init_sysctl.c revision 1.118
1 /* $NetBSD: init_sysctl.c,v 1.118 2008/01/07 16:12:53 ad 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 1.118 2008/01/07 16:12:53 ad 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(l, kaddr, uaddr, len) 151 struct lwp *l; 152 const void *kaddr; 153 void *uaddr; 154 size_t len; 155 { 156 int error; 157 158 error = copyout(kaddr, uaddr, len); 159 ktrmibio(-1, UIO_READ, uaddr, len, error); 160 161 return error; 162 } 163 164 #ifdef DIAGNOSTIC 165 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 166 #endif 167 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 168 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 169 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 170 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 171 static int sysctl_setlen(SYSCTLFN_PROTO); 172 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 173 static int sysctl_kern_file(SYSCTLFN_PROTO); 174 static int sysctl_msgbuf(SYSCTLFN_PROTO); 175 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 176 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 177 #if NPTY > 0 178 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 179 #endif /* NPTY > 0 */ 180 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 181 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 182 static int sysctl_kern_arnd(SYSCTLFN_PROTO); 183 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 184 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 185 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 186 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 187 static int sysctl_kern_file2(SYSCTLFN_PROTO); 188 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 189 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 190 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 191 static int sysctl_doeproc(SYSCTLFN_PROTO); 192 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 193 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 194 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 195 196 static u_int sysctl_map_flags(const u_int *, u_int); 197 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 198 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 199 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 200 int); 201 202 /* 203 * ******************************************************************** 204 * section 1: setup routines 205 * ******************************************************************** 206 * These functions are stuffed into a link set for sysctl setup 207 * functions. They're never called or referenced from anywhere else. 208 * ******************************************************************** 209 */ 210 211 /* 212 * sets up the base nodes... 213 */ 214 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 215 { 216 217 sysctl_createv(clog, 0, NULL, NULL, 218 CTLFLAG_PERMANENT, 219 CTLTYPE_NODE, "kern", 220 SYSCTL_DESCR("High kernel"), 221 NULL, 0, NULL, 0, 222 CTL_KERN, CTL_EOL); 223 sysctl_createv(clog, 0, NULL, NULL, 224 CTLFLAG_PERMANENT, 225 CTLTYPE_NODE, "vm", 226 SYSCTL_DESCR("Virtual memory"), 227 NULL, 0, NULL, 0, 228 CTL_VM, CTL_EOL); 229 sysctl_createv(clog, 0, NULL, NULL, 230 CTLFLAG_PERMANENT, 231 CTLTYPE_NODE, "vfs", 232 SYSCTL_DESCR("Filesystem"), 233 NULL, 0, NULL, 0, 234 CTL_VFS, CTL_EOL); 235 sysctl_createv(clog, 0, NULL, NULL, 236 CTLFLAG_PERMANENT, 237 CTLTYPE_NODE, "net", 238 SYSCTL_DESCR("Networking"), 239 NULL, 0, NULL, 0, 240 CTL_NET, CTL_EOL); 241 sysctl_createv(clog, 0, NULL, NULL, 242 CTLFLAG_PERMANENT, 243 CTLTYPE_NODE, "debug", 244 SYSCTL_DESCR("Debugging"), 245 NULL, 0, NULL, 0, 246 CTL_DEBUG, CTL_EOL); 247 sysctl_createv(clog, 0, NULL, NULL, 248 CTLFLAG_PERMANENT, 249 CTLTYPE_NODE, "hw", 250 SYSCTL_DESCR("Generic CPU, I/O"), 251 NULL, 0, NULL, 0, 252 CTL_HW, CTL_EOL); 253 sysctl_createv(clog, 0, NULL, NULL, 254 CTLFLAG_PERMANENT, 255 CTLTYPE_NODE, "machdep", 256 SYSCTL_DESCR("Machine dependent"), 257 NULL, 0, NULL, 0, 258 CTL_MACHDEP, CTL_EOL); 259 /* 260 * this node is inserted so that the sysctl nodes in libc can 261 * operate. 262 */ 263 sysctl_createv(clog, 0, NULL, NULL, 264 CTLFLAG_PERMANENT, 265 CTLTYPE_NODE, "user", 266 SYSCTL_DESCR("User-level"), 267 NULL, 0, NULL, 0, 268 CTL_USER, CTL_EOL); 269 sysctl_createv(clog, 0, NULL, NULL, 270 CTLFLAG_PERMANENT, 271 CTLTYPE_NODE, "ddb", 272 SYSCTL_DESCR("In-kernel debugger"), 273 NULL, 0, NULL, 0, 274 CTL_DDB, CTL_EOL); 275 sysctl_createv(clog, 0, NULL, NULL, 276 CTLFLAG_PERMANENT, 277 CTLTYPE_NODE, "proc", 278 SYSCTL_DESCR("Per-process"), 279 NULL, 0, NULL, 0, 280 CTL_PROC, CTL_EOL); 281 sysctl_createv(clog, 0, NULL, NULL, 282 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 283 CTLTYPE_NODE, "vendor", 284 SYSCTL_DESCR("Vendor specific"), 285 NULL, 0, NULL, 0, 286 CTL_VENDOR, CTL_EOL); 287 sysctl_createv(clog, 0, NULL, NULL, 288 CTLFLAG_PERMANENT, 289 CTLTYPE_NODE, "emul", 290 SYSCTL_DESCR("Emulation settings"), 291 NULL, 0, NULL, 0, 292 CTL_EMUL, CTL_EOL); 293 sysctl_createv(clog, 0, NULL, NULL, 294 CTLFLAG_PERMANENT, 295 CTLTYPE_NODE, "security", 296 SYSCTL_DESCR("Security"), 297 NULL, 0, NULL, 0, 298 CTL_SECURITY, CTL_EOL); 299 } 300 301 /* 302 * this setup routine is a replacement for kern_sysctl() 303 */ 304 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 305 { 306 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 307 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 308 extern int dumponpanic; /* defined in kern/subr_prf.c */ 309 const struct sysctlnode *rnode; 310 311 sysctl_createv(clog, 0, NULL, NULL, 312 CTLFLAG_PERMANENT, 313 CTLTYPE_NODE, "kern", NULL, 314 NULL, 0, NULL, 0, 315 CTL_KERN, CTL_EOL); 316 317 sysctl_createv(clog, 0, NULL, NULL, 318 CTLFLAG_PERMANENT, 319 CTLTYPE_STRING, "ostype", 320 SYSCTL_DESCR("Operating system type"), 321 NULL, 0, &ostype, 0, 322 CTL_KERN, KERN_OSTYPE, CTL_EOL); 323 sysctl_createv(clog, 0, NULL, NULL, 324 CTLFLAG_PERMANENT, 325 CTLTYPE_STRING, "osrelease", 326 SYSCTL_DESCR("Operating system release"), 327 NULL, 0, &osrelease, 0, 328 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 329 sysctl_createv(clog, 0, NULL, NULL, 330 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 331 CTLTYPE_INT, "osrevision", 332 SYSCTL_DESCR("Operating system revision"), 333 NULL, __NetBSD_Version__, NULL, 0, 334 CTL_KERN, KERN_OSREV, CTL_EOL); 335 sysctl_createv(clog, 0, NULL, NULL, 336 CTLFLAG_PERMANENT, 337 CTLTYPE_STRING, "version", 338 SYSCTL_DESCR("Kernel version"), 339 NULL, 0, &version, 0, 340 CTL_KERN, KERN_VERSION, CTL_EOL); 341 sysctl_createv(clog, 0, NULL, NULL, 342 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 343 CTLTYPE_INT, "maxvnodes", 344 SYSCTL_DESCR("Maximum number of vnodes"), 345 sysctl_kern_maxvnodes, 0, NULL, 0, 346 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 347 sysctl_createv(clog, 0, NULL, NULL, 348 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 349 CTLTYPE_INT, "maxproc", 350 SYSCTL_DESCR("Maximum number of simultaneous processes"), 351 sysctl_kern_maxproc, 0, NULL, 0, 352 CTL_KERN, KERN_MAXPROC, CTL_EOL); 353 sysctl_createv(clog, 0, NULL, NULL, 354 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 355 CTLTYPE_INT, "maxfiles", 356 SYSCTL_DESCR("Maximum number of open files"), 357 NULL, 0, &maxfiles, 0, 358 CTL_KERN, KERN_MAXFILES, CTL_EOL); 359 sysctl_createv(clog, 0, NULL, NULL, 360 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 361 CTLTYPE_INT, "argmax", 362 SYSCTL_DESCR("Maximum number of bytes of arguments to " 363 "execve(2)"), 364 NULL, ARG_MAX, NULL, 0, 365 CTL_KERN, KERN_ARGMAX, CTL_EOL); 366 sysctl_createv(clog, 0, NULL, NULL, 367 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 368 CTLTYPE_STRING, "hostname", 369 SYSCTL_DESCR("System hostname"), 370 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 371 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 372 sysctl_createv(clog, 0, NULL, NULL, 373 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 374 CTLTYPE_INT, "hostid", 375 SYSCTL_DESCR("System host ID number"), 376 sysctl_kern_hostid, 0, NULL, 0, 377 CTL_KERN, KERN_HOSTID, CTL_EOL); 378 sysctl_createv(clog, 0, NULL, NULL, 379 CTLFLAG_PERMANENT, 380 CTLTYPE_STRUCT, "clockrate", 381 SYSCTL_DESCR("Kernel clock rates"), 382 sysctl_kern_clockrate, 0, NULL, 383 sizeof(struct clockinfo), 384 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 385 sysctl_createv(clog, 0, NULL, NULL, 386 CTLFLAG_PERMANENT, 387 CTLTYPE_INT, "hardclock_ticks", 388 SYSCTL_DESCR("Number of hardclock ticks"), 389 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 390 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 391 sysctl_createv(clog, 0, NULL, NULL, 392 CTLFLAG_PERMANENT, 393 CTLTYPE_STRUCT, "vnode", 394 SYSCTL_DESCR("System vnode table"), 395 sysctl_kern_vnode, 0, NULL, 0, 396 CTL_KERN, KERN_VNODE, CTL_EOL); 397 sysctl_createv(clog, 0, NULL, NULL, 398 CTLFLAG_PERMANENT, 399 CTLTYPE_STRUCT, "file", 400 SYSCTL_DESCR("System open file table"), 401 sysctl_kern_file, 0, NULL, 0, 402 CTL_KERN, KERN_FILE, CTL_EOL); 403 #ifndef GPROF 404 sysctl_createv(clog, 0, NULL, NULL, 405 CTLFLAG_PERMANENT, 406 CTLTYPE_NODE, "profiling", 407 SYSCTL_DESCR("Profiling information (not available)"), 408 sysctl_notavail, 0, NULL, 0, 409 CTL_KERN, KERN_PROF, CTL_EOL); 410 #endif 411 sysctl_createv(clog, 0, NULL, NULL, 412 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 413 CTLTYPE_INT, "posix1version", 414 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 415 "with which the operating system attempts " 416 "to comply"), 417 NULL, _POSIX_VERSION, NULL, 0, 418 CTL_KERN, KERN_POSIX1, CTL_EOL); 419 sysctl_createv(clog, 0, NULL, NULL, 420 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 421 CTLTYPE_INT, "ngroups", 422 SYSCTL_DESCR("Maximum number of supplemental groups"), 423 NULL, NGROUPS_MAX, NULL, 0, 424 CTL_KERN, KERN_NGROUPS, CTL_EOL); 425 sysctl_createv(clog, 0, NULL, NULL, 426 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 427 CTLTYPE_INT, "job_control", 428 SYSCTL_DESCR("Whether job control is available"), 429 NULL, 1, NULL, 0, 430 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 431 sysctl_createv(clog, 0, NULL, NULL, 432 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 433 CTLTYPE_INT, "saved_ids", 434 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 435 "available"), NULL, 436 #ifdef _POSIX_SAVED_IDS 437 1, 438 #else /* _POSIX_SAVED_IDS */ 439 0, 440 #endif /* _POSIX_SAVED_IDS */ 441 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 442 sysctl_createv(clog, 0, NULL, NULL, 443 CTLFLAG_PERMANENT, 444 CTLTYPE_STRUCT, "boottime", 445 SYSCTL_DESCR("System boot time"), 446 NULL, 0, &boottime, sizeof(boottime), 447 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 448 sysctl_createv(clog, 0, NULL, NULL, 449 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 450 CTLTYPE_STRING, "domainname", 451 SYSCTL_DESCR("YP domain name"), 452 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 453 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 454 sysctl_createv(clog, 0, NULL, NULL, 455 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 456 CTLTYPE_INT, "maxpartitions", 457 SYSCTL_DESCR("Maximum number of partitions allowed per " 458 "disk"), 459 NULL, MAXPARTITIONS, NULL, 0, 460 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 461 sysctl_createv(clog, 0, NULL, NULL, 462 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 463 CTLTYPE_INT, "rawpartition", 464 SYSCTL_DESCR("Raw partition of a disk"), 465 NULL, RAW_PART, NULL, 0, 466 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 467 sysctl_createv(clog, 0, NULL, NULL, 468 CTLFLAG_PERMANENT, 469 CTLTYPE_STRUCT, "timex", NULL, 470 sysctl_notavail, 0, NULL, 0, 471 CTL_KERN, KERN_TIMEX, CTL_EOL); 472 sysctl_createv(clog, 0, NULL, NULL, 473 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 474 CTLTYPE_INT, "rtc_offset", 475 SYSCTL_DESCR("Offset of real time clock from UTC in " 476 "minutes"), 477 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 478 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 479 sysctl_createv(clog, 0, NULL, NULL, 480 CTLFLAG_PERMANENT, 481 CTLTYPE_STRING, "root_device", 482 SYSCTL_DESCR("Name of the root device"), 483 sysctl_root_device, 0, NULL, 0, 484 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 485 sysctl_createv(clog, 0, NULL, NULL, 486 CTLFLAG_PERMANENT, 487 CTLTYPE_INT, "msgbufsize", 488 SYSCTL_DESCR("Size of the kernel message buffer"), 489 sysctl_msgbuf, 0, NULL, 0, 490 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 491 sysctl_createv(clog, 0, NULL, NULL, 492 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 493 CTLTYPE_INT, "fsync", 494 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 495 "Synchronization Option is available on " 496 "this system"), 497 NULL, 1, NULL, 0, 498 CTL_KERN, KERN_FSYNC, CTL_EOL); 499 sysctl_createv(clog, 0, NULL, NULL, 500 CTLFLAG_PERMANENT, 501 CTLTYPE_NODE, "ipc", 502 SYSCTL_DESCR("SysV IPC options"), 503 NULL, 0, NULL, 0, 504 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 505 sysctl_createv(clog, 0, NULL, NULL, 506 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 507 CTLTYPE_INT, "sysvmsg", 508 SYSCTL_DESCR("System V style message support available"), 509 NULL, 510 #ifdef SYSVMSG 511 1, 512 #else /* SYSVMSG */ 513 0, 514 #endif /* SYSVMSG */ 515 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 516 sysctl_createv(clog, 0, NULL, NULL, 517 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 518 CTLTYPE_INT, "sysvsem", 519 SYSCTL_DESCR("System V style semaphore support " 520 "available"), NULL, 521 #ifdef SYSVSEM 522 1, 523 #else /* SYSVSEM */ 524 0, 525 #endif /* SYSVSEM */ 526 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 527 sysctl_createv(clog, 0, NULL, NULL, 528 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 529 CTLTYPE_INT, "sysvshm", 530 SYSCTL_DESCR("System V style shared memory support " 531 "available"), NULL, 532 #ifdef SYSVSHM 533 1, 534 #else /* SYSVSHM */ 535 0, 536 #endif /* SYSVSHM */ 537 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 538 sysctl_createv(clog, 0, NULL, NULL, 539 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 540 CTLTYPE_INT, "synchronized_io", 541 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 542 "I/O Option is available on this system"), 543 NULL, 1, NULL, 0, 544 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 545 sysctl_createv(clog, 0, NULL, NULL, 546 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 547 CTLTYPE_INT, "iov_max", 548 SYSCTL_DESCR("Maximum number of iovec structures per " 549 "process"), 550 NULL, IOV_MAX, NULL, 0, 551 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 552 sysctl_createv(clog, 0, NULL, NULL, 553 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 554 CTLTYPE_INT, "mapped_files", 555 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 556 "Files Option is available on this system"), 557 NULL, 1, NULL, 0, 558 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 559 sysctl_createv(clog, 0, NULL, NULL, 560 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 561 CTLTYPE_INT, "memlock", 562 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 563 "Locking Option is available on this " 564 "system"), 565 NULL, 1, NULL, 0, 566 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 567 sysctl_createv(clog, 0, NULL, NULL, 568 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 569 CTLTYPE_INT, "memlock_range", 570 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 571 "Locking Option is available on this " 572 "system"), 573 NULL, 1, NULL, 0, 574 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 575 sysctl_createv(clog, 0, NULL, NULL, 576 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 577 CTLTYPE_INT, "memory_protection", 578 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 579 "Protection Option is available on this " 580 "system"), 581 NULL, 1, NULL, 0, 582 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 583 sysctl_createv(clog, 0, NULL, NULL, 584 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 585 CTLTYPE_INT, "login_name_max", 586 SYSCTL_DESCR("Maximum login name length"), 587 NULL, LOGIN_NAME_MAX, NULL, 0, 588 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 589 sysctl_createv(clog, 0, NULL, NULL, 590 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 591 CTLTYPE_STRING, "defcorename", 592 SYSCTL_DESCR("Default core file name"), 593 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 594 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 595 sysctl_createv(clog, 0, NULL, NULL, 596 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 597 CTLTYPE_INT, "logsigexit", 598 SYSCTL_DESCR("Log process exit when caused by signals"), 599 NULL, 0, &kern_logsigexit, 0, 600 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 601 sysctl_createv(clog, 0, NULL, NULL, 602 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 603 CTLTYPE_INT, "fscale", 604 SYSCTL_DESCR("Kernel fixed-point scale factor"), 605 NULL, FSCALE, NULL, 0, 606 CTL_KERN, KERN_FSCALE, CTL_EOL); 607 sysctl_createv(clog, 0, NULL, NULL, 608 CTLFLAG_PERMANENT, 609 CTLTYPE_INT, "ccpu", 610 SYSCTL_DESCR("Scheduler exponential decay value"), 611 NULL, 0, &ccpu, 0, 612 CTL_KERN, KERN_CCPU, CTL_EOL); 613 sysctl_createv(clog, 0, NULL, NULL, 614 CTLFLAG_PERMANENT, 615 CTLTYPE_STRUCT, "cp_time", 616 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 617 sysctl_kern_cptime, 0, NULL, 0, 618 CTL_KERN, KERN_CP_TIME, CTL_EOL); 619 sysctl_createv(clog, 0, NULL, NULL, 620 CTLFLAG_PERMANENT, 621 CTLTYPE_INT, "msgbuf", 622 SYSCTL_DESCR("Kernel message buffer"), 623 sysctl_msgbuf, 0, NULL, 0, 624 CTL_KERN, KERN_MSGBUF, CTL_EOL); 625 sysctl_createv(clog, 0, NULL, NULL, 626 CTLFLAG_PERMANENT, 627 CTLTYPE_STRUCT, "consdev", 628 SYSCTL_DESCR("Console device"), 629 sysctl_consdev, 0, NULL, sizeof(dev_t), 630 CTL_KERN, KERN_CONSDEV, CTL_EOL); 631 #if NPTY > 0 632 sysctl_createv(clog, 0, NULL, NULL, 633 CTLFLAG_PERMANENT, 634 CTLTYPE_INT, "maxptys", 635 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 636 sysctl_kern_maxptys, 0, NULL, 0, 637 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 638 #endif /* NPTY > 0 */ 639 sysctl_createv(clog, 0, NULL, NULL, 640 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 641 CTLTYPE_INT, "maxphys", 642 SYSCTL_DESCR("Maximum raw I/O transfer size"), 643 NULL, MAXPHYS, NULL, 0, 644 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 645 sysctl_createv(clog, 0, NULL, NULL, 646 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 647 CTLTYPE_INT, "sbmax", 648 SYSCTL_DESCR("Maximum socket buffer size"), 649 sysctl_kern_sbmax, 0, NULL, 0, 650 CTL_KERN, KERN_SBMAX, CTL_EOL); 651 sysctl_createv(clog, 0, NULL, NULL, 652 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 653 CTLTYPE_INT, "monotonic_clock", 654 SYSCTL_DESCR("Implementation version of the POSIX " 655 "1003.1b Monotonic Clock Option"), 656 /* XXX _POSIX_VERSION */ 657 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 658 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 659 sysctl_createv(clog, 0, NULL, NULL, 660 CTLFLAG_PERMANENT, 661 CTLTYPE_INT, "urandom", 662 SYSCTL_DESCR("Random integer value"), 663 sysctl_kern_urnd, 0, NULL, 0, 664 CTL_KERN, KERN_URND, CTL_EOL); 665 sysctl_createv(clog, 0, NULL, NULL, 666 CTLFLAG_PERMANENT, 667 CTLTYPE_INT, "arandom", 668 SYSCTL_DESCR("n bytes of random data"), 669 sysctl_kern_arnd, 0, NULL, 0, 670 CTL_KERN, KERN_ARND, CTL_EOL); 671 sysctl_createv(clog, 0, NULL, NULL, 672 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 673 CTLTYPE_INT, "labelsector", 674 SYSCTL_DESCR("Sector number containing the disklabel"), 675 NULL, LABELSECTOR, NULL, 0, 676 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 677 sysctl_createv(clog, 0, NULL, NULL, 678 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 679 CTLTYPE_INT, "labeloffset", 680 SYSCTL_DESCR("Offset of the disklabel within the " 681 "sector"), 682 NULL, LABELOFFSET, NULL, 0, 683 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 684 sysctl_createv(clog, 0, NULL, NULL, 685 CTLFLAG_PERMANENT, 686 CTLTYPE_NODE, "lwp", 687 SYSCTL_DESCR("System-wide LWP information"), 688 sysctl_kern_lwp, 0, NULL, 0, 689 CTL_KERN, KERN_LWP, CTL_EOL); 690 sysctl_createv(clog, 0, NULL, NULL, 691 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 692 CTLTYPE_INT, "forkfsleep", 693 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 694 "to process limits"), 695 sysctl_kern_forkfsleep, 0, NULL, 0, 696 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 697 sysctl_createv(clog, 0, NULL, NULL, 698 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 699 CTLTYPE_INT, "posix_threads", 700 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 701 "Threads option to which the system " 702 "attempts to conform"), 703 /* XXX _POSIX_VERSION */ 704 NULL, _POSIX_THREADS, NULL, 0, 705 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 706 sysctl_createv(clog, 0, NULL, NULL, 707 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 708 CTLTYPE_INT, "posix_semaphores", 709 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 710 "Semaphores option to which the system " 711 "attempts to conform"), NULL, 712 #ifdef P1003_1B_SEMAPHORE 713 200112, 714 #else /* P1003_1B_SEMAPHORE */ 715 0, 716 #endif /* P1003_1B_SEMAPHORE */ 717 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 718 sysctl_createv(clog, 0, NULL, NULL, 719 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 720 CTLTYPE_INT, "posix_barriers", 721 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 722 "Barriers option to which the system " 723 "attempts to conform"), 724 /* XXX _POSIX_VERSION */ 725 NULL, _POSIX_BARRIERS, NULL, 0, 726 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 727 sysctl_createv(clog, 0, NULL, NULL, 728 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 729 CTLTYPE_INT, "posix_timers", 730 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 731 "Timers option to which the system " 732 "attempts to conform"), 733 /* XXX _POSIX_VERSION */ 734 NULL, _POSIX_TIMERS, NULL, 0, 735 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 736 sysctl_createv(clog, 0, NULL, NULL, 737 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 738 CTLTYPE_INT, "posix_spin_locks", 739 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 740 "Locks option to which the system attempts " 741 "to conform"), 742 /* XXX _POSIX_VERSION */ 743 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 744 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 745 sysctl_createv(clog, 0, NULL, NULL, 746 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 747 CTLTYPE_INT, "posix_reader_writer_locks", 748 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 749 "Read-Write Locks option to which the " 750 "system attempts to conform"), 751 /* XXX _POSIX_VERSION */ 752 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 753 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 754 sysctl_createv(clog, 0, NULL, NULL, 755 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 756 CTLTYPE_INT, "dump_on_panic", 757 SYSCTL_DESCR("Perform a crash dump on system panic"), 758 NULL, 0, &dumponpanic, 0, 759 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 760 #ifdef DIAGNOSTIC 761 sysctl_createv(clog, 0, NULL, NULL, 762 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 763 CTLTYPE_INT, "panic_now", 764 SYSCTL_DESCR("Trigger a panic"), 765 sysctl_kern_trigger_panic, 0, NULL, 0, 766 CTL_KERN, CTL_CREATE, CTL_EOL); 767 #endif 768 sysctl_createv(clog, 0, NULL, NULL, 769 CTLFLAG_PERMANENT, 770 CTLTYPE_INT, "root_partition", 771 SYSCTL_DESCR("Root partition on the root device"), 772 sysctl_kern_root_partition, 0, NULL, 0, 773 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 774 sysctl_createv(clog, 0, NULL, NULL, 775 CTLFLAG_PERMANENT, 776 CTLTYPE_STRUCT, "drivers", 777 SYSCTL_DESCR("List of all drivers with block and " 778 "character device numbers"), 779 sysctl_kern_drivers, 0, NULL, 0, 780 CTL_KERN, KERN_DRIVERS, CTL_EOL); 781 sysctl_createv(clog, 0, NULL, NULL, 782 CTLFLAG_PERMANENT, 783 CTLTYPE_STRUCT, "file2", 784 SYSCTL_DESCR("System open file table"), 785 sysctl_kern_file2, 0, NULL, 0, 786 CTL_KERN, KERN_FILE2, CTL_EOL); 787 sysctl_createv(clog, 0, NULL, NULL, 788 CTLFLAG_PERMANENT, 789 CTLTYPE_STRUCT, "cp_id", 790 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 791 sysctl_kern_cpid, 0, NULL, 0, 792 CTL_KERN, KERN_CP_ID, CTL_EOL); 793 sysctl_createv(clog, 0, NULL, &rnode, 794 CTLFLAG_PERMANENT, 795 CTLTYPE_NODE, "coredump", 796 SYSCTL_DESCR("Coredump settings."), 797 NULL, 0, NULL, 0, 798 CTL_KERN, CTL_CREATE, CTL_EOL); 799 sysctl_createv(clog, 0, &rnode, &rnode, 800 CTLFLAG_PERMANENT, 801 CTLTYPE_NODE, "setid", 802 SYSCTL_DESCR("Set-id processes' coredump settings."), 803 NULL, 0, NULL, 0, 804 CTL_CREATE, CTL_EOL); 805 sysctl_createv(clog, 0, &rnode, NULL, 806 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 807 CTLTYPE_INT, "dump", 808 SYSCTL_DESCR("Allow set-id processes to dump core."), 809 sysctl_security_setidcore, 0, &security_setidcore_dump, 810 sizeof(security_setidcore_dump), 811 CTL_CREATE, CTL_EOL); 812 sysctl_createv(clog, 0, &rnode, NULL, 813 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 814 CTLTYPE_STRING, "path", 815 SYSCTL_DESCR("Path pattern for set-id coredumps."), 816 sysctl_security_setidcorename, 0, 817 &security_setidcore_path, 818 sizeof(security_setidcore_path), 819 CTL_CREATE, CTL_EOL); 820 sysctl_createv(clog, 0, &rnode, NULL, 821 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 822 CTLTYPE_INT, "owner", 823 SYSCTL_DESCR("Owner id for set-id processes' cores."), 824 sysctl_security_setidcore, 0, &security_setidcore_owner, 825 0, 826 CTL_CREATE, CTL_EOL); 827 sysctl_createv(clog, 0, &rnode, NULL, 828 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 829 CTLTYPE_INT, "group", 830 SYSCTL_DESCR("Group id for set-id processes' cores."), 831 sysctl_security_setidcore, 0, &security_setidcore_group, 832 0, 833 CTL_CREATE, CTL_EOL); 834 sysctl_createv(clog, 0, &rnode, NULL, 835 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 836 CTLTYPE_INT, "mode", 837 SYSCTL_DESCR("Mode for set-id processes' cores."), 838 sysctl_security_setidcore, 0, &security_setidcore_mode, 839 0, 840 CTL_CREATE, CTL_EOL); 841 sysctl_createv(clog, 0, NULL, NULL, 842 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 843 CTLTYPE_INT, "no_sa_support", 844 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"), 845 NULL, 1, NULL, 0, 846 CTL_KERN, CTL_CREATE, CTL_EOL); 847 } 848 849 SYSCTL_SETUP(sysctl_kern_proc_setup, 850 "sysctl kern.proc/proc2/proc_args subtree setup") 851 { 852 853 sysctl_createv(clog, 0, NULL, NULL, 854 CTLFLAG_PERMANENT, 855 CTLTYPE_NODE, "kern", NULL, 856 NULL, 0, NULL, 0, 857 CTL_KERN, CTL_EOL); 858 859 sysctl_createv(clog, 0, NULL, NULL, 860 CTLFLAG_PERMANENT, 861 CTLTYPE_NODE, "proc", 862 SYSCTL_DESCR("System-wide process information"), 863 sysctl_doeproc, 0, NULL, 0, 864 CTL_KERN, KERN_PROC, CTL_EOL); 865 sysctl_createv(clog, 0, NULL, NULL, 866 CTLFLAG_PERMANENT, 867 CTLTYPE_NODE, "proc2", 868 SYSCTL_DESCR("Machine-independent process information"), 869 sysctl_doeproc, 0, NULL, 0, 870 CTL_KERN, KERN_PROC2, CTL_EOL); 871 sysctl_createv(clog, 0, NULL, NULL, 872 CTLFLAG_PERMANENT, 873 CTLTYPE_NODE, "proc_args", 874 SYSCTL_DESCR("Process argument information"), 875 sysctl_kern_proc_args, 0, NULL, 0, 876 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 877 878 /* 879 "nodes" under these: 880 881 KERN_PROC_ALL 882 KERN_PROC_PID pid 883 KERN_PROC_PGRP pgrp 884 KERN_PROC_SESSION sess 885 KERN_PROC_TTY tty 886 KERN_PROC_UID uid 887 KERN_PROC_RUID uid 888 KERN_PROC_GID gid 889 KERN_PROC_RGID gid 890 891 all in all, probably not worth the effort... 892 */ 893 } 894 895 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 896 { 897 u_int u; 898 u_quad_t q; 899 900 sysctl_createv(clog, 0, NULL, NULL, 901 CTLFLAG_PERMANENT, 902 CTLTYPE_NODE, "hw", NULL, 903 NULL, 0, NULL, 0, 904 CTL_HW, CTL_EOL); 905 906 sysctl_createv(clog, 0, NULL, NULL, 907 CTLFLAG_PERMANENT, 908 CTLTYPE_STRING, "machine", 909 SYSCTL_DESCR("Machine class"), 910 NULL, 0, machine, 0, 911 CTL_HW, HW_MACHINE, CTL_EOL); 912 sysctl_createv(clog, 0, NULL, NULL, 913 CTLFLAG_PERMANENT, 914 CTLTYPE_STRING, "model", 915 SYSCTL_DESCR("Machine model"), 916 NULL, 0, cpu_model, 0, 917 CTL_HW, HW_MODEL, CTL_EOL); 918 sysctl_createv(clog, 0, NULL, NULL, 919 CTLFLAG_PERMANENT, 920 CTLTYPE_INT, "ncpu", 921 SYSCTL_DESCR("Number of CPUs configured"), 922 NULL, 0, &ncpu, 0, 923 CTL_HW, HW_NCPU, CTL_EOL); 924 sysctl_createv(clog, 0, NULL, NULL, 925 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 926 CTLTYPE_INT, "byteorder", 927 SYSCTL_DESCR("System byte order"), 928 NULL, BYTE_ORDER, NULL, 0, 929 CTL_HW, HW_BYTEORDER, CTL_EOL); 930 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 931 UINT_MAX : physmem * PAGE_SIZE; 932 sysctl_createv(clog, 0, NULL, NULL, 933 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 934 CTLTYPE_INT, "physmem", 935 SYSCTL_DESCR("Bytes of physical memory"), 936 NULL, u, NULL, 0, 937 CTL_HW, HW_PHYSMEM, CTL_EOL); 938 sysctl_createv(clog, 0, NULL, NULL, 939 CTLFLAG_PERMANENT, 940 CTLTYPE_INT, "usermem", 941 SYSCTL_DESCR("Bytes of non-kernel memory"), 942 sysctl_hw_usermem, 0, NULL, 0, 943 CTL_HW, HW_USERMEM, CTL_EOL); 944 sysctl_createv(clog, 0, NULL, NULL, 945 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 946 CTLTYPE_INT, "pagesize", 947 SYSCTL_DESCR("Software page size"), 948 NULL, PAGE_SIZE, NULL, 0, 949 CTL_HW, HW_PAGESIZE, CTL_EOL); 950 sysctl_createv(clog, 0, NULL, NULL, 951 CTLFLAG_PERMANENT, 952 CTLTYPE_STRING, "machine_arch", 953 SYSCTL_DESCR("Machine CPU class"), 954 NULL, 0, machine_arch, 0, 955 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 956 sysctl_createv(clog, 0, NULL, NULL, 957 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 958 CTLTYPE_INT, "alignbytes", 959 SYSCTL_DESCR("Alignment constraint for all possible " 960 "data types"), 961 NULL, ALIGNBYTES, NULL, 0, 962 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 963 sysctl_createv(clog, 0, NULL, NULL, 964 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 965 CTLTYPE_STRING, "cnmagic", 966 SYSCTL_DESCR("Console magic key sequence"), 967 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 968 CTL_HW, HW_CNMAGIC, CTL_EOL); 969 q = (u_quad_t)physmem * PAGE_SIZE; 970 sysctl_createv(clog, 0, NULL, NULL, 971 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 972 CTLTYPE_QUAD, "physmem64", 973 SYSCTL_DESCR("Bytes of physical memory"), 974 NULL, q, NULL, 0, 975 CTL_HW, HW_PHYSMEM64, CTL_EOL); 976 sysctl_createv(clog, 0, NULL, NULL, 977 CTLFLAG_PERMANENT, 978 CTLTYPE_QUAD, "usermem64", 979 SYSCTL_DESCR("Bytes of non-kernel memory"), 980 sysctl_hw_usermem, 0, NULL, 0, 981 CTL_HW, HW_USERMEM64, CTL_EOL); 982 sysctl_createv(clog, 0, NULL, NULL, 983 CTLFLAG_PERMANENT, 984 CTLTYPE_INT, "ncpuonline", 985 SYSCTL_DESCR("Number of CPUs online"), 986 NULL, 0, &ncpuonline, 0, 987 CTL_HW, HW_NCPUONLINE, 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 KAUTH_ARG(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 return (settime(l->l_proc, &ts)); 1160 } 1161 1162 /* 1163 * sysctl helper routine for kern.maxproc. Ensures that the new 1164 * values are not too low or too high. 1165 */ 1166 static int 1167 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1168 { 1169 int error, nmaxproc; 1170 struct sysctlnode node; 1171 1172 nmaxproc = maxproc; 1173 node = *rnode; 1174 node.sysctl_data = &nmaxproc; 1175 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1176 if (error || newp == NULL) 1177 return (error); 1178 1179 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1180 return (EINVAL); 1181 #ifdef __HAVE_CPU_MAXPROC 1182 if (nmaxproc > cpu_maxproc()) 1183 return (EINVAL); 1184 #endif 1185 maxproc = nmaxproc; 1186 1187 return (0); 1188 } 1189 1190 /* 1191 * sysctl helper function for kern.hostid. The hostid is a long, but 1192 * we export it as an int, so we need to give it a little help. 1193 */ 1194 static int 1195 sysctl_kern_hostid(SYSCTLFN_ARGS) 1196 { 1197 int error, inthostid; 1198 struct sysctlnode node; 1199 1200 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1201 node = *rnode; 1202 node.sysctl_data = &inthostid; 1203 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1204 if (error || newp == NULL) 1205 return (error); 1206 1207 hostid = (unsigned)inthostid; 1208 1209 return (0); 1210 } 1211 1212 /* 1213 * sysctl helper function for kern.hostname and kern.domainnname. 1214 * resets the relevant recorded length when the underlying name is 1215 * changed. 1216 */ 1217 static int 1218 sysctl_setlen(SYSCTLFN_ARGS) 1219 { 1220 int error; 1221 1222 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1223 if (error || newp == NULL) 1224 return (error); 1225 1226 switch (rnode->sysctl_num) { 1227 case KERN_HOSTNAME: 1228 hostnamelen = strlen((const char*)rnode->sysctl_data); 1229 break; 1230 case KERN_DOMAINNAME: 1231 domainnamelen = strlen((const char*)rnode->sysctl_data); 1232 break; 1233 } 1234 1235 return (0); 1236 } 1237 1238 /* 1239 * sysctl helper routine for kern.clockrate. Assembles a struct on 1240 * the fly to be returned to the caller. 1241 */ 1242 static int 1243 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1244 { 1245 struct clockinfo clkinfo; 1246 struct sysctlnode node; 1247 1248 clkinfo.tick = tick; 1249 clkinfo.tickadj = tickadj; 1250 clkinfo.hz = hz; 1251 clkinfo.profhz = profhz; 1252 clkinfo.stathz = stathz ? stathz : hz; 1253 1254 node = *rnode; 1255 node.sysctl_data = &clkinfo; 1256 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1257 } 1258 1259 1260 /* 1261 * sysctl helper routine for kern.file pseudo-subtree. 1262 */ 1263 static int 1264 sysctl_kern_file(SYSCTLFN_ARGS) 1265 { 1266 int error; 1267 size_t buflen; 1268 struct file *fp, *dp, *np, fbuf; 1269 char *start, *where; 1270 1271 start = where = oldp; 1272 buflen = *oldlenp; 1273 dp = NULL; 1274 1275 if (where == NULL) { 1276 /* 1277 * overestimate by 10 files 1278 */ 1279 *oldlenp = sizeof(filehead) + (nfiles + 10) * 1280 sizeof(struct file); 1281 return (0); 1282 } 1283 1284 /* 1285 * first dcopyout filehead 1286 */ 1287 if (buflen < sizeof(filehead)) { 1288 *oldlenp = 0; 1289 return (0); 1290 } 1291 sysctl_unlock(); 1292 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1293 if (error) { 1294 sysctl_relock(); 1295 return error; 1296 } 1297 buflen -= sizeof(filehead); 1298 where += sizeof(filehead); 1299 1300 /* 1301 * allocate dummy file descriptor to make position in list 1302 */ 1303 if ((dp = fgetdummy()) == NULL) { 1304 sysctl_relock(); 1305 return ENOMEM; 1306 } 1307 1308 /* 1309 * followed by an array of file structures 1310 */ 1311 mutex_enter(&filelist_lock); 1312 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1313 if (kauth_authorize_generic(l->l_cred, 1314 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1315 np = LIST_NEXT(fp, f_list); 1316 continue; 1317 } 1318 if (buflen < sizeof(struct file)) { 1319 *oldlenp = where - start; 1320 mutex_exit(&filelist_lock); 1321 error = ENOMEM; 1322 break; 1323 } 1324 memcpy(&fbuf, fp, sizeof(fbuf)); 1325 LIST_INSERT_AFTER(fp, dp, f_list); 1326 mutex_exit(&filelist_lock); 1327 error = dcopyout(l, &fbuf, where, sizeof(fbuf)); 1328 if (error) { 1329 mutex_enter(&filelist_lock); 1330 LIST_REMOVE(dp, f_list); 1331 break; 1332 } 1333 buflen -= sizeof(struct file); 1334 where += sizeof(struct file); 1335 mutex_enter(&filelist_lock); 1336 np = LIST_NEXT(dp, f_list); 1337 LIST_REMOVE(dp, f_list); 1338 } 1339 mutex_exit(&filelist_lock); 1340 *oldlenp = where - start; 1341 if (dp != NULL) 1342 fputdummy(dp); 1343 sysctl_relock(); 1344 return (error); 1345 } 1346 1347 /* 1348 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 1349 * former it merely checks the message buffer is set up. For the latter, 1350 * it also copies out the data if necessary. 1351 */ 1352 static int 1353 sysctl_msgbuf(SYSCTLFN_ARGS) 1354 { 1355 char *where = oldp; 1356 size_t len, maxlen; 1357 long beg, end; 1358 extern kmutex_t log_lock; 1359 int error; 1360 1361 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1362 msgbufenabled = 0; 1363 return (ENXIO); 1364 } 1365 1366 switch (rnode->sysctl_num) { 1367 case KERN_MSGBUFSIZE: { 1368 struct sysctlnode node = *rnode; 1369 int msg_bufs = (int)msgbufp->msg_bufs; 1370 node.sysctl_data = &msg_bufs; 1371 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1372 } 1373 case KERN_MSGBUF: 1374 break; 1375 default: 1376 return (EOPNOTSUPP); 1377 } 1378 1379 if (newp != NULL) 1380 return (EPERM); 1381 1382 if (oldp == NULL) { 1383 /* always return full buffer size */ 1384 *oldlenp = msgbufp->msg_bufs; 1385 return (0); 1386 } 1387 1388 sysctl_unlock(); 1389 1390 /* 1391 * First, copy from the write pointer to the end of 1392 * message buffer. 1393 */ 1394 error = 0; 1395 mutex_spin_enter(&log_lock); 1396 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1397 beg = msgbufp->msg_bufx; 1398 end = msgbufp->msg_bufs; 1399 mutex_spin_exit(&log_lock); 1400 1401 while (maxlen > 0) { 1402 len = MIN(end - beg, maxlen); 1403 if (len == 0) 1404 break; 1405 /* XXX unlocked, but hardly matters. */ 1406 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1407 if (error) 1408 break; 1409 where += len; 1410 maxlen -= len; 1411 1412 /* 1413 * ... then, copy from the beginning of message buffer to 1414 * the write pointer. 1415 */ 1416 beg = 0; 1417 end = msgbufp->msg_bufx; 1418 } 1419 1420 sysctl_relock(); 1421 return (error); 1422 } 1423 1424 /* 1425 * sysctl helper routine for kern.defcorename. In the case of a new 1426 * string being assigned, check that it's not a zero-length string. 1427 * (XXX the check in -current doesn't work, but do we really care?) 1428 */ 1429 static int 1430 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1431 { 1432 int error; 1433 char *newcorename; 1434 struct sysctlnode node; 1435 1436 newcorename = PNBUF_GET(); 1437 node = *rnode; 1438 node.sysctl_data = &newcorename[0]; 1439 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1440 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1441 if (error || newp == NULL) { 1442 goto done; 1443 } 1444 1445 /* 1446 * when sysctl_lookup() deals with a string, it's guaranteed 1447 * to come back nul terminated. So there. :) 1448 */ 1449 if (strlen(newcorename) == 0) { 1450 error = EINVAL; 1451 } else { 1452 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1453 error = 0; 1454 } 1455 done: 1456 PNBUF_PUT(newcorename); 1457 return error; 1458 } 1459 1460 /* 1461 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1462 * across all cpus. 1463 */ 1464 static int 1465 sysctl_kern_cptime(SYSCTLFN_ARGS) 1466 { 1467 struct sysctlnode node = *rnode; 1468 uint64_t *cp_time = NULL; 1469 int error, n = ncpu, i; 1470 struct cpu_info *ci; 1471 CPU_INFO_ITERATOR cii; 1472 1473 /* 1474 * if you specifically pass a buffer that is the size of the 1475 * sum, or if you are probing for the size, you get the "sum" 1476 * of cp_time (and the size thereof) across all processors. 1477 * 1478 * alternately, you can pass an additional mib number and get 1479 * cp_time for that particular processor. 1480 */ 1481 switch (namelen) { 1482 case 0: 1483 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1484 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1485 n = -1; /* SUM */ 1486 } 1487 else { 1488 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1489 n = -2; /* ALL */ 1490 } 1491 break; 1492 case 1: 1493 if (name[0] < 0 || name[0] >= n) 1494 return (ENOENT); /* ENOSUCHPROCESSOR */ 1495 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1496 n = name[0]; 1497 /* 1498 * adjust these so that sysctl_lookup() will be happy 1499 */ 1500 name++; 1501 namelen--; 1502 break; 1503 default: 1504 return (EINVAL); 1505 } 1506 1507 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); 1508 if (cp_time == NULL) 1509 return (ENOMEM); 1510 node.sysctl_data = cp_time; 1511 memset(cp_time, 0, node.sysctl_size); 1512 1513 for (CPU_INFO_FOREACH(cii, ci)) { 1514 if (n <= 0) { 1515 for (i = 0; i < CPUSTATES; i++) { 1516 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1517 } 1518 } 1519 /* 1520 * if a specific processor was requested and we just 1521 * did it, we're done here 1522 */ 1523 if (n == 0) 1524 break; 1525 /* 1526 * if doing "all", skip to next cp_time set for next processor 1527 */ 1528 if (n == -2) 1529 cp_time += CPUSTATES; 1530 /* 1531 * if we're doing a specific processor, we're one 1532 * processor closer 1533 */ 1534 if (n > 0) 1535 n--; 1536 } 1537 1538 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1539 kmem_free(node.sysctl_data, node.sysctl_size); 1540 return (error); 1541 } 1542 1543 #if NPTY > 0 1544 /* 1545 * sysctl helper routine for kern.maxptys. Ensures that any new value 1546 * is acceptable to the pty subsystem. 1547 */ 1548 static int 1549 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1550 { 1551 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1552 int error, xmax; 1553 struct sysctlnode node; 1554 1555 /* get current value of maxptys */ 1556 xmax = pty_maxptys(0, 0); 1557 1558 node = *rnode; 1559 node.sysctl_data = &xmax; 1560 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1561 if (error || newp == NULL) 1562 return (error); 1563 1564 if (xmax != pty_maxptys(xmax, 1)) 1565 return (EINVAL); 1566 1567 return (0); 1568 } 1569 #endif /* NPTY > 0 */ 1570 1571 /* 1572 * sysctl helper routine for kern.sbmax. Basically just ensures that 1573 * any new value is not too small. 1574 */ 1575 static int 1576 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1577 { 1578 int error, new_sbmax; 1579 struct sysctlnode node; 1580 1581 new_sbmax = sb_max; 1582 node = *rnode; 1583 node.sysctl_data = &new_sbmax; 1584 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1585 if (error || newp == NULL) 1586 return (error); 1587 1588 KERNEL_LOCK(1, NULL); 1589 error = sb_max_set(new_sbmax); 1590 KERNEL_UNLOCK_ONE(NULL); 1591 1592 return (error); 1593 } 1594 1595 /* 1596 * sysctl helper routine for kern.urandom node. Picks a random number 1597 * for you. 1598 */ 1599 static int 1600 sysctl_kern_urnd(SYSCTLFN_ARGS) 1601 { 1602 #if NRND > 0 1603 int v, rv; 1604 1605 KERNEL_LOCK(1, NULL); 1606 rv = rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY); 1607 KERNEL_UNLOCK_ONE(NULL); 1608 if (rv == sizeof(v)) { 1609 struct sysctlnode node = *rnode; 1610 node.sysctl_data = &v; 1611 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1612 } 1613 else 1614 return (EIO); /*XXX*/ 1615 #else 1616 return (EOPNOTSUPP); 1617 #endif 1618 } 1619 1620 /* 1621 * sysctl helper routine for kern.arandom node. Picks a random number 1622 * for you. 1623 */ 1624 static int 1625 sysctl_kern_arnd(SYSCTLFN_ARGS) 1626 { 1627 #if NRND > 0 1628 int error; 1629 void *v; 1630 struct sysctlnode node = *rnode; 1631 1632 if (*oldlenp == 0) 1633 return 0; 1634 if (*oldlenp > 8192) 1635 return E2BIG; 1636 1637 v = kmem_alloc(*oldlenp, KM_SLEEP); 1638 arc4randbytes(v, *oldlenp); 1639 node.sysctl_data = v; 1640 node.sysctl_size = *oldlenp; 1641 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1642 kmem_free(v, *oldlenp); 1643 return error; 1644 #else 1645 return (EOPNOTSUPP); 1646 #endif 1647 } 1648 /* 1649 * sysctl helper routine to do kern.lwp.* work. 1650 */ 1651 static int 1652 sysctl_kern_lwp(SYSCTLFN_ARGS) 1653 { 1654 struct kinfo_lwp klwp; 1655 struct proc *p; 1656 struct lwp *l2, *l3; 1657 char *where, *dp; 1658 int pid, elem_size, elem_count; 1659 int buflen, needed, error; 1660 bool gotit; 1661 1662 if (namelen == 1 && name[0] == CTL_QUERY) 1663 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1664 1665 dp = where = oldp; 1666 buflen = where != NULL ? *oldlenp : 0; 1667 error = needed = 0; 1668 1669 if (newp != NULL || namelen != 3) 1670 return (EINVAL); 1671 pid = name[0]; 1672 elem_size = name[1]; 1673 elem_count = name[2]; 1674 1675 sysctl_unlock(); 1676 if (pid == -1) { 1677 mutex_enter(&proclist_lock); 1678 LIST_FOREACH(p, &allproc, p_list) { 1679 /* Grab a hold on the process. */ 1680 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 1681 continue; 1682 } 1683 mutex_exit(&proclist_lock); 1684 1685 mutex_enter(&p->p_smutex); 1686 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1687 if (buflen >= elem_size && elem_count > 0) { 1688 lwp_lock(l2); 1689 fill_lwp(l2, &klwp); 1690 lwp_unlock(l2); 1691 mutex_exit(&p->p_smutex); 1692 1693 /* 1694 * Copy out elem_size, but not 1695 * larger than the size of a 1696 * struct kinfo_proc2. 1697 */ 1698 error = dcopyout(l, &klwp, dp, 1699 min(sizeof(klwp), elem_size)); 1700 if (error) { 1701 rw_exit(&p->p_reflock); 1702 goto cleanup; 1703 } 1704 mutex_enter(&p->p_smutex); 1705 LIST_FOREACH(l3, &p->p_lwps, 1706 l_sibling) { 1707 if (l2 == l3) 1708 break; 1709 } 1710 if (l3 == NULL) { 1711 mutex_exit(&p->p_smutex); 1712 rw_exit(&p->p_reflock); 1713 error = EAGAIN; 1714 goto cleanup; 1715 } 1716 dp += elem_size; 1717 buflen -= elem_size; 1718 elem_count--; 1719 } 1720 needed += elem_size; 1721 } 1722 mutex_exit(&p->p_smutex); 1723 1724 /* Drop reference to process. */ 1725 mutex_enter(&proclist_lock); 1726 rw_exit(&p->p_reflock); 1727 } 1728 mutex_exit(&proclist_lock); 1729 } else { 1730 mutex_enter(&proclist_lock); 1731 p = p_find(pid, PFIND_LOCKED); 1732 if (p == NULL) { 1733 error = ESRCH; 1734 mutex_exit(&proclist_lock); 1735 goto cleanup; 1736 } 1737 /* Grab a hold on the process. */ 1738 gotit = rw_tryenter(&p->p_reflock, RW_READER); 1739 mutex_exit(&proclist_lock); 1740 if (!gotit) { 1741 error = ESRCH; 1742 goto cleanup; 1743 } 1744 1745 mutex_enter(&p->p_smutex); 1746 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1747 if (buflen >= elem_size && elem_count > 0) { 1748 lwp_lock(l2); 1749 fill_lwp(l2, &klwp); 1750 lwp_unlock(l2); 1751 mutex_exit(&p->p_smutex); 1752 /* 1753 * Copy out elem_size, but not larger than 1754 * the size of a struct kinfo_proc2. 1755 */ 1756 error = dcopyout(l, &klwp, dp, 1757 min(sizeof(klwp), elem_size)); 1758 if (error) { 1759 rw_exit(&p->p_reflock); 1760 goto cleanup; 1761 } 1762 mutex_enter(&p->p_smutex); 1763 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1764 if (l2 == l3) 1765 break; 1766 } 1767 if (l3 == NULL) { 1768 mutex_exit(&p->p_smutex); 1769 rw_exit(&p->p_reflock); 1770 error = EAGAIN; 1771 goto cleanup; 1772 } 1773 dp += elem_size; 1774 buflen -= elem_size; 1775 elem_count--; 1776 } 1777 needed += elem_size; 1778 } 1779 mutex_exit(&p->p_smutex); 1780 1781 /* Drop reference to process. */ 1782 rw_exit(&p->p_reflock); 1783 } 1784 1785 if (where != NULL) { 1786 *oldlenp = dp - where; 1787 if (needed > *oldlenp) { 1788 sysctl_relock(); 1789 return (ENOMEM); 1790 } 1791 } else { 1792 needed += KERN_LWPSLOP; 1793 *oldlenp = needed; 1794 } 1795 error = 0; 1796 cleanup: 1797 sysctl_relock(); 1798 return (error); 1799 } 1800 1801 /* 1802 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1803 * given value is not too large or two small, and is at least one 1804 * timer tick if not zero. 1805 */ 1806 static int 1807 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1808 { 1809 /* userland sees value in ms, internally is in ticks */ 1810 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1811 int error, timo, lsleep; 1812 struct sysctlnode node; 1813 1814 lsleep = forkfsleep * 1000 / hz; 1815 node = *rnode; 1816 node.sysctl_data = &lsleep; 1817 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1818 if (error || newp == NULL) 1819 return (error); 1820 1821 /* refuse negative values, and overly 'long time' */ 1822 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1823 return (EINVAL); 1824 1825 timo = mstohz(lsleep); 1826 1827 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1828 if (lsleep != 0 && timo == 0) 1829 forkfsleep = 1; 1830 else 1831 forkfsleep = timo; 1832 1833 return (0); 1834 } 1835 1836 /* 1837 * sysctl helper routine for kern.root_partition 1838 */ 1839 static int 1840 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1841 { 1842 int rootpart = DISKPART(rootdev); 1843 struct sysctlnode node = *rnode; 1844 1845 node.sysctl_data = &rootpart; 1846 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1847 } 1848 1849 /* 1850 * sysctl helper function for kern.drivers 1851 */ 1852 static int 1853 sysctl_kern_drivers(SYSCTLFN_ARGS) 1854 { 1855 int error; 1856 size_t buflen; 1857 struct kinfo_drivers kd; 1858 char *start, *where; 1859 const char *dname; 1860 int i; 1861 extern struct devsw_conv *devsw_conv; 1862 extern int max_devsw_convs; 1863 extern kmutex_t devsw_lock; 1864 1865 if (newp != NULL || namelen != 0) 1866 return (EINVAL); 1867 1868 start = where = oldp; 1869 buflen = *oldlenp; 1870 if (where == NULL) { 1871 *oldlenp = max_devsw_convs * sizeof kd; 1872 return 0; 1873 } 1874 1875 /* 1876 * An array of kinfo_drivers structures 1877 */ 1878 error = 0; 1879 sysctl_unlock(); 1880 mutex_enter(&devsw_lock); 1881 for (i = 0; i < max_devsw_convs; i++) { 1882 dname = devsw_conv[i].d_name; 1883 if (dname == NULL) 1884 continue; 1885 if (buflen < sizeof kd) { 1886 error = ENOMEM; 1887 break; 1888 } 1889 memset(&kd, 0, sizeof(kd)); 1890 kd.d_bmajor = devsw_conv[i].d_bmajor; 1891 kd.d_cmajor = devsw_conv[i].d_cmajor; 1892 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1893 mutex_exit(&devsw_lock); 1894 error = dcopyout(l, &kd, where, sizeof kd); 1895 mutex_enter(&devsw_lock); 1896 if (error != 0) 1897 break; 1898 buflen -= sizeof kd; 1899 where += sizeof kd; 1900 } 1901 mutex_exit(&devsw_lock); 1902 sysctl_relock(); 1903 *oldlenp = where - start; 1904 return error; 1905 } 1906 1907 /* 1908 * sysctl helper function for kern.file2 1909 */ 1910 static int 1911 sysctl_kern_file2(SYSCTLFN_ARGS) 1912 { 1913 struct proc *p; 1914 struct file *fp; 1915 struct filedesc *fd; 1916 struct kinfo_file kf; 1917 char *dp; 1918 u_int i, op; 1919 size_t len, needed, elem_size, out_size; 1920 int error, arg, elem_count; 1921 1922 if (namelen == 1 && name[0] == CTL_QUERY) 1923 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1924 1925 if (namelen != 4) 1926 return (EINVAL); 1927 1928 error = 0; 1929 dp = oldp; 1930 len = (oldp != NULL) ? *oldlenp : 0; 1931 op = name[0]; 1932 arg = name[1]; 1933 elem_size = name[2]; 1934 elem_count = name[3]; 1935 out_size = MIN(sizeof(kf), elem_size); 1936 needed = 0; 1937 1938 if (elem_size < 1 || elem_count < 0) 1939 return (EINVAL); 1940 1941 switch (op) { 1942 case KERN_FILE_BYFILE: 1943 /* 1944 * doesn't use arg so it must be zero 1945 */ 1946 if (arg != 0) 1947 return (EINVAL); 1948 sysctl_unlock(); 1949 mutex_enter(&filelist_lock); 1950 LIST_FOREACH(fp, &filehead, f_list) { 1951 if (kauth_authorize_generic(l->l_cred, 1952 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1953 continue; 1954 mutex_enter(&fp->f_lock); 1955 if (fp->f_count == 0) { 1956 mutex_exit(&fp->f_lock); 1957 continue; 1958 } 1959 FILE_USE(fp); 1960 if (len >= elem_size && elem_count > 0) { 1961 fill_file(&kf, fp, NULL, 0); 1962 error = dcopyout(l, &kf, dp, out_size); 1963 if (error) { 1964 mutex_enter(&filelist_lock); 1965 FILE_UNUSE(fp, NULL); 1966 break; 1967 } 1968 dp += elem_size; 1969 len -= elem_size; 1970 } 1971 if (elem_count > 0) { 1972 needed += elem_size; 1973 if (elem_count != INT_MAX) 1974 elem_count--; 1975 } 1976 /* XXXAD can't work?? */ 1977 mutex_enter(&filelist_lock); 1978 FILE_UNUSE(fp, NULL); 1979 } 1980 mutex_exit(&filelist_lock); 1981 sysctl_relock(); 1982 break; 1983 case KERN_FILE_BYPID: 1984 if (arg < -1) 1985 /* -1 means all processes */ 1986 return (EINVAL); 1987 sysctl_unlock(); 1988 mutex_enter(&proclist_lock); 1989 LIST_FOREACH(p, &allproc, p_list) { 1990 if (p->p_stat == SIDL) { 1991 /* skip embryonic processes */ 1992 continue; 1993 } 1994 if (arg > 0 && p->p_pid != arg) { 1995 /* pick only the one we want */ 1996 /* XXX want 0 to mean "kernel files" */ 1997 continue; 1998 } 1999 mutex_enter(&p->p_mutex); 2000 error = kauth_authorize_process(l->l_cred, 2001 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2002 mutex_exit(&p->p_mutex); 2003 if (error != 0) { 2004 continue; 2005 } 2006 2007 /* 2008 * Grab a hold on the process. 2009 */ 2010 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 2011 continue; 2012 } 2013 mutex_exit(&proclist_lock); 2014 2015 fd = p->p_fd; 2016 rw_enter(&fd->fd_lock, RW_READER); 2017 for (i = 0; i < fd->fd_nfiles; i++) { 2018 fp = fd->fd_ofiles[i]; 2019 if (fp == NULL) { 2020 continue; 2021 } 2022 mutex_enter(&fp->f_lock); 2023 if (!FILE_IS_USABLE(fp)) { 2024 mutex_exit(&fp->f_lock); 2025 continue; 2026 } 2027 if (len >= elem_size && elem_count > 0) { 2028 fill_file(&kf, fd->fd_ofiles[i], p, i); 2029 mutex_exit(&fp->f_lock); 2030 rw_exit(&fd->fd_lock); 2031 error = dcopyout(l, &kf, dp, out_size); 2032 rw_enter(&fd->fd_lock, RW_READER); 2033 if (error) 2034 break; 2035 dp += elem_size; 2036 len -= elem_size; 2037 } else { 2038 mutex_exit(&fp->f_lock); 2039 } 2040 if (elem_count > 0) { 2041 needed += elem_size; 2042 if (elem_count != INT_MAX) 2043 elem_count--; 2044 } 2045 } 2046 rw_exit(&fd->fd_lock); 2047 2048 /* 2049 * Release reference to process. 2050 */ 2051 mutex_enter(&proclist_lock); 2052 rw_exit(&p->p_reflock); 2053 } 2054 mutex_exit(&proclist_lock); 2055 sysctl_relock(); 2056 break; 2057 default: 2058 return (EINVAL); 2059 } 2060 2061 if (oldp == NULL) 2062 needed += KERN_FILESLOP * elem_size; 2063 *oldlenp = needed; 2064 2065 return (error); 2066 } 2067 2068 static void 2069 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2070 { 2071 2072 memset(kp, 0, sizeof(*kp)); 2073 2074 kp->ki_fileaddr = PTRTOUINT64(fp); 2075 kp->ki_flag = fp->f_flag; 2076 kp->ki_iflags = fp->f_iflags; 2077 kp->ki_ftype = fp->f_type; 2078 kp->ki_count = fp->f_count; 2079 kp->ki_msgcount = fp->f_msgcount; 2080 kp->ki_usecount = fp->f_usecount; 2081 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2082 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2083 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2084 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2085 kp->ki_foffset = fp->f_offset; 2086 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2087 2088 /* vnode information to glue this file to something */ 2089 if (fp->f_type == DTYPE_VNODE) { 2090 struct vnode *vp = (struct vnode *)fp->f_data; 2091 2092 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2093 kp->ki_vsize = vp->v_size; 2094 kp->ki_vtype = vp->v_type; 2095 kp->ki_vtag = vp->v_tag; 2096 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2097 } 2098 2099 /* process information when retrieved via KERN_FILE_BYPID */ 2100 if (p) { 2101 KASSERT(rw_lock_held(&p->p_fd->fd_lock)); 2102 2103 kp->ki_pid = p->p_pid; 2104 kp->ki_fd = i; 2105 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2106 } 2107 } 2108 2109 static int 2110 sysctl_doeproc(SYSCTLFN_ARGS) 2111 { 2112 struct eproc *eproc; 2113 struct kinfo_proc2 *kproc2; 2114 struct kinfo_proc *dp; 2115 struct proc *p; 2116 char *where, *dp2; 2117 int type, op, arg; 2118 u_int elem_size, elem_count; 2119 size_t buflen, needed; 2120 bool match; 2121 int error; 2122 2123 if (namelen == 1 && name[0] == CTL_QUERY) 2124 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2125 2126 dp = oldp; 2127 dp2 = where = oldp; 2128 buflen = where != NULL ? *oldlenp : 0; 2129 error = 0; 2130 needed = 0; 2131 type = rnode->sysctl_num; 2132 2133 if (type == KERN_PROC) { 2134 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2135 return (EINVAL); 2136 op = name[0]; 2137 if (op != KERN_PROC_ALL) 2138 arg = name[1]; 2139 else 2140 arg = 0; /* Quell compiler warning */ 2141 elem_size = elem_count = 0; /* Ditto */ 2142 } else { 2143 if (namelen != 4) 2144 return (EINVAL); 2145 op = name[0]; 2146 arg = name[1]; 2147 elem_size = name[2]; 2148 elem_count = name[3]; 2149 } 2150 2151 sysctl_unlock(); 2152 2153 if (type == KERN_PROC) { 2154 eproc = kmem_alloc(sizeof(*eproc), KM_SLEEP); 2155 kproc2 = NULL; 2156 } else { 2157 eproc = NULL; 2158 kproc2 = kmem_alloc(sizeof(*kproc2), KM_SLEEP); 2159 } 2160 2161 mutex_enter(&proclist_lock); 2162 LIST_FOREACH(p, &allproc, p_list) { 2163 /* 2164 * Skip embryonic processes. 2165 */ 2166 if (p->p_stat == SIDL) 2167 continue; 2168 2169 mutex_enter(&p->p_mutex); 2170 error = kauth_authorize_process(l->l_cred, 2171 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2172 if (error != 0) { 2173 mutex_exit(&p->p_mutex); 2174 continue; 2175 } 2176 2177 /* 2178 * TODO - make more efficient (see notes below). 2179 * do by session. 2180 */ 2181 switch (op) { 2182 case KERN_PROC_PID: 2183 /* could do this with just a lookup */ 2184 match = (p->p_pid == (pid_t)arg); 2185 break; 2186 2187 case KERN_PROC_PGRP: 2188 /* could do this by traversing pgrp */ 2189 match = (p->p_pgrp->pg_id == (pid_t)arg); 2190 break; 2191 2192 case KERN_PROC_SESSION: 2193 match = (p->p_session->s_sid == (pid_t)arg); 2194 break; 2195 2196 case KERN_PROC_TTY: 2197 match = true; 2198 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2199 if ((p->p_lflag & PL_CONTROLT) == 0 || 2200 p->p_session->s_ttyp == NULL || 2201 p->p_session->s_ttyvp != NULL) { 2202 match = false; 2203 } 2204 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2205 p->p_session->s_ttyp == NULL) { 2206 if ((dev_t)arg != KERN_PROC_TTY_NODEV) { 2207 match = false; 2208 } 2209 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) { 2210 match = false; 2211 } 2212 break; 2213 2214 case KERN_PROC_UID: 2215 match = (kauth_cred_geteuid(p->p_cred) == (uid_t)arg); 2216 break; 2217 2218 case KERN_PROC_RUID: 2219 match = (kauth_cred_getuid(p->p_cred) == (uid_t)arg); 2220 break; 2221 2222 case KERN_PROC_GID: 2223 match = (kauth_cred_getegid(p->p_cred) == (uid_t)arg); 2224 break; 2225 2226 case KERN_PROC_RGID: 2227 match = (kauth_cred_getgid(p->p_cred) == (uid_t)arg); 2228 break; 2229 2230 case KERN_PROC_ALL: 2231 match = true; 2232 /* allow everything */ 2233 break; 2234 2235 default: 2236 error = EINVAL; 2237 mutex_exit(&p->p_mutex); 2238 goto cleanup; 2239 } 2240 if (!match) { 2241 mutex_exit(&p->p_mutex); 2242 continue; 2243 } 2244 2245 /* 2246 * Grab a hold on the process. 2247 */ 2248 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 2249 mutex_exit(&p->p_mutex); 2250 continue; 2251 } 2252 2253 if (type == KERN_PROC) { 2254 if (buflen >= sizeof(struct kinfo_proc)) { 2255 fill_eproc(p, eproc); 2256 mutex_exit(&p->p_mutex); 2257 mutex_exit(&proclist_lock); 2258 error = dcopyout(l, p, &dp->kp_proc, 2259 sizeof(struct proc)); 2260 mutex_enter(&proclist_lock); 2261 if (error) 2262 goto cleanup; 2263 error = dcopyout(l, eproc, &dp->kp_eproc, 2264 sizeof(*eproc)); 2265 if (error) 2266 goto cleanup; 2267 dp++; 2268 buflen -= sizeof(struct kinfo_proc); 2269 } else { 2270 mutex_exit(&p->p_mutex); 2271 } 2272 needed += sizeof(struct kinfo_proc); 2273 } else { /* KERN_PROC2 */ 2274 if (buflen >= elem_size && elem_count > 0) { 2275 fill_kproc2(p, kproc2); 2276 mutex_exit(&p->p_mutex); 2277 mutex_exit(&proclist_lock); 2278 /* 2279 * Copy out elem_size, but not larger than 2280 * the size of a struct kinfo_proc2. 2281 */ 2282 error = dcopyout(l, kproc2, dp2, 2283 min(sizeof(*kproc2), elem_size)); 2284 mutex_enter(&proclist_lock); 2285 if (error) 2286 goto cleanup; 2287 dp2 += elem_size; 2288 buflen -= elem_size; 2289 elem_count--; 2290 } else { 2291 mutex_exit(&p->p_mutex); 2292 } 2293 needed += elem_size; 2294 } 2295 2296 /* 2297 * Release reference to process. 2298 */ 2299 rw_exit(&p->p_reflock); 2300 } 2301 mutex_exit(&proclist_lock); 2302 2303 if (where != NULL) { 2304 if (type == KERN_PROC) 2305 *oldlenp = (char *)dp - where; 2306 else 2307 *oldlenp = dp2 - where; 2308 if (needed > *oldlenp) { 2309 error = ENOMEM; 2310 goto out; 2311 } 2312 } else { 2313 needed += KERN_PROCSLOP; 2314 *oldlenp = needed; 2315 } 2316 if (kproc2) 2317 kmem_free(kproc2, sizeof(*kproc2)); 2318 if (eproc) 2319 kmem_free(eproc, sizeof(*eproc)); 2320 sysctl_relock(); 2321 return 0; 2322 cleanup: 2323 mutex_exit(&proclist_lock); 2324 out: 2325 if (kproc2) 2326 kmem_free(kproc2, sizeof(*kproc2)); 2327 if (eproc) 2328 kmem_free(eproc, sizeof(*eproc)); 2329 sysctl_relock(); 2330 return error; 2331 } 2332 2333 /* 2334 * sysctl helper routine for kern.proc_args pseudo-subtree. 2335 */ 2336 static int 2337 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2338 { 2339 struct ps_strings pss; 2340 struct proc *p; 2341 size_t len, i; 2342 struct uio auio; 2343 struct iovec aiov; 2344 pid_t pid; 2345 int nargv, type, error, argvlen; 2346 char *arg; 2347 char **argv = NULL; 2348 char *tmp; 2349 struct vmspace *vmspace; 2350 vaddr_t psstr_addr; 2351 vaddr_t offsetn; 2352 vaddr_t offsetv; 2353 2354 if (namelen == 1 && name[0] == CTL_QUERY) 2355 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2356 2357 if (newp != NULL || namelen != 2) 2358 return (EINVAL); 2359 pid = name[0]; 2360 type = name[1]; 2361 argv = NULL; 2362 argvlen = 0; 2363 2364 switch (type) { 2365 case KERN_PROC_ARGV: 2366 case KERN_PROC_NARGV: 2367 case KERN_PROC_ENV: 2368 case KERN_PROC_NENV: 2369 /* ok */ 2370 break; 2371 default: 2372 return (EINVAL); 2373 } 2374 2375 sysctl_unlock(); 2376 2377 /* check pid */ 2378 mutex_enter(&proclist_lock); 2379 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2380 error = EINVAL; 2381 goto out_locked; 2382 } 2383 mutex_enter(&p->p_mutex); 2384 error = kauth_authorize_process(l->l_cred, 2385 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2386 if (error) { 2387 mutex_exit(&p->p_mutex); 2388 goto out_locked; 2389 } 2390 2391 /* only root or same user change look at the environment */ 2392 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2393 if (kauth_authorize_generic(l->l_cred, KAUTH_GENERIC_ISSUSER, 2394 NULL) != 0) { 2395 if (kauth_cred_getuid(l->l_cred) != 2396 kauth_cred_getuid(p->p_cred) || 2397 kauth_cred_getuid(l->l_cred) != 2398 kauth_cred_getsvuid(p->p_cred)) { 2399 error = EPERM; 2400 mutex_exit(&p->p_mutex); 2401 goto out_locked; 2402 } 2403 } 2404 } 2405 2406 if (oldp == NULL) { 2407 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2408 *oldlenp = sizeof (int); 2409 else 2410 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2411 error = 0; 2412 mutex_exit(&p->p_mutex); 2413 goto out_locked; 2414 } 2415 2416 /* 2417 * Zombies don't have a stack, so we can't read their psstrings. 2418 * System processes also don't have a user stack. 2419 */ 2420 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2421 error = EINVAL; 2422 mutex_exit(&p->p_mutex); 2423 goto out_locked; 2424 } 2425 2426 /* 2427 * Lock the process down in memory. 2428 */ 2429 psstr_addr = (vaddr_t)p->p_psstr; 2430 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2431 offsetn = p->p_psnargv; 2432 offsetv = p->p_psargv; 2433 } else { 2434 offsetn = p->p_psnenv; 2435 offsetv = p->p_psenv; 2436 } 2437 vmspace = p->p_vmspace; 2438 uvmspace_addref(vmspace); 2439 mutex_exit(&p->p_mutex); 2440 mutex_exit(&proclist_lock); 2441 2442 /* 2443 * Allocate a temporary buffer to hold the arguments. 2444 */ 2445 arg = kmem_alloc(PAGE_SIZE, KM_SLEEP); 2446 2447 /* 2448 * Read in the ps_strings structure. 2449 */ 2450 aiov.iov_base = &pss; 2451 aiov.iov_len = sizeof(pss); 2452 auio.uio_iov = &aiov; 2453 auio.uio_iovcnt = 1; 2454 auio.uio_offset = psstr_addr; 2455 auio.uio_resid = sizeof(pss); 2456 auio.uio_rw = UIO_READ; 2457 UIO_SETUP_SYSSPACE(&auio); 2458 error = uvm_io(&vmspace->vm_map, &auio); 2459 if (error) 2460 goto done; 2461 2462 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2463 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2464 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2465 *oldlenp = sizeof(nargv); 2466 goto done; 2467 } 2468 /* 2469 * Now read the address of the argument vector. 2470 */ 2471 switch (type) { 2472 case KERN_PROC_ARGV: 2473 /* FALLTHROUGH */ 2474 case KERN_PROC_ENV: 2475 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2476 break; 2477 default: 2478 error = EINVAL; 2479 goto done; 2480 } 2481 2482 #ifdef COMPAT_NETBSD32 2483 if (p->p_flag & PK_32) 2484 len = sizeof(netbsd32_charp) * nargv; 2485 else 2486 #endif 2487 len = sizeof(char *) * nargv; 2488 2489 argv = kmem_alloc(len, KM_SLEEP); 2490 argvlen = len; 2491 2492 aiov.iov_base = argv; 2493 aiov.iov_len = len; 2494 auio.uio_iov = &aiov; 2495 auio.uio_iovcnt = 1; 2496 auio.uio_offset = (off_t)(unsigned long)tmp; 2497 auio.uio_resid = len; 2498 auio.uio_rw = UIO_READ; 2499 UIO_SETUP_SYSSPACE(&auio); 2500 error = uvm_io(&vmspace->vm_map, &auio); 2501 if (error) 2502 goto done; 2503 2504 /* 2505 * Now copy each string. 2506 */ 2507 len = 0; /* bytes written to user buffer */ 2508 for (i = 0; i < nargv; i++) { 2509 int finished = 0; 2510 vaddr_t base; 2511 size_t xlen; 2512 int j; 2513 2514 #ifdef COMPAT_NETBSD32 2515 if (p->p_flag & PK_32) { 2516 netbsd32_charp *argv32; 2517 2518 argv32 = (netbsd32_charp *)argv; 2519 2520 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2521 } else 2522 #endif 2523 base = (vaddr_t)argv[i]; 2524 2525 /* 2526 * The program has messed around with its arguments, 2527 * possibly deleting some, and replacing them with 2528 * NULL's. Treat this as the last argument and not 2529 * a failure. 2530 */ 2531 if (base == 0) 2532 break; 2533 2534 while (!finished) { 2535 xlen = PAGE_SIZE - (base & PAGE_MASK); 2536 2537 aiov.iov_base = arg; 2538 aiov.iov_len = PAGE_SIZE; 2539 auio.uio_iov = &aiov; 2540 auio.uio_iovcnt = 1; 2541 auio.uio_offset = base; 2542 auio.uio_resid = xlen; 2543 auio.uio_rw = UIO_READ; 2544 UIO_SETUP_SYSSPACE(&auio); 2545 error = uvm_io(&vmspace->vm_map, &auio); 2546 if (error) 2547 goto done; 2548 2549 /* Look for the end of the string */ 2550 for (j = 0; j < xlen; j++) { 2551 if (arg[j] == '\0') { 2552 xlen = j + 1; 2553 finished = 1; 2554 break; 2555 } 2556 } 2557 2558 /* Check for user buffer overflow */ 2559 if (len + xlen > *oldlenp) { 2560 finished = 1; 2561 if (len > *oldlenp) 2562 xlen = 0; 2563 else 2564 xlen = *oldlenp - len; 2565 } 2566 2567 /* Copyout the page */ 2568 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2569 if (error) 2570 goto done; 2571 2572 len += xlen; 2573 base += xlen; 2574 } 2575 } 2576 *oldlenp = len; 2577 2578 done: 2579 if (argv != NULL) 2580 kmem_free(argv, argvlen); 2581 uvmspace_free(vmspace); 2582 kmem_free(arg, PAGE_SIZE); 2583 sysctl_relock(); 2584 return error; 2585 2586 out_locked: 2587 mutex_exit(&proclist_lock); 2588 sysctl_relock(); 2589 return error; 2590 } 2591 2592 static int 2593 sysctl_security_setidcore(SYSCTLFN_ARGS) 2594 { 2595 int newsize, error; 2596 struct sysctlnode node; 2597 2598 node = *rnode; 2599 node.sysctl_data = &newsize; 2600 newsize = *(int *)rnode->sysctl_data; 2601 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2602 if (error || newp == NULL) 2603 return error; 2604 2605 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2606 0, NULL, NULL, NULL)) 2607 return (EPERM); 2608 2609 *(int *)rnode->sysctl_data = newsize; 2610 2611 return 0; 2612 } 2613 2614 static int 2615 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2616 { 2617 int error; 2618 char *newsetidcorename; 2619 struct sysctlnode node; 2620 2621 newsetidcorename = PNBUF_GET(); 2622 node = *rnode; 2623 node.sysctl_data = newsetidcorename; 2624 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2625 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2626 if (error || newp == NULL) { 2627 goto out; 2628 } 2629 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2630 0, NULL, NULL, NULL)) { 2631 error = EPERM; 2632 goto out; 2633 } 2634 if (strlen(newsetidcorename) == 0) { 2635 error = EINVAL; 2636 goto out; 2637 } 2638 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2639 out: 2640 PNBUF_PUT(newsetidcorename); 2641 return error; 2642 } 2643 2644 /* 2645 * sysctl helper routine for kern.cp_id node. Maps cpus to their 2646 * cpuids. 2647 */ 2648 static int 2649 sysctl_kern_cpid(SYSCTLFN_ARGS) 2650 { 2651 struct sysctlnode node = *rnode; 2652 uint64_t *cp_id = NULL; 2653 int error, n = ncpu; 2654 struct cpu_info *ci; 2655 CPU_INFO_ITERATOR cii; 2656 2657 /* 2658 * Here you may either retrieve a single cpu id or the whole 2659 * set. The size you get back when probing depends on what 2660 * you ask for. 2661 */ 2662 switch (namelen) { 2663 case 0: 2664 node.sysctl_size = n * sizeof(uint64_t); 2665 n = -2; /* ALL */ 2666 break; 2667 case 1: 2668 if (name[0] < 0 || name[0] >= n) 2669 return (ENOENT); /* ENOSUCHPROCESSOR */ 2670 node.sysctl_size = sizeof(uint64_t); 2671 n = name[0]; 2672 /* 2673 * adjust these so that sysctl_lookup() will be happy 2674 */ 2675 name++; 2676 namelen--; 2677 break; 2678 default: 2679 return (EINVAL); 2680 } 2681 2682 cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP); 2683 if (cp_id == NULL) 2684 return (ENOMEM); 2685 node.sysctl_data = cp_id; 2686 memset(cp_id, 0, node.sysctl_size); 2687 2688 for (CPU_INFO_FOREACH(cii, ci)) { 2689 if (n <= 0) 2690 cp_id[0] = ci->ci_cpuid; 2691 /* 2692 * if a specific processor was requested and we just 2693 * did it, we're done here 2694 */ 2695 if (n == 0) 2696 break; 2697 /* 2698 * if doing "all", skip to next cp_id slot for next processor 2699 */ 2700 if (n == -2) 2701 cp_id++; 2702 /* 2703 * if we're doing a specific processor, we're one 2704 * processor closer 2705 */ 2706 if (n > 0) 2707 n--; 2708 } 2709 2710 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2711 kmem_free(node.sysctl_data, node.sysctl_size); 2712 return (error); 2713 } 2714 2715 /* 2716 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 2717 * calculate on the fly taking into account integer overflow and the 2718 * current wired count. 2719 */ 2720 static int 2721 sysctl_hw_usermem(SYSCTLFN_ARGS) 2722 { 2723 u_int ui; 2724 u_quad_t uq; 2725 struct sysctlnode node; 2726 2727 node = *rnode; 2728 switch (rnode->sysctl_num) { 2729 case HW_USERMEM: 2730 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2731 ui = UINT_MAX; 2732 else 2733 ui *= PAGE_SIZE; 2734 node.sysctl_data = &ui; 2735 break; 2736 case HW_USERMEM64: 2737 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2738 node.sysctl_data = &uq; 2739 break; 2740 default: 2741 return (EINVAL); 2742 } 2743 2744 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2745 } 2746 2747 /* 2748 * sysctl helper routine for kern.cnmagic node. Pulls the old value 2749 * out, encoded, and stuffs the new value in for decoding. 2750 */ 2751 static int 2752 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2753 { 2754 char magic[CNS_LEN]; 2755 int error; 2756 struct sysctlnode node; 2757 2758 if (oldp) 2759 cn_get_magic(magic, CNS_LEN); 2760 node = *rnode; 2761 node.sysctl_data = &magic[0]; 2762 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2763 if (error || newp == NULL) 2764 return (error); 2765 2766 return (cn_set_magic(magic)); 2767 } 2768 2769 /* 2770 * ******************************************************************** 2771 * section 3: public helper routines that are used for more than one 2772 * node 2773 * ******************************************************************** 2774 */ 2775 2776 /* 2777 * sysctl helper routine for the kern.root_device node and some ports' 2778 * machdep.root_device nodes. 2779 */ 2780 int 2781 sysctl_root_device(SYSCTLFN_ARGS) 2782 { 2783 struct sysctlnode node; 2784 2785 node = *rnode; 2786 node.sysctl_data = root_device->dv_xname; 2787 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2788 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2789 } 2790 2791 /* 2792 * sysctl helper routine for kern.consdev, dependent on the current 2793 * state of the console. Also used for machdep.console_device on some 2794 * ports. 2795 */ 2796 int 2797 sysctl_consdev(SYSCTLFN_ARGS) 2798 { 2799 dev_t consdev; 2800 struct sysctlnode node; 2801 2802 if (cn_tab != NULL) 2803 consdev = cn_tab->cn_dev; 2804 else 2805 consdev = NODEV; 2806 node = *rnode; 2807 node.sysctl_data = &consdev; 2808 node.sysctl_size = sizeof(consdev); 2809 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2810 } 2811 2812 /* 2813 * ******************************************************************** 2814 * section 4: support for some helpers 2815 * ******************************************************************** 2816 */ 2817 2818 /* 2819 * Fill in a kinfo_proc2 structure for the specified process. 2820 */ 2821 static void 2822 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2823 { 2824 struct tty *tp; 2825 struct lwp *l, *l2; 2826 struct timeval ut, st, rt; 2827 sigset_t ss1, ss2; 2828 2829 KASSERT(mutex_owned(&proclist_lock)); 2830 KASSERT(mutex_owned(&p->p_mutex)); 2831 2832 memset(ki, 0, sizeof(*ki)); 2833 2834 ki->p_paddr = PTRTOUINT64(p); 2835 ki->p_fd = PTRTOUINT64(p->p_fd); 2836 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2837 ki->p_stats = PTRTOUINT64(p->p_stats); 2838 ki->p_limit = PTRTOUINT64(p->p_limit); 2839 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2840 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2841 ki->p_sess = PTRTOUINT64(p->p_session); 2842 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2843 ki->p_ru = PTRTOUINT64(&p->p_stats->p_ru); 2844 2845 ki->p_eflag = 0; 2846 ki->p_exitsig = p->p_exitsig; 2847 2848 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2849 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2850 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2851 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2852 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2853 2854 ki->p_pid = p->p_pid; 2855 if (p->p_pptr) 2856 ki->p_ppid = p->p_pptr->p_pid; 2857 else 2858 ki->p_ppid = 0; 2859 ki->p_sid = p->p_session->s_sid; 2860 ki->p__pgid = p->p_pgrp->pg_id; 2861 2862 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2863 2864 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2865 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2866 ki->p_gid = kauth_cred_getegid(p->p_cred); 2867 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2868 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2869 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2870 2871 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2872 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2873 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0])), 2874 UIO_SYSSPACE); 2875 2876 ki->p_jobc = p->p_pgrp->pg_jobc; 2877 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2878 ki->p_tdev = tp->t_dev; 2879 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2880 ki->p_tsess = PTRTOUINT64(tp->t_session); 2881 } else { 2882 ki->p_tdev = NODEV; 2883 } 2884 2885 mutex_enter(&p->p_smutex); 2886 2887 ki->p_uticks = p->p_uticks; 2888 ki->p_sticks = p->p_sticks; 2889 ki->p_iticks = p->p_iticks; 2890 2891 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2892 ki->p_traceflag = p->p_traceflag; 2893 2894 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2895 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2896 2897 ki->p_cpticks = 0; 2898 ki->p_pctcpu = p->p_pctcpu; 2899 ki->p_estcpu = 0; 2900 ss1 = p->p_sigpend.sp_set; 2901 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2902 /* This is hardly correct, but... */ 2903 sigplusset(&l->l_sigpend.sp_set, &ss1); 2904 sigplusset(&l->l_sigmask, &ss2); 2905 ki->p_cpticks += l->l_cpticks; 2906 ki->p_pctcpu += l->l_pctcpu; 2907 ki->p_estcpu += l->l_estcpu; 2908 } 2909 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2910 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2911 2912 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2913 ki->p_realstat = p->p_stat; 2914 ki->p_nice = p->p_nice; 2915 2916 ki->p_xstat = p->p_xstat; 2917 ki->p_acflag = p->p_acflag; 2918 2919 strncpy(ki->p_comm, p->p_comm, 2920 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2921 2922 strncpy(ki->p_login, p->p_session->s_login, 2923 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2924 2925 ki->p_nlwps = p->p_nlwps; 2926 ki->p_realflag = ki->p_flag; 2927 2928 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2929 ki->p_vm_rssize = 0; 2930 ki->p_vm_tsize = 0; 2931 ki->p_vm_dsize = 0; 2932 ki->p_vm_ssize = 0; 2933 ki->p_nrlwps = 0; 2934 l = NULL; 2935 } else { 2936 struct vmspace *vm = p->p_vmspace; 2937 int tmp; 2938 2939 ki->p_vm_rssize = vm_resident_count(vm); 2940 ki->p_vm_tsize = vm->vm_tsize; 2941 ki->p_vm_dsize = vm->vm_dsize; 2942 ki->p_vm_ssize = vm->vm_ssize; 2943 2944 /* Pick a "representative" LWP */ 2945 l = proc_representative_lwp(p, &tmp, 1); 2946 lwp_lock(l); 2947 ki->p_nrlwps = tmp; 2948 ki->p_forw = 0; 2949 ki->p_back = 0; 2950 ki->p_addr = PTRTOUINT64(l->l_addr); 2951 ki->p_stat = l->l_stat; 2952 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2953 ki->p_swtime = l->l_swtime; 2954 ki->p_slptime = l->l_slptime; 2955 if (l->l_stat == LSONPROC) 2956 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2957 else 2958 ki->p_schedflags = 0; 2959 ki->p_holdcnt = l->l_holdcnt; 2960 ki->p_priority = lwp_eprio(l); 2961 ki->p_usrpri = l->l_priority; 2962 if (l->l_wmesg) 2963 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2964 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2965 lwp_unlock(l); 2966 } 2967 if (p->p_session->s_ttyvp) 2968 ki->p_eflag |= EPROC_CTTY; 2969 if (SESS_LEADER(p)) 2970 ki->p_eflag |= EPROC_SLEADER; 2971 2972 /* XXX Is this double check necessary? */ 2973 if (P_ZOMBIE(p)) { 2974 ki->p_uvalid = 0; 2975 ki->p_rtime_sec = 0; 2976 ki->p_rtime_usec = 0; 2977 } else { 2978 ki->p_uvalid = 1; 2979 2980 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2981 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2982 2983 calcru(p, &ut, &st, NULL, &rt); 2984 ki->p_rtime_sec = rt.tv_sec; 2985 ki->p_rtime_usec = rt.tv_usec; 2986 ki->p_uutime_sec = ut.tv_sec; 2987 ki->p_uutime_usec = ut.tv_usec; 2988 ki->p_ustime_sec = st.tv_sec; 2989 ki->p_ustime_usec = st.tv_usec; 2990 2991 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2992 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2993 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2994 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2995 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2996 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2997 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2998 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2999 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 3000 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 3001 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 3002 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 3003 3004 ki->p_uru_nvcsw = 0; 3005 ki->p_uru_nivcsw = 0; 3006 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 3007 ki->p_uru_nvcsw += (l->l_ncsw - l->l_nivcsw); 3008 ki->p_uru_nivcsw += l->l_nivcsw; 3009 } 3010 3011 timeradd(&p->p_stats->p_cru.ru_utime, 3012 &p->p_stats->p_cru.ru_stime, &ut); 3013 ki->p_uctime_sec = ut.tv_sec; 3014 ki->p_uctime_usec = ut.tv_usec; 3015 } 3016 if (l != NULL) 3017 ki->p_cpuid = l->l_cpu->ci_cpuid; 3018 3019 mutex_exit(&p->p_smutex); 3020 } 3021 3022 /* 3023 * Fill in a kinfo_lwp structure for the specified lwp. 3024 */ 3025 static void 3026 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3027 { 3028 struct proc *p = l->l_proc; 3029 struct timeval tv; 3030 3031 kl->l_forw = 0; 3032 kl->l_back = 0; 3033 kl->l_laddr = PTRTOUINT64(l); 3034 kl->l_addr = PTRTOUINT64(l->l_addr); 3035 kl->l_stat = l->l_stat; 3036 kl->l_lid = l->l_lid; 3037 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 3038 3039 kl->l_swtime = l->l_swtime; 3040 kl->l_slptime = l->l_slptime; 3041 if (l->l_stat == LSONPROC) 3042 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3043 else 3044 kl->l_schedflags = 0; 3045 kl->l_holdcnt = l->l_holdcnt; 3046 kl->l_priority = lwp_eprio(l); 3047 kl->l_usrpri = l->l_priority; 3048 if (l->l_wmesg) 3049 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3050 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3051 kl->l_cpuid = l->l_cpu->ci_cpuid; 3052 bintime2timeval(&l->l_rtime, &tv); 3053 kl->l_rtime_sec = tv.tv_sec; 3054 kl->l_rtime_usec = tv.tv_usec; 3055 kl->l_cpticks = l->l_cpticks; 3056 kl->l_pctcpu = l->l_pctcpu; 3057 kl->l_pid = p->p_pid; 3058 if (l->l_name == NULL) 3059 kl->l_name[0] = '\0'; 3060 else 3061 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 3062 } 3063 3064 /* 3065 * Fill in an eproc structure for the specified process. 3066 */ 3067 void 3068 fill_eproc(struct proc *p, struct eproc *ep) 3069 { 3070 struct tty *tp; 3071 struct lwp *l; 3072 3073 KASSERT(mutex_owned(&proclist_lock)); 3074 KASSERT(mutex_owned(&p->p_mutex)); 3075 3076 ep->e_paddr = p; 3077 ep->e_sess = p->p_session; 3078 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 3079 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 3080 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 3081 ep->e_vm.vm_rssize = 0; 3082 ep->e_vm.vm_tsize = 0; 3083 ep->e_vm.vm_dsize = 0; 3084 ep->e_vm.vm_ssize = 0; 3085 /* ep->e_vm.vm_pmap = XXX; */ 3086 } else { 3087 struct vmspace *vm = p->p_vmspace; 3088 3089 ep->e_vm.vm_rssize = vm_resident_count(vm); 3090 ep->e_vm.vm_tsize = vm->vm_tsize; 3091 ep->e_vm.vm_dsize = vm->vm_dsize; 3092 ep->e_vm.vm_ssize = vm->vm_ssize; 3093 3094 /* Pick a "representative" LWP */ 3095 mutex_enter(&p->p_smutex); 3096 l = proc_representative_lwp(p, NULL, 1); 3097 lwp_lock(l); 3098 if (l->l_wmesg) 3099 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3100 lwp_unlock(l); 3101 mutex_exit(&p->p_smutex); 3102 } 3103 if (p->p_pptr) 3104 ep->e_ppid = p->p_pptr->p_pid; 3105 else 3106 ep->e_ppid = 0; 3107 ep->e_pgid = p->p_pgrp->pg_id; 3108 ep->e_sid = ep->e_sess->s_sid; 3109 ep->e_jobc = p->p_pgrp->pg_jobc; 3110 if ((p->p_lflag & PL_CONTROLT) && 3111 (tp = ep->e_sess->s_ttyp)) { 3112 ep->e_tdev = tp->t_dev; 3113 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3114 ep->e_tsess = tp->t_session; 3115 } else 3116 ep->e_tdev = NODEV; 3117 3118 ep->e_xsize = ep->e_xrssize = 0; 3119 ep->e_xccount = ep->e_xswrss = 0; 3120 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3121 if (SESS_LEADER(p)) 3122 ep->e_flag |= EPROC_SLEADER; 3123 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3124 } 3125 3126 u_int 3127 sysctl_map_flags(const u_int *map, u_int word) 3128 { 3129 u_int rv; 3130 3131 for (rv = 0; *map != 0; map += 2) 3132 if ((word & map[0]) != 0) 3133 rv |= map[1]; 3134 3135 return rv; 3136 } 3137
Indexes created Sun Sep 21 20:09:37 GMT 2025