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 | * 3. All advertising materials mentioning features or use of this software |
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17 | * must display the following acknowledgement: |
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18 | * This product includes software developed by the University of |
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19 | * California, Berkeley and its contributors. |
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20 | * 4. Neither the name of the University nor the names of its contributors |
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21 | * may be used to endorse or promote products derived from this software |
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22 | * without specific prior written permission. |
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23 | * |
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24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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34 | * SUCH DAMAGE. |
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35 | * |
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36 | * @(#)sysctl.h 8.1 (Berkeley) 6/2/93 |
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37 | * $Id$ |
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38 | */ |
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39 | |
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40 | #ifndef _SYS_SYSCTL_H_ |
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41 | #define _SYS_SYSCTL_H_ |
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42 | |
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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 12 /* 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(1) 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 | |
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74 | #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ |
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75 | #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ |
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76 | #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) |
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77 | #define CTLFLAG_NOLOCK 0x20000000 /* XXX Don't Lock */ |
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78 | #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ |
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79 | |
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80 | /* |
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81 | * USE THIS instead of a hardwired number from the categories below |
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82 | * to get dynamically assigned sysctl entries using the linker-set |
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83 | * technology. This is the way nearly all new sysctl variables should |
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84 | * be implimented. |
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85 | * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); |
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86 | */ |
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87 | #define OID_AUTO (-1) |
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88 | |
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89 | #ifdef KERNEL |
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90 | #define SYSCTL_HANDLER_ARGS (struct sysctl_oid *oidp, void *arg1, int arg2, \ |
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91 | struct sysctl_req *req) |
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92 | |
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93 | /* |
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94 | * This describes the access space for a sysctl request. This is needed |
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95 | * so that we can use the interface from the kernel or from user-space. |
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96 | */ |
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97 | struct sysctl_req { |
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98 | struct proc *p; |
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99 | int lock; |
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100 | void *oldptr; |
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101 | int oldlen; |
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102 | int oldidx; |
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103 | int (*oldfunc)(struct sysctl_req *, const void *, int); |
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104 | void *newptr; |
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105 | int newlen; |
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106 | int newidx; |
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107 | int (*newfunc)(struct sysctl_req *, void *, int); |
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108 | }; |
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109 | |
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110 | /* |
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111 | * This describes one "oid" in the MIB tree. Potentially more nodes can |
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112 | * be hidden behind it, expanded by the handler. |
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113 | */ |
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114 | struct sysctl_oid { |
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115 | int oid_number; |
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116 | int oid_kind; |
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117 | void *oid_arg1; |
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118 | int oid_arg2; |
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119 | const char *oid_name; |
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120 | int (*oid_handler) SYSCTL_HANDLER_ARGS; |
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121 | const char *oid_fmt; |
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122 | }; |
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123 | |
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124 | #define SYSCTL_IN(r, p, l) |
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125 | #define SYSCTL_OUT(r, p, l) |
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126 | |
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127 | int sysctl_handle_int SYSCTL_HANDLER_ARGS; |
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128 | int sysctl_handle_string SYSCTL_HANDLER_ARGS; |
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129 | int sysctl_handle_opaque SYSCTL_HANDLER_ARGS; |
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130 | |
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131 | /* This is the "raw" function for a mib-oid */ |
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132 | #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) |
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133 | |
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134 | /* This makes a node from which other oids can hang */ |
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135 | #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) |
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136 | |
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137 | /* This is a string len can be 0 to indicate '\0' termination */ |
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138 | #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) |
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139 | |
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140 | /* This is a integer, if ptr is NULL, val is returned */ |
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141 | #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) |
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142 | |
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143 | /* This is anything, specified by a pointer and a lenth */ |
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144 | #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) |
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145 | |
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146 | /* This is a struct, specified by a pointer and type */ |
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147 | #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) |
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148 | |
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149 | /* Needs a proc. Specify by pointer and arg */ |
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150 | #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) |
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151 | #endif /* KERNEL */ |
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152 | |
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153 | /* |
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154 | * Top-level identifiers |
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155 | */ |
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156 | #define CTL_UNSPEC 0 /* unused */ |
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157 | #define CTL_KERN 1 /* "high kernel": proc, limits */ |
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158 | #define CTL_VM 2 /* virtual memory */ |
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159 | #define CTL_VFS 3 /* file system, mount type is next */ |
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160 | #define CTL_NET 4 /* network, see socket.h */ |
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161 | #define CTL_DEBUG 5 /* debugging parameters */ |
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162 | #define CTL_HW 6 /* generic cpu/io */ |
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163 | #define CTL_MACHDEP 7 /* machine dependent */ |
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164 | #define CTL_USER 8 /* user-level */ |
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165 | #define CTL_MAXID 9 /* number of valid top-level ids */ |
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166 | |
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167 | #define CTL_NAMES { \ |
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168 | { 0, 0 }, \ |
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169 | { "kern", CTLTYPE_NODE }, \ |
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170 | { "vm", CTLTYPE_NODE }, \ |
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171 | { "vfs", CTLTYPE_NODE }, \ |
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172 | { "net", CTLTYPE_NODE }, \ |
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173 | { "debug", CTLTYPE_NODE }, \ |
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174 | { "hw", CTLTYPE_NODE }, \ |
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175 | { "machdep", CTLTYPE_NODE }, \ |
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176 | { "user", CTLTYPE_NODE }, \ |
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177 | } |
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178 | |
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179 | /* |
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180 | * CTL_KERN identifiers |
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181 | */ |
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182 | #define KERN_OSTYPE 1 /* string: system version */ |
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183 | #define KERN_OSRELEASE 2 /* string: system release */ |
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184 | #define KERN_OSREV 3 /* int: system revision */ |
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185 | #define KERN_VERSION 4 /* string: compile time info */ |
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186 | #define KERN_MAXVNODES 5 /* int: max vnodes */ |
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187 | #define KERN_MAXPROC 6 /* int: max processes */ |
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188 | #define KERN_MAXFILES 7 /* int: max open files */ |
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189 | #define KERN_ARGMAX 8 /* int: max arguments to exec */ |
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190 | #define KERN_SECURELVL 9 /* int: system security level */ |
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191 | #define KERN_HOSTNAME 10 /* string: hostname */ |
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192 | #define KERN_HOSTID 11 /* int: host identifier */ |
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193 | #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ |
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194 | #define KERN_VNODE 13 /* struct: vnode structures */ |
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195 | #define KERN_PROC 14 /* struct: process entries */ |
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196 | #define KERN_FILE 15 /* struct: file entries */ |
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197 | #define KERN_PROF 16 /* node: kernel profiling info */ |
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198 | #define KERN_POSIX1 17 /* int: POSIX.1 version */ |
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199 | #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ |
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200 | #define KERN_JOB_CONTROL 19 /* int: is job control available */ |
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201 | #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ |
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202 | #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ |
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203 | #define KERN_NISDOMAINNAME 22 /* string: YP domain name */ |
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204 | #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ |
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205 | #define KERN_OSRELDATE 24 /* int: OS release date */ |
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206 | #define KERN_NTP_PLL 25 /* node: NTP PLL control */ |
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207 | #define KERN_BOOTFILE 26 /* string: name of booted kernel */ |
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208 | #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ |
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209 | #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ |
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210 | #define KERN_DUMPDEV 29 /* dev_t: device to dump on */ |
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211 | #define KERN_SOMAXCONN 30 /* int: max connections in listen q */ |
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212 | #define KERN_MAXSOCKBUF 31 /* int: max size of a socket buffer */ |
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213 | #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ |
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214 | #define KERN_USRSTACK 33 /* int: address of USRSTACK */ |
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215 | #define KERN_MAXID 34 /* number of valid kern ids */ |
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216 | |
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217 | #define CTL_KERN_NAMES { \ |
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218 | { 0, 0 }, \ |
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219 | { "ostype", CTLTYPE_STRING }, \ |
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220 | { "osrelease", CTLTYPE_STRING }, \ |
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221 | { "osrevision", CTLTYPE_INT }, \ |
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222 | { "version", CTLTYPE_STRING }, \ |
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223 | { "maxvnodes", CTLTYPE_INT }, \ |
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224 | { "maxproc", CTLTYPE_INT }, \ |
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225 | { "maxfiles", CTLTYPE_INT }, \ |
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226 | { "argmax", CTLTYPE_INT }, \ |
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227 | { "securelevel", CTLTYPE_INT }, \ |
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228 | { "hostname", CTLTYPE_STRING }, \ |
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229 | { "hostid", CTLTYPE_INT }, \ |
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230 | { "clockrate", CTLTYPE_STRUCT }, \ |
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231 | { "vnode", CTLTYPE_STRUCT }, \ |
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232 | { "proc", CTLTYPE_STRUCT }, \ |
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233 | { "file", CTLTYPE_STRUCT }, \ |
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234 | { "profiling", CTLTYPE_NODE }, \ |
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235 | { "posix1version", CTLTYPE_INT }, \ |
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236 | { "ngroups", CTLTYPE_INT }, \ |
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237 | { "job_control", CTLTYPE_INT }, \ |
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238 | { "saved_ids", CTLTYPE_INT }, \ |
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239 | { "boottime", CTLTYPE_STRUCT }, \ |
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240 | { "nisdomainname", CTLTYPE_STRING }, \ |
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241 | { "update", CTLTYPE_INT }, \ |
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242 | { "osreldate", CTLTYPE_INT }, \ |
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243 | { "ntp_pll", CTLTYPE_NODE }, \ |
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244 | { "bootfile", CTLTYPE_STRING }, \ |
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245 | { "maxfilesperproc", CTLTYPE_INT }, \ |
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246 | { "maxprocperuid", CTLTYPE_INT }, \ |
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247 | { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \ |
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248 | { "somaxconn", CTLTYPE_INT }, \ |
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249 | { "maxsockbuf", CTLTYPE_INT }, \ |
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250 | { "ps_strings", CTLTYPE_INT }, \ |
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251 | { "usrstack", CTLTYPE_INT }, \ |
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252 | } |
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253 | |
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254 | /* |
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255 | * CTL_VFS identifiers |
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256 | */ |
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257 | #define VFS_VFSCONF 0 /* get configured filesystems */ |
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258 | #define VFS_MAXID 1 /* number of items */ |
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259 | |
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260 | #define CTL_VFS_NAMES { \ |
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261 | { "vfsconf", CTLTYPE_STRUCT }, \ |
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262 | } |
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263 | |
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264 | /* |
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265 | * KERN_PROC subtypes |
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266 | */ |
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267 | #define KERN_PROC_ALL 0 /* everything */ |
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268 | #define KERN_PROC_PID 1 /* by process id */ |
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269 | #define KERN_PROC_PGRP 2 /* by process group id */ |
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270 | #define KERN_PROC_SESSION 3 /* by session of pid */ |
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271 | #define KERN_PROC_TTY 4 /* by controlling tty */ |
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272 | #define KERN_PROC_UID 5 /* by effective uid */ |
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273 | #define KERN_PROC_RUID 6 /* by real uid */ |
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274 | |
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275 | /* |
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276 | * CTL_HW identifiers |
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277 | */ |
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278 | #define HW_MACHINE 1 /* string: machine class */ |
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279 | #define HW_MODEL 2 /* string: specific machine model */ |
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280 | #define HW_NCPU 3 /* int: number of cpus */ |
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281 | #define HW_BYTEORDER 4 /* int: machine byte order */ |
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282 | #define HW_PHYSMEM 5 /* int: total memory */ |
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283 | #define HW_USERMEM 6 /* int: non-kernel memory */ |
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284 | #define HW_PAGESIZE 7 /* int: software page size */ |
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285 | #define HW_DISKNAMES 8 /* strings: disk drive names */ |
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286 | #define HW_DISKSTATS 9 /* struct: diskstats[] */ |
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287 | #define HW_FLOATINGPT 10 /* int: has HW floating point? */ |
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288 | #define HW_MACHINE_ARCH 11 /* string: machine architecture */ |
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289 | #define HW_MAXID 12 /* number of valid hw ids */ |
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290 | |
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291 | #define CTL_HW_NAMES { \ |
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292 | { 0, 0 }, \ |
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293 | { "machine", CTLTYPE_STRING }, \ |
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294 | { "model", CTLTYPE_STRING }, \ |
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295 | { "ncpu", CTLTYPE_INT }, \ |
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296 | { "byteorder", CTLTYPE_INT }, \ |
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297 | { "physmem", CTLTYPE_INT }, \ |
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298 | { "usermem", CTLTYPE_INT }, \ |
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299 | { "pagesize", CTLTYPE_INT }, \ |
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300 | { "disknames", CTLTYPE_STRUCT }, \ |
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301 | { "diskstats", CTLTYPE_STRUCT }, \ |
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302 | { "floatingpoint", CTLTYPE_INT }, \ |
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303 | } |
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304 | |
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305 | /* |
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306 | * CTL_USER definitions |
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307 | */ |
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308 | #define USER_CS_PATH 1 /* string: _CS_PATH */ |
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309 | #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ |
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310 | #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ |
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311 | #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ |
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312 | #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ |
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313 | #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ |
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314 | #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ |
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315 | #define USER_LINE_MAX 8 /* int: LINE_MAX */ |
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316 | #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ |
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317 | #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ |
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318 | #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ |
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319 | #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ |
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320 | #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ |
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321 | #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ |
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322 | #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ |
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323 | #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ |
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324 | #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ |
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325 | #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ |
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326 | #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ |
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327 | #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ |
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328 | #define USER_MAXID 21 /* number of valid user ids */ |
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329 | |
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330 | #define CTL_USER_NAMES { \ |
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331 | { 0, 0 }, \ |
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332 | { "cs_path", CTLTYPE_STRING }, \ |
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333 | { "bc_base_max", CTLTYPE_INT }, \ |
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334 | { "bc_dim_max", CTLTYPE_INT }, \ |
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335 | { "bc_scale_max", CTLTYPE_INT }, \ |
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336 | { "bc_string_max", CTLTYPE_INT }, \ |
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337 | { "coll_weights_max", CTLTYPE_INT }, \ |
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338 | { "expr_nest_max", CTLTYPE_INT }, \ |
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339 | { "line_max", CTLTYPE_INT }, \ |
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340 | { "re_dup_max", CTLTYPE_INT }, \ |
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341 | { "posix2_version", CTLTYPE_INT }, \ |
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342 | { "posix2_c_bind", CTLTYPE_INT }, \ |
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343 | { "posix2_c_dev", CTLTYPE_INT }, \ |
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344 | { "posix2_char_term", CTLTYPE_INT }, \ |
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345 | { "posix2_fort_dev", CTLTYPE_INT }, \ |
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346 | { "posix2_fort_run", CTLTYPE_INT }, \ |
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347 | { "posix2_localedef", CTLTYPE_INT }, \ |
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348 | { "posix2_sw_dev", CTLTYPE_INT }, \ |
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349 | { "posix2_upe", CTLTYPE_INT }, \ |
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350 | { "stream_max", CTLTYPE_INT }, \ |
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351 | { "tzname_max", CTLTYPE_INT }, \ |
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352 | } |
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353 | |
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354 | #ifdef KERNEL |
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355 | |
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356 | extern char cpu_model[]; |
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357 | extern char machine[]; |
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358 | extern char osrelease[]; |
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359 | extern char ostype[]; |
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360 | |
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361 | int kernel_sysctl(struct proc *p, int *name, u_int namelen, void *old, size_t *oldlenp, void *new, size_t newlen, int *retval); |
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362 | int userland_sysctl(struct proc *p, int *name, u_int namelen, void *old, size_t *oldlenp, int inkernel, void *new, size_t newlen, int *retval); |
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363 | /* |
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364 | int sysctl_clockrate __P((char *, size_t*)); |
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365 | int sysctl_file __P((char *, size_t*)); |
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366 | int sysctl_doproc __P((int *, u_int, char *, size_t*)); |
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367 | int sysctl_doprof __P((int *, u_int, void *, size_t *, void *, size_t)); |
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368 | */ |
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369 | |
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370 | #else /* !KERNEL */ |
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371 | #include <sys/cdefs.h> |
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372 | |
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373 | __BEGIN_DECLS |
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374 | int sysctl __P((int *, u_int, void *, size_t *, void *, size_t)); |
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375 | int sysctlbyname __P((const char *, void *, size_t *, void *, size_t)); |
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376 | __END_DECLS |
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377 | #endif /* KERNEL */ |
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378 | |
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379 | #endif /* !_SYS_SYSCTL_H_ */ |
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