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Diffstat (limited to 'tor-spec.txt')
| -rw-r--r-- | tor-spec.txt | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tor-spec.txt b/tor-spec.txt index 3f909cd..d9940bc 100644 --- a/tor-spec.txt +++ b/tor-spec.txt @@ -360,6 +360,8 @@ TODO: (very soon) 8 -- RELAY_TRUNCATE 9 -- RELAY_TRUNCATED 10 -- RELAY_DROP + 11 -- RELAY_RESOLVE + 12 -- RELAY_RESOLVED The 'Recognized' field in any unencrypted relay payload is always set to zero; the 'digest' field is computed as the first four bytes @@ -465,6 +467,26 @@ TODO: (very soon) If an edge node encounters an error on any stream, it sends a 'RELAY_END' cell (if possible) and closes the stream immediately. +5.4. Remote hostname lookup + + To find the address associated with a hostname, the OP sends a + RELAY_RESOLVE cell containing the hostname to be resolved. The OR + replies with an RELAY_RESOLVED cell containing a status byte, and any + number of answers. Each answer is of the form: + Type (1 octet) + Length (1 octet) + Value (variable-width) + "Length" is the length of the Value field. "Type" is one of: + 0x04 -- IPv4 address + 0x06 -- IPv6 address + 0xF0 -- Error, transient + 0xF1 -- Error, nontransient + + If any answer has a type of 'Error', then no other answer may be given. + + The RELAY_RESOLVE cell must use a nonzero, distinct streamID; the + corresponding RELAY_RESOLVED cell must use the same streamID. No stream + is actually created by the OR when resolving the name. 6. Flow control |