init_sysctl.c revision 1.107
1 /* $NetBSD: init_sysctl.c,v 1.107 2007/10/08 18:09:37 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Brown. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: init_sysctl.c,v 1.107 2007/10/08 18:09:37 ad Exp $"); 41 42 #include "opt_sysv.h" 43 #include "opt_multiprocessor.h" 44 #include "opt_posix.h" 45 #include "opt_compat_netbsd32.h" 46 #include "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 <machine/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 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 201 202 static u_int sysctl_map_flags(const u_int *, u_int); 203 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 204 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 205 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 206 int); 207 208 /* 209 * ******************************************************************** 210 * section 1: setup routines 211 * ******************************************************************** 212 * these functions are stuffed into a link set for sysctl setup 213 * functions. they're never called or referenced from anywhere else. 214 * ******************************************************************** 215 */ 216 217 /* 218 * sets up the base nodes... 219 */ 220 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 221 { 222 223 sysctl_createv(clog, 0, NULL, NULL, 224 CTLFLAG_PERMANENT, 225 CTLTYPE_NODE, "kern", 226 SYSCTL_DESCR("High kernel"), 227 NULL, 0, NULL, 0, 228 CTL_KERN, CTL_EOL); 229 sysctl_createv(clog, 0, NULL, NULL, 230 CTLFLAG_PERMANENT, 231 CTLTYPE_NODE, "vm", 232 SYSCTL_DESCR("Virtual memory"), 233 NULL, 0, NULL, 0, 234 CTL_VM, CTL_EOL); 235 sysctl_createv(clog, 0, NULL, NULL, 236 CTLFLAG_PERMANENT, 237 CTLTYPE_NODE, "vfs", 238 SYSCTL_DESCR("Filesystem"), 239 NULL, 0, NULL, 0, 240 CTL_VFS, CTL_EOL); 241 sysctl_createv(clog, 0, NULL, NULL, 242 CTLFLAG_PERMANENT, 243 CTLTYPE_NODE, "net", 244 SYSCTL_DESCR("Networking"), 245 NULL, 0, NULL, 0, 246 CTL_NET, CTL_EOL); 247 sysctl_createv(clog, 0, NULL, NULL, 248 CTLFLAG_PERMANENT, 249 CTLTYPE_NODE, "debug", 250 SYSCTL_DESCR("Debugging"), 251 NULL, 0, NULL, 0, 252 CTL_DEBUG, CTL_EOL); 253 sysctl_createv(clog, 0, NULL, NULL, 254 CTLFLAG_PERMANENT, 255 CTLTYPE_NODE, "hw", 256 SYSCTL_DESCR("Generic CPU, I/O"), 257 NULL, 0, NULL, 0, 258 CTL_HW, CTL_EOL); 259 sysctl_createv(clog, 0, NULL, NULL, 260 CTLFLAG_PERMANENT, 261 CTLTYPE_NODE, "machdep", 262 SYSCTL_DESCR("Machine dependent"), 263 NULL, 0, NULL, 0, 264 CTL_MACHDEP, CTL_EOL); 265 /* 266 * this node is inserted so that the sysctl nodes in libc can 267 * operate. 268 */ 269 sysctl_createv(clog, 0, NULL, NULL, 270 CTLFLAG_PERMANENT, 271 CTLTYPE_NODE, "user", 272 SYSCTL_DESCR("User-level"), 273 NULL, 0, NULL, 0, 274 CTL_USER, CTL_EOL); 275 sysctl_createv(clog, 0, NULL, NULL, 276 CTLFLAG_PERMANENT, 277 CTLTYPE_NODE, "ddb", 278 SYSCTL_DESCR("In-kernel debugger"), 279 NULL, 0, NULL, 0, 280 CTL_DDB, CTL_EOL); 281 sysctl_createv(clog, 0, NULL, NULL, 282 CTLFLAG_PERMANENT, 283 CTLTYPE_NODE, "proc", 284 SYSCTL_DESCR("Per-process"), 285 NULL, 0, NULL, 0, 286 CTL_PROC, CTL_EOL); 287 sysctl_createv(clog, 0, NULL, NULL, 288 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 289 CTLTYPE_NODE, "vendor", 290 SYSCTL_DESCR("Vendor specific"), 291 NULL, 0, NULL, 0, 292 CTL_VENDOR, CTL_EOL); 293 sysctl_createv(clog, 0, NULL, NULL, 294 CTLFLAG_PERMANENT, 295 CTLTYPE_NODE, "emul", 296 SYSCTL_DESCR("Emulation settings"), 297 NULL, 0, NULL, 0, 298 CTL_EMUL, CTL_EOL); 299 sysctl_createv(clog, 0, NULL, NULL, 300 CTLFLAG_PERMANENT, 301 CTLTYPE_NODE, "security", 302 SYSCTL_DESCR("Security"), 303 NULL, 0, NULL, 0, 304 CTL_SECURITY, CTL_EOL); 305 } 306 307 /* 308 * this setup routine is a replacement for kern_sysctl() 309 */ 310 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 311 { 312 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 313 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 314 extern int dumponpanic; /* defined in kern/subr_prf.c */ 315 const struct sysctlnode *rnode; 316 317 sysctl_createv(clog, 0, NULL, NULL, 318 CTLFLAG_PERMANENT, 319 CTLTYPE_NODE, "kern", NULL, 320 NULL, 0, NULL, 0, 321 CTL_KERN, CTL_EOL); 322 323 sysctl_createv(clog, 0, NULL, NULL, 324 CTLFLAG_PERMANENT, 325 CTLTYPE_STRING, "ostype", 326 SYSCTL_DESCR("Operating system type"), 327 NULL, 0, &ostype, 0, 328 CTL_KERN, KERN_OSTYPE, CTL_EOL); 329 sysctl_createv(clog, 0, NULL, NULL, 330 CTLFLAG_PERMANENT, 331 CTLTYPE_STRING, "osrelease", 332 SYSCTL_DESCR("Operating system release"), 333 NULL, 0, &osrelease, 0, 334 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 335 sysctl_createv(clog, 0, NULL, NULL, 336 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 337 CTLTYPE_INT, "osrevision", 338 SYSCTL_DESCR("Operating system revision"), 339 NULL, __NetBSD_Version__, NULL, 0, 340 CTL_KERN, KERN_OSREV, CTL_EOL); 341 sysctl_createv(clog, 0, NULL, NULL, 342 CTLFLAG_PERMANENT, 343 CTLTYPE_STRING, "version", 344 SYSCTL_DESCR("Kernel version"), 345 NULL, 0, &version, 0, 346 CTL_KERN, KERN_VERSION, CTL_EOL); 347 sysctl_createv(clog, 0, NULL, NULL, 348 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 349 CTLTYPE_INT, "maxvnodes", 350 SYSCTL_DESCR("Maximum number of vnodes"), 351 sysctl_kern_maxvnodes, 0, NULL, 0, 352 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 353 sysctl_createv(clog, 0, NULL, NULL, 354 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 355 CTLTYPE_INT, "maxproc", 356 SYSCTL_DESCR("Maximum number of simultaneous processes"), 357 sysctl_kern_maxproc, 0, NULL, 0, 358 CTL_KERN, KERN_MAXPROC, CTL_EOL); 359 sysctl_createv(clog, 0, NULL, NULL, 360 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 361 CTLTYPE_INT, "maxfiles", 362 SYSCTL_DESCR("Maximum number of open files"), 363 NULL, 0, &maxfiles, 0, 364 CTL_KERN, KERN_MAXFILES, CTL_EOL); 365 sysctl_createv(clog, 0, NULL, NULL, 366 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 367 CTLTYPE_INT, "argmax", 368 SYSCTL_DESCR("Maximum number of bytes of arguments to " 369 "execve(2)"), 370 NULL, ARG_MAX, NULL, 0, 371 CTL_KERN, KERN_ARGMAX, CTL_EOL); 372 sysctl_createv(clog, 0, NULL, NULL, 373 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 374 CTLTYPE_STRING, "hostname", 375 SYSCTL_DESCR("System hostname"), 376 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 377 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 378 sysctl_createv(clog, 0, NULL, NULL, 379 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 380 CTLTYPE_INT, "hostid", 381 SYSCTL_DESCR("System host ID number"), 382 sysctl_kern_hostid, 0, NULL, 0, 383 CTL_KERN, KERN_HOSTID, CTL_EOL); 384 sysctl_createv(clog, 0, NULL, NULL, 385 CTLFLAG_PERMANENT, 386 CTLTYPE_STRUCT, "clockrate", 387 SYSCTL_DESCR("Kernel clock rates"), 388 sysctl_kern_clockrate, 0, NULL, 389 sizeof(struct clockinfo), 390 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 391 sysctl_createv(clog, 0, NULL, NULL, 392 CTLFLAG_PERMANENT, 393 CTLTYPE_INT, "hardclock_ticks", 394 SYSCTL_DESCR("Number of hardclock ticks"), 395 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 396 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 397 sysctl_createv(clog, 0, NULL, NULL, 398 CTLFLAG_PERMANENT, 399 CTLTYPE_STRUCT, "vnode", 400 SYSCTL_DESCR("System vnode table"), 401 sysctl_kern_vnode, 0, NULL, 0, 402 CTL_KERN, KERN_VNODE, CTL_EOL); 403 sysctl_createv(clog, 0, NULL, NULL, 404 CTLFLAG_PERMANENT, 405 CTLTYPE_STRUCT, "file", 406 SYSCTL_DESCR("System open file table"), 407 sysctl_kern_file, 0, NULL, 0, 408 CTL_KERN, KERN_FILE, CTL_EOL); 409 #ifndef GPROF 410 sysctl_createv(clog, 0, NULL, NULL, 411 CTLFLAG_PERMANENT, 412 CTLTYPE_NODE, "profiling", 413 SYSCTL_DESCR("Profiling information (not available)"), 414 sysctl_notavail, 0, NULL, 0, 415 CTL_KERN, KERN_PROF, CTL_EOL); 416 #endif 417 sysctl_createv(clog, 0, NULL, NULL, 418 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 419 CTLTYPE_INT, "posix1version", 420 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 421 "with which the operating system attempts " 422 "to comply"), 423 NULL, _POSIX_VERSION, NULL, 0, 424 CTL_KERN, KERN_POSIX1, CTL_EOL); 425 sysctl_createv(clog, 0, NULL, NULL, 426 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 427 CTLTYPE_INT, "ngroups", 428 SYSCTL_DESCR("Maximum number of supplemental groups"), 429 NULL, NGROUPS_MAX, NULL, 0, 430 CTL_KERN, KERN_NGROUPS, CTL_EOL); 431 sysctl_createv(clog, 0, NULL, NULL, 432 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 433 CTLTYPE_INT, "job_control", 434 SYSCTL_DESCR("Whether job control is available"), 435 NULL, 1, NULL, 0, 436 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 437 sysctl_createv(clog, 0, NULL, NULL, 438 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 439 CTLTYPE_INT, "saved_ids", 440 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 441 "available"), NULL, 442 #ifdef _POSIX_SAVED_IDS 443 1, 444 #else /* _POSIX_SAVED_IDS */ 445 0, 446 #endif /* _POSIX_SAVED_IDS */ 447 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 448 sysctl_createv(clog, 0, NULL, NULL, 449 CTLFLAG_PERMANENT, 450 CTLTYPE_STRUCT, "boottime", 451 SYSCTL_DESCR("System boot time"), 452 NULL, 0, &boottime, sizeof(boottime), 453 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 454 sysctl_createv(clog, 0, NULL, NULL, 455 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 456 CTLTYPE_STRING, "domainname", 457 SYSCTL_DESCR("YP domain name"), 458 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 459 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 460 sysctl_createv(clog, 0, NULL, NULL, 461 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 462 CTLTYPE_INT, "maxpartitions", 463 SYSCTL_DESCR("Maximum number of partitions allowed per " 464 "disk"), 465 NULL, MAXPARTITIONS, NULL, 0, 466 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 467 sysctl_createv(clog, 0, NULL, NULL, 468 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 469 CTLTYPE_INT, "rawpartition", 470 SYSCTL_DESCR("Raw partition of a disk"), 471 NULL, RAW_PART, NULL, 0, 472 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 473 sysctl_createv(clog, 0, NULL, NULL, 474 CTLFLAG_PERMANENT, 475 CTLTYPE_STRUCT, "timex", NULL, 476 sysctl_notavail, 0, NULL, 0, 477 CTL_KERN, KERN_TIMEX, CTL_EOL); 478 sysctl_createv(clog, 0, NULL, NULL, 479 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 480 CTLTYPE_INT, "rtc_offset", 481 SYSCTL_DESCR("Offset of real time clock from UTC in " 482 "minutes"), 483 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 484 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 485 sysctl_createv(clog, 0, NULL, NULL, 486 CTLFLAG_PERMANENT, 487 CTLTYPE_STRING, "root_device", 488 SYSCTL_DESCR("Name of the root device"), 489 sysctl_root_device, 0, NULL, 0, 490 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 491 sysctl_createv(clog, 0, NULL, NULL, 492 CTLFLAG_PERMANENT, 493 CTLTYPE_INT, "msgbufsize", 494 SYSCTL_DESCR("Size of the kernel message buffer"), 495 sysctl_msgbuf, 0, NULL, 0, 496 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 497 sysctl_createv(clog, 0, NULL, NULL, 498 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 499 CTLTYPE_INT, "fsync", 500 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 501 "Synchronization Option is available on " 502 "this system"), 503 NULL, 1, NULL, 0, 504 CTL_KERN, KERN_FSYNC, CTL_EOL); 505 sysctl_createv(clog, 0, NULL, NULL, 506 CTLFLAG_PERMANENT, 507 CTLTYPE_NODE, "ipc", 508 SYSCTL_DESCR("SysV IPC options"), 509 NULL, 0, NULL, 0, 510 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 511 sysctl_createv(clog, 0, NULL, NULL, 512 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 513 CTLTYPE_INT, "sysvmsg", 514 SYSCTL_DESCR("System V style message support available"), 515 NULL, 516 #ifdef SYSVMSG 517 1, 518 #else /* SYSVMSG */ 519 0, 520 #endif /* SYSVMSG */ 521 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 522 sysctl_createv(clog, 0, NULL, NULL, 523 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 524 CTLTYPE_INT, "sysvsem", 525 SYSCTL_DESCR("System V style semaphore support " 526 "available"), NULL, 527 #ifdef SYSVSEM 528 1, 529 #else /* SYSVSEM */ 530 0, 531 #endif /* SYSVSEM */ 532 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 533 sysctl_createv(clog, 0, NULL, NULL, 534 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 535 CTLTYPE_INT, "sysvshm", 536 SYSCTL_DESCR("System V style shared memory support " 537 "available"), NULL, 538 #ifdef SYSVSHM 539 1, 540 #else /* SYSVSHM */ 541 0, 542 #endif /* SYSVSHM */ 543 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 544 sysctl_createv(clog, 0, NULL, NULL, 545 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 546 CTLTYPE_INT, "synchronized_io", 547 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 548 "I/O Option is available on this system"), 549 NULL, 1, NULL, 0, 550 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 551 sysctl_createv(clog, 0, NULL, NULL, 552 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 553 CTLTYPE_INT, "iov_max", 554 SYSCTL_DESCR("Maximum number of iovec structures per " 555 "process"), 556 NULL, IOV_MAX, NULL, 0, 557 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 558 sysctl_createv(clog, 0, NULL, NULL, 559 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 560 CTLTYPE_INT, "mapped_files", 561 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 562 "Files Option is available on this system"), 563 NULL, 1, NULL, 0, 564 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 565 sysctl_createv(clog, 0, NULL, NULL, 566 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 567 CTLTYPE_INT, "memlock", 568 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 569 "Locking Option is available on this " 570 "system"), 571 NULL, 1, NULL, 0, 572 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 573 sysctl_createv(clog, 0, NULL, NULL, 574 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 575 CTLTYPE_INT, "memlock_range", 576 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 577 "Locking Option is available on this " 578 "system"), 579 NULL, 1, NULL, 0, 580 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 581 sysctl_createv(clog, 0, NULL, NULL, 582 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 583 CTLTYPE_INT, "memory_protection", 584 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 585 "Protection Option is available on this " 586 "system"), 587 NULL, 1, NULL, 0, 588 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 589 sysctl_createv(clog, 0, NULL, NULL, 590 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 591 CTLTYPE_INT, "login_name_max", 592 SYSCTL_DESCR("Maximum login name length"), 593 NULL, LOGIN_NAME_MAX, NULL, 0, 594 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 595 sysctl_createv(clog, 0, NULL, NULL, 596 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 597 CTLTYPE_STRING, "defcorename", 598 SYSCTL_DESCR("Default core file name"), 599 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 600 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 601 sysctl_createv(clog, 0, NULL, NULL, 602 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 603 CTLTYPE_INT, "logsigexit", 604 SYSCTL_DESCR("Log process exit when caused by signals"), 605 NULL, 0, &kern_logsigexit, 0, 606 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 607 sysctl_createv(clog, 0, NULL, NULL, 608 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 609 CTLTYPE_INT, "fscale", 610 SYSCTL_DESCR("Kernel fixed-point scale factor"), 611 NULL, FSCALE, NULL, 0, 612 CTL_KERN, KERN_FSCALE, CTL_EOL); 613 sysctl_createv(clog, 0, NULL, NULL, 614 CTLFLAG_PERMANENT, 615 CTLTYPE_INT, "ccpu", 616 SYSCTL_DESCR("Scheduler exponential decay value"), 617 NULL, 0, &ccpu, 0, 618 CTL_KERN, KERN_CCPU, CTL_EOL); 619 sysctl_createv(clog, 0, NULL, NULL, 620 CTLFLAG_PERMANENT, 621 CTLTYPE_STRUCT, "cp_time", 622 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 623 sysctl_kern_cptime, 0, NULL, 0, 624 CTL_KERN, KERN_CP_TIME, CTL_EOL); 625 sysctl_createv(clog, 0, NULL, NULL, 626 CTLFLAG_PERMANENT, 627 CTLTYPE_INT, "msgbuf", 628 SYSCTL_DESCR("Kernel message buffer"), 629 sysctl_msgbuf, 0, NULL, 0, 630 CTL_KERN, KERN_MSGBUF, CTL_EOL); 631 sysctl_createv(clog, 0, NULL, NULL, 632 CTLFLAG_PERMANENT, 633 CTLTYPE_STRUCT, "consdev", 634 SYSCTL_DESCR("Console device"), 635 sysctl_consdev, 0, NULL, sizeof(dev_t), 636 CTL_KERN, KERN_CONSDEV, CTL_EOL); 637 #if NPTY > 0 638 sysctl_createv(clog, 0, NULL, NULL, 639 CTLFLAG_PERMANENT, 640 CTLTYPE_INT, "maxptys", 641 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 642 sysctl_kern_maxptys, 0, NULL, 0, 643 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 644 #endif /* NPTY > 0 */ 645 sysctl_createv(clog, 0, NULL, NULL, 646 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 647 CTLTYPE_INT, "maxphys", 648 SYSCTL_DESCR("Maximum raw I/O transfer size"), 649 NULL, MAXPHYS, NULL, 0, 650 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 651 sysctl_createv(clog, 0, NULL, NULL, 652 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 653 CTLTYPE_INT, "sbmax", 654 SYSCTL_DESCR("Maximum socket buffer size"), 655 sysctl_kern_sbmax, 0, NULL, 0, 656 CTL_KERN, KERN_SBMAX, CTL_EOL); 657 sysctl_createv(clog, 0, NULL, NULL, 658 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 659 CTLTYPE_INT, "monotonic_clock", 660 SYSCTL_DESCR("Implementation version of the POSIX " 661 "1003.1b Monotonic Clock Option"), 662 /* XXX _POSIX_VERSION */ 663 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 664 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 665 sysctl_createv(clog, 0, NULL, NULL, 666 CTLFLAG_PERMANENT, 667 CTLTYPE_INT, "urandom", 668 SYSCTL_DESCR("Random integer value"), 669 sysctl_kern_urnd, 0, NULL, 0, 670 CTL_KERN, KERN_URND, CTL_EOL); 671 sysctl_createv(clog, 0, NULL, NULL, 672 CTLFLAG_PERMANENT, 673 CTLTYPE_INT, "arandom", 674 SYSCTL_DESCR("n bytes of random data"), 675 sysctl_kern_arnd, 0, NULL, 0, 676 CTL_KERN, KERN_ARND, CTL_EOL); 677 sysctl_createv(clog, 0, NULL, NULL, 678 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 679 CTLTYPE_INT, "labelsector", 680 SYSCTL_DESCR("Sector number containing the disklabel"), 681 NULL, LABELSECTOR, NULL, 0, 682 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 683 sysctl_createv(clog, 0, NULL, NULL, 684 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 685 CTLTYPE_INT, "labeloffset", 686 SYSCTL_DESCR("Offset of the disklabel within the " 687 "sector"), 688 NULL, LABELOFFSET, NULL, 0, 689 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 690 sysctl_createv(clog, 0, NULL, NULL, 691 CTLFLAG_PERMANENT, 692 CTLTYPE_NODE, "lwp", 693 SYSCTL_DESCR("System-wide LWP information"), 694 sysctl_kern_lwp, 0, NULL, 0, 695 CTL_KERN, KERN_LWP, CTL_EOL); 696 sysctl_createv(clog, 0, NULL, NULL, 697 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 698 CTLTYPE_INT, "forkfsleep", 699 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 700 "to process limits"), 701 sysctl_kern_forkfsleep, 0, NULL, 0, 702 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 703 sysctl_createv(clog, 0, NULL, NULL, 704 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 705 CTLTYPE_INT, "posix_threads", 706 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 707 "Threads option to which the system " 708 "attempts to conform"), 709 /* XXX _POSIX_VERSION */ 710 NULL, _POSIX_THREADS, NULL, 0, 711 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 712 sysctl_createv(clog, 0, NULL, NULL, 713 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 714 CTLTYPE_INT, "posix_semaphores", 715 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 716 "Semaphores option to which the system " 717 "attempts to conform"), NULL, 718 #ifdef P1003_1B_SEMAPHORE 719 200112, 720 #else /* P1003_1B_SEMAPHORE */ 721 0, 722 #endif /* P1003_1B_SEMAPHORE */ 723 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 724 sysctl_createv(clog, 0, NULL, NULL, 725 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 726 CTLTYPE_INT, "posix_barriers", 727 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 728 "Barriers option to which the system " 729 "attempts to conform"), 730 /* XXX _POSIX_VERSION */ 731 NULL, _POSIX_BARRIERS, NULL, 0, 732 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 733 sysctl_createv(clog, 0, NULL, NULL, 734 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 735 CTLTYPE_INT, "posix_timers", 736 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 737 "Timers option to which the system " 738 "attempts to conform"), 739 /* XXX _POSIX_VERSION */ 740 NULL, _POSIX_TIMERS, NULL, 0, 741 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 742 sysctl_createv(clog, 0, NULL, NULL, 743 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 744 CTLTYPE_INT, "posix_spin_locks", 745 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 746 "Locks option to which the system attempts " 747 "to conform"), 748 /* XXX _POSIX_VERSION */ 749 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 750 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 751 sysctl_createv(clog, 0, NULL, NULL, 752 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 753 CTLTYPE_INT, "posix_reader_writer_locks", 754 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 755 "Read-Write Locks option to which the " 756 "system attempts to conform"), 757 /* XXX _POSIX_VERSION */ 758 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 759 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 760 sysctl_createv(clog, 0, NULL, NULL, 761 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 762 CTLTYPE_INT, "dump_on_panic", 763 SYSCTL_DESCR("Perform a crash dump on system panic"), 764 NULL, 0, &dumponpanic, 0, 765 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 766 #ifdef DIAGNOSTIC 767 sysctl_createv(clog, 0, NULL, NULL, 768 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 769 CTLTYPE_INT, "panic_now", 770 SYSCTL_DESCR("Trigger a panic"), 771 sysctl_kern_trigger_panic, 0, NULL, 0, 772 CTL_KERN, CTL_CREATE, CTL_EOL); 773 #endif 774 sysctl_createv(clog, 0, NULL, NULL, 775 CTLFLAG_PERMANENT, 776 CTLTYPE_INT, "root_partition", 777 SYSCTL_DESCR("Root partition on the root device"), 778 sysctl_kern_root_partition, 0, NULL, 0, 779 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 780 sysctl_createv(clog, 0, NULL, NULL, 781 CTLFLAG_PERMANENT, 782 CTLTYPE_STRUCT, "drivers", 783 SYSCTL_DESCR("List of all drivers with block and " 784 "character device numbers"), 785 sysctl_kern_drivers, 0, NULL, 0, 786 CTL_KERN, KERN_DRIVERS, CTL_EOL); 787 sysctl_createv(clog, 0, NULL, NULL, 788 CTLFLAG_PERMANENT, 789 CTLTYPE_STRUCT, "file2", 790 SYSCTL_DESCR("System open file table"), 791 sysctl_kern_file2, 0, NULL, 0, 792 CTL_KERN, KERN_FILE2, CTL_EOL); 793 sysctl_createv(clog, 0, NULL, NULL, 794 CTLFLAG_PERMANENT, 795 CTLTYPE_STRUCT, "cp_id", 796 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 797 sysctl_kern_cpid, 0, NULL, 0, 798 CTL_KERN, KERN_CP_ID, CTL_EOL); 799 sysctl_createv(clog, 0, NULL, &rnode, 800 CTLFLAG_PERMANENT, 801 CTLTYPE_NODE, "coredump", 802 SYSCTL_DESCR("Coredump settings."), 803 NULL, 0, NULL, 0, 804 CTL_KERN, CTL_CREATE, CTL_EOL); 805 sysctl_createv(clog, 0, &rnode, &rnode, 806 CTLFLAG_PERMANENT, 807 CTLTYPE_NODE, "setid", 808 SYSCTL_DESCR("Set-id processes' coredump settings."), 809 NULL, 0, NULL, 0, 810 CTL_CREATE, CTL_EOL); 811 sysctl_createv(clog, 0, &rnode, NULL, 812 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 813 CTLTYPE_INT, "dump", 814 SYSCTL_DESCR("Allow set-id processes to dump core."), 815 sysctl_security_setidcore, 0, &security_setidcore_dump, 816 sizeof(security_setidcore_dump), 817 CTL_CREATE, CTL_EOL); 818 sysctl_createv(clog, 0, &rnode, NULL, 819 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 820 CTLTYPE_STRING, "path", 821 SYSCTL_DESCR("Path pattern for set-id coredumps."), 822 sysctl_security_setidcorename, 0, 823 &security_setidcore_path, 824 sizeof(security_setidcore_path), 825 CTL_CREATE, CTL_EOL); 826 sysctl_createv(clog, 0, &rnode, NULL, 827 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 828 CTLTYPE_INT, "owner", 829 SYSCTL_DESCR("Owner id for set-id processes' cores."), 830 sysctl_security_setidcore, 0, &security_setidcore_owner, 831 0, 832 CTL_CREATE, CTL_EOL); 833 sysctl_createv(clog, 0, &rnode, NULL, 834 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 835 CTLTYPE_INT, "group", 836 SYSCTL_DESCR("Group id for set-id processes' cores."), 837 sysctl_security_setidcore, 0, &security_setidcore_group, 838 0, 839 CTL_CREATE, CTL_EOL); 840 sysctl_createv(clog, 0, &rnode, NULL, 841 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 842 CTLTYPE_INT, "mode", 843 SYSCTL_DESCR("Mode for set-id processes' cores."), 844 sysctl_security_setidcore, 0, &security_setidcore_mode, 845 0, 846 CTL_CREATE, CTL_EOL); 847 sysctl_createv(clog, 0, NULL, NULL, 848 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 849 CTLTYPE_INT, "no_sa_support", 850 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"), 851 NULL, 1, NULL, 0, 852 CTL_KERN, CTL_CREATE, CTL_EOL); 853 } 854 855 SYSCTL_SETUP(sysctl_kern_proc_setup, 856 "sysctl kern.proc/proc2/proc_args subtree setup") 857 { 858 859 sysctl_createv(clog, 0, NULL, NULL, 860 CTLFLAG_PERMANENT, 861 CTLTYPE_NODE, "kern", NULL, 862 NULL, 0, NULL, 0, 863 CTL_KERN, CTL_EOL); 864 865 sysctl_createv(clog, 0, NULL, NULL, 866 CTLFLAG_PERMANENT, 867 CTLTYPE_NODE, "proc", 868 SYSCTL_DESCR("System-wide process information"), 869 sysctl_doeproc, 0, NULL, 0, 870 CTL_KERN, KERN_PROC, CTL_EOL); 871 sysctl_createv(clog, 0, NULL, NULL, 872 CTLFLAG_PERMANENT, 873 CTLTYPE_NODE, "proc2", 874 SYSCTL_DESCR("Machine-independent process information"), 875 sysctl_doeproc, 0, NULL, 0, 876 CTL_KERN, KERN_PROC2, CTL_EOL); 877 sysctl_createv(clog, 0, NULL, NULL, 878 CTLFLAG_PERMANENT, 879 CTLTYPE_NODE, "proc_args", 880 SYSCTL_DESCR("Process argument information"), 881 sysctl_kern_proc_args, 0, NULL, 0, 882 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 883 884 /* 885 "nodes" under these: 886 887 KERN_PROC_ALL 888 KERN_PROC_PID pid 889 KERN_PROC_PGRP pgrp 890 KERN_PROC_SESSION sess 891 KERN_PROC_TTY tty 892 KERN_PROC_UID uid 893 KERN_PROC_RUID uid 894 KERN_PROC_GID gid 895 KERN_PROC_RGID gid 896 897 all in all, probably not worth the effort... 898 */ 899 } 900 901 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 902 { 903 u_int u; 904 u_quad_t q; 905 906 sysctl_createv(clog, 0, NULL, NULL, 907 CTLFLAG_PERMANENT, 908 CTLTYPE_NODE, "hw", NULL, 909 NULL, 0, NULL, 0, 910 CTL_HW, CTL_EOL); 911 912 sysctl_createv(clog, 0, NULL, NULL, 913 CTLFLAG_PERMANENT, 914 CTLTYPE_STRING, "machine", 915 SYSCTL_DESCR("Machine class"), 916 NULL, 0, machine, 0, 917 CTL_HW, HW_MACHINE, CTL_EOL); 918 sysctl_createv(clog, 0, NULL, NULL, 919 CTLFLAG_PERMANENT, 920 CTLTYPE_STRING, "model", 921 SYSCTL_DESCR("Machine model"), 922 NULL, 0, cpu_model, 0, 923 CTL_HW, HW_MODEL, CTL_EOL); 924 sysctl_createv(clog, 0, NULL, NULL, 925 CTLFLAG_PERMANENT, 926 CTLTYPE_INT, "ncpu", 927 SYSCTL_DESCR("Number of active CPUs"), 928 sysctl_hw_ncpu, 0, NULL, 0, 929 CTL_HW, HW_NCPU, CTL_EOL); 930 sysctl_createv(clog, 0, NULL, NULL, 931 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 932 CTLTYPE_INT, "byteorder", 933 SYSCTL_DESCR("System byte order"), 934 NULL, BYTE_ORDER, NULL, 0, 935 CTL_HW, HW_BYTEORDER, CTL_EOL); 936 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 937 UINT_MAX : physmem * PAGE_SIZE; 938 sysctl_createv(clog, 0, NULL, NULL, 939 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 940 CTLTYPE_INT, "physmem", 941 SYSCTL_DESCR("Bytes of physical memory"), 942 NULL, u, NULL, 0, 943 CTL_HW, HW_PHYSMEM, CTL_EOL); 944 sysctl_createv(clog, 0, NULL, NULL, 945 CTLFLAG_PERMANENT, 946 CTLTYPE_INT, "usermem", 947 SYSCTL_DESCR("Bytes of non-kernel memory"), 948 sysctl_hw_usermem, 0, NULL, 0, 949 CTL_HW, HW_USERMEM, CTL_EOL); 950 sysctl_createv(clog, 0, NULL, NULL, 951 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 952 CTLTYPE_INT, "pagesize", 953 SYSCTL_DESCR("Software page size"), 954 NULL, PAGE_SIZE, NULL, 0, 955 CTL_HW, HW_PAGESIZE, CTL_EOL); 956 sysctl_createv(clog, 0, NULL, NULL, 957 CTLFLAG_PERMANENT, 958 CTLTYPE_STRING, "machine_arch", 959 SYSCTL_DESCR("Machine CPU class"), 960 NULL, 0, machine_arch, 0, 961 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 962 sysctl_createv(clog, 0, NULL, NULL, 963 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 964 CTLTYPE_INT, "alignbytes", 965 SYSCTL_DESCR("Alignment constraint for all possible " 966 "data types"), 967 NULL, ALIGNBYTES, NULL, 0, 968 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 969 sysctl_createv(clog, 0, NULL, NULL, 970 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 971 CTLTYPE_STRING, "cnmagic", 972 SYSCTL_DESCR("Console magic key sequence"), 973 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 974 CTL_HW, HW_CNMAGIC, CTL_EOL); 975 q = (u_quad_t)physmem * PAGE_SIZE; 976 sysctl_createv(clog, 0, NULL, NULL, 977 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 978 CTLTYPE_QUAD, "physmem64", 979 SYSCTL_DESCR("Bytes of physical memory"), 980 NULL, q, NULL, 0, 981 CTL_HW, HW_PHYSMEM64, CTL_EOL); 982 sysctl_createv(clog, 0, NULL, NULL, 983 CTLFLAG_PERMANENT, 984 CTLTYPE_QUAD, "usermem64", 985 SYSCTL_DESCR("Bytes of non-kernel memory"), 986 sysctl_hw_usermem, 0, NULL, 0, 987 CTL_HW, HW_USERMEM64, CTL_EOL); 988 } 989 990 #ifdef DEBUG 991 /* 992 * Debugging related system variables. 993 */ 994 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 995 struct ctldebug debug5, debug6, debug7, debug8, debug9; 996 struct ctldebug debug10, debug11, debug12, debug13, debug14; 997 struct ctldebug debug15, debug16, debug17, debug18, debug19; 998 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 999 &debug0, &debug1, &debug2, &debug3, &debug4, 1000 &debug5, &debug6, &debug7, &debug8, &debug9, 1001 &debug10, &debug11, &debug12, &debug13, &debug14, 1002 &debug15, &debug16, &debug17, &debug18, &debug19, 1003 }; 1004 1005 /* 1006 * this setup routine is a replacement for debug_sysctl() 1007 * 1008 * note that it creates several nodes per defined debug variable 1009 */ 1010 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1011 { 1012 struct ctldebug *cdp; 1013 char nodename[20]; 1014 int i; 1015 1016 /* 1017 * two ways here: 1018 * 1019 * the "old" way (debug.name -> value) which was emulated by 1020 * the sysctl(8) binary 1021 * 1022 * the new way, which the sysctl(8) binary was actually using 1023 1024 node debug 1025 node debug.0 1026 string debug.0.name 1027 int debug.0.value 1028 int debug.name 1029 1030 */ 1031 1032 sysctl_createv(clog, 0, NULL, NULL, 1033 CTLFLAG_PERMANENT, 1034 CTLTYPE_NODE, "debug", NULL, 1035 NULL, 0, NULL, 0, 1036 CTL_DEBUG, CTL_EOL); 1037 1038 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1039 cdp = debugvars[i]; 1040 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1041 continue; 1042 1043 snprintf(nodename, sizeof(nodename), "debug%d", i); 1044 sysctl_createv(clog, 0, NULL, NULL, 1045 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1046 CTLTYPE_NODE, nodename, NULL, 1047 NULL, 0, NULL, 0, 1048 CTL_DEBUG, i, CTL_EOL); 1049 sysctl_createv(clog, 0, NULL, NULL, 1050 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1051 CTLTYPE_STRING, "name", NULL, 1052 /*XXXUNCONST*/ 1053 NULL, 0, __UNCONST(cdp->debugname), 0, 1054 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1055 sysctl_createv(clog, 0, NULL, NULL, 1056 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1057 CTLTYPE_INT, "value", NULL, 1058 NULL, 0, cdp->debugvar, 0, 1059 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1060 sysctl_createv(clog, 0, NULL, NULL, 1061 CTLFLAG_PERMANENT, 1062 CTLTYPE_INT, cdp->debugname, NULL, 1063 NULL, 0, cdp->debugvar, 0, 1064 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1065 } 1066 } 1067 #endif /* DEBUG */ 1068 1069 /* 1070 * ******************************************************************** 1071 * section 2: private node-specific helper routines. 1072 * ******************************************************************** 1073 */ 1074 1075 #ifdef DIAGNOSTIC 1076 static int 1077 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1078 { 1079 int newtrig, error; 1080 struct sysctlnode node; 1081 1082 newtrig = 0; 1083 node = *rnode; 1084 node.sysctl_data = &newtrig; 1085 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1086 if (error || newp == NULL) 1087 return (error); 1088 1089 if (newtrig != 0) 1090 panic("Panic triggered"); 1091 1092 return (error); 1093 } 1094 #endif 1095 1096 /* 1097 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1098 * new value is lower than desiredvnodes and then calls reinit 1099 * routines that needs to adjust to the new value. 1100 */ 1101 static int 1102 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1103 { 1104 int error, new_vnodes, old_vnodes; 1105 struct sysctlnode node; 1106 1107 new_vnodes = desiredvnodes; 1108 node = *rnode; 1109 node.sysctl_data = &new_vnodes; 1110 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1111 if (error || newp == NULL) 1112 return (error); 1113 1114 old_vnodes = desiredvnodes; 1115 desiredvnodes = new_vnodes; 1116 if (new_vnodes < old_vnodes) { 1117 error = vfs_drainvnodes(new_vnodes, l); 1118 if (error) { 1119 desiredvnodes = old_vnodes; 1120 return (error); 1121 } 1122 } 1123 vfs_reinit(); 1124 nchreinit(); 1125 1126 return (0); 1127 } 1128 1129 /* 1130 * sysctl helper routine for rtc_offset - set time after changes 1131 */ 1132 static int 1133 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1134 { 1135 struct timespec ts, delta; 1136 int error, new_rtc_offset; 1137 struct sysctlnode node; 1138 1139 new_rtc_offset = rtc_offset; 1140 node = *rnode; 1141 node.sysctl_data = &new_rtc_offset; 1142 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1143 if (error || newp == NULL) 1144 return (error); 1145 1146 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1147 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1148 (void *)(u_long)new_rtc_offset, NULL, NULL)) 1149 return (EPERM); 1150 if (rtc_offset == new_rtc_offset) 1151 return (0); 1152 1153 /* if we change the offset, adjust the time */ 1154 nanotime(&ts); 1155 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1156 delta.tv_nsec = 0; 1157 timespecadd(&ts, &delta, &ts); 1158 rtc_offset = new_rtc_offset; 1159 settime(l->l_proc, &ts); 1160 1161 return (0); 1162 } 1163 1164 /* 1165 * sysctl helper routine for kern.maxproc. ensures that the new 1166 * values are not too low or too high. 1167 */ 1168 static int 1169 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1170 { 1171 int error, nmaxproc; 1172 struct sysctlnode node; 1173 1174 nmaxproc = maxproc; 1175 node = *rnode; 1176 node.sysctl_data = &nmaxproc; 1177 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1178 if (error || newp == NULL) 1179 return (error); 1180 1181 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1182 return (EINVAL); 1183 #ifdef __HAVE_CPU_MAXPROC 1184 if (nmaxproc > cpu_maxproc()) 1185 return (EINVAL); 1186 #endif 1187 maxproc = nmaxproc; 1188 1189 return (0); 1190 } 1191 1192 /* 1193 * sysctl helper function for kern.hostid. the hostid is a long, but 1194 * we export it as an int, so we need to give it a little help. 1195 */ 1196 static int 1197 sysctl_kern_hostid(SYSCTLFN_ARGS) 1198 { 1199 int error, inthostid; 1200 struct sysctlnode node; 1201 1202 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1203 node = *rnode; 1204 node.sysctl_data = &inthostid; 1205 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1206 if (error || newp == NULL) 1207 return (error); 1208 1209 hostid = (unsigned)inthostid; 1210 1211 return (0); 1212 } 1213 1214 /* 1215 * sysctl helper function for kern.hostname and kern.domainnname. 1216 * resets the relevant recorded length when the underlying name is 1217 * changed. 1218 */ 1219 static int 1220 sysctl_setlen(SYSCTLFN_ARGS) 1221 { 1222 int error; 1223 1224 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1225 if (error || newp == NULL) 1226 return (error); 1227 1228 switch (rnode->sysctl_num) { 1229 case KERN_HOSTNAME: 1230 hostnamelen = strlen((const char*)rnode->sysctl_data); 1231 break; 1232 case KERN_DOMAINNAME: 1233 domainnamelen = strlen((const char*)rnode->sysctl_data); 1234 break; 1235 } 1236 1237 return (0); 1238 } 1239 1240 /* 1241 * sysctl helper routine for kern.clockrate. assembles a struct on 1242 * the fly to be returned to the caller. 1243 */ 1244 static int 1245 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1246 { 1247 struct clockinfo clkinfo; 1248 struct sysctlnode node; 1249 1250 clkinfo.tick = tick; 1251 clkinfo.tickadj = tickadj; 1252 clkinfo.hz = hz; 1253 clkinfo.profhz = profhz; 1254 clkinfo.stathz = stathz ? stathz : hz; 1255 1256 node = *rnode; 1257 node.sysctl_data = &clkinfo; 1258 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1259 } 1260 1261 1262 /* 1263 * sysctl helper routine for kern.file pseudo-subtree. 1264 */ 1265 static int 1266 sysctl_kern_file(SYSCTLFN_ARGS) 1267 { 1268 int error; 1269 size_t buflen; 1270 struct file *fp; 1271 char *start, *where; 1272 1273 start = where = oldp; 1274 buflen = *oldlenp; 1275 if (where == NULL) { 1276 /* 1277 * overestimate by 10 files 1278 */ 1279 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1280 return (0); 1281 } 1282 1283 /* 1284 * first dcopyout filehead 1285 */ 1286 if (buflen < sizeof(filehead)) { 1287 *oldlenp = 0; 1288 return (0); 1289 } 1290 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1291 if (error) 1292 return (error); 1293 buflen -= sizeof(filehead); 1294 where += sizeof(filehead); 1295 1296 /* 1297 * followed by an array of file structures 1298 */ 1299 LIST_FOREACH(fp, &filehead, f_list) { 1300 if (kauth_authorize_generic(l->l_cred, 1301 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1302 continue; 1303 if (buflen < sizeof(struct file)) { 1304 *oldlenp = where - start; 1305 return (ENOMEM); 1306 } 1307 error = dcopyout(l, fp, where, sizeof(struct file)); 1308 if (error) 1309 return (error); 1310 buflen -= sizeof(struct file); 1311 where += sizeof(struct file); 1312 } 1313 *oldlenp = where - start; 1314 return (0); 1315 } 1316 1317 /* 1318 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1319 * former it merely checks the message buffer is set up. for the latter, 1320 * it also copies out the data if necessary. 1321 */ 1322 static int 1323 sysctl_msgbuf(SYSCTLFN_ARGS) 1324 { 1325 char *where = oldp; 1326 size_t len, maxlen; 1327 long beg, end; 1328 int error; 1329 1330 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1331 msgbufenabled = 0; 1332 return (ENXIO); 1333 } 1334 1335 switch (rnode->sysctl_num) { 1336 case KERN_MSGBUFSIZE: { 1337 struct sysctlnode node = *rnode; 1338 int msg_bufs = (int)msgbufp->msg_bufs; 1339 node.sysctl_data = &msg_bufs; 1340 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1341 } 1342 case KERN_MSGBUF: 1343 break; 1344 default: 1345 return (EOPNOTSUPP); 1346 } 1347 1348 if (newp != NULL) 1349 return (EPERM); 1350 1351 if (oldp == NULL) { 1352 /* always return full buffer size */ 1353 *oldlenp = msgbufp->msg_bufs; 1354 return (0); 1355 } 1356 1357 error = 0; 1358 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1359 1360 /* 1361 * First, copy from the write pointer to the end of 1362 * message buffer. 1363 */ 1364 beg = msgbufp->msg_bufx; 1365 end = msgbufp->msg_bufs; 1366 while (maxlen > 0) { 1367 len = MIN(end - beg, maxlen); 1368 if (len == 0) 1369 break; 1370 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1371 if (error) 1372 break; 1373 where += len; 1374 maxlen -= len; 1375 1376 /* 1377 * ... then, copy from the beginning of message buffer to 1378 * the write pointer. 1379 */ 1380 beg = 0; 1381 end = msgbufp->msg_bufx; 1382 } 1383 1384 return (error); 1385 } 1386 1387 /* 1388 * sysctl helper routine for kern.defcorename. in the case of a new 1389 * string being assigned, check that it's not a zero-length string. 1390 * (XXX the check in -current doesn't work, but do we really care?) 1391 */ 1392 static int 1393 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1394 { 1395 int error; 1396 char *newcorename; 1397 struct sysctlnode node; 1398 1399 newcorename = PNBUF_GET(); 1400 node = *rnode; 1401 node.sysctl_data = &newcorename[0]; 1402 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1403 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1404 if (error || newp == NULL) { 1405 goto done; 1406 } 1407 1408 /* 1409 * when sysctl_lookup() deals with a string, it's guaranteed 1410 * to come back nul terminated. so there. :) 1411 */ 1412 if (strlen(newcorename) == 0) { 1413 error = EINVAL; 1414 } else { 1415 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1416 error = 0; 1417 } 1418 done: 1419 PNBUF_PUT(newcorename); 1420 return error; 1421 } 1422 1423 /* 1424 * sysctl helper routine for kern.cp_time node. adds up cpu time 1425 * across all cpus. 1426 */ 1427 static int 1428 sysctl_kern_cptime(SYSCTLFN_ARGS) 1429 { 1430 struct sysctlnode node = *rnode; 1431 1432 #ifndef MULTIPROCESSOR 1433 1434 if (namelen == 1) { 1435 if (name[0] != 0) 1436 return (ENOENT); 1437 /* 1438 * you're allowed to ask for the zero'th processor 1439 */ 1440 name++; 1441 namelen--; 1442 } 1443 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1444 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1445 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1446 1447 #else /* MULTIPROCESSOR */ 1448 1449 uint64_t *cp_time = NULL; 1450 int error, n = ncpu, i; 1451 struct cpu_info *ci; 1452 CPU_INFO_ITERATOR cii; 1453 1454 /* 1455 * if you specifically pass a buffer that is the size of the 1456 * sum, or if you are probing for the size, you get the "sum" 1457 * of cp_time (and the size thereof) across all processors. 1458 * 1459 * alternately, you can pass an additional mib number and get 1460 * cp_time for that particular processor. 1461 */ 1462 switch (namelen) { 1463 case 0: 1464 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1465 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1466 n = -1; /* SUM */ 1467 } 1468 else { 1469 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1470 n = -2; /* ALL */ 1471 } 1472 break; 1473 case 1: 1474 if (name[0] < 0 || name[0] >= n) 1475 return (ENOENT); /* ENOSUCHPROCESSOR */ 1476 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1477 n = name[0]; 1478 /* 1479 * adjust these so that sysctl_lookup() will be happy 1480 */ 1481 name++; 1482 namelen--; 1483 break; 1484 default: 1485 return (EINVAL); 1486 } 1487 1488 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1489 if (cp_time == NULL) 1490 return (ENOMEM); 1491 node.sysctl_data = cp_time; 1492 memset(cp_time, 0, node.sysctl_size); 1493 1494 for (CPU_INFO_FOREACH(cii, ci)) { 1495 if (n <= 0) 1496 for (i = 0; i < CPUSTATES; i++) 1497 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1498 /* 1499 * if a specific processor was requested and we just 1500 * did it, we're done here 1501 */ 1502 if (n == 0) 1503 break; 1504 /* 1505 * if doing "all", skip to next cp_time set for next processor 1506 */ 1507 if (n == -2) 1508 cp_time += CPUSTATES; 1509 /* 1510 * if we're doing a specific processor, we're one 1511 * processor closer 1512 */ 1513 if (n > 0) 1514 n--; 1515 } 1516 1517 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1518 free(node.sysctl_data, M_TEMP); 1519 return (error); 1520 1521 #endif /* MULTIPROCESSOR */ 1522 } 1523 1524 #if NPTY > 0 1525 /* 1526 * sysctl helper routine for kern.maxptys. ensures that any new value 1527 * is acceptable to the pty subsystem. 1528 */ 1529 static int 1530 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1531 { 1532 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1533 int error, xmax; 1534 struct sysctlnode node; 1535 1536 /* get current value of maxptys */ 1537 xmax = pty_maxptys(0, 0); 1538 1539 node = *rnode; 1540 node.sysctl_data = &xmax; 1541 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1542 if (error || newp == NULL) 1543 return (error); 1544 1545 if (xmax != pty_maxptys(xmax, 1)) 1546 return (EINVAL); 1547 1548 return (0); 1549 } 1550 #endif /* NPTY > 0 */ 1551 1552 /* 1553 * sysctl helper routine for kern.sbmax. basically just ensures that 1554 * any new value is not too small. 1555 */ 1556 static int 1557 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1558 { 1559 int error, new_sbmax; 1560 struct sysctlnode node; 1561 1562 new_sbmax = sb_max; 1563 node = *rnode; 1564 node.sysctl_data = &new_sbmax; 1565 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1566 if (error || newp == NULL) 1567 return (error); 1568 1569 error = sb_max_set(new_sbmax); 1570 1571 return (error); 1572 } 1573 1574 /* 1575 * sysctl helper routine for kern.urandom node. picks a random number 1576 * for you. 1577 */ 1578 static int 1579 sysctl_kern_urnd(SYSCTLFN_ARGS) 1580 { 1581 #if NRND > 0 1582 int v; 1583 1584 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1585 struct sysctlnode node = *rnode; 1586 node.sysctl_data = &v; 1587 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1588 } 1589 else 1590 return (EIO); /*XXX*/ 1591 #else 1592 return (EOPNOTSUPP); 1593 #endif 1594 } 1595 1596 /* 1597 * sysctl helper routine for kern.arandom node. picks a random number 1598 * for you. 1599 */ 1600 static int 1601 sysctl_kern_arnd(SYSCTLFN_ARGS) 1602 { 1603 #if NRND > 0 1604 int error; 1605 void *v; 1606 struct sysctlnode node = *rnode; 1607 1608 if (*oldlenp == 0) 1609 return 0; 1610 if (*oldlenp > 8192) 1611 return E2BIG; 1612 1613 v = malloc(*oldlenp, M_TEMP, M_WAITOK); 1614 1615 arc4randbytes(v, *oldlenp); 1616 node.sysctl_data = v; 1617 node.sysctl_size = *oldlenp; 1618 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1619 free(v, M_TEMP); 1620 return error; 1621 #else 1622 return (EOPNOTSUPP); 1623 #endif 1624 } 1625 /* 1626 * sysctl helper routine to do kern.lwp.* work. 1627 */ 1628 static int 1629 sysctl_kern_lwp(SYSCTLFN_ARGS) 1630 { 1631 struct kinfo_lwp klwp; 1632 struct proc *p; 1633 struct lwp *l2; 1634 char *where, *dp; 1635 int pid, elem_size, elem_count; 1636 int buflen, needed, error; 1637 1638 if (namelen == 1 && name[0] == CTL_QUERY) 1639 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1640 1641 dp = where = oldp; 1642 buflen = where != NULL ? *oldlenp : 0; 1643 error = needed = 0; 1644 1645 if (newp != NULL || namelen != 3) 1646 return (EINVAL); 1647 pid = name[0]; 1648 elem_size = name[1]; 1649 elem_count = name[2]; 1650 1651 mutex_enter(&proclist_lock); 1652 if (pid == -1) { 1653 LIST_FOREACH(l2, &alllwp, l_list) { 1654 if (buflen >= elem_size && elem_count > 0) { 1655 lwp_lock(l2); 1656 fill_lwp(l2, &klwp); 1657 lwp_unlock(l2); 1658 1659 /* 1660 * Copy out elem_size, but not larger than 1661 * the size of a struct kinfo_proc2. 1662 */ 1663 error = dcopyout(l, &klwp, dp, 1664 min(sizeof(klwp), elem_size)); 1665 if (error) 1666 goto cleanup; 1667 dp += elem_size; 1668 buflen -= elem_size; 1669 elem_count--; 1670 } 1671 needed += elem_size; 1672 } 1673 } else { 1674 p = p_find(pid, PFIND_LOCKED); 1675 if (p == NULL) { 1676 mutex_exit(&proclist_lock); 1677 return (ESRCH); 1678 } 1679 mutex_enter(&p->p_smutex); 1680 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1681 if (buflen >= elem_size && elem_count > 0) { 1682 struct lwp *l3; 1683 1684 lwp_lock(l2); 1685 fill_lwp(l2, &klwp); 1686 lwp_unlock(l2); 1687 mutex_exit(&p->p_smutex); 1688 /* 1689 * Copy out elem_size, but not larger than 1690 * the size of a struct kinfo_proc2. 1691 */ 1692 error = dcopyout(l, &klwp, dp, 1693 min(sizeof(klwp), elem_size)); 1694 if (error) { 1695 goto cleanup; 1696 } 1697 mutex_enter(&p->p_smutex); 1698 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1699 if (l2 == l3) 1700 break; 1701 } 1702 if (l2 == NULL) { 1703 mutex_exit(&p->p_smutex); 1704 error = EAGAIN; 1705 goto cleanup; 1706 } 1707 dp += elem_size; 1708 buflen -= elem_size; 1709 elem_count--; 1710 } 1711 needed += elem_size; 1712 } 1713 mutex_exit(&p->p_smutex); 1714 } 1715 mutex_exit(&proclist_lock); 1716 1717 if (where != NULL) { 1718 *oldlenp = dp - where; 1719 if (needed > *oldlenp) 1720 return (ENOMEM); 1721 } else { 1722 needed += KERN_LWPSLOP; 1723 *oldlenp = needed; 1724 } 1725 return (0); 1726 cleanup: 1727 mutex_exit(&proclist_lock); 1728 return (error); 1729 } 1730 1731 /* 1732 * sysctl helper routine for kern.forkfsleep node. ensures that the 1733 * given value is not too large or two small, and is at least one 1734 * timer tick if not zero. 1735 */ 1736 static int 1737 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1738 { 1739 /* userland sees value in ms, internally is in ticks */ 1740 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1741 int error, timo, lsleep; 1742 struct sysctlnode node; 1743 1744 lsleep = forkfsleep * 1000 / hz; 1745 node = *rnode; 1746 node.sysctl_data = &lsleep; 1747 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1748 if (error || newp == NULL) 1749 return (error); 1750 1751 /* refuse negative values, and overly 'long time' */ 1752 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1753 return (EINVAL); 1754 1755 timo = mstohz(lsleep); 1756 1757 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1758 if (lsleep != 0 && timo == 0) 1759 forkfsleep = 1; 1760 else 1761 forkfsleep = timo; 1762 1763 return (0); 1764 } 1765 1766 /* 1767 * sysctl helper routine for kern.root_partition 1768 */ 1769 static int 1770 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1771 { 1772 int rootpart = DISKPART(rootdev); 1773 struct sysctlnode node = *rnode; 1774 1775 node.sysctl_data = &rootpart; 1776 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1777 } 1778 1779 /* 1780 * sysctl helper function for kern.drivers 1781 */ 1782 static int 1783 sysctl_kern_drivers(SYSCTLFN_ARGS) 1784 { 1785 int error; 1786 size_t buflen; 1787 struct kinfo_drivers kd; 1788 char *start, *where; 1789 const char *dname; 1790 int i; 1791 extern struct devsw_conv *devsw_conv; 1792 extern int max_devsw_convs; 1793 1794 if (newp != NULL || namelen != 0) 1795 return (EINVAL); 1796 1797 start = where = oldp; 1798 buflen = *oldlenp; 1799 if (where == NULL) { 1800 *oldlenp = max_devsw_convs * sizeof kd; 1801 return 0; 1802 } 1803 1804 /* 1805 * An array of kinfo_drivers structures 1806 */ 1807 error = 0; 1808 for (i = 0; i < max_devsw_convs; i++) { 1809 dname = devsw_conv[i].d_name; 1810 if (dname == NULL) 1811 continue; 1812 if (buflen < sizeof kd) { 1813 error = ENOMEM; 1814 break; 1815 } 1816 memset(&kd, 0, sizeof(kd)); 1817 kd.d_bmajor = devsw_conv[i].d_bmajor; 1818 kd.d_cmajor = devsw_conv[i].d_cmajor; 1819 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1820 error = dcopyout(l, &kd, where, sizeof kd); 1821 if (error != 0) 1822 break; 1823 buflen -= sizeof kd; 1824 where += sizeof kd; 1825 } 1826 *oldlenp = where - start; 1827 return error; 1828 } 1829 1830 /* 1831 * sysctl helper function for kern.file2 1832 */ 1833 static int 1834 sysctl_kern_file2(SYSCTLFN_ARGS) 1835 { 1836 struct proc *p; 1837 struct file *fp; 1838 struct filedesc *fd; 1839 struct kinfo_file kf; 1840 char *dp; 1841 u_int i, op; 1842 size_t len, needed, elem_size, out_size; 1843 int error, arg, elem_count; 1844 1845 if (namelen == 1 && name[0] == CTL_QUERY) 1846 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1847 1848 if (namelen != 4) 1849 return (EINVAL); 1850 1851 error = 0; 1852 dp = oldp; 1853 len = (oldp != NULL) ? *oldlenp : 0; 1854 op = name[0]; 1855 arg = name[1]; 1856 elem_size = name[2]; 1857 elem_count = name[3]; 1858 out_size = MIN(sizeof(kf), elem_size); 1859 needed = 0; 1860 1861 if (elem_size < 1 || elem_count < 0) 1862 return (EINVAL); 1863 1864 switch (op) { 1865 case KERN_FILE_BYFILE: 1866 /* 1867 * doesn't use arg so it must be zero 1868 */ 1869 if (arg != 0) 1870 return (EINVAL); 1871 LIST_FOREACH(fp, &filehead, f_list) { 1872 if (kauth_authorize_generic(l->l_cred, 1873 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1874 continue; 1875 if (len >= elem_size && elem_count > 0) { 1876 fill_file(&kf, fp, NULL, 0); 1877 error = dcopyout(l, &kf, dp, out_size); 1878 if (error) 1879 break; 1880 dp += elem_size; 1881 len -= elem_size; 1882 } 1883 if (elem_count > 0) { 1884 needed += elem_size; 1885 if (elem_count != INT_MAX) 1886 elem_count--; 1887 } 1888 } 1889 break; 1890 case KERN_FILE_BYPID: 1891 if (arg < -1) 1892 /* -1 means all processes */ 1893 return (EINVAL); 1894 mutex_enter(&proclist_lock); 1895 PROCLIST_FOREACH(p, &allproc) { 1896 if (p->p_stat == SIDL) 1897 /* skip embryonic processes */ 1898 continue; 1899 if (kauth_authorize_process(l->l_cred, 1900 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 1901 continue; 1902 if (arg > 0 && p->p_pid != arg) 1903 /* pick only the one we want */ 1904 /* XXX want 0 to mean "kernel files" */ 1905 continue; 1906 fd = p->p_fd; 1907 for (i = 0; i < fd->fd_nfiles; i++) { 1908 fp = fd->fd_ofiles[i]; 1909 if (fp == NULL || !FILE_IS_USABLE(fp)) 1910 continue; 1911 if (len >= elem_size && elem_count > 0) { 1912 fill_file(&kf, fd->fd_ofiles[i], 1913 p, i); 1914 error = dcopyout(l, &kf, dp, out_size); 1915 if (error) 1916 break; 1917 dp += elem_size; 1918 len -= elem_size; 1919 } 1920 if (elem_count > 0) { 1921 needed += elem_size; 1922 if (elem_count != INT_MAX) 1923 elem_count--; 1924 } 1925 } 1926 } 1927 mutex_exit(&proclist_lock); 1928 break; 1929 default: 1930 return (EINVAL); 1931 } 1932 1933 if (oldp == NULL) 1934 needed += KERN_FILESLOP * elem_size; 1935 *oldlenp = needed; 1936 1937 return (error); 1938 } 1939 1940 static void 1941 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 1942 { 1943 1944 memset(kp, 0, sizeof(*kp)); 1945 1946 kp->ki_fileaddr = PTRTOUINT64(fp); 1947 kp->ki_flag = fp->f_flag; 1948 kp->ki_iflags = fp->f_iflags; 1949 kp->ki_ftype = fp->f_type; 1950 kp->ki_count = fp->f_count; 1951 kp->ki_msgcount = fp->f_msgcount; 1952 kp->ki_usecount = fp->f_usecount; 1953 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 1954 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 1955 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 1956 kp->ki_fops = PTRTOUINT64(fp->f_ops); 1957 kp->ki_foffset = fp->f_offset; 1958 kp->ki_fdata = PTRTOUINT64(fp->f_data); 1959 1960 /* vnode information to glue this file to something */ 1961 if (fp->f_type == DTYPE_VNODE) { 1962 struct vnode *vp = (struct vnode *)fp->f_data; 1963 1964 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 1965 kp->ki_vsize = vp->v_size; 1966 kp->ki_vtype = vp->v_type; 1967 kp->ki_vtag = vp->v_tag; 1968 kp->ki_vdata = PTRTOUINT64(vp->v_data); 1969 } 1970 1971 /* process information when retrieved via KERN_FILE_BYPID */ 1972 if (p) { 1973 kp->ki_pid = p->p_pid; 1974 kp->ki_fd = i; 1975 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 1976 } 1977 } 1978 1979 static int 1980 sysctl_doeproc(SYSCTLFN_ARGS) 1981 { 1982 struct eproc *eproc; 1983 struct kinfo_proc2 *kproc2; 1984 struct kinfo_proc *dp; 1985 struct proc *p; 1986 const struct proclist_desc *pd; 1987 char *where, *dp2; 1988 int type, op, arg; 1989 u_int elem_size, elem_count; 1990 size_t buflen, needed; 1991 int error; 1992 1993 if (namelen == 1 && name[0] == CTL_QUERY) 1994 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1995 1996 dp = oldp; 1997 dp2 = where = oldp; 1998 buflen = where != NULL ? *oldlenp : 0; 1999 error = 0; 2000 needed = 0; 2001 type = rnode->sysctl_num; 2002 2003 if (type == KERN_PROC) { 2004 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2005 return (EINVAL); 2006 op = name[0]; 2007 if (op != KERN_PROC_ALL) 2008 arg = name[1]; 2009 else 2010 arg = 0; /* Quell compiler warning */ 2011 elem_size = elem_count = 0; /* Ditto */ 2012 } else { 2013 if (namelen != 4) 2014 return (EINVAL); 2015 op = name[0]; 2016 arg = name[1]; 2017 elem_size = name[2]; 2018 elem_count = name[3]; 2019 } 2020 2021 if (type == KERN_PROC) { 2022 eproc = malloc(sizeof(*eproc), M_TEMP, M_WAITOK); 2023 kproc2 = NULL; 2024 } else { 2025 eproc = NULL; 2026 kproc2 = malloc(sizeof(*kproc2), M_TEMP, M_WAITOK); 2027 } 2028 mutex_enter(&proclist_lock); 2029 2030 pd = proclists; 2031 again: 2032 PROCLIST_FOREACH(p, pd->pd_list) { 2033 /* 2034 * Skip embryonic processes. 2035 */ 2036 if (p->p_stat == SIDL) 2037 continue; 2038 2039 if (kauth_authorize_process(l->l_cred, 2040 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2041 continue; 2042 2043 /* 2044 * TODO - make more efficient (see notes below). 2045 * do by session. 2046 */ 2047 switch (op) { 2048 2049 case KERN_PROC_PID: 2050 /* could do this with just a lookup */ 2051 if (p->p_pid != (pid_t)arg) 2052 continue; 2053 break; 2054 2055 case KERN_PROC_PGRP: 2056 /* could do this by traversing pgrp */ 2057 if (p->p_pgrp->pg_id != (pid_t)arg) 2058 continue; 2059 break; 2060 2061 case KERN_PROC_SESSION: 2062 if (p->p_session->s_sid != (pid_t)arg) 2063 continue; 2064 break; 2065 2066 case KERN_PROC_TTY: 2067 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2068 if ((p->p_lflag & PL_CONTROLT) == 0 || 2069 p->p_session->s_ttyp == NULL || 2070 p->p_session->s_ttyvp != NULL) 2071 continue; 2072 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2073 p->p_session->s_ttyp == NULL) { 2074 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2075 continue; 2076 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2077 continue; 2078 break; 2079 2080 case KERN_PROC_UID: 2081 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2082 continue; 2083 break; 2084 2085 case KERN_PROC_RUID: 2086 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2087 continue; 2088 break; 2089 2090 case KERN_PROC_GID: 2091 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2092 continue; 2093 break; 2094 2095 case KERN_PROC_RGID: 2096 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2097 continue; 2098 break; 2099 2100 case KERN_PROC_ALL: 2101 /* allow everything */ 2102 break; 2103 2104 default: 2105 error = EINVAL; 2106 goto cleanup; 2107 } 2108 if (type == KERN_PROC) { 2109 if (buflen >= sizeof(struct kinfo_proc)) { 2110 fill_eproc(p, eproc); 2111 error = dcopyout(l, p, &dp->kp_proc, 2112 sizeof(struct proc)); 2113 if (error) 2114 goto cleanup; 2115 error = dcopyout(l, eproc, &dp->kp_eproc, 2116 sizeof(*eproc)); 2117 if (error) 2118 goto cleanup; 2119 dp++; 2120 buflen -= sizeof(struct kinfo_proc); 2121 } 2122 needed += sizeof(struct kinfo_proc); 2123 } else { /* KERN_PROC2 */ 2124 if (buflen >= elem_size && elem_count > 0) { 2125 fill_kproc2(p, kproc2); 2126 /* 2127 * Copy out elem_size, but not larger than 2128 * the size of a struct kinfo_proc2. 2129 */ 2130 error = dcopyout(l, kproc2, dp2, 2131 min(sizeof(*kproc2), elem_size)); 2132 if (error) 2133 goto cleanup; 2134 dp2 += elem_size; 2135 buflen -= elem_size; 2136 elem_count--; 2137 } 2138 needed += elem_size; 2139 } 2140 } 2141 pd++; 2142 if (pd->pd_list != NULL) 2143 goto again; 2144 mutex_exit(&proclist_lock); 2145 2146 if (where != NULL) { 2147 if (type == KERN_PROC) 2148 *oldlenp = (char *)dp - where; 2149 else 2150 *oldlenp = dp2 - where; 2151 if (needed > *oldlenp) { 2152 error = ENOMEM; 2153 goto out; 2154 } 2155 } else { 2156 needed += KERN_PROCSLOP; 2157 *oldlenp = needed; 2158 } 2159 if (kproc2) 2160 free(kproc2, M_TEMP); 2161 if (eproc) 2162 free(eproc, M_TEMP); 2163 return 0; 2164 cleanup: 2165 mutex_exit(&proclist_lock); 2166 out: 2167 if (kproc2) 2168 free(kproc2, M_TEMP); 2169 if (eproc) 2170 free(eproc, M_TEMP); 2171 return error; 2172 } 2173 2174 /* 2175 * sysctl helper routine for kern.proc_args pseudo-subtree. 2176 */ 2177 static int 2178 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2179 { 2180 struct ps_strings pss; 2181 struct proc *p; 2182 size_t len, i; 2183 struct uio auio; 2184 struct iovec aiov; 2185 pid_t pid; 2186 int nargv, type, error; 2187 char *arg; 2188 char **argv = NULL; 2189 char *tmp; 2190 struct vmspace *vmspace; 2191 vaddr_t psstr_addr; 2192 vaddr_t offsetn; 2193 vaddr_t offsetv; 2194 2195 if (namelen == 1 && name[0] == CTL_QUERY) 2196 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2197 2198 if (newp != NULL || namelen != 2) 2199 return (EINVAL); 2200 pid = name[0]; 2201 type = name[1]; 2202 2203 switch (type) { 2204 case KERN_PROC_ARGV: 2205 case KERN_PROC_NARGV: 2206 case KERN_PROC_ENV: 2207 case KERN_PROC_NENV: 2208 /* ok */ 2209 break; 2210 default: 2211 return (EINVAL); 2212 } 2213 2214 mutex_enter(&proclist_lock); 2215 2216 /* check pid */ 2217 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2218 error = EINVAL; 2219 goto out_locked; 2220 } 2221 2222 error = kauth_authorize_process(l->l_cred, 2223 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2224 if (error) { 2225 goto out_locked; 2226 } 2227 2228 /* only root or same user change look at the environment */ 2229 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2230 if (kauth_authorize_generic(l->l_cred, KAUTH_GENERIC_ISSUSER, 2231 NULL) != 0) { 2232 if (kauth_cred_getuid(l->l_cred) != 2233 kauth_cred_getuid(p->p_cred) || 2234 kauth_cred_getuid(l->l_cred) != 2235 kauth_cred_getsvuid(p->p_cred)) { 2236 error = EPERM; 2237 goto out_locked; 2238 } 2239 } 2240 } 2241 2242 if (oldp == NULL) { 2243 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2244 *oldlenp = sizeof (int); 2245 else 2246 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2247 error = 0; 2248 goto out_locked; 2249 } 2250 2251 /* 2252 * Zombies don't have a stack, so we can't read their psstrings. 2253 * System processes also don't have a user stack. 2254 */ 2255 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2256 error = EINVAL; 2257 goto out_locked; 2258 } 2259 2260 /* 2261 * Lock the process down in memory. 2262 */ 2263 /* XXXCDC: how should locking work here? */ 2264 if ((l->l_flag & LW_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2265 error = EFAULT; 2266 goto out_locked; 2267 } 2268 2269 psstr_addr = (vaddr_t)p->p_psstr; 2270 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2271 offsetn = p->p_psnargv; 2272 offsetv = p->p_psargv; 2273 } else { 2274 offsetn = p->p_psnenv; 2275 offsetv = p->p_psenv; 2276 } 2277 vmspace = p->p_vmspace; 2278 vmspace->vm_refcnt++; /* XXX */ 2279 2280 mutex_exit(&proclist_lock); 2281 2282 /* 2283 * Allocate a temporary buffer to hold the arguments. 2284 */ 2285 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2286 2287 /* 2288 * Read in the ps_strings structure. 2289 */ 2290 aiov.iov_base = &pss; 2291 aiov.iov_len = sizeof(pss); 2292 auio.uio_iov = &aiov; 2293 auio.uio_iovcnt = 1; 2294 auio.uio_offset = psstr_addr; 2295 auio.uio_resid = sizeof(pss); 2296 auio.uio_rw = UIO_READ; 2297 UIO_SETUP_SYSSPACE(&auio); 2298 error = uvm_io(&vmspace->vm_map, &auio); 2299 if (error) 2300 goto done; 2301 2302 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2303 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2304 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2305 *oldlenp = sizeof(nargv); 2306 goto done; 2307 } 2308 /* 2309 * Now read the address of the argument vector. 2310 */ 2311 switch (type) { 2312 case KERN_PROC_ARGV: 2313 /* FALLTHROUGH */ 2314 case KERN_PROC_ENV: 2315 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2316 break; 2317 default: 2318 return (EINVAL); 2319 } 2320 2321 #ifdef COMPAT_NETBSD32 2322 if (p->p_flag & PK_32) 2323 len = sizeof(netbsd32_charp) * nargv; 2324 else 2325 #endif 2326 len = sizeof(char *) * nargv; 2327 2328 argv = malloc(len, M_TEMP, M_WAITOK); 2329 2330 aiov.iov_base = argv; 2331 aiov.iov_len = len; 2332 auio.uio_iov = &aiov; 2333 auio.uio_iovcnt = 1; 2334 auio.uio_offset = (off_t)(unsigned long)tmp; 2335 auio.uio_resid = len; 2336 auio.uio_rw = UIO_READ; 2337 UIO_SETUP_SYSSPACE(&auio); 2338 error = uvm_io(&vmspace->vm_map, &auio); 2339 if (error) 2340 goto done; 2341 2342 /* 2343 * Now copy each string. 2344 */ 2345 len = 0; /* bytes written to user buffer */ 2346 for (i = 0; i < nargv; i++) { 2347 int finished = 0; 2348 vaddr_t base; 2349 size_t xlen; 2350 int j; 2351 2352 #ifdef COMPAT_NETBSD32 2353 if (p->p_flag & PK_32) { 2354 netbsd32_charp *argv32; 2355 2356 argv32 = (netbsd32_charp *)argv; 2357 2358 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2359 } else 2360 #endif 2361 base = (vaddr_t)argv[i]; 2362 2363 while (!finished) { 2364 xlen = PAGE_SIZE - (base & PAGE_MASK); 2365 2366 aiov.iov_base = arg; 2367 aiov.iov_len = PAGE_SIZE; 2368 auio.uio_iov = &aiov; 2369 auio.uio_iovcnt = 1; 2370 auio.uio_offset = base; 2371 auio.uio_resid = xlen; 2372 auio.uio_rw = UIO_READ; 2373 UIO_SETUP_SYSSPACE(&auio); 2374 error = uvm_io(&vmspace->vm_map, &auio); 2375 if (error) 2376 goto done; 2377 2378 /* Look for the end of the string */ 2379 for (j = 0; j < xlen; j++) { 2380 if (arg[j] == '\0') { 2381 xlen = j + 1; 2382 finished = 1; 2383 break; 2384 } 2385 } 2386 2387 /* Check for user buffer overflow */ 2388 if (len + xlen > *oldlenp) { 2389 finished = 1; 2390 if (len > *oldlenp) 2391 xlen = 0; 2392 else 2393 xlen = *oldlenp - len; 2394 } 2395 2396 /* Copyout the page */ 2397 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2398 if (error) 2399 goto done; 2400 2401 len += xlen; 2402 base += xlen; 2403 } 2404 } 2405 *oldlenp = len; 2406 2407 done: 2408 if (argv != NULL) 2409 free(argv, M_TEMP); 2410 2411 uvmspace_free(vmspace); 2412 2413 free(arg, M_TEMP); 2414 return error; 2415 2416 out_locked: 2417 mutex_exit(&proclist_lock); 2418 return error; 2419 } 2420 2421 static int 2422 sysctl_security_setidcore(SYSCTLFN_ARGS) 2423 { 2424 int newsize, error; 2425 struct sysctlnode node; 2426 2427 node = *rnode; 2428 node.sysctl_data = &newsize; 2429 newsize = *(int *)rnode->sysctl_data; 2430 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2431 if (error || newp == NULL) 2432 return error; 2433 2434 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2435 0, NULL, NULL, NULL)) 2436 return (EPERM); 2437 2438 *(int *)rnode->sysctl_data = newsize; 2439 2440 return 0; 2441 } 2442 2443 static int 2444 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2445 { 2446 int error; 2447 char *newsetidcorename; 2448 struct sysctlnode node; 2449 2450 newsetidcorename = PNBUF_GET(); 2451 node = *rnode; 2452 node.sysctl_data = newsetidcorename; 2453 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2454 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2455 if (error || newp == NULL) { 2456 goto out; 2457 } 2458 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2459 0, NULL, NULL, NULL)) { 2460 error = EPERM; 2461 goto out; 2462 } 2463 if (strlen(newsetidcorename) == 0) { 2464 error = EINVAL; 2465 goto out; 2466 } 2467 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2468 out: 2469 PNBUF_PUT(newsetidcorename); 2470 return error; 2471 } 2472 2473 /* 2474 * sysctl helper routine for kern.cp_id node. maps cpus to their 2475 * cpuids. 2476 */ 2477 static int 2478 sysctl_kern_cpid(SYSCTLFN_ARGS) 2479 { 2480 struct sysctlnode node = *rnode; 2481 2482 #ifndef MULTIPROCESSOR 2483 uint64_t id; 2484 2485 if (namelen == 1) { 2486 if (name[0] != 0) 2487 return (ENOENT); 2488 /* 2489 * you're allowed to ask for the zero'th processor 2490 */ 2491 name++; 2492 namelen--; 2493 } 2494 node.sysctl_data = &id; 2495 node.sysctl_size = sizeof(id); 2496 id = cpu_number(); 2497 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2498 2499 #else /* MULTIPROCESSOR */ 2500 uint64_t *cp_id = NULL; 2501 int error, n = ncpu; 2502 struct cpu_info *ci; 2503 CPU_INFO_ITERATOR cii; 2504 2505 /* 2506 * here you may either retrieve a single cpu id or the whole 2507 * set. the size you get back when probing depends on what 2508 * you ask for. 2509 */ 2510 switch (namelen) { 2511 case 0: 2512 node.sysctl_size = n * sizeof(uint64_t); 2513 n = -2; /* ALL */ 2514 break; 2515 case 1: 2516 if (name[0] < 0 || name[0] >= n) 2517 return (ENOENT); /* ENOSUCHPROCESSOR */ 2518 node.sysctl_size = sizeof(uint64_t); 2519 n = name[0]; 2520 /* 2521 * adjust these so that sysctl_lookup() will be happy 2522 */ 2523 name++; 2524 namelen--; 2525 break; 2526 default: 2527 return (EINVAL); 2528 } 2529 2530 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2531 if (cp_id == NULL) 2532 return (ENOMEM); 2533 node.sysctl_data = cp_id; 2534 memset(cp_id, 0, node.sysctl_size); 2535 2536 for (CPU_INFO_FOREACH(cii, ci)) { 2537 if (n <= 0) 2538 cp_id[0] = ci->ci_cpuid; 2539 /* 2540 * if a specific processor was requested and we just 2541 * did it, we're done here 2542 */ 2543 if (n == 0) 2544 break; 2545 /* 2546 * if doing "all", skip to next cp_id slot for next processor 2547 */ 2548 if (n == -2) 2549 cp_id++; 2550 /* 2551 * if we're doing a specific processor, we're one 2552 * processor closer 2553 */ 2554 if (n > 0) 2555 n--; 2556 } 2557 2558 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2559 free(node.sysctl_data, M_TEMP); 2560 return (error); 2561 2562 #endif /* MULTIPROCESSOR */ 2563 } 2564 2565 /* 2566 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2567 * calculate on the fly taking into account integer overflow and the 2568 * current wired count. 2569 */ 2570 static int 2571 sysctl_hw_usermem(SYSCTLFN_ARGS) 2572 { 2573 u_int ui; 2574 u_quad_t uq; 2575 struct sysctlnode node; 2576 2577 node = *rnode; 2578 switch (rnode->sysctl_num) { 2579 case HW_USERMEM: 2580 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2581 ui = UINT_MAX; 2582 else 2583 ui *= PAGE_SIZE; 2584 node.sysctl_data = &ui; 2585 break; 2586 case HW_USERMEM64: 2587 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2588 node.sysctl_data = &uq; 2589 break; 2590 default: 2591 return (EINVAL); 2592 } 2593 2594 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2595 } 2596 2597 /* 2598 * sysctl helper routine for kern.cnmagic node. pulls the old value 2599 * out, encoded, and stuffs the new value in for decoding. 2600 */ 2601 static int 2602 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2603 { 2604 char magic[CNS_LEN]; 2605 int error; 2606 struct sysctlnode node; 2607 2608 if (oldp) 2609 cn_get_magic(magic, CNS_LEN); 2610 node = *rnode; 2611 node.sysctl_data = &magic[0]; 2612 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2613 if (error || newp == NULL) 2614 return (error); 2615 2616 return (cn_set_magic(magic)); 2617 } 2618 2619 static int 2620 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2621 { 2622 struct sysctlnode node; 2623 2624 node = *rnode; 2625 node.sysctl_data = &ncpu; 2626 2627 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2628 } 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 ki->p_estcpu = p->p_estcpu; 2745 2746 mutex_enter(&p->p_smutex); 2747 2748 ki->p_uticks = p->p_uticks; 2749 ki->p_sticks = p->p_sticks; 2750 ki->p_iticks = p->p_iticks; 2751 2752 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2753 ki->p_traceflag = p->p_traceflag; 2754 2755 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2756 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2757 2758 ki->p_cpticks = 0; 2759 ki->p_pctcpu = p->p_pctcpu; 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 } 2768 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2769 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2770 2771 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2772 ki->p_realstat = p->p_stat; 2773 ki->p_nice = p->p_nice; 2774 2775 ki->p_xstat = p->p_xstat; 2776 ki->p_acflag = p->p_acflag; 2777 2778 strncpy(ki->p_comm, p->p_comm, 2779 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2780 2781 strncpy(ki->p_login, p->p_session->s_login, 2782 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2783 2784 ki->p_nlwps = p->p_nlwps; 2785 ki->p_realflag = ki->p_flag; 2786 2787 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2788 ki->p_vm_rssize = 0; 2789 ki->p_vm_tsize = 0; 2790 ki->p_vm_dsize = 0; 2791 ki->p_vm_ssize = 0; 2792 ki->p_nrlwps = 0; 2793 l = NULL; 2794 } else { 2795 struct vmspace *vm = p->p_vmspace; 2796 int tmp; 2797 2798 ki->p_vm_rssize = vm_resident_count(vm); 2799 ki->p_vm_tsize = vm->vm_tsize; 2800 ki->p_vm_dsize = vm->vm_dsize; 2801 ki->p_vm_ssize = vm->vm_ssize; 2802 2803 /* Pick a "representative" LWP */ 2804 l = proc_representative_lwp(p, &tmp, 1); 2805 lwp_lock(l); 2806 ki->p_nrlwps = tmp; 2807 ki->p_forw = 0; 2808 ki->p_back = 0; 2809 ki->p_addr = PTRTOUINT64(l->l_addr); 2810 ki->p_stat = l->l_stat; 2811 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2812 ki->p_swtime = l->l_swtime; 2813 ki->p_slptime = l->l_slptime; 2814 if (l->l_stat == LSONPROC) 2815 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2816 else 2817 ki->p_schedflags = 0; 2818 ki->p_holdcnt = l->l_holdcnt; 2819 ki->p_priority = l->l_priority; 2820 ki->p_usrpri = l->l_usrpri; 2821 if (l->l_wmesg) 2822 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2823 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2824 lwp_unlock(l); 2825 } 2826 if (p->p_session->s_ttyvp) 2827 ki->p_eflag |= EPROC_CTTY; 2828 if (SESS_LEADER(p)) 2829 ki->p_eflag |= EPROC_SLEADER; 2830 2831 /* XXX Is this double check necessary? */ 2832 if (P_ZOMBIE(p)) { 2833 ki->p_uvalid = 0; 2834 ki->p_rtime_sec = 0; 2835 ki->p_rtime_usec = 0; 2836 } else { 2837 ki->p_uvalid = 1; 2838 2839 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2840 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2841 2842 calcru(p, &ut, &st, NULL, &rt); 2843 ki->p_rtime_sec = rt.tv_sec; 2844 ki->p_rtime_usec = rt.tv_usec; 2845 ki->p_uutime_sec = ut.tv_sec; 2846 ki->p_uutime_usec = ut.tv_usec; 2847 ki->p_ustime_sec = st.tv_sec; 2848 ki->p_ustime_usec = st.tv_usec; 2849 2850 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2851 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2852 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2853 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2854 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2855 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2856 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2857 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2858 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2859 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2860 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2861 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2862 2863 ki->p_uru_nvcsw = 0; 2864 ki->p_uru_nivcsw = 0; 2865 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 2866 ki->p_uru_nvcsw += (l->l_ncsw - l->l_nivcsw); 2867 ki->p_uru_nivcsw += l->l_nivcsw; 2868 } 2869 2870 timeradd(&p->p_stats->p_cru.ru_utime, 2871 &p->p_stats->p_cru.ru_stime, &ut); 2872 ki->p_uctime_sec = ut.tv_sec; 2873 ki->p_uctime_usec = ut.tv_usec; 2874 } 2875 #ifdef MULTIPROCESSOR 2876 if (l != NULL) 2877 ki->p_cpuid = l->l_cpu->ci_cpuid; 2878 else 2879 #endif 2880 ki->p_cpuid = KI_NOCPU; 2881 2882 mutex_exit(&p->p_smutex); 2883 } 2884 2885 /* 2886 * Fill in a kinfo_lwp structure for the specified lwp. 2887 */ 2888 static void 2889 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2890 { 2891 struct proc *p = l->l_proc; 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 = l->l_priority; 2909 kl->l_usrpri = l->l_usrpri; 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 kl->l_rtime_sec = l->l_rtime.tv_sec; 2919 kl->l_rtime_usec = l->l_rtime.tv_usec; 2920 kl->l_cpticks = l->l_cpticks; 2921 kl->l_pctcpu = l->l_pctcpu; 2922 kl->l_pid = p->p_pid; 2923 if (l->l_name == NULL) 2924 kl->l_name[0] = '\0'; 2925 else 2926 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 2927 } 2928 2929 /* 2930 * Fill in an eproc structure for the specified process. 2931 */ 2932 void 2933 fill_eproc(struct proc *p, struct eproc *ep) 2934 { 2935 struct tty *tp; 2936 struct lwp *l; 2937 2938 ep->e_paddr = p; 2939 ep->e_sess = p->p_session; 2940 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 2941 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 2942 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2943 ep->e_vm.vm_rssize = 0; 2944 ep->e_vm.vm_tsize = 0; 2945 ep->e_vm.vm_dsize = 0; 2946 ep->e_vm.vm_ssize = 0; 2947 /* ep->e_vm.vm_pmap = XXX; */ 2948 } else { 2949 struct vmspace *vm = p->p_vmspace; 2950 2951 ep->e_vm.vm_rssize = vm_resident_count(vm); 2952 ep->e_vm.vm_tsize = vm->vm_tsize; 2953 ep->e_vm.vm_dsize = vm->vm_dsize; 2954 ep->e_vm.vm_ssize = vm->vm_ssize; 2955 2956 /* Pick a "representative" LWP */ 2957 mutex_enter(&p->p_smutex); 2958 l = proc_representative_lwp(p, NULL, 1); 2959 lwp_lock(l); 2960 if (l->l_wmesg) 2961 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2962 lwp_unlock(l); 2963 mutex_exit(&p->p_smutex); 2964 } 2965 if (p->p_pptr) 2966 ep->e_ppid = p->p_pptr->p_pid; 2967 else 2968 ep->e_ppid = 0; 2969 ep->e_pgid = p->p_pgrp->pg_id; 2970 ep->e_sid = ep->e_sess->s_sid; 2971 ep->e_jobc = p->p_pgrp->pg_jobc; 2972 if ((p->p_lflag & PL_CONTROLT) && 2973 (tp = ep->e_sess->s_ttyp)) { 2974 ep->e_tdev = tp->t_dev; 2975 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2976 ep->e_tsess = tp->t_session; 2977 } else 2978 ep->e_tdev = NODEV; 2979 2980 ep->e_xsize = ep->e_xrssize = 0; 2981 ep->e_xccount = ep->e_xswrss = 0; 2982 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2983 if (SESS_LEADER(p)) 2984 ep->e_flag |= EPROC_SLEADER; 2985 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2986 } 2987 2988 u_int 2989 sysctl_map_flags(const u_int *map, u_int word) 2990 { 2991 u_int rv; 2992 2993 for (rv = 0; *map != 0; map += 2) 2994 if ((word & map[0]) != 0) 2995 rv |= map[1]; 2996 2997 return rv; 2998 } 2999
Indexes created Tue Sep 23 07:09:52 GMT 2025