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hs-v2: Disable version 2 introduction point

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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@torproject.org>
This commit is contained in:
David Goulet 2021-09-30 10:40:19 -04:00
parent 471149b651
commit e284b9f779
1 changed files with 2 additions and 1 deletions
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3
src/feature/hs/hs_intropoint.c
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@ -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: