init_sysctl.c revision 1.39
1 /* $NetBSD: init_sysctl.c,v 1.39 2005/05/22 22:34:01 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 1.39 2005/05/22 22:34:01 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 #define VERIEXEC_NEED_NODE 73 #include <sys/verified_exec.h> 74 75 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 76 #include <sys/ipc.h> 77 #endif 78 #ifdef SYSVMSG 79 #include <sys/msg.h> 80 #endif 81 #ifdef SYSVSEM 82 #include <sys/sem.h> 83 #endif 84 #ifdef SYSVSHM 85 #include <sys/shm.h> 86 #endif 87 88 #include <machine/cpu.h> 89 90 /* 91 * try over estimating by 5 procs/lwps 92 */ 93 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 94 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 95 96 #ifndef MULTIPROCESSOR 97 #define sysctl_ncpus() (1) 98 #else /* MULTIPROCESSOR */ 99 #ifndef CPU_INFO_FOREACH 100 #define CPU_INFO_ITERATOR int 101 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 102 #endif 103 static int 104 sysctl_ncpus(void) 105 { 106 struct cpu_info *ci; 107 CPU_INFO_ITERATOR cii; 108 109 int ncpus = 0; 110 for (CPU_INFO_FOREACH(cii, ci)) 111 ncpus++; 112 return (ncpus); 113 } 114 #endif /* MULTIPROCESSOR */ 115 116 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 117 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 118 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 119 static int sysctl_kern_securelevel(SYSCTLFN_PROTO); 120 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 121 static int sysctl_setlen(SYSCTLFN_PROTO); 122 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 123 static int sysctl_kern_file(SYSCTLFN_PROTO); 124 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 125 static int sysctl_msgbuf(SYSCTLFN_PROTO); 126 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 127 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 128 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 129 static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 130 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 131 #if NPTY > 0 132 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 133 #endif /* NPTY > 0 */ 134 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 135 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 136 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 137 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 138 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 139 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 140 static int sysctl_kern_file2(SYSCTLFN_PROTO); 141 #ifdef VERIFIED_EXEC 142 static int sysctl_kern_veriexec(SYSCTLFN_PROTO); 143 #endif 144 static int sysctl_doeproc(SYSCTLFN_PROTO); 145 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 146 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 147 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 148 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 149 150 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 151 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 152 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 153 int); 154 155 /* 156 * ******************************************************************** 157 * section 1: setup routines 158 * ******************************************************************** 159 * these functions are stuffed into a link set for sysctl setup 160 * functions. they're never called or referenced from anywhere else. 161 * ******************************************************************** 162 */ 163 164 /* 165 * sets up the base nodes... 166 */ 167 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 168 { 169 170 sysctl_createv(clog, 0, NULL, NULL, 171 CTLFLAG_PERMANENT, 172 CTLTYPE_NODE, "kern", 173 SYSCTL_DESCR("High kernel"), 174 NULL, 0, NULL, 0, 175 CTL_KERN, CTL_EOL); 176 sysctl_createv(clog, 0, NULL, NULL, 177 CTLFLAG_PERMANENT, 178 CTLTYPE_NODE, "vm", 179 SYSCTL_DESCR("Virtual memory"), 180 NULL, 0, NULL, 0, 181 CTL_VM, CTL_EOL); 182 sysctl_createv(clog, 0, NULL, NULL, 183 CTLFLAG_PERMANENT, 184 CTLTYPE_NODE, "vfs", 185 SYSCTL_DESCR("Filesystem"), 186 NULL, 0, NULL, 0, 187 CTL_VFS, CTL_EOL); 188 sysctl_createv(clog, 0, NULL, NULL, 189 CTLFLAG_PERMANENT, 190 CTLTYPE_NODE, "net", 191 SYSCTL_DESCR("Networking"), 192 NULL, 0, NULL, 0, 193 CTL_NET, CTL_EOL); 194 sysctl_createv(clog, 0, NULL, NULL, 195 CTLFLAG_PERMANENT, 196 CTLTYPE_NODE, "debug", 197 SYSCTL_DESCR("Debugging"), 198 NULL, 0, NULL, 0, 199 CTL_DEBUG, CTL_EOL); 200 sysctl_createv(clog, 0, NULL, NULL, 201 CTLFLAG_PERMANENT, 202 CTLTYPE_NODE, "hw", 203 SYSCTL_DESCR("Generic CPU, I/O"), 204 NULL, 0, NULL, 0, 205 CTL_HW, CTL_EOL); 206 sysctl_createv(clog, 0, NULL, NULL, 207 CTLFLAG_PERMANENT, 208 CTLTYPE_NODE, "machdep", 209 SYSCTL_DESCR("Machine dependent"), 210 NULL, 0, NULL, 0, 211 CTL_MACHDEP, CTL_EOL); 212 /* 213 * this node is inserted so that the sysctl nodes in libc can 214 * operate. 215 */ 216 sysctl_createv(clog, 0, NULL, NULL, 217 CTLFLAG_PERMANENT, 218 CTLTYPE_NODE, "user", 219 SYSCTL_DESCR("User-level"), 220 NULL, 0, NULL, 0, 221 CTL_USER, CTL_EOL); 222 sysctl_createv(clog, 0, NULL, NULL, 223 CTLFLAG_PERMANENT, 224 CTLTYPE_NODE, "ddb", 225 SYSCTL_DESCR("In-kernel debugger"), 226 NULL, 0, NULL, 0, 227 CTL_DDB, CTL_EOL); 228 sysctl_createv(clog, 0, NULL, NULL, 229 CTLFLAG_PERMANENT, 230 CTLTYPE_NODE, "proc", 231 SYSCTL_DESCR("Per-process"), 232 NULL, 0, NULL, 0, 233 CTL_PROC, CTL_EOL); 234 sysctl_createv(clog, 0, NULL, NULL, 235 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 236 CTLTYPE_NODE, "vendor", 237 SYSCTL_DESCR("Vendor specific"), 238 NULL, 0, NULL, 0, 239 CTL_VENDOR, CTL_EOL); 240 sysctl_createv(clog, 0, NULL, NULL, 241 CTLFLAG_PERMANENT, 242 CTLTYPE_NODE, "emul", 243 SYSCTL_DESCR("Emulation settings"), 244 NULL, 0, NULL, 0, 245 CTL_EMUL, CTL_EOL); 246 } 247 248 /* 249 * this setup routine is a replacement for kern_sysctl() 250 */ 251 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 252 { 253 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 254 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 255 extern int dumponpanic; /* defined in kern/subr_prf.c */ 256 257 sysctl_createv(clog, 0, NULL, NULL, 258 CTLFLAG_PERMANENT, 259 CTLTYPE_NODE, "kern", NULL, 260 NULL, 0, NULL, 0, 261 CTL_KERN, CTL_EOL); 262 263 sysctl_createv(clog, 0, NULL, NULL, 264 CTLFLAG_PERMANENT, 265 CTLTYPE_STRING, "ostype", 266 SYSCTL_DESCR("Operating system type"), 267 NULL, 0, &ostype, 0, 268 CTL_KERN, KERN_OSTYPE, CTL_EOL); 269 sysctl_createv(clog, 0, NULL, NULL, 270 CTLFLAG_PERMANENT, 271 CTLTYPE_STRING, "osrelease", 272 SYSCTL_DESCR("Operating system release"), 273 NULL, 0, &osrelease, 0, 274 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 275 sysctl_createv(clog, 0, NULL, NULL, 276 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 277 CTLTYPE_INT, "osrevision", 278 SYSCTL_DESCR("Operating system revision"), 279 NULL, __NetBSD_Version__, NULL, 0, 280 CTL_KERN, KERN_OSREV, CTL_EOL); 281 sysctl_createv(clog, 0, NULL, NULL, 282 CTLFLAG_PERMANENT, 283 CTLTYPE_STRING, "version", 284 SYSCTL_DESCR("Kernel version"), 285 NULL, 0, &version, 0, 286 CTL_KERN, KERN_VERSION, CTL_EOL); 287 sysctl_createv(clog, 0, NULL, NULL, 288 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 289 CTLTYPE_INT, "maxvnodes", 290 SYSCTL_DESCR("Maximum number of vnodes"), 291 sysctl_kern_maxvnodes, 0, NULL, 0, 292 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 293 sysctl_createv(clog, 0, NULL, NULL, 294 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 295 CTLTYPE_INT, "maxproc", 296 SYSCTL_DESCR("Maximum number of simultaneous processes"), 297 sysctl_kern_maxproc, 0, NULL, 0, 298 CTL_KERN, KERN_MAXPROC, CTL_EOL); 299 sysctl_createv(clog, 0, NULL, NULL, 300 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 301 CTLTYPE_INT, "maxfiles", 302 SYSCTL_DESCR("Maximum number of open files"), 303 NULL, 0, &maxfiles, 0, 304 CTL_KERN, KERN_MAXFILES, CTL_EOL); 305 sysctl_createv(clog, 0, NULL, NULL, 306 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 307 CTLTYPE_INT, "argmax", 308 SYSCTL_DESCR("Maximum number of bytes of arguments to " 309 "execve(2)"), 310 NULL, ARG_MAX, NULL, 0, 311 CTL_KERN, KERN_ARGMAX, CTL_EOL); 312 sysctl_createv(clog, 0, NULL, NULL, 313 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 314 CTLTYPE_INT, "securelevel", 315 SYSCTL_DESCR("System security level"), 316 sysctl_kern_securelevel, 0, &securelevel, 0, 317 CTL_KERN, KERN_SECURELVL, CTL_EOL); 318 sysctl_createv(clog, 0, NULL, NULL, 319 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 320 CTLTYPE_STRING, "hostname", 321 SYSCTL_DESCR("System hostname"), 322 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 323 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 324 sysctl_createv(clog, 0, NULL, NULL, 325 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 326 CTLTYPE_INT, "hostid", 327 SYSCTL_DESCR("System host ID number"), 328 sysctl_kern_hostid, 0, NULL, 0, 329 CTL_KERN, KERN_HOSTID, CTL_EOL); 330 sysctl_createv(clog, 0, NULL, NULL, 331 CTLFLAG_PERMANENT, 332 CTLTYPE_STRUCT, "clockrate", 333 SYSCTL_DESCR("Kernel clock rates"), 334 sysctl_kern_clockrate, 0, NULL, 335 sizeof(struct clockinfo), 336 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 337 sysctl_createv(clog, 0, NULL, NULL, 338 CTLFLAG_PERMANENT, 339 CTLTYPE_STRUCT, "vnode", 340 SYSCTL_DESCR("System vnode table"), 341 sysctl_kern_vnode, 0, NULL, 0, 342 CTL_KERN, KERN_VNODE, CTL_EOL); 343 sysctl_createv(clog, 0, NULL, NULL, 344 CTLFLAG_PERMANENT, 345 CTLTYPE_STRUCT, "file", 346 SYSCTL_DESCR("System open file table"), 347 sysctl_kern_file, 0, NULL, 0, 348 CTL_KERN, KERN_FILE, CTL_EOL); 349 #ifndef GPROF 350 sysctl_createv(clog, 0, NULL, NULL, 351 CTLFLAG_PERMANENT, 352 CTLTYPE_NODE, "profiling", 353 SYSCTL_DESCR("Profiling information (not available)"), 354 sysctl_notavail, 0, NULL, 0, 355 CTL_KERN, KERN_PROF, CTL_EOL); 356 #endif 357 sysctl_createv(clog, 0, NULL, NULL, 358 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 359 CTLTYPE_INT, "posix1version", 360 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 361 "with which the operating system attempts " 362 "to comply"), 363 NULL, _POSIX_VERSION, NULL, 0, 364 CTL_KERN, KERN_POSIX1, CTL_EOL); 365 sysctl_createv(clog, 0, NULL, NULL, 366 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 367 CTLTYPE_INT, "ngroups", 368 SYSCTL_DESCR("Maximum number of supplemental groups"), 369 NULL, NGROUPS_MAX, NULL, 0, 370 CTL_KERN, KERN_NGROUPS, CTL_EOL); 371 sysctl_createv(clog, 0, NULL, NULL, 372 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 373 CTLTYPE_INT, "job_control", 374 SYSCTL_DESCR("Whether job control is available"), 375 NULL, 1, NULL, 0, 376 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 377 sysctl_createv(clog, 0, NULL, NULL, 378 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 379 CTLTYPE_INT, "saved_ids", 380 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 381 "available"), NULL, 382 #ifdef _POSIX_SAVED_IDS 383 1, 384 #else /* _POSIX_SAVED_IDS */ 385 0, 386 #endif /* _POSIX_SAVED_IDS */ 387 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 388 sysctl_createv(clog, 0, NULL, NULL, 389 CTLFLAG_PERMANENT, 390 CTLTYPE_STRUCT, "boottime", 391 SYSCTL_DESCR("System boot time"), 392 NULL, 0, &boottime, sizeof(boottime), 393 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 394 sysctl_createv(clog, 0, NULL, NULL, 395 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 396 CTLTYPE_STRING, "domainname", 397 SYSCTL_DESCR("YP domain name"), 398 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 399 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 400 sysctl_createv(clog, 0, NULL, NULL, 401 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 402 CTLTYPE_INT, "maxpartitions", 403 SYSCTL_DESCR("Maximum number of partitions allowed per " 404 "disk"), 405 NULL, MAXPARTITIONS, NULL, 0, 406 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 407 sysctl_createv(clog, 0, NULL, NULL, 408 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 409 CTLTYPE_INT, "rawpartition", 410 SYSCTL_DESCR("Raw partition of a disk"), 411 NULL, RAW_PART, NULL, 0, 412 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 413 sysctl_createv(clog, 0, NULL, NULL, 414 CTLFLAG_PERMANENT, 415 CTLTYPE_STRUCT, "timex", NULL, 416 sysctl_notavail, 0, NULL, 0, 417 CTL_KERN, KERN_TIMEX, CTL_EOL); 418 sysctl_createv(clog, 0, NULL, NULL, 419 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 420 CTLTYPE_INT, "autonicetime", 421 SYSCTL_DESCR("CPU clock seconds before non-root " 422 "process priority is lowered"), 423 sysctl_kern_autonice, 0, &autonicetime, 0, 424 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 425 sysctl_createv(clog, 0, NULL, NULL, 426 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 427 CTLTYPE_INT, "autoniceval", 428 SYSCTL_DESCR("Automatic reniced non-root process " 429 "priority"), 430 sysctl_kern_autonice, 0, &autoniceval, 0, 431 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 432 sysctl_createv(clog, 0, NULL, NULL, 433 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 434 CTLTYPE_INT, "rtc_offset", 435 SYSCTL_DESCR("Offset of real time clock from UTC in " 436 "minutes"), 437 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 438 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 439 sysctl_createv(clog, 0, NULL, NULL, 440 CTLFLAG_PERMANENT, 441 CTLTYPE_STRING, "root_device", 442 SYSCTL_DESCR("Name of the root device"), 443 sysctl_root_device, 0, NULL, 0, 444 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 445 sysctl_createv(clog, 0, NULL, NULL, 446 CTLFLAG_PERMANENT, 447 CTLTYPE_INT, "msgbufsize", 448 SYSCTL_DESCR("Size of the kernel message buffer"), 449 sysctl_msgbuf, 0, NULL, 0, 450 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 451 sysctl_createv(clog, 0, NULL, NULL, 452 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 453 CTLTYPE_INT, "fsync", 454 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 455 "Synchronization Option is available on " 456 "this system"), 457 NULL, 1, NULL, 0, 458 CTL_KERN, KERN_FSYNC, CTL_EOL); 459 sysctl_createv(clog, 0, NULL, NULL, 460 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 461 CTLTYPE_INT, "sysvmsg", 462 SYSCTL_DESCR("System V style message support available"), 463 NULL, 464 #ifdef SYSVMSG 465 1, 466 #else /* SYSVMSG */ 467 0, 468 #endif /* SYSVMSG */ 469 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 470 sysctl_createv(clog, 0, NULL, NULL, 471 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 472 CTLTYPE_INT, "sysvsem", 473 SYSCTL_DESCR("System V style semaphore support " 474 "available"), NULL, 475 #ifdef SYSVSEM 476 1, 477 #else /* SYSVSEM */ 478 0, 479 #endif /* SYSVSEM */ 480 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 481 sysctl_createv(clog, 0, NULL, NULL, 482 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 483 CTLTYPE_INT, "sysvshm", 484 SYSCTL_DESCR("System V style shared memory support " 485 "available"), NULL, 486 #ifdef SYSVSHM 487 1, 488 #else /* SYSVSHM */ 489 0, 490 #endif /* SYSVSHM */ 491 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 492 sysctl_createv(clog, 0, NULL, NULL, 493 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 494 CTLTYPE_INT, "synchronized_io", 495 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 496 "I/O Option is available on this system"), 497 NULL, 1, NULL, 0, 498 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 499 sysctl_createv(clog, 0, NULL, NULL, 500 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 501 CTLTYPE_INT, "iov_max", 502 SYSCTL_DESCR("Maximum number of iovec structures per " 503 "process"), 504 NULL, IOV_MAX, NULL, 0, 505 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 506 sysctl_createv(clog, 0, NULL, NULL, 507 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 508 CTLTYPE_INT, "mapped_files", 509 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 510 "Files Option is available on this system"), 511 NULL, 1, NULL, 0, 512 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 513 sysctl_createv(clog, 0, NULL, NULL, 514 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 515 CTLTYPE_INT, "memlock", 516 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 517 "Locking Option is available on this " 518 "system"), 519 NULL, 1, NULL, 0, 520 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 521 sysctl_createv(clog, 0, NULL, NULL, 522 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 523 CTLTYPE_INT, "memlock_range", 524 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 525 "Locking Option is available on this " 526 "system"), 527 NULL, 1, NULL, 0, 528 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 529 sysctl_createv(clog, 0, NULL, NULL, 530 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 531 CTLTYPE_INT, "memory_protection", 532 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 533 "Protection Option is available on this " 534 "system"), 535 NULL, 1, NULL, 0, 536 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 537 sysctl_createv(clog, 0, NULL, NULL, 538 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 539 CTLTYPE_INT, "login_name_max", 540 SYSCTL_DESCR("Maximum login name length"), 541 NULL, LOGIN_NAME_MAX, NULL, 0, 542 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 543 sysctl_createv(clog, 0, NULL, NULL, 544 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 545 CTLTYPE_STRING, "defcorename", 546 SYSCTL_DESCR("Default core file name"), 547 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 548 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 549 sysctl_createv(clog, 0, NULL, NULL, 550 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 551 CTLTYPE_INT, "logsigexit", 552 SYSCTL_DESCR("Log process exit when caused by signals"), 553 NULL, 0, &kern_logsigexit, 0, 554 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 555 sysctl_createv(clog, 0, NULL, NULL, 556 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 557 CTLTYPE_INT, "fscale", 558 SYSCTL_DESCR("Kernel fixed-point scale factor"), 559 NULL, FSCALE, NULL, 0, 560 CTL_KERN, KERN_FSCALE, CTL_EOL); 561 sysctl_createv(clog, 0, NULL, NULL, 562 CTLFLAG_PERMANENT, 563 CTLTYPE_INT, "ccpu", 564 SYSCTL_DESCR("Scheduler exponential decay value"), 565 NULL, 0, &ccpu, 0, 566 CTL_KERN, KERN_CCPU, CTL_EOL); 567 sysctl_createv(clog, 0, NULL, NULL, 568 CTLFLAG_PERMANENT, 569 CTLTYPE_STRUCT, "cp_time", 570 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 571 sysctl_kern_cptime, 0, NULL, 0, 572 CTL_KERN, KERN_CP_TIME, CTL_EOL); 573 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 574 sysctl_createv(clog, 0, NULL, NULL, 575 CTLFLAG_PERMANENT, 576 CTLTYPE_STRUCT, "sysvipc_info", 577 SYSCTL_DESCR("System V style IPC information"), 578 sysctl_kern_sysvipc, 0, NULL, 0, 579 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 580 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 581 sysctl_createv(clog, 0, NULL, NULL, 582 CTLFLAG_PERMANENT, 583 CTLTYPE_INT, "msgbuf", 584 SYSCTL_DESCR("Kernel message buffer"), 585 sysctl_msgbuf, 0, NULL, 0, 586 CTL_KERN, KERN_MSGBUF, CTL_EOL); 587 sysctl_createv(clog, 0, NULL, NULL, 588 CTLFLAG_PERMANENT, 589 CTLTYPE_STRUCT, "consdev", 590 SYSCTL_DESCR("Console device"), 591 sysctl_consdev, 0, NULL, sizeof(dev_t), 592 CTL_KERN, KERN_CONSDEV, CTL_EOL); 593 #if NPTY > 0 594 sysctl_createv(clog, 0, NULL, NULL, 595 CTLFLAG_PERMANENT, 596 CTLTYPE_INT, "maxptys", 597 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 598 sysctl_kern_maxptys, 0, NULL, 0, 599 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 600 #endif /* NPTY > 0 */ 601 sysctl_createv(clog, 0, NULL, NULL, 602 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 603 CTLTYPE_INT, "maxphys", 604 SYSCTL_DESCR("Maximum raw I/O transfer size"), 605 NULL, MAXPHYS, NULL, 0, 606 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 607 sysctl_createv(clog, 0, NULL, NULL, 608 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 609 CTLTYPE_INT, "sbmax", 610 SYSCTL_DESCR("Maximum socket buffer size"), 611 sysctl_kern_sbmax, 0, NULL, 0, 612 CTL_KERN, KERN_SBMAX, CTL_EOL); 613 sysctl_createv(clog, 0, NULL, NULL, 614 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 615 CTLTYPE_INT, "monotonic_clock", 616 SYSCTL_DESCR("Implementation version of the POSIX " 617 "1003.1b Monotonic Clock Option"), 618 /* XXX _POSIX_VERSION */ 619 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 620 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 621 sysctl_createv(clog, 0, NULL, NULL, 622 CTLFLAG_PERMANENT, 623 CTLTYPE_INT, "urandom", 624 SYSCTL_DESCR("Random integer value"), 625 sysctl_kern_urnd, 0, NULL, 0, 626 CTL_KERN, KERN_URND, CTL_EOL); 627 sysctl_createv(clog, 0, NULL, NULL, 628 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 629 CTLTYPE_INT, "labelsector", 630 SYSCTL_DESCR("Sector number containing the disklabel"), 631 NULL, LABELSECTOR, NULL, 0, 632 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 633 sysctl_createv(clog, 0, NULL, NULL, 634 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 635 CTLTYPE_INT, "labeloffset", 636 SYSCTL_DESCR("Offset of the disklabel within the " 637 "sector"), 638 NULL, LABELOFFSET, NULL, 0, 639 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 640 sysctl_createv(clog, 0, NULL, NULL, 641 CTLFLAG_PERMANENT, 642 CTLTYPE_NODE, "lwp", 643 SYSCTL_DESCR("System-wide LWP information"), 644 sysctl_kern_lwp, 0, NULL, 0, 645 CTL_KERN, KERN_LWP, CTL_EOL); 646 sysctl_createv(clog, 0, NULL, NULL, 647 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 648 CTLTYPE_INT, "forkfsleep", 649 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 650 "to process limits"), 651 sysctl_kern_forkfsleep, 0, NULL, 0, 652 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 653 sysctl_createv(clog, 0, NULL, NULL, 654 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 655 CTLTYPE_INT, "posix_threads", 656 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 657 "Threads option to which the system " 658 "attempts to conform"), 659 /* XXX _POSIX_VERSION */ 660 NULL, _POSIX_THREADS, NULL, 0, 661 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 662 sysctl_createv(clog, 0, NULL, NULL, 663 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 664 CTLTYPE_INT, "posix_semaphores", 665 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 666 "Semaphores option to which the system " 667 "attempts to conform"), NULL, 668 #ifdef P1003_1B_SEMAPHORE 669 200112, 670 #else /* P1003_1B_SEMAPHORE */ 671 0, 672 #endif /* P1003_1B_SEMAPHORE */ 673 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 674 sysctl_createv(clog, 0, NULL, NULL, 675 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 676 CTLTYPE_INT, "posix_barriers", 677 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 678 "Barriers option to which the system " 679 "attempts to conform"), 680 /* XXX _POSIX_VERSION */ 681 NULL, _POSIX_BARRIERS, NULL, 0, 682 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 683 sysctl_createv(clog, 0, NULL, NULL, 684 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 685 CTLTYPE_INT, "posix_timers", 686 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 687 "Timers option to which the system " 688 "attempts to conform"), 689 /* XXX _POSIX_VERSION */ 690 NULL, _POSIX_TIMERS, NULL, 0, 691 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 692 sysctl_createv(clog, 0, NULL, NULL, 693 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 694 CTLTYPE_INT, "posix_spin_locks", 695 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 696 "Locks option to which the system attempts " 697 "to conform"), 698 /* XXX _POSIX_VERSION */ 699 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 700 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 701 sysctl_createv(clog, 0, NULL, NULL, 702 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 703 CTLTYPE_INT, "posix_reader_writer_locks", 704 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 705 "Read-Write Locks option to which the " 706 "system attempts to conform"), 707 /* XXX _POSIX_VERSION */ 708 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 709 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 710 sysctl_createv(clog, 0, NULL, NULL, 711 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 712 CTLTYPE_INT, "dump_on_panic", 713 SYSCTL_DESCR("Perform a crash dump on system panic"), 714 NULL, 0, &dumponpanic, 0, 715 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 716 sysctl_createv(clog, 0, NULL, NULL, 717 CTLFLAG_PERMANENT, 718 CTLTYPE_INT, "root_partition", 719 SYSCTL_DESCR("Root partition on the root device"), 720 sysctl_kern_root_partition, 0, NULL, 0, 721 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 722 sysctl_createv(clog, 0, NULL, NULL, 723 CTLFLAG_PERMANENT, 724 CTLTYPE_STRUCT, "drivers", 725 SYSCTL_DESCR("List of all drivers with block and " 726 "character device numbers"), 727 sysctl_kern_drivers, 0, NULL, 0, 728 CTL_KERN, KERN_DRIVERS, CTL_EOL); 729 sysctl_createv(clog, 0, NULL, NULL, 730 CTLFLAG_PERMANENT, 731 CTLTYPE_STRUCT, "file2", 732 SYSCTL_DESCR("System open file table"), 733 sysctl_kern_file2, 0, NULL, 0, 734 CTL_KERN, KERN_FILE2, CTL_EOL); 735 #ifdef VERIFIED_EXEC 736 sysctl_createv(clog, 0, NULL, NULL, 737 CTLFLAG_PERMANENT, 738 CTLTYPE_NODE, "veriexec", 739 SYSCTL_DESCR("Verified Exec"), 740 NULL, 0, NULL, 0, 741 CTL_KERN, KERN_VERIEXEC, CTL_EOL); 742 sysctl_createv(clog, 0, NULL, NULL, 743 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 744 CTLTYPE_INT, "verbose", 745 SYSCTL_DESCR("Verified Exec verbose level"), 746 NULL, 0, &veriexec_verbose, 0, 747 CTL_KERN, KERN_VERIEXEC, VERIEXEC_VERBOSE, 748 CTL_EOL); 749 sysctl_createv(clog, 0, NULL, NULL, 750 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 751 CTLTYPE_INT, "strict", 752 SYSCTL_DESCR("Verified Exec strict level"), 753 sysctl_kern_veriexec, 0, NULL, 0, 754 CTL_KERN, KERN_VERIEXEC, VERIEXEC_STRICT, CTL_EOL); 755 sysctl_createv(clog, 0, NULL, NULL, 756 CTLFLAG_PERMANENT, 757 CTLTYPE_STRING, "algorithms", 758 SYSCTL_DESCR("Verified Exec supported hashing " 759 "algorithms"), 760 sysctl_kern_veriexec, 0, NULL, 0, 761 CTL_KERN, KERN_VERIEXEC, VERIEXEC_ALGORITHMS, CTL_EOL); 762 sysctl_createv(clog, 0, NULL, &veriexec_count_node, 763 CTLFLAG_PERMANENT, 764 CTLTYPE_NODE, "count", 765 SYSCTL_DESCR("Number of fingerprints on device(s)"), 766 NULL, 0, NULL, 0, 767 CTL_KERN, KERN_VERIEXEC, VERIEXEC_COUNT, CTL_EOL); 768 #endif /* VERIFIED_EXEC */ 769 } 770 771 SYSCTL_SETUP(sysctl_kern_proc_setup, 772 "sysctl kern.proc/proc2/proc_args subtree setup") 773 { 774 775 sysctl_createv(clog, 0, NULL, NULL, 776 CTLFLAG_PERMANENT, 777 CTLTYPE_NODE, "kern", NULL, 778 NULL, 0, NULL, 0, 779 CTL_KERN, CTL_EOL); 780 781 sysctl_createv(clog, 0, NULL, NULL, 782 CTLFLAG_PERMANENT, 783 CTLTYPE_NODE, "proc", 784 SYSCTL_DESCR("System-wide process information"), 785 sysctl_doeproc, 0, NULL, 0, 786 CTL_KERN, KERN_PROC, CTL_EOL); 787 sysctl_createv(clog, 0, NULL, NULL, 788 CTLFLAG_PERMANENT, 789 CTLTYPE_NODE, "proc2", 790 SYSCTL_DESCR("Machine-independent process information"), 791 sysctl_doeproc, 0, NULL, 0, 792 CTL_KERN, KERN_PROC2, CTL_EOL); 793 sysctl_createv(clog, 0, NULL, NULL, 794 CTLFLAG_PERMANENT, 795 CTLTYPE_NODE, "proc_args", 796 SYSCTL_DESCR("Process argument information"), 797 sysctl_kern_proc_args, 0, NULL, 0, 798 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 799 800 /* 801 "nodes" under these: 802 803 KERN_PROC_ALL 804 KERN_PROC_PID pid 805 KERN_PROC_PGRP pgrp 806 KERN_PROC_SESSION sess 807 KERN_PROC_TTY tty 808 KERN_PROC_UID uid 809 KERN_PROC_RUID uid 810 KERN_PROC_GID gid 811 KERN_PROC_RGID gid 812 813 all in all, probably not worth the effort... 814 */ 815 } 816 817 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 818 { 819 u_int u; 820 u_quad_t q; 821 822 sysctl_createv(clog, 0, NULL, NULL, 823 CTLFLAG_PERMANENT, 824 CTLTYPE_NODE, "hw", NULL, 825 NULL, 0, NULL, 0, 826 CTL_HW, CTL_EOL); 827 828 sysctl_createv(clog, 0, NULL, NULL, 829 CTLFLAG_PERMANENT, 830 CTLTYPE_STRING, "machine", 831 SYSCTL_DESCR("Machine class"), 832 NULL, 0, machine, 0, 833 CTL_HW, HW_MACHINE, CTL_EOL); 834 sysctl_createv(clog, 0, NULL, NULL, 835 CTLFLAG_PERMANENT, 836 CTLTYPE_STRING, "model", 837 SYSCTL_DESCR("Machine model"), 838 NULL, 0, cpu_model, 0, 839 CTL_HW, HW_MODEL, CTL_EOL); 840 sysctl_createv(clog, 0, NULL, NULL, 841 CTLFLAG_PERMANENT, 842 CTLTYPE_INT, "ncpu", 843 SYSCTL_DESCR("Number of active CPUs"), 844 sysctl_hw_ncpu, 0, NULL, 0, 845 CTL_HW, HW_NCPU, CTL_EOL); 846 sysctl_createv(clog, 0, NULL, NULL, 847 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 848 CTLTYPE_INT, "byteorder", 849 SYSCTL_DESCR("System byte order"), 850 NULL, BYTE_ORDER, NULL, 0, 851 CTL_HW, HW_BYTEORDER, CTL_EOL); 852 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 853 UINT_MAX : physmem * PAGE_SIZE; 854 sysctl_createv(clog, 0, NULL, NULL, 855 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 856 CTLTYPE_INT, "physmem", 857 SYSCTL_DESCR("Bytes of physical memory"), 858 NULL, u, NULL, 0, 859 CTL_HW, HW_PHYSMEM, CTL_EOL); 860 sysctl_createv(clog, 0, NULL, NULL, 861 CTLFLAG_PERMANENT, 862 CTLTYPE_INT, "usermem", 863 SYSCTL_DESCR("Bytes of non-kernel memory"), 864 sysctl_hw_usermem, 0, NULL, 0, 865 CTL_HW, HW_USERMEM, CTL_EOL); 866 sysctl_createv(clog, 0, NULL, NULL, 867 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 868 CTLTYPE_INT, "pagesize", 869 SYSCTL_DESCR("Software page size"), 870 NULL, PAGE_SIZE, NULL, 0, 871 CTL_HW, HW_PAGESIZE, CTL_EOL); 872 sysctl_createv(clog, 0, NULL, NULL, 873 CTLFLAG_PERMANENT, 874 CTLTYPE_STRING, "disknames", 875 SYSCTL_DESCR("List of disk devices present"), 876 sysctl_hw_disknames, 0, NULL, 0, 877 CTL_HW, HW_DISKNAMES, CTL_EOL); 878 sysctl_createv(clog, 0, NULL, NULL, 879 CTLFLAG_PERMANENT, 880 CTLTYPE_STRUCT, "diskstats", 881 SYSCTL_DESCR("Statistics on disk operation"), 882 sysctl_hw_diskstats, 0, NULL, 0, 883 CTL_HW, HW_DISKSTATS, CTL_EOL); 884 sysctl_createv(clog, 0, NULL, NULL, 885 CTLFLAG_PERMANENT, 886 CTLTYPE_STRING, "machine_arch", 887 SYSCTL_DESCR("Machine CPU class"), 888 NULL, 0, machine_arch, 0, 889 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 890 sysctl_createv(clog, 0, NULL, NULL, 891 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 892 CTLTYPE_INT, "alignbytes", 893 SYSCTL_DESCR("Alignment constraint for all possible " 894 "data types"), 895 NULL, ALIGNBYTES, NULL, 0, 896 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 897 sysctl_createv(clog, 0, NULL, NULL, 898 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 899 CTLTYPE_STRING, "cnmagic", 900 SYSCTL_DESCR("Console magic key sequence"), 901 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 902 CTL_HW, HW_CNMAGIC, CTL_EOL); 903 q = (u_quad_t)physmem * PAGE_SIZE; 904 sysctl_createv(clog, 0, NULL, NULL, 905 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 906 CTLTYPE_QUAD, "physmem64", 907 SYSCTL_DESCR("Bytes of physical memory"), 908 NULL, q, NULL, 0, 909 CTL_HW, HW_PHYSMEM64, CTL_EOL); 910 sysctl_createv(clog, 0, NULL, NULL, 911 CTLFLAG_PERMANENT, 912 CTLTYPE_QUAD, "usermem64", 913 SYSCTL_DESCR("Bytes of non-kernel memory"), 914 sysctl_hw_usermem, 0, NULL, 0, 915 CTL_HW, HW_USERMEM64, CTL_EOL); 916 } 917 918 #ifdef DEBUG 919 /* 920 * Debugging related system variables. 921 */ 922 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 923 struct ctldebug debug5, debug6, debug7, debug8, debug9; 924 struct ctldebug debug10, debug11, debug12, debug13, debug14; 925 struct ctldebug debug15, debug16, debug17, debug18, debug19; 926 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 927 &debug0, &debug1, &debug2, &debug3, &debug4, 928 &debug5, &debug6, &debug7, &debug8, &debug9, 929 &debug10, &debug11, &debug12, &debug13, &debug14, 930 &debug15, &debug16, &debug17, &debug18, &debug19, 931 }; 932 933 /* 934 * this setup routine is a replacement for debug_sysctl() 935 * 936 * note that it creates several nodes per defined debug variable 937 */ 938 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 939 { 940 struct ctldebug *cdp; 941 char nodename[20]; 942 int i; 943 944 /* 945 * two ways here: 946 * 947 * the "old" way (debug.name -> value) which was emulated by 948 * the sysctl(8) binary 949 * 950 * the new way, which the sysctl(8) binary was actually using 951 952 node debug 953 node debug.0 954 string debug.0.name 955 int debug.0.value 956 int debug.name 957 958 */ 959 960 sysctl_createv(clog, 0, NULL, NULL, 961 CTLFLAG_PERMANENT, 962 CTLTYPE_NODE, "debug", NULL, 963 NULL, 0, NULL, 0, 964 CTL_DEBUG, CTL_EOL); 965 966 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 967 cdp = debugvars[i]; 968 if (cdp->debugname == NULL || cdp->debugvar == NULL) 969 continue; 970 971 snprintf(nodename, sizeof(nodename), "debug%d", i); 972 sysctl_createv(clog, 0, NULL, NULL, 973 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 974 CTLTYPE_NODE, nodename, NULL, 975 NULL, 0, NULL, 0, 976 CTL_DEBUG, i, CTL_EOL); 977 sysctl_createv(clog, 0, NULL, NULL, 978 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 979 CTLTYPE_STRING, "name", NULL, 980 NULL, 0, cdp->debugname, 0, 981 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 982 sysctl_createv(clog, 0, NULL, NULL, 983 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 984 CTLTYPE_INT, "value", NULL, 985 NULL, 0, cdp->debugvar, 0, 986 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 987 sysctl_createv(clog, 0, NULL, NULL, 988 CTLFLAG_PERMANENT, 989 CTLTYPE_INT, cdp->debugname, NULL, 990 NULL, 0, cdp->debugvar, 0, 991 CTL_DEBUG, CTL_CREATE, CTL_EOL); 992 } 993 } 994 #endif /* DEBUG */ 995 996 /* 997 * ******************************************************************** 998 * section 2: private node-specific helper routines. 999 * ******************************************************************** 1000 */ 1001 1002 /* 1003 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1004 * new value is lower than desiredvnodes and then calls reinit 1005 * routines that needs to adjust to the new value. 1006 */ 1007 static int 1008 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1009 { 1010 int error, new_vnodes, old_vnodes; 1011 struct sysctlnode node; 1012 1013 new_vnodes = desiredvnodes; 1014 node = *rnode; 1015 node.sysctl_data = &new_vnodes; 1016 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1017 if (error || newp == NULL) 1018 return (error); 1019 1020 old_vnodes = desiredvnodes; 1021 desiredvnodes = new_vnodes; 1022 if (new_vnodes < old_vnodes) { 1023 error = vfs_drainvnodes(new_vnodes, l->l_proc); 1024 if (error) { 1025 desiredvnodes = old_vnodes; 1026 return (error); 1027 } 1028 } 1029 vfs_reinit(); 1030 nchreinit(); 1031 1032 return (0); 1033 } 1034 1035 /* 1036 * sysctl helper routine for rtc_offset - set time after changes 1037 */ 1038 static int 1039 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1040 { 1041 struct timeval tv, delta; 1042 int s, error, new_rtc_offset; 1043 struct sysctlnode node; 1044 1045 new_rtc_offset = rtc_offset; 1046 node = *rnode; 1047 node.sysctl_data = &new_rtc_offset; 1048 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1049 if (error || newp == NULL) 1050 return (error); 1051 1052 if (securelevel > 0) 1053 return (EPERM); 1054 if (rtc_offset == new_rtc_offset) 1055 return (0); 1056 1057 /* if we change the offset, adjust the time */ 1058 s = splclock(); 1059 tv = time; 1060 splx(s); 1061 delta.tv_sec = 60*(new_rtc_offset - rtc_offset); 1062 delta.tv_usec = 0; 1063 timeradd(&tv, &delta, &tv); 1064 rtc_offset = new_rtc_offset; 1065 settime(&tv); 1066 1067 return (0); 1068 } 1069 1070 /* 1071 * sysctl helper routine for kern.maxvnodes. ensures that the new 1072 * values are not too low or too high. 1073 */ 1074 static int 1075 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1076 { 1077 int error, nmaxproc; 1078 struct sysctlnode node; 1079 1080 nmaxproc = maxproc; 1081 node = *rnode; 1082 node.sysctl_data = &nmaxproc; 1083 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1084 if (error || newp == NULL) 1085 return (error); 1086 1087 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1088 return (EINVAL); 1089 #ifdef __HAVE_CPU_MAXPROC 1090 if (nmaxproc > cpu_maxproc()) 1091 return (EINVAL); 1092 #endif 1093 maxproc = nmaxproc; 1094 1095 return (0); 1096 } 1097 1098 /* 1099 * sysctl helper routine for kern.securelevel. ensures that the value 1100 * only rises unless the caller has pid 1 (assumed to be init). 1101 */ 1102 static int 1103 sysctl_kern_securelevel(SYSCTLFN_ARGS) 1104 { 1105 int newsecurelevel, error; 1106 struct sysctlnode node; 1107 1108 newsecurelevel = securelevel; 1109 node = *rnode; 1110 node.sysctl_data = &newsecurelevel; 1111 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1112 if (error || newp == NULL) 1113 return (error); 1114 1115 if (newsecurelevel < securelevel && l && l->l_proc->p_pid != 1) 1116 return (EPERM); 1117 securelevel = newsecurelevel; 1118 1119 return (error); 1120 } 1121 1122 /* 1123 * sysctl helper function for kern.hostid. the hostid is a long, but 1124 * we export it as an int, so we need to give it a little help. 1125 */ 1126 static int 1127 sysctl_kern_hostid(SYSCTLFN_ARGS) 1128 { 1129 int error, inthostid; 1130 struct sysctlnode node; 1131 1132 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1133 node = *rnode; 1134 node.sysctl_data = &inthostid; 1135 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1136 if (error || newp == NULL) 1137 return (error); 1138 1139 hostid = (unsigned)inthostid; 1140 1141 return (0); 1142 } 1143 1144 /* 1145 * sysctl helper function for kern.hostname and kern.domainnname. 1146 * resets the relevant recorded length when the underlying name is 1147 * changed. 1148 */ 1149 static int 1150 sysctl_setlen(SYSCTLFN_ARGS) 1151 { 1152 int error; 1153 1154 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1155 if (error || newp == NULL) 1156 return (error); 1157 1158 switch (rnode->sysctl_num) { 1159 case KERN_HOSTNAME: 1160 hostnamelen = strlen((const char*)rnode->sysctl_data); 1161 break; 1162 case KERN_DOMAINNAME: 1163 domainnamelen = strlen((const char*)rnode->sysctl_data); 1164 break; 1165 } 1166 1167 return (0); 1168 } 1169 1170 /* 1171 * sysctl helper routine for kern.clockrate. assembles a struct on 1172 * the fly to be returned to the caller. 1173 */ 1174 static int 1175 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1176 { 1177 struct clockinfo clkinfo; 1178 struct sysctlnode node; 1179 1180 clkinfo.tick = tick; 1181 clkinfo.tickadj = tickadj; 1182 clkinfo.hz = hz; 1183 clkinfo.profhz = profhz; 1184 clkinfo.stathz = stathz ? stathz : hz; 1185 1186 node = *rnode; 1187 node.sysctl_data = &clkinfo; 1188 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1189 } 1190 1191 1192 /* 1193 * sysctl helper routine for kern.file pseudo-subtree. 1194 */ 1195 static int 1196 sysctl_kern_file(SYSCTLFN_ARGS) 1197 { 1198 int error; 1199 size_t buflen; 1200 struct file *fp; 1201 char *start, *where; 1202 1203 start = where = oldp; 1204 buflen = *oldlenp; 1205 if (where == NULL) { 1206 /* 1207 * overestimate by 10 files 1208 */ 1209 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1210 return (0); 1211 } 1212 1213 /* 1214 * first copyout filehead 1215 */ 1216 if (buflen < sizeof(filehead)) { 1217 *oldlenp = 0; 1218 return (0); 1219 } 1220 error = copyout(&filehead, where, sizeof(filehead)); 1221 if (error) 1222 return (error); 1223 buflen -= sizeof(filehead); 1224 where += sizeof(filehead); 1225 1226 /* 1227 * followed by an array of file structures 1228 */ 1229 LIST_FOREACH(fp, &filehead, f_list) { 1230 if (buflen < sizeof(struct file)) { 1231 *oldlenp = where - start; 1232 return (ENOMEM); 1233 } 1234 error = copyout(fp, where, sizeof(struct file)); 1235 if (error) 1236 return (error); 1237 buflen -= sizeof(struct file); 1238 where += sizeof(struct file); 1239 } 1240 *oldlenp = where - start; 1241 return (0); 1242 } 1243 1244 /* 1245 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1246 * asserts that the assigned value is in the correct range. 1247 */ 1248 static int 1249 sysctl_kern_autonice(SYSCTLFN_ARGS) 1250 { 1251 int error, t = 0; 1252 struct sysctlnode node; 1253 1254 node = *rnode; 1255 t = *(int*)node.sysctl_data; 1256 node.sysctl_data = &t; 1257 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1258 if (error || newp == NULL) 1259 return (error); 1260 1261 switch (node.sysctl_num) { 1262 case KERN_AUTONICETIME: 1263 if (t >= 0) 1264 autonicetime = t; 1265 break; 1266 case KERN_AUTONICEVAL: 1267 if (t < PRIO_MIN) 1268 t = PRIO_MIN; 1269 else if (t > PRIO_MAX) 1270 t = PRIO_MAX; 1271 autoniceval = t; 1272 break; 1273 } 1274 1275 return (0); 1276 } 1277 1278 /* 1279 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1280 * former it merely checks the message buffer is set up. for the latter, 1281 * it also copies out the data if necessary. 1282 */ 1283 static int 1284 sysctl_msgbuf(SYSCTLFN_ARGS) 1285 { 1286 char *where = oldp; 1287 size_t len, maxlen; 1288 long beg, end; 1289 int error; 1290 1291 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1292 msgbufenabled = 0; 1293 return (ENXIO); 1294 } 1295 1296 switch (rnode->sysctl_num) { 1297 case KERN_MSGBUFSIZE: { 1298 struct sysctlnode node = *rnode; 1299 int msg_bufs = (int)msgbufp->msg_bufs; 1300 node.sysctl_data = &msg_bufs; 1301 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1302 } 1303 case KERN_MSGBUF: 1304 break; 1305 default: 1306 return (EOPNOTSUPP); 1307 } 1308 1309 if (newp != NULL) 1310 return (EPERM); 1311 1312 if (oldp == NULL) { 1313 /* always return full buffer size */ 1314 *oldlenp = msgbufp->msg_bufs; 1315 return (0); 1316 } 1317 1318 error = 0; 1319 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1320 1321 /* 1322 * First, copy from the write pointer to the end of 1323 * message buffer. 1324 */ 1325 beg = msgbufp->msg_bufx; 1326 end = msgbufp->msg_bufs; 1327 while (maxlen > 0) { 1328 len = MIN(end - beg, maxlen); 1329 if (len == 0) 1330 break; 1331 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1332 if (error) 1333 break; 1334 where += len; 1335 maxlen -= len; 1336 1337 /* 1338 * ... then, copy from the beginning of message buffer to 1339 * the write pointer. 1340 */ 1341 beg = 0; 1342 end = msgbufp->msg_bufx; 1343 } 1344 1345 return (error); 1346 } 1347 1348 /* 1349 * sysctl helper routine for kern.defcorename. in the case of a new 1350 * string being assigned, check that it's not a zero-length string. 1351 * (XXX the check in -current doesn't work, but do we really care?) 1352 */ 1353 static int 1354 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1355 { 1356 int error; 1357 char newcorename[MAXPATHLEN]; 1358 struct sysctlnode node; 1359 1360 node = *rnode; 1361 node.sysctl_data = &newcorename[0]; 1362 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1363 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1364 if (error || newp == NULL) 1365 return (error); 1366 1367 /* 1368 * when sysctl_lookup() deals with a string, it's guaranteed 1369 * to come back nul terminated. so there. :) 1370 */ 1371 if (strlen(newcorename) == 0) 1372 return (EINVAL); 1373 1374 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1375 1376 return (0); 1377 } 1378 1379 /* 1380 * sysctl helper routine for kern.cp_time node. adds up cpu time 1381 * across all cpus. 1382 */ 1383 static int 1384 sysctl_kern_cptime(SYSCTLFN_ARGS) 1385 { 1386 struct sysctlnode node = *rnode; 1387 1388 #ifndef MULTIPROCESSOR 1389 1390 if (namelen == 1) { 1391 if (name[0] != 0) 1392 return (ENOENT); 1393 /* 1394 * you're allowed to ask for the zero'th processor 1395 */ 1396 name++; 1397 namelen--; 1398 } 1399 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1400 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1401 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1402 1403 #else /* MULTIPROCESSOR */ 1404 1405 u_int64_t *cp_time = NULL; 1406 int error, n = sysctl_ncpus(), i; 1407 struct cpu_info *ci; 1408 CPU_INFO_ITERATOR cii; 1409 1410 /* 1411 * if you specifically pass a buffer that is the size of the 1412 * sum, or if you are probing for the size, you get the "sum" 1413 * of cp_time (and the size thereof) across all processors. 1414 * 1415 * alternately, you can pass an additional mib number and get 1416 * cp_time for that particular processor. 1417 */ 1418 switch (namelen) { 1419 case 0: 1420 if (*oldlenp == sizeof(u_int64_t) * CPUSTATES || oldp == NULL) { 1421 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1422 n = -1; /* SUM */ 1423 } 1424 else { 1425 node.sysctl_size = n * sizeof(u_int64_t) * CPUSTATES; 1426 n = -2; /* ALL */ 1427 } 1428 break; 1429 case 1: 1430 if (name[0] < 0 || name[0] >= n) 1431 return (ENOENT); /* ENOSUCHPROCESSOR */ 1432 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1433 n = name[0]; 1434 /* 1435 * adjust these so that sysctl_lookup() will be happy 1436 */ 1437 name++; 1438 namelen--; 1439 break; 1440 default: 1441 return (EINVAL); 1442 } 1443 1444 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1445 if (cp_time == NULL) 1446 return (ENOMEM); 1447 node.sysctl_data = cp_time; 1448 memset(cp_time, 0, node.sysctl_size); 1449 1450 for (CPU_INFO_FOREACH(cii, ci)) { 1451 if (n <= 0) 1452 for (i = 0; i < CPUSTATES; i++) 1453 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1454 /* 1455 * if a specific processor was requested and we just 1456 * did it, we're done here 1457 */ 1458 if (n == 0) 1459 break; 1460 /* 1461 * if doing "all", skip to next cp_time set for next processor 1462 */ 1463 if (n == -2) 1464 cp_time += CPUSTATES; 1465 /* 1466 * if we're doing a specific processor, we're one 1467 * processor closer 1468 */ 1469 if (n > 0) 1470 n--; 1471 } 1472 1473 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1474 free(node.sysctl_data, M_TEMP); 1475 return (error); 1476 1477 #endif /* MULTIPROCESSOR */ 1478 } 1479 1480 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1481 /* 1482 * sysctl helper routine for kern.sysvipc_info subtree. 1483 */ 1484 1485 #define FILL_PERM(src, dst) do { \ 1486 (dst)._key = (src)._key; \ 1487 (dst).uid = (src).uid; \ 1488 (dst).gid = (src).gid; \ 1489 (dst).cuid = (src).cuid; \ 1490 (dst).cgid = (src).cgid; \ 1491 (dst).mode = (src).mode; \ 1492 (dst)._seq = (src)._seq; \ 1493 } while (/*CONSTCOND*/ 0); 1494 #define FILL_MSG(src, dst) do { \ 1495 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1496 (dst).msg_qnum = (src).msg_qnum; \ 1497 (dst).msg_qbytes = (src).msg_qbytes; \ 1498 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1499 (dst).msg_lspid = (src).msg_lspid; \ 1500 (dst).msg_lrpid = (src).msg_lrpid; \ 1501 (dst).msg_stime = (src).msg_stime; \ 1502 (dst).msg_rtime = (src).msg_rtime; \ 1503 (dst).msg_ctime = (src).msg_ctime; \ 1504 } while (/*CONSTCOND*/ 0) 1505 #define FILL_SEM(src, dst) do { \ 1506 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1507 (dst).sem_nsems = (src).sem_nsems; \ 1508 (dst).sem_otime = (src).sem_otime; \ 1509 (dst).sem_ctime = (src).sem_ctime; \ 1510 } while (/*CONSTCOND*/ 0) 1511 #define FILL_SHM(src, dst) do { \ 1512 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1513 (dst).shm_segsz = (src).shm_segsz; \ 1514 (dst).shm_lpid = (src).shm_lpid; \ 1515 (dst).shm_cpid = (src).shm_cpid; \ 1516 (dst).shm_atime = (src).shm_atime; \ 1517 (dst).shm_dtime = (src).shm_dtime; \ 1518 (dst).shm_ctime = (src).shm_ctime; \ 1519 (dst).shm_nattch = (src).shm_nattch; \ 1520 } while (/*CONSTCOND*/ 0) 1521 1522 static int 1523 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1524 { 1525 void *where = oldp; 1526 size_t *sizep = oldlenp; 1527 #ifdef SYSVMSG 1528 struct msg_sysctl_info *msgsi = NULL; 1529 #endif 1530 #ifdef SYSVSEM 1531 struct sem_sysctl_info *semsi = NULL; 1532 #endif 1533 #ifdef SYSVSHM 1534 struct shm_sysctl_info *shmsi = NULL; 1535 #endif 1536 size_t infosize, dssize, tsize, buflen; 1537 void *buf = NULL; 1538 char *start; 1539 int32_t nds; 1540 int i, error, ret; 1541 1542 if (namelen != 1) 1543 return (EINVAL); 1544 1545 start = where; 1546 buflen = *sizep; 1547 1548 switch (*name) { 1549 case KERN_SYSVIPC_MSG_INFO: 1550 #ifdef SYSVMSG 1551 infosize = sizeof(msgsi->msginfo); 1552 nds = msginfo.msgmni; 1553 dssize = sizeof(msgsi->msgids[0]); 1554 break; 1555 #else 1556 return (EINVAL); 1557 #endif 1558 case KERN_SYSVIPC_SEM_INFO: 1559 #ifdef SYSVSEM 1560 infosize = sizeof(semsi->seminfo); 1561 nds = seminfo.semmni; 1562 dssize = sizeof(semsi->semids[0]); 1563 break; 1564 #else 1565 return (EINVAL); 1566 #endif 1567 case KERN_SYSVIPC_SHM_INFO: 1568 #ifdef SYSVSHM 1569 infosize = sizeof(shmsi->shminfo); 1570 nds = shminfo.shmmni; 1571 dssize = sizeof(shmsi->shmids[0]); 1572 break; 1573 #else 1574 return (EINVAL); 1575 #endif 1576 default: 1577 return (EINVAL); 1578 } 1579 /* 1580 * Round infosize to 64 bit boundary if requesting more than just 1581 * the info structure or getting the total data size. 1582 */ 1583 if (where == NULL || *sizep > infosize) 1584 infosize = ((infosize + 7) / 8) * 8; 1585 tsize = infosize + nds * dssize; 1586 1587 /* Return just the total size required. */ 1588 if (where == NULL) { 1589 *sizep = tsize; 1590 return (0); 1591 } 1592 1593 /* Not enough room for even the info struct. */ 1594 if (buflen < infosize) { 1595 *sizep = 0; 1596 return (ENOMEM); 1597 } 1598 buf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1599 memset(buf, 0, min(tsize, buflen)); 1600 1601 switch (*name) { 1602 #ifdef SYSVMSG 1603 case KERN_SYSVIPC_MSG_INFO: 1604 msgsi = (struct msg_sysctl_info *)buf; 1605 msgsi->msginfo = msginfo; 1606 break; 1607 #endif 1608 #ifdef SYSVSEM 1609 case KERN_SYSVIPC_SEM_INFO: 1610 semsi = (struct sem_sysctl_info *)buf; 1611 semsi->seminfo = seminfo; 1612 break; 1613 #endif 1614 #ifdef SYSVSHM 1615 case KERN_SYSVIPC_SHM_INFO: 1616 shmsi = (struct shm_sysctl_info *)buf; 1617 shmsi->shminfo = shminfo; 1618 break; 1619 #endif 1620 } 1621 buflen -= infosize; 1622 1623 ret = 0; 1624 if (buflen > 0) { 1625 /* Fill in the IPC data structures. */ 1626 for (i = 0; i < nds; i++) { 1627 if (buflen < dssize) { 1628 ret = ENOMEM; 1629 break; 1630 } 1631 switch (*name) { 1632 #ifdef SYSVMSG 1633 case KERN_SYSVIPC_MSG_INFO: 1634 FILL_MSG(msqids[i], msgsi->msgids[i]); 1635 break; 1636 #endif 1637 #ifdef SYSVSEM 1638 case KERN_SYSVIPC_SEM_INFO: 1639 FILL_SEM(sema[i], semsi->semids[i]); 1640 break; 1641 #endif 1642 #ifdef SYSVSHM 1643 case KERN_SYSVIPC_SHM_INFO: 1644 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1645 break; 1646 #endif 1647 } 1648 buflen -= dssize; 1649 } 1650 } 1651 *sizep -= buflen; 1652 error = copyout(buf, start, *sizep); 1653 /* If copyout succeeded, use return code set earlier. */ 1654 if (error == 0) 1655 error = ret; 1656 if (buf) 1657 free(buf, M_TEMP); 1658 return (error); 1659 } 1660 1661 #undef FILL_PERM 1662 #undef FILL_MSG 1663 #undef FILL_SEM 1664 #undef FILL_SHM 1665 1666 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1667 1668 #if NPTY > 0 1669 /* 1670 * sysctl helper routine for kern.maxptys. ensures that any new value 1671 * is acceptable to the pty subsystem. 1672 */ 1673 static int 1674 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1675 { 1676 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1677 int error, max; 1678 struct sysctlnode node; 1679 1680 /* get current value of maxptys */ 1681 max = pty_maxptys(0, 0); 1682 1683 node = *rnode; 1684 node.sysctl_data = &max; 1685 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1686 if (error || newp == NULL) 1687 return (error); 1688 1689 if (max != pty_maxptys(max, 1)) 1690 return (EINVAL); 1691 1692 return (0); 1693 } 1694 #endif /* NPTY > 0 */ 1695 1696 /* 1697 * sysctl helper routine for kern.sbmax. basically just ensures that 1698 * any new value is not too small. 1699 */ 1700 static int 1701 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1702 { 1703 int error, new_sbmax; 1704 struct sysctlnode node; 1705 1706 new_sbmax = sb_max; 1707 node = *rnode; 1708 node.sysctl_data = &new_sbmax; 1709 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1710 if (error || newp == NULL) 1711 return (error); 1712 1713 error = sb_max_set(new_sbmax); 1714 1715 return (error); 1716 } 1717 1718 /* 1719 * sysctl helper routine for kern.urandom node. picks a random number 1720 * for you. 1721 */ 1722 static int 1723 sysctl_kern_urnd(SYSCTLFN_ARGS) 1724 { 1725 #if NRND > 0 1726 int v; 1727 1728 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1729 struct sysctlnode node = *rnode; 1730 node.sysctl_data = &v; 1731 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1732 } 1733 else 1734 return (EIO); /*XXX*/ 1735 #else 1736 return (EOPNOTSUPP); 1737 #endif 1738 } 1739 1740 /* 1741 * sysctl helper routine to do kern.lwp.* work. 1742 */ 1743 static int 1744 sysctl_kern_lwp(SYSCTLFN_ARGS) 1745 { 1746 struct kinfo_lwp klwp; 1747 struct proc *p; 1748 struct lwp *l2; 1749 char *where, *dp; 1750 int pid, elem_size, elem_count; 1751 int buflen, needed, error; 1752 1753 if (namelen == 1 && name[0] == CTL_QUERY) 1754 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1755 1756 dp = where = oldp; 1757 buflen = where != NULL ? *oldlenp : 0; 1758 error = needed = 0; 1759 1760 if (newp != NULL || namelen != 3) 1761 return (EINVAL); 1762 pid = name[0]; 1763 elem_size = name[1]; 1764 elem_count = name[2]; 1765 1766 p = pfind(pid); 1767 if (p == NULL) 1768 return (ESRCH); 1769 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1770 if (buflen >= elem_size && elem_count > 0) { 1771 fill_lwp(l2, &klwp); 1772 /* 1773 * Copy out elem_size, but not larger than 1774 * the size of a struct kinfo_proc2. 1775 */ 1776 error = copyout(&klwp, dp, 1777 min(sizeof(klwp), elem_size)); 1778 if (error) 1779 goto cleanup; 1780 dp += elem_size; 1781 buflen -= elem_size; 1782 elem_count--; 1783 } 1784 needed += elem_size; 1785 } 1786 1787 if (where != NULL) { 1788 *oldlenp = dp - where; 1789 if (needed > *oldlenp) 1790 return (ENOMEM); 1791 } else { 1792 needed += KERN_LWPSLOP; 1793 *oldlenp = needed; 1794 } 1795 return (0); 1796 cleanup: 1797 return (error); 1798 } 1799 1800 /* 1801 * sysctl helper routine for kern.forkfsleep node. ensures that the 1802 * given value is not too large or two small, and is at least one 1803 * timer tick if not zero. 1804 */ 1805 static int 1806 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1807 { 1808 /* userland sees value in ms, internally is in ticks */ 1809 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1810 int error, timo, lsleep; 1811 struct sysctlnode node; 1812 1813 lsleep = forkfsleep * 1000 / hz; 1814 node = *rnode; 1815 node.sysctl_data = &lsleep; 1816 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1817 if (error || newp == NULL) 1818 return (error); 1819 1820 /* refuse negative values, and overly 'long time' */ 1821 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1822 return (EINVAL); 1823 1824 timo = mstohz(lsleep); 1825 1826 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1827 if (lsleep != 0 && timo == 0) 1828 forkfsleep = 1; 1829 else 1830 forkfsleep = timo; 1831 1832 return (0); 1833 } 1834 1835 /* 1836 * sysctl helper routine for kern.root_partition 1837 */ 1838 static int 1839 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1840 { 1841 int rootpart = DISKPART(rootdev); 1842 struct sysctlnode node = *rnode; 1843 1844 node.sysctl_data = &rootpart; 1845 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1846 } 1847 1848 /* 1849 * sysctl helper function for kern.drivers 1850 */ 1851 static int 1852 sysctl_kern_drivers(SYSCTLFN_ARGS) 1853 { 1854 int error; 1855 size_t buflen; 1856 struct kinfo_drivers kd; 1857 char *start, *where; 1858 const char *dname; 1859 int i; 1860 extern struct devsw_conv *devsw_conv; 1861 extern int max_devsw_convs; 1862 1863 if (newp != NULL || namelen != 0) 1864 return (EINVAL); 1865 1866 start = where = oldp; 1867 buflen = *oldlenp; 1868 if (where == NULL) { 1869 *oldlenp = max_devsw_convs * sizeof kd; 1870 return 0; 1871 } 1872 1873 /* 1874 * An array of kinfo_drivers structures 1875 */ 1876 error = 0; 1877 for (i = 0; i < max_devsw_convs; i++) { 1878 dname = devsw_conv[i].d_name; 1879 if (dname == NULL) 1880 continue; 1881 if (buflen < sizeof kd) { 1882 error = ENOMEM; 1883 break; 1884 } 1885 memset(&kd, 0, sizeof(kd)); 1886 kd.d_bmajor = devsw_conv[i].d_bmajor; 1887 kd.d_cmajor = devsw_conv[i].d_cmajor; 1888 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1889 error = copyout(&kd, where, sizeof kd); 1890 if (error != 0) 1891 break; 1892 buflen -= sizeof kd; 1893 where += sizeof kd; 1894 } 1895 *oldlenp = where - start; 1896 return error; 1897 } 1898 1899 /* 1900 * sysctl helper function for kern.file2 1901 */ 1902 static int 1903 sysctl_kern_file2(SYSCTLFN_ARGS) 1904 { 1905 struct proc *p; 1906 struct file *fp; 1907 struct filedesc *fd; 1908 struct kinfo_file kf; 1909 char *dp; 1910 u_int i, op; 1911 size_t len, needed, elem_size, out_size; 1912 int error, arg, elem_count; 1913 1914 if (namelen == 1 && name[0] == CTL_QUERY) 1915 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1916 1917 if (namelen != 4) 1918 return (EINVAL); 1919 1920 error = 0; 1921 dp = oldp; 1922 len = (oldp != NULL) ? *oldlenp : 0; 1923 op = name[0]; 1924 arg = name[1]; 1925 elem_size = name[2]; 1926 elem_count = name[3]; 1927 out_size = MIN(sizeof(kf), elem_size); 1928 needed = 0; 1929 1930 if (elem_size < 1 || elem_count < 0) 1931 return (EINVAL); 1932 1933 switch (op) { 1934 case KERN_FILE_BYFILE: 1935 /* 1936 * doesn't use arg so it must be zero 1937 */ 1938 if (arg != 0) 1939 return (EINVAL); 1940 LIST_FOREACH(fp, &filehead, f_list) { 1941 if (len >= elem_size && elem_count > 0) { 1942 fill_file(&kf, fp, NULL, 0); 1943 error = copyout(&kf, dp, out_size); 1944 if (error) 1945 break; 1946 dp += elem_size; 1947 len -= elem_size; 1948 } 1949 if (elem_count > 0) { 1950 needed += elem_size; 1951 if (elem_count != INT_MAX) 1952 elem_count--; 1953 } 1954 } 1955 break; 1956 case KERN_FILE_BYPID: 1957 if (arg < -1) 1958 /* -1 means all processes */ 1959 return (EINVAL); 1960 proclist_lock_read(); 1961 PROCLIST_FOREACH(p, &allproc) { 1962 if (p->p_stat == SIDL) 1963 /* skip embryonic processes */ 1964 continue; 1965 if (arg > 0 && p->p_pid != arg) 1966 /* pick only the one we want */ 1967 /* XXX want 0 to mean "kernel files" */ 1968 continue; 1969 fd = p->p_fd; 1970 for (i = 0; i < fd->fd_nfiles; i++) { 1971 fp = fd->fd_ofiles[i]; 1972 if (fp == NULL || !FILE_IS_USABLE(fp)) 1973 continue; 1974 if (len >= elem_size && elem_count > 0) { 1975 fill_file(&kf, fd->fd_ofiles[i], 1976 p, i); 1977 error = copyout(&kf, dp, out_size); 1978 if (error) 1979 break; 1980 dp += elem_size; 1981 len -= elem_size; 1982 } 1983 if (elem_count > 0) { 1984 needed += elem_size; 1985 if (elem_count != INT_MAX) 1986 elem_count--; 1987 } 1988 } 1989 } 1990 proclist_unlock_read(); 1991 break; 1992 default: 1993 return (EINVAL); 1994 } 1995 1996 if (oldp == NULL) 1997 needed += KERN_FILESLOP * elem_size; 1998 *oldlenp = needed; 1999 2000 return (error); 2001 } 2002 2003 static void 2004 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2005 { 2006 2007 memset(kp, 0, sizeof(*kp)); 2008 2009 kp->ki_fileaddr = PTRTOUINT64(fp); 2010 kp->ki_flag = fp->f_flag; 2011 kp->ki_iflags = fp->f_iflags; 2012 kp->ki_ftype = fp->f_type; 2013 kp->ki_count = fp->f_count; 2014 kp->ki_msgcount = fp->f_msgcount; 2015 kp->ki_usecount = fp->f_usecount; 2016 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2017 kp->ki_fuid = fp->f_cred->cr_uid; 2018 kp->ki_fgid = fp->f_cred->cr_gid; 2019 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2020 kp->ki_foffset = fp->f_offset; 2021 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2022 2023 /* vnode information to glue this file to something */ 2024 if (fp->f_type == DTYPE_VNODE) { 2025 struct vnode *vp = (struct vnode *)fp->f_data; 2026 2027 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2028 kp->ki_vsize = vp->v_size; 2029 kp->ki_vtype = vp->v_type; 2030 kp->ki_vtag = vp->v_tag; 2031 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2032 } 2033 2034 /* process information when retrieved via KERN_FILE_BYPID */ 2035 if (p) { 2036 kp->ki_pid = p->p_pid; 2037 kp->ki_fd = i; 2038 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2039 } 2040 } 2041 2042 static int 2043 sysctl_doeproc(SYSCTLFN_ARGS) 2044 { 2045 struct eproc eproc; 2046 struct kinfo_proc2 kproc2; 2047 struct kinfo_proc *dp; 2048 struct proc *p; 2049 const struct proclist_desc *pd; 2050 char *where, *dp2; 2051 int type, op, arg; 2052 u_int elem_size, elem_count; 2053 size_t buflen, needed; 2054 int error; 2055 2056 if (namelen == 1 && name[0] == CTL_QUERY) 2057 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2058 2059 dp = oldp; 2060 dp2 = where = oldp; 2061 buflen = where != NULL ? *oldlenp : 0; 2062 error = 0; 2063 needed = 0; 2064 type = rnode->sysctl_num; 2065 2066 if (type == KERN_PROC) { 2067 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2068 return (EINVAL); 2069 op = name[0]; 2070 if (op != KERN_PROC_ALL) 2071 arg = name[1]; 2072 else 2073 arg = 0; /* Quell compiler warning */ 2074 elem_size = elem_count = 0; /* Ditto */ 2075 } else { 2076 if (namelen != 4) 2077 return (EINVAL); 2078 op = name[0]; 2079 arg = name[1]; 2080 elem_size = name[2]; 2081 elem_count = name[3]; 2082 } 2083 2084 proclist_lock_read(); 2085 2086 pd = proclists; 2087 again: 2088 PROCLIST_FOREACH(p, pd->pd_list) { 2089 /* 2090 * Skip embryonic processes. 2091 */ 2092 if (p->p_stat == SIDL) 2093 continue; 2094 /* 2095 * TODO - make more efficient (see notes below). 2096 * do by session. 2097 */ 2098 switch (op) { 2099 2100 case KERN_PROC_PID: 2101 /* could do this with just a lookup */ 2102 if (p->p_pid != (pid_t)arg) 2103 continue; 2104 break; 2105 2106 case KERN_PROC_PGRP: 2107 /* could do this by traversing pgrp */ 2108 if (p->p_pgrp->pg_id != (pid_t)arg) 2109 continue; 2110 break; 2111 2112 case KERN_PROC_SESSION: 2113 if (p->p_session->s_sid != (pid_t)arg) 2114 continue; 2115 break; 2116 2117 case KERN_PROC_TTY: 2118 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2119 if ((p->p_flag & P_CONTROLT) == 0 || 2120 p->p_session->s_ttyp == NULL || 2121 p->p_session->s_ttyvp != NULL) 2122 continue; 2123 } else if ((p->p_flag & P_CONTROLT) == 0 || 2124 p->p_session->s_ttyp == NULL) { 2125 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2126 continue; 2127 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2128 continue; 2129 break; 2130 2131 case KERN_PROC_UID: 2132 if (p->p_ucred->cr_uid != (uid_t)arg) 2133 continue; 2134 break; 2135 2136 case KERN_PROC_RUID: 2137 if (p->p_cred->p_ruid != (uid_t)arg) 2138 continue; 2139 break; 2140 2141 case KERN_PROC_GID: 2142 if (p->p_ucred->cr_gid != (uid_t)arg) 2143 continue; 2144 break; 2145 2146 case KERN_PROC_RGID: 2147 if (p->p_cred->p_rgid != (uid_t)arg) 2148 continue; 2149 break; 2150 2151 case KERN_PROC_ALL: 2152 /* allow everything */ 2153 break; 2154 2155 default: 2156 error = EINVAL; 2157 goto cleanup; 2158 } 2159 if (type == KERN_PROC) { 2160 if (buflen >= sizeof(struct kinfo_proc)) { 2161 fill_eproc(p, &eproc); 2162 error = copyout(p, &dp->kp_proc, 2163 sizeof(struct proc)); 2164 if (error) 2165 goto cleanup; 2166 error = copyout(&eproc, &dp->kp_eproc, 2167 sizeof(eproc)); 2168 if (error) 2169 goto cleanup; 2170 dp++; 2171 buflen -= sizeof(struct kinfo_proc); 2172 } 2173 needed += sizeof(struct kinfo_proc); 2174 } else { /* KERN_PROC2 */ 2175 if (buflen >= elem_size && elem_count > 0) { 2176 fill_kproc2(p, &kproc2); 2177 /* 2178 * Copy out elem_size, but not larger than 2179 * the size of a struct kinfo_proc2. 2180 */ 2181 error = copyout(&kproc2, dp2, 2182 min(sizeof(kproc2), elem_size)); 2183 if (error) 2184 goto cleanup; 2185 dp2 += elem_size; 2186 buflen -= elem_size; 2187 elem_count--; 2188 } 2189 needed += elem_size; 2190 } 2191 } 2192 pd++; 2193 if (pd->pd_list != NULL) 2194 goto again; 2195 proclist_unlock_read(); 2196 2197 if (where != NULL) { 2198 if (type == KERN_PROC) 2199 *oldlenp = (char *)dp - where; 2200 else 2201 *oldlenp = dp2 - where; 2202 if (needed > *oldlenp) 2203 return (ENOMEM); 2204 } else { 2205 needed += KERN_PROCSLOP; 2206 *oldlenp = needed; 2207 } 2208 return (0); 2209 cleanup: 2210 proclist_unlock_read(); 2211 return (error); 2212 } 2213 2214 /* 2215 * sysctl helper routine for kern.proc_args pseudo-subtree. 2216 */ 2217 static int 2218 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2219 { 2220 struct ps_strings pss; 2221 struct proc *p, *up = l->l_proc; 2222 size_t len, upper_bound, xlen, i; 2223 struct uio auio; 2224 struct iovec aiov; 2225 vaddr_t argv; 2226 pid_t pid; 2227 int nargv, type, error; 2228 char *arg; 2229 char *tmp; 2230 2231 if (namelen == 1 && name[0] == CTL_QUERY) 2232 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2233 2234 if (newp != NULL || namelen != 2) 2235 return (EINVAL); 2236 pid = name[0]; 2237 type = name[1]; 2238 2239 switch (type) { 2240 case KERN_PROC_ARGV: 2241 case KERN_PROC_NARGV: 2242 case KERN_PROC_ENV: 2243 case KERN_PROC_NENV: 2244 /* ok */ 2245 break; 2246 default: 2247 return (EINVAL); 2248 } 2249 2250 /* check pid */ 2251 if ((p = pfind(pid)) == NULL) 2252 return (EINVAL); 2253 2254 /* only root or same user change look at the environment */ 2255 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2256 if (up->p_ucred->cr_uid != 0) { 2257 if (up->p_cred->p_ruid != p->p_cred->p_ruid || 2258 up->p_cred->p_ruid != p->p_cred->p_svuid) 2259 return (EPERM); 2260 } 2261 } 2262 2263 if (oldp == NULL) { 2264 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2265 *oldlenp = sizeof (int); 2266 else 2267 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2268 return (0); 2269 } 2270 2271 /* 2272 * Zombies don't have a stack, so we can't read their psstrings. 2273 * System processes also don't have a user stack. 2274 */ 2275 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) 2276 return (EINVAL); 2277 2278 /* 2279 * Lock the process down in memory. 2280 */ 2281 /* XXXCDC: how should locking work here? */ 2282 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) 2283 return (EFAULT); 2284 2285 p->p_vmspace->vm_refcnt++; /* XXX */ 2286 2287 /* 2288 * Allocate a temporary buffer to hold the arguments. 2289 */ 2290 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2291 2292 /* 2293 * Read in the ps_strings structure. 2294 */ 2295 aiov.iov_base = &pss; 2296 aiov.iov_len = sizeof(pss); 2297 auio.uio_iov = &aiov; 2298 auio.uio_iovcnt = 1; 2299 auio.uio_offset = (vaddr_t)p->p_psstr; 2300 auio.uio_resid = sizeof(pss); 2301 auio.uio_segflg = UIO_SYSSPACE; 2302 auio.uio_rw = UIO_READ; 2303 auio.uio_procp = NULL; 2304 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2305 if (error) 2306 goto done; 2307 2308 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2309 memcpy(&nargv, (char *)&pss + p->p_psnargv, sizeof(nargv)); 2310 else 2311 memcpy(&nargv, (char *)&pss + p->p_psnenv, sizeof(nargv)); 2312 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2313 error = copyout(&nargv, oldp, sizeof(nargv)); 2314 *oldlenp = sizeof(nargv); 2315 goto done; 2316 } 2317 /* 2318 * Now read the address of the argument vector. 2319 */ 2320 switch (type) { 2321 case KERN_PROC_ARGV: 2322 /* XXX compat32 stuff here */ 2323 memcpy(&tmp, (char *)&pss + p->p_psargv, sizeof(tmp)); 2324 break; 2325 case KERN_PROC_ENV: 2326 memcpy(&tmp, (char *)&pss + p->p_psenv, sizeof(tmp)); 2327 break; 2328 default: 2329 return (EINVAL); 2330 } 2331 auio.uio_offset = (off_t)(unsigned long)tmp; 2332 aiov.iov_base = &argv; 2333 aiov.iov_len = sizeof(argv); 2334 auio.uio_iov = &aiov; 2335 auio.uio_iovcnt = 1; 2336 auio.uio_resid = sizeof(argv); 2337 auio.uio_segflg = UIO_SYSSPACE; 2338 auio.uio_rw = UIO_READ; 2339 auio.uio_procp = NULL; 2340 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2341 if (error) 2342 goto done; 2343 2344 /* 2345 * Now copy in the actual argument vector, one page at a time, 2346 * since we don't know how long the vector is (though, we do 2347 * know how many NUL-terminated strings are in the vector). 2348 */ 2349 len = 0; 2350 upper_bound = *oldlenp; 2351 for (; nargv != 0 && len < upper_bound; len += xlen) { 2352 aiov.iov_base = arg; 2353 aiov.iov_len = PAGE_SIZE; 2354 auio.uio_iov = &aiov; 2355 auio.uio_iovcnt = 1; 2356 auio.uio_offset = argv + len; 2357 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2358 auio.uio_resid = xlen; 2359 auio.uio_segflg = UIO_SYSSPACE; 2360 auio.uio_rw = UIO_READ; 2361 auio.uio_procp = NULL; 2362 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2363 if (error) 2364 goto done; 2365 2366 for (i = 0; i < xlen && nargv != 0; i++) { 2367 if (arg[i] == '\0') 2368 nargv--; /* one full string */ 2369 } 2370 2371 /* 2372 * Make sure we don't copyout past the end of the user's 2373 * buffer. 2374 */ 2375 if (len + i > upper_bound) 2376 i = upper_bound - len; 2377 2378 error = copyout(arg, (char *)oldp + len, i); 2379 if (error) 2380 break; 2381 2382 if (nargv == 0) { 2383 len += i; 2384 break; 2385 } 2386 } 2387 *oldlenp = len; 2388 2389 done: 2390 uvmspace_free(p->p_vmspace); 2391 2392 free(arg, M_TEMP); 2393 return (error); 2394 } 2395 2396 /* 2397 * Sysctl helper routine for Verified Exec. 2398 */ 2399 #ifdef VERIFIED_EXEC 2400 static int 2401 sysctl_kern_veriexec(SYSCTLFN_ARGS) 2402 { 2403 int newval, error; 2404 int *var = NULL, raise_only = 0; 2405 struct sysctlnode node; 2406 2407 node = *rnode; 2408 2409 switch (rnode->sysctl_num) { 2410 case VERIEXEC_STRICT: 2411 raise_only = 1; 2412 var = &veriexec_strict; 2413 break; 2414 case VERIEXEC_ALGORITHMS: 2415 node.sysctl_data = veriexec_fp_names; 2416 node.sysctl_size = strlen(veriexec_fp_names) + 1; 2417 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2418 default: 2419 return (EINVAL); 2420 } 2421 2422 if (raise_only && (*var != 0) && (securelevel > 0)) 2423 return (EPERM); 2424 2425 newval = *var; 2426 2427 node.sysctl_data = &newval; 2428 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2429 if (error || newp == NULL) { 2430 return (error); 2431 } 2432 2433 *var = newval; 2434 2435 return (error); 2436 } 2437 #endif /* VERIFIED_EXEC */ 2438 2439 /* 2440 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2441 * calculate on the fly taking into account integer overflow and the 2442 * current wired count. 2443 */ 2444 static int 2445 sysctl_hw_usermem(SYSCTLFN_ARGS) 2446 { 2447 u_int ui; 2448 u_quad_t uq; 2449 struct sysctlnode node; 2450 2451 node = *rnode; 2452 switch (rnode->sysctl_num) { 2453 case HW_USERMEM: 2454 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2455 ui = UINT_MAX; 2456 else 2457 ui *= PAGE_SIZE; 2458 node.sysctl_data = &ui; 2459 break; 2460 case HW_USERMEM64: 2461 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2462 node.sysctl_data = &uq; 2463 break; 2464 default: 2465 return (EINVAL); 2466 } 2467 2468 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2469 } 2470 2471 /* 2472 * sysctl helper routine for kern.cnmagic node. pulls the old value 2473 * out, encoded, and stuffs the new value in for decoding. 2474 */ 2475 static int 2476 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2477 { 2478 char magic[CNS_LEN]; 2479 int error; 2480 struct sysctlnode node; 2481 2482 if (oldp) 2483 cn_get_magic(magic, CNS_LEN); 2484 node = *rnode; 2485 node.sysctl_data = &magic[0]; 2486 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2487 if (error || newp == NULL) 2488 return (error); 2489 2490 return (cn_set_magic(magic)); 2491 } 2492 2493 static int 2494 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2495 { 2496 int ncpu; 2497 struct sysctlnode node; 2498 2499 ncpu = sysctl_ncpus(); 2500 node = *rnode; 2501 node.sysctl_data = &ncpu; 2502 2503 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2504 } 2505 2506 2507 /* 2508 * ******************************************************************** 2509 * section 3: public helper routines that are used for more than one 2510 * node 2511 * ******************************************************************** 2512 */ 2513 2514 /* 2515 * sysctl helper routine for the kern.root_device node and some ports' 2516 * machdep.root_device nodes. 2517 */ 2518 int 2519 sysctl_root_device(SYSCTLFN_ARGS) 2520 { 2521 struct sysctlnode node; 2522 2523 node = *rnode; 2524 node.sysctl_data = root_device->dv_xname; 2525 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2526 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2527 } 2528 2529 /* 2530 * sysctl helper routine for kern.consdev, dependent on the current 2531 * state of the console. also used for machdep.console_device on some 2532 * ports. 2533 */ 2534 int 2535 sysctl_consdev(SYSCTLFN_ARGS) 2536 { 2537 dev_t consdev; 2538 struct sysctlnode node; 2539 2540 if (cn_tab != NULL) 2541 consdev = cn_tab->cn_dev; 2542 else 2543 consdev = NODEV; 2544 node = *rnode; 2545 node.sysctl_data = &consdev; 2546 node.sysctl_size = sizeof(consdev); 2547 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2548 } 2549 2550 /* 2551 * ******************************************************************** 2552 * section 4: support for some helpers 2553 * ******************************************************************** 2554 */ 2555 2556 /* 2557 * Fill in a kinfo_proc2 structure for the specified process. 2558 */ 2559 static void 2560 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2561 { 2562 struct tty *tp; 2563 struct lwp *l; 2564 struct timeval ut, st; 2565 2566 memset(ki, 0, sizeof(*ki)); 2567 2568 ki->p_paddr = PTRTOUINT64(p); 2569 ki->p_fd = PTRTOUINT64(p->p_fd); 2570 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2571 ki->p_stats = PTRTOUINT64(p->p_stats); 2572 ki->p_limit = PTRTOUINT64(p->p_limit); 2573 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2574 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2575 ki->p_sess = PTRTOUINT64(p->p_session); 2576 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2577 ki->p_ru = PTRTOUINT64(p->p_ru); 2578 2579 ki->p_eflag = 0; 2580 ki->p_exitsig = p->p_exitsig; 2581 ki->p_flag = p->p_flag; 2582 2583 ki->p_pid = p->p_pid; 2584 if (p->p_pptr) 2585 ki->p_ppid = p->p_pptr->p_pid; 2586 else 2587 ki->p_ppid = 0; 2588 ki->p_sid = p->p_session->s_sid; 2589 ki->p__pgid = p->p_pgrp->pg_id; 2590 2591 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2592 2593 ki->p_uid = p->p_ucred->cr_uid; 2594 ki->p_ruid = p->p_cred->p_ruid; 2595 ki->p_gid = p->p_ucred->cr_gid; 2596 ki->p_rgid = p->p_cred->p_rgid; 2597 ki->p_svuid = p->p_cred->p_svuid; 2598 ki->p_svgid = p->p_cred->p_svgid; 2599 2600 memcpy(ki->p_groups, p->p_cred->pc_ucred->cr_groups, 2601 min(sizeof(ki->p_groups), sizeof(p->p_cred->pc_ucred->cr_groups))); 2602 ki->p_ngroups = p->p_cred->pc_ucred->cr_ngroups; 2603 2604 ki->p_jobc = p->p_pgrp->pg_jobc; 2605 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2606 ki->p_tdev = tp->t_dev; 2607 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2608 ki->p_tsess = PTRTOUINT64(tp->t_session); 2609 } else { 2610 ki->p_tdev = NODEV; 2611 } 2612 2613 ki->p_estcpu = p->p_estcpu; 2614 ki->p_rtime_sec = p->p_rtime.tv_sec; 2615 ki->p_rtime_usec = p->p_rtime.tv_usec; 2616 ki->p_cpticks = p->p_cpticks; 2617 ki->p_pctcpu = p->p_pctcpu; 2618 2619 ki->p_uticks = p->p_uticks; 2620 ki->p_sticks = p->p_sticks; 2621 ki->p_iticks = p->p_iticks; 2622 2623 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2624 ki->p_traceflag = p->p_traceflag; 2625 2626 2627 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2628 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2629 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2630 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2631 2632 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2633 ki->p_realstat = p->p_stat; 2634 ki->p_nice = p->p_nice; 2635 2636 ki->p_xstat = p->p_xstat; 2637 ki->p_acflag = p->p_acflag; 2638 2639 strncpy(ki->p_comm, p->p_comm, 2640 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2641 2642 strncpy(ki->p_login, p->p_session->s_login, 2643 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2644 2645 ki->p_nlwps = p->p_nlwps; 2646 ki->p_nrlwps = p->p_nrlwps; 2647 ki->p_realflag = p->p_flag; 2648 2649 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2650 ki->p_vm_rssize = 0; 2651 ki->p_vm_tsize = 0; 2652 ki->p_vm_dsize = 0; 2653 ki->p_vm_ssize = 0; 2654 l = NULL; 2655 } else { 2656 struct vmspace *vm = p->p_vmspace; 2657 2658 ki->p_vm_rssize = vm_resident_count(vm); 2659 ki->p_vm_tsize = vm->vm_tsize; 2660 ki->p_vm_dsize = vm->vm_dsize; 2661 ki->p_vm_ssize = vm->vm_ssize; 2662 2663 /* Pick a "representative" LWP */ 2664 l = proc_representative_lwp(p); 2665 ki->p_forw = PTRTOUINT64(l->l_forw); 2666 ki->p_back = PTRTOUINT64(l->l_back); 2667 ki->p_addr = PTRTOUINT64(l->l_addr); 2668 ki->p_stat = l->l_stat; 2669 ki->p_flag |= l->l_flag; 2670 ki->p_swtime = l->l_swtime; 2671 ki->p_slptime = l->l_slptime; 2672 if (l->l_stat == LSONPROC) { 2673 KDASSERT(l->l_cpu != NULL); 2674 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2675 } else 2676 ki->p_schedflags = 0; 2677 ki->p_holdcnt = l->l_holdcnt; 2678 ki->p_priority = l->l_priority; 2679 ki->p_usrpri = l->l_usrpri; 2680 if (l->l_wmesg) 2681 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2682 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2683 2684 } 2685 2686 if (p->p_session->s_ttyvp) 2687 ki->p_eflag |= EPROC_CTTY; 2688 if (SESS_LEADER(p)) 2689 ki->p_eflag |= EPROC_SLEADER; 2690 2691 /* XXX Is this double check necessary? */ 2692 if (P_ZOMBIE(p)) { 2693 ki->p_uvalid = 0; 2694 } else { 2695 ki->p_uvalid = 1; 2696 2697 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2698 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2699 2700 calcru(p, &ut, &st, 0); 2701 ki->p_uutime_sec = ut.tv_sec; 2702 ki->p_uutime_usec = ut.tv_usec; 2703 ki->p_ustime_sec = st.tv_sec; 2704 ki->p_ustime_usec = st.tv_usec; 2705 2706 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2707 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2708 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2709 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2710 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2711 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2712 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2713 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2714 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2715 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2716 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2717 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2718 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 2719 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 2720 2721 timeradd(&p->p_stats->p_cru.ru_utime, 2722 &p->p_stats->p_cru.ru_stime, &ut); 2723 ki->p_uctime_sec = ut.tv_sec; 2724 ki->p_uctime_usec = ut.tv_usec; 2725 } 2726 #ifdef MULTIPROCESSOR 2727 if (l && l->l_cpu != NULL) 2728 ki->p_cpuid = l->l_cpu->ci_cpuid; 2729 else 2730 #endif 2731 ki->p_cpuid = KI_NOCPU; 2732 } 2733 2734 /* 2735 * Fill in a kinfo_lwp structure for the specified lwp. 2736 */ 2737 static void 2738 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2739 { 2740 2741 kl->l_forw = PTRTOUINT64(l->l_forw); 2742 kl->l_back = PTRTOUINT64(l->l_back); 2743 kl->l_laddr = PTRTOUINT64(l); 2744 kl->l_addr = PTRTOUINT64(l->l_addr); 2745 kl->l_stat = l->l_stat; 2746 kl->l_lid = l->l_lid; 2747 kl->l_flag = l->l_flag; 2748 2749 kl->l_swtime = l->l_swtime; 2750 kl->l_slptime = l->l_slptime; 2751 if (l->l_stat == LSONPROC) { 2752 KDASSERT(l->l_cpu != NULL); 2753 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2754 } else 2755 kl->l_schedflags = 0; 2756 kl->l_holdcnt = l->l_holdcnt; 2757 kl->l_priority = l->l_priority; 2758 kl->l_usrpri = l->l_usrpri; 2759 if (l->l_wmesg) 2760 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2761 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2762 #ifdef MULTIPROCESSOR 2763 if (l->l_cpu != NULL) 2764 kl->l_cpuid = l->l_cpu->ci_cpuid; 2765 else 2766 #endif 2767 kl->l_cpuid = KI_NOCPU; 2768 } 2769 2770 /* 2771 * Fill in an eproc structure for the specified process. 2772 */ 2773 void 2774 fill_eproc(struct proc *p, struct eproc *ep) 2775 { 2776 struct tty *tp; 2777 struct lwp *l; 2778 2779 ep->e_paddr = p; 2780 ep->e_sess = p->p_session; 2781 ep->e_pcred = *p->p_cred; 2782 ep->e_ucred = *p->p_ucred; 2783 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2784 ep->e_vm.vm_rssize = 0; 2785 ep->e_vm.vm_tsize = 0; 2786 ep->e_vm.vm_dsize = 0; 2787 ep->e_vm.vm_ssize = 0; 2788 /* ep->e_vm.vm_pmap = XXX; */ 2789 } else { 2790 struct vmspace *vm = p->p_vmspace; 2791 2792 ep->e_vm.vm_rssize = vm_resident_count(vm); 2793 ep->e_vm.vm_tsize = vm->vm_tsize; 2794 ep->e_vm.vm_dsize = vm->vm_dsize; 2795 ep->e_vm.vm_ssize = vm->vm_ssize; 2796 2797 /* Pick a "representative" LWP */ 2798 l = proc_representative_lwp(p); 2799 2800 if (l->l_wmesg) 2801 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2802 } 2803 if (p->p_pptr) 2804 ep->e_ppid = p->p_pptr->p_pid; 2805 else 2806 ep->e_ppid = 0; 2807 ep->e_pgid = p->p_pgrp->pg_id; 2808 ep->e_sid = ep->e_sess->s_sid; 2809 ep->e_jobc = p->p_pgrp->pg_jobc; 2810 if ((p->p_flag & P_CONTROLT) && 2811 (tp = ep->e_sess->s_ttyp)) { 2812 ep->e_tdev = tp->t_dev; 2813 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2814 ep->e_tsess = tp->t_session; 2815 } else 2816 ep->e_tdev = NODEV; 2817 2818 ep->e_xsize = ep->e_xrssize = 0; 2819 ep->e_xccount = ep->e_xswrss = 0; 2820 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2821 if (SESS_LEADER(p)) 2822 ep->e_flag |= EPROC_SLEADER; 2823 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2824 } 2825
Indexes created Tue Sep 23 07:09:52 GMT 2025