init_sysctl.c revision 1.69
1 /* $NetBSD: init_sysctl.c,v 1.69 2006/06/13 13:23:03 yamt 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 1.69 2006/06/13 13:23:03 yamt 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 #include <sys/kauth.h> 79 80 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 81 #include <sys/ipc.h> 82 #endif 83 #ifdef SYSVMSG 84 #include <sys/msg.h> 85 #endif 86 #ifdef SYSVSEM 87 #include <sys/sem.h> 88 #endif 89 #ifdef SYSVSHM 90 #include <sys/shm.h> 91 #endif 92 93 #include <machine/cpu.h> 94 95 /* XXX this should not be here */ 96 int security_curtain = 0; 97 int security_setidcore_dump; 98 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 99 uid_t security_setidcore_owner = 0; 100 gid_t security_setidcore_group = 0; 101 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 102 103 /* 104 * try over estimating by 5 procs/lwps 105 */ 106 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 107 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 108 109 #ifndef MULTIPROCESSOR 110 #define sysctl_ncpus() (1) 111 #else /* MULTIPROCESSOR */ 112 #ifndef CPU_INFO_FOREACH 113 #define CPU_INFO_ITERATOR int 114 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 115 #endif 116 static int 117 sysctl_ncpus(void) 118 { 119 struct cpu_info *ci; 120 CPU_INFO_ITERATOR cii; 121 122 int ncpus = 0; 123 for (CPU_INFO_FOREACH(cii, ci)) 124 ncpus++; 125 return (ncpus); 126 } 127 #endif /* MULTIPROCESSOR */ 128 129 #ifdef DIAGNOSTIC 130 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 131 #endif 132 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 133 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 134 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 135 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 136 static int sysctl_setlen(SYSCTLFN_PROTO); 137 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 138 static int sysctl_kern_file(SYSCTLFN_PROTO); 139 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 140 static int sysctl_msgbuf(SYSCTLFN_PROTO); 141 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 142 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 143 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 144 static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 145 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 146 #if NPTY > 0 147 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 148 #endif /* NPTY > 0 */ 149 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 150 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 151 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 152 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 153 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 154 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 155 static int sysctl_kern_file2(SYSCTLFN_PROTO); 156 #ifdef VERIFIED_EXEC 157 static int sysctl_kern_veriexec(SYSCTLFN_PROTO); 158 #endif 159 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 160 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 161 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 162 static int sysctl_doeproc(SYSCTLFN_PROTO); 163 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 164 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 165 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 166 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 167 168 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 169 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 170 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 171 int); 172 173 /* 174 * ******************************************************************** 175 * section 1: setup routines 176 * ******************************************************************** 177 * these functions are stuffed into a link set for sysctl setup 178 * functions. they're never called or referenced from anywhere else. 179 * ******************************************************************** 180 */ 181 182 /* 183 * sets up the base nodes... 184 */ 185 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 186 { 187 188 sysctl_createv(clog, 0, NULL, NULL, 189 CTLFLAG_PERMANENT, 190 CTLTYPE_NODE, "kern", 191 SYSCTL_DESCR("High kernel"), 192 NULL, 0, NULL, 0, 193 CTL_KERN, CTL_EOL); 194 sysctl_createv(clog, 0, NULL, NULL, 195 CTLFLAG_PERMANENT, 196 CTLTYPE_NODE, "vm", 197 SYSCTL_DESCR("Virtual memory"), 198 NULL, 0, NULL, 0, 199 CTL_VM, CTL_EOL); 200 sysctl_createv(clog, 0, NULL, NULL, 201 CTLFLAG_PERMANENT, 202 CTLTYPE_NODE, "vfs", 203 SYSCTL_DESCR("Filesystem"), 204 NULL, 0, NULL, 0, 205 CTL_VFS, CTL_EOL); 206 sysctl_createv(clog, 0, NULL, NULL, 207 CTLFLAG_PERMANENT, 208 CTLTYPE_NODE, "net", 209 SYSCTL_DESCR("Networking"), 210 NULL, 0, NULL, 0, 211 CTL_NET, CTL_EOL); 212 sysctl_createv(clog, 0, NULL, NULL, 213 CTLFLAG_PERMANENT, 214 CTLTYPE_NODE, "debug", 215 SYSCTL_DESCR("Debugging"), 216 NULL, 0, NULL, 0, 217 CTL_DEBUG, CTL_EOL); 218 sysctl_createv(clog, 0, NULL, NULL, 219 CTLFLAG_PERMANENT, 220 CTLTYPE_NODE, "hw", 221 SYSCTL_DESCR("Generic CPU, I/O"), 222 NULL, 0, NULL, 0, 223 CTL_HW, CTL_EOL); 224 sysctl_createv(clog, 0, NULL, NULL, 225 CTLFLAG_PERMANENT, 226 CTLTYPE_NODE, "machdep", 227 SYSCTL_DESCR("Machine dependent"), 228 NULL, 0, NULL, 0, 229 CTL_MACHDEP, CTL_EOL); 230 /* 231 * this node is inserted so that the sysctl nodes in libc can 232 * operate. 233 */ 234 sysctl_createv(clog, 0, NULL, NULL, 235 CTLFLAG_PERMANENT, 236 CTLTYPE_NODE, "user", 237 SYSCTL_DESCR("User-level"), 238 NULL, 0, NULL, 0, 239 CTL_USER, CTL_EOL); 240 sysctl_createv(clog, 0, NULL, NULL, 241 CTLFLAG_PERMANENT, 242 CTLTYPE_NODE, "ddb", 243 SYSCTL_DESCR("In-kernel debugger"), 244 NULL, 0, NULL, 0, 245 CTL_DDB, CTL_EOL); 246 sysctl_createv(clog, 0, NULL, NULL, 247 CTLFLAG_PERMANENT, 248 CTLTYPE_NODE, "proc", 249 SYSCTL_DESCR("Per-process"), 250 NULL, 0, NULL, 0, 251 CTL_PROC, CTL_EOL); 252 sysctl_createv(clog, 0, NULL, NULL, 253 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 254 CTLTYPE_NODE, "vendor", 255 SYSCTL_DESCR("Vendor specific"), 256 NULL, 0, NULL, 0, 257 CTL_VENDOR, CTL_EOL); 258 sysctl_createv(clog, 0, NULL, NULL, 259 CTLFLAG_PERMANENT, 260 CTLTYPE_NODE, "emul", 261 SYSCTL_DESCR("Emulation settings"), 262 NULL, 0, NULL, 0, 263 CTL_EMUL, CTL_EOL); 264 sysctl_createv(clog, 0, NULL, NULL, 265 CTLFLAG_PERMANENT, 266 CTLTYPE_NODE, "security", 267 SYSCTL_DESCR("Security"), 268 NULL, 0, NULL, 0, 269 CTL_SECURITY, CTL_EOL); 270 } 271 272 /* 273 * this setup routine is a replacement for kern_sysctl() 274 */ 275 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 276 { 277 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 278 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 279 extern int dumponpanic; /* defined in kern/subr_prf.c */ 280 281 sysctl_createv(clog, 0, NULL, NULL, 282 CTLFLAG_PERMANENT, 283 CTLTYPE_NODE, "kern", NULL, 284 NULL, 0, NULL, 0, 285 CTL_KERN, CTL_EOL); 286 287 sysctl_createv(clog, 0, NULL, NULL, 288 CTLFLAG_PERMANENT, 289 CTLTYPE_STRING, "ostype", 290 SYSCTL_DESCR("Operating system type"), 291 NULL, 0, &ostype, 0, 292 CTL_KERN, KERN_OSTYPE, CTL_EOL); 293 sysctl_createv(clog, 0, NULL, NULL, 294 CTLFLAG_PERMANENT, 295 CTLTYPE_STRING, "osrelease", 296 SYSCTL_DESCR("Operating system release"), 297 NULL, 0, &osrelease, 0, 298 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 299 sysctl_createv(clog, 0, NULL, NULL, 300 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 301 CTLTYPE_INT, "osrevision", 302 SYSCTL_DESCR("Operating system revision"), 303 NULL, __NetBSD_Version__, NULL, 0, 304 CTL_KERN, KERN_OSREV, CTL_EOL); 305 sysctl_createv(clog, 0, NULL, NULL, 306 CTLFLAG_PERMANENT, 307 CTLTYPE_STRING, "version", 308 SYSCTL_DESCR("Kernel version"), 309 NULL, 0, &version, 0, 310 CTL_KERN, KERN_VERSION, CTL_EOL); 311 sysctl_createv(clog, 0, NULL, NULL, 312 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 313 CTLTYPE_INT, "maxvnodes", 314 SYSCTL_DESCR("Maximum number of vnodes"), 315 sysctl_kern_maxvnodes, 0, NULL, 0, 316 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 317 sysctl_createv(clog, 0, NULL, NULL, 318 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 319 CTLTYPE_INT, "maxproc", 320 SYSCTL_DESCR("Maximum number of simultaneous processes"), 321 sysctl_kern_maxproc, 0, NULL, 0, 322 CTL_KERN, KERN_MAXPROC, CTL_EOL); 323 sysctl_createv(clog, 0, NULL, NULL, 324 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 325 CTLTYPE_INT, "maxfiles", 326 SYSCTL_DESCR("Maximum number of open files"), 327 NULL, 0, &maxfiles, 0, 328 CTL_KERN, KERN_MAXFILES, CTL_EOL); 329 sysctl_createv(clog, 0, NULL, NULL, 330 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 331 CTLTYPE_INT, "argmax", 332 SYSCTL_DESCR("Maximum number of bytes of arguments to " 333 "execve(2)"), 334 NULL, ARG_MAX, NULL, 0, 335 CTL_KERN, KERN_ARGMAX, CTL_EOL); 336 sysctl_createv(clog, 0, NULL, NULL, 337 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 338 CTLTYPE_STRING, "hostname", 339 SYSCTL_DESCR("System hostname"), 340 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 341 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 342 sysctl_createv(clog, 0, NULL, NULL, 343 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 344 CTLTYPE_INT, "hostid", 345 SYSCTL_DESCR("System host ID number"), 346 sysctl_kern_hostid, 0, NULL, 0, 347 CTL_KERN, KERN_HOSTID, CTL_EOL); 348 sysctl_createv(clog, 0, NULL, NULL, 349 CTLFLAG_PERMANENT, 350 CTLTYPE_STRUCT, "clockrate", 351 SYSCTL_DESCR("Kernel clock rates"), 352 sysctl_kern_clockrate, 0, NULL, 353 sizeof(struct clockinfo), 354 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 355 sysctl_createv(clog, 0, NULL, NULL, 356 CTLFLAG_PERMANENT, 357 CTLTYPE_INT, "hardclock_ticks", 358 SYSCTL_DESCR("Number of hardclock ticks"), 359 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 360 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 361 sysctl_createv(clog, 0, NULL, NULL, 362 CTLFLAG_PERMANENT, 363 CTLTYPE_STRUCT, "vnode", 364 SYSCTL_DESCR("System vnode table"), 365 sysctl_kern_vnode, 0, NULL, 0, 366 CTL_KERN, KERN_VNODE, CTL_EOL); 367 sysctl_createv(clog, 0, NULL, NULL, 368 CTLFLAG_PERMANENT, 369 CTLTYPE_STRUCT, "file", 370 SYSCTL_DESCR("System open file table"), 371 sysctl_kern_file, 0, NULL, 0, 372 CTL_KERN, KERN_FILE, CTL_EOL); 373 #ifndef GPROF 374 sysctl_createv(clog, 0, NULL, NULL, 375 CTLFLAG_PERMANENT, 376 CTLTYPE_NODE, "profiling", 377 SYSCTL_DESCR("Profiling information (not available)"), 378 sysctl_notavail, 0, NULL, 0, 379 CTL_KERN, KERN_PROF, CTL_EOL); 380 #endif 381 sysctl_createv(clog, 0, NULL, NULL, 382 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 383 CTLTYPE_INT, "posix1version", 384 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 385 "with which the operating system attempts " 386 "to comply"), 387 NULL, _POSIX_VERSION, NULL, 0, 388 CTL_KERN, KERN_POSIX1, CTL_EOL); 389 sysctl_createv(clog, 0, NULL, NULL, 390 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 391 CTLTYPE_INT, "ngroups", 392 SYSCTL_DESCR("Maximum number of supplemental groups"), 393 NULL, NGROUPS_MAX, NULL, 0, 394 CTL_KERN, KERN_NGROUPS, CTL_EOL); 395 sysctl_createv(clog, 0, NULL, NULL, 396 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 397 CTLTYPE_INT, "job_control", 398 SYSCTL_DESCR("Whether job control is available"), 399 NULL, 1, NULL, 0, 400 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 401 sysctl_createv(clog, 0, NULL, NULL, 402 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 403 CTLTYPE_INT, "saved_ids", 404 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 405 "available"), NULL, 406 #ifdef _POSIX_SAVED_IDS 407 1, 408 #else /* _POSIX_SAVED_IDS */ 409 0, 410 #endif /* _POSIX_SAVED_IDS */ 411 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 412 sysctl_createv(clog, 0, NULL, NULL, 413 CTLFLAG_PERMANENT, 414 CTLTYPE_STRUCT, "boottime", 415 SYSCTL_DESCR("System boot time"), 416 NULL, 0, &boottime, sizeof(boottime), 417 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 418 sysctl_createv(clog, 0, NULL, NULL, 419 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 420 CTLTYPE_STRING, "domainname", 421 SYSCTL_DESCR("YP domain name"), 422 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 423 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 424 sysctl_createv(clog, 0, NULL, NULL, 425 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 426 CTLTYPE_INT, "maxpartitions", 427 SYSCTL_DESCR("Maximum number of partitions allowed per " 428 "disk"), 429 NULL, MAXPARTITIONS, NULL, 0, 430 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 431 sysctl_createv(clog, 0, NULL, NULL, 432 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 433 CTLTYPE_INT, "rawpartition", 434 SYSCTL_DESCR("Raw partition of a disk"), 435 NULL, RAW_PART, NULL, 0, 436 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 437 sysctl_createv(clog, 0, NULL, NULL, 438 CTLFLAG_PERMANENT, 439 CTLTYPE_STRUCT, "timex", NULL, 440 sysctl_notavail, 0, NULL, 0, 441 CTL_KERN, KERN_TIMEX, CTL_EOL); 442 sysctl_createv(clog, 0, NULL, NULL, 443 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 444 CTLTYPE_INT, "autonicetime", 445 SYSCTL_DESCR("CPU clock seconds before non-root " 446 "process priority is lowered"), 447 sysctl_kern_autonice, 0, &autonicetime, 0, 448 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 449 sysctl_createv(clog, 0, NULL, NULL, 450 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 451 CTLTYPE_INT, "autoniceval", 452 SYSCTL_DESCR("Automatic reniced non-root process " 453 "priority"), 454 sysctl_kern_autonice, 0, &autoniceval, 0, 455 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 456 sysctl_createv(clog, 0, NULL, NULL, 457 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 458 CTLTYPE_INT, "rtc_offset", 459 SYSCTL_DESCR("Offset of real time clock from UTC in " 460 "minutes"), 461 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 462 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 463 sysctl_createv(clog, 0, NULL, NULL, 464 CTLFLAG_PERMANENT, 465 CTLTYPE_STRING, "root_device", 466 SYSCTL_DESCR("Name of the root device"), 467 sysctl_root_device, 0, NULL, 0, 468 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 469 sysctl_createv(clog, 0, NULL, NULL, 470 CTLFLAG_PERMANENT, 471 CTLTYPE_INT, "msgbufsize", 472 SYSCTL_DESCR("Size of the kernel message buffer"), 473 sysctl_msgbuf, 0, NULL, 0, 474 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 475 sysctl_createv(clog, 0, NULL, NULL, 476 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 477 CTLTYPE_INT, "fsync", 478 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 479 "Synchronization Option is available on " 480 "this system"), 481 NULL, 1, NULL, 0, 482 CTL_KERN, KERN_FSYNC, CTL_EOL); 483 sysctl_createv(clog, 0, NULL, NULL, 484 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 485 CTLTYPE_INT, "sysvmsg", 486 SYSCTL_DESCR("System V style message support available"), 487 NULL, 488 #ifdef SYSVMSG 489 1, 490 #else /* SYSVMSG */ 491 0, 492 #endif /* SYSVMSG */ 493 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 494 sysctl_createv(clog, 0, NULL, NULL, 495 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 496 CTLTYPE_INT, "sysvsem", 497 SYSCTL_DESCR("System V style semaphore support " 498 "available"), NULL, 499 #ifdef SYSVSEM 500 1, 501 #else /* SYSVSEM */ 502 0, 503 #endif /* SYSVSEM */ 504 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 505 sysctl_createv(clog, 0, NULL, NULL, 506 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 507 CTLTYPE_INT, "sysvshm", 508 SYSCTL_DESCR("System V style shared memory support " 509 "available"), NULL, 510 #ifdef SYSVSHM 511 1, 512 #else /* SYSVSHM */ 513 0, 514 #endif /* SYSVSHM */ 515 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 516 sysctl_createv(clog, 0, NULL, NULL, 517 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 518 CTLTYPE_INT, "synchronized_io", 519 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 520 "I/O Option is available on this system"), 521 NULL, 1, NULL, 0, 522 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 523 sysctl_createv(clog, 0, NULL, NULL, 524 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 525 CTLTYPE_INT, "iov_max", 526 SYSCTL_DESCR("Maximum number of iovec structures per " 527 "process"), 528 NULL, IOV_MAX, NULL, 0, 529 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 530 sysctl_createv(clog, 0, NULL, NULL, 531 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 532 CTLTYPE_INT, "mapped_files", 533 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 534 "Files Option is available on this system"), 535 NULL, 1, NULL, 0, 536 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 537 sysctl_createv(clog, 0, NULL, NULL, 538 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 539 CTLTYPE_INT, "memlock", 540 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 541 "Locking Option is available on this " 542 "system"), 543 NULL, 1, NULL, 0, 544 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 545 sysctl_createv(clog, 0, NULL, NULL, 546 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 547 CTLTYPE_INT, "memlock_range", 548 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 549 "Locking Option is available on this " 550 "system"), 551 NULL, 1, NULL, 0, 552 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 553 sysctl_createv(clog, 0, NULL, NULL, 554 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 555 CTLTYPE_INT, "memory_protection", 556 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 557 "Protection Option is available on this " 558 "system"), 559 NULL, 1, NULL, 0, 560 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 561 sysctl_createv(clog, 0, NULL, NULL, 562 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 563 CTLTYPE_INT, "login_name_max", 564 SYSCTL_DESCR("Maximum login name length"), 565 NULL, LOGIN_NAME_MAX, NULL, 0, 566 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 567 sysctl_createv(clog, 0, NULL, NULL, 568 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 569 CTLTYPE_STRING, "defcorename", 570 SYSCTL_DESCR("Default core file name"), 571 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 572 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 573 sysctl_createv(clog, 0, NULL, NULL, 574 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 575 CTLTYPE_INT, "logsigexit", 576 SYSCTL_DESCR("Log process exit when caused by signals"), 577 NULL, 0, &kern_logsigexit, 0, 578 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 579 sysctl_createv(clog, 0, NULL, NULL, 580 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 581 CTLTYPE_INT, "fscale", 582 SYSCTL_DESCR("Kernel fixed-point scale factor"), 583 NULL, FSCALE, NULL, 0, 584 CTL_KERN, KERN_FSCALE, CTL_EOL); 585 sysctl_createv(clog, 0, NULL, NULL, 586 CTLFLAG_PERMANENT, 587 CTLTYPE_INT, "ccpu", 588 SYSCTL_DESCR("Scheduler exponential decay value"), 589 NULL, 0, &ccpu, 0, 590 CTL_KERN, KERN_CCPU, CTL_EOL); 591 sysctl_createv(clog, 0, NULL, NULL, 592 CTLFLAG_PERMANENT, 593 CTLTYPE_STRUCT, "cp_time", 594 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 595 sysctl_kern_cptime, 0, NULL, 0, 596 CTL_KERN, KERN_CP_TIME, CTL_EOL); 597 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 598 sysctl_createv(clog, 0, NULL, NULL, 599 CTLFLAG_PERMANENT, 600 CTLTYPE_STRUCT, "sysvipc_info", 601 SYSCTL_DESCR("System V style IPC information"), 602 sysctl_kern_sysvipc, 0, NULL, 0, 603 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 604 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 605 sysctl_createv(clog, 0, NULL, NULL, 606 CTLFLAG_PERMANENT, 607 CTLTYPE_INT, "msgbuf", 608 SYSCTL_DESCR("Kernel message buffer"), 609 sysctl_msgbuf, 0, NULL, 0, 610 CTL_KERN, KERN_MSGBUF, CTL_EOL); 611 sysctl_createv(clog, 0, NULL, NULL, 612 CTLFLAG_PERMANENT, 613 CTLTYPE_STRUCT, "consdev", 614 SYSCTL_DESCR("Console device"), 615 sysctl_consdev, 0, NULL, sizeof(dev_t), 616 CTL_KERN, KERN_CONSDEV, CTL_EOL); 617 #if NPTY > 0 618 sysctl_createv(clog, 0, NULL, NULL, 619 CTLFLAG_PERMANENT, 620 CTLTYPE_INT, "maxptys", 621 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 622 sysctl_kern_maxptys, 0, NULL, 0, 623 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 624 #endif /* NPTY > 0 */ 625 sysctl_createv(clog, 0, NULL, NULL, 626 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 627 CTLTYPE_INT, "maxphys", 628 SYSCTL_DESCR("Maximum raw I/O transfer size"), 629 NULL, MAXPHYS, NULL, 0, 630 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 631 sysctl_createv(clog, 0, NULL, NULL, 632 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 633 CTLTYPE_INT, "sbmax", 634 SYSCTL_DESCR("Maximum socket buffer size"), 635 sysctl_kern_sbmax, 0, NULL, 0, 636 CTL_KERN, KERN_SBMAX, CTL_EOL); 637 sysctl_createv(clog, 0, NULL, NULL, 638 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 639 CTLTYPE_INT, "monotonic_clock", 640 SYSCTL_DESCR("Implementation version of the POSIX " 641 "1003.1b Monotonic Clock Option"), 642 /* XXX _POSIX_VERSION */ 643 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 644 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 645 sysctl_createv(clog, 0, NULL, NULL, 646 CTLFLAG_PERMANENT, 647 CTLTYPE_INT, "urandom", 648 SYSCTL_DESCR("Random integer value"), 649 sysctl_kern_urnd, 0, NULL, 0, 650 CTL_KERN, KERN_URND, CTL_EOL); 651 sysctl_createv(clog, 0, NULL, NULL, 652 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 653 CTLTYPE_INT, "labelsector", 654 SYSCTL_DESCR("Sector number containing the disklabel"), 655 NULL, LABELSECTOR, NULL, 0, 656 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 657 sysctl_createv(clog, 0, NULL, NULL, 658 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 659 CTLTYPE_INT, "labeloffset", 660 SYSCTL_DESCR("Offset of the disklabel within the " 661 "sector"), 662 NULL, LABELOFFSET, NULL, 0, 663 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 664 sysctl_createv(clog, 0, NULL, NULL, 665 CTLFLAG_PERMANENT, 666 CTLTYPE_NODE, "lwp", 667 SYSCTL_DESCR("System-wide LWP information"), 668 sysctl_kern_lwp, 0, NULL, 0, 669 CTL_KERN, KERN_LWP, CTL_EOL); 670 sysctl_createv(clog, 0, NULL, NULL, 671 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 672 CTLTYPE_INT, "forkfsleep", 673 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 674 "to process limits"), 675 sysctl_kern_forkfsleep, 0, NULL, 0, 676 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 677 sysctl_createv(clog, 0, NULL, NULL, 678 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 679 CTLTYPE_INT, "posix_threads", 680 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 681 "Threads option to which the system " 682 "attempts to conform"), 683 /* XXX _POSIX_VERSION */ 684 NULL, _POSIX_THREADS, NULL, 0, 685 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 686 sysctl_createv(clog, 0, NULL, NULL, 687 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 688 CTLTYPE_INT, "posix_semaphores", 689 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 690 "Semaphores option to which the system " 691 "attempts to conform"), NULL, 692 #ifdef P1003_1B_SEMAPHORE 693 200112, 694 #else /* P1003_1B_SEMAPHORE */ 695 0, 696 #endif /* P1003_1B_SEMAPHORE */ 697 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 698 sysctl_createv(clog, 0, NULL, NULL, 699 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 700 CTLTYPE_INT, "posix_barriers", 701 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 702 "Barriers option to which the system " 703 "attempts to conform"), 704 /* XXX _POSIX_VERSION */ 705 NULL, _POSIX_BARRIERS, NULL, 0, 706 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 707 sysctl_createv(clog, 0, NULL, NULL, 708 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 709 CTLTYPE_INT, "posix_timers", 710 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 711 "Timers option to which the system " 712 "attempts to conform"), 713 /* XXX _POSIX_VERSION */ 714 NULL, _POSIX_TIMERS, NULL, 0, 715 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 716 sysctl_createv(clog, 0, NULL, NULL, 717 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 718 CTLTYPE_INT, "posix_spin_locks", 719 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 720 "Locks option to which the system attempts " 721 "to conform"), 722 /* XXX _POSIX_VERSION */ 723 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 724 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 725 sysctl_createv(clog, 0, NULL, NULL, 726 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 727 CTLTYPE_INT, "posix_reader_writer_locks", 728 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 729 "Read-Write Locks option to which the " 730 "system attempts to conform"), 731 /* XXX _POSIX_VERSION */ 732 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 733 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 734 sysctl_createv(clog, 0, NULL, NULL, 735 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 736 CTLTYPE_INT, "dump_on_panic", 737 SYSCTL_DESCR("Perform a crash dump on system panic"), 738 NULL, 0, &dumponpanic, 0, 739 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 740 #ifdef DIAGNOSTIC 741 sysctl_createv(clog, 0, NULL, NULL, 742 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 743 CTLTYPE_INT, "panic_now", 744 SYSCTL_DESCR("Trigger a panic"), 745 sysctl_kern_trigger_panic, 0, NULL, 0, 746 CTL_KERN, CTL_CREATE, CTL_EOL); 747 #endif 748 sysctl_createv(clog, 0, NULL, NULL, 749 CTLFLAG_PERMANENT, 750 CTLTYPE_INT, "root_partition", 751 SYSCTL_DESCR("Root partition on the root device"), 752 sysctl_kern_root_partition, 0, NULL, 0, 753 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 754 sysctl_createv(clog, 0, NULL, NULL, 755 CTLFLAG_PERMANENT, 756 CTLTYPE_STRUCT, "drivers", 757 SYSCTL_DESCR("List of all drivers with block and " 758 "character device numbers"), 759 sysctl_kern_drivers, 0, NULL, 0, 760 CTL_KERN, KERN_DRIVERS, CTL_EOL); 761 sysctl_createv(clog, 0, NULL, NULL, 762 CTLFLAG_PERMANENT, 763 CTLTYPE_STRUCT, "file2", 764 SYSCTL_DESCR("System open file table"), 765 sysctl_kern_file2, 0, NULL, 0, 766 CTL_KERN, KERN_FILE2, CTL_EOL); 767 #ifdef VERIFIED_EXEC 768 sysctl_createv(clog, 0, NULL, NULL, 769 CTLFLAG_PERMANENT, 770 CTLTYPE_NODE, "veriexec", 771 SYSCTL_DESCR("Verified Exec"), 772 NULL, 0, NULL, 0, 773 CTL_KERN, KERN_VERIEXEC, CTL_EOL); 774 sysctl_createv(clog, 0, NULL, NULL, 775 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 776 CTLTYPE_INT, "verbose", 777 SYSCTL_DESCR("Verified Exec verbose level"), 778 NULL, 0, &veriexec_verbose, 0, 779 CTL_KERN, KERN_VERIEXEC, VERIEXEC_VERBOSE, 780 CTL_EOL); 781 sysctl_createv(clog, 0, NULL, NULL, 782 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 783 CTLTYPE_INT, "strict", 784 SYSCTL_DESCR("Verified Exec strict level"), 785 sysctl_kern_veriexec, 0, NULL, 0, 786 CTL_KERN, KERN_VERIEXEC, VERIEXEC_STRICT, CTL_EOL); 787 sysctl_createv(clog, 0, NULL, NULL, 788 CTLFLAG_PERMANENT, 789 CTLTYPE_STRING, "algorithms", 790 SYSCTL_DESCR("Verified Exec supported hashing " 791 "algorithms"), 792 sysctl_kern_veriexec, 0, NULL, 0, 793 CTL_KERN, KERN_VERIEXEC, VERIEXEC_ALGORITHMS, CTL_EOL); 794 sysctl_createv(clog, 0, NULL, &veriexec_count_node, 795 CTLFLAG_PERMANENT, 796 CTLTYPE_NODE, "count", 797 SYSCTL_DESCR("Number of fingerprints on device(s)"), 798 NULL, 0, NULL, 0, 799 CTL_KERN, KERN_VERIEXEC, VERIEXEC_COUNT, CTL_EOL); 800 #endif /* VERIFIED_EXEC */ 801 sysctl_createv(clog, 0, NULL, NULL, 802 CTLFLAG_PERMANENT, 803 CTLTYPE_STRUCT, "cp_id", 804 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 805 sysctl_kern_cpid, 0, NULL, 0, 806 CTL_KERN, KERN_CP_ID, CTL_EOL); 807 } 808 809 SYSCTL_SETUP(sysctl_kern_proc_setup, 810 "sysctl kern.proc/proc2/proc_args subtree setup") 811 { 812 813 sysctl_createv(clog, 0, NULL, NULL, 814 CTLFLAG_PERMANENT, 815 CTLTYPE_NODE, "kern", NULL, 816 NULL, 0, NULL, 0, 817 CTL_KERN, CTL_EOL); 818 819 sysctl_createv(clog, 0, NULL, NULL, 820 CTLFLAG_PERMANENT, 821 CTLTYPE_NODE, "proc", 822 SYSCTL_DESCR("System-wide process information"), 823 sysctl_doeproc, 0, NULL, 0, 824 CTL_KERN, KERN_PROC, CTL_EOL); 825 sysctl_createv(clog, 0, NULL, NULL, 826 CTLFLAG_PERMANENT, 827 CTLTYPE_NODE, "proc2", 828 SYSCTL_DESCR("Machine-independent process information"), 829 sysctl_doeproc, 0, NULL, 0, 830 CTL_KERN, KERN_PROC2, CTL_EOL); 831 sysctl_createv(clog, 0, NULL, NULL, 832 CTLFLAG_PERMANENT, 833 CTLTYPE_NODE, "proc_args", 834 SYSCTL_DESCR("Process argument information"), 835 sysctl_kern_proc_args, 0, NULL, 0, 836 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 837 838 /* 839 "nodes" under these: 840 841 KERN_PROC_ALL 842 KERN_PROC_PID pid 843 KERN_PROC_PGRP pgrp 844 KERN_PROC_SESSION sess 845 KERN_PROC_TTY tty 846 KERN_PROC_UID uid 847 KERN_PROC_RUID uid 848 KERN_PROC_GID gid 849 KERN_PROC_RGID gid 850 851 all in all, probably not worth the effort... 852 */ 853 } 854 855 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 856 { 857 u_int u; 858 u_quad_t q; 859 860 sysctl_createv(clog, 0, NULL, NULL, 861 CTLFLAG_PERMANENT, 862 CTLTYPE_NODE, "hw", NULL, 863 NULL, 0, NULL, 0, 864 CTL_HW, CTL_EOL); 865 866 sysctl_createv(clog, 0, NULL, NULL, 867 CTLFLAG_PERMANENT, 868 CTLTYPE_STRING, "machine", 869 SYSCTL_DESCR("Machine class"), 870 NULL, 0, machine, 0, 871 CTL_HW, HW_MACHINE, CTL_EOL); 872 sysctl_createv(clog, 0, NULL, NULL, 873 CTLFLAG_PERMANENT, 874 CTLTYPE_STRING, "model", 875 SYSCTL_DESCR("Machine model"), 876 NULL, 0, cpu_model, 0, 877 CTL_HW, HW_MODEL, CTL_EOL); 878 sysctl_createv(clog, 0, NULL, NULL, 879 CTLFLAG_PERMANENT, 880 CTLTYPE_INT, "ncpu", 881 SYSCTL_DESCR("Number of active CPUs"), 882 sysctl_hw_ncpu, 0, NULL, 0, 883 CTL_HW, HW_NCPU, CTL_EOL); 884 sysctl_createv(clog, 0, NULL, NULL, 885 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 886 CTLTYPE_INT, "byteorder", 887 SYSCTL_DESCR("System byte order"), 888 NULL, BYTE_ORDER, NULL, 0, 889 CTL_HW, HW_BYTEORDER, CTL_EOL); 890 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 891 UINT_MAX : physmem * PAGE_SIZE; 892 sysctl_createv(clog, 0, NULL, NULL, 893 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 894 CTLTYPE_INT, "physmem", 895 SYSCTL_DESCR("Bytes of physical memory"), 896 NULL, u, NULL, 0, 897 CTL_HW, HW_PHYSMEM, CTL_EOL); 898 sysctl_createv(clog, 0, NULL, NULL, 899 CTLFLAG_PERMANENT, 900 CTLTYPE_INT, "usermem", 901 SYSCTL_DESCR("Bytes of non-kernel memory"), 902 sysctl_hw_usermem, 0, NULL, 0, 903 CTL_HW, HW_USERMEM, CTL_EOL); 904 sysctl_createv(clog, 0, NULL, NULL, 905 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 906 CTLTYPE_INT, "pagesize", 907 SYSCTL_DESCR("Software page size"), 908 NULL, PAGE_SIZE, NULL, 0, 909 CTL_HW, HW_PAGESIZE, CTL_EOL); 910 sysctl_createv(clog, 0, NULL, NULL, 911 CTLFLAG_PERMANENT, 912 CTLTYPE_STRING, "machine_arch", 913 SYSCTL_DESCR("Machine CPU class"), 914 NULL, 0, machine_arch, 0, 915 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 916 sysctl_createv(clog, 0, NULL, NULL, 917 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 918 CTLTYPE_INT, "alignbytes", 919 SYSCTL_DESCR("Alignment constraint for all possible " 920 "data types"), 921 NULL, ALIGNBYTES, NULL, 0, 922 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 923 sysctl_createv(clog, 0, NULL, NULL, 924 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 925 CTLTYPE_STRING, "cnmagic", 926 SYSCTL_DESCR("Console magic key sequence"), 927 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 928 CTL_HW, HW_CNMAGIC, CTL_EOL); 929 q = (u_quad_t)physmem * PAGE_SIZE; 930 sysctl_createv(clog, 0, NULL, NULL, 931 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 932 CTLTYPE_QUAD, "physmem64", 933 SYSCTL_DESCR("Bytes of physical memory"), 934 NULL, q, NULL, 0, 935 CTL_HW, HW_PHYSMEM64, CTL_EOL); 936 sysctl_createv(clog, 0, NULL, NULL, 937 CTLFLAG_PERMANENT, 938 CTLTYPE_QUAD, "usermem64", 939 SYSCTL_DESCR("Bytes of non-kernel memory"), 940 sysctl_hw_usermem, 0, NULL, 0, 941 CTL_HW, HW_USERMEM64, CTL_EOL); 942 } 943 944 #ifdef DEBUG 945 /* 946 * Debugging related system variables. 947 */ 948 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 949 struct ctldebug debug5, debug6, debug7, debug8, debug9; 950 struct ctldebug debug10, debug11, debug12, debug13, debug14; 951 struct ctldebug debug15, debug16, debug17, debug18, debug19; 952 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 953 &debug0, &debug1, &debug2, &debug3, &debug4, 954 &debug5, &debug6, &debug7, &debug8, &debug9, 955 &debug10, &debug11, &debug12, &debug13, &debug14, 956 &debug15, &debug16, &debug17, &debug18, &debug19, 957 }; 958 959 /* 960 * this setup routine is a replacement for debug_sysctl() 961 * 962 * note that it creates several nodes per defined debug variable 963 */ 964 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 965 { 966 struct ctldebug *cdp; 967 char nodename[20]; 968 int i; 969 970 /* 971 * two ways here: 972 * 973 * the "old" way (debug.name -> value) which was emulated by 974 * the sysctl(8) binary 975 * 976 * the new way, which the sysctl(8) binary was actually using 977 978 node debug 979 node debug.0 980 string debug.0.name 981 int debug.0.value 982 int debug.name 983 984 */ 985 986 sysctl_createv(clog, 0, NULL, NULL, 987 CTLFLAG_PERMANENT, 988 CTLTYPE_NODE, "debug", NULL, 989 NULL, 0, NULL, 0, 990 CTL_DEBUG, CTL_EOL); 991 992 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 993 cdp = debugvars[i]; 994 if (cdp->debugname == NULL || cdp->debugvar == NULL) 995 continue; 996 997 snprintf(nodename, sizeof(nodename), "debug%d", i); 998 sysctl_createv(clog, 0, NULL, NULL, 999 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1000 CTLTYPE_NODE, nodename, NULL, 1001 NULL, 0, NULL, 0, 1002 CTL_DEBUG, i, CTL_EOL); 1003 sysctl_createv(clog, 0, NULL, NULL, 1004 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1005 CTLTYPE_STRING, "name", NULL, 1006 /*XXXUNCONST*/ 1007 NULL, 0, __UNCONST(cdp->debugname), 0, 1008 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1009 sysctl_createv(clog, 0, NULL, NULL, 1010 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1011 CTLTYPE_INT, "value", NULL, 1012 NULL, 0, cdp->debugvar, 0, 1013 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1014 sysctl_createv(clog, 0, NULL, NULL, 1015 CTLFLAG_PERMANENT, 1016 CTLTYPE_INT, cdp->debugname, NULL, 1017 NULL, 0, cdp->debugvar, 0, 1018 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1019 } 1020 } 1021 #endif /* DEBUG */ 1022 1023 SYSCTL_SETUP(sysctl_security_setup, "sysctl security subtree setup") 1024 { 1025 const struct sysctlnode *rnode = NULL; 1026 1027 sysctl_createv(clog, 0, NULL, &rnode, 1028 CTLFLAG_PERMANENT, 1029 CTLTYPE_NODE, "security", NULL, 1030 NULL, 0, NULL, 0, 1031 CTL_SECURITY, CTL_EOL); 1032 1033 sysctl_createv(clog, 0, &rnode, NULL, 1034 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1035 CTLTYPE_INT, "curtain", 1036 SYSCTL_DESCR("Curtain information about objects" 1037 " to users not owning them."), 1038 NULL, 0, &security_curtain, 0, 1039 CTL_CREATE, CTL_EOL); 1040 1041 sysctl_createv(clog, 0, &rnode, &rnode, 1042 CTLFLAG_PERMANENT, 1043 CTLTYPE_NODE, "setid_core", 1044 SYSCTL_DESCR("Set-id processes' coredump settings."), 1045 NULL, 0, NULL, 0, 1046 CTL_CREATE, CTL_EOL); 1047 sysctl_createv(clog, 0, &rnode, NULL, 1048 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1049 CTLTYPE_INT, "dump", 1050 SYSCTL_DESCR("Allow set-id processes to dump core."), 1051 sysctl_security_setidcore, 0, &security_setidcore_dump, 1052 sizeof(security_setidcore_dump), 1053 CTL_CREATE, CTL_EOL); 1054 sysctl_createv(clog, 0, &rnode, NULL, 1055 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1056 CTLTYPE_STRING, "path", 1057 SYSCTL_DESCR("Path pattern for set-id coredumps."), 1058 sysctl_security_setidcorename, 0, 1059 &security_setidcore_path, 1060 sizeof(security_setidcore_path), 1061 CTL_CREATE, CTL_EOL); 1062 sysctl_createv(clog, 0, &rnode, NULL, 1063 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1064 CTLTYPE_INT, "owner", 1065 SYSCTL_DESCR("Owner id for set-id processes' cores."), 1066 sysctl_security_setidcore, 0, &security_setidcore_owner, 1067 0, 1068 CTL_CREATE, CTL_EOL); 1069 sysctl_createv(clog, 0, &rnode, NULL, 1070 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1071 CTLTYPE_INT, "group", 1072 SYSCTL_DESCR("Group id for set-id processes' cores."), 1073 sysctl_security_setidcore, 0, &security_setidcore_group, 1074 0, 1075 CTL_CREATE, CTL_EOL); 1076 sysctl_createv(clog, 0, &rnode, NULL, 1077 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1078 CTLTYPE_INT, "mode", 1079 SYSCTL_DESCR("Mode for set-id processes' cores."), 1080 sysctl_security_setidcore, 0, &security_setidcore_mode, 1081 0, 1082 CTL_CREATE, CTL_EOL); 1083 } 1084 1085 /* 1086 * ******************************************************************** 1087 * section 2: private node-specific helper routines. 1088 * ******************************************************************** 1089 */ 1090 1091 #ifdef DIAGNOSTIC 1092 static int 1093 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1094 { 1095 int newtrig, error; 1096 struct sysctlnode node; 1097 1098 newtrig = 0; 1099 node = *rnode; 1100 node.sysctl_data = &newtrig; 1101 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1102 if (error || newp == NULL) 1103 return (error); 1104 1105 if (newtrig != 0) 1106 panic("Panic triggered"); 1107 1108 return (error); 1109 } 1110 #endif 1111 1112 /* 1113 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1114 * new value is lower than desiredvnodes and then calls reinit 1115 * routines that needs to adjust to the new value. 1116 */ 1117 static int 1118 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1119 { 1120 int error, new_vnodes, old_vnodes; 1121 struct sysctlnode node; 1122 1123 new_vnodes = desiredvnodes; 1124 node = *rnode; 1125 node.sysctl_data = &new_vnodes; 1126 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1127 if (error || newp == NULL) 1128 return (error); 1129 1130 old_vnodes = desiredvnodes; 1131 desiredvnodes = new_vnodes; 1132 if (new_vnodes < old_vnodes) { 1133 error = vfs_drainvnodes(new_vnodes, l); 1134 if (error) { 1135 desiredvnodes = old_vnodes; 1136 return (error); 1137 } 1138 } 1139 vfs_reinit(); 1140 nchreinit(); 1141 1142 return (0); 1143 } 1144 1145 /* 1146 * sysctl helper routine for rtc_offset - set time after changes 1147 */ 1148 static int 1149 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1150 { 1151 struct timespec ts, delta; 1152 int error, new_rtc_offset; 1153 struct sysctlnode node; 1154 1155 new_rtc_offset = rtc_offset; 1156 node = *rnode; 1157 node.sysctl_data = &new_rtc_offset; 1158 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1159 if (error || newp == NULL) 1160 return (error); 1161 1162 if (securelevel > 0) 1163 return (EPERM); 1164 if (rtc_offset == new_rtc_offset) 1165 return (0); 1166 1167 /* if we change the offset, adjust the time */ 1168 nanotime(&ts); 1169 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1170 delta.tv_nsec = 0; 1171 timespecadd(&ts, &delta, &ts); 1172 rtc_offset = new_rtc_offset; 1173 settime(l->l_proc, &ts); 1174 1175 return (0); 1176 } 1177 1178 /* 1179 * sysctl helper routine for kern.maxproc. ensures that the new 1180 * values are not too low or too high. 1181 */ 1182 static int 1183 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1184 { 1185 int error, nmaxproc; 1186 struct sysctlnode node; 1187 1188 nmaxproc = maxproc; 1189 node = *rnode; 1190 node.sysctl_data = &nmaxproc; 1191 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1192 if (error || newp == NULL) 1193 return (error); 1194 1195 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1196 return (EINVAL); 1197 #ifdef __HAVE_CPU_MAXPROC 1198 if (nmaxproc > cpu_maxproc()) 1199 return (EINVAL); 1200 #endif 1201 maxproc = nmaxproc; 1202 1203 return (0); 1204 } 1205 1206 /* 1207 * sysctl helper function for kern.hostid. the hostid is a long, but 1208 * we export it as an int, so we need to give it a little help. 1209 */ 1210 static int 1211 sysctl_kern_hostid(SYSCTLFN_ARGS) 1212 { 1213 int error, inthostid; 1214 struct sysctlnode node; 1215 1216 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1217 node = *rnode; 1218 node.sysctl_data = &inthostid; 1219 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1220 if (error || newp == NULL) 1221 return (error); 1222 1223 hostid = (unsigned)inthostid; 1224 1225 return (0); 1226 } 1227 1228 /* 1229 * sysctl helper function for kern.hostname and kern.domainnname. 1230 * resets the relevant recorded length when the underlying name is 1231 * changed. 1232 */ 1233 static int 1234 sysctl_setlen(SYSCTLFN_ARGS) 1235 { 1236 int error; 1237 1238 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1239 if (error || newp == NULL) 1240 return (error); 1241 1242 switch (rnode->sysctl_num) { 1243 case KERN_HOSTNAME: 1244 hostnamelen = strlen((const char*)rnode->sysctl_data); 1245 break; 1246 case KERN_DOMAINNAME: 1247 domainnamelen = strlen((const char*)rnode->sysctl_data); 1248 break; 1249 } 1250 1251 return (0); 1252 } 1253 1254 /* 1255 * sysctl helper routine for kern.clockrate. assembles a struct on 1256 * the fly to be returned to the caller. 1257 */ 1258 static int 1259 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1260 { 1261 struct clockinfo clkinfo; 1262 struct sysctlnode node; 1263 1264 clkinfo.tick = tick; 1265 clkinfo.tickadj = tickadj; 1266 clkinfo.hz = hz; 1267 clkinfo.profhz = profhz; 1268 clkinfo.stathz = stathz ? stathz : hz; 1269 1270 node = *rnode; 1271 node.sysctl_data = &clkinfo; 1272 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1273 } 1274 1275 1276 /* 1277 * sysctl helper routine for kern.file pseudo-subtree. 1278 */ 1279 static int 1280 sysctl_kern_file(SYSCTLFN_ARGS) 1281 { 1282 int error; 1283 size_t buflen; 1284 struct file *fp; 1285 char *start, *where; 1286 1287 start = where = oldp; 1288 buflen = *oldlenp; 1289 if (where == NULL) { 1290 /* 1291 * overestimate by 10 files 1292 */ 1293 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1294 return (0); 1295 } 1296 1297 /* 1298 * first copyout filehead 1299 */ 1300 if (buflen < sizeof(filehead)) { 1301 *oldlenp = 0; 1302 return (0); 1303 } 1304 error = copyout(&filehead, where, sizeof(filehead)); 1305 if (error) 1306 return (error); 1307 buflen -= sizeof(filehead); 1308 where += sizeof(filehead); 1309 1310 /* 1311 * followed by an array of file structures 1312 */ 1313 LIST_FOREACH(fp, &filehead, f_list) { 1314 if (kauth_authorize_process(l->l_proc->p_cred, 1315 KAUTH_PROCESS_CANSEE, l->l_proc, fp->f_cred, NULL, 1316 NULL) != 0) 1317 continue; 1318 if (buflen < sizeof(struct file)) { 1319 *oldlenp = where - start; 1320 return (ENOMEM); 1321 } 1322 error = copyout(fp, where, sizeof(struct file)); 1323 if (error) 1324 return (error); 1325 buflen -= sizeof(struct file); 1326 where += sizeof(struct file); 1327 } 1328 *oldlenp = where - start; 1329 return (0); 1330 } 1331 1332 /* 1333 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1334 * asserts that the assigned value is in the correct range. 1335 */ 1336 static int 1337 sysctl_kern_autonice(SYSCTLFN_ARGS) 1338 { 1339 int error, t = 0; 1340 struct sysctlnode node; 1341 1342 node = *rnode; 1343 t = *(int*)node.sysctl_data; 1344 node.sysctl_data = &t; 1345 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1346 if (error || newp == NULL) 1347 return (error); 1348 1349 switch (node.sysctl_num) { 1350 case KERN_AUTONICETIME: 1351 if (t >= 0) 1352 autonicetime = t; 1353 break; 1354 case KERN_AUTONICEVAL: 1355 if (t < PRIO_MIN) 1356 t = PRIO_MIN; 1357 else if (t > PRIO_MAX) 1358 t = PRIO_MAX; 1359 autoniceval = t; 1360 break; 1361 } 1362 1363 return (0); 1364 } 1365 1366 /* 1367 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1368 * former it merely checks the message buffer is set up. for the latter, 1369 * it also copies out the data if necessary. 1370 */ 1371 static int 1372 sysctl_msgbuf(SYSCTLFN_ARGS) 1373 { 1374 char *where = oldp; 1375 size_t len, maxlen; 1376 long beg, end; 1377 int error; 1378 1379 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1380 msgbufenabled = 0; 1381 return (ENXIO); 1382 } 1383 1384 switch (rnode->sysctl_num) { 1385 case KERN_MSGBUFSIZE: { 1386 struct sysctlnode node = *rnode; 1387 int msg_bufs = (int)msgbufp->msg_bufs; 1388 node.sysctl_data = &msg_bufs; 1389 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1390 } 1391 case KERN_MSGBUF: 1392 break; 1393 default: 1394 return (EOPNOTSUPP); 1395 } 1396 1397 if (newp != NULL) 1398 return (EPERM); 1399 1400 if (oldp == NULL) { 1401 /* always return full buffer size */ 1402 *oldlenp = msgbufp->msg_bufs; 1403 return (0); 1404 } 1405 1406 error = 0; 1407 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1408 1409 /* 1410 * First, copy from the write pointer to the end of 1411 * message buffer. 1412 */ 1413 beg = msgbufp->msg_bufx; 1414 end = msgbufp->msg_bufs; 1415 while (maxlen > 0) { 1416 len = MIN(end - beg, maxlen); 1417 if (len == 0) 1418 break; 1419 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1420 if (error) 1421 break; 1422 where += len; 1423 maxlen -= len; 1424 1425 /* 1426 * ... then, copy from the beginning of message buffer to 1427 * the write pointer. 1428 */ 1429 beg = 0; 1430 end = msgbufp->msg_bufx; 1431 } 1432 1433 return (error); 1434 } 1435 1436 /* 1437 * sysctl helper routine for kern.defcorename. in the case of a new 1438 * string being assigned, check that it's not a zero-length string. 1439 * (XXX the check in -current doesn't work, but do we really care?) 1440 */ 1441 static int 1442 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1443 { 1444 int error; 1445 char *newcorename; 1446 struct sysctlnode node; 1447 1448 newcorename = PNBUF_GET(); 1449 node = *rnode; 1450 node.sysctl_data = &newcorename[0]; 1451 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1452 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1453 if (error || newp == NULL) { 1454 goto done; 1455 } 1456 1457 /* 1458 * when sysctl_lookup() deals with a string, it's guaranteed 1459 * to come back nul terminated. so there. :) 1460 */ 1461 if (strlen(newcorename) == 0) { 1462 error = EINVAL; 1463 } else { 1464 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1465 error = 0; 1466 } 1467 done: 1468 PNBUF_PUT(newcorename); 1469 return error; 1470 } 1471 1472 /* 1473 * sysctl helper routine for kern.cp_time node. adds up cpu time 1474 * across all cpus. 1475 */ 1476 static int 1477 sysctl_kern_cptime(SYSCTLFN_ARGS) 1478 { 1479 struct sysctlnode node = *rnode; 1480 1481 #ifndef MULTIPROCESSOR 1482 1483 if (namelen == 1) { 1484 if (name[0] != 0) 1485 return (ENOENT); 1486 /* 1487 * you're allowed to ask for the zero'th processor 1488 */ 1489 name++; 1490 namelen--; 1491 } 1492 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1493 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1494 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1495 1496 #else /* MULTIPROCESSOR */ 1497 1498 uint64_t *cp_time = NULL; 1499 int error, n = sysctl_ncpus(), i; 1500 struct cpu_info *ci; 1501 CPU_INFO_ITERATOR cii; 1502 1503 /* 1504 * if you specifically pass a buffer that is the size of the 1505 * sum, or if you are probing for the size, you get the "sum" 1506 * of cp_time (and the size thereof) across all processors. 1507 * 1508 * alternately, you can pass an additional mib number and get 1509 * cp_time for that particular processor. 1510 */ 1511 switch (namelen) { 1512 case 0: 1513 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1514 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1515 n = -1; /* SUM */ 1516 } 1517 else { 1518 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1519 n = -2; /* ALL */ 1520 } 1521 break; 1522 case 1: 1523 if (name[0] < 0 || name[0] >= n) 1524 return (ENOENT); /* ENOSUCHPROCESSOR */ 1525 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1526 n = name[0]; 1527 /* 1528 * adjust these so that sysctl_lookup() will be happy 1529 */ 1530 name++; 1531 namelen--; 1532 break; 1533 default: 1534 return (EINVAL); 1535 } 1536 1537 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1538 if (cp_time == NULL) 1539 return (ENOMEM); 1540 node.sysctl_data = cp_time; 1541 memset(cp_time, 0, node.sysctl_size); 1542 1543 for (CPU_INFO_FOREACH(cii, ci)) { 1544 if (n <= 0) 1545 for (i = 0; i < CPUSTATES; i++) 1546 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1547 /* 1548 * if a specific processor was requested and we just 1549 * did it, we're done here 1550 */ 1551 if (n == 0) 1552 break; 1553 /* 1554 * if doing "all", skip to next cp_time set for next processor 1555 */ 1556 if (n == -2) 1557 cp_time += CPUSTATES; 1558 /* 1559 * if we're doing a specific processor, we're one 1560 * processor closer 1561 */ 1562 if (n > 0) 1563 n--; 1564 } 1565 1566 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1567 free(node.sysctl_data, M_TEMP); 1568 return (error); 1569 1570 #endif /* MULTIPROCESSOR */ 1571 } 1572 1573 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1574 /* 1575 * sysctl helper routine for kern.sysvipc_info subtree. 1576 */ 1577 1578 #define FILL_PERM(src, dst) do { \ 1579 (dst)._key = (src)._key; \ 1580 (dst).uid = (src).uid; \ 1581 (dst).gid = (src).gid; \ 1582 (dst).cuid = (src).cuid; \ 1583 (dst).cgid = (src).cgid; \ 1584 (dst).mode = (src).mode; \ 1585 (dst)._seq = (src)._seq; \ 1586 } while (/*CONSTCOND*/ 0); 1587 #define FILL_MSG(src, dst) do { \ 1588 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1589 (dst).msg_qnum = (src).msg_qnum; \ 1590 (dst).msg_qbytes = (src).msg_qbytes; \ 1591 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1592 (dst).msg_lspid = (src).msg_lspid; \ 1593 (dst).msg_lrpid = (src).msg_lrpid; \ 1594 (dst).msg_stime = (src).msg_stime; \ 1595 (dst).msg_rtime = (src).msg_rtime; \ 1596 (dst).msg_ctime = (src).msg_ctime; \ 1597 } while (/*CONSTCOND*/ 0) 1598 #define FILL_SEM(src, dst) do { \ 1599 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1600 (dst).sem_nsems = (src).sem_nsems; \ 1601 (dst).sem_otime = (src).sem_otime; \ 1602 (dst).sem_ctime = (src).sem_ctime; \ 1603 } while (/*CONSTCOND*/ 0) 1604 #define FILL_SHM(src, dst) do { \ 1605 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1606 (dst).shm_segsz = (src).shm_segsz; \ 1607 (dst).shm_lpid = (src).shm_lpid; \ 1608 (dst).shm_cpid = (src).shm_cpid; \ 1609 (dst).shm_atime = (src).shm_atime; \ 1610 (dst).shm_dtime = (src).shm_dtime; \ 1611 (dst).shm_ctime = (src).shm_ctime; \ 1612 (dst).shm_nattch = (src).shm_nattch; \ 1613 } while (/*CONSTCOND*/ 0) 1614 1615 static int 1616 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1617 { 1618 void *where = oldp; 1619 size_t *sizep = oldlenp; 1620 #ifdef SYSVMSG 1621 struct msg_sysctl_info *msgsi = NULL; 1622 #endif 1623 #ifdef SYSVSEM 1624 struct sem_sysctl_info *semsi = NULL; 1625 #endif 1626 #ifdef SYSVSHM 1627 struct shm_sysctl_info *shmsi = NULL; 1628 #endif 1629 size_t infosize, dssize, tsize, buflen; 1630 void *bf = NULL; 1631 char *start; 1632 int32_t nds; 1633 int i, error, ret; 1634 1635 if (namelen != 1) 1636 return (EINVAL); 1637 1638 start = where; 1639 buflen = *sizep; 1640 1641 switch (*name) { 1642 case KERN_SYSVIPC_MSG_INFO: 1643 #ifdef SYSVMSG 1644 infosize = sizeof(msgsi->msginfo); 1645 nds = msginfo.msgmni; 1646 dssize = sizeof(msgsi->msgids[0]); 1647 break; 1648 #else 1649 return (EINVAL); 1650 #endif 1651 case KERN_SYSVIPC_SEM_INFO: 1652 #ifdef SYSVSEM 1653 infosize = sizeof(semsi->seminfo); 1654 nds = seminfo.semmni; 1655 dssize = sizeof(semsi->semids[0]); 1656 break; 1657 #else 1658 return (EINVAL); 1659 #endif 1660 case KERN_SYSVIPC_SHM_INFO: 1661 #ifdef SYSVSHM 1662 infosize = sizeof(shmsi->shminfo); 1663 nds = shminfo.shmmni; 1664 dssize = sizeof(shmsi->shmids[0]); 1665 break; 1666 #else 1667 return (EINVAL); 1668 #endif 1669 default: 1670 return (EINVAL); 1671 } 1672 /* 1673 * Round infosize to 64 bit boundary if requesting more than just 1674 * the info structure or getting the total data size. 1675 */ 1676 if (where == NULL || *sizep > infosize) 1677 infosize = ((infosize + 7) / 8) * 8; 1678 tsize = infosize + nds * dssize; 1679 1680 /* Return just the total size required. */ 1681 if (where == NULL) { 1682 *sizep = tsize; 1683 return (0); 1684 } 1685 1686 /* Not enough room for even the info struct. */ 1687 if (buflen < infosize) { 1688 *sizep = 0; 1689 return (ENOMEM); 1690 } 1691 bf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1692 memset(bf, 0, min(tsize, buflen)); 1693 1694 switch (*name) { 1695 #ifdef SYSVMSG 1696 case KERN_SYSVIPC_MSG_INFO: 1697 msgsi = (struct msg_sysctl_info *)bf; 1698 msgsi->msginfo = msginfo; 1699 break; 1700 #endif 1701 #ifdef SYSVSEM 1702 case KERN_SYSVIPC_SEM_INFO: 1703 semsi = (struct sem_sysctl_info *)bf; 1704 semsi->seminfo = seminfo; 1705 break; 1706 #endif 1707 #ifdef SYSVSHM 1708 case KERN_SYSVIPC_SHM_INFO: 1709 shmsi = (struct shm_sysctl_info *)bf; 1710 shmsi->shminfo = shminfo; 1711 break; 1712 #endif 1713 } 1714 buflen -= infosize; 1715 1716 ret = 0; 1717 if (buflen > 0) { 1718 /* Fill in the IPC data structures. */ 1719 for (i = 0; i < nds; i++) { 1720 if (buflen < dssize) { 1721 ret = ENOMEM; 1722 break; 1723 } 1724 switch (*name) { 1725 #ifdef SYSVMSG 1726 case KERN_SYSVIPC_MSG_INFO: 1727 FILL_MSG(msqids[i], msgsi->msgids[i]); 1728 break; 1729 #endif 1730 #ifdef SYSVSEM 1731 case KERN_SYSVIPC_SEM_INFO: 1732 FILL_SEM(sema[i], semsi->semids[i]); 1733 break; 1734 #endif 1735 #ifdef SYSVSHM 1736 case KERN_SYSVIPC_SHM_INFO: 1737 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1738 break; 1739 #endif 1740 } 1741 buflen -= dssize; 1742 } 1743 } 1744 *sizep -= buflen; 1745 error = copyout(bf, start, *sizep); 1746 /* If copyout succeeded, use return code set earlier. */ 1747 if (error == 0) 1748 error = ret; 1749 if (bf) 1750 free(bf, M_TEMP); 1751 return (error); 1752 } 1753 1754 #undef FILL_PERM 1755 #undef FILL_MSG 1756 #undef FILL_SEM 1757 #undef FILL_SHM 1758 1759 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1760 1761 #if NPTY > 0 1762 /* 1763 * sysctl helper routine for kern.maxptys. ensures that any new value 1764 * is acceptable to the pty subsystem. 1765 */ 1766 static int 1767 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1768 { 1769 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1770 int error, xmax; 1771 struct sysctlnode node; 1772 1773 /* get current value of maxptys */ 1774 xmax = pty_maxptys(0, 0); 1775 1776 node = *rnode; 1777 node.sysctl_data = &xmax; 1778 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1779 if (error || newp == NULL) 1780 return (error); 1781 1782 if (xmax != pty_maxptys(xmax, 1)) 1783 return (EINVAL); 1784 1785 return (0); 1786 } 1787 #endif /* NPTY > 0 */ 1788 1789 /* 1790 * sysctl helper routine for kern.sbmax. basically just ensures that 1791 * any new value is not too small. 1792 */ 1793 static int 1794 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1795 { 1796 int error, new_sbmax; 1797 struct sysctlnode node; 1798 1799 new_sbmax = sb_max; 1800 node = *rnode; 1801 node.sysctl_data = &new_sbmax; 1802 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1803 if (error || newp == NULL) 1804 return (error); 1805 1806 error = sb_max_set(new_sbmax); 1807 1808 return (error); 1809 } 1810 1811 /* 1812 * sysctl helper routine for kern.urandom node. picks a random number 1813 * for you. 1814 */ 1815 static int 1816 sysctl_kern_urnd(SYSCTLFN_ARGS) 1817 { 1818 #if NRND > 0 1819 int v; 1820 1821 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1822 struct sysctlnode node = *rnode; 1823 node.sysctl_data = &v; 1824 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1825 } 1826 else 1827 return (EIO); /*XXX*/ 1828 #else 1829 return (EOPNOTSUPP); 1830 #endif 1831 } 1832 1833 /* 1834 * sysctl helper routine to do kern.lwp.* work. 1835 */ 1836 static int 1837 sysctl_kern_lwp(SYSCTLFN_ARGS) 1838 { 1839 struct kinfo_lwp klwp; 1840 struct proc *p; 1841 struct lwp *l2; 1842 char *where, *dp; 1843 int pid, elem_size, elem_count; 1844 int buflen, needed, error; 1845 1846 if (namelen == 1 && name[0] == CTL_QUERY) 1847 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1848 1849 dp = where = oldp; 1850 buflen = where != NULL ? *oldlenp : 0; 1851 error = needed = 0; 1852 1853 if (newp != NULL || namelen != 3) 1854 return (EINVAL); 1855 pid = name[0]; 1856 elem_size = name[1]; 1857 elem_count = name[2]; 1858 1859 p = pfind(pid); 1860 if (p == NULL) 1861 return (ESRCH); 1862 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1863 if (buflen >= elem_size && elem_count > 0) { 1864 fill_lwp(l2, &klwp); 1865 /* 1866 * Copy out elem_size, but not larger than 1867 * the size of a struct kinfo_proc2. 1868 */ 1869 error = copyout(&klwp, dp, 1870 min(sizeof(klwp), elem_size)); 1871 if (error) 1872 goto cleanup; 1873 dp += elem_size; 1874 buflen -= elem_size; 1875 elem_count--; 1876 } 1877 needed += elem_size; 1878 } 1879 1880 if (where != NULL) { 1881 *oldlenp = dp - where; 1882 if (needed > *oldlenp) 1883 return (ENOMEM); 1884 } else { 1885 needed += KERN_LWPSLOP; 1886 *oldlenp = needed; 1887 } 1888 return (0); 1889 cleanup: 1890 return (error); 1891 } 1892 1893 /* 1894 * sysctl helper routine for kern.forkfsleep node. ensures that the 1895 * given value is not too large or two small, and is at least one 1896 * timer tick if not zero. 1897 */ 1898 static int 1899 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1900 { 1901 /* userland sees value in ms, internally is in ticks */ 1902 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1903 int error, timo, lsleep; 1904 struct sysctlnode node; 1905 1906 lsleep = forkfsleep * 1000 / hz; 1907 node = *rnode; 1908 node.sysctl_data = &lsleep; 1909 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1910 if (error || newp == NULL) 1911 return (error); 1912 1913 /* refuse negative values, and overly 'long time' */ 1914 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1915 return (EINVAL); 1916 1917 timo = mstohz(lsleep); 1918 1919 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1920 if (lsleep != 0 && timo == 0) 1921 forkfsleep = 1; 1922 else 1923 forkfsleep = timo; 1924 1925 return (0); 1926 } 1927 1928 /* 1929 * sysctl helper routine for kern.root_partition 1930 */ 1931 static int 1932 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1933 { 1934 int rootpart = DISKPART(rootdev); 1935 struct sysctlnode node = *rnode; 1936 1937 node.sysctl_data = &rootpart; 1938 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1939 } 1940 1941 /* 1942 * sysctl helper function for kern.drivers 1943 */ 1944 static int 1945 sysctl_kern_drivers(SYSCTLFN_ARGS) 1946 { 1947 int error; 1948 size_t buflen; 1949 struct kinfo_drivers kd; 1950 char *start, *where; 1951 const char *dname; 1952 int i; 1953 extern struct devsw_conv *devsw_conv; 1954 extern int max_devsw_convs; 1955 1956 if (newp != NULL || namelen != 0) 1957 return (EINVAL); 1958 1959 start = where = oldp; 1960 buflen = *oldlenp; 1961 if (where == NULL) { 1962 *oldlenp = max_devsw_convs * sizeof kd; 1963 return 0; 1964 } 1965 1966 /* 1967 * An array of kinfo_drivers structures 1968 */ 1969 error = 0; 1970 for (i = 0; i < max_devsw_convs; i++) { 1971 dname = devsw_conv[i].d_name; 1972 if (dname == NULL) 1973 continue; 1974 if (buflen < sizeof kd) { 1975 error = ENOMEM; 1976 break; 1977 } 1978 memset(&kd, 0, sizeof(kd)); 1979 kd.d_bmajor = devsw_conv[i].d_bmajor; 1980 kd.d_cmajor = devsw_conv[i].d_cmajor; 1981 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1982 error = copyout(&kd, where, sizeof kd); 1983 if (error != 0) 1984 break; 1985 buflen -= sizeof kd; 1986 where += sizeof kd; 1987 } 1988 *oldlenp = where - start; 1989 return error; 1990 } 1991 1992 /* 1993 * sysctl helper function for kern.file2 1994 */ 1995 static int 1996 sysctl_kern_file2(SYSCTLFN_ARGS) 1997 { 1998 struct proc *p; 1999 struct file *fp; 2000 struct filedesc *fd; 2001 struct kinfo_file kf; 2002 char *dp; 2003 u_int i, op; 2004 size_t len, needed, elem_size, out_size; 2005 int error, arg, elem_count; 2006 2007 if (namelen == 1 && name[0] == CTL_QUERY) 2008 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2009 2010 if (namelen != 4) 2011 return (EINVAL); 2012 2013 error = 0; 2014 dp = oldp; 2015 len = (oldp != NULL) ? *oldlenp : 0; 2016 op = name[0]; 2017 arg = name[1]; 2018 elem_size = name[2]; 2019 elem_count = name[3]; 2020 out_size = MIN(sizeof(kf), elem_size); 2021 needed = 0; 2022 2023 if (elem_size < 1 || elem_count < 0) 2024 return (EINVAL); 2025 2026 switch (op) { 2027 case KERN_FILE_BYFILE: 2028 /* 2029 * doesn't use arg so it must be zero 2030 */ 2031 if (arg != 0) 2032 return (EINVAL); 2033 LIST_FOREACH(fp, &filehead, f_list) { 2034 if (kauth_authorize_process(l->l_proc->p_cred, 2035 KAUTH_PROCESS_CANSEE, l->l_proc, fp->f_cred, NULL, 2036 NULL) != 0) 2037 continue; 2038 if (len >= elem_size && elem_count > 0) { 2039 fill_file(&kf, fp, NULL, 0); 2040 error = copyout(&kf, dp, out_size); 2041 if (error) 2042 break; 2043 dp += elem_size; 2044 len -= elem_size; 2045 } 2046 if (elem_count > 0) { 2047 needed += elem_size; 2048 if (elem_count != INT_MAX) 2049 elem_count--; 2050 } 2051 } 2052 break; 2053 case KERN_FILE_BYPID: 2054 if (arg < -1) 2055 /* -1 means all processes */ 2056 return (EINVAL); 2057 proclist_lock_read(); 2058 PROCLIST_FOREACH(p, &allproc) { 2059 if (p->p_stat == SIDL) 2060 /* skip embryonic processes */ 2061 continue; 2062 if (kauth_authorize_process(l->l_proc->p_cred, 2063 KAUTH_PROCESS_CANSEE, l->l_proc, p->p_cred, 2064 NULL, NULL) != 0) 2065 continue; 2066 if (arg > 0 && p->p_pid != arg) 2067 /* pick only the one we want */ 2068 /* XXX want 0 to mean "kernel files" */ 2069 continue; 2070 fd = p->p_fd; 2071 for (i = 0; i < fd->fd_nfiles; i++) { 2072 fp = fd->fd_ofiles[i]; 2073 if (fp == NULL || !FILE_IS_USABLE(fp)) 2074 continue; 2075 if (len >= elem_size && elem_count > 0) { 2076 fill_file(&kf, fd->fd_ofiles[i], 2077 p, i); 2078 error = copyout(&kf, dp, out_size); 2079 if (error) 2080 break; 2081 dp += elem_size; 2082 len -= elem_size; 2083 } 2084 if (elem_count > 0) { 2085 needed += elem_size; 2086 if (elem_count != INT_MAX) 2087 elem_count--; 2088 } 2089 } 2090 } 2091 proclist_unlock_read(); 2092 break; 2093 default: 2094 return (EINVAL); 2095 } 2096 2097 if (oldp == NULL) 2098 needed += KERN_FILESLOP * elem_size; 2099 *oldlenp = needed; 2100 2101 return (error); 2102 } 2103 2104 static void 2105 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2106 { 2107 2108 memset(kp, 0, sizeof(*kp)); 2109 2110 kp->ki_fileaddr = PTRTOUINT64(fp); 2111 kp->ki_flag = fp->f_flag; 2112 kp->ki_iflags = fp->f_iflags; 2113 kp->ki_ftype = fp->f_type; 2114 kp->ki_count = fp->f_count; 2115 kp->ki_msgcount = fp->f_msgcount; 2116 kp->ki_usecount = fp->f_usecount; 2117 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2118 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2119 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2120 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2121 kp->ki_foffset = fp->f_offset; 2122 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2123 2124 /* vnode information to glue this file to something */ 2125 if (fp->f_type == DTYPE_VNODE) { 2126 struct vnode *vp = (struct vnode *)fp->f_data; 2127 2128 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2129 kp->ki_vsize = vp->v_size; 2130 kp->ki_vtype = vp->v_type; 2131 kp->ki_vtag = vp->v_tag; 2132 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2133 } 2134 2135 /* process information when retrieved via KERN_FILE_BYPID */ 2136 if (p) { 2137 kp->ki_pid = p->p_pid; 2138 kp->ki_fd = i; 2139 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2140 } 2141 } 2142 2143 static int 2144 sysctl_doeproc(SYSCTLFN_ARGS) 2145 { 2146 struct eproc eproc; 2147 struct kinfo_proc2 kproc2; 2148 struct kinfo_proc *dp; 2149 struct proc *p; 2150 const struct proclist_desc *pd; 2151 char *where, *dp2; 2152 int type, op, arg; 2153 u_int elem_size, elem_count; 2154 size_t buflen, needed; 2155 int error; 2156 2157 if (namelen == 1 && name[0] == CTL_QUERY) 2158 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2159 2160 dp = oldp; 2161 dp2 = where = oldp; 2162 buflen = where != NULL ? *oldlenp : 0; 2163 error = 0; 2164 needed = 0; 2165 type = rnode->sysctl_num; 2166 2167 if (type == KERN_PROC) { 2168 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2169 return (EINVAL); 2170 op = name[0]; 2171 if (op != KERN_PROC_ALL) 2172 arg = name[1]; 2173 else 2174 arg = 0; /* Quell compiler warning */ 2175 elem_size = elem_count = 0; /* Ditto */ 2176 } else { 2177 if (namelen != 4) 2178 return (EINVAL); 2179 op = name[0]; 2180 arg = name[1]; 2181 elem_size = name[2]; 2182 elem_count = name[3]; 2183 } 2184 2185 proclist_lock_read(); 2186 2187 pd = proclists; 2188 again: 2189 PROCLIST_FOREACH(p, pd->pd_list) { 2190 /* 2191 * Skip embryonic processes. 2192 */ 2193 if (p->p_stat == SIDL) 2194 continue; 2195 2196 if (kauth_authorize_process(l->l_proc->p_cred, 2197 KAUTH_PROCESS_CANSEE, l->l_proc, p->p_cred, 2198 NULL, NULL) != 0) 2199 continue; 2200 2201 /* 2202 * TODO - make more efficient (see notes below). 2203 * do by session. 2204 */ 2205 switch (op) { 2206 2207 case KERN_PROC_PID: 2208 /* could do this with just a lookup */ 2209 if (p->p_pid != (pid_t)arg) 2210 continue; 2211 break; 2212 2213 case KERN_PROC_PGRP: 2214 /* could do this by traversing pgrp */ 2215 if (p->p_pgrp->pg_id != (pid_t)arg) 2216 continue; 2217 break; 2218 2219 case KERN_PROC_SESSION: 2220 if (p->p_session->s_sid != (pid_t)arg) 2221 continue; 2222 break; 2223 2224 case KERN_PROC_TTY: 2225 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2226 if ((p->p_flag & P_CONTROLT) == 0 || 2227 p->p_session->s_ttyp == NULL || 2228 p->p_session->s_ttyvp != NULL) 2229 continue; 2230 } else if ((p->p_flag & P_CONTROLT) == 0 || 2231 p->p_session->s_ttyp == NULL) { 2232 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2233 continue; 2234 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2235 continue; 2236 break; 2237 2238 case KERN_PROC_UID: 2239 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2240 continue; 2241 break; 2242 2243 case KERN_PROC_RUID: 2244 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2245 continue; 2246 break; 2247 2248 case KERN_PROC_GID: 2249 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2250 continue; 2251 break; 2252 2253 case KERN_PROC_RGID: 2254 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2255 continue; 2256 break; 2257 2258 case KERN_PROC_ALL: 2259 /* allow everything */ 2260 break; 2261 2262 default: 2263 error = EINVAL; 2264 goto cleanup; 2265 } 2266 if (type == KERN_PROC) { 2267 if (buflen >= sizeof(struct kinfo_proc)) { 2268 fill_eproc(p, &eproc); 2269 error = copyout(p, &dp->kp_proc, 2270 sizeof(struct proc)); 2271 if (error) 2272 goto cleanup; 2273 error = copyout(&eproc, &dp->kp_eproc, 2274 sizeof(eproc)); 2275 if (error) 2276 goto cleanup; 2277 dp++; 2278 buflen -= sizeof(struct kinfo_proc); 2279 } 2280 needed += sizeof(struct kinfo_proc); 2281 } else { /* KERN_PROC2 */ 2282 if (buflen >= elem_size && elem_count > 0) { 2283 fill_kproc2(p, &kproc2); 2284 /* 2285 * Copy out elem_size, but not larger than 2286 * the size of a struct kinfo_proc2. 2287 */ 2288 error = copyout(&kproc2, dp2, 2289 min(sizeof(kproc2), elem_size)); 2290 if (error) 2291 goto cleanup; 2292 dp2 += elem_size; 2293 buflen -= elem_size; 2294 elem_count--; 2295 } 2296 needed += elem_size; 2297 } 2298 } 2299 pd++; 2300 if (pd->pd_list != NULL) 2301 goto again; 2302 proclist_unlock_read(); 2303 2304 if (where != NULL) { 2305 if (type == KERN_PROC) 2306 *oldlenp = (char *)dp - where; 2307 else 2308 *oldlenp = dp2 - where; 2309 if (needed > *oldlenp) 2310 return (ENOMEM); 2311 } else { 2312 needed += KERN_PROCSLOP; 2313 *oldlenp = needed; 2314 } 2315 return (0); 2316 cleanup: 2317 proclist_unlock_read(); 2318 return (error); 2319 } 2320 2321 /* 2322 * sysctl helper routine for kern.proc_args pseudo-subtree. 2323 */ 2324 static int 2325 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2326 { 2327 struct ps_strings pss; 2328 struct proc *p, *up = l->l_proc; 2329 size_t len, upper_bound, xlen, i; 2330 struct uio auio; 2331 struct iovec aiov; 2332 vaddr_t argv; 2333 pid_t pid; 2334 int nargv, type, error; 2335 char *arg; 2336 char *tmp; 2337 struct vmspace *vmspace; 2338 vaddr_t psstr_addr; 2339 vaddr_t offsetn; 2340 vaddr_t offsetv; 2341 2342 if (namelen == 1 && name[0] == CTL_QUERY) 2343 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2344 2345 if (newp != NULL || namelen != 2) 2346 return (EINVAL); 2347 pid = name[0]; 2348 type = name[1]; 2349 2350 switch (type) { 2351 case KERN_PROC_ARGV: 2352 case KERN_PROC_NARGV: 2353 case KERN_PROC_ENV: 2354 case KERN_PROC_NENV: 2355 /* ok */ 2356 break; 2357 default: 2358 return (EINVAL); 2359 } 2360 2361 proclist_lock_read(); 2362 2363 /* check pid */ 2364 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2365 error = EINVAL; 2366 goto out_locked; 2367 } 2368 2369 if (kauth_authorize_process(l->l_proc->p_cred, 2370 KAUTH_PROCESS_CANSEE, l->l_proc, p->p_cred, NULL, NULL) != 0) { 2371 error = EPERM; 2372 goto out_locked; 2373 } 2374 2375 /* only root or same user change look at the environment */ 2376 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2377 if (kauth_cred_geteuid(up->p_cred) != 0) { 2378 if (kauth_cred_getuid(up->p_cred) != kauth_cred_getuid(p->p_cred) || 2379 kauth_cred_getuid(up->p_cred) != kauth_cred_getsvuid(p->p_cred)) { 2380 error = EPERM; 2381 goto out_locked; 2382 } 2383 } 2384 } 2385 2386 if (oldp == NULL) { 2387 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2388 *oldlenp = sizeof (int); 2389 else 2390 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2391 error = 0; 2392 goto out_locked; 2393 } 2394 2395 /* 2396 * Zombies don't have a stack, so we can't read their psstrings. 2397 * System processes also don't have a user stack. 2398 */ 2399 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) { 2400 error = EINVAL; 2401 goto out_locked; 2402 } 2403 2404 /* 2405 * Lock the process down in memory. 2406 */ 2407 /* XXXCDC: how should locking work here? */ 2408 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2409 error = EFAULT; 2410 goto out_locked; 2411 } 2412 2413 psstr_addr = (vaddr_t)p->p_psstr; 2414 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2415 offsetn = p->p_psnargv; 2416 offsetv = p->p_psargv; 2417 } else { 2418 offsetn = p->p_psnenv; 2419 offsetv = p->p_psenv; 2420 } 2421 vmspace = p->p_vmspace; 2422 vmspace->vm_refcnt++; /* XXX */ 2423 2424 proclist_unlock_read(); 2425 2426 /* 2427 * Allocate a temporary buffer to hold the arguments. 2428 */ 2429 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2430 2431 /* 2432 * Read in the ps_strings structure. 2433 */ 2434 aiov.iov_base = &pss; 2435 aiov.iov_len = sizeof(pss); 2436 auio.uio_iov = &aiov; 2437 auio.uio_iovcnt = 1; 2438 auio.uio_offset = psstr_addr; 2439 auio.uio_resid = sizeof(pss); 2440 auio.uio_rw = UIO_READ; 2441 UIO_SETUP_SYSSPACE(&auio); 2442 error = uvm_io(&vmspace->vm_map, &auio); 2443 if (error) 2444 goto done; 2445 2446 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2447 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2448 error = copyout(&nargv, oldp, sizeof(nargv)); 2449 *oldlenp = sizeof(nargv); 2450 goto done; 2451 } 2452 /* 2453 * Now read the address of the argument vector. 2454 */ 2455 switch (type) { 2456 case KERN_PROC_ARGV: 2457 /* XXX compat32 stuff here */ 2458 /* FALLTHROUGH */ 2459 case KERN_PROC_ENV: 2460 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2461 break; 2462 default: 2463 return (EINVAL); 2464 } 2465 auio.uio_offset = (off_t)(unsigned long)tmp; 2466 aiov.iov_base = &argv; 2467 aiov.iov_len = sizeof(argv); 2468 auio.uio_iov = &aiov; 2469 auio.uio_iovcnt = 1; 2470 auio.uio_resid = sizeof(argv); 2471 auio.uio_rw = UIO_READ; 2472 UIO_SETUP_SYSSPACE(&auio); 2473 error = uvm_io(&vmspace->vm_map, &auio); 2474 if (error) 2475 goto done; 2476 2477 /* 2478 * Now copy in the actual argument vector, one page at a time, 2479 * since we don't know how long the vector is (though, we do 2480 * know how many NUL-terminated strings are in the vector). 2481 */ 2482 len = 0; 2483 upper_bound = *oldlenp; 2484 for (; nargv != 0 && len < upper_bound; len += xlen) { 2485 aiov.iov_base = arg; 2486 aiov.iov_len = PAGE_SIZE; 2487 auio.uio_iov = &aiov; 2488 auio.uio_iovcnt = 1; 2489 auio.uio_offset = argv + len; 2490 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2491 auio.uio_resid = xlen; 2492 auio.uio_rw = UIO_READ; 2493 UIO_SETUP_SYSSPACE(&auio); 2494 error = uvm_io(&vmspace->vm_map, &auio); 2495 if (error) 2496 goto done; 2497 2498 for (i = 0; i < xlen && nargv != 0; i++) { 2499 if (arg[i] == '\0') 2500 nargv--; /* one full string */ 2501 } 2502 2503 /* 2504 * Make sure we don't copyout past the end of the user's 2505 * buffer. 2506 */ 2507 if (len + i > upper_bound) 2508 i = upper_bound - len; 2509 2510 error = copyout(arg, (char *)oldp + len, i); 2511 if (error) 2512 break; 2513 2514 if (nargv == 0) { 2515 len += i; 2516 break; 2517 } 2518 } 2519 *oldlenp = len; 2520 2521 done: 2522 uvmspace_free(vmspace); 2523 2524 free(arg, M_TEMP); 2525 return error; 2526 2527 out_locked: 2528 proclist_unlock_read(); 2529 return error; 2530 } 2531 2532 /* 2533 * Sysctl helper routine for Verified Exec. 2534 */ 2535 #ifdef VERIFIED_EXEC 2536 static int 2537 sysctl_kern_veriexec(SYSCTLFN_ARGS) 2538 { 2539 int newval, error; 2540 int *var = NULL, raise_only = 0; 2541 struct sysctlnode node; 2542 2543 node = *rnode; 2544 2545 switch (rnode->sysctl_num) { 2546 case VERIEXEC_STRICT: 2547 raise_only = 1; 2548 var = &veriexec_strict; 2549 break; 2550 case VERIEXEC_ALGORITHMS: 2551 node.sysctl_data = veriexec_fp_names; 2552 node.sysctl_size = strlen(veriexec_fp_names) + 1; 2553 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2554 default: 2555 return (EINVAL); 2556 } 2557 2558 newval = *var; 2559 2560 node.sysctl_data = &newval; 2561 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2562 if (error || newp == NULL) { 2563 return (error); 2564 } 2565 2566 if (raise_only && (newval < *var)) 2567 return (EPERM); 2568 2569 *var = newval; 2570 2571 return (error); 2572 } 2573 #endif /* VERIFIED_EXEC */ 2574 2575 static int 2576 sysctl_security_setidcore(SYSCTLFN_ARGS) 2577 { 2578 int newsize, error; 2579 struct sysctlnode node; 2580 2581 node = *rnode; 2582 node.sysctl_data = &newsize; 2583 newsize = *(int *)rnode->sysctl_data; 2584 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2585 if (error || newp == NULL) 2586 return error; 2587 2588 if (securelevel > 0) 2589 return (EPERM); 2590 2591 *(int *)rnode->sysctl_data = newsize; 2592 2593 return 0; 2594 } 2595 2596 static int 2597 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2598 { 2599 int error; 2600 char newsetidcorename[MAXPATHLEN]; 2601 struct sysctlnode node; 2602 2603 node = *rnode; 2604 node.sysctl_data = &newsetidcorename[0]; 2605 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2606 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2607 if (error || newp == NULL) 2608 return (error); 2609 2610 if (securelevel > 0) 2611 return (EPERM); 2612 2613 if (strlen(newsetidcorename) == 0) 2614 return (EINVAL); 2615 2616 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2617 2618 return (0); 2619 } 2620 2621 /* 2622 * sysctl helper routine for kern.cp_id node. maps cpus to their 2623 * cpuids. 2624 */ 2625 static int 2626 sysctl_kern_cpid(SYSCTLFN_ARGS) 2627 { 2628 struct sysctlnode node = *rnode; 2629 2630 #ifndef MULTIPROCESSOR 2631 uint64_t id; 2632 2633 if (namelen == 1) { 2634 if (name[0] != 0) 2635 return (ENOENT); 2636 /* 2637 * you're allowed to ask for the zero'th processor 2638 */ 2639 name++; 2640 namelen--; 2641 } 2642 node.sysctl_data = &id; 2643 node.sysctl_size = sizeof(id); 2644 id = cpu_number(); 2645 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2646 2647 #else /* MULTIPROCESSOR */ 2648 uint64_t *cp_id = NULL; 2649 int error, n = sysctl_ncpus(); 2650 struct cpu_info *ci; 2651 CPU_INFO_ITERATOR cii; 2652 2653 /* 2654 * here you may either retrieve a single cpu id or the whole 2655 * set. the size you get back when probing depends on what 2656 * you ask for. 2657 */ 2658 switch (namelen) { 2659 case 0: 2660 node.sysctl_size = n * sizeof(uint64_t); 2661 n = -2; /* ALL */ 2662 break; 2663 case 1: 2664 if (name[0] < 0 || name[0] >= n) 2665 return (ENOENT); /* ENOSUCHPROCESSOR */ 2666 node.sysctl_size = sizeof(uint64_t); 2667 n = name[0]; 2668 /* 2669 * adjust these so that sysctl_lookup() will be happy 2670 */ 2671 name++; 2672 namelen--; 2673 break; 2674 default: 2675 return (EINVAL); 2676 } 2677 2678 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2679 if (cp_id == NULL) 2680 return (ENOMEM); 2681 node.sysctl_data = cp_id; 2682 memset(cp_id, 0, node.sysctl_size); 2683 2684 for (CPU_INFO_FOREACH(cii, ci)) { 2685 if (n <= 0) 2686 cp_id[0] = ci->ci_cpuid; 2687 /* 2688 * if a specific processor was requested and we just 2689 * did it, we're done here 2690 */ 2691 if (n == 0) 2692 break; 2693 /* 2694 * if doing "all", skip to next cp_id slot for next processor 2695 */ 2696 if (n == -2) 2697 cp_id++; 2698 /* 2699 * if we're doing a specific processor, we're one 2700 * processor closer 2701 */ 2702 if (n > 0) 2703 n--; 2704 } 2705 2706 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2707 free(node.sysctl_data, M_TEMP); 2708 return (error); 2709 2710 #endif /* MULTIPROCESSOR */ 2711 } 2712 2713 /* 2714 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2715 * calculate on the fly taking into account integer overflow and the 2716 * current wired count. 2717 */ 2718 static int 2719 sysctl_hw_usermem(SYSCTLFN_ARGS) 2720 { 2721 u_int ui; 2722 u_quad_t uq; 2723 struct sysctlnode node; 2724 2725 node = *rnode; 2726 switch (rnode->sysctl_num) { 2727 case HW_USERMEM: 2728 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2729 ui = UINT_MAX; 2730 else 2731 ui *= PAGE_SIZE; 2732 node.sysctl_data = &ui; 2733 break; 2734 case HW_USERMEM64: 2735 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2736 node.sysctl_data = &uq; 2737 break; 2738 default: 2739 return (EINVAL); 2740 } 2741 2742 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2743 } 2744 2745 /* 2746 * sysctl helper routine for kern.cnmagic node. pulls the old value 2747 * out, encoded, and stuffs the new value in for decoding. 2748 */ 2749 static int 2750 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2751 { 2752 char magic[CNS_LEN]; 2753 int error; 2754 struct sysctlnode node; 2755 2756 if (oldp) 2757 cn_get_magic(magic, CNS_LEN); 2758 node = *rnode; 2759 node.sysctl_data = &magic[0]; 2760 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2761 if (error || newp == NULL) 2762 return (error); 2763 2764 return (cn_set_magic(magic)); 2765 } 2766 2767 static int 2768 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2769 { 2770 int ncpu; 2771 struct sysctlnode node; 2772 2773 ncpu = sysctl_ncpus(); 2774 node = *rnode; 2775 node.sysctl_data = &ncpu; 2776 2777 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2778 } 2779 2780 2781 /* 2782 * ******************************************************************** 2783 * section 3: public helper routines that are used for more than one 2784 * node 2785 * ******************************************************************** 2786 */ 2787 2788 /* 2789 * sysctl helper routine for the kern.root_device node and some ports' 2790 * machdep.root_device nodes. 2791 */ 2792 int 2793 sysctl_root_device(SYSCTLFN_ARGS) 2794 { 2795 struct sysctlnode node; 2796 2797 node = *rnode; 2798 node.sysctl_data = root_device->dv_xname; 2799 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2800 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2801 } 2802 2803 /* 2804 * sysctl helper routine for kern.consdev, dependent on the current 2805 * state of the console. also used for machdep.console_device on some 2806 * ports. 2807 */ 2808 int 2809 sysctl_consdev(SYSCTLFN_ARGS) 2810 { 2811 dev_t consdev; 2812 struct sysctlnode node; 2813 2814 if (cn_tab != NULL) 2815 consdev = cn_tab->cn_dev; 2816 else 2817 consdev = NODEV; 2818 node = *rnode; 2819 node.sysctl_data = &consdev; 2820 node.sysctl_size = sizeof(consdev); 2821 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2822 } 2823 2824 /* 2825 * ******************************************************************** 2826 * section 4: support for some helpers 2827 * ******************************************************************** 2828 */ 2829 2830 /* 2831 * Fill in a kinfo_proc2 structure for the specified process. 2832 */ 2833 static void 2834 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2835 { 2836 struct tty *tp; 2837 struct lwp *l; 2838 struct timeval ut, st; 2839 2840 memset(ki, 0, sizeof(*ki)); 2841 2842 ki->p_paddr = PTRTOUINT64(p); 2843 ki->p_fd = PTRTOUINT64(p->p_fd); 2844 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2845 ki->p_stats = PTRTOUINT64(p->p_stats); 2846 ki->p_limit = PTRTOUINT64(p->p_limit); 2847 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2848 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2849 ki->p_sess = PTRTOUINT64(p->p_session); 2850 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2851 ki->p_ru = PTRTOUINT64(p->p_ru); 2852 2853 ki->p_eflag = 0; 2854 ki->p_exitsig = p->p_exitsig; 2855 ki->p_flag = p->p_flag; 2856 2857 ki->p_pid = p->p_pid; 2858 if (p->p_pptr) 2859 ki->p_ppid = p->p_pptr->p_pid; 2860 else 2861 ki->p_ppid = 0; 2862 ki->p_sid = p->p_session->s_sid; 2863 ki->p__pgid = p->p_pgrp->pg_id; 2864 2865 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2866 2867 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2868 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2869 ki->p_gid = kauth_cred_getegid(p->p_cred); 2870 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2871 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2872 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2873 2874 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2875 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2876 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0]))); 2877 2878 ki->p_jobc = p->p_pgrp->pg_jobc; 2879 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2880 ki->p_tdev = tp->t_dev; 2881 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2882 ki->p_tsess = PTRTOUINT64(tp->t_session); 2883 } else { 2884 ki->p_tdev = NODEV; 2885 } 2886 2887 ki->p_estcpu = p->p_estcpu; 2888 ki->p_rtime_sec = p->p_rtime.tv_sec; 2889 ki->p_rtime_usec = p->p_rtime.tv_usec; 2890 ki->p_cpticks = p->p_cpticks; 2891 ki->p_pctcpu = p->p_pctcpu; 2892 2893 ki->p_uticks = p->p_uticks; 2894 ki->p_sticks = p->p_sticks; 2895 ki->p_iticks = p->p_iticks; 2896 2897 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2898 ki->p_traceflag = p->p_traceflag; 2899 2900 2901 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2902 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2903 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2904 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2905 2906 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2907 ki->p_realstat = p->p_stat; 2908 ki->p_nice = p->p_nice; 2909 2910 ki->p_xstat = p->p_xstat; 2911 ki->p_acflag = p->p_acflag; 2912 2913 strncpy(ki->p_comm, p->p_comm, 2914 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2915 2916 strncpy(ki->p_login, p->p_session->s_login, 2917 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2918 2919 ki->p_nlwps = p->p_nlwps; 2920 ki->p_nrlwps = p->p_nrlwps; 2921 ki->p_realflag = p->p_flag; 2922 2923 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2924 ki->p_vm_rssize = 0; 2925 ki->p_vm_tsize = 0; 2926 ki->p_vm_dsize = 0; 2927 ki->p_vm_ssize = 0; 2928 l = NULL; 2929 } else { 2930 struct vmspace *vm = p->p_vmspace; 2931 2932 ki->p_vm_rssize = vm_resident_count(vm); 2933 ki->p_vm_tsize = vm->vm_tsize; 2934 ki->p_vm_dsize = vm->vm_dsize; 2935 ki->p_vm_ssize = vm->vm_ssize; 2936 2937 /* Pick a "representative" LWP */ 2938 l = proc_representative_lwp(p); 2939 ki->p_forw = PTRTOUINT64(l->l_forw); 2940 ki->p_back = PTRTOUINT64(l->l_back); 2941 ki->p_addr = PTRTOUINT64(l->l_addr); 2942 ki->p_stat = l->l_stat; 2943 ki->p_flag |= l->l_flag & P_SHARED; 2944 ki->p_swtime = l->l_swtime; 2945 ki->p_slptime = l->l_slptime; 2946 if (l->l_stat == LSONPROC) { 2947 KDASSERT(l->l_cpu != NULL); 2948 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2949 } else 2950 ki->p_schedflags = 0; 2951 ki->p_holdcnt = l->l_holdcnt; 2952 ki->p_priority = l->l_priority; 2953 ki->p_usrpri = l->l_usrpri; 2954 if (l->l_wmesg) 2955 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2956 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2957 2958 } 2959 2960 if (p->p_session->s_ttyvp) 2961 ki->p_eflag |= EPROC_CTTY; 2962 if (SESS_LEADER(p)) 2963 ki->p_eflag |= EPROC_SLEADER; 2964 2965 /* XXX Is this double check necessary? */ 2966 if (P_ZOMBIE(p)) { 2967 ki->p_uvalid = 0; 2968 } else { 2969 ki->p_uvalid = 1; 2970 2971 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2972 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2973 2974 calcru(p, &ut, &st, 0); 2975 ki->p_uutime_sec = ut.tv_sec; 2976 ki->p_uutime_usec = ut.tv_usec; 2977 ki->p_ustime_sec = st.tv_sec; 2978 ki->p_ustime_usec = st.tv_usec; 2979 2980 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2981 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2982 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2983 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2984 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2985 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2986 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2987 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2988 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2989 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2990 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2991 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2992 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 2993 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 2994 2995 timeradd(&p->p_stats->p_cru.ru_utime, 2996 &p->p_stats->p_cru.ru_stime, &ut); 2997 ki->p_uctime_sec = ut.tv_sec; 2998 ki->p_uctime_usec = ut.tv_usec; 2999 } 3000 #ifdef MULTIPROCESSOR 3001 if (l && l->l_cpu != NULL) 3002 ki->p_cpuid = l->l_cpu->ci_cpuid; 3003 else 3004 #endif 3005 ki->p_cpuid = KI_NOCPU; 3006 } 3007 3008 /* 3009 * Fill in a kinfo_lwp structure for the specified lwp. 3010 */ 3011 static void 3012 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3013 { 3014 3015 kl->l_forw = PTRTOUINT64(l->l_forw); 3016 kl->l_back = PTRTOUINT64(l->l_back); 3017 kl->l_laddr = PTRTOUINT64(l); 3018 kl->l_addr = PTRTOUINT64(l->l_addr); 3019 kl->l_stat = l->l_stat; 3020 kl->l_lid = l->l_lid; 3021 kl->l_flag = l->l_flag; 3022 3023 kl->l_swtime = l->l_swtime; 3024 kl->l_slptime = l->l_slptime; 3025 if (l->l_stat == LSONPROC) { 3026 KDASSERT(l->l_cpu != NULL); 3027 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3028 } else 3029 kl->l_schedflags = 0; 3030 kl->l_holdcnt = l->l_holdcnt; 3031 kl->l_priority = l->l_priority; 3032 kl->l_usrpri = l->l_usrpri; 3033 if (l->l_wmesg) 3034 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3035 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3036 #ifdef MULTIPROCESSOR 3037 if (l->l_cpu != NULL) 3038 kl->l_cpuid = l->l_cpu->ci_cpuid; 3039 else 3040 #endif 3041 kl->l_cpuid = KI_NOCPU; 3042 } 3043 3044 /* 3045 * Fill in an eproc structure for the specified process. 3046 */ 3047 void 3048 fill_eproc(struct proc *p, struct eproc *ep) 3049 { 3050 struct tty *tp; 3051 struct lwp *l; 3052 struct pcred pc; 3053 struct ucred uc; 3054 3055 ep->e_paddr = p; 3056 ep->e_sess = p->p_session; 3057 kauth_cred_topcred(p->p_cred, &pc); 3058 kauth_cred_toucred(p->p_cred, &uc); 3059 ep->e_pcred = pc; 3060 ep->e_ucred = uc; 3061 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 3062 ep->e_vm.vm_rssize = 0; 3063 ep->e_vm.vm_tsize = 0; 3064 ep->e_vm.vm_dsize = 0; 3065 ep->e_vm.vm_ssize = 0; 3066 /* ep->e_vm.vm_pmap = XXX; */ 3067 } else { 3068 struct vmspace *vm = p->p_vmspace; 3069 3070 ep->e_vm.vm_rssize = vm_resident_count(vm); 3071 ep->e_vm.vm_tsize = vm->vm_tsize; 3072 ep->e_vm.vm_dsize = vm->vm_dsize; 3073 ep->e_vm.vm_ssize = vm->vm_ssize; 3074 3075 /* Pick a "representative" LWP */ 3076 l = proc_representative_lwp(p); 3077 3078 if (l->l_wmesg) 3079 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3080 } 3081 if (p->p_pptr) 3082 ep->e_ppid = p->p_pptr->p_pid; 3083 else 3084 ep->e_ppid = 0; 3085 ep->e_pgid = p->p_pgrp->pg_id; 3086 ep->e_sid = ep->e_sess->s_sid; 3087 ep->e_jobc = p->p_pgrp->pg_jobc; 3088 if ((p->p_flag & P_CONTROLT) && 3089 (tp = ep->e_sess->s_ttyp)) { 3090 ep->e_tdev = tp->t_dev; 3091 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3092 ep->e_tsess = tp->t_session; 3093 } else 3094 ep->e_tdev = NODEV; 3095 3096 ep->e_xsize = ep->e_xrssize = 0; 3097 ep->e_xccount = ep->e_xswrss = 0; 3098 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3099 if (SESS_LEADER(p)) 3100 ep->e_flag |= EPROC_SLEADER; 3101 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3102 } 3103
Indexes created Mon Sep 22 05:09:51 GMT 2025