1 /* $NetBSD: init_sysctl.c,v 1.149.4.8 2011/03/07 17:08:28 snj Exp $ */
2
3 /*-
4 * Copyright (c) 2003, 2007, 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Andrew Brown, and by Andrew Doran.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: init_sysctl.c,v 1.149.4.8 2011/03/07 17:08:28 snj Exp $");
34
35 #include "opt_sysv.h"
36 #include "opt_compat_netbsd32.h"
37 #include "opt_sa.h"
38 #include "pty.h"
39 #include "rnd.h"
40
41 #include <sys/types.h>
42 #include <sys/param.h>
43 #include <sys/sysctl.h>
44 #include <sys/cpu.h>
45 #include <sys/errno.h>
46 #include <sys/systm.h>
47 #include <sys/kernel.h>
48 #include <sys/unistd.h>
49 #include <sys/disklabel.h>
50 #include <sys/rnd.h>
51 #include <sys/vnode.h>
52 #include <sys/mount.h>
53 #include <sys/namei.h>
54 #include <sys/msgbuf.h>
55 #include <dev/cons.h>
56 #include <sys/socketvar.h>
57 #include <sys/file.h>
58 #include <sys/filedesc.h>
59 #include <sys/tty.h>
60 #include <sys/malloc.h>
61 #include <sys/resource.h>
62 #include <sys/resourcevar.h>
63 #include <sys/exec.h>
64 #include <sys/conf.h>
65 #include <sys/device.h>
66 #include <sys/stat.h>
67 #include <sys/kauth.h>
68 #include <sys/ktrace.h>
69 #include <sys/ksem.h>
70
71 #include <miscfs/specfs/specdev.h>
72
73 #ifdef COMPAT_NETBSD32
74 #include <compat/netbsd32/netbsd32.h>
75 #endif
76
77 #ifdef KERN_SA
78 #include <sys/sa.h>
79 #endif
80
81 #include <sys/cpu.h>
82
83 int posix_semaphores;
84 int security_setidcore_dump;
85 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core";
86 uid_t security_setidcore_owner = 0;
87 gid_t security_setidcore_group = 0;
88 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR);
89
90 static const u_int sysctl_flagmap[] = {
91 PK_ADVLOCK, P_ADVLOCK,
92 PK_EXEC, P_EXEC,
93 PK_NOCLDWAIT, P_NOCLDWAIT,
94 PK_32, P_32,
95 PK_CLDSIGIGN, P_CLDSIGIGN,
96 PK_SUGID, P_SUGID,
97 0
98 };
99
100 static const u_int sysctl_sflagmap[] = {
101 PS_NOCLDSTOP, P_NOCLDSTOP,
102 PS_WEXIT, P_WEXIT,
103 PS_STOPFORK, P_STOPFORK,
104 PS_STOPEXEC, P_STOPEXEC,
105 PS_STOPEXIT, P_STOPEXIT,
106 0
107 };
108
109 static const u_int sysctl_slflagmap[] = {
110 PSL_TRACED, P_TRACED,
111 PSL_FSTRACE, P_FSTRACE,
112 PSL_CHTRACED, P_CHTRACED,
113 PSL_SYSCALL, P_SYSCALL,
114 0
115 };
116
117 static const u_int sysctl_lflagmap[] = {
118 PL_CONTROLT, P_CONTROLT,
119 PL_PPWAIT, P_PPWAIT,
120 0
121 };
122
123 static const u_int sysctl_stflagmap[] = {
124 PST_PROFIL, P_PROFIL,
125 0
126
127 };
128
129 static const u_int sysctl_lwpflagmap[] = {
130 LW_INMEM, P_INMEM,
131 LW_SINTR, P_SINTR,
132 LW_SYSTEM, P_SYSTEM,
133 LW_SA, P_SA, /* WRS ??? */
134 0
135 };
136
137 static const u_int sysctl_lwpprflagmap[] = {
138 LPR_DETACHED, L_DETACHED,
139 0
140 };
141
142 /*
143 * try over estimating by 5 procs/lwps
144 */
145 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc))
146 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp))
147
148 static int dcopyout(struct lwp *, const void *, void *, size_t);
149
150 static int
151 dcopyout(struct lwp *l, const void *kaddr, void *uaddr, size_t len)
152 {
153 int error;
154
155 error = copyout(kaddr, uaddr, len);
156 ktrmibio(-1, UIO_READ, uaddr, len, error);
157
158 return error;
159 }
160
161 #ifdef DIAGNOSTIC
162 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO);
163 #endif
164 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO);
165 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO);
166 static int sysctl_kern_maxproc(SYSCTLFN_PROTO);
167 static int sysctl_kern_hostid(SYSCTLFN_PROTO);
168 static int sysctl_setlen(SYSCTLFN_PROTO);
169 static int sysctl_kern_clockrate(SYSCTLFN_PROTO);
170 static int sysctl_kern_file(SYSCTLFN_PROTO);
171 static int sysctl_msgbuf(SYSCTLFN_PROTO);
172 static int sysctl_kern_defcorename(SYSCTLFN_PROTO);
173 static int sysctl_kern_cptime(SYSCTLFN_PROTO);
174 #if NPTY > 0
175 static int sysctl_kern_maxptys(SYSCTLFN_PROTO);
176 #endif /* NPTY > 0 */
177 static int sysctl_kern_sbmax(SYSCTLFN_PROTO);
178 static int sysctl_kern_urnd(SYSCTLFN_PROTO);
179 static int sysctl_kern_arnd(SYSCTLFN_PROTO);
180 static int sysctl_kern_lwp(SYSCTLFN_PROTO);
181 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO);
182 static int sysctl_kern_root_partition(SYSCTLFN_PROTO);
183 static int sysctl_kern_drivers(SYSCTLFN_PROTO);
184 static int sysctl_kern_file2(SYSCTLFN_PROTO);
185 static int sysctl_security_setidcore(SYSCTLFN_PROTO);
186 static int sysctl_security_setidcorename(SYSCTLFN_PROTO);
187 static int sysctl_kern_cpid(SYSCTLFN_PROTO);
188 static int sysctl_doeproc(SYSCTLFN_PROTO);
189 static int sysctl_kern_proc_args(SYSCTLFN_PROTO);
190 static int sysctl_hw_usermem(SYSCTLFN_PROTO);
191 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO);
192
193 static u_int sysctl_map_flags(const u_int *, u_int);
194 static void fill_kproc2(struct proc *, struct kinfo_proc2 *, bool);
195 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl);
196 static void fill_file(struct kinfo_file *, const file_t *, const fdfile_t *,
197 int, pid_t);
198
199 /*
200 * ********************************************************************
201 * section 1: setup routines
202 * ********************************************************************
203 * These functions are stuffed into a link set for sysctl setup
204 * functions. They're never called or referenced from anywhere else.
205 * ********************************************************************
206 */
207
208 /*
209 * sets up the base nodes...
210 */
211 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup")
212 {
213
214 sysctl_createv(clog, 0, NULL, NULL,
215 CTLFLAG_PERMANENT,
216 CTLTYPE_NODE, "kern",
217 SYSCTL_DESCR("High kernel"),
218 NULL, 0, NULL, 0,
219 CTL_KERN, CTL_EOL);
220 sysctl_createv(clog, 0, NULL, NULL,
221 CTLFLAG_PERMANENT,
222 CTLTYPE_NODE, "vm",
223 SYSCTL_DESCR("Virtual memory"),
224 NULL, 0, NULL, 0,
225 CTL_VM, CTL_EOL);
226 sysctl_createv(clog, 0, NULL, NULL,
227 CTLFLAG_PERMANENT,
228 CTLTYPE_NODE, "vfs",
229 SYSCTL_DESCR("Filesystem"),
230 NULL, 0, NULL, 0,
231 CTL_VFS, CTL_EOL);
232 sysctl_createv(clog, 0, NULL, NULL,
233 CTLFLAG_PERMANENT,
234 CTLTYPE_NODE, "net",
235 SYSCTL_DESCR("Networking"),
236 NULL, 0, NULL, 0,
237 CTL_NET, CTL_EOL);
238 sysctl_createv(clog, 0, NULL, NULL,
239 CTLFLAG_PERMANENT,
240 CTLTYPE_NODE, "debug",
241 SYSCTL_DESCR("Debugging"),
242 NULL, 0, NULL, 0,
243 CTL_DEBUG, CTL_EOL);
244 sysctl_createv(clog, 0, NULL, NULL,
245 CTLFLAG_PERMANENT,
246 CTLTYPE_NODE, "hw",
247 SYSCTL_DESCR("Generic CPU, I/O"),
248 NULL, 0, NULL, 0,
249 CTL_HW, CTL_EOL);
250 sysctl_createv(clog, 0, NULL, NULL,
251 CTLFLAG_PERMANENT,
252 CTLTYPE_NODE, "machdep",
253 SYSCTL_DESCR("Machine dependent"),
254 NULL, 0, NULL, 0,
255 CTL_MACHDEP, CTL_EOL);
256 /*
257 * this node is inserted so that the sysctl nodes in libc can
258 * operate.
259 */
260 sysctl_createv(clog, 0, NULL, NULL,
261 CTLFLAG_PERMANENT,
262 CTLTYPE_NODE, "user",
263 SYSCTL_DESCR("User-level"),
264 NULL, 0, NULL, 0,
265 CTL_USER, CTL_EOL);
266 sysctl_createv(clog, 0, NULL, NULL,
267 CTLFLAG_PERMANENT,
268 CTLTYPE_NODE, "ddb",
269 SYSCTL_DESCR("In-kernel debugger"),
270 NULL, 0, NULL, 0,
271 CTL_DDB, CTL_EOL);
272 sysctl_createv(clog, 0, NULL, NULL,
273 CTLFLAG_PERMANENT,
274 CTLTYPE_NODE, "proc",
275 SYSCTL_DESCR("Per-process"),
276 NULL, 0, NULL, 0,
277 CTL_PROC, CTL_EOL);
278 sysctl_createv(clog, 0, NULL, NULL,
279 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
280 CTLTYPE_NODE, "vendor",
281 SYSCTL_DESCR("Vendor specific"),
282 NULL, 0, NULL, 0,
283 CTL_VENDOR, CTL_EOL);
284 sysctl_createv(clog, 0, NULL, NULL,
285 CTLFLAG_PERMANENT,
286 CTLTYPE_NODE, "emul",
287 SYSCTL_DESCR("Emulation settings"),
288 NULL, 0, NULL, 0,
289 CTL_EMUL, CTL_EOL);
290 sysctl_createv(clog, 0, NULL, NULL,
291 CTLFLAG_PERMANENT,
292 CTLTYPE_NODE, "security",
293 SYSCTL_DESCR("Security"),
294 NULL, 0, NULL, 0,
295 CTL_SECURITY, CTL_EOL);
296 }
297
298 /*
299 * this setup routine is a replacement for kern_sysctl()
300 */
301 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup")
302 {
303 extern int kern_logsigexit; /* defined in kern/kern_sig.c */
304 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */
305 extern int dumponpanic; /* defined in kern/subr_prf.c */
306 const struct sysctlnode *rnode;
307
308 sysctl_createv(clog, 0, NULL, NULL,
309 CTLFLAG_PERMANENT,
310 CTLTYPE_NODE, "kern", NULL,
311 NULL, 0, NULL, 0,
312 CTL_KERN, CTL_EOL);
313
314 sysctl_createv(clog, 0, NULL, NULL,
315 CTLFLAG_PERMANENT,
316 CTLTYPE_STRING, "ostype",
317 SYSCTL_DESCR("Operating system type"),
318 NULL, 0, &ostype, 0,
319 CTL_KERN, KERN_OSTYPE, CTL_EOL);
320 sysctl_createv(clog, 0, NULL, NULL,
321 CTLFLAG_PERMANENT,
322 CTLTYPE_STRING, "osrelease",
323 SYSCTL_DESCR("Operating system release"),
324 NULL, 0, &osrelease, 0,
325 CTL_KERN, KERN_OSRELEASE, CTL_EOL);
326 sysctl_createv(clog, 0, NULL, NULL,
327 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
328 CTLTYPE_INT, "osrevision",
329 SYSCTL_DESCR("Operating system revision"),
330 NULL, __NetBSD_Version__, NULL, 0,
331 CTL_KERN, KERN_OSREV, CTL_EOL);
332 sysctl_createv(clog, 0, NULL, NULL,
333 CTLFLAG_PERMANENT,
334 CTLTYPE_STRING, "version",
335 SYSCTL_DESCR("Kernel version"),
336 NULL, 0, &version, 0,
337 CTL_KERN, KERN_VERSION, CTL_EOL);
338 sysctl_createv(clog, 0, NULL, NULL,
339 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
340 CTLTYPE_INT, "maxvnodes",
341 SYSCTL_DESCR("Maximum number of vnodes"),
342 sysctl_kern_maxvnodes, 0, NULL, 0,
343 CTL_KERN, KERN_MAXVNODES, CTL_EOL);
344 sysctl_createv(clog, 0, NULL, NULL,
345 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
346 CTLTYPE_INT, "maxproc",
347 SYSCTL_DESCR("Maximum number of simultaneous processes"),
348 sysctl_kern_maxproc, 0, NULL, 0,
349 CTL_KERN, KERN_MAXPROC, CTL_EOL);
350 sysctl_createv(clog, 0, NULL, NULL,
351 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
352 CTLTYPE_INT, "maxfiles",
353 SYSCTL_DESCR("Maximum number of open files"),
354 NULL, 0, &maxfiles, 0,
355 CTL_KERN, KERN_MAXFILES, CTL_EOL);
356 sysctl_createv(clog, 0, NULL, NULL,
357 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
358 CTLTYPE_INT, "argmax",
359 SYSCTL_DESCR("Maximum number of bytes of arguments to "
360 "execve(2)"),
361 NULL, ARG_MAX, NULL, 0,
362 CTL_KERN, KERN_ARGMAX, CTL_EOL);
363 sysctl_createv(clog, 0, NULL, NULL,
364 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
365 CTLTYPE_STRING, "hostname",
366 SYSCTL_DESCR("System hostname"),
367 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN,
368 CTL_KERN, KERN_HOSTNAME, CTL_EOL);
369 sysctl_createv(clog, 0, NULL, NULL,
370 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX,
371 CTLTYPE_INT, "hostid",
372 SYSCTL_DESCR("System host ID number"),
373 sysctl_kern_hostid, 0, NULL, 0,
374 CTL_KERN, KERN_HOSTID, CTL_EOL);
375 sysctl_createv(clog, 0, NULL, NULL,
376 CTLFLAG_PERMANENT,
377 CTLTYPE_STRUCT, "clockrate",
378 SYSCTL_DESCR("Kernel clock rates"),
379 sysctl_kern_clockrate, 0, NULL,
380 sizeof(struct clockinfo),
381 CTL_KERN, KERN_CLOCKRATE, CTL_EOL);
382 sysctl_createv(clog, 0, NULL, NULL,
383 CTLFLAG_PERMANENT,
384 CTLTYPE_INT, "hardclock_ticks",
385 SYSCTL_DESCR("Number of hardclock ticks"),
386 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks),
387 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL);
388 sysctl_createv(clog, 0, NULL, NULL,
389 CTLFLAG_PERMANENT,
390 CTLTYPE_STRUCT, "vnode",
391 SYSCTL_DESCR("System vnode table"),
392 sysctl_kern_vnode, 0, NULL, 0,
393 CTL_KERN, KERN_VNODE, CTL_EOL);
394 sysctl_createv(clog, 0, NULL, NULL,
395 CTLFLAG_PERMANENT,
396 CTLTYPE_STRUCT, "file",
397 SYSCTL_DESCR("System open file table"),
398 sysctl_kern_file, 0, NULL, 0,
399 CTL_KERN, KERN_FILE, CTL_EOL);
400 #ifndef GPROF
401 sysctl_createv(clog, 0, NULL, NULL,
402 CTLFLAG_PERMANENT,
403 CTLTYPE_NODE, "profiling",
404 SYSCTL_DESCR("Profiling information (not available)"),
405 sysctl_notavail, 0, NULL, 0,
406 CTL_KERN, KERN_PROF, CTL_EOL);
407 #endif
408 sysctl_createv(clog, 0, NULL, NULL,
409 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
410 CTLTYPE_INT, "posix1version",
411 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) "
412 "with which the operating system attempts "
413 "to comply"),
414 NULL, _POSIX_VERSION, NULL, 0,
415 CTL_KERN, KERN_POSIX1, CTL_EOL);
416 sysctl_createv(clog, 0, NULL, NULL,
417 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
418 CTLTYPE_INT, "ngroups",
419 SYSCTL_DESCR("Maximum number of supplemental groups"),
420 NULL, NGROUPS_MAX, NULL, 0,
421 CTL_KERN, KERN_NGROUPS, CTL_EOL);
422 sysctl_createv(clog, 0, NULL, NULL,
423 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
424 CTLTYPE_INT, "job_control",
425 SYSCTL_DESCR("Whether job control is available"),
426 NULL, 1, NULL, 0,
427 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL);
428 sysctl_createv(clog, 0, NULL, NULL,
429 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
430 CTLTYPE_INT, "saved_ids",
431 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is "
432 "available"), NULL,
433 #ifdef _POSIX_SAVED_IDS
434 1,
435 #else /* _POSIX_SAVED_IDS */
436 0,
437 #endif /* _POSIX_SAVED_IDS */
438 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL);
439 sysctl_createv(clog, 0, NULL, NULL,
440 CTLFLAG_PERMANENT,
441 CTLTYPE_STRUCT, "boottime",
442 SYSCTL_DESCR("System boot time"),
443 NULL, 0, &boottime, sizeof(boottime),
444 CTL_KERN, KERN_BOOTTIME, CTL_EOL);
445 sysctl_createv(clog, 0, NULL, NULL,
446 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
447 CTLTYPE_STRING, "domainname",
448 SYSCTL_DESCR("YP domain name"),
449 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN,
450 CTL_KERN, KERN_DOMAINNAME, CTL_EOL);
451 sysctl_createv(clog, 0, NULL, NULL,
452 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
453 CTLTYPE_INT, "maxpartitions",
454 SYSCTL_DESCR("Maximum number of partitions allowed per "
455 "disk"),
456 NULL, MAXPARTITIONS, NULL, 0,
457 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL);
458 sysctl_createv(clog, 0, NULL, NULL,
459 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
460 CTLTYPE_INT, "rawpartition",
461 SYSCTL_DESCR("Raw partition of a disk"),
462 NULL, RAW_PART, NULL, 0,
463 CTL_KERN, KERN_RAWPARTITION, CTL_EOL);
464 sysctl_createv(clog, 0, NULL, NULL,
465 CTLFLAG_PERMANENT,
466 CTLTYPE_STRUCT, "timex", NULL,
467 sysctl_notavail, 0, NULL, 0,
468 CTL_KERN, KERN_TIMEX, CTL_EOL);
469 sysctl_createv(clog, 0, NULL, NULL,
470 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
471 CTLTYPE_INT, "rtc_offset",
472 SYSCTL_DESCR("Offset of real time clock from UTC in "
473 "minutes"),
474 sysctl_kern_rtc_offset, 0, &rtc_offset, 0,
475 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL);
476 sysctl_createv(clog, 0, NULL, NULL,
477 CTLFLAG_PERMANENT,
478 CTLTYPE_STRING, "root_device",
479 SYSCTL_DESCR("Name of the root device"),
480 sysctl_root_device, 0, NULL, 0,
481 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL);
482 sysctl_createv(clog, 0, NULL, NULL,
483 CTLFLAG_PERMANENT,
484 CTLTYPE_INT, "msgbufsize",
485 SYSCTL_DESCR("Size of the kernel message buffer"),
486 sysctl_msgbuf, 0, NULL, 0,
487 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL);
488 sysctl_createv(clog, 0, NULL, NULL,
489 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
490 CTLTYPE_INT, "fsync",
491 SYSCTL_DESCR("Whether the POSIX 1003.1b File "
492 "Synchronization Option is available on "
493 "this system"),
494 NULL, 1, NULL, 0,
495 CTL_KERN, KERN_FSYNC, CTL_EOL);
496 sysctl_createv(clog, 0, NULL, NULL,
497 CTLFLAG_PERMANENT,
498 CTLTYPE_NODE, "ipc",
499 SYSCTL_DESCR("SysV IPC options"),
500 NULL, 0, NULL, 0,
501 CTL_KERN, KERN_SYSVIPC, CTL_EOL);
502 sysctl_createv(clog, 0, NULL, NULL,
503 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
504 CTLTYPE_INT, "sysvmsg",
505 SYSCTL_DESCR("System V style message support available"),
506 NULL,
507 #ifdef SYSVMSG
508 1,
509 #else /* SYSVMSG */
510 0,
511 #endif /* SYSVMSG */
512 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL);
513 sysctl_createv(clog, 0, NULL, NULL,
514 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
515 CTLTYPE_INT, "sysvsem",
516 SYSCTL_DESCR("System V style semaphore support "
517 "available"), NULL,
518 #ifdef SYSVSEM
519 1,
520 #else /* SYSVSEM */
521 0,
522 #endif /* SYSVSEM */
523 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL);
524 sysctl_createv(clog, 0, NULL, NULL,
525 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
526 CTLTYPE_INT, "sysvshm",
527 SYSCTL_DESCR("System V style shared memory support "
528 "available"), NULL,
529 #ifdef SYSVSHM
530 1,
531 #else /* SYSVSHM */
532 0,
533 #endif /* SYSVSHM */
534 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL);
535 sysctl_createv(clog, 0, NULL, NULL,
536 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
537 CTLTYPE_INT, "synchronized_io",
538 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized "
539 "I/O Option is available on this system"),
540 NULL, 1, NULL, 0,
541 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL);
542 sysctl_createv(clog, 0, NULL, NULL,
543 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
544 CTLTYPE_INT, "iov_max",
545 SYSCTL_DESCR("Maximum number of iovec structures per "
546 "process"),
547 NULL, IOV_MAX, NULL, 0,
548 CTL_KERN, KERN_IOV_MAX, CTL_EOL);
549 sysctl_createv(clog, 0, NULL, NULL,
550 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
551 CTLTYPE_INT, "mapped_files",
552 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped "
553 "Files Option is available on this system"),
554 NULL, 1, NULL, 0,
555 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL);
556 sysctl_createv(clog, 0, NULL, NULL,
557 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
558 CTLTYPE_INT, "memlock",
559 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory "
560 "Locking Option is available on this "
561 "system"),
562 NULL, 1, NULL, 0,
563 CTL_KERN, KERN_MEMLOCK, CTL_EOL);
564 sysctl_createv(clog, 0, NULL, NULL,
565 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
566 CTLTYPE_INT, "memlock_range",
567 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory "
568 "Locking Option is available on this "
569 "system"),
570 NULL, 1, NULL, 0,
571 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL);
572 sysctl_createv(clog, 0, NULL, NULL,
573 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
574 CTLTYPE_INT, "memory_protection",
575 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory "
576 "Protection Option is available on this "
577 "system"),
578 NULL, 1, NULL, 0,
579 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL);
580 sysctl_createv(clog, 0, NULL, NULL,
581 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
582 CTLTYPE_INT, "login_name_max",
583 SYSCTL_DESCR("Maximum login name length"),
584 NULL, LOGIN_NAME_MAX, NULL, 0,
585 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL);
586 sysctl_createv(clog, 0, NULL, NULL,
587 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
588 CTLTYPE_STRING, "defcorename",
589 SYSCTL_DESCR("Default core file name"),
590 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN,
591 CTL_KERN, KERN_DEFCORENAME, CTL_EOL);
592 sysctl_createv(clog, 0, NULL, NULL,
593 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
594 CTLTYPE_INT, "logsigexit",
595 SYSCTL_DESCR("Log process exit when caused by signals"),
596 NULL, 0, &kern_logsigexit, 0,
597 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL);
598 sysctl_createv(clog, 0, NULL, NULL,
599 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
600 CTLTYPE_INT, "fscale",
601 SYSCTL_DESCR("Kernel fixed-point scale factor"),
602 NULL, FSCALE, NULL, 0,
603 CTL_KERN, KERN_FSCALE, CTL_EOL);
604 sysctl_createv(clog, 0, NULL, NULL,
605 CTLFLAG_PERMANENT,
606 CTLTYPE_INT, "ccpu",
607 SYSCTL_DESCR("Scheduler exponential decay value"),
608 NULL, 0, &ccpu, 0,
609 CTL_KERN, KERN_CCPU, CTL_EOL);
610 sysctl_createv(clog, 0, NULL, NULL,
611 CTLFLAG_PERMANENT,
612 CTLTYPE_STRUCT, "cp_time",
613 SYSCTL_DESCR("Clock ticks spent in different CPU states"),
614 sysctl_kern_cptime, 0, NULL, 0,
615 CTL_KERN, KERN_CP_TIME, CTL_EOL);
616 sysctl_createv(clog, 0, NULL, NULL,
617 CTLFLAG_PERMANENT,
618 CTLTYPE_INT, "msgbuf",
619 SYSCTL_DESCR("Kernel message buffer"),
620 sysctl_msgbuf, 0, NULL, 0,
621 CTL_KERN, KERN_MSGBUF, CTL_EOL);
622 sysctl_createv(clog, 0, NULL, NULL,
623 CTLFLAG_PERMANENT,
624 CTLTYPE_STRUCT, "consdev",
625 SYSCTL_DESCR("Console device"),
626 sysctl_consdev, 0, NULL, sizeof(dev_t),
627 CTL_KERN, KERN_CONSDEV, CTL_EOL);
628 #if NPTY > 0
629 sysctl_createv(clog, 0, NULL, NULL,
630 CTLFLAG_PERMANENT,
631 CTLTYPE_INT, "maxptys",
632 SYSCTL_DESCR("Maximum number of pseudo-ttys"),
633 sysctl_kern_maxptys, 0, NULL, 0,
634 CTL_KERN, KERN_MAXPTYS, CTL_EOL);
635 #endif /* NPTY > 0 */
636 sysctl_createv(clog, 0, NULL, NULL,
637 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
638 CTLTYPE_INT, "maxphys",
639 SYSCTL_DESCR("Maximum raw I/O transfer size"),
640 NULL, MAXPHYS, NULL, 0,
641 CTL_KERN, KERN_MAXPHYS, CTL_EOL);
642 sysctl_createv(clog, 0, NULL, NULL,
643 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
644 CTLTYPE_INT, "sbmax",
645 SYSCTL_DESCR("Maximum socket buffer size"),
646 sysctl_kern_sbmax, 0, NULL, 0,
647 CTL_KERN, KERN_SBMAX, CTL_EOL);
648 sysctl_createv(clog, 0, NULL, NULL,
649 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
650 CTLTYPE_INT, "monotonic_clock",
651 SYSCTL_DESCR("Implementation version of the POSIX "
652 "1003.1b Monotonic Clock Option"),
653 /* XXX _POSIX_VERSION */
654 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0,
655 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL);
656 sysctl_createv(clog, 0, NULL, NULL,
657 CTLFLAG_PERMANENT,
658 CTLTYPE_INT, "urandom",
659 SYSCTL_DESCR("Random integer value"),
660 sysctl_kern_urnd, 0, NULL, 0,
661 CTL_KERN, KERN_URND, CTL_EOL);
662 sysctl_createv(clog, 0, NULL, NULL,
663 CTLFLAG_PERMANENT,
664 CTLTYPE_INT, "arandom",
665 SYSCTL_DESCR("n bytes of random data"),
666 sysctl_kern_arnd, 0, NULL, 0,
667 CTL_KERN, KERN_ARND, CTL_EOL);
668 sysctl_createv(clog, 0, NULL, NULL,
669 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
670 CTLTYPE_INT, "labelsector",
671 SYSCTL_DESCR("Sector number containing the disklabel"),
672 NULL, LABELSECTOR, NULL, 0,
673 CTL_KERN, KERN_LABELSECTOR, CTL_EOL);
674 sysctl_createv(clog, 0, NULL, NULL,
675 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
676 CTLTYPE_INT, "labeloffset",
677 SYSCTL_DESCR("Offset of the disklabel within the "
678 "sector"),
679 NULL, LABELOFFSET, NULL, 0,
680 CTL_KERN, KERN_LABELOFFSET, CTL_EOL);
681 sysctl_createv(clog, 0, NULL, NULL,
682 CTLFLAG_PERMANENT,
683 CTLTYPE_NODE, "lwp",
684 SYSCTL_DESCR("System-wide LWP information"),
685 sysctl_kern_lwp, 0, NULL, 0,
686 CTL_KERN, KERN_LWP, CTL_EOL);
687 sysctl_createv(clog, 0, NULL, NULL,
688 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
689 CTLTYPE_INT, "forkfsleep",
690 SYSCTL_DESCR("Milliseconds to sleep on fork failure due "
691 "to process limits"),
692 sysctl_kern_forkfsleep, 0, NULL, 0,
693 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL);
694 sysctl_createv(clog, 0, NULL, NULL,
695 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
696 CTLTYPE_INT, "posix_threads",
697 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its "
698 "Threads option to which the system "
699 "attempts to conform"),
700 /* XXX _POSIX_VERSION */
701 NULL, _POSIX_THREADS, NULL, 0,
702 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL);
703 sysctl_createv(clog, 0, NULL, NULL,
704 CTLFLAG_PERMANENT,
705 CTLTYPE_INT, "posix_semaphores",
706 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its "
707 "Semaphores option to which the system "
708 "attempts to conform"), NULL,
709 0, &posix_semaphores,
710 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL);
711 sysctl_createv(clog, 0, NULL, NULL,
712 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
713 CTLTYPE_INT, "posix_barriers",
714 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its "
715 "Barriers option to which the system "
716 "attempts to conform"),
717 /* XXX _POSIX_VERSION */
718 NULL, _POSIX_BARRIERS, NULL, 0,
719 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL);
720 sysctl_createv(clog, 0, NULL, NULL,
721 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
722 CTLTYPE_INT, "posix_timers",
723 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its "
724 "Timers option to which the system "
725 "attempts to conform"),
726 /* XXX _POSIX_VERSION */
727 NULL, _POSIX_TIMERS, NULL, 0,
728 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL);
729 sysctl_createv(clog, 0, NULL, NULL,
730 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
731 CTLTYPE_INT, "posix_spin_locks",
732 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin "
733 "Locks option to which the system attempts "
734 "to conform"),
735 /* XXX _POSIX_VERSION */
736 NULL, _POSIX_SPIN_LOCKS, NULL, 0,
737 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL);
738 sysctl_createv(clog, 0, NULL, NULL,
739 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
740 CTLTYPE_INT, "posix_reader_writer_locks",
741 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its "
742 "Read-Write Locks option to which the "
743 "system attempts to conform"),
744 /* XXX _POSIX_VERSION */
745 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0,
746 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL);
747 sysctl_createv(clog, 0, NULL, NULL,
748 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
749 CTLTYPE_INT, "dump_on_panic",
750 SYSCTL_DESCR("Perform a crash dump on system panic"),
751 NULL, 0, &dumponpanic, 0,
752 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL);
753 #ifdef DIAGNOSTIC
754 sysctl_createv(clog, 0, NULL, NULL,
755 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
756 CTLTYPE_INT, "panic_now",
757 SYSCTL_DESCR("Trigger a panic"),
758 sysctl_kern_trigger_panic, 0, NULL, 0,
759 CTL_KERN, CTL_CREATE, CTL_EOL);
760 #endif
761 sysctl_createv(clog, 0, NULL, NULL,
762 CTLFLAG_PERMANENT,
763 CTLTYPE_INT, "root_partition",
764 SYSCTL_DESCR("Root partition on the root device"),
765 sysctl_kern_root_partition, 0, NULL, 0,
766 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL);
767 sysctl_createv(clog, 0, NULL, NULL,
768 CTLFLAG_PERMANENT,
769 CTLTYPE_STRUCT, "drivers",
770 SYSCTL_DESCR("List of all drivers with block and "
771 "character device numbers"),
772 sysctl_kern_drivers, 0, NULL, 0,
773 CTL_KERN, KERN_DRIVERS, CTL_EOL);
774 sysctl_createv(clog, 0, NULL, NULL,
775 CTLFLAG_PERMANENT,
776 CTLTYPE_STRUCT, "file2",
777 SYSCTL_DESCR("System open file table"),
778 sysctl_kern_file2, 0, NULL, 0,
779 CTL_KERN, KERN_FILE2, CTL_EOL);
780 sysctl_createv(clog, 0, NULL, NULL,
781 CTLFLAG_PERMANENT,
782 CTLTYPE_STRUCT, "cp_id",
783 SYSCTL_DESCR("Mapping of CPU number to CPU id"),
784 sysctl_kern_cpid, 0, NULL, 0,
785 CTL_KERN, KERN_CP_ID, CTL_EOL);
786 sysctl_createv(clog, 0, NULL, &rnode,
787 CTLFLAG_PERMANENT,
788 CTLTYPE_NODE, "coredump",
789 SYSCTL_DESCR("Coredump settings."),
790 NULL, 0, NULL, 0,
791 CTL_KERN, CTL_CREATE, CTL_EOL);
792 sysctl_createv(clog, 0, &rnode, &rnode,
793 CTLFLAG_PERMANENT,
794 CTLTYPE_NODE, "setid",
795 SYSCTL_DESCR("Set-id processes' coredump settings."),
796 NULL, 0, NULL, 0,
797 CTL_CREATE, CTL_EOL);
798 sysctl_createv(clog, 0, &rnode, NULL,
799 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
800 CTLTYPE_INT, "dump",
801 SYSCTL_DESCR("Allow set-id processes to dump core."),
802 sysctl_security_setidcore, 0, &security_setidcore_dump,
803 sizeof(security_setidcore_dump),
804 CTL_CREATE, CTL_EOL);
805 sysctl_createv(clog, 0, &rnode, NULL,
806 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
807 CTLTYPE_STRING, "path",
808 SYSCTL_DESCR("Path pattern for set-id coredumps."),
809 sysctl_security_setidcorename, 0,
810 &security_setidcore_path,
811 sizeof(security_setidcore_path),
812 CTL_CREATE, CTL_EOL);
813 sysctl_createv(clog, 0, &rnode, NULL,
814 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
815 CTLTYPE_INT, "owner",
816 SYSCTL_DESCR("Owner id for set-id processes' cores."),
817 sysctl_security_setidcore, 0, &security_setidcore_owner,
818 0,
819 CTL_CREATE, CTL_EOL);
820 sysctl_createv(clog, 0, &rnode, NULL,
821 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
822 CTLTYPE_INT, "group",
823 SYSCTL_DESCR("Group id for set-id processes' cores."),
824 sysctl_security_setidcore, 0, &security_setidcore_group,
825 0,
826 CTL_CREATE, CTL_EOL);
827 sysctl_createv(clog, 0, &rnode, NULL,
828 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
829 CTLTYPE_INT, "mode",
830 SYSCTL_DESCR("Mode for set-id processes' cores."),
831 sysctl_security_setidcore, 0, &security_setidcore_mode,
832 0,
833 CTL_CREATE, CTL_EOL);
834 #ifdef KERN_SA
835 sysctl_createv(clog, 0, NULL, NULL,
836 CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
837 CTLTYPE_INT, "no_sa_support",
838 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"),
839 NULL, 0, &sa_system_disabled, 0,
840 CTL_KERN, CTL_CREATE, CTL_EOL);
841 #else
842 sysctl_createv(clog, 0, NULL, NULL,
843 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
844 CTLTYPE_INT, "no_sa_support",
845 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"),
846 NULL, 1, NULL, 0,
847 CTL_KERN, CTL_CREATE, CTL_EOL);
848 #endif
849 }
850
851 SYSCTL_SETUP(sysctl_kern_proc_setup,
852 "sysctl kern.proc/proc2/proc_args subtree setup")
853 {
854
855 sysctl_createv(clog, 0, NULL, NULL,
856 CTLFLAG_PERMANENT,
857 CTLTYPE_NODE, "kern", NULL,
858 NULL, 0, NULL, 0,
859 CTL_KERN, CTL_EOL);
860
861 sysctl_createv(clog, 0, NULL, NULL,
862 CTLFLAG_PERMANENT,
863 CTLTYPE_NODE, "proc",
864 SYSCTL_DESCR("System-wide process information"),
865 sysctl_doeproc, 0, NULL, 0,
866 CTL_KERN, KERN_PROC, CTL_EOL);
867 sysctl_createv(clog, 0, NULL, NULL,
868 CTLFLAG_PERMANENT,
869 CTLTYPE_NODE, "proc2",
870 SYSCTL_DESCR("Machine-independent process information"),
871 sysctl_doeproc, 0, NULL, 0,
872 CTL_KERN, KERN_PROC2, CTL_EOL);
873 sysctl_createv(clog, 0, NULL, NULL,
874 CTLFLAG_PERMANENT,
875 CTLTYPE_NODE, "proc_args",
876 SYSCTL_DESCR("Process argument information"),
877 sysctl_kern_proc_args, 0, NULL, 0,
878 CTL_KERN, KERN_PROC_ARGS, CTL_EOL);
879
880 /*
881 "nodes" under these:
882
883 KERN_PROC_ALL
884 KERN_PROC_PID pid
885 KERN_PROC_PGRP pgrp
886 KERN_PROC_SESSION sess
887 KERN_PROC_TTY tty
888 KERN_PROC_UID uid
889 KERN_PROC_RUID uid
890 KERN_PROC_GID gid
891 KERN_PROC_RGID gid
892
893 all in all, probably not worth the effort...
894 */
895 }
896
897 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup")
898 {
899 u_int u;
900 u_quad_t q;
901
902 sysctl_createv(clog, 0, NULL, NULL,
903 CTLFLAG_PERMANENT,
904 CTLTYPE_NODE, "hw", NULL,
905 NULL, 0, NULL, 0,
906 CTL_HW, CTL_EOL);
907
908 sysctl_createv(clog, 0, NULL, NULL,
909 CTLFLAG_PERMANENT,
910 CTLTYPE_STRING, "machine",
911 SYSCTL_DESCR("Machine class"),
912 NULL, 0, machine, 0,
913 CTL_HW, HW_MACHINE, CTL_EOL);
914 sysctl_createv(clog, 0, NULL, NULL,
915 CTLFLAG_PERMANENT,
916 CTLTYPE_STRING, "model",
917 SYSCTL_DESCR("Machine model"),
918 NULL, 0, cpu_model, 0,
919 CTL_HW, HW_MODEL, CTL_EOL);
920 sysctl_createv(clog, 0, NULL, NULL,
921 CTLFLAG_PERMANENT,
922 CTLTYPE_INT, "ncpu",
923 SYSCTL_DESCR("Number of CPUs configured"),
924 NULL, 0, &ncpu, 0,
925 CTL_HW, HW_NCPU, CTL_EOL);
926 sysctl_createv(clog, 0, NULL, NULL,
927 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
928 CTLTYPE_INT, "byteorder",
929 SYSCTL_DESCR("System byte order"),
930 NULL, BYTE_ORDER, NULL, 0,
931 CTL_HW, HW_BYTEORDER, CTL_EOL);
932 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ?
933 UINT_MAX : physmem * PAGE_SIZE;
934 sysctl_createv(clog, 0, NULL, NULL,
935 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
936 CTLTYPE_INT, "physmem",
937 SYSCTL_DESCR("Bytes of physical memory"),
938 NULL, u, NULL, 0,
939 CTL_HW, HW_PHYSMEM, CTL_EOL);
940 sysctl_createv(clog, 0, NULL, NULL,
941 CTLFLAG_PERMANENT,
942 CTLTYPE_INT, "usermem",
943 SYSCTL_DESCR("Bytes of non-kernel memory"),
944 sysctl_hw_usermem, 0, NULL, 0,
945 CTL_HW, HW_USERMEM, CTL_EOL);
946 sysctl_createv(clog, 0, NULL, NULL,
947 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
948 CTLTYPE_INT, "pagesize",
949 SYSCTL_DESCR("Software page size"),
950 NULL, PAGE_SIZE, NULL, 0,
951 CTL_HW, HW_PAGESIZE, CTL_EOL);
952 sysctl_createv(clog, 0, NULL, NULL,
953 CTLFLAG_PERMANENT,
954 CTLTYPE_STRING, "machine_arch",
955 SYSCTL_DESCR("Machine CPU class"),
956 NULL, 0, machine_arch, 0,
957 CTL_HW, HW_MACHINE_ARCH, CTL_EOL);
958 sysctl_createv(clog, 0, NULL, NULL,
959 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
960 CTLTYPE_INT, "alignbytes",
961 SYSCTL_DESCR("Alignment constraint for all possible "
962 "data types"),
963 NULL, ALIGNBYTES, NULL, 0,
964 CTL_HW, HW_ALIGNBYTES, CTL_EOL);
965 sysctl_createv(clog, 0, NULL, NULL,
966 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX,
967 CTLTYPE_STRING, "cnmagic",
968 SYSCTL_DESCR("Console magic key sequence"),
969 sysctl_hw_cnmagic, 0, NULL, CNS_LEN,
970 CTL_HW, HW_CNMAGIC, CTL_EOL);
971 q = (u_quad_t)physmem * PAGE_SIZE;
972 sysctl_createv(clog, 0, NULL, NULL,
973 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
974 CTLTYPE_QUAD, "physmem64",
975 SYSCTL_DESCR("Bytes of physical memory"),
976 NULL, q, NULL, 0,
977 CTL_HW, HW_PHYSMEM64, CTL_EOL);
978 sysctl_createv(clog, 0, NULL, NULL,
979 CTLFLAG_PERMANENT,
980 CTLTYPE_QUAD, "usermem64",
981 SYSCTL_DESCR("Bytes of non-kernel memory"),
982 sysctl_hw_usermem, 0, NULL, 0,
983 CTL_HW, HW_USERMEM64, CTL_EOL);
984 sysctl_createv(clog, 0, NULL, NULL,
985 CTLFLAG_PERMANENT,
986 CTLTYPE_INT, "ncpuonline",
987 SYSCTL_DESCR("Number of CPUs online"),
988 NULL, 0, &ncpuonline, 0,
989 CTL_HW, HW_NCPUONLINE, CTL_EOL);
990 }
991
992 #ifdef DEBUG
993 /*
994 * Debugging related system variables.
995 */
996 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4;
997 struct ctldebug debug5, debug6, debug7, debug8, debug9;
998 struct ctldebug debug10, debug11, debug12, debug13, debug14;
999 struct ctldebug debug15, debug16, debug17, debug18, debug19;
1000 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = {
1001 &debug0, &debug1, &debug2, &debug3, &debug4,
1002 &debug5, &debug6, &debug7, &debug8, &debug9,
1003 &debug10, &debug11, &debug12, &debug13, &debug14,
1004 &debug15, &debug16, &debug17, &debug18, &debug19,
1005 };
1006
1007 /*
1008 * this setup routine is a replacement for debug_sysctl()
1009 *
1010 * note that it creates several nodes per defined debug variable
1011 */
1012 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup")
1013 {
1014 struct ctldebug *cdp;
1015 char nodename[20];
1016 int i;
1017
1018 /*
1019 * two ways here:
1020 *
1021 * the "old" way (debug.name -> value) which was emulated by
1022 * the sysctl(8) binary
1023 *
1024 * the new way, which the sysctl(8) binary was actually using
1025
1026 node debug
1027 node debug.0
1028 string debug.0.name
1029 int debug.0.value
1030 int debug.name
1031
1032 */
1033
1034 sysctl_createv(clog, 0, NULL, NULL,
1035 CTLFLAG_PERMANENT,
1036 CTLTYPE_NODE, "debug", NULL,
1037 NULL, 0, NULL, 0,
1038 CTL_DEBUG, CTL_EOL);
1039
1040 for (i = 0; i < CTL_DEBUG_MAXID; i++) {
1041 cdp = debugvars[i];
1042 if (cdp->debugname == NULL || cdp->debugvar == NULL)
1043 continue;
1044
1045 snprintf(nodename, sizeof(nodename), "debug%d", i);
1046 sysctl_createv(clog, 0, NULL, NULL,
1047 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN,
1048 CTLTYPE_NODE, nodename, NULL,
1049 NULL, 0, NULL, 0,
1050 CTL_DEBUG, i, CTL_EOL);
1051 sysctl_createv(clog, 0, NULL, NULL,
1052 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN,
1053 CTLTYPE_STRING, "name", NULL,
1054 /*XXXUNCONST*/
1055 NULL, 0, __UNCONST(cdp->debugname), 0,
1056 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL);
1057 sysctl_createv(clog, 0, NULL, NULL,
1058 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN,
1059 CTLTYPE_INT, "value", NULL,
1060 NULL, 0, cdp->debugvar, 0,
1061 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL);
1062 sysctl_createv(clog, 0, NULL, NULL,
1063 CTLFLAG_PERMANENT,
1064 CTLTYPE_INT, cdp->debugname, NULL,
1065 NULL, 0, cdp->debugvar, 0,
1066 CTL_DEBUG, CTL_CREATE, CTL_EOL);
1067 }
1068 }
1069 #endif /* DEBUG */
1070
1071 /*
1072 * ********************************************************************
1073 * section 2: private node-specific helper routines.
1074 * ********************************************************************
1075 */
1076
1077 #ifdef DIAGNOSTIC
1078 static int
1079 sysctl_kern_trigger_panic(SYSCTLFN_ARGS)
1080 {
1081 int newtrig, error;
1082 struct sysctlnode node;
1083
1084 newtrig = 0;
1085 node = *rnode;
1086 node.sysctl_data = &newtrig;
1087 error = sysctl_lookup(SYSCTLFN_CALL(&node));
1088 if (error || newp == NULL)
1089 return (error);
1090
1091 if (newtrig != 0)
1092 panic("Panic triggered");
1093
1094 return (error);
1095 }
1096 #endif
1097
1098 /*
1099 * sysctl helper routine for kern.maxvnodes. Drain vnodes if
1100 * new value is lower than desiredvnodes and then calls reinit
1101 * routines that needs to adjust to the new value.
1102 */
1103 static int
1104 sysctl_kern_maxvnodes(SYSCTLFN_ARGS)
1105 {
1106 int error, new_vnodes, old_vnodes, new_max;
1107 struct sysctlnode node;
1108
1109 new_vnodes = desiredvnodes;
1110 node = *rnode;
1111 node.sysctl_data = &new_vnodes;
1112 error = sysctl_lookup(SYSCTLFN_CALL(&node));
1113 if (error || newp == NULL)
1114 return (error);
1115
1116 /* Limits: 75% of KVA and physical memory. */
1117 new_max = calc_cache_size(kernel_map, 75, 75) / VNODE_COST;
1118 if (new_vnodes > new_max)
1119 new_vnodes = new_max;
1120
1121 old_vnodes = desiredvnodes;
1122 desiredvnodes = new_vnodes;
1123 if (new_vnodes < old_vnodes) {
1124 error = vfs_drainvnodes(new_vnodes, l);
1125 if (error) {
1126 desiredvnodes = old_vnodes;
1127 return (error);
1128 }
1129 }
1130 vfs_reinit();
1131 nchreinit();
1132
1133 return (0);
1134 }
1135
1136 /*
1137 * sysctl helper routine for rtc_offset - set time after changes
1138 */
1139 static int
1140 sysctl_kern_rtc_offset(SYSCTLFN_ARGS)
1141 {
1142 struct timespec ts, delta;
1143 int error, new_rtc_offset;
1144 struct sysctlnode node;
1145
1146 new_rtc_offset = rtc_offset;
1147 node = *rnode;
1148 node.sysctl_data = &new_rtc_offset;
1149 error = sysctl_lookup(SYSCTLFN_CALL(&node));
1150 if (error || newp == NULL)
1151 return (error);
1152
1153 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME,
1154 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET,
1155 KAUTH_ARG(new_rtc_offset), NULL, NULL))
1156 return (EPERM);
1157 if (rtc_offset == new_rtc_offset)
1158 return (0);
1159
1160 /* if we change the offset, adjust the time */
1161 nanotime(&ts);
1162 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset);
1163 delta.tv_nsec = 0;
1164 timespecadd(&ts, &delta, &ts);
1165 rtc_offset = new_rtc_offset;
1166 return (settime(l->l_proc, &ts));
1167 }
1168
1169 /*
1170 * sysctl helper routine for kern.maxproc. Ensures that the new
1171 * values are not too low or too high.
1172 */
1173 static int
1174 sysctl_kern_maxproc(SYSCTLFN_ARGS)
1175 {
1176 int error, nmaxproc;
1177 struct sysctlnode node;
1178
1179 nmaxproc = maxproc;
1180 node = *rnode;
1181 node.sysctl_data = &nmaxproc;
1182 error = sysctl_lookup(SYSCTLFN_CALL(&node));
1183 if (error || newp == NULL)
1184 return (error);
1185
1186 if (nmaxproc < 0 || nmaxproc >= PID_MAX)
1187 return (EINVAL);
1188 #ifdef __HAVE_CPU_MAXPROC
1189 if (nmaxproc > cpu_maxproc())
1190 return (EINVAL);
1191 #endif
1192 maxproc = nmaxproc;
1193
1194 return (0);
1195 }
1196
1197 /*
1198 * sysctl helper function for kern.hostid. The hostid is a long, but
1199 * we export it as an int, so we need to give it a little help.
1200 */
1201 static int
1202 sysctl_kern_hostid(SYSCTLFN_ARGS)
1203 {
1204 int error, inthostid;
1205 struct sysctlnode node;
1206
1207 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */
1208 node = *rnode;
1209 node.sysctl_data = &inthostid;
1210 error = sysctl_lookup(SYSCTLFN_CALL(&node));
1211 if (error || newp == NULL)
1212 return (error);
1213
1214 hostid = (unsigned)inthostid;
1215
1216 return (0);
1217 }
1218
1219 /*
1220 * sysctl helper function for kern.hostname and kern.domainnname.
1221 * resets the relevant recorded length when the underlying name is
1222 * changed.
1223 */
1224 static int
1225 sysctl_setlen(SYSCTLFN_ARGS)
1226 {
1227 int error;
1228
1229 error = sysctl_lookup(SYSCTLFN_CALL(rnode));
1230 if (error || newp == NULL)
1231 return (error);
1232
1233 switch (rnode->sysctl_num) {
1234 case KERN_HOSTNAME:
1235 hostnamelen = strlen((const char*)rnode->sysctl_data);
1236 break;
1237 case KERN_DOMAINNAME:
1238 domainnamelen = strlen((const char*)rnode->sysctl_data);
1239 break;
1240 }
1241
1242 return (0);
1243 }
1244
1245 /*
1246 * sysctl helper routine for kern.clockrate. Assembles a struct on
1247 * the fly to be returned to the caller.
1248 */
1249 static int
1250 sysctl_kern_clockrate(SYSCTLFN_ARGS)
1251 {
1252 struct clockinfo clkinfo;
1253 struct sysctlnode node;
1254
1255 clkinfo.tick = tick;
1256 clkinfo.tickadj = tickadj;
1257 clkinfo.hz = hz;
1258 clkinfo.profhz = profhz;
1259 clkinfo.stathz = stathz ? stathz : hz;
1260
1261 node = *rnode;
1262 node.sysctl_data = &clkinfo;
1263 return (sysctl_lookup(SYSCTLFN_CALL(&node)));
1264 }
1265
1266
1267 /*
1268 * sysctl helper routine for kern.file pseudo-subtree.
1269 */
1270 static int
1271 sysctl_kern_file(SYSCTLFN_ARGS)
1272 {
1273 int error;
1274 size_t buflen;
1275 struct file *fp, *dp, *np, fbuf;
1276 char *start, *where;
1277
1278 start = where = oldp;
1279 buflen = *oldlenp;
1280 dp = NULL;
1281
1282 if (where == NULL) {
1283 /*
1284 * overestimate by 10 files
1285 */
1286 *oldlenp = sizeof(filehead) + (nfiles + 10) *
1287 sizeof(struct file);
1288 return (0);
1289 }
1290
1291 /*
1292 * first dcopyout filehead
1293 */
1294 if (buflen < sizeof(filehead)) {
1295 *oldlenp = 0;
1296 return (0);
1297 }
1298 sysctl_unlock();
1299 error = dcopyout(l, &filehead, where, sizeof(filehead));
1300 if (error) {
1301 sysctl_relock();
1302 return error;
1303 }
1304 buflen -= sizeof(filehead);
1305 where += sizeof(filehead);
1306
1307 /*
1308 * allocate dummy file descriptor to make position in list
1309 */
1310 if ((dp = fgetdummy()) == NULL) {
1311 sysctl_relock();
1312 return ENOMEM;
1313 }
1314
1315 /*
1316 * followed by an array of file structures
1317 */
1318 mutex_enter(&filelist_lock);
1319 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) {
1320 np = LIST_NEXT(fp, f_list);
1321 mutex_enter(&fp->f_lock);
1322 if (fp->f_count == 0) {
1323 mutex_exit(&fp->f_lock);
1324 continue;
1325 }
1326 /*
1327 * XXX Need to prevent that from being an alternative way
1328 * XXX to getting process information.
1329 */
1330 if (kauth_authorize_generic(l->l_cred,
1331 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) {
1332 mutex_exit(&fp->f_lock);
1333 continue;
1334 }
1335 if (buflen < sizeof(struct file)) {
1336 *oldlenp = where - start;
1337 mutex_exit(&fp->f_lock);
1338 error = ENOMEM;
1339 break;
1340 }
1341 memcpy(&fbuf, fp, sizeof(fbuf));
1342 LIST_INSERT_AFTER(fp, dp, f_list);
1343 mutex_exit(&fp->f_lock);
1344 mutex_exit(&filelist_lock);
1345 error = dcopyout(l, &fbuf, where, sizeof(fbuf));
1346 if (error) {
1347 mutex_enter(&filelist_lock);
1348 LIST_REMOVE(dp, f_list);
1349 break;
1350 }
1351 buflen -= sizeof(struct file);
1352 where += sizeof(struct file);
1353 mutex_enter(&filelist_lock);
1354 np = LIST_NEXT(dp, f_list);
1355 LIST_REMOVE(dp, f_list);
1356 }
1357 mutex_exit(&filelist_lock);
1358 *oldlenp = where - start;
1359 if (dp != NULL)
1360 fputdummy(dp);
1361 sysctl_relock();
1362 return (error);
1363 }
1364
1365 /*
1366 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the
1367 * former it merely checks the message buffer is set up. For the latter,
1368 * it also copies out the data if necessary.
1369 */
1370 static int
1371 sysctl_msgbuf(SYSCTLFN_ARGS)
1372 {
1373 char *where = oldp;
1374 size_t len, maxlen;
1375 long beg, end;
1376 extern kmutex_t log_lock;
1377 int error;
1378
1379 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) {
1380 msgbufenabled = 0;
1381 return (ENXIO);
1382 }
1383
1384 switch (rnode->sysctl_num) {
1385 case KERN_MSGBUFSIZE: {
1386 struct sysctlnode node = *rnode;
1387 int msg_bufs = (int)msgbufp->msg_bufs;
1388 node.sysctl_data = &msg_bufs;
1389 return (sysctl_lookup(SYSCTLFN_CALL(&node)));
1390 }
1391 case KERN_MSGBUF:
1392 break;
1393 default:
1394 return (EOPNOTSUPP);
1395 }
1396
1397 if (newp != NULL)
1398 return (EPERM);
1399
1400 if (oldp == NULL) {
1401 /* always return full buffer size */
1402 *oldlenp = msgbufp->msg_bufs;
1403 return (0);
1404 }
1405
1406 sysctl_unlock();
1407
1408 /*
1409 * First, copy from the write pointer to the end of
1410 * message buffer.
1411 */
1412 error = 0;
1413 mutex_spin_enter(&log_lock);
1414 maxlen = MIN(msgbufp->msg_bufs, *oldlenp);
1415 beg = msgbufp->msg_bufx;
1416 end = msgbufp->msg_bufs;
1417 mutex_spin_exit(&log_lock);
1418
1419 while (maxlen > 0) {
1420 len = MIN(end - beg, maxlen);
1421 if (len == 0)
1422 break;
1423 /* XXX unlocked, but hardly matters. */
1424 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len);
1425 if (error)
1426 break;
1427 where += len;
1428 maxlen -= len;
1429
1430 /*
1431 * ... then, copy from the beginning of message buffer to
1432 * the write pointer.
1433 */
1434 beg = 0;
1435 end = msgbufp->msg_bufx;
1436 }
1437
1438 sysctl_relock();
1439 return (error);
1440 }
1441
1442 /*
1443 * sysctl helper routine for kern.defcorename. In the case of a new
1444 * string being assigned, check that it's not a zero-length string.
1445 * (XXX the check in -current doesn't work, but do we really care?)
1446 */
1447 static int
1448 sysctl_kern_defcorename(SYSCTLFN_ARGS)
1449 {
1450 int error;
1451 char *newcorename;
1452 struct sysctlnode node;
1453
1454 newcorename = PNBUF_GET();
1455 node = *rnode;
1456 node.sysctl_data = &newcorename[0];
1457 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN);
1458 error = sysctl_lookup(SYSCTLFN_CALL(&node));
1459 if (error || newp == NULL) {
1460 goto done;
1461 }
1462
1463 /*
1464 * when sysctl_lookup() deals with a string, it's guaranteed
1465 * to come back nul terminated. So there. :)
1466 */
1467 if (strlen(newcorename) == 0) {
1468 error = EINVAL;
1469 } else {
1470 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN);
1471 error = 0;
1472 }
1473 done:
1474 PNBUF_PUT(newcorename);
1475 return error;
1476 }
1477
1478 /*
1479 * sysctl helper routine for kern.cp_time node. Adds up cpu time
1480 * across all cpus.
1481 */
1482 static int
1483 sysctl_kern_cptime(SYSCTLFN_ARGS)
1484 {
1485 struct sysctlnode node = *rnode;
1486 uint64_t *cp_time = NULL;
1487 int error, n = ncpu, i;
1488 struct cpu_info *ci;
1489 CPU_INFO_ITERATOR cii;
1490
1491 /*
1492 * if you specifically pass a buffer that is the size of the
1493 * sum, or if you are probing for the size, you get the "sum"
1494 * of cp_time (and the size thereof) across all processors.
1495 *
1496 * alternately, you can pass an additional mib number and get
1497 * cp_time for that particular processor.
1498 */
1499 switch (namelen) {
1500 case 0:
1501 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) {
1502 node.sysctl_size = sizeof(uint64_t) * CPUSTATES;
1503 n = -1; /* SUM */
1504 }
1505 else {
1506 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES;
1507 n = -2; /* ALL */
1508 }
1509 break;
1510 case 1:
1511 if (name[0] < 0 || name[0] >= n)
1512 return (ENOENT); /* ENOSUCHPROCESSOR */
1513 node.sysctl_size = sizeof(uint64_t) * CPUSTATES;
1514 n = name[0];
1515 /*
1516 * adjust these so that sysctl_lookup() will be happy
1517 */
1518 name++;
1519 namelen--;
1520 break;
1521 default:
1522 return (EINVAL);
1523 }
1524
1525 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP);
1526 if (cp_time == NULL)
1527 return (ENOMEM);
1528 node.sysctl_data = cp_time;
1529 memset(cp_time, 0, node.sysctl_size);
1530
1531 for (CPU_INFO_FOREACH(cii, ci)) {
1532 if (n <= 0) {
1533 for (i = 0; i < CPUSTATES; i++) {
1534 cp_time[i] += ci->ci_schedstate.spc_cp_time[i];
1535 }
1536 }
1537 /*
1538 * if a specific processor was requested and we just
1539 * did it, we're done here
1540 */
1541 if (n == 0)
1542 break;
1543 /*
1544 * if doing "all", skip to next cp_time set for next processor
1545 */
1546 if (n == -2)
1547 cp_time += CPUSTATES;
1548 /*
1549 * if we're doing a specific processor, we're one
1550 * processor closer
1551 */
1552 if (n > 0)
1553 n--;
1554 }
1555
1556 error = sysctl_lookup(SYSCTLFN_CALL(&node));
1557 kmem_free(node.sysctl_data, node.sysctl_size);
1558 return (error);
1559 }
1560
1561 #if NPTY > 0
1562 /*
1563 * sysctl helper routine for kern.maxptys. Ensures that any new value
1564 * is acceptable to the pty subsystem.
1565 */
1566 static int
1567 sysctl_kern_maxptys(SYSCTLFN_ARGS)
1568 {
1569 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */
1570 int error, xmax;
1571 struct sysctlnode node;
1572
1573 /* get current value of maxptys */
1574 xmax = pty_maxptys(0, 0);
1575
1576 node = *rnode;
1577 node.sysctl_data = &xmax;
1578 error = sysctl_lookup(SYSCTLFN_CALL(&node));
1579 if (error || newp == NULL)
1580 return (error);
1581
1582 if (xmax != pty_maxptys(xmax, 1))
1583 return (EINVAL);
1584
1585 return (0);
1586 }
1587 #endif /* NPTY > 0 */
1588
1589 /*
1590 * sysctl helper routine for kern.sbmax. Basically just ensures that
1591 * any new value is not too small.
1592 */
1593 static int
1594 sysctl_kern_sbmax(SYSCTLFN_ARGS)
1595 {
1596 int error, new_sbmax;
1597 struct sysctlnode node;
1598
1599 new_sbmax = sb_max;
1600 node = *rnode;
1601 node.sysctl_data = &new_sbmax;
1602 error = sysctl_lookup(SYSCTLFN_CALL(&node));
1603 if (error || newp == NULL)
1604 return (error);
1605
1606 KERNEL_LOCK(1, NULL);
1607 error = sb_max_set(new_sbmax);
1608 KERNEL_UNLOCK_ONE(NULL);
1609
1610 return (error);
1611 }
1612
1613 /*
1614 * sysctl helper routine for kern.urandom node. Picks a random number
1615 * for you.
1616 */
1617 static int
1618 sysctl_kern_urnd(SYSCTLFN_ARGS)
1619 {
1620 #if NRND > 0
1621 int v, rv;
1622
1623 KERNEL_LOCK(1, NULL);
1624 rv = rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY);
1625 KERNEL_UNLOCK_ONE(NULL);
1626 if (rv == sizeof(v)) {
1627 struct sysctlnode node = *rnode;
1628 node.sysctl_data = &v;
1629 return (sysctl_lookup(SYSCTLFN_CALL(&node)));
1630 }
1631 else
1632 return (EIO); /*XXX*/
1633 #else
1634 return (EOPNOTSUPP);
1635 #endif
1636 }
1637
1638 /*
1639 * sysctl helper routine for kern.arandom node. Picks a random number
1640 * for you.
1641 */
1642 static int
1643 sysctl_kern_arnd(SYSCTLFN_ARGS)
1644 {
1645 #if NRND > 0
1646 int error;
1647 void *v;
1648 struct sysctlnode node = *rnode;
1649
1650 if (*oldlenp == 0)
1651 return 0;
1652 if (*oldlenp > 8192)
1653 return E2BIG;
1654
1655 v = kmem_alloc(*oldlenp, KM_SLEEP);
1656 arc4randbytes(v, *oldlenp);
1657 node.sysctl_data = v;
1658 node.sysctl_size = *oldlenp;
1659 error = sysctl_lookup(SYSCTLFN_CALL(&node));
1660 kmem_free(v, *oldlenp);
1661 return error;
1662 #else
1663 return (EOPNOTSUPP);
1664 #endif
1665 }
1666 /*
1667 * sysctl helper routine to do kern.lwp.* work.
1668 */
1669 static int
1670 sysctl_kern_lwp(SYSCTLFN_ARGS)
1671 {
1672 struct kinfo_lwp klwp;
1673 struct proc *p;
1674 struct lwp *l2, *l3;
1675 char *where, *dp;
1676 int pid, elem_size, elem_count;
1677 int buflen, needed, error;
1678 bool gotit;
1679
1680 if (namelen == 1 && name[0] == CTL_QUERY)
1681 return (sysctl_query(SYSCTLFN_CALL(rnode)));
1682
1683 dp = where = oldp;
1684 buflen = where != NULL ? *oldlenp : 0;
1685 error = needed = 0;
1686
1687 if (newp != NULL || namelen != 3)
1688 return (EINVAL);
1689 pid = name[0];
1690 elem_size = name[1];
1691 elem_count = name[2];
1692
1693 sysctl_unlock();
1694 if (pid == -1) {
1695 mutex_enter(proc_lock);
1696 PROCLIST_FOREACH(p, &allproc) {
1697 /* Grab a hold on the process. */
1698 if (!rw_tryenter(&p->p_reflock, RW_READER)) {
1699 continue;
1700 }
1701 mutex_exit(proc_lock);
1702
1703 mutex_enter(p->p_lock);
1704 LIST_FOREACH(l2, &p->p_lwps, l_sibling) {
1705 if (buflen >= elem_size && elem_count > 0) {
1706 lwp_lock(l2);
1707 fill_lwp(l2, &klwp);
1708 lwp_unlock(l2);
1709 mutex_exit(p->p_lock);
1710
1711 /*
1712 * Copy out elem_size, but not
1713 * larger than the size of a
1714 * struct kinfo_proc2.
1715 */
1716 error = dcopyout(l, &klwp, dp,
1717 min(sizeof(klwp), elem_size));
1718 if (error) {
1719 rw_exit(&p->p_reflock);
1720 goto cleanup;
1721 }
1722 mutex_enter(p->p_lock);
1723 LIST_FOREACH(l3, &p->p_lwps,
1724 l_sibling) {
1725 if (l2 == l3)
1726 break;
1727 }
1728 if (l3 == NULL) {
1729 mutex_exit(p->p_lock);
1730 rw_exit(&p->p_reflock);
1731 error = EAGAIN;
1732 goto cleanup;
1733 }
1734 dp += elem_size;
1735 buflen -= elem_size;
1736 elem_count--;
1737 }
1738 needed += elem_size;
1739 }
1740 mutex_exit(p->p_lock);
1741
1742 /* Drop reference to process. */
1743 mutex_enter(proc_lock);
1744 rw_exit(&p->p_reflock);
1745 }
1746 mutex_exit(proc_lock);
1747 } else {
1748 mutex_enter(proc_lock);
1749 p = p_find(pid, PFIND_LOCKED);
1750 if (p == NULL) {
1751 error = ESRCH;
1752 mutex_exit(proc_lock);
1753 goto cleanup;
1754 }
1755 /* Grab a hold on the process. */
1756 gotit = rw_tryenter(&p->p_reflock, RW_READER);
1757 mutex_exit(proc_lock);
1758 if (!gotit) {
1759 error = ESRCH;
1760 goto cleanup;
1761 }
1762
1763 mutex_enter(p->p_lock);
1764 LIST_FOREACH(l2, &p->p_lwps, l_sibling) {
1765 if (buflen >= elem_size && elem_count > 0) {
1766 lwp_lock(l2);
1767 fill_lwp(l2, &klwp);
1768 lwp_unlock(l2);
1769 mutex_exit(p->p_lock);
1770 /*
1771 * Copy out elem_size, but not larger than
1772 * the size of a struct kinfo_proc2.
1773 */
1774 error = dcopyout(l, &klwp, dp,
1775 min(sizeof(klwp), elem_size));
1776 if (error) {
1777 rw_exit(&p->p_reflock);
1778 goto cleanup;
1779 }
1780 mutex_enter(p->p_lock);
1781 LIST_FOREACH(l3, &p->p_lwps, l_sibling) {
1782 if (l2 == l3)
1783 break;
1784 }
1785 if (l3 == NULL) {
1786 mutex_exit(p->p_lock);
1787 rw_exit(&p->p_reflock);
1788 error = EAGAIN;
1789 goto cleanup;
1790 }
1791 dp += elem_size;
1792 buflen -= elem_size;
1793 elem_count--;
1794 }
1795 needed += elem_size;
1796 }
1797 mutex_exit(p->p_lock);
1798
1799 /* Drop reference to process. */
1800 rw_exit(&p->p_reflock);
1801 }
1802
1803 if (where != NULL) {
1804 *oldlenp = dp - where;
1805 if (needed > *oldlenp) {
1806 sysctl_relock();
1807 return (ENOMEM);
1808 }
1809 } else {
1810 needed += KERN_LWPSLOP;
1811 *oldlenp = needed;
1812 }
1813 error = 0;
1814 cleanup:
1815 sysctl_relock();
1816 return (error);
1817 }
1818
1819 /*
1820 * sysctl helper routine for kern.forkfsleep node. Ensures that the
1821 * given value is not too large or two small, and is at least one
1822 * timer tick if not zero.
1823 */
1824 static int
1825 sysctl_kern_forkfsleep(SYSCTLFN_ARGS)
1826 {
1827 /* userland sees value in ms, internally is in ticks */
1828 extern int forkfsleep; /* defined in kern/kern_fork.c */
1829 int error, timo, lsleep;
1830 struct sysctlnode node;
1831
1832 lsleep = forkfsleep * 1000 / hz;
1833 node = *rnode;
1834 node.sysctl_data = &lsleep;
1835 error = sysctl_lookup(SYSCTLFN_CALL(&node));
1836 if (error || newp == NULL)
1837 return (error);
1838
1839 /* refuse negative values, and overly 'long time' */
1840 if (lsleep < 0 || lsleep > MAXSLP * 1000)
1841 return (EINVAL);
1842
1843 timo = mstohz(lsleep);
1844
1845 /* if the interval is >0 ms && <1 tick, use 1 tick */
1846 if (lsleep != 0 && timo == 0)
1847 forkfsleep = 1;
1848 else
1849 forkfsleep = timo;
1850
1851 return (0);
1852 }
1853
1854 /*
1855 * sysctl helper routine for kern.root_partition
1856 */
1857 static int
1858 sysctl_kern_root_partition(SYSCTLFN_ARGS)
1859 {
1860 int rootpart = DISKPART(rootdev);
1861 struct sysctlnode node = *rnode;
1862
1863 node.sysctl_data = &rootpart;
1864 return (sysctl_lookup(SYSCTLFN_CALL(&node)));
1865 }
1866
1867 /*
1868 * sysctl helper function for kern.drivers
1869 */
1870 static int
1871 sysctl_kern_drivers(SYSCTLFN_ARGS)
1872 {
1873 int error;
1874 size_t buflen;
1875 struct kinfo_drivers kd;
1876 char *start, *where;
1877 const char *dname;
1878 int i;
1879 extern struct devsw_conv *devsw_conv;
1880 extern int max_devsw_convs;
1881
1882 if (newp != NULL || namelen != 0)
1883 return (EINVAL);
1884
1885 start = where = oldp;
1886 buflen = *oldlenp;
1887 if (where == NULL) {
1888 *oldlenp = max_devsw_convs * sizeof kd;
1889 return 0;
1890 }
1891
1892 /*
1893 * An array of kinfo_drivers structures
1894 */
1895 error = 0;
1896 sysctl_unlock();
1897 mutex_enter(&specfs_lock);
1898 for (i = 0; i < max_devsw_convs; i++) {
1899 dname = devsw_conv[i].d_name;
1900 if (dname == NULL)
1901 continue;
1902 if (buflen < sizeof kd) {
1903 error = ENOMEM;
1904 break;
1905 }
1906 memset(&kd, 0, sizeof(kd));
1907 kd.d_bmajor = devsw_conv[i].d_bmajor;
1908 kd.d_cmajor = devsw_conv[i].d_cmajor;
1909 strlcpy(kd.d_name, dname, sizeof kd.d_name);
1910 mutex_exit(&specfs_lock);
1911 error = dcopyout(l, &kd, where, sizeof kd);
1912 mutex_enter(&specfs_lock);
1913 if (error != 0)
1914 break;
1915 buflen -= sizeof kd;
1916 where += sizeof kd;
1917 }
1918 mutex_exit(&specfs_lock);
1919 sysctl_relock();
1920 *oldlenp = where - start;
1921 return error;
1922 }
1923
1924 /*
1925 * sysctl helper function for kern.file2
1926 */
1927 static int
1928 sysctl_kern_file2(SYSCTLFN_ARGS)
1929 {
1930 struct proc *p;
1931 struct file *fp, *tp, *np;
1932 struct filedesc *fd;
1933 struct kinfo_file kf;
1934 char *dp;
1935 u_int i, op;
1936 size_t len, needed, elem_size, out_size;
1937 int error, arg, elem_count;
1938 fdfile_t *ff;
1939
1940 if (namelen == 1 && name[0] == CTL_QUERY)
1941 return (sysctl_query(SYSCTLFN_CALL(rnode)));
1942
1943 if (namelen != 4)
1944 return (EINVAL);
1945
1946 error = 0;
1947 dp = oldp;
1948 len = (oldp != NULL) ? *oldlenp : 0;
1949 op = name[0];
1950 arg = name[1];
1951 elem_size = name[2];
1952 elem_count = name[3];
1953 out_size = MIN(sizeof(kf), elem_size);
1954 needed = 0;
1955
1956 if (elem_size < 1 || elem_count < 0)
1957 return (EINVAL);
1958
1959 switch (op) {
1960 case KERN_FILE_BYFILE:
1961 /*
1962 * doesn't use arg so it must be zero
1963 */
1964 if (arg != 0)
1965 return (EINVAL);
1966 sysctl_unlock();
1967 /*
1968 * allocate dummy file descriptor to make position in list
1969 */
1970 if ((tp = fgetdummy()) == NULL) {
1971 sysctl_relock();
1972 return ENOMEM;
1973 }
1974 mutex_enter(&filelist_lock);
1975 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) {
1976 np = LIST_NEXT(fp, f_list);
1977 mutex_enter(&fp->f_lock);
1978 if (fp->f_count == 0) {
1979 mutex_exit(&fp->f_lock);
1980 continue;
1981 }
1982 /*
1983 * XXX Need to prevent that from being an alternative
1984 * XXX way for getting process information.
1985 */
1986 if (kauth_authorize_generic(l->l_cred,
1987 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) {
1988 mutex_exit(&fp->f_lock);
1989 continue;
1990 }
1991 if (len >= elem_size && elem_count > 0) {
1992 fill_file(&kf, fp, NULL, 0, 0);
1993 LIST_INSERT_AFTER(fp, tp, f_list);
1994 mutex_exit(&fp->f_lock);
1995 mutex_exit(&filelist_lock);
1996 error = dcopyout(l, &kf, dp, out_size);
1997 mutex_enter(&filelist_lock);
1998 np = LIST_NEXT(tp, f_list);
1999 LIST_REMOVE(tp, f_list);
2000 if (error) {
2001 break;
2002 }
2003 dp += elem_size;
2004 len -= elem_size;
2005 } else {
2006 mutex_exit(&fp->f_lock);
2007 }
2008 needed += elem_size;
2009 if (elem_count > 0) {
2010 if (elem_count != INT_MAX)
2011 elem_count--;
2012 }
2013 }
2014 mutex_exit(&filelist_lock);
2015 fputdummy(tp);
2016 sysctl_relock();
2017 break;
2018 case KERN_FILE_BYPID:
2019 if (arg < -1)
2020 /* -1 means all processes */
2021 return (EINVAL);
2022 sysctl_unlock();
2023 mutex_enter(proc_lock);
2024 PROCLIST_FOREACH(p, &allproc) {
2025 if (p->p_stat == SIDL) {
2026 /* skip embryonic processes */
2027 continue;
2028 }
2029 if (arg > 0 && p->p_pid != arg) {
2030 /* pick only the one we want */
2031 /* XXX want 0 to mean "kernel files" */
2032 continue;
2033 }
2034 mutex_enter(p->p_lock);
2035 error = kauth_authorize_process(l->l_cred,
2036 KAUTH_PROCESS_CANSEE, p,
2037 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_OPENFILES),
2038 NULL, NULL);
2039 mutex_exit(p->p_lock);
2040 if (error != 0) {
2041 /*
2042 * Don't leak kauth retval if we're silently
2043 * skipping this entry.
2044 */
2045 error = 0;
2046 continue;
2047 }
2048
2049 /*
2050 * Grab a hold on the process.
2051 */
2052 if (!rw_tryenter(&p->p_reflock, RW_READER)) {
2053 continue;
2054 }
2055 mutex_exit(proc_lock);
2056
2057 /* XXX Do we need to check permission per file? */
2058 fd = p->p_fd;
2059 mutex_enter(&fd->fd_lock);
2060 for (i = 0; i < fd->fd_nfiles; i++) {
2061 if ((ff = fd->fd_ofiles[i]) == NULL) {
2062 continue;
2063 }
2064 mutex_enter(&ff->ff_lock);
2065 if ((fp = ff->ff_file) == NULL) {
2066 mutex_exit(&ff->ff_lock);
2067 continue;
2068 }
2069 if (len >= elem_size && elem_count > 0) {
2070 mutex_enter(&fp->f_lock);
2071 fill_file(&kf, fp, ff, i, p->p_pid);
2072 mutex_exit(&fp->f_lock);
2073 mutex_exit(&ff->ff_lock);
2074 mutex_exit(&fd->fd_lock);
2075 error = dcopyout(l, &kf, dp, out_size);
2076 mutex_enter(&fd->fd_lock);
2077 if (error)
2078 break;
2079 dp += elem_size;
2080 len -= elem_size;
2081 } else {
2082 mutex_exit(&ff->ff_lock);
2083 }
2084 needed += elem_size;
2085 if (elem_count > 0) {
2086 if (elem_count != INT_MAX)
2087 elem_count--;
2088 }
2089 }
2090 mutex_exit(&fd->fd_lock);
2091
2092 /*
2093 * Release reference to process.
2094 */
2095 mutex_enter(proc_lock);
2096 rw_exit(&p->p_reflock);
2097 }
2098 mutex_exit(proc_lock);
2099 sysctl_relock();
2100 break;
2101 default:
2102 return (EINVAL);
2103 }
2104
2105 if (oldp == NULL)
2106 needed += KERN_FILESLOP * elem_size;
2107 *oldlenp = needed;
2108
2109 return (error);
2110 }
2111
2112 static void
2113 fill_file(struct kinfo_file *kp, const file_t *fp, const fdfile_t *ff,
2114 int i, pid_t pid)
2115 {
2116
2117 memset(kp, 0, sizeof(*kp));
2118
2119 kp->ki_fileaddr = PTRTOUINT64(fp);
2120 kp->ki_flag = fp->f_flag;
2121 kp->ki_iflags = 0;
2122 kp->ki_ftype = fp->f_type;
2123 kp->ki_count = fp->f_count;
2124 kp->ki_msgcount = fp->f_msgcount;
2125 kp->ki_fucred = PTRTOUINT64(fp->f_cred);
2126 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred);
2127 kp->ki_fgid = kauth_cred_getegid(fp->f_cred);
2128 kp->ki_fops = PTRTOUINT64(fp->f_ops);
2129 kp->ki_foffset = fp->f_offset;
2130 kp->ki_fdata = PTRTOUINT64(fp->f_data);
2131
2132 /* vnode information to glue this file to something */
2133 if (fp->f_type == DTYPE_VNODE) {
2134 struct vnode *vp = (struct vnode *)fp->f_data;
2135
2136 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket);
2137 kp->ki_vsize = vp->v_size;
2138 kp->ki_vtype = vp->v_type;
2139 kp->ki_vtag = vp->v_tag;
2140 kp->ki_vdata = PTRTOUINT64(vp->v_data);
2141 }
2142
2143 /* process information when retrieved via KERN_FILE_BYPID */
2144 if (ff != NULL) {
2145 kp->ki_pid = pid;
2146 kp->ki_fd = i;
2147 kp->ki_ofileflags = ff->ff_exclose;
2148 kp->ki_usecount = ff->ff_refcnt;
2149 }
2150 }
2151
2152 static int
2153 sysctl_doeproc(SYSCTLFN_ARGS)
2154 {
2155 union {
2156 struct kinfo_proc kproc;
2157 struct kinfo_proc2 kproc2;
2158 } *kbuf;
2159 struct proc *p, *next, *marker;
2160 char *where, *dp;
2161 int type, op, arg, error;
2162 u_int elem_size, kelem_size, elem_count;
2163 size_t buflen, needed;
2164 bool match, zombie, mmmbrains;
2165
2166 if (namelen == 1 && name[0] == CTL_QUERY)
2167 return (sysctl_query(SYSCTLFN_CALL(rnode)));
2168
2169 dp = where = oldp;
2170 buflen = where != NULL ? *oldlenp : 0;
2171 error = 0;
2172 needed = 0;
2173 type = rnode->sysctl_num;
2174
2175 if (type == KERN_PROC) {
2176 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL))
2177 return (EINVAL);
2178 op = name[0];
2179 if (op != KERN_PROC_ALL)
2180 arg = name[1];
2181 else
2182 arg = 0; /* Quell compiler warning */
2183 elem_count = 0; /* Ditto */
2184 kelem_size = elem_size = sizeof(kbuf->kproc);
2185 } else {
2186 if (namelen != 4)
2187 return (EINVAL);
2188 op = name[0];
2189 arg = name[1];
2190 elem_size = name[2];
2191 elem_count = name[3];
2192 kelem_size = sizeof(kbuf->kproc2);
2193 }
2194
2195 sysctl_unlock();
2196
2197 kbuf = kmem_alloc(sizeof(*kbuf), KM_SLEEP);
2198 marker = kmem_alloc(sizeof(*marker), KM_SLEEP);
2199 marker->p_flag = PK_MARKER;
2200
2201 mutex_enter(proc_lock);
2202 mmmbrains = false;
2203 for (p = LIST_FIRST(&allproc);; p = next) {
2204 if (p == NULL) {
2205 if (!mmmbrains) {
2206 p = LIST_FIRST(&zombproc);
2207 mmmbrains = true;
2208 }
2209 if (p == NULL)
2210 break;
2211 }
2212 next = LIST_NEXT(p, p_list);
2213 if ((p->p_flag & PK_MARKER) != 0)
2214 continue;
2215
2216 /*
2217 * Skip embryonic processes.
2218 */
2219 if (p->p_stat == SIDL)
2220 continue;
2221
2222 mutex_enter(p->p_lock);
2223 error = kauth_authorize_process(l->l_cred,
2224 KAUTH_PROCESS_CANSEE, p,
2225 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENTRY), NULL, NULL);
2226 if (error != 0) {
2227 mutex_exit(p->p_lock);
2228 continue;
2229 }
2230
2231 /*
2232 * TODO - make more efficient (see notes below).
2233 * do by session.
2234 */
2235 switch (op) {
2236 case KERN_PROC_PID:
2237 /* could do this with just a lookup */
2238 match = (p->p_pid == (pid_t)arg);
2239 break;
2240
2241 case KERN_PROC_PGRP:
2242 /* could do this by traversing pgrp */
2243 match = (p->p_pgrp->pg_id == (pid_t)arg);
2244 break;
2245
2246 case KERN_PROC_SESSION:
2247 match = (p->p_session->s_sid == (pid_t)arg);
2248 break;
2249
2250 case KERN_PROC_TTY:
2251 match = true;
2252 if (arg == (int) KERN_PROC_TTY_REVOKE) {
2253 if ((p->p_lflag & PL_CONTROLT) == 0 ||
2254 p->p_session->s_ttyp == NULL ||
2255 p->p_session->s_ttyvp != NULL) {
2256 match = false;
2257 }
2258 } else if ((p->p_lflag & PL_CONTROLT) == 0 ||
2259 p->p_session->s_ttyp == NULL) {
2260 if ((dev_t)arg != KERN_PROC_TTY_NODEV) {
2261 match = false;
2262 }
2263 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) {
2264 match = false;
2265 }
2266 break;
2267
2268 case KERN_PROC_UID:
2269 match = (kauth_cred_geteuid(p->p_cred) == (uid_t)arg);
2270 break;
2271
2272 case KERN_PROC_RUID:
2273 match = (kauth_cred_getuid(p->p_cred) == (uid_t)arg);
2274 break;
2275
2276 case KERN_PROC_GID:
2277 match = (kauth_cred_getegid(p->p_cred) == (uid_t)arg);
2278 break;
2279
2280 case KERN_PROC_RGID:
2281 match = (kauth_cred_getgid(p->p_cred) == (uid_t)arg);
2282 break;
2283
2284 case KERN_PROC_ALL:
2285 match = true;
2286 /* allow everything */
2287 break;
2288
2289 default:
2290 error = EINVAL;
2291 mutex_exit(p->p_lock);
2292 goto cleanup;
2293 }
2294 if (!match) {
2295 mutex_exit(p->p_lock);
2296 continue;
2297 }
2298
2299 /*
2300 * Grab a hold on the process.
2301 */
2302 if (mmmbrains) {
2303 zombie = true;
2304 } else {
2305 zombie = !rw_tryenter(&p->p_reflock, RW_READER);
2306 }
2307 if (zombie) {
2308 LIST_INSERT_AFTER(p, marker, p_list);
2309 }
2310
2311 if (buflen >= elem_size &&
2312 (type == KERN_PROC || elem_count > 0)) {
2313 if (type == KERN_PROC) {
2314 kbuf->kproc.kp_proc = *p;
2315 fill_eproc(p, &kbuf->kproc.kp_eproc, zombie);
2316 } else {
2317 fill_kproc2(p, &kbuf->kproc2, zombie);
2318 elem_count--;
2319 }
2320 mutex_exit(p->p_lock);
2321 mutex_exit(proc_lock);
2322 /*
2323 * Copy out elem_size, but not larger than kelem_size
2324 */
2325 error = dcopyout(l, kbuf, dp,
2326 min(kelem_size, elem_size));
2327 mutex_enter(proc_lock);
2328 if (error) {
2329 goto bah;
2330 }
2331 dp += elem_size;
2332 buflen -= elem_size;
2333 } else {
2334 mutex_exit(p->p_lock);
2335 }
2336 needed += elem_size;
2337
2338 /*
2339 * Release reference to process.
2340 */
2341 if (zombie) {
2342 next = LIST_NEXT(marker, p_list);
2343 LIST_REMOVE(marker, p_list);
2344 } else {
2345 rw_exit(&p->p_reflock);
2346 }
2347 }
2348 mutex_exit(proc_lock);
2349
2350 if (where != NULL) {
2351 *oldlenp = dp - where;
2352 if (needed > *oldlenp) {
2353 error = ENOMEM;
2354 goto out;
2355 }
2356 } else {
2357 needed += KERN_PROCSLOP;
2358 *oldlenp = needed;
2359 }
2360 if (kbuf)
2361 kmem_free(kbuf, sizeof(*kbuf));
2362 if (marker)
2363 kmem_free(marker, sizeof(*marker));
2364 sysctl_relock();
2365 return 0;
2366 bah:
2367 if (zombie)
2368 LIST_REMOVE(marker, p_list);
2369 else
2370 rw_exit(&p->p_reflock);
2371 cleanup:
2372 mutex_exit(proc_lock);
2373 out:
2374 if (kbuf)
2375 kmem_free(kbuf, sizeof(*kbuf));
2376 if (marker)
2377 kmem_free(marker, sizeof(*marker));
2378 sysctl_relock();
2379 return error;
2380 }
2381
2382 /*
2383 * sysctl helper routine for kern.proc_args pseudo-subtree.
2384 */
2385 static int
2386 sysctl_kern_proc_args(SYSCTLFN_ARGS)
2387 {
2388 struct ps_strings pss;
2389 struct proc *p;
2390 size_t len, i;
2391 struct uio auio;
2392 struct iovec aiov;
2393 pid_t pid;
2394 int nargv, type, error, argvlen;
2395 char *arg;
2396 char **argv = NULL;
2397 char *tmp;
2398 struct vmspace *vmspace;
2399 vaddr_t psstr_addr;
2400 vaddr_t offsetn;
2401 vaddr_t offsetv;
2402
2403 if (namelen == 1 && name[0] == CTL_QUERY)
2404 return (sysctl_query(SYSCTLFN_CALL(rnode)));
2405
2406 if (newp != NULL || namelen != 2)
2407 return (EINVAL);
2408 pid = name[0];
2409 type = name[1];
2410 argv = NULL;
2411 argvlen = 0;
2412
2413 switch (type) {
2414 case KERN_PROC_ARGV:
2415 case KERN_PROC_NARGV:
2416 case KERN_PROC_ENV:
2417 case KERN_PROC_NENV:
2418 /* ok */
2419 break;
2420 default:
2421 return (EINVAL);
2422 }
2423
2424 sysctl_unlock();
2425
2426 /* check pid */
2427 mutex_enter(proc_lock);
2428 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) {
2429 error = EINVAL;
2430 goto out_locked;
2431 }
2432 mutex_enter(p->p_lock);
2433
2434 /* Check permission. */
2435 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV)
2436 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE,
2437 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ARGS), NULL, NULL);
2438 else if (type == KERN_PROC_ENV || type == KERN_PROC_NENV)
2439 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE,
2440 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENV), NULL, NULL);
2441 else
2442 error = EINVAL; /* XXXGCC */
2443 if (error) {
2444 mutex_exit(p->p_lock);
2445 goto out_locked;
2446 }
2447
2448 if (oldp == NULL) {
2449 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV)
2450 *oldlenp = sizeof (int);
2451 else
2452 *oldlenp = ARG_MAX; /* XXX XXX XXX */
2453 error = 0;
2454 mutex_exit(p->p_lock);
2455 goto out_locked;
2456 }
2457
2458 /*
2459 * Zombies don't have a stack, so we can't read their psstrings.
2460 * System processes also don't have a user stack.
2461 */
2462 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) {
2463 error = EINVAL;
2464 mutex_exit(p->p_lock);
2465 goto out_locked;
2466 }
2467
2468 /*
2469 * Lock the process down in memory.
2470 */
2471 psstr_addr = (vaddr_t)p->p_psstr;
2472 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) {
2473 offsetn = p->p_psnargv;
2474 offsetv = p->p_psargv;
2475 } else {
2476 offsetn = p->p_psnenv;
2477 offsetv = p->p_psenv;
2478 }
2479 vmspace = p->p_vmspace;
2480 uvmspace_addref(vmspace);
2481 mutex_exit(p->p_lock);
2482 mutex_exit(proc_lock);
2483
2484 /*
2485 * Allocate a temporary buffer to hold the arguments.
2486 */
2487 arg = kmem_alloc(PAGE_SIZE, KM_SLEEP);
2488
2489 /*
2490 * Read in the ps_strings structure.
2491 */
2492 aiov.iov_base = &pss;
2493 aiov.iov_len = sizeof(pss);
2494 auio.uio_iov = &aiov;
2495 auio.uio_iovcnt = 1;
2496 auio.uio_offset = psstr_addr;
2497 auio.uio_resid = sizeof(pss);
2498 auio.uio_rw = UIO_READ;
2499 UIO_SETUP_SYSSPACE(&auio);
2500 error = uvm_io(&vmspace->vm_map, &auio);
2501 if (error)
2502 goto done;
2503
2504 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv));
2505 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) {
2506 error = dcopyout(l, &nargv, oldp, sizeof(nargv));
2507 *oldlenp = sizeof(nargv);
2508 goto done;
2509 }
2510 /*
2511 * Now read the address of the argument vector.
2512 */
2513 switch (type) {
2514 case KERN_PROC_ARGV:
2515 /* FALLTHROUGH */
2516 case KERN_PROC_ENV:
2517 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp));
2518 break;
2519 default:
2520 error = EINVAL;
2521 goto done;
2522 }
2523
2524 #ifdef COMPAT_NETBSD32
2525 if (p->p_flag & PK_32)
2526 len = sizeof(netbsd32_charp) * nargv;
2527 else
2528 #endif
2529 len = sizeof(char *) * nargv;
2530
2531 if (nargv < 0 || len > ARG_MAX || len < (size_t)nargv) {
2532 error = EINVAL;
2533 goto done;
2534 }
2535
2536 if ((argvlen = len) != 0)
2537 argv = kmem_alloc(len, KM_SLEEP);
2538
2539 aiov.iov_base = argv;
2540 aiov.iov_len = len;
2541 auio.uio_iov = &aiov;
2542 auio.uio_iovcnt = 1;
2543 auio.uio_offset = (off_t)(unsigned long)tmp;
2544 auio.uio_resid = len;
2545 auio.uio_rw = UIO_READ;
2546 UIO_SETUP_SYSSPACE(&auio);
2547 error = uvm_io(&vmspace->vm_map, &auio);
2548 if (error)
2549 goto done;
2550
2551 /*
2552 * Now copy each string.
2553 */
2554 len = 0; /* bytes written to user buffer */
2555 for (i = 0; i < nargv; i++) {
2556 int finished = 0;
2557 vaddr_t base;
2558 size_t xlen;
2559 int j;
2560
2561 #ifdef COMPAT_NETBSD32
2562 if (p->p_flag & PK_32) {
2563 netbsd32_charp *argv32;
2564
2565 argv32 = (netbsd32_charp *)argv;
2566 base = (vaddr_t)NETBSD32PTR64(argv32[i]);
2567 } else
2568 #endif
2569 base = (vaddr_t)argv[i];
2570
2571 /*
2572 * The program has messed around with its arguments,
2573 * possibly deleting some, and replacing them with
2574 * NULL's. Treat this as the last argument and not
2575 * a failure.
2576 */
2577 if (base == 0)
2578 break;
2579
2580 while (!finished) {
2581 xlen = PAGE_SIZE - (base & PAGE_MASK);
2582
2583 aiov.iov_base = arg;
2584 aiov.iov_len = PAGE_SIZE;
2585 auio.uio_iov = &aiov;
2586 auio.uio_iovcnt = 1;
2587 auio.uio_offset = base;
2588 auio.uio_resid = xlen;
2589 auio.uio_rw = UIO_READ;
2590 UIO_SETUP_SYSSPACE(&auio);
2591 error = uvm_io(&vmspace->vm_map, &auio);
2592 if (error)
2593 goto done;
2594
2595 /* Look for the end of the string */
2596 for (j = 0; j < xlen; j++) {
2597 if (arg[j] == '\0') {
2598 xlen = j + 1;
2599 finished = 1;
2600 break;
2601 }
2602 }
2603
2604 /* Check for user buffer overflow */
2605 if (len + xlen > *oldlenp) {
2606 finished = 1;
2607 if (len > *oldlenp)
2608 xlen = 0;
2609 else
2610 xlen = *oldlenp - len;
2611 }
2612
2613 /* Copyout the page */
2614 error = dcopyout(l, arg, (char *)oldp + len, xlen);
2615 if (error)
2616 goto done;
2617
2618 len += xlen;
2619 base += xlen;
2620 }
2621 }
2622 *oldlenp = len;
2623
2624 done:
2625 if (argvlen != 0)
2626 kmem_free(argv, argvlen);
2627 uvmspace_free(vmspace);
2628 kmem_free(arg, PAGE_SIZE);
2629 sysctl_relock();
2630 return error;
2631
2632 out_locked:
2633 mutex_exit(proc_lock);
2634 sysctl_relock();
2635 return error;
2636 }
2637
2638 static int
2639 sysctl_security_setidcore(SYSCTLFN_ARGS)
2640 {
2641 int newsize, error;
2642 struct sysctlnode node;
2643
2644 node = *rnode;
2645 node.sysctl_data = &newsize;
2646 newsize = *(int *)rnode->sysctl_data;
2647 error = sysctl_lookup(SYSCTLFN_CALL(&node));
2648 if (error || newp == NULL)
2649 return error;
2650
2651 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE,
2652 0, NULL, NULL, NULL))
2653 return (EPERM);
2654
2655 *(int *)rnode->sysctl_data = newsize;
2656
2657 return 0;
2658 }
2659
2660 static int
2661 sysctl_security_setidcorename(SYSCTLFN_ARGS)
2662 {
2663 int error;
2664 char *newsetidcorename;
2665 struct sysctlnode node;
2666
2667 newsetidcorename = PNBUF_GET();
2668 node = *rnode;
2669 node.sysctl_data = newsetidcorename;
2670 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN);
2671 error = sysctl_lookup(SYSCTLFN_CALL(&node));
2672 if (error || newp == NULL) {
2673 goto out;
2674 }
2675 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE,
2676 0, NULL, NULL, NULL)) {
2677 error = EPERM;
2678 goto out;
2679 }
2680 if (strlen(newsetidcorename) == 0) {
2681 error = EINVAL;
2682 goto out;
2683 }
2684 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN);
2685 out:
2686 PNBUF_PUT(newsetidcorename);
2687 return error;
2688 }
2689
2690 /*
2691 * sysctl helper routine for kern.cp_id node. Maps cpus to their
2692 * cpuids.
2693 */
2694 static int
2695 sysctl_kern_cpid(SYSCTLFN_ARGS)
2696 {
2697 struct sysctlnode node = *rnode;
2698 uint64_t *cp_id = NULL;
2699 int error, n = ncpu;
2700 struct cpu_info *ci;
2701 CPU_INFO_ITERATOR cii;
2702
2703 /*
2704 * Here you may either retrieve a single cpu id or the whole
2705 * set. The size you get back when probing depends on what
2706 * you ask for.
2707 */
2708 switch (namelen) {
2709 case 0:
2710 node.sysctl_size = n * sizeof(uint64_t);
2711 n = -2; /* ALL */
2712 break;
2713 case 1:
2714 if (name[0] < 0 || name[0] >= n)
2715 return (ENOENT); /* ENOSUCHPROCESSOR */
2716 node.sysctl_size = sizeof(uint64_t);
2717 n = name[0];
2718 /*
2719 * adjust these so that sysctl_lookup() will be happy
2720 */
2721 name++;
2722 namelen--;
2723 break;
2724 default:
2725 return (EINVAL);
2726 }
2727
2728 cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP);
2729 if (cp_id == NULL)
2730 return (ENOMEM);
2731 node.sysctl_data = cp_id;
2732 memset(cp_id, 0, node.sysctl_size);
2733
2734 for (CPU_INFO_FOREACH(cii, ci)) {
2735 if (n <= 0)
2736 cp_id[0] = cpu_index(ci);
2737 /*
2738 * if a specific processor was requested and we just
2739 * did it, we're done here
2740 */
2741 if (n == 0)
2742 break;
2743 /*
2744 * if doing "all", skip to next cp_id slot for next processor
2745 */
2746 if (n == -2)
2747 cp_id++;
2748 /*
2749 * if we're doing a specific processor, we're one
2750 * processor closer
2751 */
2752 if (n > 0)
2753 n--;
2754 }
2755
2756 error = sysctl_lookup(SYSCTLFN_CALL(&node));
2757 kmem_free(node.sysctl_data, node.sysctl_size);
2758 return (error);
2759 }
2760
2761 /*
2762 * sysctl helper routine for hw.usermem and hw.usermem64. Values are
2763 * calculate on the fly taking into account integer overflow and the
2764 * current wired count.
2765 */
2766 static int
2767 sysctl_hw_usermem(SYSCTLFN_ARGS)
2768 {
2769 u_int ui;
2770 u_quad_t uq;
2771 struct sysctlnode node;
2772
2773 node = *rnode;
2774 switch (rnode->sysctl_num) {
2775 case HW_USERMEM:
2776 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE))
2777 ui = UINT_MAX;
2778 else
2779 ui *= PAGE_SIZE;
2780 node.sysctl_data = &ui;
2781 break;
2782 case HW_USERMEM64:
2783 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE;
2784 node.sysctl_data = &uq;
2785 break;
2786 default:
2787 return (EINVAL);
2788 }
2789
2790 return (sysctl_lookup(SYSCTLFN_CALL(&node)));
2791 }
2792
2793 /*
2794 * sysctl helper routine for kern.cnmagic node. Pulls the old value
2795 * out, encoded, and stuffs the new value in for decoding.
2796 */
2797 static int
2798 sysctl_hw_cnmagic(SYSCTLFN_ARGS)
2799 {
2800 char magic[CNS_LEN];
2801 int error;
2802 struct sysctlnode node;
2803
2804 if (oldp)
2805 cn_get_magic(magic, CNS_LEN);
2806 node = *rnode;
2807 node.sysctl_data = &magic[0];
2808 error = sysctl_lookup(SYSCTLFN_CALL(&node));
2809 if (error || newp == NULL)
2810 return (error);
2811
2812 return (cn_set_magic(magic));
2813 }
2814
2815 /*
2816 * ********************************************************************
2817 * section 3: public helper routines that are used for more than one
2818 * node
2819 * ********************************************************************
2820 */
2821
2822 /*
2823 * sysctl helper routine for the kern.root_device node and some ports'
2824 * machdep.root_device nodes.
2825 */
2826 int
2827 sysctl_root_device(SYSCTLFN_ARGS)
2828 {
2829 struct sysctlnode node;
2830
2831 node = *rnode;
2832 node.sysctl_data = root_device->dv_xname;
2833 node.sysctl_size = strlen(device_xname(root_device)) + 1;
2834 return (sysctl_lookup(SYSCTLFN_CALL(&node)));
2835 }
2836
2837 /*
2838 * sysctl helper routine for kern.consdev, dependent on the current
2839 * state of the console. Also used for machdep.console_device on some
2840 * ports.
2841 */
2842 int
2843 sysctl_consdev(SYSCTLFN_ARGS)
2844 {
2845 dev_t consdev;
2846 struct sysctlnode node;
2847
2848 if (cn_tab != NULL)
2849 consdev = cn_tab->cn_dev;
2850 else
2851 consdev = NODEV;
2852 node = *rnode;
2853 node.sysctl_data = &consdev;
2854 node.sysctl_size = sizeof(consdev);
2855 return (sysctl_lookup(SYSCTLFN_CALL(&node)));
2856 }
2857
2858 /*
2859 * ********************************************************************
2860 * section 4: support for some helpers
2861 * ********************************************************************
2862 */
2863 /*
2864 * Find the most ``active'' lwp of a process and return it for ps display
2865 * purposes
2866 */
2867 static struct lwp *
2868 proc_active_lwp(struct proc *p)
2869 {
2870 static const int ostat[] = {
2871 0,
2872 2, /* LSIDL */
2873 6, /* LSRUN */
2874 5, /* LSSLEEP */
2875 4, /* LSSTOP */
2876 0, /* LSZOMB */
2877 1, /* LSDEAD */
2878 7, /* LSONPROC */
2879 3 /* LSSUSPENDED */
2880 };
2881
2882 struct lwp *l, *lp = NULL;
2883 LIST_FOREACH(l, &p->p_lwps, l_sibling) {
2884 KASSERT(l->l_stat >= 0 && l->l_stat < __arraycount(ostat));
2885 if (lp == NULL ||
2886 ostat[l->l_stat] > ostat[lp->l_stat] ||
2887 (ostat[l->l_stat] == ostat[lp->l_stat] &&
2888 l->l_cpticks > lp->l_cpticks)) {
2889 lp = l;
2890 continue;
2891 }
2892 }
2893 return lp;
2894 }
2895
2896
2897 /*
2898 * Fill in a kinfo_proc2 structure for the specified process.
2899 */
2900 static void
2901 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki, bool zombie)
2902 {
2903 struct tty *tp;
2904 struct lwp *l, *l2;
2905 struct timeval ut, st, rt;
2906 sigset_t ss1, ss2;
2907 struct rusage ru;
2908 struct vmspace *vm;
2909
2910 KASSERT(mutex_owned(proc_lock));
2911 KASSERT(mutex_owned(p->p_lock));
2912
2913 sigemptyset(&ss1);
2914 sigemptyset(&ss2);
2915 memset(ki, 0, sizeof(*ki));
2916
2917 ki->p_paddr = PTRTOUINT64(p);
2918 ki->p_fd = PTRTOUINT64(p->p_fd);
2919 ki->p_cwdi = PTRTOUINT64(p->p_cwdi);
2920 ki->p_stats = PTRTOUINT64(p->p_stats);
2921 ki->p_limit = PTRTOUINT64(p->p_limit);
2922 ki->p_vmspace = PTRTOUINT64(p->p_vmspace);
2923 ki->p_sigacts = PTRTOUINT64(p->p_sigacts);
2924 ki->p_sess = PTRTOUINT64(p->p_session);
2925 ki->p_tsess = 0; /* may be changed if controlling tty below */
2926 ki->p_ru = PTRTOUINT64(&p->p_stats->p_ru);
2927 ki->p_eflag = 0;
2928 ki->p_exitsig = p->p_exitsig;
2929 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag);
2930 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag);
2931 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag);
2932 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag);
2933 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag);
2934 ki->p_pid = p->p_pid;
2935 if (p->p_pptr)
2936 ki->p_ppid = p->p_pptr->p_pid;
2937 else
2938 ki->p_ppid = 0;
2939 ki->p_uid = kauth_cred_geteuid(p->p_cred);
2940 ki->p_ruid = kauth_cred_getuid(p->p_cred);
2941 ki->p_gid = kauth_cred_getegid(p->p_cred);
2942 ki->p_rgid = kauth_cred_getgid(p->p_cred);
2943 ki->p_svuid = kauth_cred_getsvuid(p->p_cred);
2944 ki->p_svgid = kauth_cred_getsvgid(p->p_cred);
2945 ki->p_ngroups = kauth_cred_ngroups(p->p_cred);
2946 kauth_cred_getgroups(p->p_cred, ki->p_groups,
2947 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0])),
2948 UIO_SYSSPACE);
2949
2950 ki->p_uticks = p->p_uticks;
2951 ki->p_sticks = p->p_sticks;
2952 ki->p_iticks = p->p_iticks;
2953 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */
2954 ki->p_tracep = PTRTOUINT64(p->p_tracep);
2955 ki->p_traceflag = p->p_traceflag;
2956
2957 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t));
2958 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t));
2959
2960 ki->p_cpticks = 0;
2961 ki->p_pctcpu = p->p_pctcpu;
2962 ki->p_estcpu = 0;
2963 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */
2964 ki->p_realstat = p->p_stat;
2965 ki->p_nice = p->p_nice;
2966 ki->p_xstat = p->p_xstat;
2967 ki->p_acflag = p->p_acflag;
2968
2969 strncpy(ki->p_comm, p->p_comm,
2970 min(sizeof(ki->p_comm), sizeof(p->p_comm)));
2971 strncpy(ki->p_ename, p->p_emul->e_name, sizeof(ki->p_ename));
2972
2973 ki->p_nlwps = p->p_nlwps;
2974 ki->p_realflag = ki->p_flag;
2975
2976 if (p->p_stat != SIDL && !P_ZOMBIE(p) && !zombie) {
2977 vm = p->p_vmspace;
2978 ki->p_vm_rssize = vm_resident_count(vm);
2979 ki->p_vm_tsize = vm->vm_tsize;
2980 ki->p_vm_dsize = vm->vm_dsize;
2981 ki->p_vm_ssize = vm->vm_ssize;
2982 ki->p_vm_vsize = vm->vm_map.size;
2983 /*
2984 * Since the stack is initially mapped mostly with
2985 * PROT_NONE and grown as needed, adjust the "mapped size"
2986 * to skip the unused stack portion.
2987 */
2988 ki->p_vm_msize =
2989 atop(vm->vm_map.size) - vm->vm_issize + vm->vm_ssize;
2990
2991 /* Pick the primary (first) LWP */
2992 l = proc_active_lwp(p);
2993 KASSERT(l != NULL);
2994 lwp_lock(l);
2995 ki->p_nrlwps = p->p_nrlwps;
2996 ki->p_forw = 0;
2997 ki->p_back = 0;
2998 ki->p_addr = PTRTOUINT64(l->l_addr);
2999 ki->p_stat = l->l_stat;
3000 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag);
3001 ki->p_swtime = l->l_swtime;
3002 ki->p_slptime = l->l_slptime;
3003 if (l->l_stat == LSONPROC)
3004 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags;
3005 else
3006 ki->p_schedflags = 0;
3007 ki->p_holdcnt = l->l_holdcnt;
3008 ki->p_priority = lwp_eprio(l);
3009 ki->p_usrpri = l->l_priority;
3010 if (l->l_wchan)
3011 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg));
3012 ki->p_wchan = PTRTOUINT64(l->l_wchan);
3013 ki->p_cpuid = cpu_index(l->l_cpu);
3014 lwp_unlock(l);
3015 LIST_FOREACH(l, &p->p_lwps, l_sibling) {
3016 /* This is hardly correct, but... */
3017 sigplusset(&l->l_sigpend.sp_set, &ss1);
3018 sigplusset(&l->l_sigmask, &ss2);
3019 ki->p_cpticks += l->l_cpticks;
3020 ki->p_pctcpu += l->l_pctcpu;
3021 ki->p_estcpu += l->l_estcpu;
3022 }
3023 }
3024 sigplusset(&p->p_sigpend.sp_set, &ss2);
3025 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t));
3026 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t));
3027
3028 if (p->p_session != NULL) {
3029 ki->p_sid = p->p_session->s_sid;
3030 ki->p__pgid = p->p_pgrp->pg_id;
3031 if (p->p_session->s_ttyvp)
3032 ki->p_eflag |= EPROC_CTTY;
3033 if (SESS_LEADER(p))
3034 ki->p_eflag |= EPROC_SLEADER;
3035 strncpy(ki->p_login, p->p_session->s_login,
3036 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login));
3037 ki->p_jobc = p->p_pgrp->pg_jobc;
3038 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) {
3039 ki->p_tdev = tp->t_dev;
3040 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID;
3041 ki->p_tsess = PTRTOUINT64(tp->t_session);
3042 } else {
3043 ki->p_tdev = NODEV;
3044 }
3045 }
3046
3047 if (!P_ZOMBIE(p) && !zombie) {
3048 ki->p_uvalid = 1;
3049 ki->p_ustart_sec = p->p_stats->p_start.tv_sec;
3050 ki->p_ustart_usec = p->p_stats->p_start.tv_usec;
3051
3052 calcru(p, &ut, &st, NULL, &rt);
3053 ki->p_rtime_sec = rt.tv_sec;
3054 ki->p_rtime_usec = rt.tv_usec;
3055 ki->p_uutime_sec = ut.tv_sec;
3056 ki->p_uutime_usec = ut.tv_usec;
3057 ki->p_ustime_sec = st.tv_sec;
3058 ki->p_ustime_usec = st.tv_usec;
3059
3060 memcpy(&ru, &p->p_stats->p_ru, sizeof(ru));
3061 ki->p_uru_nvcsw = 0;
3062 ki->p_uru_nivcsw = 0;
3063 LIST_FOREACH(l2, &p->p_lwps, l_sibling) {
3064 ki->p_uru_nvcsw += (l2->l_ncsw - l2->l_nivcsw);
3065 ki->p_uru_nivcsw += l2->l_nivcsw;
3066 ruadd(&ru, &l2->l_ru);
3067 }
3068 ki->p_uru_maxrss = ru.ru_maxrss;
3069 ki->p_uru_ixrss = ru.ru_ixrss;
3070 ki->p_uru_idrss = ru.ru_idrss;
3071 ki->p_uru_isrss = ru.ru_isrss;
3072 ki->p_uru_minflt = ru.ru_minflt;
3073 ki->p_uru_majflt = ru.ru_majflt;
3074 ki->p_uru_nswap = ru.ru_nswap;
3075 ki->p_uru_inblock = ru.ru_inblock;
3076 ki->p_uru_oublock = ru.ru_oublock;
3077 ki->p_uru_msgsnd = ru.ru_msgsnd;
3078 ki->p_uru_msgrcv = ru.ru_msgrcv;
3079 ki->p_uru_nsignals = ru.ru_nsignals;
3080
3081 timeradd(&p->p_stats->p_cru.ru_utime,
3082 &p->p_stats->p_cru.ru_stime, &ut);
3083 ki->p_uctime_sec = ut.tv_sec;
3084 ki->p_uctime_usec = ut.tv_usec;
3085 }
3086 }
3087
3088 /*
3089 * Fill in a kinfo_lwp structure for the specified lwp.
3090 */
3091 static void
3092 fill_lwp(struct lwp *l, struct kinfo_lwp *kl)
3093 {
3094 struct proc *p = l->l_proc;
3095 struct timeval tv;
3096
3097 KASSERT(lwp_locked(l, NULL));
3098
3099 kl->l_forw = 0;
3100 kl->l_back = 0;
3101 kl->l_laddr = PTRTOUINT64(l);
3102 kl->l_addr = PTRTOUINT64(l->l_addr);
3103 kl->l_stat = l->l_stat;
3104 kl->l_lid = l->l_lid;
3105 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag);
3106 kl->l_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag);
3107
3108 kl->l_swtime = l->l_swtime;
3109 kl->l_slptime = l->l_slptime;
3110 if (l->l_stat == LSONPROC)
3111 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags;
3112 else
3113 kl->l_schedflags = 0;
3114 kl->l_holdcnt = l->l_holdcnt;
3115 kl->l_priority = lwp_eprio(l);
3116 kl->l_usrpri = l->l_priority;
3117 if (l->l_wchan)
3118 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg));
3119 kl->l_wchan = PTRTOUINT64(l->l_wchan);
3120 kl->l_cpuid = cpu_index(l->l_cpu);
3121 bintime2timeval(&l->l_rtime, &tv);
3122 kl->l_rtime_sec = tv.tv_sec;
3123 kl->l_rtime_usec = tv.tv_usec;
3124 kl->l_cpticks = l->l_cpticks;
3125 kl->l_pctcpu = l->l_pctcpu;
3126 kl->l_pid = p->p_pid;
3127 if (l->l_name == NULL)
3128 kl->l_name[0] = '\0';
3129 else
3130 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name));
3131 }
3132
3133 /*
3134 * Fill in an eproc structure for the specified process.
3135 */
3136 void
3137 fill_eproc(struct proc *p, struct eproc *ep, bool zombie)
3138 {
3139 struct tty *tp;
3140 struct lwp *l;
3141
3142 KASSERT(mutex_owned(proc_lock));
3143 KASSERT(mutex_owned(p->p_lock));
3144
3145 memset(ep, 0, sizeof(*ep));
3146
3147 ep->e_paddr = p;
3148 ep->e_sess = p->p_session;
3149 if (p->p_cred) {
3150 kauth_cred_topcred(p->p_cred, &ep->e_pcred);
3151 kauth_cred_toucred(p->p_cred, &ep->e_ucred);
3152 }
3153 if (p->p_stat != SIDL && !P_ZOMBIE(p) && !zombie) {
3154 struct vmspace *vm = p->p_vmspace;
3155
3156 ep->e_vm.vm_rssize = vm_resident_count(vm);
3157 ep->e_vm.vm_tsize = vm->vm_tsize;
3158 ep->e_vm.vm_dsize = vm->vm_dsize;
3159 ep->e_vm.vm_ssize = vm->vm_ssize;
3160 ep->e_vm.vm_map.size = vm->vm_map.size;
3161
3162 /* Pick the primary (first) LWP */
3163 l = proc_active_lwp(p);
3164 KASSERT(l != NULL);
3165 lwp_lock(l);
3166 if (l->l_wchan)
3167 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN);
3168 lwp_unlock(l);
3169 }
3170 if (p->p_pptr)
3171 ep->e_ppid = p->p_pptr->p_pid;
3172 if (p->p_pgrp && p->p_session) {
3173 ep->e_pgid = p->p_pgrp->pg_id;
3174 ep->e_jobc = p->p_pgrp->pg_jobc;
3175 ep->e_sid = p->p_session->s_sid;
3176 if ((p->p_lflag & PL_CONTROLT) &&
3177 (tp = ep->e_sess->s_ttyp)) {
3178 ep->e_tdev = tp->t_dev;
3179 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID;
3180 ep->e_tsess = tp->t_session;
3181 } else
3182 ep->e_tdev = NODEV;
3183 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0;
3184 if (SESS_LEADER(p))
3185 ep->e_flag |= EPROC_SLEADER;
3186 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME);
3187 }
3188 ep->e_xsize = ep->e_xrssize = 0;
3189 ep->e_xccount = ep->e_xswrss = 0;
3190 }
3191
3192 u_int
3193 sysctl_map_flags(const u_int *map, u_int word)
3194 {
3195 u_int rv;
3196
3197 for (rv = 0; *map != 0; map += 2)
3198 if ((word & map[0]) != 0)
3199 rv |= map[1];
3200
3201 return rv;
3202 }
Cache object: 0acf27c1eb2fc29c35ddf07fc7b4afbe
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