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[tor-commits] [tor/maint-0.4.6] hs-v2: Disable version 2 introduction point
commit e284b9f779e20b6afc924236f9f2fe462caa5f4c
Author: David Goulet <dgoulet@xxxxxxxxxxxxxx>
Date: Thu Sep 30 10:40:19 2021 -0400
hs-v2: Disable version 2 introduction point
Upon receiving a v2 introduction request, the relay will close the
circuit and send back a tor protocol error.
Part of #40476
Signed-off-by: David Goulet <dgoulet@xxxxxxxxxxxxxx>
---
src/feature/hs/hs_intropoint.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/feature/hs/hs_intropoint.c b/src/feature/hs/hs_intropoint.c
index 69d60f21c3..fa6b54b18a 100644
--- a/src/feature/hs/hs_intropoint.c
+++ b/src/feature/hs/hs_intropoint.c
@@ -514,7 +514,8 @@ hs_intro_received_establish_intro(or_circuit_t *circ, const uint8_t *request,
switch (first_byte) {
case TRUNNEL_HS_INTRO_AUTH_KEY_TYPE_LEGACY0:
case TRUNNEL_HS_INTRO_AUTH_KEY_TYPE_LEGACY1:
- return rend_mid_establish_intro_legacy(circ, request, request_len);
+ /* Don't accept version 2 introduction anymore. */
+ goto err;
case TRUNNEL_HS_INTRO_AUTH_KEY_TYPE_ED25519:
return handle_establish_intro(circ, request, request_len);
default:
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