crypt_path_t Struct Reference

#include <crypt_path_st.h>

Public Member Functions
relay_crypto_t	CRYPT_PATH_PRIV_FIELD (crypto)

Data Fields
uint32_t	magic
onion_handshake_state_t	handshake_state
struct crypto_dh_t *	rend_dh_handshake_state
char	rend_circ_nonce [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

Detailed Description

Holds accounting information for a single step in the layered encryption performed by a circuit. Used only at the client edge of a circuit.

Definition at line 47 of file crypt_path_st.h.

Member Function Documentation

CRYPT_PATH_PRIV_FIELD()

relay_crypto_t CRYPT_PATH_PRIV_FIELD

(

crypto

)

Private member: Cryptographic state used for encrypting and authenticating relay cells to and from this hop.

Field Documentation

deliver_window

int deliver_window

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

Definition at line 80 of file crypt_path_st.h.

Referenced by sendme_circuit_consider_sending().

extend_info

extend_info_t* extend_info

Information to extend to the OR at this step.

Definition at line 61 of file crypt_path_st.h.

Referenced by build_middle_exclude_list(), build_vanguard_middle_exclude_list(), circuit_cpath_supports_ntor(), circuit_handle_first_hop(), connection_ap_get_begincell_flags(), pathbias_count_circs_in_states(), pathbias_count_collapse(), pathbias_count_successful_close(), pathbias_count_timeout(), pathbias_count_use_failed(), and should_use_create_fast_for_circuit().

handshake_state

onion_handshake_state_t handshake_state

Current state of the handshake as performed with the OR at this step.

Definition at line 52 of file crypt_path_st.h.

Referenced by cpath_free().

next

struct crypt_path_t* next

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

Definition at line 72 of file crypt_path_st.h.

Referenced by build_middle_exclude_list(), build_vanguard_middle_exclude_list(), circuit_clear_cpath(), circuit_get_cpath_hop(), circuit_get_cpath_len(), cpath_extend_linked_list(), cpath_is_on_circuit(), and pathbias_is_new_circ_attempt().

package_window

int package_window

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

Definition at line 78 of file crypt_path_st.h.

prev

struct crypt_path_t* prev

Link to previous crypt_path_t in the circuit.

Definition at line 75 of file crypt_path_st.h.

Referenced by connection_exit_begin_conn(), cpath_extend_linked_list(), pathbias_send_usable_probe(), rend_process_relay_cell(), and send_establish_intro().

rend_circ_nonce

char rend_circ_nonce[DIGEST_LEN]

Negotiated key material shared with the OR at this step.

Definition at line 58 of file crypt_path_st.h.

Referenced by send_establish_intro().

rend_dh_handshake_state

struct crypto_dh_t* rend_dh_handshake_state

Diffie-hellman handshake state for performing an introduction operations

Definition at line 55 of file crypt_path_st.h.

state

uint8_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)

Definition at line 68 of file crypt_path_st.h.

Referenced by circpad_send_command_to_hop(), circuit_get_cpath_opened_len(), circuit_get_nth_node(), circuit_list_path_impl(), circuit_send_next_onion_skin(), cpath_assert_ok(), cpath_get_next_non_open_hop(), finalize_rend_circuit(), pathbias_is_new_circ_attempt(), pathbias_send_usable_probe(), and relay_decrypt_cell().

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

• core/or/crypt_path_st.h