init_sysctl.c revision 1.144
1 /* $NetBSD: init_sysctl.c,v 1.144 2008/07/15 22:25:30 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 1.144 2008/07/15 22:25:30 christos Exp $"); 34 35 #include "opt_sysv.h" 36 #include "opt_posix.h" 37 #include "opt_compat_netbsd32.h" 38 #include "pty.h" 39 #include "rnd.h" 40 41 #include <sys/types.h> 42 #include <sys/param.h> 43 #include <sys/sysctl.h> 44 #include <sys/cpu.h> 45 #include <sys/errno.h> 46 #include <sys/systm.h> 47 #include <sys/kernel.h> 48 #include <sys/unistd.h> 49 #include <sys/disklabel.h> 50 #include <sys/rnd.h> 51 #include <sys/vnode.h> 52 #include <sys/mount.h> 53 #include <sys/namei.h> 54 #include <sys/msgbuf.h> 55 #include <dev/cons.h> 56 #include <sys/socketvar.h> 57 #include <sys/file.h> 58 #include <sys/filedesc.h> 59 #include <sys/tty.h> 60 #include <sys/malloc.h> 61 #include <sys/resource.h> 62 #include <sys/resourcevar.h> 63 #include <sys/exec.h> 64 #include <sys/conf.h> 65 #include <sys/device.h> 66 #include <sys/stat.h> 67 #include <sys/kauth.h> 68 #include <sys/ktrace.h> 69 70 #include <miscfs/specfs/specdev.h> 71 72 #ifdef COMPAT_NETBSD32 73 #include <compat/netbsd32/netbsd32.h> 74 #endif 75 76 #include <sys/cpu.h> 77 78 /* XXX this should not be here */ 79 int security_setidcore_dump; 80 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 81 uid_t security_setidcore_owner = 0; 82 gid_t security_setidcore_group = 0; 83 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 84 85 static const u_int sysctl_flagmap[] = { 86 PK_ADVLOCK, P_ADVLOCK, 87 PK_EXEC, P_EXEC, 88 PK_NOCLDWAIT, P_NOCLDWAIT, 89 PK_32, P_32, 90 PK_CLDSIGIGN, P_CLDSIGIGN, 91 PK_SUGID, P_SUGID, 92 0 93 }; 94 95 static const u_int sysctl_sflagmap[] = { 96 PS_NOCLDSTOP, P_NOCLDSTOP, 97 PS_WEXIT, P_WEXIT, 98 PS_STOPFORK, P_STOPFORK, 99 PS_STOPEXEC, P_STOPEXEC, 100 PS_STOPEXIT, P_STOPEXIT, 101 0 102 }; 103 104 static const u_int sysctl_slflagmap[] = { 105 PSL_TRACED, P_TRACED, 106 PSL_FSTRACE, P_FSTRACE, 107 PSL_CHTRACED, P_CHTRACED, 108 PSL_SYSCALL, P_SYSCALL, 109 0 110 }; 111 112 static const u_int sysctl_lflagmap[] = { 113 PL_CONTROLT, P_CONTROLT, 114 PL_PPWAIT, P_PPWAIT, 115 0 116 }; 117 118 static const u_int sysctl_stflagmap[] = { 119 PST_PROFIL, P_PROFIL, 120 0 121 122 }; 123 124 static const u_int sysctl_lwpflagmap[] = { 125 LW_INMEM, P_INMEM, 126 LW_SINTR, P_SINTR, 127 LW_SYSTEM, P_SYSTEM, 128 0 129 }; 130 131 static const u_int sysctl_lwpprflagmap[] = { 132 LPR_DETACHED, L_DETACHED, 133 0 134 }; 135 136 /* 137 * try over estimating by 5 procs/lwps 138 */ 139 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 140 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 141 142 static int dcopyout(struct lwp *, const void *, void *, size_t); 143 144 static int 145 dcopyout(struct lwp *l, const void *kaddr, void *uaddr, size_t len) 146 { 147 int error; 148 149 error = copyout(kaddr, uaddr, len); 150 ktrmibio(-1, UIO_READ, uaddr, len, error); 151 152 return error; 153 } 154 155 #ifdef DIAGNOSTIC 156 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 157 #endif 158 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 159 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 160 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 161 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 162 static int sysctl_setlen(SYSCTLFN_PROTO); 163 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 164 static int sysctl_kern_file(SYSCTLFN_PROTO); 165 static int sysctl_msgbuf(SYSCTLFN_PROTO); 166 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 167 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 168 #if NPTY > 0 169 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 170 #endif /* NPTY > 0 */ 171 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 172 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 173 static int sysctl_kern_arnd(SYSCTLFN_PROTO); 174 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 175 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 176 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 177 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 178 static int sysctl_kern_file2(SYSCTLFN_PROTO); 179 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 180 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 181 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 182 static int sysctl_doeproc(SYSCTLFN_PROTO); 183 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 184 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 185 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 186 187 static u_int sysctl_map_flags(const u_int *, u_int); 188 static void fill_kproc2(struct proc *, struct kinfo_proc2 *, bool); 189 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 190 static void fill_file(struct kinfo_file *, const file_t *, const fdfile_t *, 191 int, pid_t); 192 193 /* 194 * ******************************************************************** 195 * section 1: setup routines 196 * ******************************************************************** 197 * These functions are stuffed into a link set for sysctl setup 198 * functions. They're never called or referenced from anywhere else. 199 * ******************************************************************** 200 */ 201 202 /* 203 * sets up the base nodes... 204 */ 205 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 206 { 207 208 sysctl_createv(clog, 0, NULL, NULL, 209 CTLFLAG_PERMANENT, 210 CTLTYPE_NODE, "kern", 211 SYSCTL_DESCR("High kernel"), 212 NULL, 0, NULL, 0, 213 CTL_KERN, CTL_EOL); 214 sysctl_createv(clog, 0, NULL, NULL, 215 CTLFLAG_PERMANENT, 216 CTLTYPE_NODE, "vm", 217 SYSCTL_DESCR("Virtual memory"), 218 NULL, 0, NULL, 0, 219 CTL_VM, CTL_EOL); 220 sysctl_createv(clog, 0, NULL, NULL, 221 CTLFLAG_PERMANENT, 222 CTLTYPE_NODE, "vfs", 223 SYSCTL_DESCR("Filesystem"), 224 NULL, 0, NULL, 0, 225 CTL_VFS, CTL_EOL); 226 sysctl_createv(clog, 0, NULL, NULL, 227 CTLFLAG_PERMANENT, 228 CTLTYPE_NODE, "net", 229 SYSCTL_DESCR("Networking"), 230 NULL, 0, NULL, 0, 231 CTL_NET, CTL_EOL); 232 sysctl_createv(clog, 0, NULL, NULL, 233 CTLFLAG_PERMANENT, 234 CTLTYPE_NODE, "debug", 235 SYSCTL_DESCR("Debugging"), 236 NULL, 0, NULL, 0, 237 CTL_DEBUG, CTL_EOL); 238 sysctl_createv(clog, 0, NULL, NULL, 239 CTLFLAG_PERMANENT, 240 CTLTYPE_NODE, "hw", 241 SYSCTL_DESCR("Generic CPU, I/O"), 242 NULL, 0, NULL, 0, 243 CTL_HW, CTL_EOL); 244 sysctl_createv(clog, 0, NULL, NULL, 245 CTLFLAG_PERMANENT, 246 CTLTYPE_NODE, "machdep", 247 SYSCTL_DESCR("Machine dependent"), 248 NULL, 0, NULL, 0, 249 CTL_MACHDEP, CTL_EOL); 250 /* 251 * this node is inserted so that the sysctl nodes in libc can 252 * operate. 253 */ 254 sysctl_createv(clog, 0, NULL, NULL, 255 CTLFLAG_PERMANENT, 256 CTLTYPE_NODE, "user", 257 SYSCTL_DESCR("User-level"), 258 NULL, 0, NULL, 0, 259 CTL_USER, CTL_EOL); 260 sysctl_createv(clog, 0, NULL, NULL, 261 CTLFLAG_PERMANENT, 262 CTLTYPE_NODE, "ddb", 263 SYSCTL_DESCR("In-kernel debugger"), 264 NULL, 0, NULL, 0, 265 CTL_DDB, CTL_EOL); 266 sysctl_createv(clog, 0, NULL, NULL, 267 CTLFLAG_PERMANENT, 268 CTLTYPE_NODE, "proc", 269 SYSCTL_DESCR("Per-process"), 270 NULL, 0, NULL, 0, 271 CTL_PROC, CTL_EOL); 272 sysctl_createv(clog, 0, NULL, NULL, 273 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 274 CTLTYPE_NODE, "vendor", 275 SYSCTL_DESCR("Vendor specific"), 276 NULL, 0, NULL, 0, 277 CTL_VENDOR, CTL_EOL); 278 sysctl_createv(clog, 0, NULL, NULL, 279 CTLFLAG_PERMANENT, 280 CTLTYPE_NODE, "emul", 281 SYSCTL_DESCR("Emulation settings"), 282 NULL, 0, NULL, 0, 283 CTL_EMUL, CTL_EOL); 284 sysctl_createv(clog, 0, NULL, NULL, 285 CTLFLAG_PERMANENT, 286 CTLTYPE_NODE, "security", 287 SYSCTL_DESCR("Security"), 288 NULL, 0, NULL, 0, 289 CTL_SECURITY, CTL_EOL); 290 } 291 292 /* 293 * this setup routine is a replacement for kern_sysctl() 294 */ 295 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 296 { 297 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 298 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 299 extern int dumponpanic; /* defined in kern/subr_prf.c */ 300 const struct sysctlnode *rnode; 301 302 sysctl_createv(clog, 0, NULL, NULL, 303 CTLFLAG_PERMANENT, 304 CTLTYPE_NODE, "kern", NULL, 305 NULL, 0, NULL, 0, 306 CTL_KERN, CTL_EOL); 307 308 sysctl_createv(clog, 0, NULL, NULL, 309 CTLFLAG_PERMANENT, 310 CTLTYPE_STRING, "ostype", 311 SYSCTL_DESCR("Operating system type"), 312 NULL, 0, &ostype, 0, 313 CTL_KERN, KERN_OSTYPE, CTL_EOL); 314 sysctl_createv(clog, 0, NULL, NULL, 315 CTLFLAG_PERMANENT, 316 CTLTYPE_STRING, "osrelease", 317 SYSCTL_DESCR("Operating system release"), 318 NULL, 0, &osrelease, 0, 319 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 320 sysctl_createv(clog, 0, NULL, NULL, 321 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 322 CTLTYPE_INT, "osrevision", 323 SYSCTL_DESCR("Operating system revision"), 324 NULL, __NetBSD_Version__, NULL, 0, 325 CTL_KERN, KERN_OSREV, CTL_EOL); 326 sysctl_createv(clog, 0, NULL, NULL, 327 CTLFLAG_PERMANENT, 328 CTLTYPE_STRING, "version", 329 SYSCTL_DESCR("Kernel version"), 330 NULL, 0, &version, 0, 331 CTL_KERN, KERN_VERSION, CTL_EOL); 332 sysctl_createv(clog, 0, NULL, NULL, 333 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 334 CTLTYPE_INT, "maxvnodes", 335 SYSCTL_DESCR("Maximum number of vnodes"), 336 sysctl_kern_maxvnodes, 0, NULL, 0, 337 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 338 sysctl_createv(clog, 0, NULL, NULL, 339 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 340 CTLTYPE_INT, "maxproc", 341 SYSCTL_DESCR("Maximum number of simultaneous processes"), 342 sysctl_kern_maxproc, 0, NULL, 0, 343 CTL_KERN, KERN_MAXPROC, CTL_EOL); 344 sysctl_createv(clog, 0, NULL, NULL, 345 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 346 CTLTYPE_INT, "maxfiles", 347 SYSCTL_DESCR("Maximum number of open files"), 348 NULL, 0, &maxfiles, 0, 349 CTL_KERN, KERN_MAXFILES, CTL_EOL); 350 sysctl_createv(clog, 0, NULL, NULL, 351 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 352 CTLTYPE_INT, "argmax", 353 SYSCTL_DESCR("Maximum number of bytes of arguments to " 354 "execve(2)"), 355 NULL, ARG_MAX, NULL, 0, 356 CTL_KERN, KERN_ARGMAX, CTL_EOL); 357 sysctl_createv(clog, 0, NULL, NULL, 358 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 359 CTLTYPE_STRING, "hostname", 360 SYSCTL_DESCR("System hostname"), 361 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 362 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 363 sysctl_createv(clog, 0, NULL, NULL, 364 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 365 CTLTYPE_INT, "hostid", 366 SYSCTL_DESCR("System host ID number"), 367 sysctl_kern_hostid, 0, NULL, 0, 368 CTL_KERN, KERN_HOSTID, CTL_EOL); 369 sysctl_createv(clog, 0, NULL, NULL, 370 CTLFLAG_PERMANENT, 371 CTLTYPE_STRUCT, "clockrate", 372 SYSCTL_DESCR("Kernel clock rates"), 373 sysctl_kern_clockrate, 0, NULL, 374 sizeof(struct clockinfo), 375 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 376 sysctl_createv(clog, 0, NULL, NULL, 377 CTLFLAG_PERMANENT, 378 CTLTYPE_INT, "hardclock_ticks", 379 SYSCTL_DESCR("Number of hardclock ticks"), 380 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 381 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 382 sysctl_createv(clog, 0, NULL, NULL, 383 CTLFLAG_PERMANENT, 384 CTLTYPE_STRUCT, "vnode", 385 SYSCTL_DESCR("System vnode table"), 386 sysctl_kern_vnode, 0, NULL, 0, 387 CTL_KERN, KERN_VNODE, CTL_EOL); 388 sysctl_createv(clog, 0, NULL, NULL, 389 CTLFLAG_PERMANENT, 390 CTLTYPE_STRUCT, "file", 391 SYSCTL_DESCR("System open file table"), 392 sysctl_kern_file, 0, NULL, 0, 393 CTL_KERN, KERN_FILE, CTL_EOL); 394 #ifndef GPROF 395 sysctl_createv(clog, 0, NULL, NULL, 396 CTLFLAG_PERMANENT, 397 CTLTYPE_NODE, "profiling", 398 SYSCTL_DESCR("Profiling information (not available)"), 399 sysctl_notavail, 0, NULL, 0, 400 CTL_KERN, KERN_PROF, CTL_EOL); 401 #endif 402 sysctl_createv(clog, 0, NULL, NULL, 403 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 404 CTLTYPE_INT, "posix1version", 405 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 406 "with which the operating system attempts " 407 "to comply"), 408 NULL, _POSIX_VERSION, NULL, 0, 409 CTL_KERN, KERN_POSIX1, CTL_EOL); 410 sysctl_createv(clog, 0, NULL, NULL, 411 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 412 CTLTYPE_INT, "ngroups", 413 SYSCTL_DESCR("Maximum number of supplemental groups"), 414 NULL, NGROUPS_MAX, NULL, 0, 415 CTL_KERN, KERN_NGROUPS, CTL_EOL); 416 sysctl_createv(clog, 0, NULL, NULL, 417 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 418 CTLTYPE_INT, "job_control", 419 SYSCTL_DESCR("Whether job control is available"), 420 NULL, 1, NULL, 0, 421 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 422 sysctl_createv(clog, 0, NULL, NULL, 423 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 424 CTLTYPE_INT, "saved_ids", 425 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 426 "available"), NULL, 427 #ifdef _POSIX_SAVED_IDS 428 1, 429 #else /* _POSIX_SAVED_IDS */ 430 0, 431 #endif /* _POSIX_SAVED_IDS */ 432 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 433 sysctl_createv(clog, 0, NULL, NULL, 434 CTLFLAG_PERMANENT, 435 CTLTYPE_STRUCT, "boottime", 436 SYSCTL_DESCR("System boot time"), 437 NULL, 0, &boottime, sizeof(boottime), 438 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 439 sysctl_createv(clog, 0, NULL, NULL, 440 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 441 CTLTYPE_STRING, "domainname", 442 SYSCTL_DESCR("YP domain name"), 443 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 444 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 445 sysctl_createv(clog, 0, NULL, NULL, 446 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 447 CTLTYPE_INT, "maxpartitions", 448 SYSCTL_DESCR("Maximum number of partitions allowed per " 449 "disk"), 450 NULL, MAXPARTITIONS, NULL, 0, 451 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 452 sysctl_createv(clog, 0, NULL, NULL, 453 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 454 CTLTYPE_INT, "rawpartition", 455 SYSCTL_DESCR("Raw partition of a disk"), 456 NULL, RAW_PART, NULL, 0, 457 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 458 sysctl_createv(clog, 0, NULL, NULL, 459 CTLFLAG_PERMANENT, 460 CTLTYPE_STRUCT, "timex", NULL, 461 sysctl_notavail, 0, NULL, 0, 462 CTL_KERN, KERN_TIMEX, CTL_EOL); 463 sysctl_createv(clog, 0, NULL, NULL, 464 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 465 CTLTYPE_INT, "rtc_offset", 466 SYSCTL_DESCR("Offset of real time clock from UTC in " 467 "minutes"), 468 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 469 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 470 sysctl_createv(clog, 0, NULL, NULL, 471 CTLFLAG_PERMANENT, 472 CTLTYPE_STRING, "root_device", 473 SYSCTL_DESCR("Name of the root device"), 474 sysctl_root_device, 0, NULL, 0, 475 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 476 sysctl_createv(clog, 0, NULL, NULL, 477 CTLFLAG_PERMANENT, 478 CTLTYPE_INT, "msgbufsize", 479 SYSCTL_DESCR("Size of the kernel message buffer"), 480 sysctl_msgbuf, 0, NULL, 0, 481 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 482 sysctl_createv(clog, 0, NULL, NULL, 483 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 484 CTLTYPE_INT, "fsync", 485 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 486 "Synchronization Option is available on " 487 "this system"), 488 NULL, 1, NULL, 0, 489 CTL_KERN, KERN_FSYNC, CTL_EOL); 490 sysctl_createv(clog, 0, NULL, NULL, 491 CTLFLAG_PERMANENT, 492 CTLTYPE_NODE, "ipc", 493 SYSCTL_DESCR("SysV IPC options"), 494 NULL, 0, NULL, 0, 495 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 496 sysctl_createv(clog, 0, NULL, NULL, 497 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 498 CTLTYPE_INT, "sysvmsg", 499 SYSCTL_DESCR("System V style message support available"), 500 NULL, 501 #ifdef SYSVMSG 502 1, 503 #else /* SYSVMSG */ 504 0, 505 #endif /* SYSVMSG */ 506 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 507 sysctl_createv(clog, 0, NULL, NULL, 508 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 509 CTLTYPE_INT, "sysvsem", 510 SYSCTL_DESCR("System V style semaphore support " 511 "available"), NULL, 512 #ifdef SYSVSEM 513 1, 514 #else /* SYSVSEM */ 515 0, 516 #endif /* SYSVSEM */ 517 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 518 sysctl_createv(clog, 0, NULL, NULL, 519 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 520 CTLTYPE_INT, "sysvshm", 521 SYSCTL_DESCR("System V style shared memory support " 522 "available"), NULL, 523 #ifdef SYSVSHM 524 1, 525 #else /* SYSVSHM */ 526 0, 527 #endif /* SYSVSHM */ 528 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 529 sysctl_createv(clog, 0, NULL, NULL, 530 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 531 CTLTYPE_INT, "synchronized_io", 532 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 533 "I/O Option is available on this system"), 534 NULL, 1, NULL, 0, 535 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 536 sysctl_createv(clog, 0, NULL, NULL, 537 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 538 CTLTYPE_INT, "iov_max", 539 SYSCTL_DESCR("Maximum number of iovec structures per " 540 "process"), 541 NULL, IOV_MAX, NULL, 0, 542 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 543 sysctl_createv(clog, 0, NULL, NULL, 544 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 545 CTLTYPE_INT, "mapped_files", 546 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 547 "Files Option is available on this system"), 548 NULL, 1, NULL, 0, 549 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 550 sysctl_createv(clog, 0, NULL, NULL, 551 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 552 CTLTYPE_INT, "memlock", 553 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 554 "Locking Option is available on this " 555 "system"), 556 NULL, 1, NULL, 0, 557 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 558 sysctl_createv(clog, 0, NULL, NULL, 559 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 560 CTLTYPE_INT, "memlock_range", 561 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 562 "Locking Option is available on this " 563 "system"), 564 NULL, 1, NULL, 0, 565 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 566 sysctl_createv(clog, 0, NULL, NULL, 567 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 568 CTLTYPE_INT, "memory_protection", 569 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 570 "Protection Option is available on this " 571 "system"), 572 NULL, 1, NULL, 0, 573 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 574 sysctl_createv(clog, 0, NULL, NULL, 575 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 576 CTLTYPE_INT, "login_name_max", 577 SYSCTL_DESCR("Maximum login name length"), 578 NULL, LOGIN_NAME_MAX, NULL, 0, 579 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 580 sysctl_createv(clog, 0, NULL, NULL, 581 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 582 CTLTYPE_STRING, "defcorename", 583 SYSCTL_DESCR("Default core file name"), 584 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 585 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 586 sysctl_createv(clog, 0, NULL, NULL, 587 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 588 CTLTYPE_INT, "logsigexit", 589 SYSCTL_DESCR("Log process exit when caused by signals"), 590 NULL, 0, &kern_logsigexit, 0, 591 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 592 sysctl_createv(clog, 0, NULL, NULL, 593 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 594 CTLTYPE_INT, "fscale", 595 SYSCTL_DESCR("Kernel fixed-point scale factor"), 596 NULL, FSCALE, NULL, 0, 597 CTL_KERN, KERN_FSCALE, CTL_EOL); 598 sysctl_createv(clog, 0, NULL, NULL, 599 CTLFLAG_PERMANENT, 600 CTLTYPE_INT, "ccpu", 601 SYSCTL_DESCR("Scheduler exponential decay value"), 602 NULL, 0, &ccpu, 0, 603 CTL_KERN, KERN_CCPU, CTL_EOL); 604 sysctl_createv(clog, 0, NULL, NULL, 605 CTLFLAG_PERMANENT, 606 CTLTYPE_STRUCT, "cp_time", 607 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 608 sysctl_kern_cptime, 0, NULL, 0, 609 CTL_KERN, KERN_CP_TIME, CTL_EOL); 610 sysctl_createv(clog, 0, NULL, NULL, 611 CTLFLAG_PERMANENT, 612 CTLTYPE_INT, "msgbuf", 613 SYSCTL_DESCR("Kernel message buffer"), 614 sysctl_msgbuf, 0, NULL, 0, 615 CTL_KERN, KERN_MSGBUF, CTL_EOL); 616 sysctl_createv(clog, 0, NULL, NULL, 617 CTLFLAG_PERMANENT, 618 CTLTYPE_STRUCT, "consdev", 619 SYSCTL_DESCR("Console device"), 620 sysctl_consdev, 0, NULL, sizeof(dev_t), 621 CTL_KERN, KERN_CONSDEV, CTL_EOL); 622 #if NPTY > 0 623 sysctl_createv(clog, 0, NULL, NULL, 624 CTLFLAG_PERMANENT, 625 CTLTYPE_INT, "maxptys", 626 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 627 sysctl_kern_maxptys, 0, NULL, 0, 628 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 629 #endif /* NPTY > 0 */ 630 sysctl_createv(clog, 0, NULL, NULL, 631 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 632 CTLTYPE_INT, "maxphys", 633 SYSCTL_DESCR("Maximum raw I/O transfer size"), 634 NULL, MAXPHYS, NULL, 0, 635 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 636 sysctl_createv(clog, 0, NULL, NULL, 637 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 638 CTLTYPE_INT, "sbmax", 639 SYSCTL_DESCR("Maximum socket buffer size"), 640 sysctl_kern_sbmax, 0, NULL, 0, 641 CTL_KERN, KERN_SBMAX, CTL_EOL); 642 sysctl_createv(clog, 0, NULL, NULL, 643 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 644 CTLTYPE_INT, "monotonic_clock", 645 SYSCTL_DESCR("Implementation version of the POSIX " 646 "1003.1b Monotonic Clock Option"), 647 /* XXX _POSIX_VERSION */ 648 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 649 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 650 sysctl_createv(clog, 0, NULL, NULL, 651 CTLFLAG_PERMANENT, 652 CTLTYPE_INT, "urandom", 653 SYSCTL_DESCR("Random integer value"), 654 sysctl_kern_urnd, 0, NULL, 0, 655 CTL_KERN, KERN_URND, CTL_EOL); 656 sysctl_createv(clog, 0, NULL, NULL, 657 CTLFLAG_PERMANENT, 658 CTLTYPE_INT, "arandom", 659 SYSCTL_DESCR("n bytes of random data"), 660 sysctl_kern_arnd, 0, NULL, 0, 661 CTL_KERN, KERN_ARND, CTL_EOL); 662 sysctl_createv(clog, 0, NULL, NULL, 663 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 664 CTLTYPE_INT, "labelsector", 665 SYSCTL_DESCR("Sector number containing the disklabel"), 666 NULL, LABELSECTOR, NULL, 0, 667 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 668 sysctl_createv(clog, 0, NULL, NULL, 669 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 670 CTLTYPE_INT, "labeloffset", 671 SYSCTL_DESCR("Offset of the disklabel within the " 672 "sector"), 673 NULL, LABELOFFSET, NULL, 0, 674 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 675 sysctl_createv(clog, 0, NULL, NULL, 676 CTLFLAG_PERMANENT, 677 CTLTYPE_NODE, "lwp", 678 SYSCTL_DESCR("System-wide LWP information"), 679 sysctl_kern_lwp, 0, NULL, 0, 680 CTL_KERN, KERN_LWP, CTL_EOL); 681 sysctl_createv(clog, 0, NULL, NULL, 682 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 683 CTLTYPE_INT, "forkfsleep", 684 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 685 "to process limits"), 686 sysctl_kern_forkfsleep, 0, NULL, 0, 687 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 688 sysctl_createv(clog, 0, NULL, NULL, 689 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 690 CTLTYPE_INT, "posix_threads", 691 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 692 "Threads option to which the system " 693 "attempts to conform"), 694 /* XXX _POSIX_VERSION */ 695 NULL, _POSIX_THREADS, NULL, 0, 696 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 697 sysctl_createv(clog, 0, NULL, NULL, 698 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 699 CTLTYPE_INT, "posix_semaphores", 700 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 701 "Semaphores option to which the system " 702 "attempts to conform"), NULL, 703 #ifdef P1003_1B_SEMAPHORE 704 200112, 705 #else /* P1003_1B_SEMAPHORE */ 706 0, 707 #endif /* P1003_1B_SEMAPHORE */ 708 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 709 sysctl_createv(clog, 0, NULL, NULL, 710 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 711 CTLTYPE_INT, "posix_barriers", 712 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 713 "Barriers option to which the system " 714 "attempts to conform"), 715 /* XXX _POSIX_VERSION */ 716 NULL, _POSIX_BARRIERS, NULL, 0, 717 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 718 sysctl_createv(clog, 0, NULL, NULL, 719 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 720 CTLTYPE_INT, "posix_timers", 721 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 722 "Timers option to which the system " 723 "attempts to conform"), 724 /* XXX _POSIX_VERSION */ 725 NULL, _POSIX_TIMERS, NULL, 0, 726 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 727 sysctl_createv(clog, 0, NULL, NULL, 728 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 729 CTLTYPE_INT, "posix_spin_locks", 730 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 731 "Locks option to which the system attempts " 732 "to conform"), 733 /* XXX _POSIX_VERSION */ 734 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 735 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 736 sysctl_createv(clog, 0, NULL, NULL, 737 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 738 CTLTYPE_INT, "posix_reader_writer_locks", 739 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 740 "Read-Write Locks option to which the " 741 "system attempts to conform"), 742 /* XXX _POSIX_VERSION */ 743 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 744 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 745 sysctl_createv(clog, 0, NULL, NULL, 746 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 747 CTLTYPE_INT, "dump_on_panic", 748 SYSCTL_DESCR("Perform a crash dump on system panic"), 749 NULL, 0, &dumponpanic, 0, 750 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 751 #ifdef DIAGNOSTIC 752 sysctl_createv(clog, 0, NULL, NULL, 753 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 754 CTLTYPE_INT, "panic_now", 755 SYSCTL_DESCR("Trigger a panic"), 756 sysctl_kern_trigger_panic, 0, NULL, 0, 757 CTL_KERN, CTL_CREATE, CTL_EOL); 758 #endif 759 sysctl_createv(clog, 0, NULL, NULL, 760 CTLFLAG_PERMANENT, 761 CTLTYPE_INT, "root_partition", 762 SYSCTL_DESCR("Root partition on the root device"), 763 sysctl_kern_root_partition, 0, NULL, 0, 764 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 765 sysctl_createv(clog, 0, NULL, NULL, 766 CTLFLAG_PERMANENT, 767 CTLTYPE_STRUCT, "drivers", 768 SYSCTL_DESCR("List of all drivers with block and " 769 "character device numbers"), 770 sysctl_kern_drivers, 0, NULL, 0, 771 CTL_KERN, KERN_DRIVERS, CTL_EOL); 772 sysctl_createv(clog, 0, NULL, NULL, 773 CTLFLAG_PERMANENT, 774 CTLTYPE_STRUCT, "file2", 775 SYSCTL_DESCR("System open file table"), 776 sysctl_kern_file2, 0, NULL, 0, 777 CTL_KERN, KERN_FILE2, CTL_EOL); 778 sysctl_createv(clog, 0, NULL, NULL, 779 CTLFLAG_PERMANENT, 780 CTLTYPE_STRUCT, "cp_id", 781 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 782 sysctl_kern_cpid, 0, NULL, 0, 783 CTL_KERN, KERN_CP_ID, CTL_EOL); 784 sysctl_createv(clog, 0, NULL, &rnode, 785 CTLFLAG_PERMANENT, 786 CTLTYPE_NODE, "coredump", 787 SYSCTL_DESCR("Coredump settings."), 788 NULL, 0, NULL, 0, 789 CTL_KERN, CTL_CREATE, CTL_EOL); 790 sysctl_createv(clog, 0, &rnode, &rnode, 791 CTLFLAG_PERMANENT, 792 CTLTYPE_NODE, "setid", 793 SYSCTL_DESCR("Set-id processes' coredump settings."), 794 NULL, 0, NULL, 0, 795 CTL_CREATE, CTL_EOL); 796 sysctl_createv(clog, 0, &rnode, NULL, 797 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 798 CTLTYPE_INT, "dump", 799 SYSCTL_DESCR("Allow set-id processes to dump core."), 800 sysctl_security_setidcore, 0, &security_setidcore_dump, 801 sizeof(security_setidcore_dump), 802 CTL_CREATE, CTL_EOL); 803 sysctl_createv(clog, 0, &rnode, NULL, 804 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 805 CTLTYPE_STRING, "path", 806 SYSCTL_DESCR("Path pattern for set-id coredumps."), 807 sysctl_security_setidcorename, 0, 808 &security_setidcore_path, 809 sizeof(security_setidcore_path), 810 CTL_CREATE, CTL_EOL); 811 sysctl_createv(clog, 0, &rnode, NULL, 812 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 813 CTLTYPE_INT, "owner", 814 SYSCTL_DESCR("Owner id for set-id processes' cores."), 815 sysctl_security_setidcore, 0, &security_setidcore_owner, 816 0, 817 CTL_CREATE, CTL_EOL); 818 sysctl_createv(clog, 0, &rnode, NULL, 819 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 820 CTLTYPE_INT, "group", 821 SYSCTL_DESCR("Group id for set-id processes' cores."), 822 sysctl_security_setidcore, 0, &security_setidcore_group, 823 0, 824 CTL_CREATE, CTL_EOL); 825 sysctl_createv(clog, 0, &rnode, NULL, 826 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 827 CTLTYPE_INT, "mode", 828 SYSCTL_DESCR("Mode for set-id processes' cores."), 829 sysctl_security_setidcore, 0, &security_setidcore_mode, 830 0, 831 CTL_CREATE, CTL_EOL); 832 sysctl_createv(clog, 0, NULL, NULL, 833 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 834 CTLTYPE_INT, "no_sa_support", 835 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"), 836 NULL, 1, NULL, 0, 837 CTL_KERN, CTL_CREATE, CTL_EOL); 838 } 839 840 SYSCTL_SETUP(sysctl_kern_proc_setup, 841 "sysctl kern.proc/proc2/proc_args subtree setup") 842 { 843 844 sysctl_createv(clog, 0, NULL, NULL, 845 CTLFLAG_PERMANENT, 846 CTLTYPE_NODE, "kern", NULL, 847 NULL, 0, NULL, 0, 848 CTL_KERN, CTL_EOL); 849 850 sysctl_createv(clog, 0, NULL, NULL, 851 CTLFLAG_PERMANENT, 852 CTLTYPE_NODE, "proc", 853 SYSCTL_DESCR("System-wide process information"), 854 sysctl_doeproc, 0, NULL, 0, 855 CTL_KERN, KERN_PROC, CTL_EOL); 856 sysctl_createv(clog, 0, NULL, NULL, 857 CTLFLAG_PERMANENT, 858 CTLTYPE_NODE, "proc2", 859 SYSCTL_DESCR("Machine-independent process information"), 860 sysctl_doeproc, 0, NULL, 0, 861 CTL_KERN, KERN_PROC2, CTL_EOL); 862 sysctl_createv(clog, 0, NULL, NULL, 863 CTLFLAG_PERMANENT, 864 CTLTYPE_NODE, "proc_args", 865 SYSCTL_DESCR("Process argument information"), 866 sysctl_kern_proc_args, 0, NULL, 0, 867 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 868 869 /* 870 "nodes" under these: 871 872 KERN_PROC_ALL 873 KERN_PROC_PID pid 874 KERN_PROC_PGRP pgrp 875 KERN_PROC_SESSION sess 876 KERN_PROC_TTY tty 877 KERN_PROC_UID uid 878 KERN_PROC_RUID uid 879 KERN_PROC_GID gid 880 KERN_PROC_RGID gid 881 882 all in all, probably not worth the effort... 883 */ 884 } 885 886 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 887 { 888 u_int u; 889 u_quad_t q; 890 891 sysctl_createv(clog, 0, NULL, NULL, 892 CTLFLAG_PERMANENT, 893 CTLTYPE_NODE, "hw", NULL, 894 NULL, 0, NULL, 0, 895 CTL_HW, CTL_EOL); 896 897 sysctl_createv(clog, 0, NULL, NULL, 898 CTLFLAG_PERMANENT, 899 CTLTYPE_STRING, "machine", 900 SYSCTL_DESCR("Machine class"), 901 NULL, 0, machine, 0, 902 CTL_HW, HW_MACHINE, CTL_EOL); 903 sysctl_createv(clog, 0, NULL, NULL, 904 CTLFLAG_PERMANENT, 905 CTLTYPE_STRING, "model", 906 SYSCTL_DESCR("Machine model"), 907 NULL, 0, cpu_model, 0, 908 CTL_HW, HW_MODEL, CTL_EOL); 909 sysctl_createv(clog, 0, NULL, NULL, 910 CTLFLAG_PERMANENT, 911 CTLTYPE_INT, "ncpu", 912 SYSCTL_DESCR("Number of CPUs configured"), 913 NULL, 0, &ncpu, 0, 914 CTL_HW, HW_NCPU, CTL_EOL); 915 sysctl_createv(clog, 0, NULL, NULL, 916 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 917 CTLTYPE_INT, "byteorder", 918 SYSCTL_DESCR("System byte order"), 919 NULL, BYTE_ORDER, NULL, 0, 920 CTL_HW, HW_BYTEORDER, CTL_EOL); 921 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 922 UINT_MAX : physmem * PAGE_SIZE; 923 sysctl_createv(clog, 0, NULL, NULL, 924 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 925 CTLTYPE_INT, "physmem", 926 SYSCTL_DESCR("Bytes of physical memory"), 927 NULL, u, NULL, 0, 928 CTL_HW, HW_PHYSMEM, CTL_EOL); 929 sysctl_createv(clog, 0, NULL, NULL, 930 CTLFLAG_PERMANENT, 931 CTLTYPE_INT, "usermem", 932 SYSCTL_DESCR("Bytes of non-kernel memory"), 933 sysctl_hw_usermem, 0, NULL, 0, 934 CTL_HW, HW_USERMEM, CTL_EOL); 935 sysctl_createv(clog, 0, NULL, NULL, 936 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 937 CTLTYPE_INT, "pagesize", 938 SYSCTL_DESCR("Software page size"), 939 NULL, PAGE_SIZE, NULL, 0, 940 CTL_HW, HW_PAGESIZE, CTL_EOL); 941 sysctl_createv(clog, 0, NULL, NULL, 942 CTLFLAG_PERMANENT, 943 CTLTYPE_STRING, "machine_arch", 944 SYSCTL_DESCR("Machine CPU class"), 945 NULL, 0, machine_arch, 0, 946 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 947 sysctl_createv(clog, 0, NULL, NULL, 948 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 949 CTLTYPE_INT, "alignbytes", 950 SYSCTL_DESCR("Alignment constraint for all possible " 951 "data types"), 952 NULL, ALIGNBYTES, NULL, 0, 953 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 954 sysctl_createv(clog, 0, NULL, NULL, 955 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 956 CTLTYPE_STRING, "cnmagic", 957 SYSCTL_DESCR("Console magic key sequence"), 958 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 959 CTL_HW, HW_CNMAGIC, CTL_EOL); 960 q = (u_quad_t)physmem * PAGE_SIZE; 961 sysctl_createv(clog, 0, NULL, NULL, 962 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 963 CTLTYPE_QUAD, "physmem64", 964 SYSCTL_DESCR("Bytes of physical memory"), 965 NULL, q, NULL, 0, 966 CTL_HW, HW_PHYSMEM64, CTL_EOL); 967 sysctl_createv(clog, 0, NULL, NULL, 968 CTLFLAG_PERMANENT, 969 CTLTYPE_QUAD, "usermem64", 970 SYSCTL_DESCR("Bytes of non-kernel memory"), 971 sysctl_hw_usermem, 0, NULL, 0, 972 CTL_HW, HW_USERMEM64, CTL_EOL); 973 sysctl_createv(clog, 0, NULL, NULL, 974 CTLFLAG_PERMANENT, 975 CTLTYPE_INT, "ncpuonline", 976 SYSCTL_DESCR("Number of CPUs online"), 977 NULL, 0, &ncpuonline, 0, 978 CTL_HW, HW_NCPUONLINE, CTL_EOL); 979 } 980 981 #ifdef DEBUG 982 /* 983 * Debugging related system variables. 984 */ 985 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 986 struct ctldebug debug5, debug6, debug7, debug8, debug9; 987 struct ctldebug debug10, debug11, debug12, debug13, debug14; 988 struct ctldebug debug15, debug16, debug17, debug18, debug19; 989 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 990 &debug0, &debug1, &debug2, &debug3, &debug4, 991 &debug5, &debug6, &debug7, &debug8, &debug9, 992 &debug10, &debug11, &debug12, &debug13, &debug14, 993 &debug15, &debug16, &debug17, &debug18, &debug19, 994 }; 995 996 /* 997 * this setup routine is a replacement for debug_sysctl() 998 * 999 * note that it creates several nodes per defined debug variable 1000 */ 1001 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1002 { 1003 struct ctldebug *cdp; 1004 char nodename[20]; 1005 int i; 1006 1007 /* 1008 * two ways here: 1009 * 1010 * the "old" way (debug.name -> value) which was emulated by 1011 * the sysctl(8) binary 1012 * 1013 * the new way, which the sysctl(8) binary was actually using 1014 1015 node debug 1016 node debug.0 1017 string debug.0.name 1018 int debug.0.value 1019 int debug.name 1020 1021 */ 1022 1023 sysctl_createv(clog, 0, NULL, NULL, 1024 CTLFLAG_PERMANENT, 1025 CTLTYPE_NODE, "debug", NULL, 1026 NULL, 0, NULL, 0, 1027 CTL_DEBUG, CTL_EOL); 1028 1029 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1030 cdp = debugvars[i]; 1031 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1032 continue; 1033 1034 snprintf(nodename, sizeof(nodename), "debug%d", i); 1035 sysctl_createv(clog, 0, NULL, NULL, 1036 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1037 CTLTYPE_NODE, nodename, NULL, 1038 NULL, 0, NULL, 0, 1039 CTL_DEBUG, i, CTL_EOL); 1040 sysctl_createv(clog, 0, NULL, NULL, 1041 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1042 CTLTYPE_STRING, "name", NULL, 1043 /*XXXUNCONST*/ 1044 NULL, 0, __UNCONST(cdp->debugname), 0, 1045 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1046 sysctl_createv(clog, 0, NULL, NULL, 1047 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1048 CTLTYPE_INT, "value", NULL, 1049 NULL, 0, cdp->debugvar, 0, 1050 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1051 sysctl_createv(clog, 0, NULL, NULL, 1052 CTLFLAG_PERMANENT, 1053 CTLTYPE_INT, cdp->debugname, NULL, 1054 NULL, 0, cdp->debugvar, 0, 1055 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1056 } 1057 } 1058 #endif /* DEBUG */ 1059 1060 /* 1061 * ******************************************************************** 1062 * section 2: private node-specific helper routines. 1063 * ******************************************************************** 1064 */ 1065 1066 #ifdef DIAGNOSTIC 1067 static int 1068 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1069 { 1070 int newtrig, error; 1071 struct sysctlnode node; 1072 1073 newtrig = 0; 1074 node = *rnode; 1075 node.sysctl_data = &newtrig; 1076 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1077 if (error || newp == NULL) 1078 return (error); 1079 1080 if (newtrig != 0) 1081 panic("Panic triggered"); 1082 1083 return (error); 1084 } 1085 #endif 1086 1087 /* 1088 * sysctl helper routine for kern.maxvnodes. Drain vnodes if 1089 * new value is lower than desiredvnodes and then calls reinit 1090 * routines that needs to adjust to the new value. 1091 */ 1092 static int 1093 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1094 { 1095 int error, new_vnodes, old_vnodes, new_max; 1096 struct sysctlnode node; 1097 1098 new_vnodes = desiredvnodes; 1099 node = *rnode; 1100 node.sysctl_data = &new_vnodes; 1101 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1102 if (error || newp == NULL) 1103 return (error); 1104 1105 /* Limits: 75% of KVA and physical memory. */ 1106 new_max = calc_cache_size(kernel_map, 75, 75) / VNODE_COST; 1107 if (new_vnodes > new_max) 1108 new_vnodes = new_max; 1109 1110 old_vnodes = desiredvnodes; 1111 desiredvnodes = new_vnodes; 1112 if (new_vnodes < old_vnodes) { 1113 error = vfs_drainvnodes(new_vnodes, l); 1114 if (error) { 1115 desiredvnodes = old_vnodes; 1116 return (error); 1117 } 1118 } 1119 vfs_reinit(); 1120 nchreinit(); 1121 1122 return (0); 1123 } 1124 1125 /* 1126 * sysctl helper routine for rtc_offset - set time after changes 1127 */ 1128 static int 1129 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1130 { 1131 struct timespec ts, delta; 1132 int error, new_rtc_offset; 1133 struct sysctlnode node; 1134 1135 new_rtc_offset = rtc_offset; 1136 node = *rnode; 1137 node.sysctl_data = &new_rtc_offset; 1138 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1139 if (error || newp == NULL) 1140 return (error); 1141 1142 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1143 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1144 KAUTH_ARG(new_rtc_offset), NULL, NULL)) 1145 return (EPERM); 1146 if (rtc_offset == new_rtc_offset) 1147 return (0); 1148 1149 /* if we change the offset, adjust the time */ 1150 nanotime(&ts); 1151 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1152 delta.tv_nsec = 0; 1153 timespecadd(&ts, &delta, &ts); 1154 rtc_offset = new_rtc_offset; 1155 return (settime(l->l_proc, &ts)); 1156 } 1157 1158 /* 1159 * sysctl helper routine for kern.maxproc. Ensures that the new 1160 * values are not too low or too high. 1161 */ 1162 static int 1163 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1164 { 1165 int error, nmaxproc; 1166 struct sysctlnode node; 1167 1168 nmaxproc = maxproc; 1169 node = *rnode; 1170 node.sysctl_data = &nmaxproc; 1171 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1172 if (error || newp == NULL) 1173 return (error); 1174 1175 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1176 return (EINVAL); 1177 #ifdef __HAVE_CPU_MAXPROC 1178 if (nmaxproc > cpu_maxproc()) 1179 return (EINVAL); 1180 #endif 1181 maxproc = nmaxproc; 1182 1183 return (0); 1184 } 1185 1186 /* 1187 * sysctl helper function for kern.hostid. The hostid is a long, but 1188 * we export it as an int, so we need to give it a little help. 1189 */ 1190 static int 1191 sysctl_kern_hostid(SYSCTLFN_ARGS) 1192 { 1193 int error, inthostid; 1194 struct sysctlnode node; 1195 1196 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1197 node = *rnode; 1198 node.sysctl_data = &inthostid; 1199 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1200 if (error || newp == NULL) 1201 return (error); 1202 1203 hostid = (unsigned)inthostid; 1204 1205 return (0); 1206 } 1207 1208 /* 1209 * sysctl helper function for kern.hostname and kern.domainnname. 1210 * resets the relevant recorded length when the underlying name is 1211 * changed. 1212 */ 1213 static int 1214 sysctl_setlen(SYSCTLFN_ARGS) 1215 { 1216 int error; 1217 1218 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1219 if (error || newp == NULL) 1220 return (error); 1221 1222 switch (rnode->sysctl_num) { 1223 case KERN_HOSTNAME: 1224 hostnamelen = strlen((const char*)rnode->sysctl_data); 1225 break; 1226 case KERN_DOMAINNAME: 1227 domainnamelen = strlen((const char*)rnode->sysctl_data); 1228 break; 1229 } 1230 1231 return (0); 1232 } 1233 1234 /* 1235 * sysctl helper routine for kern.clockrate. Assembles a struct on 1236 * the fly to be returned to the caller. 1237 */ 1238 static int 1239 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1240 { 1241 struct clockinfo clkinfo; 1242 struct sysctlnode node; 1243 1244 clkinfo.tick = tick; 1245 clkinfo.tickadj = tickadj; 1246 clkinfo.hz = hz; 1247 clkinfo.profhz = profhz; 1248 clkinfo.stathz = stathz ? stathz : hz; 1249 1250 node = *rnode; 1251 node.sysctl_data = &clkinfo; 1252 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1253 } 1254 1255 1256 /* 1257 * sysctl helper routine for kern.file pseudo-subtree. 1258 */ 1259 static int 1260 sysctl_kern_file(SYSCTLFN_ARGS) 1261 { 1262 int error; 1263 size_t buflen; 1264 struct file *fp, *dp, *np, fbuf; 1265 char *start, *where; 1266 1267 start = where = oldp; 1268 buflen = *oldlenp; 1269 dp = NULL; 1270 1271 if (where == NULL) { 1272 /* 1273 * overestimate by 10 files 1274 */ 1275 *oldlenp = sizeof(filehead) + (nfiles + 10) * 1276 sizeof(struct file); 1277 return (0); 1278 } 1279 1280 /* 1281 * first dcopyout filehead 1282 */ 1283 if (buflen < sizeof(filehead)) { 1284 *oldlenp = 0; 1285 return (0); 1286 } 1287 sysctl_unlock(); 1288 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1289 if (error) { 1290 sysctl_relock(); 1291 return error; 1292 } 1293 buflen -= sizeof(filehead); 1294 where += sizeof(filehead); 1295 1296 /* 1297 * allocate dummy file descriptor to make position in list 1298 */ 1299 if ((dp = fgetdummy()) == NULL) { 1300 sysctl_relock(); 1301 return ENOMEM; 1302 } 1303 1304 /* 1305 * followed by an array of file structures 1306 */ 1307 mutex_enter(&filelist_lock); 1308 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1309 np = LIST_NEXT(fp, f_list); 1310 mutex_enter(&fp->f_lock); 1311 if (fp->f_count == 0) { 1312 mutex_exit(&fp->f_lock); 1313 continue; 1314 } 1315 /* 1316 * XXX Need to prevent that from being an alternative way 1317 * XXX to getting process information. 1318 */ 1319 if (kauth_authorize_generic(l->l_cred, 1320 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1321 mutex_exit(&fp->f_lock); 1322 continue; 1323 } 1324 if (buflen < sizeof(struct file)) { 1325 *oldlenp = where - start; 1326 mutex_exit(&fp->f_lock); 1327 error = ENOMEM; 1328 break; 1329 } 1330 memcpy(&fbuf, fp, sizeof(fbuf)); 1331 LIST_INSERT_AFTER(fp, dp, f_list); 1332 mutex_exit(&fp->f_lock); 1333 mutex_exit(&filelist_lock); 1334 error = dcopyout(l, &fbuf, where, sizeof(fbuf)); 1335 if (error) { 1336 mutex_enter(&filelist_lock); 1337 LIST_REMOVE(dp, f_list); 1338 break; 1339 } 1340 buflen -= sizeof(struct file); 1341 where += sizeof(struct file); 1342 mutex_enter(&filelist_lock); 1343 np = LIST_NEXT(dp, f_list); 1344 LIST_REMOVE(dp, f_list); 1345 } 1346 mutex_exit(&filelist_lock); 1347 *oldlenp = where - start; 1348 if (dp != NULL) 1349 fputdummy(dp); 1350 sysctl_relock(); 1351 return (error); 1352 } 1353 1354 /* 1355 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 1356 * former it merely checks the message buffer is set up. For the latter, 1357 * it also copies out the data if necessary. 1358 */ 1359 static int 1360 sysctl_msgbuf(SYSCTLFN_ARGS) 1361 { 1362 char *where = oldp; 1363 size_t len, maxlen; 1364 long beg, end; 1365 extern kmutex_t log_lock; 1366 int error; 1367 1368 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1369 msgbufenabled = 0; 1370 return (ENXIO); 1371 } 1372 1373 switch (rnode->sysctl_num) { 1374 case KERN_MSGBUFSIZE: { 1375 struct sysctlnode node = *rnode; 1376 int msg_bufs = (int)msgbufp->msg_bufs; 1377 node.sysctl_data = &msg_bufs; 1378 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1379 } 1380 case KERN_MSGBUF: 1381 break; 1382 default: 1383 return (EOPNOTSUPP); 1384 } 1385 1386 if (newp != NULL) 1387 return (EPERM); 1388 1389 if (oldp == NULL) { 1390 /* always return full buffer size */ 1391 *oldlenp = msgbufp->msg_bufs; 1392 return (0); 1393 } 1394 1395 sysctl_unlock(); 1396 1397 /* 1398 * First, copy from the write pointer to the end of 1399 * message buffer. 1400 */ 1401 error = 0; 1402 mutex_spin_enter(&log_lock); 1403 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1404 beg = msgbufp->msg_bufx; 1405 end = msgbufp->msg_bufs; 1406 mutex_spin_exit(&log_lock); 1407 1408 while (maxlen > 0) { 1409 len = MIN(end - beg, maxlen); 1410 if (len == 0) 1411 break; 1412 /* XXX unlocked, but hardly matters. */ 1413 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1414 if (error) 1415 break; 1416 where += len; 1417 maxlen -= len; 1418 1419 /* 1420 * ... then, copy from the beginning of message buffer to 1421 * the write pointer. 1422 */ 1423 beg = 0; 1424 end = msgbufp->msg_bufx; 1425 } 1426 1427 sysctl_relock(); 1428 return (error); 1429 } 1430 1431 /* 1432 * sysctl helper routine for kern.defcorename. In the case of a new 1433 * string being assigned, check that it's not a zero-length string. 1434 * (XXX the check in -current doesn't work, but do we really care?) 1435 */ 1436 static int 1437 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1438 { 1439 int error; 1440 char *newcorename; 1441 struct sysctlnode node; 1442 1443 newcorename = PNBUF_GET(); 1444 node = *rnode; 1445 node.sysctl_data = &newcorename[0]; 1446 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1447 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1448 if (error || newp == NULL) { 1449 goto done; 1450 } 1451 1452 /* 1453 * when sysctl_lookup() deals with a string, it's guaranteed 1454 * to come back nul terminated. So there. :) 1455 */ 1456 if (strlen(newcorename) == 0) { 1457 error = EINVAL; 1458 } else { 1459 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1460 error = 0; 1461 } 1462 done: 1463 PNBUF_PUT(newcorename); 1464 return error; 1465 } 1466 1467 /* 1468 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1469 * across all cpus. 1470 */ 1471 static int 1472 sysctl_kern_cptime(SYSCTLFN_ARGS) 1473 { 1474 struct sysctlnode node = *rnode; 1475 uint64_t *cp_time = NULL; 1476 int error, n = ncpu, i; 1477 struct cpu_info *ci; 1478 CPU_INFO_ITERATOR cii; 1479 1480 /* 1481 * if you specifically pass a buffer that is the size of the 1482 * sum, or if you are probing for the size, you get the "sum" 1483 * of cp_time (and the size thereof) across all processors. 1484 * 1485 * alternately, you can pass an additional mib number and get 1486 * cp_time for that particular processor. 1487 */ 1488 switch (namelen) { 1489 case 0: 1490 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1491 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1492 n = -1; /* SUM */ 1493 } 1494 else { 1495 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1496 n = -2; /* ALL */ 1497 } 1498 break; 1499 case 1: 1500 if (name[0] < 0 || name[0] >= n) 1501 return (ENOENT); /* ENOSUCHPROCESSOR */ 1502 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1503 n = name[0]; 1504 /* 1505 * adjust these so that sysctl_lookup() will be happy 1506 */ 1507 name++; 1508 namelen--; 1509 break; 1510 default: 1511 return (EINVAL); 1512 } 1513 1514 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); 1515 if (cp_time == NULL) 1516 return (ENOMEM); 1517 node.sysctl_data = cp_time; 1518 memset(cp_time, 0, node.sysctl_size); 1519 1520 for (CPU_INFO_FOREACH(cii, ci)) { 1521 if (n <= 0) { 1522 for (i = 0; i < CPUSTATES; i++) { 1523 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1524 } 1525 } 1526 /* 1527 * if a specific processor was requested and we just 1528 * did it, we're done here 1529 */ 1530 if (n == 0) 1531 break; 1532 /* 1533 * if doing "all", skip to next cp_time set for next processor 1534 */ 1535 if (n == -2) 1536 cp_time += CPUSTATES; 1537 /* 1538 * if we're doing a specific processor, we're one 1539 * processor closer 1540 */ 1541 if (n > 0) 1542 n--; 1543 } 1544 1545 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1546 kmem_free(node.sysctl_data, node.sysctl_size); 1547 return (error); 1548 } 1549 1550 #if NPTY > 0 1551 /* 1552 * sysctl helper routine for kern.maxptys. Ensures that any new value 1553 * is acceptable to the pty subsystem. 1554 */ 1555 static int 1556 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1557 { 1558 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1559 int error, xmax; 1560 struct sysctlnode node; 1561 1562 /* get current value of maxptys */ 1563 xmax = pty_maxptys(0, 0); 1564 1565 node = *rnode; 1566 node.sysctl_data = &xmax; 1567 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1568 if (error || newp == NULL) 1569 return (error); 1570 1571 if (xmax != pty_maxptys(xmax, 1)) 1572 return (EINVAL); 1573 1574 return (0); 1575 } 1576 #endif /* NPTY > 0 */ 1577 1578 /* 1579 * sysctl helper routine for kern.sbmax. Basically just ensures that 1580 * any new value is not too small. 1581 */ 1582 static int 1583 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1584 { 1585 int error, new_sbmax; 1586 struct sysctlnode node; 1587 1588 new_sbmax = sb_max; 1589 node = *rnode; 1590 node.sysctl_data = &new_sbmax; 1591 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1592 if (error || newp == NULL) 1593 return (error); 1594 1595 KERNEL_LOCK(1, NULL); 1596 error = sb_max_set(new_sbmax); 1597 KERNEL_UNLOCK_ONE(NULL); 1598 1599 return (error); 1600 } 1601 1602 /* 1603 * sysctl helper routine for kern.urandom node. Picks a random number 1604 * for you. 1605 */ 1606 static int 1607 sysctl_kern_urnd(SYSCTLFN_ARGS) 1608 { 1609 #if NRND > 0 1610 int v, rv; 1611 1612 KERNEL_LOCK(1, NULL); 1613 rv = rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY); 1614 KERNEL_UNLOCK_ONE(NULL); 1615 if (rv == sizeof(v)) { 1616 struct sysctlnode node = *rnode; 1617 node.sysctl_data = &v; 1618 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1619 } 1620 else 1621 return (EIO); /*XXX*/ 1622 #else 1623 return (EOPNOTSUPP); 1624 #endif 1625 } 1626 1627 /* 1628 * sysctl helper routine for kern.arandom node. Picks a random number 1629 * for you. 1630 */ 1631 static int 1632 sysctl_kern_arnd(SYSCTLFN_ARGS) 1633 { 1634 #if NRND > 0 1635 int error; 1636 void *v; 1637 struct sysctlnode node = *rnode; 1638 1639 if (*oldlenp == 0) 1640 return 0; 1641 if (*oldlenp > 8192) 1642 return E2BIG; 1643 1644 v = kmem_alloc(*oldlenp, KM_SLEEP); 1645 arc4randbytes(v, *oldlenp); 1646 node.sysctl_data = v; 1647 node.sysctl_size = *oldlenp; 1648 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1649 kmem_free(v, *oldlenp); 1650 return error; 1651 #else 1652 return (EOPNOTSUPP); 1653 #endif 1654 } 1655 /* 1656 * sysctl helper routine to do kern.lwp.* work. 1657 */ 1658 static int 1659 sysctl_kern_lwp(SYSCTLFN_ARGS) 1660 { 1661 struct kinfo_lwp klwp; 1662 struct proc *p; 1663 struct lwp *l2, *l3; 1664 char *where, *dp; 1665 int pid, elem_size, elem_count; 1666 int buflen, needed, error; 1667 bool gotit; 1668 1669 if (namelen == 1 && name[0] == CTL_QUERY) 1670 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1671 1672 dp = where = oldp; 1673 buflen = where != NULL ? *oldlenp : 0; 1674 error = needed = 0; 1675 1676 if (newp != NULL || namelen != 3) 1677 return (EINVAL); 1678 pid = name[0]; 1679 elem_size = name[1]; 1680 elem_count = name[2]; 1681 1682 sysctl_unlock(); 1683 if (pid == -1) { 1684 mutex_enter(proc_lock); 1685 LIST_FOREACH(p, &allproc, p_list) { 1686 /* Grab a hold on the process. */ 1687 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 1688 continue; 1689 } 1690 mutex_exit(proc_lock); 1691 1692 mutex_enter(p->p_lock); 1693 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1694 if (buflen >= elem_size && elem_count > 0) { 1695 lwp_lock(l2); 1696 fill_lwp(l2, &klwp); 1697 lwp_unlock(l2); 1698 mutex_exit(p->p_lock); 1699 1700 /* 1701 * Copy out elem_size, but not 1702 * larger than the size of a 1703 * struct kinfo_proc2. 1704 */ 1705 error = dcopyout(l, &klwp, dp, 1706 min(sizeof(klwp), elem_size)); 1707 if (error) { 1708 rw_exit(&p->p_reflock); 1709 goto cleanup; 1710 } 1711 mutex_enter(p->p_lock); 1712 LIST_FOREACH(l3, &p->p_lwps, 1713 l_sibling) { 1714 if (l2 == l3) 1715 break; 1716 } 1717 if (l3 == NULL) { 1718 mutex_exit(p->p_lock); 1719 rw_exit(&p->p_reflock); 1720 error = EAGAIN; 1721 goto cleanup; 1722 } 1723 dp += elem_size; 1724 buflen -= elem_size; 1725 elem_count--; 1726 } 1727 needed += elem_size; 1728 } 1729 mutex_exit(p->p_lock); 1730 1731 /* Drop reference to process. */ 1732 mutex_enter(proc_lock); 1733 rw_exit(&p->p_reflock); 1734 } 1735 mutex_exit(proc_lock); 1736 } else { 1737 mutex_enter(proc_lock); 1738 p = p_find(pid, PFIND_LOCKED); 1739 if (p == NULL) { 1740 error = ESRCH; 1741 mutex_exit(proc_lock); 1742 goto cleanup; 1743 } 1744 /* Grab a hold on the process. */ 1745 gotit = rw_tryenter(&p->p_reflock, RW_READER); 1746 mutex_exit(proc_lock); 1747 if (!gotit) { 1748 error = ESRCH; 1749 goto cleanup; 1750 } 1751 1752 mutex_enter(p->p_lock); 1753 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1754 if (buflen >= elem_size && elem_count > 0) { 1755 lwp_lock(l2); 1756 fill_lwp(l2, &klwp); 1757 lwp_unlock(l2); 1758 mutex_exit(p->p_lock); 1759 /* 1760 * Copy out elem_size, but not larger than 1761 * the size of a struct kinfo_proc2. 1762 */ 1763 error = dcopyout(l, &klwp, dp, 1764 min(sizeof(klwp), elem_size)); 1765 if (error) { 1766 rw_exit(&p->p_reflock); 1767 goto cleanup; 1768 } 1769 mutex_enter(p->p_lock); 1770 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1771 if (l2 == l3) 1772 break; 1773 } 1774 if (l3 == NULL) { 1775 mutex_exit(p->p_lock); 1776 rw_exit(&p->p_reflock); 1777 error = EAGAIN; 1778 goto cleanup; 1779 } 1780 dp += elem_size; 1781 buflen -= elem_size; 1782 elem_count--; 1783 } 1784 needed += elem_size; 1785 } 1786 mutex_exit(p->p_lock); 1787 1788 /* Drop reference to process. */ 1789 rw_exit(&p->p_reflock); 1790 } 1791 1792 if (where != NULL) { 1793 *oldlenp = dp - where; 1794 if (needed > *oldlenp) { 1795 sysctl_relock(); 1796 return (ENOMEM); 1797 } 1798 } else { 1799 needed += KERN_LWPSLOP; 1800 *oldlenp = needed; 1801 } 1802 error = 0; 1803 cleanup: 1804 sysctl_relock(); 1805 return (error); 1806 } 1807 1808 /* 1809 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1810 * given value is not too large or two small, and is at least one 1811 * timer tick if not zero. 1812 */ 1813 static int 1814 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1815 { 1816 /* userland sees value in ms, internally is in ticks */ 1817 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1818 int error, timo, lsleep; 1819 struct sysctlnode node; 1820 1821 lsleep = forkfsleep * 1000 / hz; 1822 node = *rnode; 1823 node.sysctl_data = &lsleep; 1824 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1825 if (error || newp == NULL) 1826 return (error); 1827 1828 /* refuse negative values, and overly 'long time' */ 1829 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1830 return (EINVAL); 1831 1832 timo = mstohz(lsleep); 1833 1834 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1835 if (lsleep != 0 && timo == 0) 1836 forkfsleep = 1; 1837 else 1838 forkfsleep = timo; 1839 1840 return (0); 1841 } 1842 1843 /* 1844 * sysctl helper routine for kern.root_partition 1845 */ 1846 static int 1847 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1848 { 1849 int rootpart = DISKPART(rootdev); 1850 struct sysctlnode node = *rnode; 1851 1852 node.sysctl_data = &rootpart; 1853 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1854 } 1855 1856 /* 1857 * sysctl helper function for kern.drivers 1858 */ 1859 static int 1860 sysctl_kern_drivers(SYSCTLFN_ARGS) 1861 { 1862 int error; 1863 size_t buflen; 1864 struct kinfo_drivers kd; 1865 char *start, *where; 1866 const char *dname; 1867 int i; 1868 extern struct devsw_conv *devsw_conv; 1869 extern int max_devsw_convs; 1870 1871 if (newp != NULL || namelen != 0) 1872 return (EINVAL); 1873 1874 start = where = oldp; 1875 buflen = *oldlenp; 1876 if (where == NULL) { 1877 *oldlenp = max_devsw_convs * sizeof kd; 1878 return 0; 1879 } 1880 1881 /* 1882 * An array of kinfo_drivers structures 1883 */ 1884 error = 0; 1885 sysctl_unlock(); 1886 mutex_enter(&specfs_lock); 1887 for (i = 0; i < max_devsw_convs; i++) { 1888 dname = devsw_conv[i].d_name; 1889 if (dname == NULL) 1890 continue; 1891 if (buflen < sizeof kd) { 1892 error = ENOMEM; 1893 break; 1894 } 1895 memset(&kd, 0, sizeof(kd)); 1896 kd.d_bmajor = devsw_conv[i].d_bmajor; 1897 kd.d_cmajor = devsw_conv[i].d_cmajor; 1898 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1899 mutex_exit(&specfs_lock); 1900 error = dcopyout(l, &kd, where, sizeof kd); 1901 mutex_enter(&specfs_lock); 1902 if (error != 0) 1903 break; 1904 buflen -= sizeof kd; 1905 where += sizeof kd; 1906 } 1907 mutex_exit(&specfs_lock); 1908 sysctl_relock(); 1909 *oldlenp = where - start; 1910 return error; 1911 } 1912 1913 /* 1914 * sysctl helper function for kern.file2 1915 */ 1916 static int 1917 sysctl_kern_file2(SYSCTLFN_ARGS) 1918 { 1919 struct proc *p; 1920 struct file *fp, *tp, *np; 1921 struct filedesc *fd; 1922 struct kinfo_file kf; 1923 char *dp; 1924 u_int i, op; 1925 size_t len, needed, elem_size, out_size; 1926 int error, arg, elem_count; 1927 fdfile_t *ff; 1928 1929 if (namelen == 1 && name[0] == CTL_QUERY) 1930 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1931 1932 if (namelen != 4) 1933 return (EINVAL); 1934 1935 error = 0; 1936 dp = oldp; 1937 len = (oldp != NULL) ? *oldlenp : 0; 1938 op = name[0]; 1939 arg = name[1]; 1940 elem_size = name[2]; 1941 elem_count = name[3]; 1942 out_size = MIN(sizeof(kf), elem_size); 1943 needed = 0; 1944 1945 if (elem_size < 1 || elem_count < 0) 1946 return (EINVAL); 1947 1948 switch (op) { 1949 case KERN_FILE_BYFILE: 1950 /* 1951 * doesn't use arg so it must be zero 1952 */ 1953 if (arg != 0) 1954 return (EINVAL); 1955 sysctl_unlock(); 1956 /* 1957 * allocate dummy file descriptor to make position in list 1958 */ 1959 if ((tp = fgetdummy()) == NULL) { 1960 sysctl_relock(); 1961 return ENOMEM; 1962 } 1963 mutex_enter(&filelist_lock); 1964 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1965 np = LIST_NEXT(fp, f_list); 1966 mutex_enter(&fp->f_lock); 1967 if (fp->f_count == 0) { 1968 mutex_exit(&fp->f_lock); 1969 continue; 1970 } 1971 /* 1972 * XXX Need to prevent that from being an alternative 1973 * XXX way for getting process information. 1974 */ 1975 if (kauth_authorize_generic(l->l_cred, 1976 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1977 mutex_exit(&fp->f_lock); 1978 continue; 1979 } 1980 if (len >= elem_size && elem_count > 0) { 1981 fill_file(&kf, fp, NULL, 0, 0); 1982 LIST_INSERT_AFTER(fp, tp, f_list); 1983 mutex_exit(&fp->f_lock); 1984 mutex_exit(&filelist_lock); 1985 error = dcopyout(l, &kf, dp, out_size); 1986 mutex_enter(&filelist_lock); 1987 np = LIST_NEXT(tp, f_list); 1988 LIST_REMOVE(tp, f_list); 1989 if (error) { 1990 break; 1991 } 1992 dp += elem_size; 1993 len -= elem_size; 1994 } else { 1995 mutex_exit(&fp->f_lock); 1996 } 1997 if (elem_count > 0) { 1998 needed += elem_size; 1999 if (elem_count != INT_MAX) 2000 elem_count--; 2001 } 2002 } 2003 mutex_exit(&filelist_lock); 2004 fputdummy(tp); 2005 sysctl_relock(); 2006 break; 2007 case KERN_FILE_BYPID: 2008 if (arg < -1) 2009 /* -1 means all processes */ 2010 return (EINVAL); 2011 sysctl_unlock(); 2012 mutex_enter(proc_lock); 2013 LIST_FOREACH(p, &allproc, p_list) { 2014 if (p->p_stat == SIDL) { 2015 /* skip embryonic processes */ 2016 continue; 2017 } 2018 if (arg > 0 && p->p_pid != arg) { 2019 /* pick only the one we want */ 2020 /* XXX want 0 to mean "kernel files" */ 2021 continue; 2022 } 2023 mutex_enter(p->p_lock); 2024 error = kauth_authorize_process(l->l_cred, 2025 KAUTH_PROCESS_CANSEE, p, 2026 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_OPENFILES), 2027 NULL, NULL); 2028 mutex_exit(p->p_lock); 2029 if (error != 0) { 2030 continue; 2031 } 2032 2033 /* 2034 * Grab a hold on the process. 2035 */ 2036 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 2037 continue; 2038 } 2039 mutex_exit(proc_lock); 2040 2041 /* XXX Do we need to check permission per file? */ 2042 fd = p->p_fd; 2043 mutex_enter(&fd->fd_lock); 2044 for (i = 0; i < fd->fd_nfiles; i++) { 2045 if ((ff = fd->fd_ofiles[i]) == NULL) { 2046 continue; 2047 } 2048 mutex_enter(&ff->ff_lock); 2049 if ((fp = ff->ff_file) == NULL) { 2050 mutex_exit(&ff->ff_lock); 2051 continue; 2052 } 2053 if (len >= elem_size && elem_count > 0) { 2054 mutex_enter(&fp->f_lock); 2055 fill_file(&kf, fp, ff, i, p->p_pid); 2056 mutex_exit(&fp->f_lock); 2057 mutex_exit(&ff->ff_lock); 2058 mutex_exit(&fd->fd_lock); 2059 error = dcopyout(l, &kf, dp, out_size); 2060 mutex_enter(&fd->fd_lock); 2061 if (error) 2062 break; 2063 dp += elem_size; 2064 len -= elem_size; 2065 } else { 2066 mutex_exit(&ff->ff_lock); 2067 } 2068 if (elem_count > 0) { 2069 needed += elem_size; 2070 if (elem_count != INT_MAX) 2071 elem_count--; 2072 } 2073 } 2074 mutex_exit(&fd->fd_lock); 2075 2076 /* 2077 * Release reference to process. 2078 */ 2079 mutex_enter(proc_lock); 2080 rw_exit(&p->p_reflock); 2081 } 2082 mutex_exit(proc_lock); 2083 sysctl_relock(); 2084 break; 2085 default: 2086 return (EINVAL); 2087 } 2088 2089 if (oldp == NULL) 2090 needed += KERN_FILESLOP * elem_size; 2091 *oldlenp = needed; 2092 2093 return (error); 2094 } 2095 2096 static void 2097 fill_file(struct kinfo_file *kp, const file_t *fp, const fdfile_t *ff, 2098 int i, pid_t pid) 2099 { 2100 2101 memset(kp, 0, sizeof(*kp)); 2102 2103 kp->ki_fileaddr = PTRTOUINT64(fp); 2104 kp->ki_flag = fp->f_flag; 2105 kp->ki_iflags = fp->f_iflags; 2106 kp->ki_ftype = fp->f_type; 2107 kp->ki_count = fp->f_count; 2108 kp->ki_msgcount = fp->f_msgcount; 2109 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2110 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2111 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2112 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2113 kp->ki_foffset = fp->f_offset; 2114 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2115 2116 /* vnode information to glue this file to something */ 2117 if (fp->f_type == DTYPE_VNODE) { 2118 struct vnode *vp = (struct vnode *)fp->f_data; 2119 2120 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2121 kp->ki_vsize = vp->v_size; 2122 kp->ki_vtype = vp->v_type; 2123 kp->ki_vtag = vp->v_tag; 2124 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2125 } 2126 2127 /* process information when retrieved via KERN_FILE_BYPID */ 2128 if (ff != NULL) { 2129 kp->ki_pid = pid; 2130 kp->ki_fd = i; 2131 kp->ki_ofileflags = ff->ff_exclose; 2132 kp->ki_usecount = ff->ff_refcnt; 2133 } 2134 } 2135 2136 static int 2137 sysctl_doeproc(SYSCTLFN_ARGS) 2138 { 2139 struct eproc *eproc; 2140 struct kinfo_proc2 *kproc2; 2141 struct kinfo_proc *dp; 2142 struct proc *p, *next, *marker; 2143 char *where, *dp2; 2144 int type, op, arg, error; 2145 u_int elem_size, elem_count; 2146 size_t buflen, needed; 2147 bool match, zombie, mmmbrains; 2148 2149 if (namelen == 1 && name[0] == CTL_QUERY) 2150 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2151 2152 dp = oldp; 2153 dp2 = where = oldp; 2154 buflen = where != NULL ? *oldlenp : 0; 2155 error = 0; 2156 needed = 0; 2157 type = rnode->sysctl_num; 2158 2159 if (type == KERN_PROC) { 2160 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2161 return (EINVAL); 2162 op = name[0]; 2163 if (op != KERN_PROC_ALL) 2164 arg = name[1]; 2165 else 2166 arg = 0; /* Quell compiler warning */ 2167 elem_size = elem_count = 0; /* Ditto */ 2168 } else { 2169 if (namelen != 4) 2170 return (EINVAL); 2171 op = name[0]; 2172 arg = name[1]; 2173 elem_size = name[2]; 2174 elem_count = name[3]; 2175 } 2176 2177 sysctl_unlock(); 2178 2179 if (type == KERN_PROC) { 2180 eproc = kmem_alloc(sizeof(*eproc), KM_SLEEP); 2181 kproc2 = NULL; 2182 } else { 2183 eproc = NULL; 2184 kproc2 = kmem_alloc(sizeof(*kproc2), KM_SLEEP); 2185 } 2186 marker = kmem_alloc(sizeof(*marker), KM_SLEEP); 2187 2188 mutex_enter(proc_lock); 2189 mmmbrains = false; 2190 for (p = LIST_FIRST(&allproc);; p = next) { 2191 if (p == NULL) { 2192 if (!mmmbrains) { 2193 p = LIST_FIRST(&zombproc); 2194 mmmbrains = true; 2195 } 2196 if (p == NULL) 2197 break; 2198 } 2199 next = LIST_NEXT(p, p_list); 2200 2201 /* 2202 * Skip embryonic processes. 2203 */ 2204 if (p->p_stat == SIDL) 2205 continue; 2206 2207 mutex_enter(p->p_lock); 2208 error = kauth_authorize_process(l->l_cred, 2209 KAUTH_PROCESS_CANSEE, p, 2210 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENTRY), NULL, NULL); 2211 if (error != 0) { 2212 mutex_exit(p->p_lock); 2213 continue; 2214 } 2215 2216 /* 2217 * TODO - make more efficient (see notes below). 2218 * do by session. 2219 */ 2220 switch (op) { 2221 case KERN_PROC_PID: 2222 /* could do this with just a lookup */ 2223 match = (p->p_pid == (pid_t)arg); 2224 break; 2225 2226 case KERN_PROC_PGRP: 2227 /* could do this by traversing pgrp */ 2228 match = (p->p_pgrp->pg_id == (pid_t)arg); 2229 break; 2230 2231 case KERN_PROC_SESSION: 2232 match = (p->p_session->s_sid == (pid_t)arg); 2233 break; 2234 2235 case KERN_PROC_TTY: 2236 match = true; 2237 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2238 if ((p->p_lflag & PL_CONTROLT) == 0 || 2239 p->p_session->s_ttyp == NULL || 2240 p->p_session->s_ttyvp != NULL) { 2241 match = false; 2242 } 2243 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2244 p->p_session->s_ttyp == NULL) { 2245 if ((dev_t)arg != KERN_PROC_TTY_NODEV) { 2246 match = false; 2247 } 2248 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) { 2249 match = false; 2250 } 2251 break; 2252 2253 case KERN_PROC_UID: 2254 match = (kauth_cred_geteuid(p->p_cred) == (uid_t)arg); 2255 break; 2256 2257 case KERN_PROC_RUID: 2258 match = (kauth_cred_getuid(p->p_cred) == (uid_t)arg); 2259 break; 2260 2261 case KERN_PROC_GID: 2262 match = (kauth_cred_getegid(p->p_cred) == (uid_t)arg); 2263 break; 2264 2265 case KERN_PROC_RGID: 2266 match = (kauth_cred_getgid(p->p_cred) == (uid_t)arg); 2267 break; 2268 2269 case KERN_PROC_ALL: 2270 match = true; 2271 /* allow everything */ 2272 break; 2273 2274 default: 2275 error = EINVAL; 2276 mutex_exit(p->p_lock); 2277 goto cleanup; 2278 } 2279 if (!match) { 2280 mutex_exit(p->p_lock); 2281 continue; 2282 } 2283 2284 /* 2285 * Grab a hold on the process. 2286 */ 2287 if (mmmbrains) { 2288 zombie = true; 2289 } else { 2290 zombie = !rw_tryenter(&p->p_reflock, RW_READER); 2291 } 2292 if (zombie) { 2293 LIST_INSERT_AFTER(p, marker, p_list); 2294 } 2295 2296 if (type == KERN_PROC) { 2297 if (buflen >= sizeof(struct kinfo_proc)) { 2298 fill_eproc(p, eproc, zombie); 2299 mutex_exit(p->p_lock); 2300 mutex_exit(proc_lock); 2301 error = dcopyout(l, p, &dp->kp_proc, 2302 sizeof(struct proc)); 2303 mutex_enter(proc_lock); 2304 if (error) { 2305 goto bah; 2306 } 2307 error = dcopyout(l, eproc, &dp->kp_eproc, 2308 sizeof(*eproc)); 2309 if (error) { 2310 goto bah; 2311 } 2312 dp++; 2313 buflen -= sizeof(struct kinfo_proc); 2314 } else { 2315 mutex_exit(p->p_lock); 2316 } 2317 needed += sizeof(struct kinfo_proc); 2318 } else { /* KERN_PROC2 */ 2319 if (buflen >= elem_size && elem_count > 0) { 2320 fill_kproc2(p, kproc2, zombie); 2321 mutex_exit(p->p_lock); 2322 mutex_exit(proc_lock); 2323 /* 2324 * Copy out elem_size, but not larger than 2325 * the size of a struct kinfo_proc2. 2326 */ 2327 error = dcopyout(l, kproc2, dp2, 2328 min(sizeof(*kproc2), elem_size)); 2329 mutex_enter(proc_lock); 2330 if (error) { 2331 goto bah; 2332 } 2333 dp2 += elem_size; 2334 buflen -= elem_size; 2335 elem_count--; 2336 } else { 2337 mutex_exit(p->p_lock); 2338 } 2339 needed += elem_size; 2340 } 2341 2342 /* 2343 * Release reference to process. 2344 */ 2345 if (zombie) { 2346 next = LIST_NEXT(marker, p_list); 2347 LIST_REMOVE(marker, p_list); 2348 } else { 2349 rw_exit(&p->p_reflock); 2350 } 2351 } 2352 mutex_exit(proc_lock); 2353 2354 if (where != NULL) { 2355 if (type == KERN_PROC) 2356 *oldlenp = (char *)dp - where; 2357 else 2358 *oldlenp = dp2 - where; 2359 if (needed > *oldlenp) { 2360 error = ENOMEM; 2361 goto out; 2362 } 2363 } else { 2364 needed += KERN_PROCSLOP; 2365 *oldlenp = needed; 2366 } 2367 if (kproc2) 2368 kmem_free(kproc2, sizeof(*kproc2)); 2369 if (eproc) 2370 kmem_free(eproc, sizeof(*eproc)); 2371 if (marker) 2372 kmem_free(marker, sizeof(*marker)); 2373 sysctl_relock(); 2374 return 0; 2375 bah: 2376 if (zombie) 2377 LIST_REMOVE(marker, p_list); 2378 else 2379 rw_exit(&p->p_reflock); 2380 cleanup: 2381 mutex_exit(proc_lock); 2382 out: 2383 if (kproc2) 2384 kmem_free(kproc2, sizeof(*kproc2)); 2385 if (eproc) 2386 kmem_free(eproc, sizeof(*eproc)); 2387 if (marker) 2388 kmem_free(marker, sizeof(*marker)); 2389 sysctl_relock(); 2390 return error; 2391 } 2392 2393 /* 2394 * sysctl helper routine for kern.proc_args pseudo-subtree. 2395 */ 2396 static int 2397 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2398 { 2399 struct ps_strings pss; 2400 struct proc *p; 2401 size_t len, i; 2402 struct uio auio; 2403 struct iovec aiov; 2404 pid_t pid; 2405 int nargv, type, error, argvlen; 2406 char *arg; 2407 char **argv = NULL; 2408 char *tmp; 2409 struct vmspace *vmspace; 2410 vaddr_t psstr_addr; 2411 vaddr_t offsetn; 2412 vaddr_t offsetv; 2413 2414 if (namelen == 1 && name[0] == CTL_QUERY) 2415 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2416 2417 if (newp != NULL || namelen != 2) 2418 return (EINVAL); 2419 pid = name[0]; 2420 type = name[1]; 2421 argv = NULL; 2422 argvlen = 0; 2423 2424 switch (type) { 2425 case KERN_PROC_ARGV: 2426 case KERN_PROC_NARGV: 2427 case KERN_PROC_ENV: 2428 case KERN_PROC_NENV: 2429 /* ok */ 2430 break; 2431 default: 2432 return (EINVAL); 2433 } 2434 2435 sysctl_unlock(); 2436 2437 /* check pid */ 2438 mutex_enter(proc_lock); 2439 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2440 error = EINVAL; 2441 goto out_locked; 2442 } 2443 mutex_enter(p->p_lock); 2444 2445 /* Check permission. */ 2446 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2447 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2448 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ARGS), NULL, NULL); 2449 else if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) 2450 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2451 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENV), NULL, NULL); 2452 else 2453 error = EINVAL; /* XXXGCC */ 2454 if (error) { 2455 mutex_exit(p->p_lock); 2456 goto out_locked; 2457 } 2458 2459 if (oldp == NULL) { 2460 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2461 *oldlenp = sizeof (int); 2462 else 2463 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2464 error = 0; 2465 mutex_exit(p->p_lock); 2466 goto out_locked; 2467 } 2468 2469 /* 2470 * Zombies don't have a stack, so we can't read their psstrings. 2471 * System processes also don't have a user stack. 2472 */ 2473 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2474 error = EINVAL; 2475 mutex_exit(p->p_lock); 2476 goto out_locked; 2477 } 2478 2479 /* 2480 * Lock the process down in memory. 2481 */ 2482 psstr_addr = (vaddr_t)p->p_psstr; 2483 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2484 offsetn = p->p_psnargv; 2485 offsetv = p->p_psargv; 2486 } else { 2487 offsetn = p->p_psnenv; 2488 offsetv = p->p_psenv; 2489 } 2490 vmspace = p->p_vmspace; 2491 uvmspace_addref(vmspace); 2492 mutex_exit(p->p_lock); 2493 mutex_exit(proc_lock); 2494 2495 /* 2496 * Allocate a temporary buffer to hold the arguments. 2497 */ 2498 arg = kmem_alloc(PAGE_SIZE, KM_SLEEP); 2499 2500 /* 2501 * Read in the ps_strings structure. 2502 */ 2503 aiov.iov_base = &pss; 2504 aiov.iov_len = sizeof(pss); 2505 auio.uio_iov = &aiov; 2506 auio.uio_iovcnt = 1; 2507 auio.uio_offset = psstr_addr; 2508 auio.uio_resid = sizeof(pss); 2509 auio.uio_rw = UIO_READ; 2510 UIO_SETUP_SYSSPACE(&auio); 2511 error = uvm_io(&vmspace->vm_map, &auio); 2512 if (error) 2513 goto done; 2514 2515 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2516 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2517 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2518 *oldlenp = sizeof(nargv); 2519 goto done; 2520 } 2521 /* 2522 * Now read the address of the argument vector. 2523 */ 2524 switch (type) { 2525 case KERN_PROC_ARGV: 2526 /* FALLTHROUGH */ 2527 case KERN_PROC_ENV: 2528 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2529 break; 2530 default: 2531 error = EINVAL; 2532 goto done; 2533 } 2534 2535 #ifdef COMPAT_NETBSD32 2536 if (p->p_flag & PK_32) 2537 len = sizeof(netbsd32_charp) * nargv; 2538 else 2539 #endif 2540 len = sizeof(char *) * nargv; 2541 2542 if ((argvlen = len) != 0) 2543 argv = kmem_alloc(len, KM_SLEEP); 2544 2545 aiov.iov_base = argv; 2546 aiov.iov_len = len; 2547 auio.uio_iov = &aiov; 2548 auio.uio_iovcnt = 1; 2549 auio.uio_offset = (off_t)(unsigned long)tmp; 2550 auio.uio_resid = len; 2551 auio.uio_rw = UIO_READ; 2552 UIO_SETUP_SYSSPACE(&auio); 2553 error = uvm_io(&vmspace->vm_map, &auio); 2554 if (error) 2555 goto done; 2556 2557 /* 2558 * Now copy each string. 2559 */ 2560 len = 0; /* bytes written to user buffer */ 2561 for (i = 0; i < nargv; i++) { 2562 int finished = 0; 2563 vaddr_t base; 2564 size_t xlen; 2565 int j; 2566 2567 #ifdef COMPAT_NETBSD32 2568 if (p->p_flag & PK_32) { 2569 netbsd32_charp *argv32; 2570 2571 argv32 = (netbsd32_charp *)argv; 2572 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2573 } else 2574 #endif 2575 base = (vaddr_t)argv[i]; 2576 2577 /* 2578 * The program has messed around with its arguments, 2579 * possibly deleting some, and replacing them with 2580 * NULL's. Treat this as the last argument and not 2581 * a failure. 2582 */ 2583 if (base == 0) 2584 break; 2585 2586 while (!finished) { 2587 xlen = PAGE_SIZE - (base & PAGE_MASK); 2588 2589 aiov.iov_base = arg; 2590 aiov.iov_len = PAGE_SIZE; 2591 auio.uio_iov = &aiov; 2592 auio.uio_iovcnt = 1; 2593 auio.uio_offset = base; 2594 auio.uio_resid = xlen; 2595 auio.uio_rw = UIO_READ; 2596 UIO_SETUP_SYSSPACE(&auio); 2597 error = uvm_io(&vmspace->vm_map, &auio); 2598 if (error) 2599 goto done; 2600 2601 /* Look for the end of the string */ 2602 for (j = 0; j < xlen; j++) { 2603 if (arg[j] == '\0') { 2604 xlen = j + 1; 2605 finished = 1; 2606 break; 2607 } 2608 } 2609 2610 /* Check for user buffer overflow */ 2611 if (len + xlen > *oldlenp) { 2612 finished = 1; 2613 if (len > *oldlenp) 2614 xlen = 0; 2615 else 2616 xlen = *oldlenp - len; 2617 } 2618 2619 /* Copyout the page */ 2620 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2621 if (error) 2622 goto done; 2623 2624 len += xlen; 2625 base += xlen; 2626 } 2627 } 2628 *oldlenp = len; 2629 2630 done: 2631 if (argvlen != 0) 2632 kmem_free(argv, argvlen); 2633 uvmspace_free(vmspace); 2634 kmem_free(arg, PAGE_SIZE); 2635 sysctl_relock(); 2636 return error; 2637 2638 out_locked: 2639 mutex_exit(proc_lock); 2640 sysctl_relock(); 2641 return error; 2642 } 2643 2644 static int 2645 sysctl_security_setidcore(SYSCTLFN_ARGS) 2646 { 2647 int newsize, error; 2648 struct sysctlnode node; 2649 2650 node = *rnode; 2651 node.sysctl_data = &newsize; 2652 newsize = *(int *)rnode->sysctl_data; 2653 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2654 if (error || newp == NULL) 2655 return error; 2656 2657 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2658 0, NULL, NULL, NULL)) 2659 return (EPERM); 2660 2661 *(int *)rnode->sysctl_data = newsize; 2662 2663 return 0; 2664 } 2665 2666 static int 2667 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2668 { 2669 int error; 2670 char *newsetidcorename; 2671 struct sysctlnode node; 2672 2673 newsetidcorename = PNBUF_GET(); 2674 node = *rnode; 2675 node.sysctl_data = newsetidcorename; 2676 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2677 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2678 if (error || newp == NULL) { 2679 goto out; 2680 } 2681 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2682 0, NULL, NULL, NULL)) { 2683 error = EPERM; 2684 goto out; 2685 } 2686 if (strlen(newsetidcorename) == 0) { 2687 error = EINVAL; 2688 goto out; 2689 } 2690 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2691 out: 2692 PNBUF_PUT(newsetidcorename); 2693 return error; 2694 } 2695 2696 /* 2697 * sysctl helper routine for kern.cp_id node. Maps cpus to their 2698 * cpuids. 2699 */ 2700 static int 2701 sysctl_kern_cpid(SYSCTLFN_ARGS) 2702 { 2703 struct sysctlnode node = *rnode; 2704 uint64_t *cp_id = NULL; 2705 int error, n = ncpu; 2706 struct cpu_info *ci; 2707 CPU_INFO_ITERATOR cii; 2708 2709 /* 2710 * Here you may either retrieve a single cpu id or the whole 2711 * set. The size you get back when probing depends on what 2712 * you ask for. 2713 */ 2714 switch (namelen) { 2715 case 0: 2716 node.sysctl_size = n * sizeof(uint64_t); 2717 n = -2; /* ALL */ 2718 break; 2719 case 1: 2720 if (name[0] < 0 || name[0] >= n) 2721 return (ENOENT); /* ENOSUCHPROCESSOR */ 2722 node.sysctl_size = sizeof(uint64_t); 2723 n = name[0]; 2724 /* 2725 * adjust these so that sysctl_lookup() will be happy 2726 */ 2727 name++; 2728 namelen--; 2729 break; 2730 default: 2731 return (EINVAL); 2732 } 2733 2734 cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP); 2735 if (cp_id == NULL) 2736 return (ENOMEM); 2737 node.sysctl_data = cp_id; 2738 memset(cp_id, 0, node.sysctl_size); 2739 2740 for (CPU_INFO_FOREACH(cii, ci)) { 2741 if (n <= 0) 2742 cp_id[0] = cpu_index(ci); 2743 /* 2744 * if a specific processor was requested and we just 2745 * did it, we're done here 2746 */ 2747 if (n == 0) 2748 break; 2749 /* 2750 * if doing "all", skip to next cp_id slot for next processor 2751 */ 2752 if (n == -2) 2753 cp_id++; 2754 /* 2755 * if we're doing a specific processor, we're one 2756 * processor closer 2757 */ 2758 if (n > 0) 2759 n--; 2760 } 2761 2762 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2763 kmem_free(node.sysctl_data, node.sysctl_size); 2764 return (error); 2765 } 2766 2767 /* 2768 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 2769 * calculate on the fly taking into account integer overflow and the 2770 * current wired count. 2771 */ 2772 static int 2773 sysctl_hw_usermem(SYSCTLFN_ARGS) 2774 { 2775 u_int ui; 2776 u_quad_t uq; 2777 struct sysctlnode node; 2778 2779 node = *rnode; 2780 switch (rnode->sysctl_num) { 2781 case HW_USERMEM: 2782 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2783 ui = UINT_MAX; 2784 else 2785 ui *= PAGE_SIZE; 2786 node.sysctl_data = &ui; 2787 break; 2788 case HW_USERMEM64: 2789 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2790 node.sysctl_data = &uq; 2791 break; 2792 default: 2793 return (EINVAL); 2794 } 2795 2796 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2797 } 2798 2799 /* 2800 * sysctl helper routine for kern.cnmagic node. Pulls the old value 2801 * out, encoded, and stuffs the new value in for decoding. 2802 */ 2803 static int 2804 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2805 { 2806 char magic[CNS_LEN]; 2807 int error; 2808 struct sysctlnode node; 2809 2810 if (oldp) 2811 cn_get_magic(magic, CNS_LEN); 2812 node = *rnode; 2813 node.sysctl_data = &magic[0]; 2814 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2815 if (error || newp == NULL) 2816 return (error); 2817 2818 return (cn_set_magic(magic)); 2819 } 2820 2821 /* 2822 * ******************************************************************** 2823 * section 3: public helper routines that are used for more than one 2824 * node 2825 * ******************************************************************** 2826 */ 2827 2828 /* 2829 * sysctl helper routine for the kern.root_device node and some ports' 2830 * machdep.root_device nodes. 2831 */ 2832 int 2833 sysctl_root_device(SYSCTLFN_ARGS) 2834 { 2835 struct sysctlnode node; 2836 2837 node = *rnode; 2838 node.sysctl_data = root_device->dv_xname; 2839 node.sysctl_size = strlen(device_xname(root_device)) + 1; 2840 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2841 } 2842 2843 /* 2844 * sysctl helper routine for kern.consdev, dependent on the current 2845 * state of the console. Also used for machdep.console_device on some 2846 * ports. 2847 */ 2848 int 2849 sysctl_consdev(SYSCTLFN_ARGS) 2850 { 2851 dev_t consdev; 2852 struct sysctlnode node; 2853 2854 if (cn_tab != NULL) 2855 consdev = cn_tab->cn_dev; 2856 else 2857 consdev = NODEV; 2858 node = *rnode; 2859 node.sysctl_data = &consdev; 2860 node.sysctl_size = sizeof(consdev); 2861 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2862 } 2863 2864 /* 2865 * ******************************************************************** 2866 * section 4: support for some helpers 2867 * ******************************************************************** 2868 */ 2869 2870 /* 2871 * Fill in a kinfo_proc2 structure for the specified process. 2872 */ 2873 static void 2874 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki, bool zombie) 2875 { 2876 struct tty *tp; 2877 struct lwp *l, *l2; 2878 struct timeval ut, st, rt; 2879 sigset_t ss1, ss2; 2880 struct rusage ru; 2881 struct vmspace *vm; 2882 2883 KASSERT(mutex_owned(proc_lock)); 2884 KASSERT(mutex_owned(p->p_lock)); 2885 2886 sigemptyset(&ss1); 2887 sigemptyset(&ss2); 2888 memset(ki, 0, sizeof(*ki)); 2889 2890 ki->p_paddr = PTRTOUINT64(p); 2891 ki->p_fd = PTRTOUINT64(p->p_fd); 2892 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2893 ki->p_stats = PTRTOUINT64(p->p_stats); 2894 ki->p_limit = PTRTOUINT64(p->p_limit); 2895 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2896 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2897 ki->p_sess = PTRTOUINT64(p->p_session); 2898 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2899 ki->p_ru = PTRTOUINT64(&p->p_stats->p_ru); 2900 ki->p_eflag = 0; 2901 ki->p_exitsig = p->p_exitsig; 2902 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2903 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2904 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2905 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2906 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2907 ki->p_pid = p->p_pid; 2908 if (p->p_pptr) 2909 ki->p_ppid = p->p_pptr->p_pid; 2910 else 2911 ki->p_ppid = 0; 2912 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2913 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2914 ki->p_gid = kauth_cred_getegid(p->p_cred); 2915 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2916 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2917 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2918 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2919 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2920 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0])), 2921 UIO_SYSSPACE); 2922 2923 ki->p_uticks = p->p_uticks; 2924 ki->p_sticks = p->p_sticks; 2925 ki->p_iticks = p->p_iticks; 2926 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2927 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2928 ki->p_traceflag = p->p_traceflag; 2929 2930 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2931 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2932 2933 ki->p_cpticks = 0; 2934 ki->p_pctcpu = p->p_pctcpu; 2935 ki->p_estcpu = 0; 2936 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2937 ki->p_realstat = p->p_stat; 2938 ki->p_nice = p->p_nice; 2939 ki->p_xstat = p->p_xstat; 2940 ki->p_acflag = p->p_acflag; 2941 2942 strncpy(ki->p_comm, p->p_comm, 2943 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2944 strncpy(ki->p_ename, p->p_emul->e_name, sizeof(ki->p_ename)); 2945 2946 ki->p_nlwps = p->p_nlwps; 2947 ki->p_realflag = ki->p_flag; 2948 2949 if (p->p_stat != SIDL && !P_ZOMBIE(p) && !zombie) { 2950 vm = p->p_vmspace; 2951 ki->p_vm_rssize = vm_resident_count(vm); 2952 ki->p_vm_tsize = vm->vm_tsize; 2953 ki->p_vm_dsize = vm->vm_dsize; 2954 ki->p_vm_ssize = vm->vm_ssize; 2955 2956 /* Pick the primary (first) LWP */ 2957 l = LIST_FIRST(&p->p_lwps); 2958 KASSERT(l != NULL); 2959 lwp_lock(l); 2960 ki->p_nrlwps = p->p_nrlwps; 2961 ki->p_forw = 0; 2962 ki->p_back = 0; 2963 ki->p_addr = PTRTOUINT64(l->l_addr); 2964 ki->p_stat = l->l_stat; 2965 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2966 ki->p_swtime = l->l_swtime; 2967 ki->p_slptime = l->l_slptime; 2968 if (l->l_stat == LSONPROC) 2969 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2970 else 2971 ki->p_schedflags = 0; 2972 ki->p_holdcnt = l->l_holdcnt; 2973 ki->p_priority = lwp_eprio(l); 2974 ki->p_usrpri = l->l_priority; 2975 if (l->l_wchan) 2976 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2977 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2978 ki->p_cpuid = cpu_index(l->l_cpu); 2979 lwp_unlock(l); 2980 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2981 /* This is hardly correct, but... */ 2982 sigplusset(&l->l_sigpend.sp_set, &ss1); 2983 sigplusset(&l->l_sigmask, &ss2); 2984 ki->p_cpticks += l->l_cpticks; 2985 ki->p_pctcpu += l->l_pctcpu; 2986 ki->p_estcpu += l->l_estcpu; 2987 } 2988 } 2989 sigplusset(&p->p_sigpend.sp_set, &ss2); 2990 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2991 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2992 2993 if (p->p_session != NULL) { 2994 ki->p_sid = p->p_session->s_sid; 2995 ki->p__pgid = p->p_pgrp->pg_id; 2996 if (p->p_session->s_ttyvp) 2997 ki->p_eflag |= EPROC_CTTY; 2998 if (SESS_LEADER(p)) 2999 ki->p_eflag |= EPROC_SLEADER; 3000 strncpy(ki->p_login, p->p_session->s_login, 3001 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 3002 ki->p_jobc = p->p_pgrp->pg_jobc; 3003 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 3004 ki->p_tdev = tp->t_dev; 3005 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3006 ki->p_tsess = PTRTOUINT64(tp->t_session); 3007 } else { 3008 ki->p_tdev = NODEV; 3009 } 3010 } 3011 3012 if (!P_ZOMBIE(p) && !zombie) { 3013 ki->p_uvalid = 1; 3014 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 3015 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 3016 3017 calcru(p, &ut, &st, NULL, &rt); 3018 ki->p_rtime_sec = rt.tv_sec; 3019 ki->p_rtime_usec = rt.tv_usec; 3020 ki->p_uutime_sec = ut.tv_sec; 3021 ki->p_uutime_usec = ut.tv_usec; 3022 ki->p_ustime_sec = st.tv_sec; 3023 ki->p_ustime_usec = st.tv_usec; 3024 3025 memcpy(&ru, &p->p_stats->p_ru, sizeof(ru)); 3026 ki->p_uru_nvcsw = 0; 3027 ki->p_uru_nivcsw = 0; 3028 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 3029 ki->p_uru_nvcsw += (l2->l_ncsw - l2->l_nivcsw); 3030 ki->p_uru_nivcsw += l2->l_nivcsw; 3031 ruadd(&ru, &l2->l_ru); 3032 } 3033 ki->p_uru_maxrss = ru.ru_maxrss; 3034 ki->p_uru_ixrss = ru.ru_ixrss; 3035 ki->p_uru_idrss = ru.ru_idrss; 3036 ki->p_uru_isrss = ru.ru_isrss; 3037 ki->p_uru_minflt = ru.ru_minflt; 3038 ki->p_uru_majflt = ru.ru_majflt; 3039 ki->p_uru_nswap = ru.ru_nswap; 3040 ki->p_uru_inblock = ru.ru_inblock; 3041 ki->p_uru_oublock = ru.ru_oublock; 3042 ki->p_uru_msgsnd = ru.ru_msgsnd; 3043 ki->p_uru_msgrcv = ru.ru_msgrcv; 3044 ki->p_uru_nsignals = ru.ru_nsignals; 3045 3046 timeradd(&p->p_stats->p_cru.ru_utime, 3047 &p->p_stats->p_cru.ru_stime, &ut); 3048 ki->p_uctime_sec = ut.tv_sec; 3049 ki->p_uctime_usec = ut.tv_usec; 3050 } 3051 } 3052 3053 /* 3054 * Fill in a kinfo_lwp structure for the specified lwp. 3055 */ 3056 static void 3057 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3058 { 3059 struct proc *p = l->l_proc; 3060 struct timeval tv; 3061 3062 KASSERT(lwp_locked(l, NULL)); 3063 3064 kl->l_forw = 0; 3065 kl->l_back = 0; 3066 kl->l_laddr = PTRTOUINT64(l); 3067 kl->l_addr = PTRTOUINT64(l->l_addr); 3068 kl->l_stat = l->l_stat; 3069 kl->l_lid = l->l_lid; 3070 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 3071 kl->l_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 3072 3073 kl->l_swtime = l->l_swtime; 3074 kl->l_slptime = l->l_slptime; 3075 if (l->l_stat == LSONPROC) 3076 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3077 else 3078 kl->l_schedflags = 0; 3079 kl->l_holdcnt = l->l_holdcnt; 3080 kl->l_priority = lwp_eprio(l); 3081 kl->l_usrpri = l->l_priority; 3082 if (l->l_wchan) 3083 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3084 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3085 kl->l_cpuid = cpu_index(l->l_cpu); 3086 bintime2timeval(&l->l_rtime, &tv); 3087 kl->l_rtime_sec = tv.tv_sec; 3088 kl->l_rtime_usec = tv.tv_usec; 3089 kl->l_cpticks = l->l_cpticks; 3090 kl->l_pctcpu = l->l_pctcpu; 3091 kl->l_pid = p->p_pid; 3092 if (l->l_name == NULL) 3093 kl->l_name[0] = '\0'; 3094 else 3095 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 3096 } 3097 3098 /* 3099 * Fill in an eproc structure for the specified process. 3100 */ 3101 void 3102 fill_eproc(struct proc *p, struct eproc *ep, bool zombie) 3103 { 3104 struct tty *tp; 3105 struct lwp *l; 3106 3107 KASSERT(mutex_owned(proc_lock)); 3108 KASSERT(mutex_owned(p->p_lock)); 3109 3110 memset(ep, 0, sizeof(*ep)); 3111 3112 ep->e_paddr = p; 3113 ep->e_sess = p->p_session; 3114 if (p->p_cred) { 3115 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 3116 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 3117 } 3118 if (p->p_stat != SIDL && !P_ZOMBIE(p) && !zombie) { 3119 struct vmspace *vm = p->p_vmspace; 3120 3121 ep->e_vm.vm_rssize = vm_resident_count(vm); 3122 ep->e_vm.vm_tsize = vm->vm_tsize; 3123 ep->e_vm.vm_dsize = vm->vm_dsize; 3124 ep->e_vm.vm_ssize = vm->vm_ssize; 3125 3126 /* Pick the primary (first) LWP */ 3127 l = LIST_FIRST(&p->p_lwps); 3128 KASSERT(l != NULL); 3129 lwp_lock(l); 3130 if (l->l_wchan) 3131 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3132 lwp_unlock(l); 3133 } 3134 if (p->p_pptr) 3135 ep->e_ppid = p->p_pptr->p_pid; 3136 if (p->p_pgrp && p->p_session) { 3137 ep->e_pgid = p->p_pgrp->pg_id; 3138 ep->e_jobc = p->p_pgrp->pg_jobc; 3139 ep->e_sid = p->p_session->s_sid; 3140 if ((p->p_lflag & PL_CONTROLT) && 3141 (tp = ep->e_sess->s_ttyp)) { 3142 ep->e_tdev = tp->t_dev; 3143 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3144 ep->e_tsess = tp->t_session; 3145 } else 3146 ep->e_tdev = NODEV; 3147 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3148 if (SESS_LEADER(p)) 3149 ep->e_flag |= EPROC_SLEADER; 3150 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3151 } 3152 ep->e_xsize = ep->e_xrssize = 0; 3153 ep->e_xccount = ep->e_xswrss = 0; 3154 } 3155 3156 u_int 3157 sysctl_map_flags(const u_int *map, u_int word) 3158 { 3159 u_int rv; 3160 3161 for (rv = 0; *map != 0; map += 2) 3162 if ((word & map[0]) != 0) 3163 rv |= map[1]; 3164 3165 return rv; 3166 } 3167
Indexes created Sun Sep 21 14:09:52 GMT 2025