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FreeBSD/Linux Kernel Cross Reference
sys/sys/sysctl.h
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1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Mike Karels at Berkeley Software Design, Inc. 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 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93 35 * $FreeBSD$ 36 */ 37 38 #ifndef _SYS_SYSCTL_H_ 39 #define _SYS_SYSCTL_H_ 40 41 #ifdef _KERNEL 42 #include <sys/queue.h> 43 #endif 44 45 struct thread; 46 /* 47 * Definitions for sysctl call. The sysctl call uses a hierarchical name 48 * for objects that can be examined or modified. The name is expressed as 49 * a sequence of integers. Like a file path name, the meaning of each 50 * component depends on its place in the hierarchy. The top-level and kern 51 * identifiers are defined here, and other identifiers are defined in the 52 * respective subsystem header files. 53 */ 54 55 #define CTL_MAXNAME 24 /* largest number of components supported */ 56 57 /* 58 * Each subsystem defined by sysctl defines a list of variables 59 * for that subsystem. Each name is either a node with further 60 * levels defined below it, or it is a leaf of some particular 61 * type given below. Each sysctl level defines a set of name/type 62 * pairs to be used by sysctl(8) in manipulating the subsystem. 63 */ 64 struct ctlname { 65 char *ctl_name; /* subsystem name */ 66 int ctl_type; /* type of name */ 67 }; 68 69 #define CTLTYPE 0xf /* mask for the type */ 70 #define CTLTYPE_NODE 1 /* name is a node */ 71 #define CTLTYPE_INT 2 /* name describes an integer */ 72 #define CTLTYPE_STRING 3 /* name describes a string */ 73 #define CTLTYPE_S64 4 /* name describes a signed 64-bit number */ 74 #define CTLTYPE_OPAQUE 5 /* name describes a structure */ 75 #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ 76 #define CTLTYPE_UINT 6 /* name describes an unsigned integer */ 77 #define CTLTYPE_LONG 7 /* name describes a long */ 78 #define CTLTYPE_ULONG 8 /* name describes an unsigned long */ 79 #define CTLTYPE_U64 9 /* name describes an unsigned 64-bit number */ 80 #define CTLTYPE_U8 0xa /* name describes an unsigned 8-bit number */ 81 #define CTLTYPE_U16 0xb /* name describes an unsigned 16-bit number */ 82 #define CTLTYPE_S8 0xc /* name describes a signed 8-bit number */ 83 #define CTLTYPE_S16 0xd /* name describes a signed 16-bit number */ 84 #define CTLTYPE_S32 0xe /* name describes a signed 32-bit number */ 85 #define CTLTYPE_U32 0xf /* name describes an unsigned 32-bit number */ 86 87 #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ 88 #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ 89 #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) 90 #define CTLFLAG_DORMANT 0x20000000 /* This sysctl is not active yet */ 91 #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ 92 #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ 93 #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */ 94 #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */ 95 #define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */ 96 #define CTLMASK_SECURE 0x00F00000 /* Secure level */ 97 #define CTLFLAG_TUN 0x00080000 /* Default value is loaded from getenv() */ 98 #define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN) 99 #define CTLFLAG_RWTUN (CTLFLAG_RW|CTLFLAG_TUN) 100 #define CTLFLAG_MPSAFE 0x00040000 /* Handler is MP safe */ 101 #define CTLFLAG_VNET 0x00020000 /* Prisons with vnet can fiddle */ 102 #define CTLFLAG_DYING 0x00010000 /* Oid is being removed */ 103 #define CTLFLAG_CAPRD 0x00008000 /* Can be read in capability mode */ 104 #define CTLFLAG_CAPWR 0x00004000 /* Can be written in capability mode */ 105 #define CTLFLAG_STATS 0x00002000 /* Statistics, not a tuneable */ 106 #define CTLFLAG_NOFETCH 0x00001000 /* Don't fetch tunable from getenv() */ 107 #define CTLFLAG_CAPRW (CTLFLAG_CAPRD|CTLFLAG_CAPWR) 108 109 /* 110 * Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1. 111 * 112 * Secure when the securelevel is raised to at least N. 113 */ 114 #define CTLSHIFT_SECURE 20 115 #define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE)) 116 #define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE)) 117 #define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE)) 118 119 /* 120 * USE THIS instead of a hardwired number from the categories below 121 * to get dynamically assigned sysctl entries using the linker-set 122 * technology. This is the way nearly all new sysctl variables should 123 * be implemented. 124 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 125 */ 126 #define OID_AUTO (-1) 127 128 /* 129 * The starting number for dynamically-assigned entries. WARNING! 130 * ALL static sysctl entries should have numbers LESS than this! 131 */ 132 #define CTL_AUTO_START 0x100 133 134 #ifdef _KERNEL 135 #include <sys/linker_set.h> 136 137 #ifdef KLD_MODULE 138 /* XXX allow overspecification of type in external kernel modules */ 139 #define SYSCTL_CT_ASSERT_MASK CTLTYPE 140 #else 141 #define SYSCTL_CT_ASSERT_MASK 0 142 #endif 143 144 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \ 145 intmax_t arg2, struct sysctl_req *req 146 147 /* definitions for sysctl_req 'lock' member */ 148 #define REQ_UNWIRED 1 149 #define REQ_WIRED 2 150 151 /* definitions for sysctl_req 'flags' member */ 152 #if defined(__aarch64__) || defined(__amd64__) || defined(__powerpc64__) ||\ 153 (defined(__mips__) && defined(__mips_n64)) 154 #define SCTL_MASK32 1 /* 32 bit emulation */ 155 #endif 156 157 /* 158 * This describes the access space for a sysctl request. This is needed 159 * so that we can use the interface from the kernel or from user-space. 160 */ 161 struct sysctl_req { 162 struct thread *td; /* used for access checking */ 163 int lock; /* wiring state */ 164 void *oldptr; 165 size_t oldlen; 166 size_t oldidx; 167 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 168 void *newptr; 169 size_t newlen; 170 size_t newidx; 171 int (*newfunc)(struct sysctl_req *, void *, size_t); 172 size_t validlen; 173 int flags; 174 }; 175 176 SLIST_HEAD(sysctl_oid_list, sysctl_oid); 177 178 /* 179 * This describes one "oid" in the MIB tree. Potentially more nodes can 180 * be hidden behind it, expanded by the handler. 181 */ 182 struct sysctl_oid { 183 struct sysctl_oid_list oid_children; 184 struct sysctl_oid_list *oid_parent; 185 SLIST_ENTRY(sysctl_oid) oid_link; 186 int oid_number; 187 u_int oid_kind; 188 void *oid_arg1; 189 intmax_t oid_arg2; 190 const char *oid_name; 191 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 192 const char *oid_fmt; 193 int oid_refcnt; 194 u_int oid_running; 195 const char *oid_descr; 196 const char *oid_label; 197 }; 198 199 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 200 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 201 #define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1) 202 203 int sysctl_handle_bool(SYSCTL_HANDLER_ARGS); 204 int sysctl_handle_8(SYSCTL_HANDLER_ARGS); 205 int sysctl_handle_16(SYSCTL_HANDLER_ARGS); 206 int sysctl_handle_32(SYSCTL_HANDLER_ARGS); 207 int sysctl_handle_64(SYSCTL_HANDLER_ARGS); 208 int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 209 int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS); 210 int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 211 int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 212 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 213 int sysctl_handle_counter_u64(SYSCTL_HANDLER_ARGS); 214 int sysctl_handle_counter_u64_array(SYSCTL_HANDLER_ARGS); 215 216 int sysctl_handle_uma_zone_max(SYSCTL_HANDLER_ARGS); 217 int sysctl_handle_uma_zone_cur(SYSCTL_HANDLER_ARGS); 218 219 int sysctl_sec_to_timeval(SYSCTL_HANDLER_ARGS); 220 221 int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS); 222 int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS); 223 int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS); 224 225 /* 226 * These functions are used to add/remove an oid from the mib. 227 */ 228 void sysctl_register_oid(struct sysctl_oid *oidp); 229 void sysctl_register_disabled_oid(struct sysctl_oid *oidp); 230 void sysctl_enable_oid(struct sysctl_oid *oidp); 231 void sysctl_unregister_oid(struct sysctl_oid *oidp); 232 233 /* Declare a static oid to allow child oids to be added to it. */ 234 #define SYSCTL_DECL(name) \ 235 extern struct sysctl_oid sysctl__##name 236 237 /* Hide these in macros. */ 238 #define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children) 239 #define SYSCTL_PARENT(oid_ptr) \ 240 (((oid_ptr)->oid_parent != &sysctl__children) ? \ 241 __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \ 242 oid_children) : (struct sysctl_oid *)NULL) 243 #define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children) 244 245 /* === Structs and macros related to context handling. === */ 246 247 /* All dynamically created sysctls can be tracked in a context list. */ 248 struct sysctl_ctx_entry { 249 struct sysctl_oid *entry; 250 TAILQ_ENTRY(sysctl_ctx_entry) link; 251 }; 252 253 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 254 255 #define SYSCTL_NODE_CHILDREN(parent, name) \ 256 sysctl__##parent##_##name.oid_children 257 258 #ifndef NO_SYSCTL_DESCR 259 #define __DESCR(d) d 260 #else 261 #define __DESCR(d) "" 262 #endif 263 264 /* This macro is only for internal use */ 265 #define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr, label) \ 266 struct sysctl_oid id = { \ 267 .oid_parent = (parent_child_head), \ 268 .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \ 269 .oid_number = (nbr), \ 270 .oid_kind = (kind), \ 271 .oid_arg1 = (a1), \ 272 .oid_arg2 = (a2), \ 273 .oid_name = (name), \ 274 .oid_handler = (handler), \ 275 .oid_fmt = (fmt), \ 276 .oid_descr = __DESCR(descr), \ 277 .oid_label = (label), \ 278 }; \ 279 DATA_SET(sysctl_set, id) 280 281 /* This constructs a static "raw" MIB oid. */ 282 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 283 SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, \ 284 handler, fmt, descr, NULL) 285 286 #define SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \ 287 static SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 288 SYSCTL_CHILDREN(&sysctl__##parent), \ 289 nbr, #name, kind, a1, a2, handler, fmt, descr, label) 290 291 /* This constructs a global "raw" MIB oid. */ 292 #define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \ 293 SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 294 SYSCTL_CHILDREN(&sysctl__##parent), \ 295 nbr, #name, kind, a1, a2, handler, fmt, descr, label) 296 297 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 298 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr), NULL) 299 300 /* This constructs a root node from which other nodes can hang. */ 301 #define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \ 302 SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \ 303 nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \ 304 handler, "N", descr, NULL); \ 305 CTASSERT(((access) & CTLTYPE) == 0 || \ 306 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 307 308 /* This constructs a node from which other oids can hang. */ 309 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 310 SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, NULL) 311 312 #define SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, label) \ 313 SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \ 314 NULL, 0, handler, "N", descr, label); \ 315 CTASSERT(((access) & CTLTYPE) == 0 || \ 316 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 317 318 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 319 SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, \ 320 handler, descr, NULL) 321 322 #define SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, handler, descr, label) \ 323 ({ \ 324 CTASSERT(((access) & CTLTYPE) == 0 || \ 325 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 326 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 327 NULL, 0, handler, "N", __DESCR(descr), label); \ 328 }) 329 330 #define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \ 331 ({ \ 332 CTASSERT(((access) & CTLTYPE) == 0 || \ 333 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 334 sysctl_add_oid(ctx, &sysctl__children, nbr, name, \ 335 CTLTYPE_NODE|(access), \ 336 NULL, 0, handler, "N", __DESCR(descr), NULL); \ 337 }) 338 339 /* Oid for a string. len can be 0 to indicate '\0' termination. */ 340 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 341 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 342 arg, len, sysctl_handle_string, "A", descr); \ 343 CTASSERT(((access) & CTLTYPE) == 0 || \ 344 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) 345 346 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 347 ({ \ 348 char *__arg = (arg); \ 349 CTASSERT(((access) & CTLTYPE) == 0 || \ 350 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ 351 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 352 __arg, len, sysctl_handle_string, "A", __DESCR(descr), \ 353 NULL); \ 354 }) 355 356 /* Oid for a constant '\0' terminated string. */ 357 #define SYSCTL_CONST_STRING(parent, nbr, name, access, arg, descr) \ 358 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 359 __DECONST(char *, arg), 0, sysctl_handle_string, "A", descr); \ 360 CTASSERT(!(access & CTLFLAG_WR)); \ 361 CTASSERT(((access) & CTLTYPE) == 0 || \ 362 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) 363 364 #define SYSCTL_ADD_CONST_STRING(ctx, parent, nbr, name, access, arg, descr) \ 365 ({ \ 366 char *__arg = __DECONST(char *, arg); \ 367 CTASSERT(!(access & CTLFLAG_WR)); \ 368 CTASSERT(((access) & CTLTYPE) == 0 || \ 369 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ 370 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 371 __arg, 0, sysctl_handle_string, "A", __DESCR(descr), \ 372 NULL); \ 373 }) 374 375 /* Oid for a bool. If ptr is NULL, val is returned. */ 376 #define SYSCTL_NULL_BOOL_PTR ((bool *)NULL) 377 #define SYSCTL_BOOL(parent, nbr, name, access, ptr, val, descr) \ 378 SYSCTL_OID(parent, nbr, name, \ 379 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 380 ptr, val, sysctl_handle_bool, "CU", descr); \ 381 CTASSERT(((access) & CTLTYPE) == 0 && \ 382 sizeof(bool) == sizeof(*(ptr))) 383 384 #define SYSCTL_ADD_BOOL(ctx, parent, nbr, name, access, ptr, val, descr) \ 385 ({ \ 386 bool *__ptr = (ptr); \ 387 CTASSERT(((access) & CTLTYPE) == 0); \ 388 sysctl_add_oid(ctx, parent, nbr, name, \ 389 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 390 __ptr, val, sysctl_handle_bool, "CU", __DESCR(descr), \ 391 NULL); \ 392 }) 393 394 /* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */ 395 #define SYSCTL_NULL_S8_PTR ((int8_t *)NULL) 396 #define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \ 397 SYSCTL_OID(parent, nbr, name, \ 398 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 399 ptr, val, sysctl_handle_8, "C", descr); \ 400 CTASSERT((((access) & CTLTYPE) == 0 || \ 401 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \ 402 sizeof(int8_t) == sizeof(*(ptr))) 403 404 #define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \ 405 ({ \ 406 int8_t *__ptr = (ptr); \ 407 CTASSERT(((access) & CTLTYPE) == 0 || \ 408 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \ 409 sysctl_add_oid(ctx, parent, nbr, name, \ 410 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 411 __ptr, val, sysctl_handle_8, "C", __DESCR(descr), NULL); \ 412 }) 413 414 /* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */ 415 #define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL) 416 #define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \ 417 SYSCTL_OID(parent, nbr, name, \ 418 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 419 ptr, val, sysctl_handle_8, "CU", descr); \ 420 CTASSERT((((access) & CTLTYPE) == 0 || \ 421 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \ 422 sizeof(uint8_t) == sizeof(*(ptr))) 423 424 #define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \ 425 ({ \ 426 uint8_t *__ptr = (ptr); \ 427 CTASSERT(((access) & CTLTYPE) == 0 || \ 428 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \ 429 sysctl_add_oid(ctx, parent, nbr, name, \ 430 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 431 __ptr, val, sysctl_handle_8, "CU", __DESCR(descr), NULL); \ 432 }) 433 434 /* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */ 435 #define SYSCTL_NULL_S16_PTR ((int16_t *)NULL) 436 #define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \ 437 SYSCTL_OID(parent, nbr, name, \ 438 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 439 ptr, val, sysctl_handle_16, "S", descr); \ 440 CTASSERT((((access) & CTLTYPE) == 0 || \ 441 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \ 442 sizeof(int16_t) == sizeof(*(ptr))) 443 444 #define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \ 445 ({ \ 446 int16_t *__ptr = (ptr); \ 447 CTASSERT(((access) & CTLTYPE) == 0 || \ 448 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \ 449 sysctl_add_oid(ctx, parent, nbr, name, \ 450 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 451 __ptr, val, sysctl_handle_16, "S", __DESCR(descr), NULL); \ 452 }) 453 454 /* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */ 455 #define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL) 456 #define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \ 457 SYSCTL_OID(parent, nbr, name, \ 458 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 459 ptr, val, sysctl_handle_16, "SU", descr); \ 460 CTASSERT((((access) & CTLTYPE) == 0 || \ 461 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \ 462 sizeof(uint16_t) == sizeof(*(ptr))) 463 464 #define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \ 465 ({ \ 466 uint16_t *__ptr = (ptr); \ 467 CTASSERT(((access) & CTLTYPE) == 0 || \ 468 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \ 469 sysctl_add_oid(ctx, parent, nbr, name, \ 470 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 471 __ptr, val, sysctl_handle_16, "SU", __DESCR(descr), NULL); \ 472 }) 473 474 /* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */ 475 #define SYSCTL_NULL_S32_PTR ((int32_t *)NULL) 476 #define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \ 477 SYSCTL_OID(parent, nbr, name, \ 478 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 479 ptr, val, sysctl_handle_32, "I", descr); \ 480 CTASSERT((((access) & CTLTYPE) == 0 || \ 481 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \ 482 sizeof(int32_t) == sizeof(*(ptr))) 483 484 #define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \ 485 ({ \ 486 int32_t *__ptr = (ptr); \ 487 CTASSERT(((access) & CTLTYPE) == 0 || \ 488 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \ 489 sysctl_add_oid(ctx, parent, nbr, name, \ 490 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 491 __ptr, val, sysctl_handle_32, "I", __DESCR(descr), NULL); \ 492 }) 493 494 /* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */ 495 #define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL) 496 #define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \ 497 SYSCTL_OID(parent, nbr, name, \ 498 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 499 ptr, val, sysctl_handle_32, "IU", descr); \ 500 CTASSERT((((access) & CTLTYPE) == 0 || \ 501 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \ 502 sizeof(uint32_t) == sizeof(*(ptr))) 503 504 #define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \ 505 ({ \ 506 uint32_t *__ptr = (ptr); \ 507 CTASSERT(((access) & CTLTYPE) == 0 || \ 508 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \ 509 sysctl_add_oid(ctx, parent, nbr, name, \ 510 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 511 __ptr, val, sysctl_handle_32, "IU", __DESCR(descr), NULL); \ 512 }) 513 514 /* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */ 515 #define SYSCTL_NULL_S64_PTR ((int64_t *)NULL) 516 #define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \ 517 SYSCTL_OID(parent, nbr, name, \ 518 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 519 ptr, val, sysctl_handle_64, "Q", descr); \ 520 CTASSERT((((access) & CTLTYPE) == 0 || \ 521 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 522 sizeof(int64_t) == sizeof(*(ptr))) 523 524 #define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \ 525 ({ \ 526 int64_t *__ptr = (ptr); \ 527 CTASSERT(((access) & CTLTYPE) == 0 || \ 528 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 529 sysctl_add_oid(ctx, parent, nbr, name, \ 530 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 531 __ptr, val, sysctl_handle_64, "Q", __DESCR(descr), NULL); \ 532 }) 533 534 /* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */ 535 #define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL) 536 #define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \ 537 SYSCTL_OID(parent, nbr, name, \ 538 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 539 ptr, val, sysctl_handle_64, "QU", descr); \ 540 CTASSERT((((access) & CTLTYPE) == 0 || \ 541 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 542 sizeof(uint64_t) == sizeof(*(ptr))) 543 544 #define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \ 545 ({ \ 546 uint64_t *__ptr = (ptr); \ 547 CTASSERT(((access) & CTLTYPE) == 0 || \ 548 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 549 sysctl_add_oid(ctx, parent, nbr, name, \ 550 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 551 __ptr, val, sysctl_handle_64, "QU", __DESCR(descr), NULL); \ 552 }) 553 554 /* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */ 555 #define SYSCTL_NULL_INT_PTR ((int *)NULL) 556 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 557 SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, NULL) 558 559 #define SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, label) \ 560 SYSCTL_OID_WITH_LABEL(parent, nbr, name, \ 561 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 562 ptr, val, sysctl_handle_int, "I", descr, label); \ 563 CTASSERT((((access) & CTLTYPE) == 0 || \ 564 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \ 565 sizeof(int) == sizeof(*(ptr))) 566 567 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 568 ({ \ 569 int *__ptr = (ptr); \ 570 CTASSERT(((access) & CTLTYPE) == 0 || \ 571 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 572 sysctl_add_oid(ctx, parent, nbr, name, \ 573 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 574 __ptr, val, sysctl_handle_int, "I", __DESCR(descr), NULL); \ 575 }) 576 577 /* Oid for an unsigned int. If ptr is NULL, val is returned. */ 578 #define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL) 579 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 580 SYSCTL_OID(parent, nbr, name, \ 581 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 582 ptr, val, sysctl_handle_int, "IU", descr); \ 583 CTASSERT((((access) & CTLTYPE) == 0 || \ 584 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \ 585 sizeof(unsigned) == sizeof(*(ptr))) 586 587 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 588 ({ \ 589 unsigned *__ptr = (ptr); \ 590 CTASSERT(((access) & CTLTYPE) == 0 || \ 591 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \ 592 sysctl_add_oid(ctx, parent, nbr, name, \ 593 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 594 __ptr, val, sysctl_handle_int, "IU", __DESCR(descr), NULL); \ 595 }) 596 597 /* Oid for a long. The pointer must be non NULL. */ 598 #define SYSCTL_NULL_LONG_PTR ((long *)NULL) 599 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 600 SYSCTL_OID(parent, nbr, name, \ 601 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 602 ptr, val, sysctl_handle_long, "L", descr); \ 603 CTASSERT((((access) & CTLTYPE) == 0 || \ 604 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \ 605 sizeof(long) == sizeof(*(ptr))) 606 607 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 608 ({ \ 609 long *__ptr = (ptr); \ 610 CTASSERT(((access) & CTLTYPE) == 0 || \ 611 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \ 612 sysctl_add_oid(ctx, parent, nbr, name, \ 613 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 614 __ptr, 0, sysctl_handle_long, "L", __DESCR(descr), NULL); \ 615 }) 616 617 /* Oid for an unsigned long. The pointer must be non NULL. */ 618 #define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL) 619 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 620 SYSCTL_OID(parent, nbr, name, \ 621 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 622 ptr, val, sysctl_handle_long, "LU", descr); \ 623 CTASSERT((((access) & CTLTYPE) == 0 || \ 624 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \ 625 sizeof(unsigned long) == sizeof(*(ptr))) 626 627 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 628 ({ \ 629 unsigned long *__ptr = (ptr); \ 630 CTASSERT(((access) & CTLTYPE) == 0 || \ 631 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \ 632 sysctl_add_oid(ctx, parent, nbr, name, \ 633 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 634 __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr), NULL); \ 635 }) 636 637 /* Oid for a quad. The pointer must be non NULL. */ 638 #define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL) 639 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ 640 SYSCTL_OID(parent, nbr, name, \ 641 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 642 ptr, val, sysctl_handle_64, "Q", descr); \ 643 CTASSERT((((access) & CTLTYPE) == 0 || \ 644 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 645 sizeof(int64_t) == sizeof(*(ptr))) 646 647 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \ 648 ({ \ 649 int64_t *__ptr = (ptr); \ 650 CTASSERT(((access) & CTLTYPE) == 0 || \ 651 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 652 sysctl_add_oid(ctx, parent, nbr, name, \ 653 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 654 __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr), NULL); \ 655 }) 656 657 #define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL) 658 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \ 659 SYSCTL_OID(parent, nbr, name, \ 660 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 661 ptr, val, sysctl_handle_64, "QU", descr); \ 662 CTASSERT((((access) & CTLTYPE) == 0 || \ 663 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 664 sizeof(uint64_t) == sizeof(*(ptr))) 665 666 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \ 667 ({ \ 668 uint64_t *__ptr = (ptr); \ 669 CTASSERT(((access) & CTLTYPE) == 0 || \ 670 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 671 sysctl_add_oid(ctx, parent, nbr, name, \ 672 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 673 __ptr, 0, sysctl_handle_64, "QU", __DESCR(descr), NULL); \ 674 }) 675 676 /* Oid for a CPU dependent variable */ 677 #define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \ 678 ({ \ 679 struct sysctl_oid *__ret; \ 680 CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \ 681 sizeof(unsigned) == sizeof(*(ptr))) && \ 682 ((access) & CTLTYPE) == 0); \ 683 if (sizeof(uint64_t) == sizeof(*(ptr))) { \ 684 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 685 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 686 (ptr), 0, sysctl_handle_64, "QU", \ 687 __DESCR(descr), NULL); \ 688 } else { \ 689 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 690 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 691 (ptr), 0, sysctl_handle_int, "IU", \ 692 __DESCR(descr), NULL); \ 693 } \ 694 __ret; \ 695 }) 696 697 /* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */ 698 #define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \ 699 SYSCTL_OID(parent, nbr, name, \ 700 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 701 (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \ 702 CTASSERT((((access) & CTLTYPE) == 0 || \ 703 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 704 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 705 sizeof(uint64_t) == sizeof(**(ptr))) 706 707 #define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \ 708 ({ \ 709 counter_u64_t *__ptr = (ptr); \ 710 CTASSERT(((access) & CTLTYPE) == 0 || \ 711 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 712 sysctl_add_oid(ctx, parent, nbr, name, \ 713 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 714 __ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr), \ 715 NULL); \ 716 }) 717 718 /* Oid for an array of counter(9)s. The pointer and length must be non zero. */ 719 #define SYSCTL_COUNTER_U64_ARRAY(parent, nbr, name, access, ptr, len, descr) \ 720 SYSCTL_OID(parent, nbr, name, \ 721 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 722 (ptr), (len), sysctl_handle_counter_u64_array, "S", descr); \ 723 CTASSERT((((access) & CTLTYPE) == 0 || \ 724 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) && \ 725 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 726 sizeof(uint64_t) == sizeof(**(ptr))) 727 728 #define SYSCTL_ADD_COUNTER_U64_ARRAY(ctx, parent, nbr, name, access, \ 729 ptr, len, descr) \ 730 ({ \ 731 counter_u64_t *__ptr = (ptr); \ 732 CTASSERT(((access) & CTLTYPE) == 0 || \ 733 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 734 sysctl_add_oid(ctx, parent, nbr, name, \ 735 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 736 __ptr, len, sysctl_handle_counter_u64_array, "S", \ 737 __DESCR(descr), NULL); \ 738 }) 739 740 /* Oid for an opaque object. Specified by a pointer and a length. */ 741 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 742 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 743 ptr, len, sysctl_handle_opaque, fmt, descr); \ 744 CTASSERT(((access) & CTLTYPE) == 0 || \ 745 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 746 747 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \ 748 ({ \ 749 CTASSERT(((access) & CTLTYPE) == 0 || \ 750 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 751 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 752 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr), NULL); \ 753 }) 754 755 /* Oid for a struct. Specified by a pointer and a type. */ 756 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 757 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 758 ptr, sizeof(struct type), sysctl_handle_opaque, \ 759 "S," #type, descr); \ 760 CTASSERT(((access) & CTLTYPE) == 0 || \ 761 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 762 763 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 764 ({ \ 765 CTASSERT(((access) & CTLTYPE) == 0 || \ 766 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 767 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 768 (ptr), sizeof(struct type), \ 769 sysctl_handle_opaque, "S," #type, __DESCR(descr), NULL); \ 770 }) 771 772 /* Oid for a procedure. Specified by a pointer and an arg. */ 773 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 774 SYSCTL_OID(parent, nbr, name, (access), \ 775 ptr, arg, handler, fmt, descr); \ 776 CTASSERT(((access) & CTLTYPE) != 0) 777 778 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 779 ({ \ 780 CTASSERT(((access) & CTLTYPE) != 0); \ 781 sysctl_add_oid(ctx, parent, nbr, name, (access), \ 782 (ptr), (arg), (handler), (fmt), __DESCR(descr), NULL); \ 783 }) 784 785 /* Oid to handle limits on uma(9) zone specified by pointer. */ 786 #define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \ 787 SYSCTL_OID(parent, nbr, name, \ 788 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 789 (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \ 790 CTASSERT(((access) & CTLTYPE) == 0 || \ 791 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 792 793 #define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \ 794 ({ \ 795 uma_zone_t __ptr = (ptr); \ 796 CTASSERT(((access) & CTLTYPE) == 0 || \ 797 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 798 sysctl_add_oid(ctx, parent, nbr, name, \ 799 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 800 __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr), \ 801 NULL); \ 802 }) 803 804 /* Oid to obtain current use of uma(9) zone specified by pointer. */ 805 #define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \ 806 SYSCTL_OID(parent, nbr, name, \ 807 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 808 (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \ 809 CTASSERT(((access) & CTLTYPE) == 0 || \ 810 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 811 812 #define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \ 813 ({ \ 814 uma_zone_t __ptr = (ptr); \ 815 CTASSERT(((access) & CTLTYPE) == 0 || \ 816 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 817 sysctl_add_oid(ctx, parent, nbr, name, \ 818 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 819 __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr), \ 820 NULL); \ 821 }) 822 823 /* OID expressing a struct timeval as seconds */ 824 #define SYSCTL_TIMEVAL_SEC(parent, nbr, name, access, ptr, descr) \ 825 SYSCTL_OID(parent, nbr, name, \ 826 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 827 (ptr), 0, sysctl_sec_to_timeval, "I", descr); \ 828 CTASSERT(((access) & CTLTYPE) == 0 || \ 829 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 830 #define SYSCTL_ADD_TIMEVAL_SEC(ctx, parent, nbr, name, access, ptr, descr) \ 831 ({ \ 832 struct timeval *__ptr = (ptr); \ 833 CTASSERT(((access) & CTLTYPE) == 0 || \ 834 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 835 sysctl_add_oid(ctx, parent, nbr, name, \ 836 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 837 __ptr, 0, sysctl_sec_to_timeval, "I", __DESCR(descr), \ 838 NULL); \ 839 }) 840 841 /* 842 * A macro to generate a read-only sysctl to indicate the presence of optional 843 * kernel features. 844 */ 845 #define FEATURE(name, desc) \ 846 SYSCTL_INT_WITH_LABEL(_kern_features, OID_AUTO, name, \ 847 CTLFLAG_RD | CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, 1, desc, "feature") 848 849 #endif /* _KERNEL */ 850 851 /* 852 * Top-level identifiers 853 */ 854 #define CTL_SYSCTL 0 /* "magic" numbers */ 855 #define CTL_KERN 1 /* "high kernel": proc, limits */ 856 #define CTL_VM 2 /* virtual memory */ 857 #define CTL_VFS 3 /* filesystem, mount type is next */ 858 #define CTL_NET 4 /* network, see socket.h */ 859 #define CTL_DEBUG 5 /* debugging parameters */ 860 #define CTL_HW 6 /* generic cpu/io */ 861 #define CTL_MACHDEP 7 /* machine dependent */ 862 #define CTL_USER 8 /* user-level */ 863 #define CTL_P1003_1B 9 /* POSIX 1003.1B */ 864 865 /* 866 * CTL_SYSCTL identifiers 867 */ 868 #define CTL_SYSCTL_DEBUG 0 /* printf all nodes */ 869 #define CTL_SYSCTL_NAME 1 /* string name of OID */ 870 #define CTL_SYSCTL_NEXT 2 /* next OID, honoring CTLFLAG_SKIP */ 871 #define CTL_SYSCTL_NAME2OID 3 /* int array of name */ 872 #define CTL_SYSCTL_OIDFMT 4 /* OID's kind and format */ 873 #define CTL_SYSCTL_OIDDESCR 5 /* OID's description */ 874 #define CTL_SYSCTL_OIDLABEL 6 /* aggregation label */ 875 #define CTL_SYSCTL_NEXTNOSKIP 7 /* next OID, ignoring CTLFLAG_SKIP */ 876 877 /* 878 * CTL_KERN identifiers 879 */ 880 #define KERN_OSTYPE 1 /* string: system version */ 881 #define KERN_OSRELEASE 2 /* string: system release */ 882 #define KERN_OSREV 3 /* int: system revision */ 883 #define KERN_VERSION 4 /* string: compile time info */ 884 #define KERN_MAXVNODES 5 /* int: max vnodes */ 885 #define KERN_MAXPROC 6 /* int: max processes */ 886 #define KERN_MAXFILES 7 /* int: max open files */ 887 #define KERN_ARGMAX 8 /* int: max arguments to exec */ 888 #define KERN_SECURELVL 9 /* int: system security level */ 889 #define KERN_HOSTNAME 10 /* string: hostname */ 890 #define KERN_HOSTID 11 /* int: host identifier */ 891 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 892 #define KERN_VNODE 13 /* struct: vnode structures */ 893 #define KERN_PROC 14 /* struct: process entries */ 894 #define KERN_FILE 15 /* struct: file entries */ 895 #define KERN_PROF 16 /* node: kernel profiling info */ 896 #define KERN_POSIX1 17 /* int: POSIX.1 version */ 897 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 898 #define KERN_JOB_CONTROL 19 /* int: is job control available */ 899 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 900 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 901 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 902 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 903 #define KERN_OSRELDATE 24 /* int: kernel release date */ 904 #define KERN_NTP_PLL 25 /* node: NTP PLL control */ 905 #define KERN_BOOTFILE 26 /* string: name of booted kernel */ 906 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 907 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 908 #define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */ 909 #define KERN_IPC 30 /* node: anything related to IPC */ 910 #define KERN_DUMMY 31 /* unused */ 911 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 912 #define KERN_USRSTACK 33 /* int: address of USRSTACK */ 913 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 914 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 915 #define KERN_HOSTUUID 36 /* string: host UUID identifier */ 916 #define KERN_ARND 37 /* int: from arc4rand() */ 917 #define KERN_MAXPHYS 38 /* int: MAXPHYS value */ 918 /* 919 * KERN_PROC subtypes 920 */ 921 #define KERN_PROC_ALL 0 /* everything */ 922 #define KERN_PROC_PID 1 /* by process id */ 923 #define KERN_PROC_PGRP 2 /* by process group id */ 924 #define KERN_PROC_SESSION 3 /* by session of pid */ 925 #define KERN_PROC_TTY 4 /* by controlling tty */ 926 #define KERN_PROC_UID 5 /* by effective uid */ 927 #define KERN_PROC_RUID 6 /* by real uid */ 928 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 929 #define KERN_PROC_PROC 8 /* only return procs */ 930 #define KERN_PROC_SV_NAME 9 /* get syscall vector name */ 931 #define KERN_PROC_RGID 10 /* by real group id */ 932 #define KERN_PROC_GID 11 /* by effective group id */ 933 #define KERN_PROC_PATHNAME 12 /* path to executable */ 934 #define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */ 935 #define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */ 936 #define KERN_PROC_KSTACK 15 /* Kernel stacks for process */ 937 #define KERN_PROC_INC_THREAD 0x10 /* 938 * modifier for pid, pgrp, tty, 939 * uid, ruid, gid, rgid and proc 940 * This effectively uses 16-31 941 */ 942 #define KERN_PROC_VMMAP 32 /* VM map entries for process */ 943 #define KERN_PROC_FILEDESC 33 /* File descriptors for process */ 944 #define KERN_PROC_GROUPS 34 /* process groups */ 945 #define KERN_PROC_ENV 35 /* get environment */ 946 #define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */ 947 #define KERN_PROC_RLIMIT 37 /* process resource limits */ 948 #define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */ 949 #define KERN_PROC_UMASK 39 /* process umask */ 950 #define KERN_PROC_OSREL 40 /* osreldate for process binary */ 951 #define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */ 952 #define KERN_PROC_CWD 42 /* process current working directory */ 953 #define KERN_PROC_NFDS 43 /* number of open file descriptors */ 954 955 /* 956 * KERN_IPC identifiers 957 */ 958 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 959 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 960 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 961 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 962 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 963 #define KIPC_MAX_HDR 6 /* int: max total length of headers */ 964 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 965 966 /* 967 * CTL_HW identifiers 968 */ 969 #define HW_MACHINE 1 /* string: machine class */ 970 #define HW_MODEL 2 /* string: specific machine model */ 971 #define HW_NCPU 3 /* int: number of cpus */ 972 #define HW_BYTEORDER 4 /* int: machine byte order */ 973 #define HW_PHYSMEM 5 /* int: total memory */ 974 #define HW_USERMEM 6 /* int: non-kernel memory */ 975 #define HW_PAGESIZE 7 /* int: software page size */ 976 #define HW_DISKNAMES 8 /* strings: disk drive names */ 977 #define HW_DISKSTATS 9 /* struct: diskstats[] */ 978 #define HW_FLOATINGPT 10 /* int: has HW floating point? */ 979 #define HW_MACHINE_ARCH 11 /* string: machine architecture */ 980 #define HW_REALMEM 12 /* int: 'real' memory */ 981 982 /* 983 * CTL_USER definitions 984 */ 985 #define USER_CS_PATH 1 /* string: _CS_PATH */ 986 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 987 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 988 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 989 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 990 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 991 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 992 #define USER_LINE_MAX 8 /* int: LINE_MAX */ 993 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 994 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 995 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 996 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 997 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 998 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 999 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 1000 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 1001 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 1002 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 1003 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 1004 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 1005 1006 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 1007 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 1008 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 1009 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 1010 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 1011 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 1012 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 1013 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 1014 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 1015 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 1016 #define CTL_P1003_1B_FSYNC 11 /* boolean */ 1017 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 1018 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 1019 #define CTL_P1003_1B_TIMERS 14 /* boolean */ 1020 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 1021 #define CTL_P1003_1B_AIO_MAX 16 /* int */ 1022 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 1023 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 1024 #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 1025 #define CTL_P1003_1B_PAGESIZE 20 /* int */ 1026 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 1027 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 1028 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 1029 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 1030 #define CTL_P1003_1B_TIMER_MAX 25 /* int */ 1031 1032 #define CTL_P1003_1B_MAXID 26 1033 1034 #ifdef _KERNEL 1035 1036 /* 1037 * Declare some common oids. 1038 */ 1039 extern struct sysctl_oid_list sysctl__children; 1040 SYSCTL_DECL(_kern); 1041 SYSCTL_DECL(_kern_features); 1042 SYSCTL_DECL(_kern_ipc); 1043 SYSCTL_DECL(_kern_proc); 1044 SYSCTL_DECL(_kern_sched); 1045 SYSCTL_DECL(_kern_sched_stats); 1046 SYSCTL_DECL(_sysctl); 1047 SYSCTL_DECL(_vm); 1048 SYSCTL_DECL(_vm_stats); 1049 SYSCTL_DECL(_vm_stats_misc); 1050 SYSCTL_DECL(_vfs); 1051 SYSCTL_DECL(_net); 1052 SYSCTL_DECL(_debug); 1053 SYSCTL_DECL(_debug_sizeof); 1054 SYSCTL_DECL(_dev); 1055 SYSCTL_DECL(_hw); 1056 SYSCTL_DECL(_hw_bus); 1057 SYSCTL_DECL(_hw_bus_devices); 1058 SYSCTL_DECL(_hw_bus_info); 1059 SYSCTL_DECL(_machdep); 1060 SYSCTL_DECL(_machdep_mitigations); 1061 SYSCTL_DECL(_user); 1062 SYSCTL_DECL(_compat); 1063 SYSCTL_DECL(_regression); 1064 SYSCTL_DECL(_security); 1065 SYSCTL_DECL(_security_bsd); 1066 1067 extern char machine[]; 1068 extern char osrelease[]; 1069 extern char ostype[]; 1070 extern char kern_ident[]; 1071 1072 /* Dynamic oid handling */ 1073 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 1074 struct sysctl_oid_list *parent, int nbr, const char *name, int kind, 1075 void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS), 1076 const char *fmt, const char *descr, const char *label); 1077 int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del, 1078 int recurse); 1079 void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name); 1080 int sysctl_move_oid(struct sysctl_oid *oidp, 1081 struct sysctl_oid_list *parent); 1082 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 1083 int sysctl_ctx_init(struct sysctl_ctx_list *clist); 1084 int sysctl_ctx_free(struct sysctl_ctx_list *clist); 1085 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 1086 struct sysctl_oid *oidp); 1087 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 1088 struct sysctl_oid *oidp); 1089 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 1090 struct sysctl_oid *oidp); 1091 1092 int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, 1093 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 1094 int flags); 1095 int kernel_sysctlbyname(struct thread *td, char *name, void *old, 1096 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 1097 int flags); 1098 int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, 1099 size_t *oldlenp, int inkernel, void *new, size_t newlen, 1100 size_t *retval, int flags); 1101 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 1102 int *nindx, struct sysctl_req *req); 1103 void sysctl_wlock(void); 1104 void sysctl_wunlock(void); 1105 int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); 1106 int kern___sysctlbyname(struct thread *td, const char *name, 1107 size_t namelen, void *old, size_t *oldlenp, void *new, 1108 size_t newlen, size_t *retval, int flags, bool inkernel); 1109 1110 struct sbuf; 1111 struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int, 1112 struct sysctl_req *); 1113 #else /* !_KERNEL */ 1114 #include <sys/cdefs.h> 1115 1116 __BEGIN_DECLS 1117 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); 1118 int sysctlbyname(const char *, void *, size_t *, const void *, size_t); 1119 int sysctlnametomib(const char *, int *, size_t *); 1120 __END_DECLS 1121 #endif /* _KERNEL */ 1122 1123 #endif /* !_SYS_SYSCTL_H_ */
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