init_sysctl.c revision 1.81.4.10
1 /* $NetBSD: init_sysctl.c,v 1.81.4.10 2007/02/04 14:42:36 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Brown. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: init_sysctl.c,v 1.81.4.10 2007/02/04 14:42:36 ad Exp $"); 41 42 #include "opt_sysv.h" 43 #include "opt_multiprocessor.h" 44 #include "opt_posix.h" 45 #include "opt_compat_netbsd32.h" 46 #include "opt_ktrace.h" 47 #include "pty.h" 48 #include "rnd.h" 49 50 #include <sys/types.h> 51 #include <sys/param.h> 52 #include <sys/sysctl.h> 53 #include <sys/errno.h> 54 #include <sys/systm.h> 55 #include <sys/kernel.h> 56 #include <sys/unistd.h> 57 #include <sys/disklabel.h> 58 #include <sys/rnd.h> 59 #include <sys/vnode.h> 60 #include <sys/mount.h> 61 #include <sys/namei.h> 62 #include <sys/msgbuf.h> 63 #include <dev/cons.h> 64 #include <sys/socketvar.h> 65 #include <sys/file.h> 66 #include <sys/filedesc.h> 67 #include <sys/tty.h> 68 #include <sys/malloc.h> 69 #include <sys/resource.h> 70 #include <sys/resourcevar.h> 71 #include <sys/exec.h> 72 #include <sys/conf.h> 73 #include <sys/device.h> 74 #include <sys/stat.h> 75 #include <sys/kauth.h> 76 #ifdef KTRACE 77 #include <sys/ktrace.h> 78 #endif 79 80 #ifdef COMPAT_NETBSD32 81 #include <compat/netbsd32/netbsd32.h> 82 #endif 83 84 #include <machine/cpu.h> 85 86 /* XXX this should not be here */ 87 int security_setidcore_dump; 88 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 89 uid_t security_setidcore_owner = 0; 90 gid_t security_setidcore_group = 0; 91 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 92 93 static const u_int sysctl_flagmap[] = { 94 P_ADVLOCK, KP_ADVLOCK, 95 P_EXEC, KP_EXEC, 96 P_NOCLDWAIT, KP_NOCLDWAIT, 97 P_32, KP_32, 98 P_CLDSIGIGN, KP_CLDSIGIGN, 99 P_PAXMPROTECT, KP_PAXMPROTECT, 100 P_PAXNOMPROTECT, KP_PAXNOMPROTECT, 101 P_SYSTRACE, KP_SYSTRACE, 102 P_SUGID, KP_SUGID, 103 0 104 }; 105 106 static const u_int sysctl_sflagmap[] = { 107 PS_NOCLDSTOP, KP_NOCLDSTOP, 108 PS_PPWAIT, KP_PPWAIT, 109 PS_WEXIT, KP_WEXIT, 110 PS_STOPFORK, KP_STOPFORK, 111 PS_STOPEXEC, KP_STOPEXEC, 112 PS_STOPEXIT, KP_STOPEXIT, 113 0 114 }; 115 116 static const u_int sysctl_slflagmap[] = { 117 PSL_TRACED, KP_TRACED, 118 PSL_FSTRACE, KP_FSTRACE, 119 PSL_CHTRACED, KP_CHTRACED, 120 PSL_SYSCALL, KP_SYSCALL, 121 0 122 }; 123 124 static const u_int sysctl_lflagmap[] = { 125 PL_CONTROLT, KP_CONTROLT, 126 0 127 }; 128 129 static const u_int sysctl_stflagmap[] = { 130 PST_PROFIL, KP_PROFIL, 131 0 132 133 }; 134 135 static const u_int sysctl_lwpflagmap[] = { 136 L_INMEM, KP_INMEM, 137 L_SELECT, KP_SELECT, 138 L_SINTR, KP_SINTR, 139 L_SYSTEM, KP_SYSTEM, 140 0 141 }; 142 143 static const u_int sysctl_lwpprflagmap[] = { 144 LPR_DETACHED, KL_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 #ifndef MULTIPROCESSOR 181 #define sysctl_ncpus() (1) 182 #else /* MULTIPROCESSOR */ 183 #ifndef CPU_INFO_FOREACH 184 #define CPU_INFO_ITERATOR int 185 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 186 #endif 187 static int 188 sysctl_ncpus(void) 189 { 190 struct cpu_info *ci; 191 CPU_INFO_ITERATOR cii; 192 193 int ncpus = 0; 194 for (CPU_INFO_FOREACH(cii, ci)) 195 ncpus++; 196 return (ncpus); 197 } 198 #endif /* MULTIPROCESSOR */ 199 200 #ifdef DIAGNOSTIC 201 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 202 #endif 203 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 204 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 205 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 206 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 207 static int sysctl_setlen(SYSCTLFN_PROTO); 208 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 209 static int sysctl_kern_file(SYSCTLFN_PROTO); 210 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 211 static int sysctl_msgbuf(SYSCTLFN_PROTO); 212 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 213 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 214 #if NPTY > 0 215 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 216 #endif /* NPTY > 0 */ 217 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 218 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 219 static int sysctl_kern_arnd(SYSCTLFN_PROTO); 220 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 221 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 222 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 223 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 224 static int sysctl_kern_file2(SYSCTLFN_PROTO); 225 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 226 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 227 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 228 static int sysctl_doeproc(SYSCTLFN_PROTO); 229 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 230 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 231 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 232 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 233 234 static u_int sysctl_map_flags(const u_int *, u_int); 235 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 236 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 237 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 238 int); 239 240 /* 241 * ******************************************************************** 242 * section 1: setup routines 243 * ******************************************************************** 244 * these functions are stuffed into a link set for sysctl setup 245 * functions. they're never called or referenced from anywhere else. 246 * ******************************************************************** 247 */ 248 249 /* 250 * sets up the base nodes... 251 */ 252 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 253 { 254 255 sysctl_createv(clog, 0, NULL, NULL, 256 CTLFLAG_PERMANENT, 257 CTLTYPE_NODE, "kern", 258 SYSCTL_DESCR("High kernel"), 259 NULL, 0, NULL, 0, 260 CTL_KERN, CTL_EOL); 261 sysctl_createv(clog, 0, NULL, NULL, 262 CTLFLAG_PERMANENT, 263 CTLTYPE_NODE, "vm", 264 SYSCTL_DESCR("Virtual memory"), 265 NULL, 0, NULL, 0, 266 CTL_VM, CTL_EOL); 267 sysctl_createv(clog, 0, NULL, NULL, 268 CTLFLAG_PERMANENT, 269 CTLTYPE_NODE, "vfs", 270 SYSCTL_DESCR("Filesystem"), 271 NULL, 0, NULL, 0, 272 CTL_VFS, CTL_EOL); 273 sysctl_createv(clog, 0, NULL, NULL, 274 CTLFLAG_PERMANENT, 275 CTLTYPE_NODE, "net", 276 SYSCTL_DESCR("Networking"), 277 NULL, 0, NULL, 0, 278 CTL_NET, CTL_EOL); 279 sysctl_createv(clog, 0, NULL, NULL, 280 CTLFLAG_PERMANENT, 281 CTLTYPE_NODE, "debug", 282 SYSCTL_DESCR("Debugging"), 283 NULL, 0, NULL, 0, 284 CTL_DEBUG, CTL_EOL); 285 sysctl_createv(clog, 0, NULL, NULL, 286 CTLFLAG_PERMANENT, 287 CTLTYPE_NODE, "hw", 288 SYSCTL_DESCR("Generic CPU, I/O"), 289 NULL, 0, NULL, 0, 290 CTL_HW, CTL_EOL); 291 sysctl_createv(clog, 0, NULL, NULL, 292 CTLFLAG_PERMANENT, 293 CTLTYPE_NODE, "machdep", 294 SYSCTL_DESCR("Machine dependent"), 295 NULL, 0, NULL, 0, 296 CTL_MACHDEP, CTL_EOL); 297 /* 298 * this node is inserted so that the sysctl nodes in libc can 299 * operate. 300 */ 301 sysctl_createv(clog, 0, NULL, NULL, 302 CTLFLAG_PERMANENT, 303 CTLTYPE_NODE, "user", 304 SYSCTL_DESCR("User-level"), 305 NULL, 0, NULL, 0, 306 CTL_USER, CTL_EOL); 307 sysctl_createv(clog, 0, NULL, NULL, 308 CTLFLAG_PERMANENT, 309 CTLTYPE_NODE, "ddb", 310 SYSCTL_DESCR("In-kernel debugger"), 311 NULL, 0, NULL, 0, 312 CTL_DDB, CTL_EOL); 313 sysctl_createv(clog, 0, NULL, NULL, 314 CTLFLAG_PERMANENT, 315 CTLTYPE_NODE, "proc", 316 SYSCTL_DESCR("Per-process"), 317 NULL, 0, NULL, 0, 318 CTL_PROC, CTL_EOL); 319 sysctl_createv(clog, 0, NULL, NULL, 320 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 321 CTLTYPE_NODE, "vendor", 322 SYSCTL_DESCR("Vendor specific"), 323 NULL, 0, NULL, 0, 324 CTL_VENDOR, CTL_EOL); 325 sysctl_createv(clog, 0, NULL, NULL, 326 CTLFLAG_PERMANENT, 327 CTLTYPE_NODE, "emul", 328 SYSCTL_DESCR("Emulation settings"), 329 NULL, 0, NULL, 0, 330 CTL_EMUL, CTL_EOL); 331 sysctl_createv(clog, 0, NULL, NULL, 332 CTLFLAG_PERMANENT, 333 CTLTYPE_NODE, "security", 334 SYSCTL_DESCR("Security"), 335 NULL, 0, NULL, 0, 336 CTL_SECURITY, CTL_EOL); 337 } 338 339 /* 340 * this setup routine is a replacement for kern_sysctl() 341 */ 342 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 343 { 344 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 345 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 346 extern int dumponpanic; /* defined in kern/subr_prf.c */ 347 const struct sysctlnode *rnode; 348 349 sysctl_createv(clog, 0, NULL, NULL, 350 CTLFLAG_PERMANENT, 351 CTLTYPE_NODE, "kern", NULL, 352 NULL, 0, NULL, 0, 353 CTL_KERN, CTL_EOL); 354 355 sysctl_createv(clog, 0, NULL, NULL, 356 CTLFLAG_PERMANENT, 357 CTLTYPE_STRING, "ostype", 358 SYSCTL_DESCR("Operating system type"), 359 NULL, 0, &ostype, 0, 360 CTL_KERN, KERN_OSTYPE, CTL_EOL); 361 sysctl_createv(clog, 0, NULL, NULL, 362 CTLFLAG_PERMANENT, 363 CTLTYPE_STRING, "osrelease", 364 SYSCTL_DESCR("Operating system release"), 365 NULL, 0, &osrelease, 0, 366 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 367 sysctl_createv(clog, 0, NULL, NULL, 368 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 369 CTLTYPE_INT, "osrevision", 370 SYSCTL_DESCR("Operating system revision"), 371 NULL, __NetBSD_Version__, NULL, 0, 372 CTL_KERN, KERN_OSREV, CTL_EOL); 373 sysctl_createv(clog, 0, NULL, NULL, 374 CTLFLAG_PERMANENT, 375 CTLTYPE_STRING, "version", 376 SYSCTL_DESCR("Kernel version"), 377 NULL, 0, &version, 0, 378 CTL_KERN, KERN_VERSION, CTL_EOL); 379 sysctl_createv(clog, 0, NULL, NULL, 380 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 381 CTLTYPE_INT, "maxvnodes", 382 SYSCTL_DESCR("Maximum number of vnodes"), 383 sysctl_kern_maxvnodes, 0, NULL, 0, 384 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 385 sysctl_createv(clog, 0, NULL, NULL, 386 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 387 CTLTYPE_INT, "maxproc", 388 SYSCTL_DESCR("Maximum number of simultaneous processes"), 389 sysctl_kern_maxproc, 0, NULL, 0, 390 CTL_KERN, KERN_MAXPROC, CTL_EOL); 391 sysctl_createv(clog, 0, NULL, NULL, 392 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 393 CTLTYPE_INT, "maxfiles", 394 SYSCTL_DESCR("Maximum number of open files"), 395 NULL, 0, &maxfiles, 0, 396 CTL_KERN, KERN_MAXFILES, CTL_EOL); 397 sysctl_createv(clog, 0, NULL, NULL, 398 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 399 CTLTYPE_INT, "argmax", 400 SYSCTL_DESCR("Maximum number of bytes of arguments to " 401 "execve(2)"), 402 NULL, ARG_MAX, NULL, 0, 403 CTL_KERN, KERN_ARGMAX, CTL_EOL); 404 sysctl_createv(clog, 0, NULL, NULL, 405 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 406 CTLTYPE_STRING, "hostname", 407 SYSCTL_DESCR("System hostname"), 408 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 409 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 410 sysctl_createv(clog, 0, NULL, NULL, 411 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 412 CTLTYPE_INT, "hostid", 413 SYSCTL_DESCR("System host ID number"), 414 sysctl_kern_hostid, 0, NULL, 0, 415 CTL_KERN, KERN_HOSTID, CTL_EOL); 416 sysctl_createv(clog, 0, NULL, NULL, 417 CTLFLAG_PERMANENT, 418 CTLTYPE_STRUCT, "clockrate", 419 SYSCTL_DESCR("Kernel clock rates"), 420 sysctl_kern_clockrate, 0, NULL, 421 sizeof(struct clockinfo), 422 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 423 sysctl_createv(clog, 0, NULL, NULL, 424 CTLFLAG_PERMANENT, 425 CTLTYPE_INT, "hardclock_ticks", 426 SYSCTL_DESCR("Number of hardclock ticks"), 427 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 428 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 429 sysctl_createv(clog, 0, NULL, NULL, 430 CTLFLAG_PERMANENT, 431 CTLTYPE_STRUCT, "vnode", 432 SYSCTL_DESCR("System vnode table"), 433 sysctl_kern_vnode, 0, NULL, 0, 434 CTL_KERN, KERN_VNODE, CTL_EOL); 435 sysctl_createv(clog, 0, NULL, NULL, 436 CTLFLAG_PERMANENT, 437 CTLTYPE_STRUCT, "file", 438 SYSCTL_DESCR("System open file table"), 439 sysctl_kern_file, 0, NULL, 0, 440 CTL_KERN, KERN_FILE, CTL_EOL); 441 #ifndef GPROF 442 sysctl_createv(clog, 0, NULL, NULL, 443 CTLFLAG_PERMANENT, 444 CTLTYPE_NODE, "profiling", 445 SYSCTL_DESCR("Profiling information (not available)"), 446 sysctl_notavail, 0, NULL, 0, 447 CTL_KERN, KERN_PROF, CTL_EOL); 448 #endif 449 sysctl_createv(clog, 0, NULL, NULL, 450 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 451 CTLTYPE_INT, "posix1version", 452 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 453 "with which the operating system attempts " 454 "to comply"), 455 NULL, _POSIX_VERSION, NULL, 0, 456 CTL_KERN, KERN_POSIX1, CTL_EOL); 457 sysctl_createv(clog, 0, NULL, NULL, 458 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 459 CTLTYPE_INT, "ngroups", 460 SYSCTL_DESCR("Maximum number of supplemental groups"), 461 NULL, NGROUPS_MAX, NULL, 0, 462 CTL_KERN, KERN_NGROUPS, CTL_EOL); 463 sysctl_createv(clog, 0, NULL, NULL, 464 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 465 CTLTYPE_INT, "job_control", 466 SYSCTL_DESCR("Whether job control is available"), 467 NULL, 1, NULL, 0, 468 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 469 sysctl_createv(clog, 0, NULL, NULL, 470 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 471 CTLTYPE_INT, "saved_ids", 472 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 473 "available"), NULL, 474 #ifdef _POSIX_SAVED_IDS 475 1, 476 #else /* _POSIX_SAVED_IDS */ 477 0, 478 #endif /* _POSIX_SAVED_IDS */ 479 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 480 sysctl_createv(clog, 0, NULL, NULL, 481 CTLFLAG_PERMANENT, 482 CTLTYPE_STRUCT, "boottime", 483 SYSCTL_DESCR("System boot time"), 484 NULL, 0, &boottime, sizeof(boottime), 485 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 486 sysctl_createv(clog, 0, NULL, NULL, 487 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 488 CTLTYPE_STRING, "domainname", 489 SYSCTL_DESCR("YP domain name"), 490 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 491 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 492 sysctl_createv(clog, 0, NULL, NULL, 493 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 494 CTLTYPE_INT, "maxpartitions", 495 SYSCTL_DESCR("Maximum number of partitions allowed per " 496 "disk"), 497 NULL, MAXPARTITIONS, NULL, 0, 498 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 499 sysctl_createv(clog, 0, NULL, NULL, 500 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 501 CTLTYPE_INT, "rawpartition", 502 SYSCTL_DESCR("Raw partition of a disk"), 503 NULL, RAW_PART, NULL, 0, 504 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 505 sysctl_createv(clog, 0, NULL, NULL, 506 CTLFLAG_PERMANENT, 507 CTLTYPE_STRUCT, "timex", NULL, 508 sysctl_notavail, 0, NULL, 0, 509 CTL_KERN, KERN_TIMEX, CTL_EOL); 510 sysctl_createv(clog, 0, NULL, NULL, 511 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 512 CTLTYPE_INT, "autonicetime", 513 SYSCTL_DESCR("CPU clock seconds before non-root " 514 "process priority is lowered"), 515 sysctl_kern_autonice, 0, &autonicetime, 0, 516 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 517 sysctl_createv(clog, 0, NULL, NULL, 518 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 519 CTLTYPE_INT, "autoniceval", 520 SYSCTL_DESCR("Automatic reniced non-root process " 521 "priority"), 522 sysctl_kern_autonice, 0, &autoniceval, 0, 523 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 524 sysctl_createv(clog, 0, NULL, NULL, 525 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 526 CTLTYPE_INT, "rtc_offset", 527 SYSCTL_DESCR("Offset of real time clock from UTC in " 528 "minutes"), 529 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 530 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 531 sysctl_createv(clog, 0, NULL, NULL, 532 CTLFLAG_PERMANENT, 533 CTLTYPE_STRING, "root_device", 534 SYSCTL_DESCR("Name of the root device"), 535 sysctl_root_device, 0, NULL, 0, 536 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 537 sysctl_createv(clog, 0, NULL, NULL, 538 CTLFLAG_PERMANENT, 539 CTLTYPE_INT, "msgbufsize", 540 SYSCTL_DESCR("Size of the kernel message buffer"), 541 sysctl_msgbuf, 0, NULL, 0, 542 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 543 sysctl_createv(clog, 0, NULL, NULL, 544 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 545 CTLTYPE_INT, "fsync", 546 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 547 "Synchronization Option is available on " 548 "this system"), 549 NULL, 1, NULL, 0, 550 CTL_KERN, KERN_FSYNC, CTL_EOL); 551 sysctl_createv(clog, 0, NULL, NULL, 552 CTLFLAG_PERMANENT, 553 CTLTYPE_NODE, "ipc", 554 SYSCTL_DESCR("SysV IPC options"), 555 NULL, 0, NULL, 0, 556 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 557 sysctl_createv(clog, 0, NULL, NULL, 558 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 559 CTLTYPE_INT, "sysvmsg", 560 SYSCTL_DESCR("System V style message support available"), 561 NULL, 562 #ifdef SYSVMSG 563 1, 564 #else /* SYSVMSG */ 565 0, 566 #endif /* SYSVMSG */ 567 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 568 sysctl_createv(clog, 0, NULL, NULL, 569 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 570 CTLTYPE_INT, "sysvsem", 571 SYSCTL_DESCR("System V style semaphore support " 572 "available"), NULL, 573 #ifdef SYSVSEM 574 1, 575 #else /* SYSVSEM */ 576 0, 577 #endif /* SYSVSEM */ 578 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 579 sysctl_createv(clog, 0, NULL, NULL, 580 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 581 CTLTYPE_INT, "sysvshm", 582 SYSCTL_DESCR("System V style shared memory support " 583 "available"), NULL, 584 #ifdef SYSVSHM 585 1, 586 #else /* SYSVSHM */ 587 0, 588 #endif /* SYSVSHM */ 589 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 590 sysctl_createv(clog, 0, NULL, NULL, 591 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 592 CTLTYPE_INT, "synchronized_io", 593 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 594 "I/O Option is available on this system"), 595 NULL, 1, NULL, 0, 596 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 597 sysctl_createv(clog, 0, NULL, NULL, 598 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 599 CTLTYPE_INT, "iov_max", 600 SYSCTL_DESCR("Maximum number of iovec structures per " 601 "process"), 602 NULL, IOV_MAX, NULL, 0, 603 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 604 sysctl_createv(clog, 0, NULL, NULL, 605 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 606 CTLTYPE_INT, "mapped_files", 607 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 608 "Files Option is available on this system"), 609 NULL, 1, NULL, 0, 610 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 611 sysctl_createv(clog, 0, NULL, NULL, 612 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 613 CTLTYPE_INT, "memlock", 614 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 615 "Locking Option is available on this " 616 "system"), 617 NULL, 1, NULL, 0, 618 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 619 sysctl_createv(clog, 0, NULL, NULL, 620 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 621 CTLTYPE_INT, "memlock_range", 622 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 623 "Locking Option is available on this " 624 "system"), 625 NULL, 1, NULL, 0, 626 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 627 sysctl_createv(clog, 0, NULL, NULL, 628 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 629 CTLTYPE_INT, "memory_protection", 630 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 631 "Protection Option is available on this " 632 "system"), 633 NULL, 1, NULL, 0, 634 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 635 sysctl_createv(clog, 0, NULL, NULL, 636 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 637 CTLTYPE_INT, "login_name_max", 638 SYSCTL_DESCR("Maximum login name length"), 639 NULL, LOGIN_NAME_MAX, NULL, 0, 640 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 641 sysctl_createv(clog, 0, NULL, NULL, 642 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 643 CTLTYPE_STRING, "defcorename", 644 SYSCTL_DESCR("Default core file name"), 645 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 646 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 647 sysctl_createv(clog, 0, NULL, NULL, 648 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 649 CTLTYPE_INT, "logsigexit", 650 SYSCTL_DESCR("Log process exit when caused by signals"), 651 NULL, 0, &kern_logsigexit, 0, 652 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 653 sysctl_createv(clog, 0, NULL, NULL, 654 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 655 CTLTYPE_INT, "fscale", 656 SYSCTL_DESCR("Kernel fixed-point scale factor"), 657 NULL, FSCALE, NULL, 0, 658 CTL_KERN, KERN_FSCALE, CTL_EOL); 659 sysctl_createv(clog, 0, NULL, NULL, 660 CTLFLAG_PERMANENT, 661 CTLTYPE_INT, "ccpu", 662 SYSCTL_DESCR("Scheduler exponential decay value"), 663 NULL, 0, &ccpu, 0, 664 CTL_KERN, KERN_CCPU, CTL_EOL); 665 sysctl_createv(clog, 0, NULL, NULL, 666 CTLFLAG_PERMANENT, 667 CTLTYPE_STRUCT, "cp_time", 668 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 669 sysctl_kern_cptime, 0, NULL, 0, 670 CTL_KERN, KERN_CP_TIME, CTL_EOL); 671 sysctl_createv(clog, 0, NULL, NULL, 672 CTLFLAG_PERMANENT, 673 CTLTYPE_INT, "msgbuf", 674 SYSCTL_DESCR("Kernel message buffer"), 675 sysctl_msgbuf, 0, NULL, 0, 676 CTL_KERN, KERN_MSGBUF, CTL_EOL); 677 sysctl_createv(clog, 0, NULL, NULL, 678 CTLFLAG_PERMANENT, 679 CTLTYPE_STRUCT, "consdev", 680 SYSCTL_DESCR("Console device"), 681 sysctl_consdev, 0, NULL, sizeof(dev_t), 682 CTL_KERN, KERN_CONSDEV, CTL_EOL); 683 #if NPTY > 0 684 sysctl_createv(clog, 0, NULL, NULL, 685 CTLFLAG_PERMANENT, 686 CTLTYPE_INT, "maxptys", 687 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 688 sysctl_kern_maxptys, 0, NULL, 0, 689 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 690 #endif /* NPTY > 0 */ 691 sysctl_createv(clog, 0, NULL, NULL, 692 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 693 CTLTYPE_INT, "maxphys", 694 SYSCTL_DESCR("Maximum raw I/O transfer size"), 695 NULL, MAXPHYS, NULL, 0, 696 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 697 sysctl_createv(clog, 0, NULL, NULL, 698 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 699 CTLTYPE_INT, "sbmax", 700 SYSCTL_DESCR("Maximum socket buffer size"), 701 sysctl_kern_sbmax, 0, NULL, 0, 702 CTL_KERN, KERN_SBMAX, CTL_EOL); 703 sysctl_createv(clog, 0, NULL, NULL, 704 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 705 CTLTYPE_INT, "monotonic_clock", 706 SYSCTL_DESCR("Implementation version of the POSIX " 707 "1003.1b Monotonic Clock Option"), 708 /* XXX _POSIX_VERSION */ 709 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 710 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 711 sysctl_createv(clog, 0, NULL, NULL, 712 CTLFLAG_PERMANENT, 713 CTLTYPE_INT, "urandom", 714 SYSCTL_DESCR("Random integer value"), 715 sysctl_kern_urnd, 0, NULL, 0, 716 CTL_KERN, KERN_URND, CTL_EOL); 717 sysctl_createv(clog, 0, NULL, NULL, 718 CTLFLAG_PERMANENT, 719 CTLTYPE_INT, "arandom", 720 SYSCTL_DESCR("n bytes of random data"), 721 sysctl_kern_arnd, 0, NULL, 0, 722 CTL_KERN, KERN_ARND, CTL_EOL); 723 sysctl_createv(clog, 0, NULL, NULL, 724 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 725 CTLTYPE_INT, "labelsector", 726 SYSCTL_DESCR("Sector number containing the disklabel"), 727 NULL, LABELSECTOR, NULL, 0, 728 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 729 sysctl_createv(clog, 0, NULL, NULL, 730 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 731 CTLTYPE_INT, "labeloffset", 732 SYSCTL_DESCR("Offset of the disklabel within the " 733 "sector"), 734 NULL, LABELOFFSET, NULL, 0, 735 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 736 sysctl_createv(clog, 0, NULL, NULL, 737 CTLFLAG_PERMANENT, 738 CTLTYPE_NODE, "lwp", 739 SYSCTL_DESCR("System-wide LWP information"), 740 sysctl_kern_lwp, 0, NULL, 0, 741 CTL_KERN, KERN_LWP, CTL_EOL); 742 sysctl_createv(clog, 0, NULL, NULL, 743 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 744 CTLTYPE_INT, "forkfsleep", 745 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 746 "to process limits"), 747 sysctl_kern_forkfsleep, 0, NULL, 0, 748 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 749 sysctl_createv(clog, 0, NULL, NULL, 750 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 751 CTLTYPE_INT, "posix_threads", 752 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 753 "Threads option to which the system " 754 "attempts to conform"), 755 /* XXX _POSIX_VERSION */ 756 NULL, _POSIX_THREADS, NULL, 0, 757 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 758 sysctl_createv(clog, 0, NULL, NULL, 759 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 760 CTLTYPE_INT, "posix_semaphores", 761 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 762 "Semaphores option to which the system " 763 "attempts to conform"), NULL, 764 #ifdef P1003_1B_SEMAPHORE 765 200112, 766 #else /* P1003_1B_SEMAPHORE */ 767 0, 768 #endif /* P1003_1B_SEMAPHORE */ 769 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 770 sysctl_createv(clog, 0, NULL, NULL, 771 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 772 CTLTYPE_INT, "posix_barriers", 773 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 774 "Barriers option to which the system " 775 "attempts to conform"), 776 /* XXX _POSIX_VERSION */ 777 NULL, _POSIX_BARRIERS, NULL, 0, 778 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 779 sysctl_createv(clog, 0, NULL, NULL, 780 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 781 CTLTYPE_INT, "posix_timers", 782 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 783 "Timers option to which the system " 784 "attempts to conform"), 785 /* XXX _POSIX_VERSION */ 786 NULL, _POSIX_TIMERS, NULL, 0, 787 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 788 sysctl_createv(clog, 0, NULL, NULL, 789 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 790 CTLTYPE_INT, "posix_spin_locks", 791 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 792 "Locks option to which the system attempts " 793 "to conform"), 794 /* XXX _POSIX_VERSION */ 795 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 796 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 797 sysctl_createv(clog, 0, NULL, NULL, 798 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 799 CTLTYPE_INT, "posix_reader_writer_locks", 800 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 801 "Read-Write Locks option to which the " 802 "system attempts to conform"), 803 /* XXX _POSIX_VERSION */ 804 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 805 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 806 sysctl_createv(clog, 0, NULL, NULL, 807 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 808 CTLTYPE_INT, "dump_on_panic", 809 SYSCTL_DESCR("Perform a crash dump on system panic"), 810 NULL, 0, &dumponpanic, 0, 811 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 812 #ifdef DIAGNOSTIC 813 sysctl_createv(clog, 0, NULL, NULL, 814 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 815 CTLTYPE_INT, "panic_now", 816 SYSCTL_DESCR("Trigger a panic"), 817 sysctl_kern_trigger_panic, 0, NULL, 0, 818 CTL_KERN, CTL_CREATE, CTL_EOL); 819 #endif 820 sysctl_createv(clog, 0, NULL, NULL, 821 CTLFLAG_PERMANENT, 822 CTLTYPE_INT, "root_partition", 823 SYSCTL_DESCR("Root partition on the root device"), 824 sysctl_kern_root_partition, 0, NULL, 0, 825 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 826 sysctl_createv(clog, 0, NULL, NULL, 827 CTLFLAG_PERMANENT, 828 CTLTYPE_STRUCT, "drivers", 829 SYSCTL_DESCR("List of all drivers with block and " 830 "character device numbers"), 831 sysctl_kern_drivers, 0, NULL, 0, 832 CTL_KERN, KERN_DRIVERS, CTL_EOL); 833 sysctl_createv(clog, 0, NULL, NULL, 834 CTLFLAG_PERMANENT, 835 CTLTYPE_STRUCT, "file2", 836 SYSCTL_DESCR("System open file table"), 837 sysctl_kern_file2, 0, NULL, 0, 838 CTL_KERN, KERN_FILE2, CTL_EOL); 839 sysctl_createv(clog, 0, NULL, NULL, 840 CTLFLAG_PERMANENT, 841 CTLTYPE_STRUCT, "cp_id", 842 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 843 sysctl_kern_cpid, 0, NULL, 0, 844 CTL_KERN, KERN_CP_ID, CTL_EOL); 845 sysctl_createv(clog, 0, NULL, &rnode, 846 CTLFLAG_PERMANENT, 847 CTLTYPE_NODE, "coredump", 848 SYSCTL_DESCR("Coredump settings."), 849 NULL, 0, NULL, 0, 850 CTL_KERN, CTL_CREATE, CTL_EOL); 851 sysctl_createv(clog, 0, &rnode, &rnode, 852 CTLFLAG_PERMANENT, 853 CTLTYPE_NODE, "setid", 854 SYSCTL_DESCR("Set-id processes' coredump settings."), 855 NULL, 0, NULL, 0, 856 CTL_CREATE, CTL_EOL); 857 sysctl_createv(clog, 0, &rnode, NULL, 858 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 859 CTLTYPE_INT, "dump", 860 SYSCTL_DESCR("Allow set-id processes to dump core."), 861 sysctl_security_setidcore, 0, &security_setidcore_dump, 862 sizeof(security_setidcore_dump), 863 CTL_CREATE, CTL_EOL); 864 sysctl_createv(clog, 0, &rnode, NULL, 865 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 866 CTLTYPE_STRING, "path", 867 SYSCTL_DESCR("Path pattern for set-id coredumps."), 868 sysctl_security_setidcorename, 0, 869 &security_setidcore_path, 870 sizeof(security_setidcore_path), 871 CTL_CREATE, CTL_EOL); 872 sysctl_createv(clog, 0, &rnode, NULL, 873 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 874 CTLTYPE_INT, "owner", 875 SYSCTL_DESCR("Owner id for set-id processes' cores."), 876 sysctl_security_setidcore, 0, &security_setidcore_owner, 877 0, 878 CTL_CREATE, CTL_EOL); 879 sysctl_createv(clog, 0, &rnode, NULL, 880 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 881 CTLTYPE_INT, "group", 882 SYSCTL_DESCR("Group id for set-id processes' cores."), 883 sysctl_security_setidcore, 0, &security_setidcore_group, 884 0, 885 CTL_CREATE, CTL_EOL); 886 sysctl_createv(clog, 0, &rnode, NULL, 887 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 888 CTLTYPE_INT, "mode", 889 SYSCTL_DESCR("Mode for set-id processes' cores."), 890 sysctl_security_setidcore, 0, &security_setidcore_mode, 891 0, 892 CTL_CREATE, CTL_EOL); 893 } 894 895 SYSCTL_SETUP(sysctl_kern_proc_setup, 896 "sysctl kern.proc/proc2/proc_args subtree setup") 897 { 898 899 sysctl_createv(clog, 0, NULL, NULL, 900 CTLFLAG_PERMANENT, 901 CTLTYPE_NODE, "kern", NULL, 902 NULL, 0, NULL, 0, 903 CTL_KERN, CTL_EOL); 904 905 sysctl_createv(clog, 0, NULL, NULL, 906 CTLFLAG_PERMANENT, 907 CTLTYPE_NODE, "proc", 908 SYSCTL_DESCR("System-wide process information"), 909 sysctl_doeproc, 0, NULL, 0, 910 CTL_KERN, KERN_PROC, CTL_EOL); 911 sysctl_createv(clog, 0, NULL, NULL, 912 CTLFLAG_PERMANENT, 913 CTLTYPE_NODE, "proc2", 914 SYSCTL_DESCR("Machine-independent process information"), 915 sysctl_doeproc, 0, NULL, 0, 916 CTL_KERN, KERN_PROC2, CTL_EOL); 917 sysctl_createv(clog, 0, NULL, NULL, 918 CTLFLAG_PERMANENT, 919 CTLTYPE_NODE, "proc_args", 920 SYSCTL_DESCR("Process argument information"), 921 sysctl_kern_proc_args, 0, NULL, 0, 922 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 923 924 /* 925 "nodes" under these: 926 927 KERN_PROC_ALL 928 KERN_PROC_PID pid 929 KERN_PROC_PGRP pgrp 930 KERN_PROC_SESSION sess 931 KERN_PROC_TTY tty 932 KERN_PROC_UID uid 933 KERN_PROC_RUID uid 934 KERN_PROC_GID gid 935 KERN_PROC_RGID gid 936 937 all in all, probably not worth the effort... 938 */ 939 } 940 941 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 942 { 943 u_int u; 944 u_quad_t q; 945 946 sysctl_createv(clog, 0, NULL, NULL, 947 CTLFLAG_PERMANENT, 948 CTLTYPE_NODE, "hw", NULL, 949 NULL, 0, NULL, 0, 950 CTL_HW, CTL_EOL); 951 952 sysctl_createv(clog, 0, NULL, NULL, 953 CTLFLAG_PERMANENT, 954 CTLTYPE_STRING, "machine", 955 SYSCTL_DESCR("Machine class"), 956 NULL, 0, machine, 0, 957 CTL_HW, HW_MACHINE, CTL_EOL); 958 sysctl_createv(clog, 0, NULL, NULL, 959 CTLFLAG_PERMANENT, 960 CTLTYPE_STRING, "model", 961 SYSCTL_DESCR("Machine model"), 962 NULL, 0, cpu_model, 0, 963 CTL_HW, HW_MODEL, CTL_EOL); 964 sysctl_createv(clog, 0, NULL, NULL, 965 CTLFLAG_PERMANENT, 966 CTLTYPE_INT, "ncpu", 967 SYSCTL_DESCR("Number of active CPUs"), 968 sysctl_hw_ncpu, 0, NULL, 0, 969 CTL_HW, HW_NCPU, CTL_EOL); 970 sysctl_createv(clog, 0, NULL, NULL, 971 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 972 CTLTYPE_INT, "byteorder", 973 SYSCTL_DESCR("System byte order"), 974 NULL, BYTE_ORDER, NULL, 0, 975 CTL_HW, HW_BYTEORDER, CTL_EOL); 976 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 977 UINT_MAX : physmem * PAGE_SIZE; 978 sysctl_createv(clog, 0, NULL, NULL, 979 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 980 CTLTYPE_INT, "physmem", 981 SYSCTL_DESCR("Bytes of physical memory"), 982 NULL, u, NULL, 0, 983 CTL_HW, HW_PHYSMEM, CTL_EOL); 984 sysctl_createv(clog, 0, NULL, NULL, 985 CTLFLAG_PERMANENT, 986 CTLTYPE_INT, "usermem", 987 SYSCTL_DESCR("Bytes of non-kernel memory"), 988 sysctl_hw_usermem, 0, NULL, 0, 989 CTL_HW, HW_USERMEM, CTL_EOL); 990 sysctl_createv(clog, 0, NULL, NULL, 991 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 992 CTLTYPE_INT, "pagesize", 993 SYSCTL_DESCR("Software page size"), 994 NULL, PAGE_SIZE, NULL, 0, 995 CTL_HW, HW_PAGESIZE, CTL_EOL); 996 sysctl_createv(clog, 0, NULL, NULL, 997 CTLFLAG_PERMANENT, 998 CTLTYPE_STRING, "machine_arch", 999 SYSCTL_DESCR("Machine CPU class"), 1000 NULL, 0, machine_arch, 0, 1001 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 1002 sysctl_createv(clog, 0, NULL, NULL, 1003 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 1004 CTLTYPE_INT, "alignbytes", 1005 SYSCTL_DESCR("Alignment constraint for all possible " 1006 "data types"), 1007 NULL, ALIGNBYTES, NULL, 0, 1008 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 1009 sysctl_createv(clog, 0, NULL, NULL, 1010 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 1011 CTLTYPE_STRING, "cnmagic", 1012 SYSCTL_DESCR("Console magic key sequence"), 1013 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 1014 CTL_HW, HW_CNMAGIC, CTL_EOL); 1015 q = (u_quad_t)physmem * PAGE_SIZE; 1016 sysctl_createv(clog, 0, NULL, NULL, 1017 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 1018 CTLTYPE_QUAD, "physmem64", 1019 SYSCTL_DESCR("Bytes of physical memory"), 1020 NULL, q, NULL, 0, 1021 CTL_HW, HW_PHYSMEM64, CTL_EOL); 1022 sysctl_createv(clog, 0, NULL, NULL, 1023 CTLFLAG_PERMANENT, 1024 CTLTYPE_QUAD, "usermem64", 1025 SYSCTL_DESCR("Bytes of non-kernel memory"), 1026 sysctl_hw_usermem, 0, NULL, 0, 1027 CTL_HW, HW_USERMEM64, CTL_EOL); 1028 } 1029 1030 #ifdef DEBUG 1031 /* 1032 * Debugging related system variables. 1033 */ 1034 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 1035 struct ctldebug debug5, debug6, debug7, debug8, debug9; 1036 struct ctldebug debug10, debug11, debug12, debug13, debug14; 1037 struct ctldebug debug15, debug16, debug17, debug18, debug19; 1038 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 1039 &debug0, &debug1, &debug2, &debug3, &debug4, 1040 &debug5, &debug6, &debug7, &debug8, &debug9, 1041 &debug10, &debug11, &debug12, &debug13, &debug14, 1042 &debug15, &debug16, &debug17, &debug18, &debug19, 1043 }; 1044 1045 /* 1046 * this setup routine is a replacement for debug_sysctl() 1047 * 1048 * note that it creates several nodes per defined debug variable 1049 */ 1050 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1051 { 1052 struct ctldebug *cdp; 1053 char nodename[20]; 1054 int i; 1055 1056 /* 1057 * two ways here: 1058 * 1059 * the "old" way (debug.name -> value) which was emulated by 1060 * the sysctl(8) binary 1061 * 1062 * the new way, which the sysctl(8) binary was actually using 1063 1064 node debug 1065 node debug.0 1066 string debug.0.name 1067 int debug.0.value 1068 int debug.name 1069 1070 */ 1071 1072 sysctl_createv(clog, 0, NULL, NULL, 1073 CTLFLAG_PERMANENT, 1074 CTLTYPE_NODE, "debug", NULL, 1075 NULL, 0, NULL, 0, 1076 CTL_DEBUG, CTL_EOL); 1077 1078 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1079 cdp = debugvars[i]; 1080 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1081 continue; 1082 1083 snprintf(nodename, sizeof(nodename), "debug%d", i); 1084 sysctl_createv(clog, 0, NULL, NULL, 1085 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1086 CTLTYPE_NODE, nodename, NULL, 1087 NULL, 0, NULL, 0, 1088 CTL_DEBUG, i, CTL_EOL); 1089 sysctl_createv(clog, 0, NULL, NULL, 1090 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1091 CTLTYPE_STRING, "name", NULL, 1092 /*XXXUNCONST*/ 1093 NULL, 0, __UNCONST(cdp->debugname), 0, 1094 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1095 sysctl_createv(clog, 0, NULL, NULL, 1096 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1097 CTLTYPE_INT, "value", NULL, 1098 NULL, 0, cdp->debugvar, 0, 1099 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1100 sysctl_createv(clog, 0, NULL, NULL, 1101 CTLFLAG_PERMANENT, 1102 CTLTYPE_INT, cdp->debugname, NULL, 1103 NULL, 0, cdp->debugvar, 0, 1104 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1105 } 1106 } 1107 #endif /* DEBUG */ 1108 1109 /* 1110 * ******************************************************************** 1111 * section 2: private node-specific helper routines. 1112 * ******************************************************************** 1113 */ 1114 1115 #ifdef DIAGNOSTIC 1116 static int 1117 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1118 { 1119 int newtrig, error; 1120 struct sysctlnode node; 1121 1122 newtrig = 0; 1123 node = *rnode; 1124 node.sysctl_data = &newtrig; 1125 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1126 if (error || newp == NULL) 1127 return (error); 1128 1129 if (newtrig != 0) 1130 panic("Panic triggered"); 1131 1132 return (error); 1133 } 1134 #endif 1135 1136 /* 1137 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1138 * new value is lower than desiredvnodes and then calls reinit 1139 * routines that needs to adjust to the new value. 1140 */ 1141 static int 1142 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1143 { 1144 int error, new_vnodes, old_vnodes; 1145 struct sysctlnode node; 1146 1147 new_vnodes = desiredvnodes; 1148 node = *rnode; 1149 node.sysctl_data = &new_vnodes; 1150 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1151 if (error || newp == NULL) 1152 return (error); 1153 1154 old_vnodes = desiredvnodes; 1155 desiredvnodes = new_vnodes; 1156 if (new_vnodes < old_vnodes) { 1157 error = vfs_drainvnodes(new_vnodes, l); 1158 if (error) { 1159 desiredvnodes = old_vnodes; 1160 return (error); 1161 } 1162 } 1163 vfs_reinit(); 1164 nchreinit(); 1165 1166 return (0); 1167 } 1168 1169 /* 1170 * sysctl helper routine for rtc_offset - set time after changes 1171 */ 1172 static int 1173 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1174 { 1175 struct timespec ts, delta; 1176 int error, new_rtc_offset; 1177 struct sysctlnode node; 1178 1179 new_rtc_offset = rtc_offset; 1180 node = *rnode; 1181 node.sysctl_data = &new_rtc_offset; 1182 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1183 if (error || newp == NULL) 1184 return (error); 1185 1186 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1187 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1188 (void *)(u_long)new_rtc_offset, NULL, NULL)) 1189 return (EPERM); 1190 if (rtc_offset == new_rtc_offset) 1191 return (0); 1192 1193 /* if we change the offset, adjust the time */ 1194 nanotime(&ts); 1195 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1196 delta.tv_nsec = 0; 1197 timespecadd(&ts, &delta, &ts); 1198 rtc_offset = new_rtc_offset; 1199 settime(l->l_proc, &ts); 1200 1201 return (0); 1202 } 1203 1204 /* 1205 * sysctl helper routine for kern.maxproc. ensures that the new 1206 * values are not too low or too high. 1207 */ 1208 static int 1209 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1210 { 1211 int error, nmaxproc; 1212 struct sysctlnode node; 1213 1214 nmaxproc = maxproc; 1215 node = *rnode; 1216 node.sysctl_data = &nmaxproc; 1217 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1218 if (error || newp == NULL) 1219 return (error); 1220 1221 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1222 return (EINVAL); 1223 #ifdef __HAVE_CPU_MAXPROC 1224 if (nmaxproc > cpu_maxproc()) 1225 return (EINVAL); 1226 #endif 1227 maxproc = nmaxproc; 1228 1229 return (0); 1230 } 1231 1232 /* 1233 * sysctl helper function for kern.hostid. the hostid is a long, but 1234 * we export it as an int, so we need to give it a little help. 1235 */ 1236 static int 1237 sysctl_kern_hostid(SYSCTLFN_ARGS) 1238 { 1239 int error, inthostid; 1240 struct sysctlnode node; 1241 1242 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1243 node = *rnode; 1244 node.sysctl_data = &inthostid; 1245 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1246 if (error || newp == NULL) 1247 return (error); 1248 1249 hostid = (unsigned)inthostid; 1250 1251 return (0); 1252 } 1253 1254 /* 1255 * sysctl helper function for kern.hostname and kern.domainnname. 1256 * resets the relevant recorded length when the underlying name is 1257 * changed. 1258 */ 1259 static int 1260 sysctl_setlen(SYSCTLFN_ARGS) 1261 { 1262 int error; 1263 1264 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1265 if (error || newp == NULL) 1266 return (error); 1267 1268 switch (rnode->sysctl_num) { 1269 case KERN_HOSTNAME: 1270 hostnamelen = strlen((const char*)rnode->sysctl_data); 1271 break; 1272 case KERN_DOMAINNAME: 1273 domainnamelen = strlen((const char*)rnode->sysctl_data); 1274 break; 1275 } 1276 1277 return (0); 1278 } 1279 1280 /* 1281 * sysctl helper routine for kern.clockrate. assembles a struct on 1282 * the fly to be returned to the caller. 1283 */ 1284 static int 1285 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1286 { 1287 struct clockinfo clkinfo; 1288 struct sysctlnode node; 1289 1290 clkinfo.tick = tick; 1291 clkinfo.tickadj = tickadj; 1292 clkinfo.hz = hz; 1293 clkinfo.profhz = profhz; 1294 clkinfo.stathz = stathz ? stathz : hz; 1295 1296 node = *rnode; 1297 node.sysctl_data = &clkinfo; 1298 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1299 } 1300 1301 1302 /* 1303 * sysctl helper routine for kern.file pseudo-subtree. 1304 */ 1305 static int 1306 sysctl_kern_file(SYSCTLFN_ARGS) 1307 { 1308 int error; 1309 size_t buflen; 1310 struct file *fp; 1311 char *start, *where; 1312 1313 start = where = oldp; 1314 buflen = *oldlenp; 1315 if (where == NULL) { 1316 /* 1317 * overestimate by 10 files 1318 */ 1319 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1320 return (0); 1321 } 1322 1323 /* 1324 * first dcopyout filehead 1325 */ 1326 if (buflen < sizeof(filehead)) { 1327 *oldlenp = 0; 1328 return (0); 1329 } 1330 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1331 if (error) 1332 return (error); 1333 buflen -= sizeof(filehead); 1334 where += sizeof(filehead); 1335 1336 /* 1337 * followed by an array of file structures 1338 */ 1339 LIST_FOREACH(fp, &filehead, f_list) { 1340 if (kauth_authorize_generic(l->l_cred, 1341 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1342 continue; 1343 if (buflen < sizeof(struct file)) { 1344 *oldlenp = where - start; 1345 return (ENOMEM); 1346 } 1347 error = dcopyout(l, fp, where, sizeof(struct file)); 1348 if (error) 1349 return (error); 1350 buflen -= sizeof(struct file); 1351 where += sizeof(struct file); 1352 } 1353 *oldlenp = where - start; 1354 return (0); 1355 } 1356 1357 /* 1358 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1359 * asserts that the assigned value is in the correct range. 1360 */ 1361 static int 1362 sysctl_kern_autonice(SYSCTLFN_ARGS) 1363 { 1364 int error, t = 0; 1365 struct sysctlnode node; 1366 1367 node = *rnode; 1368 t = *(int*)node.sysctl_data; 1369 node.sysctl_data = &t; 1370 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1371 if (error || newp == NULL) 1372 return (error); 1373 1374 switch (node.sysctl_num) { 1375 case KERN_AUTONICETIME: 1376 if (t >= 0) 1377 autonicetime = t; 1378 break; 1379 case KERN_AUTONICEVAL: 1380 if (t < PRIO_MIN) 1381 t = PRIO_MIN; 1382 else if (t > PRIO_MAX) 1383 t = PRIO_MAX; 1384 autoniceval = t; 1385 break; 1386 } 1387 1388 return (0); 1389 } 1390 1391 /* 1392 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1393 * former it merely checks the message buffer is set up. for the latter, 1394 * it also copies out the data if necessary. 1395 */ 1396 static int 1397 sysctl_msgbuf(SYSCTLFN_ARGS) 1398 { 1399 char *where = oldp; 1400 size_t len, maxlen; 1401 long beg, end; 1402 int error; 1403 1404 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1405 msgbufenabled = 0; 1406 return (ENXIO); 1407 } 1408 1409 switch (rnode->sysctl_num) { 1410 case KERN_MSGBUFSIZE: { 1411 struct sysctlnode node = *rnode; 1412 int msg_bufs = (int)msgbufp->msg_bufs; 1413 node.sysctl_data = &msg_bufs; 1414 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1415 } 1416 case KERN_MSGBUF: 1417 break; 1418 default: 1419 return (EOPNOTSUPP); 1420 } 1421 1422 if (newp != NULL) 1423 return (EPERM); 1424 1425 if (oldp == NULL) { 1426 /* always return full buffer size */ 1427 *oldlenp = msgbufp->msg_bufs; 1428 return (0); 1429 } 1430 1431 error = 0; 1432 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1433 1434 /* 1435 * First, copy from the write pointer to the end of 1436 * message buffer. 1437 */ 1438 beg = msgbufp->msg_bufx; 1439 end = msgbufp->msg_bufs; 1440 while (maxlen > 0) { 1441 len = MIN(end - beg, maxlen); 1442 if (len == 0) 1443 break; 1444 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1445 if (error) 1446 break; 1447 where += len; 1448 maxlen -= len; 1449 1450 /* 1451 * ... then, copy from the beginning of message buffer to 1452 * the write pointer. 1453 */ 1454 beg = 0; 1455 end = msgbufp->msg_bufx; 1456 } 1457 1458 return (error); 1459 } 1460 1461 /* 1462 * sysctl helper routine for kern.defcorename. in the case of a new 1463 * string being assigned, check that it's not a zero-length string. 1464 * (XXX the check in -current doesn't work, but do we really care?) 1465 */ 1466 static int 1467 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1468 { 1469 int error; 1470 char *newcorename; 1471 struct sysctlnode node; 1472 1473 newcorename = PNBUF_GET(); 1474 node = *rnode; 1475 node.sysctl_data = &newcorename[0]; 1476 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1477 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1478 if (error || newp == NULL) { 1479 goto done; 1480 } 1481 1482 /* 1483 * when sysctl_lookup() deals with a string, it's guaranteed 1484 * to come back nul terminated. so there. :) 1485 */ 1486 if (strlen(newcorename) == 0) { 1487 error = EINVAL; 1488 } else { 1489 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1490 error = 0; 1491 } 1492 done: 1493 PNBUF_PUT(newcorename); 1494 return error; 1495 } 1496 1497 /* 1498 * sysctl helper routine for kern.cp_time node. adds up cpu time 1499 * across all cpus. 1500 */ 1501 static int 1502 sysctl_kern_cptime(SYSCTLFN_ARGS) 1503 { 1504 struct sysctlnode node = *rnode; 1505 1506 #ifndef MULTIPROCESSOR 1507 1508 if (namelen == 1) { 1509 if (name[0] != 0) 1510 return (ENOENT); 1511 /* 1512 * you're allowed to ask for the zero'th processor 1513 */ 1514 name++; 1515 namelen--; 1516 } 1517 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1518 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1519 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1520 1521 #else /* MULTIPROCESSOR */ 1522 1523 uint64_t *cp_time = NULL; 1524 int error, n = sysctl_ncpus(), i; 1525 struct cpu_info *ci; 1526 CPU_INFO_ITERATOR cii; 1527 1528 /* 1529 * if you specifically pass a buffer that is the size of the 1530 * sum, or if you are probing for the size, you get the "sum" 1531 * of cp_time (and the size thereof) across all processors. 1532 * 1533 * alternately, you can pass an additional mib number and get 1534 * cp_time for that particular processor. 1535 */ 1536 switch (namelen) { 1537 case 0: 1538 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1539 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1540 n = -1; /* SUM */ 1541 } 1542 else { 1543 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1544 n = -2; /* ALL */ 1545 } 1546 break; 1547 case 1: 1548 if (name[0] < 0 || name[0] >= n) 1549 return (ENOENT); /* ENOSUCHPROCESSOR */ 1550 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1551 n = name[0]; 1552 /* 1553 * adjust these so that sysctl_lookup() will be happy 1554 */ 1555 name++; 1556 namelen--; 1557 break; 1558 default: 1559 return (EINVAL); 1560 } 1561 1562 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1563 if (cp_time == NULL) 1564 return (ENOMEM); 1565 node.sysctl_data = cp_time; 1566 memset(cp_time, 0, node.sysctl_size); 1567 1568 for (CPU_INFO_FOREACH(cii, ci)) { 1569 if (n <= 0) 1570 for (i = 0; i < CPUSTATES; i++) 1571 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1572 /* 1573 * if a specific processor was requested and we just 1574 * did it, we're done here 1575 */ 1576 if (n == 0) 1577 break; 1578 /* 1579 * if doing "all", skip to next cp_time set for next processor 1580 */ 1581 if (n == -2) 1582 cp_time += CPUSTATES; 1583 /* 1584 * if we're doing a specific processor, we're one 1585 * processor closer 1586 */ 1587 if (n > 0) 1588 n--; 1589 } 1590 1591 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1592 free(node.sysctl_data, M_TEMP); 1593 return (error); 1594 1595 #endif /* MULTIPROCESSOR */ 1596 } 1597 1598 #if NPTY > 0 1599 /* 1600 * sysctl helper routine for kern.maxptys. ensures that any new value 1601 * is acceptable to the pty subsystem. 1602 */ 1603 static int 1604 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1605 { 1606 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1607 int error, xmax; 1608 struct sysctlnode node; 1609 1610 /* get current value of maxptys */ 1611 xmax = pty_maxptys(0, 0); 1612 1613 node = *rnode; 1614 node.sysctl_data = &xmax; 1615 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1616 if (error || newp == NULL) 1617 return (error); 1618 1619 if (xmax != pty_maxptys(xmax, 1)) 1620 return (EINVAL); 1621 1622 return (0); 1623 } 1624 #endif /* NPTY > 0 */ 1625 1626 /* 1627 * sysctl helper routine for kern.sbmax. basically just ensures that 1628 * any new value is not too small. 1629 */ 1630 static int 1631 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1632 { 1633 int error, new_sbmax; 1634 struct sysctlnode node; 1635 1636 new_sbmax = sb_max; 1637 node = *rnode; 1638 node.sysctl_data = &new_sbmax; 1639 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1640 if (error || newp == NULL) 1641 return (error); 1642 1643 error = sb_max_set(new_sbmax); 1644 1645 return (error); 1646 } 1647 1648 /* 1649 * sysctl helper routine for kern.urandom node. picks a random number 1650 * for you. 1651 */ 1652 static int 1653 sysctl_kern_urnd(SYSCTLFN_ARGS) 1654 { 1655 #if NRND > 0 1656 int v; 1657 1658 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1659 struct sysctlnode node = *rnode; 1660 node.sysctl_data = &v; 1661 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1662 } 1663 else 1664 return (EIO); /*XXX*/ 1665 #else 1666 return (EOPNOTSUPP); 1667 #endif 1668 } 1669 1670 /* 1671 * sysctl helper routine for kern.arandom node. picks a random number 1672 * for you. 1673 */ 1674 static int 1675 sysctl_kern_arnd(SYSCTLFN_ARGS) 1676 { 1677 #if NRND > 0 1678 int error; 1679 void *v; 1680 struct sysctlnode node = *rnode; 1681 1682 if (*oldlenp == 0) 1683 return 0; 1684 if (*oldlenp > 8192) 1685 return E2BIG; 1686 1687 v = malloc(*oldlenp, M_TEMP, M_WAITOK); 1688 1689 arc4randbytes(v, *oldlenp); 1690 node.sysctl_data = v; 1691 node.sysctl_size = *oldlenp; 1692 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1693 free(v, M_TEMP); 1694 return error; 1695 #else 1696 return (EOPNOTSUPP); 1697 #endif 1698 } 1699 /* 1700 * sysctl helper routine to do kern.lwp.* work. 1701 */ 1702 static int 1703 sysctl_kern_lwp(SYSCTLFN_ARGS) 1704 { 1705 struct kinfo_lwp klwp; 1706 struct proc *p; 1707 struct lwp *l2; 1708 char *where, *dp; 1709 int pid, elem_size, elem_count; 1710 int buflen, needed, error; 1711 1712 if (namelen == 1 && name[0] == CTL_QUERY) 1713 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1714 1715 dp = where = oldp; 1716 buflen = where != NULL ? *oldlenp : 0; 1717 error = needed = 0; 1718 1719 if (newp != NULL || namelen != 3) 1720 return (EINVAL); 1721 pid = name[0]; 1722 elem_size = name[1]; 1723 elem_count = name[2]; 1724 1725 p = p_find(pid, PFIND_UNLOCK_FAIL); 1726 if (p == NULL) 1727 return (ESRCH); 1728 mutex_enter(&p->p_smutex); 1729 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1730 if (buflen >= elem_size && elem_count > 0) { 1731 lwp_lock(l2); 1732 fill_lwp(l2, &klwp); 1733 lwp_unlock(l2); 1734 1735 /* 1736 * Copy out elem_size, but not larger than 1737 * the size of a struct kinfo_proc2. 1738 * 1739 * XXX We should not be holding p_smutex, but 1740 * for now, the buffer is wired. Fix later. 1741 */ 1742 error = dcopyout(l, &klwp, dp, 1743 min(sizeof(klwp), elem_size)); 1744 if (error) 1745 goto cleanup; 1746 dp += elem_size; 1747 buflen -= elem_size; 1748 elem_count--; 1749 } 1750 needed += elem_size; 1751 } 1752 mutex_exit(&p->p_smutex); 1753 rw_exit(&proclist_lock); 1754 1755 if (where != NULL) { 1756 *oldlenp = dp - where; 1757 if (needed > *oldlenp) 1758 return (ENOMEM); 1759 } else { 1760 needed += KERN_LWPSLOP; 1761 *oldlenp = needed; 1762 } 1763 return (0); 1764 cleanup: 1765 return (error); 1766 } 1767 1768 /* 1769 * sysctl helper routine for kern.forkfsleep node. ensures that the 1770 * given value is not too large or two small, and is at least one 1771 * timer tick if not zero. 1772 */ 1773 static int 1774 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1775 { 1776 /* userland sees value in ms, internally is in ticks */ 1777 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1778 int error, timo, lsleep; 1779 struct sysctlnode node; 1780 1781 lsleep = forkfsleep * 1000 / hz; 1782 node = *rnode; 1783 node.sysctl_data = &lsleep; 1784 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1785 if (error || newp == NULL) 1786 return (error); 1787 1788 /* refuse negative values, and overly 'long time' */ 1789 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1790 return (EINVAL); 1791 1792 timo = mstohz(lsleep); 1793 1794 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1795 if (lsleep != 0 && timo == 0) 1796 forkfsleep = 1; 1797 else 1798 forkfsleep = timo; 1799 1800 return (0); 1801 } 1802 1803 /* 1804 * sysctl helper routine for kern.root_partition 1805 */ 1806 static int 1807 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1808 { 1809 int rootpart = DISKPART(rootdev); 1810 struct sysctlnode node = *rnode; 1811 1812 node.sysctl_data = &rootpart; 1813 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1814 } 1815 1816 /* 1817 * sysctl helper function for kern.drivers 1818 */ 1819 static int 1820 sysctl_kern_drivers(SYSCTLFN_ARGS) 1821 { 1822 int error; 1823 size_t buflen; 1824 struct kinfo_drivers kd; 1825 char *start, *where; 1826 const char *dname; 1827 int i; 1828 extern struct devsw_conv *devsw_conv; 1829 extern int max_devsw_convs; 1830 1831 if (newp != NULL || namelen != 0) 1832 return (EINVAL); 1833 1834 start = where = oldp; 1835 buflen = *oldlenp; 1836 if (where == NULL) { 1837 *oldlenp = max_devsw_convs * sizeof kd; 1838 return 0; 1839 } 1840 1841 /* 1842 * An array of kinfo_drivers structures 1843 */ 1844 error = 0; 1845 for (i = 0; i < max_devsw_convs; i++) { 1846 dname = devsw_conv[i].d_name; 1847 if (dname == NULL) 1848 continue; 1849 if (buflen < sizeof kd) { 1850 error = ENOMEM; 1851 break; 1852 } 1853 memset(&kd, 0, sizeof(kd)); 1854 kd.d_bmajor = devsw_conv[i].d_bmajor; 1855 kd.d_cmajor = devsw_conv[i].d_cmajor; 1856 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1857 error = dcopyout(l, &kd, where, sizeof kd); 1858 if (error != 0) 1859 break; 1860 buflen -= sizeof kd; 1861 where += sizeof kd; 1862 } 1863 *oldlenp = where - start; 1864 return error; 1865 } 1866 1867 /* 1868 * sysctl helper function for kern.file2 1869 */ 1870 static int 1871 sysctl_kern_file2(SYSCTLFN_ARGS) 1872 { 1873 struct proc *p; 1874 struct file *fp; 1875 struct filedesc *fd; 1876 struct kinfo_file kf; 1877 char *dp; 1878 u_int i, op; 1879 size_t len, needed, elem_size, out_size; 1880 int error, arg, elem_count; 1881 1882 if (namelen == 1 && name[0] == CTL_QUERY) 1883 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1884 1885 if (namelen != 4) 1886 return (EINVAL); 1887 1888 error = 0; 1889 dp = oldp; 1890 len = (oldp != NULL) ? *oldlenp : 0; 1891 op = name[0]; 1892 arg = name[1]; 1893 elem_size = name[2]; 1894 elem_count = name[3]; 1895 out_size = MIN(sizeof(kf), elem_size); 1896 needed = 0; 1897 1898 if (elem_size < 1 || elem_count < 0) 1899 return (EINVAL); 1900 1901 switch (op) { 1902 case KERN_FILE_BYFILE: 1903 /* 1904 * doesn't use arg so it must be zero 1905 */ 1906 if (arg != 0) 1907 return (EINVAL); 1908 LIST_FOREACH(fp, &filehead, f_list) { 1909 if (kauth_authorize_generic(l->l_cred, 1910 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1911 continue; 1912 if (len >= elem_size && elem_count > 0) { 1913 fill_file(&kf, fp, NULL, 0); 1914 error = dcopyout(l, &kf, dp, out_size); 1915 if (error) 1916 break; 1917 dp += elem_size; 1918 len -= elem_size; 1919 } 1920 if (elem_count > 0) { 1921 needed += elem_size; 1922 if (elem_count != INT_MAX) 1923 elem_count--; 1924 } 1925 } 1926 break; 1927 case KERN_FILE_BYPID: 1928 if (arg < -1) 1929 /* -1 means all processes */ 1930 return (EINVAL); 1931 rw_enter(&proclist_lock, RW_READER); 1932 PROCLIST_FOREACH(p, &allproc) { 1933 if (p->p_stat == SIDL) 1934 /* skip embryonic processes */ 1935 continue; 1936 if (kauth_authorize_process(l->l_cred, 1937 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 1938 continue; 1939 if (arg > 0 && p->p_pid != arg) 1940 /* pick only the one we want */ 1941 /* XXX want 0 to mean "kernel files" */ 1942 continue; 1943 fd = p->p_fd; 1944 for (i = 0; i < fd->fd_nfiles; i++) { 1945 fp = fd->fd_ofiles[i]; 1946 if (fp == NULL || !FILE_IS_USABLE(fp)) 1947 continue; 1948 if (len >= elem_size && elem_count > 0) { 1949 fill_file(&kf, fd->fd_ofiles[i], 1950 p, i); 1951 error = dcopyout(l, &kf, dp, out_size); 1952 if (error) 1953 break; 1954 dp += elem_size; 1955 len -= elem_size; 1956 } 1957 if (elem_count > 0) { 1958 needed += elem_size; 1959 if (elem_count != INT_MAX) 1960 elem_count--; 1961 } 1962 } 1963 } 1964 rw_exit(&proclist_lock); 1965 break; 1966 default: 1967 return (EINVAL); 1968 } 1969 1970 if (oldp == NULL) 1971 needed += KERN_FILESLOP * elem_size; 1972 *oldlenp = needed; 1973 1974 return (error); 1975 } 1976 1977 static void 1978 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 1979 { 1980 1981 memset(kp, 0, sizeof(*kp)); 1982 1983 kp->ki_fileaddr = PTRTOUINT64(fp); 1984 kp->ki_flag = fp->f_flag; 1985 kp->ki_iflags = fp->f_iflags; 1986 kp->ki_ftype = fp->f_type; 1987 kp->ki_count = fp->f_count; 1988 kp->ki_msgcount = fp->f_msgcount; 1989 kp->ki_usecount = fp->f_usecount; 1990 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 1991 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 1992 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 1993 kp->ki_fops = PTRTOUINT64(fp->f_ops); 1994 kp->ki_foffset = fp->f_offset; 1995 kp->ki_fdata = PTRTOUINT64(fp->f_data); 1996 1997 /* vnode information to glue this file to something */ 1998 if (fp->f_type == DTYPE_VNODE) { 1999 struct vnode *vp = (struct vnode *)fp->f_data; 2000 2001 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2002 kp->ki_vsize = vp->v_size; 2003 kp->ki_vtype = vp->v_type; 2004 kp->ki_vtag = vp->v_tag; 2005 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2006 } 2007 2008 /* process information when retrieved via KERN_FILE_BYPID */ 2009 if (p) { 2010 kp->ki_pid = p->p_pid; 2011 kp->ki_fd = i; 2012 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2013 } 2014 } 2015 2016 static int 2017 sysctl_doeproc(SYSCTLFN_ARGS) 2018 { 2019 struct eproc *eproc; 2020 struct kinfo_proc2 *kproc2; 2021 struct kinfo_proc *dp; 2022 struct proc *p; 2023 const struct proclist_desc *pd; 2024 char *where, *dp2; 2025 int type, op, arg; 2026 u_int elem_size, elem_count; 2027 size_t buflen, needed; 2028 int error; 2029 2030 if (namelen == 1 && name[0] == CTL_QUERY) 2031 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2032 2033 dp = oldp; 2034 dp2 = where = oldp; 2035 buflen = where != NULL ? *oldlenp : 0; 2036 error = 0; 2037 needed = 0; 2038 type = rnode->sysctl_num; 2039 2040 if (type == KERN_PROC) { 2041 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2042 return (EINVAL); 2043 op = name[0]; 2044 if (op != KERN_PROC_ALL) 2045 arg = name[1]; 2046 else 2047 arg = 0; /* Quell compiler warning */ 2048 elem_size = elem_count = 0; /* Ditto */ 2049 } else { 2050 if (namelen != 4) 2051 return (EINVAL); 2052 op = name[0]; 2053 arg = name[1]; 2054 elem_size = name[2]; 2055 elem_count = name[3]; 2056 } 2057 2058 if (type == KERN_PROC) { 2059 eproc = malloc(sizeof(*eproc), M_TEMP, M_WAITOK); 2060 kproc2 = NULL; 2061 } else { 2062 eproc = NULL; 2063 kproc2 = malloc(sizeof(*kproc2), M_TEMP, M_WAITOK); 2064 } 2065 rw_enter(&proclist_lock, RW_READER); 2066 2067 pd = proclists; 2068 again: 2069 PROCLIST_FOREACH(p, pd->pd_list) { 2070 /* 2071 * Skip embryonic processes. 2072 */ 2073 if (p->p_stat == SIDL) 2074 continue; 2075 2076 if (kauth_authorize_process(l->l_cred, 2077 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2078 continue; 2079 2080 /* 2081 * TODO - make more efficient (see notes below). 2082 * do by session. 2083 */ 2084 switch (op) { 2085 2086 case KERN_PROC_PID: 2087 /* could do this with just a lookup */ 2088 if (p->p_pid != (pid_t)arg) 2089 continue; 2090 break; 2091 2092 case KERN_PROC_PGRP: 2093 /* could do this by traversing pgrp */ 2094 if (p->p_pgrp->pg_id != (pid_t)arg) 2095 continue; 2096 break; 2097 2098 case KERN_PROC_SESSION: 2099 if (p->p_session->s_sid != (pid_t)arg) 2100 continue; 2101 break; 2102 2103 case KERN_PROC_TTY: 2104 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2105 if ((p->p_lflag & PL_CONTROLT) == 0 || 2106 p->p_session->s_ttyp == NULL || 2107 p->p_session->s_ttyvp != NULL) 2108 continue; 2109 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2110 p->p_session->s_ttyp == NULL) { 2111 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2112 continue; 2113 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2114 continue; 2115 break; 2116 2117 case KERN_PROC_UID: 2118 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2119 continue; 2120 break; 2121 2122 case KERN_PROC_RUID: 2123 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2124 continue; 2125 break; 2126 2127 case KERN_PROC_GID: 2128 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2129 continue; 2130 break; 2131 2132 case KERN_PROC_RGID: 2133 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2134 continue; 2135 break; 2136 2137 case KERN_PROC_ALL: 2138 /* allow everything */ 2139 break; 2140 2141 default: 2142 error = EINVAL; 2143 goto cleanup; 2144 } 2145 if (type == KERN_PROC) { 2146 if (buflen >= sizeof(struct kinfo_proc)) { 2147 fill_eproc(p, eproc); 2148 error = dcopyout(l, p, &dp->kp_proc, 2149 sizeof(struct proc)); 2150 if (error) 2151 goto cleanup; 2152 error = dcopyout(l, eproc, &dp->kp_eproc, 2153 sizeof(*eproc)); 2154 if (error) 2155 goto cleanup; 2156 dp++; 2157 buflen -= sizeof(struct kinfo_proc); 2158 } 2159 needed += sizeof(struct kinfo_proc); 2160 } else { /* KERN_PROC2 */ 2161 if (buflen >= elem_size && elem_count > 0) { 2162 fill_kproc2(p, kproc2); 2163 /* 2164 * Copy out elem_size, but not larger than 2165 * the size of a struct kinfo_proc2. 2166 */ 2167 error = dcopyout(l, kproc2, dp2, 2168 min(sizeof(*kproc2), elem_size)); 2169 if (error) 2170 goto cleanup; 2171 dp2 += elem_size; 2172 buflen -= elem_size; 2173 elem_count--; 2174 } 2175 needed += elem_size; 2176 } 2177 } 2178 pd++; 2179 if (pd->pd_list != NULL) 2180 goto again; 2181 rw_exit(&proclist_lock); 2182 2183 if (where != NULL) { 2184 if (type == KERN_PROC) 2185 *oldlenp = (char *)dp - where; 2186 else 2187 *oldlenp = dp2 - where; 2188 if (needed > *oldlenp) { 2189 error = ENOMEM; 2190 goto out; 2191 } 2192 } else { 2193 needed += KERN_PROCSLOP; 2194 *oldlenp = needed; 2195 } 2196 if (kproc2) 2197 free(kproc2, M_TEMP); 2198 if (eproc) 2199 free(eproc, M_TEMP); 2200 return 0; 2201 cleanup: 2202 rw_exit(&proclist_lock); 2203 out: 2204 if (kproc2) 2205 free(kproc2, M_TEMP); 2206 if (eproc) 2207 free(eproc, M_TEMP); 2208 return error; 2209 } 2210 2211 /* 2212 * sysctl helper routine for kern.proc_args pseudo-subtree. 2213 */ 2214 static int 2215 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2216 { 2217 struct ps_strings pss; 2218 struct proc *p; 2219 size_t len, i; 2220 struct uio auio; 2221 struct iovec aiov; 2222 pid_t pid; 2223 int nargv, type, error; 2224 char *arg; 2225 char **argv = NULL; 2226 char *tmp; 2227 struct vmspace *vmspace; 2228 vaddr_t psstr_addr; 2229 vaddr_t offsetn; 2230 vaddr_t offsetv; 2231 2232 if (namelen == 1 && name[0] == CTL_QUERY) 2233 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2234 2235 if (newp != NULL || namelen != 2) 2236 return (EINVAL); 2237 pid = name[0]; 2238 type = name[1]; 2239 2240 switch (type) { 2241 case KERN_PROC_ARGV: 2242 case KERN_PROC_NARGV: 2243 case KERN_PROC_ENV: 2244 case KERN_PROC_NENV: 2245 /* ok */ 2246 break; 2247 default: 2248 return (EINVAL); 2249 } 2250 2251 rw_enter(&proclist_lock, RW_READER); 2252 2253 /* check pid */ 2254 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2255 error = EINVAL; 2256 goto out_locked; 2257 } 2258 2259 error = kauth_authorize_process(l->l_cred, 2260 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2261 if (error) { 2262 goto out_locked; 2263 } 2264 2265 /* only root or same user change look at the environment */ 2266 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2267 if (kauth_authorize_generic(l->l_cred, KAUTH_GENERIC_ISSUSER, 2268 NULL) != 0) { 2269 if (kauth_cred_getuid(l->l_cred) != 2270 kauth_cred_getuid(p->p_cred) || 2271 kauth_cred_getuid(l->l_cred) != 2272 kauth_cred_getsvuid(p->p_cred)) { 2273 error = EPERM; 2274 goto out_locked; 2275 } 2276 } 2277 } 2278 2279 if (oldp == NULL) { 2280 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2281 *oldlenp = sizeof (int); 2282 else 2283 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2284 error = 0; 2285 goto out_locked; 2286 } 2287 2288 /* 2289 * Zombies don't have a stack, so we can't read their psstrings. 2290 * System processes also don't have a user stack. 2291 */ 2292 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) { 2293 error = EINVAL; 2294 goto out_locked; 2295 } 2296 2297 /* 2298 * Lock the process down in memory. 2299 */ 2300 /* XXXCDC: how should locking work here? */ 2301 if ((l->l_flag & L_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2302 error = EFAULT; 2303 goto out_locked; 2304 } 2305 2306 psstr_addr = (vaddr_t)p->p_psstr; 2307 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2308 offsetn = p->p_psnargv; 2309 offsetv = p->p_psargv; 2310 } else { 2311 offsetn = p->p_psnenv; 2312 offsetv = p->p_psenv; 2313 } 2314 vmspace = p->p_vmspace; 2315 vmspace->vm_refcnt++; /* XXX */ 2316 2317 rw_exit(&proclist_lock); 2318 2319 /* 2320 * Allocate a temporary buffer to hold the arguments. 2321 */ 2322 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2323 2324 /* 2325 * Read in the ps_strings structure. 2326 */ 2327 aiov.iov_base = &pss; 2328 aiov.iov_len = sizeof(pss); 2329 auio.uio_iov = &aiov; 2330 auio.uio_iovcnt = 1; 2331 auio.uio_offset = psstr_addr; 2332 auio.uio_resid = sizeof(pss); 2333 auio.uio_rw = UIO_READ; 2334 UIO_SETUP_SYSSPACE(&auio); 2335 error = uvm_io(&vmspace->vm_map, &auio); 2336 if (error) 2337 goto done; 2338 2339 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2340 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2341 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2342 *oldlenp = sizeof(nargv); 2343 goto done; 2344 } 2345 /* 2346 * Now read the address of the argument vector. 2347 */ 2348 switch (type) { 2349 case KERN_PROC_ARGV: 2350 /* FALLTHROUGH */ 2351 case KERN_PROC_ENV: 2352 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2353 break; 2354 default: 2355 return (EINVAL); 2356 } 2357 2358 #ifdef COMPAT_NETBSD32 2359 if (p->p_flag & P_32) 2360 len = sizeof(netbsd32_charp) * nargv; 2361 else 2362 #endif 2363 len = sizeof(char *) * nargv; 2364 2365 argv = malloc(len, M_TEMP, M_WAITOK); 2366 2367 aiov.iov_base = argv; 2368 aiov.iov_len = len; 2369 auio.uio_iov = &aiov; 2370 auio.uio_iovcnt = 1; 2371 auio.uio_offset = (off_t)(unsigned long)tmp; 2372 auio.uio_resid = len; 2373 auio.uio_rw = UIO_READ; 2374 UIO_SETUP_SYSSPACE(&auio); 2375 error = uvm_io(&vmspace->vm_map, &auio); 2376 if (error) 2377 goto done; 2378 2379 /* 2380 * Now copy each string. 2381 */ 2382 len = 0; /* bytes written to user buffer */ 2383 for (i = 0; i < nargv; i++) { 2384 int finished = 0; 2385 vaddr_t base; 2386 size_t xlen; 2387 int j; 2388 2389 #ifdef COMPAT_NETBSD32 2390 if (p->p_flag & P_32) { 2391 netbsd32_charp *argv32; 2392 2393 argv32 = (netbsd32_charp *)argv; 2394 2395 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2396 } else 2397 #endif 2398 base = (vaddr_t)argv[i]; 2399 2400 while (!finished) { 2401 xlen = PAGE_SIZE - (base & PAGE_MASK); 2402 2403 aiov.iov_base = arg; 2404 aiov.iov_len = PAGE_SIZE; 2405 auio.uio_iov = &aiov; 2406 auio.uio_iovcnt = 1; 2407 auio.uio_offset = base; 2408 auio.uio_resid = xlen; 2409 auio.uio_rw = UIO_READ; 2410 UIO_SETUP_SYSSPACE(&auio); 2411 error = uvm_io(&vmspace->vm_map, &auio); 2412 if (error) 2413 goto done; 2414 2415 /* Look for the end of the string */ 2416 for (j = 0; j < xlen; j++) { 2417 if (arg[j] == '\0') { 2418 xlen = j + 1; 2419 finished = 1; 2420 break; 2421 } 2422 } 2423 2424 /* Check for user buffer overflow */ 2425 if (len + xlen > *oldlenp) { 2426 finished = 1; 2427 if (len > *oldlenp) 2428 xlen = 0; 2429 else 2430 xlen = *oldlenp - len; 2431 } 2432 2433 /* Copyout the page */ 2434 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2435 if (error) 2436 goto done; 2437 2438 len += xlen; 2439 base += xlen; 2440 } 2441 } 2442 *oldlenp = len; 2443 2444 done: 2445 if (argv != NULL) 2446 free(argv, M_TEMP); 2447 2448 uvmspace_free(vmspace); 2449 2450 free(arg, M_TEMP); 2451 return error; 2452 2453 out_locked: 2454 rw_exit(&proclist_lock); 2455 return error; 2456 } 2457 2458 static int 2459 sysctl_security_setidcore(SYSCTLFN_ARGS) 2460 { 2461 int newsize, error; 2462 struct sysctlnode node; 2463 2464 node = *rnode; 2465 node.sysctl_data = &newsize; 2466 newsize = *(int *)rnode->sysctl_data; 2467 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2468 if (error || newp == NULL) 2469 return error; 2470 2471 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2472 0, NULL, NULL, NULL)) 2473 return (EPERM); 2474 2475 *(int *)rnode->sysctl_data = newsize; 2476 2477 return 0; 2478 } 2479 2480 static int 2481 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2482 { 2483 int error; 2484 char *newsetidcorename; 2485 struct sysctlnode node; 2486 2487 newsetidcorename = PNBUF_GET(); 2488 node = *rnode; 2489 node.sysctl_data = newsetidcorename; 2490 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2491 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2492 if (error || newp == NULL) { 2493 goto out; 2494 } 2495 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2496 0, NULL, NULL, NULL)) { 2497 error = EPERM; 2498 goto out; 2499 } 2500 if (strlen(newsetidcorename) == 0) { 2501 error = EINVAL; 2502 goto out; 2503 } 2504 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2505 out: 2506 PNBUF_PUT(newsetidcorename); 2507 return error; 2508 } 2509 2510 /* 2511 * sysctl helper routine for kern.cp_id node. maps cpus to their 2512 * cpuids. 2513 */ 2514 static int 2515 sysctl_kern_cpid(SYSCTLFN_ARGS) 2516 { 2517 struct sysctlnode node = *rnode; 2518 2519 #ifndef MULTIPROCESSOR 2520 uint64_t id; 2521 2522 if (namelen == 1) { 2523 if (name[0] != 0) 2524 return (ENOENT); 2525 /* 2526 * you're allowed to ask for the zero'th processor 2527 */ 2528 name++; 2529 namelen--; 2530 } 2531 node.sysctl_data = &id; 2532 node.sysctl_size = sizeof(id); 2533 id = cpu_number(); 2534 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2535 2536 #else /* MULTIPROCESSOR */ 2537 uint64_t *cp_id = NULL; 2538 int error, n = sysctl_ncpus(); 2539 struct cpu_info *ci; 2540 CPU_INFO_ITERATOR cii; 2541 2542 /* 2543 * here you may either retrieve a single cpu id or the whole 2544 * set. the size you get back when probing depends on what 2545 * you ask for. 2546 */ 2547 switch (namelen) { 2548 case 0: 2549 node.sysctl_size = n * sizeof(uint64_t); 2550 n = -2; /* ALL */ 2551 break; 2552 case 1: 2553 if (name[0] < 0 || name[0] >= n) 2554 return (ENOENT); /* ENOSUCHPROCESSOR */ 2555 node.sysctl_size = sizeof(uint64_t); 2556 n = name[0]; 2557 /* 2558 * adjust these so that sysctl_lookup() will be happy 2559 */ 2560 name++; 2561 namelen--; 2562 break; 2563 default: 2564 return (EINVAL); 2565 } 2566 2567 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2568 if (cp_id == NULL) 2569 return (ENOMEM); 2570 node.sysctl_data = cp_id; 2571 memset(cp_id, 0, node.sysctl_size); 2572 2573 for (CPU_INFO_FOREACH(cii, ci)) { 2574 if (n <= 0) 2575 cp_id[0] = ci->ci_cpuid; 2576 /* 2577 * if a specific processor was requested and we just 2578 * did it, we're done here 2579 */ 2580 if (n == 0) 2581 break; 2582 /* 2583 * if doing "all", skip to next cp_id slot for next processor 2584 */ 2585 if (n == -2) 2586 cp_id++; 2587 /* 2588 * if we're doing a specific processor, we're one 2589 * processor closer 2590 */ 2591 if (n > 0) 2592 n--; 2593 } 2594 2595 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2596 free(node.sysctl_data, M_TEMP); 2597 return (error); 2598 2599 #endif /* MULTIPROCESSOR */ 2600 } 2601 2602 /* 2603 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2604 * calculate on the fly taking into account integer overflow and the 2605 * current wired count. 2606 */ 2607 static int 2608 sysctl_hw_usermem(SYSCTLFN_ARGS) 2609 { 2610 u_int ui; 2611 u_quad_t uq; 2612 struct sysctlnode node; 2613 2614 node = *rnode; 2615 switch (rnode->sysctl_num) { 2616 case HW_USERMEM: 2617 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2618 ui = UINT_MAX; 2619 else 2620 ui *= PAGE_SIZE; 2621 node.sysctl_data = &ui; 2622 break; 2623 case HW_USERMEM64: 2624 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2625 node.sysctl_data = &uq; 2626 break; 2627 default: 2628 return (EINVAL); 2629 } 2630 2631 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2632 } 2633 2634 /* 2635 * sysctl helper routine for kern.cnmagic node. pulls the old value 2636 * out, encoded, and stuffs the new value in for decoding. 2637 */ 2638 static int 2639 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2640 { 2641 char magic[CNS_LEN]; 2642 int error; 2643 struct sysctlnode node; 2644 2645 if (oldp) 2646 cn_get_magic(magic, CNS_LEN); 2647 node = *rnode; 2648 node.sysctl_data = &magic[0]; 2649 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2650 if (error || newp == NULL) 2651 return (error); 2652 2653 return (cn_set_magic(magic)); 2654 } 2655 2656 static int 2657 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2658 { 2659 int ncpu; 2660 struct sysctlnode node; 2661 2662 ncpu = sysctl_ncpus(); 2663 node = *rnode; 2664 node.sysctl_data = &ncpu; 2665 2666 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2667 } 2668 2669 2670 /* 2671 * ******************************************************************** 2672 * section 3: public helper routines that are used for more than one 2673 * node 2674 * ******************************************************************** 2675 */ 2676 2677 /* 2678 * sysctl helper routine for the kern.root_device node and some ports' 2679 * machdep.root_device nodes. 2680 */ 2681 int 2682 sysctl_root_device(SYSCTLFN_ARGS) 2683 { 2684 struct sysctlnode node; 2685 2686 node = *rnode; 2687 node.sysctl_data = root_device->dv_xname; 2688 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2689 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2690 } 2691 2692 /* 2693 * sysctl helper routine for kern.consdev, dependent on the current 2694 * state of the console. also used for machdep.console_device on some 2695 * ports. 2696 */ 2697 int 2698 sysctl_consdev(SYSCTLFN_ARGS) 2699 { 2700 dev_t consdev; 2701 struct sysctlnode node; 2702 2703 if (cn_tab != NULL) 2704 consdev = cn_tab->cn_dev; 2705 else 2706 consdev = NODEV; 2707 node = *rnode; 2708 node.sysctl_data = &consdev; 2709 node.sysctl_size = sizeof(consdev); 2710 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2711 } 2712 2713 /* 2714 * ******************************************************************** 2715 * section 4: support for some helpers 2716 * ******************************************************************** 2717 */ 2718 2719 /* 2720 * Fill in a kinfo_proc2 structure for the specified process. 2721 */ 2722 static void 2723 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2724 { 2725 struct tty *tp; 2726 struct lwp *l, *l2; 2727 struct timeval ut, st, rt; 2728 sigset_t ss1, ss2; 2729 2730 memset(ki, 0, sizeof(*ki)); 2731 2732 ki->p_paddr = PTRTOUINT64(p); 2733 ki->p_fd = PTRTOUINT64(p->p_fd); 2734 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2735 ki->p_stats = PTRTOUINT64(p->p_stats); 2736 ki->p_limit = PTRTOUINT64(p->p_limit); 2737 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2738 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2739 ki->p_sess = PTRTOUINT64(p->p_session); 2740 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2741 ki->p_ru = PTRTOUINT64(p->p_ru); 2742 2743 ki->p_eflag = 0; 2744 ki->p_exitsig = p->p_exitsig; 2745 2746 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2747 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2748 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2749 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2750 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2751 2752 ki->p_pid = p->p_pid; 2753 if (p->p_pptr) 2754 ki->p_ppid = p->p_pptr->p_pid; 2755 else 2756 ki->p_ppid = 0; 2757 ki->p_sid = p->p_session->s_sid; 2758 ki->p__pgid = p->p_pgrp->pg_id; 2759 2760 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2761 2762 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2763 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2764 ki->p_gid = kauth_cred_getegid(p->p_cred); 2765 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2766 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2767 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2768 2769 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2770 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2771 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0]))); 2772 2773 ki->p_jobc = p->p_pgrp->pg_jobc; 2774 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2775 ki->p_tdev = tp->t_dev; 2776 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2777 ki->p_tsess = PTRTOUINT64(tp->t_session); 2778 } else { 2779 ki->p_tdev = NODEV; 2780 } 2781 2782 ki->p_estcpu = p->p_estcpu; 2783 ki->p_cpticks = p->p_cpticks; 2784 ki->p_pctcpu = p->p_pctcpu; 2785 2786 ki->p_uticks = p->p_uticks; 2787 ki->p_sticks = p->p_sticks; 2788 ki->p_iticks = p->p_iticks; 2789 2790 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2791 ki->p_traceflag = p->p_traceflag; 2792 2793 mutex_enter(&p->p_smutex); 2794 2795 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2796 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2797 2798 ss1 = p->p_sigpend.sp_set; 2799 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2800 /* This is hardly correct, but... */ 2801 sigplusset(&l->l_sigpend.sp_set, &ss1); 2802 sigplusset(&l->l_sigmask, &ss2); 2803 } 2804 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2805 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2806 2807 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2808 ki->p_realstat = p->p_stat; 2809 ki->p_nice = p->p_nice; 2810 2811 ki->p_xstat = p->p_xstat; 2812 ki->p_acflag = p->p_acflag; 2813 2814 strncpy(ki->p_comm, p->p_comm, 2815 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2816 2817 strncpy(ki->p_login, p->p_session->s_login, 2818 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2819 2820 ki->p_nlwps = p->p_nlwps; 2821 ki->p_realflag = ki->p_flag; 2822 2823 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2824 ki->p_vm_rssize = 0; 2825 ki->p_vm_tsize = 0; 2826 ki->p_vm_dsize = 0; 2827 ki->p_vm_ssize = 0; 2828 ki->p_nrlwps = 0; 2829 l = NULL; 2830 } else { 2831 struct vmspace *vm = p->p_vmspace; 2832 int tmp; 2833 2834 ki->p_vm_rssize = vm_resident_count(vm); 2835 ki->p_vm_tsize = vm->vm_tsize; 2836 ki->p_vm_dsize = vm->vm_dsize; 2837 ki->p_vm_ssize = vm->vm_ssize; 2838 2839 /* Pick a "representative" LWP */ 2840 l = proc_representative_lwp(p, &tmp, 1); 2841 lwp_lock(l); 2842 ki->p_nrlwps = tmp; 2843 ki->p_forw = PTRTOUINT64(l->l_forw); 2844 ki->p_back = PTRTOUINT64(l->l_back); 2845 ki->p_addr = PTRTOUINT64(l->l_addr); 2846 ki->p_stat = l->l_stat; 2847 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2848 ki->p_swtime = l->l_swtime; 2849 ki->p_slptime = l->l_slptime; 2850 if (l->l_stat == LSONPROC) 2851 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2852 else 2853 ki->p_schedflags = 0; 2854 ki->p_holdcnt = l->l_holdcnt; 2855 ki->p_priority = l->l_priority; 2856 ki->p_usrpri = l->l_usrpri; 2857 if (l->l_wmesg) 2858 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2859 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2860 lwp_unlock(l); 2861 } 2862 if (p->p_session->s_ttyvp) 2863 ki->p_eflag |= EPROC_CTTY; 2864 if (SESS_LEADER(p)) 2865 ki->p_eflag |= EPROC_SLEADER; 2866 2867 /* XXX Is this double check necessary? */ 2868 if (P_ZOMBIE(p)) { 2869 ki->p_uvalid = 0; 2870 ki->p_rtime_sec = 0; 2871 ki->p_rtime_usec = 0; 2872 } else { 2873 ki->p_uvalid = 1; 2874 2875 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2876 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2877 2878 calcru(p, &ut, &st, NULL, &rt); 2879 ki->p_rtime_sec = rt.tv_sec; 2880 ki->p_rtime_usec = rt.tv_usec; 2881 ki->p_uutime_sec = ut.tv_sec; 2882 ki->p_uutime_usec = ut.tv_usec; 2883 ki->p_ustime_sec = st.tv_sec; 2884 ki->p_ustime_usec = st.tv_usec; 2885 2886 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2887 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2888 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2889 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2890 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2891 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2892 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2893 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2894 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2895 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2896 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2897 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2898 2899 ki->p_uru_nvcsw = 0; 2900 ki->p_uru_nivcsw = 0; 2901 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 2902 ki->p_uru_nvcsw += l->l_nvcsw; 2903 ki->p_uru_nivcsw += l->l_nivcsw; 2904 } 2905 2906 timeradd(&p->p_stats->p_cru.ru_utime, 2907 &p->p_stats->p_cru.ru_stime, &ut); 2908 ki->p_uctime_sec = ut.tv_sec; 2909 ki->p_uctime_usec = ut.tv_usec; 2910 } 2911 #ifdef MULTIPROCESSOR 2912 if (l != NULL) 2913 ki->p_cpuid = l->l_cpu->ci_cpuid; 2914 else 2915 #endif 2916 ki->p_cpuid = KI_NOCPU; 2917 2918 mutex_exit(&p->p_smutex); 2919 } 2920 2921 /* 2922 * Fill in a kinfo_lwp structure for the specified lwp. 2923 */ 2924 static void 2925 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2926 { 2927 2928 kl->l_forw = PTRTOUINT64(l->l_forw); 2929 kl->l_back = PTRTOUINT64(l->l_back); 2930 kl->l_laddr = PTRTOUINT64(l); 2931 kl->l_addr = PTRTOUINT64(l->l_addr); 2932 kl->l_stat = l->l_stat; 2933 kl->l_lid = l->l_lid; 2934 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 2935 2936 kl->l_swtime = l->l_swtime; 2937 kl->l_slptime = l->l_slptime; 2938 if (l->l_stat == LSONPROC) 2939 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2940 else 2941 kl->l_schedflags = 0; 2942 kl->l_holdcnt = l->l_holdcnt; 2943 kl->l_priority = l->l_priority; 2944 kl->l_usrpri = l->l_usrpri; 2945 if (l->l_wmesg) 2946 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2947 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2948 #ifdef MULTIPROCESSOR 2949 kl->l_cpuid = l->l_cpu->ci_cpuid; 2950 #else 2951 kl->l_cpuid = KI_NOCPU; 2952 #endif 2953 } 2954 2955 /* 2956 * Fill in an eproc structure for the specified process. 2957 */ 2958 void 2959 fill_eproc(struct proc *p, struct eproc *ep) 2960 { 2961 struct tty *tp; 2962 struct lwp *l; 2963 2964 ep->e_paddr = p; 2965 ep->e_sess = p->p_session; 2966 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 2967 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 2968 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2969 ep->e_vm.vm_rssize = 0; 2970 ep->e_vm.vm_tsize = 0; 2971 ep->e_vm.vm_dsize = 0; 2972 ep->e_vm.vm_ssize = 0; 2973 /* ep->e_vm.vm_pmap = XXX; */ 2974 } else { 2975 struct vmspace *vm = p->p_vmspace; 2976 2977 ep->e_vm.vm_rssize = vm_resident_count(vm); 2978 ep->e_vm.vm_tsize = vm->vm_tsize; 2979 ep->e_vm.vm_dsize = vm->vm_dsize; 2980 ep->e_vm.vm_ssize = vm->vm_ssize; 2981 2982 /* Pick a "representative" LWP */ 2983 mutex_enter(&p->p_smutex); 2984 l = proc_representative_lwp(p, NULL, 1); 2985 lwp_lock(l); 2986 if (l->l_wmesg) 2987 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2988 lwp_unlock(l); 2989 mutex_exit(&p->p_smutex); 2990 } 2991 if (p->p_pptr) 2992 ep->e_ppid = p->p_pptr->p_pid; 2993 else 2994 ep->e_ppid = 0; 2995 ep->e_pgid = p->p_pgrp->pg_id; 2996 ep->e_sid = ep->e_sess->s_sid; 2997 ep->e_jobc = p->p_pgrp->pg_jobc; 2998 if ((p->p_lflag & PL_CONTROLT) && 2999 (tp = ep->e_sess->s_ttyp)) { 3000 ep->e_tdev = tp->t_dev; 3001 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3002 ep->e_tsess = tp->t_session; 3003 } else 3004 ep->e_tdev = NODEV; 3005 3006 ep->e_xsize = ep->e_xrssize = 0; 3007 ep->e_xccount = ep->e_xswrss = 0; 3008 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3009 if (SESS_LEADER(p)) 3010 ep->e_flag |= EPROC_SLEADER; 3011 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3012 } 3013 3014 u_int 3015 sysctl_map_flags(const u_int *map, u_int word) 3016 { 3017 u_int rv; 3018 3019 for (rv = 0; *map != 0; map += 2) 3020 if ((word & map[0]) != 0) 3021 rv |= map[1]; 3022 3023 return rv; 3024 } 3025
Indexes created Wed Oct 01 15:09:59 GMT 2025