[PATCH 2 of 3] QUIC: relocated early streams initialization

[Roman Arutyunyan]

# HG changeset patch
# User Roman Arutyunyan <arut at nginx.com>
# Date 1654177819 -14400
#      Thu Jun 02 17:50:19 2022 +0400
# Branch quic
# Node ID d3857a6df35c7a1d063e1a5776b6392afde16db2
# Parent  617ec472690620cc75c473f97555138a4bc7d38b
QUIC: relocated early streams initialization.

Previously, early streams initialization took place right after receiving early
data keys.  Now it's done after successful decryption of the first early data
packet.

The changes allows to perform operations in the streams initializer function,
which require client transport parameters.  An example of such operation is
creating a server stream.

diff --git a/src/event/quic/ngx_event_quic.c b/src/event/quic/ngx_event_quic.c
--- a/src/event/quic/ngx_event_quic.c
+++ b/src/event/quic/ngx_event_quic.c
@@ -1032,6 +1032,12 @@ ngx_quic_handle_payload(ngx_connection_t
         return ngx_quic_send_cc(c);
     }
 
+    if (pkt->level == ssl_encryption_early_data) {
+        if (ngx_quic_init_streams(c) != NGX_OK) {
+            return NGX_ERROR;
+        }
+    }
+
     pkt->received = ngx_current_msec;
 
     c->log->action = "handling payload";
diff --git a/src/event/quic/ngx_event_quic_ssl.c b/src/event/quic/ngx_event_quic_ssl.c
--- a/src/event/quic/ngx_event_quic_ssl.c
+++ b/src/event/quic/ngx_event_quic_ssl.c
@@ -80,12 +80,6 @@ ngx_quic_set_read_secret(ngx_ssl_conn_t 
         return 0;
     }
 
-    if (level == ssl_encryption_early_data) {
-        if (ngx_quic_init_streams(c) != NGX_OK) {
-            return 0;
-        }
-    }
-
     return 1;
 }
 
@@ -150,14 +144,6 @@ ngx_quic_set_encryption_secrets(ngx_ssl_
         return 0;
     }
 
-    if (level == ssl_encryption_early_data) {
-        if (ngx_quic_init_streams(c) != NGX_OK) {
-            return 0;
-        }
-
-        return 1;
-    }
-
 #ifdef NGX_QUIC_DEBUG_CRYPTO
     ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
                    "quic write secret len:%uz %*xs", secret_len,