tor  0.4.2.0-alpha-dev
Typedefs | Functions
bridges.h File Reference

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Typedefs

typedef struct bridge_info_t bridge_info_t
 

Functions

void mark_bridge_list (void)
 
void sweep_bridge_list (void)
 
const smartlist_tbridge_list_get (void)
 
const uint8_t * bridge_get_rsa_id_digest (const bridge_info_t *bridge)
 
const tor_addr_port_tbridge_get_addr_port (const bridge_info_t *bridge)
 
bridge_info_tget_configured_bridge_by_addr_port_digest (const tor_addr_t *addr, uint16_t port, const char *digest)
 
bridge_info_tget_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)
 
const smartlist_tget_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)
 
 MOCK_DECL (int, transport_is_needed,(const char *transport_name))
 
int validate_pluggable_transports_config (void)
 
 MOCK_DECL (smartlist_t *, list_bridge_identities,(void))
 
 MOCK_DECL (download_status_t *, get_bridge_dl_status_by_id,(const char *digest))
 
void bridges_free_all (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 251 of file bridges.c.

References get_configured_bridge_by_addr_port_digest(), and tor_assert().

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 521 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 161 of file bridges.c.

References bridge_info_t::addrport_configured, and tor_assert().

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 147 of file bridges.c.

References bridge_info_t::identity, tor_assert(), and tor_digest_is_zero().

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

◆ 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.

References bridge_list.

Referenced by get_eligible_guards().

◆ bridges_free_all()

void bridges_free_all ( void  )

Release all storage held in bridges.c

Definition at line 1025 of file bridges.c.

References clear_bridge_list().

◆ 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.

Definition at line 264 of file bridges.c.

References extend_info_t::addr, addr_is_a_configured_bridge(), extend_info_t::identity_digest, extend_info_t::onion_key, and extend_info_t::port.

◆ 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 722 of file bridges.c.

References BRIDGE_DIRINFO, bridge_list, download_status_is_ready(), download_status_mark_impossible(), or_options_t::ExcludeNodes, get_n_authorities(), pt_proxies_configuration_pending(), routerset_contains_bridge(), and SMARTLIST_FOREACH_BEGIN.

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 591 of file bridges.c.

References bridge_list, SMARTLIST_FOREACH_BEGIN, and tor_addr_eq.

Referenced by learned_router_identity().

◆ 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 200 of file bridges.c.

References bridge_list, SMARTLIST_FOREACH_BEGIN, tor_addr_compare(), and tor_digest_is_zero().

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 226 of file bridges.c.

References bridge_list, SMARTLIST_FOREACH_BEGIN, and tor_addr_compare().

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 644 of file bridges.c.

References get_configured_bridge_by_addr_port_digest(), and bridge_info_t::socks_args.

Referenced by pt_get_socks_args_for_proxy_addrport().

◆ learned_bridge_descriptor()

void learned_bridge_descriptor ( routerinfo_t ri,
int  from_cache 
)

◆ 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.

References bridge_list, bridge_info_t::marked_for_removal, and SMARTLIST_FOREACH.

◆ 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 348 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 709 of file bridges.c.

References find_bridge_by_digest(), and launch_direct_bridge_descriptor_fetch().

◆ 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 286 of file bridges.c.

References get_configured_bridge_by_routerinfo().

◆ 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.

References bridge_list, SMARTLIST_DEL_CURRENT, and SMARTLIST_FOREACH_BEGIN.