ECDHE support

patch by Adrian Kotelba

1 files changed, 17 insertions, 1 deletions

diff --git a/src/http/modules/ngx_http_ssl_module.c b/src/http/modules/ngx_http_ssl_module.c
index 52c9196ce..120a858df 100644
--- a/src/http/modules/ngx_http_ssl_module.c
+++ b/src/http/modules/ngx_http_ssl_module.c
@@ -13,7 +13,8 @@ typedef ngx_int_t (*ngx_ssl_variable_handler_pt)(ngx_connection_t *c,
     ngx_pool_t *pool, ngx_str_t *s);
 
 
-#define NGX_DEFAULT_CIPHERS  "HIGH:!aNULL:!MD5"
+#define NGX_DEFAULT_CIPHERS     "HIGH:!aNULL:!MD5"
+#define NGX_DEFAULT_ECDH_CURVE  "prime256v1"
 
 
 static ngx_int_t ngx_http_ssl_static_variable(ngx_http_request_t *r,
@@ -78,6 +79,13 @@ static ngx_command_t  ngx_http_ssl_commands[] = {
       offsetof(ngx_http_ssl_srv_conf_t, dhparam),
       NULL },
 
+    { ngx_string("ssl_ecdh_curve"),
+      NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
+      ngx_conf_set_str_slot,
+      NGX_HTTP_SRV_CONF_OFFSET,
+      offsetof(ngx_http_ssl_srv_conf_t, ecdh_curve),
+      NULL },
+
     { ngx_string("ssl_protocols"),
       NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_1MORE,
       ngx_conf_set_bitmask_slot,
@@ -312,6 +320,7 @@ ngx_http_ssl_create_srv_conf(ngx_conf_t *cf)
      *     sscf->certificate = { 0, NULL };
      *     sscf->certificate_key = { 0, NULL };
      *     sscf->dhparam = { 0, NULL };
+     *     sscf->ecdh_curve = { 0, NULL };
      *     sscf->client_certificate = { 0, NULL };
      *     sscf->crl = { 0, NULL };
      *     sscf->ciphers = { 0, NULL };
@@ -360,6 +369,9 @@ ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
                          "");
     ngx_conf_merge_str_value(conf->crl, prev->crl, "");
 
+    ngx_conf_merge_str_value(conf->ecdh_curve, prev->ecdh_curve,
+                         NGX_DEFAULT_ECDH_CURVE);
+
     ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFAULT_CIPHERS);
 
 
@@ -471,6 +483,10 @@ ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
         return NGX_CONF_ERROR;
     }
 
+    if (ngx_ssl_ecdh_curve(cf, &conf->ssl, &conf->ecdh_curve) != NGX_OK) {
+        return NGX_CONF_ERROR;
+    }
+
     ngx_conf_merge_value(conf->builtin_session_cache,
                          prev->builtin_session_cache, NGX_SSL_NONE_SCACHE);