Header file for circuitbuild.c. More...

Functions
void	mark_bridge_list (void)

void	sweep_bridge_list (void)

const smartlist_t *	bridge_list_get (void)

const uint8_t *	bridge_get_rsa_id_digest (const bridge_info_t *bridge)

const tor_addr_port_t *	bridge_get_addr_port (const bridge_info_t *bridge)

const char *	bridget_get_transport_name (const bridge_info_t *bridge)

bool	bridge_has_invalid_transport (const bridge_info_t *bridge)

bridge_info_t *	get_configured_bridge_by_addr_port_digest (const tor_addr_t addr, uint16_t port, const char digest)

bridge_info_t *	get_configured_bridge_by_exact_addr_port_digest (const tor_addr_t addr, uint16_t port, const char digest)

int	addr_is_a_configured_bridge (const tor_addr_t addr, uint16_t port, const char digest)

int	extend_info_is_a_configured_bridge (const extend_info_t *ei)

int	routerinfo_is_a_configured_bridge (const routerinfo_t *ri)

int	node_is_a_configured_bridge (const node_t *node)

void	learned_router_identity (const tor_addr_t addr, uint16_t port, const char digest, const struct ed25519_public_key_t *ed_id)

void	bridge_add_from_config (struct bridge_line_t *bridge_line)

void	retry_bridge_descriptor_fetch_directly (const char *digest)

void	fetch_bridge_descriptors (const or_options_t *options, time_t now)

void	learned_bridge_descriptor (routerinfo_t *ri, int from_cache, int desc_is_new)

const smartlist_t *	get_socks_args_by_bridge_addrport (const tor_addr_t *addr, uint16_t port)

int	any_bridges_dont_support_microdescriptors (void)

const char *	find_transport_name_by_bridge_addrport (const tor_addr_t *addr, uint16_t port)

int	get_transport_by_bridge_addrport (const tor_addr_t addr, uint16_t port, const struct transport_t *transport)

int	transport_is_needed (const char *transport_name)

int	validate_pluggable_transports_config (void)

smartlist_t *	list_bridge_identities (void)

download_status_t *	get_bridge_dl_status_by_id (const char *digest)

void	bridges_free_all (void)

bool	conflux_can_exclude_used_bridges (void)

Detailed Description

Header file for circuitbuild.c.

Definition in file bridges.h.

Function Documentation

◆ addr_is_a_configured_bridge()

int addr_is_a_configured_bridge	(	const tor_addr_t *	addr,
		uint16_t	port,
		const char *	digest
	)

If we have a bridge configured whose digest matches digest, or a bridge with no known digest whose address matches addr:port, return 1. Else return 0. If digest is NULL, check for address/port matches only.

Definition at line 308 of file bridges.c.

Referenced by extend_info_is_a_configured_bridge().

◆ bridge_add_from_config()

void bridge_add_from_config ( bridge_line_t * bridge_line )

Register the bridge information in bridge_line to the bridge subsystem. Steals reference of bridge_line.

Definition at line 562 of file bridges.c.

◆ bridge_get_addr_port()

const tor_addr_port_t * bridge_get_addr_port ( const bridge_info_t * bridge )

Given a bridge, return a pointer to its configured addr:port combination.

Definition at line 196 of file bridges.c.

Referenced by bridge_passes_guard_filter(), entry_guard_add_bridge_to_sample(), get_sampled_guard_for_bridge(), and routerset_contains_bridge().

◆ bridge_get_rsa_id_digest()

const uint8_t * bridge_get_rsa_id_digest ( const bridge_info_t * bridge )

Given a bridge, return a pointer to its RSA identity digest, or NULL if we don't know one for it.

Definition at line 182 of file bridges.c.

Referenced by entry_guard_add_bridge_to_sample(), get_sampled_guard_for_bridge(), and routerset_contains_bridge().

◆ bridge_has_invalid_transport()

bool bridge_has_invalid_transport ( const bridge_info_t * bridge )

Return true if bridge has a transport name for which we don't actually know a transport.

Definition at line 218 of file bridges.c.

Referenced by launch_direct_bridge_descriptor_fetch().

◆ bridge_list_get()

const smartlist_t * bridge_list_get ( void )

Return a list of all the configured bridges, as bridge_info_t pointers.

Definition at line 135 of file bridges.c.

Referenced by get_eligible_guards().

◆ bridges_free_all()

void bridges_free_all ( void )

Release all storage held in bridges.c

Definition at line 1083 of file bridges.c.

◆ bridget_get_transport_name()

const char * bridget_get_transport_name ( const bridge_info_t * bridge )

Given a bridge, return the transport name. If none were configured, NULL is returned.

Definition at line 207 of file bridges.c.

Referenced by bridge_has_invalid_transport().

◆ conflux_can_exclude_used_bridges()

bool conflux_can_exclude_used_bridges ( void )

Returns true if there are enough bridges to make a conflux set without re-using the same bridge.

Definition at line 147 of file bridges.c.

◆ extend_info_is_a_configured_bridge()

int extend_info_is_a_configured_bridge ( const extend_info_t * ei )

If we have a bridge configured whose digest matches ei->identity_digest, or a bridge with no known digest whose address matches ei->addr:ei->port, return 1. Else return 0. If ei->onion_key is NULL, check for address/port matches only.

Note that if the extend_info_t contains multiple addresses, we return true only if every address is a bridge.

Definition at line 325 of file bridges.c.

Referenced by circuit_handle_first_hop().

◆ fetch_bridge_descriptors()

void fetch_bridge_descriptors	(	const or_options_t *	options,
		time_t	now
	)

For each bridge in our list for which we don't currently have a descriptor, fetch a new copy of its descriptor – either directly from the bridge or via a bridge authority.

Definition at line 772 of file bridges.c.

Referenced by second_elapsed_callback().

◆ find_transport_name_by_bridge_addrport()

const char * find_transport_name_by_bridge_addrport	(	const tor_addr_t *	addr,
		uint16_t	port
	)

Given the addr and port of a bridge, if that bridge supports a pluggable transport, return its name. Otherwise, return NULL.

Definition at line 632 of file bridges.c.

Referenced by learned_router_identity().

◆ get_bridge_dl_status_by_id()

download_status_t * get_bridge_dl_status_by_id ( const char * digest )

Get the download status for a bridge descriptor given its identity

Definition at line 1065 of file bridges.c.

Referenced by getinfo_helper_downloads_bridge().

◆ get_configured_bridge_by_addr_port_digest()

bridge_info_t * get_configured_bridge_by_addr_port_digest	(	const tor_addr_t *	addr,
		uint16_t	port,
		const char *	digest
	)

If we have a bridge configured whose digest matches digest, or a bridge with no known digest whose address matches addr:port, return that bridge. Else return NULL. If digest is NULL, check for address/port matches only.

Definition at line 257 of file bridges.c.

Referenced by addr_is_a_configured_bridge(), and get_socks_args_by_bridge_addrport().

◆ get_configured_bridge_by_exact_addr_port_digest()

bridge_info_t * get_configured_bridge_by_exact_addr_port_digest	(	const tor_addr_t *	addr,
		uint16_t	port,
		const char *	digest
	)

As get_configured_bridge_by_addr_port, but require that the address match addr:port, and that the ID digest match digest. (The other function will ignore the address if the digest matches.)

Definition at line 283 of file bridges.c.

Referenced by learned_router_identity().

◆ get_socks_args_by_bridge_addrport()

const smartlist_t * get_socks_args_by_bridge_addrport	(	const tor_addr_t *	addr,
		uint16_t	port
	)

Return a smartlist containing all the SOCKS arguments that we should pass to the SOCKS proxy.

Definition at line 685 of file bridges.c.

Referenced by pt_get_socks_args_for_proxy_addrport().

◆ learned_bridge_descriptor()

void learned_bridge_descriptor	(	routerinfo_t *	ri,
		int	from_cache,
		int	desc_is_new
	)

We just learned a descriptor for a bridge. See if that digest is in our entry guard list, and add it if not. Schedule the next fetch for a long time from now, and initiate any follow-up activities like continuing to bootstrap.

from_cache * tells us whether we fetched it from disk (else the network)

desc_is_new tells us if we preferred it to the old version we had, if any.

Definition at line 991 of file bridges.c.

Referenced by routerlist_descriptors_added().

◆ list_bridge_identities()

smartlist_t * list_bridge_identities ( void )

Return a smartlist containing all bridge identity digests

Definition at line 1045 of file bridges.c.

Referenced by getinfo_helper_downloads_bridge().

◆ mark_bridge_list()

void mark_bridge_list ( void )

Mark every entry of the bridge list to be removed on our next call to sweep_bridge_list unless it has first been un-marked.

Definition at line 84 of file bridges.c.

◆ node_is_a_configured_bridge()

int node_is_a_configured_bridge ( const node_t * node )

Return 1 if node is one of our configured bridges, else 0. More specifically, return 1 iff: a bridge_info_t object exists in bridge_list such that: 1) It's identity is equal to node identity OR 2) It's identity digest is zero, but it matches address and port of any ORPort in the node.

Definition at line 389 of file bridges.c.

Referenced by node_has_preferred_descriptor().

◆ retry_bridge_descriptor_fetch_directly()

void retry_bridge_descriptor_fetch_directly ( const char * digest )

Fetching the bridge descriptor from the bridge authority returned a "not found". Fall back to trying a direct fetch.

Definition at line 759 of file bridges.c.

◆ routerinfo_is_a_configured_bridge()

int routerinfo_is_a_configured_bridge ( const routerinfo_t * ri )

Return 1 if ri is one of our known bridges, else 0.

Definition at line 357 of file bridges.c.

◆ sweep_bridge_list()

void sweep_bridge_list ( void )

Remove every entry of the bridge list that was marked with mark_bridge_list if it has not subsequently been un-marked.

Definition at line 95 of file bridges.c.

◆ transport_is_needed()

int transport_is_needed ( const char * transport_name )

Return True if we have a bridge that uses a transport with name transport_name.

Definition at line 545 of file bridges.c.

Functions