init_sysctl.c revision 1.137.2.2
1 /* $NetBSD: init_sysctl.c,v 1.137.2.2 2008/05/14 19:54:12 wrstuden 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 1.137.2.2 2008/05/14 19:54:12 wrstuden 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 #ifdef COMPAT_NETBSD32 71 #include <compat/netbsd32/netbsd32.h> 72 #endif 73 74 #include <sys/cpu.h> 75 76 /* XXX this should not be here */ 77 int security_setidcore_dump; 78 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 79 uid_t security_setidcore_owner = 0; 80 gid_t security_setidcore_group = 0; 81 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 82 83 static const u_int sysctl_flagmap[] = { 84 PK_ADVLOCK, P_ADVLOCK, 85 PK_EXEC, P_EXEC, 86 PK_NOCLDWAIT, P_NOCLDWAIT, 87 PK_32, P_32, 88 PK_CLDSIGIGN, P_CLDSIGIGN, 89 PK_SUGID, P_SUGID, 90 0 91 }; 92 93 static const u_int sysctl_sflagmap[] = { 94 PS_NOCLDSTOP, P_NOCLDSTOP, 95 PS_PPWAIT, P_PPWAIT, 96 PS_WEXIT, P_WEXIT, 97 PS_STOPFORK, P_STOPFORK, 98 PS_STOPEXEC, P_STOPEXEC, 99 PS_STOPEXIT, P_STOPEXIT, 100 0 101 }; 102 103 static const u_int sysctl_slflagmap[] = { 104 PSL_TRACED, P_TRACED, 105 PSL_FSTRACE, P_FSTRACE, 106 PSL_CHTRACED, P_CHTRACED, 107 PSL_SYSCALL, P_SYSCALL, 108 0 109 }; 110 111 static const u_int sysctl_lflagmap[] = { 112 PL_CONTROLT, P_CONTROLT, 113 0 114 }; 115 116 static const u_int sysctl_stflagmap[] = { 117 PST_PROFIL, P_PROFIL, 118 0 119 120 }; 121 122 static const u_int sysctl_lwpflagmap[] = { 123 LW_INMEM, P_INMEM, 124 LW_SINTR, P_SINTR, 125 LW_SYSTEM, P_SYSTEM, 126 LW_SA, P_SA, /* WRS ??? */ 127 0 128 }; 129 130 static const u_int sysctl_lwpprflagmap[] = { 131 LPR_DETACHED, L_DETACHED, 132 0 133 }; 134 135 /* 136 * try over estimating by 5 procs/lwps 137 */ 138 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 139 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 140 141 static int dcopyout(struct lwp *, const void *, void *, size_t); 142 143 static int 144 dcopyout(struct lwp *l, const void *kaddr, void *uaddr, size_t len) 145 { 146 int error; 147 148 error = copyout(kaddr, uaddr, len); 149 ktrmibio(-1, UIO_READ, uaddr, len, error); 150 151 return error; 152 } 153 154 #ifdef DIAGNOSTIC 155 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 156 #endif 157 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 158 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 159 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 160 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 161 static int sysctl_setlen(SYSCTLFN_PROTO); 162 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 163 static int sysctl_kern_file(SYSCTLFN_PROTO); 164 static int sysctl_msgbuf(SYSCTLFN_PROTO); 165 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 166 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 167 #if NPTY > 0 168 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 169 #endif /* NPTY > 0 */ 170 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 171 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 172 static int sysctl_kern_arnd(SYSCTLFN_PROTO); 173 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 174 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 175 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 176 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 177 static int sysctl_kern_file2(SYSCTLFN_PROTO); 178 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 179 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 180 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 181 static int sysctl_doeproc(SYSCTLFN_PROTO); 182 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 183 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 184 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 185 186 static u_int sysctl_map_flags(const u_int *, u_int); 187 static void fill_kproc2(struct proc *, struct kinfo_proc2 *, bool); 188 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 189 static void fill_file(struct kinfo_file *, const file_t *, const fdfile_t *, 190 int, pid_t); 191 192 /* 193 * ******************************************************************** 194 * section 1: setup routines 195 * ******************************************************************** 196 * These functions are stuffed into a link set for sysctl setup 197 * functions. They're never called or referenced from anywhere else. 198 * ******************************************************************** 199 */ 200 201 /* 202 * sets up the base nodes... 203 */ 204 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 205 { 206 207 sysctl_createv(clog, 0, NULL, NULL, 208 CTLFLAG_PERMANENT, 209 CTLTYPE_NODE, "kern", 210 SYSCTL_DESCR("High kernel"), 211 NULL, 0, NULL, 0, 212 CTL_KERN, CTL_EOL); 213 sysctl_createv(clog, 0, NULL, NULL, 214 CTLFLAG_PERMANENT, 215 CTLTYPE_NODE, "vm", 216 SYSCTL_DESCR("Virtual memory"), 217 NULL, 0, NULL, 0, 218 CTL_VM, CTL_EOL); 219 sysctl_createv(clog, 0, NULL, NULL, 220 CTLFLAG_PERMANENT, 221 CTLTYPE_NODE, "vfs", 222 SYSCTL_DESCR("Filesystem"), 223 NULL, 0, NULL, 0, 224 CTL_VFS, CTL_EOL); 225 sysctl_createv(clog, 0, NULL, NULL, 226 CTLFLAG_PERMANENT, 227 CTLTYPE_NODE, "net", 228 SYSCTL_DESCR("Networking"), 229 NULL, 0, NULL, 0, 230 CTL_NET, CTL_EOL); 231 sysctl_createv(clog, 0, NULL, NULL, 232 CTLFLAG_PERMANENT, 233 CTLTYPE_NODE, "debug", 234 SYSCTL_DESCR("Debugging"), 235 NULL, 0, NULL, 0, 236 CTL_DEBUG, CTL_EOL); 237 sysctl_createv(clog, 0, NULL, NULL, 238 CTLFLAG_PERMANENT, 239 CTLTYPE_NODE, "hw", 240 SYSCTL_DESCR("Generic CPU, I/O"), 241 NULL, 0, NULL, 0, 242 CTL_HW, CTL_EOL); 243 sysctl_createv(clog, 0, NULL, NULL, 244 CTLFLAG_PERMANENT, 245 CTLTYPE_NODE, "machdep", 246 SYSCTL_DESCR("Machine dependent"), 247 NULL, 0, NULL, 0, 248 CTL_MACHDEP, CTL_EOL); 249 /* 250 * this node is inserted so that the sysctl nodes in libc can 251 * operate. 252 */ 253 sysctl_createv(clog, 0, NULL, NULL, 254 CTLFLAG_PERMANENT, 255 CTLTYPE_NODE, "user", 256 SYSCTL_DESCR("User-level"), 257 NULL, 0, NULL, 0, 258 CTL_USER, CTL_EOL); 259 sysctl_createv(clog, 0, NULL, NULL, 260 CTLFLAG_PERMANENT, 261 CTLTYPE_NODE, "ddb", 262 SYSCTL_DESCR("In-kernel debugger"), 263 NULL, 0, NULL, 0, 264 CTL_DDB, CTL_EOL); 265 sysctl_createv(clog, 0, NULL, NULL, 266 CTLFLAG_PERMANENT, 267 CTLTYPE_NODE, "proc", 268 SYSCTL_DESCR("Per-process"), 269 NULL, 0, NULL, 0, 270 CTL_PROC, CTL_EOL); 271 sysctl_createv(clog, 0, NULL, NULL, 272 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 273 CTLTYPE_NODE, "vendor", 274 SYSCTL_DESCR("Vendor specific"), 275 NULL, 0, NULL, 0, 276 CTL_VENDOR, CTL_EOL); 277 sysctl_createv(clog, 0, NULL, NULL, 278 CTLFLAG_PERMANENT, 279 CTLTYPE_NODE, "emul", 280 SYSCTL_DESCR("Emulation settings"), 281 NULL, 0, NULL, 0, 282 CTL_EMUL, CTL_EOL); 283 sysctl_createv(clog, 0, NULL, NULL, 284 CTLFLAG_PERMANENT, 285 CTLTYPE_NODE, "security", 286 SYSCTL_DESCR("Security"), 287 NULL, 0, NULL, 0, 288 CTL_SECURITY, CTL_EOL); 289 } 290 291 /* 292 * this setup routine is a replacement for kern_sysctl() 293 */ 294 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 295 { 296 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 297 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 298 extern int dumponpanic; /* defined in kern/subr_prf.c */ 299 const struct sysctlnode *rnode; 300 301 sysctl_createv(clog, 0, NULL, NULL, 302 CTLFLAG_PERMANENT, 303 CTLTYPE_NODE, "kern", NULL, 304 NULL, 0, NULL, 0, 305 CTL_KERN, CTL_EOL); 306 307 sysctl_createv(clog, 0, NULL, NULL, 308 CTLFLAG_PERMANENT, 309 CTLTYPE_STRING, "ostype", 310 SYSCTL_DESCR("Operating system type"), 311 NULL, 0, &ostype, 0, 312 CTL_KERN, KERN_OSTYPE, CTL_EOL); 313 sysctl_createv(clog, 0, NULL, NULL, 314 CTLFLAG_PERMANENT, 315 CTLTYPE_STRING, "osrelease", 316 SYSCTL_DESCR("Operating system release"), 317 NULL, 0, &osrelease, 0, 318 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 319 sysctl_createv(clog, 0, NULL, NULL, 320 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 321 CTLTYPE_INT, "osrevision", 322 SYSCTL_DESCR("Operating system revision"), 323 NULL, __NetBSD_Version__, NULL, 0, 324 CTL_KERN, KERN_OSREV, CTL_EOL); 325 sysctl_createv(clog, 0, NULL, NULL, 326 CTLFLAG_PERMANENT, 327 CTLTYPE_STRING, "version", 328 SYSCTL_DESCR("Kernel version"), 329 NULL, 0, &version, 0, 330 CTL_KERN, KERN_VERSION, CTL_EOL); 331 sysctl_createv(clog, 0, NULL, NULL, 332 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 333 CTLTYPE_INT, "maxvnodes", 334 SYSCTL_DESCR("Maximum number of vnodes"), 335 sysctl_kern_maxvnodes, 0, NULL, 0, 336 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 337 sysctl_createv(clog, 0, NULL, NULL, 338 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 339 CTLTYPE_INT, "maxproc", 340 SYSCTL_DESCR("Maximum number of simultaneous processes"), 341 sysctl_kern_maxproc, 0, NULL, 0, 342 CTL_KERN, KERN_MAXPROC, CTL_EOL); 343 sysctl_createv(clog, 0, NULL, NULL, 344 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 345 CTLTYPE_INT, "maxfiles", 346 SYSCTL_DESCR("Maximum number of open files"), 347 NULL, 0, &maxfiles, 0, 348 CTL_KERN, KERN_MAXFILES, CTL_EOL); 349 sysctl_createv(clog, 0, NULL, NULL, 350 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 351 CTLTYPE_INT, "argmax", 352 SYSCTL_DESCR("Maximum number of bytes of arguments to " 353 "execve(2)"), 354 NULL, ARG_MAX, NULL, 0, 355 CTL_KERN, KERN_ARGMAX, CTL_EOL); 356 sysctl_createv(clog, 0, NULL, NULL, 357 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 358 CTLTYPE_STRING, "hostname", 359 SYSCTL_DESCR("System hostname"), 360 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 361 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 362 sysctl_createv(clog, 0, NULL, NULL, 363 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 364 CTLTYPE_INT, "hostid", 365 SYSCTL_DESCR("System host ID number"), 366 sysctl_kern_hostid, 0, NULL, 0, 367 CTL_KERN, KERN_HOSTID, CTL_EOL); 368 sysctl_createv(clog, 0, NULL, NULL, 369 CTLFLAG_PERMANENT, 370 CTLTYPE_STRUCT, "clockrate", 371 SYSCTL_DESCR("Kernel clock rates"), 372 sysctl_kern_clockrate, 0, NULL, 373 sizeof(struct clockinfo), 374 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 375 sysctl_createv(clog, 0, NULL, NULL, 376 CTLFLAG_PERMANENT, 377 CTLTYPE_INT, "hardclock_ticks", 378 SYSCTL_DESCR("Number of hardclock ticks"), 379 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 380 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 381 sysctl_createv(clog, 0, NULL, NULL, 382 CTLFLAG_PERMANENT, 383 CTLTYPE_STRUCT, "vnode", 384 SYSCTL_DESCR("System vnode table"), 385 sysctl_kern_vnode, 0, NULL, 0, 386 CTL_KERN, KERN_VNODE, CTL_EOL); 387 sysctl_createv(clog, 0, NULL, NULL, 388 CTLFLAG_PERMANENT, 389 CTLTYPE_STRUCT, "file", 390 SYSCTL_DESCR("System open file table"), 391 sysctl_kern_file, 0, NULL, 0, 392 CTL_KERN, KERN_FILE, CTL_EOL); 393 #ifndef GPROF 394 sysctl_createv(clog, 0, NULL, NULL, 395 CTLFLAG_PERMANENT, 396 CTLTYPE_NODE, "profiling", 397 SYSCTL_DESCR("Profiling information (not available)"), 398 sysctl_notavail, 0, NULL, 0, 399 CTL_KERN, KERN_PROF, CTL_EOL); 400 #endif 401 sysctl_createv(clog, 0, NULL, NULL, 402 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 403 CTLTYPE_INT, "posix1version", 404 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 405 "with which the operating system attempts " 406 "to comply"), 407 NULL, _POSIX_VERSION, NULL, 0, 408 CTL_KERN, KERN_POSIX1, CTL_EOL); 409 sysctl_createv(clog, 0, NULL, NULL, 410 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 411 CTLTYPE_INT, "ngroups", 412 SYSCTL_DESCR("Maximum number of supplemental groups"), 413 NULL, NGROUPS_MAX, NULL, 0, 414 CTL_KERN, KERN_NGROUPS, CTL_EOL); 415 sysctl_createv(clog, 0, NULL, NULL, 416 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 417 CTLTYPE_INT, "job_control", 418 SYSCTL_DESCR("Whether job control is available"), 419 NULL, 1, NULL, 0, 420 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 421 sysctl_createv(clog, 0, NULL, NULL, 422 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 423 CTLTYPE_INT, "saved_ids", 424 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 425 "available"), NULL, 426 #ifdef _POSIX_SAVED_IDS 427 1, 428 #else /* _POSIX_SAVED_IDS */ 429 0, 430 #endif /* _POSIX_SAVED_IDS */ 431 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 432 sysctl_createv(clog, 0, NULL, NULL, 433 CTLFLAG_PERMANENT, 434 CTLTYPE_STRUCT, "boottime", 435 SYSCTL_DESCR("System boot time"), 436 NULL, 0, &boottime, sizeof(boottime), 437 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 438 sysctl_createv(clog, 0, NULL, NULL, 439 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 440 CTLTYPE_STRING, "domainname", 441 SYSCTL_DESCR("YP domain name"), 442 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 443 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 444 sysctl_createv(clog, 0, NULL, NULL, 445 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 446 CTLTYPE_INT, "maxpartitions", 447 SYSCTL_DESCR("Maximum number of partitions allowed per " 448 "disk"), 449 NULL, MAXPARTITIONS, NULL, 0, 450 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 451 sysctl_createv(clog, 0, NULL, NULL, 452 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 453 CTLTYPE_INT, "rawpartition", 454 SYSCTL_DESCR("Raw partition of a disk"), 455 NULL, RAW_PART, NULL, 0, 456 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 457 sysctl_createv(clog, 0, NULL, NULL, 458 CTLFLAG_PERMANENT, 459 CTLTYPE_STRUCT, "timex", NULL, 460 sysctl_notavail, 0, NULL, 0, 461 CTL_KERN, KERN_TIMEX, CTL_EOL); 462 sysctl_createv(clog, 0, NULL, NULL, 463 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 464 CTLTYPE_INT, "rtc_offset", 465 SYSCTL_DESCR("Offset of real time clock from UTC in " 466 "minutes"), 467 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 468 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 469 sysctl_createv(clog, 0, NULL, NULL, 470 CTLFLAG_PERMANENT, 471 CTLTYPE_STRING, "root_device", 472 SYSCTL_DESCR("Name of the root device"), 473 sysctl_root_device, 0, NULL, 0, 474 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 475 sysctl_createv(clog, 0, NULL, NULL, 476 CTLFLAG_PERMANENT, 477 CTLTYPE_INT, "msgbufsize", 478 SYSCTL_DESCR("Size of the kernel message buffer"), 479 sysctl_msgbuf, 0, NULL, 0, 480 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 481 sysctl_createv(clog, 0, NULL, NULL, 482 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 483 CTLTYPE_INT, "fsync", 484 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 485 "Synchronization Option is available on " 486 "this system"), 487 NULL, 1, NULL, 0, 488 CTL_KERN, KERN_FSYNC, CTL_EOL); 489 sysctl_createv(clog, 0, NULL, NULL, 490 CTLFLAG_PERMANENT, 491 CTLTYPE_NODE, "ipc", 492 SYSCTL_DESCR("SysV IPC options"), 493 NULL, 0, NULL, 0, 494 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 495 sysctl_createv(clog, 0, NULL, NULL, 496 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 497 CTLTYPE_INT, "sysvmsg", 498 SYSCTL_DESCR("System V style message support available"), 499 NULL, 500 #ifdef SYSVMSG 501 1, 502 #else /* SYSVMSG */ 503 0, 504 #endif /* SYSVMSG */ 505 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 506 sysctl_createv(clog, 0, NULL, NULL, 507 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 508 CTLTYPE_INT, "sysvsem", 509 SYSCTL_DESCR("System V style semaphore support " 510 "available"), NULL, 511 #ifdef SYSVSEM 512 1, 513 #else /* SYSVSEM */ 514 0, 515 #endif /* SYSVSEM */ 516 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 517 sysctl_createv(clog, 0, NULL, NULL, 518 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 519 CTLTYPE_INT, "sysvshm", 520 SYSCTL_DESCR("System V style shared memory support " 521 "available"), NULL, 522 #ifdef SYSVSHM 523 1, 524 #else /* SYSVSHM */ 525 0, 526 #endif /* SYSVSHM */ 527 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 528 sysctl_createv(clog, 0, NULL, NULL, 529 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 530 CTLTYPE_INT, "synchronized_io", 531 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 532 "I/O Option is available on this system"), 533 NULL, 1, NULL, 0, 534 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 535 sysctl_createv(clog, 0, NULL, NULL, 536 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 537 CTLTYPE_INT, "iov_max", 538 SYSCTL_DESCR("Maximum number of iovec structures per " 539 "process"), 540 NULL, IOV_MAX, NULL, 0, 541 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 542 sysctl_createv(clog, 0, NULL, NULL, 543 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 544 CTLTYPE_INT, "mapped_files", 545 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 546 "Files Option is available on this system"), 547 NULL, 1, NULL, 0, 548 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 549 sysctl_createv(clog, 0, NULL, NULL, 550 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 551 CTLTYPE_INT, "memlock", 552 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 553 "Locking Option is available on this " 554 "system"), 555 NULL, 1, NULL, 0, 556 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 557 sysctl_createv(clog, 0, NULL, NULL, 558 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 559 CTLTYPE_INT, "memlock_range", 560 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 561 "Locking Option is available on this " 562 "system"), 563 NULL, 1, NULL, 0, 564 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 565 sysctl_createv(clog, 0, NULL, NULL, 566 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 567 CTLTYPE_INT, "memory_protection", 568 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 569 "Protection Option is available on this " 570 "system"), 571 NULL, 1, NULL, 0, 572 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 573 sysctl_createv(clog, 0, NULL, NULL, 574 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 575 CTLTYPE_INT, "login_name_max", 576 SYSCTL_DESCR("Maximum login name length"), 577 NULL, LOGIN_NAME_MAX, NULL, 0, 578 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 579 sysctl_createv(clog, 0, NULL, NULL, 580 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 581 CTLTYPE_STRING, "defcorename", 582 SYSCTL_DESCR("Default core file name"), 583 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 584 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 585 sysctl_createv(clog, 0, NULL, NULL, 586 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 587 CTLTYPE_INT, "logsigexit", 588 SYSCTL_DESCR("Log process exit when caused by signals"), 589 NULL, 0, &kern_logsigexit, 0, 590 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 591 sysctl_createv(clog, 0, NULL, NULL, 592 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 593 CTLTYPE_INT, "fscale", 594 SYSCTL_DESCR("Kernel fixed-point scale factor"), 595 NULL, FSCALE, NULL, 0, 596 CTL_KERN, KERN_FSCALE, CTL_EOL); 597 sysctl_createv(clog, 0, NULL, NULL, 598 CTLFLAG_PERMANENT, 599 CTLTYPE_INT, "ccpu", 600 SYSCTL_DESCR("Scheduler exponential decay value"), 601 NULL, 0, &ccpu, 0, 602 CTL_KERN, KERN_CCPU, CTL_EOL); 603 sysctl_createv(clog, 0, NULL, NULL, 604 CTLFLAG_PERMANENT, 605 CTLTYPE_STRUCT, "cp_time", 606 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 607 sysctl_kern_cptime, 0, NULL, 0, 608 CTL_KERN, KERN_CP_TIME, CTL_EOL); 609 sysctl_createv(clog, 0, NULL, NULL, 610 CTLFLAG_PERMANENT, 611 CTLTYPE_INT, "msgbuf", 612 SYSCTL_DESCR("Kernel message buffer"), 613 sysctl_msgbuf, 0, NULL, 0, 614 CTL_KERN, KERN_MSGBUF, CTL_EOL); 615 sysctl_createv(clog, 0, NULL, NULL, 616 CTLFLAG_PERMANENT, 617 CTLTYPE_STRUCT, "consdev", 618 SYSCTL_DESCR("Console device"), 619 sysctl_consdev, 0, NULL, sizeof(dev_t), 620 CTL_KERN, KERN_CONSDEV, CTL_EOL); 621 #if NPTY > 0 622 sysctl_createv(clog, 0, NULL, NULL, 623 CTLFLAG_PERMANENT, 624 CTLTYPE_INT, "maxptys", 625 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 626 sysctl_kern_maxptys, 0, NULL, 0, 627 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 628 #endif /* NPTY > 0 */ 629 sysctl_createv(clog, 0, NULL, NULL, 630 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 631 CTLTYPE_INT, "maxphys", 632 SYSCTL_DESCR("Maximum raw I/O transfer size"), 633 NULL, MAXPHYS, NULL, 0, 634 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 635 sysctl_createv(clog, 0, NULL, NULL, 636 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 637 CTLTYPE_INT, "sbmax", 638 SYSCTL_DESCR("Maximum socket buffer size"), 639 sysctl_kern_sbmax, 0, NULL, 0, 640 CTL_KERN, KERN_SBMAX, CTL_EOL); 641 sysctl_createv(clog, 0, NULL, NULL, 642 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 643 CTLTYPE_INT, "monotonic_clock", 644 SYSCTL_DESCR("Implementation version of the POSIX " 645 "1003.1b Monotonic Clock Option"), 646 /* XXX _POSIX_VERSION */ 647 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 648 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 649 sysctl_createv(clog, 0, NULL, NULL, 650 CTLFLAG_PERMANENT, 651 CTLTYPE_INT, "urandom", 652 SYSCTL_DESCR("Random integer value"), 653 sysctl_kern_urnd, 0, NULL, 0, 654 CTL_KERN, KERN_URND, CTL_EOL); 655 sysctl_createv(clog, 0, NULL, NULL, 656 CTLFLAG_PERMANENT, 657 CTLTYPE_INT, "arandom", 658 SYSCTL_DESCR("n bytes of random data"), 659 sysctl_kern_arnd, 0, NULL, 0, 660 CTL_KERN, KERN_ARND, CTL_EOL); 661 sysctl_createv(clog, 0, NULL, NULL, 662 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 663 CTLTYPE_INT, "labelsector", 664 SYSCTL_DESCR("Sector number containing the disklabel"), 665 NULL, LABELSECTOR, NULL, 0, 666 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 667 sysctl_createv(clog, 0, NULL, NULL, 668 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 669 CTLTYPE_INT, "labeloffset", 670 SYSCTL_DESCR("Offset of the disklabel within the " 671 "sector"), 672 NULL, LABELOFFSET, NULL, 0, 673 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 674 sysctl_createv(clog, 0, NULL, NULL, 675 CTLFLAG_PERMANENT, 676 CTLTYPE_NODE, "lwp", 677 SYSCTL_DESCR("System-wide LWP information"), 678 sysctl_kern_lwp, 0, NULL, 0, 679 CTL_KERN, KERN_LWP, CTL_EOL); 680 sysctl_createv(clog, 0, NULL, NULL, 681 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 682 CTLTYPE_INT, "forkfsleep", 683 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 684 "to process limits"), 685 sysctl_kern_forkfsleep, 0, NULL, 0, 686 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 687 sysctl_createv(clog, 0, NULL, NULL, 688 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 689 CTLTYPE_INT, "posix_threads", 690 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 691 "Threads option to which the system " 692 "attempts to conform"), 693 /* XXX _POSIX_VERSION */ 694 NULL, _POSIX_THREADS, NULL, 0, 695 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 696 sysctl_createv(clog, 0, NULL, NULL, 697 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 698 CTLTYPE_INT, "posix_semaphores", 699 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 700 "Semaphores option to which the system " 701 "attempts to conform"), NULL, 702 #ifdef P1003_1B_SEMAPHORE 703 200112, 704 #else /* P1003_1B_SEMAPHORE */ 705 0, 706 #endif /* P1003_1B_SEMAPHORE */ 707 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 708 sysctl_createv(clog, 0, NULL, NULL, 709 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 710 CTLTYPE_INT, "posix_barriers", 711 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 712 "Barriers option to which the system " 713 "attempts to conform"), 714 /* XXX _POSIX_VERSION */ 715 NULL, _POSIX_BARRIERS, NULL, 0, 716 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 717 sysctl_createv(clog, 0, NULL, NULL, 718 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 719 CTLTYPE_INT, "posix_timers", 720 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 721 "Timers option to which the system " 722 "attempts to conform"), 723 /* XXX _POSIX_VERSION */ 724 NULL, _POSIX_TIMERS, NULL, 0, 725 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 726 sysctl_createv(clog, 0, NULL, NULL, 727 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 728 CTLTYPE_INT, "posix_spin_locks", 729 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 730 "Locks option to which the system attempts " 731 "to conform"), 732 /* XXX _POSIX_VERSION */ 733 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 734 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 735 sysctl_createv(clog, 0, NULL, NULL, 736 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 737 CTLTYPE_INT, "posix_reader_writer_locks", 738 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 739 "Read-Write Locks option to which the " 740 "system attempts to conform"), 741 /* XXX _POSIX_VERSION */ 742 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 743 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 744 sysctl_createv(clog, 0, NULL, NULL, 745 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 746 CTLTYPE_INT, "dump_on_panic", 747 SYSCTL_DESCR("Perform a crash dump on system panic"), 748 NULL, 0, &dumponpanic, 0, 749 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 750 #ifdef DIAGNOSTIC 751 sysctl_createv(clog, 0, NULL, NULL, 752 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 753 CTLTYPE_INT, "panic_now", 754 SYSCTL_DESCR("Trigger a panic"), 755 sysctl_kern_trigger_panic, 0, NULL, 0, 756 CTL_KERN, CTL_CREATE, CTL_EOL); 757 #endif 758 sysctl_createv(clog, 0, NULL, NULL, 759 CTLFLAG_PERMANENT, 760 CTLTYPE_INT, "root_partition", 761 SYSCTL_DESCR("Root partition on the root device"), 762 sysctl_kern_root_partition, 0, NULL, 0, 763 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 764 sysctl_createv(clog, 0, NULL, NULL, 765 CTLFLAG_PERMANENT, 766 CTLTYPE_STRUCT, "drivers", 767 SYSCTL_DESCR("List of all drivers with block and " 768 "character device numbers"), 769 sysctl_kern_drivers, 0, NULL, 0, 770 CTL_KERN, KERN_DRIVERS, CTL_EOL); 771 sysctl_createv(clog, 0, NULL, NULL, 772 CTLFLAG_PERMANENT, 773 CTLTYPE_STRUCT, "file2", 774 SYSCTL_DESCR("System open file table"), 775 sysctl_kern_file2, 0, NULL, 0, 776 CTL_KERN, KERN_FILE2, CTL_EOL); 777 sysctl_createv(clog, 0, NULL, NULL, 778 CTLFLAG_PERMANENT, 779 CTLTYPE_STRUCT, "cp_id", 780 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 781 sysctl_kern_cpid, 0, NULL, 0, 782 CTL_KERN, KERN_CP_ID, CTL_EOL); 783 sysctl_createv(clog, 0, NULL, &rnode, 784 CTLFLAG_PERMANENT, 785 CTLTYPE_NODE, "coredump", 786 SYSCTL_DESCR("Coredump settings."), 787 NULL, 0, NULL, 0, 788 CTL_KERN, CTL_CREATE, CTL_EOL); 789 sysctl_createv(clog, 0, &rnode, &rnode, 790 CTLFLAG_PERMANENT, 791 CTLTYPE_NODE, "setid", 792 SYSCTL_DESCR("Set-id processes' coredump settings."), 793 NULL, 0, NULL, 0, 794 CTL_CREATE, CTL_EOL); 795 sysctl_createv(clog, 0, &rnode, NULL, 796 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 797 CTLTYPE_INT, "dump", 798 SYSCTL_DESCR("Allow set-id processes to dump core."), 799 sysctl_security_setidcore, 0, &security_setidcore_dump, 800 sizeof(security_setidcore_dump), 801 CTL_CREATE, CTL_EOL); 802 sysctl_createv(clog, 0, &rnode, NULL, 803 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 804 CTLTYPE_STRING, "path", 805 SYSCTL_DESCR("Path pattern for set-id coredumps."), 806 sysctl_security_setidcorename, 0, 807 &security_setidcore_path, 808 sizeof(security_setidcore_path), 809 CTL_CREATE, CTL_EOL); 810 sysctl_createv(clog, 0, &rnode, NULL, 811 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 812 CTLTYPE_INT, "owner", 813 SYSCTL_DESCR("Owner id for set-id processes' cores."), 814 sysctl_security_setidcore, 0, &security_setidcore_owner, 815 0, 816 CTL_CREATE, CTL_EOL); 817 sysctl_createv(clog, 0, &rnode, NULL, 818 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 819 CTLTYPE_INT, "group", 820 SYSCTL_DESCR("Group id for set-id processes' cores."), 821 sysctl_security_setidcore, 0, &security_setidcore_group, 822 0, 823 CTL_CREATE, CTL_EOL); 824 sysctl_createv(clog, 0, &rnode, NULL, 825 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 826 CTLTYPE_INT, "mode", 827 SYSCTL_DESCR("Mode for set-id processes' cores."), 828 sysctl_security_setidcore, 0, &security_setidcore_mode, 829 0, 830 CTL_CREATE, CTL_EOL); 831 sysctl_createv(clog, 0, NULL, NULL, 832 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 833 CTLTYPE_INT, "no_sa_support", 834 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"), 835 NULL, 1, NULL, 0, 836 CTL_KERN, CTL_CREATE, CTL_EOL); 837 } 838 839 SYSCTL_SETUP(sysctl_kern_proc_setup, 840 "sysctl kern.proc/proc2/proc_args subtree setup") 841 { 842 843 sysctl_createv(clog, 0, NULL, NULL, 844 CTLFLAG_PERMANENT, 845 CTLTYPE_NODE, "kern", NULL, 846 NULL, 0, NULL, 0, 847 CTL_KERN, CTL_EOL); 848 849 sysctl_createv(clog, 0, NULL, NULL, 850 CTLFLAG_PERMANENT, 851 CTLTYPE_NODE, "proc", 852 SYSCTL_DESCR("System-wide process information"), 853 sysctl_doeproc, 0, NULL, 0, 854 CTL_KERN, KERN_PROC, CTL_EOL); 855 sysctl_createv(clog, 0, NULL, NULL, 856 CTLFLAG_PERMANENT, 857 CTLTYPE_NODE, "proc2", 858 SYSCTL_DESCR("Machine-independent process information"), 859 sysctl_doeproc, 0, NULL, 0, 860 CTL_KERN, KERN_PROC2, CTL_EOL); 861 sysctl_createv(clog, 0, NULL, NULL, 862 CTLFLAG_PERMANENT, 863 CTLTYPE_NODE, "proc_args", 864 SYSCTL_DESCR("Process argument information"), 865 sysctl_kern_proc_args, 0, NULL, 0, 866 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 867 868 /* 869 "nodes" under these: 870 871 KERN_PROC_ALL 872 KERN_PROC_PID pid 873 KERN_PROC_PGRP pgrp 874 KERN_PROC_SESSION sess 875 KERN_PROC_TTY tty 876 KERN_PROC_UID uid 877 KERN_PROC_RUID uid 878 KERN_PROC_GID gid 879 KERN_PROC_RGID gid 880 881 all in all, probably not worth the effort... 882 */ 883 } 884 885 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 886 { 887 u_int u; 888 u_quad_t q; 889 890 sysctl_createv(clog, 0, NULL, NULL, 891 CTLFLAG_PERMANENT, 892 CTLTYPE_NODE, "hw", NULL, 893 NULL, 0, NULL, 0, 894 CTL_HW, CTL_EOL); 895 896 sysctl_createv(clog, 0, NULL, NULL, 897 CTLFLAG_PERMANENT, 898 CTLTYPE_STRING, "machine", 899 SYSCTL_DESCR("Machine class"), 900 NULL, 0, machine, 0, 901 CTL_HW, HW_MACHINE, CTL_EOL); 902 sysctl_createv(clog, 0, NULL, NULL, 903 CTLFLAG_PERMANENT, 904 CTLTYPE_STRING, "model", 905 SYSCTL_DESCR("Machine model"), 906 NULL, 0, cpu_model, 0, 907 CTL_HW, HW_MODEL, CTL_EOL); 908 sysctl_createv(clog, 0, NULL, NULL, 909 CTLFLAG_PERMANENT, 910 CTLTYPE_INT, "ncpu", 911 SYSCTL_DESCR("Number of CPUs configured"), 912 NULL, 0, &ncpu, 0, 913 CTL_HW, HW_NCPU, CTL_EOL); 914 sysctl_createv(clog, 0, NULL, NULL, 915 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 916 CTLTYPE_INT, "byteorder", 917 SYSCTL_DESCR("System byte order"), 918 NULL, BYTE_ORDER, NULL, 0, 919 CTL_HW, HW_BYTEORDER, CTL_EOL); 920 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 921 UINT_MAX : physmem * PAGE_SIZE; 922 sysctl_createv(clog, 0, NULL, NULL, 923 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 924 CTLTYPE_INT, "physmem", 925 SYSCTL_DESCR("Bytes of physical memory"), 926 NULL, u, NULL, 0, 927 CTL_HW, HW_PHYSMEM, CTL_EOL); 928 sysctl_createv(clog, 0, NULL, NULL, 929 CTLFLAG_PERMANENT, 930 CTLTYPE_INT, "usermem", 931 SYSCTL_DESCR("Bytes of non-kernel memory"), 932 sysctl_hw_usermem, 0, NULL, 0, 933 CTL_HW, HW_USERMEM, CTL_EOL); 934 sysctl_createv(clog, 0, NULL, NULL, 935 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 936 CTLTYPE_INT, "pagesize", 937 SYSCTL_DESCR("Software page size"), 938 NULL, PAGE_SIZE, NULL, 0, 939 CTL_HW, HW_PAGESIZE, CTL_EOL); 940 sysctl_createv(clog, 0, NULL, NULL, 941 CTLFLAG_PERMANENT, 942 CTLTYPE_STRING, "machine_arch", 943 SYSCTL_DESCR("Machine CPU class"), 944 NULL, 0, machine_arch, 0, 945 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 946 sysctl_createv(clog, 0, NULL, NULL, 947 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 948 CTLTYPE_INT, "alignbytes", 949 SYSCTL_DESCR("Alignment constraint for all possible " 950 "data types"), 951 NULL, ALIGNBYTES, NULL, 0, 952 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 953 sysctl_createv(clog, 0, NULL, NULL, 954 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 955 CTLTYPE_STRING, "cnmagic", 956 SYSCTL_DESCR("Console magic key sequence"), 957 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 958 CTL_HW, HW_CNMAGIC, CTL_EOL); 959 q = (u_quad_t)physmem * PAGE_SIZE; 960 sysctl_createv(clog, 0, NULL, NULL, 961 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 962 CTLTYPE_QUAD, "physmem64", 963 SYSCTL_DESCR("Bytes of physical memory"), 964 NULL, q, NULL, 0, 965 CTL_HW, HW_PHYSMEM64, CTL_EOL); 966 sysctl_createv(clog, 0, NULL, NULL, 967 CTLFLAG_PERMANENT, 968 CTLTYPE_QUAD, "usermem64", 969 SYSCTL_DESCR("Bytes of non-kernel memory"), 970 sysctl_hw_usermem, 0, NULL, 0, 971 CTL_HW, HW_USERMEM64, CTL_EOL); 972 sysctl_createv(clog, 0, NULL, NULL, 973 CTLFLAG_PERMANENT, 974 CTLTYPE_INT, "ncpuonline", 975 SYSCTL_DESCR("Number of CPUs online"), 976 NULL, 0, &ncpuonline, 0, 977 CTL_HW, HW_NCPUONLINE, CTL_EOL); 978 } 979 980 #ifdef DEBUG 981 /* 982 * Debugging related system variables. 983 */ 984 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 985 struct ctldebug debug5, debug6, debug7, debug8, debug9; 986 struct ctldebug debug10, debug11, debug12, debug13, debug14; 987 struct ctldebug debug15, debug16, debug17, debug18, debug19; 988 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 989 &debug0, &debug1, &debug2, &debug3, &debug4, 990 &debug5, &debug6, &debug7, &debug8, &debug9, 991 &debug10, &debug11, &debug12, &debug13, &debug14, 992 &debug15, &debug16, &debug17, &debug18, &debug19, 993 }; 994 995 /* 996 * this setup routine is a replacement for debug_sysctl() 997 * 998 * note that it creates several nodes per defined debug variable 999 */ 1000 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1001 { 1002 struct ctldebug *cdp; 1003 char nodename[20]; 1004 int i; 1005 1006 /* 1007 * two ways here: 1008 * 1009 * the "old" way (debug.name -> value) which was emulated by 1010 * the sysctl(8) binary 1011 * 1012 * the new way, which the sysctl(8) binary was actually using 1013 1014 node debug 1015 node debug.0 1016 string debug.0.name 1017 int debug.0.value 1018 int debug.name 1019 1020 */ 1021 1022 sysctl_createv(clog, 0, NULL, NULL, 1023 CTLFLAG_PERMANENT, 1024 CTLTYPE_NODE, "debug", NULL, 1025 NULL, 0, NULL, 0, 1026 CTL_DEBUG, CTL_EOL); 1027 1028 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1029 cdp = debugvars[i]; 1030 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1031 continue; 1032 1033 snprintf(nodename, sizeof(nodename), "debug%d", i); 1034 sysctl_createv(clog, 0, NULL, NULL, 1035 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1036 CTLTYPE_NODE, nodename, NULL, 1037 NULL, 0, NULL, 0, 1038 CTL_DEBUG, i, CTL_EOL); 1039 sysctl_createv(clog, 0, NULL, NULL, 1040 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1041 CTLTYPE_STRING, "name", NULL, 1042 /*XXXUNCONST*/ 1043 NULL, 0, __UNCONST(cdp->debugname), 0, 1044 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1045 sysctl_createv(clog, 0, NULL, NULL, 1046 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1047 CTLTYPE_INT, "value", NULL, 1048 NULL, 0, cdp->debugvar, 0, 1049 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1050 sysctl_createv(clog, 0, NULL, NULL, 1051 CTLFLAG_PERMANENT, 1052 CTLTYPE_INT, cdp->debugname, NULL, 1053 NULL, 0, cdp->debugvar, 0, 1054 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1055 } 1056 } 1057 #endif /* DEBUG */ 1058 1059 /* 1060 * ******************************************************************** 1061 * section 2: private node-specific helper routines. 1062 * ******************************************************************** 1063 */ 1064 1065 #ifdef DIAGNOSTIC 1066 static int 1067 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1068 { 1069 int newtrig, error; 1070 struct sysctlnode node; 1071 1072 newtrig = 0; 1073 node = *rnode; 1074 node.sysctl_data = &newtrig; 1075 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1076 if (error || newp == NULL) 1077 return (error); 1078 1079 if (newtrig != 0) 1080 panic("Panic triggered"); 1081 1082 return (error); 1083 } 1084 #endif 1085 1086 /* 1087 * sysctl helper routine for kern.maxvnodes. Drain vnodes if 1088 * new value is lower than desiredvnodes and then calls reinit 1089 * routines that needs to adjust to the new value. 1090 */ 1091 static int 1092 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1093 { 1094 int error, new_vnodes, old_vnodes; 1095 struct sysctlnode node; 1096 1097 new_vnodes = desiredvnodes; 1098 node = *rnode; 1099 node.sysctl_data = &new_vnodes; 1100 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1101 if (error || newp == NULL) 1102 return (error); 1103 1104 old_vnodes = desiredvnodes; 1105 desiredvnodes = new_vnodes; 1106 if (new_vnodes < old_vnodes) { 1107 error = vfs_drainvnodes(new_vnodes, l); 1108 if (error) { 1109 desiredvnodes = old_vnodes; 1110 return (error); 1111 } 1112 } 1113 vfs_reinit(); 1114 nchreinit(); 1115 1116 return (0); 1117 } 1118 1119 /* 1120 * sysctl helper routine for rtc_offset - set time after changes 1121 */ 1122 static int 1123 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1124 { 1125 struct timespec ts, delta; 1126 int error, new_rtc_offset; 1127 struct sysctlnode node; 1128 1129 new_rtc_offset = rtc_offset; 1130 node = *rnode; 1131 node.sysctl_data = &new_rtc_offset; 1132 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1133 if (error || newp == NULL) 1134 return (error); 1135 1136 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1137 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1138 KAUTH_ARG(new_rtc_offset), NULL, NULL)) 1139 return (EPERM); 1140 if (rtc_offset == new_rtc_offset) 1141 return (0); 1142 1143 /* if we change the offset, adjust the time */ 1144 nanotime(&ts); 1145 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1146 delta.tv_nsec = 0; 1147 timespecadd(&ts, &delta, &ts); 1148 rtc_offset = new_rtc_offset; 1149 return (settime(l->l_proc, &ts)); 1150 } 1151 1152 /* 1153 * sysctl helper routine for kern.maxproc. Ensures that the new 1154 * values are not too low or too high. 1155 */ 1156 static int 1157 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1158 { 1159 int error, nmaxproc; 1160 struct sysctlnode node; 1161 1162 nmaxproc = maxproc; 1163 node = *rnode; 1164 node.sysctl_data = &nmaxproc; 1165 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1166 if (error || newp == NULL) 1167 return (error); 1168 1169 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1170 return (EINVAL); 1171 #ifdef __HAVE_CPU_MAXPROC 1172 if (nmaxproc > cpu_maxproc()) 1173 return (EINVAL); 1174 #endif 1175 maxproc = nmaxproc; 1176 1177 return (0); 1178 } 1179 1180 /* 1181 * sysctl helper function for kern.hostid. The hostid is a long, but 1182 * we export it as an int, so we need to give it a little help. 1183 */ 1184 static int 1185 sysctl_kern_hostid(SYSCTLFN_ARGS) 1186 { 1187 int error, inthostid; 1188 struct sysctlnode node; 1189 1190 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1191 node = *rnode; 1192 node.sysctl_data = &inthostid; 1193 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1194 if (error || newp == NULL) 1195 return (error); 1196 1197 hostid = (unsigned)inthostid; 1198 1199 return (0); 1200 } 1201 1202 /* 1203 * sysctl helper function for kern.hostname and kern.domainnname. 1204 * resets the relevant recorded length when the underlying name is 1205 * changed. 1206 */ 1207 static int 1208 sysctl_setlen(SYSCTLFN_ARGS) 1209 { 1210 int error; 1211 1212 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1213 if (error || newp == NULL) 1214 return (error); 1215 1216 switch (rnode->sysctl_num) { 1217 case KERN_HOSTNAME: 1218 hostnamelen = strlen((const char*)rnode->sysctl_data); 1219 break; 1220 case KERN_DOMAINNAME: 1221 domainnamelen = strlen((const char*)rnode->sysctl_data); 1222 break; 1223 } 1224 1225 return (0); 1226 } 1227 1228 /* 1229 * sysctl helper routine for kern.clockrate. Assembles a struct on 1230 * the fly to be returned to the caller. 1231 */ 1232 static int 1233 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1234 { 1235 struct clockinfo clkinfo; 1236 struct sysctlnode node; 1237 1238 clkinfo.tick = tick; 1239 clkinfo.tickadj = tickadj; 1240 clkinfo.hz = hz; 1241 clkinfo.profhz = profhz; 1242 clkinfo.stathz = stathz ? stathz : hz; 1243 1244 node = *rnode; 1245 node.sysctl_data = &clkinfo; 1246 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1247 } 1248 1249 1250 /* 1251 * sysctl helper routine for kern.file pseudo-subtree. 1252 */ 1253 static int 1254 sysctl_kern_file(SYSCTLFN_ARGS) 1255 { 1256 int error; 1257 size_t buflen; 1258 struct file *fp, *dp, *np, fbuf; 1259 char *start, *where; 1260 1261 start = where = oldp; 1262 buflen = *oldlenp; 1263 dp = NULL; 1264 1265 if (where == NULL) { 1266 /* 1267 * overestimate by 10 files 1268 */ 1269 *oldlenp = sizeof(filehead) + (nfiles + 10) * 1270 sizeof(struct file); 1271 return (0); 1272 } 1273 1274 /* 1275 * first dcopyout filehead 1276 */ 1277 if (buflen < sizeof(filehead)) { 1278 *oldlenp = 0; 1279 return (0); 1280 } 1281 sysctl_unlock(); 1282 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1283 if (error) { 1284 sysctl_relock(); 1285 return error; 1286 } 1287 buflen -= sizeof(filehead); 1288 where += sizeof(filehead); 1289 1290 /* 1291 * allocate dummy file descriptor to make position in list 1292 */ 1293 if ((dp = fgetdummy()) == NULL) { 1294 sysctl_relock(); 1295 return ENOMEM; 1296 } 1297 1298 /* 1299 * followed by an array of file structures 1300 */ 1301 mutex_enter(&filelist_lock); 1302 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1303 np = LIST_NEXT(fp, f_list); 1304 mutex_enter(&fp->f_lock); 1305 if (fp->f_count == 0) { 1306 mutex_exit(&fp->f_lock); 1307 continue; 1308 } 1309 /* 1310 * XXX Need to prevent that from being an alternative way 1311 * XXX to getting process information. 1312 */ 1313 if (kauth_authorize_generic(l->l_cred, 1314 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1315 mutex_exit(&fp->f_lock); 1316 continue; 1317 } 1318 if (buflen < sizeof(struct file)) { 1319 *oldlenp = where - start; 1320 mutex_exit(&fp->f_lock); 1321 error = ENOMEM; 1322 break; 1323 } 1324 memcpy(&fbuf, fp, sizeof(fbuf)); 1325 LIST_INSERT_AFTER(fp, dp, f_list); 1326 mutex_exit(&fp->f_lock); 1327 mutex_exit(&filelist_lock); 1328 error = dcopyout(l, &fbuf, where, sizeof(fbuf)); 1329 if (error) { 1330 mutex_enter(&filelist_lock); 1331 LIST_REMOVE(dp, f_list); 1332 break; 1333 } 1334 buflen -= sizeof(struct file); 1335 where += sizeof(struct file); 1336 mutex_enter(&filelist_lock); 1337 np = LIST_NEXT(dp, f_list); 1338 LIST_REMOVE(dp, f_list); 1339 } 1340 mutex_exit(&filelist_lock); 1341 *oldlenp = where - start; 1342 if (dp != NULL) 1343 fputdummy(dp); 1344 sysctl_relock(); 1345 return (error); 1346 } 1347 1348 /* 1349 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 1350 * former it merely checks the message buffer is set up. For the latter, 1351 * it also copies out the data if necessary. 1352 */ 1353 static int 1354 sysctl_msgbuf(SYSCTLFN_ARGS) 1355 { 1356 char *where = oldp; 1357 size_t len, maxlen; 1358 long beg, end; 1359 extern kmutex_t log_lock; 1360 int error; 1361 1362 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1363 msgbufenabled = 0; 1364 return (ENXIO); 1365 } 1366 1367 switch (rnode->sysctl_num) { 1368 case KERN_MSGBUFSIZE: { 1369 struct sysctlnode node = *rnode; 1370 int msg_bufs = (int)msgbufp->msg_bufs; 1371 node.sysctl_data = &msg_bufs; 1372 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1373 } 1374 case KERN_MSGBUF: 1375 break; 1376 default: 1377 return (EOPNOTSUPP); 1378 } 1379 1380 if (newp != NULL) 1381 return (EPERM); 1382 1383 if (oldp == NULL) { 1384 /* always return full buffer size */ 1385 *oldlenp = msgbufp->msg_bufs; 1386 return (0); 1387 } 1388 1389 sysctl_unlock(); 1390 1391 /* 1392 * First, copy from the write pointer to the end of 1393 * message buffer. 1394 */ 1395 error = 0; 1396 mutex_spin_enter(&log_lock); 1397 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1398 beg = msgbufp->msg_bufx; 1399 end = msgbufp->msg_bufs; 1400 mutex_spin_exit(&log_lock); 1401 1402 while (maxlen > 0) { 1403 len = MIN(end - beg, maxlen); 1404 if (len == 0) 1405 break; 1406 /* XXX unlocked, but hardly matters. */ 1407 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1408 if (error) 1409 break; 1410 where += len; 1411 maxlen -= len; 1412 1413 /* 1414 * ... then, copy from the beginning of message buffer to 1415 * the write pointer. 1416 */ 1417 beg = 0; 1418 end = msgbufp->msg_bufx; 1419 } 1420 1421 sysctl_relock(); 1422 return (error); 1423 } 1424 1425 /* 1426 * sysctl helper routine for kern.defcorename. In the case of a new 1427 * string being assigned, check that it's not a zero-length string. 1428 * (XXX the check in -current doesn't work, but do we really care?) 1429 */ 1430 static int 1431 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1432 { 1433 int error; 1434 char *newcorename; 1435 struct sysctlnode node; 1436 1437 newcorename = PNBUF_GET(); 1438 node = *rnode; 1439 node.sysctl_data = &newcorename[0]; 1440 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1441 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1442 if (error || newp == NULL) { 1443 goto done; 1444 } 1445 1446 /* 1447 * when sysctl_lookup() deals with a string, it's guaranteed 1448 * to come back nul terminated. So there. :) 1449 */ 1450 if (strlen(newcorename) == 0) { 1451 error = EINVAL; 1452 } else { 1453 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1454 error = 0; 1455 } 1456 done: 1457 PNBUF_PUT(newcorename); 1458 return error; 1459 } 1460 1461 /* 1462 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1463 * across all cpus. 1464 */ 1465 static int 1466 sysctl_kern_cptime(SYSCTLFN_ARGS) 1467 { 1468 struct sysctlnode node = *rnode; 1469 uint64_t *cp_time = NULL; 1470 int error, n = ncpu, i; 1471 struct cpu_info *ci; 1472 CPU_INFO_ITERATOR cii; 1473 1474 /* 1475 * if you specifically pass a buffer that is the size of the 1476 * sum, or if you are probing for the size, you get the "sum" 1477 * of cp_time (and the size thereof) across all processors. 1478 * 1479 * alternately, you can pass an additional mib number and get 1480 * cp_time for that particular processor. 1481 */ 1482 switch (namelen) { 1483 case 0: 1484 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1485 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1486 n = -1; /* SUM */ 1487 } 1488 else { 1489 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1490 n = -2; /* ALL */ 1491 } 1492 break; 1493 case 1: 1494 if (name[0] < 0 || name[0] >= n) 1495 return (ENOENT); /* ENOSUCHPROCESSOR */ 1496 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1497 n = name[0]; 1498 /* 1499 * adjust these so that sysctl_lookup() will be happy 1500 */ 1501 name++; 1502 namelen--; 1503 break; 1504 default: 1505 return (EINVAL); 1506 } 1507 1508 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); 1509 if (cp_time == NULL) 1510 return (ENOMEM); 1511 node.sysctl_data = cp_time; 1512 memset(cp_time, 0, node.sysctl_size); 1513 1514 for (CPU_INFO_FOREACH(cii, ci)) { 1515 if (n <= 0) { 1516 for (i = 0; i < CPUSTATES; i++) { 1517 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1518 } 1519 } 1520 /* 1521 * if a specific processor was requested and we just 1522 * did it, we're done here 1523 */ 1524 if (n == 0) 1525 break; 1526 /* 1527 * if doing "all", skip to next cp_time set for next processor 1528 */ 1529 if (n == -2) 1530 cp_time += CPUSTATES; 1531 /* 1532 * if we're doing a specific processor, we're one 1533 * processor closer 1534 */ 1535 if (n > 0) 1536 n--; 1537 } 1538 1539 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1540 kmem_free(node.sysctl_data, node.sysctl_size); 1541 return (error); 1542 } 1543 1544 #if NPTY > 0 1545 /* 1546 * sysctl helper routine for kern.maxptys. Ensures that any new value 1547 * is acceptable to the pty subsystem. 1548 */ 1549 static int 1550 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1551 { 1552 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1553 int error, xmax; 1554 struct sysctlnode node; 1555 1556 /* get current value of maxptys */ 1557 xmax = pty_maxptys(0, 0); 1558 1559 node = *rnode; 1560 node.sysctl_data = &xmax; 1561 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1562 if (error || newp == NULL) 1563 return (error); 1564 1565 if (xmax != pty_maxptys(xmax, 1)) 1566 return (EINVAL); 1567 1568 return (0); 1569 } 1570 #endif /* NPTY > 0 */ 1571 1572 /* 1573 * sysctl helper routine for kern.sbmax. Basically just ensures that 1574 * any new value is not too small. 1575 */ 1576 static int 1577 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1578 { 1579 int error, new_sbmax; 1580 struct sysctlnode node; 1581 1582 new_sbmax = sb_max; 1583 node = *rnode; 1584 node.sysctl_data = &new_sbmax; 1585 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1586 if (error || newp == NULL) 1587 return (error); 1588 1589 KERNEL_LOCK(1, NULL); 1590 error = sb_max_set(new_sbmax); 1591 KERNEL_UNLOCK_ONE(NULL); 1592 1593 return (error); 1594 } 1595 1596 /* 1597 * sysctl helper routine for kern.urandom node. Picks a random number 1598 * for you. 1599 */ 1600 static int 1601 sysctl_kern_urnd(SYSCTLFN_ARGS) 1602 { 1603 #if NRND > 0 1604 int v, rv; 1605 1606 KERNEL_LOCK(1, NULL); 1607 rv = rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY); 1608 KERNEL_UNLOCK_ONE(NULL); 1609 if (rv == sizeof(v)) { 1610 struct sysctlnode node = *rnode; 1611 node.sysctl_data = &v; 1612 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1613 } 1614 else 1615 return (EIO); /*XXX*/ 1616 #else 1617 return (EOPNOTSUPP); 1618 #endif 1619 } 1620 1621 /* 1622 * sysctl helper routine for kern.arandom node. Picks a random number 1623 * for you. 1624 */ 1625 static int 1626 sysctl_kern_arnd(SYSCTLFN_ARGS) 1627 { 1628 #if NRND > 0 1629 int error; 1630 void *v; 1631 struct sysctlnode node = *rnode; 1632 1633 if (*oldlenp == 0) 1634 return 0; 1635 if (*oldlenp > 8192) 1636 return E2BIG; 1637 1638 v = kmem_alloc(*oldlenp, KM_SLEEP); 1639 arc4randbytes(v, *oldlenp); 1640 node.sysctl_data = v; 1641 node.sysctl_size = *oldlenp; 1642 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1643 kmem_free(v, *oldlenp); 1644 return error; 1645 #else 1646 return (EOPNOTSUPP); 1647 #endif 1648 } 1649 /* 1650 * sysctl helper routine to do kern.lwp.* work. 1651 */ 1652 static int 1653 sysctl_kern_lwp(SYSCTLFN_ARGS) 1654 { 1655 struct kinfo_lwp klwp; 1656 struct proc *p; 1657 struct lwp *l2, *l3; 1658 char *where, *dp; 1659 int pid, elem_size, elem_count; 1660 int buflen, needed, error; 1661 bool gotit; 1662 1663 if (namelen == 1 && name[0] == CTL_QUERY) 1664 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1665 1666 dp = where = oldp; 1667 buflen = where != NULL ? *oldlenp : 0; 1668 error = needed = 0; 1669 1670 if (newp != NULL || namelen != 3) 1671 return (EINVAL); 1672 pid = name[0]; 1673 elem_size = name[1]; 1674 elem_count = name[2]; 1675 1676 sysctl_unlock(); 1677 if (pid == -1) { 1678 mutex_enter(proc_lock); 1679 LIST_FOREACH(p, &allproc, p_list) { 1680 /* Grab a hold on the process. */ 1681 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 1682 continue; 1683 } 1684 mutex_exit(proc_lock); 1685 1686 mutex_enter(p->p_lock); 1687 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1688 if (buflen >= elem_size && elem_count > 0) { 1689 lwp_lock(l2); 1690 fill_lwp(l2, &klwp); 1691 lwp_unlock(l2); 1692 mutex_exit(p->p_lock); 1693 1694 /* 1695 * Copy out elem_size, but not 1696 * larger than the size of a 1697 * struct kinfo_proc2. 1698 */ 1699 error = dcopyout(l, &klwp, dp, 1700 min(sizeof(klwp), elem_size)); 1701 if (error) { 1702 rw_exit(&p->p_reflock); 1703 goto cleanup; 1704 } 1705 mutex_enter(p->p_lock); 1706 LIST_FOREACH(l3, &p->p_lwps, 1707 l_sibling) { 1708 if (l2 == l3) 1709 break; 1710 } 1711 if (l3 == NULL) { 1712 mutex_exit(p->p_lock); 1713 rw_exit(&p->p_reflock); 1714 error = EAGAIN; 1715 goto cleanup; 1716 } 1717 dp += elem_size; 1718 buflen -= elem_size; 1719 elem_count--; 1720 } 1721 needed += elem_size; 1722 } 1723 mutex_exit(p->p_lock); 1724 1725 /* Drop reference to process. */ 1726 mutex_enter(proc_lock); 1727 rw_exit(&p->p_reflock); 1728 } 1729 mutex_exit(proc_lock); 1730 } else { 1731 mutex_enter(proc_lock); 1732 p = p_find(pid, PFIND_LOCKED); 1733 if (p == NULL) { 1734 error = ESRCH; 1735 mutex_exit(proc_lock); 1736 goto cleanup; 1737 } 1738 /* Grab a hold on the process. */ 1739 gotit = rw_tryenter(&p->p_reflock, RW_READER); 1740 mutex_exit(proc_lock); 1741 if (!gotit) { 1742 error = ESRCH; 1743 goto cleanup; 1744 } 1745 1746 mutex_enter(p->p_lock); 1747 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1748 if (buflen >= elem_size && elem_count > 0) { 1749 lwp_lock(l2); 1750 fill_lwp(l2, &klwp); 1751 lwp_unlock(l2); 1752 mutex_exit(p->p_lock); 1753 /* 1754 * Copy out elem_size, but not larger than 1755 * the size of a struct kinfo_proc2. 1756 */ 1757 error = dcopyout(l, &klwp, dp, 1758 min(sizeof(klwp), elem_size)); 1759 if (error) { 1760 rw_exit(&p->p_reflock); 1761 goto cleanup; 1762 } 1763 mutex_enter(p->p_lock); 1764 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1765 if (l2 == l3) 1766 break; 1767 } 1768 if (l3 == NULL) { 1769 mutex_exit(p->p_lock); 1770 rw_exit(&p->p_reflock); 1771 error = EAGAIN; 1772 goto cleanup; 1773 } 1774 dp += elem_size; 1775 buflen -= elem_size; 1776 elem_count--; 1777 } 1778 needed += elem_size; 1779 } 1780 mutex_exit(p->p_lock); 1781 1782 /* Drop reference to process. */ 1783 rw_exit(&p->p_reflock); 1784 } 1785 1786 if (where != NULL) { 1787 *oldlenp = dp - where; 1788 if (needed > *oldlenp) { 1789 sysctl_relock(); 1790 return (ENOMEM); 1791 } 1792 } else { 1793 needed += KERN_LWPSLOP; 1794 *oldlenp = needed; 1795 } 1796 error = 0; 1797 cleanup: 1798 sysctl_relock(); 1799 return (error); 1800 } 1801 1802 /* 1803 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1804 * given value is not too large or two small, and is at least one 1805 * timer tick if not zero. 1806 */ 1807 static int 1808 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1809 { 1810 /* userland sees value in ms, internally is in ticks */ 1811 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1812 int error, timo, lsleep; 1813 struct sysctlnode node; 1814 1815 lsleep = forkfsleep * 1000 / hz; 1816 node = *rnode; 1817 node.sysctl_data = &lsleep; 1818 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1819 if (error || newp == NULL) 1820 return (error); 1821 1822 /* refuse negative values, and overly 'long time' */ 1823 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1824 return (EINVAL); 1825 1826 timo = mstohz(lsleep); 1827 1828 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1829 if (lsleep != 0 && timo == 0) 1830 forkfsleep = 1; 1831 else 1832 forkfsleep = timo; 1833 1834 return (0); 1835 } 1836 1837 /* 1838 * sysctl helper routine for kern.root_partition 1839 */ 1840 static int 1841 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1842 { 1843 int rootpart = DISKPART(rootdev); 1844 struct sysctlnode node = *rnode; 1845 1846 node.sysctl_data = &rootpart; 1847 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1848 } 1849 1850 /* 1851 * sysctl helper function for kern.drivers 1852 */ 1853 static int 1854 sysctl_kern_drivers(SYSCTLFN_ARGS) 1855 { 1856 int error; 1857 size_t buflen; 1858 struct kinfo_drivers kd; 1859 char *start, *where; 1860 const char *dname; 1861 int i; 1862 extern struct devsw_conv *devsw_conv; 1863 extern int max_devsw_convs; 1864 extern kmutex_t devsw_lock; 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(&devsw_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(&devsw_lock); 1895 error = dcopyout(l, &kd, where, sizeof kd); 1896 mutex_enter(&devsw_lock); 1897 if (error != 0) 1898 break; 1899 buflen -= sizeof kd; 1900 where += sizeof kd; 1901 } 1902 mutex_exit(&devsw_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] = ci->ci_cpuid; 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 2941 ki->p_nlwps = p->p_nlwps; 2942 ki->p_realflag = ki->p_flag; 2943 2944 if (p->p_stat != SIDL && !P_ZOMBIE(p) && !zombie) { 2945 vm = p->p_vmspace; 2946 ki->p_vm_rssize = vm_resident_count(vm); 2947 ki->p_vm_tsize = vm->vm_tsize; 2948 ki->p_vm_dsize = vm->vm_dsize; 2949 ki->p_vm_ssize = vm->vm_ssize; 2950 2951 /* Pick a "representative" LWP */ 2952 l = proc_representative_lwp(p, &tmp, 1); 2953 lwp_lock(l); 2954 ki->p_nrlwps = tmp; 2955 ki->p_forw = 0; 2956 ki->p_back = 0; 2957 ki->p_addr = PTRTOUINT64(l->l_addr); 2958 ki->p_stat = l->l_stat; 2959 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2960 ki->p_swtime = l->l_swtime; 2961 ki->p_slptime = l->l_slptime; 2962 if (l->l_stat == LSONPROC) 2963 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2964 else 2965 ki->p_schedflags = 0; 2966 ki->p_holdcnt = l->l_holdcnt; 2967 ki->p_priority = lwp_eprio(l); 2968 ki->p_usrpri = l->l_priority; 2969 if (l->l_wchan) 2970 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2971 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2972 ki->p_cpuid = l->l_cpu->ci_cpuid; 2973 lwp_unlock(l); 2974 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2975 /* This is hardly correct, but... */ 2976 sigplusset(&l->l_sigpend.sp_set, &ss1); 2977 sigplusset(&l->l_sigmask, &ss2); 2978 ki->p_cpticks += l->l_cpticks; 2979 ki->p_pctcpu += l->l_pctcpu; 2980 ki->p_estcpu += l->l_estcpu; 2981 } 2982 } 2983 sigplusset(&p->p_sigpend.sp_set, &ss2); 2984 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2985 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2986 2987 if (p->p_session != NULL) { 2988 ki->p_sid = p->p_session->s_sid; 2989 ki->p__pgid = p->p_pgrp->pg_id; 2990 if (p->p_session->s_ttyvp) 2991 ki->p_eflag |= EPROC_CTTY; 2992 if (SESS_LEADER(p)) 2993 ki->p_eflag |= EPROC_SLEADER; 2994 strncpy(ki->p_login, p->p_session->s_login, 2995 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2996 ki->p_jobc = p->p_pgrp->pg_jobc; 2997 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2998 ki->p_tdev = tp->t_dev; 2999 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3000 ki->p_tsess = PTRTOUINT64(tp->t_session); 3001 } else { 3002 ki->p_tdev = NODEV; 3003 } 3004 } 3005 3006 if (!P_ZOMBIE(p) && !zombie) { 3007 ki->p_uvalid = 1; 3008 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 3009 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 3010 3011 calcru(p, &ut, &st, NULL, &rt); 3012 ki->p_rtime_sec = rt.tv_sec; 3013 ki->p_rtime_usec = rt.tv_usec; 3014 ki->p_uutime_sec = ut.tv_sec; 3015 ki->p_uutime_usec = ut.tv_usec; 3016 ki->p_ustime_sec = st.tv_sec; 3017 ki->p_ustime_usec = st.tv_usec; 3018 3019 memcpy(&ru, &p->p_stats->p_ru, sizeof(ru)); 3020 ki->p_uru_nvcsw = 0; 3021 ki->p_uru_nivcsw = 0; 3022 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 3023 ki->p_uru_nvcsw += (l2->l_ncsw - l2->l_nivcsw); 3024 ki->p_uru_nivcsw += l2->l_nivcsw; 3025 ruadd(&ru, &l2->l_ru); 3026 } 3027 ki->p_uru_maxrss = ru.ru_maxrss; 3028 ki->p_uru_ixrss = ru.ru_ixrss; 3029 ki->p_uru_idrss = ru.ru_idrss; 3030 ki->p_uru_isrss = ru.ru_isrss; 3031 ki->p_uru_minflt = ru.ru_minflt; 3032 ki->p_uru_majflt = ru.ru_majflt; 3033 ki->p_uru_nswap = ru.ru_nswap; 3034 ki->p_uru_inblock = ru.ru_inblock; 3035 ki->p_uru_oublock = ru.ru_oublock; 3036 ki->p_uru_msgsnd = ru.ru_msgsnd; 3037 ki->p_uru_msgrcv = ru.ru_msgrcv; 3038 ki->p_uru_nsignals = ru.ru_nsignals; 3039 3040 timeradd(&p->p_stats->p_cru.ru_utime, 3041 &p->p_stats->p_cru.ru_stime, &ut); 3042 ki->p_uctime_sec = ut.tv_sec; 3043 ki->p_uctime_usec = ut.tv_usec; 3044 } 3045 } 3046 3047 /* 3048 * Fill in a kinfo_lwp structure for the specified lwp. 3049 */ 3050 static void 3051 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3052 { 3053 struct proc *p = l->l_proc; 3054 struct timeval tv; 3055 3056 KASSERT(lwp_locked(l, NULL)); 3057 3058 kl->l_forw = 0; 3059 kl->l_back = 0; 3060 kl->l_laddr = PTRTOUINT64(l); 3061 kl->l_addr = PTRTOUINT64(l->l_addr); 3062 kl->l_stat = l->l_stat; 3063 kl->l_lid = l->l_lid; 3064 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 3065 3066 kl->l_swtime = l->l_swtime; 3067 kl->l_slptime = l->l_slptime; 3068 if (l->l_stat == LSONPROC) 3069 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3070 else 3071 kl->l_schedflags = 0; 3072 kl->l_holdcnt = l->l_holdcnt; 3073 kl->l_priority = lwp_eprio(l); 3074 kl->l_usrpri = l->l_priority; 3075 if (l->l_wchan) 3076 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3077 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3078 kl->l_cpuid = l->l_cpu->ci_cpuid; 3079 bintime2timeval(&l->l_rtime, &tv); 3080 kl->l_rtime_sec = tv.tv_sec; 3081 kl->l_rtime_usec = tv.tv_usec; 3082 kl->l_cpticks = l->l_cpticks; 3083 kl->l_pctcpu = l->l_pctcpu; 3084 kl->l_pid = p->p_pid; 3085 if (l->l_name == NULL) 3086 kl->l_name[0] = '\0'; 3087 else 3088 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 3089 } 3090 3091 /* 3092 * Fill in an eproc structure for the specified process. 3093 */ 3094 void 3095 fill_eproc(struct proc *p, struct eproc *ep, bool zombie) 3096 { 3097 struct tty *tp; 3098 struct lwp *l; 3099 3100 KASSERT(mutex_owned(proc_lock)); 3101 KASSERT(mutex_owned(p->p_lock)); 3102 3103 memset(ep, 0, sizeof(*ep)); 3104 3105 ep->e_paddr = p; 3106 ep->e_sess = p->p_session; 3107 if (p->p_cred) { 3108 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 3109 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 3110 } 3111 if (p->p_stat != SIDL && !P_ZOMBIE(p) && !zombie) { 3112 struct vmspace *vm = p->p_vmspace; 3113 3114 ep->e_vm.vm_rssize = vm_resident_count(vm); 3115 ep->e_vm.vm_tsize = vm->vm_tsize; 3116 ep->e_vm.vm_dsize = vm->vm_dsize; 3117 ep->e_vm.vm_ssize = vm->vm_ssize; 3118 3119 /* Pick a "representative" LWP */ 3120 l = proc_representative_lwp(p, NULL, 1); 3121 lwp_lock(l); 3122 if (l->l_wchan) 3123 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3124 lwp_unlock(l); 3125 } 3126 if (p->p_pptr) 3127 ep->e_ppid = p->p_pptr->p_pid; 3128 if (p->p_pgrp && p->p_session) { 3129 ep->e_pgid = p->p_pgrp->pg_id; 3130 ep->e_jobc = p->p_pgrp->pg_jobc; 3131 ep->e_sid = p->p_session->s_sid; 3132 if ((p->p_lflag & PL_CONTROLT) && 3133 (tp = ep->e_sess->s_ttyp)) { 3134 ep->e_tdev = tp->t_dev; 3135 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3136 ep->e_tsess = tp->t_session; 3137 } else 3138 ep->e_tdev = NODEV; 3139 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3140 if (SESS_LEADER(p)) 3141 ep->e_flag |= EPROC_SLEADER; 3142 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3143 } 3144 ep->e_xsize = ep->e_xrssize = 0; 3145 ep->e_xccount = ep->e_xswrss = 0; 3146 } 3147 3148 u_int 3149 sysctl_map_flags(const u_int *map, u_int word) 3150 { 3151 u_int rv; 3152 3153 for (rv = 0; *map != 0; map += 2) 3154 if ((word & map[0]) != 0) 3155 rv |= map[1]; 3156 3157 return rv; 3158 } 3159
Indexes created Wed Oct 01 15:09:59 GMT 2025