Provide the initial TLSv1.3 client implementation.

Move tls13_connect() to a new tls13_client.c file and provide a legacy
wrapper to it, which allocates a struct tls_ctx if necessary. Also move
tls13_client_hello_send() to tls13_client.c and actual implement the
building of a client hello.

ok tb@

1 files changed, 7 insertions, 20 deletions

diff --git a/src/lib/libssl/tls13_handshake.c b/src/lib/libssl/tls13_handshake.c
index 78f5611b70..160202421c 100644
--- a/src/lib/libssl/tls13_handshake.c
+++ b/src/lib/libssl/tls13_handshake.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: tls13_handshake.c,v 1.17 2019/01/21 13:13:46 jsing Exp $      */
+/*      $OpenBSD: tls13_handshake.c,v 1.18 2019/01/21 13:45:57 jsing Exp $      */
 /*
  * Copyright (c) 2018-2019 Theo Buehler <tb@openbsd.org>
  * Copyright (c) 2019 Joel Sing <jsing@openbsd.org>
@@ -31,11 +31,7 @@
 struct tls13_handshake_action {
         uint8_t                 record_type;
         uint8_t                 handshake_type;
-
         uint8_t                 sender;
-#define TLS13_HS_CLIENT         1
-#define TLS13_HS_SERVER         2
-
         uint8_t                 handshake_complete;
 
         int (*send)(struct tls13_ctx *ctx);
@@ -44,7 +40,6 @@ struct tls13_handshake_action {
 
 enum tls13_message_type tls13_handshake_active_state(struct tls13_ctx *ctx);
 
-int tls13_connect(struct tls13_ctx *ctx);
 int tls13_accept(struct tls13_ctx *ctx);
 
 struct tls13_handshake_action *
@@ -313,14 +308,6 @@ tls13_handshake_perform(struct tls13_ctx *ctx)
 }
 
 int
-tls13_connect(struct tls13_ctx *ctx)
-{
-        ctx->mode = TLS13_HS_CLIENT;
-
-        return tls13_handshake_perform(ctx);
-}
-
-int
 tls13_accept(struct tls13_ctx *ctx)
 {
         ctx->mode = TLS13_HS_SERVER;
@@ -391,13 +378,13 @@ tls13_handshake_recv_action(struct tls13_ctx *ctx,
                 return TLS13_IO_FAILURE;
         }
 
-        return action->recv(ctx);
-}
+        /* XXX provide CBS and check all consumed. */
+        ret = action->recv(ctx);
 
-int
-tls13_client_hello_send(struct tls13_ctx *ctx)
-{
-        return 0;
+        tls13_handshake_msg_free(ctx->hs_msg);
+        ctx->hs_msg = NULL;
+
+        return ret;
 }
 
 int