init_sysctl.c revision 1.129
1 /* $NetBSD: init_sysctl.c,v 1.129 2008/04/02 10:53:23 xtraeme Exp $ */ 2 3 /*- 4 * Copyright (c) 2003, 2007, 2008 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, and by Andrew Doran. 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 1.129 2008/04/02 10:53:23 xtraeme Exp $"); 41 42 #include "opt_sysv.h" 43 #include "opt_posix.h" 44 #include "opt_compat_netbsd32.h" 45 #include "pty.h" 46 #include "rnd.h" 47 48 #include <sys/types.h> 49 #include <sys/param.h> 50 #include <sys/sysctl.h> 51 #include <sys/cpu.h> 52 #include <sys/errno.h> 53 #include <sys/systm.h> 54 #include <sys/kernel.h> 55 #include <sys/unistd.h> 56 #include <sys/disklabel.h> 57 #include <sys/rnd.h> 58 #include <sys/vnode.h> 59 #include <sys/mount.h> 60 #include <sys/namei.h> 61 #include <sys/msgbuf.h> 62 #include <dev/cons.h> 63 #include <sys/socketvar.h> 64 #include <sys/file.h> 65 #include <sys/filedesc.h> 66 #include <sys/tty.h> 67 #include <sys/malloc.h> 68 #include <sys/resource.h> 69 #include <sys/resourcevar.h> 70 #include <sys/exec.h> 71 #include <sys/conf.h> 72 #include <sys/device.h> 73 #include <sys/stat.h> 74 #include <sys/kauth.h> 75 #include <sys/ktrace.h> 76 77 #ifdef COMPAT_NETBSD32 78 #include <compat/netbsd32/netbsd32.h> 79 #endif 80 81 #include <sys/cpu.h> 82 83 /* XXX this should not be here */ 84 int security_setidcore_dump; 85 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 86 uid_t security_setidcore_owner = 0; 87 gid_t security_setidcore_group = 0; 88 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 89 90 static const u_int sysctl_flagmap[] = { 91 PK_ADVLOCK, P_ADVLOCK, 92 PK_EXEC, P_EXEC, 93 PK_NOCLDWAIT, P_NOCLDWAIT, 94 PK_32, P_32, 95 PK_CLDSIGIGN, P_CLDSIGIGN, 96 PK_SUGID, P_SUGID, 97 0 98 }; 99 100 static const u_int sysctl_sflagmap[] = { 101 PS_NOCLDSTOP, P_NOCLDSTOP, 102 PS_PPWAIT, P_PPWAIT, 103 PS_WEXIT, P_WEXIT, 104 PS_STOPFORK, P_STOPFORK, 105 PS_STOPEXEC, P_STOPEXEC, 106 PS_STOPEXIT, P_STOPEXIT, 107 0 108 }; 109 110 static const u_int sysctl_slflagmap[] = { 111 PSL_TRACED, P_TRACED, 112 PSL_FSTRACE, P_FSTRACE, 113 PSL_CHTRACED, P_CHTRACED, 114 PSL_SYSCALL, P_SYSCALL, 115 0 116 }; 117 118 static const u_int sysctl_lflagmap[] = { 119 PL_CONTROLT, P_CONTROLT, 120 0 121 }; 122 123 static const u_int sysctl_stflagmap[] = { 124 PST_PROFIL, P_PROFIL, 125 0 126 127 }; 128 129 static const u_int sysctl_lwpflagmap[] = { 130 LW_INMEM, P_INMEM, 131 LW_SINTR, P_SINTR, 132 LW_SYSTEM, P_SYSTEM, 133 0 134 }; 135 136 static const u_int sysctl_lwpprflagmap[] = { 137 LPR_DETACHED, L_DETACHED, 138 0 139 }; 140 141 /* 142 * try over estimating by 5 procs/lwps 143 */ 144 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 145 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 146 147 static int dcopyout(struct lwp *, const void *, void *, size_t); 148 149 static int 150 dcopyout(struct lwp *l, const void *kaddr, void *uaddr, size_t len) 151 { 152 int error; 153 154 error = copyout(kaddr, uaddr, len); 155 ktrmibio(-1, UIO_READ, uaddr, len, error); 156 157 return error; 158 } 159 160 #ifdef DIAGNOSTIC 161 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 162 #endif 163 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 164 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 165 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 166 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 167 static int sysctl_setlen(SYSCTLFN_PROTO); 168 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 169 static int sysctl_kern_file(SYSCTLFN_PROTO); 170 static int sysctl_msgbuf(SYSCTLFN_PROTO); 171 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 172 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 173 #if NPTY > 0 174 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 175 #endif /* NPTY > 0 */ 176 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 177 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 178 static int sysctl_kern_arnd(SYSCTLFN_PROTO); 179 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 180 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 181 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 182 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 183 static int sysctl_kern_file2(SYSCTLFN_PROTO); 184 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 185 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 186 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 187 static int sysctl_doeproc(SYSCTLFN_PROTO); 188 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 189 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 190 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 191 192 static u_int sysctl_map_flags(const u_int *, u_int); 193 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 194 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 195 static void fill_file(struct kinfo_file *, const file_t *, const fdfile_t *, 196 int, pid_t); 197 198 /* 199 * ******************************************************************** 200 * section 1: setup routines 201 * ******************************************************************** 202 * These functions are stuffed into a link set for sysctl setup 203 * functions. They're never called or referenced from anywhere else. 204 * ******************************************************************** 205 */ 206 207 /* 208 * sets up the base nodes... 209 */ 210 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 211 { 212 213 sysctl_createv(clog, 0, NULL, NULL, 214 CTLFLAG_PERMANENT, 215 CTLTYPE_NODE, "kern", 216 SYSCTL_DESCR("High kernel"), 217 NULL, 0, NULL, 0, 218 CTL_KERN, CTL_EOL); 219 sysctl_createv(clog, 0, NULL, NULL, 220 CTLFLAG_PERMANENT, 221 CTLTYPE_NODE, "vm", 222 SYSCTL_DESCR("Virtual memory"), 223 NULL, 0, NULL, 0, 224 CTL_VM, CTL_EOL); 225 sysctl_createv(clog, 0, NULL, NULL, 226 CTLFLAG_PERMANENT, 227 CTLTYPE_NODE, "vfs", 228 SYSCTL_DESCR("Filesystem"), 229 NULL, 0, NULL, 0, 230 CTL_VFS, CTL_EOL); 231 sysctl_createv(clog, 0, NULL, NULL, 232 CTLFLAG_PERMANENT, 233 CTLTYPE_NODE, "net", 234 SYSCTL_DESCR("Networking"), 235 NULL, 0, NULL, 0, 236 CTL_NET, CTL_EOL); 237 sysctl_createv(clog, 0, NULL, NULL, 238 CTLFLAG_PERMANENT, 239 CTLTYPE_NODE, "debug", 240 SYSCTL_DESCR("Debugging"), 241 NULL, 0, NULL, 0, 242 CTL_DEBUG, CTL_EOL); 243 sysctl_createv(clog, 0, NULL, NULL, 244 CTLFLAG_PERMANENT, 245 CTLTYPE_NODE, "hw", 246 SYSCTL_DESCR("Generic CPU, I/O"), 247 NULL, 0, NULL, 0, 248 CTL_HW, CTL_EOL); 249 sysctl_createv(clog, 0, NULL, NULL, 250 CTLFLAG_PERMANENT, 251 CTLTYPE_NODE, "machdep", 252 SYSCTL_DESCR("Machine dependent"), 253 NULL, 0, NULL, 0, 254 CTL_MACHDEP, CTL_EOL); 255 /* 256 * this node is inserted so that the sysctl nodes in libc can 257 * operate. 258 */ 259 sysctl_createv(clog, 0, NULL, NULL, 260 CTLFLAG_PERMANENT, 261 CTLTYPE_NODE, "user", 262 SYSCTL_DESCR("User-level"), 263 NULL, 0, NULL, 0, 264 CTL_USER, CTL_EOL); 265 sysctl_createv(clog, 0, NULL, NULL, 266 CTLFLAG_PERMANENT, 267 CTLTYPE_NODE, "ddb", 268 SYSCTL_DESCR("In-kernel debugger"), 269 NULL, 0, NULL, 0, 270 CTL_DDB, CTL_EOL); 271 sysctl_createv(clog, 0, NULL, NULL, 272 CTLFLAG_PERMANENT, 273 CTLTYPE_NODE, "proc", 274 SYSCTL_DESCR("Per-process"), 275 NULL, 0, NULL, 0, 276 CTL_PROC, CTL_EOL); 277 sysctl_createv(clog, 0, NULL, NULL, 278 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 279 CTLTYPE_NODE, "vendor", 280 SYSCTL_DESCR("Vendor specific"), 281 NULL, 0, NULL, 0, 282 CTL_VENDOR, CTL_EOL); 283 sysctl_createv(clog, 0, NULL, NULL, 284 CTLFLAG_PERMANENT, 285 CTLTYPE_NODE, "emul", 286 SYSCTL_DESCR("Emulation settings"), 287 NULL, 0, NULL, 0, 288 CTL_EMUL, CTL_EOL); 289 sysctl_createv(clog, 0, NULL, NULL, 290 CTLFLAG_PERMANENT, 291 CTLTYPE_NODE, "security", 292 SYSCTL_DESCR("Security"), 293 NULL, 0, NULL, 0, 294 CTL_SECURITY, CTL_EOL); 295 } 296 297 /* 298 * this setup routine is a replacement for kern_sysctl() 299 */ 300 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 301 { 302 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 303 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 304 extern int dumponpanic; /* defined in kern/subr_prf.c */ 305 const struct sysctlnode *rnode; 306 307 sysctl_createv(clog, 0, NULL, NULL, 308 CTLFLAG_PERMANENT, 309 CTLTYPE_NODE, "kern", NULL, 310 NULL, 0, NULL, 0, 311 CTL_KERN, CTL_EOL); 312 313 sysctl_createv(clog, 0, NULL, NULL, 314 CTLFLAG_PERMANENT, 315 CTLTYPE_STRING, "ostype", 316 SYSCTL_DESCR("Operating system type"), 317 NULL, 0, &ostype, 0, 318 CTL_KERN, KERN_OSTYPE, CTL_EOL); 319 sysctl_createv(clog, 0, NULL, NULL, 320 CTLFLAG_PERMANENT, 321 CTLTYPE_STRING, "osrelease", 322 SYSCTL_DESCR("Operating system release"), 323 NULL, 0, &osrelease, 0, 324 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 325 sysctl_createv(clog, 0, NULL, NULL, 326 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 327 CTLTYPE_INT, "osrevision", 328 SYSCTL_DESCR("Operating system revision"), 329 NULL, __NetBSD_Version__, NULL, 0, 330 CTL_KERN, KERN_OSREV, CTL_EOL); 331 sysctl_createv(clog, 0, NULL, NULL, 332 CTLFLAG_PERMANENT, 333 CTLTYPE_STRING, "version", 334 SYSCTL_DESCR("Kernel version"), 335 NULL, 0, &version, 0, 336 CTL_KERN, KERN_VERSION, CTL_EOL); 337 sysctl_createv(clog, 0, NULL, NULL, 338 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 339 CTLTYPE_INT, "maxvnodes", 340 SYSCTL_DESCR("Maximum number of vnodes"), 341 sysctl_kern_maxvnodes, 0, NULL, 0, 342 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 343 sysctl_createv(clog, 0, NULL, NULL, 344 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 345 CTLTYPE_INT, "maxproc", 346 SYSCTL_DESCR("Maximum number of simultaneous processes"), 347 sysctl_kern_maxproc, 0, NULL, 0, 348 CTL_KERN, KERN_MAXPROC, CTL_EOL); 349 sysctl_createv(clog, 0, NULL, NULL, 350 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 351 CTLTYPE_INT, "maxfiles", 352 SYSCTL_DESCR("Maximum number of open files"), 353 NULL, 0, &maxfiles, 0, 354 CTL_KERN, KERN_MAXFILES, CTL_EOL); 355 sysctl_createv(clog, 0, NULL, NULL, 356 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 357 CTLTYPE_INT, "argmax", 358 SYSCTL_DESCR("Maximum number of bytes of arguments to " 359 "execve(2)"), 360 NULL, ARG_MAX, NULL, 0, 361 CTL_KERN, KERN_ARGMAX, CTL_EOL); 362 sysctl_createv(clog, 0, NULL, NULL, 363 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 364 CTLTYPE_STRING, "hostname", 365 SYSCTL_DESCR("System hostname"), 366 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 367 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 368 sysctl_createv(clog, 0, NULL, NULL, 369 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 370 CTLTYPE_INT, "hostid", 371 SYSCTL_DESCR("System host ID number"), 372 sysctl_kern_hostid, 0, NULL, 0, 373 CTL_KERN, KERN_HOSTID, CTL_EOL); 374 sysctl_createv(clog, 0, NULL, NULL, 375 CTLFLAG_PERMANENT, 376 CTLTYPE_STRUCT, "clockrate", 377 SYSCTL_DESCR("Kernel clock rates"), 378 sysctl_kern_clockrate, 0, NULL, 379 sizeof(struct clockinfo), 380 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 381 sysctl_createv(clog, 0, NULL, NULL, 382 CTLFLAG_PERMANENT, 383 CTLTYPE_INT, "hardclock_ticks", 384 SYSCTL_DESCR("Number of hardclock ticks"), 385 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 386 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 387 sysctl_createv(clog, 0, NULL, NULL, 388 CTLFLAG_PERMANENT, 389 CTLTYPE_STRUCT, "vnode", 390 SYSCTL_DESCR("System vnode table"), 391 sysctl_kern_vnode, 0, NULL, 0, 392 CTL_KERN, KERN_VNODE, CTL_EOL); 393 sysctl_createv(clog, 0, NULL, NULL, 394 CTLFLAG_PERMANENT, 395 CTLTYPE_STRUCT, "file", 396 SYSCTL_DESCR("System open file table"), 397 sysctl_kern_file, 0, NULL, 0, 398 CTL_KERN, KERN_FILE, CTL_EOL); 399 #ifndef GPROF 400 sysctl_createv(clog, 0, NULL, NULL, 401 CTLFLAG_PERMANENT, 402 CTLTYPE_NODE, "profiling", 403 SYSCTL_DESCR("Profiling information (not available)"), 404 sysctl_notavail, 0, NULL, 0, 405 CTL_KERN, KERN_PROF, CTL_EOL); 406 #endif 407 sysctl_createv(clog, 0, NULL, NULL, 408 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 409 CTLTYPE_INT, "posix1version", 410 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 411 "with which the operating system attempts " 412 "to comply"), 413 NULL, _POSIX_VERSION, NULL, 0, 414 CTL_KERN, KERN_POSIX1, CTL_EOL); 415 sysctl_createv(clog, 0, NULL, NULL, 416 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 417 CTLTYPE_INT, "ngroups", 418 SYSCTL_DESCR("Maximum number of supplemental groups"), 419 NULL, NGROUPS_MAX, NULL, 0, 420 CTL_KERN, KERN_NGROUPS, CTL_EOL); 421 sysctl_createv(clog, 0, NULL, NULL, 422 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 423 CTLTYPE_INT, "job_control", 424 SYSCTL_DESCR("Whether job control is available"), 425 NULL, 1, NULL, 0, 426 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 427 sysctl_createv(clog, 0, NULL, NULL, 428 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 429 CTLTYPE_INT, "saved_ids", 430 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 431 "available"), NULL, 432 #ifdef _POSIX_SAVED_IDS 433 1, 434 #else /* _POSIX_SAVED_IDS */ 435 0, 436 #endif /* _POSIX_SAVED_IDS */ 437 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 438 sysctl_createv(clog, 0, NULL, NULL, 439 CTLFLAG_PERMANENT, 440 CTLTYPE_STRUCT, "boottime", 441 SYSCTL_DESCR("System boot time"), 442 NULL, 0, &boottime, sizeof(boottime), 443 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 444 sysctl_createv(clog, 0, NULL, NULL, 445 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 446 CTLTYPE_STRING, "domainname", 447 SYSCTL_DESCR("YP domain name"), 448 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 449 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 450 sysctl_createv(clog, 0, NULL, NULL, 451 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 452 CTLTYPE_INT, "maxpartitions", 453 SYSCTL_DESCR("Maximum number of partitions allowed per " 454 "disk"), 455 NULL, MAXPARTITIONS, NULL, 0, 456 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 457 sysctl_createv(clog, 0, NULL, NULL, 458 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 459 CTLTYPE_INT, "rawpartition", 460 SYSCTL_DESCR("Raw partition of a disk"), 461 NULL, RAW_PART, NULL, 0, 462 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 463 sysctl_createv(clog, 0, NULL, NULL, 464 CTLFLAG_PERMANENT, 465 CTLTYPE_STRUCT, "timex", NULL, 466 sysctl_notavail, 0, NULL, 0, 467 CTL_KERN, KERN_TIMEX, CTL_EOL); 468 sysctl_createv(clog, 0, NULL, NULL, 469 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 470 CTLTYPE_INT, "rtc_offset", 471 SYSCTL_DESCR("Offset of real time clock from UTC in " 472 "minutes"), 473 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 474 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 475 sysctl_createv(clog, 0, NULL, NULL, 476 CTLFLAG_PERMANENT, 477 CTLTYPE_STRING, "root_device", 478 SYSCTL_DESCR("Name of the root device"), 479 sysctl_root_device, 0, NULL, 0, 480 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 481 sysctl_createv(clog, 0, NULL, NULL, 482 CTLFLAG_PERMANENT, 483 CTLTYPE_INT, "msgbufsize", 484 SYSCTL_DESCR("Size of the kernel message buffer"), 485 sysctl_msgbuf, 0, NULL, 0, 486 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 487 sysctl_createv(clog, 0, NULL, NULL, 488 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 489 CTLTYPE_INT, "fsync", 490 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 491 "Synchronization Option is available on " 492 "this system"), 493 NULL, 1, NULL, 0, 494 CTL_KERN, KERN_FSYNC, CTL_EOL); 495 sysctl_createv(clog, 0, NULL, NULL, 496 CTLFLAG_PERMANENT, 497 CTLTYPE_NODE, "ipc", 498 SYSCTL_DESCR("SysV IPC options"), 499 NULL, 0, NULL, 0, 500 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 501 sysctl_createv(clog, 0, NULL, NULL, 502 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 503 CTLTYPE_INT, "sysvmsg", 504 SYSCTL_DESCR("System V style message support available"), 505 NULL, 506 #ifdef SYSVMSG 507 1, 508 #else /* SYSVMSG */ 509 0, 510 #endif /* SYSVMSG */ 511 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 512 sysctl_createv(clog, 0, NULL, NULL, 513 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 514 CTLTYPE_INT, "sysvsem", 515 SYSCTL_DESCR("System V style semaphore support " 516 "available"), NULL, 517 #ifdef SYSVSEM 518 1, 519 #else /* SYSVSEM */ 520 0, 521 #endif /* SYSVSEM */ 522 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 523 sysctl_createv(clog, 0, NULL, NULL, 524 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 525 CTLTYPE_INT, "sysvshm", 526 SYSCTL_DESCR("System V style shared memory support " 527 "available"), NULL, 528 #ifdef SYSVSHM 529 1, 530 #else /* SYSVSHM */ 531 0, 532 #endif /* SYSVSHM */ 533 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 534 sysctl_createv(clog, 0, NULL, NULL, 535 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 536 CTLTYPE_INT, "synchronized_io", 537 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 538 "I/O Option is available on this system"), 539 NULL, 1, NULL, 0, 540 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 541 sysctl_createv(clog, 0, NULL, NULL, 542 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 543 CTLTYPE_INT, "iov_max", 544 SYSCTL_DESCR("Maximum number of iovec structures per " 545 "process"), 546 NULL, IOV_MAX, NULL, 0, 547 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 548 sysctl_createv(clog, 0, NULL, NULL, 549 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 550 CTLTYPE_INT, "mapped_files", 551 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 552 "Files Option is available on this system"), 553 NULL, 1, NULL, 0, 554 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 555 sysctl_createv(clog, 0, NULL, NULL, 556 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 557 CTLTYPE_INT, "memlock", 558 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 559 "Locking Option is available on this " 560 "system"), 561 NULL, 1, NULL, 0, 562 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 563 sysctl_createv(clog, 0, NULL, NULL, 564 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 565 CTLTYPE_INT, "memlock_range", 566 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 567 "Locking Option is available on this " 568 "system"), 569 NULL, 1, NULL, 0, 570 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 571 sysctl_createv(clog, 0, NULL, NULL, 572 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 573 CTLTYPE_INT, "memory_protection", 574 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 575 "Protection Option is available on this " 576 "system"), 577 NULL, 1, NULL, 0, 578 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 579 sysctl_createv(clog, 0, NULL, NULL, 580 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 581 CTLTYPE_INT, "login_name_max", 582 SYSCTL_DESCR("Maximum login name length"), 583 NULL, LOGIN_NAME_MAX, NULL, 0, 584 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 585 sysctl_createv(clog, 0, NULL, NULL, 586 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 587 CTLTYPE_STRING, "defcorename", 588 SYSCTL_DESCR("Default core file name"), 589 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 590 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 591 sysctl_createv(clog, 0, NULL, NULL, 592 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 593 CTLTYPE_INT, "logsigexit", 594 SYSCTL_DESCR("Log process exit when caused by signals"), 595 NULL, 0, &kern_logsigexit, 0, 596 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 597 sysctl_createv(clog, 0, NULL, NULL, 598 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 599 CTLTYPE_INT, "fscale", 600 SYSCTL_DESCR("Kernel fixed-point scale factor"), 601 NULL, FSCALE, NULL, 0, 602 CTL_KERN, KERN_FSCALE, CTL_EOL); 603 sysctl_createv(clog, 0, NULL, NULL, 604 CTLFLAG_PERMANENT, 605 CTLTYPE_INT, "ccpu", 606 SYSCTL_DESCR("Scheduler exponential decay value"), 607 NULL, 0, &ccpu, 0, 608 CTL_KERN, KERN_CCPU, CTL_EOL); 609 sysctl_createv(clog, 0, NULL, NULL, 610 CTLFLAG_PERMANENT, 611 CTLTYPE_STRUCT, "cp_time", 612 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 613 sysctl_kern_cptime, 0, NULL, 0, 614 CTL_KERN, KERN_CP_TIME, CTL_EOL); 615 sysctl_createv(clog, 0, NULL, NULL, 616 CTLFLAG_PERMANENT, 617 CTLTYPE_INT, "msgbuf", 618 SYSCTL_DESCR("Kernel message buffer"), 619 sysctl_msgbuf, 0, NULL, 0, 620 CTL_KERN, KERN_MSGBUF, CTL_EOL); 621 sysctl_createv(clog, 0, NULL, NULL, 622 CTLFLAG_PERMANENT, 623 CTLTYPE_STRUCT, "consdev", 624 SYSCTL_DESCR("Console device"), 625 sysctl_consdev, 0, NULL, sizeof(dev_t), 626 CTL_KERN, KERN_CONSDEV, CTL_EOL); 627 #if NPTY > 0 628 sysctl_createv(clog, 0, NULL, NULL, 629 CTLFLAG_PERMANENT, 630 CTLTYPE_INT, "maxptys", 631 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 632 sysctl_kern_maxptys, 0, NULL, 0, 633 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 634 #endif /* NPTY > 0 */ 635 sysctl_createv(clog, 0, NULL, NULL, 636 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 637 CTLTYPE_INT, "maxphys", 638 SYSCTL_DESCR("Maximum raw I/O transfer size"), 639 NULL, MAXPHYS, NULL, 0, 640 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 641 sysctl_createv(clog, 0, NULL, NULL, 642 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 643 CTLTYPE_INT, "sbmax", 644 SYSCTL_DESCR("Maximum socket buffer size"), 645 sysctl_kern_sbmax, 0, NULL, 0, 646 CTL_KERN, KERN_SBMAX, CTL_EOL); 647 sysctl_createv(clog, 0, NULL, NULL, 648 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 649 CTLTYPE_INT, "monotonic_clock", 650 SYSCTL_DESCR("Implementation version of the POSIX " 651 "1003.1b Monotonic Clock Option"), 652 /* XXX _POSIX_VERSION */ 653 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 654 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 655 sysctl_createv(clog, 0, NULL, NULL, 656 CTLFLAG_PERMANENT, 657 CTLTYPE_INT, "urandom", 658 SYSCTL_DESCR("Random integer value"), 659 sysctl_kern_urnd, 0, NULL, 0, 660 CTL_KERN, KERN_URND, CTL_EOL); 661 sysctl_createv(clog, 0, NULL, NULL, 662 CTLFLAG_PERMANENT, 663 CTLTYPE_INT, "arandom", 664 SYSCTL_DESCR("n bytes of random data"), 665 sysctl_kern_arnd, 0, NULL, 0, 666 CTL_KERN, KERN_ARND, CTL_EOL); 667 sysctl_createv(clog, 0, NULL, NULL, 668 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 669 CTLTYPE_INT, "labelsector", 670 SYSCTL_DESCR("Sector number containing the disklabel"), 671 NULL, LABELSECTOR, NULL, 0, 672 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 673 sysctl_createv(clog, 0, NULL, NULL, 674 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 675 CTLTYPE_INT, "labeloffset", 676 SYSCTL_DESCR("Offset of the disklabel within the " 677 "sector"), 678 NULL, LABELOFFSET, NULL, 0, 679 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 680 sysctl_createv(clog, 0, NULL, NULL, 681 CTLFLAG_PERMANENT, 682 CTLTYPE_NODE, "lwp", 683 SYSCTL_DESCR("System-wide LWP information"), 684 sysctl_kern_lwp, 0, NULL, 0, 685 CTL_KERN, KERN_LWP, CTL_EOL); 686 sysctl_createv(clog, 0, NULL, NULL, 687 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 688 CTLTYPE_INT, "forkfsleep", 689 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 690 "to process limits"), 691 sysctl_kern_forkfsleep, 0, NULL, 0, 692 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 693 sysctl_createv(clog, 0, NULL, NULL, 694 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 695 CTLTYPE_INT, "posix_threads", 696 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 697 "Threads option to which the system " 698 "attempts to conform"), 699 /* XXX _POSIX_VERSION */ 700 NULL, _POSIX_THREADS, NULL, 0, 701 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 702 sysctl_createv(clog, 0, NULL, NULL, 703 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 704 CTLTYPE_INT, "posix_semaphores", 705 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 706 "Semaphores option to which the system " 707 "attempts to conform"), NULL, 708 #ifdef P1003_1B_SEMAPHORE 709 200112, 710 #else /* P1003_1B_SEMAPHORE */ 711 0, 712 #endif /* P1003_1B_SEMAPHORE */ 713 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 714 sysctl_createv(clog, 0, NULL, NULL, 715 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 716 CTLTYPE_INT, "posix_barriers", 717 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 718 "Barriers option to which the system " 719 "attempts to conform"), 720 /* XXX _POSIX_VERSION */ 721 NULL, _POSIX_BARRIERS, NULL, 0, 722 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 723 sysctl_createv(clog, 0, NULL, NULL, 724 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 725 CTLTYPE_INT, "posix_timers", 726 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 727 "Timers option to which the system " 728 "attempts to conform"), 729 /* XXX _POSIX_VERSION */ 730 NULL, _POSIX_TIMERS, NULL, 0, 731 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 732 sysctl_createv(clog, 0, NULL, NULL, 733 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 734 CTLTYPE_INT, "posix_spin_locks", 735 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 736 "Locks option to which the system attempts " 737 "to conform"), 738 /* XXX _POSIX_VERSION */ 739 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 740 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 741 sysctl_createv(clog, 0, NULL, NULL, 742 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 743 CTLTYPE_INT, "posix_reader_writer_locks", 744 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 745 "Read-Write Locks option to which the " 746 "system attempts to conform"), 747 /* XXX _POSIX_VERSION */ 748 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 749 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 750 sysctl_createv(clog, 0, NULL, NULL, 751 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 752 CTLTYPE_INT, "dump_on_panic", 753 SYSCTL_DESCR("Perform a crash dump on system panic"), 754 NULL, 0, &dumponpanic, 0, 755 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 756 #ifdef DIAGNOSTIC 757 sysctl_createv(clog, 0, NULL, NULL, 758 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 759 CTLTYPE_INT, "panic_now", 760 SYSCTL_DESCR("Trigger a panic"), 761 sysctl_kern_trigger_panic, 0, NULL, 0, 762 CTL_KERN, CTL_CREATE, CTL_EOL); 763 #endif 764 sysctl_createv(clog, 0, NULL, NULL, 765 CTLFLAG_PERMANENT, 766 CTLTYPE_INT, "root_partition", 767 SYSCTL_DESCR("Root partition on the root device"), 768 sysctl_kern_root_partition, 0, NULL, 0, 769 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 770 sysctl_createv(clog, 0, NULL, NULL, 771 CTLFLAG_PERMANENT, 772 CTLTYPE_STRUCT, "drivers", 773 SYSCTL_DESCR("List of all drivers with block and " 774 "character device numbers"), 775 sysctl_kern_drivers, 0, NULL, 0, 776 CTL_KERN, KERN_DRIVERS, CTL_EOL); 777 sysctl_createv(clog, 0, NULL, NULL, 778 CTLFLAG_PERMANENT, 779 CTLTYPE_STRUCT, "file2", 780 SYSCTL_DESCR("System open file table"), 781 sysctl_kern_file2, 0, NULL, 0, 782 CTL_KERN, KERN_FILE2, CTL_EOL); 783 sysctl_createv(clog, 0, NULL, NULL, 784 CTLFLAG_PERMANENT, 785 CTLTYPE_STRUCT, "cp_id", 786 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 787 sysctl_kern_cpid, 0, NULL, 0, 788 CTL_KERN, KERN_CP_ID, CTL_EOL); 789 sysctl_createv(clog, 0, NULL, &rnode, 790 CTLFLAG_PERMANENT, 791 CTLTYPE_NODE, "coredump", 792 SYSCTL_DESCR("Coredump settings."), 793 NULL, 0, NULL, 0, 794 CTL_KERN, CTL_CREATE, CTL_EOL); 795 sysctl_createv(clog, 0, &rnode, &rnode, 796 CTLFLAG_PERMANENT, 797 CTLTYPE_NODE, "setid", 798 SYSCTL_DESCR("Set-id processes' coredump settings."), 799 NULL, 0, NULL, 0, 800 CTL_CREATE, CTL_EOL); 801 sysctl_createv(clog, 0, &rnode, NULL, 802 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 803 CTLTYPE_INT, "dump", 804 SYSCTL_DESCR("Allow set-id processes to dump core."), 805 sysctl_security_setidcore, 0, &security_setidcore_dump, 806 sizeof(security_setidcore_dump), 807 CTL_CREATE, CTL_EOL); 808 sysctl_createv(clog, 0, &rnode, NULL, 809 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 810 CTLTYPE_STRING, "path", 811 SYSCTL_DESCR("Path pattern for set-id coredumps."), 812 sysctl_security_setidcorename, 0, 813 &security_setidcore_path, 814 sizeof(security_setidcore_path), 815 CTL_CREATE, CTL_EOL); 816 sysctl_createv(clog, 0, &rnode, NULL, 817 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 818 CTLTYPE_INT, "owner", 819 SYSCTL_DESCR("Owner id for set-id processes' cores."), 820 sysctl_security_setidcore, 0, &security_setidcore_owner, 821 0, 822 CTL_CREATE, CTL_EOL); 823 sysctl_createv(clog, 0, &rnode, NULL, 824 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 825 CTLTYPE_INT, "group", 826 SYSCTL_DESCR("Group id for set-id processes' cores."), 827 sysctl_security_setidcore, 0, &security_setidcore_group, 828 0, 829 CTL_CREATE, CTL_EOL); 830 sysctl_createv(clog, 0, &rnode, NULL, 831 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 832 CTLTYPE_INT, "mode", 833 SYSCTL_DESCR("Mode for set-id processes' cores."), 834 sysctl_security_setidcore, 0, &security_setidcore_mode, 835 0, 836 CTL_CREATE, CTL_EOL); 837 sysctl_createv(clog, 0, NULL, NULL, 838 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 839 CTLTYPE_INT, "no_sa_support", 840 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"), 841 NULL, 1, NULL, 0, 842 CTL_KERN, CTL_CREATE, CTL_EOL); 843 } 844 845 SYSCTL_SETUP(sysctl_kern_proc_setup, 846 "sysctl kern.proc/proc2/proc_args subtree setup") 847 { 848 849 sysctl_createv(clog, 0, NULL, NULL, 850 CTLFLAG_PERMANENT, 851 CTLTYPE_NODE, "kern", NULL, 852 NULL, 0, NULL, 0, 853 CTL_KERN, CTL_EOL); 854 855 sysctl_createv(clog, 0, NULL, NULL, 856 CTLFLAG_PERMANENT, 857 CTLTYPE_NODE, "proc", 858 SYSCTL_DESCR("System-wide process information"), 859 sysctl_doeproc, 0, NULL, 0, 860 CTL_KERN, KERN_PROC, CTL_EOL); 861 sysctl_createv(clog, 0, NULL, NULL, 862 CTLFLAG_PERMANENT, 863 CTLTYPE_NODE, "proc2", 864 SYSCTL_DESCR("Machine-independent process information"), 865 sysctl_doeproc, 0, NULL, 0, 866 CTL_KERN, KERN_PROC2, CTL_EOL); 867 sysctl_createv(clog, 0, NULL, NULL, 868 CTLFLAG_PERMANENT, 869 CTLTYPE_NODE, "proc_args", 870 SYSCTL_DESCR("Process argument information"), 871 sysctl_kern_proc_args, 0, NULL, 0, 872 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 873 874 /* 875 "nodes" under these: 876 877 KERN_PROC_ALL 878 KERN_PROC_PID pid 879 KERN_PROC_PGRP pgrp 880 KERN_PROC_SESSION sess 881 KERN_PROC_TTY tty 882 KERN_PROC_UID uid 883 KERN_PROC_RUID uid 884 KERN_PROC_GID gid 885 KERN_PROC_RGID gid 886 887 all in all, probably not worth the effort... 888 */ 889 } 890 891 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 892 { 893 u_int u; 894 u_quad_t q; 895 896 sysctl_createv(clog, 0, NULL, NULL, 897 CTLFLAG_PERMANENT, 898 CTLTYPE_NODE, "hw", NULL, 899 NULL, 0, NULL, 0, 900 CTL_HW, CTL_EOL); 901 902 sysctl_createv(clog, 0, NULL, NULL, 903 CTLFLAG_PERMANENT, 904 CTLTYPE_STRING, "machine", 905 SYSCTL_DESCR("Machine class"), 906 NULL, 0, machine, 0, 907 CTL_HW, HW_MACHINE, CTL_EOL); 908 sysctl_createv(clog, 0, NULL, NULL, 909 CTLFLAG_PERMANENT, 910 CTLTYPE_STRING, "model", 911 SYSCTL_DESCR("Machine model"), 912 NULL, 0, cpu_model, 0, 913 CTL_HW, HW_MODEL, CTL_EOL); 914 sysctl_createv(clog, 0, NULL, NULL, 915 CTLFLAG_PERMANENT, 916 CTLTYPE_INT, "ncpu", 917 SYSCTL_DESCR("Number of CPUs configured"), 918 NULL, 0, &ncpu, 0, 919 CTL_HW, HW_NCPU, CTL_EOL); 920 sysctl_createv(clog, 0, NULL, NULL, 921 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 922 CTLTYPE_INT, "byteorder", 923 SYSCTL_DESCR("System byte order"), 924 NULL, BYTE_ORDER, NULL, 0, 925 CTL_HW, HW_BYTEORDER, CTL_EOL); 926 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 927 UINT_MAX : physmem * PAGE_SIZE; 928 sysctl_createv(clog, 0, NULL, NULL, 929 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 930 CTLTYPE_INT, "physmem", 931 SYSCTL_DESCR("Bytes of physical memory"), 932 NULL, u, NULL, 0, 933 CTL_HW, HW_PHYSMEM, CTL_EOL); 934 sysctl_createv(clog, 0, NULL, NULL, 935 CTLFLAG_PERMANENT, 936 CTLTYPE_INT, "usermem", 937 SYSCTL_DESCR("Bytes of non-kernel memory"), 938 sysctl_hw_usermem, 0, NULL, 0, 939 CTL_HW, HW_USERMEM, CTL_EOL); 940 sysctl_createv(clog, 0, NULL, NULL, 941 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 942 CTLTYPE_INT, "pagesize", 943 SYSCTL_DESCR("Software page size"), 944 NULL, PAGE_SIZE, NULL, 0, 945 CTL_HW, HW_PAGESIZE, CTL_EOL); 946 sysctl_createv(clog, 0, NULL, NULL, 947 CTLFLAG_PERMANENT, 948 CTLTYPE_STRING, "machine_arch", 949 SYSCTL_DESCR("Machine CPU class"), 950 NULL, 0, machine_arch, 0, 951 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 952 sysctl_createv(clog, 0, NULL, NULL, 953 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 954 CTLTYPE_INT, "alignbytes", 955 SYSCTL_DESCR("Alignment constraint for all possible " 956 "data types"), 957 NULL, ALIGNBYTES, NULL, 0, 958 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 959 sysctl_createv(clog, 0, NULL, NULL, 960 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 961 CTLTYPE_STRING, "cnmagic", 962 SYSCTL_DESCR("Console magic key sequence"), 963 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 964 CTL_HW, HW_CNMAGIC, CTL_EOL); 965 q = (u_quad_t)physmem * PAGE_SIZE; 966 sysctl_createv(clog, 0, NULL, NULL, 967 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 968 CTLTYPE_QUAD, "physmem64", 969 SYSCTL_DESCR("Bytes of physical memory"), 970 NULL, q, NULL, 0, 971 CTL_HW, HW_PHYSMEM64, CTL_EOL); 972 sysctl_createv(clog, 0, NULL, NULL, 973 CTLFLAG_PERMANENT, 974 CTLTYPE_QUAD, "usermem64", 975 SYSCTL_DESCR("Bytes of non-kernel memory"), 976 sysctl_hw_usermem, 0, NULL, 0, 977 CTL_HW, HW_USERMEM64, CTL_EOL); 978 sysctl_createv(clog, 0, NULL, NULL, 979 CTLFLAG_PERMANENT, 980 CTLTYPE_INT, "ncpuonline", 981 SYSCTL_DESCR("Number of CPUs online"), 982 NULL, 0, &ncpuonline, 0, 983 CTL_HW, HW_NCPUONLINE, CTL_EOL); 984 } 985 986 #ifdef DEBUG 987 /* 988 * Debugging related system variables. 989 */ 990 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 991 struct ctldebug debug5, debug6, debug7, debug8, debug9; 992 struct ctldebug debug10, debug11, debug12, debug13, debug14; 993 struct ctldebug debug15, debug16, debug17, debug18, debug19; 994 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 995 &debug0, &debug1, &debug2, &debug3, &debug4, 996 &debug5, &debug6, &debug7, &debug8, &debug9, 997 &debug10, &debug11, &debug12, &debug13, &debug14, 998 &debug15, &debug16, &debug17, &debug18, &debug19, 999 }; 1000 1001 /* 1002 * this setup routine is a replacement for debug_sysctl() 1003 * 1004 * note that it creates several nodes per defined debug variable 1005 */ 1006 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1007 { 1008 struct ctldebug *cdp; 1009 char nodename[20]; 1010 int i; 1011 1012 /* 1013 * two ways here: 1014 * 1015 * the "old" way (debug.name -> value) which was emulated by 1016 * the sysctl(8) binary 1017 * 1018 * the new way, which the sysctl(8) binary was actually using 1019 1020 node debug 1021 node debug.0 1022 string debug.0.name 1023 int debug.0.value 1024 int debug.name 1025 1026 */ 1027 1028 sysctl_createv(clog, 0, NULL, NULL, 1029 CTLFLAG_PERMANENT, 1030 CTLTYPE_NODE, "debug", NULL, 1031 NULL, 0, NULL, 0, 1032 CTL_DEBUG, CTL_EOL); 1033 1034 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1035 cdp = debugvars[i]; 1036 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1037 continue; 1038 1039 snprintf(nodename, sizeof(nodename), "debug%d", i); 1040 sysctl_createv(clog, 0, NULL, NULL, 1041 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1042 CTLTYPE_NODE, nodename, NULL, 1043 NULL, 0, NULL, 0, 1044 CTL_DEBUG, i, CTL_EOL); 1045 sysctl_createv(clog, 0, NULL, NULL, 1046 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1047 CTLTYPE_STRING, "name", NULL, 1048 /*XXXUNCONST*/ 1049 NULL, 0, __UNCONST(cdp->debugname), 0, 1050 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1051 sysctl_createv(clog, 0, NULL, NULL, 1052 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1053 CTLTYPE_INT, "value", NULL, 1054 NULL, 0, cdp->debugvar, 0, 1055 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1056 sysctl_createv(clog, 0, NULL, NULL, 1057 CTLFLAG_PERMANENT, 1058 CTLTYPE_INT, cdp->debugname, NULL, 1059 NULL, 0, cdp->debugvar, 0, 1060 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1061 } 1062 } 1063 #endif /* DEBUG */ 1064 1065 /* 1066 * ******************************************************************** 1067 * section 2: private node-specific helper routines. 1068 * ******************************************************************** 1069 */ 1070 1071 #ifdef DIAGNOSTIC 1072 static int 1073 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1074 { 1075 int newtrig, error; 1076 struct sysctlnode node; 1077 1078 newtrig = 0; 1079 node = *rnode; 1080 node.sysctl_data = &newtrig; 1081 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1082 if (error || newp == NULL) 1083 return (error); 1084 1085 if (newtrig != 0) 1086 panic("Panic triggered"); 1087 1088 return (error); 1089 } 1090 #endif 1091 1092 /* 1093 * sysctl helper routine for kern.maxvnodes. Drain vnodes if 1094 * new value is lower than desiredvnodes and then calls reinit 1095 * routines that needs to adjust to the new value. 1096 */ 1097 static int 1098 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1099 { 1100 int error, new_vnodes, old_vnodes; 1101 struct sysctlnode node; 1102 1103 new_vnodes = desiredvnodes; 1104 node = *rnode; 1105 node.sysctl_data = &new_vnodes; 1106 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1107 if (error || newp == NULL) 1108 return (error); 1109 1110 old_vnodes = desiredvnodes; 1111 desiredvnodes = new_vnodes; 1112 if (new_vnodes < old_vnodes) { 1113 error = vfs_drainvnodes(new_vnodes, l); 1114 if (error) { 1115 desiredvnodes = old_vnodes; 1116 return (error); 1117 } 1118 } 1119 vfs_reinit(); 1120 nchreinit(); 1121 1122 return (0); 1123 } 1124 1125 /* 1126 * sysctl helper routine for rtc_offset - set time after changes 1127 */ 1128 static int 1129 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1130 { 1131 struct timespec ts, delta; 1132 int error, new_rtc_offset; 1133 struct sysctlnode node; 1134 1135 new_rtc_offset = rtc_offset; 1136 node = *rnode; 1137 node.sysctl_data = &new_rtc_offset; 1138 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1139 if (error || newp == NULL) 1140 return (error); 1141 1142 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1143 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1144 KAUTH_ARG(new_rtc_offset), NULL, NULL)) 1145 return (EPERM); 1146 if (rtc_offset == new_rtc_offset) 1147 return (0); 1148 1149 /* if we change the offset, adjust the time */ 1150 nanotime(&ts); 1151 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1152 delta.tv_nsec = 0; 1153 timespecadd(&ts, &delta, &ts); 1154 rtc_offset = new_rtc_offset; 1155 return (settime(l->l_proc, &ts)); 1156 } 1157 1158 /* 1159 * sysctl helper routine for kern.maxproc. Ensures that the new 1160 * values are not too low or too high. 1161 */ 1162 static int 1163 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1164 { 1165 int error, nmaxproc; 1166 struct sysctlnode node; 1167 1168 nmaxproc = maxproc; 1169 node = *rnode; 1170 node.sysctl_data = &nmaxproc; 1171 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1172 if (error || newp == NULL) 1173 return (error); 1174 1175 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1176 return (EINVAL); 1177 #ifdef __HAVE_CPU_MAXPROC 1178 if (nmaxproc > cpu_maxproc()) 1179 return (EINVAL); 1180 #endif 1181 maxproc = nmaxproc; 1182 1183 return (0); 1184 } 1185 1186 /* 1187 * sysctl helper function for kern.hostid. The hostid is a long, but 1188 * we export it as an int, so we need to give it a little help. 1189 */ 1190 static int 1191 sysctl_kern_hostid(SYSCTLFN_ARGS) 1192 { 1193 int error, inthostid; 1194 struct sysctlnode node; 1195 1196 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1197 node = *rnode; 1198 node.sysctl_data = &inthostid; 1199 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1200 if (error || newp == NULL) 1201 return (error); 1202 1203 hostid = (unsigned)inthostid; 1204 1205 return (0); 1206 } 1207 1208 /* 1209 * sysctl helper function for kern.hostname and kern.domainnname. 1210 * resets the relevant recorded length when the underlying name is 1211 * changed. 1212 */ 1213 static int 1214 sysctl_setlen(SYSCTLFN_ARGS) 1215 { 1216 int error; 1217 1218 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1219 if (error || newp == NULL) 1220 return (error); 1221 1222 switch (rnode->sysctl_num) { 1223 case KERN_HOSTNAME: 1224 hostnamelen = strlen((const char*)rnode->sysctl_data); 1225 break; 1226 case KERN_DOMAINNAME: 1227 domainnamelen = strlen((const char*)rnode->sysctl_data); 1228 break; 1229 } 1230 1231 return (0); 1232 } 1233 1234 /* 1235 * sysctl helper routine for kern.clockrate. Assembles a struct on 1236 * the fly to be returned to the caller. 1237 */ 1238 static int 1239 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1240 { 1241 struct clockinfo clkinfo; 1242 struct sysctlnode node; 1243 1244 clkinfo.tick = tick; 1245 clkinfo.tickadj = tickadj; 1246 clkinfo.hz = hz; 1247 clkinfo.profhz = profhz; 1248 clkinfo.stathz = stathz ? stathz : hz; 1249 1250 node = *rnode; 1251 node.sysctl_data = &clkinfo; 1252 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1253 } 1254 1255 1256 /* 1257 * sysctl helper routine for kern.file pseudo-subtree. 1258 */ 1259 static int 1260 sysctl_kern_file(SYSCTLFN_ARGS) 1261 { 1262 int error; 1263 size_t buflen; 1264 struct file *fp, *dp, *np, fbuf; 1265 char *start, *where; 1266 1267 start = where = oldp; 1268 buflen = *oldlenp; 1269 dp = NULL; 1270 1271 if (where == NULL) { 1272 /* 1273 * overestimate by 10 files 1274 */ 1275 *oldlenp = sizeof(filehead) + (nfiles + 10) * 1276 sizeof(struct file); 1277 return (0); 1278 } 1279 1280 /* 1281 * first dcopyout filehead 1282 */ 1283 if (buflen < sizeof(filehead)) { 1284 *oldlenp = 0; 1285 return (0); 1286 } 1287 sysctl_unlock(); 1288 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1289 if (error) { 1290 sysctl_relock(); 1291 return error; 1292 } 1293 buflen -= sizeof(filehead); 1294 where += sizeof(filehead); 1295 1296 /* 1297 * allocate dummy file descriptor to make position in list 1298 */ 1299 if ((dp = fgetdummy()) == NULL) { 1300 sysctl_relock(); 1301 return ENOMEM; 1302 } 1303 1304 /* 1305 * followed by an array of file structures 1306 */ 1307 mutex_enter(&filelist_lock); 1308 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1309 np = LIST_NEXT(fp, f_list); 1310 mutex_enter(&fp->f_lock); 1311 if (fp->f_count == 0) { 1312 mutex_exit(&fp->f_lock); 1313 continue; 1314 } 1315 /* 1316 * XXX Need to prevent that from being an alternative way 1317 * XXX to getting process information. 1318 */ 1319 if (kauth_authorize_generic(l->l_cred, 1320 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1321 mutex_exit(&fp->f_lock); 1322 continue; 1323 } 1324 if (buflen < sizeof(struct file)) { 1325 *oldlenp = where - start; 1326 mutex_exit(&fp->f_lock); 1327 error = ENOMEM; 1328 break; 1329 } 1330 memcpy(&fbuf, fp, sizeof(fbuf)); 1331 LIST_INSERT_AFTER(fp, dp, f_list); 1332 mutex_exit(&fp->f_lock); 1333 mutex_exit(&filelist_lock); 1334 error = dcopyout(l, &fbuf, where, sizeof(fbuf)); 1335 if (error) { 1336 mutex_enter(&filelist_lock); 1337 LIST_REMOVE(dp, f_list); 1338 break; 1339 } 1340 buflen -= sizeof(struct file); 1341 where += sizeof(struct file); 1342 mutex_enter(&filelist_lock); 1343 np = LIST_NEXT(dp, f_list); 1344 LIST_REMOVE(dp, f_list); 1345 } 1346 mutex_exit(&filelist_lock); 1347 *oldlenp = where - start; 1348 if (dp != NULL) 1349 fputdummy(dp); 1350 sysctl_relock(); 1351 return (error); 1352 } 1353 1354 /* 1355 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 1356 * former it merely checks the message buffer is set up. For the latter, 1357 * it also copies out the data if necessary. 1358 */ 1359 static int 1360 sysctl_msgbuf(SYSCTLFN_ARGS) 1361 { 1362 char *where = oldp; 1363 size_t len, maxlen; 1364 long beg, end; 1365 extern kmutex_t log_lock; 1366 int error; 1367 1368 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1369 msgbufenabled = 0; 1370 return (ENXIO); 1371 } 1372 1373 switch (rnode->sysctl_num) { 1374 case KERN_MSGBUFSIZE: { 1375 struct sysctlnode node = *rnode; 1376 int msg_bufs = (int)msgbufp->msg_bufs; 1377 node.sysctl_data = &msg_bufs; 1378 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1379 } 1380 case KERN_MSGBUF: 1381 break; 1382 default: 1383 return (EOPNOTSUPP); 1384 } 1385 1386 if (newp != NULL) 1387 return (EPERM); 1388 1389 if (oldp == NULL) { 1390 /* always return full buffer size */ 1391 *oldlenp = msgbufp->msg_bufs; 1392 return (0); 1393 } 1394 1395 sysctl_unlock(); 1396 1397 /* 1398 * First, copy from the write pointer to the end of 1399 * message buffer. 1400 */ 1401 error = 0; 1402 mutex_spin_enter(&log_lock); 1403 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1404 beg = msgbufp->msg_bufx; 1405 end = msgbufp->msg_bufs; 1406 mutex_spin_exit(&log_lock); 1407 1408 while (maxlen > 0) { 1409 len = MIN(end - beg, maxlen); 1410 if (len == 0) 1411 break; 1412 /* XXX unlocked, but hardly matters. */ 1413 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1414 if (error) 1415 break; 1416 where += len; 1417 maxlen -= len; 1418 1419 /* 1420 * ... then, copy from the beginning of message buffer to 1421 * the write pointer. 1422 */ 1423 beg = 0; 1424 end = msgbufp->msg_bufx; 1425 } 1426 1427 sysctl_relock(); 1428 return (error); 1429 } 1430 1431 /* 1432 * sysctl helper routine for kern.defcorename. In the case of a new 1433 * string being assigned, check that it's not a zero-length string. 1434 * (XXX the check in -current doesn't work, but do we really care?) 1435 */ 1436 static int 1437 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1438 { 1439 int error; 1440 char *newcorename; 1441 struct sysctlnode node; 1442 1443 newcorename = PNBUF_GET(); 1444 node = *rnode; 1445 node.sysctl_data = &newcorename[0]; 1446 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1447 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1448 if (error || newp == NULL) { 1449 goto done; 1450 } 1451 1452 /* 1453 * when sysctl_lookup() deals with a string, it's guaranteed 1454 * to come back nul terminated. So there. :) 1455 */ 1456 if (strlen(newcorename) == 0) { 1457 error = EINVAL; 1458 } else { 1459 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1460 error = 0; 1461 } 1462 done: 1463 PNBUF_PUT(newcorename); 1464 return error; 1465 } 1466 1467 /* 1468 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1469 * across all cpus. 1470 */ 1471 static int 1472 sysctl_kern_cptime(SYSCTLFN_ARGS) 1473 { 1474 struct sysctlnode node = *rnode; 1475 uint64_t *cp_time = NULL; 1476 int error, n = ncpu, i; 1477 struct cpu_info *ci; 1478 CPU_INFO_ITERATOR cii; 1479 1480 /* 1481 * if you specifically pass a buffer that is the size of the 1482 * sum, or if you are probing for the size, you get the "sum" 1483 * of cp_time (and the size thereof) across all processors. 1484 * 1485 * alternately, you can pass an additional mib number and get 1486 * cp_time for that particular processor. 1487 */ 1488 switch (namelen) { 1489 case 0: 1490 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1491 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1492 n = -1; /* SUM */ 1493 } 1494 else { 1495 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1496 n = -2; /* ALL */ 1497 } 1498 break; 1499 case 1: 1500 if (name[0] < 0 || name[0] >= n) 1501 return (ENOENT); /* ENOSUCHPROCESSOR */ 1502 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1503 n = name[0]; 1504 /* 1505 * adjust these so that sysctl_lookup() will be happy 1506 */ 1507 name++; 1508 namelen--; 1509 break; 1510 default: 1511 return (EINVAL); 1512 } 1513 1514 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); 1515 if (cp_time == NULL) 1516 return (ENOMEM); 1517 node.sysctl_data = cp_time; 1518 memset(cp_time, 0, node.sysctl_size); 1519 1520 for (CPU_INFO_FOREACH(cii, ci)) { 1521 if (n <= 0) { 1522 for (i = 0; i < CPUSTATES; i++) { 1523 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1524 } 1525 } 1526 /* 1527 * if a specific processor was requested and we just 1528 * did it, we're done here 1529 */ 1530 if (n == 0) 1531 break; 1532 /* 1533 * if doing "all", skip to next cp_time set for next processor 1534 */ 1535 if (n == -2) 1536 cp_time += CPUSTATES; 1537 /* 1538 * if we're doing a specific processor, we're one 1539 * processor closer 1540 */ 1541 if (n > 0) 1542 n--; 1543 } 1544 1545 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1546 kmem_free(node.sysctl_data, node.sysctl_size); 1547 return (error); 1548 } 1549 1550 #if NPTY > 0 1551 /* 1552 * sysctl helper routine for kern.maxptys. Ensures that any new value 1553 * is acceptable to the pty subsystem. 1554 */ 1555 static int 1556 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1557 { 1558 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1559 int error, xmax; 1560 struct sysctlnode node; 1561 1562 /* get current value of maxptys */ 1563 xmax = pty_maxptys(0, 0); 1564 1565 node = *rnode; 1566 node.sysctl_data = &xmax; 1567 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1568 if (error || newp == NULL) 1569 return (error); 1570 1571 if (xmax != pty_maxptys(xmax, 1)) 1572 return (EINVAL); 1573 1574 return (0); 1575 } 1576 #endif /* NPTY > 0 */ 1577 1578 /* 1579 * sysctl helper routine for kern.sbmax. Basically just ensures that 1580 * any new value is not too small. 1581 */ 1582 static int 1583 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1584 { 1585 int error, new_sbmax; 1586 struct sysctlnode node; 1587 1588 new_sbmax = sb_max; 1589 node = *rnode; 1590 node.sysctl_data = &new_sbmax; 1591 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1592 if (error || newp == NULL) 1593 return (error); 1594 1595 KERNEL_LOCK(1, NULL); 1596 error = sb_max_set(new_sbmax); 1597 KERNEL_UNLOCK_ONE(NULL); 1598 1599 return (error); 1600 } 1601 1602 /* 1603 * sysctl helper routine for kern.urandom node. Picks a random number 1604 * for you. 1605 */ 1606 static int 1607 sysctl_kern_urnd(SYSCTLFN_ARGS) 1608 { 1609 #if NRND > 0 1610 int v, rv; 1611 1612 KERNEL_LOCK(1, NULL); 1613 rv = rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY); 1614 KERNEL_UNLOCK_ONE(NULL); 1615 if (rv == sizeof(v)) { 1616 struct sysctlnode node = *rnode; 1617 node.sysctl_data = &v; 1618 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1619 } 1620 else 1621 return (EIO); /*XXX*/ 1622 #else 1623 return (EOPNOTSUPP); 1624 #endif 1625 } 1626 1627 /* 1628 * sysctl helper routine for kern.arandom node. Picks a random number 1629 * for you. 1630 */ 1631 static int 1632 sysctl_kern_arnd(SYSCTLFN_ARGS) 1633 { 1634 #if NRND > 0 1635 int error; 1636 void *v; 1637 struct sysctlnode node = *rnode; 1638 1639 if (*oldlenp == 0) 1640 return 0; 1641 if (*oldlenp > 8192) 1642 return E2BIG; 1643 1644 v = kmem_alloc(*oldlenp, KM_SLEEP); 1645 arc4randbytes(v, *oldlenp); 1646 node.sysctl_data = v; 1647 node.sysctl_size = *oldlenp; 1648 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1649 kmem_free(v, *oldlenp); 1650 return error; 1651 #else 1652 return (EOPNOTSUPP); 1653 #endif 1654 } 1655 /* 1656 * sysctl helper routine to do kern.lwp.* work. 1657 */ 1658 static int 1659 sysctl_kern_lwp(SYSCTLFN_ARGS) 1660 { 1661 struct kinfo_lwp klwp; 1662 struct proc *p; 1663 struct lwp *l2, *l3; 1664 char *where, *dp; 1665 int pid, elem_size, elem_count; 1666 int buflen, needed, error; 1667 bool gotit; 1668 1669 if (namelen == 1 && name[0] == CTL_QUERY) 1670 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1671 1672 dp = where = oldp; 1673 buflen = where != NULL ? *oldlenp : 0; 1674 error = needed = 0; 1675 1676 if (newp != NULL || namelen != 3) 1677 return (EINVAL); 1678 pid = name[0]; 1679 elem_size = name[1]; 1680 elem_count = name[2]; 1681 1682 sysctl_unlock(); 1683 if (pid == -1) { 1684 mutex_enter(&proclist_lock); 1685 LIST_FOREACH(p, &allproc, p_list) { 1686 /* Grab a hold on the process. */ 1687 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 1688 continue; 1689 } 1690 mutex_exit(&proclist_lock); 1691 1692 mutex_enter(&p->p_smutex); 1693 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1694 if (buflen >= elem_size && elem_count > 0) { 1695 lwp_lock(l2); 1696 fill_lwp(l2, &klwp); 1697 lwp_unlock(l2); 1698 mutex_exit(&p->p_smutex); 1699 1700 /* 1701 * Copy out elem_size, but not 1702 * larger than the size of a 1703 * struct kinfo_proc2. 1704 */ 1705 error = dcopyout(l, &klwp, dp, 1706 min(sizeof(klwp), elem_size)); 1707 if (error) { 1708 rw_exit(&p->p_reflock); 1709 goto cleanup; 1710 } 1711 mutex_enter(&p->p_smutex); 1712 LIST_FOREACH(l3, &p->p_lwps, 1713 l_sibling) { 1714 if (l2 == l3) 1715 break; 1716 } 1717 if (l3 == NULL) { 1718 mutex_exit(&p->p_smutex); 1719 rw_exit(&p->p_reflock); 1720 error = EAGAIN; 1721 goto cleanup; 1722 } 1723 dp += elem_size; 1724 buflen -= elem_size; 1725 elem_count--; 1726 } 1727 needed += elem_size; 1728 } 1729 mutex_exit(&p->p_smutex); 1730 1731 /* Drop reference to process. */ 1732 mutex_enter(&proclist_lock); 1733 rw_exit(&p->p_reflock); 1734 } 1735 mutex_exit(&proclist_lock); 1736 } else { 1737 mutex_enter(&proclist_lock); 1738 p = p_find(pid, PFIND_LOCKED); 1739 if (p == NULL) { 1740 error = ESRCH; 1741 mutex_exit(&proclist_lock); 1742 goto cleanup; 1743 } 1744 /* Grab a hold on the process. */ 1745 gotit = rw_tryenter(&p->p_reflock, RW_READER); 1746 mutex_exit(&proclist_lock); 1747 if (!gotit) { 1748 error = ESRCH; 1749 goto cleanup; 1750 } 1751 1752 mutex_enter(&p->p_smutex); 1753 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1754 if (buflen >= elem_size && elem_count > 0) { 1755 lwp_lock(l2); 1756 fill_lwp(l2, &klwp); 1757 lwp_unlock(l2); 1758 mutex_exit(&p->p_smutex); 1759 /* 1760 * Copy out elem_size, but not larger than 1761 * the size of a struct kinfo_proc2. 1762 */ 1763 error = dcopyout(l, &klwp, dp, 1764 min(sizeof(klwp), elem_size)); 1765 if (error) { 1766 rw_exit(&p->p_reflock); 1767 goto cleanup; 1768 } 1769 mutex_enter(&p->p_smutex); 1770 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1771 if (l2 == l3) 1772 break; 1773 } 1774 if (l3 == NULL) { 1775 mutex_exit(&p->p_smutex); 1776 rw_exit(&p->p_reflock); 1777 error = EAGAIN; 1778 goto cleanup; 1779 } 1780 dp += elem_size; 1781 buflen -= elem_size; 1782 elem_count--; 1783 } 1784 needed += elem_size; 1785 } 1786 mutex_exit(&p->p_smutex); 1787 1788 /* Drop reference to process. */ 1789 rw_exit(&p->p_reflock); 1790 } 1791 1792 if (where != NULL) { 1793 *oldlenp = dp - where; 1794 if (needed > *oldlenp) { 1795 sysctl_relock(); 1796 return (ENOMEM); 1797 } 1798 } else { 1799 needed += KERN_LWPSLOP; 1800 *oldlenp = needed; 1801 } 1802 error = 0; 1803 cleanup: 1804 sysctl_relock(); 1805 return (error); 1806 } 1807 1808 /* 1809 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1810 * given value is not too large or two small, and is at least one 1811 * timer tick if not zero. 1812 */ 1813 static int 1814 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1815 { 1816 /* userland sees value in ms, internally is in ticks */ 1817 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1818 int error, timo, lsleep; 1819 struct sysctlnode node; 1820 1821 lsleep = forkfsleep * 1000 / hz; 1822 node = *rnode; 1823 node.sysctl_data = &lsleep; 1824 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1825 if (error || newp == NULL) 1826 return (error); 1827 1828 /* refuse negative values, and overly 'long time' */ 1829 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1830 return (EINVAL); 1831 1832 timo = mstohz(lsleep); 1833 1834 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1835 if (lsleep != 0 && timo == 0) 1836 forkfsleep = 1; 1837 else 1838 forkfsleep = timo; 1839 1840 return (0); 1841 } 1842 1843 /* 1844 * sysctl helper routine for kern.root_partition 1845 */ 1846 static int 1847 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1848 { 1849 int rootpart = DISKPART(rootdev); 1850 struct sysctlnode node = *rnode; 1851 1852 node.sysctl_data = &rootpart; 1853 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1854 } 1855 1856 /* 1857 * sysctl helper function for kern.drivers 1858 */ 1859 static int 1860 sysctl_kern_drivers(SYSCTLFN_ARGS) 1861 { 1862 int error; 1863 size_t buflen; 1864 struct kinfo_drivers kd; 1865 char *start, *where; 1866 const char *dname; 1867 int i; 1868 extern struct devsw_conv *devsw_conv; 1869 extern int max_devsw_convs; 1870 extern kmutex_t devsw_lock; 1871 1872 if (newp != NULL || namelen != 0) 1873 return (EINVAL); 1874 1875 start = where = oldp; 1876 buflen = *oldlenp; 1877 if (where == NULL) { 1878 *oldlenp = max_devsw_convs * sizeof kd; 1879 return 0; 1880 } 1881 1882 /* 1883 * An array of kinfo_drivers structures 1884 */ 1885 error = 0; 1886 sysctl_unlock(); 1887 mutex_enter(&devsw_lock); 1888 for (i = 0; i < max_devsw_convs; i++) { 1889 dname = devsw_conv[i].d_name; 1890 if (dname == NULL) 1891 continue; 1892 if (buflen < sizeof kd) { 1893 error = ENOMEM; 1894 break; 1895 } 1896 memset(&kd, 0, sizeof(kd)); 1897 kd.d_bmajor = devsw_conv[i].d_bmajor; 1898 kd.d_cmajor = devsw_conv[i].d_cmajor; 1899 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1900 mutex_exit(&devsw_lock); 1901 error = dcopyout(l, &kd, where, sizeof kd); 1902 mutex_enter(&devsw_lock); 1903 if (error != 0) 1904 break; 1905 buflen -= sizeof kd; 1906 where += sizeof kd; 1907 } 1908 mutex_exit(&devsw_lock); 1909 sysctl_relock(); 1910 *oldlenp = where - start; 1911 return error; 1912 } 1913 1914 /* 1915 * sysctl helper function for kern.file2 1916 */ 1917 static int 1918 sysctl_kern_file2(SYSCTLFN_ARGS) 1919 { 1920 struct proc *p; 1921 struct file *fp, *tp, *np; 1922 struct filedesc *fd; 1923 struct kinfo_file kf; 1924 char *dp; 1925 u_int i, op; 1926 size_t len, needed, elem_size, out_size; 1927 int error, arg, elem_count; 1928 fdfile_t *ff; 1929 1930 if (namelen == 1 && name[0] == CTL_QUERY) 1931 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1932 1933 if (namelen != 4) 1934 return (EINVAL); 1935 1936 error = 0; 1937 dp = oldp; 1938 len = (oldp != NULL) ? *oldlenp : 0; 1939 op = name[0]; 1940 arg = name[1]; 1941 elem_size = name[2]; 1942 elem_count = name[3]; 1943 out_size = MIN(sizeof(kf), elem_size); 1944 needed = 0; 1945 1946 if (elem_size < 1 || elem_count < 0) 1947 return (EINVAL); 1948 1949 switch (op) { 1950 case KERN_FILE_BYFILE: 1951 /* 1952 * doesn't use arg so it must be zero 1953 */ 1954 if (arg != 0) 1955 return (EINVAL); 1956 sysctl_unlock(); 1957 /* 1958 * allocate dummy file descriptor to make position in list 1959 */ 1960 if ((tp = fgetdummy()) == NULL) { 1961 sysctl_relock(); 1962 return ENOMEM; 1963 } 1964 mutex_enter(&filelist_lock); 1965 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1966 np = LIST_NEXT(fp, f_list); 1967 mutex_enter(&fp->f_lock); 1968 if (fp->f_count == 0) { 1969 mutex_exit(&fp->f_lock); 1970 continue; 1971 } 1972 /* 1973 * XXX Need to prevent that from being an alternative 1974 * XXX way for getting process information. 1975 */ 1976 if (kauth_authorize_generic(l->l_cred, 1977 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1978 mutex_exit(&fp->f_lock); 1979 continue; 1980 } 1981 if (len >= elem_size && elem_count > 0) { 1982 fill_file(&kf, fp, NULL, 0, 0); 1983 LIST_INSERT_AFTER(fp, tp, f_list); 1984 mutex_exit(&fp->f_lock); 1985 mutex_exit(&filelist_lock); 1986 error = dcopyout(l, &kf, dp, out_size); 1987 mutex_enter(&filelist_lock); 1988 np = LIST_NEXT(tp, f_list); 1989 LIST_REMOVE(tp, f_list); 1990 if (error) { 1991 break; 1992 } 1993 dp += elem_size; 1994 len -= elem_size; 1995 } else { 1996 mutex_exit(&fp->f_lock); 1997 } 1998 if (elem_count > 0) { 1999 needed += elem_size; 2000 if (elem_count != INT_MAX) 2001 elem_count--; 2002 } 2003 } 2004 mutex_exit(&filelist_lock); 2005 fputdummy(tp); 2006 sysctl_relock(); 2007 break; 2008 case KERN_FILE_BYPID: 2009 if (arg < -1) 2010 /* -1 means all processes */ 2011 return (EINVAL); 2012 sysctl_unlock(); 2013 mutex_enter(&proclist_lock); 2014 LIST_FOREACH(p, &allproc, p_list) { 2015 if (p->p_stat == SIDL) { 2016 /* skip embryonic processes */ 2017 continue; 2018 } 2019 if (arg > 0 && p->p_pid != arg) { 2020 /* pick only the one we want */ 2021 /* XXX want 0 to mean "kernel files" */ 2022 continue; 2023 } 2024 mutex_enter(&p->p_mutex); 2025 error = kauth_authorize_process(l->l_cred, 2026 KAUTH_PROCESS_CANSEE, p, 2027 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_OPENFILES), 2028 NULL, NULL); 2029 mutex_exit(&p->p_mutex); 2030 if (error != 0) { 2031 continue; 2032 } 2033 2034 /* 2035 * Grab a hold on the process. 2036 */ 2037 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 2038 continue; 2039 } 2040 mutex_exit(&proclist_lock); 2041 2042 /* XXX Do we need to check permission per file? */ 2043 fd = p->p_fd; 2044 mutex_enter(&fd->fd_lock); 2045 for (i = 0; i < fd->fd_nfiles; i++) { 2046 if ((ff = fd->fd_ofiles[i]) == NULL) { 2047 continue; 2048 } 2049 mutex_enter(&ff->ff_lock); 2050 if ((fp = ff->ff_file) == NULL) { 2051 mutex_exit(&ff->ff_lock); 2052 continue; 2053 } 2054 if (len >= elem_size && elem_count > 0) { 2055 fill_file(&kf, fp, ff, i, p->p_pid); 2056 mutex_exit(&fp->f_lock); 2057 mutex_exit(&ff->ff_lock); 2058 mutex_exit(&fd->fd_lock); 2059 error = dcopyout(l, &kf, dp, out_size); 2060 mutex_enter(&fd->fd_lock); 2061 if (error) 2062 break; 2063 dp += elem_size; 2064 len -= elem_size; 2065 } else { 2066 mutex_exit(&fp->f_lock); 2067 mutex_exit(&ff->ff_lock); 2068 } 2069 if (elem_count > 0) { 2070 needed += elem_size; 2071 if (elem_count != INT_MAX) 2072 elem_count--; 2073 } 2074 } 2075 mutex_exit(&fd->fd_lock); 2076 2077 /* 2078 * Release reference to process. 2079 */ 2080 mutex_enter(&proclist_lock); 2081 rw_exit(&p->p_reflock); 2082 } 2083 mutex_exit(&proclist_lock); 2084 sysctl_relock(); 2085 break; 2086 default: 2087 return (EINVAL); 2088 } 2089 2090 if (oldp == NULL) 2091 needed += KERN_FILESLOP * elem_size; 2092 *oldlenp = needed; 2093 2094 return (error); 2095 } 2096 2097 static void 2098 fill_file(struct kinfo_file *kp, const file_t *fp, const fdfile_t *ff, 2099 int i, pid_t pid) 2100 { 2101 2102 memset(kp, 0, sizeof(*kp)); 2103 2104 kp->ki_fileaddr = PTRTOUINT64(fp); 2105 kp->ki_flag = fp->f_flag; 2106 kp->ki_iflags = fp->f_iflags; 2107 kp->ki_ftype = fp->f_type; 2108 kp->ki_count = fp->f_count; 2109 kp->ki_msgcount = fp->f_msgcount; 2110 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2111 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2112 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2113 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2114 kp->ki_foffset = fp->f_offset; 2115 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2116 2117 /* vnode information to glue this file to something */ 2118 if (fp->f_type == DTYPE_VNODE) { 2119 struct vnode *vp = (struct vnode *)fp->f_data; 2120 2121 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2122 kp->ki_vsize = vp->v_size; 2123 kp->ki_vtype = vp->v_type; 2124 kp->ki_vtag = vp->v_tag; 2125 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2126 } 2127 2128 /* process information when retrieved via KERN_FILE_BYPID */ 2129 if (ff != NULL) { 2130 kp->ki_pid = pid; 2131 kp->ki_fd = i; 2132 kp->ki_ofileflags = ff->ff_exclose; 2133 kp->ki_usecount = ff->ff_refcnt; 2134 } 2135 } 2136 2137 static int 2138 sysctl_doeproc(SYSCTLFN_ARGS) 2139 { 2140 struct eproc *eproc; 2141 struct kinfo_proc2 *kproc2; 2142 struct kinfo_proc *dp; 2143 struct proc *p; 2144 char *where, *dp2; 2145 int type, op, arg; 2146 u_int elem_size, elem_count; 2147 size_t buflen, needed; 2148 bool match; 2149 int error; 2150 2151 if (namelen == 1 && name[0] == CTL_QUERY) 2152 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2153 2154 dp = oldp; 2155 dp2 = where = oldp; 2156 buflen = where != NULL ? *oldlenp : 0; 2157 error = 0; 2158 needed = 0; 2159 type = rnode->sysctl_num; 2160 2161 if (type == KERN_PROC) { 2162 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2163 return (EINVAL); 2164 op = name[0]; 2165 if (op != KERN_PROC_ALL) 2166 arg = name[1]; 2167 else 2168 arg = 0; /* Quell compiler warning */ 2169 elem_size = elem_count = 0; /* Ditto */ 2170 } else { 2171 if (namelen != 4) 2172 return (EINVAL); 2173 op = name[0]; 2174 arg = name[1]; 2175 elem_size = name[2]; 2176 elem_count = name[3]; 2177 } 2178 2179 sysctl_unlock(); 2180 2181 if (type == KERN_PROC) { 2182 eproc = kmem_alloc(sizeof(*eproc), KM_SLEEP); 2183 kproc2 = NULL; 2184 } else { 2185 eproc = NULL; 2186 kproc2 = kmem_alloc(sizeof(*kproc2), KM_SLEEP); 2187 } 2188 2189 mutex_enter(&proclist_lock); 2190 LIST_FOREACH(p, &allproc, p_list) { 2191 /* 2192 * Skip embryonic processes. 2193 */ 2194 if (p->p_stat == SIDL) 2195 continue; 2196 2197 mutex_enter(&p->p_mutex); 2198 error = kauth_authorize_process(l->l_cred, 2199 KAUTH_PROCESS_CANSEE, p, 2200 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENTRY), NULL, NULL); 2201 if (error != 0) { 2202 mutex_exit(&p->p_mutex); 2203 continue; 2204 } 2205 2206 /* 2207 * TODO - make more efficient (see notes below). 2208 * do by session. 2209 */ 2210 switch (op) { 2211 case KERN_PROC_PID: 2212 /* could do this with just a lookup */ 2213 match = (p->p_pid == (pid_t)arg); 2214 break; 2215 2216 case KERN_PROC_PGRP: 2217 /* could do this by traversing pgrp */ 2218 match = (p->p_pgrp->pg_id == (pid_t)arg); 2219 break; 2220 2221 case KERN_PROC_SESSION: 2222 match = (p->p_session->s_sid == (pid_t)arg); 2223 break; 2224 2225 case KERN_PROC_TTY: 2226 match = true; 2227 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2228 if ((p->p_lflag & PL_CONTROLT) == 0 || 2229 p->p_session->s_ttyp == NULL || 2230 p->p_session->s_ttyvp != NULL) { 2231 match = false; 2232 } 2233 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2234 p->p_session->s_ttyp == NULL) { 2235 if ((dev_t)arg != KERN_PROC_TTY_NODEV) { 2236 match = false; 2237 } 2238 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) { 2239 match = false; 2240 } 2241 break; 2242 2243 case KERN_PROC_UID: 2244 match = (kauth_cred_geteuid(p->p_cred) == (uid_t)arg); 2245 break; 2246 2247 case KERN_PROC_RUID: 2248 match = (kauth_cred_getuid(p->p_cred) == (uid_t)arg); 2249 break; 2250 2251 case KERN_PROC_GID: 2252 match = (kauth_cred_getegid(p->p_cred) == (uid_t)arg); 2253 break; 2254 2255 case KERN_PROC_RGID: 2256 match = (kauth_cred_getgid(p->p_cred) == (uid_t)arg); 2257 break; 2258 2259 case KERN_PROC_ALL: 2260 match = true; 2261 /* allow everything */ 2262 break; 2263 2264 default: 2265 error = EINVAL; 2266 mutex_exit(&p->p_mutex); 2267 goto cleanup; 2268 } 2269 if (!match) { 2270 mutex_exit(&p->p_mutex); 2271 continue; 2272 } 2273 2274 /* 2275 * Grab a hold on the process. 2276 */ 2277 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 2278 mutex_exit(&p->p_mutex); 2279 continue; 2280 } 2281 2282 if (type == KERN_PROC) { 2283 if (buflen >= sizeof(struct kinfo_proc)) { 2284 fill_eproc(p, eproc); 2285 mutex_exit(&p->p_mutex); 2286 mutex_exit(&proclist_lock); 2287 error = dcopyout(l, p, &dp->kp_proc, 2288 sizeof(struct proc)); 2289 mutex_enter(&proclist_lock); 2290 if (error) { 2291 rw_exit(&p->p_reflock); 2292 goto cleanup; 2293 } 2294 error = dcopyout(l, eproc, &dp->kp_eproc, 2295 sizeof(*eproc)); 2296 if (error) { 2297 rw_exit(&p->p_reflock); 2298 goto cleanup; 2299 } 2300 dp++; 2301 buflen -= sizeof(struct kinfo_proc); 2302 } else { 2303 mutex_exit(&p->p_mutex); 2304 } 2305 needed += sizeof(struct kinfo_proc); 2306 } else { /* KERN_PROC2 */ 2307 if (buflen >= elem_size && elem_count > 0) { 2308 fill_kproc2(p, kproc2); 2309 mutex_exit(&p->p_mutex); 2310 mutex_exit(&proclist_lock); 2311 /* 2312 * Copy out elem_size, but not larger than 2313 * the size of a struct kinfo_proc2. 2314 */ 2315 error = dcopyout(l, kproc2, dp2, 2316 min(sizeof(*kproc2), elem_size)); 2317 mutex_enter(&proclist_lock); 2318 if (error) { 2319 rw_exit(&p->p_reflock); 2320 goto cleanup; 2321 } 2322 dp2 += elem_size; 2323 buflen -= elem_size; 2324 elem_count--; 2325 } else { 2326 mutex_exit(&p->p_mutex); 2327 } 2328 needed += elem_size; 2329 } 2330 2331 /* 2332 * Release reference to process. 2333 */ 2334 rw_exit(&p->p_reflock); 2335 } 2336 mutex_exit(&proclist_lock); 2337 2338 if (where != NULL) { 2339 if (type == KERN_PROC) 2340 *oldlenp = (char *)dp - where; 2341 else 2342 *oldlenp = dp2 - where; 2343 if (needed > *oldlenp) { 2344 error = ENOMEM; 2345 goto out; 2346 } 2347 } else { 2348 needed += KERN_PROCSLOP; 2349 *oldlenp = needed; 2350 } 2351 if (kproc2) 2352 kmem_free(kproc2, sizeof(*kproc2)); 2353 if (eproc) 2354 kmem_free(eproc, sizeof(*eproc)); 2355 sysctl_relock(); 2356 return 0; 2357 cleanup: 2358 mutex_exit(&proclist_lock); 2359 out: 2360 if (kproc2) 2361 kmem_free(kproc2, sizeof(*kproc2)); 2362 if (eproc) 2363 kmem_free(eproc, sizeof(*eproc)); 2364 sysctl_relock(); 2365 return error; 2366 } 2367 2368 /* 2369 * sysctl helper routine for kern.proc_args pseudo-subtree. 2370 */ 2371 static int 2372 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2373 { 2374 struct ps_strings pss; 2375 struct proc *p; 2376 size_t len, i; 2377 struct uio auio; 2378 struct iovec aiov; 2379 pid_t pid; 2380 int nargv, type, error, argvlen; 2381 char *arg; 2382 char **argv = NULL; 2383 char *tmp; 2384 struct vmspace *vmspace; 2385 vaddr_t psstr_addr; 2386 vaddr_t offsetn; 2387 vaddr_t offsetv; 2388 2389 if (namelen == 1 && name[0] == CTL_QUERY) 2390 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2391 2392 if (newp != NULL || namelen != 2) 2393 return (EINVAL); 2394 pid = name[0]; 2395 type = name[1]; 2396 argv = NULL; 2397 argvlen = 0; 2398 2399 switch (type) { 2400 case KERN_PROC_ARGV: 2401 case KERN_PROC_NARGV: 2402 case KERN_PROC_ENV: 2403 case KERN_PROC_NENV: 2404 /* ok */ 2405 break; 2406 default: 2407 return (EINVAL); 2408 } 2409 2410 sysctl_unlock(); 2411 2412 /* check pid */ 2413 mutex_enter(&proclist_lock); 2414 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2415 error = EINVAL; 2416 goto out_locked; 2417 } 2418 mutex_enter(&p->p_mutex); 2419 2420 /* Check permission. */ 2421 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2422 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2423 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ARGS), NULL, NULL); 2424 else if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) 2425 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2426 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENV), NULL, NULL); 2427 else 2428 error = EINVAL; /* XXXGCC */ 2429 if (error) { 2430 mutex_exit(&p->p_mutex); 2431 goto out_locked; 2432 } 2433 2434 if (oldp == NULL) { 2435 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2436 *oldlenp = sizeof (int); 2437 else 2438 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2439 error = 0; 2440 mutex_exit(&p->p_mutex); 2441 goto out_locked; 2442 } 2443 2444 /* 2445 * Zombies don't have a stack, so we can't read their psstrings. 2446 * System processes also don't have a user stack. 2447 */ 2448 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2449 error = EINVAL; 2450 mutex_exit(&p->p_mutex); 2451 goto out_locked; 2452 } 2453 2454 /* 2455 * Lock the process down in memory. 2456 */ 2457 psstr_addr = (vaddr_t)p->p_psstr; 2458 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2459 offsetn = p->p_psnargv; 2460 offsetv = p->p_psargv; 2461 } else { 2462 offsetn = p->p_psnenv; 2463 offsetv = p->p_psenv; 2464 } 2465 vmspace = p->p_vmspace; 2466 uvmspace_addref(vmspace); 2467 mutex_exit(&p->p_mutex); 2468 mutex_exit(&proclist_lock); 2469 2470 /* 2471 * Allocate a temporary buffer to hold the arguments. 2472 */ 2473 arg = kmem_alloc(PAGE_SIZE, KM_SLEEP); 2474 2475 /* 2476 * Read in the ps_strings structure. 2477 */ 2478 aiov.iov_base = &pss; 2479 aiov.iov_len = sizeof(pss); 2480 auio.uio_iov = &aiov; 2481 auio.uio_iovcnt = 1; 2482 auio.uio_offset = psstr_addr; 2483 auio.uio_resid = sizeof(pss); 2484 auio.uio_rw = UIO_READ; 2485 UIO_SETUP_SYSSPACE(&auio); 2486 error = uvm_io(&vmspace->vm_map, &auio); 2487 if (error) 2488 goto done; 2489 2490 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2491 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2492 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2493 *oldlenp = sizeof(nargv); 2494 goto done; 2495 } 2496 /* 2497 * Now read the address of the argument vector. 2498 */ 2499 switch (type) { 2500 case KERN_PROC_ARGV: 2501 /* FALLTHROUGH */ 2502 case KERN_PROC_ENV: 2503 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2504 break; 2505 default: 2506 error = EINVAL; 2507 goto done; 2508 } 2509 2510 #ifdef COMPAT_NETBSD32 2511 if (p->p_flag & PK_32) 2512 len = sizeof(netbsd32_charp) * nargv; 2513 else 2514 #endif 2515 len = sizeof(char *) * nargv; 2516 2517 if ((argvlen = len) != 0) 2518 argv = kmem_alloc(len, KM_SLEEP); 2519 2520 aiov.iov_base = argv; 2521 aiov.iov_len = len; 2522 auio.uio_iov = &aiov; 2523 auio.uio_iovcnt = 1; 2524 auio.uio_offset = (off_t)(unsigned long)tmp; 2525 auio.uio_resid = len; 2526 auio.uio_rw = UIO_READ; 2527 UIO_SETUP_SYSSPACE(&auio); 2528 error = uvm_io(&vmspace->vm_map, &auio); 2529 if (error) 2530 goto done; 2531 2532 /* 2533 * Now copy each string. 2534 */ 2535 len = 0; /* bytes written to user buffer */ 2536 for (i = 0; i < nargv; i++) { 2537 int finished = 0; 2538 vaddr_t base; 2539 size_t xlen; 2540 int j; 2541 2542 #ifdef COMPAT_NETBSD32 2543 if (p->p_flag & PK_32) { 2544 netbsd32_charp *argv32; 2545 2546 argv32 = (netbsd32_charp *)argv; 2547 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2548 } else 2549 #endif 2550 base = (vaddr_t)argv[i]; 2551 2552 /* 2553 * The program has messed around with its arguments, 2554 * possibly deleting some, and replacing them with 2555 * NULL's. Treat this as the last argument and not 2556 * a failure. 2557 */ 2558 if (base == 0) 2559 break; 2560 2561 while (!finished) { 2562 xlen = PAGE_SIZE - (base & PAGE_MASK); 2563 2564 aiov.iov_base = arg; 2565 aiov.iov_len = PAGE_SIZE; 2566 auio.uio_iov = &aiov; 2567 auio.uio_iovcnt = 1; 2568 auio.uio_offset = base; 2569 auio.uio_resid = xlen; 2570 auio.uio_rw = UIO_READ; 2571 UIO_SETUP_SYSSPACE(&auio); 2572 error = uvm_io(&vmspace->vm_map, &auio); 2573 if (error) 2574 goto done; 2575 2576 /* Look for the end of the string */ 2577 for (j = 0; j < xlen; j++) { 2578 if (arg[j] == '\0') { 2579 xlen = j + 1; 2580 finished = 1; 2581 break; 2582 } 2583 } 2584 2585 /* Check for user buffer overflow */ 2586 if (len + xlen > *oldlenp) { 2587 finished = 1; 2588 if (len > *oldlenp) 2589 xlen = 0; 2590 else 2591 xlen = *oldlenp - len; 2592 } 2593 2594 /* Copyout the page */ 2595 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2596 if (error) 2597 goto done; 2598 2599 len += xlen; 2600 base += xlen; 2601 } 2602 } 2603 *oldlenp = len; 2604 2605 done: 2606 if (argvlen != 0) 2607 kmem_free(argv, argvlen); 2608 uvmspace_free(vmspace); 2609 kmem_free(arg, PAGE_SIZE); 2610 sysctl_relock(); 2611 return error; 2612 2613 out_locked: 2614 mutex_exit(&proclist_lock); 2615 sysctl_relock(); 2616 return error; 2617 } 2618 2619 static int 2620 sysctl_security_setidcore(SYSCTLFN_ARGS) 2621 { 2622 int newsize, error; 2623 struct sysctlnode node; 2624 2625 node = *rnode; 2626 node.sysctl_data = &newsize; 2627 newsize = *(int *)rnode->sysctl_data; 2628 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2629 if (error || newp == NULL) 2630 return error; 2631 2632 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2633 0, NULL, NULL, NULL)) 2634 return (EPERM); 2635 2636 *(int *)rnode->sysctl_data = newsize; 2637 2638 return 0; 2639 } 2640 2641 static int 2642 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2643 { 2644 int error; 2645 char *newsetidcorename; 2646 struct sysctlnode node; 2647 2648 newsetidcorename = PNBUF_GET(); 2649 node = *rnode; 2650 node.sysctl_data = newsetidcorename; 2651 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2652 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2653 if (error || newp == NULL) { 2654 goto out; 2655 } 2656 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2657 0, NULL, NULL, NULL)) { 2658 error = EPERM; 2659 goto out; 2660 } 2661 if (strlen(newsetidcorename) == 0) { 2662 error = EINVAL; 2663 goto out; 2664 } 2665 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2666 out: 2667 PNBUF_PUT(newsetidcorename); 2668 return error; 2669 } 2670 2671 /* 2672 * sysctl helper routine for kern.cp_id node. Maps cpus to their 2673 * cpuids. 2674 */ 2675 static int 2676 sysctl_kern_cpid(SYSCTLFN_ARGS) 2677 { 2678 struct sysctlnode node = *rnode; 2679 uint64_t *cp_id = NULL; 2680 int error, n = ncpu; 2681 struct cpu_info *ci; 2682 CPU_INFO_ITERATOR cii; 2683 2684 /* 2685 * Here you may either retrieve a single cpu id or the whole 2686 * set. The size you get back when probing depends on what 2687 * you ask for. 2688 */ 2689 switch (namelen) { 2690 case 0: 2691 node.sysctl_size = n * sizeof(uint64_t); 2692 n = -2; /* ALL */ 2693 break; 2694 case 1: 2695 if (name[0] < 0 || name[0] >= n) 2696 return (ENOENT); /* ENOSUCHPROCESSOR */ 2697 node.sysctl_size = sizeof(uint64_t); 2698 n = name[0]; 2699 /* 2700 * adjust these so that sysctl_lookup() will be happy 2701 */ 2702 name++; 2703 namelen--; 2704 break; 2705 default: 2706 return (EINVAL); 2707 } 2708 2709 cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP); 2710 if (cp_id == NULL) 2711 return (ENOMEM); 2712 node.sysctl_data = cp_id; 2713 memset(cp_id, 0, node.sysctl_size); 2714 2715 for (CPU_INFO_FOREACH(cii, ci)) { 2716 if (n <= 0) 2717 cp_id[0] = ci->ci_cpuid; 2718 /* 2719 * if a specific processor was requested and we just 2720 * did it, we're done here 2721 */ 2722 if (n == 0) 2723 break; 2724 /* 2725 * if doing "all", skip to next cp_id slot for next processor 2726 */ 2727 if (n == -2) 2728 cp_id++; 2729 /* 2730 * if we're doing a specific processor, we're one 2731 * processor closer 2732 */ 2733 if (n > 0) 2734 n--; 2735 } 2736 2737 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2738 kmem_free(node.sysctl_data, node.sysctl_size); 2739 return (error); 2740 } 2741 2742 /* 2743 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 2744 * calculate on the fly taking into account integer overflow and the 2745 * current wired count. 2746 */ 2747 static int 2748 sysctl_hw_usermem(SYSCTLFN_ARGS) 2749 { 2750 u_int ui; 2751 u_quad_t uq; 2752 struct sysctlnode node; 2753 2754 node = *rnode; 2755 switch (rnode->sysctl_num) { 2756 case HW_USERMEM: 2757 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2758 ui = UINT_MAX; 2759 else 2760 ui *= PAGE_SIZE; 2761 node.sysctl_data = &ui; 2762 break; 2763 case HW_USERMEM64: 2764 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2765 node.sysctl_data = &uq; 2766 break; 2767 default: 2768 return (EINVAL); 2769 } 2770 2771 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2772 } 2773 2774 /* 2775 * sysctl helper routine for kern.cnmagic node. Pulls the old value 2776 * out, encoded, and stuffs the new value in for decoding. 2777 */ 2778 static int 2779 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2780 { 2781 char magic[CNS_LEN]; 2782 int error; 2783 struct sysctlnode node; 2784 2785 if (oldp) 2786 cn_get_magic(magic, CNS_LEN); 2787 node = *rnode; 2788 node.sysctl_data = &magic[0]; 2789 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2790 if (error || newp == NULL) 2791 return (error); 2792 2793 return (cn_set_magic(magic)); 2794 } 2795 2796 /* 2797 * ******************************************************************** 2798 * section 3: public helper routines that are used for more than one 2799 * node 2800 * ******************************************************************** 2801 */ 2802 2803 /* 2804 * sysctl helper routine for the kern.root_device node and some ports' 2805 * machdep.root_device nodes. 2806 */ 2807 int 2808 sysctl_root_device(SYSCTLFN_ARGS) 2809 { 2810 struct sysctlnode node; 2811 2812 node = *rnode; 2813 node.sysctl_data = root_device->dv_xname; 2814 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2815 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2816 } 2817 2818 /* 2819 * sysctl helper routine for kern.consdev, dependent on the current 2820 * state of the console. Also used for machdep.console_device on some 2821 * ports. 2822 */ 2823 int 2824 sysctl_consdev(SYSCTLFN_ARGS) 2825 { 2826 dev_t consdev; 2827 struct sysctlnode node; 2828 2829 if (cn_tab != NULL) 2830 consdev = cn_tab->cn_dev; 2831 else 2832 consdev = NODEV; 2833 node = *rnode; 2834 node.sysctl_data = &consdev; 2835 node.sysctl_size = sizeof(consdev); 2836 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2837 } 2838 2839 /* 2840 * ******************************************************************** 2841 * section 4: support for some helpers 2842 * ******************************************************************** 2843 */ 2844 2845 /* 2846 * Fill in a kinfo_proc2 structure for the specified process. 2847 */ 2848 static void 2849 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2850 { 2851 struct tty *tp; 2852 struct lwp *l, *l2; 2853 struct timeval ut, st, rt; 2854 sigset_t ss1, ss2; 2855 struct rusage ru; 2856 2857 KASSERT(mutex_owned(&proclist_lock)); 2858 KASSERT(mutex_owned(&p->p_mutex)); 2859 2860 memset(ki, 0, sizeof(*ki)); 2861 2862 ki->p_paddr = PTRTOUINT64(p); 2863 ki->p_fd = PTRTOUINT64(p->p_fd); 2864 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2865 ki->p_stats = PTRTOUINT64(p->p_stats); 2866 ki->p_limit = PTRTOUINT64(p->p_limit); 2867 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2868 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2869 ki->p_sess = PTRTOUINT64(p->p_session); 2870 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2871 ki->p_ru = PTRTOUINT64(&p->p_stats->p_ru); 2872 2873 ki->p_eflag = 0; 2874 ki->p_exitsig = p->p_exitsig; 2875 2876 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2877 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2878 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2879 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2880 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2881 2882 ki->p_pid = p->p_pid; 2883 if (p->p_pptr) 2884 ki->p_ppid = p->p_pptr->p_pid; 2885 else 2886 ki->p_ppid = 0; 2887 ki->p_sid = p->p_session->s_sid; 2888 ki->p__pgid = p->p_pgrp->pg_id; 2889 2890 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2891 2892 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2893 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2894 ki->p_gid = kauth_cred_getegid(p->p_cred); 2895 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2896 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2897 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2898 2899 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2900 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2901 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0])), 2902 UIO_SYSSPACE); 2903 2904 ki->p_jobc = p->p_pgrp->pg_jobc; 2905 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2906 ki->p_tdev = tp->t_dev; 2907 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2908 ki->p_tsess = PTRTOUINT64(tp->t_session); 2909 } else { 2910 ki->p_tdev = NODEV; 2911 } 2912 2913 mutex_enter(&p->p_smutex); 2914 2915 ki->p_uticks = p->p_uticks; 2916 ki->p_sticks = p->p_sticks; 2917 ki->p_iticks = p->p_iticks; 2918 2919 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2920 ki->p_traceflag = p->p_traceflag; 2921 2922 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2923 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2924 2925 ki->p_cpticks = 0; 2926 ki->p_pctcpu = p->p_pctcpu; 2927 ki->p_estcpu = 0; 2928 ss1 = p->p_sigpend.sp_set; 2929 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2930 /* This is hardly correct, but... */ 2931 sigplusset(&l->l_sigpend.sp_set, &ss1); 2932 sigplusset(&l->l_sigmask, &ss2); 2933 ki->p_cpticks += l->l_cpticks; 2934 ki->p_pctcpu += l->l_pctcpu; 2935 ki->p_estcpu += l->l_estcpu; 2936 } 2937 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2938 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2939 2940 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2941 ki->p_realstat = p->p_stat; 2942 ki->p_nice = p->p_nice; 2943 2944 ki->p_xstat = p->p_xstat; 2945 ki->p_acflag = p->p_acflag; 2946 2947 strncpy(ki->p_comm, p->p_comm, 2948 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2949 2950 strncpy(ki->p_login, p->p_session->s_login, 2951 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2952 2953 ki->p_nlwps = p->p_nlwps; 2954 ki->p_realflag = ki->p_flag; 2955 2956 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2957 ki->p_vm_rssize = 0; 2958 ki->p_vm_tsize = 0; 2959 ki->p_vm_dsize = 0; 2960 ki->p_vm_ssize = 0; 2961 ki->p_nrlwps = 0; 2962 l = NULL; 2963 } else { 2964 struct vmspace *vm = p->p_vmspace; 2965 int tmp; 2966 2967 ki->p_vm_rssize = vm_resident_count(vm); 2968 ki->p_vm_tsize = vm->vm_tsize; 2969 ki->p_vm_dsize = vm->vm_dsize; 2970 ki->p_vm_ssize = vm->vm_ssize; 2971 2972 /* Pick a "representative" LWP */ 2973 l = proc_representative_lwp(p, &tmp, 1); 2974 lwp_lock(l); 2975 ki->p_nrlwps = tmp; 2976 ki->p_forw = 0; 2977 ki->p_back = 0; 2978 ki->p_addr = PTRTOUINT64(l->l_addr); 2979 ki->p_stat = l->l_stat; 2980 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2981 ki->p_swtime = l->l_swtime; 2982 ki->p_slptime = l->l_slptime; 2983 if (l->l_stat == LSONPROC) 2984 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2985 else 2986 ki->p_schedflags = 0; 2987 ki->p_holdcnt = l->l_holdcnt; 2988 ki->p_priority = lwp_eprio(l); 2989 ki->p_usrpri = l->l_priority; 2990 if (l->l_wmesg) 2991 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2992 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2993 lwp_unlock(l); 2994 } 2995 if (p->p_session->s_ttyvp) 2996 ki->p_eflag |= EPROC_CTTY; 2997 if (SESS_LEADER(p)) 2998 ki->p_eflag |= EPROC_SLEADER; 2999 3000 /* XXX Is this double check necessary? */ 3001 if (P_ZOMBIE(p)) { 3002 ki->p_uvalid = 0; 3003 ki->p_rtime_sec = 0; 3004 ki->p_rtime_usec = 0; 3005 } else { 3006 ki->p_uvalid = 1; 3007 3008 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 3009 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 3010 3011 calcru(p, &ut, &st, NULL, &rt); 3012 ki->p_rtime_sec = rt.tv_sec; 3013 ki->p_rtime_usec = rt.tv_usec; 3014 ki->p_uutime_sec = ut.tv_sec; 3015 ki->p_uutime_usec = ut.tv_usec; 3016 ki->p_ustime_sec = st.tv_sec; 3017 ki->p_ustime_usec = st.tv_usec; 3018 3019 memcpy(&ru, &p->p_stats->p_ru, sizeof(ru)); 3020 ki->p_uru_nvcsw = 0; 3021 ki->p_uru_nivcsw = 0; 3022 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 3023 ki->p_uru_nvcsw += (l->l_ncsw - l->l_nivcsw); 3024 ki->p_uru_nivcsw += l->l_nivcsw; 3025 ruadd(&ru, &l2->l_ru); 3026 } 3027 ki->p_uru_maxrss = ru.ru_maxrss; 3028 ki->p_uru_ixrss = ru.ru_ixrss; 3029 ki->p_uru_idrss = ru.ru_idrss; 3030 ki->p_uru_isrss = ru.ru_isrss; 3031 ki->p_uru_minflt = ru.ru_minflt; 3032 ki->p_uru_majflt = ru.ru_majflt; 3033 ki->p_uru_nswap = ru.ru_nswap; 3034 ki->p_uru_inblock = ru.ru_inblock; 3035 ki->p_uru_oublock = ru.ru_oublock; 3036 ki->p_uru_msgsnd = ru.ru_msgsnd; 3037 ki->p_uru_msgrcv = ru.ru_msgrcv; 3038 ki->p_uru_nsignals = ru.ru_nsignals; 3039 3040 timeradd(&p->p_stats->p_cru.ru_utime, 3041 &p->p_stats->p_cru.ru_stime, &ut); 3042 ki->p_uctime_sec = ut.tv_sec; 3043 ki->p_uctime_usec = ut.tv_usec; 3044 } 3045 if (l != NULL) 3046 ki->p_cpuid = l->l_cpu->ci_cpuid; 3047 3048 mutex_exit(&p->p_smutex); 3049 } 3050 3051 /* 3052 * Fill in a kinfo_lwp structure for the specified lwp. 3053 */ 3054 static void 3055 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3056 { 3057 struct proc *p = l->l_proc; 3058 struct timeval tv; 3059 3060 kl->l_forw = 0; 3061 kl->l_back = 0; 3062 kl->l_laddr = PTRTOUINT64(l); 3063 kl->l_addr = PTRTOUINT64(l->l_addr); 3064 kl->l_stat = l->l_stat; 3065 kl->l_lid = l->l_lid; 3066 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 3067 3068 kl->l_swtime = l->l_swtime; 3069 kl->l_slptime = l->l_slptime; 3070 if (l->l_stat == LSONPROC) 3071 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3072 else 3073 kl->l_schedflags = 0; 3074 kl->l_holdcnt = l->l_holdcnt; 3075 kl->l_priority = lwp_eprio(l); 3076 kl->l_usrpri = l->l_priority; 3077 if (l->l_wmesg) 3078 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3079 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3080 kl->l_cpuid = l->l_cpu->ci_cpuid; 3081 bintime2timeval(&l->l_rtime, &tv); 3082 kl->l_rtime_sec = tv.tv_sec; 3083 kl->l_rtime_usec = tv.tv_usec; 3084 kl->l_cpticks = l->l_cpticks; 3085 kl->l_pctcpu = l->l_pctcpu; 3086 kl->l_pid = p->p_pid; 3087 if (l->l_name == NULL) 3088 kl->l_name[0] = '\0'; 3089 else 3090 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 3091 } 3092 3093 /* 3094 * Fill in an eproc structure for the specified process. 3095 */ 3096 void 3097 fill_eproc(struct proc *p, struct eproc *ep) 3098 { 3099 struct tty *tp; 3100 struct lwp *l; 3101 3102 KASSERT(mutex_owned(&proclist_lock)); 3103 KASSERT(mutex_owned(&p->p_mutex)); 3104 3105 ep->e_paddr = p; 3106 ep->e_sess = p->p_session; 3107 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 3108 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 3109 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 3110 ep->e_vm.vm_rssize = 0; 3111 ep->e_vm.vm_tsize = 0; 3112 ep->e_vm.vm_dsize = 0; 3113 ep->e_vm.vm_ssize = 0; 3114 /* ep->e_vm.vm_pmap = XXX; */ 3115 } else { 3116 struct vmspace *vm = p->p_vmspace; 3117 3118 ep->e_vm.vm_rssize = vm_resident_count(vm); 3119 ep->e_vm.vm_tsize = vm->vm_tsize; 3120 ep->e_vm.vm_dsize = vm->vm_dsize; 3121 ep->e_vm.vm_ssize = vm->vm_ssize; 3122 3123 /* Pick a "representative" LWP */ 3124 mutex_enter(&p->p_smutex); 3125 l = proc_representative_lwp(p, NULL, 1); 3126 lwp_lock(l); 3127 if (l->l_wmesg) 3128 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3129 lwp_unlock(l); 3130 mutex_exit(&p->p_smutex); 3131 } 3132 if (p->p_pptr) 3133 ep->e_ppid = p->p_pptr->p_pid; 3134 else 3135 ep->e_ppid = 0; 3136 ep->e_pgid = p->p_pgrp->pg_id; 3137 ep->e_sid = ep->e_sess->s_sid; 3138 ep->e_jobc = p->p_pgrp->pg_jobc; 3139 if ((p->p_lflag & PL_CONTROLT) && 3140 (tp = ep->e_sess->s_ttyp)) { 3141 ep->e_tdev = tp->t_dev; 3142 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3143 ep->e_tsess = tp->t_session; 3144 } else 3145 ep->e_tdev = NODEV; 3146 3147 ep->e_xsize = ep->e_xrssize = 0; 3148 ep->e_xccount = ep->e_xswrss = 0; 3149 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3150 if (SESS_LEADER(p)) 3151 ep->e_flag |= EPROC_SLEADER; 3152 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3153 } 3154 3155 u_int 3156 sysctl_map_flags(const u_int *map, u_int word) 3157 { 3158 u_int rv; 3159 3160 for (rv = 0; *map != 0; map += 2) 3161 if ((word & map[0]) != 0) 3162 rv |= map[1]; 3163 3164 return rv; 3165 } 3166
Indexes created Mon Sep 22 05:09:51 GMT 2025