init_sysctl.c revision 1.36
1 /* $NetBSD: init_sysctl.c,v 1.36 2005/03/11 06:16:15 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 1.36 2005/03/11 06:16:15 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 73 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 74 #include <sys/ipc.h> 75 #endif 76 #ifdef SYSVMSG 77 #include <sys/msg.h> 78 #endif 79 #ifdef SYSVSEM 80 #include <sys/sem.h> 81 #endif 82 #ifdef SYSVSHM 83 #include <sys/shm.h> 84 #endif 85 86 #include <machine/cpu.h> 87 88 /* 89 * try over estimating by 5 procs/lwps 90 */ 91 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 92 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 93 94 #ifndef MULTIPROCESSOR 95 #define sysctl_ncpus() (1) 96 #else /* MULTIPROCESSOR */ 97 #ifndef CPU_INFO_FOREACH 98 #define CPU_INFO_ITERATOR int 99 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 100 #endif 101 static int 102 sysctl_ncpus(void) 103 { 104 struct cpu_info *ci; 105 CPU_INFO_ITERATOR cii; 106 107 int ncpus = 0; 108 for (CPU_INFO_FOREACH(cii, ci)) 109 ncpus++; 110 return (ncpus); 111 } 112 #endif /* MULTIPROCESSOR */ 113 114 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 115 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 116 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 117 static int sysctl_kern_securelevel(SYSCTLFN_PROTO); 118 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 119 static int sysctl_setlen(SYSCTLFN_PROTO); 120 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 121 static int sysctl_kern_file(SYSCTLFN_PROTO); 122 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 123 static int sysctl_msgbuf(SYSCTLFN_PROTO); 124 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 125 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 126 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 127 static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 128 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 129 #if NPTY > 0 130 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 131 #endif /* NPTY > 0 */ 132 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 133 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 134 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 135 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 136 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 137 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 138 static int sysctl_kern_file2(SYSCTLFN_PROTO); 139 static int sysctl_doeproc(SYSCTLFN_PROTO); 140 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 141 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 142 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 143 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 144 145 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 146 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 147 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 148 int); 149 150 /* 151 * ******************************************************************** 152 * section 1: setup routines 153 * ******************************************************************** 154 * these functions are stuffed into a link set for sysctl setup 155 * functions. they're never called or referenced from anywhere else. 156 * ******************************************************************** 157 */ 158 159 /* 160 * sets up the base nodes... 161 */ 162 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 163 { 164 165 sysctl_createv(clog, 0, NULL, NULL, 166 CTLFLAG_PERMANENT, 167 CTLTYPE_NODE, "kern", 168 SYSCTL_DESCR("High kernel"), 169 NULL, 0, NULL, 0, 170 CTL_KERN, CTL_EOL); 171 sysctl_createv(clog, 0, NULL, NULL, 172 CTLFLAG_PERMANENT, 173 CTLTYPE_NODE, "vm", 174 SYSCTL_DESCR("Virtual memory"), 175 NULL, 0, NULL, 0, 176 CTL_VM, CTL_EOL); 177 sysctl_createv(clog, 0, NULL, NULL, 178 CTLFLAG_PERMANENT, 179 CTLTYPE_NODE, "vfs", 180 SYSCTL_DESCR("Filesystem"), 181 NULL, 0, NULL, 0, 182 CTL_VFS, CTL_EOL); 183 sysctl_createv(clog, 0, NULL, NULL, 184 CTLFLAG_PERMANENT, 185 CTLTYPE_NODE, "net", 186 SYSCTL_DESCR("Networking"), 187 NULL, 0, NULL, 0, 188 CTL_NET, CTL_EOL); 189 sysctl_createv(clog, 0, NULL, NULL, 190 CTLFLAG_PERMANENT, 191 CTLTYPE_NODE, "debug", 192 SYSCTL_DESCR("Debugging"), 193 NULL, 0, NULL, 0, 194 CTL_DEBUG, CTL_EOL); 195 sysctl_createv(clog, 0, NULL, NULL, 196 CTLFLAG_PERMANENT, 197 CTLTYPE_NODE, "hw", 198 SYSCTL_DESCR("Generic CPU, I/O"), 199 NULL, 0, NULL, 0, 200 CTL_HW, CTL_EOL); 201 sysctl_createv(clog, 0, NULL, NULL, 202 CTLFLAG_PERMANENT, 203 CTLTYPE_NODE, "machdep", 204 SYSCTL_DESCR("Machine dependent"), 205 NULL, 0, NULL, 0, 206 CTL_MACHDEP, CTL_EOL); 207 /* 208 * this node is inserted so that the sysctl nodes in libc can 209 * operate. 210 */ 211 sysctl_createv(clog, 0, NULL, NULL, 212 CTLFLAG_PERMANENT, 213 CTLTYPE_NODE, "user", 214 SYSCTL_DESCR("User-level"), 215 NULL, 0, NULL, 0, 216 CTL_USER, CTL_EOL); 217 sysctl_createv(clog, 0, NULL, NULL, 218 CTLFLAG_PERMANENT, 219 CTLTYPE_NODE, "ddb", 220 SYSCTL_DESCR("In-kernel debugger"), 221 NULL, 0, NULL, 0, 222 CTL_DDB, CTL_EOL); 223 sysctl_createv(clog, 0, NULL, NULL, 224 CTLFLAG_PERMANENT, 225 CTLTYPE_NODE, "proc", 226 SYSCTL_DESCR("Per-process"), 227 NULL, 0, NULL, 0, 228 CTL_PROC, CTL_EOL); 229 sysctl_createv(clog, 0, NULL, NULL, 230 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 231 CTLTYPE_NODE, "vendor", 232 SYSCTL_DESCR("Vendor specific"), 233 NULL, 0, NULL, 0, 234 CTL_VENDOR, CTL_EOL); 235 sysctl_createv(clog, 0, NULL, NULL, 236 CTLFLAG_PERMANENT, 237 CTLTYPE_NODE, "emul", 238 SYSCTL_DESCR("Emulation settings"), 239 NULL, 0, NULL, 0, 240 CTL_EMUL, CTL_EOL); 241 } 242 243 /* 244 * this setup routine is a replacement for kern_sysctl() 245 */ 246 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 247 { 248 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 249 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 250 extern int dumponpanic; /* defined in kern/subr_prf.c */ 251 252 sysctl_createv(clog, 0, NULL, NULL, 253 CTLFLAG_PERMANENT, 254 CTLTYPE_NODE, "kern", NULL, 255 NULL, 0, NULL, 0, 256 CTL_KERN, CTL_EOL); 257 258 sysctl_createv(clog, 0, NULL, NULL, 259 CTLFLAG_PERMANENT, 260 CTLTYPE_STRING, "ostype", 261 SYSCTL_DESCR("Operating system type"), 262 NULL, 0, &ostype, 0, 263 CTL_KERN, KERN_OSTYPE, CTL_EOL); 264 sysctl_createv(clog, 0, NULL, NULL, 265 CTLFLAG_PERMANENT, 266 CTLTYPE_STRING, "osrelease", 267 SYSCTL_DESCR("Operating system release"), 268 NULL, 0, &osrelease, 0, 269 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 270 sysctl_createv(clog, 0, NULL, NULL, 271 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 272 CTLTYPE_INT, "osrevision", 273 SYSCTL_DESCR("Operating system revision"), 274 NULL, __NetBSD_Version__, NULL, 0, 275 CTL_KERN, KERN_OSREV, CTL_EOL); 276 sysctl_createv(clog, 0, NULL, NULL, 277 CTLFLAG_PERMANENT, 278 CTLTYPE_STRING, "version", 279 SYSCTL_DESCR("Kernel version"), 280 NULL, 0, &version, 0, 281 CTL_KERN, KERN_VERSION, CTL_EOL); 282 sysctl_createv(clog, 0, NULL, NULL, 283 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 284 CTLTYPE_INT, "maxvnodes", 285 SYSCTL_DESCR("Maximum number of vnodes"), 286 sysctl_kern_maxvnodes, 0, NULL, 0, 287 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 288 sysctl_createv(clog, 0, NULL, NULL, 289 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 290 CTLTYPE_INT, "maxproc", 291 SYSCTL_DESCR("Maximum number of simultaneous processes"), 292 sysctl_kern_maxproc, 0, NULL, 0, 293 CTL_KERN, KERN_MAXPROC, CTL_EOL); 294 sysctl_createv(clog, 0, NULL, NULL, 295 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 296 CTLTYPE_INT, "maxfiles", 297 SYSCTL_DESCR("Maximum number of open files"), 298 NULL, 0, &maxfiles, 0, 299 CTL_KERN, KERN_MAXFILES, CTL_EOL); 300 sysctl_createv(clog, 0, NULL, NULL, 301 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 302 CTLTYPE_INT, "argmax", 303 SYSCTL_DESCR("Maximum number of bytes of arguments to " 304 "execve(2)"), 305 NULL, ARG_MAX, NULL, 0, 306 CTL_KERN, KERN_ARGMAX, CTL_EOL); 307 sysctl_createv(clog, 0, NULL, NULL, 308 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 309 CTLTYPE_INT, "securelevel", 310 SYSCTL_DESCR("System security level"), 311 sysctl_kern_securelevel, 0, &securelevel, 0, 312 CTL_KERN, KERN_SECURELVL, CTL_EOL); 313 sysctl_createv(clog, 0, NULL, NULL, 314 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 315 CTLTYPE_STRING, "hostname", 316 SYSCTL_DESCR("System hostname"), 317 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 318 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 319 sysctl_createv(clog, 0, NULL, NULL, 320 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 321 CTLTYPE_INT, "hostid", 322 SYSCTL_DESCR("System host ID number"), 323 sysctl_kern_hostid, 0, NULL, 0, 324 CTL_KERN, KERN_HOSTID, CTL_EOL); 325 sysctl_createv(clog, 0, NULL, NULL, 326 CTLFLAG_PERMANENT, 327 CTLTYPE_STRUCT, "clockrate", 328 SYSCTL_DESCR("Kernel clock rates"), 329 sysctl_kern_clockrate, 0, NULL, 330 sizeof(struct clockinfo), 331 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 332 sysctl_createv(clog, 0, NULL, NULL, 333 CTLFLAG_PERMANENT, 334 CTLTYPE_STRUCT, "vnode", 335 SYSCTL_DESCR("System vnode table"), 336 sysctl_kern_vnode, 0, NULL, 0, 337 CTL_KERN, KERN_VNODE, CTL_EOL); 338 sysctl_createv(clog, 0, NULL, NULL, 339 CTLFLAG_PERMANENT, 340 CTLTYPE_STRUCT, "file", 341 SYSCTL_DESCR("System open file table"), 342 sysctl_kern_file, 0, NULL, 0, 343 CTL_KERN, KERN_FILE, CTL_EOL); 344 #ifndef GPROF 345 sysctl_createv(clog, 0, NULL, NULL, 346 CTLFLAG_PERMANENT, 347 CTLTYPE_NODE, "profiling", 348 SYSCTL_DESCR("Profiling information (not available)"), 349 sysctl_notavail, 0, NULL, 0, 350 CTL_KERN, KERN_PROF, CTL_EOL); 351 #endif 352 sysctl_createv(clog, 0, NULL, NULL, 353 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 354 CTLTYPE_INT, "posix1version", 355 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 356 "with which the operating system attempts " 357 "to comply"), 358 NULL, _POSIX_VERSION, NULL, 0, 359 CTL_KERN, KERN_POSIX1, CTL_EOL); 360 sysctl_createv(clog, 0, NULL, NULL, 361 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 362 CTLTYPE_INT, "ngroups", 363 SYSCTL_DESCR("Maximum number of supplemental groups"), 364 NULL, NGROUPS_MAX, NULL, 0, 365 CTL_KERN, KERN_NGROUPS, CTL_EOL); 366 sysctl_createv(clog, 0, NULL, NULL, 367 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 368 CTLTYPE_INT, "job_control", 369 SYSCTL_DESCR("Whether job control is available"), 370 NULL, 1, NULL, 0, 371 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 372 sysctl_createv(clog, 0, NULL, NULL, 373 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 374 CTLTYPE_INT, "saved_ids", 375 SYSCTL_DESCR("Whether saved set-group/user ID is " 376 "available"), NULL, 377 #ifdef _POSIX_SAVED_IDS 378 1, 379 #else /* _POSIX_SAVED_IDS */ 380 0, 381 #endif /* _POSIX_SAVED_IDS */ 382 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 383 sysctl_createv(clog, 0, NULL, NULL, 384 CTLFLAG_PERMANENT, 385 CTLTYPE_STRUCT, "boottime", 386 SYSCTL_DESCR("System boot time"), 387 NULL, 0, &boottime, sizeof(boottime), 388 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 389 sysctl_createv(clog, 0, NULL, NULL, 390 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 391 CTLTYPE_STRING, "domainname", 392 SYSCTL_DESCR("YP domain name"), 393 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 394 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 395 sysctl_createv(clog, 0, NULL, NULL, 396 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 397 CTLTYPE_INT, "maxpartitions", 398 SYSCTL_DESCR("Maximum number of partitions allowed per " 399 "disk"), 400 NULL, MAXPARTITIONS, NULL, 0, 401 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 402 sysctl_createv(clog, 0, NULL, NULL, 403 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 404 CTLTYPE_INT, "rawpartition", 405 SYSCTL_DESCR("Raw partition of a disk"), 406 NULL, RAW_PART, NULL, 0, 407 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 408 sysctl_createv(clog, 0, NULL, NULL, 409 CTLFLAG_PERMANENT, 410 CTLTYPE_STRUCT, "timex", NULL, 411 sysctl_notavail, 0, NULL, 0, 412 CTL_KERN, KERN_TIMEX, CTL_EOL); 413 sysctl_createv(clog, 0, NULL, NULL, 414 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 415 CTLTYPE_INT, "autonicetime", 416 SYSCTL_DESCR("CPU clock seconds before non-root " 417 "process priority is lowered"), 418 sysctl_kern_autonice, 0, &autonicetime, 0, 419 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 420 sysctl_createv(clog, 0, NULL, NULL, 421 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 422 CTLTYPE_INT, "autoniceval", 423 SYSCTL_DESCR("Automatic reniced non-root process " 424 "priority"), 425 sysctl_kern_autonice, 0, &autoniceval, 0, 426 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 427 sysctl_createv(clog, 0, NULL, NULL, 428 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 429 CTLTYPE_INT, "rtc_offset", 430 SYSCTL_DESCR("Offset of real time clock from UTC in " 431 "minutes"), 432 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 433 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 434 sysctl_createv(clog, 0, NULL, NULL, 435 CTLFLAG_PERMANENT, 436 CTLTYPE_STRING, "root_device", 437 SYSCTL_DESCR("Name of the root device"), 438 sysctl_root_device, 0, NULL, 0, 439 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 440 sysctl_createv(clog, 0, NULL, NULL, 441 CTLFLAG_PERMANENT, 442 CTLTYPE_INT, "msgbufsize", 443 SYSCTL_DESCR("Size of the kernel message buffer"), 444 sysctl_msgbuf, 0, NULL, 0, 445 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 446 sysctl_createv(clog, 0, NULL, NULL, 447 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 448 CTLTYPE_INT, "fsync", 449 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 450 "Synchronization Option is available on " 451 "this system"), 452 NULL, 1, NULL, 0, 453 CTL_KERN, KERN_FSYNC, CTL_EOL); 454 sysctl_createv(clog, 0, NULL, NULL, 455 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 456 CTLTYPE_INT, "sysvmsg", 457 SYSCTL_DESCR("System V style message support available"), 458 NULL, 459 #ifdef SYSVMSG 460 1, 461 #else /* SYSVMSG */ 462 0, 463 #endif /* SYSVMSG */ 464 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 465 sysctl_createv(clog, 0, NULL, NULL, 466 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 467 CTLTYPE_INT, "sysvsem", 468 SYSCTL_DESCR("System V style semaphore support " 469 "available"), NULL, 470 #ifdef SYSVSEM 471 1, 472 #else /* SYSVSEM */ 473 0, 474 #endif /* SYSVSEM */ 475 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 476 sysctl_createv(clog, 0, NULL, NULL, 477 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 478 CTLTYPE_INT, "sysvshm", 479 SYSCTL_DESCR("System V style shared memory support " 480 "available"), NULL, 481 #ifdef SYSVSHM 482 1, 483 #else /* SYSVSHM */ 484 0, 485 #endif /* SYSVSHM */ 486 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 487 sysctl_createv(clog, 0, NULL, NULL, 488 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 489 CTLTYPE_INT, "synchronized_io", 490 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 491 "I/O Option is available on this system"), 492 NULL, 1, NULL, 0, 493 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 494 sysctl_createv(clog, 0, NULL, NULL, 495 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 496 CTLTYPE_INT, "iov_max", 497 SYSCTL_DESCR("Maximum number of iovec structures per " 498 "process"), 499 NULL, IOV_MAX, NULL, 0, 500 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 501 sysctl_createv(clog, 0, NULL, NULL, 502 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 503 CTLTYPE_INT, "mapped_files", 504 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 505 "Files Option is available on this system"), 506 NULL, 1, NULL, 0, 507 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 508 sysctl_createv(clog, 0, NULL, NULL, 509 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 510 CTLTYPE_INT, "memlock", 511 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 512 "Locking Option is available on this " 513 "system"), 514 NULL, 1, NULL, 0, 515 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 516 sysctl_createv(clog, 0, NULL, NULL, 517 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 518 CTLTYPE_INT, "memlock_range", 519 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 520 "Locking Option is available on this " 521 "system"), 522 NULL, 1, NULL, 0, 523 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 524 sysctl_createv(clog, 0, NULL, NULL, 525 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 526 CTLTYPE_INT, "memory_protection", 527 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 528 "Protection Option is available on this " 529 "system"), 530 NULL, 1, NULL, 0, 531 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 532 sysctl_createv(clog, 0, NULL, NULL, 533 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 534 CTLTYPE_INT, "login_name_max", 535 SYSCTL_DESCR("Maximum login name length"), 536 NULL, LOGIN_NAME_MAX, NULL, 0, 537 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 538 sysctl_createv(clog, 0, NULL, NULL, 539 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 540 CTLTYPE_STRING, "defcorename", 541 SYSCTL_DESCR("Default core file name"), 542 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 543 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 544 sysctl_createv(clog, 0, NULL, NULL, 545 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 546 CTLTYPE_INT, "logsigexit", 547 SYSCTL_DESCR("Log process exit when caused by signals"), 548 NULL, 0, &kern_logsigexit, 0, 549 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 550 sysctl_createv(clog, 0, NULL, NULL, 551 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 552 CTLTYPE_INT, "fscale", 553 SYSCTL_DESCR("Kernel fixed-point scale factor"), 554 NULL, FSCALE, NULL, 0, 555 CTL_KERN, KERN_FSCALE, CTL_EOL); 556 sysctl_createv(clog, 0, NULL, NULL, 557 CTLFLAG_PERMANENT, 558 CTLTYPE_INT, "ccpu", 559 SYSCTL_DESCR("Scheduler exponential decay value"), 560 NULL, 0, &ccpu, 0, 561 CTL_KERN, KERN_CCPU, CTL_EOL); 562 sysctl_createv(clog, 0, NULL, NULL, 563 CTLFLAG_PERMANENT, 564 CTLTYPE_STRUCT, "cp_time", 565 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 566 sysctl_kern_cptime, 0, NULL, 0, 567 CTL_KERN, KERN_CP_TIME, CTL_EOL); 568 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 569 sysctl_createv(clog, 0, NULL, NULL, 570 CTLFLAG_PERMANENT, 571 CTLTYPE_STRUCT, "sysvipc_info", 572 SYSCTL_DESCR("System V style IPC information"), 573 sysctl_kern_sysvipc, 0, NULL, 0, 574 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 575 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 576 sysctl_createv(clog, 0, NULL, NULL, 577 CTLFLAG_PERMANENT, 578 CTLTYPE_INT, "msgbuf", 579 SYSCTL_DESCR("Kernel message buffer"), 580 sysctl_msgbuf, 0, NULL, 0, 581 CTL_KERN, KERN_MSGBUF, CTL_EOL); 582 sysctl_createv(clog, 0, NULL, NULL, 583 CTLFLAG_PERMANENT, 584 CTLTYPE_STRUCT, "consdev", 585 SYSCTL_DESCR("Console device"), 586 sysctl_consdev, 0, NULL, sizeof(dev_t), 587 CTL_KERN, KERN_CONSDEV, CTL_EOL); 588 #if NPTY > 0 589 sysctl_createv(clog, 0, NULL, NULL, 590 CTLFLAG_PERMANENT, 591 CTLTYPE_INT, "maxptys", 592 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 593 sysctl_kern_maxptys, 0, NULL, 0, 594 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 595 #endif /* NPTY > 0 */ 596 sysctl_createv(clog, 0, NULL, NULL, 597 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 598 CTLTYPE_INT, "maxphys", 599 SYSCTL_DESCR("Maximum raw I/O transfer size"), 600 NULL, MAXPHYS, NULL, 0, 601 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 602 sysctl_createv(clog, 0, NULL, NULL, 603 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 604 CTLTYPE_INT, "sbmax", 605 SYSCTL_DESCR("Maximum socket buffer size"), 606 sysctl_kern_sbmax, 0, NULL, 0, 607 CTL_KERN, KERN_SBMAX, CTL_EOL); 608 sysctl_createv(clog, 0, NULL, NULL, 609 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 610 CTLTYPE_INT, "monotonic_clock", 611 SYSCTL_DESCR("Implementation version of the POSIX " 612 "1003.1b Monotonic Clock Option"), 613 /* XXX _POSIX_VERSION */ 614 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 615 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 616 sysctl_createv(clog, 0, NULL, NULL, 617 CTLFLAG_PERMANENT, 618 CTLTYPE_INT, "urandom", 619 SYSCTL_DESCR("Random integer value"), 620 sysctl_kern_urnd, 0, NULL, 0, 621 CTL_KERN, KERN_URND, CTL_EOL); 622 sysctl_createv(clog, 0, NULL, NULL, 623 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 624 CTLTYPE_INT, "labelsector", 625 SYSCTL_DESCR("Sector number containing the disklabel"), 626 NULL, LABELSECTOR, NULL, 0, 627 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 628 sysctl_createv(clog, 0, NULL, NULL, 629 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 630 CTLTYPE_INT, "labeloffset", 631 SYSCTL_DESCR("Offset of the disklabel within the " 632 "sector"), 633 NULL, LABELOFFSET, NULL, 0, 634 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 635 sysctl_createv(clog, 0, NULL, NULL, 636 CTLFLAG_PERMANENT, 637 CTLTYPE_NODE, "lwp", 638 SYSCTL_DESCR("System-wide LWP information"), 639 sysctl_kern_lwp, 0, NULL, 0, 640 CTL_KERN, KERN_LWP, CTL_EOL); 641 sysctl_createv(clog, 0, NULL, NULL, 642 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 643 CTLTYPE_INT, "forkfsleep", 644 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 645 "to process limits"), 646 sysctl_kern_forkfsleep, 0, NULL, 0, 647 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 648 sysctl_createv(clog, 0, NULL, NULL, 649 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 650 CTLTYPE_INT, "posix_threads", 651 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 652 "Threads option to which the system " 653 "attempts to conform"), 654 /* XXX _POSIX_VERSION */ 655 NULL, _POSIX_THREADS, NULL, 0, 656 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 657 sysctl_createv(clog, 0, NULL, NULL, 658 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 659 CTLTYPE_INT, "posix_semaphores", 660 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 661 "Semaphores option to which the system " 662 "attempts to conform"), NULL, 663 #ifdef P1003_1B_SEMAPHORE 664 200112, 665 #else /* P1003_1B_SEMAPHORE */ 666 0, 667 #endif /* P1003_1B_SEMAPHORE */ 668 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 669 sysctl_createv(clog, 0, NULL, NULL, 670 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 671 CTLTYPE_INT, "posix_barriers", 672 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 673 "Barriers option to which the system " 674 "attempts to conform"), 675 /* XXX _POSIX_VERSION */ 676 NULL, _POSIX_BARRIERS, NULL, 0, 677 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 678 sysctl_createv(clog, 0, NULL, NULL, 679 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 680 CTLTYPE_INT, "posix_timers", 681 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 682 "Timers option to which the system " 683 "attempts to conform"), 684 /* XXX _POSIX_VERSION */ 685 NULL, _POSIX_TIMERS, NULL, 0, 686 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 687 sysctl_createv(clog, 0, NULL, NULL, 688 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 689 CTLTYPE_INT, "posix_spin_locks", 690 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 691 "Locks option to which the system attempts " 692 "to conform"), 693 /* XXX _POSIX_VERSION */ 694 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 695 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 696 sysctl_createv(clog, 0, NULL, NULL, 697 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 698 CTLTYPE_INT, "posix_reader_writer_locks", 699 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 700 "Read-Write Locks option to which the " 701 "system attempts to conform"), 702 /* XXX _POSIX_VERSION */ 703 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 704 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 705 sysctl_createv(clog, 0, NULL, NULL, 706 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 707 CTLTYPE_INT, "dump_on_panic", 708 SYSCTL_DESCR("Perform a crash dump on system panic"), 709 NULL, 0, &dumponpanic, 0, 710 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 711 sysctl_createv(clog, 0, NULL, NULL, 712 CTLFLAG_PERMANENT, 713 CTLTYPE_INT, "root_partition", 714 SYSCTL_DESCR("Root partition on the root device"), 715 sysctl_kern_root_partition, 0, NULL, 0, 716 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 717 sysctl_createv(clog, 0, NULL, NULL, 718 CTLFLAG_PERMANENT, 719 CTLTYPE_STRUCT, "drivers", 720 SYSCTL_DESCR("List of all drivers with block and " 721 "character device numbers"), 722 sysctl_kern_drivers, 0, NULL, 0, 723 CTL_KERN, KERN_DRIVERS, CTL_EOL); 724 sysctl_createv(clog, 0, NULL, NULL, 725 CTLFLAG_PERMANENT, 726 CTLTYPE_STRUCT, "file2", 727 SYSCTL_DESCR("System open file table"), 728 sysctl_kern_file2, 0, NULL, 0, 729 CTL_KERN, KERN_FILE2, CTL_EOL); 730 } 731 732 SYSCTL_SETUP(sysctl_kern_proc_setup, 733 "sysctl kern.proc/proc2/proc_args subtree setup") 734 { 735 736 sysctl_createv(clog, 0, NULL, NULL, 737 CTLFLAG_PERMANENT, 738 CTLTYPE_NODE, "kern", NULL, 739 NULL, 0, NULL, 0, 740 CTL_KERN, CTL_EOL); 741 742 sysctl_createv(clog, 0, NULL, NULL, 743 CTLFLAG_PERMANENT, 744 CTLTYPE_NODE, "proc", 745 SYSCTL_DESCR("System-wide process information"), 746 sysctl_doeproc, 0, NULL, 0, 747 CTL_KERN, KERN_PROC, CTL_EOL); 748 sysctl_createv(clog, 0, NULL, NULL, 749 CTLFLAG_PERMANENT, 750 CTLTYPE_NODE, "proc2", 751 SYSCTL_DESCR("Machine-independent process information"), 752 sysctl_doeproc, 0, NULL, 0, 753 CTL_KERN, KERN_PROC2, CTL_EOL); 754 sysctl_createv(clog, 0, NULL, NULL, 755 CTLFLAG_PERMANENT, 756 CTLTYPE_NODE, "proc_args", 757 SYSCTL_DESCR("Process argument information"), 758 sysctl_kern_proc_args, 0, NULL, 0, 759 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 760 761 /* 762 "nodes" under these: 763 764 KERN_PROC_ALL 765 KERN_PROC_PID pid 766 KERN_PROC_PGRP pgrp 767 KERN_PROC_SESSION sess 768 KERN_PROC_TTY tty 769 KERN_PROC_UID uid 770 KERN_PROC_RUID uid 771 KERN_PROC_GID gid 772 KERN_PROC_RGID gid 773 774 all in all, probably not worth the effort... 775 */ 776 } 777 778 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 779 { 780 u_int u; 781 u_quad_t q; 782 783 sysctl_createv(clog, 0, NULL, NULL, 784 CTLFLAG_PERMANENT, 785 CTLTYPE_NODE, "hw", NULL, 786 NULL, 0, NULL, 0, 787 CTL_HW, CTL_EOL); 788 789 sysctl_createv(clog, 0, NULL, NULL, 790 CTLFLAG_PERMANENT, 791 CTLTYPE_STRING, "machine", 792 SYSCTL_DESCR("Machine class"), 793 NULL, 0, machine, 0, 794 CTL_HW, HW_MACHINE, CTL_EOL); 795 sysctl_createv(clog, 0, NULL, NULL, 796 CTLFLAG_PERMANENT, 797 CTLTYPE_STRING, "model", 798 SYSCTL_DESCR("Machine model"), 799 NULL, 0, cpu_model, 0, 800 CTL_HW, HW_MODEL, CTL_EOL); 801 sysctl_createv(clog, 0, NULL, NULL, 802 CTLFLAG_PERMANENT, 803 CTLTYPE_INT, "ncpu", 804 SYSCTL_DESCR("Number of active CPUs"), 805 sysctl_hw_ncpu, 0, NULL, 0, 806 CTL_HW, HW_NCPU, CTL_EOL); 807 sysctl_createv(clog, 0, NULL, NULL, 808 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 809 CTLTYPE_INT, "byteorder", 810 SYSCTL_DESCR("System byte order"), 811 NULL, BYTE_ORDER, NULL, 0, 812 CTL_HW, HW_BYTEORDER, CTL_EOL); 813 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 814 UINT_MAX : physmem * PAGE_SIZE; 815 sysctl_createv(clog, 0, NULL, NULL, 816 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 817 CTLTYPE_INT, "physmem", 818 SYSCTL_DESCR("Bytes of physical memory"), 819 NULL, u, NULL, 0, 820 CTL_HW, HW_PHYSMEM, CTL_EOL); 821 sysctl_createv(clog, 0, NULL, NULL, 822 CTLFLAG_PERMANENT, 823 CTLTYPE_INT, "usermem", 824 SYSCTL_DESCR("Bytes of non-kernel memory"), 825 sysctl_hw_usermem, 0, NULL, 0, 826 CTL_HW, HW_USERMEM, CTL_EOL); 827 sysctl_createv(clog, 0, NULL, NULL, 828 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 829 CTLTYPE_INT, "pagesize", 830 SYSCTL_DESCR("Software page size"), 831 NULL, PAGE_SIZE, NULL, 0, 832 CTL_HW, HW_PAGESIZE, CTL_EOL); 833 sysctl_createv(clog, 0, NULL, NULL, 834 CTLFLAG_PERMANENT, 835 CTLTYPE_STRING, "disknames", 836 SYSCTL_DESCR("List of disk devices present"), 837 sysctl_hw_disknames, 0, NULL, 0, 838 CTL_HW, HW_DISKNAMES, CTL_EOL); 839 sysctl_createv(clog, 0, NULL, NULL, 840 CTLFLAG_PERMANENT, 841 CTLTYPE_STRUCT, "diskstats", 842 SYSCTL_DESCR("Statistics on disk operation"), 843 sysctl_hw_diskstats, 0, NULL, 0, 844 CTL_HW, HW_DISKSTATS, CTL_EOL); 845 sysctl_createv(clog, 0, NULL, NULL, 846 CTLFLAG_PERMANENT, 847 CTLTYPE_STRING, "machine_arch", 848 SYSCTL_DESCR("Machine CPU class"), 849 NULL, 0, machine_arch, 0, 850 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 851 sysctl_createv(clog, 0, NULL, NULL, 852 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 853 CTLTYPE_INT, "alignbytes", 854 SYSCTL_DESCR("Alignment constraint for all possible " 855 "data types"), 856 NULL, ALIGNBYTES, NULL, 0, 857 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 858 sysctl_createv(clog, 0, NULL, NULL, 859 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 860 CTLTYPE_STRING, "cnmagic", 861 SYSCTL_DESCR("Console magic key sequence"), 862 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 863 CTL_HW, HW_CNMAGIC, CTL_EOL); 864 q = (u_quad_t)physmem * PAGE_SIZE; 865 sysctl_createv(clog, 0, NULL, NULL, 866 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 867 CTLTYPE_QUAD, "physmem64", 868 SYSCTL_DESCR("Bytes of physical memory"), 869 NULL, q, NULL, 0, 870 CTL_HW, HW_PHYSMEM64, CTL_EOL); 871 sysctl_createv(clog, 0, NULL, NULL, 872 CTLFLAG_PERMANENT, 873 CTLTYPE_QUAD, "usermem64", 874 SYSCTL_DESCR("Bytes of non-kernel memory"), 875 sysctl_hw_usermem, 0, NULL, 0, 876 CTL_HW, HW_USERMEM64, CTL_EOL); 877 } 878 879 #ifdef DEBUG 880 /* 881 * Debugging related system variables. 882 */ 883 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 884 struct ctldebug debug5, debug6, debug7, debug8, debug9; 885 struct ctldebug debug10, debug11, debug12, debug13, debug14; 886 struct ctldebug debug15, debug16, debug17, debug18, debug19; 887 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 888 &debug0, &debug1, &debug2, &debug3, &debug4, 889 &debug5, &debug6, &debug7, &debug8, &debug9, 890 &debug10, &debug11, &debug12, &debug13, &debug14, 891 &debug15, &debug16, &debug17, &debug18, &debug19, 892 }; 893 894 /* 895 * this setup routine is a replacement for debug_sysctl() 896 * 897 * note that it creates several nodes per defined debug variable 898 */ 899 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 900 { 901 struct ctldebug *cdp; 902 char nodename[20]; 903 int i; 904 905 /* 906 * two ways here: 907 * 908 * the "old" way (debug.name -> value) which was emulated by 909 * the sysctl(8) binary 910 * 911 * the new way, which the sysctl(8) binary was actually using 912 913 node debug 914 node debug.0 915 string debug.0.name 916 int debug.0.value 917 int debug.name 918 919 */ 920 921 sysctl_createv(clog, 0, NULL, NULL, 922 CTLFLAG_PERMANENT, 923 CTLTYPE_NODE, "debug", NULL, 924 NULL, 0, NULL, 0, 925 CTL_DEBUG, CTL_EOL); 926 927 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 928 cdp = debugvars[i]; 929 if (cdp->debugname == NULL || cdp->debugvar == NULL) 930 continue; 931 932 snprintf(nodename, sizeof(nodename), "debug%d", i); 933 sysctl_createv(clog, 0, NULL, NULL, 934 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 935 CTLTYPE_NODE, nodename, NULL, 936 NULL, 0, NULL, 0, 937 CTL_DEBUG, i, CTL_EOL); 938 sysctl_createv(clog, 0, NULL, NULL, 939 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 940 CTLTYPE_STRING, "name", NULL, 941 NULL, 0, cdp->debugname, 0, 942 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 943 sysctl_createv(clog, 0, NULL, NULL, 944 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 945 CTLTYPE_INT, "value", NULL, 946 NULL, 0, cdp->debugvar, 0, 947 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 948 sysctl_createv(clog, 0, NULL, NULL, 949 CTLFLAG_PERMANENT, 950 CTLTYPE_INT, cdp->debugname, NULL, 951 NULL, 0, cdp->debugvar, 0, 952 CTL_DEBUG, CTL_CREATE, CTL_EOL); 953 } 954 } 955 #endif /* DEBUG */ 956 957 /* 958 * ******************************************************************** 959 * section 2: private node-specific helper routines. 960 * ******************************************************************** 961 */ 962 963 /* 964 * sysctl helper routine for kern.maxvnodes. drain vnodes if 965 * new value is lower than desiredvnodes and then calls reinit 966 * routines that needs to adjust to the new value. 967 */ 968 static int 969 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 970 { 971 int error, new_vnodes, old_vnodes; 972 struct sysctlnode node; 973 974 new_vnodes = desiredvnodes; 975 node = *rnode; 976 node.sysctl_data = &new_vnodes; 977 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 978 if (error || newp == NULL) 979 return (error); 980 981 old_vnodes = desiredvnodes; 982 desiredvnodes = new_vnodes; 983 if (new_vnodes < old_vnodes) { 984 error = vfs_drainvnodes(new_vnodes, l->l_proc); 985 if (error) { 986 desiredvnodes = old_vnodes; 987 return (error); 988 } 989 } 990 vfs_reinit(); 991 nchreinit(); 992 993 return (0); 994 } 995 996 /* 997 * sysctl helper routine for rtc_offset - set time after changes 998 */ 999 static int 1000 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1001 { 1002 struct timeval tv, delta; 1003 int s, error, new_rtc_offset; 1004 struct sysctlnode node; 1005 1006 new_rtc_offset = rtc_offset; 1007 node = *rnode; 1008 node.sysctl_data = &new_rtc_offset; 1009 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1010 if (error || newp == NULL) 1011 return (error); 1012 1013 if (securelevel > 0) 1014 return (EPERM); 1015 if (rtc_offset == new_rtc_offset) 1016 return (0); 1017 1018 /* if we change the offset, adjust the time */ 1019 s = splclock(); 1020 tv = time; 1021 splx(s); 1022 delta.tv_sec = 60*(new_rtc_offset - rtc_offset); 1023 delta.tv_usec = 0; 1024 timeradd(&tv, &delta, &tv); 1025 rtc_offset = new_rtc_offset; 1026 settime(&tv); 1027 1028 return (0); 1029 } 1030 1031 /* 1032 * sysctl helper routine for kern.maxvnodes. ensures that the new 1033 * values are not too low or too high. 1034 */ 1035 static int 1036 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1037 { 1038 int error, nmaxproc; 1039 struct sysctlnode node; 1040 1041 nmaxproc = maxproc; 1042 node = *rnode; 1043 node.sysctl_data = &nmaxproc; 1044 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1045 if (error || newp == NULL) 1046 return (error); 1047 1048 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1049 return (EINVAL); 1050 #ifdef __HAVE_CPU_MAXPROC 1051 if (nmaxproc > cpu_maxproc()) 1052 return (EINVAL); 1053 #endif 1054 maxproc = nmaxproc; 1055 1056 return (0); 1057 } 1058 1059 /* 1060 * sysctl helper routine for kern.securelevel. ensures that the value 1061 * only rises unless the caller has pid 1 (assumed to be init). 1062 */ 1063 static int 1064 sysctl_kern_securelevel(SYSCTLFN_ARGS) 1065 { 1066 int newsecurelevel, error; 1067 struct sysctlnode node; 1068 1069 newsecurelevel = securelevel; 1070 node = *rnode; 1071 node.sysctl_data = &newsecurelevel; 1072 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1073 if (error || newp == NULL) 1074 return (error); 1075 1076 if (newsecurelevel < securelevel && l && l->l_proc->p_pid != 1) 1077 return (EPERM); 1078 securelevel = newsecurelevel; 1079 1080 return (error); 1081 } 1082 1083 /* 1084 * sysctl helper function for kern.hostid. the hostid is a long, but 1085 * we export it as an int, so we need to give it a little help. 1086 */ 1087 static int 1088 sysctl_kern_hostid(SYSCTLFN_ARGS) 1089 { 1090 int error, inthostid; 1091 struct sysctlnode node; 1092 1093 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1094 node = *rnode; 1095 node.sysctl_data = &inthostid; 1096 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1097 if (error || newp == NULL) 1098 return (error); 1099 1100 hostid = (unsigned)inthostid; 1101 1102 return (0); 1103 } 1104 1105 /* 1106 * sysctl helper function for kern.hostname and kern.domainnname. 1107 * resets the relevant recorded length when the underlying name is 1108 * changed. 1109 */ 1110 static int 1111 sysctl_setlen(SYSCTLFN_ARGS) 1112 { 1113 int error; 1114 1115 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1116 if (error || newp == NULL) 1117 return (error); 1118 1119 switch (rnode->sysctl_num) { 1120 case KERN_HOSTNAME: 1121 hostnamelen = strlen((const char*)rnode->sysctl_data); 1122 break; 1123 case KERN_DOMAINNAME: 1124 domainnamelen = strlen((const char*)rnode->sysctl_data); 1125 break; 1126 } 1127 1128 return (0); 1129 } 1130 1131 /* 1132 * sysctl helper routine for kern.clockrate. assembles a struct on 1133 * the fly to be returned to the caller. 1134 */ 1135 static int 1136 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1137 { 1138 struct clockinfo clkinfo; 1139 struct sysctlnode node; 1140 1141 clkinfo.tick = tick; 1142 clkinfo.tickadj = tickadj; 1143 clkinfo.hz = hz; 1144 clkinfo.profhz = profhz; 1145 clkinfo.stathz = stathz ? stathz : hz; 1146 1147 node = *rnode; 1148 node.sysctl_data = &clkinfo; 1149 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1150 } 1151 1152 1153 /* 1154 * sysctl helper routine for kern.file pseudo-subtree. 1155 */ 1156 static int 1157 sysctl_kern_file(SYSCTLFN_ARGS) 1158 { 1159 int error; 1160 size_t buflen; 1161 struct file *fp; 1162 char *start, *where; 1163 1164 start = where = oldp; 1165 buflen = *oldlenp; 1166 if (where == NULL) { 1167 /* 1168 * overestimate by 10 files 1169 */ 1170 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1171 return (0); 1172 } 1173 1174 /* 1175 * first copyout filehead 1176 */ 1177 if (buflen < sizeof(filehead)) { 1178 *oldlenp = 0; 1179 return (0); 1180 } 1181 error = copyout(&filehead, where, sizeof(filehead)); 1182 if (error) 1183 return (error); 1184 buflen -= sizeof(filehead); 1185 where += sizeof(filehead); 1186 1187 /* 1188 * followed by an array of file structures 1189 */ 1190 LIST_FOREACH(fp, &filehead, f_list) { 1191 if (buflen < sizeof(struct file)) { 1192 *oldlenp = where - start; 1193 return (ENOMEM); 1194 } 1195 error = copyout(fp, where, sizeof(struct file)); 1196 if (error) 1197 return (error); 1198 buflen -= sizeof(struct file); 1199 where += sizeof(struct file); 1200 } 1201 *oldlenp = where - start; 1202 return (0); 1203 } 1204 1205 /* 1206 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1207 * asserts that the assigned value is in the correct range. 1208 */ 1209 static int 1210 sysctl_kern_autonice(SYSCTLFN_ARGS) 1211 { 1212 int error, t = 0; 1213 struct sysctlnode node; 1214 1215 node = *rnode; 1216 t = *(int*)node.sysctl_data; 1217 node.sysctl_data = &t; 1218 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1219 if (error || newp == NULL) 1220 return (error); 1221 1222 switch (node.sysctl_num) { 1223 case KERN_AUTONICETIME: 1224 if (t >= 0) 1225 autonicetime = t; 1226 break; 1227 case KERN_AUTONICEVAL: 1228 if (t < PRIO_MIN) 1229 t = PRIO_MIN; 1230 else if (t > PRIO_MAX) 1231 t = PRIO_MAX; 1232 autoniceval = t; 1233 break; 1234 } 1235 1236 return (0); 1237 } 1238 1239 /* 1240 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1241 * former it merely checks the message buffer is set up. for the latter, 1242 * it also copies out the data if necessary. 1243 */ 1244 static int 1245 sysctl_msgbuf(SYSCTLFN_ARGS) 1246 { 1247 char *where = oldp; 1248 size_t len, maxlen; 1249 long beg, end; 1250 int error; 1251 1252 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1253 msgbufenabled = 0; 1254 return (ENXIO); 1255 } 1256 1257 switch (rnode->sysctl_num) { 1258 case KERN_MSGBUFSIZE: { 1259 struct sysctlnode node = *rnode; 1260 int msg_bufs = (int)msgbufp->msg_bufs; 1261 node.sysctl_data = &msg_bufs; 1262 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1263 } 1264 case KERN_MSGBUF: 1265 break; 1266 default: 1267 return (EOPNOTSUPP); 1268 } 1269 1270 if (newp != NULL) 1271 return (EPERM); 1272 1273 if (oldp == NULL) { 1274 /* always return full buffer size */ 1275 *oldlenp = msgbufp->msg_bufs; 1276 return (0); 1277 } 1278 1279 error = 0; 1280 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1281 1282 /* 1283 * First, copy from the write pointer to the end of 1284 * message buffer. 1285 */ 1286 beg = msgbufp->msg_bufx; 1287 end = msgbufp->msg_bufs; 1288 while (maxlen > 0) { 1289 len = MIN(end - beg, maxlen); 1290 if (len == 0) 1291 break; 1292 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1293 if (error) 1294 break; 1295 where += len; 1296 maxlen -= len; 1297 1298 /* 1299 * ... then, copy from the beginning of message buffer to 1300 * the write pointer. 1301 */ 1302 beg = 0; 1303 end = msgbufp->msg_bufx; 1304 } 1305 1306 return (error); 1307 } 1308 1309 /* 1310 * sysctl helper routine for kern.defcorename. in the case of a new 1311 * string being assigned, check that it's not a zero-length string. 1312 * (XXX the check in -current doesn't work, but do we really care?) 1313 */ 1314 static int 1315 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1316 { 1317 int error; 1318 char newcorename[MAXPATHLEN]; 1319 struct sysctlnode node; 1320 1321 node = *rnode; 1322 node.sysctl_data = &newcorename[0]; 1323 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1324 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1325 if (error || newp == NULL) 1326 return (error); 1327 1328 /* 1329 * when sysctl_lookup() deals with a string, it's guaranteed 1330 * to come back nul terminated. so there. :) 1331 */ 1332 if (strlen(newcorename) == 0) 1333 return (EINVAL); 1334 1335 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1336 1337 return (0); 1338 } 1339 1340 /* 1341 * sysctl helper routine for kern.cp_time node. adds up cpu time 1342 * across all cpus. 1343 */ 1344 static int 1345 sysctl_kern_cptime(SYSCTLFN_ARGS) 1346 { 1347 struct sysctlnode node = *rnode; 1348 1349 #ifndef MULTIPROCESSOR 1350 1351 if (namelen == 1) { 1352 if (name[0] != 0) 1353 return (ENOENT); 1354 /* 1355 * you're allowed to ask for the zero'th processor 1356 */ 1357 name++; 1358 namelen--; 1359 } 1360 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1361 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1362 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1363 1364 #else /* MULTIPROCESSOR */ 1365 1366 u_int64_t *cp_time = NULL; 1367 int error, n = sysctl_ncpus(), i; 1368 struct cpu_info *ci; 1369 CPU_INFO_ITERATOR cii; 1370 1371 /* 1372 * if you specifically pass a buffer that is the size of the 1373 * sum, or if you are probing for the size, you get the "sum" 1374 * of cp_time (and the size thereof) across all processors. 1375 * 1376 * alternately, you can pass an additional mib number and get 1377 * cp_time for that particular processor. 1378 */ 1379 switch (namelen) { 1380 case 0: 1381 if (*oldlenp == sizeof(u_int64_t) * CPUSTATES || oldp == NULL) { 1382 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1383 n = -1; /* SUM */ 1384 } 1385 else { 1386 node.sysctl_size = n * sizeof(u_int64_t) * CPUSTATES; 1387 n = -2; /* ALL */ 1388 } 1389 break; 1390 case 1: 1391 if (name[0] < 0 || name[0] >= n) 1392 return (ENOENT); /* ENOSUCHPROCESSOR */ 1393 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1394 n = name[0]; 1395 /* 1396 * adjust these so that sysctl_lookup() will be happy 1397 */ 1398 name++; 1399 namelen--; 1400 break; 1401 default: 1402 return (EINVAL); 1403 } 1404 1405 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1406 if (cp_time == NULL) 1407 return (ENOMEM); 1408 node.sysctl_data = cp_time; 1409 memset(cp_time, 0, node.sysctl_size); 1410 1411 for (CPU_INFO_FOREACH(cii, ci)) { 1412 if (n <= 0) 1413 for (i = 0; i < CPUSTATES; i++) 1414 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1415 /* 1416 * if a specific processor was requested and we just 1417 * did it, we're done here 1418 */ 1419 if (n == 0) 1420 break; 1421 /* 1422 * if doing "all", skip to next cp_time set for next processor 1423 */ 1424 if (n == -2) 1425 cp_time += CPUSTATES; 1426 /* 1427 * if we're doing a specific processor, we're one 1428 * processor closer 1429 */ 1430 if (n > 0) 1431 n--; 1432 } 1433 1434 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1435 free(node.sysctl_data, M_TEMP); 1436 return (error); 1437 1438 #endif /* MULTIPROCESSOR */ 1439 } 1440 1441 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1442 /* 1443 * sysctl helper routine for kern.sysvipc_info subtree. 1444 */ 1445 1446 #define FILL_PERM(src, dst) do { \ 1447 (dst)._key = (src)._key; \ 1448 (dst).uid = (src).uid; \ 1449 (dst).gid = (src).gid; \ 1450 (dst).cuid = (src).cuid; \ 1451 (dst).cgid = (src).cgid; \ 1452 (dst).mode = (src).mode; \ 1453 (dst)._seq = (src)._seq; \ 1454 } while (/*CONSTCOND*/ 0); 1455 #define FILL_MSG(src, dst) do { \ 1456 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1457 (dst).msg_qnum = (src).msg_qnum; \ 1458 (dst).msg_qbytes = (src).msg_qbytes; \ 1459 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1460 (dst).msg_lspid = (src).msg_lspid; \ 1461 (dst).msg_lrpid = (src).msg_lrpid; \ 1462 (dst).msg_stime = (src).msg_stime; \ 1463 (dst).msg_rtime = (src).msg_rtime; \ 1464 (dst).msg_ctime = (src).msg_ctime; \ 1465 } while (/*CONSTCOND*/ 0) 1466 #define FILL_SEM(src, dst) do { \ 1467 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1468 (dst).sem_nsems = (src).sem_nsems; \ 1469 (dst).sem_otime = (src).sem_otime; \ 1470 (dst).sem_ctime = (src).sem_ctime; \ 1471 } while (/*CONSTCOND*/ 0) 1472 #define FILL_SHM(src, dst) do { \ 1473 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1474 (dst).shm_segsz = (src).shm_segsz; \ 1475 (dst).shm_lpid = (src).shm_lpid; \ 1476 (dst).shm_cpid = (src).shm_cpid; \ 1477 (dst).shm_atime = (src).shm_atime; \ 1478 (dst).shm_dtime = (src).shm_dtime; \ 1479 (dst).shm_ctime = (src).shm_ctime; \ 1480 (dst).shm_nattch = (src).shm_nattch; \ 1481 } while (/*CONSTCOND*/ 0) 1482 1483 static int 1484 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1485 { 1486 void *where = oldp; 1487 size_t *sizep = oldlenp; 1488 #ifdef SYSVMSG 1489 struct msg_sysctl_info *msgsi = NULL; 1490 #endif 1491 #ifdef SYSVSEM 1492 struct sem_sysctl_info *semsi = NULL; 1493 #endif 1494 #ifdef SYSVSHM 1495 struct shm_sysctl_info *shmsi = NULL; 1496 #endif 1497 size_t infosize, dssize, tsize, buflen; 1498 void *buf = NULL; 1499 char *start; 1500 int32_t nds; 1501 int i, error, ret; 1502 1503 if (namelen != 1) 1504 return (EINVAL); 1505 1506 start = where; 1507 buflen = *sizep; 1508 1509 switch (*name) { 1510 case KERN_SYSVIPC_MSG_INFO: 1511 #ifdef SYSVMSG 1512 infosize = sizeof(msgsi->msginfo); 1513 nds = msginfo.msgmni; 1514 dssize = sizeof(msgsi->msgids[0]); 1515 break; 1516 #else 1517 return (EINVAL); 1518 #endif 1519 case KERN_SYSVIPC_SEM_INFO: 1520 #ifdef SYSVSEM 1521 infosize = sizeof(semsi->seminfo); 1522 nds = seminfo.semmni; 1523 dssize = sizeof(semsi->semids[0]); 1524 break; 1525 #else 1526 return (EINVAL); 1527 #endif 1528 case KERN_SYSVIPC_SHM_INFO: 1529 #ifdef SYSVSHM 1530 infosize = sizeof(shmsi->shminfo); 1531 nds = shminfo.shmmni; 1532 dssize = sizeof(shmsi->shmids[0]); 1533 break; 1534 #else 1535 return (EINVAL); 1536 #endif 1537 default: 1538 return (EINVAL); 1539 } 1540 /* 1541 * Round infosize to 64 bit boundary if requesting more than just 1542 * the info structure or getting the total data size. 1543 */ 1544 if (where == NULL || *sizep > infosize) 1545 infosize = ((infosize + 7) / 8) * 8; 1546 tsize = infosize + nds * dssize; 1547 1548 /* Return just the total size required. */ 1549 if (where == NULL) { 1550 *sizep = tsize; 1551 return (0); 1552 } 1553 1554 /* Not enough room for even the info struct. */ 1555 if (buflen < infosize) { 1556 *sizep = 0; 1557 return (ENOMEM); 1558 } 1559 buf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1560 memset(buf, 0, min(tsize, buflen)); 1561 1562 switch (*name) { 1563 #ifdef SYSVMSG 1564 case KERN_SYSVIPC_MSG_INFO: 1565 msgsi = (struct msg_sysctl_info *)buf; 1566 msgsi->msginfo = msginfo; 1567 break; 1568 #endif 1569 #ifdef SYSVSEM 1570 case KERN_SYSVIPC_SEM_INFO: 1571 semsi = (struct sem_sysctl_info *)buf; 1572 semsi->seminfo = seminfo; 1573 break; 1574 #endif 1575 #ifdef SYSVSHM 1576 case KERN_SYSVIPC_SHM_INFO: 1577 shmsi = (struct shm_sysctl_info *)buf; 1578 shmsi->shminfo = shminfo; 1579 break; 1580 #endif 1581 } 1582 buflen -= infosize; 1583 1584 ret = 0; 1585 if (buflen > 0) { 1586 /* Fill in the IPC data structures. */ 1587 for (i = 0; i < nds; i++) { 1588 if (buflen < dssize) { 1589 ret = ENOMEM; 1590 break; 1591 } 1592 switch (*name) { 1593 #ifdef SYSVMSG 1594 case KERN_SYSVIPC_MSG_INFO: 1595 FILL_MSG(msqids[i], msgsi->msgids[i]); 1596 break; 1597 #endif 1598 #ifdef SYSVSEM 1599 case KERN_SYSVIPC_SEM_INFO: 1600 FILL_SEM(sema[i], semsi->semids[i]); 1601 break; 1602 #endif 1603 #ifdef SYSVSHM 1604 case KERN_SYSVIPC_SHM_INFO: 1605 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1606 break; 1607 #endif 1608 } 1609 buflen -= dssize; 1610 } 1611 } 1612 *sizep -= buflen; 1613 error = copyout(buf, start, *sizep); 1614 /* If copyout succeeded, use return code set earlier. */ 1615 if (error == 0) 1616 error = ret; 1617 if (buf) 1618 free(buf, M_TEMP); 1619 return (error); 1620 } 1621 1622 #undef FILL_PERM 1623 #undef FILL_MSG 1624 #undef FILL_SEM 1625 #undef FILL_SHM 1626 1627 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1628 1629 #if NPTY > 0 1630 /* 1631 * sysctl helper routine for kern.maxptys. ensures that any new value 1632 * is acceptable to the pty subsystem. 1633 */ 1634 static int 1635 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1636 { 1637 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1638 int error, max; 1639 struct sysctlnode node; 1640 1641 /* get current value of maxptys */ 1642 max = pty_maxptys(0, 0); 1643 1644 node = *rnode; 1645 node.sysctl_data = &max; 1646 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1647 if (error || newp == NULL) 1648 return (error); 1649 1650 if (max != pty_maxptys(max, 1)) 1651 return (EINVAL); 1652 1653 return (0); 1654 } 1655 #endif /* NPTY > 0 */ 1656 1657 /* 1658 * sysctl helper routine for kern.sbmax. basically just ensures that 1659 * any new value is not too small. 1660 */ 1661 static int 1662 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1663 { 1664 int error, new_sbmax; 1665 struct sysctlnode node; 1666 1667 new_sbmax = sb_max; 1668 node = *rnode; 1669 node.sysctl_data = &new_sbmax; 1670 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1671 if (error || newp == NULL) 1672 return (error); 1673 1674 error = sb_max_set(new_sbmax); 1675 1676 return (error); 1677 } 1678 1679 /* 1680 * sysctl helper routine for kern.urandom node. picks a random number 1681 * for you. 1682 */ 1683 static int 1684 sysctl_kern_urnd(SYSCTLFN_ARGS) 1685 { 1686 #if NRND > 0 1687 int v; 1688 1689 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1690 struct sysctlnode node = *rnode; 1691 node.sysctl_data = &v; 1692 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1693 } 1694 else 1695 return (EIO); /*XXX*/ 1696 #else 1697 return (EOPNOTSUPP); 1698 #endif 1699 } 1700 1701 /* 1702 * sysctl helper routine to do kern.lwp.* work. 1703 */ 1704 static int 1705 sysctl_kern_lwp(SYSCTLFN_ARGS) 1706 { 1707 struct kinfo_lwp klwp; 1708 struct proc *p; 1709 struct lwp *l2; 1710 char *where, *dp; 1711 int pid, elem_size, elem_count; 1712 int buflen, needed, error; 1713 1714 if (namelen == 1 && name[0] == CTL_QUERY) 1715 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1716 1717 dp = where = oldp; 1718 buflen = where != NULL ? *oldlenp : 0; 1719 error = needed = 0; 1720 1721 if (newp != NULL || namelen != 3) 1722 return (EINVAL); 1723 pid = name[0]; 1724 elem_size = name[1]; 1725 elem_count = name[2]; 1726 1727 p = pfind(pid); 1728 if (p == NULL) 1729 return (ESRCH); 1730 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1731 if (buflen >= elem_size && elem_count > 0) { 1732 fill_lwp(l2, &klwp); 1733 /* 1734 * Copy out elem_size, but not larger than 1735 * the size of a struct kinfo_proc2. 1736 */ 1737 error = copyout(&klwp, dp, 1738 min(sizeof(klwp), elem_size)); 1739 if (error) 1740 goto cleanup; 1741 dp += elem_size; 1742 buflen -= elem_size; 1743 elem_count--; 1744 } 1745 needed += elem_size; 1746 } 1747 1748 if (where != NULL) { 1749 *oldlenp = dp - where; 1750 if (needed > *oldlenp) 1751 return (ENOMEM); 1752 } else { 1753 needed += KERN_LWPSLOP; 1754 *oldlenp = needed; 1755 } 1756 return (0); 1757 cleanup: 1758 return (error); 1759 } 1760 1761 /* 1762 * sysctl helper routine for kern.forkfsleep node. ensures that the 1763 * given value is not too large or two small, and is at least one 1764 * timer tick if not zero. 1765 */ 1766 static int 1767 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1768 { 1769 /* userland sees value in ms, internally is in ticks */ 1770 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1771 int error, timo, lsleep; 1772 struct sysctlnode node; 1773 1774 lsleep = forkfsleep * 1000 / hz; 1775 node = *rnode; 1776 node.sysctl_data = &lsleep; 1777 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1778 if (error || newp == NULL) 1779 return (error); 1780 1781 /* refuse negative values, and overly 'long time' */ 1782 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1783 return (EINVAL); 1784 1785 timo = mstohz(lsleep); 1786 1787 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1788 if (lsleep != 0 && timo == 0) 1789 forkfsleep = 1; 1790 else 1791 forkfsleep = timo; 1792 1793 return (0); 1794 } 1795 1796 /* 1797 * sysctl helper routine for kern.root_partition 1798 */ 1799 static int 1800 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1801 { 1802 int rootpart = DISKPART(rootdev); 1803 struct sysctlnode node = *rnode; 1804 1805 node.sysctl_data = &rootpart; 1806 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1807 } 1808 1809 /* 1810 * sysctl helper function for kern.drivers 1811 */ 1812 static int 1813 sysctl_kern_drivers(SYSCTLFN_ARGS) 1814 { 1815 int error; 1816 size_t buflen; 1817 struct kinfo_drivers kd; 1818 char *start, *where; 1819 const char *dname; 1820 int i; 1821 extern struct devsw_conv *devsw_conv; 1822 extern int max_devsw_convs; 1823 1824 if (newp != NULL || namelen != 0) 1825 return (EINVAL); 1826 1827 start = where = oldp; 1828 buflen = *oldlenp; 1829 if (where == NULL) { 1830 *oldlenp = max_devsw_convs * sizeof kd; 1831 return 0; 1832 } 1833 1834 /* 1835 * An array of kinfo_drivers structures 1836 */ 1837 error = 0; 1838 for (i = 0; i < max_devsw_convs; i++) { 1839 dname = devsw_conv[i].d_name; 1840 if (dname == NULL) 1841 continue; 1842 if (buflen < sizeof kd) { 1843 error = ENOMEM; 1844 break; 1845 } 1846 memset(&kd, 0, sizeof(kd)); 1847 kd.d_bmajor = devsw_conv[i].d_bmajor; 1848 kd.d_cmajor = devsw_conv[i].d_cmajor; 1849 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1850 error = copyout(&kd, where, sizeof kd); 1851 if (error != 0) 1852 break; 1853 buflen -= sizeof kd; 1854 where += sizeof kd; 1855 } 1856 *oldlenp = where - start; 1857 return error; 1858 } 1859 1860 /* 1861 * sysctl helper function for kern.file2 1862 */ 1863 static int 1864 sysctl_kern_file2(SYSCTLFN_ARGS) 1865 { 1866 struct proc *p; 1867 struct file *fp; 1868 struct filedesc *fd; 1869 struct kinfo_file kf; 1870 char *dp; 1871 u_int i, op; 1872 size_t len, needed, elem_size, out_size; 1873 int error, arg, elem_count; 1874 1875 if (namelen == 1 && name[0] == CTL_QUERY) 1876 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1877 1878 if (namelen != 4) 1879 return (EINVAL); 1880 1881 error = 0; 1882 dp = oldp; 1883 len = (oldp != NULL) ? *oldlenp : 0; 1884 op = name[0]; 1885 arg = name[1]; 1886 elem_size = name[2]; 1887 elem_count = name[3]; 1888 out_size = MIN(sizeof(kf), elem_size); 1889 needed = 0; 1890 1891 if (elem_size < 1 || elem_count < 0) 1892 return (EINVAL); 1893 1894 switch (op) { 1895 case KERN_FILE_BYFILE: 1896 /* 1897 * doesn't use arg so it must be zero 1898 */ 1899 if (arg != 0) 1900 return (EINVAL); 1901 LIST_FOREACH(fp, &filehead, f_list) { 1902 if (len >= elem_size && elem_count > 0) { 1903 fill_file(&kf, fp, NULL, 0); 1904 error = copyout(&kf, dp, out_size); 1905 if (error) 1906 break; 1907 dp += elem_size; 1908 len -= elem_size; 1909 } 1910 if (elem_count > 0) { 1911 needed += elem_size; 1912 if (elem_count != INT_MAX) 1913 elem_count--; 1914 } 1915 } 1916 break; 1917 case KERN_FILE_BYPID: 1918 if (arg < -1) 1919 /* -1 means all processes */ 1920 return (EINVAL); 1921 proclist_lock_read(); 1922 PROCLIST_FOREACH(p, &allproc) { 1923 if (p->p_stat == SIDL) 1924 /* skip embryonic processes */ 1925 continue; 1926 if (arg > 0 && p->p_pid != arg) 1927 /* pick only the one we want */ 1928 /* XXX want 0 to mean "kernel files" */ 1929 continue; 1930 fd = p->p_fd; 1931 for (i = 0; i < fd->fd_nfiles; i++) { 1932 fp = fd->fd_ofiles[i]; 1933 if (fp == NULL || !FILE_IS_USABLE(fp)) 1934 continue; 1935 if (len >= elem_size && elem_count > 0) { 1936 fill_file(&kf, fd->fd_ofiles[i], 1937 p, i); 1938 error = copyout(&kf, dp, out_size); 1939 if (error) 1940 break; 1941 dp += elem_size; 1942 len -= elem_size; 1943 } 1944 if (elem_count > 0) { 1945 needed += elem_size; 1946 if (elem_count != INT_MAX) 1947 elem_count--; 1948 } 1949 } 1950 } 1951 proclist_unlock_read(); 1952 break; 1953 default: 1954 return (EINVAL); 1955 } 1956 1957 if (oldp == NULL) 1958 needed += KERN_FILESLOP * elem_size; 1959 *oldlenp = needed; 1960 1961 return (error); 1962 } 1963 1964 static void 1965 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 1966 { 1967 1968 memset(kp, 0, sizeof(*kp)); 1969 1970 kp->ki_fileaddr = PTRTOUINT64(fp); 1971 kp->ki_flag = fp->f_flag; 1972 kp->ki_iflags = fp->f_iflags; 1973 kp->ki_ftype = fp->f_type; 1974 kp->ki_count = fp->f_count; 1975 kp->ki_msgcount = fp->f_msgcount; 1976 kp->ki_usecount = fp->f_usecount; 1977 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 1978 kp->ki_fuid = fp->f_cred->cr_uid; 1979 kp->ki_fgid = fp->f_cred->cr_gid; 1980 kp->ki_fops = PTRTOUINT64(fp->f_ops); 1981 kp->ki_foffset = fp->f_offset; 1982 kp->ki_fdata = PTRTOUINT64(fp->f_data); 1983 1984 /* vnode information to glue this file to something */ 1985 if (fp->f_type == DTYPE_VNODE) { 1986 struct vnode *vp = (struct vnode *)fp->f_data; 1987 1988 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 1989 kp->ki_vsize = vp->v_size; 1990 kp->ki_vtype = vp->v_type; 1991 kp->ki_vtag = vp->v_tag; 1992 kp->ki_vdata = PTRTOUINT64(vp->v_data); 1993 } 1994 1995 /* process information when retrieved via KERN_FILE_BYPID */ 1996 if (p) { 1997 kp->ki_pid = p->p_pid; 1998 kp->ki_fd = i; 1999 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2000 } 2001 } 2002 2003 static int 2004 sysctl_doeproc(SYSCTLFN_ARGS) 2005 { 2006 struct eproc eproc; 2007 struct kinfo_proc2 kproc2; 2008 struct kinfo_proc *dp; 2009 struct proc *p; 2010 const struct proclist_desc *pd; 2011 char *where, *dp2; 2012 int type, op, arg; 2013 u_int elem_size, elem_count; 2014 size_t buflen, needed; 2015 int error; 2016 2017 if (namelen == 1 && name[0] == CTL_QUERY) 2018 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2019 2020 dp = oldp; 2021 dp2 = where = oldp; 2022 buflen = where != NULL ? *oldlenp : 0; 2023 error = 0; 2024 needed = 0; 2025 type = rnode->sysctl_num; 2026 2027 if (type == KERN_PROC) { 2028 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2029 return (EINVAL); 2030 op = name[0]; 2031 if (op != KERN_PROC_ALL) 2032 arg = name[1]; 2033 else 2034 arg = 0; /* Quell compiler warning */ 2035 elem_size = elem_count = 0; /* Ditto */ 2036 } else { 2037 if (namelen != 4) 2038 return (EINVAL); 2039 op = name[0]; 2040 arg = name[1]; 2041 elem_size = name[2]; 2042 elem_count = name[3]; 2043 } 2044 2045 proclist_lock_read(); 2046 2047 pd = proclists; 2048 again: 2049 PROCLIST_FOREACH(p, pd->pd_list) { 2050 /* 2051 * Skip embryonic processes. 2052 */ 2053 if (p->p_stat == SIDL) 2054 continue; 2055 /* 2056 * TODO - make more efficient (see notes below). 2057 * do by session. 2058 */ 2059 switch (op) { 2060 2061 case KERN_PROC_PID: 2062 /* could do this with just a lookup */ 2063 if (p->p_pid != (pid_t)arg) 2064 continue; 2065 break; 2066 2067 case KERN_PROC_PGRP: 2068 /* could do this by traversing pgrp */ 2069 if (p->p_pgrp->pg_id != (pid_t)arg) 2070 continue; 2071 break; 2072 2073 case KERN_PROC_SESSION: 2074 if (p->p_session->s_sid != (pid_t)arg) 2075 continue; 2076 break; 2077 2078 case KERN_PROC_TTY: 2079 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2080 if ((p->p_flag & P_CONTROLT) == 0 || 2081 p->p_session->s_ttyp == NULL || 2082 p->p_session->s_ttyvp != NULL) 2083 continue; 2084 } else if ((p->p_flag & P_CONTROLT) == 0 || 2085 p->p_session->s_ttyp == NULL) { 2086 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2087 continue; 2088 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2089 continue; 2090 break; 2091 2092 case KERN_PROC_UID: 2093 if (p->p_ucred->cr_uid != (uid_t)arg) 2094 continue; 2095 break; 2096 2097 case KERN_PROC_RUID: 2098 if (p->p_cred->p_ruid != (uid_t)arg) 2099 continue; 2100 break; 2101 2102 case KERN_PROC_GID: 2103 if (p->p_ucred->cr_gid != (uid_t)arg) 2104 continue; 2105 break; 2106 2107 case KERN_PROC_RGID: 2108 if (p->p_cred->p_rgid != (uid_t)arg) 2109 continue; 2110 break; 2111 2112 case KERN_PROC_ALL: 2113 /* allow everything */ 2114 break; 2115 2116 default: 2117 error = EINVAL; 2118 goto cleanup; 2119 } 2120 if (type == KERN_PROC) { 2121 if (buflen >= sizeof(struct kinfo_proc)) { 2122 fill_eproc(p, &eproc); 2123 error = copyout(p, &dp->kp_proc, 2124 sizeof(struct proc)); 2125 if (error) 2126 goto cleanup; 2127 error = copyout(&eproc, &dp->kp_eproc, 2128 sizeof(eproc)); 2129 if (error) 2130 goto cleanup; 2131 dp++; 2132 buflen -= sizeof(struct kinfo_proc); 2133 } 2134 needed += sizeof(struct kinfo_proc); 2135 } else { /* KERN_PROC2 */ 2136 if (buflen >= elem_size && elem_count > 0) { 2137 fill_kproc2(p, &kproc2); 2138 /* 2139 * Copy out elem_size, but not larger than 2140 * the size of a struct kinfo_proc2. 2141 */ 2142 error = copyout(&kproc2, dp2, 2143 min(sizeof(kproc2), elem_size)); 2144 if (error) 2145 goto cleanup; 2146 dp2 += elem_size; 2147 buflen -= elem_size; 2148 elem_count--; 2149 } 2150 needed += elem_size; 2151 } 2152 } 2153 pd++; 2154 if (pd->pd_list != NULL) 2155 goto again; 2156 proclist_unlock_read(); 2157 2158 if (where != NULL) { 2159 if (type == KERN_PROC) 2160 *oldlenp = (char *)dp - where; 2161 else 2162 *oldlenp = dp2 - where; 2163 if (needed > *oldlenp) 2164 return (ENOMEM); 2165 } else { 2166 needed += KERN_PROCSLOP; 2167 *oldlenp = needed; 2168 } 2169 return (0); 2170 cleanup: 2171 proclist_unlock_read(); 2172 return (error); 2173 } 2174 2175 /* 2176 * sysctl helper routine for kern.proc_args pseudo-subtree. 2177 */ 2178 static int 2179 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2180 { 2181 struct ps_strings pss; 2182 struct proc *p, *up = l->l_proc; 2183 size_t len, upper_bound, xlen, i; 2184 struct uio auio; 2185 struct iovec aiov; 2186 vaddr_t argv; 2187 pid_t pid; 2188 int nargv, type, error; 2189 char *arg; 2190 char *tmp; 2191 2192 if (namelen == 1 && name[0] == CTL_QUERY) 2193 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2194 2195 if (newp != NULL || namelen != 2) 2196 return (EINVAL); 2197 pid = name[0]; 2198 type = name[1]; 2199 2200 switch (type) { 2201 case KERN_PROC_ARGV: 2202 case KERN_PROC_NARGV: 2203 case KERN_PROC_ENV: 2204 case KERN_PROC_NENV: 2205 /* ok */ 2206 break; 2207 default: 2208 return (EINVAL); 2209 } 2210 2211 /* check pid */ 2212 if ((p = pfind(pid)) == NULL) 2213 return (EINVAL); 2214 2215 /* only root or same user change look at the environment */ 2216 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2217 if (up->p_ucred->cr_uid != 0) { 2218 if (up->p_cred->p_ruid != p->p_cred->p_ruid || 2219 up->p_cred->p_ruid != p->p_cred->p_svuid) 2220 return (EPERM); 2221 } 2222 } 2223 2224 if (oldp == NULL) { 2225 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2226 *oldlenp = sizeof (int); 2227 else 2228 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2229 return (0); 2230 } 2231 2232 /* 2233 * Zombies don't have a stack, so we can't read their psstrings. 2234 * System processes also don't have a user stack. 2235 */ 2236 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) 2237 return (EINVAL); 2238 2239 /* 2240 * Lock the process down in memory. 2241 */ 2242 /* XXXCDC: how should locking work here? */ 2243 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) 2244 return (EFAULT); 2245 2246 p->p_vmspace->vm_refcnt++; /* XXX */ 2247 2248 /* 2249 * Allocate a temporary buffer to hold the arguments. 2250 */ 2251 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2252 2253 /* 2254 * Read in the ps_strings structure. 2255 */ 2256 aiov.iov_base = &pss; 2257 aiov.iov_len = sizeof(pss); 2258 auio.uio_iov = &aiov; 2259 auio.uio_iovcnt = 1; 2260 auio.uio_offset = (vaddr_t)p->p_psstr; 2261 auio.uio_resid = sizeof(pss); 2262 auio.uio_segflg = UIO_SYSSPACE; 2263 auio.uio_rw = UIO_READ; 2264 auio.uio_procp = NULL; 2265 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2266 if (error) 2267 goto done; 2268 2269 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2270 memcpy(&nargv, (char *)&pss + p->p_psnargv, sizeof(nargv)); 2271 else 2272 memcpy(&nargv, (char *)&pss + p->p_psnenv, sizeof(nargv)); 2273 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2274 error = copyout(&nargv, oldp, sizeof(nargv)); 2275 *oldlenp = sizeof(nargv); 2276 goto done; 2277 } 2278 /* 2279 * Now read the address of the argument vector. 2280 */ 2281 switch (type) { 2282 case KERN_PROC_ARGV: 2283 /* XXX compat32 stuff here */ 2284 memcpy(&tmp, (char *)&pss + p->p_psargv, sizeof(tmp)); 2285 break; 2286 case KERN_PROC_ENV: 2287 memcpy(&tmp, (char *)&pss + p->p_psenv, sizeof(tmp)); 2288 break; 2289 default: 2290 return (EINVAL); 2291 } 2292 auio.uio_offset = (off_t)(unsigned long)tmp; 2293 aiov.iov_base = &argv; 2294 aiov.iov_len = sizeof(argv); 2295 auio.uio_iov = &aiov; 2296 auio.uio_iovcnt = 1; 2297 auio.uio_resid = sizeof(argv); 2298 auio.uio_segflg = UIO_SYSSPACE; 2299 auio.uio_rw = UIO_READ; 2300 auio.uio_procp = NULL; 2301 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2302 if (error) 2303 goto done; 2304 2305 /* 2306 * Now copy in the actual argument vector, one page at a time, 2307 * since we don't know how long the vector is (though, we do 2308 * know how many NUL-terminated strings are in the vector). 2309 */ 2310 len = 0; 2311 upper_bound = *oldlenp; 2312 for (; nargv != 0 && len < upper_bound; len += xlen) { 2313 aiov.iov_base = arg; 2314 aiov.iov_len = PAGE_SIZE; 2315 auio.uio_iov = &aiov; 2316 auio.uio_iovcnt = 1; 2317 auio.uio_offset = argv + len; 2318 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2319 auio.uio_resid = xlen; 2320 auio.uio_segflg = UIO_SYSSPACE; 2321 auio.uio_rw = UIO_READ; 2322 auio.uio_procp = NULL; 2323 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2324 if (error) 2325 goto done; 2326 2327 for (i = 0; i < xlen && nargv != 0; i++) { 2328 if (arg[i] == '\0') 2329 nargv--; /* one full string */ 2330 } 2331 2332 /* 2333 * Make sure we don't copyout past the end of the user's 2334 * buffer. 2335 */ 2336 if (len + i > upper_bound) 2337 i = upper_bound - len; 2338 2339 error = copyout(arg, (char *)oldp + len, i); 2340 if (error) 2341 break; 2342 2343 if (nargv == 0) { 2344 len += i; 2345 break; 2346 } 2347 } 2348 *oldlenp = len; 2349 2350 done: 2351 uvmspace_free(p->p_vmspace); 2352 2353 free(arg, M_TEMP); 2354 return (error); 2355 } 2356 2357 /* 2358 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2359 * calculate on the fly taking into account integer overflow and the 2360 * current wired count. 2361 */ 2362 static int 2363 sysctl_hw_usermem(SYSCTLFN_ARGS) 2364 { 2365 u_int ui; 2366 u_quad_t uq; 2367 struct sysctlnode node; 2368 2369 node = *rnode; 2370 switch (rnode->sysctl_num) { 2371 case HW_USERMEM: 2372 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2373 ui = UINT_MAX; 2374 else 2375 ui *= PAGE_SIZE; 2376 node.sysctl_data = &ui; 2377 break; 2378 case HW_USERMEM64: 2379 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2380 node.sysctl_data = &uq; 2381 break; 2382 default: 2383 return (EINVAL); 2384 } 2385 2386 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2387 } 2388 2389 /* 2390 * sysctl helper routine for kern.cnmagic node. pulls the old value 2391 * out, encoded, and stuffs the new value in for decoding. 2392 */ 2393 static int 2394 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2395 { 2396 char magic[CNS_LEN]; 2397 int error; 2398 struct sysctlnode node; 2399 2400 if (oldp) 2401 cn_get_magic(magic, CNS_LEN); 2402 node = *rnode; 2403 node.sysctl_data = &magic[0]; 2404 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2405 if (error || newp == NULL) 2406 return (error); 2407 2408 return (cn_set_magic(magic)); 2409 } 2410 2411 static int 2412 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2413 { 2414 int ncpu; 2415 struct sysctlnode node; 2416 2417 ncpu = sysctl_ncpus(); 2418 node = *rnode; 2419 node.sysctl_data = &ncpu; 2420 2421 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2422 } 2423 2424 2425 /* 2426 * ******************************************************************** 2427 * section 3: public helper routines that are used for more than one 2428 * node 2429 * ******************************************************************** 2430 */ 2431 2432 /* 2433 * sysctl helper routine for the kern.root_device node and some ports' 2434 * machdep.root_device nodes. 2435 */ 2436 int 2437 sysctl_root_device(SYSCTLFN_ARGS) 2438 { 2439 struct sysctlnode node; 2440 2441 node = *rnode; 2442 node.sysctl_data = root_device->dv_xname; 2443 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2444 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2445 } 2446 2447 /* 2448 * sysctl helper routine for kern.consdev, dependent on the current 2449 * state of the console. also used for machdep.console_device on some 2450 * ports. 2451 */ 2452 int 2453 sysctl_consdev(SYSCTLFN_ARGS) 2454 { 2455 dev_t consdev; 2456 struct sysctlnode node; 2457 2458 if (cn_tab != NULL) 2459 consdev = cn_tab->cn_dev; 2460 else 2461 consdev = NODEV; 2462 node = *rnode; 2463 node.sysctl_data = &consdev; 2464 node.sysctl_size = sizeof(consdev); 2465 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2466 } 2467 2468 /* 2469 * ******************************************************************** 2470 * section 4: support for some helpers 2471 * ******************************************************************** 2472 */ 2473 2474 /* 2475 * Fill in a kinfo_proc2 structure for the specified process. 2476 */ 2477 static void 2478 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2479 { 2480 struct tty *tp; 2481 struct lwp *l; 2482 struct timeval ut, st; 2483 2484 memset(ki, 0, sizeof(*ki)); 2485 2486 ki->p_paddr = PTRTOUINT64(p); 2487 ki->p_fd = PTRTOUINT64(p->p_fd); 2488 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2489 ki->p_stats = PTRTOUINT64(p->p_stats); 2490 ki->p_limit = PTRTOUINT64(p->p_limit); 2491 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2492 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2493 ki->p_sess = PTRTOUINT64(p->p_session); 2494 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2495 ki->p_ru = PTRTOUINT64(p->p_ru); 2496 2497 ki->p_eflag = 0; 2498 ki->p_exitsig = p->p_exitsig; 2499 ki->p_flag = p->p_flag; 2500 2501 ki->p_pid = p->p_pid; 2502 if (p->p_pptr) 2503 ki->p_ppid = p->p_pptr->p_pid; 2504 else 2505 ki->p_ppid = 0; 2506 ki->p_sid = p->p_session->s_sid; 2507 ki->p__pgid = p->p_pgrp->pg_id; 2508 2509 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2510 2511 ki->p_uid = p->p_ucred->cr_uid; 2512 ki->p_ruid = p->p_cred->p_ruid; 2513 ki->p_gid = p->p_ucred->cr_gid; 2514 ki->p_rgid = p->p_cred->p_rgid; 2515 ki->p_svuid = p->p_cred->p_svuid; 2516 ki->p_svgid = p->p_cred->p_svgid; 2517 2518 memcpy(ki->p_groups, p->p_cred->pc_ucred->cr_groups, 2519 min(sizeof(ki->p_groups), sizeof(p->p_cred->pc_ucred->cr_groups))); 2520 ki->p_ngroups = p->p_cred->pc_ucred->cr_ngroups; 2521 2522 ki->p_jobc = p->p_pgrp->pg_jobc; 2523 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2524 ki->p_tdev = tp->t_dev; 2525 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2526 ki->p_tsess = PTRTOUINT64(tp->t_session); 2527 } else { 2528 ki->p_tdev = NODEV; 2529 } 2530 2531 ki->p_estcpu = p->p_estcpu; 2532 ki->p_rtime_sec = p->p_rtime.tv_sec; 2533 ki->p_rtime_usec = p->p_rtime.tv_usec; 2534 ki->p_cpticks = p->p_cpticks; 2535 ki->p_pctcpu = p->p_pctcpu; 2536 2537 ki->p_uticks = p->p_uticks; 2538 ki->p_sticks = p->p_sticks; 2539 ki->p_iticks = p->p_iticks; 2540 2541 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2542 ki->p_traceflag = p->p_traceflag; 2543 2544 2545 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2546 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2547 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2548 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2549 2550 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2551 ki->p_realstat = p->p_stat; 2552 ki->p_nice = p->p_nice; 2553 2554 ki->p_xstat = p->p_xstat; 2555 ki->p_acflag = p->p_acflag; 2556 2557 strncpy(ki->p_comm, p->p_comm, 2558 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2559 2560 strncpy(ki->p_login, p->p_session->s_login, 2561 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2562 2563 ki->p_nlwps = p->p_nlwps; 2564 ki->p_nrlwps = p->p_nrlwps; 2565 ki->p_realflag = p->p_flag; 2566 2567 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2568 ki->p_vm_rssize = 0; 2569 ki->p_vm_tsize = 0; 2570 ki->p_vm_dsize = 0; 2571 ki->p_vm_ssize = 0; 2572 l = NULL; 2573 } else { 2574 struct vmspace *vm = p->p_vmspace; 2575 2576 ki->p_vm_rssize = vm_resident_count(vm); 2577 ki->p_vm_tsize = vm->vm_tsize; 2578 ki->p_vm_dsize = vm->vm_dsize; 2579 ki->p_vm_ssize = vm->vm_ssize; 2580 2581 /* Pick a "representative" LWP */ 2582 l = proc_representative_lwp(p); 2583 ki->p_forw = PTRTOUINT64(l->l_forw); 2584 ki->p_back = PTRTOUINT64(l->l_back); 2585 ki->p_addr = PTRTOUINT64(l->l_addr); 2586 ki->p_stat = l->l_stat; 2587 ki->p_flag |= l->l_flag; 2588 ki->p_swtime = l->l_swtime; 2589 ki->p_slptime = l->l_slptime; 2590 if (l->l_stat == LSONPROC) { 2591 KDASSERT(l->l_cpu != NULL); 2592 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2593 } else 2594 ki->p_schedflags = 0; 2595 ki->p_holdcnt = l->l_holdcnt; 2596 ki->p_priority = l->l_priority; 2597 ki->p_usrpri = l->l_usrpri; 2598 if (l->l_wmesg) 2599 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2600 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2601 2602 } 2603 2604 if (p->p_session->s_ttyvp) 2605 ki->p_eflag |= EPROC_CTTY; 2606 if (SESS_LEADER(p)) 2607 ki->p_eflag |= EPROC_SLEADER; 2608 2609 /* XXX Is this double check necessary? */ 2610 if (P_ZOMBIE(p)) { 2611 ki->p_uvalid = 0; 2612 } else { 2613 ki->p_uvalid = 1; 2614 2615 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2616 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2617 2618 calcru(p, &ut, &st, 0); 2619 ki->p_uutime_sec = ut.tv_sec; 2620 ki->p_uutime_usec = ut.tv_usec; 2621 ki->p_ustime_sec = st.tv_sec; 2622 ki->p_ustime_usec = st.tv_usec; 2623 2624 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2625 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2626 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2627 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2628 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2629 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2630 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2631 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2632 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2633 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2634 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2635 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2636 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 2637 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 2638 2639 timeradd(&p->p_stats->p_cru.ru_utime, 2640 &p->p_stats->p_cru.ru_stime, &ut); 2641 ki->p_uctime_sec = ut.tv_sec; 2642 ki->p_uctime_usec = ut.tv_usec; 2643 } 2644 #ifdef MULTIPROCESSOR 2645 if (l && l->l_cpu != NULL) 2646 ki->p_cpuid = l->l_cpu->ci_cpuid; 2647 else 2648 #endif 2649 ki->p_cpuid = KI_NOCPU; 2650 } 2651 2652 /* 2653 * Fill in a kinfo_lwp structure for the specified lwp. 2654 */ 2655 static void 2656 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2657 { 2658 2659 kl->l_forw = PTRTOUINT64(l->l_forw); 2660 kl->l_back = PTRTOUINT64(l->l_back); 2661 kl->l_laddr = PTRTOUINT64(l); 2662 kl->l_addr = PTRTOUINT64(l->l_addr); 2663 kl->l_stat = l->l_stat; 2664 kl->l_lid = l->l_lid; 2665 kl->l_flag = l->l_flag; 2666 2667 kl->l_swtime = l->l_swtime; 2668 kl->l_slptime = l->l_slptime; 2669 if (l->l_stat == LSONPROC) { 2670 KDASSERT(l->l_cpu != NULL); 2671 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2672 } else 2673 kl->l_schedflags = 0; 2674 kl->l_holdcnt = l->l_holdcnt; 2675 kl->l_priority = l->l_priority; 2676 kl->l_usrpri = l->l_usrpri; 2677 if (l->l_wmesg) 2678 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2679 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2680 #ifdef MULTIPROCESSOR 2681 if (l->l_cpu != NULL) 2682 kl->l_cpuid = l->l_cpu->ci_cpuid; 2683 else 2684 #endif 2685 kl->l_cpuid = KI_NOCPU; 2686 } 2687 2688 /* 2689 * Fill in an eproc structure for the specified process. 2690 */ 2691 void 2692 fill_eproc(struct proc *p, struct eproc *ep) 2693 { 2694 struct tty *tp; 2695 struct lwp *l; 2696 2697 ep->e_paddr = p; 2698 ep->e_sess = p->p_session; 2699 ep->e_pcred = *p->p_cred; 2700 ep->e_ucred = *p->p_ucred; 2701 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2702 ep->e_vm.vm_rssize = 0; 2703 ep->e_vm.vm_tsize = 0; 2704 ep->e_vm.vm_dsize = 0; 2705 ep->e_vm.vm_ssize = 0; 2706 /* ep->e_vm.vm_pmap = XXX; */ 2707 } else { 2708 struct vmspace *vm = p->p_vmspace; 2709 2710 ep->e_vm.vm_rssize = vm_resident_count(vm); 2711 ep->e_vm.vm_tsize = vm->vm_tsize; 2712 ep->e_vm.vm_dsize = vm->vm_dsize; 2713 ep->e_vm.vm_ssize = vm->vm_ssize; 2714 2715 /* Pick a "representative" LWP */ 2716 l = proc_representative_lwp(p); 2717 2718 if (l->l_wmesg) 2719 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2720 } 2721 if (p->p_pptr) 2722 ep->e_ppid = p->p_pptr->p_pid; 2723 else 2724 ep->e_ppid = 0; 2725 ep->e_pgid = p->p_pgrp->pg_id; 2726 ep->e_sid = ep->e_sess->s_sid; 2727 ep->e_jobc = p->p_pgrp->pg_jobc; 2728 if ((p->p_flag & P_CONTROLT) && 2729 (tp = ep->e_sess->s_ttyp)) { 2730 ep->e_tdev = tp->t_dev; 2731 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2732 ep->e_tsess = tp->t_session; 2733 } else 2734 ep->e_tdev = NODEV; 2735 2736 ep->e_xsize = ep->e_xrssize = 0; 2737 ep->e_xccount = ep->e_xswrss = 0; 2738 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2739 if (SESS_LEADER(p)) 2740 ep->e_flag |= EPROC_SLEADER; 2741 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2742 } 2743
Indexes created Tue Sep 23 13:09:54 GMT 2025