init_sysctl.c revision 1.147
1 /* $NetBSD: init_sysctl.c,v 1.147 2008/10/19 03:10:09 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2003, 2007, 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Brown, and by Andrew Doran. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 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 1.147 2008/10/19 03:10:09 christos Exp $"); 34 35 #include "opt_sysv.h" 36 #include "opt_posix.h" 37 #include "opt_compat_netbsd32.h" 38 #include "opt_sa.h" 39 #include "pty.h" 40 #include "rnd.h" 41 42 #include <sys/types.h> 43 #include <sys/param.h> 44 #include <sys/sysctl.h> 45 #include <sys/cpu.h> 46 #include <sys/errno.h> 47 #include <sys/systm.h> 48 #include <sys/kernel.h> 49 #include <sys/unistd.h> 50 #include <sys/disklabel.h> 51 #include <sys/rnd.h> 52 #include <sys/vnode.h> 53 #include <sys/mount.h> 54 #include <sys/namei.h> 55 #include <sys/msgbuf.h> 56 #include <dev/cons.h> 57 #include <sys/socketvar.h> 58 #include <sys/file.h> 59 #include <sys/filedesc.h> 60 #include <sys/tty.h> 61 #include <sys/malloc.h> 62 #include <sys/resource.h> 63 #include <sys/resourcevar.h> 64 #include <sys/exec.h> 65 #include <sys/conf.h> 66 #include <sys/device.h> 67 #include <sys/stat.h> 68 #include <sys/kauth.h> 69 #include <sys/ktrace.h> 70 71 #include <miscfs/specfs/specdev.h> 72 73 #ifdef COMPAT_NETBSD32 74 #include <compat/netbsd32/netbsd32.h> 75 #endif 76 77 #ifdef KERN_SA 78 #include <sys/sa.h> 79 #endif 80 81 #include <sys/cpu.h> 82 83 /* XXX this should not be here */ 84 int security_setidcore_dump; 85 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 86 uid_t security_setidcore_owner = 0; 87 gid_t security_setidcore_group = 0; 88 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 89 90 static const u_int sysctl_flagmap[] = { 91 PK_ADVLOCK, P_ADVLOCK, 92 PK_EXEC, P_EXEC, 93 PK_NOCLDWAIT, P_NOCLDWAIT, 94 PK_32, P_32, 95 PK_CLDSIGIGN, P_CLDSIGIGN, 96 PK_SUGID, P_SUGID, 97 0 98 }; 99 100 static const u_int sysctl_sflagmap[] = { 101 PS_NOCLDSTOP, P_NOCLDSTOP, 102 PS_WEXIT, P_WEXIT, 103 PS_STOPFORK, P_STOPFORK, 104 PS_STOPEXEC, P_STOPEXEC, 105 PS_STOPEXIT, P_STOPEXIT, 106 0 107 }; 108 109 static const u_int sysctl_slflagmap[] = { 110 PSL_TRACED, P_TRACED, 111 PSL_FSTRACE, P_FSTRACE, 112 PSL_CHTRACED, P_CHTRACED, 113 PSL_SYSCALL, P_SYSCALL, 114 0 115 }; 116 117 static const u_int sysctl_lflagmap[] = { 118 PL_CONTROLT, P_CONTROLT, 119 PL_PPWAIT, P_PPWAIT, 120 0 121 }; 122 123 static const u_int sysctl_stflagmap[] = { 124 PST_PROFIL, P_PROFIL, 125 0 126 127 }; 128 129 static const u_int sysctl_lwpflagmap[] = { 130 LW_INMEM, P_INMEM, 131 LW_SINTR, P_SINTR, 132 LW_SYSTEM, P_SYSTEM, 133 LW_SA, P_SA, /* WRS ??? */ 134 0 135 }; 136 137 static const u_int sysctl_lwpprflagmap[] = { 138 LPR_DETACHED, L_DETACHED, 139 0 140 }; 141 142 /* 143 * try over estimating by 5 procs/lwps 144 */ 145 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 146 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 147 148 static int dcopyout(struct lwp *, const void *, void *, size_t); 149 150 static int 151 dcopyout(struct lwp *l, const void *kaddr, void *uaddr, size_t len) 152 { 153 int error; 154 155 error = copyout(kaddr, uaddr, len); 156 ktrmibio(-1, UIO_READ, uaddr, len, error); 157 158 return error; 159 } 160 161 #ifdef DIAGNOSTIC 162 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 163 #endif 164 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 165 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 166 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 167 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 168 static int sysctl_setlen(SYSCTLFN_PROTO); 169 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 170 static int sysctl_kern_file(SYSCTLFN_PROTO); 171 static int sysctl_msgbuf(SYSCTLFN_PROTO); 172 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 173 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 174 #if NPTY > 0 175 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 176 #endif /* NPTY > 0 */ 177 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 178 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 179 static int sysctl_kern_arnd(SYSCTLFN_PROTO); 180 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 181 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 182 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 183 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 184 static int sysctl_kern_file2(SYSCTLFN_PROTO); 185 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 186 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 187 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 188 static int sysctl_doeproc(SYSCTLFN_PROTO); 189 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 190 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 191 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 192 193 static u_int sysctl_map_flags(const u_int *, u_int); 194 static void fill_kproc2(struct proc *, struct kinfo_proc2 *, bool); 195 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 196 static void fill_file(struct kinfo_file *, const file_t *, const fdfile_t *, 197 int, pid_t); 198 199 /* 200 * ******************************************************************** 201 * section 1: setup routines 202 * ******************************************************************** 203 * These functions are stuffed into a link set for sysctl setup 204 * functions. They're never called or referenced from anywhere else. 205 * ******************************************************************** 206 */ 207 208 /* 209 * sets up the base nodes... 210 */ 211 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 212 { 213 214 sysctl_createv(clog, 0, NULL, NULL, 215 CTLFLAG_PERMANENT, 216 CTLTYPE_NODE, "kern", 217 SYSCTL_DESCR("High kernel"), 218 NULL, 0, NULL, 0, 219 CTL_KERN, CTL_EOL); 220 sysctl_createv(clog, 0, NULL, NULL, 221 CTLFLAG_PERMANENT, 222 CTLTYPE_NODE, "vm", 223 SYSCTL_DESCR("Virtual memory"), 224 NULL, 0, NULL, 0, 225 CTL_VM, CTL_EOL); 226 sysctl_createv(clog, 0, NULL, NULL, 227 CTLFLAG_PERMANENT, 228 CTLTYPE_NODE, "vfs", 229 SYSCTL_DESCR("Filesystem"), 230 NULL, 0, NULL, 0, 231 CTL_VFS, CTL_EOL); 232 sysctl_createv(clog, 0, NULL, NULL, 233 CTLFLAG_PERMANENT, 234 CTLTYPE_NODE, "net", 235 SYSCTL_DESCR("Networking"), 236 NULL, 0, NULL, 0, 237 CTL_NET, CTL_EOL); 238 sysctl_createv(clog, 0, NULL, NULL, 239 CTLFLAG_PERMANENT, 240 CTLTYPE_NODE, "debug", 241 SYSCTL_DESCR("Debugging"), 242 NULL, 0, NULL, 0, 243 CTL_DEBUG, CTL_EOL); 244 sysctl_createv(clog, 0, NULL, NULL, 245 CTLFLAG_PERMANENT, 246 CTLTYPE_NODE, "hw", 247 SYSCTL_DESCR("Generic CPU, I/O"), 248 NULL, 0, NULL, 0, 249 CTL_HW, CTL_EOL); 250 sysctl_createv(clog, 0, NULL, NULL, 251 CTLFLAG_PERMANENT, 252 CTLTYPE_NODE, "machdep", 253 SYSCTL_DESCR("Machine dependent"), 254 NULL, 0, NULL, 0, 255 CTL_MACHDEP, CTL_EOL); 256 /* 257 * this node is inserted so that the sysctl nodes in libc can 258 * operate. 259 */ 260 sysctl_createv(clog, 0, NULL, NULL, 261 CTLFLAG_PERMANENT, 262 CTLTYPE_NODE, "user", 263 SYSCTL_DESCR("User-level"), 264 NULL, 0, NULL, 0, 265 CTL_USER, CTL_EOL); 266 sysctl_createv(clog, 0, NULL, NULL, 267 CTLFLAG_PERMANENT, 268 CTLTYPE_NODE, "ddb", 269 SYSCTL_DESCR("In-kernel debugger"), 270 NULL, 0, NULL, 0, 271 CTL_DDB, CTL_EOL); 272 sysctl_createv(clog, 0, NULL, NULL, 273 CTLFLAG_PERMANENT, 274 CTLTYPE_NODE, "proc", 275 SYSCTL_DESCR("Per-process"), 276 NULL, 0, NULL, 0, 277 CTL_PROC, CTL_EOL); 278 sysctl_createv(clog, 0, NULL, NULL, 279 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 280 CTLTYPE_NODE, "vendor", 281 SYSCTL_DESCR("Vendor specific"), 282 NULL, 0, NULL, 0, 283 CTL_VENDOR, CTL_EOL); 284 sysctl_createv(clog, 0, NULL, NULL, 285 CTLFLAG_PERMANENT, 286 CTLTYPE_NODE, "emul", 287 SYSCTL_DESCR("Emulation settings"), 288 NULL, 0, NULL, 0, 289 CTL_EMUL, CTL_EOL); 290 sysctl_createv(clog, 0, NULL, NULL, 291 CTLFLAG_PERMANENT, 292 CTLTYPE_NODE, "security", 293 SYSCTL_DESCR("Security"), 294 NULL, 0, NULL, 0, 295 CTL_SECURITY, CTL_EOL); 296 } 297 298 /* 299 * this setup routine is a replacement for kern_sysctl() 300 */ 301 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 302 { 303 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 304 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 305 extern int dumponpanic; /* defined in kern/subr_prf.c */ 306 const struct sysctlnode *rnode; 307 308 sysctl_createv(clog, 0, NULL, NULL, 309 CTLFLAG_PERMANENT, 310 CTLTYPE_NODE, "kern", NULL, 311 NULL, 0, NULL, 0, 312 CTL_KERN, CTL_EOL); 313 314 sysctl_createv(clog, 0, NULL, NULL, 315 CTLFLAG_PERMANENT, 316 CTLTYPE_STRING, "ostype", 317 SYSCTL_DESCR("Operating system type"), 318 NULL, 0, &ostype, 0, 319 CTL_KERN, KERN_OSTYPE, CTL_EOL); 320 sysctl_createv(clog, 0, NULL, NULL, 321 CTLFLAG_PERMANENT, 322 CTLTYPE_STRING, "osrelease", 323 SYSCTL_DESCR("Operating system release"), 324 NULL, 0, &osrelease, 0, 325 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 326 sysctl_createv(clog, 0, NULL, NULL, 327 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 328 CTLTYPE_INT, "osrevision", 329 SYSCTL_DESCR("Operating system revision"), 330 NULL, __NetBSD_Version__, NULL, 0, 331 CTL_KERN, KERN_OSREV, CTL_EOL); 332 sysctl_createv(clog, 0, NULL, NULL, 333 CTLFLAG_PERMANENT, 334 CTLTYPE_STRING, "version", 335 SYSCTL_DESCR("Kernel version"), 336 NULL, 0, &version, 0, 337 CTL_KERN, KERN_VERSION, CTL_EOL); 338 sysctl_createv(clog, 0, NULL, NULL, 339 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 340 CTLTYPE_INT, "maxvnodes", 341 SYSCTL_DESCR("Maximum number of vnodes"), 342 sysctl_kern_maxvnodes, 0, NULL, 0, 343 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 344 sysctl_createv(clog, 0, NULL, NULL, 345 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 346 CTLTYPE_INT, "maxproc", 347 SYSCTL_DESCR("Maximum number of simultaneous processes"), 348 sysctl_kern_maxproc, 0, NULL, 0, 349 CTL_KERN, KERN_MAXPROC, CTL_EOL); 350 sysctl_createv(clog, 0, NULL, NULL, 351 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 352 CTLTYPE_INT, "maxfiles", 353 SYSCTL_DESCR("Maximum number of open files"), 354 NULL, 0, &maxfiles, 0, 355 CTL_KERN, KERN_MAXFILES, CTL_EOL); 356 sysctl_createv(clog, 0, NULL, NULL, 357 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 358 CTLTYPE_INT, "argmax", 359 SYSCTL_DESCR("Maximum number of bytes of arguments to " 360 "execve(2)"), 361 NULL, ARG_MAX, NULL, 0, 362 CTL_KERN, KERN_ARGMAX, CTL_EOL); 363 sysctl_createv(clog, 0, NULL, NULL, 364 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 365 CTLTYPE_STRING, "hostname", 366 SYSCTL_DESCR("System hostname"), 367 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 368 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 369 sysctl_createv(clog, 0, NULL, NULL, 370 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 371 CTLTYPE_INT, "hostid", 372 SYSCTL_DESCR("System host ID number"), 373 sysctl_kern_hostid, 0, NULL, 0, 374 CTL_KERN, KERN_HOSTID, CTL_EOL); 375 sysctl_createv(clog, 0, NULL, NULL, 376 CTLFLAG_PERMANENT, 377 CTLTYPE_STRUCT, "clockrate", 378 SYSCTL_DESCR("Kernel clock rates"), 379 sysctl_kern_clockrate, 0, NULL, 380 sizeof(struct clockinfo), 381 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 382 sysctl_createv(clog, 0, NULL, NULL, 383 CTLFLAG_PERMANENT, 384 CTLTYPE_INT, "hardclock_ticks", 385 SYSCTL_DESCR("Number of hardclock ticks"), 386 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 387 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 388 sysctl_createv(clog, 0, NULL, NULL, 389 CTLFLAG_PERMANENT, 390 CTLTYPE_STRUCT, "vnode", 391 SYSCTL_DESCR("System vnode table"), 392 sysctl_kern_vnode, 0, NULL, 0, 393 CTL_KERN, KERN_VNODE, CTL_EOL); 394 sysctl_createv(clog, 0, NULL, NULL, 395 CTLFLAG_PERMANENT, 396 CTLTYPE_STRUCT, "file", 397 SYSCTL_DESCR("System open file table"), 398 sysctl_kern_file, 0, NULL, 0, 399 CTL_KERN, KERN_FILE, CTL_EOL); 400 #ifndef GPROF 401 sysctl_createv(clog, 0, NULL, NULL, 402 CTLFLAG_PERMANENT, 403 CTLTYPE_NODE, "profiling", 404 SYSCTL_DESCR("Profiling information (not available)"), 405 sysctl_notavail, 0, NULL, 0, 406 CTL_KERN, KERN_PROF, CTL_EOL); 407 #endif 408 sysctl_createv(clog, 0, NULL, NULL, 409 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 410 CTLTYPE_INT, "posix1version", 411 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 412 "with which the operating system attempts " 413 "to comply"), 414 NULL, _POSIX_VERSION, NULL, 0, 415 CTL_KERN, KERN_POSIX1, CTL_EOL); 416 sysctl_createv(clog, 0, NULL, NULL, 417 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 418 CTLTYPE_INT, "ngroups", 419 SYSCTL_DESCR("Maximum number of supplemental groups"), 420 NULL, NGROUPS_MAX, NULL, 0, 421 CTL_KERN, KERN_NGROUPS, CTL_EOL); 422 sysctl_createv(clog, 0, NULL, NULL, 423 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 424 CTLTYPE_INT, "job_control", 425 SYSCTL_DESCR("Whether job control is available"), 426 NULL, 1, NULL, 0, 427 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 428 sysctl_createv(clog, 0, NULL, NULL, 429 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 430 CTLTYPE_INT, "saved_ids", 431 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 432 "available"), NULL, 433 #ifdef _POSIX_SAVED_IDS 434 1, 435 #else /* _POSIX_SAVED_IDS */ 436 0, 437 #endif /* _POSIX_SAVED_IDS */ 438 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 439 sysctl_createv(clog, 0, NULL, NULL, 440 CTLFLAG_PERMANENT, 441 CTLTYPE_STRUCT, "boottime", 442 SYSCTL_DESCR("System boot time"), 443 NULL, 0, &boottime, sizeof(boottime), 444 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 445 sysctl_createv(clog, 0, NULL, NULL, 446 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 447 CTLTYPE_STRING, "domainname", 448 SYSCTL_DESCR("YP domain name"), 449 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 450 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 451 sysctl_createv(clog, 0, NULL, NULL, 452 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 453 CTLTYPE_INT, "maxpartitions", 454 SYSCTL_DESCR("Maximum number of partitions allowed per " 455 "disk"), 456 NULL, MAXPARTITIONS, NULL, 0, 457 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 458 sysctl_createv(clog, 0, NULL, NULL, 459 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 460 CTLTYPE_INT, "rawpartition", 461 SYSCTL_DESCR("Raw partition of a disk"), 462 NULL, RAW_PART, NULL, 0, 463 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 464 sysctl_createv(clog, 0, NULL, NULL, 465 CTLFLAG_PERMANENT, 466 CTLTYPE_STRUCT, "timex", NULL, 467 sysctl_notavail, 0, NULL, 0, 468 CTL_KERN, KERN_TIMEX, CTL_EOL); 469 sysctl_createv(clog, 0, NULL, NULL, 470 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 471 CTLTYPE_INT, "rtc_offset", 472 SYSCTL_DESCR("Offset of real time clock from UTC in " 473 "minutes"), 474 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 475 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 476 sysctl_createv(clog, 0, NULL, NULL, 477 CTLFLAG_PERMANENT, 478 CTLTYPE_STRING, "root_device", 479 SYSCTL_DESCR("Name of the root device"), 480 sysctl_root_device, 0, NULL, 0, 481 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 482 sysctl_createv(clog, 0, NULL, NULL, 483 CTLFLAG_PERMANENT, 484 CTLTYPE_INT, "msgbufsize", 485 SYSCTL_DESCR("Size of the kernel message buffer"), 486 sysctl_msgbuf, 0, NULL, 0, 487 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 488 sysctl_createv(clog, 0, NULL, NULL, 489 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 490 CTLTYPE_INT, "fsync", 491 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 492 "Synchronization Option is available on " 493 "this system"), 494 NULL, 1, NULL, 0, 495 CTL_KERN, KERN_FSYNC, CTL_EOL); 496 sysctl_createv(clog, 0, NULL, NULL, 497 CTLFLAG_PERMANENT, 498 CTLTYPE_NODE, "ipc", 499 SYSCTL_DESCR("SysV IPC options"), 500 NULL, 0, NULL, 0, 501 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 502 sysctl_createv(clog, 0, NULL, NULL, 503 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 504 CTLTYPE_INT, "sysvmsg", 505 SYSCTL_DESCR("System V style message support available"), 506 NULL, 507 #ifdef SYSVMSG 508 1, 509 #else /* SYSVMSG */ 510 0, 511 #endif /* SYSVMSG */ 512 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 513 sysctl_createv(clog, 0, NULL, NULL, 514 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 515 CTLTYPE_INT, "sysvsem", 516 SYSCTL_DESCR("System V style semaphore support " 517 "available"), NULL, 518 #ifdef SYSVSEM 519 1, 520 #else /* SYSVSEM */ 521 0, 522 #endif /* SYSVSEM */ 523 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 524 sysctl_createv(clog, 0, NULL, NULL, 525 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 526 CTLTYPE_INT, "sysvshm", 527 SYSCTL_DESCR("System V style shared memory support " 528 "available"), NULL, 529 #ifdef SYSVSHM 530 1, 531 #else /* SYSVSHM */ 532 0, 533 #endif /* SYSVSHM */ 534 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 535 sysctl_createv(clog, 0, NULL, NULL, 536 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 537 CTLTYPE_INT, "synchronized_io", 538 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 539 "I/O Option is available on this system"), 540 NULL, 1, NULL, 0, 541 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 542 sysctl_createv(clog, 0, NULL, NULL, 543 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 544 CTLTYPE_INT, "iov_max", 545 SYSCTL_DESCR("Maximum number of iovec structures per " 546 "process"), 547 NULL, IOV_MAX, NULL, 0, 548 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 549 sysctl_createv(clog, 0, NULL, NULL, 550 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 551 CTLTYPE_INT, "mapped_files", 552 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 553 "Files Option is available on this system"), 554 NULL, 1, NULL, 0, 555 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 556 sysctl_createv(clog, 0, NULL, NULL, 557 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 558 CTLTYPE_INT, "memlock", 559 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 560 "Locking Option is available on this " 561 "system"), 562 NULL, 1, NULL, 0, 563 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 564 sysctl_createv(clog, 0, NULL, NULL, 565 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 566 CTLTYPE_INT, "memlock_range", 567 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 568 "Locking Option is available on this " 569 "system"), 570 NULL, 1, NULL, 0, 571 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 572 sysctl_createv(clog, 0, NULL, NULL, 573 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 574 CTLTYPE_INT, "memory_protection", 575 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 576 "Protection Option is available on this " 577 "system"), 578 NULL, 1, NULL, 0, 579 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 580 sysctl_createv(clog, 0, NULL, NULL, 581 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 582 CTLTYPE_INT, "login_name_max", 583 SYSCTL_DESCR("Maximum login name length"), 584 NULL, LOGIN_NAME_MAX, NULL, 0, 585 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 586 sysctl_createv(clog, 0, NULL, NULL, 587 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 588 CTLTYPE_STRING, "defcorename", 589 SYSCTL_DESCR("Default core file name"), 590 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 591 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 592 sysctl_createv(clog, 0, NULL, NULL, 593 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 594 CTLTYPE_INT, "logsigexit", 595 SYSCTL_DESCR("Log process exit when caused by signals"), 596 NULL, 0, &kern_logsigexit, 0, 597 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 598 sysctl_createv(clog, 0, NULL, NULL, 599 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 600 CTLTYPE_INT, "fscale", 601 SYSCTL_DESCR("Kernel fixed-point scale factor"), 602 NULL, FSCALE, NULL, 0, 603 CTL_KERN, KERN_FSCALE, CTL_EOL); 604 sysctl_createv(clog, 0, NULL, NULL, 605 CTLFLAG_PERMANENT, 606 CTLTYPE_INT, "ccpu", 607 SYSCTL_DESCR("Scheduler exponential decay value"), 608 NULL, 0, &ccpu, 0, 609 CTL_KERN, KERN_CCPU, CTL_EOL); 610 sysctl_createv(clog, 0, NULL, NULL, 611 CTLFLAG_PERMANENT, 612 CTLTYPE_STRUCT, "cp_time", 613 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 614 sysctl_kern_cptime, 0, NULL, 0, 615 CTL_KERN, KERN_CP_TIME, CTL_EOL); 616 sysctl_createv(clog, 0, NULL, NULL, 617 CTLFLAG_PERMANENT, 618 CTLTYPE_INT, "msgbuf", 619 SYSCTL_DESCR("Kernel message buffer"), 620 sysctl_msgbuf, 0, NULL, 0, 621 CTL_KERN, KERN_MSGBUF, CTL_EOL); 622 sysctl_createv(clog, 0, NULL, NULL, 623 CTLFLAG_PERMANENT, 624 CTLTYPE_STRUCT, "consdev", 625 SYSCTL_DESCR("Console device"), 626 sysctl_consdev, 0, NULL, sizeof(dev_t), 627 CTL_KERN, KERN_CONSDEV, CTL_EOL); 628 #if NPTY > 0 629 sysctl_createv(clog, 0, NULL, NULL, 630 CTLFLAG_PERMANENT, 631 CTLTYPE_INT, "maxptys", 632 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 633 sysctl_kern_maxptys, 0, NULL, 0, 634 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 635 #endif /* NPTY > 0 */ 636 sysctl_createv(clog, 0, NULL, NULL, 637 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 638 CTLTYPE_INT, "maxphys", 639 SYSCTL_DESCR("Maximum raw I/O transfer size"), 640 NULL, MAXPHYS, NULL, 0, 641 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 642 sysctl_createv(clog, 0, NULL, NULL, 643 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 644 CTLTYPE_INT, "sbmax", 645 SYSCTL_DESCR("Maximum socket buffer size"), 646 sysctl_kern_sbmax, 0, NULL, 0, 647 CTL_KERN, KERN_SBMAX, CTL_EOL); 648 sysctl_createv(clog, 0, NULL, NULL, 649 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 650 CTLTYPE_INT, "monotonic_clock", 651 SYSCTL_DESCR("Implementation version of the POSIX " 652 "1003.1b Monotonic Clock Option"), 653 /* XXX _POSIX_VERSION */ 654 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 655 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 656 sysctl_createv(clog, 0, NULL, NULL, 657 CTLFLAG_PERMANENT, 658 CTLTYPE_INT, "urandom", 659 SYSCTL_DESCR("Random integer value"), 660 sysctl_kern_urnd, 0, NULL, 0, 661 CTL_KERN, KERN_URND, CTL_EOL); 662 sysctl_createv(clog, 0, NULL, NULL, 663 CTLFLAG_PERMANENT, 664 CTLTYPE_INT, "arandom", 665 SYSCTL_DESCR("n bytes of random data"), 666 sysctl_kern_arnd, 0, NULL, 0, 667 CTL_KERN, KERN_ARND, CTL_EOL); 668 sysctl_createv(clog, 0, NULL, NULL, 669 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 670 CTLTYPE_INT, "labelsector", 671 SYSCTL_DESCR("Sector number containing the disklabel"), 672 NULL, LABELSECTOR, NULL, 0, 673 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 674 sysctl_createv(clog, 0, NULL, NULL, 675 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 676 CTLTYPE_INT, "labeloffset", 677 SYSCTL_DESCR("Offset of the disklabel within the " 678 "sector"), 679 NULL, LABELOFFSET, NULL, 0, 680 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 681 sysctl_createv(clog, 0, NULL, NULL, 682 CTLFLAG_PERMANENT, 683 CTLTYPE_NODE, "lwp", 684 SYSCTL_DESCR("System-wide LWP information"), 685 sysctl_kern_lwp, 0, NULL, 0, 686 CTL_KERN, KERN_LWP, CTL_EOL); 687 sysctl_createv(clog, 0, NULL, NULL, 688 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 689 CTLTYPE_INT, "forkfsleep", 690 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 691 "to process limits"), 692 sysctl_kern_forkfsleep, 0, NULL, 0, 693 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 694 sysctl_createv(clog, 0, NULL, NULL, 695 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 696 CTLTYPE_INT, "posix_threads", 697 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 698 "Threads option to which the system " 699 "attempts to conform"), 700 /* XXX _POSIX_VERSION */ 701 NULL, _POSIX_THREADS, NULL, 0, 702 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 703 sysctl_createv(clog, 0, NULL, NULL, 704 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 705 CTLTYPE_INT, "posix_semaphores", 706 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 707 "Semaphores option to which the system " 708 "attempts to conform"), NULL, 709 #ifdef P1003_1B_SEMAPHORE 710 200112, 711 #else /* P1003_1B_SEMAPHORE */ 712 0, 713 #endif /* P1003_1B_SEMAPHORE */ 714 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 715 sysctl_createv(clog, 0, NULL, NULL, 716 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 717 CTLTYPE_INT, "posix_barriers", 718 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 719 "Barriers option to which the system " 720 "attempts to conform"), 721 /* XXX _POSIX_VERSION */ 722 NULL, _POSIX_BARRIERS, NULL, 0, 723 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 724 sysctl_createv(clog, 0, NULL, NULL, 725 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 726 CTLTYPE_INT, "posix_timers", 727 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 728 "Timers option to which the system " 729 "attempts to conform"), 730 /* XXX _POSIX_VERSION */ 731 NULL, _POSIX_TIMERS, NULL, 0, 732 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 733 sysctl_createv(clog, 0, NULL, NULL, 734 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 735 CTLTYPE_INT, "posix_spin_locks", 736 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 737 "Locks option to which the system attempts " 738 "to conform"), 739 /* XXX _POSIX_VERSION */ 740 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 741 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 742 sysctl_createv(clog, 0, NULL, NULL, 743 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 744 CTLTYPE_INT, "posix_reader_writer_locks", 745 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 746 "Read-Write Locks option to which the " 747 "system attempts to conform"), 748 /* XXX _POSIX_VERSION */ 749 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 750 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 751 sysctl_createv(clog, 0, NULL, NULL, 752 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 753 CTLTYPE_INT, "dump_on_panic", 754 SYSCTL_DESCR("Perform a crash dump on system panic"), 755 NULL, 0, &dumponpanic, 0, 756 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 757 #ifdef DIAGNOSTIC 758 sysctl_createv(clog, 0, NULL, NULL, 759 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 760 CTLTYPE_INT, "panic_now", 761 SYSCTL_DESCR("Trigger a panic"), 762 sysctl_kern_trigger_panic, 0, NULL, 0, 763 CTL_KERN, CTL_CREATE, CTL_EOL); 764 #endif 765 sysctl_createv(clog, 0, NULL, NULL, 766 CTLFLAG_PERMANENT, 767 CTLTYPE_INT, "root_partition", 768 SYSCTL_DESCR("Root partition on the root device"), 769 sysctl_kern_root_partition, 0, NULL, 0, 770 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 771 sysctl_createv(clog, 0, NULL, NULL, 772 CTLFLAG_PERMANENT, 773 CTLTYPE_STRUCT, "drivers", 774 SYSCTL_DESCR("List of all drivers with block and " 775 "character device numbers"), 776 sysctl_kern_drivers, 0, NULL, 0, 777 CTL_KERN, KERN_DRIVERS, CTL_EOL); 778 sysctl_createv(clog, 0, NULL, NULL, 779 CTLFLAG_PERMANENT, 780 CTLTYPE_STRUCT, "file2", 781 SYSCTL_DESCR("System open file table"), 782 sysctl_kern_file2, 0, NULL, 0, 783 CTL_KERN, KERN_FILE2, CTL_EOL); 784 sysctl_createv(clog, 0, NULL, NULL, 785 CTLFLAG_PERMANENT, 786 CTLTYPE_STRUCT, "cp_id", 787 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 788 sysctl_kern_cpid, 0, NULL, 0, 789 CTL_KERN, KERN_CP_ID, CTL_EOL); 790 sysctl_createv(clog, 0, NULL, &rnode, 791 CTLFLAG_PERMANENT, 792 CTLTYPE_NODE, "coredump", 793 SYSCTL_DESCR("Coredump settings."), 794 NULL, 0, NULL, 0, 795 CTL_KERN, CTL_CREATE, CTL_EOL); 796 sysctl_createv(clog, 0, &rnode, &rnode, 797 CTLFLAG_PERMANENT, 798 CTLTYPE_NODE, "setid", 799 SYSCTL_DESCR("Set-id processes' coredump settings."), 800 NULL, 0, NULL, 0, 801 CTL_CREATE, CTL_EOL); 802 sysctl_createv(clog, 0, &rnode, NULL, 803 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 804 CTLTYPE_INT, "dump", 805 SYSCTL_DESCR("Allow set-id processes to dump core."), 806 sysctl_security_setidcore, 0, &security_setidcore_dump, 807 sizeof(security_setidcore_dump), 808 CTL_CREATE, CTL_EOL); 809 sysctl_createv(clog, 0, &rnode, NULL, 810 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 811 CTLTYPE_STRING, "path", 812 SYSCTL_DESCR("Path pattern for set-id coredumps."), 813 sysctl_security_setidcorename, 0, 814 &security_setidcore_path, 815 sizeof(security_setidcore_path), 816 CTL_CREATE, CTL_EOL); 817 sysctl_createv(clog, 0, &rnode, NULL, 818 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 819 CTLTYPE_INT, "owner", 820 SYSCTL_DESCR("Owner id for set-id processes' cores."), 821 sysctl_security_setidcore, 0, &security_setidcore_owner, 822 0, 823 CTL_CREATE, CTL_EOL); 824 sysctl_createv(clog, 0, &rnode, NULL, 825 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 826 CTLTYPE_INT, "group", 827 SYSCTL_DESCR("Group id for set-id processes' cores."), 828 sysctl_security_setidcore, 0, &security_setidcore_group, 829 0, 830 CTL_CREATE, CTL_EOL); 831 sysctl_createv(clog, 0, &rnode, NULL, 832 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 833 CTLTYPE_INT, "mode", 834 SYSCTL_DESCR("Mode for set-id processes' cores."), 835 sysctl_security_setidcore, 0, &security_setidcore_mode, 836 0, 837 CTL_CREATE, CTL_EOL); 838 #ifdef KERN_SA 839 sysctl_createv(clog, 0, NULL, NULL, 840 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 841 CTLTYPE_INT, "no_sa_support", 842 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"), 843 NULL, 0, &sa_system_disabled, 0, 844 CTL_KERN, CTL_CREATE, CTL_EOL); 845 #else 846 sysctl_createv(clog, 0, NULL, NULL, 847 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 848 CTLTYPE_INT, "no_sa_support", 849 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"), 850 NULL, 1, NULL, 0, 851 CTL_KERN, CTL_CREATE, CTL_EOL); 852 #endif 853 } 854 855 SYSCTL_SETUP(sysctl_kern_proc_setup, 856 "sysctl kern.proc/proc2/proc_args subtree setup") 857 { 858 859 sysctl_createv(clog, 0, NULL, NULL, 860 CTLFLAG_PERMANENT, 861 CTLTYPE_NODE, "kern", NULL, 862 NULL, 0, NULL, 0, 863 CTL_KERN, CTL_EOL); 864 865 sysctl_createv(clog, 0, NULL, NULL, 866 CTLFLAG_PERMANENT, 867 CTLTYPE_NODE, "proc", 868 SYSCTL_DESCR("System-wide process information"), 869 sysctl_doeproc, 0, NULL, 0, 870 CTL_KERN, KERN_PROC, CTL_EOL); 871 sysctl_createv(clog, 0, NULL, NULL, 872 CTLFLAG_PERMANENT, 873 CTLTYPE_NODE, "proc2", 874 SYSCTL_DESCR("Machine-independent process information"), 875 sysctl_doeproc, 0, NULL, 0, 876 CTL_KERN, KERN_PROC2, CTL_EOL); 877 sysctl_createv(clog, 0, NULL, NULL, 878 CTLFLAG_PERMANENT, 879 CTLTYPE_NODE, "proc_args", 880 SYSCTL_DESCR("Process argument information"), 881 sysctl_kern_proc_args, 0, NULL, 0, 882 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 883 884 /* 885 "nodes" under these: 886 887 KERN_PROC_ALL 888 KERN_PROC_PID pid 889 KERN_PROC_PGRP pgrp 890 KERN_PROC_SESSION sess 891 KERN_PROC_TTY tty 892 KERN_PROC_UID uid 893 KERN_PROC_RUID uid 894 KERN_PROC_GID gid 895 KERN_PROC_RGID gid 896 897 all in all, probably not worth the effort... 898 */ 899 } 900 901 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 902 { 903 u_int u; 904 u_quad_t q; 905 906 sysctl_createv(clog, 0, NULL, NULL, 907 CTLFLAG_PERMANENT, 908 CTLTYPE_NODE, "hw", NULL, 909 NULL, 0, NULL, 0, 910 CTL_HW, CTL_EOL); 911 912 sysctl_createv(clog, 0, NULL, NULL, 913 CTLFLAG_PERMANENT, 914 CTLTYPE_STRING, "machine", 915 SYSCTL_DESCR("Machine class"), 916 NULL, 0, machine, 0, 917 CTL_HW, HW_MACHINE, CTL_EOL); 918 sysctl_createv(clog, 0, NULL, NULL, 919 CTLFLAG_PERMANENT, 920 CTLTYPE_STRING, "model", 921 SYSCTL_DESCR("Machine model"), 922 NULL, 0, cpu_model, 0, 923 CTL_HW, HW_MODEL, CTL_EOL); 924 sysctl_createv(clog, 0, NULL, NULL, 925 CTLFLAG_PERMANENT, 926 CTLTYPE_INT, "ncpu", 927 SYSCTL_DESCR("Number of CPUs configured"), 928 NULL, 0, &ncpu, 0, 929 CTL_HW, HW_NCPU, CTL_EOL); 930 sysctl_createv(clog, 0, NULL, NULL, 931 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 932 CTLTYPE_INT, "byteorder", 933 SYSCTL_DESCR("System byte order"), 934 NULL, BYTE_ORDER, NULL, 0, 935 CTL_HW, HW_BYTEORDER, CTL_EOL); 936 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 937 UINT_MAX : physmem * PAGE_SIZE; 938 sysctl_createv(clog, 0, NULL, NULL, 939 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 940 CTLTYPE_INT, "physmem", 941 SYSCTL_DESCR("Bytes of physical memory"), 942 NULL, u, NULL, 0, 943 CTL_HW, HW_PHYSMEM, CTL_EOL); 944 sysctl_createv(clog, 0, NULL, NULL, 945 CTLFLAG_PERMANENT, 946 CTLTYPE_INT, "usermem", 947 SYSCTL_DESCR("Bytes of non-kernel memory"), 948 sysctl_hw_usermem, 0, NULL, 0, 949 CTL_HW, HW_USERMEM, CTL_EOL); 950 sysctl_createv(clog, 0, NULL, NULL, 951 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 952 CTLTYPE_INT, "pagesize", 953 SYSCTL_DESCR("Software page size"), 954 NULL, PAGE_SIZE, NULL, 0, 955 CTL_HW, HW_PAGESIZE, CTL_EOL); 956 sysctl_createv(clog, 0, NULL, NULL, 957 CTLFLAG_PERMANENT, 958 CTLTYPE_STRING, "machine_arch", 959 SYSCTL_DESCR("Machine CPU class"), 960 NULL, 0, machine_arch, 0, 961 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 962 sysctl_createv(clog, 0, NULL, NULL, 963 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 964 CTLTYPE_INT, "alignbytes", 965 SYSCTL_DESCR("Alignment constraint for all possible " 966 "data types"), 967 NULL, ALIGNBYTES, NULL, 0, 968 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 969 sysctl_createv(clog, 0, NULL, NULL, 970 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 971 CTLTYPE_STRING, "cnmagic", 972 SYSCTL_DESCR("Console magic key sequence"), 973 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 974 CTL_HW, HW_CNMAGIC, CTL_EOL); 975 q = (u_quad_t)physmem * PAGE_SIZE; 976 sysctl_createv(clog, 0, NULL, NULL, 977 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 978 CTLTYPE_QUAD, "physmem64", 979 SYSCTL_DESCR("Bytes of physical memory"), 980 NULL, q, NULL, 0, 981 CTL_HW, HW_PHYSMEM64, CTL_EOL); 982 sysctl_createv(clog, 0, NULL, NULL, 983 CTLFLAG_PERMANENT, 984 CTLTYPE_QUAD, "usermem64", 985 SYSCTL_DESCR("Bytes of non-kernel memory"), 986 sysctl_hw_usermem, 0, NULL, 0, 987 CTL_HW, HW_USERMEM64, CTL_EOL); 988 sysctl_createv(clog, 0, NULL, NULL, 989 CTLFLAG_PERMANENT, 990 CTLTYPE_INT, "ncpuonline", 991 SYSCTL_DESCR("Number of CPUs online"), 992 NULL, 0, &ncpuonline, 0, 993 CTL_HW, HW_NCPUONLINE, CTL_EOL); 994 } 995 996 #ifdef DEBUG 997 /* 998 * Debugging related system variables. 999 */ 1000 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 1001 struct ctldebug debug5, debug6, debug7, debug8, debug9; 1002 struct ctldebug debug10, debug11, debug12, debug13, debug14; 1003 struct ctldebug debug15, debug16, debug17, debug18, debug19; 1004 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 1005 &debug0, &debug1, &debug2, &debug3, &debug4, 1006 &debug5, &debug6, &debug7, &debug8, &debug9, 1007 &debug10, &debug11, &debug12, &debug13, &debug14, 1008 &debug15, &debug16, &debug17, &debug18, &debug19, 1009 }; 1010 1011 /* 1012 * this setup routine is a replacement for debug_sysctl() 1013 * 1014 * note that it creates several nodes per defined debug variable 1015 */ 1016 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1017 { 1018 struct ctldebug *cdp; 1019 char nodename[20]; 1020 int i; 1021 1022 /* 1023 * two ways here: 1024 * 1025 * the "old" way (debug.name -> value) which was emulated by 1026 * the sysctl(8) binary 1027 * 1028 * the new way, which the sysctl(8) binary was actually using 1029 1030 node debug 1031 node debug.0 1032 string debug.0.name 1033 int debug.0.value 1034 int debug.name 1035 1036 */ 1037 1038 sysctl_createv(clog, 0, NULL, NULL, 1039 CTLFLAG_PERMANENT, 1040 CTLTYPE_NODE, "debug", NULL, 1041 NULL, 0, NULL, 0, 1042 CTL_DEBUG, CTL_EOL); 1043 1044 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1045 cdp = debugvars[i]; 1046 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1047 continue; 1048 1049 snprintf(nodename, sizeof(nodename), "debug%d", i); 1050 sysctl_createv(clog, 0, NULL, NULL, 1051 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1052 CTLTYPE_NODE, nodename, NULL, 1053 NULL, 0, NULL, 0, 1054 CTL_DEBUG, i, CTL_EOL); 1055 sysctl_createv(clog, 0, NULL, NULL, 1056 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1057 CTLTYPE_STRING, "name", NULL, 1058 /*XXXUNCONST*/ 1059 NULL, 0, __UNCONST(cdp->debugname), 0, 1060 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1061 sysctl_createv(clog, 0, NULL, NULL, 1062 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1063 CTLTYPE_INT, "value", NULL, 1064 NULL, 0, cdp->debugvar, 0, 1065 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1066 sysctl_createv(clog, 0, NULL, NULL, 1067 CTLFLAG_PERMANENT, 1068 CTLTYPE_INT, cdp->debugname, NULL, 1069 NULL, 0, cdp->debugvar, 0, 1070 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1071 } 1072 } 1073 #endif /* DEBUG */ 1074 1075 /* 1076 * ******************************************************************** 1077 * section 2: private node-specific helper routines. 1078 * ******************************************************************** 1079 */ 1080 1081 #ifdef DIAGNOSTIC 1082 static int 1083 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1084 { 1085 int newtrig, error; 1086 struct sysctlnode node; 1087 1088 newtrig = 0; 1089 node = *rnode; 1090 node.sysctl_data = &newtrig; 1091 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1092 if (error || newp == NULL) 1093 return (error); 1094 1095 if (newtrig != 0) 1096 panic("Panic triggered"); 1097 1098 return (error); 1099 } 1100 #endif 1101 1102 /* 1103 * sysctl helper routine for kern.maxvnodes. Drain vnodes if 1104 * new value is lower than desiredvnodes and then calls reinit 1105 * routines that needs to adjust to the new value. 1106 */ 1107 static int 1108 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1109 { 1110 int error, new_vnodes, old_vnodes, new_max; 1111 struct sysctlnode node; 1112 1113 new_vnodes = desiredvnodes; 1114 node = *rnode; 1115 node.sysctl_data = &new_vnodes; 1116 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1117 if (error || newp == NULL) 1118 return (error); 1119 1120 /* Limits: 75% of KVA and physical memory. */ 1121 new_max = calc_cache_size(kernel_map, 75, 75) / VNODE_COST; 1122 if (new_vnodes > new_max) 1123 new_vnodes = new_max; 1124 1125 old_vnodes = desiredvnodes; 1126 desiredvnodes = new_vnodes; 1127 if (new_vnodes < old_vnodes) { 1128 error = vfs_drainvnodes(new_vnodes, l); 1129 if (error) { 1130 desiredvnodes = old_vnodes; 1131 return (error); 1132 } 1133 } 1134 vfs_reinit(); 1135 nchreinit(); 1136 1137 return (0); 1138 } 1139 1140 /* 1141 * sysctl helper routine for rtc_offset - set time after changes 1142 */ 1143 static int 1144 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1145 { 1146 struct timespec ts, delta; 1147 int error, new_rtc_offset; 1148 struct sysctlnode node; 1149 1150 new_rtc_offset = rtc_offset; 1151 node = *rnode; 1152 node.sysctl_data = &new_rtc_offset; 1153 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1154 if (error || newp == NULL) 1155 return (error); 1156 1157 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1158 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1159 KAUTH_ARG(new_rtc_offset), NULL, NULL)) 1160 return (EPERM); 1161 if (rtc_offset == new_rtc_offset) 1162 return (0); 1163 1164 /* if we change the offset, adjust the time */ 1165 nanotime(&ts); 1166 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1167 delta.tv_nsec = 0; 1168 timespecadd(&ts, &delta, &ts); 1169 rtc_offset = new_rtc_offset; 1170 return (settime(l->l_proc, &ts)); 1171 } 1172 1173 /* 1174 * sysctl helper routine for kern.maxproc. Ensures that the new 1175 * values are not too low or too high. 1176 */ 1177 static int 1178 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1179 { 1180 int error, nmaxproc; 1181 struct sysctlnode node; 1182 1183 nmaxproc = maxproc; 1184 node = *rnode; 1185 node.sysctl_data = &nmaxproc; 1186 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1187 if (error || newp == NULL) 1188 return (error); 1189 1190 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1191 return (EINVAL); 1192 #ifdef __HAVE_CPU_MAXPROC 1193 if (nmaxproc > cpu_maxproc()) 1194 return (EINVAL); 1195 #endif 1196 maxproc = nmaxproc; 1197 1198 return (0); 1199 } 1200 1201 /* 1202 * sysctl helper function for kern.hostid. The hostid is a long, but 1203 * we export it as an int, so we need to give it a little help. 1204 */ 1205 static int 1206 sysctl_kern_hostid(SYSCTLFN_ARGS) 1207 { 1208 int error, inthostid; 1209 struct sysctlnode node; 1210 1211 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1212 node = *rnode; 1213 node.sysctl_data = &inthostid; 1214 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1215 if (error || newp == NULL) 1216 return (error); 1217 1218 hostid = (unsigned)inthostid; 1219 1220 return (0); 1221 } 1222 1223 /* 1224 * sysctl helper function for kern.hostname and kern.domainnname. 1225 * resets the relevant recorded length when the underlying name is 1226 * changed. 1227 */ 1228 static int 1229 sysctl_setlen(SYSCTLFN_ARGS) 1230 { 1231 int error; 1232 1233 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1234 if (error || newp == NULL) 1235 return (error); 1236 1237 switch (rnode->sysctl_num) { 1238 case KERN_HOSTNAME: 1239 hostnamelen = strlen((const char*)rnode->sysctl_data); 1240 break; 1241 case KERN_DOMAINNAME: 1242 domainnamelen = strlen((const char*)rnode->sysctl_data); 1243 break; 1244 } 1245 1246 return (0); 1247 } 1248 1249 /* 1250 * sysctl helper routine for kern.clockrate. Assembles a struct on 1251 * the fly to be returned to the caller. 1252 */ 1253 static int 1254 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1255 { 1256 struct clockinfo clkinfo; 1257 struct sysctlnode node; 1258 1259 clkinfo.tick = tick; 1260 clkinfo.tickadj = tickadj; 1261 clkinfo.hz = hz; 1262 clkinfo.profhz = profhz; 1263 clkinfo.stathz = stathz ? stathz : hz; 1264 1265 node = *rnode; 1266 node.sysctl_data = &clkinfo; 1267 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1268 } 1269 1270 1271 /* 1272 * sysctl helper routine for kern.file pseudo-subtree. 1273 */ 1274 static int 1275 sysctl_kern_file(SYSCTLFN_ARGS) 1276 { 1277 int error; 1278 size_t buflen; 1279 struct file *fp, *dp, *np, fbuf; 1280 char *start, *where; 1281 1282 start = where = oldp; 1283 buflen = *oldlenp; 1284 dp = NULL; 1285 1286 if (where == NULL) { 1287 /* 1288 * overestimate by 10 files 1289 */ 1290 *oldlenp = sizeof(filehead) + (nfiles + 10) * 1291 sizeof(struct file); 1292 return (0); 1293 } 1294 1295 /* 1296 * first dcopyout filehead 1297 */ 1298 if (buflen < sizeof(filehead)) { 1299 *oldlenp = 0; 1300 return (0); 1301 } 1302 sysctl_unlock(); 1303 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1304 if (error) { 1305 sysctl_relock(); 1306 return error; 1307 } 1308 buflen -= sizeof(filehead); 1309 where += sizeof(filehead); 1310 1311 /* 1312 * allocate dummy file descriptor to make position in list 1313 */ 1314 if ((dp = fgetdummy()) == NULL) { 1315 sysctl_relock(); 1316 return ENOMEM; 1317 } 1318 1319 /* 1320 * followed by an array of file structures 1321 */ 1322 mutex_enter(&filelist_lock); 1323 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1324 np = LIST_NEXT(fp, f_list); 1325 mutex_enter(&fp->f_lock); 1326 if (fp->f_count == 0) { 1327 mutex_exit(&fp->f_lock); 1328 continue; 1329 } 1330 /* 1331 * XXX Need to prevent that from being an alternative way 1332 * XXX to getting process information. 1333 */ 1334 if (kauth_authorize_generic(l->l_cred, 1335 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1336 mutex_exit(&fp->f_lock); 1337 continue; 1338 } 1339 if (buflen < sizeof(struct file)) { 1340 *oldlenp = where - start; 1341 mutex_exit(&fp->f_lock); 1342 error = ENOMEM; 1343 break; 1344 } 1345 memcpy(&fbuf, fp, sizeof(fbuf)); 1346 LIST_INSERT_AFTER(fp, dp, f_list); 1347 mutex_exit(&fp->f_lock); 1348 mutex_exit(&filelist_lock); 1349 error = dcopyout(l, &fbuf, where, sizeof(fbuf)); 1350 if (error) { 1351 mutex_enter(&filelist_lock); 1352 LIST_REMOVE(dp, f_list); 1353 break; 1354 } 1355 buflen -= sizeof(struct file); 1356 where += sizeof(struct file); 1357 mutex_enter(&filelist_lock); 1358 np = LIST_NEXT(dp, f_list); 1359 LIST_REMOVE(dp, f_list); 1360 } 1361 mutex_exit(&filelist_lock); 1362 *oldlenp = where - start; 1363 if (dp != NULL) 1364 fputdummy(dp); 1365 sysctl_relock(); 1366 return (error); 1367 } 1368 1369 /* 1370 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 1371 * former it merely checks the message buffer is set up. For the latter, 1372 * it also copies out the data if necessary. 1373 */ 1374 static int 1375 sysctl_msgbuf(SYSCTLFN_ARGS) 1376 { 1377 char *where = oldp; 1378 size_t len, maxlen; 1379 long beg, end; 1380 extern kmutex_t log_lock; 1381 int error; 1382 1383 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1384 msgbufenabled = 0; 1385 return (ENXIO); 1386 } 1387 1388 switch (rnode->sysctl_num) { 1389 case KERN_MSGBUFSIZE: { 1390 struct sysctlnode node = *rnode; 1391 int msg_bufs = (int)msgbufp->msg_bufs; 1392 node.sysctl_data = &msg_bufs; 1393 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1394 } 1395 case KERN_MSGBUF: 1396 break; 1397 default: 1398 return (EOPNOTSUPP); 1399 } 1400 1401 if (newp != NULL) 1402 return (EPERM); 1403 1404 if (oldp == NULL) { 1405 /* always return full buffer size */ 1406 *oldlenp = msgbufp->msg_bufs; 1407 return (0); 1408 } 1409 1410 sysctl_unlock(); 1411 1412 /* 1413 * First, copy from the write pointer to the end of 1414 * message buffer. 1415 */ 1416 error = 0; 1417 mutex_spin_enter(&log_lock); 1418 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1419 beg = msgbufp->msg_bufx; 1420 end = msgbufp->msg_bufs; 1421 mutex_spin_exit(&log_lock); 1422 1423 while (maxlen > 0) { 1424 len = MIN(end - beg, maxlen); 1425 if (len == 0) 1426 break; 1427 /* XXX unlocked, but hardly matters. */ 1428 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1429 if (error) 1430 break; 1431 where += len; 1432 maxlen -= len; 1433 1434 /* 1435 * ... then, copy from the beginning of message buffer to 1436 * the write pointer. 1437 */ 1438 beg = 0; 1439 end = msgbufp->msg_bufx; 1440 } 1441 1442 sysctl_relock(); 1443 return (error); 1444 } 1445 1446 /* 1447 * sysctl helper routine for kern.defcorename. In the case of a new 1448 * string being assigned, check that it's not a zero-length string. 1449 * (XXX the check in -current doesn't work, but do we really care?) 1450 */ 1451 static int 1452 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1453 { 1454 int error; 1455 char *newcorename; 1456 struct sysctlnode node; 1457 1458 newcorename = PNBUF_GET(); 1459 node = *rnode; 1460 node.sysctl_data = &newcorename[0]; 1461 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1462 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1463 if (error || newp == NULL) { 1464 goto done; 1465 } 1466 1467 /* 1468 * when sysctl_lookup() deals with a string, it's guaranteed 1469 * to come back nul terminated. So there. :) 1470 */ 1471 if (strlen(newcorename) == 0) { 1472 error = EINVAL; 1473 } else { 1474 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1475 error = 0; 1476 } 1477 done: 1478 PNBUF_PUT(newcorename); 1479 return error; 1480 } 1481 1482 /* 1483 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1484 * across all cpus. 1485 */ 1486 static int 1487 sysctl_kern_cptime(SYSCTLFN_ARGS) 1488 { 1489 struct sysctlnode node = *rnode; 1490 uint64_t *cp_time = NULL; 1491 int error, n = ncpu, i; 1492 struct cpu_info *ci; 1493 CPU_INFO_ITERATOR cii; 1494 1495 /* 1496 * if you specifically pass a buffer that is the size of the 1497 * sum, or if you are probing for the size, you get the "sum" 1498 * of cp_time (and the size thereof) across all processors. 1499 * 1500 * alternately, you can pass an additional mib number and get 1501 * cp_time for that particular processor. 1502 */ 1503 switch (namelen) { 1504 case 0: 1505 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1506 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1507 n = -1; /* SUM */ 1508 } 1509 else { 1510 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1511 n = -2; /* ALL */ 1512 } 1513 break; 1514 case 1: 1515 if (name[0] < 0 || name[0] >= n) 1516 return (ENOENT); /* ENOSUCHPROCESSOR */ 1517 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1518 n = name[0]; 1519 /* 1520 * adjust these so that sysctl_lookup() will be happy 1521 */ 1522 name++; 1523 namelen--; 1524 break; 1525 default: 1526 return (EINVAL); 1527 } 1528 1529 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); 1530 if (cp_time == NULL) 1531 return (ENOMEM); 1532 node.sysctl_data = cp_time; 1533 memset(cp_time, 0, node.sysctl_size); 1534 1535 for (CPU_INFO_FOREACH(cii, ci)) { 1536 if (n <= 0) { 1537 for (i = 0; i < CPUSTATES; i++) { 1538 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1539 } 1540 } 1541 /* 1542 * if a specific processor was requested and we just 1543 * did it, we're done here 1544 */ 1545 if (n == 0) 1546 break; 1547 /* 1548 * if doing "all", skip to next cp_time set for next processor 1549 */ 1550 if (n == -2) 1551 cp_time += CPUSTATES; 1552 /* 1553 * if we're doing a specific processor, we're one 1554 * processor closer 1555 */ 1556 if (n > 0) 1557 n--; 1558 } 1559 1560 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1561 kmem_free(node.sysctl_data, node.sysctl_size); 1562 return (error); 1563 } 1564 1565 #if NPTY > 0 1566 /* 1567 * sysctl helper routine for kern.maxptys. Ensures that any new value 1568 * is acceptable to the pty subsystem. 1569 */ 1570 static int 1571 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1572 { 1573 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1574 int error, xmax; 1575 struct sysctlnode node; 1576 1577 /* get current value of maxptys */ 1578 xmax = pty_maxptys(0, 0); 1579 1580 node = *rnode; 1581 node.sysctl_data = &xmax; 1582 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1583 if (error || newp == NULL) 1584 return (error); 1585 1586 if (xmax != pty_maxptys(xmax, 1)) 1587 return (EINVAL); 1588 1589 return (0); 1590 } 1591 #endif /* NPTY > 0 */ 1592 1593 /* 1594 * sysctl helper routine for kern.sbmax. Basically just ensures that 1595 * any new value is not too small. 1596 */ 1597 static int 1598 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1599 { 1600 int error, new_sbmax; 1601 struct sysctlnode node; 1602 1603 new_sbmax = sb_max; 1604 node = *rnode; 1605 node.sysctl_data = &new_sbmax; 1606 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1607 if (error || newp == NULL) 1608 return (error); 1609 1610 KERNEL_LOCK(1, NULL); 1611 error = sb_max_set(new_sbmax); 1612 KERNEL_UNLOCK_ONE(NULL); 1613 1614 return (error); 1615 } 1616 1617 /* 1618 * sysctl helper routine for kern.urandom node. Picks a random number 1619 * for you. 1620 */ 1621 static int 1622 sysctl_kern_urnd(SYSCTLFN_ARGS) 1623 { 1624 #if NRND > 0 1625 int v, rv; 1626 1627 KERNEL_LOCK(1, NULL); 1628 rv = rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY); 1629 KERNEL_UNLOCK_ONE(NULL); 1630 if (rv == sizeof(v)) { 1631 struct sysctlnode node = *rnode; 1632 node.sysctl_data = &v; 1633 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1634 } 1635 else 1636 return (EIO); /*XXX*/ 1637 #else 1638 return (EOPNOTSUPP); 1639 #endif 1640 } 1641 1642 /* 1643 * sysctl helper routine for kern.arandom node. Picks a random number 1644 * for you. 1645 */ 1646 static int 1647 sysctl_kern_arnd(SYSCTLFN_ARGS) 1648 { 1649 #if NRND > 0 1650 int error; 1651 void *v; 1652 struct sysctlnode node = *rnode; 1653 1654 if (*oldlenp == 0) 1655 return 0; 1656 if (*oldlenp > 8192) 1657 return E2BIG; 1658 1659 v = kmem_alloc(*oldlenp, KM_SLEEP); 1660 arc4randbytes(v, *oldlenp); 1661 node.sysctl_data = v; 1662 node.sysctl_size = *oldlenp; 1663 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1664 kmem_free(v, *oldlenp); 1665 return error; 1666 #else 1667 return (EOPNOTSUPP); 1668 #endif 1669 } 1670 /* 1671 * sysctl helper routine to do kern.lwp.* work. 1672 */ 1673 static int 1674 sysctl_kern_lwp(SYSCTLFN_ARGS) 1675 { 1676 struct kinfo_lwp klwp; 1677 struct proc *p; 1678 struct lwp *l2, *l3; 1679 char *where, *dp; 1680 int pid, elem_size, elem_count; 1681 int buflen, needed, error; 1682 bool gotit; 1683 1684 if (namelen == 1 && name[0] == CTL_QUERY) 1685 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1686 1687 dp = where = oldp; 1688 buflen = where != NULL ? *oldlenp : 0; 1689 error = needed = 0; 1690 1691 if (newp != NULL || namelen != 3) 1692 return (EINVAL); 1693 pid = name[0]; 1694 elem_size = name[1]; 1695 elem_count = name[2]; 1696 1697 sysctl_unlock(); 1698 if (pid == -1) { 1699 mutex_enter(proc_lock); 1700 LIST_FOREACH(p, &allproc, p_list) { 1701 /* Grab a hold on the process. */ 1702 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 1703 continue; 1704 } 1705 mutex_exit(proc_lock); 1706 1707 mutex_enter(p->p_lock); 1708 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1709 if (buflen >= elem_size && elem_count > 0) { 1710 lwp_lock(l2); 1711 fill_lwp(l2, &klwp); 1712 lwp_unlock(l2); 1713 mutex_exit(p->p_lock); 1714 1715 /* 1716 * Copy out elem_size, but not 1717 * larger than the size of a 1718 * struct kinfo_proc2. 1719 */ 1720 error = dcopyout(l, &klwp, dp, 1721 min(sizeof(klwp), elem_size)); 1722 if (error) { 1723 rw_exit(&p->p_reflock); 1724 goto cleanup; 1725 } 1726 mutex_enter(p->p_lock); 1727 LIST_FOREACH(l3, &p->p_lwps, 1728 l_sibling) { 1729 if (l2 == l3) 1730 break; 1731 } 1732 if (l3 == NULL) { 1733 mutex_exit(p->p_lock); 1734 rw_exit(&p->p_reflock); 1735 error = EAGAIN; 1736 goto cleanup; 1737 } 1738 dp += elem_size; 1739 buflen -= elem_size; 1740 elem_count--; 1741 } 1742 needed += elem_size; 1743 } 1744 mutex_exit(p->p_lock); 1745 1746 /* Drop reference to process. */ 1747 mutex_enter(proc_lock); 1748 rw_exit(&p->p_reflock); 1749 } 1750 mutex_exit(proc_lock); 1751 } else { 1752 mutex_enter(proc_lock); 1753 p = p_find(pid, PFIND_LOCKED); 1754 if (p == NULL) { 1755 error = ESRCH; 1756 mutex_exit(proc_lock); 1757 goto cleanup; 1758 } 1759 /* Grab a hold on the process. */ 1760 gotit = rw_tryenter(&p->p_reflock, RW_READER); 1761 mutex_exit(proc_lock); 1762 if (!gotit) { 1763 error = ESRCH; 1764 goto cleanup; 1765 } 1766 1767 mutex_enter(p->p_lock); 1768 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1769 if (buflen >= elem_size && elem_count > 0) { 1770 lwp_lock(l2); 1771 fill_lwp(l2, &klwp); 1772 lwp_unlock(l2); 1773 mutex_exit(p->p_lock); 1774 /* 1775 * Copy out elem_size, but not larger than 1776 * the size of a struct kinfo_proc2. 1777 */ 1778 error = dcopyout(l, &klwp, dp, 1779 min(sizeof(klwp), elem_size)); 1780 if (error) { 1781 rw_exit(&p->p_reflock); 1782 goto cleanup; 1783 } 1784 mutex_enter(p->p_lock); 1785 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1786 if (l2 == l3) 1787 break; 1788 } 1789 if (l3 == NULL) { 1790 mutex_exit(p->p_lock); 1791 rw_exit(&p->p_reflock); 1792 error = EAGAIN; 1793 goto cleanup; 1794 } 1795 dp += elem_size; 1796 buflen -= elem_size; 1797 elem_count--; 1798 } 1799 needed += elem_size; 1800 } 1801 mutex_exit(p->p_lock); 1802 1803 /* Drop reference to process. */ 1804 rw_exit(&p->p_reflock); 1805 } 1806 1807 if (where != NULL) { 1808 *oldlenp = dp - where; 1809 if (needed > *oldlenp) { 1810 sysctl_relock(); 1811 return (ENOMEM); 1812 } 1813 } else { 1814 needed += KERN_LWPSLOP; 1815 *oldlenp = needed; 1816 } 1817 error = 0; 1818 cleanup: 1819 sysctl_relock(); 1820 return (error); 1821 } 1822 1823 /* 1824 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1825 * given value is not too large or two small, and is at least one 1826 * timer tick if not zero. 1827 */ 1828 static int 1829 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1830 { 1831 /* userland sees value in ms, internally is in ticks */ 1832 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1833 int error, timo, lsleep; 1834 struct sysctlnode node; 1835 1836 lsleep = forkfsleep * 1000 / hz; 1837 node = *rnode; 1838 node.sysctl_data = &lsleep; 1839 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1840 if (error || newp == NULL) 1841 return (error); 1842 1843 /* refuse negative values, and overly 'long time' */ 1844 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1845 return (EINVAL); 1846 1847 timo = mstohz(lsleep); 1848 1849 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1850 if (lsleep != 0 && timo == 0) 1851 forkfsleep = 1; 1852 else 1853 forkfsleep = timo; 1854 1855 return (0); 1856 } 1857 1858 /* 1859 * sysctl helper routine for kern.root_partition 1860 */ 1861 static int 1862 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1863 { 1864 int rootpart = DISKPART(rootdev); 1865 struct sysctlnode node = *rnode; 1866 1867 node.sysctl_data = &rootpart; 1868 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1869 } 1870 1871 /* 1872 * sysctl helper function for kern.drivers 1873 */ 1874 static int 1875 sysctl_kern_drivers(SYSCTLFN_ARGS) 1876 { 1877 int error; 1878 size_t buflen; 1879 struct kinfo_drivers kd; 1880 char *start, *where; 1881 const char *dname; 1882 int i; 1883 extern struct devsw_conv *devsw_conv; 1884 extern int max_devsw_convs; 1885 1886 if (newp != NULL || namelen != 0) 1887 return (EINVAL); 1888 1889 start = where = oldp; 1890 buflen = *oldlenp; 1891 if (where == NULL) { 1892 *oldlenp = max_devsw_convs * sizeof kd; 1893 return 0; 1894 } 1895 1896 /* 1897 * An array of kinfo_drivers structures 1898 */ 1899 error = 0; 1900 sysctl_unlock(); 1901 mutex_enter(&specfs_lock); 1902 for (i = 0; i < max_devsw_convs; i++) { 1903 dname = devsw_conv[i].d_name; 1904 if (dname == NULL) 1905 continue; 1906 if (buflen < sizeof kd) { 1907 error = ENOMEM; 1908 break; 1909 } 1910 memset(&kd, 0, sizeof(kd)); 1911 kd.d_bmajor = devsw_conv[i].d_bmajor; 1912 kd.d_cmajor = devsw_conv[i].d_cmajor; 1913 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1914 mutex_exit(&specfs_lock); 1915 error = dcopyout(l, &kd, where, sizeof kd); 1916 mutex_enter(&specfs_lock); 1917 if (error != 0) 1918 break; 1919 buflen -= sizeof kd; 1920 where += sizeof kd; 1921 } 1922 mutex_exit(&specfs_lock); 1923 sysctl_relock(); 1924 *oldlenp = where - start; 1925 return error; 1926 } 1927 1928 /* 1929 * sysctl helper function for kern.file2 1930 */ 1931 static int 1932 sysctl_kern_file2(SYSCTLFN_ARGS) 1933 { 1934 struct proc *p; 1935 struct file *fp, *tp, *np; 1936 struct filedesc *fd; 1937 struct kinfo_file kf; 1938 char *dp; 1939 u_int i, op; 1940 size_t len, needed, elem_size, out_size; 1941 int error, arg, elem_count; 1942 fdfile_t *ff; 1943 1944 if (namelen == 1 && name[0] == CTL_QUERY) 1945 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1946 1947 if (namelen != 4) 1948 return (EINVAL); 1949 1950 error = 0; 1951 dp = oldp; 1952 len = (oldp != NULL) ? *oldlenp : 0; 1953 op = name[0]; 1954 arg = name[1]; 1955 elem_size = name[2]; 1956 elem_count = name[3]; 1957 out_size = MIN(sizeof(kf), elem_size); 1958 needed = 0; 1959 1960 if (elem_size < 1 || elem_count < 0) 1961 return (EINVAL); 1962 1963 switch (op) { 1964 case KERN_FILE_BYFILE: 1965 /* 1966 * doesn't use arg so it must be zero 1967 */ 1968 if (arg != 0) 1969 return (EINVAL); 1970 sysctl_unlock(); 1971 /* 1972 * allocate dummy file descriptor to make position in list 1973 */ 1974 if ((tp = fgetdummy()) == NULL) { 1975 sysctl_relock(); 1976 return ENOMEM; 1977 } 1978 mutex_enter(&filelist_lock); 1979 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1980 np = LIST_NEXT(fp, f_list); 1981 mutex_enter(&fp->f_lock); 1982 if (fp->f_count == 0) { 1983 mutex_exit(&fp->f_lock); 1984 continue; 1985 } 1986 /* 1987 * XXX Need to prevent that from being an alternative 1988 * XXX way for getting process information. 1989 */ 1990 if (kauth_authorize_generic(l->l_cred, 1991 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1992 mutex_exit(&fp->f_lock); 1993 continue; 1994 } 1995 if (len >= elem_size && elem_count > 0) { 1996 fill_file(&kf, fp, NULL, 0, 0); 1997 LIST_INSERT_AFTER(fp, tp, f_list); 1998 mutex_exit(&fp->f_lock); 1999 mutex_exit(&filelist_lock); 2000 error = dcopyout(l, &kf, dp, out_size); 2001 mutex_enter(&filelist_lock); 2002 np = LIST_NEXT(tp, f_list); 2003 LIST_REMOVE(tp, f_list); 2004 if (error) { 2005 break; 2006 } 2007 dp += elem_size; 2008 len -= elem_size; 2009 } else { 2010 mutex_exit(&fp->f_lock); 2011 } 2012 if (elem_count > 0) { 2013 needed += elem_size; 2014 if (elem_count != INT_MAX) 2015 elem_count--; 2016 } 2017 } 2018 mutex_exit(&filelist_lock); 2019 fputdummy(tp); 2020 sysctl_relock(); 2021 break; 2022 case KERN_FILE_BYPID: 2023 if (arg < -1) 2024 /* -1 means all processes */ 2025 return (EINVAL); 2026 sysctl_unlock(); 2027 mutex_enter(proc_lock); 2028 LIST_FOREACH(p, &allproc, p_list) { 2029 if (p->p_stat == SIDL) { 2030 /* skip embryonic processes */ 2031 continue; 2032 } 2033 if (arg > 0 && p->p_pid != arg) { 2034 /* pick only the one we want */ 2035 /* XXX want 0 to mean "kernel files" */ 2036 continue; 2037 } 2038 mutex_enter(p->p_lock); 2039 error = kauth_authorize_process(l->l_cred, 2040 KAUTH_PROCESS_CANSEE, p, 2041 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_OPENFILES), 2042 NULL, NULL); 2043 mutex_exit(p->p_lock); 2044 if (error != 0) { 2045 continue; 2046 } 2047 2048 /* 2049 * Grab a hold on the process. 2050 */ 2051 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 2052 continue; 2053 } 2054 mutex_exit(proc_lock); 2055 2056 /* XXX Do we need to check permission per file? */ 2057 fd = p->p_fd; 2058 mutex_enter(&fd->fd_lock); 2059 for (i = 0; i < fd->fd_nfiles; i++) { 2060 if ((ff = fd->fd_ofiles[i]) == NULL) { 2061 continue; 2062 } 2063 mutex_enter(&ff->ff_lock); 2064 if ((fp = ff->ff_file) == NULL) { 2065 mutex_exit(&ff->ff_lock); 2066 continue; 2067 } 2068 if (len >= elem_size && elem_count > 0) { 2069 mutex_enter(&fp->f_lock); 2070 fill_file(&kf, fp, ff, i, p->p_pid); 2071 mutex_exit(&fp->f_lock); 2072 mutex_exit(&ff->ff_lock); 2073 mutex_exit(&fd->fd_lock); 2074 error = dcopyout(l, &kf, dp, out_size); 2075 mutex_enter(&fd->fd_lock); 2076 if (error) 2077 break; 2078 dp += elem_size; 2079 len -= elem_size; 2080 } else { 2081 mutex_exit(&ff->ff_lock); 2082 } 2083 if (elem_count > 0) { 2084 needed += elem_size; 2085 if (elem_count != INT_MAX) 2086 elem_count--; 2087 } 2088 } 2089 mutex_exit(&fd->fd_lock); 2090 2091 /* 2092 * Release reference to process. 2093 */ 2094 mutex_enter(proc_lock); 2095 rw_exit(&p->p_reflock); 2096 } 2097 mutex_exit(proc_lock); 2098 sysctl_relock(); 2099 break; 2100 default: 2101 return (EINVAL); 2102 } 2103 2104 if (oldp == NULL) 2105 needed += KERN_FILESLOP * elem_size; 2106 *oldlenp = needed; 2107 2108 return (error); 2109 } 2110 2111 static void 2112 fill_file(struct kinfo_file *kp, const file_t *fp, const fdfile_t *ff, 2113 int i, pid_t pid) 2114 { 2115 2116 memset(kp, 0, sizeof(*kp)); 2117 2118 kp->ki_fileaddr = PTRTOUINT64(fp); 2119 kp->ki_flag = fp->f_flag; 2120 kp->ki_iflags = fp->f_iflags; 2121 kp->ki_ftype = fp->f_type; 2122 kp->ki_count = fp->f_count; 2123 kp->ki_msgcount = fp->f_msgcount; 2124 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2125 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2126 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2127 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2128 kp->ki_foffset = fp->f_offset; 2129 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2130 2131 /* vnode information to glue this file to something */ 2132 if (fp->f_type == DTYPE_VNODE) { 2133 struct vnode *vp = (struct vnode *)fp->f_data; 2134 2135 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2136 kp->ki_vsize = vp->v_size; 2137 kp->ki_vtype = vp->v_type; 2138 kp->ki_vtag = vp->v_tag; 2139 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2140 } 2141 2142 /* process information when retrieved via KERN_FILE_BYPID */ 2143 if (ff != NULL) { 2144 kp->ki_pid = pid; 2145 kp->ki_fd = i; 2146 kp->ki_ofileflags = ff->ff_exclose; 2147 kp->ki_usecount = ff->ff_refcnt; 2148 } 2149 } 2150 2151 static int 2152 sysctl_doeproc(SYSCTLFN_ARGS) 2153 { 2154 struct eproc *eproc; 2155 struct kinfo_proc2 *kproc2; 2156 struct kinfo_proc *dp; 2157 struct proc *p, *next, *marker; 2158 char *where, *dp2; 2159 int type, op, arg, error; 2160 u_int elem_size, elem_count; 2161 size_t buflen, needed; 2162 bool match, zombie, mmmbrains; 2163 2164 if (namelen == 1 && name[0] == CTL_QUERY) 2165 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2166 2167 dp = oldp; 2168 dp2 = where = oldp; 2169 buflen = where != NULL ? *oldlenp : 0; 2170 error = 0; 2171 needed = 0; 2172 type = rnode->sysctl_num; 2173 2174 if (type == KERN_PROC) { 2175 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2176 return (EINVAL); 2177 op = name[0]; 2178 if (op != KERN_PROC_ALL) 2179 arg = name[1]; 2180 else 2181 arg = 0; /* Quell compiler warning */ 2182 elem_size = elem_count = 0; /* Ditto */ 2183 } else { 2184 if (namelen != 4) 2185 return (EINVAL); 2186 op = name[0]; 2187 arg = name[1]; 2188 elem_size = name[2]; 2189 elem_count = name[3]; 2190 } 2191 2192 sysctl_unlock(); 2193 2194 if (type == KERN_PROC) { 2195 eproc = kmem_alloc(sizeof(*eproc), KM_SLEEP); 2196 kproc2 = NULL; 2197 } else { 2198 eproc = NULL; 2199 kproc2 = kmem_alloc(sizeof(*kproc2), KM_SLEEP); 2200 } 2201 marker = kmem_alloc(sizeof(*marker), KM_SLEEP); 2202 2203 mutex_enter(proc_lock); 2204 mmmbrains = false; 2205 for (p = LIST_FIRST(&allproc);; p = next) { 2206 if (p == NULL) { 2207 if (!mmmbrains) { 2208 p = LIST_FIRST(&zombproc); 2209 mmmbrains = true; 2210 } 2211 if (p == NULL) 2212 break; 2213 } 2214 next = LIST_NEXT(p, p_list); 2215 2216 /* 2217 * Skip embryonic processes. 2218 */ 2219 if (p->p_stat == SIDL) 2220 continue; 2221 2222 mutex_enter(p->p_lock); 2223 error = kauth_authorize_process(l->l_cred, 2224 KAUTH_PROCESS_CANSEE, p, 2225 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENTRY), NULL, NULL); 2226 if (error != 0) { 2227 mutex_exit(p->p_lock); 2228 continue; 2229 } 2230 2231 /* 2232 * TODO - make more efficient (see notes below). 2233 * do by session. 2234 */ 2235 switch (op) { 2236 case KERN_PROC_PID: 2237 /* could do this with just a lookup */ 2238 match = (p->p_pid == (pid_t)arg); 2239 break; 2240 2241 case KERN_PROC_PGRP: 2242 /* could do this by traversing pgrp */ 2243 match = (p->p_pgrp->pg_id == (pid_t)arg); 2244 break; 2245 2246 case KERN_PROC_SESSION: 2247 match = (p->p_session->s_sid == (pid_t)arg); 2248 break; 2249 2250 case KERN_PROC_TTY: 2251 match = true; 2252 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2253 if ((p->p_lflag & PL_CONTROLT) == 0 || 2254 p->p_session->s_ttyp == NULL || 2255 p->p_session->s_ttyvp != NULL) { 2256 match = false; 2257 } 2258 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2259 p->p_session->s_ttyp == NULL) { 2260 if ((dev_t)arg != KERN_PROC_TTY_NODEV) { 2261 match = false; 2262 } 2263 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) { 2264 match = false; 2265 } 2266 break; 2267 2268 case KERN_PROC_UID: 2269 match = (kauth_cred_geteuid(p->p_cred) == (uid_t)arg); 2270 break; 2271 2272 case KERN_PROC_RUID: 2273 match = (kauth_cred_getuid(p->p_cred) == (uid_t)arg); 2274 break; 2275 2276 case KERN_PROC_GID: 2277 match = (kauth_cred_getegid(p->p_cred) == (uid_t)arg); 2278 break; 2279 2280 case KERN_PROC_RGID: 2281 match = (kauth_cred_getgid(p->p_cred) == (uid_t)arg); 2282 break; 2283 2284 case KERN_PROC_ALL: 2285 match = true; 2286 /* allow everything */ 2287 break; 2288 2289 default: 2290 error = EINVAL; 2291 mutex_exit(p->p_lock); 2292 goto cleanup; 2293 } 2294 if (!match) { 2295 mutex_exit(p->p_lock); 2296 continue; 2297 } 2298 2299 /* 2300 * Grab a hold on the process. 2301 */ 2302 if (mmmbrains) { 2303 zombie = true; 2304 } else { 2305 zombie = !rw_tryenter(&p->p_reflock, RW_READER); 2306 } 2307 if (zombie) { 2308 LIST_INSERT_AFTER(p, marker, p_list); 2309 } 2310 2311 if (type == KERN_PROC) { 2312 if (buflen >= sizeof(struct kinfo_proc)) { 2313 fill_eproc(p, eproc, zombie); 2314 mutex_exit(p->p_lock); 2315 mutex_exit(proc_lock); 2316 error = dcopyout(l, p, &dp->kp_proc, 2317 sizeof(struct proc)); 2318 mutex_enter(proc_lock); 2319 if (error) { 2320 goto bah; 2321 } 2322 error = dcopyout(l, eproc, &dp->kp_eproc, 2323 sizeof(*eproc)); 2324 if (error) { 2325 goto bah; 2326 } 2327 dp++; 2328 buflen -= sizeof(struct kinfo_proc); 2329 } else { 2330 mutex_exit(p->p_lock); 2331 } 2332 needed += sizeof(struct kinfo_proc); 2333 } else { /* KERN_PROC2 */ 2334 if (buflen >= elem_size && elem_count > 0) { 2335 fill_kproc2(p, kproc2, zombie); 2336 mutex_exit(p->p_lock); 2337 mutex_exit(proc_lock); 2338 /* 2339 * Copy out elem_size, but not larger than 2340 * the size of a struct kinfo_proc2. 2341 */ 2342 error = dcopyout(l, kproc2, dp2, 2343 min(sizeof(*kproc2), elem_size)); 2344 mutex_enter(proc_lock); 2345 if (error) { 2346 goto bah; 2347 } 2348 dp2 += elem_size; 2349 buflen -= elem_size; 2350 elem_count--; 2351 } else { 2352 mutex_exit(p->p_lock); 2353 } 2354 needed += elem_size; 2355 } 2356 2357 /* 2358 * Release reference to process. 2359 */ 2360 if (zombie) { 2361 next = LIST_NEXT(marker, p_list); 2362 LIST_REMOVE(marker, p_list); 2363 } else { 2364 rw_exit(&p->p_reflock); 2365 } 2366 } 2367 mutex_exit(proc_lock); 2368 2369 if (where != NULL) { 2370 if (type == KERN_PROC) 2371 *oldlenp = (char *)dp - where; 2372 else 2373 *oldlenp = dp2 - where; 2374 if (needed > *oldlenp) { 2375 error = ENOMEM; 2376 goto out; 2377 } 2378 } else { 2379 needed += KERN_PROCSLOP; 2380 *oldlenp = needed; 2381 } 2382 if (kproc2) 2383 kmem_free(kproc2, sizeof(*kproc2)); 2384 if (eproc) 2385 kmem_free(eproc, sizeof(*eproc)); 2386 if (marker) 2387 kmem_free(marker, sizeof(*marker)); 2388 sysctl_relock(); 2389 return 0; 2390 bah: 2391 if (zombie) 2392 LIST_REMOVE(marker, p_list); 2393 else 2394 rw_exit(&p->p_reflock); 2395 cleanup: 2396 mutex_exit(proc_lock); 2397 out: 2398 if (kproc2) 2399 kmem_free(kproc2, sizeof(*kproc2)); 2400 if (eproc) 2401 kmem_free(eproc, sizeof(*eproc)); 2402 if (marker) 2403 kmem_free(marker, sizeof(*marker)); 2404 sysctl_relock(); 2405 return error; 2406 } 2407 2408 /* 2409 * sysctl helper routine for kern.proc_args pseudo-subtree. 2410 */ 2411 static int 2412 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2413 { 2414 struct ps_strings pss; 2415 struct proc *p; 2416 size_t len, i; 2417 struct uio auio; 2418 struct iovec aiov; 2419 pid_t pid; 2420 int nargv, type, error, argvlen; 2421 char *arg; 2422 char **argv = NULL; 2423 char *tmp; 2424 struct vmspace *vmspace; 2425 vaddr_t psstr_addr; 2426 vaddr_t offsetn; 2427 vaddr_t offsetv; 2428 2429 if (namelen == 1 && name[0] == CTL_QUERY) 2430 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2431 2432 if (newp != NULL || namelen != 2) 2433 return (EINVAL); 2434 pid = name[0]; 2435 type = name[1]; 2436 argv = NULL; 2437 argvlen = 0; 2438 2439 switch (type) { 2440 case KERN_PROC_ARGV: 2441 case KERN_PROC_NARGV: 2442 case KERN_PROC_ENV: 2443 case KERN_PROC_NENV: 2444 /* ok */ 2445 break; 2446 default: 2447 return (EINVAL); 2448 } 2449 2450 sysctl_unlock(); 2451 2452 /* check pid */ 2453 mutex_enter(proc_lock); 2454 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2455 error = EINVAL; 2456 goto out_locked; 2457 } 2458 mutex_enter(p->p_lock); 2459 2460 /* Check permission. */ 2461 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2462 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2463 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ARGS), NULL, NULL); 2464 else if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) 2465 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2466 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENV), NULL, NULL); 2467 else 2468 error = EINVAL; /* XXXGCC */ 2469 if (error) { 2470 mutex_exit(p->p_lock); 2471 goto out_locked; 2472 } 2473 2474 if (oldp == NULL) { 2475 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2476 *oldlenp = sizeof (int); 2477 else 2478 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2479 error = 0; 2480 mutex_exit(p->p_lock); 2481 goto out_locked; 2482 } 2483 2484 /* 2485 * Zombies don't have a stack, so we can't read their psstrings. 2486 * System processes also don't have a user stack. 2487 */ 2488 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2489 error = EINVAL; 2490 mutex_exit(p->p_lock); 2491 goto out_locked; 2492 } 2493 2494 /* 2495 * Lock the process down in memory. 2496 */ 2497 psstr_addr = (vaddr_t)p->p_psstr; 2498 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2499 offsetn = p->p_psnargv; 2500 offsetv = p->p_psargv; 2501 } else { 2502 offsetn = p->p_psnenv; 2503 offsetv = p->p_psenv; 2504 } 2505 vmspace = p->p_vmspace; 2506 uvmspace_addref(vmspace); 2507 mutex_exit(p->p_lock); 2508 mutex_exit(proc_lock); 2509 2510 /* 2511 * Allocate a temporary buffer to hold the arguments. 2512 */ 2513 arg = kmem_alloc(PAGE_SIZE, KM_SLEEP); 2514 2515 /* 2516 * Read in the ps_strings structure. 2517 */ 2518 aiov.iov_base = &pss; 2519 aiov.iov_len = sizeof(pss); 2520 auio.uio_iov = &aiov; 2521 auio.uio_iovcnt = 1; 2522 auio.uio_offset = psstr_addr; 2523 auio.uio_resid = sizeof(pss); 2524 auio.uio_rw = UIO_READ; 2525 UIO_SETUP_SYSSPACE(&auio); 2526 error = uvm_io(&vmspace->vm_map, &auio); 2527 if (error) 2528 goto done; 2529 2530 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2531 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2532 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2533 *oldlenp = sizeof(nargv); 2534 goto done; 2535 } 2536 /* 2537 * Now read the address of the argument vector. 2538 */ 2539 switch (type) { 2540 case KERN_PROC_ARGV: 2541 /* FALLTHROUGH */ 2542 case KERN_PROC_ENV: 2543 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2544 break; 2545 default: 2546 error = EINVAL; 2547 goto done; 2548 } 2549 2550 #ifdef COMPAT_NETBSD32 2551 if (p->p_flag & PK_32) 2552 len = sizeof(netbsd32_charp) * nargv; 2553 else 2554 #endif 2555 len = sizeof(char *) * nargv; 2556 2557 if ((argvlen = len) != 0) 2558 argv = kmem_alloc(len, KM_SLEEP); 2559 2560 aiov.iov_base = argv; 2561 aiov.iov_len = len; 2562 auio.uio_iov = &aiov; 2563 auio.uio_iovcnt = 1; 2564 auio.uio_offset = (off_t)(unsigned long)tmp; 2565 auio.uio_resid = len; 2566 auio.uio_rw = UIO_READ; 2567 UIO_SETUP_SYSSPACE(&auio); 2568 error = uvm_io(&vmspace->vm_map, &auio); 2569 if (error) 2570 goto done; 2571 2572 /* 2573 * Now copy each string. 2574 */ 2575 len = 0; /* bytes written to user buffer */ 2576 for (i = 0; i < nargv; i++) { 2577 int finished = 0; 2578 vaddr_t base; 2579 size_t xlen; 2580 int j; 2581 2582 #ifdef COMPAT_NETBSD32 2583 if (p->p_flag & PK_32) { 2584 netbsd32_charp *argv32; 2585 2586 argv32 = (netbsd32_charp *)argv; 2587 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2588 } else 2589 #endif 2590 base = (vaddr_t)argv[i]; 2591 2592 /* 2593 * The program has messed around with its arguments, 2594 * possibly deleting some, and replacing them with 2595 * NULL's. Treat this as the last argument and not 2596 * a failure. 2597 */ 2598 if (base == 0) 2599 break; 2600 2601 while (!finished) { 2602 xlen = PAGE_SIZE - (base & PAGE_MASK); 2603 2604 aiov.iov_base = arg; 2605 aiov.iov_len = PAGE_SIZE; 2606 auio.uio_iov = &aiov; 2607 auio.uio_iovcnt = 1; 2608 auio.uio_offset = base; 2609 auio.uio_resid = xlen; 2610 auio.uio_rw = UIO_READ; 2611 UIO_SETUP_SYSSPACE(&auio); 2612 error = uvm_io(&vmspace->vm_map, &auio); 2613 if (error) 2614 goto done; 2615 2616 /* Look for the end of the string */ 2617 for (j = 0; j < xlen; j++) { 2618 if (arg[j] == '\0') { 2619 xlen = j + 1; 2620 finished = 1; 2621 break; 2622 } 2623 } 2624 2625 /* Check for user buffer overflow */ 2626 if (len + xlen > *oldlenp) { 2627 finished = 1; 2628 if (len > *oldlenp) 2629 xlen = 0; 2630 else 2631 xlen = *oldlenp - len; 2632 } 2633 2634 /* Copyout the page */ 2635 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2636 if (error) 2637 goto done; 2638 2639 len += xlen; 2640 base += xlen; 2641 } 2642 } 2643 *oldlenp = len; 2644 2645 done: 2646 if (argvlen != 0) 2647 kmem_free(argv, argvlen); 2648 uvmspace_free(vmspace); 2649 kmem_free(arg, PAGE_SIZE); 2650 sysctl_relock(); 2651 return error; 2652 2653 out_locked: 2654 mutex_exit(proc_lock); 2655 sysctl_relock(); 2656 return error; 2657 } 2658 2659 static int 2660 sysctl_security_setidcore(SYSCTLFN_ARGS) 2661 { 2662 int newsize, error; 2663 struct sysctlnode node; 2664 2665 node = *rnode; 2666 node.sysctl_data = &newsize; 2667 newsize = *(int *)rnode->sysctl_data; 2668 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2669 if (error || newp == NULL) 2670 return error; 2671 2672 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2673 0, NULL, NULL, NULL)) 2674 return (EPERM); 2675 2676 *(int *)rnode->sysctl_data = newsize; 2677 2678 return 0; 2679 } 2680 2681 static int 2682 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2683 { 2684 int error; 2685 char *newsetidcorename; 2686 struct sysctlnode node; 2687 2688 newsetidcorename = PNBUF_GET(); 2689 node = *rnode; 2690 node.sysctl_data = newsetidcorename; 2691 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2692 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2693 if (error || newp == NULL) { 2694 goto out; 2695 } 2696 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2697 0, NULL, NULL, NULL)) { 2698 error = EPERM; 2699 goto out; 2700 } 2701 if (strlen(newsetidcorename) == 0) { 2702 error = EINVAL; 2703 goto out; 2704 } 2705 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2706 out: 2707 PNBUF_PUT(newsetidcorename); 2708 return error; 2709 } 2710 2711 /* 2712 * sysctl helper routine for kern.cp_id node. Maps cpus to their 2713 * cpuids. 2714 */ 2715 static int 2716 sysctl_kern_cpid(SYSCTLFN_ARGS) 2717 { 2718 struct sysctlnode node = *rnode; 2719 uint64_t *cp_id = NULL; 2720 int error, n = ncpu; 2721 struct cpu_info *ci; 2722 CPU_INFO_ITERATOR cii; 2723 2724 /* 2725 * Here you may either retrieve a single cpu id or the whole 2726 * set. The size you get back when probing depends on what 2727 * you ask for. 2728 */ 2729 switch (namelen) { 2730 case 0: 2731 node.sysctl_size = n * sizeof(uint64_t); 2732 n = -2; /* ALL */ 2733 break; 2734 case 1: 2735 if (name[0] < 0 || name[0] >= n) 2736 return (ENOENT); /* ENOSUCHPROCESSOR */ 2737 node.sysctl_size = sizeof(uint64_t); 2738 n = name[0]; 2739 /* 2740 * adjust these so that sysctl_lookup() will be happy 2741 */ 2742 name++; 2743 namelen--; 2744 break; 2745 default: 2746 return (EINVAL); 2747 } 2748 2749 cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP); 2750 if (cp_id == NULL) 2751 return (ENOMEM); 2752 node.sysctl_data = cp_id; 2753 memset(cp_id, 0, node.sysctl_size); 2754 2755 for (CPU_INFO_FOREACH(cii, ci)) { 2756 if (n <= 0) 2757 cp_id[0] = cpu_index(ci); 2758 /* 2759 * if a specific processor was requested and we just 2760 * did it, we're done here 2761 */ 2762 if (n == 0) 2763 break; 2764 /* 2765 * if doing "all", skip to next cp_id slot for next processor 2766 */ 2767 if (n == -2) 2768 cp_id++; 2769 /* 2770 * if we're doing a specific processor, we're one 2771 * processor closer 2772 */ 2773 if (n > 0) 2774 n--; 2775 } 2776 2777 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2778 kmem_free(node.sysctl_data, node.sysctl_size); 2779 return (error); 2780 } 2781 2782 /* 2783 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 2784 * calculate on the fly taking into account integer overflow and the 2785 * current wired count. 2786 */ 2787 static int 2788 sysctl_hw_usermem(SYSCTLFN_ARGS) 2789 { 2790 u_int ui; 2791 u_quad_t uq; 2792 struct sysctlnode node; 2793 2794 node = *rnode; 2795 switch (rnode->sysctl_num) { 2796 case HW_USERMEM: 2797 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2798 ui = UINT_MAX; 2799 else 2800 ui *= PAGE_SIZE; 2801 node.sysctl_data = &ui; 2802 break; 2803 case HW_USERMEM64: 2804 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2805 node.sysctl_data = &uq; 2806 break; 2807 default: 2808 return (EINVAL); 2809 } 2810 2811 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2812 } 2813 2814 /* 2815 * sysctl helper routine for kern.cnmagic node. Pulls the old value 2816 * out, encoded, and stuffs the new value in for decoding. 2817 */ 2818 static int 2819 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2820 { 2821 char magic[CNS_LEN]; 2822 int error; 2823 struct sysctlnode node; 2824 2825 if (oldp) 2826 cn_get_magic(magic, CNS_LEN); 2827 node = *rnode; 2828 node.sysctl_data = &magic[0]; 2829 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2830 if (error || newp == NULL) 2831 return (error); 2832 2833 return (cn_set_magic(magic)); 2834 } 2835 2836 /* 2837 * ******************************************************************** 2838 * section 3: public helper routines that are used for more than one 2839 * node 2840 * ******************************************************************** 2841 */ 2842 2843 /* 2844 * sysctl helper routine for the kern.root_device node and some ports' 2845 * machdep.root_device nodes. 2846 */ 2847 int 2848 sysctl_root_device(SYSCTLFN_ARGS) 2849 { 2850 struct sysctlnode node; 2851 2852 node = *rnode; 2853 node.sysctl_data = root_device->dv_xname; 2854 node.sysctl_size = strlen(device_xname(root_device)) + 1; 2855 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2856 } 2857 2858 /* 2859 * sysctl helper routine for kern.consdev, dependent on the current 2860 * state of the console. Also used for machdep.console_device on some 2861 * ports. 2862 */ 2863 int 2864 sysctl_consdev(SYSCTLFN_ARGS) 2865 { 2866 dev_t consdev; 2867 struct sysctlnode node; 2868 2869 if (cn_tab != NULL) 2870 consdev = cn_tab->cn_dev; 2871 else 2872 consdev = NODEV; 2873 node = *rnode; 2874 node.sysctl_data = &consdev; 2875 node.sysctl_size = sizeof(consdev); 2876 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2877 } 2878 2879 /* 2880 * ******************************************************************** 2881 * section 4: support for some helpers 2882 * ******************************************************************** 2883 */ 2884 /* 2885 * Find the most ``active'' lwp of a process and return it for ps display 2886 * purposes 2887 */ 2888 static struct lwp * 2889 proc_active_lwp(struct proc *p) 2890 { 2891 static const int ostat[] = { 2892 0, 2893 2, /* LSIDL */ 2894 6, /* LSRUN */ 2895 5, /* LSSLEEP */ 2896 4, /* LSSTOP */ 2897 0, /* LSZOMB */ 2898 1, /* LSDEAD */ 2899 7, /* LSONPROC */ 2900 3 /* LSSUSPENDED */ 2901 }; 2902 2903 struct lwp *l, *lp = NULL; 2904 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2905 KASSERT(l->l_stat >= 0 && l->l_stat < __arraycount(ostat)); 2906 if (lp == NULL || 2907 ostat[l->l_stat] > ostat[lp->l_stat] || 2908 (ostat[l->l_stat] == ostat[lp->l_stat] && 2909 l->l_cpticks > lp->l_cpticks)) { 2910 lp = l; 2911 continue; 2912 } 2913 } 2914 return lp; 2915 } 2916 2917 2918 /* 2919 * Fill in a kinfo_proc2 structure for the specified process. 2920 */ 2921 static void 2922 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki, bool zombie) 2923 { 2924 struct tty *tp; 2925 struct lwp *l, *l2; 2926 struct timeval ut, st, rt; 2927 sigset_t ss1, ss2; 2928 struct rusage ru; 2929 struct vmspace *vm; 2930 2931 KASSERT(mutex_owned(proc_lock)); 2932 KASSERT(mutex_owned(p->p_lock)); 2933 2934 sigemptyset(&ss1); 2935 sigemptyset(&ss2); 2936 memset(ki, 0, sizeof(*ki)); 2937 2938 ki->p_paddr = PTRTOUINT64(p); 2939 ki->p_fd = PTRTOUINT64(p->p_fd); 2940 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2941 ki->p_stats = PTRTOUINT64(p->p_stats); 2942 ki->p_limit = PTRTOUINT64(p->p_limit); 2943 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2944 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2945 ki->p_sess = PTRTOUINT64(p->p_session); 2946 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2947 ki->p_ru = PTRTOUINT64(&p->p_stats->p_ru); 2948 ki->p_eflag = 0; 2949 ki->p_exitsig = p->p_exitsig; 2950 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2951 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2952 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2953 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2954 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2955 ki->p_pid = p->p_pid; 2956 if (p->p_pptr) 2957 ki->p_ppid = p->p_pptr->p_pid; 2958 else 2959 ki->p_ppid = 0; 2960 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2961 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2962 ki->p_gid = kauth_cred_getegid(p->p_cred); 2963 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2964 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2965 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2966 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2967 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2968 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0])), 2969 UIO_SYSSPACE); 2970 2971 ki->p_uticks = p->p_uticks; 2972 ki->p_sticks = p->p_sticks; 2973 ki->p_iticks = p->p_iticks; 2974 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2975 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2976 ki->p_traceflag = p->p_traceflag; 2977 2978 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2979 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2980 2981 ki->p_cpticks = 0; 2982 ki->p_pctcpu = p->p_pctcpu; 2983 ki->p_estcpu = 0; 2984 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2985 ki->p_realstat = p->p_stat; 2986 ki->p_nice = p->p_nice; 2987 ki->p_xstat = p->p_xstat; 2988 ki->p_acflag = p->p_acflag; 2989 2990 strncpy(ki->p_comm, p->p_comm, 2991 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2992 strncpy(ki->p_ename, p->p_emul->e_name, sizeof(ki->p_ename)); 2993 2994 ki->p_nlwps = p->p_nlwps; 2995 ki->p_realflag = ki->p_flag; 2996 2997 if (p->p_stat != SIDL && !P_ZOMBIE(p) && !zombie) { 2998 vm = p->p_vmspace; 2999 ki->p_vm_rssize = vm_resident_count(vm); 3000 ki->p_vm_tsize = vm->vm_tsize; 3001 ki->p_vm_dsize = vm->vm_dsize; 3002 ki->p_vm_ssize = vm->vm_ssize; 3003 3004 /* Pick the primary (first) LWP */ 3005 l = proc_active_lwp(p); 3006 KASSERT(l != NULL); 3007 lwp_lock(l); 3008 ki->p_nrlwps = p->p_nrlwps; 3009 ki->p_forw = 0; 3010 ki->p_back = 0; 3011 ki->p_addr = PTRTOUINT64(l->l_addr); 3012 ki->p_stat = l->l_stat; 3013 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 3014 ki->p_swtime = l->l_swtime; 3015 ki->p_slptime = l->l_slptime; 3016 if (l->l_stat == LSONPROC) 3017 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3018 else 3019 ki->p_schedflags = 0; 3020 ki->p_holdcnt = l->l_holdcnt; 3021 ki->p_priority = lwp_eprio(l); 3022 ki->p_usrpri = l->l_priority; 3023 if (l->l_wchan) 3024 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 3025 ki->p_wchan = PTRTOUINT64(l->l_wchan); 3026 ki->p_cpuid = cpu_index(l->l_cpu); 3027 lwp_unlock(l); 3028 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 3029 /* This is hardly correct, but... */ 3030 sigplusset(&l->l_sigpend.sp_set, &ss1); 3031 sigplusset(&l->l_sigmask, &ss2); 3032 ki->p_cpticks += l->l_cpticks; 3033 ki->p_pctcpu += l->l_pctcpu; 3034 ki->p_estcpu += l->l_estcpu; 3035 } 3036 } 3037 sigplusset(&p->p_sigpend.sp_set, &ss2); 3038 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 3039 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 3040 3041 if (p->p_session != NULL) { 3042 ki->p_sid = p->p_session->s_sid; 3043 ki->p__pgid = p->p_pgrp->pg_id; 3044 if (p->p_session->s_ttyvp) 3045 ki->p_eflag |= EPROC_CTTY; 3046 if (SESS_LEADER(p)) 3047 ki->p_eflag |= EPROC_SLEADER; 3048 strncpy(ki->p_login, p->p_session->s_login, 3049 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 3050 ki->p_jobc = p->p_pgrp->pg_jobc; 3051 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 3052 ki->p_tdev = tp->t_dev; 3053 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3054 ki->p_tsess = PTRTOUINT64(tp->t_session); 3055 } else { 3056 ki->p_tdev = NODEV; 3057 } 3058 } 3059 3060 if (!P_ZOMBIE(p) && !zombie) { 3061 ki->p_uvalid = 1; 3062 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 3063 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 3064 3065 calcru(p, &ut, &st, NULL, &rt); 3066 ki->p_rtime_sec = rt.tv_sec; 3067 ki->p_rtime_usec = rt.tv_usec; 3068 ki->p_uutime_sec = ut.tv_sec; 3069 ki->p_uutime_usec = ut.tv_usec; 3070 ki->p_ustime_sec = st.tv_sec; 3071 ki->p_ustime_usec = st.tv_usec; 3072 3073 memcpy(&ru, &p->p_stats->p_ru, sizeof(ru)); 3074 ki->p_uru_nvcsw = 0; 3075 ki->p_uru_nivcsw = 0; 3076 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 3077 ki->p_uru_nvcsw += (l2->l_ncsw - l2->l_nivcsw); 3078 ki->p_uru_nivcsw += l2->l_nivcsw; 3079 ruadd(&ru, &l2->l_ru); 3080 } 3081 ki->p_uru_maxrss = ru.ru_maxrss; 3082 ki->p_uru_ixrss = ru.ru_ixrss; 3083 ki->p_uru_idrss = ru.ru_idrss; 3084 ki->p_uru_isrss = ru.ru_isrss; 3085 ki->p_uru_minflt = ru.ru_minflt; 3086 ki->p_uru_majflt = ru.ru_majflt; 3087 ki->p_uru_nswap = ru.ru_nswap; 3088 ki->p_uru_inblock = ru.ru_inblock; 3089 ki->p_uru_oublock = ru.ru_oublock; 3090 ki->p_uru_msgsnd = ru.ru_msgsnd; 3091 ki->p_uru_msgrcv = ru.ru_msgrcv; 3092 ki->p_uru_nsignals = ru.ru_nsignals; 3093 3094 timeradd(&p->p_stats->p_cru.ru_utime, 3095 &p->p_stats->p_cru.ru_stime, &ut); 3096 ki->p_uctime_sec = ut.tv_sec; 3097 ki->p_uctime_usec = ut.tv_usec; 3098 } 3099 } 3100 3101 /* 3102 * Fill in a kinfo_lwp structure for the specified lwp. 3103 */ 3104 static void 3105 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3106 { 3107 struct proc *p = l->l_proc; 3108 struct timeval tv; 3109 3110 KASSERT(lwp_locked(l, NULL)); 3111 3112 kl->l_forw = 0; 3113 kl->l_back = 0; 3114 kl->l_laddr = PTRTOUINT64(l); 3115 kl->l_addr = PTRTOUINT64(l->l_addr); 3116 kl->l_stat = l->l_stat; 3117 kl->l_lid = l->l_lid; 3118 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 3119 kl->l_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 3120 3121 kl->l_swtime = l->l_swtime; 3122 kl->l_slptime = l->l_slptime; 3123 if (l->l_stat == LSONPROC) 3124 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3125 else 3126 kl->l_schedflags = 0; 3127 kl->l_holdcnt = l->l_holdcnt; 3128 kl->l_priority = lwp_eprio(l); 3129 kl->l_usrpri = l->l_priority; 3130 if (l->l_wchan) 3131 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3132 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3133 kl->l_cpuid = cpu_index(l->l_cpu); 3134 bintime2timeval(&l->l_rtime, &tv); 3135 kl->l_rtime_sec = tv.tv_sec; 3136 kl->l_rtime_usec = tv.tv_usec; 3137 kl->l_cpticks = l->l_cpticks; 3138 kl->l_pctcpu = l->l_pctcpu; 3139 kl->l_pid = p->p_pid; 3140 if (l->l_name == NULL) 3141 kl->l_name[0] = '\0'; 3142 else 3143 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 3144 } 3145 3146 /* 3147 * Fill in an eproc structure for the specified process. 3148 */ 3149 void 3150 fill_eproc(struct proc *p, struct eproc *ep, bool zombie) 3151 { 3152 struct tty *tp; 3153 struct lwp *l; 3154 3155 KASSERT(mutex_owned(proc_lock)); 3156 KASSERT(mutex_owned(p->p_lock)); 3157 3158 memset(ep, 0, sizeof(*ep)); 3159 3160 ep->e_paddr = p; 3161 ep->e_sess = p->p_session; 3162 if (p->p_cred) { 3163 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 3164 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 3165 } 3166 if (p->p_stat != SIDL && !P_ZOMBIE(p) && !zombie) { 3167 struct vmspace *vm = p->p_vmspace; 3168 3169 ep->e_vm.vm_rssize = vm_resident_count(vm); 3170 ep->e_vm.vm_tsize = vm->vm_tsize; 3171 ep->e_vm.vm_dsize = vm->vm_dsize; 3172 ep->e_vm.vm_ssize = vm->vm_ssize; 3173 3174 /* Pick the primary (first) LWP */ 3175 l = proc_active_lwp(p); 3176 KASSERT(l != NULL); 3177 lwp_lock(l); 3178 if (l->l_wchan) 3179 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3180 lwp_unlock(l); 3181 } 3182 if (p->p_pptr) 3183 ep->e_ppid = p->p_pptr->p_pid; 3184 if (p->p_pgrp && p->p_session) { 3185 ep->e_pgid = p->p_pgrp->pg_id; 3186 ep->e_jobc = p->p_pgrp->pg_jobc; 3187 ep->e_sid = p->p_session->s_sid; 3188 if ((p->p_lflag & PL_CONTROLT) && 3189 (tp = ep->e_sess->s_ttyp)) { 3190 ep->e_tdev = tp->t_dev; 3191 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3192 ep->e_tsess = tp->t_session; 3193 } else 3194 ep->e_tdev = NODEV; 3195 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3196 if (SESS_LEADER(p)) 3197 ep->e_flag |= EPROC_SLEADER; 3198 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3199 } 3200 ep->e_xsize = ep->e_xrssize = 0; 3201 ep->e_xccount = ep->e_xswrss = 0; 3202 } 3203 3204 u_int 3205 sysctl_map_flags(const u_int *map, u_int word) 3206 { 3207 u_int rv; 3208 3209 for (rv = 0; *map != 0; map += 2) 3210 if ((word & map[0]) != 0) 3211 rv |= map[1]; 3212 3213 return rv; 3214 } 3215
Indexes created Tue Sep 23 23:09:58 GMT 2025