1 | /* $NetBSD: init_sysctl.c,v 1.211 2016/05/31 05:44:19 pgoyette Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2003, 2007, 2008, 2009 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 1.211 2016/05/31 05:44:19 pgoyette Exp $" ); |
34 | |
35 | #include "opt_sysv.h" |
36 | #include "opt_compat_netbsd.h" |
37 | #include "opt_modular.h" |
38 | #include "pty.h" |
39 | |
40 | #include <sys/types.h> |
41 | #include <sys/param.h> |
42 | #include <sys/sysctl.h> |
43 | #include <sys/cpu.h> |
44 | #include <sys/errno.h> |
45 | #include <sys/systm.h> |
46 | #include <sys/kernel.h> |
47 | #include <sys/unistd.h> |
48 | #include <sys/disklabel.h> |
49 | #include <sys/cprng.h> |
50 | #include <sys/vnode.h> |
51 | #include <sys/mount.h> |
52 | #include <sys/namei.h> |
53 | #include <dev/cons.h> |
54 | #include <sys/socketvar.h> |
55 | #include <sys/file.h> |
56 | #include <sys/filedesc.h> |
57 | #include <sys/tty.h> |
58 | #include <sys/kmem.h> |
59 | #include <sys/reboot.h> |
60 | #include <sys/resource.h> |
61 | #include <sys/resourcevar.h> |
62 | #include <sys/exec.h> |
63 | #include <sys/conf.h> |
64 | #include <sys/device.h> |
65 | #include <sys/stat.h> |
66 | #include <sys/kauth.h> |
67 | #include <sys/ktrace.h> |
68 | |
69 | #include <sys/cpu.h> |
70 | |
71 | int security_setidcore_dump; |
72 | char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core" ; |
73 | uid_t security_setidcore_owner = 0; |
74 | gid_t security_setidcore_group = 0; |
75 | mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); |
76 | |
77 | /* |
78 | * Current status of SysV IPC capability. Initially, these are |
79 | * 0 if the capability is not built-in to the kernel, but can |
80 | * be updated if the appropriate kernel module is (auto)loaded. |
81 | */ |
82 | |
83 | int kern_has_sysvmsg = 0; |
84 | int kern_has_sysvshm = 0; |
85 | int kern_has_sysvsem = 0; |
86 | |
87 | static const u_int sysctl_lwpprflagmap[] = { |
88 | LPR_DETACHED, L_DETACHED, |
89 | 0 |
90 | }; |
91 | |
92 | /* |
93 | * try over estimating by 5 procs/lwps |
94 | */ |
95 | #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) |
96 | |
97 | static int dcopyout(struct lwp *, const void *, void *, size_t); |
98 | |
99 | static int |
100 | dcopyout(struct lwp *l, const void *kaddr, void *uaddr, size_t len) |
101 | { |
102 | int error; |
103 | |
104 | error = copyout(kaddr, uaddr, len); |
105 | ktrmibio(-1, UIO_READ, uaddr, len, error); |
106 | |
107 | return error; |
108 | } |
109 | |
110 | #ifdef DIAGNOSTIC |
111 | static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); |
112 | #endif |
113 | static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); |
114 | static int sysctl_kern_messages(SYSCTLFN_PROTO); |
115 | static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); |
116 | static int sysctl_kern_maxproc(SYSCTLFN_PROTO); |
117 | static int sysctl_kern_hostid(SYSCTLFN_PROTO); |
118 | static int sysctl_kern_defcorename(SYSCTLFN_PROTO); |
119 | static int sysctl_kern_cptime(SYSCTLFN_PROTO); |
120 | #if NPTY > 0 |
121 | static int sysctl_kern_maxptys(SYSCTLFN_PROTO); |
122 | #endif /* NPTY > 0 */ |
123 | static int sysctl_kern_lwp(SYSCTLFN_PROTO); |
124 | static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); |
125 | static int sysctl_kern_root_partition(SYSCTLFN_PROTO); |
126 | static int sysctl_kern_drivers(SYSCTLFN_PROTO); |
127 | static int sysctl_security_setidcore(SYSCTLFN_PROTO); |
128 | static int sysctl_security_setidcorename(SYSCTLFN_PROTO); |
129 | static int sysctl_kern_cpid(SYSCTLFN_PROTO); |
130 | static int sysctl_hw_usermem(SYSCTLFN_PROTO); |
131 | static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); |
132 | |
133 | static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); |
134 | |
135 | /* |
136 | * ******************************************************************** |
137 | * section 1: setup routines |
138 | * ******************************************************************** |
139 | * These functions are stuffed into a link set for sysctl setup |
140 | * functions. They're never called or referenced from anywhere else. |
141 | * ******************************************************************** |
142 | */ |
143 | |
144 | /* |
145 | * this setup routine is a replacement for kern_sysctl() |
146 | */ |
147 | SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup" ) |
148 | { |
149 | extern int kern_logsigexit; /* defined in kern/kern_sig.c */ |
150 | extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ |
151 | extern int dumponpanic; /* defined in kern/subr_prf.c */ |
152 | const struct sysctlnode *rnode; |
153 | |
154 | sysctl_createv(clog, 0, NULL, NULL, |
155 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
156 | CTLTYPE_INT, "maxvnodes" , |
157 | SYSCTL_DESCR("Maximum number of vnodes" ), |
158 | sysctl_kern_maxvnodes, 0, NULL, 0, |
159 | CTL_KERN, KERN_MAXVNODES, CTL_EOL); |
160 | sysctl_createv(clog, 0, NULL, NULL, |
161 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
162 | CTLTYPE_INT, "maxproc" , |
163 | SYSCTL_DESCR("Maximum number of simultaneous processes" ), |
164 | sysctl_kern_maxproc, 0, NULL, 0, |
165 | CTL_KERN, KERN_MAXPROC, CTL_EOL); |
166 | sysctl_createv(clog, 0, NULL, NULL, |
167 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
168 | CTLTYPE_INT, "maxfiles" , |
169 | SYSCTL_DESCR("Maximum number of open files" ), |
170 | NULL, 0, &maxfiles, 0, |
171 | CTL_KERN, KERN_MAXFILES, CTL_EOL); |
172 | sysctl_createv(clog, 0, NULL, NULL, |
173 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
174 | CTLTYPE_INT, "argmax" , |
175 | SYSCTL_DESCR("Maximum number of bytes of arguments to " |
176 | "execve(2)" ), |
177 | NULL, ARG_MAX, NULL, 0, |
178 | CTL_KERN, KERN_ARGMAX, CTL_EOL); |
179 | sysctl_createv(clog, 0, NULL, NULL, |
180 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, |
181 | CTLTYPE_INT, "hostid" , |
182 | SYSCTL_DESCR("System host ID number" ), |
183 | sysctl_kern_hostid, 0, NULL, 0, |
184 | CTL_KERN, KERN_HOSTID, CTL_EOL); |
185 | sysctl_createv(clog, 0, NULL, NULL, |
186 | CTLFLAG_PERMANENT, |
187 | CTLTYPE_STRUCT, "vnode" , |
188 | SYSCTL_DESCR("System vnode table" ), |
189 | sysctl_kern_vnode, 0, NULL, 0, |
190 | CTL_KERN, KERN_VNODE, CTL_EOL); |
191 | #ifndef GPROF |
192 | sysctl_createv(clog, 0, NULL, NULL, |
193 | CTLFLAG_PERMANENT, |
194 | CTLTYPE_NODE, "profiling" , |
195 | SYSCTL_DESCR("Profiling information (not available)" ), |
196 | sysctl_notavail, 0, NULL, 0, |
197 | CTL_KERN, KERN_PROF, CTL_EOL); |
198 | #endif |
199 | sysctl_createv(clog, 0, NULL, NULL, |
200 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
201 | CTLTYPE_INT, "posix1version" , |
202 | SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " |
203 | "with which the operating system attempts " |
204 | "to comply" ), |
205 | NULL, _POSIX_VERSION, NULL, 0, |
206 | CTL_KERN, KERN_POSIX1, CTL_EOL); |
207 | sysctl_createv(clog, 0, NULL, NULL, |
208 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
209 | CTLTYPE_INT, "ngroups" , |
210 | SYSCTL_DESCR("Maximum number of supplemental groups" ), |
211 | NULL, NGROUPS_MAX, NULL, 0, |
212 | CTL_KERN, KERN_NGROUPS, CTL_EOL); |
213 | sysctl_createv(clog, 0, NULL, NULL, |
214 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
215 | CTLTYPE_INT, "job_control" , |
216 | SYSCTL_DESCR("Whether job control is available" ), |
217 | NULL, 1, NULL, 0, |
218 | CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); |
219 | sysctl_createv(clog, 0, NULL, NULL, |
220 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
221 | CTLTYPE_INT, "saved_ids" , |
222 | SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " |
223 | "available" ), NULL, |
224 | #ifdef _POSIX_SAVED_IDS |
225 | 1, |
226 | #else /* _POSIX_SAVED_IDS */ |
227 | 0, |
228 | #endif /* _POSIX_SAVED_IDS */ |
229 | NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); |
230 | sysctl_createv(clog, 0, NULL, NULL, |
231 | CTLFLAG_PERMANENT|CTLFLAG_HEX, |
232 | CTLTYPE_INT, "boothowto" , |
233 | SYSCTL_DESCR("Flags from boot loader" ), |
234 | NULL, 0, &boothowto, sizeof(boothowto), |
235 | CTL_KERN, CTL_CREATE, CTL_EOL); |
236 | sysctl_createv(clog, 0, NULL, NULL, |
237 | CTLFLAG_PERMANENT, |
238 | CTLTYPE_STRUCT, "boottime" , |
239 | SYSCTL_DESCR("System boot time" ), |
240 | NULL, 0, &boottime, sizeof(boottime), |
241 | CTL_KERN, KERN_BOOTTIME, CTL_EOL); |
242 | sysctl_createv(clog, 0, NULL, NULL, |
243 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
244 | CTLTYPE_INT, "maxpartitions" , |
245 | SYSCTL_DESCR("Maximum number of partitions allowed per " |
246 | "disk" ), |
247 | NULL, MAXPARTITIONS, NULL, 0, |
248 | CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); |
249 | sysctl_createv(clog, 0, NULL, NULL, |
250 | CTLFLAG_PERMANENT, |
251 | CTLTYPE_STRUCT, "timex" , NULL, |
252 | sysctl_notavail, 0, NULL, 0, |
253 | CTL_KERN, KERN_TIMEX, CTL_EOL); |
254 | sysctl_createv(clog, 0, NULL, NULL, |
255 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
256 | CTLTYPE_INT, "rtc_offset" , |
257 | SYSCTL_DESCR("Offset of real time clock from UTC in " |
258 | "minutes" ), |
259 | sysctl_kern_rtc_offset, 0, &rtc_offset, 0, |
260 | CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); |
261 | sysctl_createv(clog, 0, NULL, NULL, |
262 | CTLFLAG_PERMANENT, |
263 | CTLTYPE_STRING, "root_device" , |
264 | SYSCTL_DESCR("Name of the root device" ), |
265 | sysctl_root_device, 0, NULL, 0, |
266 | CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); |
267 | sysctl_createv(clog, 0, NULL, NULL, |
268 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
269 | CTLTYPE_INT, "fsync" , |
270 | SYSCTL_DESCR("Whether the POSIX 1003.1b File " |
271 | "Synchronization Option is available on " |
272 | "this system" ), |
273 | NULL, 1, NULL, 0, |
274 | CTL_KERN, KERN_FSYNC, CTL_EOL); |
275 | sysctl_createv(clog, 0, NULL, NULL, |
276 | CTLFLAG_PERMANENT, |
277 | CTLTYPE_NODE, "ipc" , |
278 | SYSCTL_DESCR("SysV IPC options" ), |
279 | NULL, 0, NULL, 0, |
280 | CTL_KERN, KERN_SYSVIPC, CTL_EOL); |
281 | sysctl_createv(clog, 0, NULL, NULL, |
282 | CTLFLAG_PERMANENT|CTLFLAG_READONLY, |
283 | CTLTYPE_INT, "sysvmsg" , |
284 | SYSCTL_DESCR("System V style message support available" ), |
285 | NULL, 0, &kern_has_sysvmsg, sizeof(int), |
286 | CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); |
287 | sysctl_createv(clog, 0, NULL, NULL, |
288 | CTLFLAG_PERMANENT|CTLFLAG_READONLY, |
289 | CTLTYPE_INT, "sysvsem" , |
290 | SYSCTL_DESCR("System V style semaphore support " |
291 | "available" ), |
292 | NULL, 0, &kern_has_sysvsem, sizeof(int), |
293 | CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); |
294 | sysctl_createv(clog, 0, NULL, NULL, |
295 | CTLFLAG_PERMANENT|CTLFLAG_READONLY, |
296 | CTLTYPE_INT, "sysvshm" , |
297 | SYSCTL_DESCR("System V style shared memory support " |
298 | "available" ), |
299 | NULL, 0, &kern_has_sysvshm, sizeof(int), |
300 | CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); |
301 | sysctl_createv(clog, 0, NULL, NULL, |
302 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
303 | CTLTYPE_INT, "synchronized_io" , |
304 | SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " |
305 | "I/O Option is available on this system" ), |
306 | NULL, 1, NULL, 0, |
307 | CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); |
308 | sysctl_createv(clog, 0, NULL, NULL, |
309 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
310 | CTLTYPE_INT, "iov_max" , |
311 | SYSCTL_DESCR("Maximum number of iovec structures per " |
312 | "process" ), |
313 | NULL, IOV_MAX, NULL, 0, |
314 | CTL_KERN, KERN_IOV_MAX, CTL_EOL); |
315 | sysctl_createv(clog, 0, NULL, NULL, |
316 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
317 | CTLTYPE_INT, "mapped_files" , |
318 | SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " |
319 | "Files Option is available on this system" ), |
320 | NULL, 1, NULL, 0, |
321 | CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); |
322 | sysctl_createv(clog, 0, NULL, NULL, |
323 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
324 | CTLTYPE_INT, "memlock" , |
325 | SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " |
326 | "Locking Option is available on this " |
327 | "system" ), |
328 | NULL, 1, NULL, 0, |
329 | CTL_KERN, KERN_MEMLOCK, CTL_EOL); |
330 | sysctl_createv(clog, 0, NULL, NULL, |
331 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
332 | CTLTYPE_INT, "memlock_range" , |
333 | SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " |
334 | "Locking Option is available on this " |
335 | "system" ), |
336 | NULL, 1, NULL, 0, |
337 | CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); |
338 | sysctl_createv(clog, 0, NULL, NULL, |
339 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
340 | CTLTYPE_INT, "memory_protection" , |
341 | SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " |
342 | "Protection Option is available on this " |
343 | "system" ), |
344 | NULL, 1, NULL, 0, |
345 | CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); |
346 | sysctl_createv(clog, 0, NULL, NULL, |
347 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
348 | CTLTYPE_INT, "login_name_max" , |
349 | SYSCTL_DESCR("Maximum login name length" ), |
350 | NULL, LOGIN_NAME_MAX, NULL, 0, |
351 | CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); |
352 | sysctl_createv(clog, 0, NULL, NULL, |
353 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
354 | CTLTYPE_STRING, "defcorename" , |
355 | SYSCTL_DESCR("Default core file name" ), |
356 | sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, |
357 | CTL_KERN, KERN_DEFCORENAME, CTL_EOL); |
358 | sysctl_createv(clog, 0, NULL, NULL, |
359 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
360 | CTLTYPE_INT, "logsigexit" , |
361 | SYSCTL_DESCR("Log process exit when caused by signals" ), |
362 | NULL, 0, &kern_logsigexit, 0, |
363 | CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); |
364 | sysctl_createv(clog, 0, NULL, NULL, |
365 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
366 | CTLTYPE_INT, "fscale" , |
367 | SYSCTL_DESCR("Kernel fixed-point scale factor" ), |
368 | NULL, FSCALE, NULL, 0, |
369 | CTL_KERN, KERN_FSCALE, CTL_EOL); |
370 | sysctl_createv(clog, 0, NULL, NULL, |
371 | CTLFLAG_PERMANENT, |
372 | CTLTYPE_INT, "ccpu" , |
373 | SYSCTL_DESCR("Scheduler exponential decay value" ), |
374 | NULL, 0, &ccpu, 0, |
375 | CTL_KERN, KERN_CCPU, CTL_EOL); |
376 | sysctl_createv(clog, 0, NULL, NULL, |
377 | CTLFLAG_PERMANENT, |
378 | CTLTYPE_STRUCT, "cp_time" , |
379 | SYSCTL_DESCR("Clock ticks spent in different CPU states" ), |
380 | sysctl_kern_cptime, 0, NULL, 0, |
381 | CTL_KERN, KERN_CP_TIME, CTL_EOL); |
382 | sysctl_createv(clog, 0, NULL, NULL, |
383 | CTLFLAG_PERMANENT, |
384 | CTLTYPE_STRUCT, "consdev" , |
385 | SYSCTL_DESCR("Console device" ), |
386 | sysctl_consdev, 0, NULL, sizeof(dev_t), |
387 | CTL_KERN, KERN_CONSDEV, CTL_EOL); |
388 | #if NPTY > 0 |
389 | sysctl_createv(clog, 0, NULL, NULL, |
390 | CTLFLAG_PERMANENT, |
391 | CTLTYPE_INT, "maxptys" , |
392 | SYSCTL_DESCR("Maximum number of pseudo-ttys" ), |
393 | sysctl_kern_maxptys, 0, NULL, 0, |
394 | CTL_KERN, KERN_MAXPTYS, CTL_EOL); |
395 | #endif /* NPTY > 0 */ |
396 | sysctl_createv(clog, 0, NULL, NULL, |
397 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
398 | CTLTYPE_INT, "maxphys" , |
399 | SYSCTL_DESCR("Maximum raw I/O transfer size" ), |
400 | NULL, MAXPHYS, NULL, 0, |
401 | CTL_KERN, KERN_MAXPHYS, CTL_EOL); |
402 | sysctl_createv(clog, 0, NULL, NULL, |
403 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
404 | CTLTYPE_INT, "monotonic_clock" , |
405 | SYSCTL_DESCR("Implementation version of the POSIX " |
406 | "1003.1b Monotonic Clock Option" ), |
407 | /* XXX _POSIX_VERSION */ |
408 | NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, |
409 | CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); |
410 | sysctl_createv(clog, 0, NULL, NULL, |
411 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
412 | CTLTYPE_INT, "labelsector" , |
413 | SYSCTL_DESCR("Sector number containing the disklabel" ), |
414 | NULL, LABELSECTOR, NULL, 0, |
415 | CTL_KERN, KERN_LABELSECTOR, CTL_EOL); |
416 | sysctl_createv(clog, 0, NULL, NULL, |
417 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
418 | CTLTYPE_INT, "labeloffset" , |
419 | SYSCTL_DESCR("Offset of the disklabel within the " |
420 | "sector" ), |
421 | NULL, LABELOFFSET, NULL, 0, |
422 | CTL_KERN, KERN_LABELOFFSET, CTL_EOL); |
423 | sysctl_createv(clog, 0, NULL, NULL, |
424 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
425 | CTLTYPE_INT, "labelusesmbr" , |
426 | SYSCTL_DESCR("disklabel is inside MBR partition" ), |
427 | NULL, LABELUSESMBR, NULL, 0, |
428 | CTL_KERN, CTL_CREATE, CTL_EOL); |
429 | sysctl_createv(clog, 0, NULL, NULL, |
430 | CTLFLAG_PERMANENT, |
431 | CTLTYPE_NODE, "lwp" , |
432 | SYSCTL_DESCR("System-wide LWP information" ), |
433 | sysctl_kern_lwp, 0, NULL, 0, |
434 | CTL_KERN, KERN_LWP, CTL_EOL); |
435 | sysctl_createv(clog, 0, NULL, NULL, |
436 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
437 | CTLTYPE_INT, "forkfsleep" , |
438 | SYSCTL_DESCR("Milliseconds to sleep on fork failure due " |
439 | "to process limits" ), |
440 | sysctl_kern_forkfsleep, 0, NULL, 0, |
441 | CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); |
442 | sysctl_createv(clog, 0, NULL, NULL, |
443 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
444 | CTLTYPE_INT, "posix_threads" , |
445 | SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " |
446 | "Threads option to which the system " |
447 | "attempts to conform" ), |
448 | /* XXX _POSIX_VERSION */ |
449 | NULL, _POSIX_THREADS, NULL, 0, |
450 | CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); |
451 | sysctl_createv(clog, 0, NULL, NULL, |
452 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
453 | CTLTYPE_INT, "posix_semaphores" , |
454 | SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " |
455 | "Semaphores option to which the system " |
456 | "attempts to conform" ), NULL, |
457 | 200112, NULL, 0, |
458 | CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); |
459 | sysctl_createv(clog, 0, NULL, NULL, |
460 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
461 | CTLTYPE_INT, "posix_barriers" , |
462 | SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " |
463 | "Barriers option to which the system " |
464 | "attempts to conform" ), |
465 | /* XXX _POSIX_VERSION */ |
466 | NULL, _POSIX_BARRIERS, NULL, 0, |
467 | CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); |
468 | sysctl_createv(clog, 0, NULL, NULL, |
469 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
470 | CTLTYPE_INT, "posix_timers" , |
471 | SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " |
472 | "Timers option to which the system " |
473 | "attempts to conform" ), |
474 | /* XXX _POSIX_VERSION */ |
475 | NULL, _POSIX_TIMERS, NULL, 0, |
476 | CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); |
477 | sysctl_createv(clog, 0, NULL, NULL, |
478 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
479 | CTLTYPE_INT, "posix_spin_locks" , |
480 | SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " |
481 | "Locks option to which the system attempts " |
482 | "to conform" ), |
483 | /* XXX _POSIX_VERSION */ |
484 | NULL, _POSIX_SPIN_LOCKS, NULL, 0, |
485 | CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); |
486 | sysctl_createv(clog, 0, NULL, NULL, |
487 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
488 | CTLTYPE_INT, "posix_reader_writer_locks" , |
489 | SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " |
490 | "Read-Write Locks option to which the " |
491 | "system attempts to conform" ), |
492 | /* XXX _POSIX_VERSION */ |
493 | NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, |
494 | CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); |
495 | sysctl_createv(clog, 0, NULL, NULL, |
496 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
497 | CTLTYPE_INT, "dump_on_panic" , |
498 | SYSCTL_DESCR("Perform a crash dump on system panic" ), |
499 | NULL, 0, &dumponpanic, 0, |
500 | CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); |
501 | #ifdef DIAGNOSTIC |
502 | sysctl_createv(clog, 0, NULL, NULL, |
503 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
504 | CTLTYPE_INT, "panic_now" , |
505 | SYSCTL_DESCR("Trigger a panic" ), |
506 | sysctl_kern_trigger_panic, 0, NULL, 0, |
507 | CTL_KERN, CTL_CREATE, CTL_EOL); |
508 | #endif |
509 | sysctl_createv(clog, 0, NULL, NULL, |
510 | CTLFLAG_PERMANENT, |
511 | CTLTYPE_INT, "root_partition" , |
512 | SYSCTL_DESCR("Root partition on the root device" ), |
513 | sysctl_kern_root_partition, 0, NULL, 0, |
514 | CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); |
515 | sysctl_createv(clog, 0, NULL, NULL, |
516 | CTLFLAG_PERMANENT, |
517 | CTLTYPE_STRUCT, "drivers" , |
518 | SYSCTL_DESCR("List of all drivers with block and " |
519 | "character device numbers" ), |
520 | sysctl_kern_drivers, 0, NULL, 0, |
521 | CTL_KERN, KERN_DRIVERS, CTL_EOL); |
522 | sysctl_createv(clog, 0, NULL, NULL, |
523 | CTLFLAG_PERMANENT, |
524 | CTLTYPE_STRUCT, "cp_id" , |
525 | SYSCTL_DESCR("Mapping of CPU number to CPU id" ), |
526 | sysctl_kern_cpid, 0, NULL, 0, |
527 | CTL_KERN, KERN_CP_ID, CTL_EOL); |
528 | sysctl_createv(clog, 0, NULL, &rnode, |
529 | CTLFLAG_PERMANENT, |
530 | CTLTYPE_NODE, "coredump" , |
531 | SYSCTL_DESCR("Coredump settings." ), |
532 | NULL, 0, NULL, 0, |
533 | CTL_KERN, CTL_CREATE, CTL_EOL); |
534 | sysctl_createv(clog, 0, &rnode, &rnode, |
535 | CTLFLAG_PERMANENT, |
536 | CTLTYPE_NODE, "setid" , |
537 | SYSCTL_DESCR("Set-id processes' coredump settings." ), |
538 | NULL, 0, NULL, 0, |
539 | CTL_CREATE, CTL_EOL); |
540 | sysctl_createv(clog, 0, &rnode, NULL, |
541 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
542 | CTLTYPE_INT, "dump" , |
543 | SYSCTL_DESCR("Allow set-id processes to dump core." ), |
544 | sysctl_security_setidcore, 0, &security_setidcore_dump, |
545 | sizeof(security_setidcore_dump), |
546 | CTL_CREATE, CTL_EOL); |
547 | sysctl_createv(clog, 0, &rnode, NULL, |
548 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
549 | CTLTYPE_STRING, "path" , |
550 | SYSCTL_DESCR("Path pattern for set-id coredumps." ), |
551 | sysctl_security_setidcorename, 0, |
552 | security_setidcore_path, |
553 | sizeof(security_setidcore_path), |
554 | CTL_CREATE, CTL_EOL); |
555 | sysctl_createv(clog, 0, &rnode, NULL, |
556 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
557 | CTLTYPE_INT, "owner" , |
558 | SYSCTL_DESCR("Owner id for set-id processes' cores." ), |
559 | sysctl_security_setidcore, 0, &security_setidcore_owner, |
560 | 0, |
561 | CTL_CREATE, CTL_EOL); |
562 | sysctl_createv(clog, 0, &rnode, NULL, |
563 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
564 | CTLTYPE_INT, "group" , |
565 | SYSCTL_DESCR("Group id for set-id processes' cores." ), |
566 | sysctl_security_setidcore, 0, &security_setidcore_group, |
567 | 0, |
568 | CTL_CREATE, CTL_EOL); |
569 | sysctl_createv(clog, 0, &rnode, NULL, |
570 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
571 | CTLTYPE_INT, "mode" , |
572 | SYSCTL_DESCR("Mode for set-id processes' cores." ), |
573 | sysctl_security_setidcore, 0, &security_setidcore_mode, |
574 | 0, |
575 | CTL_CREATE, CTL_EOL); |
576 | sysctl_createv(clog, 0, NULL, NULL, |
577 | CTLFLAG_IMMEDIATE|CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
578 | CTLTYPE_INT, "no_sa_support" , |
579 | SYSCTL_DESCR("0 if the kernel supports SA, otherwise " |
580 | "it doesn't" ), |
581 | NULL, 1, NULL, 0, |
582 | CTL_KERN, CTL_CREATE, CTL_EOL); |
583 | sysctl_createv(clog, 0, NULL, NULL, |
584 | CTLFLAG_PERMANENT, |
585 | CTLTYPE_STRING, "configname" , |
586 | SYSCTL_DESCR("Name of config file" ), |
587 | NULL, 0, __UNCONST(kernel_ident), 0, |
588 | CTL_KERN, CTL_CREATE, CTL_EOL); |
589 | sysctl_createv(clog, 0, NULL, NULL, |
590 | CTLFLAG_PERMANENT, |
591 | CTLTYPE_STRING, "buildinfo" , |
592 | SYSCTL_DESCR("Information from build environment" ), |
593 | NULL, 0, __UNCONST(buildinfo), 0, |
594 | CTL_KERN, CTL_CREATE, CTL_EOL); |
595 | sysctl_createv(clog, 0, NULL, NULL, |
596 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
597 | CTLTYPE_INT, "messages" , |
598 | SYSCTL_DESCR("Kernel message verbosity" ), |
599 | sysctl_kern_messages, 0, NULL, 0, |
600 | CTL_KERN, CTL_CREATE, CTL_EOL); |
601 | } |
602 | |
603 | SYSCTL_SETUP(sysctl_hw_misc_setup, "sysctl hw subtree misc setup" ) |
604 | { |
605 | |
606 | sysctl_createv(clog, 0, NULL, NULL, |
607 | CTLFLAG_PERMANENT, |
608 | CTLTYPE_INT, "usermem" , |
609 | SYSCTL_DESCR("Bytes of non-kernel memory" ), |
610 | sysctl_hw_usermem, 0, NULL, 0, |
611 | CTL_HW, HW_USERMEM, CTL_EOL); |
612 | sysctl_createv(clog, 0, NULL, NULL, |
613 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, |
614 | CTLTYPE_STRING, "cnmagic" , |
615 | SYSCTL_DESCR("Console magic key sequence" ), |
616 | sysctl_hw_cnmagic, 0, NULL, CNS_LEN, |
617 | CTL_HW, HW_CNMAGIC, CTL_EOL); |
618 | sysctl_createv(clog, 0, NULL, NULL, |
619 | CTLFLAG_PERMANENT, |
620 | CTLTYPE_QUAD, "usermem64" , |
621 | SYSCTL_DESCR("Bytes of non-kernel memory" ), |
622 | sysctl_hw_usermem, 0, NULL, 0, |
623 | CTL_HW, HW_USERMEM64, CTL_EOL); |
624 | } |
625 | |
626 | #ifdef DEBUG |
627 | /* |
628 | * Debugging related system variables. |
629 | */ |
630 | struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; |
631 | struct ctldebug debug5, debug6, debug7, debug8, debug9; |
632 | struct ctldebug debug10, debug11, debug12, debug13, debug14; |
633 | struct ctldebug debug15, debug16, debug17, debug18, debug19; |
634 | static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { |
635 | &debug0, &debug1, &debug2, &debug3, &debug4, |
636 | &debug5, &debug6, &debug7, &debug8, &debug9, |
637 | &debug10, &debug11, &debug12, &debug13, &debug14, |
638 | &debug15, &debug16, &debug17, &debug18, &debug19, |
639 | }; |
640 | |
641 | /* |
642 | * this setup routine is a replacement for debug_sysctl() |
643 | * |
644 | * note that it creates several nodes per defined debug variable |
645 | */ |
646 | SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup" ) |
647 | { |
648 | struct ctldebug *cdp; |
649 | char nodename[20]; |
650 | int i; |
651 | |
652 | /* |
653 | * two ways here: |
654 | * |
655 | * the "old" way (debug.name -> value) which was emulated by |
656 | * the sysctl(8) binary |
657 | * |
658 | * the new way, which the sysctl(8) binary was actually using |
659 | |
660 | node debug |
661 | node debug.0 |
662 | string debug.0.name |
663 | int debug.0.value |
664 | int debug.name |
665 | |
666 | */ |
667 | |
668 | for (i = 0; i < CTL_DEBUG_MAXID; i++) { |
669 | cdp = debugvars[i]; |
670 | if (cdp->debugname == NULL || cdp->debugvar == NULL) |
671 | continue; |
672 | |
673 | snprintf(nodename, sizeof(nodename), "debug%d" , i); |
674 | sysctl_createv(clog, 0, NULL, NULL, |
675 | CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, |
676 | CTLTYPE_NODE, nodename, NULL, |
677 | NULL, 0, NULL, 0, |
678 | CTL_DEBUG, i, CTL_EOL); |
679 | sysctl_createv(clog, 0, NULL, NULL, |
680 | CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, |
681 | CTLTYPE_STRING, "name" , NULL, |
682 | /*XXXUNCONST*/ |
683 | NULL, 0, __UNCONST(cdp->debugname), 0, |
684 | CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); |
685 | sysctl_createv(clog, 0, NULL, NULL, |
686 | CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, |
687 | CTLTYPE_INT, "value" , NULL, |
688 | NULL, 0, cdp->debugvar, 0, |
689 | CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); |
690 | sysctl_createv(clog, 0, NULL, NULL, |
691 | CTLFLAG_PERMANENT, |
692 | CTLTYPE_INT, cdp->debugname, NULL, |
693 | NULL, 0, cdp->debugvar, 0, |
694 | CTL_DEBUG, CTL_CREATE, CTL_EOL); |
695 | } |
696 | } |
697 | #endif /* DEBUG */ |
698 | |
699 | /* |
700 | * ******************************************************************** |
701 | * section 2: private node-specific helper routines. |
702 | * ******************************************************************** |
703 | */ |
704 | |
705 | #ifdef DIAGNOSTIC |
706 | static int |
707 | sysctl_kern_trigger_panic(SYSCTLFN_ARGS) |
708 | { |
709 | int newtrig, error; |
710 | struct sysctlnode node; |
711 | |
712 | newtrig = 0; |
713 | node = *rnode; |
714 | node.sysctl_data = &newtrig; |
715 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
716 | if (error || newp == NULL) |
717 | return (error); |
718 | |
719 | if (newtrig != 0) |
720 | panic("Panic triggered" ); |
721 | |
722 | return (error); |
723 | } |
724 | #endif |
725 | |
726 | /* |
727 | * sysctl helper routine for kern.maxvnodes. Drain vnodes if |
728 | * new value is lower than desiredvnodes and then calls reinit |
729 | * routines that needs to adjust to the new value. |
730 | */ |
731 | static int |
732 | sysctl_kern_maxvnodes(SYSCTLFN_ARGS) |
733 | { |
734 | int error, new_vnodes, old_vnodes, new_max; |
735 | struct sysctlnode node; |
736 | |
737 | new_vnodes = desiredvnodes; |
738 | node = *rnode; |
739 | node.sysctl_data = &new_vnodes; |
740 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
741 | if (error || newp == NULL) |
742 | return (error); |
743 | |
744 | /* |
745 | * sysctl passes down unsigned values, require them |
746 | * to be positive |
747 | */ |
748 | if (new_vnodes <= 0) |
749 | return (EINVAL); |
750 | |
751 | /* Limits: 75% of kmem and physical memory. */ |
752 | new_max = calc_cache_size(vmem_size(kmem_arena, VMEM_FREE|VMEM_ALLOC), |
753 | 75, 75) / VNODE_COST; |
754 | if (new_vnodes > new_max) |
755 | new_vnodes = new_max; |
756 | |
757 | old_vnodes = desiredvnodes; |
758 | desiredvnodes = new_vnodes; |
759 | error = vfs_drainvnodes(new_vnodes); |
760 | if (error) { |
761 | desiredvnodes = old_vnodes; |
762 | return (error); |
763 | } |
764 | vfs_reinit(); |
765 | nchreinit(); |
766 | |
767 | return (0); |
768 | } |
769 | |
770 | /* |
771 | * sysctl helper routine for kern.messages. |
772 | * Alters boothowto to display kernel messages in increasing verbosity |
773 | * from 0 to 4. |
774 | */ |
775 | |
776 | #define MAXMESSAGES 4 |
777 | static int |
778 | sysctl_kern_messages(SYSCTLFN_ARGS) |
779 | { |
780 | int error, messageverbose, messagemask, newboothowto; |
781 | struct sysctlnode node; |
782 | |
783 | messagemask = (AB_NORMAL|AB_QUIET|AB_SILENT|AB_VERBOSE|AB_DEBUG); |
784 | switch (boothowto & messagemask) { |
785 | case AB_SILENT: |
786 | messageverbose = 0; |
787 | break; |
788 | case AB_QUIET: |
789 | messageverbose = 1; |
790 | break; |
791 | case AB_VERBOSE: |
792 | messageverbose = 3; |
793 | break; |
794 | case AB_DEBUG: |
795 | messageverbose = 4; |
796 | break; |
797 | case AB_NORMAL: |
798 | default: |
799 | messageverbose = 2; |
800 | } |
801 | |
802 | node = *rnode; |
803 | node.sysctl_data = &messageverbose; |
804 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
805 | if (error || newp == NULL) |
806 | return (error); |
807 | if (messageverbose < 0 || messageverbose > MAXMESSAGES) |
808 | return EINVAL; |
809 | |
810 | /* Set boothowto */ |
811 | newboothowto = boothowto & ~messagemask; |
812 | |
813 | switch (messageverbose) { |
814 | case 0: |
815 | newboothowto |= AB_SILENT; |
816 | break; |
817 | case 1: |
818 | newboothowto |= AB_QUIET; |
819 | break; |
820 | case 3: |
821 | newboothowto |= AB_VERBOSE; |
822 | break; |
823 | case 4: |
824 | newboothowto |= AB_DEBUG; |
825 | break; |
826 | case 2: |
827 | default: /* Messages default to normal. */ |
828 | break; |
829 | } |
830 | |
831 | boothowto = newboothowto; |
832 | |
833 | return (0); |
834 | } |
835 | |
836 | /* |
837 | * sysctl helper routine for rtc_offset - set time after changes |
838 | */ |
839 | static int |
840 | sysctl_kern_rtc_offset(SYSCTLFN_ARGS) |
841 | { |
842 | struct timespec ts, delta; |
843 | int error, new_rtc_offset; |
844 | struct sysctlnode node; |
845 | |
846 | new_rtc_offset = rtc_offset; |
847 | node = *rnode; |
848 | node.sysctl_data = &new_rtc_offset; |
849 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
850 | if (error || newp == NULL) |
851 | return (error); |
852 | |
853 | if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, |
854 | KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, |
855 | KAUTH_ARG(new_rtc_offset), NULL, NULL)) |
856 | return (EPERM); |
857 | if (rtc_offset == new_rtc_offset) |
858 | return (0); |
859 | |
860 | /* if we change the offset, adjust the time */ |
861 | nanotime(&ts); |
862 | delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); |
863 | delta.tv_nsec = 0; |
864 | timespecadd(&ts, &delta, &ts); |
865 | rtc_offset = new_rtc_offset; |
866 | return (settime(l->l_proc, &ts)); |
867 | } |
868 | |
869 | /* |
870 | * sysctl helper routine for kern.maxproc. Ensures that the new |
871 | * values are not too low or too high. |
872 | */ |
873 | static int |
874 | sysctl_kern_maxproc(SYSCTLFN_ARGS) |
875 | { |
876 | int error, nmaxproc; |
877 | struct sysctlnode node; |
878 | |
879 | nmaxproc = maxproc; |
880 | node = *rnode; |
881 | node.sysctl_data = &nmaxproc; |
882 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
883 | if (error || newp == NULL) |
884 | return (error); |
885 | |
886 | if (nmaxproc < 0 || nmaxproc >= PID_MAX) |
887 | return (EINVAL); |
888 | #ifdef __HAVE_CPU_MAXPROC |
889 | if (nmaxproc > cpu_maxproc()) |
890 | return (EINVAL); |
891 | #endif |
892 | maxproc = nmaxproc; |
893 | |
894 | return (0); |
895 | } |
896 | |
897 | /* |
898 | * sysctl helper function for kern.hostid. The hostid is a long, but |
899 | * we export it as an int, so we need to give it a little help. |
900 | */ |
901 | static int |
902 | sysctl_kern_hostid(SYSCTLFN_ARGS) |
903 | { |
904 | int error, inthostid; |
905 | struct sysctlnode node; |
906 | |
907 | inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ |
908 | node = *rnode; |
909 | node.sysctl_data = &inthostid; |
910 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
911 | if (error || newp == NULL) |
912 | return (error); |
913 | |
914 | hostid = (unsigned)inthostid; |
915 | |
916 | return (0); |
917 | } |
918 | |
919 | /* |
920 | * sysctl helper routine for kern.defcorename. In the case of a new |
921 | * string being assigned, check that it's not a zero-length string. |
922 | * (XXX the check in -current doesn't work, but do we really care?) |
923 | */ |
924 | static int |
925 | sysctl_kern_defcorename(SYSCTLFN_ARGS) |
926 | { |
927 | int error; |
928 | char *newcorename; |
929 | struct sysctlnode node; |
930 | |
931 | newcorename = PNBUF_GET(); |
932 | node = *rnode; |
933 | node.sysctl_data = &newcorename[0]; |
934 | memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); |
935 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
936 | if (error || newp == NULL) { |
937 | goto done; |
938 | } |
939 | |
940 | /* |
941 | * when sysctl_lookup() deals with a string, it's guaranteed |
942 | * to come back nul terminated. So there. :) |
943 | */ |
944 | if (strlen(newcorename) == 0) { |
945 | error = EINVAL; |
946 | } else { |
947 | memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); |
948 | error = 0; |
949 | } |
950 | done: |
951 | PNBUF_PUT(newcorename); |
952 | return error; |
953 | } |
954 | |
955 | /* |
956 | * sysctl helper routine for kern.cp_time node. Adds up cpu time |
957 | * across all cpus. |
958 | */ |
959 | static int |
960 | sysctl_kern_cptime(SYSCTLFN_ARGS) |
961 | { |
962 | struct sysctlnode node = *rnode; |
963 | uint64_t *cp_time = NULL; |
964 | int error, n = ncpu, i; |
965 | struct cpu_info *ci; |
966 | CPU_INFO_ITERATOR cii; |
967 | |
968 | /* |
969 | * if you specifically pass a buffer that is the size of the |
970 | * sum, or if you are probing for the size, you get the "sum" |
971 | * of cp_time (and the size thereof) across all processors. |
972 | * |
973 | * alternately, you can pass an additional mib number and get |
974 | * cp_time for that particular processor. |
975 | */ |
976 | switch (namelen) { |
977 | case 0: |
978 | if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { |
979 | node.sysctl_size = sizeof(uint64_t) * CPUSTATES; |
980 | n = -1; /* SUM */ |
981 | } |
982 | else { |
983 | node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; |
984 | n = -2; /* ALL */ |
985 | } |
986 | break; |
987 | case 1: |
988 | if (name[0] < 0 || name[0] >= n) |
989 | return (ENOENT); /* ENOSUCHPROCESSOR */ |
990 | node.sysctl_size = sizeof(uint64_t) * CPUSTATES; |
991 | n = name[0]; |
992 | /* |
993 | * adjust these so that sysctl_lookup() will be happy |
994 | */ |
995 | name++; |
996 | namelen--; |
997 | break; |
998 | default: |
999 | return (EINVAL); |
1000 | } |
1001 | |
1002 | cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); |
1003 | if (cp_time == NULL) |
1004 | return (ENOMEM); |
1005 | node.sysctl_data = cp_time; |
1006 | memset(cp_time, 0, node.sysctl_size); |
1007 | |
1008 | for (CPU_INFO_FOREACH(cii, ci)) { |
1009 | if (n <= 0) { |
1010 | for (i = 0; i < CPUSTATES; i++) { |
1011 | cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; |
1012 | } |
1013 | } |
1014 | /* |
1015 | * if a specific processor was requested and we just |
1016 | * did it, we're done here |
1017 | */ |
1018 | if (n == 0) |
1019 | break; |
1020 | /* |
1021 | * if doing "all", skip to next cp_time set for next processor |
1022 | */ |
1023 | if (n == -2) |
1024 | cp_time += CPUSTATES; |
1025 | /* |
1026 | * if we're doing a specific processor, we're one |
1027 | * processor closer |
1028 | */ |
1029 | if (n > 0) |
1030 | n--; |
1031 | } |
1032 | |
1033 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
1034 | kmem_free(node.sysctl_data, node.sysctl_size); |
1035 | return (error); |
1036 | } |
1037 | |
1038 | #if NPTY > 0 |
1039 | /* |
1040 | * sysctl helper routine for kern.maxptys. Ensures that any new value |
1041 | * is acceptable to the pty subsystem. |
1042 | */ |
1043 | static int |
1044 | sysctl_kern_maxptys(SYSCTLFN_ARGS) |
1045 | { |
1046 | int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ |
1047 | int error, xmax; |
1048 | struct sysctlnode node; |
1049 | |
1050 | /* get current value of maxptys */ |
1051 | xmax = pty_maxptys(0, 0); |
1052 | |
1053 | node = *rnode; |
1054 | node.sysctl_data = &xmax; |
1055 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
1056 | if (error || newp == NULL) |
1057 | return (error); |
1058 | |
1059 | if (xmax != pty_maxptys(xmax, 1)) |
1060 | return (EINVAL); |
1061 | |
1062 | return (0); |
1063 | } |
1064 | #endif /* NPTY > 0 */ |
1065 | |
1066 | /* |
1067 | * sysctl helper routine to do kern.lwp.* work. |
1068 | */ |
1069 | static int |
1070 | sysctl_kern_lwp(SYSCTLFN_ARGS) |
1071 | { |
1072 | struct kinfo_lwp klwp; |
1073 | struct proc *p; |
1074 | struct lwp *l2, *l3; |
1075 | char *where, *dp; |
1076 | int pid, elem_size, elem_count; |
1077 | int buflen, needed, error; |
1078 | bool gotit; |
1079 | |
1080 | if (namelen == 1 && name[0] == CTL_QUERY) |
1081 | return (sysctl_query(SYSCTLFN_CALL(rnode))); |
1082 | |
1083 | dp = where = oldp; |
1084 | buflen = where != NULL ? *oldlenp : 0; |
1085 | error = needed = 0; |
1086 | |
1087 | if (newp != NULL || namelen != 3) |
1088 | return (EINVAL); |
1089 | pid = name[0]; |
1090 | elem_size = name[1]; |
1091 | elem_count = name[2]; |
1092 | |
1093 | sysctl_unlock(); |
1094 | if (pid == -1) { |
1095 | mutex_enter(proc_lock); |
1096 | PROCLIST_FOREACH(p, &allproc) { |
1097 | /* Grab a hold on the process. */ |
1098 | if (!rw_tryenter(&p->p_reflock, RW_READER)) { |
1099 | continue; |
1100 | } |
1101 | mutex_exit(proc_lock); |
1102 | |
1103 | mutex_enter(p->p_lock); |
1104 | LIST_FOREACH(l2, &p->p_lwps, l_sibling) { |
1105 | if (buflen >= elem_size && elem_count > 0) { |
1106 | lwp_lock(l2); |
1107 | fill_lwp(l2, &klwp); |
1108 | lwp_unlock(l2); |
1109 | mutex_exit(p->p_lock); |
1110 | |
1111 | /* |
1112 | * Copy out elem_size, but not |
1113 | * larger than the size of a |
1114 | * struct kinfo_proc2. |
1115 | */ |
1116 | error = dcopyout(l, &klwp, dp, |
1117 | min(sizeof(klwp), elem_size)); |
1118 | if (error) { |
1119 | rw_exit(&p->p_reflock); |
1120 | goto cleanup; |
1121 | } |
1122 | mutex_enter(p->p_lock); |
1123 | LIST_FOREACH(l3, &p->p_lwps, |
1124 | l_sibling) { |
1125 | if (l2 == l3) |
1126 | break; |
1127 | } |
1128 | if (l3 == NULL) { |
1129 | mutex_exit(p->p_lock); |
1130 | rw_exit(&p->p_reflock); |
1131 | error = EAGAIN; |
1132 | goto cleanup; |
1133 | } |
1134 | dp += elem_size; |
1135 | buflen -= elem_size; |
1136 | elem_count--; |
1137 | } |
1138 | needed += elem_size; |
1139 | } |
1140 | mutex_exit(p->p_lock); |
1141 | |
1142 | /* Drop reference to process. */ |
1143 | mutex_enter(proc_lock); |
1144 | rw_exit(&p->p_reflock); |
1145 | } |
1146 | mutex_exit(proc_lock); |
1147 | } else { |
1148 | mutex_enter(proc_lock); |
1149 | p = proc_find(pid); |
1150 | if (p == NULL) { |
1151 | error = ESRCH; |
1152 | mutex_exit(proc_lock); |
1153 | goto cleanup; |
1154 | } |
1155 | /* Grab a hold on the process. */ |
1156 | gotit = rw_tryenter(&p->p_reflock, RW_READER); |
1157 | mutex_exit(proc_lock); |
1158 | if (!gotit) { |
1159 | error = ESRCH; |
1160 | goto cleanup; |
1161 | } |
1162 | |
1163 | mutex_enter(p->p_lock); |
1164 | LIST_FOREACH(l2, &p->p_lwps, l_sibling) { |
1165 | if (buflen >= elem_size && elem_count > 0) { |
1166 | lwp_lock(l2); |
1167 | fill_lwp(l2, &klwp); |
1168 | lwp_unlock(l2); |
1169 | mutex_exit(p->p_lock); |
1170 | /* |
1171 | * Copy out elem_size, but not larger than |
1172 | * the size of a struct kinfo_proc2. |
1173 | */ |
1174 | error = dcopyout(l, &klwp, dp, |
1175 | min(sizeof(klwp), elem_size)); |
1176 | if (error) { |
1177 | rw_exit(&p->p_reflock); |
1178 | goto cleanup; |
1179 | } |
1180 | mutex_enter(p->p_lock); |
1181 | LIST_FOREACH(l3, &p->p_lwps, l_sibling) { |
1182 | if (l2 == l3) |
1183 | break; |
1184 | } |
1185 | if (l3 == NULL) { |
1186 | mutex_exit(p->p_lock); |
1187 | rw_exit(&p->p_reflock); |
1188 | error = EAGAIN; |
1189 | goto cleanup; |
1190 | } |
1191 | dp += elem_size; |
1192 | buflen -= elem_size; |
1193 | elem_count--; |
1194 | } |
1195 | needed += elem_size; |
1196 | } |
1197 | mutex_exit(p->p_lock); |
1198 | |
1199 | /* Drop reference to process. */ |
1200 | rw_exit(&p->p_reflock); |
1201 | } |
1202 | |
1203 | if (where != NULL) { |
1204 | *oldlenp = dp - where; |
1205 | if (needed > *oldlenp) { |
1206 | sysctl_relock(); |
1207 | return (ENOMEM); |
1208 | } |
1209 | } else { |
1210 | needed += KERN_LWPSLOP; |
1211 | *oldlenp = needed; |
1212 | } |
1213 | error = 0; |
1214 | cleanup: |
1215 | sysctl_relock(); |
1216 | return (error); |
1217 | } |
1218 | |
1219 | /* |
1220 | * sysctl helper routine for kern.forkfsleep node. Ensures that the |
1221 | * given value is not too large or two small, and is at least one |
1222 | * timer tick if not zero. |
1223 | */ |
1224 | static int |
1225 | sysctl_kern_forkfsleep(SYSCTLFN_ARGS) |
1226 | { |
1227 | /* userland sees value in ms, internally is in ticks */ |
1228 | extern int forkfsleep; /* defined in kern/kern_fork.c */ |
1229 | int error, timo, lsleep; |
1230 | struct sysctlnode node; |
1231 | |
1232 | lsleep = forkfsleep * 1000 / hz; |
1233 | node = *rnode; |
1234 | node.sysctl_data = &lsleep; |
1235 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
1236 | if (error || newp == NULL) |
1237 | return (error); |
1238 | |
1239 | /* refuse negative values, and overly 'long time' */ |
1240 | if (lsleep < 0 || lsleep > MAXSLP * 1000) |
1241 | return (EINVAL); |
1242 | |
1243 | timo = mstohz(lsleep); |
1244 | |
1245 | /* if the interval is >0 ms && <1 tick, use 1 tick */ |
1246 | if (lsleep != 0 && timo == 0) |
1247 | forkfsleep = 1; |
1248 | else |
1249 | forkfsleep = timo; |
1250 | |
1251 | return (0); |
1252 | } |
1253 | |
1254 | /* |
1255 | * sysctl helper routine for kern.root_partition |
1256 | */ |
1257 | static int |
1258 | sysctl_kern_root_partition(SYSCTLFN_ARGS) |
1259 | { |
1260 | int rootpart = DISKPART(rootdev); |
1261 | struct sysctlnode node = *rnode; |
1262 | |
1263 | node.sysctl_data = &rootpart; |
1264 | return (sysctl_lookup(SYSCTLFN_CALL(&node))); |
1265 | } |
1266 | |
1267 | /* |
1268 | * sysctl helper function for kern.drivers |
1269 | */ |
1270 | static int |
1271 | sysctl_kern_drivers(SYSCTLFN_ARGS) |
1272 | { |
1273 | int error; |
1274 | size_t buflen; |
1275 | struct kinfo_drivers kd; |
1276 | char *start, *where; |
1277 | const char *dname; |
1278 | int i; |
1279 | extern struct devsw_conv *devsw_conv; |
1280 | extern int max_devsw_convs; |
1281 | |
1282 | start = where = oldp; |
1283 | buflen = *oldlenp; |
1284 | if (where == NULL) { |
1285 | *oldlenp = max_devsw_convs * sizeof kd; |
1286 | return 0; |
1287 | } |
1288 | |
1289 | /* |
1290 | * An array of kinfo_drivers structures |
1291 | */ |
1292 | error = 0; |
1293 | sysctl_unlock(); |
1294 | mutex_enter(&device_lock); |
1295 | for (i = 0; i < max_devsw_convs; i++) { |
1296 | dname = devsw_conv[i].d_name; |
1297 | if (dname == NULL) |
1298 | continue; |
1299 | if (buflen < sizeof kd) { |
1300 | error = ENOMEM; |
1301 | break; |
1302 | } |
1303 | memset(&kd, 0, sizeof(kd)); |
1304 | kd.d_bmajor = devsw_conv[i].d_bmajor; |
1305 | kd.d_cmajor = devsw_conv[i].d_cmajor; |
1306 | strlcpy(kd.d_name, dname, sizeof kd.d_name); |
1307 | mutex_exit(&device_lock); |
1308 | error = dcopyout(l, &kd, where, sizeof kd); |
1309 | mutex_enter(&device_lock); |
1310 | if (error != 0) |
1311 | break; |
1312 | buflen -= sizeof kd; |
1313 | where += sizeof kd; |
1314 | } |
1315 | mutex_exit(&device_lock); |
1316 | sysctl_relock(); |
1317 | *oldlenp = where - start; |
1318 | return error; |
1319 | } |
1320 | |
1321 | static int |
1322 | sysctl_security_setidcore(SYSCTLFN_ARGS) |
1323 | { |
1324 | int newsize, error; |
1325 | struct sysctlnode node; |
1326 | |
1327 | node = *rnode; |
1328 | node.sysctl_data = &newsize; |
1329 | newsize = *(int *)rnode->sysctl_data; |
1330 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
1331 | if (error || newp == NULL) |
1332 | return error; |
1333 | |
1334 | if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, |
1335 | 0, NULL, NULL, NULL)) |
1336 | return (EPERM); |
1337 | |
1338 | *(int *)rnode->sysctl_data = newsize; |
1339 | |
1340 | return 0; |
1341 | } |
1342 | |
1343 | static int |
1344 | sysctl_security_setidcorename(SYSCTLFN_ARGS) |
1345 | { |
1346 | int error; |
1347 | char *newsetidcorename; |
1348 | struct sysctlnode node; |
1349 | |
1350 | newsetidcorename = PNBUF_GET(); |
1351 | node = *rnode; |
1352 | node.sysctl_data = newsetidcorename; |
1353 | memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); |
1354 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
1355 | if (error || newp == NULL) { |
1356 | goto out; |
1357 | } |
1358 | if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, |
1359 | 0, NULL, NULL, NULL)) { |
1360 | error = EPERM; |
1361 | goto out; |
1362 | } |
1363 | if (strlen(newsetidcorename) == 0) { |
1364 | error = EINVAL; |
1365 | goto out; |
1366 | } |
1367 | memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); |
1368 | out: |
1369 | PNBUF_PUT(newsetidcorename); |
1370 | return error; |
1371 | } |
1372 | |
1373 | /* |
1374 | * sysctl helper routine for kern.cp_id node. Maps cpus to their |
1375 | * cpuids. |
1376 | */ |
1377 | static int |
1378 | sysctl_kern_cpid(SYSCTLFN_ARGS) |
1379 | { |
1380 | struct sysctlnode node = *rnode; |
1381 | uint64_t *cp_id = NULL; |
1382 | int error, n = ncpu; |
1383 | struct cpu_info *ci; |
1384 | CPU_INFO_ITERATOR cii; |
1385 | |
1386 | /* |
1387 | * Here you may either retrieve a single cpu id or the whole |
1388 | * set. The size you get back when probing depends on what |
1389 | * you ask for. |
1390 | */ |
1391 | switch (namelen) { |
1392 | case 0: |
1393 | node.sysctl_size = n * sizeof(uint64_t); |
1394 | n = -2; /* ALL */ |
1395 | break; |
1396 | case 1: |
1397 | if (name[0] < 0 || name[0] >= n) |
1398 | return (ENOENT); /* ENOSUCHPROCESSOR */ |
1399 | node.sysctl_size = sizeof(uint64_t); |
1400 | n = name[0]; |
1401 | /* |
1402 | * adjust these so that sysctl_lookup() will be happy |
1403 | */ |
1404 | name++; |
1405 | namelen--; |
1406 | break; |
1407 | default: |
1408 | return (EINVAL); |
1409 | } |
1410 | |
1411 | cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP); |
1412 | if (cp_id == NULL) |
1413 | return (ENOMEM); |
1414 | node.sysctl_data = cp_id; |
1415 | memset(cp_id, 0, node.sysctl_size); |
1416 | |
1417 | for (CPU_INFO_FOREACH(cii, ci)) { |
1418 | if (n <= 0) |
1419 | cp_id[0] = cpu_index(ci); |
1420 | /* |
1421 | * if a specific processor was requested and we just |
1422 | * did it, we're done here |
1423 | */ |
1424 | if (n == 0) |
1425 | break; |
1426 | /* |
1427 | * if doing "all", skip to next cp_id slot for next processor |
1428 | */ |
1429 | if (n == -2) |
1430 | cp_id++; |
1431 | /* |
1432 | * if we're doing a specific processor, we're one |
1433 | * processor closer |
1434 | */ |
1435 | if (n > 0) |
1436 | n--; |
1437 | } |
1438 | |
1439 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
1440 | kmem_free(node.sysctl_data, node.sysctl_size); |
1441 | return (error); |
1442 | } |
1443 | |
1444 | /* |
1445 | * sysctl helper routine for hw.usermem and hw.usermem64. Values are |
1446 | * calculate on the fly taking into account integer overflow and the |
1447 | * current wired count. |
1448 | */ |
1449 | static int |
1450 | sysctl_hw_usermem(SYSCTLFN_ARGS) |
1451 | { |
1452 | u_int ui; |
1453 | u_quad_t uq; |
1454 | struct sysctlnode node; |
1455 | |
1456 | node = *rnode; |
1457 | switch (rnode->sysctl_num) { |
1458 | case HW_USERMEM: |
1459 | if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) |
1460 | ui = UINT_MAX; |
1461 | else |
1462 | ui *= PAGE_SIZE; |
1463 | node.sysctl_data = &ui; |
1464 | break; |
1465 | case HW_USERMEM64: |
1466 | uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; |
1467 | node.sysctl_data = &uq; |
1468 | break; |
1469 | default: |
1470 | return (EINVAL); |
1471 | } |
1472 | |
1473 | return (sysctl_lookup(SYSCTLFN_CALL(&node))); |
1474 | } |
1475 | |
1476 | /* |
1477 | * sysctl helper routine for kern.cnmagic node. Pulls the old value |
1478 | * out, encoded, and stuffs the new value in for decoding. |
1479 | */ |
1480 | static int |
1481 | sysctl_hw_cnmagic(SYSCTLFN_ARGS) |
1482 | { |
1483 | char magic[CNS_LEN]; |
1484 | int error; |
1485 | struct sysctlnode node; |
1486 | |
1487 | if (oldp) |
1488 | cn_get_magic(magic, CNS_LEN); |
1489 | node = *rnode; |
1490 | node.sysctl_data = &magic[0]; |
1491 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
1492 | if (error || newp == NULL) |
1493 | return (error); |
1494 | |
1495 | return (cn_set_magic(magic)); |
1496 | } |
1497 | |
1498 | /* |
1499 | * ******************************************************************** |
1500 | * section 3: public helper routines that are used for more than one |
1501 | * node |
1502 | * ******************************************************************** |
1503 | */ |
1504 | |
1505 | /* |
1506 | * sysctl helper routine for the kern.root_device node and some ports' |
1507 | * machdep.root_device nodes. |
1508 | */ |
1509 | int |
1510 | sysctl_root_device(SYSCTLFN_ARGS) |
1511 | { |
1512 | struct sysctlnode node; |
1513 | |
1514 | node = *rnode; |
1515 | node.sysctl_data = __UNCONST(device_xname(root_device)); |
1516 | node.sysctl_size = strlen(device_xname(root_device)) + 1; |
1517 | return (sysctl_lookup(SYSCTLFN_CALL(&node))); |
1518 | } |
1519 | |
1520 | /* |
1521 | * sysctl helper routine for kern.consdev, dependent on the current |
1522 | * state of the console. Also used for machdep.console_device on some |
1523 | * ports. |
1524 | */ |
1525 | int |
1526 | sysctl_consdev(SYSCTLFN_ARGS) |
1527 | { |
1528 | dev_t consdev; |
1529 | uint32_t oconsdev; |
1530 | struct sysctlnode node; |
1531 | |
1532 | if (cn_tab != NULL) |
1533 | consdev = cn_tab->cn_dev; |
1534 | else |
1535 | consdev = NODEV; |
1536 | node = *rnode; |
1537 | switch (*oldlenp) { |
1538 | case sizeof(consdev): |
1539 | node.sysctl_data = &consdev; |
1540 | node.sysctl_size = sizeof(consdev); |
1541 | break; |
1542 | case sizeof(oconsdev): |
1543 | oconsdev = (uint32_t)consdev; |
1544 | node.sysctl_data = &oconsdev; |
1545 | node.sysctl_size = sizeof(oconsdev); |
1546 | break; |
1547 | default: |
1548 | return EINVAL; |
1549 | } |
1550 | return (sysctl_lookup(SYSCTLFN_CALL(&node))); |
1551 | } |
1552 | |
1553 | /* |
1554 | * ******************************************************************** |
1555 | * section 4: support for some helpers |
1556 | * ******************************************************************** |
1557 | */ |
1558 | |
1559 | |
1560 | /* |
1561 | * Fill in a kinfo_lwp structure for the specified lwp. |
1562 | */ |
1563 | static void |
1564 | fill_lwp(struct lwp *l, struct kinfo_lwp *kl) |
1565 | { |
1566 | struct proc *p = l->l_proc; |
1567 | struct timeval tv; |
1568 | |
1569 | KASSERT(lwp_locked(l, NULL)); |
1570 | |
1571 | memset(kl, 0, sizeof(*kl)); |
1572 | |
1573 | kl->l_forw = 0; |
1574 | kl->l_back = 0; |
1575 | kl->l_laddr = PTRTOUINT64(l); |
1576 | kl->l_addr = PTRTOUINT64(l->l_addr); |
1577 | kl->l_stat = l->l_stat; |
1578 | kl->l_lid = l->l_lid; |
1579 | kl->l_flag = L_INMEM; |
1580 | kl->l_flag |= sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); |
1581 | kl->l_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); |
1582 | |
1583 | kl->l_swtime = l->l_swtime; |
1584 | kl->l_slptime = l->l_slptime; |
1585 | if (l->l_stat == LSONPROC) |
1586 | kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; |
1587 | else |
1588 | kl->l_schedflags = 0; |
1589 | kl->l_priority = lwp_eprio(l); |
1590 | kl->l_usrpri = l->l_priority; |
1591 | if (l->l_wchan) |
1592 | strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); |
1593 | kl->l_wchan = PTRTOUINT64(l->l_wchan); |
1594 | kl->l_cpuid = cpu_index(l->l_cpu); |
1595 | bintime2timeval(&l->l_rtime, &tv); |
1596 | kl->l_rtime_sec = tv.tv_sec; |
1597 | kl->l_rtime_usec = tv.tv_usec; |
1598 | kl->l_cpticks = l->l_cpticks; |
1599 | kl->l_pctcpu = l->l_pctcpu; |
1600 | kl->l_pid = p->p_pid; |
1601 | if (l->l_name == NULL) |
1602 | kl->l_name[0] = '\0'; |
1603 | else |
1604 | strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); |
1605 | } |
1606 | |