init_sysctl.c revision 1.49
1 /* $NetBSD: init_sysctl.c,v 1.49 2005/08/07 12:28:34 blymn 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 1.49 2005/08/07 12:28:34 blymn Exp $"); 41 42 #include "opt_sysv.h" 43 #include "opt_multiprocessor.h" 44 #include "opt_posix.h" 45 #include "opt_verified_exec.h" 46 #include "pty.h" 47 #include "rnd.h" 48 49 #include <sys/types.h> 50 #include <sys/param.h> 51 #include <sys/sysctl.h> 52 #include <sys/errno.h> 53 #include <sys/systm.h> 54 #include <sys/kernel.h> 55 #include <sys/unistd.h> 56 #include <sys/disklabel.h> 57 #include <sys/rnd.h> 58 #include <sys/vnode.h> 59 #include <sys/mount.h> 60 #include <sys/namei.h> 61 #include <sys/msgbuf.h> 62 #include <dev/cons.h> 63 #include <sys/socketvar.h> 64 #include <sys/file.h> 65 #include <sys/filedesc.h> 66 #include <sys/tty.h> 67 #include <sys/malloc.h> 68 #include <sys/resource.h> 69 #include <sys/resourcevar.h> 70 #include <sys/exec.h> 71 #include <sys/conf.h> 72 #include <sys/device.h> 73 #ifdef VERIFIED_EXEC 74 #define VERIEXEC_NEED_NODE 75 #include <sys/verified_exec.h> 76 #endif /* VERIFIED_EXEC */ 77 78 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 79 #include <sys/ipc.h> 80 #endif 81 #ifdef SYSVMSG 82 #include <sys/msg.h> 83 #endif 84 #ifdef SYSVSEM 85 #include <sys/sem.h> 86 #endif 87 #ifdef SYSVSHM 88 #include <sys/shm.h> 89 #endif 90 91 #include <machine/cpu.h> 92 93 /* 94 * try over estimating by 5 procs/lwps 95 */ 96 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 97 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 98 99 #ifndef MULTIPROCESSOR 100 #define sysctl_ncpus() (1) 101 #else /* MULTIPROCESSOR */ 102 #ifndef CPU_INFO_FOREACH 103 #define CPU_INFO_ITERATOR int 104 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 105 #endif 106 static int 107 sysctl_ncpus(void) 108 { 109 struct cpu_info *ci; 110 CPU_INFO_ITERATOR cii; 111 112 int ncpus = 0; 113 for (CPU_INFO_FOREACH(cii, ci)) 114 ncpus++; 115 return (ncpus); 116 } 117 #endif /* MULTIPROCESSOR */ 118 119 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 120 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 121 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 122 static int sysctl_kern_securelevel(SYSCTLFN_PROTO); 123 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 124 static int sysctl_setlen(SYSCTLFN_PROTO); 125 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 126 static int sysctl_kern_file(SYSCTLFN_PROTO); 127 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 128 static int sysctl_msgbuf(SYSCTLFN_PROTO); 129 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 130 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 131 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 132 static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 133 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 134 #if NPTY > 0 135 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 136 #endif /* NPTY > 0 */ 137 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 138 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 139 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 140 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 141 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 142 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 143 static int sysctl_kern_file2(SYSCTLFN_PROTO); 144 #ifdef VERIFIED_EXEC 145 static int sysctl_kern_veriexec(SYSCTLFN_PROTO); 146 #endif 147 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 148 static int sysctl_doeproc(SYSCTLFN_PROTO); 149 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 150 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 151 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 152 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 153 154 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 155 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 156 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 157 int); 158 159 /* 160 * ******************************************************************** 161 * section 1: setup routines 162 * ******************************************************************** 163 * these functions are stuffed into a link set for sysctl setup 164 * functions. they're never called or referenced from anywhere else. 165 * ******************************************************************** 166 */ 167 168 /* 169 * sets up the base nodes... 170 */ 171 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 172 { 173 174 sysctl_createv(clog, 0, NULL, NULL, 175 CTLFLAG_PERMANENT, 176 CTLTYPE_NODE, "kern", 177 SYSCTL_DESCR("High kernel"), 178 NULL, 0, NULL, 0, 179 CTL_KERN, CTL_EOL); 180 sysctl_createv(clog, 0, NULL, NULL, 181 CTLFLAG_PERMANENT, 182 CTLTYPE_NODE, "vm", 183 SYSCTL_DESCR("Virtual memory"), 184 NULL, 0, NULL, 0, 185 CTL_VM, CTL_EOL); 186 sysctl_createv(clog, 0, NULL, NULL, 187 CTLFLAG_PERMANENT, 188 CTLTYPE_NODE, "vfs", 189 SYSCTL_DESCR("Filesystem"), 190 NULL, 0, NULL, 0, 191 CTL_VFS, CTL_EOL); 192 sysctl_createv(clog, 0, NULL, NULL, 193 CTLFLAG_PERMANENT, 194 CTLTYPE_NODE, "net", 195 SYSCTL_DESCR("Networking"), 196 NULL, 0, NULL, 0, 197 CTL_NET, CTL_EOL); 198 sysctl_createv(clog, 0, NULL, NULL, 199 CTLFLAG_PERMANENT, 200 CTLTYPE_NODE, "debug", 201 SYSCTL_DESCR("Debugging"), 202 NULL, 0, NULL, 0, 203 CTL_DEBUG, CTL_EOL); 204 sysctl_createv(clog, 0, NULL, NULL, 205 CTLFLAG_PERMANENT, 206 CTLTYPE_NODE, "hw", 207 SYSCTL_DESCR("Generic CPU, I/O"), 208 NULL, 0, NULL, 0, 209 CTL_HW, CTL_EOL); 210 sysctl_createv(clog, 0, NULL, NULL, 211 CTLFLAG_PERMANENT, 212 CTLTYPE_NODE, "machdep", 213 SYSCTL_DESCR("Machine dependent"), 214 NULL, 0, NULL, 0, 215 CTL_MACHDEP, CTL_EOL); 216 /* 217 * this node is inserted so that the sysctl nodes in libc can 218 * operate. 219 */ 220 sysctl_createv(clog, 0, NULL, NULL, 221 CTLFLAG_PERMANENT, 222 CTLTYPE_NODE, "user", 223 SYSCTL_DESCR("User-level"), 224 NULL, 0, NULL, 0, 225 CTL_USER, CTL_EOL); 226 sysctl_createv(clog, 0, NULL, NULL, 227 CTLFLAG_PERMANENT, 228 CTLTYPE_NODE, "ddb", 229 SYSCTL_DESCR("In-kernel debugger"), 230 NULL, 0, NULL, 0, 231 CTL_DDB, CTL_EOL); 232 sysctl_createv(clog, 0, NULL, NULL, 233 CTLFLAG_PERMANENT, 234 CTLTYPE_NODE, "proc", 235 SYSCTL_DESCR("Per-process"), 236 NULL, 0, NULL, 0, 237 CTL_PROC, CTL_EOL); 238 sysctl_createv(clog, 0, NULL, NULL, 239 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 240 CTLTYPE_NODE, "vendor", 241 SYSCTL_DESCR("Vendor specific"), 242 NULL, 0, NULL, 0, 243 CTL_VENDOR, CTL_EOL); 244 sysctl_createv(clog, 0, NULL, NULL, 245 CTLFLAG_PERMANENT, 246 CTLTYPE_NODE, "emul", 247 SYSCTL_DESCR("Emulation settings"), 248 NULL, 0, NULL, 0, 249 CTL_EMUL, CTL_EOL); 250 } 251 252 /* 253 * this setup routine is a replacement for kern_sysctl() 254 */ 255 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 256 { 257 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 258 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 259 extern int dumponpanic; /* defined in kern/subr_prf.c */ 260 261 sysctl_createv(clog, 0, NULL, NULL, 262 CTLFLAG_PERMANENT, 263 CTLTYPE_NODE, "kern", NULL, 264 NULL, 0, NULL, 0, 265 CTL_KERN, CTL_EOL); 266 267 sysctl_createv(clog, 0, NULL, NULL, 268 CTLFLAG_PERMANENT, 269 CTLTYPE_STRING, "ostype", 270 SYSCTL_DESCR("Operating system type"), 271 NULL, 0, &ostype, 0, 272 CTL_KERN, KERN_OSTYPE, CTL_EOL); 273 sysctl_createv(clog, 0, NULL, NULL, 274 CTLFLAG_PERMANENT, 275 CTLTYPE_STRING, "osrelease", 276 SYSCTL_DESCR("Operating system release"), 277 NULL, 0, &osrelease, 0, 278 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 279 sysctl_createv(clog, 0, NULL, NULL, 280 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 281 CTLTYPE_INT, "osrevision", 282 SYSCTL_DESCR("Operating system revision"), 283 NULL, __NetBSD_Version__, NULL, 0, 284 CTL_KERN, KERN_OSREV, CTL_EOL); 285 sysctl_createv(clog, 0, NULL, NULL, 286 CTLFLAG_PERMANENT, 287 CTLTYPE_STRING, "version", 288 SYSCTL_DESCR("Kernel version"), 289 NULL, 0, &version, 0, 290 CTL_KERN, KERN_VERSION, CTL_EOL); 291 sysctl_createv(clog, 0, NULL, NULL, 292 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 293 CTLTYPE_INT, "maxvnodes", 294 SYSCTL_DESCR("Maximum number of vnodes"), 295 sysctl_kern_maxvnodes, 0, NULL, 0, 296 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 297 sysctl_createv(clog, 0, NULL, NULL, 298 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 299 CTLTYPE_INT, "maxproc", 300 SYSCTL_DESCR("Maximum number of simultaneous processes"), 301 sysctl_kern_maxproc, 0, NULL, 0, 302 CTL_KERN, KERN_MAXPROC, CTL_EOL); 303 sysctl_createv(clog, 0, NULL, NULL, 304 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 305 CTLTYPE_INT, "maxfiles", 306 SYSCTL_DESCR("Maximum number of open files"), 307 NULL, 0, &maxfiles, 0, 308 CTL_KERN, KERN_MAXFILES, CTL_EOL); 309 sysctl_createv(clog, 0, NULL, NULL, 310 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 311 CTLTYPE_INT, "argmax", 312 SYSCTL_DESCR("Maximum number of bytes of arguments to " 313 "execve(2)"), 314 NULL, ARG_MAX, NULL, 0, 315 CTL_KERN, KERN_ARGMAX, CTL_EOL); 316 sysctl_createv(clog, 0, NULL, NULL, 317 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 318 CTLTYPE_INT, "securelevel", 319 SYSCTL_DESCR("System security level"), 320 sysctl_kern_securelevel, 0, &securelevel, 0, 321 CTL_KERN, KERN_SECURELVL, CTL_EOL); 322 sysctl_createv(clog, 0, NULL, NULL, 323 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 324 CTLTYPE_STRING, "hostname", 325 SYSCTL_DESCR("System hostname"), 326 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 327 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 328 sysctl_createv(clog, 0, NULL, NULL, 329 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 330 CTLTYPE_INT, "hostid", 331 SYSCTL_DESCR("System host ID number"), 332 sysctl_kern_hostid, 0, NULL, 0, 333 CTL_KERN, KERN_HOSTID, CTL_EOL); 334 sysctl_createv(clog, 0, NULL, NULL, 335 CTLFLAG_PERMANENT, 336 CTLTYPE_STRUCT, "clockrate", 337 SYSCTL_DESCR("Kernel clock rates"), 338 sysctl_kern_clockrate, 0, NULL, 339 sizeof(struct clockinfo), 340 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 341 sysctl_createv(clog, 0, NULL, NULL, 342 CTLFLAG_PERMANENT, 343 CTLTYPE_STRUCT, "vnode", 344 SYSCTL_DESCR("System vnode table"), 345 sysctl_kern_vnode, 0, NULL, 0, 346 CTL_KERN, KERN_VNODE, CTL_EOL); 347 sysctl_createv(clog, 0, NULL, NULL, 348 CTLFLAG_PERMANENT, 349 CTLTYPE_STRUCT, "file", 350 SYSCTL_DESCR("System open file table"), 351 sysctl_kern_file, 0, NULL, 0, 352 CTL_KERN, KERN_FILE, CTL_EOL); 353 #ifndef GPROF 354 sysctl_createv(clog, 0, NULL, NULL, 355 CTLFLAG_PERMANENT, 356 CTLTYPE_NODE, "profiling", 357 SYSCTL_DESCR("Profiling information (not available)"), 358 sysctl_notavail, 0, NULL, 0, 359 CTL_KERN, KERN_PROF, CTL_EOL); 360 #endif 361 sysctl_createv(clog, 0, NULL, NULL, 362 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 363 CTLTYPE_INT, "posix1version", 364 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 365 "with which the operating system attempts " 366 "to comply"), 367 NULL, _POSIX_VERSION, NULL, 0, 368 CTL_KERN, KERN_POSIX1, CTL_EOL); 369 sysctl_createv(clog, 0, NULL, NULL, 370 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 371 CTLTYPE_INT, "ngroups", 372 SYSCTL_DESCR("Maximum number of supplemental groups"), 373 NULL, NGROUPS_MAX, NULL, 0, 374 CTL_KERN, KERN_NGROUPS, CTL_EOL); 375 sysctl_createv(clog, 0, NULL, NULL, 376 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 377 CTLTYPE_INT, "job_control", 378 SYSCTL_DESCR("Whether job control is available"), 379 NULL, 1, NULL, 0, 380 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 381 sysctl_createv(clog, 0, NULL, NULL, 382 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 383 CTLTYPE_INT, "saved_ids", 384 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 385 "available"), NULL, 386 #ifdef _POSIX_SAVED_IDS 387 1, 388 #else /* _POSIX_SAVED_IDS */ 389 0, 390 #endif /* _POSIX_SAVED_IDS */ 391 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 392 sysctl_createv(clog, 0, NULL, NULL, 393 CTLFLAG_PERMANENT, 394 CTLTYPE_STRUCT, "boottime", 395 SYSCTL_DESCR("System boot time"), 396 NULL, 0, &boottime, sizeof(boottime), 397 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 398 sysctl_createv(clog, 0, NULL, NULL, 399 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 400 CTLTYPE_STRING, "domainname", 401 SYSCTL_DESCR("YP domain name"), 402 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 403 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 404 sysctl_createv(clog, 0, NULL, NULL, 405 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 406 CTLTYPE_INT, "maxpartitions", 407 SYSCTL_DESCR("Maximum number of partitions allowed per " 408 "disk"), 409 NULL, MAXPARTITIONS, NULL, 0, 410 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 411 sysctl_createv(clog, 0, NULL, NULL, 412 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 413 CTLTYPE_INT, "rawpartition", 414 SYSCTL_DESCR("Raw partition of a disk"), 415 NULL, RAW_PART, NULL, 0, 416 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 417 sysctl_createv(clog, 0, NULL, NULL, 418 CTLFLAG_PERMANENT, 419 CTLTYPE_STRUCT, "timex", NULL, 420 sysctl_notavail, 0, NULL, 0, 421 CTL_KERN, KERN_TIMEX, CTL_EOL); 422 sysctl_createv(clog, 0, NULL, NULL, 423 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 424 CTLTYPE_INT, "autonicetime", 425 SYSCTL_DESCR("CPU clock seconds before non-root " 426 "process priority is lowered"), 427 sysctl_kern_autonice, 0, &autonicetime, 0, 428 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 429 sysctl_createv(clog, 0, NULL, NULL, 430 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 431 CTLTYPE_INT, "autoniceval", 432 SYSCTL_DESCR("Automatic reniced non-root process " 433 "priority"), 434 sysctl_kern_autonice, 0, &autoniceval, 0, 435 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 436 sysctl_createv(clog, 0, NULL, NULL, 437 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 438 CTLTYPE_INT, "rtc_offset", 439 SYSCTL_DESCR("Offset of real time clock from UTC in " 440 "minutes"), 441 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 442 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 443 sysctl_createv(clog, 0, NULL, NULL, 444 CTLFLAG_PERMANENT, 445 CTLTYPE_STRING, "root_device", 446 SYSCTL_DESCR("Name of the root device"), 447 sysctl_root_device, 0, NULL, 0, 448 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 449 sysctl_createv(clog, 0, NULL, NULL, 450 CTLFLAG_PERMANENT, 451 CTLTYPE_INT, "msgbufsize", 452 SYSCTL_DESCR("Size of the kernel message buffer"), 453 sysctl_msgbuf, 0, NULL, 0, 454 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 455 sysctl_createv(clog, 0, NULL, NULL, 456 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 457 CTLTYPE_INT, "fsync", 458 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 459 "Synchronization Option is available on " 460 "this system"), 461 NULL, 1, NULL, 0, 462 CTL_KERN, KERN_FSYNC, CTL_EOL); 463 sysctl_createv(clog, 0, NULL, NULL, 464 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 465 CTLTYPE_INT, "sysvmsg", 466 SYSCTL_DESCR("System V style message support available"), 467 NULL, 468 #ifdef SYSVMSG 469 1, 470 #else /* SYSVMSG */ 471 0, 472 #endif /* SYSVMSG */ 473 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 474 sysctl_createv(clog, 0, NULL, NULL, 475 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 476 CTLTYPE_INT, "sysvsem", 477 SYSCTL_DESCR("System V style semaphore support " 478 "available"), NULL, 479 #ifdef SYSVSEM 480 1, 481 #else /* SYSVSEM */ 482 0, 483 #endif /* SYSVSEM */ 484 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 485 sysctl_createv(clog, 0, NULL, NULL, 486 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 487 CTLTYPE_INT, "sysvshm", 488 SYSCTL_DESCR("System V style shared memory support " 489 "available"), NULL, 490 #ifdef SYSVSHM 491 1, 492 #else /* SYSVSHM */ 493 0, 494 #endif /* SYSVSHM */ 495 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 496 sysctl_createv(clog, 0, NULL, NULL, 497 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 498 CTLTYPE_INT, "synchronized_io", 499 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 500 "I/O Option is available on this system"), 501 NULL, 1, NULL, 0, 502 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 503 sysctl_createv(clog, 0, NULL, NULL, 504 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 505 CTLTYPE_INT, "iov_max", 506 SYSCTL_DESCR("Maximum number of iovec structures per " 507 "process"), 508 NULL, IOV_MAX, NULL, 0, 509 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 510 sysctl_createv(clog, 0, NULL, NULL, 511 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 512 CTLTYPE_INT, "mapped_files", 513 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 514 "Files Option is available on this system"), 515 NULL, 1, NULL, 0, 516 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 517 sysctl_createv(clog, 0, NULL, NULL, 518 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 519 CTLTYPE_INT, "memlock", 520 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 521 "Locking Option is available on this " 522 "system"), 523 NULL, 1, NULL, 0, 524 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 525 sysctl_createv(clog, 0, NULL, NULL, 526 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 527 CTLTYPE_INT, "memlock_range", 528 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 529 "Locking Option is available on this " 530 "system"), 531 NULL, 1, NULL, 0, 532 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 533 sysctl_createv(clog, 0, NULL, NULL, 534 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 535 CTLTYPE_INT, "memory_protection", 536 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 537 "Protection Option is available on this " 538 "system"), 539 NULL, 1, NULL, 0, 540 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 541 sysctl_createv(clog, 0, NULL, NULL, 542 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 543 CTLTYPE_INT, "login_name_max", 544 SYSCTL_DESCR("Maximum login name length"), 545 NULL, LOGIN_NAME_MAX, NULL, 0, 546 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 547 sysctl_createv(clog, 0, NULL, NULL, 548 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 549 CTLTYPE_STRING, "defcorename", 550 SYSCTL_DESCR("Default core file name"), 551 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 552 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 553 sysctl_createv(clog, 0, NULL, NULL, 554 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 555 CTLTYPE_INT, "logsigexit", 556 SYSCTL_DESCR("Log process exit when caused by signals"), 557 NULL, 0, &kern_logsigexit, 0, 558 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 559 sysctl_createv(clog, 0, NULL, NULL, 560 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 561 CTLTYPE_INT, "fscale", 562 SYSCTL_DESCR("Kernel fixed-point scale factor"), 563 NULL, FSCALE, NULL, 0, 564 CTL_KERN, KERN_FSCALE, CTL_EOL); 565 sysctl_createv(clog, 0, NULL, NULL, 566 CTLFLAG_PERMANENT, 567 CTLTYPE_INT, "ccpu", 568 SYSCTL_DESCR("Scheduler exponential decay value"), 569 NULL, 0, &ccpu, 0, 570 CTL_KERN, KERN_CCPU, CTL_EOL); 571 sysctl_createv(clog, 0, NULL, NULL, 572 CTLFLAG_PERMANENT, 573 CTLTYPE_STRUCT, "cp_time", 574 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 575 sysctl_kern_cptime, 0, NULL, 0, 576 CTL_KERN, KERN_CP_TIME, CTL_EOL); 577 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 578 sysctl_createv(clog, 0, NULL, NULL, 579 CTLFLAG_PERMANENT, 580 CTLTYPE_STRUCT, "sysvipc_info", 581 SYSCTL_DESCR("System V style IPC information"), 582 sysctl_kern_sysvipc, 0, NULL, 0, 583 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 584 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 585 sysctl_createv(clog, 0, NULL, NULL, 586 CTLFLAG_PERMANENT, 587 CTLTYPE_INT, "msgbuf", 588 SYSCTL_DESCR("Kernel message buffer"), 589 sysctl_msgbuf, 0, NULL, 0, 590 CTL_KERN, KERN_MSGBUF, CTL_EOL); 591 sysctl_createv(clog, 0, NULL, NULL, 592 CTLFLAG_PERMANENT, 593 CTLTYPE_STRUCT, "consdev", 594 SYSCTL_DESCR("Console device"), 595 sysctl_consdev, 0, NULL, sizeof(dev_t), 596 CTL_KERN, KERN_CONSDEV, CTL_EOL); 597 #if NPTY > 0 598 sysctl_createv(clog, 0, NULL, NULL, 599 CTLFLAG_PERMANENT, 600 CTLTYPE_INT, "maxptys", 601 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 602 sysctl_kern_maxptys, 0, NULL, 0, 603 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 604 #endif /* NPTY > 0 */ 605 sysctl_createv(clog, 0, NULL, NULL, 606 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 607 CTLTYPE_INT, "maxphys", 608 SYSCTL_DESCR("Maximum raw I/O transfer size"), 609 NULL, MAXPHYS, NULL, 0, 610 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 611 sysctl_createv(clog, 0, NULL, NULL, 612 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 613 CTLTYPE_INT, "sbmax", 614 SYSCTL_DESCR("Maximum socket buffer size"), 615 sysctl_kern_sbmax, 0, NULL, 0, 616 CTL_KERN, KERN_SBMAX, CTL_EOL); 617 sysctl_createv(clog, 0, NULL, NULL, 618 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 619 CTLTYPE_INT, "monotonic_clock", 620 SYSCTL_DESCR("Implementation version of the POSIX " 621 "1003.1b Monotonic Clock Option"), 622 /* XXX _POSIX_VERSION */ 623 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 624 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 625 sysctl_createv(clog, 0, NULL, NULL, 626 CTLFLAG_PERMANENT, 627 CTLTYPE_INT, "urandom", 628 SYSCTL_DESCR("Random integer value"), 629 sysctl_kern_urnd, 0, NULL, 0, 630 CTL_KERN, KERN_URND, CTL_EOL); 631 sysctl_createv(clog, 0, NULL, NULL, 632 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 633 CTLTYPE_INT, "labelsector", 634 SYSCTL_DESCR("Sector number containing the disklabel"), 635 NULL, LABELSECTOR, NULL, 0, 636 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 637 sysctl_createv(clog, 0, NULL, NULL, 638 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 639 CTLTYPE_INT, "labeloffset", 640 SYSCTL_DESCR("Offset of the disklabel within the " 641 "sector"), 642 NULL, LABELOFFSET, NULL, 0, 643 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 644 sysctl_createv(clog, 0, NULL, NULL, 645 CTLFLAG_PERMANENT, 646 CTLTYPE_NODE, "lwp", 647 SYSCTL_DESCR("System-wide LWP information"), 648 sysctl_kern_lwp, 0, NULL, 0, 649 CTL_KERN, KERN_LWP, CTL_EOL); 650 sysctl_createv(clog, 0, NULL, NULL, 651 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 652 CTLTYPE_INT, "forkfsleep", 653 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 654 "to process limits"), 655 sysctl_kern_forkfsleep, 0, NULL, 0, 656 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 657 sysctl_createv(clog, 0, NULL, NULL, 658 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 659 CTLTYPE_INT, "posix_threads", 660 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 661 "Threads option to which the system " 662 "attempts to conform"), 663 /* XXX _POSIX_VERSION */ 664 NULL, _POSIX_THREADS, NULL, 0, 665 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 666 sysctl_createv(clog, 0, NULL, NULL, 667 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 668 CTLTYPE_INT, "posix_semaphores", 669 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 670 "Semaphores option to which the system " 671 "attempts to conform"), NULL, 672 #ifdef P1003_1B_SEMAPHORE 673 200112, 674 #else /* P1003_1B_SEMAPHORE */ 675 0, 676 #endif /* P1003_1B_SEMAPHORE */ 677 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 678 sysctl_createv(clog, 0, NULL, NULL, 679 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 680 CTLTYPE_INT, "posix_barriers", 681 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 682 "Barriers option to which the system " 683 "attempts to conform"), 684 /* XXX _POSIX_VERSION */ 685 NULL, _POSIX_BARRIERS, NULL, 0, 686 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 687 sysctl_createv(clog, 0, NULL, NULL, 688 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 689 CTLTYPE_INT, "posix_timers", 690 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 691 "Timers option to which the system " 692 "attempts to conform"), 693 /* XXX _POSIX_VERSION */ 694 NULL, _POSIX_TIMERS, NULL, 0, 695 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 696 sysctl_createv(clog, 0, NULL, NULL, 697 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 698 CTLTYPE_INT, "posix_spin_locks", 699 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 700 "Locks option to which the system attempts " 701 "to conform"), 702 /* XXX _POSIX_VERSION */ 703 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 704 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 705 sysctl_createv(clog, 0, NULL, NULL, 706 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 707 CTLTYPE_INT, "posix_reader_writer_locks", 708 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 709 "Read-Write Locks option to which the " 710 "system attempts to conform"), 711 /* XXX _POSIX_VERSION */ 712 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 713 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 714 sysctl_createv(clog, 0, NULL, NULL, 715 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 716 CTLTYPE_INT, "dump_on_panic", 717 SYSCTL_DESCR("Perform a crash dump on system panic"), 718 NULL, 0, &dumponpanic, 0, 719 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 720 sysctl_createv(clog, 0, NULL, NULL, 721 CTLFLAG_PERMANENT, 722 CTLTYPE_INT, "root_partition", 723 SYSCTL_DESCR("Root partition on the root device"), 724 sysctl_kern_root_partition, 0, NULL, 0, 725 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 726 sysctl_createv(clog, 0, NULL, NULL, 727 CTLFLAG_PERMANENT, 728 CTLTYPE_STRUCT, "drivers", 729 SYSCTL_DESCR("List of all drivers with block and " 730 "character device numbers"), 731 sysctl_kern_drivers, 0, NULL, 0, 732 CTL_KERN, KERN_DRIVERS, CTL_EOL); 733 sysctl_createv(clog, 0, NULL, NULL, 734 CTLFLAG_PERMANENT, 735 CTLTYPE_STRUCT, "file2", 736 SYSCTL_DESCR("System open file table"), 737 sysctl_kern_file2, 0, NULL, 0, 738 CTL_KERN, KERN_FILE2, CTL_EOL); 739 #ifdef VERIFIED_EXEC 740 sysctl_createv(clog, 0, NULL, NULL, 741 CTLFLAG_PERMANENT, 742 CTLTYPE_NODE, "veriexec", 743 SYSCTL_DESCR("Verified Exec"), 744 NULL, 0, NULL, 0, 745 CTL_KERN, KERN_VERIEXEC, CTL_EOL); 746 sysctl_createv(clog, 0, NULL, NULL, 747 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 748 CTLTYPE_INT, "verbose", 749 SYSCTL_DESCR("Verified Exec verbose level"), 750 NULL, 0, &veriexec_verbose, 0, 751 CTL_KERN, KERN_VERIEXEC, VERIEXEC_VERBOSE, 752 CTL_EOL); 753 sysctl_createv(clog, 0, NULL, NULL, 754 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 755 CTLTYPE_INT, "strict", 756 SYSCTL_DESCR("Verified Exec strict level"), 757 sysctl_kern_veriexec, 0, NULL, 0, 758 CTL_KERN, KERN_VERIEXEC, VERIEXEC_STRICT, CTL_EOL); 759 sysctl_createv(clog, 0, NULL, NULL, 760 CTLFLAG_PERMANENT, 761 CTLTYPE_STRING, "algorithms", 762 SYSCTL_DESCR("Verified Exec supported hashing " 763 "algorithms"), 764 sysctl_kern_veriexec, 0, NULL, 0, 765 CTL_KERN, KERN_VERIEXEC, VERIEXEC_ALGORITHMS, CTL_EOL); 766 sysctl_createv(clog, 0, NULL, &veriexec_count_node, 767 CTLFLAG_PERMANENT, 768 CTLTYPE_NODE, "count", 769 SYSCTL_DESCR("Number of fingerprints on device(s)"), 770 NULL, 0, NULL, 0, 771 CTL_KERN, KERN_VERIEXEC, VERIEXEC_COUNT, CTL_EOL); 772 #endif /* VERIFIED_EXEC */ 773 sysctl_createv(clog, 0, NULL, NULL, 774 CTLFLAG_PERMANENT, 775 CTLTYPE_STRUCT, "cp_id", 776 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 777 sysctl_kern_cpid, 0, NULL, 0, 778 CTL_KERN, KERN_CP_ID, CTL_EOL); 779 } 780 781 SYSCTL_SETUP(sysctl_kern_proc_setup, 782 "sysctl kern.proc/proc2/proc_args subtree setup") 783 { 784 785 sysctl_createv(clog, 0, NULL, NULL, 786 CTLFLAG_PERMANENT, 787 CTLTYPE_NODE, "kern", NULL, 788 NULL, 0, NULL, 0, 789 CTL_KERN, CTL_EOL); 790 791 sysctl_createv(clog, 0, NULL, NULL, 792 CTLFLAG_PERMANENT, 793 CTLTYPE_NODE, "proc", 794 SYSCTL_DESCR("System-wide process information"), 795 sysctl_doeproc, 0, NULL, 0, 796 CTL_KERN, KERN_PROC, CTL_EOL); 797 sysctl_createv(clog, 0, NULL, NULL, 798 CTLFLAG_PERMANENT, 799 CTLTYPE_NODE, "proc2", 800 SYSCTL_DESCR("Machine-independent process information"), 801 sysctl_doeproc, 0, NULL, 0, 802 CTL_KERN, KERN_PROC2, CTL_EOL); 803 sysctl_createv(clog, 0, NULL, NULL, 804 CTLFLAG_PERMANENT, 805 CTLTYPE_NODE, "proc_args", 806 SYSCTL_DESCR("Process argument information"), 807 sysctl_kern_proc_args, 0, NULL, 0, 808 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 809 810 /* 811 "nodes" under these: 812 813 KERN_PROC_ALL 814 KERN_PROC_PID pid 815 KERN_PROC_PGRP pgrp 816 KERN_PROC_SESSION sess 817 KERN_PROC_TTY tty 818 KERN_PROC_UID uid 819 KERN_PROC_RUID uid 820 KERN_PROC_GID gid 821 KERN_PROC_RGID gid 822 823 all in all, probably not worth the effort... 824 */ 825 } 826 827 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 828 { 829 u_int u; 830 u_quad_t q; 831 832 sysctl_createv(clog, 0, NULL, NULL, 833 CTLFLAG_PERMANENT, 834 CTLTYPE_NODE, "hw", NULL, 835 NULL, 0, NULL, 0, 836 CTL_HW, CTL_EOL); 837 838 sysctl_createv(clog, 0, NULL, NULL, 839 CTLFLAG_PERMANENT, 840 CTLTYPE_STRING, "machine", 841 SYSCTL_DESCR("Machine class"), 842 NULL, 0, machine, 0, 843 CTL_HW, HW_MACHINE, CTL_EOL); 844 sysctl_createv(clog, 0, NULL, NULL, 845 CTLFLAG_PERMANENT, 846 CTLTYPE_STRING, "model", 847 SYSCTL_DESCR("Machine model"), 848 NULL, 0, cpu_model, 0, 849 CTL_HW, HW_MODEL, CTL_EOL); 850 sysctl_createv(clog, 0, NULL, NULL, 851 CTLFLAG_PERMANENT, 852 CTLTYPE_INT, "ncpu", 853 SYSCTL_DESCR("Number of active CPUs"), 854 sysctl_hw_ncpu, 0, NULL, 0, 855 CTL_HW, HW_NCPU, CTL_EOL); 856 sysctl_createv(clog, 0, NULL, NULL, 857 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 858 CTLTYPE_INT, "byteorder", 859 SYSCTL_DESCR("System byte order"), 860 NULL, BYTE_ORDER, NULL, 0, 861 CTL_HW, HW_BYTEORDER, CTL_EOL); 862 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 863 UINT_MAX : physmem * PAGE_SIZE; 864 sysctl_createv(clog, 0, NULL, NULL, 865 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 866 CTLTYPE_INT, "physmem", 867 SYSCTL_DESCR("Bytes of physical memory"), 868 NULL, u, NULL, 0, 869 CTL_HW, HW_PHYSMEM, CTL_EOL); 870 sysctl_createv(clog, 0, NULL, NULL, 871 CTLFLAG_PERMANENT, 872 CTLTYPE_INT, "usermem", 873 SYSCTL_DESCR("Bytes of non-kernel memory"), 874 sysctl_hw_usermem, 0, NULL, 0, 875 CTL_HW, HW_USERMEM, CTL_EOL); 876 sysctl_createv(clog, 0, NULL, NULL, 877 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 878 CTLTYPE_INT, "pagesize", 879 SYSCTL_DESCR("Software page size"), 880 NULL, PAGE_SIZE, NULL, 0, 881 CTL_HW, HW_PAGESIZE, CTL_EOL); 882 sysctl_createv(clog, 0, NULL, NULL, 883 CTLFLAG_PERMANENT, 884 CTLTYPE_STRING, "disknames", 885 SYSCTL_DESCR("List of disk devices present"), 886 sysctl_hw_disknames, 0, NULL, 0, 887 CTL_HW, HW_DISKNAMES, CTL_EOL); 888 sysctl_createv(clog, 0, NULL, NULL, 889 CTLFLAG_PERMANENT, 890 CTLTYPE_STRUCT, "diskstats", 891 SYSCTL_DESCR("Statistics on disk operation"), 892 sysctl_hw_diskstats, 0, NULL, 0, 893 CTL_HW, HW_DISKSTATS, CTL_EOL); 894 sysctl_createv(clog, 0, NULL, NULL, 895 CTLFLAG_PERMANENT, 896 CTLTYPE_STRING, "tapenames", 897 SYSCTL_DESCR("List of tape devices present"), 898 sysctl_hw_tapenames, 0, NULL, 0, 899 CTL_HW, HW_TAPENAMES, CTL_EOL); 900 sysctl_createv(clog, 0, NULL, NULL, 901 CTLFLAG_PERMANENT, 902 CTLTYPE_STRUCT, "tapestats", 903 SYSCTL_DESCR("Statistics on tape drive operation"), 904 sysctl_hw_tapestats, 0, NULL, 0, 905 CTL_HW, HW_TAPESTATS, CTL_EOL); 906 sysctl_createv(clog, 0, NULL, NULL, 907 CTLFLAG_PERMANENT, 908 CTLTYPE_STRING, "machine_arch", 909 SYSCTL_DESCR("Machine CPU class"), 910 NULL, 0, machine_arch, 0, 911 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 912 sysctl_createv(clog, 0, NULL, NULL, 913 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 914 CTLTYPE_INT, "alignbytes", 915 SYSCTL_DESCR("Alignment constraint for all possible " 916 "data types"), 917 NULL, ALIGNBYTES, NULL, 0, 918 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 919 sysctl_createv(clog, 0, NULL, NULL, 920 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 921 CTLTYPE_STRING, "cnmagic", 922 SYSCTL_DESCR("Console magic key sequence"), 923 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 924 CTL_HW, HW_CNMAGIC, CTL_EOL); 925 q = (u_quad_t)physmem * PAGE_SIZE; 926 sysctl_createv(clog, 0, NULL, NULL, 927 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 928 CTLTYPE_QUAD, "physmem64", 929 SYSCTL_DESCR("Bytes of physical memory"), 930 NULL, q, NULL, 0, 931 CTL_HW, HW_PHYSMEM64, CTL_EOL); 932 sysctl_createv(clog, 0, NULL, NULL, 933 CTLFLAG_PERMANENT, 934 CTLTYPE_QUAD, "usermem64", 935 SYSCTL_DESCR("Bytes of non-kernel memory"), 936 sysctl_hw_usermem, 0, NULL, 0, 937 CTL_HW, HW_USERMEM64, CTL_EOL); 938 } 939 940 #ifdef DEBUG 941 /* 942 * Debugging related system variables. 943 */ 944 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 945 struct ctldebug debug5, debug6, debug7, debug8, debug9; 946 struct ctldebug debug10, debug11, debug12, debug13, debug14; 947 struct ctldebug debug15, debug16, debug17, debug18, debug19; 948 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 949 &debug0, &debug1, &debug2, &debug3, &debug4, 950 &debug5, &debug6, &debug7, &debug8, &debug9, 951 &debug10, &debug11, &debug12, &debug13, &debug14, 952 &debug15, &debug16, &debug17, &debug18, &debug19, 953 }; 954 955 /* 956 * this setup routine is a replacement for debug_sysctl() 957 * 958 * note that it creates several nodes per defined debug variable 959 */ 960 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 961 { 962 struct ctldebug *cdp; 963 char nodename[20]; 964 int i; 965 966 /* 967 * two ways here: 968 * 969 * the "old" way (debug.name -> value) which was emulated by 970 * the sysctl(8) binary 971 * 972 * the new way, which the sysctl(8) binary was actually using 973 974 node debug 975 node debug.0 976 string debug.0.name 977 int debug.0.value 978 int debug.name 979 980 */ 981 982 sysctl_createv(clog, 0, NULL, NULL, 983 CTLFLAG_PERMANENT, 984 CTLTYPE_NODE, "debug", NULL, 985 NULL, 0, NULL, 0, 986 CTL_DEBUG, CTL_EOL); 987 988 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 989 cdp = debugvars[i]; 990 if (cdp->debugname == NULL || cdp->debugvar == NULL) 991 continue; 992 993 snprintf(nodename, sizeof(nodename), "debug%d", i); 994 sysctl_createv(clog, 0, NULL, NULL, 995 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 996 CTLTYPE_NODE, nodename, NULL, 997 NULL, 0, NULL, 0, 998 CTL_DEBUG, i, CTL_EOL); 999 sysctl_createv(clog, 0, NULL, NULL, 1000 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1001 CTLTYPE_STRING, "name", NULL, 1002 /*XXXUNCONST*/ 1003 NULL, 0, __UNCONST(cdp->debugname), 0, 1004 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1005 sysctl_createv(clog, 0, NULL, NULL, 1006 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1007 CTLTYPE_INT, "value", NULL, 1008 NULL, 0, cdp->debugvar, 0, 1009 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1010 sysctl_createv(clog, 0, NULL, NULL, 1011 CTLFLAG_PERMANENT, 1012 CTLTYPE_INT, cdp->debugname, NULL, 1013 NULL, 0, cdp->debugvar, 0, 1014 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1015 } 1016 } 1017 #endif /* DEBUG */ 1018 1019 /* 1020 * ******************************************************************** 1021 * section 2: private node-specific helper routines. 1022 * ******************************************************************** 1023 */ 1024 1025 /* 1026 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1027 * new value is lower than desiredvnodes and then calls reinit 1028 * routines that needs to adjust to the new value. 1029 */ 1030 static int 1031 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1032 { 1033 int error, new_vnodes, old_vnodes; 1034 struct sysctlnode node; 1035 1036 new_vnodes = desiredvnodes; 1037 node = *rnode; 1038 node.sysctl_data = &new_vnodes; 1039 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1040 if (error || newp == NULL) 1041 return (error); 1042 1043 old_vnodes = desiredvnodes; 1044 desiredvnodes = new_vnodes; 1045 if (new_vnodes < old_vnodes) { 1046 error = vfs_drainvnodes(new_vnodes, l->l_proc); 1047 if (error) { 1048 desiredvnodes = old_vnodes; 1049 return (error); 1050 } 1051 } 1052 vfs_reinit(); 1053 nchreinit(); 1054 1055 return (0); 1056 } 1057 1058 /* 1059 * sysctl helper routine for rtc_offset - set time after changes 1060 */ 1061 static int 1062 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1063 { 1064 struct timeval tv, delta; 1065 int s, error, new_rtc_offset; 1066 struct sysctlnode node; 1067 1068 new_rtc_offset = rtc_offset; 1069 node = *rnode; 1070 node.sysctl_data = &new_rtc_offset; 1071 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1072 if (error || newp == NULL) 1073 return (error); 1074 1075 if (securelevel > 0) 1076 return (EPERM); 1077 if (rtc_offset == new_rtc_offset) 1078 return (0); 1079 1080 /* if we change the offset, adjust the time */ 1081 s = splclock(); 1082 tv = time; 1083 splx(s); 1084 delta.tv_sec = 60*(new_rtc_offset - rtc_offset); 1085 delta.tv_usec = 0; 1086 timeradd(&tv, &delta, &tv); 1087 rtc_offset = new_rtc_offset; 1088 settime(&tv); 1089 1090 return (0); 1091 } 1092 1093 /* 1094 * sysctl helper routine for kern.maxvnodes. ensures that the new 1095 * values are not too low or too high. 1096 */ 1097 static int 1098 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1099 { 1100 int error, nmaxproc; 1101 struct sysctlnode node; 1102 1103 nmaxproc = maxproc; 1104 node = *rnode; 1105 node.sysctl_data = &nmaxproc; 1106 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1107 if (error || newp == NULL) 1108 return (error); 1109 1110 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1111 return (EINVAL); 1112 #ifdef __HAVE_CPU_MAXPROC 1113 if (nmaxproc > cpu_maxproc()) 1114 return (EINVAL); 1115 #endif 1116 maxproc = nmaxproc; 1117 1118 return (0); 1119 } 1120 1121 /* 1122 * sysctl helper routine for kern.securelevel. ensures that the value 1123 * only rises unless the caller has pid 1 (assumed to be init). 1124 */ 1125 static int 1126 sysctl_kern_securelevel(SYSCTLFN_ARGS) 1127 { 1128 int newsecurelevel, error; 1129 struct sysctlnode node; 1130 1131 newsecurelevel = securelevel; 1132 node = *rnode; 1133 node.sysctl_data = &newsecurelevel; 1134 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1135 if (error || newp == NULL) 1136 return (error); 1137 1138 if (newsecurelevel < securelevel && l && l->l_proc->p_pid != 1) 1139 return (EPERM); 1140 securelevel = newsecurelevel; 1141 1142 return (error); 1143 } 1144 1145 /* 1146 * sysctl helper function for kern.hostid. the hostid is a long, but 1147 * we export it as an int, so we need to give it a little help. 1148 */ 1149 static int 1150 sysctl_kern_hostid(SYSCTLFN_ARGS) 1151 { 1152 int error, inthostid; 1153 struct sysctlnode node; 1154 1155 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1156 node = *rnode; 1157 node.sysctl_data = &inthostid; 1158 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1159 if (error || newp == NULL) 1160 return (error); 1161 1162 hostid = (unsigned)inthostid; 1163 1164 return (0); 1165 } 1166 1167 /* 1168 * sysctl helper function for kern.hostname and kern.domainnname. 1169 * resets the relevant recorded length when the underlying name is 1170 * changed. 1171 */ 1172 static int 1173 sysctl_setlen(SYSCTLFN_ARGS) 1174 { 1175 int error; 1176 1177 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1178 if (error || newp == NULL) 1179 return (error); 1180 1181 switch (rnode->sysctl_num) { 1182 case KERN_HOSTNAME: 1183 hostnamelen = strlen((const char*)rnode->sysctl_data); 1184 break; 1185 case KERN_DOMAINNAME: 1186 domainnamelen = strlen((const char*)rnode->sysctl_data); 1187 break; 1188 } 1189 1190 return (0); 1191 } 1192 1193 /* 1194 * sysctl helper routine for kern.clockrate. assembles a struct on 1195 * the fly to be returned to the caller. 1196 */ 1197 static int 1198 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1199 { 1200 struct clockinfo clkinfo; 1201 struct sysctlnode node; 1202 1203 clkinfo.tick = tick; 1204 clkinfo.tickadj = tickadj; 1205 clkinfo.hz = hz; 1206 clkinfo.profhz = profhz; 1207 clkinfo.stathz = stathz ? stathz : hz; 1208 1209 node = *rnode; 1210 node.sysctl_data = &clkinfo; 1211 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1212 } 1213 1214 1215 /* 1216 * sysctl helper routine for kern.file pseudo-subtree. 1217 */ 1218 static int 1219 sysctl_kern_file(SYSCTLFN_ARGS) 1220 { 1221 int error; 1222 size_t buflen; 1223 struct file *fp; 1224 char *start, *where; 1225 1226 start = where = oldp; 1227 buflen = *oldlenp; 1228 if (where == NULL) { 1229 /* 1230 * overestimate by 10 files 1231 */ 1232 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1233 return (0); 1234 } 1235 1236 /* 1237 * first copyout filehead 1238 */ 1239 if (buflen < sizeof(filehead)) { 1240 *oldlenp = 0; 1241 return (0); 1242 } 1243 error = copyout(&filehead, where, sizeof(filehead)); 1244 if (error) 1245 return (error); 1246 buflen -= sizeof(filehead); 1247 where += sizeof(filehead); 1248 1249 /* 1250 * followed by an array of file structures 1251 */ 1252 LIST_FOREACH(fp, &filehead, f_list) { 1253 if (buflen < sizeof(struct file)) { 1254 *oldlenp = where - start; 1255 return (ENOMEM); 1256 } 1257 error = copyout(fp, where, sizeof(struct file)); 1258 if (error) 1259 return (error); 1260 buflen -= sizeof(struct file); 1261 where += sizeof(struct file); 1262 } 1263 *oldlenp = where - start; 1264 return (0); 1265 } 1266 1267 /* 1268 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1269 * asserts that the assigned value is in the correct range. 1270 */ 1271 static int 1272 sysctl_kern_autonice(SYSCTLFN_ARGS) 1273 { 1274 int error, t = 0; 1275 struct sysctlnode node; 1276 1277 node = *rnode; 1278 t = *(int*)node.sysctl_data; 1279 node.sysctl_data = &t; 1280 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1281 if (error || newp == NULL) 1282 return (error); 1283 1284 switch (node.sysctl_num) { 1285 case KERN_AUTONICETIME: 1286 if (t >= 0) 1287 autonicetime = t; 1288 break; 1289 case KERN_AUTONICEVAL: 1290 if (t < PRIO_MIN) 1291 t = PRIO_MIN; 1292 else if (t > PRIO_MAX) 1293 t = PRIO_MAX; 1294 autoniceval = t; 1295 break; 1296 } 1297 1298 return (0); 1299 } 1300 1301 /* 1302 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1303 * former it merely checks the message buffer is set up. for the latter, 1304 * it also copies out the data if necessary. 1305 */ 1306 static int 1307 sysctl_msgbuf(SYSCTLFN_ARGS) 1308 { 1309 char *where = oldp; 1310 size_t len, maxlen; 1311 long beg, end; 1312 int error; 1313 1314 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1315 msgbufenabled = 0; 1316 return (ENXIO); 1317 } 1318 1319 switch (rnode->sysctl_num) { 1320 case KERN_MSGBUFSIZE: { 1321 struct sysctlnode node = *rnode; 1322 int msg_bufs = (int)msgbufp->msg_bufs; 1323 node.sysctl_data = &msg_bufs; 1324 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1325 } 1326 case KERN_MSGBUF: 1327 break; 1328 default: 1329 return (EOPNOTSUPP); 1330 } 1331 1332 if (newp != NULL) 1333 return (EPERM); 1334 1335 if (oldp == NULL) { 1336 /* always return full buffer size */ 1337 *oldlenp = msgbufp->msg_bufs; 1338 return (0); 1339 } 1340 1341 error = 0; 1342 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1343 1344 /* 1345 * First, copy from the write pointer to the end of 1346 * message buffer. 1347 */ 1348 beg = msgbufp->msg_bufx; 1349 end = msgbufp->msg_bufs; 1350 while (maxlen > 0) { 1351 len = MIN(end - beg, maxlen); 1352 if (len == 0) 1353 break; 1354 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1355 if (error) 1356 break; 1357 where += len; 1358 maxlen -= len; 1359 1360 /* 1361 * ... then, copy from the beginning of message buffer to 1362 * the write pointer. 1363 */ 1364 beg = 0; 1365 end = msgbufp->msg_bufx; 1366 } 1367 1368 return (error); 1369 } 1370 1371 /* 1372 * sysctl helper routine for kern.defcorename. in the case of a new 1373 * string being assigned, check that it's not a zero-length string. 1374 * (XXX the check in -current doesn't work, but do we really care?) 1375 */ 1376 static int 1377 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1378 { 1379 int error; 1380 char newcorename[MAXPATHLEN]; 1381 struct sysctlnode node; 1382 1383 node = *rnode; 1384 node.sysctl_data = &newcorename[0]; 1385 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1386 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1387 if (error || newp == NULL) 1388 return (error); 1389 1390 /* 1391 * when sysctl_lookup() deals with a string, it's guaranteed 1392 * to come back nul terminated. so there. :) 1393 */ 1394 if (strlen(newcorename) == 0) 1395 return (EINVAL); 1396 1397 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1398 1399 return (0); 1400 } 1401 1402 /* 1403 * sysctl helper routine for kern.cp_time node. adds up cpu time 1404 * across all cpus. 1405 */ 1406 static int 1407 sysctl_kern_cptime(SYSCTLFN_ARGS) 1408 { 1409 struct sysctlnode node = *rnode; 1410 1411 #ifndef MULTIPROCESSOR 1412 1413 if (namelen == 1) { 1414 if (name[0] != 0) 1415 return (ENOENT); 1416 /* 1417 * you're allowed to ask for the zero'th processor 1418 */ 1419 name++; 1420 namelen--; 1421 } 1422 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1423 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1424 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1425 1426 #else /* MULTIPROCESSOR */ 1427 1428 u_int64_t *cp_time = NULL; 1429 int error, n = sysctl_ncpus(), i; 1430 struct cpu_info *ci; 1431 CPU_INFO_ITERATOR cii; 1432 1433 /* 1434 * if you specifically pass a buffer that is the size of the 1435 * sum, or if you are probing for the size, you get the "sum" 1436 * of cp_time (and the size thereof) across all processors. 1437 * 1438 * alternately, you can pass an additional mib number and get 1439 * cp_time for that particular processor. 1440 */ 1441 switch (namelen) { 1442 case 0: 1443 if (*oldlenp == sizeof(u_int64_t) * CPUSTATES || oldp == NULL) { 1444 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1445 n = -1; /* SUM */ 1446 } 1447 else { 1448 node.sysctl_size = n * sizeof(u_int64_t) * CPUSTATES; 1449 n = -2; /* ALL */ 1450 } 1451 break; 1452 case 1: 1453 if (name[0] < 0 || name[0] >= n) 1454 return (ENOENT); /* ENOSUCHPROCESSOR */ 1455 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1456 n = name[0]; 1457 /* 1458 * adjust these so that sysctl_lookup() will be happy 1459 */ 1460 name++; 1461 namelen--; 1462 break; 1463 default: 1464 return (EINVAL); 1465 } 1466 1467 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1468 if (cp_time == NULL) 1469 return (ENOMEM); 1470 node.sysctl_data = cp_time; 1471 memset(cp_time, 0, node.sysctl_size); 1472 1473 for (CPU_INFO_FOREACH(cii, ci)) { 1474 if (n <= 0) 1475 for (i = 0; i < CPUSTATES; i++) 1476 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1477 /* 1478 * if a specific processor was requested and we just 1479 * did it, we're done here 1480 */ 1481 if (n == 0) 1482 break; 1483 /* 1484 * if doing "all", skip to next cp_time set for next processor 1485 */ 1486 if (n == -2) 1487 cp_time += CPUSTATES; 1488 /* 1489 * if we're doing a specific processor, we're one 1490 * processor closer 1491 */ 1492 if (n > 0) 1493 n--; 1494 } 1495 1496 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1497 free(node.sysctl_data, M_TEMP); 1498 return (error); 1499 1500 #endif /* MULTIPROCESSOR */ 1501 } 1502 1503 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1504 /* 1505 * sysctl helper routine for kern.sysvipc_info subtree. 1506 */ 1507 1508 #define FILL_PERM(src, dst) do { \ 1509 (dst)._key = (src)._key; \ 1510 (dst).uid = (src).uid; \ 1511 (dst).gid = (src).gid; \ 1512 (dst).cuid = (src).cuid; \ 1513 (dst).cgid = (src).cgid; \ 1514 (dst).mode = (src).mode; \ 1515 (dst)._seq = (src)._seq; \ 1516 } while (/*CONSTCOND*/ 0); 1517 #define FILL_MSG(src, dst) do { \ 1518 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1519 (dst).msg_qnum = (src).msg_qnum; \ 1520 (dst).msg_qbytes = (src).msg_qbytes; \ 1521 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1522 (dst).msg_lspid = (src).msg_lspid; \ 1523 (dst).msg_lrpid = (src).msg_lrpid; \ 1524 (dst).msg_stime = (src).msg_stime; \ 1525 (dst).msg_rtime = (src).msg_rtime; \ 1526 (dst).msg_ctime = (src).msg_ctime; \ 1527 } while (/*CONSTCOND*/ 0) 1528 #define FILL_SEM(src, dst) do { \ 1529 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1530 (dst).sem_nsems = (src).sem_nsems; \ 1531 (dst).sem_otime = (src).sem_otime; \ 1532 (dst).sem_ctime = (src).sem_ctime; \ 1533 } while (/*CONSTCOND*/ 0) 1534 #define FILL_SHM(src, dst) do { \ 1535 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1536 (dst).shm_segsz = (src).shm_segsz; \ 1537 (dst).shm_lpid = (src).shm_lpid; \ 1538 (dst).shm_cpid = (src).shm_cpid; \ 1539 (dst).shm_atime = (src).shm_atime; \ 1540 (dst).shm_dtime = (src).shm_dtime; \ 1541 (dst).shm_ctime = (src).shm_ctime; \ 1542 (dst).shm_nattch = (src).shm_nattch; \ 1543 } while (/*CONSTCOND*/ 0) 1544 1545 static int 1546 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1547 { 1548 void *where = oldp; 1549 size_t *sizep = oldlenp; 1550 #ifdef SYSVMSG 1551 struct msg_sysctl_info *msgsi = NULL; 1552 #endif 1553 #ifdef SYSVSEM 1554 struct sem_sysctl_info *semsi = NULL; 1555 #endif 1556 #ifdef SYSVSHM 1557 struct shm_sysctl_info *shmsi = NULL; 1558 #endif 1559 size_t infosize, dssize, tsize, buflen; 1560 void *bf = NULL; 1561 char *start; 1562 int32_t nds; 1563 int i, error, ret; 1564 1565 if (namelen != 1) 1566 return (EINVAL); 1567 1568 start = where; 1569 buflen = *sizep; 1570 1571 switch (*name) { 1572 case KERN_SYSVIPC_MSG_INFO: 1573 #ifdef SYSVMSG 1574 infosize = sizeof(msgsi->msginfo); 1575 nds = msginfo.msgmni; 1576 dssize = sizeof(msgsi->msgids[0]); 1577 break; 1578 #else 1579 return (EINVAL); 1580 #endif 1581 case KERN_SYSVIPC_SEM_INFO: 1582 #ifdef SYSVSEM 1583 infosize = sizeof(semsi->seminfo); 1584 nds = seminfo.semmni; 1585 dssize = sizeof(semsi->semids[0]); 1586 break; 1587 #else 1588 return (EINVAL); 1589 #endif 1590 case KERN_SYSVIPC_SHM_INFO: 1591 #ifdef SYSVSHM 1592 infosize = sizeof(shmsi->shminfo); 1593 nds = shminfo.shmmni; 1594 dssize = sizeof(shmsi->shmids[0]); 1595 break; 1596 #else 1597 return (EINVAL); 1598 #endif 1599 default: 1600 return (EINVAL); 1601 } 1602 /* 1603 * Round infosize to 64 bit boundary if requesting more than just 1604 * the info structure or getting the total data size. 1605 */ 1606 if (where == NULL || *sizep > infosize) 1607 infosize = ((infosize + 7) / 8) * 8; 1608 tsize = infosize + nds * dssize; 1609 1610 /* Return just the total size required. */ 1611 if (where == NULL) { 1612 *sizep = tsize; 1613 return (0); 1614 } 1615 1616 /* Not enough room for even the info struct. */ 1617 if (buflen < infosize) { 1618 *sizep = 0; 1619 return (ENOMEM); 1620 } 1621 bf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1622 memset(bf, 0, min(tsize, buflen)); 1623 1624 switch (*name) { 1625 #ifdef SYSVMSG 1626 case KERN_SYSVIPC_MSG_INFO: 1627 msgsi = (struct msg_sysctl_info *)bf; 1628 msgsi->msginfo = msginfo; 1629 break; 1630 #endif 1631 #ifdef SYSVSEM 1632 case KERN_SYSVIPC_SEM_INFO: 1633 semsi = (struct sem_sysctl_info *)bf; 1634 semsi->seminfo = seminfo; 1635 break; 1636 #endif 1637 #ifdef SYSVSHM 1638 case KERN_SYSVIPC_SHM_INFO: 1639 shmsi = (struct shm_sysctl_info *)bf; 1640 shmsi->shminfo = shminfo; 1641 break; 1642 #endif 1643 } 1644 buflen -= infosize; 1645 1646 ret = 0; 1647 if (buflen > 0) { 1648 /* Fill in the IPC data structures. */ 1649 for (i = 0; i < nds; i++) { 1650 if (buflen < dssize) { 1651 ret = ENOMEM; 1652 break; 1653 } 1654 switch (*name) { 1655 #ifdef SYSVMSG 1656 case KERN_SYSVIPC_MSG_INFO: 1657 FILL_MSG(msqids[i], msgsi->msgids[i]); 1658 break; 1659 #endif 1660 #ifdef SYSVSEM 1661 case KERN_SYSVIPC_SEM_INFO: 1662 FILL_SEM(sema[i], semsi->semids[i]); 1663 break; 1664 #endif 1665 #ifdef SYSVSHM 1666 case KERN_SYSVIPC_SHM_INFO: 1667 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1668 break; 1669 #endif 1670 } 1671 buflen -= dssize; 1672 } 1673 } 1674 *sizep -= buflen; 1675 error = copyout(bf, start, *sizep); 1676 /* If copyout succeeded, use return code set earlier. */ 1677 if (error == 0) 1678 error = ret; 1679 if (bf) 1680 free(bf, M_TEMP); 1681 return (error); 1682 } 1683 1684 #undef FILL_PERM 1685 #undef FILL_MSG 1686 #undef FILL_SEM 1687 #undef FILL_SHM 1688 1689 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1690 1691 #if NPTY > 0 1692 /* 1693 * sysctl helper routine for kern.maxptys. ensures that any new value 1694 * is acceptable to the pty subsystem. 1695 */ 1696 static int 1697 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1698 { 1699 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1700 int error, xmax; 1701 struct sysctlnode node; 1702 1703 /* get current value of maxptys */ 1704 xmax = pty_maxptys(0, 0); 1705 1706 node = *rnode; 1707 node.sysctl_data = &xmax; 1708 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1709 if (error || newp == NULL) 1710 return (error); 1711 1712 if (xmax != pty_maxptys(xmax, 1)) 1713 return (EINVAL); 1714 1715 return (0); 1716 } 1717 #endif /* NPTY > 0 */ 1718 1719 /* 1720 * sysctl helper routine for kern.sbmax. basically just ensures that 1721 * any new value is not too small. 1722 */ 1723 static int 1724 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1725 { 1726 int error, new_sbmax; 1727 struct sysctlnode node; 1728 1729 new_sbmax = sb_max; 1730 node = *rnode; 1731 node.sysctl_data = &new_sbmax; 1732 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1733 if (error || newp == NULL) 1734 return (error); 1735 1736 error = sb_max_set(new_sbmax); 1737 1738 return (error); 1739 } 1740 1741 /* 1742 * sysctl helper routine for kern.urandom node. picks a random number 1743 * for you. 1744 */ 1745 static int 1746 sysctl_kern_urnd(SYSCTLFN_ARGS) 1747 { 1748 #if NRND > 0 1749 int v; 1750 1751 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1752 struct sysctlnode node = *rnode; 1753 node.sysctl_data = &v; 1754 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1755 } 1756 else 1757 return (EIO); /*XXX*/ 1758 #else 1759 return (EOPNOTSUPP); 1760 #endif 1761 } 1762 1763 /* 1764 * sysctl helper routine to do kern.lwp.* work. 1765 */ 1766 static int 1767 sysctl_kern_lwp(SYSCTLFN_ARGS) 1768 { 1769 struct kinfo_lwp klwp; 1770 struct proc *p; 1771 struct lwp *l2; 1772 char *where, *dp; 1773 int pid, elem_size, elem_count; 1774 int buflen, needed, error; 1775 1776 if (namelen == 1 && name[0] == CTL_QUERY) 1777 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1778 1779 dp = where = oldp; 1780 buflen = where != NULL ? *oldlenp : 0; 1781 error = needed = 0; 1782 1783 if (newp != NULL || namelen != 3) 1784 return (EINVAL); 1785 pid = name[0]; 1786 elem_size = name[1]; 1787 elem_count = name[2]; 1788 1789 p = pfind(pid); 1790 if (p == NULL) 1791 return (ESRCH); 1792 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1793 if (buflen >= elem_size && elem_count > 0) { 1794 fill_lwp(l2, &klwp); 1795 /* 1796 * Copy out elem_size, but not larger than 1797 * the size of a struct kinfo_proc2. 1798 */ 1799 error = copyout(&klwp, dp, 1800 min(sizeof(klwp), elem_size)); 1801 if (error) 1802 goto cleanup; 1803 dp += elem_size; 1804 buflen -= elem_size; 1805 elem_count--; 1806 } 1807 needed += elem_size; 1808 } 1809 1810 if (where != NULL) { 1811 *oldlenp = dp - where; 1812 if (needed > *oldlenp) 1813 return (ENOMEM); 1814 } else { 1815 needed += KERN_LWPSLOP; 1816 *oldlenp = needed; 1817 } 1818 return (0); 1819 cleanup: 1820 return (error); 1821 } 1822 1823 /* 1824 * sysctl helper routine for kern.forkfsleep node. ensures that the 1825 * given value is not too large or two small, and is at least one 1826 * timer tick if not zero. 1827 */ 1828 static int 1829 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1830 { 1831 /* userland sees value in ms, internally is in ticks */ 1832 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1833 int error, timo, lsleep; 1834 struct sysctlnode node; 1835 1836 lsleep = forkfsleep * 1000 / hz; 1837 node = *rnode; 1838 node.sysctl_data = &lsleep; 1839 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1840 if (error || newp == NULL) 1841 return (error); 1842 1843 /* refuse negative values, and overly 'long time' */ 1844 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1845 return (EINVAL); 1846 1847 timo = mstohz(lsleep); 1848 1849 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1850 if (lsleep != 0 && timo == 0) 1851 forkfsleep = 1; 1852 else 1853 forkfsleep = timo; 1854 1855 return (0); 1856 } 1857 1858 /* 1859 * sysctl helper routine for kern.root_partition 1860 */ 1861 static int 1862 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1863 { 1864 int rootpart = DISKPART(rootdev); 1865 struct sysctlnode node = *rnode; 1866 1867 node.sysctl_data = &rootpart; 1868 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1869 } 1870 1871 /* 1872 * sysctl helper function for kern.drivers 1873 */ 1874 static int 1875 sysctl_kern_drivers(SYSCTLFN_ARGS) 1876 { 1877 int error; 1878 size_t buflen; 1879 struct kinfo_drivers kd; 1880 char *start, *where; 1881 const char *dname; 1882 int i; 1883 extern struct devsw_conv *devsw_conv; 1884 extern int max_devsw_convs; 1885 1886 if (newp != NULL || namelen != 0) 1887 return (EINVAL); 1888 1889 start = where = oldp; 1890 buflen = *oldlenp; 1891 if (where == NULL) { 1892 *oldlenp = max_devsw_convs * sizeof kd; 1893 return 0; 1894 } 1895 1896 /* 1897 * An array of kinfo_drivers structures 1898 */ 1899 error = 0; 1900 for (i = 0; i < max_devsw_convs; i++) { 1901 dname = devsw_conv[i].d_name; 1902 if (dname == NULL) 1903 continue; 1904 if (buflen < sizeof kd) { 1905 error = ENOMEM; 1906 break; 1907 } 1908 memset(&kd, 0, sizeof(kd)); 1909 kd.d_bmajor = devsw_conv[i].d_bmajor; 1910 kd.d_cmajor = devsw_conv[i].d_cmajor; 1911 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1912 error = copyout(&kd, where, sizeof kd); 1913 if (error != 0) 1914 break; 1915 buflen -= sizeof kd; 1916 where += sizeof kd; 1917 } 1918 *oldlenp = where - start; 1919 return error; 1920 } 1921 1922 /* 1923 * sysctl helper function for kern.file2 1924 */ 1925 static int 1926 sysctl_kern_file2(SYSCTLFN_ARGS) 1927 { 1928 struct proc *p; 1929 struct file *fp; 1930 struct filedesc *fd; 1931 struct kinfo_file kf; 1932 char *dp; 1933 u_int i, op; 1934 size_t len, needed, elem_size, out_size; 1935 int error, arg, elem_count; 1936 1937 if (namelen == 1 && name[0] == CTL_QUERY) 1938 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1939 1940 if (namelen != 4) 1941 return (EINVAL); 1942 1943 error = 0; 1944 dp = oldp; 1945 len = (oldp != NULL) ? *oldlenp : 0; 1946 op = name[0]; 1947 arg = name[1]; 1948 elem_size = name[2]; 1949 elem_count = name[3]; 1950 out_size = MIN(sizeof(kf), elem_size); 1951 needed = 0; 1952 1953 if (elem_size < 1 || elem_count < 0) 1954 return (EINVAL); 1955 1956 switch (op) { 1957 case KERN_FILE_BYFILE: 1958 /* 1959 * doesn't use arg so it must be zero 1960 */ 1961 if (arg != 0) 1962 return (EINVAL); 1963 LIST_FOREACH(fp, &filehead, f_list) { 1964 if (len >= elem_size && elem_count > 0) { 1965 fill_file(&kf, fp, NULL, 0); 1966 error = copyout(&kf, dp, out_size); 1967 if (error) 1968 break; 1969 dp += elem_size; 1970 len -= elem_size; 1971 } 1972 if (elem_count > 0) { 1973 needed += elem_size; 1974 if (elem_count != INT_MAX) 1975 elem_count--; 1976 } 1977 } 1978 break; 1979 case KERN_FILE_BYPID: 1980 if (arg < -1) 1981 /* -1 means all processes */ 1982 return (EINVAL); 1983 proclist_lock_read(); 1984 PROCLIST_FOREACH(p, &allproc) { 1985 if (p->p_stat == SIDL) 1986 /* skip embryonic processes */ 1987 continue; 1988 if (arg > 0 && p->p_pid != arg) 1989 /* pick only the one we want */ 1990 /* XXX want 0 to mean "kernel files" */ 1991 continue; 1992 fd = p->p_fd; 1993 for (i = 0; i < fd->fd_nfiles; i++) { 1994 fp = fd->fd_ofiles[i]; 1995 if (fp == NULL || !FILE_IS_USABLE(fp)) 1996 continue; 1997 if (len >= elem_size && elem_count > 0) { 1998 fill_file(&kf, fd->fd_ofiles[i], 1999 p, i); 2000 error = copyout(&kf, dp, out_size); 2001 if (error) 2002 break; 2003 dp += elem_size; 2004 len -= elem_size; 2005 } 2006 if (elem_count > 0) { 2007 needed += elem_size; 2008 if (elem_count != INT_MAX) 2009 elem_count--; 2010 } 2011 } 2012 } 2013 proclist_unlock_read(); 2014 break; 2015 default: 2016 return (EINVAL); 2017 } 2018 2019 if (oldp == NULL) 2020 needed += KERN_FILESLOP * elem_size; 2021 *oldlenp = needed; 2022 2023 return (error); 2024 } 2025 2026 static void 2027 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2028 { 2029 2030 memset(kp, 0, sizeof(*kp)); 2031 2032 kp->ki_fileaddr = PTRTOUINT64(fp); 2033 kp->ki_flag = fp->f_flag; 2034 kp->ki_iflags = fp->f_iflags; 2035 kp->ki_ftype = fp->f_type; 2036 kp->ki_count = fp->f_count; 2037 kp->ki_msgcount = fp->f_msgcount; 2038 kp->ki_usecount = fp->f_usecount; 2039 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2040 kp->ki_fuid = fp->f_cred->cr_uid; 2041 kp->ki_fgid = fp->f_cred->cr_gid; 2042 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2043 kp->ki_foffset = fp->f_offset; 2044 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2045 2046 /* vnode information to glue this file to something */ 2047 if (fp->f_type == DTYPE_VNODE) { 2048 struct vnode *vp = (struct vnode *)fp->f_data; 2049 2050 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2051 kp->ki_vsize = vp->v_size; 2052 kp->ki_vtype = vp->v_type; 2053 kp->ki_vtag = vp->v_tag; 2054 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2055 } 2056 2057 /* process information when retrieved via KERN_FILE_BYPID */ 2058 if (p) { 2059 kp->ki_pid = p->p_pid; 2060 kp->ki_fd = i; 2061 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2062 } 2063 } 2064 2065 static int 2066 sysctl_doeproc(SYSCTLFN_ARGS) 2067 { 2068 struct eproc eproc; 2069 struct kinfo_proc2 kproc2; 2070 struct kinfo_proc *dp; 2071 struct proc *p; 2072 const struct proclist_desc *pd; 2073 char *where, *dp2; 2074 int type, op, arg; 2075 u_int elem_size, elem_count; 2076 size_t buflen, needed; 2077 int error; 2078 2079 if (namelen == 1 && name[0] == CTL_QUERY) 2080 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2081 2082 dp = oldp; 2083 dp2 = where = oldp; 2084 buflen = where != NULL ? *oldlenp : 0; 2085 error = 0; 2086 needed = 0; 2087 type = rnode->sysctl_num; 2088 2089 if (type == KERN_PROC) { 2090 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2091 return (EINVAL); 2092 op = name[0]; 2093 if (op != KERN_PROC_ALL) 2094 arg = name[1]; 2095 else 2096 arg = 0; /* Quell compiler warning */ 2097 elem_size = elem_count = 0; /* Ditto */ 2098 } else { 2099 if (namelen != 4) 2100 return (EINVAL); 2101 op = name[0]; 2102 arg = name[1]; 2103 elem_size = name[2]; 2104 elem_count = name[3]; 2105 } 2106 2107 proclist_lock_read(); 2108 2109 pd = proclists; 2110 again: 2111 PROCLIST_FOREACH(p, pd->pd_list) { 2112 /* 2113 * Skip embryonic processes. 2114 */ 2115 if (p->p_stat == SIDL) 2116 continue; 2117 /* 2118 * TODO - make more efficient (see notes below). 2119 * do by session. 2120 */ 2121 switch (op) { 2122 2123 case KERN_PROC_PID: 2124 /* could do this with just a lookup */ 2125 if (p->p_pid != (pid_t)arg) 2126 continue; 2127 break; 2128 2129 case KERN_PROC_PGRP: 2130 /* could do this by traversing pgrp */ 2131 if (p->p_pgrp->pg_id != (pid_t)arg) 2132 continue; 2133 break; 2134 2135 case KERN_PROC_SESSION: 2136 if (p->p_session->s_sid != (pid_t)arg) 2137 continue; 2138 break; 2139 2140 case KERN_PROC_TTY: 2141 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2142 if ((p->p_flag & P_CONTROLT) == 0 || 2143 p->p_session->s_ttyp == NULL || 2144 p->p_session->s_ttyvp != NULL) 2145 continue; 2146 } else if ((p->p_flag & P_CONTROLT) == 0 || 2147 p->p_session->s_ttyp == NULL) { 2148 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2149 continue; 2150 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2151 continue; 2152 break; 2153 2154 case KERN_PROC_UID: 2155 if (p->p_ucred->cr_uid != (uid_t)arg) 2156 continue; 2157 break; 2158 2159 case KERN_PROC_RUID: 2160 if (p->p_cred->p_ruid != (uid_t)arg) 2161 continue; 2162 break; 2163 2164 case KERN_PROC_GID: 2165 if (p->p_ucred->cr_gid != (uid_t)arg) 2166 continue; 2167 break; 2168 2169 case KERN_PROC_RGID: 2170 if (p->p_cred->p_rgid != (uid_t)arg) 2171 continue; 2172 break; 2173 2174 case KERN_PROC_ALL: 2175 /* allow everything */ 2176 break; 2177 2178 default: 2179 error = EINVAL; 2180 goto cleanup; 2181 } 2182 if (type == KERN_PROC) { 2183 if (buflen >= sizeof(struct kinfo_proc)) { 2184 fill_eproc(p, &eproc); 2185 error = copyout(p, &dp->kp_proc, 2186 sizeof(struct proc)); 2187 if (error) 2188 goto cleanup; 2189 error = copyout(&eproc, &dp->kp_eproc, 2190 sizeof(eproc)); 2191 if (error) 2192 goto cleanup; 2193 dp++; 2194 buflen -= sizeof(struct kinfo_proc); 2195 } 2196 needed += sizeof(struct kinfo_proc); 2197 } else { /* KERN_PROC2 */ 2198 if (buflen >= elem_size && elem_count > 0) { 2199 fill_kproc2(p, &kproc2); 2200 /* 2201 * Copy out elem_size, but not larger than 2202 * the size of a struct kinfo_proc2. 2203 */ 2204 error = copyout(&kproc2, dp2, 2205 min(sizeof(kproc2), elem_size)); 2206 if (error) 2207 goto cleanup; 2208 dp2 += elem_size; 2209 buflen -= elem_size; 2210 elem_count--; 2211 } 2212 needed += elem_size; 2213 } 2214 } 2215 pd++; 2216 if (pd->pd_list != NULL) 2217 goto again; 2218 proclist_unlock_read(); 2219 2220 if (where != NULL) { 2221 if (type == KERN_PROC) 2222 *oldlenp = (char *)dp - where; 2223 else 2224 *oldlenp = dp2 - where; 2225 if (needed > *oldlenp) 2226 return (ENOMEM); 2227 } else { 2228 needed += KERN_PROCSLOP; 2229 *oldlenp = needed; 2230 } 2231 return (0); 2232 cleanup: 2233 proclist_unlock_read(); 2234 return (error); 2235 } 2236 2237 /* 2238 * sysctl helper routine for kern.proc_args pseudo-subtree. 2239 */ 2240 static int 2241 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2242 { 2243 struct ps_strings pss; 2244 struct proc *p, *up = l->l_proc; 2245 size_t len, upper_bound, xlen, i; 2246 struct uio auio; 2247 struct iovec aiov; 2248 vaddr_t argv; 2249 pid_t pid; 2250 int nargv, type, error; 2251 char *arg; 2252 char *tmp; 2253 2254 if (namelen == 1 && name[0] == CTL_QUERY) 2255 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2256 2257 if (newp != NULL || namelen != 2) 2258 return (EINVAL); 2259 pid = name[0]; 2260 type = name[1]; 2261 2262 switch (type) { 2263 case KERN_PROC_ARGV: 2264 case KERN_PROC_NARGV: 2265 case KERN_PROC_ENV: 2266 case KERN_PROC_NENV: 2267 /* ok */ 2268 break; 2269 default: 2270 return (EINVAL); 2271 } 2272 2273 /* check pid */ 2274 if ((p = pfind(pid)) == NULL) 2275 return (EINVAL); 2276 2277 /* only root or same user change look at the environment */ 2278 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2279 if (up->p_ucred->cr_uid != 0) { 2280 if (up->p_cred->p_ruid != p->p_cred->p_ruid || 2281 up->p_cred->p_ruid != p->p_cred->p_svuid) 2282 return (EPERM); 2283 } 2284 } 2285 2286 if (oldp == NULL) { 2287 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2288 *oldlenp = sizeof (int); 2289 else 2290 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2291 return (0); 2292 } 2293 2294 /* 2295 * Zombies don't have a stack, so we can't read their psstrings. 2296 * System processes also don't have a user stack. 2297 */ 2298 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) 2299 return (EINVAL); 2300 2301 /* 2302 * Lock the process down in memory. 2303 */ 2304 /* XXXCDC: how should locking work here? */ 2305 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) 2306 return (EFAULT); 2307 2308 p->p_vmspace->vm_refcnt++; /* XXX */ 2309 2310 /* 2311 * Allocate a temporary buffer to hold the arguments. 2312 */ 2313 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2314 2315 /* 2316 * Read in the ps_strings structure. 2317 */ 2318 aiov.iov_base = &pss; 2319 aiov.iov_len = sizeof(pss); 2320 auio.uio_iov = &aiov; 2321 auio.uio_iovcnt = 1; 2322 auio.uio_offset = (vaddr_t)p->p_psstr; 2323 auio.uio_resid = sizeof(pss); 2324 auio.uio_segflg = UIO_SYSSPACE; 2325 auio.uio_rw = UIO_READ; 2326 auio.uio_procp = NULL; 2327 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2328 if (error) 2329 goto done; 2330 2331 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2332 memcpy(&nargv, (char *)&pss + p->p_psnargv, sizeof(nargv)); 2333 else 2334 memcpy(&nargv, (char *)&pss + p->p_psnenv, sizeof(nargv)); 2335 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2336 error = copyout(&nargv, oldp, sizeof(nargv)); 2337 *oldlenp = sizeof(nargv); 2338 goto done; 2339 } 2340 /* 2341 * Now read the address of the argument vector. 2342 */ 2343 switch (type) { 2344 case KERN_PROC_ARGV: 2345 /* XXX compat32 stuff here */ 2346 memcpy(&tmp, (char *)&pss + p->p_psargv, sizeof(tmp)); 2347 break; 2348 case KERN_PROC_ENV: 2349 memcpy(&tmp, (char *)&pss + p->p_psenv, sizeof(tmp)); 2350 break; 2351 default: 2352 return (EINVAL); 2353 } 2354 auio.uio_offset = (off_t)(unsigned long)tmp; 2355 aiov.iov_base = &argv; 2356 aiov.iov_len = sizeof(argv); 2357 auio.uio_iov = &aiov; 2358 auio.uio_iovcnt = 1; 2359 auio.uio_resid = sizeof(argv); 2360 auio.uio_segflg = UIO_SYSSPACE; 2361 auio.uio_rw = UIO_READ; 2362 auio.uio_procp = NULL; 2363 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2364 if (error) 2365 goto done; 2366 2367 /* 2368 * Now copy in the actual argument vector, one page at a time, 2369 * since we don't know how long the vector is (though, we do 2370 * know how many NUL-terminated strings are in the vector). 2371 */ 2372 len = 0; 2373 upper_bound = *oldlenp; 2374 for (; nargv != 0 && len < upper_bound; len += xlen) { 2375 aiov.iov_base = arg; 2376 aiov.iov_len = PAGE_SIZE; 2377 auio.uio_iov = &aiov; 2378 auio.uio_iovcnt = 1; 2379 auio.uio_offset = argv + len; 2380 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2381 auio.uio_resid = xlen; 2382 auio.uio_segflg = UIO_SYSSPACE; 2383 auio.uio_rw = UIO_READ; 2384 auio.uio_procp = NULL; 2385 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2386 if (error) 2387 goto done; 2388 2389 for (i = 0; i < xlen && nargv != 0; i++) { 2390 if (arg[i] == '\0') 2391 nargv--; /* one full string */ 2392 } 2393 2394 /* 2395 * Make sure we don't copyout past the end of the user's 2396 * buffer. 2397 */ 2398 if (len + i > upper_bound) 2399 i = upper_bound - len; 2400 2401 error = copyout(arg, (char *)oldp + len, i); 2402 if (error) 2403 break; 2404 2405 if (nargv == 0) { 2406 len += i; 2407 break; 2408 } 2409 } 2410 *oldlenp = len; 2411 2412 done: 2413 uvmspace_free(p->p_vmspace); 2414 2415 free(arg, M_TEMP); 2416 return (error); 2417 } 2418 2419 /* 2420 * Sysctl helper routine for Verified Exec. 2421 */ 2422 #ifdef VERIFIED_EXEC 2423 static int 2424 sysctl_kern_veriexec(SYSCTLFN_ARGS) 2425 { 2426 int newval, error; 2427 int *var = NULL, raise_only = 0; 2428 struct sysctlnode node; 2429 2430 node = *rnode; 2431 2432 switch (rnode->sysctl_num) { 2433 case VERIEXEC_STRICT: 2434 raise_only = 1; 2435 var = &veriexec_strict; 2436 break; 2437 case VERIEXEC_ALGORITHMS: 2438 node.sysctl_data = veriexec_fp_names; 2439 node.sysctl_size = strlen(veriexec_fp_names) + 1; 2440 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2441 default: 2442 return (EINVAL); 2443 } 2444 2445 newval = *var; 2446 2447 node.sysctl_data = &newval; 2448 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2449 if (error || newp == NULL) { 2450 return (error); 2451 } 2452 2453 if (raise_only && (newval < *var)) 2454 return (EPERM); 2455 2456 *var = newval; 2457 2458 return (error); 2459 } 2460 #endif /* VERIFIED_EXEC */ 2461 2462 /* 2463 * sysctl helper routine for kern.cp_id node. maps cpus to their 2464 * cpuids. 2465 */ 2466 static int 2467 sysctl_kern_cpid(SYSCTLFN_ARGS) 2468 { 2469 struct sysctlnode node = *rnode; 2470 2471 #ifndef MULTIPROCESSOR 2472 u_int64_t id; 2473 2474 if (namelen == 1) { 2475 if (name[0] != 0) 2476 return (ENOENT); 2477 /* 2478 * you're allowed to ask for the zero'th processor 2479 */ 2480 name++; 2481 namelen--; 2482 } 2483 node.sysctl_data = &id; 2484 node.sysctl_size = sizeof(id); 2485 id = cpu_number(); 2486 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2487 2488 #else /* MULTIPROCESSOR */ 2489 u_int64_t *cp_id = NULL; 2490 int error, n = sysctl_ncpus(); 2491 struct cpu_info *ci; 2492 CPU_INFO_ITERATOR cii; 2493 2494 /* 2495 * here you may either retrieve a single cpu id or the whole 2496 * set. the size you get back when probing depends on what 2497 * you ask for. 2498 */ 2499 switch (namelen) { 2500 case 0: 2501 node.sysctl_size = n * sizeof(u_int64_t); 2502 n = -2; /* ALL */ 2503 break; 2504 case 1: 2505 if (name[0] < 0 || name[0] >= n) 2506 return (ENOENT); /* ENOSUCHPROCESSOR */ 2507 node.sysctl_size = sizeof(u_int64_t); 2508 n = name[0]; 2509 /* 2510 * adjust these so that sysctl_lookup() will be happy 2511 */ 2512 name++; 2513 namelen--; 2514 break; 2515 default: 2516 return (EINVAL); 2517 } 2518 2519 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2520 if (cp_id == NULL) 2521 return (ENOMEM); 2522 node.sysctl_data = cp_id; 2523 memset(cp_id, 0, node.sysctl_size); 2524 2525 for (CPU_INFO_FOREACH(cii, ci)) { 2526 if (n <= 0) 2527 cp_id[0] = ci->ci_cpuid; 2528 /* 2529 * if a specific processor was requested and we just 2530 * did it, we're done here 2531 */ 2532 if (n == 0) 2533 break; 2534 /* 2535 * if doing "all", skip to next cp_id slot for next processor 2536 */ 2537 if (n == -2) 2538 cp_id++; 2539 /* 2540 * if we're doing a specific processor, we're one 2541 * processor closer 2542 */ 2543 if (n > 0) 2544 n--; 2545 } 2546 2547 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2548 free(node.sysctl_data, M_TEMP); 2549 return (error); 2550 2551 #endif /* MULTIPROCESSOR */ 2552 } 2553 2554 /* 2555 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2556 * calculate on the fly taking into account integer overflow and the 2557 * current wired count. 2558 */ 2559 static int 2560 sysctl_hw_usermem(SYSCTLFN_ARGS) 2561 { 2562 u_int ui; 2563 u_quad_t uq; 2564 struct sysctlnode node; 2565 2566 node = *rnode; 2567 switch (rnode->sysctl_num) { 2568 case HW_USERMEM: 2569 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2570 ui = UINT_MAX; 2571 else 2572 ui *= PAGE_SIZE; 2573 node.sysctl_data = &ui; 2574 break; 2575 case HW_USERMEM64: 2576 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2577 node.sysctl_data = &uq; 2578 break; 2579 default: 2580 return (EINVAL); 2581 } 2582 2583 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2584 } 2585 2586 /* 2587 * sysctl helper routine for kern.cnmagic node. pulls the old value 2588 * out, encoded, and stuffs the new value in for decoding. 2589 */ 2590 static int 2591 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2592 { 2593 char magic[CNS_LEN]; 2594 int error; 2595 struct sysctlnode node; 2596 2597 if (oldp) 2598 cn_get_magic(magic, CNS_LEN); 2599 node = *rnode; 2600 node.sysctl_data = &magic[0]; 2601 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2602 if (error || newp == NULL) 2603 return (error); 2604 2605 return (cn_set_magic(magic)); 2606 } 2607 2608 static int 2609 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2610 { 2611 int ncpu; 2612 struct sysctlnode node; 2613 2614 ncpu = sysctl_ncpus(); 2615 node = *rnode; 2616 node.sysctl_data = &ncpu; 2617 2618 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2619 } 2620 2621 2622 /* 2623 * ******************************************************************** 2624 * section 3: public helper routines that are used for more than one 2625 * node 2626 * ******************************************************************** 2627 */ 2628 2629 /* 2630 * sysctl helper routine for the kern.root_device node and some ports' 2631 * machdep.root_device nodes. 2632 */ 2633 int 2634 sysctl_root_device(SYSCTLFN_ARGS) 2635 { 2636 struct sysctlnode node; 2637 2638 node = *rnode; 2639 node.sysctl_data = root_device->dv_xname; 2640 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2641 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2642 } 2643 2644 /* 2645 * sysctl helper routine for kern.consdev, dependent on the current 2646 * state of the console. also used for machdep.console_device on some 2647 * ports. 2648 */ 2649 int 2650 sysctl_consdev(SYSCTLFN_ARGS) 2651 { 2652 dev_t consdev; 2653 struct sysctlnode node; 2654 2655 if (cn_tab != NULL) 2656 consdev = cn_tab->cn_dev; 2657 else 2658 consdev = NODEV; 2659 node = *rnode; 2660 node.sysctl_data = &consdev; 2661 node.sysctl_size = sizeof(consdev); 2662 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2663 } 2664 2665 /* 2666 * ******************************************************************** 2667 * section 4: support for some helpers 2668 * ******************************************************************** 2669 */ 2670 2671 /* 2672 * Fill in a kinfo_proc2 structure for the specified process. 2673 */ 2674 static void 2675 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2676 { 2677 struct tty *tp; 2678 struct lwp *l; 2679 struct timeval ut, st; 2680 2681 memset(ki, 0, sizeof(*ki)); 2682 2683 ki->p_paddr = PTRTOUINT64(p); 2684 ki->p_fd = PTRTOUINT64(p->p_fd); 2685 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2686 ki->p_stats = PTRTOUINT64(p->p_stats); 2687 ki->p_limit = PTRTOUINT64(p->p_limit); 2688 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2689 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2690 ki->p_sess = PTRTOUINT64(p->p_session); 2691 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2692 ki->p_ru = PTRTOUINT64(p->p_ru); 2693 2694 ki->p_eflag = 0; 2695 ki->p_exitsig = p->p_exitsig; 2696 ki->p_flag = p->p_flag; 2697 2698 ki->p_pid = p->p_pid; 2699 if (p->p_pptr) 2700 ki->p_ppid = p->p_pptr->p_pid; 2701 else 2702 ki->p_ppid = 0; 2703 ki->p_sid = p->p_session->s_sid; 2704 ki->p__pgid = p->p_pgrp->pg_id; 2705 2706 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2707 2708 ki->p_uid = p->p_ucred->cr_uid; 2709 ki->p_ruid = p->p_cred->p_ruid; 2710 ki->p_gid = p->p_ucred->cr_gid; 2711 ki->p_rgid = p->p_cred->p_rgid; 2712 ki->p_svuid = p->p_cred->p_svuid; 2713 ki->p_svgid = p->p_cred->p_svgid; 2714 2715 memcpy(ki->p_groups, p->p_cred->pc_ucred->cr_groups, 2716 min(sizeof(ki->p_groups), sizeof(p->p_cred->pc_ucred->cr_groups))); 2717 ki->p_ngroups = p->p_cred->pc_ucred->cr_ngroups; 2718 2719 ki->p_jobc = p->p_pgrp->pg_jobc; 2720 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2721 ki->p_tdev = tp->t_dev; 2722 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2723 ki->p_tsess = PTRTOUINT64(tp->t_session); 2724 } else { 2725 ki->p_tdev = NODEV; 2726 } 2727 2728 ki->p_estcpu = p->p_estcpu; 2729 ki->p_rtime_sec = p->p_rtime.tv_sec; 2730 ki->p_rtime_usec = p->p_rtime.tv_usec; 2731 ki->p_cpticks = p->p_cpticks; 2732 ki->p_pctcpu = p->p_pctcpu; 2733 2734 ki->p_uticks = p->p_uticks; 2735 ki->p_sticks = p->p_sticks; 2736 ki->p_iticks = p->p_iticks; 2737 2738 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2739 ki->p_traceflag = p->p_traceflag; 2740 2741 2742 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2743 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2744 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2745 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2746 2747 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2748 ki->p_realstat = p->p_stat; 2749 ki->p_nice = p->p_nice; 2750 2751 ki->p_xstat = p->p_xstat; 2752 ki->p_acflag = p->p_acflag; 2753 2754 strncpy(ki->p_comm, p->p_comm, 2755 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2756 2757 strncpy(ki->p_login, p->p_session->s_login, 2758 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2759 2760 ki->p_nlwps = p->p_nlwps; 2761 ki->p_nrlwps = p->p_nrlwps; 2762 ki->p_realflag = p->p_flag; 2763 2764 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2765 ki->p_vm_rssize = 0; 2766 ki->p_vm_tsize = 0; 2767 ki->p_vm_dsize = 0; 2768 ki->p_vm_ssize = 0; 2769 l = NULL; 2770 } else { 2771 struct vmspace *vm = p->p_vmspace; 2772 2773 ki->p_vm_rssize = vm_resident_count(vm); 2774 ki->p_vm_tsize = vm->vm_tsize; 2775 ki->p_vm_dsize = vm->vm_dsize; 2776 ki->p_vm_ssize = vm->vm_ssize; 2777 2778 /* Pick a "representative" LWP */ 2779 l = proc_representative_lwp(p); 2780 ki->p_forw = PTRTOUINT64(l->l_forw); 2781 ki->p_back = PTRTOUINT64(l->l_back); 2782 ki->p_addr = PTRTOUINT64(l->l_addr); 2783 ki->p_stat = l->l_stat; 2784 ki->p_flag |= l->l_flag; 2785 ki->p_swtime = l->l_swtime; 2786 ki->p_slptime = l->l_slptime; 2787 if (l->l_stat == LSONPROC) { 2788 KDASSERT(l->l_cpu != NULL); 2789 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2790 } else 2791 ki->p_schedflags = 0; 2792 ki->p_holdcnt = l->l_holdcnt; 2793 ki->p_priority = l->l_priority; 2794 ki->p_usrpri = l->l_usrpri; 2795 if (l->l_wmesg) 2796 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2797 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2798 2799 } 2800 2801 if (p->p_session->s_ttyvp) 2802 ki->p_eflag |= EPROC_CTTY; 2803 if (SESS_LEADER(p)) 2804 ki->p_eflag |= EPROC_SLEADER; 2805 2806 /* XXX Is this double check necessary? */ 2807 if (P_ZOMBIE(p)) { 2808 ki->p_uvalid = 0; 2809 } else { 2810 ki->p_uvalid = 1; 2811 2812 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2813 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2814 2815 calcru(p, &ut, &st, 0); 2816 ki->p_uutime_sec = ut.tv_sec; 2817 ki->p_uutime_usec = ut.tv_usec; 2818 ki->p_ustime_sec = st.tv_sec; 2819 ki->p_ustime_usec = st.tv_usec; 2820 2821 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2822 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2823 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2824 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2825 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2826 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2827 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2828 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2829 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2830 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2831 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2832 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2833 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 2834 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 2835 2836 timeradd(&p->p_stats->p_cru.ru_utime, 2837 &p->p_stats->p_cru.ru_stime, &ut); 2838 ki->p_uctime_sec = ut.tv_sec; 2839 ki->p_uctime_usec = ut.tv_usec; 2840 } 2841 #ifdef MULTIPROCESSOR 2842 if (l && l->l_cpu != NULL) 2843 ki->p_cpuid = l->l_cpu->ci_cpuid; 2844 else 2845 #endif 2846 ki->p_cpuid = KI_NOCPU; 2847 } 2848 2849 /* 2850 * Fill in a kinfo_lwp structure for the specified lwp. 2851 */ 2852 static void 2853 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2854 { 2855 2856 kl->l_forw = PTRTOUINT64(l->l_forw); 2857 kl->l_back = PTRTOUINT64(l->l_back); 2858 kl->l_laddr = PTRTOUINT64(l); 2859 kl->l_addr = PTRTOUINT64(l->l_addr); 2860 kl->l_stat = l->l_stat; 2861 kl->l_lid = l->l_lid; 2862 kl->l_flag = l->l_flag; 2863 2864 kl->l_swtime = l->l_swtime; 2865 kl->l_slptime = l->l_slptime; 2866 if (l->l_stat == LSONPROC) { 2867 KDASSERT(l->l_cpu != NULL); 2868 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2869 } else 2870 kl->l_schedflags = 0; 2871 kl->l_holdcnt = l->l_holdcnt; 2872 kl->l_priority = l->l_priority; 2873 kl->l_usrpri = l->l_usrpri; 2874 if (l->l_wmesg) 2875 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2876 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2877 #ifdef MULTIPROCESSOR 2878 if (l->l_cpu != NULL) 2879 kl->l_cpuid = l->l_cpu->ci_cpuid; 2880 else 2881 #endif 2882 kl->l_cpuid = KI_NOCPU; 2883 } 2884 2885 /* 2886 * Fill in an eproc structure for the specified process. 2887 */ 2888 void 2889 fill_eproc(struct proc *p, struct eproc *ep) 2890 { 2891 struct tty *tp; 2892 struct lwp *l; 2893 2894 ep->e_paddr = p; 2895 ep->e_sess = p->p_session; 2896 ep->e_pcred = *p->p_cred; 2897 ep->e_ucred = *p->p_ucred; 2898 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2899 ep->e_vm.vm_rssize = 0; 2900 ep->e_vm.vm_tsize = 0; 2901 ep->e_vm.vm_dsize = 0; 2902 ep->e_vm.vm_ssize = 0; 2903 /* ep->e_vm.vm_pmap = XXX; */ 2904 } else { 2905 struct vmspace *vm = p->p_vmspace; 2906 2907 ep->e_vm.vm_rssize = vm_resident_count(vm); 2908 ep->e_vm.vm_tsize = vm->vm_tsize; 2909 ep->e_vm.vm_dsize = vm->vm_dsize; 2910 ep->e_vm.vm_ssize = vm->vm_ssize; 2911 2912 /* Pick a "representative" LWP */ 2913 l = proc_representative_lwp(p); 2914 2915 if (l->l_wmesg) 2916 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2917 } 2918 if (p->p_pptr) 2919 ep->e_ppid = p->p_pptr->p_pid; 2920 else 2921 ep->e_ppid = 0; 2922 ep->e_pgid = p->p_pgrp->pg_id; 2923 ep->e_sid = ep->e_sess->s_sid; 2924 ep->e_jobc = p->p_pgrp->pg_jobc; 2925 if ((p->p_flag & P_CONTROLT) && 2926 (tp = ep->e_sess->s_ttyp)) { 2927 ep->e_tdev = tp->t_dev; 2928 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2929 ep->e_tsess = tp->t_session; 2930 } else 2931 ep->e_tdev = NODEV; 2932 2933 ep->e_xsize = ep->e_xrssize = 0; 2934 ep->e_xccount = ep->e_xswrss = 0; 2935 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2936 if (SESS_LEADER(p)) 2937 ep->e_flag |= EPROC_SLEADER; 2938 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2939 } 2940
Indexes created Wed Oct 01 15:09:59 GMT 2025