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diff src/event/quic/ngx_event_quic_protection.c @ 8683:de7b9af30fc6 quic

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QUIC: refactored packet creation. The "min" and "max" arguments refer to UDP datagram size. Generating payload requires to account properly for header size, which is variable and depends on payload size and packet number.
author Vladimir Homutov <vl@nginx.com>
date Thu, 07 Oct 2021 13:48:29 +0300
parents 6d1488b62dc5
children 3341e4089c6c
line wrap: on
line diff
--- a/src/event/quic/ngx_event_quic_protection.c
+++ b/src/event/quic/ngx_event_quic_protection.c
@@ -836,11 +836,10 @@ ngx_quic_create_packet(ngx_quic_header_t
     ngx_quic_ciphers_t   ciphers;
     u_char               nonce[NGX_QUIC_IV_LEN], mask[NGX_QUIC_HP_LEN];
 
-    out.len = pkt->payload.len + EVP_GCM_TLS_TAG_LEN;
+    ad.data = res->data;
+    ad.len = ngx_quic_create_header(pkt, ad.data, &pnp);
 
-    ad.data = res->data;
-    ad.len = ngx_quic_create_header(pkt, ad.data, out.len, &pnp);
-
+    out.len = pkt->payload.len + EVP_GCM_TLS_TAG_LEN;
     out.data = res->data + ad.len;
 
 #ifdef NGX_QUIC_DEBUG_CRYPTO