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Make the two rendezvous service descriptor formats distinguishable to simplify the directory interactions a bit.

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svn:r4494
This commit is contained in:
Nick Mathewson 2005-06-27 20:43:07 +00:00
parent 275966abe3
commit 68d706a9b0
1 changed files with 8 additions and 11 deletions
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19
doc/rend-spec.txt
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@ -114,11 +114,12 @@ $Id$
The "V1" descriptor contains:
V Format byte: set to 255 [1 octet]
V Version byte: set to 1 [1 octet]
KL Key length [2 octets]
PK Bob's public key [KL octets]
TS A timestamp [4 octets]
PROTO Protocol version: bitmask [2 octets]
PROTO Protocol versions: bitmask [2 octets]
NI Number of introduction points [2 octets]
For each introduction point: (as in INTRODUCE2 cells)
IP Rendezvous point's address [4 octets]
@ -184,11 +185,8 @@ $Id$
Bob's OP opens a stream to each directory server's directory port via Tor.
(He may re-use old circuits for this.) Over this stream, Bob's OP makes
an HTTP 'POST' request, to a URL relative to the directory server's root,
containing as its body Bob's service descriptor.
For "V1" descriptors, the URL is /tor/rendezvous1/publish
For "V0" descriptors, the URL is /tor/rendezvous/publish
an HTTP 'POST' request, to a URL "/tor/rendezvous/publish" relative to the
directory server's root, containing as its body Bob's service descriptor.
Upon receiving a descriptor, the directory server checks the signature,
and discards the descriptor if the signature does not match the enclosed
@ -226,11 +224,10 @@ $Id$
where '<y> is replaced with the encoding of Bob's public key as described
above. (She may re-use old circuits for this.) The directory replies with
a 404 HTTP response if it does not recognize <y>, and otherwise returns
Bob's most recently uploaded service descriptor of the appropriate
version.
(Alice should try to fetch the V1 descriptor first, and only try to fetch
a V0 descriptor if it is not available.)
Bob's most recently uploaded service descriptor. (If Alice requests
'rendezvous1', the directory server provides a V1 descriptor or a V0
descriptor if no V1 descriptor is available. If Alice requests
'rendezvous', the directory server returns a V0 descriptor.)
If Alice's OP receives a 404 response, it tries the other directory
servers, and only fails the lookup if none recognizes the public key hash.