init_sysctl.c revision 1.61.2.1
1 /* $NetBSD: init_sysctl.c,v 1.61.2.1 2006/04/22 11:39:58 simonb 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 1.61.2.1 2006/04/22 11:39:58 simonb 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 #include <sys/stat.h> 78 79 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 80 #include <sys/ipc.h> 81 #endif 82 #ifdef SYSVMSG 83 #include <sys/msg.h> 84 #endif 85 #ifdef SYSVSEM 86 #include <sys/sem.h> 87 #endif 88 #ifdef SYSVSHM 89 #include <sys/shm.h> 90 #endif 91 92 #include <machine/cpu.h> 93 94 /* XXX this should not be here */ 95 int security_curtain = 0; 96 int security_setidcore_dump; 97 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 98 uid_t security_setidcore_owner = 0; 99 gid_t security_setidcore_group = 0; 100 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 101 102 /* 103 * try over estimating by 5 procs/lwps 104 */ 105 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 106 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 107 108 #ifndef MULTIPROCESSOR 109 #define sysctl_ncpus() (1) 110 #else /* MULTIPROCESSOR */ 111 #ifndef CPU_INFO_FOREACH 112 #define CPU_INFO_ITERATOR int 113 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 114 #endif 115 static int 116 sysctl_ncpus(void) 117 { 118 struct cpu_info *ci; 119 CPU_INFO_ITERATOR cii; 120 121 int ncpus = 0; 122 for (CPU_INFO_FOREACH(cii, ci)) 123 ncpus++; 124 return (ncpus); 125 } 126 #endif /* MULTIPROCESSOR */ 127 128 #ifdef DIAGNOSTIC 129 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 130 #endif 131 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 132 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 133 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 134 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 135 static int sysctl_setlen(SYSCTLFN_PROTO); 136 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 137 static int sysctl_kern_file(SYSCTLFN_PROTO); 138 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 139 static int sysctl_msgbuf(SYSCTLFN_PROTO); 140 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 141 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 142 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 143 static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 144 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 145 #if NPTY > 0 146 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 147 #endif /* NPTY > 0 */ 148 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 149 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 150 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 151 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 152 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 153 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 154 static int sysctl_kern_file2(SYSCTLFN_PROTO); 155 #ifdef VERIFIED_EXEC 156 static int sysctl_kern_veriexec(SYSCTLFN_PROTO); 157 #endif 158 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 159 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 160 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 161 static int sysctl_doeproc(SYSCTLFN_PROTO); 162 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 163 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 164 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 165 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 166 167 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 168 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 169 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 170 int); 171 172 /* 173 * ******************************************************************** 174 * section 1: setup routines 175 * ******************************************************************** 176 * these functions are stuffed into a link set for sysctl setup 177 * functions. they're never called or referenced from anywhere else. 178 * ******************************************************************** 179 */ 180 181 /* 182 * sets up the base nodes... 183 */ 184 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 185 { 186 187 sysctl_createv(clog, 0, NULL, NULL, 188 CTLFLAG_PERMANENT, 189 CTLTYPE_NODE, "kern", 190 SYSCTL_DESCR("High kernel"), 191 NULL, 0, NULL, 0, 192 CTL_KERN, CTL_EOL); 193 sysctl_createv(clog, 0, NULL, NULL, 194 CTLFLAG_PERMANENT, 195 CTLTYPE_NODE, "vm", 196 SYSCTL_DESCR("Virtual memory"), 197 NULL, 0, NULL, 0, 198 CTL_VM, CTL_EOL); 199 sysctl_createv(clog, 0, NULL, NULL, 200 CTLFLAG_PERMANENT, 201 CTLTYPE_NODE, "vfs", 202 SYSCTL_DESCR("Filesystem"), 203 NULL, 0, NULL, 0, 204 CTL_VFS, CTL_EOL); 205 sysctl_createv(clog, 0, NULL, NULL, 206 CTLFLAG_PERMANENT, 207 CTLTYPE_NODE, "net", 208 SYSCTL_DESCR("Networking"), 209 NULL, 0, NULL, 0, 210 CTL_NET, CTL_EOL); 211 sysctl_createv(clog, 0, NULL, NULL, 212 CTLFLAG_PERMANENT, 213 CTLTYPE_NODE, "debug", 214 SYSCTL_DESCR("Debugging"), 215 NULL, 0, NULL, 0, 216 CTL_DEBUG, CTL_EOL); 217 sysctl_createv(clog, 0, NULL, NULL, 218 CTLFLAG_PERMANENT, 219 CTLTYPE_NODE, "hw", 220 SYSCTL_DESCR("Generic CPU, I/O"), 221 NULL, 0, NULL, 0, 222 CTL_HW, CTL_EOL); 223 sysctl_createv(clog, 0, NULL, NULL, 224 CTLFLAG_PERMANENT, 225 CTLTYPE_NODE, "machdep", 226 SYSCTL_DESCR("Machine dependent"), 227 NULL, 0, NULL, 0, 228 CTL_MACHDEP, CTL_EOL); 229 /* 230 * this node is inserted so that the sysctl nodes in libc can 231 * operate. 232 */ 233 sysctl_createv(clog, 0, NULL, NULL, 234 CTLFLAG_PERMANENT, 235 CTLTYPE_NODE, "user", 236 SYSCTL_DESCR("User-level"), 237 NULL, 0, NULL, 0, 238 CTL_USER, CTL_EOL); 239 sysctl_createv(clog, 0, NULL, NULL, 240 CTLFLAG_PERMANENT, 241 CTLTYPE_NODE, "ddb", 242 SYSCTL_DESCR("In-kernel debugger"), 243 NULL, 0, NULL, 0, 244 CTL_DDB, CTL_EOL); 245 sysctl_createv(clog, 0, NULL, NULL, 246 CTLFLAG_PERMANENT, 247 CTLTYPE_NODE, "proc", 248 SYSCTL_DESCR("Per-process"), 249 NULL, 0, NULL, 0, 250 CTL_PROC, CTL_EOL); 251 sysctl_createv(clog, 0, NULL, NULL, 252 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 253 CTLTYPE_NODE, "vendor", 254 SYSCTL_DESCR("Vendor specific"), 255 NULL, 0, NULL, 0, 256 CTL_VENDOR, CTL_EOL); 257 sysctl_createv(clog, 0, NULL, NULL, 258 CTLFLAG_PERMANENT, 259 CTLTYPE_NODE, "emul", 260 SYSCTL_DESCR("Emulation settings"), 261 NULL, 0, NULL, 0, 262 CTL_EMUL, CTL_EOL); 263 sysctl_createv(clog, 0, NULL, NULL, 264 CTLFLAG_PERMANENT, 265 CTLTYPE_NODE, "security", 266 SYSCTL_DESCR("Security"), 267 NULL, 0, NULL, 0, 268 CTL_SECURITY, CTL_EOL); 269 } 270 271 /* 272 * this setup routine is a replacement for kern_sysctl() 273 */ 274 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 275 { 276 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 277 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 278 extern int dumponpanic; /* defined in kern/subr_prf.c */ 279 280 sysctl_createv(clog, 0, NULL, NULL, 281 CTLFLAG_PERMANENT, 282 CTLTYPE_NODE, "kern", NULL, 283 NULL, 0, NULL, 0, 284 CTL_KERN, CTL_EOL); 285 286 sysctl_createv(clog, 0, NULL, NULL, 287 CTLFLAG_PERMANENT, 288 CTLTYPE_STRING, "ostype", 289 SYSCTL_DESCR("Operating system type"), 290 NULL, 0, &ostype, 0, 291 CTL_KERN, KERN_OSTYPE, CTL_EOL); 292 sysctl_createv(clog, 0, NULL, NULL, 293 CTLFLAG_PERMANENT, 294 CTLTYPE_STRING, "osrelease", 295 SYSCTL_DESCR("Operating system release"), 296 NULL, 0, &osrelease, 0, 297 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 298 sysctl_createv(clog, 0, NULL, NULL, 299 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 300 CTLTYPE_INT, "osrevision", 301 SYSCTL_DESCR("Operating system revision"), 302 NULL, __NetBSD_Version__, NULL, 0, 303 CTL_KERN, KERN_OSREV, CTL_EOL); 304 sysctl_createv(clog, 0, NULL, NULL, 305 CTLFLAG_PERMANENT, 306 CTLTYPE_STRING, "version", 307 SYSCTL_DESCR("Kernel version"), 308 NULL, 0, &version, 0, 309 CTL_KERN, KERN_VERSION, CTL_EOL); 310 sysctl_createv(clog, 0, NULL, NULL, 311 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 312 CTLTYPE_INT, "maxvnodes", 313 SYSCTL_DESCR("Maximum number of vnodes"), 314 sysctl_kern_maxvnodes, 0, NULL, 0, 315 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 316 sysctl_createv(clog, 0, NULL, NULL, 317 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 318 CTLTYPE_INT, "maxproc", 319 SYSCTL_DESCR("Maximum number of simultaneous processes"), 320 sysctl_kern_maxproc, 0, NULL, 0, 321 CTL_KERN, KERN_MAXPROC, CTL_EOL); 322 sysctl_createv(clog, 0, NULL, NULL, 323 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 324 CTLTYPE_INT, "maxfiles", 325 SYSCTL_DESCR("Maximum number of open files"), 326 NULL, 0, &maxfiles, 0, 327 CTL_KERN, KERN_MAXFILES, CTL_EOL); 328 sysctl_createv(clog, 0, NULL, NULL, 329 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 330 CTLTYPE_INT, "argmax", 331 SYSCTL_DESCR("Maximum number of bytes of arguments to " 332 "execve(2)"), 333 NULL, ARG_MAX, NULL, 0, 334 CTL_KERN, KERN_ARGMAX, CTL_EOL); 335 sysctl_createv(clog, 0, NULL, NULL, 336 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 337 CTLTYPE_STRING, "hostname", 338 SYSCTL_DESCR("System hostname"), 339 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 340 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 341 sysctl_createv(clog, 0, NULL, NULL, 342 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 343 CTLTYPE_INT, "hostid", 344 SYSCTL_DESCR("System host ID number"), 345 sysctl_kern_hostid, 0, NULL, 0, 346 CTL_KERN, KERN_HOSTID, CTL_EOL); 347 sysctl_createv(clog, 0, NULL, NULL, 348 CTLFLAG_PERMANENT, 349 CTLTYPE_STRUCT, "clockrate", 350 SYSCTL_DESCR("Kernel clock rates"), 351 sysctl_kern_clockrate, 0, NULL, 352 sizeof(struct clockinfo), 353 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 354 sysctl_createv(clog, 0, NULL, NULL, 355 CTLFLAG_PERMANENT, 356 CTLTYPE_INT, "hardclock_ticks", 357 SYSCTL_DESCR("Number of hardclock ticks"), 358 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 359 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 360 sysctl_createv(clog, 0, NULL, NULL, 361 CTLFLAG_PERMANENT, 362 CTLTYPE_STRUCT, "vnode", 363 SYSCTL_DESCR("System vnode table"), 364 sysctl_kern_vnode, 0, NULL, 0, 365 CTL_KERN, KERN_VNODE, CTL_EOL); 366 sysctl_createv(clog, 0, NULL, NULL, 367 CTLFLAG_PERMANENT, 368 CTLTYPE_STRUCT, "file", 369 SYSCTL_DESCR("System open file table"), 370 sysctl_kern_file, 0, NULL, 0, 371 CTL_KERN, KERN_FILE, CTL_EOL); 372 #ifndef GPROF 373 sysctl_createv(clog, 0, NULL, NULL, 374 CTLFLAG_PERMANENT, 375 CTLTYPE_NODE, "profiling", 376 SYSCTL_DESCR("Profiling information (not available)"), 377 sysctl_notavail, 0, NULL, 0, 378 CTL_KERN, KERN_PROF, CTL_EOL); 379 #endif 380 sysctl_createv(clog, 0, NULL, NULL, 381 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 382 CTLTYPE_INT, "posix1version", 383 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 384 "with which the operating system attempts " 385 "to comply"), 386 NULL, _POSIX_VERSION, NULL, 0, 387 CTL_KERN, KERN_POSIX1, CTL_EOL); 388 sysctl_createv(clog, 0, NULL, NULL, 389 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 390 CTLTYPE_INT, "ngroups", 391 SYSCTL_DESCR("Maximum number of supplemental groups"), 392 NULL, NGROUPS_MAX, NULL, 0, 393 CTL_KERN, KERN_NGROUPS, CTL_EOL); 394 sysctl_createv(clog, 0, NULL, NULL, 395 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 396 CTLTYPE_INT, "job_control", 397 SYSCTL_DESCR("Whether job control is available"), 398 NULL, 1, NULL, 0, 399 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 400 sysctl_createv(clog, 0, NULL, NULL, 401 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 402 CTLTYPE_INT, "saved_ids", 403 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 404 "available"), NULL, 405 #ifdef _POSIX_SAVED_IDS 406 1, 407 #else /* _POSIX_SAVED_IDS */ 408 0, 409 #endif /* _POSIX_SAVED_IDS */ 410 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 411 sysctl_createv(clog, 0, NULL, NULL, 412 CTLFLAG_PERMANENT, 413 CTLTYPE_STRUCT, "boottime", 414 SYSCTL_DESCR("System boot time"), 415 NULL, 0, &boottime, sizeof(boottime), 416 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 417 sysctl_createv(clog, 0, NULL, NULL, 418 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 419 CTLTYPE_STRING, "domainname", 420 SYSCTL_DESCR("YP domain name"), 421 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 422 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 423 sysctl_createv(clog, 0, NULL, NULL, 424 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 425 CTLTYPE_INT, "maxpartitions", 426 SYSCTL_DESCR("Maximum number of partitions allowed per " 427 "disk"), 428 NULL, MAXPARTITIONS, NULL, 0, 429 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 430 sysctl_createv(clog, 0, NULL, NULL, 431 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 432 CTLTYPE_INT, "rawpartition", 433 SYSCTL_DESCR("Raw partition of a disk"), 434 NULL, RAW_PART, NULL, 0, 435 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 436 sysctl_createv(clog, 0, NULL, NULL, 437 CTLFLAG_PERMANENT, 438 CTLTYPE_STRUCT, "timex", NULL, 439 sysctl_notavail, 0, NULL, 0, 440 CTL_KERN, KERN_TIMEX, CTL_EOL); 441 sysctl_createv(clog, 0, NULL, NULL, 442 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 443 CTLTYPE_INT, "autonicetime", 444 SYSCTL_DESCR("CPU clock seconds before non-root " 445 "process priority is lowered"), 446 sysctl_kern_autonice, 0, &autonicetime, 0, 447 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 448 sysctl_createv(clog, 0, NULL, NULL, 449 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 450 CTLTYPE_INT, "autoniceval", 451 SYSCTL_DESCR("Automatic reniced non-root process " 452 "priority"), 453 sysctl_kern_autonice, 0, &autoniceval, 0, 454 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 455 sysctl_createv(clog, 0, NULL, NULL, 456 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 457 CTLTYPE_INT, "rtc_offset", 458 SYSCTL_DESCR("Offset of real time clock from UTC in " 459 "minutes"), 460 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 461 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 462 sysctl_createv(clog, 0, NULL, NULL, 463 CTLFLAG_PERMANENT, 464 CTLTYPE_STRING, "root_device", 465 SYSCTL_DESCR("Name of the root device"), 466 sysctl_root_device, 0, NULL, 0, 467 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 468 sysctl_createv(clog, 0, NULL, NULL, 469 CTLFLAG_PERMANENT, 470 CTLTYPE_INT, "msgbufsize", 471 SYSCTL_DESCR("Size of the kernel message buffer"), 472 sysctl_msgbuf, 0, NULL, 0, 473 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 474 sysctl_createv(clog, 0, NULL, NULL, 475 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 476 CTLTYPE_INT, "fsync", 477 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 478 "Synchronization Option is available on " 479 "this system"), 480 NULL, 1, NULL, 0, 481 CTL_KERN, KERN_FSYNC, CTL_EOL); 482 sysctl_createv(clog, 0, NULL, NULL, 483 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 484 CTLTYPE_INT, "sysvmsg", 485 SYSCTL_DESCR("System V style message support available"), 486 NULL, 487 #ifdef SYSVMSG 488 1, 489 #else /* SYSVMSG */ 490 0, 491 #endif /* SYSVMSG */ 492 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 493 sysctl_createv(clog, 0, NULL, NULL, 494 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 495 CTLTYPE_INT, "sysvsem", 496 SYSCTL_DESCR("System V style semaphore support " 497 "available"), NULL, 498 #ifdef SYSVSEM 499 1, 500 #else /* SYSVSEM */ 501 0, 502 #endif /* SYSVSEM */ 503 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 504 sysctl_createv(clog, 0, NULL, NULL, 505 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 506 CTLTYPE_INT, "sysvshm", 507 SYSCTL_DESCR("System V style shared memory support " 508 "available"), NULL, 509 #ifdef SYSVSHM 510 1, 511 #else /* SYSVSHM */ 512 0, 513 #endif /* SYSVSHM */ 514 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 515 sysctl_createv(clog, 0, NULL, NULL, 516 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 517 CTLTYPE_INT, "synchronized_io", 518 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 519 "I/O Option is available on this system"), 520 NULL, 1, NULL, 0, 521 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 522 sysctl_createv(clog, 0, NULL, NULL, 523 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 524 CTLTYPE_INT, "iov_max", 525 SYSCTL_DESCR("Maximum number of iovec structures per " 526 "process"), 527 NULL, IOV_MAX, NULL, 0, 528 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 529 sysctl_createv(clog, 0, NULL, NULL, 530 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 531 CTLTYPE_INT, "mapped_files", 532 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 533 "Files Option is available on this system"), 534 NULL, 1, NULL, 0, 535 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 536 sysctl_createv(clog, 0, NULL, NULL, 537 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 538 CTLTYPE_INT, "memlock", 539 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 540 "Locking Option is available on this " 541 "system"), 542 NULL, 1, NULL, 0, 543 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 544 sysctl_createv(clog, 0, NULL, NULL, 545 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 546 CTLTYPE_INT, "memlock_range", 547 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 548 "Locking Option is available on this " 549 "system"), 550 NULL, 1, NULL, 0, 551 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 552 sysctl_createv(clog, 0, NULL, NULL, 553 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 554 CTLTYPE_INT, "memory_protection", 555 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 556 "Protection Option is available on this " 557 "system"), 558 NULL, 1, NULL, 0, 559 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 560 sysctl_createv(clog, 0, NULL, NULL, 561 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 562 CTLTYPE_INT, "login_name_max", 563 SYSCTL_DESCR("Maximum login name length"), 564 NULL, LOGIN_NAME_MAX, NULL, 0, 565 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 566 sysctl_createv(clog, 0, NULL, NULL, 567 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 568 CTLTYPE_STRING, "defcorename", 569 SYSCTL_DESCR("Default core file name"), 570 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 571 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 572 sysctl_createv(clog, 0, NULL, NULL, 573 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 574 CTLTYPE_INT, "logsigexit", 575 SYSCTL_DESCR("Log process exit when caused by signals"), 576 NULL, 0, &kern_logsigexit, 0, 577 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 578 sysctl_createv(clog, 0, NULL, NULL, 579 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 580 CTLTYPE_INT, "fscale", 581 SYSCTL_DESCR("Kernel fixed-point scale factor"), 582 NULL, FSCALE, NULL, 0, 583 CTL_KERN, KERN_FSCALE, CTL_EOL); 584 sysctl_createv(clog, 0, NULL, NULL, 585 CTLFLAG_PERMANENT, 586 CTLTYPE_INT, "ccpu", 587 SYSCTL_DESCR("Scheduler exponential decay value"), 588 NULL, 0, &ccpu, 0, 589 CTL_KERN, KERN_CCPU, CTL_EOL); 590 sysctl_createv(clog, 0, NULL, NULL, 591 CTLFLAG_PERMANENT, 592 CTLTYPE_STRUCT, "cp_time", 593 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 594 sysctl_kern_cptime, 0, NULL, 0, 595 CTL_KERN, KERN_CP_TIME, CTL_EOL); 596 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 597 sysctl_createv(clog, 0, NULL, NULL, 598 CTLFLAG_PERMANENT, 599 CTLTYPE_STRUCT, "sysvipc_info", 600 SYSCTL_DESCR("System V style IPC information"), 601 sysctl_kern_sysvipc, 0, NULL, 0, 602 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 603 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 604 sysctl_createv(clog, 0, NULL, NULL, 605 CTLFLAG_PERMANENT, 606 CTLTYPE_INT, "msgbuf", 607 SYSCTL_DESCR("Kernel message buffer"), 608 sysctl_msgbuf, 0, NULL, 0, 609 CTL_KERN, KERN_MSGBUF, CTL_EOL); 610 sysctl_createv(clog, 0, NULL, NULL, 611 CTLFLAG_PERMANENT, 612 CTLTYPE_STRUCT, "consdev", 613 SYSCTL_DESCR("Console device"), 614 sysctl_consdev, 0, NULL, sizeof(dev_t), 615 CTL_KERN, KERN_CONSDEV, CTL_EOL); 616 #if NPTY > 0 617 sysctl_createv(clog, 0, NULL, NULL, 618 CTLFLAG_PERMANENT, 619 CTLTYPE_INT, "maxptys", 620 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 621 sysctl_kern_maxptys, 0, NULL, 0, 622 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 623 #endif /* NPTY > 0 */ 624 sysctl_createv(clog, 0, NULL, NULL, 625 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 626 CTLTYPE_INT, "maxphys", 627 SYSCTL_DESCR("Maximum raw I/O transfer size"), 628 NULL, MAXPHYS, NULL, 0, 629 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 630 sysctl_createv(clog, 0, NULL, NULL, 631 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 632 CTLTYPE_INT, "sbmax", 633 SYSCTL_DESCR("Maximum socket buffer size"), 634 sysctl_kern_sbmax, 0, NULL, 0, 635 CTL_KERN, KERN_SBMAX, CTL_EOL); 636 sysctl_createv(clog, 0, NULL, NULL, 637 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 638 CTLTYPE_INT, "monotonic_clock", 639 SYSCTL_DESCR("Implementation version of the POSIX " 640 "1003.1b Monotonic Clock Option"), 641 /* XXX _POSIX_VERSION */ 642 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 643 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 644 sysctl_createv(clog, 0, NULL, NULL, 645 CTLFLAG_PERMANENT, 646 CTLTYPE_INT, "urandom", 647 SYSCTL_DESCR("Random integer value"), 648 sysctl_kern_urnd, 0, NULL, 0, 649 CTL_KERN, KERN_URND, CTL_EOL); 650 sysctl_createv(clog, 0, NULL, NULL, 651 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 652 CTLTYPE_INT, "labelsector", 653 SYSCTL_DESCR("Sector number containing the disklabel"), 654 NULL, LABELSECTOR, NULL, 0, 655 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 656 sysctl_createv(clog, 0, NULL, NULL, 657 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 658 CTLTYPE_INT, "labeloffset", 659 SYSCTL_DESCR("Offset of the disklabel within the " 660 "sector"), 661 NULL, LABELOFFSET, NULL, 0, 662 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 663 sysctl_createv(clog, 0, NULL, NULL, 664 CTLFLAG_PERMANENT, 665 CTLTYPE_NODE, "lwp", 666 SYSCTL_DESCR("System-wide LWP information"), 667 sysctl_kern_lwp, 0, NULL, 0, 668 CTL_KERN, KERN_LWP, CTL_EOL); 669 sysctl_createv(clog, 0, NULL, NULL, 670 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 671 CTLTYPE_INT, "forkfsleep", 672 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 673 "to process limits"), 674 sysctl_kern_forkfsleep, 0, NULL, 0, 675 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 676 sysctl_createv(clog, 0, NULL, NULL, 677 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 678 CTLTYPE_INT, "posix_threads", 679 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 680 "Threads option to which the system " 681 "attempts to conform"), 682 /* XXX _POSIX_VERSION */ 683 NULL, _POSIX_THREADS, NULL, 0, 684 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 685 sysctl_createv(clog, 0, NULL, NULL, 686 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 687 CTLTYPE_INT, "posix_semaphores", 688 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 689 "Semaphores option to which the system " 690 "attempts to conform"), NULL, 691 #ifdef P1003_1B_SEMAPHORE 692 200112, 693 #else /* P1003_1B_SEMAPHORE */ 694 0, 695 #endif /* P1003_1B_SEMAPHORE */ 696 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 697 sysctl_createv(clog, 0, NULL, NULL, 698 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 699 CTLTYPE_INT, "posix_barriers", 700 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 701 "Barriers option to which the system " 702 "attempts to conform"), 703 /* XXX _POSIX_VERSION */ 704 NULL, _POSIX_BARRIERS, NULL, 0, 705 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 706 sysctl_createv(clog, 0, NULL, NULL, 707 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 708 CTLTYPE_INT, "posix_timers", 709 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 710 "Timers option to which the system " 711 "attempts to conform"), 712 /* XXX _POSIX_VERSION */ 713 NULL, _POSIX_TIMERS, NULL, 0, 714 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 715 sysctl_createv(clog, 0, NULL, NULL, 716 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 717 CTLTYPE_INT, "posix_spin_locks", 718 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 719 "Locks option to which the system attempts " 720 "to conform"), 721 /* XXX _POSIX_VERSION */ 722 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 723 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 724 sysctl_createv(clog, 0, NULL, NULL, 725 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 726 CTLTYPE_INT, "posix_reader_writer_locks", 727 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 728 "Read-Write Locks option to which the " 729 "system attempts to conform"), 730 /* XXX _POSIX_VERSION */ 731 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 732 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 733 sysctl_createv(clog, 0, NULL, NULL, 734 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 735 CTLTYPE_INT, "dump_on_panic", 736 SYSCTL_DESCR("Perform a crash dump on system panic"), 737 NULL, 0, &dumponpanic, 0, 738 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 739 #ifdef DIAGNOSTIC 740 sysctl_createv(clog, 0, NULL, NULL, 741 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 742 CTLTYPE_INT, "panic_now", 743 SYSCTL_DESCR("Trigger a panic"), 744 sysctl_kern_trigger_panic, 0, NULL, 0, 745 CTL_KERN, CTL_CREATE, CTL_EOL); 746 #endif 747 sysctl_createv(clog, 0, NULL, NULL, 748 CTLFLAG_PERMANENT, 749 CTLTYPE_INT, "root_partition", 750 SYSCTL_DESCR("Root partition on the root device"), 751 sysctl_kern_root_partition, 0, NULL, 0, 752 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 753 sysctl_createv(clog, 0, NULL, NULL, 754 CTLFLAG_PERMANENT, 755 CTLTYPE_STRUCT, "drivers", 756 SYSCTL_DESCR("List of all drivers with block and " 757 "character device numbers"), 758 sysctl_kern_drivers, 0, NULL, 0, 759 CTL_KERN, KERN_DRIVERS, CTL_EOL); 760 sysctl_createv(clog, 0, NULL, NULL, 761 CTLFLAG_PERMANENT, 762 CTLTYPE_STRUCT, "file2", 763 SYSCTL_DESCR("System open file table"), 764 sysctl_kern_file2, 0, NULL, 0, 765 CTL_KERN, KERN_FILE2, CTL_EOL); 766 #ifdef VERIFIED_EXEC 767 sysctl_createv(clog, 0, NULL, NULL, 768 CTLFLAG_PERMANENT, 769 CTLTYPE_NODE, "veriexec", 770 SYSCTL_DESCR("Verified Exec"), 771 NULL, 0, NULL, 0, 772 CTL_KERN, KERN_VERIEXEC, CTL_EOL); 773 sysctl_createv(clog, 0, NULL, NULL, 774 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 775 CTLTYPE_INT, "verbose", 776 SYSCTL_DESCR("Verified Exec verbose level"), 777 NULL, 0, &veriexec_verbose, 0, 778 CTL_KERN, KERN_VERIEXEC, VERIEXEC_VERBOSE, 779 CTL_EOL); 780 sysctl_createv(clog, 0, NULL, NULL, 781 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 782 CTLTYPE_INT, "strict", 783 SYSCTL_DESCR("Verified Exec strict level"), 784 sysctl_kern_veriexec, 0, NULL, 0, 785 CTL_KERN, KERN_VERIEXEC, VERIEXEC_STRICT, CTL_EOL); 786 sysctl_createv(clog, 0, NULL, NULL, 787 CTLFLAG_PERMANENT, 788 CTLTYPE_STRING, "algorithms", 789 SYSCTL_DESCR("Verified Exec supported hashing " 790 "algorithms"), 791 sysctl_kern_veriexec, 0, NULL, 0, 792 CTL_KERN, KERN_VERIEXEC, VERIEXEC_ALGORITHMS, CTL_EOL); 793 sysctl_createv(clog, 0, NULL, &veriexec_count_node, 794 CTLFLAG_PERMANENT, 795 CTLTYPE_NODE, "count", 796 SYSCTL_DESCR("Number of fingerprints on device(s)"), 797 NULL, 0, NULL, 0, 798 CTL_KERN, KERN_VERIEXEC, VERIEXEC_COUNT, CTL_EOL); 799 #endif /* VERIFIED_EXEC */ 800 sysctl_createv(clog, 0, NULL, NULL, 801 CTLFLAG_PERMANENT, 802 CTLTYPE_STRUCT, "cp_id", 803 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 804 sysctl_kern_cpid, 0, NULL, 0, 805 CTL_KERN, KERN_CP_ID, CTL_EOL); 806 } 807 808 SYSCTL_SETUP(sysctl_kern_proc_setup, 809 "sysctl kern.proc/proc2/proc_args subtree setup") 810 { 811 812 sysctl_createv(clog, 0, NULL, NULL, 813 CTLFLAG_PERMANENT, 814 CTLTYPE_NODE, "kern", NULL, 815 NULL, 0, NULL, 0, 816 CTL_KERN, CTL_EOL); 817 818 sysctl_createv(clog, 0, NULL, NULL, 819 CTLFLAG_PERMANENT, 820 CTLTYPE_NODE, "proc", 821 SYSCTL_DESCR("System-wide process information"), 822 sysctl_doeproc, 0, NULL, 0, 823 CTL_KERN, KERN_PROC, CTL_EOL); 824 sysctl_createv(clog, 0, NULL, NULL, 825 CTLFLAG_PERMANENT, 826 CTLTYPE_NODE, "proc2", 827 SYSCTL_DESCR("Machine-independent process information"), 828 sysctl_doeproc, 0, NULL, 0, 829 CTL_KERN, KERN_PROC2, CTL_EOL); 830 sysctl_createv(clog, 0, NULL, NULL, 831 CTLFLAG_PERMANENT, 832 CTLTYPE_NODE, "proc_args", 833 SYSCTL_DESCR("Process argument information"), 834 sysctl_kern_proc_args, 0, NULL, 0, 835 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 836 837 /* 838 "nodes" under these: 839 840 KERN_PROC_ALL 841 KERN_PROC_PID pid 842 KERN_PROC_PGRP pgrp 843 KERN_PROC_SESSION sess 844 KERN_PROC_TTY tty 845 KERN_PROC_UID uid 846 KERN_PROC_RUID uid 847 KERN_PROC_GID gid 848 KERN_PROC_RGID gid 849 850 all in all, probably not worth the effort... 851 */ 852 } 853 854 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 855 { 856 u_int u; 857 u_quad_t q; 858 859 sysctl_createv(clog, 0, NULL, NULL, 860 CTLFLAG_PERMANENT, 861 CTLTYPE_NODE, "hw", NULL, 862 NULL, 0, NULL, 0, 863 CTL_HW, CTL_EOL); 864 865 sysctl_createv(clog, 0, NULL, NULL, 866 CTLFLAG_PERMANENT, 867 CTLTYPE_STRING, "machine", 868 SYSCTL_DESCR("Machine class"), 869 NULL, 0, machine, 0, 870 CTL_HW, HW_MACHINE, CTL_EOL); 871 sysctl_createv(clog, 0, NULL, NULL, 872 CTLFLAG_PERMANENT, 873 CTLTYPE_STRING, "model", 874 SYSCTL_DESCR("Machine model"), 875 NULL, 0, cpu_model, 0, 876 CTL_HW, HW_MODEL, CTL_EOL); 877 sysctl_createv(clog, 0, NULL, NULL, 878 CTLFLAG_PERMANENT, 879 CTLTYPE_INT, "ncpu", 880 SYSCTL_DESCR("Number of active CPUs"), 881 sysctl_hw_ncpu, 0, NULL, 0, 882 CTL_HW, HW_NCPU, CTL_EOL); 883 sysctl_createv(clog, 0, NULL, NULL, 884 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 885 CTLTYPE_INT, "byteorder", 886 SYSCTL_DESCR("System byte order"), 887 NULL, BYTE_ORDER, NULL, 0, 888 CTL_HW, HW_BYTEORDER, CTL_EOL); 889 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 890 UINT_MAX : physmem * PAGE_SIZE; 891 sysctl_createv(clog, 0, NULL, NULL, 892 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 893 CTLTYPE_INT, "physmem", 894 SYSCTL_DESCR("Bytes of physical memory"), 895 NULL, u, NULL, 0, 896 CTL_HW, HW_PHYSMEM, CTL_EOL); 897 sysctl_createv(clog, 0, NULL, NULL, 898 CTLFLAG_PERMANENT, 899 CTLTYPE_INT, "usermem", 900 SYSCTL_DESCR("Bytes of non-kernel memory"), 901 sysctl_hw_usermem, 0, NULL, 0, 902 CTL_HW, HW_USERMEM, CTL_EOL); 903 sysctl_createv(clog, 0, NULL, NULL, 904 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 905 CTLTYPE_INT, "pagesize", 906 SYSCTL_DESCR("Software page size"), 907 NULL, PAGE_SIZE, NULL, 0, 908 CTL_HW, HW_PAGESIZE, CTL_EOL); 909 sysctl_createv(clog, 0, NULL, NULL, 910 CTLFLAG_PERMANENT, 911 CTLTYPE_STRING, "machine_arch", 912 SYSCTL_DESCR("Machine CPU class"), 913 NULL, 0, machine_arch, 0, 914 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 915 sysctl_createv(clog, 0, NULL, NULL, 916 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 917 CTLTYPE_INT, "alignbytes", 918 SYSCTL_DESCR("Alignment constraint for all possible " 919 "data types"), 920 NULL, ALIGNBYTES, NULL, 0, 921 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 922 sysctl_createv(clog, 0, NULL, NULL, 923 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 924 CTLTYPE_STRING, "cnmagic", 925 SYSCTL_DESCR("Console magic key sequence"), 926 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 927 CTL_HW, HW_CNMAGIC, CTL_EOL); 928 q = (u_quad_t)physmem * PAGE_SIZE; 929 sysctl_createv(clog, 0, NULL, NULL, 930 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 931 CTLTYPE_QUAD, "physmem64", 932 SYSCTL_DESCR("Bytes of physical memory"), 933 NULL, q, NULL, 0, 934 CTL_HW, HW_PHYSMEM64, CTL_EOL); 935 sysctl_createv(clog, 0, NULL, NULL, 936 CTLFLAG_PERMANENT, 937 CTLTYPE_QUAD, "usermem64", 938 SYSCTL_DESCR("Bytes of non-kernel memory"), 939 sysctl_hw_usermem, 0, NULL, 0, 940 CTL_HW, HW_USERMEM64, CTL_EOL); 941 } 942 943 #ifdef DEBUG 944 /* 945 * Debugging related system variables. 946 */ 947 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 948 struct ctldebug debug5, debug6, debug7, debug8, debug9; 949 struct ctldebug debug10, debug11, debug12, debug13, debug14; 950 struct ctldebug debug15, debug16, debug17, debug18, debug19; 951 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 952 &debug0, &debug1, &debug2, &debug3, &debug4, 953 &debug5, &debug6, &debug7, &debug8, &debug9, 954 &debug10, &debug11, &debug12, &debug13, &debug14, 955 &debug15, &debug16, &debug17, &debug18, &debug19, 956 }; 957 958 /* 959 * this setup routine is a replacement for debug_sysctl() 960 * 961 * note that it creates several nodes per defined debug variable 962 */ 963 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 964 { 965 struct ctldebug *cdp; 966 char nodename[20]; 967 int i; 968 969 /* 970 * two ways here: 971 * 972 * the "old" way (debug.name -> value) which was emulated by 973 * the sysctl(8) binary 974 * 975 * the new way, which the sysctl(8) binary was actually using 976 977 node debug 978 node debug.0 979 string debug.0.name 980 int debug.0.value 981 int debug.name 982 983 */ 984 985 sysctl_createv(clog, 0, NULL, NULL, 986 CTLFLAG_PERMANENT, 987 CTLTYPE_NODE, "debug", NULL, 988 NULL, 0, NULL, 0, 989 CTL_DEBUG, CTL_EOL); 990 991 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 992 cdp = debugvars[i]; 993 if (cdp->debugname == NULL || cdp->debugvar == NULL) 994 continue; 995 996 snprintf(nodename, sizeof(nodename), "debug%d", i); 997 sysctl_createv(clog, 0, NULL, NULL, 998 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 999 CTLTYPE_NODE, nodename, NULL, 1000 NULL, 0, NULL, 0, 1001 CTL_DEBUG, i, CTL_EOL); 1002 sysctl_createv(clog, 0, NULL, NULL, 1003 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1004 CTLTYPE_STRING, "name", NULL, 1005 /*XXXUNCONST*/ 1006 NULL, 0, __UNCONST(cdp->debugname), 0, 1007 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1008 sysctl_createv(clog, 0, NULL, NULL, 1009 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1010 CTLTYPE_INT, "value", NULL, 1011 NULL, 0, cdp->debugvar, 0, 1012 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1013 sysctl_createv(clog, 0, NULL, NULL, 1014 CTLFLAG_PERMANENT, 1015 CTLTYPE_INT, cdp->debugname, NULL, 1016 NULL, 0, cdp->debugvar, 0, 1017 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1018 } 1019 } 1020 #endif /* DEBUG */ 1021 1022 SYSCTL_SETUP(sysctl_security_setup, "sysctl security subtree setup") 1023 { 1024 const struct sysctlnode *rnode = NULL; 1025 1026 sysctl_createv(clog, 0, NULL, &rnode, 1027 CTLFLAG_PERMANENT, 1028 CTLTYPE_NODE, "security", NULL, 1029 NULL, 0, NULL, 0, 1030 CTL_SECURITY, CTL_EOL); 1031 1032 sysctl_createv(clog, 0, &rnode, NULL, 1033 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1034 CTLTYPE_INT, "curtain", 1035 SYSCTL_DESCR("Curtain information about objects" 1036 " to users not owning them."), 1037 NULL, 0, &security_curtain, 0, 1038 CTL_CREATE, CTL_EOL); 1039 1040 sysctl_createv(clog, 0, &rnode, &rnode, 1041 CTLFLAG_PERMANENT, 1042 CTLTYPE_NODE, "setid_core", 1043 SYSCTL_DESCR("Set-id processes' coredump settings."), 1044 NULL, 0, NULL, 0, 1045 CTL_CREATE, CTL_EOL); 1046 sysctl_createv(clog, 0, &rnode, NULL, 1047 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1048 CTLTYPE_INT, "dump", 1049 SYSCTL_DESCR("Allow set-id processes to dump core."), 1050 sysctl_security_setidcore, 0, &security_setidcore_dump, 1051 sizeof(security_setidcore_dump), 1052 CTL_CREATE, CTL_EOL); 1053 sysctl_createv(clog, 0, &rnode, NULL, 1054 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1055 CTLTYPE_STRING, "path", 1056 SYSCTL_DESCR("Path pattern for set-id coredumps."), 1057 sysctl_security_setidcorename, 0, 1058 &security_setidcore_path, 1059 sizeof(security_setidcore_path), 1060 CTL_CREATE, CTL_EOL); 1061 sysctl_createv(clog, 0, &rnode, NULL, 1062 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1063 CTLTYPE_INT, "owner", 1064 SYSCTL_DESCR("Owner id for set-id processes' cores."), 1065 sysctl_security_setidcore, 0, &security_setidcore_owner, 1066 0, 1067 CTL_CREATE, CTL_EOL); 1068 sysctl_createv(clog, 0, &rnode, NULL, 1069 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1070 CTLTYPE_INT, "group", 1071 SYSCTL_DESCR("Group id for set-id processes' cores."), 1072 sysctl_security_setidcore, 0, &security_setidcore_group, 1073 0, 1074 CTL_CREATE, CTL_EOL); 1075 sysctl_createv(clog, 0, &rnode, NULL, 1076 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1077 CTLTYPE_INT, "mode", 1078 SYSCTL_DESCR("Mode for set-id processes' cores."), 1079 sysctl_security_setidcore, 0, &security_setidcore_mode, 1080 0, 1081 CTL_CREATE, CTL_EOL); 1082 } 1083 1084 /* 1085 * ******************************************************************** 1086 * section 2: private node-specific helper routines. 1087 * ******************************************************************** 1088 */ 1089 1090 #ifdef DIAGNOSTIC 1091 static int 1092 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1093 { 1094 int newtrig, error; 1095 struct sysctlnode node; 1096 1097 newtrig = 0; 1098 node = *rnode; 1099 node.sysctl_data = &newtrig; 1100 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1101 if (error || newp == NULL) 1102 return (error); 1103 1104 if (newtrig != 0) 1105 panic("Panic triggered"); 1106 1107 return (error); 1108 } 1109 #endif 1110 1111 /* 1112 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1113 * new value is lower than desiredvnodes and then calls reinit 1114 * routines that needs to adjust to the new value. 1115 */ 1116 static int 1117 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1118 { 1119 int error, new_vnodes, old_vnodes; 1120 struct sysctlnode node; 1121 1122 new_vnodes = desiredvnodes; 1123 node = *rnode; 1124 node.sysctl_data = &new_vnodes; 1125 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1126 if (error || newp == NULL) 1127 return (error); 1128 1129 old_vnodes = desiredvnodes; 1130 desiredvnodes = new_vnodes; 1131 if (new_vnodes < old_vnodes) { 1132 error = vfs_drainvnodes(new_vnodes, l); 1133 if (error) { 1134 desiredvnodes = old_vnodes; 1135 return (error); 1136 } 1137 } 1138 vfs_reinit(); 1139 nchreinit(); 1140 1141 return (0); 1142 } 1143 1144 /* 1145 * sysctl helper routine for rtc_offset - set time after changes 1146 */ 1147 static int 1148 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1149 { 1150 struct timespec ts, delta; 1151 int error, new_rtc_offset; 1152 struct sysctlnode node; 1153 1154 new_rtc_offset = rtc_offset; 1155 node = *rnode; 1156 node.sysctl_data = &new_rtc_offset; 1157 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1158 if (error || newp == NULL) 1159 return (error); 1160 1161 if (securelevel > 0) 1162 return (EPERM); 1163 if (rtc_offset == new_rtc_offset) 1164 return (0); 1165 1166 /* if we change the offset, adjust the time */ 1167 nanotime(&ts); 1168 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1169 delta.tv_nsec = 0; 1170 timespecadd(&ts, &delta, &ts); 1171 rtc_offset = new_rtc_offset; 1172 settime(l->l_proc, &ts); 1173 1174 return (0); 1175 } 1176 1177 /* 1178 * sysctl helper routine for kern.maxproc. ensures that the new 1179 * values are not too low or too high. 1180 */ 1181 static int 1182 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1183 { 1184 int error, nmaxproc; 1185 struct sysctlnode node; 1186 1187 nmaxproc = maxproc; 1188 node = *rnode; 1189 node.sysctl_data = &nmaxproc; 1190 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1191 if (error || newp == NULL) 1192 return (error); 1193 1194 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1195 return (EINVAL); 1196 #ifdef __HAVE_CPU_MAXPROC 1197 if (nmaxproc > cpu_maxproc()) 1198 return (EINVAL); 1199 #endif 1200 maxproc = nmaxproc; 1201 1202 return (0); 1203 } 1204 1205 /* 1206 * sysctl helper function for kern.hostid. the hostid is a long, but 1207 * we export it as an int, so we need to give it a little help. 1208 */ 1209 static int 1210 sysctl_kern_hostid(SYSCTLFN_ARGS) 1211 { 1212 int error, inthostid; 1213 struct sysctlnode node; 1214 1215 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1216 node = *rnode; 1217 node.sysctl_data = &inthostid; 1218 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1219 if (error || newp == NULL) 1220 return (error); 1221 1222 hostid = (unsigned)inthostid; 1223 1224 return (0); 1225 } 1226 1227 /* 1228 * sysctl helper function for kern.hostname and kern.domainnname. 1229 * resets the relevant recorded length when the underlying name is 1230 * changed. 1231 */ 1232 static int 1233 sysctl_setlen(SYSCTLFN_ARGS) 1234 { 1235 int error; 1236 1237 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1238 if (error || newp == NULL) 1239 return (error); 1240 1241 switch (rnode->sysctl_num) { 1242 case KERN_HOSTNAME: 1243 hostnamelen = strlen((const char*)rnode->sysctl_data); 1244 break; 1245 case KERN_DOMAINNAME: 1246 domainnamelen = strlen((const char*)rnode->sysctl_data); 1247 break; 1248 } 1249 1250 return (0); 1251 } 1252 1253 /* 1254 * sysctl helper routine for kern.clockrate. assembles a struct on 1255 * the fly to be returned to the caller. 1256 */ 1257 static int 1258 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1259 { 1260 struct clockinfo clkinfo; 1261 struct sysctlnode node; 1262 1263 clkinfo.tick = tick; 1264 clkinfo.tickadj = tickadj; 1265 clkinfo.hz = hz; 1266 clkinfo.profhz = profhz; 1267 clkinfo.stathz = stathz ? stathz : hz; 1268 1269 node = *rnode; 1270 node.sysctl_data = &clkinfo; 1271 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1272 } 1273 1274 1275 /* 1276 * sysctl helper routine for kern.file pseudo-subtree. 1277 */ 1278 static int 1279 sysctl_kern_file(SYSCTLFN_ARGS) 1280 { 1281 int error; 1282 size_t buflen; 1283 struct file *fp; 1284 char *start, *where; 1285 1286 start = where = oldp; 1287 buflen = *oldlenp; 1288 if (where == NULL) { 1289 /* 1290 * overestimate by 10 files 1291 */ 1292 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1293 return (0); 1294 } 1295 1296 /* 1297 * first copyout filehead 1298 */ 1299 if (buflen < sizeof(filehead)) { 1300 *oldlenp = 0; 1301 return (0); 1302 } 1303 error = copyout(&filehead, where, sizeof(filehead)); 1304 if (error) 1305 return (error); 1306 buflen -= sizeof(filehead); 1307 where += sizeof(filehead); 1308 1309 /* 1310 * followed by an array of file structures 1311 */ 1312 LIST_FOREACH(fp, &filehead, f_list) { 1313 if (CURTAIN(l->l_proc->p_ucred->cr_uid, fp->f_cred->cr_uid)) 1314 continue; 1315 if (buflen < sizeof(struct file)) { 1316 *oldlenp = where - start; 1317 return (ENOMEM); 1318 } 1319 error = copyout(fp, where, sizeof(struct file)); 1320 if (error) 1321 return (error); 1322 buflen -= sizeof(struct file); 1323 where += sizeof(struct file); 1324 } 1325 *oldlenp = where - start; 1326 return (0); 1327 } 1328 1329 /* 1330 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1331 * asserts that the assigned value is in the correct range. 1332 */ 1333 static int 1334 sysctl_kern_autonice(SYSCTLFN_ARGS) 1335 { 1336 int error, t = 0; 1337 struct sysctlnode node; 1338 1339 node = *rnode; 1340 t = *(int*)node.sysctl_data; 1341 node.sysctl_data = &t; 1342 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1343 if (error || newp == NULL) 1344 return (error); 1345 1346 switch (node.sysctl_num) { 1347 case KERN_AUTONICETIME: 1348 if (t >= 0) 1349 autonicetime = t; 1350 break; 1351 case KERN_AUTONICEVAL: 1352 if (t < PRIO_MIN) 1353 t = PRIO_MIN; 1354 else if (t > PRIO_MAX) 1355 t = PRIO_MAX; 1356 autoniceval = t; 1357 break; 1358 } 1359 1360 return (0); 1361 } 1362 1363 /* 1364 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1365 * former it merely checks the message buffer is set up. for the latter, 1366 * it also copies out the data if necessary. 1367 */ 1368 static int 1369 sysctl_msgbuf(SYSCTLFN_ARGS) 1370 { 1371 char *where = oldp; 1372 size_t len, maxlen; 1373 long beg, end; 1374 int error; 1375 1376 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1377 msgbufenabled = 0; 1378 return (ENXIO); 1379 } 1380 1381 switch (rnode->sysctl_num) { 1382 case KERN_MSGBUFSIZE: { 1383 struct sysctlnode node = *rnode; 1384 int msg_bufs = (int)msgbufp->msg_bufs; 1385 node.sysctl_data = &msg_bufs; 1386 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1387 } 1388 case KERN_MSGBUF: 1389 break; 1390 default: 1391 return (EOPNOTSUPP); 1392 } 1393 1394 if (newp != NULL) 1395 return (EPERM); 1396 1397 if (oldp == NULL) { 1398 /* always return full buffer size */ 1399 *oldlenp = msgbufp->msg_bufs; 1400 return (0); 1401 } 1402 1403 error = 0; 1404 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1405 1406 /* 1407 * First, copy from the write pointer to the end of 1408 * message buffer. 1409 */ 1410 beg = msgbufp->msg_bufx; 1411 end = msgbufp->msg_bufs; 1412 while (maxlen > 0) { 1413 len = MIN(end - beg, maxlen); 1414 if (len == 0) 1415 break; 1416 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1417 if (error) 1418 break; 1419 where += len; 1420 maxlen -= len; 1421 1422 /* 1423 * ... then, copy from the beginning of message buffer to 1424 * the write pointer. 1425 */ 1426 beg = 0; 1427 end = msgbufp->msg_bufx; 1428 } 1429 1430 return (error); 1431 } 1432 1433 /* 1434 * sysctl helper routine for kern.defcorename. in the case of a new 1435 * string being assigned, check that it's not a zero-length string. 1436 * (XXX the check in -current doesn't work, but do we really care?) 1437 */ 1438 static int 1439 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1440 { 1441 int error; 1442 char *newcorename; 1443 struct sysctlnode node; 1444 1445 newcorename = PNBUF_GET(); 1446 node = *rnode; 1447 node.sysctl_data = &newcorename[0]; 1448 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1449 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1450 if (error || newp == NULL) { 1451 goto done; 1452 } 1453 1454 /* 1455 * when sysctl_lookup() deals with a string, it's guaranteed 1456 * to come back nul terminated. so there. :) 1457 */ 1458 if (strlen(newcorename) == 0) { 1459 error = EINVAL; 1460 } else { 1461 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1462 error = 0; 1463 } 1464 done: 1465 PNBUF_PUT(newcorename); 1466 return error; 1467 } 1468 1469 /* 1470 * sysctl helper routine for kern.cp_time node. adds up cpu time 1471 * across all cpus. 1472 */ 1473 static int 1474 sysctl_kern_cptime(SYSCTLFN_ARGS) 1475 { 1476 struct sysctlnode node = *rnode; 1477 1478 #ifndef MULTIPROCESSOR 1479 1480 if (namelen == 1) { 1481 if (name[0] != 0) 1482 return (ENOENT); 1483 /* 1484 * you're allowed to ask for the zero'th processor 1485 */ 1486 name++; 1487 namelen--; 1488 } 1489 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1490 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1491 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1492 1493 #else /* MULTIPROCESSOR */ 1494 1495 uint64_t *cp_time = NULL; 1496 int error, n = sysctl_ncpus(), i; 1497 struct cpu_info *ci; 1498 CPU_INFO_ITERATOR cii; 1499 1500 /* 1501 * if you specifically pass a buffer that is the size of the 1502 * sum, or if you are probing for the size, you get the "sum" 1503 * of cp_time (and the size thereof) across all processors. 1504 * 1505 * alternately, you can pass an additional mib number and get 1506 * cp_time for that particular processor. 1507 */ 1508 switch (namelen) { 1509 case 0: 1510 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1511 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1512 n = -1; /* SUM */ 1513 } 1514 else { 1515 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1516 n = -2; /* ALL */ 1517 } 1518 break; 1519 case 1: 1520 if (name[0] < 0 || name[0] >= n) 1521 return (ENOENT); /* ENOSUCHPROCESSOR */ 1522 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1523 n = name[0]; 1524 /* 1525 * adjust these so that sysctl_lookup() will be happy 1526 */ 1527 name++; 1528 namelen--; 1529 break; 1530 default: 1531 return (EINVAL); 1532 } 1533 1534 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1535 if (cp_time == NULL) 1536 return (ENOMEM); 1537 node.sysctl_data = cp_time; 1538 memset(cp_time, 0, node.sysctl_size); 1539 1540 for (CPU_INFO_FOREACH(cii, ci)) { 1541 if (n <= 0) 1542 for (i = 0; i < CPUSTATES; i++) 1543 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1544 /* 1545 * if a specific processor was requested and we just 1546 * did it, we're done here 1547 */ 1548 if (n == 0) 1549 break; 1550 /* 1551 * if doing "all", skip to next cp_time set for next processor 1552 */ 1553 if (n == -2) 1554 cp_time += CPUSTATES; 1555 /* 1556 * if we're doing a specific processor, we're one 1557 * processor closer 1558 */ 1559 if (n > 0) 1560 n--; 1561 } 1562 1563 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1564 free(node.sysctl_data, M_TEMP); 1565 return (error); 1566 1567 #endif /* MULTIPROCESSOR */ 1568 } 1569 1570 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1571 /* 1572 * sysctl helper routine for kern.sysvipc_info subtree. 1573 */ 1574 1575 #define FILL_PERM(src, dst) do { \ 1576 (dst)._key = (src)._key; \ 1577 (dst).uid = (src).uid; \ 1578 (dst).gid = (src).gid; \ 1579 (dst).cuid = (src).cuid; \ 1580 (dst).cgid = (src).cgid; \ 1581 (dst).mode = (src).mode; \ 1582 (dst)._seq = (src)._seq; \ 1583 } while (/*CONSTCOND*/ 0); 1584 #define FILL_MSG(src, dst) do { \ 1585 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1586 (dst).msg_qnum = (src).msg_qnum; \ 1587 (dst).msg_qbytes = (src).msg_qbytes; \ 1588 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1589 (dst).msg_lspid = (src).msg_lspid; \ 1590 (dst).msg_lrpid = (src).msg_lrpid; \ 1591 (dst).msg_stime = (src).msg_stime; \ 1592 (dst).msg_rtime = (src).msg_rtime; \ 1593 (dst).msg_ctime = (src).msg_ctime; \ 1594 } while (/*CONSTCOND*/ 0) 1595 #define FILL_SEM(src, dst) do { \ 1596 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1597 (dst).sem_nsems = (src).sem_nsems; \ 1598 (dst).sem_otime = (src).sem_otime; \ 1599 (dst).sem_ctime = (src).sem_ctime; \ 1600 } while (/*CONSTCOND*/ 0) 1601 #define FILL_SHM(src, dst) do { \ 1602 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1603 (dst).shm_segsz = (src).shm_segsz; \ 1604 (dst).shm_lpid = (src).shm_lpid; \ 1605 (dst).shm_cpid = (src).shm_cpid; \ 1606 (dst).shm_atime = (src).shm_atime; \ 1607 (dst).shm_dtime = (src).shm_dtime; \ 1608 (dst).shm_ctime = (src).shm_ctime; \ 1609 (dst).shm_nattch = (src).shm_nattch; \ 1610 } while (/*CONSTCOND*/ 0) 1611 1612 static int 1613 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1614 { 1615 void *where = oldp; 1616 size_t *sizep = oldlenp; 1617 #ifdef SYSVMSG 1618 struct msg_sysctl_info *msgsi = NULL; 1619 #endif 1620 #ifdef SYSVSEM 1621 struct sem_sysctl_info *semsi = NULL; 1622 #endif 1623 #ifdef SYSVSHM 1624 struct shm_sysctl_info *shmsi = NULL; 1625 #endif 1626 size_t infosize, dssize, tsize, buflen; 1627 void *bf = NULL; 1628 char *start; 1629 int32_t nds; 1630 int i, error, ret; 1631 1632 if (namelen != 1) 1633 return (EINVAL); 1634 1635 start = where; 1636 buflen = *sizep; 1637 1638 switch (*name) { 1639 case KERN_SYSVIPC_MSG_INFO: 1640 #ifdef SYSVMSG 1641 infosize = sizeof(msgsi->msginfo); 1642 nds = msginfo.msgmni; 1643 dssize = sizeof(msgsi->msgids[0]); 1644 break; 1645 #else 1646 return (EINVAL); 1647 #endif 1648 case KERN_SYSVIPC_SEM_INFO: 1649 #ifdef SYSVSEM 1650 infosize = sizeof(semsi->seminfo); 1651 nds = seminfo.semmni; 1652 dssize = sizeof(semsi->semids[0]); 1653 break; 1654 #else 1655 return (EINVAL); 1656 #endif 1657 case KERN_SYSVIPC_SHM_INFO: 1658 #ifdef SYSVSHM 1659 infosize = sizeof(shmsi->shminfo); 1660 nds = shminfo.shmmni; 1661 dssize = sizeof(shmsi->shmids[0]); 1662 break; 1663 #else 1664 return (EINVAL); 1665 #endif 1666 default: 1667 return (EINVAL); 1668 } 1669 /* 1670 * Round infosize to 64 bit boundary if requesting more than just 1671 * the info structure or getting the total data size. 1672 */ 1673 if (where == NULL || *sizep > infosize) 1674 infosize = ((infosize + 7) / 8) * 8; 1675 tsize = infosize + nds * dssize; 1676 1677 /* Return just the total size required. */ 1678 if (where == NULL) { 1679 *sizep = tsize; 1680 return (0); 1681 } 1682 1683 /* Not enough room for even the info struct. */ 1684 if (buflen < infosize) { 1685 *sizep = 0; 1686 return (ENOMEM); 1687 } 1688 bf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1689 memset(bf, 0, min(tsize, buflen)); 1690 1691 switch (*name) { 1692 #ifdef SYSVMSG 1693 case KERN_SYSVIPC_MSG_INFO: 1694 msgsi = (struct msg_sysctl_info *)bf; 1695 msgsi->msginfo = msginfo; 1696 break; 1697 #endif 1698 #ifdef SYSVSEM 1699 case KERN_SYSVIPC_SEM_INFO: 1700 semsi = (struct sem_sysctl_info *)bf; 1701 semsi->seminfo = seminfo; 1702 break; 1703 #endif 1704 #ifdef SYSVSHM 1705 case KERN_SYSVIPC_SHM_INFO: 1706 shmsi = (struct shm_sysctl_info *)bf; 1707 shmsi->shminfo = shminfo; 1708 break; 1709 #endif 1710 } 1711 buflen -= infosize; 1712 1713 ret = 0; 1714 if (buflen > 0) { 1715 /* Fill in the IPC data structures. */ 1716 for (i = 0; i < nds; i++) { 1717 if (buflen < dssize) { 1718 ret = ENOMEM; 1719 break; 1720 } 1721 switch (*name) { 1722 #ifdef SYSVMSG 1723 case KERN_SYSVIPC_MSG_INFO: 1724 FILL_MSG(msqids[i], msgsi->msgids[i]); 1725 break; 1726 #endif 1727 #ifdef SYSVSEM 1728 case KERN_SYSVIPC_SEM_INFO: 1729 FILL_SEM(sema[i], semsi->semids[i]); 1730 break; 1731 #endif 1732 #ifdef SYSVSHM 1733 case KERN_SYSVIPC_SHM_INFO: 1734 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1735 break; 1736 #endif 1737 } 1738 buflen -= dssize; 1739 } 1740 } 1741 *sizep -= buflen; 1742 error = copyout(bf, start, *sizep); 1743 /* If copyout succeeded, use return code set earlier. */ 1744 if (error == 0) 1745 error = ret; 1746 if (bf) 1747 free(bf, M_TEMP); 1748 return (error); 1749 } 1750 1751 #undef FILL_PERM 1752 #undef FILL_MSG 1753 #undef FILL_SEM 1754 #undef FILL_SHM 1755 1756 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1757 1758 #if NPTY > 0 1759 /* 1760 * sysctl helper routine for kern.maxptys. ensures that any new value 1761 * is acceptable to the pty subsystem. 1762 */ 1763 static int 1764 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1765 { 1766 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1767 int error, xmax; 1768 struct sysctlnode node; 1769 1770 /* get current value of maxptys */ 1771 xmax = pty_maxptys(0, 0); 1772 1773 node = *rnode; 1774 node.sysctl_data = &xmax; 1775 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1776 if (error || newp == NULL) 1777 return (error); 1778 1779 if (xmax != pty_maxptys(xmax, 1)) 1780 return (EINVAL); 1781 1782 return (0); 1783 } 1784 #endif /* NPTY > 0 */ 1785 1786 /* 1787 * sysctl helper routine for kern.sbmax. basically just ensures that 1788 * any new value is not too small. 1789 */ 1790 static int 1791 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1792 { 1793 int error, new_sbmax; 1794 struct sysctlnode node; 1795 1796 new_sbmax = sb_max; 1797 node = *rnode; 1798 node.sysctl_data = &new_sbmax; 1799 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1800 if (error || newp == NULL) 1801 return (error); 1802 1803 error = sb_max_set(new_sbmax); 1804 1805 return (error); 1806 } 1807 1808 /* 1809 * sysctl helper routine for kern.urandom node. picks a random number 1810 * for you. 1811 */ 1812 static int 1813 sysctl_kern_urnd(SYSCTLFN_ARGS) 1814 { 1815 #if NRND > 0 1816 int v; 1817 1818 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1819 struct sysctlnode node = *rnode; 1820 node.sysctl_data = &v; 1821 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1822 } 1823 else 1824 return (EIO); /*XXX*/ 1825 #else 1826 return (EOPNOTSUPP); 1827 #endif 1828 } 1829 1830 /* 1831 * sysctl helper routine to do kern.lwp.* work. 1832 */ 1833 static int 1834 sysctl_kern_lwp(SYSCTLFN_ARGS) 1835 { 1836 struct kinfo_lwp klwp; 1837 struct proc *p; 1838 struct lwp *l2; 1839 char *where, *dp; 1840 int pid, elem_size, elem_count; 1841 int buflen, needed, error; 1842 1843 if (namelen == 1 && name[0] == CTL_QUERY) 1844 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1845 1846 dp = where = oldp; 1847 buflen = where != NULL ? *oldlenp : 0; 1848 error = needed = 0; 1849 1850 if (newp != NULL || namelen != 3) 1851 return (EINVAL); 1852 pid = name[0]; 1853 elem_size = name[1]; 1854 elem_count = name[2]; 1855 1856 p = pfind(pid); 1857 if (p == NULL) 1858 return (ESRCH); 1859 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1860 if (buflen >= elem_size && elem_count > 0) { 1861 fill_lwp(l2, &klwp); 1862 /* 1863 * Copy out elem_size, but not larger than 1864 * the size of a struct kinfo_proc2. 1865 */ 1866 error = copyout(&klwp, dp, 1867 min(sizeof(klwp), elem_size)); 1868 if (error) 1869 goto cleanup; 1870 dp += elem_size; 1871 buflen -= elem_size; 1872 elem_count--; 1873 } 1874 needed += elem_size; 1875 } 1876 1877 if (where != NULL) { 1878 *oldlenp = dp - where; 1879 if (needed > *oldlenp) 1880 return (ENOMEM); 1881 } else { 1882 needed += KERN_LWPSLOP; 1883 *oldlenp = needed; 1884 } 1885 return (0); 1886 cleanup: 1887 return (error); 1888 } 1889 1890 /* 1891 * sysctl helper routine for kern.forkfsleep node. ensures that the 1892 * given value is not too large or two small, and is at least one 1893 * timer tick if not zero. 1894 */ 1895 static int 1896 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1897 { 1898 /* userland sees value in ms, internally is in ticks */ 1899 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1900 int error, timo, lsleep; 1901 struct sysctlnode node; 1902 1903 lsleep = forkfsleep * 1000 / hz; 1904 node = *rnode; 1905 node.sysctl_data = &lsleep; 1906 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1907 if (error || newp == NULL) 1908 return (error); 1909 1910 /* refuse negative values, and overly 'long time' */ 1911 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1912 return (EINVAL); 1913 1914 timo = mstohz(lsleep); 1915 1916 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1917 if (lsleep != 0 && timo == 0) 1918 forkfsleep = 1; 1919 else 1920 forkfsleep = timo; 1921 1922 return (0); 1923 } 1924 1925 /* 1926 * sysctl helper routine for kern.root_partition 1927 */ 1928 static int 1929 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1930 { 1931 int rootpart = DISKPART(rootdev); 1932 struct sysctlnode node = *rnode; 1933 1934 node.sysctl_data = &rootpart; 1935 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1936 } 1937 1938 /* 1939 * sysctl helper function for kern.drivers 1940 */ 1941 static int 1942 sysctl_kern_drivers(SYSCTLFN_ARGS) 1943 { 1944 int error; 1945 size_t buflen; 1946 struct kinfo_drivers kd; 1947 char *start, *where; 1948 const char *dname; 1949 int i; 1950 extern struct devsw_conv *devsw_conv; 1951 extern int max_devsw_convs; 1952 1953 if (newp != NULL || namelen != 0) 1954 return (EINVAL); 1955 1956 start = where = oldp; 1957 buflen = *oldlenp; 1958 if (where == NULL) { 1959 *oldlenp = max_devsw_convs * sizeof kd; 1960 return 0; 1961 } 1962 1963 /* 1964 * An array of kinfo_drivers structures 1965 */ 1966 error = 0; 1967 for (i = 0; i < max_devsw_convs; i++) { 1968 dname = devsw_conv[i].d_name; 1969 if (dname == NULL) 1970 continue; 1971 if (buflen < sizeof kd) { 1972 error = ENOMEM; 1973 break; 1974 } 1975 memset(&kd, 0, sizeof(kd)); 1976 kd.d_bmajor = devsw_conv[i].d_bmajor; 1977 kd.d_cmajor = devsw_conv[i].d_cmajor; 1978 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1979 error = copyout(&kd, where, sizeof kd); 1980 if (error != 0) 1981 break; 1982 buflen -= sizeof kd; 1983 where += sizeof kd; 1984 } 1985 *oldlenp = where - start; 1986 return error; 1987 } 1988 1989 /* 1990 * sysctl helper function for kern.file2 1991 */ 1992 static int 1993 sysctl_kern_file2(SYSCTLFN_ARGS) 1994 { 1995 struct proc *p; 1996 struct file *fp; 1997 struct filedesc *fd; 1998 struct kinfo_file kf; 1999 char *dp; 2000 u_int i, op; 2001 size_t len, needed, elem_size, out_size; 2002 int error, arg, elem_count; 2003 2004 if (namelen == 1 && name[0] == CTL_QUERY) 2005 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2006 2007 if (namelen != 4) 2008 return (EINVAL); 2009 2010 error = 0; 2011 dp = oldp; 2012 len = (oldp != NULL) ? *oldlenp : 0; 2013 op = name[0]; 2014 arg = name[1]; 2015 elem_size = name[2]; 2016 elem_count = name[3]; 2017 out_size = MIN(sizeof(kf), elem_size); 2018 needed = 0; 2019 2020 if (elem_size < 1 || elem_count < 0) 2021 return (EINVAL); 2022 2023 switch (op) { 2024 case KERN_FILE_BYFILE: 2025 /* 2026 * doesn't use arg so it must be zero 2027 */ 2028 if (arg != 0) 2029 return (EINVAL); 2030 LIST_FOREACH(fp, &filehead, f_list) { 2031 if (CURTAIN(l->l_proc->p_ucred->cr_uid, 2032 fp->f_cred->cr_uid)) 2033 continue; 2034 if (len >= elem_size && elem_count > 0) { 2035 fill_file(&kf, fp, NULL, 0); 2036 error = copyout(&kf, dp, out_size); 2037 if (error) 2038 break; 2039 dp += elem_size; 2040 len -= elem_size; 2041 } 2042 if (elem_count > 0) { 2043 needed += elem_size; 2044 if (elem_count != INT_MAX) 2045 elem_count--; 2046 } 2047 } 2048 break; 2049 case KERN_FILE_BYPID: 2050 if (arg < -1) 2051 /* -1 means all processes */ 2052 return (EINVAL); 2053 proclist_lock_read(); 2054 PROCLIST_FOREACH(p, &allproc) { 2055 if (p->p_stat == SIDL) 2056 /* skip embryonic processes */ 2057 continue; 2058 if (CURTAIN(l->l_proc->p_ucred->cr_uid, 2059 p->p_ucred->cr_uid)) 2060 continue; 2061 if (arg > 0 && p->p_pid != arg) 2062 /* pick only the one we want */ 2063 /* XXX want 0 to mean "kernel files" */ 2064 continue; 2065 fd = p->p_fd; 2066 for (i = 0; i < fd->fd_nfiles; i++) { 2067 fp = fd->fd_ofiles[i]; 2068 if (fp == NULL || !FILE_IS_USABLE(fp)) 2069 continue; 2070 if (len >= elem_size && elem_count > 0) { 2071 fill_file(&kf, fd->fd_ofiles[i], 2072 p, i); 2073 error = copyout(&kf, dp, out_size); 2074 if (error) 2075 break; 2076 dp += elem_size; 2077 len -= elem_size; 2078 } 2079 if (elem_count > 0) { 2080 needed += elem_size; 2081 if (elem_count != INT_MAX) 2082 elem_count--; 2083 } 2084 } 2085 } 2086 proclist_unlock_read(); 2087 break; 2088 default: 2089 return (EINVAL); 2090 } 2091 2092 if (oldp == NULL) 2093 needed += KERN_FILESLOP * elem_size; 2094 *oldlenp = needed; 2095 2096 return (error); 2097 } 2098 2099 static void 2100 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2101 { 2102 2103 memset(kp, 0, sizeof(*kp)); 2104 2105 kp->ki_fileaddr = PTRTOUINT64(fp); 2106 kp->ki_flag = fp->f_flag; 2107 kp->ki_iflags = fp->f_iflags; 2108 kp->ki_ftype = fp->f_type; 2109 kp->ki_count = fp->f_count; 2110 kp->ki_msgcount = fp->f_msgcount; 2111 kp->ki_usecount = fp->f_usecount; 2112 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2113 kp->ki_fuid = fp->f_cred->cr_uid; 2114 kp->ki_fgid = fp->f_cred->cr_gid; 2115 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2116 kp->ki_foffset = fp->f_offset; 2117 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2118 2119 /* vnode information to glue this file to something */ 2120 if (fp->f_type == DTYPE_VNODE) { 2121 struct vnode *vp = (struct vnode *)fp->f_data; 2122 2123 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2124 kp->ki_vsize = vp->v_size; 2125 kp->ki_vtype = vp->v_type; 2126 kp->ki_vtag = vp->v_tag; 2127 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2128 } 2129 2130 /* process information when retrieved via KERN_FILE_BYPID */ 2131 if (p) { 2132 kp->ki_pid = p->p_pid; 2133 kp->ki_fd = i; 2134 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2135 } 2136 } 2137 2138 static int 2139 sysctl_doeproc(SYSCTLFN_ARGS) 2140 { 2141 struct eproc eproc; 2142 struct kinfo_proc2 kproc2; 2143 struct kinfo_proc *dp; 2144 struct proc *p; 2145 const struct proclist_desc *pd; 2146 char *where, *dp2; 2147 int type, op, arg; 2148 u_int elem_size, elem_count; 2149 size_t buflen, needed; 2150 int error; 2151 2152 if (namelen == 1 && name[0] == CTL_QUERY) 2153 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2154 2155 dp = oldp; 2156 dp2 = where = oldp; 2157 buflen = where != NULL ? *oldlenp : 0; 2158 error = 0; 2159 needed = 0; 2160 type = rnode->sysctl_num; 2161 2162 if (type == KERN_PROC) { 2163 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2164 return (EINVAL); 2165 op = name[0]; 2166 if (op != KERN_PROC_ALL) 2167 arg = name[1]; 2168 else 2169 arg = 0; /* Quell compiler warning */ 2170 elem_size = elem_count = 0; /* Ditto */ 2171 } else { 2172 if (namelen != 4) 2173 return (EINVAL); 2174 op = name[0]; 2175 arg = name[1]; 2176 elem_size = name[2]; 2177 elem_count = name[3]; 2178 } 2179 2180 proclist_lock_read(); 2181 2182 pd = proclists; 2183 again: 2184 PROCLIST_FOREACH(p, pd->pd_list) { 2185 /* 2186 * Skip embryonic processes. 2187 */ 2188 if (p->p_stat == SIDL) 2189 continue; 2190 2191 if (CURTAIN(l->l_proc->p_ucred->cr_uid, p->p_ucred->cr_uid)) 2192 continue; 2193 2194 /* 2195 * TODO - make more efficient (see notes below). 2196 * do by session. 2197 */ 2198 switch (op) { 2199 2200 case KERN_PROC_PID: 2201 /* could do this with just a lookup */ 2202 if (p->p_pid != (pid_t)arg) 2203 continue; 2204 break; 2205 2206 case KERN_PROC_PGRP: 2207 /* could do this by traversing pgrp */ 2208 if (p->p_pgrp->pg_id != (pid_t)arg) 2209 continue; 2210 break; 2211 2212 case KERN_PROC_SESSION: 2213 if (p->p_session->s_sid != (pid_t)arg) 2214 continue; 2215 break; 2216 2217 case KERN_PROC_TTY: 2218 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2219 if ((p->p_flag & P_CONTROLT) == 0 || 2220 p->p_session->s_ttyp == NULL || 2221 p->p_session->s_ttyvp != NULL) 2222 continue; 2223 } else if ((p->p_flag & P_CONTROLT) == 0 || 2224 p->p_session->s_ttyp == NULL) { 2225 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2226 continue; 2227 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2228 continue; 2229 break; 2230 2231 case KERN_PROC_UID: 2232 if (p->p_ucred->cr_uid != (uid_t)arg) 2233 continue; 2234 break; 2235 2236 case KERN_PROC_RUID: 2237 if (p->p_cred->p_ruid != (uid_t)arg) 2238 continue; 2239 break; 2240 2241 case KERN_PROC_GID: 2242 if (p->p_ucred->cr_gid != (uid_t)arg) 2243 continue; 2244 break; 2245 2246 case KERN_PROC_RGID: 2247 if (p->p_cred->p_rgid != (uid_t)arg) 2248 continue; 2249 break; 2250 2251 case KERN_PROC_ALL: 2252 /* allow everything */ 2253 break; 2254 2255 default: 2256 error = EINVAL; 2257 goto cleanup; 2258 } 2259 if (type == KERN_PROC) { 2260 if (buflen >= sizeof(struct kinfo_proc)) { 2261 fill_eproc(p, &eproc); 2262 error = copyout(p, &dp->kp_proc, 2263 sizeof(struct proc)); 2264 if (error) 2265 goto cleanup; 2266 error = copyout(&eproc, &dp->kp_eproc, 2267 sizeof(eproc)); 2268 if (error) 2269 goto cleanup; 2270 dp++; 2271 buflen -= sizeof(struct kinfo_proc); 2272 } 2273 needed += sizeof(struct kinfo_proc); 2274 } else { /* KERN_PROC2 */ 2275 if (buflen >= elem_size && elem_count > 0) { 2276 fill_kproc2(p, &kproc2); 2277 /* 2278 * Copy out elem_size, but not larger than 2279 * the size of a struct kinfo_proc2. 2280 */ 2281 error = copyout(&kproc2, dp2, 2282 min(sizeof(kproc2), elem_size)); 2283 if (error) 2284 goto cleanup; 2285 dp2 += elem_size; 2286 buflen -= elem_size; 2287 elem_count--; 2288 } 2289 needed += elem_size; 2290 } 2291 } 2292 pd++; 2293 if (pd->pd_list != NULL) 2294 goto again; 2295 proclist_unlock_read(); 2296 2297 if (where != NULL) { 2298 if (type == KERN_PROC) 2299 *oldlenp = (char *)dp - where; 2300 else 2301 *oldlenp = dp2 - where; 2302 if (needed > *oldlenp) 2303 return (ENOMEM); 2304 } else { 2305 needed += KERN_PROCSLOP; 2306 *oldlenp = needed; 2307 } 2308 return (0); 2309 cleanup: 2310 proclist_unlock_read(); 2311 return (error); 2312 } 2313 2314 /* 2315 * sysctl helper routine for kern.proc_args pseudo-subtree. 2316 */ 2317 static int 2318 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2319 { 2320 struct ps_strings pss; 2321 struct proc *p, *up = l->l_proc; 2322 size_t len, upper_bound, xlen, i; 2323 struct uio auio; 2324 struct iovec aiov; 2325 vaddr_t argv; 2326 pid_t pid; 2327 int nargv, type, error; 2328 char *arg; 2329 char *tmp; 2330 struct vmspace *vmspace; 2331 vaddr_t psstr_addr; 2332 vaddr_t offsetn; 2333 vaddr_t offsetv; 2334 2335 if (namelen == 1 && name[0] == CTL_QUERY) 2336 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2337 2338 if (newp != NULL || namelen != 2) 2339 return (EINVAL); 2340 pid = name[0]; 2341 type = name[1]; 2342 2343 switch (type) { 2344 case KERN_PROC_ARGV: 2345 case KERN_PROC_NARGV: 2346 case KERN_PROC_ENV: 2347 case KERN_PROC_NENV: 2348 /* ok */ 2349 break; 2350 default: 2351 return (EINVAL); 2352 } 2353 2354 proclist_lock_read(); 2355 2356 /* check pid */ 2357 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2358 error = EINVAL; 2359 goto out_locked; 2360 } 2361 2362 if (CURTAIN(l->l_proc->p_ucred->cr_uid, p->p_ucred->cr_uid)) { 2363 error = EPERM; 2364 goto out_locked; 2365 } 2366 2367 /* only root or same user change look at the environment */ 2368 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2369 if (up->p_ucred->cr_uid != 0) { 2370 if (up->p_cred->p_ruid != p->p_cred->p_ruid || 2371 up->p_cred->p_ruid != p->p_cred->p_svuid) { 2372 error = EPERM; 2373 goto out_locked; 2374 } 2375 } 2376 } 2377 2378 if (oldp == NULL) { 2379 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2380 *oldlenp = sizeof (int); 2381 else 2382 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2383 error = 0; 2384 goto out_locked; 2385 } 2386 2387 /* 2388 * Zombies don't have a stack, so we can't read their psstrings. 2389 * System processes also don't have a user stack. 2390 */ 2391 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) { 2392 error = EINVAL; 2393 goto out_locked; 2394 } 2395 2396 /* 2397 * Lock the process down in memory. 2398 */ 2399 /* XXXCDC: how should locking work here? */ 2400 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2401 error = EFAULT; 2402 goto out_locked; 2403 } 2404 2405 psstr_addr = (vaddr_t)p->p_psstr; 2406 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2407 offsetn = p->p_psnargv; 2408 offsetv = p->p_psargv; 2409 } else { 2410 offsetn = p->p_psnenv; 2411 offsetv = p->p_psenv; 2412 } 2413 vmspace = p->p_vmspace; 2414 vmspace->vm_refcnt++; /* XXX */ 2415 2416 proclist_unlock_read(); 2417 2418 /* 2419 * Allocate a temporary buffer to hold the arguments. 2420 */ 2421 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2422 2423 /* 2424 * Read in the ps_strings structure. 2425 */ 2426 aiov.iov_base = &pss; 2427 aiov.iov_len = sizeof(pss); 2428 auio.uio_iov = &aiov; 2429 auio.uio_iovcnt = 1; 2430 auio.uio_offset = psstr_addr; 2431 auio.uio_resid = sizeof(pss); 2432 auio.uio_rw = UIO_READ; 2433 UIO_SETUP_SYSSPACE(&auio); 2434 error = uvm_io(&vmspace->vm_map, &auio); 2435 if (error) 2436 goto done; 2437 2438 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2439 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2440 error = copyout(&nargv, oldp, sizeof(nargv)); 2441 *oldlenp = sizeof(nargv); 2442 goto done; 2443 } 2444 /* 2445 * Now read the address of the argument vector. 2446 */ 2447 switch (type) { 2448 case KERN_PROC_ARGV: 2449 /* XXX compat32 stuff here */ 2450 /* FALLTHROUGH */ 2451 case KERN_PROC_ENV: 2452 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2453 break; 2454 default: 2455 return (EINVAL); 2456 } 2457 auio.uio_offset = (off_t)(unsigned long)tmp; 2458 aiov.iov_base = &argv; 2459 aiov.iov_len = sizeof(argv); 2460 auio.uio_iov = &aiov; 2461 auio.uio_iovcnt = 1; 2462 auio.uio_resid = sizeof(argv); 2463 auio.uio_rw = UIO_READ; 2464 UIO_SETUP_SYSSPACE(&auio); 2465 error = uvm_io(&vmspace->vm_map, &auio); 2466 if (error) 2467 goto done; 2468 2469 /* 2470 * Now copy in the actual argument vector, one page at a time, 2471 * since we don't know how long the vector is (though, we do 2472 * know how many NUL-terminated strings are in the vector). 2473 */ 2474 len = 0; 2475 upper_bound = *oldlenp; 2476 for (; nargv != 0 && len < upper_bound; len += xlen) { 2477 aiov.iov_base = arg; 2478 aiov.iov_len = PAGE_SIZE; 2479 auio.uio_iov = &aiov; 2480 auio.uio_iovcnt = 1; 2481 auio.uio_offset = argv + len; 2482 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2483 auio.uio_resid = xlen; 2484 auio.uio_rw = UIO_READ; 2485 UIO_SETUP_SYSSPACE(&auio); 2486 error = uvm_io(&vmspace->vm_map, &auio); 2487 if (error) 2488 goto done; 2489 2490 for (i = 0; i < xlen && nargv != 0; i++) { 2491 if (arg[i] == '\0') 2492 nargv--; /* one full string */ 2493 } 2494 2495 /* 2496 * Make sure we don't copyout past the end of the user's 2497 * buffer. 2498 */ 2499 if (len + i > upper_bound) 2500 i = upper_bound - len; 2501 2502 error = copyout(arg, (char *)oldp + len, i); 2503 if (error) 2504 break; 2505 2506 if (nargv == 0) { 2507 len += i; 2508 break; 2509 } 2510 } 2511 *oldlenp = len; 2512 2513 done: 2514 uvmspace_free(vmspace); 2515 2516 free(arg, M_TEMP); 2517 return error; 2518 2519 out_locked: 2520 proclist_unlock_read(); 2521 return error; 2522 } 2523 2524 /* 2525 * Sysctl helper routine for Verified Exec. 2526 */ 2527 #ifdef VERIFIED_EXEC 2528 static int 2529 sysctl_kern_veriexec(SYSCTLFN_ARGS) 2530 { 2531 int newval, error; 2532 int *var = NULL, raise_only = 0; 2533 struct sysctlnode node; 2534 2535 node = *rnode; 2536 2537 switch (rnode->sysctl_num) { 2538 case VERIEXEC_STRICT: 2539 raise_only = 1; 2540 var = &veriexec_strict; 2541 break; 2542 case VERIEXEC_ALGORITHMS: 2543 node.sysctl_data = veriexec_fp_names; 2544 node.sysctl_size = strlen(veriexec_fp_names) + 1; 2545 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2546 default: 2547 return (EINVAL); 2548 } 2549 2550 newval = *var; 2551 2552 node.sysctl_data = &newval; 2553 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2554 if (error || newp == NULL) { 2555 return (error); 2556 } 2557 2558 if (raise_only && (newval < *var)) 2559 return (EPERM); 2560 2561 *var = newval; 2562 2563 return (error); 2564 } 2565 #endif /* VERIFIED_EXEC */ 2566 2567 static int 2568 sysctl_security_setidcore(SYSCTLFN_ARGS) 2569 { 2570 int newsize, error; 2571 struct sysctlnode node; 2572 2573 node = *rnode; 2574 node.sysctl_data = &newsize; 2575 newsize = *(int *)rnode->sysctl_data; 2576 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2577 if (error || newp == NULL) 2578 return error; 2579 2580 if (securelevel > 0) 2581 return (EPERM); 2582 2583 *(int *)rnode->sysctl_data = newsize; 2584 2585 return 0; 2586 } 2587 2588 static int 2589 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2590 { 2591 int error; 2592 char newsetidcorename[MAXPATHLEN]; 2593 struct sysctlnode node; 2594 2595 node = *rnode; 2596 node.sysctl_data = &newsetidcorename[0]; 2597 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2598 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2599 if (error || newp == NULL) 2600 return (error); 2601 2602 if (securelevel > 0) 2603 return (EPERM); 2604 2605 if (strlen(newsetidcorename) == 0) 2606 return (EINVAL); 2607 2608 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2609 2610 return (0); 2611 } 2612 2613 /* 2614 * sysctl helper routine for kern.cp_id node. maps cpus to their 2615 * cpuids. 2616 */ 2617 static int 2618 sysctl_kern_cpid(SYSCTLFN_ARGS) 2619 { 2620 struct sysctlnode node = *rnode; 2621 2622 #ifndef MULTIPROCESSOR 2623 uint64_t id; 2624 2625 if (namelen == 1) { 2626 if (name[0] != 0) 2627 return (ENOENT); 2628 /* 2629 * you're allowed to ask for the zero'th processor 2630 */ 2631 name++; 2632 namelen--; 2633 } 2634 node.sysctl_data = &id; 2635 node.sysctl_size = sizeof(id); 2636 id = cpu_number(); 2637 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2638 2639 #else /* MULTIPROCESSOR */ 2640 uint64_t *cp_id = NULL; 2641 int error, n = sysctl_ncpus(); 2642 struct cpu_info *ci; 2643 CPU_INFO_ITERATOR cii; 2644 2645 /* 2646 * here you may either retrieve a single cpu id or the whole 2647 * set. the size you get back when probing depends on what 2648 * you ask for. 2649 */ 2650 switch (namelen) { 2651 case 0: 2652 node.sysctl_size = n * sizeof(uint64_t); 2653 n = -2; /* ALL */ 2654 break; 2655 case 1: 2656 if (name[0] < 0 || name[0] >= n) 2657 return (ENOENT); /* ENOSUCHPROCESSOR */ 2658 node.sysctl_size = sizeof(uint64_t); 2659 n = name[0]; 2660 /* 2661 * adjust these so that sysctl_lookup() will be happy 2662 */ 2663 name++; 2664 namelen--; 2665 break; 2666 default: 2667 return (EINVAL); 2668 } 2669 2670 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2671 if (cp_id == NULL) 2672 return (ENOMEM); 2673 node.sysctl_data = cp_id; 2674 memset(cp_id, 0, node.sysctl_size); 2675 2676 for (CPU_INFO_FOREACH(cii, ci)) { 2677 if (n <= 0) 2678 cp_id[0] = ci->ci_cpuid; 2679 /* 2680 * if a specific processor was requested and we just 2681 * did it, we're done here 2682 */ 2683 if (n == 0) 2684 break; 2685 /* 2686 * if doing "all", skip to next cp_id slot for next processor 2687 */ 2688 if (n == -2) 2689 cp_id++; 2690 /* 2691 * if we're doing a specific processor, we're one 2692 * processor closer 2693 */ 2694 if (n > 0) 2695 n--; 2696 } 2697 2698 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2699 free(node.sysctl_data, M_TEMP); 2700 return (error); 2701 2702 #endif /* MULTIPROCESSOR */ 2703 } 2704 2705 /* 2706 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2707 * calculate on the fly taking into account integer overflow and the 2708 * current wired count. 2709 */ 2710 static int 2711 sysctl_hw_usermem(SYSCTLFN_ARGS) 2712 { 2713 u_int ui; 2714 u_quad_t uq; 2715 struct sysctlnode node; 2716 2717 node = *rnode; 2718 switch (rnode->sysctl_num) { 2719 case HW_USERMEM: 2720 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2721 ui = UINT_MAX; 2722 else 2723 ui *= PAGE_SIZE; 2724 node.sysctl_data = &ui; 2725 break; 2726 case HW_USERMEM64: 2727 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2728 node.sysctl_data = &uq; 2729 break; 2730 default: 2731 return (EINVAL); 2732 } 2733 2734 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2735 } 2736 2737 /* 2738 * sysctl helper routine for kern.cnmagic node. pulls the old value 2739 * out, encoded, and stuffs the new value in for decoding. 2740 */ 2741 static int 2742 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2743 { 2744 char magic[CNS_LEN]; 2745 int error; 2746 struct sysctlnode node; 2747 2748 if (oldp) 2749 cn_get_magic(magic, CNS_LEN); 2750 node = *rnode; 2751 node.sysctl_data = &magic[0]; 2752 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2753 if (error || newp == NULL) 2754 return (error); 2755 2756 return (cn_set_magic(magic)); 2757 } 2758 2759 static int 2760 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2761 { 2762 int ncpu; 2763 struct sysctlnode node; 2764 2765 ncpu = sysctl_ncpus(); 2766 node = *rnode; 2767 node.sysctl_data = &ncpu; 2768 2769 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2770 } 2771 2772 2773 /* 2774 * ******************************************************************** 2775 * section 3: public helper routines that are used for more than one 2776 * node 2777 * ******************************************************************** 2778 */ 2779 2780 /* 2781 * sysctl helper routine for the kern.root_device node and some ports' 2782 * machdep.root_device nodes. 2783 */ 2784 int 2785 sysctl_root_device(SYSCTLFN_ARGS) 2786 { 2787 struct sysctlnode node; 2788 2789 node = *rnode; 2790 node.sysctl_data = root_device->dv_xname; 2791 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2792 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2793 } 2794 2795 /* 2796 * sysctl helper routine for kern.consdev, dependent on the current 2797 * state of the console. also used for machdep.console_device on some 2798 * ports. 2799 */ 2800 int 2801 sysctl_consdev(SYSCTLFN_ARGS) 2802 { 2803 dev_t consdev; 2804 struct sysctlnode node; 2805 2806 if (cn_tab != NULL) 2807 consdev = cn_tab->cn_dev; 2808 else 2809 consdev = NODEV; 2810 node = *rnode; 2811 node.sysctl_data = &consdev; 2812 node.sysctl_size = sizeof(consdev); 2813 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2814 } 2815 2816 /* 2817 * ******************************************************************** 2818 * section 4: support for some helpers 2819 * ******************************************************************** 2820 */ 2821 2822 /* 2823 * Fill in a kinfo_proc2 structure for the specified process. 2824 */ 2825 static void 2826 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2827 { 2828 struct tty *tp; 2829 struct lwp *l; 2830 struct timeval ut, st; 2831 2832 memset(ki, 0, sizeof(*ki)); 2833 2834 ki->p_paddr = PTRTOUINT64(p); 2835 ki->p_fd = PTRTOUINT64(p->p_fd); 2836 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2837 ki->p_stats = PTRTOUINT64(p->p_stats); 2838 ki->p_limit = PTRTOUINT64(p->p_limit); 2839 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2840 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2841 ki->p_sess = PTRTOUINT64(p->p_session); 2842 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2843 ki->p_ru = PTRTOUINT64(p->p_ru); 2844 2845 ki->p_eflag = 0; 2846 ki->p_exitsig = p->p_exitsig; 2847 ki->p_flag = p->p_flag; 2848 2849 ki->p_pid = p->p_pid; 2850 if (p->p_pptr) 2851 ki->p_ppid = p->p_pptr->p_pid; 2852 else 2853 ki->p_ppid = 0; 2854 ki->p_sid = p->p_session->s_sid; 2855 ki->p__pgid = p->p_pgrp->pg_id; 2856 2857 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2858 2859 ki->p_uid = p->p_ucred->cr_uid; 2860 ki->p_ruid = p->p_cred->p_ruid; 2861 ki->p_gid = p->p_ucred->cr_gid; 2862 ki->p_rgid = p->p_cred->p_rgid; 2863 ki->p_svuid = p->p_cred->p_svuid; 2864 ki->p_svgid = p->p_cred->p_svgid; 2865 2866 memcpy(ki->p_groups, p->p_cred->pc_ucred->cr_groups, 2867 min(sizeof(ki->p_groups), sizeof(p->p_cred->pc_ucred->cr_groups))); 2868 ki->p_ngroups = p->p_cred->pc_ucred->cr_ngroups; 2869 2870 ki->p_jobc = p->p_pgrp->pg_jobc; 2871 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2872 ki->p_tdev = tp->t_dev; 2873 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2874 ki->p_tsess = PTRTOUINT64(tp->t_session); 2875 } else { 2876 ki->p_tdev = NODEV; 2877 } 2878 2879 ki->p_estcpu = p->p_estcpu; 2880 ki->p_rtime_sec = p->p_rtime.tv_sec; 2881 ki->p_rtime_usec = p->p_rtime.tv_usec; 2882 ki->p_cpticks = p->p_cpticks; 2883 ki->p_pctcpu = p->p_pctcpu; 2884 2885 ki->p_uticks = p->p_uticks; 2886 ki->p_sticks = p->p_sticks; 2887 ki->p_iticks = p->p_iticks; 2888 2889 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2890 ki->p_traceflag = p->p_traceflag; 2891 2892 2893 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2894 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2895 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2896 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2897 2898 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2899 ki->p_realstat = p->p_stat; 2900 ki->p_nice = p->p_nice; 2901 2902 ki->p_xstat = p->p_xstat; 2903 ki->p_acflag = p->p_acflag; 2904 2905 strncpy(ki->p_comm, p->p_comm, 2906 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2907 2908 strncpy(ki->p_login, p->p_session->s_login, 2909 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2910 2911 ki->p_nlwps = p->p_nlwps; 2912 ki->p_nrlwps = p->p_nrlwps; 2913 ki->p_realflag = p->p_flag; 2914 2915 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2916 ki->p_vm_rssize = 0; 2917 ki->p_vm_tsize = 0; 2918 ki->p_vm_dsize = 0; 2919 ki->p_vm_ssize = 0; 2920 l = NULL; 2921 } else { 2922 struct vmspace *vm = p->p_vmspace; 2923 2924 ki->p_vm_rssize = vm_resident_count(vm); 2925 ki->p_vm_tsize = vm->vm_tsize; 2926 ki->p_vm_dsize = vm->vm_dsize; 2927 ki->p_vm_ssize = vm->vm_ssize; 2928 2929 /* Pick a "representative" LWP */ 2930 l = proc_representative_lwp(p); 2931 ki->p_forw = PTRTOUINT64(l->l_forw); 2932 ki->p_back = PTRTOUINT64(l->l_back); 2933 ki->p_addr = PTRTOUINT64(l->l_addr); 2934 ki->p_stat = l->l_stat; 2935 ki->p_flag |= l->l_flag & P_SHARED; 2936 ki->p_swtime = l->l_swtime; 2937 ki->p_slptime = l->l_slptime; 2938 if (l->l_stat == LSONPROC) { 2939 KDASSERT(l->l_cpu != NULL); 2940 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2941 } else 2942 ki->p_schedflags = 0; 2943 ki->p_holdcnt = l->l_holdcnt; 2944 ki->p_priority = l->l_priority; 2945 ki->p_usrpri = l->l_usrpri; 2946 if (l->l_wmesg) 2947 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2948 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2949 2950 } 2951 2952 if (p->p_session->s_ttyvp) 2953 ki->p_eflag |= EPROC_CTTY; 2954 if (SESS_LEADER(p)) 2955 ki->p_eflag |= EPROC_SLEADER; 2956 2957 /* XXX Is this double check necessary? */ 2958 if (P_ZOMBIE(p)) { 2959 ki->p_uvalid = 0; 2960 } else { 2961 ki->p_uvalid = 1; 2962 2963 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2964 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2965 2966 calcru(p, &ut, &st, 0); 2967 ki->p_uutime_sec = ut.tv_sec; 2968 ki->p_uutime_usec = ut.tv_usec; 2969 ki->p_ustime_sec = st.tv_sec; 2970 ki->p_ustime_usec = st.tv_usec; 2971 2972 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2973 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2974 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2975 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2976 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2977 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2978 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2979 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2980 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2981 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2982 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2983 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2984 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 2985 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 2986 2987 timeradd(&p->p_stats->p_cru.ru_utime, 2988 &p->p_stats->p_cru.ru_stime, &ut); 2989 ki->p_uctime_sec = ut.tv_sec; 2990 ki->p_uctime_usec = ut.tv_usec; 2991 } 2992 #ifdef MULTIPROCESSOR 2993 if (l && l->l_cpu != NULL) 2994 ki->p_cpuid = l->l_cpu->ci_cpuid; 2995 else 2996 #endif 2997 ki->p_cpuid = KI_NOCPU; 2998 } 2999 3000 /* 3001 * Fill in a kinfo_lwp structure for the specified lwp. 3002 */ 3003 static void 3004 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3005 { 3006 3007 kl->l_forw = PTRTOUINT64(l->l_forw); 3008 kl->l_back = PTRTOUINT64(l->l_back); 3009 kl->l_laddr = PTRTOUINT64(l); 3010 kl->l_addr = PTRTOUINT64(l->l_addr); 3011 kl->l_stat = l->l_stat; 3012 kl->l_lid = l->l_lid; 3013 kl->l_flag = l->l_flag; 3014 3015 kl->l_swtime = l->l_swtime; 3016 kl->l_slptime = l->l_slptime; 3017 if (l->l_stat == LSONPROC) { 3018 KDASSERT(l->l_cpu != NULL); 3019 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3020 } else 3021 kl->l_schedflags = 0; 3022 kl->l_holdcnt = l->l_holdcnt; 3023 kl->l_priority = l->l_priority; 3024 kl->l_usrpri = l->l_usrpri; 3025 if (l->l_wmesg) 3026 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3027 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3028 #ifdef MULTIPROCESSOR 3029 if (l->l_cpu != NULL) 3030 kl->l_cpuid = l->l_cpu->ci_cpuid; 3031 else 3032 #endif 3033 kl->l_cpuid = KI_NOCPU; 3034 } 3035 3036 /* 3037 * Fill in an eproc structure for the specified process. 3038 */ 3039 void 3040 fill_eproc(struct proc *p, struct eproc *ep) 3041 { 3042 struct tty *tp; 3043 struct lwp *l; 3044 3045 ep->e_paddr = p; 3046 ep->e_sess = p->p_session; 3047 ep->e_pcred = *p->p_cred; 3048 ep->e_ucred = *p->p_ucred; 3049 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 3050 ep->e_vm.vm_rssize = 0; 3051 ep->e_vm.vm_tsize = 0; 3052 ep->e_vm.vm_dsize = 0; 3053 ep->e_vm.vm_ssize = 0; 3054 /* ep->e_vm.vm_pmap = XXX; */ 3055 } else { 3056 struct vmspace *vm = p->p_vmspace; 3057 3058 ep->e_vm.vm_rssize = vm_resident_count(vm); 3059 ep->e_vm.vm_tsize = vm->vm_tsize; 3060 ep->e_vm.vm_dsize = vm->vm_dsize; 3061 ep->e_vm.vm_ssize = vm->vm_ssize; 3062 3063 /* Pick a "representative" LWP */ 3064 l = proc_representative_lwp(p); 3065 3066 if (l->l_wmesg) 3067 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3068 } 3069 if (p->p_pptr) 3070 ep->e_ppid = p->p_pptr->p_pid; 3071 else 3072 ep->e_ppid = 0; 3073 ep->e_pgid = p->p_pgrp->pg_id; 3074 ep->e_sid = ep->e_sess->s_sid; 3075 ep->e_jobc = p->p_pgrp->pg_jobc; 3076 if ((p->p_flag & P_CONTROLT) && 3077 (tp = ep->e_sess->s_ttyp)) { 3078 ep->e_tdev = tp->t_dev; 3079 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3080 ep->e_tsess = tp->t_session; 3081 } else 3082 ep->e_tdev = NODEV; 3083 3084 ep->e_xsize = ep->e_xrssize = 0; 3085 ep->e_xccount = ep->e_xswrss = 0; 3086 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3087 if (SESS_LEADER(p)) 3088 ep->e_flag |= EPROC_SLEADER; 3089 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3090 } 3091
Indexes created Wed Oct 01 15:09:59 GMT 2025