init_sysctl.c revision 1.116
1 /* $NetBSD: init_sysctl.c,v 1.116 2007/12/26 22:11:48 christos 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 1.116 2007/12/26 22:11:48 christos 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_SYSTRACE, P_SYSTRACE, 98 PK_SUGID, P_SUGID, 99 0 100 }; 101 102 static const u_int sysctl_sflagmap[] = { 103 PS_NOCLDSTOP, P_NOCLDSTOP, 104 PS_PPWAIT, P_PPWAIT, 105 PS_WEXIT, P_WEXIT, 106 PS_STOPFORK, P_STOPFORK, 107 PS_STOPEXEC, P_STOPEXEC, 108 PS_STOPEXIT, P_STOPEXIT, 109 0 110 }; 111 112 static const u_int sysctl_slflagmap[] = { 113 PSL_TRACED, P_TRACED, 114 PSL_FSTRACE, P_FSTRACE, 115 PSL_CHTRACED, P_CHTRACED, 116 PSL_SYSCALL, P_SYSCALL, 117 0 118 }; 119 120 static const u_int sysctl_lflagmap[] = { 121 PL_CONTROLT, P_CONTROLT, 122 0 123 }; 124 125 static const u_int sysctl_stflagmap[] = { 126 PST_PROFIL, P_PROFIL, 127 0 128 129 }; 130 131 static const u_int sysctl_lwpflagmap[] = { 132 LW_INMEM, P_INMEM, 133 LW_SINTR, P_SINTR, 134 LW_SYSTEM, P_SYSTEM, 135 0 136 }; 137 138 static const u_int sysctl_lwpprflagmap[] = { 139 LPR_DETACHED, L_DETACHED, 140 0 141 }; 142 143 144 /* 145 * try over estimating by 5 procs/lwps 146 */ 147 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 148 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 149 150 static int dcopyout(struct lwp *, const void *, void *, size_t); 151 152 static int 153 dcopyout(l, kaddr, uaddr, len) 154 struct lwp *l; 155 const void *kaddr; 156 void *uaddr; 157 size_t len; 158 { 159 int error; 160 161 error = copyout(kaddr, uaddr, len); 162 ktrmibio(-1, UIO_READ, uaddr, len, error); 163 164 return error; 165 } 166 167 #ifdef DIAGNOSTIC 168 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 169 #endif 170 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 171 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 172 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 173 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 174 static int sysctl_setlen(SYSCTLFN_PROTO); 175 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 176 static int sysctl_kern_file(SYSCTLFN_PROTO); 177 static int sysctl_msgbuf(SYSCTLFN_PROTO); 178 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 179 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 180 #if NPTY > 0 181 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 182 #endif /* NPTY > 0 */ 183 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 184 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 185 static int sysctl_kern_arnd(SYSCTLFN_PROTO); 186 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 187 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 188 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 189 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 190 static int sysctl_kern_file2(SYSCTLFN_PROTO); 191 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 192 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 193 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 194 static int sysctl_doeproc(SYSCTLFN_PROTO); 195 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 196 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 197 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 198 199 static u_int sysctl_map_flags(const u_int *, u_int); 200 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 201 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 202 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 203 int); 204 205 /* 206 * ******************************************************************** 207 * section 1: setup routines 208 * ******************************************************************** 209 * These functions are stuffed into a link set for sysctl setup 210 * functions. They're never called or referenced from anywhere else. 211 * ******************************************************************** 212 */ 213 214 /* 215 * sets up the base nodes... 216 */ 217 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 218 { 219 220 sysctl_createv(clog, 0, NULL, NULL, 221 CTLFLAG_PERMANENT, 222 CTLTYPE_NODE, "kern", 223 SYSCTL_DESCR("High kernel"), 224 NULL, 0, NULL, 0, 225 CTL_KERN, CTL_EOL); 226 sysctl_createv(clog, 0, NULL, NULL, 227 CTLFLAG_PERMANENT, 228 CTLTYPE_NODE, "vm", 229 SYSCTL_DESCR("Virtual memory"), 230 NULL, 0, NULL, 0, 231 CTL_VM, CTL_EOL); 232 sysctl_createv(clog, 0, NULL, NULL, 233 CTLFLAG_PERMANENT, 234 CTLTYPE_NODE, "vfs", 235 SYSCTL_DESCR("Filesystem"), 236 NULL, 0, NULL, 0, 237 CTL_VFS, CTL_EOL); 238 sysctl_createv(clog, 0, NULL, NULL, 239 CTLFLAG_PERMANENT, 240 CTLTYPE_NODE, "net", 241 SYSCTL_DESCR("Networking"), 242 NULL, 0, NULL, 0, 243 CTL_NET, CTL_EOL); 244 sysctl_createv(clog, 0, NULL, NULL, 245 CTLFLAG_PERMANENT, 246 CTLTYPE_NODE, "debug", 247 SYSCTL_DESCR("Debugging"), 248 NULL, 0, NULL, 0, 249 CTL_DEBUG, CTL_EOL); 250 sysctl_createv(clog, 0, NULL, NULL, 251 CTLFLAG_PERMANENT, 252 CTLTYPE_NODE, "hw", 253 SYSCTL_DESCR("Generic CPU, I/O"), 254 NULL, 0, NULL, 0, 255 CTL_HW, CTL_EOL); 256 sysctl_createv(clog, 0, NULL, NULL, 257 CTLFLAG_PERMANENT, 258 CTLTYPE_NODE, "machdep", 259 SYSCTL_DESCR("Machine dependent"), 260 NULL, 0, NULL, 0, 261 CTL_MACHDEP, CTL_EOL); 262 /* 263 * this node is inserted so that the sysctl nodes in libc can 264 * operate. 265 */ 266 sysctl_createv(clog, 0, NULL, NULL, 267 CTLFLAG_PERMANENT, 268 CTLTYPE_NODE, "user", 269 SYSCTL_DESCR("User-level"), 270 NULL, 0, NULL, 0, 271 CTL_USER, CTL_EOL); 272 sysctl_createv(clog, 0, NULL, NULL, 273 CTLFLAG_PERMANENT, 274 CTLTYPE_NODE, "ddb", 275 SYSCTL_DESCR("In-kernel debugger"), 276 NULL, 0, NULL, 0, 277 CTL_DDB, CTL_EOL); 278 sysctl_createv(clog, 0, NULL, NULL, 279 CTLFLAG_PERMANENT, 280 CTLTYPE_NODE, "proc", 281 SYSCTL_DESCR("Per-process"), 282 NULL, 0, NULL, 0, 283 CTL_PROC, CTL_EOL); 284 sysctl_createv(clog, 0, NULL, NULL, 285 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 286 CTLTYPE_NODE, "vendor", 287 SYSCTL_DESCR("Vendor specific"), 288 NULL, 0, NULL, 0, 289 CTL_VENDOR, CTL_EOL); 290 sysctl_createv(clog, 0, NULL, NULL, 291 CTLFLAG_PERMANENT, 292 CTLTYPE_NODE, "emul", 293 SYSCTL_DESCR("Emulation settings"), 294 NULL, 0, NULL, 0, 295 CTL_EMUL, CTL_EOL); 296 sysctl_createv(clog, 0, NULL, NULL, 297 CTLFLAG_PERMANENT, 298 CTLTYPE_NODE, "security", 299 SYSCTL_DESCR("Security"), 300 NULL, 0, NULL, 0, 301 CTL_SECURITY, CTL_EOL); 302 } 303 304 /* 305 * this setup routine is a replacement for kern_sysctl() 306 */ 307 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 308 { 309 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 310 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 311 extern int dumponpanic; /* defined in kern/subr_prf.c */ 312 const struct sysctlnode *rnode; 313 314 sysctl_createv(clog, 0, NULL, NULL, 315 CTLFLAG_PERMANENT, 316 CTLTYPE_NODE, "kern", NULL, 317 NULL, 0, NULL, 0, 318 CTL_KERN, CTL_EOL); 319 320 sysctl_createv(clog, 0, NULL, NULL, 321 CTLFLAG_PERMANENT, 322 CTLTYPE_STRING, "ostype", 323 SYSCTL_DESCR("Operating system type"), 324 NULL, 0, &ostype, 0, 325 CTL_KERN, KERN_OSTYPE, CTL_EOL); 326 sysctl_createv(clog, 0, NULL, NULL, 327 CTLFLAG_PERMANENT, 328 CTLTYPE_STRING, "osrelease", 329 SYSCTL_DESCR("Operating system release"), 330 NULL, 0, &osrelease, 0, 331 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 332 sysctl_createv(clog, 0, NULL, NULL, 333 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 334 CTLTYPE_INT, "osrevision", 335 SYSCTL_DESCR("Operating system revision"), 336 NULL, __NetBSD_Version__, NULL, 0, 337 CTL_KERN, KERN_OSREV, CTL_EOL); 338 sysctl_createv(clog, 0, NULL, NULL, 339 CTLFLAG_PERMANENT, 340 CTLTYPE_STRING, "version", 341 SYSCTL_DESCR("Kernel version"), 342 NULL, 0, &version, 0, 343 CTL_KERN, KERN_VERSION, CTL_EOL); 344 sysctl_createv(clog, 0, NULL, NULL, 345 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 346 CTLTYPE_INT, "maxvnodes", 347 SYSCTL_DESCR("Maximum number of vnodes"), 348 sysctl_kern_maxvnodes, 0, NULL, 0, 349 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 350 sysctl_createv(clog, 0, NULL, NULL, 351 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 352 CTLTYPE_INT, "maxproc", 353 SYSCTL_DESCR("Maximum number of simultaneous processes"), 354 sysctl_kern_maxproc, 0, NULL, 0, 355 CTL_KERN, KERN_MAXPROC, CTL_EOL); 356 sysctl_createv(clog, 0, NULL, NULL, 357 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 358 CTLTYPE_INT, "maxfiles", 359 SYSCTL_DESCR("Maximum number of open files"), 360 NULL, 0, &maxfiles, 0, 361 CTL_KERN, KERN_MAXFILES, CTL_EOL); 362 sysctl_createv(clog, 0, NULL, NULL, 363 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 364 CTLTYPE_INT, "argmax", 365 SYSCTL_DESCR("Maximum number of bytes of arguments to " 366 "execve(2)"), 367 NULL, ARG_MAX, NULL, 0, 368 CTL_KERN, KERN_ARGMAX, CTL_EOL); 369 sysctl_createv(clog, 0, NULL, NULL, 370 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 371 CTLTYPE_STRING, "hostname", 372 SYSCTL_DESCR("System hostname"), 373 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 374 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 375 sysctl_createv(clog, 0, NULL, NULL, 376 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 377 CTLTYPE_INT, "hostid", 378 SYSCTL_DESCR("System host ID number"), 379 sysctl_kern_hostid, 0, NULL, 0, 380 CTL_KERN, KERN_HOSTID, CTL_EOL); 381 sysctl_createv(clog, 0, NULL, NULL, 382 CTLFLAG_PERMANENT, 383 CTLTYPE_STRUCT, "clockrate", 384 SYSCTL_DESCR("Kernel clock rates"), 385 sysctl_kern_clockrate, 0, NULL, 386 sizeof(struct clockinfo), 387 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 388 sysctl_createv(clog, 0, NULL, NULL, 389 CTLFLAG_PERMANENT, 390 CTLTYPE_INT, "hardclock_ticks", 391 SYSCTL_DESCR("Number of hardclock ticks"), 392 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 393 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 394 sysctl_createv(clog, 0, NULL, NULL, 395 CTLFLAG_PERMANENT, 396 CTLTYPE_STRUCT, "vnode", 397 SYSCTL_DESCR("System vnode table"), 398 sysctl_kern_vnode, 0, NULL, 0, 399 CTL_KERN, KERN_VNODE, CTL_EOL); 400 sysctl_createv(clog, 0, NULL, NULL, 401 CTLFLAG_PERMANENT, 402 CTLTYPE_STRUCT, "file", 403 SYSCTL_DESCR("System open file table"), 404 sysctl_kern_file, 0, NULL, 0, 405 CTL_KERN, KERN_FILE, CTL_EOL); 406 #ifndef GPROF 407 sysctl_createv(clog, 0, NULL, NULL, 408 CTLFLAG_PERMANENT, 409 CTLTYPE_NODE, "profiling", 410 SYSCTL_DESCR("Profiling information (not available)"), 411 sysctl_notavail, 0, NULL, 0, 412 CTL_KERN, KERN_PROF, CTL_EOL); 413 #endif 414 sysctl_createv(clog, 0, NULL, NULL, 415 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 416 CTLTYPE_INT, "posix1version", 417 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 418 "with which the operating system attempts " 419 "to comply"), 420 NULL, _POSIX_VERSION, NULL, 0, 421 CTL_KERN, KERN_POSIX1, CTL_EOL); 422 sysctl_createv(clog, 0, NULL, NULL, 423 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 424 CTLTYPE_INT, "ngroups", 425 SYSCTL_DESCR("Maximum number of supplemental groups"), 426 NULL, NGROUPS_MAX, NULL, 0, 427 CTL_KERN, KERN_NGROUPS, CTL_EOL); 428 sysctl_createv(clog, 0, NULL, NULL, 429 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 430 CTLTYPE_INT, "job_control", 431 SYSCTL_DESCR("Whether job control is available"), 432 NULL, 1, NULL, 0, 433 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 434 sysctl_createv(clog, 0, NULL, NULL, 435 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 436 CTLTYPE_INT, "saved_ids", 437 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 438 "available"), NULL, 439 #ifdef _POSIX_SAVED_IDS 440 1, 441 #else /* _POSIX_SAVED_IDS */ 442 0, 443 #endif /* _POSIX_SAVED_IDS */ 444 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 445 sysctl_createv(clog, 0, NULL, NULL, 446 CTLFLAG_PERMANENT, 447 CTLTYPE_STRUCT, "boottime", 448 SYSCTL_DESCR("System boot time"), 449 NULL, 0, &boottime, sizeof(boottime), 450 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 451 sysctl_createv(clog, 0, NULL, NULL, 452 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 453 CTLTYPE_STRING, "domainname", 454 SYSCTL_DESCR("YP domain name"), 455 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 456 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 457 sysctl_createv(clog, 0, NULL, NULL, 458 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 459 CTLTYPE_INT, "maxpartitions", 460 SYSCTL_DESCR("Maximum number of partitions allowed per " 461 "disk"), 462 NULL, MAXPARTITIONS, NULL, 0, 463 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 464 sysctl_createv(clog, 0, NULL, NULL, 465 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 466 CTLTYPE_INT, "rawpartition", 467 SYSCTL_DESCR("Raw partition of a disk"), 468 NULL, RAW_PART, NULL, 0, 469 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 470 sysctl_createv(clog, 0, NULL, NULL, 471 CTLFLAG_PERMANENT, 472 CTLTYPE_STRUCT, "timex", NULL, 473 sysctl_notavail, 0, NULL, 0, 474 CTL_KERN, KERN_TIMEX, CTL_EOL); 475 sysctl_createv(clog, 0, NULL, NULL, 476 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 477 CTLTYPE_INT, "rtc_offset", 478 SYSCTL_DESCR("Offset of real time clock from UTC in " 479 "minutes"), 480 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 481 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 482 sysctl_createv(clog, 0, NULL, NULL, 483 CTLFLAG_PERMANENT, 484 CTLTYPE_STRING, "root_device", 485 SYSCTL_DESCR("Name of the root device"), 486 sysctl_root_device, 0, NULL, 0, 487 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 488 sysctl_createv(clog, 0, NULL, NULL, 489 CTLFLAG_PERMANENT, 490 CTLTYPE_INT, "msgbufsize", 491 SYSCTL_DESCR("Size of the kernel message buffer"), 492 sysctl_msgbuf, 0, NULL, 0, 493 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 494 sysctl_createv(clog, 0, NULL, NULL, 495 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 496 CTLTYPE_INT, "fsync", 497 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 498 "Synchronization Option is available on " 499 "this system"), 500 NULL, 1, NULL, 0, 501 CTL_KERN, KERN_FSYNC, CTL_EOL); 502 sysctl_createv(clog, 0, NULL, NULL, 503 CTLFLAG_PERMANENT, 504 CTLTYPE_NODE, "ipc", 505 SYSCTL_DESCR("SysV IPC options"), 506 NULL, 0, NULL, 0, 507 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 508 sysctl_createv(clog, 0, NULL, NULL, 509 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 510 CTLTYPE_INT, "sysvmsg", 511 SYSCTL_DESCR("System V style message support available"), 512 NULL, 513 #ifdef SYSVMSG 514 1, 515 #else /* SYSVMSG */ 516 0, 517 #endif /* SYSVMSG */ 518 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 519 sysctl_createv(clog, 0, NULL, NULL, 520 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 521 CTLTYPE_INT, "sysvsem", 522 SYSCTL_DESCR("System V style semaphore support " 523 "available"), NULL, 524 #ifdef SYSVSEM 525 1, 526 #else /* SYSVSEM */ 527 0, 528 #endif /* SYSVSEM */ 529 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 530 sysctl_createv(clog, 0, NULL, NULL, 531 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 532 CTLTYPE_INT, "sysvshm", 533 SYSCTL_DESCR("System V style shared memory support " 534 "available"), NULL, 535 #ifdef SYSVSHM 536 1, 537 #else /* SYSVSHM */ 538 0, 539 #endif /* SYSVSHM */ 540 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 541 sysctl_createv(clog, 0, NULL, NULL, 542 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 543 CTLTYPE_INT, "synchronized_io", 544 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 545 "I/O Option is available on this system"), 546 NULL, 1, NULL, 0, 547 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 548 sysctl_createv(clog, 0, NULL, NULL, 549 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 550 CTLTYPE_INT, "iov_max", 551 SYSCTL_DESCR("Maximum number of iovec structures per " 552 "process"), 553 NULL, IOV_MAX, NULL, 0, 554 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 555 sysctl_createv(clog, 0, NULL, NULL, 556 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 557 CTLTYPE_INT, "mapped_files", 558 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 559 "Files Option is available on this system"), 560 NULL, 1, NULL, 0, 561 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 562 sysctl_createv(clog, 0, NULL, NULL, 563 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 564 CTLTYPE_INT, "memlock", 565 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 566 "Locking Option is available on this " 567 "system"), 568 NULL, 1, NULL, 0, 569 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 570 sysctl_createv(clog, 0, NULL, NULL, 571 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 572 CTLTYPE_INT, "memlock_range", 573 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 574 "Locking Option is available on this " 575 "system"), 576 NULL, 1, NULL, 0, 577 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 578 sysctl_createv(clog, 0, NULL, NULL, 579 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 580 CTLTYPE_INT, "memory_protection", 581 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 582 "Protection Option is available on this " 583 "system"), 584 NULL, 1, NULL, 0, 585 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 586 sysctl_createv(clog, 0, NULL, NULL, 587 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 588 CTLTYPE_INT, "login_name_max", 589 SYSCTL_DESCR("Maximum login name length"), 590 NULL, LOGIN_NAME_MAX, NULL, 0, 591 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 592 sysctl_createv(clog, 0, NULL, NULL, 593 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 594 CTLTYPE_STRING, "defcorename", 595 SYSCTL_DESCR("Default core file name"), 596 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 597 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 598 sysctl_createv(clog, 0, NULL, NULL, 599 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 600 CTLTYPE_INT, "logsigexit", 601 SYSCTL_DESCR("Log process exit when caused by signals"), 602 NULL, 0, &kern_logsigexit, 0, 603 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 604 sysctl_createv(clog, 0, NULL, NULL, 605 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 606 CTLTYPE_INT, "fscale", 607 SYSCTL_DESCR("Kernel fixed-point scale factor"), 608 NULL, FSCALE, NULL, 0, 609 CTL_KERN, KERN_FSCALE, CTL_EOL); 610 sysctl_createv(clog, 0, NULL, NULL, 611 CTLFLAG_PERMANENT, 612 CTLTYPE_INT, "ccpu", 613 SYSCTL_DESCR("Scheduler exponential decay value"), 614 NULL, 0, &ccpu, 0, 615 CTL_KERN, KERN_CCPU, CTL_EOL); 616 sysctl_createv(clog, 0, NULL, NULL, 617 CTLFLAG_PERMANENT, 618 CTLTYPE_STRUCT, "cp_time", 619 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 620 sysctl_kern_cptime, 0, NULL, 0, 621 CTL_KERN, KERN_CP_TIME, CTL_EOL); 622 sysctl_createv(clog, 0, NULL, NULL, 623 CTLFLAG_PERMANENT, 624 CTLTYPE_INT, "msgbuf", 625 SYSCTL_DESCR("Kernel message buffer"), 626 sysctl_msgbuf, 0, NULL, 0, 627 CTL_KERN, KERN_MSGBUF, CTL_EOL); 628 sysctl_createv(clog, 0, NULL, NULL, 629 CTLFLAG_PERMANENT, 630 CTLTYPE_STRUCT, "consdev", 631 SYSCTL_DESCR("Console device"), 632 sysctl_consdev, 0, NULL, sizeof(dev_t), 633 CTL_KERN, KERN_CONSDEV, CTL_EOL); 634 #if NPTY > 0 635 sysctl_createv(clog, 0, NULL, NULL, 636 CTLFLAG_PERMANENT, 637 CTLTYPE_INT, "maxptys", 638 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 639 sysctl_kern_maxptys, 0, NULL, 0, 640 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 641 #endif /* NPTY > 0 */ 642 sysctl_createv(clog, 0, NULL, NULL, 643 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 644 CTLTYPE_INT, "maxphys", 645 SYSCTL_DESCR("Maximum raw I/O transfer size"), 646 NULL, MAXPHYS, NULL, 0, 647 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 648 sysctl_createv(clog, 0, NULL, NULL, 649 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 650 CTLTYPE_INT, "sbmax", 651 SYSCTL_DESCR("Maximum socket buffer size"), 652 sysctl_kern_sbmax, 0, NULL, 0, 653 CTL_KERN, KERN_SBMAX, CTL_EOL); 654 sysctl_createv(clog, 0, NULL, NULL, 655 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 656 CTLTYPE_INT, "monotonic_clock", 657 SYSCTL_DESCR("Implementation version of the POSIX " 658 "1003.1b Monotonic Clock Option"), 659 /* XXX _POSIX_VERSION */ 660 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 661 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 662 sysctl_createv(clog, 0, NULL, NULL, 663 CTLFLAG_PERMANENT, 664 CTLTYPE_INT, "urandom", 665 SYSCTL_DESCR("Random integer value"), 666 sysctl_kern_urnd, 0, NULL, 0, 667 CTL_KERN, KERN_URND, CTL_EOL); 668 sysctl_createv(clog, 0, NULL, NULL, 669 CTLFLAG_PERMANENT, 670 CTLTYPE_INT, "arandom", 671 SYSCTL_DESCR("n bytes of random data"), 672 sysctl_kern_arnd, 0, NULL, 0, 673 CTL_KERN, KERN_ARND, CTL_EOL); 674 sysctl_createv(clog, 0, NULL, NULL, 675 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 676 CTLTYPE_INT, "labelsector", 677 SYSCTL_DESCR("Sector number containing the disklabel"), 678 NULL, LABELSECTOR, NULL, 0, 679 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 680 sysctl_createv(clog, 0, NULL, NULL, 681 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 682 CTLTYPE_INT, "labeloffset", 683 SYSCTL_DESCR("Offset of the disklabel within the " 684 "sector"), 685 NULL, LABELOFFSET, NULL, 0, 686 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 687 sysctl_createv(clog, 0, NULL, NULL, 688 CTLFLAG_PERMANENT, 689 CTLTYPE_NODE, "lwp", 690 SYSCTL_DESCR("System-wide LWP information"), 691 sysctl_kern_lwp, 0, NULL, 0, 692 CTL_KERN, KERN_LWP, CTL_EOL); 693 sysctl_createv(clog, 0, NULL, NULL, 694 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 695 CTLTYPE_INT, "forkfsleep", 696 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 697 "to process limits"), 698 sysctl_kern_forkfsleep, 0, NULL, 0, 699 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 700 sysctl_createv(clog, 0, NULL, NULL, 701 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 702 CTLTYPE_INT, "posix_threads", 703 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 704 "Threads option to which the system " 705 "attempts to conform"), 706 /* XXX _POSIX_VERSION */ 707 NULL, _POSIX_THREADS, NULL, 0, 708 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 709 sysctl_createv(clog, 0, NULL, NULL, 710 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 711 CTLTYPE_INT, "posix_semaphores", 712 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 713 "Semaphores option to which the system " 714 "attempts to conform"), NULL, 715 #ifdef P1003_1B_SEMAPHORE 716 200112, 717 #else /* P1003_1B_SEMAPHORE */ 718 0, 719 #endif /* P1003_1B_SEMAPHORE */ 720 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 721 sysctl_createv(clog, 0, NULL, NULL, 722 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 723 CTLTYPE_INT, "posix_barriers", 724 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 725 "Barriers option to which the system " 726 "attempts to conform"), 727 /* XXX _POSIX_VERSION */ 728 NULL, _POSIX_BARRIERS, NULL, 0, 729 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 730 sysctl_createv(clog, 0, NULL, NULL, 731 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 732 CTLTYPE_INT, "posix_timers", 733 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 734 "Timers option to which the system " 735 "attempts to conform"), 736 /* XXX _POSIX_VERSION */ 737 NULL, _POSIX_TIMERS, NULL, 0, 738 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 739 sysctl_createv(clog, 0, NULL, NULL, 740 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 741 CTLTYPE_INT, "posix_spin_locks", 742 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 743 "Locks option to which the system attempts " 744 "to conform"), 745 /* XXX _POSIX_VERSION */ 746 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 747 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 748 sysctl_createv(clog, 0, NULL, NULL, 749 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 750 CTLTYPE_INT, "posix_reader_writer_locks", 751 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 752 "Read-Write Locks option to which the " 753 "system attempts to conform"), 754 /* XXX _POSIX_VERSION */ 755 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 756 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 757 sysctl_createv(clog, 0, NULL, NULL, 758 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 759 CTLTYPE_INT, "dump_on_panic", 760 SYSCTL_DESCR("Perform a crash dump on system panic"), 761 NULL, 0, &dumponpanic, 0, 762 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 763 #ifdef DIAGNOSTIC 764 sysctl_createv(clog, 0, NULL, NULL, 765 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 766 CTLTYPE_INT, "panic_now", 767 SYSCTL_DESCR("Trigger a panic"), 768 sysctl_kern_trigger_panic, 0, NULL, 0, 769 CTL_KERN, CTL_CREATE, CTL_EOL); 770 #endif 771 sysctl_createv(clog, 0, NULL, NULL, 772 CTLFLAG_PERMANENT, 773 CTLTYPE_INT, "root_partition", 774 SYSCTL_DESCR("Root partition on the root device"), 775 sysctl_kern_root_partition, 0, NULL, 0, 776 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 777 sysctl_createv(clog, 0, NULL, NULL, 778 CTLFLAG_PERMANENT, 779 CTLTYPE_STRUCT, "drivers", 780 SYSCTL_DESCR("List of all drivers with block and " 781 "character device numbers"), 782 sysctl_kern_drivers, 0, NULL, 0, 783 CTL_KERN, KERN_DRIVERS, CTL_EOL); 784 sysctl_createv(clog, 0, NULL, NULL, 785 CTLFLAG_PERMANENT, 786 CTLTYPE_STRUCT, "file2", 787 SYSCTL_DESCR("System open file table"), 788 sysctl_kern_file2, 0, NULL, 0, 789 CTL_KERN, KERN_FILE2, CTL_EOL); 790 sysctl_createv(clog, 0, NULL, NULL, 791 CTLFLAG_PERMANENT, 792 CTLTYPE_STRUCT, "cp_id", 793 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 794 sysctl_kern_cpid, 0, NULL, 0, 795 CTL_KERN, KERN_CP_ID, CTL_EOL); 796 sysctl_createv(clog, 0, NULL, &rnode, 797 CTLFLAG_PERMANENT, 798 CTLTYPE_NODE, "coredump", 799 SYSCTL_DESCR("Coredump settings."), 800 NULL, 0, NULL, 0, 801 CTL_KERN, CTL_CREATE, CTL_EOL); 802 sysctl_createv(clog, 0, &rnode, &rnode, 803 CTLFLAG_PERMANENT, 804 CTLTYPE_NODE, "setid", 805 SYSCTL_DESCR("Set-id processes' coredump settings."), 806 NULL, 0, NULL, 0, 807 CTL_CREATE, CTL_EOL); 808 sysctl_createv(clog, 0, &rnode, NULL, 809 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 810 CTLTYPE_INT, "dump", 811 SYSCTL_DESCR("Allow set-id processes to dump core."), 812 sysctl_security_setidcore, 0, &security_setidcore_dump, 813 sizeof(security_setidcore_dump), 814 CTL_CREATE, CTL_EOL); 815 sysctl_createv(clog, 0, &rnode, NULL, 816 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 817 CTLTYPE_STRING, "path", 818 SYSCTL_DESCR("Path pattern for set-id coredumps."), 819 sysctl_security_setidcorename, 0, 820 &security_setidcore_path, 821 sizeof(security_setidcore_path), 822 CTL_CREATE, CTL_EOL); 823 sysctl_createv(clog, 0, &rnode, NULL, 824 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 825 CTLTYPE_INT, "owner", 826 SYSCTL_DESCR("Owner id for set-id processes' cores."), 827 sysctl_security_setidcore, 0, &security_setidcore_owner, 828 0, 829 CTL_CREATE, CTL_EOL); 830 sysctl_createv(clog, 0, &rnode, NULL, 831 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 832 CTLTYPE_INT, "group", 833 SYSCTL_DESCR("Group id for set-id processes' cores."), 834 sysctl_security_setidcore, 0, &security_setidcore_group, 835 0, 836 CTL_CREATE, CTL_EOL); 837 sysctl_createv(clog, 0, &rnode, NULL, 838 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 839 CTLTYPE_INT, "mode", 840 SYSCTL_DESCR("Mode for set-id processes' cores."), 841 sysctl_security_setidcore, 0, &security_setidcore_mode, 842 0, 843 CTL_CREATE, CTL_EOL); 844 sysctl_createv(clog, 0, NULL, NULL, 845 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 846 CTLTYPE_INT, "no_sa_support", 847 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"), 848 NULL, 1, NULL, 0, 849 CTL_KERN, CTL_CREATE, CTL_EOL); 850 } 851 852 SYSCTL_SETUP(sysctl_kern_proc_setup, 853 "sysctl kern.proc/proc2/proc_args subtree setup") 854 { 855 856 sysctl_createv(clog, 0, NULL, NULL, 857 CTLFLAG_PERMANENT, 858 CTLTYPE_NODE, "kern", NULL, 859 NULL, 0, NULL, 0, 860 CTL_KERN, CTL_EOL); 861 862 sysctl_createv(clog, 0, NULL, NULL, 863 CTLFLAG_PERMANENT, 864 CTLTYPE_NODE, "proc", 865 SYSCTL_DESCR("System-wide process information"), 866 sysctl_doeproc, 0, NULL, 0, 867 CTL_KERN, KERN_PROC, CTL_EOL); 868 sysctl_createv(clog, 0, NULL, NULL, 869 CTLFLAG_PERMANENT, 870 CTLTYPE_NODE, "proc2", 871 SYSCTL_DESCR("Machine-independent process information"), 872 sysctl_doeproc, 0, NULL, 0, 873 CTL_KERN, KERN_PROC2, CTL_EOL); 874 sysctl_createv(clog, 0, NULL, NULL, 875 CTLFLAG_PERMANENT, 876 CTLTYPE_NODE, "proc_args", 877 SYSCTL_DESCR("Process argument information"), 878 sysctl_kern_proc_args, 0, NULL, 0, 879 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 880 881 /* 882 "nodes" under these: 883 884 KERN_PROC_ALL 885 KERN_PROC_PID pid 886 KERN_PROC_PGRP pgrp 887 KERN_PROC_SESSION sess 888 KERN_PROC_TTY tty 889 KERN_PROC_UID uid 890 KERN_PROC_RUID uid 891 KERN_PROC_GID gid 892 KERN_PROC_RGID gid 893 894 all in all, probably not worth the effort... 895 */ 896 } 897 898 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 899 { 900 u_int u; 901 u_quad_t q; 902 903 sysctl_createv(clog, 0, NULL, NULL, 904 CTLFLAG_PERMANENT, 905 CTLTYPE_NODE, "hw", NULL, 906 NULL, 0, NULL, 0, 907 CTL_HW, CTL_EOL); 908 909 sysctl_createv(clog, 0, NULL, NULL, 910 CTLFLAG_PERMANENT, 911 CTLTYPE_STRING, "machine", 912 SYSCTL_DESCR("Machine class"), 913 NULL, 0, machine, 0, 914 CTL_HW, HW_MACHINE, CTL_EOL); 915 sysctl_createv(clog, 0, NULL, NULL, 916 CTLFLAG_PERMANENT, 917 CTLTYPE_STRING, "model", 918 SYSCTL_DESCR("Machine model"), 919 NULL, 0, cpu_model, 0, 920 CTL_HW, HW_MODEL, CTL_EOL); 921 sysctl_createv(clog, 0, NULL, NULL, 922 CTLFLAG_PERMANENT, 923 CTLTYPE_INT, "ncpu", 924 SYSCTL_DESCR("Number of CPUs configured"), 925 NULL, 0, &ncpu, 0, 926 CTL_HW, HW_NCPU, CTL_EOL); 927 sysctl_createv(clog, 0, NULL, NULL, 928 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 929 CTLTYPE_INT, "byteorder", 930 SYSCTL_DESCR("System byte order"), 931 NULL, BYTE_ORDER, NULL, 0, 932 CTL_HW, HW_BYTEORDER, CTL_EOL); 933 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 934 UINT_MAX : physmem * PAGE_SIZE; 935 sysctl_createv(clog, 0, NULL, NULL, 936 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 937 CTLTYPE_INT, "physmem", 938 SYSCTL_DESCR("Bytes of physical memory"), 939 NULL, u, NULL, 0, 940 CTL_HW, HW_PHYSMEM, CTL_EOL); 941 sysctl_createv(clog, 0, NULL, NULL, 942 CTLFLAG_PERMANENT, 943 CTLTYPE_INT, "usermem", 944 SYSCTL_DESCR("Bytes of non-kernel memory"), 945 sysctl_hw_usermem, 0, NULL, 0, 946 CTL_HW, HW_USERMEM, CTL_EOL); 947 sysctl_createv(clog, 0, NULL, NULL, 948 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 949 CTLTYPE_INT, "pagesize", 950 SYSCTL_DESCR("Software page size"), 951 NULL, PAGE_SIZE, NULL, 0, 952 CTL_HW, HW_PAGESIZE, CTL_EOL); 953 sysctl_createv(clog, 0, NULL, NULL, 954 CTLFLAG_PERMANENT, 955 CTLTYPE_STRING, "machine_arch", 956 SYSCTL_DESCR("Machine CPU class"), 957 NULL, 0, machine_arch, 0, 958 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 959 sysctl_createv(clog, 0, NULL, NULL, 960 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 961 CTLTYPE_INT, "alignbytes", 962 SYSCTL_DESCR("Alignment constraint for all possible " 963 "data types"), 964 NULL, ALIGNBYTES, NULL, 0, 965 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 966 sysctl_createv(clog, 0, NULL, NULL, 967 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 968 CTLTYPE_STRING, "cnmagic", 969 SYSCTL_DESCR("Console magic key sequence"), 970 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 971 CTL_HW, HW_CNMAGIC, CTL_EOL); 972 q = (u_quad_t)physmem * PAGE_SIZE; 973 sysctl_createv(clog, 0, NULL, NULL, 974 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 975 CTLTYPE_QUAD, "physmem64", 976 SYSCTL_DESCR("Bytes of physical memory"), 977 NULL, q, NULL, 0, 978 CTL_HW, HW_PHYSMEM64, CTL_EOL); 979 sysctl_createv(clog, 0, NULL, NULL, 980 CTLFLAG_PERMANENT, 981 CTLTYPE_QUAD, "usermem64", 982 SYSCTL_DESCR("Bytes of non-kernel memory"), 983 sysctl_hw_usermem, 0, NULL, 0, 984 CTL_HW, HW_USERMEM64, CTL_EOL); 985 sysctl_createv(clog, 0, NULL, NULL, 986 CTLFLAG_PERMANENT, 987 CTLTYPE_INT, "ncpuonline", 988 SYSCTL_DESCR("Number of CPUs online"), 989 NULL, 0, &ncpuonline, 0, 990 CTL_HW, HW_NCPUONLINE, CTL_EOL); 991 } 992 993 #ifdef DEBUG 994 /* 995 * Debugging related system variables. 996 */ 997 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 998 struct ctldebug debug5, debug6, debug7, debug8, debug9; 999 struct ctldebug debug10, debug11, debug12, debug13, debug14; 1000 struct ctldebug debug15, debug16, debug17, debug18, debug19; 1001 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 1002 &debug0, &debug1, &debug2, &debug3, &debug4, 1003 &debug5, &debug6, &debug7, &debug8, &debug9, 1004 &debug10, &debug11, &debug12, &debug13, &debug14, 1005 &debug15, &debug16, &debug17, &debug18, &debug19, 1006 }; 1007 1008 /* 1009 * this setup routine is a replacement for debug_sysctl() 1010 * 1011 * note that it creates several nodes per defined debug variable 1012 */ 1013 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1014 { 1015 struct ctldebug *cdp; 1016 char nodename[20]; 1017 int i; 1018 1019 /* 1020 * two ways here: 1021 * 1022 * the "old" way (debug.name -> value) which was emulated by 1023 * the sysctl(8) binary 1024 * 1025 * the new way, which the sysctl(8) binary was actually using 1026 1027 node debug 1028 node debug.0 1029 string debug.0.name 1030 int debug.0.value 1031 int debug.name 1032 1033 */ 1034 1035 sysctl_createv(clog, 0, NULL, NULL, 1036 CTLFLAG_PERMANENT, 1037 CTLTYPE_NODE, "debug", NULL, 1038 NULL, 0, NULL, 0, 1039 CTL_DEBUG, CTL_EOL); 1040 1041 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1042 cdp = debugvars[i]; 1043 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1044 continue; 1045 1046 snprintf(nodename, sizeof(nodename), "debug%d", i); 1047 sysctl_createv(clog, 0, NULL, NULL, 1048 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1049 CTLTYPE_NODE, nodename, NULL, 1050 NULL, 0, NULL, 0, 1051 CTL_DEBUG, i, CTL_EOL); 1052 sysctl_createv(clog, 0, NULL, NULL, 1053 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1054 CTLTYPE_STRING, "name", NULL, 1055 /*XXXUNCONST*/ 1056 NULL, 0, __UNCONST(cdp->debugname), 0, 1057 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1058 sysctl_createv(clog, 0, NULL, NULL, 1059 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1060 CTLTYPE_INT, "value", NULL, 1061 NULL, 0, cdp->debugvar, 0, 1062 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1063 sysctl_createv(clog, 0, NULL, NULL, 1064 CTLFLAG_PERMANENT, 1065 CTLTYPE_INT, cdp->debugname, NULL, 1066 NULL, 0, cdp->debugvar, 0, 1067 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1068 } 1069 } 1070 #endif /* DEBUG */ 1071 1072 /* 1073 * ******************************************************************** 1074 * section 2: private node-specific helper routines. 1075 * ******************************************************************** 1076 */ 1077 1078 #ifdef DIAGNOSTIC 1079 static int 1080 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1081 { 1082 int newtrig, error; 1083 struct sysctlnode node; 1084 1085 newtrig = 0; 1086 node = *rnode; 1087 node.sysctl_data = &newtrig; 1088 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1089 if (error || newp == NULL) 1090 return (error); 1091 1092 if (newtrig != 0) 1093 panic("Panic triggered"); 1094 1095 return (error); 1096 } 1097 #endif 1098 1099 /* 1100 * sysctl helper routine for kern.maxvnodes. Drain vnodes if 1101 * new value is lower than desiredvnodes and then calls reinit 1102 * routines that needs to adjust to the new value. 1103 */ 1104 static int 1105 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1106 { 1107 int error, new_vnodes, old_vnodes; 1108 struct sysctlnode node; 1109 1110 new_vnodes = desiredvnodes; 1111 node = *rnode; 1112 node.sysctl_data = &new_vnodes; 1113 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1114 if (error || newp == NULL) 1115 return (error); 1116 1117 old_vnodes = desiredvnodes; 1118 desiredvnodes = new_vnodes; 1119 if (new_vnodes < old_vnodes) { 1120 error = vfs_drainvnodes(new_vnodes, l); 1121 if (error) { 1122 desiredvnodes = old_vnodes; 1123 return (error); 1124 } 1125 } 1126 vfs_reinit(); 1127 nchreinit(); 1128 1129 return (0); 1130 } 1131 1132 /* 1133 * sysctl helper routine for rtc_offset - set time after changes 1134 */ 1135 static int 1136 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1137 { 1138 struct timespec ts, delta; 1139 int error, new_rtc_offset; 1140 struct sysctlnode node; 1141 1142 new_rtc_offset = rtc_offset; 1143 node = *rnode; 1144 node.sysctl_data = &new_rtc_offset; 1145 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1146 if (error || newp == NULL) 1147 return (error); 1148 1149 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1150 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1151 KAUTH_ARG(new_rtc_offset), NULL, NULL)) 1152 return (EPERM); 1153 if (rtc_offset == new_rtc_offset) 1154 return (0); 1155 1156 /* if we change the offset, adjust the time */ 1157 nanotime(&ts); 1158 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1159 delta.tv_nsec = 0; 1160 timespecadd(&ts, &delta, &ts); 1161 rtc_offset = new_rtc_offset; 1162 return (settime(l->l_proc, &ts)); 1163 } 1164 1165 /* 1166 * sysctl helper routine for kern.maxproc. Ensures that the new 1167 * values are not too low or too high. 1168 */ 1169 static int 1170 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1171 { 1172 int error, nmaxproc; 1173 struct sysctlnode node; 1174 1175 nmaxproc = maxproc; 1176 node = *rnode; 1177 node.sysctl_data = &nmaxproc; 1178 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1179 if (error || newp == NULL) 1180 return (error); 1181 1182 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1183 return (EINVAL); 1184 #ifdef __HAVE_CPU_MAXPROC 1185 if (nmaxproc > cpu_maxproc()) 1186 return (EINVAL); 1187 #endif 1188 maxproc = nmaxproc; 1189 1190 return (0); 1191 } 1192 1193 /* 1194 * sysctl helper function for kern.hostid. The hostid is a long, but 1195 * we export it as an int, so we need to give it a little help. 1196 */ 1197 static int 1198 sysctl_kern_hostid(SYSCTLFN_ARGS) 1199 { 1200 int error, inthostid; 1201 struct sysctlnode node; 1202 1203 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1204 node = *rnode; 1205 node.sysctl_data = &inthostid; 1206 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1207 if (error || newp == NULL) 1208 return (error); 1209 1210 hostid = (unsigned)inthostid; 1211 1212 return (0); 1213 } 1214 1215 /* 1216 * sysctl helper function for kern.hostname and kern.domainnname. 1217 * resets the relevant recorded length when the underlying name is 1218 * changed. 1219 */ 1220 static int 1221 sysctl_setlen(SYSCTLFN_ARGS) 1222 { 1223 int error; 1224 1225 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1226 if (error || newp == NULL) 1227 return (error); 1228 1229 switch (rnode->sysctl_num) { 1230 case KERN_HOSTNAME: 1231 hostnamelen = strlen((const char*)rnode->sysctl_data); 1232 break; 1233 case KERN_DOMAINNAME: 1234 domainnamelen = strlen((const char*)rnode->sysctl_data); 1235 break; 1236 } 1237 1238 return (0); 1239 } 1240 1241 /* 1242 * sysctl helper routine for kern.clockrate. Assembles a struct on 1243 * the fly to be returned to the caller. 1244 */ 1245 static int 1246 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1247 { 1248 struct clockinfo clkinfo; 1249 struct sysctlnode node; 1250 1251 clkinfo.tick = tick; 1252 clkinfo.tickadj = tickadj; 1253 clkinfo.hz = hz; 1254 clkinfo.profhz = profhz; 1255 clkinfo.stathz = stathz ? stathz : hz; 1256 1257 node = *rnode; 1258 node.sysctl_data = &clkinfo; 1259 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1260 } 1261 1262 1263 /* 1264 * sysctl helper routine for kern.file pseudo-subtree. 1265 */ 1266 static int 1267 sysctl_kern_file(SYSCTLFN_ARGS) 1268 { 1269 int error; 1270 size_t buflen; 1271 struct file *fp; 1272 char *start, *where; 1273 1274 start = where = oldp; 1275 buflen = *oldlenp; 1276 if (where == NULL) { 1277 /* 1278 * overestimate by 10 files 1279 */ 1280 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1281 return (0); 1282 } 1283 1284 /* 1285 * first dcopyout filehead 1286 */ 1287 if (buflen < sizeof(filehead)) { 1288 *oldlenp = 0; 1289 return (0); 1290 } 1291 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1292 if (error) 1293 return (error); 1294 buflen -= sizeof(filehead); 1295 where += sizeof(filehead); 1296 1297 /* 1298 * followed by an array of file structures 1299 */ 1300 LIST_FOREACH(fp, &filehead, f_list) { 1301 if (kauth_authorize_generic(l->l_cred, 1302 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1303 continue; 1304 if (buflen < sizeof(struct file)) { 1305 *oldlenp = where - start; 1306 return (ENOMEM); 1307 } 1308 error = dcopyout(l, fp, where, sizeof(struct file)); 1309 if (error) 1310 return (error); 1311 buflen -= sizeof(struct file); 1312 where += sizeof(struct file); 1313 } 1314 *oldlenp = where - start; 1315 return (0); 1316 } 1317 1318 /* 1319 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 1320 * former it merely checks the message buffer is set up. For the latter, 1321 * it also copies out the data if necessary. 1322 */ 1323 static int 1324 sysctl_msgbuf(SYSCTLFN_ARGS) 1325 { 1326 char *where = oldp; 1327 size_t len, maxlen; 1328 long beg, end; 1329 int error; 1330 1331 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1332 msgbufenabled = 0; 1333 return (ENXIO); 1334 } 1335 1336 switch (rnode->sysctl_num) { 1337 case KERN_MSGBUFSIZE: { 1338 struct sysctlnode node = *rnode; 1339 int msg_bufs = (int)msgbufp->msg_bufs; 1340 node.sysctl_data = &msg_bufs; 1341 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1342 } 1343 case KERN_MSGBUF: 1344 break; 1345 default: 1346 return (EOPNOTSUPP); 1347 } 1348 1349 if (newp != NULL) 1350 return (EPERM); 1351 1352 if (oldp == NULL) { 1353 /* always return full buffer size */ 1354 *oldlenp = msgbufp->msg_bufs; 1355 return (0); 1356 } 1357 1358 error = 0; 1359 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1360 1361 /* 1362 * First, copy from the write pointer to the end of 1363 * message buffer. 1364 */ 1365 beg = msgbufp->msg_bufx; 1366 end = msgbufp->msg_bufs; 1367 while (maxlen > 0) { 1368 len = MIN(end - beg, maxlen); 1369 if (len == 0) 1370 break; 1371 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1372 if (error) 1373 break; 1374 where += len; 1375 maxlen -= len; 1376 1377 /* 1378 * ... then, copy from the beginning of message buffer to 1379 * the write pointer. 1380 */ 1381 beg = 0; 1382 end = msgbufp->msg_bufx; 1383 } 1384 1385 return (error); 1386 } 1387 1388 /* 1389 * sysctl helper routine for kern.defcorename. In the case of a new 1390 * string being assigned, check that it's not a zero-length string. 1391 * (XXX the check in -current doesn't work, but do we really care?) 1392 */ 1393 static int 1394 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1395 { 1396 int error; 1397 char *newcorename; 1398 struct sysctlnode node; 1399 1400 newcorename = PNBUF_GET(); 1401 node = *rnode; 1402 node.sysctl_data = &newcorename[0]; 1403 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1404 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1405 if (error || newp == NULL) { 1406 goto done; 1407 } 1408 1409 /* 1410 * when sysctl_lookup() deals with a string, it's guaranteed 1411 * to come back nul terminated. So there. :) 1412 */ 1413 if (strlen(newcorename) == 0) { 1414 error = EINVAL; 1415 } else { 1416 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1417 error = 0; 1418 } 1419 done: 1420 PNBUF_PUT(newcorename); 1421 return error; 1422 } 1423 1424 /* 1425 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1426 * across all cpus. 1427 */ 1428 static int 1429 sysctl_kern_cptime(SYSCTLFN_ARGS) 1430 { 1431 struct sysctlnode node = *rnode; 1432 1433 #ifndef MULTIPROCESSOR 1434 1435 if (namelen == 1) { 1436 if (name[0] != 0) 1437 return (ENOENT); 1438 /* 1439 * you're allowed to ask for the zero'th processor 1440 */ 1441 name++; 1442 namelen--; 1443 } 1444 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1445 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1446 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1447 1448 #else /* MULTIPROCESSOR */ 1449 1450 uint64_t *cp_time = NULL; 1451 int error, n = ncpu, i; 1452 struct cpu_info *ci; 1453 CPU_INFO_ITERATOR cii; 1454 1455 /* 1456 * if you specifically pass a buffer that is the size of the 1457 * sum, or if you are probing for the size, you get the "sum" 1458 * of cp_time (and the size thereof) across all processors. 1459 * 1460 * alternately, you can pass an additional mib number and get 1461 * cp_time for that particular processor. 1462 */ 1463 switch (namelen) { 1464 case 0: 1465 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1466 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1467 n = -1; /* SUM */ 1468 } 1469 else { 1470 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1471 n = -2; /* ALL */ 1472 } 1473 break; 1474 case 1: 1475 if (name[0] < 0 || name[0] >= n) 1476 return (ENOENT); /* ENOSUCHPROCESSOR */ 1477 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1478 n = name[0]; 1479 /* 1480 * adjust these so that sysctl_lookup() will be happy 1481 */ 1482 name++; 1483 namelen--; 1484 break; 1485 default: 1486 return (EINVAL); 1487 } 1488 1489 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1490 if (cp_time == NULL) 1491 return (ENOMEM); 1492 node.sysctl_data = cp_time; 1493 memset(cp_time, 0, node.sysctl_size); 1494 1495 for (CPU_INFO_FOREACH(cii, ci)) { 1496 if (n <= 0) 1497 for (i = 0; i < CPUSTATES; i++) 1498 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1499 /* 1500 * if a specific processor was requested and we just 1501 * did it, we're done here 1502 */ 1503 if (n == 0) 1504 break; 1505 /* 1506 * if doing "all", skip to next cp_time set for next processor 1507 */ 1508 if (n == -2) 1509 cp_time += CPUSTATES; 1510 /* 1511 * if we're doing a specific processor, we're one 1512 * processor closer 1513 */ 1514 if (n > 0) 1515 n--; 1516 } 1517 1518 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1519 free(node.sysctl_data, M_TEMP); 1520 return (error); 1521 1522 #endif /* MULTIPROCESSOR */ 1523 } 1524 1525 #if NPTY > 0 1526 /* 1527 * sysctl helper routine for kern.maxptys. Ensures that any new value 1528 * is acceptable to the pty subsystem. 1529 */ 1530 static int 1531 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1532 { 1533 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1534 int error, xmax; 1535 struct sysctlnode node; 1536 1537 /* get current value of maxptys */ 1538 xmax = pty_maxptys(0, 0); 1539 1540 node = *rnode; 1541 node.sysctl_data = &xmax; 1542 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1543 if (error || newp == NULL) 1544 return (error); 1545 1546 if (xmax != pty_maxptys(xmax, 1)) 1547 return (EINVAL); 1548 1549 return (0); 1550 } 1551 #endif /* NPTY > 0 */ 1552 1553 /* 1554 * sysctl helper routine for kern.sbmax. Basically just ensures that 1555 * any new value is not too small. 1556 */ 1557 static int 1558 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1559 { 1560 int error, new_sbmax; 1561 struct sysctlnode node; 1562 1563 new_sbmax = sb_max; 1564 node = *rnode; 1565 node.sysctl_data = &new_sbmax; 1566 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1567 if (error || newp == NULL) 1568 return (error); 1569 1570 error = sb_max_set(new_sbmax); 1571 1572 return (error); 1573 } 1574 1575 /* 1576 * sysctl helper routine for kern.urandom node. Picks a random number 1577 * for you. 1578 */ 1579 static int 1580 sysctl_kern_urnd(SYSCTLFN_ARGS) 1581 { 1582 #if NRND > 0 1583 int v; 1584 1585 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1586 struct sysctlnode node = *rnode; 1587 node.sysctl_data = &v; 1588 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1589 } 1590 else 1591 return (EIO); /*XXX*/ 1592 #else 1593 return (EOPNOTSUPP); 1594 #endif 1595 } 1596 1597 /* 1598 * sysctl helper routine for kern.arandom node. Picks a random number 1599 * for you. 1600 */ 1601 static int 1602 sysctl_kern_arnd(SYSCTLFN_ARGS) 1603 { 1604 #if NRND > 0 1605 int error; 1606 void *v; 1607 struct sysctlnode node = *rnode; 1608 1609 if (*oldlenp == 0) 1610 return 0; 1611 if (*oldlenp > 8192) 1612 return E2BIG; 1613 1614 v = malloc(*oldlenp, M_TEMP, M_WAITOK); 1615 1616 arc4randbytes(v, *oldlenp); 1617 node.sysctl_data = v; 1618 node.sysctl_size = *oldlenp; 1619 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1620 free(v, M_TEMP); 1621 return error; 1622 #else 1623 return (EOPNOTSUPP); 1624 #endif 1625 } 1626 /* 1627 * sysctl helper routine to do kern.lwp.* work. 1628 */ 1629 static int 1630 sysctl_kern_lwp(SYSCTLFN_ARGS) 1631 { 1632 struct kinfo_lwp klwp; 1633 struct proc *p; 1634 struct lwp *l2; 1635 char *where, *dp; 1636 int pid, elem_size, elem_count; 1637 int buflen, needed, error; 1638 1639 if (namelen == 1 && name[0] == CTL_QUERY) 1640 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1641 1642 dp = where = oldp; 1643 buflen = where != NULL ? *oldlenp : 0; 1644 error = needed = 0; 1645 1646 if (newp != NULL || namelen != 3) 1647 return (EINVAL); 1648 pid = name[0]; 1649 elem_size = name[1]; 1650 elem_count = name[2]; 1651 1652 mutex_enter(&proclist_lock); 1653 if (pid == -1) { 1654 LIST_FOREACH(l2, &alllwp, l_list) { 1655 if (buflen >= elem_size && elem_count > 0) { 1656 lwp_lock(l2); 1657 fill_lwp(l2, &klwp); 1658 lwp_unlock(l2); 1659 1660 /* 1661 * Copy out elem_size, but not larger than 1662 * the size of a struct kinfo_proc2. 1663 */ 1664 error = dcopyout(l, &klwp, dp, 1665 min(sizeof(klwp), elem_size)); 1666 if (error) 1667 goto cleanup; 1668 dp += elem_size; 1669 buflen -= elem_size; 1670 elem_count--; 1671 } 1672 needed += elem_size; 1673 } 1674 } else { 1675 p = p_find(pid, PFIND_LOCKED); 1676 if (p == NULL) { 1677 mutex_exit(&proclist_lock); 1678 return (ESRCH); 1679 } 1680 mutex_enter(&p->p_smutex); 1681 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1682 if (buflen >= elem_size && elem_count > 0) { 1683 struct lwp *l3; 1684 1685 lwp_lock(l2); 1686 fill_lwp(l2, &klwp); 1687 lwp_unlock(l2); 1688 mutex_exit(&p->p_smutex); 1689 /* 1690 * Copy out elem_size, but not larger than 1691 * the size of a struct kinfo_proc2. 1692 */ 1693 error = dcopyout(l, &klwp, dp, 1694 min(sizeof(klwp), elem_size)); 1695 if (error) { 1696 goto cleanup; 1697 } 1698 mutex_enter(&p->p_smutex); 1699 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1700 if (l2 == l3) 1701 break; 1702 } 1703 if (l3 == NULL) { 1704 mutex_exit(&p->p_smutex); 1705 error = EAGAIN; 1706 goto cleanup; 1707 } 1708 dp += elem_size; 1709 buflen -= elem_size; 1710 elem_count--; 1711 } 1712 needed += elem_size; 1713 } 1714 mutex_exit(&p->p_smutex); 1715 } 1716 mutex_exit(&proclist_lock); 1717 1718 if (where != NULL) { 1719 *oldlenp = dp - where; 1720 if (needed > *oldlenp) 1721 return (ENOMEM); 1722 } else { 1723 needed += KERN_LWPSLOP; 1724 *oldlenp = needed; 1725 } 1726 return (0); 1727 cleanup: 1728 mutex_exit(&proclist_lock); 1729 return (error); 1730 } 1731 1732 /* 1733 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1734 * given value is not too large or two small, and is at least one 1735 * timer tick if not zero. 1736 */ 1737 static int 1738 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1739 { 1740 /* userland sees value in ms, internally is in ticks */ 1741 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1742 int error, timo, lsleep; 1743 struct sysctlnode node; 1744 1745 lsleep = forkfsleep * 1000 / hz; 1746 node = *rnode; 1747 node.sysctl_data = &lsleep; 1748 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1749 if (error || newp == NULL) 1750 return (error); 1751 1752 /* refuse negative values, and overly 'long time' */ 1753 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1754 return (EINVAL); 1755 1756 timo = mstohz(lsleep); 1757 1758 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1759 if (lsleep != 0 && timo == 0) 1760 forkfsleep = 1; 1761 else 1762 forkfsleep = timo; 1763 1764 return (0); 1765 } 1766 1767 /* 1768 * sysctl helper routine for kern.root_partition 1769 */ 1770 static int 1771 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1772 { 1773 int rootpart = DISKPART(rootdev); 1774 struct sysctlnode node = *rnode; 1775 1776 node.sysctl_data = &rootpart; 1777 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1778 } 1779 1780 /* 1781 * sysctl helper function for kern.drivers 1782 */ 1783 static int 1784 sysctl_kern_drivers(SYSCTLFN_ARGS) 1785 { 1786 int error; 1787 size_t buflen; 1788 struct kinfo_drivers kd; 1789 char *start, *where; 1790 const char *dname; 1791 int i; 1792 extern struct devsw_conv *devsw_conv; 1793 extern int max_devsw_convs; 1794 1795 if (newp != NULL || namelen != 0) 1796 return (EINVAL); 1797 1798 start = where = oldp; 1799 buflen = *oldlenp; 1800 if (where == NULL) { 1801 *oldlenp = max_devsw_convs * sizeof kd; 1802 return 0; 1803 } 1804 1805 /* 1806 * An array of kinfo_drivers structures 1807 */ 1808 error = 0; 1809 for (i = 0; i < max_devsw_convs; i++) { 1810 dname = devsw_conv[i].d_name; 1811 if (dname == NULL) 1812 continue; 1813 if (buflen < sizeof kd) { 1814 error = ENOMEM; 1815 break; 1816 } 1817 memset(&kd, 0, sizeof(kd)); 1818 kd.d_bmajor = devsw_conv[i].d_bmajor; 1819 kd.d_cmajor = devsw_conv[i].d_cmajor; 1820 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1821 error = dcopyout(l, &kd, where, sizeof kd); 1822 if (error != 0) 1823 break; 1824 buflen -= sizeof kd; 1825 where += sizeof kd; 1826 } 1827 *oldlenp = where - start; 1828 return error; 1829 } 1830 1831 /* 1832 * sysctl helper function for kern.file2 1833 */ 1834 static int 1835 sysctl_kern_file2(SYSCTLFN_ARGS) 1836 { 1837 struct proc *p; 1838 struct file *fp; 1839 struct filedesc *fd; 1840 struct kinfo_file kf; 1841 char *dp; 1842 u_int i, op; 1843 size_t len, needed, elem_size, out_size; 1844 int error, arg, elem_count; 1845 1846 if (namelen == 1 && name[0] == CTL_QUERY) 1847 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1848 1849 if (namelen != 4) 1850 return (EINVAL); 1851 1852 error = 0; 1853 dp = oldp; 1854 len = (oldp != NULL) ? *oldlenp : 0; 1855 op = name[0]; 1856 arg = name[1]; 1857 elem_size = name[2]; 1858 elem_count = name[3]; 1859 out_size = MIN(sizeof(kf), elem_size); 1860 needed = 0; 1861 1862 if (elem_size < 1 || elem_count < 0) 1863 return (EINVAL); 1864 1865 switch (op) { 1866 case KERN_FILE_BYFILE: 1867 /* 1868 * doesn't use arg so it must be zero 1869 */ 1870 if (arg != 0) 1871 return (EINVAL); 1872 LIST_FOREACH(fp, &filehead, f_list) { 1873 if (kauth_authorize_generic(l->l_cred, 1874 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1875 continue; 1876 if (len >= elem_size && elem_count > 0) { 1877 fill_file(&kf, fp, NULL, 0); 1878 error = dcopyout(l, &kf, dp, out_size); 1879 if (error) 1880 break; 1881 dp += elem_size; 1882 len -= elem_size; 1883 } 1884 if (elem_count > 0) { 1885 needed += elem_size; 1886 if (elem_count != INT_MAX) 1887 elem_count--; 1888 } 1889 } 1890 break; 1891 case KERN_FILE_BYPID: 1892 if (arg < -1) 1893 /* -1 means all processes */ 1894 return (EINVAL); 1895 mutex_enter(&proclist_lock); 1896 PROCLIST_FOREACH(p, &allproc) { 1897 if (p->p_stat == SIDL) 1898 /* skip embryonic processes */ 1899 continue; 1900 if (kauth_authorize_process(l->l_cred, 1901 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 1902 continue; 1903 if (arg > 0 && p->p_pid != arg) 1904 /* pick only the one we want */ 1905 /* XXX want 0 to mean "kernel files" */ 1906 continue; 1907 fd = p->p_fd; 1908 for (i = 0; i < fd->fd_nfiles; i++) { 1909 fp = fd->fd_ofiles[i]; 1910 if (fp == NULL || !FILE_IS_USABLE(fp)) 1911 continue; 1912 if (len >= elem_size && elem_count > 0) { 1913 fill_file(&kf, fd->fd_ofiles[i], 1914 p, i); 1915 error = dcopyout(l, &kf, dp, out_size); 1916 if (error) 1917 break; 1918 dp += elem_size; 1919 len -= elem_size; 1920 } 1921 if (elem_count > 0) { 1922 needed += elem_size; 1923 if (elem_count != INT_MAX) 1924 elem_count--; 1925 } 1926 } 1927 } 1928 mutex_exit(&proclist_lock); 1929 break; 1930 default: 1931 return (EINVAL); 1932 } 1933 1934 if (oldp == NULL) 1935 needed += KERN_FILESLOP * elem_size; 1936 *oldlenp = needed; 1937 1938 return (error); 1939 } 1940 1941 static void 1942 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 1943 { 1944 1945 memset(kp, 0, sizeof(*kp)); 1946 1947 kp->ki_fileaddr = PTRTOUINT64(fp); 1948 kp->ki_flag = fp->f_flag; 1949 kp->ki_iflags = fp->f_iflags; 1950 kp->ki_ftype = fp->f_type; 1951 kp->ki_count = fp->f_count; 1952 kp->ki_msgcount = fp->f_msgcount; 1953 kp->ki_usecount = fp->f_usecount; 1954 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 1955 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 1956 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 1957 kp->ki_fops = PTRTOUINT64(fp->f_ops); 1958 kp->ki_foffset = fp->f_offset; 1959 kp->ki_fdata = PTRTOUINT64(fp->f_data); 1960 1961 /* vnode information to glue this file to something */ 1962 if (fp->f_type == DTYPE_VNODE) { 1963 struct vnode *vp = (struct vnode *)fp->f_data; 1964 1965 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 1966 kp->ki_vsize = vp->v_size; 1967 kp->ki_vtype = vp->v_type; 1968 kp->ki_vtag = vp->v_tag; 1969 kp->ki_vdata = PTRTOUINT64(vp->v_data); 1970 } 1971 1972 /* process information when retrieved via KERN_FILE_BYPID */ 1973 if (p) { 1974 kp->ki_pid = p->p_pid; 1975 kp->ki_fd = i; 1976 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 1977 } 1978 } 1979 1980 static int 1981 sysctl_doeproc(SYSCTLFN_ARGS) 1982 { 1983 struct eproc *eproc; 1984 struct kinfo_proc2 *kproc2; 1985 struct kinfo_proc *dp; 1986 struct proc *p; 1987 const struct proclist_desc *pd; 1988 char *where, *dp2; 1989 int type, op, arg; 1990 u_int elem_size, elem_count; 1991 size_t buflen, needed; 1992 int error; 1993 1994 if (namelen == 1 && name[0] == CTL_QUERY) 1995 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1996 1997 dp = oldp; 1998 dp2 = where = oldp; 1999 buflen = where != NULL ? *oldlenp : 0; 2000 error = 0; 2001 needed = 0; 2002 type = rnode->sysctl_num; 2003 2004 if (type == KERN_PROC) { 2005 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2006 return (EINVAL); 2007 op = name[0]; 2008 if (op != KERN_PROC_ALL) 2009 arg = name[1]; 2010 else 2011 arg = 0; /* Quell compiler warning */ 2012 elem_size = elem_count = 0; /* Ditto */ 2013 } else { 2014 if (namelen != 4) 2015 return (EINVAL); 2016 op = name[0]; 2017 arg = name[1]; 2018 elem_size = name[2]; 2019 elem_count = name[3]; 2020 } 2021 2022 if (type == KERN_PROC) { 2023 eproc = malloc(sizeof(*eproc), M_TEMP, M_WAITOK); 2024 kproc2 = NULL; 2025 } else { 2026 eproc = NULL; 2027 kproc2 = malloc(sizeof(*kproc2), M_TEMP, M_WAITOK); 2028 } 2029 mutex_enter(&proclist_lock); 2030 2031 pd = proclists; 2032 again: 2033 PROCLIST_FOREACH(p, pd->pd_list) { 2034 /* 2035 * Skip embryonic processes. 2036 */ 2037 if (p->p_stat == SIDL) 2038 continue; 2039 2040 if (kauth_authorize_process(l->l_cred, 2041 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2042 continue; 2043 2044 /* 2045 * TODO - make more efficient (see notes below). 2046 * do by session. 2047 */ 2048 switch (op) { 2049 2050 case KERN_PROC_PID: 2051 /* could do this with just a lookup */ 2052 if (p->p_pid != (pid_t)arg) 2053 continue; 2054 break; 2055 2056 case KERN_PROC_PGRP: 2057 /* could do this by traversing pgrp */ 2058 if (p->p_pgrp->pg_id != (pid_t)arg) 2059 continue; 2060 break; 2061 2062 case KERN_PROC_SESSION: 2063 if (p->p_session->s_sid != (pid_t)arg) 2064 continue; 2065 break; 2066 2067 case KERN_PROC_TTY: 2068 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2069 if ((p->p_lflag & PL_CONTROLT) == 0 || 2070 p->p_session->s_ttyp == NULL || 2071 p->p_session->s_ttyvp != NULL) 2072 continue; 2073 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2074 p->p_session->s_ttyp == NULL) { 2075 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2076 continue; 2077 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2078 continue; 2079 break; 2080 2081 case KERN_PROC_UID: 2082 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2083 continue; 2084 break; 2085 2086 case KERN_PROC_RUID: 2087 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2088 continue; 2089 break; 2090 2091 case KERN_PROC_GID: 2092 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2093 continue; 2094 break; 2095 2096 case KERN_PROC_RGID: 2097 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2098 continue; 2099 break; 2100 2101 case KERN_PROC_ALL: 2102 /* allow everything */ 2103 break; 2104 2105 default: 2106 error = EINVAL; 2107 goto cleanup; 2108 } 2109 if (type == KERN_PROC) { 2110 if (buflen >= sizeof(struct kinfo_proc)) { 2111 fill_eproc(p, eproc); 2112 error = dcopyout(l, p, &dp->kp_proc, 2113 sizeof(struct proc)); 2114 if (error) 2115 goto cleanup; 2116 error = dcopyout(l, eproc, &dp->kp_eproc, 2117 sizeof(*eproc)); 2118 if (error) 2119 goto cleanup; 2120 dp++; 2121 buflen -= sizeof(struct kinfo_proc); 2122 } 2123 needed += sizeof(struct kinfo_proc); 2124 } else { /* KERN_PROC2 */ 2125 if (buflen >= elem_size && elem_count > 0) { 2126 fill_kproc2(p, kproc2); 2127 /* 2128 * Copy out elem_size, but not larger than 2129 * the size of a struct kinfo_proc2. 2130 */ 2131 error = dcopyout(l, kproc2, dp2, 2132 min(sizeof(*kproc2), elem_size)); 2133 if (error) 2134 goto cleanup; 2135 dp2 += elem_size; 2136 buflen -= elem_size; 2137 elem_count--; 2138 } 2139 needed += elem_size; 2140 } 2141 } 2142 pd++; 2143 if (pd->pd_list != NULL) 2144 goto again; 2145 mutex_exit(&proclist_lock); 2146 2147 if (where != NULL) { 2148 if (type == KERN_PROC) 2149 *oldlenp = (char *)dp - where; 2150 else 2151 *oldlenp = dp2 - where; 2152 if (needed > *oldlenp) { 2153 error = ENOMEM; 2154 goto out; 2155 } 2156 } else { 2157 needed += KERN_PROCSLOP; 2158 *oldlenp = needed; 2159 } 2160 if (kproc2) 2161 free(kproc2, M_TEMP); 2162 if (eproc) 2163 free(eproc, M_TEMP); 2164 return 0; 2165 cleanup: 2166 mutex_exit(&proclist_lock); 2167 out: 2168 if (kproc2) 2169 free(kproc2, M_TEMP); 2170 if (eproc) 2171 free(eproc, M_TEMP); 2172 return error; 2173 } 2174 2175 /* 2176 * sysctl helper routine for kern.proc_args pseudo-subtree. 2177 */ 2178 static int 2179 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2180 { 2181 struct ps_strings pss; 2182 struct proc *p; 2183 size_t len, i; 2184 struct uio auio; 2185 struct iovec aiov; 2186 pid_t pid; 2187 int nargv, type, error; 2188 char *arg; 2189 char **argv = NULL; 2190 char *tmp; 2191 struct vmspace *vmspace; 2192 vaddr_t psstr_addr; 2193 vaddr_t offsetn; 2194 vaddr_t offsetv; 2195 2196 if (namelen == 1 && name[0] == CTL_QUERY) 2197 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2198 2199 if (newp != NULL || namelen != 2) 2200 return (EINVAL); 2201 pid = name[0]; 2202 type = name[1]; 2203 2204 switch (type) { 2205 case KERN_PROC_ARGV: 2206 case KERN_PROC_NARGV: 2207 case KERN_PROC_ENV: 2208 case KERN_PROC_NENV: 2209 /* ok */ 2210 break; 2211 default: 2212 return (EINVAL); 2213 } 2214 2215 mutex_enter(&proclist_lock); 2216 2217 /* check pid */ 2218 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2219 error = EINVAL; 2220 goto out_locked; 2221 } 2222 2223 error = kauth_authorize_process(l->l_cred, 2224 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2225 if (error) { 2226 goto out_locked; 2227 } 2228 2229 /* only root or same user change look at the environment */ 2230 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2231 if (kauth_authorize_generic(l->l_cred, KAUTH_GENERIC_ISSUSER, 2232 NULL) != 0) { 2233 if (kauth_cred_getuid(l->l_cred) != 2234 kauth_cred_getuid(p->p_cred) || 2235 kauth_cred_getuid(l->l_cred) != 2236 kauth_cred_getsvuid(p->p_cred)) { 2237 error = EPERM; 2238 goto out_locked; 2239 } 2240 } 2241 } 2242 2243 if (oldp == NULL) { 2244 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2245 *oldlenp = sizeof (int); 2246 else 2247 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2248 error = 0; 2249 goto out_locked; 2250 } 2251 2252 /* 2253 * Zombies don't have a stack, so we can't read their psstrings. 2254 * System processes also don't have a user stack. 2255 */ 2256 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2257 error = EINVAL; 2258 goto out_locked; 2259 } 2260 2261 /* 2262 * Lock the process down in memory. 2263 */ 2264 /* XXXCDC: how should locking work here? */ 2265 if ((l->l_flag & LW_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2266 error = EFAULT; 2267 goto out_locked; 2268 } 2269 2270 psstr_addr = (vaddr_t)p->p_psstr; 2271 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2272 offsetn = p->p_psnargv; 2273 offsetv = p->p_psargv; 2274 } else { 2275 offsetn = p->p_psnenv; 2276 offsetv = p->p_psenv; 2277 } 2278 vmspace = p->p_vmspace; 2279 vmspace->vm_refcnt++; /* XXX */ 2280 2281 mutex_exit(&proclist_lock); 2282 2283 /* 2284 * Allocate a temporary buffer to hold the arguments. 2285 */ 2286 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2287 2288 /* 2289 * Read in the ps_strings structure. 2290 */ 2291 aiov.iov_base = &pss; 2292 aiov.iov_len = sizeof(pss); 2293 auio.uio_iov = &aiov; 2294 auio.uio_iovcnt = 1; 2295 auio.uio_offset = psstr_addr; 2296 auio.uio_resid = sizeof(pss); 2297 auio.uio_rw = UIO_READ; 2298 UIO_SETUP_SYSSPACE(&auio); 2299 error = uvm_io(&vmspace->vm_map, &auio); 2300 if (error) 2301 goto done; 2302 2303 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2304 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2305 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2306 *oldlenp = sizeof(nargv); 2307 goto done; 2308 } 2309 /* 2310 * Now read the address of the argument vector. 2311 */ 2312 switch (type) { 2313 case KERN_PROC_ARGV: 2314 /* FALLTHROUGH */ 2315 case KERN_PROC_ENV: 2316 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2317 break; 2318 default: 2319 return (EINVAL); 2320 } 2321 2322 #ifdef COMPAT_NETBSD32 2323 if (p->p_flag & PK_32) 2324 len = sizeof(netbsd32_charp) * nargv; 2325 else 2326 #endif 2327 len = sizeof(char *) * nargv; 2328 2329 argv = malloc(len, M_TEMP, M_WAITOK); 2330 2331 aiov.iov_base = argv; 2332 aiov.iov_len = len; 2333 auio.uio_iov = &aiov; 2334 auio.uio_iovcnt = 1; 2335 auio.uio_offset = (off_t)(unsigned long)tmp; 2336 auio.uio_resid = len; 2337 auio.uio_rw = UIO_READ; 2338 UIO_SETUP_SYSSPACE(&auio); 2339 error = uvm_io(&vmspace->vm_map, &auio); 2340 if (error) 2341 goto done; 2342 2343 /* 2344 * Now copy each string. 2345 */ 2346 len = 0; /* bytes written to user buffer */ 2347 for (i = 0; i < nargv; i++) { 2348 int finished = 0; 2349 vaddr_t base; 2350 size_t xlen; 2351 int j; 2352 2353 #ifdef COMPAT_NETBSD32 2354 if (p->p_flag & PK_32) { 2355 netbsd32_charp *argv32; 2356 2357 argv32 = (netbsd32_charp *)argv; 2358 2359 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2360 } else 2361 #endif 2362 base = (vaddr_t)argv[i]; 2363 2364 /* 2365 * The program has messed around with its arguments, 2366 * possibly deleting some, and replacing them with 2367 * NULL's. Treat this as the last argument and not 2368 * a failure. 2369 */ 2370 if (base == 0) 2371 break; 2372 2373 while (!finished) { 2374 xlen = PAGE_SIZE - (base & PAGE_MASK); 2375 2376 aiov.iov_base = arg; 2377 aiov.iov_len = PAGE_SIZE; 2378 auio.uio_iov = &aiov; 2379 auio.uio_iovcnt = 1; 2380 auio.uio_offset = base; 2381 auio.uio_resid = xlen; 2382 auio.uio_rw = UIO_READ; 2383 UIO_SETUP_SYSSPACE(&auio); 2384 error = uvm_io(&vmspace->vm_map, &auio); 2385 if (error) 2386 goto done; 2387 2388 /* Look for the end of the string */ 2389 for (j = 0; j < xlen; j++) { 2390 if (arg[j] == '\0') { 2391 xlen = j + 1; 2392 finished = 1; 2393 break; 2394 } 2395 } 2396 2397 /* Check for user buffer overflow */ 2398 if (len + xlen > *oldlenp) { 2399 finished = 1; 2400 if (len > *oldlenp) 2401 xlen = 0; 2402 else 2403 xlen = *oldlenp - len; 2404 } 2405 2406 /* Copyout the page */ 2407 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2408 if (error) 2409 goto done; 2410 2411 len += xlen; 2412 base += xlen; 2413 } 2414 } 2415 *oldlenp = len; 2416 2417 done: 2418 if (argv != NULL) 2419 free(argv, M_TEMP); 2420 2421 uvmspace_free(vmspace); 2422 2423 free(arg, M_TEMP); 2424 return error; 2425 2426 out_locked: 2427 mutex_exit(&proclist_lock); 2428 return error; 2429 } 2430 2431 static int 2432 sysctl_security_setidcore(SYSCTLFN_ARGS) 2433 { 2434 int newsize, error; 2435 struct sysctlnode node; 2436 2437 node = *rnode; 2438 node.sysctl_data = &newsize; 2439 newsize = *(int *)rnode->sysctl_data; 2440 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2441 if (error || newp == NULL) 2442 return error; 2443 2444 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2445 0, NULL, NULL, NULL)) 2446 return (EPERM); 2447 2448 *(int *)rnode->sysctl_data = newsize; 2449 2450 return 0; 2451 } 2452 2453 static int 2454 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2455 { 2456 int error; 2457 char *newsetidcorename; 2458 struct sysctlnode node; 2459 2460 newsetidcorename = PNBUF_GET(); 2461 node = *rnode; 2462 node.sysctl_data = newsetidcorename; 2463 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2464 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2465 if (error || newp == NULL) { 2466 goto out; 2467 } 2468 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2469 0, NULL, NULL, NULL)) { 2470 error = EPERM; 2471 goto out; 2472 } 2473 if (strlen(newsetidcorename) == 0) { 2474 error = EINVAL; 2475 goto out; 2476 } 2477 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2478 out: 2479 PNBUF_PUT(newsetidcorename); 2480 return error; 2481 } 2482 2483 /* 2484 * sysctl helper routine for kern.cp_id node. Maps cpus to their 2485 * cpuids. 2486 */ 2487 static int 2488 sysctl_kern_cpid(SYSCTLFN_ARGS) 2489 { 2490 struct sysctlnode node = *rnode; 2491 2492 #ifndef MULTIPROCESSOR 2493 uint64_t id; 2494 2495 if (namelen == 1) { 2496 if (name[0] != 0) 2497 return (ENOENT); 2498 /* 2499 * you're allowed to ask for the zero'th processor 2500 */ 2501 name++; 2502 namelen--; 2503 } 2504 node.sysctl_data = &id; 2505 node.sysctl_size = sizeof(id); 2506 id = cpu_number(); 2507 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2508 2509 #else /* MULTIPROCESSOR */ 2510 uint64_t *cp_id = NULL; 2511 int error, n = ncpu; 2512 struct cpu_info *ci; 2513 CPU_INFO_ITERATOR cii; 2514 2515 /* 2516 * Here you may either retrieve a single cpu id or the whole 2517 * set. The size you get back when probing depends on what 2518 * you ask for. 2519 */ 2520 switch (namelen) { 2521 case 0: 2522 node.sysctl_size = n * sizeof(uint64_t); 2523 n = -2; /* ALL */ 2524 break; 2525 case 1: 2526 if (name[0] < 0 || name[0] >= n) 2527 return (ENOENT); /* ENOSUCHPROCESSOR */ 2528 node.sysctl_size = sizeof(uint64_t); 2529 n = name[0]; 2530 /* 2531 * adjust these so that sysctl_lookup() will be happy 2532 */ 2533 name++; 2534 namelen--; 2535 break; 2536 default: 2537 return (EINVAL); 2538 } 2539 2540 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2541 if (cp_id == NULL) 2542 return (ENOMEM); 2543 node.sysctl_data = cp_id; 2544 memset(cp_id, 0, node.sysctl_size); 2545 2546 for (CPU_INFO_FOREACH(cii, ci)) { 2547 if (n <= 0) 2548 cp_id[0] = ci->ci_cpuid; 2549 /* 2550 * if a specific processor was requested and we just 2551 * did it, we're done here 2552 */ 2553 if (n == 0) 2554 break; 2555 /* 2556 * if doing "all", skip to next cp_id slot for next processor 2557 */ 2558 if (n == -2) 2559 cp_id++; 2560 /* 2561 * if we're doing a specific processor, we're one 2562 * processor closer 2563 */ 2564 if (n > 0) 2565 n--; 2566 } 2567 2568 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2569 free(node.sysctl_data, M_TEMP); 2570 return (error); 2571 2572 #endif /* MULTIPROCESSOR */ 2573 } 2574 2575 /* 2576 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 2577 * calculate on the fly taking into account integer overflow and the 2578 * current wired count. 2579 */ 2580 static int 2581 sysctl_hw_usermem(SYSCTLFN_ARGS) 2582 { 2583 u_int ui; 2584 u_quad_t uq; 2585 struct sysctlnode node; 2586 2587 node = *rnode; 2588 switch (rnode->sysctl_num) { 2589 case HW_USERMEM: 2590 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2591 ui = UINT_MAX; 2592 else 2593 ui *= PAGE_SIZE; 2594 node.sysctl_data = &ui; 2595 break; 2596 case HW_USERMEM64: 2597 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2598 node.sysctl_data = &uq; 2599 break; 2600 default: 2601 return (EINVAL); 2602 } 2603 2604 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2605 } 2606 2607 /* 2608 * sysctl helper routine for kern.cnmagic node. Pulls the old value 2609 * out, encoded, and stuffs the new value in for decoding. 2610 */ 2611 static int 2612 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2613 { 2614 char magic[CNS_LEN]; 2615 int error; 2616 struct sysctlnode node; 2617 2618 if (oldp) 2619 cn_get_magic(magic, CNS_LEN); 2620 node = *rnode; 2621 node.sysctl_data = &magic[0]; 2622 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2623 if (error || newp == NULL) 2624 return (error); 2625 2626 return (cn_set_magic(magic)); 2627 } 2628 2629 /* 2630 * ******************************************************************** 2631 * section 3: public helper routines that are used for more than one 2632 * node 2633 * ******************************************************************** 2634 */ 2635 2636 /* 2637 * sysctl helper routine for the kern.root_device node and some ports' 2638 * machdep.root_device nodes. 2639 */ 2640 int 2641 sysctl_root_device(SYSCTLFN_ARGS) 2642 { 2643 struct sysctlnode node; 2644 2645 node = *rnode; 2646 node.sysctl_data = root_device->dv_xname; 2647 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2648 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2649 } 2650 2651 /* 2652 * sysctl helper routine for kern.consdev, dependent on the current 2653 * state of the console. Also used for machdep.console_device on some 2654 * ports. 2655 */ 2656 int 2657 sysctl_consdev(SYSCTLFN_ARGS) 2658 { 2659 dev_t consdev; 2660 struct sysctlnode node; 2661 2662 if (cn_tab != NULL) 2663 consdev = cn_tab->cn_dev; 2664 else 2665 consdev = NODEV; 2666 node = *rnode; 2667 node.sysctl_data = &consdev; 2668 node.sysctl_size = sizeof(consdev); 2669 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2670 } 2671 2672 /* 2673 * ******************************************************************** 2674 * section 4: support for some helpers 2675 * ******************************************************************** 2676 */ 2677 2678 /* 2679 * Fill in a kinfo_proc2 structure for the specified process. 2680 */ 2681 static void 2682 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2683 { 2684 struct tty *tp; 2685 struct lwp *l, *l2; 2686 struct timeval ut, st, rt; 2687 sigset_t ss1, ss2; 2688 2689 memset(ki, 0, sizeof(*ki)); 2690 2691 ki->p_paddr = PTRTOUINT64(p); 2692 ki->p_fd = PTRTOUINT64(p->p_fd); 2693 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2694 ki->p_stats = PTRTOUINT64(p->p_stats); 2695 ki->p_limit = PTRTOUINT64(p->p_limit); 2696 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2697 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2698 ki->p_sess = PTRTOUINT64(p->p_session); 2699 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2700 ki->p_ru = PTRTOUINT64(&p->p_stats->p_ru); 2701 2702 ki->p_eflag = 0; 2703 ki->p_exitsig = p->p_exitsig; 2704 2705 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2706 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2707 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2708 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2709 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2710 2711 ki->p_pid = p->p_pid; 2712 if (p->p_pptr) 2713 ki->p_ppid = p->p_pptr->p_pid; 2714 else 2715 ki->p_ppid = 0; 2716 ki->p_sid = p->p_session->s_sid; 2717 ki->p__pgid = p->p_pgrp->pg_id; 2718 2719 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2720 2721 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2722 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2723 ki->p_gid = kauth_cred_getegid(p->p_cred); 2724 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2725 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2726 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2727 2728 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2729 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2730 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0])), 2731 UIO_SYSSPACE); 2732 2733 ki->p_jobc = p->p_pgrp->pg_jobc; 2734 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2735 ki->p_tdev = tp->t_dev; 2736 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2737 ki->p_tsess = PTRTOUINT64(tp->t_session); 2738 } else { 2739 ki->p_tdev = NODEV; 2740 } 2741 2742 2743 mutex_enter(&p->p_smutex); 2744 2745 ki->p_uticks = p->p_uticks; 2746 ki->p_sticks = p->p_sticks; 2747 ki->p_iticks = p->p_iticks; 2748 2749 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2750 ki->p_traceflag = p->p_traceflag; 2751 2752 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2753 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2754 2755 ki->p_cpticks = 0; 2756 ki->p_pctcpu = p->p_pctcpu; 2757 ki->p_estcpu = 0; 2758 ss1 = p->p_sigpend.sp_set; 2759 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2760 /* This is hardly correct, but... */ 2761 sigplusset(&l->l_sigpend.sp_set, &ss1); 2762 sigplusset(&l->l_sigmask, &ss2); 2763 ki->p_cpticks += l->l_cpticks; 2764 ki->p_pctcpu += l->l_pctcpu; 2765 ki->p_estcpu += l->l_estcpu; 2766 } 2767 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2768 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2769 2770 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2771 ki->p_realstat = p->p_stat; 2772 ki->p_nice = p->p_nice; 2773 2774 ki->p_xstat = p->p_xstat; 2775 ki->p_acflag = p->p_acflag; 2776 2777 strncpy(ki->p_comm, p->p_comm, 2778 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2779 2780 strncpy(ki->p_login, p->p_session->s_login, 2781 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2782 2783 ki->p_nlwps = p->p_nlwps; 2784 ki->p_realflag = ki->p_flag; 2785 2786 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2787 ki->p_vm_rssize = 0; 2788 ki->p_vm_tsize = 0; 2789 ki->p_vm_dsize = 0; 2790 ki->p_vm_ssize = 0; 2791 ki->p_nrlwps = 0; 2792 l = NULL; 2793 } else { 2794 struct vmspace *vm = p->p_vmspace; 2795 int tmp; 2796 2797 ki->p_vm_rssize = vm_resident_count(vm); 2798 ki->p_vm_tsize = vm->vm_tsize; 2799 ki->p_vm_dsize = vm->vm_dsize; 2800 ki->p_vm_ssize = vm->vm_ssize; 2801 2802 /* Pick a "representative" LWP */ 2803 l = proc_representative_lwp(p, &tmp, 1); 2804 lwp_lock(l); 2805 ki->p_nrlwps = tmp; 2806 ki->p_forw = 0; 2807 ki->p_back = 0; 2808 ki->p_addr = PTRTOUINT64(l->l_addr); 2809 ki->p_stat = l->l_stat; 2810 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2811 ki->p_swtime = l->l_swtime; 2812 ki->p_slptime = l->l_slptime; 2813 if (l->l_stat == LSONPROC) 2814 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2815 else 2816 ki->p_schedflags = 0; 2817 ki->p_holdcnt = l->l_holdcnt; 2818 ki->p_priority = lwp_eprio(l); 2819 ki->p_usrpri = l->l_priority; 2820 if (l->l_wmesg) 2821 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2822 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2823 lwp_unlock(l); 2824 } 2825 if (p->p_session->s_ttyvp) 2826 ki->p_eflag |= EPROC_CTTY; 2827 if (SESS_LEADER(p)) 2828 ki->p_eflag |= EPROC_SLEADER; 2829 2830 /* XXX Is this double check necessary? */ 2831 if (P_ZOMBIE(p)) { 2832 ki->p_uvalid = 0; 2833 ki->p_rtime_sec = 0; 2834 ki->p_rtime_usec = 0; 2835 } else { 2836 ki->p_uvalid = 1; 2837 2838 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2839 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2840 2841 calcru(p, &ut, &st, NULL, &rt); 2842 ki->p_rtime_sec = rt.tv_sec; 2843 ki->p_rtime_usec = rt.tv_usec; 2844 ki->p_uutime_sec = ut.tv_sec; 2845 ki->p_uutime_usec = ut.tv_usec; 2846 ki->p_ustime_sec = st.tv_sec; 2847 ki->p_ustime_usec = st.tv_usec; 2848 2849 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2850 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2851 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2852 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2853 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2854 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2855 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2856 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2857 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2858 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2859 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2860 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2861 2862 ki->p_uru_nvcsw = 0; 2863 ki->p_uru_nivcsw = 0; 2864 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 2865 ki->p_uru_nvcsw += (l->l_ncsw - l->l_nivcsw); 2866 ki->p_uru_nivcsw += l->l_nivcsw; 2867 } 2868 2869 timeradd(&p->p_stats->p_cru.ru_utime, 2870 &p->p_stats->p_cru.ru_stime, &ut); 2871 ki->p_uctime_sec = ut.tv_sec; 2872 ki->p_uctime_usec = ut.tv_usec; 2873 } 2874 #ifdef MULTIPROCESSOR 2875 if (l != NULL) 2876 ki->p_cpuid = l->l_cpu->ci_cpuid; 2877 else 2878 #endif 2879 ki->p_cpuid = KI_NOCPU; 2880 2881 mutex_exit(&p->p_smutex); 2882 } 2883 2884 /* 2885 * Fill in a kinfo_lwp structure for the specified lwp. 2886 */ 2887 static void 2888 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2889 { 2890 struct proc *p = l->l_proc; 2891 struct timeval tv; 2892 2893 kl->l_forw = 0; 2894 kl->l_back = 0; 2895 kl->l_laddr = PTRTOUINT64(l); 2896 kl->l_addr = PTRTOUINT64(l->l_addr); 2897 kl->l_stat = l->l_stat; 2898 kl->l_lid = l->l_lid; 2899 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 2900 2901 kl->l_swtime = l->l_swtime; 2902 kl->l_slptime = l->l_slptime; 2903 if (l->l_stat == LSONPROC) 2904 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2905 else 2906 kl->l_schedflags = 0; 2907 kl->l_holdcnt = l->l_holdcnt; 2908 kl->l_priority = lwp_eprio(l); 2909 kl->l_usrpri = l->l_priority; 2910 if (l->l_wmesg) 2911 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2912 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2913 #ifdef MULTIPROCESSOR 2914 kl->l_cpuid = l->l_cpu->ci_cpuid; 2915 #else 2916 kl->l_cpuid = KI_NOCPU; 2917 #endif 2918 bintime2timeval(&l->l_rtime, &tv); 2919 kl->l_rtime_sec = tv.tv_sec; 2920 kl->l_rtime_usec = tv.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
Indexes created Wed Oct 01 15:09:59 GMT 2025