init_sysctl.c revision 1.75
1 /* $NetBSD: init_sysctl.c,v 1.75 2006/07/14 21:55:19 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 1.75 2006/07/14 21:55:19 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 #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 const struct sysctlnode *rnode; 281 282 sysctl_createv(clog, 0, NULL, NULL, 283 CTLFLAG_PERMANENT, 284 CTLTYPE_NODE, "kern", NULL, 285 NULL, 0, NULL, 0, 286 CTL_KERN, CTL_EOL); 287 288 sysctl_createv(clog, 0, NULL, NULL, 289 CTLFLAG_PERMANENT, 290 CTLTYPE_STRING, "ostype", 291 SYSCTL_DESCR("Operating system type"), 292 NULL, 0, &ostype, 0, 293 CTL_KERN, KERN_OSTYPE, CTL_EOL); 294 sysctl_createv(clog, 0, NULL, NULL, 295 CTLFLAG_PERMANENT, 296 CTLTYPE_STRING, "osrelease", 297 SYSCTL_DESCR("Operating system release"), 298 NULL, 0, &osrelease, 0, 299 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 300 sysctl_createv(clog, 0, NULL, NULL, 301 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 302 CTLTYPE_INT, "osrevision", 303 SYSCTL_DESCR("Operating system revision"), 304 NULL, __NetBSD_Version__, NULL, 0, 305 CTL_KERN, KERN_OSREV, CTL_EOL); 306 sysctl_createv(clog, 0, NULL, NULL, 307 CTLFLAG_PERMANENT, 308 CTLTYPE_STRING, "version", 309 SYSCTL_DESCR("Kernel version"), 310 NULL, 0, &version, 0, 311 CTL_KERN, KERN_VERSION, CTL_EOL); 312 sysctl_createv(clog, 0, NULL, NULL, 313 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 314 CTLTYPE_INT, "maxvnodes", 315 SYSCTL_DESCR("Maximum number of vnodes"), 316 sysctl_kern_maxvnodes, 0, NULL, 0, 317 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 318 sysctl_createv(clog, 0, NULL, NULL, 319 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 320 CTLTYPE_INT, "maxproc", 321 SYSCTL_DESCR("Maximum number of simultaneous processes"), 322 sysctl_kern_maxproc, 0, NULL, 0, 323 CTL_KERN, KERN_MAXPROC, CTL_EOL); 324 sysctl_createv(clog, 0, NULL, NULL, 325 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 326 CTLTYPE_INT, "maxfiles", 327 SYSCTL_DESCR("Maximum number of open files"), 328 NULL, 0, &maxfiles, 0, 329 CTL_KERN, KERN_MAXFILES, CTL_EOL); 330 sysctl_createv(clog, 0, NULL, NULL, 331 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 332 CTLTYPE_INT, "argmax", 333 SYSCTL_DESCR("Maximum number of bytes of arguments to " 334 "execve(2)"), 335 NULL, ARG_MAX, NULL, 0, 336 CTL_KERN, KERN_ARGMAX, CTL_EOL); 337 sysctl_createv(clog, 0, NULL, NULL, 338 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 339 CTLTYPE_STRING, "hostname", 340 SYSCTL_DESCR("System hostname"), 341 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 342 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 343 sysctl_createv(clog, 0, NULL, NULL, 344 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 345 CTLTYPE_INT, "hostid", 346 SYSCTL_DESCR("System host ID number"), 347 sysctl_kern_hostid, 0, NULL, 0, 348 CTL_KERN, KERN_HOSTID, CTL_EOL); 349 sysctl_createv(clog, 0, NULL, NULL, 350 CTLFLAG_PERMANENT, 351 CTLTYPE_STRUCT, "clockrate", 352 SYSCTL_DESCR("Kernel clock rates"), 353 sysctl_kern_clockrate, 0, NULL, 354 sizeof(struct clockinfo), 355 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 356 sysctl_createv(clog, 0, NULL, NULL, 357 CTLFLAG_PERMANENT, 358 CTLTYPE_INT, "hardclock_ticks", 359 SYSCTL_DESCR("Number of hardclock ticks"), 360 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 361 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 362 sysctl_createv(clog, 0, NULL, NULL, 363 CTLFLAG_PERMANENT, 364 CTLTYPE_STRUCT, "vnode", 365 SYSCTL_DESCR("System vnode table"), 366 sysctl_kern_vnode, 0, NULL, 0, 367 CTL_KERN, KERN_VNODE, CTL_EOL); 368 sysctl_createv(clog, 0, NULL, NULL, 369 CTLFLAG_PERMANENT, 370 CTLTYPE_STRUCT, "file", 371 SYSCTL_DESCR("System open file table"), 372 sysctl_kern_file, 0, NULL, 0, 373 CTL_KERN, KERN_FILE, CTL_EOL); 374 #ifndef GPROF 375 sysctl_createv(clog, 0, NULL, NULL, 376 CTLFLAG_PERMANENT, 377 CTLTYPE_NODE, "profiling", 378 SYSCTL_DESCR("Profiling information (not available)"), 379 sysctl_notavail, 0, NULL, 0, 380 CTL_KERN, KERN_PROF, CTL_EOL); 381 #endif 382 sysctl_createv(clog, 0, NULL, NULL, 383 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 384 CTLTYPE_INT, "posix1version", 385 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 386 "with which the operating system attempts " 387 "to comply"), 388 NULL, _POSIX_VERSION, NULL, 0, 389 CTL_KERN, KERN_POSIX1, CTL_EOL); 390 sysctl_createv(clog, 0, NULL, NULL, 391 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 392 CTLTYPE_INT, "ngroups", 393 SYSCTL_DESCR("Maximum number of supplemental groups"), 394 NULL, NGROUPS_MAX, NULL, 0, 395 CTL_KERN, KERN_NGROUPS, CTL_EOL); 396 sysctl_createv(clog, 0, NULL, NULL, 397 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 398 CTLTYPE_INT, "job_control", 399 SYSCTL_DESCR("Whether job control is available"), 400 NULL, 1, NULL, 0, 401 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 402 sysctl_createv(clog, 0, NULL, NULL, 403 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 404 CTLTYPE_INT, "saved_ids", 405 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 406 "available"), NULL, 407 #ifdef _POSIX_SAVED_IDS 408 1, 409 #else /* _POSIX_SAVED_IDS */ 410 0, 411 #endif /* _POSIX_SAVED_IDS */ 412 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 413 sysctl_createv(clog, 0, NULL, NULL, 414 CTLFLAG_PERMANENT, 415 CTLTYPE_STRUCT, "boottime", 416 SYSCTL_DESCR("System boot time"), 417 NULL, 0, &boottime, sizeof(boottime), 418 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 419 sysctl_createv(clog, 0, NULL, NULL, 420 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 421 CTLTYPE_STRING, "domainname", 422 SYSCTL_DESCR("YP domain name"), 423 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 424 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 425 sysctl_createv(clog, 0, NULL, NULL, 426 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 427 CTLTYPE_INT, "maxpartitions", 428 SYSCTL_DESCR("Maximum number of partitions allowed per " 429 "disk"), 430 NULL, MAXPARTITIONS, NULL, 0, 431 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 432 sysctl_createv(clog, 0, NULL, NULL, 433 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 434 CTLTYPE_INT, "rawpartition", 435 SYSCTL_DESCR("Raw partition of a disk"), 436 NULL, RAW_PART, NULL, 0, 437 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 438 sysctl_createv(clog, 0, NULL, NULL, 439 CTLFLAG_PERMANENT, 440 CTLTYPE_STRUCT, "timex", NULL, 441 sysctl_notavail, 0, NULL, 0, 442 CTL_KERN, KERN_TIMEX, CTL_EOL); 443 sysctl_createv(clog, 0, NULL, NULL, 444 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 445 CTLTYPE_INT, "autonicetime", 446 SYSCTL_DESCR("CPU clock seconds before non-root " 447 "process priority is lowered"), 448 sysctl_kern_autonice, 0, &autonicetime, 0, 449 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 450 sysctl_createv(clog, 0, NULL, NULL, 451 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 452 CTLTYPE_INT, "autoniceval", 453 SYSCTL_DESCR("Automatic reniced non-root process " 454 "priority"), 455 sysctl_kern_autonice, 0, &autoniceval, 0, 456 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 457 sysctl_createv(clog, 0, NULL, NULL, 458 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 459 CTLTYPE_INT, "rtc_offset", 460 SYSCTL_DESCR("Offset of real time clock from UTC in " 461 "minutes"), 462 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 463 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 464 sysctl_createv(clog, 0, NULL, NULL, 465 CTLFLAG_PERMANENT, 466 CTLTYPE_STRING, "root_device", 467 SYSCTL_DESCR("Name of the root device"), 468 sysctl_root_device, 0, NULL, 0, 469 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 470 sysctl_createv(clog, 0, NULL, NULL, 471 CTLFLAG_PERMANENT, 472 CTLTYPE_INT, "msgbufsize", 473 SYSCTL_DESCR("Size of the kernel message buffer"), 474 sysctl_msgbuf, 0, NULL, 0, 475 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 476 sysctl_createv(clog, 0, NULL, NULL, 477 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 478 CTLTYPE_INT, "fsync", 479 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 480 "Synchronization Option is available on " 481 "this system"), 482 NULL, 1, NULL, 0, 483 CTL_KERN, KERN_FSYNC, CTL_EOL); 484 sysctl_createv(clog, 0, NULL, NULL, 485 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 486 CTLTYPE_INT, "sysvmsg", 487 SYSCTL_DESCR("System V style message support available"), 488 NULL, 489 #ifdef SYSVMSG 490 1, 491 #else /* SYSVMSG */ 492 0, 493 #endif /* SYSVMSG */ 494 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 495 sysctl_createv(clog, 0, NULL, NULL, 496 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 497 CTLTYPE_INT, "sysvsem", 498 SYSCTL_DESCR("System V style semaphore support " 499 "available"), NULL, 500 #ifdef SYSVSEM 501 1, 502 #else /* SYSVSEM */ 503 0, 504 #endif /* SYSVSEM */ 505 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 506 sysctl_createv(clog, 0, NULL, NULL, 507 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 508 CTLTYPE_INT, "sysvshm", 509 SYSCTL_DESCR("System V style shared memory support " 510 "available"), NULL, 511 #ifdef SYSVSHM 512 1, 513 #else /* SYSVSHM */ 514 0, 515 #endif /* SYSVSHM */ 516 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 517 sysctl_createv(clog, 0, NULL, NULL, 518 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 519 CTLTYPE_INT, "synchronized_io", 520 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 521 "I/O Option is available on this system"), 522 NULL, 1, NULL, 0, 523 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 524 sysctl_createv(clog, 0, NULL, NULL, 525 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 526 CTLTYPE_INT, "iov_max", 527 SYSCTL_DESCR("Maximum number of iovec structures per " 528 "process"), 529 NULL, IOV_MAX, NULL, 0, 530 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 531 sysctl_createv(clog, 0, NULL, NULL, 532 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 533 CTLTYPE_INT, "mapped_files", 534 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 535 "Files Option is available on this system"), 536 NULL, 1, NULL, 0, 537 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 538 sysctl_createv(clog, 0, NULL, NULL, 539 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 540 CTLTYPE_INT, "memlock", 541 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 542 "Locking Option is available on this " 543 "system"), 544 NULL, 1, NULL, 0, 545 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 546 sysctl_createv(clog, 0, NULL, NULL, 547 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 548 CTLTYPE_INT, "memlock_range", 549 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 550 "Locking Option is available on this " 551 "system"), 552 NULL, 1, NULL, 0, 553 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 554 sysctl_createv(clog, 0, NULL, NULL, 555 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 556 CTLTYPE_INT, "memory_protection", 557 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 558 "Protection Option is available on this " 559 "system"), 560 NULL, 1, NULL, 0, 561 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 562 sysctl_createv(clog, 0, NULL, NULL, 563 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 564 CTLTYPE_INT, "login_name_max", 565 SYSCTL_DESCR("Maximum login name length"), 566 NULL, LOGIN_NAME_MAX, NULL, 0, 567 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 568 sysctl_createv(clog, 0, NULL, NULL, 569 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 570 CTLTYPE_STRING, "defcorename", 571 SYSCTL_DESCR("Default core file name"), 572 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 573 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 574 sysctl_createv(clog, 0, NULL, NULL, 575 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 576 CTLTYPE_INT, "logsigexit", 577 SYSCTL_DESCR("Log process exit when caused by signals"), 578 NULL, 0, &kern_logsigexit, 0, 579 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 580 sysctl_createv(clog, 0, NULL, NULL, 581 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 582 CTLTYPE_INT, "fscale", 583 SYSCTL_DESCR("Kernel fixed-point scale factor"), 584 NULL, FSCALE, NULL, 0, 585 CTL_KERN, KERN_FSCALE, CTL_EOL); 586 sysctl_createv(clog, 0, NULL, NULL, 587 CTLFLAG_PERMANENT, 588 CTLTYPE_INT, "ccpu", 589 SYSCTL_DESCR("Scheduler exponential decay value"), 590 NULL, 0, &ccpu, 0, 591 CTL_KERN, KERN_CCPU, CTL_EOL); 592 sysctl_createv(clog, 0, NULL, NULL, 593 CTLFLAG_PERMANENT, 594 CTLTYPE_STRUCT, "cp_time", 595 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 596 sysctl_kern_cptime, 0, NULL, 0, 597 CTL_KERN, KERN_CP_TIME, CTL_EOL); 598 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 599 sysctl_createv(clog, 0, NULL, NULL, 600 CTLFLAG_PERMANENT, 601 CTLTYPE_STRUCT, "sysvipc_info", 602 SYSCTL_DESCR("System V style IPC information"), 603 sysctl_kern_sysvipc, 0, NULL, 0, 604 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 605 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 606 sysctl_createv(clog, 0, NULL, NULL, 607 CTLFLAG_PERMANENT, 608 CTLTYPE_INT, "msgbuf", 609 SYSCTL_DESCR("Kernel message buffer"), 610 sysctl_msgbuf, 0, NULL, 0, 611 CTL_KERN, KERN_MSGBUF, CTL_EOL); 612 sysctl_createv(clog, 0, NULL, NULL, 613 CTLFLAG_PERMANENT, 614 CTLTYPE_STRUCT, "consdev", 615 SYSCTL_DESCR("Console device"), 616 sysctl_consdev, 0, NULL, sizeof(dev_t), 617 CTL_KERN, KERN_CONSDEV, CTL_EOL); 618 #if NPTY > 0 619 sysctl_createv(clog, 0, NULL, NULL, 620 CTLFLAG_PERMANENT, 621 CTLTYPE_INT, "maxptys", 622 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 623 sysctl_kern_maxptys, 0, NULL, 0, 624 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 625 #endif /* NPTY > 0 */ 626 sysctl_createv(clog, 0, NULL, NULL, 627 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 628 CTLTYPE_INT, "maxphys", 629 SYSCTL_DESCR("Maximum raw I/O transfer size"), 630 NULL, MAXPHYS, NULL, 0, 631 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 632 sysctl_createv(clog, 0, NULL, NULL, 633 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 634 CTLTYPE_INT, "sbmax", 635 SYSCTL_DESCR("Maximum socket buffer size"), 636 sysctl_kern_sbmax, 0, NULL, 0, 637 CTL_KERN, KERN_SBMAX, CTL_EOL); 638 sysctl_createv(clog, 0, NULL, NULL, 639 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 640 CTLTYPE_INT, "monotonic_clock", 641 SYSCTL_DESCR("Implementation version of the POSIX " 642 "1003.1b Monotonic Clock Option"), 643 /* XXX _POSIX_VERSION */ 644 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 645 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 646 sysctl_createv(clog, 0, NULL, NULL, 647 CTLFLAG_PERMANENT, 648 CTLTYPE_INT, "urandom", 649 SYSCTL_DESCR("Random integer value"), 650 sysctl_kern_urnd, 0, NULL, 0, 651 CTL_KERN, KERN_URND, CTL_EOL); 652 sysctl_createv(clog, 0, NULL, NULL, 653 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 654 CTLTYPE_INT, "labelsector", 655 SYSCTL_DESCR("Sector number containing the disklabel"), 656 NULL, LABELSECTOR, NULL, 0, 657 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 658 sysctl_createv(clog, 0, NULL, NULL, 659 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 660 CTLTYPE_INT, "labeloffset", 661 SYSCTL_DESCR("Offset of the disklabel within the " 662 "sector"), 663 NULL, LABELOFFSET, NULL, 0, 664 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 665 sysctl_createv(clog, 0, NULL, NULL, 666 CTLFLAG_PERMANENT, 667 CTLTYPE_NODE, "lwp", 668 SYSCTL_DESCR("System-wide LWP information"), 669 sysctl_kern_lwp, 0, NULL, 0, 670 CTL_KERN, KERN_LWP, CTL_EOL); 671 sysctl_createv(clog, 0, NULL, NULL, 672 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 673 CTLTYPE_INT, "forkfsleep", 674 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 675 "to process limits"), 676 sysctl_kern_forkfsleep, 0, NULL, 0, 677 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 678 sysctl_createv(clog, 0, NULL, NULL, 679 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 680 CTLTYPE_INT, "posix_threads", 681 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 682 "Threads option to which the system " 683 "attempts to conform"), 684 /* XXX _POSIX_VERSION */ 685 NULL, _POSIX_THREADS, NULL, 0, 686 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 687 sysctl_createv(clog, 0, NULL, NULL, 688 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 689 CTLTYPE_INT, "posix_semaphores", 690 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 691 "Semaphores option to which the system " 692 "attempts to conform"), NULL, 693 #ifdef P1003_1B_SEMAPHORE 694 200112, 695 #else /* P1003_1B_SEMAPHORE */ 696 0, 697 #endif /* P1003_1B_SEMAPHORE */ 698 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 699 sysctl_createv(clog, 0, NULL, NULL, 700 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 701 CTLTYPE_INT, "posix_barriers", 702 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 703 "Barriers option to which the system " 704 "attempts to conform"), 705 /* XXX _POSIX_VERSION */ 706 NULL, _POSIX_BARRIERS, NULL, 0, 707 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 708 sysctl_createv(clog, 0, NULL, NULL, 709 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 710 CTLTYPE_INT, "posix_timers", 711 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 712 "Timers option to which the system " 713 "attempts to conform"), 714 /* XXX _POSIX_VERSION */ 715 NULL, _POSIX_TIMERS, NULL, 0, 716 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 717 sysctl_createv(clog, 0, NULL, NULL, 718 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 719 CTLTYPE_INT, "posix_spin_locks", 720 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 721 "Locks option to which the system attempts " 722 "to conform"), 723 /* XXX _POSIX_VERSION */ 724 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 725 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 726 sysctl_createv(clog, 0, NULL, NULL, 727 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 728 CTLTYPE_INT, "posix_reader_writer_locks", 729 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 730 "Read-Write Locks option to which the " 731 "system attempts to conform"), 732 /* XXX _POSIX_VERSION */ 733 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 734 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 735 sysctl_createv(clog, 0, NULL, NULL, 736 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 737 CTLTYPE_INT, "dump_on_panic", 738 SYSCTL_DESCR("Perform a crash dump on system panic"), 739 NULL, 0, &dumponpanic, 0, 740 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 741 #ifdef DIAGNOSTIC 742 sysctl_createv(clog, 0, NULL, NULL, 743 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 744 CTLTYPE_INT, "panic_now", 745 SYSCTL_DESCR("Trigger a panic"), 746 sysctl_kern_trigger_panic, 0, NULL, 0, 747 CTL_KERN, CTL_CREATE, CTL_EOL); 748 #endif 749 sysctl_createv(clog, 0, NULL, NULL, 750 CTLFLAG_PERMANENT, 751 CTLTYPE_INT, "root_partition", 752 SYSCTL_DESCR("Root partition on the root device"), 753 sysctl_kern_root_partition, 0, NULL, 0, 754 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 755 sysctl_createv(clog, 0, NULL, NULL, 756 CTLFLAG_PERMANENT, 757 CTLTYPE_STRUCT, "drivers", 758 SYSCTL_DESCR("List of all drivers with block and " 759 "character device numbers"), 760 sysctl_kern_drivers, 0, NULL, 0, 761 CTL_KERN, KERN_DRIVERS, CTL_EOL); 762 sysctl_createv(clog, 0, NULL, NULL, 763 CTLFLAG_PERMANENT, 764 CTLTYPE_STRUCT, "file2", 765 SYSCTL_DESCR("System open file table"), 766 sysctl_kern_file2, 0, NULL, 0, 767 CTL_KERN, KERN_FILE2, CTL_EOL); 768 #ifdef VERIFIED_EXEC 769 sysctl_createv(clog, 0, NULL, NULL, 770 CTLFLAG_PERMANENT, 771 CTLTYPE_NODE, "veriexec", 772 SYSCTL_DESCR("Verified Exec"), 773 NULL, 0, NULL, 0, 774 CTL_KERN, KERN_VERIEXEC, CTL_EOL); 775 sysctl_createv(clog, 0, NULL, NULL, 776 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 777 CTLTYPE_INT, "verbose", 778 SYSCTL_DESCR("Verified Exec verbose level"), 779 NULL, 0, &veriexec_verbose, 0, 780 CTL_KERN, KERN_VERIEXEC, VERIEXEC_VERBOSE, 781 CTL_EOL); 782 sysctl_createv(clog, 0, NULL, NULL, 783 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 784 CTLTYPE_INT, "strict", 785 SYSCTL_DESCR("Verified Exec strict level"), 786 sysctl_kern_veriexec, 0, NULL, 0, 787 CTL_KERN, KERN_VERIEXEC, VERIEXEC_STRICT, CTL_EOL); 788 sysctl_createv(clog, 0, NULL, NULL, 789 CTLFLAG_PERMANENT, 790 CTLTYPE_STRING, "algorithms", 791 SYSCTL_DESCR("Verified Exec supported hashing " 792 "algorithms"), 793 sysctl_kern_veriexec, 0, NULL, 0, 794 CTL_KERN, KERN_VERIEXEC, VERIEXEC_ALGORITHMS, CTL_EOL); 795 sysctl_createv(clog, 0, NULL, &veriexec_count_node, 796 CTLFLAG_PERMANENT, 797 CTLTYPE_NODE, "count", 798 SYSCTL_DESCR("Number of fingerprints on device(s)"), 799 NULL, 0, NULL, 0, 800 CTL_KERN, KERN_VERIEXEC, VERIEXEC_COUNT, CTL_EOL); 801 #endif /* VERIFIED_EXEC */ 802 sysctl_createv(clog, 0, NULL, NULL, 803 CTLFLAG_PERMANENT, 804 CTLTYPE_STRUCT, "cp_id", 805 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 806 sysctl_kern_cpid, 0, NULL, 0, 807 CTL_KERN, KERN_CP_ID, CTL_EOL); 808 809 sysctl_createv(clog, 0, NULL, &rnode, 810 CTLFLAG_PERMANENT, 811 CTLTYPE_NODE, "coredump", 812 SYSCTL_DESCR("Coredump settings."), 813 NULL, 0, NULL, 0, 814 CTL_KERN, CTL_CREATE, CTL_EOL); 815 sysctl_createv(clog, 0, &rnode, &rnode, 816 CTLFLAG_PERMANENT, 817 CTLTYPE_NODE, "setid", 818 SYSCTL_DESCR("Set-id processes' coredump settings."), 819 NULL, 0, NULL, 0, 820 CTL_CREATE, CTL_EOL); 821 sysctl_createv(clog, 0, &rnode, NULL, 822 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 823 CTLTYPE_INT, "dump", 824 SYSCTL_DESCR("Allow set-id processes to dump core."), 825 sysctl_security_setidcore, 0, &security_setidcore_dump, 826 sizeof(security_setidcore_dump), 827 CTL_CREATE, CTL_EOL); 828 sysctl_createv(clog, 0, &rnode, NULL, 829 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 830 CTLTYPE_STRING, "path", 831 SYSCTL_DESCR("Path pattern for set-id coredumps."), 832 sysctl_security_setidcorename, 0, 833 &security_setidcore_path, 834 sizeof(security_setidcore_path), 835 CTL_CREATE, CTL_EOL); 836 sysctl_createv(clog, 0, &rnode, NULL, 837 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 838 CTLTYPE_INT, "owner", 839 SYSCTL_DESCR("Owner id for set-id processes' cores."), 840 sysctl_security_setidcore, 0, &security_setidcore_owner, 841 0, 842 CTL_CREATE, CTL_EOL); 843 sysctl_createv(clog, 0, &rnode, NULL, 844 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 845 CTLTYPE_INT, "group", 846 SYSCTL_DESCR("Group id for set-id processes' cores."), 847 sysctl_security_setidcore, 0, &security_setidcore_group, 848 0, 849 CTL_CREATE, CTL_EOL); 850 sysctl_createv(clog, 0, &rnode, NULL, 851 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 852 CTLTYPE_INT, "mode", 853 SYSCTL_DESCR("Mode for set-id processes' cores."), 854 sysctl_security_setidcore, 0, &security_setidcore_mode, 855 0, 856 CTL_CREATE, CTL_EOL); 857 } 858 859 SYSCTL_SETUP(sysctl_kern_proc_setup, 860 "sysctl kern.proc/proc2/proc_args subtree setup") 861 { 862 863 sysctl_createv(clog, 0, NULL, NULL, 864 CTLFLAG_PERMANENT, 865 CTLTYPE_NODE, "kern", NULL, 866 NULL, 0, NULL, 0, 867 CTL_KERN, CTL_EOL); 868 869 sysctl_createv(clog, 0, NULL, NULL, 870 CTLFLAG_PERMANENT, 871 CTLTYPE_NODE, "proc", 872 SYSCTL_DESCR("System-wide process information"), 873 sysctl_doeproc, 0, NULL, 0, 874 CTL_KERN, KERN_PROC, CTL_EOL); 875 sysctl_createv(clog, 0, NULL, NULL, 876 CTLFLAG_PERMANENT, 877 CTLTYPE_NODE, "proc2", 878 SYSCTL_DESCR("Machine-independent process information"), 879 sysctl_doeproc, 0, NULL, 0, 880 CTL_KERN, KERN_PROC2, CTL_EOL); 881 sysctl_createv(clog, 0, NULL, NULL, 882 CTLFLAG_PERMANENT, 883 CTLTYPE_NODE, "proc_args", 884 SYSCTL_DESCR("Process argument information"), 885 sysctl_kern_proc_args, 0, NULL, 0, 886 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 887 888 /* 889 "nodes" under these: 890 891 KERN_PROC_ALL 892 KERN_PROC_PID pid 893 KERN_PROC_PGRP pgrp 894 KERN_PROC_SESSION sess 895 KERN_PROC_TTY tty 896 KERN_PROC_UID uid 897 KERN_PROC_RUID uid 898 KERN_PROC_GID gid 899 KERN_PROC_RGID gid 900 901 all in all, probably not worth the effort... 902 */ 903 } 904 905 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 906 { 907 u_int u; 908 u_quad_t q; 909 910 sysctl_createv(clog, 0, NULL, NULL, 911 CTLFLAG_PERMANENT, 912 CTLTYPE_NODE, "hw", NULL, 913 NULL, 0, NULL, 0, 914 CTL_HW, CTL_EOL); 915 916 sysctl_createv(clog, 0, NULL, NULL, 917 CTLFLAG_PERMANENT, 918 CTLTYPE_STRING, "machine", 919 SYSCTL_DESCR("Machine class"), 920 NULL, 0, machine, 0, 921 CTL_HW, HW_MACHINE, CTL_EOL); 922 sysctl_createv(clog, 0, NULL, NULL, 923 CTLFLAG_PERMANENT, 924 CTLTYPE_STRING, "model", 925 SYSCTL_DESCR("Machine model"), 926 NULL, 0, cpu_model, 0, 927 CTL_HW, HW_MODEL, CTL_EOL); 928 sysctl_createv(clog, 0, NULL, NULL, 929 CTLFLAG_PERMANENT, 930 CTLTYPE_INT, "ncpu", 931 SYSCTL_DESCR("Number of active CPUs"), 932 sysctl_hw_ncpu, 0, NULL, 0, 933 CTL_HW, HW_NCPU, CTL_EOL); 934 sysctl_createv(clog, 0, NULL, NULL, 935 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 936 CTLTYPE_INT, "byteorder", 937 SYSCTL_DESCR("System byte order"), 938 NULL, BYTE_ORDER, NULL, 0, 939 CTL_HW, HW_BYTEORDER, CTL_EOL); 940 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 941 UINT_MAX : physmem * PAGE_SIZE; 942 sysctl_createv(clog, 0, NULL, NULL, 943 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 944 CTLTYPE_INT, "physmem", 945 SYSCTL_DESCR("Bytes of physical memory"), 946 NULL, u, NULL, 0, 947 CTL_HW, HW_PHYSMEM, CTL_EOL); 948 sysctl_createv(clog, 0, NULL, NULL, 949 CTLFLAG_PERMANENT, 950 CTLTYPE_INT, "usermem", 951 SYSCTL_DESCR("Bytes of non-kernel memory"), 952 sysctl_hw_usermem, 0, NULL, 0, 953 CTL_HW, HW_USERMEM, CTL_EOL); 954 sysctl_createv(clog, 0, NULL, NULL, 955 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 956 CTLTYPE_INT, "pagesize", 957 SYSCTL_DESCR("Software page size"), 958 NULL, PAGE_SIZE, NULL, 0, 959 CTL_HW, HW_PAGESIZE, CTL_EOL); 960 sysctl_createv(clog, 0, NULL, NULL, 961 CTLFLAG_PERMANENT, 962 CTLTYPE_STRING, "machine_arch", 963 SYSCTL_DESCR("Machine CPU class"), 964 NULL, 0, machine_arch, 0, 965 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 966 sysctl_createv(clog, 0, NULL, NULL, 967 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 968 CTLTYPE_INT, "alignbytes", 969 SYSCTL_DESCR("Alignment constraint for all possible " 970 "data types"), 971 NULL, ALIGNBYTES, NULL, 0, 972 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 973 sysctl_createv(clog, 0, NULL, NULL, 974 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 975 CTLTYPE_STRING, "cnmagic", 976 SYSCTL_DESCR("Console magic key sequence"), 977 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 978 CTL_HW, HW_CNMAGIC, CTL_EOL); 979 q = (u_quad_t)physmem * PAGE_SIZE; 980 sysctl_createv(clog, 0, NULL, NULL, 981 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 982 CTLTYPE_QUAD, "physmem64", 983 SYSCTL_DESCR("Bytes of physical memory"), 984 NULL, q, NULL, 0, 985 CTL_HW, HW_PHYSMEM64, CTL_EOL); 986 sysctl_createv(clog, 0, NULL, NULL, 987 CTLFLAG_PERMANENT, 988 CTLTYPE_QUAD, "usermem64", 989 SYSCTL_DESCR("Bytes of non-kernel memory"), 990 sysctl_hw_usermem, 0, NULL, 0, 991 CTL_HW, HW_USERMEM64, CTL_EOL); 992 } 993 994 #ifdef DEBUG 995 /* 996 * Debugging related system variables. 997 */ 998 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 999 struct ctldebug debug5, debug6, debug7, debug8, debug9; 1000 struct ctldebug debug10, debug11, debug12, debug13, debug14; 1001 struct ctldebug debug15, debug16, debug17, debug18, debug19; 1002 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 1003 &debug0, &debug1, &debug2, &debug3, &debug4, 1004 &debug5, &debug6, &debug7, &debug8, &debug9, 1005 &debug10, &debug11, &debug12, &debug13, &debug14, 1006 &debug15, &debug16, &debug17, &debug18, &debug19, 1007 }; 1008 1009 /* 1010 * this setup routine is a replacement for debug_sysctl() 1011 * 1012 * note that it creates several nodes per defined debug variable 1013 */ 1014 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1015 { 1016 struct ctldebug *cdp; 1017 char nodename[20]; 1018 int i; 1019 1020 /* 1021 * two ways here: 1022 * 1023 * the "old" way (debug.name -> value) which was emulated by 1024 * the sysctl(8) binary 1025 * 1026 * the new way, which the sysctl(8) binary was actually using 1027 1028 node debug 1029 node debug.0 1030 string debug.0.name 1031 int debug.0.value 1032 int debug.name 1033 1034 */ 1035 1036 sysctl_createv(clog, 0, NULL, NULL, 1037 CTLFLAG_PERMANENT, 1038 CTLTYPE_NODE, "debug", NULL, 1039 NULL, 0, NULL, 0, 1040 CTL_DEBUG, CTL_EOL); 1041 1042 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1043 cdp = debugvars[i]; 1044 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1045 continue; 1046 1047 snprintf(nodename, sizeof(nodename), "debug%d", i); 1048 sysctl_createv(clog, 0, NULL, NULL, 1049 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1050 CTLTYPE_NODE, nodename, NULL, 1051 NULL, 0, NULL, 0, 1052 CTL_DEBUG, i, CTL_EOL); 1053 sysctl_createv(clog, 0, NULL, NULL, 1054 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1055 CTLTYPE_STRING, "name", NULL, 1056 /*XXXUNCONST*/ 1057 NULL, 0, __UNCONST(cdp->debugname), 0, 1058 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1059 sysctl_createv(clog, 0, NULL, NULL, 1060 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1061 CTLTYPE_INT, "value", NULL, 1062 NULL, 0, cdp->debugvar, 0, 1063 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1064 sysctl_createv(clog, 0, NULL, NULL, 1065 CTLFLAG_PERMANENT, 1066 CTLTYPE_INT, cdp->debugname, NULL, 1067 NULL, 0, cdp->debugvar, 0, 1068 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1069 } 1070 } 1071 #endif /* DEBUG */ 1072 1073 SYSCTL_SETUP(sysctl_security_setup, "sysctl security subtree setup") 1074 { 1075 const struct sysctlnode *rnode = NULL; 1076 1077 sysctl_createv(clog, 0, NULL, &rnode, 1078 CTLFLAG_PERMANENT, 1079 CTLTYPE_NODE, "security", NULL, 1080 NULL, 0, NULL, 0, 1081 CTL_SECURITY, CTL_EOL); 1082 1083 sysctl_createv(clog, 0, &rnode, NULL, 1084 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1085 CTLTYPE_INT, "curtain", 1086 SYSCTL_DESCR("Curtain information about objects" 1087 " to users not owning them."), 1088 NULL, 0, &security_curtain, 0, 1089 CTL_CREATE, CTL_EOL); 1090 } 1091 1092 /* 1093 * ******************************************************************** 1094 * section 2: private node-specific helper routines. 1095 * ******************************************************************** 1096 */ 1097 1098 #ifdef DIAGNOSTIC 1099 static int 1100 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1101 { 1102 int newtrig, error; 1103 struct sysctlnode node; 1104 1105 newtrig = 0; 1106 node = *rnode; 1107 node.sysctl_data = &newtrig; 1108 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1109 if (error || newp == NULL) 1110 return (error); 1111 1112 if (newtrig != 0) 1113 panic("Panic triggered"); 1114 1115 return (error); 1116 } 1117 #endif 1118 1119 /* 1120 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1121 * new value is lower than desiredvnodes and then calls reinit 1122 * routines that needs to adjust to the new value. 1123 */ 1124 static int 1125 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1126 { 1127 int error, new_vnodes, old_vnodes; 1128 struct sysctlnode node; 1129 1130 new_vnodes = desiredvnodes; 1131 node = *rnode; 1132 node.sysctl_data = &new_vnodes; 1133 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1134 if (error || newp == NULL) 1135 return (error); 1136 1137 old_vnodes = desiredvnodes; 1138 desiredvnodes = new_vnodes; 1139 if (new_vnodes < old_vnodes) { 1140 error = vfs_drainvnodes(new_vnodes, l); 1141 if (error) { 1142 desiredvnodes = old_vnodes; 1143 return (error); 1144 } 1145 } 1146 vfs_reinit(); 1147 nchreinit(); 1148 1149 return (0); 1150 } 1151 1152 /* 1153 * sysctl helper routine for rtc_offset - set time after changes 1154 */ 1155 static int 1156 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1157 { 1158 struct timespec ts, delta; 1159 int error, new_rtc_offset; 1160 struct sysctlnode node; 1161 1162 new_rtc_offset = rtc_offset; 1163 node = *rnode; 1164 node.sysctl_data = &new_rtc_offset; 1165 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1166 if (error || newp == NULL) 1167 return (error); 1168 1169 if (securelevel > 0) 1170 return (EPERM); 1171 if (rtc_offset == new_rtc_offset) 1172 return (0); 1173 1174 /* if we change the offset, adjust the time */ 1175 nanotime(&ts); 1176 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1177 delta.tv_nsec = 0; 1178 timespecadd(&ts, &delta, &ts); 1179 rtc_offset = new_rtc_offset; 1180 settime(l->l_proc, &ts); 1181 1182 return (0); 1183 } 1184 1185 /* 1186 * sysctl helper routine for kern.maxproc. ensures that the new 1187 * values are not too low or too high. 1188 */ 1189 static int 1190 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1191 { 1192 int error, nmaxproc; 1193 struct sysctlnode node; 1194 1195 nmaxproc = maxproc; 1196 node = *rnode; 1197 node.sysctl_data = &nmaxproc; 1198 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1199 if (error || newp == NULL) 1200 return (error); 1201 1202 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1203 return (EINVAL); 1204 #ifdef __HAVE_CPU_MAXPROC 1205 if (nmaxproc > cpu_maxproc()) 1206 return (EINVAL); 1207 #endif 1208 maxproc = nmaxproc; 1209 1210 return (0); 1211 } 1212 1213 /* 1214 * sysctl helper function for kern.hostid. the hostid is a long, but 1215 * we export it as an int, so we need to give it a little help. 1216 */ 1217 static int 1218 sysctl_kern_hostid(SYSCTLFN_ARGS) 1219 { 1220 int error, inthostid; 1221 struct sysctlnode node; 1222 1223 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1224 node = *rnode; 1225 node.sysctl_data = &inthostid; 1226 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1227 if (error || newp == NULL) 1228 return (error); 1229 1230 hostid = (unsigned)inthostid; 1231 1232 return (0); 1233 } 1234 1235 /* 1236 * sysctl helper function for kern.hostname and kern.domainnname. 1237 * resets the relevant recorded length when the underlying name is 1238 * changed. 1239 */ 1240 static int 1241 sysctl_setlen(SYSCTLFN_ARGS) 1242 { 1243 int error; 1244 1245 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1246 if (error || newp == NULL) 1247 return (error); 1248 1249 switch (rnode->sysctl_num) { 1250 case KERN_HOSTNAME: 1251 hostnamelen = strlen((const char*)rnode->sysctl_data); 1252 break; 1253 case KERN_DOMAINNAME: 1254 domainnamelen = strlen((const char*)rnode->sysctl_data); 1255 break; 1256 } 1257 1258 return (0); 1259 } 1260 1261 /* 1262 * sysctl helper routine for kern.clockrate. assembles a struct on 1263 * the fly to be returned to the caller. 1264 */ 1265 static int 1266 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1267 { 1268 struct clockinfo clkinfo; 1269 struct sysctlnode node; 1270 1271 clkinfo.tick = tick; 1272 clkinfo.tickadj = tickadj; 1273 clkinfo.hz = hz; 1274 clkinfo.profhz = profhz; 1275 clkinfo.stathz = stathz ? stathz : hz; 1276 1277 node = *rnode; 1278 node.sysctl_data = &clkinfo; 1279 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1280 } 1281 1282 1283 /* 1284 * sysctl helper routine for kern.file pseudo-subtree. 1285 */ 1286 static int 1287 sysctl_kern_file(SYSCTLFN_ARGS) 1288 { 1289 int error; 1290 size_t buflen; 1291 struct file *fp; 1292 char *start, *where; 1293 1294 start = where = oldp; 1295 buflen = *oldlenp; 1296 if (where == NULL) { 1297 /* 1298 * overestimate by 10 files 1299 */ 1300 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1301 return (0); 1302 } 1303 1304 /* 1305 * first copyout filehead 1306 */ 1307 if (buflen < sizeof(filehead)) { 1308 *oldlenp = 0; 1309 return (0); 1310 } 1311 error = copyout(&filehead, where, sizeof(filehead)); 1312 if (error) 1313 return (error); 1314 buflen -= sizeof(filehead); 1315 where += sizeof(filehead); 1316 1317 /* 1318 * followed by an array of file structures 1319 */ 1320 LIST_FOREACH(fp, &filehead, f_list) { 1321 if (CURTAIN(kauth_cred_geteuid(l->l_proc->p_cred), 1322 kauth_cred_geteuid(fp->f_cred))) 1323 continue; 1324 if (buflen < sizeof(struct file)) { 1325 *oldlenp = where - start; 1326 return (ENOMEM); 1327 } 1328 error = copyout(fp, where, sizeof(struct file)); 1329 if (error) 1330 return (error); 1331 buflen -= sizeof(struct file); 1332 where += sizeof(struct file); 1333 } 1334 *oldlenp = where - start; 1335 return (0); 1336 } 1337 1338 /* 1339 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1340 * asserts that the assigned value is in the correct range. 1341 */ 1342 static int 1343 sysctl_kern_autonice(SYSCTLFN_ARGS) 1344 { 1345 int error, t = 0; 1346 struct sysctlnode node; 1347 1348 node = *rnode; 1349 t = *(int*)node.sysctl_data; 1350 node.sysctl_data = &t; 1351 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1352 if (error || newp == NULL) 1353 return (error); 1354 1355 switch (node.sysctl_num) { 1356 case KERN_AUTONICETIME: 1357 if (t >= 0) 1358 autonicetime = t; 1359 break; 1360 case KERN_AUTONICEVAL: 1361 if (t < PRIO_MIN) 1362 t = PRIO_MIN; 1363 else if (t > PRIO_MAX) 1364 t = PRIO_MAX; 1365 autoniceval = t; 1366 break; 1367 } 1368 1369 return (0); 1370 } 1371 1372 /* 1373 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1374 * former it merely checks the message buffer is set up. for the latter, 1375 * it also copies out the data if necessary. 1376 */ 1377 static int 1378 sysctl_msgbuf(SYSCTLFN_ARGS) 1379 { 1380 char *where = oldp; 1381 size_t len, maxlen; 1382 long beg, end; 1383 int error; 1384 1385 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1386 msgbufenabled = 0; 1387 return (ENXIO); 1388 } 1389 1390 switch (rnode->sysctl_num) { 1391 case KERN_MSGBUFSIZE: { 1392 struct sysctlnode node = *rnode; 1393 int msg_bufs = (int)msgbufp->msg_bufs; 1394 node.sysctl_data = &msg_bufs; 1395 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1396 } 1397 case KERN_MSGBUF: 1398 break; 1399 default: 1400 return (EOPNOTSUPP); 1401 } 1402 1403 if (newp != NULL) 1404 return (EPERM); 1405 1406 if (oldp == NULL) { 1407 /* always return full buffer size */ 1408 *oldlenp = msgbufp->msg_bufs; 1409 return (0); 1410 } 1411 1412 error = 0; 1413 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1414 1415 /* 1416 * First, copy from the write pointer to the end of 1417 * message buffer. 1418 */ 1419 beg = msgbufp->msg_bufx; 1420 end = msgbufp->msg_bufs; 1421 while (maxlen > 0) { 1422 len = MIN(end - beg, maxlen); 1423 if (len == 0) 1424 break; 1425 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1426 if (error) 1427 break; 1428 where += len; 1429 maxlen -= len; 1430 1431 /* 1432 * ... then, copy from the beginning of message buffer to 1433 * the write pointer. 1434 */ 1435 beg = 0; 1436 end = msgbufp->msg_bufx; 1437 } 1438 1439 return (error); 1440 } 1441 1442 /* 1443 * sysctl helper routine for kern.defcorename. in the case of a new 1444 * string being assigned, check that it's not a zero-length string. 1445 * (XXX the check in -current doesn't work, but do we really care?) 1446 */ 1447 static int 1448 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1449 { 1450 int error; 1451 char *newcorename; 1452 struct sysctlnode node; 1453 1454 newcorename = PNBUF_GET(); 1455 node = *rnode; 1456 node.sysctl_data = &newcorename[0]; 1457 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1458 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1459 if (error || newp == NULL) { 1460 goto done; 1461 } 1462 1463 /* 1464 * when sysctl_lookup() deals with a string, it's guaranteed 1465 * to come back nul terminated. so there. :) 1466 */ 1467 if (strlen(newcorename) == 0) { 1468 error = EINVAL; 1469 } else { 1470 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1471 error = 0; 1472 } 1473 done: 1474 PNBUF_PUT(newcorename); 1475 return error; 1476 } 1477 1478 /* 1479 * sysctl helper routine for kern.cp_time node. adds up cpu time 1480 * across all cpus. 1481 */ 1482 static int 1483 sysctl_kern_cptime(SYSCTLFN_ARGS) 1484 { 1485 struct sysctlnode node = *rnode; 1486 1487 #ifndef MULTIPROCESSOR 1488 1489 if (namelen == 1) { 1490 if (name[0] != 0) 1491 return (ENOENT); 1492 /* 1493 * you're allowed to ask for the zero'th processor 1494 */ 1495 name++; 1496 namelen--; 1497 } 1498 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1499 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1500 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1501 1502 #else /* MULTIPROCESSOR */ 1503 1504 uint64_t *cp_time = NULL; 1505 int error, n = sysctl_ncpus(), i; 1506 struct cpu_info *ci; 1507 CPU_INFO_ITERATOR cii; 1508 1509 /* 1510 * if you specifically pass a buffer that is the size of the 1511 * sum, or if you are probing for the size, you get the "sum" 1512 * of cp_time (and the size thereof) across all processors. 1513 * 1514 * alternately, you can pass an additional mib number and get 1515 * cp_time for that particular processor. 1516 */ 1517 switch (namelen) { 1518 case 0: 1519 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1520 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1521 n = -1; /* SUM */ 1522 } 1523 else { 1524 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1525 n = -2; /* ALL */ 1526 } 1527 break; 1528 case 1: 1529 if (name[0] < 0 || name[0] >= n) 1530 return (ENOENT); /* ENOSUCHPROCESSOR */ 1531 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1532 n = name[0]; 1533 /* 1534 * adjust these so that sysctl_lookup() will be happy 1535 */ 1536 name++; 1537 namelen--; 1538 break; 1539 default: 1540 return (EINVAL); 1541 } 1542 1543 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1544 if (cp_time == NULL) 1545 return (ENOMEM); 1546 node.sysctl_data = cp_time; 1547 memset(cp_time, 0, node.sysctl_size); 1548 1549 for (CPU_INFO_FOREACH(cii, ci)) { 1550 if (n <= 0) 1551 for (i = 0; i < CPUSTATES; i++) 1552 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1553 /* 1554 * if a specific processor was requested and we just 1555 * did it, we're done here 1556 */ 1557 if (n == 0) 1558 break; 1559 /* 1560 * if doing "all", skip to next cp_time set for next processor 1561 */ 1562 if (n == -2) 1563 cp_time += CPUSTATES; 1564 /* 1565 * if we're doing a specific processor, we're one 1566 * processor closer 1567 */ 1568 if (n > 0) 1569 n--; 1570 } 1571 1572 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1573 free(node.sysctl_data, M_TEMP); 1574 return (error); 1575 1576 #endif /* MULTIPROCESSOR */ 1577 } 1578 1579 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1580 /* 1581 * sysctl helper routine for kern.sysvipc_info subtree. 1582 */ 1583 1584 #define FILL_PERM(src, dst) do { \ 1585 (dst)._key = (src)._key; \ 1586 (dst).uid = (src).uid; \ 1587 (dst).gid = (src).gid; \ 1588 (dst).cuid = (src).cuid; \ 1589 (dst).cgid = (src).cgid; \ 1590 (dst).mode = (src).mode; \ 1591 (dst)._seq = (src)._seq; \ 1592 } while (/*CONSTCOND*/ 0); 1593 #define FILL_MSG(src, dst) do { \ 1594 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1595 (dst).msg_qnum = (src).msg_qnum; \ 1596 (dst).msg_qbytes = (src).msg_qbytes; \ 1597 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1598 (dst).msg_lspid = (src).msg_lspid; \ 1599 (dst).msg_lrpid = (src).msg_lrpid; \ 1600 (dst).msg_stime = (src).msg_stime; \ 1601 (dst).msg_rtime = (src).msg_rtime; \ 1602 (dst).msg_ctime = (src).msg_ctime; \ 1603 } while (/*CONSTCOND*/ 0) 1604 #define FILL_SEM(src, dst) do { \ 1605 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1606 (dst).sem_nsems = (src).sem_nsems; \ 1607 (dst).sem_otime = (src).sem_otime; \ 1608 (dst).sem_ctime = (src).sem_ctime; \ 1609 } while (/*CONSTCOND*/ 0) 1610 #define FILL_SHM(src, dst) do { \ 1611 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1612 (dst).shm_segsz = (src).shm_segsz; \ 1613 (dst).shm_lpid = (src).shm_lpid; \ 1614 (dst).shm_cpid = (src).shm_cpid; \ 1615 (dst).shm_atime = (src).shm_atime; \ 1616 (dst).shm_dtime = (src).shm_dtime; \ 1617 (dst).shm_ctime = (src).shm_ctime; \ 1618 (dst).shm_nattch = (src).shm_nattch; \ 1619 } while (/*CONSTCOND*/ 0) 1620 1621 static int 1622 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1623 { 1624 void *where = oldp; 1625 size_t *sizep = oldlenp; 1626 #ifdef SYSVMSG 1627 struct msg_sysctl_info *msgsi = NULL; 1628 #endif 1629 #ifdef SYSVSEM 1630 struct sem_sysctl_info *semsi = NULL; 1631 #endif 1632 #ifdef SYSVSHM 1633 struct shm_sysctl_info *shmsi = NULL; 1634 #endif 1635 size_t infosize, dssize, tsize, buflen; 1636 void *bf = NULL; 1637 char *start; 1638 int32_t nds; 1639 int i, error, ret; 1640 1641 if (namelen != 1) 1642 return (EINVAL); 1643 1644 start = where; 1645 buflen = *sizep; 1646 1647 switch (*name) { 1648 case KERN_SYSVIPC_MSG_INFO: 1649 #ifdef SYSVMSG 1650 infosize = sizeof(msgsi->msginfo); 1651 nds = msginfo.msgmni; 1652 dssize = sizeof(msgsi->msgids[0]); 1653 break; 1654 #else 1655 return (EINVAL); 1656 #endif 1657 case KERN_SYSVIPC_SEM_INFO: 1658 #ifdef SYSVSEM 1659 infosize = sizeof(semsi->seminfo); 1660 nds = seminfo.semmni; 1661 dssize = sizeof(semsi->semids[0]); 1662 break; 1663 #else 1664 return (EINVAL); 1665 #endif 1666 case KERN_SYSVIPC_SHM_INFO: 1667 #ifdef SYSVSHM 1668 infosize = sizeof(shmsi->shminfo); 1669 nds = shminfo.shmmni; 1670 dssize = sizeof(shmsi->shmids[0]); 1671 break; 1672 #else 1673 return (EINVAL); 1674 #endif 1675 default: 1676 return (EINVAL); 1677 } 1678 /* 1679 * Round infosize to 64 bit boundary if requesting more than just 1680 * the info structure or getting the total data size. 1681 */ 1682 if (where == NULL || *sizep > infosize) 1683 infosize = ((infosize + 7) / 8) * 8; 1684 tsize = infosize + nds * dssize; 1685 1686 /* Return just the total size required. */ 1687 if (where == NULL) { 1688 *sizep = tsize; 1689 return (0); 1690 } 1691 1692 /* Not enough room for even the info struct. */ 1693 if (buflen < infosize) { 1694 *sizep = 0; 1695 return (ENOMEM); 1696 } 1697 bf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1698 memset(bf, 0, min(tsize, buflen)); 1699 1700 switch (*name) { 1701 #ifdef SYSVMSG 1702 case KERN_SYSVIPC_MSG_INFO: 1703 msgsi = (struct msg_sysctl_info *)bf; 1704 msgsi->msginfo = msginfo; 1705 break; 1706 #endif 1707 #ifdef SYSVSEM 1708 case KERN_SYSVIPC_SEM_INFO: 1709 semsi = (struct sem_sysctl_info *)bf; 1710 semsi->seminfo = seminfo; 1711 break; 1712 #endif 1713 #ifdef SYSVSHM 1714 case KERN_SYSVIPC_SHM_INFO: 1715 shmsi = (struct shm_sysctl_info *)bf; 1716 shmsi->shminfo = shminfo; 1717 break; 1718 #endif 1719 } 1720 buflen -= infosize; 1721 1722 ret = 0; 1723 if (buflen > 0) { 1724 /* Fill in the IPC data structures. */ 1725 for (i = 0; i < nds; i++) { 1726 if (buflen < dssize) { 1727 ret = ENOMEM; 1728 break; 1729 } 1730 switch (*name) { 1731 #ifdef SYSVMSG 1732 case KERN_SYSVIPC_MSG_INFO: 1733 FILL_MSG(msqids[i], msgsi->msgids[i]); 1734 break; 1735 #endif 1736 #ifdef SYSVSEM 1737 case KERN_SYSVIPC_SEM_INFO: 1738 FILL_SEM(sema[i], semsi->semids[i]); 1739 break; 1740 #endif 1741 #ifdef SYSVSHM 1742 case KERN_SYSVIPC_SHM_INFO: 1743 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1744 break; 1745 #endif 1746 } 1747 buflen -= dssize; 1748 } 1749 } 1750 *sizep -= buflen; 1751 error = copyout(bf, start, *sizep); 1752 /* If copyout succeeded, use return code set earlier. */ 1753 if (error == 0) 1754 error = ret; 1755 if (bf) 1756 free(bf, M_TEMP); 1757 return (error); 1758 } 1759 1760 #undef FILL_PERM 1761 #undef FILL_MSG 1762 #undef FILL_SEM 1763 #undef FILL_SHM 1764 1765 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1766 1767 #if NPTY > 0 1768 /* 1769 * sysctl helper routine for kern.maxptys. ensures that any new value 1770 * is acceptable to the pty subsystem. 1771 */ 1772 static int 1773 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1774 { 1775 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1776 int error, xmax; 1777 struct sysctlnode node; 1778 1779 /* get current value of maxptys */ 1780 xmax = pty_maxptys(0, 0); 1781 1782 node = *rnode; 1783 node.sysctl_data = &xmax; 1784 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1785 if (error || newp == NULL) 1786 return (error); 1787 1788 if (xmax != pty_maxptys(xmax, 1)) 1789 return (EINVAL); 1790 1791 return (0); 1792 } 1793 #endif /* NPTY > 0 */ 1794 1795 /* 1796 * sysctl helper routine for kern.sbmax. basically just ensures that 1797 * any new value is not too small. 1798 */ 1799 static int 1800 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1801 { 1802 int error, new_sbmax; 1803 struct sysctlnode node; 1804 1805 new_sbmax = sb_max; 1806 node = *rnode; 1807 node.sysctl_data = &new_sbmax; 1808 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1809 if (error || newp == NULL) 1810 return (error); 1811 1812 error = sb_max_set(new_sbmax); 1813 1814 return (error); 1815 } 1816 1817 /* 1818 * sysctl helper routine for kern.urandom node. picks a random number 1819 * for you. 1820 */ 1821 static int 1822 sysctl_kern_urnd(SYSCTLFN_ARGS) 1823 { 1824 #if NRND > 0 1825 int v; 1826 1827 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1828 struct sysctlnode node = *rnode; 1829 node.sysctl_data = &v; 1830 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1831 } 1832 else 1833 return (EIO); /*XXX*/ 1834 #else 1835 return (EOPNOTSUPP); 1836 #endif 1837 } 1838 1839 /* 1840 * sysctl helper routine to do kern.lwp.* work. 1841 */ 1842 static int 1843 sysctl_kern_lwp(SYSCTLFN_ARGS) 1844 { 1845 struct kinfo_lwp klwp; 1846 struct proc *p; 1847 struct lwp *l2; 1848 char *where, *dp; 1849 int pid, elem_size, elem_count; 1850 int buflen, needed, error; 1851 1852 if (namelen == 1 && name[0] == CTL_QUERY) 1853 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1854 1855 dp = where = oldp; 1856 buflen = where != NULL ? *oldlenp : 0; 1857 error = needed = 0; 1858 1859 if (newp != NULL || namelen != 3) 1860 return (EINVAL); 1861 pid = name[0]; 1862 elem_size = name[1]; 1863 elem_count = name[2]; 1864 1865 p = pfind(pid); 1866 if (p == NULL) 1867 return (ESRCH); 1868 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1869 if (buflen >= elem_size && elem_count > 0) { 1870 fill_lwp(l2, &klwp); 1871 /* 1872 * Copy out elem_size, but not larger than 1873 * the size of a struct kinfo_proc2. 1874 */ 1875 error = copyout(&klwp, dp, 1876 min(sizeof(klwp), elem_size)); 1877 if (error) 1878 goto cleanup; 1879 dp += elem_size; 1880 buflen -= elem_size; 1881 elem_count--; 1882 } 1883 needed += elem_size; 1884 } 1885 1886 if (where != NULL) { 1887 *oldlenp = dp - where; 1888 if (needed > *oldlenp) 1889 return (ENOMEM); 1890 } else { 1891 needed += KERN_LWPSLOP; 1892 *oldlenp = needed; 1893 } 1894 return (0); 1895 cleanup: 1896 return (error); 1897 } 1898 1899 /* 1900 * sysctl helper routine for kern.forkfsleep node. ensures that the 1901 * given value is not too large or two small, and is at least one 1902 * timer tick if not zero. 1903 */ 1904 static int 1905 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1906 { 1907 /* userland sees value in ms, internally is in ticks */ 1908 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1909 int error, timo, lsleep; 1910 struct sysctlnode node; 1911 1912 lsleep = forkfsleep * 1000 / hz; 1913 node = *rnode; 1914 node.sysctl_data = &lsleep; 1915 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1916 if (error || newp == NULL) 1917 return (error); 1918 1919 /* refuse negative values, and overly 'long time' */ 1920 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1921 return (EINVAL); 1922 1923 timo = mstohz(lsleep); 1924 1925 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1926 if (lsleep != 0 && timo == 0) 1927 forkfsleep = 1; 1928 else 1929 forkfsleep = timo; 1930 1931 return (0); 1932 } 1933 1934 /* 1935 * sysctl helper routine for kern.root_partition 1936 */ 1937 static int 1938 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1939 { 1940 int rootpart = DISKPART(rootdev); 1941 struct sysctlnode node = *rnode; 1942 1943 node.sysctl_data = &rootpart; 1944 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1945 } 1946 1947 /* 1948 * sysctl helper function for kern.drivers 1949 */ 1950 static int 1951 sysctl_kern_drivers(SYSCTLFN_ARGS) 1952 { 1953 int error; 1954 size_t buflen; 1955 struct kinfo_drivers kd; 1956 char *start, *where; 1957 const char *dname; 1958 int i; 1959 extern struct devsw_conv *devsw_conv; 1960 extern int max_devsw_convs; 1961 1962 if (newp != NULL || namelen != 0) 1963 return (EINVAL); 1964 1965 start = where = oldp; 1966 buflen = *oldlenp; 1967 if (where == NULL) { 1968 *oldlenp = max_devsw_convs * sizeof kd; 1969 return 0; 1970 } 1971 1972 /* 1973 * An array of kinfo_drivers structures 1974 */ 1975 error = 0; 1976 for (i = 0; i < max_devsw_convs; i++) { 1977 dname = devsw_conv[i].d_name; 1978 if (dname == NULL) 1979 continue; 1980 if (buflen < sizeof kd) { 1981 error = ENOMEM; 1982 break; 1983 } 1984 memset(&kd, 0, sizeof(kd)); 1985 kd.d_bmajor = devsw_conv[i].d_bmajor; 1986 kd.d_cmajor = devsw_conv[i].d_cmajor; 1987 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1988 error = copyout(&kd, where, sizeof kd); 1989 if (error != 0) 1990 break; 1991 buflen -= sizeof kd; 1992 where += sizeof kd; 1993 } 1994 *oldlenp = where - start; 1995 return error; 1996 } 1997 1998 /* 1999 * sysctl helper function for kern.file2 2000 */ 2001 static int 2002 sysctl_kern_file2(SYSCTLFN_ARGS) 2003 { 2004 struct proc *p; 2005 struct file *fp; 2006 struct filedesc *fd; 2007 struct kinfo_file kf; 2008 char *dp; 2009 u_int i, op; 2010 size_t len, needed, elem_size, out_size; 2011 int error, arg, elem_count; 2012 2013 if (namelen == 1 && name[0] == CTL_QUERY) 2014 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2015 2016 if (namelen != 4) 2017 return (EINVAL); 2018 2019 error = 0; 2020 dp = oldp; 2021 len = (oldp != NULL) ? *oldlenp : 0; 2022 op = name[0]; 2023 arg = name[1]; 2024 elem_size = name[2]; 2025 elem_count = name[3]; 2026 out_size = MIN(sizeof(kf), elem_size); 2027 needed = 0; 2028 2029 if (elem_size < 1 || elem_count < 0) 2030 return (EINVAL); 2031 2032 switch (op) { 2033 case KERN_FILE_BYFILE: 2034 /* 2035 * doesn't use arg so it must be zero 2036 */ 2037 if (arg != 0) 2038 return (EINVAL); 2039 LIST_FOREACH(fp, &filehead, f_list) { 2040 if (CURTAIN(kauth_cred_geteuid(l->l_proc->p_cred), 2041 kauth_cred_geteuid(fp->f_cred))) 2042 continue; 2043 if (len >= elem_size && elem_count > 0) { 2044 fill_file(&kf, fp, NULL, 0); 2045 error = copyout(&kf, dp, out_size); 2046 if (error) 2047 break; 2048 dp += elem_size; 2049 len -= elem_size; 2050 } 2051 if (elem_count > 0) { 2052 needed += elem_size; 2053 if (elem_count != INT_MAX) 2054 elem_count--; 2055 } 2056 } 2057 break; 2058 case KERN_FILE_BYPID: 2059 if (arg < -1) 2060 /* -1 means all processes */ 2061 return (EINVAL); 2062 proclist_lock_read(); 2063 PROCLIST_FOREACH(p, &allproc) { 2064 if (p->p_stat == SIDL) 2065 /* skip embryonic processes */ 2066 continue; 2067 if (kauth_authorize_process(l->l_proc->p_cred, 2068 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2069 continue; 2070 if (arg > 0 && p->p_pid != arg) 2071 /* pick only the one we want */ 2072 /* XXX want 0 to mean "kernel files" */ 2073 continue; 2074 fd = p->p_fd; 2075 for (i = 0; i < fd->fd_nfiles; i++) { 2076 fp = fd->fd_ofiles[i]; 2077 if (fp == NULL || !FILE_IS_USABLE(fp)) 2078 continue; 2079 if (len >= elem_size && elem_count > 0) { 2080 fill_file(&kf, fd->fd_ofiles[i], 2081 p, i); 2082 error = copyout(&kf, dp, out_size); 2083 if (error) 2084 break; 2085 dp += elem_size; 2086 len -= elem_size; 2087 } 2088 if (elem_count > 0) { 2089 needed += elem_size; 2090 if (elem_count != INT_MAX) 2091 elem_count--; 2092 } 2093 } 2094 } 2095 proclist_unlock_read(); 2096 break; 2097 default: 2098 return (EINVAL); 2099 } 2100 2101 if (oldp == NULL) 2102 needed += KERN_FILESLOP * elem_size; 2103 *oldlenp = needed; 2104 2105 return (error); 2106 } 2107 2108 static void 2109 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2110 { 2111 2112 memset(kp, 0, sizeof(*kp)); 2113 2114 kp->ki_fileaddr = PTRTOUINT64(fp); 2115 kp->ki_flag = fp->f_flag; 2116 kp->ki_iflags = fp->f_iflags; 2117 kp->ki_ftype = fp->f_type; 2118 kp->ki_count = fp->f_count; 2119 kp->ki_msgcount = fp->f_msgcount; 2120 kp->ki_usecount = fp->f_usecount; 2121 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2122 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2123 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2124 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2125 kp->ki_foffset = fp->f_offset; 2126 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2127 2128 /* vnode information to glue this file to something */ 2129 if (fp->f_type == DTYPE_VNODE) { 2130 struct vnode *vp = (struct vnode *)fp->f_data; 2131 2132 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2133 kp->ki_vsize = vp->v_size; 2134 kp->ki_vtype = vp->v_type; 2135 kp->ki_vtag = vp->v_tag; 2136 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2137 } 2138 2139 /* process information when retrieved via KERN_FILE_BYPID */ 2140 if (p) { 2141 kp->ki_pid = p->p_pid; 2142 kp->ki_fd = i; 2143 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2144 } 2145 } 2146 2147 static int 2148 sysctl_doeproc(SYSCTLFN_ARGS) 2149 { 2150 struct eproc *eproc; 2151 struct kinfo_proc2 *kproc2; 2152 struct kinfo_proc *dp; 2153 struct proc *p; 2154 const struct proclist_desc *pd; 2155 char *where, *dp2; 2156 int type, op, arg; 2157 u_int elem_size, elem_count; 2158 size_t buflen, needed; 2159 int error; 2160 2161 if (namelen == 1 && name[0] == CTL_QUERY) 2162 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2163 2164 dp = oldp; 2165 dp2 = where = oldp; 2166 buflen = where != NULL ? *oldlenp : 0; 2167 error = 0; 2168 needed = 0; 2169 type = rnode->sysctl_num; 2170 2171 if (type == KERN_PROC) { 2172 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2173 return (EINVAL); 2174 op = name[0]; 2175 if (op != KERN_PROC_ALL) 2176 arg = name[1]; 2177 else 2178 arg = 0; /* Quell compiler warning */ 2179 elem_size = elem_count = 0; /* Ditto */ 2180 } else { 2181 if (namelen != 4) 2182 return (EINVAL); 2183 op = name[0]; 2184 arg = name[1]; 2185 elem_size = name[2]; 2186 elem_count = name[3]; 2187 } 2188 2189 if (type == KERN_PROC) { 2190 eproc = malloc(sizeof(*eproc), M_TEMP, M_WAITOK); 2191 kproc2 = NULL; 2192 } else { 2193 eproc = NULL; 2194 kproc2 = malloc(sizeof(*kproc2), M_TEMP, M_WAITOK); 2195 } 2196 proclist_lock_read(); 2197 2198 pd = proclists; 2199 again: 2200 PROCLIST_FOREACH(p, pd->pd_list) { 2201 /* 2202 * Skip embryonic processes. 2203 */ 2204 if (p->p_stat == SIDL) 2205 continue; 2206 2207 if (kauth_authorize_process(l->l_proc->p_cred, 2208 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2209 continue; 2210 2211 /* 2212 * TODO - make more efficient (see notes below). 2213 * do by session. 2214 */ 2215 switch (op) { 2216 2217 case KERN_PROC_PID: 2218 /* could do this with just a lookup */ 2219 if (p->p_pid != (pid_t)arg) 2220 continue; 2221 break; 2222 2223 case KERN_PROC_PGRP: 2224 /* could do this by traversing pgrp */ 2225 if (p->p_pgrp->pg_id != (pid_t)arg) 2226 continue; 2227 break; 2228 2229 case KERN_PROC_SESSION: 2230 if (p->p_session->s_sid != (pid_t)arg) 2231 continue; 2232 break; 2233 2234 case KERN_PROC_TTY: 2235 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2236 if ((p->p_flag & P_CONTROLT) == 0 || 2237 p->p_session->s_ttyp == NULL || 2238 p->p_session->s_ttyvp != NULL) 2239 continue; 2240 } else if ((p->p_flag & P_CONTROLT) == 0 || 2241 p->p_session->s_ttyp == NULL) { 2242 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2243 continue; 2244 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2245 continue; 2246 break; 2247 2248 case KERN_PROC_UID: 2249 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2250 continue; 2251 break; 2252 2253 case KERN_PROC_RUID: 2254 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2255 continue; 2256 break; 2257 2258 case KERN_PROC_GID: 2259 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2260 continue; 2261 break; 2262 2263 case KERN_PROC_RGID: 2264 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2265 continue; 2266 break; 2267 2268 case KERN_PROC_ALL: 2269 /* allow everything */ 2270 break; 2271 2272 default: 2273 error = EINVAL; 2274 goto cleanup; 2275 } 2276 if (type == KERN_PROC) { 2277 if (buflen >= sizeof(struct kinfo_proc)) { 2278 fill_eproc(p, eproc); 2279 error = copyout(p, &dp->kp_proc, 2280 sizeof(struct proc)); 2281 if (error) 2282 goto cleanup; 2283 error = copyout(eproc, &dp->kp_eproc, 2284 sizeof(*eproc)); 2285 if (error) 2286 goto cleanup; 2287 dp++; 2288 buflen -= sizeof(struct kinfo_proc); 2289 } 2290 needed += sizeof(struct kinfo_proc); 2291 } else { /* KERN_PROC2 */ 2292 if (buflen >= elem_size && elem_count > 0) { 2293 fill_kproc2(p, kproc2); 2294 /* 2295 * Copy out elem_size, but not larger than 2296 * the size of a struct kinfo_proc2. 2297 */ 2298 error = copyout(kproc2, dp2, 2299 min(sizeof(*kproc2), elem_size)); 2300 if (error) 2301 goto cleanup; 2302 dp2 += elem_size; 2303 buflen -= elem_size; 2304 elem_count--; 2305 } 2306 needed += elem_size; 2307 } 2308 } 2309 pd++; 2310 if (pd->pd_list != NULL) 2311 goto again; 2312 proclist_unlock_read(); 2313 2314 if (where != NULL) { 2315 if (type == KERN_PROC) 2316 *oldlenp = (char *)dp - where; 2317 else 2318 *oldlenp = dp2 - where; 2319 if (needed > *oldlenp) { 2320 error = ENOMEM; 2321 goto out; 2322 } 2323 } else { 2324 needed += KERN_PROCSLOP; 2325 *oldlenp = needed; 2326 } 2327 if (kproc2) 2328 free(kproc2, M_TEMP); 2329 if (eproc) 2330 free(eproc, M_TEMP); 2331 return 0; 2332 cleanup: 2333 proclist_unlock_read(); 2334 out: 2335 if (kproc2) 2336 free(kproc2, M_TEMP); 2337 if (eproc) 2338 free(eproc, M_TEMP); 2339 return error; 2340 } 2341 2342 /* 2343 * sysctl helper routine for kern.proc_args pseudo-subtree. 2344 */ 2345 static int 2346 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2347 { 2348 struct ps_strings pss; 2349 struct proc *p, *up = l->l_proc; 2350 size_t len, upper_bound, xlen, i; 2351 struct uio auio; 2352 struct iovec aiov; 2353 vaddr_t argv; 2354 pid_t pid; 2355 int nargv, type, error; 2356 char *arg; 2357 char *tmp; 2358 struct vmspace *vmspace; 2359 vaddr_t psstr_addr; 2360 vaddr_t offsetn; 2361 vaddr_t offsetv; 2362 2363 if (namelen == 1 && name[0] == CTL_QUERY) 2364 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2365 2366 if (newp != NULL || namelen != 2) 2367 return (EINVAL); 2368 pid = name[0]; 2369 type = name[1]; 2370 2371 switch (type) { 2372 case KERN_PROC_ARGV: 2373 case KERN_PROC_NARGV: 2374 case KERN_PROC_ENV: 2375 case KERN_PROC_NENV: 2376 /* ok */ 2377 break; 2378 default: 2379 return (EINVAL); 2380 } 2381 2382 proclist_lock_read(); 2383 2384 /* check pid */ 2385 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2386 error = EINVAL; 2387 goto out_locked; 2388 } 2389 2390 error = kauth_authorize_process(l->l_proc->p_cred, 2391 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2392 if (error) { 2393 goto out_locked; 2394 } 2395 2396 /* only root or same user change look at the environment */ 2397 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2398 if (kauth_cred_geteuid(up->p_cred) != 0) { 2399 if (kauth_cred_getuid(up->p_cred) != kauth_cred_getuid(p->p_cred) || 2400 kauth_cred_getuid(up->p_cred) != kauth_cred_getsvuid(p->p_cred)) { 2401 error = EPERM; 2402 goto out_locked; 2403 } 2404 } 2405 } 2406 2407 if (oldp == NULL) { 2408 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2409 *oldlenp = sizeof (int); 2410 else 2411 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2412 error = 0; 2413 goto out_locked; 2414 } 2415 2416 /* 2417 * Zombies don't have a stack, so we can't read their psstrings. 2418 * System processes also don't have a user stack. 2419 */ 2420 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) { 2421 error = EINVAL; 2422 goto out_locked; 2423 } 2424 2425 /* 2426 * Lock the process down in memory. 2427 */ 2428 /* XXXCDC: how should locking work here? */ 2429 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2430 error = EFAULT; 2431 goto out_locked; 2432 } 2433 2434 psstr_addr = (vaddr_t)p->p_psstr; 2435 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2436 offsetn = p->p_psnargv; 2437 offsetv = p->p_psargv; 2438 } else { 2439 offsetn = p->p_psnenv; 2440 offsetv = p->p_psenv; 2441 } 2442 vmspace = p->p_vmspace; 2443 vmspace->vm_refcnt++; /* XXX */ 2444 2445 proclist_unlock_read(); 2446 2447 /* 2448 * Allocate a temporary buffer to hold the arguments. 2449 */ 2450 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2451 2452 /* 2453 * Read in the ps_strings structure. 2454 */ 2455 aiov.iov_base = &pss; 2456 aiov.iov_len = sizeof(pss); 2457 auio.uio_iov = &aiov; 2458 auio.uio_iovcnt = 1; 2459 auio.uio_offset = psstr_addr; 2460 auio.uio_resid = sizeof(pss); 2461 auio.uio_rw = UIO_READ; 2462 UIO_SETUP_SYSSPACE(&auio); 2463 error = uvm_io(&vmspace->vm_map, &auio); 2464 if (error) 2465 goto done; 2466 2467 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2468 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2469 error = copyout(&nargv, oldp, sizeof(nargv)); 2470 *oldlenp = sizeof(nargv); 2471 goto done; 2472 } 2473 /* 2474 * Now read the address of the argument vector. 2475 */ 2476 switch (type) { 2477 case KERN_PROC_ARGV: 2478 /* XXX compat32 stuff here */ 2479 /* FALLTHROUGH */ 2480 case KERN_PROC_ENV: 2481 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2482 break; 2483 default: 2484 return (EINVAL); 2485 } 2486 auio.uio_offset = (off_t)(unsigned long)tmp; 2487 aiov.iov_base = &argv; 2488 aiov.iov_len = sizeof(argv); 2489 auio.uio_iov = &aiov; 2490 auio.uio_iovcnt = 1; 2491 auio.uio_resid = sizeof(argv); 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 /* 2499 * Now copy in the actual argument vector, one page at a time, 2500 * since we don't know how long the vector is (though, we do 2501 * know how many NUL-terminated strings are in the vector). 2502 */ 2503 len = 0; 2504 upper_bound = *oldlenp; 2505 for (; nargv != 0 && len < upper_bound; len += xlen) { 2506 aiov.iov_base = arg; 2507 aiov.iov_len = PAGE_SIZE; 2508 auio.uio_iov = &aiov; 2509 auio.uio_iovcnt = 1; 2510 auio.uio_offset = argv + len; 2511 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2512 auio.uio_resid = xlen; 2513 auio.uio_rw = UIO_READ; 2514 UIO_SETUP_SYSSPACE(&auio); 2515 error = uvm_io(&vmspace->vm_map, &auio); 2516 if (error) 2517 goto done; 2518 2519 for (i = 0; i < xlen && nargv != 0; i++) { 2520 if (arg[i] == '\0') 2521 nargv--; /* one full string */ 2522 } 2523 2524 /* 2525 * Make sure we don't copyout past the end of the user's 2526 * buffer. 2527 */ 2528 if (len + i > upper_bound) 2529 i = upper_bound - len; 2530 2531 error = copyout(arg, (char *)oldp + len, i); 2532 if (error) 2533 break; 2534 2535 if (nargv == 0) { 2536 len += i; 2537 break; 2538 } 2539 } 2540 *oldlenp = len; 2541 2542 done: 2543 uvmspace_free(vmspace); 2544 2545 free(arg, M_TEMP); 2546 return error; 2547 2548 out_locked: 2549 proclist_unlock_read(); 2550 return error; 2551 } 2552 2553 /* 2554 * Sysctl helper routine for Verified Exec. 2555 */ 2556 #ifdef VERIFIED_EXEC 2557 static int 2558 sysctl_kern_veriexec(SYSCTLFN_ARGS) 2559 { 2560 int newval, error; 2561 int *var = NULL, raise_only = 0; 2562 struct sysctlnode node; 2563 2564 node = *rnode; 2565 2566 switch (rnode->sysctl_num) { 2567 case VERIEXEC_STRICT: 2568 raise_only = 1; 2569 var = &veriexec_strict; 2570 break; 2571 case VERIEXEC_ALGORITHMS: 2572 node.sysctl_data = veriexec_fp_names; 2573 node.sysctl_size = strlen(veriexec_fp_names) + 1; 2574 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2575 default: 2576 return (EINVAL); 2577 } 2578 2579 newval = *var; 2580 2581 node.sysctl_data = &newval; 2582 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2583 if (error || newp == NULL) { 2584 return (error); 2585 } 2586 2587 if (raise_only && (newval < *var)) 2588 return (EPERM); 2589 2590 *var = newval; 2591 2592 return (error); 2593 } 2594 #endif /* VERIFIED_EXEC */ 2595 2596 static int 2597 sysctl_security_setidcore(SYSCTLFN_ARGS) 2598 { 2599 int newsize, error; 2600 struct sysctlnode node; 2601 2602 node = *rnode; 2603 node.sysctl_data = &newsize; 2604 newsize = *(int *)rnode->sysctl_data; 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 *(int *)rnode->sysctl_data = newsize; 2613 2614 return 0; 2615 } 2616 2617 static int 2618 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2619 { 2620 int error; 2621 char *newsetidcorename; 2622 struct sysctlnode node; 2623 2624 newsetidcorename = PNBUF_GET(); 2625 node = *rnode; 2626 node.sysctl_data = newsetidcorename; 2627 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2628 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2629 if (error || newp == NULL) { 2630 goto out; 2631 } 2632 if (securelevel > 0) { 2633 error = EPERM; 2634 goto out; 2635 } 2636 if (strlen(newsetidcorename) == 0) { 2637 error = EINVAL; 2638 goto out; 2639 } 2640 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2641 out: 2642 PNBUF_PUT(newsetidcorename); 2643 return error; 2644 } 2645 2646 /* 2647 * sysctl helper routine for kern.cp_id node. maps cpus to their 2648 * cpuids. 2649 */ 2650 static int 2651 sysctl_kern_cpid(SYSCTLFN_ARGS) 2652 { 2653 struct sysctlnode node = *rnode; 2654 2655 #ifndef MULTIPROCESSOR 2656 uint64_t id; 2657 2658 if (namelen == 1) { 2659 if (name[0] != 0) 2660 return (ENOENT); 2661 /* 2662 * you're allowed to ask for the zero'th processor 2663 */ 2664 name++; 2665 namelen--; 2666 } 2667 node.sysctl_data = &id; 2668 node.sysctl_size = sizeof(id); 2669 id = cpu_number(); 2670 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2671 2672 #else /* MULTIPROCESSOR */ 2673 uint64_t *cp_id = NULL; 2674 int error, n = sysctl_ncpus(); 2675 struct cpu_info *ci; 2676 CPU_INFO_ITERATOR cii; 2677 2678 /* 2679 * here you may either retrieve a single cpu id or the whole 2680 * set. the size you get back when probing depends on what 2681 * you ask for. 2682 */ 2683 switch (namelen) { 2684 case 0: 2685 node.sysctl_size = n * sizeof(uint64_t); 2686 n = -2; /* ALL */ 2687 break; 2688 case 1: 2689 if (name[0] < 0 || name[0] >= n) 2690 return (ENOENT); /* ENOSUCHPROCESSOR */ 2691 node.sysctl_size = sizeof(uint64_t); 2692 n = name[0]; 2693 /* 2694 * adjust these so that sysctl_lookup() will be happy 2695 */ 2696 name++; 2697 namelen--; 2698 break; 2699 default: 2700 return (EINVAL); 2701 } 2702 2703 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2704 if (cp_id == NULL) 2705 return (ENOMEM); 2706 node.sysctl_data = cp_id; 2707 memset(cp_id, 0, node.sysctl_size); 2708 2709 for (CPU_INFO_FOREACH(cii, ci)) { 2710 if (n <= 0) 2711 cp_id[0] = ci->ci_cpuid; 2712 /* 2713 * if a specific processor was requested and we just 2714 * did it, we're done here 2715 */ 2716 if (n == 0) 2717 break; 2718 /* 2719 * if doing "all", skip to next cp_id slot for next processor 2720 */ 2721 if (n == -2) 2722 cp_id++; 2723 /* 2724 * if we're doing a specific processor, we're one 2725 * processor closer 2726 */ 2727 if (n > 0) 2728 n--; 2729 } 2730 2731 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2732 free(node.sysctl_data, M_TEMP); 2733 return (error); 2734 2735 #endif /* MULTIPROCESSOR */ 2736 } 2737 2738 /* 2739 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2740 * calculate on the fly taking into account integer overflow and the 2741 * current wired count. 2742 */ 2743 static int 2744 sysctl_hw_usermem(SYSCTLFN_ARGS) 2745 { 2746 u_int ui; 2747 u_quad_t uq; 2748 struct sysctlnode node; 2749 2750 node = *rnode; 2751 switch (rnode->sysctl_num) { 2752 case HW_USERMEM: 2753 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2754 ui = UINT_MAX; 2755 else 2756 ui *= PAGE_SIZE; 2757 node.sysctl_data = &ui; 2758 break; 2759 case HW_USERMEM64: 2760 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2761 node.sysctl_data = &uq; 2762 break; 2763 default: 2764 return (EINVAL); 2765 } 2766 2767 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2768 } 2769 2770 /* 2771 * sysctl helper routine for kern.cnmagic node. pulls the old value 2772 * out, encoded, and stuffs the new value in for decoding. 2773 */ 2774 static int 2775 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2776 { 2777 char magic[CNS_LEN]; 2778 int error; 2779 struct sysctlnode node; 2780 2781 if (oldp) 2782 cn_get_magic(magic, CNS_LEN); 2783 node = *rnode; 2784 node.sysctl_data = &magic[0]; 2785 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2786 if (error || newp == NULL) 2787 return (error); 2788 2789 return (cn_set_magic(magic)); 2790 } 2791 2792 static int 2793 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2794 { 2795 int ncpu; 2796 struct sysctlnode node; 2797 2798 ncpu = sysctl_ncpus(); 2799 node = *rnode; 2800 node.sysctl_data = &ncpu; 2801 2802 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2803 } 2804 2805 2806 /* 2807 * ******************************************************************** 2808 * section 3: public helper routines that are used for more than one 2809 * node 2810 * ******************************************************************** 2811 */ 2812 2813 /* 2814 * sysctl helper routine for the kern.root_device node and some ports' 2815 * machdep.root_device nodes. 2816 */ 2817 int 2818 sysctl_root_device(SYSCTLFN_ARGS) 2819 { 2820 struct sysctlnode node; 2821 2822 node = *rnode; 2823 node.sysctl_data = root_device->dv_xname; 2824 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2825 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2826 } 2827 2828 /* 2829 * sysctl helper routine for kern.consdev, dependent on the current 2830 * state of the console. also used for machdep.console_device on some 2831 * ports. 2832 */ 2833 int 2834 sysctl_consdev(SYSCTLFN_ARGS) 2835 { 2836 dev_t consdev; 2837 struct sysctlnode node; 2838 2839 if (cn_tab != NULL) 2840 consdev = cn_tab->cn_dev; 2841 else 2842 consdev = NODEV; 2843 node = *rnode; 2844 node.sysctl_data = &consdev; 2845 node.sysctl_size = sizeof(consdev); 2846 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2847 } 2848 2849 /* 2850 * ******************************************************************** 2851 * section 4: support for some helpers 2852 * ******************************************************************** 2853 */ 2854 2855 /* 2856 * Fill in a kinfo_proc2 structure for the specified process. 2857 */ 2858 static void 2859 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2860 { 2861 struct tty *tp; 2862 struct lwp *l; 2863 struct timeval ut, st; 2864 2865 memset(ki, 0, sizeof(*ki)); 2866 2867 ki->p_paddr = PTRTOUINT64(p); 2868 ki->p_fd = PTRTOUINT64(p->p_fd); 2869 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2870 ki->p_stats = PTRTOUINT64(p->p_stats); 2871 ki->p_limit = PTRTOUINT64(p->p_limit); 2872 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2873 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2874 ki->p_sess = PTRTOUINT64(p->p_session); 2875 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2876 ki->p_ru = PTRTOUINT64(p->p_ru); 2877 2878 ki->p_eflag = 0; 2879 ki->p_exitsig = p->p_exitsig; 2880 ki->p_flag = p->p_flag; 2881 2882 ki->p_pid = p->p_pid; 2883 if (p->p_pptr) 2884 ki->p_ppid = p->p_pptr->p_pid; 2885 else 2886 ki->p_ppid = 0; 2887 ki->p_sid = p->p_session->s_sid; 2888 ki->p__pgid = p->p_pgrp->pg_id; 2889 2890 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2891 2892 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2893 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2894 ki->p_gid = kauth_cred_getegid(p->p_cred); 2895 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2896 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2897 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2898 2899 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2900 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2901 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0]))); 2902 2903 ki->p_jobc = p->p_pgrp->pg_jobc; 2904 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2905 ki->p_tdev = tp->t_dev; 2906 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2907 ki->p_tsess = PTRTOUINT64(tp->t_session); 2908 } else { 2909 ki->p_tdev = NODEV; 2910 } 2911 2912 ki->p_estcpu = p->p_estcpu; 2913 ki->p_rtime_sec = p->p_rtime.tv_sec; 2914 ki->p_rtime_usec = p->p_rtime.tv_usec; 2915 ki->p_cpticks = p->p_cpticks; 2916 ki->p_pctcpu = p->p_pctcpu; 2917 2918 ki->p_uticks = p->p_uticks; 2919 ki->p_sticks = p->p_sticks; 2920 ki->p_iticks = p->p_iticks; 2921 2922 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2923 ki->p_traceflag = p->p_traceflag; 2924 2925 2926 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2927 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2928 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2929 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2930 2931 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2932 ki->p_realstat = p->p_stat; 2933 ki->p_nice = p->p_nice; 2934 2935 ki->p_xstat = p->p_xstat; 2936 ki->p_acflag = p->p_acflag; 2937 2938 strncpy(ki->p_comm, p->p_comm, 2939 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2940 2941 strncpy(ki->p_login, p->p_session->s_login, 2942 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2943 2944 ki->p_nlwps = p->p_nlwps; 2945 ki->p_nrlwps = p->p_nrlwps; 2946 ki->p_realflag = p->p_flag; 2947 2948 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2949 ki->p_vm_rssize = 0; 2950 ki->p_vm_tsize = 0; 2951 ki->p_vm_dsize = 0; 2952 ki->p_vm_ssize = 0; 2953 l = NULL; 2954 } else { 2955 struct vmspace *vm = p->p_vmspace; 2956 2957 ki->p_vm_rssize = vm_resident_count(vm); 2958 ki->p_vm_tsize = vm->vm_tsize; 2959 ki->p_vm_dsize = vm->vm_dsize; 2960 ki->p_vm_ssize = vm->vm_ssize; 2961 2962 /* Pick a "representative" LWP */ 2963 l = proc_representative_lwp(p); 2964 ki->p_forw = PTRTOUINT64(l->l_forw); 2965 ki->p_back = PTRTOUINT64(l->l_back); 2966 ki->p_addr = PTRTOUINT64(l->l_addr); 2967 ki->p_stat = l->l_stat; 2968 ki->p_flag |= l->l_flag & P_SHARED; 2969 ki->p_swtime = l->l_swtime; 2970 ki->p_slptime = l->l_slptime; 2971 if (l->l_stat == LSONPROC) { 2972 KDASSERT(l->l_cpu != NULL); 2973 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2974 } else 2975 ki->p_schedflags = 0; 2976 ki->p_holdcnt = l->l_holdcnt; 2977 ki->p_priority = l->l_priority; 2978 ki->p_usrpri = l->l_usrpri; 2979 if (l->l_wmesg) 2980 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2981 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2982 2983 } 2984 2985 if (p->p_session->s_ttyvp) 2986 ki->p_eflag |= EPROC_CTTY; 2987 if (SESS_LEADER(p)) 2988 ki->p_eflag |= EPROC_SLEADER; 2989 2990 /* XXX Is this double check necessary? */ 2991 if (P_ZOMBIE(p)) { 2992 ki->p_uvalid = 0; 2993 } else { 2994 ki->p_uvalid = 1; 2995 2996 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2997 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2998 2999 calcru(p, &ut, &st, 0); 3000 ki->p_uutime_sec = ut.tv_sec; 3001 ki->p_uutime_usec = ut.tv_usec; 3002 ki->p_ustime_sec = st.tv_sec; 3003 ki->p_ustime_usec = st.tv_usec; 3004 3005 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 3006 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 3007 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 3008 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 3009 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 3010 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 3011 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 3012 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 3013 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 3014 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 3015 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 3016 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 3017 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 3018 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 3019 3020 timeradd(&p->p_stats->p_cru.ru_utime, 3021 &p->p_stats->p_cru.ru_stime, &ut); 3022 ki->p_uctime_sec = ut.tv_sec; 3023 ki->p_uctime_usec = ut.tv_usec; 3024 } 3025 #ifdef MULTIPROCESSOR 3026 if (l && l->l_cpu != NULL) 3027 ki->p_cpuid = l->l_cpu->ci_cpuid; 3028 else 3029 #endif 3030 ki->p_cpuid = KI_NOCPU; 3031 } 3032 3033 /* 3034 * Fill in a kinfo_lwp structure for the specified lwp. 3035 */ 3036 static void 3037 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3038 { 3039 3040 kl->l_forw = PTRTOUINT64(l->l_forw); 3041 kl->l_back = PTRTOUINT64(l->l_back); 3042 kl->l_laddr = PTRTOUINT64(l); 3043 kl->l_addr = PTRTOUINT64(l->l_addr); 3044 kl->l_stat = l->l_stat; 3045 kl->l_lid = l->l_lid; 3046 kl->l_flag = l->l_flag; 3047 3048 kl->l_swtime = l->l_swtime; 3049 kl->l_slptime = l->l_slptime; 3050 if (l->l_stat == LSONPROC) { 3051 KDASSERT(l->l_cpu != NULL); 3052 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3053 } else 3054 kl->l_schedflags = 0; 3055 kl->l_holdcnt = l->l_holdcnt; 3056 kl->l_priority = l->l_priority; 3057 kl->l_usrpri = l->l_usrpri; 3058 if (l->l_wmesg) 3059 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3060 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3061 #ifdef MULTIPROCESSOR 3062 if (l->l_cpu != NULL) 3063 kl->l_cpuid = l->l_cpu->ci_cpuid; 3064 else 3065 #endif 3066 kl->l_cpuid = KI_NOCPU; 3067 } 3068 3069 /* 3070 * Fill in an eproc structure for the specified process. 3071 */ 3072 void 3073 fill_eproc(struct proc *p, struct eproc *ep) 3074 { 3075 struct tty *tp; 3076 struct lwp *l; 3077 struct pcred pc; 3078 struct ucred uc; 3079 3080 ep->e_paddr = p; 3081 ep->e_sess = p->p_session; 3082 kauth_cred_topcred(p->p_cred, &pc); 3083 kauth_cred_toucred(p->p_cred, &uc); 3084 ep->e_pcred = pc; 3085 ep->e_ucred = uc; 3086 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 3087 ep->e_vm.vm_rssize = 0; 3088 ep->e_vm.vm_tsize = 0; 3089 ep->e_vm.vm_dsize = 0; 3090 ep->e_vm.vm_ssize = 0; 3091 /* ep->e_vm.vm_pmap = XXX; */ 3092 } else { 3093 struct vmspace *vm = p->p_vmspace; 3094 3095 ep->e_vm.vm_rssize = vm_resident_count(vm); 3096 ep->e_vm.vm_tsize = vm->vm_tsize; 3097 ep->e_vm.vm_dsize = vm->vm_dsize; 3098 ep->e_vm.vm_ssize = vm->vm_ssize; 3099 3100 /* Pick a "representative" LWP */ 3101 l = proc_representative_lwp(p); 3102 3103 if (l->l_wmesg) 3104 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3105 } 3106 if (p->p_pptr) 3107 ep->e_ppid = p->p_pptr->p_pid; 3108 else 3109 ep->e_ppid = 0; 3110 ep->e_pgid = p->p_pgrp->pg_id; 3111 ep->e_sid = ep->e_sess->s_sid; 3112 ep->e_jobc = p->p_pgrp->pg_jobc; 3113 if ((p->p_flag & P_CONTROLT) && 3114 (tp = ep->e_sess->s_ttyp)) { 3115 ep->e_tdev = tp->t_dev; 3116 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3117 ep->e_tsess = tp->t_session; 3118 } else 3119 ep->e_tdev = NODEV; 3120 3121 ep->e_xsize = ep->e_xrssize = 0; 3122 ep->e_xccount = ep->e_xswrss = 0; 3123 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3124 if (SESS_LEADER(p)) 3125 ep->e_flag |= EPROC_SLEADER; 3126 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3127 } 3128
Indexes created Mon Sep 22 21:09:42 GMT 2025