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Make bridges send AUTH_CHALLENGE cells

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The spec requires them to do so, and not doing so creates a situation
where they can't send-test because relays won't extend to them because
of the other part of bug 9546.

Fixes bug 9546; bugfix on 0.2.3.6-alpha.
This commit is contained in:
Nick Mathewson 2013-08-21 10:10:35 -04:00
parent 0daa26a473
commit 940cef3367
4 changed files with 14 additions and 8 deletions
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5
bug9546
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@ -1,5 +0,0 @@
o Major bugfixes:
- When a relay is extending a circuit to a bridge, it needs to send a
NETINFO cell, even when the bridge hasn't sent an AUTH_CHALLENGE
cell. Fixes bug 9546; bugfix on ????.

11
changes/bug9546 Normal file
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@ -0,0 +1,11 @@
o Major bugfixes:
- When a relay is extending a circuit to a bridge, it needs to send a
NETINFO cell, even when the bridge hasn't sent an AUTH_CHALLENGE
cell. Fixes bug 9546; bugfix on 0.2.3.6-alpha.
- Bridges send AUTH_CHALLENGE cells during their handshakes; previously
they did not, which prevented relays from successfully connecting
to a bridge for self-test or bandwidth testing. Fixes bug 9546;
bugfix on 0.2.3.6-alpha.

4
src/or/command.c
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@ -755,8 +755,8 @@ command_process_versions_cell(var_cell_t *cell, or_connection_t *conn)
const int send_versions = !started_here;
/* If we want to authenticate, send a CERTS cell */
const int send_certs = !started_here || public_server_mode(get_options());
/* If we're a relay that got a connection, ask for authentication. */
const int send_chall = !started_here && public_server_mode(get_options());
/* If we're a host that got a connection, ask for authentication. */
const int send_chall = !started_here;
/* If our certs cell will authenticate us, we can send a netinfo cell
* right now. */
const int send_netinfo = !started_here;

2
src/or/connection_or.c
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@ -2144,7 +2144,7 @@ connection_or_compute_authenticate_cell_body(or_connection_t *conn,
const tor_cert_t *id_cert=NULL, *link_cert=NULL;
const digests_t *my_digests, *their_digests;
const uint8_t *my_id, *their_id, *client_id, *server_id;
if (tor_tls_get_my_certs(0, &link_cert, &id_cert))
if (tor_tls_get_my_certs(server, &link_cert, &id_cert))
return -1;
my_digests = tor_cert_get_id_digests(id_cert);
their_digests = tor_cert_get_id_digests(conn->handshake_state->id_cert);