ECDHE support

patch by Adrian Kotelba

1 files changed, 13 insertions, 1 deletions

diff --git a/src/mail/ngx_mail_ssl_module.c b/src/mail/ngx_mail_ssl_module.c
index da91d37ce..5767a2fd4 100644
--- a/src/mail/ngx_mail_ssl_module.c
+++ b/src/mail/ngx_mail_ssl_module.c
@@ -9,7 +9,8 @@
 #include <ngx_mail.h>
 
 
-#define NGX_DEFAULT_CIPHERS  "HIGH:!aNULL:!MD5"
+#define NGX_DEFAULT_CIPHERS     "HIGH:!aNULL:!MD5"
+#define NGX_DEFAULT_ECDH_CURVE  "prime256v1"
 
 
 static void *ngx_mail_ssl_create_conf(ngx_conf_t *cf);
@@ -77,6 +78,13 @@ static ngx_command_t  ngx_mail_ssl_commands[] = {
       offsetof(ngx_mail_ssl_conf_t, dhparam),
       NULL },
 
+    { ngx_string("ssl_ecdh_curve"),
+      NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
+      ngx_conf_set_str_slot,
+      NGX_MAIL_SRV_CONF_OFFSET,
+      offsetof(ngx_mail_ssl_conf_t, ecdh_curve),
+      NULL },
+
     { ngx_string("ssl_protocols"),
       NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE,
       ngx_conf_set_bitmask_slot,
@@ -163,6 +171,7 @@ ngx_mail_ssl_create_conf(ngx_conf_t *cf)
      *     scf->certificate = { 0, NULL };
      *     scf->certificate_key = { 0, NULL };
      *     scf->dhparam = { 0, NULL };
+     *     scf->ecdh_curve = { 0, NULL };
      *     scf->ciphers = { 0, NULL };
      *     scf->shm_zone = NULL;
      */
@@ -204,6 +213,9 @@ ngx_mail_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child)
 
     ngx_conf_merge_str_value(conf->dhparam, prev->dhparam, "");
 
+    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);