init_sysctl.c revision 1.140
1 /* $NetBSD: init_sysctl.c,v 1.140 2008/05/31 21:34:42 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: init_sysctl.c,v 1.140 2008/05/31 21:34:42 ad Exp $"); 34 35 #include "opt_sysv.h" 36 #include "opt_posix.h" 37 #include "opt_compat_netbsd32.h" 38 #include "pty.h" 39 #include "rnd.h" 40 41 #include <sys/types.h> 42 #include <sys/param.h> 43 #include <sys/sysctl.h> 44 #include <sys/cpu.h> 45 #include <sys/errno.h> 46 #include <sys/systm.h> 47 #include <sys/kernel.h> 48 #include <sys/unistd.h> 49 #include <sys/disklabel.h> 50 #include <sys/rnd.h> 51 #include <sys/vnode.h> 52 #include <sys/mount.h> 53 #include <sys/namei.h> 54 #include <sys/msgbuf.h> 55 #include <dev/cons.h> 56 #include <sys/socketvar.h> 57 #include <sys/file.h> 58 #include <sys/filedesc.h> 59 #include <sys/tty.h> 60 #include <sys/malloc.h> 61 #include <sys/resource.h> 62 #include <sys/resourcevar.h> 63 #include <sys/exec.h> 64 #include <sys/conf.h> 65 #include <sys/device.h> 66 #include <sys/stat.h> 67 #include <sys/kauth.h> 68 #include <sys/ktrace.h> 69 70 #include <miscfs/specfs/specdev.h> 71 72 #ifdef COMPAT_NETBSD32 73 #include <compat/netbsd32/netbsd32.h> 74 #endif 75 76 #include <sys/cpu.h> 77 78 /* XXX this should not be here */ 79 int security_setidcore_dump; 80 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 81 uid_t security_setidcore_owner = 0; 82 gid_t security_setidcore_group = 0; 83 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 84 85 static const u_int sysctl_flagmap[] = { 86 PK_ADVLOCK, P_ADVLOCK, 87 PK_EXEC, P_EXEC, 88 PK_NOCLDWAIT, P_NOCLDWAIT, 89 PK_32, P_32, 90 PK_CLDSIGIGN, P_CLDSIGIGN, 91 PK_SUGID, P_SUGID, 92 0 93 }; 94 95 static const u_int sysctl_sflagmap[] = { 96 PS_NOCLDSTOP, P_NOCLDSTOP, 97 PS_PPWAIT, P_PPWAIT, 98 PS_WEXIT, P_WEXIT, 99 PS_STOPFORK, P_STOPFORK, 100 PS_STOPEXEC, P_STOPEXEC, 101 PS_STOPEXIT, P_STOPEXIT, 102 0 103 }; 104 105 static const u_int sysctl_slflagmap[] = { 106 PSL_TRACED, P_TRACED, 107 PSL_FSTRACE, P_FSTRACE, 108 PSL_CHTRACED, P_CHTRACED, 109 PSL_SYSCALL, P_SYSCALL, 110 0 111 }; 112 113 static const u_int sysctl_lflagmap[] = { 114 PL_CONTROLT, P_CONTROLT, 115 0 116 }; 117 118 static const u_int sysctl_stflagmap[] = { 119 PST_PROFIL, P_PROFIL, 120 0 121 122 }; 123 124 static const u_int sysctl_lwpflagmap[] = { 125 LW_INMEM, P_INMEM, 126 LW_SINTR, P_SINTR, 127 LW_SYSTEM, P_SYSTEM, 128 0 129 }; 130 131 static const u_int sysctl_lwpprflagmap[] = { 132 LPR_DETACHED, L_DETACHED, 133 0 134 }; 135 136 /* 137 * try over estimating by 5 procs/lwps 138 */ 139 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 140 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 141 142 static int dcopyout(struct lwp *, const void *, void *, size_t); 143 144 static int 145 dcopyout(struct lwp *l, const void *kaddr, void *uaddr, size_t len) 146 { 147 int error; 148 149 error = copyout(kaddr, uaddr, len); 150 ktrmibio(-1, UIO_READ, uaddr, len, error); 151 152 return error; 153 } 154 155 #ifdef DIAGNOSTIC 156 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 157 #endif 158 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 159 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 160 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 161 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 162 static int sysctl_setlen(SYSCTLFN_PROTO); 163 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 164 static int sysctl_kern_file(SYSCTLFN_PROTO); 165 static int sysctl_msgbuf(SYSCTLFN_PROTO); 166 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 167 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 168 #if NPTY > 0 169 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 170 #endif /* NPTY > 0 */ 171 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 172 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 173 static int sysctl_kern_arnd(SYSCTLFN_PROTO); 174 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 175 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 176 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 177 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 178 static int sysctl_kern_file2(SYSCTLFN_PROTO); 179 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 180 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 181 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 182 static int sysctl_doeproc(SYSCTLFN_PROTO); 183 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 184 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 185 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 186 187 static u_int sysctl_map_flags(const u_int *, u_int); 188 static void fill_kproc2(struct proc *, struct kinfo_proc2 *, bool); 189 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 190 static void fill_file(struct kinfo_file *, const file_t *, const fdfile_t *, 191 int, pid_t); 192 193 /* 194 * ******************************************************************** 195 * section 1: setup routines 196 * ******************************************************************** 197 * These functions are stuffed into a link set for sysctl setup 198 * functions. They're never called or referenced from anywhere else. 199 * ******************************************************************** 200 */ 201 202 /* 203 * sets up the base nodes... 204 */ 205 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 206 { 207 208 sysctl_createv(clog, 0, NULL, NULL, 209 CTLFLAG_PERMANENT, 210 CTLTYPE_NODE, "kern", 211 SYSCTL_DESCR("High kernel"), 212 NULL, 0, NULL, 0, 213 CTL_KERN, CTL_EOL); 214 sysctl_createv(clog, 0, NULL, NULL, 215 CTLFLAG_PERMANENT, 216 CTLTYPE_NODE, "vm", 217 SYSCTL_DESCR("Virtual memory"), 218 NULL, 0, NULL, 0, 219 CTL_VM, CTL_EOL); 220 sysctl_createv(clog, 0, NULL, NULL, 221 CTLFLAG_PERMANENT, 222 CTLTYPE_NODE, "vfs", 223 SYSCTL_DESCR("Filesystem"), 224 NULL, 0, NULL, 0, 225 CTL_VFS, CTL_EOL); 226 sysctl_createv(clog, 0, NULL, NULL, 227 CTLFLAG_PERMANENT, 228 CTLTYPE_NODE, "net", 229 SYSCTL_DESCR("Networking"), 230 NULL, 0, NULL, 0, 231 CTL_NET, CTL_EOL); 232 sysctl_createv(clog, 0, NULL, NULL, 233 CTLFLAG_PERMANENT, 234 CTLTYPE_NODE, "debug", 235 SYSCTL_DESCR("Debugging"), 236 NULL, 0, NULL, 0, 237 CTL_DEBUG, CTL_EOL); 238 sysctl_createv(clog, 0, NULL, NULL, 239 CTLFLAG_PERMANENT, 240 CTLTYPE_NODE, "hw", 241 SYSCTL_DESCR("Generic CPU, I/O"), 242 NULL, 0, NULL, 0, 243 CTL_HW, CTL_EOL); 244 sysctl_createv(clog, 0, NULL, NULL, 245 CTLFLAG_PERMANENT, 246 CTLTYPE_NODE, "machdep", 247 SYSCTL_DESCR("Machine dependent"), 248 NULL, 0, NULL, 0, 249 CTL_MACHDEP, CTL_EOL); 250 /* 251 * this node is inserted so that the sysctl nodes in libc can 252 * operate. 253 */ 254 sysctl_createv(clog, 0, NULL, NULL, 255 CTLFLAG_PERMANENT, 256 CTLTYPE_NODE, "user", 257 SYSCTL_DESCR("User-level"), 258 NULL, 0, NULL, 0, 259 CTL_USER, CTL_EOL); 260 sysctl_createv(clog, 0, NULL, NULL, 261 CTLFLAG_PERMANENT, 262 CTLTYPE_NODE, "ddb", 263 SYSCTL_DESCR("In-kernel debugger"), 264 NULL, 0, NULL, 0, 265 CTL_DDB, CTL_EOL); 266 sysctl_createv(clog, 0, NULL, NULL, 267 CTLFLAG_PERMANENT, 268 CTLTYPE_NODE, "proc", 269 SYSCTL_DESCR("Per-process"), 270 NULL, 0, NULL, 0, 271 CTL_PROC, CTL_EOL); 272 sysctl_createv(clog, 0, NULL, NULL, 273 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 274 CTLTYPE_NODE, "vendor", 275 SYSCTL_DESCR("Vendor specific"), 276 NULL, 0, NULL, 0, 277 CTL_VENDOR, CTL_EOL); 278 sysctl_createv(clog, 0, NULL, NULL, 279 CTLFLAG_PERMANENT, 280 CTLTYPE_NODE, "emul", 281 SYSCTL_DESCR("Emulation settings"), 282 NULL, 0, NULL, 0, 283 CTL_EMUL, CTL_EOL); 284 sysctl_createv(clog, 0, NULL, NULL, 285 CTLFLAG_PERMANENT, 286 CTLTYPE_NODE, "security", 287 SYSCTL_DESCR("Security"), 288 NULL, 0, NULL, 0, 289 CTL_SECURITY, CTL_EOL); 290 } 291 292 /* 293 * this setup routine is a replacement for kern_sysctl() 294 */ 295 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 296 { 297 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 298 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 299 extern int dumponpanic; /* defined in kern/subr_prf.c */ 300 const struct sysctlnode *rnode; 301 302 sysctl_createv(clog, 0, NULL, NULL, 303 CTLFLAG_PERMANENT, 304 CTLTYPE_NODE, "kern", NULL, 305 NULL, 0, NULL, 0, 306 CTL_KERN, CTL_EOL); 307 308 sysctl_createv(clog, 0, NULL, NULL, 309 CTLFLAG_PERMANENT, 310 CTLTYPE_STRING, "ostype", 311 SYSCTL_DESCR("Operating system type"), 312 NULL, 0, &ostype, 0, 313 CTL_KERN, KERN_OSTYPE, CTL_EOL); 314 sysctl_createv(clog, 0, NULL, NULL, 315 CTLFLAG_PERMANENT, 316 CTLTYPE_STRING, "osrelease", 317 SYSCTL_DESCR("Operating system release"), 318 NULL, 0, &osrelease, 0, 319 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 320 sysctl_createv(clog, 0, NULL, NULL, 321 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 322 CTLTYPE_INT, "osrevision", 323 SYSCTL_DESCR("Operating system revision"), 324 NULL, __NetBSD_Version__, NULL, 0, 325 CTL_KERN, KERN_OSREV, CTL_EOL); 326 sysctl_createv(clog, 0, NULL, NULL, 327 CTLFLAG_PERMANENT, 328 CTLTYPE_STRING, "version", 329 SYSCTL_DESCR("Kernel version"), 330 NULL, 0, &version, 0, 331 CTL_KERN, KERN_VERSION, CTL_EOL); 332 sysctl_createv(clog, 0, NULL, NULL, 333 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 334 CTLTYPE_INT, "maxvnodes", 335 SYSCTL_DESCR("Maximum number of vnodes"), 336 sysctl_kern_maxvnodes, 0, NULL, 0, 337 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 338 sysctl_createv(clog, 0, NULL, NULL, 339 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 340 CTLTYPE_INT, "maxproc", 341 SYSCTL_DESCR("Maximum number of simultaneous processes"), 342 sysctl_kern_maxproc, 0, NULL, 0, 343 CTL_KERN, KERN_MAXPROC, CTL_EOL); 344 sysctl_createv(clog, 0, NULL, NULL, 345 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 346 CTLTYPE_INT, "maxfiles", 347 SYSCTL_DESCR("Maximum number of open files"), 348 NULL, 0, &maxfiles, 0, 349 CTL_KERN, KERN_MAXFILES, CTL_EOL); 350 sysctl_createv(clog, 0, NULL, NULL, 351 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 352 CTLTYPE_INT, "argmax", 353 SYSCTL_DESCR("Maximum number of bytes of arguments to " 354 "execve(2)"), 355 NULL, ARG_MAX, NULL, 0, 356 CTL_KERN, KERN_ARGMAX, CTL_EOL); 357 sysctl_createv(clog, 0, NULL, NULL, 358 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 359 CTLTYPE_STRING, "hostname", 360 SYSCTL_DESCR("System hostname"), 361 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 362 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 363 sysctl_createv(clog, 0, NULL, NULL, 364 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 365 CTLTYPE_INT, "hostid", 366 SYSCTL_DESCR("System host ID number"), 367 sysctl_kern_hostid, 0, NULL, 0, 368 CTL_KERN, KERN_HOSTID, CTL_EOL); 369 sysctl_createv(clog, 0, NULL, NULL, 370 CTLFLAG_PERMANENT, 371 CTLTYPE_STRUCT, "clockrate", 372 SYSCTL_DESCR("Kernel clock rates"), 373 sysctl_kern_clockrate, 0, NULL, 374 sizeof(struct clockinfo), 375 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 376 sysctl_createv(clog, 0, NULL, NULL, 377 CTLFLAG_PERMANENT, 378 CTLTYPE_INT, "hardclock_ticks", 379 SYSCTL_DESCR("Number of hardclock ticks"), 380 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 381 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 382 sysctl_createv(clog, 0, NULL, NULL, 383 CTLFLAG_PERMANENT, 384 CTLTYPE_STRUCT, "vnode", 385 SYSCTL_DESCR("System vnode table"), 386 sysctl_kern_vnode, 0, NULL, 0, 387 CTL_KERN, KERN_VNODE, CTL_EOL); 388 sysctl_createv(clog, 0, NULL, NULL, 389 CTLFLAG_PERMANENT, 390 CTLTYPE_STRUCT, "file", 391 SYSCTL_DESCR("System open file table"), 392 sysctl_kern_file, 0, NULL, 0, 393 CTL_KERN, KERN_FILE, CTL_EOL); 394 #ifndef GPROF 395 sysctl_createv(clog, 0, NULL, NULL, 396 CTLFLAG_PERMANENT, 397 CTLTYPE_NODE, "profiling", 398 SYSCTL_DESCR("Profiling information (not available)"), 399 sysctl_notavail, 0, NULL, 0, 400 CTL_KERN, KERN_PROF, CTL_EOL); 401 #endif 402 sysctl_createv(clog, 0, NULL, NULL, 403 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 404 CTLTYPE_INT, "posix1version", 405 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 406 "with which the operating system attempts " 407 "to comply"), 408 NULL, _POSIX_VERSION, NULL, 0, 409 CTL_KERN, KERN_POSIX1, CTL_EOL); 410 sysctl_createv(clog, 0, NULL, NULL, 411 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 412 CTLTYPE_INT, "ngroups", 413 SYSCTL_DESCR("Maximum number of supplemental groups"), 414 NULL, NGROUPS_MAX, NULL, 0, 415 CTL_KERN, KERN_NGROUPS, CTL_EOL); 416 sysctl_createv(clog, 0, NULL, NULL, 417 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 418 CTLTYPE_INT, "job_control", 419 SYSCTL_DESCR("Whether job control is available"), 420 NULL, 1, NULL, 0, 421 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 422 sysctl_createv(clog, 0, NULL, NULL, 423 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 424 CTLTYPE_INT, "saved_ids", 425 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 426 "available"), NULL, 427 #ifdef _POSIX_SAVED_IDS 428 1, 429 #else /* _POSIX_SAVED_IDS */ 430 0, 431 #endif /* _POSIX_SAVED_IDS */ 432 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 433 sysctl_createv(clog, 0, NULL, NULL, 434 CTLFLAG_PERMANENT, 435 CTLTYPE_STRUCT, "boottime", 436 SYSCTL_DESCR("System boot time"), 437 NULL, 0, &boottime, sizeof(boottime), 438 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 439 sysctl_createv(clog, 0, NULL, NULL, 440 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 441 CTLTYPE_STRING, "domainname", 442 SYSCTL_DESCR("YP domain name"), 443 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 444 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 445 sysctl_createv(clog, 0, NULL, NULL, 446 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 447 CTLTYPE_INT, "maxpartitions", 448 SYSCTL_DESCR("Maximum number of partitions allowed per " 449 "disk"), 450 NULL, MAXPARTITIONS, NULL, 0, 451 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 452 sysctl_createv(clog, 0, NULL, NULL, 453 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 454 CTLTYPE_INT, "rawpartition", 455 SYSCTL_DESCR("Raw partition of a disk"), 456 NULL, RAW_PART, NULL, 0, 457 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 458 sysctl_createv(clog, 0, NULL, NULL, 459 CTLFLAG_PERMANENT, 460 CTLTYPE_STRUCT, "timex", NULL, 461 sysctl_notavail, 0, NULL, 0, 462 CTL_KERN, KERN_TIMEX, CTL_EOL); 463 sysctl_createv(clog, 0, NULL, NULL, 464 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 465 CTLTYPE_INT, "rtc_offset", 466 SYSCTL_DESCR("Offset of real time clock from UTC in " 467 "minutes"), 468 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 469 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 470 sysctl_createv(clog, 0, NULL, NULL, 471 CTLFLAG_PERMANENT, 472 CTLTYPE_STRING, "root_device", 473 SYSCTL_DESCR("Name of the root device"), 474 sysctl_root_device, 0, NULL, 0, 475 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 476 sysctl_createv(clog, 0, NULL, NULL, 477 CTLFLAG_PERMANENT, 478 CTLTYPE_INT, "msgbufsize", 479 SYSCTL_DESCR("Size of the kernel message buffer"), 480 sysctl_msgbuf, 0, NULL, 0, 481 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 482 sysctl_createv(clog, 0, NULL, NULL, 483 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 484 CTLTYPE_INT, "fsync", 485 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 486 "Synchronization Option is available on " 487 "this system"), 488 NULL, 1, NULL, 0, 489 CTL_KERN, KERN_FSYNC, CTL_EOL); 490 sysctl_createv(clog, 0, NULL, NULL, 491 CTLFLAG_PERMANENT, 492 CTLTYPE_NODE, "ipc", 493 SYSCTL_DESCR("SysV IPC options"), 494 NULL, 0, NULL, 0, 495 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 496 sysctl_createv(clog, 0, NULL, NULL, 497 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 498 CTLTYPE_INT, "sysvmsg", 499 SYSCTL_DESCR("System V style message support available"), 500 NULL, 501 #ifdef SYSVMSG 502 1, 503 #else /* SYSVMSG */ 504 0, 505 #endif /* SYSVMSG */ 506 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 507 sysctl_createv(clog, 0, NULL, NULL, 508 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 509 CTLTYPE_INT, "sysvsem", 510 SYSCTL_DESCR("System V style semaphore support " 511 "available"), NULL, 512 #ifdef SYSVSEM 513 1, 514 #else /* SYSVSEM */ 515 0, 516 #endif /* SYSVSEM */ 517 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 518 sysctl_createv(clog, 0, NULL, NULL, 519 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 520 CTLTYPE_INT, "sysvshm", 521 SYSCTL_DESCR("System V style shared memory support " 522 "available"), NULL, 523 #ifdef SYSVSHM 524 1, 525 #else /* SYSVSHM */ 526 0, 527 #endif /* SYSVSHM */ 528 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 529 sysctl_createv(clog, 0, NULL, NULL, 530 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 531 CTLTYPE_INT, "synchronized_io", 532 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 533 "I/O Option is available on this system"), 534 NULL, 1, NULL, 0, 535 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 536 sysctl_createv(clog, 0, NULL, NULL, 537 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 538 CTLTYPE_INT, "iov_max", 539 SYSCTL_DESCR("Maximum number of iovec structures per " 540 "process"), 541 NULL, IOV_MAX, NULL, 0, 542 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 543 sysctl_createv(clog, 0, NULL, NULL, 544 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 545 CTLTYPE_INT, "mapped_files", 546 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 547 "Files Option is available on this system"), 548 NULL, 1, NULL, 0, 549 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 550 sysctl_createv(clog, 0, NULL, NULL, 551 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 552 CTLTYPE_INT, "memlock", 553 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 554 "Locking Option is available on this " 555 "system"), 556 NULL, 1, NULL, 0, 557 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 558 sysctl_createv(clog, 0, NULL, NULL, 559 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 560 CTLTYPE_INT, "memlock_range", 561 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 562 "Locking Option is available on this " 563 "system"), 564 NULL, 1, NULL, 0, 565 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 566 sysctl_createv(clog, 0, NULL, NULL, 567 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 568 CTLTYPE_INT, "memory_protection", 569 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 570 "Protection Option is available on this " 571 "system"), 572 NULL, 1, NULL, 0, 573 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 574 sysctl_createv(clog, 0, NULL, NULL, 575 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 576 CTLTYPE_INT, "login_name_max", 577 SYSCTL_DESCR("Maximum login name length"), 578 NULL, LOGIN_NAME_MAX, NULL, 0, 579 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 580 sysctl_createv(clog, 0, NULL, NULL, 581 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 582 CTLTYPE_STRING, "defcorename", 583 SYSCTL_DESCR("Default core file name"), 584 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 585 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 586 sysctl_createv(clog, 0, NULL, NULL, 587 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 588 CTLTYPE_INT, "logsigexit", 589 SYSCTL_DESCR("Log process exit when caused by signals"), 590 NULL, 0, &kern_logsigexit, 0, 591 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 592 sysctl_createv(clog, 0, NULL, NULL, 593 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 594 CTLTYPE_INT, "fscale", 595 SYSCTL_DESCR("Kernel fixed-point scale factor"), 596 NULL, FSCALE, NULL, 0, 597 CTL_KERN, KERN_FSCALE, CTL_EOL); 598 sysctl_createv(clog, 0, NULL, NULL, 599 CTLFLAG_PERMANENT, 600 CTLTYPE_INT, "ccpu", 601 SYSCTL_DESCR("Scheduler exponential decay value"), 602 NULL, 0, &ccpu, 0, 603 CTL_KERN, KERN_CCPU, CTL_EOL); 604 sysctl_createv(clog, 0, NULL, NULL, 605 CTLFLAG_PERMANENT, 606 CTLTYPE_STRUCT, "cp_time", 607 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 608 sysctl_kern_cptime, 0, NULL, 0, 609 CTL_KERN, KERN_CP_TIME, CTL_EOL); 610 sysctl_createv(clog, 0, NULL, NULL, 611 CTLFLAG_PERMANENT, 612 CTLTYPE_INT, "msgbuf", 613 SYSCTL_DESCR("Kernel message buffer"), 614 sysctl_msgbuf, 0, NULL, 0, 615 CTL_KERN, KERN_MSGBUF, CTL_EOL); 616 sysctl_createv(clog, 0, NULL, NULL, 617 CTLFLAG_PERMANENT, 618 CTLTYPE_STRUCT, "consdev", 619 SYSCTL_DESCR("Console device"), 620 sysctl_consdev, 0, NULL, sizeof(dev_t), 621 CTL_KERN, KERN_CONSDEV, CTL_EOL); 622 #if NPTY > 0 623 sysctl_createv(clog, 0, NULL, NULL, 624 CTLFLAG_PERMANENT, 625 CTLTYPE_INT, "maxptys", 626 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 627 sysctl_kern_maxptys, 0, NULL, 0, 628 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 629 #endif /* NPTY > 0 */ 630 sysctl_createv(clog, 0, NULL, NULL, 631 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 632 CTLTYPE_INT, "maxphys", 633 SYSCTL_DESCR("Maximum raw I/O transfer size"), 634 NULL, MAXPHYS, NULL, 0, 635 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 636 sysctl_createv(clog, 0, NULL, NULL, 637 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 638 CTLTYPE_INT, "sbmax", 639 SYSCTL_DESCR("Maximum socket buffer size"), 640 sysctl_kern_sbmax, 0, NULL, 0, 641 CTL_KERN, KERN_SBMAX, CTL_EOL); 642 sysctl_createv(clog, 0, NULL, NULL, 643 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 644 CTLTYPE_INT, "monotonic_clock", 645 SYSCTL_DESCR("Implementation version of the POSIX " 646 "1003.1b Monotonic Clock Option"), 647 /* XXX _POSIX_VERSION */ 648 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 649 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 650 sysctl_createv(clog, 0, NULL, NULL, 651 CTLFLAG_PERMANENT, 652 CTLTYPE_INT, "urandom", 653 SYSCTL_DESCR("Random integer value"), 654 sysctl_kern_urnd, 0, NULL, 0, 655 CTL_KERN, KERN_URND, CTL_EOL); 656 sysctl_createv(clog, 0, NULL, NULL, 657 CTLFLAG_PERMANENT, 658 CTLTYPE_INT, "arandom", 659 SYSCTL_DESCR("n bytes of random data"), 660 sysctl_kern_arnd, 0, NULL, 0, 661 CTL_KERN, KERN_ARND, CTL_EOL); 662 sysctl_createv(clog, 0, NULL, NULL, 663 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 664 CTLTYPE_INT, "labelsector", 665 SYSCTL_DESCR("Sector number containing the disklabel"), 666 NULL, LABELSECTOR, NULL, 0, 667 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 668 sysctl_createv(clog, 0, NULL, NULL, 669 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 670 CTLTYPE_INT, "labeloffset", 671 SYSCTL_DESCR("Offset of the disklabel within the " 672 "sector"), 673 NULL, LABELOFFSET, NULL, 0, 674 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 675 sysctl_createv(clog, 0, NULL, NULL, 676 CTLFLAG_PERMANENT, 677 CTLTYPE_NODE, "lwp", 678 SYSCTL_DESCR("System-wide LWP information"), 679 sysctl_kern_lwp, 0, NULL, 0, 680 CTL_KERN, KERN_LWP, CTL_EOL); 681 sysctl_createv(clog, 0, NULL, NULL, 682 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 683 CTLTYPE_INT, "forkfsleep", 684 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 685 "to process limits"), 686 sysctl_kern_forkfsleep, 0, NULL, 0, 687 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 688 sysctl_createv(clog, 0, NULL, NULL, 689 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 690 CTLTYPE_INT, "posix_threads", 691 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 692 "Threads option to which the system " 693 "attempts to conform"), 694 /* XXX _POSIX_VERSION */ 695 NULL, _POSIX_THREADS, NULL, 0, 696 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 697 sysctl_createv(clog, 0, NULL, NULL, 698 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 699 CTLTYPE_INT, "posix_semaphores", 700 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 701 "Semaphores option to which the system " 702 "attempts to conform"), NULL, 703 #ifdef P1003_1B_SEMAPHORE 704 200112, 705 #else /* P1003_1B_SEMAPHORE */ 706 0, 707 #endif /* P1003_1B_SEMAPHORE */ 708 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 709 sysctl_createv(clog, 0, NULL, NULL, 710 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 711 CTLTYPE_INT, "posix_barriers", 712 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 713 "Barriers option to which the system " 714 "attempts to conform"), 715 /* XXX _POSIX_VERSION */ 716 NULL, _POSIX_BARRIERS, NULL, 0, 717 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 718 sysctl_createv(clog, 0, NULL, NULL, 719 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 720 CTLTYPE_INT, "posix_timers", 721 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 722 "Timers option to which the system " 723 "attempts to conform"), 724 /* XXX _POSIX_VERSION */ 725 NULL, _POSIX_TIMERS, NULL, 0, 726 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 727 sysctl_createv(clog, 0, NULL, NULL, 728 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 729 CTLTYPE_INT, "posix_spin_locks", 730 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 731 "Locks option to which the system attempts " 732 "to conform"), 733 /* XXX _POSIX_VERSION */ 734 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 735 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 736 sysctl_createv(clog, 0, NULL, NULL, 737 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 738 CTLTYPE_INT, "posix_reader_writer_locks", 739 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 740 "Read-Write Locks option to which the " 741 "system attempts to conform"), 742 /* XXX _POSIX_VERSION */ 743 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 744 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 745 sysctl_createv(clog, 0, NULL, NULL, 746 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 747 CTLTYPE_INT, "dump_on_panic", 748 SYSCTL_DESCR("Perform a crash dump on system panic"), 749 NULL, 0, &dumponpanic, 0, 750 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 751 #ifdef DIAGNOSTIC 752 sysctl_createv(clog, 0, NULL, NULL, 753 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 754 CTLTYPE_INT, "panic_now", 755 SYSCTL_DESCR("Trigger a panic"), 756 sysctl_kern_trigger_panic, 0, NULL, 0, 757 CTL_KERN, CTL_CREATE, CTL_EOL); 758 #endif 759 sysctl_createv(clog, 0, NULL, NULL, 760 CTLFLAG_PERMANENT, 761 CTLTYPE_INT, "root_partition", 762 SYSCTL_DESCR("Root partition on the root device"), 763 sysctl_kern_root_partition, 0, NULL, 0, 764 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 765 sysctl_createv(clog, 0, NULL, NULL, 766 CTLFLAG_PERMANENT, 767 CTLTYPE_STRUCT, "drivers", 768 SYSCTL_DESCR("List of all drivers with block and " 769 "character device numbers"), 770 sysctl_kern_drivers, 0, NULL, 0, 771 CTL_KERN, KERN_DRIVERS, CTL_EOL); 772 sysctl_createv(clog, 0, NULL, NULL, 773 CTLFLAG_PERMANENT, 774 CTLTYPE_STRUCT, "file2", 775 SYSCTL_DESCR("System open file table"), 776 sysctl_kern_file2, 0, NULL, 0, 777 CTL_KERN, KERN_FILE2, CTL_EOL); 778 sysctl_createv(clog, 0, NULL, NULL, 779 CTLFLAG_PERMANENT, 780 CTLTYPE_STRUCT, "cp_id", 781 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 782 sysctl_kern_cpid, 0, NULL, 0, 783 CTL_KERN, KERN_CP_ID, CTL_EOL); 784 sysctl_createv(clog, 0, NULL, &rnode, 785 CTLFLAG_PERMANENT, 786 CTLTYPE_NODE, "coredump", 787 SYSCTL_DESCR("Coredump settings."), 788 NULL, 0, NULL, 0, 789 CTL_KERN, CTL_CREATE, CTL_EOL); 790 sysctl_createv(clog, 0, &rnode, &rnode, 791 CTLFLAG_PERMANENT, 792 CTLTYPE_NODE, "setid", 793 SYSCTL_DESCR("Set-id processes' coredump settings."), 794 NULL, 0, NULL, 0, 795 CTL_CREATE, CTL_EOL); 796 sysctl_createv(clog, 0, &rnode, NULL, 797 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 798 CTLTYPE_INT, "dump", 799 SYSCTL_DESCR("Allow set-id processes to dump core."), 800 sysctl_security_setidcore, 0, &security_setidcore_dump, 801 sizeof(security_setidcore_dump), 802 CTL_CREATE, CTL_EOL); 803 sysctl_createv(clog, 0, &rnode, NULL, 804 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 805 CTLTYPE_STRING, "path", 806 SYSCTL_DESCR("Path pattern for set-id coredumps."), 807 sysctl_security_setidcorename, 0, 808 &security_setidcore_path, 809 sizeof(security_setidcore_path), 810 CTL_CREATE, CTL_EOL); 811 sysctl_createv(clog, 0, &rnode, NULL, 812 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 813 CTLTYPE_INT, "owner", 814 SYSCTL_DESCR("Owner id for set-id processes' cores."), 815 sysctl_security_setidcore, 0, &security_setidcore_owner, 816 0, 817 CTL_CREATE, CTL_EOL); 818 sysctl_createv(clog, 0, &rnode, NULL, 819 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 820 CTLTYPE_INT, "group", 821 SYSCTL_DESCR("Group id for set-id processes' cores."), 822 sysctl_security_setidcore, 0, &security_setidcore_group, 823 0, 824 CTL_CREATE, CTL_EOL); 825 sysctl_createv(clog, 0, &rnode, NULL, 826 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 827 CTLTYPE_INT, "mode", 828 SYSCTL_DESCR("Mode for set-id processes' cores."), 829 sysctl_security_setidcore, 0, &security_setidcore_mode, 830 0, 831 CTL_CREATE, CTL_EOL); 832 sysctl_createv(clog, 0, NULL, NULL, 833 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 834 CTLTYPE_INT, "no_sa_support", 835 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"), 836 NULL, 1, NULL, 0, 837 CTL_KERN, CTL_CREATE, CTL_EOL); 838 } 839 840 SYSCTL_SETUP(sysctl_kern_proc_setup, 841 "sysctl kern.proc/proc2/proc_args subtree setup") 842 { 843 844 sysctl_createv(clog, 0, NULL, NULL, 845 CTLFLAG_PERMANENT, 846 CTLTYPE_NODE, "kern", NULL, 847 NULL, 0, NULL, 0, 848 CTL_KERN, CTL_EOL); 849 850 sysctl_createv(clog, 0, NULL, NULL, 851 CTLFLAG_PERMANENT, 852 CTLTYPE_NODE, "proc", 853 SYSCTL_DESCR("System-wide process information"), 854 sysctl_doeproc, 0, NULL, 0, 855 CTL_KERN, KERN_PROC, CTL_EOL); 856 sysctl_createv(clog, 0, NULL, NULL, 857 CTLFLAG_PERMANENT, 858 CTLTYPE_NODE, "proc2", 859 SYSCTL_DESCR("Machine-independent process information"), 860 sysctl_doeproc, 0, NULL, 0, 861 CTL_KERN, KERN_PROC2, CTL_EOL); 862 sysctl_createv(clog, 0, NULL, NULL, 863 CTLFLAG_PERMANENT, 864 CTLTYPE_NODE, "proc_args", 865 SYSCTL_DESCR("Process argument information"), 866 sysctl_kern_proc_args, 0, NULL, 0, 867 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 868 869 /* 870 "nodes" under these: 871 872 KERN_PROC_ALL 873 KERN_PROC_PID pid 874 KERN_PROC_PGRP pgrp 875 KERN_PROC_SESSION sess 876 KERN_PROC_TTY tty 877 KERN_PROC_UID uid 878 KERN_PROC_RUID uid 879 KERN_PROC_GID gid 880 KERN_PROC_RGID gid 881 882 all in all, probably not worth the effort... 883 */ 884 } 885 886 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 887 { 888 u_int u; 889 u_quad_t q; 890 891 sysctl_createv(clog, 0, NULL, NULL, 892 CTLFLAG_PERMANENT, 893 CTLTYPE_NODE, "hw", NULL, 894 NULL, 0, NULL, 0, 895 CTL_HW, CTL_EOL); 896 897 sysctl_createv(clog, 0, NULL, NULL, 898 CTLFLAG_PERMANENT, 899 CTLTYPE_STRING, "machine", 900 SYSCTL_DESCR("Machine class"), 901 NULL, 0, machine, 0, 902 CTL_HW, HW_MACHINE, CTL_EOL); 903 sysctl_createv(clog, 0, NULL, NULL, 904 CTLFLAG_PERMANENT, 905 CTLTYPE_STRING, "model", 906 SYSCTL_DESCR("Machine model"), 907 NULL, 0, cpu_model, 0, 908 CTL_HW, HW_MODEL, CTL_EOL); 909 sysctl_createv(clog, 0, NULL, NULL, 910 CTLFLAG_PERMANENT, 911 CTLTYPE_INT, "ncpu", 912 SYSCTL_DESCR("Number of CPUs configured"), 913 NULL, 0, &ncpu, 0, 914 CTL_HW, HW_NCPU, CTL_EOL); 915 sysctl_createv(clog, 0, NULL, NULL, 916 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 917 CTLTYPE_INT, "byteorder", 918 SYSCTL_DESCR("System byte order"), 919 NULL, BYTE_ORDER, NULL, 0, 920 CTL_HW, HW_BYTEORDER, CTL_EOL); 921 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 922 UINT_MAX : physmem * PAGE_SIZE; 923 sysctl_createv(clog, 0, NULL, NULL, 924 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 925 CTLTYPE_INT, "physmem", 926 SYSCTL_DESCR("Bytes of physical memory"), 927 NULL, u, NULL, 0, 928 CTL_HW, HW_PHYSMEM, CTL_EOL); 929 sysctl_createv(clog, 0, NULL, NULL, 930 CTLFLAG_PERMANENT, 931 CTLTYPE_INT, "usermem", 932 SYSCTL_DESCR("Bytes of non-kernel memory"), 933 sysctl_hw_usermem, 0, NULL, 0, 934 CTL_HW, HW_USERMEM, CTL_EOL); 935 sysctl_createv(clog, 0, NULL, NULL, 936 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 937 CTLTYPE_INT, "pagesize", 938 SYSCTL_DESCR("Software page size"), 939 NULL, PAGE_SIZE, NULL, 0, 940 CTL_HW, HW_PAGESIZE, CTL_EOL); 941 sysctl_createv(clog, 0, NULL, NULL, 942 CTLFLAG_PERMANENT, 943 CTLTYPE_STRING, "machine_arch", 944 SYSCTL_DESCR("Machine CPU class"), 945 NULL, 0, machine_arch, 0, 946 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 947 sysctl_createv(clog, 0, NULL, NULL, 948 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 949 CTLTYPE_INT, "alignbytes", 950 SYSCTL_DESCR("Alignment constraint for all possible " 951 "data types"), 952 NULL, ALIGNBYTES, NULL, 0, 953 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 954 sysctl_createv(clog, 0, NULL, NULL, 955 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 956 CTLTYPE_STRING, "cnmagic", 957 SYSCTL_DESCR("Console magic key sequence"), 958 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 959 CTL_HW, HW_CNMAGIC, CTL_EOL); 960 q = (u_quad_t)physmem * PAGE_SIZE; 961 sysctl_createv(clog, 0, NULL, NULL, 962 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 963 CTLTYPE_QUAD, "physmem64", 964 SYSCTL_DESCR("Bytes of physical memory"), 965 NULL, q, NULL, 0, 966 CTL_HW, HW_PHYSMEM64, CTL_EOL); 967 sysctl_createv(clog, 0, NULL, NULL, 968 CTLFLAG_PERMANENT, 969 CTLTYPE_QUAD, "usermem64", 970 SYSCTL_DESCR("Bytes of non-kernel memory"), 971 sysctl_hw_usermem, 0, NULL, 0, 972 CTL_HW, HW_USERMEM64, CTL_EOL); 973 sysctl_createv(clog, 0, NULL, NULL, 974 CTLFLAG_PERMANENT, 975 CTLTYPE_INT, "ncpuonline", 976 SYSCTL_DESCR("Number of CPUs online"), 977 NULL, 0, &ncpuonline, 0, 978 CTL_HW, HW_NCPUONLINE, CTL_EOL); 979 } 980 981 #ifdef DEBUG 982 /* 983 * Debugging related system variables. 984 */ 985 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 986 struct ctldebug debug5, debug6, debug7, debug8, debug9; 987 struct ctldebug debug10, debug11, debug12, debug13, debug14; 988 struct ctldebug debug15, debug16, debug17, debug18, debug19; 989 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 990 &debug0, &debug1, &debug2, &debug3, &debug4, 991 &debug5, &debug6, &debug7, &debug8, &debug9, 992 &debug10, &debug11, &debug12, &debug13, &debug14, 993 &debug15, &debug16, &debug17, &debug18, &debug19, 994 }; 995 996 /* 997 * this setup routine is a replacement for debug_sysctl() 998 * 999 * note that it creates several nodes per defined debug variable 1000 */ 1001 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1002 { 1003 struct ctldebug *cdp; 1004 char nodename[20]; 1005 int i; 1006 1007 /* 1008 * two ways here: 1009 * 1010 * the "old" way (debug.name -> value) which was emulated by 1011 * the sysctl(8) binary 1012 * 1013 * the new way, which the sysctl(8) binary was actually using 1014 1015 node debug 1016 node debug.0 1017 string debug.0.name 1018 int debug.0.value 1019 int debug.name 1020 1021 */ 1022 1023 sysctl_createv(clog, 0, NULL, NULL, 1024 CTLFLAG_PERMANENT, 1025 CTLTYPE_NODE, "debug", NULL, 1026 NULL, 0, NULL, 0, 1027 CTL_DEBUG, CTL_EOL); 1028 1029 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1030 cdp = debugvars[i]; 1031 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1032 continue; 1033 1034 snprintf(nodename, sizeof(nodename), "debug%d", i); 1035 sysctl_createv(clog, 0, NULL, NULL, 1036 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1037 CTLTYPE_NODE, nodename, NULL, 1038 NULL, 0, NULL, 0, 1039 CTL_DEBUG, i, CTL_EOL); 1040 sysctl_createv(clog, 0, NULL, NULL, 1041 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1042 CTLTYPE_STRING, "name", NULL, 1043 /*XXXUNCONST*/ 1044 NULL, 0, __UNCONST(cdp->debugname), 0, 1045 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1046 sysctl_createv(clog, 0, NULL, NULL, 1047 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1048 CTLTYPE_INT, "value", NULL, 1049 NULL, 0, cdp->debugvar, 0, 1050 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1051 sysctl_createv(clog, 0, NULL, NULL, 1052 CTLFLAG_PERMANENT, 1053 CTLTYPE_INT, cdp->debugname, NULL, 1054 NULL, 0, cdp->debugvar, 0, 1055 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1056 } 1057 } 1058 #endif /* DEBUG */ 1059 1060 /* 1061 * ******************************************************************** 1062 * section 2: private node-specific helper routines. 1063 * ******************************************************************** 1064 */ 1065 1066 #ifdef DIAGNOSTIC 1067 static int 1068 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1069 { 1070 int newtrig, error; 1071 struct sysctlnode node; 1072 1073 newtrig = 0; 1074 node = *rnode; 1075 node.sysctl_data = &newtrig; 1076 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1077 if (error || newp == NULL) 1078 return (error); 1079 1080 if (newtrig != 0) 1081 panic("Panic triggered"); 1082 1083 return (error); 1084 } 1085 #endif 1086 1087 /* 1088 * sysctl helper routine for kern.maxvnodes. Drain vnodes if 1089 * new value is lower than desiredvnodes and then calls reinit 1090 * routines that needs to adjust to the new value. 1091 */ 1092 static int 1093 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1094 { 1095 int error, new_vnodes, old_vnodes; 1096 struct sysctlnode node; 1097 1098 new_vnodes = desiredvnodes; 1099 node = *rnode; 1100 node.sysctl_data = &new_vnodes; 1101 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1102 if (error || newp == NULL) 1103 return (error); 1104 1105 old_vnodes = desiredvnodes; 1106 desiredvnodes = new_vnodes; 1107 if (new_vnodes < old_vnodes) { 1108 error = vfs_drainvnodes(new_vnodes, l); 1109 if (error) { 1110 desiredvnodes = old_vnodes; 1111 return (error); 1112 } 1113 } 1114 vfs_reinit(); 1115 nchreinit(); 1116 1117 return (0); 1118 } 1119 1120 /* 1121 * sysctl helper routine for rtc_offset - set time after changes 1122 */ 1123 static int 1124 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1125 { 1126 struct timespec ts, delta; 1127 int error, new_rtc_offset; 1128 struct sysctlnode node; 1129 1130 new_rtc_offset = rtc_offset; 1131 node = *rnode; 1132 node.sysctl_data = &new_rtc_offset; 1133 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1134 if (error || newp == NULL) 1135 return (error); 1136 1137 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1138 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1139 KAUTH_ARG(new_rtc_offset), NULL, NULL)) 1140 return (EPERM); 1141 if (rtc_offset == new_rtc_offset) 1142 return (0); 1143 1144 /* if we change the offset, adjust the time */ 1145 nanotime(&ts); 1146 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1147 delta.tv_nsec = 0; 1148 timespecadd(&ts, &delta, &ts); 1149 rtc_offset = new_rtc_offset; 1150 return (settime(l->l_proc, &ts)); 1151 } 1152 1153 /* 1154 * sysctl helper routine for kern.maxproc. Ensures that the new 1155 * values are not too low or too high. 1156 */ 1157 static int 1158 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1159 { 1160 int error, nmaxproc; 1161 struct sysctlnode node; 1162 1163 nmaxproc = maxproc; 1164 node = *rnode; 1165 node.sysctl_data = &nmaxproc; 1166 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1167 if (error || newp == NULL) 1168 return (error); 1169 1170 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1171 return (EINVAL); 1172 #ifdef __HAVE_CPU_MAXPROC 1173 if (nmaxproc > cpu_maxproc()) 1174 return (EINVAL); 1175 #endif 1176 maxproc = nmaxproc; 1177 1178 return (0); 1179 } 1180 1181 /* 1182 * sysctl helper function for kern.hostid. The hostid is a long, but 1183 * we export it as an int, so we need to give it a little help. 1184 */ 1185 static int 1186 sysctl_kern_hostid(SYSCTLFN_ARGS) 1187 { 1188 int error, inthostid; 1189 struct sysctlnode node; 1190 1191 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1192 node = *rnode; 1193 node.sysctl_data = &inthostid; 1194 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1195 if (error || newp == NULL) 1196 return (error); 1197 1198 hostid = (unsigned)inthostid; 1199 1200 return (0); 1201 } 1202 1203 /* 1204 * sysctl helper function for kern.hostname and kern.domainnname. 1205 * resets the relevant recorded length when the underlying name is 1206 * changed. 1207 */ 1208 static int 1209 sysctl_setlen(SYSCTLFN_ARGS) 1210 { 1211 int error; 1212 1213 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1214 if (error || newp == NULL) 1215 return (error); 1216 1217 switch (rnode->sysctl_num) { 1218 case KERN_HOSTNAME: 1219 hostnamelen = strlen((const char*)rnode->sysctl_data); 1220 break; 1221 case KERN_DOMAINNAME: 1222 domainnamelen = strlen((const char*)rnode->sysctl_data); 1223 break; 1224 } 1225 1226 return (0); 1227 } 1228 1229 /* 1230 * sysctl helper routine for kern.clockrate. Assembles a struct on 1231 * the fly to be returned to the caller. 1232 */ 1233 static int 1234 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1235 { 1236 struct clockinfo clkinfo; 1237 struct sysctlnode node; 1238 1239 clkinfo.tick = tick; 1240 clkinfo.tickadj = tickadj; 1241 clkinfo.hz = hz; 1242 clkinfo.profhz = profhz; 1243 clkinfo.stathz = stathz ? stathz : hz; 1244 1245 node = *rnode; 1246 node.sysctl_data = &clkinfo; 1247 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1248 } 1249 1250 1251 /* 1252 * sysctl helper routine for kern.file pseudo-subtree. 1253 */ 1254 static int 1255 sysctl_kern_file(SYSCTLFN_ARGS) 1256 { 1257 int error; 1258 size_t buflen; 1259 struct file *fp, *dp, *np, fbuf; 1260 char *start, *where; 1261 1262 start = where = oldp; 1263 buflen = *oldlenp; 1264 dp = NULL; 1265 1266 if (where == NULL) { 1267 /* 1268 * overestimate by 10 files 1269 */ 1270 *oldlenp = sizeof(filehead) + (nfiles + 10) * 1271 sizeof(struct file); 1272 return (0); 1273 } 1274 1275 /* 1276 * first dcopyout filehead 1277 */ 1278 if (buflen < sizeof(filehead)) { 1279 *oldlenp = 0; 1280 return (0); 1281 } 1282 sysctl_unlock(); 1283 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1284 if (error) { 1285 sysctl_relock(); 1286 return error; 1287 } 1288 buflen -= sizeof(filehead); 1289 where += sizeof(filehead); 1290 1291 /* 1292 * allocate dummy file descriptor to make position in list 1293 */ 1294 if ((dp = fgetdummy()) == NULL) { 1295 sysctl_relock(); 1296 return ENOMEM; 1297 } 1298 1299 /* 1300 * followed by an array of file structures 1301 */ 1302 mutex_enter(&filelist_lock); 1303 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1304 np = LIST_NEXT(fp, f_list); 1305 mutex_enter(&fp->f_lock); 1306 if (fp->f_count == 0) { 1307 mutex_exit(&fp->f_lock); 1308 continue; 1309 } 1310 /* 1311 * XXX Need to prevent that from being an alternative way 1312 * XXX to getting process information. 1313 */ 1314 if (kauth_authorize_generic(l->l_cred, 1315 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1316 mutex_exit(&fp->f_lock); 1317 continue; 1318 } 1319 if (buflen < sizeof(struct file)) { 1320 *oldlenp = where - start; 1321 mutex_exit(&fp->f_lock); 1322 error = ENOMEM; 1323 break; 1324 } 1325 memcpy(&fbuf, fp, sizeof(fbuf)); 1326 LIST_INSERT_AFTER(fp, dp, f_list); 1327 mutex_exit(&fp->f_lock); 1328 mutex_exit(&filelist_lock); 1329 error = dcopyout(l, &fbuf, where, sizeof(fbuf)); 1330 if (error) { 1331 mutex_enter(&filelist_lock); 1332 LIST_REMOVE(dp, f_list); 1333 break; 1334 } 1335 buflen -= sizeof(struct file); 1336 where += sizeof(struct file); 1337 mutex_enter(&filelist_lock); 1338 np = LIST_NEXT(dp, f_list); 1339 LIST_REMOVE(dp, f_list); 1340 } 1341 mutex_exit(&filelist_lock); 1342 *oldlenp = where - start; 1343 if (dp != NULL) 1344 fputdummy(dp); 1345 sysctl_relock(); 1346 return (error); 1347 } 1348 1349 /* 1350 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 1351 * former it merely checks the message buffer is set up. For the latter, 1352 * it also copies out the data if necessary. 1353 */ 1354 static int 1355 sysctl_msgbuf(SYSCTLFN_ARGS) 1356 { 1357 char *where = oldp; 1358 size_t len, maxlen; 1359 long beg, end; 1360 extern kmutex_t log_lock; 1361 int error; 1362 1363 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1364 msgbufenabled = 0; 1365 return (ENXIO); 1366 } 1367 1368 switch (rnode->sysctl_num) { 1369 case KERN_MSGBUFSIZE: { 1370 struct sysctlnode node = *rnode; 1371 int msg_bufs = (int)msgbufp->msg_bufs; 1372 node.sysctl_data = &msg_bufs; 1373 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1374 } 1375 case KERN_MSGBUF: 1376 break; 1377 default: 1378 return (EOPNOTSUPP); 1379 } 1380 1381 if (newp != NULL) 1382 return (EPERM); 1383 1384 if (oldp == NULL) { 1385 /* always return full buffer size */ 1386 *oldlenp = msgbufp->msg_bufs; 1387 return (0); 1388 } 1389 1390 sysctl_unlock(); 1391 1392 /* 1393 * First, copy from the write pointer to the end of 1394 * message buffer. 1395 */ 1396 error = 0; 1397 mutex_spin_enter(&log_lock); 1398 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1399 beg = msgbufp->msg_bufx; 1400 end = msgbufp->msg_bufs; 1401 mutex_spin_exit(&log_lock); 1402 1403 while (maxlen > 0) { 1404 len = MIN(end - beg, maxlen); 1405 if (len == 0) 1406 break; 1407 /* XXX unlocked, but hardly matters. */ 1408 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1409 if (error) 1410 break; 1411 where += len; 1412 maxlen -= len; 1413 1414 /* 1415 * ... then, copy from the beginning of message buffer to 1416 * the write pointer. 1417 */ 1418 beg = 0; 1419 end = msgbufp->msg_bufx; 1420 } 1421 1422 sysctl_relock(); 1423 return (error); 1424 } 1425 1426 /* 1427 * sysctl helper routine for kern.defcorename. In the case of a new 1428 * string being assigned, check that it's not a zero-length string. 1429 * (XXX the check in -current doesn't work, but do we really care?) 1430 */ 1431 static int 1432 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1433 { 1434 int error; 1435 char *newcorename; 1436 struct sysctlnode node; 1437 1438 newcorename = PNBUF_GET(); 1439 node = *rnode; 1440 node.sysctl_data = &newcorename[0]; 1441 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1442 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1443 if (error || newp == NULL) { 1444 goto done; 1445 } 1446 1447 /* 1448 * when sysctl_lookup() deals with a string, it's guaranteed 1449 * to come back nul terminated. So there. :) 1450 */ 1451 if (strlen(newcorename) == 0) { 1452 error = EINVAL; 1453 } else { 1454 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1455 error = 0; 1456 } 1457 done: 1458 PNBUF_PUT(newcorename); 1459 return error; 1460 } 1461 1462 /* 1463 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1464 * across all cpus. 1465 */ 1466 static int 1467 sysctl_kern_cptime(SYSCTLFN_ARGS) 1468 { 1469 struct sysctlnode node = *rnode; 1470 uint64_t *cp_time = NULL; 1471 int error, n = ncpu, i; 1472 struct cpu_info *ci; 1473 CPU_INFO_ITERATOR cii; 1474 1475 /* 1476 * if you specifically pass a buffer that is the size of the 1477 * sum, or if you are probing for the size, you get the "sum" 1478 * of cp_time (and the size thereof) across all processors. 1479 * 1480 * alternately, you can pass an additional mib number and get 1481 * cp_time for that particular processor. 1482 */ 1483 switch (namelen) { 1484 case 0: 1485 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1486 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1487 n = -1; /* SUM */ 1488 } 1489 else { 1490 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1491 n = -2; /* ALL */ 1492 } 1493 break; 1494 case 1: 1495 if (name[0] < 0 || name[0] >= n) 1496 return (ENOENT); /* ENOSUCHPROCESSOR */ 1497 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1498 n = name[0]; 1499 /* 1500 * adjust these so that sysctl_lookup() will be happy 1501 */ 1502 name++; 1503 namelen--; 1504 break; 1505 default: 1506 return (EINVAL); 1507 } 1508 1509 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); 1510 if (cp_time == NULL) 1511 return (ENOMEM); 1512 node.sysctl_data = cp_time; 1513 memset(cp_time, 0, node.sysctl_size); 1514 1515 for (CPU_INFO_FOREACH(cii, ci)) { 1516 if (n <= 0) { 1517 for (i = 0; i < CPUSTATES; i++) { 1518 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1519 } 1520 } 1521 /* 1522 * if a specific processor was requested and we just 1523 * did it, we're done here 1524 */ 1525 if (n == 0) 1526 break; 1527 /* 1528 * if doing "all", skip to next cp_time set for next processor 1529 */ 1530 if (n == -2) 1531 cp_time += CPUSTATES; 1532 /* 1533 * if we're doing a specific processor, we're one 1534 * processor closer 1535 */ 1536 if (n > 0) 1537 n--; 1538 } 1539 1540 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1541 kmem_free(node.sysctl_data, node.sysctl_size); 1542 return (error); 1543 } 1544 1545 #if NPTY > 0 1546 /* 1547 * sysctl helper routine for kern.maxptys. Ensures that any new value 1548 * is acceptable to the pty subsystem. 1549 */ 1550 static int 1551 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1552 { 1553 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1554 int error, xmax; 1555 struct sysctlnode node; 1556 1557 /* get current value of maxptys */ 1558 xmax = pty_maxptys(0, 0); 1559 1560 node = *rnode; 1561 node.sysctl_data = &xmax; 1562 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1563 if (error || newp == NULL) 1564 return (error); 1565 1566 if (xmax != pty_maxptys(xmax, 1)) 1567 return (EINVAL); 1568 1569 return (0); 1570 } 1571 #endif /* NPTY > 0 */ 1572 1573 /* 1574 * sysctl helper routine for kern.sbmax. Basically just ensures that 1575 * any new value is not too small. 1576 */ 1577 static int 1578 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1579 { 1580 int error, new_sbmax; 1581 struct sysctlnode node; 1582 1583 new_sbmax = sb_max; 1584 node = *rnode; 1585 node.sysctl_data = &new_sbmax; 1586 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1587 if (error || newp == NULL) 1588 return (error); 1589 1590 KERNEL_LOCK(1, NULL); 1591 error = sb_max_set(new_sbmax); 1592 KERNEL_UNLOCK_ONE(NULL); 1593 1594 return (error); 1595 } 1596 1597 /* 1598 * sysctl helper routine for kern.urandom node. Picks a random number 1599 * for you. 1600 */ 1601 static int 1602 sysctl_kern_urnd(SYSCTLFN_ARGS) 1603 { 1604 #if NRND > 0 1605 int v, rv; 1606 1607 KERNEL_LOCK(1, NULL); 1608 rv = rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY); 1609 KERNEL_UNLOCK_ONE(NULL); 1610 if (rv == sizeof(v)) { 1611 struct sysctlnode node = *rnode; 1612 node.sysctl_data = &v; 1613 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1614 } 1615 else 1616 return (EIO); /*XXX*/ 1617 #else 1618 return (EOPNOTSUPP); 1619 #endif 1620 } 1621 1622 /* 1623 * sysctl helper routine for kern.arandom node. Picks a random number 1624 * for you. 1625 */ 1626 static int 1627 sysctl_kern_arnd(SYSCTLFN_ARGS) 1628 { 1629 #if NRND > 0 1630 int error; 1631 void *v; 1632 struct sysctlnode node = *rnode; 1633 1634 if (*oldlenp == 0) 1635 return 0; 1636 if (*oldlenp > 8192) 1637 return E2BIG; 1638 1639 v = kmem_alloc(*oldlenp, KM_SLEEP); 1640 arc4randbytes(v, *oldlenp); 1641 node.sysctl_data = v; 1642 node.sysctl_size = *oldlenp; 1643 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1644 kmem_free(v, *oldlenp); 1645 return error; 1646 #else 1647 return (EOPNOTSUPP); 1648 #endif 1649 } 1650 /* 1651 * sysctl helper routine to do kern.lwp.* work. 1652 */ 1653 static int 1654 sysctl_kern_lwp(SYSCTLFN_ARGS) 1655 { 1656 struct kinfo_lwp klwp; 1657 struct proc *p; 1658 struct lwp *l2, *l3; 1659 char *where, *dp; 1660 int pid, elem_size, elem_count; 1661 int buflen, needed, error; 1662 bool gotit; 1663 1664 if (namelen == 1 && name[0] == CTL_QUERY) 1665 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1666 1667 dp = where = oldp; 1668 buflen = where != NULL ? *oldlenp : 0; 1669 error = needed = 0; 1670 1671 if (newp != NULL || namelen != 3) 1672 return (EINVAL); 1673 pid = name[0]; 1674 elem_size = name[1]; 1675 elem_count = name[2]; 1676 1677 sysctl_unlock(); 1678 if (pid == -1) { 1679 mutex_enter(proc_lock); 1680 LIST_FOREACH(p, &allproc, p_list) { 1681 /* Grab a hold on the process. */ 1682 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 1683 continue; 1684 } 1685 mutex_exit(proc_lock); 1686 1687 mutex_enter(p->p_lock); 1688 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1689 if (buflen >= elem_size && elem_count > 0) { 1690 lwp_lock(l2); 1691 fill_lwp(l2, &klwp); 1692 lwp_unlock(l2); 1693 mutex_exit(p->p_lock); 1694 1695 /* 1696 * Copy out elem_size, but not 1697 * larger than the size of a 1698 * struct kinfo_proc2. 1699 */ 1700 error = dcopyout(l, &klwp, dp, 1701 min(sizeof(klwp), elem_size)); 1702 if (error) { 1703 rw_exit(&p->p_reflock); 1704 goto cleanup; 1705 } 1706 mutex_enter(p->p_lock); 1707 LIST_FOREACH(l3, &p->p_lwps, 1708 l_sibling) { 1709 if (l2 == l3) 1710 break; 1711 } 1712 if (l3 == NULL) { 1713 mutex_exit(p->p_lock); 1714 rw_exit(&p->p_reflock); 1715 error = EAGAIN; 1716 goto cleanup; 1717 } 1718 dp += elem_size; 1719 buflen -= elem_size; 1720 elem_count--; 1721 } 1722 needed += elem_size; 1723 } 1724 mutex_exit(p->p_lock); 1725 1726 /* Drop reference to process. */ 1727 mutex_enter(proc_lock); 1728 rw_exit(&p->p_reflock); 1729 } 1730 mutex_exit(proc_lock); 1731 } else { 1732 mutex_enter(proc_lock); 1733 p = p_find(pid, PFIND_LOCKED); 1734 if (p == NULL) { 1735 error = ESRCH; 1736 mutex_exit(proc_lock); 1737 goto cleanup; 1738 } 1739 /* Grab a hold on the process. */ 1740 gotit = rw_tryenter(&p->p_reflock, RW_READER); 1741 mutex_exit(proc_lock); 1742 if (!gotit) { 1743 error = ESRCH; 1744 goto cleanup; 1745 } 1746 1747 mutex_enter(p->p_lock); 1748 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1749 if (buflen >= elem_size && elem_count > 0) { 1750 lwp_lock(l2); 1751 fill_lwp(l2, &klwp); 1752 lwp_unlock(l2); 1753 mutex_exit(p->p_lock); 1754 /* 1755 * Copy out elem_size, but not larger than 1756 * the size of a struct kinfo_proc2. 1757 */ 1758 error = dcopyout(l, &klwp, dp, 1759 min(sizeof(klwp), elem_size)); 1760 if (error) { 1761 rw_exit(&p->p_reflock); 1762 goto cleanup; 1763 } 1764 mutex_enter(p->p_lock); 1765 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1766 if (l2 == l3) 1767 break; 1768 } 1769 if (l3 == NULL) { 1770 mutex_exit(p->p_lock); 1771 rw_exit(&p->p_reflock); 1772 error = EAGAIN; 1773 goto cleanup; 1774 } 1775 dp += elem_size; 1776 buflen -= elem_size; 1777 elem_count--; 1778 } 1779 needed += elem_size; 1780 } 1781 mutex_exit(p->p_lock); 1782 1783 /* Drop reference to process. */ 1784 rw_exit(&p->p_reflock); 1785 } 1786 1787 if (where != NULL) { 1788 *oldlenp = dp - where; 1789 if (needed > *oldlenp) { 1790 sysctl_relock(); 1791 return (ENOMEM); 1792 } 1793 } else { 1794 needed += KERN_LWPSLOP; 1795 *oldlenp = needed; 1796 } 1797 error = 0; 1798 cleanup: 1799 sysctl_relock(); 1800 return (error); 1801 } 1802 1803 /* 1804 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1805 * given value is not too large or two small, and is at least one 1806 * timer tick if not zero. 1807 */ 1808 static int 1809 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1810 { 1811 /* userland sees value in ms, internally is in ticks */ 1812 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1813 int error, timo, lsleep; 1814 struct sysctlnode node; 1815 1816 lsleep = forkfsleep * 1000 / hz; 1817 node = *rnode; 1818 node.sysctl_data = &lsleep; 1819 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1820 if (error || newp == NULL) 1821 return (error); 1822 1823 /* refuse negative values, and overly 'long time' */ 1824 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1825 return (EINVAL); 1826 1827 timo = mstohz(lsleep); 1828 1829 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1830 if (lsleep != 0 && timo == 0) 1831 forkfsleep = 1; 1832 else 1833 forkfsleep = timo; 1834 1835 return (0); 1836 } 1837 1838 /* 1839 * sysctl helper routine for kern.root_partition 1840 */ 1841 static int 1842 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1843 { 1844 int rootpart = DISKPART(rootdev); 1845 struct sysctlnode node = *rnode; 1846 1847 node.sysctl_data = &rootpart; 1848 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1849 } 1850 1851 /* 1852 * sysctl helper function for kern.drivers 1853 */ 1854 static int 1855 sysctl_kern_drivers(SYSCTLFN_ARGS) 1856 { 1857 int error; 1858 size_t buflen; 1859 struct kinfo_drivers kd; 1860 char *start, *where; 1861 const char *dname; 1862 int i; 1863 extern struct devsw_conv *devsw_conv; 1864 extern int max_devsw_convs; 1865 1866 if (newp != NULL || namelen != 0) 1867 return (EINVAL); 1868 1869 start = where = oldp; 1870 buflen = *oldlenp; 1871 if (where == NULL) { 1872 *oldlenp = max_devsw_convs * sizeof kd; 1873 return 0; 1874 } 1875 1876 /* 1877 * An array of kinfo_drivers structures 1878 */ 1879 error = 0; 1880 sysctl_unlock(); 1881 mutex_enter(&specfs_lock); 1882 for (i = 0; i < max_devsw_convs; i++) { 1883 dname = devsw_conv[i].d_name; 1884 if (dname == NULL) 1885 continue; 1886 if (buflen < sizeof kd) { 1887 error = ENOMEM; 1888 break; 1889 } 1890 memset(&kd, 0, sizeof(kd)); 1891 kd.d_bmajor = devsw_conv[i].d_bmajor; 1892 kd.d_cmajor = devsw_conv[i].d_cmajor; 1893 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1894 mutex_exit(&specfs_lock); 1895 error = dcopyout(l, &kd, where, sizeof kd); 1896 mutex_enter(&specfs_lock); 1897 if (error != 0) 1898 break; 1899 buflen -= sizeof kd; 1900 where += sizeof kd; 1901 } 1902 mutex_exit(&specfs_lock); 1903 sysctl_relock(); 1904 *oldlenp = where - start; 1905 return error; 1906 } 1907 1908 /* 1909 * sysctl helper function for kern.file2 1910 */ 1911 static int 1912 sysctl_kern_file2(SYSCTLFN_ARGS) 1913 { 1914 struct proc *p; 1915 struct file *fp, *tp, *np; 1916 struct filedesc *fd; 1917 struct kinfo_file kf; 1918 char *dp; 1919 u_int i, op; 1920 size_t len, needed, elem_size, out_size; 1921 int error, arg, elem_count; 1922 fdfile_t *ff; 1923 1924 if (namelen == 1 && name[0] == CTL_QUERY) 1925 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1926 1927 if (namelen != 4) 1928 return (EINVAL); 1929 1930 error = 0; 1931 dp = oldp; 1932 len = (oldp != NULL) ? *oldlenp : 0; 1933 op = name[0]; 1934 arg = name[1]; 1935 elem_size = name[2]; 1936 elem_count = name[3]; 1937 out_size = MIN(sizeof(kf), elem_size); 1938 needed = 0; 1939 1940 if (elem_size < 1 || elem_count < 0) 1941 return (EINVAL); 1942 1943 switch (op) { 1944 case KERN_FILE_BYFILE: 1945 /* 1946 * doesn't use arg so it must be zero 1947 */ 1948 if (arg != 0) 1949 return (EINVAL); 1950 sysctl_unlock(); 1951 /* 1952 * allocate dummy file descriptor to make position in list 1953 */ 1954 if ((tp = fgetdummy()) == NULL) { 1955 sysctl_relock(); 1956 return ENOMEM; 1957 } 1958 mutex_enter(&filelist_lock); 1959 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1960 np = LIST_NEXT(fp, f_list); 1961 mutex_enter(&fp->f_lock); 1962 if (fp->f_count == 0) { 1963 mutex_exit(&fp->f_lock); 1964 continue; 1965 } 1966 /* 1967 * XXX Need to prevent that from being an alternative 1968 * XXX way for getting process information. 1969 */ 1970 if (kauth_authorize_generic(l->l_cred, 1971 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1972 mutex_exit(&fp->f_lock); 1973 continue; 1974 } 1975 if (len >= elem_size && elem_count > 0) { 1976 fill_file(&kf, fp, NULL, 0, 0); 1977 LIST_INSERT_AFTER(fp, tp, f_list); 1978 mutex_exit(&fp->f_lock); 1979 mutex_exit(&filelist_lock); 1980 error = dcopyout(l, &kf, dp, out_size); 1981 mutex_enter(&filelist_lock); 1982 np = LIST_NEXT(tp, f_list); 1983 LIST_REMOVE(tp, f_list); 1984 if (error) { 1985 break; 1986 } 1987 dp += elem_size; 1988 len -= elem_size; 1989 } else { 1990 mutex_exit(&fp->f_lock); 1991 } 1992 if (elem_count > 0) { 1993 needed += elem_size; 1994 if (elem_count != INT_MAX) 1995 elem_count--; 1996 } 1997 } 1998 mutex_exit(&filelist_lock); 1999 fputdummy(tp); 2000 sysctl_relock(); 2001 break; 2002 case KERN_FILE_BYPID: 2003 if (arg < -1) 2004 /* -1 means all processes */ 2005 return (EINVAL); 2006 sysctl_unlock(); 2007 mutex_enter(proc_lock); 2008 LIST_FOREACH(p, &allproc, p_list) { 2009 if (p->p_stat == SIDL) { 2010 /* skip embryonic processes */ 2011 continue; 2012 } 2013 if (arg > 0 && p->p_pid != arg) { 2014 /* pick only the one we want */ 2015 /* XXX want 0 to mean "kernel files" */ 2016 continue; 2017 } 2018 mutex_enter(p->p_lock); 2019 error = kauth_authorize_process(l->l_cred, 2020 KAUTH_PROCESS_CANSEE, p, 2021 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_OPENFILES), 2022 NULL, NULL); 2023 mutex_exit(p->p_lock); 2024 if (error != 0) { 2025 continue; 2026 } 2027 2028 /* 2029 * Grab a hold on the process. 2030 */ 2031 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 2032 continue; 2033 } 2034 mutex_exit(proc_lock); 2035 2036 /* XXX Do we need to check permission per file? */ 2037 fd = p->p_fd; 2038 mutex_enter(&fd->fd_lock); 2039 for (i = 0; i < fd->fd_nfiles; i++) { 2040 if ((ff = fd->fd_ofiles[i]) == NULL) { 2041 continue; 2042 } 2043 mutex_enter(&ff->ff_lock); 2044 if ((fp = ff->ff_file) == NULL) { 2045 mutex_exit(&ff->ff_lock); 2046 continue; 2047 } 2048 if (len >= elem_size && elem_count > 0) { 2049 mutex_enter(&fp->f_lock); 2050 fill_file(&kf, fp, ff, i, p->p_pid); 2051 mutex_exit(&fp->f_lock); 2052 mutex_exit(&ff->ff_lock); 2053 mutex_exit(&fd->fd_lock); 2054 error = dcopyout(l, &kf, dp, out_size); 2055 mutex_enter(&fd->fd_lock); 2056 if (error) 2057 break; 2058 dp += elem_size; 2059 len -= elem_size; 2060 } else { 2061 mutex_exit(&ff->ff_lock); 2062 } 2063 if (elem_count > 0) { 2064 needed += elem_size; 2065 if (elem_count != INT_MAX) 2066 elem_count--; 2067 } 2068 } 2069 mutex_exit(&fd->fd_lock); 2070 2071 /* 2072 * Release reference to process. 2073 */ 2074 mutex_enter(proc_lock); 2075 rw_exit(&p->p_reflock); 2076 } 2077 mutex_exit(proc_lock); 2078 sysctl_relock(); 2079 break; 2080 default: 2081 return (EINVAL); 2082 } 2083 2084 if (oldp == NULL) 2085 needed += KERN_FILESLOP * elem_size; 2086 *oldlenp = needed; 2087 2088 return (error); 2089 } 2090 2091 static void 2092 fill_file(struct kinfo_file *kp, const file_t *fp, const fdfile_t *ff, 2093 int i, pid_t pid) 2094 { 2095 2096 memset(kp, 0, sizeof(*kp)); 2097 2098 kp->ki_fileaddr = PTRTOUINT64(fp); 2099 kp->ki_flag = fp->f_flag; 2100 kp->ki_iflags = fp->f_iflags; 2101 kp->ki_ftype = fp->f_type; 2102 kp->ki_count = fp->f_count; 2103 kp->ki_msgcount = fp->f_msgcount; 2104 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2105 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2106 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2107 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2108 kp->ki_foffset = fp->f_offset; 2109 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2110 2111 /* vnode information to glue this file to something */ 2112 if (fp->f_type == DTYPE_VNODE) { 2113 struct vnode *vp = (struct vnode *)fp->f_data; 2114 2115 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2116 kp->ki_vsize = vp->v_size; 2117 kp->ki_vtype = vp->v_type; 2118 kp->ki_vtag = vp->v_tag; 2119 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2120 } 2121 2122 /* process information when retrieved via KERN_FILE_BYPID */ 2123 if (ff != NULL) { 2124 kp->ki_pid = pid; 2125 kp->ki_fd = i; 2126 kp->ki_ofileflags = ff->ff_exclose; 2127 kp->ki_usecount = ff->ff_refcnt; 2128 } 2129 } 2130 2131 static int 2132 sysctl_doeproc(SYSCTLFN_ARGS) 2133 { 2134 struct eproc *eproc; 2135 struct kinfo_proc2 *kproc2; 2136 struct kinfo_proc *dp; 2137 struct proc *p, *next, *marker; 2138 char *where, *dp2; 2139 int type, op, arg, error; 2140 u_int elem_size, elem_count; 2141 size_t buflen, needed; 2142 bool match, zombie, mmmbrains; 2143 2144 if (namelen == 1 && name[0] == CTL_QUERY) 2145 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2146 2147 dp = oldp; 2148 dp2 = where = oldp; 2149 buflen = where != NULL ? *oldlenp : 0; 2150 error = 0; 2151 needed = 0; 2152 type = rnode->sysctl_num; 2153 2154 if (type == KERN_PROC) { 2155 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2156 return (EINVAL); 2157 op = name[0]; 2158 if (op != KERN_PROC_ALL) 2159 arg = name[1]; 2160 else 2161 arg = 0; /* Quell compiler warning */ 2162 elem_size = elem_count = 0; /* Ditto */ 2163 } else { 2164 if (namelen != 4) 2165 return (EINVAL); 2166 op = name[0]; 2167 arg = name[1]; 2168 elem_size = name[2]; 2169 elem_count = name[3]; 2170 } 2171 2172 sysctl_unlock(); 2173 2174 if (type == KERN_PROC) { 2175 eproc = kmem_alloc(sizeof(*eproc), KM_SLEEP); 2176 kproc2 = NULL; 2177 } else { 2178 eproc = NULL; 2179 kproc2 = kmem_alloc(sizeof(*kproc2), KM_SLEEP); 2180 } 2181 marker = kmem_alloc(sizeof(*marker), KM_SLEEP); 2182 2183 mutex_enter(proc_lock); 2184 mmmbrains = false; 2185 for (p = LIST_FIRST(&allproc);; p = next) { 2186 if (p == NULL) { 2187 if (!mmmbrains) { 2188 p = LIST_FIRST(&zombproc); 2189 mmmbrains = true; 2190 } 2191 if (p == NULL) 2192 break; 2193 } 2194 next = LIST_NEXT(p, p_list); 2195 2196 /* 2197 * Skip embryonic processes. 2198 */ 2199 if (p->p_stat == SIDL) 2200 continue; 2201 2202 mutex_enter(p->p_lock); 2203 error = kauth_authorize_process(l->l_cred, 2204 KAUTH_PROCESS_CANSEE, p, 2205 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENTRY), NULL, NULL); 2206 if (error != 0) { 2207 mutex_exit(p->p_lock); 2208 continue; 2209 } 2210 2211 /* 2212 * TODO - make more efficient (see notes below). 2213 * do by session. 2214 */ 2215 switch (op) { 2216 case KERN_PROC_PID: 2217 /* could do this with just a lookup */ 2218 match = (p->p_pid == (pid_t)arg); 2219 break; 2220 2221 case KERN_PROC_PGRP: 2222 /* could do this by traversing pgrp */ 2223 match = (p->p_pgrp->pg_id == (pid_t)arg); 2224 break; 2225 2226 case KERN_PROC_SESSION: 2227 match = (p->p_session->s_sid == (pid_t)arg); 2228 break; 2229 2230 case KERN_PROC_TTY: 2231 match = true; 2232 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2233 if ((p->p_lflag & PL_CONTROLT) == 0 || 2234 p->p_session->s_ttyp == NULL || 2235 p->p_session->s_ttyvp != NULL) { 2236 match = false; 2237 } 2238 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2239 p->p_session->s_ttyp == NULL) { 2240 if ((dev_t)arg != KERN_PROC_TTY_NODEV) { 2241 match = false; 2242 } 2243 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) { 2244 match = false; 2245 } 2246 break; 2247 2248 case KERN_PROC_UID: 2249 match = (kauth_cred_geteuid(p->p_cred) == (uid_t)arg); 2250 break; 2251 2252 case KERN_PROC_RUID: 2253 match = (kauth_cred_getuid(p->p_cred) == (uid_t)arg); 2254 break; 2255 2256 case KERN_PROC_GID: 2257 match = (kauth_cred_getegid(p->p_cred) == (uid_t)arg); 2258 break; 2259 2260 case KERN_PROC_RGID: 2261 match = (kauth_cred_getgid(p->p_cred) == (uid_t)arg); 2262 break; 2263 2264 case KERN_PROC_ALL: 2265 match = true; 2266 /* allow everything */ 2267 break; 2268 2269 default: 2270 error = EINVAL; 2271 mutex_exit(p->p_lock); 2272 goto cleanup; 2273 } 2274 if (!match) { 2275 mutex_exit(p->p_lock); 2276 continue; 2277 } 2278 2279 /* 2280 * Grab a hold on the process. 2281 */ 2282 if (mmmbrains) { 2283 zombie = true; 2284 } else { 2285 zombie = !rw_tryenter(&p->p_reflock, RW_READER); 2286 } 2287 if (zombie) { 2288 LIST_INSERT_AFTER(p, marker, p_list); 2289 } 2290 2291 if (type == KERN_PROC) { 2292 if (buflen >= sizeof(struct kinfo_proc)) { 2293 fill_eproc(p, eproc, zombie); 2294 mutex_exit(p->p_lock); 2295 mutex_exit(proc_lock); 2296 error = dcopyout(l, p, &dp->kp_proc, 2297 sizeof(struct proc)); 2298 mutex_enter(proc_lock); 2299 if (error) { 2300 goto bah; 2301 } 2302 error = dcopyout(l, eproc, &dp->kp_eproc, 2303 sizeof(*eproc)); 2304 if (error) { 2305 goto bah; 2306 } 2307 dp++; 2308 buflen -= sizeof(struct kinfo_proc); 2309 } else { 2310 mutex_exit(p->p_lock); 2311 } 2312 needed += sizeof(struct kinfo_proc); 2313 } else { /* KERN_PROC2 */ 2314 if (buflen >= elem_size && elem_count > 0) { 2315 fill_kproc2(p, kproc2, zombie); 2316 mutex_exit(p->p_lock); 2317 mutex_exit(proc_lock); 2318 /* 2319 * Copy out elem_size, but not larger than 2320 * the size of a struct kinfo_proc2. 2321 */ 2322 error = dcopyout(l, kproc2, dp2, 2323 min(sizeof(*kproc2), elem_size)); 2324 mutex_enter(proc_lock); 2325 if (error) { 2326 goto bah; 2327 } 2328 dp2 += elem_size; 2329 buflen -= elem_size; 2330 elem_count--; 2331 } else { 2332 mutex_exit(p->p_lock); 2333 } 2334 needed += elem_size; 2335 } 2336 2337 /* 2338 * Release reference to process. 2339 */ 2340 if (zombie) { 2341 next = LIST_NEXT(marker, p_list); 2342 LIST_REMOVE(marker, p_list); 2343 } else { 2344 rw_exit(&p->p_reflock); 2345 } 2346 } 2347 mutex_exit(proc_lock); 2348 2349 if (where != NULL) { 2350 if (type == KERN_PROC) 2351 *oldlenp = (char *)dp - where; 2352 else 2353 *oldlenp = dp2 - where; 2354 if (needed > *oldlenp) { 2355 error = ENOMEM; 2356 goto out; 2357 } 2358 } else { 2359 needed += KERN_PROCSLOP; 2360 *oldlenp = needed; 2361 } 2362 if (kproc2) 2363 kmem_free(kproc2, sizeof(*kproc2)); 2364 if (eproc) 2365 kmem_free(eproc, sizeof(*eproc)); 2366 if (marker) 2367 kmem_free(marker, sizeof(*marker)); 2368 sysctl_relock(); 2369 return 0; 2370 bah: 2371 if (zombie) 2372 LIST_REMOVE(marker, p_list); 2373 else 2374 rw_exit(&p->p_reflock); 2375 cleanup: 2376 mutex_exit(proc_lock); 2377 out: 2378 if (kproc2) 2379 kmem_free(kproc2, sizeof(*kproc2)); 2380 if (eproc) 2381 kmem_free(eproc, sizeof(*eproc)); 2382 if (marker) 2383 kmem_free(marker, sizeof(*marker)); 2384 sysctl_relock(); 2385 return error; 2386 } 2387 2388 /* 2389 * sysctl helper routine for kern.proc_args pseudo-subtree. 2390 */ 2391 static int 2392 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2393 { 2394 struct ps_strings pss; 2395 struct proc *p; 2396 size_t len, i; 2397 struct uio auio; 2398 struct iovec aiov; 2399 pid_t pid; 2400 int nargv, type, error, argvlen; 2401 char *arg; 2402 char **argv = NULL; 2403 char *tmp; 2404 struct vmspace *vmspace; 2405 vaddr_t psstr_addr; 2406 vaddr_t offsetn; 2407 vaddr_t offsetv; 2408 2409 if (namelen == 1 && name[0] == CTL_QUERY) 2410 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2411 2412 if (newp != NULL || namelen != 2) 2413 return (EINVAL); 2414 pid = name[0]; 2415 type = name[1]; 2416 argv = NULL; 2417 argvlen = 0; 2418 2419 switch (type) { 2420 case KERN_PROC_ARGV: 2421 case KERN_PROC_NARGV: 2422 case KERN_PROC_ENV: 2423 case KERN_PROC_NENV: 2424 /* ok */ 2425 break; 2426 default: 2427 return (EINVAL); 2428 } 2429 2430 sysctl_unlock(); 2431 2432 /* check pid */ 2433 mutex_enter(proc_lock); 2434 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2435 error = EINVAL; 2436 goto out_locked; 2437 } 2438 mutex_enter(p->p_lock); 2439 2440 /* Check permission. */ 2441 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2442 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2443 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ARGS), NULL, NULL); 2444 else if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) 2445 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2446 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENV), NULL, NULL); 2447 else 2448 error = EINVAL; /* XXXGCC */ 2449 if (error) { 2450 mutex_exit(p->p_lock); 2451 goto out_locked; 2452 } 2453 2454 if (oldp == NULL) { 2455 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2456 *oldlenp = sizeof (int); 2457 else 2458 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2459 error = 0; 2460 mutex_exit(p->p_lock); 2461 goto out_locked; 2462 } 2463 2464 /* 2465 * Zombies don't have a stack, so we can't read their psstrings. 2466 * System processes also don't have a user stack. 2467 */ 2468 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2469 error = EINVAL; 2470 mutex_exit(p->p_lock); 2471 goto out_locked; 2472 } 2473 2474 /* 2475 * Lock the process down in memory. 2476 */ 2477 psstr_addr = (vaddr_t)p->p_psstr; 2478 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2479 offsetn = p->p_psnargv; 2480 offsetv = p->p_psargv; 2481 } else { 2482 offsetn = p->p_psnenv; 2483 offsetv = p->p_psenv; 2484 } 2485 vmspace = p->p_vmspace; 2486 uvmspace_addref(vmspace); 2487 mutex_exit(p->p_lock); 2488 mutex_exit(proc_lock); 2489 2490 /* 2491 * Allocate a temporary buffer to hold the arguments. 2492 */ 2493 arg = kmem_alloc(PAGE_SIZE, KM_SLEEP); 2494 2495 /* 2496 * Read in the ps_strings structure. 2497 */ 2498 aiov.iov_base = &pss; 2499 aiov.iov_len = sizeof(pss); 2500 auio.uio_iov = &aiov; 2501 auio.uio_iovcnt = 1; 2502 auio.uio_offset = psstr_addr; 2503 auio.uio_resid = sizeof(pss); 2504 auio.uio_rw = UIO_READ; 2505 UIO_SETUP_SYSSPACE(&auio); 2506 error = uvm_io(&vmspace->vm_map, &auio); 2507 if (error) 2508 goto done; 2509 2510 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2511 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2512 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2513 *oldlenp = sizeof(nargv); 2514 goto done; 2515 } 2516 /* 2517 * Now read the address of the argument vector. 2518 */ 2519 switch (type) { 2520 case KERN_PROC_ARGV: 2521 /* FALLTHROUGH */ 2522 case KERN_PROC_ENV: 2523 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2524 break; 2525 default: 2526 error = EINVAL; 2527 goto done; 2528 } 2529 2530 #ifdef COMPAT_NETBSD32 2531 if (p->p_flag & PK_32) 2532 len = sizeof(netbsd32_charp) * nargv; 2533 else 2534 #endif 2535 len = sizeof(char *) * nargv; 2536 2537 if ((argvlen = len) != 0) 2538 argv = kmem_alloc(len, KM_SLEEP); 2539 2540 aiov.iov_base = argv; 2541 aiov.iov_len = len; 2542 auio.uio_iov = &aiov; 2543 auio.uio_iovcnt = 1; 2544 auio.uio_offset = (off_t)(unsigned long)tmp; 2545 auio.uio_resid = len; 2546 auio.uio_rw = UIO_READ; 2547 UIO_SETUP_SYSSPACE(&auio); 2548 error = uvm_io(&vmspace->vm_map, &auio); 2549 if (error) 2550 goto done; 2551 2552 /* 2553 * Now copy each string. 2554 */ 2555 len = 0; /* bytes written to user buffer */ 2556 for (i = 0; i < nargv; i++) { 2557 int finished = 0; 2558 vaddr_t base; 2559 size_t xlen; 2560 int j; 2561 2562 #ifdef COMPAT_NETBSD32 2563 if (p->p_flag & PK_32) { 2564 netbsd32_charp *argv32; 2565 2566 argv32 = (netbsd32_charp *)argv; 2567 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2568 } else 2569 #endif 2570 base = (vaddr_t)argv[i]; 2571 2572 /* 2573 * The program has messed around with its arguments, 2574 * possibly deleting some, and replacing them with 2575 * NULL's. Treat this as the last argument and not 2576 * a failure. 2577 */ 2578 if (base == 0) 2579 break; 2580 2581 while (!finished) { 2582 xlen = PAGE_SIZE - (base & PAGE_MASK); 2583 2584 aiov.iov_base = arg; 2585 aiov.iov_len = PAGE_SIZE; 2586 auio.uio_iov = &aiov; 2587 auio.uio_iovcnt = 1; 2588 auio.uio_offset = base; 2589 auio.uio_resid = xlen; 2590 auio.uio_rw = UIO_READ; 2591 UIO_SETUP_SYSSPACE(&auio); 2592 error = uvm_io(&vmspace->vm_map, &auio); 2593 if (error) 2594 goto done; 2595 2596 /* Look for the end of the string */ 2597 for (j = 0; j < xlen; j++) { 2598 if (arg[j] == '\0') { 2599 xlen = j + 1; 2600 finished = 1; 2601 break; 2602 } 2603 } 2604 2605 /* Check for user buffer overflow */ 2606 if (len + xlen > *oldlenp) { 2607 finished = 1; 2608 if (len > *oldlenp) 2609 xlen = 0; 2610 else 2611 xlen = *oldlenp - len; 2612 } 2613 2614 /* Copyout the page */ 2615 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2616 if (error) 2617 goto done; 2618 2619 len += xlen; 2620 base += xlen; 2621 } 2622 } 2623 *oldlenp = len; 2624 2625 done: 2626 if (argvlen != 0) 2627 kmem_free(argv, argvlen); 2628 uvmspace_free(vmspace); 2629 kmem_free(arg, PAGE_SIZE); 2630 sysctl_relock(); 2631 return error; 2632 2633 out_locked: 2634 mutex_exit(proc_lock); 2635 sysctl_relock(); 2636 return error; 2637 } 2638 2639 static int 2640 sysctl_security_setidcore(SYSCTLFN_ARGS) 2641 { 2642 int newsize, error; 2643 struct sysctlnode node; 2644 2645 node = *rnode; 2646 node.sysctl_data = &newsize; 2647 newsize = *(int *)rnode->sysctl_data; 2648 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2649 if (error || newp == NULL) 2650 return error; 2651 2652 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2653 0, NULL, NULL, NULL)) 2654 return (EPERM); 2655 2656 *(int *)rnode->sysctl_data = newsize; 2657 2658 return 0; 2659 } 2660 2661 static int 2662 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2663 { 2664 int error; 2665 char *newsetidcorename; 2666 struct sysctlnode node; 2667 2668 newsetidcorename = PNBUF_GET(); 2669 node = *rnode; 2670 node.sysctl_data = newsetidcorename; 2671 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2672 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2673 if (error || newp == NULL) { 2674 goto out; 2675 } 2676 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2677 0, NULL, NULL, NULL)) { 2678 error = EPERM; 2679 goto out; 2680 } 2681 if (strlen(newsetidcorename) == 0) { 2682 error = EINVAL; 2683 goto out; 2684 } 2685 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2686 out: 2687 PNBUF_PUT(newsetidcorename); 2688 return error; 2689 } 2690 2691 /* 2692 * sysctl helper routine for kern.cp_id node. Maps cpus to their 2693 * cpuids. 2694 */ 2695 static int 2696 sysctl_kern_cpid(SYSCTLFN_ARGS) 2697 { 2698 struct sysctlnode node = *rnode; 2699 uint64_t *cp_id = NULL; 2700 int error, n = ncpu; 2701 struct cpu_info *ci; 2702 CPU_INFO_ITERATOR cii; 2703 2704 /* 2705 * Here you may either retrieve a single cpu id or the whole 2706 * set. The size you get back when probing depends on what 2707 * you ask for. 2708 */ 2709 switch (namelen) { 2710 case 0: 2711 node.sysctl_size = n * sizeof(uint64_t); 2712 n = -2; /* ALL */ 2713 break; 2714 case 1: 2715 if (name[0] < 0 || name[0] >= n) 2716 return (ENOENT); /* ENOSUCHPROCESSOR */ 2717 node.sysctl_size = sizeof(uint64_t); 2718 n = name[0]; 2719 /* 2720 * adjust these so that sysctl_lookup() will be happy 2721 */ 2722 name++; 2723 namelen--; 2724 break; 2725 default: 2726 return (EINVAL); 2727 } 2728 2729 cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP); 2730 if (cp_id == NULL) 2731 return (ENOMEM); 2732 node.sysctl_data = cp_id; 2733 memset(cp_id, 0, node.sysctl_size); 2734 2735 for (CPU_INFO_FOREACH(cii, ci)) { 2736 if (n <= 0) 2737 cp_id[0] = cpu_index(ci); 2738 /* 2739 * if a specific processor was requested and we just 2740 * did it, we're done here 2741 */ 2742 if (n == 0) 2743 break; 2744 /* 2745 * if doing "all", skip to next cp_id slot for next processor 2746 */ 2747 if (n == -2) 2748 cp_id++; 2749 /* 2750 * if we're doing a specific processor, we're one 2751 * processor closer 2752 */ 2753 if (n > 0) 2754 n--; 2755 } 2756 2757 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2758 kmem_free(node.sysctl_data, node.sysctl_size); 2759 return (error); 2760 } 2761 2762 /* 2763 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 2764 * calculate on the fly taking into account integer overflow and the 2765 * current wired count. 2766 */ 2767 static int 2768 sysctl_hw_usermem(SYSCTLFN_ARGS) 2769 { 2770 u_int ui; 2771 u_quad_t uq; 2772 struct sysctlnode node; 2773 2774 node = *rnode; 2775 switch (rnode->sysctl_num) { 2776 case HW_USERMEM: 2777 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2778 ui = UINT_MAX; 2779 else 2780 ui *= PAGE_SIZE; 2781 node.sysctl_data = &ui; 2782 break; 2783 case HW_USERMEM64: 2784 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2785 node.sysctl_data = &uq; 2786 break; 2787 default: 2788 return (EINVAL); 2789 } 2790 2791 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2792 } 2793 2794 /* 2795 * sysctl helper routine for kern.cnmagic node. Pulls the old value 2796 * out, encoded, and stuffs the new value in for decoding. 2797 */ 2798 static int 2799 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2800 { 2801 char magic[CNS_LEN]; 2802 int error; 2803 struct sysctlnode node; 2804 2805 if (oldp) 2806 cn_get_magic(magic, CNS_LEN); 2807 node = *rnode; 2808 node.sysctl_data = &magic[0]; 2809 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2810 if (error || newp == NULL) 2811 return (error); 2812 2813 return (cn_set_magic(magic)); 2814 } 2815 2816 /* 2817 * ******************************************************************** 2818 * section 3: public helper routines that are used for more than one 2819 * node 2820 * ******************************************************************** 2821 */ 2822 2823 /* 2824 * sysctl helper routine for the kern.root_device node and some ports' 2825 * machdep.root_device nodes. 2826 */ 2827 int 2828 sysctl_root_device(SYSCTLFN_ARGS) 2829 { 2830 struct sysctlnode node; 2831 2832 node = *rnode; 2833 node.sysctl_data = root_device->dv_xname; 2834 node.sysctl_size = strlen(device_xname(root_device)) + 1; 2835 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2836 } 2837 2838 /* 2839 * sysctl helper routine for kern.consdev, dependent on the current 2840 * state of the console. Also used for machdep.console_device on some 2841 * ports. 2842 */ 2843 int 2844 sysctl_consdev(SYSCTLFN_ARGS) 2845 { 2846 dev_t consdev; 2847 struct sysctlnode node; 2848 2849 if (cn_tab != NULL) 2850 consdev = cn_tab->cn_dev; 2851 else 2852 consdev = NODEV; 2853 node = *rnode; 2854 node.sysctl_data = &consdev; 2855 node.sysctl_size = sizeof(consdev); 2856 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2857 } 2858 2859 /* 2860 * ******************************************************************** 2861 * section 4: support for some helpers 2862 * ******************************************************************** 2863 */ 2864 2865 /* 2866 * Fill in a kinfo_proc2 structure for the specified process. 2867 */ 2868 static void 2869 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki, bool zombie) 2870 { 2871 struct tty *tp; 2872 struct lwp *l, *l2; 2873 struct timeval ut, st, rt; 2874 sigset_t ss1, ss2; 2875 struct rusage ru; 2876 struct vmspace *vm; 2877 int tmp; 2878 2879 KASSERT(mutex_owned(proc_lock)); 2880 KASSERT(mutex_owned(p->p_lock)); 2881 2882 sigemptyset(&ss1); 2883 sigemptyset(&ss2); 2884 memset(ki, 0, sizeof(*ki)); 2885 2886 ki->p_paddr = PTRTOUINT64(p); 2887 ki->p_fd = PTRTOUINT64(p->p_fd); 2888 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2889 ki->p_stats = PTRTOUINT64(p->p_stats); 2890 ki->p_limit = PTRTOUINT64(p->p_limit); 2891 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2892 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2893 ki->p_sess = PTRTOUINT64(p->p_session); 2894 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2895 ki->p_ru = PTRTOUINT64(&p->p_stats->p_ru); 2896 ki->p_eflag = 0; 2897 ki->p_exitsig = p->p_exitsig; 2898 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2899 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2900 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2901 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2902 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2903 ki->p_pid = p->p_pid; 2904 if (p->p_pptr) 2905 ki->p_ppid = p->p_pptr->p_pid; 2906 else 2907 ki->p_ppid = 0; 2908 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2909 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2910 ki->p_gid = kauth_cred_getegid(p->p_cred); 2911 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2912 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2913 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2914 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2915 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2916 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0])), 2917 UIO_SYSSPACE); 2918 2919 ki->p_uticks = p->p_uticks; 2920 ki->p_sticks = p->p_sticks; 2921 ki->p_iticks = p->p_iticks; 2922 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2923 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2924 ki->p_traceflag = p->p_traceflag; 2925 2926 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2927 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2928 2929 ki->p_cpticks = 0; 2930 ki->p_pctcpu = p->p_pctcpu; 2931 ki->p_estcpu = 0; 2932 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2933 ki->p_realstat = p->p_stat; 2934 ki->p_nice = p->p_nice; 2935 ki->p_xstat = p->p_xstat; 2936 ki->p_acflag = p->p_acflag; 2937 2938 strncpy(ki->p_comm, p->p_comm, 2939 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2940 strncpy(ki->p_ename, p->p_emul->e_name, sizeof(ki->p_ename)); 2941 2942 ki->p_nlwps = p->p_nlwps; 2943 ki->p_realflag = ki->p_flag; 2944 2945 if (p->p_stat != SIDL && !P_ZOMBIE(p) && !zombie) { 2946 vm = p->p_vmspace; 2947 ki->p_vm_rssize = vm_resident_count(vm); 2948 ki->p_vm_tsize = vm->vm_tsize; 2949 ki->p_vm_dsize = vm->vm_dsize; 2950 ki->p_vm_ssize = vm->vm_ssize; 2951 2952 /* Pick a "representative" LWP */ 2953 l = proc_representative_lwp(p, &tmp, 1); 2954 lwp_lock(l); 2955 ki->p_nrlwps = tmp; 2956 ki->p_forw = 0; 2957 ki->p_back = 0; 2958 ki->p_addr = PTRTOUINT64(l->l_addr); 2959 ki->p_stat = l->l_stat; 2960 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2961 ki->p_swtime = l->l_swtime; 2962 ki->p_slptime = l->l_slptime; 2963 if (l->l_stat == LSONPROC) 2964 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2965 else 2966 ki->p_schedflags = 0; 2967 ki->p_holdcnt = l->l_holdcnt; 2968 ki->p_priority = lwp_eprio(l); 2969 ki->p_usrpri = l->l_priority; 2970 if (l->l_wchan) 2971 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2972 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2973 ki->p_cpuid = cpu_index(l->l_cpu); 2974 lwp_unlock(l); 2975 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2976 /* This is hardly correct, but... */ 2977 sigplusset(&l->l_sigpend.sp_set, &ss1); 2978 sigplusset(&l->l_sigmask, &ss2); 2979 ki->p_cpticks += l->l_cpticks; 2980 ki->p_pctcpu += l->l_pctcpu; 2981 ki->p_estcpu += l->l_estcpu; 2982 } 2983 } 2984 sigplusset(&p->p_sigpend.sp_set, &ss2); 2985 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2986 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2987 2988 if (p->p_session != NULL) { 2989 ki->p_sid = p->p_session->s_sid; 2990 ki->p__pgid = p->p_pgrp->pg_id; 2991 if (p->p_session->s_ttyvp) 2992 ki->p_eflag |= EPROC_CTTY; 2993 if (SESS_LEADER(p)) 2994 ki->p_eflag |= EPROC_SLEADER; 2995 strncpy(ki->p_login, p->p_session->s_login, 2996 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2997 ki->p_jobc = p->p_pgrp->pg_jobc; 2998 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2999 ki->p_tdev = tp->t_dev; 3000 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3001 ki->p_tsess = PTRTOUINT64(tp->t_session); 3002 } else { 3003 ki->p_tdev = NODEV; 3004 } 3005 } 3006 3007 if (!P_ZOMBIE(p) && !zombie) { 3008 ki->p_uvalid = 1; 3009 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 3010 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 3011 3012 calcru(p, &ut, &st, NULL, &rt); 3013 ki->p_rtime_sec = rt.tv_sec; 3014 ki->p_rtime_usec = rt.tv_usec; 3015 ki->p_uutime_sec = ut.tv_sec; 3016 ki->p_uutime_usec = ut.tv_usec; 3017 ki->p_ustime_sec = st.tv_sec; 3018 ki->p_ustime_usec = st.tv_usec; 3019 3020 memcpy(&ru, &p->p_stats->p_ru, sizeof(ru)); 3021 ki->p_uru_nvcsw = 0; 3022 ki->p_uru_nivcsw = 0; 3023 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 3024 ki->p_uru_nvcsw += (l2->l_ncsw - l2->l_nivcsw); 3025 ki->p_uru_nivcsw += l2->l_nivcsw; 3026 ruadd(&ru, &l2->l_ru); 3027 } 3028 ki->p_uru_maxrss = ru.ru_maxrss; 3029 ki->p_uru_ixrss = ru.ru_ixrss; 3030 ki->p_uru_idrss = ru.ru_idrss; 3031 ki->p_uru_isrss = ru.ru_isrss; 3032 ki->p_uru_minflt = ru.ru_minflt; 3033 ki->p_uru_majflt = ru.ru_majflt; 3034 ki->p_uru_nswap = ru.ru_nswap; 3035 ki->p_uru_inblock = ru.ru_inblock; 3036 ki->p_uru_oublock = ru.ru_oublock; 3037 ki->p_uru_msgsnd = ru.ru_msgsnd; 3038 ki->p_uru_msgrcv = ru.ru_msgrcv; 3039 ki->p_uru_nsignals = ru.ru_nsignals; 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 } 3047 3048 /* 3049 * Fill in a kinfo_lwp structure for the specified lwp. 3050 */ 3051 static void 3052 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3053 { 3054 struct proc *p = l->l_proc; 3055 struct timeval tv; 3056 3057 KASSERT(lwp_locked(l, NULL)); 3058 3059 kl->l_forw = 0; 3060 kl->l_back = 0; 3061 kl->l_laddr = PTRTOUINT64(l); 3062 kl->l_addr = PTRTOUINT64(l->l_addr); 3063 kl->l_stat = l->l_stat; 3064 kl->l_lid = l->l_lid; 3065 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 3066 3067 kl->l_swtime = l->l_swtime; 3068 kl->l_slptime = l->l_slptime; 3069 if (l->l_stat == LSONPROC) 3070 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3071 else 3072 kl->l_schedflags = 0; 3073 kl->l_holdcnt = l->l_holdcnt; 3074 kl->l_priority = lwp_eprio(l); 3075 kl->l_usrpri = l->l_priority; 3076 if (l->l_wchan) 3077 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3078 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3079 kl->l_cpuid = cpu_index(l->l_cpu); 3080 bintime2timeval(&l->l_rtime, &tv); 3081 kl->l_rtime_sec = tv.tv_sec; 3082 kl->l_rtime_usec = tv.tv_usec; 3083 kl->l_cpticks = l->l_cpticks; 3084 kl->l_pctcpu = l->l_pctcpu; 3085 kl->l_pid = p->p_pid; 3086 if (l->l_name == NULL) 3087 kl->l_name[0] = '\0'; 3088 else 3089 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 3090 } 3091 3092 /* 3093 * Fill in an eproc structure for the specified process. 3094 */ 3095 void 3096 fill_eproc(struct proc *p, struct eproc *ep, bool zombie) 3097 { 3098 struct tty *tp; 3099 struct lwp *l; 3100 3101 KASSERT(mutex_owned(proc_lock)); 3102 KASSERT(mutex_owned(p->p_lock)); 3103 3104 memset(ep, 0, sizeof(*ep)); 3105 3106 ep->e_paddr = p; 3107 ep->e_sess = p->p_session; 3108 if (p->p_cred) { 3109 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 3110 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 3111 } 3112 if (p->p_stat != SIDL && !P_ZOMBIE(p) && !zombie) { 3113 struct vmspace *vm = p->p_vmspace; 3114 3115 ep->e_vm.vm_rssize = vm_resident_count(vm); 3116 ep->e_vm.vm_tsize = vm->vm_tsize; 3117 ep->e_vm.vm_dsize = vm->vm_dsize; 3118 ep->e_vm.vm_ssize = vm->vm_ssize; 3119 3120 /* Pick a "representative" LWP */ 3121 l = proc_representative_lwp(p, NULL, 1); 3122 lwp_lock(l); 3123 if (l->l_wchan) 3124 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3125 lwp_unlock(l); 3126 } 3127 if (p->p_pptr) 3128 ep->e_ppid = p->p_pptr->p_pid; 3129 if (p->p_pgrp && p->p_session) { 3130 ep->e_pgid = p->p_pgrp->pg_id; 3131 ep->e_jobc = p->p_pgrp->pg_jobc; 3132 ep->e_sid = p->p_session->s_sid; 3133 if ((p->p_lflag & PL_CONTROLT) && 3134 (tp = ep->e_sess->s_ttyp)) { 3135 ep->e_tdev = tp->t_dev; 3136 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3137 ep->e_tsess = tp->t_session; 3138 } else 3139 ep->e_tdev = NODEV; 3140 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3141 if (SESS_LEADER(p)) 3142 ep->e_flag |= EPROC_SLEADER; 3143 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3144 } 3145 ep->e_xsize = ep->e_xrssize = 0; 3146 ep->e_xccount = ep->e_xswrss = 0; 3147 } 3148 3149 u_int 3150 sysctl_map_flags(const u_int *map, u_int word) 3151 { 3152 u_int rv; 3153 3154 for (rv = 0; *map != 0; map += 2) 3155 if ((word & map[0]) != 0) 3156 rv |= map[1]; 3157 3158 return rv; 3159 } 3160
Indexes created Mon Sep 22 13:09:51 GMT 2025