init_sysctl.c revision 1.121
1 /* $NetBSD: init_sysctl.c,v 1.121 2008/01/28 20:05:21 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 1.121 2008/01/28 20:05:21 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(&filelist_lock); 1331 error = ENOMEM; 1332 mutex_exit(&fp->f_lock); 1333 break; 1334 } 1335 memcpy(&fbuf, fp, sizeof(fbuf)); 1336 LIST_INSERT_AFTER(fp, dp, f_list); 1337 mutex_exit(&fp->f_lock); 1338 mutex_exit(&filelist_lock); 1339 error = dcopyout(l, &fbuf, where, sizeof(fbuf)); 1340 if (error) { 1341 mutex_enter(&filelist_lock); 1342 LIST_REMOVE(dp, f_list); 1343 break; 1344 } 1345 buflen -= sizeof(struct file); 1346 where += sizeof(struct file); 1347 mutex_enter(&filelist_lock); 1348 np = LIST_NEXT(dp, f_list); 1349 LIST_REMOVE(dp, f_list); 1350 } 1351 mutex_exit(&filelist_lock); 1352 *oldlenp = where - start; 1353 if (dp != NULL) 1354 fputdummy(dp); 1355 sysctl_relock(); 1356 return (error); 1357 } 1358 1359 /* 1360 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 1361 * former it merely checks the message buffer is set up. For the latter, 1362 * it also copies out the data if necessary. 1363 */ 1364 static int 1365 sysctl_msgbuf(SYSCTLFN_ARGS) 1366 { 1367 char *where = oldp; 1368 size_t len, maxlen; 1369 long beg, end; 1370 extern kmutex_t log_lock; 1371 int error; 1372 1373 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1374 msgbufenabled = 0; 1375 return (ENXIO); 1376 } 1377 1378 switch (rnode->sysctl_num) { 1379 case KERN_MSGBUFSIZE: { 1380 struct sysctlnode node = *rnode; 1381 int msg_bufs = (int)msgbufp->msg_bufs; 1382 node.sysctl_data = &msg_bufs; 1383 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1384 } 1385 case KERN_MSGBUF: 1386 break; 1387 default: 1388 return (EOPNOTSUPP); 1389 } 1390 1391 if (newp != NULL) 1392 return (EPERM); 1393 1394 if (oldp == NULL) { 1395 /* always return full buffer size */ 1396 *oldlenp = msgbufp->msg_bufs; 1397 return (0); 1398 } 1399 1400 sysctl_unlock(); 1401 1402 /* 1403 * First, copy from the write pointer to the end of 1404 * message buffer. 1405 */ 1406 error = 0; 1407 mutex_spin_enter(&log_lock); 1408 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1409 beg = msgbufp->msg_bufx; 1410 end = msgbufp->msg_bufs; 1411 mutex_spin_exit(&log_lock); 1412 1413 while (maxlen > 0) { 1414 len = MIN(end - beg, maxlen); 1415 if (len == 0) 1416 break; 1417 /* XXX unlocked, but hardly matters. */ 1418 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1419 if (error) 1420 break; 1421 where += len; 1422 maxlen -= len; 1423 1424 /* 1425 * ... then, copy from the beginning of message buffer to 1426 * the write pointer. 1427 */ 1428 beg = 0; 1429 end = msgbufp->msg_bufx; 1430 } 1431 1432 sysctl_relock(); 1433 return (error); 1434 } 1435 1436 /* 1437 * sysctl helper routine for kern.defcorename. In the case of a new 1438 * string being assigned, check that it's not a zero-length string. 1439 * (XXX the check in -current doesn't work, but do we really care?) 1440 */ 1441 static int 1442 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1443 { 1444 int error; 1445 char *newcorename; 1446 struct sysctlnode node; 1447 1448 newcorename = PNBUF_GET(); 1449 node = *rnode; 1450 node.sysctl_data = &newcorename[0]; 1451 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1452 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1453 if (error || newp == NULL) { 1454 goto done; 1455 } 1456 1457 /* 1458 * when sysctl_lookup() deals with a string, it's guaranteed 1459 * to come back nul terminated. So there. :) 1460 */ 1461 if (strlen(newcorename) == 0) { 1462 error = EINVAL; 1463 } else { 1464 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1465 error = 0; 1466 } 1467 done: 1468 PNBUF_PUT(newcorename); 1469 return error; 1470 } 1471 1472 /* 1473 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1474 * across all cpus. 1475 */ 1476 static int 1477 sysctl_kern_cptime(SYSCTLFN_ARGS) 1478 { 1479 struct sysctlnode node = *rnode; 1480 uint64_t *cp_time = NULL; 1481 int error, n = ncpu, i; 1482 struct cpu_info *ci; 1483 CPU_INFO_ITERATOR cii; 1484 1485 /* 1486 * if you specifically pass a buffer that is the size of the 1487 * sum, or if you are probing for the size, you get the "sum" 1488 * of cp_time (and the size thereof) across all processors. 1489 * 1490 * alternately, you can pass an additional mib number and get 1491 * cp_time for that particular processor. 1492 */ 1493 switch (namelen) { 1494 case 0: 1495 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1496 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1497 n = -1; /* SUM */ 1498 } 1499 else { 1500 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1501 n = -2; /* ALL */ 1502 } 1503 break; 1504 case 1: 1505 if (name[0] < 0 || name[0] >= n) 1506 return (ENOENT); /* ENOSUCHPROCESSOR */ 1507 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1508 n = name[0]; 1509 /* 1510 * adjust these so that sysctl_lookup() will be happy 1511 */ 1512 name++; 1513 namelen--; 1514 break; 1515 default: 1516 return (EINVAL); 1517 } 1518 1519 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); 1520 if (cp_time == NULL) 1521 return (ENOMEM); 1522 node.sysctl_data = cp_time; 1523 memset(cp_time, 0, node.sysctl_size); 1524 1525 for (CPU_INFO_FOREACH(cii, ci)) { 1526 if (n <= 0) { 1527 for (i = 0; i < CPUSTATES; i++) { 1528 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1529 } 1530 } 1531 /* 1532 * if a specific processor was requested and we just 1533 * did it, we're done here 1534 */ 1535 if (n == 0) 1536 break; 1537 /* 1538 * if doing "all", skip to next cp_time set for next processor 1539 */ 1540 if (n == -2) 1541 cp_time += CPUSTATES; 1542 /* 1543 * if we're doing a specific processor, we're one 1544 * processor closer 1545 */ 1546 if (n > 0) 1547 n--; 1548 } 1549 1550 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1551 kmem_free(node.sysctl_data, node.sysctl_size); 1552 return (error); 1553 } 1554 1555 #if NPTY > 0 1556 /* 1557 * sysctl helper routine for kern.maxptys. Ensures that any new value 1558 * is acceptable to the pty subsystem. 1559 */ 1560 static int 1561 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1562 { 1563 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1564 int error, xmax; 1565 struct sysctlnode node; 1566 1567 /* get current value of maxptys */ 1568 xmax = pty_maxptys(0, 0); 1569 1570 node = *rnode; 1571 node.sysctl_data = &xmax; 1572 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1573 if (error || newp == NULL) 1574 return (error); 1575 1576 if (xmax != pty_maxptys(xmax, 1)) 1577 return (EINVAL); 1578 1579 return (0); 1580 } 1581 #endif /* NPTY > 0 */ 1582 1583 /* 1584 * sysctl helper routine for kern.sbmax. Basically just ensures that 1585 * any new value is not too small. 1586 */ 1587 static int 1588 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1589 { 1590 int error, new_sbmax; 1591 struct sysctlnode node; 1592 1593 new_sbmax = sb_max; 1594 node = *rnode; 1595 node.sysctl_data = &new_sbmax; 1596 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1597 if (error || newp == NULL) 1598 return (error); 1599 1600 KERNEL_LOCK(1, NULL); 1601 error = sb_max_set(new_sbmax); 1602 KERNEL_UNLOCK_ONE(NULL); 1603 1604 return (error); 1605 } 1606 1607 /* 1608 * sysctl helper routine for kern.urandom node. Picks a random number 1609 * for you. 1610 */ 1611 static int 1612 sysctl_kern_urnd(SYSCTLFN_ARGS) 1613 { 1614 #if NRND > 0 1615 int v, rv; 1616 1617 KERNEL_LOCK(1, NULL); 1618 rv = rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY); 1619 KERNEL_UNLOCK_ONE(NULL); 1620 if (rv == sizeof(v)) { 1621 struct sysctlnode node = *rnode; 1622 node.sysctl_data = &v; 1623 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1624 } 1625 else 1626 return (EIO); /*XXX*/ 1627 #else 1628 return (EOPNOTSUPP); 1629 #endif 1630 } 1631 1632 /* 1633 * sysctl helper routine for kern.arandom node. Picks a random number 1634 * for you. 1635 */ 1636 static int 1637 sysctl_kern_arnd(SYSCTLFN_ARGS) 1638 { 1639 #if NRND > 0 1640 int error; 1641 void *v; 1642 struct sysctlnode node = *rnode; 1643 1644 if (*oldlenp == 0) 1645 return 0; 1646 if (*oldlenp > 8192) 1647 return E2BIG; 1648 1649 v = kmem_alloc(*oldlenp, KM_SLEEP); 1650 arc4randbytes(v, *oldlenp); 1651 node.sysctl_data = v; 1652 node.sysctl_size = *oldlenp; 1653 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1654 kmem_free(v, *oldlenp); 1655 return error; 1656 #else 1657 return (EOPNOTSUPP); 1658 #endif 1659 } 1660 /* 1661 * sysctl helper routine to do kern.lwp.* work. 1662 */ 1663 static int 1664 sysctl_kern_lwp(SYSCTLFN_ARGS) 1665 { 1666 struct kinfo_lwp klwp; 1667 struct proc *p; 1668 struct lwp *l2, *l3; 1669 char *where, *dp; 1670 int pid, elem_size, elem_count; 1671 int buflen, needed, error; 1672 bool gotit; 1673 1674 if (namelen == 1 && name[0] == CTL_QUERY) 1675 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1676 1677 dp = where = oldp; 1678 buflen = where != NULL ? *oldlenp : 0; 1679 error = needed = 0; 1680 1681 if (newp != NULL || namelen != 3) 1682 return (EINVAL); 1683 pid = name[0]; 1684 elem_size = name[1]; 1685 elem_count = name[2]; 1686 1687 sysctl_unlock(); 1688 if (pid == -1) { 1689 mutex_enter(&proclist_lock); 1690 LIST_FOREACH(p, &allproc, p_list) { 1691 /* Grab a hold on the process. */ 1692 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 1693 continue; 1694 } 1695 mutex_exit(&proclist_lock); 1696 1697 mutex_enter(&p->p_smutex); 1698 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1699 if (buflen >= elem_size && elem_count > 0) { 1700 lwp_lock(l2); 1701 fill_lwp(l2, &klwp); 1702 lwp_unlock(l2); 1703 mutex_exit(&p->p_smutex); 1704 1705 /* 1706 * Copy out elem_size, but not 1707 * larger than the size of a 1708 * struct kinfo_proc2. 1709 */ 1710 error = dcopyout(l, &klwp, dp, 1711 min(sizeof(klwp), elem_size)); 1712 if (error) { 1713 rw_exit(&p->p_reflock); 1714 goto cleanup; 1715 } 1716 mutex_enter(&p->p_smutex); 1717 LIST_FOREACH(l3, &p->p_lwps, 1718 l_sibling) { 1719 if (l2 == l3) 1720 break; 1721 } 1722 if (l3 == NULL) { 1723 mutex_exit(&p->p_smutex); 1724 rw_exit(&p->p_reflock); 1725 error = EAGAIN; 1726 goto cleanup; 1727 } 1728 dp += elem_size; 1729 buflen -= elem_size; 1730 elem_count--; 1731 } 1732 needed += elem_size; 1733 } 1734 mutex_exit(&p->p_smutex); 1735 1736 /* Drop reference to process. */ 1737 mutex_enter(&proclist_lock); 1738 rw_exit(&p->p_reflock); 1739 } 1740 mutex_exit(&proclist_lock); 1741 } else { 1742 mutex_enter(&proclist_lock); 1743 p = p_find(pid, PFIND_LOCKED); 1744 if (p == NULL) { 1745 error = ESRCH; 1746 mutex_exit(&proclist_lock); 1747 goto cleanup; 1748 } 1749 /* Grab a hold on the process. */ 1750 gotit = rw_tryenter(&p->p_reflock, RW_READER); 1751 mutex_exit(&proclist_lock); 1752 if (!gotit) { 1753 error = ESRCH; 1754 goto cleanup; 1755 } 1756 1757 mutex_enter(&p->p_smutex); 1758 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1759 if (buflen >= elem_size && elem_count > 0) { 1760 lwp_lock(l2); 1761 fill_lwp(l2, &klwp); 1762 lwp_unlock(l2); 1763 mutex_exit(&p->p_smutex); 1764 /* 1765 * Copy out elem_size, but not larger than 1766 * the size of a struct kinfo_proc2. 1767 */ 1768 error = dcopyout(l, &klwp, dp, 1769 min(sizeof(klwp), elem_size)); 1770 if (error) { 1771 rw_exit(&p->p_reflock); 1772 goto cleanup; 1773 } 1774 mutex_enter(&p->p_smutex); 1775 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1776 if (l2 == l3) 1777 break; 1778 } 1779 if (l3 == NULL) { 1780 mutex_exit(&p->p_smutex); 1781 rw_exit(&p->p_reflock); 1782 error = EAGAIN; 1783 goto cleanup; 1784 } 1785 dp += elem_size; 1786 buflen -= elem_size; 1787 elem_count--; 1788 } 1789 needed += elem_size; 1790 } 1791 mutex_exit(&p->p_smutex); 1792 1793 /* Drop reference to process. */ 1794 rw_exit(&p->p_reflock); 1795 } 1796 1797 if (where != NULL) { 1798 *oldlenp = dp - where; 1799 if (needed > *oldlenp) { 1800 sysctl_relock(); 1801 return (ENOMEM); 1802 } 1803 } else { 1804 needed += KERN_LWPSLOP; 1805 *oldlenp = needed; 1806 } 1807 error = 0; 1808 cleanup: 1809 sysctl_relock(); 1810 return (error); 1811 } 1812 1813 /* 1814 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1815 * given value is not too large or two small, and is at least one 1816 * timer tick if not zero. 1817 */ 1818 static int 1819 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1820 { 1821 /* userland sees value in ms, internally is in ticks */ 1822 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1823 int error, timo, lsleep; 1824 struct sysctlnode node; 1825 1826 lsleep = forkfsleep * 1000 / hz; 1827 node = *rnode; 1828 node.sysctl_data = &lsleep; 1829 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1830 if (error || newp == NULL) 1831 return (error); 1832 1833 /* refuse negative values, and overly 'long time' */ 1834 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1835 return (EINVAL); 1836 1837 timo = mstohz(lsleep); 1838 1839 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1840 if (lsleep != 0 && timo == 0) 1841 forkfsleep = 1; 1842 else 1843 forkfsleep = timo; 1844 1845 return (0); 1846 } 1847 1848 /* 1849 * sysctl helper routine for kern.root_partition 1850 */ 1851 static int 1852 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1853 { 1854 int rootpart = DISKPART(rootdev); 1855 struct sysctlnode node = *rnode; 1856 1857 node.sysctl_data = &rootpart; 1858 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1859 } 1860 1861 /* 1862 * sysctl helper function for kern.drivers 1863 */ 1864 static int 1865 sysctl_kern_drivers(SYSCTLFN_ARGS) 1866 { 1867 int error; 1868 size_t buflen; 1869 struct kinfo_drivers kd; 1870 char *start, *where; 1871 const char *dname; 1872 int i; 1873 extern struct devsw_conv *devsw_conv; 1874 extern int max_devsw_convs; 1875 extern kmutex_t devsw_lock; 1876 1877 if (newp != NULL || namelen != 0) 1878 return (EINVAL); 1879 1880 start = where = oldp; 1881 buflen = *oldlenp; 1882 if (where == NULL) { 1883 *oldlenp = max_devsw_convs * sizeof kd; 1884 return 0; 1885 } 1886 1887 /* 1888 * An array of kinfo_drivers structures 1889 */ 1890 error = 0; 1891 sysctl_unlock(); 1892 mutex_enter(&devsw_lock); 1893 for (i = 0; i < max_devsw_convs; i++) { 1894 dname = devsw_conv[i].d_name; 1895 if (dname == NULL) 1896 continue; 1897 if (buflen < sizeof kd) { 1898 error = ENOMEM; 1899 break; 1900 } 1901 memset(&kd, 0, sizeof(kd)); 1902 kd.d_bmajor = devsw_conv[i].d_bmajor; 1903 kd.d_cmajor = devsw_conv[i].d_cmajor; 1904 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1905 mutex_exit(&devsw_lock); 1906 error = dcopyout(l, &kd, where, sizeof kd); 1907 mutex_enter(&devsw_lock); 1908 if (error != 0) 1909 break; 1910 buflen -= sizeof kd; 1911 where += sizeof kd; 1912 } 1913 mutex_exit(&devsw_lock); 1914 sysctl_relock(); 1915 *oldlenp = where - start; 1916 return error; 1917 } 1918 1919 /* 1920 * sysctl helper function for kern.file2 1921 */ 1922 static int 1923 sysctl_kern_file2(SYSCTLFN_ARGS) 1924 { 1925 struct proc *p; 1926 struct file *fp, *tp, *np; 1927 struct filedesc *fd; 1928 struct kinfo_file kf; 1929 char *dp; 1930 u_int i, op; 1931 size_t len, needed, elem_size, out_size; 1932 int error, arg, elem_count; 1933 1934 if (namelen == 1 && name[0] == CTL_QUERY) 1935 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1936 1937 if (namelen != 4) 1938 return (EINVAL); 1939 1940 error = 0; 1941 dp = oldp; 1942 len = (oldp != NULL) ? *oldlenp : 0; 1943 op = name[0]; 1944 arg = name[1]; 1945 elem_size = name[2]; 1946 elem_count = name[3]; 1947 out_size = MIN(sizeof(kf), elem_size); 1948 needed = 0; 1949 1950 if (elem_size < 1 || elem_count < 0) 1951 return (EINVAL); 1952 1953 switch (op) { 1954 case KERN_FILE_BYFILE: 1955 /* 1956 * doesn't use arg so it must be zero 1957 */ 1958 if (arg != 0) 1959 return (EINVAL); 1960 sysctl_unlock(); 1961 /* 1962 * allocate dummy file descriptor to make position in list 1963 */ 1964 if ((tp = fgetdummy()) == NULL) { 1965 sysctl_relock(); 1966 return ENOMEM; 1967 } 1968 mutex_enter(&filelist_lock); 1969 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1970 np = LIST_NEXT(fp, f_list); 1971 mutex_enter(&fp->f_lock); 1972 if (fp->f_count == 0) { 1973 mutex_exit(&fp->f_lock); 1974 continue; 1975 } 1976 /* 1977 * XXX Need to prevent that from being an alternative 1978 * XXX way for getting process information. 1979 */ 1980 if (kauth_authorize_generic(l->l_cred, 1981 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1982 mutex_exit(&fp->f_lock); 1983 continue; 1984 } 1985 if (len >= elem_size && elem_count > 0) { 1986 fill_file(&kf, fp, NULL, 0); 1987 LIST_INSERT_AFTER(fp, tp, f_list); 1988 mutex_exit(&fp->f_lock); 1989 mutex_exit(&filelist_lock); 1990 error = dcopyout(l, &kf, dp, out_size); 1991 mutex_enter(&filelist_lock); 1992 np = LIST_NEXT(tp, f_list); 1993 LIST_REMOVE(tp, f_list); 1994 if (error) { 1995 break; 1996 } 1997 dp += elem_size; 1998 len -= elem_size; 1999 } else { 2000 mutex_exit(&fp->f_lock); 2001 } 2002 if (elem_count > 0) { 2003 needed += elem_size; 2004 if (elem_count != INT_MAX) 2005 elem_count--; 2006 } 2007 } 2008 mutex_exit(&filelist_lock); 2009 fputdummy(tp); 2010 sysctl_relock(); 2011 break; 2012 case KERN_FILE_BYPID: 2013 if (arg < -1) 2014 /* -1 means all processes */ 2015 return (EINVAL); 2016 sysctl_unlock(); 2017 mutex_enter(&proclist_lock); 2018 LIST_FOREACH(p, &allproc, p_list) { 2019 if (p->p_stat == SIDL) { 2020 /* skip embryonic processes */ 2021 continue; 2022 } 2023 if (arg > 0 && p->p_pid != arg) { 2024 /* pick only the one we want */ 2025 /* XXX want 0 to mean "kernel files" */ 2026 continue; 2027 } 2028 mutex_enter(&p->p_mutex); 2029 error = kauth_authorize_process(l->l_cred, 2030 KAUTH_PROCESS_CANSEE, p, 2031 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_OPENFILES), 2032 NULL, NULL); 2033 mutex_exit(&p->p_mutex); 2034 if (error != 0) { 2035 continue; 2036 } 2037 2038 /* 2039 * Grab a hold on the process. 2040 */ 2041 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 2042 continue; 2043 } 2044 mutex_exit(&proclist_lock); 2045 2046 /* XXX Do we need to check permission per file? */ 2047 fd = p->p_fd; 2048 rw_enter(&fd->fd_lock, RW_READER); 2049 for (i = 0; i < fd->fd_nfiles; i++) { 2050 fp = fd->fd_ofiles[i]; 2051 if (fp == NULL) { 2052 continue; 2053 } 2054 mutex_enter(&fp->f_lock); 2055 if (!FILE_IS_USABLE(fp)) { 2056 mutex_exit(&fp->f_lock); 2057 continue; 2058 } 2059 if (len >= elem_size && elem_count > 0) { 2060 fill_file(&kf, fd->fd_ofiles[i], p, i); 2061 mutex_exit(&fp->f_lock); 2062 rw_exit(&fd->fd_lock); 2063 error = dcopyout(l, &kf, dp, out_size); 2064 rw_enter(&fd->fd_lock, RW_READER); 2065 if (error) 2066 break; 2067 dp += elem_size; 2068 len -= elem_size; 2069 } else { 2070 mutex_exit(&fp->f_lock); 2071 } 2072 if (elem_count > 0) { 2073 needed += elem_size; 2074 if (elem_count != INT_MAX) 2075 elem_count--; 2076 } 2077 } 2078 rw_exit(&fd->fd_lock); 2079 2080 /* 2081 * Release reference to process. 2082 */ 2083 mutex_enter(&proclist_lock); 2084 rw_exit(&p->p_reflock); 2085 } 2086 mutex_exit(&proclist_lock); 2087 sysctl_relock(); 2088 break; 2089 default: 2090 return (EINVAL); 2091 } 2092 2093 if (oldp == NULL) 2094 needed += KERN_FILESLOP * elem_size; 2095 *oldlenp = needed; 2096 2097 return (error); 2098 } 2099 2100 static void 2101 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2102 { 2103 2104 memset(kp, 0, sizeof(*kp)); 2105 2106 kp->ki_fileaddr = PTRTOUINT64(fp); 2107 kp->ki_flag = fp->f_flag; 2108 kp->ki_iflags = fp->f_iflags; 2109 kp->ki_ftype = fp->f_type; 2110 kp->ki_count = fp->f_count; 2111 kp->ki_msgcount = fp->f_msgcount; 2112 kp->ki_usecount = fp->f_usecount; 2113 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2114 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2115 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2116 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2117 kp->ki_foffset = fp->f_offset; 2118 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2119 2120 /* vnode information to glue this file to something */ 2121 if (fp->f_type == DTYPE_VNODE) { 2122 struct vnode *vp = (struct vnode *)fp->f_data; 2123 2124 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2125 kp->ki_vsize = vp->v_size; 2126 kp->ki_vtype = vp->v_type; 2127 kp->ki_vtag = vp->v_tag; 2128 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2129 } 2130 2131 /* process information when retrieved via KERN_FILE_BYPID */ 2132 if (p) { 2133 KASSERT(rw_lock_held(&p->p_fd->fd_lock)); 2134 2135 kp->ki_pid = p->p_pid; 2136 kp->ki_fd = i; 2137 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2138 } 2139 } 2140 2141 static int 2142 sysctl_doeproc(SYSCTLFN_ARGS) 2143 { 2144 struct eproc *eproc; 2145 struct kinfo_proc2 *kproc2; 2146 struct kinfo_proc *dp; 2147 struct proc *p; 2148 char *where, *dp2; 2149 int type, op, arg; 2150 u_int elem_size, elem_count; 2151 size_t buflen, needed; 2152 bool match; 2153 int error; 2154 2155 if (namelen == 1 && name[0] == CTL_QUERY) 2156 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2157 2158 dp = oldp; 2159 dp2 = where = oldp; 2160 buflen = where != NULL ? *oldlenp : 0; 2161 error = 0; 2162 needed = 0; 2163 type = rnode->sysctl_num; 2164 2165 if (type == KERN_PROC) { 2166 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2167 return (EINVAL); 2168 op = name[0]; 2169 if (op != KERN_PROC_ALL) 2170 arg = name[1]; 2171 else 2172 arg = 0; /* Quell compiler warning */ 2173 elem_size = elem_count = 0; /* Ditto */ 2174 } else { 2175 if (namelen != 4) 2176 return (EINVAL); 2177 op = name[0]; 2178 arg = name[1]; 2179 elem_size = name[2]; 2180 elem_count = name[3]; 2181 } 2182 2183 sysctl_unlock(); 2184 2185 if (type == KERN_PROC) { 2186 eproc = kmem_alloc(sizeof(*eproc), KM_SLEEP); 2187 kproc2 = NULL; 2188 } else { 2189 eproc = NULL; 2190 kproc2 = kmem_alloc(sizeof(*kproc2), KM_SLEEP); 2191 } 2192 2193 mutex_enter(&proclist_lock); 2194 LIST_FOREACH(p, &allproc, p_list) { 2195 /* 2196 * Skip embryonic processes. 2197 */ 2198 if (p->p_stat == SIDL) 2199 continue; 2200 2201 mutex_enter(&p->p_mutex); 2202 error = kauth_authorize_process(l->l_cred, 2203 KAUTH_PROCESS_CANSEE, p, 2204 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENTRY), NULL, NULL); 2205 if (error != 0) { 2206 mutex_exit(&p->p_mutex); 2207 continue; 2208 } 2209 2210 /* 2211 * TODO - make more efficient (see notes below). 2212 * do by session. 2213 */ 2214 switch (op) { 2215 case KERN_PROC_PID: 2216 /* could do this with just a lookup */ 2217 match = (p->p_pid == (pid_t)arg); 2218 break; 2219 2220 case KERN_PROC_PGRP: 2221 /* could do this by traversing pgrp */ 2222 match = (p->p_pgrp->pg_id == (pid_t)arg); 2223 break; 2224 2225 case KERN_PROC_SESSION: 2226 match = (p->p_session->s_sid == (pid_t)arg); 2227 break; 2228 2229 case KERN_PROC_TTY: 2230 match = true; 2231 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2232 if ((p->p_lflag & PL_CONTROLT) == 0 || 2233 p->p_session->s_ttyp == NULL || 2234 p->p_session->s_ttyvp != NULL) { 2235 match = false; 2236 } 2237 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2238 p->p_session->s_ttyp == NULL) { 2239 if ((dev_t)arg != KERN_PROC_TTY_NODEV) { 2240 match = false; 2241 } 2242 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) { 2243 match = false; 2244 } 2245 break; 2246 2247 case KERN_PROC_UID: 2248 match = (kauth_cred_geteuid(p->p_cred) == (uid_t)arg); 2249 break; 2250 2251 case KERN_PROC_RUID: 2252 match = (kauth_cred_getuid(p->p_cred) == (uid_t)arg); 2253 break; 2254 2255 case KERN_PROC_GID: 2256 match = (kauth_cred_getegid(p->p_cred) == (uid_t)arg); 2257 break; 2258 2259 case KERN_PROC_RGID: 2260 match = (kauth_cred_getgid(p->p_cred) == (uid_t)arg); 2261 break; 2262 2263 case KERN_PROC_ALL: 2264 match = true; 2265 /* allow everything */ 2266 break; 2267 2268 default: 2269 error = EINVAL; 2270 mutex_exit(&p->p_mutex); 2271 goto cleanup; 2272 } 2273 if (!match) { 2274 mutex_exit(&p->p_mutex); 2275 continue; 2276 } 2277 2278 /* 2279 * Grab a hold on the process. 2280 */ 2281 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 2282 mutex_exit(&p->p_mutex); 2283 continue; 2284 } 2285 2286 if (type == KERN_PROC) { 2287 if (buflen >= sizeof(struct kinfo_proc)) { 2288 fill_eproc(p, eproc); 2289 mutex_exit(&p->p_mutex); 2290 mutex_exit(&proclist_lock); 2291 error = dcopyout(l, p, &dp->kp_proc, 2292 sizeof(struct proc)); 2293 mutex_enter(&proclist_lock); 2294 if (error) { 2295 rw_exit(&p->p_reflock); 2296 goto cleanup; 2297 } 2298 error = dcopyout(l, eproc, &dp->kp_eproc, 2299 sizeof(*eproc)); 2300 if (error) { 2301 rw_exit(&p->p_reflock); 2302 goto cleanup; 2303 } 2304 dp++; 2305 buflen -= sizeof(struct kinfo_proc); 2306 } else { 2307 mutex_exit(&p->p_mutex); 2308 } 2309 needed += sizeof(struct kinfo_proc); 2310 } else { /* KERN_PROC2 */ 2311 if (buflen >= elem_size && elem_count > 0) { 2312 fill_kproc2(p, kproc2); 2313 mutex_exit(&p->p_mutex); 2314 mutex_exit(&proclist_lock); 2315 /* 2316 * Copy out elem_size, but not larger than 2317 * the size of a struct kinfo_proc2. 2318 */ 2319 error = dcopyout(l, kproc2, dp2, 2320 min(sizeof(*kproc2), elem_size)); 2321 mutex_enter(&proclist_lock); 2322 if (error) { 2323 rw_exit(&p->p_reflock); 2324 goto cleanup; 2325 } 2326 dp2 += elem_size; 2327 buflen -= elem_size; 2328 elem_count--; 2329 } else { 2330 mutex_exit(&p->p_mutex); 2331 } 2332 needed += elem_size; 2333 } 2334 2335 /* 2336 * Release reference to process. 2337 */ 2338 rw_exit(&p->p_reflock); 2339 } 2340 mutex_exit(&proclist_lock); 2341 2342 if (where != NULL) { 2343 if (type == KERN_PROC) 2344 *oldlenp = (char *)dp - where; 2345 else 2346 *oldlenp = dp2 - where; 2347 if (needed > *oldlenp) { 2348 error = ENOMEM; 2349 goto out; 2350 } 2351 } else { 2352 needed += KERN_PROCSLOP; 2353 *oldlenp = needed; 2354 } 2355 if (kproc2) 2356 kmem_free(kproc2, sizeof(*kproc2)); 2357 if (eproc) 2358 kmem_free(eproc, sizeof(*eproc)); 2359 sysctl_relock(); 2360 return 0; 2361 cleanup: 2362 mutex_exit(&proclist_lock); 2363 out: 2364 if (kproc2) 2365 kmem_free(kproc2, sizeof(*kproc2)); 2366 if (eproc) 2367 kmem_free(eproc, sizeof(*eproc)); 2368 sysctl_relock(); 2369 return error; 2370 } 2371 2372 /* 2373 * sysctl helper routine for kern.proc_args pseudo-subtree. 2374 */ 2375 static int 2376 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2377 { 2378 struct ps_strings pss; 2379 struct proc *p; 2380 size_t len, i; 2381 struct uio auio; 2382 struct iovec aiov; 2383 pid_t pid; 2384 int nargv, type, error, argvlen; 2385 char *arg; 2386 char **argv = NULL; 2387 char *tmp; 2388 struct vmspace *vmspace; 2389 vaddr_t psstr_addr; 2390 vaddr_t offsetn; 2391 vaddr_t offsetv; 2392 2393 if (namelen == 1 && name[0] == CTL_QUERY) 2394 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2395 2396 if (newp != NULL || namelen != 2) 2397 return (EINVAL); 2398 pid = name[0]; 2399 type = name[1]; 2400 argv = NULL; 2401 argvlen = 0; 2402 2403 switch (type) { 2404 case KERN_PROC_ARGV: 2405 case KERN_PROC_NARGV: 2406 case KERN_PROC_ENV: 2407 case KERN_PROC_NENV: 2408 /* ok */ 2409 break; 2410 default: 2411 return (EINVAL); 2412 } 2413 2414 sysctl_unlock(); 2415 2416 /* check pid */ 2417 mutex_enter(&proclist_lock); 2418 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2419 error = EINVAL; 2420 goto out_locked; 2421 } 2422 mutex_enter(&p->p_mutex); 2423 2424 /* Check permission. */ 2425 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2426 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2427 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ARGS), NULL, NULL); 2428 else if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) 2429 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2430 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENV), NULL, NULL); 2431 else 2432 error = EINVAL; /* XXXGCC */ 2433 if (error) { 2434 mutex_exit(&p->p_mutex); 2435 goto out_locked; 2436 } 2437 2438 if (oldp == NULL) { 2439 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2440 *oldlenp = sizeof (int); 2441 else 2442 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2443 error = 0; 2444 mutex_exit(&p->p_mutex); 2445 goto out_locked; 2446 } 2447 2448 /* 2449 * Zombies don't have a stack, so we can't read their psstrings. 2450 * System processes also don't have a user stack. 2451 */ 2452 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2453 error = EINVAL; 2454 mutex_exit(&p->p_mutex); 2455 goto out_locked; 2456 } 2457 2458 /* 2459 * Lock the process down in memory. 2460 */ 2461 psstr_addr = (vaddr_t)p->p_psstr; 2462 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2463 offsetn = p->p_psnargv; 2464 offsetv = p->p_psargv; 2465 } else { 2466 offsetn = p->p_psnenv; 2467 offsetv = p->p_psenv; 2468 } 2469 vmspace = p->p_vmspace; 2470 uvmspace_addref(vmspace); 2471 mutex_exit(&p->p_mutex); 2472 mutex_exit(&proclist_lock); 2473 2474 /* 2475 * Allocate a temporary buffer to hold the arguments. 2476 */ 2477 arg = kmem_alloc(PAGE_SIZE, KM_SLEEP); 2478 2479 /* 2480 * Read in the ps_strings structure. 2481 */ 2482 aiov.iov_base = &pss; 2483 aiov.iov_len = sizeof(pss); 2484 auio.uio_iov = &aiov; 2485 auio.uio_iovcnt = 1; 2486 auio.uio_offset = psstr_addr; 2487 auio.uio_resid = sizeof(pss); 2488 auio.uio_rw = UIO_READ; 2489 UIO_SETUP_SYSSPACE(&auio); 2490 error = uvm_io(&vmspace->vm_map, &auio); 2491 if (error) 2492 goto done; 2493 2494 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2495 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2496 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2497 *oldlenp = sizeof(nargv); 2498 goto done; 2499 } 2500 /* 2501 * Now read the address of the argument vector. 2502 */ 2503 switch (type) { 2504 case KERN_PROC_ARGV: 2505 /* FALLTHROUGH */ 2506 case KERN_PROC_ENV: 2507 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2508 break; 2509 default: 2510 error = EINVAL; 2511 goto done; 2512 } 2513 2514 #ifdef COMPAT_NETBSD32 2515 if (p->p_flag & PK_32) 2516 len = sizeof(netbsd32_charp) * nargv; 2517 else 2518 #endif 2519 len = sizeof(char *) * nargv; 2520 2521 if ((argvlen = len) != 0) 2522 argv = kmem_alloc(len, KM_SLEEP); 2523 2524 aiov.iov_base = argv; 2525 aiov.iov_len = len; 2526 auio.uio_iov = &aiov; 2527 auio.uio_iovcnt = 1; 2528 auio.uio_offset = (off_t)(unsigned long)tmp; 2529 auio.uio_resid = len; 2530 auio.uio_rw = UIO_READ; 2531 UIO_SETUP_SYSSPACE(&auio); 2532 error = uvm_io(&vmspace->vm_map, &auio); 2533 if (error) 2534 goto done; 2535 2536 /* 2537 * Now copy each string. 2538 */ 2539 len = 0; /* bytes written to user buffer */ 2540 for (i = 0; i < nargv; i++) { 2541 int finished = 0; 2542 vaddr_t base; 2543 size_t xlen; 2544 int j; 2545 2546 #ifdef COMPAT_NETBSD32 2547 if (p->p_flag & PK_32) { 2548 netbsd32_charp *argv32; 2549 2550 argv32 = (netbsd32_charp *)argv; 2551 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2552 } else 2553 #endif 2554 base = (vaddr_t)argv[i]; 2555 2556 /* 2557 * The program has messed around with its arguments, 2558 * possibly deleting some, and replacing them with 2559 * NULL's. Treat this as the last argument and not 2560 * a failure. 2561 */ 2562 if (base == 0) 2563 break; 2564 2565 while (!finished) { 2566 xlen = PAGE_SIZE - (base & PAGE_MASK); 2567 2568 aiov.iov_base = arg; 2569 aiov.iov_len = PAGE_SIZE; 2570 auio.uio_iov = &aiov; 2571 auio.uio_iovcnt = 1; 2572 auio.uio_offset = base; 2573 auio.uio_resid = xlen; 2574 auio.uio_rw = UIO_READ; 2575 UIO_SETUP_SYSSPACE(&auio); 2576 error = uvm_io(&vmspace->vm_map, &auio); 2577 if (error) 2578 goto done; 2579 2580 /* Look for the end of the string */ 2581 for (j = 0; j < xlen; j++) { 2582 if (arg[j] == '\0') { 2583 xlen = j + 1; 2584 finished = 1; 2585 break; 2586 } 2587 } 2588 2589 /* Check for user buffer overflow */ 2590 if (len + xlen > *oldlenp) { 2591 finished = 1; 2592 if (len > *oldlenp) 2593 xlen = 0; 2594 else 2595 xlen = *oldlenp - len; 2596 } 2597 2598 /* Copyout the page */ 2599 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2600 if (error) 2601 goto done; 2602 2603 len += xlen; 2604 base += xlen; 2605 } 2606 } 2607 *oldlenp = len; 2608 2609 done: 2610 if (argvlen != 0) 2611 kmem_free(argv, argvlen); 2612 uvmspace_free(vmspace); 2613 kmem_free(arg, PAGE_SIZE); 2614 sysctl_relock(); 2615 return error; 2616 2617 out_locked: 2618 mutex_exit(&proclist_lock); 2619 sysctl_relock(); 2620 return error; 2621 } 2622 2623 static int 2624 sysctl_security_setidcore(SYSCTLFN_ARGS) 2625 { 2626 int newsize, error; 2627 struct sysctlnode node; 2628 2629 node = *rnode; 2630 node.sysctl_data = &newsize; 2631 newsize = *(int *)rnode->sysctl_data; 2632 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2633 if (error || newp == NULL) 2634 return error; 2635 2636 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2637 0, NULL, NULL, NULL)) 2638 return (EPERM); 2639 2640 *(int *)rnode->sysctl_data = newsize; 2641 2642 return 0; 2643 } 2644 2645 static int 2646 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2647 { 2648 int error; 2649 char *newsetidcorename; 2650 struct sysctlnode node; 2651 2652 newsetidcorename = PNBUF_GET(); 2653 node = *rnode; 2654 node.sysctl_data = newsetidcorename; 2655 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2656 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2657 if (error || newp == NULL) { 2658 goto out; 2659 } 2660 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2661 0, NULL, NULL, NULL)) { 2662 error = EPERM; 2663 goto out; 2664 } 2665 if (strlen(newsetidcorename) == 0) { 2666 error = EINVAL; 2667 goto out; 2668 } 2669 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2670 out: 2671 PNBUF_PUT(newsetidcorename); 2672 return error; 2673 } 2674 2675 /* 2676 * sysctl helper routine for kern.cp_id node. Maps cpus to their 2677 * cpuids. 2678 */ 2679 static int 2680 sysctl_kern_cpid(SYSCTLFN_ARGS) 2681 { 2682 struct sysctlnode node = *rnode; 2683 uint64_t *cp_id = NULL; 2684 int error, n = ncpu; 2685 struct cpu_info *ci; 2686 CPU_INFO_ITERATOR cii; 2687 2688 /* 2689 * Here you may either retrieve a single cpu id or the whole 2690 * set. The size you get back when probing depends on what 2691 * you ask for. 2692 */ 2693 switch (namelen) { 2694 case 0: 2695 node.sysctl_size = n * sizeof(uint64_t); 2696 n = -2; /* ALL */ 2697 break; 2698 case 1: 2699 if (name[0] < 0 || name[0] >= n) 2700 return (ENOENT); /* ENOSUCHPROCESSOR */ 2701 node.sysctl_size = sizeof(uint64_t); 2702 n = name[0]; 2703 /* 2704 * adjust these so that sysctl_lookup() will be happy 2705 */ 2706 name++; 2707 namelen--; 2708 break; 2709 default: 2710 return (EINVAL); 2711 } 2712 2713 cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP); 2714 if (cp_id == NULL) 2715 return (ENOMEM); 2716 node.sysctl_data = cp_id; 2717 memset(cp_id, 0, node.sysctl_size); 2718 2719 for (CPU_INFO_FOREACH(cii, ci)) { 2720 if (n <= 0) 2721 cp_id[0] = ci->ci_cpuid; 2722 /* 2723 * if a specific processor was requested and we just 2724 * did it, we're done here 2725 */ 2726 if (n == 0) 2727 break; 2728 /* 2729 * if doing "all", skip to next cp_id slot for next processor 2730 */ 2731 if (n == -2) 2732 cp_id++; 2733 /* 2734 * if we're doing a specific processor, we're one 2735 * processor closer 2736 */ 2737 if (n > 0) 2738 n--; 2739 } 2740 2741 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2742 kmem_free(node.sysctl_data, node.sysctl_size); 2743 return (error); 2744 } 2745 2746 /* 2747 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 2748 * calculate on the fly taking into account integer overflow and the 2749 * current wired count. 2750 */ 2751 static int 2752 sysctl_hw_usermem(SYSCTLFN_ARGS) 2753 { 2754 u_int ui; 2755 u_quad_t uq; 2756 struct sysctlnode node; 2757 2758 node = *rnode; 2759 switch (rnode->sysctl_num) { 2760 case HW_USERMEM: 2761 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2762 ui = UINT_MAX; 2763 else 2764 ui *= PAGE_SIZE; 2765 node.sysctl_data = &ui; 2766 break; 2767 case HW_USERMEM64: 2768 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2769 node.sysctl_data = &uq; 2770 break; 2771 default: 2772 return (EINVAL); 2773 } 2774 2775 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2776 } 2777 2778 /* 2779 * sysctl helper routine for kern.cnmagic node. Pulls the old value 2780 * out, encoded, and stuffs the new value in for decoding. 2781 */ 2782 static int 2783 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2784 { 2785 char magic[CNS_LEN]; 2786 int error; 2787 struct sysctlnode node; 2788 2789 if (oldp) 2790 cn_get_magic(magic, CNS_LEN); 2791 node = *rnode; 2792 node.sysctl_data = &magic[0]; 2793 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2794 if (error || newp == NULL) 2795 return (error); 2796 2797 return (cn_set_magic(magic)); 2798 } 2799 2800 /* 2801 * ******************************************************************** 2802 * section 3: public helper routines that are used for more than one 2803 * node 2804 * ******************************************************************** 2805 */ 2806 2807 /* 2808 * sysctl helper routine for the kern.root_device node and some ports' 2809 * machdep.root_device nodes. 2810 */ 2811 int 2812 sysctl_root_device(SYSCTLFN_ARGS) 2813 { 2814 struct sysctlnode node; 2815 2816 node = *rnode; 2817 node.sysctl_data = root_device->dv_xname; 2818 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2819 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2820 } 2821 2822 /* 2823 * sysctl helper routine for kern.consdev, dependent on the current 2824 * state of the console. Also used for machdep.console_device on some 2825 * ports. 2826 */ 2827 int 2828 sysctl_consdev(SYSCTLFN_ARGS) 2829 { 2830 dev_t consdev; 2831 struct sysctlnode node; 2832 2833 if (cn_tab != NULL) 2834 consdev = cn_tab->cn_dev; 2835 else 2836 consdev = NODEV; 2837 node = *rnode; 2838 node.sysctl_data = &consdev; 2839 node.sysctl_size = sizeof(consdev); 2840 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2841 } 2842 2843 /* 2844 * ******************************************************************** 2845 * section 4: support for some helpers 2846 * ******************************************************************** 2847 */ 2848 2849 /* 2850 * Fill in a kinfo_proc2 structure for the specified process. 2851 */ 2852 static void 2853 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2854 { 2855 struct tty *tp; 2856 struct lwp *l, *l2; 2857 struct timeval ut, st, rt; 2858 sigset_t ss1, ss2; 2859 2860 KASSERT(mutex_owned(&proclist_lock)); 2861 KASSERT(mutex_owned(&p->p_mutex)); 2862 2863 memset(ki, 0, sizeof(*ki)); 2864 2865 ki->p_paddr = PTRTOUINT64(p); 2866 ki->p_fd = PTRTOUINT64(p->p_fd); 2867 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2868 ki->p_stats = PTRTOUINT64(p->p_stats); 2869 ki->p_limit = PTRTOUINT64(p->p_limit); 2870 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2871 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2872 ki->p_sess = PTRTOUINT64(p->p_session); 2873 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2874 ki->p_ru = PTRTOUINT64(&p->p_stats->p_ru); 2875 2876 ki->p_eflag = 0; 2877 ki->p_exitsig = p->p_exitsig; 2878 2879 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2880 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2881 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2882 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2883 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2884 2885 ki->p_pid = p->p_pid; 2886 if (p->p_pptr) 2887 ki->p_ppid = p->p_pptr->p_pid; 2888 else 2889 ki->p_ppid = 0; 2890 ki->p_sid = p->p_session->s_sid; 2891 ki->p__pgid = p->p_pgrp->pg_id; 2892 2893 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2894 2895 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2896 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2897 ki->p_gid = kauth_cred_getegid(p->p_cred); 2898 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2899 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2900 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2901 2902 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2903 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2904 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0])), 2905 UIO_SYSSPACE); 2906 2907 ki->p_jobc = p->p_pgrp->pg_jobc; 2908 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2909 ki->p_tdev = tp->t_dev; 2910 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2911 ki->p_tsess = PTRTOUINT64(tp->t_session); 2912 } else { 2913 ki->p_tdev = NODEV; 2914 } 2915 2916 mutex_enter(&p->p_smutex); 2917 2918 ki->p_uticks = p->p_uticks; 2919 ki->p_sticks = p->p_sticks; 2920 ki->p_iticks = p->p_iticks; 2921 2922 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2923 ki->p_traceflag = p->p_traceflag; 2924 2925 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2926 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2927 2928 ki->p_cpticks = 0; 2929 ki->p_pctcpu = p->p_pctcpu; 2930 ki->p_estcpu = 0; 2931 ss1 = p->p_sigpend.sp_set; 2932 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2933 /* This is hardly correct, but... */ 2934 sigplusset(&l->l_sigpend.sp_set, &ss1); 2935 sigplusset(&l->l_sigmask, &ss2); 2936 ki->p_cpticks += l->l_cpticks; 2937 ki->p_pctcpu += l->l_pctcpu; 2938 ki->p_estcpu += l->l_estcpu; 2939 } 2940 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2941 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2942 2943 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2944 ki->p_realstat = p->p_stat; 2945 ki->p_nice = p->p_nice; 2946 2947 ki->p_xstat = p->p_xstat; 2948 ki->p_acflag = p->p_acflag; 2949 2950 strncpy(ki->p_comm, p->p_comm, 2951 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2952 2953 strncpy(ki->p_login, p->p_session->s_login, 2954 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2955 2956 ki->p_nlwps = p->p_nlwps; 2957 ki->p_realflag = ki->p_flag; 2958 2959 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2960 ki->p_vm_rssize = 0; 2961 ki->p_vm_tsize = 0; 2962 ki->p_vm_dsize = 0; 2963 ki->p_vm_ssize = 0; 2964 ki->p_nrlwps = 0; 2965 l = NULL; 2966 } else { 2967 struct vmspace *vm = p->p_vmspace; 2968 int tmp; 2969 2970 ki->p_vm_rssize = vm_resident_count(vm); 2971 ki->p_vm_tsize = vm->vm_tsize; 2972 ki->p_vm_dsize = vm->vm_dsize; 2973 ki->p_vm_ssize = vm->vm_ssize; 2974 2975 /* Pick a "representative" LWP */ 2976 l = proc_representative_lwp(p, &tmp, 1); 2977 lwp_lock(l); 2978 ki->p_nrlwps = tmp; 2979 ki->p_forw = 0; 2980 ki->p_back = 0; 2981 ki->p_addr = PTRTOUINT64(l->l_addr); 2982 ki->p_stat = l->l_stat; 2983 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2984 ki->p_swtime = l->l_swtime; 2985 ki->p_slptime = l->l_slptime; 2986 if (l->l_stat == LSONPROC) 2987 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2988 else 2989 ki->p_schedflags = 0; 2990 ki->p_holdcnt = l->l_holdcnt; 2991 ki->p_priority = lwp_eprio(l); 2992 ki->p_usrpri = l->l_priority; 2993 if (l->l_wmesg) 2994 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2995 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2996 lwp_unlock(l); 2997 } 2998 if (p->p_session->s_ttyvp) 2999 ki->p_eflag |= EPROC_CTTY; 3000 if (SESS_LEADER(p)) 3001 ki->p_eflag |= EPROC_SLEADER; 3002 3003 /* XXX Is this double check necessary? */ 3004 if (P_ZOMBIE(p)) { 3005 ki->p_uvalid = 0; 3006 ki->p_rtime_sec = 0; 3007 ki->p_rtime_usec = 0; 3008 } else { 3009 ki->p_uvalid = 1; 3010 3011 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 3012 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 3013 3014 calcru(p, &ut, &st, NULL, &rt); 3015 ki->p_rtime_sec = rt.tv_sec; 3016 ki->p_rtime_usec = rt.tv_usec; 3017 ki->p_uutime_sec = ut.tv_sec; 3018 ki->p_uutime_usec = ut.tv_usec; 3019 ki->p_ustime_sec = st.tv_sec; 3020 ki->p_ustime_usec = st.tv_usec; 3021 3022 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 3023 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 3024 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 3025 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 3026 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 3027 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 3028 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 3029 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 3030 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 3031 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 3032 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 3033 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 3034 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 } 3041 3042 timeradd(&p->p_stats->p_cru.ru_utime, 3043 &p->p_stats->p_cru.ru_stime, &ut); 3044 ki->p_uctime_sec = ut.tv_sec; 3045 ki->p_uctime_usec = ut.tv_usec; 3046 } 3047 if (l != NULL) 3048 ki->p_cpuid = l->l_cpu->ci_cpuid; 3049 3050 mutex_exit(&p->p_smutex); 3051 } 3052 3053 /* 3054 * Fill in a kinfo_lwp structure for the specified lwp. 3055 */ 3056 static void 3057 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3058 { 3059 struct proc *p = l->l_proc; 3060 struct timeval tv; 3061 3062 kl->l_forw = 0; 3063 kl->l_back = 0; 3064 kl->l_laddr = PTRTOUINT64(l); 3065 kl->l_addr = PTRTOUINT64(l->l_addr); 3066 kl->l_stat = l->l_stat; 3067 kl->l_lid = l->l_lid; 3068 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 3069 3070 kl->l_swtime = l->l_swtime; 3071 kl->l_slptime = l->l_slptime; 3072 if (l->l_stat == LSONPROC) 3073 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3074 else 3075 kl->l_schedflags = 0; 3076 kl->l_holdcnt = l->l_holdcnt; 3077 kl->l_priority = lwp_eprio(l); 3078 kl->l_usrpri = l->l_priority; 3079 if (l->l_wmesg) 3080 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3081 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3082 kl->l_cpuid = l->l_cpu->ci_cpuid; 3083 bintime2timeval(&l->l_rtime, &tv); 3084 kl->l_rtime_sec = tv.tv_sec; 3085 kl->l_rtime_usec = tv.tv_usec; 3086 kl->l_cpticks = l->l_cpticks; 3087 kl->l_pctcpu = l->l_pctcpu; 3088 kl->l_pid = p->p_pid; 3089 if (l->l_name == NULL) 3090 kl->l_name[0] = '\0'; 3091 else 3092 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 3093 } 3094 3095 /* 3096 * Fill in an eproc structure for the specified process. 3097 */ 3098 void 3099 fill_eproc(struct proc *p, struct eproc *ep) 3100 { 3101 struct tty *tp; 3102 struct lwp *l; 3103 3104 KASSERT(mutex_owned(&proclist_lock)); 3105 KASSERT(mutex_owned(&p->p_mutex)); 3106 3107 ep->e_paddr = p; 3108 ep->e_sess = p->p_session; 3109 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 3110 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 3111 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 3112 ep->e_vm.vm_rssize = 0; 3113 ep->e_vm.vm_tsize = 0; 3114 ep->e_vm.vm_dsize = 0; 3115 ep->e_vm.vm_ssize = 0; 3116 /* ep->e_vm.vm_pmap = XXX; */ 3117 } else { 3118 struct vmspace *vm = p->p_vmspace; 3119 3120 ep->e_vm.vm_rssize = vm_resident_count(vm); 3121 ep->e_vm.vm_tsize = vm->vm_tsize; 3122 ep->e_vm.vm_dsize = vm->vm_dsize; 3123 ep->e_vm.vm_ssize = vm->vm_ssize; 3124 3125 /* Pick a "representative" LWP */ 3126 mutex_enter(&p->p_smutex); 3127 l = proc_representative_lwp(p, NULL, 1); 3128 lwp_lock(l); 3129 if (l->l_wmesg) 3130 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3131 lwp_unlock(l); 3132 mutex_exit(&p->p_smutex); 3133 } 3134 if (p->p_pptr) 3135 ep->e_ppid = p->p_pptr->p_pid; 3136 else 3137 ep->e_ppid = 0; 3138 ep->e_pgid = p->p_pgrp->pg_id; 3139 ep->e_sid = ep->e_sess->s_sid; 3140 ep->e_jobc = p->p_pgrp->pg_jobc; 3141 if ((p->p_lflag & PL_CONTROLT) && 3142 (tp = ep->e_sess->s_ttyp)) { 3143 ep->e_tdev = tp->t_dev; 3144 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3145 ep->e_tsess = tp->t_session; 3146 } else 3147 ep->e_tdev = NODEV; 3148 3149 ep->e_xsize = ep->e_xrssize = 0; 3150 ep->e_xccount = ep->e_xswrss = 0; 3151 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3152 if (SESS_LEADER(p)) 3153 ep->e_flag |= EPROC_SLEADER; 3154 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3155 } 3156 3157 u_int 3158 sysctl_map_flags(const u_int *map, u_int word) 3159 { 3160 u_int rv; 3161 3162 for (rv = 0; *map != 0; map += 2) 3163 if ((word & map[0]) != 0) 3164 rv |= map[1]; 3165 3166 return rv; 3167 } 3168
Indexes created Fri Sep 26 08:10:20 GMT 2025