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290
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_mail.h>
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11
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12
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13 static void *ngx_mail_core_create_main_conf(ngx_conf_t *cf);
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14 static void *ngx_mail_core_create_srv_conf(ngx_conf_t *cf);
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15 static char *ngx_mail_core_merge_srv_conf(ngx_conf_t *cf, void *parent,
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16 void *child);
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17 static char *ngx_mail_core_server(ngx_conf_t *cf, ngx_command_t *cmd,
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18 void *conf);
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19 static char *ngx_mail_core_listen(ngx_conf_t *cf, ngx_command_t *cmd,
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20 void *conf);
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336
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21 static char *ngx_mail_core_protocol(ngx_conf_t *cf, ngx_command_t *cmd,
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290
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22 void *conf);
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23
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24
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25 static ngx_command_t ngx_mail_core_commands[] = {
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26
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27 { ngx_string("server"),
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28 NGX_MAIL_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS,
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29 ngx_mail_core_server,
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30 0,
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31 0,
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32 NULL },
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33
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34 { ngx_string("listen"),
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35 NGX_MAIL_SRV_CONF|NGX_CONF_TAKE12,
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36 ngx_mail_core_listen,
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336
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37 NGX_MAIL_SRV_CONF_OFFSET,
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290
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38 0,
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39 NULL },
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40
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41 { ngx_string("protocol"),
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42 NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
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336
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43 ngx_mail_core_protocol,
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290
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44 NGX_MAIL_SRV_CONF_OFFSET,
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336
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45 0,
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290
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46 NULL },
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47
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48 { ngx_string("so_keepalive"),
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49 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG,
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50 ngx_conf_set_flag_slot,
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51 NGX_MAIL_SRV_CONF_OFFSET,
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52 offsetof(ngx_mail_core_srv_conf_t, so_keepalive),
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53 NULL },
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54
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55 { ngx_string("timeout"),
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56 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
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57 ngx_conf_set_msec_slot,
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58 NGX_MAIL_SRV_CONF_OFFSET,
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59 offsetof(ngx_mail_core_srv_conf_t, timeout),
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60 NULL },
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61
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62 { ngx_string("server_name"),
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63 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
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64 ngx_conf_set_str_slot,
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65 NGX_MAIL_SRV_CONF_OFFSET,
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66 offsetof(ngx_mail_core_srv_conf_t, server_name),
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67 NULL },
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68
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69 ngx_null_command
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70 };
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71
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72
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73 static ngx_mail_module_t ngx_mail_core_module_ctx = {
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336
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74 NULL, /* protocol */
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75
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290
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76 ngx_mail_core_create_main_conf, /* create main configuration */
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77 NULL, /* init main configuration */
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78
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79 ngx_mail_core_create_srv_conf, /* create server configuration */
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80 ngx_mail_core_merge_srv_conf /* merge server configuration */
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81 };
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82
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83
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84 ngx_module_t ngx_mail_core_module = {
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85 NGX_MODULE_V1,
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86 &ngx_mail_core_module_ctx, /* module context */
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87 ngx_mail_core_commands, /* module directives */
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88 NGX_MAIL_MODULE, /* module type */
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89 NULL, /* init master */
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90 NULL, /* init module */
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91 NULL, /* init process */
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92 NULL, /* init thread */
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93 NULL, /* exit thread */
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94 NULL, /* exit process */
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95 NULL, /* exit master */
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96 NGX_MODULE_V1_PADDING
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97 };
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98
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99
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100 static void *
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101 ngx_mail_core_create_main_conf(ngx_conf_t *cf)
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102 {
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103 ngx_mail_core_main_conf_t *cmcf;
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104
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105 cmcf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_core_main_conf_t));
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106 if (cmcf == NULL) {
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107 return NGX_CONF_ERROR;
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108 }
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109
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110 if (ngx_array_init(&cmcf->servers, cf->pool, 4,
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111 sizeof(ngx_mail_core_srv_conf_t *))
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112 != NGX_OK)
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113 {
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114 return NGX_CONF_ERROR;
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115 }
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116
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117 if (ngx_array_init(&cmcf->listen, cf->pool, 4, sizeof(ngx_mail_listen_t))
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118 != NGX_OK)
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119 {
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120 return NGX_CONF_ERROR;
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121 }
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122
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123 return cmcf;
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124 }
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125
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126
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127 static void *
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128 ngx_mail_core_create_srv_conf(ngx_conf_t *cf)
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129 {
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130 ngx_mail_core_srv_conf_t *cscf;
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131
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132 cscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_core_srv_conf_t));
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133 if (cscf == NULL) {
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134 return NULL;
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135 }
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136
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336
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137 /*
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138 * set by ngx_pcalloc():
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139 *
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140 * cscf->protocol = NULL;
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141 */
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142
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290
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143 cscf->timeout = NGX_CONF_UNSET_MSEC;
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144 cscf->so_keepalive = NGX_CONF_UNSET;
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145
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146 return cscf;
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147 }
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148
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149
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150 static char *
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151 ngx_mail_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
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152 {
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153 ngx_mail_core_srv_conf_t *prev = parent;
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154 ngx_mail_core_srv_conf_t *conf = child;
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155
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156 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000);
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157
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336
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158 ngx_conf_merge_value(conf->so_keepalive, prev->so_keepalive, 0);
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290
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159
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160
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161 ngx_conf_merge_str_value(conf->server_name, prev->server_name, "");
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162
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163 if (conf->server_name.len == 0) {
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164 conf->server_name.data = ngx_palloc(cf->pool, NGX_MAXHOSTNAMELEN);
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165 if (conf->server_name.data == NULL) {
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166 return NGX_CONF_ERROR;
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167 }
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168
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169 if (gethostname((char *) conf->server_name.data, NGX_MAXHOSTNAMELEN)
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170 == -1)
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171 {
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336
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172 ngx_log_error(NGX_LOG_EMERG, cf->log, ngx_errno,
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173 "gethostname() failed");
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290
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174 return NGX_CONF_ERROR;
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175 }
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176
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177 conf->server_name.len = ngx_strlen(conf->server_name.data);
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178 }
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179
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336
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180 if (conf->protocol == NULL) {
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181 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
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182 "unknown mail protocol for server in %s:%ui",
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183 conf->file_name, conf->line);
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290
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184 return NGX_CONF_ERROR;
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185 }
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186
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187 return NGX_CONF_OK;
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188 }
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189
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190
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191 static char *
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192 ngx_mail_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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193 {
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194 char *rv;
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195 void *mconf;
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196 ngx_uint_t m;
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197 ngx_conf_t pcf;
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198 ngx_mail_module_t *module;
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199 ngx_mail_conf_ctx_t *ctx, *mail_ctx;
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200 ngx_mail_core_srv_conf_t *cscf, **cscfp;
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201 ngx_mail_core_main_conf_t *cmcf;
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202
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203 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_mail_conf_ctx_t));
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204 if (ctx == NULL) {
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205 return NGX_CONF_ERROR;
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206 }
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207
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208 mail_ctx = cf->ctx;
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209 ctx->main_conf = mail_ctx->main_conf;
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210
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211 /* the server{}'s srv_conf */
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212
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213 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_mail_max_module);
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214 if (ctx->srv_conf == NULL) {
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215 return NGX_CONF_ERROR;
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216 }
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217
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218 for (m = 0; ngx_modules[m]; m++) {
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219 if (ngx_modules[m]->type != NGX_MAIL_MODULE) {
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220 continue;
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221 }
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222
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223 module = ngx_modules[m]->ctx;
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224
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225 if (module->create_srv_conf) {
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226 mconf = module->create_srv_conf(cf);
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227 if (mconf == NULL) {
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228 return NGX_CONF_ERROR;
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229 }
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230
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231 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf;
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232 }
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233 }
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234
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235 /* the server configuration context */
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236
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237 cscf = ctx->srv_conf[ngx_mail_core_module.ctx_index];
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238 cscf->ctx = ctx;
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239
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336
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240 cscf->file_name = cf->conf_file->file.name.data;
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241 cscf->line = cf->conf_file->line;
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242
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290
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243 cmcf = ctx->main_conf[ngx_mail_core_module.ctx_index];
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244
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245 cscfp = ngx_array_push(&cmcf->servers);
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246 if (cscfp == NULL) {
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247 return NGX_CONF_ERROR;
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248 }
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249
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250 *cscfp = cscf;
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251
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252
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253 /* parse inside server{} */
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254
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255 pcf = *cf;
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256 cf->ctx = ctx;
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257 cf->cmd_type = NGX_MAIL_SRV_CONF;
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258
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259 rv = ngx_conf_parse(cf, NULL);
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260
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261 *cf = pcf;
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262
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263 return rv;
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264 }
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265
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266
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267 /* AF_INET only */
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268
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269 static char *
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270 ngx_mail_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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271 {
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336
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272 ngx_mail_core_srv_conf_t *cscf = conf;
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273
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290
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274 ngx_str_t *value;
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275 ngx_url_t u;
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336
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276 ngx_uint_t i, m;
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290
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277 ngx_mail_listen_t *imls;
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336
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278 ngx_mail_module_t *module;
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290
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279 ngx_mail_core_main_conf_t *cmcf;
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280
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281 value = cf->args->elts;
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282
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283 ngx_memzero(&u, sizeof(ngx_url_t));
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284
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285 u.url = value[1];
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286 u.listen = 1;
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287
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288 if (ngx_parse_url(cf, &u) != NGX_OK) {
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289 if (u.err) {
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290 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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291 "%s in \"%V\" of the \"listen\" directive",
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292 u.err, &u.url);
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293 }
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294
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295 return NGX_CONF_ERROR;
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296 }
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297
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298 cmcf = ngx_mail_conf_get_module_main_conf(cf, ngx_mail_core_module);
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299
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300 imls = cmcf->listen.elts;
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301
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302 for (i = 0; i < cmcf->listen.nelts; i++) {
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303
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304 if (imls[i].addr != u.addr.in_addr || imls[i].port != u.port) {
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305 continue;
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306 }
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307
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308 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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309 "duplicate \"%V\" address and port pair", &u.url);
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310 return NGX_CONF_ERROR;
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311 }
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312
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313 imls = ngx_array_push(&cmcf->listen);
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314 if (imls == NULL) {
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315 return NGX_CONF_ERROR;
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316 }
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317
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318 ngx_memzero(imls, sizeof(ngx_mail_listen_t));
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319
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320 imls->addr = u.addr.in_addr;
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321 imls->port = u.port;
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322 imls->family = AF_INET;
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323 imls->ctx = cf->ctx;
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324
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336
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325 for (m = 0; ngx_modules[m]; m++) {
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326 if (ngx_modules[m]->type != NGX_MAIL_MODULE) {
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327 continue;
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328 }
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329
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330 module = ngx_modules[m]->ctx;
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331
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332 if (module->protocol == NULL) {
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333 continue;
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334 }
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335
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336 for (i = 0; module->protocol->port[i]; i++) {
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337 if (module->protocol->port[i] == u.port) {
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338 cscf->protocol = module->protocol;
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339 break;
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340 }
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341 }
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342 }
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343
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290
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344 if (cf->args->nelts == 2) {
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345 return NGX_CONF_OK;
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346 }
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347
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348 if (ngx_strcmp(value[2].data, "bind") == 0) {
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349 imls->bind = 1;
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350 return NGX_CONF_OK;
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351 }
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352
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353 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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354 "the invalid \"%V\" parameter", &value[2]);
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355 return NGX_CONF_ERROR;
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356 }
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357
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358
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359 static char *
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336
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360 ngx_mail_core_protocol(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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361 {
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362 ngx_mail_core_srv_conf_t *cscf = conf;
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363
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364 ngx_str_t *value;
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365 ngx_uint_t m;
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366 ngx_mail_module_t *module;
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367
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368 value = cf->args->elts;
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369
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370 for (m = 0; ngx_modules[m]; m++) {
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371 if (ngx_modules[m]->type != NGX_MAIL_MODULE) {
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372 continue;
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373 }
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374
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375 module = ngx_modules[m]->ctx;
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376
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377 if (module->protocol
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378 && ngx_strcmp(module->protocol->name.data, value[1].data) == 0)
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379 {
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380 cscf->protocol = module->protocol;
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381
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382 return NGX_CONF_OK;
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383 }
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384 }
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385
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386 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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387 "unknown protocol \"%V\"", &value[1]);
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388 return NGX_CONF_ERROR;
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389 }
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390
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391
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392 char *
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393 ngx_mail_capabilities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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290
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394 {
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395 char *p = conf;
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396
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397 ngx_str_t *c, *value;
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398 ngx_uint_t i;
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399 ngx_array_t *a;
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400
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401 a = (ngx_array_t *) (p + cmd->offset);
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402
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403 value = cf->args->elts;
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404
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405 for (i = 1; i < cf->args->nelts; i++) {
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406 c = ngx_array_push(a);
|
|
|
407 if (c == NULL) {
|
|
|
408 return NGX_CONF_ERROR;
|
|
|
409 }
|
|
|
410
|
|
|
411 *c = value[i];
|
|
|
412 }
|
|
|
413
|
|
|
414 return NGX_CONF_OK;
|
|
|
415 }
|
