r3977 Final preparation before 0.18.5 release
[racktables] / inc / config.php
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b325120a 1<?php
e673ee24 2/*
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3 *
4 * This file used to hold a collection of constants, variables and arrays,
5 * which drived the way misc RackTables functions performed. Now most of
201056a2 6 * them have gone into the database, and there is a user interface
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7 * for changing them. This file now provides a couple of functions to
8 * access the new config storage.
9 *
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10 */
11
8d07e3e0 12
9c0b0016 13// Current code version is subject to change with each new release.
92ee2b01 14define ('CODE_VERSION', '0.18.5');
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15define ('CHAP_OBJTYPE', 1);
16define ('CHAP_PORTTYPE', 2);
e673ee24 17
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18$max_dict_key = array
19(
20 '0.17.0' => 988,
21 '0.17.1' => 988,
22 '0.17.2' => 1150,
70992855 23 '0.17.3' => 1150,
681f2138 24 '0.17.4' => 1150,
2803fbe6 25 '0.17.5' => 1322,
63811a09 26 '0.17.6' => 1326,
026a79ee 27 '0.17.7' => 1326,
ad9da675 28 '0.17.8' => 1334,
0e87ece7 29 '0.17.9' => 1334,
4b43f713 30 '0.17.10' => 1349,
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31 '0.17.11' => 1349,
32 '0.18.0' => 1349,
4eeadb79 33 '0.18.1' => 1352,
98cc6bd8 34 '0.18.2' => 1352,
0891c041 35 '0.18.3' => 1356,
ec523868 36 '0.18.4' => 1364,
9f4aaadc 37 '0.18.5' => 1369,
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38);
39
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40define ('TAGNAME_REGEXP', '/^[\p{L}0-9]([. _~-]?[\p{L}0-9])*$/u');
41define ('AUTOTAGNAME_REGEXP', '/^\$[\p{L}0-9]([. _~-]?[\p{L}0-9])*$/u');
05771508 42// The latter matches both SunOS and Linux-styled formats.
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43define ('RE_L2_IFCFG', '/^[0-9a-f]{1,2}(:[0-9a-f]{1,2}){5}$/i');
44define ('RE_L2_CISCO', '/^[0-9a-f]{4}(\.[0-9a-f]{4}){2}$/i');
c5553818 45define ('RE_L2_HUAWEI', '/^[0-9a-f]{4}(-[0-9a-f]{4}){2}$/i');
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46define ('RE_L2_SOLID', '/^[0-9a-f]{12}$/i');
47define ('RE_L2_IPCFG', '/^[0-9a-f]{2}(-[0-9a-f]{2}){5}$/i');
48define ('RE_L2_WWN_COLON', '/^[0-9a-f]{1,2}(:[0-9a-f]{1,2}){7}$/i');
49define ('RE_L2_WWN_HYPHEN', '/^[0-9a-f]{2}(-[0-9a-f]{2}){7}$/i');
50define ('RE_L2_WWN_SOLID', '/^[0-9a-f]{16}$/i');
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51define ('RE_IP4_ADDR', '#^[0-9]{1,3}(\.[0-9]{1,3}){3}$#');
52define ('RE_IP4_NET', '#^[0-9]{1,3}(\.[0-9]{1,3}){3}/[0-9]{1,2}$#');
52ce8bd7 53define ('E_8021Q_NOERROR', 0);
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54define ('E_8021Q_VERSION_CONFLICT', 101);
55define ('E_8021Q_PULL_REMOTE_ERROR', 102);
56define ('E_8021Q_PUSH_REMOTE_ERROR', 103);
5701baec 57define ('E_8021Q_SYNC_DISABLED', 104);
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58define ('VLAN_MIN_ID', 1);
59define ('VLAN_MAX_ID', 4094);
60define ('VLAN_DFL_ID', 1);
26131670 61
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62function loadConfigDefaults() {
63 global $configCache;
64 $configCache = loadConfigCache();
d108b098 65 if (!count ($configCache))
3a089a44 66 throw new RackTablesError ('Failed to load configuration from the database.', RackTablesError::INTERNAL);
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67 foreach ($configCache as $varname => &$row) {
68 $row['is_altered'] = 'no';
69 if ($row['vartype'] == 'uint') $row['varvalue'] = 0 + $row['varvalue'];
70 $row['defaultvalue'] = $row['varvalue'];
71 }
72}
73
74function alterConfigWithUserPreferences() {
75 global $configCache;
76 global $userConfigCache;
77 global $remote_username;
78 $userConfigCache = loadUserConfigCache($remote_username);
79 foreach($userConfigCache as $key => $row) {
80 if ($configCache[$key]['is_userdefined'] == 'yes') {
81 $configCache[$key]['varvalue'] = $row['varvalue'];
82 $configCache[$key]['is_altered'] = 'yes';
83 }
84 }
85}
86
87// Returns true if varname has a different value or varname is new
88function isConfigVarChanged($varname, $varvalue) {
89 global $configCache;
90 if (!isset ($configCache))
3a089a44 91 throw new RackTablesError ('configuration cache is unavailable', RackTablesError::INTERNAL);
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92 if ($varname == '')
93 throw new InvalidArgException('$varname', $varname, 'Empty variable name');
94 if (!isset ($configCache[$varname])) return true;
95 if ($configCache[$varname]['vartype'] == 'uint')
ed941e67 96 return $configCache[$varname]['varvalue'] !== 0 + $varvalue;
3540d15c 97 else
ed941e67 98 return $configCache[$varname]['varvalue'] !== $varvalue;
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99}
100
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101function getConfigVar ($varname = '')
102{
103 global $configCache;
104 // We assume the only point of cache init, and it is init.php. If it
105 // has failed, we don't retry loading.
106 if (!isset ($configCache))
3a089a44 107 throw new RackTablesError ('configuration cache is unavailable', RackTablesError::INTERNAL);
9c0b0016 108 if ($varname == '')
0cc24e9a 109 throw new InvalidArgException('$varname', $varname, 'Empty variable name');
9c0b0016 110 if (isset ($configCache[$varname]))
3540d15c 111 return $configCache[$varname]['varvalue'];
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112 return NULL;
113}
114
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115// In softfail mode die only on fatal errors, letting the user check
116// and resubmit his input.
117function setConfigVar ($varname = '', $varvalue = '', $softfail = FALSE)
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118{
119 global $configCache;
120 if (!isset ($configCache))
3a089a44 121 throw new RackTablesError ('configuration cache is unavailable', RackTablesError::INTERNAL);
59a83bd8 122 if (!strlen ($varname))
3a089a44 123 throw new InvalidRequestArgException('$varname', $varname, 'Empty variable name');
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124 // We don't operate on unknown data.
125 if (!isset ($configCache[$varname]))
3a089a44 126 throw new InvalidRequestArgException('$varname', $varname, "Don't know how to handle '${varname}'");
dc2f1801 127 if ($configCache[$varname]['is_hidden'] != 'no')
3a089a44 128 throw new InvalidRequestArgException('$varname', $varname, "'${varname}' is a system variable and cannot be changed by user.");
59a83bd8 129 if (!strlen ($varvalue) && $configCache[$varname]['emptyok'] != 'yes')
3a089a44 130 throw new InvalidRequestArgException('$varname', $varname, "'${varname}' is configured to take non-empty value. Perhaps there was a reason to do so.");
59a83bd8 131 if (strlen ($varvalue) && $configCache[$varname]['vartype'] == 'uint' && (!is_numeric ($varvalue) or $varvalue < 0 ))
3a089a44 132 throw new InvalidRequestArgException('$varname', $varname, "'${varname}' can accept UINT values only");
9c0b0016 133 // Update cache only if the changes went into DB.
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134 storeConfigVar ($varname, $varvalue);
135 $configCache[$varname]['varvalue'] = $varvalue;
136}
137
138function setUserConfigVar ($varname = '', $varvalue = '')
139{
140 global $configCache;
141 global $remote_username;
142 if (!isset ($configCache))
3a089a44 143 throw new RackTablesError ('configuration cache is unavailable', RackTablesError::INTERNAL);
3540d15c 144 if (!strlen ($varname))
3a089a44 145 throw new InvalidRequestArgException('$varname', $varname, 'Empty variable name');
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146 // We don't operate on unknown data.
147 if (!isset ($configCache[$varname]))
3a089a44 148 throw new InvalidRequestArgException('$varname', $varname, "Don't know how to handle '${varname}'");
3540d15c 149 if ($configCache[$varname]['is_userdefined'] != 'yes')
3a089a44 150 throw new InvalidRequestArgException('$varname', $varname, "'${varname}' cannot be changed by user.");
3540d15c 151 if ($configCache[$varname]['is_hidden'] != 'no')
3a089a44 152 throw new InvalidRequestArgException('$varname', $varname, "'${varname}' is a system variable and cannot be changed by user.");
3540d15c 153 if (!strlen ($varvalue) && $configCache[$varname]['emptyok'] != 'yes')
3a089a44 154 throw new InvalidRequestArgException('$varname', $varname, "'${varname}' is configured to take non-empty value. Perhaps there was a reason to do so.");
3540d15c 155 if (strlen ($varvalue) && $configCache[$varname]['vartype'] == 'uint' && (!is_numeric ($varvalue) or $varvalue < 0 ))
3a089a44 156 throw new InvalidRequestArgException('$varname', $varname, "'${varname}' can accept UINT values only");
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157 // Update cache only if the changes went into DB.
158 storeUserConfigVar ($remote_username, $varname, $varvalue);
159 $configCache[$varname]['varvalue'] = $varvalue;
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160}
161
162function resetUserConfigVar ($varname = '')
163{
164 global $configCache;
165 global $remote_username;
166 if (!isset ($configCache))
3a089a44 167 throw new RackTablesError ('configuration cache is unavailable', RackTablesError::INTERNAL);
3540d15c 168 if (!strlen ($varname))
3a089a44 169 throw new InvalidRequestArgException('$varname', $varname, 'Empty variable name');
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170 // We don't operate on unknown data.
171 if (!isset ($configCache[$varname]))
3a089a44 172 throw new InvalidRequestArgException('$varname', $varname, "Don't know how to handle '${varname}'");
3540d15c 173 if ($configCache[$varname]['is_userdefined'] != 'yes')
3a089a44 174 throw new InvalidRequestArgException('$varname', $varname, "'${varname}' cannot be changed by user.");
3540d15c 175 if ($configCache[$varname]['is_hidden'] != 'no')
3a089a44 176 throw new InvalidRequestArgException('$varname', $varname, "'${varname}' is a system variable and cannot be changed by user.");
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177 // Update cache only if the changes went into DB.
178 deleteUserConfigVar ($remote_username, $varname);
9c0b0016 179}
8d07e3e0 180
e673ee24 181?>