crypt_path_t Struct Reference

Current state of 'fast' (non-PK) key negotiation with the OR at this step. Used to save CPU when TLS is already providing all the authentication, secrecy, and integrity we need, and we're already distinguishable from an OR.

Referenced by circuit_finish_handshake(), and circuit_send_next_onion_skin().

char crypt_path_t::handshake_digest[DIGEST_LEN]

Negotiated key material shared with the OR at this step.

Referenced by circuit_finish_handshake(), rend_service_intro_has_opened(), rend_service_introduce(), and rend_service_rendezvous_has_opened().

extend_info_t* crypt_path_t::extend_info

Information to extend to the OR at this step.

Referenced by circuit_build_failed(), circuit_conforms_to_options(), circuit_find_to_cannibalize(), circuit_free_cpath_node(), circuit_handle_first_hop(), circuit_list_path_impl(), circuit_rep_hist_note_result(), circuit_send_next_onion_skin(), connection_ap_expire_beginning(), onion_append_hop(), and should_use_create_fast_for_circuit().

uint8_t crypt_path_t::state

Is the circuit built to this step? Must be one of:

CPATH_STATE_CLOSED (The circuit has not been extended to this step)
CPATH_STATE_AWAITING_KEYS (We have sent an EXTEND/CREATE to this step and not received an EXTENDED/CREATED)
CPATH_STATE_OPEN (The circuit has been extended to this step)

Referenced by assert_cpath_layer_ok(), assert_cpath_ok(), circuit_build_failed(), circuit_expire_building(), circuit_finish_handshake(), circuit_list_path_impl(), circuit_rep_hist_note_result(), circuit_send_next_onion_skin(), link_apconn_to_circ(), onion_append_hop(), onion_next_hop_in_cpath(), relay_crypt(), rend_client_receive_rendezvous(), and rend_service_rendezvous_has_opened().

struct crypt_path_t* crypt_path_t::next [read]

Link to next crypt_path_t in the circuit. (The list is circular, so the last node links to the first.)

Referenced by assert_cpath_ok(), choose_good_middle_server(), circuit_conforms_to_options(), circuit_find_to_cannibalize(), circuit_free_cpath(), circuit_get_cpath_hop(), circuit_get_cpath_len(), circuit_list_path_impl(), circuit_rep_hist_note_result(), circuit_truncated(), cpath_is_on_circuit(), onion_append_to_cpath(), onion_next_hop_in_cpath(), and relay_crypt().

struct crypt_path_t* crypt_path_t::prev [read]

Link to previous crypt_path_t in the circuit.

Referenced by assert_cpath_ok(), circuit_build_failed(), circuit_package_relay_cell(), circuit_send_next_onion_skin(), connection_exit_begin_conn(), link_apconn_to_circ(), onion_append_to_cpath(), rend_client_send_establish_rendezvous(), rend_process_relay_cell(), rend_service_intro_has_opened(), rend_service_rendezvous_has_opened(), and router_perform_bandwidth_test().

int crypt_path_t::package_window

How many cells are we allowed to originate ending at this step?

Referenced by assert_cpath_layer_ok(), circuit_consider_stop_edge_reading(), connection_edge_package_raw_inbuf(), connection_edge_process_relay_cell(), onion_append_hop(), rend_client_receive_rendezvous(), and rend_service_rendezvous_has_opened().

int crypt_path_t::deliver_window

How many cells are we willing to deliver originating at this step?

Referenced by assert_cpath_layer_ok(), circuit_consider_sending_sendme(), connection_edge_process_relay_cell(), onion_append_hop(), rend_client_receive_rendezvous(), and rend_service_rendezvous_has_opened().

The documentation for this struct was generated from the following file:

or.h


Data Fields
uint32_t	magic
crypto_cipher_env_t *	f_crypto
crypto_cipher_env_t *	b_crypto
crypto_digest_env_t *	f_digest
crypto_digest_env_t *	b_digest
crypto_dh_env_t *	dh_handshake_state
char	fast_handshake_state [DIGEST_LEN]
char	handshake_digest [DIGEST_LEN]
extend_info_t *	extend_info
uint8_t	state
struct crypt_path_t *	next
struct crypt_path_t *	prev
int	package_window
int	deliver_window