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comparison src/imap/ngx_imap_ssl_module.c @ 88:e916a291e9aa NGINX_0_1_44

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nginx 0.1.44 *) Feature: the IMAP/POP3 proxy supports SSL. *) Feature: the "proxy_timeout" directive of the ngx_imap_proxy_module. *) Feature: the "userid_mark" directive. *) Feature: the $remote_user variable value is determined independently of authorization use.
author Igor Sysoev <http://sysoev.ru>
date Tue, 06 Sep 2005 00:00:00 +0400
parents
children 71c46860eb55
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87:5b7ec80c3c40 88:e916a291e9aa
1
2 /*
3 * Copyright (C) Igor Sysoev
4 */
5
6
7 #include <ngx_config.h>
8 #include <ngx_core.h>
9 #include <ngx_imap.h>
10
11
12 #define NGX_DEFLAUT_CERTIFICATE "cert.pem"
13 #define NGX_DEFLAUT_CERTIFICATE_KEY "cert.pem"
14
15
16 static void *ngx_imap_ssl_create_conf(ngx_conf_t *cf);
17 static char *ngx_imap_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child);
18
19
20 static ngx_command_t ngx_imap_ssl_commands[] = {
21
22 { ngx_string("ssl"),
23 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_FLAG,
24 ngx_conf_set_flag_slot,
25 NGX_IMAP_SRV_CONF_OFFSET,
26 offsetof(ngx_imap_ssl_conf_t, enable),
27 NULL },
28
29 { ngx_string("ssl_certificate"),
30 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1,
31 ngx_conf_set_str_slot,
32 NGX_IMAP_SRV_CONF_OFFSET,
33 offsetof(ngx_imap_ssl_conf_t, certificate),
34 NULL },
35
36 { ngx_string("ssl_certificate_key"),
37 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1,
38 ngx_conf_set_str_slot,
39 NGX_IMAP_SRV_CONF_OFFSET,
40 offsetof(ngx_imap_ssl_conf_t, certificate_key),
41 NULL },
42
43 { ngx_string("ssl_ciphers"),
44 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1,
45 ngx_conf_set_str_slot,
46 NGX_IMAP_SRV_CONF_OFFSET,
47 offsetof(ngx_imap_ssl_conf_t, ciphers),
48 NULL },
49
50 ngx_null_command
51 };
52
53
54 static ngx_imap_module_t ngx_imap_ssl_module_ctx = {
55 NULL, /* create main configuration */
56 NULL, /* init main configuration */
57
58 ngx_imap_ssl_create_conf, /* create server configuration */
59 ngx_imap_ssl_merge_conf /* merge server configuration */
60 };
61
62
63 ngx_module_t ngx_imap_ssl_module = {
64 NGX_MODULE_V1,
65 &ngx_imap_ssl_module_ctx, /* module context */
66 ngx_imap_ssl_commands, /* module directives */
67 NGX_IMAP_MODULE, /* module type */
68 NULL, /* init module */
69 NULL /* init process */
70 };
71
72
73 static void *
74 ngx_imap_ssl_create_conf(ngx_conf_t *cf)
75 {
76 ngx_imap_ssl_conf_t *scf;
77
78 scf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_ssl_conf_t));
79 if (scf == NULL) {
80 return NGX_CONF_ERROR;
81 }
82
83 /*
84 * set by ngx_pcalloc():
85 *
86 * scf->certificate.len = 0;
87 * scf->certificate.data = NULL;
88 * scf->certificate_key.len = 0;
89 * scf->certificate_key.data = NULL;
90 * scf->ciphers.len = 0;
91 * scf->ciphers.data = NULL;
92 */
93
94 scf->enable = NGX_CONF_UNSET;
95
96 return scf;
97 }
98
99
100 static char *
101 ngx_imap_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child)
102 {
103 ngx_imap_ssl_conf_t *prev = parent;
104 ngx_imap_ssl_conf_t *conf = child;
105
106 ngx_conf_merge_value(conf->enable, prev->enable, 0);
107
108 if (conf->enable == 0) {
109 return NGX_CONF_OK;
110 }
111
112 ngx_conf_merge_str_value(conf->certificate, prev->certificate,
113 NGX_DEFLAUT_CERTIFICATE);
114
115 ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key,
116 NGX_DEFLAUT_CERTIFICATE_KEY);
117
118 ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, "");
119
120
121 /* TODO: configure methods */
122
123 conf->ssl_ctx = SSL_CTX_new(SSLv23_server_method());
124
125 if (conf->ssl_ctx == NULL) {
126 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, "SSL_CTX_new() failed");
127 return NGX_CONF_ERROR;
128 }
129
130 if (ngx_pool_cleanup_add(cf->pool, ngx_ssl_cleanup_ctx, conf->ssl_ctx)
131 == NULL)
132 {
133 return NGX_CONF_ERROR;
134 }
135
136
137 #if 0
138 SSL_CTX_set_options(conf->ssl_ctx, SSL_OP_ALL);
139 SSL_CTX_set_options(conf->ssl_ctx, SSL_OP_NO_SSLv3);
140 SSL_CTX_set_options(conf->ssl_ctx, SSL_OP_SINGLE_DH_USE);
141 #endif
142
143 if (conf->ciphers.len) {
144 if (SSL_CTX_set_cipher_list(conf->ssl_ctx,
145 (const char *) conf->ciphers.data) == 0)
146 {
147 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
148 "SSL_CTX_set_cipher_list(\"%V\") failed",
149 &conf->ciphers);
150 }
151 }
152
153 if (SSL_CTX_use_certificate_chain_file(conf->ssl_ctx,
154 (char *) conf->certificate.data) == 0)
155 {
156 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
157 "SSL_CTX_use_certificate_chain_file(\"%s\") failed",
158 conf->certificate.data);
159 return NGX_CONF_ERROR;
160 }
161
162
163 if (SSL_CTX_use_PrivateKey_file(conf->ssl_ctx,
164 (char *) conf->certificate_key.data,
165 SSL_FILETYPE_PEM) == 0)
166 {
167 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
168 "SSL_CTX_use_PrivateKey_file(\"%s\") failed",
169 conf->certificate_key.data);
170 return NGX_CONF_ERROR;
171 }
172
173 return NGX_CONF_OK;
174 }