1 | /* |
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2 | * Copyright (c) 1989, 1993 |
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3 | * The Regents of the University of California. All rights reserved. |
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4 | * |
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5 | * This code is derived from software contributed to Berkeley by |
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6 | * Mike Karels at Berkeley Software Design, Inc. |
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7 | * |
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8 | * Redistribution and use in source and binary forms, with or without |
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9 | * modification, are permitted provided that the following conditions |
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10 | * are met: |
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11 | * 1. Redistributions of source code must retain the above copyright |
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12 | * notice, this list of conditions and the following disclaimer. |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * 4. Neither the name of the University nor the names of its contributors |
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17 | * may be used to endorse or promote products derived from this software |
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18 | * without specific prior written permission. |
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19 | * |
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20 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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30 | * SUCH DAMAGE. |
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31 | * |
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32 | * @(#)sysctl.h 8.1 (Berkeley) 6/2/93 |
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33 | * $FreeBSD: src/sys/sys/sysctl.h,v 1.133 2004/10/11 22:04:16 peter Exp $ |
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34 | */ |
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35 | |
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36 | #ifndef _SYS_SYSCTL_H_ |
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37 | #define _SYS_SYSCTL_H_ |
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38 | |
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39 | #include <stdint.h> |
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40 | #include <rtems/bsd/sys/queue.h> |
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41 | |
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42 | struct thread; |
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43 | /* |
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44 | * Definitions for sysctl call. The sysctl call uses a hierarchical name |
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45 | * for objects that can be examined or modified. The name is expressed as |
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46 | * a sequence of integers. Like a file path name, the meaning of each |
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47 | * component depends on its place in the hierarchy. The top-level and kern |
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48 | * identifiers are defined here, and other identifiers are defined in the |
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49 | * respective subsystem header files. |
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50 | */ |
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51 | |
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52 | #define CTL_MAXNAME 24 /* largest number of components supported */ |
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53 | |
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54 | /* |
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55 | * Each subsystem defined by sysctl defines a list of variables |
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56 | * for that subsystem. Each name is either a node with further |
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57 | * levels defined below it, or it is a leaf of some particular |
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58 | * type given below. Each sysctl level defines a set of name/type |
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59 | * pairs to be used by sysctl(8) in manipulating the subsystem. |
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60 | */ |
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61 | struct ctlname { |
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62 | char *ctl_name; /* subsystem name */ |
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63 | int ctl_type; /* type of name */ |
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64 | }; |
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65 | |
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66 | #define CTLTYPE 0xf /* Mask for the type */ |
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67 | #define CTLTYPE_NODE 1 /* name is a node */ |
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68 | #define CTLTYPE_INT 2 /* name describes an integer */ |
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69 | #define CTLTYPE_STRING 3 /* name describes a string */ |
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70 | #define CTLTYPE_QUAD 4 /* name describes a 64-bit number */ |
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71 | #define CTLTYPE_OPAQUE 5 /* name describes a structure */ |
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72 | #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ |
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73 | #define CTLTYPE_UINT 6 /* name describes an unsigned integer */ |
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74 | #define CTLTYPE_LONG 7 /* name describes a long */ |
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75 | #define CTLTYPE_ULONG 8 /* name describes an unsigned long */ |
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76 | |
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77 | #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ |
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78 | #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ |
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79 | #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) |
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80 | #define CTLFLAG_NOLOCK 0x20000000 /* XXX Don't Lock */ |
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81 | #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ |
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82 | #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ |
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83 | #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */ |
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84 | #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */ |
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85 | #define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */ |
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86 | #define CTLMASK_SECURE 0x00F00000 /* Secure level */ |
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87 | #define CTLFLAG_TUN 0x00080000 /* Tunable variable */ |
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88 | #define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN) |
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89 | |
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90 | /* |
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91 | * Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1. |
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92 | * |
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93 | * Secure when the securelevel is raised to at least N. |
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94 | */ |
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95 | #define CTLSHIFT_SECURE 20 |
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96 | #define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE)) |
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97 | #define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE)) |
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98 | #define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE)) |
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99 | |
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100 | /* |
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101 | * USE THIS instead of a hardwired number from the categories below |
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102 | * to get dynamically assigned sysctl entries using the linker-set |
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103 | * technology. This is the way nearly all new sysctl variables should |
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104 | * be implemented. |
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105 | * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); |
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106 | */ |
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107 | #define OID_AUTO (-1) |
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108 | |
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109 | /* |
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110 | * The starting number for dynamically-assigned entries. WARNING! |
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111 | * ALL static sysctl entries should have numbers LESS than this! |
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112 | */ |
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113 | #define CTL_AUTO_START 0x100 |
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114 | |
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115 | #ifdef _KERNEL |
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116 | #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \ |
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117 | struct sysctl_req *req |
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118 | |
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119 | /* definitions for sysctl_req 'lock' member */ |
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120 | #define REQ_UNLOCKED 0 /* not locked and not wired */ |
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121 | #define REQ_LOCKED 1 /* locked and not wired */ |
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122 | #define REQ_WIRED 2 /* locked and wired */ |
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123 | |
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124 | /* |
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125 | * This describes the access space for a sysctl request. This is needed |
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126 | * so that we can use the interface from the kernel or from user-space. |
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127 | */ |
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128 | struct sysctl_req { |
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129 | struct thread *td; /* used for access checking */ |
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130 | int lock; /* locking/wiring state */ |
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131 | void *oldptr; |
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132 | size_t oldlen; |
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133 | size_t oldidx; |
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134 | int (*oldfunc)(struct sysctl_req *, const void *, size_t); |
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135 | void *newptr; |
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136 | size_t newlen; |
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137 | size_t newidx; |
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138 | int (*newfunc)(struct sysctl_req *, void *, size_t); |
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139 | size_t validlen; |
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140 | }; |
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141 | |
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142 | SLIST_HEAD(sysctl_oid_list, sysctl_oid); |
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143 | |
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144 | /* |
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145 | * This describes one "oid" in the MIB tree. Potentially more nodes can |
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146 | * be hidden behind it, expanded by the handler. |
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147 | */ |
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148 | struct sysctl_oid { |
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149 | struct sysctl_oid_list *oid_parent; |
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150 | SLIST_ENTRY(sysctl_oid) oid_link; |
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151 | int oid_number; |
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152 | uint32_t oid_kind; |
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153 | void *oid_arg1; |
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154 | int oid_arg2; |
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155 | const char *oid_name; |
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156 | int (*oid_handler)(SYSCTL_HANDLER_ARGS); |
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157 | const char *oid_fmt; |
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158 | int oid_refcnt; |
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159 | const char *descr; |
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160 | }; |
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161 | |
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162 | #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) |
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163 | #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) |
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164 | |
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165 | int sysctl_handle_int(SYSCTL_HANDLER_ARGS); |
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166 | int sysctl_handle_long(SYSCTL_HANDLER_ARGS); |
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167 | int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS); |
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168 | int sysctl_handle_string(SYSCTL_HANDLER_ARGS); |
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169 | int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); |
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170 | |
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171 | /* |
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172 | * These functions are used to add/remove an oid from the mib. |
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173 | */ |
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174 | void sysctl_register_oid(struct sysctl_oid *oidp); |
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175 | void sysctl_unregister_oid(struct sysctl_oid *oidp); |
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176 | |
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177 | /* Declare a static oid to allow child oids to be added to it. */ |
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178 | #define SYSCTL_DECL(name) \ |
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179 | extern struct sysctl_oid_list sysctl_##name##_children |
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180 | |
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181 | /* Hide these in macros */ |
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182 | #define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \ |
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183 | (oid_ptr)->oid_arg1 |
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184 | #define SYSCTL_CHILDREN_SET(oid_ptr, val) \ |
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185 | (oid_ptr)->oid_arg1 = (val); |
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186 | #define SYSCTL_STATIC_CHILDREN(oid_name) \ |
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187 | (&sysctl_##oid_name##_children) |
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188 | |
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189 | /* === Structs and macros related to context handling === */ |
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190 | |
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191 | /* All dynamically created sysctls can be tracked in a context list. */ |
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192 | struct sysctl_ctx_entry { |
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193 | struct sysctl_oid *entry; |
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194 | TAILQ_ENTRY(sysctl_ctx_entry) link; |
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195 | }; |
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196 | |
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197 | TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); |
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198 | |
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199 | #define SYSCTL_NODE_CHILDREN(parent, name) \ |
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200 | sysctl_##parent##_##name##_children |
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201 | |
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202 | /* This constructs a "raw" MIB oid. */ |
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203 | #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ |
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204 | static struct sysctl_oid sysctl__##parent##_##name = { \ |
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205 | &sysctl_##parent##_children, { 0 }, \ |
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206 | nbr, kind, a1, a2, #name, handler, fmt, 0, descr }; \ |
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207 | DATA_SET(sysctl_set, sysctl__##parent##_##name) |
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208 | |
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209 | #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ |
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210 | sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) |
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211 | |
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212 | /* This constructs a node from which other oids can hang. */ |
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213 | #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ |
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214 | struct sysctl_oid_list SYSCTL_NODE_CHILDREN(parent, name); \ |
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215 | SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|(access), \ |
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216 | (void*)&SYSCTL_NODE_CHILDREN(parent, name), 0, handler, \ |
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217 | "N", descr) |
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218 | |
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219 | #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ |
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220 | sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ |
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221 | 0, 0, handler, "N", descr) |
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222 | |
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223 | /* Oid for a string. len can be 0 to indicate '\0' termination. */ |
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224 | #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ |
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225 | SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ |
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226 | arg, len, sysctl_handle_string, "A", descr) |
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227 | |
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228 | #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ |
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229 | sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ |
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230 | arg, len, sysctl_handle_string, "A", descr) |
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231 | |
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232 | /* Oid for an int. If ptr is NULL, val is returned. */ |
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233 | #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ |
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234 | SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|(access), \ |
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235 | ptr, val, sysctl_handle_int, "I", descr) |
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236 | |
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237 | #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ |
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238 | sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|(access), \ |
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239 | ptr, val, sysctl_handle_int, "I", descr) |
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240 | |
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241 | /* Oid for an unsigned int. If ptr is NULL, val is returned. */ |
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242 | #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ |
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243 | SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|(access), \ |
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244 | ptr, val, sysctl_handle_int, "IU", descr) |
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245 | |
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246 | #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ |
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247 | sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|(access), \ |
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248 | ptr, val, sysctl_handle_int, "IU", descr) |
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249 | |
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250 | /* Oid for a long. The pointer must be non NULL. */ |
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251 | #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ |
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252 | SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|(access), \ |
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253 | ptr, val, sysctl_handle_long, "L", descr) |
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254 | |
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255 | #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ |
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256 | sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|(access), \ |
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257 | ptr, 0, sysctl_handle_long, "L", descr) |
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258 | |
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259 | /* Oid for an unsigned long. The pointer must be non NULL. */ |
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260 | #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ |
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261 | SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|(access), \ |
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262 | ptr, val, sysctl_handle_long, "LU", descr) |
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263 | |
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264 | #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ |
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265 | sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|(access), \ |
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266 | ptr, 0, sysctl_handle_long, "LU", descr) |
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267 | |
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268 | /* Oid for an opaque object. Specified by a pointer and a length. */ |
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269 | #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ |
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270 | SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ |
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271 | ptr, len, sysctl_handle_opaque, fmt, descr) |
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272 | |
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273 | #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\ |
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274 | sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ |
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275 | ptr, len, sysctl_handle_opaque, fmt, descr) |
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276 | |
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277 | /* Oid for a struct. Specified by a pointer and a type. */ |
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278 | #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ |
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279 | SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ |
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280 | ptr, sizeof(struct type), sysctl_handle_opaque, \ |
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281 | "S," #type, descr) |
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282 | |
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283 | #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ |
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284 | sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ |
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285 | ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr) |
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286 | |
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287 | /* Oid for a procedure. Specified by a pointer and an arg. */ |
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288 | #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ |
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289 | SYSCTL_OID(parent, nbr, name, (access), \ |
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290 | ptr, arg, handler, fmt, descr) |
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291 | |
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292 | #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ |
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293 | sysctl_add_oid(ctx, parent, nbr, name, (access), \ |
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294 | ptr, arg, handler, fmt, descr) |
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295 | |
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296 | #endif /* _KERNEL */ |
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297 | |
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298 | /* |
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299 | * Top-level identifiers |
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300 | */ |
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301 | #define CTL_UNSPEC 0 /* unused */ |
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302 | #define CTL_KERN 1 /* "high kernel": proc, limits */ |
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303 | #define CTL_VM 2 /* virtual memory */ |
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304 | #define CTL_VFS 3 /* filesystem, mount type is next */ |
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305 | #define CTL_NET 4 /* network, see socket.h */ |
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306 | #define CTL_DEBUG 5 /* debugging parameters */ |
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307 | #define CTL_HW 6 /* generic cpu/io */ |
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308 | #define CTL_MACHDEP 7 /* machine dependent */ |
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309 | #define CTL_USER 8 /* user-level */ |
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310 | #define CTL_P1003_1B 9 /* POSIX 1003.1B */ |
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311 | #define CTL_MAXID 10 /* number of valid top-level ids */ |
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312 | |
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313 | #define CTL_NAMES { \ |
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314 | { 0, 0 }, \ |
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315 | { "kern", CTLTYPE_NODE }, \ |
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316 | { "vm", CTLTYPE_NODE }, \ |
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317 | { "vfs", CTLTYPE_NODE }, \ |
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318 | { "net", CTLTYPE_NODE }, \ |
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319 | { "debug", CTLTYPE_NODE }, \ |
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320 | { "hw", CTLTYPE_NODE }, \ |
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321 | { "machdep", CTLTYPE_NODE }, \ |
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322 | { "user", CTLTYPE_NODE }, \ |
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323 | { "p1003_1b", CTLTYPE_NODE }, \ |
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324 | } |
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325 | |
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326 | /* |
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327 | * CTL_KERN identifiers |
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328 | */ |
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329 | #define KERN_OSTYPE 1 /* string: system version */ |
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330 | #define KERN_OSRELEASE 2 /* string: system release */ |
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331 | #define KERN_OSREV 3 /* int: system revision */ |
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332 | #define KERN_VERSION 4 /* string: compile time info */ |
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333 | #define KERN_MAXVNODES 5 /* int: max vnodes */ |
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334 | #define KERN_MAXPROC 6 /* int: max processes */ |
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335 | #define KERN_MAXFILES 7 /* int: max open files */ |
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336 | #define KERN_ARGMAX 8 /* int: max arguments to exec */ |
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337 | #define KERN_SECURELVL 9 /* int: system security level */ |
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338 | #define KERN_HOSTNAME 10 /* string: hostname */ |
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339 | #define KERN_HOSTID 11 /* int: host identifier */ |
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340 | #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ |
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341 | #define KERN_VNODE 13 /* struct: vnode structures */ |
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342 | #define KERN_PROC 14 /* struct: process entries */ |
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343 | #define KERN_FILE 15 /* struct: file entries */ |
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344 | #define KERN_PROF 16 /* node: kernel profiling info */ |
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345 | #define KERN_POSIX1 17 /* int: POSIX.1 version */ |
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346 | #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ |
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347 | #define KERN_JOB_CONTROL 19 /* int: is job control available */ |
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348 | #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ |
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349 | #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ |
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350 | #define KERN_NISDOMAINNAME 22 /* string: YP domain name */ |
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351 | #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ |
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352 | #define KERN_OSRELDATE 24 /* int: kernel release date */ |
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353 | #define KERN_NTP_PLL 25 /* node: NTP PLL control */ |
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354 | #define KERN_BOOTFILE 26 /* string: name of booted kernel */ |
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355 | #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ |
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356 | #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ |
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357 | #define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */ |
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358 | #define KERN_IPC 30 /* node: anything related to IPC */ |
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359 | #define KERN_DUMMY 31 /* unused */ |
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360 | #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ |
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361 | #define KERN_USRSTACK 33 /* int: address of USRSTACK */ |
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362 | #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ |
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363 | #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ |
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364 | #define KERN_MAXID 36 /* number of valid kern ids */ |
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365 | |
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366 | #define CTL_KERN_NAMES { \ |
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367 | { 0, 0 }, \ |
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368 | { "ostype", CTLTYPE_STRING }, \ |
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369 | { "osrelease", CTLTYPE_STRING }, \ |
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370 | { "osrevision", CTLTYPE_INT }, \ |
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371 | { "version", CTLTYPE_STRING }, \ |
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372 | { "maxvnodes", CTLTYPE_INT }, \ |
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373 | { "maxproc", CTLTYPE_INT }, \ |
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374 | { "maxfiles", CTLTYPE_INT }, \ |
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375 | { "argmax", CTLTYPE_INT }, \ |
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376 | { "securelevel", CTLTYPE_INT }, \ |
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377 | { "hostname", CTLTYPE_STRING }, \ |
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378 | { "hostid", CTLTYPE_UINT }, \ |
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379 | { "clockrate", CTLTYPE_STRUCT }, \ |
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380 | { "vnode", CTLTYPE_STRUCT }, \ |
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381 | { "proc", CTLTYPE_STRUCT }, \ |
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382 | { "file", CTLTYPE_STRUCT }, \ |
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383 | { "profiling", CTLTYPE_NODE }, \ |
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384 | { "posix1version", CTLTYPE_INT }, \ |
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385 | { "ngroups", CTLTYPE_INT }, \ |
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386 | { "job_control", CTLTYPE_INT }, \ |
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387 | { "saved_ids", CTLTYPE_INT }, \ |
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388 | { "boottime", CTLTYPE_STRUCT }, \ |
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389 | { "nisdomainname", CTLTYPE_STRING }, \ |
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390 | { "update", CTLTYPE_INT }, \ |
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391 | { "osreldate", CTLTYPE_INT }, \ |
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392 | { "ntp_pll", CTLTYPE_NODE }, \ |
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393 | { "bootfile", CTLTYPE_STRING }, \ |
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394 | { "maxfilesperproc", CTLTYPE_INT }, \ |
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395 | { "maxprocperuid", CTLTYPE_INT }, \ |
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396 | { "ipc", CTLTYPE_NODE }, \ |
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397 | { "dummy", CTLTYPE_INT }, \ |
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398 | { "ps_strings", CTLTYPE_INT }, \ |
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399 | { "usrstack", CTLTYPE_INT }, \ |
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400 | { "logsigexit", CTLTYPE_INT }, \ |
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401 | { "iov_max", CTLTYPE_INT }, \ |
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402 | } |
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403 | |
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404 | /* |
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405 | * CTL_VFS identifiers |
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406 | */ |
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407 | #define CTL_VFS_NAMES { \ |
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408 | { "vfsconf", CTLTYPE_STRUCT }, \ |
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409 | } |
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410 | |
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411 | /* |
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412 | * KERN_PROC subtypes |
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413 | */ |
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414 | #define KERN_PROC_ALL 0 /* everything */ |
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415 | #define KERN_PROC_PID 1 /* by process id */ |
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416 | #define KERN_PROC_PGRP 2 /* by process group id */ |
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417 | #define KERN_PROC_SESSION 3 /* by session of pid */ |
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418 | #define KERN_PROC_TTY 4 /* by controlling tty */ |
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419 | #define KERN_PROC_UID 5 /* by effective uid */ |
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420 | #define KERN_PROC_RUID 6 /* by real uid */ |
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421 | #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ |
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422 | #define KERN_PROC_PROC 8 /* only return procs */ |
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423 | #define KERN_PROC_SV_NAME 9 /* get syscall vector name */ |
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424 | #define KERN_PROC_RGID 10 /* by real group id */ |
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425 | #define KERN_PROC_GID 11 /* by effective group id */ |
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426 | #define KERN_PROC_INC_THREAD 0x10 /* |
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427 | * modifier for pid, pgrp, tty, |
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428 | * uid, ruid, gid, rgid and proc |
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429 | */ |
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430 | |
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431 | /* |
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432 | * KERN_IPC identifiers |
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433 | */ |
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434 | #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ |
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435 | #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ |
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436 | #define KIPC_SOMAXCONN 3 /* int: max length of connection q */ |
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437 | #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ |
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438 | #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ |
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439 | #define KIPC_MAX_HDR 6 /* int: max total length of headers */ |
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440 | #define KIPC_MAX_DATALEN 7 /* int: max length of data? */ |
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441 | |
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442 | /* |
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443 | * CTL_HW identifiers |
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444 | */ |
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445 | #define HW_MACHINE 1 /* string: machine class */ |
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446 | #define HW_MODEL 2 /* string: specific machine model */ |
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447 | #define HW_NCPU 3 /* int: number of cpus */ |
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448 | #define HW_BYTEORDER 4 /* int: machine byte order */ |
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449 | #define HW_PHYSMEM 5 /* int: total memory */ |
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450 | #define HW_USERMEM 6 /* int: non-kernel memory */ |
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451 | #define HW_PAGESIZE 7 /* int: software page size */ |
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452 | #define HW_DISKNAMES 8 /* strings: disk drive names */ |
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453 | #define HW_DISKSTATS 9 /* struct: diskstats[] */ |
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454 | #define HW_FLOATINGPT 10 /* int: has HW floating point? */ |
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455 | #define HW_MACHINE_ARCH 11 /* string: machine architecture */ |
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456 | #define HW_MAXID 12 /* number of valid hw ids */ |
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457 | |
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458 | #define CTL_HW_NAMES { \ |
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459 | { 0, 0 }, \ |
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460 | { "machine", CTLTYPE_STRING }, \ |
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461 | { "model", CTLTYPE_STRING }, \ |
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462 | { "ncpu", CTLTYPE_INT }, \ |
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463 | { "byteorder", CTLTYPE_INT }, \ |
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464 | { "physmem", CTLTYPE_ULONG }, \ |
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465 | { "usermem", CTLTYPE_ULONG }, \ |
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466 | { "pagesize", CTLTYPE_INT }, \ |
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467 | { "disknames", CTLTYPE_STRUCT }, \ |
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468 | { "diskstats", CTLTYPE_STRUCT }, \ |
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469 | { "floatingpoint", CTLTYPE_INT }, \ |
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470 | } |
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471 | |
---|
472 | /* |
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473 | * CTL_USER definitions |
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474 | */ |
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475 | #define USER_CS_PATH 1 /* string: _CS_PATH */ |
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476 | #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ |
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477 | #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ |
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478 | #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ |
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479 | #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ |
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480 | #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ |
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481 | #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ |
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482 | #define USER_LINE_MAX 8 /* int: LINE_MAX */ |
---|
483 | #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ |
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484 | #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ |
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485 | #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ |
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486 | #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ |
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487 | #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ |
---|
488 | #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ |
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489 | #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ |
---|
490 | #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ |
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491 | #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ |
---|
492 | #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ |
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493 | #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ |
---|
494 | #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ |
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495 | #define USER_MAXID 21 /* number of valid user ids */ |
---|
496 | |
---|
497 | #define CTL_USER_NAMES { \ |
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498 | { 0, 0 }, \ |
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499 | { "cs_path", CTLTYPE_STRING }, \ |
---|
500 | { "bc_base_max", CTLTYPE_INT }, \ |
---|
501 | { "bc_dim_max", CTLTYPE_INT }, \ |
---|
502 | { "bc_scale_max", CTLTYPE_INT }, \ |
---|
503 | { "bc_string_max", CTLTYPE_INT }, \ |
---|
504 | { "coll_weights_max", CTLTYPE_INT }, \ |
---|
505 | { "expr_nest_max", CTLTYPE_INT }, \ |
---|
506 | { "line_max", CTLTYPE_INT }, \ |
---|
507 | { "re_dup_max", CTLTYPE_INT }, \ |
---|
508 | { "posix2_version", CTLTYPE_INT }, \ |
---|
509 | { "posix2_c_bind", CTLTYPE_INT }, \ |
---|
510 | { "posix2_c_dev", CTLTYPE_INT }, \ |
---|
511 | { "posix2_char_term", CTLTYPE_INT }, \ |
---|
512 | { "posix2_fort_dev", CTLTYPE_INT }, \ |
---|
513 | { "posix2_fort_run", CTLTYPE_INT }, \ |
---|
514 | { "posix2_localedef", CTLTYPE_INT }, \ |
---|
515 | { "posix2_sw_dev", CTLTYPE_INT }, \ |
---|
516 | { "posix2_upe", CTLTYPE_INT }, \ |
---|
517 | { "stream_max", CTLTYPE_INT }, \ |
---|
518 | { "tzname_max", CTLTYPE_INT }, \ |
---|
519 | } |
---|
520 | |
---|
521 | #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ |
---|
522 | #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ |
---|
523 | #define CTL_P1003_1B_MEMLOCK 3 /* boolean */ |
---|
524 | #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ |
---|
525 | #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ |
---|
526 | #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ |
---|
527 | #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ |
---|
528 | #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ |
---|
529 | #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ |
---|
530 | #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ |
---|
531 | #define CTL_P1003_1B_FSYNC 11 /* boolean */ |
---|
532 | #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ |
---|
533 | #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ |
---|
534 | #define CTL_P1003_1B_TIMERS 14 /* boolean */ |
---|
535 | #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ |
---|
536 | #define CTL_P1003_1B_AIO_MAX 16 /* int */ |
---|
537 | #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ |
---|
538 | #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ |
---|
539 | #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ |
---|
540 | #define CTL_P1003_1B_PAGESIZE 20 /* int */ |
---|
541 | #define CTL_P1003_1B_RTSIG_MAX 21 /* int */ |
---|
542 | #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ |
---|
543 | #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ |
---|
544 | #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ |
---|
545 | #define CTL_P1003_1B_TIMER_MAX 25 /* int */ |
---|
546 | |
---|
547 | #define CTL_P1003_1B_MAXID 26 |
---|
548 | |
---|
549 | #define CTL_P1003_1B_NAMES { \ |
---|
550 | { 0, 0 }, \ |
---|
551 | { "asynchronous_io", CTLTYPE_INT }, \ |
---|
552 | { "mapped_files", CTLTYPE_INT }, \ |
---|
553 | { "memlock", CTLTYPE_INT }, \ |
---|
554 | { "memlock_range", CTLTYPE_INT }, \ |
---|
555 | { "memory_protection", CTLTYPE_INT }, \ |
---|
556 | { "message_passing", CTLTYPE_INT }, \ |
---|
557 | { "prioritized_io", CTLTYPE_INT }, \ |
---|
558 | { "priority_scheduling", CTLTYPE_INT }, \ |
---|
559 | { "realtime_signals", CTLTYPE_INT }, \ |
---|
560 | { "semaphores", CTLTYPE_INT }, \ |
---|
561 | { "fsync", CTLTYPE_INT }, \ |
---|
562 | { "shared_memory_objects", CTLTYPE_INT }, \ |
---|
563 | { "synchronized_io", CTLTYPE_INT }, \ |
---|
564 | { "timers", CTLTYPE_INT }, \ |
---|
565 | { "aio_listio_max", CTLTYPE_INT }, \ |
---|
566 | { "aio_max", CTLTYPE_INT }, \ |
---|
567 | { "aio_prio_delta_max", CTLTYPE_INT }, \ |
---|
568 | { "delaytimer_max", CTLTYPE_INT }, \ |
---|
569 | { "mq_open_max", CTLTYPE_INT }, \ |
---|
570 | { "pagesize", CTLTYPE_INT }, \ |
---|
571 | { "rtsig_max", CTLTYPE_INT }, \ |
---|
572 | { "nsems_max", CTLTYPE_INT }, \ |
---|
573 | { "sem_value_max", CTLTYPE_INT }, \ |
---|
574 | { "sigqueue_max", CTLTYPE_INT }, \ |
---|
575 | { "timer_max", CTLTYPE_INT }, \ |
---|
576 | } |
---|
577 | |
---|
578 | #ifdef _KERNEL |
---|
579 | |
---|
580 | /* |
---|
581 | * Declare some common oids. |
---|
582 | */ |
---|
583 | extern struct sysctl_oid_list sysctl__children; |
---|
584 | SYSCTL_DECL(_kern); |
---|
585 | SYSCTL_DECL(_sysctl); |
---|
586 | SYSCTL_DECL(_vm); |
---|
587 | SYSCTL_DECL(_vfs); |
---|
588 | SYSCTL_DECL(_net); |
---|
589 | SYSCTL_DECL(_debug); |
---|
590 | SYSCTL_DECL(_debug_sizeof); |
---|
591 | SYSCTL_DECL(_hw); |
---|
592 | SYSCTL_DECL(_machdep); |
---|
593 | SYSCTL_DECL(_user); |
---|
594 | SYSCTL_DECL(_compat); |
---|
595 | |
---|
596 | extern char machine[]; |
---|
597 | extern char osrelease[]; |
---|
598 | extern char ostype[]; |
---|
599 | extern char kern_ident[]; |
---|
600 | |
---|
601 | /* Dynamic oid handling */ |
---|
602 | struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, |
---|
603 | struct sysctl_oid_list *parent, int nbr, const char *name, |
---|
604 | int kind, void *arg1, int arg2, |
---|
605 | int (*handler) (SYSCTL_HANDLER_ARGS), |
---|
606 | const char *fmt, const char *descr); |
---|
607 | int sysctl_move_oid(struct sysctl_oid *oidp, |
---|
608 | struct sysctl_oid_list *parent); |
---|
609 | int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); |
---|
610 | int sysctl_ctx_init(struct sysctl_ctx_list *clist); |
---|
611 | int sysctl_ctx_free(struct sysctl_ctx_list *clist); |
---|
612 | struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, |
---|
613 | struct sysctl_oid *oidp); |
---|
614 | struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, |
---|
615 | struct sysctl_oid *oidp); |
---|
616 | int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, |
---|
617 | struct sysctl_oid *oidp); |
---|
618 | |
---|
619 | int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, |
---|
620 | size_t *oldlenp, void *new, size_t newlen, |
---|
621 | size_t *retval); |
---|
622 | int kernel_sysctlbyname(struct thread *td, char *name, |
---|
623 | void *old, size_t *oldlenp, void *new, size_t newlen, |
---|
624 | size_t *retval); |
---|
625 | int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, |
---|
626 | size_t *oldlenp, int inkernel, void *new, size_t newlen, |
---|
627 | size_t *retval); |
---|
628 | int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, |
---|
629 | int *nindx, struct sysctl_req *req); |
---|
630 | int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); |
---|
631 | |
---|
632 | #else /* !_KERNEL */ |
---|
633 | #include <rtems/bsd/sys/cdefs.h> |
---|
634 | |
---|
635 | __BEGIN_DECLS |
---|
636 | int sysctl(int *, u_int, void *, size_t *, void *, size_t); |
---|
637 | int sysctlbyname(const char *, void *, size_t *, void *, size_t); |
---|
638 | int sysctlnametomib(const char *, int *, size_t *); |
---|
639 | __END_DECLS |
---|
640 | #endif /* _KERNEL */ |
---|
641 | |
---|
642 | #endif /* !_SYS_SYSCTL_H_ */ |
---|