2005-09-07 00:09:32 +08:00
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/*
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* Copyright (C) Igor Sysoev
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_imap.h>
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#define NGX_DEFLAUT_CERTIFICATE "cert.pem"
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#define NGX_DEFLAUT_CERTIFICATE_KEY "cert.pem"
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static void *ngx_imap_ssl_create_conf(ngx_conf_t *cf);
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static char *ngx_imap_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child);
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static ngx_command_t ngx_imap_ssl_commands[] = {
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{ ngx_string("ssl"),
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NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_FLAG,
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ngx_conf_set_flag_slot,
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NGX_IMAP_SRV_CONF_OFFSET,
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offsetof(ngx_imap_ssl_conf_t, enable),
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NULL },
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{ ngx_string("ssl_certificate"),
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NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_str_slot,
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NGX_IMAP_SRV_CONF_OFFSET,
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offsetof(ngx_imap_ssl_conf_t, certificate),
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NULL },
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{ ngx_string("ssl_certificate_key"),
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NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_str_slot,
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NGX_IMAP_SRV_CONF_OFFSET,
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offsetof(ngx_imap_ssl_conf_t, certificate_key),
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NULL },
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{ ngx_string("ssl_ciphers"),
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NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_str_slot,
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NGX_IMAP_SRV_CONF_OFFSET,
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offsetof(ngx_imap_ssl_conf_t, ciphers),
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NULL },
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ngx_null_command
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};
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static ngx_imap_module_t ngx_imap_ssl_module_ctx = {
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NULL, /* create main configuration */
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NULL, /* init main configuration */
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ngx_imap_ssl_create_conf, /* create server configuration */
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ngx_imap_ssl_merge_conf /* merge server configuration */
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};
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ngx_module_t ngx_imap_ssl_module = {
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NGX_MODULE_V1,
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&ngx_imap_ssl_module_ctx, /* module context */
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ngx_imap_ssl_commands, /* module directives */
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NGX_IMAP_MODULE, /* module type */
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2005-09-08 22:36:09 +08:00
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NULL, /* init master */
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2005-09-07 00:09:32 +08:00
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NULL, /* init module */
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2005-09-08 22:36:09 +08:00
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NULL, /* init process */
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NULL, /* init thread */
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NULL, /* exit thread */
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NULL, /* exit process */
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NULL, /* exit master */
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NGX_MODULE_V1_PADDING
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2005-09-07 00:09:32 +08:00
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};
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static void *
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ngx_imap_ssl_create_conf(ngx_conf_t *cf)
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{
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ngx_imap_ssl_conf_t *scf;
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scf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_ssl_conf_t));
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if (scf == NULL) {
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return NGX_CONF_ERROR;
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}
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/*
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* set by ngx_pcalloc():
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*
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* scf->certificate.len = 0;
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* scf->certificate.data = NULL;
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* scf->certificate_key.len = 0;
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* scf->certificate_key.data = NULL;
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* scf->ciphers.len = 0;
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* scf->ciphers.data = NULL;
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*/
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scf->enable = NGX_CONF_UNSET;
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return scf;
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}
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static char *
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ngx_imap_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child)
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{
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ngx_imap_ssl_conf_t *prev = parent;
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ngx_imap_ssl_conf_t *conf = child;
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ngx_conf_merge_value(conf->enable, prev->enable, 0);
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if (conf->enable == 0) {
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return NGX_CONF_OK;
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}
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ngx_conf_merge_str_value(conf->certificate, prev->certificate,
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NGX_DEFLAUT_CERTIFICATE);
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ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key,
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NGX_DEFLAUT_CERTIFICATE_KEY);
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ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, "");
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/* TODO: configure methods */
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conf->ssl_ctx = SSL_CTX_new(SSLv23_server_method());
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if (conf->ssl_ctx == NULL) {
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ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, "SSL_CTX_new() failed");
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return NGX_CONF_ERROR;
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}
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if (ngx_pool_cleanup_add(cf->pool, ngx_ssl_cleanup_ctx, conf->ssl_ctx)
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== NULL)
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{
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return NGX_CONF_ERROR;
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}
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#if 0
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SSL_CTX_set_options(conf->ssl_ctx, SSL_OP_ALL);
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SSL_CTX_set_options(conf->ssl_ctx, SSL_OP_NO_SSLv3);
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SSL_CTX_set_options(conf->ssl_ctx, SSL_OP_SINGLE_DH_USE);
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#endif
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if (conf->ciphers.len) {
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if (SSL_CTX_set_cipher_list(conf->ssl_ctx,
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(const char *) conf->ciphers.data) == 0)
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{
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ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
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"SSL_CTX_set_cipher_list(\"%V\") failed",
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&conf->ciphers);
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}
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}
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if (SSL_CTX_use_certificate_chain_file(conf->ssl_ctx,
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(char *) conf->certificate.data) == 0)
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{
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ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
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"SSL_CTX_use_certificate_chain_file(\"%s\") failed",
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conf->certificate.data);
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return NGX_CONF_ERROR;
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}
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if (SSL_CTX_use_PrivateKey_file(conf->ssl_ctx,
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(char *) conf->certificate_key.data,
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SSL_FILETYPE_PEM) == 0)
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{
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ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
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"SSL_CTX_use_PrivateKey_file(\"%s\") failed",
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conf->certificate_key.data);
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return NGX_CONF_ERROR;
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}
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2005-09-08 22:36:09 +08:00
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SSL_CTX_set_verify(conf->ssl_ctx, SSL_VERIFY_NONE, NULL);
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2005-09-07 00:09:32 +08:00
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return NGX_CONF_OK;
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}
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