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Remove support for deciding to use CREATE/EXTEND/TAP.

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This commit is contained in:
Nick Mathewson 2024-06-24 13:54:26 -04:00
parent f6f2d5c4a0
commit f631145cbf
1 changed files with 10 additions and 24 deletions
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34
src/core/or/circuitbuild.c
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@ -889,20 +889,14 @@ circuit_pick_create_handshake(uint8_t *cell_type_out,
{
/* torspec says: In general, clients SHOULD use CREATE whenever they are
* using the TAP handshake, and CREATE2 otherwise. */
if (extend_info_supports_ntor(ei)) {
*cell_type_out = CELL_CREATE2;
/* Only use ntor v3 with exits that support congestion control,
* and only when it is enabled. */
if (ei->exit_supports_congestion_control &&
congestion_control_enabled())
*handshake_type_out = ONION_HANDSHAKE_TYPE_NTOR_V3;
else
*handshake_type_out = ONION_HANDSHAKE_TYPE_NTOR;
} else {
/* XXXX030 Remove support for deciding to use TAP and EXTEND. */
*cell_type_out = CELL_CREATE;
*handshake_type_out = ONION_HANDSHAKE_TYPE_TAP;
}
*cell_type_out = CELL_CREATE2;
/* Only use ntor v3 with exits that support congestion control,
* and only when it is enabled. */
if (ei->exit_supports_congestion_control &&
congestion_control_enabled())
*handshake_type_out = ONION_HANDSHAKE_TYPE_NTOR_V3;
else
*handshake_type_out = ONION_HANDSHAKE_TYPE_NTOR;
}
/** Decide whether to use a TAP or ntor handshake for extending to <b>ei</b>
@ -923,16 +917,8 @@ circuit_pick_extend_handshake(uint8_t *cell_type_out,
uint8_t t;
circuit_pick_create_handshake(&t, handshake_type_out, ei);
/* torspec says: Clients SHOULD use the EXTEND format whenever sending a TAP
* handshake... In other cases, clients SHOULD use EXTEND2. */
if (*handshake_type_out != ONION_HANDSHAKE_TYPE_TAP) {
*cell_type_out = RELAY_COMMAND_EXTEND2;
*create_cell_type_out = CELL_CREATE2;
} else {
/* XXXX030 Remove support for deciding to use TAP and EXTEND. */
*cell_type_out = RELAY_COMMAND_EXTEND;
*create_cell_type_out = CELL_CREATE;
}
*cell_type_out = RELAY_COMMAND_EXTEND2;
*create_cell_type_out = CELL_CREATE2;
}
/**