/*- * Copyright (c) 1989, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Mike Karels at Berkeley Software Design, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)sysctl.h 8.1 (Berkeley) 6/2/93 * $FreeBSD$ */ #ifndef _SYS_SYSCTL_H_ #define _SYS_SYSCTL_H_ #include struct thread; /* * Definitions for sysctl call. The sysctl call uses a hierarchical name * for objects that can be examined or modified. The name is expressed as * a sequence of integers. Like a file path name, the meaning of each * component depends on its place in the hierarchy. The top-level and kern * identifiers are defined here, and other identifiers are defined in the * respective subsystem header files. */ #define CTL_MAXNAME 24 /* largest number of components supported */ /* * Each subsystem defined by sysctl defines a list of variables * for that subsystem. Each name is either a node with further * levels defined below it, or it is a leaf of some particular * type given below. Each sysctl level defines a set of name/type * pairs to be used by sysctl(8) in manipulating the subsystem. */ struct ctlname { char *ctl_name; /* subsystem name */ int ctl_type; /* type of name */ }; #define CTLTYPE 0xf /* Mask for the type */ #define CTLTYPE_NODE 1 /* name is a node */ #define CTLTYPE_INT 2 /* name describes an integer */ #define CTLTYPE_STRING 3 /* name describes a string */ #define CTLTYPE_S64 4 /* name describes a signed 64-bit number */ #define CTLTYPE_OPAQUE 5 /* name describes a structure */ #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ #define CTLTYPE_UINT 6 /* name describes an unsigned integer */ #define CTLTYPE_LONG 7 /* name describes a long */ #define CTLTYPE_ULONG 8 /* name describes an unsigned long */ #define CTLTYPE_U64 9 /* name describes an unsigned 64-bit number */ #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */ #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */ #define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */ #define CTLMASK_SECURE 0x00F00000 /* Secure level */ #define CTLFLAG_TUN 0x00080000 /* Tunable variable */ #define CTLFLAG_MPSAFE 0x00040000 /* Handler is MP safe */ #define CTLFLAG_VNET 0x00020000 /* Prisons with vnet can fiddle */ #define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN) #define CTLFLAG_DYING 0x00010000 /* oid is being removed */ #define CTLFLAG_CAPRD 0x00008000 /* Can be read in capability mode */ #define CTLFLAG_CAPWR 0x00004000 /* Can be written in capability mode */ #define CTLFLAG_CAPRW (CTLFLAG_CAPRD|CTLFLAG_CAPWR) /* * Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1. * * Secure when the securelevel is raised to at least N. */ #define CTLSHIFT_SECURE 20 #define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE)) #define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE)) #define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE)) /* * USE THIS instead of a hardwired number from the categories below * to get dynamically assigned sysctl entries using the linker-set * technology. This is the way nearly all new sysctl variables should * be implemented. * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); */ #define OID_AUTO (-1) /* * The starting number for dynamically-assigned entries. WARNING! * ALL static sysctl entries should have numbers LESS than this! */ #define CTL_AUTO_START 0x100 #ifdef _KERNEL #include #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \ intptr_t arg2, struct sysctl_req *req /* definitions for sysctl_req 'lock' member */ #define REQ_UNWIRED 1 #define REQ_WIRED 2 /* definitions for sysctl_req 'flags' member */ #if defined(__amd64__) || defined(__ia64__) || defined(__powerpc64__) || \ (defined(__mips__) && defined(__mips_n64)) #define SCTL_MASK32 1 /* 32 bit emulation */ #endif /* * This describes the access space for a sysctl request. This is needed * so that we can use the interface from the kernel or from user-space. */ struct sysctl_req { struct thread *td; /* used for access checking */ int lock; /* wiring state */ void *oldptr; size_t oldlen; size_t oldidx; int (*oldfunc)(struct sysctl_req *, const void *, size_t); void *newptr; size_t newlen; size_t newidx; int (*newfunc)(struct sysctl_req *, void *, size_t); size_t validlen; int flags; }; SLIST_HEAD(sysctl_oid_list, sysctl_oid); /* * This describes one "oid" in the MIB tree. Potentially more nodes can * be hidden behind it, expanded by the handler. */ struct sysctl_oid { struct sysctl_oid_list *oid_parent; SLIST_ENTRY(sysctl_oid) oid_link; int oid_number; u_int oid_kind; void *oid_arg1; intptr_t oid_arg2; const char *oid_name; int (*oid_handler)(SYSCTL_HANDLER_ARGS); const char *oid_fmt; int oid_refcnt; u_int oid_running; const char *oid_descr; }; #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) int sysctl_handle_int(SYSCTL_HANDLER_ARGS); int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS); int sysctl_handle_long(SYSCTL_HANDLER_ARGS); int sysctl_handle_64(SYSCTL_HANDLER_ARGS); int sysctl_handle_string(SYSCTL_HANDLER_ARGS); int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS); int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS); int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS); /* * These functions are used to add/remove an oid from the mib. */ void sysctl_register_oid(struct sysctl_oid *oidp); void sysctl_unregister_oid(struct sysctl_oid *oidp); /* Declare a static oid to allow child oids to be added to it. */ #define SYSCTL_DECL(name) \ extern struct sysctl_oid_list sysctl_##name##_children /* Hide these in macros */ #define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \ (oid_ptr)->oid_arg1 #define SYSCTL_CHILDREN_SET(oid_ptr, val) \ (oid_ptr)->oid_arg1 = (val); #define SYSCTL_STATIC_CHILDREN(oid_name) \ (&sysctl_##oid_name##_children) /* === Structs and macros related to context handling === */ /* All dynamically created sysctls can be tracked in a context list. */ struct sysctl_ctx_entry { struct sysctl_oid *entry; TAILQ_ENTRY(sysctl_ctx_entry) link; }; TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); #define SYSCTL_NODE_CHILDREN(parent, name) \ sysctl_##parent##_##name##_children /* * These macros provide type safety for sysctls. SYSCTL_ALLOWED_TYPES() * defines a transparent union of the allowed types. SYSCTL_ASSERT_TYPE() * and SYSCTL_ADD_ASSERT_TYPE() use the transparent union to assert that * the pointer matches the allowed types. * * The allow_0 member allows a literal 0 to be passed for ptr. */ #define SYSCTL_ALLOWED_TYPES(type, decls) \ union sysctl_##type { \ long allow_0; \ decls \ } __attribute__((__transparent_union__)); \ \ static inline void * \ __sysctl_assert_##type(union sysctl_##type ptr) \ { \ return (ptr.a); \ } \ struct __hack SYSCTL_ALLOWED_TYPES(INT, int *a; ); SYSCTL_ALLOWED_TYPES(UINT, unsigned int *a; ); SYSCTL_ALLOWED_TYPES(LONG, long *a; ); SYSCTL_ALLOWED_TYPES(ULONG, unsigned long *a; ); SYSCTL_ALLOWED_TYPES(INT64, int64_t *a; long long *b; ); SYSCTL_ALLOWED_TYPES(UINT64, uint64_t *a; unsigned long long *b; ); #ifdef notyet #define SYSCTL_ADD_ASSERT_TYPE(type, ptr) \ __sysctl_assert_ ## type (ptr) #define SYSCTL_ASSERT_TYPE(type, ptr, parent, name) \ _SYSCTL_ASSERT_TYPE(type, ptr, __LINE__, parent##_##name) #else #define SYSCTL_ADD_ASSERT_TYPE(type, ptr) ptr #define SYSCTL_ASSERT_TYPE(type, ptr, parent, name) #endif #define _SYSCTL_ASSERT_TYPE(t, p, l, id) \ __SYSCTL_ASSERT_TYPE(t, p, l, id) #define __SYSCTL_ASSERT_TYPE(type, ptr, line, id) \ static inline void \ sysctl_assert_##line##_##id(void) \ { \ (void)__sysctl_assert_##type(ptr); \ } \ struct __hack #ifndef NO_SYSCTL_DESCR #define __DESCR(d) d #else #define __DESCR(d) "" #endif /* This constructs a "raw" MIB oid. */ #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ static struct sysctl_oid sysctl__##parent##_##name = { \ &sysctl_##parent##_children, { NULL }, nbr, kind, \ a1, a2, #name, handler, fmt, 0, 0, __DESCR(descr) }; \ DATA_SET(sysctl_set, sysctl__##parent##_##name) #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr)) /* This constructs a node from which other oids can hang. */ #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ struct sysctl_oid_list SYSCTL_NODE_CHILDREN(parent, name); \ SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|(access), \ (void*)&SYSCTL_NODE_CHILDREN(parent, name), 0, handler, "N", descr) #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ NULL, 0, handler, "N", __DESCR(descr)) /* Oid for a string. len can be 0 to indicate '\0' termination. */ #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ arg, len, sysctl_handle_string, "A", descr) #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ arg, len, sysctl_handle_string, "A", __DESCR(descr)) /* Oid for an int. If ptr is NULL, val is returned. */ #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_ASSERT_TYPE(INT, ptr, parent, name); \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_int, "I", descr) #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ SYSCTL_ADD_ASSERT_TYPE(INT, ptr), val, \ sysctl_handle_int, "I", __DESCR(descr)) /* Oid for an unsigned int. If ptr is NULL, val is returned. */ #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_ASSERT_TYPE(UINT, ptr, parent, name); \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_int, "IU", descr) #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ SYSCTL_ADD_ASSERT_TYPE(UINT, ptr), val, \ sysctl_handle_int, "IU", __DESCR(descr)) /* Oid for a long. The pointer must be non NULL. */ #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_ASSERT_TYPE(LONG, ptr, parent, name); \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_long, "L", descr) #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ SYSCTL_ADD_ASSERT_TYPE(LONG, ptr), 0, \ sysctl_handle_long, "L", __DESCR(descr)) /* Oid for an unsigned long. The pointer must be non NULL. */ #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_ASSERT_TYPE(ULONG, ptr, parent, name); \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_long, "LU", descr) #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ SYSCTL_ADD_ASSERT_TYPE(ULONG, ptr), 0, \ sysctl_handle_long, "LU", __DESCR(descr)) /* Oid for a quad. The pointer must be non NULL. */ #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_ASSERT_TYPE(INT64, ptr, parent, name); \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_64, "Q", descr) #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ SYSCTL_ADD_ASSERT_TYPE(INT64, ptr), 0, \ sysctl_handle_64, "Q", __DESCR(descr)) #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_ASSERT_TYPE(UINT64, ptr, parent, name); \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_64, "QU", descr) #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ SYSCTL_ADD_ASSERT_TYPE(UINT64, ptr), 0, \ sysctl_handle_64, "QU", __DESCR(descr)) /* Oid for an opaque object. Specified by a pointer and a length. */ #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ ptr, len, sysctl_handle_opaque, fmt, descr) #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\ sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr)) /* Oid for a struct. Specified by a pointer and a type. */ #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ ptr, sizeof(struct type), sysctl_handle_opaque, \ "S," #type, descr) #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, __DESCR(descr)) /* Oid for a procedure. Specified by a pointer and an arg. */ #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ CTASSERT(((access) & CTLTYPE) != 0); \ SYSCTL_OID(parent, nbr, name, (access), \ ptr, arg, handler, fmt, descr) #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ sysctl_add_oid(ctx, parent, nbr, name, (access), \ ptr, arg, handler, fmt, __DESCR(descr)) /* * A macro to generate a read-only sysctl to indicate the presense of optional * kernel features. */ #define FEATURE(name, desc) \ SYSCTL_INT(_kern_features, OID_AUTO, name, CTLFLAG_RD | CTLFLAG_CAPRD, \ 0, 1, desc) #endif /* _KERNEL */ /* * Top-level identifiers */ #define CTL_UNSPEC 0 /* unused */ #define CTL_KERN 1 /* "high kernel": proc, limits */ #define CTL_VM 2 /* virtual memory */ #define CTL_VFS 3 /* filesystem, mount type is next */ #define CTL_NET 4 /* network, see socket.h */ #define CTL_DEBUG 5 /* debugging parameters */ #define CTL_HW 6 /* generic cpu/io */ #define CTL_MACHDEP 7 /* machine dependent */ #define CTL_USER 8 /* user-level */ #define CTL_P1003_1B 9 /* POSIX 1003.1B */ #define CTL_MAXID 10 /* number of valid top-level ids */ #define CTL_NAMES { \ { 0, 0 }, \ { "kern", CTLTYPE_NODE }, \ { "vm", CTLTYPE_NODE }, \ { "vfs", CTLTYPE_NODE }, \ { "net", CTLTYPE_NODE }, \ { "debug", CTLTYPE_NODE }, \ { "hw", CTLTYPE_NODE }, \ { "machdep", CTLTYPE_NODE }, \ { "user", CTLTYPE_NODE }, \ { "p1003_1b", CTLTYPE_NODE }, \ } /* * CTL_KERN identifiers */ #define KERN_OSTYPE 1 /* string: system version */ #define KERN_OSRELEASE 2 /* string: system release */ #define KERN_OSREV 3 /* int: system revision */ #define KERN_VERSION 4 /* string: compile time info */ #define KERN_MAXVNODES 5 /* int: max vnodes */ #define KERN_MAXPROC 6 /* int: max processes */ #define KERN_MAXFILES 7 /* int: max open files */ #define KERN_ARGMAX 8 /* int: max arguments to exec */ #define KERN_SECURELVL 9 /* int: system security level */ #define KERN_HOSTNAME 10 /* string: hostname */ #define KERN_HOSTID 11 /* int: host identifier */ #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ #define KERN_VNODE 13 /* struct: vnode structures */ #define KERN_PROC 14 /* struct: process entries */ #define KERN_FILE 15 /* struct: file entries */ #define KERN_PROF 16 /* node: kernel profiling info */ #define KERN_POSIX1 17 /* int: POSIX.1 version */ #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ #define KERN_JOB_CONTROL 19 /* int: is job control available */ #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ #define KERN_NISDOMAINNAME 22 /* string: YP domain name */ #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ #define KERN_OSRELDATE 24 /* int: kernel release date */ #define KERN_NTP_PLL 25 /* node: NTP PLL control */ #define KERN_BOOTFILE 26 /* string: name of booted kernel */ #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ #define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */ #define KERN_IPC 30 /* node: anything related to IPC */ #define KERN_DUMMY 31 /* unused */ #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ #define KERN_USRSTACK 33 /* int: address of USRSTACK */ #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ #define KERN_HOSTUUID 36 /* string: host UUID identifier */ #define KERN_ARND 37 /* int: from arc4rand() */ #define KERN_MAXID 38 /* number of valid kern ids */ #define CTL_KERN_NAMES { \ { 0, 0 }, \ { "ostype", CTLTYPE_STRING }, \ { "osrelease", CTLTYPE_STRING }, \ { "osrevision", CTLTYPE_INT }, \ { "version", CTLTYPE_STRING }, \ { "maxvnodes", CTLTYPE_INT }, \ { "maxproc", CTLTYPE_INT }, \ { "maxfiles", CTLTYPE_INT }, \ { "argmax", CTLTYPE_INT }, \ { "securelevel", CTLTYPE_INT }, \ { "hostname", CTLTYPE_STRING }, \ { "hostid", CTLTYPE_UINT }, \ { "clockrate", CTLTYPE_STRUCT }, \ { "vnode", CTLTYPE_STRUCT }, \ { "proc", CTLTYPE_STRUCT }, \ { "file", CTLTYPE_STRUCT }, \ { "profiling", CTLTYPE_NODE }, \ { "posix1version", CTLTYPE_INT }, \ { "ngroups", CTLTYPE_INT }, \ { "job_control", CTLTYPE_INT }, \ { "saved_ids", CTLTYPE_INT }, \ { "boottime", CTLTYPE_STRUCT }, \ { "nisdomainname", CTLTYPE_STRING }, \ { "update", CTLTYPE_INT }, \ { "osreldate", CTLTYPE_INT }, \ { "ntp_pll", CTLTYPE_NODE }, \ { "bootfile", CTLTYPE_STRING }, \ { "maxfilesperproc", CTLTYPE_INT }, \ { "maxprocperuid", CTLTYPE_INT }, \ { "ipc", CTLTYPE_NODE }, \ { "dummy", CTLTYPE_INT }, \ { "ps_strings", CTLTYPE_INT }, \ { "usrstack", CTLTYPE_INT }, \ { "logsigexit", CTLTYPE_INT }, \ { "iov_max", CTLTYPE_INT }, \ { "hostuuid", CTLTYPE_STRING }, \ { "arc4rand", CTLTYPE_OPAQUE }, \ } /* * CTL_VFS identifiers */ #define CTL_VFS_NAMES { \ { "vfsconf", CTLTYPE_STRUCT }, \ } /* * KERN_PROC subtypes */ #define KERN_PROC_ALL 0 /* everything */ #define KERN_PROC_PID 1 /* by process id */ #define KERN_PROC_PGRP 2 /* by process group id */ #define KERN_PROC_SESSION 3 /* by session of pid */ #define KERN_PROC_TTY 4 /* by controlling tty */ #define KERN_PROC_UID 5 /* by effective uid */ #define KERN_PROC_RUID 6 /* by real uid */ #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ #define KERN_PROC_PROC 8 /* only return procs */ #define KERN_PROC_SV_NAME 9 /* get syscall vector name */ #define KERN_PROC_RGID 10 /* by real group id */ #define KERN_PROC_GID 11 /* by effective group id */ #define KERN_PROC_PATHNAME 12 /* path to executable */ #define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */ #define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */ #define KERN_PROC_KSTACK 15 /* Kernel stacks for process */ #define KERN_PROC_INC_THREAD 0x10 /* * modifier for pid, pgrp, tty, * uid, ruid, gid, rgid and proc * This effectively uses 16-31 */ #define KERN_PROC_VMMAP 32 /* VM map entries for process */ #define KERN_PROC_FILEDESC 33 /* File descriptors for process */ #define KERN_PROC_GROUPS 34 /* process groups */ #define KERN_PROC_ENV 35 /* get environment */ #define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */ #define KERN_PROC_RLIMIT 37 /* process resource limits */ #define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */ #define KERN_PROC_UMASK 39 /* process umask */ /* * KERN_IPC identifiers */ #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ #define KIPC_SOMAXCONN 3 /* int: max length of connection q */ #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ #define KIPC_MAX_HDR 6 /* int: max total length of headers */ #define KIPC_MAX_DATALEN 7 /* int: max length of data? */ /* * CTL_HW identifiers */ #define HW_MACHINE 1 /* string: machine class */ #define HW_MODEL 2 /* string: specific machine model */ #define HW_NCPU 3 /* int: number of cpus */ #define HW_BYTEORDER 4 /* int: machine byte order */ #define HW_PHYSMEM 5 /* int: total memory */ #define HW_USERMEM 6 /* int: non-kernel memory */ #define HW_PAGESIZE 7 /* int: software page size */ #define HW_DISKNAMES 8 /* strings: disk drive names */ #define HW_DISKSTATS 9 /* struct: diskstats[] */ #define HW_FLOATINGPT 10 /* int: has HW floating point? */ #define HW_MACHINE_ARCH 11 /* string: machine architecture */ #define HW_REALMEM 12 /* int: 'real' memory */ #define HW_MAXID 13 /* number of valid hw ids */ #define CTL_HW_NAMES { \ { 0, 0 }, \ { "machine", CTLTYPE_STRING }, \ { "model", CTLTYPE_STRING }, \ { "ncpu", CTLTYPE_INT }, \ { "byteorder", CTLTYPE_INT }, \ { "physmem", CTLTYPE_ULONG }, \ { "usermem", CTLTYPE_ULONG }, \ { "pagesize", CTLTYPE_INT }, \ { "disknames", CTLTYPE_STRUCT }, \ { "diskstats", CTLTYPE_STRUCT }, \ { "floatingpoint", CTLTYPE_INT }, \ { "machine_arch", CTLTYPE_STRING }, \ { "realmem", CTLTYPE_ULONG }, \ } /* * CTL_USER definitions */ #define USER_CS_PATH 1 /* string: _CS_PATH */ #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ #define USER_LINE_MAX 8 /* int: LINE_MAX */ #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ #define USER_MAXID 21 /* number of valid user ids */ #define CTL_USER_NAMES { \ { 0, 0 }, \ { "cs_path", CTLTYPE_STRING }, \ { "bc_base_max", CTLTYPE_INT }, \ { "bc_dim_max", CTLTYPE_INT }, \ { "bc_scale_max", CTLTYPE_INT }, \ { "bc_string_max", CTLTYPE_INT }, \ { "coll_weights_max", CTLTYPE_INT }, \ { "expr_nest_max", CTLTYPE_INT }, \ { "line_max", CTLTYPE_INT }, \ { "re_dup_max", CTLTYPE_INT }, \ { "posix2_version", CTLTYPE_INT }, \ { "posix2_c_bind", CTLTYPE_INT }, \ { "posix2_c_dev", CTLTYPE_INT }, \ { "posix2_char_term", CTLTYPE_INT }, \ { "posix2_fort_dev", CTLTYPE_INT }, \ { "posix2_fort_run", CTLTYPE_INT }, \ { "posix2_localedef", CTLTYPE_INT }, \ { "posix2_sw_dev", CTLTYPE_INT }, \ { "posix2_upe", CTLTYPE_INT }, \ { "stream_max", CTLTYPE_INT }, \ { "tzname_max", CTLTYPE_INT }, \ } #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ #define CTL_P1003_1B_MEMLOCK 3 /* boolean */ #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ #define CTL_P1003_1B_FSYNC 11 /* boolean */ #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ #define CTL_P1003_1B_TIMERS 14 /* boolean */ #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ #define CTL_P1003_1B_AIO_MAX 16 /* int */ #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ #define CTL_P1003_1B_PAGESIZE 20 /* int */ #define CTL_P1003_1B_RTSIG_MAX 21 /* int */ #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ #define CTL_P1003_1B_TIMER_MAX 25 /* int */ #define CTL_P1003_1B_MAXID 26 #define CTL_P1003_1B_NAMES { \ { 0, 0 }, \ { "asynchronous_io", CTLTYPE_INT }, \ { "mapped_files", CTLTYPE_INT }, \ { "memlock", CTLTYPE_INT }, \ { "memlock_range", CTLTYPE_INT }, \ { "memory_protection", CTLTYPE_INT }, \ { "message_passing", CTLTYPE_INT }, \ { "prioritized_io", CTLTYPE_INT }, \ { "priority_scheduling", CTLTYPE_INT }, \ { "realtime_signals", CTLTYPE_INT }, \ { "semaphores", CTLTYPE_INT }, \ { "fsync", CTLTYPE_INT }, \ { "shared_memory_objects", CTLTYPE_INT }, \ { "synchronized_io", CTLTYPE_INT }, \ { "timers", CTLTYPE_INT }, \ { "aio_listio_max", CTLTYPE_INT }, \ { "aio_max", CTLTYPE_INT }, \ { "aio_prio_delta_max", CTLTYPE_INT }, \ { "delaytimer_max", CTLTYPE_INT }, \ { "mq_open_max", CTLTYPE_INT }, \ { "pagesize", CTLTYPE_INT }, \ { "rtsig_max", CTLTYPE_INT }, \ { "nsems_max", CTLTYPE_INT }, \ { "sem_value_max", CTLTYPE_INT }, \ { "sigqueue_max", CTLTYPE_INT }, \ { "timer_max", CTLTYPE_INT }, \ } #ifdef _KERNEL /* * Declare some common oids. */ extern struct sysctl_oid_list sysctl__children; SYSCTL_DECL(_kern); SYSCTL_DECL(_kern_features); SYSCTL_DECL(_kern_ipc); SYSCTL_DECL(_kern_proc); SYSCTL_DECL(_kern_sched); SYSCTL_DECL(_kern_sched_stats); SYSCTL_DECL(_sysctl); SYSCTL_DECL(_vm); SYSCTL_DECL(_vm_stats); SYSCTL_DECL(_vm_stats_misc); SYSCTL_DECL(_vfs); SYSCTL_DECL(_net); SYSCTL_DECL(_debug); SYSCTL_DECL(_debug_sizeof); SYSCTL_DECL(_dev); SYSCTL_DECL(_hw); SYSCTL_DECL(_hw_bus); SYSCTL_DECL(_hw_bus_devices); SYSCTL_DECL(_hw_bus_info); SYSCTL_DECL(_machdep); SYSCTL_DECL(_user); SYSCTL_DECL(_compat); SYSCTL_DECL(_regression); SYSCTL_DECL(_security); SYSCTL_DECL(_security_bsd); extern char machine[]; extern char osrelease[]; extern char ostype[]; extern char kern_ident[]; /* Dynamic oid handling */ struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, struct sysctl_oid_list *parent, int nbr, const char *name, int kind, void *arg1, intptr_t arg2, int (*handler) (SYSCTL_HANDLER_ARGS), const char *fmt, const char *descr); int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del, int recurse); void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name); int sysctl_move_oid(struct sysctl_oid *oidp, struct sysctl_oid_list *parent); int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); int sysctl_ctx_init(struct sysctl_ctx_list *clist); int sysctl_ctx_free(struct sysctl_ctx_list *clist); struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, struct sysctl_oid *oidp); struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, struct sysctl_oid *oidp); int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, struct sysctl_oid *oidp); int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, size_t *oldlenp, void *new, size_t newlen, size_t *retval, int flags); int kernel_sysctlbyname(struct thread *td, char *name, void *old, size_t *oldlenp, void *new, size_t newlen, size_t *retval, int flags); int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, size_t *oldlenp, int inkernel, void *new, size_t newlen, size_t *retval, int flags); int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, int *nindx, struct sysctl_req *req); void sysctl_lock(void); void sysctl_unlock(void); int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); struct sbuf; struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int, struct sysctl_req *); #else /* !_KERNEL */ #include __BEGIN_DECLS int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); int sysctlbyname(const char *, void *, size_t *, const void *, size_t); int sysctlnametomib(const char *, int *, size_t *); __END_DECLS #endif /* _KERNEL */ #endif /* !_SYS_SYSCTL_H_ */