1/* 2 * Copyright 2009 Haiku Inc. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5#ifndef _FBSD_COMPAT_SYS_SYSCTL_H_ 6#define _FBSD_COMPAT_SYS_SYSCTL_H_ 7 8 9#include <sys/queue.h> 10 11 12#ifdef _KERNEL 13 14struct sysctl_req { 15 void *newptr; 16}; 17 18struct sysctl_ctx_list { 19}; 20 21struct sysctl_oid_list { 22}; 23 24struct sysctl_oid { 25}; 26 27 28#define SYSCTL_HANDLER_ARGS void *oidp, void *arg1, int arg2, \ 29 struct sysctl_req *req 30 31#define OID_AUTO (-1) 32 33#define CTLTYPE 0xf /* Mask for the type */ 34#define CTLTYPE_NODE 1 /* name is a node */ 35#define CTLTYPE_INT 2 /* name describes an integer */ 36#define CTLTYPE_STRING 3 /* name describes a string */ 37#define CTLTYPE_QUAD 4 /* name describes a 64-bit number */ 38#define CTLTYPE_OPAQUE 5 /* name describes a structure */ 39#define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ 40#define CTLTYPE_UINT 6 /* name describes an unsigned integer */ 41#define CTLTYPE_LONG 7 /* name describes a long */ 42#define CTLTYPE_ULONG 8 /* name describes an unsigned long */ 43#define CTLTYPE_U64 9 /* name describes an unsigned 64-bit number */ 44 45#define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ 46#define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ 47#define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) 48#define CTLFLAG_NOLOCK 0x20000000 /* XXX Don't Lock */ 49#define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ 50#define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ 51#define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */ 52#define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */ 53#define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */ 54#define CTLMASK_SECURE 0x00F00000 /* Secure level */ 55#define CTLFLAG_TUN 0x00080000 /* Tunable variable */ 56#define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN) 57#define CTLFLAG_RWTUN (CTLFLAG_RW|CTLFLAG_TUN) 58#define CTLFLAG_MPSAFE 0x00040000 /* Handler is MP safe */ 59#define CTLFLAG_VNET 0x00020000 /* Prisons with vnet can fiddle */ 60#define CTLFLAG_DYING 0x00010000 /* Oid is being removed */ 61#define CTLFLAG_CAPRD 0x00008000 /* Can be read in capability mode */ 62#define CTLFLAG_CAPWR 0x00004000 /* Can be written in capability mode */ 63#define CTLFLAG_STATS 0x00002000 /* Statistics, not a tuneable */ 64#define CTLFLAG_NOFETCH 0x00001000 /* Don't fetch tunable from getenv() */ 65#define CTLFLAG_CAPRW (CTLFLAG_CAPRD|CTLFLAG_CAPWR) 66/* 67 * This is transient flag to be used until all sysctl handlers are converted 68 * to not lock Giant. 69 * One, and only one of CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT is required 70 * for SYSCTL_PROC and SYSCTL_NODE. 71 */ 72#define CTLFLAG_NEEDGIANT 0x00000800 /* Handler require Giant */ 73 74 75static inline int 76sysctl_ctx_init(struct sysctl_ctx_list *clist) 77{ 78 return -1; 79} 80 81 82static inline int 83sysctl_ctx_free(struct sysctl_ctx_list *clist) 84{ 85 return -1; 86} 87 88 89static inline int 90sysctl_wire_old_buffer(struct sysctl_req *req, size_t len) 91{ 92 return -1; 93} 94 95 96static inline struct sbuf * 97sbuf_new_for_sysctl(struct sbuf *s, char *buf, int length, 98 struct sysctl_req *req) 99{ 100 return NULL; 101} 102 103 104static inline void * 105sysctl_add_oid(struct sysctl_ctx_list *clist, void *parent, int nbr, 106 const char *name, int kind, void *arg1, int arg2, 107 int (*handler) (SYSCTL_HANDLER_ARGS), const char *fmt, const char *descr) 108{ 109 return NULL; 110} 111 112 113static inline int sysctl_handle_long(SYSCTL_HANDLER_ARGS) { return -1; } 114static inline int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS) { return -1; } 115static inline int sysctl_handle_quad(SYSCTL_HANDLER_ARGS) { return -1; } 116static inline int sysctl_handle_int(SYSCTL_HANDLER_ARGS) { return -1; } 117static inline int sysctl_handle_64(SYSCTL_HANDLER_ARGS) { return -1; } 118static inline int sysctl_handle_string(SYSCTL_HANDLER_ARGS) { return -1; } 119 120 121#define SYSCTL_OUT(r, p, l) -1 122 123#define __DESCR(x) "" 124 125#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 126 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, \ 127 __DESCR(descr)) 128 129#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 130 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 131 0, 0, handler, "N", __DESCR(descr)) 132 133#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 134 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 135 arg, len, sysctl_handle_string, "A", __DESCR(descr)) 136 137#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 138 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|(access), \ 139 ptr, val, sysctl_handle_int, "I", __DESCR(descr)) 140 141#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 142 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|(access), \ 143 ptr, val, sysctl_handle_int, "IU", __DESCR(descr)) 144 145#define SYSCTL_ADD_XINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 146 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|(access), \ 147 ptr, val, sysctl_handle_int, "IX", __DESCR(descr)) 148 149#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 150 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|(access), \ 151 ptr, 0, sysctl_handle_long, "L", __DESCR(descr)) 152 153#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 154 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|(access), \ 155 ptr, 0, sysctl_handle_long, "LU", __DESCR(descr)) 156 157#define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \ 158 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_QUAD|(access), \ 159 ptr, 0, sysctl_handle_quad, "Q", __DESCR(descr)) 160 161#define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \ 162 sysctl_add_oid(ctx, parent, nbr, name, \ 163 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 164 ptr, 0, sysctl_handle_64, "QU", __DESCR(descr)) 165 166#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \ 167 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 168 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr)) 169 170#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 171 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 172 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, __DESCR(descr)) 173 174#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 175 sysctl_add_oid(ctx, parent, nbr, name, (access), ptr, arg, handler, fmt, \ 176 __DESCR(descr)) 177 178 179static inline void * 180SYSCTL_CHILDREN(void *ptr) 181{ 182 return NULL; 183} 184 185 186#define SYSCTL_STATIC_CHILDREN(...) NULL 187 188#define SYSCTL_DECL(name) \ 189 extern struct sysctl_oid_list sysctl_##name##_children 190 191#define SYSCTL_NODE(...) 192#define SYSCTL_INT(...) 193#define SYSCTL_UINT(...) 194#define SYSCTL_PROC(...) 195 196#endif 197 198#endif 199