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FreeBSD/Linux Kernel Cross Reference
sys/kern/init_sysctl.c
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1 /* $NetBSD: init_sysctl.c,v 1.36.2.8 2009/03/20 15:08:55 msaitoh 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 1.36.2.8 2009/03/20 15:08:55 msaitoh Exp $"); 41 42 #include "opt_sysv.h" 43 #include "opt_multiprocessor.h" 44 #include "opt_posix.h" 45 #include "opt_verified_exec.h" 46 #include "pty.h" 47 #include "rnd.h" 48 49 #include <sys/types.h> 50 #include <sys/param.h> 51 #include <sys/sysctl.h> 52 #include <sys/errno.h> 53 #include <sys/systm.h> 54 #include <sys/kernel.h> 55 #include <sys/unistd.h> 56 #include <sys/disklabel.h> 57 #include <sys/rnd.h> 58 #include <sys/vnode.h> 59 #include <sys/mount.h> 60 #include <sys/namei.h> 61 #include <sys/msgbuf.h> 62 #include <dev/cons.h> 63 #include <sys/socketvar.h> 64 #include <sys/file.h> 65 #include <sys/filedesc.h> 66 #include <sys/tty.h> 67 #include <sys/malloc.h> 68 #include <sys/resource.h> 69 #include <sys/resourcevar.h> 70 #include <sys/exec.h> 71 #include <sys/conf.h> 72 #include <sys/device.h> 73 #define VERIEXEC_NEED_NODE 74 #include <sys/verified_exec.h> 75 76 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 77 #include <sys/ipc.h> 78 #endif 79 #ifdef SYSVMSG 80 #include <sys/msg.h> 81 #endif 82 #ifdef SYSVSEM 83 #include <sys/sem.h> 84 #endif 85 #ifdef SYSVSHM 86 #include <sys/shm.h> 87 #endif 88 89 #include <machine/cpu.h> 90 91 /* 92 * try over estimating by 5 procs/lwps 93 */ 94 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 95 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 96 97 #ifndef MULTIPROCESSOR 98 #define sysctl_ncpus() (1) 99 #else /* MULTIPROCESSOR */ 100 #ifndef CPU_INFO_FOREACH 101 #define CPU_INFO_ITERATOR int 102 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 103 #endif 104 static int 105 sysctl_ncpus(void) 106 { 107 struct cpu_info *ci; 108 CPU_INFO_ITERATOR cii; 109 110 int ncpus = 0; 111 for (CPU_INFO_FOREACH(cii, ci)) 112 ncpus++; 113 return (ncpus); 114 } 115 #endif /* MULTIPROCESSOR */ 116 117 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 118 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 119 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 120 static int sysctl_kern_securelevel(SYSCTLFN_PROTO); 121 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 122 static int sysctl_setlen(SYSCTLFN_PROTO); 123 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 124 static int sysctl_kern_file(SYSCTLFN_PROTO); 125 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 126 static int sysctl_msgbuf(SYSCTLFN_PROTO); 127 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 128 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 129 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 130 static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 131 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 132 #if NPTY > 0 133 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 134 #endif /* NPTY > 0 */ 135 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 136 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 137 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 138 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 139 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 140 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 141 static int sysctl_kern_file2(SYSCTLFN_PROTO); 142 #ifdef VERIFIED_EXEC 143 static int sysctl_kern_veriexec(SYSCTLFN_PROTO); 144 #endif 145 static int sysctl_doeproc(SYSCTLFN_PROTO); 146 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 147 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 148 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 149 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 150 151 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 152 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 153 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 154 int); 155 156 /* 157 * ******************************************************************** 158 * section 1: setup routines 159 * ******************************************************************** 160 * these functions are stuffed into a link set for sysctl setup 161 * functions. they're never called or referenced from anywhere else. 162 * ******************************************************************** 163 */ 164 165 /* 166 * sets up the base nodes... 167 */ 168 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 169 { 170 171 sysctl_createv(clog, 0, NULL, NULL, 172 CTLFLAG_PERMANENT, 173 CTLTYPE_NODE, "kern", 174 SYSCTL_DESCR("High kernel"), 175 NULL, 0, NULL, 0, 176 CTL_KERN, CTL_EOL); 177 sysctl_createv(clog, 0, NULL, NULL, 178 CTLFLAG_PERMANENT, 179 CTLTYPE_NODE, "vm", 180 SYSCTL_DESCR("Virtual memory"), 181 NULL, 0, NULL, 0, 182 CTL_VM, CTL_EOL); 183 sysctl_createv(clog, 0, NULL, NULL, 184 CTLFLAG_PERMANENT, 185 CTLTYPE_NODE, "vfs", 186 SYSCTL_DESCR("Filesystem"), 187 NULL, 0, NULL, 0, 188 CTL_VFS, CTL_EOL); 189 sysctl_createv(clog, 0, NULL, NULL, 190 CTLFLAG_PERMANENT, 191 CTLTYPE_NODE, "net", 192 SYSCTL_DESCR("Networking"), 193 NULL, 0, NULL, 0, 194 CTL_NET, CTL_EOL); 195 sysctl_createv(clog, 0, NULL, NULL, 196 CTLFLAG_PERMANENT, 197 CTLTYPE_NODE, "debug", 198 SYSCTL_DESCR("Debugging"), 199 NULL, 0, NULL, 0, 200 CTL_DEBUG, CTL_EOL); 201 sysctl_createv(clog, 0, NULL, NULL, 202 CTLFLAG_PERMANENT, 203 CTLTYPE_NODE, "hw", 204 SYSCTL_DESCR("Generic CPU, I/O"), 205 NULL, 0, NULL, 0, 206 CTL_HW, CTL_EOL); 207 sysctl_createv(clog, 0, NULL, NULL, 208 CTLFLAG_PERMANENT, 209 CTLTYPE_NODE, "machdep", 210 SYSCTL_DESCR("Machine dependent"), 211 NULL, 0, NULL, 0, 212 CTL_MACHDEP, CTL_EOL); 213 /* 214 * this node is inserted so that the sysctl nodes in libc can 215 * operate. 216 */ 217 sysctl_createv(clog, 0, NULL, NULL, 218 CTLFLAG_PERMANENT, 219 CTLTYPE_NODE, "user", 220 SYSCTL_DESCR("User-level"), 221 NULL, 0, NULL, 0, 222 CTL_USER, CTL_EOL); 223 sysctl_createv(clog, 0, NULL, NULL, 224 CTLFLAG_PERMANENT, 225 CTLTYPE_NODE, "ddb", 226 SYSCTL_DESCR("In-kernel debugger"), 227 NULL, 0, NULL, 0, 228 CTL_DDB, CTL_EOL); 229 sysctl_createv(clog, 0, NULL, NULL, 230 CTLFLAG_PERMANENT, 231 CTLTYPE_NODE, "proc", 232 SYSCTL_DESCR("Per-process"), 233 NULL, 0, NULL, 0, 234 CTL_PROC, CTL_EOL); 235 sysctl_createv(clog, 0, NULL, NULL, 236 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 237 CTLTYPE_NODE, "vendor", 238 SYSCTL_DESCR("Vendor specific"), 239 NULL, 0, NULL, 0, 240 CTL_VENDOR, CTL_EOL); 241 sysctl_createv(clog, 0, NULL, NULL, 242 CTLFLAG_PERMANENT, 243 CTLTYPE_NODE, "emul", 244 SYSCTL_DESCR("Emulation settings"), 245 NULL, 0, NULL, 0, 246 CTL_EMUL, CTL_EOL); 247 } 248 249 /* 250 * this setup routine is a replacement for kern_sysctl() 251 */ 252 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 253 { 254 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 255 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 256 extern int dumponpanic; /* defined in kern/subr_prf.c */ 257 258 sysctl_createv(clog, 0, NULL, NULL, 259 CTLFLAG_PERMANENT, 260 CTLTYPE_NODE, "kern", NULL, 261 NULL, 0, NULL, 0, 262 CTL_KERN, CTL_EOL); 263 264 sysctl_createv(clog, 0, NULL, NULL, 265 CTLFLAG_PERMANENT, 266 CTLTYPE_STRING, "ostype", 267 SYSCTL_DESCR("Operating system type"), 268 NULL, 0, &ostype, 0, 269 CTL_KERN, KERN_OSTYPE, CTL_EOL); 270 sysctl_createv(clog, 0, NULL, NULL, 271 CTLFLAG_PERMANENT, 272 CTLTYPE_STRING, "osrelease", 273 SYSCTL_DESCR("Operating system release"), 274 NULL, 0, &osrelease, 0, 275 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 276 sysctl_createv(clog, 0, NULL, NULL, 277 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 278 CTLTYPE_INT, "osrevision", 279 SYSCTL_DESCR("Operating system revision"), 280 NULL, __NetBSD_Version__, NULL, 0, 281 CTL_KERN, KERN_OSREV, CTL_EOL); 282 sysctl_createv(clog, 0, NULL, NULL, 283 CTLFLAG_PERMANENT, 284 CTLTYPE_STRING, "version", 285 SYSCTL_DESCR("Kernel version"), 286 NULL, 0, &version, 0, 287 CTL_KERN, KERN_VERSION, CTL_EOL); 288 sysctl_createv(clog, 0, NULL, NULL, 289 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 290 CTLTYPE_INT, "maxvnodes", 291 SYSCTL_DESCR("Maximum number of vnodes"), 292 sysctl_kern_maxvnodes, 0, NULL, 0, 293 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 294 sysctl_createv(clog, 0, NULL, NULL, 295 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 296 CTLTYPE_INT, "maxproc", 297 SYSCTL_DESCR("Maximum number of simultaneous processes"), 298 sysctl_kern_maxproc, 0, NULL, 0, 299 CTL_KERN, KERN_MAXPROC, CTL_EOL); 300 sysctl_createv(clog, 0, NULL, NULL, 301 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 302 CTLTYPE_INT, "maxfiles", 303 SYSCTL_DESCR("Maximum number of open files"), 304 NULL, 0, &maxfiles, 0, 305 CTL_KERN, KERN_MAXFILES, CTL_EOL); 306 sysctl_createv(clog, 0, NULL, NULL, 307 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 308 CTLTYPE_INT, "argmax", 309 SYSCTL_DESCR("Maximum number of bytes of arguments to " 310 "execve(2)"), 311 NULL, ARG_MAX, NULL, 0, 312 CTL_KERN, KERN_ARGMAX, CTL_EOL); 313 sysctl_createv(clog, 0, NULL, NULL, 314 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 315 CTLTYPE_INT, "securelevel", 316 SYSCTL_DESCR("System security level"), 317 sysctl_kern_securelevel, 0, &securelevel, 0, 318 CTL_KERN, KERN_SECURELVL, CTL_EOL); 319 sysctl_createv(clog, 0, NULL, NULL, 320 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 321 CTLTYPE_STRING, "hostname", 322 SYSCTL_DESCR("System hostname"), 323 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 324 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 325 sysctl_createv(clog, 0, NULL, NULL, 326 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 327 CTLTYPE_INT, "hostid", 328 SYSCTL_DESCR("System host ID number"), 329 sysctl_kern_hostid, 0, NULL, 0, 330 CTL_KERN, KERN_HOSTID, CTL_EOL); 331 sysctl_createv(clog, 0, NULL, NULL, 332 CTLFLAG_PERMANENT, 333 CTLTYPE_STRUCT, "clockrate", 334 SYSCTL_DESCR("Kernel clock rates"), 335 sysctl_kern_clockrate, 0, NULL, 336 sizeof(struct clockinfo), 337 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 338 sysctl_createv(clog, 0, NULL, NULL, 339 CTLFLAG_PERMANENT, 340 CTLTYPE_STRUCT, "vnode", 341 SYSCTL_DESCR("System vnode table"), 342 sysctl_kern_vnode, 0, NULL, 0, 343 CTL_KERN, KERN_VNODE, CTL_EOL); 344 sysctl_createv(clog, 0, NULL, NULL, 345 CTLFLAG_PERMANENT, 346 CTLTYPE_STRUCT, "file", 347 SYSCTL_DESCR("System open file table"), 348 sysctl_kern_file, 0, NULL, 0, 349 CTL_KERN, KERN_FILE, CTL_EOL); 350 #ifndef GPROF 351 sysctl_createv(clog, 0, NULL, NULL, 352 CTLFLAG_PERMANENT, 353 CTLTYPE_NODE, "profiling", 354 SYSCTL_DESCR("Profiling information (not available)"), 355 sysctl_notavail, 0, NULL, 0, 356 CTL_KERN, KERN_PROF, CTL_EOL); 357 #endif 358 sysctl_createv(clog, 0, NULL, NULL, 359 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 360 CTLTYPE_INT, "posix1version", 361 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 362 "with which the operating system attempts " 363 "to comply"), 364 NULL, _POSIX_VERSION, NULL, 0, 365 CTL_KERN, KERN_POSIX1, CTL_EOL); 366 sysctl_createv(clog, 0, NULL, NULL, 367 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 368 CTLTYPE_INT, "ngroups", 369 SYSCTL_DESCR("Maximum number of supplemental groups"), 370 NULL, NGROUPS_MAX, NULL, 0, 371 CTL_KERN, KERN_NGROUPS, CTL_EOL); 372 sysctl_createv(clog, 0, NULL, NULL, 373 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 374 CTLTYPE_INT, "job_control", 375 SYSCTL_DESCR("Whether job control is available"), 376 NULL, 1, NULL, 0, 377 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 378 sysctl_createv(clog, 0, NULL, NULL, 379 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 380 CTLTYPE_INT, "saved_ids", 381 SYSCTL_DESCR("Whether saved set-group/user ID is " 382 "available"), NULL, 383 #ifdef _POSIX_SAVED_IDS 384 1, 385 #else /* _POSIX_SAVED_IDS */ 386 0, 387 #endif /* _POSIX_SAVED_IDS */ 388 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 389 sysctl_createv(clog, 0, NULL, NULL, 390 CTLFLAG_PERMANENT, 391 CTLTYPE_STRUCT, "boottime", 392 SYSCTL_DESCR("System boot time"), 393 NULL, 0, &boottime, sizeof(boottime), 394 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 395 sysctl_createv(clog, 0, NULL, NULL, 396 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 397 CTLTYPE_STRING, "domainname", 398 SYSCTL_DESCR("YP domain name"), 399 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 400 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 401 sysctl_createv(clog, 0, NULL, NULL, 402 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 403 CTLTYPE_INT, "maxpartitions", 404 SYSCTL_DESCR("Maximum number of partitions allowed per " 405 "disk"), 406 NULL, MAXPARTITIONS, NULL, 0, 407 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 408 sysctl_createv(clog, 0, NULL, NULL, 409 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 410 CTLTYPE_INT, "rawpartition", 411 SYSCTL_DESCR("Raw partition of a disk"), 412 NULL, RAW_PART, NULL, 0, 413 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 414 sysctl_createv(clog, 0, NULL, NULL, 415 CTLFLAG_PERMANENT, 416 CTLTYPE_STRUCT, "timex", NULL, 417 sysctl_notavail, 0, NULL, 0, 418 CTL_KERN, KERN_TIMEX, CTL_EOL); 419 sysctl_createv(clog, 0, NULL, NULL, 420 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 421 CTLTYPE_INT, "autonicetime", 422 SYSCTL_DESCR("CPU clock seconds before non-root " 423 "process priority is lowered"), 424 sysctl_kern_autonice, 0, &autonicetime, 0, 425 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 426 sysctl_createv(clog, 0, NULL, NULL, 427 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 428 CTLTYPE_INT, "autoniceval", 429 SYSCTL_DESCR("Automatic reniced non-root process " 430 "priority"), 431 sysctl_kern_autonice, 0, &autoniceval, 0, 432 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 433 sysctl_createv(clog, 0, NULL, NULL, 434 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 435 CTLTYPE_INT, "rtc_offset", 436 SYSCTL_DESCR("Offset of real time clock from UTC in " 437 "minutes"), 438 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 439 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 440 sysctl_createv(clog, 0, NULL, NULL, 441 CTLFLAG_PERMANENT, 442 CTLTYPE_STRING, "root_device", 443 SYSCTL_DESCR("Name of the root device"), 444 sysctl_root_device, 0, NULL, 0, 445 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 446 sysctl_createv(clog, 0, NULL, NULL, 447 CTLFLAG_PERMANENT, 448 CTLTYPE_INT, "msgbufsize", 449 SYSCTL_DESCR("Size of the kernel message buffer"), 450 sysctl_msgbuf, 0, NULL, 0, 451 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 452 sysctl_createv(clog, 0, NULL, NULL, 453 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 454 CTLTYPE_INT, "fsync", 455 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 456 "Synchronization Option is available on " 457 "this system"), 458 NULL, 1, NULL, 0, 459 CTL_KERN, KERN_FSYNC, CTL_EOL); 460 sysctl_createv(clog, 0, NULL, NULL, 461 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 462 CTLTYPE_INT, "sysvmsg", 463 SYSCTL_DESCR("System V style message support available"), 464 NULL, 465 #ifdef SYSVMSG 466 1, 467 #else /* SYSVMSG */ 468 0, 469 #endif /* SYSVMSG */ 470 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 471 sysctl_createv(clog, 0, NULL, NULL, 472 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 473 CTLTYPE_INT, "sysvsem", 474 SYSCTL_DESCR("System V style semaphore support " 475 "available"), NULL, 476 #ifdef SYSVSEM 477 1, 478 #else /* SYSVSEM */ 479 0, 480 #endif /* SYSVSEM */ 481 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 482 sysctl_createv(clog, 0, NULL, NULL, 483 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 484 CTLTYPE_INT, "sysvshm", 485 SYSCTL_DESCR("System V style shared memory support " 486 "available"), NULL, 487 #ifdef SYSVSHM 488 1, 489 #else /* SYSVSHM */ 490 0, 491 #endif /* SYSVSHM */ 492 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 493 sysctl_createv(clog, 0, NULL, NULL, 494 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 495 CTLTYPE_INT, "synchronized_io", 496 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 497 "I/O Option is available on this system"), 498 NULL, 1, NULL, 0, 499 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 500 sysctl_createv(clog, 0, NULL, NULL, 501 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 502 CTLTYPE_INT, "iov_max", 503 SYSCTL_DESCR("Maximum number of iovec structures per " 504 "process"), 505 NULL, IOV_MAX, NULL, 0, 506 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 507 sysctl_createv(clog, 0, NULL, NULL, 508 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 509 CTLTYPE_INT, "mapped_files", 510 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 511 "Files Option is available on this system"), 512 NULL, 1, NULL, 0, 513 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 514 sysctl_createv(clog, 0, NULL, NULL, 515 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 516 CTLTYPE_INT, "memlock", 517 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 518 "Locking Option is available on this " 519 "system"), 520 NULL, 1, NULL, 0, 521 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 522 sysctl_createv(clog, 0, NULL, NULL, 523 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 524 CTLTYPE_INT, "memlock_range", 525 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 526 "Locking Option is available on this " 527 "system"), 528 NULL, 1, NULL, 0, 529 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 530 sysctl_createv(clog, 0, NULL, NULL, 531 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 532 CTLTYPE_INT, "memory_protection", 533 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 534 "Protection Option is available on this " 535 "system"), 536 NULL, 1, NULL, 0, 537 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 538 sysctl_createv(clog, 0, NULL, NULL, 539 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 540 CTLTYPE_INT, "login_name_max", 541 SYSCTL_DESCR("Maximum login name length"), 542 NULL, LOGIN_NAME_MAX, NULL, 0, 543 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 544 sysctl_createv(clog, 0, NULL, NULL, 545 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 546 CTLTYPE_STRING, "defcorename", 547 SYSCTL_DESCR("Default core file name"), 548 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 549 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 550 sysctl_createv(clog, 0, NULL, NULL, 551 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 552 CTLTYPE_INT, "logsigexit", 553 SYSCTL_DESCR("Log process exit when caused by signals"), 554 NULL, 0, &kern_logsigexit, 0, 555 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 556 sysctl_createv(clog, 0, NULL, NULL, 557 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 558 CTLTYPE_INT, "fscale", 559 SYSCTL_DESCR("Kernel fixed-point scale factor"), 560 NULL, FSCALE, NULL, 0, 561 CTL_KERN, KERN_FSCALE, CTL_EOL); 562 sysctl_createv(clog, 0, NULL, NULL, 563 CTLFLAG_PERMANENT, 564 CTLTYPE_INT, "ccpu", 565 SYSCTL_DESCR("Scheduler exponential decay value"), 566 NULL, 0, &ccpu, 0, 567 CTL_KERN, KERN_CCPU, CTL_EOL); 568 sysctl_createv(clog, 0, NULL, NULL, 569 CTLFLAG_PERMANENT, 570 CTLTYPE_STRUCT, "cp_time", 571 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 572 sysctl_kern_cptime, 0, NULL, 0, 573 CTL_KERN, KERN_CP_TIME, CTL_EOL); 574 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 575 sysctl_createv(clog, 0, NULL, NULL, 576 CTLFLAG_PERMANENT, 577 CTLTYPE_STRUCT, "sysvipc_info", 578 SYSCTL_DESCR("System V style IPC information"), 579 sysctl_kern_sysvipc, 0, NULL, 0, 580 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 581 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 582 sysctl_createv(clog, 0, NULL, NULL, 583 CTLFLAG_PERMANENT, 584 CTLTYPE_INT, "msgbuf", 585 SYSCTL_DESCR("Kernel message buffer"), 586 sysctl_msgbuf, 0, NULL, 0, 587 CTL_KERN, KERN_MSGBUF, CTL_EOL); 588 sysctl_createv(clog, 0, NULL, NULL, 589 CTLFLAG_PERMANENT, 590 CTLTYPE_STRUCT, "consdev", 591 SYSCTL_DESCR("Console device"), 592 sysctl_consdev, 0, NULL, sizeof(dev_t), 593 CTL_KERN, KERN_CONSDEV, CTL_EOL); 594 #if NPTY > 0 595 sysctl_createv(clog, 0, NULL, NULL, 596 CTLFLAG_PERMANENT, 597 CTLTYPE_INT, "maxptys", 598 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 599 sysctl_kern_maxptys, 0, NULL, 0, 600 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 601 #endif /* NPTY > 0 */ 602 sysctl_createv(clog, 0, NULL, NULL, 603 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 604 CTLTYPE_INT, "maxphys", 605 SYSCTL_DESCR("Maximum raw I/O transfer size"), 606 NULL, MAXPHYS, NULL, 0, 607 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 608 sysctl_createv(clog, 0, NULL, NULL, 609 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 610 CTLTYPE_INT, "sbmax", 611 SYSCTL_DESCR("Maximum socket buffer size"), 612 sysctl_kern_sbmax, 0, NULL, 0, 613 CTL_KERN, KERN_SBMAX, CTL_EOL); 614 sysctl_createv(clog, 0, NULL, NULL, 615 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 616 CTLTYPE_INT, "monotonic_clock", 617 SYSCTL_DESCR("Implementation version of the POSIX " 618 "1003.1b Monotonic Clock Option"), 619 /* XXX _POSIX_VERSION */ 620 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 621 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 622 sysctl_createv(clog, 0, NULL, NULL, 623 CTLFLAG_PERMANENT, 624 CTLTYPE_INT, "urandom", 625 SYSCTL_DESCR("Random integer value"), 626 sysctl_kern_urnd, 0, NULL, 0, 627 CTL_KERN, KERN_URND, CTL_EOL); 628 sysctl_createv(clog, 0, NULL, NULL, 629 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 630 CTLTYPE_INT, "labelsector", 631 SYSCTL_DESCR("Sector number containing the disklabel"), 632 NULL, LABELSECTOR, NULL, 0, 633 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 634 sysctl_createv(clog, 0, NULL, NULL, 635 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 636 CTLTYPE_INT, "labeloffset", 637 SYSCTL_DESCR("Offset of the disklabel within the " 638 "sector"), 639 NULL, LABELOFFSET, NULL, 0, 640 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 641 sysctl_createv(clog, 0, NULL, NULL, 642 CTLFLAG_PERMANENT, 643 CTLTYPE_NODE, "lwp", 644 SYSCTL_DESCR("System-wide LWP information"), 645 sysctl_kern_lwp, 0, NULL, 0, 646 CTL_KERN, KERN_LWP, CTL_EOL); 647 sysctl_createv(clog, 0, NULL, NULL, 648 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 649 CTLTYPE_INT, "forkfsleep", 650 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 651 "to process limits"), 652 sysctl_kern_forkfsleep, 0, NULL, 0, 653 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 654 sysctl_createv(clog, 0, NULL, NULL, 655 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 656 CTLTYPE_INT, "posix_threads", 657 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 658 "Threads option to which the system " 659 "attempts to conform"), 660 /* XXX _POSIX_VERSION */ 661 NULL, _POSIX_THREADS, NULL, 0, 662 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 663 sysctl_createv(clog, 0, NULL, NULL, 664 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 665 CTLTYPE_INT, "posix_semaphores", 666 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 667 "Semaphores option to which the system " 668 "attempts to conform"), NULL, 669 #ifdef P1003_1B_SEMAPHORE 670 200112, 671 #else /* P1003_1B_SEMAPHORE */ 672 0, 673 #endif /* P1003_1B_SEMAPHORE */ 674 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 675 sysctl_createv(clog, 0, NULL, NULL, 676 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 677 CTLTYPE_INT, "posix_barriers", 678 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 679 "Barriers option to which the system " 680 "attempts to conform"), 681 /* XXX _POSIX_VERSION */ 682 NULL, _POSIX_BARRIERS, NULL, 0, 683 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 684 sysctl_createv(clog, 0, NULL, NULL, 685 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 686 CTLTYPE_INT, "posix_timers", 687 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 688 "Timers option to which the system " 689 "attempts to conform"), 690 /* XXX _POSIX_VERSION */ 691 NULL, _POSIX_TIMERS, NULL, 0, 692 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 693 sysctl_createv(clog, 0, NULL, NULL, 694 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 695 CTLTYPE_INT, "posix_spin_locks", 696 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 697 "Locks option to which the system attempts " 698 "to conform"), 699 /* XXX _POSIX_VERSION */ 700 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 701 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 702 sysctl_createv(clog, 0, NULL, NULL, 703 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 704 CTLTYPE_INT, "posix_reader_writer_locks", 705 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 706 "Read-Write Locks option to which the " 707 "system attempts to conform"), 708 /* XXX _POSIX_VERSION */ 709 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 710 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 711 sysctl_createv(clog, 0, NULL, NULL, 712 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 713 CTLTYPE_INT, "dump_on_panic", 714 SYSCTL_DESCR("Perform a crash dump on system panic"), 715 NULL, 0, &dumponpanic, 0, 716 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 717 sysctl_createv(clog, 0, NULL, NULL, 718 CTLFLAG_PERMANENT, 719 CTLTYPE_INT, "root_partition", 720 SYSCTL_DESCR("Root partition on the root device"), 721 sysctl_kern_root_partition, 0, NULL, 0, 722 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 723 sysctl_createv(clog, 0, NULL, NULL, 724 CTLFLAG_PERMANENT, 725 CTLTYPE_STRUCT, "drivers", 726 SYSCTL_DESCR("List of all drivers with block and " 727 "character device numbers"), 728 sysctl_kern_drivers, 0, NULL, 0, 729 CTL_KERN, KERN_DRIVERS, CTL_EOL); 730 sysctl_createv(clog, 0, NULL, NULL, 731 CTLFLAG_PERMANENT, 732 CTLTYPE_STRUCT, "file2", 733 SYSCTL_DESCR("System open file table"), 734 sysctl_kern_file2, 0, NULL, 0, 735 CTL_KERN, KERN_FILE2, CTL_EOL); 736 #ifdef VERIFIED_EXEC 737 sysctl_createv(clog, 0, NULL, NULL, 738 CTLFLAG_PERMANENT, 739 CTLTYPE_NODE, "veriexec", 740 SYSCTL_DESCR("Verified Exec"), 741 NULL, 0, NULL, 0, 742 CTL_KERN, KERN_VERIEXEC, CTL_EOL); 743 sysctl_createv(clog, 0, NULL, NULL, 744 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 745 CTLTYPE_INT, "verbose", 746 SYSCTL_DESCR("Verified Exec verbose level"), 747 NULL, 0, &veriexec_verbose, 0, 748 CTL_KERN, KERN_VERIEXEC, VERIEXEC_VERBOSE, 749 CTL_EOL); 750 sysctl_createv(clog, 0, NULL, NULL, 751 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 752 CTLTYPE_INT, "strict", 753 SYSCTL_DESCR("Verified Exec strict level"), 754 sysctl_kern_veriexec, 0, NULL, 0, 755 CTL_KERN, KERN_VERIEXEC, VERIEXEC_STRICT, CTL_EOL); 756 sysctl_createv(clog, 0, NULL, NULL, 757 CTLFLAG_PERMANENT, 758 CTLTYPE_STRING, "algorithms", 759 SYSCTL_DESCR("Verified Exec supported hashing " 760 "algorithms"), 761 sysctl_kern_veriexec, 0, NULL, 0, 762 CTL_KERN, KERN_VERIEXEC, VERIEXEC_ALGORITHMS, CTL_EOL); 763 sysctl_createv(clog, 0, NULL, &veriexec_count_node, 764 CTLFLAG_PERMANENT, 765 CTLTYPE_NODE, "count", 766 SYSCTL_DESCR("Number of fingerprints on device(s)"), 767 NULL, 0, NULL, 0, 768 CTL_KERN, KERN_VERIEXEC, VERIEXEC_COUNT, CTL_EOL); 769 #endif /* VERIFIED_EXEC */ 770 } 771 772 SYSCTL_SETUP(sysctl_kern_proc_setup, 773 "sysctl kern.proc/proc2/proc_args subtree setup") 774 { 775 776 sysctl_createv(clog, 0, NULL, NULL, 777 CTLFLAG_PERMANENT, 778 CTLTYPE_NODE, "kern", NULL, 779 NULL, 0, NULL, 0, 780 CTL_KERN, CTL_EOL); 781 782 sysctl_createv(clog, 0, NULL, NULL, 783 CTLFLAG_PERMANENT, 784 CTLTYPE_NODE, "proc", 785 SYSCTL_DESCR("System-wide process information"), 786 sysctl_doeproc, 0, NULL, 0, 787 CTL_KERN, KERN_PROC, CTL_EOL); 788 sysctl_createv(clog, 0, NULL, NULL, 789 CTLFLAG_PERMANENT, 790 CTLTYPE_NODE, "proc2", 791 SYSCTL_DESCR("Machine-independent process information"), 792 sysctl_doeproc, 0, NULL, 0, 793 CTL_KERN, KERN_PROC2, CTL_EOL); 794 sysctl_createv(clog, 0, NULL, NULL, 795 CTLFLAG_PERMANENT, 796 CTLTYPE_NODE, "proc_args", 797 SYSCTL_DESCR("Process argument information"), 798 sysctl_kern_proc_args, 0, NULL, 0, 799 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 800 801 /* 802 "nodes" under these: 803 804 KERN_PROC_ALL 805 KERN_PROC_PID pid 806 KERN_PROC_PGRP pgrp 807 KERN_PROC_SESSION sess 808 KERN_PROC_TTY tty 809 KERN_PROC_UID uid 810 KERN_PROC_RUID uid 811 KERN_PROC_GID gid 812 KERN_PROC_RGID gid 813 814 all in all, probably not worth the effort... 815 */ 816 } 817 818 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 819 { 820 u_int u; 821 u_quad_t q; 822 823 sysctl_createv(clog, 0, NULL, NULL, 824 CTLFLAG_PERMANENT, 825 CTLTYPE_NODE, "hw", NULL, 826 NULL, 0, NULL, 0, 827 CTL_HW, CTL_EOL); 828 829 sysctl_createv(clog, 0, NULL, NULL, 830 CTLFLAG_PERMANENT, 831 CTLTYPE_STRING, "machine", 832 SYSCTL_DESCR("Machine class"), 833 NULL, 0, machine, 0, 834 CTL_HW, HW_MACHINE, CTL_EOL); 835 sysctl_createv(clog, 0, NULL, NULL, 836 CTLFLAG_PERMANENT, 837 CTLTYPE_STRING, "model", 838 SYSCTL_DESCR("Machine model"), 839 NULL, 0, cpu_model, 0, 840 CTL_HW, HW_MODEL, CTL_EOL); 841 sysctl_createv(clog, 0, NULL, NULL, 842 CTLFLAG_PERMANENT, 843 CTLTYPE_INT, "ncpu", 844 SYSCTL_DESCR("Number of active CPUs"), 845 sysctl_hw_ncpu, 0, NULL, 0, 846 CTL_HW, HW_NCPU, CTL_EOL); 847 sysctl_createv(clog, 0, NULL, NULL, 848 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 849 CTLTYPE_INT, "byteorder", 850 SYSCTL_DESCR("System byte order"), 851 NULL, BYTE_ORDER, NULL, 0, 852 CTL_HW, HW_BYTEORDER, CTL_EOL); 853 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 854 UINT_MAX : physmem * PAGE_SIZE; 855 sysctl_createv(clog, 0, NULL, NULL, 856 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 857 CTLTYPE_INT, "physmem", 858 SYSCTL_DESCR("Bytes of physical memory"), 859 NULL, u, NULL, 0, 860 CTL_HW, HW_PHYSMEM, CTL_EOL); 861 sysctl_createv(clog, 0, NULL, NULL, 862 CTLFLAG_PERMANENT, 863 CTLTYPE_INT, "usermem", 864 SYSCTL_DESCR("Bytes of non-kernel memory"), 865 sysctl_hw_usermem, 0, NULL, 0, 866 CTL_HW, HW_USERMEM, CTL_EOL); 867 sysctl_createv(clog, 0, NULL, NULL, 868 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 869 CTLTYPE_INT, "pagesize", 870 SYSCTL_DESCR("Software page size"), 871 NULL, PAGE_SIZE, NULL, 0, 872 CTL_HW, HW_PAGESIZE, CTL_EOL); 873 sysctl_createv(clog, 0, NULL, NULL, 874 CTLFLAG_PERMANENT, 875 CTLTYPE_STRING, "disknames", 876 SYSCTL_DESCR("List of disk devices present"), 877 sysctl_hw_disknames, 0, NULL, 0, 878 CTL_HW, HW_DISKNAMES, CTL_EOL); 879 sysctl_createv(clog, 0, NULL, NULL, 880 CTLFLAG_PERMANENT, 881 CTLTYPE_STRUCT, "diskstats", 882 SYSCTL_DESCR("Statistics on disk operation"), 883 sysctl_hw_diskstats, 0, NULL, 0, 884 CTL_HW, HW_DISKSTATS, CTL_EOL); 885 sysctl_createv(clog, 0, NULL, NULL, 886 CTLFLAG_PERMANENT, 887 CTLTYPE_STRING, "machine_arch", 888 SYSCTL_DESCR("Machine CPU class"), 889 NULL, 0, machine_arch, 0, 890 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 891 sysctl_createv(clog, 0, NULL, NULL, 892 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 893 CTLTYPE_INT, "alignbytes", 894 SYSCTL_DESCR("Alignment constraint for all possible " 895 "data types"), 896 NULL, ALIGNBYTES, NULL, 0, 897 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 898 sysctl_createv(clog, 0, NULL, NULL, 899 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 900 CTLTYPE_STRING, "cnmagic", 901 SYSCTL_DESCR("Console magic key sequence"), 902 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 903 CTL_HW, HW_CNMAGIC, CTL_EOL); 904 q = (u_quad_t)physmem * PAGE_SIZE; 905 sysctl_createv(clog, 0, NULL, NULL, 906 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 907 CTLTYPE_QUAD, "physmem64", 908 SYSCTL_DESCR("Bytes of physical memory"), 909 NULL, q, NULL, 0, 910 CTL_HW, HW_PHYSMEM64, CTL_EOL); 911 sysctl_createv(clog, 0, NULL, NULL, 912 CTLFLAG_PERMANENT, 913 CTLTYPE_QUAD, "usermem64", 914 SYSCTL_DESCR("Bytes of non-kernel memory"), 915 sysctl_hw_usermem, 0, NULL, 0, 916 CTL_HW, HW_USERMEM64, CTL_EOL); 917 } 918 919 #ifdef DEBUG 920 /* 921 * Debugging related system variables. 922 */ 923 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 924 struct ctldebug debug5, debug6, debug7, debug8, debug9; 925 struct ctldebug debug10, debug11, debug12, debug13, debug14; 926 struct ctldebug debug15, debug16, debug17, debug18, debug19; 927 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 928 &debug0, &debug1, &debug2, &debug3, &debug4, 929 &debug5, &debug6, &debug7, &debug8, &debug9, 930 &debug10, &debug11, &debug12, &debug13, &debug14, 931 &debug15, &debug16, &debug17, &debug18, &debug19, 932 }; 933 934 /* 935 * this setup routine is a replacement for debug_sysctl() 936 * 937 * note that it creates several nodes per defined debug variable 938 */ 939 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 940 { 941 struct ctldebug *cdp; 942 char nodename[20]; 943 int i; 944 945 /* 946 * two ways here: 947 * 948 * the "old" way (debug.name -> value) which was emulated by 949 * the sysctl(8) binary 950 * 951 * the new way, which the sysctl(8) binary was actually using 952 953 node debug 954 node debug.0 955 string debug.0.name 956 int debug.0.value 957 int debug.name 958 959 */ 960 961 sysctl_createv(clog, 0, NULL, NULL, 962 CTLFLAG_PERMANENT, 963 CTLTYPE_NODE, "debug", NULL, 964 NULL, 0, NULL, 0, 965 CTL_DEBUG, CTL_EOL); 966 967 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 968 cdp = debugvars[i]; 969 if (cdp->debugname == NULL || cdp->debugvar == NULL) 970 continue; 971 972 snprintf(nodename, sizeof(nodename), "debug%d", i); 973 sysctl_createv(clog, 0, NULL, NULL, 974 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 975 CTLTYPE_NODE, nodename, NULL, 976 NULL, 0, NULL, 0, 977 CTL_DEBUG, i, CTL_EOL); 978 sysctl_createv(clog, 0, NULL, NULL, 979 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 980 CTLTYPE_STRING, "name", NULL, 981 NULL, 0, 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 */ 1008 static int 1009 sysctl_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 */ 1039 static int 1040 sysctl_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 */ 1075 static int 1076 sysctl_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 */ 1103 static int 1104 sysctl_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 */ 1127 static int 1128 sysctl_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 */ 1150 static int 1151 sysctl_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 */ 1175 static int 1176 sysctl_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 */ 1196 static int 1197 sysctl_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 */ 1249 static int 1250 sysctl_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 */ 1284 static int 1285 sysctl_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 */ 1354 static int 1355 sysctl_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 */ 1384 static int 1385 sysctl_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 1523 static int 1524 sysctl_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 *buf = 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 buf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1600 memset(buf, 0, min(tsize, buflen)); 1601 1602 switch (*name) { 1603 #ifdef SYSVMSG 1604 case KERN_SYSVIPC_MSG_INFO: 1605 msgsi = (struct msg_sysctl_info *)buf; 1606 msgsi->msginfo = msginfo; 1607 break; 1608 #endif 1609 #ifdef SYSVSEM 1610 case KERN_SYSVIPC_SEM_INFO: 1611 semsi = (struct sem_sysctl_info *)buf; 1612 semsi->seminfo = seminfo; 1613 break; 1614 #endif 1615 #ifdef SYSVSHM 1616 case KERN_SYSVIPC_SHM_INFO: 1617 shmsi = (struct shm_sysctl_info *)buf; 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(buf, start, *sizep); 1654 /* If copyout succeeded, use return code set earlier. */ 1655 if (error == 0) 1656 error = ret; 1657 if (buf) 1658 free(buf, 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 */ 1674 static int 1675 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1676 { 1677 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1678 int error, max; 1679 struct sysctlnode node; 1680 1681 /* get current value of maxptys */ 1682 max = pty_maxptys(0, 0); 1683 1684 node = *rnode; 1685 node.sysctl_data = &max; 1686 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1687 if (error || newp == NULL) 1688 return (error); 1689 1690 if (max != pty_maxptys(max, 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 */ 1701 static int 1702 sysctl_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 */ 1723 static int 1724 sysctl_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 */ 1744 static int 1745 sysctl_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 */ 1806 static int 1807 sysctl_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 */ 1839 static int 1840 sysctl_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 */ 1852 static int 1853 sysctl_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 */ 1903 static int 1904 sysctl_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 needed += elem_size; 1951 if (elem_count > 0) { 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 needed += elem_size; 1985 if (elem_count > 0) { 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 2004 static void 2005 fill_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 2043 static int 2044 sysctl_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; 2088 again: 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 */ 2218 static int 2219 sysctl_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 2390 done: 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 2401 static int 2402 sysctl_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 */ 2445 static int 2446 sysctl_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 */ 2476 static int 2477 sysctl_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 2494 static int 2495 sysctl_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 */ 2519 int 2520 sysctl_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 */ 2535 int 2536 sysctl_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 */ 2560 static void 2561 fill_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 & P_SHARED; 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 */ 2738 static void 2739 fill_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 */ 2774 void 2775 fill_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 }
Cache object: ff8da081180632d4960d3f3dda9c784e
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