Propagate tlsext_status_type from SSL_CTX to SSL

To allow OCSP stapling to work with libcurl.

Github PR #200
Reviewed-by: NRich Salz <rsalz@openssl.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>

include/openssl/tls1.h

@@ -394,6 +394,9 @@ SSL_CTX_callback_ctrl(ssl,SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB,(void (*)(void))cb)
 # define SSL_CTX_set_tlsext_status_arg(ssl, arg) \
 SSL_CTX_ctrl(ssl,SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB_ARG,0, (void *)arg)
 
+#define SSL_CTX_set_tlsext_status_type(ssl, type) \
+        SSL_CTX_ctrl(ssl, SSL_CTRL_SET_TLSEXT_STATUS_REQ_TYPE, type, NULL)
+
 # define SSL_CTX_set_tlsext_ticket_key_cb(ssl, cb) \
 SSL_CTX_callback_ctrl(ssl,SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB,(void (*)(void))cb)
 

ssl/s3_lib.c

@@ -3413,6 +3413,10 @@ long ssl3_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
             return 1;
         }
 
+    case SSL_CTRL_SET_TLSEXT_STATUS_REQ_TYPE:
+        ctx->tlsext_status_type = larg;
+        break;
+
     case SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB_ARG:
         ctx->tlsext_status_arg = parg;
         return 1;

ssl/ssl_lib.c

@@ -693,7 +693,7 @@ SSL *SSL_new(SSL_CTX *ctx)
     s->tlsext_debug_cb = 0;
     s->tlsext_debug_arg = NULL;
     s->tlsext_ticket_expected = 0;
-    s->tlsext_status_type = -1;
+    s->tlsext_status_type = ctx->tlsext_status_type;
     s->tlsext_status_expected = 0;
     s->tlsext_ocsp_ids = NULL;
     s->tlsext_ocsp_exts = NULL;
@@ -2502,6 +2502,8 @@ SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
      */
     ret->options |= SSL_OP_NO_COMPRESSION;
 
+    ret->tlsext_status_type = -1;
+
     return ret;
  err:
     SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);

ssl/ssl_locl.h

@@ -953,6 +953,10 @@ struct ssl_ctx_st {
     size_t tlsext_ellipticcurvelist_length;
     unsigned char *tlsext_ellipticcurvelist;
 #  endif                        /* OPENSSL_NO_EC */
+
+    /* ext status type used for CSR extension (OCSP Stapling) */
+    int tlsext_status_type;
+
     CRYPTO_RWLOCK *lock;
 };