1 /* $NetBSD: init_sysctl.c,v 1.46 2005/06/17 23:53:21 atatat 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 1.46 2005/06/17 23:53:21 atatat Exp $"); 41 42 #include "opt_sysv.h" 43 #include "opt_multiprocessor.h" 44 #include "opt_posix.h" 45 #include "pty.h" 46 #include "rnd.h" 47 48 #include <sys/types.h> 49 #include <sys/param.h> 50 #include <sys/sysctl.h> 51 #include <sys/errno.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 #include <sys/unistd.h> 55 #include <sys/disklabel.h> 56 #include <sys/rnd.h> 57 #include <sys/vnode.h> 58 #include <sys/mount.h> 59 #include <sys/namei.h> 60 #include <sys/msgbuf.h> 61 #include <dev/cons.h> 62 #include <sys/socketvar.h> 63 #include <sys/file.h> 64 #include <sys/filedesc.h> 65 #include <sys/tty.h> 66 #include <sys/malloc.h> 67 #include <sys/resource.h> 68 #include <sys/resourcevar.h> 69 #include <sys/exec.h> 70 #include <sys/conf.h> 71 #include <sys/device.h> 72 #define VERIEXEC_NEED_NODE 73 #include <sys/verified_exec.h> 74 75 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 76 #include <sys/ipc.h> 77 #endif 78 #ifdef SYSVMSG 79 #include <sys/msg.h> 80 #endif 81 #ifdef SYSVSEM 82 #include <sys/sem.h> 83 #endif 84 #ifdef SYSVSHM 85 #include <sys/shm.h> 86 #endif 87 88 #include <machine/cpu.h> 89 90 /* 91 * try over estimating by 5 procs/lwps 92 */ 93 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 94 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 95 96 #ifndef MULTIPROCESSOR 97 #define sysctl_ncpus() (1) 98 #else /* MULTIPROCESSOR */ 99 #ifndef CPU_INFO_FOREACH 100 #define CPU_INFO_ITERATOR int 101 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 102 #endif 103 static int 104 sysctl_ncpus(void) 105 { 106 struct cpu_info *ci; 107 CPU_INFO_ITERATOR cii; 108 109 int ncpus = 0; 110 for (CPU_INFO_FOREACH(cii, ci)) 111 ncpus++; 112 return (ncpus); 113 } 114 #endif /* MULTIPROCESSOR */ 115 116 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 117 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 118 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 119 static int sysctl_kern_securelevel(SYSCTLFN_PROTO); 120 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 121 static int sysctl_setlen(SYSCTLFN_PROTO); 122 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 123 static int sysctl_kern_file(SYSCTLFN_PROTO); 124 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 125 static int sysctl_msgbuf(SYSCTLFN_PROTO); 126 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 127 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 128 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 129 static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 130 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 131 #if NPTY > 0 132 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 133 #endif /* NPTY > 0 */ 134 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 135 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 136 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 137 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 138 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 139 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 140 static int sysctl_kern_file2(SYSCTLFN_PROTO); 141 #ifdef VERIFIED_EXEC 142 static int sysctl_kern_veriexec(SYSCTLFN_PROTO); 143 #endif 144 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 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 POSIX 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 sysctl_createv(clog, 0, NULL, NULL, 771 CTLFLAG_PERMANENT, 772 CTLTYPE_STRUCT, "cp_id", 773 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 774 sysctl_kern_cpid, 0, NULL, 0, 775 CTL_KERN, KERN_CP_ID, CTL_EOL); 776 } 777 778 SYSCTL_SETUP(sysctl_kern_proc_setup, 779 "sysctl kern.proc/proc2/proc_args subtree setup") 780 { 781 782 sysctl_createv(clog, 0, NULL, NULL, 783 CTLFLAG_PERMANENT, 784 CTLTYPE_NODE, "kern", NULL, 785 NULL, 0, NULL, 0, 786 CTL_KERN, CTL_EOL); 787 788 sysctl_createv(clog, 0, NULL, NULL, 789 CTLFLAG_PERMANENT, 790 CTLTYPE_NODE, "proc", 791 SYSCTL_DESCR("System-wide process information"), 792 sysctl_doeproc, 0, NULL, 0, 793 CTL_KERN, KERN_PROC, CTL_EOL); 794 sysctl_createv(clog, 0, NULL, NULL, 795 CTLFLAG_PERMANENT, 796 CTLTYPE_NODE, "proc2", 797 SYSCTL_DESCR("Machine-independent process information"), 798 sysctl_doeproc, 0, NULL, 0, 799 CTL_KERN, KERN_PROC2, CTL_EOL); 800 sysctl_createv(clog, 0, NULL, NULL, 801 CTLFLAG_PERMANENT, 802 CTLTYPE_NODE, "proc_args", 803 SYSCTL_DESCR("Process argument information"), 804 sysctl_kern_proc_args, 0, NULL, 0, 805 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 806 807 /* 808 "nodes" under these: 809 810 KERN_PROC_ALL 811 KERN_PROC_PID pid 812 KERN_PROC_PGRP pgrp 813 KERN_PROC_SESSION sess 814 KERN_PROC_TTY tty 815 KERN_PROC_UID uid 816 KERN_PROC_RUID uid 817 KERN_PROC_GID gid 818 KERN_PROC_RGID gid 819 820 all in all, probably not worth the effort... 821 */ 822 } 823 824 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 825 { 826 u_int u; 827 u_quad_t q; 828 829 sysctl_createv(clog, 0, NULL, NULL, 830 CTLFLAG_PERMANENT, 831 CTLTYPE_NODE, "hw", NULL, 832 NULL, 0, NULL, 0, 833 CTL_HW, CTL_EOL); 834 835 sysctl_createv(clog, 0, NULL, NULL, 836 CTLFLAG_PERMANENT, 837 CTLTYPE_STRING, "machine", 838 SYSCTL_DESCR("Machine class"), 839 NULL, 0, machine, 0, 840 CTL_HW, HW_MACHINE, CTL_EOL); 841 sysctl_createv(clog, 0, NULL, NULL, 842 CTLFLAG_PERMANENT, 843 CTLTYPE_STRING, "model", 844 SYSCTL_DESCR("Machine model"), 845 NULL, 0, cpu_model, 0, 846 CTL_HW, HW_MODEL, CTL_EOL); 847 sysctl_createv(clog, 0, NULL, NULL, 848 CTLFLAG_PERMANENT, 849 CTLTYPE_INT, "ncpu", 850 SYSCTL_DESCR("Number of active CPUs"), 851 sysctl_hw_ncpu, 0, NULL, 0, 852 CTL_HW, HW_NCPU, CTL_EOL); 853 sysctl_createv(clog, 0, NULL, NULL, 854 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 855 CTLTYPE_INT, "byteorder", 856 SYSCTL_DESCR("System byte order"), 857 NULL, BYTE_ORDER, NULL, 0, 858 CTL_HW, HW_BYTEORDER, CTL_EOL); 859 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 860 UINT_MAX : physmem * PAGE_SIZE; 861 sysctl_createv(clog, 0, NULL, NULL, 862 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 863 CTLTYPE_INT, "physmem", 864 SYSCTL_DESCR("Bytes of physical memory"), 865 NULL, u, NULL, 0, 866 CTL_HW, HW_PHYSMEM, CTL_EOL); 867 sysctl_createv(clog, 0, NULL, NULL, 868 CTLFLAG_PERMANENT, 869 CTLTYPE_INT, "usermem", 870 SYSCTL_DESCR("Bytes of non-kernel memory"), 871 sysctl_hw_usermem, 0, NULL, 0, 872 CTL_HW, HW_USERMEM, CTL_EOL); 873 sysctl_createv(clog, 0, NULL, NULL, 874 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 875 CTLTYPE_INT, "pagesize", 876 SYSCTL_DESCR("Software page size"), 877 NULL, PAGE_SIZE, NULL, 0, 878 CTL_HW, HW_PAGESIZE, CTL_EOL); 879 sysctl_createv(clog, 0, NULL, NULL, 880 CTLFLAG_PERMANENT, 881 CTLTYPE_STRING, "disknames", 882 SYSCTL_DESCR("List of disk devices present"), 883 sysctl_hw_disknames, 0, NULL, 0, 884 CTL_HW, HW_DISKNAMES, CTL_EOL); 885 sysctl_createv(clog, 0, NULL, NULL, 886 CTLFLAG_PERMANENT, 887 CTLTYPE_STRUCT, "diskstats", 888 SYSCTL_DESCR("Statistics on disk operation"), 889 sysctl_hw_diskstats, 0, NULL, 0, 890 CTL_HW, HW_DISKSTATS, CTL_EOL); 891 sysctl_createv(clog, 0, NULL, NULL, 892 CTLFLAG_PERMANENT, 893 CTLTYPE_STRING, "machine_arch", 894 SYSCTL_DESCR("Machine CPU class"), 895 NULL, 0, machine_arch, 0, 896 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 897 sysctl_createv(clog, 0, NULL, NULL, 898 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 899 CTLTYPE_INT, "alignbytes", 900 SYSCTL_DESCR("Alignment constraint for all possible " 901 "data types"), 902 NULL, ALIGNBYTES, NULL, 0, 903 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 904 sysctl_createv(clog, 0, NULL, NULL, 905 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 906 CTLTYPE_STRING, "cnmagic", 907 SYSCTL_DESCR("Console magic key sequence"), 908 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 909 CTL_HW, HW_CNMAGIC, CTL_EOL); 910 q = (u_quad_t)physmem * PAGE_SIZE; 911 sysctl_createv(clog, 0, NULL, NULL, 912 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 913 CTLTYPE_QUAD, "physmem64", 914 SYSCTL_DESCR("Bytes of physical memory"), 915 NULL, q, NULL, 0, 916 CTL_HW, HW_PHYSMEM64, CTL_EOL); 917 sysctl_createv(clog, 0, NULL, NULL, 918 CTLFLAG_PERMANENT, 919 CTLTYPE_QUAD, "usermem64", 920 SYSCTL_DESCR("Bytes of non-kernel memory"), 921 sysctl_hw_usermem, 0, NULL, 0, 922 CTL_HW, HW_USERMEM64, CTL_EOL); 923 } 924 925 #ifdef DEBUG 926 /* 927 * Debugging related system variables. 928 */ 929 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 930 struct ctldebug debug5, debug6, debug7, debug8, debug9; 931 struct ctldebug debug10, debug11, debug12, debug13, debug14; 932 struct ctldebug debug15, debug16, debug17, debug18, debug19; 933 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 934 &debug0, &debug1, &debug2, &debug3, &debug4, 935 &debug5, &debug6, &debug7, &debug8, &debug9, 936 &debug10, &debug11, &debug12, &debug13, &debug14, 937 &debug15, &debug16, &debug17, &debug18, &debug19, 938 }; 939 940 /* 941 * this setup routine is a replacement for debug_sysctl() 942 * 943 * note that it creates several nodes per defined debug variable 944 */ 945 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 946 { 947 struct ctldebug *cdp; 948 char nodename[20]; 949 int i; 950 951 /* 952 * two ways here: 953 * 954 * the "old" way (debug.name -> value) which was emulated by 955 * the sysctl(8) binary 956 * 957 * the new way, which the sysctl(8) binary was actually using 958 959 node debug 960 node debug.0 961 string debug.0.name 962 int debug.0.value 963 int debug.name 964 965 */ 966 967 sysctl_createv(clog, 0, NULL, NULL, 968 CTLFLAG_PERMANENT, 969 CTLTYPE_NODE, "debug", NULL, 970 NULL, 0, NULL, 0, 971 CTL_DEBUG, CTL_EOL); 972 973 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 974 cdp = debugvars[i]; 975 if (cdp->debugname == NULL || cdp->debugvar == NULL) 976 continue; 977 978 snprintf(nodename, sizeof(nodename), "debug%d", i); 979 sysctl_createv(clog, 0, NULL, NULL, 980 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 981 CTLTYPE_NODE, nodename, NULL, 982 NULL, 0, NULL, 0, 983 CTL_DEBUG, i, CTL_EOL); 984 sysctl_createv(clog, 0, NULL, NULL, 985 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 986 CTLTYPE_STRING, "name", NULL, 987 /*XXXUNCONST*/ 988 NULL, 0, __UNCONST(cdp->debugname), 0, 989 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 990 sysctl_createv(clog, 0, NULL, NULL, 991 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 992 CTLTYPE_INT, "value", NULL, 993 NULL, 0, cdp->debugvar, 0, 994 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 995 sysctl_createv(clog, 0, NULL, NULL, 996 CTLFLAG_PERMANENT, 997 CTLTYPE_INT, cdp->debugname, NULL, 998 NULL, 0, cdp->debugvar, 0, 999 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1000 } 1001 } 1002 #endif /* DEBUG */ 1003 1004 /* 1005 * ******************************************************************** 1006 * section 2: private node-specific helper routines. 1007 * ******************************************************************** 1008 */ 1009 1010 /* 1011 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1012 * new value is lower than desiredvnodes and then calls reinit 1013 * routines that needs to adjust to the new value. 1014 */ 1015 static int 1016 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1017 { 1018 int error, new_vnodes, old_vnodes; 1019 struct sysctlnode node; 1020 1021 new_vnodes = desiredvnodes; 1022 node = *rnode; 1023 node.sysctl_data = &new_vnodes; 1024 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1025 if (error || newp == NULL) 1026 return (error); 1027 1028 old_vnodes = desiredvnodes; 1029 desiredvnodes = new_vnodes; 1030 if (new_vnodes < old_vnodes) { 1031 error = vfs_drainvnodes(new_vnodes, l->l_proc); 1032 if (error) { 1033 desiredvnodes = old_vnodes; 1034 return (error); 1035 } 1036 } 1037 vfs_reinit(); 1038 nchreinit(); 1039 1040 return (0); 1041 } 1042 1043 /* 1044 * sysctl helper routine for rtc_offset - set time after changes 1045 */ 1046 static int 1047 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1048 { 1049 struct timeval tv, delta; 1050 int s, error, new_rtc_offset; 1051 struct sysctlnode node; 1052 1053 new_rtc_offset = rtc_offset; 1054 node = *rnode; 1055 node.sysctl_data = &new_rtc_offset; 1056 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1057 if (error || newp == NULL) 1058 return (error); 1059 1060 if (securelevel > 0) 1061 return (EPERM); 1062 if (rtc_offset == new_rtc_offset) 1063 return (0); 1064 1065 /* if we change the offset, adjust the time */ 1066 s = splclock(); 1067 tv = time; 1068 splx(s); 1069 delta.tv_sec = 60*(new_rtc_offset - rtc_offset); 1070 delta.tv_usec = 0; 1071 timeradd(&tv, &delta, &tv); 1072 rtc_offset = new_rtc_offset; 1073 settime(&tv); 1074 1075 return (0); 1076 } 1077 1078 /* 1079 * sysctl helper routine for kern.maxvnodes. ensures that the new 1080 * values are not too low or too high. 1081 */ 1082 static int 1083 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1084 { 1085 int error, nmaxproc; 1086 struct sysctlnode node; 1087 1088 nmaxproc = maxproc; 1089 node = *rnode; 1090 node.sysctl_data = &nmaxproc; 1091 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1092 if (error || newp == NULL) 1093 return (error); 1094 1095 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1096 return (EINVAL); 1097 #ifdef __HAVE_CPU_MAXPROC 1098 if (nmaxproc > cpu_maxproc()) 1099 return (EINVAL); 1100 #endif 1101 maxproc = nmaxproc; 1102 1103 return (0); 1104 } 1105 1106 /* 1107 * sysctl helper routine for kern.securelevel. ensures that the value 1108 * only rises unless the caller has pid 1 (assumed to be init). 1109 */ 1110 static int 1111 sysctl_kern_securelevel(SYSCTLFN_ARGS) 1112 { 1113 int newsecurelevel, error; 1114 struct sysctlnode node; 1115 1116 newsecurelevel = securelevel; 1117 node = *rnode; 1118 node.sysctl_data = &newsecurelevel; 1119 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1120 if (error || newp == NULL) 1121 return (error); 1122 1123 if (newsecurelevel < securelevel && l && l->l_proc->p_pid != 1) 1124 return (EPERM); 1125 securelevel = newsecurelevel; 1126 1127 return (error); 1128 } 1129 1130 /* 1131 * sysctl helper function for kern.hostid. the hostid is a long, but 1132 * we export it as an int, so we need to give it a little help. 1133 */ 1134 static int 1135 sysctl_kern_hostid(SYSCTLFN_ARGS) 1136 { 1137 int error, inthostid; 1138 struct sysctlnode node; 1139 1140 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1141 node = *rnode; 1142 node.sysctl_data = &inthostid; 1143 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1144 if (error || newp == NULL) 1145 return (error); 1146 1147 hostid = (unsigned)inthostid; 1148 1149 return (0); 1150 } 1151 1152 /* 1153 * sysctl helper function for kern.hostname and kern.domainnname. 1154 * resets the relevant recorded length when the underlying name is 1155 * changed. 1156 */ 1157 static int 1158 sysctl_setlen(SYSCTLFN_ARGS) 1159 { 1160 int error; 1161 1162 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1163 if (error || newp == NULL) 1164 return (error); 1165 1166 switch (rnode->sysctl_num) { 1167 case KERN_HOSTNAME: 1168 hostnamelen = strlen((const char*)rnode->sysctl_data); 1169 break; 1170 case KERN_DOMAINNAME: 1171 domainnamelen = strlen((const char*)rnode->sysctl_data); 1172 break; 1173 } 1174 1175 return (0); 1176 } 1177 1178 /* 1179 * sysctl helper routine for kern.clockrate. assembles a struct on 1180 * the fly to be returned to the caller. 1181 */ 1182 static int 1183 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1184 { 1185 struct clockinfo clkinfo; 1186 struct sysctlnode node; 1187 1188 clkinfo.tick = tick; 1189 clkinfo.tickadj = tickadj; 1190 clkinfo.hz = hz; 1191 clkinfo.profhz = profhz; 1192 clkinfo.stathz = stathz ? stathz : hz; 1193 1194 node = *rnode; 1195 node.sysctl_data = &clkinfo; 1196 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1197 } 1198 1199 1200 /* 1201 * sysctl helper routine for kern.file pseudo-subtree. 1202 */ 1203 static int 1204 sysctl_kern_file(SYSCTLFN_ARGS) 1205 { 1206 int error; 1207 size_t buflen; 1208 struct file *fp; 1209 char *start, *where; 1210 1211 start = where = oldp; 1212 buflen = *oldlenp; 1213 if (where == NULL) { 1214 /* 1215 * overestimate by 10 files 1216 */ 1217 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1218 return (0); 1219 } 1220 1221 /* 1222 * first copyout filehead 1223 */ 1224 if (buflen < sizeof(filehead)) { 1225 *oldlenp = 0; 1226 return (0); 1227 } 1228 error = copyout(&filehead, where, sizeof(filehead)); 1229 if (error) 1230 return (error); 1231 buflen -= sizeof(filehead); 1232 where += sizeof(filehead); 1233 1234 /* 1235 * followed by an array of file structures 1236 */ 1237 LIST_FOREACH(fp, &filehead, f_list) { 1238 if (buflen < sizeof(struct file)) { 1239 *oldlenp = where - start; 1240 return (ENOMEM); 1241 } 1242 error = copyout(fp, where, sizeof(struct file)); 1243 if (error) 1244 return (error); 1245 buflen -= sizeof(struct file); 1246 where += sizeof(struct file); 1247 } 1248 *oldlenp = where - start; 1249 return (0); 1250 } 1251 1252 /* 1253 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1254 * asserts that the assigned value is in the correct range. 1255 */ 1256 static int 1257 sysctl_kern_autonice(SYSCTLFN_ARGS) 1258 { 1259 int error, t = 0; 1260 struct sysctlnode node; 1261 1262 node = *rnode; 1263 t = *(int*)node.sysctl_data; 1264 node.sysctl_data = &t; 1265 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1266 if (error || newp == NULL) 1267 return (error); 1268 1269 switch (node.sysctl_num) { 1270 case KERN_AUTONICETIME: 1271 if (t >= 0) 1272 autonicetime = t; 1273 break; 1274 case KERN_AUTONICEVAL: 1275 if (t < PRIO_MIN) 1276 t = PRIO_MIN; 1277 else if (t > PRIO_MAX) 1278 t = PRIO_MAX; 1279 autoniceval = t; 1280 break; 1281 } 1282 1283 return (0); 1284 } 1285 1286 /* 1287 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1288 * former it merely checks the message buffer is set up. for the latter, 1289 * it also copies out the data if necessary. 1290 */ 1291 static int 1292 sysctl_msgbuf(SYSCTLFN_ARGS) 1293 { 1294 char *where = oldp; 1295 size_t len, maxlen; 1296 long beg, end; 1297 int error; 1298 1299 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1300 msgbufenabled = 0; 1301 return (ENXIO); 1302 } 1303 1304 switch (rnode->sysctl_num) { 1305 case KERN_MSGBUFSIZE: { 1306 struct sysctlnode node = *rnode; 1307 int msg_bufs = (int)msgbufp->msg_bufs; 1308 node.sysctl_data = &msg_bufs; 1309 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1310 } 1311 case KERN_MSGBUF: 1312 break; 1313 default: 1314 return (EOPNOTSUPP); 1315 } 1316 1317 if (newp != NULL) 1318 return (EPERM); 1319 1320 if (oldp == NULL) { 1321 /* always return full buffer size */ 1322 *oldlenp = msgbufp->msg_bufs; 1323 return (0); 1324 } 1325 1326 error = 0; 1327 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1328 1329 /* 1330 * First, copy from the write pointer to the end of 1331 * message buffer. 1332 */ 1333 beg = msgbufp->msg_bufx; 1334 end = msgbufp->msg_bufs; 1335 while (maxlen > 0) { 1336 len = MIN(end - beg, maxlen); 1337 if (len == 0) 1338 break; 1339 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1340 if (error) 1341 break; 1342 where += len; 1343 maxlen -= len; 1344 1345 /* 1346 * ... then, copy from the beginning of message buffer to 1347 * the write pointer. 1348 */ 1349 beg = 0; 1350 end = msgbufp->msg_bufx; 1351 } 1352 1353 return (error); 1354 } 1355 1356 /* 1357 * sysctl helper routine for kern.defcorename. in the case of a new 1358 * string being assigned, check that it's not a zero-length string. 1359 * (XXX the check in -current doesn't work, but do we really care?) 1360 */ 1361 static int 1362 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1363 { 1364 int error; 1365 char newcorename[MAXPATHLEN]; 1366 struct sysctlnode node; 1367 1368 node = *rnode; 1369 node.sysctl_data = &newcorename[0]; 1370 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1371 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1372 if (error || newp == NULL) 1373 return (error); 1374 1375 /* 1376 * when sysctl_lookup() deals with a string, it's guaranteed 1377 * to come back nul terminated. so there. :) 1378 */ 1379 if (strlen(newcorename) == 0) 1380 return (EINVAL); 1381 1382 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1383 1384 return (0); 1385 } 1386 1387 /* 1388 * sysctl helper routine for kern.cp_time node. adds up cpu time 1389 * across all cpus. 1390 */ 1391 static int 1392 sysctl_kern_cptime(SYSCTLFN_ARGS) 1393 { 1394 struct sysctlnode node = *rnode; 1395 1396 #ifndef MULTIPROCESSOR 1397 1398 if (namelen == 1) { 1399 if (name[0] != 0) 1400 return (ENOENT); 1401 /* 1402 * you're allowed to ask for the zero'th processor 1403 */ 1404 name++; 1405 namelen--; 1406 } 1407 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1408 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1409 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1410 1411 #else /* MULTIPROCESSOR */ 1412 1413 u_int64_t *cp_time = NULL; 1414 int error, n = sysctl_ncpus(), i; 1415 struct cpu_info *ci; 1416 CPU_INFO_ITERATOR cii; 1417 1418 /* 1419 * if you specifically pass a buffer that is the size of the 1420 * sum, or if you are probing for the size, you get the "sum" 1421 * of cp_time (and the size thereof) across all processors. 1422 * 1423 * alternately, you can pass an additional mib number and get 1424 * cp_time for that particular processor. 1425 */ 1426 switch (namelen) { 1427 case 0: 1428 if (*oldlenp == sizeof(u_int64_t) * CPUSTATES || oldp == NULL) { 1429 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1430 n = -1; /* SUM */ 1431 } 1432 else { 1433 node.sysctl_size = n * sizeof(u_int64_t) * CPUSTATES; 1434 n = -2; /* ALL */ 1435 } 1436 break; 1437 case 1: 1438 if (name[0] < 0 || name[0] >= n) 1439 return (ENOENT); /* ENOSUCHPROCESSOR */ 1440 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1441 n = name[0]; 1442 /* 1443 * adjust these so that sysctl_lookup() will be happy 1444 */ 1445 name++; 1446 namelen--; 1447 break; 1448 default: 1449 return (EINVAL); 1450 } 1451 1452 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1453 if (cp_time == NULL) 1454 return (ENOMEM); 1455 node.sysctl_data = cp_time; 1456 memset(cp_time, 0, node.sysctl_size); 1457 1458 for (CPU_INFO_FOREACH(cii, ci)) { 1459 if (n <= 0) 1460 for (i = 0; i < CPUSTATES; i++) 1461 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1462 /* 1463 * if a specific processor was requested and we just 1464 * did it, we're done here 1465 */ 1466 if (n == 0) 1467 break; 1468 /* 1469 * if doing "all", skip to next cp_time set for next processor 1470 */ 1471 if (n == -2) 1472 cp_time += CPUSTATES; 1473 /* 1474 * if we're doing a specific processor, we're one 1475 * processor closer 1476 */ 1477 if (n > 0) 1478 n--; 1479 } 1480 1481 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1482 free(node.sysctl_data, M_TEMP); 1483 return (error); 1484 1485 #endif /* MULTIPROCESSOR */ 1486 } 1487 1488 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1489 /* 1490 * sysctl helper routine for kern.sysvipc_info subtree. 1491 */ 1492 1493 #define FILL_PERM(src, dst) do { \ 1494 (dst)._key = (src)._key; \ 1495 (dst).uid = (src).uid; \ 1496 (dst).gid = (src).gid; \ 1497 (dst).cuid = (src).cuid; \ 1498 (dst).cgid = (src).cgid; \ 1499 (dst).mode = (src).mode; \ 1500 (dst)._seq = (src)._seq; \ 1501 } while (/*CONSTCOND*/ 0); 1502 #define FILL_MSG(src, dst) do { \ 1503 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1504 (dst).msg_qnum = (src).msg_qnum; \ 1505 (dst).msg_qbytes = (src).msg_qbytes; \ 1506 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1507 (dst).msg_lspid = (src).msg_lspid; \ 1508 (dst).msg_lrpid = (src).msg_lrpid; \ 1509 (dst).msg_stime = (src).msg_stime; \ 1510 (dst).msg_rtime = (src).msg_rtime; \ 1511 (dst).msg_ctime = (src).msg_ctime; \ 1512 } while (/*CONSTCOND*/ 0) 1513 #define FILL_SEM(src, dst) do { \ 1514 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1515 (dst).sem_nsems = (src).sem_nsems; \ 1516 (dst).sem_otime = (src).sem_otime; \ 1517 (dst).sem_ctime = (src).sem_ctime; \ 1518 } while (/*CONSTCOND*/ 0) 1519 #define FILL_SHM(src, dst) do { \ 1520 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1521 (dst).shm_segsz = (src).shm_segsz; \ 1522 (dst).shm_lpid = (src).shm_lpid; \ 1523 (dst).shm_cpid = (src).shm_cpid; \ 1524 (dst).shm_atime = (src).shm_atime; \ 1525 (dst).shm_dtime = (src).shm_dtime; \ 1526 (dst).shm_ctime = (src).shm_ctime; \ 1527 (dst).shm_nattch = (src).shm_nattch; \ 1528 } while (/*CONSTCOND*/ 0) 1529 1530 static int 1531 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1532 { 1533 void *where = oldp; 1534 size_t *sizep = oldlenp; 1535 #ifdef SYSVMSG 1536 struct msg_sysctl_info *msgsi = NULL; 1537 #endif 1538 #ifdef SYSVSEM 1539 struct sem_sysctl_info *semsi = NULL; 1540 #endif 1541 #ifdef SYSVSHM 1542 struct shm_sysctl_info *shmsi = NULL; 1543 #endif 1544 size_t infosize, dssize, tsize, buflen; 1545 void *bf = NULL; 1546 char *start; 1547 int32_t nds; 1548 int i, error, ret; 1549 1550 if (namelen != 1) 1551 return (EINVAL); 1552 1553 start = where; 1554 buflen = *sizep; 1555 1556 switch (*name) { 1557 case KERN_SYSVIPC_MSG_INFO: 1558 #ifdef SYSVMSG 1559 infosize = sizeof(msgsi->msginfo); 1560 nds = msginfo.msgmni; 1561 dssize = sizeof(msgsi->msgids[0]); 1562 break; 1563 #else 1564 return (EINVAL); 1565 #endif 1566 case KERN_SYSVIPC_SEM_INFO: 1567 #ifdef SYSVSEM 1568 infosize = sizeof(semsi->seminfo); 1569 nds = seminfo.semmni; 1570 dssize = sizeof(semsi->semids[0]); 1571 break; 1572 #else 1573 return (EINVAL); 1574 #endif 1575 case KERN_SYSVIPC_SHM_INFO: 1576 #ifdef SYSVSHM 1577 infosize = sizeof(shmsi->shminfo); 1578 nds = shminfo.shmmni; 1579 dssize = sizeof(shmsi->shmids[0]); 1580 break; 1581 #else 1582 return (EINVAL); 1583 #endif 1584 default: 1585 return (EINVAL); 1586 } 1587 /* 1588 * Round infosize to 64 bit boundary if requesting more than just 1589 * the info structure or getting the total data size. 1590 */ 1591 if (where == NULL || *sizep > infosize) 1592 infosize = ((infosize + 7) / 8) * 8; 1593 tsize = infosize + nds * dssize; 1594 1595 /* Return just the total size required. */ 1596 if (where == NULL) { 1597 *sizep = tsize; 1598 return (0); 1599 } 1600 1601 /* Not enough room for even the info struct. */ 1602 if (buflen < infosize) { 1603 *sizep = 0; 1604 return (ENOMEM); 1605 } 1606 bf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1607 memset(bf, 0, min(tsize, buflen)); 1608 1609 switch (*name) { 1610 #ifdef SYSVMSG 1611 case KERN_SYSVIPC_MSG_INFO: 1612 msgsi = (struct msg_sysctl_info *)bf; 1613 msgsi->msginfo = msginfo; 1614 break; 1615 #endif 1616 #ifdef SYSVSEM 1617 case KERN_SYSVIPC_SEM_INFO: 1618 semsi = (struct sem_sysctl_info *)bf; 1619 semsi->seminfo = seminfo; 1620 break; 1621 #endif 1622 #ifdef SYSVSHM 1623 case KERN_SYSVIPC_SHM_INFO: 1624 shmsi = (struct shm_sysctl_info *)bf; 1625 shmsi->shminfo = shminfo; 1626 break; 1627 #endif 1628 } 1629 buflen -= infosize; 1630 1631 ret = 0; 1632 if (buflen > 0) { 1633 /* Fill in the IPC data structures. */ 1634 for (i = 0; i < nds; i++) { 1635 if (buflen < dssize) { 1636 ret = ENOMEM; 1637 break; 1638 } 1639 switch (*name) { 1640 #ifdef SYSVMSG 1641 case KERN_SYSVIPC_MSG_INFO: 1642 FILL_MSG(msqids[i], msgsi->msgids[i]); 1643 break; 1644 #endif 1645 #ifdef SYSVSEM 1646 case KERN_SYSVIPC_SEM_INFO: 1647 FILL_SEM(sema[i], semsi->semids[i]); 1648 break; 1649 #endif 1650 #ifdef SYSVSHM 1651 case KERN_SYSVIPC_SHM_INFO: 1652 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1653 break; 1654 #endif 1655 } 1656 buflen -= dssize; 1657 } 1658 } 1659 *sizep -= buflen; 1660 error = copyout(bf, start, *sizep); 1661 /* If copyout succeeded, use return code set earlier. */ 1662 if (error == 0) 1663 error = ret; 1664 if (bf) 1665 free(bf, M_TEMP); 1666 return (error); 1667 } 1668 1669 #undef FILL_PERM 1670 #undef FILL_MSG 1671 #undef FILL_SEM 1672 #undef FILL_SHM 1673 1674 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1675 1676 #if NPTY > 0 1677 /* 1678 * sysctl helper routine for kern.maxptys. ensures that any new value 1679 * is acceptable to the pty subsystem. 1680 */ 1681 static int 1682 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1683 { 1684 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1685 int error, xmax; 1686 struct sysctlnode node; 1687 1688 /* get current value of maxptys */ 1689 xmax = pty_maxptys(0, 0); 1690 1691 node = *rnode; 1692 node.sysctl_data = &xmax; 1693 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1694 if (error || newp == NULL) 1695 return (error); 1696 1697 if (xmax != pty_maxptys(xmax, 1)) 1698 return (EINVAL); 1699 1700 return (0); 1701 } 1702 #endif /* NPTY > 0 */ 1703 1704 /* 1705 * sysctl helper routine for kern.sbmax. basically just ensures that 1706 * any new value is not too small. 1707 */ 1708 static int 1709 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1710 { 1711 int error, new_sbmax; 1712 struct sysctlnode node; 1713 1714 new_sbmax = sb_max; 1715 node = *rnode; 1716 node.sysctl_data = &new_sbmax; 1717 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1718 if (error || newp == NULL) 1719 return (error); 1720 1721 error = sb_max_set(new_sbmax); 1722 1723 return (error); 1724 } 1725 1726 /* 1727 * sysctl helper routine for kern.urandom node. picks a random number 1728 * for you. 1729 */ 1730 static int 1731 sysctl_kern_urnd(SYSCTLFN_ARGS) 1732 { 1733 #if NRND > 0 1734 int v; 1735 1736 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1737 struct sysctlnode node = *rnode; 1738 node.sysctl_data = &v; 1739 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1740 } 1741 else 1742 return (EIO); /*XXX*/ 1743 #else 1744 return (EOPNOTSUPP); 1745 #endif 1746 } 1747 1748 /* 1749 * sysctl helper routine to do kern.lwp.* work. 1750 */ 1751 static int 1752 sysctl_kern_lwp(SYSCTLFN_ARGS) 1753 { 1754 struct kinfo_lwp klwp; 1755 struct proc *p; 1756 struct lwp *l2; 1757 char *where, *dp; 1758 int pid, elem_size, elem_count; 1759 int buflen, needed, error; 1760 1761 if (namelen == 1 && name[0] == CTL_QUERY) 1762 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1763 1764 dp = where = oldp; 1765 buflen = where != NULL ? *oldlenp : 0; 1766 error = needed = 0; 1767 1768 if (newp != NULL || namelen != 3) 1769 return (EINVAL); 1770 pid = name[0]; 1771 elem_size = name[1]; 1772 elem_count = name[2]; 1773 1774 p = pfind(pid); 1775 if (p == NULL) 1776 return (ESRCH); 1777 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1778 if (buflen >= elem_size && elem_count > 0) { 1779 fill_lwp(l2, &klwp); 1780 /* 1781 * Copy out elem_size, but not larger than 1782 * the size of a struct kinfo_proc2. 1783 */ 1784 error = copyout(&klwp, dp, 1785 min(sizeof(klwp), elem_size)); 1786 if (error) 1787 goto cleanup; 1788 dp += elem_size; 1789 buflen -= elem_size; 1790 elem_count--; 1791 } 1792 needed += elem_size; 1793 } 1794 1795 if (where != NULL) { 1796 *oldlenp = dp - where; 1797 if (needed > *oldlenp) 1798 return (ENOMEM); 1799 } else { 1800 needed += KERN_LWPSLOP; 1801 *oldlenp = needed; 1802 } 1803 return (0); 1804 cleanup: 1805 return (error); 1806 } 1807 1808 /* 1809 * sysctl helper routine for kern.forkfsleep node. ensures that the 1810 * given value is not too large or two small, and is at least one 1811 * timer tick if not zero. 1812 */ 1813 static int 1814 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1815 { 1816 /* userland sees value in ms, internally is in ticks */ 1817 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1818 int error, timo, lsleep; 1819 struct sysctlnode node; 1820 1821 lsleep = forkfsleep * 1000 / hz; 1822 node = *rnode; 1823 node.sysctl_data = &lsleep; 1824 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1825 if (error || newp == NULL) 1826 return (error); 1827 1828 /* refuse negative values, and overly 'long time' */ 1829 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1830 return (EINVAL); 1831 1832 timo = mstohz(lsleep); 1833 1834 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1835 if (lsleep != 0 && timo == 0) 1836 forkfsleep = 1; 1837 else 1838 forkfsleep = timo; 1839 1840 return (0); 1841 } 1842 1843 /* 1844 * sysctl helper routine for kern.root_partition 1845 */ 1846 static int 1847 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1848 { 1849 int rootpart = DISKPART(rootdev); 1850 struct sysctlnode node = *rnode; 1851 1852 node.sysctl_data = &rootpart; 1853 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1854 } 1855 1856 /* 1857 * sysctl helper function for kern.drivers 1858 */ 1859 static int 1860 sysctl_kern_drivers(SYSCTLFN_ARGS) 1861 { 1862 int error; 1863 size_t buflen; 1864 struct kinfo_drivers kd; 1865 char *start, *where; 1866 const char *dname; 1867 int i; 1868 extern struct devsw_conv *devsw_conv; 1869 extern int max_devsw_convs; 1870 1871 if (newp != NULL || namelen != 0) 1872 return (EINVAL); 1873 1874 start = where = oldp; 1875 buflen = *oldlenp; 1876 if (where == NULL) { 1877 *oldlenp = max_devsw_convs * sizeof kd; 1878 return 0; 1879 } 1880 1881 /* 1882 * An array of kinfo_drivers structures 1883 */ 1884 error = 0; 1885 for (i = 0; i < max_devsw_convs; i++) { 1886 dname = devsw_conv[i].d_name; 1887 if (dname == NULL) 1888 continue; 1889 if (buflen < sizeof kd) { 1890 error = ENOMEM; 1891 break; 1892 } 1893 memset(&kd, 0, sizeof(kd)); 1894 kd.d_bmajor = devsw_conv[i].d_bmajor; 1895 kd.d_cmajor = devsw_conv[i].d_cmajor; 1896 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1897 error = copyout(&kd, where, sizeof kd); 1898 if (error != 0) 1899 break; 1900 buflen -= sizeof kd; 1901 where += sizeof kd; 1902 } 1903 *oldlenp = where - start; 1904 return error; 1905 } 1906 1907 /* 1908 * sysctl helper function for kern.file2 1909 */ 1910 static int 1911 sysctl_kern_file2(SYSCTLFN_ARGS) 1912 { 1913 struct proc *p; 1914 struct file *fp; 1915 struct filedesc *fd; 1916 struct kinfo_file kf; 1917 char *dp; 1918 u_int i, op; 1919 size_t len, needed, elem_size, out_size; 1920 int error, arg, elem_count; 1921 1922 if (namelen == 1 && name[0] == CTL_QUERY) 1923 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1924 1925 if (namelen != 4) 1926 return (EINVAL); 1927 1928 error = 0; 1929 dp = oldp; 1930 len = (oldp != NULL) ? *oldlenp : 0; 1931 op = name[0]; 1932 arg = name[1]; 1933 elem_size = name[2]; 1934 elem_count = name[3]; 1935 out_size = MIN(sizeof(kf), elem_size); 1936 needed = 0; 1937 1938 if (elem_size < 1 || elem_count < 0) 1939 return (EINVAL); 1940 1941 switch (op) { 1942 case KERN_FILE_BYFILE: 1943 /* 1944 * doesn't use arg so it must be zero 1945 */ 1946 if (arg != 0) 1947 return (EINVAL); 1948 LIST_FOREACH(fp, &filehead, f_list) { 1949 if (len >= elem_size && elem_count > 0) { 1950 fill_file(&kf, fp, NULL, 0); 1951 error = copyout(&kf, dp, out_size); 1952 if (error) 1953 break; 1954 dp += elem_size; 1955 len -= elem_size; 1956 } 1957 if (elem_count > 0) { 1958 needed += elem_size; 1959 if (elem_count != INT_MAX) 1960 elem_count--; 1961 } 1962 } 1963 break; 1964 case KERN_FILE_BYPID: 1965 if (arg < -1) 1966 /* -1 means all processes */ 1967 return (EINVAL); 1968 proclist_lock_read(); 1969 PROCLIST_FOREACH(p, &allproc) { 1970 if (p->p_stat == SIDL) 1971 /* skip embryonic processes */ 1972 continue; 1973 if (arg > 0 && p->p_pid != arg) 1974 /* pick only the one we want */ 1975 /* XXX want 0 to mean "kernel files" */ 1976 continue; 1977 fd = p->p_fd; 1978 for (i = 0; i < fd->fd_nfiles; i++) { 1979 fp = fd->fd_ofiles[i]; 1980 if (fp == NULL || !FILE_IS_USABLE(fp)) 1981 continue; 1982 if (len >= elem_size && elem_count > 0) { 1983 fill_file(&kf, fd->fd_ofiles[i], 1984 p, i); 1985 error = copyout(&kf, dp, out_size); 1986 if (error) 1987 break; 1988 dp += elem_size; 1989 len -= elem_size; 1990 } 1991 if (elem_count > 0) { 1992 needed += elem_size; 1993 if (elem_count != INT_MAX) 1994 elem_count--; 1995 } 1996 } 1997 } 1998 proclist_unlock_read(); 1999 break; 2000 default: 2001 return (EINVAL); 2002 } 2003 2004 if (oldp == NULL) 2005 needed += KERN_FILESLOP * elem_size; 2006 *oldlenp = needed; 2007 2008 return (error); 2009 } 2010 2011 static void 2012 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2013 { 2014 2015 memset(kp, 0, sizeof(*kp)); 2016 2017 kp->ki_fileaddr = PTRTOUINT64(fp); 2018 kp->ki_flag = fp->f_flag; 2019 kp->ki_iflags = fp->f_iflags; 2020 kp->ki_ftype = fp->f_type; 2021 kp->ki_count = fp->f_count; 2022 kp->ki_msgcount = fp->f_msgcount; 2023 kp->ki_usecount = fp->f_usecount; 2024 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2025 kp->ki_fuid = fp->f_cred->cr_uid; 2026 kp->ki_fgid = fp->f_cred->cr_gid; 2027 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2028 kp->ki_foffset = fp->f_offset; 2029 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2030 2031 /* vnode information to glue this file to something */ 2032 if (fp->f_type == DTYPE_VNODE) { 2033 struct vnode *vp = (struct vnode *)fp->f_data; 2034 2035 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2036 kp->ki_vsize = vp->v_size; 2037 kp->ki_vtype = vp->v_type; 2038 kp->ki_vtag = vp->v_tag; 2039 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2040 } 2041 2042 /* process information when retrieved via KERN_FILE_BYPID */ 2043 if (p) { 2044 kp->ki_pid = p->p_pid; 2045 kp->ki_fd = i; 2046 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2047 } 2048 } 2049 2050 static int 2051 sysctl_doeproc(SYSCTLFN_ARGS) 2052 { 2053 struct eproc eproc; 2054 struct kinfo_proc2 kproc2; 2055 struct kinfo_proc *dp; 2056 struct proc *p; 2057 const struct proclist_desc *pd; 2058 char *where, *dp2; 2059 int type, op, arg; 2060 u_int elem_size, elem_count; 2061 size_t buflen, needed; 2062 int error; 2063 2064 if (namelen == 1 && name[0] == CTL_QUERY) 2065 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2066 2067 dp = oldp; 2068 dp2 = where = oldp; 2069 buflen = where != NULL ? *oldlenp : 0; 2070 error = 0; 2071 needed = 0; 2072 type = rnode->sysctl_num; 2073 2074 if (type == KERN_PROC) { 2075 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2076 return (EINVAL); 2077 op = name[0]; 2078 if (op != KERN_PROC_ALL) 2079 arg = name[1]; 2080 else 2081 arg = 0; /* Quell compiler warning */ 2082 elem_size = elem_count = 0; /* Ditto */ 2083 } else { 2084 if (namelen != 4) 2085 return (EINVAL); 2086 op = name[0]; 2087 arg = name[1]; 2088 elem_size = name[2]; 2089 elem_count = name[3]; 2090 } 2091 2092 proclist_lock_read(); 2093 2094 pd = proclists; 2095 again: 2096 PROCLIST_FOREACH(p, pd->pd_list) { 2097 /* 2098 * Skip embryonic processes. 2099 */ 2100 if (p->p_stat == SIDL) 2101 continue; 2102 /* 2103 * TODO - make more efficient (see notes below). 2104 * do by session. 2105 */ 2106 switch (op) { 2107 2108 case KERN_PROC_PID: 2109 /* could do this with just a lookup */ 2110 if (p->p_pid != (pid_t)arg) 2111 continue; 2112 break; 2113 2114 case KERN_PROC_PGRP: 2115 /* could do this by traversing pgrp */ 2116 if (p->p_pgrp->pg_id != (pid_t)arg) 2117 continue; 2118 break; 2119 2120 case KERN_PROC_SESSION: 2121 if (p->p_session->s_sid != (pid_t)arg) 2122 continue; 2123 break; 2124 2125 case KERN_PROC_TTY: 2126 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2127 if ((p->p_flag & P_CONTROLT) == 0 || 2128 p->p_session->s_ttyp == NULL || 2129 p->p_session->s_ttyvp != NULL) 2130 continue; 2131 } else if ((p->p_flag & P_CONTROLT) == 0 || 2132 p->p_session->s_ttyp == NULL) { 2133 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2134 continue; 2135 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2136 continue; 2137 break; 2138 2139 case KERN_PROC_UID: 2140 if (p->p_ucred->cr_uid != (uid_t)arg) 2141 continue; 2142 break; 2143 2144 case KERN_PROC_RUID: 2145 if (p->p_cred->p_ruid != (uid_t)arg) 2146 continue; 2147 break; 2148 2149 case KERN_PROC_GID: 2150 if (p->p_ucred->cr_gid != (uid_t)arg) 2151 continue; 2152 break; 2153 2154 case KERN_PROC_RGID: 2155 if (p->p_cred->p_rgid != (uid_t)arg) 2156 continue; 2157 break; 2158 2159 case KERN_PROC_ALL: 2160 /* allow everything */ 2161 break; 2162 2163 default: 2164 error = EINVAL; 2165 goto cleanup; 2166 } 2167 if (type == KERN_PROC) { 2168 if (buflen >= sizeof(struct kinfo_proc)) { 2169 fill_eproc(p, &eproc); 2170 error = copyout(p, &dp->kp_proc, 2171 sizeof(struct proc)); 2172 if (error) 2173 goto cleanup; 2174 error = copyout(&eproc, &dp->kp_eproc, 2175 sizeof(eproc)); 2176 if (error) 2177 goto cleanup; 2178 dp++; 2179 buflen -= sizeof(struct kinfo_proc); 2180 } 2181 needed += sizeof(struct kinfo_proc); 2182 } else { /* KERN_PROC2 */ 2183 if (buflen >= elem_size && elem_count > 0) { 2184 fill_kproc2(p, &kproc2); 2185 /* 2186 * Copy out elem_size, but not larger than 2187 * the size of a struct kinfo_proc2. 2188 */ 2189 error = copyout(&kproc2, dp2, 2190 min(sizeof(kproc2), elem_size)); 2191 if (error) 2192 goto cleanup; 2193 dp2 += elem_size; 2194 buflen -= elem_size; 2195 elem_count--; 2196 } 2197 needed += elem_size; 2198 } 2199 } 2200 pd++; 2201 if (pd->pd_list != NULL) 2202 goto again; 2203 proclist_unlock_read(); 2204 2205 if (where != NULL) { 2206 if (type == KERN_PROC) 2207 *oldlenp = (char *)dp - where; 2208 else 2209 *oldlenp = dp2 - where; 2210 if (needed > *oldlenp) 2211 return (ENOMEM); 2212 } else { 2213 needed += KERN_PROCSLOP; 2214 *oldlenp = needed; 2215 } 2216 return (0); 2217 cleanup: 2218 proclist_unlock_read(); 2219 return (error); 2220 } 2221 2222 /* 2223 * sysctl helper routine for kern.proc_args pseudo-subtree. 2224 */ 2225 static int 2226 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2227 { 2228 struct ps_strings pss; 2229 struct proc *p, *up = l->l_proc; 2230 size_t len, upper_bound, xlen, i; 2231 struct uio auio; 2232 struct iovec aiov; 2233 vaddr_t argv; 2234 pid_t pid; 2235 int nargv, type, error; 2236 char *arg; 2237 char *tmp; 2238 2239 if (namelen == 1 && name[0] == CTL_QUERY) 2240 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2241 2242 if (newp != NULL || namelen != 2) 2243 return (EINVAL); 2244 pid = name[0]; 2245 type = name[1]; 2246 2247 switch (type) { 2248 case KERN_PROC_ARGV: 2249 case KERN_PROC_NARGV: 2250 case KERN_PROC_ENV: 2251 case KERN_PROC_NENV: 2252 /* ok */ 2253 break; 2254 default: 2255 return (EINVAL); 2256 } 2257 2258 /* check pid */ 2259 if ((p = pfind(pid)) == NULL) 2260 return (EINVAL); 2261 2262 /* only root or same user change look at the environment */ 2263 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2264 if (up->p_ucred->cr_uid != 0) { 2265 if (up->p_cred->p_ruid != p->p_cred->p_ruid || 2266 up->p_cred->p_ruid != p->p_cred->p_svuid) 2267 return (EPERM); 2268 } 2269 } 2270 2271 if (oldp == NULL) { 2272 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2273 *oldlenp = sizeof (int); 2274 else 2275 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2276 return (0); 2277 } 2278 2279 /* 2280 * Zombies don't have a stack, so we can't read their psstrings. 2281 * System processes also don't have a user stack. 2282 */ 2283 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) 2284 return (EINVAL); 2285 2286 /* 2287 * Lock the process down in memory. 2288 */ 2289 /* XXXCDC: how should locking work here? */ 2290 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) 2291 return (EFAULT); 2292 2293 p->p_vmspace->vm_refcnt++; /* XXX */ 2294 2295 /* 2296 * Allocate a temporary buffer to hold the arguments. 2297 */ 2298 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2299 2300 /* 2301 * Read in the ps_strings structure. 2302 */ 2303 aiov.iov_base = &pss; 2304 aiov.iov_len = sizeof(pss); 2305 auio.uio_iov = &aiov; 2306 auio.uio_iovcnt = 1; 2307 auio.uio_offset = (vaddr_t)p->p_psstr; 2308 auio.uio_resid = sizeof(pss); 2309 auio.uio_segflg = UIO_SYSSPACE; 2310 auio.uio_rw = UIO_READ; 2311 auio.uio_procp = NULL; 2312 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2313 if (error) 2314 goto done; 2315 2316 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2317 memcpy(&nargv, (char *)&pss + p->p_psnargv, sizeof(nargv)); 2318 else 2319 memcpy(&nargv, (char *)&pss + p->p_psnenv, sizeof(nargv)); 2320 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2321 error = copyout(&nargv, oldp, sizeof(nargv)); 2322 *oldlenp = sizeof(nargv); 2323 goto done; 2324 } 2325 /* 2326 * Now read the address of the argument vector. 2327 */ 2328 switch (type) { 2329 case KERN_PROC_ARGV: 2330 /* XXX compat32 stuff here */ 2331 memcpy(&tmp, (char *)&pss + p->p_psargv, sizeof(tmp)); 2332 break; 2333 case KERN_PROC_ENV: 2334 memcpy(&tmp, (char *)&pss + p->p_psenv, sizeof(tmp)); 2335 break; 2336 default: 2337 return (EINVAL); 2338 } 2339 auio.uio_offset = (off_t)(unsigned long)tmp; 2340 aiov.iov_base = &argv; 2341 aiov.iov_len = sizeof(argv); 2342 auio.uio_iov = &aiov; 2343 auio.uio_iovcnt = 1; 2344 auio.uio_resid = sizeof(argv); 2345 auio.uio_segflg = UIO_SYSSPACE; 2346 auio.uio_rw = UIO_READ; 2347 auio.uio_procp = NULL; 2348 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2349 if (error) 2350 goto done; 2351 2352 /* 2353 * Now copy in the actual argument vector, one page at a time, 2354 * since we don't know how long the vector is (though, we do 2355 * know how many NUL-terminated strings are in the vector). 2356 */ 2357 len = 0; 2358 upper_bound = *oldlenp; 2359 for (; nargv != 0 && len < upper_bound; len += xlen) { 2360 aiov.iov_base = arg; 2361 aiov.iov_len = PAGE_SIZE; 2362 auio.uio_iov = &aiov; 2363 auio.uio_iovcnt = 1; 2364 auio.uio_offset = argv + len; 2365 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2366 auio.uio_resid = xlen; 2367 auio.uio_segflg = UIO_SYSSPACE; 2368 auio.uio_rw = UIO_READ; 2369 auio.uio_procp = NULL; 2370 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2371 if (error) 2372 goto done; 2373 2374 for (i = 0; i < xlen && nargv != 0; i++) { 2375 if (arg[i] == '\0') 2376 nargv--; /* one full string */ 2377 } 2378 2379 /* 2380 * Make sure we don't copyout past the end of the user's 2381 * buffer. 2382 */ 2383 if (len + i > upper_bound) 2384 i = upper_bound - len; 2385 2386 error = copyout(arg, (char *)oldp + len, i); 2387 if (error) 2388 break; 2389 2390 if (nargv == 0) { 2391 len += i; 2392 break; 2393 } 2394 } 2395 *oldlenp = len; 2396 2397 done: 2398 uvmspace_free(p->p_vmspace); 2399 2400 free(arg, M_TEMP); 2401 return (error); 2402 } 2403 2404 /* 2405 * Sysctl helper routine for Verified Exec. 2406 */ 2407 #ifdef VERIFIED_EXEC 2408 static int 2409 sysctl_kern_veriexec(SYSCTLFN_ARGS) 2410 { 2411 int newval, error; 2412 int *var = NULL, raise_only = 0; 2413 struct sysctlnode node; 2414 2415 node = *rnode; 2416 2417 switch (rnode->sysctl_num) { 2418 case VERIEXEC_STRICT: 2419 raise_only = 1; 2420 var = &veriexec_strict; 2421 break; 2422 case VERIEXEC_ALGORITHMS: 2423 node.sysctl_data = veriexec_fp_names; 2424 node.sysctl_size = strlen(veriexec_fp_names) + 1; 2425 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2426 default: 2427 return (EINVAL); 2428 } 2429 2430 newval = *var; 2431 2432 node.sysctl_data = &newval; 2433 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2434 if (error || newp == NULL) { 2435 return (error); 2436 } 2437 2438 if (raise_only && (newval < *var)) 2439 return (EPERM); 2440 2441 *var = newval; 2442 2443 return (error); 2444 } 2445 #endif /* VERIFIED_EXEC */ 2446 2447 /* 2448 * sysctl helper routine for kern.cp_id node. maps cpus to their 2449 * cpuids. 2450 */ 2451 static int 2452 sysctl_kern_cpid(SYSCTLFN_ARGS) 2453 { 2454 struct sysctlnode node = *rnode; 2455 2456 #ifndef MULTIPROCESSOR 2457 u_int64_t id; 2458 2459 if (namelen == 1) { 2460 if (name[0] != 0) 2461 return (ENOENT); 2462 /* 2463 * you're allowed to ask for the zero'th processor 2464 */ 2465 name++; 2466 namelen--; 2467 } 2468 node.sysctl_data = &id; 2469 node.sysctl_size = sizeof(id); 2470 id = cpu_number(); 2471 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2472 2473 #else /* MULTIPROCESSOR */ 2474 u_int64_t *cp_id = NULL; 2475 int error, n = sysctl_ncpus(); 2476 struct cpu_info *ci; 2477 CPU_INFO_ITERATOR cii; 2478 2479 /* 2480 * here you may either retrieve a single cpu id or the whole 2481 * set. the size you get back when probing depends on what 2482 * you ask for. 2483 */ 2484 switch (namelen) { 2485 case 0: 2486 node.sysctl_size = n * sizeof(u_int64_t); 2487 n = -2; /* ALL */ 2488 break; 2489 case 1: 2490 if (name[0] < 0 || name[0] >= n) 2491 return (ENOENT); /* ENOSUCHPROCESSOR */ 2492 node.sysctl_size = sizeof(u_int64_t); 2493 n = name[0]; 2494 /* 2495 * adjust these so that sysctl_lookup() will be happy 2496 */ 2497 name++; 2498 namelen--; 2499 break; 2500 default: 2501 return (EINVAL); 2502 } 2503 2504 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2505 if (cp_id == NULL) 2506 return (ENOMEM); 2507 node.sysctl_data = cp_id; 2508 memset(cp_id, 0, node.sysctl_size); 2509 2510 for (CPU_INFO_FOREACH(cii, ci)) { 2511 if (n <= 0) 2512 cp_id[0] = ci->ci_cpuid; 2513 /* 2514 * if a specific processor was requested and we just 2515 * did it, we're done here 2516 */ 2517 if (n == 0) 2518 break; 2519 /* 2520 * if doing "all", skip to next cp_id slot for next processor 2521 */ 2522 if (n == -2) 2523 cp_id++; 2524 /* 2525 * if we're doing a specific processor, we're one 2526 * processor closer 2527 */ 2528 if (n > 0) 2529 n--; 2530 } 2531 2532 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2533 free(node.sysctl_data, M_TEMP); 2534 return (error); 2535 2536 #endif /* MULTIPROCESSOR */ 2537 } 2538 2539 /* 2540 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2541 * calculate on the fly taking into account integer overflow and the 2542 * current wired count. 2543 */ 2544 static int 2545 sysctl_hw_usermem(SYSCTLFN_ARGS) 2546 { 2547 u_int ui; 2548 u_quad_t uq; 2549 struct sysctlnode node; 2550 2551 node = *rnode; 2552 switch (rnode->sysctl_num) { 2553 case HW_USERMEM: 2554 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2555 ui = UINT_MAX; 2556 else 2557 ui *= PAGE_SIZE; 2558 node.sysctl_data = &ui; 2559 break; 2560 case HW_USERMEM64: 2561 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2562 node.sysctl_data = &uq; 2563 break; 2564 default: 2565 return (EINVAL); 2566 } 2567 2568 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2569 } 2570 2571 /* 2572 * sysctl helper routine for kern.cnmagic node. pulls the old value 2573 * out, encoded, and stuffs the new value in for decoding. 2574 */ 2575 static int 2576 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2577 { 2578 char magic[CNS_LEN]; 2579 int error; 2580 struct sysctlnode node; 2581 2582 if (oldp) 2583 cn_get_magic(magic, CNS_LEN); 2584 node = *rnode; 2585 node.sysctl_data = &magic[0]; 2586 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2587 if (error || newp == NULL) 2588 return (error); 2589 2590 return (cn_set_magic(magic)); 2591 } 2592 2593 static int 2594 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2595 { 2596 int ncpu; 2597 struct sysctlnode node; 2598 2599 ncpu = sysctl_ncpus(); 2600 node = *rnode; 2601 node.sysctl_data = &ncpu; 2602 2603 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2604 } 2605 2606 2607 /* 2608 * ******************************************************************** 2609 * section 3: public helper routines that are used for more than one 2610 * node 2611 * ******************************************************************** 2612 */ 2613 2614 /* 2615 * sysctl helper routine for the kern.root_device node and some ports' 2616 * machdep.root_device nodes. 2617 */ 2618 int 2619 sysctl_root_device(SYSCTLFN_ARGS) 2620 { 2621 struct sysctlnode node; 2622 2623 node = *rnode; 2624 node.sysctl_data = root_device->dv_xname; 2625 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2626 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2627 } 2628 2629 /* 2630 * sysctl helper routine for kern.consdev, dependent on the current 2631 * state of the console. also used for machdep.console_device on some 2632 * ports. 2633 */ 2634 int 2635 sysctl_consdev(SYSCTLFN_ARGS) 2636 { 2637 dev_t consdev; 2638 struct sysctlnode node; 2639 2640 if (cn_tab != NULL) 2641 consdev = cn_tab->cn_dev; 2642 else 2643 consdev = NODEV; 2644 node = *rnode; 2645 node.sysctl_data = &consdev; 2646 node.sysctl_size = sizeof(consdev); 2647 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2648 } 2649 2650 /* 2651 * ******************************************************************** 2652 * section 4: support for some helpers 2653 * ******************************************************************** 2654 */ 2655 2656 /* 2657 * Fill in a kinfo_proc2 structure for the specified process. 2658 */ 2659 static void 2660 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2661 { 2662 struct tty *tp; 2663 struct lwp *l; 2664 struct timeval ut, st; 2665 2666 memset(ki, 0, sizeof(*ki)); 2667 2668 ki->p_paddr = PTRTOUINT64(p); 2669 ki->p_fd = PTRTOUINT64(p->p_fd); 2670 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2671 ki->p_stats = PTRTOUINT64(p->p_stats); 2672 ki->p_limit = PTRTOUINT64(p->p_limit); 2673 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2674 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2675 ki->p_sess = PTRTOUINT64(p->p_session); 2676 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2677 ki->p_ru = PTRTOUINT64(p->p_ru); 2678 2679 ki->p_eflag = 0; 2680 ki->p_exitsig = p->p_exitsig; 2681 ki->p_flag = p->p_flag; 2682 2683 ki->p_pid = p->p_pid; 2684 if (p->p_pptr) 2685 ki->p_ppid = p->p_pptr->p_pid; 2686 else 2687 ki->p_ppid = 0; 2688 ki->p_sid = p->p_session->s_sid; 2689 ki->p__pgid = p->p_pgrp->pg_id; 2690 2691 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2692 2693 ki->p_uid = p->p_ucred->cr_uid; 2694 ki->p_ruid = p->p_cred->p_ruid; 2695 ki->p_gid = p->p_ucred->cr_gid; 2696 ki->p_rgid = p->p_cred->p_rgid; 2697 ki->p_svuid = p->p_cred->p_svuid; 2698 ki->p_svgid = p->p_cred->p_svgid; 2699 2700 memcpy(ki->p_groups, p->p_cred->pc_ucred->cr_groups, 2701 min(sizeof(ki->p_groups), sizeof(p->p_cred->pc_ucred->cr_groups))); 2702 ki->p_ngroups = p->p_cred->pc_ucred->cr_ngroups; 2703 2704 ki->p_jobc = p->p_pgrp->pg_jobc; 2705 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2706 ki->p_tdev = tp->t_dev; 2707 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2708 ki->p_tsess = PTRTOUINT64(tp->t_session); 2709 } else { 2710 ki->p_tdev = NODEV; 2711 } 2712 2713 ki->p_estcpu = p->p_estcpu; 2714 ki->p_rtime_sec = p->p_rtime.tv_sec; 2715 ki->p_rtime_usec = p->p_rtime.tv_usec; 2716 ki->p_cpticks = p->p_cpticks; 2717 ki->p_pctcpu = p->p_pctcpu; 2718 2719 ki->p_uticks = p->p_uticks; 2720 ki->p_sticks = p->p_sticks; 2721 ki->p_iticks = p->p_iticks; 2722 2723 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2724 ki->p_traceflag = p->p_traceflag; 2725 2726 2727 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2728 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2729 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2730 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2731 2732 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2733 ki->p_realstat = p->p_stat; 2734 ki->p_nice = p->p_nice; 2735 2736 ki->p_xstat = p->p_xstat; 2737 ki->p_acflag = p->p_acflag; 2738 2739 strncpy(ki->p_comm, p->p_comm, 2740 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2741 2742 strncpy(ki->p_login, p->p_session->s_login, 2743 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2744 2745 ki->p_nlwps = p->p_nlwps; 2746 ki->p_nrlwps = p->p_nrlwps; 2747 ki->p_realflag = p->p_flag; 2748 2749 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2750 ki->p_vm_rssize = 0; 2751 ki->p_vm_tsize = 0; 2752 ki->p_vm_dsize = 0; 2753 ki->p_vm_ssize = 0; 2754 l = NULL; 2755 } else { 2756 struct vmspace *vm = p->p_vmspace; 2757 2758 ki->p_vm_rssize = vm_resident_count(vm); 2759 ki->p_vm_tsize = vm->vm_tsize; 2760 ki->p_vm_dsize = vm->vm_dsize; 2761 ki->p_vm_ssize = vm->vm_ssize; 2762 2763 /* Pick a "representative" LWP */ 2764 l = proc_representative_lwp(p); 2765 ki->p_forw = PTRTOUINT64(l->l_forw); 2766 ki->p_back = PTRTOUINT64(l->l_back); 2767 ki->p_addr = PTRTOUINT64(l->l_addr); 2768 ki->p_stat = l->l_stat; 2769 ki->p_flag |= l->l_flag; 2770 ki->p_swtime = l->l_swtime; 2771 ki->p_slptime = l->l_slptime; 2772 if (l->l_stat == LSONPROC) { 2773 KDASSERT(l->l_cpu != NULL); 2774 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2775 } else 2776 ki->p_schedflags = 0; 2777 ki->p_holdcnt = l->l_holdcnt; 2778 ki->p_priority = l->l_priority; 2779 ki->p_usrpri = l->l_usrpri; 2780 if (l->l_wmesg) 2781 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2782 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2783 2784 } 2785 2786 if (p->p_session->s_ttyvp) 2787 ki->p_eflag |= EPROC_CTTY; 2788 if (SESS_LEADER(p)) 2789 ki->p_eflag |= EPROC_SLEADER; 2790 2791 /* XXX Is this double check necessary? */ 2792 if (P_ZOMBIE(p)) { 2793 ki->p_uvalid = 0; 2794 } else { 2795 ki->p_uvalid = 1; 2796 2797 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2798 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2799 2800 calcru(p, &ut, &st, 0); 2801 ki->p_uutime_sec = ut.tv_sec; 2802 ki->p_uutime_usec = ut.tv_usec; 2803 ki->p_ustime_sec = st.tv_sec; 2804 ki->p_ustime_usec = st.tv_usec; 2805 2806 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2807 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2808 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2809 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2810 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2811 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2812 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2813 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2814 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2815 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2816 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2817 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2818 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 2819 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 2820 2821 timeradd(&p->p_stats->p_cru.ru_utime, 2822 &p->p_stats->p_cru.ru_stime, &ut); 2823 ki->p_uctime_sec = ut.tv_sec; 2824 ki->p_uctime_usec = ut.tv_usec; 2825 } 2826 #ifdef MULTIPROCESSOR 2827 if (l && l->l_cpu != NULL) 2828 ki->p_cpuid = l->l_cpu->ci_cpuid; 2829 else 2830 #endif 2831 ki->p_cpuid = KI_NOCPU; 2832 } 2833 2834 /* 2835 * Fill in a kinfo_lwp structure for the specified lwp. 2836 */ 2837 static void 2838 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2839 { 2840 2841 kl->l_forw = PTRTOUINT64(l->l_forw); 2842 kl->l_back = PTRTOUINT64(l->l_back); 2843 kl->l_laddr = PTRTOUINT64(l); 2844 kl->l_addr = PTRTOUINT64(l->l_addr); 2845 kl->l_stat = l->l_stat; 2846 kl->l_lid = l->l_lid; 2847 kl->l_flag = l->l_flag; 2848 2849 kl->l_swtime = l->l_swtime; 2850 kl->l_slptime = l->l_slptime; 2851 if (l->l_stat == LSONPROC) { 2852 KDASSERT(l->l_cpu != NULL); 2853 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2854 } else 2855 kl->l_schedflags = 0; 2856 kl->l_holdcnt = l->l_holdcnt; 2857 kl->l_priority = l->l_priority; 2858 kl->l_usrpri = l->l_usrpri; 2859 if (l->l_wmesg) 2860 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2861 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2862 #ifdef MULTIPROCESSOR 2863 if (l->l_cpu != NULL) 2864 kl->l_cpuid = l->l_cpu->ci_cpuid; 2865 else 2866 #endif 2867 kl->l_cpuid = KI_NOCPU; 2868 } 2869 2870 /* 2871 * Fill in an eproc structure for the specified process. 2872 */ 2873 void 2874 fill_eproc(struct proc *p, struct eproc *ep) 2875 { 2876 struct tty *tp; 2877 struct lwp *l; 2878 2879 ep->e_paddr = p; 2880 ep->e_sess = p->p_session; 2881 ep->e_pcred = *p->p_cred; 2882 ep->e_ucred = *p->p_ucred; 2883 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2884 ep->e_vm.vm_rssize = 0; 2885 ep->e_vm.vm_tsize = 0; 2886 ep->e_vm.vm_dsize = 0; 2887 ep->e_vm.vm_ssize = 0; 2888 /* ep->e_vm.vm_pmap = XXX; */ 2889 } else { 2890 struct vmspace *vm = p->p_vmspace; 2891 2892 ep->e_vm.vm_rssize = vm_resident_count(vm); 2893 ep->e_vm.vm_tsize = vm->vm_tsize; 2894 ep->e_vm.vm_dsize = vm->vm_dsize; 2895 ep->e_vm.vm_ssize = vm->vm_ssize; 2896 2897 /* Pick a "representative" LWP */ 2898 l = proc_representative_lwp(p); 2899 2900 if (l->l_wmesg) 2901 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2902 } 2903 if (p->p_pptr) 2904 ep->e_ppid = p->p_pptr->p_pid; 2905 else 2906 ep->e_ppid = 0; 2907 ep->e_pgid = p->p_pgrp->pg_id; 2908 ep->e_sid = ep->e_sess->s_sid; 2909 ep->e_jobc = p->p_pgrp->pg_jobc; 2910 if ((p->p_flag & P_CONTROLT) && 2911 (tp = ep->e_sess->s_ttyp)) { 2912 ep->e_tdev = tp->t_dev; 2913 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2914 ep->e_tsess = tp->t_session; 2915 } else 2916 ep->e_tdev = NODEV; 2917 2918 ep->e_xsize = ep->e_xrssize = 0; 2919 ep->e_xccount = ep->e_xswrss = 0; 2920 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2921 if (SESS_LEADER(p)) 2922 ep->e_flag |= EPROC_SLEADER; 2923 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2924 } 2925