init_sysctl.c revision 1.125.2.1
1 /* $NetBSD: init_sysctl.c,v 1.125.2.1 2008/03/29 20:47:00 christos 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 1.125.2.1 2008/03/29 20:47:00 christos Exp $"); 41 42 #include "opt_sysv.h" 43 #include "opt_posix.h" 44 #include "opt_compat_netbsd32.h" 45 #include "opt_compat_netbsd.h" 46 #include "pty.h" 47 #include "rnd.h" 48 49 #include <sys/types.h> 50 #include <sys/param.h> 51 #include <sys/sysctl.h> 52 #include <sys/cpu.h> 53 #include <sys/errno.h> 54 #include <sys/systm.h> 55 #include <sys/kernel.h> 56 #include <sys/unistd.h> 57 #include <sys/disklabel.h> 58 #include <sys/rnd.h> 59 #include <sys/vnode.h> 60 #include <sys/mount.h> 61 #include <sys/namei.h> 62 #include <sys/msgbuf.h> 63 #include <dev/cons.h> 64 #include <sys/socketvar.h> 65 #include <sys/file.h> 66 #include <sys/filedesc.h> 67 #include <sys/tty.h> 68 #include <sys/malloc.h> 69 #include <sys/resource.h> 70 #include <sys/resourcevar.h> 71 #include <sys/exec.h> 72 #include <sys/conf.h> 73 #include <sys/device.h> 74 #include <sys/stat.h> 75 #include <sys/kauth.h> 76 #include <sys/ktrace.h> 77 78 #ifdef COMPAT_NETBSD32 79 #include <compat/netbsd32/netbsd32.h> 80 #endif 81 #ifdef COMPAT_50 82 #include <compat/sys/time.h> 83 #endif 84 85 #include <sys/cpu.h> 86 87 /* XXX this should not be here */ 88 int security_setidcore_dump; 89 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 90 uid_t security_setidcore_owner = 0; 91 gid_t security_setidcore_group = 0; 92 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 93 94 static const u_int sysctl_flagmap[] = { 95 PK_ADVLOCK, P_ADVLOCK, 96 PK_EXEC, P_EXEC, 97 PK_NOCLDWAIT, P_NOCLDWAIT, 98 PK_32, P_32, 99 PK_CLDSIGIGN, P_CLDSIGIGN, 100 PK_SUGID, P_SUGID, 101 0 102 }; 103 104 static const u_int sysctl_sflagmap[] = { 105 PS_NOCLDSTOP, P_NOCLDSTOP, 106 PS_PPWAIT, P_PPWAIT, 107 PS_WEXIT, P_WEXIT, 108 PS_STOPFORK, P_STOPFORK, 109 PS_STOPEXEC, P_STOPEXEC, 110 PS_STOPEXIT, P_STOPEXIT, 111 0 112 }; 113 114 static const u_int sysctl_slflagmap[] = { 115 PSL_TRACED, P_TRACED, 116 PSL_FSTRACE, P_FSTRACE, 117 PSL_CHTRACED, P_CHTRACED, 118 PSL_SYSCALL, P_SYSCALL, 119 0 120 }; 121 122 static const u_int sysctl_lflagmap[] = { 123 PL_CONTROLT, P_CONTROLT, 124 0 125 }; 126 127 static const u_int sysctl_stflagmap[] = { 128 PST_PROFIL, P_PROFIL, 129 0 130 131 }; 132 133 static const u_int sysctl_lwpflagmap[] = { 134 LW_INMEM, P_INMEM, 135 LW_SINTR, P_SINTR, 136 LW_SYSTEM, P_SYSTEM, 137 0 138 }; 139 140 static const u_int sysctl_lwpprflagmap[] = { 141 LPR_DETACHED, L_DETACHED, 142 0 143 }; 144 145 /* 146 * try over estimating by 5 procs/lwps 147 */ 148 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 149 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 150 151 static int dcopyout(struct lwp *, const void *, void *, size_t); 152 153 static int 154 dcopyout(struct lwp *l, const void *kaddr, void *uaddr, 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 file_t *, const fdfile_t *, 200 int, pid_t); 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 #ifdef COMPAT_50 449 { 450 extern struct timeval50 boottime50; 451 sysctl_createv(clog, 0, NULL, NULL, 452 CTLFLAG_PERMANENT, 453 CTLTYPE_STRUCT, "oboottime", 454 SYSCTL_DESCR("System boot time"), 455 NULL, 0, &boottime50, sizeof(boottime50), 456 CTL_KERN, KERN_OBOOTTIME, CTL_EOL); 457 } 458 #endif 459 sysctl_createv(clog, 0, NULL, NULL, 460 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 461 CTLTYPE_STRING, "domainname", 462 SYSCTL_DESCR("YP domain name"), 463 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 464 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 465 sysctl_createv(clog, 0, NULL, NULL, 466 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 467 CTLTYPE_INT, "maxpartitions", 468 SYSCTL_DESCR("Maximum number of partitions allowed per " 469 "disk"), 470 NULL, MAXPARTITIONS, NULL, 0, 471 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 472 sysctl_createv(clog, 0, NULL, NULL, 473 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 474 CTLTYPE_INT, "rawpartition", 475 SYSCTL_DESCR("Raw partition of a disk"), 476 NULL, RAW_PART, NULL, 0, 477 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 478 sysctl_createv(clog, 0, NULL, NULL, 479 CTLFLAG_PERMANENT, 480 CTLTYPE_STRUCT, "timex", NULL, 481 sysctl_notavail, 0, NULL, 0, 482 CTL_KERN, KERN_TIMEX, CTL_EOL); 483 sysctl_createv(clog, 0, NULL, NULL, 484 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 485 CTLTYPE_INT, "rtc_offset", 486 SYSCTL_DESCR("Offset of real time clock from UTC in " 487 "minutes"), 488 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 489 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 490 sysctl_createv(clog, 0, NULL, NULL, 491 CTLFLAG_PERMANENT, 492 CTLTYPE_STRING, "root_device", 493 SYSCTL_DESCR("Name of the root device"), 494 sysctl_root_device, 0, NULL, 0, 495 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 496 sysctl_createv(clog, 0, NULL, NULL, 497 CTLFLAG_PERMANENT, 498 CTLTYPE_INT, "msgbufsize", 499 SYSCTL_DESCR("Size of the kernel message buffer"), 500 sysctl_msgbuf, 0, NULL, 0, 501 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 502 sysctl_createv(clog, 0, NULL, NULL, 503 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 504 CTLTYPE_INT, "fsync", 505 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 506 "Synchronization Option is available on " 507 "this system"), 508 NULL, 1, NULL, 0, 509 CTL_KERN, KERN_FSYNC, CTL_EOL); 510 sysctl_createv(clog, 0, NULL, NULL, 511 CTLFLAG_PERMANENT, 512 CTLTYPE_NODE, "ipc", 513 SYSCTL_DESCR("SysV IPC options"), 514 NULL, 0, NULL, 0, 515 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 516 sysctl_createv(clog, 0, NULL, NULL, 517 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 518 CTLTYPE_INT, "sysvmsg", 519 SYSCTL_DESCR("System V style message support available"), 520 NULL, 521 #ifdef SYSVMSG 522 1, 523 #else /* SYSVMSG */ 524 0, 525 #endif /* SYSVMSG */ 526 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 527 sysctl_createv(clog, 0, NULL, NULL, 528 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 529 CTLTYPE_INT, "sysvsem", 530 SYSCTL_DESCR("System V style semaphore support " 531 "available"), NULL, 532 #ifdef SYSVSEM 533 1, 534 #else /* SYSVSEM */ 535 0, 536 #endif /* SYSVSEM */ 537 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 538 sysctl_createv(clog, 0, NULL, NULL, 539 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 540 CTLTYPE_INT, "sysvshm", 541 SYSCTL_DESCR("System V style shared memory support " 542 "available"), NULL, 543 #ifdef SYSVSHM 544 1, 545 #else /* SYSVSHM */ 546 0, 547 #endif /* SYSVSHM */ 548 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 549 sysctl_createv(clog, 0, NULL, NULL, 550 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 551 CTLTYPE_INT, "synchronized_io", 552 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 553 "I/O Option is available on this system"), 554 NULL, 1, NULL, 0, 555 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 556 sysctl_createv(clog, 0, NULL, NULL, 557 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 558 CTLTYPE_INT, "iov_max", 559 SYSCTL_DESCR("Maximum number of iovec structures per " 560 "process"), 561 NULL, IOV_MAX, NULL, 0, 562 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 563 sysctl_createv(clog, 0, NULL, NULL, 564 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 565 CTLTYPE_INT, "mapped_files", 566 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 567 "Files Option is available on this system"), 568 NULL, 1, NULL, 0, 569 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 570 sysctl_createv(clog, 0, NULL, NULL, 571 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 572 CTLTYPE_INT, "memlock", 573 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 574 "Locking Option is available on this " 575 "system"), 576 NULL, 1, NULL, 0, 577 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 578 sysctl_createv(clog, 0, NULL, NULL, 579 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 580 CTLTYPE_INT, "memlock_range", 581 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 582 "Locking Option is available on this " 583 "system"), 584 NULL, 1, NULL, 0, 585 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 586 sysctl_createv(clog, 0, NULL, NULL, 587 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 588 CTLTYPE_INT, "memory_protection", 589 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 590 "Protection Option is available on this " 591 "system"), 592 NULL, 1, NULL, 0, 593 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 594 sysctl_createv(clog, 0, NULL, NULL, 595 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 596 CTLTYPE_INT, "login_name_max", 597 SYSCTL_DESCR("Maximum login name length"), 598 NULL, LOGIN_NAME_MAX, NULL, 0, 599 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 600 sysctl_createv(clog, 0, NULL, NULL, 601 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 602 CTLTYPE_STRING, "defcorename", 603 SYSCTL_DESCR("Default core file name"), 604 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 605 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 606 sysctl_createv(clog, 0, NULL, NULL, 607 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 608 CTLTYPE_INT, "logsigexit", 609 SYSCTL_DESCR("Log process exit when caused by signals"), 610 NULL, 0, &kern_logsigexit, 0, 611 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 612 sysctl_createv(clog, 0, NULL, NULL, 613 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 614 CTLTYPE_INT, "fscale", 615 SYSCTL_DESCR("Kernel fixed-point scale factor"), 616 NULL, FSCALE, NULL, 0, 617 CTL_KERN, KERN_FSCALE, CTL_EOL); 618 sysctl_createv(clog, 0, NULL, NULL, 619 CTLFLAG_PERMANENT, 620 CTLTYPE_INT, "ccpu", 621 SYSCTL_DESCR("Scheduler exponential decay value"), 622 NULL, 0, &ccpu, 0, 623 CTL_KERN, KERN_CCPU, CTL_EOL); 624 sysctl_createv(clog, 0, NULL, NULL, 625 CTLFLAG_PERMANENT, 626 CTLTYPE_STRUCT, "cp_time", 627 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 628 sysctl_kern_cptime, 0, NULL, 0, 629 CTL_KERN, KERN_CP_TIME, CTL_EOL); 630 sysctl_createv(clog, 0, NULL, NULL, 631 CTLFLAG_PERMANENT, 632 CTLTYPE_INT, "msgbuf", 633 SYSCTL_DESCR("Kernel message buffer"), 634 sysctl_msgbuf, 0, NULL, 0, 635 CTL_KERN, KERN_MSGBUF, CTL_EOL); 636 sysctl_createv(clog, 0, NULL, NULL, 637 CTLFLAG_PERMANENT, 638 CTLTYPE_STRUCT, "consdev", 639 SYSCTL_DESCR("Console device"), 640 sysctl_consdev, 0, NULL, sizeof(dev_t), 641 CTL_KERN, KERN_CONSDEV, CTL_EOL); 642 #if NPTY > 0 643 sysctl_createv(clog, 0, NULL, NULL, 644 CTLFLAG_PERMANENT, 645 CTLTYPE_INT, "maxptys", 646 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 647 sysctl_kern_maxptys, 0, NULL, 0, 648 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 649 #endif /* NPTY > 0 */ 650 sysctl_createv(clog, 0, NULL, NULL, 651 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 652 CTLTYPE_INT, "maxphys", 653 SYSCTL_DESCR("Maximum raw I/O transfer size"), 654 NULL, MAXPHYS, NULL, 0, 655 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 656 sysctl_createv(clog, 0, NULL, NULL, 657 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 658 CTLTYPE_INT, "sbmax", 659 SYSCTL_DESCR("Maximum socket buffer size"), 660 sysctl_kern_sbmax, 0, NULL, 0, 661 CTL_KERN, KERN_SBMAX, CTL_EOL); 662 sysctl_createv(clog, 0, NULL, NULL, 663 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 664 CTLTYPE_INT, "monotonic_clock", 665 SYSCTL_DESCR("Implementation version of the POSIX " 666 "1003.1b Monotonic Clock Option"), 667 /* XXX _POSIX_VERSION */ 668 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 669 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 670 sysctl_createv(clog, 0, NULL, NULL, 671 CTLFLAG_PERMANENT, 672 CTLTYPE_INT, "urandom", 673 SYSCTL_DESCR("Random integer value"), 674 sysctl_kern_urnd, 0, NULL, 0, 675 CTL_KERN, KERN_URND, CTL_EOL); 676 sysctl_createv(clog, 0, NULL, NULL, 677 CTLFLAG_PERMANENT, 678 CTLTYPE_INT, "arandom", 679 SYSCTL_DESCR("n bytes of random data"), 680 sysctl_kern_arnd, 0, NULL, 0, 681 CTL_KERN, KERN_ARND, CTL_EOL); 682 sysctl_createv(clog, 0, NULL, NULL, 683 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 684 CTLTYPE_INT, "labelsector", 685 SYSCTL_DESCR("Sector number containing the disklabel"), 686 NULL, LABELSECTOR, NULL, 0, 687 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 688 sysctl_createv(clog, 0, NULL, NULL, 689 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 690 CTLTYPE_INT, "labeloffset", 691 SYSCTL_DESCR("Offset of the disklabel within the " 692 "sector"), 693 NULL, LABELOFFSET, NULL, 0, 694 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 695 sysctl_createv(clog, 0, NULL, NULL, 696 CTLFLAG_PERMANENT, 697 CTLTYPE_NODE, "lwp", 698 SYSCTL_DESCR("System-wide LWP information"), 699 sysctl_kern_lwp, 0, NULL, 0, 700 CTL_KERN, KERN_LWP, CTL_EOL); 701 sysctl_createv(clog, 0, NULL, NULL, 702 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 703 CTLTYPE_INT, "forkfsleep", 704 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 705 "to process limits"), 706 sysctl_kern_forkfsleep, 0, NULL, 0, 707 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 708 sysctl_createv(clog, 0, NULL, NULL, 709 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 710 CTLTYPE_INT, "posix_threads", 711 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 712 "Threads option to which the system " 713 "attempts to conform"), 714 /* XXX _POSIX_VERSION */ 715 NULL, _POSIX_THREADS, NULL, 0, 716 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 717 sysctl_createv(clog, 0, NULL, NULL, 718 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 719 CTLTYPE_INT, "posix_semaphores", 720 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 721 "Semaphores option to which the system " 722 "attempts to conform"), NULL, 723 #ifdef P1003_1B_SEMAPHORE 724 200112, 725 #else /* P1003_1B_SEMAPHORE */ 726 0, 727 #endif /* P1003_1B_SEMAPHORE */ 728 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 729 sysctl_createv(clog, 0, NULL, NULL, 730 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 731 CTLTYPE_INT, "posix_barriers", 732 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 733 "Barriers option to which the system " 734 "attempts to conform"), 735 /* XXX _POSIX_VERSION */ 736 NULL, _POSIX_BARRIERS, NULL, 0, 737 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 738 sysctl_createv(clog, 0, NULL, NULL, 739 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 740 CTLTYPE_INT, "posix_timers", 741 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 742 "Timers option to which the system " 743 "attempts to conform"), 744 /* XXX _POSIX_VERSION */ 745 NULL, _POSIX_TIMERS, NULL, 0, 746 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 747 sysctl_createv(clog, 0, NULL, NULL, 748 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 749 CTLTYPE_INT, "posix_spin_locks", 750 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 751 "Locks option to which the system attempts " 752 "to conform"), 753 /* XXX _POSIX_VERSION */ 754 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 755 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 756 sysctl_createv(clog, 0, NULL, NULL, 757 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 758 CTLTYPE_INT, "posix_reader_writer_locks", 759 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 760 "Read-Write Locks option to which the " 761 "system attempts to conform"), 762 /* XXX _POSIX_VERSION */ 763 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 764 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 765 sysctl_createv(clog, 0, NULL, NULL, 766 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 767 CTLTYPE_INT, "dump_on_panic", 768 SYSCTL_DESCR("Perform a crash dump on system panic"), 769 NULL, 0, &dumponpanic, 0, 770 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 771 #ifdef DIAGNOSTIC 772 sysctl_createv(clog, 0, NULL, NULL, 773 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 774 CTLTYPE_INT, "panic_now", 775 SYSCTL_DESCR("Trigger a panic"), 776 sysctl_kern_trigger_panic, 0, NULL, 0, 777 CTL_KERN, CTL_CREATE, CTL_EOL); 778 #endif 779 sysctl_createv(clog, 0, NULL, NULL, 780 CTLFLAG_PERMANENT, 781 CTLTYPE_INT, "root_partition", 782 SYSCTL_DESCR("Root partition on the root device"), 783 sysctl_kern_root_partition, 0, NULL, 0, 784 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 785 sysctl_createv(clog, 0, NULL, NULL, 786 CTLFLAG_PERMANENT, 787 CTLTYPE_STRUCT, "drivers", 788 SYSCTL_DESCR("List of all drivers with block and " 789 "character device numbers"), 790 sysctl_kern_drivers, 0, NULL, 0, 791 CTL_KERN, KERN_DRIVERS, CTL_EOL); 792 sysctl_createv(clog, 0, NULL, NULL, 793 CTLFLAG_PERMANENT, 794 CTLTYPE_STRUCT, "file2", 795 SYSCTL_DESCR("System open file table"), 796 sysctl_kern_file2, 0, NULL, 0, 797 CTL_KERN, KERN_FILE2, CTL_EOL); 798 sysctl_createv(clog, 0, NULL, NULL, 799 CTLFLAG_PERMANENT, 800 CTLTYPE_STRUCT, "cp_id", 801 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 802 sysctl_kern_cpid, 0, NULL, 0, 803 CTL_KERN, KERN_CP_ID, CTL_EOL); 804 sysctl_createv(clog, 0, NULL, &rnode, 805 CTLFLAG_PERMANENT, 806 CTLTYPE_NODE, "coredump", 807 SYSCTL_DESCR("Coredump settings."), 808 NULL, 0, NULL, 0, 809 CTL_KERN, CTL_CREATE, CTL_EOL); 810 sysctl_createv(clog, 0, &rnode, &rnode, 811 CTLFLAG_PERMANENT, 812 CTLTYPE_NODE, "setid", 813 SYSCTL_DESCR("Set-id processes' coredump settings."), 814 NULL, 0, NULL, 0, 815 CTL_CREATE, CTL_EOL); 816 sysctl_createv(clog, 0, &rnode, NULL, 817 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 818 CTLTYPE_INT, "dump", 819 SYSCTL_DESCR("Allow set-id processes to dump core."), 820 sysctl_security_setidcore, 0, &security_setidcore_dump, 821 sizeof(security_setidcore_dump), 822 CTL_CREATE, CTL_EOL); 823 sysctl_createv(clog, 0, &rnode, NULL, 824 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 825 CTLTYPE_STRING, "path", 826 SYSCTL_DESCR("Path pattern for set-id coredumps."), 827 sysctl_security_setidcorename, 0, 828 &security_setidcore_path, 829 sizeof(security_setidcore_path), 830 CTL_CREATE, CTL_EOL); 831 sysctl_createv(clog, 0, &rnode, NULL, 832 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 833 CTLTYPE_INT, "owner", 834 SYSCTL_DESCR("Owner id for set-id processes' cores."), 835 sysctl_security_setidcore, 0, &security_setidcore_owner, 836 0, 837 CTL_CREATE, CTL_EOL); 838 sysctl_createv(clog, 0, &rnode, NULL, 839 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 840 CTLTYPE_INT, "group", 841 SYSCTL_DESCR("Group id for set-id processes' cores."), 842 sysctl_security_setidcore, 0, &security_setidcore_group, 843 0, 844 CTL_CREATE, CTL_EOL); 845 sysctl_createv(clog, 0, &rnode, NULL, 846 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 847 CTLTYPE_INT, "mode", 848 SYSCTL_DESCR("Mode for set-id processes' cores."), 849 sysctl_security_setidcore, 0, &security_setidcore_mode, 850 0, 851 CTL_CREATE, CTL_EOL); 852 sysctl_createv(clog, 0, NULL, NULL, 853 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 854 CTLTYPE_INT, "no_sa_support", 855 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"), 856 NULL, 1, NULL, 0, 857 CTL_KERN, CTL_CREATE, CTL_EOL); 858 } 859 860 SYSCTL_SETUP(sysctl_kern_proc_setup, 861 "sysctl kern.proc/proc2/proc_args subtree setup") 862 { 863 864 sysctl_createv(clog, 0, NULL, NULL, 865 CTLFLAG_PERMANENT, 866 CTLTYPE_NODE, "kern", NULL, 867 NULL, 0, NULL, 0, 868 CTL_KERN, CTL_EOL); 869 870 sysctl_createv(clog, 0, NULL, NULL, 871 CTLFLAG_PERMANENT, 872 CTLTYPE_NODE, "proc", 873 SYSCTL_DESCR("System-wide process information"), 874 sysctl_doeproc, 0, NULL, 0, 875 CTL_KERN, KERN_PROC, CTL_EOL); 876 sysctl_createv(clog, 0, NULL, NULL, 877 CTLFLAG_PERMANENT, 878 CTLTYPE_NODE, "proc2", 879 SYSCTL_DESCR("Machine-independent process information"), 880 sysctl_doeproc, 0, NULL, 0, 881 CTL_KERN, KERN_PROC2, CTL_EOL); 882 sysctl_createv(clog, 0, NULL, NULL, 883 CTLFLAG_PERMANENT, 884 CTLTYPE_NODE, "proc_args", 885 SYSCTL_DESCR("Process argument information"), 886 sysctl_kern_proc_args, 0, NULL, 0, 887 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 888 889 /* 890 "nodes" under these: 891 892 KERN_PROC_ALL 893 KERN_PROC_PID pid 894 KERN_PROC_PGRP pgrp 895 KERN_PROC_SESSION sess 896 KERN_PROC_TTY tty 897 KERN_PROC_UID uid 898 KERN_PROC_RUID uid 899 KERN_PROC_GID gid 900 KERN_PROC_RGID gid 901 902 all in all, probably not worth the effort... 903 */ 904 } 905 906 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 907 { 908 u_int u; 909 u_quad_t q; 910 911 sysctl_createv(clog, 0, NULL, NULL, 912 CTLFLAG_PERMANENT, 913 CTLTYPE_NODE, "hw", NULL, 914 NULL, 0, NULL, 0, 915 CTL_HW, CTL_EOL); 916 917 sysctl_createv(clog, 0, NULL, NULL, 918 CTLFLAG_PERMANENT, 919 CTLTYPE_STRING, "machine", 920 SYSCTL_DESCR("Machine class"), 921 NULL, 0, machine, 0, 922 CTL_HW, HW_MACHINE, CTL_EOL); 923 sysctl_createv(clog, 0, NULL, NULL, 924 CTLFLAG_PERMANENT, 925 CTLTYPE_STRING, "model", 926 SYSCTL_DESCR("Machine model"), 927 NULL, 0, cpu_model, 0, 928 CTL_HW, HW_MODEL, CTL_EOL); 929 sysctl_createv(clog, 0, NULL, NULL, 930 CTLFLAG_PERMANENT, 931 CTLTYPE_INT, "ncpu", 932 SYSCTL_DESCR("Number of CPUs configured"), 933 NULL, 0, &ncpu, 0, 934 CTL_HW, HW_NCPU, CTL_EOL); 935 sysctl_createv(clog, 0, NULL, NULL, 936 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 937 CTLTYPE_INT, "byteorder", 938 SYSCTL_DESCR("System byte order"), 939 NULL, BYTE_ORDER, NULL, 0, 940 CTL_HW, HW_BYTEORDER, CTL_EOL); 941 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 942 UINT_MAX : physmem * PAGE_SIZE; 943 sysctl_createv(clog, 0, NULL, NULL, 944 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 945 CTLTYPE_INT, "physmem", 946 SYSCTL_DESCR("Bytes of physical memory"), 947 NULL, u, NULL, 0, 948 CTL_HW, HW_PHYSMEM, CTL_EOL); 949 sysctl_createv(clog, 0, NULL, NULL, 950 CTLFLAG_PERMANENT, 951 CTLTYPE_INT, "usermem", 952 SYSCTL_DESCR("Bytes of non-kernel memory"), 953 sysctl_hw_usermem, 0, NULL, 0, 954 CTL_HW, HW_USERMEM, CTL_EOL); 955 sysctl_createv(clog, 0, NULL, NULL, 956 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 957 CTLTYPE_INT, "pagesize", 958 SYSCTL_DESCR("Software page size"), 959 NULL, PAGE_SIZE, NULL, 0, 960 CTL_HW, HW_PAGESIZE, CTL_EOL); 961 sysctl_createv(clog, 0, NULL, NULL, 962 CTLFLAG_PERMANENT, 963 CTLTYPE_STRING, "machine_arch", 964 SYSCTL_DESCR("Machine CPU class"), 965 NULL, 0, machine_arch, 0, 966 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 967 sysctl_createv(clog, 0, NULL, NULL, 968 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 969 CTLTYPE_INT, "alignbytes", 970 SYSCTL_DESCR("Alignment constraint for all possible " 971 "data types"), 972 NULL, ALIGNBYTES, NULL, 0, 973 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 974 sysctl_createv(clog, 0, NULL, NULL, 975 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 976 CTLTYPE_STRING, "cnmagic", 977 SYSCTL_DESCR("Console magic key sequence"), 978 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 979 CTL_HW, HW_CNMAGIC, CTL_EOL); 980 q = (u_quad_t)physmem * PAGE_SIZE; 981 sysctl_createv(clog, 0, NULL, NULL, 982 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 983 CTLTYPE_QUAD, "physmem64", 984 SYSCTL_DESCR("Bytes of physical memory"), 985 NULL, q, NULL, 0, 986 CTL_HW, HW_PHYSMEM64, CTL_EOL); 987 sysctl_createv(clog, 0, NULL, NULL, 988 CTLFLAG_PERMANENT, 989 CTLTYPE_QUAD, "usermem64", 990 SYSCTL_DESCR("Bytes of non-kernel memory"), 991 sysctl_hw_usermem, 0, NULL, 0, 992 CTL_HW, HW_USERMEM64, CTL_EOL); 993 sysctl_createv(clog, 0, NULL, NULL, 994 CTLFLAG_PERMANENT, 995 CTLTYPE_INT, "ncpuonline", 996 SYSCTL_DESCR("Number of CPUs online"), 997 NULL, 0, &ncpuonline, 0, 998 CTL_HW, HW_NCPUONLINE, CTL_EOL); 999 } 1000 1001 #ifdef DEBUG 1002 /* 1003 * Debugging related system variables. 1004 */ 1005 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 1006 struct ctldebug debug5, debug6, debug7, debug8, debug9; 1007 struct ctldebug debug10, debug11, debug12, debug13, debug14; 1008 struct ctldebug debug15, debug16, debug17, debug18, debug19; 1009 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 1010 &debug0, &debug1, &debug2, &debug3, &debug4, 1011 &debug5, &debug6, &debug7, &debug8, &debug9, 1012 &debug10, &debug11, &debug12, &debug13, &debug14, 1013 &debug15, &debug16, &debug17, &debug18, &debug19, 1014 }; 1015 1016 /* 1017 * this setup routine is a replacement for debug_sysctl() 1018 * 1019 * note that it creates several nodes per defined debug variable 1020 */ 1021 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1022 { 1023 struct ctldebug *cdp; 1024 char nodename[20]; 1025 int i; 1026 1027 /* 1028 * two ways here: 1029 * 1030 * the "old" way (debug.name -> value) which was emulated by 1031 * the sysctl(8) binary 1032 * 1033 * the new way, which the sysctl(8) binary was actually using 1034 1035 node debug 1036 node debug.0 1037 string debug.0.name 1038 int debug.0.value 1039 int debug.name 1040 1041 */ 1042 1043 sysctl_createv(clog, 0, NULL, NULL, 1044 CTLFLAG_PERMANENT, 1045 CTLTYPE_NODE, "debug", NULL, 1046 NULL, 0, NULL, 0, 1047 CTL_DEBUG, CTL_EOL); 1048 1049 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1050 cdp = debugvars[i]; 1051 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1052 continue; 1053 1054 snprintf(nodename, sizeof(nodename), "debug%d", i); 1055 sysctl_createv(clog, 0, NULL, NULL, 1056 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1057 CTLTYPE_NODE, nodename, NULL, 1058 NULL, 0, NULL, 0, 1059 CTL_DEBUG, i, CTL_EOL); 1060 sysctl_createv(clog, 0, NULL, NULL, 1061 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1062 CTLTYPE_STRING, "name", NULL, 1063 /*XXXUNCONST*/ 1064 NULL, 0, __UNCONST(cdp->debugname), 0, 1065 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1066 sysctl_createv(clog, 0, NULL, NULL, 1067 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1068 CTLTYPE_INT, "value", NULL, 1069 NULL, 0, cdp->debugvar, 0, 1070 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1071 sysctl_createv(clog, 0, NULL, NULL, 1072 CTLFLAG_PERMANENT, 1073 CTLTYPE_INT, cdp->debugname, NULL, 1074 NULL, 0, cdp->debugvar, 0, 1075 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1076 } 1077 } 1078 #endif /* DEBUG */ 1079 1080 /* 1081 * ******************************************************************** 1082 * section 2: private node-specific helper routines. 1083 * ******************************************************************** 1084 */ 1085 1086 #ifdef DIAGNOSTIC 1087 static int 1088 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1089 { 1090 int newtrig, error; 1091 struct sysctlnode node; 1092 1093 newtrig = 0; 1094 node = *rnode; 1095 node.sysctl_data = &newtrig; 1096 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1097 if (error || newp == NULL) 1098 return (error); 1099 1100 if (newtrig != 0) 1101 panic("Panic triggered"); 1102 1103 return (error); 1104 } 1105 #endif 1106 1107 /* 1108 * sysctl helper routine for kern.maxvnodes. Drain vnodes if 1109 * new value is lower than desiredvnodes and then calls reinit 1110 * routines that needs to adjust to the new value. 1111 */ 1112 static int 1113 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1114 { 1115 int error, new_vnodes, old_vnodes; 1116 struct sysctlnode node; 1117 1118 new_vnodes = desiredvnodes; 1119 node = *rnode; 1120 node.sysctl_data = &new_vnodes; 1121 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1122 if (error || newp == NULL) 1123 return (error); 1124 1125 old_vnodes = desiredvnodes; 1126 desiredvnodes = new_vnodes; 1127 if (new_vnodes < old_vnodes) { 1128 error = vfs_drainvnodes(new_vnodes, l); 1129 if (error) { 1130 desiredvnodes = old_vnodes; 1131 return (error); 1132 } 1133 } 1134 vfs_reinit(); 1135 nchreinit(); 1136 1137 return (0); 1138 } 1139 1140 /* 1141 * sysctl helper routine for rtc_offset - set time after changes 1142 */ 1143 static int 1144 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1145 { 1146 struct timespec ts, delta; 1147 int error, new_rtc_offset; 1148 struct sysctlnode node; 1149 1150 new_rtc_offset = rtc_offset; 1151 node = *rnode; 1152 node.sysctl_data = &new_rtc_offset; 1153 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1154 if (error || newp == NULL) 1155 return (error); 1156 1157 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1158 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1159 KAUTH_ARG(new_rtc_offset), NULL, NULL)) 1160 return (EPERM); 1161 if (rtc_offset == new_rtc_offset) 1162 return (0); 1163 1164 /* if we change the offset, adjust the time */ 1165 nanotime(&ts); 1166 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1167 delta.tv_nsec = 0; 1168 timespecadd(&ts, &delta, &ts); 1169 rtc_offset = new_rtc_offset; 1170 return (settime(l->l_proc, &ts)); 1171 } 1172 1173 /* 1174 * sysctl helper routine for kern.maxproc. Ensures that the new 1175 * values are not too low or too high. 1176 */ 1177 static int 1178 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1179 { 1180 int error, nmaxproc; 1181 struct sysctlnode node; 1182 1183 nmaxproc = maxproc; 1184 node = *rnode; 1185 node.sysctl_data = &nmaxproc; 1186 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1187 if (error || newp == NULL) 1188 return (error); 1189 1190 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1191 return (EINVAL); 1192 #ifdef __HAVE_CPU_MAXPROC 1193 if (nmaxproc > cpu_maxproc()) 1194 return (EINVAL); 1195 #endif 1196 maxproc = nmaxproc; 1197 1198 return (0); 1199 } 1200 1201 /* 1202 * sysctl helper function for kern.hostid. The hostid is a long, but 1203 * we export it as an int, so we need to give it a little help. 1204 */ 1205 static int 1206 sysctl_kern_hostid(SYSCTLFN_ARGS) 1207 { 1208 int error, inthostid; 1209 struct sysctlnode node; 1210 1211 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1212 node = *rnode; 1213 node.sysctl_data = &inthostid; 1214 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1215 if (error || newp == NULL) 1216 return (error); 1217 1218 hostid = (unsigned)inthostid; 1219 1220 return (0); 1221 } 1222 1223 /* 1224 * sysctl helper function for kern.hostname and kern.domainnname. 1225 * resets the relevant recorded length when the underlying name is 1226 * changed. 1227 */ 1228 static int 1229 sysctl_setlen(SYSCTLFN_ARGS) 1230 { 1231 int error; 1232 1233 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1234 if (error || newp == NULL) 1235 return (error); 1236 1237 switch (rnode->sysctl_num) { 1238 case KERN_HOSTNAME: 1239 hostnamelen = strlen((const char*)rnode->sysctl_data); 1240 break; 1241 case KERN_DOMAINNAME: 1242 domainnamelen = strlen((const char*)rnode->sysctl_data); 1243 break; 1244 } 1245 1246 return (0); 1247 } 1248 1249 /* 1250 * sysctl helper routine for kern.clockrate. Assembles a struct on 1251 * the fly to be returned to the caller. 1252 */ 1253 static int 1254 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1255 { 1256 struct clockinfo clkinfo; 1257 struct sysctlnode node; 1258 1259 clkinfo.tick = tick; 1260 clkinfo.tickadj = tickadj; 1261 clkinfo.hz = hz; 1262 clkinfo.profhz = profhz; 1263 clkinfo.stathz = stathz ? stathz : hz; 1264 1265 node = *rnode; 1266 node.sysctl_data = &clkinfo; 1267 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1268 } 1269 1270 1271 /* 1272 * sysctl helper routine for kern.file pseudo-subtree. 1273 */ 1274 static int 1275 sysctl_kern_file(SYSCTLFN_ARGS) 1276 { 1277 int error; 1278 size_t buflen; 1279 struct file *fp, *dp, *np, fbuf; 1280 char *start, *where; 1281 1282 start = where = oldp; 1283 buflen = *oldlenp; 1284 dp = NULL; 1285 1286 if (where == NULL) { 1287 /* 1288 * overestimate by 10 files 1289 */ 1290 *oldlenp = sizeof(filehead) + (nfiles + 10) * 1291 sizeof(struct file); 1292 return (0); 1293 } 1294 1295 /* 1296 * first dcopyout filehead 1297 */ 1298 if (buflen < sizeof(filehead)) { 1299 *oldlenp = 0; 1300 return (0); 1301 } 1302 sysctl_unlock(); 1303 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1304 if (error) { 1305 sysctl_relock(); 1306 return error; 1307 } 1308 buflen -= sizeof(filehead); 1309 where += sizeof(filehead); 1310 1311 /* 1312 * allocate dummy file descriptor to make position in list 1313 */ 1314 if ((dp = fgetdummy()) == NULL) { 1315 sysctl_relock(); 1316 return ENOMEM; 1317 } 1318 1319 /* 1320 * followed by an array of file structures 1321 */ 1322 mutex_enter(&filelist_lock); 1323 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1324 np = LIST_NEXT(fp, f_list); 1325 mutex_enter(&fp->f_lock); 1326 if (fp->f_count == 0) { 1327 mutex_exit(&fp->f_lock); 1328 continue; 1329 } 1330 /* 1331 * XXX Need to prevent that from being an alternative way 1332 * XXX to getting process information. 1333 */ 1334 if (kauth_authorize_generic(l->l_cred, 1335 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1336 mutex_exit(&fp->f_lock); 1337 continue; 1338 } 1339 if (buflen < sizeof(struct file)) { 1340 *oldlenp = where - start; 1341 mutex_exit(&fp->f_lock); 1342 error = ENOMEM; 1343 break; 1344 } 1345 memcpy(&fbuf, fp, sizeof(fbuf)); 1346 LIST_INSERT_AFTER(fp, dp, f_list); 1347 mutex_exit(&fp->f_lock); 1348 mutex_exit(&filelist_lock); 1349 error = dcopyout(l, &fbuf, where, sizeof(fbuf)); 1350 if (error) { 1351 mutex_enter(&filelist_lock); 1352 LIST_REMOVE(dp, f_list); 1353 break; 1354 } 1355 buflen -= sizeof(struct file); 1356 where += sizeof(struct file); 1357 mutex_enter(&filelist_lock); 1358 np = LIST_NEXT(dp, f_list); 1359 LIST_REMOVE(dp, f_list); 1360 } 1361 mutex_exit(&filelist_lock); 1362 *oldlenp = where - start; 1363 if (dp != NULL) 1364 fputdummy(dp); 1365 sysctl_relock(); 1366 return (error); 1367 } 1368 1369 /* 1370 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 1371 * former it merely checks the message buffer is set up. For the latter, 1372 * it also copies out the data if necessary. 1373 */ 1374 static int 1375 sysctl_msgbuf(SYSCTLFN_ARGS) 1376 { 1377 char *where = oldp; 1378 size_t len, maxlen; 1379 long beg, end; 1380 extern kmutex_t log_lock; 1381 int error; 1382 1383 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1384 msgbufenabled = 0; 1385 return (ENXIO); 1386 } 1387 1388 switch (rnode->sysctl_num) { 1389 case KERN_MSGBUFSIZE: { 1390 struct sysctlnode node = *rnode; 1391 int msg_bufs = (int)msgbufp->msg_bufs; 1392 node.sysctl_data = &msg_bufs; 1393 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1394 } 1395 case KERN_MSGBUF: 1396 break; 1397 default: 1398 return (EOPNOTSUPP); 1399 } 1400 1401 if (newp != NULL) 1402 return (EPERM); 1403 1404 if (oldp == NULL) { 1405 /* always return full buffer size */ 1406 *oldlenp = msgbufp->msg_bufs; 1407 return (0); 1408 } 1409 1410 sysctl_unlock(); 1411 1412 /* 1413 * First, copy from the write pointer to the end of 1414 * message buffer. 1415 */ 1416 error = 0; 1417 mutex_spin_enter(&log_lock); 1418 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1419 beg = msgbufp->msg_bufx; 1420 end = msgbufp->msg_bufs; 1421 mutex_spin_exit(&log_lock); 1422 1423 while (maxlen > 0) { 1424 len = MIN(end - beg, maxlen); 1425 if (len == 0) 1426 break; 1427 /* XXX unlocked, but hardly matters. */ 1428 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1429 if (error) 1430 break; 1431 where += len; 1432 maxlen -= len; 1433 1434 /* 1435 * ... then, copy from the beginning of message buffer to 1436 * the write pointer. 1437 */ 1438 beg = 0; 1439 end = msgbufp->msg_bufx; 1440 } 1441 1442 sysctl_relock(); 1443 return (error); 1444 } 1445 1446 /* 1447 * sysctl helper routine for kern.defcorename. In the case of a new 1448 * string being assigned, check that it's not a zero-length string. 1449 * (XXX the check in -current doesn't work, but do we really care?) 1450 */ 1451 static int 1452 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1453 { 1454 int error; 1455 char *newcorename; 1456 struct sysctlnode node; 1457 1458 newcorename = PNBUF_GET(); 1459 node = *rnode; 1460 node.sysctl_data = &newcorename[0]; 1461 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1462 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1463 if (error || newp == NULL) { 1464 goto done; 1465 } 1466 1467 /* 1468 * when sysctl_lookup() deals with a string, it's guaranteed 1469 * to come back nul terminated. So there. :) 1470 */ 1471 if (strlen(newcorename) == 0) { 1472 error = EINVAL; 1473 } else { 1474 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1475 error = 0; 1476 } 1477 done: 1478 PNBUF_PUT(newcorename); 1479 return error; 1480 } 1481 1482 /* 1483 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1484 * across all cpus. 1485 */ 1486 static int 1487 sysctl_kern_cptime(SYSCTLFN_ARGS) 1488 { 1489 struct sysctlnode node = *rnode; 1490 uint64_t *cp_time = NULL; 1491 int error, n = ncpu, i; 1492 struct cpu_info *ci; 1493 CPU_INFO_ITERATOR cii; 1494 1495 /* 1496 * if you specifically pass a buffer that is the size of the 1497 * sum, or if you are probing for the size, you get the "sum" 1498 * of cp_time (and the size thereof) across all processors. 1499 * 1500 * alternately, you can pass an additional mib number and get 1501 * cp_time for that particular processor. 1502 */ 1503 switch (namelen) { 1504 case 0: 1505 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1506 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1507 n = -1; /* SUM */ 1508 } 1509 else { 1510 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1511 n = -2; /* ALL */ 1512 } 1513 break; 1514 case 1: 1515 if (name[0] < 0 || name[0] >= n) 1516 return (ENOENT); /* ENOSUCHPROCESSOR */ 1517 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1518 n = name[0]; 1519 /* 1520 * adjust these so that sysctl_lookup() will be happy 1521 */ 1522 name++; 1523 namelen--; 1524 break; 1525 default: 1526 return (EINVAL); 1527 } 1528 1529 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); 1530 if (cp_time == NULL) 1531 return (ENOMEM); 1532 node.sysctl_data = cp_time; 1533 memset(cp_time, 0, node.sysctl_size); 1534 1535 for (CPU_INFO_FOREACH(cii, ci)) { 1536 if (n <= 0) { 1537 for (i = 0; i < CPUSTATES; i++) { 1538 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1539 } 1540 } 1541 /* 1542 * if a specific processor was requested and we just 1543 * did it, we're done here 1544 */ 1545 if (n == 0) 1546 break; 1547 /* 1548 * if doing "all", skip to next cp_time set for next processor 1549 */ 1550 if (n == -2) 1551 cp_time += CPUSTATES; 1552 /* 1553 * if we're doing a specific processor, we're one 1554 * processor closer 1555 */ 1556 if (n > 0) 1557 n--; 1558 } 1559 1560 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1561 kmem_free(node.sysctl_data, node.sysctl_size); 1562 return (error); 1563 } 1564 1565 #if NPTY > 0 1566 /* 1567 * sysctl helper routine for kern.maxptys. Ensures that any new value 1568 * is acceptable to the pty subsystem. 1569 */ 1570 static int 1571 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1572 { 1573 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1574 int error, xmax; 1575 struct sysctlnode node; 1576 1577 /* get current value of maxptys */ 1578 xmax = pty_maxptys(0, 0); 1579 1580 node = *rnode; 1581 node.sysctl_data = &xmax; 1582 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1583 if (error || newp == NULL) 1584 return (error); 1585 1586 if (xmax != pty_maxptys(xmax, 1)) 1587 return (EINVAL); 1588 1589 return (0); 1590 } 1591 #endif /* NPTY > 0 */ 1592 1593 /* 1594 * sysctl helper routine for kern.sbmax. Basically just ensures that 1595 * any new value is not too small. 1596 */ 1597 static int 1598 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1599 { 1600 int error, new_sbmax; 1601 struct sysctlnode node; 1602 1603 new_sbmax = sb_max; 1604 node = *rnode; 1605 node.sysctl_data = &new_sbmax; 1606 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1607 if (error || newp == NULL) 1608 return (error); 1609 1610 KERNEL_LOCK(1, NULL); 1611 error = sb_max_set(new_sbmax); 1612 KERNEL_UNLOCK_ONE(NULL); 1613 1614 return (error); 1615 } 1616 1617 /* 1618 * sysctl helper routine for kern.urandom node. Picks a random number 1619 * for you. 1620 */ 1621 static int 1622 sysctl_kern_urnd(SYSCTLFN_ARGS) 1623 { 1624 #if NRND > 0 1625 int v, rv; 1626 1627 KERNEL_LOCK(1, NULL); 1628 rv = rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY); 1629 KERNEL_UNLOCK_ONE(NULL); 1630 if (rv == sizeof(v)) { 1631 struct sysctlnode node = *rnode; 1632 node.sysctl_data = &v; 1633 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1634 } 1635 else 1636 return (EIO); /*XXX*/ 1637 #else 1638 return (EOPNOTSUPP); 1639 #endif 1640 } 1641 1642 /* 1643 * sysctl helper routine for kern.arandom node. Picks a random number 1644 * for you. 1645 */ 1646 static int 1647 sysctl_kern_arnd(SYSCTLFN_ARGS) 1648 { 1649 #if NRND > 0 1650 int error; 1651 void *v; 1652 struct sysctlnode node = *rnode; 1653 1654 if (*oldlenp == 0) 1655 return 0; 1656 if (*oldlenp > 8192) 1657 return E2BIG; 1658 1659 v = kmem_alloc(*oldlenp, KM_SLEEP); 1660 arc4randbytes(v, *oldlenp); 1661 node.sysctl_data = v; 1662 node.sysctl_size = *oldlenp; 1663 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1664 kmem_free(v, *oldlenp); 1665 return error; 1666 #else 1667 return (EOPNOTSUPP); 1668 #endif 1669 } 1670 /* 1671 * sysctl helper routine to do kern.lwp.* work. 1672 */ 1673 static int 1674 sysctl_kern_lwp(SYSCTLFN_ARGS) 1675 { 1676 struct kinfo_lwp klwp; 1677 struct proc *p; 1678 struct lwp *l2, *l3; 1679 char *where, *dp; 1680 int pid, elem_size, elem_count; 1681 int buflen, needed, error; 1682 bool gotit; 1683 1684 if (namelen == 1 && name[0] == CTL_QUERY) 1685 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1686 1687 dp = where = oldp; 1688 buflen = where != NULL ? *oldlenp : 0; 1689 error = needed = 0; 1690 1691 if (newp != NULL || namelen != 3) 1692 return (EINVAL); 1693 pid = name[0]; 1694 elem_size = name[1]; 1695 elem_count = name[2]; 1696 1697 sysctl_unlock(); 1698 if (pid == -1) { 1699 mutex_enter(&proclist_lock); 1700 LIST_FOREACH(p, &allproc, p_list) { 1701 /* Grab a hold on the process. */ 1702 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 1703 continue; 1704 } 1705 mutex_exit(&proclist_lock); 1706 1707 mutex_enter(&p->p_smutex); 1708 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1709 if (buflen >= elem_size && elem_count > 0) { 1710 lwp_lock(l2); 1711 fill_lwp(l2, &klwp); 1712 lwp_unlock(l2); 1713 mutex_exit(&p->p_smutex); 1714 1715 /* 1716 * Copy out elem_size, but not 1717 * larger than the size of a 1718 * struct kinfo_proc2. 1719 */ 1720 error = dcopyout(l, &klwp, dp, 1721 min(sizeof(klwp), elem_size)); 1722 if (error) { 1723 rw_exit(&p->p_reflock); 1724 goto cleanup; 1725 } 1726 mutex_enter(&p->p_smutex); 1727 LIST_FOREACH(l3, &p->p_lwps, 1728 l_sibling) { 1729 if (l2 == l3) 1730 break; 1731 } 1732 if (l3 == NULL) { 1733 mutex_exit(&p->p_smutex); 1734 rw_exit(&p->p_reflock); 1735 error = EAGAIN; 1736 goto cleanup; 1737 } 1738 dp += elem_size; 1739 buflen -= elem_size; 1740 elem_count--; 1741 } 1742 needed += elem_size; 1743 } 1744 mutex_exit(&p->p_smutex); 1745 1746 /* Drop reference to process. */ 1747 mutex_enter(&proclist_lock); 1748 rw_exit(&p->p_reflock); 1749 } 1750 mutex_exit(&proclist_lock); 1751 } else { 1752 mutex_enter(&proclist_lock); 1753 p = p_find(pid, PFIND_LOCKED); 1754 if (p == NULL) { 1755 error = ESRCH; 1756 mutex_exit(&proclist_lock); 1757 goto cleanup; 1758 } 1759 /* Grab a hold on the process. */ 1760 gotit = rw_tryenter(&p->p_reflock, RW_READER); 1761 mutex_exit(&proclist_lock); 1762 if (!gotit) { 1763 error = ESRCH; 1764 goto cleanup; 1765 } 1766 1767 mutex_enter(&p->p_smutex); 1768 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1769 if (buflen >= elem_size && elem_count > 0) { 1770 lwp_lock(l2); 1771 fill_lwp(l2, &klwp); 1772 lwp_unlock(l2); 1773 mutex_exit(&p->p_smutex); 1774 /* 1775 * Copy out elem_size, but not larger than 1776 * the size of a struct kinfo_proc2. 1777 */ 1778 error = dcopyout(l, &klwp, dp, 1779 min(sizeof(klwp), elem_size)); 1780 if (error) { 1781 rw_exit(&p->p_reflock); 1782 goto cleanup; 1783 } 1784 mutex_enter(&p->p_smutex); 1785 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1786 if (l2 == l3) 1787 break; 1788 } 1789 if (l3 == NULL) { 1790 mutex_exit(&p->p_smutex); 1791 rw_exit(&p->p_reflock); 1792 error = EAGAIN; 1793 goto cleanup; 1794 } 1795 dp += elem_size; 1796 buflen -= elem_size; 1797 elem_count--; 1798 } 1799 needed += elem_size; 1800 } 1801 mutex_exit(&p->p_smutex); 1802 1803 /* Drop reference to process. */ 1804 rw_exit(&p->p_reflock); 1805 } 1806 1807 if (where != NULL) { 1808 *oldlenp = dp - where; 1809 if (needed > *oldlenp) { 1810 sysctl_relock(); 1811 return (ENOMEM); 1812 } 1813 } else { 1814 needed += KERN_LWPSLOP; 1815 *oldlenp = needed; 1816 } 1817 error = 0; 1818 cleanup: 1819 sysctl_relock(); 1820 return (error); 1821 } 1822 1823 /* 1824 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1825 * given value is not too large or two small, and is at least one 1826 * timer tick if not zero. 1827 */ 1828 static int 1829 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1830 { 1831 /* userland sees value in ms, internally is in ticks */ 1832 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1833 int error, timo, lsleep; 1834 struct sysctlnode node; 1835 1836 lsleep = forkfsleep * 1000 / hz; 1837 node = *rnode; 1838 node.sysctl_data = &lsleep; 1839 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1840 if (error || newp == NULL) 1841 return (error); 1842 1843 /* refuse negative values, and overly 'long time' */ 1844 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1845 return (EINVAL); 1846 1847 timo = mstohz(lsleep); 1848 1849 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1850 if (lsleep != 0 && timo == 0) 1851 forkfsleep = 1; 1852 else 1853 forkfsleep = timo; 1854 1855 return (0); 1856 } 1857 1858 /* 1859 * sysctl helper routine for kern.root_partition 1860 */ 1861 static int 1862 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1863 { 1864 int rootpart = DISKPART(rootdev); 1865 struct sysctlnode node = *rnode; 1866 1867 node.sysctl_data = &rootpart; 1868 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1869 } 1870 1871 /* 1872 * sysctl helper function for kern.drivers 1873 */ 1874 static int 1875 sysctl_kern_drivers(SYSCTLFN_ARGS) 1876 { 1877 int error; 1878 size_t buflen; 1879 struct kinfo_drivers kd; 1880 char *start, *where; 1881 const char *dname; 1882 int i; 1883 extern struct devsw_conv *devsw_conv; 1884 extern int max_devsw_convs; 1885 extern kmutex_t devsw_lock; 1886 1887 if (newp != NULL || namelen != 0) 1888 return (EINVAL); 1889 1890 start = where = oldp; 1891 buflen = *oldlenp; 1892 if (where == NULL) { 1893 *oldlenp = max_devsw_convs * sizeof kd; 1894 return 0; 1895 } 1896 1897 /* 1898 * An array of kinfo_drivers structures 1899 */ 1900 error = 0; 1901 sysctl_unlock(); 1902 mutex_enter(&devsw_lock); 1903 for (i = 0; i < max_devsw_convs; i++) { 1904 dname = devsw_conv[i].d_name; 1905 if (dname == NULL) 1906 continue; 1907 if (buflen < sizeof kd) { 1908 error = ENOMEM; 1909 break; 1910 } 1911 memset(&kd, 0, sizeof(kd)); 1912 kd.d_bmajor = devsw_conv[i].d_bmajor; 1913 kd.d_cmajor = devsw_conv[i].d_cmajor; 1914 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1915 mutex_exit(&devsw_lock); 1916 error = dcopyout(l, &kd, where, sizeof kd); 1917 mutex_enter(&devsw_lock); 1918 if (error != 0) 1919 break; 1920 buflen -= sizeof kd; 1921 where += sizeof kd; 1922 } 1923 mutex_exit(&devsw_lock); 1924 sysctl_relock(); 1925 *oldlenp = where - start; 1926 return error; 1927 } 1928 1929 /* 1930 * sysctl helper function for kern.file2 1931 */ 1932 static int 1933 sysctl_kern_file2(SYSCTLFN_ARGS) 1934 { 1935 struct proc *p; 1936 struct file *fp, *tp, *np; 1937 struct filedesc *fd; 1938 struct kinfo_file kf; 1939 char *dp; 1940 u_int i, op; 1941 size_t len, needed, elem_size, out_size; 1942 int error, arg, elem_count; 1943 fdfile_t *ff; 1944 1945 if (namelen == 1 && name[0] == CTL_QUERY) 1946 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1947 1948 if (namelen != 4) 1949 return (EINVAL); 1950 1951 error = 0; 1952 dp = oldp; 1953 len = (oldp != NULL) ? *oldlenp : 0; 1954 op = name[0]; 1955 arg = name[1]; 1956 elem_size = name[2]; 1957 elem_count = name[3]; 1958 out_size = MIN(sizeof(kf), elem_size); 1959 needed = 0; 1960 1961 if (elem_size < 1 || elem_count < 0) 1962 return (EINVAL); 1963 1964 switch (op) { 1965 case KERN_FILE_BYFILE: 1966 /* 1967 * doesn't use arg so it must be zero 1968 */ 1969 if (arg != 0) 1970 return (EINVAL); 1971 sysctl_unlock(); 1972 /* 1973 * allocate dummy file descriptor to make position in list 1974 */ 1975 if ((tp = fgetdummy()) == NULL) { 1976 sysctl_relock(); 1977 return ENOMEM; 1978 } 1979 mutex_enter(&filelist_lock); 1980 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1981 np = LIST_NEXT(fp, f_list); 1982 mutex_enter(&fp->f_lock); 1983 if (fp->f_count == 0) { 1984 mutex_exit(&fp->f_lock); 1985 continue; 1986 } 1987 /* 1988 * XXX Need to prevent that from being an alternative 1989 * XXX way for getting process information. 1990 */ 1991 if (kauth_authorize_generic(l->l_cred, 1992 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1993 mutex_exit(&fp->f_lock); 1994 continue; 1995 } 1996 if (len >= elem_size && elem_count > 0) { 1997 fill_file(&kf, fp, NULL, 0, 0); 1998 LIST_INSERT_AFTER(fp, tp, f_list); 1999 mutex_exit(&fp->f_lock); 2000 mutex_exit(&filelist_lock); 2001 error = dcopyout(l, &kf, dp, out_size); 2002 mutex_enter(&filelist_lock); 2003 np = LIST_NEXT(tp, f_list); 2004 LIST_REMOVE(tp, f_list); 2005 if (error) { 2006 break; 2007 } 2008 dp += elem_size; 2009 len -= elem_size; 2010 } else { 2011 mutex_exit(&fp->f_lock); 2012 } 2013 if (elem_count > 0) { 2014 needed += elem_size; 2015 if (elem_count != INT_MAX) 2016 elem_count--; 2017 } 2018 } 2019 mutex_exit(&filelist_lock); 2020 fputdummy(tp); 2021 sysctl_relock(); 2022 break; 2023 case KERN_FILE_BYPID: 2024 if (arg < -1) 2025 /* -1 means all processes */ 2026 return (EINVAL); 2027 sysctl_unlock(); 2028 mutex_enter(&proclist_lock); 2029 LIST_FOREACH(p, &allproc, p_list) { 2030 if (p->p_stat == SIDL) { 2031 /* skip embryonic processes */ 2032 continue; 2033 } 2034 if (arg > 0 && p->p_pid != arg) { 2035 /* pick only the one we want */ 2036 /* XXX want 0 to mean "kernel files" */ 2037 continue; 2038 } 2039 mutex_enter(&p->p_mutex); 2040 error = kauth_authorize_process(l->l_cred, 2041 KAUTH_PROCESS_CANSEE, p, 2042 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_OPENFILES), 2043 NULL, NULL); 2044 mutex_exit(&p->p_mutex); 2045 if (error != 0) { 2046 continue; 2047 } 2048 2049 /* 2050 * Grab a hold on the process. 2051 */ 2052 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 2053 continue; 2054 } 2055 mutex_exit(&proclist_lock); 2056 2057 /* XXX Do we need to check permission per file? */ 2058 fd = p->p_fd; 2059 mutex_enter(&fd->fd_lock); 2060 for (i = 0; i < fd->fd_nfiles; i++) { 2061 if ((ff = fd->fd_ofiles[i]) == NULL) { 2062 continue; 2063 } 2064 mutex_enter(&ff->ff_lock); 2065 if ((fp = ff->ff_file) == NULL) { 2066 mutex_exit(&ff->ff_lock); 2067 continue; 2068 } 2069 if (len >= elem_size && elem_count > 0) { 2070 fill_file(&kf, fp, ff, i, p->p_pid); 2071 mutex_exit(&fp->f_lock); 2072 mutex_exit(&ff->ff_lock); 2073 mutex_exit(&fd->fd_lock); 2074 error = dcopyout(l, &kf, dp, out_size); 2075 mutex_enter(&fd->fd_lock); 2076 if (error) 2077 break; 2078 dp += elem_size; 2079 len -= elem_size; 2080 } else { 2081 mutex_exit(&fp->f_lock); 2082 mutex_exit(&ff->ff_lock); 2083 } 2084 if (elem_count > 0) { 2085 needed += elem_size; 2086 if (elem_count != INT_MAX) 2087 elem_count--; 2088 } 2089 } 2090 mutex_exit(&fd->fd_lock); 2091 2092 /* 2093 * Release reference to process. 2094 */ 2095 mutex_enter(&proclist_lock); 2096 rw_exit(&p->p_reflock); 2097 } 2098 mutex_exit(&proclist_lock); 2099 sysctl_relock(); 2100 break; 2101 default: 2102 return (EINVAL); 2103 } 2104 2105 if (oldp == NULL) 2106 needed += KERN_FILESLOP * elem_size; 2107 *oldlenp = needed; 2108 2109 return (error); 2110 } 2111 2112 static void 2113 fill_file(struct kinfo_file *kp, const file_t *fp, const fdfile_t *ff, 2114 int i, pid_t pid) 2115 { 2116 2117 memset(kp, 0, sizeof(*kp)); 2118 2119 kp->ki_fileaddr = PTRTOUINT64(fp); 2120 kp->ki_flag = fp->f_flag; 2121 kp->ki_iflags = fp->f_iflags; 2122 kp->ki_ftype = fp->f_type; 2123 kp->ki_count = fp->f_count; 2124 kp->ki_msgcount = fp->f_msgcount; 2125 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2126 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2127 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2128 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2129 kp->ki_foffset = fp->f_offset; 2130 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2131 2132 /* vnode information to glue this file to something */ 2133 if (fp->f_type == DTYPE_VNODE) { 2134 struct vnode *vp = (struct vnode *)fp->f_data; 2135 2136 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2137 kp->ki_vsize = vp->v_size; 2138 kp->ki_vtype = vp->v_type; 2139 kp->ki_vtag = vp->v_tag; 2140 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2141 } 2142 2143 /* process information when retrieved via KERN_FILE_BYPID */ 2144 if (ff != NULL) { 2145 kp->ki_pid = pid; 2146 kp->ki_fd = i; 2147 kp->ki_ofileflags = ff->ff_exclose; 2148 kp->ki_usecount = ff->ff_refcnt; 2149 } 2150 } 2151 2152 static int 2153 sysctl_doeproc(SYSCTLFN_ARGS) 2154 { 2155 struct eproc *eproc; 2156 struct kinfo_proc2 *kproc2; 2157 struct kinfo_proc *dp; 2158 struct proc *p; 2159 char *where, *dp2; 2160 int type, op, arg; 2161 u_int elem_size, elem_count; 2162 size_t buflen, needed; 2163 bool match; 2164 int error; 2165 2166 if (namelen == 1 && name[0] == CTL_QUERY) 2167 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2168 2169 dp = oldp; 2170 dp2 = where = oldp; 2171 buflen = where != NULL ? *oldlenp : 0; 2172 error = 0; 2173 needed = 0; 2174 type = rnode->sysctl_num; 2175 2176 if (type == KERN_PROC) { 2177 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2178 return (EINVAL); 2179 op = name[0]; 2180 if (op != KERN_PROC_ALL) 2181 arg = name[1]; 2182 else 2183 arg = 0; /* Quell compiler warning */ 2184 elem_size = elem_count = 0; /* Ditto */ 2185 } else { 2186 if (namelen != 4) 2187 return (EINVAL); 2188 op = name[0]; 2189 arg = name[1]; 2190 elem_size = name[2]; 2191 elem_count = name[3]; 2192 } 2193 2194 sysctl_unlock(); 2195 2196 if (type == KERN_PROC) { 2197 eproc = kmem_alloc(sizeof(*eproc), KM_SLEEP); 2198 kproc2 = NULL; 2199 } else { 2200 eproc = NULL; 2201 kproc2 = kmem_alloc(sizeof(*kproc2), KM_SLEEP); 2202 } 2203 2204 mutex_enter(&proclist_lock); 2205 LIST_FOREACH(p, &allproc, p_list) { 2206 /* 2207 * Skip embryonic processes. 2208 */ 2209 if (p->p_stat == SIDL) 2210 continue; 2211 2212 mutex_enter(&p->p_mutex); 2213 error = kauth_authorize_process(l->l_cred, 2214 KAUTH_PROCESS_CANSEE, p, 2215 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENTRY), NULL, NULL); 2216 if (error != 0) { 2217 mutex_exit(&p->p_mutex); 2218 continue; 2219 } 2220 2221 /* 2222 * TODO - make more efficient (see notes below). 2223 * do by session. 2224 */ 2225 switch (op) { 2226 case KERN_PROC_PID: 2227 /* could do this with just a lookup */ 2228 match = (p->p_pid == (pid_t)arg); 2229 break; 2230 2231 case KERN_PROC_PGRP: 2232 /* could do this by traversing pgrp */ 2233 match = (p->p_pgrp->pg_id == (pid_t)arg); 2234 break; 2235 2236 case KERN_PROC_SESSION: 2237 match = (p->p_session->s_sid == (pid_t)arg); 2238 break; 2239 2240 case KERN_PROC_TTY: 2241 match = true; 2242 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2243 if ((p->p_lflag & PL_CONTROLT) == 0 || 2244 p->p_session->s_ttyp == NULL || 2245 p->p_session->s_ttyvp != NULL) { 2246 match = false; 2247 } 2248 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2249 p->p_session->s_ttyp == NULL) { 2250 if ((dev_t)arg != KERN_PROC_TTY_NODEV) { 2251 match = false; 2252 } 2253 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) { 2254 match = false; 2255 } 2256 break; 2257 2258 case KERN_PROC_UID: 2259 match = (kauth_cred_geteuid(p->p_cred) == (uid_t)arg); 2260 break; 2261 2262 case KERN_PROC_RUID: 2263 match = (kauth_cred_getuid(p->p_cred) == (uid_t)arg); 2264 break; 2265 2266 case KERN_PROC_GID: 2267 match = (kauth_cred_getegid(p->p_cred) == (uid_t)arg); 2268 break; 2269 2270 case KERN_PROC_RGID: 2271 match = (kauth_cred_getgid(p->p_cred) == (uid_t)arg); 2272 break; 2273 2274 case KERN_PROC_ALL: 2275 match = true; 2276 /* allow everything */ 2277 break; 2278 2279 default: 2280 error = EINVAL; 2281 mutex_exit(&p->p_mutex); 2282 goto cleanup; 2283 } 2284 if (!match) { 2285 mutex_exit(&p->p_mutex); 2286 continue; 2287 } 2288 2289 /* 2290 * Grab a hold on the process. 2291 */ 2292 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 2293 mutex_exit(&p->p_mutex); 2294 continue; 2295 } 2296 2297 if (type == KERN_PROC) { 2298 if (buflen >= sizeof(struct kinfo_proc)) { 2299 fill_eproc(p, eproc); 2300 mutex_exit(&p->p_mutex); 2301 mutex_exit(&proclist_lock); 2302 error = dcopyout(l, p, &dp->kp_proc, 2303 sizeof(struct proc)); 2304 mutex_enter(&proclist_lock); 2305 if (error) { 2306 rw_exit(&p->p_reflock); 2307 goto cleanup; 2308 } 2309 error = dcopyout(l, eproc, &dp->kp_eproc, 2310 sizeof(*eproc)); 2311 if (error) { 2312 rw_exit(&p->p_reflock); 2313 goto cleanup; 2314 } 2315 dp++; 2316 buflen -= sizeof(struct kinfo_proc); 2317 } else { 2318 mutex_exit(&p->p_mutex); 2319 } 2320 needed += sizeof(struct kinfo_proc); 2321 } else { /* KERN_PROC2 */ 2322 if (buflen >= elem_size && elem_count > 0) { 2323 fill_kproc2(p, kproc2); 2324 mutex_exit(&p->p_mutex); 2325 mutex_exit(&proclist_lock); 2326 /* 2327 * Copy out elem_size, but not larger than 2328 * the size of a struct kinfo_proc2. 2329 */ 2330 error = dcopyout(l, kproc2, dp2, 2331 min(sizeof(*kproc2), elem_size)); 2332 mutex_enter(&proclist_lock); 2333 if (error) { 2334 rw_exit(&p->p_reflock); 2335 goto cleanup; 2336 } 2337 dp2 += elem_size; 2338 buflen -= elem_size; 2339 elem_count--; 2340 } else { 2341 mutex_exit(&p->p_mutex); 2342 } 2343 needed += elem_size; 2344 } 2345 2346 /* 2347 * Release reference to process. 2348 */ 2349 rw_exit(&p->p_reflock); 2350 } 2351 mutex_exit(&proclist_lock); 2352 2353 if (where != NULL) { 2354 if (type == KERN_PROC) 2355 *oldlenp = (char *)dp - where; 2356 else 2357 *oldlenp = dp2 - where; 2358 if (needed > *oldlenp) { 2359 error = ENOMEM; 2360 goto out; 2361 } 2362 } else { 2363 needed += KERN_PROCSLOP; 2364 *oldlenp = needed; 2365 } 2366 if (kproc2) 2367 kmem_free(kproc2, sizeof(*kproc2)); 2368 if (eproc) 2369 kmem_free(eproc, sizeof(*eproc)); 2370 sysctl_relock(); 2371 return 0; 2372 cleanup: 2373 mutex_exit(&proclist_lock); 2374 out: 2375 if (kproc2) 2376 kmem_free(kproc2, sizeof(*kproc2)); 2377 if (eproc) 2378 kmem_free(eproc, sizeof(*eproc)); 2379 sysctl_relock(); 2380 return error; 2381 } 2382 2383 /* 2384 * sysctl helper routine for kern.proc_args pseudo-subtree. 2385 */ 2386 static int 2387 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2388 { 2389 struct ps_strings pss; 2390 struct proc *p; 2391 size_t len, i; 2392 struct uio auio; 2393 struct iovec aiov; 2394 pid_t pid; 2395 int nargv, type, error, argvlen; 2396 char *arg; 2397 char **argv = NULL; 2398 char *tmp; 2399 struct vmspace *vmspace; 2400 vaddr_t psstr_addr; 2401 vaddr_t offsetn; 2402 vaddr_t offsetv; 2403 2404 if (namelen == 1 && name[0] == CTL_QUERY) 2405 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2406 2407 if (newp != NULL || namelen != 2) 2408 return (EINVAL); 2409 pid = name[0]; 2410 type = name[1]; 2411 argv = NULL; 2412 argvlen = 0; 2413 2414 switch (type) { 2415 case KERN_PROC_ARGV: 2416 case KERN_PROC_NARGV: 2417 case KERN_PROC_ENV: 2418 case KERN_PROC_NENV: 2419 /* ok */ 2420 break; 2421 default: 2422 return (EINVAL); 2423 } 2424 2425 sysctl_unlock(); 2426 2427 /* check pid */ 2428 mutex_enter(&proclist_lock); 2429 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2430 error = EINVAL; 2431 goto out_locked; 2432 } 2433 mutex_enter(&p->p_mutex); 2434 2435 /* Check permission. */ 2436 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2437 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2438 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ARGS), NULL, NULL); 2439 else if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) 2440 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2441 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENV), NULL, NULL); 2442 else 2443 error = EINVAL; /* XXXGCC */ 2444 if (error) { 2445 mutex_exit(&p->p_mutex); 2446 goto out_locked; 2447 } 2448 2449 if (oldp == NULL) { 2450 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2451 *oldlenp = sizeof (int); 2452 else 2453 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2454 error = 0; 2455 mutex_exit(&p->p_mutex); 2456 goto out_locked; 2457 } 2458 2459 /* 2460 * Zombies don't have a stack, so we can't read their psstrings. 2461 * System processes also don't have a user stack. 2462 */ 2463 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2464 error = EINVAL; 2465 mutex_exit(&p->p_mutex); 2466 goto out_locked; 2467 } 2468 2469 /* 2470 * Lock the process down in memory. 2471 */ 2472 psstr_addr = (vaddr_t)p->p_psstr; 2473 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2474 offsetn = p->p_psnargv; 2475 offsetv = p->p_psargv; 2476 } else { 2477 offsetn = p->p_psnenv; 2478 offsetv = p->p_psenv; 2479 } 2480 vmspace = p->p_vmspace; 2481 uvmspace_addref(vmspace); 2482 mutex_exit(&p->p_mutex); 2483 mutex_exit(&proclist_lock); 2484 2485 /* 2486 * Allocate a temporary buffer to hold the arguments. 2487 */ 2488 arg = kmem_alloc(PAGE_SIZE, KM_SLEEP); 2489 2490 /* 2491 * Read in the ps_strings structure. 2492 */ 2493 aiov.iov_base = &pss; 2494 aiov.iov_len = sizeof(pss); 2495 auio.uio_iov = &aiov; 2496 auio.uio_iovcnt = 1; 2497 auio.uio_offset = psstr_addr; 2498 auio.uio_resid = sizeof(pss); 2499 auio.uio_rw = UIO_READ; 2500 UIO_SETUP_SYSSPACE(&auio); 2501 error = uvm_io(&vmspace->vm_map, &auio); 2502 if (error) 2503 goto done; 2504 2505 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2506 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2507 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2508 *oldlenp = sizeof(nargv); 2509 goto done; 2510 } 2511 /* 2512 * Now read the address of the argument vector. 2513 */ 2514 switch (type) { 2515 case KERN_PROC_ARGV: 2516 /* FALLTHROUGH */ 2517 case KERN_PROC_ENV: 2518 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2519 break; 2520 default: 2521 error = EINVAL; 2522 goto done; 2523 } 2524 2525 #ifdef COMPAT_NETBSD32 2526 if (p->p_flag & PK_32) 2527 len = sizeof(netbsd32_charp) * nargv; 2528 else 2529 #endif 2530 len = sizeof(char *) * nargv; 2531 2532 if ((argvlen = len) != 0) 2533 argv = kmem_alloc(len, KM_SLEEP); 2534 2535 aiov.iov_base = argv; 2536 aiov.iov_len = len; 2537 auio.uio_iov = &aiov; 2538 auio.uio_iovcnt = 1; 2539 auio.uio_offset = (off_t)(unsigned long)tmp; 2540 auio.uio_resid = len; 2541 auio.uio_rw = UIO_READ; 2542 UIO_SETUP_SYSSPACE(&auio); 2543 error = uvm_io(&vmspace->vm_map, &auio); 2544 if (error) 2545 goto done; 2546 2547 /* 2548 * Now copy each string. 2549 */ 2550 len = 0; /* bytes written to user buffer */ 2551 for (i = 0; i < nargv; i++) { 2552 int finished = 0; 2553 vaddr_t base; 2554 size_t xlen; 2555 int j; 2556 2557 #ifdef COMPAT_NETBSD32 2558 if (p->p_flag & PK_32) { 2559 netbsd32_charp *argv32; 2560 2561 argv32 = (netbsd32_charp *)argv; 2562 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2563 } else 2564 #endif 2565 base = (vaddr_t)argv[i]; 2566 2567 /* 2568 * The program has messed around with its arguments, 2569 * possibly deleting some, and replacing them with 2570 * NULL's. Treat this as the last argument and not 2571 * a failure. 2572 */ 2573 if (base == 0) 2574 break; 2575 2576 while (!finished) { 2577 xlen = PAGE_SIZE - (base & PAGE_MASK); 2578 2579 aiov.iov_base = arg; 2580 aiov.iov_len = PAGE_SIZE; 2581 auio.uio_iov = &aiov; 2582 auio.uio_iovcnt = 1; 2583 auio.uio_offset = base; 2584 auio.uio_resid = xlen; 2585 auio.uio_rw = UIO_READ; 2586 UIO_SETUP_SYSSPACE(&auio); 2587 error = uvm_io(&vmspace->vm_map, &auio); 2588 if (error) 2589 goto done; 2590 2591 /* Look for the end of the string */ 2592 for (j = 0; j < xlen; j++) { 2593 if (arg[j] == '\0') { 2594 xlen = j + 1; 2595 finished = 1; 2596 break; 2597 } 2598 } 2599 2600 /* Check for user buffer overflow */ 2601 if (len + xlen > *oldlenp) { 2602 finished = 1; 2603 if (len > *oldlenp) 2604 xlen = 0; 2605 else 2606 xlen = *oldlenp - len; 2607 } 2608 2609 /* Copyout the page */ 2610 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2611 if (error) 2612 goto done; 2613 2614 len += xlen; 2615 base += xlen; 2616 } 2617 } 2618 *oldlenp = len; 2619 2620 done: 2621 if (argvlen != 0) 2622 kmem_free(argv, argvlen); 2623 uvmspace_free(vmspace); 2624 kmem_free(arg, PAGE_SIZE); 2625 sysctl_relock(); 2626 return error; 2627 2628 out_locked: 2629 mutex_exit(&proclist_lock); 2630 sysctl_relock(); 2631 return error; 2632 } 2633 2634 static int 2635 sysctl_security_setidcore(SYSCTLFN_ARGS) 2636 { 2637 int newsize, error; 2638 struct sysctlnode node; 2639 2640 node = *rnode; 2641 node.sysctl_data = &newsize; 2642 newsize = *(int *)rnode->sysctl_data; 2643 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2644 if (error || newp == NULL) 2645 return error; 2646 2647 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2648 0, NULL, NULL, NULL)) 2649 return (EPERM); 2650 2651 *(int *)rnode->sysctl_data = newsize; 2652 2653 return 0; 2654 } 2655 2656 static int 2657 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2658 { 2659 int error; 2660 char *newsetidcorename; 2661 struct sysctlnode node; 2662 2663 newsetidcorename = PNBUF_GET(); 2664 node = *rnode; 2665 node.sysctl_data = newsetidcorename; 2666 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2667 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2668 if (error || newp == NULL) { 2669 goto out; 2670 } 2671 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2672 0, NULL, NULL, NULL)) { 2673 error = EPERM; 2674 goto out; 2675 } 2676 if (strlen(newsetidcorename) == 0) { 2677 error = EINVAL; 2678 goto out; 2679 } 2680 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2681 out: 2682 PNBUF_PUT(newsetidcorename); 2683 return error; 2684 } 2685 2686 /* 2687 * sysctl helper routine for kern.cp_id node. Maps cpus to their 2688 * cpuids. 2689 */ 2690 static int 2691 sysctl_kern_cpid(SYSCTLFN_ARGS) 2692 { 2693 struct sysctlnode node = *rnode; 2694 uint64_t *cp_id = NULL; 2695 int error, n = ncpu; 2696 struct cpu_info *ci; 2697 CPU_INFO_ITERATOR cii; 2698 2699 /* 2700 * Here you may either retrieve a single cpu id or the whole 2701 * set. The size you get back when probing depends on what 2702 * you ask for. 2703 */ 2704 switch (namelen) { 2705 case 0: 2706 node.sysctl_size = n * sizeof(uint64_t); 2707 n = -2; /* ALL */ 2708 break; 2709 case 1: 2710 if (name[0] < 0 || name[0] >= n) 2711 return (ENOENT); /* ENOSUCHPROCESSOR */ 2712 node.sysctl_size = sizeof(uint64_t); 2713 n = name[0]; 2714 /* 2715 * adjust these so that sysctl_lookup() will be happy 2716 */ 2717 name++; 2718 namelen--; 2719 break; 2720 default: 2721 return (EINVAL); 2722 } 2723 2724 cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP); 2725 if (cp_id == NULL) 2726 return (ENOMEM); 2727 node.sysctl_data = cp_id; 2728 memset(cp_id, 0, node.sysctl_size); 2729 2730 for (CPU_INFO_FOREACH(cii, ci)) { 2731 if (n <= 0) 2732 cp_id[0] = ci->ci_cpuid; 2733 /* 2734 * if a specific processor was requested and we just 2735 * did it, we're done here 2736 */ 2737 if (n == 0) 2738 break; 2739 /* 2740 * if doing "all", skip to next cp_id slot for next processor 2741 */ 2742 if (n == -2) 2743 cp_id++; 2744 /* 2745 * if we're doing a specific processor, we're one 2746 * processor closer 2747 */ 2748 if (n > 0) 2749 n--; 2750 } 2751 2752 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2753 kmem_free(node.sysctl_data, node.sysctl_size); 2754 return (error); 2755 } 2756 2757 /* 2758 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 2759 * calculate on the fly taking into account integer overflow and the 2760 * current wired count. 2761 */ 2762 static int 2763 sysctl_hw_usermem(SYSCTLFN_ARGS) 2764 { 2765 u_int ui; 2766 u_quad_t uq; 2767 struct sysctlnode node; 2768 2769 node = *rnode; 2770 switch (rnode->sysctl_num) { 2771 case HW_USERMEM: 2772 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2773 ui = UINT_MAX; 2774 else 2775 ui *= PAGE_SIZE; 2776 node.sysctl_data = &ui; 2777 break; 2778 case HW_USERMEM64: 2779 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2780 node.sysctl_data = &uq; 2781 break; 2782 default: 2783 return (EINVAL); 2784 } 2785 2786 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2787 } 2788 2789 /* 2790 * sysctl helper routine for kern.cnmagic node. Pulls the old value 2791 * out, encoded, and stuffs the new value in for decoding. 2792 */ 2793 static int 2794 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2795 { 2796 char magic[CNS_LEN]; 2797 int error; 2798 struct sysctlnode node; 2799 2800 if (oldp) 2801 cn_get_magic(magic, CNS_LEN); 2802 node = *rnode; 2803 node.sysctl_data = &magic[0]; 2804 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2805 if (error || newp == NULL) 2806 return (error); 2807 2808 return (cn_set_magic(magic)); 2809 } 2810 2811 /* 2812 * ******************************************************************** 2813 * section 3: public helper routines that are used for more than one 2814 * node 2815 * ******************************************************************** 2816 */ 2817 2818 /* 2819 * sysctl helper routine for the kern.root_device node and some ports' 2820 * machdep.root_device nodes. 2821 */ 2822 int 2823 sysctl_root_device(SYSCTLFN_ARGS) 2824 { 2825 struct sysctlnode node; 2826 2827 node = *rnode; 2828 node.sysctl_data = root_device->dv_xname; 2829 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2830 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2831 } 2832 2833 /* 2834 * sysctl helper routine for kern.consdev, dependent on the current 2835 * state of the console. Also used for machdep.console_device on some 2836 * ports. 2837 */ 2838 int 2839 sysctl_consdev(SYSCTLFN_ARGS) 2840 { 2841 dev_t consdev; 2842 struct sysctlnode node; 2843 2844 if (cn_tab != NULL) 2845 consdev = cn_tab->cn_dev; 2846 else 2847 consdev = NODEV; 2848 node = *rnode; 2849 node.sysctl_data = &consdev; 2850 node.sysctl_size = sizeof(consdev); 2851 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2852 } 2853 2854 /* 2855 * ******************************************************************** 2856 * section 4: support for some helpers 2857 * ******************************************************************** 2858 */ 2859 2860 /* 2861 * Fill in a kinfo_proc2 structure for the specified process. 2862 */ 2863 static void 2864 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2865 { 2866 struct tty *tp; 2867 struct lwp *l, *l2; 2868 struct timeval ut, st, rt; 2869 sigset_t ss1, ss2; 2870 struct rusage ru; 2871 2872 KASSERT(mutex_owned(&proclist_lock)); 2873 KASSERT(mutex_owned(&p->p_mutex)); 2874 2875 memset(ki, 0, sizeof(*ki)); 2876 2877 ki->p_paddr = PTRTOUINT64(p); 2878 ki->p_fd = PTRTOUINT64(p->p_fd); 2879 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2880 ki->p_stats = PTRTOUINT64(p->p_stats); 2881 ki->p_limit = PTRTOUINT64(p->p_limit); 2882 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2883 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2884 ki->p_sess = PTRTOUINT64(p->p_session); 2885 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2886 ki->p_ru = PTRTOUINT64(&p->p_stats->p_ru); 2887 2888 ki->p_eflag = 0; 2889 ki->p_exitsig = p->p_exitsig; 2890 2891 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2892 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2893 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2894 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2895 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2896 2897 ki->p_pid = p->p_pid; 2898 if (p->p_pptr) 2899 ki->p_ppid = p->p_pptr->p_pid; 2900 else 2901 ki->p_ppid = 0; 2902 ki->p_sid = p->p_session->s_sid; 2903 ki->p__pgid = p->p_pgrp->pg_id; 2904 2905 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2906 2907 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2908 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2909 ki->p_gid = kauth_cred_getegid(p->p_cred); 2910 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2911 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2912 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2913 2914 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2915 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2916 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0])), 2917 UIO_SYSSPACE); 2918 2919 ki->p_jobc = p->p_pgrp->pg_jobc; 2920 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2921 ki->p_tdev = tp->t_dev; 2922 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2923 ki->p_tsess = PTRTOUINT64(tp->t_session); 2924 } else { 2925 ki->p_tdev = (uint32_t)NODEV; 2926 } 2927 2928 mutex_enter(&p->p_smutex); 2929 2930 ki->p_uticks = p->p_uticks; 2931 ki->p_sticks = p->p_sticks; 2932 ki->p_iticks = p->p_iticks; 2933 2934 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2935 ki->p_traceflag = p->p_traceflag; 2936 2937 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2938 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2939 2940 ki->p_cpticks = 0; 2941 ki->p_pctcpu = p->p_pctcpu; 2942 ki->p_estcpu = 0; 2943 ss1 = p->p_sigpend.sp_set; 2944 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2945 /* This is hardly correct, but... */ 2946 sigplusset(&l->l_sigpend.sp_set, &ss1); 2947 sigplusset(&l->l_sigmask, &ss2); 2948 ki->p_cpticks += l->l_cpticks; 2949 ki->p_pctcpu += l->l_pctcpu; 2950 ki->p_estcpu += l->l_estcpu; 2951 } 2952 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2953 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2954 2955 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2956 ki->p_realstat = p->p_stat; 2957 ki->p_nice = p->p_nice; 2958 2959 ki->p_xstat = p->p_xstat; 2960 ki->p_acflag = p->p_acflag; 2961 2962 strncpy(ki->p_comm, p->p_comm, 2963 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2964 2965 strncpy(ki->p_login, p->p_session->s_login, 2966 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2967 2968 ki->p_nlwps = p->p_nlwps; 2969 ki->p_realflag = ki->p_flag; 2970 2971 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2972 ki->p_vm_rssize = 0; 2973 ki->p_vm_tsize = 0; 2974 ki->p_vm_dsize = 0; 2975 ki->p_vm_ssize = 0; 2976 ki->p_nrlwps = 0; 2977 l = NULL; 2978 } else { 2979 struct vmspace *vm = p->p_vmspace; 2980 int tmp; 2981 2982 ki->p_vm_rssize = vm_resident_count(vm); 2983 ki->p_vm_tsize = vm->vm_tsize; 2984 ki->p_vm_dsize = vm->vm_dsize; 2985 ki->p_vm_ssize = vm->vm_ssize; 2986 2987 /* Pick a "representative" LWP */ 2988 l = proc_representative_lwp(p, &tmp, 1); 2989 lwp_lock(l); 2990 ki->p_nrlwps = tmp; 2991 ki->p_forw = 0; 2992 ki->p_back = 0; 2993 ki->p_addr = PTRTOUINT64(l->l_addr); 2994 ki->p_stat = l->l_stat; 2995 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2996 ki->p_swtime = l->l_swtime; 2997 ki->p_slptime = l->l_slptime; 2998 if (l->l_stat == LSONPROC) 2999 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3000 else 3001 ki->p_schedflags = 0; 3002 ki->p_holdcnt = l->l_holdcnt; 3003 ki->p_priority = lwp_eprio(l); 3004 ki->p_usrpri = l->l_priority; 3005 if (l->l_wmesg) 3006 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 3007 ki->p_wchan = PTRTOUINT64(l->l_wchan); 3008 lwp_unlock(l); 3009 } 3010 if (p->p_session->s_ttyvp) 3011 ki->p_eflag |= EPROC_CTTY; 3012 if (SESS_LEADER(p)) 3013 ki->p_eflag |= EPROC_SLEADER; 3014 3015 /* XXX Is this double check necessary? */ 3016 if (P_ZOMBIE(p)) { 3017 ki->p_uvalid = 0; 3018 ki->p_rtime_sec = 0; 3019 ki->p_rtime_usec = 0; 3020 } else { 3021 ki->p_uvalid = 1; 3022 3023 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 3024 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 3025 3026 calcru(p, &ut, &st, NULL, &rt); 3027 ki->p_rtime_sec = rt.tv_sec; 3028 ki->p_rtime_usec = rt.tv_usec; 3029 ki->p_uutime_sec = ut.tv_sec; 3030 ki->p_uutime_usec = ut.tv_usec; 3031 ki->p_ustime_sec = st.tv_sec; 3032 ki->p_ustime_usec = st.tv_usec; 3033 3034 memcpy(&ru, &p->p_stats->p_ru, sizeof(ru)); 3035 ki->p_uru_nvcsw = 0; 3036 ki->p_uru_nivcsw = 0; 3037 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 3038 ki->p_uru_nvcsw += (l->l_ncsw - l->l_nivcsw); 3039 ki->p_uru_nivcsw += l->l_nivcsw; 3040 ruadd(&ru, &l2->l_ru); 3041 } 3042 ki->p_uru_maxrss = ru.ru_maxrss; 3043 ki->p_uru_ixrss = ru.ru_ixrss; 3044 ki->p_uru_idrss = ru.ru_idrss; 3045 ki->p_uru_isrss = ru.ru_isrss; 3046 ki->p_uru_minflt = ru.ru_minflt; 3047 ki->p_uru_majflt = ru.ru_majflt; 3048 ki->p_uru_nswap = ru.ru_nswap; 3049 ki->p_uru_inblock = ru.ru_inblock; 3050 ki->p_uru_oublock = ru.ru_oublock; 3051 ki->p_uru_msgsnd = ru.ru_msgsnd; 3052 ki->p_uru_msgrcv = ru.ru_msgrcv; 3053 ki->p_uru_nsignals = ru.ru_nsignals; 3054 3055 timeradd(&p->p_stats->p_cru.ru_utime, 3056 &p->p_stats->p_cru.ru_stime, &ut); 3057 ki->p_uctime_sec = ut.tv_sec; 3058 ki->p_uctime_usec = ut.tv_usec; 3059 } 3060 if (l != NULL) 3061 ki->p_cpuid = l->l_cpu->ci_cpuid; 3062 3063 mutex_exit(&p->p_smutex); 3064 } 3065 3066 /* 3067 * Fill in a kinfo_lwp structure for the specified lwp. 3068 */ 3069 static void 3070 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3071 { 3072 struct proc *p = l->l_proc; 3073 struct timeval tv; 3074 3075 kl->l_forw = 0; 3076 kl->l_back = 0; 3077 kl->l_laddr = PTRTOUINT64(l); 3078 kl->l_addr = PTRTOUINT64(l->l_addr); 3079 kl->l_stat = l->l_stat; 3080 kl->l_lid = l->l_lid; 3081 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 3082 3083 kl->l_swtime = l->l_swtime; 3084 kl->l_slptime = l->l_slptime; 3085 if (l->l_stat == LSONPROC) 3086 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3087 else 3088 kl->l_schedflags = 0; 3089 kl->l_holdcnt = l->l_holdcnt; 3090 kl->l_priority = lwp_eprio(l); 3091 kl->l_usrpri = l->l_priority; 3092 if (l->l_wmesg) 3093 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3094 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3095 kl->l_cpuid = l->l_cpu->ci_cpuid; 3096 bintime2timeval(&l->l_rtime, &tv); 3097 kl->l_rtime_sec = tv.tv_sec; 3098 kl->l_rtime_usec = tv.tv_usec; 3099 kl->l_cpticks = l->l_cpticks; 3100 kl->l_pctcpu = l->l_pctcpu; 3101 kl->l_pid = p->p_pid; 3102 if (l->l_name == NULL) 3103 kl->l_name[0] = '\0'; 3104 else 3105 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 3106 } 3107 3108 /* 3109 * Fill in an eproc structure for the specified process. 3110 */ 3111 void 3112 fill_eproc(struct proc *p, struct eproc *ep) 3113 { 3114 struct tty *tp; 3115 struct lwp *l; 3116 3117 KASSERT(mutex_owned(&proclist_lock)); 3118 KASSERT(mutex_owned(&p->p_mutex)); 3119 3120 ep->e_paddr = p; 3121 ep->e_sess = p->p_session; 3122 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 3123 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 3124 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 3125 ep->e_vm.vm_rssize = 0; 3126 ep->e_vm.vm_tsize = 0; 3127 ep->e_vm.vm_dsize = 0; 3128 ep->e_vm.vm_ssize = 0; 3129 /* ep->e_vm.vm_pmap = XXX; */ 3130 } else { 3131 struct vmspace *vm = p->p_vmspace; 3132 3133 ep->e_vm.vm_rssize = vm_resident_count(vm); 3134 ep->e_vm.vm_tsize = vm->vm_tsize; 3135 ep->e_vm.vm_dsize = vm->vm_dsize; 3136 ep->e_vm.vm_ssize = vm->vm_ssize; 3137 3138 /* Pick a "representative" LWP */ 3139 mutex_enter(&p->p_smutex); 3140 l = proc_representative_lwp(p, NULL, 1); 3141 lwp_lock(l); 3142 if (l->l_wmesg) 3143 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3144 lwp_unlock(l); 3145 mutex_exit(&p->p_smutex); 3146 } 3147 if (p->p_pptr) 3148 ep->e_ppid = p->p_pptr->p_pid; 3149 else 3150 ep->e_ppid = 0; 3151 ep->e_pgid = p->p_pgrp->pg_id; 3152 ep->e_sid = ep->e_sess->s_sid; 3153 ep->e_jobc = p->p_pgrp->pg_jobc; 3154 if ((p->p_lflag & PL_CONTROLT) && 3155 (tp = ep->e_sess->s_ttyp)) { 3156 ep->e_tdev = tp->t_dev; 3157 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3158 ep->e_tsess = tp->t_session; 3159 } else 3160 ep->e_tdev = NODEV; 3161 3162 ep->e_xsize = ep->e_xrssize = 0; 3163 ep->e_xccount = ep->e_xswrss = 0; 3164 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3165 if (SESS_LEADER(p)) 3166 ep->e_flag |= EPROC_SLEADER; 3167 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3168 } 3169 3170 u_int 3171 sysctl_map_flags(const u_int *map, u_int word) 3172 { 3173 u_int rv; 3174 3175 for (rv = 0; *map != 0; map += 2) 3176 if ((word & map[0]) != 0) 3177 rv |= map[1]; 3178 3179 return rv; 3180 } 3181
Indexes created Wed Oct 01 15:09:59 GMT 2025