init_sysctl.c revision 1.64
1 /* $NetBSD: init_sysctl.c,v 1.64 2006/03/26 20:07:21 erh 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 1.64 2006/03/26 20:07:21 erh Exp $"); 41 42 #include "opt_sysv.h" 43 #include "opt_multiprocessor.h" 44 #include "opt_posix.h" 45 #include "opt_verified_exec.h" 46 #include "pty.h" 47 #include "rnd.h" 48 49 #include <sys/types.h> 50 #include <sys/param.h> 51 #include <sys/sysctl.h> 52 #include <sys/errno.h> 53 #include <sys/systm.h> 54 #include <sys/kernel.h> 55 #include <sys/unistd.h> 56 #include <sys/disklabel.h> 57 #include <sys/rnd.h> 58 #include <sys/vnode.h> 59 #include <sys/mount.h> 60 #include <sys/namei.h> 61 #include <sys/msgbuf.h> 62 #include <dev/cons.h> 63 #include <sys/socketvar.h> 64 #include <sys/file.h> 65 #include <sys/filedesc.h> 66 #include <sys/tty.h> 67 #include <sys/malloc.h> 68 #include <sys/resource.h> 69 #include <sys/resourcevar.h> 70 #include <sys/exec.h> 71 #include <sys/conf.h> 72 #include <sys/device.h> 73 #ifdef VERIFIED_EXEC 74 #define VERIEXEC_NEED_NODE 75 #include <sys/verified_exec.h> 76 #endif /* VERIFIED_EXEC */ 77 #include <sys/stat.h> 78 79 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 80 #include <sys/ipc.h> 81 #endif 82 #ifdef SYSVMSG 83 #include <sys/msg.h> 84 #endif 85 #ifdef SYSVSEM 86 #include <sys/sem.h> 87 #endif 88 #ifdef SYSVSHM 89 #include <sys/shm.h> 90 #endif 91 92 #include <machine/cpu.h> 93 94 /* XXX this should not be here */ 95 int security_curtain = 0; 96 int security_setidcore_dump; 97 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 98 uid_t security_setidcore_owner = 0; 99 gid_t security_setidcore_group = 0; 100 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 101 102 /* 103 * try over estimating by 5 procs/lwps 104 */ 105 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 106 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 107 108 #ifndef MULTIPROCESSOR 109 #define sysctl_ncpus() (1) 110 #else /* MULTIPROCESSOR */ 111 #ifndef CPU_INFO_FOREACH 112 #define CPU_INFO_ITERATOR int 113 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 114 #endif 115 static int 116 sysctl_ncpus(void) 117 { 118 struct cpu_info *ci; 119 CPU_INFO_ITERATOR cii; 120 121 int ncpus = 0; 122 for (CPU_INFO_FOREACH(cii, ci)) 123 ncpus++; 124 return (ncpus); 125 } 126 #endif /* MULTIPROCESSOR */ 127 128 #ifdef DIAGNOSTIC 129 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 130 #endif 131 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 132 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 133 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 134 static int sysctl_kern_securelevel(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_INT, "securelevel", 339 SYSCTL_DESCR("System security level"), 340 sysctl_kern_securelevel, 0, &securelevel, 0, 341 CTL_KERN, KERN_SECURELVL, CTL_EOL); 342 sysctl_createv(clog, 0, NULL, NULL, 343 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 344 CTLTYPE_STRING, "hostname", 345 SYSCTL_DESCR("System hostname"), 346 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 347 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 348 sysctl_createv(clog, 0, NULL, NULL, 349 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 350 CTLTYPE_INT, "hostid", 351 SYSCTL_DESCR("System host ID number"), 352 sysctl_kern_hostid, 0, NULL, 0, 353 CTL_KERN, KERN_HOSTID, CTL_EOL); 354 sysctl_createv(clog, 0, NULL, NULL, 355 CTLFLAG_PERMANENT, 356 CTLTYPE_STRUCT, "clockrate", 357 SYSCTL_DESCR("Kernel clock rates"), 358 sysctl_kern_clockrate, 0, NULL, 359 sizeof(struct clockinfo), 360 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 361 sysctl_createv(clog, 0, NULL, NULL, 362 CTLFLAG_PERMANENT, 363 CTLTYPE_INT, "hardclock_ticks", 364 SYSCTL_DESCR("Number of hardclock ticks"), 365 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 366 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 367 sysctl_createv(clog, 0, NULL, NULL, 368 CTLFLAG_PERMANENT, 369 CTLTYPE_STRUCT, "vnode", 370 SYSCTL_DESCR("System vnode table"), 371 sysctl_kern_vnode, 0, NULL, 0, 372 CTL_KERN, KERN_VNODE, CTL_EOL); 373 sysctl_createv(clog, 0, NULL, NULL, 374 CTLFLAG_PERMANENT, 375 CTLTYPE_STRUCT, "file", 376 SYSCTL_DESCR("System open file table"), 377 sysctl_kern_file, 0, NULL, 0, 378 CTL_KERN, KERN_FILE, CTL_EOL); 379 #ifndef GPROF 380 sysctl_createv(clog, 0, NULL, NULL, 381 CTLFLAG_PERMANENT, 382 CTLTYPE_NODE, "profiling", 383 SYSCTL_DESCR("Profiling information (not available)"), 384 sysctl_notavail, 0, NULL, 0, 385 CTL_KERN, KERN_PROF, CTL_EOL); 386 #endif 387 sysctl_createv(clog, 0, NULL, NULL, 388 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 389 CTLTYPE_INT, "posix1version", 390 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 391 "with which the operating system attempts " 392 "to comply"), 393 NULL, _POSIX_VERSION, NULL, 0, 394 CTL_KERN, KERN_POSIX1, CTL_EOL); 395 sysctl_createv(clog, 0, NULL, NULL, 396 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 397 CTLTYPE_INT, "ngroups", 398 SYSCTL_DESCR("Maximum number of supplemental groups"), 399 NULL, NGROUPS_MAX, NULL, 0, 400 CTL_KERN, KERN_NGROUPS, CTL_EOL); 401 sysctl_createv(clog, 0, NULL, NULL, 402 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 403 CTLTYPE_INT, "job_control", 404 SYSCTL_DESCR("Whether job control is available"), 405 NULL, 1, NULL, 0, 406 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 407 sysctl_createv(clog, 0, NULL, NULL, 408 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 409 CTLTYPE_INT, "saved_ids", 410 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 411 "available"), NULL, 412 #ifdef _POSIX_SAVED_IDS 413 1, 414 #else /* _POSIX_SAVED_IDS */ 415 0, 416 #endif /* _POSIX_SAVED_IDS */ 417 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 418 sysctl_createv(clog, 0, NULL, NULL, 419 CTLFLAG_PERMANENT, 420 CTLTYPE_STRUCT, "boottime", 421 SYSCTL_DESCR("System boot time"), 422 NULL, 0, &boottime, sizeof(boottime), 423 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 424 sysctl_createv(clog, 0, NULL, NULL, 425 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 426 CTLTYPE_STRING, "domainname", 427 SYSCTL_DESCR("YP domain name"), 428 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 429 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 430 sysctl_createv(clog, 0, NULL, NULL, 431 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 432 CTLTYPE_INT, "maxpartitions", 433 SYSCTL_DESCR("Maximum number of partitions allowed per " 434 "disk"), 435 NULL, MAXPARTITIONS, NULL, 0, 436 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 437 sysctl_createv(clog, 0, NULL, NULL, 438 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 439 CTLTYPE_INT, "rawpartition", 440 SYSCTL_DESCR("Raw partition of a disk"), 441 NULL, RAW_PART, NULL, 0, 442 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 443 sysctl_createv(clog, 0, NULL, NULL, 444 CTLFLAG_PERMANENT, 445 CTLTYPE_STRUCT, "timex", NULL, 446 sysctl_notavail, 0, NULL, 0, 447 CTL_KERN, KERN_TIMEX, CTL_EOL); 448 sysctl_createv(clog, 0, NULL, NULL, 449 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 450 CTLTYPE_INT, "autonicetime", 451 SYSCTL_DESCR("CPU clock seconds before non-root " 452 "process priority is lowered"), 453 sysctl_kern_autonice, 0, &autonicetime, 0, 454 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 455 sysctl_createv(clog, 0, NULL, NULL, 456 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 457 CTLTYPE_INT, "autoniceval", 458 SYSCTL_DESCR("Automatic reniced non-root process " 459 "priority"), 460 sysctl_kern_autonice, 0, &autoniceval, 0, 461 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 462 sysctl_createv(clog, 0, NULL, NULL, 463 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 464 CTLTYPE_INT, "rtc_offset", 465 SYSCTL_DESCR("Offset of real time clock from UTC in " 466 "minutes"), 467 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 468 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 469 sysctl_createv(clog, 0, NULL, NULL, 470 CTLFLAG_PERMANENT, 471 CTLTYPE_STRING, "root_device", 472 SYSCTL_DESCR("Name of the root device"), 473 sysctl_root_device, 0, NULL, 0, 474 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 475 sysctl_createv(clog, 0, NULL, NULL, 476 CTLFLAG_PERMANENT, 477 CTLTYPE_INT, "msgbufsize", 478 SYSCTL_DESCR("Size of the kernel message buffer"), 479 sysctl_msgbuf, 0, NULL, 0, 480 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 481 sysctl_createv(clog, 0, NULL, NULL, 482 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 483 CTLTYPE_INT, "fsync", 484 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 485 "Synchronization Option is available on " 486 "this system"), 487 NULL, 1, NULL, 0, 488 CTL_KERN, KERN_FSYNC, CTL_EOL); 489 sysctl_createv(clog, 0, NULL, NULL, 490 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 491 CTLTYPE_INT, "sysvmsg", 492 SYSCTL_DESCR("System V style message support available"), 493 NULL, 494 #ifdef SYSVMSG 495 1, 496 #else /* SYSVMSG */ 497 0, 498 #endif /* SYSVMSG */ 499 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 500 sysctl_createv(clog, 0, NULL, NULL, 501 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 502 CTLTYPE_INT, "sysvsem", 503 SYSCTL_DESCR("System V style semaphore support " 504 "available"), NULL, 505 #ifdef SYSVSEM 506 1, 507 #else /* SYSVSEM */ 508 0, 509 #endif /* SYSVSEM */ 510 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 511 sysctl_createv(clog, 0, NULL, NULL, 512 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 513 CTLTYPE_INT, "sysvshm", 514 SYSCTL_DESCR("System V style shared memory support " 515 "available"), NULL, 516 #ifdef SYSVSHM 517 1, 518 #else /* SYSVSHM */ 519 0, 520 #endif /* SYSVSHM */ 521 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 522 sysctl_createv(clog, 0, NULL, NULL, 523 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 524 CTLTYPE_INT, "synchronized_io", 525 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 526 "I/O Option is available on this system"), 527 NULL, 1, NULL, 0, 528 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 529 sysctl_createv(clog, 0, NULL, NULL, 530 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 531 CTLTYPE_INT, "iov_max", 532 SYSCTL_DESCR("Maximum number of iovec structures per " 533 "process"), 534 NULL, IOV_MAX, NULL, 0, 535 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 536 sysctl_createv(clog, 0, NULL, NULL, 537 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 538 CTLTYPE_INT, "mapped_files", 539 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 540 "Files Option is available on this system"), 541 NULL, 1, NULL, 0, 542 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 543 sysctl_createv(clog, 0, NULL, NULL, 544 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 545 CTLTYPE_INT, "memlock", 546 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 547 "Locking Option is available on this " 548 "system"), 549 NULL, 1, NULL, 0, 550 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 551 sysctl_createv(clog, 0, NULL, NULL, 552 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 553 CTLTYPE_INT, "memlock_range", 554 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 555 "Locking Option is available on this " 556 "system"), 557 NULL, 1, NULL, 0, 558 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 559 sysctl_createv(clog, 0, NULL, NULL, 560 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 561 CTLTYPE_INT, "memory_protection", 562 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 563 "Protection Option is available on this " 564 "system"), 565 NULL, 1, NULL, 0, 566 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 567 sysctl_createv(clog, 0, NULL, NULL, 568 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 569 CTLTYPE_INT, "login_name_max", 570 SYSCTL_DESCR("Maximum login name length"), 571 NULL, LOGIN_NAME_MAX, NULL, 0, 572 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 573 sysctl_createv(clog, 0, NULL, NULL, 574 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 575 CTLTYPE_STRING, "defcorename", 576 SYSCTL_DESCR("Default core file name"), 577 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 578 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 579 sysctl_createv(clog, 0, NULL, NULL, 580 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 581 CTLTYPE_INT, "logsigexit", 582 SYSCTL_DESCR("Log process exit when caused by signals"), 583 NULL, 0, &kern_logsigexit, 0, 584 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 585 sysctl_createv(clog, 0, NULL, NULL, 586 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 587 CTLTYPE_INT, "fscale", 588 SYSCTL_DESCR("Kernel fixed-point scale factor"), 589 NULL, FSCALE, NULL, 0, 590 CTL_KERN, KERN_FSCALE, CTL_EOL); 591 sysctl_createv(clog, 0, NULL, NULL, 592 CTLFLAG_PERMANENT, 593 CTLTYPE_INT, "ccpu", 594 SYSCTL_DESCR("Scheduler exponential decay value"), 595 NULL, 0, &ccpu, 0, 596 CTL_KERN, KERN_CCPU, CTL_EOL); 597 sysctl_createv(clog, 0, NULL, NULL, 598 CTLFLAG_PERMANENT, 599 CTLTYPE_STRUCT, "cp_time", 600 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 601 sysctl_kern_cptime, 0, NULL, 0, 602 CTL_KERN, KERN_CP_TIME, CTL_EOL); 603 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 604 sysctl_createv(clog, 0, NULL, NULL, 605 CTLFLAG_PERMANENT, 606 CTLTYPE_STRUCT, "sysvipc_info", 607 SYSCTL_DESCR("System V style IPC information"), 608 sysctl_kern_sysvipc, 0, NULL, 0, 609 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 610 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 611 sysctl_createv(clog, 0, NULL, NULL, 612 CTLFLAG_PERMANENT, 613 CTLTYPE_INT, "msgbuf", 614 SYSCTL_DESCR("Kernel message buffer"), 615 sysctl_msgbuf, 0, NULL, 0, 616 CTL_KERN, KERN_MSGBUF, CTL_EOL); 617 sysctl_createv(clog, 0, NULL, NULL, 618 CTLFLAG_PERMANENT, 619 CTLTYPE_STRUCT, "consdev", 620 SYSCTL_DESCR("Console device"), 621 sysctl_consdev, 0, NULL, sizeof(dev_t), 622 CTL_KERN, KERN_CONSDEV, CTL_EOL); 623 #if NPTY > 0 624 sysctl_createv(clog, 0, NULL, NULL, 625 CTLFLAG_PERMANENT, 626 CTLTYPE_INT, "maxptys", 627 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 628 sysctl_kern_maxptys, 0, NULL, 0, 629 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 630 #endif /* NPTY > 0 */ 631 sysctl_createv(clog, 0, NULL, NULL, 632 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 633 CTLTYPE_INT, "maxphys", 634 SYSCTL_DESCR("Maximum raw I/O transfer size"), 635 NULL, MAXPHYS, NULL, 0, 636 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 637 sysctl_createv(clog, 0, NULL, NULL, 638 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 639 CTLTYPE_INT, "sbmax", 640 SYSCTL_DESCR("Maximum socket buffer size"), 641 sysctl_kern_sbmax, 0, NULL, 0, 642 CTL_KERN, KERN_SBMAX, CTL_EOL); 643 sysctl_createv(clog, 0, NULL, NULL, 644 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 645 CTLTYPE_INT, "monotonic_clock", 646 SYSCTL_DESCR("Implementation version of the POSIX " 647 "1003.1b Monotonic Clock Option"), 648 /* XXX _POSIX_VERSION */ 649 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 650 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 651 sysctl_createv(clog, 0, NULL, NULL, 652 CTLFLAG_PERMANENT, 653 CTLTYPE_INT, "urandom", 654 SYSCTL_DESCR("Random integer value"), 655 sysctl_kern_urnd, 0, NULL, 0, 656 CTL_KERN, KERN_URND, CTL_EOL); 657 sysctl_createv(clog, 0, NULL, NULL, 658 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 659 CTLTYPE_INT, "labelsector", 660 SYSCTL_DESCR("Sector number containing the disklabel"), 661 NULL, LABELSECTOR, NULL, 0, 662 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 663 sysctl_createv(clog, 0, NULL, NULL, 664 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 665 CTLTYPE_INT, "labeloffset", 666 SYSCTL_DESCR("Offset of the disklabel within the " 667 "sector"), 668 NULL, LABELOFFSET, NULL, 0, 669 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 670 sysctl_createv(clog, 0, NULL, NULL, 671 CTLFLAG_PERMANENT, 672 CTLTYPE_NODE, "lwp", 673 SYSCTL_DESCR("System-wide LWP information"), 674 sysctl_kern_lwp, 0, NULL, 0, 675 CTL_KERN, KERN_LWP, CTL_EOL); 676 sysctl_createv(clog, 0, NULL, NULL, 677 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 678 CTLTYPE_INT, "forkfsleep", 679 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 680 "to process limits"), 681 sysctl_kern_forkfsleep, 0, NULL, 0, 682 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 683 sysctl_createv(clog, 0, NULL, NULL, 684 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 685 CTLTYPE_INT, "posix_threads", 686 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 687 "Threads option to which the system " 688 "attempts to conform"), 689 /* XXX _POSIX_VERSION */ 690 NULL, _POSIX_THREADS, NULL, 0, 691 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 692 sysctl_createv(clog, 0, NULL, NULL, 693 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 694 CTLTYPE_INT, "posix_semaphores", 695 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 696 "Semaphores option to which the system " 697 "attempts to conform"), NULL, 698 #ifdef P1003_1B_SEMAPHORE 699 200112, 700 #else /* P1003_1B_SEMAPHORE */ 701 0, 702 #endif /* P1003_1B_SEMAPHORE */ 703 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 704 sysctl_createv(clog, 0, NULL, NULL, 705 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 706 CTLTYPE_INT, "posix_barriers", 707 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 708 "Barriers option to which the system " 709 "attempts to conform"), 710 /* XXX _POSIX_VERSION */ 711 NULL, _POSIX_BARRIERS, NULL, 0, 712 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 713 sysctl_createv(clog, 0, NULL, NULL, 714 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 715 CTLTYPE_INT, "posix_timers", 716 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 717 "Timers option to which the system " 718 "attempts to conform"), 719 /* XXX _POSIX_VERSION */ 720 NULL, _POSIX_TIMERS, NULL, 0, 721 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 722 sysctl_createv(clog, 0, NULL, NULL, 723 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 724 CTLTYPE_INT, "posix_spin_locks", 725 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 726 "Locks option to which the system attempts " 727 "to conform"), 728 /* XXX _POSIX_VERSION */ 729 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 730 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 731 sysctl_createv(clog, 0, NULL, NULL, 732 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 733 CTLTYPE_INT, "posix_reader_writer_locks", 734 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 735 "Read-Write Locks option to which the " 736 "system attempts to conform"), 737 /* XXX _POSIX_VERSION */ 738 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 739 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 740 sysctl_createv(clog, 0, NULL, NULL, 741 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 742 CTLTYPE_INT, "dump_on_panic", 743 SYSCTL_DESCR("Perform a crash dump on system panic"), 744 NULL, 0, &dumponpanic, 0, 745 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 746 #ifdef DIAGNOSTIC 747 sysctl_createv(clog, 0, NULL, NULL, 748 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 749 CTLTYPE_INT, "panic_now", 750 SYSCTL_DESCR("Trigger a panic"), 751 sysctl_kern_trigger_panic, 0, NULL, 0, 752 CTL_KERN, CTL_CREATE, CTL_EOL); 753 #endif 754 sysctl_createv(clog, 0, NULL, NULL, 755 CTLFLAG_PERMANENT, 756 CTLTYPE_INT, "root_partition", 757 SYSCTL_DESCR("Root partition on the root device"), 758 sysctl_kern_root_partition, 0, NULL, 0, 759 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 760 sysctl_createv(clog, 0, NULL, NULL, 761 CTLFLAG_PERMANENT, 762 CTLTYPE_STRUCT, "drivers", 763 SYSCTL_DESCR("List of all drivers with block and " 764 "character device numbers"), 765 sysctl_kern_drivers, 0, NULL, 0, 766 CTL_KERN, KERN_DRIVERS, CTL_EOL); 767 sysctl_createv(clog, 0, NULL, NULL, 768 CTLFLAG_PERMANENT, 769 CTLTYPE_STRUCT, "file2", 770 SYSCTL_DESCR("System open file table"), 771 sysctl_kern_file2, 0, NULL, 0, 772 CTL_KERN, KERN_FILE2, CTL_EOL); 773 #ifdef VERIFIED_EXEC 774 sysctl_createv(clog, 0, NULL, NULL, 775 CTLFLAG_PERMANENT, 776 CTLTYPE_NODE, "veriexec", 777 SYSCTL_DESCR("Verified Exec"), 778 NULL, 0, NULL, 0, 779 CTL_KERN, KERN_VERIEXEC, CTL_EOL); 780 sysctl_createv(clog, 0, NULL, NULL, 781 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 782 CTLTYPE_INT, "verbose", 783 SYSCTL_DESCR("Verified Exec verbose level"), 784 NULL, 0, &veriexec_verbose, 0, 785 CTL_KERN, KERN_VERIEXEC, VERIEXEC_VERBOSE, 786 CTL_EOL); 787 sysctl_createv(clog, 0, NULL, NULL, 788 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 789 CTLTYPE_INT, "strict", 790 SYSCTL_DESCR("Verified Exec strict level"), 791 sysctl_kern_veriexec, 0, NULL, 0, 792 CTL_KERN, KERN_VERIEXEC, VERIEXEC_STRICT, CTL_EOL); 793 sysctl_createv(clog, 0, NULL, NULL, 794 CTLFLAG_PERMANENT, 795 CTLTYPE_STRING, "algorithms", 796 SYSCTL_DESCR("Verified Exec supported hashing " 797 "algorithms"), 798 sysctl_kern_veriexec, 0, NULL, 0, 799 CTL_KERN, KERN_VERIEXEC, VERIEXEC_ALGORITHMS, CTL_EOL); 800 sysctl_createv(clog, 0, NULL, &veriexec_count_node, 801 CTLFLAG_PERMANENT, 802 CTLTYPE_NODE, "count", 803 SYSCTL_DESCR("Number of fingerprints on device(s)"), 804 NULL, 0, NULL, 0, 805 CTL_KERN, KERN_VERIEXEC, VERIEXEC_COUNT, CTL_EOL); 806 #endif /* VERIFIED_EXEC */ 807 sysctl_createv(clog, 0, NULL, NULL, 808 CTLFLAG_PERMANENT, 809 CTLTYPE_STRUCT, "cp_id", 810 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 811 sysctl_kern_cpid, 0, NULL, 0, 812 CTL_KERN, KERN_CP_ID, CTL_EOL); 813 } 814 815 SYSCTL_SETUP(sysctl_kern_proc_setup, 816 "sysctl kern.proc/proc2/proc_args subtree setup") 817 { 818 819 sysctl_createv(clog, 0, NULL, NULL, 820 CTLFLAG_PERMANENT, 821 CTLTYPE_NODE, "kern", NULL, 822 NULL, 0, NULL, 0, 823 CTL_KERN, CTL_EOL); 824 825 sysctl_createv(clog, 0, NULL, NULL, 826 CTLFLAG_PERMANENT, 827 CTLTYPE_NODE, "proc", 828 SYSCTL_DESCR("System-wide process information"), 829 sysctl_doeproc, 0, NULL, 0, 830 CTL_KERN, KERN_PROC, CTL_EOL); 831 sysctl_createv(clog, 0, NULL, NULL, 832 CTLFLAG_PERMANENT, 833 CTLTYPE_NODE, "proc2", 834 SYSCTL_DESCR("Machine-independent process information"), 835 sysctl_doeproc, 0, NULL, 0, 836 CTL_KERN, KERN_PROC2, CTL_EOL); 837 sysctl_createv(clog, 0, NULL, NULL, 838 CTLFLAG_PERMANENT, 839 CTLTYPE_NODE, "proc_args", 840 SYSCTL_DESCR("Process argument information"), 841 sysctl_kern_proc_args, 0, NULL, 0, 842 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 843 844 /* 845 "nodes" under these: 846 847 KERN_PROC_ALL 848 KERN_PROC_PID pid 849 KERN_PROC_PGRP pgrp 850 KERN_PROC_SESSION sess 851 KERN_PROC_TTY tty 852 KERN_PROC_UID uid 853 KERN_PROC_RUID uid 854 KERN_PROC_GID gid 855 KERN_PROC_RGID gid 856 857 all in all, probably not worth the effort... 858 */ 859 } 860 861 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 862 { 863 u_int u; 864 u_quad_t q; 865 866 sysctl_createv(clog, 0, NULL, NULL, 867 CTLFLAG_PERMANENT, 868 CTLTYPE_NODE, "hw", NULL, 869 NULL, 0, NULL, 0, 870 CTL_HW, CTL_EOL); 871 872 sysctl_createv(clog, 0, NULL, NULL, 873 CTLFLAG_PERMANENT, 874 CTLTYPE_STRING, "machine", 875 SYSCTL_DESCR("Machine class"), 876 NULL, 0, machine, 0, 877 CTL_HW, HW_MACHINE, CTL_EOL); 878 sysctl_createv(clog, 0, NULL, NULL, 879 CTLFLAG_PERMANENT, 880 CTLTYPE_STRING, "model", 881 SYSCTL_DESCR("Machine model"), 882 NULL, 0, cpu_model, 0, 883 CTL_HW, HW_MODEL, CTL_EOL); 884 sysctl_createv(clog, 0, NULL, NULL, 885 CTLFLAG_PERMANENT, 886 CTLTYPE_INT, "ncpu", 887 SYSCTL_DESCR("Number of active CPUs"), 888 sysctl_hw_ncpu, 0, NULL, 0, 889 CTL_HW, HW_NCPU, CTL_EOL); 890 sysctl_createv(clog, 0, NULL, NULL, 891 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 892 CTLTYPE_INT, "byteorder", 893 SYSCTL_DESCR("System byte order"), 894 NULL, BYTE_ORDER, NULL, 0, 895 CTL_HW, HW_BYTEORDER, CTL_EOL); 896 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 897 UINT_MAX : physmem * PAGE_SIZE; 898 sysctl_createv(clog, 0, NULL, NULL, 899 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 900 CTLTYPE_INT, "physmem", 901 SYSCTL_DESCR("Bytes of physical memory"), 902 NULL, u, NULL, 0, 903 CTL_HW, HW_PHYSMEM, CTL_EOL); 904 sysctl_createv(clog, 0, NULL, NULL, 905 CTLFLAG_PERMANENT, 906 CTLTYPE_INT, "usermem", 907 SYSCTL_DESCR("Bytes of non-kernel memory"), 908 sysctl_hw_usermem, 0, NULL, 0, 909 CTL_HW, HW_USERMEM, CTL_EOL); 910 sysctl_createv(clog, 0, NULL, NULL, 911 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 912 CTLTYPE_INT, "pagesize", 913 SYSCTL_DESCR("Software page size"), 914 NULL, PAGE_SIZE, NULL, 0, 915 CTL_HW, HW_PAGESIZE, CTL_EOL); 916 sysctl_createv(clog, 0, NULL, NULL, 917 CTLFLAG_PERMANENT, 918 CTLTYPE_STRING, "disknames", 919 SYSCTL_DESCR("List of disk devices present"), 920 sysctl_hw_disknames, 0, NULL, 0, 921 CTL_HW, HW_DISKNAMES, CTL_EOL); 922 sysctl_createv(clog, 0, NULL, NULL, 923 CTLFLAG_PERMANENT, 924 CTLTYPE_STRUCT, "diskstats", 925 SYSCTL_DESCR("Statistics on disk operation"), 926 sysctl_hw_diskstats, 0, NULL, 0, 927 CTL_HW, HW_DISKSTATS, CTL_EOL); 928 sysctl_createv(clog, 0, NULL, NULL, 929 CTLFLAG_PERMANENT, 930 CTLTYPE_STRING, "machine_arch", 931 SYSCTL_DESCR("Machine CPU class"), 932 NULL, 0, machine_arch, 0, 933 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 934 sysctl_createv(clog, 0, NULL, NULL, 935 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 936 CTLTYPE_INT, "alignbytes", 937 SYSCTL_DESCR("Alignment constraint for all possible " 938 "data types"), 939 NULL, ALIGNBYTES, NULL, 0, 940 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 941 sysctl_createv(clog, 0, NULL, NULL, 942 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 943 CTLTYPE_STRING, "cnmagic", 944 SYSCTL_DESCR("Console magic key sequence"), 945 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 946 CTL_HW, HW_CNMAGIC, CTL_EOL); 947 q = (u_quad_t)physmem * PAGE_SIZE; 948 sysctl_createv(clog, 0, NULL, NULL, 949 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 950 CTLTYPE_QUAD, "physmem64", 951 SYSCTL_DESCR("Bytes of physical memory"), 952 NULL, q, NULL, 0, 953 CTL_HW, HW_PHYSMEM64, CTL_EOL); 954 sysctl_createv(clog, 0, NULL, NULL, 955 CTLFLAG_PERMANENT, 956 CTLTYPE_QUAD, "usermem64", 957 SYSCTL_DESCR("Bytes of non-kernel memory"), 958 sysctl_hw_usermem, 0, NULL, 0, 959 CTL_HW, HW_USERMEM64, CTL_EOL); 960 } 961 962 #ifdef DEBUG 963 /* 964 * Debugging related system variables. 965 */ 966 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 967 struct ctldebug debug5, debug6, debug7, debug8, debug9; 968 struct ctldebug debug10, debug11, debug12, debug13, debug14; 969 struct ctldebug debug15, debug16, debug17, debug18, debug19; 970 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 971 &debug0, &debug1, &debug2, &debug3, &debug4, 972 &debug5, &debug6, &debug7, &debug8, &debug9, 973 &debug10, &debug11, &debug12, &debug13, &debug14, 974 &debug15, &debug16, &debug17, &debug18, &debug19, 975 }; 976 977 /* 978 * this setup routine is a replacement for debug_sysctl() 979 * 980 * note that it creates several nodes per defined debug variable 981 */ 982 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 983 { 984 struct ctldebug *cdp; 985 char nodename[20]; 986 int i; 987 988 /* 989 * two ways here: 990 * 991 * the "old" way (debug.name -> value) which was emulated by 992 * the sysctl(8) binary 993 * 994 * the new way, which the sysctl(8) binary was actually using 995 996 node debug 997 node debug.0 998 string debug.0.name 999 int debug.0.value 1000 int debug.name 1001 1002 */ 1003 1004 sysctl_createv(clog, 0, NULL, NULL, 1005 CTLFLAG_PERMANENT, 1006 CTLTYPE_NODE, "debug", NULL, 1007 NULL, 0, NULL, 0, 1008 CTL_DEBUG, CTL_EOL); 1009 1010 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1011 cdp = debugvars[i]; 1012 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1013 continue; 1014 1015 snprintf(nodename, sizeof(nodename), "debug%d", i); 1016 sysctl_createv(clog, 0, NULL, NULL, 1017 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1018 CTLTYPE_NODE, nodename, NULL, 1019 NULL, 0, NULL, 0, 1020 CTL_DEBUG, i, CTL_EOL); 1021 sysctl_createv(clog, 0, NULL, NULL, 1022 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1023 CTLTYPE_STRING, "name", NULL, 1024 /*XXXUNCONST*/ 1025 NULL, 0, __UNCONST(cdp->debugname), 0, 1026 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1027 sysctl_createv(clog, 0, NULL, NULL, 1028 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1029 CTLTYPE_INT, "value", NULL, 1030 NULL, 0, cdp->debugvar, 0, 1031 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1032 sysctl_createv(clog, 0, NULL, NULL, 1033 CTLFLAG_PERMANENT, 1034 CTLTYPE_INT, cdp->debugname, NULL, 1035 NULL, 0, cdp->debugvar, 0, 1036 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1037 } 1038 } 1039 #endif /* DEBUG */ 1040 1041 SYSCTL_SETUP(sysctl_security_setup, "sysctl security subtree setup") 1042 { 1043 const struct sysctlnode *rnode = NULL; 1044 1045 sysctl_createv(clog, 0, NULL, &rnode, 1046 CTLFLAG_PERMANENT, 1047 CTLTYPE_NODE, "security", NULL, 1048 NULL, 0, NULL, 0, 1049 CTL_SECURITY, CTL_EOL); 1050 1051 sysctl_createv(clog, 0, &rnode, NULL, 1052 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1053 CTLTYPE_INT, "curtain", 1054 SYSCTL_DESCR("Curtain information about objects" 1055 " to users not owning them."), 1056 NULL, 0, &security_curtain, 0, 1057 CTL_CREATE, CTL_EOL); 1058 1059 sysctl_createv(clog, 0, &rnode, &rnode, 1060 CTLFLAG_PERMANENT, 1061 CTLTYPE_NODE, "setid_core", 1062 SYSCTL_DESCR("Set-id processes' coredump settings."), 1063 NULL, 0, NULL, 0, 1064 CTL_CREATE, CTL_EOL); 1065 sysctl_createv(clog, 0, &rnode, NULL, 1066 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1067 CTLTYPE_INT, "dump", 1068 SYSCTL_DESCR("Allow set-id processes to dump core."), 1069 sysctl_security_setidcore, 0, &security_setidcore_dump, 1070 sizeof(security_setidcore_dump), 1071 CTL_CREATE, CTL_EOL); 1072 sysctl_createv(clog, 0, &rnode, NULL, 1073 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1074 CTLTYPE_STRING, "path", 1075 SYSCTL_DESCR("Path pattern for set-id coredumps."), 1076 sysctl_security_setidcorename, 0, 1077 &security_setidcore_path, 1078 sizeof(security_setidcore_path), 1079 CTL_CREATE, CTL_EOL); 1080 sysctl_createv(clog, 0, &rnode, NULL, 1081 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1082 CTLTYPE_INT, "owner", 1083 SYSCTL_DESCR("Owner id for set-id processes' cores."), 1084 sysctl_security_setidcore, 0, &security_setidcore_owner, 1085 0, 1086 CTL_CREATE, CTL_EOL); 1087 sysctl_createv(clog, 0, &rnode, NULL, 1088 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1089 CTLTYPE_INT, "group", 1090 SYSCTL_DESCR("Group id for set-id processes' cores."), 1091 sysctl_security_setidcore, 0, &security_setidcore_group, 1092 0, 1093 CTL_CREATE, CTL_EOL); 1094 sysctl_createv(clog, 0, &rnode, NULL, 1095 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1096 CTLTYPE_INT, "mode", 1097 SYSCTL_DESCR("Mode for set-id processes' cores."), 1098 sysctl_security_setidcore, 0, &security_setidcore_mode, 1099 0, 1100 CTL_CREATE, CTL_EOL); 1101 } 1102 1103 /* 1104 * ******************************************************************** 1105 * section 2: private node-specific helper routines. 1106 * ******************************************************************** 1107 */ 1108 1109 #ifdef DIAGNOSTIC 1110 static int 1111 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1112 { 1113 int newtrig, error; 1114 struct sysctlnode node; 1115 1116 newtrig = 0; 1117 node = *rnode; 1118 node.sysctl_data = &newtrig; 1119 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1120 if (error || newp == NULL) 1121 return (error); 1122 1123 if (newtrig != 0) 1124 panic("Panic triggered"); 1125 1126 return (error); 1127 } 1128 #endif 1129 1130 /* 1131 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1132 * new value is lower than desiredvnodes and then calls reinit 1133 * routines that needs to adjust to the new value. 1134 */ 1135 static int 1136 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1137 { 1138 int error, new_vnodes, old_vnodes; 1139 struct sysctlnode node; 1140 1141 new_vnodes = desiredvnodes; 1142 node = *rnode; 1143 node.sysctl_data = &new_vnodes; 1144 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1145 if (error || newp == NULL) 1146 return (error); 1147 1148 old_vnodes = desiredvnodes; 1149 desiredvnodes = new_vnodes; 1150 if (new_vnodes < old_vnodes) { 1151 error = vfs_drainvnodes(new_vnodes, l); 1152 if (error) { 1153 desiredvnodes = old_vnodes; 1154 return (error); 1155 } 1156 } 1157 vfs_reinit(); 1158 nchreinit(); 1159 1160 return (0); 1161 } 1162 1163 /* 1164 * sysctl helper routine for rtc_offset - set time after changes 1165 */ 1166 static int 1167 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1168 { 1169 struct timespec ts, delta; 1170 int error, new_rtc_offset; 1171 struct sysctlnode node; 1172 1173 new_rtc_offset = rtc_offset; 1174 node = *rnode; 1175 node.sysctl_data = &new_rtc_offset; 1176 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1177 if (error || newp == NULL) 1178 return (error); 1179 1180 if (securelevel > 0) 1181 return (EPERM); 1182 if (rtc_offset == new_rtc_offset) 1183 return (0); 1184 1185 /* if we change the offset, adjust the time */ 1186 nanotime(&ts); 1187 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1188 delta.tv_nsec = 0; 1189 timespecadd(&ts, &delta, &ts); 1190 rtc_offset = new_rtc_offset; 1191 settime(l->l_proc, &ts); 1192 1193 return (0); 1194 } 1195 1196 /* 1197 * sysctl helper routine for kern.maxproc. ensures that the new 1198 * values are not too low or too high. 1199 */ 1200 static int 1201 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1202 { 1203 int error, nmaxproc; 1204 struct sysctlnode node; 1205 1206 nmaxproc = maxproc; 1207 node = *rnode; 1208 node.sysctl_data = &nmaxproc; 1209 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1210 if (error || newp == NULL) 1211 return (error); 1212 1213 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1214 return (EINVAL); 1215 #ifdef __HAVE_CPU_MAXPROC 1216 if (nmaxproc > cpu_maxproc()) 1217 return (EINVAL); 1218 #endif 1219 maxproc = nmaxproc; 1220 1221 return (0); 1222 } 1223 1224 /* 1225 * sysctl helper routine for kern.securelevel. ensures that the value 1226 * only rises unless the caller has pid 1 (assumed to be init). 1227 */ 1228 static int 1229 sysctl_kern_securelevel(SYSCTLFN_ARGS) 1230 { 1231 int newsecurelevel, error; 1232 struct sysctlnode node; 1233 1234 newsecurelevel = securelevel; 1235 node = *rnode; 1236 node.sysctl_data = &newsecurelevel; 1237 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1238 if (error || newp == NULL) 1239 return (error); 1240 1241 if (newsecurelevel < securelevel && l && l->l_proc->p_pid != 1) 1242 return (EPERM); 1243 securelevel = newsecurelevel; 1244 1245 return (error); 1246 } 1247 1248 /* 1249 * sysctl helper function for kern.hostid. the hostid is a long, but 1250 * we export it as an int, so we need to give it a little help. 1251 */ 1252 static int 1253 sysctl_kern_hostid(SYSCTLFN_ARGS) 1254 { 1255 int error, inthostid; 1256 struct sysctlnode node; 1257 1258 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1259 node = *rnode; 1260 node.sysctl_data = &inthostid; 1261 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1262 if (error || newp == NULL) 1263 return (error); 1264 1265 hostid = (unsigned)inthostid; 1266 1267 return (0); 1268 } 1269 1270 /* 1271 * sysctl helper function for kern.hostname and kern.domainnname. 1272 * resets the relevant recorded length when the underlying name is 1273 * changed. 1274 */ 1275 static int 1276 sysctl_setlen(SYSCTLFN_ARGS) 1277 { 1278 int error; 1279 1280 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1281 if (error || newp == NULL) 1282 return (error); 1283 1284 switch (rnode->sysctl_num) { 1285 case KERN_HOSTNAME: 1286 hostnamelen = strlen((const char*)rnode->sysctl_data); 1287 break; 1288 case KERN_DOMAINNAME: 1289 domainnamelen = strlen((const char*)rnode->sysctl_data); 1290 break; 1291 } 1292 1293 return (0); 1294 } 1295 1296 /* 1297 * sysctl helper routine for kern.clockrate. assembles a struct on 1298 * the fly to be returned to the caller. 1299 */ 1300 static int 1301 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1302 { 1303 struct clockinfo clkinfo; 1304 struct sysctlnode node; 1305 1306 clkinfo.tick = tick; 1307 clkinfo.tickadj = tickadj; 1308 clkinfo.hz = hz; 1309 clkinfo.profhz = profhz; 1310 clkinfo.stathz = stathz ? stathz : hz; 1311 1312 node = *rnode; 1313 node.sysctl_data = &clkinfo; 1314 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1315 } 1316 1317 1318 /* 1319 * sysctl helper routine for kern.file pseudo-subtree. 1320 */ 1321 static int 1322 sysctl_kern_file(SYSCTLFN_ARGS) 1323 { 1324 int error; 1325 size_t buflen; 1326 struct file *fp; 1327 char *start, *where; 1328 1329 start = where = oldp; 1330 buflen = *oldlenp; 1331 if (where == NULL) { 1332 /* 1333 * overestimate by 10 files 1334 */ 1335 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1336 return (0); 1337 } 1338 1339 /* 1340 * first copyout filehead 1341 */ 1342 if (buflen < sizeof(filehead)) { 1343 *oldlenp = 0; 1344 return (0); 1345 } 1346 error = copyout(&filehead, where, sizeof(filehead)); 1347 if (error) 1348 return (error); 1349 buflen -= sizeof(filehead); 1350 where += sizeof(filehead); 1351 1352 /* 1353 * followed by an array of file structures 1354 */ 1355 LIST_FOREACH(fp, &filehead, f_list) { 1356 if (CURTAIN(l->l_proc->p_ucred->cr_uid, fp->f_cred->cr_uid)) 1357 continue; 1358 if (buflen < sizeof(struct file)) { 1359 *oldlenp = where - start; 1360 return (ENOMEM); 1361 } 1362 error = copyout(fp, where, sizeof(struct file)); 1363 if (error) 1364 return (error); 1365 buflen -= sizeof(struct file); 1366 where += sizeof(struct file); 1367 } 1368 *oldlenp = where - start; 1369 return (0); 1370 } 1371 1372 /* 1373 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1374 * asserts that the assigned value is in the correct range. 1375 */ 1376 static int 1377 sysctl_kern_autonice(SYSCTLFN_ARGS) 1378 { 1379 int error, t = 0; 1380 struct sysctlnode node; 1381 1382 node = *rnode; 1383 t = *(int*)node.sysctl_data; 1384 node.sysctl_data = &t; 1385 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1386 if (error || newp == NULL) 1387 return (error); 1388 1389 switch (node.sysctl_num) { 1390 case KERN_AUTONICETIME: 1391 if (t >= 0) 1392 autonicetime = t; 1393 break; 1394 case KERN_AUTONICEVAL: 1395 if (t < PRIO_MIN) 1396 t = PRIO_MIN; 1397 else if (t > PRIO_MAX) 1398 t = PRIO_MAX; 1399 autoniceval = t; 1400 break; 1401 } 1402 1403 return (0); 1404 } 1405 1406 /* 1407 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1408 * former it merely checks the message buffer is set up. for the latter, 1409 * it also copies out the data if necessary. 1410 */ 1411 static int 1412 sysctl_msgbuf(SYSCTLFN_ARGS) 1413 { 1414 char *where = oldp; 1415 size_t len, maxlen; 1416 long beg, end; 1417 int error; 1418 1419 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1420 msgbufenabled = 0; 1421 return (ENXIO); 1422 } 1423 1424 switch (rnode->sysctl_num) { 1425 case KERN_MSGBUFSIZE: { 1426 struct sysctlnode node = *rnode; 1427 int msg_bufs = (int)msgbufp->msg_bufs; 1428 node.sysctl_data = &msg_bufs; 1429 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1430 } 1431 case KERN_MSGBUF: 1432 break; 1433 default: 1434 return (EOPNOTSUPP); 1435 } 1436 1437 if (newp != NULL) 1438 return (EPERM); 1439 1440 if (oldp == NULL) { 1441 /* always return full buffer size */ 1442 *oldlenp = msgbufp->msg_bufs; 1443 return (0); 1444 } 1445 1446 error = 0; 1447 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1448 1449 /* 1450 * First, copy from the write pointer to the end of 1451 * message buffer. 1452 */ 1453 beg = msgbufp->msg_bufx; 1454 end = msgbufp->msg_bufs; 1455 while (maxlen > 0) { 1456 len = MIN(end - beg, maxlen); 1457 if (len == 0) 1458 break; 1459 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1460 if (error) 1461 break; 1462 where += len; 1463 maxlen -= len; 1464 1465 /* 1466 * ... then, copy from the beginning of message buffer to 1467 * the write pointer. 1468 */ 1469 beg = 0; 1470 end = msgbufp->msg_bufx; 1471 } 1472 1473 return (error); 1474 } 1475 1476 /* 1477 * sysctl helper routine for kern.defcorename. in the case of a new 1478 * string being assigned, check that it's not a zero-length string. 1479 * (XXX the check in -current doesn't work, but do we really care?) 1480 */ 1481 static int 1482 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1483 { 1484 int error; 1485 char *newcorename; 1486 struct sysctlnode node; 1487 1488 newcorename = PNBUF_GET(); 1489 node = *rnode; 1490 node.sysctl_data = &newcorename[0]; 1491 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1492 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1493 if (error || newp == NULL) { 1494 goto done; 1495 } 1496 1497 /* 1498 * when sysctl_lookup() deals with a string, it's guaranteed 1499 * to come back nul terminated. so there. :) 1500 */ 1501 if (strlen(newcorename) == 0) { 1502 error = EINVAL; 1503 } else { 1504 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1505 error = 0; 1506 } 1507 done: 1508 PNBUF_PUT(newcorename); 1509 return error; 1510 } 1511 1512 /* 1513 * sysctl helper routine for kern.cp_time node. adds up cpu time 1514 * across all cpus. 1515 */ 1516 static int 1517 sysctl_kern_cptime(SYSCTLFN_ARGS) 1518 { 1519 struct sysctlnode node = *rnode; 1520 1521 #ifndef MULTIPROCESSOR 1522 1523 if (namelen == 1) { 1524 if (name[0] != 0) 1525 return (ENOENT); 1526 /* 1527 * you're allowed to ask for the zero'th processor 1528 */ 1529 name++; 1530 namelen--; 1531 } 1532 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1533 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1534 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1535 1536 #else /* MULTIPROCESSOR */ 1537 1538 uint64_t *cp_time = NULL; 1539 int error, n = sysctl_ncpus(), i; 1540 struct cpu_info *ci; 1541 CPU_INFO_ITERATOR cii; 1542 1543 /* 1544 * if you specifically pass a buffer that is the size of the 1545 * sum, or if you are probing for the size, you get the "sum" 1546 * of cp_time (and the size thereof) across all processors. 1547 * 1548 * alternately, you can pass an additional mib number and get 1549 * cp_time for that particular processor. 1550 */ 1551 switch (namelen) { 1552 case 0: 1553 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1554 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1555 n = -1; /* SUM */ 1556 } 1557 else { 1558 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1559 n = -2; /* ALL */ 1560 } 1561 break; 1562 case 1: 1563 if (name[0] < 0 || name[0] >= n) 1564 return (ENOENT); /* ENOSUCHPROCESSOR */ 1565 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1566 n = name[0]; 1567 /* 1568 * adjust these so that sysctl_lookup() will be happy 1569 */ 1570 name++; 1571 namelen--; 1572 break; 1573 default: 1574 return (EINVAL); 1575 } 1576 1577 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1578 if (cp_time == NULL) 1579 return (ENOMEM); 1580 node.sysctl_data = cp_time; 1581 memset(cp_time, 0, node.sysctl_size); 1582 1583 for (CPU_INFO_FOREACH(cii, ci)) { 1584 if (n <= 0) 1585 for (i = 0; i < CPUSTATES; i++) 1586 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1587 /* 1588 * if a specific processor was requested and we just 1589 * did it, we're done here 1590 */ 1591 if (n == 0) 1592 break; 1593 /* 1594 * if doing "all", skip to next cp_time set for next processor 1595 */ 1596 if (n == -2) 1597 cp_time += CPUSTATES; 1598 /* 1599 * if we're doing a specific processor, we're one 1600 * processor closer 1601 */ 1602 if (n > 0) 1603 n--; 1604 } 1605 1606 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1607 free(node.sysctl_data, M_TEMP); 1608 return (error); 1609 1610 #endif /* MULTIPROCESSOR */ 1611 } 1612 1613 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1614 /* 1615 * sysctl helper routine for kern.sysvipc_info subtree. 1616 */ 1617 1618 #define FILL_PERM(src, dst) do { \ 1619 (dst)._key = (src)._key; \ 1620 (dst).uid = (src).uid; \ 1621 (dst).gid = (src).gid; \ 1622 (dst).cuid = (src).cuid; \ 1623 (dst).cgid = (src).cgid; \ 1624 (dst).mode = (src).mode; \ 1625 (dst)._seq = (src)._seq; \ 1626 } while (/*CONSTCOND*/ 0); 1627 #define FILL_MSG(src, dst) do { \ 1628 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1629 (dst).msg_qnum = (src).msg_qnum; \ 1630 (dst).msg_qbytes = (src).msg_qbytes; \ 1631 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1632 (dst).msg_lspid = (src).msg_lspid; \ 1633 (dst).msg_lrpid = (src).msg_lrpid; \ 1634 (dst).msg_stime = (src).msg_stime; \ 1635 (dst).msg_rtime = (src).msg_rtime; \ 1636 (dst).msg_ctime = (src).msg_ctime; \ 1637 } while (/*CONSTCOND*/ 0) 1638 #define FILL_SEM(src, dst) do { \ 1639 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1640 (dst).sem_nsems = (src).sem_nsems; \ 1641 (dst).sem_otime = (src).sem_otime; \ 1642 (dst).sem_ctime = (src).sem_ctime; \ 1643 } while (/*CONSTCOND*/ 0) 1644 #define FILL_SHM(src, dst) do { \ 1645 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1646 (dst).shm_segsz = (src).shm_segsz; \ 1647 (dst).shm_lpid = (src).shm_lpid; \ 1648 (dst).shm_cpid = (src).shm_cpid; \ 1649 (dst).shm_atime = (src).shm_atime; \ 1650 (dst).shm_dtime = (src).shm_dtime; \ 1651 (dst).shm_ctime = (src).shm_ctime; \ 1652 (dst).shm_nattch = (src).shm_nattch; \ 1653 } while (/*CONSTCOND*/ 0) 1654 1655 static int 1656 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1657 { 1658 void *where = oldp; 1659 size_t *sizep = oldlenp; 1660 #ifdef SYSVMSG 1661 struct msg_sysctl_info *msgsi = NULL; 1662 #endif 1663 #ifdef SYSVSEM 1664 struct sem_sysctl_info *semsi = NULL; 1665 #endif 1666 #ifdef SYSVSHM 1667 struct shm_sysctl_info *shmsi = NULL; 1668 #endif 1669 size_t infosize, dssize, tsize, buflen; 1670 void *bf = NULL; 1671 char *start; 1672 int32_t nds; 1673 int i, error, ret; 1674 1675 if (namelen != 1) 1676 return (EINVAL); 1677 1678 start = where; 1679 buflen = *sizep; 1680 1681 switch (*name) { 1682 case KERN_SYSVIPC_MSG_INFO: 1683 #ifdef SYSVMSG 1684 infosize = sizeof(msgsi->msginfo); 1685 nds = msginfo.msgmni; 1686 dssize = sizeof(msgsi->msgids[0]); 1687 break; 1688 #else 1689 return (EINVAL); 1690 #endif 1691 case KERN_SYSVIPC_SEM_INFO: 1692 #ifdef SYSVSEM 1693 infosize = sizeof(semsi->seminfo); 1694 nds = seminfo.semmni; 1695 dssize = sizeof(semsi->semids[0]); 1696 break; 1697 #else 1698 return (EINVAL); 1699 #endif 1700 case KERN_SYSVIPC_SHM_INFO: 1701 #ifdef SYSVSHM 1702 infosize = sizeof(shmsi->shminfo); 1703 nds = shminfo.shmmni; 1704 dssize = sizeof(shmsi->shmids[0]); 1705 break; 1706 #else 1707 return (EINVAL); 1708 #endif 1709 default: 1710 return (EINVAL); 1711 } 1712 /* 1713 * Round infosize to 64 bit boundary if requesting more than just 1714 * the info structure or getting the total data size. 1715 */ 1716 if (where == NULL || *sizep > infosize) 1717 infosize = ((infosize + 7) / 8) * 8; 1718 tsize = infosize + nds * dssize; 1719 1720 /* Return just the total size required. */ 1721 if (where == NULL) { 1722 *sizep = tsize; 1723 return (0); 1724 } 1725 1726 /* Not enough room for even the info struct. */ 1727 if (buflen < infosize) { 1728 *sizep = 0; 1729 return (ENOMEM); 1730 } 1731 bf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1732 memset(bf, 0, min(tsize, buflen)); 1733 1734 switch (*name) { 1735 #ifdef SYSVMSG 1736 case KERN_SYSVIPC_MSG_INFO: 1737 msgsi = (struct msg_sysctl_info *)bf; 1738 msgsi->msginfo = msginfo; 1739 break; 1740 #endif 1741 #ifdef SYSVSEM 1742 case KERN_SYSVIPC_SEM_INFO: 1743 semsi = (struct sem_sysctl_info *)bf; 1744 semsi->seminfo = seminfo; 1745 break; 1746 #endif 1747 #ifdef SYSVSHM 1748 case KERN_SYSVIPC_SHM_INFO: 1749 shmsi = (struct shm_sysctl_info *)bf; 1750 shmsi->shminfo = shminfo; 1751 break; 1752 #endif 1753 } 1754 buflen -= infosize; 1755 1756 ret = 0; 1757 if (buflen > 0) { 1758 /* Fill in the IPC data structures. */ 1759 for (i = 0; i < nds; i++) { 1760 if (buflen < dssize) { 1761 ret = ENOMEM; 1762 break; 1763 } 1764 switch (*name) { 1765 #ifdef SYSVMSG 1766 case KERN_SYSVIPC_MSG_INFO: 1767 FILL_MSG(msqids[i], msgsi->msgids[i]); 1768 break; 1769 #endif 1770 #ifdef SYSVSEM 1771 case KERN_SYSVIPC_SEM_INFO: 1772 FILL_SEM(sema[i], semsi->semids[i]); 1773 break; 1774 #endif 1775 #ifdef SYSVSHM 1776 case KERN_SYSVIPC_SHM_INFO: 1777 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1778 break; 1779 #endif 1780 } 1781 buflen -= dssize; 1782 } 1783 } 1784 *sizep -= buflen; 1785 error = copyout(bf, start, *sizep); 1786 /* If copyout succeeded, use return code set earlier. */ 1787 if (error == 0) 1788 error = ret; 1789 if (bf) 1790 free(bf, M_TEMP); 1791 return (error); 1792 } 1793 1794 #undef FILL_PERM 1795 #undef FILL_MSG 1796 #undef FILL_SEM 1797 #undef FILL_SHM 1798 1799 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1800 1801 #if NPTY > 0 1802 /* 1803 * sysctl helper routine for kern.maxptys. ensures that any new value 1804 * is acceptable to the pty subsystem. 1805 */ 1806 static int 1807 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1808 { 1809 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1810 int error, xmax; 1811 struct sysctlnode node; 1812 1813 /* get current value of maxptys */ 1814 xmax = pty_maxptys(0, 0); 1815 1816 node = *rnode; 1817 node.sysctl_data = &xmax; 1818 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1819 if (error || newp == NULL) 1820 return (error); 1821 1822 if (xmax != pty_maxptys(xmax, 1)) 1823 return (EINVAL); 1824 1825 return (0); 1826 } 1827 #endif /* NPTY > 0 */ 1828 1829 /* 1830 * sysctl helper routine for kern.sbmax. basically just ensures that 1831 * any new value is not too small. 1832 */ 1833 static int 1834 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1835 { 1836 int error, new_sbmax; 1837 struct sysctlnode node; 1838 1839 new_sbmax = sb_max; 1840 node = *rnode; 1841 node.sysctl_data = &new_sbmax; 1842 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1843 if (error || newp == NULL) 1844 return (error); 1845 1846 error = sb_max_set(new_sbmax); 1847 1848 return (error); 1849 } 1850 1851 /* 1852 * sysctl helper routine for kern.urandom node. picks a random number 1853 * for you. 1854 */ 1855 static int 1856 sysctl_kern_urnd(SYSCTLFN_ARGS) 1857 { 1858 #if NRND > 0 1859 int v; 1860 1861 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1862 struct sysctlnode node = *rnode; 1863 node.sysctl_data = &v; 1864 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1865 } 1866 else 1867 return (EIO); /*XXX*/ 1868 #else 1869 return (EOPNOTSUPP); 1870 #endif 1871 } 1872 1873 /* 1874 * sysctl helper routine to do kern.lwp.* work. 1875 */ 1876 static int 1877 sysctl_kern_lwp(SYSCTLFN_ARGS) 1878 { 1879 struct kinfo_lwp klwp; 1880 struct proc *p; 1881 struct lwp *l2; 1882 char *where, *dp; 1883 int pid, elem_size, elem_count; 1884 int buflen, needed, error; 1885 1886 if (namelen == 1 && name[0] == CTL_QUERY) 1887 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1888 1889 dp = where = oldp; 1890 buflen = where != NULL ? *oldlenp : 0; 1891 error = needed = 0; 1892 1893 if (newp != NULL || namelen != 3) 1894 return (EINVAL); 1895 pid = name[0]; 1896 elem_size = name[1]; 1897 elem_count = name[2]; 1898 1899 p = pfind(pid); 1900 if (p == NULL) 1901 return (ESRCH); 1902 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1903 if (buflen >= elem_size && elem_count > 0) { 1904 fill_lwp(l2, &klwp); 1905 /* 1906 * Copy out elem_size, but not larger than 1907 * the size of a struct kinfo_proc2. 1908 */ 1909 error = copyout(&klwp, dp, 1910 min(sizeof(klwp), elem_size)); 1911 if (error) 1912 goto cleanup; 1913 dp += elem_size; 1914 buflen -= elem_size; 1915 elem_count--; 1916 } 1917 needed += elem_size; 1918 } 1919 1920 if (where != NULL) { 1921 *oldlenp = dp - where; 1922 if (needed > *oldlenp) 1923 return (ENOMEM); 1924 } else { 1925 needed += KERN_LWPSLOP; 1926 *oldlenp = needed; 1927 } 1928 return (0); 1929 cleanup: 1930 return (error); 1931 } 1932 1933 /* 1934 * sysctl helper routine for kern.forkfsleep node. ensures that the 1935 * given value is not too large or two small, and is at least one 1936 * timer tick if not zero. 1937 */ 1938 static int 1939 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1940 { 1941 /* userland sees value in ms, internally is in ticks */ 1942 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1943 int error, timo, lsleep; 1944 struct sysctlnode node; 1945 1946 lsleep = forkfsleep * 1000 / hz; 1947 node = *rnode; 1948 node.sysctl_data = &lsleep; 1949 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1950 if (error || newp == NULL) 1951 return (error); 1952 1953 /* refuse negative values, and overly 'long time' */ 1954 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1955 return (EINVAL); 1956 1957 timo = mstohz(lsleep); 1958 1959 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1960 if (lsleep != 0 && timo == 0) 1961 forkfsleep = 1; 1962 else 1963 forkfsleep = timo; 1964 1965 return (0); 1966 } 1967 1968 /* 1969 * sysctl helper routine for kern.root_partition 1970 */ 1971 static int 1972 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1973 { 1974 int rootpart = DISKPART(rootdev); 1975 struct sysctlnode node = *rnode; 1976 1977 node.sysctl_data = &rootpart; 1978 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1979 } 1980 1981 /* 1982 * sysctl helper function for kern.drivers 1983 */ 1984 static int 1985 sysctl_kern_drivers(SYSCTLFN_ARGS) 1986 { 1987 int error; 1988 size_t buflen; 1989 struct kinfo_drivers kd; 1990 char *start, *where; 1991 const char *dname; 1992 int i; 1993 extern struct devsw_conv *devsw_conv; 1994 extern int max_devsw_convs; 1995 1996 if (newp != NULL || namelen != 0) 1997 return (EINVAL); 1998 1999 start = where = oldp; 2000 buflen = *oldlenp; 2001 if (where == NULL) { 2002 *oldlenp = max_devsw_convs * sizeof kd; 2003 return 0; 2004 } 2005 2006 /* 2007 * An array of kinfo_drivers structures 2008 */ 2009 error = 0; 2010 for (i = 0; i < max_devsw_convs; i++) { 2011 dname = devsw_conv[i].d_name; 2012 if (dname == NULL) 2013 continue; 2014 if (buflen < sizeof kd) { 2015 error = ENOMEM; 2016 break; 2017 } 2018 memset(&kd, 0, sizeof(kd)); 2019 kd.d_bmajor = devsw_conv[i].d_bmajor; 2020 kd.d_cmajor = devsw_conv[i].d_cmajor; 2021 strlcpy(kd.d_name, dname, sizeof kd.d_name); 2022 error = copyout(&kd, where, sizeof kd); 2023 if (error != 0) 2024 break; 2025 buflen -= sizeof kd; 2026 where += sizeof kd; 2027 } 2028 *oldlenp = where - start; 2029 return error; 2030 } 2031 2032 /* 2033 * sysctl helper function for kern.file2 2034 */ 2035 static int 2036 sysctl_kern_file2(SYSCTLFN_ARGS) 2037 { 2038 struct proc *p; 2039 struct file *fp; 2040 struct filedesc *fd; 2041 struct kinfo_file kf; 2042 char *dp; 2043 u_int i, op; 2044 size_t len, needed, elem_size, out_size; 2045 int error, arg, elem_count; 2046 2047 if (namelen == 1 && name[0] == CTL_QUERY) 2048 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2049 2050 if (namelen != 4) 2051 return (EINVAL); 2052 2053 error = 0; 2054 dp = oldp; 2055 len = (oldp != NULL) ? *oldlenp : 0; 2056 op = name[0]; 2057 arg = name[1]; 2058 elem_size = name[2]; 2059 elem_count = name[3]; 2060 out_size = MIN(sizeof(kf), elem_size); 2061 needed = 0; 2062 2063 if (elem_size < 1 || elem_count < 0) 2064 return (EINVAL); 2065 2066 switch (op) { 2067 case KERN_FILE_BYFILE: 2068 /* 2069 * doesn't use arg so it must be zero 2070 */ 2071 if (arg != 0) 2072 return (EINVAL); 2073 LIST_FOREACH(fp, &filehead, f_list) { 2074 if (CURTAIN(l->l_proc->p_ucred->cr_uid, 2075 fp->f_cred->cr_uid)) 2076 continue; 2077 if (len >= elem_size && elem_count > 0) { 2078 fill_file(&kf, fp, NULL, 0); 2079 error = copyout(&kf, dp, out_size); 2080 if (error) 2081 break; 2082 dp += elem_size; 2083 len -= elem_size; 2084 } 2085 if (elem_count > 0) { 2086 needed += elem_size; 2087 if (elem_count != INT_MAX) 2088 elem_count--; 2089 } 2090 } 2091 break; 2092 case KERN_FILE_BYPID: 2093 if (arg < -1) 2094 /* -1 means all processes */ 2095 return (EINVAL); 2096 proclist_lock_read(); 2097 PROCLIST_FOREACH(p, &allproc) { 2098 if (p->p_stat == SIDL) 2099 /* skip embryonic processes */ 2100 continue; 2101 if (CURTAIN(l->l_proc->p_ucred->cr_uid, 2102 p->p_ucred->cr_uid)) 2103 continue; 2104 if (arg > 0 && p->p_pid != arg) 2105 /* pick only the one we want */ 2106 /* XXX want 0 to mean "kernel files" */ 2107 continue; 2108 fd = p->p_fd; 2109 for (i = 0; i < fd->fd_nfiles; i++) { 2110 fp = fd->fd_ofiles[i]; 2111 if (fp == NULL || !FILE_IS_USABLE(fp)) 2112 continue; 2113 if (len >= elem_size && elem_count > 0) { 2114 fill_file(&kf, fd->fd_ofiles[i], 2115 p, i); 2116 error = copyout(&kf, dp, out_size); 2117 if (error) 2118 break; 2119 dp += elem_size; 2120 len -= elem_size; 2121 } 2122 if (elem_count > 0) { 2123 needed += elem_size; 2124 if (elem_count != INT_MAX) 2125 elem_count--; 2126 } 2127 } 2128 } 2129 proclist_unlock_read(); 2130 break; 2131 default: 2132 return (EINVAL); 2133 } 2134 2135 if (oldp == NULL) 2136 needed += KERN_FILESLOP * elem_size; 2137 *oldlenp = needed; 2138 2139 return (error); 2140 } 2141 2142 static void 2143 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2144 { 2145 2146 memset(kp, 0, sizeof(*kp)); 2147 2148 kp->ki_fileaddr = PTRTOUINT64(fp); 2149 kp->ki_flag = fp->f_flag; 2150 kp->ki_iflags = fp->f_iflags; 2151 kp->ki_ftype = fp->f_type; 2152 kp->ki_count = fp->f_count; 2153 kp->ki_msgcount = fp->f_msgcount; 2154 kp->ki_usecount = fp->f_usecount; 2155 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2156 kp->ki_fuid = fp->f_cred->cr_uid; 2157 kp->ki_fgid = fp->f_cred->cr_gid; 2158 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2159 kp->ki_foffset = fp->f_offset; 2160 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2161 2162 /* vnode information to glue this file to something */ 2163 if (fp->f_type == DTYPE_VNODE) { 2164 struct vnode *vp = (struct vnode *)fp->f_data; 2165 2166 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2167 kp->ki_vsize = vp->v_size; 2168 kp->ki_vtype = vp->v_type; 2169 kp->ki_vtag = vp->v_tag; 2170 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2171 } 2172 2173 /* process information when retrieved via KERN_FILE_BYPID */ 2174 if (p) { 2175 kp->ki_pid = p->p_pid; 2176 kp->ki_fd = i; 2177 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2178 } 2179 } 2180 2181 static int 2182 sysctl_doeproc(SYSCTLFN_ARGS) 2183 { 2184 struct eproc eproc; 2185 struct kinfo_proc2 kproc2; 2186 struct kinfo_proc *dp; 2187 struct proc *p; 2188 const struct proclist_desc *pd; 2189 char *where, *dp2; 2190 int type, op, arg; 2191 u_int elem_size, elem_count; 2192 size_t buflen, needed; 2193 int error; 2194 2195 if (namelen == 1 && name[0] == CTL_QUERY) 2196 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2197 2198 dp = oldp; 2199 dp2 = where = oldp; 2200 buflen = where != NULL ? *oldlenp : 0; 2201 error = 0; 2202 needed = 0; 2203 type = rnode->sysctl_num; 2204 2205 if (type == KERN_PROC) { 2206 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2207 return (EINVAL); 2208 op = name[0]; 2209 if (op != KERN_PROC_ALL) 2210 arg = name[1]; 2211 else 2212 arg = 0; /* Quell compiler warning */ 2213 elem_size = elem_count = 0; /* Ditto */ 2214 } else { 2215 if (namelen != 4) 2216 return (EINVAL); 2217 op = name[0]; 2218 arg = name[1]; 2219 elem_size = name[2]; 2220 elem_count = name[3]; 2221 } 2222 2223 proclist_lock_read(); 2224 2225 pd = proclists; 2226 again: 2227 PROCLIST_FOREACH(p, pd->pd_list) { 2228 /* 2229 * Skip embryonic processes. 2230 */ 2231 if (p->p_stat == SIDL) 2232 continue; 2233 2234 if (CURTAIN(l->l_proc->p_ucred->cr_uid, p->p_ucred->cr_uid)) 2235 continue; 2236 2237 /* 2238 * TODO - make more efficient (see notes below). 2239 * do by session. 2240 */ 2241 switch (op) { 2242 2243 case KERN_PROC_PID: 2244 /* could do this with just a lookup */ 2245 if (p->p_pid != (pid_t)arg) 2246 continue; 2247 break; 2248 2249 case KERN_PROC_PGRP: 2250 /* could do this by traversing pgrp */ 2251 if (p->p_pgrp->pg_id != (pid_t)arg) 2252 continue; 2253 break; 2254 2255 case KERN_PROC_SESSION: 2256 if (p->p_session->s_sid != (pid_t)arg) 2257 continue; 2258 break; 2259 2260 case KERN_PROC_TTY: 2261 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2262 if ((p->p_flag & P_CONTROLT) == 0 || 2263 p->p_session->s_ttyp == NULL || 2264 p->p_session->s_ttyvp != NULL) 2265 continue; 2266 } else if ((p->p_flag & P_CONTROLT) == 0 || 2267 p->p_session->s_ttyp == NULL) { 2268 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2269 continue; 2270 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2271 continue; 2272 break; 2273 2274 case KERN_PROC_UID: 2275 if (p->p_ucred->cr_uid != (uid_t)arg) 2276 continue; 2277 break; 2278 2279 case KERN_PROC_RUID: 2280 if (p->p_cred->p_ruid != (uid_t)arg) 2281 continue; 2282 break; 2283 2284 case KERN_PROC_GID: 2285 if (p->p_ucred->cr_gid != (uid_t)arg) 2286 continue; 2287 break; 2288 2289 case KERN_PROC_RGID: 2290 if (p->p_cred->p_rgid != (uid_t)arg) 2291 continue; 2292 break; 2293 2294 case KERN_PROC_ALL: 2295 /* allow everything */ 2296 break; 2297 2298 default: 2299 error = EINVAL; 2300 goto cleanup; 2301 } 2302 if (type == KERN_PROC) { 2303 if (buflen >= sizeof(struct kinfo_proc)) { 2304 fill_eproc(p, &eproc); 2305 error = copyout(p, &dp->kp_proc, 2306 sizeof(struct proc)); 2307 if (error) 2308 goto cleanup; 2309 error = copyout(&eproc, &dp->kp_eproc, 2310 sizeof(eproc)); 2311 if (error) 2312 goto cleanup; 2313 dp++; 2314 buflen -= sizeof(struct kinfo_proc); 2315 } 2316 needed += sizeof(struct kinfo_proc); 2317 } else { /* KERN_PROC2 */ 2318 if (buflen >= elem_size && elem_count > 0) { 2319 fill_kproc2(p, &kproc2); 2320 /* 2321 * Copy out elem_size, but not larger than 2322 * the size of a struct kinfo_proc2. 2323 */ 2324 error = copyout(&kproc2, dp2, 2325 min(sizeof(kproc2), elem_size)); 2326 if (error) 2327 goto cleanup; 2328 dp2 += elem_size; 2329 buflen -= elem_size; 2330 elem_count--; 2331 } 2332 needed += elem_size; 2333 } 2334 } 2335 pd++; 2336 if (pd->pd_list != NULL) 2337 goto again; 2338 proclist_unlock_read(); 2339 2340 if (where != NULL) { 2341 if (type == KERN_PROC) 2342 *oldlenp = (char *)dp - where; 2343 else 2344 *oldlenp = dp2 - where; 2345 if (needed > *oldlenp) 2346 return (ENOMEM); 2347 } else { 2348 needed += KERN_PROCSLOP; 2349 *oldlenp = needed; 2350 } 2351 return (0); 2352 cleanup: 2353 proclist_unlock_read(); 2354 return (error); 2355 } 2356 2357 /* 2358 * sysctl helper routine for kern.proc_args pseudo-subtree. 2359 */ 2360 static int 2361 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2362 { 2363 struct ps_strings pss; 2364 struct proc *p, *up = l->l_proc; 2365 size_t len, upper_bound, xlen, i; 2366 struct uio auio; 2367 struct iovec aiov; 2368 vaddr_t argv; 2369 pid_t pid; 2370 int nargv, type, error; 2371 char *arg; 2372 char *tmp; 2373 struct vmspace *vmspace; 2374 vaddr_t psstr_addr; 2375 vaddr_t offsetn; 2376 vaddr_t offsetv; 2377 2378 if (namelen == 1 && name[0] == CTL_QUERY) 2379 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2380 2381 if (newp != NULL || namelen != 2) 2382 return (EINVAL); 2383 pid = name[0]; 2384 type = name[1]; 2385 2386 switch (type) { 2387 case KERN_PROC_ARGV: 2388 case KERN_PROC_NARGV: 2389 case KERN_PROC_ENV: 2390 case KERN_PROC_NENV: 2391 /* ok */ 2392 break; 2393 default: 2394 return (EINVAL); 2395 } 2396 2397 proclist_lock_read(); 2398 2399 /* check pid */ 2400 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2401 error = EINVAL; 2402 goto out_locked; 2403 } 2404 2405 if (CURTAIN(l->l_proc->p_ucred->cr_uid, p->p_ucred->cr_uid)) { 2406 error = EPERM; 2407 goto out_locked; 2408 } 2409 2410 /* only root or same user change look at the environment */ 2411 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2412 if (up->p_ucred->cr_uid != 0) { 2413 if (up->p_cred->p_ruid != p->p_cred->p_ruid || 2414 up->p_cred->p_ruid != p->p_cred->p_svuid) { 2415 error = EPERM; 2416 goto out_locked; 2417 } 2418 } 2419 } 2420 2421 if (oldp == NULL) { 2422 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2423 *oldlenp = sizeof (int); 2424 else 2425 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2426 error = 0; 2427 goto out_locked; 2428 } 2429 2430 /* 2431 * Zombies don't have a stack, so we can't read their psstrings. 2432 * System processes also don't have a user stack. 2433 */ 2434 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) { 2435 error = EINVAL; 2436 goto out_locked; 2437 } 2438 2439 /* 2440 * Lock the process down in memory. 2441 */ 2442 /* XXXCDC: how should locking work here? */ 2443 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2444 error = EFAULT; 2445 goto out_locked; 2446 } 2447 2448 psstr_addr = (vaddr_t)p->p_psstr; 2449 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2450 offsetn = p->p_psnargv; 2451 offsetv = p->p_psargv; 2452 } else { 2453 offsetn = p->p_psnenv; 2454 offsetv = p->p_psenv; 2455 } 2456 vmspace = p->p_vmspace; 2457 vmspace->vm_refcnt++; /* XXX */ 2458 2459 proclist_unlock_read(); 2460 2461 /* 2462 * Allocate a temporary buffer to hold the arguments. 2463 */ 2464 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2465 2466 /* 2467 * Read in the ps_strings structure. 2468 */ 2469 aiov.iov_base = &pss; 2470 aiov.iov_len = sizeof(pss); 2471 auio.uio_iov = &aiov; 2472 auio.uio_iovcnt = 1; 2473 auio.uio_offset = psstr_addr; 2474 auio.uio_resid = sizeof(pss); 2475 auio.uio_rw = UIO_READ; 2476 UIO_SETUP_SYSSPACE(&auio); 2477 error = uvm_io(&vmspace->vm_map, &auio); 2478 if (error) 2479 goto done; 2480 2481 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2482 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2483 error = copyout(&nargv, oldp, sizeof(nargv)); 2484 *oldlenp = sizeof(nargv); 2485 goto done; 2486 } 2487 /* 2488 * Now read the address of the argument vector. 2489 */ 2490 switch (type) { 2491 case KERN_PROC_ARGV: 2492 /* XXX compat32 stuff here */ 2493 /* FALLTHROUGH */ 2494 case KERN_PROC_ENV: 2495 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2496 break; 2497 default: 2498 return (EINVAL); 2499 } 2500 auio.uio_offset = (off_t)(unsigned long)tmp; 2501 aiov.iov_base = &argv; 2502 aiov.iov_len = sizeof(argv); 2503 auio.uio_iov = &aiov; 2504 auio.uio_iovcnt = 1; 2505 auio.uio_resid = sizeof(argv); 2506 auio.uio_rw = UIO_READ; 2507 UIO_SETUP_SYSSPACE(&auio); 2508 error = uvm_io(&vmspace->vm_map, &auio); 2509 if (error) 2510 goto done; 2511 2512 /* 2513 * Now copy in the actual argument vector, one page at a time, 2514 * since we don't know how long the vector is (though, we do 2515 * know how many NUL-terminated strings are in the vector). 2516 */ 2517 len = 0; 2518 upper_bound = *oldlenp; 2519 for (; nargv != 0 && len < upper_bound; len += xlen) { 2520 aiov.iov_base = arg; 2521 aiov.iov_len = PAGE_SIZE; 2522 auio.uio_iov = &aiov; 2523 auio.uio_iovcnt = 1; 2524 auio.uio_offset = argv + len; 2525 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2526 auio.uio_resid = xlen; 2527 auio.uio_rw = UIO_READ; 2528 UIO_SETUP_SYSSPACE(&auio); 2529 error = uvm_io(&vmspace->vm_map, &auio); 2530 if (error) 2531 goto done; 2532 2533 for (i = 0; i < xlen && nargv != 0; i++) { 2534 if (arg[i] == '\0') 2535 nargv--; /* one full string */ 2536 } 2537 2538 /* 2539 * Make sure we don't copyout past the end of the user's 2540 * buffer. 2541 */ 2542 if (len + i > upper_bound) 2543 i = upper_bound - len; 2544 2545 error = copyout(arg, (char *)oldp + len, i); 2546 if (error) 2547 break; 2548 2549 if (nargv == 0) { 2550 len += i; 2551 break; 2552 } 2553 } 2554 *oldlenp = len; 2555 2556 done: 2557 uvmspace_free(vmspace); 2558 2559 free(arg, M_TEMP); 2560 return error; 2561 2562 out_locked: 2563 proclist_unlock_read(); 2564 return error; 2565 } 2566 2567 /* 2568 * Sysctl helper routine for Verified Exec. 2569 */ 2570 #ifdef VERIFIED_EXEC 2571 static int 2572 sysctl_kern_veriexec(SYSCTLFN_ARGS) 2573 { 2574 int newval, error; 2575 int *var = NULL, raise_only = 0; 2576 struct sysctlnode node; 2577 2578 node = *rnode; 2579 2580 switch (rnode->sysctl_num) { 2581 case VERIEXEC_STRICT: 2582 raise_only = 1; 2583 var = &veriexec_strict; 2584 break; 2585 case VERIEXEC_ALGORITHMS: 2586 node.sysctl_data = veriexec_fp_names; 2587 node.sysctl_size = strlen(veriexec_fp_names) + 1; 2588 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2589 default: 2590 return (EINVAL); 2591 } 2592 2593 newval = *var; 2594 2595 node.sysctl_data = &newval; 2596 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2597 if (error || newp == NULL) { 2598 return (error); 2599 } 2600 2601 if (raise_only && (newval < *var)) 2602 return (EPERM); 2603 2604 *var = newval; 2605 2606 return (error); 2607 } 2608 #endif /* VERIFIED_EXEC */ 2609 2610 static int 2611 sysctl_security_setidcore(SYSCTLFN_ARGS) 2612 { 2613 int newsize, error; 2614 struct sysctlnode node; 2615 2616 node = *rnode; 2617 node.sysctl_data = &newsize; 2618 newsize = *(int *)rnode->sysctl_data; 2619 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2620 if (error || newp == NULL) 2621 return error; 2622 2623 if (securelevel > 0) 2624 return (EPERM); 2625 2626 *(int *)rnode->sysctl_data = newsize; 2627 2628 return 0; 2629 } 2630 2631 static int 2632 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2633 { 2634 int error; 2635 char newsetidcorename[MAXPATHLEN]; 2636 struct sysctlnode node; 2637 2638 node = *rnode; 2639 node.sysctl_data = &newsetidcorename[0]; 2640 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2641 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2642 if (error || newp == NULL) 2643 return (error); 2644 2645 if (securelevel > 0) 2646 return (EPERM); 2647 2648 if (strlen(newsetidcorename) == 0) 2649 return (EINVAL); 2650 2651 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2652 2653 return (0); 2654 } 2655 2656 /* 2657 * sysctl helper routine for kern.cp_id node. maps cpus to their 2658 * cpuids. 2659 */ 2660 static int 2661 sysctl_kern_cpid(SYSCTLFN_ARGS) 2662 { 2663 struct sysctlnode node = *rnode; 2664 2665 #ifndef MULTIPROCESSOR 2666 uint64_t id; 2667 2668 if (namelen == 1) { 2669 if (name[0] != 0) 2670 return (ENOENT); 2671 /* 2672 * you're allowed to ask for the zero'th processor 2673 */ 2674 name++; 2675 namelen--; 2676 } 2677 node.sysctl_data = &id; 2678 node.sysctl_size = sizeof(id); 2679 id = cpu_number(); 2680 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2681 2682 #else /* MULTIPROCESSOR */ 2683 uint64_t *cp_id = NULL; 2684 int error, n = sysctl_ncpus(); 2685 struct cpu_info *ci; 2686 CPU_INFO_ITERATOR cii; 2687 2688 /* 2689 * here you may either retrieve a single cpu id or the whole 2690 * set. the size you get back when probing depends on what 2691 * you ask for. 2692 */ 2693 switch (namelen) { 2694 case 0: 2695 node.sysctl_size = n * sizeof(uint64_t); 2696 n = -2; /* ALL */ 2697 break; 2698 case 1: 2699 if (name[0] < 0 || name[0] >= n) 2700 return (ENOENT); /* ENOSUCHPROCESSOR */ 2701 node.sysctl_size = sizeof(uint64_t); 2702 n = name[0]; 2703 /* 2704 * adjust these so that sysctl_lookup() will be happy 2705 */ 2706 name++; 2707 namelen--; 2708 break; 2709 default: 2710 return (EINVAL); 2711 } 2712 2713 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2714 if (cp_id == NULL) 2715 return (ENOMEM); 2716 node.sysctl_data = cp_id; 2717 memset(cp_id, 0, node.sysctl_size); 2718 2719 for (CPU_INFO_FOREACH(cii, ci)) { 2720 if (n <= 0) 2721 cp_id[0] = ci->ci_cpuid; 2722 /* 2723 * if a specific processor was requested and we just 2724 * did it, we're done here 2725 */ 2726 if (n == 0) 2727 break; 2728 /* 2729 * if doing "all", skip to next cp_id slot for next processor 2730 */ 2731 if (n == -2) 2732 cp_id++; 2733 /* 2734 * if we're doing a specific processor, we're one 2735 * processor closer 2736 */ 2737 if (n > 0) 2738 n--; 2739 } 2740 2741 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2742 free(node.sysctl_data, M_TEMP); 2743 return (error); 2744 2745 #endif /* MULTIPROCESSOR */ 2746 } 2747 2748 /* 2749 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2750 * calculate on the fly taking into account integer overflow and the 2751 * current wired count. 2752 */ 2753 static int 2754 sysctl_hw_usermem(SYSCTLFN_ARGS) 2755 { 2756 u_int ui; 2757 u_quad_t uq; 2758 struct sysctlnode node; 2759 2760 node = *rnode; 2761 switch (rnode->sysctl_num) { 2762 case HW_USERMEM: 2763 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2764 ui = UINT_MAX; 2765 else 2766 ui *= PAGE_SIZE; 2767 node.sysctl_data = &ui; 2768 break; 2769 case HW_USERMEM64: 2770 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2771 node.sysctl_data = &uq; 2772 break; 2773 default: 2774 return (EINVAL); 2775 } 2776 2777 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2778 } 2779 2780 /* 2781 * sysctl helper routine for kern.cnmagic node. pulls the old value 2782 * out, encoded, and stuffs the new value in for decoding. 2783 */ 2784 static int 2785 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2786 { 2787 char magic[CNS_LEN]; 2788 int error; 2789 struct sysctlnode node; 2790 2791 if (oldp) 2792 cn_get_magic(magic, CNS_LEN); 2793 node = *rnode; 2794 node.sysctl_data = &magic[0]; 2795 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2796 if (error || newp == NULL) 2797 return (error); 2798 2799 return (cn_set_magic(magic)); 2800 } 2801 2802 static int 2803 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2804 { 2805 int ncpu; 2806 struct sysctlnode node; 2807 2808 ncpu = sysctl_ncpus(); 2809 node = *rnode; 2810 node.sysctl_data = &ncpu; 2811 2812 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2813 } 2814 2815 2816 /* 2817 * ******************************************************************** 2818 * section 3: public helper routines that are used for more than one 2819 * node 2820 * ******************************************************************** 2821 */ 2822 2823 /* 2824 * sysctl helper routine for the kern.root_device node and some ports' 2825 * machdep.root_device nodes. 2826 */ 2827 int 2828 sysctl_root_device(SYSCTLFN_ARGS) 2829 { 2830 struct sysctlnode node; 2831 2832 node = *rnode; 2833 node.sysctl_data = root_device->dv_xname; 2834 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2835 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2836 } 2837 2838 /* 2839 * sysctl helper routine for kern.consdev, dependent on the current 2840 * state of the console. also used for machdep.console_device on some 2841 * ports. 2842 */ 2843 int 2844 sysctl_consdev(SYSCTLFN_ARGS) 2845 { 2846 dev_t consdev; 2847 struct sysctlnode node; 2848 2849 if (cn_tab != NULL) 2850 consdev = cn_tab->cn_dev; 2851 else 2852 consdev = NODEV; 2853 node = *rnode; 2854 node.sysctl_data = &consdev; 2855 node.sysctl_size = sizeof(consdev); 2856 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2857 } 2858 2859 /* 2860 * ******************************************************************** 2861 * section 4: support for some helpers 2862 * ******************************************************************** 2863 */ 2864 2865 /* 2866 * Fill in a kinfo_proc2 structure for the specified process. 2867 */ 2868 static void 2869 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2870 { 2871 struct tty *tp; 2872 struct lwp *l; 2873 struct timeval ut, st; 2874 2875 memset(ki, 0, sizeof(*ki)); 2876 2877 ki->p_paddr = PTRTOUINT64(p); 2878 ki->p_fd = PTRTOUINT64(p->p_fd); 2879 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2880 ki->p_stats = PTRTOUINT64(p->p_stats); 2881 ki->p_limit = PTRTOUINT64(p->p_limit); 2882 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2883 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2884 ki->p_sess = PTRTOUINT64(p->p_session); 2885 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2886 ki->p_ru = PTRTOUINT64(p->p_ru); 2887 2888 ki->p_eflag = 0; 2889 ki->p_exitsig = p->p_exitsig; 2890 ki->p_flag = p->p_flag; 2891 2892 ki->p_pid = p->p_pid; 2893 if (p->p_pptr) 2894 ki->p_ppid = p->p_pptr->p_pid; 2895 else 2896 ki->p_ppid = 0; 2897 ki->p_sid = p->p_session->s_sid; 2898 ki->p__pgid = p->p_pgrp->pg_id; 2899 2900 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2901 2902 ki->p_uid = p->p_ucred->cr_uid; 2903 ki->p_ruid = p->p_cred->p_ruid; 2904 ki->p_gid = p->p_ucred->cr_gid; 2905 ki->p_rgid = p->p_cred->p_rgid; 2906 ki->p_svuid = p->p_cred->p_svuid; 2907 ki->p_svgid = p->p_cred->p_svgid; 2908 2909 memcpy(ki->p_groups, p->p_cred->pc_ucred->cr_groups, 2910 min(sizeof(ki->p_groups), sizeof(p->p_cred->pc_ucred->cr_groups))); 2911 ki->p_ngroups = p->p_cred->pc_ucred->cr_ngroups; 2912 2913 ki->p_jobc = p->p_pgrp->pg_jobc; 2914 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2915 ki->p_tdev = tp->t_dev; 2916 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2917 ki->p_tsess = PTRTOUINT64(tp->t_session); 2918 } else { 2919 ki->p_tdev = NODEV; 2920 } 2921 2922 ki->p_estcpu = p->p_estcpu; 2923 ki->p_rtime_sec = p->p_rtime.tv_sec; 2924 ki->p_rtime_usec = p->p_rtime.tv_usec; 2925 ki->p_cpticks = p->p_cpticks; 2926 ki->p_pctcpu = p->p_pctcpu; 2927 2928 ki->p_uticks = p->p_uticks; 2929 ki->p_sticks = p->p_sticks; 2930 ki->p_iticks = p->p_iticks; 2931 2932 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2933 ki->p_traceflag = p->p_traceflag; 2934 2935 2936 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2937 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2938 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2939 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2940 2941 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2942 ki->p_realstat = p->p_stat; 2943 ki->p_nice = p->p_nice; 2944 2945 ki->p_xstat = p->p_xstat; 2946 ki->p_acflag = p->p_acflag; 2947 2948 strncpy(ki->p_comm, p->p_comm, 2949 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2950 2951 strncpy(ki->p_login, p->p_session->s_login, 2952 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2953 2954 ki->p_nlwps = p->p_nlwps; 2955 ki->p_nrlwps = p->p_nrlwps; 2956 ki->p_realflag = p->p_flag; 2957 2958 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2959 ki->p_vm_rssize = 0; 2960 ki->p_vm_tsize = 0; 2961 ki->p_vm_dsize = 0; 2962 ki->p_vm_ssize = 0; 2963 l = NULL; 2964 } else { 2965 struct vmspace *vm = p->p_vmspace; 2966 2967 ki->p_vm_rssize = vm_resident_count(vm); 2968 ki->p_vm_tsize = vm->vm_tsize; 2969 ki->p_vm_dsize = vm->vm_dsize; 2970 ki->p_vm_ssize = vm->vm_ssize; 2971 2972 /* Pick a "representative" LWP */ 2973 l = proc_representative_lwp(p); 2974 ki->p_forw = PTRTOUINT64(l->l_forw); 2975 ki->p_back = PTRTOUINT64(l->l_back); 2976 ki->p_addr = PTRTOUINT64(l->l_addr); 2977 ki->p_stat = l->l_stat; 2978 ki->p_flag |= l->l_flag; 2979 ki->p_swtime = l->l_swtime; 2980 ki->p_slptime = l->l_slptime; 2981 if (l->l_stat == LSONPROC) { 2982 KDASSERT(l->l_cpu != NULL); 2983 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2984 } else 2985 ki->p_schedflags = 0; 2986 ki->p_holdcnt = l->l_holdcnt; 2987 ki->p_priority = l->l_priority; 2988 ki->p_usrpri = l->l_usrpri; 2989 if (l->l_wmesg) 2990 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2991 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2992 2993 } 2994 2995 if (p->p_session->s_ttyvp) 2996 ki->p_eflag |= EPROC_CTTY; 2997 if (SESS_LEADER(p)) 2998 ki->p_eflag |= EPROC_SLEADER; 2999 3000 /* XXX Is this double check necessary? */ 3001 if (P_ZOMBIE(p)) { 3002 ki->p_uvalid = 0; 3003 } else { 3004 ki->p_uvalid = 1; 3005 3006 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 3007 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 3008 3009 calcru(p, &ut, &st, 0); 3010 ki->p_uutime_sec = ut.tv_sec; 3011 ki->p_uutime_usec = ut.tv_usec; 3012 ki->p_ustime_sec = st.tv_sec; 3013 ki->p_ustime_usec = st.tv_usec; 3014 3015 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 3016 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 3017 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 3018 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 3019 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 3020 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 3021 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 3022 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 3023 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 3024 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 3025 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 3026 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 3027 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 3028 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 3029 3030 timeradd(&p->p_stats->p_cru.ru_utime, 3031 &p->p_stats->p_cru.ru_stime, &ut); 3032 ki->p_uctime_sec = ut.tv_sec; 3033 ki->p_uctime_usec = ut.tv_usec; 3034 } 3035 #ifdef MULTIPROCESSOR 3036 if (l && l->l_cpu != NULL) 3037 ki->p_cpuid = l->l_cpu->ci_cpuid; 3038 else 3039 #endif 3040 ki->p_cpuid = KI_NOCPU; 3041 } 3042 3043 /* 3044 * Fill in a kinfo_lwp structure for the specified lwp. 3045 */ 3046 static void 3047 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3048 { 3049 3050 kl->l_forw = PTRTOUINT64(l->l_forw); 3051 kl->l_back = PTRTOUINT64(l->l_back); 3052 kl->l_laddr = PTRTOUINT64(l); 3053 kl->l_addr = PTRTOUINT64(l->l_addr); 3054 kl->l_stat = l->l_stat; 3055 kl->l_lid = l->l_lid; 3056 kl->l_flag = l->l_flag; 3057 3058 kl->l_swtime = l->l_swtime; 3059 kl->l_slptime = l->l_slptime; 3060 if (l->l_stat == LSONPROC) { 3061 KDASSERT(l->l_cpu != NULL); 3062 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3063 } else 3064 kl->l_schedflags = 0; 3065 kl->l_holdcnt = l->l_holdcnt; 3066 kl->l_priority = l->l_priority; 3067 kl->l_usrpri = l->l_usrpri; 3068 if (l->l_wmesg) 3069 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3070 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3071 #ifdef MULTIPROCESSOR 3072 if (l->l_cpu != NULL) 3073 kl->l_cpuid = l->l_cpu->ci_cpuid; 3074 else 3075 #endif 3076 kl->l_cpuid = KI_NOCPU; 3077 } 3078 3079 /* 3080 * Fill in an eproc structure for the specified process. 3081 */ 3082 void 3083 fill_eproc(struct proc *p, struct eproc *ep) 3084 { 3085 struct tty *tp; 3086 struct lwp *l; 3087 3088 ep->e_paddr = p; 3089 ep->e_sess = p->p_session; 3090 ep->e_pcred = *p->p_cred; 3091 ep->e_ucred = *p->p_ucred; 3092 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 3093 ep->e_vm.vm_rssize = 0; 3094 ep->e_vm.vm_tsize = 0; 3095 ep->e_vm.vm_dsize = 0; 3096 ep->e_vm.vm_ssize = 0; 3097 /* ep->e_vm.vm_pmap = XXX; */ 3098 } else { 3099 struct vmspace *vm = p->p_vmspace; 3100 3101 ep->e_vm.vm_rssize = vm_resident_count(vm); 3102 ep->e_vm.vm_tsize = vm->vm_tsize; 3103 ep->e_vm.vm_dsize = vm->vm_dsize; 3104 ep->e_vm.vm_ssize = vm->vm_ssize; 3105 3106 /* Pick a "representative" LWP */ 3107 l = proc_representative_lwp(p); 3108 3109 if (l->l_wmesg) 3110 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3111 } 3112 if (p->p_pptr) 3113 ep->e_ppid = p->p_pptr->p_pid; 3114 else 3115 ep->e_ppid = 0; 3116 ep->e_pgid = p->p_pgrp->pg_id; 3117 ep->e_sid = ep->e_sess->s_sid; 3118 ep->e_jobc = p->p_pgrp->pg_jobc; 3119 if ((p->p_flag & P_CONTROLT) && 3120 (tp = ep->e_sess->s_ttyp)) { 3121 ep->e_tdev = tp->t_dev; 3122 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3123 ep->e_tsess = tp->t_session; 3124 } else 3125 ep->e_tdev = NODEV; 3126 3127 ep->e_xsize = ep->e_xrssize = 0; 3128 ep->e_xccount = ep->e_xswrss = 0; 3129 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3130 if (SESS_LEADER(p)) 3131 ep->e_flag |= EPROC_SLEADER; 3132 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3133 } 3134
Indexes created Sun Sep 21 20:09:37 GMT 2025