QUIC DISPATCH/APL: Implement SSL_get_stream_id

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20765)

2 files changed, 26 insertions, 0 deletions

diff --git a/ssl/quic/quic_impl.c b/ssl/quic/quic_impl.c
index 2f97f7c6b5..6a28c00c75 100644
--- a/ssl/quic/quic_impl.c
+++ b/ssl/quic/quic_impl.c
@@ -1868,6 +1868,20 @@ int ossl_quic_get_stream_type(SSL *s)
 }
 
 /*
+ * SSL_get_stream_id
+ * -----------------
+ */
+uint64_t ossl_quic_get_stream_id(SSL *s)
+{
+    QCTX ctx;
+
+    if (!expect_quic_with_stream(s, /*remote_init=*/-1, &ctx))
+        return UINT64_MAX;
+
+    return ctx.xso->stream->id;
+}
+
+/*
  * QUIC Front-End I/O API: SSL_CTX Management
  * ==========================================
  */
diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c
index 5a226312da..a7e3682291 100644
--- a/ssl/ssl_lib.c
+++ b/ssl/ssl_lib.c
@@ -7340,6 +7340,18 @@ int SSL_get_stream_type(SSL *s)
 #endif
 }
 
+uint64_t SSL_get_stream_id(SSL *s)
+{
+#ifndef OPENSSL_NO_QUIC
+    if (!IS_QUIC(s))
+        return UINT64_MAX;
+
+    return ossl_quic_get_stream_id(s);
+#else
+    return UINT64_MAX;
+#endif
+}
+
 int SSL_add_expected_rpk(SSL *s, EVP_PKEY *rpk)
 {
     unsigned char *data = NULL;