1 /* $NetBSD: init_sysctl.c,v 1.114 2007/12/10 18:58:02 elad 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 1.114 2007/12/10 18:58:02 elad 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 "pty.h" 47 #include "rnd.h" 48 49 #include <sys/types.h> 50 #include <sys/param.h> 51 #include <sys/sysctl.h> 52 #include <sys/cpu.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 #include <sys/ktrace.h> 77 78 #ifdef COMPAT_NETBSD32 79 #include <compat/netbsd32/netbsd32.h> 80 #endif 81 82 #include <sys/cpu.h> 83 84 /* XXX this should not be here */ 85 int security_setidcore_dump; 86 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 87 uid_t security_setidcore_owner = 0; 88 gid_t security_setidcore_group = 0; 89 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 90 91 static const u_int sysctl_flagmap[] = { 92 PK_ADVLOCK, P_ADVLOCK, 93 PK_EXEC, P_EXEC, 94 PK_NOCLDWAIT, P_NOCLDWAIT, 95 PK_32, P_32, 96 PK_CLDSIGIGN, P_CLDSIGIGN, 97 PK_PAXMPROTECT, P_PAXMPROTECT, 98 PK_PAXNOMPROTECT, P_PAXNOMPROTECT, 99 PK_SYSTRACE, P_SYSTRACE, 100 PK_SUGID, P_SUGID, 101 0 102 }; 103 104 static const u_int sysctl_sflagmap[] = { 105 PS_NOCLDSTOP, P_NOCLDSTOP, 106 PS_PPWAIT, P_PPWAIT, 107 PS_WEXIT, P_WEXIT, 108 PS_STOPFORK, P_STOPFORK, 109 PS_STOPEXEC, P_STOPEXEC, 110 PS_STOPEXIT, P_STOPEXIT, 111 0 112 }; 113 114 static const u_int sysctl_slflagmap[] = { 115 PSL_TRACED, P_TRACED, 116 PSL_FSTRACE, P_FSTRACE, 117 PSL_CHTRACED, P_CHTRACED, 118 PSL_SYSCALL, P_SYSCALL, 119 0 120 }; 121 122 static const u_int sysctl_lflagmap[] = { 123 PL_CONTROLT, P_CONTROLT, 124 0 125 }; 126 127 static const u_int sysctl_stflagmap[] = { 128 PST_PROFIL, P_PROFIL, 129 0 130 131 }; 132 133 static const u_int sysctl_lwpflagmap[] = { 134 LW_INMEM, P_INMEM, 135 LW_SINTR, P_SINTR, 136 LW_SYSTEM, P_SYSTEM, 137 0 138 }; 139 140 static const u_int sysctl_lwpprflagmap[] = { 141 LPR_DETACHED, L_DETACHED, 142 0 143 }; 144 145 146 /* 147 * try over estimating by 5 procs/lwps 148 */ 149 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 150 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 151 152 static int dcopyout(struct lwp *, const void *, void *, size_t); 153 154 static int 155 dcopyout(l, kaddr, uaddr, len) 156 struct lwp *l; 157 const void *kaddr; 158 void *uaddr; 159 size_t len; 160 { 161 int error; 162 163 error = copyout(kaddr, uaddr, len); 164 ktrmibio(-1, UIO_READ, uaddr, len, error); 165 166 return error; 167 } 168 169 #ifdef DIAGNOSTIC 170 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 171 #endif 172 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 173 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 174 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 175 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 176 static int sysctl_setlen(SYSCTLFN_PROTO); 177 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 178 static int sysctl_kern_file(SYSCTLFN_PROTO); 179 static int sysctl_msgbuf(SYSCTLFN_PROTO); 180 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 181 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 182 #if NPTY > 0 183 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 184 #endif /* NPTY > 0 */ 185 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 186 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 187 static int sysctl_kern_arnd(SYSCTLFN_PROTO); 188 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 189 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 190 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 191 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 192 static int sysctl_kern_file2(SYSCTLFN_PROTO); 193 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 194 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 195 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 196 static int sysctl_doeproc(SYSCTLFN_PROTO); 197 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 198 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 199 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 200 201 static u_int sysctl_map_flags(const u_int *, u_int); 202 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 203 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 204 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 205 int); 206 207 /* 208 * ******************************************************************** 209 * section 1: setup routines 210 * ******************************************************************** 211 * These functions are stuffed into a link set for sysctl setup 212 * functions. They're never called or referenced from anywhere else. 213 * ******************************************************************** 214 */ 215 216 /* 217 * sets up the base nodes... 218 */ 219 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 220 { 221 222 sysctl_createv(clog, 0, NULL, NULL, 223 CTLFLAG_PERMANENT, 224 CTLTYPE_NODE, "kern", 225 SYSCTL_DESCR("High kernel"), 226 NULL, 0, NULL, 0, 227 CTL_KERN, CTL_EOL); 228 sysctl_createv(clog, 0, NULL, NULL, 229 CTLFLAG_PERMANENT, 230 CTLTYPE_NODE, "vm", 231 SYSCTL_DESCR("Virtual memory"), 232 NULL, 0, NULL, 0, 233 CTL_VM, CTL_EOL); 234 sysctl_createv(clog, 0, NULL, NULL, 235 CTLFLAG_PERMANENT, 236 CTLTYPE_NODE, "vfs", 237 SYSCTL_DESCR("Filesystem"), 238 NULL, 0, NULL, 0, 239 CTL_VFS, CTL_EOL); 240 sysctl_createv(clog, 0, NULL, NULL, 241 CTLFLAG_PERMANENT, 242 CTLTYPE_NODE, "net", 243 SYSCTL_DESCR("Networking"), 244 NULL, 0, NULL, 0, 245 CTL_NET, CTL_EOL); 246 sysctl_createv(clog, 0, NULL, NULL, 247 CTLFLAG_PERMANENT, 248 CTLTYPE_NODE, "debug", 249 SYSCTL_DESCR("Debugging"), 250 NULL, 0, NULL, 0, 251 CTL_DEBUG, CTL_EOL); 252 sysctl_createv(clog, 0, NULL, NULL, 253 CTLFLAG_PERMANENT, 254 CTLTYPE_NODE, "hw", 255 SYSCTL_DESCR("Generic CPU, I/O"), 256 NULL, 0, NULL, 0, 257 CTL_HW, CTL_EOL); 258 sysctl_createv(clog, 0, NULL, NULL, 259 CTLFLAG_PERMANENT, 260 CTLTYPE_NODE, "machdep", 261 SYSCTL_DESCR("Machine dependent"), 262 NULL, 0, NULL, 0, 263 CTL_MACHDEP, CTL_EOL); 264 /* 265 * this node is inserted so that the sysctl nodes in libc can 266 * operate. 267 */ 268 sysctl_createv(clog, 0, NULL, NULL, 269 CTLFLAG_PERMANENT, 270 CTLTYPE_NODE, "user", 271 SYSCTL_DESCR("User-level"), 272 NULL, 0, NULL, 0, 273 CTL_USER, CTL_EOL); 274 sysctl_createv(clog, 0, NULL, NULL, 275 CTLFLAG_PERMANENT, 276 CTLTYPE_NODE, "ddb", 277 SYSCTL_DESCR("In-kernel debugger"), 278 NULL, 0, NULL, 0, 279 CTL_DDB, CTL_EOL); 280 sysctl_createv(clog, 0, NULL, NULL, 281 CTLFLAG_PERMANENT, 282 CTLTYPE_NODE, "proc", 283 SYSCTL_DESCR("Per-process"), 284 NULL, 0, NULL, 0, 285 CTL_PROC, CTL_EOL); 286 sysctl_createv(clog, 0, NULL, NULL, 287 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 288 CTLTYPE_NODE, "vendor", 289 SYSCTL_DESCR("Vendor specific"), 290 NULL, 0, NULL, 0, 291 CTL_VENDOR, CTL_EOL); 292 sysctl_createv(clog, 0, NULL, NULL, 293 CTLFLAG_PERMANENT, 294 CTLTYPE_NODE, "emul", 295 SYSCTL_DESCR("Emulation settings"), 296 NULL, 0, NULL, 0, 297 CTL_EMUL, CTL_EOL); 298 sysctl_createv(clog, 0, NULL, NULL, 299 CTLFLAG_PERMANENT, 300 CTLTYPE_NODE, "security", 301 SYSCTL_DESCR("Security"), 302 NULL, 0, NULL, 0, 303 CTL_SECURITY, CTL_EOL); 304 } 305 306 /* 307 * this setup routine is a replacement for kern_sysctl() 308 */ 309 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 310 { 311 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 312 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 313 extern int dumponpanic; /* defined in kern/subr_prf.c */ 314 const struct sysctlnode *rnode; 315 316 sysctl_createv(clog, 0, NULL, NULL, 317 CTLFLAG_PERMANENT, 318 CTLTYPE_NODE, "kern", NULL, 319 NULL, 0, NULL, 0, 320 CTL_KERN, CTL_EOL); 321 322 sysctl_createv(clog, 0, NULL, NULL, 323 CTLFLAG_PERMANENT, 324 CTLTYPE_STRING, "ostype", 325 SYSCTL_DESCR("Operating system type"), 326 NULL, 0, &ostype, 0, 327 CTL_KERN, KERN_OSTYPE, CTL_EOL); 328 sysctl_createv(clog, 0, NULL, NULL, 329 CTLFLAG_PERMANENT, 330 CTLTYPE_STRING, "osrelease", 331 SYSCTL_DESCR("Operating system release"), 332 NULL, 0, &osrelease, 0, 333 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 334 sysctl_createv(clog, 0, NULL, NULL, 335 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 336 CTLTYPE_INT, "osrevision", 337 SYSCTL_DESCR("Operating system revision"), 338 NULL, __NetBSD_Version__, NULL, 0, 339 CTL_KERN, KERN_OSREV, CTL_EOL); 340 sysctl_createv(clog, 0, NULL, NULL, 341 CTLFLAG_PERMANENT, 342 CTLTYPE_STRING, "version", 343 SYSCTL_DESCR("Kernel version"), 344 NULL, 0, &version, 0, 345 CTL_KERN, KERN_VERSION, CTL_EOL); 346 sysctl_createv(clog, 0, NULL, NULL, 347 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 348 CTLTYPE_INT, "maxvnodes", 349 SYSCTL_DESCR("Maximum number of vnodes"), 350 sysctl_kern_maxvnodes, 0, NULL, 0, 351 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 352 sysctl_createv(clog, 0, NULL, NULL, 353 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 354 CTLTYPE_INT, "maxproc", 355 SYSCTL_DESCR("Maximum number of simultaneous processes"), 356 sysctl_kern_maxproc, 0, NULL, 0, 357 CTL_KERN, KERN_MAXPROC, CTL_EOL); 358 sysctl_createv(clog, 0, NULL, NULL, 359 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 360 CTLTYPE_INT, "maxfiles", 361 SYSCTL_DESCR("Maximum number of open files"), 362 NULL, 0, &maxfiles, 0, 363 CTL_KERN, KERN_MAXFILES, CTL_EOL); 364 sysctl_createv(clog, 0, NULL, NULL, 365 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 366 CTLTYPE_INT, "argmax", 367 SYSCTL_DESCR("Maximum number of bytes of arguments to " 368 "execve(2)"), 369 NULL, ARG_MAX, NULL, 0, 370 CTL_KERN, KERN_ARGMAX, CTL_EOL); 371 sysctl_createv(clog, 0, NULL, NULL, 372 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 373 CTLTYPE_STRING, "hostname", 374 SYSCTL_DESCR("System hostname"), 375 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 376 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 377 sysctl_createv(clog, 0, NULL, NULL, 378 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 379 CTLTYPE_INT, "hostid", 380 SYSCTL_DESCR("System host ID number"), 381 sysctl_kern_hostid, 0, NULL, 0, 382 CTL_KERN, KERN_HOSTID, CTL_EOL); 383 sysctl_createv(clog, 0, NULL, NULL, 384 CTLFLAG_PERMANENT, 385 CTLTYPE_STRUCT, "clockrate", 386 SYSCTL_DESCR("Kernel clock rates"), 387 sysctl_kern_clockrate, 0, NULL, 388 sizeof(struct clockinfo), 389 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 390 sysctl_createv(clog, 0, NULL, NULL, 391 CTLFLAG_PERMANENT, 392 CTLTYPE_INT, "hardclock_ticks", 393 SYSCTL_DESCR("Number of hardclock ticks"), 394 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 395 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 396 sysctl_createv(clog, 0, NULL, NULL, 397 CTLFLAG_PERMANENT, 398 CTLTYPE_STRUCT, "vnode", 399 SYSCTL_DESCR("System vnode table"), 400 sysctl_kern_vnode, 0, NULL, 0, 401 CTL_KERN, KERN_VNODE, CTL_EOL); 402 sysctl_createv(clog, 0, NULL, NULL, 403 CTLFLAG_PERMANENT, 404 CTLTYPE_STRUCT, "file", 405 SYSCTL_DESCR("System open file table"), 406 sysctl_kern_file, 0, NULL, 0, 407 CTL_KERN, KERN_FILE, CTL_EOL); 408 #ifndef GPROF 409 sysctl_createv(clog, 0, NULL, NULL, 410 CTLFLAG_PERMANENT, 411 CTLTYPE_NODE, "profiling", 412 SYSCTL_DESCR("Profiling information (not available)"), 413 sysctl_notavail, 0, NULL, 0, 414 CTL_KERN, KERN_PROF, CTL_EOL); 415 #endif 416 sysctl_createv(clog, 0, NULL, NULL, 417 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 418 CTLTYPE_INT, "posix1version", 419 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 420 "with which the operating system attempts " 421 "to comply"), 422 NULL, _POSIX_VERSION, NULL, 0, 423 CTL_KERN, KERN_POSIX1, CTL_EOL); 424 sysctl_createv(clog, 0, NULL, NULL, 425 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 426 CTLTYPE_INT, "ngroups", 427 SYSCTL_DESCR("Maximum number of supplemental groups"), 428 NULL, NGROUPS_MAX, NULL, 0, 429 CTL_KERN, KERN_NGROUPS, CTL_EOL); 430 sysctl_createv(clog, 0, NULL, NULL, 431 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 432 CTLTYPE_INT, "job_control", 433 SYSCTL_DESCR("Whether job control is available"), 434 NULL, 1, NULL, 0, 435 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 436 sysctl_createv(clog, 0, NULL, NULL, 437 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 438 CTLTYPE_INT, "saved_ids", 439 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 440 "available"), NULL, 441 #ifdef _POSIX_SAVED_IDS 442 1, 443 #else /* _POSIX_SAVED_IDS */ 444 0, 445 #endif /* _POSIX_SAVED_IDS */ 446 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 447 sysctl_createv(clog, 0, NULL, NULL, 448 CTLFLAG_PERMANENT, 449 CTLTYPE_STRUCT, "boottime", 450 SYSCTL_DESCR("System boot time"), 451 NULL, 0, &boottime, sizeof(boottime), 452 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 453 sysctl_createv(clog, 0, NULL, NULL, 454 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 455 CTLTYPE_STRING, "domainname", 456 SYSCTL_DESCR("YP domain name"), 457 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 458 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 459 sysctl_createv(clog, 0, NULL, NULL, 460 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 461 CTLTYPE_INT, "maxpartitions", 462 SYSCTL_DESCR("Maximum number of partitions allowed per " 463 "disk"), 464 NULL, MAXPARTITIONS, NULL, 0, 465 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 466 sysctl_createv(clog, 0, NULL, NULL, 467 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 468 CTLTYPE_INT, "rawpartition", 469 SYSCTL_DESCR("Raw partition of a disk"), 470 NULL, RAW_PART, NULL, 0, 471 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 472 sysctl_createv(clog, 0, NULL, NULL, 473 CTLFLAG_PERMANENT, 474 CTLTYPE_STRUCT, "timex", NULL, 475 sysctl_notavail, 0, NULL, 0, 476 CTL_KERN, KERN_TIMEX, CTL_EOL); 477 sysctl_createv(clog, 0, NULL, NULL, 478 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 479 CTLTYPE_INT, "rtc_offset", 480 SYSCTL_DESCR("Offset of real time clock from UTC in " 481 "minutes"), 482 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 483 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 484 sysctl_createv(clog, 0, NULL, NULL, 485 CTLFLAG_PERMANENT, 486 CTLTYPE_STRING, "root_device", 487 SYSCTL_DESCR("Name of the root device"), 488 sysctl_root_device, 0, NULL, 0, 489 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 490 sysctl_createv(clog, 0, NULL, NULL, 491 CTLFLAG_PERMANENT, 492 CTLTYPE_INT, "msgbufsize", 493 SYSCTL_DESCR("Size of the kernel message buffer"), 494 sysctl_msgbuf, 0, NULL, 0, 495 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 496 sysctl_createv(clog, 0, NULL, NULL, 497 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 498 CTLTYPE_INT, "fsync", 499 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 500 "Synchronization Option is available on " 501 "this system"), 502 NULL, 1, NULL, 0, 503 CTL_KERN, KERN_FSYNC, CTL_EOL); 504 sysctl_createv(clog, 0, NULL, NULL, 505 CTLFLAG_PERMANENT, 506 CTLTYPE_NODE, "ipc", 507 SYSCTL_DESCR("SysV IPC options"), 508 NULL, 0, NULL, 0, 509 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 510 sysctl_createv(clog, 0, NULL, NULL, 511 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 512 CTLTYPE_INT, "sysvmsg", 513 SYSCTL_DESCR("System V style message support available"), 514 NULL, 515 #ifdef SYSVMSG 516 1, 517 #else /* SYSVMSG */ 518 0, 519 #endif /* SYSVMSG */ 520 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 521 sysctl_createv(clog, 0, NULL, NULL, 522 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 523 CTLTYPE_INT, "sysvsem", 524 SYSCTL_DESCR("System V style semaphore support " 525 "available"), NULL, 526 #ifdef SYSVSEM 527 1, 528 #else /* SYSVSEM */ 529 0, 530 #endif /* SYSVSEM */ 531 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 532 sysctl_createv(clog, 0, NULL, NULL, 533 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 534 CTLTYPE_INT, "sysvshm", 535 SYSCTL_DESCR("System V style shared memory support " 536 "available"), NULL, 537 #ifdef SYSVSHM 538 1, 539 #else /* SYSVSHM */ 540 0, 541 #endif /* SYSVSHM */ 542 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 543 sysctl_createv(clog, 0, NULL, NULL, 544 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 545 CTLTYPE_INT, "synchronized_io", 546 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 547 "I/O Option is available on this system"), 548 NULL, 1, NULL, 0, 549 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 550 sysctl_createv(clog, 0, NULL, NULL, 551 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 552 CTLTYPE_INT, "iov_max", 553 SYSCTL_DESCR("Maximum number of iovec structures per " 554 "process"), 555 NULL, IOV_MAX, NULL, 0, 556 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 557 sysctl_createv(clog, 0, NULL, NULL, 558 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 559 CTLTYPE_INT, "mapped_files", 560 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 561 "Files Option is available on this system"), 562 NULL, 1, NULL, 0, 563 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 564 sysctl_createv(clog, 0, NULL, NULL, 565 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 566 CTLTYPE_INT, "memlock", 567 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 568 "Locking Option is available on this " 569 "system"), 570 NULL, 1, NULL, 0, 571 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 572 sysctl_createv(clog, 0, NULL, NULL, 573 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 574 CTLTYPE_INT, "memlock_range", 575 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 576 "Locking Option is available on this " 577 "system"), 578 NULL, 1, NULL, 0, 579 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 580 sysctl_createv(clog, 0, NULL, NULL, 581 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 582 CTLTYPE_INT, "memory_protection", 583 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 584 "Protection Option is available on this " 585 "system"), 586 NULL, 1, NULL, 0, 587 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 588 sysctl_createv(clog, 0, NULL, NULL, 589 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 590 CTLTYPE_INT, "login_name_max", 591 SYSCTL_DESCR("Maximum login name length"), 592 NULL, LOGIN_NAME_MAX, NULL, 0, 593 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 594 sysctl_createv(clog, 0, NULL, NULL, 595 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 596 CTLTYPE_STRING, "defcorename", 597 SYSCTL_DESCR("Default core file name"), 598 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 599 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 600 sysctl_createv(clog, 0, NULL, NULL, 601 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 602 CTLTYPE_INT, "logsigexit", 603 SYSCTL_DESCR("Log process exit when caused by signals"), 604 NULL, 0, &kern_logsigexit, 0, 605 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 606 sysctl_createv(clog, 0, NULL, NULL, 607 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 608 CTLTYPE_INT, "fscale", 609 SYSCTL_DESCR("Kernel fixed-point scale factor"), 610 NULL, FSCALE, NULL, 0, 611 CTL_KERN, KERN_FSCALE, CTL_EOL); 612 sysctl_createv(clog, 0, NULL, NULL, 613 CTLFLAG_PERMANENT, 614 CTLTYPE_INT, "ccpu", 615 SYSCTL_DESCR("Scheduler exponential decay value"), 616 NULL, 0, &ccpu, 0, 617 CTL_KERN, KERN_CCPU, CTL_EOL); 618 sysctl_createv(clog, 0, NULL, NULL, 619 CTLFLAG_PERMANENT, 620 CTLTYPE_STRUCT, "cp_time", 621 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 622 sysctl_kern_cptime, 0, NULL, 0, 623 CTL_KERN, KERN_CP_TIME, CTL_EOL); 624 sysctl_createv(clog, 0, NULL, NULL, 625 CTLFLAG_PERMANENT, 626 CTLTYPE_INT, "msgbuf", 627 SYSCTL_DESCR("Kernel message buffer"), 628 sysctl_msgbuf, 0, NULL, 0, 629 CTL_KERN, KERN_MSGBUF, CTL_EOL); 630 sysctl_createv(clog, 0, NULL, NULL, 631 CTLFLAG_PERMANENT, 632 CTLTYPE_STRUCT, "consdev", 633 SYSCTL_DESCR("Console device"), 634 sysctl_consdev, 0, NULL, sizeof(dev_t), 635 CTL_KERN, KERN_CONSDEV, CTL_EOL); 636 #if NPTY > 0 637 sysctl_createv(clog, 0, NULL, NULL, 638 CTLFLAG_PERMANENT, 639 CTLTYPE_INT, "maxptys", 640 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 641 sysctl_kern_maxptys, 0, NULL, 0, 642 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 643 #endif /* NPTY > 0 */ 644 sysctl_createv(clog, 0, NULL, NULL, 645 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 646 CTLTYPE_INT, "maxphys", 647 SYSCTL_DESCR("Maximum raw I/O transfer size"), 648 NULL, MAXPHYS, NULL, 0, 649 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 650 sysctl_createv(clog, 0, NULL, NULL, 651 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 652 CTLTYPE_INT, "sbmax", 653 SYSCTL_DESCR("Maximum socket buffer size"), 654 sysctl_kern_sbmax, 0, NULL, 0, 655 CTL_KERN, KERN_SBMAX, CTL_EOL); 656 sysctl_createv(clog, 0, NULL, NULL, 657 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 658 CTLTYPE_INT, "monotonic_clock", 659 SYSCTL_DESCR("Implementation version of the POSIX " 660 "1003.1b Monotonic Clock Option"), 661 /* XXX _POSIX_VERSION */ 662 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 663 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 664 sysctl_createv(clog, 0, NULL, NULL, 665 CTLFLAG_PERMANENT, 666 CTLTYPE_INT, "urandom", 667 SYSCTL_DESCR("Random integer value"), 668 sysctl_kern_urnd, 0, NULL, 0, 669 CTL_KERN, KERN_URND, CTL_EOL); 670 sysctl_createv(clog, 0, NULL, NULL, 671 CTLFLAG_PERMANENT, 672 CTLTYPE_INT, "arandom", 673 SYSCTL_DESCR("n bytes of random data"), 674 sysctl_kern_arnd, 0, NULL, 0, 675 CTL_KERN, KERN_ARND, CTL_EOL); 676 sysctl_createv(clog, 0, NULL, NULL, 677 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 678 CTLTYPE_INT, "labelsector", 679 SYSCTL_DESCR("Sector number containing the disklabel"), 680 NULL, LABELSECTOR, NULL, 0, 681 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 682 sysctl_createv(clog, 0, NULL, NULL, 683 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 684 CTLTYPE_INT, "labeloffset", 685 SYSCTL_DESCR("Offset of the disklabel within the " 686 "sector"), 687 NULL, LABELOFFSET, NULL, 0, 688 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 689 sysctl_createv(clog, 0, NULL, NULL, 690 CTLFLAG_PERMANENT, 691 CTLTYPE_NODE, "lwp", 692 SYSCTL_DESCR("System-wide LWP information"), 693 sysctl_kern_lwp, 0, NULL, 0, 694 CTL_KERN, KERN_LWP, CTL_EOL); 695 sysctl_createv(clog, 0, NULL, NULL, 696 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 697 CTLTYPE_INT, "forkfsleep", 698 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 699 "to process limits"), 700 sysctl_kern_forkfsleep, 0, NULL, 0, 701 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 702 sysctl_createv(clog, 0, NULL, NULL, 703 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 704 CTLTYPE_INT, "posix_threads", 705 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 706 "Threads option to which the system " 707 "attempts to conform"), 708 /* XXX _POSIX_VERSION */ 709 NULL, _POSIX_THREADS, NULL, 0, 710 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 711 sysctl_createv(clog, 0, NULL, NULL, 712 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 713 CTLTYPE_INT, "posix_semaphores", 714 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 715 "Semaphores option to which the system " 716 "attempts to conform"), NULL, 717 #ifdef P1003_1B_SEMAPHORE 718 200112, 719 #else /* P1003_1B_SEMAPHORE */ 720 0, 721 #endif /* P1003_1B_SEMAPHORE */ 722 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 723 sysctl_createv(clog, 0, NULL, NULL, 724 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 725 CTLTYPE_INT, "posix_barriers", 726 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 727 "Barriers option to which the system " 728 "attempts to conform"), 729 /* XXX _POSIX_VERSION */ 730 NULL, _POSIX_BARRIERS, NULL, 0, 731 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 732 sysctl_createv(clog, 0, NULL, NULL, 733 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 734 CTLTYPE_INT, "posix_timers", 735 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 736 "Timers option to which the system " 737 "attempts to conform"), 738 /* XXX _POSIX_VERSION */ 739 NULL, _POSIX_TIMERS, NULL, 0, 740 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 741 sysctl_createv(clog, 0, NULL, NULL, 742 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 743 CTLTYPE_INT, "posix_spin_locks", 744 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 745 "Locks option to which the system attempts " 746 "to conform"), 747 /* XXX _POSIX_VERSION */ 748 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 749 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 750 sysctl_createv(clog, 0, NULL, NULL, 751 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 752 CTLTYPE_INT, "posix_reader_writer_locks", 753 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 754 "Read-Write Locks option to which the " 755 "system attempts to conform"), 756 /* XXX _POSIX_VERSION */ 757 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 758 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 759 sysctl_createv(clog, 0, NULL, NULL, 760 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 761 CTLTYPE_INT, "dump_on_panic", 762 SYSCTL_DESCR("Perform a crash dump on system panic"), 763 NULL, 0, &dumponpanic, 0, 764 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 765 #ifdef DIAGNOSTIC 766 sysctl_createv(clog, 0, NULL, NULL, 767 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 768 CTLTYPE_INT, "panic_now", 769 SYSCTL_DESCR("Trigger a panic"), 770 sysctl_kern_trigger_panic, 0, NULL, 0, 771 CTL_KERN, CTL_CREATE, CTL_EOL); 772 #endif 773 sysctl_createv(clog, 0, NULL, NULL, 774 CTLFLAG_PERMANENT, 775 CTLTYPE_INT, "root_partition", 776 SYSCTL_DESCR("Root partition on the root device"), 777 sysctl_kern_root_partition, 0, NULL, 0, 778 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 779 sysctl_createv(clog, 0, NULL, NULL, 780 CTLFLAG_PERMANENT, 781 CTLTYPE_STRUCT, "drivers", 782 SYSCTL_DESCR("List of all drivers with block and " 783 "character device numbers"), 784 sysctl_kern_drivers, 0, NULL, 0, 785 CTL_KERN, KERN_DRIVERS, CTL_EOL); 786 sysctl_createv(clog, 0, NULL, NULL, 787 CTLFLAG_PERMANENT, 788 CTLTYPE_STRUCT, "file2", 789 SYSCTL_DESCR("System open file table"), 790 sysctl_kern_file2, 0, NULL, 0, 791 CTL_KERN, KERN_FILE2, CTL_EOL); 792 sysctl_createv(clog, 0, NULL, NULL, 793 CTLFLAG_PERMANENT, 794 CTLTYPE_STRUCT, "cp_id", 795 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 796 sysctl_kern_cpid, 0, NULL, 0, 797 CTL_KERN, KERN_CP_ID, CTL_EOL); 798 sysctl_createv(clog, 0, NULL, &rnode, 799 CTLFLAG_PERMANENT, 800 CTLTYPE_NODE, "coredump", 801 SYSCTL_DESCR("Coredump settings."), 802 NULL, 0, NULL, 0, 803 CTL_KERN, CTL_CREATE, CTL_EOL); 804 sysctl_createv(clog, 0, &rnode, &rnode, 805 CTLFLAG_PERMANENT, 806 CTLTYPE_NODE, "setid", 807 SYSCTL_DESCR("Set-id processes' coredump settings."), 808 NULL, 0, NULL, 0, 809 CTL_CREATE, CTL_EOL); 810 sysctl_createv(clog, 0, &rnode, NULL, 811 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 812 CTLTYPE_INT, "dump", 813 SYSCTL_DESCR("Allow set-id processes to dump core."), 814 sysctl_security_setidcore, 0, &security_setidcore_dump, 815 sizeof(security_setidcore_dump), 816 CTL_CREATE, CTL_EOL); 817 sysctl_createv(clog, 0, &rnode, NULL, 818 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 819 CTLTYPE_STRING, "path", 820 SYSCTL_DESCR("Path pattern for set-id coredumps."), 821 sysctl_security_setidcorename, 0, 822 &security_setidcore_path, 823 sizeof(security_setidcore_path), 824 CTL_CREATE, CTL_EOL); 825 sysctl_createv(clog, 0, &rnode, NULL, 826 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 827 CTLTYPE_INT, "owner", 828 SYSCTL_DESCR("Owner id for set-id processes' cores."), 829 sysctl_security_setidcore, 0, &security_setidcore_owner, 830 0, 831 CTL_CREATE, CTL_EOL); 832 sysctl_createv(clog, 0, &rnode, NULL, 833 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 834 CTLTYPE_INT, "group", 835 SYSCTL_DESCR("Group id for set-id processes' cores."), 836 sysctl_security_setidcore, 0, &security_setidcore_group, 837 0, 838 CTL_CREATE, CTL_EOL); 839 sysctl_createv(clog, 0, &rnode, NULL, 840 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 841 CTLTYPE_INT, "mode", 842 SYSCTL_DESCR("Mode for set-id processes' cores."), 843 sysctl_security_setidcore, 0, &security_setidcore_mode, 844 0, 845 CTL_CREATE, CTL_EOL); 846 sysctl_createv(clog, 0, NULL, NULL, 847 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 848 CTLTYPE_INT, "no_sa_support", 849 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"), 850 NULL, 1, NULL, 0, 851 CTL_KERN, CTL_CREATE, CTL_EOL); 852 } 853 854 SYSCTL_SETUP(sysctl_kern_proc_setup, 855 "sysctl kern.proc/proc2/proc_args subtree setup") 856 { 857 858 sysctl_createv(clog, 0, NULL, NULL, 859 CTLFLAG_PERMANENT, 860 CTLTYPE_NODE, "kern", NULL, 861 NULL, 0, NULL, 0, 862 CTL_KERN, CTL_EOL); 863 864 sysctl_createv(clog, 0, NULL, NULL, 865 CTLFLAG_PERMANENT, 866 CTLTYPE_NODE, "proc", 867 SYSCTL_DESCR("System-wide process information"), 868 sysctl_doeproc, 0, NULL, 0, 869 CTL_KERN, KERN_PROC, CTL_EOL); 870 sysctl_createv(clog, 0, NULL, NULL, 871 CTLFLAG_PERMANENT, 872 CTLTYPE_NODE, "proc2", 873 SYSCTL_DESCR("Machine-independent process information"), 874 sysctl_doeproc, 0, NULL, 0, 875 CTL_KERN, KERN_PROC2, CTL_EOL); 876 sysctl_createv(clog, 0, NULL, NULL, 877 CTLFLAG_PERMANENT, 878 CTLTYPE_NODE, "proc_args", 879 SYSCTL_DESCR("Process argument information"), 880 sysctl_kern_proc_args, 0, NULL, 0, 881 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 882 883 /* 884 "nodes" under these: 885 886 KERN_PROC_ALL 887 KERN_PROC_PID pid 888 KERN_PROC_PGRP pgrp 889 KERN_PROC_SESSION sess 890 KERN_PROC_TTY tty 891 KERN_PROC_UID uid 892 KERN_PROC_RUID uid 893 KERN_PROC_GID gid 894 KERN_PROC_RGID gid 895 896 all in all, probably not worth the effort... 897 */ 898 } 899 900 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 901 { 902 u_int u; 903 u_quad_t q; 904 905 sysctl_createv(clog, 0, NULL, NULL, 906 CTLFLAG_PERMANENT, 907 CTLTYPE_NODE, "hw", NULL, 908 NULL, 0, NULL, 0, 909 CTL_HW, CTL_EOL); 910 911 sysctl_createv(clog, 0, NULL, NULL, 912 CTLFLAG_PERMANENT, 913 CTLTYPE_STRING, "machine", 914 SYSCTL_DESCR("Machine class"), 915 NULL, 0, machine, 0, 916 CTL_HW, HW_MACHINE, CTL_EOL); 917 sysctl_createv(clog, 0, NULL, NULL, 918 CTLFLAG_PERMANENT, 919 CTLTYPE_STRING, "model", 920 SYSCTL_DESCR("Machine model"), 921 NULL, 0, cpu_model, 0, 922 CTL_HW, HW_MODEL, CTL_EOL); 923 sysctl_createv(clog, 0, NULL, NULL, 924 CTLFLAG_PERMANENT, 925 CTLTYPE_INT, "ncpu", 926 SYSCTL_DESCR("Number of CPUs configured"), 927 NULL, 0, &ncpu, 0, 928 CTL_HW, HW_NCPU, CTL_EOL); 929 sysctl_createv(clog, 0, NULL, NULL, 930 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 931 CTLTYPE_INT, "byteorder", 932 SYSCTL_DESCR("System byte order"), 933 NULL, BYTE_ORDER, NULL, 0, 934 CTL_HW, HW_BYTEORDER, CTL_EOL); 935 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 936 UINT_MAX : physmem * PAGE_SIZE; 937 sysctl_createv(clog, 0, NULL, NULL, 938 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 939 CTLTYPE_INT, "physmem", 940 SYSCTL_DESCR("Bytes of physical memory"), 941 NULL, u, NULL, 0, 942 CTL_HW, HW_PHYSMEM, CTL_EOL); 943 sysctl_createv(clog, 0, NULL, NULL, 944 CTLFLAG_PERMANENT, 945 CTLTYPE_INT, "usermem", 946 SYSCTL_DESCR("Bytes of non-kernel memory"), 947 sysctl_hw_usermem, 0, NULL, 0, 948 CTL_HW, HW_USERMEM, CTL_EOL); 949 sysctl_createv(clog, 0, NULL, NULL, 950 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 951 CTLTYPE_INT, "pagesize", 952 SYSCTL_DESCR("Software page size"), 953 NULL, PAGE_SIZE, NULL, 0, 954 CTL_HW, HW_PAGESIZE, CTL_EOL); 955 sysctl_createv(clog, 0, NULL, NULL, 956 CTLFLAG_PERMANENT, 957 CTLTYPE_STRING, "machine_arch", 958 SYSCTL_DESCR("Machine CPU class"), 959 NULL, 0, machine_arch, 0, 960 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 961 sysctl_createv(clog, 0, NULL, NULL, 962 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 963 CTLTYPE_INT, "alignbytes", 964 SYSCTL_DESCR("Alignment constraint for all possible " 965 "data types"), 966 NULL, ALIGNBYTES, NULL, 0, 967 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 968 sysctl_createv(clog, 0, NULL, NULL, 969 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 970 CTLTYPE_STRING, "cnmagic", 971 SYSCTL_DESCR("Console magic key sequence"), 972 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 973 CTL_HW, HW_CNMAGIC, CTL_EOL); 974 q = (u_quad_t)physmem * PAGE_SIZE; 975 sysctl_createv(clog, 0, NULL, NULL, 976 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 977 CTLTYPE_QUAD, "physmem64", 978 SYSCTL_DESCR("Bytes of physical memory"), 979 NULL, q, NULL, 0, 980 CTL_HW, HW_PHYSMEM64, CTL_EOL); 981 sysctl_createv(clog, 0, NULL, NULL, 982 CTLFLAG_PERMANENT, 983 CTLTYPE_QUAD, "usermem64", 984 SYSCTL_DESCR("Bytes of non-kernel memory"), 985 sysctl_hw_usermem, 0, NULL, 0, 986 CTL_HW, HW_USERMEM64, CTL_EOL); 987 sysctl_createv(clog, 0, NULL, NULL, 988 CTLFLAG_PERMANENT, 989 CTLTYPE_INT, "ncpuonline", 990 SYSCTL_DESCR("Number of CPUs online"), 991 NULL, 0, &ncpuonline, 0, 992 CTL_HW, HW_NCPUONLINE, CTL_EOL); 993 } 994 995 #ifdef DEBUG 996 /* 997 * Debugging related system variables. 998 */ 999 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 1000 struct ctldebug debug5, debug6, debug7, debug8, debug9; 1001 struct ctldebug debug10, debug11, debug12, debug13, debug14; 1002 struct ctldebug debug15, debug16, debug17, debug18, debug19; 1003 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 1004 &debug0, &debug1, &debug2, &debug3, &debug4, 1005 &debug5, &debug6, &debug7, &debug8, &debug9, 1006 &debug10, &debug11, &debug12, &debug13, &debug14, 1007 &debug15, &debug16, &debug17, &debug18, &debug19, 1008 }; 1009 1010 /* 1011 * this setup routine is a replacement for debug_sysctl() 1012 * 1013 * note that it creates several nodes per defined debug variable 1014 */ 1015 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1016 { 1017 struct ctldebug *cdp; 1018 char nodename[20]; 1019 int i; 1020 1021 /* 1022 * two ways here: 1023 * 1024 * the "old" way (debug.name -> value) which was emulated by 1025 * the sysctl(8) binary 1026 * 1027 * the new way, which the sysctl(8) binary was actually using 1028 1029 node debug 1030 node debug.0 1031 string debug.0.name 1032 int debug.0.value 1033 int debug.name 1034 1035 */ 1036 1037 sysctl_createv(clog, 0, NULL, NULL, 1038 CTLFLAG_PERMANENT, 1039 CTLTYPE_NODE, "debug", NULL, 1040 NULL, 0, NULL, 0, 1041 CTL_DEBUG, CTL_EOL); 1042 1043 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1044 cdp = debugvars[i]; 1045 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1046 continue; 1047 1048 snprintf(nodename, sizeof(nodename), "debug%d", i); 1049 sysctl_createv(clog, 0, NULL, NULL, 1050 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1051 CTLTYPE_NODE, nodename, NULL, 1052 NULL, 0, NULL, 0, 1053 CTL_DEBUG, i, CTL_EOL); 1054 sysctl_createv(clog, 0, NULL, NULL, 1055 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1056 CTLTYPE_STRING, "name", NULL, 1057 /*XXXUNCONST*/ 1058 NULL, 0, __UNCONST(cdp->debugname), 0, 1059 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1060 sysctl_createv(clog, 0, NULL, NULL, 1061 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1062 CTLTYPE_INT, "value", NULL, 1063 NULL, 0, cdp->debugvar, 0, 1064 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1065 sysctl_createv(clog, 0, NULL, NULL, 1066 CTLFLAG_PERMANENT, 1067 CTLTYPE_INT, cdp->debugname, NULL, 1068 NULL, 0, cdp->debugvar, 0, 1069 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1070 } 1071 } 1072 #endif /* DEBUG */ 1073 1074 /* 1075 * ******************************************************************** 1076 * section 2: private node-specific helper routines. 1077 * ******************************************************************** 1078 */ 1079 1080 #ifdef DIAGNOSTIC 1081 static int 1082 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1083 { 1084 int newtrig, error; 1085 struct sysctlnode node; 1086 1087 newtrig = 0; 1088 node = *rnode; 1089 node.sysctl_data = &newtrig; 1090 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1091 if (error || newp == NULL) 1092 return (error); 1093 1094 if (newtrig != 0) 1095 panic("Panic triggered"); 1096 1097 return (error); 1098 } 1099 #endif 1100 1101 /* 1102 * sysctl helper routine for kern.maxvnodes. Drain vnodes if 1103 * new value is lower than desiredvnodes and then calls reinit 1104 * routines that needs to adjust to the new value. 1105 */ 1106 static int 1107 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1108 { 1109 int error, new_vnodes, old_vnodes; 1110 struct sysctlnode node; 1111 1112 new_vnodes = desiredvnodes; 1113 node = *rnode; 1114 node.sysctl_data = &new_vnodes; 1115 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1116 if (error || newp == NULL) 1117 return (error); 1118 1119 old_vnodes = desiredvnodes; 1120 desiredvnodes = new_vnodes; 1121 if (new_vnodes < old_vnodes) { 1122 error = vfs_drainvnodes(new_vnodes, l); 1123 if (error) { 1124 desiredvnodes = old_vnodes; 1125 return (error); 1126 } 1127 } 1128 vfs_reinit(); 1129 nchreinit(); 1130 1131 return (0); 1132 } 1133 1134 /* 1135 * sysctl helper routine for rtc_offset - set time after changes 1136 */ 1137 static int 1138 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1139 { 1140 struct timespec ts, delta; 1141 int error, new_rtc_offset; 1142 struct sysctlnode node; 1143 1144 new_rtc_offset = rtc_offset; 1145 node = *rnode; 1146 node.sysctl_data = &new_rtc_offset; 1147 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1148 if (error || newp == NULL) 1149 return (error); 1150 1151 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1152 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1153 KAUTH_ARG(new_rtc_offset), NULL, NULL)) 1154 return (EPERM); 1155 if (rtc_offset == new_rtc_offset) 1156 return (0); 1157 1158 /* if we change the offset, adjust the time */ 1159 nanotime(&ts); 1160 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1161 delta.tv_nsec = 0; 1162 timespecadd(&ts, &delta, &ts); 1163 rtc_offset = new_rtc_offset; 1164 return (settime(l->l_proc, &ts)); 1165 } 1166 1167 /* 1168 * sysctl helper routine for kern.maxproc. Ensures that the new 1169 * values are not too low or too high. 1170 */ 1171 static int 1172 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1173 { 1174 int error, nmaxproc; 1175 struct sysctlnode node; 1176 1177 nmaxproc = maxproc; 1178 node = *rnode; 1179 node.sysctl_data = &nmaxproc; 1180 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1181 if (error || newp == NULL) 1182 return (error); 1183 1184 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1185 return (EINVAL); 1186 #ifdef __HAVE_CPU_MAXPROC 1187 if (nmaxproc > cpu_maxproc()) 1188 return (EINVAL); 1189 #endif 1190 maxproc = nmaxproc; 1191 1192 return (0); 1193 } 1194 1195 /* 1196 * sysctl helper function for kern.hostid. The hostid is a long, but 1197 * we export it as an int, so we need to give it a little help. 1198 */ 1199 static int 1200 sysctl_kern_hostid(SYSCTLFN_ARGS) 1201 { 1202 int error, inthostid; 1203 struct sysctlnode node; 1204 1205 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1206 node = *rnode; 1207 node.sysctl_data = &inthostid; 1208 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1209 if (error || newp == NULL) 1210 return (error); 1211 1212 hostid = (unsigned)inthostid; 1213 1214 return (0); 1215 } 1216 1217 /* 1218 * sysctl helper function for kern.hostname and kern.domainnname. 1219 * resets the relevant recorded length when the underlying name is 1220 * changed. 1221 */ 1222 static int 1223 sysctl_setlen(SYSCTLFN_ARGS) 1224 { 1225 int error; 1226 1227 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1228 if (error || newp == NULL) 1229 return (error); 1230 1231 switch (rnode->sysctl_num) { 1232 case KERN_HOSTNAME: 1233 hostnamelen = strlen((const char*)rnode->sysctl_data); 1234 break; 1235 case KERN_DOMAINNAME: 1236 domainnamelen = strlen((const char*)rnode->sysctl_data); 1237 break; 1238 } 1239 1240 return (0); 1241 } 1242 1243 /* 1244 * sysctl helper routine for kern.clockrate. Assembles a struct on 1245 * the fly to be returned to the caller. 1246 */ 1247 static int 1248 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1249 { 1250 struct clockinfo clkinfo; 1251 struct sysctlnode node; 1252 1253 clkinfo.tick = tick; 1254 clkinfo.tickadj = tickadj; 1255 clkinfo.hz = hz; 1256 clkinfo.profhz = profhz; 1257 clkinfo.stathz = stathz ? stathz : hz; 1258 1259 node = *rnode; 1260 node.sysctl_data = &clkinfo; 1261 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1262 } 1263 1264 1265 /* 1266 * sysctl helper routine for kern.file pseudo-subtree. 1267 */ 1268 static int 1269 sysctl_kern_file(SYSCTLFN_ARGS) 1270 { 1271 int error; 1272 size_t buflen; 1273 struct file *fp; 1274 char *start, *where; 1275 1276 start = where = oldp; 1277 buflen = *oldlenp; 1278 if (where == NULL) { 1279 /* 1280 * overestimate by 10 files 1281 */ 1282 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1283 return (0); 1284 } 1285 1286 /* 1287 * first dcopyout filehead 1288 */ 1289 if (buflen < sizeof(filehead)) { 1290 *oldlenp = 0; 1291 return (0); 1292 } 1293 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1294 if (error) 1295 return (error); 1296 buflen -= sizeof(filehead); 1297 where += sizeof(filehead); 1298 1299 /* 1300 * followed by an array of file structures 1301 */ 1302 LIST_FOREACH(fp, &filehead, f_list) { 1303 if (kauth_authorize_generic(l->l_cred, 1304 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1305 continue; 1306 if (buflen < sizeof(struct file)) { 1307 *oldlenp = where - start; 1308 return (ENOMEM); 1309 } 1310 error = dcopyout(l, fp, where, sizeof(struct file)); 1311 if (error) 1312 return (error); 1313 buflen -= sizeof(struct file); 1314 where += sizeof(struct file); 1315 } 1316 *oldlenp = where - start; 1317 return (0); 1318 } 1319 1320 /* 1321 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 1322 * former it merely checks the message buffer is set up. For the latter, 1323 * it also copies out the data if necessary. 1324 */ 1325 static int 1326 sysctl_msgbuf(SYSCTLFN_ARGS) 1327 { 1328 char *where = oldp; 1329 size_t len, maxlen; 1330 long beg, end; 1331 int error; 1332 1333 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1334 msgbufenabled = 0; 1335 return (ENXIO); 1336 } 1337 1338 switch (rnode->sysctl_num) { 1339 case KERN_MSGBUFSIZE: { 1340 struct sysctlnode node = *rnode; 1341 int msg_bufs = (int)msgbufp->msg_bufs; 1342 node.sysctl_data = &msg_bufs; 1343 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1344 } 1345 case KERN_MSGBUF: 1346 break; 1347 default: 1348 return (EOPNOTSUPP); 1349 } 1350 1351 if (newp != NULL) 1352 return (EPERM); 1353 1354 if (oldp == NULL) { 1355 /* always return full buffer size */ 1356 *oldlenp = msgbufp->msg_bufs; 1357 return (0); 1358 } 1359 1360 error = 0; 1361 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1362 1363 /* 1364 * First, copy from the write pointer to the end of 1365 * message buffer. 1366 */ 1367 beg = msgbufp->msg_bufx; 1368 end = msgbufp->msg_bufs; 1369 while (maxlen > 0) { 1370 len = MIN(end - beg, maxlen); 1371 if (len == 0) 1372 break; 1373 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1374 if (error) 1375 break; 1376 where += len; 1377 maxlen -= len; 1378 1379 /* 1380 * ... then, copy from the beginning of message buffer to 1381 * the write pointer. 1382 */ 1383 beg = 0; 1384 end = msgbufp->msg_bufx; 1385 } 1386 1387 return (error); 1388 } 1389 1390 /* 1391 * sysctl helper routine for kern.defcorename. In the case of a new 1392 * string being assigned, check that it's not a zero-length string. 1393 * (XXX the check in -current doesn't work, but do we really care?) 1394 */ 1395 static int 1396 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1397 { 1398 int error; 1399 char *newcorename; 1400 struct sysctlnode node; 1401 1402 newcorename = PNBUF_GET(); 1403 node = *rnode; 1404 node.sysctl_data = &newcorename[0]; 1405 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1406 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1407 if (error || newp == NULL) { 1408 goto done; 1409 } 1410 1411 /* 1412 * when sysctl_lookup() deals with a string, it's guaranteed 1413 * to come back nul terminated. So there. :) 1414 */ 1415 if (strlen(newcorename) == 0) { 1416 error = EINVAL; 1417 } else { 1418 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1419 error = 0; 1420 } 1421 done: 1422 PNBUF_PUT(newcorename); 1423 return error; 1424 } 1425 1426 /* 1427 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1428 * across all cpus. 1429 */ 1430 static int 1431 sysctl_kern_cptime(SYSCTLFN_ARGS) 1432 { 1433 struct sysctlnode node = *rnode; 1434 1435 #ifndef MULTIPROCESSOR 1436 1437 if (namelen == 1) { 1438 if (name[0] != 0) 1439 return (ENOENT); 1440 /* 1441 * you're allowed to ask for the zero'th processor 1442 */ 1443 name++; 1444 namelen--; 1445 } 1446 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1447 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1448 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1449 1450 #else /* MULTIPROCESSOR */ 1451 1452 uint64_t *cp_time = NULL; 1453 int error, n = ncpu, i; 1454 struct cpu_info *ci; 1455 CPU_INFO_ITERATOR cii; 1456 1457 /* 1458 * if you specifically pass a buffer that is the size of the 1459 * sum, or if you are probing for the size, you get the "sum" 1460 * of cp_time (and the size thereof) across all processors. 1461 * 1462 * alternately, you can pass an additional mib number and get 1463 * cp_time for that particular processor. 1464 */ 1465 switch (namelen) { 1466 case 0: 1467 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1468 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1469 n = -1; /* SUM */ 1470 } 1471 else { 1472 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1473 n = -2; /* ALL */ 1474 } 1475 break; 1476 case 1: 1477 if (name[0] < 0 || name[0] >= n) 1478 return (ENOENT); /* ENOSUCHPROCESSOR */ 1479 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1480 n = name[0]; 1481 /* 1482 * adjust these so that sysctl_lookup() will be happy 1483 */ 1484 name++; 1485 namelen--; 1486 break; 1487 default: 1488 return (EINVAL); 1489 } 1490 1491 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1492 if (cp_time == NULL) 1493 return (ENOMEM); 1494 node.sysctl_data = cp_time; 1495 memset(cp_time, 0, node.sysctl_size); 1496 1497 for (CPU_INFO_FOREACH(cii, ci)) { 1498 if (n <= 0) 1499 for (i = 0; i < CPUSTATES; i++) 1500 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1501 /* 1502 * if a specific processor was requested and we just 1503 * did it, we're done here 1504 */ 1505 if (n == 0) 1506 break; 1507 /* 1508 * if doing "all", skip to next cp_time set for next processor 1509 */ 1510 if (n == -2) 1511 cp_time += CPUSTATES; 1512 /* 1513 * if we're doing a specific processor, we're one 1514 * processor closer 1515 */ 1516 if (n > 0) 1517 n--; 1518 } 1519 1520 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1521 free(node.sysctl_data, M_TEMP); 1522 return (error); 1523 1524 #endif /* MULTIPROCESSOR */ 1525 } 1526 1527 #if NPTY > 0 1528 /* 1529 * sysctl helper routine for kern.maxptys. Ensures that any new value 1530 * is acceptable to the pty subsystem. 1531 */ 1532 static int 1533 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1534 { 1535 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1536 int error, xmax; 1537 struct sysctlnode node; 1538 1539 /* get current value of maxptys */ 1540 xmax = pty_maxptys(0, 0); 1541 1542 node = *rnode; 1543 node.sysctl_data = &xmax; 1544 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1545 if (error || newp == NULL) 1546 return (error); 1547 1548 if (xmax != pty_maxptys(xmax, 1)) 1549 return (EINVAL); 1550 1551 return (0); 1552 } 1553 #endif /* NPTY > 0 */ 1554 1555 /* 1556 * sysctl helper routine for kern.sbmax. Basically just ensures that 1557 * any new value is not too small. 1558 */ 1559 static int 1560 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1561 { 1562 int error, new_sbmax; 1563 struct sysctlnode node; 1564 1565 new_sbmax = sb_max; 1566 node = *rnode; 1567 node.sysctl_data = &new_sbmax; 1568 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1569 if (error || newp == NULL) 1570 return (error); 1571 1572 error = sb_max_set(new_sbmax); 1573 1574 return (error); 1575 } 1576 1577 /* 1578 * sysctl helper routine for kern.urandom node. Picks a random number 1579 * for you. 1580 */ 1581 static int 1582 sysctl_kern_urnd(SYSCTLFN_ARGS) 1583 { 1584 #if NRND > 0 1585 int v; 1586 1587 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1588 struct sysctlnode node = *rnode; 1589 node.sysctl_data = &v; 1590 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1591 } 1592 else 1593 return (EIO); /*XXX*/ 1594 #else 1595 return (EOPNOTSUPP); 1596 #endif 1597 } 1598 1599 /* 1600 * sysctl helper routine for kern.arandom node. Picks a random number 1601 * for you. 1602 */ 1603 static int 1604 sysctl_kern_arnd(SYSCTLFN_ARGS) 1605 { 1606 #if NRND > 0 1607 int error; 1608 void *v; 1609 struct sysctlnode node = *rnode; 1610 1611 if (*oldlenp == 0) 1612 return 0; 1613 if (*oldlenp > 8192) 1614 return E2BIG; 1615 1616 v = malloc(*oldlenp, M_TEMP, M_WAITOK); 1617 1618 arc4randbytes(v, *oldlenp); 1619 node.sysctl_data = v; 1620 node.sysctl_size = *oldlenp; 1621 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1622 free(v, M_TEMP); 1623 return error; 1624 #else 1625 return (EOPNOTSUPP); 1626 #endif 1627 } 1628 /* 1629 * sysctl helper routine to do kern.lwp.* work. 1630 */ 1631 static int 1632 sysctl_kern_lwp(SYSCTLFN_ARGS) 1633 { 1634 struct kinfo_lwp klwp; 1635 struct proc *p; 1636 struct lwp *l2; 1637 char *where, *dp; 1638 int pid, elem_size, elem_count; 1639 int buflen, needed, error; 1640 1641 if (namelen == 1 && name[0] == CTL_QUERY) 1642 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1643 1644 dp = where = oldp; 1645 buflen = where != NULL ? *oldlenp : 0; 1646 error = needed = 0; 1647 1648 if (newp != NULL || namelen != 3) 1649 return (EINVAL); 1650 pid = name[0]; 1651 elem_size = name[1]; 1652 elem_count = name[2]; 1653 1654 mutex_enter(&proclist_lock); 1655 if (pid == -1) { 1656 LIST_FOREACH(l2, &alllwp, l_list) { 1657 if (buflen >= elem_size && elem_count > 0) { 1658 lwp_lock(l2); 1659 fill_lwp(l2, &klwp); 1660 lwp_unlock(l2); 1661 1662 /* 1663 * Copy out elem_size, but not larger than 1664 * the size of a struct kinfo_proc2. 1665 */ 1666 error = dcopyout(l, &klwp, dp, 1667 min(sizeof(klwp), elem_size)); 1668 if (error) 1669 goto cleanup; 1670 dp += elem_size; 1671 buflen -= elem_size; 1672 elem_count--; 1673 } 1674 needed += elem_size; 1675 } 1676 } else { 1677 p = p_find(pid, PFIND_LOCKED); 1678 if (p == NULL) { 1679 mutex_exit(&proclist_lock); 1680 return (ESRCH); 1681 } 1682 mutex_enter(&p->p_smutex); 1683 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1684 if (buflen >= elem_size && elem_count > 0) { 1685 struct lwp *l3; 1686 1687 lwp_lock(l2); 1688 fill_lwp(l2, &klwp); 1689 lwp_unlock(l2); 1690 mutex_exit(&p->p_smutex); 1691 /* 1692 * Copy out elem_size, but not larger than 1693 * the size of a struct kinfo_proc2. 1694 */ 1695 error = dcopyout(l, &klwp, dp, 1696 min(sizeof(klwp), elem_size)); 1697 if (error) { 1698 goto cleanup; 1699 } 1700 mutex_enter(&p->p_smutex); 1701 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1702 if (l2 == l3) 1703 break; 1704 } 1705 if (l3 == NULL) { 1706 mutex_exit(&p->p_smutex); 1707 error = EAGAIN; 1708 goto cleanup; 1709 } 1710 dp += elem_size; 1711 buflen -= elem_size; 1712 elem_count--; 1713 } 1714 needed += elem_size; 1715 } 1716 mutex_exit(&p->p_smutex); 1717 } 1718 mutex_exit(&proclist_lock); 1719 1720 if (where != NULL) { 1721 *oldlenp = dp - where; 1722 if (needed > *oldlenp) 1723 return (ENOMEM); 1724 } else { 1725 needed += KERN_LWPSLOP; 1726 *oldlenp = needed; 1727 } 1728 return (0); 1729 cleanup: 1730 mutex_exit(&proclist_lock); 1731 return (error); 1732 } 1733 1734 /* 1735 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1736 * given value is not too large or two small, and is at least one 1737 * timer tick if not zero. 1738 */ 1739 static int 1740 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1741 { 1742 /* userland sees value in ms, internally is in ticks */ 1743 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1744 int error, timo, lsleep; 1745 struct sysctlnode node; 1746 1747 lsleep = forkfsleep * 1000 / hz; 1748 node = *rnode; 1749 node.sysctl_data = &lsleep; 1750 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1751 if (error || newp == NULL) 1752 return (error); 1753 1754 /* refuse negative values, and overly 'long time' */ 1755 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1756 return (EINVAL); 1757 1758 timo = mstohz(lsleep); 1759 1760 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1761 if (lsleep != 0 && timo == 0) 1762 forkfsleep = 1; 1763 else 1764 forkfsleep = timo; 1765 1766 return (0); 1767 } 1768 1769 /* 1770 * sysctl helper routine for kern.root_partition 1771 */ 1772 static int 1773 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1774 { 1775 int rootpart = DISKPART(rootdev); 1776 struct sysctlnode node = *rnode; 1777 1778 node.sysctl_data = &rootpart; 1779 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1780 } 1781 1782 /* 1783 * sysctl helper function for kern.drivers 1784 */ 1785 static int 1786 sysctl_kern_drivers(SYSCTLFN_ARGS) 1787 { 1788 int error; 1789 size_t buflen; 1790 struct kinfo_drivers kd; 1791 char *start, *where; 1792 const char *dname; 1793 int i; 1794 extern struct devsw_conv *devsw_conv; 1795 extern int max_devsw_convs; 1796 1797 if (newp != NULL || namelen != 0) 1798 return (EINVAL); 1799 1800 start = where = oldp; 1801 buflen = *oldlenp; 1802 if (where == NULL) { 1803 *oldlenp = max_devsw_convs * sizeof kd; 1804 return 0; 1805 } 1806 1807 /* 1808 * An array of kinfo_drivers structures 1809 */ 1810 error = 0; 1811 for (i = 0; i < max_devsw_convs; i++) { 1812 dname = devsw_conv[i].d_name; 1813 if (dname == NULL) 1814 continue; 1815 if (buflen < sizeof kd) { 1816 error = ENOMEM; 1817 break; 1818 } 1819 memset(&kd, 0, sizeof(kd)); 1820 kd.d_bmajor = devsw_conv[i].d_bmajor; 1821 kd.d_cmajor = devsw_conv[i].d_cmajor; 1822 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1823 error = dcopyout(l, &kd, where, sizeof kd); 1824 if (error != 0) 1825 break; 1826 buflen -= sizeof kd; 1827 where += sizeof kd; 1828 } 1829 *oldlenp = where - start; 1830 return error; 1831 } 1832 1833 /* 1834 * sysctl helper function for kern.file2 1835 */ 1836 static int 1837 sysctl_kern_file2(SYSCTLFN_ARGS) 1838 { 1839 struct proc *p; 1840 struct file *fp; 1841 struct filedesc *fd; 1842 struct kinfo_file kf; 1843 char *dp; 1844 u_int i, op; 1845 size_t len, needed, elem_size, out_size; 1846 int error, arg, elem_count; 1847 1848 if (namelen == 1 && name[0] == CTL_QUERY) 1849 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1850 1851 if (namelen != 4) 1852 return (EINVAL); 1853 1854 error = 0; 1855 dp = oldp; 1856 len = (oldp != NULL) ? *oldlenp : 0; 1857 op = name[0]; 1858 arg = name[1]; 1859 elem_size = name[2]; 1860 elem_count = name[3]; 1861 out_size = MIN(sizeof(kf), elem_size); 1862 needed = 0; 1863 1864 if (elem_size < 1 || elem_count < 0) 1865 return (EINVAL); 1866 1867 switch (op) { 1868 case KERN_FILE_BYFILE: 1869 /* 1870 * doesn't use arg so it must be zero 1871 */ 1872 if (arg != 0) 1873 return (EINVAL); 1874 LIST_FOREACH(fp, &filehead, f_list) { 1875 if (kauth_authorize_generic(l->l_cred, 1876 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1877 continue; 1878 if (len >= elem_size && elem_count > 0) { 1879 fill_file(&kf, fp, NULL, 0); 1880 error = dcopyout(l, &kf, dp, out_size); 1881 if (error) 1882 break; 1883 dp += elem_size; 1884 len -= elem_size; 1885 } 1886 if (elem_count > 0) { 1887 needed += elem_size; 1888 if (elem_count != INT_MAX) 1889 elem_count--; 1890 } 1891 } 1892 break; 1893 case KERN_FILE_BYPID: 1894 if (arg < -1) 1895 /* -1 means all processes */ 1896 return (EINVAL); 1897 mutex_enter(&proclist_lock); 1898 PROCLIST_FOREACH(p, &allproc) { 1899 if (p->p_stat == SIDL) 1900 /* skip embryonic processes */ 1901 continue; 1902 if (kauth_authorize_process(l->l_cred, 1903 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 1904 continue; 1905 if (arg > 0 && p->p_pid != arg) 1906 /* pick only the one we want */ 1907 /* XXX want 0 to mean "kernel files" */ 1908 continue; 1909 fd = p->p_fd; 1910 for (i = 0; i < fd->fd_nfiles; i++) { 1911 fp = fd->fd_ofiles[i]; 1912 if (fp == NULL || !FILE_IS_USABLE(fp)) 1913 continue; 1914 if (len >= elem_size && elem_count > 0) { 1915 fill_file(&kf, fd->fd_ofiles[i], 1916 p, i); 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 } 1930 mutex_exit(&proclist_lock); 1931 break; 1932 default: 1933 return (EINVAL); 1934 } 1935 1936 if (oldp == NULL) 1937 needed += KERN_FILESLOP * elem_size; 1938 *oldlenp = needed; 1939 1940 return (error); 1941 } 1942 1943 static void 1944 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 1945 { 1946 1947 memset(kp, 0, sizeof(*kp)); 1948 1949 kp->ki_fileaddr = PTRTOUINT64(fp); 1950 kp->ki_flag = fp->f_flag; 1951 kp->ki_iflags = fp->f_iflags; 1952 kp->ki_ftype = fp->f_type; 1953 kp->ki_count = fp->f_count; 1954 kp->ki_msgcount = fp->f_msgcount; 1955 kp->ki_usecount = fp->f_usecount; 1956 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 1957 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 1958 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 1959 kp->ki_fops = PTRTOUINT64(fp->f_ops); 1960 kp->ki_foffset = fp->f_offset; 1961 kp->ki_fdata = PTRTOUINT64(fp->f_data); 1962 1963 /* vnode information to glue this file to something */ 1964 if (fp->f_type == DTYPE_VNODE) { 1965 struct vnode *vp = (struct vnode *)fp->f_data; 1966 1967 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 1968 kp->ki_vsize = vp->v_size; 1969 kp->ki_vtype = vp->v_type; 1970 kp->ki_vtag = vp->v_tag; 1971 kp->ki_vdata = PTRTOUINT64(vp->v_data); 1972 } 1973 1974 /* process information when retrieved via KERN_FILE_BYPID */ 1975 if (p) { 1976 kp->ki_pid = p->p_pid; 1977 kp->ki_fd = i; 1978 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 1979 } 1980 } 1981 1982 static int 1983 sysctl_doeproc(SYSCTLFN_ARGS) 1984 { 1985 struct eproc *eproc; 1986 struct kinfo_proc2 *kproc2; 1987 struct kinfo_proc *dp; 1988 struct proc *p; 1989 const struct proclist_desc *pd; 1990 char *where, *dp2; 1991 int type, op, arg; 1992 u_int elem_size, elem_count; 1993 size_t buflen, needed; 1994 int error; 1995 1996 if (namelen == 1 && name[0] == CTL_QUERY) 1997 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1998 1999 dp = oldp; 2000 dp2 = where = oldp; 2001 buflen = where != NULL ? *oldlenp : 0; 2002 error = 0; 2003 needed = 0; 2004 type = rnode->sysctl_num; 2005 2006 if (type == KERN_PROC) { 2007 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2008 return (EINVAL); 2009 op = name[0]; 2010 if (op != KERN_PROC_ALL) 2011 arg = name[1]; 2012 else 2013 arg = 0; /* Quell compiler warning */ 2014 elem_size = elem_count = 0; /* Ditto */ 2015 } else { 2016 if (namelen != 4) 2017 return (EINVAL); 2018 op = name[0]; 2019 arg = name[1]; 2020 elem_size = name[2]; 2021 elem_count = name[3]; 2022 } 2023 2024 if (type == KERN_PROC) { 2025 eproc = malloc(sizeof(*eproc), M_TEMP, M_WAITOK); 2026 kproc2 = NULL; 2027 } else { 2028 eproc = NULL; 2029 kproc2 = malloc(sizeof(*kproc2), M_TEMP, M_WAITOK); 2030 } 2031 mutex_enter(&proclist_lock); 2032 2033 pd = proclists; 2034 again: 2035 PROCLIST_FOREACH(p, pd->pd_list) { 2036 /* 2037 * Skip embryonic processes. 2038 */ 2039 if (p->p_stat == SIDL) 2040 continue; 2041 2042 if (kauth_authorize_process(l->l_cred, 2043 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2044 continue; 2045 2046 /* 2047 * TODO - make more efficient (see notes below). 2048 * do by session. 2049 */ 2050 switch (op) { 2051 2052 case KERN_PROC_PID: 2053 /* could do this with just a lookup */ 2054 if (p->p_pid != (pid_t)arg) 2055 continue; 2056 break; 2057 2058 case KERN_PROC_PGRP: 2059 /* could do this by traversing pgrp */ 2060 if (p->p_pgrp->pg_id != (pid_t)arg) 2061 continue; 2062 break; 2063 2064 case KERN_PROC_SESSION: 2065 if (p->p_session->s_sid != (pid_t)arg) 2066 continue; 2067 break; 2068 2069 case KERN_PROC_TTY: 2070 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2071 if ((p->p_lflag & PL_CONTROLT) == 0 || 2072 p->p_session->s_ttyp == NULL || 2073 p->p_session->s_ttyvp != NULL) 2074 continue; 2075 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2076 p->p_session->s_ttyp == NULL) { 2077 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2078 continue; 2079 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2080 continue; 2081 break; 2082 2083 case KERN_PROC_UID: 2084 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2085 continue; 2086 break; 2087 2088 case KERN_PROC_RUID: 2089 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2090 continue; 2091 break; 2092 2093 case KERN_PROC_GID: 2094 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2095 continue; 2096 break; 2097 2098 case KERN_PROC_RGID: 2099 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2100 continue; 2101 break; 2102 2103 case KERN_PROC_ALL: 2104 /* allow everything */ 2105 break; 2106 2107 default: 2108 error = EINVAL; 2109 goto cleanup; 2110 } 2111 if (type == KERN_PROC) { 2112 if (buflen >= sizeof(struct kinfo_proc)) { 2113 fill_eproc(p, eproc); 2114 error = dcopyout(l, p, &dp->kp_proc, 2115 sizeof(struct proc)); 2116 if (error) 2117 goto cleanup; 2118 error = dcopyout(l, eproc, &dp->kp_eproc, 2119 sizeof(*eproc)); 2120 if (error) 2121 goto cleanup; 2122 dp++; 2123 buflen -= sizeof(struct kinfo_proc); 2124 } 2125 needed += sizeof(struct kinfo_proc); 2126 } else { /* KERN_PROC2 */ 2127 if (buflen >= elem_size && elem_count > 0) { 2128 fill_kproc2(p, kproc2); 2129 /* 2130 * Copy out elem_size, but not larger than 2131 * the size of a struct kinfo_proc2. 2132 */ 2133 error = dcopyout(l, kproc2, dp2, 2134 min(sizeof(*kproc2), elem_size)); 2135 if (error) 2136 goto cleanup; 2137 dp2 += elem_size; 2138 buflen -= elem_size; 2139 elem_count--; 2140 } 2141 needed += elem_size; 2142 } 2143 } 2144 pd++; 2145 if (pd->pd_list != NULL) 2146 goto again; 2147 mutex_exit(&proclist_lock); 2148 2149 if (where != NULL) { 2150 if (type == KERN_PROC) 2151 *oldlenp = (char *)dp - where; 2152 else 2153 *oldlenp = dp2 - where; 2154 if (needed > *oldlenp) { 2155 error = ENOMEM; 2156 goto out; 2157 } 2158 } else { 2159 needed += KERN_PROCSLOP; 2160 *oldlenp = needed; 2161 } 2162 if (kproc2) 2163 free(kproc2, M_TEMP); 2164 if (eproc) 2165 free(eproc, M_TEMP); 2166 return 0; 2167 cleanup: 2168 mutex_exit(&proclist_lock); 2169 out: 2170 if (kproc2) 2171 free(kproc2, M_TEMP); 2172 if (eproc) 2173 free(eproc, M_TEMP); 2174 return error; 2175 } 2176 2177 /* 2178 * sysctl helper routine for kern.proc_args pseudo-subtree. 2179 */ 2180 static int 2181 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2182 { 2183 struct ps_strings pss; 2184 struct proc *p; 2185 size_t len, i; 2186 struct uio auio; 2187 struct iovec aiov; 2188 pid_t pid; 2189 int nargv, type, error; 2190 char *arg; 2191 char **argv = NULL; 2192 char *tmp; 2193 struct vmspace *vmspace; 2194 vaddr_t psstr_addr; 2195 vaddr_t offsetn; 2196 vaddr_t offsetv; 2197 2198 if (namelen == 1 && name[0] == CTL_QUERY) 2199 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2200 2201 if (newp != NULL || namelen != 2) 2202 return (EINVAL); 2203 pid = name[0]; 2204 type = name[1]; 2205 2206 switch (type) { 2207 case KERN_PROC_ARGV: 2208 case KERN_PROC_NARGV: 2209 case KERN_PROC_ENV: 2210 case KERN_PROC_NENV: 2211 /* ok */ 2212 break; 2213 default: 2214 return (EINVAL); 2215 } 2216 2217 mutex_enter(&proclist_lock); 2218 2219 /* check pid */ 2220 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2221 error = EINVAL; 2222 goto out_locked; 2223 } 2224 2225 error = kauth_authorize_process(l->l_cred, 2226 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2227 if (error) { 2228 goto out_locked; 2229 } 2230 2231 /* only root or same user change look at the environment */ 2232 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2233 if (kauth_authorize_generic(l->l_cred, KAUTH_GENERIC_ISSUSER, 2234 NULL) != 0) { 2235 if (kauth_cred_getuid(l->l_cred) != 2236 kauth_cred_getuid(p->p_cred) || 2237 kauth_cred_getuid(l->l_cred) != 2238 kauth_cred_getsvuid(p->p_cred)) { 2239 error = EPERM; 2240 goto out_locked; 2241 } 2242 } 2243 } 2244 2245 if (oldp == NULL) { 2246 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2247 *oldlenp = sizeof (int); 2248 else 2249 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2250 error = 0; 2251 goto out_locked; 2252 } 2253 2254 /* 2255 * Zombies don't have a stack, so we can't read their psstrings. 2256 * System processes also don't have a user stack. 2257 */ 2258 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2259 error = EINVAL; 2260 goto out_locked; 2261 } 2262 2263 /* 2264 * Lock the process down in memory. 2265 */ 2266 /* XXXCDC: how should locking work here? */ 2267 if ((l->l_flag & LW_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2268 error = EFAULT; 2269 goto out_locked; 2270 } 2271 2272 psstr_addr = (vaddr_t)p->p_psstr; 2273 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2274 offsetn = p->p_psnargv; 2275 offsetv = p->p_psargv; 2276 } else { 2277 offsetn = p->p_psnenv; 2278 offsetv = p->p_psenv; 2279 } 2280 vmspace = p->p_vmspace; 2281 vmspace->vm_refcnt++; /* XXX */ 2282 2283 mutex_exit(&proclist_lock); 2284 2285 /* 2286 * Allocate a temporary buffer to hold the arguments. 2287 */ 2288 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2289 2290 /* 2291 * Read in the ps_strings structure. 2292 */ 2293 aiov.iov_base = &pss; 2294 aiov.iov_len = sizeof(pss); 2295 auio.uio_iov = &aiov; 2296 auio.uio_iovcnt = 1; 2297 auio.uio_offset = psstr_addr; 2298 auio.uio_resid = sizeof(pss); 2299 auio.uio_rw = UIO_READ; 2300 UIO_SETUP_SYSSPACE(&auio); 2301 error = uvm_io(&vmspace->vm_map, &auio); 2302 if (error) 2303 goto done; 2304 2305 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2306 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2307 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2308 *oldlenp = sizeof(nargv); 2309 goto done; 2310 } 2311 /* 2312 * Now read the address of the argument vector. 2313 */ 2314 switch (type) { 2315 case KERN_PROC_ARGV: 2316 /* FALLTHROUGH */ 2317 case KERN_PROC_ENV: 2318 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2319 break; 2320 default: 2321 return (EINVAL); 2322 } 2323 2324 #ifdef COMPAT_NETBSD32 2325 if (p->p_flag & PK_32) 2326 len = sizeof(netbsd32_charp) * nargv; 2327 else 2328 #endif 2329 len = sizeof(char *) * nargv; 2330 2331 argv = malloc(len, M_TEMP, M_WAITOK); 2332 2333 aiov.iov_base = argv; 2334 aiov.iov_len = len; 2335 auio.uio_iov = &aiov; 2336 auio.uio_iovcnt = 1; 2337 auio.uio_offset = (off_t)(unsigned long)tmp; 2338 auio.uio_resid = len; 2339 auio.uio_rw = UIO_READ; 2340 UIO_SETUP_SYSSPACE(&auio); 2341 error = uvm_io(&vmspace->vm_map, &auio); 2342 if (error) 2343 goto done; 2344 2345 /* 2346 * Now copy each string. 2347 */ 2348 len = 0; /* bytes written to user buffer */ 2349 for (i = 0; i < nargv; i++) { 2350 int finished = 0; 2351 vaddr_t base; 2352 size_t xlen; 2353 int j; 2354 2355 #ifdef COMPAT_NETBSD32 2356 if (p->p_flag & PK_32) { 2357 netbsd32_charp *argv32; 2358 2359 argv32 = (netbsd32_charp *)argv; 2360 2361 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2362 } else 2363 #endif 2364 base = (vaddr_t)argv[i]; 2365 2366 /* 2367 * The program has messed around with its arguments, 2368 * possibly deleting some, and replacing them with 2369 * NULL's. Treat this as the last argument and not 2370 * a failure. 2371 */ 2372 if (base == 0) 2373 break; 2374 2375 while (!finished) { 2376 xlen = PAGE_SIZE - (base & PAGE_MASK); 2377 2378 aiov.iov_base = arg; 2379 aiov.iov_len = PAGE_SIZE; 2380 auio.uio_iov = &aiov; 2381 auio.uio_iovcnt = 1; 2382 auio.uio_offset = base; 2383 auio.uio_resid = xlen; 2384 auio.uio_rw = UIO_READ; 2385 UIO_SETUP_SYSSPACE(&auio); 2386 error = uvm_io(&vmspace->vm_map, &auio); 2387 if (error) 2388 goto done; 2389 2390 /* Look for the end of the string */ 2391 for (j = 0; j < xlen; j++) { 2392 if (arg[j] == '\0') { 2393 xlen = j + 1; 2394 finished = 1; 2395 break; 2396 } 2397 } 2398 2399 /* Check for user buffer overflow */ 2400 if (len + xlen > *oldlenp) { 2401 finished = 1; 2402 if (len > *oldlenp) 2403 xlen = 0; 2404 else 2405 xlen = *oldlenp - len; 2406 } 2407 2408 /* Copyout the page */ 2409 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2410 if (error) 2411 goto done; 2412 2413 len += xlen; 2414 base += xlen; 2415 } 2416 } 2417 *oldlenp = len; 2418 2419 done: 2420 if (argv != NULL) 2421 free(argv, M_TEMP); 2422 2423 uvmspace_free(vmspace); 2424 2425 free(arg, M_TEMP); 2426 return error; 2427 2428 out_locked: 2429 mutex_exit(&proclist_lock); 2430 return error; 2431 } 2432 2433 static int 2434 sysctl_security_setidcore(SYSCTLFN_ARGS) 2435 { 2436 int newsize, error; 2437 struct sysctlnode node; 2438 2439 node = *rnode; 2440 node.sysctl_data = &newsize; 2441 newsize = *(int *)rnode->sysctl_data; 2442 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2443 if (error || newp == NULL) 2444 return error; 2445 2446 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2447 0, NULL, NULL, NULL)) 2448 return (EPERM); 2449 2450 *(int *)rnode->sysctl_data = newsize; 2451 2452 return 0; 2453 } 2454 2455 static int 2456 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2457 { 2458 int error; 2459 char *newsetidcorename; 2460 struct sysctlnode node; 2461 2462 newsetidcorename = PNBUF_GET(); 2463 node = *rnode; 2464 node.sysctl_data = newsetidcorename; 2465 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2466 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2467 if (error || newp == NULL) { 2468 goto out; 2469 } 2470 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2471 0, NULL, NULL, NULL)) { 2472 error = EPERM; 2473 goto out; 2474 } 2475 if (strlen(newsetidcorename) == 0) { 2476 error = EINVAL; 2477 goto out; 2478 } 2479 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2480 out: 2481 PNBUF_PUT(newsetidcorename); 2482 return error; 2483 } 2484 2485 /* 2486 * sysctl helper routine for kern.cp_id node. Maps cpus to their 2487 * cpuids. 2488 */ 2489 static int 2490 sysctl_kern_cpid(SYSCTLFN_ARGS) 2491 { 2492 struct sysctlnode node = *rnode; 2493 2494 #ifndef MULTIPROCESSOR 2495 uint64_t id; 2496 2497 if (namelen == 1) { 2498 if (name[0] != 0) 2499 return (ENOENT); 2500 /* 2501 * you're allowed to ask for the zero'th processor 2502 */ 2503 name++; 2504 namelen--; 2505 } 2506 node.sysctl_data = &id; 2507 node.sysctl_size = sizeof(id); 2508 id = cpu_number(); 2509 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2510 2511 #else /* MULTIPROCESSOR */ 2512 uint64_t *cp_id = NULL; 2513 int error, n = ncpu; 2514 struct cpu_info *ci; 2515 CPU_INFO_ITERATOR cii; 2516 2517 /* 2518 * Here you may either retrieve a single cpu id or the whole 2519 * set. The size you get back when probing depends on what 2520 * you ask for. 2521 */ 2522 switch (namelen) { 2523 case 0: 2524 node.sysctl_size = n * sizeof(uint64_t); 2525 n = -2; /* ALL */ 2526 break; 2527 case 1: 2528 if (name[0] < 0 || name[0] >= n) 2529 return (ENOENT); /* ENOSUCHPROCESSOR */ 2530 node.sysctl_size = sizeof(uint64_t); 2531 n = name[0]; 2532 /* 2533 * adjust these so that sysctl_lookup() will be happy 2534 */ 2535 name++; 2536 namelen--; 2537 break; 2538 default: 2539 return (EINVAL); 2540 } 2541 2542 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2543 if (cp_id == NULL) 2544 return (ENOMEM); 2545 node.sysctl_data = cp_id; 2546 memset(cp_id, 0, node.sysctl_size); 2547 2548 for (CPU_INFO_FOREACH(cii, ci)) { 2549 if (n <= 0) 2550 cp_id[0] = ci->ci_cpuid; 2551 /* 2552 * if a specific processor was requested and we just 2553 * did it, we're done here 2554 */ 2555 if (n == 0) 2556 break; 2557 /* 2558 * if doing "all", skip to next cp_id slot for next processor 2559 */ 2560 if (n == -2) 2561 cp_id++; 2562 /* 2563 * if we're doing a specific processor, we're one 2564 * processor closer 2565 */ 2566 if (n > 0) 2567 n--; 2568 } 2569 2570 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2571 free(node.sysctl_data, M_TEMP); 2572 return (error); 2573 2574 #endif /* MULTIPROCESSOR */ 2575 } 2576 2577 /* 2578 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 2579 * calculate on the fly taking into account integer overflow and the 2580 * current wired count. 2581 */ 2582 static int 2583 sysctl_hw_usermem(SYSCTLFN_ARGS) 2584 { 2585 u_int ui; 2586 u_quad_t uq; 2587 struct sysctlnode node; 2588 2589 node = *rnode; 2590 switch (rnode->sysctl_num) { 2591 case HW_USERMEM: 2592 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2593 ui = UINT_MAX; 2594 else 2595 ui *= PAGE_SIZE; 2596 node.sysctl_data = &ui; 2597 break; 2598 case HW_USERMEM64: 2599 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2600 node.sysctl_data = &uq; 2601 break; 2602 default: 2603 return (EINVAL); 2604 } 2605 2606 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2607 } 2608 2609 /* 2610 * sysctl helper routine for kern.cnmagic node. Pulls the old value 2611 * out, encoded, and stuffs the new value in for decoding. 2612 */ 2613 static int 2614 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2615 { 2616 char magic[CNS_LEN]; 2617 int error; 2618 struct sysctlnode node; 2619 2620 if (oldp) 2621 cn_get_magic(magic, CNS_LEN); 2622 node = *rnode; 2623 node.sysctl_data = &magic[0]; 2624 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2625 if (error || newp == NULL) 2626 return (error); 2627 2628 return (cn_set_magic(magic)); 2629 } 2630 2631 /* 2632 * ******************************************************************** 2633 * section 3: public helper routines that are used for more than one 2634 * node 2635 * ******************************************************************** 2636 */ 2637 2638 /* 2639 * sysctl helper routine for the kern.root_device node and some ports' 2640 * machdep.root_device nodes. 2641 */ 2642 int 2643 sysctl_root_device(SYSCTLFN_ARGS) 2644 { 2645 struct sysctlnode node; 2646 2647 node = *rnode; 2648 node.sysctl_data = root_device->dv_xname; 2649 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2650 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2651 } 2652 2653 /* 2654 * sysctl helper routine for kern.consdev, dependent on the current 2655 * state of the console. Also used for machdep.console_device on some 2656 * ports. 2657 */ 2658 int 2659 sysctl_consdev(SYSCTLFN_ARGS) 2660 { 2661 dev_t consdev; 2662 struct sysctlnode node; 2663 2664 if (cn_tab != NULL) 2665 consdev = cn_tab->cn_dev; 2666 else 2667 consdev = NODEV; 2668 node = *rnode; 2669 node.sysctl_data = &consdev; 2670 node.sysctl_size = sizeof(consdev); 2671 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2672 } 2673 2674 /* 2675 * ******************************************************************** 2676 * section 4: support for some helpers 2677 * ******************************************************************** 2678 */ 2679 2680 /* 2681 * Fill in a kinfo_proc2 structure for the specified process. 2682 */ 2683 static void 2684 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2685 { 2686 struct tty *tp; 2687 struct lwp *l, *l2; 2688 struct timeval ut, st, rt; 2689 sigset_t ss1, ss2; 2690 2691 memset(ki, 0, sizeof(*ki)); 2692 2693 ki->p_paddr = PTRTOUINT64(p); 2694 ki->p_fd = PTRTOUINT64(p->p_fd); 2695 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2696 ki->p_stats = PTRTOUINT64(p->p_stats); 2697 ki->p_limit = PTRTOUINT64(p->p_limit); 2698 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2699 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2700 ki->p_sess = PTRTOUINT64(p->p_session); 2701 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2702 ki->p_ru = PTRTOUINT64(&p->p_stats->p_ru); 2703 2704 ki->p_eflag = 0; 2705 ki->p_exitsig = p->p_exitsig; 2706 2707 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2708 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2709 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2710 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2711 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2712 2713 ki->p_pid = p->p_pid; 2714 if (p->p_pptr) 2715 ki->p_ppid = p->p_pptr->p_pid; 2716 else 2717 ki->p_ppid = 0; 2718 ki->p_sid = p->p_session->s_sid; 2719 ki->p__pgid = p->p_pgrp->pg_id; 2720 2721 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2722 2723 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2724 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2725 ki->p_gid = kauth_cred_getegid(p->p_cred); 2726 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2727 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2728 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2729 2730 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2731 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2732 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0])), 2733 UIO_SYSSPACE); 2734 2735 ki->p_jobc = p->p_pgrp->pg_jobc; 2736 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2737 ki->p_tdev = tp->t_dev; 2738 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2739 ki->p_tsess = PTRTOUINT64(tp->t_session); 2740 } else { 2741 ki->p_tdev = NODEV; 2742 } 2743 2744 2745 mutex_enter(&p->p_smutex); 2746 2747 ki->p_uticks = p->p_uticks; 2748 ki->p_sticks = p->p_sticks; 2749 ki->p_iticks = p->p_iticks; 2750 2751 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2752 ki->p_traceflag = p->p_traceflag; 2753 2754 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2755 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2756 2757 ki->p_cpticks = 0; 2758 ki->p_pctcpu = p->p_pctcpu; 2759 ki->p_estcpu = 0; 2760 ss1 = p->p_sigpend.sp_set; 2761 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2762 /* This is hardly correct, but... */ 2763 sigplusset(&l->l_sigpend.sp_set, &ss1); 2764 sigplusset(&l->l_sigmask, &ss2); 2765 ki->p_cpticks += l->l_cpticks; 2766 ki->p_pctcpu += l->l_pctcpu; 2767 ki->p_estcpu += l->l_estcpu; 2768 } 2769 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2770 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2771 2772 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2773 ki->p_realstat = p->p_stat; 2774 ki->p_nice = p->p_nice; 2775 2776 ki->p_xstat = p->p_xstat; 2777 ki->p_acflag = p->p_acflag; 2778 2779 strncpy(ki->p_comm, p->p_comm, 2780 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2781 2782 strncpy(ki->p_login, p->p_session->s_login, 2783 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2784 2785 ki->p_nlwps = p->p_nlwps; 2786 ki->p_realflag = ki->p_flag; 2787 2788 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2789 ki->p_vm_rssize = 0; 2790 ki->p_vm_tsize = 0; 2791 ki->p_vm_dsize = 0; 2792 ki->p_vm_ssize = 0; 2793 ki->p_nrlwps = 0; 2794 l = NULL; 2795 } else { 2796 struct vmspace *vm = p->p_vmspace; 2797 int tmp; 2798 2799 ki->p_vm_rssize = vm_resident_count(vm); 2800 ki->p_vm_tsize = vm->vm_tsize; 2801 ki->p_vm_dsize = vm->vm_dsize; 2802 ki->p_vm_ssize = vm->vm_ssize; 2803 2804 /* Pick a "representative" LWP */ 2805 l = proc_representative_lwp(p, &tmp, 1); 2806 lwp_lock(l); 2807 ki->p_nrlwps = tmp; 2808 ki->p_forw = 0; 2809 ki->p_back = 0; 2810 ki->p_addr = PTRTOUINT64(l->l_addr); 2811 ki->p_stat = l->l_stat; 2812 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2813 ki->p_swtime = l->l_swtime; 2814 ki->p_slptime = l->l_slptime; 2815 if (l->l_stat == LSONPROC) 2816 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2817 else 2818 ki->p_schedflags = 0; 2819 ki->p_holdcnt = l->l_holdcnt; 2820 ki->p_priority = lwp_eprio(l); 2821 ki->p_usrpri = l->l_priority; 2822 if (l->l_wmesg) 2823 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2824 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2825 lwp_unlock(l); 2826 } 2827 if (p->p_session->s_ttyvp) 2828 ki->p_eflag |= EPROC_CTTY; 2829 if (SESS_LEADER(p)) 2830 ki->p_eflag |= EPROC_SLEADER; 2831 2832 /* XXX Is this double check necessary? */ 2833 if (P_ZOMBIE(p)) { 2834 ki->p_uvalid = 0; 2835 ki->p_rtime_sec = 0; 2836 ki->p_rtime_usec = 0; 2837 } else { 2838 ki->p_uvalid = 1; 2839 2840 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2841 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2842 2843 calcru(p, &ut, &st, NULL, &rt); 2844 ki->p_rtime_sec = rt.tv_sec; 2845 ki->p_rtime_usec = rt.tv_usec; 2846 ki->p_uutime_sec = ut.tv_sec; 2847 ki->p_uutime_usec = ut.tv_usec; 2848 ki->p_ustime_sec = st.tv_sec; 2849 ki->p_ustime_usec = st.tv_usec; 2850 2851 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2852 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2853 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2854 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2855 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2856 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2857 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2858 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2859 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2860 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2861 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2862 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2863 2864 ki->p_uru_nvcsw = 0; 2865 ki->p_uru_nivcsw = 0; 2866 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 2867 ki->p_uru_nvcsw += (l->l_ncsw - l->l_nivcsw); 2868 ki->p_uru_nivcsw += l->l_nivcsw; 2869 } 2870 2871 timeradd(&p->p_stats->p_cru.ru_utime, 2872 &p->p_stats->p_cru.ru_stime, &ut); 2873 ki->p_uctime_sec = ut.tv_sec; 2874 ki->p_uctime_usec = ut.tv_usec; 2875 } 2876 #ifdef MULTIPROCESSOR 2877 if (l != NULL) 2878 ki->p_cpuid = l->l_cpu->ci_cpuid; 2879 else 2880 #endif 2881 ki->p_cpuid = KI_NOCPU; 2882 2883 mutex_exit(&p->p_smutex); 2884 } 2885 2886 /* 2887 * Fill in a kinfo_lwp structure for the specified lwp. 2888 */ 2889 static void 2890 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2891 { 2892 struct proc *p = l->l_proc; 2893 2894 kl->l_forw = 0; 2895 kl->l_back = 0; 2896 kl->l_laddr = PTRTOUINT64(l); 2897 kl->l_addr = PTRTOUINT64(l->l_addr); 2898 kl->l_stat = l->l_stat; 2899 kl->l_lid = l->l_lid; 2900 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 2901 2902 kl->l_swtime = l->l_swtime; 2903 kl->l_slptime = l->l_slptime; 2904 if (l->l_stat == LSONPROC) 2905 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2906 else 2907 kl->l_schedflags = 0; 2908 kl->l_holdcnt = l->l_holdcnt; 2909 kl->l_priority = lwp_eprio(l); 2910 kl->l_usrpri = l->l_priority; 2911 if (l->l_wmesg) 2912 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2913 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2914 #ifdef MULTIPROCESSOR 2915 kl->l_cpuid = l->l_cpu->ci_cpuid; 2916 #else 2917 kl->l_cpuid = KI_NOCPU; 2918 #endif 2919 kl->l_rtime_sec = l->l_rtime.tv_sec; 2920 kl->l_rtime_usec = l->l_rtime.tv_usec; 2921 kl->l_cpticks = l->l_cpticks; 2922 kl->l_pctcpu = l->l_pctcpu; 2923 kl->l_pid = p->p_pid; 2924 if (l->l_name == NULL) 2925 kl->l_name[0] = '\0'; 2926 else 2927 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 2928 } 2929 2930 /* 2931 * Fill in an eproc structure for the specified process. 2932 */ 2933 void 2934 fill_eproc(struct proc *p, struct eproc *ep) 2935 { 2936 struct tty *tp; 2937 struct lwp *l; 2938 2939 ep->e_paddr = p; 2940 ep->e_sess = p->p_session; 2941 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 2942 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 2943 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2944 ep->e_vm.vm_rssize = 0; 2945 ep->e_vm.vm_tsize = 0; 2946 ep->e_vm.vm_dsize = 0; 2947 ep->e_vm.vm_ssize = 0; 2948 /* ep->e_vm.vm_pmap = XXX; */ 2949 } else { 2950 struct vmspace *vm = p->p_vmspace; 2951 2952 ep->e_vm.vm_rssize = vm_resident_count(vm); 2953 ep->e_vm.vm_tsize = vm->vm_tsize; 2954 ep->e_vm.vm_dsize = vm->vm_dsize; 2955 ep->e_vm.vm_ssize = vm->vm_ssize; 2956 2957 /* Pick a "representative" LWP */ 2958 mutex_enter(&p->p_smutex); 2959 l = proc_representative_lwp(p, NULL, 1); 2960 lwp_lock(l); 2961 if (l->l_wmesg) 2962 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2963 lwp_unlock(l); 2964 mutex_exit(&p->p_smutex); 2965 } 2966 if (p->p_pptr) 2967 ep->e_ppid = p->p_pptr->p_pid; 2968 else 2969 ep->e_ppid = 0; 2970 ep->e_pgid = p->p_pgrp->pg_id; 2971 ep->e_sid = ep->e_sess->s_sid; 2972 ep->e_jobc = p->p_pgrp->pg_jobc; 2973 if ((p->p_lflag & PL_CONTROLT) && 2974 (tp = ep->e_sess->s_ttyp)) { 2975 ep->e_tdev = tp->t_dev; 2976 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2977 ep->e_tsess = tp->t_session; 2978 } else 2979 ep->e_tdev = NODEV; 2980 2981 ep->e_xsize = ep->e_xrssize = 0; 2982 ep->e_xccount = ep->e_xswrss = 0; 2983 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2984 if (SESS_LEADER(p)) 2985 ep->e_flag |= EPROC_SLEADER; 2986 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2987 } 2988 2989 u_int 2990 sysctl_map_flags(const u_int *map, u_int word) 2991 { 2992 u_int rv; 2993 2994 for (rv = 0; *map != 0; map += 2) 2995 if ((word & map[0]) != 0) 2996 rv |= map[1]; 2997 2998 return rv; 2999 } 3000