsflg == 0))
266 * Print entry prefix.
268 printf("%-8.8s %-10s %5d", uname, cmd, pid);
269 if (fst->fs_uflags & PS_FST_UFLAG_TEXT)
271 else if (fst->fs_uflags & PS_FST_UFLAG_CDIR)
273 else if (fst->fs_uflags & PS_FST_UFLAG_RDIR)
275 else if (fst->fs_uflags & PS_FST_UFLAG_TRACE)
277 else if (fst->fs_uflags & PS_FST_UFLAG_MMAP)
279 else if (fst->fs_uflags & PS_FST_UFLAG_JAIL)
281 else if (fst->fs_uflags & PS_FST_UFLAG_CTTY)
284 printf(" %4d", fst->fs_fd);
287 * Print type-specific data.
289 switch (fst->fs_type) {
290 case PS_FST_TYPE_FIFO:
291 case PS_FST_TYPE_VNODE:
292 print_vnode_info(procstat, fst);
294 case PS_FST_TYPE_SOCKET:
295 print_socket_info(procstat, fst);
297 case PS_FST_TYPE_PIPE:
298 print_pipe_info(procstat, fst);
300 case PS_FST_TYPE_PTS:
301 print_pts_info(procstat, fst);
303 case PS_FST_TYPE_SHM:
304 print_shm_info(procstat, fst);
306 case PS_FST_TYPE_SEM:
307 print_sem_info(procstat, fst);
309 case PS_FST_TYPE_DEV:
314 "unknown file type %d for file %d of pid %d\n",
315 fst->fs_type, fst->fs_fd, pid);
317 if (filename && !fsflg)
318 printf(" %s", filename);
323 addr_to_string(struct sockaddr_storage *ss, char *buffer, int buflen)
325 char buffer2[INET6_ADDRSTRLEN];
326 struct sockaddr_in6 *sin6;
327 struct sockaddr_in *sin;
328 struct sockaddr_un *sun;
330 switch (ss->ss_family) {
332 sun = (struct sockaddr_un *)ss;
333 if (strlen(sun->sun_path) == 0)
334 strlcpy(buffer, "-", buflen);
336 strlcpy(buffer, sun->sun_path, buflen);
340 sin = (struct sockaddr_in *)ss;
341 if (sin->sin_addr.s_addr == INADDR_ANY)
342 snprintf(buffer, buflen, "%s:%d", "*",
343 ntohs(sin->sin_port));
344 else if (inet_ntop(AF_INET, &sin->sin_addr, buffer2,
345 sizeof(buffer2)) != NULL)
346 snprintf(buffer, buflen, "%s:%d", buffer2,
347 ntohs(sin->sin_port));
351 sin6 = (struct sockaddr_in6 *)ss;
352 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr))
353 snprintf(buffer, buflen, "%s.%d", "*",
354 ntohs(sin6->sin6_port));
355 else if (inet_ntop(AF_INET6, &sin6->sin6_addr, buffer2,
356 sizeof(buffer2)) != NULL)
357 snprintf(buffer, buflen, "%s.%d", buffer2,
358 ntohs(sin6->sin6_port));
360 strlcpy(buffer, "-", buflen);
364 strlcpy(buffer, "", buflen);
372 print_socket_info(struct procstat *procstat, struct filestat *fst)
374 static const char *stypename[] = {
383 struct sockstat sock;
385 char errbuf[_POSIX2_LINE_MAX];
386 char src_addr[PATH_MAX], dst_addr[PATH_MAX];
387 struct sockaddr_un *sun;
391 error = procstat_get_socket_info(procstat, fst, &sock, errbuf);
396 if (sock.type > STYPEMAX)
397 printf("* %s ?%d", sock.dname, sock.type);
399 printf("* %s %s", sock.dname, stypename[sock.type]);
402 * protocol specific formatting
404 * Try to find interesting things to print. For tcp, the interesting
405 * thing is the address of the tcpcb, for udp and others, just the
406 * inpcb (socket pcb). For unix domain, its the address of the socket
407 * pcb and the address of the connected pcb (if connected). Otherwise
408 * just print the protocol number and address of the socket itself.
409 * The idea is not to duplicate netstat, but to make available enough
410 * information for further analysis.
412 switch (sock.dom_family) {
416 setprotoent(++isopen);
417 if ((pe = getprotobynumber(sock.proto)) != NULL)
418 printf(" %s", pe->p_name);
420 printf(" %d", sock.proto);
421 if (sock.proto == IPPROTO_TCP ) {
422 if (sock.inp_ppcb != 0)
423 printf(" %lx", (u_long)sock.inp_ppcb);
425 else if (sock.so_pcb != 0)
426 printf(" %lx", (u_long)sock.so_pcb);
430 addr_to_string(&sock.sa_local, src_addr, sizeof(src_addr)),
431 addr_to_string(&sock.sa_peer, dst_addr, sizeof(dst_addr)));
434 /* print address of pcb and connected pcb */
435 if (sock.so_pcb != 0) {
436 printf(" %lx", (u_long)sock.so_pcb);
438 char shoconn[4], *cp;
441 if (!(sock.so_rcv_sb_state & SBS_CANTRCVMORE))
444 if (!(sock.so_snd_sb_state & SBS_CANTSENDMORE))
447 printf(" %s %lx", shoconn,
448 (u_long)sock.unp_conn);
453 sun = (struct sockaddr_un *)&sock.sa_local;
455 * While generally we like to print two addresses,
456 * local and peer, for sockets, it turns out to be
457 * more useful to print the first non-null address for
458 * local sockets, as typically they aren't bound and
459 * connected, and the path strings can get long.
461 if (sun->sun_path[0] != 0)
462 addr_to_string(&sock.sa_local,
463 src_addr, sizeof(src_addr));
465 addr_to_string(&sock.sa_peer,
466 src_addr, sizeof(src_addr));
467 printf(" %s", src_addr);
470 /* print protocol number and socket address */
471 printf(" %d %lx", sock.proto, (u_long)sock.so_addr);
476 print_pipe_info(struct procstat *procstat, struct filestat *fst)
479 char errbuf[_POSIX2_LINE_MAX];
482 error = procstat_get_pipe_info(procstat, fst, &ps, errbuf);
487 printf("* pipe %8lx <-> %8lx", (u_long)ps.addr, (u_long)ps.peer);
488 printf(" %6zd", ps.buffer_cnt);
489 print_access_flags(fst->fs_fflags);
493 print_pts_info(struct procstat *procstat, struct filestat *fst)
496 char errbuf[_POSIX2_LINE_MAX];
499 error = procstat_get_pts_info(procstat, fst, &pts, errbuf);
504 printf("* pseudo-terminal master ");
505 if (nflg || !*pts.devname) {
506 printf("%#10jx", (uintmax_t)pts.dev);
508 printf("%10s", pts.devname);
510 print_access_flags(fst->fs_fflags);
514 print_sem_info(struct procstat *procstat, struct filestat *fst)
517 char errbuf[_POSIX2_LINE_MAX];
521 error = procstat_get_sem_info(procstat, fst, &sem, errbuf);
528 (void)snprintf(mode, sizeof(mode), "%o", sem.mode);
530 printf(" %-15s", fst->fs_path != NULL ? fst->fs_path : "-");
531 strmode(sem.mode, mode);
533 printf(" %10s %6u", mode, sem.value);
534 print_access_flags(fst->fs_fflags);
538 print_shm_info(struct procstat *procstat, struct filestat *fst)
541 char errbuf[_POSIX2_LINE_MAX];
545 error = procstat_get_shm_info(procstat, fst, &shm, errbuf);
552 (void)snprintf(mode, sizeof(mode), "%o", shm.mode);
554 printf(" %-15s", fst->fs_path != NULL ? fst->fs_path : "-");
555 strmode(shm.mode, mode);
557 printf(" %10s %6ju", mode, shm.size);
558 print_access_flags(fst->fs_fflags);
562 print_vnode_info(struct procstat *procstat, struct filestat *fst)
565 char errbuf[_POSIX2_LINE_MAX];
571 error = procstat_get_vnode_info(procstat, fst, &vn, errbuf);
574 else if (vn.vn_type == PS_FST_VTYPE_VBAD)
576 else if (vn.vn_type == PS_FST_VTYPE_VNON)
578 if (badtype != NULL) {
579 printf(" - - %10s -", badtype);
584 printf(" %#5jx", (uintmax_t)vn.vn_fsid);
585 else if (vn.vn_mntdir != NULL)
586 (void)printf(" %-8s", vn.vn_mntdir);
592 (void)snprintf(mode, sizeof(mode), "%o", vn.vn_mode);
594 strmode(vn.vn_mode, mode);
596 (void)printf(" %6jd %10s", (intmax_t)vn.vn_fileid, mode);
598 if (vn.vn_type == PS_FST_VTYPE_VBLK || vn.vn_type == PS_FST_VTYPE_VCHR) {
599 if (nflg || !*vn.vn_devname)
600 printf(" %#6jx", (uintmax_t)vn.vn_dev);
602 printf(" %6s", vn.vn_devname);
605 printf(" %6ju", (uintmax_t)vn.vn_size);
606 print_access_flags(fst->fs_fflags);
610 print_access_flags(int flags)
615 if (flags & PS_FST_FFLAG_READ)
617 if (flags & PS_FST_FFLAG_WRITE)
623 getfname(const char *filename)
628 if (stat(filename, &statbuf)) {
629 warn("%s", filename);
632 if ((cur = malloc(sizeof(DEVS))) == NULL)
637 cur->ino = statbuf.st_ino;
638 cur->fsid = statbuf.st_dev;
639 cur->name = filename;
646 (void)fprintf(stderr,
647 "usage: fstat [-fmnv] [-M core] [-N system] [-p pid] [-u user] [file ...]\n");