1 /* $NetBSD: init_sysctl.c,v 1.48 2005/07/29 14:49:00 elad Exp $ */ 2 3 /*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Brown. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: init_sysctl.c,v 1.48 2005/07/29 14:49:00 elad 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 #ifdef VERIFIED_EXEC 74 #define VERIEXEC_NEED_NODE 75 #include <sys/verified_exec.h> 76 #endif /* VERIFIED_EXEC */ 77 78 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 79 #include <sys/ipc.h> 80 #endif 81 #ifdef SYSVMSG 82 #include <sys/msg.h> 83 #endif 84 #ifdef SYSVSEM 85 #include <sys/sem.h> 86 #endif 87 #ifdef SYSVSHM 88 #include <sys/shm.h> 89 #endif 90 91 #include <machine/cpu.h> 92 93 /* 94 * try over estimating by 5 procs/lwps 95 */ 96 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 97 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 98 99 #ifndef MULTIPROCESSOR 100 #define sysctl_ncpus() (1) 101 #else /* MULTIPROCESSOR */ 102 #ifndef CPU_INFO_FOREACH 103 #define CPU_INFO_ITERATOR int 104 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 105 #endif 106 static int 107 sysctl_ncpus(void) 108 { 109 struct cpu_info *ci; 110 CPU_INFO_ITERATOR cii; 111 112 int ncpus = 0; 113 for (CPU_INFO_FOREACH(cii, ci)) 114 ncpus++; 115 return (ncpus); 116 } 117 #endif /* MULTIPROCESSOR */ 118 119 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 120 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 121 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 122 static int sysctl_kern_securelevel(SYSCTLFN_PROTO); 123 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 124 static int sysctl_setlen(SYSCTLFN_PROTO); 125 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 126 static int sysctl_kern_file(SYSCTLFN_PROTO); 127 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 128 static int sysctl_msgbuf(SYSCTLFN_PROTO); 129 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 130 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 131 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 132 static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 133 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 134 #if NPTY > 0 135 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 136 #endif /* NPTY > 0 */ 137 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 138 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 139 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 140 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 141 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 142 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 143 static int sysctl_kern_file2(SYSCTLFN_PROTO); 144 #ifdef VERIFIED_EXEC 145 static int sysctl_kern_veriexec(SYSCTLFN_PROTO); 146 #endif 147 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 148 static int sysctl_doeproc(SYSCTLFN_PROTO); 149 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 150 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 151 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 152 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 153 154 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 155 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 156 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 157 int); 158 159 /* 160 * ******************************************************************** 161 * section 1: setup routines 162 * ******************************************************************** 163 * these functions are stuffed into a link set for sysctl setup 164 * functions. they're never called or referenced from anywhere else. 165 * ******************************************************************** 166 */ 167 168 /* 169 * sets up the base nodes... 170 */ 171 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 172 { 173 174 sysctl_createv(clog, 0, NULL, NULL, 175 CTLFLAG_PERMANENT, 176 CTLTYPE_NODE, "kern", 177 SYSCTL_DESCR("High kernel"), 178 NULL, 0, NULL, 0, 179 CTL_KERN, CTL_EOL); 180 sysctl_createv(clog, 0, NULL, NULL, 181 CTLFLAG_PERMANENT, 182 CTLTYPE_NODE, "vm", 183 SYSCTL_DESCR("Virtual memory"), 184 NULL, 0, NULL, 0, 185 CTL_VM, CTL_EOL); 186 sysctl_createv(clog, 0, NULL, NULL, 187 CTLFLAG_PERMANENT, 188 CTLTYPE_NODE, "vfs", 189 SYSCTL_DESCR("Filesystem"), 190 NULL, 0, NULL, 0, 191 CTL_VFS, CTL_EOL); 192 sysctl_createv(clog, 0, NULL, NULL, 193 CTLFLAG_PERMANENT, 194 CTLTYPE_NODE, "net", 195 SYSCTL_DESCR("Networking"), 196 NULL, 0, NULL, 0, 197 CTL_NET, CTL_EOL); 198 sysctl_createv(clog, 0, NULL, NULL, 199 CTLFLAG_PERMANENT, 200 CTLTYPE_NODE, "debug", 201 SYSCTL_DESCR("Debugging"), 202 NULL, 0, NULL, 0, 203 CTL_DEBUG, CTL_EOL); 204 sysctl_createv(clog, 0, NULL, NULL, 205 CTLFLAG_PERMANENT, 206 CTLTYPE_NODE, "hw", 207 SYSCTL_DESCR("Generic CPU, I/O"), 208 NULL, 0, NULL, 0, 209 CTL_HW, CTL_EOL); 210 sysctl_createv(clog, 0, NULL, NULL, 211 CTLFLAG_PERMANENT, 212 CTLTYPE_NODE, "machdep", 213 SYSCTL_DESCR("Machine dependent"), 214 NULL, 0, NULL, 0, 215 CTL_MACHDEP, CTL_EOL); 216 /* 217 * this node is inserted so that the sysctl nodes in libc can 218 * operate. 219 */ 220 sysctl_createv(clog, 0, NULL, NULL, 221 CTLFLAG_PERMANENT, 222 CTLTYPE_NODE, "user", 223 SYSCTL_DESCR("User-level"), 224 NULL, 0, NULL, 0, 225 CTL_USER, CTL_EOL); 226 sysctl_createv(clog, 0, NULL, NULL, 227 CTLFLAG_PERMANENT, 228 CTLTYPE_NODE, "ddb", 229 SYSCTL_DESCR("In-kernel debugger"), 230 NULL, 0, NULL, 0, 231 CTL_DDB, CTL_EOL); 232 sysctl_createv(clog, 0, NULL, NULL, 233 CTLFLAG_PERMANENT, 234 CTLTYPE_NODE, "proc", 235 SYSCTL_DESCR("Per-process"), 236 NULL, 0, NULL, 0, 237 CTL_PROC, CTL_EOL); 238 sysctl_createv(clog, 0, NULL, NULL, 239 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 240 CTLTYPE_NODE, "vendor", 241 SYSCTL_DESCR("Vendor specific"), 242 NULL, 0, NULL, 0, 243 CTL_VENDOR, CTL_EOL); 244 sysctl_createv(clog, 0, NULL, NULL, 245 CTLFLAG_PERMANENT, 246 CTLTYPE_NODE, "emul", 247 SYSCTL_DESCR("Emulation settings"), 248 NULL, 0, NULL, 0, 249 CTL_EMUL, CTL_EOL); 250 } 251 252 /* 253 * this setup routine is a replacement for kern_sysctl() 254 */ 255 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 256 { 257 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 258 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 259 extern int dumponpanic; /* defined in kern/subr_prf.c */ 260 261 sysctl_createv(clog, 0, NULL, NULL, 262 CTLFLAG_PERMANENT, 263 CTLTYPE_NODE, "kern", NULL, 264 NULL, 0, NULL, 0, 265 CTL_KERN, CTL_EOL); 266 267 sysctl_createv(clog, 0, NULL, NULL, 268 CTLFLAG_PERMANENT, 269 CTLTYPE_STRING, "ostype", 270 SYSCTL_DESCR("Operating system type"), 271 NULL, 0, &ostype, 0, 272 CTL_KERN, KERN_OSTYPE, CTL_EOL); 273 sysctl_createv(clog, 0, NULL, NULL, 274 CTLFLAG_PERMANENT, 275 CTLTYPE_STRING, "osrelease", 276 SYSCTL_DESCR("Operating system release"), 277 NULL, 0, &osrelease, 0, 278 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 279 sysctl_createv(clog, 0, NULL, NULL, 280 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 281 CTLTYPE_INT, "osrevision", 282 SYSCTL_DESCR("Operating system revision"), 283 NULL, __NetBSD_Version__, NULL, 0, 284 CTL_KERN, KERN_OSREV, CTL_EOL); 285 sysctl_createv(clog, 0, NULL, NULL, 286 CTLFLAG_PERMANENT, 287 CTLTYPE_STRING, "version", 288 SYSCTL_DESCR("Kernel version"), 289 NULL, 0, &version, 0, 290 CTL_KERN, KERN_VERSION, CTL_EOL); 291 sysctl_createv(clog, 0, NULL, NULL, 292 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 293 CTLTYPE_INT, "maxvnodes", 294 SYSCTL_DESCR("Maximum number of vnodes"), 295 sysctl_kern_maxvnodes, 0, NULL, 0, 296 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 297 sysctl_createv(clog, 0, NULL, NULL, 298 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 299 CTLTYPE_INT, "maxproc", 300 SYSCTL_DESCR("Maximum number of simultaneous processes"), 301 sysctl_kern_maxproc, 0, NULL, 0, 302 CTL_KERN, KERN_MAXPROC, CTL_EOL); 303 sysctl_createv(clog, 0, NULL, NULL, 304 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 305 CTLTYPE_INT, "maxfiles", 306 SYSCTL_DESCR("Maximum number of open files"), 307 NULL, 0, &maxfiles, 0, 308 CTL_KERN, KERN_MAXFILES, CTL_EOL); 309 sysctl_createv(clog, 0, NULL, NULL, 310 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 311 CTLTYPE_INT, "argmax", 312 SYSCTL_DESCR("Maximum number of bytes of arguments to " 313 "execve(2)"), 314 NULL, ARG_MAX, NULL, 0, 315 CTL_KERN, KERN_ARGMAX, CTL_EOL); 316 sysctl_createv(clog, 0, NULL, NULL, 317 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 318 CTLTYPE_INT, "securelevel", 319 SYSCTL_DESCR("System security level"), 320 sysctl_kern_securelevel, 0, &securelevel, 0, 321 CTL_KERN, KERN_SECURELVL, CTL_EOL); 322 sysctl_createv(clog, 0, NULL, NULL, 323 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 324 CTLTYPE_STRING, "hostname", 325 SYSCTL_DESCR("System hostname"), 326 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 327 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 328 sysctl_createv(clog, 0, NULL, NULL, 329 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 330 CTLTYPE_INT, "hostid", 331 SYSCTL_DESCR("System host ID number"), 332 sysctl_kern_hostid, 0, NULL, 0, 333 CTL_KERN, KERN_HOSTID, CTL_EOL); 334 sysctl_createv(clog, 0, NULL, NULL, 335 CTLFLAG_PERMANENT, 336 CTLTYPE_STRUCT, "clockrate", 337 SYSCTL_DESCR("Kernel clock rates"), 338 sysctl_kern_clockrate, 0, NULL, 339 sizeof(struct clockinfo), 340 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 341 sysctl_createv(clog, 0, NULL, NULL, 342 CTLFLAG_PERMANENT, 343 CTLTYPE_STRUCT, "vnode", 344 SYSCTL_DESCR("System vnode table"), 345 sysctl_kern_vnode, 0, NULL, 0, 346 CTL_KERN, KERN_VNODE, CTL_EOL); 347 sysctl_createv(clog, 0, NULL, NULL, 348 CTLFLAG_PERMANENT, 349 CTLTYPE_STRUCT, "file", 350 SYSCTL_DESCR("System open file table"), 351 sysctl_kern_file, 0, NULL, 0, 352 CTL_KERN, KERN_FILE, CTL_EOL); 353 #ifndef GPROF 354 sysctl_createv(clog, 0, NULL, NULL, 355 CTLFLAG_PERMANENT, 356 CTLTYPE_NODE, "profiling", 357 SYSCTL_DESCR("Profiling information (not available)"), 358 sysctl_notavail, 0, NULL, 0, 359 CTL_KERN, KERN_PROF, CTL_EOL); 360 #endif 361 sysctl_createv(clog, 0, NULL, NULL, 362 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 363 CTLTYPE_INT, "posix1version", 364 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 365 "with which the operating system attempts " 366 "to comply"), 367 NULL, _POSIX_VERSION, NULL, 0, 368 CTL_KERN, KERN_POSIX1, CTL_EOL); 369 sysctl_createv(clog, 0, NULL, NULL, 370 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 371 CTLTYPE_INT, "ngroups", 372 SYSCTL_DESCR("Maximum number of supplemental groups"), 373 NULL, NGROUPS_MAX, NULL, 0, 374 CTL_KERN, KERN_NGROUPS, CTL_EOL); 375 sysctl_createv(clog, 0, NULL, NULL, 376 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 377 CTLTYPE_INT, "job_control", 378 SYSCTL_DESCR("Whether job control is available"), 379 NULL, 1, NULL, 0, 380 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 381 sysctl_createv(clog, 0, NULL, NULL, 382 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 383 CTLTYPE_INT, "saved_ids", 384 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 385 "available"), NULL, 386 #ifdef _POSIX_SAVED_IDS 387 1, 388 #else /* _POSIX_SAVED_IDS */ 389 0, 390 #endif /* _POSIX_SAVED_IDS */ 391 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 392 sysctl_createv(clog, 0, NULL, NULL, 393 CTLFLAG_PERMANENT, 394 CTLTYPE_STRUCT, "boottime", 395 SYSCTL_DESCR("System boot time"), 396 NULL, 0, &boottime, sizeof(boottime), 397 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 398 sysctl_createv(clog, 0, NULL, NULL, 399 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 400 CTLTYPE_STRING, "domainname", 401 SYSCTL_DESCR("YP domain name"), 402 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 403 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 404 sysctl_createv(clog, 0, NULL, NULL, 405 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 406 CTLTYPE_INT, "maxpartitions", 407 SYSCTL_DESCR("Maximum number of partitions allowed per " 408 "disk"), 409 NULL, MAXPARTITIONS, NULL, 0, 410 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 411 sysctl_createv(clog, 0, NULL, NULL, 412 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 413 CTLTYPE_INT, "rawpartition", 414 SYSCTL_DESCR("Raw partition of a disk"), 415 NULL, RAW_PART, NULL, 0, 416 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 417 sysctl_createv(clog, 0, NULL, NULL, 418 CTLFLAG_PERMANENT, 419 CTLTYPE_STRUCT, "timex", NULL, 420 sysctl_notavail, 0, NULL, 0, 421 CTL_KERN, KERN_TIMEX, CTL_EOL); 422 sysctl_createv(clog, 0, NULL, NULL, 423 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 424 CTLTYPE_INT, "autonicetime", 425 SYSCTL_DESCR("CPU clock seconds before non-root " 426 "process priority is lowered"), 427 sysctl_kern_autonice, 0, &autonicetime, 0, 428 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 429 sysctl_createv(clog, 0, NULL, NULL, 430 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 431 CTLTYPE_INT, "autoniceval", 432 SYSCTL_DESCR("Automatic reniced non-root process " 433 "priority"), 434 sysctl_kern_autonice, 0, &autoniceval, 0, 435 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 436 sysctl_createv(clog, 0, NULL, NULL, 437 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 438 CTLTYPE_INT, "rtc_offset", 439 SYSCTL_DESCR("Offset of real time clock from UTC in " 440 "minutes"), 441 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 442 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 443 sysctl_createv(clog, 0, NULL, NULL, 444 CTLFLAG_PERMANENT, 445 CTLTYPE_STRING, "root_device", 446 SYSCTL_DESCR("Name of the root device"), 447 sysctl_root_device, 0, NULL, 0, 448 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 449 sysctl_createv(clog, 0, NULL, NULL, 450 CTLFLAG_PERMANENT, 451 CTLTYPE_INT, "msgbufsize", 452 SYSCTL_DESCR("Size of the kernel message buffer"), 453 sysctl_msgbuf, 0, NULL, 0, 454 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 455 sysctl_createv(clog, 0, NULL, NULL, 456 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 457 CTLTYPE_INT, "fsync", 458 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 459 "Synchronization Option is available on " 460 "this system"), 461 NULL, 1, NULL, 0, 462 CTL_KERN, KERN_FSYNC, CTL_EOL); 463 sysctl_createv(clog, 0, NULL, NULL, 464 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 465 CTLTYPE_INT, "sysvmsg", 466 SYSCTL_DESCR("System V style message support available"), 467 NULL, 468 #ifdef SYSVMSG 469 1, 470 #else /* SYSVMSG */ 471 0, 472 #endif /* SYSVMSG */ 473 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 474 sysctl_createv(clog, 0, NULL, NULL, 475 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 476 CTLTYPE_INT, "sysvsem", 477 SYSCTL_DESCR("System V style semaphore support " 478 "available"), NULL, 479 #ifdef SYSVSEM 480 1, 481 #else /* SYSVSEM */ 482 0, 483 #endif /* SYSVSEM */ 484 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 485 sysctl_createv(clog, 0, NULL, NULL, 486 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 487 CTLTYPE_INT, "sysvshm", 488 SYSCTL_DESCR("System V style shared memory support " 489 "available"), NULL, 490 #ifdef SYSVSHM 491 1, 492 #else /* SYSVSHM */ 493 0, 494 #endif /* SYSVSHM */ 495 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 496 sysctl_createv(clog, 0, NULL, NULL, 497 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 498 CTLTYPE_INT, "synchronized_io", 499 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 500 "I/O Option is available on this system"), 501 NULL, 1, NULL, 0, 502 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 503 sysctl_createv(clog, 0, NULL, NULL, 504 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 505 CTLTYPE_INT, "iov_max", 506 SYSCTL_DESCR("Maximum number of iovec structures per " 507 "process"), 508 NULL, IOV_MAX, NULL, 0, 509 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 510 sysctl_createv(clog, 0, NULL, NULL, 511 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 512 CTLTYPE_INT, "mapped_files", 513 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 514 "Files Option is available on this system"), 515 NULL, 1, NULL, 0, 516 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 517 sysctl_createv(clog, 0, NULL, NULL, 518 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 519 CTLTYPE_INT, "memlock", 520 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 521 "Locking Option is available on this " 522 "system"), 523 NULL, 1, NULL, 0, 524 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 525 sysctl_createv(clog, 0, NULL, NULL, 526 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 527 CTLTYPE_INT, "memlock_range", 528 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 529 "Locking Option is available on this " 530 "system"), 531 NULL, 1, NULL, 0, 532 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 533 sysctl_createv(clog, 0, NULL, NULL, 534 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 535 CTLTYPE_INT, "memory_protection", 536 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 537 "Protection Option is available on this " 538 "system"), 539 NULL, 1, NULL, 0, 540 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 541 sysctl_createv(clog, 0, NULL, NULL, 542 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 543 CTLTYPE_INT, "login_name_max", 544 SYSCTL_DESCR("Maximum login name length"), 545 NULL, LOGIN_NAME_MAX, NULL, 0, 546 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 547 sysctl_createv(clog, 0, NULL, NULL, 548 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 549 CTLTYPE_STRING, "defcorename", 550 SYSCTL_DESCR("Default core file name"), 551 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 552 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 553 sysctl_createv(clog, 0, NULL, NULL, 554 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 555 CTLTYPE_INT, "logsigexit", 556 SYSCTL_DESCR("Log process exit when caused by signals"), 557 NULL, 0, &kern_logsigexit, 0, 558 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 559 sysctl_createv(clog, 0, NULL, NULL, 560 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 561 CTLTYPE_INT, "fscale", 562 SYSCTL_DESCR("Kernel fixed-point scale factor"), 563 NULL, FSCALE, NULL, 0, 564 CTL_KERN, KERN_FSCALE, CTL_EOL); 565 sysctl_createv(clog, 0, NULL, NULL, 566 CTLFLAG_PERMANENT, 567 CTLTYPE_INT, "ccpu", 568 SYSCTL_DESCR("Scheduler exponential decay value"), 569 NULL, 0, &ccpu, 0, 570 CTL_KERN, KERN_CCPU, CTL_EOL); 571 sysctl_createv(clog, 0, NULL, NULL, 572 CTLFLAG_PERMANENT, 573 CTLTYPE_STRUCT, "cp_time", 574 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 575 sysctl_kern_cptime, 0, NULL, 0, 576 CTL_KERN, KERN_CP_TIME, CTL_EOL); 577 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 578 sysctl_createv(clog, 0, NULL, NULL, 579 CTLFLAG_PERMANENT, 580 CTLTYPE_STRUCT, "sysvipc_info", 581 SYSCTL_DESCR("System V style IPC information"), 582 sysctl_kern_sysvipc, 0, NULL, 0, 583 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 584 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 585 sysctl_createv(clog, 0, NULL, NULL, 586 CTLFLAG_PERMANENT, 587 CTLTYPE_INT, "msgbuf", 588 SYSCTL_DESCR("Kernel message buffer"), 589 sysctl_msgbuf, 0, NULL, 0, 590 CTL_KERN, KERN_MSGBUF, CTL_EOL); 591 sysctl_createv(clog, 0, NULL, NULL, 592 CTLFLAG_PERMANENT, 593 CTLTYPE_STRUCT, "consdev", 594 SYSCTL_DESCR("Console device"), 595 sysctl_consdev, 0, NULL, sizeof(dev_t), 596 CTL_KERN, KERN_CONSDEV, CTL_EOL); 597 #if NPTY > 0 598 sysctl_createv(clog, 0, NULL, NULL, 599 CTLFLAG_PERMANENT, 600 CTLTYPE_INT, "maxptys", 601 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 602 sysctl_kern_maxptys, 0, NULL, 0, 603 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 604 #endif /* NPTY > 0 */ 605 sysctl_createv(clog, 0, NULL, NULL, 606 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 607 CTLTYPE_INT, "maxphys", 608 SYSCTL_DESCR("Maximum raw I/O transfer size"), 609 NULL, MAXPHYS, NULL, 0, 610 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 611 sysctl_createv(clog, 0, NULL, NULL, 612 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 613 CTLTYPE_INT, "sbmax", 614 SYSCTL_DESCR("Maximum socket buffer size"), 615 sysctl_kern_sbmax, 0, NULL, 0, 616 CTL_KERN, KERN_SBMAX, CTL_EOL); 617 sysctl_createv(clog, 0, NULL, NULL, 618 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 619 CTLTYPE_INT, "monotonic_clock", 620 SYSCTL_DESCR("Implementation version of the POSIX " 621 "1003.1b Monotonic Clock Option"), 622 /* XXX _POSIX_VERSION */ 623 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 624 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 625 sysctl_createv(clog, 0, NULL, NULL, 626 CTLFLAG_PERMANENT, 627 CTLTYPE_INT, "urandom", 628 SYSCTL_DESCR("Random integer value"), 629 sysctl_kern_urnd, 0, NULL, 0, 630 CTL_KERN, KERN_URND, CTL_EOL); 631 sysctl_createv(clog, 0, NULL, NULL, 632 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 633 CTLTYPE_INT, "labelsector", 634 SYSCTL_DESCR("Sector number containing the disklabel"), 635 NULL, LABELSECTOR, NULL, 0, 636 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 637 sysctl_createv(clog, 0, NULL, NULL, 638 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 639 CTLTYPE_INT, "labeloffset", 640 SYSCTL_DESCR("Offset of the disklabel within the " 641 "sector"), 642 NULL, LABELOFFSET, NULL, 0, 643 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 644 sysctl_createv(clog, 0, NULL, NULL, 645 CTLFLAG_PERMANENT, 646 CTLTYPE_NODE, "lwp", 647 SYSCTL_DESCR("System-wide LWP information"), 648 sysctl_kern_lwp, 0, NULL, 0, 649 CTL_KERN, KERN_LWP, CTL_EOL); 650 sysctl_createv(clog, 0, NULL, NULL, 651 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 652 CTLTYPE_INT, "forkfsleep", 653 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 654 "to process limits"), 655 sysctl_kern_forkfsleep, 0, NULL, 0, 656 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 657 sysctl_createv(clog, 0, NULL, NULL, 658 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 659 CTLTYPE_INT, "posix_threads", 660 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 661 "Threads option to which the system " 662 "attempts to conform"), 663 /* XXX _POSIX_VERSION */ 664 NULL, _POSIX_THREADS, NULL, 0, 665 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 666 sysctl_createv(clog, 0, NULL, NULL, 667 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 668 CTLTYPE_INT, "posix_semaphores", 669 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 670 "Semaphores option to which the system " 671 "attempts to conform"), NULL, 672 #ifdef P1003_1B_SEMAPHORE 673 200112, 674 #else /* P1003_1B_SEMAPHORE */ 675 0, 676 #endif /* P1003_1B_SEMAPHORE */ 677 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 678 sysctl_createv(clog, 0, NULL, NULL, 679 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 680 CTLTYPE_INT, "posix_barriers", 681 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 682 "Barriers option to which the system " 683 "attempts to conform"), 684 /* XXX _POSIX_VERSION */ 685 NULL, _POSIX_BARRIERS, NULL, 0, 686 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 687 sysctl_createv(clog, 0, NULL, NULL, 688 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 689 CTLTYPE_INT, "posix_timers", 690 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 691 "Timers option to which the system " 692 "attempts to conform"), 693 /* XXX _POSIX_VERSION */ 694 NULL, _POSIX_TIMERS, NULL, 0, 695 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 696 sysctl_createv(clog, 0, NULL, NULL, 697 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 698 CTLTYPE_INT, "posix_spin_locks", 699 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 700 "Locks option to which the system attempts " 701 "to conform"), 702 /* XXX _POSIX_VERSION */ 703 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 704 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 705 sysctl_createv(clog, 0, NULL, NULL, 706 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 707 CTLTYPE_INT, "posix_reader_writer_locks", 708 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 709 "Read-Write Locks option to which the " 710 "system attempts to conform"), 711 /* XXX _POSIX_VERSION */ 712 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 713 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 714 sysctl_createv(clog, 0, NULL, NULL, 715 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 716 CTLTYPE_INT, "dump_on_panic", 717 SYSCTL_DESCR("Perform a crash dump on system panic"), 718 NULL, 0, &dumponpanic, 0, 719 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 720 sysctl_createv(clog, 0, NULL, NULL, 721 CTLFLAG_PERMANENT, 722 CTLTYPE_INT, "root_partition", 723 SYSCTL_DESCR("Root partition on the root device"), 724 sysctl_kern_root_partition, 0, NULL, 0, 725 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 726 sysctl_createv(clog, 0, NULL, NULL, 727 CTLFLAG_PERMANENT, 728 CTLTYPE_STRUCT, "drivers", 729 SYSCTL_DESCR("List of all drivers with block and " 730 "character device numbers"), 731 sysctl_kern_drivers, 0, NULL, 0, 732 CTL_KERN, KERN_DRIVERS, CTL_EOL); 733 sysctl_createv(clog, 0, NULL, NULL, 734 CTLFLAG_PERMANENT, 735 CTLTYPE_STRUCT, "file2", 736 SYSCTL_DESCR("System open file table"), 737 sysctl_kern_file2, 0, NULL, 0, 738 CTL_KERN, KERN_FILE2, CTL_EOL); 739 #ifdef VERIFIED_EXEC 740 sysctl_createv(clog, 0, NULL, NULL, 741 CTLFLAG_PERMANENT, 742 CTLTYPE_NODE, "veriexec", 743 SYSCTL_DESCR("Verified Exec"), 744 NULL, 0, NULL, 0, 745 CTL_KERN, KERN_VERIEXEC, CTL_EOL); 746 sysctl_createv(clog, 0, NULL, NULL, 747 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 748 CTLTYPE_INT, "verbose", 749 SYSCTL_DESCR("Verified Exec verbose level"), 750 NULL, 0, &veriexec_verbose, 0, 751 CTL_KERN, KERN_VERIEXEC, VERIEXEC_VERBOSE, 752 CTL_EOL); 753 sysctl_createv(clog, 0, NULL, NULL, 754 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 755 CTLTYPE_INT, "strict", 756 SYSCTL_DESCR("Verified Exec strict level"), 757 sysctl_kern_veriexec, 0, NULL, 0, 758 CTL_KERN, KERN_VERIEXEC, VERIEXEC_STRICT, CTL_EOL); 759 sysctl_createv(clog, 0, NULL, NULL, 760 CTLFLAG_PERMANENT, 761 CTLTYPE_STRING, "algorithms", 762 SYSCTL_DESCR("Verified Exec supported hashing " 763 "algorithms"), 764 sysctl_kern_veriexec, 0, NULL, 0, 765 CTL_KERN, KERN_VERIEXEC, VERIEXEC_ALGORITHMS, CTL_EOL); 766 sysctl_createv(clog, 0, NULL, &veriexec_count_node, 767 CTLFLAG_PERMANENT, 768 CTLTYPE_NODE, "count", 769 SYSCTL_DESCR("Number of fingerprints on device(s)"), 770 NULL, 0, NULL, 0, 771 CTL_KERN, KERN_VERIEXEC, VERIEXEC_COUNT, CTL_EOL); 772 #endif /* VERIFIED_EXEC */ 773 sysctl_createv(clog, 0, NULL, NULL, 774 CTLFLAG_PERMANENT, 775 CTLTYPE_STRUCT, "cp_id", 776 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 777 sysctl_kern_cpid, 0, NULL, 0, 778 CTL_KERN, KERN_CP_ID, CTL_EOL); 779 } 780 781 SYSCTL_SETUP(sysctl_kern_proc_setup, 782 "sysctl kern.proc/proc2/proc_args subtree setup") 783 { 784 785 sysctl_createv(clog, 0, NULL, NULL, 786 CTLFLAG_PERMANENT, 787 CTLTYPE_NODE, "kern", NULL, 788 NULL, 0, NULL, 0, 789 CTL_KERN, CTL_EOL); 790 791 sysctl_createv(clog, 0, NULL, NULL, 792 CTLFLAG_PERMANENT, 793 CTLTYPE_NODE, "proc", 794 SYSCTL_DESCR("System-wide process information"), 795 sysctl_doeproc, 0, NULL, 0, 796 CTL_KERN, KERN_PROC, CTL_EOL); 797 sysctl_createv(clog, 0, NULL, NULL, 798 CTLFLAG_PERMANENT, 799 CTLTYPE_NODE, "proc2", 800 SYSCTL_DESCR("Machine-independent process information"), 801 sysctl_doeproc, 0, NULL, 0, 802 CTL_KERN, KERN_PROC2, CTL_EOL); 803 sysctl_createv(clog, 0, NULL, NULL, 804 CTLFLAG_PERMANENT, 805 CTLTYPE_NODE, "proc_args", 806 SYSCTL_DESCR("Process argument information"), 807 sysctl_kern_proc_args, 0, NULL, 0, 808 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 809 810 /* 811 "nodes" under these: 812 813 KERN_PROC_ALL 814 KERN_PROC_PID pid 815 KERN_PROC_PGRP pgrp 816 KERN_PROC_SESSION sess 817 KERN_PROC_TTY tty 818 KERN_PROC_UID uid 819 KERN_PROC_RUID uid 820 KERN_PROC_GID gid 821 KERN_PROC_RGID gid 822 823 all in all, probably not worth the effort... 824 */ 825 } 826 827 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 828 { 829 u_int u; 830 u_quad_t q; 831 832 sysctl_createv(clog, 0, NULL, NULL, 833 CTLFLAG_PERMANENT, 834 CTLTYPE_NODE, "hw", NULL, 835 NULL, 0, NULL, 0, 836 CTL_HW, CTL_EOL); 837 838 sysctl_createv(clog, 0, NULL, NULL, 839 CTLFLAG_PERMANENT, 840 CTLTYPE_STRING, "machine", 841 SYSCTL_DESCR("Machine class"), 842 NULL, 0, machine, 0, 843 CTL_HW, HW_MACHINE, CTL_EOL); 844 sysctl_createv(clog, 0, NULL, NULL, 845 CTLFLAG_PERMANENT, 846 CTLTYPE_STRING, "model", 847 SYSCTL_DESCR("Machine model"), 848 NULL, 0, cpu_model, 0, 849 CTL_HW, HW_MODEL, CTL_EOL); 850 sysctl_createv(clog, 0, NULL, NULL, 851 CTLFLAG_PERMANENT, 852 CTLTYPE_INT, "ncpu", 853 SYSCTL_DESCR("Number of active CPUs"), 854 sysctl_hw_ncpu, 0, NULL, 0, 855 CTL_HW, HW_NCPU, CTL_EOL); 856 sysctl_createv(clog, 0, NULL, NULL, 857 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 858 CTLTYPE_INT, "byteorder", 859 SYSCTL_DESCR("System byte order"), 860 NULL, BYTE_ORDER, NULL, 0, 861 CTL_HW, HW_BYTEORDER, CTL_EOL); 862 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 863 UINT_MAX : physmem * PAGE_SIZE; 864 sysctl_createv(clog, 0, NULL, NULL, 865 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 866 CTLTYPE_INT, "physmem", 867 SYSCTL_DESCR("Bytes of physical memory"), 868 NULL, u, NULL, 0, 869 CTL_HW, HW_PHYSMEM, CTL_EOL); 870 sysctl_createv(clog, 0, NULL, NULL, 871 CTLFLAG_PERMANENT, 872 CTLTYPE_INT, "usermem", 873 SYSCTL_DESCR("Bytes of non-kernel memory"), 874 sysctl_hw_usermem, 0, NULL, 0, 875 CTL_HW, HW_USERMEM, CTL_EOL); 876 sysctl_createv(clog, 0, NULL, NULL, 877 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 878 CTLTYPE_INT, "pagesize", 879 SYSCTL_DESCR("Software page size"), 880 NULL, PAGE_SIZE, NULL, 0, 881 CTL_HW, HW_PAGESIZE, CTL_EOL); 882 sysctl_createv(clog, 0, NULL, NULL, 883 CTLFLAG_PERMANENT, 884 CTLTYPE_STRING, "disknames", 885 SYSCTL_DESCR("List of disk devices present"), 886 sysctl_hw_disknames, 0, NULL, 0, 887 CTL_HW, HW_DISKNAMES, CTL_EOL); 888 sysctl_createv(clog, 0, NULL, NULL, 889 CTLFLAG_PERMANENT, 890 CTLTYPE_STRUCT, "diskstats", 891 SYSCTL_DESCR("Statistics on disk operation"), 892 sysctl_hw_diskstats, 0, NULL, 0, 893 CTL_HW, HW_DISKSTATS, CTL_EOL); 894 sysctl_createv(clog, 0, NULL, NULL, 895 CTLFLAG_PERMANENT, 896 CTLTYPE_STRING, "machine_arch", 897 SYSCTL_DESCR("Machine CPU class"), 898 NULL, 0, machine_arch, 0, 899 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 900 sysctl_createv(clog, 0, NULL, NULL, 901 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 902 CTLTYPE_INT, "alignbytes", 903 SYSCTL_DESCR("Alignment constraint for all possible " 904 "data types"), 905 NULL, ALIGNBYTES, NULL, 0, 906 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 907 sysctl_createv(clog, 0, NULL, NULL, 908 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 909 CTLTYPE_STRING, "cnmagic", 910 SYSCTL_DESCR("Console magic key sequence"), 911 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 912 CTL_HW, HW_CNMAGIC, CTL_EOL); 913 q = (u_quad_t)physmem * PAGE_SIZE; 914 sysctl_createv(clog, 0, NULL, NULL, 915 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 916 CTLTYPE_QUAD, "physmem64", 917 SYSCTL_DESCR("Bytes of physical memory"), 918 NULL, q, NULL, 0, 919 CTL_HW, HW_PHYSMEM64, CTL_EOL); 920 sysctl_createv(clog, 0, NULL, NULL, 921 CTLFLAG_PERMANENT, 922 CTLTYPE_QUAD, "usermem64", 923 SYSCTL_DESCR("Bytes of non-kernel memory"), 924 sysctl_hw_usermem, 0, NULL, 0, 925 CTL_HW, HW_USERMEM64, CTL_EOL); 926 } 927 928 #ifdef DEBUG 929 /* 930 * Debugging related system variables. 931 */ 932 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 933 struct ctldebug debug5, debug6, debug7, debug8, debug9; 934 struct ctldebug debug10, debug11, debug12, debug13, debug14; 935 struct ctldebug debug15, debug16, debug17, debug18, debug19; 936 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 937 &debug0, &debug1, &debug2, &debug3, &debug4, 938 &debug5, &debug6, &debug7, &debug8, &debug9, 939 &debug10, &debug11, &debug12, &debug13, &debug14, 940 &debug15, &debug16, &debug17, &debug18, &debug19, 941 }; 942 943 /* 944 * this setup routine is a replacement for debug_sysctl() 945 * 946 * note that it creates several nodes per defined debug variable 947 */ 948 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 949 { 950 struct ctldebug *cdp; 951 char nodename[20]; 952 int i; 953 954 /* 955 * two ways here: 956 * 957 * the "old" way (debug.name -> value) which was emulated by 958 * the sysctl(8) binary 959 * 960 * the new way, which the sysctl(8) binary was actually using 961 962 node debug 963 node debug.0 964 string debug.0.name 965 int debug.0.value 966 int debug.name 967 968 */ 969 970 sysctl_createv(clog, 0, NULL, NULL, 971 CTLFLAG_PERMANENT, 972 CTLTYPE_NODE, "debug", NULL, 973 NULL, 0, NULL, 0, 974 CTL_DEBUG, CTL_EOL); 975 976 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 977 cdp = debugvars[i]; 978 if (cdp->debugname == NULL || cdp->debugvar == NULL) 979 continue; 980 981 snprintf(nodename, sizeof(nodename), "debug%d", i); 982 sysctl_createv(clog, 0, NULL, NULL, 983 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 984 CTLTYPE_NODE, nodename, NULL, 985 NULL, 0, NULL, 0, 986 CTL_DEBUG, i, CTL_EOL); 987 sysctl_createv(clog, 0, NULL, NULL, 988 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 989 CTLTYPE_STRING, "name", NULL, 990 /*XXXUNCONST*/ 991 NULL, 0, __UNCONST(cdp->debugname), 0, 992 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 993 sysctl_createv(clog, 0, NULL, NULL, 994 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 995 CTLTYPE_INT, "value", NULL, 996 NULL, 0, cdp->debugvar, 0, 997 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 998 sysctl_createv(clog, 0, NULL, NULL, 999 CTLFLAG_PERMANENT, 1000 CTLTYPE_INT, cdp->debugname, NULL, 1001 NULL, 0, cdp->debugvar, 0, 1002 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1003 } 1004 } 1005 #endif /* DEBUG */ 1006 1007 /* 1008 * ******************************************************************** 1009 * section 2: private node-specific helper routines. 1010 * ******************************************************************** 1011 */ 1012 1013 /* 1014 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1015 * new value is lower than desiredvnodes and then calls reinit 1016 * routines that needs to adjust to the new value. 1017 */ 1018 static int 1019 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1020 { 1021 int error, new_vnodes, old_vnodes; 1022 struct sysctlnode node; 1023 1024 new_vnodes = desiredvnodes; 1025 node = *rnode; 1026 node.sysctl_data = &new_vnodes; 1027 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1028 if (error || newp == NULL) 1029 return (error); 1030 1031 old_vnodes = desiredvnodes; 1032 desiredvnodes = new_vnodes; 1033 if (new_vnodes < old_vnodes) { 1034 error = vfs_drainvnodes(new_vnodes, l->l_proc); 1035 if (error) { 1036 desiredvnodes = old_vnodes; 1037 return (error); 1038 } 1039 } 1040 vfs_reinit(); 1041 nchreinit(); 1042 1043 return (0); 1044 } 1045 1046 /* 1047 * sysctl helper routine for rtc_offset - set time after changes 1048 */ 1049 static int 1050 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1051 { 1052 struct timeval tv, delta; 1053 int s, error, new_rtc_offset; 1054 struct sysctlnode node; 1055 1056 new_rtc_offset = rtc_offset; 1057 node = *rnode; 1058 node.sysctl_data = &new_rtc_offset; 1059 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1060 if (error || newp == NULL) 1061 return (error); 1062 1063 if (securelevel > 0) 1064 return (EPERM); 1065 if (rtc_offset == new_rtc_offset) 1066 return (0); 1067 1068 /* if we change the offset, adjust the time */ 1069 s = splclock(); 1070 tv = time; 1071 splx(s); 1072 delta.tv_sec = 60*(new_rtc_offset - rtc_offset); 1073 delta.tv_usec = 0; 1074 timeradd(&tv, &delta, &tv); 1075 rtc_offset = new_rtc_offset; 1076 settime(&tv); 1077 1078 return (0); 1079 } 1080 1081 /* 1082 * sysctl helper routine for kern.maxvnodes. ensures that the new 1083 * values are not too low or too high. 1084 */ 1085 static int 1086 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1087 { 1088 int error, nmaxproc; 1089 struct sysctlnode node; 1090 1091 nmaxproc = maxproc; 1092 node = *rnode; 1093 node.sysctl_data = &nmaxproc; 1094 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1095 if (error || newp == NULL) 1096 return (error); 1097 1098 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1099 return (EINVAL); 1100 #ifdef __HAVE_CPU_MAXPROC 1101 if (nmaxproc > cpu_maxproc()) 1102 return (EINVAL); 1103 #endif 1104 maxproc = nmaxproc; 1105 1106 return (0); 1107 } 1108 1109 /* 1110 * sysctl helper routine for kern.securelevel. ensures that the value 1111 * only rises unless the caller has pid 1 (assumed to be init). 1112 */ 1113 static int 1114 sysctl_kern_securelevel(SYSCTLFN_ARGS) 1115 { 1116 int newsecurelevel, error; 1117 struct sysctlnode node; 1118 1119 newsecurelevel = securelevel; 1120 node = *rnode; 1121 node.sysctl_data = &newsecurelevel; 1122 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1123 if (error || newp == NULL) 1124 return (error); 1125 1126 if (newsecurelevel < securelevel && l && l->l_proc->p_pid != 1) 1127 return (EPERM); 1128 securelevel = newsecurelevel; 1129 1130 return (error); 1131 } 1132 1133 /* 1134 * sysctl helper function for kern.hostid. the hostid is a long, but 1135 * we export it as an int, so we need to give it a little help. 1136 */ 1137 static int 1138 sysctl_kern_hostid(SYSCTLFN_ARGS) 1139 { 1140 int error, inthostid; 1141 struct sysctlnode node; 1142 1143 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1144 node = *rnode; 1145 node.sysctl_data = &inthostid; 1146 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1147 if (error || newp == NULL) 1148 return (error); 1149 1150 hostid = (unsigned)inthostid; 1151 1152 return (0); 1153 } 1154 1155 /* 1156 * sysctl helper function for kern.hostname and kern.domainnname. 1157 * resets the relevant recorded length when the underlying name is 1158 * changed. 1159 */ 1160 static int 1161 sysctl_setlen(SYSCTLFN_ARGS) 1162 { 1163 int error; 1164 1165 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1166 if (error || newp == NULL) 1167 return (error); 1168 1169 switch (rnode->sysctl_num) { 1170 case KERN_HOSTNAME: 1171 hostnamelen = strlen((const char*)rnode->sysctl_data); 1172 break; 1173 case KERN_DOMAINNAME: 1174 domainnamelen = strlen((const char*)rnode->sysctl_data); 1175 break; 1176 } 1177 1178 return (0); 1179 } 1180 1181 /* 1182 * sysctl helper routine for kern.clockrate. assembles a struct on 1183 * the fly to be returned to the caller. 1184 */ 1185 static int 1186 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1187 { 1188 struct clockinfo clkinfo; 1189 struct sysctlnode node; 1190 1191 clkinfo.tick = tick; 1192 clkinfo.tickadj = tickadj; 1193 clkinfo.hz = hz; 1194 clkinfo.profhz = profhz; 1195 clkinfo.stathz = stathz ? stathz : hz; 1196 1197 node = *rnode; 1198 node.sysctl_data = &clkinfo; 1199 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1200 } 1201 1202 1203 /* 1204 * sysctl helper routine for kern.file pseudo-subtree. 1205 */ 1206 static int 1207 sysctl_kern_file(SYSCTLFN_ARGS) 1208 { 1209 int error; 1210 size_t buflen; 1211 struct file *fp; 1212 char *start, *where; 1213 1214 start = where = oldp; 1215 buflen = *oldlenp; 1216 if (where == NULL) { 1217 /* 1218 * overestimate by 10 files 1219 */ 1220 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1221 return (0); 1222 } 1223 1224 /* 1225 * first copyout filehead 1226 */ 1227 if (buflen < sizeof(filehead)) { 1228 *oldlenp = 0; 1229 return (0); 1230 } 1231 error = copyout(&filehead, where, sizeof(filehead)); 1232 if (error) 1233 return (error); 1234 buflen -= sizeof(filehead); 1235 where += sizeof(filehead); 1236 1237 /* 1238 * followed by an array of file structures 1239 */ 1240 LIST_FOREACH(fp, &filehead, f_list) { 1241 if (buflen < sizeof(struct file)) { 1242 *oldlenp = where - start; 1243 return (ENOMEM); 1244 } 1245 error = copyout(fp, where, sizeof(struct file)); 1246 if (error) 1247 return (error); 1248 buflen -= sizeof(struct file); 1249 where += sizeof(struct file); 1250 } 1251 *oldlenp = where - start; 1252 return (0); 1253 } 1254 1255 /* 1256 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1257 * asserts that the assigned value is in the correct range. 1258 */ 1259 static int 1260 sysctl_kern_autonice(SYSCTLFN_ARGS) 1261 { 1262 int error, t = 0; 1263 struct sysctlnode node; 1264 1265 node = *rnode; 1266 t = *(int*)node.sysctl_data; 1267 node.sysctl_data = &t; 1268 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1269 if (error || newp == NULL) 1270 return (error); 1271 1272 switch (node.sysctl_num) { 1273 case KERN_AUTONICETIME: 1274 if (t >= 0) 1275 autonicetime = t; 1276 break; 1277 case KERN_AUTONICEVAL: 1278 if (t < PRIO_MIN) 1279 t = PRIO_MIN; 1280 else if (t > PRIO_MAX) 1281 t = PRIO_MAX; 1282 autoniceval = t; 1283 break; 1284 } 1285 1286 return (0); 1287 } 1288 1289 /* 1290 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1291 * former it merely checks the message buffer is set up. for the latter, 1292 * it also copies out the data if necessary. 1293 */ 1294 static int 1295 sysctl_msgbuf(SYSCTLFN_ARGS) 1296 { 1297 char *where = oldp; 1298 size_t len, maxlen; 1299 long beg, end; 1300 int error; 1301 1302 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1303 msgbufenabled = 0; 1304 return (ENXIO); 1305 } 1306 1307 switch (rnode->sysctl_num) { 1308 case KERN_MSGBUFSIZE: { 1309 struct sysctlnode node = *rnode; 1310 int msg_bufs = (int)msgbufp->msg_bufs; 1311 node.sysctl_data = &msg_bufs; 1312 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1313 } 1314 case KERN_MSGBUF: 1315 break; 1316 default: 1317 return (EOPNOTSUPP); 1318 } 1319 1320 if (newp != NULL) 1321 return (EPERM); 1322 1323 if (oldp == NULL) { 1324 /* always return full buffer size */ 1325 *oldlenp = msgbufp->msg_bufs; 1326 return (0); 1327 } 1328 1329 error = 0; 1330 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1331 1332 /* 1333 * First, copy from the write pointer to the end of 1334 * message buffer. 1335 */ 1336 beg = msgbufp->msg_bufx; 1337 end = msgbufp->msg_bufs; 1338 while (maxlen > 0) { 1339 len = MIN(end - beg, maxlen); 1340 if (len == 0) 1341 break; 1342 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1343 if (error) 1344 break; 1345 where += len; 1346 maxlen -= len; 1347 1348 /* 1349 * ... then, copy from the beginning of message buffer to 1350 * the write pointer. 1351 */ 1352 beg = 0; 1353 end = msgbufp->msg_bufx; 1354 } 1355 1356 return (error); 1357 } 1358 1359 /* 1360 * sysctl helper routine for kern.defcorename. in the case of a new 1361 * string being assigned, check that it's not a zero-length string. 1362 * (XXX the check in -current doesn't work, but do we really care?) 1363 */ 1364 static int 1365 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1366 { 1367 int error; 1368 char newcorename[MAXPATHLEN]; 1369 struct sysctlnode node; 1370 1371 node = *rnode; 1372 node.sysctl_data = &newcorename[0]; 1373 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1374 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1375 if (error || newp == NULL) 1376 return (error); 1377 1378 /* 1379 * when sysctl_lookup() deals with a string, it's guaranteed 1380 * to come back nul terminated. so there. :) 1381 */ 1382 if (strlen(newcorename) == 0) 1383 return (EINVAL); 1384 1385 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1386 1387 return (0); 1388 } 1389 1390 /* 1391 * sysctl helper routine for kern.cp_time node. adds up cpu time 1392 * across all cpus. 1393 */ 1394 static int 1395 sysctl_kern_cptime(SYSCTLFN_ARGS) 1396 { 1397 struct sysctlnode node = *rnode; 1398 1399 #ifndef MULTIPROCESSOR 1400 1401 if (namelen == 1) { 1402 if (name[0] != 0) 1403 return (ENOENT); 1404 /* 1405 * you're allowed to ask for the zero'th processor 1406 */ 1407 name++; 1408 namelen--; 1409 } 1410 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1411 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1412 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1413 1414 #else /* MULTIPROCESSOR */ 1415 1416 u_int64_t *cp_time = NULL; 1417 int error, n = sysctl_ncpus(), i; 1418 struct cpu_info *ci; 1419 CPU_INFO_ITERATOR cii; 1420 1421 /* 1422 * if you specifically pass a buffer that is the size of the 1423 * sum, or if you are probing for the size, you get the "sum" 1424 * of cp_time (and the size thereof) across all processors. 1425 * 1426 * alternately, you can pass an additional mib number and get 1427 * cp_time for that particular processor. 1428 */ 1429 switch (namelen) { 1430 case 0: 1431 if (*oldlenp == sizeof(u_int64_t) * CPUSTATES || oldp == NULL) { 1432 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1433 n = -1; /* SUM */ 1434 } 1435 else { 1436 node.sysctl_size = n * sizeof(u_int64_t) * CPUSTATES; 1437 n = -2; /* ALL */ 1438 } 1439 break; 1440 case 1: 1441 if (name[0] < 0 || name[0] >= n) 1442 return (ENOENT); /* ENOSUCHPROCESSOR */ 1443 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1444 n = name[0]; 1445 /* 1446 * adjust these so that sysctl_lookup() will be happy 1447 */ 1448 name++; 1449 namelen--; 1450 break; 1451 default: 1452 return (EINVAL); 1453 } 1454 1455 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1456 if (cp_time == NULL) 1457 return (ENOMEM); 1458 node.sysctl_data = cp_time; 1459 memset(cp_time, 0, node.sysctl_size); 1460 1461 for (CPU_INFO_FOREACH(cii, ci)) { 1462 if (n <= 0) 1463 for (i = 0; i < CPUSTATES; i++) 1464 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1465 /* 1466 * if a specific processor was requested and we just 1467 * did it, we're done here 1468 */ 1469 if (n == 0) 1470 break; 1471 /* 1472 * if doing "all", skip to next cp_time set for next processor 1473 */ 1474 if (n == -2) 1475 cp_time += CPUSTATES; 1476 /* 1477 * if we're doing a specific processor, we're one 1478 * processor closer 1479 */ 1480 if (n > 0) 1481 n--; 1482 } 1483 1484 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1485 free(node.sysctl_data, M_TEMP); 1486 return (error); 1487 1488 #endif /* MULTIPROCESSOR */ 1489 } 1490 1491 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1492 /* 1493 * sysctl helper routine for kern.sysvipc_info subtree. 1494 */ 1495 1496 #define FILL_PERM(src, dst) do { \ 1497 (dst)._key = (src)._key; \ 1498 (dst).uid = (src).uid; \ 1499 (dst).gid = (src).gid; \ 1500 (dst).cuid = (src).cuid; \ 1501 (dst).cgid = (src).cgid; \ 1502 (dst).mode = (src).mode; \ 1503 (dst)._seq = (src)._seq; \ 1504 } while (/*CONSTCOND*/ 0); 1505 #define FILL_MSG(src, dst) do { \ 1506 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1507 (dst).msg_qnum = (src).msg_qnum; \ 1508 (dst).msg_qbytes = (src).msg_qbytes; \ 1509 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1510 (dst).msg_lspid = (src).msg_lspid; \ 1511 (dst).msg_lrpid = (src).msg_lrpid; \ 1512 (dst).msg_stime = (src).msg_stime; \ 1513 (dst).msg_rtime = (src).msg_rtime; \ 1514 (dst).msg_ctime = (src).msg_ctime; \ 1515 } while (/*CONSTCOND*/ 0) 1516 #define FILL_SEM(src, dst) do { \ 1517 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1518 (dst).sem_nsems = (src).sem_nsems; \ 1519 (dst).sem_otime = (src).sem_otime; \ 1520 (dst).sem_ctime = (src).sem_ctime; \ 1521 } while (/*CONSTCOND*/ 0) 1522 #define FILL_SHM(src, dst) do { \ 1523 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1524 (dst).shm_segsz = (src).shm_segsz; \ 1525 (dst).shm_lpid = (src).shm_lpid; \ 1526 (dst).shm_cpid = (src).shm_cpid; \ 1527 (dst).shm_atime = (src).shm_atime; \ 1528 (dst).shm_dtime = (src).shm_dtime; \ 1529 (dst).shm_ctime = (src).shm_ctime; \ 1530 (dst).shm_nattch = (src).shm_nattch; \ 1531 } while (/*CONSTCOND*/ 0) 1532 1533 static int 1534 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1535 { 1536 void *where = oldp; 1537 size_t *sizep = oldlenp; 1538 #ifdef SYSVMSG 1539 struct msg_sysctl_info *msgsi = NULL; 1540 #endif 1541 #ifdef SYSVSEM 1542 struct sem_sysctl_info *semsi = NULL; 1543 #endif 1544 #ifdef SYSVSHM 1545 struct shm_sysctl_info *shmsi = NULL; 1546 #endif 1547 size_t infosize, dssize, tsize, buflen; 1548 void *bf = NULL; 1549 char *start; 1550 int32_t nds; 1551 int i, error, ret; 1552 1553 if (namelen != 1) 1554 return (EINVAL); 1555 1556 start = where; 1557 buflen = *sizep; 1558 1559 switch (*name) { 1560 case KERN_SYSVIPC_MSG_INFO: 1561 #ifdef SYSVMSG 1562 infosize = sizeof(msgsi->msginfo); 1563 nds = msginfo.msgmni; 1564 dssize = sizeof(msgsi->msgids[0]); 1565 break; 1566 #else 1567 return (EINVAL); 1568 #endif 1569 case KERN_SYSVIPC_SEM_INFO: 1570 #ifdef SYSVSEM 1571 infosize = sizeof(semsi->seminfo); 1572 nds = seminfo.semmni; 1573 dssize = sizeof(semsi->semids[0]); 1574 break; 1575 #else 1576 return (EINVAL); 1577 #endif 1578 case KERN_SYSVIPC_SHM_INFO: 1579 #ifdef SYSVSHM 1580 infosize = sizeof(shmsi->shminfo); 1581 nds = shminfo.shmmni; 1582 dssize = sizeof(shmsi->shmids[0]); 1583 break; 1584 #else 1585 return (EINVAL); 1586 #endif 1587 default: 1588 return (EINVAL); 1589 } 1590 /* 1591 * Round infosize to 64 bit boundary if requesting more than just 1592 * the info structure or getting the total data size. 1593 */ 1594 if (where == NULL || *sizep > infosize) 1595 infosize = ((infosize + 7) / 8) * 8; 1596 tsize = infosize + nds * dssize; 1597 1598 /* Return just the total size required. */ 1599 if (where == NULL) { 1600 *sizep = tsize; 1601 return (0); 1602 } 1603 1604 /* Not enough room for even the info struct. */ 1605 if (buflen < infosize) { 1606 *sizep = 0; 1607 return (ENOMEM); 1608 } 1609 bf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1610 memset(bf, 0, min(tsize, buflen)); 1611 1612 switch (*name) { 1613 #ifdef SYSVMSG 1614 case KERN_SYSVIPC_MSG_INFO: 1615 msgsi = (struct msg_sysctl_info *)bf; 1616 msgsi->msginfo = msginfo; 1617 break; 1618 #endif 1619 #ifdef SYSVSEM 1620 case KERN_SYSVIPC_SEM_INFO: 1621 semsi = (struct sem_sysctl_info *)bf; 1622 semsi->seminfo = seminfo; 1623 break; 1624 #endif 1625 #ifdef SYSVSHM 1626 case KERN_SYSVIPC_SHM_INFO: 1627 shmsi = (struct shm_sysctl_info *)bf; 1628 shmsi->shminfo = shminfo; 1629 break; 1630 #endif 1631 } 1632 buflen -= infosize; 1633 1634 ret = 0; 1635 if (buflen > 0) { 1636 /* Fill in the IPC data structures. */ 1637 for (i = 0; i < nds; i++) { 1638 if (buflen < dssize) { 1639 ret = ENOMEM; 1640 break; 1641 } 1642 switch (*name) { 1643 #ifdef SYSVMSG 1644 case KERN_SYSVIPC_MSG_INFO: 1645 FILL_MSG(msqids[i], msgsi->msgids[i]); 1646 break; 1647 #endif 1648 #ifdef SYSVSEM 1649 case KERN_SYSVIPC_SEM_INFO: 1650 FILL_SEM(sema[i], semsi->semids[i]); 1651 break; 1652 #endif 1653 #ifdef SYSVSHM 1654 case KERN_SYSVIPC_SHM_INFO: 1655 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1656 break; 1657 #endif 1658 } 1659 buflen -= dssize; 1660 } 1661 } 1662 *sizep -= buflen; 1663 error = copyout(bf, start, *sizep); 1664 /* If copyout succeeded, use return code set earlier. */ 1665 if (error == 0) 1666 error = ret; 1667 if (bf) 1668 free(bf, M_TEMP); 1669 return (error); 1670 } 1671 1672 #undef FILL_PERM 1673 #undef FILL_MSG 1674 #undef FILL_SEM 1675 #undef FILL_SHM 1676 1677 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1678 1679 #if NPTY > 0 1680 /* 1681 * sysctl helper routine for kern.maxptys. ensures that any new value 1682 * is acceptable to the pty subsystem. 1683 */ 1684 static int 1685 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1686 { 1687 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1688 int error, xmax; 1689 struct sysctlnode node; 1690 1691 /* get current value of maxptys */ 1692 xmax = pty_maxptys(0, 0); 1693 1694 node = *rnode; 1695 node.sysctl_data = &xmax; 1696 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1697 if (error || newp == NULL) 1698 return (error); 1699 1700 if (xmax != pty_maxptys(xmax, 1)) 1701 return (EINVAL); 1702 1703 return (0); 1704 } 1705 #endif /* NPTY > 0 */ 1706 1707 /* 1708 * sysctl helper routine for kern.sbmax. basically just ensures that 1709 * any new value is not too small. 1710 */ 1711 static int 1712 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1713 { 1714 int error, new_sbmax; 1715 struct sysctlnode node; 1716 1717 new_sbmax = sb_max; 1718 node = *rnode; 1719 node.sysctl_data = &new_sbmax; 1720 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1721 if (error || newp == NULL) 1722 return (error); 1723 1724 error = sb_max_set(new_sbmax); 1725 1726 return (error); 1727 } 1728 1729 /* 1730 * sysctl helper routine for kern.urandom node. picks a random number 1731 * for you. 1732 */ 1733 static int 1734 sysctl_kern_urnd(SYSCTLFN_ARGS) 1735 { 1736 #if NRND > 0 1737 int v; 1738 1739 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1740 struct sysctlnode node = *rnode; 1741 node.sysctl_data = &v; 1742 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1743 } 1744 else 1745 return (EIO); /*XXX*/ 1746 #else 1747 return (EOPNOTSUPP); 1748 #endif 1749 } 1750 1751 /* 1752 * sysctl helper routine to do kern.lwp.* work. 1753 */ 1754 static int 1755 sysctl_kern_lwp(SYSCTLFN_ARGS) 1756 { 1757 struct kinfo_lwp klwp; 1758 struct proc *p; 1759 struct lwp *l2; 1760 char *where, *dp; 1761 int pid, elem_size, elem_count; 1762 int buflen, needed, error; 1763 1764 if (namelen == 1 && name[0] == CTL_QUERY) 1765 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1766 1767 dp = where = oldp; 1768 buflen = where != NULL ? *oldlenp : 0; 1769 error = needed = 0; 1770 1771 if (newp != NULL || namelen != 3) 1772 return (EINVAL); 1773 pid = name[0]; 1774 elem_size = name[1]; 1775 elem_count = name[2]; 1776 1777 p = pfind(pid); 1778 if (p == NULL) 1779 return (ESRCH); 1780 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1781 if (buflen >= elem_size && elem_count > 0) { 1782 fill_lwp(l2, &klwp); 1783 /* 1784 * Copy out elem_size, but not larger than 1785 * the size of a struct kinfo_proc2. 1786 */ 1787 error = copyout(&klwp, dp, 1788 min(sizeof(klwp), elem_size)); 1789 if (error) 1790 goto cleanup; 1791 dp += elem_size; 1792 buflen -= elem_size; 1793 elem_count--; 1794 } 1795 needed += elem_size; 1796 } 1797 1798 if (where != NULL) { 1799 *oldlenp = dp - where; 1800 if (needed > *oldlenp) 1801 return (ENOMEM); 1802 } else { 1803 needed += KERN_LWPSLOP; 1804 *oldlenp = needed; 1805 } 1806 return (0); 1807 cleanup: 1808 return (error); 1809 } 1810 1811 /* 1812 * sysctl helper routine for kern.forkfsleep node. ensures that the 1813 * given value is not too large or two small, and is at least one 1814 * timer tick if not zero. 1815 */ 1816 static int 1817 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1818 { 1819 /* userland sees value in ms, internally is in ticks */ 1820 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1821 int error, timo, lsleep; 1822 struct sysctlnode node; 1823 1824 lsleep = forkfsleep * 1000 / hz; 1825 node = *rnode; 1826 node.sysctl_data = &lsleep; 1827 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1828 if (error || newp == NULL) 1829 return (error); 1830 1831 /* refuse negative values, and overly 'long time' */ 1832 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1833 return (EINVAL); 1834 1835 timo = mstohz(lsleep); 1836 1837 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1838 if (lsleep != 0 && timo == 0) 1839 forkfsleep = 1; 1840 else 1841 forkfsleep = timo; 1842 1843 return (0); 1844 } 1845 1846 /* 1847 * sysctl helper routine for kern.root_partition 1848 */ 1849 static int 1850 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1851 { 1852 int rootpart = DISKPART(rootdev); 1853 struct sysctlnode node = *rnode; 1854 1855 node.sysctl_data = &rootpart; 1856 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1857 } 1858 1859 /* 1860 * sysctl helper function for kern.drivers 1861 */ 1862 static int 1863 sysctl_kern_drivers(SYSCTLFN_ARGS) 1864 { 1865 int error; 1866 size_t buflen; 1867 struct kinfo_drivers kd; 1868 char *start, *where; 1869 const char *dname; 1870 int i; 1871 extern struct devsw_conv *devsw_conv; 1872 extern int max_devsw_convs; 1873 1874 if (newp != NULL || namelen != 0) 1875 return (EINVAL); 1876 1877 start = where = oldp; 1878 buflen = *oldlenp; 1879 if (where == NULL) { 1880 *oldlenp = max_devsw_convs * sizeof kd; 1881 return 0; 1882 } 1883 1884 /* 1885 * An array of kinfo_drivers structures 1886 */ 1887 error = 0; 1888 for (i = 0; i < max_devsw_convs; i++) { 1889 dname = devsw_conv[i].d_name; 1890 if (dname == NULL) 1891 continue; 1892 if (buflen < sizeof kd) { 1893 error = ENOMEM; 1894 break; 1895 } 1896 memset(&kd, 0, sizeof(kd)); 1897 kd.d_bmajor = devsw_conv[i].d_bmajor; 1898 kd.d_cmajor = devsw_conv[i].d_cmajor; 1899 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1900 error = copyout(&kd, where, sizeof kd); 1901 if (error != 0) 1902 break; 1903 buflen -= sizeof kd; 1904 where += sizeof kd; 1905 } 1906 *oldlenp = where - start; 1907 return error; 1908 } 1909 1910 /* 1911 * sysctl helper function for kern.file2 1912 */ 1913 static int 1914 sysctl_kern_file2(SYSCTLFN_ARGS) 1915 { 1916 struct proc *p; 1917 struct file *fp; 1918 struct filedesc *fd; 1919 struct kinfo_file kf; 1920 char *dp; 1921 u_int i, op; 1922 size_t len, needed, elem_size, out_size; 1923 int error, arg, elem_count; 1924 1925 if (namelen == 1 && name[0] == CTL_QUERY) 1926 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1927 1928 if (namelen != 4) 1929 return (EINVAL); 1930 1931 error = 0; 1932 dp = oldp; 1933 len = (oldp != NULL) ? *oldlenp : 0; 1934 op = name[0]; 1935 arg = name[1]; 1936 elem_size = name[2]; 1937 elem_count = name[3]; 1938 out_size = MIN(sizeof(kf), elem_size); 1939 needed = 0; 1940 1941 if (elem_size < 1 || elem_count < 0) 1942 return (EINVAL); 1943 1944 switch (op) { 1945 case KERN_FILE_BYFILE: 1946 /* 1947 * doesn't use arg so it must be zero 1948 */ 1949 if (arg != 0) 1950 return (EINVAL); 1951 LIST_FOREACH(fp, &filehead, f_list) { 1952 if (len >= elem_size && elem_count > 0) { 1953 fill_file(&kf, fp, NULL, 0); 1954 error = copyout(&kf, dp, out_size); 1955 if (error) 1956 break; 1957 dp += elem_size; 1958 len -= elem_size; 1959 } 1960 if (elem_count > 0) { 1961 needed += elem_size; 1962 if (elem_count != INT_MAX) 1963 elem_count--; 1964 } 1965 } 1966 break; 1967 case KERN_FILE_BYPID: 1968 if (arg < -1) 1969 /* -1 means all processes */ 1970 return (EINVAL); 1971 proclist_lock_read(); 1972 PROCLIST_FOREACH(p, &allproc) { 1973 if (p->p_stat == SIDL) 1974 /* skip embryonic processes */ 1975 continue; 1976 if (arg > 0 && p->p_pid != arg) 1977 /* pick only the one we want */ 1978 /* XXX want 0 to mean "kernel files" */ 1979 continue; 1980 fd = p->p_fd; 1981 for (i = 0; i < fd->fd_nfiles; i++) { 1982 fp = fd->fd_ofiles[i]; 1983 if (fp == NULL || !FILE_IS_USABLE(fp)) 1984 continue; 1985 if (len >= elem_size && elem_count > 0) { 1986 fill_file(&kf, fd->fd_ofiles[i], 1987 p, i); 1988 error = copyout(&kf, dp, out_size); 1989 if (error) 1990 break; 1991 dp += elem_size; 1992 len -= elem_size; 1993 } 1994 if (elem_count > 0) { 1995 needed += elem_size; 1996 if (elem_count != INT_MAX) 1997 elem_count--; 1998 } 1999 } 2000 } 2001 proclist_unlock_read(); 2002 break; 2003 default: 2004 return (EINVAL); 2005 } 2006 2007 if (oldp == NULL) 2008 needed += KERN_FILESLOP * elem_size; 2009 *oldlenp = needed; 2010 2011 return (error); 2012 } 2013 2014 static void 2015 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2016 { 2017 2018 memset(kp, 0, sizeof(*kp)); 2019 2020 kp->ki_fileaddr = PTRTOUINT64(fp); 2021 kp->ki_flag = fp->f_flag; 2022 kp->ki_iflags = fp->f_iflags; 2023 kp->ki_ftype = fp->f_type; 2024 kp->ki_count = fp->f_count; 2025 kp->ki_msgcount = fp->f_msgcount; 2026 kp->ki_usecount = fp->f_usecount; 2027 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2028 kp->ki_fuid = fp->f_cred->cr_uid; 2029 kp->ki_fgid = fp->f_cred->cr_gid; 2030 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2031 kp->ki_foffset = fp->f_offset; 2032 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2033 2034 /* vnode information to glue this file to something */ 2035 if (fp->f_type == DTYPE_VNODE) { 2036 struct vnode *vp = (struct vnode *)fp->f_data; 2037 2038 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2039 kp->ki_vsize = vp->v_size; 2040 kp->ki_vtype = vp->v_type; 2041 kp->ki_vtag = vp->v_tag; 2042 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2043 } 2044 2045 /* process information when retrieved via KERN_FILE_BYPID */ 2046 if (p) { 2047 kp->ki_pid = p->p_pid; 2048 kp->ki_fd = i; 2049 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2050 } 2051 } 2052 2053 static int 2054 sysctl_doeproc(SYSCTLFN_ARGS) 2055 { 2056 struct eproc eproc; 2057 struct kinfo_proc2 kproc2; 2058 struct kinfo_proc *dp; 2059 struct proc *p; 2060 const struct proclist_desc *pd; 2061 char *where, *dp2; 2062 int type, op, arg; 2063 u_int elem_size, elem_count; 2064 size_t buflen, needed; 2065 int error; 2066 2067 if (namelen == 1 && name[0] == CTL_QUERY) 2068 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2069 2070 dp = oldp; 2071 dp2 = where = oldp; 2072 buflen = where != NULL ? *oldlenp : 0; 2073 error = 0; 2074 needed = 0; 2075 type = rnode->sysctl_num; 2076 2077 if (type == KERN_PROC) { 2078 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2079 return (EINVAL); 2080 op = name[0]; 2081 if (op != KERN_PROC_ALL) 2082 arg = name[1]; 2083 else 2084 arg = 0; /* Quell compiler warning */ 2085 elem_size = elem_count = 0; /* Ditto */ 2086 } else { 2087 if (namelen != 4) 2088 return (EINVAL); 2089 op = name[0]; 2090 arg = name[1]; 2091 elem_size = name[2]; 2092 elem_count = name[3]; 2093 } 2094 2095 proclist_lock_read(); 2096 2097 pd = proclists; 2098 again: 2099 PROCLIST_FOREACH(p, pd->pd_list) { 2100 /* 2101 * Skip embryonic processes. 2102 */ 2103 if (p->p_stat == SIDL) 2104 continue; 2105 /* 2106 * TODO - make more efficient (see notes below). 2107 * do by session. 2108 */ 2109 switch (op) { 2110 2111 case KERN_PROC_PID: 2112 /* could do this with just a lookup */ 2113 if (p->p_pid != (pid_t)arg) 2114 continue; 2115 break; 2116 2117 case KERN_PROC_PGRP: 2118 /* could do this by traversing pgrp */ 2119 if (p->p_pgrp->pg_id != (pid_t)arg) 2120 continue; 2121 break; 2122 2123 case KERN_PROC_SESSION: 2124 if (p->p_session->s_sid != (pid_t)arg) 2125 continue; 2126 break; 2127 2128 case KERN_PROC_TTY: 2129 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2130 if ((p->p_flag & P_CONTROLT) == 0 || 2131 p->p_session->s_ttyp == NULL || 2132 p->p_session->s_ttyvp != NULL) 2133 continue; 2134 } else if ((p->p_flag & P_CONTROLT) == 0 || 2135 p->p_session->s_ttyp == NULL) { 2136 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2137 continue; 2138 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2139 continue; 2140 break; 2141 2142 case KERN_PROC_UID: 2143 if (p->p_ucred->cr_uid != (uid_t)arg) 2144 continue; 2145 break; 2146 2147 case KERN_PROC_RUID: 2148 if (p->p_cred->p_ruid != (uid_t)arg) 2149 continue; 2150 break; 2151 2152 case KERN_PROC_GID: 2153 if (p->p_ucred->cr_gid != (uid_t)arg) 2154 continue; 2155 break; 2156 2157 case KERN_PROC_RGID: 2158 if (p->p_cred->p_rgid != (uid_t)arg) 2159 continue; 2160 break; 2161 2162 case KERN_PROC_ALL: 2163 /* allow everything */ 2164 break; 2165 2166 default: 2167 error = EINVAL; 2168 goto cleanup; 2169 } 2170 if (type == KERN_PROC) { 2171 if (buflen >= sizeof(struct kinfo_proc)) { 2172 fill_eproc(p, &eproc); 2173 error = copyout(p, &dp->kp_proc, 2174 sizeof(struct proc)); 2175 if (error) 2176 goto cleanup; 2177 error = copyout(&eproc, &dp->kp_eproc, 2178 sizeof(eproc)); 2179 if (error) 2180 goto cleanup; 2181 dp++; 2182 buflen -= sizeof(struct kinfo_proc); 2183 } 2184 needed += sizeof(struct kinfo_proc); 2185 } else { /* KERN_PROC2 */ 2186 if (buflen >= elem_size && elem_count > 0) { 2187 fill_kproc2(p, &kproc2); 2188 /* 2189 * Copy out elem_size, but not larger than 2190 * the size of a struct kinfo_proc2. 2191 */ 2192 error = copyout(&kproc2, dp2, 2193 min(sizeof(kproc2), elem_size)); 2194 if (error) 2195 goto cleanup; 2196 dp2 += elem_size; 2197 buflen -= elem_size; 2198 elem_count--; 2199 } 2200 needed += elem_size; 2201 } 2202 } 2203 pd++; 2204 if (pd->pd_list != NULL) 2205 goto again; 2206 proclist_unlock_read(); 2207 2208 if (where != NULL) { 2209 if (type == KERN_PROC) 2210 *oldlenp = (char *)dp - where; 2211 else 2212 *oldlenp = dp2 - where; 2213 if (needed > *oldlenp) 2214 return (ENOMEM); 2215 } else { 2216 needed += KERN_PROCSLOP; 2217 *oldlenp = needed; 2218 } 2219 return (0); 2220 cleanup: 2221 proclist_unlock_read(); 2222 return (error); 2223 } 2224 2225 /* 2226 * sysctl helper routine for kern.proc_args pseudo-subtree. 2227 */ 2228 static int 2229 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2230 { 2231 struct ps_strings pss; 2232 struct proc *p, *up = l->l_proc; 2233 size_t len, upper_bound, xlen, i; 2234 struct uio auio; 2235 struct iovec aiov; 2236 vaddr_t argv; 2237 pid_t pid; 2238 int nargv, type, error; 2239 char *arg; 2240 char *tmp; 2241 2242 if (namelen == 1 && name[0] == CTL_QUERY) 2243 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2244 2245 if (newp != NULL || namelen != 2) 2246 return (EINVAL); 2247 pid = name[0]; 2248 type = name[1]; 2249 2250 switch (type) { 2251 case KERN_PROC_ARGV: 2252 case KERN_PROC_NARGV: 2253 case KERN_PROC_ENV: 2254 case KERN_PROC_NENV: 2255 /* ok */ 2256 break; 2257 default: 2258 return (EINVAL); 2259 } 2260 2261 /* check pid */ 2262 if ((p = pfind(pid)) == NULL) 2263 return (EINVAL); 2264 2265 /* only root or same user change look at the environment */ 2266 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2267 if (up->p_ucred->cr_uid != 0) { 2268 if (up->p_cred->p_ruid != p->p_cred->p_ruid || 2269 up->p_cred->p_ruid != p->p_cred->p_svuid) 2270 return (EPERM); 2271 } 2272 } 2273 2274 if (oldp == NULL) { 2275 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2276 *oldlenp = sizeof (int); 2277 else 2278 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2279 return (0); 2280 } 2281 2282 /* 2283 * Zombies don't have a stack, so we can't read their psstrings. 2284 * System processes also don't have a user stack. 2285 */ 2286 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) 2287 return (EINVAL); 2288 2289 /* 2290 * Lock the process down in memory. 2291 */ 2292 /* XXXCDC: how should locking work here? */ 2293 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) 2294 return (EFAULT); 2295 2296 p->p_vmspace->vm_refcnt++; /* XXX */ 2297 2298 /* 2299 * Allocate a temporary buffer to hold the arguments. 2300 */ 2301 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2302 2303 /* 2304 * Read in the ps_strings structure. 2305 */ 2306 aiov.iov_base = &pss; 2307 aiov.iov_len = sizeof(pss); 2308 auio.uio_iov = &aiov; 2309 auio.uio_iovcnt = 1; 2310 auio.uio_offset = (vaddr_t)p->p_psstr; 2311 auio.uio_resid = sizeof(pss); 2312 auio.uio_segflg = UIO_SYSSPACE; 2313 auio.uio_rw = UIO_READ; 2314 auio.uio_procp = NULL; 2315 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2316 if (error) 2317 goto done; 2318 2319 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2320 memcpy(&nargv, (char *)&pss + p->p_psnargv, sizeof(nargv)); 2321 else 2322 memcpy(&nargv, (char *)&pss + p->p_psnenv, sizeof(nargv)); 2323 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2324 error = copyout(&nargv, oldp, sizeof(nargv)); 2325 *oldlenp = sizeof(nargv); 2326 goto done; 2327 } 2328 /* 2329 * Now read the address of the argument vector. 2330 */ 2331 switch (type) { 2332 case KERN_PROC_ARGV: 2333 /* XXX compat32 stuff here */ 2334 memcpy(&tmp, (char *)&pss + p->p_psargv, sizeof(tmp)); 2335 break; 2336 case KERN_PROC_ENV: 2337 memcpy(&tmp, (char *)&pss + p->p_psenv, sizeof(tmp)); 2338 break; 2339 default: 2340 return (EINVAL); 2341 } 2342 auio.uio_offset = (off_t)(unsigned long)tmp; 2343 aiov.iov_base = &argv; 2344 aiov.iov_len = sizeof(argv); 2345 auio.uio_iov = &aiov; 2346 auio.uio_iovcnt = 1; 2347 auio.uio_resid = sizeof(argv); 2348 auio.uio_segflg = UIO_SYSSPACE; 2349 auio.uio_rw = UIO_READ; 2350 auio.uio_procp = NULL; 2351 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2352 if (error) 2353 goto done; 2354 2355 /* 2356 * Now copy in the actual argument vector, one page at a time, 2357 * since we don't know how long the vector is (though, we do 2358 * know how many NUL-terminated strings are in the vector). 2359 */ 2360 len = 0; 2361 upper_bound = *oldlenp; 2362 for (; nargv != 0 && len < upper_bound; len += xlen) { 2363 aiov.iov_base = arg; 2364 aiov.iov_len = PAGE_SIZE; 2365 auio.uio_iov = &aiov; 2366 auio.uio_iovcnt = 1; 2367 auio.uio_offset = argv + len; 2368 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2369 auio.uio_resid = xlen; 2370 auio.uio_segflg = UIO_SYSSPACE; 2371 auio.uio_rw = UIO_READ; 2372 auio.uio_procp = NULL; 2373 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2374 if (error) 2375 goto done; 2376 2377 for (i = 0; i < xlen && nargv != 0; i++) { 2378 if (arg[i] == '\0') 2379 nargv--; /* one full string */ 2380 } 2381 2382 /* 2383 * Make sure we don't copyout past the end of the user's 2384 * buffer. 2385 */ 2386 if (len + i > upper_bound) 2387 i = upper_bound - len; 2388 2389 error = copyout(arg, (char *)oldp + len, i); 2390 if (error) 2391 break; 2392 2393 if (nargv == 0) { 2394 len += i; 2395 break; 2396 } 2397 } 2398 *oldlenp = len; 2399 2400 done: 2401 uvmspace_free(p->p_vmspace); 2402 2403 free(arg, M_TEMP); 2404 return (error); 2405 } 2406 2407 /* 2408 * Sysctl helper routine for Verified Exec. 2409 */ 2410 #ifdef VERIFIED_EXEC 2411 static int 2412 sysctl_kern_veriexec(SYSCTLFN_ARGS) 2413 { 2414 int newval, error; 2415 int *var = NULL, raise_only = 0; 2416 struct sysctlnode node; 2417 2418 node = *rnode; 2419 2420 switch (rnode->sysctl_num) { 2421 case VERIEXEC_STRICT: 2422 raise_only = 1; 2423 var = &veriexec_strict; 2424 break; 2425 case VERIEXEC_ALGORITHMS: 2426 node.sysctl_data = veriexec_fp_names; 2427 node.sysctl_size = strlen(veriexec_fp_names) + 1; 2428 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2429 default: 2430 return (EINVAL); 2431 } 2432 2433 newval = *var; 2434 2435 node.sysctl_data = &newval; 2436 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2437 if (error || newp == NULL) { 2438 return (error); 2439 } 2440 2441 if (raise_only && (newval < *var)) 2442 return (EPERM); 2443 2444 *var = newval; 2445 2446 return (error); 2447 } 2448 #endif /* VERIFIED_EXEC */ 2449 2450 /* 2451 * sysctl helper routine for kern.cp_id node. maps cpus to their 2452 * cpuids. 2453 */ 2454 static int 2455 sysctl_kern_cpid(SYSCTLFN_ARGS) 2456 { 2457 struct sysctlnode node = *rnode; 2458 2459 #ifndef MULTIPROCESSOR 2460 u_int64_t id; 2461 2462 if (namelen == 1) { 2463 if (name[0] != 0) 2464 return (ENOENT); 2465 /* 2466 * you're allowed to ask for the zero'th processor 2467 */ 2468 name++; 2469 namelen--; 2470 } 2471 node.sysctl_data = &id; 2472 node.sysctl_size = sizeof(id); 2473 id = cpu_number(); 2474 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2475 2476 #else /* MULTIPROCESSOR */ 2477 u_int64_t *cp_id = NULL; 2478 int error, n = sysctl_ncpus(); 2479 struct cpu_info *ci; 2480 CPU_INFO_ITERATOR cii; 2481 2482 /* 2483 * here you may either retrieve a single cpu id or the whole 2484 * set. the size you get back when probing depends on what 2485 * you ask for. 2486 */ 2487 switch (namelen) { 2488 case 0: 2489 node.sysctl_size = n * sizeof(u_int64_t); 2490 n = -2; /* ALL */ 2491 break; 2492 case 1: 2493 if (name[0] < 0 || name[0] >= n) 2494 return (ENOENT); /* ENOSUCHPROCESSOR */ 2495 node.sysctl_size = sizeof(u_int64_t); 2496 n = name[0]; 2497 /* 2498 * adjust these so that sysctl_lookup() will be happy 2499 */ 2500 name++; 2501 namelen--; 2502 break; 2503 default: 2504 return (EINVAL); 2505 } 2506 2507 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2508 if (cp_id == NULL) 2509 return (ENOMEM); 2510 node.sysctl_data = cp_id; 2511 memset(cp_id, 0, node.sysctl_size); 2512 2513 for (CPU_INFO_FOREACH(cii, ci)) { 2514 if (n <= 0) 2515 cp_id[0] = ci->ci_cpuid; 2516 /* 2517 * if a specific processor was requested and we just 2518 * did it, we're done here 2519 */ 2520 if (n == 0) 2521 break; 2522 /* 2523 * if doing "all", skip to next cp_id slot for next processor 2524 */ 2525 if (n == -2) 2526 cp_id++; 2527 /* 2528 * if we're doing a specific processor, we're one 2529 * processor closer 2530 */ 2531 if (n > 0) 2532 n--; 2533 } 2534 2535 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2536 free(node.sysctl_data, M_TEMP); 2537 return (error); 2538 2539 #endif /* MULTIPROCESSOR */ 2540 } 2541 2542 /* 2543 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2544 * calculate on the fly taking into account integer overflow and the 2545 * current wired count. 2546 */ 2547 static int 2548 sysctl_hw_usermem(SYSCTLFN_ARGS) 2549 { 2550 u_int ui; 2551 u_quad_t uq; 2552 struct sysctlnode node; 2553 2554 node = *rnode; 2555 switch (rnode->sysctl_num) { 2556 case HW_USERMEM: 2557 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2558 ui = UINT_MAX; 2559 else 2560 ui *= PAGE_SIZE; 2561 node.sysctl_data = &ui; 2562 break; 2563 case HW_USERMEM64: 2564 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2565 node.sysctl_data = &uq; 2566 break; 2567 default: 2568 return (EINVAL); 2569 } 2570 2571 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2572 } 2573 2574 /* 2575 * sysctl helper routine for kern.cnmagic node. pulls the old value 2576 * out, encoded, and stuffs the new value in for decoding. 2577 */ 2578 static int 2579 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2580 { 2581 char magic[CNS_LEN]; 2582 int error; 2583 struct sysctlnode node; 2584 2585 if (oldp) 2586 cn_get_magic(magic, CNS_LEN); 2587 node = *rnode; 2588 node.sysctl_data = &magic[0]; 2589 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2590 if (error || newp == NULL) 2591 return (error); 2592 2593 return (cn_set_magic(magic)); 2594 } 2595 2596 static int 2597 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2598 { 2599 int ncpu; 2600 struct sysctlnode node; 2601 2602 ncpu = sysctl_ncpus(); 2603 node = *rnode; 2604 node.sysctl_data = &ncpu; 2605 2606 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2607 } 2608 2609 2610 /* 2611 * ******************************************************************** 2612 * section 3: public helper routines that are used for more than one 2613 * node 2614 * ******************************************************************** 2615 */ 2616 2617 /* 2618 * sysctl helper routine for the kern.root_device node and some ports' 2619 * machdep.root_device nodes. 2620 */ 2621 int 2622 sysctl_root_device(SYSCTLFN_ARGS) 2623 { 2624 struct sysctlnode node; 2625 2626 node = *rnode; 2627 node.sysctl_data = root_device->dv_xname; 2628 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2629 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2630 } 2631 2632 /* 2633 * sysctl helper routine for kern.consdev, dependent on the current 2634 * state of the console. also used for machdep.console_device on some 2635 * ports. 2636 */ 2637 int 2638 sysctl_consdev(SYSCTLFN_ARGS) 2639 { 2640 dev_t consdev; 2641 struct sysctlnode node; 2642 2643 if (cn_tab != NULL) 2644 consdev = cn_tab->cn_dev; 2645 else 2646 consdev = NODEV; 2647 node = *rnode; 2648 node.sysctl_data = &consdev; 2649 node.sysctl_size = sizeof(consdev); 2650 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2651 } 2652 2653 /* 2654 * ******************************************************************** 2655 * section 4: support for some helpers 2656 * ******************************************************************** 2657 */ 2658 2659 /* 2660 * Fill in a kinfo_proc2 structure for the specified process. 2661 */ 2662 static void 2663 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2664 { 2665 struct tty *tp; 2666 struct lwp *l; 2667 struct timeval ut, st; 2668 2669 memset(ki, 0, sizeof(*ki)); 2670 2671 ki->p_paddr = PTRTOUINT64(p); 2672 ki->p_fd = PTRTOUINT64(p->p_fd); 2673 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2674 ki->p_stats = PTRTOUINT64(p->p_stats); 2675 ki->p_limit = PTRTOUINT64(p->p_limit); 2676 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2677 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2678 ki->p_sess = PTRTOUINT64(p->p_session); 2679 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2680 ki->p_ru = PTRTOUINT64(p->p_ru); 2681 2682 ki->p_eflag = 0; 2683 ki->p_exitsig = p->p_exitsig; 2684 ki->p_flag = p->p_flag; 2685 2686 ki->p_pid = p->p_pid; 2687 if (p->p_pptr) 2688 ki->p_ppid = p->p_pptr->p_pid; 2689 else 2690 ki->p_ppid = 0; 2691 ki->p_sid = p->p_session->s_sid; 2692 ki->p__pgid = p->p_pgrp->pg_id; 2693 2694 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2695 2696 ki->p_uid = p->p_ucred->cr_uid; 2697 ki->p_ruid = p->p_cred->p_ruid; 2698 ki->p_gid = p->p_ucred->cr_gid; 2699 ki->p_rgid = p->p_cred->p_rgid; 2700 ki->p_svuid = p->p_cred->p_svuid; 2701 ki->p_svgid = p->p_cred->p_svgid; 2702 2703 memcpy(ki->p_groups, p->p_cred->pc_ucred->cr_groups, 2704 min(sizeof(ki->p_groups), sizeof(p->p_cred->pc_ucred->cr_groups))); 2705 ki->p_ngroups = p->p_cred->pc_ucred->cr_ngroups; 2706 2707 ki->p_jobc = p->p_pgrp->pg_jobc; 2708 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2709 ki->p_tdev = tp->t_dev; 2710 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2711 ki->p_tsess = PTRTOUINT64(tp->t_session); 2712 } else { 2713 ki->p_tdev = NODEV; 2714 } 2715 2716 ki->p_estcpu = p->p_estcpu; 2717 ki->p_rtime_sec = p->p_rtime.tv_sec; 2718 ki->p_rtime_usec = p->p_rtime.tv_usec; 2719 ki->p_cpticks = p->p_cpticks; 2720 ki->p_pctcpu = p->p_pctcpu; 2721 2722 ki->p_uticks = p->p_uticks; 2723 ki->p_sticks = p->p_sticks; 2724 ki->p_iticks = p->p_iticks; 2725 2726 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2727 ki->p_traceflag = p->p_traceflag; 2728 2729 2730 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2731 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2732 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2733 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2734 2735 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2736 ki->p_realstat = p->p_stat; 2737 ki->p_nice = p->p_nice; 2738 2739 ki->p_xstat = p->p_xstat; 2740 ki->p_acflag = p->p_acflag; 2741 2742 strncpy(ki->p_comm, p->p_comm, 2743 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2744 2745 strncpy(ki->p_login, p->p_session->s_login, 2746 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2747 2748 ki->p_nlwps = p->p_nlwps; 2749 ki->p_nrlwps = p->p_nrlwps; 2750 ki->p_realflag = p->p_flag; 2751 2752 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2753 ki->p_vm_rssize = 0; 2754 ki->p_vm_tsize = 0; 2755 ki->p_vm_dsize = 0; 2756 ki->p_vm_ssize = 0; 2757 l = NULL; 2758 } else { 2759 struct vmspace *vm = p->p_vmspace; 2760 2761 ki->p_vm_rssize = vm_resident_count(vm); 2762 ki->p_vm_tsize = vm->vm_tsize; 2763 ki->p_vm_dsize = vm->vm_dsize; 2764 ki->p_vm_ssize = vm->vm_ssize; 2765 2766 /* Pick a "representative" LWP */ 2767 l = proc_representative_lwp(p); 2768 ki->p_forw = PTRTOUINT64(l->l_forw); 2769 ki->p_back = PTRTOUINT64(l->l_back); 2770 ki->p_addr = PTRTOUINT64(l->l_addr); 2771 ki->p_stat = l->l_stat; 2772 ki->p_flag |= l->l_flag; 2773 ki->p_swtime = l->l_swtime; 2774 ki->p_slptime = l->l_slptime; 2775 if (l->l_stat == LSONPROC) { 2776 KDASSERT(l->l_cpu != NULL); 2777 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2778 } else 2779 ki->p_schedflags = 0; 2780 ki->p_holdcnt = l->l_holdcnt; 2781 ki->p_priority = l->l_priority; 2782 ki->p_usrpri = l->l_usrpri; 2783 if (l->l_wmesg) 2784 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2785 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2786 2787 } 2788 2789 if (p->p_session->s_ttyvp) 2790 ki->p_eflag |= EPROC_CTTY; 2791 if (SESS_LEADER(p)) 2792 ki->p_eflag |= EPROC_SLEADER; 2793 2794 /* XXX Is this double check necessary? */ 2795 if (P_ZOMBIE(p)) { 2796 ki->p_uvalid = 0; 2797 } else { 2798 ki->p_uvalid = 1; 2799 2800 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2801 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2802 2803 calcru(p, &ut, &st, 0); 2804 ki->p_uutime_sec = ut.tv_sec; 2805 ki->p_uutime_usec = ut.tv_usec; 2806 ki->p_ustime_sec = st.tv_sec; 2807 ki->p_ustime_usec = st.tv_usec; 2808 2809 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2810 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2811 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2812 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2813 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2814 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2815 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2816 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2817 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2818 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2819 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2820 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2821 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 2822 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 2823 2824 timeradd(&p->p_stats->p_cru.ru_utime, 2825 &p->p_stats->p_cru.ru_stime, &ut); 2826 ki->p_uctime_sec = ut.tv_sec; 2827 ki->p_uctime_usec = ut.tv_usec; 2828 } 2829 #ifdef MULTIPROCESSOR 2830 if (l && l->l_cpu != NULL) 2831 ki->p_cpuid = l->l_cpu->ci_cpuid; 2832 else 2833 #endif 2834 ki->p_cpuid = KI_NOCPU; 2835 } 2836 2837 /* 2838 * Fill in a kinfo_lwp structure for the specified lwp. 2839 */ 2840 static void 2841 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2842 { 2843 2844 kl->l_forw = PTRTOUINT64(l->l_forw); 2845 kl->l_back = PTRTOUINT64(l->l_back); 2846 kl->l_laddr = PTRTOUINT64(l); 2847 kl->l_addr = PTRTOUINT64(l->l_addr); 2848 kl->l_stat = l->l_stat; 2849 kl->l_lid = l->l_lid; 2850 kl->l_flag = l->l_flag; 2851 2852 kl->l_swtime = l->l_swtime; 2853 kl->l_slptime = l->l_slptime; 2854 if (l->l_stat == LSONPROC) { 2855 KDASSERT(l->l_cpu != NULL); 2856 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2857 } else 2858 kl->l_schedflags = 0; 2859 kl->l_holdcnt = l->l_holdcnt; 2860 kl->l_priority = l->l_priority; 2861 kl->l_usrpri = l->l_usrpri; 2862 if (l->l_wmesg) 2863 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2864 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2865 #ifdef MULTIPROCESSOR 2866 if (l->l_cpu != NULL) 2867 kl->l_cpuid = l->l_cpu->ci_cpuid; 2868 else 2869 #endif 2870 kl->l_cpuid = KI_NOCPU; 2871 } 2872 2873 /* 2874 * Fill in an eproc structure for the specified process. 2875 */ 2876 void 2877 fill_eproc(struct proc *p, struct eproc *ep) 2878 { 2879 struct tty *tp; 2880 struct lwp *l; 2881 2882 ep->e_paddr = p; 2883 ep->e_sess = p->p_session; 2884 ep->e_pcred = *p->p_cred; 2885 ep->e_ucred = *p->p_ucred; 2886 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2887 ep->e_vm.vm_rssize = 0; 2888 ep->e_vm.vm_tsize = 0; 2889 ep->e_vm.vm_dsize = 0; 2890 ep->e_vm.vm_ssize = 0; 2891 /* ep->e_vm.vm_pmap = XXX; */ 2892 } else { 2893 struct vmspace *vm = p->p_vmspace; 2894 2895 ep->e_vm.vm_rssize = vm_resident_count(vm); 2896 ep->e_vm.vm_tsize = vm->vm_tsize; 2897 ep->e_vm.vm_dsize = vm->vm_dsize; 2898 ep->e_vm.vm_ssize = vm->vm_ssize; 2899 2900 /* Pick a "representative" LWP */ 2901 l = proc_representative_lwp(p); 2902 2903 if (l->l_wmesg) 2904 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2905 } 2906 if (p->p_pptr) 2907 ep->e_ppid = p->p_pptr->p_pid; 2908 else 2909 ep->e_ppid = 0; 2910 ep->e_pgid = p->p_pgrp->pg_id; 2911 ep->e_sid = ep->e_sess->s_sid; 2912 ep->e_jobc = p->p_pgrp->pg_jobc; 2913 if ((p->p_flag & P_CONTROLT) && 2914 (tp = ep->e_sess->s_ttyp)) { 2915 ep->e_tdev = tp->t_dev; 2916 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2917 ep->e_tsess = tp->t_session; 2918 } else 2919 ep->e_tdev = NODEV; 2920 2921 ep->e_xsize = ep->e_xrssize = 0; 2922 ep->e_xccount = ep->e_xswrss = 0; 2923 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2924 if (SESS_LEADER(p)) 2925 ep->e_flag |= EPROC_SLEADER; 2926 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2927 } 2928