Mercurial > dovecot > core-2.2

annotate src/auth/auth-settings.c @ 12087:27d235096cca

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auth: Fail if auth_cache_size value is too small.
author Timo Sirainen <tss@iki.fi>
date Wed, 08 Sep 2010 14:55:57 +0100
parents d41694c931d0
children 52e197994a55
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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615eef3139c2 Updated copyright notices to include year 2010.
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1 /* Copyright (c) 2005-2010 Dovecot authors, see the included COPYING file */
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2
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3 #include "lib.h"
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4 #include "array.h"
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5 #include "settings-parser.h"
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6 #include "master-service-private.h"
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7 #include "master-service-settings.h"
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8 #include "service-settings.h"
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9 #include "auth-settings.h"
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10
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11 #include <stddef.h>
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12
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13 static bool auth_settings_check(void *_set, pool_t pool, const char **error_r);
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14 static bool auth_passdb_settings_check(void *_set, pool_t pool, const char **error_r);
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15 static bool auth_userdb_settings_check(void *_set, pool_t pool, const char **error_r);
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16
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17 /* <settings checks> */
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18 static struct file_listener_settings auth_unix_listeners_array[] = {
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19 { "login/login", 0666, "", "" },
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20 { "auth-login", 0600, "$default_internal_user", "" },
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21 { "auth-client", 0600, "", "" },
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22 { "auth-userdb", 0600, "", "" },
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23 { "auth-master", 0600, "", "" }
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24 };
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25 static struct file_listener_settings *auth_unix_listeners[] = {
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26 &auth_unix_listeners_array[0],
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27 &auth_unix_listeners_array[1],
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28 &auth_unix_listeners_array[2],
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29 &auth_unix_listeners_array[3],
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30 &auth_unix_listeners_array[4]
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31 };
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32 static buffer_t auth_unix_listeners_buf = {
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33 auth_unix_listeners, sizeof(auth_unix_listeners), { 0, }
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34 };
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35 /* </settings checks> */
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36
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37 struct service_settings auth_service_settings = {
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38 .name = "auth",
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39 .protocol = "",
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40 .type = "",
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41 .executable = "auth",
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42 .user = "$default_internal_user",
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43 .group = "",
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44 .privileged_group = "",
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45 .extra_groups = "",
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46 .chroot = "",
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47
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48 .drop_priv_before_exec = FALSE,
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49
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50 .process_min_avail = 0,
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51 .process_limit = 1,
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52 .client_limit = 4096,
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53 .service_count = 0,
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54 .idle_kill = 0,
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55 .vsz_limit = -1U,
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56
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57 .unix_listeners = { { &auth_unix_listeners_buf,
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58 sizeof(auth_unix_listeners[0]) } },
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59 .fifo_listeners = ARRAY_INIT,
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60 .inet_listeners = ARRAY_INIT
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61 };
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62
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63 /* <settings checks> */
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64 static struct file_listener_settings auth_worker_unix_listeners_array[] = {
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65 { "auth-worker", 0600, "$default_internal_user", "" }
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66 };
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67 static struct file_listener_settings *auth_worker_unix_listeners[] = {
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68 &auth_worker_unix_listeners_array[0]
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69 };
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70 static buffer_t auth_worker_unix_listeners_buf = {
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71 auth_worker_unix_listeners, sizeof(auth_worker_unix_listeners), { 0, }
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72 };
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73 /* </settings checks> */
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74
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75 struct service_settings auth_worker_service_settings = {
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76 .name = "auth-worker",
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77 .protocol = "",
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78 .type = "",
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79 .executable = "auth -w",
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80 .user = "",
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81 .group = "",
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82 .privileged_group = "",
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83 .extra_groups = "",
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84 .chroot = "",
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85
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86 .drop_priv_before_exec = FALSE,
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87
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88 .process_min_avail = 0,
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89 .process_limit = 0,
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90 .client_limit = 1,
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91 .service_count = 1,
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92 .idle_kill = 0,
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93 .vsz_limit = -1U,
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94
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95 .unix_listeners = { { &auth_worker_unix_listeners_buf,
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96 sizeof(auth_worker_unix_listeners[0]) } },
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97 .fifo_listeners = ARRAY_INIT,
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98 .inet_listeners = ARRAY_INIT
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99 };
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100
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101 #undef DEF
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102 #define DEF(type, name) \
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103 { type, #name, offsetof(struct auth_passdb_settings, name), NULL }
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104
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105 static const struct setting_define auth_passdb_setting_defines[] = {
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106 DEF(SET_STR, driver),
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107 DEF(SET_STR, args),
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108 DEF(SET_BOOL, deny),
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109 DEF(SET_BOOL, pass),
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110 DEF(SET_BOOL, master),
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111
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112 SETTING_DEFINE_LIST_END
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113 };
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114
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115 static const struct auth_passdb_settings auth_passdb_default_settings = {
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116 .driver = "",
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117 .args = "",
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118 .deny = FALSE,
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119 .pass = FALSE,
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120 .master = FALSE
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121 };
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122
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123 const struct setting_parser_info auth_passdb_setting_parser_info = {
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124 .defines = auth_passdb_setting_defines,
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125 .defaults = &auth_passdb_default_settings,
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126
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127 .type_offset = (size_t)-1,
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128 .struct_size = sizeof(struct auth_passdb_settings),
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129
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130 .parent_offset = (size_t)-1,
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131 .parent = &auth_setting_parser_info,
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132
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133 .check_func = auth_passdb_settings_check
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134 };
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135
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136 #undef DEF
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137 #define DEF(type, name) \
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138 { type, #name, offsetof(struct auth_userdb_settings, name), NULL }
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139
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140 static const struct setting_define auth_userdb_setting_defines[] = {
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141 DEF(SET_STR, driver),
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142 DEF(SET_STR, args),
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143
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144 SETTING_DEFINE_LIST_END
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145 };
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146
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147 static const struct auth_userdb_settings auth_userdb_default_settings = {
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148 .driver = "",
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149 .args = ""
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150 };
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151
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152 const struct setting_parser_info auth_userdb_setting_parser_info = {
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153 .defines = auth_userdb_setting_defines,
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154 .defaults = &auth_userdb_default_settings,
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155
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156 .type_offset = (size_t)-1,
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157 .struct_size = sizeof(struct auth_userdb_settings),
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158
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159 .parent_offset = (size_t)-1,
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160 .parent = &auth_setting_parser_info,
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161
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162 .check_func = auth_userdb_settings_check
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163 };
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164
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165 /* we're kind of kludging here to avoid "auth_" prefix in the struct fields */
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166 #undef DEF
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167 #undef DEF_NOPREFIX
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168 #undef DEFLIST
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169 #define DEF(type, name) \
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170 { type, "auth_"#name, offsetof(struct auth_settings, name), NULL }
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171 #define DEF_NOPREFIX(type, name) \
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172 { type, #name, offsetof(struct auth_settings, name), NULL }
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173 #define DEFLIST(field, name, defines) \
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174 { SET_DEFLIST, name, offsetof(struct auth_settings, field), defines }
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175
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176 static const struct setting_define auth_setting_defines[] = {
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177 DEF(SET_STR, mechanisms),
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178 DEF(SET_STR, realms),
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179 DEF(SET_STR, default_realm),
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180 DEF(SET_SIZE, cache_size),
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181 DEF(SET_TIME, cache_ttl),
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182 DEF(SET_TIME, cache_negative_ttl),
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183 DEF(SET_STR, username_chars),
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184 DEF(SET_STR, username_translation),
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185 DEF(SET_STR, username_format),
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186 DEF(SET_STR, master_user_separator),
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187 DEF(SET_STR, anonymous_username),
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188 DEF(SET_STR, krb5_keytab),
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189 DEF(SET_STR, gssapi_hostname),
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190 DEF(SET_STR, winbind_helper_path),
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191 DEF(SET_TIME, failure_delay),
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192
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193 DEF(SET_BOOL, verbose),
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194 DEF(SET_BOOL, debug),
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195 DEF(SET_BOOL, debug_passwords),
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196 DEF(SET_ENUM, verbose_passwords),
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197 DEF(SET_BOOL, ssl_require_client_cert),
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198 DEF(SET_BOOL, ssl_username_from_cert),
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199 DEF(SET_BOOL, use_winbind),
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200
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201 DEF(SET_UINT, worker_max_count),
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202
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203 DEFLIST(passdbs, "passdb", &auth_passdb_setting_parser_info),
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204 DEFLIST(userdbs, "userdb", &auth_userdb_setting_parser_info),
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205
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206 DEF_NOPREFIX(SET_BOOL, verbose_proctitle),
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207
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208 SETTING_DEFINE_LIST_END
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209 };
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210
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211 static const struct auth_settings auth_default_settings = {
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212 .mechanisms = "plain",
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213 .realms = "",
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214 .default_realm = "",
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215 .cache_size = 0,
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216 .cache_ttl = 60*60,
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217 .cache_negative_ttl = 0,
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218 .username_chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@",
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219 .username_translation = "",
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220 .username_format = "",
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221 .master_user_separator = "",
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222 .anonymous_username = "anonymous",
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223 .krb5_keytab = "",
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224 .gssapi_hostname = "",
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225 .winbind_helper_path = "/usr/bin/ntlm_auth",
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226 .failure_delay = 2,
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227
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228 .verbose = FALSE,
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229 .debug = FALSE,
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230 .debug_passwords = FALSE,
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231 .verbose_passwords = "no:plain:sha1",
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232 .ssl_require_client_cert = FALSE,
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233 .ssl_username_from_cert = FALSE,
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234 .use_winbind = FALSE,
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235
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236 .worker_max_count = 30,
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237
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238 .passdbs = ARRAY_INIT,
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239 .userdbs = ARRAY_INIT,
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240
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241 .verbose_proctitle = FALSE
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242 };
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243
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244 const struct setting_parser_info auth_setting_parser_info = {
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245 .module_name = "auth",
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246 .defines = auth_setting_defines,
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247 .defaults = &auth_default_settings,
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248
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249 .type_offset = (size_t)-1,
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250 .struct_size = sizeof(struct auth_settings),
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251
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252 .parent_offset = (size_t)-1,
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253
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254 .check_func = auth_settings_check
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255 };
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256
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257 /* <settings checks> */
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258 static bool auth_settings_check(void *_set, pool_t pool,
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259 const char **error_r)
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260 {
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261 struct auth_settings *set = _set;
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262 const char *p;
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263
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264 if (set->debug_passwords)
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265 set->debug = TRUE;
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266 if (set->debug)
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267 set->verbose = TRUE;
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268
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269 if (set->cache_size < 1024) {
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270 /* probably a configuration error.
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271 older versions used megabyte numbers */
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272 *error_r = t_strdup_printf("auth_cache_size value is too small "
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273 "(%"PRIuUOFF_T" bytes)",
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diff changeset
274 set->cache_size);
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275 return FALSE;
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276 }
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277
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278 if (*set->username_chars == '\0') {
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279 /* all chars are allowed */
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280 memset(set->username_chars_map, 1,
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281 sizeof(set->username_chars_map));
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282 } else {
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283 for (p = set->username_chars; *p != '\0'; p++)
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284 set->username_chars_map[(int)(uint8_t)*p] = 1;
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285 }
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286
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287 if (*set->username_translation != '\0') {
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288 p = set->username_translation;
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289 for (; *p != '\0' && p[1] != '\0'; p += 2)
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290 set->username_translation_map[(int)(uint8_t)*p] = p[1];
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291 }
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292 set->realms_arr =
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293 (const char *const *)p_strsplit_spaces(pool, set->realms, " ");
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294 return TRUE;
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295 }
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296
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297 static bool
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298 auth_passdb_settings_check(void *_set, pool_t pool ATTR_UNUSED,
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299 const char **error_r)
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300 {
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301 struct auth_passdb_settings *set = _set;
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302
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303 if (set->driver == NULL || *set->driver == '\0') {
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304 *error_r = "passdb is missing driver";
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305 return FALSE;
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306 }
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307 return TRUE;
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308 }
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309
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diff changeset
310 static bool
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diff changeset
311 auth_userdb_settings_check(void *_set, pool_t pool ATTR_UNUSED,
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diff changeset
312 const char **error_r)
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diff changeset
313 {
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314 struct auth_userdb_settings *set = _set;
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315
a2ed5c020cfa auth: Don't use section names for passdb/userdb driver names.
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parents: 10576
diff changeset
316 if (set->driver == NULL || *set->driver == '\0') {
10587
bea4b2d1f27f auth: Fixed "userdb is missing driver" error.
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parents: 10585
diff changeset
317 *error_r = "userdb is missing driver";
10578
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diff changeset
318 return FALSE;
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parents: 10576
diff changeset
319 }
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diff changeset
320 return TRUE;
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diff changeset
321 }
9261
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diff changeset
322 /* </settings checks> */
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323
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diff changeset
324 struct auth_settings *global_auth_settings;
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diff changeset
325
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diff changeset
326 struct auth_settings *
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327 auth_settings_read(const char *service, pool_t pool,
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diff changeset
328 struct master_service_settings_output *output_r)
9002
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parents:
diff changeset
329 {
9159
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diff changeset
330 static const struct setting_parser_info *set_roots[] = {
9846
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parents: 9834
diff changeset
331 &auth_setting_parser_info,
9159
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parents: 9057
diff changeset
332 NULL
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diff changeset
333 };
10903
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diff changeset
334 struct master_service_settings_input input;
10953
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parents: 10921
diff changeset
335 struct setting_parser_context *set_parser;
9159
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parents: 9057
diff changeset
336 const char *error;
9002
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parents:
diff changeset
337
10903
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diff changeset
338 memset(&input, 0, sizeof(input));
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diff changeset
339 input.roots = set_roots;
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diff changeset
340 input.module = "auth";
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diff changeset
341 input.service = service;
6e639833c3fc auth: Initial support for per-protocol auth settings.
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diff changeset
342 if (master_service_settings_read(master_service, &input,
10953
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parents: 10921
diff changeset
343 output_r, &error) < 0)
9159
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Timo Sirainen <tss@iki.fi>
parents: 9057
diff changeset
344 i_fatal("Error reading configuration: %s", error);
9002
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parents:
diff changeset
345
10953
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parents: 10921
diff changeset
346 set_parser = settings_parser_dup(master_service->set_parser, pool);
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parents: 10921
diff changeset
347 if (!settings_parser_check(set_parser, pool, &error))
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Timo Sirainen <tss@iki.fi>
parents: 10921
diff changeset
348 i_unreached();
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parents: 10921
diff changeset
349
bdef690d41d5 auth: Fixed support for per-service auth settings.
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parents: 10921
diff changeset
350 return settings_parser_get_list(set_parser)[1];
9002
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parents:
diff changeset
351 }