[nginx] SSL: compatibility with OpenSSL master branch.

[Maxim Dounin]

details:   http://hg.nginx.org/nginx/rev/b40af2fd1c16
branches:  
changeset: 6255:b40af2fd1c16
user:      Maxim Dounin <mdounin at mdounin.ru>
date:      Thu Sep 24 17:19:08 2015 +0300
description:
SSL: compatibility with OpenSSL master branch.

RAND_pseudo_bytes() is deprecated in the OpenSSL master branch, so the only
use was changed to RAND_bytes().  Access to internal structures is no longer
possible, so now we don't try to set SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS even
if it's defined.

diffstat:

 src/event/ngx_event_openssl.c |  4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diffs (28 lines):

diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -1158,6 +1158,7 @@ ngx_ssl_handshake(ngx_connection_t *c)
         c->recv_chain = ngx_ssl_recv_chain;
         c->send_chain = ngx_ssl_send_chain;
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 #ifdef SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS
 
         /* initial handshake done, disable renegotiation (CVE-2009-3555) */
@@ -1166,6 +1167,7 @@ ngx_ssl_handshake(ngx_connection_t *c)
         }
 
 #endif
+#endif
 
         return NGX_OK;
     }
@@ -2861,7 +2863,7 @@ ngx_ssl_session_ticket_key_callback(ngx_
                        ngx_hex_dump(buf, key[0].name, 16) - buf, buf,
                        SSL_session_reused(ssl_conn) ? "reused" : "new");
 
-        RAND_pseudo_bytes(iv, 16);
+        RAND_bytes(iv, 16);
         EVP_EncryptInit_ex(ectx, EVP_aes_128_cbc(), NULL, key[0].aes_key, iv);
         HMAC_Init_ex(hctx, key[0].hmac_key, 16,
                      ngx_ssl_session_ticket_md(), NULL);