init_sysctl.c revision 1.63.4.7
1 /* $NetBSD: init_sysctl.c,v 1.63.4.7 2006/04/21 23:01:40 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 1.63.4.7 2006/04/21 23:01:40 elad 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 (kauth_authorize_process(l->l_proc->p_cred, 1314 KAUTH_PROCESS_CANSEE, l->l_proc, fp->f_cred, NULL, 1315 NULL) != 0) 1316 continue; 1317 if (buflen < sizeof(struct file)) { 1318 *oldlenp = where - start; 1319 return (ENOMEM); 1320 } 1321 error = copyout(fp, where, sizeof(struct file)); 1322 if (error) 1323 return (error); 1324 buflen -= sizeof(struct file); 1325 where += sizeof(struct file); 1326 } 1327 *oldlenp = where - start; 1328 return (0); 1329 } 1330 1331 /* 1332 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1333 * asserts that the assigned value is in the correct range. 1334 */ 1335 static int 1336 sysctl_kern_autonice(SYSCTLFN_ARGS) 1337 { 1338 int error, t = 0; 1339 struct sysctlnode node; 1340 1341 node = *rnode; 1342 t = *(int*)node.sysctl_data; 1343 node.sysctl_data = &t; 1344 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1345 if (error || newp == NULL) 1346 return (error); 1347 1348 switch (node.sysctl_num) { 1349 case KERN_AUTONICETIME: 1350 if (t >= 0) 1351 autonicetime = t; 1352 break; 1353 case KERN_AUTONICEVAL: 1354 if (t < PRIO_MIN) 1355 t = PRIO_MIN; 1356 else if (t > PRIO_MAX) 1357 t = PRIO_MAX; 1358 autoniceval = t; 1359 break; 1360 } 1361 1362 return (0); 1363 } 1364 1365 /* 1366 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1367 * former it merely checks the message buffer is set up. for the latter, 1368 * it also copies out the data if necessary. 1369 */ 1370 static int 1371 sysctl_msgbuf(SYSCTLFN_ARGS) 1372 { 1373 char *where = oldp; 1374 size_t len, maxlen; 1375 long beg, end; 1376 int error; 1377 1378 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1379 msgbufenabled = 0; 1380 return (ENXIO); 1381 } 1382 1383 switch (rnode->sysctl_num) { 1384 case KERN_MSGBUFSIZE: { 1385 struct sysctlnode node = *rnode; 1386 int msg_bufs = (int)msgbufp->msg_bufs; 1387 node.sysctl_data = &msg_bufs; 1388 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1389 } 1390 case KERN_MSGBUF: 1391 break; 1392 default: 1393 return (EOPNOTSUPP); 1394 } 1395 1396 if (newp != NULL) 1397 return (EPERM); 1398 1399 if (oldp == NULL) { 1400 /* always return full buffer size */ 1401 *oldlenp = msgbufp->msg_bufs; 1402 return (0); 1403 } 1404 1405 error = 0; 1406 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1407 1408 /* 1409 * First, copy from the write pointer to the end of 1410 * message buffer. 1411 */ 1412 beg = msgbufp->msg_bufx; 1413 end = msgbufp->msg_bufs; 1414 while (maxlen > 0) { 1415 len = MIN(end - beg, maxlen); 1416 if (len == 0) 1417 break; 1418 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1419 if (error) 1420 break; 1421 where += len; 1422 maxlen -= len; 1423 1424 /* 1425 * ... then, copy from the beginning of message buffer to 1426 * the write pointer. 1427 */ 1428 beg = 0; 1429 end = msgbufp->msg_bufx; 1430 } 1431 1432 return (error); 1433 } 1434 1435 /* 1436 * sysctl helper routine for kern.defcorename. in the case of a new 1437 * string being assigned, check that it's not a zero-length string. 1438 * (XXX the check in -current doesn't work, but do we really care?) 1439 */ 1440 static int 1441 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1442 { 1443 int error; 1444 char *newcorename; 1445 struct sysctlnode node; 1446 1447 newcorename = PNBUF_GET(); 1448 node = *rnode; 1449 node.sysctl_data = &newcorename[0]; 1450 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1451 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1452 if (error || newp == NULL) { 1453 goto done; 1454 } 1455 1456 /* 1457 * when sysctl_lookup() deals with a string, it's guaranteed 1458 * to come back nul terminated. so there. :) 1459 */ 1460 if (strlen(newcorename) == 0) { 1461 error = EINVAL; 1462 } else { 1463 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1464 error = 0; 1465 } 1466 done: 1467 PNBUF_PUT(newcorename); 1468 return error; 1469 } 1470 1471 /* 1472 * sysctl helper routine for kern.cp_time node. adds up cpu time 1473 * across all cpus. 1474 */ 1475 static int 1476 sysctl_kern_cptime(SYSCTLFN_ARGS) 1477 { 1478 struct sysctlnode node = *rnode; 1479 1480 #ifndef MULTIPROCESSOR 1481 1482 if (namelen == 1) { 1483 if (name[0] != 0) 1484 return (ENOENT); 1485 /* 1486 * you're allowed to ask for the zero'th processor 1487 */ 1488 name++; 1489 namelen--; 1490 } 1491 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1492 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1493 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1494 1495 #else /* MULTIPROCESSOR */ 1496 1497 uint64_t *cp_time = NULL; 1498 int error, n = sysctl_ncpus(), i; 1499 struct cpu_info *ci; 1500 CPU_INFO_ITERATOR cii; 1501 1502 /* 1503 * if you specifically pass a buffer that is the size of the 1504 * sum, or if you are probing for the size, you get the "sum" 1505 * of cp_time (and the size thereof) across all processors. 1506 * 1507 * alternately, you can pass an additional mib number and get 1508 * cp_time for that particular processor. 1509 */ 1510 switch (namelen) { 1511 case 0: 1512 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1513 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1514 n = -1; /* SUM */ 1515 } 1516 else { 1517 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1518 n = -2; /* ALL */ 1519 } 1520 break; 1521 case 1: 1522 if (name[0] < 0 || name[0] >= n) 1523 return (ENOENT); /* ENOSUCHPROCESSOR */ 1524 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1525 n = name[0]; 1526 /* 1527 * adjust these so that sysctl_lookup() will be happy 1528 */ 1529 name++; 1530 namelen--; 1531 break; 1532 default: 1533 return (EINVAL); 1534 } 1535 1536 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1537 if (cp_time == NULL) 1538 return (ENOMEM); 1539 node.sysctl_data = cp_time; 1540 memset(cp_time, 0, node.sysctl_size); 1541 1542 for (CPU_INFO_FOREACH(cii, ci)) { 1543 if (n <= 0) 1544 for (i = 0; i < CPUSTATES; i++) 1545 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1546 /* 1547 * if a specific processor was requested and we just 1548 * did it, we're done here 1549 */ 1550 if (n == 0) 1551 break; 1552 /* 1553 * if doing "all", skip to next cp_time set for next processor 1554 */ 1555 if (n == -2) 1556 cp_time += CPUSTATES; 1557 /* 1558 * if we're doing a specific processor, we're one 1559 * processor closer 1560 */ 1561 if (n > 0) 1562 n--; 1563 } 1564 1565 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1566 free(node.sysctl_data, M_TEMP); 1567 return (error); 1568 1569 #endif /* MULTIPROCESSOR */ 1570 } 1571 1572 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1573 /* 1574 * sysctl helper routine for kern.sysvipc_info subtree. 1575 */ 1576 1577 #define FILL_PERM(src, dst) do { \ 1578 (dst)._key = (src)._key; \ 1579 (dst).uid = (src).uid; \ 1580 (dst).gid = (src).gid; \ 1581 (dst).cuid = (src).cuid; \ 1582 (dst).cgid = (src).cgid; \ 1583 (dst).mode = (src).mode; \ 1584 (dst)._seq = (src)._seq; \ 1585 } while (/*CONSTCOND*/ 0); 1586 #define FILL_MSG(src, dst) do { \ 1587 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1588 (dst).msg_qnum = (src).msg_qnum; \ 1589 (dst).msg_qbytes = (src).msg_qbytes; \ 1590 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1591 (dst).msg_lspid = (src).msg_lspid; \ 1592 (dst).msg_lrpid = (src).msg_lrpid; \ 1593 (dst).msg_stime = (src).msg_stime; \ 1594 (dst).msg_rtime = (src).msg_rtime; \ 1595 (dst).msg_ctime = (src).msg_ctime; \ 1596 } while (/*CONSTCOND*/ 0) 1597 #define FILL_SEM(src, dst) do { \ 1598 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1599 (dst).sem_nsems = (src).sem_nsems; \ 1600 (dst).sem_otime = (src).sem_otime; \ 1601 (dst).sem_ctime = (src).sem_ctime; \ 1602 } while (/*CONSTCOND*/ 0) 1603 #define FILL_SHM(src, dst) do { \ 1604 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1605 (dst).shm_segsz = (src).shm_segsz; \ 1606 (dst).shm_lpid = (src).shm_lpid; \ 1607 (dst).shm_cpid = (src).shm_cpid; \ 1608 (dst).shm_atime = (src).shm_atime; \ 1609 (dst).shm_dtime = (src).shm_dtime; \ 1610 (dst).shm_ctime = (src).shm_ctime; \ 1611 (dst).shm_nattch = (src).shm_nattch; \ 1612 } while (/*CONSTCOND*/ 0) 1613 1614 static int 1615 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1616 { 1617 void *where = oldp; 1618 size_t *sizep = oldlenp; 1619 #ifdef SYSVMSG 1620 struct msg_sysctl_info *msgsi = NULL; 1621 #endif 1622 #ifdef SYSVSEM 1623 struct sem_sysctl_info *semsi = NULL; 1624 #endif 1625 #ifdef SYSVSHM 1626 struct shm_sysctl_info *shmsi = NULL; 1627 #endif 1628 size_t infosize, dssize, tsize, buflen; 1629 void *bf = NULL; 1630 char *start; 1631 int32_t nds; 1632 int i, error, ret; 1633 1634 if (namelen != 1) 1635 return (EINVAL); 1636 1637 start = where; 1638 buflen = *sizep; 1639 1640 switch (*name) { 1641 case KERN_SYSVIPC_MSG_INFO: 1642 #ifdef SYSVMSG 1643 infosize = sizeof(msgsi->msginfo); 1644 nds = msginfo.msgmni; 1645 dssize = sizeof(msgsi->msgids[0]); 1646 break; 1647 #else 1648 return (EINVAL); 1649 #endif 1650 case KERN_SYSVIPC_SEM_INFO: 1651 #ifdef SYSVSEM 1652 infosize = sizeof(semsi->seminfo); 1653 nds = seminfo.semmni; 1654 dssize = sizeof(semsi->semids[0]); 1655 break; 1656 #else 1657 return (EINVAL); 1658 #endif 1659 case KERN_SYSVIPC_SHM_INFO: 1660 #ifdef SYSVSHM 1661 infosize = sizeof(shmsi->shminfo); 1662 nds = shminfo.shmmni; 1663 dssize = sizeof(shmsi->shmids[0]); 1664 break; 1665 #else 1666 return (EINVAL); 1667 #endif 1668 default: 1669 return (EINVAL); 1670 } 1671 /* 1672 * Round infosize to 64 bit boundary if requesting more than just 1673 * the info structure or getting the total data size. 1674 */ 1675 if (where == NULL || *sizep > infosize) 1676 infosize = ((infosize + 7) / 8) * 8; 1677 tsize = infosize + nds * dssize; 1678 1679 /* Return just the total size required. */ 1680 if (where == NULL) { 1681 *sizep = tsize; 1682 return (0); 1683 } 1684 1685 /* Not enough room for even the info struct. */ 1686 if (buflen < infosize) { 1687 *sizep = 0; 1688 return (ENOMEM); 1689 } 1690 bf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1691 memset(bf, 0, min(tsize, buflen)); 1692 1693 switch (*name) { 1694 #ifdef SYSVMSG 1695 case KERN_SYSVIPC_MSG_INFO: 1696 msgsi = (struct msg_sysctl_info *)bf; 1697 msgsi->msginfo = msginfo; 1698 break; 1699 #endif 1700 #ifdef SYSVSEM 1701 case KERN_SYSVIPC_SEM_INFO: 1702 semsi = (struct sem_sysctl_info *)bf; 1703 semsi->seminfo = seminfo; 1704 break; 1705 #endif 1706 #ifdef SYSVSHM 1707 case KERN_SYSVIPC_SHM_INFO: 1708 shmsi = (struct shm_sysctl_info *)bf; 1709 shmsi->shminfo = shminfo; 1710 break; 1711 #endif 1712 } 1713 buflen -= infosize; 1714 1715 ret = 0; 1716 if (buflen > 0) { 1717 /* Fill in the IPC data structures. */ 1718 for (i = 0; i < nds; i++) { 1719 if (buflen < dssize) { 1720 ret = ENOMEM; 1721 break; 1722 } 1723 switch (*name) { 1724 #ifdef SYSVMSG 1725 case KERN_SYSVIPC_MSG_INFO: 1726 FILL_MSG(msqids[i], msgsi->msgids[i]); 1727 break; 1728 #endif 1729 #ifdef SYSVSEM 1730 case KERN_SYSVIPC_SEM_INFO: 1731 FILL_SEM(sema[i], semsi->semids[i]); 1732 break; 1733 #endif 1734 #ifdef SYSVSHM 1735 case KERN_SYSVIPC_SHM_INFO: 1736 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1737 break; 1738 #endif 1739 } 1740 buflen -= dssize; 1741 } 1742 } 1743 *sizep -= buflen; 1744 error = copyout(bf, start, *sizep); 1745 /* If copyout succeeded, use return code set earlier. */ 1746 if (error == 0) 1747 error = ret; 1748 if (bf) 1749 free(bf, M_TEMP); 1750 return (error); 1751 } 1752 1753 #undef FILL_PERM 1754 #undef FILL_MSG 1755 #undef FILL_SEM 1756 #undef FILL_SHM 1757 1758 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1759 1760 #if NPTY > 0 1761 /* 1762 * sysctl helper routine for kern.maxptys. ensures that any new value 1763 * is acceptable to the pty subsystem. 1764 */ 1765 static int 1766 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1767 { 1768 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1769 int error, xmax; 1770 struct sysctlnode node; 1771 1772 /* get current value of maxptys */ 1773 xmax = pty_maxptys(0, 0); 1774 1775 node = *rnode; 1776 node.sysctl_data = &xmax; 1777 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1778 if (error || newp == NULL) 1779 return (error); 1780 1781 if (xmax != pty_maxptys(xmax, 1)) 1782 return (EINVAL); 1783 1784 return (0); 1785 } 1786 #endif /* NPTY > 0 */ 1787 1788 /* 1789 * sysctl helper routine for kern.sbmax. basically just ensures that 1790 * any new value is not too small. 1791 */ 1792 static int 1793 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1794 { 1795 int error, new_sbmax; 1796 struct sysctlnode node; 1797 1798 new_sbmax = sb_max; 1799 node = *rnode; 1800 node.sysctl_data = &new_sbmax; 1801 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1802 if (error || newp == NULL) 1803 return (error); 1804 1805 error = sb_max_set(new_sbmax); 1806 1807 return (error); 1808 } 1809 1810 /* 1811 * sysctl helper routine for kern.urandom node. picks a random number 1812 * for you. 1813 */ 1814 static int 1815 sysctl_kern_urnd(SYSCTLFN_ARGS) 1816 { 1817 #if NRND > 0 1818 int v; 1819 1820 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1821 struct sysctlnode node = *rnode; 1822 node.sysctl_data = &v; 1823 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1824 } 1825 else 1826 return (EIO); /*XXX*/ 1827 #else 1828 return (EOPNOTSUPP); 1829 #endif 1830 } 1831 1832 /* 1833 * sysctl helper routine to do kern.lwp.* work. 1834 */ 1835 static int 1836 sysctl_kern_lwp(SYSCTLFN_ARGS) 1837 { 1838 struct kinfo_lwp klwp; 1839 struct proc *p; 1840 struct lwp *l2; 1841 char *where, *dp; 1842 int pid, elem_size, elem_count; 1843 int buflen, needed, error; 1844 1845 if (namelen == 1 && name[0] == CTL_QUERY) 1846 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1847 1848 dp = where = oldp; 1849 buflen = where != NULL ? *oldlenp : 0; 1850 error = needed = 0; 1851 1852 if (newp != NULL || namelen != 3) 1853 return (EINVAL); 1854 pid = name[0]; 1855 elem_size = name[1]; 1856 elem_count = name[2]; 1857 1858 p = pfind(pid); 1859 if (p == NULL) 1860 return (ESRCH); 1861 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1862 if (buflen >= elem_size && elem_count > 0) { 1863 fill_lwp(l2, &klwp); 1864 /* 1865 * Copy out elem_size, but not larger than 1866 * the size of a struct kinfo_proc2. 1867 */ 1868 error = copyout(&klwp, dp, 1869 min(sizeof(klwp), elem_size)); 1870 if (error) 1871 goto cleanup; 1872 dp += elem_size; 1873 buflen -= elem_size; 1874 elem_count--; 1875 } 1876 needed += elem_size; 1877 } 1878 1879 if (where != NULL) { 1880 *oldlenp = dp - where; 1881 if (needed > *oldlenp) 1882 return (ENOMEM); 1883 } else { 1884 needed += KERN_LWPSLOP; 1885 *oldlenp = needed; 1886 } 1887 return (0); 1888 cleanup: 1889 return (error); 1890 } 1891 1892 /* 1893 * sysctl helper routine for kern.forkfsleep node. ensures that the 1894 * given value is not too large or two small, and is at least one 1895 * timer tick if not zero. 1896 */ 1897 static int 1898 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1899 { 1900 /* userland sees value in ms, internally is in ticks */ 1901 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1902 int error, timo, lsleep; 1903 struct sysctlnode node; 1904 1905 lsleep = forkfsleep * 1000 / hz; 1906 node = *rnode; 1907 node.sysctl_data = &lsleep; 1908 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1909 if (error || newp == NULL) 1910 return (error); 1911 1912 /* refuse negative values, and overly 'long time' */ 1913 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1914 return (EINVAL); 1915 1916 timo = mstohz(lsleep); 1917 1918 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1919 if (lsleep != 0 && timo == 0) 1920 forkfsleep = 1; 1921 else 1922 forkfsleep = timo; 1923 1924 return (0); 1925 } 1926 1927 /* 1928 * sysctl helper routine for kern.root_partition 1929 */ 1930 static int 1931 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1932 { 1933 int rootpart = DISKPART(rootdev); 1934 struct sysctlnode node = *rnode; 1935 1936 node.sysctl_data = &rootpart; 1937 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1938 } 1939 1940 /* 1941 * sysctl helper function for kern.drivers 1942 */ 1943 static int 1944 sysctl_kern_drivers(SYSCTLFN_ARGS) 1945 { 1946 int error; 1947 size_t buflen; 1948 struct kinfo_drivers kd; 1949 char *start, *where; 1950 const char *dname; 1951 int i; 1952 extern struct devsw_conv *devsw_conv; 1953 extern int max_devsw_convs; 1954 1955 if (newp != NULL || namelen != 0) 1956 return (EINVAL); 1957 1958 start = where = oldp; 1959 buflen = *oldlenp; 1960 if (where == NULL) { 1961 *oldlenp = max_devsw_convs * sizeof kd; 1962 return 0; 1963 } 1964 1965 /* 1966 * An array of kinfo_drivers structures 1967 */ 1968 error = 0; 1969 for (i = 0; i < max_devsw_convs; i++) { 1970 dname = devsw_conv[i].d_name; 1971 if (dname == NULL) 1972 continue; 1973 if (buflen < sizeof kd) { 1974 error = ENOMEM; 1975 break; 1976 } 1977 memset(&kd, 0, sizeof(kd)); 1978 kd.d_bmajor = devsw_conv[i].d_bmajor; 1979 kd.d_cmajor = devsw_conv[i].d_cmajor; 1980 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1981 error = copyout(&kd, where, sizeof kd); 1982 if (error != 0) 1983 break; 1984 buflen -= sizeof kd; 1985 where += sizeof kd; 1986 } 1987 *oldlenp = where - start; 1988 return error; 1989 } 1990 1991 /* 1992 * sysctl helper function for kern.file2 1993 */ 1994 static int 1995 sysctl_kern_file2(SYSCTLFN_ARGS) 1996 { 1997 struct proc *p; 1998 struct file *fp; 1999 struct filedesc *fd; 2000 struct kinfo_file kf; 2001 char *dp; 2002 u_int i, op; 2003 size_t len, needed, elem_size, out_size; 2004 int error, arg, elem_count; 2005 2006 if (namelen == 1 && name[0] == CTL_QUERY) 2007 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2008 2009 if (namelen != 4) 2010 return (EINVAL); 2011 2012 error = 0; 2013 dp = oldp; 2014 len = (oldp != NULL) ? *oldlenp : 0; 2015 op = name[0]; 2016 arg = name[1]; 2017 elem_size = name[2]; 2018 elem_count = name[3]; 2019 out_size = MIN(sizeof(kf), elem_size); 2020 needed = 0; 2021 2022 if (elem_size < 1 || elem_count < 0) 2023 return (EINVAL); 2024 2025 switch (op) { 2026 case KERN_FILE_BYFILE: 2027 /* 2028 * doesn't use arg so it must be zero 2029 */ 2030 if (arg != 0) 2031 return (EINVAL); 2032 LIST_FOREACH(fp, &filehead, f_list) { 2033 if (kauth_authorize_process(l->l_proc->p_cred, 2034 KAUTH_PROCESS_CANSEE, l->l_proc, fp->f_cred, NULL, 2035 NULL) != 0) 2036 continue; 2037 if (len >= elem_size && elem_count > 0) { 2038 fill_file(&kf, fp, NULL, 0); 2039 error = copyout(&kf, dp, out_size); 2040 if (error) 2041 break; 2042 dp += elem_size; 2043 len -= elem_size; 2044 } 2045 if (elem_count > 0) { 2046 needed += elem_size; 2047 if (elem_count != INT_MAX) 2048 elem_count--; 2049 } 2050 } 2051 break; 2052 case KERN_FILE_BYPID: 2053 if (arg < -1) 2054 /* -1 means all processes */ 2055 return (EINVAL); 2056 proclist_lock_read(); 2057 PROCLIST_FOREACH(p, &allproc) { 2058 if (p->p_stat == SIDL) 2059 /* skip embryonic processes */ 2060 continue; 2061 if (kauth_authorize_process(l->l_proc->p_cred, 2062 KAUTH_PROCESS_CANSEE, l->l_proc, p->p_cred, 2063 NULL, NULL) != 0) 2064 continue; 2065 if (arg > 0 && p->p_pid != arg) 2066 /* pick only the one we want */ 2067 /* XXX want 0 to mean "kernel files" */ 2068 continue; 2069 fd = p->p_fd; 2070 for (i = 0; i < fd->fd_nfiles; i++) { 2071 fp = fd->fd_ofiles[i]; 2072 if (fp == NULL || !FILE_IS_USABLE(fp)) 2073 continue; 2074 if (len >= elem_size && elem_count > 0) { 2075 fill_file(&kf, fd->fd_ofiles[i], 2076 p, i); 2077 error = copyout(&kf, dp, out_size); 2078 if (error) 2079 break; 2080 dp += elem_size; 2081 len -= elem_size; 2082 } 2083 if (elem_count > 0) { 2084 needed += elem_size; 2085 if (elem_count != INT_MAX) 2086 elem_count--; 2087 } 2088 } 2089 } 2090 proclist_unlock_read(); 2091 break; 2092 default: 2093 return (EINVAL); 2094 } 2095 2096 if (oldp == NULL) 2097 needed += KERN_FILESLOP * elem_size; 2098 *oldlenp = needed; 2099 2100 return (error); 2101 } 2102 2103 static void 2104 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2105 { 2106 2107 memset(kp, 0, sizeof(*kp)); 2108 2109 kp->ki_fileaddr = PTRTOUINT64(fp); 2110 kp->ki_flag = fp->f_flag; 2111 kp->ki_iflags = fp->f_iflags; 2112 kp->ki_ftype = fp->f_type; 2113 kp->ki_count = fp->f_count; 2114 kp->ki_msgcount = fp->f_msgcount; 2115 kp->ki_usecount = fp->f_usecount; 2116 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2117 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2118 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2119 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2120 kp->ki_foffset = fp->f_offset; 2121 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2122 2123 /* vnode information to glue this file to something */ 2124 if (fp->f_type == DTYPE_VNODE) { 2125 struct vnode *vp = (struct vnode *)fp->f_data; 2126 2127 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2128 kp->ki_vsize = vp->v_size; 2129 kp->ki_vtype = vp->v_type; 2130 kp->ki_vtag = vp->v_tag; 2131 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2132 } 2133 2134 /* process information when retrieved via KERN_FILE_BYPID */ 2135 if (p) { 2136 kp->ki_pid = p->p_pid; 2137 kp->ki_fd = i; 2138 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2139 } 2140 } 2141 2142 static int 2143 sysctl_doeproc(SYSCTLFN_ARGS) 2144 { 2145 struct eproc eproc; 2146 struct kinfo_proc2 kproc2; 2147 struct kinfo_proc *dp; 2148 struct proc *p; 2149 const struct proclist_desc *pd; 2150 char *where, *dp2; 2151 int type, op, arg; 2152 u_int elem_size, elem_count; 2153 size_t buflen, needed; 2154 int error; 2155 2156 if (namelen == 1 && name[0] == CTL_QUERY) 2157 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2158 2159 dp = oldp; 2160 dp2 = where = oldp; 2161 buflen = where != NULL ? *oldlenp : 0; 2162 error = 0; 2163 needed = 0; 2164 type = rnode->sysctl_num; 2165 2166 if (type == KERN_PROC) { 2167 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2168 return (EINVAL); 2169 op = name[0]; 2170 if (op != KERN_PROC_ALL) 2171 arg = name[1]; 2172 else 2173 arg = 0; /* Quell compiler warning */ 2174 elem_size = elem_count = 0; /* Ditto */ 2175 } else { 2176 if (namelen != 4) 2177 return (EINVAL); 2178 op = name[0]; 2179 arg = name[1]; 2180 elem_size = name[2]; 2181 elem_count = name[3]; 2182 } 2183 2184 proclist_lock_read(); 2185 2186 pd = proclists; 2187 again: 2188 PROCLIST_FOREACH(p, pd->pd_list) { 2189 /* 2190 * Skip embryonic processes. 2191 */ 2192 if (p->p_stat == SIDL) 2193 continue; 2194 2195 if (kauth_authorize_process(l->l_proc->p_cred, 2196 KAUTH_PROCESS_CANSEE, l->l_proc, p->p_cred, 2197 NULL, NULL) != 0) 2198 continue; 2199 2200 /* 2201 * TODO - make more efficient (see notes below). 2202 * do by session. 2203 */ 2204 switch (op) { 2205 2206 case KERN_PROC_PID: 2207 /* could do this with just a lookup */ 2208 if (p->p_pid != (pid_t)arg) 2209 continue; 2210 break; 2211 2212 case KERN_PROC_PGRP: 2213 /* could do this by traversing pgrp */ 2214 if (p->p_pgrp->pg_id != (pid_t)arg) 2215 continue; 2216 break; 2217 2218 case KERN_PROC_SESSION: 2219 if (p->p_session->s_sid != (pid_t)arg) 2220 continue; 2221 break; 2222 2223 case KERN_PROC_TTY: 2224 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2225 if ((p->p_flag & P_CONTROLT) == 0 || 2226 p->p_session->s_ttyp == NULL || 2227 p->p_session->s_ttyvp != NULL) 2228 continue; 2229 } else if ((p->p_flag & P_CONTROLT) == 0 || 2230 p->p_session->s_ttyp == NULL) { 2231 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2232 continue; 2233 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2234 continue; 2235 break; 2236 2237 case KERN_PROC_UID: 2238 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2239 continue; 2240 break; 2241 2242 case KERN_PROC_RUID: 2243 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2244 continue; 2245 break; 2246 2247 case KERN_PROC_GID: 2248 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2249 continue; 2250 break; 2251 2252 case KERN_PROC_RGID: 2253 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2254 continue; 2255 break; 2256 2257 case KERN_PROC_ALL: 2258 /* allow everything */ 2259 break; 2260 2261 default: 2262 error = EINVAL; 2263 goto cleanup; 2264 } 2265 if (type == KERN_PROC) { 2266 if (buflen >= sizeof(struct kinfo_proc)) { 2267 fill_eproc(p, &eproc); 2268 error = copyout(p, &dp->kp_proc, 2269 sizeof(struct proc)); 2270 if (error) 2271 goto cleanup; 2272 error = copyout(&eproc, &dp->kp_eproc, 2273 sizeof(eproc)); 2274 if (error) 2275 goto cleanup; 2276 dp++; 2277 buflen -= sizeof(struct kinfo_proc); 2278 } 2279 needed += sizeof(struct kinfo_proc); 2280 } else { /* KERN_PROC2 */ 2281 if (buflen >= elem_size && elem_count > 0) { 2282 fill_kproc2(p, &kproc2); 2283 /* 2284 * Copy out elem_size, but not larger than 2285 * the size of a struct kinfo_proc2. 2286 */ 2287 error = copyout(&kproc2, dp2, 2288 min(sizeof(kproc2), elem_size)); 2289 if (error) 2290 goto cleanup; 2291 dp2 += elem_size; 2292 buflen -= elem_size; 2293 elem_count--; 2294 } 2295 needed += elem_size; 2296 } 2297 } 2298 pd++; 2299 if (pd->pd_list != NULL) 2300 goto again; 2301 proclist_unlock_read(); 2302 2303 if (where != NULL) { 2304 if (type == KERN_PROC) 2305 *oldlenp = (char *)dp - where; 2306 else 2307 *oldlenp = dp2 - where; 2308 if (needed > *oldlenp) 2309 return (ENOMEM); 2310 } else { 2311 needed += KERN_PROCSLOP; 2312 *oldlenp = needed; 2313 } 2314 return (0); 2315 cleanup: 2316 proclist_unlock_read(); 2317 return (error); 2318 } 2319 2320 /* 2321 * sysctl helper routine for kern.proc_args pseudo-subtree. 2322 */ 2323 static int 2324 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2325 { 2326 struct ps_strings pss; 2327 struct proc *p, *up = l->l_proc; 2328 size_t len, upper_bound, xlen, i; 2329 struct uio auio; 2330 struct iovec aiov; 2331 vaddr_t argv; 2332 pid_t pid; 2333 int nargv, type, error; 2334 char *arg; 2335 char *tmp; 2336 struct vmspace *vmspace; 2337 vaddr_t psstr_addr; 2338 vaddr_t offsetn; 2339 vaddr_t offsetv; 2340 2341 if (namelen == 1 && name[0] == CTL_QUERY) 2342 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2343 2344 if (newp != NULL || namelen != 2) 2345 return (EINVAL); 2346 pid = name[0]; 2347 type = name[1]; 2348 2349 switch (type) { 2350 case KERN_PROC_ARGV: 2351 case KERN_PROC_NARGV: 2352 case KERN_PROC_ENV: 2353 case KERN_PROC_NENV: 2354 /* ok */ 2355 break; 2356 default: 2357 return (EINVAL); 2358 } 2359 2360 proclist_lock_read(); 2361 2362 /* check pid */ 2363 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2364 error = EINVAL; 2365 goto out_locked; 2366 } 2367 2368 if (kauth_authorize_process(l->l_proc->p_cred, 2369 KAUTH_PROCESS_CANSEE, l->l_proc, p->p_cred, NULL, NULL) != 0) { 2370 error = EPERM; 2371 goto out_locked; 2372 } 2373 2374 /* only root or same user change look at the environment */ 2375 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2376 if (kauth_cred_geteuid(up->p_cred) != 0) { 2377 if (kauth_cred_getuid(up->p_cred) != kauth_cred_getuid(p->p_cred) || 2378 kauth_cred_getuid(up->p_cred) != kauth_cred_getsvuid(p->p_cred)) { 2379 error = EPERM; 2380 goto out_locked; 2381 } 2382 } 2383 } 2384 2385 if (oldp == NULL) { 2386 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2387 *oldlenp = sizeof (int); 2388 else 2389 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2390 error = 0; 2391 goto out_locked; 2392 } 2393 2394 /* 2395 * Zombies don't have a stack, so we can't read their psstrings. 2396 * System processes also don't have a user stack. 2397 */ 2398 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) { 2399 error = EINVAL; 2400 goto out_locked; 2401 } 2402 2403 /* 2404 * Lock the process down in memory. 2405 */ 2406 /* XXXCDC: how should locking work here? */ 2407 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2408 error = EFAULT; 2409 goto out_locked; 2410 } 2411 2412 psstr_addr = (vaddr_t)p->p_psstr; 2413 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2414 offsetn = p->p_psnargv; 2415 offsetv = p->p_psargv; 2416 } else { 2417 offsetn = p->p_psnenv; 2418 offsetv = p->p_psenv; 2419 } 2420 vmspace = p->p_vmspace; 2421 vmspace->vm_refcnt++; /* XXX */ 2422 2423 proclist_unlock_read(); 2424 2425 /* 2426 * Allocate a temporary buffer to hold the arguments. 2427 */ 2428 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2429 2430 /* 2431 * Read in the ps_strings structure. 2432 */ 2433 aiov.iov_base = &pss; 2434 aiov.iov_len = sizeof(pss); 2435 auio.uio_iov = &aiov; 2436 auio.uio_iovcnt = 1; 2437 auio.uio_offset = psstr_addr; 2438 auio.uio_resid = sizeof(pss); 2439 auio.uio_rw = UIO_READ; 2440 UIO_SETUP_SYSSPACE(&auio); 2441 error = uvm_io(&vmspace->vm_map, &auio); 2442 if (error) 2443 goto done; 2444 2445 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2446 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2447 error = copyout(&nargv, oldp, sizeof(nargv)); 2448 *oldlenp = sizeof(nargv); 2449 goto done; 2450 } 2451 /* 2452 * Now read the address of the argument vector. 2453 */ 2454 switch (type) { 2455 case KERN_PROC_ARGV: 2456 /* XXX compat32 stuff here */ 2457 /* FALLTHROUGH */ 2458 case KERN_PROC_ENV: 2459 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2460 break; 2461 default: 2462 return (EINVAL); 2463 } 2464 auio.uio_offset = (off_t)(unsigned long)tmp; 2465 aiov.iov_base = &argv; 2466 aiov.iov_len = sizeof(argv); 2467 auio.uio_iov = &aiov; 2468 auio.uio_iovcnt = 1; 2469 auio.uio_resid = sizeof(argv); 2470 auio.uio_rw = UIO_READ; 2471 UIO_SETUP_SYSSPACE(&auio); 2472 error = uvm_io(&vmspace->vm_map, &auio); 2473 if (error) 2474 goto done; 2475 2476 /* 2477 * Now copy in the actual argument vector, one page at a time, 2478 * since we don't know how long the vector is (though, we do 2479 * know how many NUL-terminated strings are in the vector). 2480 */ 2481 len = 0; 2482 upper_bound = *oldlenp; 2483 for (; nargv != 0 && len < upper_bound; len += xlen) { 2484 aiov.iov_base = arg; 2485 aiov.iov_len = PAGE_SIZE; 2486 auio.uio_iov = &aiov; 2487 auio.uio_iovcnt = 1; 2488 auio.uio_offset = argv + len; 2489 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2490 auio.uio_resid = xlen; 2491 auio.uio_rw = UIO_READ; 2492 UIO_SETUP_SYSSPACE(&auio); 2493 error = uvm_io(&vmspace->vm_map, &auio); 2494 if (error) 2495 goto done; 2496 2497 for (i = 0; i < xlen && nargv != 0; i++) { 2498 if (arg[i] == '\0') 2499 nargv--; /* one full string */ 2500 } 2501 2502 /* 2503 * Make sure we don't copyout past the end of the user's 2504 * buffer. 2505 */ 2506 if (len + i > upper_bound) 2507 i = upper_bound - len; 2508 2509 error = copyout(arg, (char *)oldp + len, i); 2510 if (error) 2511 break; 2512 2513 if (nargv == 0) { 2514 len += i; 2515 break; 2516 } 2517 } 2518 *oldlenp = len; 2519 2520 done: 2521 uvmspace_free(vmspace); 2522 2523 free(arg, M_TEMP); 2524 return error; 2525 2526 out_locked: 2527 proclist_unlock_read(); 2528 return error; 2529 } 2530 2531 /* 2532 * Sysctl helper routine for Verified Exec. 2533 */ 2534 #ifdef VERIFIED_EXEC 2535 static int 2536 sysctl_kern_veriexec(SYSCTLFN_ARGS) 2537 { 2538 int newval, error; 2539 int *var = NULL, raise_only = 0; 2540 struct sysctlnode node; 2541 2542 node = *rnode; 2543 2544 switch (rnode->sysctl_num) { 2545 case VERIEXEC_STRICT: 2546 raise_only = 1; 2547 var = &veriexec_strict; 2548 break; 2549 case VERIEXEC_ALGORITHMS: 2550 node.sysctl_data = veriexec_fp_names; 2551 node.sysctl_size = strlen(veriexec_fp_names) + 1; 2552 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2553 default: 2554 return (EINVAL); 2555 } 2556 2557 newval = *var; 2558 2559 node.sysctl_data = &newval; 2560 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2561 if (error || newp == NULL) { 2562 return (error); 2563 } 2564 2565 if (raise_only && (newval < *var)) 2566 return (EPERM); 2567 2568 *var = newval; 2569 2570 return (error); 2571 } 2572 #endif /* VERIFIED_EXEC */ 2573 2574 static int 2575 sysctl_security_setidcore(SYSCTLFN_ARGS) 2576 { 2577 int newsize, error; 2578 struct sysctlnode node; 2579 2580 node = *rnode; 2581 node.sysctl_data = &newsize; 2582 newsize = *(int *)rnode->sysctl_data; 2583 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2584 if (error || newp == NULL) 2585 return error; 2586 2587 if (securelevel > 0) 2588 return (EPERM); 2589 2590 *(int *)rnode->sysctl_data = newsize; 2591 2592 return 0; 2593 } 2594 2595 static int 2596 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2597 { 2598 int error; 2599 char newsetidcorename[MAXPATHLEN]; 2600 struct sysctlnode node; 2601 2602 node = *rnode; 2603 node.sysctl_data = &newsetidcorename[0]; 2604 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2605 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2606 if (error || newp == NULL) 2607 return (error); 2608 2609 if (securelevel > 0) 2610 return (EPERM); 2611 2612 if (strlen(newsetidcorename) == 0) 2613 return (EINVAL); 2614 2615 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2616 2617 return (0); 2618 } 2619 2620 /* 2621 * sysctl helper routine for kern.cp_id node. maps cpus to their 2622 * cpuids. 2623 */ 2624 static int 2625 sysctl_kern_cpid(SYSCTLFN_ARGS) 2626 { 2627 struct sysctlnode node = *rnode; 2628 2629 #ifndef MULTIPROCESSOR 2630 uint64_t id; 2631 2632 if (namelen == 1) { 2633 if (name[0] != 0) 2634 return (ENOENT); 2635 /* 2636 * you're allowed to ask for the zero'th processor 2637 */ 2638 name++; 2639 namelen--; 2640 } 2641 node.sysctl_data = &id; 2642 node.sysctl_size = sizeof(id); 2643 id = cpu_number(); 2644 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2645 2646 #else /* MULTIPROCESSOR */ 2647 uint64_t *cp_id = NULL; 2648 int error, n = sysctl_ncpus(); 2649 struct cpu_info *ci; 2650 CPU_INFO_ITERATOR cii; 2651 2652 /* 2653 * here you may either retrieve a single cpu id or the whole 2654 * set. the size you get back when probing depends on what 2655 * you ask for. 2656 */ 2657 switch (namelen) { 2658 case 0: 2659 node.sysctl_size = n * sizeof(uint64_t); 2660 n = -2; /* ALL */ 2661 break; 2662 case 1: 2663 if (name[0] < 0 || name[0] >= n) 2664 return (ENOENT); /* ENOSUCHPROCESSOR */ 2665 node.sysctl_size = sizeof(uint64_t); 2666 n = name[0]; 2667 /* 2668 * adjust these so that sysctl_lookup() will be happy 2669 */ 2670 name++; 2671 namelen--; 2672 break; 2673 default: 2674 return (EINVAL); 2675 } 2676 2677 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2678 if (cp_id == NULL) 2679 return (ENOMEM); 2680 node.sysctl_data = cp_id; 2681 memset(cp_id, 0, node.sysctl_size); 2682 2683 for (CPU_INFO_FOREACH(cii, ci)) { 2684 if (n <= 0) 2685 cp_id[0] = ci->ci_cpuid; 2686 /* 2687 * if a specific processor was requested and we just 2688 * did it, we're done here 2689 */ 2690 if (n == 0) 2691 break; 2692 /* 2693 * if doing "all", skip to next cp_id slot for next processor 2694 */ 2695 if (n == -2) 2696 cp_id++; 2697 /* 2698 * if we're doing a specific processor, we're one 2699 * processor closer 2700 */ 2701 if (n > 0) 2702 n--; 2703 } 2704 2705 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2706 free(node.sysctl_data, M_TEMP); 2707 return (error); 2708 2709 #endif /* MULTIPROCESSOR */ 2710 } 2711 2712 /* 2713 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2714 * calculate on the fly taking into account integer overflow and the 2715 * current wired count. 2716 */ 2717 static int 2718 sysctl_hw_usermem(SYSCTLFN_ARGS) 2719 { 2720 u_int ui; 2721 u_quad_t uq; 2722 struct sysctlnode node; 2723 2724 node = *rnode; 2725 switch (rnode->sysctl_num) { 2726 case HW_USERMEM: 2727 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2728 ui = UINT_MAX; 2729 else 2730 ui *= PAGE_SIZE; 2731 node.sysctl_data = &ui; 2732 break; 2733 case HW_USERMEM64: 2734 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2735 node.sysctl_data = &uq; 2736 break; 2737 default: 2738 return (EINVAL); 2739 } 2740 2741 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2742 } 2743 2744 /* 2745 * sysctl helper routine for kern.cnmagic node. pulls the old value 2746 * out, encoded, and stuffs the new value in for decoding. 2747 */ 2748 static int 2749 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2750 { 2751 char magic[CNS_LEN]; 2752 int error; 2753 struct sysctlnode node; 2754 2755 if (oldp) 2756 cn_get_magic(magic, CNS_LEN); 2757 node = *rnode; 2758 node.sysctl_data = &magic[0]; 2759 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2760 if (error || newp == NULL) 2761 return (error); 2762 2763 return (cn_set_magic(magic)); 2764 } 2765 2766 static int 2767 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2768 { 2769 int ncpu; 2770 struct sysctlnode node; 2771 2772 ncpu = sysctl_ncpus(); 2773 node = *rnode; 2774 node.sysctl_data = &ncpu; 2775 2776 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2777 } 2778 2779 2780 /* 2781 * ******************************************************************** 2782 * section 3: public helper routines that are used for more than one 2783 * node 2784 * ******************************************************************** 2785 */ 2786 2787 /* 2788 * sysctl helper routine for the kern.root_device node and some ports' 2789 * machdep.root_device nodes. 2790 */ 2791 int 2792 sysctl_root_device(SYSCTLFN_ARGS) 2793 { 2794 struct sysctlnode node; 2795 2796 node = *rnode; 2797 node.sysctl_data = root_device->dv_xname; 2798 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2799 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2800 } 2801 2802 /* 2803 * sysctl helper routine for kern.consdev, dependent on the current 2804 * state of the console. also used for machdep.console_device on some 2805 * ports. 2806 */ 2807 int 2808 sysctl_consdev(SYSCTLFN_ARGS) 2809 { 2810 dev_t consdev; 2811 struct sysctlnode node; 2812 2813 if (cn_tab != NULL) 2814 consdev = cn_tab->cn_dev; 2815 else 2816 consdev = NODEV; 2817 node = *rnode; 2818 node.sysctl_data = &consdev; 2819 node.sysctl_size = sizeof(consdev); 2820 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2821 } 2822 2823 /* 2824 * ******************************************************************** 2825 * section 4: support for some helpers 2826 * ******************************************************************** 2827 */ 2828 2829 /* 2830 * Fill in a kinfo_proc2 structure for the specified process. 2831 */ 2832 static void 2833 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2834 { 2835 struct tty *tp; 2836 struct lwp *l; 2837 struct timeval ut, st; 2838 2839 memset(ki, 0, sizeof(*ki)); 2840 2841 ki->p_paddr = PTRTOUINT64(p); 2842 ki->p_fd = PTRTOUINT64(p->p_fd); 2843 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2844 ki->p_stats = PTRTOUINT64(p->p_stats); 2845 ki->p_limit = PTRTOUINT64(p->p_limit); 2846 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2847 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2848 ki->p_sess = PTRTOUINT64(p->p_session); 2849 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2850 ki->p_ru = PTRTOUINT64(p->p_ru); 2851 2852 ki->p_eflag = 0; 2853 ki->p_exitsig = p->p_exitsig; 2854 ki->p_flag = p->p_flag; 2855 2856 ki->p_pid = p->p_pid; 2857 if (p->p_pptr) 2858 ki->p_ppid = p->p_pptr->p_pid; 2859 else 2860 ki->p_ppid = 0; 2861 ki->p_sid = p->p_session->s_sid; 2862 ki->p__pgid = p->p_pgrp->pg_id; 2863 2864 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2865 2866 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2867 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2868 ki->p_gid = kauth_cred_getegid(p->p_cred); 2869 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2870 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2871 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2872 2873 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2874 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2875 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0]))); 2876 2877 ki->p_jobc = p->p_pgrp->pg_jobc; 2878 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2879 ki->p_tdev = tp->t_dev; 2880 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2881 ki->p_tsess = PTRTOUINT64(tp->t_session); 2882 } else { 2883 ki->p_tdev = NODEV; 2884 } 2885 2886 ki->p_estcpu = p->p_estcpu; 2887 ki->p_rtime_sec = p->p_rtime.tv_sec; 2888 ki->p_rtime_usec = p->p_rtime.tv_usec; 2889 ki->p_cpticks = p->p_cpticks; 2890 ki->p_pctcpu = p->p_pctcpu; 2891 2892 ki->p_uticks = p->p_uticks; 2893 ki->p_sticks = p->p_sticks; 2894 ki->p_iticks = p->p_iticks; 2895 2896 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2897 ki->p_traceflag = p->p_traceflag; 2898 2899 2900 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2901 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2902 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2903 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2904 2905 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2906 ki->p_realstat = p->p_stat; 2907 ki->p_nice = p->p_nice; 2908 2909 ki->p_xstat = p->p_xstat; 2910 ki->p_acflag = p->p_acflag; 2911 2912 strncpy(ki->p_comm, p->p_comm, 2913 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2914 2915 strncpy(ki->p_login, p->p_session->s_login, 2916 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2917 2918 ki->p_nlwps = p->p_nlwps; 2919 ki->p_nrlwps = p->p_nrlwps; 2920 ki->p_realflag = p->p_flag; 2921 2922 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2923 ki->p_vm_rssize = 0; 2924 ki->p_vm_tsize = 0; 2925 ki->p_vm_dsize = 0; 2926 ki->p_vm_ssize = 0; 2927 l = NULL; 2928 } else { 2929 struct vmspace *vm = p->p_vmspace; 2930 2931 ki->p_vm_rssize = vm_resident_count(vm); 2932 ki->p_vm_tsize = vm->vm_tsize; 2933 ki->p_vm_dsize = vm->vm_dsize; 2934 ki->p_vm_ssize = vm->vm_ssize; 2935 2936 /* Pick a "representative" LWP */ 2937 l = proc_representative_lwp(p); 2938 ki->p_forw = PTRTOUINT64(l->l_forw); 2939 ki->p_back = PTRTOUINT64(l->l_back); 2940 ki->p_addr = PTRTOUINT64(l->l_addr); 2941 ki->p_stat = l->l_stat; 2942 ki->p_flag |= l->l_flag & P_SHARED; 2943 ki->p_swtime = l->l_swtime; 2944 ki->p_slptime = l->l_slptime; 2945 if (l->l_stat == LSONPROC) { 2946 KDASSERT(l->l_cpu != NULL); 2947 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2948 } else 2949 ki->p_schedflags = 0; 2950 ki->p_holdcnt = l->l_holdcnt; 2951 ki->p_priority = l->l_priority; 2952 ki->p_usrpri = l->l_usrpri; 2953 if (l->l_wmesg) 2954 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2955 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2956 2957 } 2958 2959 if (p->p_session->s_ttyvp) 2960 ki->p_eflag |= EPROC_CTTY; 2961 if (SESS_LEADER(p)) 2962 ki->p_eflag |= EPROC_SLEADER; 2963 2964 /* XXX Is this double check necessary? */ 2965 if (P_ZOMBIE(p)) { 2966 ki->p_uvalid = 0; 2967 } else { 2968 ki->p_uvalid = 1; 2969 2970 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2971 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2972 2973 calcru(p, &ut, &st, 0); 2974 ki->p_uutime_sec = ut.tv_sec; 2975 ki->p_uutime_usec = ut.tv_usec; 2976 ki->p_ustime_sec = st.tv_sec; 2977 ki->p_ustime_usec = st.tv_usec; 2978 2979 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2980 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2981 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2982 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2983 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2984 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2985 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2986 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2987 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2988 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2989 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2990 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2991 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 2992 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 2993 2994 timeradd(&p->p_stats->p_cru.ru_utime, 2995 &p->p_stats->p_cru.ru_stime, &ut); 2996 ki->p_uctime_sec = ut.tv_sec; 2997 ki->p_uctime_usec = ut.tv_usec; 2998 } 2999 #ifdef MULTIPROCESSOR 3000 if (l && l->l_cpu != NULL) 3001 ki->p_cpuid = l->l_cpu->ci_cpuid; 3002 else 3003 #endif 3004 ki->p_cpuid = KI_NOCPU; 3005 } 3006 3007 /* 3008 * Fill in a kinfo_lwp structure for the specified lwp. 3009 */ 3010 static void 3011 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3012 { 3013 3014 kl->l_forw = PTRTOUINT64(l->l_forw); 3015 kl->l_back = PTRTOUINT64(l->l_back); 3016 kl->l_laddr = PTRTOUINT64(l); 3017 kl->l_addr = PTRTOUINT64(l->l_addr); 3018 kl->l_stat = l->l_stat; 3019 kl->l_lid = l->l_lid; 3020 kl->l_flag = l->l_flag; 3021 3022 kl->l_swtime = l->l_swtime; 3023 kl->l_slptime = l->l_slptime; 3024 if (l->l_stat == LSONPROC) { 3025 KDASSERT(l->l_cpu != NULL); 3026 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3027 } else 3028 kl->l_schedflags = 0; 3029 kl->l_holdcnt = l->l_holdcnt; 3030 kl->l_priority = l->l_priority; 3031 kl->l_usrpri = l->l_usrpri; 3032 if (l->l_wmesg) 3033 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3034 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3035 #ifdef MULTIPROCESSOR 3036 if (l->l_cpu != NULL) 3037 kl->l_cpuid = l->l_cpu->ci_cpuid; 3038 else 3039 #endif 3040 kl->l_cpuid = KI_NOCPU; 3041 } 3042 3043 /* 3044 * Fill in an eproc structure for the specified process. 3045 */ 3046 void 3047 fill_eproc(struct proc *p, struct eproc *ep) 3048 { 3049 struct tty *tp; 3050 struct lwp *l; 3051 struct pcred pc; 3052 struct ucred uc; 3053 3054 ep->e_paddr = p; 3055 ep->e_sess = p->p_session; 3056 kauth_cred_topcred(p->p_cred, &pc); 3057 kauth_cred_toucred(p->p_cred, &uc); 3058 ep->e_pcred = pc; 3059 ep->e_ucred = uc; 3060 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 3061 ep->e_vm.vm_rssize = 0; 3062 ep->e_vm.vm_tsize = 0; 3063 ep->e_vm.vm_dsize = 0; 3064 ep->e_vm.vm_ssize = 0; 3065 /* ep->e_vm.vm_pmap = XXX; */ 3066 } else { 3067 struct vmspace *vm = p->p_vmspace; 3068 3069 ep->e_vm.vm_rssize = vm_resident_count(vm); 3070 ep->e_vm.vm_tsize = vm->vm_tsize; 3071 ep->e_vm.vm_dsize = vm->vm_dsize; 3072 ep->e_vm.vm_ssize = vm->vm_ssize; 3073 3074 /* Pick a "representative" LWP */ 3075 l = proc_representative_lwp(p); 3076 3077 if (l->l_wmesg) 3078 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3079 } 3080 if (p->p_pptr) 3081 ep->e_ppid = p->p_pptr->p_pid; 3082 else 3083 ep->e_ppid = 0; 3084 ep->e_pgid = p->p_pgrp->pg_id; 3085 ep->e_sid = ep->e_sess->s_sid; 3086 ep->e_jobc = p->p_pgrp->pg_jobc; 3087 if ((p->p_flag & P_CONTROLT) && 3088 (tp = ep->e_sess->s_ttyp)) { 3089 ep->e_tdev = tp->t_dev; 3090 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3091 ep->e_tsess = tp->t_session; 3092 } else 3093 ep->e_tdev = NODEV; 3094 3095 ep->e_xsize = ep->e_xrssize = 0; 3096 ep->e_xccount = ep->e_xswrss = 0; 3097 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3098 if (SESS_LEADER(p)) 3099 ep->e_flag |= EPROC_SLEADER; 3100 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3101 } 3102
Indexes created Wed Oct 01 15:09:59 GMT 2025