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Declare a LINKAUTH subprotocol version for #15055 (ed link handshake)
Closes ticket 20552.
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changes/feature20552
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changes/feature20552
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@ -0,0 +1,4 @@
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o Minor features (ed25519 link handshake):
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- Advertise support for the ed25519 link handshake using the
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subprotocol-versions mechanism, so that clients can tell which
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relays can identity themselves by Ed25519 ID.
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@ -2247,6 +2247,10 @@ typedef struct routerstatus_t {
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* accept EXTEND2 cells */
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unsigned int supports_extend2_cells:1;
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/** True iff this router has a protocol list that allows it to negotiate
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* ed25519 identity keys on a link handshake. */
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unsigned int supports_ed25519_link_handshake:1;
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unsigned int has_bandwidth:1; /**< The vote/consensus had bw info */
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unsigned int has_exitsummary:1; /**< The vote/consensus had exit summaries */
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unsigned int bw_is_unmeasured:1; /**< This is a consensus entry, with
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@ -292,7 +292,7 @@ protover_get_supported_protocols(void)
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"HSIntro=3 "
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"HSRend=1-2 "
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"Link=1-4 "
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"LinkAuth=1 "
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"LinkAuth=1,3 "
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"Microdesc=1-2 "
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"Relay=1-2";
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}
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@ -2962,6 +2962,8 @@ routerstatus_parse_entry_from_string(memarea_t *area,
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rs->protocols_known = 1;
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rs->supports_extend2_cells =
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protocol_list_supports_protocol(tok->args[0], PRT_RELAY, 2);
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rs->supports_ed25519_link_handshake =
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protocol_list_supports_protocol(tok->args[0], PRT_LINKAUTH, 3);
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}
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if ((tok = find_opt_by_keyword(tokens, K_V))) {
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tor_assert(tok->n_args == 1);
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