multi.h File Reference

Header file for server-mode related structures and functions. More...

#include "init.h"
#include "forward.h"
#include "mroute.h"
#include "mbuf.h"
#include "list.h"
#include "schedule.h"
#include "pool.h"
#include "mudp.h"
#include "mtcp.h"
#include "multi_io.h"
#include "vlan.h"
#include "reflect_filter.h"

Include dependency graph for multi.h:

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Go to the source code of this file.

Data Structures
struct	multi_reap
struct	deferred_signal_schedule_entry
struct	client_connect_defer_state
	Detached client connection state. More...
struct	multi_instance
	Server-mode state structure for one single VPN tunnel. More...
struct	multi_context
	Main OpenVPN server state structure. More...
struct	multi_route

Macros
#define	MULTI_PREFIX_MAX_LENGTH   256
#define	MULTI_ROUTE_CACHE   (1 << 0)
#define	MULTI_ROUTE_AGEABLE   (1 << 1)
#define	MULTI_ROUTE_PERMANENT   (1 << 2) /* config-derived (iroute / pushed ifconfig); never stale-aged */
#define	MPP_PRE_SELECT   (1 << 0)
#define	MPP_CLOSE_ON_SIGNAL   (1 << 1)
#define	MPP_RECORD_TOUCH   (1 << 2)
#define	REAP_MAX_WAKEUP   10 /* Do reap pass at least once per n seconds */
#define	REAP_DIVISOR   256 /* How many passes to cover whole hash table */
#define	REAP_MIN   16 /* Minimum number of buckets per pass */
#define	REAP_MAX   1024 /* Maximum number of buckets per pass */
#define	MULTI_CACHE_ROUTE_TTL   60
#define	CLIENT_CONNECT_OPT_MASK
#define	MULTI_CHECK_SIG(m)

Enumerations
enum	client_connect_return { CC_RET_FAILED , CC_RET_SUCCEEDED , CC_RET_DEFERRED , CC_RET_SKIPPED }
	Return values used by the client connect call-back functions. More...

Functions
void	tunnel_server (struct context *top)
	Main event loop for OpenVPN in server mode.
const char *	multi_instance_string (const struct multi_instance *mi, bool null, struct gc_arena *gc)
struct multi_instance *	multi_create_instance (struct multi_context *m, const struct mroute_addr *real, struct link_socket *sock)
void	multi_close_instance (struct multi_context *m, struct multi_instance *mi, bool shutdown)
bool	multi_process_timeout (struct multi_context *m, const unsigned int mpp_flags)
bool	multi_process_post (struct multi_context *m, struct multi_instance *mi, const unsigned int flags)
	Perform postprocessing of a VPN tunnel instance.
void	multi_process_incoming_dco (dco_context_t *dco)
	Process an incoming DCO message (from kernel space).
bool	multi_process_incoming_link (struct multi_context *m, struct multi_instance *instance, const unsigned int mpp_flags, struct link_socket *sock)
	Demultiplex and process a packet received over the external network interface.
bool	multi_process_incoming_tun (struct multi_context *m, const unsigned int mpp_flags)
	Determine the destination VPN tunnel of a packet received over the virtual tun/tap network interface and then process it accordingly.
struct multi_instance *	multi_get_queue (struct mbuf_set *ms)
void	multi_ifconfig_pool_persist (struct multi_context *m, bool force)
bool	multi_process_signal (struct multi_context *m)
void	multi_close_instance_on_signal (struct multi_context *m, struct multi_instance *mi)
void	init_management_callback_multi (struct multi_context *m)
static bool	multi_output_queue_ready (const struct multi_context *m, const struct multi_instance *mi)
void	route_quota_exceeded (const struct multi_instance *mi)
static void	route_quota_inc (struct multi_instance *mi)
static void	route_quota_dec (struct multi_instance *mi)
static bool	route_quota_test (const struct multi_instance *mi)
static void	multi_instance_inc_refcount (struct multi_instance *mi)
static void	multi_instance_dec_refcount (struct multi_instance *mi)
static void	multi_route_del (struct multi_route *route)
static bool	multi_route_defined (const struct multi_context *m, const struct multi_route *r)
void	ungenerate_prefix (struct multi_instance *mi)
static void	set_prefix (const struct multi_instance *mi)
static void	clear_prefix (void)
void	multi_reap_process_dowork (const struct multi_context *m)
void	multi_process_per_second_timers_dowork (struct multi_context *m)
static void	multi_reap_process (const struct multi_context *m)
static void	multi_process_per_second_timers (struct multi_context *m)
static void	multi_get_timeout_instance (struct multi_context *m, struct timeval *dest)
bool	multi_check_push_ifconfig_extra_route (const struct options *o, in_addr_t dest)
	Determines if the ifconfig_push_local address falls into the range of the local IP addresses of the VPN interface (ifconfig_local with ifconfig_remote_netmask).
bool	multi_check_push_ifconfig_ipv6_extra_route (const struct options *o, const struct in6_addr *dest)
	Determines if the ifconfig_ipv6_local address falls into the range of the local IP addresses of the VPN interface (ifconfig_local with ifconfig_remote_netmask).
static void	multi_set_pending (struct multi_context *m, struct multi_instance *mi)
void	multi_assign_peer_id (struct multi_context *m, struct multi_instance *mi)
	Assigns a peer-id to a a client and adds the instance to the the instances array of the multi_context structure.
struct multi_instance *	lookup_by_cid (struct multi_context *m, const unsigned long cid)
void	update_vhash (struct multi_context *m, struct multi_instance *mi, const char *new_ip, const char *new_ipv6)
	Update the vhash with new IP/IPv6 addresses in the multi_context when a push-update message containing ifconfig/ifconfig-ipv6 options is sent from the server.
void	unlearn_ifconfig (struct multi_context *m, struct multi_instance *mi)
void	unlearn_ifconfig_ipv6 (struct multi_context *m, struct multi_instance *mi)

Detailed Description

Header file for server-mode related structures and functions.

Definition in file multi.h.

Macro Definition Documentation

CLIENT_CONNECT_OPT_MASK

#define CLIENT_CONNECT_OPT_MASK

Value:

    (OPT_P_INSTANCE | OPT_P_INHERIT | OPT_P_PUSH | OPT_P_TIMER | OPT_P_CONFIG | OPT_P_ECHO \
     | OPT_P_COMP | OPT_P_SOCKFLAGS)

Definition at line 609 of file multi.h.

Referenced by multi_client_connect_mda(), multi_client_connect_post(), and multi_client_connect_post_plugin().

MPP_CLOSE_ON_SIGNAL

#define MPP_CLOSE_ON_SIGNAL   (1 << 1)

Definition at line 287 of file multi.h.

Referenced by multi_process_io_udp(), and multi_process_post().

MPP_PRE_SELECT

#define MPP_PRE_SELECT   (1 << 0)

Definition at line 286 of file multi.h.

Referenced by multi_create_instance(), multi_io_dispatch(), multi_io_process_io(), multi_process_io_udp(), and multi_process_post().

MPP_RECORD_TOUCH

#define MPP_RECORD_TOUCH   (1 << 2)

Definition at line 288 of file multi.h.

Referenced by multi_io_dispatch(), multi_io_process_io(), and multi_process_post().

MULTI_CACHE_ROUTE_TTL

#define MULTI_CACHE_ROUTE_TTL   60

Definition at line 549 of file multi.h.

Referenced by multi_init().

MULTI_CHECK_SIG

#define MULTI_CHECK_SIG

(

m

)

Value:

EVENT_LOOP_CHECK_SIGNAL(&(m)->top, multi_process_signal, (m))

Definition at line 642 of file multi.h.

Referenced by tunnel_server_loop().

MULTI_PREFIX_MAX_LENGTH

#define MULTI_PREFIX_MAX_LENGTH   256

Definition at line 44 of file multi.h.

Referenced by multi_instance_string().

MULTI_ROUTE_AGEABLE

#define MULTI_ROUTE_AGEABLE   (1 << 1)

Definition at line 253 of file multi.h.

Referenced by multi_get_instance_by_virtual_addr(), and multi_route_defined().

MULTI_ROUTE_CACHE

#define MULTI_ROUTE_CACHE   (1 << 0)

Definition at line 252 of file multi.h.

Referenced by multi_get_instance_by_virtual_addr(), multi_learn_addr(), multi_print_status(), and multi_route_defined().

MULTI_ROUTE_PERMANENT

#define MULTI_ROUTE_PERMANENT   (1 << 2) /* config-derived (iroute / pushed ifconfig); never stale-aged */

Definition at line 254 of file multi.h.

Referenced by check_stale_routes(), multi_learn_in6_addr(), and multi_learn_in_addr_t().

REAP_DIVISOR

#define REAP_DIVISOR   256 /* How many passes to cover whole hash table */

Definition at line 541 of file multi.h.

Referenced by reap_buckets_per_pass().

REAP_MAX

#define REAP_MAX   1024 /* Maximum number of buckets per pass */

Definition at line 543 of file multi.h.

Referenced by reap_buckets_per_pass().

REAP_MAX_WAKEUP

#define REAP_MAX_WAKEUP   10 /* Do reap pass at least once per n seconds */

Definition at line 540 of file multi.h.

Referenced by multi_get_timeout_instance().

REAP_MIN

#define REAP_MIN   16 /* Minimum number of buckets per pass */

Definition at line 542 of file multi.h.

Referenced by reap_buckets_per_pass().

Enumeration Type Documentation

client_connect_return

enum client_connect_return

Return values used by the client connect call-back functions.

Enumerator
CC_RET_FAILED
CC_RET_SUCCEEDED
CC_RET_DEFERRED
CC_RET_SKIPPED

Definition at line 236 of file multi.h.

Function Documentation

clear_prefix()

void clear_prefix ( void )

inlinestatic

Definition at line 523 of file multi.h.

References msg_set_prefix().

Referenced by multi_close_instance_on_signal(), multi_get_queue(), multi_io_dispatch(), multi_io_drop_tun(), multi_io_send_link(), multi_io_write_link(), multi_io_write_tun(), multi_process_incoming_link(), multi_process_incoming_tun(), and multi_process_timeout().

init_management_callback_multi()

void init_management_callback_multi

(

struct multi_context *

m

)

Definition at line 4163 of file multi.c.

References management_callback::arg, CLEAR, management_callback::client_auth, management_callback::client_pending_auth, management_callback::delete_event, management_callback::flags, management_callback::get_peer_info, management_callback::kill_by_addr, management_callback::kill_by_cid, management_callback::kill_by_cn, management_callback_kill_by_addr(), management_callback_kill_by_cn(), management_callback_n_clients(), management_callback_send_push_update_broadcast(), management_callback_send_push_update_by_cid(), management_callback_status(), management_client_auth(), management_client_pending_auth(), management_delete_event(), management_get_peer_info(), management_kill_by_cid(), management_set_callback(), management_show_net_callback(), MCF_SERVER, management_callback::n_clients, management_callback::push_update_broadcast, management_callback::push_update_by_cid, management_callback::show_net, and management_callback::status.

Referenced by tunnel_server().

lookup_by_cid()

struct multi_instance * lookup_by_cid	(	struct multi_context *	m,
		const unsigned long	cid )

Definition at line 4032 of file multi.c.

References multi_context::cid_hash, multi_instance::halt, hash_lookup(), and multi_context::instances.

Referenced by management_client_auth(), management_client_pending_auth(), management_get_peer_info(), management_kill_by_cid(), and send_push_update().

multi_assign_peer_id()

void multi_assign_peer_id	(	struct multi_context *	m,
		struct multi_instance *	mi )

Assigns a peer-id to a a client and adds the instance to the the instances array of the multi_context structure.

Parameters

m	- The single multi_context structure.
mi	- The multi_instance of the VPN tunnel to be postprocessed.

Definition at line 4190 of file multi.c.

References ASSERT, multi_context::assigned_peer_ids, context::c2, multi_instance::context, multi_context::instances, multi_context::max_clients, MAX_PEER_ID, multi_context::max_peerid, tls_multi::rx_peer_id, and context_2::tls_multi.

Referenced by handle_connection_attempt(), and multi_create_instance_tcp().

multi_check_push_ifconfig_extra_route()

bool multi_check_push_ifconfig_extra_route	(	const struct options *	o,
		in_addr_t	dest )

Determines if the ifconfig_push_local address falls into the range of the local IP addresses of the VPN interface (ifconfig_local with ifconfig_remote_netmask).

Parameters

o	The instance wide options
dest	The destination IP address to check

Returns

Returns true if ifconfig_push is outside that range and requires an extra route to be installed.

Definition at line 4487 of file multi.c.

References options::ifconfig_local, and options::ifconfig_remote_netmask.

Referenced by multi_learn_in_addr_t().

multi_check_push_ifconfig_ipv6_extra_route()

bool multi_check_push_ifconfig_ipv6_extra_route	(	const struct options *	o,
		const struct in6_addr *	dest )

Determines if the ifconfig_ipv6_local address falls into the range of the local IP addresses of the VPN interface (ifconfig_local with ifconfig_remote_netmask).

Parameters

o	The instance wide options
dest	The destination IPv6 address to check

Returns

Returns true if ifconfig_push is outside that range and requires an extra route to be installed.

Definition at line 4507 of file multi.c.

References options::ifconfig_ipv6_local, options::ifconfig_ipv6_netbits, and ipv6_net_contains_host().

Referenced by multi_learn_in6_addr().

multi_close_instance()

void multi_close_instance	(	struct multi_context *	m,
		struct multi_instance *	mi,
		bool	shutdown )

Definition at line 565 of file multi.c.

References ASSERT, multi_context::assigned_peer_ids, context::c2, CAS_CONNECT_DONE, CC_GC_FREE, man_def_auth_context::cid, multi_context::cid_hash, close_context(), multi_instance::context, D_MULTI_DEBUG, multi_instance::did_cid_hash, multi_instance::did_real_hash, dmsg, multi_context::earliest_wakeup, multi_instance::halt, multi_context::hash, hash_remove(), multi_context::ifconfig_pool, ifconfig_pool_release(), link_socket::info, multi_context::instances, context_2::link_sockets, MAX_PEER_ID, multi_context::max_peerid, multi_context::mbuf, mbuf_dereference_instance(), context_2::mda_context, multi_client_disconnect_script(), multi_del_iroutes(), multi_hash_sid_remove(), multi_instance_dec_refcount(), multi_context::multi_io, multi_set_pending(), tls_multi::multi_state, multi_tcp_dereference_instance(), multi_tcp_instance_specific_free(), multi_context::n_clients, multi_instance::n_clients_delta, multi_context::pending, link_socket_info::proto, proto_is_dgram(), multi_instance::real, tls_multi::rx_peer_id, multi_context::schedule, schedule_remove_entry(), session_id_defined(), set_cc_config(), multi_instance::sid_hashed_value, SIGTERM, context_2::tls_multi, and ungenerate_prefix().

Referenced by multi_check_dest_addr_allowed(), multi_close_instance_on_signal(), multi_create_instance(), multi_delete_dup(), and multi_uninit().

multi_close_instance_on_signal()

void multi_close_instance_on_signal	(	struct multi_context *	m,
		struct multi_instance *	mi )

Definition at line 3285 of file multi.c.

References clear_prefix(), multi_instance::context, D_MULTI_LOW, multi_close_instance(), print_signal(), remap_signal(), set_prefix(), and context::sig.

Referenced by multi_io_action(), multi_process_post(), and multi_signal_instance().

multi_create_instance()

struct multi_instance * multi_create_instance	(	struct multi_context *	m,
		const struct mroute_addr *	real,
		struct link_socket *	sock )

Definition at line 725 of file multi.c.

References ALLOC_OBJ_CLEAR, multi_context::assigned_peer_ids, context::c2, CAS_NOT_CONNECTED, man_def_auth_context::cid, multi_context::cid_counter, multi_context::cid_hash, multi_instance::context, multi_instance::created, D_MULTI_ERRORS, D_MULTI_MEDIUM, multi_instance::did_cid_hash, multi_instance::ev_arg, EVENT_ARG_MULTI_INSTANCE, gc, multi_instance::gc, gc_free(), gc_new(), generate_prefix(), hash_add(), inherit_context_child(), IS_SIG, multi_context::max_clients, context_2::mda_context, event_arg::mi, MPP_PRE_SELECT, mroute_addr_init(), msg, multi_close_instance(), multi_instance_inc_refcount(), multi_process_post(), tls_multi::multi_state, multi_tcp_instance_specific_init(), now, context_2::push_request_received, multi_instance::real, context_2::tls_multi, multi_context::top, event_arg::type, event_arg::u, and multi_instance::vaddr_handle.

Referenced by handle_connection_attempt(), and multi_create_instance_tcp().

multi_get_queue()

struct multi_instance * multi_get_queue

(

struct mbuf_set *

ms

)

Definition at line 3717 of file multi.c.

References context_2::buf, mbuf_buffer::buf, mbuf_item::buffer, context::c2, clear_prefix(), multi_instance::context, D_MULTI_DEBUG, dmsg, encrypt_sign(), mbuf_buffer::flags, mbuf_item::instance, context_2::link_sockets, mbuf_extract_item(), mbuf_free_buf(), MF_UNICAST, PIP_MSSFIX, PIPV4_PASSTOS, PIPV6_ICMP_NOHOST_SERVER, process_ip_header(), and set_prefix().

Referenced by multi_io_write_link_pre().

multi_get_timeout_instance()

void multi_get_timeout_instance ( struct multi_context * m, struct timeval * dest )

inlinestatic

Definition at line 584 of file multi.h.

References ASSERT, CLEAR, multi_context::earliest_wakeup, openvpn_gettimeofday(), REAP_MAX_WAKEUP, multi_context::schedule, schedule_get_earliest_wakeup(), and tv_delta().

Referenced by multi_get_timeout().

multi_ifconfig_pool_persist()

void multi_ifconfig_pool_persist	(	struct multi_context *	m,
		bool	force )

Definition at line 151 of file multi.c.

References context::c1, multi_context::ifconfig_pool, context_1::ifconfig_pool_persist, ifconfig_pool_write(), ifconfig_pool_write_trigger(), and multi_context::top.

Referenced by multi_process_per_second_timers_dowork(), and tunnel_server().

multi_instance_dec_refcount()

void multi_instance_dec_refcount ( struct multi_instance * mi )

inlinestatic

Definition at line 460 of file multi.h.

References multi_instance::gc, gc_free(), and multi_instance::refcount.

Referenced by multi_close_instance(), multi_hash_sid_remove(), and multi_route_del().

multi_instance_inc_refcount()

void multi_instance_inc_refcount ( struct multi_instance * mi )

inlinestatic

Definition at line 454 of file multi.h.

References multi_instance::refcount.

Referenced by multi_create_instance(), multi_hash_sid_add(), and multi_learn_addr().

multi_instance_string()

const char * multi_instance_string	(	const struct multi_instance *	mi,
		bool	null,
		struct gc_arena *	gc )

Definition at line 425 of file multi.c.

References alloc_buf_gc(), BSTR, buf_printf(), context::c2, check_debug_level(), multi_instance::context, D_DCO_DEBUG, D_MULTI_DEBUG, dco_enabled(), gc, mroute_addr_print(), MULTI_PREFIX_MAX_LENGTH, context::options, multi_instance::real, tls_multi::rx_peer_id, tls_common_name(), and context_2::tls_multi.

Referenced by generate_prefix(), multi_add_iroutes(), multi_check_dest_addr_allowed(), multi_client_connect_late_setup(), multi_client_setup_dco_initial(), multi_get_instance_by_virtual_addr(), multi_io_post(), multi_learn_addr(), multi_select_virtual_addr(), multi_unlearn_addr(), and route_quota_exceeded().

multi_output_queue_ready()

bool multi_output_queue_ready ( const struct multi_context * m, const struct multi_instance * mi )

inlinestatic

Definition at line 400 of file multi.h.

References mbuf_len(), multi_instance::tcp_link_out_deferred, and multi_context::tcp_queue_limit.

Referenced by multi_add_mbuf(), and multi_process_incoming_tun().

multi_process_incoming_dco()

void multi_process_incoming_dco

(

dco_context_t *

dco

)

Process an incoming DCO message (from kernel space).

Parameters

dco	- Pointer to the structure representing the DCO context.

Referenced by dco_read_and_process().

multi_process_per_second_timers()

void multi_process_per_second_timers ( struct multi_context * m )

inlinestatic

Definition at line 565 of file multi.h.

References multi_process_per_second_timers_dowork(), now, and multi_context::per_second_trigger.

Referenced by tunnel_server_loop().

multi_process_per_second_timers_dowork()

void multi_process_per_second_timers_dowork

(

struct multi_context *

m

)

Definition at line 3843 of file multi.c.

References context::c1, check_stale_routes(), multi_ifconfig_pool_persist(), multi_print_status(), multi_reap_process(), context::options, stale_route_check_trigger(), options::stale_routes_check_interval, multi_context::status_file_version, context_1::status_output, status_trigger(), and multi_context::top.

Referenced by multi_process_per_second_timers().

multi_process_post()

bool multi_process_post	(	struct multi_context *	m,
		struct multi_instance *	mi,
		const unsigned int	flags )

Perform postprocessing of a VPN tunnel instance.

After some VPN tunnel activity has taken place, the VPN tunnel's state may need updating and some follow-up action may be required. This function controls the necessary postprocessing. It is called by many other functions that handle VPN tunnel related activity, such as multi_process_incoming_link(), multi_io_write_link(), multi_process_incoming_tun(), multi_io_write_tun(), and multi_process_timeout(), among others.

Parameters

m	- The single multi_context structure.
mi	- The multi_instance of the VPN tunnel to be postprocessed.
flags	- Fast I/O optimization flags.

Returns

• True, if the VPN tunnel instance mi was not closed due to a signal during processing.
• False, if the VPN tunnel instance mi was closed.

Definition at line 3044 of file multi.c.

References ANY_OUT, auth_deferred_status::auth_control_file, key_state::authenticated, context::c2, multi_instance::client_connect_defer_state, multi_instance::context, client_connect_defer_state::deferred_ret_file, context_2::fragment, is_cas_pending(), IS_SIG, tls_session::key, KS_AUTH_DEFERRED, KS_AUTH_FALSE, KS_PRIMARY, buffer::len, MPP_CLOSE_ON_SIGNAL, MPP_PRE_SELECT, MPP_RECORD_TOUCH, multi_context::mpp_touched, multi_close_instance_on_signal(), multi_connection_established(), multi_schedule_context_wakeup(), multi_set_pending(), tls_multi::multi_state, fragment_master::outgoing, multi_context::pending, key_state::plugin_auth, pre_select(), key_state::script_auth, tls_multi::session, context_2::timeval, context_2::tls_multi, TM_ACTIVE, context_2::to_link, context_2::to_tun, and multi_context::top.

Referenced by multi_create_instance(), multi_io_dispatch(), multi_io_drop_tun(), multi_io_send_link(), multi_io_write_link(), multi_io_write_tun(), multi_process_incoming_link(), multi_process_incoming_tun(), and multi_process_timeout().

multi_process_signal()

bool multi_process_signal

(

struct multi_context *

m

)

Definition at line 3925 of file multi.c.

References options::ce, multi_context::deferred_shutdown_signal, connection_entry::explicit_exit_notification, has_udp_in_local_list(), is_exit_restart(), M_INFO, multi_print_status(), multi_push_restart_schedule_exit(), context::options, context::sig, deferred_signal_schedule_entry::signal_received, signal_info::signal_received, signal_reset(), SIGUSR2, status_close(), multi_context::status_file_version, status_open(), and multi_context::top.

multi_process_timeout()

bool multi_process_timeout	(	struct multi_context *	m,
		const unsigned int	mpp_flags )

Definition at line 3753 of file multi.c.

References clear_prefix(), multi_context::deferred_shutdown_signal, multi_context::earliest_wakeup, multi_process_post(), multi_context::schedule, schedule_remove_entry(), set_prefix(), deferred_signal_schedule_entry::signal_received, and throw_signal().

Referenced by multi_io_dispatch().

multi_reap_process()

void multi_reap_process ( const struct multi_context * m )

inlinestatic

Definition at line 556 of file multi.h.

References multi_reap::last_call, multi_reap_process_dowork(), now, and multi_context::reaper.

Referenced by multi_process_per_second_timers_dowork().

multi_reap_process_dowork()

void multi_reap_process_dowork

(

const struct multi_context *

m

)

Definition at line 203 of file multi.c.

References multi_reap::bucket_base, multi_reap::buckets_per_pass, hash_n_buckets(), multi_reap::last_call, multi_reap_range(), now, multi_context::reaper, and multi_context::vhash.

Referenced by multi_reap_process().

multi_route_defined()

bool multi_route_defined ( const struct multi_context * m, const struct multi_route * r )

inlinestatic

Definition at line 479 of file multi.h.

References mroute_helper::ageable_ttl_secs, mroute_helper::cache_generation, multi_route::cache_generation, multi_route::flags, multi_instance::halt, multi_route::instance, multi_route::last_reference, MULTI_ROUTE_AGEABLE, MULTI_ROUTE_CACHE, now, and multi_context::route_helper.

Referenced by check_stale_routes(), multi_get_instance_by_virtual_addr(), multi_learn_addr(), multi_print_status(), and multi_reap_range().

multi_route_del()

void multi_route_del ( struct multi_route * route )

inlinestatic

Definition at line 470 of file multi.h.

References multi_instance_dec_refcount(), route, and route_quota_dec().

Referenced by check_stale_routes(), multi_learn_addr(), multi_reap_range(), and multi_unlearn_addr().

multi_set_pending()

void multi_set_pending ( struct multi_context * m, struct multi_instance * mi )

inlinestatic

Definition at line 645 of file multi.h.

References multi_context::pending.

Referenced by multi_close_instance(), multi_process_incoming_link(), multi_process_incoming_tun(), and multi_process_post().

route_quota_dec()

void route_quota_dec ( struct multi_instance * mi )

inlinestatic

Definition at line 429 of file multi.h.

References multi_instance::route_count.

Referenced by multi_route_del().

route_quota_exceeded()

void route_quota_exceeded

(

const struct multi_instance *

mi

)

Definition at line 3786 of file multi.c.

References multi_instance::context, D_ROUTE_QUOTA, gc, gc_free(), gc_new(), options::max_routes_per_client, msg, multi_instance_string(), and context::options.

Referenced by route_quota_test().

route_quota_inc()

void route_quota_inc ( struct multi_instance * mi )

inlinestatic

Definition at line 423 of file multi.h.

References multi_instance::route_count.

Referenced by multi_learn_addr().

route_quota_test()

bool route_quota_test ( const struct multi_instance * mi )

inlinestatic

Definition at line 436 of file multi.h.

References multi_instance::context, options::max_routes_per_client, context::options, multi_instance::route_count, and route_quota_exceeded().

Referenced by multi_learn_addr().

set_prefix()

void set_prefix ( const struct multi_instance * mi )

inlinestatic

Definition at line 511 of file multi.h.

References multi_instance::msg_prefix, and msg_set_prefix().

Referenced by generate_prefix(), multi_close_instance_on_signal(), multi_get_queue(), multi_io_dispatch(), multi_io_drop_tun(), multi_io_send_link(), multi_io_write_link(), multi_io_write_tun(), multi_process_incoming_link(), multi_process_incoming_tun(), multi_process_timeout(), and ungenerate_prefix().

ungenerate_prefix()

void ungenerate_prefix

(

struct multi_instance *

mi

)

Definition at line 475 of file multi.c.

References multi_instance::msg_prefix, and set_prefix().

Referenced by multi_close_instance(), and multi_get_instance_udp_data().

unlearn_ifconfig()

void unlearn_ifconfig	(	struct multi_context *	m,
		struct multi_instance *	mi )

Definition at line 4407 of file multi.c.

References context::c2, multi_instance::context, multi_unlearn_in_addr_t(), context_2::push_ifconfig_defined, context_2::push_ifconfig_local, and multi_instance::reporting_addr.

Referenced by send_single_push_update(), and update_vhash().

unlearn_ifconfig_ipv6()

void unlearn_ifconfig_ipv6	(	struct multi_context *	m,
		struct multi_instance *	mi )

Definition at line 4419 of file multi.c.

References context::c2, CLEAR, multi_instance::context, multi_unlearn_in6_addr(), context_2::push_ifconfig_ipv6_defined, context_2::push_ifconfig_ipv6_local, and multi_instance::reporting_addr_ipv6.

Referenced by send_single_push_update(), and update_vhash().

update_vhash()

void update_vhash	(	struct multi_context *	m,
		struct multi_instance *	mi,
		const char *	new_ip,
		const char *	new_ipv6 )

Update the vhash with new IP/IPv6 addresses in the multi_context when a push-update message containing ifconfig/ifconfig-ipv6 options is sent from the server.

Parameters

m	The multi_context
mi	The multi_instance of the client we are updating
new_ip	The new IPv4 address or NULL if no change
new_ipv6	The new IPv6 address or NULL if no change

Definition at line 4441 of file multi.c.

References context::c2, CLEAR, multi_instance::context, multi_learn_in6_addr(), multi_learn_in_addr_t(), context_2::push_ifconfig_defined, context_2::push_ifconfig_ipv6_defined, context_2::push_ifconfig_ipv6_local, context_2::push_ifconfig_local, multi_instance::reporting_addr, multi_instance::reporting_addr_ipv6, unlearn_ifconfig(), and unlearn_ifconfig_ipv6().

Referenced by send_single_push_update().