init_sysctl.c revision 1.38
1 /* $NetBSD: init_sysctl.c,v 1.38 2005/05/19 20:16:19 elad Exp $ */ 2 3 /*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Brown. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: init_sysctl.c,v 1.38 2005/05/19 20:16:19 elad 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 #include <sys/verified_exec.h> 73 74 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 75 #include <sys/ipc.h> 76 #endif 77 #ifdef SYSVMSG 78 #include <sys/msg.h> 79 #endif 80 #ifdef SYSVSEM 81 #include <sys/sem.h> 82 #endif 83 #ifdef SYSVSHM 84 #include <sys/shm.h> 85 #endif 86 87 #include <machine/cpu.h> 88 89 /* 90 * try over estimating by 5 procs/lwps 91 */ 92 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 93 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 94 95 #ifndef MULTIPROCESSOR 96 #define sysctl_ncpus() (1) 97 #else /* MULTIPROCESSOR */ 98 #ifndef CPU_INFO_FOREACH 99 #define CPU_INFO_ITERATOR int 100 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 101 #endif 102 static int 103 sysctl_ncpus(void) 104 { 105 struct cpu_info *ci; 106 CPU_INFO_ITERATOR cii; 107 108 int ncpus = 0; 109 for (CPU_INFO_FOREACH(cii, ci)) 110 ncpus++; 111 return (ncpus); 112 } 113 #endif /* MULTIPROCESSOR */ 114 115 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 116 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 117 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 118 static int sysctl_kern_securelevel(SYSCTLFN_PROTO); 119 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 120 static int sysctl_setlen(SYSCTLFN_PROTO); 121 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 122 static int sysctl_kern_file(SYSCTLFN_PROTO); 123 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 124 static int sysctl_msgbuf(SYSCTLFN_PROTO); 125 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 126 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 127 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 128 static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 129 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 130 #if NPTY > 0 131 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 132 #endif /* NPTY > 0 */ 133 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 134 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 135 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 136 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 137 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 138 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 139 static int sysctl_kern_file2(SYSCTLFN_PROTO); 140 #ifdef VERIFIED_EXEC 141 static int sysctl_kern_veriexec(SYSCTLFN_PROTO); 142 #endif 143 static int sysctl_doeproc(SYSCTLFN_PROTO); 144 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 145 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 146 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 147 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 148 149 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 150 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 151 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 152 int); 153 154 /* 155 * ******************************************************************** 156 * section 1: setup routines 157 * ******************************************************************** 158 * these functions are stuffed into a link set for sysctl setup 159 * functions. they're never called or referenced from anywhere else. 160 * ******************************************************************** 161 */ 162 163 /* 164 * sets up the base nodes... 165 */ 166 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 167 { 168 169 sysctl_createv(clog, 0, NULL, NULL, 170 CTLFLAG_PERMANENT, 171 CTLTYPE_NODE, "kern", 172 SYSCTL_DESCR("High kernel"), 173 NULL, 0, NULL, 0, 174 CTL_KERN, CTL_EOL); 175 sysctl_createv(clog, 0, NULL, NULL, 176 CTLFLAG_PERMANENT, 177 CTLTYPE_NODE, "vm", 178 SYSCTL_DESCR("Virtual memory"), 179 NULL, 0, NULL, 0, 180 CTL_VM, CTL_EOL); 181 sysctl_createv(clog, 0, NULL, NULL, 182 CTLFLAG_PERMANENT, 183 CTLTYPE_NODE, "vfs", 184 SYSCTL_DESCR("Filesystem"), 185 NULL, 0, NULL, 0, 186 CTL_VFS, CTL_EOL); 187 sysctl_createv(clog, 0, NULL, NULL, 188 CTLFLAG_PERMANENT, 189 CTLTYPE_NODE, "net", 190 SYSCTL_DESCR("Networking"), 191 NULL, 0, NULL, 0, 192 CTL_NET, CTL_EOL); 193 sysctl_createv(clog, 0, NULL, NULL, 194 CTLFLAG_PERMANENT, 195 CTLTYPE_NODE, "debug", 196 SYSCTL_DESCR("Debugging"), 197 NULL, 0, NULL, 0, 198 CTL_DEBUG, CTL_EOL); 199 sysctl_createv(clog, 0, NULL, NULL, 200 CTLFLAG_PERMANENT, 201 CTLTYPE_NODE, "hw", 202 SYSCTL_DESCR("Generic CPU, I/O"), 203 NULL, 0, NULL, 0, 204 CTL_HW, CTL_EOL); 205 sysctl_createv(clog, 0, NULL, NULL, 206 CTLFLAG_PERMANENT, 207 CTLTYPE_NODE, "machdep", 208 SYSCTL_DESCR("Machine dependent"), 209 NULL, 0, NULL, 0, 210 CTL_MACHDEP, CTL_EOL); 211 /* 212 * this node is inserted so that the sysctl nodes in libc can 213 * operate. 214 */ 215 sysctl_createv(clog, 0, NULL, NULL, 216 CTLFLAG_PERMANENT, 217 CTLTYPE_NODE, "user", 218 SYSCTL_DESCR("User-level"), 219 NULL, 0, NULL, 0, 220 CTL_USER, CTL_EOL); 221 sysctl_createv(clog, 0, NULL, NULL, 222 CTLFLAG_PERMANENT, 223 CTLTYPE_NODE, "ddb", 224 SYSCTL_DESCR("In-kernel debugger"), 225 NULL, 0, NULL, 0, 226 CTL_DDB, CTL_EOL); 227 sysctl_createv(clog, 0, NULL, NULL, 228 CTLFLAG_PERMANENT, 229 CTLTYPE_NODE, "proc", 230 SYSCTL_DESCR("Per-process"), 231 NULL, 0, NULL, 0, 232 CTL_PROC, CTL_EOL); 233 sysctl_createv(clog, 0, NULL, NULL, 234 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 235 CTLTYPE_NODE, "vendor", 236 SYSCTL_DESCR("Vendor specific"), 237 NULL, 0, NULL, 0, 238 CTL_VENDOR, CTL_EOL); 239 sysctl_createv(clog, 0, NULL, NULL, 240 CTLFLAG_PERMANENT, 241 CTLTYPE_NODE, "emul", 242 SYSCTL_DESCR("Emulation settings"), 243 NULL, 0, NULL, 0, 244 CTL_EMUL, CTL_EOL); 245 } 246 247 /* 248 * this setup routine is a replacement for kern_sysctl() 249 */ 250 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 251 { 252 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 253 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 254 extern int dumponpanic; /* defined in kern/subr_prf.c */ 255 256 sysctl_createv(clog, 0, NULL, NULL, 257 CTLFLAG_PERMANENT, 258 CTLTYPE_NODE, "kern", NULL, 259 NULL, 0, NULL, 0, 260 CTL_KERN, CTL_EOL); 261 262 sysctl_createv(clog, 0, NULL, NULL, 263 CTLFLAG_PERMANENT, 264 CTLTYPE_STRING, "ostype", 265 SYSCTL_DESCR("Operating system type"), 266 NULL, 0, &ostype, 0, 267 CTL_KERN, KERN_OSTYPE, CTL_EOL); 268 sysctl_createv(clog, 0, NULL, NULL, 269 CTLFLAG_PERMANENT, 270 CTLTYPE_STRING, "osrelease", 271 SYSCTL_DESCR("Operating system release"), 272 NULL, 0, &osrelease, 0, 273 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 274 sysctl_createv(clog, 0, NULL, NULL, 275 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 276 CTLTYPE_INT, "osrevision", 277 SYSCTL_DESCR("Operating system revision"), 278 NULL, __NetBSD_Version__, NULL, 0, 279 CTL_KERN, KERN_OSREV, CTL_EOL); 280 sysctl_createv(clog, 0, NULL, NULL, 281 CTLFLAG_PERMANENT, 282 CTLTYPE_STRING, "version", 283 SYSCTL_DESCR("Kernel version"), 284 NULL, 0, &version, 0, 285 CTL_KERN, KERN_VERSION, CTL_EOL); 286 sysctl_createv(clog, 0, NULL, NULL, 287 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 288 CTLTYPE_INT, "maxvnodes", 289 SYSCTL_DESCR("Maximum number of vnodes"), 290 sysctl_kern_maxvnodes, 0, NULL, 0, 291 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 292 sysctl_createv(clog, 0, NULL, NULL, 293 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 294 CTLTYPE_INT, "maxproc", 295 SYSCTL_DESCR("Maximum number of simultaneous processes"), 296 sysctl_kern_maxproc, 0, NULL, 0, 297 CTL_KERN, KERN_MAXPROC, CTL_EOL); 298 sysctl_createv(clog, 0, NULL, NULL, 299 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 300 CTLTYPE_INT, "maxfiles", 301 SYSCTL_DESCR("Maximum number of open files"), 302 NULL, 0, &maxfiles, 0, 303 CTL_KERN, KERN_MAXFILES, CTL_EOL); 304 sysctl_createv(clog, 0, NULL, NULL, 305 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 306 CTLTYPE_INT, "argmax", 307 SYSCTL_DESCR("Maximum number of bytes of arguments to " 308 "execve(2)"), 309 NULL, ARG_MAX, NULL, 0, 310 CTL_KERN, KERN_ARGMAX, CTL_EOL); 311 sysctl_createv(clog, 0, NULL, NULL, 312 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 313 CTLTYPE_INT, "securelevel", 314 SYSCTL_DESCR("System security level"), 315 sysctl_kern_securelevel, 0, &securelevel, 0, 316 CTL_KERN, KERN_SECURELVL, CTL_EOL); 317 sysctl_createv(clog, 0, NULL, NULL, 318 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 319 CTLTYPE_STRING, "hostname", 320 SYSCTL_DESCR("System hostname"), 321 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 322 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 323 sysctl_createv(clog, 0, NULL, NULL, 324 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 325 CTLTYPE_INT, "hostid", 326 SYSCTL_DESCR("System host ID number"), 327 sysctl_kern_hostid, 0, NULL, 0, 328 CTL_KERN, KERN_HOSTID, CTL_EOL); 329 sysctl_createv(clog, 0, NULL, NULL, 330 CTLFLAG_PERMANENT, 331 CTLTYPE_STRUCT, "clockrate", 332 SYSCTL_DESCR("Kernel clock rates"), 333 sysctl_kern_clockrate, 0, NULL, 334 sizeof(struct clockinfo), 335 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 336 sysctl_createv(clog, 0, NULL, NULL, 337 CTLFLAG_PERMANENT, 338 CTLTYPE_STRUCT, "vnode", 339 SYSCTL_DESCR("System vnode table"), 340 sysctl_kern_vnode, 0, NULL, 0, 341 CTL_KERN, KERN_VNODE, CTL_EOL); 342 sysctl_createv(clog, 0, NULL, NULL, 343 CTLFLAG_PERMANENT, 344 CTLTYPE_STRUCT, "file", 345 SYSCTL_DESCR("System open file table"), 346 sysctl_kern_file, 0, NULL, 0, 347 CTL_KERN, KERN_FILE, CTL_EOL); 348 #ifndef GPROF 349 sysctl_createv(clog, 0, NULL, NULL, 350 CTLFLAG_PERMANENT, 351 CTLTYPE_NODE, "profiling", 352 SYSCTL_DESCR("Profiling information (not available)"), 353 sysctl_notavail, 0, NULL, 0, 354 CTL_KERN, KERN_PROF, CTL_EOL); 355 #endif 356 sysctl_createv(clog, 0, NULL, NULL, 357 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 358 CTLTYPE_INT, "posix1version", 359 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 360 "with which the operating system attempts " 361 "to comply"), 362 NULL, _POSIX_VERSION, NULL, 0, 363 CTL_KERN, KERN_POSIX1, CTL_EOL); 364 sysctl_createv(clog, 0, NULL, NULL, 365 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 366 CTLTYPE_INT, "ngroups", 367 SYSCTL_DESCR("Maximum number of supplemental groups"), 368 NULL, NGROUPS_MAX, NULL, 0, 369 CTL_KERN, KERN_NGROUPS, CTL_EOL); 370 sysctl_createv(clog, 0, NULL, NULL, 371 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 372 CTLTYPE_INT, "job_control", 373 SYSCTL_DESCR("Whether job control is available"), 374 NULL, 1, NULL, 0, 375 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 376 sysctl_createv(clog, 0, NULL, NULL, 377 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 378 CTLTYPE_INT, "saved_ids", 379 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 380 "available"), NULL, 381 #ifdef _POSIX_SAVED_IDS 382 1, 383 #else /* _POSIX_SAVED_IDS */ 384 0, 385 #endif /* _POSIX_SAVED_IDS */ 386 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 387 sysctl_createv(clog, 0, NULL, NULL, 388 CTLFLAG_PERMANENT, 389 CTLTYPE_STRUCT, "boottime", 390 SYSCTL_DESCR("System boot time"), 391 NULL, 0, &boottime, sizeof(boottime), 392 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 393 sysctl_createv(clog, 0, NULL, NULL, 394 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 395 CTLTYPE_STRING, "domainname", 396 SYSCTL_DESCR("YP domain name"), 397 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 398 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 399 sysctl_createv(clog, 0, NULL, NULL, 400 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 401 CTLTYPE_INT, "maxpartitions", 402 SYSCTL_DESCR("Maximum number of partitions allowed per " 403 "disk"), 404 NULL, MAXPARTITIONS, NULL, 0, 405 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 406 sysctl_createv(clog, 0, NULL, NULL, 407 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 408 CTLTYPE_INT, "rawpartition", 409 SYSCTL_DESCR("Raw partition of a disk"), 410 NULL, RAW_PART, NULL, 0, 411 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 412 sysctl_createv(clog, 0, NULL, NULL, 413 CTLFLAG_PERMANENT, 414 CTLTYPE_STRUCT, "timex", NULL, 415 sysctl_notavail, 0, NULL, 0, 416 CTL_KERN, KERN_TIMEX, CTL_EOL); 417 sysctl_createv(clog, 0, NULL, NULL, 418 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 419 CTLTYPE_INT, "autonicetime", 420 SYSCTL_DESCR("CPU clock seconds before non-root " 421 "process priority is lowered"), 422 sysctl_kern_autonice, 0, &autonicetime, 0, 423 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 424 sysctl_createv(clog, 0, NULL, NULL, 425 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 426 CTLTYPE_INT, "autoniceval", 427 SYSCTL_DESCR("Automatic reniced non-root process " 428 "priority"), 429 sysctl_kern_autonice, 0, &autoniceval, 0, 430 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 431 sysctl_createv(clog, 0, NULL, NULL, 432 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 433 CTLTYPE_INT, "rtc_offset", 434 SYSCTL_DESCR("Offset of real time clock from UTC in " 435 "minutes"), 436 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 437 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 438 sysctl_createv(clog, 0, NULL, NULL, 439 CTLFLAG_PERMANENT, 440 CTLTYPE_STRING, "root_device", 441 SYSCTL_DESCR("Name of the root device"), 442 sysctl_root_device, 0, NULL, 0, 443 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 444 sysctl_createv(clog, 0, NULL, NULL, 445 CTLFLAG_PERMANENT, 446 CTLTYPE_INT, "msgbufsize", 447 SYSCTL_DESCR("Size of the kernel message buffer"), 448 sysctl_msgbuf, 0, NULL, 0, 449 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 450 sysctl_createv(clog, 0, NULL, NULL, 451 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 452 CTLTYPE_INT, "fsync", 453 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 454 "Synchronization Option is available on " 455 "this system"), 456 NULL, 1, NULL, 0, 457 CTL_KERN, KERN_FSYNC, CTL_EOL); 458 sysctl_createv(clog, 0, NULL, NULL, 459 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 460 CTLTYPE_INT, "sysvmsg", 461 SYSCTL_DESCR("System V style message support available"), 462 NULL, 463 #ifdef SYSVMSG 464 1, 465 #else /* SYSVMSG */ 466 0, 467 #endif /* SYSVMSG */ 468 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 469 sysctl_createv(clog, 0, NULL, NULL, 470 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 471 CTLTYPE_INT, "sysvsem", 472 SYSCTL_DESCR("System V style semaphore support " 473 "available"), NULL, 474 #ifdef SYSVSEM 475 1, 476 #else /* SYSVSEM */ 477 0, 478 #endif /* SYSVSEM */ 479 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 480 sysctl_createv(clog, 0, NULL, NULL, 481 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 482 CTLTYPE_INT, "sysvshm", 483 SYSCTL_DESCR("System V style shared memory support " 484 "available"), NULL, 485 #ifdef SYSVSHM 486 1, 487 #else /* SYSVSHM */ 488 0, 489 #endif /* SYSVSHM */ 490 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 491 sysctl_createv(clog, 0, NULL, NULL, 492 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 493 CTLTYPE_INT, "synchronized_io", 494 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 495 "I/O Option is available on this system"), 496 NULL, 1, NULL, 0, 497 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 498 sysctl_createv(clog, 0, NULL, NULL, 499 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 500 CTLTYPE_INT, "iov_max", 501 SYSCTL_DESCR("Maximum number of iovec structures per " 502 "process"), 503 NULL, IOV_MAX, NULL, 0, 504 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 505 sysctl_createv(clog, 0, NULL, NULL, 506 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 507 CTLTYPE_INT, "mapped_files", 508 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 509 "Files Option is available on this system"), 510 NULL, 1, NULL, 0, 511 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 512 sysctl_createv(clog, 0, NULL, NULL, 513 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 514 CTLTYPE_INT, "memlock", 515 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 516 "Locking Option is available on this " 517 "system"), 518 NULL, 1, NULL, 0, 519 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 520 sysctl_createv(clog, 0, NULL, NULL, 521 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 522 CTLTYPE_INT, "memlock_range", 523 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 524 "Locking Option is available on this " 525 "system"), 526 NULL, 1, NULL, 0, 527 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 528 sysctl_createv(clog, 0, NULL, NULL, 529 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 530 CTLTYPE_INT, "memory_protection", 531 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 532 "Protection Option is available on this " 533 "system"), 534 NULL, 1, NULL, 0, 535 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 536 sysctl_createv(clog, 0, NULL, NULL, 537 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 538 CTLTYPE_INT, "login_name_max", 539 SYSCTL_DESCR("Maximum login name length"), 540 NULL, LOGIN_NAME_MAX, NULL, 0, 541 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 542 sysctl_createv(clog, 0, NULL, NULL, 543 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 544 CTLTYPE_STRING, "defcorename", 545 SYSCTL_DESCR("Default core file name"), 546 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 547 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 548 sysctl_createv(clog, 0, NULL, NULL, 549 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 550 CTLTYPE_INT, "logsigexit", 551 SYSCTL_DESCR("Log process exit when caused by signals"), 552 NULL, 0, &kern_logsigexit, 0, 553 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 554 sysctl_createv(clog, 0, NULL, NULL, 555 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 556 CTLTYPE_INT, "fscale", 557 SYSCTL_DESCR("Kernel fixed-point scale factor"), 558 NULL, FSCALE, NULL, 0, 559 CTL_KERN, KERN_FSCALE, CTL_EOL); 560 sysctl_createv(clog, 0, NULL, NULL, 561 CTLFLAG_PERMANENT, 562 CTLTYPE_INT, "ccpu", 563 SYSCTL_DESCR("Scheduler exponential decay value"), 564 NULL, 0, &ccpu, 0, 565 CTL_KERN, KERN_CCPU, CTL_EOL); 566 sysctl_createv(clog, 0, NULL, NULL, 567 CTLFLAG_PERMANENT, 568 CTLTYPE_STRUCT, "cp_time", 569 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 570 sysctl_kern_cptime, 0, NULL, 0, 571 CTL_KERN, KERN_CP_TIME, CTL_EOL); 572 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 573 sysctl_createv(clog, 0, NULL, NULL, 574 CTLFLAG_PERMANENT, 575 CTLTYPE_STRUCT, "sysvipc_info", 576 SYSCTL_DESCR("System V style IPC information"), 577 sysctl_kern_sysvipc, 0, NULL, 0, 578 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 579 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 580 sysctl_createv(clog, 0, NULL, NULL, 581 CTLFLAG_PERMANENT, 582 CTLTYPE_INT, "msgbuf", 583 SYSCTL_DESCR("Kernel message buffer"), 584 sysctl_msgbuf, 0, NULL, 0, 585 CTL_KERN, KERN_MSGBUF, CTL_EOL); 586 sysctl_createv(clog, 0, NULL, NULL, 587 CTLFLAG_PERMANENT, 588 CTLTYPE_STRUCT, "consdev", 589 SYSCTL_DESCR("Console device"), 590 sysctl_consdev, 0, NULL, sizeof(dev_t), 591 CTL_KERN, KERN_CONSDEV, CTL_EOL); 592 #if NPTY > 0 593 sysctl_createv(clog, 0, NULL, NULL, 594 CTLFLAG_PERMANENT, 595 CTLTYPE_INT, "maxptys", 596 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 597 sysctl_kern_maxptys, 0, NULL, 0, 598 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 599 #endif /* NPTY > 0 */ 600 sysctl_createv(clog, 0, NULL, NULL, 601 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 602 CTLTYPE_INT, "maxphys", 603 SYSCTL_DESCR("Maximum raw I/O transfer size"), 604 NULL, MAXPHYS, NULL, 0, 605 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 606 sysctl_createv(clog, 0, NULL, NULL, 607 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 608 CTLTYPE_INT, "sbmax", 609 SYSCTL_DESCR("Maximum socket buffer size"), 610 sysctl_kern_sbmax, 0, NULL, 0, 611 CTL_KERN, KERN_SBMAX, CTL_EOL); 612 sysctl_createv(clog, 0, NULL, NULL, 613 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 614 CTLTYPE_INT, "monotonic_clock", 615 SYSCTL_DESCR("Implementation version of the POSIX " 616 "1003.1b Monotonic Clock Option"), 617 /* XXX _POSIX_VERSION */ 618 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 619 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 620 sysctl_createv(clog, 0, NULL, NULL, 621 CTLFLAG_PERMANENT, 622 CTLTYPE_INT, "urandom", 623 SYSCTL_DESCR("Random integer value"), 624 sysctl_kern_urnd, 0, NULL, 0, 625 CTL_KERN, KERN_URND, CTL_EOL); 626 sysctl_createv(clog, 0, NULL, NULL, 627 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 628 CTLTYPE_INT, "labelsector", 629 SYSCTL_DESCR("Sector number containing the disklabel"), 630 NULL, LABELSECTOR, NULL, 0, 631 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 632 sysctl_createv(clog, 0, NULL, NULL, 633 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 634 CTLTYPE_INT, "labeloffset", 635 SYSCTL_DESCR("Offset of the disklabel within the " 636 "sector"), 637 NULL, LABELOFFSET, NULL, 0, 638 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 639 sysctl_createv(clog, 0, NULL, NULL, 640 CTLFLAG_PERMANENT, 641 CTLTYPE_NODE, "lwp", 642 SYSCTL_DESCR("System-wide LWP information"), 643 sysctl_kern_lwp, 0, NULL, 0, 644 CTL_KERN, KERN_LWP, CTL_EOL); 645 sysctl_createv(clog, 0, NULL, NULL, 646 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 647 CTLTYPE_INT, "forkfsleep", 648 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 649 "to process limits"), 650 sysctl_kern_forkfsleep, 0, NULL, 0, 651 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 652 sysctl_createv(clog, 0, NULL, NULL, 653 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 654 CTLTYPE_INT, "posix_threads", 655 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 656 "Threads option to which the system " 657 "attempts to conform"), 658 /* XXX _POSIX_VERSION */ 659 NULL, _POSIX_THREADS, NULL, 0, 660 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 661 sysctl_createv(clog, 0, NULL, NULL, 662 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 663 CTLTYPE_INT, "posix_semaphores", 664 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 665 "Semaphores option to which the system " 666 "attempts to conform"), NULL, 667 #ifdef P1003_1B_SEMAPHORE 668 200112, 669 #else /* P1003_1B_SEMAPHORE */ 670 0, 671 #endif /* P1003_1B_SEMAPHORE */ 672 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 673 sysctl_createv(clog, 0, NULL, NULL, 674 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 675 CTLTYPE_INT, "posix_barriers", 676 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 677 "Barriers option to which the system " 678 "attempts to conform"), 679 /* XXX _POSIX_VERSION */ 680 NULL, _POSIX_BARRIERS, NULL, 0, 681 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 682 sysctl_createv(clog, 0, NULL, NULL, 683 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 684 CTLTYPE_INT, "posix_timers", 685 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 686 "Timers option to which the system " 687 "attempts to conform"), 688 /* XXX _POSIX_VERSION */ 689 NULL, _POSIX_TIMERS, NULL, 0, 690 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 691 sysctl_createv(clog, 0, NULL, NULL, 692 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 693 CTLTYPE_INT, "posix_spin_locks", 694 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 695 "Locks option to which the system attempts " 696 "to conform"), 697 /* XXX _POSIX_VERSION */ 698 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 699 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 700 sysctl_createv(clog, 0, NULL, NULL, 701 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 702 CTLTYPE_INT, "posix_reader_writer_locks", 703 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 704 "Read-Write Locks option to which the " 705 "system attempts to conform"), 706 /* XXX _POSIX_VERSION */ 707 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 708 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 709 sysctl_createv(clog, 0, NULL, NULL, 710 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 711 CTLTYPE_INT, "dump_on_panic", 712 SYSCTL_DESCR("Perform a crash dump on system panic"), 713 NULL, 0, &dumponpanic, 0, 714 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 715 sysctl_createv(clog, 0, NULL, NULL, 716 CTLFLAG_PERMANENT, 717 CTLTYPE_INT, "root_partition", 718 SYSCTL_DESCR("Root partition on the root device"), 719 sysctl_kern_root_partition, 0, NULL, 0, 720 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 721 sysctl_createv(clog, 0, NULL, NULL, 722 CTLFLAG_PERMANENT, 723 CTLTYPE_STRUCT, "drivers", 724 SYSCTL_DESCR("List of all drivers with block and " 725 "character device numbers"), 726 sysctl_kern_drivers, 0, NULL, 0, 727 CTL_KERN, KERN_DRIVERS, CTL_EOL); 728 sysctl_createv(clog, 0, NULL, NULL, 729 CTLFLAG_PERMANENT, 730 CTLTYPE_STRUCT, "file2", 731 SYSCTL_DESCR("System open file table"), 732 sysctl_kern_file2, 0, NULL, 0, 733 CTL_KERN, KERN_FILE2, CTL_EOL); 734 #ifdef VERIFIED_EXEC 735 sysctl_createv(clog, 0, NULL, NULL, 736 CTLFLAG_PERMANENT, 737 CTLTYPE_NODE, "veriexec", 738 SYSCTL_DESCR("Verified Exec"), 739 NULL, 0, NULL, 0, 740 CTL_KERN, KERN_VERIEXEC, CTL_EOL); 741 sysctl_createv(clog, 0, NULL, NULL, 742 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 743 CTLTYPE_INT, "verbose", 744 SYSCTL_DESCR("Verified Exec verbose level"), 745 NULL, 0, &veriexec_verbose, 0, 746 CTL_KERN, KERN_VERIEXEC, VERIEXEC_VERBOSE, 747 CTL_EOL); 748 sysctl_createv(clog, 0, NULL, NULL, 749 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 750 CTLTYPE_INT, "strict", 751 SYSCTL_DESCR("Verified Exec strict level"), 752 sysctl_kern_veriexec, 0, NULL, 0, 753 CTL_KERN, KERN_VERIEXEC, VERIEXEC_STRICT, CTL_EOL); 754 sysctl_createv(clog, 0, NULL, NULL, 755 CTLFLAG_PERMANENT, 756 CTLTYPE_STRING, "algorithms", 757 SYSCTL_DESCR("Verified Exec supported hashing " 758 "algorithms"), 759 sysctl_kern_veriexec, 0, NULL, 0, 760 CTL_KERN, KERN_VERIEXEC, VERIEXEC_ALGORITHMS, CTL_EOL); 761 #endif /* VERIFIED_EXEC */ 762 } 763 764 SYSCTL_SETUP(sysctl_kern_proc_setup, 765 "sysctl kern.proc/proc2/proc_args subtree setup") 766 { 767 768 sysctl_createv(clog, 0, NULL, NULL, 769 CTLFLAG_PERMANENT, 770 CTLTYPE_NODE, "kern", NULL, 771 NULL, 0, NULL, 0, 772 CTL_KERN, CTL_EOL); 773 774 sysctl_createv(clog, 0, NULL, NULL, 775 CTLFLAG_PERMANENT, 776 CTLTYPE_NODE, "proc", 777 SYSCTL_DESCR("System-wide process information"), 778 sysctl_doeproc, 0, NULL, 0, 779 CTL_KERN, KERN_PROC, CTL_EOL); 780 sysctl_createv(clog, 0, NULL, NULL, 781 CTLFLAG_PERMANENT, 782 CTLTYPE_NODE, "proc2", 783 SYSCTL_DESCR("Machine-independent process information"), 784 sysctl_doeproc, 0, NULL, 0, 785 CTL_KERN, KERN_PROC2, CTL_EOL); 786 sysctl_createv(clog, 0, NULL, NULL, 787 CTLFLAG_PERMANENT, 788 CTLTYPE_NODE, "proc_args", 789 SYSCTL_DESCR("Process argument information"), 790 sysctl_kern_proc_args, 0, NULL, 0, 791 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 792 793 /* 794 "nodes" under these: 795 796 KERN_PROC_ALL 797 KERN_PROC_PID pid 798 KERN_PROC_PGRP pgrp 799 KERN_PROC_SESSION sess 800 KERN_PROC_TTY tty 801 KERN_PROC_UID uid 802 KERN_PROC_RUID uid 803 KERN_PROC_GID gid 804 KERN_PROC_RGID gid 805 806 all in all, probably not worth the effort... 807 */ 808 } 809 810 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 811 { 812 u_int u; 813 u_quad_t q; 814 815 sysctl_createv(clog, 0, NULL, NULL, 816 CTLFLAG_PERMANENT, 817 CTLTYPE_NODE, "hw", NULL, 818 NULL, 0, NULL, 0, 819 CTL_HW, CTL_EOL); 820 821 sysctl_createv(clog, 0, NULL, NULL, 822 CTLFLAG_PERMANENT, 823 CTLTYPE_STRING, "machine", 824 SYSCTL_DESCR("Machine class"), 825 NULL, 0, machine, 0, 826 CTL_HW, HW_MACHINE, CTL_EOL); 827 sysctl_createv(clog, 0, NULL, NULL, 828 CTLFLAG_PERMANENT, 829 CTLTYPE_STRING, "model", 830 SYSCTL_DESCR("Machine model"), 831 NULL, 0, cpu_model, 0, 832 CTL_HW, HW_MODEL, CTL_EOL); 833 sysctl_createv(clog, 0, NULL, NULL, 834 CTLFLAG_PERMANENT, 835 CTLTYPE_INT, "ncpu", 836 SYSCTL_DESCR("Number of active CPUs"), 837 sysctl_hw_ncpu, 0, NULL, 0, 838 CTL_HW, HW_NCPU, CTL_EOL); 839 sysctl_createv(clog, 0, NULL, NULL, 840 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 841 CTLTYPE_INT, "byteorder", 842 SYSCTL_DESCR("System byte order"), 843 NULL, BYTE_ORDER, NULL, 0, 844 CTL_HW, HW_BYTEORDER, CTL_EOL); 845 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 846 UINT_MAX : physmem * PAGE_SIZE; 847 sysctl_createv(clog, 0, NULL, NULL, 848 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 849 CTLTYPE_INT, "physmem", 850 SYSCTL_DESCR("Bytes of physical memory"), 851 NULL, u, NULL, 0, 852 CTL_HW, HW_PHYSMEM, CTL_EOL); 853 sysctl_createv(clog, 0, NULL, NULL, 854 CTLFLAG_PERMANENT, 855 CTLTYPE_INT, "usermem", 856 SYSCTL_DESCR("Bytes of non-kernel memory"), 857 sysctl_hw_usermem, 0, NULL, 0, 858 CTL_HW, HW_USERMEM, CTL_EOL); 859 sysctl_createv(clog, 0, NULL, NULL, 860 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 861 CTLTYPE_INT, "pagesize", 862 SYSCTL_DESCR("Software page size"), 863 NULL, PAGE_SIZE, NULL, 0, 864 CTL_HW, HW_PAGESIZE, CTL_EOL); 865 sysctl_createv(clog, 0, NULL, NULL, 866 CTLFLAG_PERMANENT, 867 CTLTYPE_STRING, "disknames", 868 SYSCTL_DESCR("List of disk devices present"), 869 sysctl_hw_disknames, 0, NULL, 0, 870 CTL_HW, HW_DISKNAMES, CTL_EOL); 871 sysctl_createv(clog, 0, NULL, NULL, 872 CTLFLAG_PERMANENT, 873 CTLTYPE_STRUCT, "diskstats", 874 SYSCTL_DESCR("Statistics on disk operation"), 875 sysctl_hw_diskstats, 0, NULL, 0, 876 CTL_HW, HW_DISKSTATS, CTL_EOL); 877 sysctl_createv(clog, 0, NULL, NULL, 878 CTLFLAG_PERMANENT, 879 CTLTYPE_STRING, "machine_arch", 880 SYSCTL_DESCR("Machine CPU class"), 881 NULL, 0, machine_arch, 0, 882 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 883 sysctl_createv(clog, 0, NULL, NULL, 884 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 885 CTLTYPE_INT, "alignbytes", 886 SYSCTL_DESCR("Alignment constraint for all possible " 887 "data types"), 888 NULL, ALIGNBYTES, NULL, 0, 889 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 890 sysctl_createv(clog, 0, NULL, NULL, 891 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 892 CTLTYPE_STRING, "cnmagic", 893 SYSCTL_DESCR("Console magic key sequence"), 894 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 895 CTL_HW, HW_CNMAGIC, CTL_EOL); 896 q = (u_quad_t)physmem * PAGE_SIZE; 897 sysctl_createv(clog, 0, NULL, NULL, 898 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 899 CTLTYPE_QUAD, "physmem64", 900 SYSCTL_DESCR("Bytes of physical memory"), 901 NULL, q, NULL, 0, 902 CTL_HW, HW_PHYSMEM64, CTL_EOL); 903 sysctl_createv(clog, 0, NULL, NULL, 904 CTLFLAG_PERMANENT, 905 CTLTYPE_QUAD, "usermem64", 906 SYSCTL_DESCR("Bytes of non-kernel memory"), 907 sysctl_hw_usermem, 0, NULL, 0, 908 CTL_HW, HW_USERMEM64, CTL_EOL); 909 } 910 911 #ifdef DEBUG 912 /* 913 * Debugging related system variables. 914 */ 915 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 916 struct ctldebug debug5, debug6, debug7, debug8, debug9; 917 struct ctldebug debug10, debug11, debug12, debug13, debug14; 918 struct ctldebug debug15, debug16, debug17, debug18, debug19; 919 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 920 &debug0, &debug1, &debug2, &debug3, &debug4, 921 &debug5, &debug6, &debug7, &debug8, &debug9, 922 &debug10, &debug11, &debug12, &debug13, &debug14, 923 &debug15, &debug16, &debug17, &debug18, &debug19, 924 }; 925 926 /* 927 * this setup routine is a replacement for debug_sysctl() 928 * 929 * note that it creates several nodes per defined debug variable 930 */ 931 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 932 { 933 struct ctldebug *cdp; 934 char nodename[20]; 935 int i; 936 937 /* 938 * two ways here: 939 * 940 * the "old" way (debug.name -> value) which was emulated by 941 * the sysctl(8) binary 942 * 943 * the new way, which the sysctl(8) binary was actually using 944 945 node debug 946 node debug.0 947 string debug.0.name 948 int debug.0.value 949 int debug.name 950 951 */ 952 953 sysctl_createv(clog, 0, NULL, NULL, 954 CTLFLAG_PERMANENT, 955 CTLTYPE_NODE, "debug", NULL, 956 NULL, 0, NULL, 0, 957 CTL_DEBUG, CTL_EOL); 958 959 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 960 cdp = debugvars[i]; 961 if (cdp->debugname == NULL || cdp->debugvar == NULL) 962 continue; 963 964 snprintf(nodename, sizeof(nodename), "debug%d", i); 965 sysctl_createv(clog, 0, NULL, NULL, 966 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 967 CTLTYPE_NODE, nodename, NULL, 968 NULL, 0, NULL, 0, 969 CTL_DEBUG, i, CTL_EOL); 970 sysctl_createv(clog, 0, NULL, NULL, 971 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 972 CTLTYPE_STRING, "name", NULL, 973 NULL, 0, cdp->debugname, 0, 974 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 975 sysctl_createv(clog, 0, NULL, NULL, 976 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 977 CTLTYPE_INT, "value", NULL, 978 NULL, 0, cdp->debugvar, 0, 979 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 980 sysctl_createv(clog, 0, NULL, NULL, 981 CTLFLAG_PERMANENT, 982 CTLTYPE_INT, cdp->debugname, NULL, 983 NULL, 0, cdp->debugvar, 0, 984 CTL_DEBUG, CTL_CREATE, CTL_EOL); 985 } 986 } 987 #endif /* DEBUG */ 988 989 /* 990 * ******************************************************************** 991 * section 2: private node-specific helper routines. 992 * ******************************************************************** 993 */ 994 995 /* 996 * sysctl helper routine for kern.maxvnodes. drain vnodes if 997 * new value is lower than desiredvnodes and then calls reinit 998 * routines that needs to adjust to the new value. 999 */ 1000 static int 1001 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1002 { 1003 int error, new_vnodes, old_vnodes; 1004 struct sysctlnode node; 1005 1006 new_vnodes = desiredvnodes; 1007 node = *rnode; 1008 node.sysctl_data = &new_vnodes; 1009 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1010 if (error || newp == NULL) 1011 return (error); 1012 1013 old_vnodes = desiredvnodes; 1014 desiredvnodes = new_vnodes; 1015 if (new_vnodes < old_vnodes) { 1016 error = vfs_drainvnodes(new_vnodes, l->l_proc); 1017 if (error) { 1018 desiredvnodes = old_vnodes; 1019 return (error); 1020 } 1021 } 1022 vfs_reinit(); 1023 nchreinit(); 1024 1025 return (0); 1026 } 1027 1028 /* 1029 * sysctl helper routine for rtc_offset - set time after changes 1030 */ 1031 static int 1032 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1033 { 1034 struct timeval tv, delta; 1035 int s, error, new_rtc_offset; 1036 struct sysctlnode node; 1037 1038 new_rtc_offset = rtc_offset; 1039 node = *rnode; 1040 node.sysctl_data = &new_rtc_offset; 1041 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1042 if (error || newp == NULL) 1043 return (error); 1044 1045 if (securelevel > 0) 1046 return (EPERM); 1047 if (rtc_offset == new_rtc_offset) 1048 return (0); 1049 1050 /* if we change the offset, adjust the time */ 1051 s = splclock(); 1052 tv = time; 1053 splx(s); 1054 delta.tv_sec = 60*(new_rtc_offset - rtc_offset); 1055 delta.tv_usec = 0; 1056 timeradd(&tv, &delta, &tv); 1057 rtc_offset = new_rtc_offset; 1058 settime(&tv); 1059 1060 return (0); 1061 } 1062 1063 /* 1064 * sysctl helper routine for kern.maxvnodes. ensures that the new 1065 * values are not too low or too high. 1066 */ 1067 static int 1068 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1069 { 1070 int error, nmaxproc; 1071 struct sysctlnode node; 1072 1073 nmaxproc = maxproc; 1074 node = *rnode; 1075 node.sysctl_data = &nmaxproc; 1076 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1077 if (error || newp == NULL) 1078 return (error); 1079 1080 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1081 return (EINVAL); 1082 #ifdef __HAVE_CPU_MAXPROC 1083 if (nmaxproc > cpu_maxproc()) 1084 return (EINVAL); 1085 #endif 1086 maxproc = nmaxproc; 1087 1088 return (0); 1089 } 1090 1091 /* 1092 * sysctl helper routine for kern.securelevel. ensures that the value 1093 * only rises unless the caller has pid 1 (assumed to be init). 1094 */ 1095 static int 1096 sysctl_kern_securelevel(SYSCTLFN_ARGS) 1097 { 1098 int newsecurelevel, error; 1099 struct sysctlnode node; 1100 1101 newsecurelevel = securelevel; 1102 node = *rnode; 1103 node.sysctl_data = &newsecurelevel; 1104 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1105 if (error || newp == NULL) 1106 return (error); 1107 1108 if (newsecurelevel < securelevel && l && l->l_proc->p_pid != 1) 1109 return (EPERM); 1110 securelevel = newsecurelevel; 1111 1112 return (error); 1113 } 1114 1115 /* 1116 * sysctl helper function for kern.hostid. the hostid is a long, but 1117 * we export it as an int, so we need to give it a little help. 1118 */ 1119 static int 1120 sysctl_kern_hostid(SYSCTLFN_ARGS) 1121 { 1122 int error, inthostid; 1123 struct sysctlnode node; 1124 1125 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1126 node = *rnode; 1127 node.sysctl_data = &inthostid; 1128 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1129 if (error || newp == NULL) 1130 return (error); 1131 1132 hostid = (unsigned)inthostid; 1133 1134 return (0); 1135 } 1136 1137 /* 1138 * sysctl helper function for kern.hostname and kern.domainnname. 1139 * resets the relevant recorded length when the underlying name is 1140 * changed. 1141 */ 1142 static int 1143 sysctl_setlen(SYSCTLFN_ARGS) 1144 { 1145 int error; 1146 1147 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1148 if (error || newp == NULL) 1149 return (error); 1150 1151 switch (rnode->sysctl_num) { 1152 case KERN_HOSTNAME: 1153 hostnamelen = strlen((const char*)rnode->sysctl_data); 1154 break; 1155 case KERN_DOMAINNAME: 1156 domainnamelen = strlen((const char*)rnode->sysctl_data); 1157 break; 1158 } 1159 1160 return (0); 1161 } 1162 1163 /* 1164 * sysctl helper routine for kern.clockrate. assembles a struct on 1165 * the fly to be returned to the caller. 1166 */ 1167 static int 1168 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1169 { 1170 struct clockinfo clkinfo; 1171 struct sysctlnode node; 1172 1173 clkinfo.tick = tick; 1174 clkinfo.tickadj = tickadj; 1175 clkinfo.hz = hz; 1176 clkinfo.profhz = profhz; 1177 clkinfo.stathz = stathz ? stathz : hz; 1178 1179 node = *rnode; 1180 node.sysctl_data = &clkinfo; 1181 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1182 } 1183 1184 1185 /* 1186 * sysctl helper routine for kern.file pseudo-subtree. 1187 */ 1188 static int 1189 sysctl_kern_file(SYSCTLFN_ARGS) 1190 { 1191 int error; 1192 size_t buflen; 1193 struct file *fp; 1194 char *start, *where; 1195 1196 start = where = oldp; 1197 buflen = *oldlenp; 1198 if (where == NULL) { 1199 /* 1200 * overestimate by 10 files 1201 */ 1202 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1203 return (0); 1204 } 1205 1206 /* 1207 * first copyout filehead 1208 */ 1209 if (buflen < sizeof(filehead)) { 1210 *oldlenp = 0; 1211 return (0); 1212 } 1213 error = copyout(&filehead, where, sizeof(filehead)); 1214 if (error) 1215 return (error); 1216 buflen -= sizeof(filehead); 1217 where += sizeof(filehead); 1218 1219 /* 1220 * followed by an array of file structures 1221 */ 1222 LIST_FOREACH(fp, &filehead, f_list) { 1223 if (buflen < sizeof(struct file)) { 1224 *oldlenp = where - start; 1225 return (ENOMEM); 1226 } 1227 error = copyout(fp, where, sizeof(struct file)); 1228 if (error) 1229 return (error); 1230 buflen -= sizeof(struct file); 1231 where += sizeof(struct file); 1232 } 1233 *oldlenp = where - start; 1234 return (0); 1235 } 1236 1237 /* 1238 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1239 * asserts that the assigned value is in the correct range. 1240 */ 1241 static int 1242 sysctl_kern_autonice(SYSCTLFN_ARGS) 1243 { 1244 int error, t = 0; 1245 struct sysctlnode node; 1246 1247 node = *rnode; 1248 t = *(int*)node.sysctl_data; 1249 node.sysctl_data = &t; 1250 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1251 if (error || newp == NULL) 1252 return (error); 1253 1254 switch (node.sysctl_num) { 1255 case KERN_AUTONICETIME: 1256 if (t >= 0) 1257 autonicetime = t; 1258 break; 1259 case KERN_AUTONICEVAL: 1260 if (t < PRIO_MIN) 1261 t = PRIO_MIN; 1262 else if (t > PRIO_MAX) 1263 t = PRIO_MAX; 1264 autoniceval = t; 1265 break; 1266 } 1267 1268 return (0); 1269 } 1270 1271 /* 1272 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1273 * former it merely checks the message buffer is set up. for the latter, 1274 * it also copies out the data if necessary. 1275 */ 1276 static int 1277 sysctl_msgbuf(SYSCTLFN_ARGS) 1278 { 1279 char *where = oldp; 1280 size_t len, maxlen; 1281 long beg, end; 1282 int error; 1283 1284 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1285 msgbufenabled = 0; 1286 return (ENXIO); 1287 } 1288 1289 switch (rnode->sysctl_num) { 1290 case KERN_MSGBUFSIZE: { 1291 struct sysctlnode node = *rnode; 1292 int msg_bufs = (int)msgbufp->msg_bufs; 1293 node.sysctl_data = &msg_bufs; 1294 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1295 } 1296 case KERN_MSGBUF: 1297 break; 1298 default: 1299 return (EOPNOTSUPP); 1300 } 1301 1302 if (newp != NULL) 1303 return (EPERM); 1304 1305 if (oldp == NULL) { 1306 /* always return full buffer size */ 1307 *oldlenp = msgbufp->msg_bufs; 1308 return (0); 1309 } 1310 1311 error = 0; 1312 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1313 1314 /* 1315 * First, copy from the write pointer to the end of 1316 * message buffer. 1317 */ 1318 beg = msgbufp->msg_bufx; 1319 end = msgbufp->msg_bufs; 1320 while (maxlen > 0) { 1321 len = MIN(end - beg, maxlen); 1322 if (len == 0) 1323 break; 1324 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1325 if (error) 1326 break; 1327 where += len; 1328 maxlen -= len; 1329 1330 /* 1331 * ... then, copy from the beginning of message buffer to 1332 * the write pointer. 1333 */ 1334 beg = 0; 1335 end = msgbufp->msg_bufx; 1336 } 1337 1338 return (error); 1339 } 1340 1341 /* 1342 * sysctl helper routine for kern.defcorename. in the case of a new 1343 * string being assigned, check that it's not a zero-length string. 1344 * (XXX the check in -current doesn't work, but do we really care?) 1345 */ 1346 static int 1347 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1348 { 1349 int error; 1350 char newcorename[MAXPATHLEN]; 1351 struct sysctlnode node; 1352 1353 node = *rnode; 1354 node.sysctl_data = &newcorename[0]; 1355 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1356 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1357 if (error || newp == NULL) 1358 return (error); 1359 1360 /* 1361 * when sysctl_lookup() deals with a string, it's guaranteed 1362 * to come back nul terminated. so there. :) 1363 */ 1364 if (strlen(newcorename) == 0) 1365 return (EINVAL); 1366 1367 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1368 1369 return (0); 1370 } 1371 1372 /* 1373 * sysctl helper routine for kern.cp_time node. adds up cpu time 1374 * across all cpus. 1375 */ 1376 static int 1377 sysctl_kern_cptime(SYSCTLFN_ARGS) 1378 { 1379 struct sysctlnode node = *rnode; 1380 1381 #ifndef MULTIPROCESSOR 1382 1383 if (namelen == 1) { 1384 if (name[0] != 0) 1385 return (ENOENT); 1386 /* 1387 * you're allowed to ask for the zero'th processor 1388 */ 1389 name++; 1390 namelen--; 1391 } 1392 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1393 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1394 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1395 1396 #else /* MULTIPROCESSOR */ 1397 1398 u_int64_t *cp_time = NULL; 1399 int error, n = sysctl_ncpus(), i; 1400 struct cpu_info *ci; 1401 CPU_INFO_ITERATOR cii; 1402 1403 /* 1404 * if you specifically pass a buffer that is the size of the 1405 * sum, or if you are probing for the size, you get the "sum" 1406 * of cp_time (and the size thereof) across all processors. 1407 * 1408 * alternately, you can pass an additional mib number and get 1409 * cp_time for that particular processor. 1410 */ 1411 switch (namelen) { 1412 case 0: 1413 if (*oldlenp == sizeof(u_int64_t) * CPUSTATES || oldp == NULL) { 1414 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1415 n = -1; /* SUM */ 1416 } 1417 else { 1418 node.sysctl_size = n * sizeof(u_int64_t) * CPUSTATES; 1419 n = -2; /* ALL */ 1420 } 1421 break; 1422 case 1: 1423 if (name[0] < 0 || name[0] >= n) 1424 return (ENOENT); /* ENOSUCHPROCESSOR */ 1425 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1426 n = name[0]; 1427 /* 1428 * adjust these so that sysctl_lookup() will be happy 1429 */ 1430 name++; 1431 namelen--; 1432 break; 1433 default: 1434 return (EINVAL); 1435 } 1436 1437 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1438 if (cp_time == NULL) 1439 return (ENOMEM); 1440 node.sysctl_data = cp_time; 1441 memset(cp_time, 0, node.sysctl_size); 1442 1443 for (CPU_INFO_FOREACH(cii, ci)) { 1444 if (n <= 0) 1445 for (i = 0; i < CPUSTATES; i++) 1446 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1447 /* 1448 * if a specific processor was requested and we just 1449 * did it, we're done here 1450 */ 1451 if (n == 0) 1452 break; 1453 /* 1454 * if doing "all", skip to next cp_time set for next processor 1455 */ 1456 if (n == -2) 1457 cp_time += CPUSTATES; 1458 /* 1459 * if we're doing a specific processor, we're one 1460 * processor closer 1461 */ 1462 if (n > 0) 1463 n--; 1464 } 1465 1466 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1467 free(node.sysctl_data, M_TEMP); 1468 return (error); 1469 1470 #endif /* MULTIPROCESSOR */ 1471 } 1472 1473 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1474 /* 1475 * sysctl helper routine for kern.sysvipc_info subtree. 1476 */ 1477 1478 #define FILL_PERM(src, dst) do { \ 1479 (dst)._key = (src)._key; \ 1480 (dst).uid = (src).uid; \ 1481 (dst).gid = (src).gid; \ 1482 (dst).cuid = (src).cuid; \ 1483 (dst).cgid = (src).cgid; \ 1484 (dst).mode = (src).mode; \ 1485 (dst)._seq = (src)._seq; \ 1486 } while (/*CONSTCOND*/ 0); 1487 #define FILL_MSG(src, dst) do { \ 1488 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1489 (dst).msg_qnum = (src).msg_qnum; \ 1490 (dst).msg_qbytes = (src).msg_qbytes; \ 1491 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1492 (dst).msg_lspid = (src).msg_lspid; \ 1493 (dst).msg_lrpid = (src).msg_lrpid; \ 1494 (dst).msg_stime = (src).msg_stime; \ 1495 (dst).msg_rtime = (src).msg_rtime; \ 1496 (dst).msg_ctime = (src).msg_ctime; \ 1497 } while (/*CONSTCOND*/ 0) 1498 #define FILL_SEM(src, dst) do { \ 1499 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1500 (dst).sem_nsems = (src).sem_nsems; \ 1501 (dst).sem_otime = (src).sem_otime; \ 1502 (dst).sem_ctime = (src).sem_ctime; \ 1503 } while (/*CONSTCOND*/ 0) 1504 #define FILL_SHM(src, dst) do { \ 1505 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1506 (dst).shm_segsz = (src).shm_segsz; \ 1507 (dst).shm_lpid = (src).shm_lpid; \ 1508 (dst).shm_cpid = (src).shm_cpid; \ 1509 (dst).shm_atime = (src).shm_atime; \ 1510 (dst).shm_dtime = (src).shm_dtime; \ 1511 (dst).shm_ctime = (src).shm_ctime; \ 1512 (dst).shm_nattch = (src).shm_nattch; \ 1513 } while (/*CONSTCOND*/ 0) 1514 1515 static int 1516 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1517 { 1518 void *where = oldp; 1519 size_t *sizep = oldlenp; 1520 #ifdef SYSVMSG 1521 struct msg_sysctl_info *msgsi = NULL; 1522 #endif 1523 #ifdef SYSVSEM 1524 struct sem_sysctl_info *semsi = NULL; 1525 #endif 1526 #ifdef SYSVSHM 1527 struct shm_sysctl_info *shmsi = NULL; 1528 #endif 1529 size_t infosize, dssize, tsize, buflen; 1530 void *buf = NULL; 1531 char *start; 1532 int32_t nds; 1533 int i, error, ret; 1534 1535 if (namelen != 1) 1536 return (EINVAL); 1537 1538 start = where; 1539 buflen = *sizep; 1540 1541 switch (*name) { 1542 case KERN_SYSVIPC_MSG_INFO: 1543 #ifdef SYSVMSG 1544 infosize = sizeof(msgsi->msginfo); 1545 nds = msginfo.msgmni; 1546 dssize = sizeof(msgsi->msgids[0]); 1547 break; 1548 #else 1549 return (EINVAL); 1550 #endif 1551 case KERN_SYSVIPC_SEM_INFO: 1552 #ifdef SYSVSEM 1553 infosize = sizeof(semsi->seminfo); 1554 nds = seminfo.semmni; 1555 dssize = sizeof(semsi->semids[0]); 1556 break; 1557 #else 1558 return (EINVAL); 1559 #endif 1560 case KERN_SYSVIPC_SHM_INFO: 1561 #ifdef SYSVSHM 1562 infosize = sizeof(shmsi->shminfo); 1563 nds = shminfo.shmmni; 1564 dssize = sizeof(shmsi->shmids[0]); 1565 break; 1566 #else 1567 return (EINVAL); 1568 #endif 1569 default: 1570 return (EINVAL); 1571 } 1572 /* 1573 * Round infosize to 64 bit boundary if requesting more than just 1574 * the info structure or getting the total data size. 1575 */ 1576 if (where == NULL || *sizep > infosize) 1577 infosize = ((infosize + 7) / 8) * 8; 1578 tsize = infosize + nds * dssize; 1579 1580 /* Return just the total size required. */ 1581 if (where == NULL) { 1582 *sizep = tsize; 1583 return (0); 1584 } 1585 1586 /* Not enough room for even the info struct. */ 1587 if (buflen < infosize) { 1588 *sizep = 0; 1589 return (ENOMEM); 1590 } 1591 buf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1592 memset(buf, 0, min(tsize, buflen)); 1593 1594 switch (*name) { 1595 #ifdef SYSVMSG 1596 case KERN_SYSVIPC_MSG_INFO: 1597 msgsi = (struct msg_sysctl_info *)buf; 1598 msgsi->msginfo = msginfo; 1599 break; 1600 #endif 1601 #ifdef SYSVSEM 1602 case KERN_SYSVIPC_SEM_INFO: 1603 semsi = (struct sem_sysctl_info *)buf; 1604 semsi->seminfo = seminfo; 1605 break; 1606 #endif 1607 #ifdef SYSVSHM 1608 case KERN_SYSVIPC_SHM_INFO: 1609 shmsi = (struct shm_sysctl_info *)buf; 1610 shmsi->shminfo = shminfo; 1611 break; 1612 #endif 1613 } 1614 buflen -= infosize; 1615 1616 ret = 0; 1617 if (buflen > 0) { 1618 /* Fill in the IPC data structures. */ 1619 for (i = 0; i < nds; i++) { 1620 if (buflen < dssize) { 1621 ret = ENOMEM; 1622 break; 1623 } 1624 switch (*name) { 1625 #ifdef SYSVMSG 1626 case KERN_SYSVIPC_MSG_INFO: 1627 FILL_MSG(msqids[i], msgsi->msgids[i]); 1628 break; 1629 #endif 1630 #ifdef SYSVSEM 1631 case KERN_SYSVIPC_SEM_INFO: 1632 FILL_SEM(sema[i], semsi->semids[i]); 1633 break; 1634 #endif 1635 #ifdef SYSVSHM 1636 case KERN_SYSVIPC_SHM_INFO: 1637 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1638 break; 1639 #endif 1640 } 1641 buflen -= dssize; 1642 } 1643 } 1644 *sizep -= buflen; 1645 error = copyout(buf, start, *sizep); 1646 /* If copyout succeeded, use return code set earlier. */ 1647 if (error == 0) 1648 error = ret; 1649 if (buf) 1650 free(buf, M_TEMP); 1651 return (error); 1652 } 1653 1654 #undef FILL_PERM 1655 #undef FILL_MSG 1656 #undef FILL_SEM 1657 #undef FILL_SHM 1658 1659 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1660 1661 #if NPTY > 0 1662 /* 1663 * sysctl helper routine for kern.maxptys. ensures that any new value 1664 * is acceptable to the pty subsystem. 1665 */ 1666 static int 1667 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1668 { 1669 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1670 int error, max; 1671 struct sysctlnode node; 1672 1673 /* get current value of maxptys */ 1674 max = pty_maxptys(0, 0); 1675 1676 node = *rnode; 1677 node.sysctl_data = &max; 1678 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1679 if (error || newp == NULL) 1680 return (error); 1681 1682 if (max != pty_maxptys(max, 1)) 1683 return (EINVAL); 1684 1685 return (0); 1686 } 1687 #endif /* NPTY > 0 */ 1688 1689 /* 1690 * sysctl helper routine for kern.sbmax. basically just ensures that 1691 * any new value is not too small. 1692 */ 1693 static int 1694 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1695 { 1696 int error, new_sbmax; 1697 struct sysctlnode node; 1698 1699 new_sbmax = sb_max; 1700 node = *rnode; 1701 node.sysctl_data = &new_sbmax; 1702 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1703 if (error || newp == NULL) 1704 return (error); 1705 1706 error = sb_max_set(new_sbmax); 1707 1708 return (error); 1709 } 1710 1711 /* 1712 * sysctl helper routine for kern.urandom node. picks a random number 1713 * for you. 1714 */ 1715 static int 1716 sysctl_kern_urnd(SYSCTLFN_ARGS) 1717 { 1718 #if NRND > 0 1719 int v; 1720 1721 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1722 struct sysctlnode node = *rnode; 1723 node.sysctl_data = &v; 1724 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1725 } 1726 else 1727 return (EIO); /*XXX*/ 1728 #else 1729 return (EOPNOTSUPP); 1730 #endif 1731 } 1732 1733 /* 1734 * sysctl helper routine to do kern.lwp.* work. 1735 */ 1736 static int 1737 sysctl_kern_lwp(SYSCTLFN_ARGS) 1738 { 1739 struct kinfo_lwp klwp; 1740 struct proc *p; 1741 struct lwp *l2; 1742 char *where, *dp; 1743 int pid, elem_size, elem_count; 1744 int buflen, needed, error; 1745 1746 if (namelen == 1 && name[0] == CTL_QUERY) 1747 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1748 1749 dp = where = oldp; 1750 buflen = where != NULL ? *oldlenp : 0; 1751 error = needed = 0; 1752 1753 if (newp != NULL || namelen != 3) 1754 return (EINVAL); 1755 pid = name[0]; 1756 elem_size = name[1]; 1757 elem_count = name[2]; 1758 1759 p = pfind(pid); 1760 if (p == NULL) 1761 return (ESRCH); 1762 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1763 if (buflen >= elem_size && elem_count > 0) { 1764 fill_lwp(l2, &klwp); 1765 /* 1766 * Copy out elem_size, but not larger than 1767 * the size of a struct kinfo_proc2. 1768 */ 1769 error = copyout(&klwp, dp, 1770 min(sizeof(klwp), elem_size)); 1771 if (error) 1772 goto cleanup; 1773 dp += elem_size; 1774 buflen -= elem_size; 1775 elem_count--; 1776 } 1777 needed += elem_size; 1778 } 1779 1780 if (where != NULL) { 1781 *oldlenp = dp - where; 1782 if (needed > *oldlenp) 1783 return (ENOMEM); 1784 } else { 1785 needed += KERN_LWPSLOP; 1786 *oldlenp = needed; 1787 } 1788 return (0); 1789 cleanup: 1790 return (error); 1791 } 1792 1793 /* 1794 * sysctl helper routine for kern.forkfsleep node. ensures that the 1795 * given value is not too large or two small, and is at least one 1796 * timer tick if not zero. 1797 */ 1798 static int 1799 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1800 { 1801 /* userland sees value in ms, internally is in ticks */ 1802 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1803 int error, timo, lsleep; 1804 struct sysctlnode node; 1805 1806 lsleep = forkfsleep * 1000 / hz; 1807 node = *rnode; 1808 node.sysctl_data = &lsleep; 1809 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1810 if (error || newp == NULL) 1811 return (error); 1812 1813 /* refuse negative values, and overly 'long time' */ 1814 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1815 return (EINVAL); 1816 1817 timo = mstohz(lsleep); 1818 1819 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1820 if (lsleep != 0 && timo == 0) 1821 forkfsleep = 1; 1822 else 1823 forkfsleep = timo; 1824 1825 return (0); 1826 } 1827 1828 /* 1829 * sysctl helper routine for kern.root_partition 1830 */ 1831 static int 1832 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1833 { 1834 int rootpart = DISKPART(rootdev); 1835 struct sysctlnode node = *rnode; 1836 1837 node.sysctl_data = &rootpart; 1838 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1839 } 1840 1841 /* 1842 * sysctl helper function for kern.drivers 1843 */ 1844 static int 1845 sysctl_kern_drivers(SYSCTLFN_ARGS) 1846 { 1847 int error; 1848 size_t buflen; 1849 struct kinfo_drivers kd; 1850 char *start, *where; 1851 const char *dname; 1852 int i; 1853 extern struct devsw_conv *devsw_conv; 1854 extern int max_devsw_convs; 1855 1856 if (newp != NULL || namelen != 0) 1857 return (EINVAL); 1858 1859 start = where = oldp; 1860 buflen = *oldlenp; 1861 if (where == NULL) { 1862 *oldlenp = max_devsw_convs * sizeof kd; 1863 return 0; 1864 } 1865 1866 /* 1867 * An array of kinfo_drivers structures 1868 */ 1869 error = 0; 1870 for (i = 0; i < max_devsw_convs; i++) { 1871 dname = devsw_conv[i].d_name; 1872 if (dname == NULL) 1873 continue; 1874 if (buflen < sizeof kd) { 1875 error = ENOMEM; 1876 break; 1877 } 1878 memset(&kd, 0, sizeof(kd)); 1879 kd.d_bmajor = devsw_conv[i].d_bmajor; 1880 kd.d_cmajor = devsw_conv[i].d_cmajor; 1881 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1882 error = copyout(&kd, where, sizeof kd); 1883 if (error != 0) 1884 break; 1885 buflen -= sizeof kd; 1886 where += sizeof kd; 1887 } 1888 *oldlenp = where - start; 1889 return error; 1890 } 1891 1892 /* 1893 * sysctl helper function for kern.file2 1894 */ 1895 static int 1896 sysctl_kern_file2(SYSCTLFN_ARGS) 1897 { 1898 struct proc *p; 1899 struct file *fp; 1900 struct filedesc *fd; 1901 struct kinfo_file kf; 1902 char *dp; 1903 u_int i, op; 1904 size_t len, needed, elem_size, out_size; 1905 int error, arg, elem_count; 1906 1907 if (namelen == 1 && name[0] == CTL_QUERY) 1908 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1909 1910 if (namelen != 4) 1911 return (EINVAL); 1912 1913 error = 0; 1914 dp = oldp; 1915 len = (oldp != NULL) ? *oldlenp : 0; 1916 op = name[0]; 1917 arg = name[1]; 1918 elem_size = name[2]; 1919 elem_count = name[3]; 1920 out_size = MIN(sizeof(kf), elem_size); 1921 needed = 0; 1922 1923 if (elem_size < 1 || elem_count < 0) 1924 return (EINVAL); 1925 1926 switch (op) { 1927 case KERN_FILE_BYFILE: 1928 /* 1929 * doesn't use arg so it must be zero 1930 */ 1931 if (arg != 0) 1932 return (EINVAL); 1933 LIST_FOREACH(fp, &filehead, f_list) { 1934 if (len >= elem_size && elem_count > 0) { 1935 fill_file(&kf, fp, NULL, 0); 1936 error = copyout(&kf, dp, out_size); 1937 if (error) 1938 break; 1939 dp += elem_size; 1940 len -= elem_size; 1941 } 1942 if (elem_count > 0) { 1943 needed += elem_size; 1944 if (elem_count != INT_MAX) 1945 elem_count--; 1946 } 1947 } 1948 break; 1949 case KERN_FILE_BYPID: 1950 if (arg < -1) 1951 /* -1 means all processes */ 1952 return (EINVAL); 1953 proclist_lock_read(); 1954 PROCLIST_FOREACH(p, &allproc) { 1955 if (p->p_stat == SIDL) 1956 /* skip embryonic processes */ 1957 continue; 1958 if (arg > 0 && p->p_pid != arg) 1959 /* pick only the one we want */ 1960 /* XXX want 0 to mean "kernel files" */ 1961 continue; 1962 fd = p->p_fd; 1963 for (i = 0; i < fd->fd_nfiles; i++) { 1964 fp = fd->fd_ofiles[i]; 1965 if (fp == NULL || !FILE_IS_USABLE(fp)) 1966 continue; 1967 if (len >= elem_size && elem_count > 0) { 1968 fill_file(&kf, fd->fd_ofiles[i], 1969 p, i); 1970 error = copyout(&kf, dp, out_size); 1971 if (error) 1972 break; 1973 dp += elem_size; 1974 len -= elem_size; 1975 } 1976 if (elem_count > 0) { 1977 needed += elem_size; 1978 if (elem_count != INT_MAX) 1979 elem_count--; 1980 } 1981 } 1982 } 1983 proclist_unlock_read(); 1984 break; 1985 default: 1986 return (EINVAL); 1987 } 1988 1989 if (oldp == NULL) 1990 needed += KERN_FILESLOP * elem_size; 1991 *oldlenp = needed; 1992 1993 return (error); 1994 } 1995 1996 static void 1997 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 1998 { 1999 2000 memset(kp, 0, sizeof(*kp)); 2001 2002 kp->ki_fileaddr = PTRTOUINT64(fp); 2003 kp->ki_flag = fp->f_flag; 2004 kp->ki_iflags = fp->f_iflags; 2005 kp->ki_ftype = fp->f_type; 2006 kp->ki_count = fp->f_count; 2007 kp->ki_msgcount = fp->f_msgcount; 2008 kp->ki_usecount = fp->f_usecount; 2009 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2010 kp->ki_fuid = fp->f_cred->cr_uid; 2011 kp->ki_fgid = fp->f_cred->cr_gid; 2012 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2013 kp->ki_foffset = fp->f_offset; 2014 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2015 2016 /* vnode information to glue this file to something */ 2017 if (fp->f_type == DTYPE_VNODE) { 2018 struct vnode *vp = (struct vnode *)fp->f_data; 2019 2020 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2021 kp->ki_vsize = vp->v_size; 2022 kp->ki_vtype = vp->v_type; 2023 kp->ki_vtag = vp->v_tag; 2024 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2025 } 2026 2027 /* process information when retrieved via KERN_FILE_BYPID */ 2028 if (p) { 2029 kp->ki_pid = p->p_pid; 2030 kp->ki_fd = i; 2031 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2032 } 2033 } 2034 2035 static int 2036 sysctl_doeproc(SYSCTLFN_ARGS) 2037 { 2038 struct eproc eproc; 2039 struct kinfo_proc2 kproc2; 2040 struct kinfo_proc *dp; 2041 struct proc *p; 2042 const struct proclist_desc *pd; 2043 char *where, *dp2; 2044 int type, op, arg; 2045 u_int elem_size, elem_count; 2046 size_t buflen, needed; 2047 int error; 2048 2049 if (namelen == 1 && name[0] == CTL_QUERY) 2050 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2051 2052 dp = oldp; 2053 dp2 = where = oldp; 2054 buflen = where != NULL ? *oldlenp : 0; 2055 error = 0; 2056 needed = 0; 2057 type = rnode->sysctl_num; 2058 2059 if (type == KERN_PROC) { 2060 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2061 return (EINVAL); 2062 op = name[0]; 2063 if (op != KERN_PROC_ALL) 2064 arg = name[1]; 2065 else 2066 arg = 0; /* Quell compiler warning */ 2067 elem_size = elem_count = 0; /* Ditto */ 2068 } else { 2069 if (namelen != 4) 2070 return (EINVAL); 2071 op = name[0]; 2072 arg = name[1]; 2073 elem_size = name[2]; 2074 elem_count = name[3]; 2075 } 2076 2077 proclist_lock_read(); 2078 2079 pd = proclists; 2080 again: 2081 PROCLIST_FOREACH(p, pd->pd_list) { 2082 /* 2083 * Skip embryonic processes. 2084 */ 2085 if (p->p_stat == SIDL) 2086 continue; 2087 /* 2088 * TODO - make more efficient (see notes below). 2089 * do by session. 2090 */ 2091 switch (op) { 2092 2093 case KERN_PROC_PID: 2094 /* could do this with just a lookup */ 2095 if (p->p_pid != (pid_t)arg) 2096 continue; 2097 break; 2098 2099 case KERN_PROC_PGRP: 2100 /* could do this by traversing pgrp */ 2101 if (p->p_pgrp->pg_id != (pid_t)arg) 2102 continue; 2103 break; 2104 2105 case KERN_PROC_SESSION: 2106 if (p->p_session->s_sid != (pid_t)arg) 2107 continue; 2108 break; 2109 2110 case KERN_PROC_TTY: 2111 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2112 if ((p->p_flag & P_CONTROLT) == 0 || 2113 p->p_session->s_ttyp == NULL || 2114 p->p_session->s_ttyvp != NULL) 2115 continue; 2116 } else if ((p->p_flag & P_CONTROLT) == 0 || 2117 p->p_session->s_ttyp == NULL) { 2118 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2119 continue; 2120 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2121 continue; 2122 break; 2123 2124 case KERN_PROC_UID: 2125 if (p->p_ucred->cr_uid != (uid_t)arg) 2126 continue; 2127 break; 2128 2129 case KERN_PROC_RUID: 2130 if (p->p_cred->p_ruid != (uid_t)arg) 2131 continue; 2132 break; 2133 2134 case KERN_PROC_GID: 2135 if (p->p_ucred->cr_gid != (uid_t)arg) 2136 continue; 2137 break; 2138 2139 case KERN_PROC_RGID: 2140 if (p->p_cred->p_rgid != (uid_t)arg) 2141 continue; 2142 break; 2143 2144 case KERN_PROC_ALL: 2145 /* allow everything */ 2146 break; 2147 2148 default: 2149 error = EINVAL; 2150 goto cleanup; 2151 } 2152 if (type == KERN_PROC) { 2153 if (buflen >= sizeof(struct kinfo_proc)) { 2154 fill_eproc(p, &eproc); 2155 error = copyout(p, &dp->kp_proc, 2156 sizeof(struct proc)); 2157 if (error) 2158 goto cleanup; 2159 error = copyout(&eproc, &dp->kp_eproc, 2160 sizeof(eproc)); 2161 if (error) 2162 goto cleanup; 2163 dp++; 2164 buflen -= sizeof(struct kinfo_proc); 2165 } 2166 needed += sizeof(struct kinfo_proc); 2167 } else { /* KERN_PROC2 */ 2168 if (buflen >= elem_size && elem_count > 0) { 2169 fill_kproc2(p, &kproc2); 2170 /* 2171 * Copy out elem_size, but not larger than 2172 * the size of a struct kinfo_proc2. 2173 */ 2174 error = copyout(&kproc2, dp2, 2175 min(sizeof(kproc2), elem_size)); 2176 if (error) 2177 goto cleanup; 2178 dp2 += elem_size; 2179 buflen -= elem_size; 2180 elem_count--; 2181 } 2182 needed += elem_size; 2183 } 2184 } 2185 pd++; 2186 if (pd->pd_list != NULL) 2187 goto again; 2188 proclist_unlock_read(); 2189 2190 if (where != NULL) { 2191 if (type == KERN_PROC) 2192 *oldlenp = (char *)dp - where; 2193 else 2194 *oldlenp = dp2 - where; 2195 if (needed > *oldlenp) 2196 return (ENOMEM); 2197 } else { 2198 needed += KERN_PROCSLOP; 2199 *oldlenp = needed; 2200 } 2201 return (0); 2202 cleanup: 2203 proclist_unlock_read(); 2204 return (error); 2205 } 2206 2207 /* 2208 * sysctl helper routine for kern.proc_args pseudo-subtree. 2209 */ 2210 static int 2211 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2212 { 2213 struct ps_strings pss; 2214 struct proc *p, *up = l->l_proc; 2215 size_t len, upper_bound, xlen, i; 2216 struct uio auio; 2217 struct iovec aiov; 2218 vaddr_t argv; 2219 pid_t pid; 2220 int nargv, type, error; 2221 char *arg; 2222 char *tmp; 2223 2224 if (namelen == 1 && name[0] == CTL_QUERY) 2225 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2226 2227 if (newp != NULL || namelen != 2) 2228 return (EINVAL); 2229 pid = name[0]; 2230 type = name[1]; 2231 2232 switch (type) { 2233 case KERN_PROC_ARGV: 2234 case KERN_PROC_NARGV: 2235 case KERN_PROC_ENV: 2236 case KERN_PROC_NENV: 2237 /* ok */ 2238 break; 2239 default: 2240 return (EINVAL); 2241 } 2242 2243 /* check pid */ 2244 if ((p = pfind(pid)) == NULL) 2245 return (EINVAL); 2246 2247 /* only root or same user change look at the environment */ 2248 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2249 if (up->p_ucred->cr_uid != 0) { 2250 if (up->p_cred->p_ruid != p->p_cred->p_ruid || 2251 up->p_cred->p_ruid != p->p_cred->p_svuid) 2252 return (EPERM); 2253 } 2254 } 2255 2256 if (oldp == NULL) { 2257 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2258 *oldlenp = sizeof (int); 2259 else 2260 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2261 return (0); 2262 } 2263 2264 /* 2265 * Zombies don't have a stack, so we can't read their psstrings. 2266 * System processes also don't have a user stack. 2267 */ 2268 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) 2269 return (EINVAL); 2270 2271 /* 2272 * Lock the process down in memory. 2273 */ 2274 /* XXXCDC: how should locking work here? */ 2275 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) 2276 return (EFAULT); 2277 2278 p->p_vmspace->vm_refcnt++; /* XXX */ 2279 2280 /* 2281 * Allocate a temporary buffer to hold the arguments. 2282 */ 2283 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2284 2285 /* 2286 * Read in the ps_strings structure. 2287 */ 2288 aiov.iov_base = &pss; 2289 aiov.iov_len = sizeof(pss); 2290 auio.uio_iov = &aiov; 2291 auio.uio_iovcnt = 1; 2292 auio.uio_offset = (vaddr_t)p->p_psstr; 2293 auio.uio_resid = sizeof(pss); 2294 auio.uio_segflg = UIO_SYSSPACE; 2295 auio.uio_rw = UIO_READ; 2296 auio.uio_procp = NULL; 2297 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2298 if (error) 2299 goto done; 2300 2301 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2302 memcpy(&nargv, (char *)&pss + p->p_psnargv, sizeof(nargv)); 2303 else 2304 memcpy(&nargv, (char *)&pss + p->p_psnenv, sizeof(nargv)); 2305 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2306 error = copyout(&nargv, oldp, sizeof(nargv)); 2307 *oldlenp = sizeof(nargv); 2308 goto done; 2309 } 2310 /* 2311 * Now read the address of the argument vector. 2312 */ 2313 switch (type) { 2314 case KERN_PROC_ARGV: 2315 /* XXX compat32 stuff here */ 2316 memcpy(&tmp, (char *)&pss + p->p_psargv, sizeof(tmp)); 2317 break; 2318 case KERN_PROC_ENV: 2319 memcpy(&tmp, (char *)&pss + p->p_psenv, sizeof(tmp)); 2320 break; 2321 default: 2322 return (EINVAL); 2323 } 2324 auio.uio_offset = (off_t)(unsigned long)tmp; 2325 aiov.iov_base = &argv; 2326 aiov.iov_len = sizeof(argv); 2327 auio.uio_iov = &aiov; 2328 auio.uio_iovcnt = 1; 2329 auio.uio_resid = sizeof(argv); 2330 auio.uio_segflg = UIO_SYSSPACE; 2331 auio.uio_rw = UIO_READ; 2332 auio.uio_procp = NULL; 2333 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2334 if (error) 2335 goto done; 2336 2337 /* 2338 * Now copy in the actual argument vector, one page at a time, 2339 * since we don't know how long the vector is (though, we do 2340 * know how many NUL-terminated strings are in the vector). 2341 */ 2342 len = 0; 2343 upper_bound = *oldlenp; 2344 for (; nargv != 0 && len < upper_bound; len += xlen) { 2345 aiov.iov_base = arg; 2346 aiov.iov_len = PAGE_SIZE; 2347 auio.uio_iov = &aiov; 2348 auio.uio_iovcnt = 1; 2349 auio.uio_offset = argv + len; 2350 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2351 auio.uio_resid = xlen; 2352 auio.uio_segflg = UIO_SYSSPACE; 2353 auio.uio_rw = UIO_READ; 2354 auio.uio_procp = NULL; 2355 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2356 if (error) 2357 goto done; 2358 2359 for (i = 0; i < xlen && nargv != 0; i++) { 2360 if (arg[i] == '\0') 2361 nargv--; /* one full string */ 2362 } 2363 2364 /* 2365 * Make sure we don't copyout past the end of the user's 2366 * buffer. 2367 */ 2368 if (len + i > upper_bound) 2369 i = upper_bound - len; 2370 2371 error = copyout(arg, (char *)oldp + len, i); 2372 if (error) 2373 break; 2374 2375 if (nargv == 0) { 2376 len += i; 2377 break; 2378 } 2379 } 2380 *oldlenp = len; 2381 2382 done: 2383 uvmspace_free(p->p_vmspace); 2384 2385 free(arg, M_TEMP); 2386 return (error); 2387 } 2388 2389 /* 2390 * Sysctl helper routine for Verified Exec. 2391 */ 2392 #ifdef VERIFIED_EXEC 2393 static int 2394 sysctl_kern_veriexec(SYSCTLFN_ARGS) 2395 { 2396 int newval, error; 2397 int *var = NULL, raise_only = 0; 2398 struct sysctlnode node; 2399 2400 node = *rnode; 2401 2402 switch (rnode->sysctl_num) { 2403 case VERIEXEC_STRICT: 2404 raise_only = 1; 2405 var = &veriexec_strict; 2406 break; 2407 case VERIEXEC_ALGORITHMS: 2408 node.sysctl_data = veriexec_fp_names; 2409 node.sysctl_size = strlen(veriexec_fp_names) + 1; 2410 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2411 default: 2412 return (EINVAL); 2413 } 2414 2415 if (raise_only && (*var != 0) && (securelevel > 0)) 2416 return (EPERM); 2417 2418 newval = *var; 2419 2420 node.sysctl_data = &newval; 2421 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2422 if (error || newp == NULL) { 2423 return (error); 2424 } 2425 2426 *var = newval; 2427 2428 return (error); 2429 } 2430 #endif /* VERIFIED_EXEC */ 2431 2432 /* 2433 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2434 * calculate on the fly taking into account integer overflow and the 2435 * current wired count. 2436 */ 2437 static int 2438 sysctl_hw_usermem(SYSCTLFN_ARGS) 2439 { 2440 u_int ui; 2441 u_quad_t uq; 2442 struct sysctlnode node; 2443 2444 node = *rnode; 2445 switch (rnode->sysctl_num) { 2446 case HW_USERMEM: 2447 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2448 ui = UINT_MAX; 2449 else 2450 ui *= PAGE_SIZE; 2451 node.sysctl_data = &ui; 2452 break; 2453 case HW_USERMEM64: 2454 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2455 node.sysctl_data = &uq; 2456 break; 2457 default: 2458 return (EINVAL); 2459 } 2460 2461 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2462 } 2463 2464 /* 2465 * sysctl helper routine for kern.cnmagic node. pulls the old value 2466 * out, encoded, and stuffs the new value in for decoding. 2467 */ 2468 static int 2469 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2470 { 2471 char magic[CNS_LEN]; 2472 int error; 2473 struct sysctlnode node; 2474 2475 if (oldp) 2476 cn_get_magic(magic, CNS_LEN); 2477 node = *rnode; 2478 node.sysctl_data = &magic[0]; 2479 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2480 if (error || newp == NULL) 2481 return (error); 2482 2483 return (cn_set_magic(magic)); 2484 } 2485 2486 static int 2487 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2488 { 2489 int ncpu; 2490 struct sysctlnode node; 2491 2492 ncpu = sysctl_ncpus(); 2493 node = *rnode; 2494 node.sysctl_data = &ncpu; 2495 2496 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2497 } 2498 2499 2500 /* 2501 * ******************************************************************** 2502 * section 3: public helper routines that are used for more than one 2503 * node 2504 * ******************************************************************** 2505 */ 2506 2507 /* 2508 * sysctl helper routine for the kern.root_device node and some ports' 2509 * machdep.root_device nodes. 2510 */ 2511 int 2512 sysctl_root_device(SYSCTLFN_ARGS) 2513 { 2514 struct sysctlnode node; 2515 2516 node = *rnode; 2517 node.sysctl_data = root_device->dv_xname; 2518 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2519 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2520 } 2521 2522 /* 2523 * sysctl helper routine for kern.consdev, dependent on the current 2524 * state of the console. also used for machdep.console_device on some 2525 * ports. 2526 */ 2527 int 2528 sysctl_consdev(SYSCTLFN_ARGS) 2529 { 2530 dev_t consdev; 2531 struct sysctlnode node; 2532 2533 if (cn_tab != NULL) 2534 consdev = cn_tab->cn_dev; 2535 else 2536 consdev = NODEV; 2537 node = *rnode; 2538 node.sysctl_data = &consdev; 2539 node.sysctl_size = sizeof(consdev); 2540 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2541 } 2542 2543 /* 2544 * ******************************************************************** 2545 * section 4: support for some helpers 2546 * ******************************************************************** 2547 */ 2548 2549 /* 2550 * Fill in a kinfo_proc2 structure for the specified process. 2551 */ 2552 static void 2553 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2554 { 2555 struct tty *tp; 2556 struct lwp *l; 2557 struct timeval ut, st; 2558 2559 memset(ki, 0, sizeof(*ki)); 2560 2561 ki->p_paddr = PTRTOUINT64(p); 2562 ki->p_fd = PTRTOUINT64(p->p_fd); 2563 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2564 ki->p_stats = PTRTOUINT64(p->p_stats); 2565 ki->p_limit = PTRTOUINT64(p->p_limit); 2566 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2567 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2568 ki->p_sess = PTRTOUINT64(p->p_session); 2569 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2570 ki->p_ru = PTRTOUINT64(p->p_ru); 2571 2572 ki->p_eflag = 0; 2573 ki->p_exitsig = p->p_exitsig; 2574 ki->p_flag = p->p_flag; 2575 2576 ki->p_pid = p->p_pid; 2577 if (p->p_pptr) 2578 ki->p_ppid = p->p_pptr->p_pid; 2579 else 2580 ki->p_ppid = 0; 2581 ki->p_sid = p->p_session->s_sid; 2582 ki->p__pgid = p->p_pgrp->pg_id; 2583 2584 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2585 2586 ki->p_uid = p->p_ucred->cr_uid; 2587 ki->p_ruid = p->p_cred->p_ruid; 2588 ki->p_gid = p->p_ucred->cr_gid; 2589 ki->p_rgid = p->p_cred->p_rgid; 2590 ki->p_svuid = p->p_cred->p_svuid; 2591 ki->p_svgid = p->p_cred->p_svgid; 2592 2593 memcpy(ki->p_groups, p->p_cred->pc_ucred->cr_groups, 2594 min(sizeof(ki->p_groups), sizeof(p->p_cred->pc_ucred->cr_groups))); 2595 ki->p_ngroups = p->p_cred->pc_ucred->cr_ngroups; 2596 2597 ki->p_jobc = p->p_pgrp->pg_jobc; 2598 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2599 ki->p_tdev = tp->t_dev; 2600 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2601 ki->p_tsess = PTRTOUINT64(tp->t_session); 2602 } else { 2603 ki->p_tdev = NODEV; 2604 } 2605 2606 ki->p_estcpu = p->p_estcpu; 2607 ki->p_rtime_sec = p->p_rtime.tv_sec; 2608 ki->p_rtime_usec = p->p_rtime.tv_usec; 2609 ki->p_cpticks = p->p_cpticks; 2610 ki->p_pctcpu = p->p_pctcpu; 2611 2612 ki->p_uticks = p->p_uticks; 2613 ki->p_sticks = p->p_sticks; 2614 ki->p_iticks = p->p_iticks; 2615 2616 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2617 ki->p_traceflag = p->p_traceflag; 2618 2619 2620 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2621 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2622 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2623 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2624 2625 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2626 ki->p_realstat = p->p_stat; 2627 ki->p_nice = p->p_nice; 2628 2629 ki->p_xstat = p->p_xstat; 2630 ki->p_acflag = p->p_acflag; 2631 2632 strncpy(ki->p_comm, p->p_comm, 2633 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2634 2635 strncpy(ki->p_login, p->p_session->s_login, 2636 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2637 2638 ki->p_nlwps = p->p_nlwps; 2639 ki->p_nrlwps = p->p_nrlwps; 2640 ki->p_realflag = p->p_flag; 2641 2642 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2643 ki->p_vm_rssize = 0; 2644 ki->p_vm_tsize = 0; 2645 ki->p_vm_dsize = 0; 2646 ki->p_vm_ssize = 0; 2647 l = NULL; 2648 } else { 2649 struct vmspace *vm = p->p_vmspace; 2650 2651 ki->p_vm_rssize = vm_resident_count(vm); 2652 ki->p_vm_tsize = vm->vm_tsize; 2653 ki->p_vm_dsize = vm->vm_dsize; 2654 ki->p_vm_ssize = vm->vm_ssize; 2655 2656 /* Pick a "representative" LWP */ 2657 l = proc_representative_lwp(p); 2658 ki->p_forw = PTRTOUINT64(l->l_forw); 2659 ki->p_back = PTRTOUINT64(l->l_back); 2660 ki->p_addr = PTRTOUINT64(l->l_addr); 2661 ki->p_stat = l->l_stat; 2662 ki->p_flag |= l->l_flag; 2663 ki->p_swtime = l->l_swtime; 2664 ki->p_slptime = l->l_slptime; 2665 if (l->l_stat == LSONPROC) { 2666 KDASSERT(l->l_cpu != NULL); 2667 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2668 } else 2669 ki->p_schedflags = 0; 2670 ki->p_holdcnt = l->l_holdcnt; 2671 ki->p_priority = l->l_priority; 2672 ki->p_usrpri = l->l_usrpri; 2673 if (l->l_wmesg) 2674 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2675 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2676 2677 } 2678 2679 if (p->p_session->s_ttyvp) 2680 ki->p_eflag |= EPROC_CTTY; 2681 if (SESS_LEADER(p)) 2682 ki->p_eflag |= EPROC_SLEADER; 2683 2684 /* XXX Is this double check necessary? */ 2685 if (P_ZOMBIE(p)) { 2686 ki->p_uvalid = 0; 2687 } else { 2688 ki->p_uvalid = 1; 2689 2690 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2691 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2692 2693 calcru(p, &ut, &st, 0); 2694 ki->p_uutime_sec = ut.tv_sec; 2695 ki->p_uutime_usec = ut.tv_usec; 2696 ki->p_ustime_sec = st.tv_sec; 2697 ki->p_ustime_usec = st.tv_usec; 2698 2699 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2700 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2701 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2702 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2703 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2704 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2705 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2706 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2707 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2708 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2709 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2710 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2711 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 2712 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 2713 2714 timeradd(&p->p_stats->p_cru.ru_utime, 2715 &p->p_stats->p_cru.ru_stime, &ut); 2716 ki->p_uctime_sec = ut.tv_sec; 2717 ki->p_uctime_usec = ut.tv_usec; 2718 } 2719 #ifdef MULTIPROCESSOR 2720 if (l && l->l_cpu != NULL) 2721 ki->p_cpuid = l->l_cpu->ci_cpuid; 2722 else 2723 #endif 2724 ki->p_cpuid = KI_NOCPU; 2725 } 2726 2727 /* 2728 * Fill in a kinfo_lwp structure for the specified lwp. 2729 */ 2730 static void 2731 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2732 { 2733 2734 kl->l_forw = PTRTOUINT64(l->l_forw); 2735 kl->l_back = PTRTOUINT64(l->l_back); 2736 kl->l_laddr = PTRTOUINT64(l); 2737 kl->l_addr = PTRTOUINT64(l->l_addr); 2738 kl->l_stat = l->l_stat; 2739 kl->l_lid = l->l_lid; 2740 kl->l_flag = l->l_flag; 2741 2742 kl->l_swtime = l->l_swtime; 2743 kl->l_slptime = l->l_slptime; 2744 if (l->l_stat == LSONPROC) { 2745 KDASSERT(l->l_cpu != NULL); 2746 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2747 } else 2748 kl->l_schedflags = 0; 2749 kl->l_holdcnt = l->l_holdcnt; 2750 kl->l_priority = l->l_priority; 2751 kl->l_usrpri = l->l_usrpri; 2752 if (l->l_wmesg) 2753 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2754 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2755 #ifdef MULTIPROCESSOR 2756 if (l->l_cpu != NULL) 2757 kl->l_cpuid = l->l_cpu->ci_cpuid; 2758 else 2759 #endif 2760 kl->l_cpuid = KI_NOCPU; 2761 } 2762 2763 /* 2764 * Fill in an eproc structure for the specified process. 2765 */ 2766 void 2767 fill_eproc(struct proc *p, struct eproc *ep) 2768 { 2769 struct tty *tp; 2770 struct lwp *l; 2771 2772 ep->e_paddr = p; 2773 ep->e_sess = p->p_session; 2774 ep->e_pcred = *p->p_cred; 2775 ep->e_ucred = *p->p_ucred; 2776 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2777 ep->e_vm.vm_rssize = 0; 2778 ep->e_vm.vm_tsize = 0; 2779 ep->e_vm.vm_dsize = 0; 2780 ep->e_vm.vm_ssize = 0; 2781 /* ep->e_vm.vm_pmap = XXX; */ 2782 } else { 2783 struct vmspace *vm = p->p_vmspace; 2784 2785 ep->e_vm.vm_rssize = vm_resident_count(vm); 2786 ep->e_vm.vm_tsize = vm->vm_tsize; 2787 ep->e_vm.vm_dsize = vm->vm_dsize; 2788 ep->e_vm.vm_ssize = vm->vm_ssize; 2789 2790 /* Pick a "representative" LWP */ 2791 l = proc_representative_lwp(p); 2792 2793 if (l->l_wmesg) 2794 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2795 } 2796 if (p->p_pptr) 2797 ep->e_ppid = p->p_pptr->p_pid; 2798 else 2799 ep->e_ppid = 0; 2800 ep->e_pgid = p->p_pgrp->pg_id; 2801 ep->e_sid = ep->e_sess->s_sid; 2802 ep->e_jobc = p->p_pgrp->pg_jobc; 2803 if ((p->p_flag & P_CONTROLT) && 2804 (tp = ep->e_sess->s_ttyp)) { 2805 ep->e_tdev = tp->t_dev; 2806 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2807 ep->e_tsess = tp->t_session; 2808 } else 2809 ep->e_tdev = NODEV; 2810 2811 ep->e_xsize = ep->e_xrssize = 0; 2812 ep->e_xccount = ep->e_xswrss = 0; 2813 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2814 if (SESS_LEADER(p)) 2815 ep->e_flag |= EPROC_SLEADER; 2816 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2817 } 2818
Indexes created Wed Sep 24 05:09:52 GMT 2025