edge_connection_t Struct Reference

#include <edge_connection_st.h>

Data Fields
connection_t	base_
struct edge_connection_t *	next_stream
int	package_window
int	deliver_window
struct circuit_t *	on_circuit
struct crypt_path_t *	cpath_layer
struct hs_ident_edge_conn_t *	hs_ident
uint32_t	address_ttl
uint32_t	begincell_flags
streamid_t	stream_id
uint16_t	end_reason
uint32_t	n_read
uint32_t	n_written
unsigned int	is_dns_request:1
unsigned int	is_reverse_dns_lookup:1
unsigned int	edge_has_sent_end:1
unsigned int	edge_blocked_on_circ:1
uint64_t	dirreq_id

Detailed Description

Subtype of connection_t for an "edge connection" – that is, an entry (ap) connection, or an exit.

Definition at line 21 of file edge_connection_st.h.

Field Documentation

address_ttl

uint32_t address_ttl

TTL for address-to-addr mapping on exit connection. Exit connections only.

Definition at line 42 of file edge_connection_st.h.

Referenced by send_resolved_cell(), and set_exitconn_info_from_resolve().

cpath_layer

struct crypt_path_t* cpath_layer

A pointer to which node in the circ this conn exits at. Set for AP connections and for hidden service exit connections.

Definition at line 35 of file edge_connection_st.h.

Referenced by circuit_detach_stream(), circuit_resume_edge_reading_helper(), connection_ap_get_begincell_flags(), connection_edge_send_command(), and relay_lookup_conn().

deliver_window

int deliver_window

How many more relay cells can end at me?

Definition at line 28 of file edge_connection_st.h.

dirreq_id

uint64_t dirreq_id

Unique ID for directory requests; this used to be in connection_t, but that's going away and being used on channels instead. We still tag edge connections with dirreq_id from circuits, so it's copied here.

Definition at line 75 of file edge_connection_st.h.

edge_blocked_on_circ

unsigned int edge_blocked_on_circ

True iff we've blocked reading until the circuit has fewer queued cells.

Definition at line 70 of file edge_connection_st.h.

Referenced by set_streams_blocked_on_circ().

edge_has_sent_end

unsigned int edge_has_sent_end

For debugging; only used on edge connections. Set once we've set the stream end, and check in connection_about_to_close_connection().

Definition at line 64 of file edge_connection_st.h.

Referenced by connection_edge_about_to_close(), and connection_edge_end().

end_reason

uint16_t end_reason

The reason why this connection is closing; passed to the controller.

Definition at line 51 of file edge_connection_st.h.

is_dns_request

unsigned int is_dns_request

True iff this connection is for a DNS request only.

Definition at line 60 of file edge_connection_st.h.

is_reverse_dns_lookup

unsigned int is_reverse_dns_lookup

True iff this connection is for a PTR DNS request. (exit only)

Definition at line 62 of file edge_connection_st.h.

Referenced by set_exitconn_info_from_resolve().

n_read

uint32_t n_read

Bytes read since last call to control_event_stream_bandwidth_used()

Definition at line 54 of file edge_connection_st.h.

n_written

uint32_t n_written

Bytes written since last call to control_event_stream_bandwidth_used()

Definition at line 57 of file edge_connection_st.h.

next_stream

struct edge_connection_t* next_stream

Points to the next stream at this edge, if any

Definition at line 24 of file edge_connection_st.h.

Referenced by circuit_detach_stream(), circuit_dump_by_conn(), circuit_free_all(), circuit_get_streams_max_data_age(), circuit_resume_edge_reading_helper(), marked_circuit_streams_free_bytes(), relay_lookup_conn(), set_streams_blocked_on_circ(), and socks_mark_rend_circuit_timed_out().

on_circuit

struct circuit_t* on_circuit

The circuit (if any) that this edge connection is using.

Definition at line 30 of file edge_connection_st.h.

Referenced by circuit_detach_stream(), circuit_get_by_edge_conn(), connection_ap_get_begincell_flags(), connection_ap_handshake_send_begin(), connection_ap_handshake_send_resolve(), connection_ap_supports_optimistic_data(), connection_edge_send_command(), connection_exit_connect_dir(), and dns_resolve().

package_window

int package_window

How many more relay cells can I send into the circuit?

Definition at line 26 of file edge_connection_st.h.

Referenced by circuit_resume_edge_reading_helper().

stream_id

streamid_t stream_id

Flags sent or received in the BEGIN cell for this connection The stream ID used for this edge connection on its circuit

Definition at line 47 of file edge_connection_st.h.

Referenced by connection_exit_begin_resolve(), connection_half_edge_add(), relay_lookup_conn(), and set_streams_blocked_on_circ().

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

• core/or/edge_connection_st.h