[tor-commits] [tor/release-0.4.5] relay: Send back CONNECTION_REFUSED on reentry

[dgoulet@xxxxxxxxxxxxxx]

commit 387d1d8835df1bffa71e5157c41cb856c5f18d7d
Author: David Goulet <dgoulet@xxxxxxxxxxxxxx>
Date:   Mon Feb 1 12:45:32 2021 -0500

    relay: Send back CONNECTION_REFUSED on reentry
    
    The TORPROTOCOL reason causes the client to close the circuit which is not
    what we want because other valid streams might be on it.
    
    Instead, CONNECTION_REFUSED will leave it open but will not allow more streams
    to be attached to it. The client then open a new circuit to the destination.
    
    Closes #40270
    
    Signed-off-by: David Goulet <dgoulet@xxxxxxxxxxxxxx>
---
 src/core/or/connection_edge.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/or/connection_edge.c b/src/core/or/connection_edge.c
index da5431c47e..04005b29a6 100644
--- a/src/core/or/connection_edge.c
+++ b/src/core/or/connection_edge.c
@@ -4293,7 +4293,7 @@ connection_exit_connect(edge_connection_t *edge_conn)
       nodelist_reentry_probably_contains(&conn->addr, conn->port)) {
     log_info(LD_EXIT, "%s tried to connect back to a known relay address. "
                       "Closing.", connection_describe(conn));
-    connection_edge_end(edge_conn, END_STREAM_REASON_TORPROTOCOL);
+    connection_edge_end(edge_conn, END_STREAM_REASON_CONNECTREFUSED);
     circuit_detach_stream(circuit_get_by_edge_conn(edge_conn), edge_conn);
     connection_free(conn);
     return;



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