init_sysctl.c revision 1.95
1 /* $NetBSD: init_sysctl.c,v 1.95 2007/02/09 21:55:30 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 1.95 2007/02/09 21:55:30 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 rw_enter(&proclist_lock, RW_READER); 1726 p = p_find(pid, PFIND_LOCKED); 1727 if (p == NULL) { 1728 rw_exit(&proclist_lock); 1729 return (ESRCH); 1730 } 1731 mutex_enter(&p->p_smutex); 1732 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1733 if (buflen >= elem_size && elem_count > 0) { 1734 lwp_lock(l2); 1735 fill_lwp(l2, &klwp); 1736 lwp_unlock(l2); 1737 1738 /* 1739 * Copy out elem_size, but not larger than 1740 * the size of a struct kinfo_proc2. 1741 * 1742 * XXX We should not be holding p_smutex, but 1743 * for now, the buffer is wired. Fix later. 1744 */ 1745 error = dcopyout(l, &klwp, dp, 1746 min(sizeof(klwp), elem_size)); 1747 if (error) 1748 goto cleanup; 1749 dp += elem_size; 1750 buflen -= elem_size; 1751 elem_count--; 1752 } 1753 needed += elem_size; 1754 } 1755 mutex_exit(&p->p_smutex); 1756 rw_exit(&proclist_lock); 1757 1758 if (where != NULL) { 1759 *oldlenp = dp - where; 1760 if (needed > *oldlenp) 1761 return (ENOMEM); 1762 } else { 1763 needed += KERN_LWPSLOP; 1764 *oldlenp = needed; 1765 } 1766 return (0); 1767 cleanup: 1768 return (error); 1769 } 1770 1771 /* 1772 * sysctl helper routine for kern.forkfsleep node. ensures that the 1773 * given value is not too large or two small, and is at least one 1774 * timer tick if not zero. 1775 */ 1776 static int 1777 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1778 { 1779 /* userland sees value in ms, internally is in ticks */ 1780 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1781 int error, timo, lsleep; 1782 struct sysctlnode node; 1783 1784 lsleep = forkfsleep * 1000 / hz; 1785 node = *rnode; 1786 node.sysctl_data = &lsleep; 1787 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1788 if (error || newp == NULL) 1789 return (error); 1790 1791 /* refuse negative values, and overly 'long time' */ 1792 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1793 return (EINVAL); 1794 1795 timo = mstohz(lsleep); 1796 1797 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1798 if (lsleep != 0 && timo == 0) 1799 forkfsleep = 1; 1800 else 1801 forkfsleep = timo; 1802 1803 return (0); 1804 } 1805 1806 /* 1807 * sysctl helper routine for kern.root_partition 1808 */ 1809 static int 1810 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1811 { 1812 int rootpart = DISKPART(rootdev); 1813 struct sysctlnode node = *rnode; 1814 1815 node.sysctl_data = &rootpart; 1816 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1817 } 1818 1819 /* 1820 * sysctl helper function for kern.drivers 1821 */ 1822 static int 1823 sysctl_kern_drivers(SYSCTLFN_ARGS) 1824 { 1825 int error; 1826 size_t buflen; 1827 struct kinfo_drivers kd; 1828 char *start, *where; 1829 const char *dname; 1830 int i; 1831 extern struct devsw_conv *devsw_conv; 1832 extern int max_devsw_convs; 1833 1834 if (newp != NULL || namelen != 0) 1835 return (EINVAL); 1836 1837 start = where = oldp; 1838 buflen = *oldlenp; 1839 if (where == NULL) { 1840 *oldlenp = max_devsw_convs * sizeof kd; 1841 return 0; 1842 } 1843 1844 /* 1845 * An array of kinfo_drivers structures 1846 */ 1847 error = 0; 1848 for (i = 0; i < max_devsw_convs; i++) { 1849 dname = devsw_conv[i].d_name; 1850 if (dname == NULL) 1851 continue; 1852 if (buflen < sizeof kd) { 1853 error = ENOMEM; 1854 break; 1855 } 1856 memset(&kd, 0, sizeof(kd)); 1857 kd.d_bmajor = devsw_conv[i].d_bmajor; 1858 kd.d_cmajor = devsw_conv[i].d_cmajor; 1859 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1860 error = dcopyout(l, &kd, where, sizeof kd); 1861 if (error != 0) 1862 break; 1863 buflen -= sizeof kd; 1864 where += sizeof kd; 1865 } 1866 *oldlenp = where - start; 1867 return error; 1868 } 1869 1870 /* 1871 * sysctl helper function for kern.file2 1872 */ 1873 static int 1874 sysctl_kern_file2(SYSCTLFN_ARGS) 1875 { 1876 struct proc *p; 1877 struct file *fp; 1878 struct filedesc *fd; 1879 struct kinfo_file kf; 1880 char *dp; 1881 u_int i, op; 1882 size_t len, needed, elem_size, out_size; 1883 int error, arg, elem_count; 1884 1885 if (namelen == 1 && name[0] == CTL_QUERY) 1886 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1887 1888 if (namelen != 4) 1889 return (EINVAL); 1890 1891 error = 0; 1892 dp = oldp; 1893 len = (oldp != NULL) ? *oldlenp : 0; 1894 op = name[0]; 1895 arg = name[1]; 1896 elem_size = name[2]; 1897 elem_count = name[3]; 1898 out_size = MIN(sizeof(kf), elem_size); 1899 needed = 0; 1900 1901 if (elem_size < 1 || elem_count < 0) 1902 return (EINVAL); 1903 1904 switch (op) { 1905 case KERN_FILE_BYFILE: 1906 /* 1907 * doesn't use arg so it must be zero 1908 */ 1909 if (arg != 0) 1910 return (EINVAL); 1911 LIST_FOREACH(fp, &filehead, f_list) { 1912 if (kauth_authorize_generic(l->l_cred, 1913 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1914 continue; 1915 if (len >= elem_size && elem_count > 0) { 1916 fill_file(&kf, fp, NULL, 0); 1917 error = dcopyout(l, &kf, dp, out_size); 1918 if (error) 1919 break; 1920 dp += elem_size; 1921 len -= elem_size; 1922 } 1923 if (elem_count > 0) { 1924 needed += elem_size; 1925 if (elem_count != INT_MAX) 1926 elem_count--; 1927 } 1928 } 1929 break; 1930 case KERN_FILE_BYPID: 1931 if (arg < -1) 1932 /* -1 means all processes */ 1933 return (EINVAL); 1934 rw_enter(&proclist_lock, RW_READER); 1935 PROCLIST_FOREACH(p, &allproc) { 1936 if (p->p_stat == SIDL) 1937 /* skip embryonic processes */ 1938 continue; 1939 if (kauth_authorize_process(l->l_cred, 1940 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 1941 continue; 1942 if (arg > 0 && p->p_pid != arg) 1943 /* pick only the one we want */ 1944 /* XXX want 0 to mean "kernel files" */ 1945 continue; 1946 fd = p->p_fd; 1947 for (i = 0; i < fd->fd_nfiles; i++) { 1948 fp = fd->fd_ofiles[i]; 1949 if (fp == NULL || !FILE_IS_USABLE(fp)) 1950 continue; 1951 if (len >= elem_size && elem_count > 0) { 1952 fill_file(&kf, fd->fd_ofiles[i], 1953 p, i); 1954 error = dcopyout(l, &kf, dp, out_size); 1955 if (error) 1956 break; 1957 dp += elem_size; 1958 len -= elem_size; 1959 } 1960 if (elem_count > 0) { 1961 needed += elem_size; 1962 if (elem_count != INT_MAX) 1963 elem_count--; 1964 } 1965 } 1966 } 1967 rw_exit(&proclist_lock); 1968 break; 1969 default: 1970 return (EINVAL); 1971 } 1972 1973 if (oldp == NULL) 1974 needed += KERN_FILESLOP * elem_size; 1975 *oldlenp = needed; 1976 1977 return (error); 1978 } 1979 1980 static void 1981 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 1982 { 1983 1984 memset(kp, 0, sizeof(*kp)); 1985 1986 kp->ki_fileaddr = PTRTOUINT64(fp); 1987 kp->ki_flag = fp->f_flag; 1988 kp->ki_iflags = fp->f_iflags; 1989 kp->ki_ftype = fp->f_type; 1990 kp->ki_count = fp->f_count; 1991 kp->ki_msgcount = fp->f_msgcount; 1992 kp->ki_usecount = fp->f_usecount; 1993 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 1994 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 1995 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 1996 kp->ki_fops = PTRTOUINT64(fp->f_ops); 1997 kp->ki_foffset = fp->f_offset; 1998 kp->ki_fdata = PTRTOUINT64(fp->f_data); 1999 2000 /* vnode information to glue this file to something */ 2001 if (fp->f_type == DTYPE_VNODE) { 2002 struct vnode *vp = (struct vnode *)fp->f_data; 2003 2004 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2005 kp->ki_vsize = vp->v_size; 2006 kp->ki_vtype = vp->v_type; 2007 kp->ki_vtag = vp->v_tag; 2008 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2009 } 2010 2011 /* process information when retrieved via KERN_FILE_BYPID */ 2012 if (p) { 2013 kp->ki_pid = p->p_pid; 2014 kp->ki_fd = i; 2015 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2016 } 2017 } 2018 2019 static int 2020 sysctl_doeproc(SYSCTLFN_ARGS) 2021 { 2022 struct eproc *eproc; 2023 struct kinfo_proc2 *kproc2; 2024 struct kinfo_proc *dp; 2025 struct proc *p; 2026 const struct proclist_desc *pd; 2027 char *where, *dp2; 2028 int type, op, arg; 2029 u_int elem_size, elem_count; 2030 size_t buflen, needed; 2031 int error; 2032 2033 if (namelen == 1 && name[0] == CTL_QUERY) 2034 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2035 2036 dp = oldp; 2037 dp2 = where = oldp; 2038 buflen = where != NULL ? *oldlenp : 0; 2039 error = 0; 2040 needed = 0; 2041 type = rnode->sysctl_num; 2042 2043 if (type == KERN_PROC) { 2044 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2045 return (EINVAL); 2046 op = name[0]; 2047 if (op != KERN_PROC_ALL) 2048 arg = name[1]; 2049 else 2050 arg = 0; /* Quell compiler warning */ 2051 elem_size = elem_count = 0; /* Ditto */ 2052 } else { 2053 if (namelen != 4) 2054 return (EINVAL); 2055 op = name[0]; 2056 arg = name[1]; 2057 elem_size = name[2]; 2058 elem_count = name[3]; 2059 } 2060 2061 if (type == KERN_PROC) { 2062 eproc = malloc(sizeof(*eproc), M_TEMP, M_WAITOK); 2063 kproc2 = NULL; 2064 } else { 2065 eproc = NULL; 2066 kproc2 = malloc(sizeof(*kproc2), M_TEMP, M_WAITOK); 2067 } 2068 rw_enter(&proclist_lock, RW_READER); 2069 2070 pd = proclists; 2071 again: 2072 PROCLIST_FOREACH(p, pd->pd_list) { 2073 /* 2074 * Skip embryonic processes. 2075 */ 2076 if (p->p_stat == SIDL) 2077 continue; 2078 2079 if (kauth_authorize_process(l->l_cred, 2080 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2081 continue; 2082 2083 /* 2084 * TODO - make more efficient (see notes below). 2085 * do by session. 2086 */ 2087 switch (op) { 2088 2089 case KERN_PROC_PID: 2090 /* could do this with just a lookup */ 2091 if (p->p_pid != (pid_t)arg) 2092 continue; 2093 break; 2094 2095 case KERN_PROC_PGRP: 2096 /* could do this by traversing pgrp */ 2097 if (p->p_pgrp->pg_id != (pid_t)arg) 2098 continue; 2099 break; 2100 2101 case KERN_PROC_SESSION: 2102 if (p->p_session->s_sid != (pid_t)arg) 2103 continue; 2104 break; 2105 2106 case KERN_PROC_TTY: 2107 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2108 if ((p->p_lflag & PL_CONTROLT) == 0 || 2109 p->p_session->s_ttyp == NULL || 2110 p->p_session->s_ttyvp != NULL) 2111 continue; 2112 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2113 p->p_session->s_ttyp == NULL) { 2114 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2115 continue; 2116 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2117 continue; 2118 break; 2119 2120 case KERN_PROC_UID: 2121 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2122 continue; 2123 break; 2124 2125 case KERN_PROC_RUID: 2126 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2127 continue; 2128 break; 2129 2130 case KERN_PROC_GID: 2131 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2132 continue; 2133 break; 2134 2135 case KERN_PROC_RGID: 2136 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2137 continue; 2138 break; 2139 2140 case KERN_PROC_ALL: 2141 /* allow everything */ 2142 break; 2143 2144 default: 2145 error = EINVAL; 2146 goto cleanup; 2147 } 2148 if (type == KERN_PROC) { 2149 if (buflen >= sizeof(struct kinfo_proc)) { 2150 fill_eproc(p, eproc); 2151 error = dcopyout(l, p, &dp->kp_proc, 2152 sizeof(struct proc)); 2153 if (error) 2154 goto cleanup; 2155 error = dcopyout(l, eproc, &dp->kp_eproc, 2156 sizeof(*eproc)); 2157 if (error) 2158 goto cleanup; 2159 dp++; 2160 buflen -= sizeof(struct kinfo_proc); 2161 } 2162 needed += sizeof(struct kinfo_proc); 2163 } else { /* KERN_PROC2 */ 2164 if (buflen >= elem_size && elem_count > 0) { 2165 fill_kproc2(p, kproc2); 2166 /* 2167 * Copy out elem_size, but not larger than 2168 * the size of a struct kinfo_proc2. 2169 */ 2170 error = dcopyout(l, kproc2, dp2, 2171 min(sizeof(*kproc2), elem_size)); 2172 if (error) 2173 goto cleanup; 2174 dp2 += elem_size; 2175 buflen -= elem_size; 2176 elem_count--; 2177 } 2178 needed += elem_size; 2179 } 2180 } 2181 pd++; 2182 if (pd->pd_list != NULL) 2183 goto again; 2184 rw_exit(&proclist_lock); 2185 2186 if (where != NULL) { 2187 if (type == KERN_PROC) 2188 *oldlenp = (char *)dp - where; 2189 else 2190 *oldlenp = dp2 - where; 2191 if (needed > *oldlenp) { 2192 error = ENOMEM; 2193 goto out; 2194 } 2195 } else { 2196 needed += KERN_PROCSLOP; 2197 *oldlenp = needed; 2198 } 2199 if (kproc2) 2200 free(kproc2, M_TEMP); 2201 if (eproc) 2202 free(eproc, M_TEMP); 2203 return 0; 2204 cleanup: 2205 rw_exit(&proclist_lock); 2206 out: 2207 if (kproc2) 2208 free(kproc2, M_TEMP); 2209 if (eproc) 2210 free(eproc, M_TEMP); 2211 return error; 2212 } 2213 2214 /* 2215 * sysctl helper routine for kern.proc_args pseudo-subtree. 2216 */ 2217 static int 2218 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2219 { 2220 struct ps_strings pss; 2221 struct proc *p; 2222 size_t len, i; 2223 struct uio auio; 2224 struct iovec aiov; 2225 pid_t pid; 2226 int nargv, type, error; 2227 char *arg; 2228 char **argv = NULL; 2229 char *tmp; 2230 struct vmspace *vmspace; 2231 vaddr_t psstr_addr; 2232 vaddr_t offsetn; 2233 vaddr_t offsetv; 2234 2235 if (namelen == 1 && name[0] == CTL_QUERY) 2236 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2237 2238 if (newp != NULL || namelen != 2) 2239 return (EINVAL); 2240 pid = name[0]; 2241 type = name[1]; 2242 2243 switch (type) { 2244 case KERN_PROC_ARGV: 2245 case KERN_PROC_NARGV: 2246 case KERN_PROC_ENV: 2247 case KERN_PROC_NENV: 2248 /* ok */ 2249 break; 2250 default: 2251 return (EINVAL); 2252 } 2253 2254 rw_enter(&proclist_lock, RW_READER); 2255 2256 /* check pid */ 2257 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2258 error = EINVAL; 2259 goto out_locked; 2260 } 2261 2262 error = kauth_authorize_process(l->l_cred, 2263 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2264 if (error) { 2265 goto out_locked; 2266 } 2267 2268 /* only root or same user change look at the environment */ 2269 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2270 if (kauth_authorize_generic(l->l_cred, KAUTH_GENERIC_ISSUSER, 2271 NULL) != 0) { 2272 if (kauth_cred_getuid(l->l_cred) != 2273 kauth_cred_getuid(p->p_cred) || 2274 kauth_cred_getuid(l->l_cred) != 2275 kauth_cred_getsvuid(p->p_cred)) { 2276 error = EPERM; 2277 goto out_locked; 2278 } 2279 } 2280 } 2281 2282 if (oldp == NULL) { 2283 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2284 *oldlenp = sizeof (int); 2285 else 2286 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2287 error = 0; 2288 goto out_locked; 2289 } 2290 2291 /* 2292 * Zombies don't have a stack, so we can't read their psstrings. 2293 * System processes also don't have a user stack. 2294 */ 2295 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) { 2296 error = EINVAL; 2297 goto out_locked; 2298 } 2299 2300 /* 2301 * Lock the process down in memory. 2302 */ 2303 /* XXXCDC: how should locking work here? */ 2304 if ((l->l_flag & L_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2305 error = EFAULT; 2306 goto out_locked; 2307 } 2308 2309 psstr_addr = (vaddr_t)p->p_psstr; 2310 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2311 offsetn = p->p_psnargv; 2312 offsetv = p->p_psargv; 2313 } else { 2314 offsetn = p->p_psnenv; 2315 offsetv = p->p_psenv; 2316 } 2317 vmspace = p->p_vmspace; 2318 vmspace->vm_refcnt++; /* XXX */ 2319 2320 rw_exit(&proclist_lock); 2321 2322 /* 2323 * Allocate a temporary buffer to hold the arguments. 2324 */ 2325 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2326 2327 /* 2328 * Read in the ps_strings structure. 2329 */ 2330 aiov.iov_base = &pss; 2331 aiov.iov_len = sizeof(pss); 2332 auio.uio_iov = &aiov; 2333 auio.uio_iovcnt = 1; 2334 auio.uio_offset = psstr_addr; 2335 auio.uio_resid = sizeof(pss); 2336 auio.uio_rw = UIO_READ; 2337 UIO_SETUP_SYSSPACE(&auio); 2338 error = uvm_io(&vmspace->vm_map, &auio); 2339 if (error) 2340 goto done; 2341 2342 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2343 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2344 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2345 *oldlenp = sizeof(nargv); 2346 goto done; 2347 } 2348 /* 2349 * Now read the address of the argument vector. 2350 */ 2351 switch (type) { 2352 case KERN_PROC_ARGV: 2353 /* FALLTHROUGH */ 2354 case KERN_PROC_ENV: 2355 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2356 break; 2357 default: 2358 return (EINVAL); 2359 } 2360 2361 #ifdef COMPAT_NETBSD32 2362 if (p->p_flag & P_32) 2363 len = sizeof(netbsd32_charp) * nargv; 2364 else 2365 #endif 2366 len = sizeof(char *) * nargv; 2367 2368 argv = malloc(len, M_TEMP, M_WAITOK); 2369 2370 aiov.iov_base = argv; 2371 aiov.iov_len = len; 2372 auio.uio_iov = &aiov; 2373 auio.uio_iovcnt = 1; 2374 auio.uio_offset = (off_t)(unsigned long)tmp; 2375 auio.uio_resid = len; 2376 auio.uio_rw = UIO_READ; 2377 UIO_SETUP_SYSSPACE(&auio); 2378 error = uvm_io(&vmspace->vm_map, &auio); 2379 if (error) 2380 goto done; 2381 2382 /* 2383 * Now copy each string. 2384 */ 2385 len = 0; /* bytes written to user buffer */ 2386 for (i = 0; i < nargv; i++) { 2387 int finished = 0; 2388 vaddr_t base; 2389 size_t xlen; 2390 int j; 2391 2392 #ifdef COMPAT_NETBSD32 2393 if (p->p_flag & P_32) { 2394 netbsd32_charp *argv32; 2395 2396 argv32 = (netbsd32_charp *)argv; 2397 2398 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2399 } else 2400 #endif 2401 base = (vaddr_t)argv[i]; 2402 2403 while (!finished) { 2404 xlen = PAGE_SIZE - (base & PAGE_MASK); 2405 2406 aiov.iov_base = arg; 2407 aiov.iov_len = PAGE_SIZE; 2408 auio.uio_iov = &aiov; 2409 auio.uio_iovcnt = 1; 2410 auio.uio_offset = base; 2411 auio.uio_resid = xlen; 2412 auio.uio_rw = UIO_READ; 2413 UIO_SETUP_SYSSPACE(&auio); 2414 error = uvm_io(&vmspace->vm_map, &auio); 2415 if (error) 2416 goto done; 2417 2418 /* Look for the end of the string */ 2419 for (j = 0; j < xlen; j++) { 2420 if (arg[j] == '\0') { 2421 xlen = j + 1; 2422 finished = 1; 2423 break; 2424 } 2425 } 2426 2427 /* Check for user buffer overflow */ 2428 if (len + xlen > *oldlenp) { 2429 finished = 1; 2430 if (len > *oldlenp) 2431 xlen = 0; 2432 else 2433 xlen = *oldlenp - len; 2434 } 2435 2436 /* Copyout the page */ 2437 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2438 if (error) 2439 goto done; 2440 2441 len += xlen; 2442 base += xlen; 2443 } 2444 } 2445 *oldlenp = len; 2446 2447 done: 2448 if (argv != NULL) 2449 free(argv, M_TEMP); 2450 2451 uvmspace_free(vmspace); 2452 2453 free(arg, M_TEMP); 2454 return error; 2455 2456 out_locked: 2457 rw_exit(&proclist_lock); 2458 return error; 2459 } 2460 2461 static int 2462 sysctl_security_setidcore(SYSCTLFN_ARGS) 2463 { 2464 int newsize, error; 2465 struct sysctlnode node; 2466 2467 node = *rnode; 2468 node.sysctl_data = &newsize; 2469 newsize = *(int *)rnode->sysctl_data; 2470 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2471 if (error || newp == NULL) 2472 return error; 2473 2474 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2475 0, NULL, NULL, NULL)) 2476 return (EPERM); 2477 2478 *(int *)rnode->sysctl_data = newsize; 2479 2480 return 0; 2481 } 2482 2483 static int 2484 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2485 { 2486 int error; 2487 char *newsetidcorename; 2488 struct sysctlnode node; 2489 2490 newsetidcorename = PNBUF_GET(); 2491 node = *rnode; 2492 node.sysctl_data = newsetidcorename; 2493 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2494 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2495 if (error || newp == NULL) { 2496 goto out; 2497 } 2498 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2499 0, NULL, NULL, NULL)) { 2500 error = EPERM; 2501 goto out; 2502 } 2503 if (strlen(newsetidcorename) == 0) { 2504 error = EINVAL; 2505 goto out; 2506 } 2507 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2508 out: 2509 PNBUF_PUT(newsetidcorename); 2510 return error; 2511 } 2512 2513 /* 2514 * sysctl helper routine for kern.cp_id node. maps cpus to their 2515 * cpuids. 2516 */ 2517 static int 2518 sysctl_kern_cpid(SYSCTLFN_ARGS) 2519 { 2520 struct sysctlnode node = *rnode; 2521 2522 #ifndef MULTIPROCESSOR 2523 uint64_t id; 2524 2525 if (namelen == 1) { 2526 if (name[0] != 0) 2527 return (ENOENT); 2528 /* 2529 * you're allowed to ask for the zero'th processor 2530 */ 2531 name++; 2532 namelen--; 2533 } 2534 node.sysctl_data = &id; 2535 node.sysctl_size = sizeof(id); 2536 id = cpu_number(); 2537 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2538 2539 #else /* MULTIPROCESSOR */ 2540 uint64_t *cp_id = NULL; 2541 int error, n = sysctl_ncpus(); 2542 struct cpu_info *ci; 2543 CPU_INFO_ITERATOR cii; 2544 2545 /* 2546 * here you may either retrieve a single cpu id or the whole 2547 * set. the size you get back when probing depends on what 2548 * you ask for. 2549 */ 2550 switch (namelen) { 2551 case 0: 2552 node.sysctl_size = n * sizeof(uint64_t); 2553 n = -2; /* ALL */ 2554 break; 2555 case 1: 2556 if (name[0] < 0 || name[0] >= n) 2557 return (ENOENT); /* ENOSUCHPROCESSOR */ 2558 node.sysctl_size = sizeof(uint64_t); 2559 n = name[0]; 2560 /* 2561 * adjust these so that sysctl_lookup() will be happy 2562 */ 2563 name++; 2564 namelen--; 2565 break; 2566 default: 2567 return (EINVAL); 2568 } 2569 2570 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2571 if (cp_id == NULL) 2572 return (ENOMEM); 2573 node.sysctl_data = cp_id; 2574 memset(cp_id, 0, node.sysctl_size); 2575 2576 for (CPU_INFO_FOREACH(cii, ci)) { 2577 if (n <= 0) 2578 cp_id[0] = ci->ci_cpuid; 2579 /* 2580 * if a specific processor was requested and we just 2581 * did it, we're done here 2582 */ 2583 if (n == 0) 2584 break; 2585 /* 2586 * if doing "all", skip to next cp_id slot for next processor 2587 */ 2588 if (n == -2) 2589 cp_id++; 2590 /* 2591 * if we're doing a specific processor, we're one 2592 * processor closer 2593 */ 2594 if (n > 0) 2595 n--; 2596 } 2597 2598 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2599 free(node.sysctl_data, M_TEMP); 2600 return (error); 2601 2602 #endif /* MULTIPROCESSOR */ 2603 } 2604 2605 /* 2606 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2607 * calculate on the fly taking into account integer overflow and the 2608 * current wired count. 2609 */ 2610 static int 2611 sysctl_hw_usermem(SYSCTLFN_ARGS) 2612 { 2613 u_int ui; 2614 u_quad_t uq; 2615 struct sysctlnode node; 2616 2617 node = *rnode; 2618 switch (rnode->sysctl_num) { 2619 case HW_USERMEM: 2620 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2621 ui = UINT_MAX; 2622 else 2623 ui *= PAGE_SIZE; 2624 node.sysctl_data = &ui; 2625 break; 2626 case HW_USERMEM64: 2627 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2628 node.sysctl_data = &uq; 2629 break; 2630 default: 2631 return (EINVAL); 2632 } 2633 2634 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2635 } 2636 2637 /* 2638 * sysctl helper routine for kern.cnmagic node. pulls the old value 2639 * out, encoded, and stuffs the new value in for decoding. 2640 */ 2641 static int 2642 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2643 { 2644 char magic[CNS_LEN]; 2645 int error; 2646 struct sysctlnode node; 2647 2648 if (oldp) 2649 cn_get_magic(magic, CNS_LEN); 2650 node = *rnode; 2651 node.sysctl_data = &magic[0]; 2652 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2653 if (error || newp == NULL) 2654 return (error); 2655 2656 return (cn_set_magic(magic)); 2657 } 2658 2659 static int 2660 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2661 { 2662 int ncpu; 2663 struct sysctlnode node; 2664 2665 ncpu = sysctl_ncpus(); 2666 node = *rnode; 2667 node.sysctl_data = &ncpu; 2668 2669 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2670 } 2671 2672 2673 /* 2674 * ******************************************************************** 2675 * section 3: public helper routines that are used for more than one 2676 * node 2677 * ******************************************************************** 2678 */ 2679 2680 /* 2681 * sysctl helper routine for the kern.root_device node and some ports' 2682 * machdep.root_device nodes. 2683 */ 2684 int 2685 sysctl_root_device(SYSCTLFN_ARGS) 2686 { 2687 struct sysctlnode node; 2688 2689 node = *rnode; 2690 node.sysctl_data = root_device->dv_xname; 2691 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2692 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2693 } 2694 2695 /* 2696 * sysctl helper routine for kern.consdev, dependent on the current 2697 * state of the console. also used for machdep.console_device on some 2698 * ports. 2699 */ 2700 int 2701 sysctl_consdev(SYSCTLFN_ARGS) 2702 { 2703 dev_t consdev; 2704 struct sysctlnode node; 2705 2706 if (cn_tab != NULL) 2707 consdev = cn_tab->cn_dev; 2708 else 2709 consdev = NODEV; 2710 node = *rnode; 2711 node.sysctl_data = &consdev; 2712 node.sysctl_size = sizeof(consdev); 2713 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2714 } 2715 2716 /* 2717 * ******************************************************************** 2718 * section 4: support for some helpers 2719 * ******************************************************************** 2720 */ 2721 2722 /* 2723 * Fill in a kinfo_proc2 structure for the specified process. 2724 */ 2725 static void 2726 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2727 { 2728 struct tty *tp; 2729 struct lwp *l, *l2; 2730 struct timeval ut, st, rt; 2731 sigset_t ss1, ss2; 2732 2733 memset(ki, 0, sizeof(*ki)); 2734 2735 ki->p_paddr = PTRTOUINT64(p); 2736 ki->p_fd = PTRTOUINT64(p->p_fd); 2737 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2738 ki->p_stats = PTRTOUINT64(p->p_stats); 2739 ki->p_limit = PTRTOUINT64(p->p_limit); 2740 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2741 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2742 ki->p_sess = PTRTOUINT64(p->p_session); 2743 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2744 ki->p_ru = PTRTOUINT64(p->p_ru); 2745 2746 ki->p_eflag = 0; 2747 ki->p_exitsig = p->p_exitsig; 2748 2749 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2750 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2751 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2752 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2753 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2754 2755 ki->p_pid = p->p_pid; 2756 if (p->p_pptr) 2757 ki->p_ppid = p->p_pptr->p_pid; 2758 else 2759 ki->p_ppid = 0; 2760 ki->p_sid = p->p_session->s_sid; 2761 ki->p__pgid = p->p_pgrp->pg_id; 2762 2763 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2764 2765 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2766 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2767 ki->p_gid = kauth_cred_getegid(p->p_cred); 2768 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2769 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2770 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2771 2772 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2773 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2774 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0]))); 2775 2776 ki->p_jobc = p->p_pgrp->pg_jobc; 2777 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2778 ki->p_tdev = tp->t_dev; 2779 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2780 ki->p_tsess = PTRTOUINT64(tp->t_session); 2781 } else { 2782 ki->p_tdev = NODEV; 2783 } 2784 2785 ki->p_estcpu = p->p_estcpu; 2786 ki->p_cpticks = p->p_cpticks; 2787 ki->p_pctcpu = p->p_pctcpu; 2788 2789 ki->p_uticks = p->p_uticks; 2790 ki->p_sticks = p->p_sticks; 2791 ki->p_iticks = p->p_iticks; 2792 2793 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2794 ki->p_traceflag = p->p_traceflag; 2795 2796 mutex_enter(&p->p_smutex); 2797 2798 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2799 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2800 2801 ss1 = p->p_sigpend.sp_set; 2802 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2803 /* This is hardly correct, but... */ 2804 sigplusset(&l->l_sigpend.sp_set, &ss1); 2805 sigplusset(&l->l_sigmask, &ss2); 2806 } 2807 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2808 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2809 2810 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2811 ki->p_realstat = p->p_stat; 2812 ki->p_nice = p->p_nice; 2813 2814 ki->p_xstat = p->p_xstat; 2815 ki->p_acflag = p->p_acflag; 2816 2817 strncpy(ki->p_comm, p->p_comm, 2818 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2819 2820 strncpy(ki->p_login, p->p_session->s_login, 2821 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2822 2823 ki->p_nlwps = p->p_nlwps; 2824 ki->p_realflag = ki->p_flag; 2825 2826 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2827 ki->p_vm_rssize = 0; 2828 ki->p_vm_tsize = 0; 2829 ki->p_vm_dsize = 0; 2830 ki->p_vm_ssize = 0; 2831 ki->p_nrlwps = 0; 2832 l = NULL; 2833 } else { 2834 struct vmspace *vm = p->p_vmspace; 2835 int tmp; 2836 2837 ki->p_vm_rssize = vm_resident_count(vm); 2838 ki->p_vm_tsize = vm->vm_tsize; 2839 ki->p_vm_dsize = vm->vm_dsize; 2840 ki->p_vm_ssize = vm->vm_ssize; 2841 2842 /* Pick a "representative" LWP */ 2843 l = proc_representative_lwp(p, &tmp, 1); 2844 lwp_lock(l); 2845 ki->p_nrlwps = tmp; 2846 ki->p_forw = PTRTOUINT64(l->l_forw); 2847 ki->p_back = PTRTOUINT64(l->l_back); 2848 ki->p_addr = PTRTOUINT64(l->l_addr); 2849 ki->p_stat = l->l_stat; 2850 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2851 ki->p_swtime = l->l_swtime; 2852 ki->p_slptime = l->l_slptime; 2853 if (l->l_stat == LSONPROC) 2854 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2855 else 2856 ki->p_schedflags = 0; 2857 ki->p_holdcnt = l->l_holdcnt; 2858 ki->p_priority = l->l_priority; 2859 ki->p_usrpri = l->l_usrpri; 2860 if (l->l_wmesg) 2861 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2862 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2863 lwp_unlock(l); 2864 } 2865 if (p->p_session->s_ttyvp) 2866 ki->p_eflag |= EPROC_CTTY; 2867 if (SESS_LEADER(p)) 2868 ki->p_eflag |= EPROC_SLEADER; 2869 2870 /* XXX Is this double check necessary? */ 2871 if (P_ZOMBIE(p)) { 2872 ki->p_uvalid = 0; 2873 ki->p_rtime_sec = 0; 2874 ki->p_rtime_usec = 0; 2875 } else { 2876 ki->p_uvalid = 1; 2877 2878 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2879 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2880 2881 calcru(p, &ut, &st, NULL, &rt); 2882 ki->p_rtime_sec = rt.tv_sec; 2883 ki->p_rtime_usec = rt.tv_usec; 2884 ki->p_uutime_sec = ut.tv_sec; 2885 ki->p_uutime_usec = ut.tv_usec; 2886 ki->p_ustime_sec = st.tv_sec; 2887 ki->p_ustime_usec = st.tv_usec; 2888 2889 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2890 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2891 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2892 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2893 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2894 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2895 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2896 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2897 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2898 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2899 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2900 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2901 2902 ki->p_uru_nvcsw = 0; 2903 ki->p_uru_nivcsw = 0; 2904 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 2905 ki->p_uru_nvcsw += l->l_nvcsw; 2906 ki->p_uru_nivcsw += l->l_nivcsw; 2907 } 2908 2909 timeradd(&p->p_stats->p_cru.ru_utime, 2910 &p->p_stats->p_cru.ru_stime, &ut); 2911 ki->p_uctime_sec = ut.tv_sec; 2912 ki->p_uctime_usec = ut.tv_usec; 2913 } 2914 #ifdef MULTIPROCESSOR 2915 if (l != NULL) 2916 ki->p_cpuid = l->l_cpu->ci_cpuid; 2917 else 2918 #endif 2919 ki->p_cpuid = KI_NOCPU; 2920 2921 mutex_exit(&p->p_smutex); 2922 } 2923 2924 /* 2925 * Fill in a kinfo_lwp structure for the specified lwp. 2926 */ 2927 static void 2928 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2929 { 2930 2931 kl->l_forw = PTRTOUINT64(l->l_forw); 2932 kl->l_back = PTRTOUINT64(l->l_back); 2933 kl->l_laddr = PTRTOUINT64(l); 2934 kl->l_addr = PTRTOUINT64(l->l_addr); 2935 kl->l_stat = l->l_stat; 2936 kl->l_lid = l->l_lid; 2937 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 2938 2939 kl->l_swtime = l->l_swtime; 2940 kl->l_slptime = l->l_slptime; 2941 if (l->l_stat == LSONPROC) 2942 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2943 else 2944 kl->l_schedflags = 0; 2945 kl->l_holdcnt = l->l_holdcnt; 2946 kl->l_priority = l->l_priority; 2947 kl->l_usrpri = l->l_usrpri; 2948 if (l->l_wmesg) 2949 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2950 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2951 #ifdef MULTIPROCESSOR 2952 kl->l_cpuid = l->l_cpu->ci_cpuid; 2953 #else 2954 kl->l_cpuid = KI_NOCPU; 2955 #endif 2956 } 2957 2958 /* 2959 * Fill in an eproc structure for the specified process. 2960 */ 2961 void 2962 fill_eproc(struct proc *p, struct eproc *ep) 2963 { 2964 struct tty *tp; 2965 struct lwp *l; 2966 2967 ep->e_paddr = p; 2968 ep->e_sess = p->p_session; 2969 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 2970 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 2971 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2972 ep->e_vm.vm_rssize = 0; 2973 ep->e_vm.vm_tsize = 0; 2974 ep->e_vm.vm_dsize = 0; 2975 ep->e_vm.vm_ssize = 0; 2976 /* ep->e_vm.vm_pmap = XXX; */ 2977 } else { 2978 struct vmspace *vm = p->p_vmspace; 2979 2980 ep->e_vm.vm_rssize = vm_resident_count(vm); 2981 ep->e_vm.vm_tsize = vm->vm_tsize; 2982 ep->e_vm.vm_dsize = vm->vm_dsize; 2983 ep->e_vm.vm_ssize = vm->vm_ssize; 2984 2985 /* Pick a "representative" LWP */ 2986 mutex_enter(&p->p_smutex); 2987 l = proc_representative_lwp(p, NULL, 1); 2988 lwp_lock(l); 2989 if (l->l_wmesg) 2990 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2991 lwp_unlock(l); 2992 mutex_exit(&p->p_smutex); 2993 } 2994 if (p->p_pptr) 2995 ep->e_ppid = p->p_pptr->p_pid; 2996 else 2997 ep->e_ppid = 0; 2998 ep->e_pgid = p->p_pgrp->pg_id; 2999 ep->e_sid = ep->e_sess->s_sid; 3000 ep->e_jobc = p->p_pgrp->pg_jobc; 3001 if ((p->p_lflag & PL_CONTROLT) && 3002 (tp = ep->e_sess->s_ttyp)) { 3003 ep->e_tdev = tp->t_dev; 3004 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3005 ep->e_tsess = tp->t_session; 3006 } else 3007 ep->e_tdev = NODEV; 3008 3009 ep->e_xsize = ep->e_xrssize = 0; 3010 ep->e_xccount = ep->e_xswrss = 0; 3011 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3012 if (SESS_LEADER(p)) 3013 ep->e_flag |= EPROC_SLEADER; 3014 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3015 } 3016 3017 u_int 3018 sysctl_map_flags(const u_int *map, u_int word) 3019 { 3020 u_int rv; 3021 3022 for (rv = 0; *map != 0; map += 2) 3023 if ((word & map[0]) != 0) 3024 rv |= map[1]; 3025 3026 return rv; 3027 } 3028
Indexes created Wed Sep 24 05:09:52 GMT 2025