annotate src/http/modules/ngx_http_ssl_module.c @ 547:818fbd4750b9 release-0.2.2

nginx-0.2.2-RELEASE import *) Feature: the "config errmsg" command of the ngx_http_ssi_module. *) Change: the ngx_http_geo_module variables can be overridden by the "set" directive. *) Feature: the "ssl_protocols" and "ssl_prefer_server_ciphers" directives of the ngx_http_ssl_module and ngx_imap_ssl_module. *) Bugfix: the ngx_http_autoindex_module did not show correctly the long file names; *) Bugfix: the ngx_http_autoindex_module now do not show the files starting by dot. *) Bugfix: if the SSL handshake failed then another connection may be closed too. Thanks to Rob Mueller. *) Bugfix: the export versions of MSIE 5.x could not connect via HTTPS.
author Igor Sysoev <igor@sysoev.ru>
date Fri, 30 Sep 2005 14:41:25 +0000
parents 511a89da35ad
children 9c2f3ed7a247
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1
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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2 /*
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42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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6
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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9 #include <ngx_http.h>
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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11 #define NGX_DEFLAUT_CERTIFICATE "cert.pem"
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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12 #define NGX_DEFLAUT_CERTIFICATE_KEY "cert.pem"
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818fbd4750b9 nginx-0.2.2-RELEASE import
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13 #define NGX_DEFLAUT_CIPHERS "ALL:!ADH:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP"
383
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14
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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15
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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16 static void *ngx_http_ssl_create_srv_conf(ngx_conf_t *cf);
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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17 static char *ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf,
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18 void *parent, void *child);
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19
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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20
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21 static ngx_conf_bitmask_t ngx_http_ssl_protocols[] = {
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22 { ngx_string("SSLv2"), NGX_SSL_SSLv2 },
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23 { ngx_string("SSLv3"), NGX_SSL_SSLv3 },
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24 { ngx_string("TLSv1"), NGX_SSL_TLSv1 },
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25 { ngx_null_string, 0 }
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26 };
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27
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28
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29 static ngx_command_t ngx_http_ssl_commands[] = {
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30
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31 { ngx_string("ssl"),
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32 NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
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33 ngx_conf_set_flag_slot,
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34 NGX_HTTP_SRV_CONF_OFFSET,
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35 offsetof(ngx_http_ssl_srv_conf_t, enable),
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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36 NULL },
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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37
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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38 { ngx_string("ssl_certificate"),
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39 NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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40 ngx_conf_set_str_slot,
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41 NGX_HTTP_SRV_CONF_OFFSET,
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42 offsetof(ngx_http_ssl_srv_conf_t, certificate),
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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43 NULL },
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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44
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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45 { ngx_string("ssl_certificate_key"),
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46 NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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47 ngx_conf_set_str_slot,
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48 NGX_HTTP_SRV_CONF_OFFSET,
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49 offsetof(ngx_http_ssl_srv_conf_t, certificate_key),
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50 NULL },
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51
547
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52 { ngx_string("ssl_protocols"),
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53 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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54 ngx_conf_set_bitmask_slot,
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55 NGX_HTTP_SRV_CONF_OFFSET,
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56 offsetof(ngx_http_ssl_srv_conf_t, protocols),
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57 &ngx_http_ssl_protocols },
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58
479
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59 { ngx_string("ssl_ciphers"),
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60 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_1MORE,
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61 ngx_conf_set_str_slot,
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62 NGX_HTTP_SRV_CONF_OFFSET,
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63 offsetof(ngx_http_ssl_srv_conf_t, ciphers),
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64 NULL },
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65
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66 { ngx_string("ssl_prefer_server_ciphers"),
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67 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
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68 ngx_conf_set_flag_slot,
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69 NGX_HTTP_SRV_CONF_OFFSET,
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70 offsetof(ngx_http_ssl_srv_conf_t, prefer_server_ciphers),
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71 NULL },
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72
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73 ngx_null_command
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74 };
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75
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76
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77 static ngx_http_module_t ngx_http_ssl_module_ctx = {
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78 NULL, /* preconfiguration */
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79 NULL, /* postconfiguration */
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80
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81 NULL, /* create main configuration */
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82 NULL, /* init main configuration */
383
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83
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84 ngx_http_ssl_create_srv_conf, /* create server configuration */
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85 ngx_http_ssl_merge_srv_conf, /* merge server configuration */
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86
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
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87 NULL, /* create location configuration */
485
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88 NULL /* merge location configuration */
383
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89 };
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90
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91
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92 ngx_module_t ngx_http_ssl_module = {
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93 NGX_MODULE_V1,
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94 &ngx_http_ssl_module_ctx, /* module context */
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95 ngx_http_ssl_commands, /* module directives */
383
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96 NGX_HTTP_MODULE, /* module type */
541
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97 NULL, /* init master */
393
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98 NULL, /* init module */
541
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99 NULL, /* init process */
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100 NULL, /* init thread */
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101 NULL, /* exit thread */
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102 NULL, /* exit process */
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103 NULL, /* exit master */
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104 NGX_MODULE_V1_PADDING
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105 };
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106
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107
543
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108 static u_char ngx_http_session_id_ctx[] = "HTTP";
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109
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110
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111 static void *
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112 ngx_http_ssl_create_srv_conf(ngx_conf_t *cf)
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113 {
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114 ngx_http_ssl_srv_conf_t *scf;
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115
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116 scf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssl_srv_conf_t));
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117 if (scf == NULL) {
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118 return NGX_CONF_ERROR;
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119 }
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diff changeset
120
479
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
121 /*
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
122 * set by ngx_pcalloc():
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
123 *
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
124 * scf->protocols = 0;
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
125
479
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
126 * scf->certificate.len = 0;
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
127 * scf->certificate.data = NULL;
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
128 * scf->certificate_key.len = 0;
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
129 * scf->certificate_key.data = NULL;
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
130 * scf->ciphers.len = 0;
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
131 * scf->ciphers.data = NULL;
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
132 */
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
133
383
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
134 scf->enable = NGX_CONF_UNSET;
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
135 scf->prefer_server_ciphers = NGX_CONF_UNSET;
383
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
136
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
137 return scf;
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
138 }
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
139
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
140
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 485
diff changeset
141 static char *
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 485
diff changeset
142 ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
383
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
143 {
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
144 ngx_http_ssl_srv_conf_t *prev = parent;
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
145 ngx_http_ssl_srv_conf_t *conf = child;
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
146
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
147 ngx_conf_merge_value(conf->enable, prev->enable, 0);
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
148
393
5659d773cfa8 nginx-0.0.7-2004-07-15-20:35:51 import
Igor Sysoev <igor@sysoev.ru>
parents: 392
diff changeset
149 if (conf->enable == 0) {
5659d773cfa8 nginx-0.0.7-2004-07-15-20:35:51 import
Igor Sysoev <igor@sysoev.ru>
parents: 392
diff changeset
150 return NGX_CONF_OK;
5659d773cfa8 nginx-0.0.7-2004-07-15-20:35:51 import
Igor Sysoev <igor@sysoev.ru>
parents: 392
diff changeset
151 }
5659d773cfa8 nginx-0.0.7-2004-07-15-20:35:51 import
Igor Sysoev <igor@sysoev.ru>
parents: 392
diff changeset
152
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
153 ngx_conf_merge_value(conf->prefer_server_ciphers,
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
154 prev->prefer_server_ciphers, 0);
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
155
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
156 ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols,
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
157 (NGX_CONF_BITMASK_SET
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
158 |NGX_SSL_SSLv2|NGX_SSL_SSLv3|NGX_SSL_TLSv1));
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
159
383
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
160 ngx_conf_merge_str_value(conf->certificate, prev->certificate,
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
161 NGX_DEFLAUT_CERTIFICATE);
383
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
162
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
163 ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key,
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
164 NGX_DEFLAUT_CERTIFICATE_KEY);
383
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
165
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
166 ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFLAUT_CIPHERS);
479
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
167
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
168
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
169 conf->ssl.log = cf->log;
386
fa72605e7089 nginx-0.0.7-2004-07-12-01:03:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 385
diff changeset
170
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
171 if (ngx_ssl_create(&conf->ssl, conf->protocols) != NGX_OK) {
386
fa72605e7089 nginx-0.0.7-2004-07-12-01:03:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 385
diff changeset
172 return NGX_CONF_ERROR;
fa72605e7089 nginx-0.0.7-2004-07-12-01:03:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 385
diff changeset
173 }
fa72605e7089 nginx-0.0.7-2004-07-12-01:03:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 385
diff changeset
174
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
175 if (ngx_pool_cleanup_add(cf->pool, ngx_ssl_cleanup_ctx, &conf->ssl) == NULL)
509
9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 507
diff changeset
176 {
9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 507
diff changeset
177 return NGX_CONF_ERROR;
9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 507
diff changeset
178 }
9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 507
diff changeset
179
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
180 if (ngx_ssl_certificate(&conf->ssl, conf->certificate.data,
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
181 conf->certificate_key.data) != NGX_OK)
529
e5d7d0334fdb nginx-0.1.39-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
182 {
386
fa72605e7089 nginx-0.0.7-2004-07-12-01:03:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 385
diff changeset
183 return NGX_CONF_ERROR;
fa72605e7089 nginx-0.0.7-2004-07-12-01:03:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 385
diff changeset
184 }
fa72605e7089 nginx-0.0.7-2004-07-12-01:03:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 385
diff changeset
185
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
186 if (SSL_CTX_set_cipher_list(conf->ssl.ctx,
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
187 (const char *) conf->ciphers.data) == 0)
529
e5d7d0334fdb nginx-0.1.39-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
188 {
395
f8f0f1834266 nginx-0.0.7-2004-07-16-21:11:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 394
diff changeset
189 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
190 "SSL_CTX_set_cipher_list(\"%V\") failed",
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
191 &conf->ciphers);
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
192 }
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
193
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
194 if (conf->prefer_server_ciphers) {
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
195 SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
196 }
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
197
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
198 /* a temporary 512-bit RSA key is required for export versions of MSIE */
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
199 if (ngx_ssl_generate_rsa512_key(&conf->ssl) != NGX_OK) {
386
fa72605e7089 nginx-0.0.7-2004-07-12-01:03:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 385
diff changeset
200 return NGX_CONF_ERROR;
fa72605e7089 nginx-0.0.7-2004-07-12-01:03:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 385
diff changeset
201 }
fa72605e7089 nginx-0.0.7-2004-07-12-01:03:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 385
diff changeset
202
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
203 SSL_CTX_set_session_cache_mode(conf->ssl.ctx, SSL_SESS_CACHE_SERVER);
543
511a89da35ad nginx-0.2.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 541
diff changeset
204
547
818fbd4750b9 nginx-0.2.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 543
diff changeset
205 SSL_CTX_set_session_id_context(conf->ssl.ctx, ngx_http_session_id_ctx,
543
511a89da35ad nginx-0.2.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 541
diff changeset
206 sizeof(ngx_http_session_id_ctx) - 1);
541
b09ee85d0ac8 nginx-0.1.45-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 529
diff changeset
207
383
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
208 return NGX_CONF_OK;
c05876036128 nginx-0.0.7-2004-07-08-19:17:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
209 }