init_sysctl.c revision 1.96.2.3
1 /* $NetBSD: init_sysctl.c,v 1.96.2.3 2007/03/12 05:58:32 rmind 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 1.96.2.3 2007/03/12 05:58:32 rmind 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 int dumponpanic; /* defined in kern/subr_prf.c */ 332 const struct sysctlnode *rnode; 333 334 sysctl_createv(clog, 0, NULL, NULL, 335 CTLFLAG_PERMANENT, 336 CTLTYPE_NODE, "kern", NULL, 337 NULL, 0, NULL, 0, 338 CTL_KERN, CTL_EOL); 339 340 sysctl_createv(clog, 0, NULL, NULL, 341 CTLFLAG_PERMANENT, 342 CTLTYPE_STRING, "ostype", 343 SYSCTL_DESCR("Operating system type"), 344 NULL, 0, &ostype, 0, 345 CTL_KERN, KERN_OSTYPE, CTL_EOL); 346 sysctl_createv(clog, 0, NULL, NULL, 347 CTLFLAG_PERMANENT, 348 CTLTYPE_STRING, "osrelease", 349 SYSCTL_DESCR("Operating system release"), 350 NULL, 0, &osrelease, 0, 351 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 352 sysctl_createv(clog, 0, NULL, NULL, 353 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 354 CTLTYPE_INT, "osrevision", 355 SYSCTL_DESCR("Operating system revision"), 356 NULL, __NetBSD_Version__, NULL, 0, 357 CTL_KERN, KERN_OSREV, CTL_EOL); 358 sysctl_createv(clog, 0, NULL, NULL, 359 CTLFLAG_PERMANENT, 360 CTLTYPE_STRING, "version", 361 SYSCTL_DESCR("Kernel version"), 362 NULL, 0, &version, 0, 363 CTL_KERN, KERN_VERSION, CTL_EOL); 364 sysctl_createv(clog, 0, NULL, NULL, 365 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 366 CTLTYPE_INT, "maxvnodes", 367 SYSCTL_DESCR("Maximum number of vnodes"), 368 sysctl_kern_maxvnodes, 0, NULL, 0, 369 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 370 sysctl_createv(clog, 0, NULL, NULL, 371 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 372 CTLTYPE_INT, "maxproc", 373 SYSCTL_DESCR("Maximum number of simultaneous processes"), 374 sysctl_kern_maxproc, 0, NULL, 0, 375 CTL_KERN, KERN_MAXPROC, CTL_EOL); 376 sysctl_createv(clog, 0, NULL, NULL, 377 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 378 CTLTYPE_INT, "maxfiles", 379 SYSCTL_DESCR("Maximum number of open files"), 380 NULL, 0, &maxfiles, 0, 381 CTL_KERN, KERN_MAXFILES, CTL_EOL); 382 sysctl_createv(clog, 0, NULL, NULL, 383 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 384 CTLTYPE_INT, "argmax", 385 SYSCTL_DESCR("Maximum number of bytes of arguments to " 386 "execve(2)"), 387 NULL, ARG_MAX, NULL, 0, 388 CTL_KERN, KERN_ARGMAX, CTL_EOL); 389 sysctl_createv(clog, 0, NULL, NULL, 390 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 391 CTLTYPE_STRING, "hostname", 392 SYSCTL_DESCR("System hostname"), 393 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 394 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 395 sysctl_createv(clog, 0, NULL, NULL, 396 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 397 CTLTYPE_INT, "hostid", 398 SYSCTL_DESCR("System host ID number"), 399 sysctl_kern_hostid, 0, NULL, 0, 400 CTL_KERN, KERN_HOSTID, CTL_EOL); 401 sysctl_createv(clog, 0, NULL, NULL, 402 CTLFLAG_PERMANENT, 403 CTLTYPE_STRUCT, "clockrate", 404 SYSCTL_DESCR("Kernel clock rates"), 405 sysctl_kern_clockrate, 0, NULL, 406 sizeof(struct clockinfo), 407 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 408 sysctl_createv(clog, 0, NULL, NULL, 409 CTLFLAG_PERMANENT, 410 CTLTYPE_INT, "hardclock_ticks", 411 SYSCTL_DESCR("Number of hardclock ticks"), 412 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 413 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 414 sysctl_createv(clog, 0, NULL, NULL, 415 CTLFLAG_PERMANENT, 416 CTLTYPE_STRUCT, "vnode", 417 SYSCTL_DESCR("System vnode table"), 418 sysctl_kern_vnode, 0, NULL, 0, 419 CTL_KERN, KERN_VNODE, CTL_EOL); 420 sysctl_createv(clog, 0, NULL, NULL, 421 CTLFLAG_PERMANENT, 422 CTLTYPE_STRUCT, "file", 423 SYSCTL_DESCR("System open file table"), 424 sysctl_kern_file, 0, NULL, 0, 425 CTL_KERN, KERN_FILE, CTL_EOL); 426 #ifndef GPROF 427 sysctl_createv(clog, 0, NULL, NULL, 428 CTLFLAG_PERMANENT, 429 CTLTYPE_NODE, "profiling", 430 SYSCTL_DESCR("Profiling information (not available)"), 431 sysctl_notavail, 0, NULL, 0, 432 CTL_KERN, KERN_PROF, CTL_EOL); 433 #endif 434 sysctl_createv(clog, 0, NULL, NULL, 435 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 436 CTLTYPE_INT, "posix1version", 437 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 438 "with which the operating system attempts " 439 "to comply"), 440 NULL, _POSIX_VERSION, NULL, 0, 441 CTL_KERN, KERN_POSIX1, CTL_EOL); 442 sysctl_createv(clog, 0, NULL, NULL, 443 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 444 CTLTYPE_INT, "ngroups", 445 SYSCTL_DESCR("Maximum number of supplemental groups"), 446 NULL, NGROUPS_MAX, NULL, 0, 447 CTL_KERN, KERN_NGROUPS, CTL_EOL); 448 sysctl_createv(clog, 0, NULL, NULL, 449 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 450 CTLTYPE_INT, "job_control", 451 SYSCTL_DESCR("Whether job control is available"), 452 NULL, 1, NULL, 0, 453 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 454 sysctl_createv(clog, 0, NULL, NULL, 455 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 456 CTLTYPE_INT, "saved_ids", 457 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 458 "available"), NULL, 459 #ifdef _POSIX_SAVED_IDS 460 1, 461 #else /* _POSIX_SAVED_IDS */ 462 0, 463 #endif /* _POSIX_SAVED_IDS */ 464 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 465 sysctl_createv(clog, 0, NULL, NULL, 466 CTLFLAG_PERMANENT, 467 CTLTYPE_STRUCT, "boottime", 468 SYSCTL_DESCR("System boot time"), 469 NULL, 0, &boottime, sizeof(boottime), 470 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 471 sysctl_createv(clog, 0, NULL, NULL, 472 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 473 CTLTYPE_STRING, "domainname", 474 SYSCTL_DESCR("YP domain name"), 475 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 476 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 477 sysctl_createv(clog, 0, NULL, NULL, 478 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 479 CTLTYPE_INT, "maxpartitions", 480 SYSCTL_DESCR("Maximum number of partitions allowed per " 481 "disk"), 482 NULL, MAXPARTITIONS, NULL, 0, 483 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 484 sysctl_createv(clog, 0, NULL, NULL, 485 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 486 CTLTYPE_INT, "rawpartition", 487 SYSCTL_DESCR("Raw partition of a disk"), 488 NULL, RAW_PART, NULL, 0, 489 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 490 sysctl_createv(clog, 0, NULL, NULL, 491 CTLFLAG_PERMANENT, 492 CTLTYPE_STRUCT, "timex", NULL, 493 sysctl_notavail, 0, NULL, 0, 494 CTL_KERN, KERN_TIMEX, CTL_EOL); 495 sysctl_createv(clog, 0, NULL, NULL, 496 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 497 CTLTYPE_INT, "autonicetime", 498 SYSCTL_DESCR("CPU clock seconds before non-root " 499 "process priority is lowered"), 500 sysctl_kern_autonice, 0, &autonicetime, 0, 501 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 502 sysctl_createv(clog, 0, NULL, NULL, 503 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 504 CTLTYPE_INT, "autoniceval", 505 SYSCTL_DESCR("Automatic reniced non-root process " 506 "priority"), 507 sysctl_kern_autonice, 0, &autoniceval, 0, 508 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 509 sysctl_createv(clog, 0, NULL, NULL, 510 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 511 CTLTYPE_INT, "rtc_offset", 512 SYSCTL_DESCR("Offset of real time clock from UTC in " 513 "minutes"), 514 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 515 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 516 sysctl_createv(clog, 0, NULL, NULL, 517 CTLFLAG_PERMANENT, 518 CTLTYPE_STRING, "root_device", 519 SYSCTL_DESCR("Name of the root device"), 520 sysctl_root_device, 0, NULL, 0, 521 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 522 sysctl_createv(clog, 0, NULL, NULL, 523 CTLFLAG_PERMANENT, 524 CTLTYPE_INT, "msgbufsize", 525 SYSCTL_DESCR("Size of the kernel message buffer"), 526 sysctl_msgbuf, 0, NULL, 0, 527 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 528 sysctl_createv(clog, 0, NULL, NULL, 529 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 530 CTLTYPE_INT, "fsync", 531 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 532 "Synchronization Option is available on " 533 "this system"), 534 NULL, 1, NULL, 0, 535 CTL_KERN, KERN_FSYNC, CTL_EOL); 536 sysctl_createv(clog, 0, NULL, NULL, 537 CTLFLAG_PERMANENT, 538 CTLTYPE_NODE, "ipc", 539 SYSCTL_DESCR("SysV IPC options"), 540 NULL, 0, NULL, 0, 541 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 542 sysctl_createv(clog, 0, NULL, NULL, 543 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 544 CTLTYPE_INT, "sysvmsg", 545 SYSCTL_DESCR("System V style message support available"), 546 NULL, 547 #ifdef SYSVMSG 548 1, 549 #else /* SYSVMSG */ 550 0, 551 #endif /* SYSVMSG */ 552 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 553 sysctl_createv(clog, 0, NULL, NULL, 554 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 555 CTLTYPE_INT, "sysvsem", 556 SYSCTL_DESCR("System V style semaphore support " 557 "available"), NULL, 558 #ifdef SYSVSEM 559 1, 560 #else /* SYSVSEM */ 561 0, 562 #endif /* SYSVSEM */ 563 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 564 sysctl_createv(clog, 0, NULL, NULL, 565 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 566 CTLTYPE_INT, "sysvshm", 567 SYSCTL_DESCR("System V style shared memory support " 568 "available"), NULL, 569 #ifdef SYSVSHM 570 1, 571 #else /* SYSVSHM */ 572 0, 573 #endif /* SYSVSHM */ 574 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 575 sysctl_createv(clog, 0, NULL, NULL, 576 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 577 CTLTYPE_INT, "synchronized_io", 578 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 579 "I/O Option is available on this system"), 580 NULL, 1, NULL, 0, 581 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 582 sysctl_createv(clog, 0, NULL, NULL, 583 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 584 CTLTYPE_INT, "iov_max", 585 SYSCTL_DESCR("Maximum number of iovec structures per " 586 "process"), 587 NULL, IOV_MAX, NULL, 0, 588 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 589 sysctl_createv(clog, 0, NULL, NULL, 590 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 591 CTLTYPE_INT, "mapped_files", 592 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 593 "Files Option is available on this system"), 594 NULL, 1, NULL, 0, 595 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 596 sysctl_createv(clog, 0, NULL, NULL, 597 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 598 CTLTYPE_INT, "memlock", 599 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 600 "Locking Option is available on this " 601 "system"), 602 NULL, 1, NULL, 0, 603 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 604 sysctl_createv(clog, 0, NULL, NULL, 605 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 606 CTLTYPE_INT, "memlock_range", 607 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 608 "Locking Option is available on this " 609 "system"), 610 NULL, 1, NULL, 0, 611 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 612 sysctl_createv(clog, 0, NULL, NULL, 613 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 614 CTLTYPE_INT, "memory_protection", 615 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 616 "Protection Option is available on this " 617 "system"), 618 NULL, 1, NULL, 0, 619 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 620 sysctl_createv(clog, 0, NULL, NULL, 621 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 622 CTLTYPE_INT, "login_name_max", 623 SYSCTL_DESCR("Maximum login name length"), 624 NULL, LOGIN_NAME_MAX, NULL, 0, 625 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 626 sysctl_createv(clog, 0, NULL, NULL, 627 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 628 CTLTYPE_STRING, "defcorename", 629 SYSCTL_DESCR("Default core file name"), 630 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 631 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 632 sysctl_createv(clog, 0, NULL, NULL, 633 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 634 CTLTYPE_INT, "logsigexit", 635 SYSCTL_DESCR("Log process exit when caused by signals"), 636 NULL, 0, &kern_logsigexit, 0, 637 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 638 sysctl_createv(clog, 0, NULL, NULL, 639 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 640 CTLTYPE_INT, "fscale", 641 SYSCTL_DESCR("Kernel fixed-point scale factor"), 642 NULL, FSCALE, NULL, 0, 643 CTL_KERN, KERN_FSCALE, CTL_EOL); 644 sysctl_createv(clog, 0, NULL, NULL, 645 CTLFLAG_PERMANENT, 646 CTLTYPE_STRUCT, "cp_time", 647 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 648 sysctl_kern_cptime, 0, NULL, 0, 649 CTL_KERN, KERN_CP_TIME, CTL_EOL); 650 sysctl_createv(clog, 0, NULL, NULL, 651 CTLFLAG_PERMANENT, 652 CTLTYPE_INT, "msgbuf", 653 SYSCTL_DESCR("Kernel message buffer"), 654 sysctl_msgbuf, 0, NULL, 0, 655 CTL_KERN, KERN_MSGBUF, CTL_EOL); 656 sysctl_createv(clog, 0, NULL, NULL, 657 CTLFLAG_PERMANENT, 658 CTLTYPE_STRUCT, "consdev", 659 SYSCTL_DESCR("Console device"), 660 sysctl_consdev, 0, NULL, sizeof(dev_t), 661 CTL_KERN, KERN_CONSDEV, CTL_EOL); 662 #if NPTY > 0 663 sysctl_createv(clog, 0, NULL, NULL, 664 CTLFLAG_PERMANENT, 665 CTLTYPE_INT, "maxptys", 666 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 667 sysctl_kern_maxptys, 0, NULL, 0, 668 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 669 #endif /* NPTY > 0 */ 670 sysctl_createv(clog, 0, NULL, NULL, 671 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 672 CTLTYPE_INT, "maxphys", 673 SYSCTL_DESCR("Maximum raw I/O transfer size"), 674 NULL, MAXPHYS, NULL, 0, 675 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 676 sysctl_createv(clog, 0, NULL, NULL, 677 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 678 CTLTYPE_INT, "sbmax", 679 SYSCTL_DESCR("Maximum socket buffer size"), 680 sysctl_kern_sbmax, 0, NULL, 0, 681 CTL_KERN, KERN_SBMAX, CTL_EOL); 682 sysctl_createv(clog, 0, NULL, NULL, 683 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 684 CTLTYPE_INT, "monotonic_clock", 685 SYSCTL_DESCR("Implementation version of the POSIX " 686 "1003.1b Monotonic Clock Option"), 687 /* XXX _POSIX_VERSION */ 688 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 689 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 690 sysctl_createv(clog, 0, NULL, NULL, 691 CTLFLAG_PERMANENT, 692 CTLTYPE_INT, "urandom", 693 SYSCTL_DESCR("Random integer value"), 694 sysctl_kern_urnd, 0, NULL, 0, 695 CTL_KERN, KERN_URND, CTL_EOL); 696 sysctl_createv(clog, 0, NULL, NULL, 697 CTLFLAG_PERMANENT, 698 CTLTYPE_INT, "arandom", 699 SYSCTL_DESCR("n bytes of random data"), 700 sysctl_kern_arnd, 0, NULL, 0, 701 CTL_KERN, KERN_ARND, CTL_EOL); 702 sysctl_createv(clog, 0, NULL, NULL, 703 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 704 CTLTYPE_INT, "labelsector", 705 SYSCTL_DESCR("Sector number containing the disklabel"), 706 NULL, LABELSECTOR, NULL, 0, 707 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 708 sysctl_createv(clog, 0, NULL, NULL, 709 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 710 CTLTYPE_INT, "labeloffset", 711 SYSCTL_DESCR("Offset of the disklabel within the " 712 "sector"), 713 NULL, LABELOFFSET, NULL, 0, 714 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 715 sysctl_createv(clog, 0, NULL, NULL, 716 CTLFLAG_PERMANENT, 717 CTLTYPE_NODE, "lwp", 718 SYSCTL_DESCR("System-wide LWP information"), 719 sysctl_kern_lwp, 0, NULL, 0, 720 CTL_KERN, KERN_LWP, CTL_EOL); 721 sysctl_createv(clog, 0, NULL, NULL, 722 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 723 CTLTYPE_INT, "forkfsleep", 724 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 725 "to process limits"), 726 sysctl_kern_forkfsleep, 0, NULL, 0, 727 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 728 sysctl_createv(clog, 0, NULL, NULL, 729 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 730 CTLTYPE_INT, "posix_threads", 731 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 732 "Threads option to which the system " 733 "attempts to conform"), 734 /* XXX _POSIX_VERSION */ 735 NULL, _POSIX_THREADS, NULL, 0, 736 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 737 sysctl_createv(clog, 0, NULL, NULL, 738 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 739 CTLTYPE_INT, "posix_semaphores", 740 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 741 "Semaphores option to which the system " 742 "attempts to conform"), NULL, 743 #ifdef P1003_1B_SEMAPHORE 744 200112, 745 #else /* P1003_1B_SEMAPHORE */ 746 0, 747 #endif /* P1003_1B_SEMAPHORE */ 748 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 749 sysctl_createv(clog, 0, NULL, NULL, 750 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 751 CTLTYPE_INT, "posix_barriers", 752 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 753 "Barriers option to which the system " 754 "attempts to conform"), 755 /* XXX _POSIX_VERSION */ 756 NULL, _POSIX_BARRIERS, NULL, 0, 757 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 758 sysctl_createv(clog, 0, NULL, NULL, 759 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 760 CTLTYPE_INT, "posix_timers", 761 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 762 "Timers option to which the system " 763 "attempts to conform"), 764 /* XXX _POSIX_VERSION */ 765 NULL, _POSIX_TIMERS, NULL, 0, 766 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 767 sysctl_createv(clog, 0, NULL, NULL, 768 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 769 CTLTYPE_INT, "posix_spin_locks", 770 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 771 "Locks option to which the system attempts " 772 "to conform"), 773 /* XXX _POSIX_VERSION */ 774 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 775 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 776 sysctl_createv(clog, 0, NULL, NULL, 777 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 778 CTLTYPE_INT, "posix_reader_writer_locks", 779 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 780 "Read-Write Locks option to which the " 781 "system attempts to conform"), 782 /* XXX _POSIX_VERSION */ 783 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 784 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 785 sysctl_createv(clog, 0, NULL, NULL, 786 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 787 CTLTYPE_INT, "dump_on_panic", 788 SYSCTL_DESCR("Perform a crash dump on system panic"), 789 NULL, 0, &dumponpanic, 0, 790 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 791 #ifdef DIAGNOSTIC 792 sysctl_createv(clog, 0, NULL, NULL, 793 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 794 CTLTYPE_INT, "panic_now", 795 SYSCTL_DESCR("Trigger a panic"), 796 sysctl_kern_trigger_panic, 0, NULL, 0, 797 CTL_KERN, CTL_CREATE, CTL_EOL); 798 #endif 799 sysctl_createv(clog, 0, NULL, NULL, 800 CTLFLAG_PERMANENT, 801 CTLTYPE_INT, "root_partition", 802 SYSCTL_DESCR("Root partition on the root device"), 803 sysctl_kern_root_partition, 0, NULL, 0, 804 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 805 sysctl_createv(clog, 0, NULL, NULL, 806 CTLFLAG_PERMANENT, 807 CTLTYPE_STRUCT, "drivers", 808 SYSCTL_DESCR("List of all drivers with block and " 809 "character device numbers"), 810 sysctl_kern_drivers, 0, NULL, 0, 811 CTL_KERN, KERN_DRIVERS, CTL_EOL); 812 sysctl_createv(clog, 0, NULL, NULL, 813 CTLFLAG_PERMANENT, 814 CTLTYPE_STRUCT, "file2", 815 SYSCTL_DESCR("System open file table"), 816 sysctl_kern_file2, 0, NULL, 0, 817 CTL_KERN, KERN_FILE2, CTL_EOL); 818 sysctl_createv(clog, 0, NULL, NULL, 819 CTLFLAG_PERMANENT, 820 CTLTYPE_STRUCT, "cp_id", 821 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 822 sysctl_kern_cpid, 0, NULL, 0, 823 CTL_KERN, KERN_CP_ID, CTL_EOL); 824 sysctl_createv(clog, 0, NULL, &rnode, 825 CTLFLAG_PERMANENT, 826 CTLTYPE_NODE, "coredump", 827 SYSCTL_DESCR("Coredump settings."), 828 NULL, 0, NULL, 0, 829 CTL_KERN, CTL_CREATE, CTL_EOL); 830 sysctl_createv(clog, 0, &rnode, &rnode, 831 CTLFLAG_PERMANENT, 832 CTLTYPE_NODE, "setid", 833 SYSCTL_DESCR("Set-id processes' coredump settings."), 834 NULL, 0, NULL, 0, 835 CTL_CREATE, CTL_EOL); 836 sysctl_createv(clog, 0, &rnode, NULL, 837 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 838 CTLTYPE_INT, "dump", 839 SYSCTL_DESCR("Allow set-id processes to dump core."), 840 sysctl_security_setidcore, 0, &security_setidcore_dump, 841 sizeof(security_setidcore_dump), 842 CTL_CREATE, CTL_EOL); 843 sysctl_createv(clog, 0, &rnode, NULL, 844 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 845 CTLTYPE_STRING, "path", 846 SYSCTL_DESCR("Path pattern for set-id coredumps."), 847 sysctl_security_setidcorename, 0, 848 &security_setidcore_path, 849 sizeof(security_setidcore_path), 850 CTL_CREATE, CTL_EOL); 851 sysctl_createv(clog, 0, &rnode, NULL, 852 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 853 CTLTYPE_INT, "owner", 854 SYSCTL_DESCR("Owner id for set-id processes' cores."), 855 sysctl_security_setidcore, 0, &security_setidcore_owner, 856 0, 857 CTL_CREATE, CTL_EOL); 858 sysctl_createv(clog, 0, &rnode, NULL, 859 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 860 CTLTYPE_INT, "group", 861 SYSCTL_DESCR("Group id for set-id processes' cores."), 862 sysctl_security_setidcore, 0, &security_setidcore_group, 863 0, 864 CTL_CREATE, CTL_EOL); 865 sysctl_createv(clog, 0, &rnode, NULL, 866 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 867 CTLTYPE_INT, "mode", 868 SYSCTL_DESCR("Mode for set-id processes' cores."), 869 sysctl_security_setidcore, 0, &security_setidcore_mode, 870 0, 871 CTL_CREATE, CTL_EOL); 872 } 873 874 SYSCTL_SETUP(sysctl_kern_proc_setup, 875 "sysctl kern.proc/proc2/proc_args subtree setup") 876 { 877 878 sysctl_createv(clog, 0, NULL, NULL, 879 CTLFLAG_PERMANENT, 880 CTLTYPE_NODE, "kern", NULL, 881 NULL, 0, NULL, 0, 882 CTL_KERN, CTL_EOL); 883 884 sysctl_createv(clog, 0, NULL, NULL, 885 CTLFLAG_PERMANENT, 886 CTLTYPE_NODE, "proc", 887 SYSCTL_DESCR("System-wide process information"), 888 sysctl_doeproc, 0, NULL, 0, 889 CTL_KERN, KERN_PROC, CTL_EOL); 890 sysctl_createv(clog, 0, NULL, NULL, 891 CTLFLAG_PERMANENT, 892 CTLTYPE_NODE, "proc2", 893 SYSCTL_DESCR("Machine-independent process information"), 894 sysctl_doeproc, 0, NULL, 0, 895 CTL_KERN, KERN_PROC2, CTL_EOL); 896 sysctl_createv(clog, 0, NULL, NULL, 897 CTLFLAG_PERMANENT, 898 CTLTYPE_NODE, "proc_args", 899 SYSCTL_DESCR("Process argument information"), 900 sysctl_kern_proc_args, 0, NULL, 0, 901 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 902 903 /* 904 "nodes" under these: 905 906 KERN_PROC_ALL 907 KERN_PROC_PID pid 908 KERN_PROC_PGRP pgrp 909 KERN_PROC_SESSION sess 910 KERN_PROC_TTY tty 911 KERN_PROC_UID uid 912 KERN_PROC_RUID uid 913 KERN_PROC_GID gid 914 KERN_PROC_RGID gid 915 916 all in all, probably not worth the effort... 917 */ 918 } 919 920 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 921 { 922 u_int u; 923 u_quad_t q; 924 925 sysctl_createv(clog, 0, NULL, NULL, 926 CTLFLAG_PERMANENT, 927 CTLTYPE_NODE, "hw", NULL, 928 NULL, 0, NULL, 0, 929 CTL_HW, CTL_EOL); 930 931 sysctl_createv(clog, 0, NULL, NULL, 932 CTLFLAG_PERMANENT, 933 CTLTYPE_STRING, "machine", 934 SYSCTL_DESCR("Machine class"), 935 NULL, 0, machine, 0, 936 CTL_HW, HW_MACHINE, CTL_EOL); 937 sysctl_createv(clog, 0, NULL, NULL, 938 CTLFLAG_PERMANENT, 939 CTLTYPE_STRING, "model", 940 SYSCTL_DESCR("Machine model"), 941 NULL, 0, cpu_model, 0, 942 CTL_HW, HW_MODEL, CTL_EOL); 943 sysctl_createv(clog, 0, NULL, NULL, 944 CTLFLAG_PERMANENT, 945 CTLTYPE_INT, "ncpu", 946 SYSCTL_DESCR("Number of active CPUs"), 947 sysctl_hw_ncpu, 0, NULL, 0, 948 CTL_HW, HW_NCPU, CTL_EOL); 949 sysctl_createv(clog, 0, NULL, NULL, 950 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 951 CTLTYPE_INT, "byteorder", 952 SYSCTL_DESCR("System byte order"), 953 NULL, BYTE_ORDER, NULL, 0, 954 CTL_HW, HW_BYTEORDER, CTL_EOL); 955 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 956 UINT_MAX : physmem * PAGE_SIZE; 957 sysctl_createv(clog, 0, NULL, NULL, 958 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 959 CTLTYPE_INT, "physmem", 960 SYSCTL_DESCR("Bytes of physical memory"), 961 NULL, u, NULL, 0, 962 CTL_HW, HW_PHYSMEM, CTL_EOL); 963 sysctl_createv(clog, 0, NULL, NULL, 964 CTLFLAG_PERMANENT, 965 CTLTYPE_INT, "usermem", 966 SYSCTL_DESCR("Bytes of non-kernel memory"), 967 sysctl_hw_usermem, 0, NULL, 0, 968 CTL_HW, HW_USERMEM, CTL_EOL); 969 sysctl_createv(clog, 0, NULL, NULL, 970 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 971 CTLTYPE_INT, "pagesize", 972 SYSCTL_DESCR("Software page size"), 973 NULL, PAGE_SIZE, NULL, 0, 974 CTL_HW, HW_PAGESIZE, CTL_EOL); 975 sysctl_createv(clog, 0, NULL, NULL, 976 CTLFLAG_PERMANENT, 977 CTLTYPE_STRING, "machine_arch", 978 SYSCTL_DESCR("Machine CPU class"), 979 NULL, 0, machine_arch, 0, 980 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 981 sysctl_createv(clog, 0, NULL, NULL, 982 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 983 CTLTYPE_INT, "alignbytes", 984 SYSCTL_DESCR("Alignment constraint for all possible " 985 "data types"), 986 NULL, ALIGNBYTES, NULL, 0, 987 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 988 sysctl_createv(clog, 0, NULL, NULL, 989 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 990 CTLTYPE_STRING, "cnmagic", 991 SYSCTL_DESCR("Console magic key sequence"), 992 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 993 CTL_HW, HW_CNMAGIC, CTL_EOL); 994 q = (u_quad_t)physmem * PAGE_SIZE; 995 sysctl_createv(clog, 0, NULL, NULL, 996 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 997 CTLTYPE_QUAD, "physmem64", 998 SYSCTL_DESCR("Bytes of physical memory"), 999 NULL, q, NULL, 0, 1000 CTL_HW, HW_PHYSMEM64, CTL_EOL); 1001 sysctl_createv(clog, 0, NULL, NULL, 1002 CTLFLAG_PERMANENT, 1003 CTLTYPE_QUAD, "usermem64", 1004 SYSCTL_DESCR("Bytes of non-kernel memory"), 1005 sysctl_hw_usermem, 0, NULL, 0, 1006 CTL_HW, HW_USERMEM64, CTL_EOL); 1007 } 1008 1009 #ifdef DEBUG 1010 /* 1011 * Debugging related system variables. 1012 */ 1013 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 1014 struct ctldebug debug5, debug6, debug7, debug8, debug9; 1015 struct ctldebug debug10, debug11, debug12, debug13, debug14; 1016 struct ctldebug debug15, debug16, debug17, debug18, debug19; 1017 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 1018 &debug0, &debug1, &debug2, &debug3, &debug4, 1019 &debug5, &debug6, &debug7, &debug8, &debug9, 1020 &debug10, &debug11, &debug12, &debug13, &debug14, 1021 &debug15, &debug16, &debug17, &debug18, &debug19, 1022 }; 1023 1024 /* 1025 * this setup routine is a replacement for debug_sysctl() 1026 * 1027 * note that it creates several nodes per defined debug variable 1028 */ 1029 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1030 { 1031 struct ctldebug *cdp; 1032 char nodename[20]; 1033 int i; 1034 1035 /* 1036 * two ways here: 1037 * 1038 * the "old" way (debug.name -> value) which was emulated by 1039 * the sysctl(8) binary 1040 * 1041 * the new way, which the sysctl(8) binary was actually using 1042 1043 node debug 1044 node debug.0 1045 string debug.0.name 1046 int debug.0.value 1047 int debug.name 1048 1049 */ 1050 1051 sysctl_createv(clog, 0, NULL, NULL, 1052 CTLFLAG_PERMANENT, 1053 CTLTYPE_NODE, "debug", NULL, 1054 NULL, 0, NULL, 0, 1055 CTL_DEBUG, CTL_EOL); 1056 1057 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1058 cdp = debugvars[i]; 1059 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1060 continue; 1061 1062 snprintf(nodename, sizeof(nodename), "debug%d", i); 1063 sysctl_createv(clog, 0, NULL, NULL, 1064 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1065 CTLTYPE_NODE, nodename, NULL, 1066 NULL, 0, NULL, 0, 1067 CTL_DEBUG, i, CTL_EOL); 1068 sysctl_createv(clog, 0, NULL, NULL, 1069 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1070 CTLTYPE_STRING, "name", NULL, 1071 /*XXXUNCONST*/ 1072 NULL, 0, __UNCONST(cdp->debugname), 0, 1073 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1074 sysctl_createv(clog, 0, NULL, NULL, 1075 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1076 CTLTYPE_INT, "value", NULL, 1077 NULL, 0, cdp->debugvar, 0, 1078 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1079 sysctl_createv(clog, 0, NULL, NULL, 1080 CTLFLAG_PERMANENT, 1081 CTLTYPE_INT, cdp->debugname, NULL, 1082 NULL, 0, cdp->debugvar, 0, 1083 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1084 } 1085 } 1086 #endif /* DEBUG */ 1087 1088 /* 1089 * ******************************************************************** 1090 * section 2: private node-specific helper routines. 1091 * ******************************************************************** 1092 */ 1093 1094 #ifdef DIAGNOSTIC 1095 static int 1096 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1097 { 1098 int newtrig, error; 1099 struct sysctlnode node; 1100 1101 newtrig = 0; 1102 node = *rnode; 1103 node.sysctl_data = &newtrig; 1104 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1105 if (error || newp == NULL) 1106 return (error); 1107 1108 if (newtrig != 0) 1109 panic("Panic triggered"); 1110 1111 return (error); 1112 } 1113 #endif 1114 1115 /* 1116 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1117 * new value is lower than desiredvnodes and then calls reinit 1118 * routines that needs to adjust to the new value. 1119 */ 1120 static int 1121 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1122 { 1123 int error, new_vnodes, old_vnodes; 1124 struct sysctlnode node; 1125 1126 new_vnodes = desiredvnodes; 1127 node = *rnode; 1128 node.sysctl_data = &new_vnodes; 1129 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1130 if (error || newp == NULL) 1131 return (error); 1132 1133 old_vnodes = desiredvnodes; 1134 desiredvnodes = new_vnodes; 1135 if (new_vnodes < old_vnodes) { 1136 error = vfs_drainvnodes(new_vnodes, l); 1137 if (error) { 1138 desiredvnodes = old_vnodes; 1139 return (error); 1140 } 1141 } 1142 vfs_reinit(); 1143 nchreinit(); 1144 1145 return (0); 1146 } 1147 1148 /* 1149 * sysctl helper routine for rtc_offset - set time after changes 1150 */ 1151 static int 1152 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1153 { 1154 struct timespec ts, delta; 1155 int error, new_rtc_offset; 1156 struct sysctlnode node; 1157 1158 new_rtc_offset = rtc_offset; 1159 node = *rnode; 1160 node.sysctl_data = &new_rtc_offset; 1161 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1162 if (error || newp == NULL) 1163 return (error); 1164 1165 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1166 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1167 (void *)(u_long)new_rtc_offset, NULL, NULL)) 1168 return (EPERM); 1169 if (rtc_offset == new_rtc_offset) 1170 return (0); 1171 1172 /* if we change the offset, adjust the time */ 1173 nanotime(&ts); 1174 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1175 delta.tv_nsec = 0; 1176 timespecadd(&ts, &delta, &ts); 1177 rtc_offset = new_rtc_offset; 1178 settime(l->l_proc, &ts); 1179 1180 return (0); 1181 } 1182 1183 /* 1184 * sysctl helper routine for kern.maxproc. ensures that the new 1185 * values are not too low or too high. 1186 */ 1187 static int 1188 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1189 { 1190 int error, nmaxproc; 1191 struct sysctlnode node; 1192 1193 nmaxproc = maxproc; 1194 node = *rnode; 1195 node.sysctl_data = &nmaxproc; 1196 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1197 if (error || newp == NULL) 1198 return (error); 1199 1200 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1201 return (EINVAL); 1202 #ifdef __HAVE_CPU_MAXPROC 1203 if (nmaxproc > cpu_maxproc()) 1204 return (EINVAL); 1205 #endif 1206 maxproc = nmaxproc; 1207 1208 return (0); 1209 } 1210 1211 /* 1212 * sysctl helper function for kern.hostid. the hostid is a long, but 1213 * we export it as an int, so we need to give it a little help. 1214 */ 1215 static int 1216 sysctl_kern_hostid(SYSCTLFN_ARGS) 1217 { 1218 int error, inthostid; 1219 struct sysctlnode node; 1220 1221 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1222 node = *rnode; 1223 node.sysctl_data = &inthostid; 1224 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1225 if (error || newp == NULL) 1226 return (error); 1227 1228 hostid = (unsigned)inthostid; 1229 1230 return (0); 1231 } 1232 1233 /* 1234 * sysctl helper function for kern.hostname and kern.domainnname. 1235 * resets the relevant recorded length when the underlying name is 1236 * changed. 1237 */ 1238 static int 1239 sysctl_setlen(SYSCTLFN_ARGS) 1240 { 1241 int error; 1242 1243 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1244 if (error || newp == NULL) 1245 return (error); 1246 1247 switch (rnode->sysctl_num) { 1248 case KERN_HOSTNAME: 1249 hostnamelen = strlen((const char*)rnode->sysctl_data); 1250 break; 1251 case KERN_DOMAINNAME: 1252 domainnamelen = strlen((const char*)rnode->sysctl_data); 1253 break; 1254 } 1255 1256 return (0); 1257 } 1258 1259 /* 1260 * sysctl helper routine for kern.clockrate. assembles a struct on 1261 * the fly to be returned to the caller. 1262 */ 1263 static int 1264 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1265 { 1266 struct clockinfo clkinfo; 1267 struct sysctlnode node; 1268 1269 clkinfo.tick = tick; 1270 clkinfo.tickadj = tickadj; 1271 clkinfo.hz = hz; 1272 clkinfo.profhz = profhz; 1273 clkinfo.stathz = stathz ? stathz : hz; 1274 1275 node = *rnode; 1276 node.sysctl_data = &clkinfo; 1277 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1278 } 1279 1280 1281 /* 1282 * sysctl helper routine for kern.file pseudo-subtree. 1283 */ 1284 static int 1285 sysctl_kern_file(SYSCTLFN_ARGS) 1286 { 1287 int error; 1288 size_t buflen; 1289 struct file *fp; 1290 char *start, *where; 1291 1292 start = where = oldp; 1293 buflen = *oldlenp; 1294 if (where == NULL) { 1295 /* 1296 * overestimate by 10 files 1297 */ 1298 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1299 return (0); 1300 } 1301 1302 /* 1303 * first dcopyout filehead 1304 */ 1305 if (buflen < sizeof(filehead)) { 1306 *oldlenp = 0; 1307 return (0); 1308 } 1309 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1310 if (error) 1311 return (error); 1312 buflen -= sizeof(filehead); 1313 where += sizeof(filehead); 1314 1315 /* 1316 * followed by an array of file structures 1317 */ 1318 LIST_FOREACH(fp, &filehead, f_list) { 1319 if (kauth_authorize_generic(l->l_cred, 1320 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1321 continue; 1322 if (buflen < sizeof(struct file)) { 1323 *oldlenp = where - start; 1324 return (ENOMEM); 1325 } 1326 error = dcopyout(l, fp, where, sizeof(struct file)); 1327 if (error) 1328 return (error); 1329 buflen -= sizeof(struct file); 1330 where += sizeof(struct file); 1331 } 1332 *oldlenp = where - start; 1333 return (0); 1334 } 1335 1336 /* 1337 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1338 * asserts that the assigned value is in the correct range. 1339 */ 1340 static int 1341 sysctl_kern_autonice(SYSCTLFN_ARGS) 1342 { 1343 int error, t = 0; 1344 struct sysctlnode node; 1345 1346 node = *rnode; 1347 t = *(int*)node.sysctl_data; 1348 node.sysctl_data = &t; 1349 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1350 if (error || newp == NULL) 1351 return (error); 1352 1353 switch (node.sysctl_num) { 1354 case KERN_AUTONICETIME: 1355 if (t >= 0) 1356 autonicetime = t; 1357 break; 1358 case KERN_AUTONICEVAL: 1359 if (t < PRIO_MIN) 1360 t = PRIO_MIN; 1361 else if (t > PRIO_MAX) 1362 t = PRIO_MAX; 1363 autoniceval = t; 1364 break; 1365 } 1366 1367 return (0); 1368 } 1369 1370 /* 1371 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1372 * former it merely checks the message buffer is set up. for the latter, 1373 * it also copies out the data if necessary. 1374 */ 1375 static int 1376 sysctl_msgbuf(SYSCTLFN_ARGS) 1377 { 1378 char *where = oldp; 1379 size_t len, maxlen; 1380 long beg, end; 1381 int error; 1382 1383 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1384 msgbufenabled = 0; 1385 return (ENXIO); 1386 } 1387 1388 switch (rnode->sysctl_num) { 1389 case KERN_MSGBUFSIZE: { 1390 struct sysctlnode node = *rnode; 1391 int msg_bufs = (int)msgbufp->msg_bufs; 1392 node.sysctl_data = &msg_bufs; 1393 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1394 } 1395 case KERN_MSGBUF: 1396 break; 1397 default: 1398 return (EOPNOTSUPP); 1399 } 1400 1401 if (newp != NULL) 1402 return (EPERM); 1403 1404 if (oldp == NULL) { 1405 /* always return full buffer size */ 1406 *oldlenp = msgbufp->msg_bufs; 1407 return (0); 1408 } 1409 1410 error = 0; 1411 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1412 1413 /* 1414 * First, copy from the write pointer to the end of 1415 * message buffer. 1416 */ 1417 beg = msgbufp->msg_bufx; 1418 end = msgbufp->msg_bufs; 1419 while (maxlen > 0) { 1420 len = MIN(end - beg, maxlen); 1421 if (len == 0) 1422 break; 1423 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1424 if (error) 1425 break; 1426 where += len; 1427 maxlen -= len; 1428 1429 /* 1430 * ... then, copy from the beginning of message buffer to 1431 * the write pointer. 1432 */ 1433 beg = 0; 1434 end = msgbufp->msg_bufx; 1435 } 1436 1437 return (error); 1438 } 1439 1440 /* 1441 * sysctl helper routine for kern.defcorename. in the case of a new 1442 * string being assigned, check that it's not a zero-length string. 1443 * (XXX the check in -current doesn't work, but do we really care?) 1444 */ 1445 static int 1446 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1447 { 1448 int error; 1449 char *newcorename; 1450 struct sysctlnode node; 1451 1452 newcorename = PNBUF_GET(); 1453 node = *rnode; 1454 node.sysctl_data = &newcorename[0]; 1455 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1456 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1457 if (error || newp == NULL) { 1458 goto done; 1459 } 1460 1461 /* 1462 * when sysctl_lookup() deals with a string, it's guaranteed 1463 * to come back nul terminated. so there. :) 1464 */ 1465 if (strlen(newcorename) == 0) { 1466 error = EINVAL; 1467 } else { 1468 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1469 error = 0; 1470 } 1471 done: 1472 PNBUF_PUT(newcorename); 1473 return error; 1474 } 1475 1476 /* 1477 * sysctl helper routine for kern.cp_time node. adds up cpu time 1478 * across all cpus. 1479 */ 1480 static int 1481 sysctl_kern_cptime(SYSCTLFN_ARGS) 1482 { 1483 struct sysctlnode node = *rnode; 1484 1485 #ifndef MULTIPROCESSOR 1486 1487 if (namelen == 1) { 1488 if (name[0] != 0) 1489 return (ENOENT); 1490 /* 1491 * you're allowed to ask for the zero'th processor 1492 */ 1493 name++; 1494 namelen--; 1495 } 1496 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1497 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1498 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1499 1500 #else /* MULTIPROCESSOR */ 1501 1502 uint64_t *cp_time = NULL; 1503 int error, n = ncpu, i; 1504 struct cpu_info *ci; 1505 CPU_INFO_ITERATOR cii; 1506 1507 /* 1508 * if you specifically pass a buffer that is the size of the 1509 * sum, or if you are probing for the size, you get the "sum" 1510 * of cp_time (and the size thereof) across all processors. 1511 * 1512 * alternately, you can pass an additional mib number and get 1513 * cp_time for that particular processor. 1514 */ 1515 switch (namelen) { 1516 case 0: 1517 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1518 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1519 n = -1; /* SUM */ 1520 } 1521 else { 1522 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1523 n = -2; /* ALL */ 1524 } 1525 break; 1526 case 1: 1527 if (name[0] < 0 || name[0] >= n) 1528 return (ENOENT); /* ENOSUCHPROCESSOR */ 1529 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1530 n = name[0]; 1531 /* 1532 * adjust these so that sysctl_lookup() will be happy 1533 */ 1534 name++; 1535 namelen--; 1536 break; 1537 default: 1538 return (EINVAL); 1539 } 1540 1541 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1542 if (cp_time == NULL) 1543 return (ENOMEM); 1544 node.sysctl_data = cp_time; 1545 memset(cp_time, 0, node.sysctl_size); 1546 1547 for (CPU_INFO_FOREACH(cii, ci)) { 1548 if (n <= 0) 1549 for (i = 0; i < CPUSTATES; i++) 1550 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1551 /* 1552 * if a specific processor was requested and we just 1553 * did it, we're done here 1554 */ 1555 if (n == 0) 1556 break; 1557 /* 1558 * if doing "all", skip to next cp_time set for next processor 1559 */ 1560 if (n == -2) 1561 cp_time += CPUSTATES; 1562 /* 1563 * if we're doing a specific processor, we're one 1564 * processor closer 1565 */ 1566 if (n > 0) 1567 n--; 1568 } 1569 1570 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1571 free(node.sysctl_data, M_TEMP); 1572 return (error); 1573 1574 #endif /* MULTIPROCESSOR */ 1575 } 1576 1577 #if NPTY > 0 1578 /* 1579 * sysctl helper routine for kern.maxptys. ensures that any new value 1580 * is acceptable to the pty subsystem. 1581 */ 1582 static int 1583 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1584 { 1585 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1586 int error, xmax; 1587 struct sysctlnode node; 1588 1589 /* get current value of maxptys */ 1590 xmax = pty_maxptys(0, 0); 1591 1592 node = *rnode; 1593 node.sysctl_data = &xmax; 1594 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1595 if (error || newp == NULL) 1596 return (error); 1597 1598 if (xmax != pty_maxptys(xmax, 1)) 1599 return (EINVAL); 1600 1601 return (0); 1602 } 1603 #endif /* NPTY > 0 */ 1604 1605 /* 1606 * sysctl helper routine for kern.sbmax. basically just ensures that 1607 * any new value is not too small. 1608 */ 1609 static int 1610 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1611 { 1612 int error, new_sbmax; 1613 struct sysctlnode node; 1614 1615 new_sbmax = sb_max; 1616 node = *rnode; 1617 node.sysctl_data = &new_sbmax; 1618 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1619 if (error || newp == NULL) 1620 return (error); 1621 1622 error = sb_max_set(new_sbmax); 1623 1624 return (error); 1625 } 1626 1627 /* 1628 * sysctl helper routine for kern.urandom node. picks a random number 1629 * for you. 1630 */ 1631 static int 1632 sysctl_kern_urnd(SYSCTLFN_ARGS) 1633 { 1634 #if NRND > 0 1635 int v; 1636 1637 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1638 struct sysctlnode node = *rnode; 1639 node.sysctl_data = &v; 1640 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1641 } 1642 else 1643 return (EIO); /*XXX*/ 1644 #else 1645 return (EOPNOTSUPP); 1646 #endif 1647 } 1648 1649 /* 1650 * sysctl helper routine for kern.arandom node. picks a random number 1651 * for you. 1652 */ 1653 static int 1654 sysctl_kern_arnd(SYSCTLFN_ARGS) 1655 { 1656 #if NRND > 0 1657 int error; 1658 void *v; 1659 struct sysctlnode node = *rnode; 1660 1661 if (*oldlenp == 0) 1662 return 0; 1663 if (*oldlenp > 8192) 1664 return E2BIG; 1665 1666 v = malloc(*oldlenp, M_TEMP, M_WAITOK); 1667 1668 arc4randbytes(v, *oldlenp); 1669 node.sysctl_data = v; 1670 node.sysctl_size = *oldlenp; 1671 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1672 free(v, M_TEMP); 1673 return error; 1674 #else 1675 return (EOPNOTSUPP); 1676 #endif 1677 } 1678 /* 1679 * sysctl helper routine to do kern.lwp.* work. 1680 */ 1681 static int 1682 sysctl_kern_lwp(SYSCTLFN_ARGS) 1683 { 1684 struct kinfo_lwp klwp; 1685 struct proc *p; 1686 struct lwp *l2; 1687 char *where, *dp; 1688 int pid, elem_size, elem_count; 1689 int buflen, needed, error; 1690 1691 if (namelen == 1 && name[0] == CTL_QUERY) 1692 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1693 1694 dp = where = oldp; 1695 buflen = where != NULL ? *oldlenp : 0; 1696 error = needed = 0; 1697 1698 if (newp != NULL || namelen != 3) 1699 return (EINVAL); 1700 pid = name[0]; 1701 elem_size = name[1]; 1702 elem_count = name[2]; 1703 1704 mutex_enter(&proclist_lock); 1705 p = p_find(pid, PFIND_LOCKED); 1706 if (p == NULL) { 1707 mutex_exit(&proclist_lock); 1708 return (ESRCH); 1709 } 1710 mutex_enter(&p->p_smutex); 1711 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1712 if (buflen >= elem_size && elem_count > 0) { 1713 lwp_lock(l2); 1714 fill_lwp(l2, &klwp); 1715 lwp_unlock(l2); 1716 1717 /* 1718 * Copy out elem_size, but not larger than 1719 * the size of a struct kinfo_proc2. 1720 * 1721 * XXX We should not be holding p_smutex, but 1722 * for now, the buffer is wired. Fix later. 1723 */ 1724 error = dcopyout(l, &klwp, dp, 1725 min(sizeof(klwp), elem_size)); 1726 if (error) 1727 goto cleanup; 1728 dp += elem_size; 1729 buflen -= elem_size; 1730 elem_count--; 1731 } 1732 needed += elem_size; 1733 } 1734 mutex_exit(&p->p_smutex); 1735 mutex_exit(&proclist_lock); 1736 1737 if (where != NULL) { 1738 *oldlenp = dp - where; 1739 if (needed > *oldlenp) 1740 return (ENOMEM); 1741 } else { 1742 needed += KERN_LWPSLOP; 1743 *oldlenp = needed; 1744 } 1745 return (0); 1746 cleanup: 1747 return (error); 1748 } 1749 1750 /* 1751 * sysctl helper routine for kern.forkfsleep node. ensures that the 1752 * given value is not too large or two small, and is at least one 1753 * timer tick if not zero. 1754 */ 1755 static int 1756 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1757 { 1758 /* userland sees value in ms, internally is in ticks */ 1759 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1760 int error, timo, lsleep; 1761 struct sysctlnode node; 1762 1763 lsleep = forkfsleep * 1000 / hz; 1764 node = *rnode; 1765 node.sysctl_data = &lsleep; 1766 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1767 if (error || newp == NULL) 1768 return (error); 1769 1770 /* refuse negative values, and overly 'long time' */ 1771 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1772 return (EINVAL); 1773 1774 timo = mstohz(lsleep); 1775 1776 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1777 if (lsleep != 0 && timo == 0) 1778 forkfsleep = 1; 1779 else 1780 forkfsleep = timo; 1781 1782 return (0); 1783 } 1784 1785 /* 1786 * sysctl helper routine for kern.root_partition 1787 */ 1788 static int 1789 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1790 { 1791 int rootpart = DISKPART(rootdev); 1792 struct sysctlnode node = *rnode; 1793 1794 node.sysctl_data = &rootpart; 1795 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1796 } 1797 1798 /* 1799 * sysctl helper function for kern.drivers 1800 */ 1801 static int 1802 sysctl_kern_drivers(SYSCTLFN_ARGS) 1803 { 1804 int error; 1805 size_t buflen; 1806 struct kinfo_drivers kd; 1807 char *start, *where; 1808 const char *dname; 1809 int i; 1810 extern struct devsw_conv *devsw_conv; 1811 extern int max_devsw_convs; 1812 1813 if (newp != NULL || namelen != 0) 1814 return (EINVAL); 1815 1816 start = where = oldp; 1817 buflen = *oldlenp; 1818 if (where == NULL) { 1819 *oldlenp = max_devsw_convs * sizeof kd; 1820 return 0; 1821 } 1822 1823 /* 1824 * An array of kinfo_drivers structures 1825 */ 1826 error = 0; 1827 for (i = 0; i < max_devsw_convs; i++) { 1828 dname = devsw_conv[i].d_name; 1829 if (dname == NULL) 1830 continue; 1831 if (buflen < sizeof kd) { 1832 error = ENOMEM; 1833 break; 1834 } 1835 memset(&kd, 0, sizeof(kd)); 1836 kd.d_bmajor = devsw_conv[i].d_bmajor; 1837 kd.d_cmajor = devsw_conv[i].d_cmajor; 1838 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1839 error = dcopyout(l, &kd, where, sizeof kd); 1840 if (error != 0) 1841 break; 1842 buflen -= sizeof kd; 1843 where += sizeof kd; 1844 } 1845 *oldlenp = where - start; 1846 return error; 1847 } 1848 1849 /* 1850 * sysctl helper function for kern.file2 1851 */ 1852 static int 1853 sysctl_kern_file2(SYSCTLFN_ARGS) 1854 { 1855 struct proc *p; 1856 struct file *fp; 1857 struct filedesc *fd; 1858 struct kinfo_file kf; 1859 char *dp; 1860 u_int i, op; 1861 size_t len, needed, elem_size, out_size; 1862 int error, arg, elem_count; 1863 1864 if (namelen == 1 && name[0] == CTL_QUERY) 1865 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1866 1867 if (namelen != 4) 1868 return (EINVAL); 1869 1870 error = 0; 1871 dp = oldp; 1872 len = (oldp != NULL) ? *oldlenp : 0; 1873 op = name[0]; 1874 arg = name[1]; 1875 elem_size = name[2]; 1876 elem_count = name[3]; 1877 out_size = MIN(sizeof(kf), elem_size); 1878 needed = 0; 1879 1880 if (elem_size < 1 || elem_count < 0) 1881 return (EINVAL); 1882 1883 switch (op) { 1884 case KERN_FILE_BYFILE: 1885 /* 1886 * doesn't use arg so it must be zero 1887 */ 1888 if (arg != 0) 1889 return (EINVAL); 1890 LIST_FOREACH(fp, &filehead, f_list) { 1891 if (kauth_authorize_generic(l->l_cred, 1892 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1893 continue; 1894 if (len >= elem_size && elem_count > 0) { 1895 fill_file(&kf, fp, NULL, 0); 1896 error = dcopyout(l, &kf, dp, out_size); 1897 if (error) 1898 break; 1899 dp += elem_size; 1900 len -= elem_size; 1901 } 1902 if (elem_count > 0) { 1903 needed += elem_size; 1904 if (elem_count != INT_MAX) 1905 elem_count--; 1906 } 1907 } 1908 break; 1909 case KERN_FILE_BYPID: 1910 if (arg < -1) 1911 /* -1 means all processes */ 1912 return (EINVAL); 1913 mutex_enter(&proclist_lock); 1914 PROCLIST_FOREACH(p, &allproc) { 1915 if (p->p_stat == SIDL) 1916 /* skip embryonic processes */ 1917 continue; 1918 if (kauth_authorize_process(l->l_cred, 1919 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 1920 continue; 1921 if (arg > 0 && p->p_pid != arg) 1922 /* pick only the one we want */ 1923 /* XXX want 0 to mean "kernel files" */ 1924 continue; 1925 fd = p->p_fd; 1926 for (i = 0; i < fd->fd_nfiles; i++) { 1927 fp = fd->fd_ofiles[i]; 1928 if (fp == NULL || !FILE_IS_USABLE(fp)) 1929 continue; 1930 if (len >= elem_size && elem_count > 0) { 1931 fill_file(&kf, fd->fd_ofiles[i], 1932 p, i); 1933 error = dcopyout(l, &kf, dp, out_size); 1934 if (error) 1935 break; 1936 dp += elem_size; 1937 len -= elem_size; 1938 } 1939 if (elem_count > 0) { 1940 needed += elem_size; 1941 if (elem_count != INT_MAX) 1942 elem_count--; 1943 } 1944 } 1945 } 1946 mutex_exit(&proclist_lock); 1947 break; 1948 default: 1949 return (EINVAL); 1950 } 1951 1952 if (oldp == NULL) 1953 needed += KERN_FILESLOP * elem_size; 1954 *oldlenp = needed; 1955 1956 return (error); 1957 } 1958 1959 static void 1960 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 1961 { 1962 1963 memset(kp, 0, sizeof(*kp)); 1964 1965 kp->ki_fileaddr = PTRTOUINT64(fp); 1966 kp->ki_flag = fp->f_flag; 1967 kp->ki_iflags = fp->f_iflags; 1968 kp->ki_ftype = fp->f_type; 1969 kp->ki_count = fp->f_count; 1970 kp->ki_msgcount = fp->f_msgcount; 1971 kp->ki_usecount = fp->f_usecount; 1972 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 1973 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 1974 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 1975 kp->ki_fops = PTRTOUINT64(fp->f_ops); 1976 kp->ki_foffset = fp->f_offset; 1977 kp->ki_fdata = PTRTOUINT64(fp->f_data); 1978 1979 /* vnode information to glue this file to something */ 1980 if (fp->f_type == DTYPE_VNODE) { 1981 struct vnode *vp = (struct vnode *)fp->f_data; 1982 1983 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 1984 kp->ki_vsize = vp->v_size; 1985 kp->ki_vtype = vp->v_type; 1986 kp->ki_vtag = vp->v_tag; 1987 kp->ki_vdata = PTRTOUINT64(vp->v_data); 1988 } 1989 1990 /* process information when retrieved via KERN_FILE_BYPID */ 1991 if (p) { 1992 kp->ki_pid = p->p_pid; 1993 kp->ki_fd = i; 1994 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 1995 } 1996 } 1997 1998 static int 1999 sysctl_doeproc(SYSCTLFN_ARGS) 2000 { 2001 struct eproc *eproc; 2002 struct kinfo_proc2 *kproc2; 2003 struct kinfo_proc *dp; 2004 struct proc *p; 2005 const struct proclist_desc *pd; 2006 char *where, *dp2; 2007 int type, op, arg; 2008 u_int elem_size, elem_count; 2009 size_t buflen, needed; 2010 int error; 2011 2012 if (namelen == 1 && name[0] == CTL_QUERY) 2013 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2014 2015 dp = oldp; 2016 dp2 = where = oldp; 2017 buflen = where != NULL ? *oldlenp : 0; 2018 error = 0; 2019 needed = 0; 2020 type = rnode->sysctl_num; 2021 2022 if (type == KERN_PROC) { 2023 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2024 return (EINVAL); 2025 op = name[0]; 2026 if (op != KERN_PROC_ALL) 2027 arg = name[1]; 2028 else 2029 arg = 0; /* Quell compiler warning */ 2030 elem_size = elem_count = 0; /* Ditto */ 2031 } else { 2032 if (namelen != 4) 2033 return (EINVAL); 2034 op = name[0]; 2035 arg = name[1]; 2036 elem_size = name[2]; 2037 elem_count = name[3]; 2038 } 2039 2040 if (type == KERN_PROC) { 2041 eproc = malloc(sizeof(*eproc), M_TEMP, M_WAITOK); 2042 kproc2 = NULL; 2043 } else { 2044 eproc = NULL; 2045 kproc2 = malloc(sizeof(*kproc2), M_TEMP, M_WAITOK); 2046 } 2047 mutex_enter(&proclist_lock); 2048 2049 pd = proclists; 2050 again: 2051 PROCLIST_FOREACH(p, pd->pd_list) { 2052 /* 2053 * Skip embryonic processes. 2054 */ 2055 if (p->p_stat == SIDL) 2056 continue; 2057 2058 if (kauth_authorize_process(l->l_cred, 2059 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2060 continue; 2061 2062 /* 2063 * TODO - make more efficient (see notes below). 2064 * do by session. 2065 */ 2066 switch (op) { 2067 2068 case KERN_PROC_PID: 2069 /* could do this with just a lookup */ 2070 if (p->p_pid != (pid_t)arg) 2071 continue; 2072 break; 2073 2074 case KERN_PROC_PGRP: 2075 /* could do this by traversing pgrp */ 2076 if (p->p_pgrp->pg_id != (pid_t)arg) 2077 continue; 2078 break; 2079 2080 case KERN_PROC_SESSION: 2081 if (p->p_session->s_sid != (pid_t)arg) 2082 continue; 2083 break; 2084 2085 case KERN_PROC_TTY: 2086 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2087 if ((p->p_lflag & PL_CONTROLT) == 0 || 2088 p->p_session->s_ttyp == NULL || 2089 p->p_session->s_ttyvp != NULL) 2090 continue; 2091 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2092 p->p_session->s_ttyp == NULL) { 2093 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2094 continue; 2095 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2096 continue; 2097 break; 2098 2099 case KERN_PROC_UID: 2100 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2101 continue; 2102 break; 2103 2104 case KERN_PROC_RUID: 2105 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2106 continue; 2107 break; 2108 2109 case KERN_PROC_GID: 2110 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2111 continue; 2112 break; 2113 2114 case KERN_PROC_RGID: 2115 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2116 continue; 2117 break; 2118 2119 case KERN_PROC_ALL: 2120 /* allow everything */ 2121 break; 2122 2123 default: 2124 error = EINVAL; 2125 goto cleanup; 2126 } 2127 if (type == KERN_PROC) { 2128 if (buflen >= sizeof(struct kinfo_proc)) { 2129 fill_eproc(p, eproc); 2130 error = dcopyout(l, p, &dp->kp_proc, 2131 sizeof(struct proc)); 2132 if (error) 2133 goto cleanup; 2134 error = dcopyout(l, eproc, &dp->kp_eproc, 2135 sizeof(*eproc)); 2136 if (error) 2137 goto cleanup; 2138 dp++; 2139 buflen -= sizeof(struct kinfo_proc); 2140 } 2141 needed += sizeof(struct kinfo_proc); 2142 } else { /* KERN_PROC2 */ 2143 if (buflen >= elem_size && elem_count > 0) { 2144 fill_kproc2(p, kproc2); 2145 /* 2146 * Copy out elem_size, but not larger than 2147 * the size of a struct kinfo_proc2. 2148 */ 2149 error = dcopyout(l, kproc2, dp2, 2150 min(sizeof(*kproc2), elem_size)); 2151 if (error) 2152 goto cleanup; 2153 dp2 += elem_size; 2154 buflen -= elem_size; 2155 elem_count--; 2156 } 2157 needed += elem_size; 2158 } 2159 } 2160 pd++; 2161 if (pd->pd_list != NULL) 2162 goto again; 2163 mutex_exit(&proclist_lock); 2164 2165 if (where != NULL) { 2166 if (type == KERN_PROC) 2167 *oldlenp = (char *)dp - where; 2168 else 2169 *oldlenp = dp2 - where; 2170 if (needed > *oldlenp) { 2171 error = ENOMEM; 2172 goto out; 2173 } 2174 } else { 2175 needed += KERN_PROCSLOP; 2176 *oldlenp = needed; 2177 } 2178 if (kproc2) 2179 free(kproc2, M_TEMP); 2180 if (eproc) 2181 free(eproc, M_TEMP); 2182 return 0; 2183 cleanup: 2184 mutex_exit(&proclist_lock); 2185 out: 2186 if (kproc2) 2187 free(kproc2, M_TEMP); 2188 if (eproc) 2189 free(eproc, M_TEMP); 2190 return error; 2191 } 2192 2193 /* 2194 * sysctl helper routine for kern.proc_args pseudo-subtree. 2195 */ 2196 static int 2197 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2198 { 2199 struct ps_strings pss; 2200 struct proc *p; 2201 size_t len, i; 2202 struct uio auio; 2203 struct iovec aiov; 2204 pid_t pid; 2205 int nargv, type, error; 2206 char *arg; 2207 char **argv = NULL; 2208 char *tmp; 2209 struct vmspace *vmspace; 2210 vaddr_t psstr_addr; 2211 vaddr_t offsetn; 2212 vaddr_t offsetv; 2213 2214 if (namelen == 1 && name[0] == CTL_QUERY) 2215 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2216 2217 if (newp != NULL || namelen != 2) 2218 return (EINVAL); 2219 pid = name[0]; 2220 type = name[1]; 2221 2222 switch (type) { 2223 case KERN_PROC_ARGV: 2224 case KERN_PROC_NARGV: 2225 case KERN_PROC_ENV: 2226 case KERN_PROC_NENV: 2227 /* ok */ 2228 break; 2229 default: 2230 return (EINVAL); 2231 } 2232 2233 mutex_enter(&proclist_lock); 2234 2235 /* check pid */ 2236 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2237 error = EINVAL; 2238 goto out_locked; 2239 } 2240 2241 error = kauth_authorize_process(l->l_cred, 2242 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2243 if (error) { 2244 goto out_locked; 2245 } 2246 2247 /* only root or same user change look at the environment */ 2248 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2249 if (kauth_authorize_generic(l->l_cred, KAUTH_GENERIC_ISSUSER, 2250 NULL) != 0) { 2251 if (kauth_cred_getuid(l->l_cred) != 2252 kauth_cred_getuid(p->p_cred) || 2253 kauth_cred_getuid(l->l_cred) != 2254 kauth_cred_getsvuid(p->p_cred)) { 2255 error = EPERM; 2256 goto out_locked; 2257 } 2258 } 2259 } 2260 2261 if (oldp == NULL) { 2262 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2263 *oldlenp = sizeof (int); 2264 else 2265 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2266 error = 0; 2267 goto out_locked; 2268 } 2269 2270 /* 2271 * Zombies don't have a stack, so we can't read their psstrings. 2272 * System processes also don't have a user stack. 2273 */ 2274 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2275 error = EINVAL; 2276 goto out_locked; 2277 } 2278 2279 /* 2280 * Lock the process down in memory. 2281 */ 2282 /* XXXCDC: how should locking work here? */ 2283 if ((l->l_flag & LW_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2284 error = EFAULT; 2285 goto out_locked; 2286 } 2287 2288 psstr_addr = (vaddr_t)p->p_psstr; 2289 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2290 offsetn = p->p_psnargv; 2291 offsetv = p->p_psargv; 2292 } else { 2293 offsetn = p->p_psnenv; 2294 offsetv = p->p_psenv; 2295 } 2296 vmspace = p->p_vmspace; 2297 vmspace->vm_refcnt++; /* XXX */ 2298 2299 mutex_exit(&proclist_lock); 2300 2301 /* 2302 * Allocate a temporary buffer to hold the arguments. 2303 */ 2304 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2305 2306 /* 2307 * Read in the ps_strings structure. 2308 */ 2309 aiov.iov_base = &pss; 2310 aiov.iov_len = sizeof(pss); 2311 auio.uio_iov = &aiov; 2312 auio.uio_iovcnt = 1; 2313 auio.uio_offset = psstr_addr; 2314 auio.uio_resid = sizeof(pss); 2315 auio.uio_rw = UIO_READ; 2316 UIO_SETUP_SYSSPACE(&auio); 2317 error = uvm_io(&vmspace->vm_map, &auio); 2318 if (error) 2319 goto done; 2320 2321 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2322 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2323 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2324 *oldlenp = sizeof(nargv); 2325 goto done; 2326 } 2327 /* 2328 * Now read the address of the argument vector. 2329 */ 2330 switch (type) { 2331 case KERN_PROC_ARGV: 2332 /* FALLTHROUGH */ 2333 case KERN_PROC_ENV: 2334 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2335 break; 2336 default: 2337 return (EINVAL); 2338 } 2339 2340 #ifdef COMPAT_NETBSD32 2341 if (p->p_flag & PK_32) 2342 len = sizeof(netbsd32_charp) * nargv; 2343 else 2344 #endif 2345 len = sizeof(char *) * nargv; 2346 2347 argv = malloc(len, M_TEMP, M_WAITOK); 2348 2349 aiov.iov_base = argv; 2350 aiov.iov_len = len; 2351 auio.uio_iov = &aiov; 2352 auio.uio_iovcnt = 1; 2353 auio.uio_offset = (off_t)(unsigned long)tmp; 2354 auio.uio_resid = len; 2355 auio.uio_rw = UIO_READ; 2356 UIO_SETUP_SYSSPACE(&auio); 2357 error = uvm_io(&vmspace->vm_map, &auio); 2358 if (error) 2359 goto done; 2360 2361 /* 2362 * Now copy each string. 2363 */ 2364 len = 0; /* bytes written to user buffer */ 2365 for (i = 0; i < nargv; i++) { 2366 int finished = 0; 2367 vaddr_t base; 2368 size_t xlen; 2369 int j; 2370 2371 #ifdef COMPAT_NETBSD32 2372 if (p->p_flag & PK_32) { 2373 netbsd32_charp *argv32; 2374 2375 argv32 = (netbsd32_charp *)argv; 2376 2377 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2378 } else 2379 #endif 2380 base = (vaddr_t)argv[i]; 2381 2382 while (!finished) { 2383 xlen = PAGE_SIZE - (base & PAGE_MASK); 2384 2385 aiov.iov_base = arg; 2386 aiov.iov_len = PAGE_SIZE; 2387 auio.uio_iov = &aiov; 2388 auio.uio_iovcnt = 1; 2389 auio.uio_offset = base; 2390 auio.uio_resid = xlen; 2391 auio.uio_rw = UIO_READ; 2392 UIO_SETUP_SYSSPACE(&auio); 2393 error = uvm_io(&vmspace->vm_map, &auio); 2394 if (error) 2395 goto done; 2396 2397 /* Look for the end of the string */ 2398 for (j = 0; j < xlen; j++) { 2399 if (arg[j] == '\0') { 2400 xlen = j + 1; 2401 finished = 1; 2402 break; 2403 } 2404 } 2405 2406 /* Check for user buffer overflow */ 2407 if (len + xlen > *oldlenp) { 2408 finished = 1; 2409 if (len > *oldlenp) 2410 xlen = 0; 2411 else 2412 xlen = *oldlenp - len; 2413 } 2414 2415 /* Copyout the page */ 2416 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2417 if (error) 2418 goto done; 2419 2420 len += xlen; 2421 base += xlen; 2422 } 2423 } 2424 *oldlenp = len; 2425 2426 done: 2427 if (argv != NULL) 2428 free(argv, M_TEMP); 2429 2430 uvmspace_free(vmspace); 2431 2432 free(arg, M_TEMP); 2433 return error; 2434 2435 out_locked: 2436 mutex_exit(&proclist_lock); 2437 return error; 2438 } 2439 2440 static int 2441 sysctl_security_setidcore(SYSCTLFN_ARGS) 2442 { 2443 int newsize, error; 2444 struct sysctlnode node; 2445 2446 node = *rnode; 2447 node.sysctl_data = &newsize; 2448 newsize = *(int *)rnode->sysctl_data; 2449 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2450 if (error || newp == NULL) 2451 return error; 2452 2453 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2454 0, NULL, NULL, NULL)) 2455 return (EPERM); 2456 2457 *(int *)rnode->sysctl_data = newsize; 2458 2459 return 0; 2460 } 2461 2462 static int 2463 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2464 { 2465 int error; 2466 char *newsetidcorename; 2467 struct sysctlnode node; 2468 2469 newsetidcorename = PNBUF_GET(); 2470 node = *rnode; 2471 node.sysctl_data = newsetidcorename; 2472 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2473 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2474 if (error || newp == NULL) { 2475 goto out; 2476 } 2477 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2478 0, NULL, NULL, NULL)) { 2479 error = EPERM; 2480 goto out; 2481 } 2482 if (strlen(newsetidcorename) == 0) { 2483 error = EINVAL; 2484 goto out; 2485 } 2486 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2487 out: 2488 PNBUF_PUT(newsetidcorename); 2489 return error; 2490 } 2491 2492 /* 2493 * sysctl helper routine for kern.cp_id node. maps cpus to their 2494 * cpuids. 2495 */ 2496 static int 2497 sysctl_kern_cpid(SYSCTLFN_ARGS) 2498 { 2499 struct sysctlnode node = *rnode; 2500 2501 #ifndef MULTIPROCESSOR 2502 uint64_t id; 2503 2504 if (namelen == 1) { 2505 if (name[0] != 0) 2506 return (ENOENT); 2507 /* 2508 * you're allowed to ask for the zero'th processor 2509 */ 2510 name++; 2511 namelen--; 2512 } 2513 node.sysctl_data = &id; 2514 node.sysctl_size = sizeof(id); 2515 id = cpu_number(); 2516 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2517 2518 #else /* MULTIPROCESSOR */ 2519 uint64_t *cp_id = NULL; 2520 int error, n = ncpu; 2521 struct cpu_info *ci; 2522 CPU_INFO_ITERATOR cii; 2523 2524 /* 2525 * here you may either retrieve a single cpu id or the whole 2526 * set. the size you get back when probing depends on what 2527 * you ask for. 2528 */ 2529 switch (namelen) { 2530 case 0: 2531 node.sysctl_size = n * sizeof(uint64_t); 2532 n = -2; /* ALL */ 2533 break; 2534 case 1: 2535 if (name[0] < 0 || name[0] >= n) 2536 return (ENOENT); /* ENOSUCHPROCESSOR */ 2537 node.sysctl_size = sizeof(uint64_t); 2538 n = name[0]; 2539 /* 2540 * adjust these so that sysctl_lookup() will be happy 2541 */ 2542 name++; 2543 namelen--; 2544 break; 2545 default: 2546 return (EINVAL); 2547 } 2548 2549 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2550 if (cp_id == NULL) 2551 return (ENOMEM); 2552 node.sysctl_data = cp_id; 2553 memset(cp_id, 0, node.sysctl_size); 2554 2555 for (CPU_INFO_FOREACH(cii, ci)) { 2556 if (n <= 0) 2557 cp_id[0] = ci->ci_cpuid; 2558 /* 2559 * if a specific processor was requested and we just 2560 * did it, we're done here 2561 */ 2562 if (n == 0) 2563 break; 2564 /* 2565 * if doing "all", skip to next cp_id slot for next processor 2566 */ 2567 if (n == -2) 2568 cp_id++; 2569 /* 2570 * if we're doing a specific processor, we're one 2571 * processor closer 2572 */ 2573 if (n > 0) 2574 n--; 2575 } 2576 2577 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2578 free(node.sysctl_data, M_TEMP); 2579 return (error); 2580 2581 #endif /* MULTIPROCESSOR */ 2582 } 2583 2584 /* 2585 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2586 * calculate on the fly taking into account integer overflow and the 2587 * current wired count. 2588 */ 2589 static int 2590 sysctl_hw_usermem(SYSCTLFN_ARGS) 2591 { 2592 u_int ui; 2593 u_quad_t uq; 2594 struct sysctlnode node; 2595 2596 node = *rnode; 2597 switch (rnode->sysctl_num) { 2598 case HW_USERMEM: 2599 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2600 ui = UINT_MAX; 2601 else 2602 ui *= PAGE_SIZE; 2603 node.sysctl_data = &ui; 2604 break; 2605 case HW_USERMEM64: 2606 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2607 node.sysctl_data = &uq; 2608 break; 2609 default: 2610 return (EINVAL); 2611 } 2612 2613 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2614 } 2615 2616 /* 2617 * sysctl helper routine for kern.cnmagic node. pulls the old value 2618 * out, encoded, and stuffs the new value in for decoding. 2619 */ 2620 static int 2621 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2622 { 2623 char magic[CNS_LEN]; 2624 int error; 2625 struct sysctlnode node; 2626 2627 if (oldp) 2628 cn_get_magic(magic, CNS_LEN); 2629 node = *rnode; 2630 node.sysctl_data = &magic[0]; 2631 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2632 if (error || newp == NULL) 2633 return (error); 2634 2635 return (cn_set_magic(magic)); 2636 } 2637 2638 static int 2639 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2640 { 2641 struct sysctlnode node; 2642 2643 node = *rnode; 2644 node.sysctl_data = &ncpu; 2645 2646 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2647 } 2648 2649 2650 /* 2651 * ******************************************************************** 2652 * section 3: public helper routines that are used for more than one 2653 * node 2654 * ******************************************************************** 2655 */ 2656 2657 /* 2658 * sysctl helper routine for the kern.root_device node and some ports' 2659 * machdep.root_device nodes. 2660 */ 2661 int 2662 sysctl_root_device(SYSCTLFN_ARGS) 2663 { 2664 struct sysctlnode node; 2665 2666 node = *rnode; 2667 node.sysctl_data = root_device->dv_xname; 2668 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2669 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2670 } 2671 2672 /* 2673 * sysctl helper routine for kern.consdev, dependent on the current 2674 * state of the console. also used for machdep.console_device on some 2675 * ports. 2676 */ 2677 int 2678 sysctl_consdev(SYSCTLFN_ARGS) 2679 { 2680 dev_t consdev; 2681 struct sysctlnode node; 2682 2683 if (cn_tab != NULL) 2684 consdev = cn_tab->cn_dev; 2685 else 2686 consdev = NODEV; 2687 node = *rnode; 2688 node.sysctl_data = &consdev; 2689 node.sysctl_size = sizeof(consdev); 2690 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2691 } 2692 2693 /* 2694 * ******************************************************************** 2695 * section 4: support for some helpers 2696 * ******************************************************************** 2697 */ 2698 2699 /* 2700 * Fill in a kinfo_proc2 structure for the specified process. 2701 */ 2702 static void 2703 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2704 { 2705 struct tty *tp; 2706 struct lwp *l, *l2; 2707 struct timeval ut, st, rt; 2708 sigset_t ss1, ss2; 2709 2710 memset(ki, 0, sizeof(*ki)); 2711 2712 ki->p_paddr = PTRTOUINT64(p); 2713 ki->p_fd = PTRTOUINT64(p->p_fd); 2714 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2715 ki->p_stats = PTRTOUINT64(p->p_stats); 2716 ki->p_limit = PTRTOUINT64(p->p_limit); 2717 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2718 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2719 ki->p_sess = PTRTOUINT64(p->p_session); 2720 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2721 ki->p_ru = PTRTOUINT64(p->p_ru); 2722 2723 ki->p_eflag = 0; 2724 ki->p_exitsig = p->p_exitsig; 2725 2726 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2727 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2728 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2729 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2730 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2731 2732 ki->p_pid = p->p_pid; 2733 if (p->p_pptr) 2734 ki->p_ppid = p->p_pptr->p_pid; 2735 else 2736 ki->p_ppid = 0; 2737 ki->p_sid = p->p_session->s_sid; 2738 ki->p__pgid = p->p_pgrp->pg_id; 2739 2740 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2741 2742 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2743 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2744 ki->p_gid = kauth_cred_getegid(p->p_cred); 2745 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2746 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2747 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2748 2749 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2750 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2751 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0]))); 2752 2753 ki->p_jobc = p->p_pgrp->pg_jobc; 2754 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2755 ki->p_tdev = tp->t_dev; 2756 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2757 ki->p_tsess = PTRTOUINT64(tp->t_session); 2758 } else { 2759 ki->p_tdev = NODEV; 2760 } 2761 2762 ki->p_estcpu = p->p_estcpu; 2763 ki->p_cpticks = p->p_cpticks; 2764 ki->p_pctcpu = p->p_pctcpu; 2765 2766 ki->p_uticks = p->p_uticks; 2767 ki->p_sticks = p->p_sticks; 2768 ki->p_iticks = p->p_iticks; 2769 2770 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2771 ki->p_traceflag = p->p_traceflag; 2772 2773 mutex_enter(&p->p_smutex); 2774 2775 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2776 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2777 2778 ss1 = p->p_sigpend.sp_set; 2779 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2780 /* This is hardly correct, but... */ 2781 sigplusset(&l->l_sigpend.sp_set, &ss1); 2782 sigplusset(&l->l_sigmask, &ss2); 2783 } 2784 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2785 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2786 2787 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2788 ki->p_realstat = p->p_stat; 2789 ki->p_nice = p->p_nice; 2790 2791 ki->p_xstat = p->p_xstat; 2792 ki->p_acflag = p->p_acflag; 2793 2794 strncpy(ki->p_comm, p->p_comm, 2795 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2796 2797 strncpy(ki->p_login, p->p_session->s_login, 2798 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2799 2800 ki->p_nlwps = p->p_nlwps; 2801 ki->p_realflag = ki->p_flag; 2802 2803 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2804 ki->p_vm_rssize = 0; 2805 ki->p_vm_tsize = 0; 2806 ki->p_vm_dsize = 0; 2807 ki->p_vm_ssize = 0; 2808 ki->p_nrlwps = 0; 2809 l = NULL; 2810 } else { 2811 struct vmspace *vm = p->p_vmspace; 2812 int tmp; 2813 2814 ki->p_vm_rssize = vm_resident_count(vm); 2815 ki->p_vm_tsize = vm->vm_tsize; 2816 ki->p_vm_dsize = vm->vm_dsize; 2817 ki->p_vm_ssize = vm->vm_ssize; 2818 2819 /* Pick a "representative" LWP */ 2820 l = proc_representative_lwp(p, &tmp, 1); 2821 lwp_lock(l); 2822 ki->p_nrlwps = tmp; 2823 ki->p_forw = PTRTOUINT64(l->l_forw); 2824 ki->p_back = PTRTOUINT64(l->l_back); 2825 ki->p_addr = PTRTOUINT64(l->l_addr); 2826 ki->p_stat = l->l_stat; 2827 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2828 ki->p_swtime = l->l_swtime; 2829 ki->p_slptime = l->l_slptime; 2830 if (l->l_stat == LSONPROC) 2831 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2832 else 2833 ki->p_schedflags = 0; 2834 ki->p_holdcnt = l->l_holdcnt; 2835 ki->p_priority = l->l_priority; 2836 ki->p_usrpri = l->l_usrpri; 2837 if (l->l_wmesg) 2838 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2839 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2840 lwp_unlock(l); 2841 } 2842 if (p->p_session->s_ttyvp) 2843 ki->p_eflag |= EPROC_CTTY; 2844 if (SESS_LEADER(p)) 2845 ki->p_eflag |= EPROC_SLEADER; 2846 2847 /* XXX Is this double check necessary? */ 2848 if (P_ZOMBIE(p)) { 2849 ki->p_uvalid = 0; 2850 ki->p_rtime_sec = 0; 2851 ki->p_rtime_usec = 0; 2852 } else { 2853 ki->p_uvalid = 1; 2854 2855 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2856 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2857 2858 calcru(p, &ut, &st, NULL, &rt); 2859 ki->p_rtime_sec = rt.tv_sec; 2860 ki->p_rtime_usec = rt.tv_usec; 2861 ki->p_uutime_sec = ut.tv_sec; 2862 ki->p_uutime_usec = ut.tv_usec; 2863 ki->p_ustime_sec = st.tv_sec; 2864 ki->p_ustime_usec = st.tv_usec; 2865 2866 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2867 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2868 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2869 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2870 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2871 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2872 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2873 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2874 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2875 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2876 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2877 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2878 2879 ki->p_uru_nvcsw = 0; 2880 ki->p_uru_nivcsw = 0; 2881 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 2882 ki->p_uru_nvcsw += l->l_nvcsw; 2883 ki->p_uru_nivcsw += l->l_nivcsw; 2884 } 2885 2886 timeradd(&p->p_stats->p_cru.ru_utime, 2887 &p->p_stats->p_cru.ru_stime, &ut); 2888 ki->p_uctime_sec = ut.tv_sec; 2889 ki->p_uctime_usec = ut.tv_usec; 2890 } 2891 #ifdef MULTIPROCESSOR 2892 if (l != NULL) 2893 ki->p_cpuid = l->l_cpu->ci_cpuid; 2894 else 2895 #endif 2896 ki->p_cpuid = KI_NOCPU; 2897 2898 mutex_exit(&p->p_smutex); 2899 } 2900 2901 /* 2902 * Fill in a kinfo_lwp structure for the specified lwp. 2903 */ 2904 static void 2905 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2906 { 2907 2908 kl->l_forw = PTRTOUINT64(l->l_forw); 2909 kl->l_back = PTRTOUINT64(l->l_back); 2910 kl->l_laddr = PTRTOUINT64(l); 2911 kl->l_addr = PTRTOUINT64(l->l_addr); 2912 kl->l_stat = l->l_stat; 2913 kl->l_lid = l->l_lid; 2914 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 2915 2916 kl->l_swtime = l->l_swtime; 2917 kl->l_slptime = l->l_slptime; 2918 if (l->l_stat == LSONPROC) 2919 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2920 else 2921 kl->l_schedflags = 0; 2922 kl->l_holdcnt = l->l_holdcnt; 2923 kl->l_priority = l->l_priority; 2924 kl->l_usrpri = l->l_usrpri; 2925 if (l->l_wmesg) 2926 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2927 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2928 #ifdef MULTIPROCESSOR 2929 kl->l_cpuid = l->l_cpu->ci_cpuid; 2930 #else 2931 kl->l_cpuid = KI_NOCPU; 2932 #endif 2933 kl->l_rtime_sec = l->l_rtime.tv_sec; 2934 kl->l_rtime_usec = l->l_rtime.tv_usec; 2935 } 2936 2937 /* 2938 * Fill in an eproc structure for the specified process. 2939 */ 2940 void 2941 fill_eproc(struct proc *p, struct eproc *ep) 2942 { 2943 struct tty *tp; 2944 struct lwp *l; 2945 2946 ep->e_paddr = p; 2947 ep->e_sess = p->p_session; 2948 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 2949 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 2950 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2951 ep->e_vm.vm_rssize = 0; 2952 ep->e_vm.vm_tsize = 0; 2953 ep->e_vm.vm_dsize = 0; 2954 ep->e_vm.vm_ssize = 0; 2955 /* ep->e_vm.vm_pmap = XXX; */ 2956 } else { 2957 struct vmspace *vm = p->p_vmspace; 2958 2959 ep->e_vm.vm_rssize = vm_resident_count(vm); 2960 ep->e_vm.vm_tsize = vm->vm_tsize; 2961 ep->e_vm.vm_dsize = vm->vm_dsize; 2962 ep->e_vm.vm_ssize = vm->vm_ssize; 2963 2964 /* Pick a "representative" LWP */ 2965 mutex_enter(&p->p_smutex); 2966 l = proc_representative_lwp(p, NULL, 1); 2967 lwp_lock(l); 2968 if (l->l_wmesg) 2969 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2970 lwp_unlock(l); 2971 mutex_exit(&p->p_smutex); 2972 } 2973 if (p->p_pptr) 2974 ep->e_ppid = p->p_pptr->p_pid; 2975 else 2976 ep->e_ppid = 0; 2977 ep->e_pgid = p->p_pgrp->pg_id; 2978 ep->e_sid = ep->e_sess->s_sid; 2979 ep->e_jobc = p->p_pgrp->pg_jobc; 2980 if ((p->p_lflag & PL_CONTROLT) && 2981 (tp = ep->e_sess->s_ttyp)) { 2982 ep->e_tdev = tp->t_dev; 2983 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2984 ep->e_tsess = tp->t_session; 2985 } else 2986 ep->e_tdev = NODEV; 2987 2988 ep->e_xsize = ep->e_xrssize = 0; 2989 ep->e_xccount = ep->e_xswrss = 0; 2990 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2991 if (SESS_LEADER(p)) 2992 ep->e_flag |= EPROC_SLEADER; 2993 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2994 } 2995 2996 u_int 2997 sysctl_map_flags(const u_int *map, u_int word) 2998 { 2999 u_int rv; 3000 3001 for (rv = 0; *map != 0; map += 2) 3002 if ((word & map[0]) != 0) 3003 rv |= map[1]; 3004 3005 return rv; 3006 } 3007
Indexes created Wed Oct 01 15:09:59 GMT 2025