r16670@catbus: nickm | 2007-11-14 14:56:30 -0500

 Initial phase of proposal 110: accept RELAY_EARLY cells, and turn them into RELAY cells when sending them on over a v1 OR connection.


svn:r12496

3 files changed, 6 insertions, 0 deletions

diff --git a/src/or/command.c b/src/or/command.c
index 9dc8408a87..b882878ee1 100644
--- a/src/or/command.c
+++ b/src/or/command.c
@@ -136,6 +136,7 @@ command_process_cell(cell_t *cell, or_connection_t *conn)
       PROCESS_CELL(created, cell, conn);
       break;
     case CELL_RELAY:
+    case CELL_RELAY_EARLY:
       ++stats_n_relay_cells_processed;
       PROCESS_CELL(relay, cell, conn);
       break;
diff --git a/src/or/or.h b/src/or/or.h
index 263e7c420a..a87d95ed7a 100644
--- a/src/or/or.h
+++ b/src/or/or.h
@@ -659,6 +659,7 @@ typedef enum {
 #define CELL_NETINFO 8
 #define CELL_CERT 9
 #define CELL_LINK_AUTH 10
+#define CELL_RELAY_EARLY 11 /*DOCDOC*/
 
 #define CELL_COMMAND_IS_VAR_LENGTH(x) \
   ((x) == CELL_CERT || (x) == CELL_VERSIONS)
diff --git a/src/or/relay.c b/src/or/relay.c
index d9ca3760f9..95d30a9842 100644
--- a/src/or/relay.c
+++ b/src/or/relay.c
@@ -1890,6 +1890,10 @@ append_cell_to_circuit_queue(circuit_t *circ, or_connection_t *orconn,
     queue = &orcirc->p_conn_cells;
     streams_blocked = circ->streams_blocked_on_p_conn;
   }
+  if (cell->command == CELL_RELAY_EARLY && orconn->link_proto < 2) {
+    /* V1 connections don't understand RELAY_EARLY. */
+    cell->command = CELL_RELAY;
+  }
 
   cell_queue_append_packed_copy(queue, cell);