init_sysctl.c revision 1.122
1 /* $NetBSD: init_sysctl.c,v 1.122 2008/01/30 00:43:47 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 1.122 2008/01/30 00:43:47 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 np = LIST_NEXT(fp, f_list); 1314 mutex_enter(&fp->f_lock); 1315 if (fp->f_count == 0) { 1316 mutex_exit(&fp->f_lock); 1317 continue; 1318 } 1319 /* 1320 * XXX Need to prevent that from being an alternative way 1321 * XXX to getting process information. 1322 */ 1323 if (kauth_authorize_generic(l->l_cred, 1324 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1325 mutex_exit(&fp->f_lock); 1326 continue; 1327 } 1328 if (buflen < sizeof(struct file)) { 1329 *oldlenp = where - start; 1330 mutex_exit(&fp->f_lock); 1331 error = ENOMEM; 1332 break; 1333 } 1334 memcpy(&fbuf, fp, sizeof(fbuf)); 1335 LIST_INSERT_AFTER(fp, dp, f_list); 1336 mutex_exit(&fp->f_lock); 1337 mutex_exit(&filelist_lock); 1338 error = dcopyout(l, &fbuf, where, sizeof(fbuf)); 1339 if (error) { 1340 mutex_enter(&filelist_lock); 1341 LIST_REMOVE(dp, f_list); 1342 break; 1343 } 1344 buflen -= sizeof(struct file); 1345 where += sizeof(struct file); 1346 mutex_enter(&filelist_lock); 1347 np = LIST_NEXT(dp, f_list); 1348 LIST_REMOVE(dp, f_list); 1349 } 1350 mutex_exit(&filelist_lock); 1351 *oldlenp = where - start; 1352 if (dp != NULL) 1353 fputdummy(dp); 1354 sysctl_relock(); 1355 return (error); 1356 } 1357 1358 /* 1359 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 1360 * former it merely checks the message buffer is set up. For the latter, 1361 * it also copies out the data if necessary. 1362 */ 1363 static int 1364 sysctl_msgbuf(SYSCTLFN_ARGS) 1365 { 1366 char *where = oldp; 1367 size_t len, maxlen; 1368 long beg, end; 1369 extern kmutex_t log_lock; 1370 int error; 1371 1372 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1373 msgbufenabled = 0; 1374 return (ENXIO); 1375 } 1376 1377 switch (rnode->sysctl_num) { 1378 case KERN_MSGBUFSIZE: { 1379 struct sysctlnode node = *rnode; 1380 int msg_bufs = (int)msgbufp->msg_bufs; 1381 node.sysctl_data = &msg_bufs; 1382 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1383 } 1384 case KERN_MSGBUF: 1385 break; 1386 default: 1387 return (EOPNOTSUPP); 1388 } 1389 1390 if (newp != NULL) 1391 return (EPERM); 1392 1393 if (oldp == NULL) { 1394 /* always return full buffer size */ 1395 *oldlenp = msgbufp->msg_bufs; 1396 return (0); 1397 } 1398 1399 sysctl_unlock(); 1400 1401 /* 1402 * First, copy from the write pointer to the end of 1403 * message buffer. 1404 */ 1405 error = 0; 1406 mutex_spin_enter(&log_lock); 1407 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1408 beg = msgbufp->msg_bufx; 1409 end = msgbufp->msg_bufs; 1410 mutex_spin_exit(&log_lock); 1411 1412 while (maxlen > 0) { 1413 len = MIN(end - beg, maxlen); 1414 if (len == 0) 1415 break; 1416 /* XXX unlocked, but hardly matters. */ 1417 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1418 if (error) 1419 break; 1420 where += len; 1421 maxlen -= len; 1422 1423 /* 1424 * ... then, copy from the beginning of message buffer to 1425 * the write pointer. 1426 */ 1427 beg = 0; 1428 end = msgbufp->msg_bufx; 1429 } 1430 1431 sysctl_relock(); 1432 return (error); 1433 } 1434 1435 /* 1436 * sysctl helper routine for kern.defcorename. In the case of a new 1437 * string being assigned, check that it's not a zero-length string. 1438 * (XXX the check in -current doesn't work, but do we really care?) 1439 */ 1440 static int 1441 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1442 { 1443 int error; 1444 char *newcorename; 1445 struct sysctlnode node; 1446 1447 newcorename = PNBUF_GET(); 1448 node = *rnode; 1449 node.sysctl_data = &newcorename[0]; 1450 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1451 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1452 if (error || newp == NULL) { 1453 goto done; 1454 } 1455 1456 /* 1457 * when sysctl_lookup() deals with a string, it's guaranteed 1458 * to come back nul terminated. So there. :) 1459 */ 1460 if (strlen(newcorename) == 0) { 1461 error = EINVAL; 1462 } else { 1463 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1464 error = 0; 1465 } 1466 done: 1467 PNBUF_PUT(newcorename); 1468 return error; 1469 } 1470 1471 /* 1472 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1473 * across all cpus. 1474 */ 1475 static int 1476 sysctl_kern_cptime(SYSCTLFN_ARGS) 1477 { 1478 struct sysctlnode node = *rnode; 1479 uint64_t *cp_time = NULL; 1480 int error, n = ncpu, i; 1481 struct cpu_info *ci; 1482 CPU_INFO_ITERATOR cii; 1483 1484 /* 1485 * if you specifically pass a buffer that is the size of the 1486 * sum, or if you are probing for the size, you get the "sum" 1487 * of cp_time (and the size thereof) across all processors. 1488 * 1489 * alternately, you can pass an additional mib number and get 1490 * cp_time for that particular processor. 1491 */ 1492 switch (namelen) { 1493 case 0: 1494 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1495 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1496 n = -1; /* SUM */ 1497 } 1498 else { 1499 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1500 n = -2; /* ALL */ 1501 } 1502 break; 1503 case 1: 1504 if (name[0] < 0 || name[0] >= n) 1505 return (ENOENT); /* ENOSUCHPROCESSOR */ 1506 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1507 n = name[0]; 1508 /* 1509 * adjust these so that sysctl_lookup() will be happy 1510 */ 1511 name++; 1512 namelen--; 1513 break; 1514 default: 1515 return (EINVAL); 1516 } 1517 1518 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); 1519 if (cp_time == NULL) 1520 return (ENOMEM); 1521 node.sysctl_data = cp_time; 1522 memset(cp_time, 0, node.sysctl_size); 1523 1524 for (CPU_INFO_FOREACH(cii, ci)) { 1525 if (n <= 0) { 1526 for (i = 0; i < CPUSTATES; i++) { 1527 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1528 } 1529 } 1530 /* 1531 * if a specific processor was requested and we just 1532 * did it, we're done here 1533 */ 1534 if (n == 0) 1535 break; 1536 /* 1537 * if doing "all", skip to next cp_time set for next processor 1538 */ 1539 if (n == -2) 1540 cp_time += CPUSTATES; 1541 /* 1542 * if we're doing a specific processor, we're one 1543 * processor closer 1544 */ 1545 if (n > 0) 1546 n--; 1547 } 1548 1549 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1550 kmem_free(node.sysctl_data, node.sysctl_size); 1551 return (error); 1552 } 1553 1554 #if NPTY > 0 1555 /* 1556 * sysctl helper routine for kern.maxptys. Ensures that any new value 1557 * is acceptable to the pty subsystem. 1558 */ 1559 static int 1560 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1561 { 1562 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1563 int error, xmax; 1564 struct sysctlnode node; 1565 1566 /* get current value of maxptys */ 1567 xmax = pty_maxptys(0, 0); 1568 1569 node = *rnode; 1570 node.sysctl_data = &xmax; 1571 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1572 if (error || newp == NULL) 1573 return (error); 1574 1575 if (xmax != pty_maxptys(xmax, 1)) 1576 return (EINVAL); 1577 1578 return (0); 1579 } 1580 #endif /* NPTY > 0 */ 1581 1582 /* 1583 * sysctl helper routine for kern.sbmax. Basically just ensures that 1584 * any new value is not too small. 1585 */ 1586 static int 1587 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1588 { 1589 int error, new_sbmax; 1590 struct sysctlnode node; 1591 1592 new_sbmax = sb_max; 1593 node = *rnode; 1594 node.sysctl_data = &new_sbmax; 1595 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1596 if (error || newp == NULL) 1597 return (error); 1598 1599 KERNEL_LOCK(1, NULL); 1600 error = sb_max_set(new_sbmax); 1601 KERNEL_UNLOCK_ONE(NULL); 1602 1603 return (error); 1604 } 1605 1606 /* 1607 * sysctl helper routine for kern.urandom node. Picks a random number 1608 * for you. 1609 */ 1610 static int 1611 sysctl_kern_urnd(SYSCTLFN_ARGS) 1612 { 1613 #if NRND > 0 1614 int v, rv; 1615 1616 KERNEL_LOCK(1, NULL); 1617 rv = rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY); 1618 KERNEL_UNLOCK_ONE(NULL); 1619 if (rv == sizeof(v)) { 1620 struct sysctlnode node = *rnode; 1621 node.sysctl_data = &v; 1622 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1623 } 1624 else 1625 return (EIO); /*XXX*/ 1626 #else 1627 return (EOPNOTSUPP); 1628 #endif 1629 } 1630 1631 /* 1632 * sysctl helper routine for kern.arandom node. Picks a random number 1633 * for you. 1634 */ 1635 static int 1636 sysctl_kern_arnd(SYSCTLFN_ARGS) 1637 { 1638 #if NRND > 0 1639 int error; 1640 void *v; 1641 struct sysctlnode node = *rnode; 1642 1643 if (*oldlenp == 0) 1644 return 0; 1645 if (*oldlenp > 8192) 1646 return E2BIG; 1647 1648 v = kmem_alloc(*oldlenp, KM_SLEEP); 1649 arc4randbytes(v, *oldlenp); 1650 node.sysctl_data = v; 1651 node.sysctl_size = *oldlenp; 1652 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1653 kmem_free(v, *oldlenp); 1654 return error; 1655 #else 1656 return (EOPNOTSUPP); 1657 #endif 1658 } 1659 /* 1660 * sysctl helper routine to do kern.lwp.* work. 1661 */ 1662 static int 1663 sysctl_kern_lwp(SYSCTLFN_ARGS) 1664 { 1665 struct kinfo_lwp klwp; 1666 struct proc *p; 1667 struct lwp *l2, *l3; 1668 char *where, *dp; 1669 int pid, elem_size, elem_count; 1670 int buflen, needed, error; 1671 bool gotit; 1672 1673 if (namelen == 1 && name[0] == CTL_QUERY) 1674 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1675 1676 dp = where = oldp; 1677 buflen = where != NULL ? *oldlenp : 0; 1678 error = needed = 0; 1679 1680 if (newp != NULL || namelen != 3) 1681 return (EINVAL); 1682 pid = name[0]; 1683 elem_size = name[1]; 1684 elem_count = name[2]; 1685 1686 sysctl_unlock(); 1687 if (pid == -1) { 1688 mutex_enter(&proclist_lock); 1689 LIST_FOREACH(p, &allproc, p_list) { 1690 /* Grab a hold on the process. */ 1691 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 1692 continue; 1693 } 1694 mutex_exit(&proclist_lock); 1695 1696 mutex_enter(&p->p_smutex); 1697 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1698 if (buflen >= elem_size && elem_count > 0) { 1699 lwp_lock(l2); 1700 fill_lwp(l2, &klwp); 1701 lwp_unlock(l2); 1702 mutex_exit(&p->p_smutex); 1703 1704 /* 1705 * Copy out elem_size, but not 1706 * larger than the size of a 1707 * struct kinfo_proc2. 1708 */ 1709 error = dcopyout(l, &klwp, dp, 1710 min(sizeof(klwp), elem_size)); 1711 if (error) { 1712 rw_exit(&p->p_reflock); 1713 goto cleanup; 1714 } 1715 mutex_enter(&p->p_smutex); 1716 LIST_FOREACH(l3, &p->p_lwps, 1717 l_sibling) { 1718 if (l2 == l3) 1719 break; 1720 } 1721 if (l3 == NULL) { 1722 mutex_exit(&p->p_smutex); 1723 rw_exit(&p->p_reflock); 1724 error = EAGAIN; 1725 goto cleanup; 1726 } 1727 dp += elem_size; 1728 buflen -= elem_size; 1729 elem_count--; 1730 } 1731 needed += elem_size; 1732 } 1733 mutex_exit(&p->p_smutex); 1734 1735 /* Drop reference to process. */ 1736 mutex_enter(&proclist_lock); 1737 rw_exit(&p->p_reflock); 1738 } 1739 mutex_exit(&proclist_lock); 1740 } else { 1741 mutex_enter(&proclist_lock); 1742 p = p_find(pid, PFIND_LOCKED); 1743 if (p == NULL) { 1744 error = ESRCH; 1745 mutex_exit(&proclist_lock); 1746 goto cleanup; 1747 } 1748 /* Grab a hold on the process. */ 1749 gotit = rw_tryenter(&p->p_reflock, RW_READER); 1750 mutex_exit(&proclist_lock); 1751 if (!gotit) { 1752 error = ESRCH; 1753 goto cleanup; 1754 } 1755 1756 mutex_enter(&p->p_smutex); 1757 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1758 if (buflen >= elem_size && elem_count > 0) { 1759 lwp_lock(l2); 1760 fill_lwp(l2, &klwp); 1761 lwp_unlock(l2); 1762 mutex_exit(&p->p_smutex); 1763 /* 1764 * Copy out elem_size, but not larger than 1765 * the size of a struct kinfo_proc2. 1766 */ 1767 error = dcopyout(l, &klwp, dp, 1768 min(sizeof(klwp), elem_size)); 1769 if (error) { 1770 rw_exit(&p->p_reflock); 1771 goto cleanup; 1772 } 1773 mutex_enter(&p->p_smutex); 1774 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1775 if (l2 == l3) 1776 break; 1777 } 1778 if (l3 == NULL) { 1779 mutex_exit(&p->p_smutex); 1780 rw_exit(&p->p_reflock); 1781 error = EAGAIN; 1782 goto cleanup; 1783 } 1784 dp += elem_size; 1785 buflen -= elem_size; 1786 elem_count--; 1787 } 1788 needed += elem_size; 1789 } 1790 mutex_exit(&p->p_smutex); 1791 1792 /* Drop reference to process. */ 1793 rw_exit(&p->p_reflock); 1794 } 1795 1796 if (where != NULL) { 1797 *oldlenp = dp - where; 1798 if (needed > *oldlenp) { 1799 sysctl_relock(); 1800 return (ENOMEM); 1801 } 1802 } else { 1803 needed += KERN_LWPSLOP; 1804 *oldlenp = needed; 1805 } 1806 error = 0; 1807 cleanup: 1808 sysctl_relock(); 1809 return (error); 1810 } 1811 1812 /* 1813 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1814 * given value is not too large or two small, and is at least one 1815 * timer tick if not zero. 1816 */ 1817 static int 1818 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1819 { 1820 /* userland sees value in ms, internally is in ticks */ 1821 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1822 int error, timo, lsleep; 1823 struct sysctlnode node; 1824 1825 lsleep = forkfsleep * 1000 / hz; 1826 node = *rnode; 1827 node.sysctl_data = &lsleep; 1828 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1829 if (error || newp == NULL) 1830 return (error); 1831 1832 /* refuse negative values, and overly 'long time' */ 1833 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1834 return (EINVAL); 1835 1836 timo = mstohz(lsleep); 1837 1838 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1839 if (lsleep != 0 && timo == 0) 1840 forkfsleep = 1; 1841 else 1842 forkfsleep = timo; 1843 1844 return (0); 1845 } 1846 1847 /* 1848 * sysctl helper routine for kern.root_partition 1849 */ 1850 static int 1851 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1852 { 1853 int rootpart = DISKPART(rootdev); 1854 struct sysctlnode node = *rnode; 1855 1856 node.sysctl_data = &rootpart; 1857 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1858 } 1859 1860 /* 1861 * sysctl helper function for kern.drivers 1862 */ 1863 static int 1864 sysctl_kern_drivers(SYSCTLFN_ARGS) 1865 { 1866 int error; 1867 size_t buflen; 1868 struct kinfo_drivers kd; 1869 char *start, *where; 1870 const char *dname; 1871 int i; 1872 extern struct devsw_conv *devsw_conv; 1873 extern int max_devsw_convs; 1874 extern kmutex_t devsw_lock; 1875 1876 if (newp != NULL || namelen != 0) 1877 return (EINVAL); 1878 1879 start = where = oldp; 1880 buflen = *oldlenp; 1881 if (where == NULL) { 1882 *oldlenp = max_devsw_convs * sizeof kd; 1883 return 0; 1884 } 1885 1886 /* 1887 * An array of kinfo_drivers structures 1888 */ 1889 error = 0; 1890 sysctl_unlock(); 1891 mutex_enter(&devsw_lock); 1892 for (i = 0; i < max_devsw_convs; i++) { 1893 dname = devsw_conv[i].d_name; 1894 if (dname == NULL) 1895 continue; 1896 if (buflen < sizeof kd) { 1897 error = ENOMEM; 1898 break; 1899 } 1900 memset(&kd, 0, sizeof(kd)); 1901 kd.d_bmajor = devsw_conv[i].d_bmajor; 1902 kd.d_cmajor = devsw_conv[i].d_cmajor; 1903 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1904 mutex_exit(&devsw_lock); 1905 error = dcopyout(l, &kd, where, sizeof kd); 1906 mutex_enter(&devsw_lock); 1907 if (error != 0) 1908 break; 1909 buflen -= sizeof kd; 1910 where += sizeof kd; 1911 } 1912 mutex_exit(&devsw_lock); 1913 sysctl_relock(); 1914 *oldlenp = where - start; 1915 return error; 1916 } 1917 1918 /* 1919 * sysctl helper function for kern.file2 1920 */ 1921 static int 1922 sysctl_kern_file2(SYSCTLFN_ARGS) 1923 { 1924 struct proc *p; 1925 struct file *fp, *tp, *np; 1926 struct filedesc *fd; 1927 struct kinfo_file kf; 1928 char *dp; 1929 u_int i, op; 1930 size_t len, needed, elem_size, out_size; 1931 int error, arg, elem_count; 1932 1933 if (namelen == 1 && name[0] == CTL_QUERY) 1934 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1935 1936 if (namelen != 4) 1937 return (EINVAL); 1938 1939 error = 0; 1940 dp = oldp; 1941 len = (oldp != NULL) ? *oldlenp : 0; 1942 op = name[0]; 1943 arg = name[1]; 1944 elem_size = name[2]; 1945 elem_count = name[3]; 1946 out_size = MIN(sizeof(kf), elem_size); 1947 needed = 0; 1948 1949 if (elem_size < 1 || elem_count < 0) 1950 return (EINVAL); 1951 1952 switch (op) { 1953 case KERN_FILE_BYFILE: 1954 /* 1955 * doesn't use arg so it must be zero 1956 */ 1957 if (arg != 0) 1958 return (EINVAL); 1959 sysctl_unlock(); 1960 /* 1961 * allocate dummy file descriptor to make position in list 1962 */ 1963 if ((tp = fgetdummy()) == NULL) { 1964 sysctl_relock(); 1965 return ENOMEM; 1966 } 1967 mutex_enter(&filelist_lock); 1968 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1969 np = LIST_NEXT(fp, f_list); 1970 mutex_enter(&fp->f_lock); 1971 if (fp->f_count == 0) { 1972 mutex_exit(&fp->f_lock); 1973 continue; 1974 } 1975 /* 1976 * XXX Need to prevent that from being an alternative 1977 * XXX way for getting process information. 1978 */ 1979 if (kauth_authorize_generic(l->l_cred, 1980 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1981 mutex_exit(&fp->f_lock); 1982 continue; 1983 } 1984 if (len >= elem_size && elem_count > 0) { 1985 fill_file(&kf, fp, NULL, 0); 1986 LIST_INSERT_AFTER(fp, tp, f_list); 1987 mutex_exit(&fp->f_lock); 1988 mutex_exit(&filelist_lock); 1989 error = dcopyout(l, &kf, dp, out_size); 1990 mutex_enter(&filelist_lock); 1991 np = LIST_NEXT(tp, f_list); 1992 LIST_REMOVE(tp, f_list); 1993 if (error) { 1994 break; 1995 } 1996 dp += elem_size; 1997 len -= elem_size; 1998 } else { 1999 mutex_exit(&fp->f_lock); 2000 } 2001 if (elem_count > 0) { 2002 needed += elem_size; 2003 if (elem_count != INT_MAX) 2004 elem_count--; 2005 } 2006 } 2007 mutex_exit(&filelist_lock); 2008 fputdummy(tp); 2009 sysctl_relock(); 2010 break; 2011 case KERN_FILE_BYPID: 2012 if (arg < -1) 2013 /* -1 means all processes */ 2014 return (EINVAL); 2015 sysctl_unlock(); 2016 mutex_enter(&proclist_lock); 2017 LIST_FOREACH(p, &allproc, p_list) { 2018 if (p->p_stat == SIDL) { 2019 /* skip embryonic processes */ 2020 continue; 2021 } 2022 if (arg > 0 && p->p_pid != arg) { 2023 /* pick only the one we want */ 2024 /* XXX want 0 to mean "kernel files" */ 2025 continue; 2026 } 2027 mutex_enter(&p->p_mutex); 2028 error = kauth_authorize_process(l->l_cred, 2029 KAUTH_PROCESS_CANSEE, p, 2030 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_OPENFILES), 2031 NULL, NULL); 2032 mutex_exit(&p->p_mutex); 2033 if (error != 0) { 2034 continue; 2035 } 2036 2037 /* 2038 * Grab a hold on the process. 2039 */ 2040 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 2041 continue; 2042 } 2043 mutex_exit(&proclist_lock); 2044 2045 /* XXX Do we need to check permission per file? */ 2046 fd = p->p_fd; 2047 rw_enter(&fd->fd_lock, RW_READER); 2048 for (i = 0; i < fd->fd_nfiles; i++) { 2049 fp = fd->fd_ofiles[i]; 2050 if (fp == NULL) { 2051 continue; 2052 } 2053 mutex_enter(&fp->f_lock); 2054 if (!FILE_IS_USABLE(fp)) { 2055 mutex_exit(&fp->f_lock); 2056 continue; 2057 } 2058 if (len >= elem_size && elem_count > 0) { 2059 fill_file(&kf, fd->fd_ofiles[i], p, i); 2060 mutex_exit(&fp->f_lock); 2061 rw_exit(&fd->fd_lock); 2062 error = dcopyout(l, &kf, dp, out_size); 2063 rw_enter(&fd->fd_lock, RW_READER); 2064 if (error) 2065 break; 2066 dp += elem_size; 2067 len -= elem_size; 2068 } else { 2069 mutex_exit(&fp->f_lock); 2070 } 2071 if (elem_count > 0) { 2072 needed += elem_size; 2073 if (elem_count != INT_MAX) 2074 elem_count--; 2075 } 2076 } 2077 rw_exit(&fd->fd_lock); 2078 2079 /* 2080 * Release reference to process. 2081 */ 2082 mutex_enter(&proclist_lock); 2083 rw_exit(&p->p_reflock); 2084 } 2085 mutex_exit(&proclist_lock); 2086 sysctl_relock(); 2087 break; 2088 default: 2089 return (EINVAL); 2090 } 2091 2092 if (oldp == NULL) 2093 needed += KERN_FILESLOP * elem_size; 2094 *oldlenp = needed; 2095 2096 return (error); 2097 } 2098 2099 static void 2100 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2101 { 2102 2103 memset(kp, 0, sizeof(*kp)); 2104 2105 kp->ki_fileaddr = PTRTOUINT64(fp); 2106 kp->ki_flag = fp->f_flag; 2107 kp->ki_iflags = fp->f_iflags; 2108 kp->ki_ftype = fp->f_type; 2109 kp->ki_count = fp->f_count; 2110 kp->ki_msgcount = fp->f_msgcount; 2111 kp->ki_usecount = fp->f_usecount; 2112 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2113 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2114 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2115 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2116 kp->ki_foffset = fp->f_offset; 2117 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2118 2119 /* vnode information to glue this file to something */ 2120 if (fp->f_type == DTYPE_VNODE) { 2121 struct vnode *vp = (struct vnode *)fp->f_data; 2122 2123 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2124 kp->ki_vsize = vp->v_size; 2125 kp->ki_vtype = vp->v_type; 2126 kp->ki_vtag = vp->v_tag; 2127 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2128 } 2129 2130 /* process information when retrieved via KERN_FILE_BYPID */ 2131 if (p) { 2132 KASSERT(rw_lock_held(&p->p_fd->fd_lock)); 2133 2134 kp->ki_pid = p->p_pid; 2135 kp->ki_fd = i; 2136 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2137 } 2138 } 2139 2140 static int 2141 sysctl_doeproc(SYSCTLFN_ARGS) 2142 { 2143 struct eproc *eproc; 2144 struct kinfo_proc2 *kproc2; 2145 struct kinfo_proc *dp; 2146 struct proc *p; 2147 char *where, *dp2; 2148 int type, op, arg; 2149 u_int elem_size, elem_count; 2150 size_t buflen, needed; 2151 bool match; 2152 int error; 2153 2154 if (namelen == 1 && name[0] == CTL_QUERY) 2155 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2156 2157 dp = oldp; 2158 dp2 = where = oldp; 2159 buflen = where != NULL ? *oldlenp : 0; 2160 error = 0; 2161 needed = 0; 2162 type = rnode->sysctl_num; 2163 2164 if (type == KERN_PROC) { 2165 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2166 return (EINVAL); 2167 op = name[0]; 2168 if (op != KERN_PROC_ALL) 2169 arg = name[1]; 2170 else 2171 arg = 0; /* Quell compiler warning */ 2172 elem_size = elem_count = 0; /* Ditto */ 2173 } else { 2174 if (namelen != 4) 2175 return (EINVAL); 2176 op = name[0]; 2177 arg = name[1]; 2178 elem_size = name[2]; 2179 elem_count = name[3]; 2180 } 2181 2182 sysctl_unlock(); 2183 2184 if (type == KERN_PROC) { 2185 eproc = kmem_alloc(sizeof(*eproc), KM_SLEEP); 2186 kproc2 = NULL; 2187 } else { 2188 eproc = NULL; 2189 kproc2 = kmem_alloc(sizeof(*kproc2), KM_SLEEP); 2190 } 2191 2192 mutex_enter(&proclist_lock); 2193 LIST_FOREACH(p, &allproc, p_list) { 2194 /* 2195 * Skip embryonic processes. 2196 */ 2197 if (p->p_stat == SIDL) 2198 continue; 2199 2200 mutex_enter(&p->p_mutex); 2201 error = kauth_authorize_process(l->l_cred, 2202 KAUTH_PROCESS_CANSEE, p, 2203 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENTRY), NULL, NULL); 2204 if (error != 0) { 2205 mutex_exit(&p->p_mutex); 2206 continue; 2207 } 2208 2209 /* 2210 * TODO - make more efficient (see notes below). 2211 * do by session. 2212 */ 2213 switch (op) { 2214 case KERN_PROC_PID: 2215 /* could do this with just a lookup */ 2216 match = (p->p_pid == (pid_t)arg); 2217 break; 2218 2219 case KERN_PROC_PGRP: 2220 /* could do this by traversing pgrp */ 2221 match = (p->p_pgrp->pg_id == (pid_t)arg); 2222 break; 2223 2224 case KERN_PROC_SESSION: 2225 match = (p->p_session->s_sid == (pid_t)arg); 2226 break; 2227 2228 case KERN_PROC_TTY: 2229 match = true; 2230 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2231 if ((p->p_lflag & PL_CONTROLT) == 0 || 2232 p->p_session->s_ttyp == NULL || 2233 p->p_session->s_ttyvp != NULL) { 2234 match = false; 2235 } 2236 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2237 p->p_session->s_ttyp == NULL) { 2238 if ((dev_t)arg != KERN_PROC_TTY_NODEV) { 2239 match = false; 2240 } 2241 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) { 2242 match = false; 2243 } 2244 break; 2245 2246 case KERN_PROC_UID: 2247 match = (kauth_cred_geteuid(p->p_cred) == (uid_t)arg); 2248 break; 2249 2250 case KERN_PROC_RUID: 2251 match = (kauth_cred_getuid(p->p_cred) == (uid_t)arg); 2252 break; 2253 2254 case KERN_PROC_GID: 2255 match = (kauth_cred_getegid(p->p_cred) == (uid_t)arg); 2256 break; 2257 2258 case KERN_PROC_RGID: 2259 match = (kauth_cred_getgid(p->p_cred) == (uid_t)arg); 2260 break; 2261 2262 case KERN_PROC_ALL: 2263 match = true; 2264 /* allow everything */ 2265 break; 2266 2267 default: 2268 error = EINVAL; 2269 mutex_exit(&p->p_mutex); 2270 goto cleanup; 2271 } 2272 if (!match) { 2273 mutex_exit(&p->p_mutex); 2274 continue; 2275 } 2276 2277 /* 2278 * Grab a hold on the process. 2279 */ 2280 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 2281 mutex_exit(&p->p_mutex); 2282 continue; 2283 } 2284 2285 if (type == KERN_PROC) { 2286 if (buflen >= sizeof(struct kinfo_proc)) { 2287 fill_eproc(p, eproc); 2288 mutex_exit(&p->p_mutex); 2289 mutex_exit(&proclist_lock); 2290 error = dcopyout(l, p, &dp->kp_proc, 2291 sizeof(struct proc)); 2292 mutex_enter(&proclist_lock); 2293 if (error) { 2294 rw_exit(&p->p_reflock); 2295 goto cleanup; 2296 } 2297 error = dcopyout(l, eproc, &dp->kp_eproc, 2298 sizeof(*eproc)); 2299 if (error) { 2300 rw_exit(&p->p_reflock); 2301 goto cleanup; 2302 } 2303 dp++; 2304 buflen -= sizeof(struct kinfo_proc); 2305 } else { 2306 mutex_exit(&p->p_mutex); 2307 } 2308 needed += sizeof(struct kinfo_proc); 2309 } else { /* KERN_PROC2 */ 2310 if (buflen >= elem_size && elem_count > 0) { 2311 fill_kproc2(p, kproc2); 2312 mutex_exit(&p->p_mutex); 2313 mutex_exit(&proclist_lock); 2314 /* 2315 * Copy out elem_size, but not larger than 2316 * the size of a struct kinfo_proc2. 2317 */ 2318 error = dcopyout(l, kproc2, dp2, 2319 min(sizeof(*kproc2), elem_size)); 2320 mutex_enter(&proclist_lock); 2321 if (error) { 2322 rw_exit(&p->p_reflock); 2323 goto cleanup; 2324 } 2325 dp2 += elem_size; 2326 buflen -= elem_size; 2327 elem_count--; 2328 } else { 2329 mutex_exit(&p->p_mutex); 2330 } 2331 needed += elem_size; 2332 } 2333 2334 /* 2335 * Release reference to process. 2336 */ 2337 rw_exit(&p->p_reflock); 2338 } 2339 mutex_exit(&proclist_lock); 2340 2341 if (where != NULL) { 2342 if (type == KERN_PROC) 2343 *oldlenp = (char *)dp - where; 2344 else 2345 *oldlenp = dp2 - where; 2346 if (needed > *oldlenp) { 2347 error = ENOMEM; 2348 goto out; 2349 } 2350 } else { 2351 needed += KERN_PROCSLOP; 2352 *oldlenp = needed; 2353 } 2354 if (kproc2) 2355 kmem_free(kproc2, sizeof(*kproc2)); 2356 if (eproc) 2357 kmem_free(eproc, sizeof(*eproc)); 2358 sysctl_relock(); 2359 return 0; 2360 cleanup: 2361 mutex_exit(&proclist_lock); 2362 out: 2363 if (kproc2) 2364 kmem_free(kproc2, sizeof(*kproc2)); 2365 if (eproc) 2366 kmem_free(eproc, sizeof(*eproc)); 2367 sysctl_relock(); 2368 return error; 2369 } 2370 2371 /* 2372 * sysctl helper routine for kern.proc_args pseudo-subtree. 2373 */ 2374 static int 2375 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2376 { 2377 struct ps_strings pss; 2378 struct proc *p; 2379 size_t len, i; 2380 struct uio auio; 2381 struct iovec aiov; 2382 pid_t pid; 2383 int nargv, type, error, argvlen; 2384 char *arg; 2385 char **argv = NULL; 2386 char *tmp; 2387 struct vmspace *vmspace; 2388 vaddr_t psstr_addr; 2389 vaddr_t offsetn; 2390 vaddr_t offsetv; 2391 2392 if (namelen == 1 && name[0] == CTL_QUERY) 2393 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2394 2395 if (newp != NULL || namelen != 2) 2396 return (EINVAL); 2397 pid = name[0]; 2398 type = name[1]; 2399 argv = NULL; 2400 argvlen = 0; 2401 2402 switch (type) { 2403 case KERN_PROC_ARGV: 2404 case KERN_PROC_NARGV: 2405 case KERN_PROC_ENV: 2406 case KERN_PROC_NENV: 2407 /* ok */ 2408 break; 2409 default: 2410 return (EINVAL); 2411 } 2412 2413 sysctl_unlock(); 2414 2415 /* check pid */ 2416 mutex_enter(&proclist_lock); 2417 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2418 error = EINVAL; 2419 goto out_locked; 2420 } 2421 mutex_enter(&p->p_mutex); 2422 2423 /* Check permission. */ 2424 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2425 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2426 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ARGS), NULL, NULL); 2427 else if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) 2428 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2429 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENV), NULL, NULL); 2430 else 2431 error = EINVAL; /* XXXGCC */ 2432 if (error) { 2433 mutex_exit(&p->p_mutex); 2434 goto out_locked; 2435 } 2436 2437 if (oldp == NULL) { 2438 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2439 *oldlenp = sizeof (int); 2440 else 2441 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2442 error = 0; 2443 mutex_exit(&p->p_mutex); 2444 goto out_locked; 2445 } 2446 2447 /* 2448 * Zombies don't have a stack, so we can't read their psstrings. 2449 * System processes also don't have a user stack. 2450 */ 2451 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2452 error = EINVAL; 2453 mutex_exit(&p->p_mutex); 2454 goto out_locked; 2455 } 2456 2457 /* 2458 * Lock the process down in memory. 2459 */ 2460 psstr_addr = (vaddr_t)p->p_psstr; 2461 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2462 offsetn = p->p_psnargv; 2463 offsetv = p->p_psargv; 2464 } else { 2465 offsetn = p->p_psnenv; 2466 offsetv = p->p_psenv; 2467 } 2468 vmspace = p->p_vmspace; 2469 uvmspace_addref(vmspace); 2470 mutex_exit(&p->p_mutex); 2471 mutex_exit(&proclist_lock); 2472 2473 /* 2474 * Allocate a temporary buffer to hold the arguments. 2475 */ 2476 arg = kmem_alloc(PAGE_SIZE, KM_SLEEP); 2477 2478 /* 2479 * Read in the ps_strings structure. 2480 */ 2481 aiov.iov_base = &pss; 2482 aiov.iov_len = sizeof(pss); 2483 auio.uio_iov = &aiov; 2484 auio.uio_iovcnt = 1; 2485 auio.uio_offset = psstr_addr; 2486 auio.uio_resid = sizeof(pss); 2487 auio.uio_rw = UIO_READ; 2488 UIO_SETUP_SYSSPACE(&auio); 2489 error = uvm_io(&vmspace->vm_map, &auio); 2490 if (error) 2491 goto done; 2492 2493 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2494 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2495 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2496 *oldlenp = sizeof(nargv); 2497 goto done; 2498 } 2499 /* 2500 * Now read the address of the argument vector. 2501 */ 2502 switch (type) { 2503 case KERN_PROC_ARGV: 2504 /* FALLTHROUGH */ 2505 case KERN_PROC_ENV: 2506 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2507 break; 2508 default: 2509 error = EINVAL; 2510 goto done; 2511 } 2512 2513 #ifdef COMPAT_NETBSD32 2514 if (p->p_flag & PK_32) 2515 len = sizeof(netbsd32_charp) * nargv; 2516 else 2517 #endif 2518 len = sizeof(char *) * nargv; 2519 2520 if ((argvlen = len) != 0) 2521 argv = kmem_alloc(len, KM_SLEEP); 2522 2523 aiov.iov_base = argv; 2524 aiov.iov_len = len; 2525 auio.uio_iov = &aiov; 2526 auio.uio_iovcnt = 1; 2527 auio.uio_offset = (off_t)(unsigned long)tmp; 2528 auio.uio_resid = len; 2529 auio.uio_rw = UIO_READ; 2530 UIO_SETUP_SYSSPACE(&auio); 2531 error = uvm_io(&vmspace->vm_map, &auio); 2532 if (error) 2533 goto done; 2534 2535 /* 2536 * Now copy each string. 2537 */ 2538 len = 0; /* bytes written to user buffer */ 2539 for (i = 0; i < nargv; i++) { 2540 int finished = 0; 2541 vaddr_t base; 2542 size_t xlen; 2543 int j; 2544 2545 #ifdef COMPAT_NETBSD32 2546 if (p->p_flag & PK_32) { 2547 netbsd32_charp *argv32; 2548 2549 argv32 = (netbsd32_charp *)argv; 2550 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2551 } else 2552 #endif 2553 base = (vaddr_t)argv[i]; 2554 2555 /* 2556 * The program has messed around with its arguments, 2557 * possibly deleting some, and replacing them with 2558 * NULL's. Treat this as the last argument and not 2559 * a failure. 2560 */ 2561 if (base == 0) 2562 break; 2563 2564 while (!finished) { 2565 xlen = PAGE_SIZE - (base & PAGE_MASK); 2566 2567 aiov.iov_base = arg; 2568 aiov.iov_len = PAGE_SIZE; 2569 auio.uio_iov = &aiov; 2570 auio.uio_iovcnt = 1; 2571 auio.uio_offset = base; 2572 auio.uio_resid = xlen; 2573 auio.uio_rw = UIO_READ; 2574 UIO_SETUP_SYSSPACE(&auio); 2575 error = uvm_io(&vmspace->vm_map, &auio); 2576 if (error) 2577 goto done; 2578 2579 /* Look for the end of the string */ 2580 for (j = 0; j < xlen; j++) { 2581 if (arg[j] == '\0') { 2582 xlen = j + 1; 2583 finished = 1; 2584 break; 2585 } 2586 } 2587 2588 /* Check for user buffer overflow */ 2589 if (len + xlen > *oldlenp) { 2590 finished = 1; 2591 if (len > *oldlenp) 2592 xlen = 0; 2593 else 2594 xlen = *oldlenp - len; 2595 } 2596 2597 /* Copyout the page */ 2598 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2599 if (error) 2600 goto done; 2601 2602 len += xlen; 2603 base += xlen; 2604 } 2605 } 2606 *oldlenp = len; 2607 2608 done: 2609 if (argvlen != 0) 2610 kmem_free(argv, argvlen); 2611 uvmspace_free(vmspace); 2612 kmem_free(arg, PAGE_SIZE); 2613 sysctl_relock(); 2614 return error; 2615 2616 out_locked: 2617 mutex_exit(&proclist_lock); 2618 sysctl_relock(); 2619 return error; 2620 } 2621 2622 static int 2623 sysctl_security_setidcore(SYSCTLFN_ARGS) 2624 { 2625 int newsize, error; 2626 struct sysctlnode node; 2627 2628 node = *rnode; 2629 node.sysctl_data = &newsize; 2630 newsize = *(int *)rnode->sysctl_data; 2631 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2632 if (error || newp == NULL) 2633 return error; 2634 2635 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2636 0, NULL, NULL, NULL)) 2637 return (EPERM); 2638 2639 *(int *)rnode->sysctl_data = newsize; 2640 2641 return 0; 2642 } 2643 2644 static int 2645 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2646 { 2647 int error; 2648 char *newsetidcorename; 2649 struct sysctlnode node; 2650 2651 newsetidcorename = PNBUF_GET(); 2652 node = *rnode; 2653 node.sysctl_data = newsetidcorename; 2654 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2655 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2656 if (error || newp == NULL) { 2657 goto out; 2658 } 2659 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2660 0, NULL, NULL, NULL)) { 2661 error = EPERM; 2662 goto out; 2663 } 2664 if (strlen(newsetidcorename) == 0) { 2665 error = EINVAL; 2666 goto out; 2667 } 2668 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2669 out: 2670 PNBUF_PUT(newsetidcorename); 2671 return error; 2672 } 2673 2674 /* 2675 * sysctl helper routine for kern.cp_id node. Maps cpus to their 2676 * cpuids. 2677 */ 2678 static int 2679 sysctl_kern_cpid(SYSCTLFN_ARGS) 2680 { 2681 struct sysctlnode node = *rnode; 2682 uint64_t *cp_id = NULL; 2683 int error, n = ncpu; 2684 struct cpu_info *ci; 2685 CPU_INFO_ITERATOR cii; 2686 2687 /* 2688 * Here you may either retrieve a single cpu id or the whole 2689 * set. The size you get back when probing depends on what 2690 * you ask for. 2691 */ 2692 switch (namelen) { 2693 case 0: 2694 node.sysctl_size = n * sizeof(uint64_t); 2695 n = -2; /* ALL */ 2696 break; 2697 case 1: 2698 if (name[0] < 0 || name[0] >= n) 2699 return (ENOENT); /* ENOSUCHPROCESSOR */ 2700 node.sysctl_size = sizeof(uint64_t); 2701 n = name[0]; 2702 /* 2703 * adjust these so that sysctl_lookup() will be happy 2704 */ 2705 name++; 2706 namelen--; 2707 break; 2708 default: 2709 return (EINVAL); 2710 } 2711 2712 cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP); 2713 if (cp_id == NULL) 2714 return (ENOMEM); 2715 node.sysctl_data = cp_id; 2716 memset(cp_id, 0, node.sysctl_size); 2717 2718 for (CPU_INFO_FOREACH(cii, ci)) { 2719 if (n <= 0) 2720 cp_id[0] = ci->ci_cpuid; 2721 /* 2722 * if a specific processor was requested and we just 2723 * did it, we're done here 2724 */ 2725 if (n == 0) 2726 break; 2727 /* 2728 * if doing "all", skip to next cp_id slot for next processor 2729 */ 2730 if (n == -2) 2731 cp_id++; 2732 /* 2733 * if we're doing a specific processor, we're one 2734 * processor closer 2735 */ 2736 if (n > 0) 2737 n--; 2738 } 2739 2740 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2741 kmem_free(node.sysctl_data, node.sysctl_size); 2742 return (error); 2743 } 2744 2745 /* 2746 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 2747 * calculate on the fly taking into account integer overflow and the 2748 * current wired count. 2749 */ 2750 static int 2751 sysctl_hw_usermem(SYSCTLFN_ARGS) 2752 { 2753 u_int ui; 2754 u_quad_t uq; 2755 struct sysctlnode node; 2756 2757 node = *rnode; 2758 switch (rnode->sysctl_num) { 2759 case HW_USERMEM: 2760 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2761 ui = UINT_MAX; 2762 else 2763 ui *= PAGE_SIZE; 2764 node.sysctl_data = &ui; 2765 break; 2766 case HW_USERMEM64: 2767 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2768 node.sysctl_data = &uq; 2769 break; 2770 default: 2771 return (EINVAL); 2772 } 2773 2774 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2775 } 2776 2777 /* 2778 * sysctl helper routine for kern.cnmagic node. Pulls the old value 2779 * out, encoded, and stuffs the new value in for decoding. 2780 */ 2781 static int 2782 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2783 { 2784 char magic[CNS_LEN]; 2785 int error; 2786 struct sysctlnode node; 2787 2788 if (oldp) 2789 cn_get_magic(magic, CNS_LEN); 2790 node = *rnode; 2791 node.sysctl_data = &magic[0]; 2792 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2793 if (error || newp == NULL) 2794 return (error); 2795 2796 return (cn_set_magic(magic)); 2797 } 2798 2799 /* 2800 * ******************************************************************** 2801 * section 3: public helper routines that are used for more than one 2802 * node 2803 * ******************************************************************** 2804 */ 2805 2806 /* 2807 * sysctl helper routine for the kern.root_device node and some ports' 2808 * machdep.root_device nodes. 2809 */ 2810 int 2811 sysctl_root_device(SYSCTLFN_ARGS) 2812 { 2813 struct sysctlnode node; 2814 2815 node = *rnode; 2816 node.sysctl_data = root_device->dv_xname; 2817 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2818 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2819 } 2820 2821 /* 2822 * sysctl helper routine for kern.consdev, dependent on the current 2823 * state of the console. Also used for machdep.console_device on some 2824 * ports. 2825 */ 2826 int 2827 sysctl_consdev(SYSCTLFN_ARGS) 2828 { 2829 dev_t consdev; 2830 struct sysctlnode node; 2831 2832 if (cn_tab != NULL) 2833 consdev = cn_tab->cn_dev; 2834 else 2835 consdev = NODEV; 2836 node = *rnode; 2837 node.sysctl_data = &consdev; 2838 node.sysctl_size = sizeof(consdev); 2839 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2840 } 2841 2842 /* 2843 * ******************************************************************** 2844 * section 4: support for some helpers 2845 * ******************************************************************** 2846 */ 2847 2848 /* 2849 * Fill in a kinfo_proc2 structure for the specified process. 2850 */ 2851 static void 2852 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2853 { 2854 struct tty *tp; 2855 struct lwp *l, *l2; 2856 struct timeval ut, st, rt; 2857 sigset_t ss1, ss2; 2858 2859 KASSERT(mutex_owned(&proclist_lock)); 2860 KASSERT(mutex_owned(&p->p_mutex)); 2861 2862 memset(ki, 0, sizeof(*ki)); 2863 2864 ki->p_paddr = PTRTOUINT64(p); 2865 ki->p_fd = PTRTOUINT64(p->p_fd); 2866 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2867 ki->p_stats = PTRTOUINT64(p->p_stats); 2868 ki->p_limit = PTRTOUINT64(p->p_limit); 2869 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2870 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2871 ki->p_sess = PTRTOUINT64(p->p_session); 2872 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2873 ki->p_ru = PTRTOUINT64(&p->p_stats->p_ru); 2874 2875 ki->p_eflag = 0; 2876 ki->p_exitsig = p->p_exitsig; 2877 2878 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2879 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2880 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2881 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2882 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2883 2884 ki->p_pid = p->p_pid; 2885 if (p->p_pptr) 2886 ki->p_ppid = p->p_pptr->p_pid; 2887 else 2888 ki->p_ppid = 0; 2889 ki->p_sid = p->p_session->s_sid; 2890 ki->p__pgid = p->p_pgrp->pg_id; 2891 2892 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2893 2894 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2895 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2896 ki->p_gid = kauth_cred_getegid(p->p_cred); 2897 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2898 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2899 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2900 2901 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2902 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2903 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0])), 2904 UIO_SYSSPACE); 2905 2906 ki->p_jobc = p->p_pgrp->pg_jobc; 2907 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2908 ki->p_tdev = tp->t_dev; 2909 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2910 ki->p_tsess = PTRTOUINT64(tp->t_session); 2911 } else { 2912 ki->p_tdev = NODEV; 2913 } 2914 2915 mutex_enter(&p->p_smutex); 2916 2917 ki->p_uticks = p->p_uticks; 2918 ki->p_sticks = p->p_sticks; 2919 ki->p_iticks = p->p_iticks; 2920 2921 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2922 ki->p_traceflag = p->p_traceflag; 2923 2924 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2925 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2926 2927 ki->p_cpticks = 0; 2928 ki->p_pctcpu = p->p_pctcpu; 2929 ki->p_estcpu = 0; 2930 ss1 = p->p_sigpend.sp_set; 2931 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2932 /* This is hardly correct, but... */ 2933 sigplusset(&l->l_sigpend.sp_set, &ss1); 2934 sigplusset(&l->l_sigmask, &ss2); 2935 ki->p_cpticks += l->l_cpticks; 2936 ki->p_pctcpu += l->l_pctcpu; 2937 ki->p_estcpu += l->l_estcpu; 2938 } 2939 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2940 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2941 2942 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2943 ki->p_realstat = p->p_stat; 2944 ki->p_nice = p->p_nice; 2945 2946 ki->p_xstat = p->p_xstat; 2947 ki->p_acflag = p->p_acflag; 2948 2949 strncpy(ki->p_comm, p->p_comm, 2950 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2951 2952 strncpy(ki->p_login, p->p_session->s_login, 2953 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2954 2955 ki->p_nlwps = p->p_nlwps; 2956 ki->p_realflag = ki->p_flag; 2957 2958 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2959 ki->p_vm_rssize = 0; 2960 ki->p_vm_tsize = 0; 2961 ki->p_vm_dsize = 0; 2962 ki->p_vm_ssize = 0; 2963 ki->p_nrlwps = 0; 2964 l = NULL; 2965 } else { 2966 struct vmspace *vm = p->p_vmspace; 2967 int tmp; 2968 2969 ki->p_vm_rssize = vm_resident_count(vm); 2970 ki->p_vm_tsize = vm->vm_tsize; 2971 ki->p_vm_dsize = vm->vm_dsize; 2972 ki->p_vm_ssize = vm->vm_ssize; 2973 2974 /* Pick a "representative" LWP */ 2975 l = proc_representative_lwp(p, &tmp, 1); 2976 lwp_lock(l); 2977 ki->p_nrlwps = tmp; 2978 ki->p_forw = 0; 2979 ki->p_back = 0; 2980 ki->p_addr = PTRTOUINT64(l->l_addr); 2981 ki->p_stat = l->l_stat; 2982 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2983 ki->p_swtime = l->l_swtime; 2984 ki->p_slptime = l->l_slptime; 2985 if (l->l_stat == LSONPROC) 2986 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2987 else 2988 ki->p_schedflags = 0; 2989 ki->p_holdcnt = l->l_holdcnt; 2990 ki->p_priority = lwp_eprio(l); 2991 ki->p_usrpri = l->l_priority; 2992 if (l->l_wmesg) 2993 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2994 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2995 lwp_unlock(l); 2996 } 2997 if (p->p_session->s_ttyvp) 2998 ki->p_eflag |= EPROC_CTTY; 2999 if (SESS_LEADER(p)) 3000 ki->p_eflag |= EPROC_SLEADER; 3001 3002 /* XXX Is this double check necessary? */ 3003 if (P_ZOMBIE(p)) { 3004 ki->p_uvalid = 0; 3005 ki->p_rtime_sec = 0; 3006 ki->p_rtime_usec = 0; 3007 } else { 3008 ki->p_uvalid = 1; 3009 3010 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 3011 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 3012 3013 calcru(p, &ut, &st, NULL, &rt); 3014 ki->p_rtime_sec = rt.tv_sec; 3015 ki->p_rtime_usec = rt.tv_usec; 3016 ki->p_uutime_sec = ut.tv_sec; 3017 ki->p_uutime_usec = ut.tv_usec; 3018 ki->p_ustime_sec = st.tv_sec; 3019 ki->p_ustime_usec = st.tv_usec; 3020 3021 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 3022 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 3023 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 3024 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 3025 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 3026 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 3027 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 3028 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 3029 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 3030 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 3031 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 3032 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 3033 3034 ki->p_uru_nvcsw = 0; 3035 ki->p_uru_nivcsw = 0; 3036 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 3037 ki->p_uru_nvcsw += (l->l_ncsw - l->l_nivcsw); 3038 ki->p_uru_nivcsw += l->l_nivcsw; 3039 } 3040 3041 timeradd(&p->p_stats->p_cru.ru_utime, 3042 &p->p_stats->p_cru.ru_stime, &ut); 3043 ki->p_uctime_sec = ut.tv_sec; 3044 ki->p_uctime_usec = ut.tv_usec; 3045 } 3046 if (l != NULL) 3047 ki->p_cpuid = l->l_cpu->ci_cpuid; 3048 3049 mutex_exit(&p->p_smutex); 3050 } 3051 3052 /* 3053 * Fill in a kinfo_lwp structure for the specified lwp. 3054 */ 3055 static void 3056 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3057 { 3058 struct proc *p = l->l_proc; 3059 struct timeval tv; 3060 3061 kl->l_forw = 0; 3062 kl->l_back = 0; 3063 kl->l_laddr = PTRTOUINT64(l); 3064 kl->l_addr = PTRTOUINT64(l->l_addr); 3065 kl->l_stat = l->l_stat; 3066 kl->l_lid = l->l_lid; 3067 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 3068 3069 kl->l_swtime = l->l_swtime; 3070 kl->l_slptime = l->l_slptime; 3071 if (l->l_stat == LSONPROC) 3072 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3073 else 3074 kl->l_schedflags = 0; 3075 kl->l_holdcnt = l->l_holdcnt; 3076 kl->l_priority = lwp_eprio(l); 3077 kl->l_usrpri = l->l_priority; 3078 if (l->l_wmesg) 3079 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3080 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3081 kl->l_cpuid = l->l_cpu->ci_cpuid; 3082 bintime2timeval(&l->l_rtime, &tv); 3083 kl->l_rtime_sec = tv.tv_sec; 3084 kl->l_rtime_usec = tv.tv_usec; 3085 kl->l_cpticks = l->l_cpticks; 3086 kl->l_pctcpu = l->l_pctcpu; 3087 kl->l_pid = p->p_pid; 3088 if (l->l_name == NULL) 3089 kl->l_name[0] = '\0'; 3090 else 3091 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 3092 } 3093 3094 /* 3095 * Fill in an eproc structure for the specified process. 3096 */ 3097 void 3098 fill_eproc(struct proc *p, struct eproc *ep) 3099 { 3100 struct tty *tp; 3101 struct lwp *l; 3102 3103 KASSERT(mutex_owned(&proclist_lock)); 3104 KASSERT(mutex_owned(&p->p_mutex)); 3105 3106 ep->e_paddr = p; 3107 ep->e_sess = p->p_session; 3108 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 3109 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 3110 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 3111 ep->e_vm.vm_rssize = 0; 3112 ep->e_vm.vm_tsize = 0; 3113 ep->e_vm.vm_dsize = 0; 3114 ep->e_vm.vm_ssize = 0; 3115 /* ep->e_vm.vm_pmap = XXX; */ 3116 } else { 3117 struct vmspace *vm = p->p_vmspace; 3118 3119 ep->e_vm.vm_rssize = vm_resident_count(vm); 3120 ep->e_vm.vm_tsize = vm->vm_tsize; 3121 ep->e_vm.vm_dsize = vm->vm_dsize; 3122 ep->e_vm.vm_ssize = vm->vm_ssize; 3123 3124 /* Pick a "representative" LWP */ 3125 mutex_enter(&p->p_smutex); 3126 l = proc_representative_lwp(p, NULL, 1); 3127 lwp_lock(l); 3128 if (l->l_wmesg) 3129 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3130 lwp_unlock(l); 3131 mutex_exit(&p->p_smutex); 3132 } 3133 if (p->p_pptr) 3134 ep->e_ppid = p->p_pptr->p_pid; 3135 else 3136 ep->e_ppid = 0; 3137 ep->e_pgid = p->p_pgrp->pg_id; 3138 ep->e_sid = ep->e_sess->s_sid; 3139 ep->e_jobc = p->p_pgrp->pg_jobc; 3140 if ((p->p_lflag & PL_CONTROLT) && 3141 (tp = ep->e_sess->s_ttyp)) { 3142 ep->e_tdev = tp->t_dev; 3143 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3144 ep->e_tsess = tp->t_session; 3145 } else 3146 ep->e_tdev = NODEV; 3147 3148 ep->e_xsize = ep->e_xrssize = 0; 3149 ep->e_xccount = ep->e_xswrss = 0; 3150 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3151 if (SESS_LEADER(p)) 3152 ep->e_flag |= EPROC_SLEADER; 3153 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3154 } 3155 3156 u_int 3157 sysctl_map_flags(const u_int *map, u_int word) 3158 { 3159 u_int rv; 3160 3161 for (rv = 0; *map != 0; map += 2) 3162 if ((word & map[0]) != 0) 3163 rv |= map[1]; 3164 3165 return rv; 3166 } 3167
Indexes created Mon Sep 22 13:09:51 GMT 2025