init_sysctl.c revision 1.98.2.6
1 /* $NetBSD: init_sysctl.c,v 1.98.2.6 2007/08/18 05:38:35 yamt Exp $ */ 2 3 /*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Brown. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: init_sysctl.c,v 1.98.2.6 2007/08/18 05:38:35 yamt 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_SINTR, P_SINTR, 138 LW_SYSTEM, P_SYSTEM, 139 0 140 }; 141 142 static const u_int sysctl_lwpprflagmap[] = { 143 LPR_DETACHED, L_DETACHED, 144 0 145 }; 146 147 148 /* 149 * try over estimating by 5 procs/lwps 150 */ 151 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 152 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 153 154 #ifdef KTRACE 155 int dcopyout(struct lwp *, const void *, void *, size_t); 156 157 int 158 dcopyout(l, kaddr, uaddr, len) 159 struct lwp *l; 160 const void *kaddr; 161 void *uaddr; 162 size_t len; 163 { 164 int error; 165 166 error = copyout(kaddr, uaddr, len); 167 if (!error && KTRPOINT(l->l_proc, KTR_MIB)) { 168 struct iovec iov; 169 170 iov.iov_base = uaddr; 171 iov.iov_len = len; 172 ktrgenio(l, -1, UIO_READ, &iov, len, 0); 173 } 174 return error; 175 } 176 #else /* !KTRACE */ 177 #define dcopyout(l, kaddr, uaddr, len) copyout(kaddr, uaddr, len) 178 #endif /* KTRACE */ 179 180 #ifndef CPU_INFO_FOREACH 181 #define CPU_INFO_ITERATOR int 182 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 183 #endif 184 185 #ifdef DIAGNOSTIC 186 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 187 #endif 188 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 189 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 190 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 191 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 192 static int sysctl_setlen(SYSCTLFN_PROTO); 193 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 194 static int sysctl_kern_file(SYSCTLFN_PROTO); 195 static int sysctl_msgbuf(SYSCTLFN_PROTO); 196 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 197 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 198 #if NPTY > 0 199 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 200 #endif /* NPTY > 0 */ 201 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 202 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 203 static int sysctl_kern_arnd(SYSCTLFN_PROTO); 204 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 205 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 206 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 207 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 208 static int sysctl_kern_file2(SYSCTLFN_PROTO); 209 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 210 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 211 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 212 static int sysctl_doeproc(SYSCTLFN_PROTO); 213 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 214 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 215 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 216 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 217 218 static u_int sysctl_map_flags(const u_int *, u_int); 219 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 220 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 221 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 222 int); 223 224 /* 225 * ******************************************************************** 226 * section 1: setup routines 227 * ******************************************************************** 228 * these functions are stuffed into a link set for sysctl setup 229 * functions. they're never called or referenced from anywhere else. 230 * ******************************************************************** 231 */ 232 233 /* 234 * sets up the base nodes... 235 */ 236 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 237 { 238 239 sysctl_createv(clog, 0, NULL, NULL, 240 CTLFLAG_PERMANENT, 241 CTLTYPE_NODE, "kern", 242 SYSCTL_DESCR("High kernel"), 243 NULL, 0, NULL, 0, 244 CTL_KERN, CTL_EOL); 245 sysctl_createv(clog, 0, NULL, NULL, 246 CTLFLAG_PERMANENT, 247 CTLTYPE_NODE, "vm", 248 SYSCTL_DESCR("Virtual memory"), 249 NULL, 0, NULL, 0, 250 CTL_VM, CTL_EOL); 251 sysctl_createv(clog, 0, NULL, NULL, 252 CTLFLAG_PERMANENT, 253 CTLTYPE_NODE, "vfs", 254 SYSCTL_DESCR("Filesystem"), 255 NULL, 0, NULL, 0, 256 CTL_VFS, CTL_EOL); 257 sysctl_createv(clog, 0, NULL, NULL, 258 CTLFLAG_PERMANENT, 259 CTLTYPE_NODE, "net", 260 SYSCTL_DESCR("Networking"), 261 NULL, 0, NULL, 0, 262 CTL_NET, CTL_EOL); 263 sysctl_createv(clog, 0, NULL, NULL, 264 CTLFLAG_PERMANENT, 265 CTLTYPE_NODE, "debug", 266 SYSCTL_DESCR("Debugging"), 267 NULL, 0, NULL, 0, 268 CTL_DEBUG, CTL_EOL); 269 sysctl_createv(clog, 0, NULL, NULL, 270 CTLFLAG_PERMANENT, 271 CTLTYPE_NODE, "hw", 272 SYSCTL_DESCR("Generic CPU, I/O"), 273 NULL, 0, NULL, 0, 274 CTL_HW, CTL_EOL); 275 sysctl_createv(clog, 0, NULL, NULL, 276 CTLFLAG_PERMANENT, 277 CTLTYPE_NODE, "machdep", 278 SYSCTL_DESCR("Machine dependent"), 279 NULL, 0, NULL, 0, 280 CTL_MACHDEP, CTL_EOL); 281 /* 282 * this node is inserted so that the sysctl nodes in libc can 283 * operate. 284 */ 285 sysctl_createv(clog, 0, NULL, NULL, 286 CTLFLAG_PERMANENT, 287 CTLTYPE_NODE, "user", 288 SYSCTL_DESCR("User-level"), 289 NULL, 0, NULL, 0, 290 CTL_USER, CTL_EOL); 291 sysctl_createv(clog, 0, NULL, NULL, 292 CTLFLAG_PERMANENT, 293 CTLTYPE_NODE, "ddb", 294 SYSCTL_DESCR("In-kernel debugger"), 295 NULL, 0, NULL, 0, 296 CTL_DDB, CTL_EOL); 297 sysctl_createv(clog, 0, NULL, NULL, 298 CTLFLAG_PERMANENT, 299 CTLTYPE_NODE, "proc", 300 SYSCTL_DESCR("Per-process"), 301 NULL, 0, NULL, 0, 302 CTL_PROC, CTL_EOL); 303 sysctl_createv(clog, 0, NULL, NULL, 304 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 305 CTLTYPE_NODE, "vendor", 306 SYSCTL_DESCR("Vendor specific"), 307 NULL, 0, NULL, 0, 308 CTL_VENDOR, CTL_EOL); 309 sysctl_createv(clog, 0, NULL, NULL, 310 CTLFLAG_PERMANENT, 311 CTLTYPE_NODE, "emul", 312 SYSCTL_DESCR("Emulation settings"), 313 NULL, 0, NULL, 0, 314 CTL_EMUL, CTL_EOL); 315 sysctl_createv(clog, 0, NULL, NULL, 316 CTLFLAG_PERMANENT, 317 CTLTYPE_NODE, "security", 318 SYSCTL_DESCR("Security"), 319 NULL, 0, NULL, 0, 320 CTL_SECURITY, CTL_EOL); 321 } 322 323 /* 324 * this setup routine is a replacement for kern_sysctl() 325 */ 326 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 327 { 328 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 329 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 330 extern int dumponpanic; /* defined in kern/subr_prf.c */ 331 const struct sysctlnode *rnode; 332 333 sysctl_createv(clog, 0, NULL, NULL, 334 CTLFLAG_PERMANENT, 335 CTLTYPE_NODE, "kern", NULL, 336 NULL, 0, NULL, 0, 337 CTL_KERN, CTL_EOL); 338 339 sysctl_createv(clog, 0, NULL, NULL, 340 CTLFLAG_PERMANENT, 341 CTLTYPE_STRING, "ostype", 342 SYSCTL_DESCR("Operating system type"), 343 NULL, 0, &ostype, 0, 344 CTL_KERN, KERN_OSTYPE, CTL_EOL); 345 sysctl_createv(clog, 0, NULL, NULL, 346 CTLFLAG_PERMANENT, 347 CTLTYPE_STRING, "osrelease", 348 SYSCTL_DESCR("Operating system release"), 349 NULL, 0, &osrelease, 0, 350 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 351 sysctl_createv(clog, 0, NULL, NULL, 352 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 353 CTLTYPE_INT, "osrevision", 354 SYSCTL_DESCR("Operating system revision"), 355 NULL, __NetBSD_Version__, NULL, 0, 356 CTL_KERN, KERN_OSREV, CTL_EOL); 357 sysctl_createv(clog, 0, NULL, NULL, 358 CTLFLAG_PERMANENT, 359 CTLTYPE_STRING, "version", 360 SYSCTL_DESCR("Kernel version"), 361 NULL, 0, &version, 0, 362 CTL_KERN, KERN_VERSION, CTL_EOL); 363 sysctl_createv(clog, 0, NULL, NULL, 364 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 365 CTLTYPE_INT, "maxvnodes", 366 SYSCTL_DESCR("Maximum number of vnodes"), 367 sysctl_kern_maxvnodes, 0, NULL, 0, 368 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 369 sysctl_createv(clog, 0, NULL, NULL, 370 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 371 CTLTYPE_INT, "maxproc", 372 SYSCTL_DESCR("Maximum number of simultaneous processes"), 373 sysctl_kern_maxproc, 0, NULL, 0, 374 CTL_KERN, KERN_MAXPROC, CTL_EOL); 375 sysctl_createv(clog, 0, NULL, NULL, 376 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 377 CTLTYPE_INT, "maxfiles", 378 SYSCTL_DESCR("Maximum number of open files"), 379 NULL, 0, &maxfiles, 0, 380 CTL_KERN, KERN_MAXFILES, CTL_EOL); 381 sysctl_createv(clog, 0, NULL, NULL, 382 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 383 CTLTYPE_INT, "argmax", 384 SYSCTL_DESCR("Maximum number of bytes of arguments to " 385 "execve(2)"), 386 NULL, ARG_MAX, NULL, 0, 387 CTL_KERN, KERN_ARGMAX, CTL_EOL); 388 sysctl_createv(clog, 0, NULL, NULL, 389 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 390 CTLTYPE_STRING, "hostname", 391 SYSCTL_DESCR("System hostname"), 392 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 393 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 394 sysctl_createv(clog, 0, NULL, NULL, 395 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 396 CTLTYPE_INT, "hostid", 397 SYSCTL_DESCR("System host ID number"), 398 sysctl_kern_hostid, 0, NULL, 0, 399 CTL_KERN, KERN_HOSTID, CTL_EOL); 400 sysctl_createv(clog, 0, NULL, NULL, 401 CTLFLAG_PERMANENT, 402 CTLTYPE_STRUCT, "clockrate", 403 SYSCTL_DESCR("Kernel clock rates"), 404 sysctl_kern_clockrate, 0, NULL, 405 sizeof(struct clockinfo), 406 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 407 sysctl_createv(clog, 0, NULL, NULL, 408 CTLFLAG_PERMANENT, 409 CTLTYPE_INT, "hardclock_ticks", 410 SYSCTL_DESCR("Number of hardclock ticks"), 411 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 412 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 413 sysctl_createv(clog, 0, NULL, NULL, 414 CTLFLAG_PERMANENT, 415 CTLTYPE_STRUCT, "vnode", 416 SYSCTL_DESCR("System vnode table"), 417 sysctl_kern_vnode, 0, NULL, 0, 418 CTL_KERN, KERN_VNODE, CTL_EOL); 419 sysctl_createv(clog, 0, NULL, NULL, 420 CTLFLAG_PERMANENT, 421 CTLTYPE_STRUCT, "file", 422 SYSCTL_DESCR("System open file table"), 423 sysctl_kern_file, 0, NULL, 0, 424 CTL_KERN, KERN_FILE, CTL_EOL); 425 #ifndef GPROF 426 sysctl_createv(clog, 0, NULL, NULL, 427 CTLFLAG_PERMANENT, 428 CTLTYPE_NODE, "profiling", 429 SYSCTL_DESCR("Profiling information (not available)"), 430 sysctl_notavail, 0, NULL, 0, 431 CTL_KERN, KERN_PROF, CTL_EOL); 432 #endif 433 sysctl_createv(clog, 0, NULL, NULL, 434 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 435 CTLTYPE_INT, "posix1version", 436 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 437 "with which the operating system attempts " 438 "to comply"), 439 NULL, _POSIX_VERSION, NULL, 0, 440 CTL_KERN, KERN_POSIX1, CTL_EOL); 441 sysctl_createv(clog, 0, NULL, NULL, 442 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 443 CTLTYPE_INT, "ngroups", 444 SYSCTL_DESCR("Maximum number of supplemental groups"), 445 NULL, NGROUPS_MAX, NULL, 0, 446 CTL_KERN, KERN_NGROUPS, CTL_EOL); 447 sysctl_createv(clog, 0, NULL, NULL, 448 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 449 CTLTYPE_INT, "job_control", 450 SYSCTL_DESCR("Whether job control is available"), 451 NULL, 1, NULL, 0, 452 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 453 sysctl_createv(clog, 0, NULL, NULL, 454 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 455 CTLTYPE_INT, "saved_ids", 456 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 457 "available"), NULL, 458 #ifdef _POSIX_SAVED_IDS 459 1, 460 #else /* _POSIX_SAVED_IDS */ 461 0, 462 #endif /* _POSIX_SAVED_IDS */ 463 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 464 sysctl_createv(clog, 0, NULL, NULL, 465 CTLFLAG_PERMANENT, 466 CTLTYPE_STRUCT, "boottime", 467 SYSCTL_DESCR("System boot time"), 468 NULL, 0, &boottime, sizeof(boottime), 469 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 470 sysctl_createv(clog, 0, NULL, NULL, 471 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 472 CTLTYPE_STRING, "domainname", 473 SYSCTL_DESCR("YP domain name"), 474 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 475 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 476 sysctl_createv(clog, 0, NULL, NULL, 477 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 478 CTLTYPE_INT, "maxpartitions", 479 SYSCTL_DESCR("Maximum number of partitions allowed per " 480 "disk"), 481 NULL, MAXPARTITIONS, NULL, 0, 482 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 483 sysctl_createv(clog, 0, NULL, NULL, 484 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 485 CTLTYPE_INT, "rawpartition", 486 SYSCTL_DESCR("Raw partition of a disk"), 487 NULL, RAW_PART, NULL, 0, 488 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 489 sysctl_createv(clog, 0, NULL, NULL, 490 CTLFLAG_PERMANENT, 491 CTLTYPE_STRUCT, "timex", NULL, 492 sysctl_notavail, 0, NULL, 0, 493 CTL_KERN, KERN_TIMEX, CTL_EOL); 494 sysctl_createv(clog, 0, NULL, NULL, 495 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 496 CTLTYPE_INT, "rtc_offset", 497 SYSCTL_DESCR("Offset of real time clock from UTC in " 498 "minutes"), 499 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 500 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 501 sysctl_createv(clog, 0, NULL, NULL, 502 CTLFLAG_PERMANENT, 503 CTLTYPE_STRING, "root_device", 504 SYSCTL_DESCR("Name of the root device"), 505 sysctl_root_device, 0, NULL, 0, 506 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 507 sysctl_createv(clog, 0, NULL, NULL, 508 CTLFLAG_PERMANENT, 509 CTLTYPE_INT, "msgbufsize", 510 SYSCTL_DESCR("Size of the kernel message buffer"), 511 sysctl_msgbuf, 0, NULL, 0, 512 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 513 sysctl_createv(clog, 0, NULL, NULL, 514 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 515 CTLTYPE_INT, "fsync", 516 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 517 "Synchronization Option is available on " 518 "this system"), 519 NULL, 1, NULL, 0, 520 CTL_KERN, KERN_FSYNC, CTL_EOL); 521 sysctl_createv(clog, 0, NULL, NULL, 522 CTLFLAG_PERMANENT, 523 CTLTYPE_NODE, "ipc", 524 SYSCTL_DESCR("SysV IPC options"), 525 NULL, 0, NULL, 0, 526 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 527 sysctl_createv(clog, 0, NULL, NULL, 528 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 529 CTLTYPE_INT, "sysvmsg", 530 SYSCTL_DESCR("System V style message support available"), 531 NULL, 532 #ifdef SYSVMSG 533 1, 534 #else /* SYSVMSG */ 535 0, 536 #endif /* SYSVMSG */ 537 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 538 sysctl_createv(clog, 0, NULL, NULL, 539 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 540 CTLTYPE_INT, "sysvsem", 541 SYSCTL_DESCR("System V style semaphore support " 542 "available"), NULL, 543 #ifdef SYSVSEM 544 1, 545 #else /* SYSVSEM */ 546 0, 547 #endif /* SYSVSEM */ 548 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 549 sysctl_createv(clog, 0, NULL, NULL, 550 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 551 CTLTYPE_INT, "sysvshm", 552 SYSCTL_DESCR("System V style shared memory support " 553 "available"), NULL, 554 #ifdef SYSVSHM 555 1, 556 #else /* SYSVSHM */ 557 0, 558 #endif /* SYSVSHM */ 559 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 560 sysctl_createv(clog, 0, NULL, NULL, 561 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 562 CTLTYPE_INT, "synchronized_io", 563 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 564 "I/O Option is available on this system"), 565 NULL, 1, NULL, 0, 566 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 567 sysctl_createv(clog, 0, NULL, NULL, 568 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 569 CTLTYPE_INT, "iov_max", 570 SYSCTL_DESCR("Maximum number of iovec structures per " 571 "process"), 572 NULL, IOV_MAX, NULL, 0, 573 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 574 sysctl_createv(clog, 0, NULL, NULL, 575 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 576 CTLTYPE_INT, "mapped_files", 577 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 578 "Files Option is available on this system"), 579 NULL, 1, NULL, 0, 580 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 581 sysctl_createv(clog, 0, NULL, NULL, 582 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 583 CTLTYPE_INT, "memlock", 584 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 585 "Locking Option is available on this " 586 "system"), 587 NULL, 1, NULL, 0, 588 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 589 sysctl_createv(clog, 0, NULL, NULL, 590 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 591 CTLTYPE_INT, "memlock_range", 592 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 593 "Locking Option is available on this " 594 "system"), 595 NULL, 1, NULL, 0, 596 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 597 sysctl_createv(clog, 0, NULL, NULL, 598 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 599 CTLTYPE_INT, "memory_protection", 600 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 601 "Protection Option is available on this " 602 "system"), 603 NULL, 1, NULL, 0, 604 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 605 sysctl_createv(clog, 0, NULL, NULL, 606 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 607 CTLTYPE_INT, "login_name_max", 608 SYSCTL_DESCR("Maximum login name length"), 609 NULL, LOGIN_NAME_MAX, NULL, 0, 610 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 611 sysctl_createv(clog, 0, NULL, NULL, 612 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 613 CTLTYPE_STRING, "defcorename", 614 SYSCTL_DESCR("Default core file name"), 615 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 616 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 617 sysctl_createv(clog, 0, NULL, NULL, 618 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 619 CTLTYPE_INT, "logsigexit", 620 SYSCTL_DESCR("Log process exit when caused by signals"), 621 NULL, 0, &kern_logsigexit, 0, 622 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 623 sysctl_createv(clog, 0, NULL, NULL, 624 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 625 CTLTYPE_INT, "fscale", 626 SYSCTL_DESCR("Kernel fixed-point scale factor"), 627 NULL, FSCALE, NULL, 0, 628 CTL_KERN, KERN_FSCALE, CTL_EOL); 629 sysctl_createv(clog, 0, NULL, NULL, 630 CTLFLAG_PERMANENT, 631 CTLTYPE_INT, "ccpu", 632 SYSCTL_DESCR("Scheduler exponential decay value"), 633 NULL, 0, &ccpu, 0, 634 CTL_KERN, KERN_CCPU, CTL_EOL); 635 sysctl_createv(clog, 0, NULL, NULL, 636 CTLFLAG_PERMANENT, 637 CTLTYPE_STRUCT, "cp_time", 638 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 639 sysctl_kern_cptime, 0, NULL, 0, 640 CTL_KERN, KERN_CP_TIME, CTL_EOL); 641 sysctl_createv(clog, 0, NULL, NULL, 642 CTLFLAG_PERMANENT, 643 CTLTYPE_INT, "msgbuf", 644 SYSCTL_DESCR("Kernel message buffer"), 645 sysctl_msgbuf, 0, NULL, 0, 646 CTL_KERN, KERN_MSGBUF, CTL_EOL); 647 sysctl_createv(clog, 0, NULL, NULL, 648 CTLFLAG_PERMANENT, 649 CTLTYPE_STRUCT, "consdev", 650 SYSCTL_DESCR("Console device"), 651 sysctl_consdev, 0, NULL, sizeof(dev_t), 652 CTL_KERN, KERN_CONSDEV, CTL_EOL); 653 #if NPTY > 0 654 sysctl_createv(clog, 0, NULL, NULL, 655 CTLFLAG_PERMANENT, 656 CTLTYPE_INT, "maxptys", 657 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 658 sysctl_kern_maxptys, 0, NULL, 0, 659 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 660 #endif /* NPTY > 0 */ 661 sysctl_createv(clog, 0, NULL, NULL, 662 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 663 CTLTYPE_INT, "maxphys", 664 SYSCTL_DESCR("Maximum raw I/O transfer size"), 665 NULL, MAXPHYS, NULL, 0, 666 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 667 sysctl_createv(clog, 0, NULL, NULL, 668 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 669 CTLTYPE_INT, "sbmax", 670 SYSCTL_DESCR("Maximum socket buffer size"), 671 sysctl_kern_sbmax, 0, NULL, 0, 672 CTL_KERN, KERN_SBMAX, CTL_EOL); 673 sysctl_createv(clog, 0, NULL, NULL, 674 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 675 CTLTYPE_INT, "monotonic_clock", 676 SYSCTL_DESCR("Implementation version of the POSIX " 677 "1003.1b Monotonic Clock Option"), 678 /* XXX _POSIX_VERSION */ 679 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 680 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 681 sysctl_createv(clog, 0, NULL, NULL, 682 CTLFLAG_PERMANENT, 683 CTLTYPE_INT, "urandom", 684 SYSCTL_DESCR("Random integer value"), 685 sysctl_kern_urnd, 0, NULL, 0, 686 CTL_KERN, KERN_URND, CTL_EOL); 687 sysctl_createv(clog, 0, NULL, NULL, 688 CTLFLAG_PERMANENT, 689 CTLTYPE_INT, "arandom", 690 SYSCTL_DESCR("n bytes of random data"), 691 sysctl_kern_arnd, 0, NULL, 0, 692 CTL_KERN, KERN_ARND, CTL_EOL); 693 sysctl_createv(clog, 0, NULL, NULL, 694 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 695 CTLTYPE_INT, "labelsector", 696 SYSCTL_DESCR("Sector number containing the disklabel"), 697 NULL, LABELSECTOR, NULL, 0, 698 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 699 sysctl_createv(clog, 0, NULL, NULL, 700 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 701 CTLTYPE_INT, "labeloffset", 702 SYSCTL_DESCR("Offset of the disklabel within the " 703 "sector"), 704 NULL, LABELOFFSET, NULL, 0, 705 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 706 sysctl_createv(clog, 0, NULL, NULL, 707 CTLFLAG_PERMANENT, 708 CTLTYPE_NODE, "lwp", 709 SYSCTL_DESCR("System-wide LWP information"), 710 sysctl_kern_lwp, 0, NULL, 0, 711 CTL_KERN, KERN_LWP, CTL_EOL); 712 sysctl_createv(clog, 0, NULL, NULL, 713 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 714 CTLTYPE_INT, "forkfsleep", 715 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 716 "to process limits"), 717 sysctl_kern_forkfsleep, 0, NULL, 0, 718 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 719 sysctl_createv(clog, 0, NULL, NULL, 720 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 721 CTLTYPE_INT, "posix_threads", 722 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 723 "Threads option to which the system " 724 "attempts to conform"), 725 /* XXX _POSIX_VERSION */ 726 NULL, _POSIX_THREADS, NULL, 0, 727 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 728 sysctl_createv(clog, 0, NULL, NULL, 729 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 730 CTLTYPE_INT, "posix_semaphores", 731 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 732 "Semaphores option to which the system " 733 "attempts to conform"), NULL, 734 #ifdef P1003_1B_SEMAPHORE 735 200112, 736 #else /* P1003_1B_SEMAPHORE */ 737 0, 738 #endif /* P1003_1B_SEMAPHORE */ 739 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 740 sysctl_createv(clog, 0, NULL, NULL, 741 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 742 CTLTYPE_INT, "posix_barriers", 743 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 744 "Barriers option to which the system " 745 "attempts to conform"), 746 /* XXX _POSIX_VERSION */ 747 NULL, _POSIX_BARRIERS, NULL, 0, 748 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 749 sysctl_createv(clog, 0, NULL, NULL, 750 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 751 CTLTYPE_INT, "posix_timers", 752 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 753 "Timers option to which the system " 754 "attempts to conform"), 755 /* XXX _POSIX_VERSION */ 756 NULL, _POSIX_TIMERS, NULL, 0, 757 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 758 sysctl_createv(clog, 0, NULL, NULL, 759 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 760 CTLTYPE_INT, "posix_spin_locks", 761 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 762 "Locks option to which the system attempts " 763 "to conform"), 764 /* XXX _POSIX_VERSION */ 765 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 766 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 767 sysctl_createv(clog, 0, NULL, NULL, 768 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 769 CTLTYPE_INT, "posix_reader_writer_locks", 770 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 771 "Read-Write Locks option to which the " 772 "system attempts to conform"), 773 /* XXX _POSIX_VERSION */ 774 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 775 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 776 sysctl_createv(clog, 0, NULL, NULL, 777 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 778 CTLTYPE_INT, "dump_on_panic", 779 SYSCTL_DESCR("Perform a crash dump on system panic"), 780 NULL, 0, &dumponpanic, 0, 781 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 782 #ifdef DIAGNOSTIC 783 sysctl_createv(clog, 0, NULL, NULL, 784 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 785 CTLTYPE_INT, "panic_now", 786 SYSCTL_DESCR("Trigger a panic"), 787 sysctl_kern_trigger_panic, 0, NULL, 0, 788 CTL_KERN, CTL_CREATE, CTL_EOL); 789 #endif 790 sysctl_createv(clog, 0, NULL, NULL, 791 CTLFLAG_PERMANENT, 792 CTLTYPE_INT, "root_partition", 793 SYSCTL_DESCR("Root partition on the root device"), 794 sysctl_kern_root_partition, 0, NULL, 0, 795 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 796 sysctl_createv(clog, 0, NULL, NULL, 797 CTLFLAG_PERMANENT, 798 CTLTYPE_STRUCT, "drivers", 799 SYSCTL_DESCR("List of all drivers with block and " 800 "character device numbers"), 801 sysctl_kern_drivers, 0, NULL, 0, 802 CTL_KERN, KERN_DRIVERS, CTL_EOL); 803 sysctl_createv(clog, 0, NULL, NULL, 804 CTLFLAG_PERMANENT, 805 CTLTYPE_STRUCT, "file2", 806 SYSCTL_DESCR("System open file table"), 807 sysctl_kern_file2, 0, NULL, 0, 808 CTL_KERN, KERN_FILE2, CTL_EOL); 809 sysctl_createv(clog, 0, NULL, NULL, 810 CTLFLAG_PERMANENT, 811 CTLTYPE_STRUCT, "cp_id", 812 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 813 sysctl_kern_cpid, 0, NULL, 0, 814 CTL_KERN, KERN_CP_ID, CTL_EOL); 815 sysctl_createv(clog, 0, NULL, &rnode, 816 CTLFLAG_PERMANENT, 817 CTLTYPE_NODE, "coredump", 818 SYSCTL_DESCR("Coredump settings."), 819 NULL, 0, NULL, 0, 820 CTL_KERN, CTL_CREATE, CTL_EOL); 821 sysctl_createv(clog, 0, &rnode, &rnode, 822 CTLFLAG_PERMANENT, 823 CTLTYPE_NODE, "setid", 824 SYSCTL_DESCR("Set-id processes' coredump settings."), 825 NULL, 0, NULL, 0, 826 CTL_CREATE, CTL_EOL); 827 sysctl_createv(clog, 0, &rnode, NULL, 828 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 829 CTLTYPE_INT, "dump", 830 SYSCTL_DESCR("Allow set-id processes to dump core."), 831 sysctl_security_setidcore, 0, &security_setidcore_dump, 832 sizeof(security_setidcore_dump), 833 CTL_CREATE, CTL_EOL); 834 sysctl_createv(clog, 0, &rnode, NULL, 835 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 836 CTLTYPE_STRING, "path", 837 SYSCTL_DESCR("Path pattern for set-id coredumps."), 838 sysctl_security_setidcorename, 0, 839 &security_setidcore_path, 840 sizeof(security_setidcore_path), 841 CTL_CREATE, CTL_EOL); 842 sysctl_createv(clog, 0, &rnode, NULL, 843 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 844 CTLTYPE_INT, "owner", 845 SYSCTL_DESCR("Owner id for set-id processes' cores."), 846 sysctl_security_setidcore, 0, &security_setidcore_owner, 847 0, 848 CTL_CREATE, CTL_EOL); 849 sysctl_createv(clog, 0, &rnode, NULL, 850 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 851 CTLTYPE_INT, "group", 852 SYSCTL_DESCR("Group id for set-id processes' cores."), 853 sysctl_security_setidcore, 0, &security_setidcore_group, 854 0, 855 CTL_CREATE, CTL_EOL); 856 sysctl_createv(clog, 0, &rnode, NULL, 857 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 858 CTLTYPE_INT, "mode", 859 SYSCTL_DESCR("Mode for set-id processes' cores."), 860 sysctl_security_setidcore, 0, &security_setidcore_mode, 861 0, 862 CTL_CREATE, CTL_EOL); 863 } 864 865 SYSCTL_SETUP(sysctl_kern_proc_setup, 866 "sysctl kern.proc/proc2/proc_args subtree setup") 867 { 868 869 sysctl_createv(clog, 0, NULL, NULL, 870 CTLFLAG_PERMANENT, 871 CTLTYPE_NODE, "kern", NULL, 872 NULL, 0, NULL, 0, 873 CTL_KERN, CTL_EOL); 874 875 sysctl_createv(clog, 0, NULL, NULL, 876 CTLFLAG_PERMANENT, 877 CTLTYPE_NODE, "proc", 878 SYSCTL_DESCR("System-wide process information"), 879 sysctl_doeproc, 0, NULL, 0, 880 CTL_KERN, KERN_PROC, CTL_EOL); 881 sysctl_createv(clog, 0, NULL, NULL, 882 CTLFLAG_PERMANENT, 883 CTLTYPE_NODE, "proc2", 884 SYSCTL_DESCR("Machine-independent process information"), 885 sysctl_doeproc, 0, NULL, 0, 886 CTL_KERN, KERN_PROC2, CTL_EOL); 887 sysctl_createv(clog, 0, NULL, NULL, 888 CTLFLAG_PERMANENT, 889 CTLTYPE_NODE, "proc_args", 890 SYSCTL_DESCR("Process argument information"), 891 sysctl_kern_proc_args, 0, NULL, 0, 892 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 893 894 /* 895 "nodes" under these: 896 897 KERN_PROC_ALL 898 KERN_PROC_PID pid 899 KERN_PROC_PGRP pgrp 900 KERN_PROC_SESSION sess 901 KERN_PROC_TTY tty 902 KERN_PROC_UID uid 903 KERN_PROC_RUID uid 904 KERN_PROC_GID gid 905 KERN_PROC_RGID gid 906 907 all in all, probably not worth the effort... 908 */ 909 } 910 911 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 912 { 913 u_int u; 914 u_quad_t q; 915 916 sysctl_createv(clog, 0, NULL, NULL, 917 CTLFLAG_PERMANENT, 918 CTLTYPE_NODE, "hw", NULL, 919 NULL, 0, NULL, 0, 920 CTL_HW, CTL_EOL); 921 922 sysctl_createv(clog, 0, NULL, NULL, 923 CTLFLAG_PERMANENT, 924 CTLTYPE_STRING, "machine", 925 SYSCTL_DESCR("Machine class"), 926 NULL, 0, machine, 0, 927 CTL_HW, HW_MACHINE, CTL_EOL); 928 sysctl_createv(clog, 0, NULL, NULL, 929 CTLFLAG_PERMANENT, 930 CTLTYPE_STRING, "model", 931 SYSCTL_DESCR("Machine model"), 932 NULL, 0, cpu_model, 0, 933 CTL_HW, HW_MODEL, CTL_EOL); 934 sysctl_createv(clog, 0, NULL, NULL, 935 CTLFLAG_PERMANENT, 936 CTLTYPE_INT, "ncpu", 937 SYSCTL_DESCR("Number of active CPUs"), 938 sysctl_hw_ncpu, 0, NULL, 0, 939 CTL_HW, HW_NCPU, CTL_EOL); 940 sysctl_createv(clog, 0, NULL, NULL, 941 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 942 CTLTYPE_INT, "byteorder", 943 SYSCTL_DESCR("System byte order"), 944 NULL, BYTE_ORDER, NULL, 0, 945 CTL_HW, HW_BYTEORDER, CTL_EOL); 946 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 947 UINT_MAX : physmem * PAGE_SIZE; 948 sysctl_createv(clog, 0, NULL, NULL, 949 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 950 CTLTYPE_INT, "physmem", 951 SYSCTL_DESCR("Bytes of physical memory"), 952 NULL, u, NULL, 0, 953 CTL_HW, HW_PHYSMEM, CTL_EOL); 954 sysctl_createv(clog, 0, NULL, NULL, 955 CTLFLAG_PERMANENT, 956 CTLTYPE_INT, "usermem", 957 SYSCTL_DESCR("Bytes of non-kernel memory"), 958 sysctl_hw_usermem, 0, NULL, 0, 959 CTL_HW, HW_USERMEM, CTL_EOL); 960 sysctl_createv(clog, 0, NULL, NULL, 961 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 962 CTLTYPE_INT, "pagesize", 963 SYSCTL_DESCR("Software page size"), 964 NULL, PAGE_SIZE, NULL, 0, 965 CTL_HW, HW_PAGESIZE, CTL_EOL); 966 sysctl_createv(clog, 0, NULL, NULL, 967 CTLFLAG_PERMANENT, 968 CTLTYPE_STRING, "machine_arch", 969 SYSCTL_DESCR("Machine CPU class"), 970 NULL, 0, machine_arch, 0, 971 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 972 sysctl_createv(clog, 0, NULL, NULL, 973 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 974 CTLTYPE_INT, "alignbytes", 975 SYSCTL_DESCR("Alignment constraint for all possible " 976 "data types"), 977 NULL, ALIGNBYTES, NULL, 0, 978 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 979 sysctl_createv(clog, 0, NULL, NULL, 980 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 981 CTLTYPE_STRING, "cnmagic", 982 SYSCTL_DESCR("Console magic key sequence"), 983 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 984 CTL_HW, HW_CNMAGIC, CTL_EOL); 985 q = (u_quad_t)physmem * PAGE_SIZE; 986 sysctl_createv(clog, 0, NULL, NULL, 987 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 988 CTLTYPE_QUAD, "physmem64", 989 SYSCTL_DESCR("Bytes of physical memory"), 990 NULL, q, NULL, 0, 991 CTL_HW, HW_PHYSMEM64, CTL_EOL); 992 sysctl_createv(clog, 0, NULL, NULL, 993 CTLFLAG_PERMANENT, 994 CTLTYPE_QUAD, "usermem64", 995 SYSCTL_DESCR("Bytes of non-kernel memory"), 996 sysctl_hw_usermem, 0, NULL, 0, 997 CTL_HW, HW_USERMEM64, CTL_EOL); 998 } 999 1000 #ifdef DEBUG 1001 /* 1002 * Debugging related system variables. 1003 */ 1004 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 1005 struct ctldebug debug5, debug6, debug7, debug8, debug9; 1006 struct ctldebug debug10, debug11, debug12, debug13, debug14; 1007 struct ctldebug debug15, debug16, debug17, debug18, debug19; 1008 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 1009 &debug0, &debug1, &debug2, &debug3, &debug4, 1010 &debug5, &debug6, &debug7, &debug8, &debug9, 1011 &debug10, &debug11, &debug12, &debug13, &debug14, 1012 &debug15, &debug16, &debug17, &debug18, &debug19, 1013 }; 1014 1015 /* 1016 * this setup routine is a replacement for debug_sysctl() 1017 * 1018 * note that it creates several nodes per defined debug variable 1019 */ 1020 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1021 { 1022 struct ctldebug *cdp; 1023 char nodename[20]; 1024 int i; 1025 1026 /* 1027 * two ways here: 1028 * 1029 * the "old" way (debug.name -> value) which was emulated by 1030 * the sysctl(8) binary 1031 * 1032 * the new way, which the sysctl(8) binary was actually using 1033 1034 node debug 1035 node debug.0 1036 string debug.0.name 1037 int debug.0.value 1038 int debug.name 1039 1040 */ 1041 1042 sysctl_createv(clog, 0, NULL, NULL, 1043 CTLFLAG_PERMANENT, 1044 CTLTYPE_NODE, "debug", NULL, 1045 NULL, 0, NULL, 0, 1046 CTL_DEBUG, CTL_EOL); 1047 1048 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1049 cdp = debugvars[i]; 1050 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1051 continue; 1052 1053 snprintf(nodename, sizeof(nodename), "debug%d", i); 1054 sysctl_createv(clog, 0, NULL, NULL, 1055 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1056 CTLTYPE_NODE, nodename, NULL, 1057 NULL, 0, NULL, 0, 1058 CTL_DEBUG, i, CTL_EOL); 1059 sysctl_createv(clog, 0, NULL, NULL, 1060 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1061 CTLTYPE_STRING, "name", NULL, 1062 /*XXXUNCONST*/ 1063 NULL, 0, __UNCONST(cdp->debugname), 0, 1064 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1065 sysctl_createv(clog, 0, NULL, NULL, 1066 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1067 CTLTYPE_INT, "value", NULL, 1068 NULL, 0, cdp->debugvar, 0, 1069 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1070 sysctl_createv(clog, 0, NULL, NULL, 1071 CTLFLAG_PERMANENT, 1072 CTLTYPE_INT, cdp->debugname, NULL, 1073 NULL, 0, cdp->debugvar, 0, 1074 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1075 } 1076 } 1077 #endif /* DEBUG */ 1078 1079 /* 1080 * ******************************************************************** 1081 * section 2: private node-specific helper routines. 1082 * ******************************************************************** 1083 */ 1084 1085 #ifdef DIAGNOSTIC 1086 static int 1087 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1088 { 1089 int newtrig, error; 1090 struct sysctlnode node; 1091 1092 newtrig = 0; 1093 node = *rnode; 1094 node.sysctl_data = &newtrig; 1095 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1096 if (error || newp == NULL) 1097 return (error); 1098 1099 if (newtrig != 0) 1100 panic("Panic triggered"); 1101 1102 return (error); 1103 } 1104 #endif 1105 1106 /* 1107 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1108 * new value is lower than desiredvnodes and then calls reinit 1109 * routines that needs to adjust to the new value. 1110 */ 1111 static int 1112 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1113 { 1114 int error, new_vnodes, old_vnodes; 1115 struct sysctlnode node; 1116 1117 new_vnodes = desiredvnodes; 1118 node = *rnode; 1119 node.sysctl_data = &new_vnodes; 1120 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1121 if (error || newp == NULL) 1122 return (error); 1123 1124 old_vnodes = desiredvnodes; 1125 desiredvnodes = new_vnodes; 1126 if (new_vnodes < old_vnodes) { 1127 error = vfs_drainvnodes(new_vnodes, l); 1128 if (error) { 1129 desiredvnodes = old_vnodes; 1130 return (error); 1131 } 1132 } 1133 vfs_reinit(); 1134 nchreinit(); 1135 1136 return (0); 1137 } 1138 1139 /* 1140 * sysctl helper routine for rtc_offset - set time after changes 1141 */ 1142 static int 1143 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1144 { 1145 struct timespec ts, delta; 1146 int error, new_rtc_offset; 1147 struct sysctlnode node; 1148 1149 new_rtc_offset = rtc_offset; 1150 node = *rnode; 1151 node.sysctl_data = &new_rtc_offset; 1152 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1153 if (error || newp == NULL) 1154 return (error); 1155 1156 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1157 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1158 (void *)(u_long)new_rtc_offset, NULL, NULL)) 1159 return (EPERM); 1160 if (rtc_offset == new_rtc_offset) 1161 return (0); 1162 1163 /* if we change the offset, adjust the time */ 1164 nanotime(&ts); 1165 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1166 delta.tv_nsec = 0; 1167 timespecadd(&ts, &delta, &ts); 1168 rtc_offset = new_rtc_offset; 1169 settime(l->l_proc, &ts); 1170 1171 return (0); 1172 } 1173 1174 /* 1175 * sysctl helper routine for kern.maxproc. ensures that the new 1176 * values are not too low or too high. 1177 */ 1178 static int 1179 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1180 { 1181 int error, nmaxproc; 1182 struct sysctlnode node; 1183 1184 nmaxproc = maxproc; 1185 node = *rnode; 1186 node.sysctl_data = &nmaxproc; 1187 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1188 if (error || newp == NULL) 1189 return (error); 1190 1191 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1192 return (EINVAL); 1193 #ifdef __HAVE_CPU_MAXPROC 1194 if (nmaxproc > cpu_maxproc()) 1195 return (EINVAL); 1196 #endif 1197 maxproc = nmaxproc; 1198 1199 return (0); 1200 } 1201 1202 /* 1203 * sysctl helper function for kern.hostid. the hostid is a long, but 1204 * we export it as an int, so we need to give it a little help. 1205 */ 1206 static int 1207 sysctl_kern_hostid(SYSCTLFN_ARGS) 1208 { 1209 int error, inthostid; 1210 struct sysctlnode node; 1211 1212 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1213 node = *rnode; 1214 node.sysctl_data = &inthostid; 1215 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1216 if (error || newp == NULL) 1217 return (error); 1218 1219 hostid = (unsigned)inthostid; 1220 1221 return (0); 1222 } 1223 1224 /* 1225 * sysctl helper function for kern.hostname and kern.domainnname. 1226 * resets the relevant recorded length when the underlying name is 1227 * changed. 1228 */ 1229 static int 1230 sysctl_setlen(SYSCTLFN_ARGS) 1231 { 1232 int error; 1233 1234 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1235 if (error || newp == NULL) 1236 return (error); 1237 1238 switch (rnode->sysctl_num) { 1239 case KERN_HOSTNAME: 1240 hostnamelen = strlen((const char*)rnode->sysctl_data); 1241 break; 1242 case KERN_DOMAINNAME: 1243 domainnamelen = strlen((const char*)rnode->sysctl_data); 1244 break; 1245 } 1246 1247 return (0); 1248 } 1249 1250 /* 1251 * sysctl helper routine for kern.clockrate. assembles a struct on 1252 * the fly to be returned to the caller. 1253 */ 1254 static int 1255 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1256 { 1257 struct clockinfo clkinfo; 1258 struct sysctlnode node; 1259 1260 clkinfo.tick = tick; 1261 clkinfo.tickadj = tickadj; 1262 clkinfo.hz = hz; 1263 clkinfo.profhz = profhz; 1264 clkinfo.stathz = stathz ? stathz : hz; 1265 1266 node = *rnode; 1267 node.sysctl_data = &clkinfo; 1268 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1269 } 1270 1271 1272 /* 1273 * sysctl helper routine for kern.file pseudo-subtree. 1274 */ 1275 static int 1276 sysctl_kern_file(SYSCTLFN_ARGS) 1277 { 1278 int error; 1279 size_t buflen; 1280 struct file *fp; 1281 char *start, *where; 1282 1283 start = where = oldp; 1284 buflen = *oldlenp; 1285 if (where == NULL) { 1286 /* 1287 * overestimate by 10 files 1288 */ 1289 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1290 return (0); 1291 } 1292 1293 /* 1294 * first dcopyout filehead 1295 */ 1296 if (buflen < sizeof(filehead)) { 1297 *oldlenp = 0; 1298 return (0); 1299 } 1300 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1301 if (error) 1302 return (error); 1303 buflen -= sizeof(filehead); 1304 where += sizeof(filehead); 1305 1306 /* 1307 * followed by an array of file structures 1308 */ 1309 LIST_FOREACH(fp, &filehead, f_list) { 1310 if (kauth_authorize_generic(l->l_cred, 1311 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1312 continue; 1313 if (buflen < sizeof(struct file)) { 1314 *oldlenp = where - start; 1315 return (ENOMEM); 1316 } 1317 error = dcopyout(l, fp, where, sizeof(struct file)); 1318 if (error) 1319 return (error); 1320 buflen -= sizeof(struct file); 1321 where += sizeof(struct file); 1322 } 1323 *oldlenp = where - start; 1324 return (0); 1325 } 1326 1327 /* 1328 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1329 * former it merely checks the message buffer is set up. for the latter, 1330 * it also copies out the data if necessary. 1331 */ 1332 static int 1333 sysctl_msgbuf(SYSCTLFN_ARGS) 1334 { 1335 char *where = oldp; 1336 size_t len, maxlen; 1337 long beg, end; 1338 int error; 1339 1340 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1341 msgbufenabled = 0; 1342 return (ENXIO); 1343 } 1344 1345 switch (rnode->sysctl_num) { 1346 case KERN_MSGBUFSIZE: { 1347 struct sysctlnode node = *rnode; 1348 int msg_bufs = (int)msgbufp->msg_bufs; 1349 node.sysctl_data = &msg_bufs; 1350 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1351 } 1352 case KERN_MSGBUF: 1353 break; 1354 default: 1355 return (EOPNOTSUPP); 1356 } 1357 1358 if (newp != NULL) 1359 return (EPERM); 1360 1361 if (oldp == NULL) { 1362 /* always return full buffer size */ 1363 *oldlenp = msgbufp->msg_bufs; 1364 return (0); 1365 } 1366 1367 error = 0; 1368 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1369 1370 /* 1371 * First, copy from the write pointer to the end of 1372 * message buffer. 1373 */ 1374 beg = msgbufp->msg_bufx; 1375 end = msgbufp->msg_bufs; 1376 while (maxlen > 0) { 1377 len = MIN(end - beg, maxlen); 1378 if (len == 0) 1379 break; 1380 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1381 if (error) 1382 break; 1383 where += len; 1384 maxlen -= len; 1385 1386 /* 1387 * ... then, copy from the beginning of message buffer to 1388 * the write pointer. 1389 */ 1390 beg = 0; 1391 end = msgbufp->msg_bufx; 1392 } 1393 1394 return (error); 1395 } 1396 1397 /* 1398 * sysctl helper routine for kern.defcorename. in the case of a new 1399 * string being assigned, check that it's not a zero-length string. 1400 * (XXX the check in -current doesn't work, but do we really care?) 1401 */ 1402 static int 1403 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1404 { 1405 int error; 1406 char *newcorename; 1407 struct sysctlnode node; 1408 1409 newcorename = PNBUF_GET(); 1410 node = *rnode; 1411 node.sysctl_data = &newcorename[0]; 1412 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1413 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1414 if (error || newp == NULL) { 1415 goto done; 1416 } 1417 1418 /* 1419 * when sysctl_lookup() deals with a string, it's guaranteed 1420 * to come back nul terminated. so there. :) 1421 */ 1422 if (strlen(newcorename) == 0) { 1423 error = EINVAL; 1424 } else { 1425 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1426 error = 0; 1427 } 1428 done: 1429 PNBUF_PUT(newcorename); 1430 return error; 1431 } 1432 1433 /* 1434 * sysctl helper routine for kern.cp_time node. adds up cpu time 1435 * across all cpus. 1436 */ 1437 static int 1438 sysctl_kern_cptime(SYSCTLFN_ARGS) 1439 { 1440 struct sysctlnode node = *rnode; 1441 1442 #ifndef MULTIPROCESSOR 1443 1444 if (namelen == 1) { 1445 if (name[0] != 0) 1446 return (ENOENT); 1447 /* 1448 * you're allowed to ask for the zero'th processor 1449 */ 1450 name++; 1451 namelen--; 1452 } 1453 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1454 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1455 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1456 1457 #else /* MULTIPROCESSOR */ 1458 1459 uint64_t *cp_time = NULL; 1460 int error, n = ncpu, i; 1461 struct cpu_info *ci; 1462 CPU_INFO_ITERATOR cii; 1463 1464 /* 1465 * if you specifically pass a buffer that is the size of the 1466 * sum, or if you are probing for the size, you get the "sum" 1467 * of cp_time (and the size thereof) across all processors. 1468 * 1469 * alternately, you can pass an additional mib number and get 1470 * cp_time for that particular processor. 1471 */ 1472 switch (namelen) { 1473 case 0: 1474 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1475 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1476 n = -1; /* SUM */ 1477 } 1478 else { 1479 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1480 n = -2; /* ALL */ 1481 } 1482 break; 1483 case 1: 1484 if (name[0] < 0 || name[0] >= n) 1485 return (ENOENT); /* ENOSUCHPROCESSOR */ 1486 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1487 n = name[0]; 1488 /* 1489 * adjust these so that sysctl_lookup() will be happy 1490 */ 1491 name++; 1492 namelen--; 1493 break; 1494 default: 1495 return (EINVAL); 1496 } 1497 1498 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1499 if (cp_time == NULL) 1500 return (ENOMEM); 1501 node.sysctl_data = cp_time; 1502 memset(cp_time, 0, node.sysctl_size); 1503 1504 for (CPU_INFO_FOREACH(cii, ci)) { 1505 if (n <= 0) 1506 for (i = 0; i < CPUSTATES; i++) 1507 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1508 /* 1509 * if a specific processor was requested and we just 1510 * did it, we're done here 1511 */ 1512 if (n == 0) 1513 break; 1514 /* 1515 * if doing "all", skip to next cp_time set for next processor 1516 */ 1517 if (n == -2) 1518 cp_time += CPUSTATES; 1519 /* 1520 * if we're doing a specific processor, we're one 1521 * processor closer 1522 */ 1523 if (n > 0) 1524 n--; 1525 } 1526 1527 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1528 free(node.sysctl_data, M_TEMP); 1529 return (error); 1530 1531 #endif /* MULTIPROCESSOR */ 1532 } 1533 1534 #if NPTY > 0 1535 /* 1536 * sysctl helper routine for kern.maxptys. ensures that any new value 1537 * is acceptable to the pty subsystem. 1538 */ 1539 static int 1540 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1541 { 1542 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1543 int error, xmax; 1544 struct sysctlnode node; 1545 1546 /* get current value of maxptys */ 1547 xmax = pty_maxptys(0, 0); 1548 1549 node = *rnode; 1550 node.sysctl_data = &xmax; 1551 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1552 if (error || newp == NULL) 1553 return (error); 1554 1555 if (xmax != pty_maxptys(xmax, 1)) 1556 return (EINVAL); 1557 1558 return (0); 1559 } 1560 #endif /* NPTY > 0 */ 1561 1562 /* 1563 * sysctl helper routine for kern.sbmax. basically just ensures that 1564 * any new value is not too small. 1565 */ 1566 static int 1567 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1568 { 1569 int error, new_sbmax; 1570 struct sysctlnode node; 1571 1572 new_sbmax = sb_max; 1573 node = *rnode; 1574 node.sysctl_data = &new_sbmax; 1575 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1576 if (error || newp == NULL) 1577 return (error); 1578 1579 error = sb_max_set(new_sbmax); 1580 1581 return (error); 1582 } 1583 1584 /* 1585 * sysctl helper routine for kern.urandom node. picks a random number 1586 * for you. 1587 */ 1588 static int 1589 sysctl_kern_urnd(SYSCTLFN_ARGS) 1590 { 1591 #if NRND > 0 1592 int v; 1593 1594 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1595 struct sysctlnode node = *rnode; 1596 node.sysctl_data = &v; 1597 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1598 } 1599 else 1600 return (EIO); /*XXX*/ 1601 #else 1602 return (EOPNOTSUPP); 1603 #endif 1604 } 1605 1606 /* 1607 * sysctl helper routine for kern.arandom node. picks a random number 1608 * for you. 1609 */ 1610 static int 1611 sysctl_kern_arnd(SYSCTLFN_ARGS) 1612 { 1613 #if NRND > 0 1614 int error; 1615 void *v; 1616 struct sysctlnode node = *rnode; 1617 1618 if (*oldlenp == 0) 1619 return 0; 1620 if (*oldlenp > 8192) 1621 return E2BIG; 1622 1623 v = malloc(*oldlenp, M_TEMP, M_WAITOK); 1624 1625 arc4randbytes(v, *oldlenp); 1626 node.sysctl_data = v; 1627 node.sysctl_size = *oldlenp; 1628 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1629 free(v, M_TEMP); 1630 return error; 1631 #else 1632 return (EOPNOTSUPP); 1633 #endif 1634 } 1635 /* 1636 * sysctl helper routine to do kern.lwp.* work. 1637 */ 1638 static int 1639 sysctl_kern_lwp(SYSCTLFN_ARGS) 1640 { 1641 struct kinfo_lwp klwp; 1642 struct proc *p; 1643 struct lwp *l2; 1644 char *where, *dp; 1645 int pid, elem_size, elem_count; 1646 int buflen, needed, error; 1647 1648 if (namelen == 1 && name[0] == CTL_QUERY) 1649 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1650 1651 dp = where = oldp; 1652 buflen = where != NULL ? *oldlenp : 0; 1653 error = needed = 0; 1654 1655 if (newp != NULL || namelen != 3) 1656 return (EINVAL); 1657 pid = name[0]; 1658 elem_size = name[1]; 1659 elem_count = name[2]; 1660 1661 mutex_enter(&proclist_lock); 1662 if (pid == -1) { 1663 LIST_FOREACH(l2, &alllwp, l_list) { 1664 if (buflen >= elem_size && elem_count > 0) { 1665 lwp_lock(l2); 1666 fill_lwp(l2, &klwp); 1667 lwp_unlock(l2); 1668 1669 /* 1670 * Copy out elem_size, but not larger than 1671 * the size of a struct kinfo_proc2. 1672 */ 1673 error = dcopyout(l, &klwp, dp, 1674 min(sizeof(klwp), elem_size)); 1675 if (error) 1676 goto cleanup; 1677 dp += elem_size; 1678 buflen -= elem_size; 1679 elem_count--; 1680 } 1681 needed += elem_size; 1682 } 1683 } else { 1684 p = p_find(pid, PFIND_LOCKED); 1685 if (p == NULL) { 1686 mutex_exit(&proclist_lock); 1687 return (ESRCH); 1688 } 1689 mutex_enter(&p->p_smutex); 1690 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1691 if (buflen >= elem_size && elem_count > 0) { 1692 struct lwp *l3; 1693 1694 lwp_lock(l2); 1695 fill_lwp(l2, &klwp); 1696 lwp_unlock(l2); 1697 mutex_exit(&p->p_smutex); 1698 /* 1699 * Copy out elem_size, but not larger than 1700 * the size of a struct kinfo_proc2. 1701 */ 1702 error = dcopyout(l, &klwp, dp, 1703 min(sizeof(klwp), elem_size)); 1704 if (error) { 1705 goto cleanup; 1706 } 1707 mutex_enter(&p->p_smutex); 1708 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1709 if (l2 == l3) 1710 break; 1711 } 1712 if (l2 == NULL) { 1713 mutex_exit(&p->p_smutex); 1714 error = EAGAIN; 1715 goto cleanup; 1716 } 1717 dp += elem_size; 1718 buflen -= elem_size; 1719 elem_count--; 1720 } 1721 needed += elem_size; 1722 } 1723 mutex_exit(&p->p_smutex); 1724 } 1725 mutex_exit(&proclist_lock); 1726 1727 if (where != NULL) { 1728 *oldlenp = dp - where; 1729 if (needed > *oldlenp) 1730 return (ENOMEM); 1731 } else { 1732 needed += KERN_LWPSLOP; 1733 *oldlenp = needed; 1734 } 1735 return (0); 1736 cleanup: 1737 mutex_exit(&proclist_lock); 1738 return (error); 1739 } 1740 1741 /* 1742 * sysctl helper routine for kern.forkfsleep node. ensures that the 1743 * given value is not too large or two small, and is at least one 1744 * timer tick if not zero. 1745 */ 1746 static int 1747 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1748 { 1749 /* userland sees value in ms, internally is in ticks */ 1750 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1751 int error, timo, lsleep; 1752 struct sysctlnode node; 1753 1754 lsleep = forkfsleep * 1000 / hz; 1755 node = *rnode; 1756 node.sysctl_data = &lsleep; 1757 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1758 if (error || newp == NULL) 1759 return (error); 1760 1761 /* refuse negative values, and overly 'long time' */ 1762 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1763 return (EINVAL); 1764 1765 timo = mstohz(lsleep); 1766 1767 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1768 if (lsleep != 0 && timo == 0) 1769 forkfsleep = 1; 1770 else 1771 forkfsleep = timo; 1772 1773 return (0); 1774 } 1775 1776 /* 1777 * sysctl helper routine for kern.root_partition 1778 */ 1779 static int 1780 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1781 { 1782 int rootpart = DISKPART(rootdev); 1783 struct sysctlnode node = *rnode; 1784 1785 node.sysctl_data = &rootpart; 1786 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1787 } 1788 1789 /* 1790 * sysctl helper function for kern.drivers 1791 */ 1792 static int 1793 sysctl_kern_drivers(SYSCTLFN_ARGS) 1794 { 1795 int error; 1796 size_t buflen; 1797 struct kinfo_drivers kd; 1798 char *start, *where; 1799 const char *dname; 1800 int i; 1801 extern struct devsw_conv *devsw_conv; 1802 extern int max_devsw_convs; 1803 1804 if (newp != NULL || namelen != 0) 1805 return (EINVAL); 1806 1807 start = where = oldp; 1808 buflen = *oldlenp; 1809 if (where == NULL) { 1810 *oldlenp = max_devsw_convs * sizeof kd; 1811 return 0; 1812 } 1813 1814 /* 1815 * An array of kinfo_drivers structures 1816 */ 1817 error = 0; 1818 for (i = 0; i < max_devsw_convs; i++) { 1819 dname = devsw_conv[i].d_name; 1820 if (dname == NULL) 1821 continue; 1822 if (buflen < sizeof kd) { 1823 error = ENOMEM; 1824 break; 1825 } 1826 memset(&kd, 0, sizeof(kd)); 1827 kd.d_bmajor = devsw_conv[i].d_bmajor; 1828 kd.d_cmajor = devsw_conv[i].d_cmajor; 1829 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1830 error = dcopyout(l, &kd, where, sizeof kd); 1831 if (error != 0) 1832 break; 1833 buflen -= sizeof kd; 1834 where += sizeof kd; 1835 } 1836 *oldlenp = where - start; 1837 return error; 1838 } 1839 1840 /* 1841 * sysctl helper function for kern.file2 1842 */ 1843 static int 1844 sysctl_kern_file2(SYSCTLFN_ARGS) 1845 { 1846 struct proc *p; 1847 struct file *fp; 1848 struct filedesc *fd; 1849 struct kinfo_file kf; 1850 char *dp; 1851 u_int i, op; 1852 size_t len, needed, elem_size, out_size; 1853 int error, arg, elem_count; 1854 1855 if (namelen == 1 && name[0] == CTL_QUERY) 1856 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1857 1858 if (namelen != 4) 1859 return (EINVAL); 1860 1861 error = 0; 1862 dp = oldp; 1863 len = (oldp != NULL) ? *oldlenp : 0; 1864 op = name[0]; 1865 arg = name[1]; 1866 elem_size = name[2]; 1867 elem_count = name[3]; 1868 out_size = MIN(sizeof(kf), elem_size); 1869 needed = 0; 1870 1871 if (elem_size < 1 || elem_count < 0) 1872 return (EINVAL); 1873 1874 switch (op) { 1875 case KERN_FILE_BYFILE: 1876 /* 1877 * doesn't use arg so it must be zero 1878 */ 1879 if (arg != 0) 1880 return (EINVAL); 1881 LIST_FOREACH(fp, &filehead, f_list) { 1882 if (kauth_authorize_generic(l->l_cred, 1883 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1884 continue; 1885 if (len >= elem_size && elem_count > 0) { 1886 fill_file(&kf, fp, NULL, 0); 1887 error = dcopyout(l, &kf, dp, out_size); 1888 if (error) 1889 break; 1890 dp += elem_size; 1891 len -= elem_size; 1892 } 1893 if (elem_count > 0) { 1894 needed += elem_size; 1895 if (elem_count != INT_MAX) 1896 elem_count--; 1897 } 1898 } 1899 break; 1900 case KERN_FILE_BYPID: 1901 if (arg < -1) 1902 /* -1 means all processes */ 1903 return (EINVAL); 1904 mutex_enter(&proclist_lock); 1905 PROCLIST_FOREACH(p, &allproc) { 1906 if (p->p_stat == SIDL) 1907 /* skip embryonic processes */ 1908 continue; 1909 if (kauth_authorize_process(l->l_cred, 1910 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 1911 continue; 1912 if (arg > 0 && p->p_pid != arg) 1913 /* pick only the one we want */ 1914 /* XXX want 0 to mean "kernel files" */ 1915 continue; 1916 fd = p->p_fd; 1917 for (i = 0; i < fd->fd_nfiles; i++) { 1918 fp = fd->fd_ofiles[i]; 1919 if (fp == NULL || !FILE_IS_USABLE(fp)) 1920 continue; 1921 if (len >= elem_size && elem_count > 0) { 1922 fill_file(&kf, fd->fd_ofiles[i], 1923 p, i); 1924 error = dcopyout(l, &kf, dp, out_size); 1925 if (error) 1926 break; 1927 dp += elem_size; 1928 len -= elem_size; 1929 } 1930 if (elem_count > 0) { 1931 needed += elem_size; 1932 if (elem_count != INT_MAX) 1933 elem_count--; 1934 } 1935 } 1936 } 1937 mutex_exit(&proclist_lock); 1938 break; 1939 default: 1940 return (EINVAL); 1941 } 1942 1943 if (oldp == NULL) 1944 needed += KERN_FILESLOP * elem_size; 1945 *oldlenp = needed; 1946 1947 return (error); 1948 } 1949 1950 static void 1951 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 1952 { 1953 1954 memset(kp, 0, sizeof(*kp)); 1955 1956 kp->ki_fileaddr = PTRTOUINT64(fp); 1957 kp->ki_flag = fp->f_flag; 1958 kp->ki_iflags = fp->f_iflags; 1959 kp->ki_ftype = fp->f_type; 1960 kp->ki_count = fp->f_count; 1961 kp->ki_msgcount = fp->f_msgcount; 1962 kp->ki_usecount = fp->f_usecount; 1963 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 1964 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 1965 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 1966 kp->ki_fops = PTRTOUINT64(fp->f_ops); 1967 kp->ki_foffset = fp->f_offset; 1968 kp->ki_fdata = PTRTOUINT64(fp->f_data); 1969 1970 /* vnode information to glue this file to something */ 1971 if (fp->f_type == DTYPE_VNODE) { 1972 struct vnode *vp = (struct vnode *)fp->f_data; 1973 1974 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 1975 kp->ki_vsize = vp->v_size; 1976 kp->ki_vtype = vp->v_type; 1977 kp->ki_vtag = vp->v_tag; 1978 kp->ki_vdata = PTRTOUINT64(vp->v_data); 1979 } 1980 1981 /* process information when retrieved via KERN_FILE_BYPID */ 1982 if (p) { 1983 kp->ki_pid = p->p_pid; 1984 kp->ki_fd = i; 1985 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 1986 } 1987 } 1988 1989 static int 1990 sysctl_doeproc(SYSCTLFN_ARGS) 1991 { 1992 struct eproc *eproc; 1993 struct kinfo_proc2 *kproc2; 1994 struct kinfo_proc *dp; 1995 struct proc *p; 1996 const struct proclist_desc *pd; 1997 char *where, *dp2; 1998 int type, op, arg; 1999 u_int elem_size, elem_count; 2000 size_t buflen, needed; 2001 int error; 2002 2003 if (namelen == 1 && name[0] == CTL_QUERY) 2004 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2005 2006 dp = oldp; 2007 dp2 = where = oldp; 2008 buflen = where != NULL ? *oldlenp : 0; 2009 error = 0; 2010 needed = 0; 2011 type = rnode->sysctl_num; 2012 2013 if (type == KERN_PROC) { 2014 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2015 return (EINVAL); 2016 op = name[0]; 2017 if (op != KERN_PROC_ALL) 2018 arg = name[1]; 2019 else 2020 arg = 0; /* Quell compiler warning */ 2021 elem_size = elem_count = 0; /* Ditto */ 2022 } else { 2023 if (namelen != 4) 2024 return (EINVAL); 2025 op = name[0]; 2026 arg = name[1]; 2027 elem_size = name[2]; 2028 elem_count = name[3]; 2029 } 2030 2031 if (type == KERN_PROC) { 2032 eproc = malloc(sizeof(*eproc), M_TEMP, M_WAITOK); 2033 kproc2 = NULL; 2034 } else { 2035 eproc = NULL; 2036 kproc2 = malloc(sizeof(*kproc2), M_TEMP, M_WAITOK); 2037 } 2038 mutex_enter(&proclist_lock); 2039 2040 pd = proclists; 2041 again: 2042 PROCLIST_FOREACH(p, pd->pd_list) { 2043 /* 2044 * Skip embryonic processes. 2045 */ 2046 if (p->p_stat == SIDL) 2047 continue; 2048 2049 if (kauth_authorize_process(l->l_cred, 2050 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2051 continue; 2052 2053 /* 2054 * TODO - make more efficient (see notes below). 2055 * do by session. 2056 */ 2057 switch (op) { 2058 2059 case KERN_PROC_PID: 2060 /* could do this with just a lookup */ 2061 if (p->p_pid != (pid_t)arg) 2062 continue; 2063 break; 2064 2065 case KERN_PROC_PGRP: 2066 /* could do this by traversing pgrp */ 2067 if (p->p_pgrp->pg_id != (pid_t)arg) 2068 continue; 2069 break; 2070 2071 case KERN_PROC_SESSION: 2072 if (p->p_session->s_sid != (pid_t)arg) 2073 continue; 2074 break; 2075 2076 case KERN_PROC_TTY: 2077 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2078 if ((p->p_lflag & PL_CONTROLT) == 0 || 2079 p->p_session->s_ttyp == NULL || 2080 p->p_session->s_ttyvp != NULL) 2081 continue; 2082 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2083 p->p_session->s_ttyp == NULL) { 2084 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2085 continue; 2086 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2087 continue; 2088 break; 2089 2090 case KERN_PROC_UID: 2091 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2092 continue; 2093 break; 2094 2095 case KERN_PROC_RUID: 2096 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2097 continue; 2098 break; 2099 2100 case KERN_PROC_GID: 2101 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2102 continue; 2103 break; 2104 2105 case KERN_PROC_RGID: 2106 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2107 continue; 2108 break; 2109 2110 case KERN_PROC_ALL: 2111 /* allow everything */ 2112 break; 2113 2114 default: 2115 error = EINVAL; 2116 goto cleanup; 2117 } 2118 if (type == KERN_PROC) { 2119 if (buflen >= sizeof(struct kinfo_proc)) { 2120 fill_eproc(p, eproc); 2121 error = dcopyout(l, p, &dp->kp_proc, 2122 sizeof(struct proc)); 2123 if (error) 2124 goto cleanup; 2125 error = dcopyout(l, eproc, &dp->kp_eproc, 2126 sizeof(*eproc)); 2127 if (error) 2128 goto cleanup; 2129 dp++; 2130 buflen -= sizeof(struct kinfo_proc); 2131 } 2132 needed += sizeof(struct kinfo_proc); 2133 } else { /* KERN_PROC2 */ 2134 if (buflen >= elem_size && elem_count > 0) { 2135 fill_kproc2(p, kproc2); 2136 /* 2137 * Copy out elem_size, but not larger than 2138 * the size of a struct kinfo_proc2. 2139 */ 2140 error = dcopyout(l, kproc2, dp2, 2141 min(sizeof(*kproc2), elem_size)); 2142 if (error) 2143 goto cleanup; 2144 dp2 += elem_size; 2145 buflen -= elem_size; 2146 elem_count--; 2147 } 2148 needed += elem_size; 2149 } 2150 } 2151 pd++; 2152 if (pd->pd_list != NULL) 2153 goto again; 2154 mutex_exit(&proclist_lock); 2155 2156 if (where != NULL) { 2157 if (type == KERN_PROC) 2158 *oldlenp = (char *)dp - where; 2159 else 2160 *oldlenp = dp2 - where; 2161 if (needed > *oldlenp) { 2162 error = ENOMEM; 2163 goto out; 2164 } 2165 } else { 2166 needed += KERN_PROCSLOP; 2167 *oldlenp = needed; 2168 } 2169 if (kproc2) 2170 free(kproc2, M_TEMP); 2171 if (eproc) 2172 free(eproc, M_TEMP); 2173 return 0; 2174 cleanup: 2175 mutex_exit(&proclist_lock); 2176 out: 2177 if (kproc2) 2178 free(kproc2, M_TEMP); 2179 if (eproc) 2180 free(eproc, M_TEMP); 2181 return error; 2182 } 2183 2184 /* 2185 * sysctl helper routine for kern.proc_args pseudo-subtree. 2186 */ 2187 static int 2188 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2189 { 2190 struct ps_strings pss; 2191 struct proc *p; 2192 size_t len, i; 2193 struct uio auio; 2194 struct iovec aiov; 2195 pid_t pid; 2196 int nargv, type, error; 2197 char *arg; 2198 char **argv = NULL; 2199 char *tmp; 2200 struct vmspace *vmspace; 2201 vaddr_t psstr_addr; 2202 vaddr_t offsetn; 2203 vaddr_t offsetv; 2204 2205 if (namelen == 1 && name[0] == CTL_QUERY) 2206 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2207 2208 if (newp != NULL || namelen != 2) 2209 return (EINVAL); 2210 pid = name[0]; 2211 type = name[1]; 2212 2213 switch (type) { 2214 case KERN_PROC_ARGV: 2215 case KERN_PROC_NARGV: 2216 case KERN_PROC_ENV: 2217 case KERN_PROC_NENV: 2218 /* ok */ 2219 break; 2220 default: 2221 return (EINVAL); 2222 } 2223 2224 mutex_enter(&proclist_lock); 2225 2226 /* check pid */ 2227 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2228 error = EINVAL; 2229 goto out_locked; 2230 } 2231 2232 error = kauth_authorize_process(l->l_cred, 2233 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2234 if (error) { 2235 goto out_locked; 2236 } 2237 2238 /* only root or same user change look at the environment */ 2239 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2240 if (kauth_authorize_generic(l->l_cred, KAUTH_GENERIC_ISSUSER, 2241 NULL) != 0) { 2242 if (kauth_cred_getuid(l->l_cred) != 2243 kauth_cred_getuid(p->p_cred) || 2244 kauth_cred_getuid(l->l_cred) != 2245 kauth_cred_getsvuid(p->p_cred)) { 2246 error = EPERM; 2247 goto out_locked; 2248 } 2249 } 2250 } 2251 2252 if (oldp == NULL) { 2253 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2254 *oldlenp = sizeof (int); 2255 else 2256 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2257 error = 0; 2258 goto out_locked; 2259 } 2260 2261 /* 2262 * Zombies don't have a stack, so we can't read their psstrings. 2263 * System processes also don't have a user stack. 2264 */ 2265 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2266 error = EINVAL; 2267 goto out_locked; 2268 } 2269 2270 /* 2271 * Lock the process down in memory. 2272 */ 2273 /* XXXCDC: how should locking work here? */ 2274 if ((l->l_flag & LW_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2275 error = EFAULT; 2276 goto out_locked; 2277 } 2278 2279 psstr_addr = (vaddr_t)p->p_psstr; 2280 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2281 offsetn = p->p_psnargv; 2282 offsetv = p->p_psargv; 2283 } else { 2284 offsetn = p->p_psnenv; 2285 offsetv = p->p_psenv; 2286 } 2287 vmspace = p->p_vmspace; 2288 vmspace->vm_refcnt++; /* XXX */ 2289 2290 mutex_exit(&proclist_lock); 2291 2292 /* 2293 * Allocate a temporary buffer to hold the arguments. 2294 */ 2295 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2296 2297 /* 2298 * Read in the ps_strings structure. 2299 */ 2300 aiov.iov_base = &pss; 2301 aiov.iov_len = sizeof(pss); 2302 auio.uio_iov = &aiov; 2303 auio.uio_iovcnt = 1; 2304 auio.uio_offset = psstr_addr; 2305 auio.uio_resid = sizeof(pss); 2306 auio.uio_rw = UIO_READ; 2307 UIO_SETUP_SYSSPACE(&auio); 2308 error = uvm_io(&vmspace->vm_map, &auio); 2309 if (error) 2310 goto done; 2311 2312 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2313 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2314 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2315 *oldlenp = sizeof(nargv); 2316 goto done; 2317 } 2318 /* 2319 * Now read the address of the argument vector. 2320 */ 2321 switch (type) { 2322 case KERN_PROC_ARGV: 2323 /* FALLTHROUGH */ 2324 case KERN_PROC_ENV: 2325 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2326 break; 2327 default: 2328 return (EINVAL); 2329 } 2330 2331 #ifdef COMPAT_NETBSD32 2332 if (p->p_flag & PK_32) 2333 len = sizeof(netbsd32_charp) * nargv; 2334 else 2335 #endif 2336 len = sizeof(char *) * nargv; 2337 2338 argv = malloc(len, M_TEMP, M_WAITOK); 2339 2340 aiov.iov_base = argv; 2341 aiov.iov_len = len; 2342 auio.uio_iov = &aiov; 2343 auio.uio_iovcnt = 1; 2344 auio.uio_offset = (off_t)(unsigned long)tmp; 2345 auio.uio_resid = len; 2346 auio.uio_rw = UIO_READ; 2347 UIO_SETUP_SYSSPACE(&auio); 2348 error = uvm_io(&vmspace->vm_map, &auio); 2349 if (error) 2350 goto done; 2351 2352 /* 2353 * Now copy each string. 2354 */ 2355 len = 0; /* bytes written to user buffer */ 2356 for (i = 0; i < nargv; i++) { 2357 int finished = 0; 2358 vaddr_t base; 2359 size_t xlen; 2360 int j; 2361 2362 #ifdef COMPAT_NETBSD32 2363 if (p->p_flag & PK_32) { 2364 netbsd32_charp *argv32; 2365 2366 argv32 = (netbsd32_charp *)argv; 2367 2368 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2369 } else 2370 #endif 2371 base = (vaddr_t)argv[i]; 2372 2373 while (!finished) { 2374 xlen = PAGE_SIZE - (base & PAGE_MASK); 2375 2376 aiov.iov_base = arg; 2377 aiov.iov_len = PAGE_SIZE; 2378 auio.uio_iov = &aiov; 2379 auio.uio_iovcnt = 1; 2380 auio.uio_offset = base; 2381 auio.uio_resid = xlen; 2382 auio.uio_rw = UIO_READ; 2383 UIO_SETUP_SYSSPACE(&auio); 2384 error = uvm_io(&vmspace->vm_map, &auio); 2385 if (error) 2386 goto done; 2387 2388 /* Look for the end of the string */ 2389 for (j = 0; j < xlen; j++) { 2390 if (arg[j] == '\0') { 2391 xlen = j + 1; 2392 finished = 1; 2393 break; 2394 } 2395 } 2396 2397 /* Check for user buffer overflow */ 2398 if (len + xlen > *oldlenp) { 2399 finished = 1; 2400 if (len > *oldlenp) 2401 xlen = 0; 2402 else 2403 xlen = *oldlenp - len; 2404 } 2405 2406 /* Copyout the page */ 2407 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2408 if (error) 2409 goto done; 2410 2411 len += xlen; 2412 base += xlen; 2413 } 2414 } 2415 *oldlenp = len; 2416 2417 done: 2418 if (argv != NULL) 2419 free(argv, M_TEMP); 2420 2421 uvmspace_free(vmspace); 2422 2423 free(arg, M_TEMP); 2424 return error; 2425 2426 out_locked: 2427 mutex_exit(&proclist_lock); 2428 return error; 2429 } 2430 2431 static int 2432 sysctl_security_setidcore(SYSCTLFN_ARGS) 2433 { 2434 int newsize, error; 2435 struct sysctlnode node; 2436 2437 node = *rnode; 2438 node.sysctl_data = &newsize; 2439 newsize = *(int *)rnode->sysctl_data; 2440 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2441 if (error || newp == NULL) 2442 return error; 2443 2444 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2445 0, NULL, NULL, NULL)) 2446 return (EPERM); 2447 2448 *(int *)rnode->sysctl_data = newsize; 2449 2450 return 0; 2451 } 2452 2453 static int 2454 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2455 { 2456 int error; 2457 char *newsetidcorename; 2458 struct sysctlnode node; 2459 2460 newsetidcorename = PNBUF_GET(); 2461 node = *rnode; 2462 node.sysctl_data = newsetidcorename; 2463 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2464 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2465 if (error || newp == NULL) { 2466 goto out; 2467 } 2468 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2469 0, NULL, NULL, NULL)) { 2470 error = EPERM; 2471 goto out; 2472 } 2473 if (strlen(newsetidcorename) == 0) { 2474 error = EINVAL; 2475 goto out; 2476 } 2477 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2478 out: 2479 PNBUF_PUT(newsetidcorename); 2480 return error; 2481 } 2482 2483 /* 2484 * sysctl helper routine for kern.cp_id node. maps cpus to their 2485 * cpuids. 2486 */ 2487 static int 2488 sysctl_kern_cpid(SYSCTLFN_ARGS) 2489 { 2490 struct sysctlnode node = *rnode; 2491 2492 #ifndef MULTIPROCESSOR 2493 uint64_t id; 2494 2495 if (namelen == 1) { 2496 if (name[0] != 0) 2497 return (ENOENT); 2498 /* 2499 * you're allowed to ask for the zero'th processor 2500 */ 2501 name++; 2502 namelen--; 2503 } 2504 node.sysctl_data = &id; 2505 node.sysctl_size = sizeof(id); 2506 id = cpu_number(); 2507 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2508 2509 #else /* MULTIPROCESSOR */ 2510 uint64_t *cp_id = NULL; 2511 int error, n = ncpu; 2512 struct cpu_info *ci; 2513 CPU_INFO_ITERATOR cii; 2514 2515 /* 2516 * here you may either retrieve a single cpu id or the whole 2517 * set. the size you get back when probing depends on what 2518 * you ask for. 2519 */ 2520 switch (namelen) { 2521 case 0: 2522 node.sysctl_size = n * sizeof(uint64_t); 2523 n = -2; /* ALL */ 2524 break; 2525 case 1: 2526 if (name[0] < 0 || name[0] >= n) 2527 return (ENOENT); /* ENOSUCHPROCESSOR */ 2528 node.sysctl_size = sizeof(uint64_t); 2529 n = name[0]; 2530 /* 2531 * adjust these so that sysctl_lookup() will be happy 2532 */ 2533 name++; 2534 namelen--; 2535 break; 2536 default: 2537 return (EINVAL); 2538 } 2539 2540 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2541 if (cp_id == NULL) 2542 return (ENOMEM); 2543 node.sysctl_data = cp_id; 2544 memset(cp_id, 0, node.sysctl_size); 2545 2546 for (CPU_INFO_FOREACH(cii, ci)) { 2547 if (n <= 0) 2548 cp_id[0] = ci->ci_cpuid; 2549 /* 2550 * if a specific processor was requested and we just 2551 * did it, we're done here 2552 */ 2553 if (n == 0) 2554 break; 2555 /* 2556 * if doing "all", skip to next cp_id slot for next processor 2557 */ 2558 if (n == -2) 2559 cp_id++; 2560 /* 2561 * if we're doing a specific processor, we're one 2562 * processor closer 2563 */ 2564 if (n > 0) 2565 n--; 2566 } 2567 2568 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2569 free(node.sysctl_data, M_TEMP); 2570 return (error); 2571 2572 #endif /* MULTIPROCESSOR */ 2573 } 2574 2575 /* 2576 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2577 * calculate on the fly taking into account integer overflow and the 2578 * current wired count. 2579 */ 2580 static int 2581 sysctl_hw_usermem(SYSCTLFN_ARGS) 2582 { 2583 u_int ui; 2584 u_quad_t uq; 2585 struct sysctlnode node; 2586 2587 node = *rnode; 2588 switch (rnode->sysctl_num) { 2589 case HW_USERMEM: 2590 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2591 ui = UINT_MAX; 2592 else 2593 ui *= PAGE_SIZE; 2594 node.sysctl_data = &ui; 2595 break; 2596 case HW_USERMEM64: 2597 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2598 node.sysctl_data = &uq; 2599 break; 2600 default: 2601 return (EINVAL); 2602 } 2603 2604 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2605 } 2606 2607 /* 2608 * sysctl helper routine for kern.cnmagic node. pulls the old value 2609 * out, encoded, and stuffs the new value in for decoding. 2610 */ 2611 static int 2612 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2613 { 2614 char magic[CNS_LEN]; 2615 int error; 2616 struct sysctlnode node; 2617 2618 if (oldp) 2619 cn_get_magic(magic, CNS_LEN); 2620 node = *rnode; 2621 node.sysctl_data = &magic[0]; 2622 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2623 if (error || newp == NULL) 2624 return (error); 2625 2626 return (cn_set_magic(magic)); 2627 } 2628 2629 static int 2630 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2631 { 2632 struct sysctlnode node; 2633 2634 node = *rnode; 2635 node.sysctl_data = &ncpu; 2636 2637 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2638 } 2639 2640 2641 /* 2642 * ******************************************************************** 2643 * section 3: public helper routines that are used for more than one 2644 * node 2645 * ******************************************************************** 2646 */ 2647 2648 /* 2649 * sysctl helper routine for the kern.root_device node and some ports' 2650 * machdep.root_device nodes. 2651 */ 2652 int 2653 sysctl_root_device(SYSCTLFN_ARGS) 2654 { 2655 struct sysctlnode node; 2656 2657 node = *rnode; 2658 node.sysctl_data = root_device->dv_xname; 2659 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2660 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2661 } 2662 2663 /* 2664 * sysctl helper routine for kern.consdev, dependent on the current 2665 * state of the console. also used for machdep.console_device on some 2666 * ports. 2667 */ 2668 int 2669 sysctl_consdev(SYSCTLFN_ARGS) 2670 { 2671 dev_t consdev; 2672 struct sysctlnode node; 2673 2674 if (cn_tab != NULL) 2675 consdev = cn_tab->cn_dev; 2676 else 2677 consdev = NODEV; 2678 node = *rnode; 2679 node.sysctl_data = &consdev; 2680 node.sysctl_size = sizeof(consdev); 2681 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2682 } 2683 2684 /* 2685 * ******************************************************************** 2686 * section 4: support for some helpers 2687 * ******************************************************************** 2688 */ 2689 2690 /* 2691 * Fill in a kinfo_proc2 structure for the specified process. 2692 */ 2693 static void 2694 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2695 { 2696 struct tty *tp; 2697 struct lwp *l, *l2; 2698 struct timeval ut, st, rt; 2699 sigset_t ss1, ss2; 2700 2701 memset(ki, 0, sizeof(*ki)); 2702 2703 ki->p_paddr = PTRTOUINT64(p); 2704 ki->p_fd = PTRTOUINT64(p->p_fd); 2705 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2706 ki->p_stats = PTRTOUINT64(p->p_stats); 2707 ki->p_limit = PTRTOUINT64(p->p_limit); 2708 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2709 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2710 ki->p_sess = PTRTOUINT64(p->p_session); 2711 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2712 ki->p_ru = PTRTOUINT64(&p->p_stats->p_ru); 2713 2714 ki->p_eflag = 0; 2715 ki->p_exitsig = p->p_exitsig; 2716 2717 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2718 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2719 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2720 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2721 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2722 2723 ki->p_pid = p->p_pid; 2724 if (p->p_pptr) 2725 ki->p_ppid = p->p_pptr->p_pid; 2726 else 2727 ki->p_ppid = 0; 2728 ki->p_sid = p->p_session->s_sid; 2729 ki->p__pgid = p->p_pgrp->pg_id; 2730 2731 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2732 2733 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2734 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2735 ki->p_gid = kauth_cred_getegid(p->p_cred); 2736 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2737 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2738 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2739 2740 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2741 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2742 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0])), 2743 UIO_SYSSPACE); 2744 2745 ki->p_jobc = p->p_pgrp->pg_jobc; 2746 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2747 ki->p_tdev = tp->t_dev; 2748 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2749 ki->p_tsess = PTRTOUINT64(tp->t_session); 2750 } else { 2751 ki->p_tdev = NODEV; 2752 } 2753 2754 ki->p_estcpu = p->p_estcpu; 2755 2756 mutex_enter(&p->p_smutex); 2757 2758 ki->p_uticks = p->p_uticks; 2759 ki->p_sticks = p->p_sticks; 2760 ki->p_iticks = p->p_iticks; 2761 2762 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2763 ki->p_traceflag = p->p_traceflag; 2764 2765 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2766 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2767 2768 ki->p_cpticks = 0; 2769 ki->p_pctcpu = p->p_pctcpu; 2770 ss1 = p->p_sigpend.sp_set; 2771 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2772 /* This is hardly correct, but... */ 2773 sigplusset(&l->l_sigpend.sp_set, &ss1); 2774 sigplusset(&l->l_sigmask, &ss2); 2775 ki->p_cpticks += l->l_cpticks; 2776 ki->p_pctcpu += l->l_pctcpu; 2777 } 2778 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2779 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2780 2781 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2782 ki->p_realstat = p->p_stat; 2783 ki->p_nice = p->p_nice; 2784 2785 ki->p_xstat = p->p_xstat; 2786 ki->p_acflag = p->p_acflag; 2787 2788 strncpy(ki->p_comm, p->p_comm, 2789 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2790 2791 strncpy(ki->p_login, p->p_session->s_login, 2792 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2793 2794 ki->p_nlwps = p->p_nlwps; 2795 ki->p_realflag = ki->p_flag; 2796 2797 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2798 ki->p_vm_rssize = 0; 2799 ki->p_vm_tsize = 0; 2800 ki->p_vm_dsize = 0; 2801 ki->p_vm_ssize = 0; 2802 ki->p_nrlwps = 0; 2803 l = NULL; 2804 } else { 2805 struct vmspace *vm = p->p_vmspace; 2806 int tmp; 2807 2808 ki->p_vm_rssize = vm_resident_count(vm); 2809 ki->p_vm_tsize = vm->vm_tsize; 2810 ki->p_vm_dsize = vm->vm_dsize; 2811 ki->p_vm_ssize = vm->vm_ssize; 2812 2813 /* Pick a "representative" LWP */ 2814 l = proc_representative_lwp(p, &tmp, 1); 2815 lwp_lock(l); 2816 ki->p_nrlwps = tmp; 2817 ki->p_forw = 0; 2818 ki->p_back = 0; 2819 ki->p_addr = PTRTOUINT64(l->l_addr); 2820 ki->p_stat = l->l_stat; 2821 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2822 ki->p_swtime = l->l_swtime; 2823 ki->p_slptime = l->l_slptime; 2824 if (l->l_stat == LSONPROC) 2825 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2826 else 2827 ki->p_schedflags = 0; 2828 ki->p_holdcnt = l->l_holdcnt; 2829 ki->p_priority = l->l_priority; 2830 ki->p_usrpri = l->l_usrpri; 2831 if (l->l_wmesg) 2832 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2833 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2834 lwp_unlock(l); 2835 } 2836 if (p->p_session->s_ttyvp) 2837 ki->p_eflag |= EPROC_CTTY; 2838 if (SESS_LEADER(p)) 2839 ki->p_eflag |= EPROC_SLEADER; 2840 2841 /* XXX Is this double check necessary? */ 2842 if (P_ZOMBIE(p)) { 2843 ki->p_uvalid = 0; 2844 ki->p_rtime_sec = 0; 2845 ki->p_rtime_usec = 0; 2846 } else { 2847 ki->p_uvalid = 1; 2848 2849 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2850 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2851 2852 calcru(p, &ut, &st, NULL, &rt); 2853 ki->p_rtime_sec = rt.tv_sec; 2854 ki->p_rtime_usec = rt.tv_usec; 2855 ki->p_uutime_sec = ut.tv_sec; 2856 ki->p_uutime_usec = ut.tv_usec; 2857 ki->p_ustime_sec = st.tv_sec; 2858 ki->p_ustime_usec = st.tv_usec; 2859 2860 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2861 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2862 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2863 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2864 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2865 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2866 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2867 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2868 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2869 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2870 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2871 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2872 2873 ki->p_uru_nvcsw = 0; 2874 ki->p_uru_nivcsw = 0; 2875 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 2876 ki->p_uru_nvcsw += (l->l_ncsw - l->l_nivcsw); 2877 ki->p_uru_nivcsw += l->l_nivcsw; 2878 } 2879 2880 timeradd(&p->p_stats->p_cru.ru_utime, 2881 &p->p_stats->p_cru.ru_stime, &ut); 2882 ki->p_uctime_sec = ut.tv_sec; 2883 ki->p_uctime_usec = ut.tv_usec; 2884 } 2885 #ifdef MULTIPROCESSOR 2886 if (l != NULL) 2887 ki->p_cpuid = l->l_cpu->ci_cpuid; 2888 else 2889 #endif 2890 ki->p_cpuid = KI_NOCPU; 2891 2892 mutex_exit(&p->p_smutex); 2893 } 2894 2895 /* 2896 * Fill in a kinfo_lwp structure for the specified lwp. 2897 */ 2898 static void 2899 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2900 { 2901 struct proc *p = l->l_proc; 2902 2903 kl->l_forw = 0; 2904 kl->l_back = 0; 2905 kl->l_laddr = PTRTOUINT64(l); 2906 kl->l_addr = PTRTOUINT64(l->l_addr); 2907 kl->l_stat = l->l_stat; 2908 kl->l_lid = l->l_lid; 2909 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 2910 2911 kl->l_swtime = l->l_swtime; 2912 kl->l_slptime = l->l_slptime; 2913 if (l->l_stat == LSONPROC) 2914 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2915 else 2916 kl->l_schedflags = 0; 2917 kl->l_holdcnt = l->l_holdcnt; 2918 kl->l_priority = l->l_priority; 2919 kl->l_usrpri = l->l_usrpri; 2920 if (l->l_wmesg) 2921 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2922 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2923 #ifdef MULTIPROCESSOR 2924 kl->l_cpuid = l->l_cpu->ci_cpuid; 2925 #else 2926 kl->l_cpuid = KI_NOCPU; 2927 #endif 2928 kl->l_rtime_sec = l->l_rtime.tv_sec; 2929 kl->l_rtime_usec = l->l_rtime.tv_usec; 2930 kl->l_cpticks = l->l_cpticks; 2931 kl->l_pctcpu = l->l_pctcpu; 2932 kl->l_pid = p->p_pid; 2933 if (l->l_name == NULL) 2934 kl->l_name[0] = '\0'; 2935 else 2936 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 2937 } 2938 2939 /* 2940 * Fill in an eproc structure for the specified process. 2941 */ 2942 void 2943 fill_eproc(struct proc *p, struct eproc *ep) 2944 { 2945 struct tty *tp; 2946 struct lwp *l; 2947 2948 ep->e_paddr = p; 2949 ep->e_sess = p->p_session; 2950 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 2951 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 2952 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2953 ep->e_vm.vm_rssize = 0; 2954 ep->e_vm.vm_tsize = 0; 2955 ep->e_vm.vm_dsize = 0; 2956 ep->e_vm.vm_ssize = 0; 2957 /* ep->e_vm.vm_pmap = XXX; */ 2958 } else { 2959 struct vmspace *vm = p->p_vmspace; 2960 2961 ep->e_vm.vm_rssize = vm_resident_count(vm); 2962 ep->e_vm.vm_tsize = vm->vm_tsize; 2963 ep->e_vm.vm_dsize = vm->vm_dsize; 2964 ep->e_vm.vm_ssize = vm->vm_ssize; 2965 2966 /* Pick a "representative" LWP */ 2967 mutex_enter(&p->p_smutex); 2968 l = proc_representative_lwp(p, NULL, 1); 2969 lwp_lock(l); 2970 if (l->l_wmesg) 2971 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2972 lwp_unlock(l); 2973 mutex_exit(&p->p_smutex); 2974 } 2975 if (p->p_pptr) 2976 ep->e_ppid = p->p_pptr->p_pid; 2977 else 2978 ep->e_ppid = 0; 2979 ep->e_pgid = p->p_pgrp->pg_id; 2980 ep->e_sid = ep->e_sess->s_sid; 2981 ep->e_jobc = p->p_pgrp->pg_jobc; 2982 if ((p->p_lflag & PL_CONTROLT) && 2983 (tp = ep->e_sess->s_ttyp)) { 2984 ep->e_tdev = tp->t_dev; 2985 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2986 ep->e_tsess = tp->t_session; 2987 } else 2988 ep->e_tdev = NODEV; 2989 2990 ep->e_xsize = ep->e_xrssize = 0; 2991 ep->e_xccount = ep->e_xswrss = 0; 2992 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2993 if (SESS_LEADER(p)) 2994 ep->e_flag |= EPROC_SLEADER; 2995 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2996 } 2997 2998 u_int 2999 sysctl_map_flags(const u_int *map, u_int word) 3000 { 3001 u_int rv; 3002 3003 for (rv = 0; *map != 0; map += 2) 3004 if ((word & map[0]) != 0) 3005 rv |= map[1]; 3006 3007 return rv; 3008 } 3009
Indexes created Wed Oct 01 15:09:59 GMT 2025