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Merge remote-tracking branch 'public/bug4361'
Conflicts: src/or/command.c
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commit
3fc3ed50a1
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changes/bug4361
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changes/bug4361
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@ -0,0 +1,4 @@
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o Minor bugfixes:
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- Spec conformance: on a v3 handshake, do not send a NETINFO cell until
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after we have received a CERTS cell. Bugfix on 0.2.3.6-alpha;
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fixes bug 4361; patch by "frosty".
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@ -728,10 +728,9 @@ command_process_versions_cell(var_cell_t *cell, or_connection_t *conn)
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const int send_certs = !started_here || public_server_mode(get_options());
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/* If we're a relay that got a connection, ask for authentication. */
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const int send_chall = !started_here && public_server_mode(get_options());
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/* If our certs cell will authenticate us, or if we have no intention of
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* authenticating, send a netinfo cell right now. */
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const int send_netinfo =
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!(started_here && public_server_mode(get_options()));
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/* If our certs cell will authenticate us, we can send a netinfo cell
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* right now. */
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const int send_netinfo = !started_here;
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const int send_any =
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send_versions || send_certs || send_chall || send_netinfo;
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tor_assert(conn->link_proto >= 3);
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@ -958,6 +957,7 @@ command_process_certs_cell(var_cell_t *cell, or_connection_t *conn)
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uint8_t *ptr;
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int n_certs, i;
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int send_netinfo = 0;
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if (conn->_base.state != OR_CONN_STATE_OR_HANDSHAKING_V3)
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ERR("We're not doing a v3 handshake!");
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@ -1072,6 +1072,13 @@ command_process_certs_cell(var_cell_t *cell, or_connection_t *conn)
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conn->handshake_state->id_cert = id_cert;
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id_cert = NULL;
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if (!public_server_mode(get_options())) {
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/* If we initiated the connection and we are not a public server, we
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* aren't planning to authenticate at all. At this point we know who we
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* are talking to, so we can just send a netinfo now. */
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send_netinfo = 1;
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}
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} else {
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if (! (id_cert && auth_cert))
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ERR("The certs we wanted were missing");
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@ -1093,6 +1100,15 @@ command_process_certs_cell(var_cell_t *cell, or_connection_t *conn)
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}
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conn->handshake_state->received_certs_cell = 1;
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if (send_netinfo) {
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if (connection_or_send_netinfo(conn) < 0) {
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log_warn(LD_OR, "Couldn't send netinfo cell");
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connection_mark_for_close(TO_CONN(conn));
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goto err;
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}
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}
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err:
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tor_cert_free(id_cert);
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tor_cert_free(link_cert);
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