trunnel: Add prop224 RENDEZVOUS1 cell definition

Signed-off-by: David Goulet <dgoulet@torproject.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/src/trunnel/hs/cell_rendezvous.trunnel b/src/trunnel/hs/cell_rendezvous.trunnel
new file mode 100644
index 0000000000..27f1728b4a
--- /dev/null
+++ b/src/trunnel/hs/cell_rendezvous.trunnel
@@ -0,0 +1,18 @@
+/*
+ * This contains the definition of the RENDEZVOUS1 cell for onion service
+ * version 3 and onward. The following format is specified in proposal 224
+ * section 4.2.
+ */
+
+/* Rendezvous cookie length. */
+const TRUNNEL_REND_COOKIE_LEN = 20;
+
+/* RENDEZVOUS1 payload. See details in section 4.2. */
+struct trn_cell_rendezvous1 {
+  /* The RENDEZVOUS_COOKIE field. */
+  u8 rendezvous_cookie[TRUNNEL_REND_COOKIE_LEN];
+  
+  /* The HANDSHAKE_INFO field which has a variable length depending on the
+   * handshake type used. */
+  u8 handshake_info[];
+};