init_sysctl.c revision 1.44
1/* $NetBSD: init_sysctl.c,v 1.44 2005/06/15 16:58:31 elad Exp $ */ 2 3/*- 4 * Copyright (c) 2003 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. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39#include <sys/cdefs.h> 40__KERNEL_RCSID(0, "$NetBSD: init_sysctl.c,v 1.44 2005/06/15 16:58:31 elad Exp $"); 41 42#include "opt_sysv.h" 43#include "opt_multiprocessor.h" 44#include "opt_posix.h" 45#include "pty.h" 46#include "rnd.h" 47 48#include <sys/types.h> 49#include <sys/param.h> 50#include <sys/sysctl.h> 51#include <sys/errno.h> 52#include <sys/systm.h> 53#include <sys/kernel.h> 54#include <sys/unistd.h> 55#include <sys/disklabel.h> 56#include <sys/rnd.h> 57#include <sys/vnode.h> 58#include <sys/mount.h> 59#include <sys/namei.h> 60#include <sys/msgbuf.h> 61#include <dev/cons.h> 62#include <sys/socketvar.h> 63#include <sys/file.h> 64#include <sys/filedesc.h> 65#include <sys/tty.h> 66#include <sys/malloc.h> 67#include <sys/resource.h> 68#include <sys/resourcevar.h> 69#include <sys/exec.h> 70#include <sys/conf.h> 71#include <sys/device.h> 72#define VERIEXEC_NEED_NODE 73#include <sys/verified_exec.h> 74 75#if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 76#include <sys/ipc.h> 77#endif 78#ifdef SYSVMSG 79#include <sys/msg.h> 80#endif 81#ifdef SYSVSEM 82#include <sys/sem.h> 83#endif 84#ifdef SYSVSHM 85#include <sys/shm.h> 86#endif 87 88#include <machine/cpu.h> 89 90/* 91 * try over estimating by 5 procs/lwps 92 */ 93#define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 94#define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 95 96#ifndef MULTIPROCESSOR 97#define sysctl_ncpus() (1) 98#else /* MULTIPROCESSOR */ 99#ifndef CPU_INFO_FOREACH 100#define CPU_INFO_ITERATOR int 101#define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 102#endif 103static int 104sysctl_ncpus(void) 105{ 106 struct cpu_info *ci; 107 CPU_INFO_ITERATOR cii; 108 109 int ncpus = 0; 110 for (CPU_INFO_FOREACH(cii, ci)) 111 ncpus++; 112 return (ncpus); 113} 114#endif /* MULTIPROCESSOR */ 115 116static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 117static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 118static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 119static int sysctl_kern_securelevel(SYSCTLFN_PROTO); 120static int sysctl_kern_hostid(SYSCTLFN_PROTO); 121static int sysctl_setlen(SYSCTLFN_PROTO); 122static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 123static int sysctl_kern_file(SYSCTLFN_PROTO); 124static int sysctl_kern_autonice(SYSCTLFN_PROTO); 125static int sysctl_msgbuf(SYSCTLFN_PROTO); 126static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 127static int sysctl_kern_cptime(SYSCTLFN_PROTO); 128#if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 129static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 130#endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 131#if NPTY > 0 132static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 133#endif /* NPTY > 0 */ 134static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 135static int sysctl_kern_urnd(SYSCTLFN_PROTO); 136static int sysctl_kern_lwp(SYSCTLFN_PROTO); 137static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 138static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 139static int sysctl_kern_drivers(SYSCTLFN_PROTO); 140static int sysctl_kern_file2(SYSCTLFN_PROTO); 141#ifdef VERIFIED_EXEC 142static int sysctl_kern_veriexec(SYSCTLFN_PROTO); 143#endif 144static int sysctl_doeproc(SYSCTLFN_PROTO); 145static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 146static int sysctl_hw_usermem(SYSCTLFN_PROTO); 147static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 148static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 149 150static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 151static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 152static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 153 int); 154 155/* 156 * ******************************************************************** 157 * section 1: setup routines 158 * ******************************************************************** 159 * these functions are stuffed into a link set for sysctl setup 160 * functions. they're never called or referenced from anywhere else. 161 * ******************************************************************** 162 */ 163 164/* 165 * sets up the base nodes... 166 */ 167SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 168{ 169 170 sysctl_createv(clog, 0, NULL, NULL, 171 CTLFLAG_PERMANENT, 172 CTLTYPE_NODE, "kern", 173 SYSCTL_DESCR("High kernel"), 174 NULL, 0, NULL, 0, 175 CTL_KERN, CTL_EOL); 176 sysctl_createv(clog, 0, NULL, NULL, 177 CTLFLAG_PERMANENT, 178 CTLTYPE_NODE, "vm", 179 SYSCTL_DESCR("Virtual memory"), 180 NULL, 0, NULL, 0, 181 CTL_VM, CTL_EOL); 182 sysctl_createv(clog, 0, NULL, NULL, 183 CTLFLAG_PERMANENT, 184 CTLTYPE_NODE, "vfs", 185 SYSCTL_DESCR("Filesystem"), 186 NULL, 0, NULL, 0, 187 CTL_VFS, CTL_EOL); 188 sysctl_createv(clog, 0, NULL, NULL, 189 CTLFLAG_PERMANENT, 190 CTLTYPE_NODE, "net", 191 SYSCTL_DESCR("Networking"), 192 NULL, 0, NULL, 0, 193 CTL_NET, CTL_EOL); 194 sysctl_createv(clog, 0, NULL, NULL, 195 CTLFLAG_PERMANENT, 196 CTLTYPE_NODE, "debug", 197 SYSCTL_DESCR("Debugging"), 198 NULL, 0, NULL, 0, 199 CTL_DEBUG, CTL_EOL); 200 sysctl_createv(clog, 0, NULL, NULL, 201 CTLFLAG_PERMANENT, 202 CTLTYPE_NODE, "hw", 203 SYSCTL_DESCR("Generic CPU, I/O"), 204 NULL, 0, NULL, 0, 205 CTL_HW, CTL_EOL); 206 sysctl_createv(clog, 0, NULL, NULL, 207 CTLFLAG_PERMANENT, 208 CTLTYPE_NODE, "machdep", 209 SYSCTL_DESCR("Machine dependent"), 210 NULL, 0, NULL, 0, 211 CTL_MACHDEP, CTL_EOL); 212 /* 213 * this node is inserted so that the sysctl nodes in libc can 214 * operate. 215 */ 216 sysctl_createv(clog, 0, NULL, NULL, 217 CTLFLAG_PERMANENT, 218 CTLTYPE_NODE, "user", 219 SYSCTL_DESCR("User-level"), 220 NULL, 0, NULL, 0, 221 CTL_USER, CTL_EOL); 222 sysctl_createv(clog, 0, NULL, NULL, 223 CTLFLAG_PERMANENT, 224 CTLTYPE_NODE, "ddb", 225 SYSCTL_DESCR("In-kernel debugger"), 226 NULL, 0, NULL, 0, 227 CTL_DDB, CTL_EOL); 228 sysctl_createv(clog, 0, NULL, NULL, 229 CTLFLAG_PERMANENT, 230 CTLTYPE_NODE, "proc", 231 SYSCTL_DESCR("Per-process"), 232 NULL, 0, NULL, 0, 233 CTL_PROC, CTL_EOL); 234 sysctl_createv(clog, 0, NULL, NULL, 235 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 236 CTLTYPE_NODE, "vendor", 237 SYSCTL_DESCR("Vendor specific"), 238 NULL, 0, NULL, 0, 239 CTL_VENDOR, CTL_EOL); 240 sysctl_createv(clog, 0, NULL, NULL, 241 CTLFLAG_PERMANENT, 242 CTLTYPE_NODE, "emul", 243 SYSCTL_DESCR("Emulation settings"), 244 NULL, 0, NULL, 0, 245 CTL_EMUL, CTL_EOL); 246} 247 248/* 249 * this setup routine is a replacement for kern_sysctl() 250 */ 251SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 252{ 253 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 254 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 255 extern int dumponpanic; /* defined in kern/subr_prf.c */ 256 257 sysctl_createv(clog, 0, NULL, NULL, 258 CTLFLAG_PERMANENT, 259 CTLTYPE_NODE, "kern", NULL, 260 NULL, 0, NULL, 0, 261 CTL_KERN, CTL_EOL); 262 263 sysctl_createv(clog, 0, NULL, NULL, 264 CTLFLAG_PERMANENT, 265 CTLTYPE_STRING, "ostype", 266 SYSCTL_DESCR("Operating system type"), 267 NULL, 0, &ostype, 0, 268 CTL_KERN, KERN_OSTYPE, CTL_EOL); 269 sysctl_createv(clog, 0, NULL, NULL, 270 CTLFLAG_PERMANENT, 271 CTLTYPE_STRING, "osrelease", 272 SYSCTL_DESCR("Operating system release"), 273 NULL, 0, &osrelease, 0, 274 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 275 sysctl_createv(clog, 0, NULL, NULL, 276 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 277 CTLTYPE_INT, "osrevision", 278 SYSCTL_DESCR("Operating system revision"), 279 NULL, __NetBSD_Version__, NULL, 0, 280 CTL_KERN, KERN_OSREV, CTL_EOL); 281 sysctl_createv(clog, 0, NULL, NULL, 282 CTLFLAG_PERMANENT, 283 CTLTYPE_STRING, "version", 284 SYSCTL_DESCR("Kernel version"), 285 NULL, 0, &version, 0, 286 CTL_KERN, KERN_VERSION, CTL_EOL); 287 sysctl_createv(clog, 0, NULL, NULL, 288 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 289 CTLTYPE_INT, "maxvnodes", 290 SYSCTL_DESCR("Maximum number of vnodes"), 291 sysctl_kern_maxvnodes, 0, NULL, 0, 292 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 293 sysctl_createv(clog, 0, NULL, NULL, 294 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 295 CTLTYPE_INT, "maxproc", 296 SYSCTL_DESCR("Maximum number of simultaneous processes"), 297 sysctl_kern_maxproc, 0, NULL, 0, 298 CTL_KERN, KERN_MAXPROC, CTL_EOL); 299 sysctl_createv(clog, 0, NULL, NULL, 300 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 301 CTLTYPE_INT, "maxfiles", 302 SYSCTL_DESCR("Maximum number of open files"), 303 NULL, 0, &maxfiles, 0, 304 CTL_KERN, KERN_MAXFILES, CTL_EOL); 305 sysctl_createv(clog, 0, NULL, NULL, 306 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 307 CTLTYPE_INT, "argmax", 308 SYSCTL_DESCR("Maximum number of bytes of arguments to " 309 "execve(2)"), 310 NULL, ARG_MAX, NULL, 0, 311 CTL_KERN, KERN_ARGMAX, CTL_EOL); 312 sysctl_createv(clog, 0, NULL, NULL, 313 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 314 CTLTYPE_INT, "securelevel", 315 SYSCTL_DESCR("System security level"), 316 sysctl_kern_securelevel, 0, &securelevel, 0, 317 CTL_KERN, KERN_SECURELVL, CTL_EOL); 318 sysctl_createv(clog, 0, NULL, NULL, 319 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 320 CTLTYPE_STRING, "hostname", 321 SYSCTL_DESCR("System hostname"), 322 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 323 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 324 sysctl_createv(clog, 0, NULL, NULL, 325 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 326 CTLTYPE_INT, "hostid", 327 SYSCTL_DESCR("System host ID number"), 328 sysctl_kern_hostid, 0, NULL, 0, 329 CTL_KERN, KERN_HOSTID, CTL_EOL); 330 sysctl_createv(clog, 0, NULL, NULL, 331 CTLFLAG_PERMANENT, 332 CTLTYPE_STRUCT, "clockrate", 333 SYSCTL_DESCR("Kernel clock rates"), 334 sysctl_kern_clockrate, 0, NULL, 335 sizeof(struct clockinfo), 336 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 337 sysctl_createv(clog, 0, NULL, NULL, 338 CTLFLAG_PERMANENT, 339 CTLTYPE_STRUCT, "vnode", 340 SYSCTL_DESCR("System vnode table"), 341 sysctl_kern_vnode, 0, NULL, 0, 342 CTL_KERN, KERN_VNODE, CTL_EOL); 343 sysctl_createv(clog, 0, NULL, NULL, 344 CTLFLAG_PERMANENT, 345 CTLTYPE_STRUCT, "file", 346 SYSCTL_DESCR("System open file table"), 347 sysctl_kern_file, 0, NULL, 0, 348 CTL_KERN, KERN_FILE, CTL_EOL); 349#ifndef GPROF 350 sysctl_createv(clog, 0, NULL, NULL, 351 CTLFLAG_PERMANENT, 352 CTLTYPE_NODE, "profiling", 353 SYSCTL_DESCR("Profiling information (not available)"), 354 sysctl_notavail, 0, NULL, 0, 355 CTL_KERN, KERN_PROF, CTL_EOL); 356#endif 357 sysctl_createv(clog, 0, NULL, NULL, 358 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 359 CTLTYPE_INT, "posix1version", 360 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 361 "with which the operating system attempts " 362 "to comply"), 363 NULL, _POSIX_VERSION, NULL, 0, 364 CTL_KERN, KERN_POSIX1, CTL_EOL); 365 sysctl_createv(clog, 0, NULL, NULL, 366 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 367 CTLTYPE_INT, "ngroups", 368 SYSCTL_DESCR("Maximum number of supplemental groups"), 369 NULL, NGROUPS_MAX, NULL, 0, 370 CTL_KERN, KERN_NGROUPS, CTL_EOL); 371 sysctl_createv(clog, 0, NULL, NULL, 372 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 373 CTLTYPE_INT, "job_control", 374 SYSCTL_DESCR("Whether job control is available"), 375 NULL, 1, NULL, 0, 376 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 377 sysctl_createv(clog, 0, NULL, NULL, 378 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 379 CTLTYPE_INT, "saved_ids", 380 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 381 "available"), NULL, 382#ifdef _POSIX_SAVED_IDS 383 1, 384#else /* _POSIX_SAVED_IDS */ 385 0, 386#endif /* _POSIX_SAVED_IDS */ 387 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 388 sysctl_createv(clog, 0, NULL, NULL, 389 CTLFLAG_PERMANENT, 390 CTLTYPE_STRUCT, "boottime", 391 SYSCTL_DESCR("System boot time"), 392 NULL, 0, &boottime, sizeof(boottime), 393 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 394 sysctl_createv(clog, 0, NULL, NULL, 395 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 396 CTLTYPE_STRING, "domainname", 397 SYSCTL_DESCR("YP domain name"), 398 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 399 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 400 sysctl_createv(clog, 0, NULL, NULL, 401 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 402 CTLTYPE_INT, "maxpartitions", 403 SYSCTL_DESCR("Maximum number of partitions allowed per " 404 "disk"), 405 NULL, MAXPARTITIONS, NULL, 0, 406 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 407 sysctl_createv(clog, 0, NULL, NULL, 408 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 409 CTLTYPE_INT, "rawpartition", 410 SYSCTL_DESCR("Raw partition of a disk"), 411 NULL, RAW_PART, NULL, 0, 412 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 413 sysctl_createv(clog, 0, NULL, NULL, 414 CTLFLAG_PERMANENT, 415 CTLTYPE_STRUCT, "timex", NULL, 416 sysctl_notavail, 0, NULL, 0, 417 CTL_KERN, KERN_TIMEX, CTL_EOL); 418 sysctl_createv(clog, 0, NULL, NULL, 419 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 420 CTLTYPE_INT, "autonicetime", 421 SYSCTL_DESCR("CPU clock seconds before non-root " 422 "process priority is lowered"), 423 sysctl_kern_autonice, 0, &autonicetime, 0, 424 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 425 sysctl_createv(clog, 0, NULL, NULL, 426 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 427 CTLTYPE_INT, "autoniceval", 428 SYSCTL_DESCR("Automatic reniced non-root process " 429 "priority"), 430 sysctl_kern_autonice, 0, &autoniceval, 0, 431 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 432 sysctl_createv(clog, 0, NULL, NULL, 433 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 434 CTLTYPE_INT, "rtc_offset", 435 SYSCTL_DESCR("Offset of real time clock from UTC in " 436 "minutes"), 437 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 438 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 439 sysctl_createv(clog, 0, NULL, NULL, 440 CTLFLAG_PERMANENT, 441 CTLTYPE_STRING, "root_device", 442 SYSCTL_DESCR("Name of the root device"), 443 sysctl_root_device, 0, NULL, 0, 444 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 445 sysctl_createv(clog, 0, NULL, NULL, 446 CTLFLAG_PERMANENT, 447 CTLTYPE_INT, "msgbufsize", 448 SYSCTL_DESCR("Size of the kernel message buffer"), 449 sysctl_msgbuf, 0, NULL, 0, 450 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 451 sysctl_createv(clog, 0, NULL, NULL, 452 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 453 CTLTYPE_INT, "fsync", 454 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 455 "Synchronization Option is available on " 456 "this system"), 457 NULL, 1, NULL, 0, 458 CTL_KERN, KERN_FSYNC, CTL_EOL); 459 sysctl_createv(clog, 0, NULL, NULL, 460 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 461 CTLTYPE_INT, "sysvmsg", 462 SYSCTL_DESCR("System V style message support available"), 463 NULL, 464#ifdef SYSVMSG 465 1, 466#else /* SYSVMSG */ 467 0, 468#endif /* SYSVMSG */ 469 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 470 sysctl_createv(clog, 0, NULL, NULL, 471 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 472 CTLTYPE_INT, "sysvsem", 473 SYSCTL_DESCR("System V style semaphore support " 474 "available"), NULL, 475#ifdef SYSVSEM 476 1, 477#else /* SYSVSEM */ 478 0, 479#endif /* SYSVSEM */ 480 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 481 sysctl_createv(clog, 0, NULL, NULL, 482 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 483 CTLTYPE_INT, "sysvshm", 484 SYSCTL_DESCR("System V style shared memory support " 485 "available"), NULL, 486#ifdef SYSVSHM 487 1, 488#else /* SYSVSHM */ 489 0, 490#endif /* SYSVSHM */ 491 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 492 sysctl_createv(clog, 0, NULL, NULL, 493 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 494 CTLTYPE_INT, "synchronized_io", 495 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 496 "I/O Option is available on this system"), 497 NULL, 1, NULL, 0, 498 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 499 sysctl_createv(clog, 0, NULL, NULL, 500 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 501 CTLTYPE_INT, "iov_max", 502 SYSCTL_DESCR("Maximum number of iovec structures per " 503 "process"), 504 NULL, IOV_MAX, NULL, 0, 505 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 506 sysctl_createv(clog, 0, NULL, NULL, 507 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 508 CTLTYPE_INT, "mapped_files", 509 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 510 "Files Option is available on this system"), 511 NULL, 1, NULL, 0, 512 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 513 sysctl_createv(clog, 0, NULL, NULL, 514 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 515 CTLTYPE_INT, "memlock", 516 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 517 "Locking Option is available on this " 518 "system"), 519 NULL, 1, NULL, 0, 520 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 521 sysctl_createv(clog, 0, NULL, NULL, 522 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 523 CTLTYPE_INT, "memlock_range", 524 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 525 "Locking Option is available on this " 526 "system"), 527 NULL, 1, NULL, 0, 528 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 529 sysctl_createv(clog, 0, NULL, NULL, 530 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 531 CTLTYPE_INT, "memory_protection", 532 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 533 "Protection Option is available on this " 534 "system"), 535 NULL, 1, NULL, 0, 536 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 537 sysctl_createv(clog, 0, NULL, NULL, 538 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 539 CTLTYPE_INT, "login_name_max", 540 SYSCTL_DESCR("Maximum login name length"), 541 NULL, LOGIN_NAME_MAX, NULL, 0, 542 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 543 sysctl_createv(clog, 0, NULL, NULL, 544 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 545 CTLTYPE_STRING, "defcorename", 546 SYSCTL_DESCR("Default core file name"), 547 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 548 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 549 sysctl_createv(clog, 0, NULL, NULL, 550 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 551 CTLTYPE_INT, "logsigexit", 552 SYSCTL_DESCR("Log process exit when caused by signals"), 553 NULL, 0, &kern_logsigexit, 0, 554 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 555 sysctl_createv(clog, 0, NULL, NULL, 556 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 557 CTLTYPE_INT, "fscale", 558 SYSCTL_DESCR("Kernel fixed-point scale factor"), 559 NULL, FSCALE, NULL, 0, 560 CTL_KERN, KERN_FSCALE, CTL_EOL); 561 sysctl_createv(clog, 0, NULL, NULL, 562 CTLFLAG_PERMANENT, 563 CTLTYPE_INT, "ccpu", 564 SYSCTL_DESCR("Scheduler exponential decay value"), 565 NULL, 0, &ccpu, 0, 566 CTL_KERN, KERN_CCPU, CTL_EOL); 567 sysctl_createv(clog, 0, NULL, NULL, 568 CTLFLAG_PERMANENT, 569 CTLTYPE_STRUCT, "cp_time", 570 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 571 sysctl_kern_cptime, 0, NULL, 0, 572 CTL_KERN, KERN_CP_TIME, CTL_EOL); 573#if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 574 sysctl_createv(clog, 0, NULL, NULL, 575 CTLFLAG_PERMANENT, 576 CTLTYPE_STRUCT, "sysvipc_info", 577 SYSCTL_DESCR("System V style IPC information"), 578 sysctl_kern_sysvipc, 0, NULL, 0, 579 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 580#endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 581 sysctl_createv(clog, 0, NULL, NULL, 582 CTLFLAG_PERMANENT, 583 CTLTYPE_INT, "msgbuf", 584 SYSCTL_DESCR("Kernel message buffer"), 585 sysctl_msgbuf, 0, NULL, 0, 586 CTL_KERN, KERN_MSGBUF, CTL_EOL); 587 sysctl_createv(clog, 0, NULL, NULL, 588 CTLFLAG_PERMANENT, 589 CTLTYPE_STRUCT, "consdev", 590 SYSCTL_DESCR("Console device"), 591 sysctl_consdev, 0, NULL, sizeof(dev_t), 592 CTL_KERN, KERN_CONSDEV, CTL_EOL); 593#if NPTY > 0 594 sysctl_createv(clog, 0, NULL, NULL, 595 CTLFLAG_PERMANENT, 596 CTLTYPE_INT, "maxptys", 597 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 598 sysctl_kern_maxptys, 0, NULL, 0, 599 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 600#endif /* NPTY > 0 */ 601 sysctl_createv(clog, 0, NULL, NULL, 602 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 603 CTLTYPE_INT, "maxphys", 604 SYSCTL_DESCR("Maximum raw I/O transfer size"), 605 NULL, MAXPHYS, NULL, 0, 606 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 607 sysctl_createv(clog, 0, NULL, NULL, 608 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 609 CTLTYPE_INT, "sbmax", 610 SYSCTL_DESCR("Maximum socket buffer size"), 611 sysctl_kern_sbmax, 0, NULL, 0, 612 CTL_KERN, KERN_SBMAX, CTL_EOL); 613 sysctl_createv(clog, 0, NULL, NULL, 614 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 615 CTLTYPE_INT, "monotonic_clock", 616 SYSCTL_DESCR("Implementation version of the POSIX " 617 "1003.1b Monotonic Clock Option"), 618 /* XXX _POSIX_VERSION */ 619 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 620 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 621 sysctl_createv(clog, 0, NULL, NULL, 622 CTLFLAG_PERMANENT, 623 CTLTYPE_INT, "urandom", 624 SYSCTL_DESCR("Random integer value"), 625 sysctl_kern_urnd, 0, NULL, 0, 626 CTL_KERN, KERN_URND, CTL_EOL); 627 sysctl_createv(clog, 0, NULL, NULL, 628 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 629 CTLTYPE_INT, "labelsector", 630 SYSCTL_DESCR("Sector number containing the disklabel"), 631 NULL, LABELSECTOR, NULL, 0, 632 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 633 sysctl_createv(clog, 0, NULL, NULL, 634 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 635 CTLTYPE_INT, "labeloffset", 636 SYSCTL_DESCR("Offset of the disklabel within the " 637 "sector"), 638 NULL, LABELOFFSET, NULL, 0, 639 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 640 sysctl_createv(clog, 0, NULL, NULL, 641 CTLFLAG_PERMANENT, 642 CTLTYPE_NODE, "lwp", 643 SYSCTL_DESCR("System-wide LWP information"), 644 sysctl_kern_lwp, 0, NULL, 0, 645 CTL_KERN, KERN_LWP, CTL_EOL); 646 sysctl_createv(clog, 0, NULL, NULL, 647 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 648 CTLTYPE_INT, "forkfsleep", 649 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 650 "to process limits"), 651 sysctl_kern_forkfsleep, 0, NULL, 0, 652 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 653 sysctl_createv(clog, 0, NULL, NULL, 654 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 655 CTLTYPE_INT, "posix_threads", 656 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 657 "Threads option to which the system " 658 "attempts to conform"), 659 /* XXX _POSIX_VERSION */ 660 NULL, _POSIX_THREADS, NULL, 0, 661 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 662 sysctl_createv(clog, 0, NULL, NULL, 663 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 664 CTLTYPE_INT, "posix_semaphores", 665 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 666 "Semaphores option to which the system " 667 "attempts to conform"), NULL, 668#ifdef P1003_1B_SEMAPHORE 669 200112, 670#else /* P1003_1B_SEMAPHORE */ 671 0, 672#endif /* P1003_1B_SEMAPHORE */ 673 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 674 sysctl_createv(clog, 0, NULL, NULL, 675 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 676 CTLTYPE_INT, "posix_barriers", 677 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 678 "Barriers option to which the system " 679 "attempts to conform"), 680 /* XXX _POSIX_VERSION */ 681 NULL, _POSIX_BARRIERS, NULL, 0, 682 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 683 sysctl_createv(clog, 0, NULL, NULL, 684 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 685 CTLTYPE_INT, "posix_timers", 686 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 687 "Timers option to which the system " 688 "attempts to conform"), 689 /* XXX _POSIX_VERSION */ 690 NULL, _POSIX_TIMERS, NULL, 0, 691 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 692 sysctl_createv(clog, 0, NULL, NULL, 693 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 694 CTLTYPE_INT, "posix_spin_locks", 695 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 696 "Locks option to which the system attempts " 697 "to conform"), 698 /* XXX _POSIX_VERSION */ 699 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 700 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 701 sysctl_createv(clog, 0, NULL, NULL, 702 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 703 CTLTYPE_INT, "posix_reader_writer_locks", 704 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 705 "Read-Write Locks option to which the " 706 "system attempts to conform"), 707 /* XXX _POSIX_VERSION */ 708 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 709 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 710 sysctl_createv(clog, 0, NULL, NULL, 711 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 712 CTLTYPE_INT, "dump_on_panic", 713 SYSCTL_DESCR("Perform a crash dump on system panic"), 714 NULL, 0, &dumponpanic, 0, 715 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 716 sysctl_createv(clog, 0, NULL, NULL, 717 CTLFLAG_PERMANENT, 718 CTLTYPE_INT, "root_partition", 719 SYSCTL_DESCR("Root partition on the root device"), 720 sysctl_kern_root_partition, 0, NULL, 0, 721 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 722 sysctl_createv(clog, 0, NULL, NULL, 723 CTLFLAG_PERMANENT, 724 CTLTYPE_STRUCT, "drivers", 725 SYSCTL_DESCR("List of all drivers with block and " 726 "character device numbers"), 727 sysctl_kern_drivers, 0, NULL, 0, 728 CTL_KERN, KERN_DRIVERS, CTL_EOL); 729 sysctl_createv(clog, 0, NULL, NULL, 730 CTLFLAG_PERMANENT, 731 CTLTYPE_STRUCT, "file2", 732 SYSCTL_DESCR("System open file table"), 733 sysctl_kern_file2, 0, NULL, 0, 734 CTL_KERN, KERN_FILE2, CTL_EOL); 735#ifdef VERIFIED_EXEC 736 sysctl_createv(clog, 0, NULL, NULL, 737 CTLFLAG_PERMANENT, 738 CTLTYPE_NODE, "veriexec", 739 SYSCTL_DESCR("Verified Exec"), 740 NULL, 0, NULL, 0, 741 CTL_KERN, KERN_VERIEXEC, CTL_EOL); 742 sysctl_createv(clog, 0, NULL, NULL, 743 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 744 CTLTYPE_INT, "verbose", 745 SYSCTL_DESCR("Verified Exec verbose level"), 746 NULL, 0, &veriexec_verbose, 0, 747 CTL_KERN, KERN_VERIEXEC, VERIEXEC_VERBOSE, 748 CTL_EOL); 749 sysctl_createv(clog, 0, NULL, NULL, 750 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 751 CTLTYPE_INT, "strict", 752 SYSCTL_DESCR("Verified Exec strict level"), 753 sysctl_kern_veriexec, 0, NULL, 0, 754 CTL_KERN, KERN_VERIEXEC, VERIEXEC_STRICT, CTL_EOL); 755 sysctl_createv(clog, 0, NULL, NULL, 756 CTLFLAG_PERMANENT, 757 CTLTYPE_STRING, "algorithms", 758 SYSCTL_DESCR("Verified Exec supported hashing " 759 "algorithms"), 760 sysctl_kern_veriexec, 0, NULL, 0, 761 CTL_KERN, KERN_VERIEXEC, VERIEXEC_ALGORITHMS, CTL_EOL); 762 sysctl_createv(clog, 0, NULL, &veriexec_count_node, 763 CTLFLAG_PERMANENT, 764 CTLTYPE_NODE, "count", 765 SYSCTL_DESCR("Number of fingerprints on device(s)"), 766 NULL, 0, NULL, 0, 767 CTL_KERN, KERN_VERIEXEC, VERIEXEC_COUNT, CTL_EOL); 768#endif /* VERIFIED_EXEC */ 769} 770 771SYSCTL_SETUP(sysctl_kern_proc_setup, 772 "sysctl kern.proc/proc2/proc_args subtree setup") 773{ 774 775 sysctl_createv(clog, 0, NULL, NULL, 776 CTLFLAG_PERMANENT, 777 CTLTYPE_NODE, "kern", NULL, 778 NULL, 0, NULL, 0, 779 CTL_KERN, CTL_EOL); 780 781 sysctl_createv(clog, 0, NULL, NULL, 782 CTLFLAG_PERMANENT, 783 CTLTYPE_NODE, "proc", 784 SYSCTL_DESCR("System-wide process information"), 785 sysctl_doeproc, 0, NULL, 0, 786 CTL_KERN, KERN_PROC, CTL_EOL); 787 sysctl_createv(clog, 0, NULL, NULL, 788 CTLFLAG_PERMANENT, 789 CTLTYPE_NODE, "proc2", 790 SYSCTL_DESCR("Machine-independent process information"), 791 sysctl_doeproc, 0, NULL, 0, 792 CTL_KERN, KERN_PROC2, CTL_EOL); 793 sysctl_createv(clog, 0, NULL, NULL, 794 CTLFLAG_PERMANENT, 795 CTLTYPE_NODE, "proc_args", 796 SYSCTL_DESCR("Process argument information"), 797 sysctl_kern_proc_args, 0, NULL, 0, 798 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 799 800 /* 801 "nodes" under these: 802 803 KERN_PROC_ALL 804 KERN_PROC_PID pid 805 KERN_PROC_PGRP pgrp 806 KERN_PROC_SESSION sess 807 KERN_PROC_TTY tty 808 KERN_PROC_UID uid 809 KERN_PROC_RUID uid 810 KERN_PROC_GID gid 811 KERN_PROC_RGID gid 812 813 all in all, probably not worth the effort... 814 */ 815} 816 817SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 818{ 819 u_int u; 820 u_quad_t q; 821 822 sysctl_createv(clog, 0, NULL, NULL, 823 CTLFLAG_PERMANENT, 824 CTLTYPE_NODE, "hw", NULL, 825 NULL, 0, NULL, 0, 826 CTL_HW, CTL_EOL); 827 828 sysctl_createv(clog, 0, NULL, NULL, 829 CTLFLAG_PERMANENT, 830 CTLTYPE_STRING, "machine", 831 SYSCTL_DESCR("Machine class"), 832 NULL, 0, machine, 0, 833 CTL_HW, HW_MACHINE, CTL_EOL); 834 sysctl_createv(clog, 0, NULL, NULL, 835 CTLFLAG_PERMANENT, 836 CTLTYPE_STRING, "model", 837 SYSCTL_DESCR("Machine model"), 838 NULL, 0, cpu_model, 0, 839 CTL_HW, HW_MODEL, CTL_EOL); 840 sysctl_createv(clog, 0, NULL, NULL, 841 CTLFLAG_PERMANENT, 842 CTLTYPE_INT, "ncpu", 843 SYSCTL_DESCR("Number of active CPUs"), 844 sysctl_hw_ncpu, 0, NULL, 0, 845 CTL_HW, HW_NCPU, CTL_EOL); 846 sysctl_createv(clog, 0, NULL, NULL, 847 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 848 CTLTYPE_INT, "byteorder", 849 SYSCTL_DESCR("System byte order"), 850 NULL, BYTE_ORDER, NULL, 0, 851 CTL_HW, HW_BYTEORDER, CTL_EOL); 852 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 853 UINT_MAX : physmem * PAGE_SIZE; 854 sysctl_createv(clog, 0, NULL, NULL, 855 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 856 CTLTYPE_INT, "physmem", 857 SYSCTL_DESCR("Bytes of physical memory"), 858 NULL, u, NULL, 0, 859 CTL_HW, HW_PHYSMEM, CTL_EOL); 860 sysctl_createv(clog, 0, NULL, NULL, 861 CTLFLAG_PERMANENT, 862 CTLTYPE_INT, "usermem", 863 SYSCTL_DESCR("Bytes of non-kernel memory"), 864 sysctl_hw_usermem, 0, NULL, 0, 865 CTL_HW, HW_USERMEM, CTL_EOL); 866 sysctl_createv(clog, 0, NULL, NULL, 867 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 868 CTLTYPE_INT, "pagesize", 869 SYSCTL_DESCR("Software page size"), 870 NULL, PAGE_SIZE, NULL, 0, 871 CTL_HW, HW_PAGESIZE, CTL_EOL); 872 sysctl_createv(clog, 0, NULL, NULL, 873 CTLFLAG_PERMANENT, 874 CTLTYPE_STRING, "disknames", 875 SYSCTL_DESCR("List of disk devices present"), 876 sysctl_hw_disknames, 0, NULL, 0, 877 CTL_HW, HW_DISKNAMES, CTL_EOL); 878 sysctl_createv(clog, 0, NULL, NULL, 879 CTLFLAG_PERMANENT, 880 CTLTYPE_STRUCT, "diskstats", 881 SYSCTL_DESCR("Statistics on disk operation"), 882 sysctl_hw_diskstats, 0, NULL, 0, 883 CTL_HW, HW_DISKSTATS, CTL_EOL); 884 sysctl_createv(clog, 0, NULL, NULL, 885 CTLFLAG_PERMANENT, 886 CTLTYPE_STRING, "machine_arch", 887 SYSCTL_DESCR("Machine CPU class"), 888 NULL, 0, machine_arch, 0, 889 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 890 sysctl_createv(clog, 0, NULL, NULL, 891 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 892 CTLTYPE_INT, "alignbytes", 893 SYSCTL_DESCR("Alignment constraint for all possible " 894 "data types"), 895 NULL, ALIGNBYTES, NULL, 0, 896 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 897 sysctl_createv(clog, 0, NULL, NULL, 898 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 899 CTLTYPE_STRING, "cnmagic", 900 SYSCTL_DESCR("Console magic key sequence"), 901 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 902 CTL_HW, HW_CNMAGIC, CTL_EOL); 903 q = (u_quad_t)physmem * PAGE_SIZE; 904 sysctl_createv(clog, 0, NULL, NULL, 905 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 906 CTLTYPE_QUAD, "physmem64", 907 SYSCTL_DESCR("Bytes of physical memory"), 908 NULL, q, NULL, 0, 909 CTL_HW, HW_PHYSMEM64, CTL_EOL); 910 sysctl_createv(clog, 0, NULL, NULL, 911 CTLFLAG_PERMANENT, 912 CTLTYPE_QUAD, "usermem64", 913 SYSCTL_DESCR("Bytes of non-kernel memory"), 914 sysctl_hw_usermem, 0, NULL, 0, 915 CTL_HW, HW_USERMEM64, CTL_EOL); 916} 917 918#ifdef DEBUG 919/* 920 * Debugging related system variables. 921 */ 922struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 923struct ctldebug debug5, debug6, debug7, debug8, debug9; 924struct ctldebug debug10, debug11, debug12, debug13, debug14; 925struct ctldebug debug15, debug16, debug17, debug18, debug19; 926static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 927 &debug0, &debug1, &debug2, &debug3, &debug4, 928 &debug5, &debug6, &debug7, &debug8, &debug9, 929 &debug10, &debug11, &debug12, &debug13, &debug14, 930 &debug15, &debug16, &debug17, &debug18, &debug19, 931}; 932 933/* 934 * this setup routine is a replacement for debug_sysctl() 935 * 936 * note that it creates several nodes per defined debug variable 937 */ 938SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 939{ 940 struct ctldebug *cdp; 941 char nodename[20]; 942 int i; 943 944 /* 945 * two ways here: 946 * 947 * the "old" way (debug.name -> value) which was emulated by 948 * the sysctl(8) binary 949 * 950 * the new way, which the sysctl(8) binary was actually using 951 952 node debug 953 node debug.0 954 string debug.0.name 955 int debug.0.value 956 int debug.name 957 958 */ 959 960 sysctl_createv(clog, 0, NULL, NULL, 961 CTLFLAG_PERMANENT, 962 CTLTYPE_NODE, "debug", NULL, 963 NULL, 0, NULL, 0, 964 CTL_DEBUG, CTL_EOL); 965 966 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 967 cdp = debugvars[i]; 968 if (cdp->debugname == NULL || cdp->debugvar == NULL) 969 continue; 970 971 snprintf(nodename, sizeof(nodename), "debug%d", i); 972 sysctl_createv(clog, 0, NULL, NULL, 973 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 974 CTLTYPE_NODE, nodename, NULL, 975 NULL, 0, NULL, 0, 976 CTL_DEBUG, i, CTL_EOL); 977 sysctl_createv(clog, 0, NULL, NULL, 978 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 979 CTLTYPE_STRING, "name", NULL, 980 /*XXXUNCONST*/ 981 NULL, 0, __UNCONST(cdp->debugname), 0, 982 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 983 sysctl_createv(clog, 0, NULL, NULL, 984 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 985 CTLTYPE_INT, "value", NULL, 986 NULL, 0, cdp->debugvar, 0, 987 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 988 sysctl_createv(clog, 0, NULL, NULL, 989 CTLFLAG_PERMANENT, 990 CTLTYPE_INT, cdp->debugname, NULL, 991 NULL, 0, cdp->debugvar, 0, 992 CTL_DEBUG, CTL_CREATE, CTL_EOL); 993 } 994} 995#endif /* DEBUG */ 996 997/* 998 * ******************************************************************** 999 * section 2: private node-specific helper routines. 1000 * ******************************************************************** 1001 */ 1002 1003/* 1004 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1005 * new value is lower than desiredvnodes and then calls reinit 1006 * routines that needs to adjust to the new value. 1007 */ 1008static int 1009sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1010{ 1011 int error, new_vnodes, old_vnodes; 1012 struct sysctlnode node; 1013 1014 new_vnodes = desiredvnodes; 1015 node = *rnode; 1016 node.sysctl_data = &new_vnodes; 1017 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1018 if (error || newp == NULL) 1019 return (error); 1020 1021 old_vnodes = desiredvnodes; 1022 desiredvnodes = new_vnodes; 1023 if (new_vnodes < old_vnodes) { 1024 error = vfs_drainvnodes(new_vnodes, l->l_proc); 1025 if (error) { 1026 desiredvnodes = old_vnodes; 1027 return (error); 1028 } 1029 } 1030 vfs_reinit(); 1031 nchreinit(); 1032 1033 return (0); 1034} 1035 1036/* 1037 * sysctl helper routine for rtc_offset - set time after changes 1038 */ 1039static int 1040sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1041{ 1042 struct timeval tv, delta; 1043 int s, error, new_rtc_offset; 1044 struct sysctlnode node; 1045 1046 new_rtc_offset = rtc_offset; 1047 node = *rnode; 1048 node.sysctl_data = &new_rtc_offset; 1049 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1050 if (error || newp == NULL) 1051 return (error); 1052 1053 if (securelevel > 0) 1054 return (EPERM); 1055 if (rtc_offset == new_rtc_offset) 1056 return (0); 1057 1058 /* if we change the offset, adjust the time */ 1059 s = splclock(); 1060 tv = time; 1061 splx(s); 1062 delta.tv_sec = 60*(new_rtc_offset - rtc_offset); 1063 delta.tv_usec = 0; 1064 timeradd(&tv, &delta, &tv); 1065 rtc_offset = new_rtc_offset; 1066 settime(&tv); 1067 1068 return (0); 1069} 1070 1071/* 1072 * sysctl helper routine for kern.maxvnodes. ensures that the new 1073 * values are not too low or too high. 1074 */ 1075static int 1076sysctl_kern_maxproc(SYSCTLFN_ARGS) 1077{ 1078 int error, nmaxproc; 1079 struct sysctlnode node; 1080 1081 nmaxproc = maxproc; 1082 node = *rnode; 1083 node.sysctl_data = &nmaxproc; 1084 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1085 if (error || newp == NULL) 1086 return (error); 1087 1088 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1089 return (EINVAL); 1090#ifdef __HAVE_CPU_MAXPROC 1091 if (nmaxproc > cpu_maxproc()) 1092 return (EINVAL); 1093#endif 1094 maxproc = nmaxproc; 1095 1096 return (0); 1097} 1098 1099/* 1100 * sysctl helper routine for kern.securelevel. ensures that the value 1101 * only rises unless the caller has pid 1 (assumed to be init). 1102 */ 1103static int 1104sysctl_kern_securelevel(SYSCTLFN_ARGS) 1105{ 1106 int newsecurelevel, error; 1107 struct sysctlnode node; 1108 1109 newsecurelevel = securelevel; 1110 node = *rnode; 1111 node.sysctl_data = &newsecurelevel; 1112 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1113 if (error || newp == NULL) 1114 return (error); 1115 1116 if (newsecurelevel < securelevel && l && l->l_proc->p_pid != 1) 1117 return (EPERM); 1118 securelevel = newsecurelevel; 1119 1120 return (error); 1121} 1122 1123/* 1124 * sysctl helper function for kern.hostid. the hostid is a long, but 1125 * we export it as an int, so we need to give it a little help. 1126 */ 1127static int 1128sysctl_kern_hostid(SYSCTLFN_ARGS) 1129{ 1130 int error, inthostid; 1131 struct sysctlnode node; 1132 1133 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1134 node = *rnode; 1135 node.sysctl_data = &inthostid; 1136 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1137 if (error || newp == NULL) 1138 return (error); 1139 1140 hostid = (unsigned)inthostid; 1141 1142 return (0); 1143} 1144 1145/* 1146 * sysctl helper function for kern.hostname and kern.domainnname. 1147 * resets the relevant recorded length when the underlying name is 1148 * changed. 1149 */ 1150static int 1151sysctl_setlen(SYSCTLFN_ARGS) 1152{ 1153 int error; 1154 1155 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1156 if (error || newp == NULL) 1157 return (error); 1158 1159 switch (rnode->sysctl_num) { 1160 case KERN_HOSTNAME: 1161 hostnamelen = strlen((const char*)rnode->sysctl_data); 1162 break; 1163 case KERN_DOMAINNAME: 1164 domainnamelen = strlen((const char*)rnode->sysctl_data); 1165 break; 1166 } 1167 1168 return (0); 1169} 1170 1171/* 1172 * sysctl helper routine for kern.clockrate. assembles a struct on 1173 * the fly to be returned to the caller. 1174 */ 1175static int 1176sysctl_kern_clockrate(SYSCTLFN_ARGS) 1177{ 1178 struct clockinfo clkinfo; 1179 struct sysctlnode node; 1180 1181 clkinfo.tick = tick; 1182 clkinfo.tickadj = tickadj; 1183 clkinfo.hz = hz; 1184 clkinfo.profhz = profhz; 1185 clkinfo.stathz = stathz ? stathz : hz; 1186 1187 node = *rnode; 1188 node.sysctl_data = &clkinfo; 1189 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1190} 1191 1192 1193/* 1194 * sysctl helper routine for kern.file pseudo-subtree. 1195 */ 1196static int 1197sysctl_kern_file(SYSCTLFN_ARGS) 1198{ 1199 int error; 1200 size_t buflen; 1201 struct file *fp; 1202 char *start, *where; 1203 1204 start = where = oldp; 1205 buflen = *oldlenp; 1206 if (where == NULL) { 1207 /* 1208 * overestimate by 10 files 1209 */ 1210 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1211 return (0); 1212 } 1213 1214 /* 1215 * first copyout filehead 1216 */ 1217 if (buflen < sizeof(filehead)) { 1218 *oldlenp = 0; 1219 return (0); 1220 } 1221 error = copyout(&filehead, where, sizeof(filehead)); 1222 if (error) 1223 return (error); 1224 buflen -= sizeof(filehead); 1225 where += sizeof(filehead); 1226 1227 /* 1228 * followed by an array of file structures 1229 */ 1230 LIST_FOREACH(fp, &filehead, f_list) { 1231 if (buflen < sizeof(struct file)) { 1232 *oldlenp = where - start; 1233 return (ENOMEM); 1234 } 1235 error = copyout(fp, where, sizeof(struct file)); 1236 if (error) 1237 return (error); 1238 buflen -= sizeof(struct file); 1239 where += sizeof(struct file); 1240 } 1241 *oldlenp = where - start; 1242 return (0); 1243} 1244 1245/* 1246 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1247 * asserts that the assigned value is in the correct range. 1248 */ 1249static int 1250sysctl_kern_autonice(SYSCTLFN_ARGS) 1251{ 1252 int error, t = 0; 1253 struct sysctlnode node; 1254 1255 node = *rnode; 1256 t = *(int*)node.sysctl_data; 1257 node.sysctl_data = &t; 1258 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1259 if (error || newp == NULL) 1260 return (error); 1261 1262 switch (node.sysctl_num) { 1263 case KERN_AUTONICETIME: 1264 if (t >= 0) 1265 autonicetime = t; 1266 break; 1267 case KERN_AUTONICEVAL: 1268 if (t < PRIO_MIN) 1269 t = PRIO_MIN; 1270 else if (t > PRIO_MAX) 1271 t = PRIO_MAX; 1272 autoniceval = t; 1273 break; 1274 } 1275 1276 return (0); 1277} 1278 1279/* 1280 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1281 * former it merely checks the message buffer is set up. for the latter, 1282 * it also copies out the data if necessary. 1283 */ 1284static int 1285sysctl_msgbuf(SYSCTLFN_ARGS) 1286{ 1287 char *where = oldp; 1288 size_t len, maxlen; 1289 long beg, end; 1290 int error; 1291 1292 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1293 msgbufenabled = 0; 1294 return (ENXIO); 1295 } 1296 1297 switch (rnode->sysctl_num) { 1298 case KERN_MSGBUFSIZE: { 1299 struct sysctlnode node = *rnode; 1300 int msg_bufs = (int)msgbufp->msg_bufs; 1301 node.sysctl_data = &msg_bufs; 1302 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1303 } 1304 case KERN_MSGBUF: 1305 break; 1306 default: 1307 return (EOPNOTSUPP); 1308 } 1309 1310 if (newp != NULL) 1311 return (EPERM); 1312 1313 if (oldp == NULL) { 1314 /* always return full buffer size */ 1315 *oldlenp = msgbufp->msg_bufs; 1316 return (0); 1317 } 1318 1319 error = 0; 1320 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1321 1322 /* 1323 * First, copy from the write pointer to the end of 1324 * message buffer. 1325 */ 1326 beg = msgbufp->msg_bufx; 1327 end = msgbufp->msg_bufs; 1328 while (maxlen > 0) { 1329 len = MIN(end - beg, maxlen); 1330 if (len == 0) 1331 break; 1332 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1333 if (error) 1334 break; 1335 where += len; 1336 maxlen -= len; 1337 1338 /* 1339 * ... then, copy from the beginning of message buffer to 1340 * the write pointer. 1341 */ 1342 beg = 0; 1343 end = msgbufp->msg_bufx; 1344 } 1345 1346 return (error); 1347} 1348 1349/* 1350 * sysctl helper routine for kern.defcorename. in the case of a new 1351 * string being assigned, check that it's not a zero-length string. 1352 * (XXX the check in -current doesn't work, but do we really care?) 1353 */ 1354static int 1355sysctl_kern_defcorename(SYSCTLFN_ARGS) 1356{ 1357 int error; 1358 char newcorename[MAXPATHLEN]; 1359 struct sysctlnode node; 1360 1361 node = *rnode; 1362 node.sysctl_data = &newcorename[0]; 1363 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1364 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1365 if (error || newp == NULL) 1366 return (error); 1367 1368 /* 1369 * when sysctl_lookup() deals with a string, it's guaranteed 1370 * to come back nul terminated. so there. :) 1371 */ 1372 if (strlen(newcorename) == 0) 1373 return (EINVAL); 1374 1375 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1376 1377 return (0); 1378} 1379 1380/* 1381 * sysctl helper routine for kern.cp_time node. adds up cpu time 1382 * across all cpus. 1383 */ 1384static int 1385sysctl_kern_cptime(SYSCTLFN_ARGS) 1386{ 1387 struct sysctlnode node = *rnode; 1388 1389#ifndef MULTIPROCESSOR 1390 1391 if (namelen == 1) { 1392 if (name[0] != 0) 1393 return (ENOENT); 1394 /* 1395 * you're allowed to ask for the zero'th processor 1396 */ 1397 name++; 1398 namelen--; 1399 } 1400 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1401 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1402 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1403 1404#else /* MULTIPROCESSOR */ 1405 1406 u_int64_t *cp_time = NULL; 1407 int error, n = sysctl_ncpus(), i; 1408 struct cpu_info *ci; 1409 CPU_INFO_ITERATOR cii; 1410 1411 /* 1412 * if you specifically pass a buffer that is the size of the 1413 * sum, or if you are probing for the size, you get the "sum" 1414 * of cp_time (and the size thereof) across all processors. 1415 * 1416 * alternately, you can pass an additional mib number and get 1417 * cp_time for that particular processor. 1418 */ 1419 switch (namelen) { 1420 case 0: 1421 if (*oldlenp == sizeof(u_int64_t) * CPUSTATES || oldp == NULL) { 1422 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1423 n = -1; /* SUM */ 1424 } 1425 else { 1426 node.sysctl_size = n * sizeof(u_int64_t) * CPUSTATES; 1427 n = -2; /* ALL */ 1428 } 1429 break; 1430 case 1: 1431 if (name[0] < 0 || name[0] >= n) 1432 return (ENOENT); /* ENOSUCHPROCESSOR */ 1433 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1434 n = name[0]; 1435 /* 1436 * adjust these so that sysctl_lookup() will be happy 1437 */ 1438 name++; 1439 namelen--; 1440 break; 1441 default: 1442 return (EINVAL); 1443 } 1444 1445 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1446 if (cp_time == NULL) 1447 return (ENOMEM); 1448 node.sysctl_data = cp_time; 1449 memset(cp_time, 0, node.sysctl_size); 1450 1451 for (CPU_INFO_FOREACH(cii, ci)) { 1452 if (n <= 0) 1453 for (i = 0; i < CPUSTATES; i++) 1454 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1455 /* 1456 * if a specific processor was requested and we just 1457 * did it, we're done here 1458 */ 1459 if (n == 0) 1460 break; 1461 /* 1462 * if doing "all", skip to next cp_time set for next processor 1463 */ 1464 if (n == -2) 1465 cp_time += CPUSTATES; 1466 /* 1467 * if we're doing a specific processor, we're one 1468 * processor closer 1469 */ 1470 if (n > 0) 1471 n--; 1472 } 1473 1474 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1475 free(node.sysctl_data, M_TEMP); 1476 return (error); 1477 1478#endif /* MULTIPROCESSOR */ 1479} 1480 1481#if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1482/* 1483 * sysctl helper routine for kern.sysvipc_info subtree. 1484 */ 1485 1486#define FILL_PERM(src, dst) do { \ 1487 (dst)._key = (src)._key; \ 1488 (dst).uid = (src).uid; \ 1489 (dst).gid = (src).gid; \ 1490 (dst).cuid = (src).cuid; \ 1491 (dst).cgid = (src).cgid; \ 1492 (dst).mode = (src).mode; \ 1493 (dst)._seq = (src)._seq; \ 1494} while (/*CONSTCOND*/ 0); 1495#define FILL_MSG(src, dst) do { \ 1496 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1497 (dst).msg_qnum = (src).msg_qnum; \ 1498 (dst).msg_qbytes = (src).msg_qbytes; \ 1499 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1500 (dst).msg_lspid = (src).msg_lspid; \ 1501 (dst).msg_lrpid = (src).msg_lrpid; \ 1502 (dst).msg_stime = (src).msg_stime; \ 1503 (dst).msg_rtime = (src).msg_rtime; \ 1504 (dst).msg_ctime = (src).msg_ctime; \ 1505} while (/*CONSTCOND*/ 0) 1506#define FILL_SEM(src, dst) do { \ 1507 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1508 (dst).sem_nsems = (src).sem_nsems; \ 1509 (dst).sem_otime = (src).sem_otime; \ 1510 (dst).sem_ctime = (src).sem_ctime; \ 1511} while (/*CONSTCOND*/ 0) 1512#define FILL_SHM(src, dst) do { \ 1513 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1514 (dst).shm_segsz = (src).shm_segsz; \ 1515 (dst).shm_lpid = (src).shm_lpid; \ 1516 (dst).shm_cpid = (src).shm_cpid; \ 1517 (dst).shm_atime = (src).shm_atime; \ 1518 (dst).shm_dtime = (src).shm_dtime; \ 1519 (dst).shm_ctime = (src).shm_ctime; \ 1520 (dst).shm_nattch = (src).shm_nattch; \ 1521} while (/*CONSTCOND*/ 0) 1522 1523static int 1524sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1525{ 1526 void *where = oldp; 1527 size_t *sizep = oldlenp; 1528#ifdef SYSVMSG 1529 struct msg_sysctl_info *msgsi = NULL; 1530#endif 1531#ifdef SYSVSEM 1532 struct sem_sysctl_info *semsi = NULL; 1533#endif 1534#ifdef SYSVSHM 1535 struct shm_sysctl_info *shmsi = NULL; 1536#endif 1537 size_t infosize, dssize, tsize, buflen; 1538 void *bf = NULL; 1539 char *start; 1540 int32_t nds; 1541 int i, error, ret; 1542 1543 if (namelen != 1) 1544 return (EINVAL); 1545 1546 start = where; 1547 buflen = *sizep; 1548 1549 switch (*name) { 1550 case KERN_SYSVIPC_MSG_INFO: 1551#ifdef SYSVMSG 1552 infosize = sizeof(msgsi->msginfo); 1553 nds = msginfo.msgmni; 1554 dssize = sizeof(msgsi->msgids[0]); 1555 break; 1556#else 1557 return (EINVAL); 1558#endif 1559 case KERN_SYSVIPC_SEM_INFO: 1560#ifdef SYSVSEM 1561 infosize = sizeof(semsi->seminfo); 1562 nds = seminfo.semmni; 1563 dssize = sizeof(semsi->semids[0]); 1564 break; 1565#else 1566 return (EINVAL); 1567#endif 1568 case KERN_SYSVIPC_SHM_INFO: 1569#ifdef SYSVSHM 1570 infosize = sizeof(shmsi->shminfo); 1571 nds = shminfo.shmmni; 1572 dssize = sizeof(shmsi->shmids[0]); 1573 break; 1574#else 1575 return (EINVAL); 1576#endif 1577 default: 1578 return (EINVAL); 1579 } 1580 /* 1581 * Round infosize to 64 bit boundary if requesting more than just 1582 * the info structure or getting the total data size. 1583 */ 1584 if (where == NULL || *sizep > infosize) 1585 infosize = ((infosize + 7) / 8) * 8; 1586 tsize = infosize + nds * dssize; 1587 1588 /* Return just the total size required. */ 1589 if (where == NULL) { 1590 *sizep = tsize; 1591 return (0); 1592 } 1593 1594 /* Not enough room for even the info struct. */ 1595 if (buflen < infosize) { 1596 *sizep = 0; 1597 return (ENOMEM); 1598 } 1599 bf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1600 memset(bf, 0, min(tsize, buflen)); 1601 1602 switch (*name) { 1603#ifdef SYSVMSG 1604 case KERN_SYSVIPC_MSG_INFO: 1605 msgsi = (struct msg_sysctl_info *)bf; 1606 msgsi->msginfo = msginfo; 1607 break; 1608#endif 1609#ifdef SYSVSEM 1610 case KERN_SYSVIPC_SEM_INFO: 1611 semsi = (struct sem_sysctl_info *)bf; 1612 semsi->seminfo = seminfo; 1613 break; 1614#endif 1615#ifdef SYSVSHM 1616 case KERN_SYSVIPC_SHM_INFO: 1617 shmsi = (struct shm_sysctl_info *)bf; 1618 shmsi->shminfo = shminfo; 1619 break; 1620#endif 1621 } 1622 buflen -= infosize; 1623 1624 ret = 0; 1625 if (buflen > 0) { 1626 /* Fill in the IPC data structures. */ 1627 for (i = 0; i < nds; i++) { 1628 if (buflen < dssize) { 1629 ret = ENOMEM; 1630 break; 1631 } 1632 switch (*name) { 1633#ifdef SYSVMSG 1634 case KERN_SYSVIPC_MSG_INFO: 1635 FILL_MSG(msqids[i], msgsi->msgids[i]); 1636 break; 1637#endif 1638#ifdef SYSVSEM 1639 case KERN_SYSVIPC_SEM_INFO: 1640 FILL_SEM(sema[i], semsi->semids[i]); 1641 break; 1642#endif 1643#ifdef SYSVSHM 1644 case KERN_SYSVIPC_SHM_INFO: 1645 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1646 break; 1647#endif 1648 } 1649 buflen -= dssize; 1650 } 1651 } 1652 *sizep -= buflen; 1653 error = copyout(bf, start, *sizep); 1654 /* If copyout succeeded, use return code set earlier. */ 1655 if (error == 0) 1656 error = ret; 1657 if (bf) 1658 free(bf, M_TEMP); 1659 return (error); 1660} 1661 1662#undef FILL_PERM 1663#undef FILL_MSG 1664#undef FILL_SEM 1665#undef FILL_SHM 1666 1667#endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1668 1669#if NPTY > 0 1670/* 1671 * sysctl helper routine for kern.maxptys. ensures that any new value 1672 * is acceptable to the pty subsystem. 1673 */ 1674static int 1675sysctl_kern_maxptys(SYSCTLFN_ARGS) 1676{ 1677 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1678 int error, xmax; 1679 struct sysctlnode node; 1680 1681 /* get current value of maxptys */ 1682 xmax = pty_maxptys(0, 0); 1683 1684 node = *rnode; 1685 node.sysctl_data = &xmax; 1686 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1687 if (error || newp == NULL) 1688 return (error); 1689 1690 if (xmax != pty_maxptys(xmax, 1)) 1691 return (EINVAL); 1692 1693 return (0); 1694} 1695#endif /* NPTY > 0 */ 1696 1697/* 1698 * sysctl helper routine for kern.sbmax. basically just ensures that 1699 * any new value is not too small. 1700 */ 1701static int 1702sysctl_kern_sbmax(SYSCTLFN_ARGS) 1703{ 1704 int error, new_sbmax; 1705 struct sysctlnode node; 1706 1707 new_sbmax = sb_max; 1708 node = *rnode; 1709 node.sysctl_data = &new_sbmax; 1710 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1711 if (error || newp == NULL) 1712 return (error); 1713 1714 error = sb_max_set(new_sbmax); 1715 1716 return (error); 1717} 1718 1719/* 1720 * sysctl helper routine for kern.urandom node. picks a random number 1721 * for you. 1722 */ 1723static int 1724sysctl_kern_urnd(SYSCTLFN_ARGS) 1725{ 1726#if NRND > 0 1727 int v; 1728 1729 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1730 struct sysctlnode node = *rnode; 1731 node.sysctl_data = &v; 1732 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1733 } 1734 else 1735 return (EIO); /*XXX*/ 1736#else 1737 return (EOPNOTSUPP); 1738#endif 1739} 1740 1741/* 1742 * sysctl helper routine to do kern.lwp.* work. 1743 */ 1744static int 1745sysctl_kern_lwp(SYSCTLFN_ARGS) 1746{ 1747 struct kinfo_lwp klwp; 1748 struct proc *p; 1749 struct lwp *l2; 1750 char *where, *dp; 1751 int pid, elem_size, elem_count; 1752 int buflen, needed, error; 1753 1754 if (namelen == 1 && name[0] == CTL_QUERY) 1755 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1756 1757 dp = where = oldp; 1758 buflen = where != NULL ? *oldlenp : 0; 1759 error = needed = 0; 1760 1761 if (newp != NULL || namelen != 3) 1762 return (EINVAL); 1763 pid = name[0]; 1764 elem_size = name[1]; 1765 elem_count = name[2]; 1766 1767 p = pfind(pid); 1768 if (p == NULL) 1769 return (ESRCH); 1770 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1771 if (buflen >= elem_size && elem_count > 0) { 1772 fill_lwp(l2, &klwp); 1773 /* 1774 * Copy out elem_size, but not larger than 1775 * the size of a struct kinfo_proc2. 1776 */ 1777 error = copyout(&klwp, dp, 1778 min(sizeof(klwp), elem_size)); 1779 if (error) 1780 goto cleanup; 1781 dp += elem_size; 1782 buflen -= elem_size; 1783 elem_count--; 1784 } 1785 needed += elem_size; 1786 } 1787 1788 if (where != NULL) { 1789 *oldlenp = dp - where; 1790 if (needed > *oldlenp) 1791 return (ENOMEM); 1792 } else { 1793 needed += KERN_LWPSLOP; 1794 *oldlenp = needed; 1795 } 1796 return (0); 1797 cleanup: 1798 return (error); 1799} 1800 1801/* 1802 * sysctl helper routine for kern.forkfsleep node. ensures that the 1803 * given value is not too large or two small, and is at least one 1804 * timer tick if not zero. 1805 */ 1806static int 1807sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1808{ 1809 /* userland sees value in ms, internally is in ticks */ 1810 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1811 int error, timo, lsleep; 1812 struct sysctlnode node; 1813 1814 lsleep = forkfsleep * 1000 / hz; 1815 node = *rnode; 1816 node.sysctl_data = &lsleep; 1817 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1818 if (error || newp == NULL) 1819 return (error); 1820 1821 /* refuse negative values, and overly 'long time' */ 1822 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1823 return (EINVAL); 1824 1825 timo = mstohz(lsleep); 1826 1827 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1828 if (lsleep != 0 && timo == 0) 1829 forkfsleep = 1; 1830 else 1831 forkfsleep = timo; 1832 1833 return (0); 1834} 1835 1836/* 1837 * sysctl helper routine for kern.root_partition 1838 */ 1839static int 1840sysctl_kern_root_partition(SYSCTLFN_ARGS) 1841{ 1842 int rootpart = DISKPART(rootdev); 1843 struct sysctlnode node = *rnode; 1844 1845 node.sysctl_data = &rootpart; 1846 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1847} 1848 1849/* 1850 * sysctl helper function for kern.drivers 1851 */ 1852static int 1853sysctl_kern_drivers(SYSCTLFN_ARGS) 1854{ 1855 int error; 1856 size_t buflen; 1857 struct kinfo_drivers kd; 1858 char *start, *where; 1859 const char *dname; 1860 int i; 1861 extern struct devsw_conv *devsw_conv; 1862 extern int max_devsw_convs; 1863 1864 if (newp != NULL || namelen != 0) 1865 return (EINVAL); 1866 1867 start = where = oldp; 1868 buflen = *oldlenp; 1869 if (where == NULL) { 1870 *oldlenp = max_devsw_convs * sizeof kd; 1871 return 0; 1872 } 1873 1874 /* 1875 * An array of kinfo_drivers structures 1876 */ 1877 error = 0; 1878 for (i = 0; i < max_devsw_convs; i++) { 1879 dname = devsw_conv[i].d_name; 1880 if (dname == NULL) 1881 continue; 1882 if (buflen < sizeof kd) { 1883 error = ENOMEM; 1884 break; 1885 } 1886 memset(&kd, 0, sizeof(kd)); 1887 kd.d_bmajor = devsw_conv[i].d_bmajor; 1888 kd.d_cmajor = devsw_conv[i].d_cmajor; 1889 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1890 error = copyout(&kd, where, sizeof kd); 1891 if (error != 0) 1892 break; 1893 buflen -= sizeof kd; 1894 where += sizeof kd; 1895 } 1896 *oldlenp = where - start; 1897 return error; 1898} 1899 1900/* 1901 * sysctl helper function for kern.file2 1902 */ 1903static int 1904sysctl_kern_file2(SYSCTLFN_ARGS) 1905{ 1906 struct proc *p; 1907 struct file *fp; 1908 struct filedesc *fd; 1909 struct kinfo_file kf; 1910 char *dp; 1911 u_int i, op; 1912 size_t len, needed, elem_size, out_size; 1913 int error, arg, elem_count; 1914 1915 if (namelen == 1 && name[0] == CTL_QUERY) 1916 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1917 1918 if (namelen != 4) 1919 return (EINVAL); 1920 1921 error = 0; 1922 dp = oldp; 1923 len = (oldp != NULL) ? *oldlenp : 0; 1924 op = name[0]; 1925 arg = name[1]; 1926 elem_size = name[2]; 1927 elem_count = name[3]; 1928 out_size = MIN(sizeof(kf), elem_size); 1929 needed = 0; 1930 1931 if (elem_size < 1 || elem_count < 0) 1932 return (EINVAL); 1933 1934 switch (op) { 1935 case KERN_FILE_BYFILE: 1936 /* 1937 * doesn't use arg so it must be zero 1938 */ 1939 if (arg != 0) 1940 return (EINVAL); 1941 LIST_FOREACH(fp, &filehead, f_list) { 1942 if (len >= elem_size && elem_count > 0) { 1943 fill_file(&kf, fp, NULL, 0); 1944 error = copyout(&kf, dp, out_size); 1945 if (error) 1946 break; 1947 dp += elem_size; 1948 len -= elem_size; 1949 } 1950 if (elem_count > 0) { 1951 needed += elem_size; 1952 if (elem_count != INT_MAX) 1953 elem_count--; 1954 } 1955 } 1956 break; 1957 case KERN_FILE_BYPID: 1958 if (arg < -1) 1959 /* -1 means all processes */ 1960 return (EINVAL); 1961 proclist_lock_read(); 1962 PROCLIST_FOREACH(p, &allproc) { 1963 if (p->p_stat == SIDL) 1964 /* skip embryonic processes */ 1965 continue; 1966 if (arg > 0 && p->p_pid != arg) 1967 /* pick only the one we want */ 1968 /* XXX want 0 to mean "kernel files" */ 1969 continue; 1970 fd = p->p_fd; 1971 for (i = 0; i < fd->fd_nfiles; i++) { 1972 fp = fd->fd_ofiles[i]; 1973 if (fp == NULL || !FILE_IS_USABLE(fp)) 1974 continue; 1975 if (len >= elem_size && elem_count > 0) { 1976 fill_file(&kf, fd->fd_ofiles[i], 1977 p, i); 1978 error = copyout(&kf, dp, out_size); 1979 if (error) 1980 break; 1981 dp += elem_size; 1982 len -= elem_size; 1983 } 1984 if (elem_count > 0) { 1985 needed += elem_size; 1986 if (elem_count != INT_MAX) 1987 elem_count--; 1988 } 1989 } 1990 } 1991 proclist_unlock_read(); 1992 break; 1993 default: 1994 return (EINVAL); 1995 } 1996 1997 if (oldp == NULL) 1998 needed += KERN_FILESLOP * elem_size; 1999 *oldlenp = needed; 2000 2001 return (error); 2002} 2003 2004static void 2005fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2006{ 2007 2008 memset(kp, 0, sizeof(*kp)); 2009 2010 kp->ki_fileaddr = PTRTOUINT64(fp); 2011 kp->ki_flag = fp->f_flag; 2012 kp->ki_iflags = fp->f_iflags; 2013 kp->ki_ftype = fp->f_type; 2014 kp->ki_count = fp->f_count; 2015 kp->ki_msgcount = fp->f_msgcount; 2016 kp->ki_usecount = fp->f_usecount; 2017 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2018 kp->ki_fuid = fp->f_cred->cr_uid; 2019 kp->ki_fgid = fp->f_cred->cr_gid; 2020 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2021 kp->ki_foffset = fp->f_offset; 2022 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2023 2024 /* vnode information to glue this file to something */ 2025 if (fp->f_type == DTYPE_VNODE) { 2026 struct vnode *vp = (struct vnode *)fp->f_data; 2027 2028 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2029 kp->ki_vsize = vp->v_size; 2030 kp->ki_vtype = vp->v_type; 2031 kp->ki_vtag = vp->v_tag; 2032 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2033 } 2034 2035 /* process information when retrieved via KERN_FILE_BYPID */ 2036 if (p) { 2037 kp->ki_pid = p->p_pid; 2038 kp->ki_fd = i; 2039 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2040 } 2041} 2042 2043static int 2044sysctl_doeproc(SYSCTLFN_ARGS) 2045{ 2046 struct eproc eproc; 2047 struct kinfo_proc2 kproc2; 2048 struct kinfo_proc *dp; 2049 struct proc *p; 2050 const struct proclist_desc *pd; 2051 char *where, *dp2; 2052 int type, op, arg; 2053 u_int elem_size, elem_count; 2054 size_t buflen, needed; 2055 int error; 2056 2057 if (namelen == 1 && name[0] == CTL_QUERY) 2058 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2059 2060 dp = oldp; 2061 dp2 = where = oldp; 2062 buflen = where != NULL ? *oldlenp : 0; 2063 error = 0; 2064 needed = 0; 2065 type = rnode->sysctl_num; 2066 2067 if (type == KERN_PROC) { 2068 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2069 return (EINVAL); 2070 op = name[0]; 2071 if (op != KERN_PROC_ALL) 2072 arg = name[1]; 2073 else 2074 arg = 0; /* Quell compiler warning */ 2075 elem_size = elem_count = 0; /* Ditto */ 2076 } else { 2077 if (namelen != 4) 2078 return (EINVAL); 2079 op = name[0]; 2080 arg = name[1]; 2081 elem_size = name[2]; 2082 elem_count = name[3]; 2083 } 2084 2085 proclist_lock_read(); 2086 2087 pd = proclists; 2088again: 2089 PROCLIST_FOREACH(p, pd->pd_list) { 2090 /* 2091 * Skip embryonic processes. 2092 */ 2093 if (p->p_stat == SIDL) 2094 continue; 2095 /* 2096 * TODO - make more efficient (see notes below). 2097 * do by session. 2098 */ 2099 switch (op) { 2100 2101 case KERN_PROC_PID: 2102 /* could do this with just a lookup */ 2103 if (p->p_pid != (pid_t)arg) 2104 continue; 2105 break; 2106 2107 case KERN_PROC_PGRP: 2108 /* could do this by traversing pgrp */ 2109 if (p->p_pgrp->pg_id != (pid_t)arg) 2110 continue; 2111 break; 2112 2113 case KERN_PROC_SESSION: 2114 if (p->p_session->s_sid != (pid_t)arg) 2115 continue; 2116 break; 2117 2118 case KERN_PROC_TTY: 2119 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2120 if ((p->p_flag & P_CONTROLT) == 0 || 2121 p->p_session->s_ttyp == NULL || 2122 p->p_session->s_ttyvp != NULL) 2123 continue; 2124 } else if ((p->p_flag & P_CONTROLT) == 0 || 2125 p->p_session->s_ttyp == NULL) { 2126 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2127 continue; 2128 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2129 continue; 2130 break; 2131 2132 case KERN_PROC_UID: 2133 if (p->p_ucred->cr_uid != (uid_t)arg) 2134 continue; 2135 break; 2136 2137 case KERN_PROC_RUID: 2138 if (p->p_cred->p_ruid != (uid_t)arg) 2139 continue; 2140 break; 2141 2142 case KERN_PROC_GID: 2143 if (p->p_ucred->cr_gid != (uid_t)arg) 2144 continue; 2145 break; 2146 2147 case KERN_PROC_RGID: 2148 if (p->p_cred->p_rgid != (uid_t)arg) 2149 continue; 2150 break; 2151 2152 case KERN_PROC_ALL: 2153 /* allow everything */ 2154 break; 2155 2156 default: 2157 error = EINVAL; 2158 goto cleanup; 2159 } 2160 if (type == KERN_PROC) { 2161 if (buflen >= sizeof(struct kinfo_proc)) { 2162 fill_eproc(p, &eproc); 2163 error = copyout(p, &dp->kp_proc, 2164 sizeof(struct proc)); 2165 if (error) 2166 goto cleanup; 2167 error = copyout(&eproc, &dp->kp_eproc, 2168 sizeof(eproc)); 2169 if (error) 2170 goto cleanup; 2171 dp++; 2172 buflen -= sizeof(struct kinfo_proc); 2173 } 2174 needed += sizeof(struct kinfo_proc); 2175 } else { /* KERN_PROC2 */ 2176 if (buflen >= elem_size && elem_count > 0) { 2177 fill_kproc2(p, &kproc2); 2178 /* 2179 * Copy out elem_size, but not larger than 2180 * the size of a struct kinfo_proc2. 2181 */ 2182 error = copyout(&kproc2, dp2, 2183 min(sizeof(kproc2), elem_size)); 2184 if (error) 2185 goto cleanup; 2186 dp2 += elem_size; 2187 buflen -= elem_size; 2188 elem_count--; 2189 } 2190 needed += elem_size; 2191 } 2192 } 2193 pd++; 2194 if (pd->pd_list != NULL) 2195 goto again; 2196 proclist_unlock_read(); 2197 2198 if (where != NULL) { 2199 if (type == KERN_PROC) 2200 *oldlenp = (char *)dp - where; 2201 else 2202 *oldlenp = dp2 - where; 2203 if (needed > *oldlenp) 2204 return (ENOMEM); 2205 } else { 2206 needed += KERN_PROCSLOP; 2207 *oldlenp = needed; 2208 } 2209 return (0); 2210 cleanup: 2211 proclist_unlock_read(); 2212 return (error); 2213} 2214 2215/* 2216 * sysctl helper routine for kern.proc_args pseudo-subtree. 2217 */ 2218static int 2219sysctl_kern_proc_args(SYSCTLFN_ARGS) 2220{ 2221 struct ps_strings pss; 2222 struct proc *p, *up = l->l_proc; 2223 size_t len, upper_bound, xlen, i; 2224 struct uio auio; 2225 struct iovec aiov; 2226 vaddr_t argv; 2227 pid_t pid; 2228 int nargv, type, error; 2229 char *arg; 2230 char *tmp; 2231 2232 if (namelen == 1 && name[0] == CTL_QUERY) 2233 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2234 2235 if (newp != NULL || namelen != 2) 2236 return (EINVAL); 2237 pid = name[0]; 2238 type = name[1]; 2239 2240 switch (type) { 2241 case KERN_PROC_ARGV: 2242 case KERN_PROC_NARGV: 2243 case KERN_PROC_ENV: 2244 case KERN_PROC_NENV: 2245 /* ok */ 2246 break; 2247 default: 2248 return (EINVAL); 2249 } 2250 2251 /* check pid */ 2252 if ((p = pfind(pid)) == NULL) 2253 return (EINVAL); 2254 2255 /* only root or same user change look at the environment */ 2256 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2257 if (up->p_ucred->cr_uid != 0) { 2258 if (up->p_cred->p_ruid != p->p_cred->p_ruid || 2259 up->p_cred->p_ruid != p->p_cred->p_svuid) 2260 return (EPERM); 2261 } 2262 } 2263 2264 if (oldp == NULL) { 2265 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2266 *oldlenp = sizeof (int); 2267 else 2268 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2269 return (0); 2270 } 2271 2272 /* 2273 * Zombies don't have a stack, so we can't read their psstrings. 2274 * System processes also don't have a user stack. 2275 */ 2276 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) 2277 return (EINVAL); 2278 2279 /* 2280 * Lock the process down in memory. 2281 */ 2282 /* XXXCDC: how should locking work here? */ 2283 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) 2284 return (EFAULT); 2285 2286 p->p_vmspace->vm_refcnt++; /* XXX */ 2287 2288 /* 2289 * Allocate a temporary buffer to hold the arguments. 2290 */ 2291 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2292 2293 /* 2294 * Read in the ps_strings structure. 2295 */ 2296 aiov.iov_base = &pss; 2297 aiov.iov_len = sizeof(pss); 2298 auio.uio_iov = &aiov; 2299 auio.uio_iovcnt = 1; 2300 auio.uio_offset = (vaddr_t)p->p_psstr; 2301 auio.uio_resid = sizeof(pss); 2302 auio.uio_segflg = UIO_SYSSPACE; 2303 auio.uio_rw = UIO_READ; 2304 auio.uio_procp = NULL; 2305 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2306 if (error) 2307 goto done; 2308 2309 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2310 memcpy(&nargv, (char *)&pss + p->p_psnargv, sizeof(nargv)); 2311 else 2312 memcpy(&nargv, (char *)&pss + p->p_psnenv, sizeof(nargv)); 2313 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2314 error = copyout(&nargv, oldp, sizeof(nargv)); 2315 *oldlenp = sizeof(nargv); 2316 goto done; 2317 } 2318 /* 2319 * Now read the address of the argument vector. 2320 */ 2321 switch (type) { 2322 case KERN_PROC_ARGV: 2323 /* XXX compat32 stuff here */ 2324 memcpy(&tmp, (char *)&pss + p->p_psargv, sizeof(tmp)); 2325 break; 2326 case KERN_PROC_ENV: 2327 memcpy(&tmp, (char *)&pss + p->p_psenv, sizeof(tmp)); 2328 break; 2329 default: 2330 return (EINVAL); 2331 } 2332 auio.uio_offset = (off_t)(unsigned long)tmp; 2333 aiov.iov_base = &argv; 2334 aiov.iov_len = sizeof(argv); 2335 auio.uio_iov = &aiov; 2336 auio.uio_iovcnt = 1; 2337 auio.uio_resid = sizeof(argv); 2338 auio.uio_segflg = UIO_SYSSPACE; 2339 auio.uio_rw = UIO_READ; 2340 auio.uio_procp = NULL; 2341 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2342 if (error) 2343 goto done; 2344 2345 /* 2346 * Now copy in the actual argument vector, one page at a time, 2347 * since we don't know how long the vector is (though, we do 2348 * know how many NUL-terminated strings are in the vector). 2349 */ 2350 len = 0; 2351 upper_bound = *oldlenp; 2352 for (; nargv != 0 && len < upper_bound; len += xlen) { 2353 aiov.iov_base = arg; 2354 aiov.iov_len = PAGE_SIZE; 2355 auio.uio_iov = &aiov; 2356 auio.uio_iovcnt = 1; 2357 auio.uio_offset = argv + len; 2358 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2359 auio.uio_resid = xlen; 2360 auio.uio_segflg = UIO_SYSSPACE; 2361 auio.uio_rw = UIO_READ; 2362 auio.uio_procp = NULL; 2363 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2364 if (error) 2365 goto done; 2366 2367 for (i = 0; i < xlen && nargv != 0; i++) { 2368 if (arg[i] == '\0') 2369 nargv--; /* one full string */ 2370 } 2371 2372 /* 2373 * Make sure we don't copyout past the end of the user's 2374 * buffer. 2375 */ 2376 if (len + i > upper_bound) 2377 i = upper_bound - len; 2378 2379 error = copyout(arg, (char *)oldp + len, i); 2380 if (error) 2381 break; 2382 2383 if (nargv == 0) { 2384 len += i; 2385 break; 2386 } 2387 } 2388 *oldlenp = len; 2389 2390done: 2391 uvmspace_free(p->p_vmspace); 2392 2393 free(arg, M_TEMP); 2394 return (error); 2395} 2396 2397/* 2398 * Sysctl helper routine for Verified Exec. 2399 */ 2400#ifdef VERIFIED_EXEC 2401static int 2402sysctl_kern_veriexec(SYSCTLFN_ARGS) 2403{ 2404 int newval, error; 2405 int *var = NULL, raise_only = 0; 2406 struct sysctlnode node; 2407 2408 node = *rnode; 2409 2410 switch (rnode->sysctl_num) { 2411 case VERIEXEC_STRICT: 2412 raise_only = 1; 2413 var = &veriexec_strict; 2414 break; 2415 case VERIEXEC_ALGORITHMS: 2416 node.sysctl_data = veriexec_fp_names; 2417 node.sysctl_size = strlen(veriexec_fp_names) + 1; 2418 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2419 default: 2420 return (EINVAL); 2421 } 2422 2423 newval = *var; 2424 2425 node.sysctl_data = &newval; 2426 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2427 if (error || newp == NULL) { 2428 return (error); 2429 } 2430 2431 if (raise_only && (newval < *var)) 2432 return (EPERM); 2433 2434 *var = newval; 2435 2436 return (error); 2437} 2438#endif /* VERIFIED_EXEC */ 2439 2440/* 2441 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2442 * calculate on the fly taking into account integer overflow and the 2443 * current wired count. 2444 */ 2445static int 2446sysctl_hw_usermem(SYSCTLFN_ARGS) 2447{ 2448 u_int ui; 2449 u_quad_t uq; 2450 struct sysctlnode node; 2451 2452 node = *rnode; 2453 switch (rnode->sysctl_num) { 2454 case HW_USERMEM: 2455 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2456 ui = UINT_MAX; 2457 else 2458 ui *= PAGE_SIZE; 2459 node.sysctl_data = &ui; 2460 break; 2461 case HW_USERMEM64: 2462 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2463 node.sysctl_data = &uq; 2464 break; 2465 default: 2466 return (EINVAL); 2467 } 2468 2469 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2470} 2471 2472/* 2473 * sysctl helper routine for kern.cnmagic node. pulls the old value 2474 * out, encoded, and stuffs the new value in for decoding. 2475 */ 2476static int 2477sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2478{ 2479 char magic[CNS_LEN]; 2480 int error; 2481 struct sysctlnode node; 2482 2483 if (oldp) 2484 cn_get_magic(magic, CNS_LEN); 2485 node = *rnode; 2486 node.sysctl_data = &magic[0]; 2487 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2488 if (error || newp == NULL) 2489 return (error); 2490 2491 return (cn_set_magic(magic)); 2492} 2493 2494static int 2495sysctl_hw_ncpu(SYSCTLFN_ARGS) 2496{ 2497 int ncpu; 2498 struct sysctlnode node; 2499 2500 ncpu = sysctl_ncpus(); 2501 node = *rnode; 2502 node.sysctl_data = &ncpu; 2503 2504 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2505} 2506 2507 2508/* 2509 * ******************************************************************** 2510 * section 3: public helper routines that are used for more than one 2511 * node 2512 * ******************************************************************** 2513 */ 2514 2515/* 2516 * sysctl helper routine for the kern.root_device node and some ports' 2517 * machdep.root_device nodes. 2518 */ 2519int 2520sysctl_root_device(SYSCTLFN_ARGS) 2521{ 2522 struct sysctlnode node; 2523 2524 node = *rnode; 2525 node.sysctl_data = root_device->dv_xname; 2526 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2527 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2528} 2529 2530/* 2531 * sysctl helper routine for kern.consdev, dependent on the current 2532 * state of the console. also used for machdep.console_device on some 2533 * ports. 2534 */ 2535int 2536sysctl_consdev(SYSCTLFN_ARGS) 2537{ 2538 dev_t consdev; 2539 struct sysctlnode node; 2540 2541 if (cn_tab != NULL) 2542 consdev = cn_tab->cn_dev; 2543 else 2544 consdev = NODEV; 2545 node = *rnode; 2546 node.sysctl_data = &consdev; 2547 node.sysctl_size = sizeof(consdev); 2548 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2549} 2550 2551/* 2552 * ******************************************************************** 2553 * section 4: support for some helpers 2554 * ******************************************************************** 2555 */ 2556 2557/* 2558 * Fill in a kinfo_proc2 structure for the specified process. 2559 */ 2560static void 2561fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2562{ 2563 struct tty *tp; 2564 struct lwp *l; 2565 struct timeval ut, st; 2566 2567 memset(ki, 0, sizeof(*ki)); 2568 2569 ki->p_paddr = PTRTOUINT64(p); 2570 ki->p_fd = PTRTOUINT64(p->p_fd); 2571 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2572 ki->p_stats = PTRTOUINT64(p->p_stats); 2573 ki->p_limit = PTRTOUINT64(p->p_limit); 2574 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2575 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2576 ki->p_sess = PTRTOUINT64(p->p_session); 2577 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2578 ki->p_ru = PTRTOUINT64(p->p_ru); 2579 2580 ki->p_eflag = 0; 2581 ki->p_exitsig = p->p_exitsig; 2582 ki->p_flag = p->p_flag; 2583 2584 ki->p_pid = p->p_pid; 2585 if (p->p_pptr) 2586 ki->p_ppid = p->p_pptr->p_pid; 2587 else 2588 ki->p_ppid = 0; 2589 ki->p_sid = p->p_session->s_sid; 2590 ki->p__pgid = p->p_pgrp->pg_id; 2591 2592 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2593 2594 ki->p_uid = p->p_ucred->cr_uid; 2595 ki->p_ruid = p->p_cred->p_ruid; 2596 ki->p_gid = p->p_ucred->cr_gid; 2597 ki->p_rgid = p->p_cred->p_rgid; 2598 ki->p_svuid = p->p_cred->p_svuid; 2599 ki->p_svgid = p->p_cred->p_svgid; 2600 2601 memcpy(ki->p_groups, p->p_cred->pc_ucred->cr_groups, 2602 min(sizeof(ki->p_groups), sizeof(p->p_cred->pc_ucred->cr_groups))); 2603 ki->p_ngroups = p->p_cred->pc_ucred->cr_ngroups; 2604 2605 ki->p_jobc = p->p_pgrp->pg_jobc; 2606 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2607 ki->p_tdev = tp->t_dev; 2608 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2609 ki->p_tsess = PTRTOUINT64(tp->t_session); 2610 } else { 2611 ki->p_tdev = NODEV; 2612 } 2613 2614 ki->p_estcpu = p->p_estcpu; 2615 ki->p_rtime_sec = p->p_rtime.tv_sec; 2616 ki->p_rtime_usec = p->p_rtime.tv_usec; 2617 ki->p_cpticks = p->p_cpticks; 2618 ki->p_pctcpu = p->p_pctcpu; 2619 2620 ki->p_uticks = p->p_uticks; 2621 ki->p_sticks = p->p_sticks; 2622 ki->p_iticks = p->p_iticks; 2623 2624 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2625 ki->p_traceflag = p->p_traceflag; 2626 2627 2628 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2629 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2630 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2631 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2632 2633 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2634 ki->p_realstat = p->p_stat; 2635 ki->p_nice = p->p_nice; 2636 2637 ki->p_xstat = p->p_xstat; 2638 ki->p_acflag = p->p_acflag; 2639 2640 strncpy(ki->p_comm, p->p_comm, 2641 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2642 2643 strncpy(ki->p_login, p->p_session->s_login, 2644 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2645 2646 ki->p_nlwps = p->p_nlwps; 2647 ki->p_nrlwps = p->p_nrlwps; 2648 ki->p_realflag = p->p_flag; 2649 2650 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2651 ki->p_vm_rssize = 0; 2652 ki->p_vm_tsize = 0; 2653 ki->p_vm_dsize = 0; 2654 ki->p_vm_ssize = 0; 2655 l = NULL; 2656 } else { 2657 struct vmspace *vm = p->p_vmspace; 2658 2659 ki->p_vm_rssize = vm_resident_count(vm); 2660 ki->p_vm_tsize = vm->vm_tsize; 2661 ki->p_vm_dsize = vm->vm_dsize; 2662 ki->p_vm_ssize = vm->vm_ssize; 2663 2664 /* Pick a "representative" LWP */ 2665 l = proc_representative_lwp(p); 2666 ki->p_forw = PTRTOUINT64(l->l_forw); 2667 ki->p_back = PTRTOUINT64(l->l_back); 2668 ki->p_addr = PTRTOUINT64(l->l_addr); 2669 ki->p_stat = l->l_stat; 2670 ki->p_flag |= l->l_flag; 2671 ki->p_swtime = l->l_swtime; 2672 ki->p_slptime = l->l_slptime; 2673 if (l->l_stat == LSONPROC) { 2674 KDASSERT(l->l_cpu != NULL); 2675 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2676 } else 2677 ki->p_schedflags = 0; 2678 ki->p_holdcnt = l->l_holdcnt; 2679 ki->p_priority = l->l_priority; 2680 ki->p_usrpri = l->l_usrpri; 2681 if (l->l_wmesg) 2682 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2683 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2684 2685 } 2686 2687 if (p->p_session->s_ttyvp) 2688 ki->p_eflag |= EPROC_CTTY; 2689 if (SESS_LEADER(p)) 2690 ki->p_eflag |= EPROC_SLEADER; 2691 2692 /* XXX Is this double check necessary? */ 2693 if (P_ZOMBIE(p)) { 2694 ki->p_uvalid = 0; 2695 } else { 2696 ki->p_uvalid = 1; 2697 2698 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2699 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2700 2701 calcru(p, &ut, &st, 0); 2702 ki->p_uutime_sec = ut.tv_sec; 2703 ki->p_uutime_usec = ut.tv_usec; 2704 ki->p_ustime_sec = st.tv_sec; 2705 ki->p_ustime_usec = st.tv_usec; 2706 2707 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2708 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2709 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2710 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2711 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2712 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2713 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2714 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2715 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2716 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2717 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2718 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2719 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 2720 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 2721 2722 timeradd(&p->p_stats->p_cru.ru_utime, 2723 &p->p_stats->p_cru.ru_stime, &ut); 2724 ki->p_uctime_sec = ut.tv_sec; 2725 ki->p_uctime_usec = ut.tv_usec; 2726 } 2727#ifdef MULTIPROCESSOR 2728 if (l && l->l_cpu != NULL) 2729 ki->p_cpuid = l->l_cpu->ci_cpuid; 2730 else 2731#endif 2732 ki->p_cpuid = KI_NOCPU; 2733} 2734 2735/* 2736 * Fill in a kinfo_lwp structure for the specified lwp. 2737 */ 2738static void 2739fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2740{ 2741 2742 kl->l_forw = PTRTOUINT64(l->l_forw); 2743 kl->l_back = PTRTOUINT64(l->l_back); 2744 kl->l_laddr = PTRTOUINT64(l); 2745 kl->l_addr = PTRTOUINT64(l->l_addr); 2746 kl->l_stat = l->l_stat; 2747 kl->l_lid = l->l_lid; 2748 kl->l_flag = l->l_flag; 2749 2750 kl->l_swtime = l->l_swtime; 2751 kl->l_slptime = l->l_slptime; 2752 if (l->l_stat == LSONPROC) { 2753 KDASSERT(l->l_cpu != NULL); 2754 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2755 } else 2756 kl->l_schedflags = 0; 2757 kl->l_holdcnt = l->l_holdcnt; 2758 kl->l_priority = l->l_priority; 2759 kl->l_usrpri = l->l_usrpri; 2760 if (l->l_wmesg) 2761 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2762 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2763#ifdef MULTIPROCESSOR 2764 if (l->l_cpu != NULL) 2765 kl->l_cpuid = l->l_cpu->ci_cpuid; 2766 else 2767#endif 2768 kl->l_cpuid = KI_NOCPU; 2769} 2770 2771/* 2772 * Fill in an eproc structure for the specified process. 2773 */ 2774void 2775fill_eproc(struct proc *p, struct eproc *ep) 2776{ 2777 struct tty *tp; 2778 struct lwp *l; 2779 2780 ep->e_paddr = p; 2781 ep->e_sess = p->p_session; 2782 ep->e_pcred = *p->p_cred; 2783 ep->e_ucred = *p->p_ucred; 2784 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2785 ep->e_vm.vm_rssize = 0; 2786 ep->e_vm.vm_tsize = 0; 2787 ep->e_vm.vm_dsize = 0; 2788 ep->e_vm.vm_ssize = 0; 2789 /* ep->e_vm.vm_pmap = XXX; */ 2790 } else { 2791 struct vmspace *vm = p->p_vmspace; 2792 2793 ep->e_vm.vm_rssize = vm_resident_count(vm); 2794 ep->e_vm.vm_tsize = vm->vm_tsize; 2795 ep->e_vm.vm_dsize = vm->vm_dsize; 2796 ep->e_vm.vm_ssize = vm->vm_ssize; 2797 2798 /* Pick a "representative" LWP */ 2799 l = proc_representative_lwp(p); 2800 2801 if (l->l_wmesg) 2802 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2803 } 2804 if (p->p_pptr) 2805 ep->e_ppid = p->p_pptr->p_pid; 2806 else 2807 ep->e_ppid = 0; 2808 ep->e_pgid = p->p_pgrp->pg_id; 2809 ep->e_sid = ep->e_sess->s_sid; 2810 ep->e_jobc = p->p_pgrp->pg_jobc; 2811 if ((p->p_flag & P_CONTROLT) && 2812 (tp = ep->e_sess->s_ttyp)) { 2813 ep->e_tdev = tp->t_dev; 2814 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2815 ep->e_tsess = tp->t_session; 2816 } else 2817 ep->e_tdev = NODEV; 2818 2819 ep->e_xsize = ep->e_xrssize = 0; 2820 ep->e_xccount = ep->e_xswrss = 0; 2821 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2822 if (SESS_LEADER(p)) 2823 ep->e_flag |= EPROC_SLEADER; 2824 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2825} 2826