1 /*- 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Mike Karels at Berkeley Software Design, Inc. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93 33 * $FreeBSD$ 34 */ 35 36 #ifndef _SYS_SYSCTL_H_ 37 #define _SYS_SYSCTL_H_ 38 39 #include <sys/queue.h> 40 41 struct thread; 42 /* 43 * Definitions for sysctl call. The sysctl call uses a hierarchical name 44 * for objects that can be examined or modified. The name is expressed as 45 * a sequence of integers. Like a file path name, the meaning of each 46 * component depends on its place in the hierarchy. The top-level and kern 47 * identifiers are defined here, and other identifiers are defined in the 48 * respective subsystem header files. 49 */ 50 51 #define CTL_MAXNAME 24 /* largest number of components supported */ 52 53 /* 54 * Each subsystem defined by sysctl defines a list of variables 55 * for that subsystem. Each name is either a node with further 56 * levels defined below it, or it is a leaf of some particular 57 * type given below. Each sysctl level defines a set of name/type 58 * pairs to be used by sysctl(8) in manipulating the subsystem. 59 */ 60 struct ctlname { 61 char *ctl_name; /* subsystem name */ 62 int ctl_type; /* type of name */ 63 }; 64 65 #define CTLTYPE 0xf /* mask for the type */ 66 #define CTLTYPE_NODE 1 /* name is a node */ 67 #define CTLTYPE_INT 2 /* name describes an integer */ 68 #define CTLTYPE_STRING 3 /* name describes a string */ 69 #define CTLTYPE_S64 4 /* name describes a signed 64-bit number */ 70 #define CTLTYPE_OPAQUE 5 /* name describes a structure */ 71 #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ 72 #define CTLTYPE_UINT 6 /* name describes an unsigned integer */ 73 #define CTLTYPE_LONG 7 /* name describes a long */ 74 #define CTLTYPE_ULONG 8 /* name describes an unsigned long */ 75 #define CTLTYPE_U64 9 /* name describes an unsigned 64-bit number */ 76 #define CTLTYPE_U8 0xa /* name describes an unsigned 8-bit number */ 77 #define CTLTYPE_U16 0xb /* name describes an unsigned 16-bit number */ 78 #define CTLTYPE_S8 0xc /* name describes a signed 8-bit number */ 79 #define CTLTYPE_S16 0xd /* name describes a signed 16-bit number */ 80 #define CTLTYPE_S32 0xe /* name describes a signed 32-bit number */ 81 #define CTLTYPE_U32 0xf /* name describes an unsigned 32-bit number */ 82 83 #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ 84 #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ 85 #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) 86 #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ 87 #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ 88 #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */ 89 #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */ 90 #define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */ 91 #define CTLMASK_SECURE 0x00F00000 /* Secure level */ 92 #define CTLFLAG_TUN 0x00080000 /* Default value is loaded from getenv() */ 93 #define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN) 94 #define CTLFLAG_RWTUN (CTLFLAG_RW|CTLFLAG_TUN) 95 #define CTLFLAG_MPSAFE 0x00040000 /* Handler is MP safe */ 96 #define CTLFLAG_VNET 0x00020000 /* Prisons with vnet can fiddle */ 97 #define CTLFLAG_DYING 0x00010000 /* Oid is being removed */ 98 #define CTLFLAG_CAPRD 0x00008000 /* Can be read in capability mode */ 99 #define CTLFLAG_CAPWR 0x00004000 /* Can be written in capability mode */ 100 #define CTLFLAG_STATS 0x00002000 /* Statistics, not a tuneable */ 101 #define CTLFLAG_NOFETCH 0x00001000 /* Don't fetch tunable from getenv() */ 102 #define CTLFLAG_CAPRW (CTLFLAG_CAPRD|CTLFLAG_CAPWR) 103 104 /* 105 * Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1. 106 * 107 * Secure when the securelevel is raised to at least N. 108 */ 109 #define CTLSHIFT_SECURE 20 110 #define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE)) 111 #define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE)) 112 #define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE)) 113 114 /* 115 * USE THIS instead of a hardwired number from the categories below 116 * to get dynamically assigned sysctl entries using the linker-set 117 * technology. This is the way nearly all new sysctl variables should 118 * be implemented. 119 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 120 */ 121 #define OID_AUTO (-1) 122 123 /* 124 * The starting number for dynamically-assigned entries. WARNING! 125 * ALL static sysctl entries should have numbers LESS than this! 126 */ 127 #define CTL_AUTO_START 0x100 128 129 #ifdef _KERNEL 130 #include <sys/linker_set.h> 131 132 #ifdef KLD_MODULE 133 /* XXX allow overspecification of type in external kernel modules */ 134 #define SYSCTL_CT_ASSERT_MASK CTLTYPE 135 #else 136 #define SYSCTL_CT_ASSERT_MASK 0 137 #endif 138 139 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \ 140 intmax_t arg2, struct sysctl_req *req 141 142 /* definitions for sysctl_req 'lock' member */ 143 #define REQ_UNWIRED 1 144 #define REQ_WIRED 2 145 146 /* definitions for sysctl_req 'flags' member */ 147 #if defined(__amd64__) || defined(__powerpc64__) ||\ 148 (defined(__mips__) && defined(__mips_n64)) 149 #define SCTL_MASK32 1 /* 32 bit emulation */ 150 #endif 151 152 /* 153 * This describes the access space for a sysctl request. This is needed 154 * so that we can use the interface from the kernel or from user-space. 155 */ 156 struct sysctl_req { 157 struct thread *td; /* used for access checking */ 158 int lock; /* wiring state */ 159 void *oldptr; 160 size_t oldlen; 161 size_t oldidx; 162 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 163 void *newptr; 164 size_t newlen; 165 size_t newidx; 166 int (*newfunc)(struct sysctl_req *, void *, size_t); 167 size_t validlen; 168 int flags; 169 }; 170 171 SLIST_HEAD(sysctl_oid_list, sysctl_oid); 172 173 /* 174 * This describes one "oid" in the MIB tree. Potentially more nodes can 175 * be hidden behind it, expanded by the handler. 176 */ 177 struct sysctl_oid { 178 struct sysctl_oid_list oid_children; 179 struct sysctl_oid_list *oid_parent; 180 SLIST_ENTRY(sysctl_oid) oid_link; 181 int oid_number; 182 u_int oid_kind; 183 void *oid_arg1; 184 intmax_t oid_arg2; 185 const char *oid_name; 186 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 187 const char *oid_fmt; 188 int oid_refcnt; 189 u_int oid_running; 190 const char *oid_descr; 191 }; 192 193 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 194 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 195 #define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1) 196 197 int sysctl_handle_8(SYSCTL_HANDLER_ARGS); 198 int sysctl_handle_16(SYSCTL_HANDLER_ARGS); 199 int sysctl_handle_32(SYSCTL_HANDLER_ARGS); 200 int sysctl_handle_64(SYSCTL_HANDLER_ARGS); 201 int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 202 int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS); 203 int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 204 int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 205 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 206 int sysctl_handle_counter_u64(SYSCTL_HANDLER_ARGS); 207 int sysctl_handle_counter_u64_array(SYSCTL_HANDLER_ARGS); 208 209 int sysctl_handle_uma_zone_max(SYSCTL_HANDLER_ARGS); 210 int sysctl_handle_uma_zone_cur(SYSCTL_HANDLER_ARGS); 211 212 int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS); 213 int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS); 214 int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS); 215 216 /* 217 * These functions are used to add/remove an oid from the mib. 218 */ 219 void sysctl_register_oid(struct sysctl_oid *oidp); 220 void sysctl_unregister_oid(struct sysctl_oid *oidp); 221 222 /* Declare a static oid to allow child oids to be added to it. */ 223 #define SYSCTL_DECL(name) \ 224 extern struct sysctl_oid sysctl__##name 225 226 /* Hide these in macros. */ 227 #define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children) 228 #define SYSCTL_PARENT(oid_ptr) \ 229 (((oid_ptr)->oid_parent != &sysctl__children) ? \ 230 __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \ 231 oid_children) : (struct sysctl_oid *)NULL) 232 #define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children) 233 234 /* === Structs and macros related to context handling. === */ 235 236 /* All dynamically created sysctls can be tracked in a context list. */ 237 struct sysctl_ctx_entry { 238 struct sysctl_oid *entry; 239 TAILQ_ENTRY(sysctl_ctx_entry) link; 240 }; 241 242 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 243 244 #define SYSCTL_NODE_CHILDREN(parent, name) \ 245 sysctl__##parent##_##name.oid_children 246 247 #ifndef NO_SYSCTL_DESCR 248 #define __DESCR(d) d 249 #else 250 #define __DESCR(d) "" 251 #endif 252 253 /* This macro is only for internal use */ 254 #define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr) \ 255 struct sysctl_oid id = { \ 256 .oid_parent = (parent_child_head), \ 257 .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \ 258 .oid_number = (nbr), \ 259 .oid_kind = (kind), \ 260 .oid_arg1 = (a1), \ 261 .oid_arg2 = (a2), \ 262 .oid_name = (name), \ 263 .oid_handler = (handler), \ 264 .oid_fmt = (fmt), \ 265 .oid_descr = __DESCR(descr) \ 266 }; \ 267 DATA_SET(sysctl_set, id) 268 269 /* This constructs a static "raw" MIB oid. */ 270 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 271 static SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 272 SYSCTL_CHILDREN(&sysctl__##parent), \ 273 nbr, #name, kind, a1, a2, handler, fmt, descr) 274 275 /* This constructs a global "raw" MIB oid. */ 276 #define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 277 SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 278 SYSCTL_CHILDREN(&sysctl__##parent), \ 279 nbr, #name, kind, a1, a2, handler, fmt, descr) 280 281 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 282 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr)) 283 284 /* This constructs a root node from which other nodes can hang. */ 285 #define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \ 286 SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \ 287 nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \ 288 handler, "N", descr); \ 289 CTASSERT(((access) & CTLTYPE) == 0 || \ 290 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 291 292 /* This constructs a node from which other oids can hang. */ 293 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 294 SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \ 295 NULL, 0, handler, "N", descr); \ 296 CTASSERT(((access) & CTLTYPE) == 0 || \ 297 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 298 299 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 300 ({ \ 301 CTASSERT(((access) & CTLTYPE) == 0 || \ 302 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 303 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 304 NULL, 0, handler, "N", __DESCR(descr)); \ 305 }) 306 307 #define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \ 308 ({ \ 309 CTASSERT(((access) & CTLTYPE) == 0 || \ 310 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 311 sysctl_add_oid(ctx, &sysctl__children, nbr, name, \ 312 CTLTYPE_NODE|(access), \ 313 NULL, 0, handler, "N", __DESCR(descr)); \ 314 }) 315 316 /* Oid for a string. len can be 0 to indicate '\0' termination. */ 317 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 318 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 319 arg, len, sysctl_handle_string, "A", descr); \ 320 CTASSERT(((access) & CTLTYPE) == 0 || \ 321 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) 322 323 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 324 ({ \ 325 char *__arg = (arg); \ 326 CTASSERT(((access) & CTLTYPE) == 0 || \ 327 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ 328 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 329 __arg, len, sysctl_handle_string, "A", __DESCR(descr)); \ 330 }) 331 332 /* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */ 333 #define SYSCTL_NULL_S8_PTR ((int8_t *)NULL) 334 #define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \ 335 SYSCTL_OID(parent, nbr, name, \ 336 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 337 ptr, val, sysctl_handle_8, "C", descr); \ 338 CTASSERT((((access) & CTLTYPE) == 0 || \ 339 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \ 340 sizeof(int8_t) == sizeof(*(ptr))) 341 342 #define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \ 343 ({ \ 344 int8_t *__ptr = (ptr); \ 345 CTASSERT(((access) & CTLTYPE) == 0 || \ 346 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \ 347 sysctl_add_oid(ctx, parent, nbr, name, \ 348 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 349 __ptr, val, sysctl_handle_8, "C", __DESCR(descr)); \ 350 }) 351 352 /* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */ 353 #define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL) 354 #define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \ 355 SYSCTL_OID(parent, nbr, name, \ 356 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 357 ptr, val, sysctl_handle_8, "CU", descr); \ 358 CTASSERT((((access) & CTLTYPE) == 0 || \ 359 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \ 360 sizeof(uint8_t) == sizeof(*(ptr))) 361 362 #define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \ 363 ({ \ 364 uint8_t *__ptr = (ptr); \ 365 CTASSERT(((access) & CTLTYPE) == 0 || \ 366 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \ 367 sysctl_add_oid(ctx, parent, nbr, name, \ 368 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 369 __ptr, val, sysctl_handle_8, "CU", __DESCR(descr)); \ 370 }) 371 372 /* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */ 373 #define SYSCTL_NULL_S16_PTR ((int16_t *)NULL) 374 #define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \ 375 SYSCTL_OID(parent, nbr, name, \ 376 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 377 ptr, val, sysctl_handle_16, "S", descr); \ 378 CTASSERT((((access) & CTLTYPE) == 0 || \ 379 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \ 380 sizeof(int16_t) == sizeof(*(ptr))) 381 382 #define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \ 383 ({ \ 384 int16_t *__ptr = (ptr); \ 385 CTASSERT(((access) & CTLTYPE) == 0 || \ 386 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \ 387 sysctl_add_oid(ctx, parent, nbr, name, \ 388 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 389 __ptr, val, sysctl_handle_16, "S", __DESCR(descr)); \ 390 }) 391 392 /* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */ 393 #define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL) 394 #define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \ 395 SYSCTL_OID(parent, nbr, name, \ 396 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 397 ptr, val, sysctl_handle_16, "SU", descr); \ 398 CTASSERT((((access) & CTLTYPE) == 0 || \ 399 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \ 400 sizeof(uint16_t) == sizeof(*(ptr))) 401 402 #define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \ 403 ({ \ 404 uint16_t *__ptr = (ptr); \ 405 CTASSERT(((access) & CTLTYPE) == 0 || \ 406 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \ 407 sysctl_add_oid(ctx, parent, nbr, name, \ 408 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 409 __ptr, val, sysctl_handle_16, "SU", __DESCR(descr)); \ 410 }) 411 412 /* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */ 413 #define SYSCTL_NULL_S32_PTR ((int32_t *)NULL) 414 #define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \ 415 SYSCTL_OID(parent, nbr, name, \ 416 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 417 ptr, val, sysctl_handle_32, "I", descr); \ 418 CTASSERT((((access) & CTLTYPE) == 0 || \ 419 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \ 420 sizeof(int32_t) == sizeof(*(ptr))) 421 422 #define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \ 423 ({ \ 424 int32_t *__ptr = (ptr); \ 425 CTASSERT(((access) & CTLTYPE) == 0 || \ 426 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \ 427 sysctl_add_oid(ctx, parent, nbr, name, \ 428 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 429 __ptr, val, sysctl_handle_32, "I", __DESCR(descr)); \ 430 }) 431 432 /* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */ 433 #define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL) 434 #define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \ 435 SYSCTL_OID(parent, nbr, name, \ 436 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 437 ptr, val, sysctl_handle_32, "IU", descr); \ 438 CTASSERT((((access) & CTLTYPE) == 0 || \ 439 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \ 440 sizeof(uint32_t) == sizeof(*(ptr))) 441 442 #define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \ 443 ({ \ 444 uint32_t *__ptr = (ptr); \ 445 CTASSERT(((access) & CTLTYPE) == 0 || \ 446 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \ 447 sysctl_add_oid(ctx, parent, nbr, name, \ 448 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 449 __ptr, val, sysctl_handle_32, "IU", __DESCR(descr)); \ 450 }) 451 452 /* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */ 453 #define SYSCTL_NULL_S64_PTR ((int64_t *)NULL) 454 #define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \ 455 SYSCTL_OID(parent, nbr, name, \ 456 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 457 ptr, val, sysctl_handle_64, "Q", descr); \ 458 CTASSERT((((access) & CTLTYPE) == 0 || \ 459 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 460 sizeof(int64_t) == sizeof(*(ptr))) 461 462 #define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \ 463 ({ \ 464 int64_t *__ptr = (ptr); \ 465 CTASSERT(((access) & CTLTYPE) == 0 || \ 466 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 467 sysctl_add_oid(ctx, parent, nbr, name, \ 468 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 469 __ptr, val, sysctl_handle_64, "Q", __DESCR(descr)); \ 470 }) 471 472 /* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */ 473 #define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL) 474 #define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \ 475 SYSCTL_OID(parent, nbr, name, \ 476 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 477 ptr, val, sysctl_handle_64, "QU", descr); \ 478 CTASSERT((((access) & CTLTYPE) == 0 || \ 479 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 480 sizeof(uint64_t) == sizeof(*(ptr))) 481 482 #define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \ 483 ({ \ 484 uint64_t *__ptr = (ptr); \ 485 CTASSERT(((access) & CTLTYPE) == 0 || \ 486 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 487 sysctl_add_oid(ctx, parent, nbr, name, \ 488 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 489 __ptr, val, sysctl_handle_64, "QU", __DESCR(descr)); \ 490 }) 491 492 /* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */ 493 #define SYSCTL_NULL_INT_PTR ((int *)NULL) 494 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 495 SYSCTL_OID(parent, nbr, name, \ 496 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 497 ptr, val, sysctl_handle_int, "I", descr); \ 498 CTASSERT((((access) & CTLTYPE) == 0 || \ 499 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \ 500 sizeof(int) == sizeof(*(ptr))) 501 502 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 503 ({ \ 504 int *__ptr = (ptr); \ 505 CTASSERT(((access) & CTLTYPE) == 0 || \ 506 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 507 sysctl_add_oid(ctx, parent, nbr, name, \ 508 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 509 __ptr, val, sysctl_handle_int, "I", __DESCR(descr)); \ 510 }) 511 512 /* Oid for an unsigned int. If ptr is NULL, val is returned. */ 513 #define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL) 514 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 515 SYSCTL_OID(parent, nbr, name, \ 516 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 517 ptr, val, sysctl_handle_int, "IU", descr); \ 518 CTASSERT((((access) & CTLTYPE) == 0 || \ 519 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \ 520 sizeof(unsigned) == sizeof(*(ptr))) 521 522 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 523 ({ \ 524 unsigned *__ptr = (ptr); \ 525 CTASSERT(((access) & CTLTYPE) == 0 || \ 526 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \ 527 sysctl_add_oid(ctx, parent, nbr, name, \ 528 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 529 __ptr, val, sysctl_handle_int, "IU", __DESCR(descr)); \ 530 }) 531 532 /* Oid for a long. The pointer must be non NULL. */ 533 #define SYSCTL_NULL_LONG_PTR ((long *)NULL) 534 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 535 SYSCTL_OID(parent, nbr, name, \ 536 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 537 ptr, val, sysctl_handle_long, "L", descr); \ 538 CTASSERT((((access) & CTLTYPE) == 0 || \ 539 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \ 540 sizeof(long) == sizeof(*(ptr))) 541 542 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 543 ({ \ 544 long *__ptr = (ptr); \ 545 CTASSERT(((access) & CTLTYPE) == 0 || \ 546 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \ 547 sysctl_add_oid(ctx, parent, nbr, name, \ 548 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 549 __ptr, 0, sysctl_handle_long, "L", __DESCR(descr)); \ 550 }) 551 552 /* Oid for an unsigned long. The pointer must be non NULL. */ 553 #define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL) 554 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 555 SYSCTL_OID(parent, nbr, name, \ 556 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 557 ptr, val, sysctl_handle_long, "LU", descr); \ 558 CTASSERT((((access) & CTLTYPE) == 0 || \ 559 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \ 560 sizeof(unsigned long) == sizeof(*(ptr))) 561 562 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 563 ({ \ 564 unsigned long *__ptr = (ptr); \ 565 CTASSERT(((access) & CTLTYPE) == 0 || \ 566 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \ 567 sysctl_add_oid(ctx, parent, nbr, name, \ 568 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 569 __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr)); \ 570 }) 571 572 /* Oid for a quad. The pointer must be non NULL. */ 573 #define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL) 574 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ 575 SYSCTL_OID(parent, nbr, name, \ 576 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 577 ptr, val, sysctl_handle_64, "Q", descr); \ 578 CTASSERT((((access) & CTLTYPE) == 0 || \ 579 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 580 sizeof(int64_t) == sizeof(*(ptr))) 581 582 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \ 583 ({ \ 584 int64_t *__ptr = (ptr); \ 585 CTASSERT(((access) & CTLTYPE) == 0 || \ 586 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 587 sysctl_add_oid(ctx, parent, nbr, name, \ 588 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 589 __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr)); \ 590 }) 591 592 #define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL) 593 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \ 594 SYSCTL_OID(parent, nbr, name, \ 595 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 596 ptr, val, sysctl_handle_64, "QU", descr); \ 597 CTASSERT((((access) & CTLTYPE) == 0 || \ 598 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 599 sizeof(uint64_t) == sizeof(*(ptr))) 600 601 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \ 602 ({ \ 603 uint64_t *__ptr = (ptr); \ 604 CTASSERT(((access) & CTLTYPE) == 0 || \ 605 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 606 sysctl_add_oid(ctx, parent, nbr, name, \ 607 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 608 __ptr, 0, sysctl_handle_64, "QU", __DESCR(descr)); \ 609 }) 610 611 /* Oid for a CPU dependent variable */ 612 #define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \ 613 ({ \ 614 struct sysctl_oid *__ret; \ 615 CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \ 616 sizeof(unsigned) == sizeof(*(ptr))) && \ 617 ((access) & CTLTYPE) == 0); \ 618 if (sizeof(uint64_t) == sizeof(*(ptr))) { \ 619 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 620 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 621 (ptr), 0, sysctl_handle_64, "QU", \ 622 __DESCR(descr)); \ 623 } else { \ 624 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 625 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 626 (ptr), 0, sysctl_handle_int, "IU", \ 627 __DESCR(descr)); \ 628 } \ 629 __ret; \ 630 }) 631 632 /* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */ 633 #define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \ 634 SYSCTL_OID(parent, nbr, name, \ 635 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 636 (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \ 637 CTASSERT((((access) & CTLTYPE) == 0 || \ 638 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 639 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 640 sizeof(uint64_t) == sizeof(**(ptr))) 641 642 #define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \ 643 ({ \ 644 counter_u64_t *__ptr = (ptr); \ 645 CTASSERT(((access) & CTLTYPE) == 0 || \ 646 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 647 sysctl_add_oid(ctx, parent, nbr, name, \ 648 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 649 __ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr)); \ 650 }) 651 652 /* Oid for an array of counter(9)s. The pointer and length must be non zero. */ 653 #define SYSCTL_COUNTER_U64_ARRAY(parent, nbr, name, access, ptr, len, descr) \ 654 SYSCTL_OID(parent, nbr, name, \ 655 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 656 (ptr), (len), sysctl_handle_counter_u64_array, "S", descr); \ 657 CTASSERT((((access) & CTLTYPE) == 0 || \ 658 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) && \ 659 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 660 sizeof(uint64_t) == sizeof(**(ptr))) 661 662 #define SYSCTL_ADD_COUNTER_U64_ARRAY(ctx, parent, nbr, name, access, \ 663 ptr, len, descr) \ 664 ({ \ 665 counter_u64_t *__ptr = (ptr); \ 666 CTASSERT(((access) & CTLTYPE) == 0 || \ 667 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 668 sysctl_add_oid(ctx, parent, nbr, name, \ 669 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 670 __ptr, len, sysctl_handle_counter_u64_array, "S", \ 671 __DESCR(descr)); \ 672 }) 673 674 /* Oid for an opaque object. Specified by a pointer and a length. */ 675 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 676 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 677 ptr, len, sysctl_handle_opaque, fmt, descr); \ 678 CTASSERT(((access) & CTLTYPE) == 0 || \ 679 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 680 681 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \ 682 ({ \ 683 CTASSERT(((access) & CTLTYPE) == 0 || \ 684 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 685 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 686 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr)); \ 687 }) 688 689 /* Oid for a struct. Specified by a pointer and a type. */ 690 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 691 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 692 ptr, sizeof(struct type), sysctl_handle_opaque, \ 693 "S," #type, descr); \ 694 CTASSERT(((access) & CTLTYPE) == 0 || \ 695 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 696 697 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 698 ({ \ 699 CTASSERT(((access) & CTLTYPE) == 0 || \ 700 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 701 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 702 (ptr), sizeof(struct type), \ 703 sysctl_handle_opaque, "S," #type, __DESCR(descr)); \ 704 }) 705 706 /* Oid for a procedure. Specified by a pointer and an arg. */ 707 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 708 SYSCTL_OID(parent, nbr, name, (access), \ 709 ptr, arg, handler, fmt, descr); \ 710 CTASSERT(((access) & CTLTYPE) != 0) 711 712 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 713 ({ \ 714 CTASSERT(((access) & CTLTYPE) != 0); \ 715 sysctl_add_oid(ctx, parent, nbr, name, (access), \ 716 (ptr), (arg), (handler), (fmt), __DESCR(descr)); \ 717 }) 718 719 /* Oid to handle limits on uma(9) zone specified by pointer. */ 720 #define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \ 721 SYSCTL_OID(parent, nbr, name, \ 722 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 723 (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \ 724 CTASSERT(((access) & CTLTYPE) == 0 || \ 725 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 726 727 #define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \ 728 ({ \ 729 uma_zone_t __ptr = (ptr); \ 730 CTASSERT(((access) & CTLTYPE) == 0 || \ 731 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 732 sysctl_add_oid(ctx, parent, nbr, name, \ 733 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 734 __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr)); \ 735 }) 736 737 /* Oid to obtain current use of uma(9) zone specified by pointer. */ 738 #define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \ 739 SYSCTL_OID(parent, nbr, name, \ 740 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 741 (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \ 742 CTASSERT(((access) & CTLTYPE) == 0 || \ 743 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 744 745 #define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \ 746 ({ \ 747 uma_zone_t __ptr = (ptr); \ 748 CTASSERT(((access) & CTLTYPE) == 0 || \ 749 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 750 sysctl_add_oid(ctx, parent, nbr, name, \ 751 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 752 __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr)); \ 753 }) 754 755 /* 756 * A macro to generate a read-only sysctl to indicate the presence of optional 757 * kernel features. 758 */ 759 #define FEATURE(name, desc) \ 760 SYSCTL_INT(_kern_features, OID_AUTO, name, CTLFLAG_RD | CTLFLAG_CAPRD, \ 761 SYSCTL_NULL_INT_PTR, 1, desc) 762 763 #endif /* _KERNEL */ 764 765 /* 766 * Top-level identifiers 767 */ 768 #define CTL_UNSPEC 0 /* unused */ 769 #define CTL_KERN 1 /* "high kernel": proc, limits */ 770 #define CTL_VM 2 /* virtual memory */ 771 #define CTL_VFS 3 /* filesystem, mount type is next */ 772 #define CTL_NET 4 /* network, see socket.h */ 773 #define CTL_DEBUG 5 /* debugging parameters */ 774 #define CTL_HW 6 /* generic cpu/io */ 775 #define CTL_MACHDEP 7 /* machine dependent */ 776 #define CTL_USER 8 /* user-level */ 777 #define CTL_P1003_1B 9 /* POSIX 1003.1B */ 778 779 /* 780 * CTL_KERN identifiers 781 */ 782 #define KERN_OSTYPE 1 /* string: system version */ 783 #define KERN_OSRELEASE 2 /* string: system release */ 784 #define KERN_OSREV 3 /* int: system revision */ 785 #define KERN_VERSION 4 /* string: compile time info */ 786 #define KERN_MAXVNODES 5 /* int: max vnodes */ 787 #define KERN_MAXPROC 6 /* int: max processes */ 788 #define KERN_MAXFILES 7 /* int: max open files */ 789 #define KERN_ARGMAX 8 /* int: max arguments to exec */ 790 #define KERN_SECURELVL 9 /* int: system security level */ 791 #define KERN_HOSTNAME 10 /* string: hostname */ 792 #define KERN_HOSTID 11 /* int: host identifier */ 793 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 794 #define KERN_VNODE 13 /* struct: vnode structures */ 795 #define KERN_PROC 14 /* struct: process entries */ 796 #define KERN_FILE 15 /* struct: file entries */ 797 #define KERN_PROF 16 /* node: kernel profiling info */ 798 #define KERN_POSIX1 17 /* int: POSIX.1 version */ 799 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 800 #define KERN_JOB_CONTROL 19 /* int: is job control available */ 801 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 802 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 803 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 804 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 805 #define KERN_OSRELDATE 24 /* int: kernel release date */ 806 #define KERN_NTP_PLL 25 /* node: NTP PLL control */ 807 #define KERN_BOOTFILE 26 /* string: name of booted kernel */ 808 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 809 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 810 #define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */ 811 #define KERN_IPC 30 /* node: anything related to IPC */ 812 #define KERN_DUMMY 31 /* unused */ 813 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 814 #define KERN_USRSTACK 33 /* int: address of USRSTACK */ 815 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 816 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 817 #define KERN_HOSTUUID 36 /* string: host UUID identifier */ 818 #define KERN_ARND 37 /* int: from arc4rand() */ 819 /* 820 * KERN_PROC subtypes 821 */ 822 #define KERN_PROC_ALL 0 /* everything */ 823 #define KERN_PROC_PID 1 /* by process id */ 824 #define KERN_PROC_PGRP 2 /* by process group id */ 825 #define KERN_PROC_SESSION 3 /* by session of pid */ 826 #define KERN_PROC_TTY 4 /* by controlling tty */ 827 #define KERN_PROC_UID 5 /* by effective uid */ 828 #define KERN_PROC_RUID 6 /* by real uid */ 829 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 830 #define KERN_PROC_PROC 8 /* only return procs */ 831 #define KERN_PROC_SV_NAME 9 /* get syscall vector name */ 832 #define KERN_PROC_RGID 10 /* by real group id */ 833 #define KERN_PROC_GID 11 /* by effective group id */ 834 #define KERN_PROC_PATHNAME 12 /* path to executable */ 835 #define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */ 836 #define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */ 837 #define KERN_PROC_KSTACK 15 /* Kernel stacks for process */ 838 #define KERN_PROC_INC_THREAD 0x10 /* 839 * modifier for pid, pgrp, tty, 840 * uid, ruid, gid, rgid and proc 841 * This effectively uses 16-31 842 */ 843 #define KERN_PROC_VMMAP 32 /* VM map entries for process */ 844 #define KERN_PROC_FILEDESC 33 /* File descriptors for process */ 845 #define KERN_PROC_GROUPS 34 /* process groups */ 846 #define KERN_PROC_ENV 35 /* get environment */ 847 #define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */ 848 #define KERN_PROC_RLIMIT 37 /* process resource limits */ 849 #define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */ 850 #define KERN_PROC_UMASK 39 /* process umask */ 851 #define KERN_PROC_OSREL 40 /* osreldate for process binary */ 852 #define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */ 853 #define KERN_PROC_CWD 42 /* process current working directory */ 854 #define KERN_PROC_NFDS 43 /* number of open file descriptors */ 855 856 /* 857 * KERN_IPC identifiers 858 */ 859 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 860 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 861 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 862 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 863 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 864 #define KIPC_MAX_HDR 6 /* int: max total length of headers */ 865 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 866 867 /* 868 * CTL_HW identifiers 869 */ 870 #define HW_MACHINE 1 /* string: machine class */ 871 #define HW_MODEL 2 /* string: specific machine model */ 872 #define HW_NCPU 3 /* int: number of cpus */ 873 #define HW_BYTEORDER 4 /* int: machine byte order */ 874 #define HW_PHYSMEM 5 /* int: total memory */ 875 #define HW_USERMEM 6 /* int: non-kernel memory */ 876 #define HW_PAGESIZE 7 /* int: software page size */ 877 #define HW_DISKNAMES 8 /* strings: disk drive names */ 878 #define HW_DISKSTATS 9 /* struct: diskstats[] */ 879 #define HW_FLOATINGPT 10 /* int: has HW floating point? */ 880 #define HW_MACHINE_ARCH 11 /* string: machine architecture */ 881 #define HW_REALMEM 12 /* int: 'real' memory */ 882 883 /* 884 * CTL_USER definitions 885 */ 886 #define USER_CS_PATH 1 /* string: _CS_PATH */ 887 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 888 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 889 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 890 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 891 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 892 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 893 #define USER_LINE_MAX 8 /* int: LINE_MAX */ 894 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 895 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 896 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 897 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 898 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 899 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 900 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 901 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 902 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 903 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 904 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 905 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 906 907 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 908 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 909 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 910 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 911 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 912 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 913 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 914 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 915 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 916 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 917 #define CTL_P1003_1B_FSYNC 11 /* boolean */ 918 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 919 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 920 #define CTL_P1003_1B_TIMERS 14 /* boolean */ 921 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 922 #define CTL_P1003_1B_AIO_MAX 16 /* int */ 923 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 924 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 925 #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 926 #define CTL_P1003_1B_PAGESIZE 20 /* int */ 927 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 928 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 929 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 930 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 931 #define CTL_P1003_1B_TIMER_MAX 25 /* int */ 932 933 #define CTL_P1003_1B_MAXID 26 934 935 #ifdef _KERNEL 936 937 /* 938 * Declare some common oids. 939 */ 940 extern struct sysctl_oid_list sysctl__children; 941 SYSCTL_DECL(_kern); 942 SYSCTL_DECL(_kern_features); 943 SYSCTL_DECL(_kern_ipc); 944 SYSCTL_DECL(_kern_proc); 945 SYSCTL_DECL(_kern_sched); 946 SYSCTL_DECL(_kern_sched_stats); 947 SYSCTL_DECL(_sysctl); 948 SYSCTL_DECL(_vm); 949 SYSCTL_DECL(_vm_stats); 950 SYSCTL_DECL(_vm_stats_misc); 951 SYSCTL_DECL(_vfs); 952 SYSCTL_DECL(_net); 953 SYSCTL_DECL(_debug); 954 SYSCTL_DECL(_debug_sizeof); 955 SYSCTL_DECL(_dev); 956 SYSCTL_DECL(_hw); 957 SYSCTL_DECL(_hw_bus); 958 SYSCTL_DECL(_hw_bus_devices); 959 SYSCTL_DECL(_hw_bus_info); 960 SYSCTL_DECL(_machdep); 961 SYSCTL_DECL(_user); 962 SYSCTL_DECL(_compat); 963 SYSCTL_DECL(_regression); 964 SYSCTL_DECL(_security); 965 SYSCTL_DECL(_security_bsd); 966 967 extern char machine[]; 968 extern char osrelease[]; 969 extern char ostype[]; 970 extern char kern_ident[]; 971 972 /* Dynamic oid handling */ 973 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 974 struct sysctl_oid_list *parent, int nbr, const char *name, int kind, 975 void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS), 976 const char *fmt, const char *descr); 977 int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del, 978 int recurse); 979 void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name); 980 int sysctl_move_oid(struct sysctl_oid *oidp, 981 struct sysctl_oid_list *parent); 982 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 983 int sysctl_ctx_init(struct sysctl_ctx_list *clist); 984 int sysctl_ctx_free(struct sysctl_ctx_list *clist); 985 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 986 struct sysctl_oid *oidp); 987 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 988 struct sysctl_oid *oidp); 989 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 990 struct sysctl_oid *oidp); 991 992 int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, 993 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 994 int flags); 995 int kernel_sysctlbyname(struct thread *td, char *name, void *old, 996 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 997 int flags); 998 int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, 999 size_t *oldlenp, int inkernel, void *new, size_t newlen, 1000 size_t *retval, int flags); 1001 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 1002 int *nindx, struct sysctl_req *req); 1003 void sysctl_wlock(void); 1004 void sysctl_wunlock(void); 1005 int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); 1006 1007 struct sbuf; 1008 struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int, 1009 struct sysctl_req *); 1010 #else /* !_KERNEL */ 1011 #include <sys/cdefs.h> 1012 1013 __BEGIN_DECLS 1014 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); 1015 int sysctlbyname(const char *, void *, size_t *, const void *, size_t); 1016 int sysctlnametomib(const char *, int *, size_t *); 1017 __END_DECLS 1018 #endif /* _KERNEL */ 1019 1020 #endif /* !_SYS_SYSCTL_H_ */ 1021