init_sysctl.c revision 1.98
1 /* $NetBSD: init_sysctl.c,v 1.98 2007/03/09 14:11:23 ad 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 1.98 2007/03/09 14:11:23 ad Exp $"); 41 42 #include "opt_sysv.h" 43 #include "opt_multiprocessor.h" 44 #include "opt_posix.h" 45 #include "opt_compat_netbsd32.h" 46 #include "opt_ktrace.h" 47 #include "pty.h" 48 #include "rnd.h" 49 50 #include <sys/types.h> 51 #include <sys/param.h> 52 #include <sys/sysctl.h> 53 #include <sys/errno.h> 54 #include <sys/systm.h> 55 #include <sys/kernel.h> 56 #include <sys/unistd.h> 57 #include <sys/disklabel.h> 58 #include <sys/rnd.h> 59 #include <sys/vnode.h> 60 #include <sys/mount.h> 61 #include <sys/namei.h> 62 #include <sys/msgbuf.h> 63 #include <dev/cons.h> 64 #include <sys/socketvar.h> 65 #include <sys/file.h> 66 #include <sys/filedesc.h> 67 #include <sys/tty.h> 68 #include <sys/malloc.h> 69 #include <sys/resource.h> 70 #include <sys/resourcevar.h> 71 #include <sys/exec.h> 72 #include <sys/conf.h> 73 #include <sys/device.h> 74 #include <sys/stat.h> 75 #include <sys/kauth.h> 76 #ifdef KTRACE 77 #include <sys/ktrace.h> 78 #endif 79 80 #ifdef COMPAT_NETBSD32 81 #include <compat/netbsd32/netbsd32.h> 82 #endif 83 84 #include <machine/cpu.h> 85 86 /* XXX this should not be here */ 87 int security_setidcore_dump; 88 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 89 uid_t security_setidcore_owner = 0; 90 gid_t security_setidcore_group = 0; 91 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 92 93 static const u_int sysctl_flagmap[] = { 94 PK_ADVLOCK, P_ADVLOCK, 95 PK_EXEC, P_EXEC, 96 PK_NOCLDWAIT, P_NOCLDWAIT, 97 PK_32, P_32, 98 PK_CLDSIGIGN, P_CLDSIGIGN, 99 PK_PAXMPROTECT, P_PAXMPROTECT, 100 PK_PAXNOMPROTECT, P_PAXNOMPROTECT, 101 PK_SYSTRACE, P_SYSTRACE, 102 PK_SUGID, P_SUGID, 103 0 104 }; 105 106 static const u_int sysctl_sflagmap[] = { 107 PS_NOCLDSTOP, P_NOCLDSTOP, 108 PS_PPWAIT, P_PPWAIT, 109 PS_WEXIT, P_WEXIT, 110 PS_STOPFORK, P_STOPFORK, 111 PS_STOPEXEC, P_STOPEXEC, 112 PS_STOPEXIT, P_STOPEXIT, 113 0 114 }; 115 116 static const u_int sysctl_slflagmap[] = { 117 PSL_TRACED, P_TRACED, 118 PSL_FSTRACE, P_FSTRACE, 119 PSL_CHTRACED, P_CHTRACED, 120 PSL_SYSCALL, P_SYSCALL, 121 0 122 }; 123 124 static const u_int sysctl_lflagmap[] = { 125 PL_CONTROLT, P_CONTROLT, 126 0 127 }; 128 129 static const u_int sysctl_stflagmap[] = { 130 PST_PROFIL, P_PROFIL, 131 0 132 133 }; 134 135 static const u_int sysctl_lwpflagmap[] = { 136 LW_INMEM, P_INMEM, 137 LW_SELECT, P_SELECT, 138 LW_SINTR, P_SINTR, 139 LW_SYSTEM, P_SYSTEM, 140 0 141 }; 142 143 static const u_int sysctl_lwpprflagmap[] = { 144 LPR_DETACHED, L_DETACHED, 145 0 146 }; 147 148 149 /* 150 * try over estimating by 5 procs/lwps 151 */ 152 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 153 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 154 155 #ifdef KTRACE 156 int dcopyout(struct lwp *, const void *, void *, size_t); 157 158 int 159 dcopyout(l, kaddr, uaddr, len) 160 struct lwp *l; 161 const void *kaddr; 162 void *uaddr; 163 size_t len; 164 { 165 int error; 166 167 error = copyout(kaddr, uaddr, len); 168 if (!error && KTRPOINT(l->l_proc, KTR_MIB)) { 169 struct iovec iov; 170 171 iov.iov_base = uaddr; 172 iov.iov_len = len; 173 ktrgenio(l, -1, UIO_READ, &iov, len, 0); 174 } 175 return error; 176 } 177 #else /* !KTRACE */ 178 #define dcopyout(l, kaddr, uaddr, len) copyout(kaddr, uaddr, len) 179 #endif /* KTRACE */ 180 181 #ifndef CPU_INFO_FOREACH 182 #define CPU_INFO_ITERATOR int 183 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 184 #endif 185 186 #ifdef DIAGNOSTIC 187 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 188 #endif 189 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 190 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 191 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 192 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 193 static int sysctl_setlen(SYSCTLFN_PROTO); 194 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 195 static int sysctl_kern_file(SYSCTLFN_PROTO); 196 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 197 static int sysctl_msgbuf(SYSCTLFN_PROTO); 198 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 199 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 200 #if NPTY > 0 201 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 202 #endif /* NPTY > 0 */ 203 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 204 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 205 static int sysctl_kern_arnd(SYSCTLFN_PROTO); 206 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 207 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 208 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 209 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 210 static int sysctl_kern_file2(SYSCTLFN_PROTO); 211 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 212 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 213 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 214 static int sysctl_doeproc(SYSCTLFN_PROTO); 215 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 216 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 217 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 218 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 219 220 static u_int sysctl_map_flags(const u_int *, u_int); 221 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 222 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 223 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 224 int); 225 226 /* 227 * ******************************************************************** 228 * section 1: setup routines 229 * ******************************************************************** 230 * these functions are stuffed into a link set for sysctl setup 231 * functions. they're never called or referenced from anywhere else. 232 * ******************************************************************** 233 */ 234 235 /* 236 * sets up the base nodes... 237 */ 238 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 239 { 240 241 sysctl_createv(clog, 0, NULL, NULL, 242 CTLFLAG_PERMANENT, 243 CTLTYPE_NODE, "kern", 244 SYSCTL_DESCR("High kernel"), 245 NULL, 0, NULL, 0, 246 CTL_KERN, CTL_EOL); 247 sysctl_createv(clog, 0, NULL, NULL, 248 CTLFLAG_PERMANENT, 249 CTLTYPE_NODE, "vm", 250 SYSCTL_DESCR("Virtual memory"), 251 NULL, 0, NULL, 0, 252 CTL_VM, CTL_EOL); 253 sysctl_createv(clog, 0, NULL, NULL, 254 CTLFLAG_PERMANENT, 255 CTLTYPE_NODE, "vfs", 256 SYSCTL_DESCR("Filesystem"), 257 NULL, 0, NULL, 0, 258 CTL_VFS, CTL_EOL); 259 sysctl_createv(clog, 0, NULL, NULL, 260 CTLFLAG_PERMANENT, 261 CTLTYPE_NODE, "net", 262 SYSCTL_DESCR("Networking"), 263 NULL, 0, NULL, 0, 264 CTL_NET, CTL_EOL); 265 sysctl_createv(clog, 0, NULL, NULL, 266 CTLFLAG_PERMANENT, 267 CTLTYPE_NODE, "debug", 268 SYSCTL_DESCR("Debugging"), 269 NULL, 0, NULL, 0, 270 CTL_DEBUG, CTL_EOL); 271 sysctl_createv(clog, 0, NULL, NULL, 272 CTLFLAG_PERMANENT, 273 CTLTYPE_NODE, "hw", 274 SYSCTL_DESCR("Generic CPU, I/O"), 275 NULL, 0, NULL, 0, 276 CTL_HW, CTL_EOL); 277 sysctl_createv(clog, 0, NULL, NULL, 278 CTLFLAG_PERMANENT, 279 CTLTYPE_NODE, "machdep", 280 SYSCTL_DESCR("Machine dependent"), 281 NULL, 0, NULL, 0, 282 CTL_MACHDEP, CTL_EOL); 283 /* 284 * this node is inserted so that the sysctl nodes in libc can 285 * operate. 286 */ 287 sysctl_createv(clog, 0, NULL, NULL, 288 CTLFLAG_PERMANENT, 289 CTLTYPE_NODE, "user", 290 SYSCTL_DESCR("User-level"), 291 NULL, 0, NULL, 0, 292 CTL_USER, CTL_EOL); 293 sysctl_createv(clog, 0, NULL, NULL, 294 CTLFLAG_PERMANENT, 295 CTLTYPE_NODE, "ddb", 296 SYSCTL_DESCR("In-kernel debugger"), 297 NULL, 0, NULL, 0, 298 CTL_DDB, CTL_EOL); 299 sysctl_createv(clog, 0, NULL, NULL, 300 CTLFLAG_PERMANENT, 301 CTLTYPE_NODE, "proc", 302 SYSCTL_DESCR("Per-process"), 303 NULL, 0, NULL, 0, 304 CTL_PROC, CTL_EOL); 305 sysctl_createv(clog, 0, NULL, NULL, 306 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 307 CTLTYPE_NODE, "vendor", 308 SYSCTL_DESCR("Vendor specific"), 309 NULL, 0, NULL, 0, 310 CTL_VENDOR, CTL_EOL); 311 sysctl_createv(clog, 0, NULL, NULL, 312 CTLFLAG_PERMANENT, 313 CTLTYPE_NODE, "emul", 314 SYSCTL_DESCR("Emulation settings"), 315 NULL, 0, NULL, 0, 316 CTL_EMUL, CTL_EOL); 317 sysctl_createv(clog, 0, NULL, NULL, 318 CTLFLAG_PERMANENT, 319 CTLTYPE_NODE, "security", 320 SYSCTL_DESCR("Security"), 321 NULL, 0, NULL, 0, 322 CTL_SECURITY, CTL_EOL); 323 } 324 325 /* 326 * this setup routine is a replacement for kern_sysctl() 327 */ 328 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 329 { 330 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 331 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 332 extern int dumponpanic; /* defined in kern/subr_prf.c */ 333 const struct sysctlnode *rnode; 334 335 sysctl_createv(clog, 0, NULL, NULL, 336 CTLFLAG_PERMANENT, 337 CTLTYPE_NODE, "kern", NULL, 338 NULL, 0, NULL, 0, 339 CTL_KERN, CTL_EOL); 340 341 sysctl_createv(clog, 0, NULL, NULL, 342 CTLFLAG_PERMANENT, 343 CTLTYPE_STRING, "ostype", 344 SYSCTL_DESCR("Operating system type"), 345 NULL, 0, &ostype, 0, 346 CTL_KERN, KERN_OSTYPE, CTL_EOL); 347 sysctl_createv(clog, 0, NULL, NULL, 348 CTLFLAG_PERMANENT, 349 CTLTYPE_STRING, "osrelease", 350 SYSCTL_DESCR("Operating system release"), 351 NULL, 0, &osrelease, 0, 352 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 353 sysctl_createv(clog, 0, NULL, NULL, 354 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 355 CTLTYPE_INT, "osrevision", 356 SYSCTL_DESCR("Operating system revision"), 357 NULL, __NetBSD_Version__, NULL, 0, 358 CTL_KERN, KERN_OSREV, CTL_EOL); 359 sysctl_createv(clog, 0, NULL, NULL, 360 CTLFLAG_PERMANENT, 361 CTLTYPE_STRING, "version", 362 SYSCTL_DESCR("Kernel version"), 363 NULL, 0, &version, 0, 364 CTL_KERN, KERN_VERSION, CTL_EOL); 365 sysctl_createv(clog, 0, NULL, NULL, 366 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 367 CTLTYPE_INT, "maxvnodes", 368 SYSCTL_DESCR("Maximum number of vnodes"), 369 sysctl_kern_maxvnodes, 0, NULL, 0, 370 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 371 sysctl_createv(clog, 0, NULL, NULL, 372 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 373 CTLTYPE_INT, "maxproc", 374 SYSCTL_DESCR("Maximum number of simultaneous processes"), 375 sysctl_kern_maxproc, 0, NULL, 0, 376 CTL_KERN, KERN_MAXPROC, CTL_EOL); 377 sysctl_createv(clog, 0, NULL, NULL, 378 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 379 CTLTYPE_INT, "maxfiles", 380 SYSCTL_DESCR("Maximum number of open files"), 381 NULL, 0, &maxfiles, 0, 382 CTL_KERN, KERN_MAXFILES, CTL_EOL); 383 sysctl_createv(clog, 0, NULL, NULL, 384 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 385 CTLTYPE_INT, "argmax", 386 SYSCTL_DESCR("Maximum number of bytes of arguments to " 387 "execve(2)"), 388 NULL, ARG_MAX, NULL, 0, 389 CTL_KERN, KERN_ARGMAX, CTL_EOL); 390 sysctl_createv(clog, 0, NULL, NULL, 391 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 392 CTLTYPE_STRING, "hostname", 393 SYSCTL_DESCR("System hostname"), 394 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 395 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 396 sysctl_createv(clog, 0, NULL, NULL, 397 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 398 CTLTYPE_INT, "hostid", 399 SYSCTL_DESCR("System host ID number"), 400 sysctl_kern_hostid, 0, NULL, 0, 401 CTL_KERN, KERN_HOSTID, CTL_EOL); 402 sysctl_createv(clog, 0, NULL, NULL, 403 CTLFLAG_PERMANENT, 404 CTLTYPE_STRUCT, "clockrate", 405 SYSCTL_DESCR("Kernel clock rates"), 406 sysctl_kern_clockrate, 0, NULL, 407 sizeof(struct clockinfo), 408 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 409 sysctl_createv(clog, 0, NULL, NULL, 410 CTLFLAG_PERMANENT, 411 CTLTYPE_INT, "hardclock_ticks", 412 SYSCTL_DESCR("Number of hardclock ticks"), 413 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 414 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 415 sysctl_createv(clog, 0, NULL, NULL, 416 CTLFLAG_PERMANENT, 417 CTLTYPE_STRUCT, "vnode", 418 SYSCTL_DESCR("System vnode table"), 419 sysctl_kern_vnode, 0, NULL, 0, 420 CTL_KERN, KERN_VNODE, CTL_EOL); 421 sysctl_createv(clog, 0, NULL, NULL, 422 CTLFLAG_PERMANENT, 423 CTLTYPE_STRUCT, "file", 424 SYSCTL_DESCR("System open file table"), 425 sysctl_kern_file, 0, NULL, 0, 426 CTL_KERN, KERN_FILE, CTL_EOL); 427 #ifndef GPROF 428 sysctl_createv(clog, 0, NULL, NULL, 429 CTLFLAG_PERMANENT, 430 CTLTYPE_NODE, "profiling", 431 SYSCTL_DESCR("Profiling information (not available)"), 432 sysctl_notavail, 0, NULL, 0, 433 CTL_KERN, KERN_PROF, CTL_EOL); 434 #endif 435 sysctl_createv(clog, 0, NULL, NULL, 436 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 437 CTLTYPE_INT, "posix1version", 438 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 439 "with which the operating system attempts " 440 "to comply"), 441 NULL, _POSIX_VERSION, NULL, 0, 442 CTL_KERN, KERN_POSIX1, CTL_EOL); 443 sysctl_createv(clog, 0, NULL, NULL, 444 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 445 CTLTYPE_INT, "ngroups", 446 SYSCTL_DESCR("Maximum number of supplemental groups"), 447 NULL, NGROUPS_MAX, NULL, 0, 448 CTL_KERN, KERN_NGROUPS, CTL_EOL); 449 sysctl_createv(clog, 0, NULL, NULL, 450 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 451 CTLTYPE_INT, "job_control", 452 SYSCTL_DESCR("Whether job control is available"), 453 NULL, 1, NULL, 0, 454 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 455 sysctl_createv(clog, 0, NULL, NULL, 456 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 457 CTLTYPE_INT, "saved_ids", 458 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 459 "available"), NULL, 460 #ifdef _POSIX_SAVED_IDS 461 1, 462 #else /* _POSIX_SAVED_IDS */ 463 0, 464 #endif /* _POSIX_SAVED_IDS */ 465 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 466 sysctl_createv(clog, 0, NULL, NULL, 467 CTLFLAG_PERMANENT, 468 CTLTYPE_STRUCT, "boottime", 469 SYSCTL_DESCR("System boot time"), 470 NULL, 0, &boottime, sizeof(boottime), 471 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 472 sysctl_createv(clog, 0, NULL, NULL, 473 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 474 CTLTYPE_STRING, "domainname", 475 SYSCTL_DESCR("YP domain name"), 476 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 477 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 478 sysctl_createv(clog, 0, NULL, NULL, 479 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 480 CTLTYPE_INT, "maxpartitions", 481 SYSCTL_DESCR("Maximum number of partitions allowed per " 482 "disk"), 483 NULL, MAXPARTITIONS, NULL, 0, 484 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 485 sysctl_createv(clog, 0, NULL, NULL, 486 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 487 CTLTYPE_INT, "rawpartition", 488 SYSCTL_DESCR("Raw partition of a disk"), 489 NULL, RAW_PART, NULL, 0, 490 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 491 sysctl_createv(clog, 0, NULL, NULL, 492 CTLFLAG_PERMANENT, 493 CTLTYPE_STRUCT, "timex", NULL, 494 sysctl_notavail, 0, NULL, 0, 495 CTL_KERN, KERN_TIMEX, CTL_EOL); 496 sysctl_createv(clog, 0, NULL, NULL, 497 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 498 CTLTYPE_INT, "autonicetime", 499 SYSCTL_DESCR("CPU clock seconds before non-root " 500 "process priority is lowered"), 501 sysctl_kern_autonice, 0, &autonicetime, 0, 502 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 503 sysctl_createv(clog, 0, NULL, NULL, 504 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 505 CTLTYPE_INT, "autoniceval", 506 SYSCTL_DESCR("Automatic reniced non-root process " 507 "priority"), 508 sysctl_kern_autonice, 0, &autoniceval, 0, 509 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 510 sysctl_createv(clog, 0, NULL, NULL, 511 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 512 CTLTYPE_INT, "rtc_offset", 513 SYSCTL_DESCR("Offset of real time clock from UTC in " 514 "minutes"), 515 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 516 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 517 sysctl_createv(clog, 0, NULL, NULL, 518 CTLFLAG_PERMANENT, 519 CTLTYPE_STRING, "root_device", 520 SYSCTL_DESCR("Name of the root device"), 521 sysctl_root_device, 0, NULL, 0, 522 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 523 sysctl_createv(clog, 0, NULL, NULL, 524 CTLFLAG_PERMANENT, 525 CTLTYPE_INT, "msgbufsize", 526 SYSCTL_DESCR("Size of the kernel message buffer"), 527 sysctl_msgbuf, 0, NULL, 0, 528 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 529 sysctl_createv(clog, 0, NULL, NULL, 530 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 531 CTLTYPE_INT, "fsync", 532 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 533 "Synchronization Option is available on " 534 "this system"), 535 NULL, 1, NULL, 0, 536 CTL_KERN, KERN_FSYNC, CTL_EOL); 537 sysctl_createv(clog, 0, NULL, NULL, 538 CTLFLAG_PERMANENT, 539 CTLTYPE_NODE, "ipc", 540 SYSCTL_DESCR("SysV IPC options"), 541 NULL, 0, NULL, 0, 542 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 543 sysctl_createv(clog, 0, NULL, NULL, 544 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 545 CTLTYPE_INT, "sysvmsg", 546 SYSCTL_DESCR("System V style message support available"), 547 NULL, 548 #ifdef SYSVMSG 549 1, 550 #else /* SYSVMSG */ 551 0, 552 #endif /* SYSVMSG */ 553 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 554 sysctl_createv(clog, 0, NULL, NULL, 555 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 556 CTLTYPE_INT, "sysvsem", 557 SYSCTL_DESCR("System V style semaphore support " 558 "available"), NULL, 559 #ifdef SYSVSEM 560 1, 561 #else /* SYSVSEM */ 562 0, 563 #endif /* SYSVSEM */ 564 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 565 sysctl_createv(clog, 0, NULL, NULL, 566 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 567 CTLTYPE_INT, "sysvshm", 568 SYSCTL_DESCR("System V style shared memory support " 569 "available"), NULL, 570 #ifdef SYSVSHM 571 1, 572 #else /* SYSVSHM */ 573 0, 574 #endif /* SYSVSHM */ 575 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 576 sysctl_createv(clog, 0, NULL, NULL, 577 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 578 CTLTYPE_INT, "synchronized_io", 579 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 580 "I/O Option is available on this system"), 581 NULL, 1, NULL, 0, 582 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 583 sysctl_createv(clog, 0, NULL, NULL, 584 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 585 CTLTYPE_INT, "iov_max", 586 SYSCTL_DESCR("Maximum number of iovec structures per " 587 "process"), 588 NULL, IOV_MAX, NULL, 0, 589 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 590 sysctl_createv(clog, 0, NULL, NULL, 591 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 592 CTLTYPE_INT, "mapped_files", 593 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 594 "Files Option is available on this system"), 595 NULL, 1, NULL, 0, 596 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 597 sysctl_createv(clog, 0, NULL, NULL, 598 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 599 CTLTYPE_INT, "memlock", 600 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 601 "Locking Option is available on this " 602 "system"), 603 NULL, 1, NULL, 0, 604 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 605 sysctl_createv(clog, 0, NULL, NULL, 606 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 607 CTLTYPE_INT, "memlock_range", 608 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 609 "Locking Option is available on this " 610 "system"), 611 NULL, 1, NULL, 0, 612 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 613 sysctl_createv(clog, 0, NULL, NULL, 614 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 615 CTLTYPE_INT, "memory_protection", 616 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 617 "Protection Option is available on this " 618 "system"), 619 NULL, 1, NULL, 0, 620 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 621 sysctl_createv(clog, 0, NULL, NULL, 622 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 623 CTLTYPE_INT, "login_name_max", 624 SYSCTL_DESCR("Maximum login name length"), 625 NULL, LOGIN_NAME_MAX, NULL, 0, 626 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 627 sysctl_createv(clog, 0, NULL, NULL, 628 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 629 CTLTYPE_STRING, "defcorename", 630 SYSCTL_DESCR("Default core file name"), 631 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 632 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 633 sysctl_createv(clog, 0, NULL, NULL, 634 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 635 CTLTYPE_INT, "logsigexit", 636 SYSCTL_DESCR("Log process exit when caused by signals"), 637 NULL, 0, &kern_logsigexit, 0, 638 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 639 sysctl_createv(clog, 0, NULL, NULL, 640 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 641 CTLTYPE_INT, "fscale", 642 SYSCTL_DESCR("Kernel fixed-point scale factor"), 643 NULL, FSCALE, NULL, 0, 644 CTL_KERN, KERN_FSCALE, CTL_EOL); 645 sysctl_createv(clog, 0, NULL, NULL, 646 CTLFLAG_PERMANENT, 647 CTLTYPE_INT, "ccpu", 648 SYSCTL_DESCR("Scheduler exponential decay value"), 649 NULL, 0, &ccpu, 0, 650 CTL_KERN, KERN_CCPU, CTL_EOL); 651 sysctl_createv(clog, 0, NULL, NULL, 652 CTLFLAG_PERMANENT, 653 CTLTYPE_STRUCT, "cp_time", 654 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 655 sysctl_kern_cptime, 0, NULL, 0, 656 CTL_KERN, KERN_CP_TIME, CTL_EOL); 657 sysctl_createv(clog, 0, NULL, NULL, 658 CTLFLAG_PERMANENT, 659 CTLTYPE_INT, "msgbuf", 660 SYSCTL_DESCR("Kernel message buffer"), 661 sysctl_msgbuf, 0, NULL, 0, 662 CTL_KERN, KERN_MSGBUF, CTL_EOL); 663 sysctl_createv(clog, 0, NULL, NULL, 664 CTLFLAG_PERMANENT, 665 CTLTYPE_STRUCT, "consdev", 666 SYSCTL_DESCR("Console device"), 667 sysctl_consdev, 0, NULL, sizeof(dev_t), 668 CTL_KERN, KERN_CONSDEV, CTL_EOL); 669 #if NPTY > 0 670 sysctl_createv(clog, 0, NULL, NULL, 671 CTLFLAG_PERMANENT, 672 CTLTYPE_INT, "maxptys", 673 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 674 sysctl_kern_maxptys, 0, NULL, 0, 675 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 676 #endif /* NPTY > 0 */ 677 sysctl_createv(clog, 0, NULL, NULL, 678 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 679 CTLTYPE_INT, "maxphys", 680 SYSCTL_DESCR("Maximum raw I/O transfer size"), 681 NULL, MAXPHYS, NULL, 0, 682 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 683 sysctl_createv(clog, 0, NULL, NULL, 684 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 685 CTLTYPE_INT, "sbmax", 686 SYSCTL_DESCR("Maximum socket buffer size"), 687 sysctl_kern_sbmax, 0, NULL, 0, 688 CTL_KERN, KERN_SBMAX, CTL_EOL); 689 sysctl_createv(clog, 0, NULL, NULL, 690 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 691 CTLTYPE_INT, "monotonic_clock", 692 SYSCTL_DESCR("Implementation version of the POSIX " 693 "1003.1b Monotonic Clock Option"), 694 /* XXX _POSIX_VERSION */ 695 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 696 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 697 sysctl_createv(clog, 0, NULL, NULL, 698 CTLFLAG_PERMANENT, 699 CTLTYPE_INT, "urandom", 700 SYSCTL_DESCR("Random integer value"), 701 sysctl_kern_urnd, 0, NULL, 0, 702 CTL_KERN, KERN_URND, CTL_EOL); 703 sysctl_createv(clog, 0, NULL, NULL, 704 CTLFLAG_PERMANENT, 705 CTLTYPE_INT, "arandom", 706 SYSCTL_DESCR("n bytes of random data"), 707 sysctl_kern_arnd, 0, NULL, 0, 708 CTL_KERN, KERN_ARND, CTL_EOL); 709 sysctl_createv(clog, 0, NULL, NULL, 710 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 711 CTLTYPE_INT, "labelsector", 712 SYSCTL_DESCR("Sector number containing the disklabel"), 713 NULL, LABELSECTOR, NULL, 0, 714 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 715 sysctl_createv(clog, 0, NULL, NULL, 716 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 717 CTLTYPE_INT, "labeloffset", 718 SYSCTL_DESCR("Offset of the disklabel within the " 719 "sector"), 720 NULL, LABELOFFSET, NULL, 0, 721 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 722 sysctl_createv(clog, 0, NULL, NULL, 723 CTLFLAG_PERMANENT, 724 CTLTYPE_NODE, "lwp", 725 SYSCTL_DESCR("System-wide LWP information"), 726 sysctl_kern_lwp, 0, NULL, 0, 727 CTL_KERN, KERN_LWP, CTL_EOL); 728 sysctl_createv(clog, 0, NULL, NULL, 729 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 730 CTLTYPE_INT, "forkfsleep", 731 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 732 "to process limits"), 733 sysctl_kern_forkfsleep, 0, NULL, 0, 734 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 735 sysctl_createv(clog, 0, NULL, NULL, 736 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 737 CTLTYPE_INT, "posix_threads", 738 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 739 "Threads option to which the system " 740 "attempts to conform"), 741 /* XXX _POSIX_VERSION */ 742 NULL, _POSIX_THREADS, NULL, 0, 743 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 744 sysctl_createv(clog, 0, NULL, NULL, 745 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 746 CTLTYPE_INT, "posix_semaphores", 747 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 748 "Semaphores option to which the system " 749 "attempts to conform"), NULL, 750 #ifdef P1003_1B_SEMAPHORE 751 200112, 752 #else /* P1003_1B_SEMAPHORE */ 753 0, 754 #endif /* P1003_1B_SEMAPHORE */ 755 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 756 sysctl_createv(clog, 0, NULL, NULL, 757 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 758 CTLTYPE_INT, "posix_barriers", 759 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 760 "Barriers option to which the system " 761 "attempts to conform"), 762 /* XXX _POSIX_VERSION */ 763 NULL, _POSIX_BARRIERS, NULL, 0, 764 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 765 sysctl_createv(clog, 0, NULL, NULL, 766 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 767 CTLTYPE_INT, "posix_timers", 768 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 769 "Timers option to which the system " 770 "attempts to conform"), 771 /* XXX _POSIX_VERSION */ 772 NULL, _POSIX_TIMERS, NULL, 0, 773 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 774 sysctl_createv(clog, 0, NULL, NULL, 775 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 776 CTLTYPE_INT, "posix_spin_locks", 777 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 778 "Locks option to which the system attempts " 779 "to conform"), 780 /* XXX _POSIX_VERSION */ 781 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 782 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 783 sysctl_createv(clog, 0, NULL, NULL, 784 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 785 CTLTYPE_INT, "posix_reader_writer_locks", 786 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 787 "Read-Write Locks option to which the " 788 "system attempts to conform"), 789 /* XXX _POSIX_VERSION */ 790 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 791 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 792 sysctl_createv(clog, 0, NULL, NULL, 793 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 794 CTLTYPE_INT, "dump_on_panic", 795 SYSCTL_DESCR("Perform a crash dump on system panic"), 796 NULL, 0, &dumponpanic, 0, 797 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 798 #ifdef DIAGNOSTIC 799 sysctl_createv(clog, 0, NULL, NULL, 800 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 801 CTLTYPE_INT, "panic_now", 802 SYSCTL_DESCR("Trigger a panic"), 803 sysctl_kern_trigger_panic, 0, NULL, 0, 804 CTL_KERN, CTL_CREATE, CTL_EOL); 805 #endif 806 sysctl_createv(clog, 0, NULL, NULL, 807 CTLFLAG_PERMANENT, 808 CTLTYPE_INT, "root_partition", 809 SYSCTL_DESCR("Root partition on the root device"), 810 sysctl_kern_root_partition, 0, NULL, 0, 811 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 812 sysctl_createv(clog, 0, NULL, NULL, 813 CTLFLAG_PERMANENT, 814 CTLTYPE_STRUCT, "drivers", 815 SYSCTL_DESCR("List of all drivers with block and " 816 "character device numbers"), 817 sysctl_kern_drivers, 0, NULL, 0, 818 CTL_KERN, KERN_DRIVERS, CTL_EOL); 819 sysctl_createv(clog, 0, NULL, NULL, 820 CTLFLAG_PERMANENT, 821 CTLTYPE_STRUCT, "file2", 822 SYSCTL_DESCR("System open file table"), 823 sysctl_kern_file2, 0, NULL, 0, 824 CTL_KERN, KERN_FILE2, CTL_EOL); 825 sysctl_createv(clog, 0, NULL, NULL, 826 CTLFLAG_PERMANENT, 827 CTLTYPE_STRUCT, "cp_id", 828 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 829 sysctl_kern_cpid, 0, NULL, 0, 830 CTL_KERN, KERN_CP_ID, CTL_EOL); 831 sysctl_createv(clog, 0, NULL, &rnode, 832 CTLFLAG_PERMANENT, 833 CTLTYPE_NODE, "coredump", 834 SYSCTL_DESCR("Coredump settings."), 835 NULL, 0, NULL, 0, 836 CTL_KERN, CTL_CREATE, CTL_EOL); 837 sysctl_createv(clog, 0, &rnode, &rnode, 838 CTLFLAG_PERMANENT, 839 CTLTYPE_NODE, "setid", 840 SYSCTL_DESCR("Set-id processes' coredump settings."), 841 NULL, 0, NULL, 0, 842 CTL_CREATE, CTL_EOL); 843 sysctl_createv(clog, 0, &rnode, NULL, 844 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 845 CTLTYPE_INT, "dump", 846 SYSCTL_DESCR("Allow set-id processes to dump core."), 847 sysctl_security_setidcore, 0, &security_setidcore_dump, 848 sizeof(security_setidcore_dump), 849 CTL_CREATE, CTL_EOL); 850 sysctl_createv(clog, 0, &rnode, NULL, 851 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 852 CTLTYPE_STRING, "path", 853 SYSCTL_DESCR("Path pattern for set-id coredumps."), 854 sysctl_security_setidcorename, 0, 855 &security_setidcore_path, 856 sizeof(security_setidcore_path), 857 CTL_CREATE, CTL_EOL); 858 sysctl_createv(clog, 0, &rnode, NULL, 859 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 860 CTLTYPE_INT, "owner", 861 SYSCTL_DESCR("Owner id for set-id processes' cores."), 862 sysctl_security_setidcore, 0, &security_setidcore_owner, 863 0, 864 CTL_CREATE, CTL_EOL); 865 sysctl_createv(clog, 0, &rnode, NULL, 866 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 867 CTLTYPE_INT, "group", 868 SYSCTL_DESCR("Group id for set-id processes' cores."), 869 sysctl_security_setidcore, 0, &security_setidcore_group, 870 0, 871 CTL_CREATE, CTL_EOL); 872 sysctl_createv(clog, 0, &rnode, NULL, 873 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 874 CTLTYPE_INT, "mode", 875 SYSCTL_DESCR("Mode for set-id processes' cores."), 876 sysctl_security_setidcore, 0, &security_setidcore_mode, 877 0, 878 CTL_CREATE, CTL_EOL); 879 } 880 881 SYSCTL_SETUP(sysctl_kern_proc_setup, 882 "sysctl kern.proc/proc2/proc_args subtree setup") 883 { 884 885 sysctl_createv(clog, 0, NULL, NULL, 886 CTLFLAG_PERMANENT, 887 CTLTYPE_NODE, "kern", NULL, 888 NULL, 0, NULL, 0, 889 CTL_KERN, CTL_EOL); 890 891 sysctl_createv(clog, 0, NULL, NULL, 892 CTLFLAG_PERMANENT, 893 CTLTYPE_NODE, "proc", 894 SYSCTL_DESCR("System-wide process information"), 895 sysctl_doeproc, 0, NULL, 0, 896 CTL_KERN, KERN_PROC, CTL_EOL); 897 sysctl_createv(clog, 0, NULL, NULL, 898 CTLFLAG_PERMANENT, 899 CTLTYPE_NODE, "proc2", 900 SYSCTL_DESCR("Machine-independent process information"), 901 sysctl_doeproc, 0, NULL, 0, 902 CTL_KERN, KERN_PROC2, CTL_EOL); 903 sysctl_createv(clog, 0, NULL, NULL, 904 CTLFLAG_PERMANENT, 905 CTLTYPE_NODE, "proc_args", 906 SYSCTL_DESCR("Process argument information"), 907 sysctl_kern_proc_args, 0, NULL, 0, 908 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 909 910 /* 911 "nodes" under these: 912 913 KERN_PROC_ALL 914 KERN_PROC_PID pid 915 KERN_PROC_PGRP pgrp 916 KERN_PROC_SESSION sess 917 KERN_PROC_TTY tty 918 KERN_PROC_UID uid 919 KERN_PROC_RUID uid 920 KERN_PROC_GID gid 921 KERN_PROC_RGID gid 922 923 all in all, probably not worth the effort... 924 */ 925 } 926 927 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 928 { 929 u_int u; 930 u_quad_t q; 931 932 sysctl_createv(clog, 0, NULL, NULL, 933 CTLFLAG_PERMANENT, 934 CTLTYPE_NODE, "hw", NULL, 935 NULL, 0, NULL, 0, 936 CTL_HW, CTL_EOL); 937 938 sysctl_createv(clog, 0, NULL, NULL, 939 CTLFLAG_PERMANENT, 940 CTLTYPE_STRING, "machine", 941 SYSCTL_DESCR("Machine class"), 942 NULL, 0, machine, 0, 943 CTL_HW, HW_MACHINE, CTL_EOL); 944 sysctl_createv(clog, 0, NULL, NULL, 945 CTLFLAG_PERMANENT, 946 CTLTYPE_STRING, "model", 947 SYSCTL_DESCR("Machine model"), 948 NULL, 0, cpu_model, 0, 949 CTL_HW, HW_MODEL, CTL_EOL); 950 sysctl_createv(clog, 0, NULL, NULL, 951 CTLFLAG_PERMANENT, 952 CTLTYPE_INT, "ncpu", 953 SYSCTL_DESCR("Number of active CPUs"), 954 sysctl_hw_ncpu, 0, NULL, 0, 955 CTL_HW, HW_NCPU, CTL_EOL); 956 sysctl_createv(clog, 0, NULL, NULL, 957 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 958 CTLTYPE_INT, "byteorder", 959 SYSCTL_DESCR("System byte order"), 960 NULL, BYTE_ORDER, NULL, 0, 961 CTL_HW, HW_BYTEORDER, CTL_EOL); 962 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 963 UINT_MAX : physmem * PAGE_SIZE; 964 sysctl_createv(clog, 0, NULL, NULL, 965 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 966 CTLTYPE_INT, "physmem", 967 SYSCTL_DESCR("Bytes of physical memory"), 968 NULL, u, NULL, 0, 969 CTL_HW, HW_PHYSMEM, CTL_EOL); 970 sysctl_createv(clog, 0, NULL, NULL, 971 CTLFLAG_PERMANENT, 972 CTLTYPE_INT, "usermem", 973 SYSCTL_DESCR("Bytes of non-kernel memory"), 974 sysctl_hw_usermem, 0, NULL, 0, 975 CTL_HW, HW_USERMEM, CTL_EOL); 976 sysctl_createv(clog, 0, NULL, NULL, 977 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 978 CTLTYPE_INT, "pagesize", 979 SYSCTL_DESCR("Software page size"), 980 NULL, PAGE_SIZE, NULL, 0, 981 CTL_HW, HW_PAGESIZE, CTL_EOL); 982 sysctl_createv(clog, 0, NULL, NULL, 983 CTLFLAG_PERMANENT, 984 CTLTYPE_STRING, "machine_arch", 985 SYSCTL_DESCR("Machine CPU class"), 986 NULL, 0, machine_arch, 0, 987 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 988 sysctl_createv(clog, 0, NULL, NULL, 989 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 990 CTLTYPE_INT, "alignbytes", 991 SYSCTL_DESCR("Alignment constraint for all possible " 992 "data types"), 993 NULL, ALIGNBYTES, NULL, 0, 994 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 995 sysctl_createv(clog, 0, NULL, NULL, 996 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 997 CTLTYPE_STRING, "cnmagic", 998 SYSCTL_DESCR("Console magic key sequence"), 999 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 1000 CTL_HW, HW_CNMAGIC, CTL_EOL); 1001 q = (u_quad_t)physmem * PAGE_SIZE; 1002 sysctl_createv(clog, 0, NULL, NULL, 1003 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 1004 CTLTYPE_QUAD, "physmem64", 1005 SYSCTL_DESCR("Bytes of physical memory"), 1006 NULL, q, NULL, 0, 1007 CTL_HW, HW_PHYSMEM64, CTL_EOL); 1008 sysctl_createv(clog, 0, NULL, NULL, 1009 CTLFLAG_PERMANENT, 1010 CTLTYPE_QUAD, "usermem64", 1011 SYSCTL_DESCR("Bytes of non-kernel memory"), 1012 sysctl_hw_usermem, 0, NULL, 0, 1013 CTL_HW, HW_USERMEM64, CTL_EOL); 1014 } 1015 1016 #ifdef DEBUG 1017 /* 1018 * Debugging related system variables. 1019 */ 1020 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 1021 struct ctldebug debug5, debug6, debug7, debug8, debug9; 1022 struct ctldebug debug10, debug11, debug12, debug13, debug14; 1023 struct ctldebug debug15, debug16, debug17, debug18, debug19; 1024 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 1025 &debug0, &debug1, &debug2, &debug3, &debug4, 1026 &debug5, &debug6, &debug7, &debug8, &debug9, 1027 &debug10, &debug11, &debug12, &debug13, &debug14, 1028 &debug15, &debug16, &debug17, &debug18, &debug19, 1029 }; 1030 1031 /* 1032 * this setup routine is a replacement for debug_sysctl() 1033 * 1034 * note that it creates several nodes per defined debug variable 1035 */ 1036 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1037 { 1038 struct ctldebug *cdp; 1039 char nodename[20]; 1040 int i; 1041 1042 /* 1043 * two ways here: 1044 * 1045 * the "old" way (debug.name -> value) which was emulated by 1046 * the sysctl(8) binary 1047 * 1048 * the new way, which the sysctl(8) binary was actually using 1049 1050 node debug 1051 node debug.0 1052 string debug.0.name 1053 int debug.0.value 1054 int debug.name 1055 1056 */ 1057 1058 sysctl_createv(clog, 0, NULL, NULL, 1059 CTLFLAG_PERMANENT, 1060 CTLTYPE_NODE, "debug", NULL, 1061 NULL, 0, NULL, 0, 1062 CTL_DEBUG, CTL_EOL); 1063 1064 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1065 cdp = debugvars[i]; 1066 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1067 continue; 1068 1069 snprintf(nodename, sizeof(nodename), "debug%d", i); 1070 sysctl_createv(clog, 0, NULL, NULL, 1071 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1072 CTLTYPE_NODE, nodename, NULL, 1073 NULL, 0, NULL, 0, 1074 CTL_DEBUG, i, CTL_EOL); 1075 sysctl_createv(clog, 0, NULL, NULL, 1076 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1077 CTLTYPE_STRING, "name", NULL, 1078 /*XXXUNCONST*/ 1079 NULL, 0, __UNCONST(cdp->debugname), 0, 1080 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1081 sysctl_createv(clog, 0, NULL, NULL, 1082 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1083 CTLTYPE_INT, "value", NULL, 1084 NULL, 0, cdp->debugvar, 0, 1085 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1086 sysctl_createv(clog, 0, NULL, NULL, 1087 CTLFLAG_PERMANENT, 1088 CTLTYPE_INT, cdp->debugname, NULL, 1089 NULL, 0, cdp->debugvar, 0, 1090 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1091 } 1092 } 1093 #endif /* DEBUG */ 1094 1095 /* 1096 * ******************************************************************** 1097 * section 2: private node-specific helper routines. 1098 * ******************************************************************** 1099 */ 1100 1101 #ifdef DIAGNOSTIC 1102 static int 1103 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1104 { 1105 int newtrig, error; 1106 struct sysctlnode node; 1107 1108 newtrig = 0; 1109 node = *rnode; 1110 node.sysctl_data = &newtrig; 1111 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1112 if (error || newp == NULL) 1113 return (error); 1114 1115 if (newtrig != 0) 1116 panic("Panic triggered"); 1117 1118 return (error); 1119 } 1120 #endif 1121 1122 /* 1123 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1124 * new value is lower than desiredvnodes and then calls reinit 1125 * routines that needs to adjust to the new value. 1126 */ 1127 static int 1128 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1129 { 1130 int error, new_vnodes, old_vnodes; 1131 struct sysctlnode node; 1132 1133 new_vnodes = desiredvnodes; 1134 node = *rnode; 1135 node.sysctl_data = &new_vnodes; 1136 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1137 if (error || newp == NULL) 1138 return (error); 1139 1140 old_vnodes = desiredvnodes; 1141 desiredvnodes = new_vnodes; 1142 if (new_vnodes < old_vnodes) { 1143 error = vfs_drainvnodes(new_vnodes, l); 1144 if (error) { 1145 desiredvnodes = old_vnodes; 1146 return (error); 1147 } 1148 } 1149 vfs_reinit(); 1150 nchreinit(); 1151 1152 return (0); 1153 } 1154 1155 /* 1156 * sysctl helper routine for rtc_offset - set time after changes 1157 */ 1158 static int 1159 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1160 { 1161 struct timespec ts, delta; 1162 int error, new_rtc_offset; 1163 struct sysctlnode node; 1164 1165 new_rtc_offset = rtc_offset; 1166 node = *rnode; 1167 node.sysctl_data = &new_rtc_offset; 1168 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1169 if (error || newp == NULL) 1170 return (error); 1171 1172 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1173 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1174 (void *)(u_long)new_rtc_offset, NULL, NULL)) 1175 return (EPERM); 1176 if (rtc_offset == new_rtc_offset) 1177 return (0); 1178 1179 /* if we change the offset, adjust the time */ 1180 nanotime(&ts); 1181 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1182 delta.tv_nsec = 0; 1183 timespecadd(&ts, &delta, &ts); 1184 rtc_offset = new_rtc_offset; 1185 settime(l->l_proc, &ts); 1186 1187 return (0); 1188 } 1189 1190 /* 1191 * sysctl helper routine for kern.maxproc. ensures that the new 1192 * values are not too low or too high. 1193 */ 1194 static int 1195 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1196 { 1197 int error, nmaxproc; 1198 struct sysctlnode node; 1199 1200 nmaxproc = maxproc; 1201 node = *rnode; 1202 node.sysctl_data = &nmaxproc; 1203 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1204 if (error || newp == NULL) 1205 return (error); 1206 1207 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1208 return (EINVAL); 1209 #ifdef __HAVE_CPU_MAXPROC 1210 if (nmaxproc > cpu_maxproc()) 1211 return (EINVAL); 1212 #endif 1213 maxproc = nmaxproc; 1214 1215 return (0); 1216 } 1217 1218 /* 1219 * sysctl helper function for kern.hostid. the hostid is a long, but 1220 * we export it as an int, so we need to give it a little help. 1221 */ 1222 static int 1223 sysctl_kern_hostid(SYSCTLFN_ARGS) 1224 { 1225 int error, inthostid; 1226 struct sysctlnode node; 1227 1228 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1229 node = *rnode; 1230 node.sysctl_data = &inthostid; 1231 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1232 if (error || newp == NULL) 1233 return (error); 1234 1235 hostid = (unsigned)inthostid; 1236 1237 return (0); 1238 } 1239 1240 /* 1241 * sysctl helper function for kern.hostname and kern.domainnname. 1242 * resets the relevant recorded length when the underlying name is 1243 * changed. 1244 */ 1245 static int 1246 sysctl_setlen(SYSCTLFN_ARGS) 1247 { 1248 int error; 1249 1250 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1251 if (error || newp == NULL) 1252 return (error); 1253 1254 switch (rnode->sysctl_num) { 1255 case KERN_HOSTNAME: 1256 hostnamelen = strlen((const char*)rnode->sysctl_data); 1257 break; 1258 case KERN_DOMAINNAME: 1259 domainnamelen = strlen((const char*)rnode->sysctl_data); 1260 break; 1261 } 1262 1263 return (0); 1264 } 1265 1266 /* 1267 * sysctl helper routine for kern.clockrate. assembles a struct on 1268 * the fly to be returned to the caller. 1269 */ 1270 static int 1271 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1272 { 1273 struct clockinfo clkinfo; 1274 struct sysctlnode node; 1275 1276 clkinfo.tick = tick; 1277 clkinfo.tickadj = tickadj; 1278 clkinfo.hz = hz; 1279 clkinfo.profhz = profhz; 1280 clkinfo.stathz = stathz ? stathz : hz; 1281 1282 node = *rnode; 1283 node.sysctl_data = &clkinfo; 1284 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1285 } 1286 1287 1288 /* 1289 * sysctl helper routine for kern.file pseudo-subtree. 1290 */ 1291 static int 1292 sysctl_kern_file(SYSCTLFN_ARGS) 1293 { 1294 int error; 1295 size_t buflen; 1296 struct file *fp; 1297 char *start, *where; 1298 1299 start = where = oldp; 1300 buflen = *oldlenp; 1301 if (where == NULL) { 1302 /* 1303 * overestimate by 10 files 1304 */ 1305 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1306 return (0); 1307 } 1308 1309 /* 1310 * first dcopyout filehead 1311 */ 1312 if (buflen < sizeof(filehead)) { 1313 *oldlenp = 0; 1314 return (0); 1315 } 1316 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1317 if (error) 1318 return (error); 1319 buflen -= sizeof(filehead); 1320 where += sizeof(filehead); 1321 1322 /* 1323 * followed by an array of file structures 1324 */ 1325 LIST_FOREACH(fp, &filehead, f_list) { 1326 if (kauth_authorize_generic(l->l_cred, 1327 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1328 continue; 1329 if (buflen < sizeof(struct file)) { 1330 *oldlenp = where - start; 1331 return (ENOMEM); 1332 } 1333 error = dcopyout(l, fp, where, sizeof(struct file)); 1334 if (error) 1335 return (error); 1336 buflen -= sizeof(struct file); 1337 where += sizeof(struct file); 1338 } 1339 *oldlenp = where - start; 1340 return (0); 1341 } 1342 1343 /* 1344 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1345 * asserts that the assigned value is in the correct range. 1346 */ 1347 static int 1348 sysctl_kern_autonice(SYSCTLFN_ARGS) 1349 { 1350 int error, t = 0; 1351 struct sysctlnode node; 1352 1353 node = *rnode; 1354 t = *(int*)node.sysctl_data; 1355 node.sysctl_data = &t; 1356 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1357 if (error || newp == NULL) 1358 return (error); 1359 1360 switch (node.sysctl_num) { 1361 case KERN_AUTONICETIME: 1362 if (t >= 0) 1363 autonicetime = t; 1364 break; 1365 case KERN_AUTONICEVAL: 1366 if (t < PRIO_MIN) 1367 t = PRIO_MIN; 1368 else if (t > PRIO_MAX) 1369 t = PRIO_MAX; 1370 autoniceval = t; 1371 break; 1372 } 1373 1374 return (0); 1375 } 1376 1377 /* 1378 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1379 * former it merely checks the message buffer is set up. for the latter, 1380 * it also copies out the data if necessary. 1381 */ 1382 static int 1383 sysctl_msgbuf(SYSCTLFN_ARGS) 1384 { 1385 char *where = oldp; 1386 size_t len, maxlen; 1387 long beg, end; 1388 int error; 1389 1390 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1391 msgbufenabled = 0; 1392 return (ENXIO); 1393 } 1394 1395 switch (rnode->sysctl_num) { 1396 case KERN_MSGBUFSIZE: { 1397 struct sysctlnode node = *rnode; 1398 int msg_bufs = (int)msgbufp->msg_bufs; 1399 node.sysctl_data = &msg_bufs; 1400 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1401 } 1402 case KERN_MSGBUF: 1403 break; 1404 default: 1405 return (EOPNOTSUPP); 1406 } 1407 1408 if (newp != NULL) 1409 return (EPERM); 1410 1411 if (oldp == NULL) { 1412 /* always return full buffer size */ 1413 *oldlenp = msgbufp->msg_bufs; 1414 return (0); 1415 } 1416 1417 error = 0; 1418 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1419 1420 /* 1421 * First, copy from the write pointer to the end of 1422 * message buffer. 1423 */ 1424 beg = msgbufp->msg_bufx; 1425 end = msgbufp->msg_bufs; 1426 while (maxlen > 0) { 1427 len = MIN(end - beg, maxlen); 1428 if (len == 0) 1429 break; 1430 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1431 if (error) 1432 break; 1433 where += len; 1434 maxlen -= len; 1435 1436 /* 1437 * ... then, copy from the beginning of message buffer to 1438 * the write pointer. 1439 */ 1440 beg = 0; 1441 end = msgbufp->msg_bufx; 1442 } 1443 1444 return (error); 1445 } 1446 1447 /* 1448 * sysctl helper routine for kern.defcorename. in the case of a new 1449 * string being assigned, check that it's not a zero-length string. 1450 * (XXX the check in -current doesn't work, but do we really care?) 1451 */ 1452 static int 1453 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1454 { 1455 int error; 1456 char *newcorename; 1457 struct sysctlnode node; 1458 1459 newcorename = PNBUF_GET(); 1460 node = *rnode; 1461 node.sysctl_data = &newcorename[0]; 1462 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1463 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1464 if (error || newp == NULL) { 1465 goto done; 1466 } 1467 1468 /* 1469 * when sysctl_lookup() deals with a string, it's guaranteed 1470 * to come back nul terminated. so there. :) 1471 */ 1472 if (strlen(newcorename) == 0) { 1473 error = EINVAL; 1474 } else { 1475 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1476 error = 0; 1477 } 1478 done: 1479 PNBUF_PUT(newcorename); 1480 return error; 1481 } 1482 1483 /* 1484 * sysctl helper routine for kern.cp_time node. adds up cpu time 1485 * across all cpus. 1486 */ 1487 static int 1488 sysctl_kern_cptime(SYSCTLFN_ARGS) 1489 { 1490 struct sysctlnode node = *rnode; 1491 1492 #ifndef MULTIPROCESSOR 1493 1494 if (namelen == 1) { 1495 if (name[0] != 0) 1496 return (ENOENT); 1497 /* 1498 * you're allowed to ask for the zero'th processor 1499 */ 1500 name++; 1501 namelen--; 1502 } 1503 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1504 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1505 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1506 1507 #else /* MULTIPROCESSOR */ 1508 1509 uint64_t *cp_time = NULL; 1510 int error, n = ncpu, i; 1511 struct cpu_info *ci; 1512 CPU_INFO_ITERATOR cii; 1513 1514 /* 1515 * if you specifically pass a buffer that is the size of the 1516 * sum, or if you are probing for the size, you get the "sum" 1517 * of cp_time (and the size thereof) across all processors. 1518 * 1519 * alternately, you can pass an additional mib number and get 1520 * cp_time for that particular processor. 1521 */ 1522 switch (namelen) { 1523 case 0: 1524 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1525 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1526 n = -1; /* SUM */ 1527 } 1528 else { 1529 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1530 n = -2; /* ALL */ 1531 } 1532 break; 1533 case 1: 1534 if (name[0] < 0 || name[0] >= n) 1535 return (ENOENT); /* ENOSUCHPROCESSOR */ 1536 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1537 n = name[0]; 1538 /* 1539 * adjust these so that sysctl_lookup() will be happy 1540 */ 1541 name++; 1542 namelen--; 1543 break; 1544 default: 1545 return (EINVAL); 1546 } 1547 1548 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1549 if (cp_time == NULL) 1550 return (ENOMEM); 1551 node.sysctl_data = cp_time; 1552 memset(cp_time, 0, node.sysctl_size); 1553 1554 for (CPU_INFO_FOREACH(cii, ci)) { 1555 if (n <= 0) 1556 for (i = 0; i < CPUSTATES; i++) 1557 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1558 /* 1559 * if a specific processor was requested and we just 1560 * did it, we're done here 1561 */ 1562 if (n == 0) 1563 break; 1564 /* 1565 * if doing "all", skip to next cp_time set for next processor 1566 */ 1567 if (n == -2) 1568 cp_time += CPUSTATES; 1569 /* 1570 * if we're doing a specific processor, we're one 1571 * processor closer 1572 */ 1573 if (n > 0) 1574 n--; 1575 } 1576 1577 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1578 free(node.sysctl_data, M_TEMP); 1579 return (error); 1580 1581 #endif /* MULTIPROCESSOR */ 1582 } 1583 1584 #if NPTY > 0 1585 /* 1586 * sysctl helper routine for kern.maxptys. ensures that any new value 1587 * is acceptable to the pty subsystem. 1588 */ 1589 static int 1590 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1591 { 1592 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1593 int error, xmax; 1594 struct sysctlnode node; 1595 1596 /* get current value of maxptys */ 1597 xmax = pty_maxptys(0, 0); 1598 1599 node = *rnode; 1600 node.sysctl_data = &xmax; 1601 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1602 if (error || newp == NULL) 1603 return (error); 1604 1605 if (xmax != pty_maxptys(xmax, 1)) 1606 return (EINVAL); 1607 1608 return (0); 1609 } 1610 #endif /* NPTY > 0 */ 1611 1612 /* 1613 * sysctl helper routine for kern.sbmax. basically just ensures that 1614 * any new value is not too small. 1615 */ 1616 static int 1617 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1618 { 1619 int error, new_sbmax; 1620 struct sysctlnode node; 1621 1622 new_sbmax = sb_max; 1623 node = *rnode; 1624 node.sysctl_data = &new_sbmax; 1625 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1626 if (error || newp == NULL) 1627 return (error); 1628 1629 error = sb_max_set(new_sbmax); 1630 1631 return (error); 1632 } 1633 1634 /* 1635 * sysctl helper routine for kern.urandom node. picks a random number 1636 * for you. 1637 */ 1638 static int 1639 sysctl_kern_urnd(SYSCTLFN_ARGS) 1640 { 1641 #if NRND > 0 1642 int v; 1643 1644 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1645 struct sysctlnode node = *rnode; 1646 node.sysctl_data = &v; 1647 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1648 } 1649 else 1650 return (EIO); /*XXX*/ 1651 #else 1652 return (EOPNOTSUPP); 1653 #endif 1654 } 1655 1656 /* 1657 * sysctl helper routine for kern.arandom node. picks a random number 1658 * for you. 1659 */ 1660 static int 1661 sysctl_kern_arnd(SYSCTLFN_ARGS) 1662 { 1663 #if NRND > 0 1664 int error; 1665 void *v; 1666 struct sysctlnode node = *rnode; 1667 1668 if (*oldlenp == 0) 1669 return 0; 1670 if (*oldlenp > 8192) 1671 return E2BIG; 1672 1673 v = malloc(*oldlenp, M_TEMP, M_WAITOK); 1674 1675 arc4randbytes(v, *oldlenp); 1676 node.sysctl_data = v; 1677 node.sysctl_size = *oldlenp; 1678 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1679 free(v, M_TEMP); 1680 return error; 1681 #else 1682 return (EOPNOTSUPP); 1683 #endif 1684 } 1685 /* 1686 * sysctl helper routine to do kern.lwp.* work. 1687 */ 1688 static int 1689 sysctl_kern_lwp(SYSCTLFN_ARGS) 1690 { 1691 struct kinfo_lwp klwp; 1692 struct proc *p; 1693 struct lwp *l2; 1694 char *where, *dp; 1695 int pid, elem_size, elem_count; 1696 int buflen, needed, error; 1697 1698 if (namelen == 1 && name[0] == CTL_QUERY) 1699 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1700 1701 dp = where = oldp; 1702 buflen = where != NULL ? *oldlenp : 0; 1703 error = needed = 0; 1704 1705 if (newp != NULL || namelen != 3) 1706 return (EINVAL); 1707 pid = name[0]; 1708 elem_size = name[1]; 1709 elem_count = name[2]; 1710 1711 mutex_enter(&proclist_lock); 1712 p = p_find(pid, PFIND_LOCKED); 1713 if (p == NULL) { 1714 mutex_exit(&proclist_lock); 1715 return (ESRCH); 1716 } 1717 mutex_enter(&p->p_smutex); 1718 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1719 if (buflen >= elem_size && elem_count > 0) { 1720 lwp_lock(l2); 1721 fill_lwp(l2, &klwp); 1722 lwp_unlock(l2); 1723 1724 /* 1725 * Copy out elem_size, but not larger than 1726 * the size of a struct kinfo_proc2. 1727 * 1728 * XXX We should not be holding p_smutex, but 1729 * for now, the buffer is wired. Fix later. 1730 */ 1731 error = dcopyout(l, &klwp, dp, 1732 min(sizeof(klwp), elem_size)); 1733 if (error) 1734 goto cleanup; 1735 dp += elem_size; 1736 buflen -= elem_size; 1737 elem_count--; 1738 } 1739 needed += elem_size; 1740 } 1741 mutex_exit(&p->p_smutex); 1742 mutex_exit(&proclist_lock); 1743 1744 if (where != NULL) { 1745 *oldlenp = dp - where; 1746 if (needed > *oldlenp) 1747 return (ENOMEM); 1748 } else { 1749 needed += KERN_LWPSLOP; 1750 *oldlenp = needed; 1751 } 1752 return (0); 1753 cleanup: 1754 return (error); 1755 } 1756 1757 /* 1758 * sysctl helper routine for kern.forkfsleep node. ensures that the 1759 * given value is not too large or two small, and is at least one 1760 * timer tick if not zero. 1761 */ 1762 static int 1763 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1764 { 1765 /* userland sees value in ms, internally is in ticks */ 1766 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1767 int error, timo, lsleep; 1768 struct sysctlnode node; 1769 1770 lsleep = forkfsleep * 1000 / hz; 1771 node = *rnode; 1772 node.sysctl_data = &lsleep; 1773 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1774 if (error || newp == NULL) 1775 return (error); 1776 1777 /* refuse negative values, and overly 'long time' */ 1778 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1779 return (EINVAL); 1780 1781 timo = mstohz(lsleep); 1782 1783 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1784 if (lsleep != 0 && timo == 0) 1785 forkfsleep = 1; 1786 else 1787 forkfsleep = timo; 1788 1789 return (0); 1790 } 1791 1792 /* 1793 * sysctl helper routine for kern.root_partition 1794 */ 1795 static int 1796 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1797 { 1798 int rootpart = DISKPART(rootdev); 1799 struct sysctlnode node = *rnode; 1800 1801 node.sysctl_data = &rootpart; 1802 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1803 } 1804 1805 /* 1806 * sysctl helper function for kern.drivers 1807 */ 1808 static int 1809 sysctl_kern_drivers(SYSCTLFN_ARGS) 1810 { 1811 int error; 1812 size_t buflen; 1813 struct kinfo_drivers kd; 1814 char *start, *where; 1815 const char *dname; 1816 int i; 1817 extern struct devsw_conv *devsw_conv; 1818 extern int max_devsw_convs; 1819 1820 if (newp != NULL || namelen != 0) 1821 return (EINVAL); 1822 1823 start = where = oldp; 1824 buflen = *oldlenp; 1825 if (where == NULL) { 1826 *oldlenp = max_devsw_convs * sizeof kd; 1827 return 0; 1828 } 1829 1830 /* 1831 * An array of kinfo_drivers structures 1832 */ 1833 error = 0; 1834 for (i = 0; i < max_devsw_convs; i++) { 1835 dname = devsw_conv[i].d_name; 1836 if (dname == NULL) 1837 continue; 1838 if (buflen < sizeof kd) { 1839 error = ENOMEM; 1840 break; 1841 } 1842 memset(&kd, 0, sizeof(kd)); 1843 kd.d_bmajor = devsw_conv[i].d_bmajor; 1844 kd.d_cmajor = devsw_conv[i].d_cmajor; 1845 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1846 error = dcopyout(l, &kd, where, sizeof kd); 1847 if (error != 0) 1848 break; 1849 buflen -= sizeof kd; 1850 where += sizeof kd; 1851 } 1852 *oldlenp = where - start; 1853 return error; 1854 } 1855 1856 /* 1857 * sysctl helper function for kern.file2 1858 */ 1859 static int 1860 sysctl_kern_file2(SYSCTLFN_ARGS) 1861 { 1862 struct proc *p; 1863 struct file *fp; 1864 struct filedesc *fd; 1865 struct kinfo_file kf; 1866 char *dp; 1867 u_int i, op; 1868 size_t len, needed, elem_size, out_size; 1869 int error, arg, elem_count; 1870 1871 if (namelen == 1 && name[0] == CTL_QUERY) 1872 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1873 1874 if (namelen != 4) 1875 return (EINVAL); 1876 1877 error = 0; 1878 dp = oldp; 1879 len = (oldp != NULL) ? *oldlenp : 0; 1880 op = name[0]; 1881 arg = name[1]; 1882 elem_size = name[2]; 1883 elem_count = name[3]; 1884 out_size = MIN(sizeof(kf), elem_size); 1885 needed = 0; 1886 1887 if (elem_size < 1 || elem_count < 0) 1888 return (EINVAL); 1889 1890 switch (op) { 1891 case KERN_FILE_BYFILE: 1892 /* 1893 * doesn't use arg so it must be zero 1894 */ 1895 if (arg != 0) 1896 return (EINVAL); 1897 LIST_FOREACH(fp, &filehead, f_list) { 1898 if (kauth_authorize_generic(l->l_cred, 1899 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1900 continue; 1901 if (len >= elem_size && elem_count > 0) { 1902 fill_file(&kf, fp, NULL, 0); 1903 error = dcopyout(l, &kf, dp, out_size); 1904 if (error) 1905 break; 1906 dp += elem_size; 1907 len -= elem_size; 1908 } 1909 if (elem_count > 0) { 1910 needed += elem_size; 1911 if (elem_count != INT_MAX) 1912 elem_count--; 1913 } 1914 } 1915 break; 1916 case KERN_FILE_BYPID: 1917 if (arg < -1) 1918 /* -1 means all processes */ 1919 return (EINVAL); 1920 mutex_enter(&proclist_lock); 1921 PROCLIST_FOREACH(p, &allproc) { 1922 if (p->p_stat == SIDL) 1923 /* skip embryonic processes */ 1924 continue; 1925 if (kauth_authorize_process(l->l_cred, 1926 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 1927 continue; 1928 if (arg > 0 && p->p_pid != arg) 1929 /* pick only the one we want */ 1930 /* XXX want 0 to mean "kernel files" */ 1931 continue; 1932 fd = p->p_fd; 1933 for (i = 0; i < fd->fd_nfiles; i++) { 1934 fp = fd->fd_ofiles[i]; 1935 if (fp == NULL || !FILE_IS_USABLE(fp)) 1936 continue; 1937 if (len >= elem_size && elem_count > 0) { 1938 fill_file(&kf, fd->fd_ofiles[i], 1939 p, i); 1940 error = dcopyout(l, &kf, dp, out_size); 1941 if (error) 1942 break; 1943 dp += elem_size; 1944 len -= elem_size; 1945 } 1946 if (elem_count > 0) { 1947 needed += elem_size; 1948 if (elem_count != INT_MAX) 1949 elem_count--; 1950 } 1951 } 1952 } 1953 mutex_exit(&proclist_lock); 1954 break; 1955 default: 1956 return (EINVAL); 1957 } 1958 1959 if (oldp == NULL) 1960 needed += KERN_FILESLOP * elem_size; 1961 *oldlenp = needed; 1962 1963 return (error); 1964 } 1965 1966 static void 1967 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 1968 { 1969 1970 memset(kp, 0, sizeof(*kp)); 1971 1972 kp->ki_fileaddr = PTRTOUINT64(fp); 1973 kp->ki_flag = fp->f_flag; 1974 kp->ki_iflags = fp->f_iflags; 1975 kp->ki_ftype = fp->f_type; 1976 kp->ki_count = fp->f_count; 1977 kp->ki_msgcount = fp->f_msgcount; 1978 kp->ki_usecount = fp->f_usecount; 1979 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 1980 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 1981 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 1982 kp->ki_fops = PTRTOUINT64(fp->f_ops); 1983 kp->ki_foffset = fp->f_offset; 1984 kp->ki_fdata = PTRTOUINT64(fp->f_data); 1985 1986 /* vnode information to glue this file to something */ 1987 if (fp->f_type == DTYPE_VNODE) { 1988 struct vnode *vp = (struct vnode *)fp->f_data; 1989 1990 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 1991 kp->ki_vsize = vp->v_size; 1992 kp->ki_vtype = vp->v_type; 1993 kp->ki_vtag = vp->v_tag; 1994 kp->ki_vdata = PTRTOUINT64(vp->v_data); 1995 } 1996 1997 /* process information when retrieved via KERN_FILE_BYPID */ 1998 if (p) { 1999 kp->ki_pid = p->p_pid; 2000 kp->ki_fd = i; 2001 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2002 } 2003 } 2004 2005 static int 2006 sysctl_doeproc(SYSCTLFN_ARGS) 2007 { 2008 struct eproc *eproc; 2009 struct kinfo_proc2 *kproc2; 2010 struct kinfo_proc *dp; 2011 struct proc *p; 2012 const struct proclist_desc *pd; 2013 char *where, *dp2; 2014 int type, op, arg; 2015 u_int elem_size, elem_count; 2016 size_t buflen, needed; 2017 int error; 2018 2019 if (namelen == 1 && name[0] == CTL_QUERY) 2020 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2021 2022 dp = oldp; 2023 dp2 = where = oldp; 2024 buflen = where != NULL ? *oldlenp : 0; 2025 error = 0; 2026 needed = 0; 2027 type = rnode->sysctl_num; 2028 2029 if (type == KERN_PROC) { 2030 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2031 return (EINVAL); 2032 op = name[0]; 2033 if (op != KERN_PROC_ALL) 2034 arg = name[1]; 2035 else 2036 arg = 0; /* Quell compiler warning */ 2037 elem_size = elem_count = 0; /* Ditto */ 2038 } else { 2039 if (namelen != 4) 2040 return (EINVAL); 2041 op = name[0]; 2042 arg = name[1]; 2043 elem_size = name[2]; 2044 elem_count = name[3]; 2045 } 2046 2047 if (type == KERN_PROC) { 2048 eproc = malloc(sizeof(*eproc), M_TEMP, M_WAITOK); 2049 kproc2 = NULL; 2050 } else { 2051 eproc = NULL; 2052 kproc2 = malloc(sizeof(*kproc2), M_TEMP, M_WAITOK); 2053 } 2054 mutex_enter(&proclist_lock); 2055 2056 pd = proclists; 2057 again: 2058 PROCLIST_FOREACH(p, pd->pd_list) { 2059 /* 2060 * Skip embryonic processes. 2061 */ 2062 if (p->p_stat == SIDL) 2063 continue; 2064 2065 if (kauth_authorize_process(l->l_cred, 2066 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2067 continue; 2068 2069 /* 2070 * TODO - make more efficient (see notes below). 2071 * do by session. 2072 */ 2073 switch (op) { 2074 2075 case KERN_PROC_PID: 2076 /* could do this with just a lookup */ 2077 if (p->p_pid != (pid_t)arg) 2078 continue; 2079 break; 2080 2081 case KERN_PROC_PGRP: 2082 /* could do this by traversing pgrp */ 2083 if (p->p_pgrp->pg_id != (pid_t)arg) 2084 continue; 2085 break; 2086 2087 case KERN_PROC_SESSION: 2088 if (p->p_session->s_sid != (pid_t)arg) 2089 continue; 2090 break; 2091 2092 case KERN_PROC_TTY: 2093 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2094 if ((p->p_lflag & PL_CONTROLT) == 0 || 2095 p->p_session->s_ttyp == NULL || 2096 p->p_session->s_ttyvp != NULL) 2097 continue; 2098 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2099 p->p_session->s_ttyp == NULL) { 2100 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2101 continue; 2102 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2103 continue; 2104 break; 2105 2106 case KERN_PROC_UID: 2107 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2108 continue; 2109 break; 2110 2111 case KERN_PROC_RUID: 2112 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2113 continue; 2114 break; 2115 2116 case KERN_PROC_GID: 2117 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2118 continue; 2119 break; 2120 2121 case KERN_PROC_RGID: 2122 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2123 continue; 2124 break; 2125 2126 case KERN_PROC_ALL: 2127 /* allow everything */ 2128 break; 2129 2130 default: 2131 error = EINVAL; 2132 goto cleanup; 2133 } 2134 if (type == KERN_PROC) { 2135 if (buflen >= sizeof(struct kinfo_proc)) { 2136 fill_eproc(p, eproc); 2137 error = dcopyout(l, p, &dp->kp_proc, 2138 sizeof(struct proc)); 2139 if (error) 2140 goto cleanup; 2141 error = dcopyout(l, eproc, &dp->kp_eproc, 2142 sizeof(*eproc)); 2143 if (error) 2144 goto cleanup; 2145 dp++; 2146 buflen -= sizeof(struct kinfo_proc); 2147 } 2148 needed += sizeof(struct kinfo_proc); 2149 } else { /* KERN_PROC2 */ 2150 if (buflen >= elem_size && elem_count > 0) { 2151 fill_kproc2(p, kproc2); 2152 /* 2153 * Copy out elem_size, but not larger than 2154 * the size of a struct kinfo_proc2. 2155 */ 2156 error = dcopyout(l, kproc2, dp2, 2157 min(sizeof(*kproc2), elem_size)); 2158 if (error) 2159 goto cleanup; 2160 dp2 += elem_size; 2161 buflen -= elem_size; 2162 elem_count--; 2163 } 2164 needed += elem_size; 2165 } 2166 } 2167 pd++; 2168 if (pd->pd_list != NULL) 2169 goto again; 2170 mutex_exit(&proclist_lock); 2171 2172 if (where != NULL) { 2173 if (type == KERN_PROC) 2174 *oldlenp = (char *)dp - where; 2175 else 2176 *oldlenp = dp2 - where; 2177 if (needed > *oldlenp) { 2178 error = ENOMEM; 2179 goto out; 2180 } 2181 } else { 2182 needed += KERN_PROCSLOP; 2183 *oldlenp = needed; 2184 } 2185 if (kproc2) 2186 free(kproc2, M_TEMP); 2187 if (eproc) 2188 free(eproc, M_TEMP); 2189 return 0; 2190 cleanup: 2191 mutex_exit(&proclist_lock); 2192 out: 2193 if (kproc2) 2194 free(kproc2, M_TEMP); 2195 if (eproc) 2196 free(eproc, M_TEMP); 2197 return error; 2198 } 2199 2200 /* 2201 * sysctl helper routine for kern.proc_args pseudo-subtree. 2202 */ 2203 static int 2204 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2205 { 2206 struct ps_strings pss; 2207 struct proc *p; 2208 size_t len, i; 2209 struct uio auio; 2210 struct iovec aiov; 2211 pid_t pid; 2212 int nargv, type, error; 2213 char *arg; 2214 char **argv = NULL; 2215 char *tmp; 2216 struct vmspace *vmspace; 2217 vaddr_t psstr_addr; 2218 vaddr_t offsetn; 2219 vaddr_t offsetv; 2220 2221 if (namelen == 1 && name[0] == CTL_QUERY) 2222 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2223 2224 if (newp != NULL || namelen != 2) 2225 return (EINVAL); 2226 pid = name[0]; 2227 type = name[1]; 2228 2229 switch (type) { 2230 case KERN_PROC_ARGV: 2231 case KERN_PROC_NARGV: 2232 case KERN_PROC_ENV: 2233 case KERN_PROC_NENV: 2234 /* ok */ 2235 break; 2236 default: 2237 return (EINVAL); 2238 } 2239 2240 mutex_enter(&proclist_lock); 2241 2242 /* check pid */ 2243 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2244 error = EINVAL; 2245 goto out_locked; 2246 } 2247 2248 error = kauth_authorize_process(l->l_cred, 2249 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2250 if (error) { 2251 goto out_locked; 2252 } 2253 2254 /* only root or same user change look at the environment */ 2255 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2256 if (kauth_authorize_generic(l->l_cred, KAUTH_GENERIC_ISSUSER, 2257 NULL) != 0) { 2258 if (kauth_cred_getuid(l->l_cred) != 2259 kauth_cred_getuid(p->p_cred) || 2260 kauth_cred_getuid(l->l_cred) != 2261 kauth_cred_getsvuid(p->p_cred)) { 2262 error = EPERM; 2263 goto out_locked; 2264 } 2265 } 2266 } 2267 2268 if (oldp == NULL) { 2269 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2270 *oldlenp = sizeof (int); 2271 else 2272 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2273 error = 0; 2274 goto out_locked; 2275 } 2276 2277 /* 2278 * Zombies don't have a stack, so we can't read their psstrings. 2279 * System processes also don't have a user stack. 2280 */ 2281 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2282 error = EINVAL; 2283 goto out_locked; 2284 } 2285 2286 /* 2287 * Lock the process down in memory. 2288 */ 2289 /* XXXCDC: how should locking work here? */ 2290 if ((l->l_flag & LW_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2291 error = EFAULT; 2292 goto out_locked; 2293 } 2294 2295 psstr_addr = (vaddr_t)p->p_psstr; 2296 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2297 offsetn = p->p_psnargv; 2298 offsetv = p->p_psargv; 2299 } else { 2300 offsetn = p->p_psnenv; 2301 offsetv = p->p_psenv; 2302 } 2303 vmspace = p->p_vmspace; 2304 vmspace->vm_refcnt++; /* XXX */ 2305 2306 mutex_exit(&proclist_lock); 2307 2308 /* 2309 * Allocate a temporary buffer to hold the arguments. 2310 */ 2311 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2312 2313 /* 2314 * Read in the ps_strings structure. 2315 */ 2316 aiov.iov_base = &pss; 2317 aiov.iov_len = sizeof(pss); 2318 auio.uio_iov = &aiov; 2319 auio.uio_iovcnt = 1; 2320 auio.uio_offset = psstr_addr; 2321 auio.uio_resid = sizeof(pss); 2322 auio.uio_rw = UIO_READ; 2323 UIO_SETUP_SYSSPACE(&auio); 2324 error = uvm_io(&vmspace->vm_map, &auio); 2325 if (error) 2326 goto done; 2327 2328 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2329 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2330 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2331 *oldlenp = sizeof(nargv); 2332 goto done; 2333 } 2334 /* 2335 * Now read the address of the argument vector. 2336 */ 2337 switch (type) { 2338 case KERN_PROC_ARGV: 2339 /* FALLTHROUGH */ 2340 case KERN_PROC_ENV: 2341 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2342 break; 2343 default: 2344 return (EINVAL); 2345 } 2346 2347 #ifdef COMPAT_NETBSD32 2348 if (p->p_flag & PK_32) 2349 len = sizeof(netbsd32_charp) * nargv; 2350 else 2351 #endif 2352 len = sizeof(char *) * nargv; 2353 2354 argv = malloc(len, M_TEMP, M_WAITOK); 2355 2356 aiov.iov_base = argv; 2357 aiov.iov_len = len; 2358 auio.uio_iov = &aiov; 2359 auio.uio_iovcnt = 1; 2360 auio.uio_offset = (off_t)(unsigned long)tmp; 2361 auio.uio_resid = len; 2362 auio.uio_rw = UIO_READ; 2363 UIO_SETUP_SYSSPACE(&auio); 2364 error = uvm_io(&vmspace->vm_map, &auio); 2365 if (error) 2366 goto done; 2367 2368 /* 2369 * Now copy each string. 2370 */ 2371 len = 0; /* bytes written to user buffer */ 2372 for (i = 0; i < nargv; i++) { 2373 int finished = 0; 2374 vaddr_t base; 2375 size_t xlen; 2376 int j; 2377 2378 #ifdef COMPAT_NETBSD32 2379 if (p->p_flag & PK_32) { 2380 netbsd32_charp *argv32; 2381 2382 argv32 = (netbsd32_charp *)argv; 2383 2384 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2385 } else 2386 #endif 2387 base = (vaddr_t)argv[i]; 2388 2389 while (!finished) { 2390 xlen = PAGE_SIZE - (base & PAGE_MASK); 2391 2392 aiov.iov_base = arg; 2393 aiov.iov_len = PAGE_SIZE; 2394 auio.uio_iov = &aiov; 2395 auio.uio_iovcnt = 1; 2396 auio.uio_offset = base; 2397 auio.uio_resid = xlen; 2398 auio.uio_rw = UIO_READ; 2399 UIO_SETUP_SYSSPACE(&auio); 2400 error = uvm_io(&vmspace->vm_map, &auio); 2401 if (error) 2402 goto done; 2403 2404 /* Look for the end of the string */ 2405 for (j = 0; j < xlen; j++) { 2406 if (arg[j] == '\0') { 2407 xlen = j + 1; 2408 finished = 1; 2409 break; 2410 } 2411 } 2412 2413 /* Check for user buffer overflow */ 2414 if (len + xlen > *oldlenp) { 2415 finished = 1; 2416 if (len > *oldlenp) 2417 xlen = 0; 2418 else 2419 xlen = *oldlenp - len; 2420 } 2421 2422 /* Copyout the page */ 2423 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2424 if (error) 2425 goto done; 2426 2427 len += xlen; 2428 base += xlen; 2429 } 2430 } 2431 *oldlenp = len; 2432 2433 done: 2434 if (argv != NULL) 2435 free(argv, M_TEMP); 2436 2437 uvmspace_free(vmspace); 2438 2439 free(arg, M_TEMP); 2440 return error; 2441 2442 out_locked: 2443 mutex_exit(&proclist_lock); 2444 return error; 2445 } 2446 2447 static int 2448 sysctl_security_setidcore(SYSCTLFN_ARGS) 2449 { 2450 int newsize, error; 2451 struct sysctlnode node; 2452 2453 node = *rnode; 2454 node.sysctl_data = &newsize; 2455 newsize = *(int *)rnode->sysctl_data; 2456 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2457 if (error || newp == NULL) 2458 return error; 2459 2460 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2461 0, NULL, NULL, NULL)) 2462 return (EPERM); 2463 2464 *(int *)rnode->sysctl_data = newsize; 2465 2466 return 0; 2467 } 2468 2469 static int 2470 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2471 { 2472 int error; 2473 char *newsetidcorename; 2474 struct sysctlnode node; 2475 2476 newsetidcorename = PNBUF_GET(); 2477 node = *rnode; 2478 node.sysctl_data = newsetidcorename; 2479 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2480 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2481 if (error || newp == NULL) { 2482 goto out; 2483 } 2484 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2485 0, NULL, NULL, NULL)) { 2486 error = EPERM; 2487 goto out; 2488 } 2489 if (strlen(newsetidcorename) == 0) { 2490 error = EINVAL; 2491 goto out; 2492 } 2493 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2494 out: 2495 PNBUF_PUT(newsetidcorename); 2496 return error; 2497 } 2498 2499 /* 2500 * sysctl helper routine for kern.cp_id node. maps cpus to their 2501 * cpuids. 2502 */ 2503 static int 2504 sysctl_kern_cpid(SYSCTLFN_ARGS) 2505 { 2506 struct sysctlnode node = *rnode; 2507 2508 #ifndef MULTIPROCESSOR 2509 uint64_t id; 2510 2511 if (namelen == 1) { 2512 if (name[0] != 0) 2513 return (ENOENT); 2514 /* 2515 * you're allowed to ask for the zero'th processor 2516 */ 2517 name++; 2518 namelen--; 2519 } 2520 node.sysctl_data = &id; 2521 node.sysctl_size = sizeof(id); 2522 id = cpu_number(); 2523 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2524 2525 #else /* MULTIPROCESSOR */ 2526 uint64_t *cp_id = NULL; 2527 int error, n = ncpu; 2528 struct cpu_info *ci; 2529 CPU_INFO_ITERATOR cii; 2530 2531 /* 2532 * here you may either retrieve a single cpu id or the whole 2533 * set. the size you get back when probing depends on what 2534 * you ask for. 2535 */ 2536 switch (namelen) { 2537 case 0: 2538 node.sysctl_size = n * sizeof(uint64_t); 2539 n = -2; /* ALL */ 2540 break; 2541 case 1: 2542 if (name[0] < 0 || name[0] >= n) 2543 return (ENOENT); /* ENOSUCHPROCESSOR */ 2544 node.sysctl_size = sizeof(uint64_t); 2545 n = name[0]; 2546 /* 2547 * adjust these so that sysctl_lookup() will be happy 2548 */ 2549 name++; 2550 namelen--; 2551 break; 2552 default: 2553 return (EINVAL); 2554 } 2555 2556 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2557 if (cp_id == NULL) 2558 return (ENOMEM); 2559 node.sysctl_data = cp_id; 2560 memset(cp_id, 0, node.sysctl_size); 2561 2562 for (CPU_INFO_FOREACH(cii, ci)) { 2563 if (n <= 0) 2564 cp_id[0] = ci->ci_cpuid; 2565 /* 2566 * if a specific processor was requested and we just 2567 * did it, we're done here 2568 */ 2569 if (n == 0) 2570 break; 2571 /* 2572 * if doing "all", skip to next cp_id slot for next processor 2573 */ 2574 if (n == -2) 2575 cp_id++; 2576 /* 2577 * if we're doing a specific processor, we're one 2578 * processor closer 2579 */ 2580 if (n > 0) 2581 n--; 2582 } 2583 2584 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2585 free(node.sysctl_data, M_TEMP); 2586 return (error); 2587 2588 #endif /* MULTIPROCESSOR */ 2589 } 2590 2591 /* 2592 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2593 * calculate on the fly taking into account integer overflow and the 2594 * current wired count. 2595 */ 2596 static int 2597 sysctl_hw_usermem(SYSCTLFN_ARGS) 2598 { 2599 u_int ui; 2600 u_quad_t uq; 2601 struct sysctlnode node; 2602 2603 node = *rnode; 2604 switch (rnode->sysctl_num) { 2605 case HW_USERMEM: 2606 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2607 ui = UINT_MAX; 2608 else 2609 ui *= PAGE_SIZE; 2610 node.sysctl_data = &ui; 2611 break; 2612 case HW_USERMEM64: 2613 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2614 node.sysctl_data = &uq; 2615 break; 2616 default: 2617 return (EINVAL); 2618 } 2619 2620 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2621 } 2622 2623 /* 2624 * sysctl helper routine for kern.cnmagic node. pulls the old value 2625 * out, encoded, and stuffs the new value in for decoding. 2626 */ 2627 static int 2628 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2629 { 2630 char magic[CNS_LEN]; 2631 int error; 2632 struct sysctlnode node; 2633 2634 if (oldp) 2635 cn_get_magic(magic, CNS_LEN); 2636 node = *rnode; 2637 node.sysctl_data = &magic[0]; 2638 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2639 if (error || newp == NULL) 2640 return (error); 2641 2642 return (cn_set_magic(magic)); 2643 } 2644 2645 static int 2646 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2647 { 2648 struct sysctlnode node; 2649 2650 node = *rnode; 2651 node.sysctl_data = &ncpu; 2652 2653 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2654 } 2655 2656 2657 /* 2658 * ******************************************************************** 2659 * section 3: public helper routines that are used for more than one 2660 * node 2661 * ******************************************************************** 2662 */ 2663 2664 /* 2665 * sysctl helper routine for the kern.root_device node and some ports' 2666 * machdep.root_device nodes. 2667 */ 2668 int 2669 sysctl_root_device(SYSCTLFN_ARGS) 2670 { 2671 struct sysctlnode node; 2672 2673 node = *rnode; 2674 node.sysctl_data = root_device->dv_xname; 2675 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2676 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2677 } 2678 2679 /* 2680 * sysctl helper routine for kern.consdev, dependent on the current 2681 * state of the console. also used for machdep.console_device on some 2682 * ports. 2683 */ 2684 int 2685 sysctl_consdev(SYSCTLFN_ARGS) 2686 { 2687 dev_t consdev; 2688 struct sysctlnode node; 2689 2690 if (cn_tab != NULL) 2691 consdev = cn_tab->cn_dev; 2692 else 2693 consdev = NODEV; 2694 node = *rnode; 2695 node.sysctl_data = &consdev; 2696 node.sysctl_size = sizeof(consdev); 2697 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2698 } 2699 2700 /* 2701 * ******************************************************************** 2702 * section 4: support for some helpers 2703 * ******************************************************************** 2704 */ 2705 2706 /* 2707 * Fill in a kinfo_proc2 structure for the specified process. 2708 */ 2709 static void 2710 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2711 { 2712 struct tty *tp; 2713 struct lwp *l, *l2; 2714 struct timeval ut, st, rt; 2715 sigset_t ss1, ss2; 2716 2717 memset(ki, 0, sizeof(*ki)); 2718 2719 ki->p_paddr = PTRTOUINT64(p); 2720 ki->p_fd = PTRTOUINT64(p->p_fd); 2721 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2722 ki->p_stats = PTRTOUINT64(p->p_stats); 2723 ki->p_limit = PTRTOUINT64(p->p_limit); 2724 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2725 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2726 ki->p_sess = PTRTOUINT64(p->p_session); 2727 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2728 ki->p_ru = PTRTOUINT64(p->p_ru); 2729 2730 ki->p_eflag = 0; 2731 ki->p_exitsig = p->p_exitsig; 2732 2733 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2734 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2735 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2736 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2737 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2738 2739 ki->p_pid = p->p_pid; 2740 if (p->p_pptr) 2741 ki->p_ppid = p->p_pptr->p_pid; 2742 else 2743 ki->p_ppid = 0; 2744 ki->p_sid = p->p_session->s_sid; 2745 ki->p__pgid = p->p_pgrp->pg_id; 2746 2747 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2748 2749 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2750 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2751 ki->p_gid = kauth_cred_getegid(p->p_cred); 2752 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2753 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2754 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2755 2756 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2757 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2758 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0]))); 2759 2760 ki->p_jobc = p->p_pgrp->pg_jobc; 2761 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2762 ki->p_tdev = tp->t_dev; 2763 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2764 ki->p_tsess = PTRTOUINT64(tp->t_session); 2765 } else { 2766 ki->p_tdev = NODEV; 2767 } 2768 2769 ki->p_estcpu = p->p_estcpu; 2770 ki->p_cpticks = p->p_cpticks; 2771 ki->p_pctcpu = p->p_pctcpu; 2772 2773 ki->p_uticks = p->p_uticks; 2774 ki->p_sticks = p->p_sticks; 2775 ki->p_iticks = p->p_iticks; 2776 2777 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2778 ki->p_traceflag = p->p_traceflag; 2779 2780 mutex_enter(&p->p_smutex); 2781 2782 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2783 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2784 2785 ss1 = p->p_sigpend.sp_set; 2786 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2787 /* This is hardly correct, but... */ 2788 sigplusset(&l->l_sigpend.sp_set, &ss1); 2789 sigplusset(&l->l_sigmask, &ss2); 2790 } 2791 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2792 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2793 2794 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2795 ki->p_realstat = p->p_stat; 2796 ki->p_nice = p->p_nice; 2797 2798 ki->p_xstat = p->p_xstat; 2799 ki->p_acflag = p->p_acflag; 2800 2801 strncpy(ki->p_comm, p->p_comm, 2802 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2803 2804 strncpy(ki->p_login, p->p_session->s_login, 2805 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2806 2807 ki->p_nlwps = p->p_nlwps; 2808 ki->p_realflag = ki->p_flag; 2809 2810 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2811 ki->p_vm_rssize = 0; 2812 ki->p_vm_tsize = 0; 2813 ki->p_vm_dsize = 0; 2814 ki->p_vm_ssize = 0; 2815 ki->p_nrlwps = 0; 2816 l = NULL; 2817 } else { 2818 struct vmspace *vm = p->p_vmspace; 2819 int tmp; 2820 2821 ki->p_vm_rssize = vm_resident_count(vm); 2822 ki->p_vm_tsize = vm->vm_tsize; 2823 ki->p_vm_dsize = vm->vm_dsize; 2824 ki->p_vm_ssize = vm->vm_ssize; 2825 2826 /* Pick a "representative" LWP */ 2827 l = proc_representative_lwp(p, &tmp, 1); 2828 lwp_lock(l); 2829 ki->p_nrlwps = tmp; 2830 ki->p_forw = PTRTOUINT64(l->l_forw); 2831 ki->p_back = PTRTOUINT64(l->l_back); 2832 ki->p_addr = PTRTOUINT64(l->l_addr); 2833 ki->p_stat = l->l_stat; 2834 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2835 ki->p_swtime = l->l_swtime; 2836 ki->p_slptime = l->l_slptime; 2837 if (l->l_stat == LSONPROC) 2838 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2839 else 2840 ki->p_schedflags = 0; 2841 ki->p_holdcnt = l->l_holdcnt; 2842 ki->p_priority = l->l_priority; 2843 ki->p_usrpri = l->l_usrpri; 2844 if (l->l_wmesg) 2845 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2846 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2847 lwp_unlock(l); 2848 } 2849 if (p->p_session->s_ttyvp) 2850 ki->p_eflag |= EPROC_CTTY; 2851 if (SESS_LEADER(p)) 2852 ki->p_eflag |= EPROC_SLEADER; 2853 2854 /* XXX Is this double check necessary? */ 2855 if (P_ZOMBIE(p)) { 2856 ki->p_uvalid = 0; 2857 ki->p_rtime_sec = 0; 2858 ki->p_rtime_usec = 0; 2859 } else { 2860 ki->p_uvalid = 1; 2861 2862 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2863 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2864 2865 calcru(p, &ut, &st, NULL, &rt); 2866 ki->p_rtime_sec = rt.tv_sec; 2867 ki->p_rtime_usec = rt.tv_usec; 2868 ki->p_uutime_sec = ut.tv_sec; 2869 ki->p_uutime_usec = ut.tv_usec; 2870 ki->p_ustime_sec = st.tv_sec; 2871 ki->p_ustime_usec = st.tv_usec; 2872 2873 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2874 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2875 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2876 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2877 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2878 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2879 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2880 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2881 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2882 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2883 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2884 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2885 2886 ki->p_uru_nvcsw = 0; 2887 ki->p_uru_nivcsw = 0; 2888 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 2889 ki->p_uru_nvcsw += l->l_nvcsw; 2890 ki->p_uru_nivcsw += l->l_nivcsw; 2891 } 2892 2893 timeradd(&p->p_stats->p_cru.ru_utime, 2894 &p->p_stats->p_cru.ru_stime, &ut); 2895 ki->p_uctime_sec = ut.tv_sec; 2896 ki->p_uctime_usec = ut.tv_usec; 2897 } 2898 #ifdef MULTIPROCESSOR 2899 if (l != NULL) 2900 ki->p_cpuid = l->l_cpu->ci_cpuid; 2901 else 2902 #endif 2903 ki->p_cpuid = KI_NOCPU; 2904 2905 mutex_exit(&p->p_smutex); 2906 } 2907 2908 /* 2909 * Fill in a kinfo_lwp structure for the specified lwp. 2910 */ 2911 static void 2912 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2913 { 2914 2915 kl->l_forw = PTRTOUINT64(l->l_forw); 2916 kl->l_back = PTRTOUINT64(l->l_back); 2917 kl->l_laddr = PTRTOUINT64(l); 2918 kl->l_addr = PTRTOUINT64(l->l_addr); 2919 kl->l_stat = l->l_stat; 2920 kl->l_lid = l->l_lid; 2921 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 2922 2923 kl->l_swtime = l->l_swtime; 2924 kl->l_slptime = l->l_slptime; 2925 if (l->l_stat == LSONPROC) 2926 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2927 else 2928 kl->l_schedflags = 0; 2929 kl->l_holdcnt = l->l_holdcnt; 2930 kl->l_priority = l->l_priority; 2931 kl->l_usrpri = l->l_usrpri; 2932 if (l->l_wmesg) 2933 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2934 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2935 #ifdef MULTIPROCESSOR 2936 kl->l_cpuid = l->l_cpu->ci_cpuid; 2937 #else 2938 kl->l_cpuid = KI_NOCPU; 2939 #endif 2940 } 2941 2942 /* 2943 * Fill in an eproc structure for the specified process. 2944 */ 2945 void 2946 fill_eproc(struct proc *p, struct eproc *ep) 2947 { 2948 struct tty *tp; 2949 struct lwp *l; 2950 2951 ep->e_paddr = p; 2952 ep->e_sess = p->p_session; 2953 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 2954 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 2955 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2956 ep->e_vm.vm_rssize = 0; 2957 ep->e_vm.vm_tsize = 0; 2958 ep->e_vm.vm_dsize = 0; 2959 ep->e_vm.vm_ssize = 0; 2960 /* ep->e_vm.vm_pmap = XXX; */ 2961 } else { 2962 struct vmspace *vm = p->p_vmspace; 2963 2964 ep->e_vm.vm_rssize = vm_resident_count(vm); 2965 ep->e_vm.vm_tsize = vm->vm_tsize; 2966 ep->e_vm.vm_dsize = vm->vm_dsize; 2967 ep->e_vm.vm_ssize = vm->vm_ssize; 2968 2969 /* Pick a "representative" LWP */ 2970 mutex_enter(&p->p_smutex); 2971 l = proc_representative_lwp(p, NULL, 1); 2972 lwp_lock(l); 2973 if (l->l_wmesg) 2974 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2975 lwp_unlock(l); 2976 mutex_exit(&p->p_smutex); 2977 } 2978 if (p->p_pptr) 2979 ep->e_ppid = p->p_pptr->p_pid; 2980 else 2981 ep->e_ppid = 0; 2982 ep->e_pgid = p->p_pgrp->pg_id; 2983 ep->e_sid = ep->e_sess->s_sid; 2984 ep->e_jobc = p->p_pgrp->pg_jobc; 2985 if ((p->p_lflag & PL_CONTROLT) && 2986 (tp = ep->e_sess->s_ttyp)) { 2987 ep->e_tdev = tp->t_dev; 2988 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2989 ep->e_tsess = tp->t_session; 2990 } else 2991 ep->e_tdev = NODEV; 2992 2993 ep->e_xsize = ep->e_xrssize = 0; 2994 ep->e_xccount = ep->e_xswrss = 0; 2995 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2996 if (SESS_LEADER(p)) 2997 ep->e_flag |= EPROC_SLEADER; 2998 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2999 } 3000 3001 u_int 3002 sysctl_map_flags(const u_int *map, u_int word) 3003 { 3004 u_int rv; 3005 3006 for (rv = 0; *map != 0; map += 2) 3007 if ((word & map[0]) != 0) 3008 rv |= map[1]; 3009 3010 return rv; 3011 } 3012
Indexes created Mon Sep 22 10:09:38 GMT 2025