Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/kern/init_sysctl.c
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
1 /* $NetBSD: init_sysctl.c,v 1.24.2.5 2004/07/28 11:03:51 tron 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 1.24.2.5 2004/07/28 11:03:51 tron 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/tty.h> 65 #include <sys/malloc.h> 66 #include <sys/resource.h> 67 #include <sys/resourcevar.h> 68 #include <sys/exec.h> 69 #include <sys/conf.h> 70 #include <sys/device.h> 71 72 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 73 #include <sys/ipc.h> 74 #endif 75 #ifdef SYSVMSG 76 #include <sys/msg.h> 77 #endif 78 #ifdef SYSVSEM 79 #include <sys/sem.h> 80 #endif 81 #ifdef SYSVSHM 82 #include <sys/shm.h> 83 #endif 84 85 #include <machine/cpu.h> 86 87 /* 88 * try over estimating by 5 procs/lwps 89 */ 90 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 91 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 92 93 #ifndef MULTIPROCESSOR 94 #define sysctl_ncpus() (1) 95 #else /* MULTIPROCESSOR */ 96 #ifndef CPU_INFO_FOREACH 97 #define CPU_INFO_ITERATOR int 98 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 99 #endif 100 static int 101 sysctl_ncpus(void) 102 { 103 struct cpu_info *ci; 104 CPU_INFO_ITERATOR cii; 105 106 int ncpus = 0; 107 for (CPU_INFO_FOREACH(cii, ci)) 108 ncpus++; 109 return (ncpus); 110 } 111 #endif /* MULTIPROCESSOR */ 112 113 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 114 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 115 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 116 static int sysctl_kern_securelevel(SYSCTLFN_PROTO); 117 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 118 static int sysctl_setlen(SYSCTLFN_PROTO); 119 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 120 static int sysctl_kern_file(SYSCTLFN_PROTO); 121 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 122 static int sysctl_msgbuf(SYSCTLFN_PROTO); 123 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 124 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 125 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 126 static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 127 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 128 #if NPTY > 0 129 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 130 #endif /* NPTY > 0 */ 131 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 132 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 133 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 134 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 135 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 136 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 137 static int sysctl_doeproc(SYSCTLFN_PROTO); 138 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 139 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 140 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 141 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 142 143 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 144 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 145 146 /* 147 * ******************************************************************** 148 * section 1: setup routines 149 * ******************************************************************** 150 * these functions are stuffed into a link set for sysctl setup 151 * functions. they're never called or referenced from anywhere else. 152 * ******************************************************************** 153 */ 154 155 /* 156 * sets up the base nodes... 157 */ 158 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 159 { 160 161 sysctl_createv(clog, 0, NULL, NULL, 162 CTLFLAG_PERMANENT, 163 CTLTYPE_NODE, "kern", 164 SYSCTL_DESCR("High kernel"), 165 NULL, 0, NULL, 0, 166 CTL_KERN, CTL_EOL); 167 sysctl_createv(clog, 0, NULL, NULL, 168 CTLFLAG_PERMANENT, 169 CTLTYPE_NODE, "vm", 170 SYSCTL_DESCR("Virtual memory"), 171 NULL, 0, NULL, 0, 172 CTL_VM, CTL_EOL); 173 sysctl_createv(clog, 0, NULL, NULL, 174 CTLFLAG_PERMANENT, 175 CTLTYPE_NODE, "vfs", 176 SYSCTL_DESCR("Filesystem"), 177 NULL, 0, NULL, 0, 178 CTL_VFS, CTL_EOL); 179 sysctl_createv(clog, 0, NULL, NULL, 180 CTLFLAG_PERMANENT, 181 CTLTYPE_NODE, "net", 182 SYSCTL_DESCR("Networking"), 183 NULL, 0, NULL, 0, 184 CTL_NET, CTL_EOL); 185 sysctl_createv(clog, 0, NULL, NULL, 186 CTLFLAG_PERMANENT, 187 CTLTYPE_NODE, "debug", 188 SYSCTL_DESCR("Debugging"), 189 NULL, 0, NULL, 0, 190 CTL_DEBUG, CTL_EOL); 191 sysctl_createv(clog, 0, NULL, NULL, 192 CTLFLAG_PERMANENT, 193 CTLTYPE_NODE, "hw", 194 SYSCTL_DESCR("Generic CPU, I/O"), 195 NULL, 0, NULL, 0, 196 CTL_HW, CTL_EOL); 197 sysctl_createv(clog, 0, NULL, NULL, 198 CTLFLAG_PERMANENT, 199 CTLTYPE_NODE, "machdep", 200 SYSCTL_DESCR("Machine dependent"), 201 NULL, 0, NULL, 0, 202 CTL_MACHDEP, CTL_EOL); 203 /* 204 * this node is inserted so that the sysctl nodes in libc can 205 * operate. 206 */ 207 sysctl_createv(clog, 0, NULL, NULL, 208 CTLFLAG_PERMANENT, 209 CTLTYPE_NODE, "user", 210 SYSCTL_DESCR("User-level"), 211 NULL, 0, NULL, 0, 212 CTL_USER, CTL_EOL); 213 sysctl_createv(clog, 0, NULL, NULL, 214 CTLFLAG_PERMANENT, 215 CTLTYPE_NODE, "ddb", 216 SYSCTL_DESCR("In-kernel debugger"), 217 NULL, 0, NULL, 0, 218 CTL_DDB, CTL_EOL); 219 sysctl_createv(clog, 0, NULL, NULL, 220 CTLFLAG_PERMANENT, 221 CTLTYPE_NODE, "proc", 222 SYSCTL_DESCR("Per-process"), 223 NULL, 0, NULL, 0, 224 CTL_PROC, CTL_EOL); 225 sysctl_createv(clog, 0, NULL, NULL, 226 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 227 CTLTYPE_NODE, "vendor", 228 SYSCTL_DESCR("Vendor specific"), 229 NULL, 0, NULL, 0, 230 CTL_VENDOR, CTL_EOL); 231 sysctl_createv(clog, 0, NULL, NULL, 232 CTLFLAG_PERMANENT, 233 CTLTYPE_NODE, "emul", 234 SYSCTL_DESCR("Emulation settings"), 235 NULL, 0, NULL, 0, 236 CTL_EMUL, CTL_EOL); 237 } 238 239 /* 240 * this setup routine is a replacement for kern_sysctl() 241 */ 242 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 243 { 244 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 245 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 246 extern int dumponpanic; /* defined in kern/subr_prf.c */ 247 248 sysctl_createv(clog, 0, NULL, NULL, 249 CTLFLAG_PERMANENT, 250 CTLTYPE_NODE, "kern", NULL, 251 NULL, 0, NULL, 0, 252 CTL_KERN, CTL_EOL); 253 254 sysctl_createv(clog, 0, NULL, NULL, 255 CTLFLAG_PERMANENT, 256 CTLTYPE_STRING, "ostype", 257 SYSCTL_DESCR("Operating system type"), 258 NULL, 0, &ostype, 0, 259 CTL_KERN, KERN_OSTYPE, CTL_EOL); 260 sysctl_createv(clog, 0, NULL, NULL, 261 CTLFLAG_PERMANENT, 262 CTLTYPE_STRING, "osrelease", 263 SYSCTL_DESCR("Operating system release"), 264 NULL, 0, &osrelease, 0, 265 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 266 sysctl_createv(clog, 0, NULL, NULL, 267 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 268 CTLTYPE_INT, "osrevision", 269 SYSCTL_DESCR("Operating system revision"), 270 NULL, __NetBSD_Version__, NULL, 0, 271 CTL_KERN, KERN_OSREV, CTL_EOL); 272 sysctl_createv(clog, 0, NULL, NULL, 273 CTLFLAG_PERMANENT, 274 CTLTYPE_STRING, "version", 275 SYSCTL_DESCR("Kernel version"), 276 NULL, 0, &version, 0, 277 CTL_KERN, KERN_VERSION, CTL_EOL); 278 sysctl_createv(clog, 0, NULL, NULL, 279 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 280 CTLTYPE_INT, "maxvnodes", 281 SYSCTL_DESCR("Maximum number of vnodes"), 282 sysctl_kern_maxvnodes, 0, NULL, 0, 283 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 284 sysctl_createv(clog, 0, NULL, NULL, 285 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 286 CTLTYPE_INT, "maxproc", 287 SYSCTL_DESCR("Maximum number of simultaneous processes"), 288 sysctl_kern_maxproc, 0, NULL, 0, 289 CTL_KERN, KERN_MAXPROC, CTL_EOL); 290 sysctl_createv(clog, 0, NULL, NULL, 291 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 292 CTLTYPE_INT, "maxfiles", 293 SYSCTL_DESCR("Maximum number of open files"), 294 NULL, 0, &maxfiles, 0, 295 CTL_KERN, KERN_MAXFILES, CTL_EOL); 296 sysctl_createv(clog, 0, NULL, NULL, 297 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 298 CTLTYPE_INT, "argmax", 299 SYSCTL_DESCR("Maximum number of bytes of arguments to " 300 "execve(2)"), 301 NULL, ARG_MAX, NULL, 0, 302 CTL_KERN, KERN_ARGMAX, CTL_EOL); 303 sysctl_createv(clog, 0, NULL, NULL, 304 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 305 CTLTYPE_INT, "securelevel", 306 SYSCTL_DESCR("System security level"), 307 sysctl_kern_securelevel, 0, &securelevel, 0, 308 CTL_KERN, KERN_SECURELVL, CTL_EOL); 309 sysctl_createv(clog, 0, NULL, NULL, 310 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 311 CTLTYPE_STRING, "hostname", 312 SYSCTL_DESCR("System hostname"), 313 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 314 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 315 sysctl_createv(clog, 0, NULL, NULL, 316 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 317 CTLTYPE_INT, "hostid", 318 SYSCTL_DESCR("System host ID number"), 319 sysctl_kern_hostid, 0, NULL, 0, 320 CTL_KERN, KERN_HOSTID, CTL_EOL); 321 sysctl_createv(clog, 0, NULL, NULL, 322 CTLFLAG_PERMANENT, 323 CTLTYPE_STRUCT, "clockrate", 324 SYSCTL_DESCR("Kernel clock rates"), 325 sysctl_kern_clockrate, 0, NULL, 326 sizeof(struct clockinfo), 327 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 328 sysctl_createv(clog, 0, NULL, NULL, 329 CTLFLAG_PERMANENT, 330 CTLTYPE_STRUCT, "vnode", 331 SYSCTL_DESCR("System vnode table"), 332 sysctl_kern_vnode, 0, NULL, 0, 333 CTL_KERN, KERN_VNODE, CTL_EOL); 334 sysctl_createv(clog, 0, NULL, NULL, 335 CTLFLAG_PERMANENT, 336 CTLTYPE_STRUCT, "file", 337 SYSCTL_DESCR("System open file table"), 338 sysctl_kern_file, 0, NULL, 0, 339 CTL_KERN, KERN_FILE, CTL_EOL); 340 #ifndef GPROF 341 sysctl_createv(clog, 0, NULL, NULL, 342 CTLFLAG_PERMANENT, 343 CTLTYPE_NODE, "profiling", 344 SYSCTL_DESCR("Profiling information (not available)"), 345 sysctl_notavail, 0, NULL, 0, 346 CTL_KERN, KERN_PROF, CTL_EOL); 347 #endif 348 sysctl_createv(clog, 0, NULL, NULL, 349 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 350 CTLTYPE_INT, "posix1version", 351 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 352 "with which the operating system attempts " 353 "to comply"), 354 NULL, _POSIX_VERSION, NULL, 0, 355 CTL_KERN, KERN_POSIX1, CTL_EOL); 356 sysctl_createv(clog, 0, NULL, NULL, 357 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 358 CTLTYPE_INT, "ngroups", 359 SYSCTL_DESCR("Maximum number of supplemental groups"), 360 NULL, NGROUPS_MAX, NULL, 0, 361 CTL_KERN, KERN_NGROUPS, CTL_EOL); 362 sysctl_createv(clog, 0, NULL, NULL, 363 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 364 CTLTYPE_INT, "job_control", 365 SYSCTL_DESCR("Whether job control is available"), 366 NULL, 1, NULL, 0, 367 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 368 sysctl_createv(clog, 0, NULL, NULL, 369 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 370 CTLTYPE_INT, "saved_ids", 371 SYSCTL_DESCR("Whether saved set-group/user ID is " 372 "available"), NULL, 373 #ifdef _POSIX_SAVED_IDS 374 1, 375 #else /* _POSIX_SAVED_IDS */ 376 0, 377 #endif /* _POSIX_SAVED_IDS */ 378 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 379 sysctl_createv(clog, 0, NULL, NULL, 380 CTLFLAG_PERMANENT, 381 CTLTYPE_STRUCT, "boottime", 382 SYSCTL_DESCR("System boot time"), 383 NULL, 0, &boottime, sizeof(boottime), 384 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 385 sysctl_createv(clog, 0, NULL, NULL, 386 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 387 CTLTYPE_STRING, "domainname", 388 SYSCTL_DESCR("YP domain name"), 389 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 390 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 391 sysctl_createv(clog, 0, NULL, NULL, 392 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 393 CTLTYPE_INT, "maxpartitions", 394 SYSCTL_DESCR("Maximum number of partitions allowed per " 395 "disk"), 396 NULL, MAXPARTITIONS, NULL, 0, 397 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 398 sysctl_createv(clog, 0, NULL, NULL, 399 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 400 CTLTYPE_INT, "rawpartition", 401 SYSCTL_DESCR("Raw partition of a disk"), 402 NULL, RAW_PART, NULL, 0, 403 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 404 sysctl_createv(clog, 0, NULL, NULL, 405 CTLFLAG_PERMANENT, 406 CTLTYPE_STRUCT, "timex", NULL, 407 sysctl_notavail, 0, NULL, 0, 408 CTL_KERN, KERN_TIMEX, CTL_EOL); 409 sysctl_createv(clog, 0, NULL, NULL, 410 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 411 CTLTYPE_INT, "autonicetime", 412 SYSCTL_DESCR("CPU clock seconds before non-root " 413 "process priority is lowered"), 414 sysctl_kern_autonice, 0, &autonicetime, 0, 415 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 416 sysctl_createv(clog, 0, NULL, NULL, 417 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 418 CTLTYPE_INT, "autoniceval", 419 SYSCTL_DESCR("Automatic reniced non-root process " 420 "priority"), 421 sysctl_kern_autonice, 0, &autoniceval, 0, 422 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 423 sysctl_createv(clog, 0, NULL, NULL, 424 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 425 CTLTYPE_INT, "rtc_offset", 426 SYSCTL_DESCR("Offset of real time clock from UTC in " 427 "minutes"), 428 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 429 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 430 sysctl_createv(clog, 0, NULL, NULL, 431 CTLFLAG_PERMANENT, 432 CTLTYPE_STRING, "root_device", 433 SYSCTL_DESCR("Name of the root device"), 434 sysctl_root_device, 0, NULL, 0, 435 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 436 sysctl_createv(clog, 0, NULL, NULL, 437 CTLFLAG_PERMANENT, 438 CTLTYPE_INT, "msgbufsize", 439 SYSCTL_DESCR("Size of the kernel message buffer"), 440 sysctl_msgbuf, 0, NULL, 0, 441 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 442 sysctl_createv(clog, 0, NULL, NULL, 443 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 444 CTLTYPE_INT, "fsync", 445 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 446 "Synchronization Option is available on " 447 "this system"), 448 NULL, 1, NULL, 0, 449 CTL_KERN, KERN_FSYNC, CTL_EOL); 450 sysctl_createv(clog, 0, NULL, NULL, 451 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 452 CTLTYPE_INT, "sysvmsg", 453 SYSCTL_DESCR("System V style message support available"), 454 NULL, 455 #ifdef SYSVMSG 456 1, 457 #else /* SYSVMSG */ 458 0, 459 #endif /* SYSVMSG */ 460 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 461 sysctl_createv(clog, 0, NULL, NULL, 462 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 463 CTLTYPE_INT, "sysvsem", 464 SYSCTL_DESCR("System V style semaphore support " 465 "available"), NULL, 466 #ifdef SYSVSEM 467 1, 468 #else /* SYSVSEM */ 469 0, 470 #endif /* SYSVSEM */ 471 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 472 sysctl_createv(clog, 0, NULL, NULL, 473 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 474 CTLTYPE_INT, "sysvshm", 475 SYSCTL_DESCR("System V style shared memory support " 476 "available"), NULL, 477 #ifdef SYSVSHM 478 1, 479 #else /* SYSVSHM */ 480 0, 481 #endif /* SYSVSHM */ 482 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 483 sysctl_createv(clog, 0, NULL, NULL, 484 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 485 CTLTYPE_INT, "synchronized_io", 486 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 487 "I/O Option is available on this system"), 488 NULL, 1, NULL, 0, 489 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 490 sysctl_createv(clog, 0, NULL, NULL, 491 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 492 CTLTYPE_INT, "iov_max", 493 SYSCTL_DESCR("Maximum number of iovec structures per " 494 "process"), 495 NULL, IOV_MAX, NULL, 0, 496 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 497 sysctl_createv(clog, 0, NULL, NULL, 498 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 499 CTLTYPE_INT, "mapped_files", 500 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 501 "Files Option is available on this system"), 502 NULL, 1, NULL, 0, 503 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 504 sysctl_createv(clog, 0, NULL, NULL, 505 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 506 CTLTYPE_INT, "memlock", 507 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 508 "Locking Option is available on this " 509 "system"), 510 NULL, 1, NULL, 0, 511 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 512 sysctl_createv(clog, 0, NULL, NULL, 513 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 514 CTLTYPE_INT, "memlock_range", 515 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 516 "Locking Option is available on this " 517 "system"), 518 NULL, 1, NULL, 0, 519 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 520 sysctl_createv(clog, 0, NULL, NULL, 521 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 522 CTLTYPE_INT, "memory_protection", 523 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 524 "Protection Option is available on this " 525 "system"), 526 NULL, 1, NULL, 0, 527 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 528 sysctl_createv(clog, 0, NULL, NULL, 529 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 530 CTLTYPE_INT, "login_name_max", 531 SYSCTL_DESCR("Maximum login name length"), 532 NULL, LOGIN_NAME_MAX, NULL, 0, 533 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 534 sysctl_createv(clog, 0, NULL, NULL, 535 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 536 CTLTYPE_STRING, "defcorename", 537 SYSCTL_DESCR("Default core file name"), 538 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 539 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 540 sysctl_createv(clog, 0, NULL, NULL, 541 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 542 CTLTYPE_INT, "logsigexit", 543 SYSCTL_DESCR("Log process exit when caused by signals"), 544 NULL, 0, &kern_logsigexit, 0, 545 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 546 sysctl_createv(clog, 0, NULL, NULL, 547 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 548 CTLTYPE_INT, "fscale", 549 SYSCTL_DESCR("Kernel fixed-point scale factor"), 550 NULL, FSCALE, NULL, 0, 551 CTL_KERN, KERN_FSCALE, CTL_EOL); 552 sysctl_createv(clog, 0, NULL, NULL, 553 CTLFLAG_PERMANENT, 554 CTLTYPE_INT, "ccpu", 555 SYSCTL_DESCR("Scheduler exponential decay value"), 556 NULL, 0, &ccpu, 0, 557 CTL_KERN, KERN_CCPU, CTL_EOL); 558 sysctl_createv(clog, 0, NULL, NULL, 559 CTLFLAG_PERMANENT, 560 CTLTYPE_STRUCT, "cp_time", 561 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 562 sysctl_kern_cptime, 0, NULL, 0, 563 CTL_KERN, KERN_CP_TIME, CTL_EOL); 564 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 565 sysctl_createv(clog, 0, NULL, NULL, 566 CTLFLAG_PERMANENT, 567 CTLTYPE_STRUCT, "sysvipc_info", 568 SYSCTL_DESCR("System V style IPC information"), 569 sysctl_kern_sysvipc, 0, NULL, 0, 570 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 571 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 572 sysctl_createv(clog, 0, NULL, NULL, 573 CTLFLAG_PERMANENT, 574 CTLTYPE_INT, "msgbuf", 575 SYSCTL_DESCR("Kernel message buffer"), 576 sysctl_msgbuf, 0, NULL, 0, 577 CTL_KERN, KERN_MSGBUF, CTL_EOL); 578 sysctl_createv(clog, 0, NULL, NULL, 579 CTLFLAG_PERMANENT, 580 CTLTYPE_STRUCT, "consdev", 581 SYSCTL_DESCR("Console device"), 582 sysctl_consdev, 0, NULL, sizeof(dev_t), 583 CTL_KERN, KERN_CONSDEV, CTL_EOL); 584 #if NPTY > 0 585 sysctl_createv(clog, 0, NULL, NULL, 586 CTLFLAG_PERMANENT, 587 CTLTYPE_INT, "maxptys", 588 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 589 sysctl_kern_maxptys, 0, NULL, 0, 590 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 591 #endif /* NPTY > 0 */ 592 sysctl_createv(clog, 0, NULL, NULL, 593 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 594 CTLTYPE_INT, "maxphys", 595 SYSCTL_DESCR("Maximum raw I/O transfer size"), 596 NULL, MAXPHYS, NULL, 0, 597 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 598 sysctl_createv(clog, 0, NULL, NULL, 599 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 600 CTLTYPE_INT, "sbmax", 601 SYSCTL_DESCR("Maximum socket buffer size"), 602 sysctl_kern_sbmax, 0, NULL, 0, 603 CTL_KERN, KERN_SBMAX, CTL_EOL); 604 sysctl_createv(clog, 0, NULL, NULL, 605 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 606 CTLTYPE_INT, "monotonic_clock", 607 SYSCTL_DESCR("Implementation version of the POSIX " 608 "1003.1b Monotonic Clock Option"), 609 /* XXX _POSIX_VERSION */ 610 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 611 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 612 sysctl_createv(clog, 0, NULL, NULL, 613 CTLFLAG_PERMANENT, 614 CTLTYPE_INT, "urandom", 615 SYSCTL_DESCR("Random integer value"), 616 sysctl_kern_urnd, 0, NULL, 0, 617 CTL_KERN, KERN_URND, CTL_EOL); 618 sysctl_createv(clog, 0, NULL, NULL, 619 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 620 CTLTYPE_INT, "labelsector", 621 SYSCTL_DESCR("Sector number containing the disklabel"), 622 NULL, LABELSECTOR, NULL, 0, 623 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 624 sysctl_createv(clog, 0, NULL, NULL, 625 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 626 CTLTYPE_INT, "labeloffset", 627 SYSCTL_DESCR("Offset of the disklabel within the " 628 "sector"), 629 NULL, LABELOFFSET, NULL, 0, 630 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 631 sysctl_createv(clog, 0, NULL, NULL, 632 CTLFLAG_PERMANENT, 633 CTLTYPE_NODE, "lwp", 634 SYSCTL_DESCR("System-wide LWP information"), 635 sysctl_kern_lwp, 0, NULL, 0, 636 CTL_KERN, KERN_LWP, CTL_EOL); 637 sysctl_createv(clog, 0, NULL, NULL, 638 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 639 CTLTYPE_INT, "forkfsleep", 640 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 641 "to process limits"), 642 sysctl_kern_forkfsleep, 0, NULL, 0, 643 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 644 sysctl_createv(clog, 0, NULL, NULL, 645 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 646 CTLTYPE_INT, "posix_threads", 647 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 648 "Threads option to which the system " 649 "attempts to conform"), 650 /* XXX _POSIX_VERSION */ 651 NULL, _POSIX_THREADS, NULL, 0, 652 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 653 sysctl_createv(clog, 0, NULL, NULL, 654 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 655 CTLTYPE_INT, "posix_semaphores", 656 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 657 "Semaphores option to which the system " 658 "attempts to conform"), NULL, 659 #ifdef P1003_1B_SEMAPHORE 660 200112, 661 #else /* P1003_1B_SEMAPHORE */ 662 0, 663 #endif /* P1003_1B_SEMAPHORE */ 664 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 665 sysctl_createv(clog, 0, NULL, NULL, 666 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 667 CTLTYPE_INT, "posix_barriers", 668 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 669 "Barriers option to which the system " 670 "attempts to conform"), 671 /* XXX _POSIX_VERSION */ 672 NULL, _POSIX_BARRIERS, NULL, 0, 673 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 674 sysctl_createv(clog, 0, NULL, NULL, 675 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 676 CTLTYPE_INT, "posix_timers", 677 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 678 "Timers option to which the system " 679 "attempts to conform"), 680 /* XXX _POSIX_VERSION */ 681 NULL, _POSIX_TIMERS, NULL, 0, 682 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 683 sysctl_createv(clog, 0, NULL, NULL, 684 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 685 CTLTYPE_INT, "posix_spin_locks", 686 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 687 "Locks option to which the system attempts " 688 "to conform"), 689 /* XXX _POSIX_VERSION */ 690 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 691 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 692 sysctl_createv(clog, 0, NULL, NULL, 693 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 694 CTLTYPE_INT, "posix_reader_writer_locks", 695 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 696 "Read-Write Locks option to which the " 697 "system attempts to conform"), 698 /* XXX _POSIX_VERSION */ 699 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 700 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 701 sysctl_createv(clog, 0, NULL, NULL, 702 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 703 CTLTYPE_INT, "dump_on_panic", 704 SYSCTL_DESCR("Perform a crash dump on system panic"), 705 NULL, 0, &dumponpanic, 0, 706 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 707 sysctl_createv(clog, 0, NULL, NULL, 708 CTLFLAG_PERMANENT, 709 CTLTYPE_INT, "root_partition", 710 SYSCTL_DESCR("Root partition on the root device"), 711 sysctl_kern_root_partition, 0, NULL, 0, 712 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 713 sysctl_createv(clog, 0, NULL, NULL, 714 CTLFLAG_PERMANENT, 715 CTLTYPE_STRUCT, "drivers", 716 SYSCTL_DESCR("List of all drivers with block and " 717 "character device numbers"), 718 sysctl_kern_drivers, 0, NULL, 0, 719 CTL_KERN, KERN_DRIVERS, CTL_EOL); 720 } 721 722 SYSCTL_SETUP(sysctl_kern_proc_setup, 723 "sysctl kern.proc/proc2/proc_args subtree setup") 724 { 725 726 sysctl_createv(clog, 0, NULL, NULL, 727 CTLFLAG_PERMANENT, 728 CTLTYPE_NODE, "kern", NULL, 729 NULL, 0, NULL, 0, 730 CTL_KERN, CTL_EOL); 731 732 sysctl_createv(clog, 0, NULL, NULL, 733 CTLFLAG_PERMANENT, 734 CTLTYPE_NODE, "proc", 735 SYSCTL_DESCR("System-wide process information"), 736 sysctl_doeproc, 0, NULL, 0, 737 CTL_KERN, KERN_PROC, CTL_EOL); 738 sysctl_createv(clog, 0, NULL, NULL, 739 CTLFLAG_PERMANENT, 740 CTLTYPE_NODE, "proc2", 741 SYSCTL_DESCR("Machine-independent process information"), 742 sysctl_doeproc, 0, NULL, 0, 743 CTL_KERN, KERN_PROC2, CTL_EOL); 744 sysctl_createv(clog, 0, NULL, NULL, 745 CTLFLAG_PERMANENT, 746 CTLTYPE_NODE, "proc_args", 747 SYSCTL_DESCR("Process argument information"), 748 sysctl_kern_proc_args, 0, NULL, 0, 749 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 750 751 /* 752 "nodes" under these: 753 754 KERN_PROC_ALL 755 KERN_PROC_PID pid 756 KERN_PROC_PGRP pgrp 757 KERN_PROC_SESSION sess 758 KERN_PROC_TTY tty 759 KERN_PROC_UID uid 760 KERN_PROC_RUID uid 761 KERN_PROC_GID gid 762 KERN_PROC_RGID gid 763 764 all in all, probably not worth the effort... 765 */ 766 } 767 768 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 769 { 770 u_int u; 771 u_quad_t q; 772 773 sysctl_createv(clog, 0, NULL, NULL, 774 CTLFLAG_PERMANENT, 775 CTLTYPE_NODE, "hw", NULL, 776 NULL, 0, NULL, 0, 777 CTL_HW, CTL_EOL); 778 779 sysctl_createv(clog, 0, NULL, NULL, 780 CTLFLAG_PERMANENT, 781 CTLTYPE_STRING, "machine", 782 SYSCTL_DESCR("Machine class"), 783 NULL, 0, machine, 0, 784 CTL_HW, HW_MACHINE, CTL_EOL); 785 sysctl_createv(clog, 0, NULL, NULL, 786 CTLFLAG_PERMANENT, 787 CTLTYPE_STRING, "model", 788 SYSCTL_DESCR("Machine model"), 789 NULL, 0, cpu_model, 0, 790 CTL_HW, HW_MODEL, CTL_EOL); 791 sysctl_createv(clog, 0, NULL, NULL, 792 CTLFLAG_PERMANENT, 793 CTLTYPE_INT, "ncpu", 794 SYSCTL_DESCR("Number of active CPUs"), 795 sysctl_hw_ncpu, 0, NULL, 0, 796 CTL_HW, HW_NCPU, CTL_EOL); 797 sysctl_createv(clog, 0, NULL, NULL, 798 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 799 CTLTYPE_INT, "byteorder", 800 SYSCTL_DESCR("System byte order"), 801 NULL, BYTE_ORDER, NULL, 0, 802 CTL_HW, HW_BYTEORDER, CTL_EOL); 803 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 804 UINT_MAX : physmem * PAGE_SIZE; 805 sysctl_createv(clog, 0, NULL, NULL, 806 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 807 CTLTYPE_INT, "physmem", 808 SYSCTL_DESCR("Bytes of physical memory"), 809 NULL, u, NULL, 0, 810 CTL_HW, HW_PHYSMEM, CTL_EOL); 811 sysctl_createv(clog, 0, NULL, NULL, 812 CTLFLAG_PERMANENT, 813 CTLTYPE_INT, "usermem", 814 SYSCTL_DESCR("Bytes of non-kernel memory"), 815 sysctl_hw_usermem, 0, NULL, 0, 816 CTL_HW, HW_USERMEM, CTL_EOL); 817 sysctl_createv(clog, 0, NULL, NULL, 818 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 819 CTLTYPE_INT, "pagesize", 820 SYSCTL_DESCR("Software page size"), 821 NULL, PAGE_SIZE, NULL, 0, 822 CTL_HW, HW_PAGESIZE, CTL_EOL); 823 sysctl_createv(clog, 0, NULL, NULL, 824 CTLFLAG_PERMANENT, 825 CTLTYPE_STRING, "disknames", 826 SYSCTL_DESCR("List of disk devices present"), 827 sysctl_hw_disknames, 0, NULL, 0, 828 CTL_HW, HW_DISKNAMES, CTL_EOL); 829 sysctl_createv(clog, 0, NULL, NULL, 830 CTLFLAG_PERMANENT, 831 CTLTYPE_STRUCT, "diskstats", 832 SYSCTL_DESCR("Statistics on disk operation"), 833 sysctl_hw_diskstats, 0, NULL, 0, 834 CTL_HW, HW_DISKSTATS, CTL_EOL); 835 sysctl_createv(clog, 0, NULL, NULL, 836 CTLFLAG_PERMANENT, 837 CTLTYPE_STRING, "machine_arch", 838 SYSCTL_DESCR("Machine CPU class"), 839 NULL, 0, machine_arch, 0, 840 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 841 sysctl_createv(clog, 0, NULL, NULL, 842 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 843 CTLTYPE_INT, "alignbytes", 844 SYSCTL_DESCR("Alignment constraint for all possible " 845 "data types"), 846 NULL, ALIGNBYTES, NULL, 0, 847 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 848 sysctl_createv(clog, 0, NULL, NULL, 849 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 850 CTLTYPE_STRING, "cnmagic", 851 SYSCTL_DESCR("Console magic key sequence"), 852 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 853 CTL_HW, HW_CNMAGIC, CTL_EOL); 854 q = (u_quad_t)physmem * PAGE_SIZE; 855 sysctl_createv(clog, 0, NULL, NULL, 856 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 857 CTLTYPE_QUAD, "physmem64", 858 SYSCTL_DESCR("Bytes of physical memory"), 859 NULL, q, NULL, 0, 860 CTL_HW, HW_PHYSMEM64, CTL_EOL); 861 sysctl_createv(clog, 0, NULL, NULL, 862 CTLFLAG_PERMANENT, 863 CTLTYPE_QUAD, "usermem64", 864 SYSCTL_DESCR("Bytes of non-kernel memory"), 865 sysctl_hw_usermem, 0, NULL, 0, 866 CTL_HW, HW_USERMEM64, CTL_EOL); 867 } 868 869 #ifdef DEBUG 870 /* 871 * Debugging related system variables. 872 */ 873 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 874 struct ctldebug debug5, debug6, debug7, debug8, debug9; 875 struct ctldebug debug10, debug11, debug12, debug13, debug14; 876 struct ctldebug debug15, debug16, debug17, debug18, debug19; 877 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 878 &debug0, &debug1, &debug2, &debug3, &debug4, 879 &debug5, &debug6, &debug7, &debug8, &debug9, 880 &debug10, &debug11, &debug12, &debug13, &debug14, 881 &debug15, &debug16, &debug17, &debug18, &debug19, 882 }; 883 884 /* 885 * this setup routine is a replacement for debug_sysctl() 886 * 887 * note that it creates several nodes per defined debug variable 888 */ 889 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 890 { 891 struct ctldebug *cdp; 892 char nodename[20]; 893 int i; 894 895 /* 896 * two ways here: 897 * 898 * the "old" way (debug.name -> value) which was emulated by 899 * the sysctl(8) binary 900 * 901 * the new way, which the sysctl(8) binary was actually using 902 903 node debug 904 node debug.0 905 string debug.0.name 906 int debug.0.value 907 int debug.name 908 909 */ 910 911 sysctl_createv(clog, 0, NULL, NULL, 912 CTLFLAG_PERMANENT, 913 CTLTYPE_NODE, "debug", NULL, 914 NULL, 0, NULL, 0, 915 CTL_DEBUG, CTL_EOL); 916 917 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 918 cdp = debugvars[i]; 919 if (cdp->debugname == NULL || cdp->debugvar == NULL) 920 continue; 921 922 snprintf(nodename, sizeof(nodename), "debug%d", i); 923 sysctl_createv(clog, 0, NULL, NULL, 924 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 925 CTLTYPE_NODE, nodename, NULL, 926 NULL, 0, NULL, 0, 927 CTL_DEBUG, i, CTL_EOL); 928 sysctl_createv(clog, 0, NULL, NULL, 929 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 930 CTLTYPE_STRING, "name", NULL, 931 NULL, 0, cdp->debugname, 0, 932 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 933 sysctl_createv(clog, 0, NULL, NULL, 934 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 935 CTLTYPE_INT, "value", NULL, 936 NULL, 0, cdp->debugvar, 0, 937 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 938 sysctl_createv(clog, 0, NULL, NULL, 939 CTLFLAG_PERMANENT, 940 CTLTYPE_INT, cdp->debugname, NULL, 941 NULL, 0, cdp->debugvar, 0, 942 CTL_DEBUG, CTL_CREATE, CTL_EOL); 943 } 944 } 945 #endif /* DEBUG */ 946 947 /* 948 * ******************************************************************** 949 * section 2: private node-specific helper routines. 950 * ******************************************************************** 951 */ 952 953 /* 954 * sysctl helper routine for kern.maxvnodes. drain vnodes if 955 * new value is lower than desiredvnodes and then calls reinit 956 * routines that needs to adjust to the new value. 957 */ 958 static int 959 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 960 { 961 int error, new_vnodes, old_vnodes; 962 struct sysctlnode node; 963 964 new_vnodes = desiredvnodes; 965 node = *rnode; 966 node.sysctl_data = &new_vnodes; 967 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 968 if (error || newp == NULL) 969 return (error); 970 971 old_vnodes = desiredvnodes; 972 desiredvnodes = new_vnodes; 973 if (new_vnodes < old_vnodes) { 974 error = vfs_drainvnodes(new_vnodes, l->l_proc); 975 if (error) { 976 desiredvnodes = old_vnodes; 977 return (error); 978 } 979 } 980 vfs_reinit(); 981 nchreinit(); 982 983 return (0); 984 } 985 986 /* 987 * sysctl helper routine for rtc_offset - set time after changes 988 */ 989 static int 990 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 991 { 992 struct timeval tv, delta; 993 int s, error, new_rtc_offset; 994 struct sysctlnode node; 995 996 new_rtc_offset = rtc_offset; 997 node = *rnode; 998 node.sysctl_data = &new_rtc_offset; 999 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1000 if (error || newp == NULL) 1001 return (error); 1002 1003 if (securelevel > 0) 1004 return (EPERM); 1005 if (rtc_offset == new_rtc_offset) 1006 return (0); 1007 1008 /* if we change the offset, adjust the time */ 1009 s = splclock(); 1010 tv = time; 1011 splx(s); 1012 delta.tv_sec = 60*(new_rtc_offset - rtc_offset); 1013 delta.tv_usec = 0; 1014 timeradd(&tv, &delta, &tv); 1015 rtc_offset = new_rtc_offset; 1016 settime(&tv); 1017 1018 return (0); 1019 } 1020 1021 /* 1022 * sysctl helper routine for kern.maxvnodes. ensures that the new 1023 * values are not too low or too high. 1024 */ 1025 static int 1026 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1027 { 1028 int error, nmaxproc; 1029 struct sysctlnode node; 1030 1031 nmaxproc = maxproc; 1032 node = *rnode; 1033 node.sysctl_data = &nmaxproc; 1034 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1035 if (error || newp == NULL) 1036 return (error); 1037 1038 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1039 return (EINVAL); 1040 #ifdef __HAVE_CPU_MAXPROC 1041 if (nmaxproc > cpu_maxproc()) 1042 return (EINVAL); 1043 #endif 1044 maxproc = nmaxproc; 1045 1046 return (0); 1047 } 1048 1049 /* 1050 * sysctl helper routine for kern.securelevel. ensures that the value 1051 * only rises unless the caller has pid 1 (assumed to be init). 1052 */ 1053 static int 1054 sysctl_kern_securelevel(SYSCTLFN_ARGS) 1055 { 1056 int newsecurelevel, error; 1057 struct sysctlnode node; 1058 1059 newsecurelevel = securelevel; 1060 node = *rnode; 1061 node.sysctl_data = &newsecurelevel; 1062 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1063 if (error || newp == NULL) 1064 return (error); 1065 1066 if (newsecurelevel < securelevel && l && l->l_proc->p_pid != 1) 1067 return (EPERM); 1068 securelevel = newsecurelevel; 1069 1070 return (error); 1071 } 1072 1073 /* 1074 * sysctl helper function for kern.hostid. the hostid is a long, but 1075 * we export it as an int, so we need to give it a little help. 1076 */ 1077 static int 1078 sysctl_kern_hostid(SYSCTLFN_ARGS) 1079 { 1080 int error, inthostid; 1081 struct sysctlnode node; 1082 1083 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1084 node = *rnode; 1085 node.sysctl_data = &inthostid; 1086 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1087 if (error || newp == NULL) 1088 return (error); 1089 1090 hostid = (unsigned)inthostid; 1091 1092 return (0); 1093 } 1094 1095 /* 1096 * sysctl helper function for kern.hostname and kern.domainnname. 1097 * resets the relevant recorded length when the underlying name is 1098 * changed. 1099 */ 1100 static int 1101 sysctl_setlen(SYSCTLFN_ARGS) 1102 { 1103 int error; 1104 1105 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1106 if (error || newp == NULL) 1107 return (error); 1108 1109 switch (rnode->sysctl_num) { 1110 case KERN_HOSTNAME: 1111 hostnamelen = strlen((const char*)rnode->sysctl_data); 1112 break; 1113 case KERN_DOMAINNAME: 1114 domainnamelen = strlen((const char*)rnode->sysctl_data); 1115 break; 1116 } 1117 1118 return (0); 1119 } 1120 1121 /* 1122 * sysctl helper routine for kern.clockrate. assembles a struct on 1123 * the fly to be returned to the caller. 1124 */ 1125 static int 1126 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1127 { 1128 struct clockinfo clkinfo; 1129 struct sysctlnode node; 1130 1131 clkinfo.tick = tick; 1132 clkinfo.tickadj = tickadj; 1133 clkinfo.hz = hz; 1134 clkinfo.profhz = profhz; 1135 clkinfo.stathz = stathz ? stathz : hz; 1136 1137 node = *rnode; 1138 node.sysctl_data = &clkinfo; 1139 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1140 } 1141 1142 1143 /* 1144 * sysctl helper routine for kern.file pseudo-subtree. 1145 */ 1146 static int 1147 sysctl_kern_file(SYSCTLFN_ARGS) 1148 { 1149 int error; 1150 size_t buflen; 1151 struct file *fp; 1152 char *start, *where; 1153 1154 start = where = oldp; 1155 buflen = *oldlenp; 1156 if (where == NULL) { 1157 /* 1158 * overestimate by 10 files 1159 */ 1160 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1161 return (0); 1162 } 1163 1164 /* 1165 * first copyout filehead 1166 */ 1167 if (buflen < sizeof(filehead)) { 1168 *oldlenp = 0; 1169 return (0); 1170 } 1171 error = copyout(&filehead, where, sizeof(filehead)); 1172 if (error) 1173 return (error); 1174 buflen -= sizeof(filehead); 1175 where += sizeof(filehead); 1176 1177 /* 1178 * followed by an array of file structures 1179 */ 1180 LIST_FOREACH(fp, &filehead, f_list) { 1181 if (buflen < sizeof(struct file)) { 1182 *oldlenp = where - start; 1183 return (ENOMEM); 1184 } 1185 error = copyout(fp, where, sizeof(struct file)); 1186 if (error) 1187 return (error); 1188 buflen -= sizeof(struct file); 1189 where += sizeof(struct file); 1190 } 1191 *oldlenp = where - start; 1192 return (0); 1193 } 1194 1195 /* 1196 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1197 * asserts that the assigned value is in the correct range. 1198 */ 1199 static int 1200 sysctl_kern_autonice(SYSCTLFN_ARGS) 1201 { 1202 int error, t = 0; 1203 struct sysctlnode node; 1204 1205 node = *rnode; 1206 t = *(int*)node.sysctl_data; 1207 node.sysctl_data = &t; 1208 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1209 if (error || newp == NULL) 1210 return (error); 1211 1212 switch (node.sysctl_num) { 1213 case KERN_AUTONICETIME: 1214 if (t >= 0) 1215 autonicetime = t; 1216 break; 1217 case KERN_AUTONICEVAL: 1218 if (t < PRIO_MIN) 1219 t = PRIO_MIN; 1220 else if (t > PRIO_MAX) 1221 t = PRIO_MAX; 1222 autoniceval = t; 1223 break; 1224 } 1225 1226 return (0); 1227 } 1228 1229 /* 1230 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1231 * former it merely checks the the message buffer is set up. for the 1232 * latter, it also copies out the data if necessary. 1233 */ 1234 static int 1235 sysctl_msgbuf(SYSCTLFN_ARGS) 1236 { 1237 char *where = oldp; 1238 size_t len, maxlen; 1239 long beg, end; 1240 int error; 1241 1242 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1243 msgbufenabled = 0; 1244 return (ENXIO); 1245 } 1246 1247 switch (rnode->sysctl_num) { 1248 case KERN_MSGBUFSIZE: { 1249 struct sysctlnode node = *rnode; 1250 int msg_bufs = (int)msgbufp->msg_bufs; 1251 node.sysctl_data = &msg_bufs; 1252 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1253 } 1254 case KERN_MSGBUF: 1255 break; 1256 default: 1257 return (EOPNOTSUPP); 1258 } 1259 1260 if (newp != NULL) 1261 return (EPERM); 1262 1263 if (oldp == NULL) { 1264 /* always return full buffer size */ 1265 *oldlenp = msgbufp->msg_bufs; 1266 return (0); 1267 } 1268 1269 error = 0; 1270 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1271 1272 /* 1273 * First, copy from the write pointer to the end of 1274 * message buffer. 1275 */ 1276 beg = msgbufp->msg_bufx; 1277 end = msgbufp->msg_bufs; 1278 while (maxlen > 0) { 1279 len = MIN(end - beg, maxlen); 1280 if (len == 0) 1281 break; 1282 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1283 if (error) 1284 break; 1285 where += len; 1286 maxlen -= len; 1287 1288 /* 1289 * ... then, copy from the beginning of message buffer to 1290 * the write pointer. 1291 */ 1292 beg = 0; 1293 end = msgbufp->msg_bufx; 1294 } 1295 1296 return (error); 1297 } 1298 1299 /* 1300 * sysctl helper routine for kern.defcorename. in the case of a new 1301 * string being assigned, check that it's not a zero-length string. 1302 * (XXX the check in -current doesn't work, but do we really care?) 1303 */ 1304 static int 1305 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1306 { 1307 int error; 1308 char newcorename[MAXPATHLEN]; 1309 struct sysctlnode node; 1310 1311 node = *rnode; 1312 node.sysctl_data = &newcorename[0]; 1313 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1314 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1315 if (error || newp == NULL) 1316 return (error); 1317 1318 /* 1319 * when sysctl_lookup() deals with a string, it's guaranteed 1320 * to come back nul terminated. so there. :) 1321 */ 1322 if (strlen(newcorename) == 0) 1323 return (EINVAL); 1324 1325 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1326 1327 return (0); 1328 } 1329 1330 /* 1331 * sysctl helper routine for kern.cp_time node. adds up cpu time 1332 * across all cpus. 1333 */ 1334 static int 1335 sysctl_kern_cptime(SYSCTLFN_ARGS) 1336 { 1337 struct sysctlnode node = *rnode; 1338 1339 #ifndef MULTIPROCESSOR 1340 1341 if (namelen == 1) { 1342 if (name[0] != 0) 1343 return (ENOENT); 1344 /* 1345 * you're allowed to ask for the zero'th processor 1346 */ 1347 name++; 1348 namelen--; 1349 } 1350 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1351 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1352 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1353 1354 #else /* MULTIPROCESSOR */ 1355 1356 u_int64_t *cp_time = NULL; 1357 int error, n = sysctl_ncpus(), i; 1358 struct cpu_info *ci; 1359 CPU_INFO_ITERATOR cii; 1360 1361 /* 1362 * if you specifically pass a buffer that is the size of the 1363 * sum, or if you are probing for the size, you get the "sum" 1364 * of cp_time (and the size thereof) across all processors. 1365 * 1366 * alternately, you can pass an additional mib number and get 1367 * cp_time for that particular processor. 1368 */ 1369 switch (namelen) { 1370 case 0: 1371 if (*oldlenp == sizeof(u_int64_t) * CPUSTATES || oldp == NULL) { 1372 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1373 n = -1; /* SUM */ 1374 } 1375 else { 1376 node.sysctl_size = n * sizeof(u_int64_t) * CPUSTATES; 1377 n = -2; /* ALL */ 1378 } 1379 break; 1380 case 1: 1381 if (name[0] < 0 || name[0] >= n) 1382 return (ENOENT); /* ENOSUCHPROCESSOR */ 1383 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1384 n = name[0]; 1385 /* 1386 * adjust these so that sysctl_lookup() will be happy 1387 */ 1388 name++; 1389 namelen--; 1390 break; 1391 default: 1392 return (EINVAL); 1393 } 1394 1395 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1396 if (cp_time == NULL) 1397 return (ENOMEM); 1398 node.sysctl_data = cp_time; 1399 memset(cp_time, 0, node.sysctl_size); 1400 1401 for (CPU_INFO_FOREACH(cii, ci)) { 1402 if (n <= 0) 1403 for (i = 0; i < CPUSTATES; i++) 1404 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1405 /* 1406 * if a specific processor was requested and we just 1407 * did it, we're done here 1408 */ 1409 if (n == 0) 1410 break; 1411 /* 1412 * if doing "all", skip to next cp_time set for next processor 1413 */ 1414 if (n == -2) 1415 cp_time += CPUSTATES; 1416 /* 1417 * if we're doing a specific processor, we're one 1418 * processor closer 1419 */ 1420 if (n > 0) 1421 n--; 1422 } 1423 1424 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1425 free(node.sysctl_data, M_TEMP); 1426 return (error); 1427 1428 #endif /* MULTIPROCESSOR */ 1429 } 1430 1431 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1432 /* 1433 * sysctl helper routine for kern.sysvipc_info subtree. 1434 */ 1435 1436 #define FILL_PERM(src, dst) do { \ 1437 (dst)._key = (src)._key; \ 1438 (dst).uid = (src).uid; \ 1439 (dst).gid = (src).gid; \ 1440 (dst).cuid = (src).cuid; \ 1441 (dst).cgid = (src).cgid; \ 1442 (dst).mode = (src).mode; \ 1443 (dst)._seq = (src)._seq; \ 1444 } while (/*CONSTCOND*/ 0); 1445 #define FILL_MSG(src, dst) do { \ 1446 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1447 (dst).msg_qnum = (src).msg_qnum; \ 1448 (dst).msg_qbytes = (src).msg_qbytes; \ 1449 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1450 (dst).msg_lspid = (src).msg_lspid; \ 1451 (dst).msg_lrpid = (src).msg_lrpid; \ 1452 (dst).msg_stime = (src).msg_stime; \ 1453 (dst).msg_rtime = (src).msg_rtime; \ 1454 (dst).msg_ctime = (src).msg_ctime; \ 1455 } while (/*CONSTCOND*/ 0) 1456 #define FILL_SEM(src, dst) do { \ 1457 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1458 (dst).sem_nsems = (src).sem_nsems; \ 1459 (dst).sem_otime = (src).sem_otime; \ 1460 (dst).sem_ctime = (src).sem_ctime; \ 1461 } while (/*CONSTCOND*/ 0) 1462 #define FILL_SHM(src, dst) do { \ 1463 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1464 (dst).shm_segsz = (src).shm_segsz; \ 1465 (dst).shm_lpid = (src).shm_lpid; \ 1466 (dst).shm_cpid = (src).shm_cpid; \ 1467 (dst).shm_atime = (src).shm_atime; \ 1468 (dst).shm_dtime = (src).shm_dtime; \ 1469 (dst).shm_ctime = (src).shm_ctime; \ 1470 (dst).shm_nattch = (src).shm_nattch; \ 1471 } while (/*CONSTCOND*/ 0) 1472 1473 static int 1474 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1475 { 1476 void *where = oldp; 1477 size_t *sizep = oldlenp; 1478 #ifdef SYSVMSG 1479 struct msg_sysctl_info *msgsi = NULL; 1480 #endif 1481 #ifdef SYSVSEM 1482 struct sem_sysctl_info *semsi = NULL; 1483 #endif 1484 #ifdef SYSVSHM 1485 struct shm_sysctl_info *shmsi = NULL; 1486 #endif 1487 size_t infosize, dssize, tsize, buflen; 1488 void *buf = NULL; 1489 char *start; 1490 int32_t nds; 1491 int i, error, ret; 1492 1493 if (namelen != 1) 1494 return (EINVAL); 1495 1496 start = where; 1497 buflen = *sizep; 1498 1499 switch (*name) { 1500 case KERN_SYSVIPC_MSG_INFO: 1501 #ifdef SYSVMSG 1502 infosize = sizeof(msgsi->msginfo); 1503 nds = msginfo.msgmni; 1504 dssize = sizeof(msgsi->msgids[0]); 1505 break; 1506 #else 1507 return (EINVAL); 1508 #endif 1509 case KERN_SYSVIPC_SEM_INFO: 1510 #ifdef SYSVSEM 1511 infosize = sizeof(semsi->seminfo); 1512 nds = seminfo.semmni; 1513 dssize = sizeof(semsi->semids[0]); 1514 break; 1515 #else 1516 return (EINVAL); 1517 #endif 1518 case KERN_SYSVIPC_SHM_INFO: 1519 #ifdef SYSVSHM 1520 infosize = sizeof(shmsi->shminfo); 1521 nds = shminfo.shmmni; 1522 dssize = sizeof(shmsi->shmids[0]); 1523 break; 1524 #else 1525 return (EINVAL); 1526 #endif 1527 default: 1528 return (EINVAL); 1529 } 1530 /* 1531 * Round infosize to 64 bit boundary if requesting more than just 1532 * the info structure or getting the total data size. 1533 */ 1534 if (where == NULL || *sizep > infosize) 1535 infosize = ((infosize + 7) / 8) * 8; 1536 tsize = infosize + nds * dssize; 1537 1538 /* Return just the total size required. */ 1539 if (where == NULL) { 1540 *sizep = tsize; 1541 return (0); 1542 } 1543 1544 /* Not enough room for even the info struct. */ 1545 if (buflen < infosize) { 1546 *sizep = 0; 1547 return (ENOMEM); 1548 } 1549 buf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1550 memset(buf, 0, min(tsize, buflen)); 1551 1552 switch (*name) { 1553 #ifdef SYSVMSG 1554 case KERN_SYSVIPC_MSG_INFO: 1555 msgsi = (struct msg_sysctl_info *)buf; 1556 msgsi->msginfo = msginfo; 1557 break; 1558 #endif 1559 #ifdef SYSVSEM 1560 case KERN_SYSVIPC_SEM_INFO: 1561 semsi = (struct sem_sysctl_info *)buf; 1562 semsi->seminfo = seminfo; 1563 break; 1564 #endif 1565 #ifdef SYSVSHM 1566 case KERN_SYSVIPC_SHM_INFO: 1567 shmsi = (struct shm_sysctl_info *)buf; 1568 shmsi->shminfo = shminfo; 1569 break; 1570 #endif 1571 } 1572 buflen -= infosize; 1573 1574 ret = 0; 1575 if (buflen > 0) { 1576 /* Fill in the IPC data structures. */ 1577 for (i = 0; i < nds; i++) { 1578 if (buflen < dssize) { 1579 ret = ENOMEM; 1580 break; 1581 } 1582 switch (*name) { 1583 #ifdef SYSVMSG 1584 case KERN_SYSVIPC_MSG_INFO: 1585 FILL_MSG(msqids[i], msgsi->msgids[i]); 1586 break; 1587 #endif 1588 #ifdef SYSVSEM 1589 case KERN_SYSVIPC_SEM_INFO: 1590 FILL_SEM(sema[i], semsi->semids[i]); 1591 break; 1592 #endif 1593 #ifdef SYSVSHM 1594 case KERN_SYSVIPC_SHM_INFO: 1595 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1596 break; 1597 #endif 1598 } 1599 buflen -= dssize; 1600 } 1601 } 1602 *sizep -= buflen; 1603 error = copyout(buf, start, *sizep); 1604 /* If copyout succeeded, use return code set earlier. */ 1605 if (error == 0) 1606 error = ret; 1607 if (buf) 1608 free(buf, M_TEMP); 1609 return (error); 1610 } 1611 1612 #undef FILL_PERM 1613 #undef FILL_MSG 1614 #undef FILL_SEM 1615 #undef FILL_SHM 1616 1617 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1618 1619 #if NPTY > 0 1620 /* 1621 * sysctl helper routine for kern.maxptys. ensures that any new value 1622 * is acceptable to the pty subsystem. 1623 */ 1624 static int 1625 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1626 { 1627 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1628 int error, max; 1629 struct sysctlnode node; 1630 1631 /* get current value of maxptys */ 1632 max = pty_maxptys(0, 0); 1633 1634 node = *rnode; 1635 node.sysctl_data = &max; 1636 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1637 if (error || newp == NULL) 1638 return (error); 1639 1640 if (max != pty_maxptys(max, 1)) 1641 return (EINVAL); 1642 1643 return (0); 1644 } 1645 #endif /* NPTY > 0 */ 1646 1647 /* 1648 * sysctl helper routine for kern.sbmax. basically just ensures that 1649 * any new value is not too small. 1650 */ 1651 static int 1652 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1653 { 1654 int error, new_sbmax; 1655 struct sysctlnode node; 1656 1657 new_sbmax = sb_max; 1658 node = *rnode; 1659 node.sysctl_data = &new_sbmax; 1660 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1661 if (error || newp == NULL) 1662 return (error); 1663 1664 error = sb_max_set(new_sbmax); 1665 1666 return (error); 1667 } 1668 1669 /* 1670 * sysctl helper routine for kern.urandom node. picks a random number 1671 * for you. 1672 */ 1673 static int 1674 sysctl_kern_urnd(SYSCTLFN_ARGS) 1675 { 1676 #if NRND > 0 1677 int v; 1678 1679 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1680 struct sysctlnode node = *rnode; 1681 node.sysctl_data = &v; 1682 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1683 } 1684 else 1685 return (EIO); /*XXX*/ 1686 #else 1687 return (EOPNOTSUPP); 1688 #endif 1689 } 1690 1691 /* 1692 * sysctl helper routine to do kern.lwp.* work. 1693 */ 1694 static int 1695 sysctl_kern_lwp(SYSCTLFN_ARGS) 1696 { 1697 struct kinfo_lwp klwp; 1698 struct proc *p; 1699 struct lwp *l2; 1700 char *where, *dp; 1701 int pid, elem_size, elem_count; 1702 int buflen, needed, error; 1703 1704 if (namelen == 1 && name[0] == CTL_QUERY) 1705 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1706 1707 dp = where = oldp; 1708 buflen = where != NULL ? *oldlenp : 0; 1709 error = needed = 0; 1710 1711 if (newp != NULL || namelen != 3) 1712 return (EINVAL); 1713 pid = name[0]; 1714 elem_size = name[1]; 1715 elem_count = name[2]; 1716 1717 p = pfind(pid); 1718 if (p == NULL) 1719 return (ESRCH); 1720 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1721 if (buflen >= elem_size && elem_count > 0) { 1722 fill_lwp(l2, &klwp); 1723 /* 1724 * Copy out elem_size, but not larger than 1725 * the size of a struct kinfo_proc2. 1726 */ 1727 error = copyout(&klwp, dp, 1728 min(sizeof(klwp), elem_size)); 1729 if (error) 1730 goto cleanup; 1731 dp += elem_size; 1732 buflen -= elem_size; 1733 elem_count--; 1734 } 1735 needed += elem_size; 1736 } 1737 1738 if (where != NULL) { 1739 *oldlenp = dp - where; 1740 if (needed > *oldlenp) 1741 return (ENOMEM); 1742 } else { 1743 needed += KERN_LWPSLOP; 1744 *oldlenp = needed; 1745 } 1746 return (0); 1747 cleanup: 1748 return (error); 1749 } 1750 1751 /* 1752 * sysctl helper routine for kern.forkfsleep node. ensures that the 1753 * given value is not too large or two small, and is at least one 1754 * timer tick if not zero. 1755 */ 1756 static int 1757 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1758 { 1759 /* userland sees value in ms, internally is in ticks */ 1760 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1761 int error, timo, lsleep; 1762 struct sysctlnode node; 1763 1764 lsleep = forkfsleep * 1000 / hz; 1765 node = *rnode; 1766 node.sysctl_data = &lsleep; 1767 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1768 if (error || newp == NULL) 1769 return (error); 1770 1771 /* refuse negative values, and overly 'long time' */ 1772 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1773 return (EINVAL); 1774 1775 timo = mstohz(lsleep); 1776 1777 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1778 if (lsleep != 0 && timo == 0) 1779 forkfsleep = 1; 1780 else 1781 forkfsleep = timo; 1782 1783 return (0); 1784 } 1785 1786 /* 1787 * sysctl helper routine for kern.root_partition 1788 */ 1789 static int 1790 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1791 { 1792 int rootpart = DISKPART(rootdev); 1793 struct sysctlnode node = *rnode; 1794 1795 node.sysctl_data = &rootpart; 1796 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1797 } 1798 1799 /* 1800 * sysctl helper function for kern.drivers 1801 */ 1802 static int 1803 sysctl_kern_drivers(SYSCTLFN_ARGS) 1804 { 1805 int error; 1806 size_t buflen; 1807 struct kinfo_drivers kd; 1808 char *start, *where; 1809 const char *dname; 1810 int i; 1811 extern struct devsw_conv *devsw_conv; 1812 extern int max_devsw_convs; 1813 1814 if (newp != NULL || namelen != 0) 1815 return (EINVAL); 1816 1817 start = where = oldp; 1818 buflen = *oldlenp; 1819 if (where == NULL) { 1820 *oldlenp = max_devsw_convs * sizeof kd; 1821 return 0; 1822 } 1823 1824 /* 1825 * An array of kinfo_drivers structures 1826 */ 1827 error = 0; 1828 for (i = 0; i < max_devsw_convs; i++) { 1829 dname = devsw_conv[i].d_name; 1830 if (dname == NULL) 1831 continue; 1832 if (buflen < sizeof kd) { 1833 error = ENOMEM; 1834 break; 1835 } 1836 memset(&kd, 0, sizeof(kd)); 1837 kd.d_bmajor = devsw_conv[i].d_bmajor; 1838 kd.d_cmajor = devsw_conv[i].d_cmajor; 1839 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1840 error = copyout(&kd, where, sizeof kd); 1841 if (error != 0) 1842 break; 1843 buflen -= sizeof kd; 1844 where += sizeof kd; 1845 } 1846 *oldlenp = where - start; 1847 return error; 1848 } 1849 1850 static int 1851 sysctl_doeproc(SYSCTLFN_ARGS) 1852 { 1853 struct eproc eproc; 1854 struct kinfo_proc2 kproc2; 1855 struct kinfo_proc *dp; 1856 struct proc *p; 1857 const struct proclist_desc *pd; 1858 char *where, *dp2; 1859 int type, op, arg; 1860 u_int elem_size, elem_count; 1861 size_t buflen, needed; 1862 int error; 1863 1864 if (namelen == 1 && name[0] == CTL_QUERY) 1865 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1866 1867 dp = oldp; 1868 dp2 = where = oldp; 1869 buflen = where != NULL ? *oldlenp : 0; 1870 error = 0; 1871 needed = 0; 1872 type = rnode->sysctl_num; 1873 1874 if (type == KERN_PROC) { 1875 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 1876 return (EINVAL); 1877 op = name[0]; 1878 if (op != KERN_PROC_ALL) 1879 arg = name[1]; 1880 else 1881 arg = 0; /* Quell compiler warning */ 1882 elem_size = elem_count = 0; /* Ditto */ 1883 } else { 1884 if (namelen != 4) 1885 return (EINVAL); 1886 op = name[0]; 1887 arg = name[1]; 1888 elem_size = name[2]; 1889 elem_count = name[3]; 1890 } 1891 1892 proclist_lock_read(); 1893 1894 pd = proclists; 1895 again: 1896 for (p = LIST_FIRST(pd->pd_list); p != NULL; p = LIST_NEXT(p, p_list)) { 1897 /* 1898 * Skip embryonic processes. 1899 */ 1900 if (p->p_stat == SIDL) 1901 continue; 1902 /* 1903 * TODO - make more efficient (see notes below). 1904 * do by session. 1905 */ 1906 switch (op) { 1907 1908 case KERN_PROC_PID: 1909 /* could do this with just a lookup */ 1910 if (p->p_pid != (pid_t)arg) 1911 continue; 1912 break; 1913 1914 case KERN_PROC_PGRP: 1915 /* could do this by traversing pgrp */ 1916 if (p->p_pgrp->pg_id != (pid_t)arg) 1917 continue; 1918 break; 1919 1920 case KERN_PROC_SESSION: 1921 if (p->p_session->s_sid != (pid_t)arg) 1922 continue; 1923 break; 1924 1925 case KERN_PROC_TTY: 1926 if (arg == (int) KERN_PROC_TTY_REVOKE) { 1927 if ((p->p_flag & P_CONTROLT) == 0 || 1928 p->p_session->s_ttyp == NULL || 1929 p->p_session->s_ttyvp != NULL) 1930 continue; 1931 } else if ((p->p_flag & P_CONTROLT) == 0 || 1932 p->p_session->s_ttyp == NULL) { 1933 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 1934 continue; 1935 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 1936 continue; 1937 break; 1938 1939 case KERN_PROC_UID: 1940 if (p->p_ucred->cr_uid != (uid_t)arg) 1941 continue; 1942 break; 1943 1944 case KERN_PROC_RUID: 1945 if (p->p_cred->p_ruid != (uid_t)arg) 1946 continue; 1947 break; 1948 1949 case KERN_PROC_GID: 1950 if (p->p_ucred->cr_gid != (uid_t)arg) 1951 continue; 1952 break; 1953 1954 case KERN_PROC_RGID: 1955 if (p->p_cred->p_rgid != (uid_t)arg) 1956 continue; 1957 break; 1958 1959 case KERN_PROC_ALL: 1960 /* allow everything */ 1961 break; 1962 1963 default: 1964 error = EINVAL; 1965 goto cleanup; 1966 } 1967 if (type == KERN_PROC) { 1968 if (buflen >= sizeof(struct kinfo_proc)) { 1969 fill_eproc(p, &eproc); 1970 error = copyout(p, &dp->kp_proc, 1971 sizeof(struct proc)); 1972 if (error) 1973 goto cleanup; 1974 error = copyout(&eproc, &dp->kp_eproc, 1975 sizeof(eproc)); 1976 if (error) 1977 goto cleanup; 1978 dp++; 1979 buflen -= sizeof(struct kinfo_proc); 1980 } 1981 needed += sizeof(struct kinfo_proc); 1982 } else { /* KERN_PROC2 */ 1983 if (buflen >= elem_size && elem_count > 0) { 1984 fill_kproc2(p, &kproc2); 1985 /* 1986 * Copy out elem_size, but not larger than 1987 * the size of a struct kinfo_proc2. 1988 */ 1989 error = copyout(&kproc2, dp2, 1990 min(sizeof(kproc2), elem_size)); 1991 if (error) 1992 goto cleanup; 1993 dp2 += elem_size; 1994 buflen -= elem_size; 1995 elem_count--; 1996 } 1997 needed += elem_size; 1998 } 1999 } 2000 pd++; 2001 if (pd->pd_list != NULL) 2002 goto again; 2003 proclist_unlock_read(); 2004 2005 if (where != NULL) { 2006 if (type == KERN_PROC) 2007 *oldlenp = (char *)dp - where; 2008 else 2009 *oldlenp = dp2 - where; 2010 if (needed > *oldlenp) 2011 return (ENOMEM); 2012 } else { 2013 needed += KERN_PROCSLOP; 2014 *oldlenp = needed; 2015 } 2016 return (0); 2017 cleanup: 2018 proclist_unlock_read(); 2019 return (error); 2020 } 2021 2022 /* 2023 * sysctl helper routine for kern.proc_args pseudo-subtree. 2024 */ 2025 static int 2026 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2027 { 2028 struct ps_strings pss; 2029 struct proc *p, *up = l->l_proc; 2030 size_t len, upper_bound, xlen, i; 2031 struct uio auio; 2032 struct iovec aiov; 2033 vaddr_t argv; 2034 pid_t pid; 2035 int nargv, type, error; 2036 char *arg; 2037 char *tmp; 2038 2039 if (namelen == 1 && name[0] == CTL_QUERY) 2040 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2041 2042 if (newp != NULL || namelen != 2) 2043 return (EINVAL); 2044 pid = name[0]; 2045 type = name[1]; 2046 2047 switch (type) { 2048 case KERN_PROC_ARGV: 2049 case KERN_PROC_NARGV: 2050 case KERN_PROC_ENV: 2051 case KERN_PROC_NENV: 2052 /* ok */ 2053 break; 2054 default: 2055 return (EINVAL); 2056 } 2057 2058 /* check pid */ 2059 if ((p = pfind(pid)) == NULL) 2060 return (EINVAL); 2061 2062 /* only root or same user change look at the environment */ 2063 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2064 if (up->p_ucred->cr_uid != 0) { 2065 if (up->p_cred->p_ruid != p->p_cred->p_ruid || 2066 up->p_cred->p_ruid != p->p_cred->p_svuid) 2067 return (EPERM); 2068 } 2069 } 2070 2071 if (oldp == NULL) { 2072 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2073 *oldlenp = sizeof (int); 2074 else 2075 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2076 return (0); 2077 } 2078 2079 /* 2080 * Zombies don't have a stack, so we can't read their psstrings. 2081 * System processes also don't have a user stack. 2082 */ 2083 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) 2084 return (EINVAL); 2085 2086 /* 2087 * Lock the process down in memory. 2088 */ 2089 /* XXXCDC: how should locking work here? */ 2090 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) 2091 return (EFAULT); 2092 2093 p->p_vmspace->vm_refcnt++; /* XXX */ 2094 2095 /* 2096 * Allocate a temporary buffer to hold the arguments. 2097 */ 2098 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2099 2100 /* 2101 * Read in the ps_strings structure. 2102 */ 2103 aiov.iov_base = &pss; 2104 aiov.iov_len = sizeof(pss); 2105 auio.uio_iov = &aiov; 2106 auio.uio_iovcnt = 1; 2107 auio.uio_offset = (vaddr_t)p->p_psstr; 2108 auio.uio_resid = sizeof(pss); 2109 auio.uio_segflg = UIO_SYSSPACE; 2110 auio.uio_rw = UIO_READ; 2111 auio.uio_procp = NULL; 2112 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2113 if (error) 2114 goto done; 2115 2116 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2117 memcpy(&nargv, (char *)&pss + p->p_psnargv, sizeof(nargv)); 2118 else 2119 memcpy(&nargv, (char *)&pss + p->p_psnenv, sizeof(nargv)); 2120 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2121 error = copyout(&nargv, oldp, sizeof(nargv)); 2122 *oldlenp = sizeof(nargv); 2123 goto done; 2124 } 2125 /* 2126 * Now read the address of the argument vector. 2127 */ 2128 switch (type) { 2129 case KERN_PROC_ARGV: 2130 /* XXX compat32 stuff here */ 2131 memcpy(&tmp, (char *)&pss + p->p_psargv, sizeof(tmp)); 2132 break; 2133 case KERN_PROC_ENV: 2134 memcpy(&tmp, (char *)&pss + p->p_psenv, sizeof(tmp)); 2135 break; 2136 default: 2137 return (EINVAL); 2138 } 2139 auio.uio_offset = (off_t)(long)tmp; 2140 aiov.iov_base = &argv; 2141 aiov.iov_len = sizeof(argv); 2142 auio.uio_iov = &aiov; 2143 auio.uio_iovcnt = 1; 2144 auio.uio_resid = sizeof(argv); 2145 auio.uio_segflg = UIO_SYSSPACE; 2146 auio.uio_rw = UIO_READ; 2147 auio.uio_procp = NULL; 2148 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2149 if (error) 2150 goto done; 2151 2152 /* 2153 * Now copy in the actual argument vector, one page at a time, 2154 * since we don't know how long the vector is (though, we do 2155 * know how many NUL-terminated strings are in the vector). 2156 */ 2157 len = 0; 2158 upper_bound = *oldlenp; 2159 for (; nargv != 0 && len < upper_bound; len += xlen) { 2160 aiov.iov_base = arg; 2161 aiov.iov_len = PAGE_SIZE; 2162 auio.uio_iov = &aiov; 2163 auio.uio_iovcnt = 1; 2164 auio.uio_offset = argv + len; 2165 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2166 auio.uio_resid = xlen; 2167 auio.uio_segflg = UIO_SYSSPACE; 2168 auio.uio_rw = UIO_READ; 2169 auio.uio_procp = NULL; 2170 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2171 if (error) 2172 goto done; 2173 2174 for (i = 0; i < xlen && nargv != 0; i++) { 2175 if (arg[i] == '\0') 2176 nargv--; /* one full string */ 2177 } 2178 2179 /* 2180 * Make sure we don't copyout past the end of the user's 2181 * buffer. 2182 */ 2183 if (len + i > upper_bound) 2184 i = upper_bound - len; 2185 2186 error = copyout(arg, (char *)oldp + len, i); 2187 if (error) 2188 break; 2189 2190 if (nargv == 0) { 2191 len += i; 2192 break; 2193 } 2194 } 2195 *oldlenp = len; 2196 2197 done: 2198 uvmspace_free(p->p_vmspace); 2199 2200 free(arg, M_TEMP); 2201 return (error); 2202 } 2203 2204 /* 2205 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2206 * calculate on the fly taking into account integer overflow and the 2207 * current wired count. 2208 */ 2209 static int 2210 sysctl_hw_usermem(SYSCTLFN_ARGS) 2211 { 2212 u_int ui; 2213 u_quad_t uq; 2214 struct sysctlnode node; 2215 2216 node = *rnode; 2217 switch (rnode->sysctl_num) { 2218 case HW_USERMEM: 2219 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2220 ui = UINT_MAX; 2221 else 2222 ui *= PAGE_SIZE; 2223 node.sysctl_data = &ui; 2224 break; 2225 case HW_USERMEM64: 2226 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2227 node.sysctl_data = &uq; 2228 break; 2229 default: 2230 return (EINVAL); 2231 } 2232 2233 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2234 } 2235 2236 /* 2237 * sysctl helper routine for kern.cnmagic node. pulls the old value 2238 * out, encoded, and stuffs the new value in for decoding. 2239 */ 2240 static int 2241 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2242 { 2243 char magic[CNS_LEN]; 2244 int error; 2245 struct sysctlnode node; 2246 2247 if (oldp) 2248 cn_get_magic(magic, CNS_LEN); 2249 node = *rnode; 2250 node.sysctl_data = &magic[0]; 2251 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2252 if (error || newp == NULL) 2253 return (error); 2254 2255 return (cn_set_magic(magic)); 2256 } 2257 2258 static int 2259 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2260 { 2261 int ncpu; 2262 struct sysctlnode node; 2263 2264 ncpu = sysctl_ncpus(); 2265 node = *rnode; 2266 node.sysctl_data = &ncpu; 2267 2268 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2269 } 2270 2271 2272 /* 2273 * ******************************************************************** 2274 * section 3: public helper routines that are used for more than one 2275 * node 2276 * ******************************************************************** 2277 */ 2278 2279 /* 2280 * sysctl helper routine for the kern.root_device node and some ports' 2281 * machdep.root_device nodes. 2282 */ 2283 int 2284 sysctl_root_device(SYSCTLFN_ARGS) 2285 { 2286 struct sysctlnode node; 2287 2288 node = *rnode; 2289 node.sysctl_data = root_device->dv_xname; 2290 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2291 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2292 } 2293 2294 /* 2295 * sysctl helper routine for kern.consdev, dependent on the current 2296 * state of the console. also used for machdep.console_device on some 2297 * ports. 2298 */ 2299 int 2300 sysctl_consdev(SYSCTLFN_ARGS) 2301 { 2302 dev_t consdev; 2303 struct sysctlnode node; 2304 2305 if (cn_tab != NULL) 2306 consdev = cn_tab->cn_dev; 2307 else 2308 consdev = NODEV; 2309 node = *rnode; 2310 node.sysctl_data = &consdev; 2311 node.sysctl_size = sizeof(consdev); 2312 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2313 } 2314 2315 /* 2316 * ******************************************************************** 2317 * section 4: support for some helpers 2318 * ******************************************************************** 2319 */ 2320 2321 /* 2322 * Fill in a kinfo_proc2 structure for the specified process. 2323 */ 2324 static void 2325 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2326 { 2327 struct tty *tp; 2328 struct lwp *l; 2329 struct timeval ut, st; 2330 2331 memset(ki, 0, sizeof(*ki)); 2332 2333 ki->p_paddr = PTRTOUINT64(p); 2334 ki->p_fd = PTRTOUINT64(p->p_fd); 2335 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2336 ki->p_stats = PTRTOUINT64(p->p_stats); 2337 ki->p_limit = PTRTOUINT64(p->p_limit); 2338 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2339 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2340 ki->p_sess = PTRTOUINT64(p->p_session); 2341 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2342 ki->p_ru = PTRTOUINT64(p->p_ru); 2343 2344 ki->p_eflag = 0; 2345 ki->p_exitsig = p->p_exitsig; 2346 ki->p_flag = p->p_flag; 2347 2348 ki->p_pid = p->p_pid; 2349 if (p->p_pptr) 2350 ki->p_ppid = p->p_pptr->p_pid; 2351 else 2352 ki->p_ppid = 0; 2353 ki->p_sid = p->p_session->s_sid; 2354 ki->p__pgid = p->p_pgrp->pg_id; 2355 2356 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2357 2358 ki->p_uid = p->p_ucred->cr_uid; 2359 ki->p_ruid = p->p_cred->p_ruid; 2360 ki->p_gid = p->p_ucred->cr_gid; 2361 ki->p_rgid = p->p_cred->p_rgid; 2362 ki->p_svuid = p->p_cred->p_svuid; 2363 ki->p_svgid = p->p_cred->p_svgid; 2364 2365 memcpy(ki->p_groups, p->p_cred->pc_ucred->cr_groups, 2366 min(sizeof(ki->p_groups), sizeof(p->p_cred->pc_ucred->cr_groups))); 2367 ki->p_ngroups = p->p_cred->pc_ucred->cr_ngroups; 2368 2369 ki->p_jobc = p->p_pgrp->pg_jobc; 2370 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2371 ki->p_tdev = tp->t_dev; 2372 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2373 ki->p_tsess = PTRTOUINT64(tp->t_session); 2374 } else { 2375 ki->p_tdev = NODEV; 2376 } 2377 2378 ki->p_estcpu = p->p_estcpu; 2379 ki->p_rtime_sec = p->p_rtime.tv_sec; 2380 ki->p_rtime_usec = p->p_rtime.tv_usec; 2381 ki->p_cpticks = p->p_cpticks; 2382 ki->p_pctcpu = p->p_pctcpu; 2383 2384 ki->p_uticks = p->p_uticks; 2385 ki->p_sticks = p->p_sticks; 2386 ki->p_iticks = p->p_iticks; 2387 2388 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2389 ki->p_traceflag = p->p_traceflag; 2390 2391 2392 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2393 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2394 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2395 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2396 2397 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2398 ki->p_realstat = p->p_stat; 2399 ki->p_nice = p->p_nice; 2400 2401 ki->p_xstat = p->p_xstat; 2402 ki->p_acflag = p->p_acflag; 2403 2404 strncpy(ki->p_comm, p->p_comm, 2405 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2406 2407 strncpy(ki->p_login, p->p_session->s_login, 2408 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2409 2410 ki->p_nlwps = p->p_nlwps; 2411 ki->p_nrlwps = p->p_nrlwps; 2412 ki->p_realflag = p->p_flag; 2413 2414 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2415 ki->p_vm_rssize = 0; 2416 ki->p_vm_tsize = 0; 2417 ki->p_vm_dsize = 0; 2418 ki->p_vm_ssize = 0; 2419 l = NULL; 2420 } else { 2421 struct vmspace *vm = p->p_vmspace; 2422 2423 ki->p_vm_rssize = vm_resident_count(vm); 2424 ki->p_vm_tsize = vm->vm_tsize; 2425 ki->p_vm_dsize = vm->vm_dsize; 2426 ki->p_vm_ssize = vm->vm_ssize; 2427 2428 /* Pick a "representative" LWP */ 2429 l = proc_representative_lwp(p); 2430 ki->p_forw = PTRTOUINT64(l->l_forw); 2431 ki->p_back = PTRTOUINT64(l->l_back); 2432 ki->p_addr = PTRTOUINT64(l->l_addr); 2433 ki->p_stat = l->l_stat; 2434 ki->p_flag |= l->l_flag; 2435 ki->p_swtime = l->l_swtime; 2436 ki->p_slptime = l->l_slptime; 2437 if (l->l_stat == LSONPROC) { 2438 KDASSERT(l->l_cpu != NULL); 2439 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2440 } else 2441 ki->p_schedflags = 0; 2442 ki->p_holdcnt = l->l_holdcnt; 2443 ki->p_priority = l->l_priority; 2444 ki->p_usrpri = l->l_usrpri; 2445 if (l->l_wmesg) 2446 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2447 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2448 2449 } 2450 2451 if (p->p_session->s_ttyvp) 2452 ki->p_eflag |= EPROC_CTTY; 2453 if (SESS_LEADER(p)) 2454 ki->p_eflag |= EPROC_SLEADER; 2455 2456 /* XXX Is this double check necessary? */ 2457 if (P_ZOMBIE(p)) { 2458 ki->p_uvalid = 0; 2459 } else { 2460 ki->p_uvalid = 1; 2461 2462 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2463 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2464 2465 calcru(p, &ut, &st, 0); 2466 ki->p_uutime_sec = ut.tv_sec; 2467 ki->p_uutime_usec = ut.tv_usec; 2468 ki->p_ustime_sec = st.tv_sec; 2469 ki->p_ustime_usec = st.tv_usec; 2470 2471 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2472 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2473 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2474 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2475 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2476 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2477 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2478 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2479 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2480 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2481 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2482 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2483 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 2484 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 2485 2486 timeradd(&p->p_stats->p_cru.ru_utime, 2487 &p->p_stats->p_cru.ru_stime, &ut); 2488 ki->p_uctime_sec = ut.tv_sec; 2489 ki->p_uctime_usec = ut.tv_usec; 2490 } 2491 #ifdef MULTIPROCESSOR 2492 if (l && l->l_cpu != NULL) 2493 ki->p_cpuid = l->l_cpu->ci_cpuid; 2494 else 2495 #endif 2496 ki->p_cpuid = KI_NOCPU; 2497 } 2498 2499 /* 2500 * Fill in a kinfo_lwp structure for the specified lwp. 2501 */ 2502 static void 2503 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2504 { 2505 2506 kl->l_forw = PTRTOUINT64(l->l_forw); 2507 kl->l_back = PTRTOUINT64(l->l_back); 2508 kl->l_laddr = PTRTOUINT64(l); 2509 kl->l_addr = PTRTOUINT64(l->l_addr); 2510 kl->l_stat = l->l_stat; 2511 kl->l_lid = l->l_lid; 2512 kl->l_flag = l->l_flag; 2513 2514 kl->l_swtime = l->l_swtime; 2515 kl->l_slptime = l->l_slptime; 2516 if (l->l_stat == LSONPROC) { 2517 KDASSERT(l->l_cpu != NULL); 2518 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2519 } else 2520 kl->l_schedflags = 0; 2521 kl->l_holdcnt = l->l_holdcnt; 2522 kl->l_priority = l->l_priority; 2523 kl->l_usrpri = l->l_usrpri; 2524 if (l->l_wmesg) 2525 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2526 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2527 #ifdef MULTIPROCESSOR 2528 if (l->l_cpu != NULL) 2529 kl->l_cpuid = l->l_cpu->ci_cpuid; 2530 else 2531 #endif 2532 kl->l_cpuid = KI_NOCPU; 2533 } 2534 2535 /* 2536 * Fill in an eproc structure for the specified process. 2537 */ 2538 void 2539 fill_eproc(struct proc *p, struct eproc *ep) 2540 { 2541 struct tty *tp; 2542 struct lwp *l; 2543 2544 ep->e_paddr = p; 2545 ep->e_sess = p->p_session; 2546 ep->e_pcred = *p->p_cred; 2547 ep->e_ucred = *p->p_ucred; 2548 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2549 ep->e_vm.vm_rssize = 0; 2550 ep->e_vm.vm_tsize = 0; 2551 ep->e_vm.vm_dsize = 0; 2552 ep->e_vm.vm_ssize = 0; 2553 /* ep->e_vm.vm_pmap = XXX; */ 2554 } else { 2555 struct vmspace *vm = p->p_vmspace; 2556 2557 ep->e_vm.vm_rssize = vm_resident_count(vm); 2558 ep->e_vm.vm_tsize = vm->vm_tsize; 2559 ep->e_vm.vm_dsize = vm->vm_dsize; 2560 ep->e_vm.vm_ssize = vm->vm_ssize; 2561 2562 /* Pick a "representative" LWP */ 2563 l = proc_representative_lwp(p); 2564 2565 if (l->l_wmesg) 2566 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2567 } 2568 if (p->p_pptr) 2569 ep->e_ppid = p->p_pptr->p_pid; 2570 else 2571 ep->e_ppid = 0; 2572 ep->e_pgid = p->p_pgrp->pg_id; 2573 ep->e_sid = ep->e_sess->s_sid; 2574 ep->e_jobc = p->p_pgrp->pg_jobc; 2575 if ((p->p_flag & P_CONTROLT) && 2576 (tp = ep->e_sess->s_ttyp)) { 2577 ep->e_tdev = tp->t_dev; 2578 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2579 ep->e_tsess = tp->t_session; 2580 } else 2581 ep->e_tdev = NODEV; 2582 2583 ep->e_xsize = ep->e_xrssize = 0; 2584 ep->e_xccount = ep->e_xswrss = 0; 2585 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2586 if (SESS_LEADER(p)) 2587 ep->e_flag |= EPROC_SLEADER; 2588 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2589 }
Cache object: bb68a3aa7cb4d5fe86d3fbfef723df52
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]