#include "syshead.h"
#include "forward.h"
#include "multi.h"
#include "push.h"
#include "run_command.h"
#include "otime.h"
#include "pf.h"
#include "gremlin.h"
#include "mstats.h"
#include "ssl_verify.h"
#include "vlan.h"
#include <inttypes.h>
#include "memdbg.h"
#include "crypto_backend.h"

Include dependency graph for multi.c:

Functions
static void	update_mstat_n_clients (const int n_clients)

static bool	learn_address_script (const struct multi_context m, const struct multi_instance mi, const char op, const struct mroute_addr addr)

void	multi_ifconfig_pool_persist (struct multi_context *m, bool force)

static void	multi_reap_range (const struct multi_context *m, int start_bucket, int end_bucket)

static void	multi_reap_all (const struct multi_context *m)

static struct multi_reap *	multi_reap_new (int buckets_per_pass)

void	multi_reap_process_dowork (const struct multi_context *m)

static void	multi_reap_free (struct multi_reap *mr)

static int	reap_buckets_per_pass (int n_buckets)

void	multi_init (struct multi_context m, struct context t, bool tcp_mode, int thread_mode)

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

static void	generate_prefix (struct multi_instance *mi)

void	ungenerate_prefix (struct multi_instance *mi)

static const char *	mi_prefix (const struct multi_instance *mi)

static void	multi_del_iroutes (struct multi_context m, struct multi_instance mi)

static void	setenv_stats (struct context *c)

static void	multi_client_disconnect_setenv (struct multi_instance *mi)

static void	multi_client_disconnect_script (struct multi_instance *mi)

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

void	multi_uninit (struct multi_context *m)

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

void	multi_print_status (struct multi_context m, struct status_output so, const int version)

static struct multi_instance *	multi_learn_addr (struct multi_context m, struct multi_instance mi, const struct mroute_addr *addr, const unsigned int flags)

static struct multi_instance *	multi_get_instance_by_virtual_addr (struct multi_context m, const struct mroute_addr addr, bool cidr_routing)

static struct multi_instance *	multi_learn_in_addr_t (struct multi_context m, struct multi_instance mi, in_addr_t a, int netbits, bool primary)

static struct multi_instance *	multi_learn_in6_addr (struct multi_context m, struct multi_instance mi, struct in6_addr a6, int netbits, bool primary)

static void	multi_add_iroutes (struct multi_context m, struct multi_instance mi)

static void	multi_delete_dup (struct multi_context m, struct multi_instance new_mi)

static void	check_stale_routes (struct multi_context *m)

static bool	ifconfig_push_constraint_satisfied (const struct context *c)

static void	multi_select_virtual_addr (struct multi_context m, struct multi_instance mi)

static void	multi_set_virtual_addr_env (struct multi_instance *mi)

static void	multi_client_connect_post (struct multi_context m, struct multi_instance mi, const char dc_file, unsigned int option_permissions_mask, unsigned int option_types_found)

static void	multi_client_connect_post_plugin (struct multi_context m, struct multi_instance mi, const struct plugin_return pr, unsigned int option_permissions_mask, unsigned int option_types_found)

static void	multi_client_connect_setenv (struct multi_context m, struct multi_instance mi)

static void	multi_connection_established (struct multi_context m, struct multi_instance mi)

void	multi_add_mbuf (struct multi_context m, struct multi_instance mi, struct mbuf_buffer *mb)

static void	multi_unicast (struct multi_context m, const struct buffer buf, struct multi_instance *mi)

static void	multi_bcast (struct multi_context m, const struct buffer buf, const struct multi_instance sender_instance, const struct mroute_addr sender_addr, uint16_t vid)

static unsigned int	compute_wakeup_sigma (const struct timeval *delta)

static void	multi_schedule_context_wakeup (struct multi_context m, struct multi_instance mi)

bool	multi_process_post (struct multi_context m, struct multi_instance mi, const unsigned int flags)
	Perform postprocessing of a VPN tunnel instance. More...

void	multi_process_float (struct multi_context m, struct multi_instance mi)
	Handles peer floating. More...

bool	multi_process_incoming_link (struct multi_context m, struct multi_instance instance, const unsigned int mpp_flags)
	Demultiplex and process a packet received over the external network interface. More...

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. More...

struct multi_instance *	multi_get_queue (struct mbuf_set *ms)

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

void	multi_process_drop_outgoing_tun (struct multi_context *m, const unsigned int mpp_flags)

void	route_quota_exceeded (const struct multi_instance *mi)

static bool	stale_route_check_trigger (struct multi_context *m)

void	multi_process_per_second_timers_dowork (struct multi_context *m)

void	multi_top_init (struct multi_context m, const struct context top)

void	multi_top_free (struct multi_context *m)

static bool	is_exit_restart (int sig)

static void	multi_push_restart_schedule_exit (struct multi_context *m, bool next_server)

bool	multi_process_signal (struct multi_context *m)

void	multi_close_instance_on_signal (struct multi_context m, struct multi_instance mi)

static void	multi_signal_instance (struct multi_context m, struct multi_instance mi, const int sig)

static void	management_callback_status (void arg, const int version, struct status_output so)

static int	management_callback_n_clients (void *arg)

static int	management_callback_kill_by_cn (void arg, const char del_cn)

static int	management_callback_kill_by_addr (void *arg, const in_addr_t addr, const int port)

static void	management_delete_event (void *arg, event_t event)

void	init_management_callback_multi (struct multi_context *m)

void	tunnel_server (struct context *top)
	Main event loop for OpenVPN in server mode. More...

Function Documentation

◆ check_stale_routes()

static void check_stale_routes ( struct multi_context * m )

static

◆ compute_wakeup_sigma()

static unsigned int compute_wakeup_sigma ( const struct timeval * delta )

inlinestatic

Definition at line 2289 of file multi.c.

Referenced by multi_push_restart_schedule_exit(), and multi_schedule_context_wakeup().

◆ generate_prefix()

static void generate_prefix ( struct multi_instance * mi )

static

Definition at line 492 of file multi.c.

References gc_free(), gc_new(), multi_instance::msg_prefix, multi_instance_string(), set_prefix(), and strncpynt().

Referenced by multi_connection_established(), multi_create_instance(), and multi_process_float().

◆ ifconfig_push_constraint_satisfied()

static bool ifconfig_push_constraint_satisfied ( const struct context * c )

static

Definition at line 1428 of file multi.c.

References context::c2, context::options, options::push_ifconfig_constraint_defined, options::push_ifconfig_constraint_netmask, options::push_ifconfig_constraint_network, context_2::push_ifconfig_defined, and context_2::push_ifconfig_local.

Referenced by multi_connection_established().

◆ init_management_callback_multi()

void init_management_callback_multi ( struct multi_context * m )

◆ is_exit_restart()

static bool is_exit_restart ( int sig )

static

Definition at line 3073 of file multi.c.

References SIGHUP, SIGINT, SIGTERM, and SIGUSR1.

Referenced by multi_process_signal().

◆ learn_address_script()

static bool learn_address_script	(	const struct multi_context *	m,
		const struct multi_instance *	mi,
		const char *	op,
		const struct mroute_addr *	addr
	)

static

Definition at line 97 of file multi.c.

References argv_new(), argv_parse_cmd(), argv_printf(), argv_printf_cat(), argv_reset(), context::c2, multi_instance::context, env_set_create(), context_2::es, gc_free(), gc_new(), options::learn_address_script, M_WARN, mroute_addr_print(), msg, OPENVPN_PLUGIN_FUNC_SUCCESS, OPENVPN_PLUGIN_LEARN_ADDRESS, openvpn_run_script(), context::options, plugin_call(), plugin_defined(), context::plugins, setenv_str(), tls_common_name(), context_2::tls_multi, and multi_context::top.

Referenced by check_stale_routes(), multi_learn_addr(), multi_reap_range(), and show_p2mp_parms().

◆ management_callback_kill_by_addr()

static int management_callback_kill_by_addr	(	void *	arg,
		const in_addr_t	addr,
		const int	port
	)

static

Definition at line 3216 of file multi.c.

References openvpn_sockaddr::addr, CLEAR, multi_instance::halt, hash_iterator_free(), hash_iterator_init(), hash_iterator_next(), openvpn_sockaddr::in4, multi_context::iter, mroute_addr_equal(), mroute_extract_openvpn_sockaddr(), multi_signal_instance(), multi_instance::real, SIGTERM, and hash_element::value.

Referenced by init_management_callback_multi().

◆ management_callback_kill_by_cn()

static int management_callback_kill_by_cn	(	void *	arg,
		const char *	del_cn
	)

static

Definition at line 3190 of file multi.c.

References context::c2, multi_instance::context, multi_instance::halt, hash_iterator_free(), hash_iterator_init(), hash_iterator_next(), multi_context::iter, multi_signal_instance(), SIGTERM, tls_common_name(), context_2::tls_multi, and hash_element::value.

Referenced by init_management_callback_multi().

◆ management_callback_n_clients()

static int management_callback_n_clients ( void * arg )

static

Definition at line 3183 of file multi.c.

References multi_context::n_clients.

Referenced by init_management_callback_multi().

◆ management_callback_status()

static void management_callback_status	(	void *	arg,
		const int	version,
		struct status_output *	so
	)

static

Definition at line 3168 of file multi.c.

References multi_print_status(), and multi_context::status_file_version.

Referenced by init_management_callback_multi().

◆ management_delete_event()

static void management_delete_event	(	void *	arg,
		event_t	event
	)

static

Definition at line 3247 of file multi.c.

References buffer_list_free(), context::c2, multi_instance::connection_established_flag, multi_instance::context, D_MULTI_LOW, multi_instance::halt, hash_lookup(), msg, multi_context::mtcp, multi_schedule_context_wakeup(), multi_tcp_delete_event(), np(), send_auth_failed(), send_restart(), and context_2::tls_multi.

Referenced by init_management_callback_multi().

◆ mi_prefix()

static const char* mi_prefix ( const struct multi_instance * mi )

static

Definition at line 516 of file multi.c.

References multi_instance::msg_prefix.

Referenced by multi_bcast(), and multi_process_incoming_link().

◆ multi_add_iroutes()

static void multi_add_iroutes	(	struct multi_context *	m,
		struct multi_instance *	mi
	)

static

◆ multi_add_mbuf()

void multi_add_mbuf	(	struct multi_context *	m,
		struct multi_instance *	mi,
		struct mbuf_buffer *	mb
	)

Definition at line 2169 of file multi.c.

References mbuf_item::buffer, D_MULTI_DROPPED, mbuf_item::instance, multi_context::mbuf, mbuf_add_item(), msg, and multi_output_queue_ready().

Referenced by multi_bcast(), and multi_unicast().

◆ multi_bcast()

static void multi_bcast	(	struct multi_context *	m,
		const struct buffer *	buf,
		const struct multi_instance *	sender_instance,
		const struct mroute_addr *	sender_addr,
		uint16_t	vid
	)

static

Definition at line 2209 of file multi.c.

References BLEN, context::c2, multi_instance::context, D_PF_DROPPED_BCAST, gc_free(), gc_new(), multi_instance::halt, hash_iterator_free(), hash_iterator_init(), hash_iterator_next(), multi_context::iter, MAPF_SHOW_ARP, mbuf_alloc_buf(), mbuf_free_buf(), mi_prefix(), mroute_addr_print_ex(), msg, multi_add_mbuf(), context::options, PERF_MULTI_BCAST, perf_pop(), perf_push(), context_2::tls_multi, hash_element::value, and options::vlan_pvid.

Referenced by multi_process_incoming_link(), multi_process_incoming_tun(), and route_quota_exceeded().

◆ multi_client_connect_post()

static void multi_client_connect_post	(	struct multi_context *	m,
		struct multi_instance *	mi,
		const char *	dc_file,
		unsigned int	option_permissions_mask,
		unsigned int *	option_types_found
	)

static

Definition at line 1637 of file multi.c.

References context::c2, multi_instance::context, D_IMPORT_ERRORS, context_2::es, M_OPTERR, multi_select_virtual_addr(), multi_set_virtual_addr_env(), context::options, options_server_import(), and platform_test_file().

Referenced by multi_connection_established().

◆ multi_client_connect_post_plugin()

static void multi_client_connect_post_plugin	(	struct multi_context *	m,
		struct multi_instance *	mi,
		const struct plugin_return *	pr,
		unsigned int	option_permissions_mask,
		unsigned int *	option_types_found
	)

static

Definition at line 1670 of file multi.c.

References BSTR, buffer_entry::buf, context::c2, multi_instance::context, D_IMPORT_ERRORS, context_2::es, buffer_list::head, plugin_return::list, M_OPTERR, multi_select_virtual_addr(), multi_set_virtual_addr_env(), plugin_return::n, buffer_entry::next, context::options, options_string_import(), plugin_return_defined(), plugin_return_get_column(), and openvpn_plugin_string_list::value.

Referenced by multi_connection_established().

◆ multi_client_connect_setenv()

static void multi_client_connect_setenv	(	struct multi_context *	m,
		struct multi_instance *	mi
	)

static

Definition at line 1751 of file multi.c.

References context::c2, multi_instance::context, multi_instance::created, context_2::es, gc_free(), gc_new(), get_link_socket_info(), multi_set_virtual_addr_env(), setenv_long_long(), setenv_str(), setenv_trusted(), time_string(), tls_common_name(), and context_2::tls_multi.

Referenced by multi_connection_established().

◆ multi_client_disconnect_script()

static void multi_client_disconnect_script ( struct multi_instance * mi )

static

◆ multi_client_disconnect_setenv()

static void multi_client_disconnect_setenv ( struct multi_instance * mi )

static

Definition at line 561 of file multi.c.

References context::c2, multi_instance::context, multi_instance::created, context_2::es, get_link_socket_info(), now, setenv_long_long(), setenv_stats(), and setenv_trusted().

Referenced by multi_client_disconnect_script().

◆ multi_close_instance()

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

Definition at line 608 of file multi.c.

References ASSERT, context::c2, CC_GC_FREE, close_context(), multi_instance::context, D_MULTI_DEBUG, multi_instance::did_iter, multi_instance::did_open_context, 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(), multi_context::instances, multi_context::iter, MAX_PEER_ID, multi_context::mbuf, mbuf_dereference_instance(), multi_context::mtcp, multi_client_disconnect_script(), multi_del_iroutes(), multi_instance_dec_refcount(), multi_set_pending(), multi_tcp_dereference_instance(), multi_tcp_instance_specific_free(), multi_context::n_clients, multi_instance::n_clients_delta, tls_multi::peer_id, multi_context::pending, PERF_MULTI_CLOSE_INSTANCE, perf_pop(), perf_push(), multi_instance::real, multi_context::schedule, schedule_remove_entry(), SIGTERM, context_2::tls_multi, ungenerate_prefix(), and update_mstat_n_clients().

Referenced by multi_close_instance_on_signal(), multi_create_instance(), multi_create_instance_tcp(), multi_delete_dup(), multi_process_float(), 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 3145 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_process_post(), multi_signal_instance(), and multi_tcp_action().

◆ multi_connection_established()

static void multi_connection_established	(	struct multi_context *	m,
		struct multi_instance *	mi
	)

static

Definition at line 1785 of file multi.c.

References argv_new(), argv_parse_cmd(), argv_printf(), argv_printf_cat(), argv_reset(), ASSERT, context::c1, context::c2, CAS_FAILED, CAS_PARTIAL, CAS_SUCCEEDED, CCD_DEFAULT, options::client_config_dir, options::client_connect_script, multi_instance::connection_established_flag, multi_instance::context, context_2::context_auth, D_IMPORT_ERRORS, D_MULTI_DEBUG, D_MULTI_ERRORS, D_MULTI_LOW, DEV_TYPE_TUN, options::disable, do_deferred_options(), options::duplicate_cn, context_2::es, gc_free(), gc_new(), generate_prefix(), hash_lookup(), hash_remove(), ifconfig_push_constraint_satisfied(), options::iroutes, M_OPTERR, M_WARN, msg, multi_add_iroutes(), multi_client_connect_post(), multi_client_connect_post_plugin(), multi_client_connect_setenv(), multi_delete_dup(), multi_instance_string(), multi_learn_in6_addr(), multi_learn_in_addr_t(), multi_process_post(), multi_select_virtual_addr(), multi_context::n_clients, multi_instance::n_clients_delta, OPENVPN_PLUGIN_CLIENT_CONNECT, OPENVPN_PLUGIN_CLIENT_CONNECT_V2, OPENVPN_PLUGIN_FUNC_SUCCESS, openvpn_run_script(), OPT_P_COMP, OPT_P_CONFIG, OPT_P_ECHO, OPT_P_INHERIT, OPT_P_INSTANCE, OPT_P_PUSH, OPT_P_SOCKFLAGS, OPT_P_TIMER, context::options, options_server_import(), platform_create_temp_file(), platform_gen_path(), platform_test_file(), platform_unlink(), plugin_call(), plugin_defined(), plugin_return_free(), plugin_return_init(), context::plugins, print_in6_addr(), print_in_addr_t(), process_incoming_push_request(), options::push_ifconfig_constraint_netmask, options::push_ifconfig_constraint_network, context_2::push_ifconfig_defined, context_2::push_ifconfig_ipv6_defined, context_2::push_ifconfig_ipv6_local, context_2::push_ifconfig_local, context_2::push_reply_deferred, read, remove_iroutes_from_push_route_list(), multi_instance::reporting_addr, multi_instance::reporting_addr_ipv6, setenv_str(), tls_authentication_status(), TLS_AUTHENTICATION_SUCCEEDED, tls_common_name(), tls_lock_cert_hash_set(), tls_lock_common_name(), context_2::tls_multi, options::tmp_dir, multi_context::top, TUNNEL_TYPE, context_1::tuntap, update_mstat_n_clients(), and multi_instance::vaddr_handle.

Referenced by multi_process_post().

◆ multi_create_instance()

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

Definition at line 767 of file multi.c.

References ALLOC_OBJ_CLEAR, context::c2, CAS_PENDING, multi_instance::context, context_2::context_auth, multi_instance::created, D_MULTI_ERRORS, D_MULTI_LOW, D_MULTI_MEDIUM, multi_instance::did_iter, multi_instance::did_open_context, multi_instance::gc, gc_free(), gc_new(), generate_prefix(), multi_context::hash, hash_add(), hash_n_elements(), inherit_context_child(), IS_SIG, multi_context::iter, multi_context::max_clients, MPP_PRE_SELECT, mroute_addr_init(), mroute_addr_print(), msg, multi_close_instance(), multi_instance_inc_refcount(), multi_process_post(), multi_tcp_instance_specific_init(), now, PERF_MULTI_CREATE_INSTANCE, perf_pop(), perf_push(), context_2::push_reply_deferred, multi_instance::real, multi_context::top, and multi_instance::vaddr_handle.

Referenced by multi_create_instance_tcp(), and multi_get_create_instance_udp().

◆ multi_del_iroutes()

static void multi_del_iroutes	(	struct multi_context *	m,
		struct multi_instance *	mi
	)

static

Definition at line 534 of file multi.c.

References context::c1, multi_instance::context, DEV_TYPE_TUN, options::iroutes, options::iroutes_ipv6, mroute_helper_del_iroute46(), iroute::netbits, iroute_ipv6::netbits, iroute::next, iroute_ipv6::next, context::options, multi_context::route_helper, TUNNEL_TYPE, and context_1::tuntap.

Referenced by multi_close_instance().

◆ multi_delete_dup()

static void multi_delete_dup	(	struct multi_context *	m,
		struct multi_instance *	new_mi
	)

static

Definition at line 1360 of file multi.c.

References context::c2, multi_instance::context, D_MULTI_LOW, multi_instance::did_iter, multi_instance::halt, hash_iterator_delete_element(), hash_iterator_free(), hash_iterator_init(), hash_iterator_next(), multi_context::iter, msg, multi_close_instance(), tls_common_name(), context_2::tls_multi, and hash_element::value.

Referenced by multi_connection_established().

◆ multi_get_instance_by_virtual_addr()

static struct multi_instance* multi_get_instance_by_virtual_addr	(	struct multi_context *	m,
		const struct mroute_addr *	addr,
		bool	cidr_routing
	)

static

◆ multi_get_queue()

struct multi_instance* multi_get_queue ( struct mbuf_set * ms )

Definition at line 2885 of file multi.c.

References mbuf_buffer::buf, context_2::buf, mbuf_item::buffer, context::c2, clear_prefix(), multi_instance::context, D_MULTI_DEBUG, dmsg, encrypt_sign(), mbuf_buffer::flags, mbuf_item::instance, mbuf_extract_item(), mbuf_free_buf(), MF_UNICAST, PIP_MSSFIX, PIPV4_PASSTOS, PIPV6_IMCP_NOHOST_SERVER, process_ip_header(), and set_prefix().

Referenced by multi_process_outgoing_link_pre().

◆ multi_ifconfig_pool_persist()

void multi_ifconfig_pool_persist	(	struct multi_context *	m,
		bool	force
	)

Definition at line 167 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(), tunnel_server_tcp(), and tunnel_server_udp_single_threaded().

◆ multi_init()

void multi_init	(	struct multi_context *	m,
		struct context *	t,
		bool	tcp_mode,
		int	thread_mode
	)

Definition at line 296 of file multi.c.

References ASSERT, context::c1, options::cf_max, options::cf_per, CLEAR, D_MULTI_LOW, multi_context::deferred_shutdown_signal, options::dev, options::dev_type, dev_type_enum(), DEV_TYPE_TUN, DEV_TYPE_UNDEF, options::duplicate_cn, multi_context::enable_c2c, options::enable_c2c, event_timeout_init(), frequency_limit_init(), get_random(), multi_context::hash, hash_init(), options::ifconfig_ipv6_pool_base, options::ifconfig_ipv6_pool_defined, options::ifconfig_ipv6_pool_netbits, multi_context::ifconfig_pool, IFCONFIG_POOL_30NET, options::ifconfig_pool_defined, options::ifconfig_pool_end, IFCONFIG_POOL_INDIV, ifconfig_pool_init(), context_1::ifconfig_pool_persist, ifconfig_pool_read(), options::ifconfig_pool_start, multi_context::instances, multi_context::iter, tuntap::local, multi_context::local, M_INFO, multi_context::max_clients, options::max_clients, multi_context::mbuf, mbuf_init(), mroute_addr_compare_function(), mroute_addr_hash_function(), mroute_extract_in_addr_t(), mroute_helper_init(), msg, multi_context::mtcp, MULTI_CACHE_ROUTE_TTL, multi_reap_new(), multi_tcp_init(), options::n_bcast_buf, multi_context::new_connection_limiter, context::options, options::real_hash_size, reap_buckets_per_pass(), multi_context::reaper, multi_context::route_helper, multi_context::schedule, schedule_init(), deferred_signal_schedule_entry::signal_received, options::stale_routes_ageing_time, multi_context::stale_routes_check_et, options::stale_routes_check_interval, multi_context::status_file_version, options::status_file_version, multi_context::tcp_queue_limit, options::tcp_queue_limit, multi_context::thread_mode, TOP_NET30, options::topology, context_1::tuntap, multi_context::vhash, and options::virtual_hash_size.

Referenced by tunnel_server_tcp(), and tunnel_server_udp_single_threaded().

◆ multi_instance_string()

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

Definition at line 467 of file multi.c.

References alloc_buf_gc(), BSTR, buf_printf(), context::c2, multi_instance::context, mroute_addr_print(), MULTI_PREFIX_MAX_LENGTH, multi_instance::real, tls_common_name(), and context_2::tls_multi.

Referenced by generate_prefix(), multi_add_iroutes(), multi_connection_established(), multi_get_instance_by_virtual_addr(), multi_learn_addr(), multi_process_float(), multi_select_virtual_addr(), multi_tcp_post(), and route_quota_exceeded().

◆ multi_learn_addr()

static struct multi_instance* multi_learn_addr	(	struct multi_context *	m,
		struct multi_instance *	mi,
		const struct mroute_addr *	addr,
		const unsigned int	flags
	)

static

Definition at line 1069 of file multi.c.

References multi_route::addr, ALLOC_OBJ, mroute_helper::cache_generation, multi_route::cache_generation, D_MULTI_LOW, flags, multi_route::flags, free, gc_free(), gc_new(), hash_add_fast(), hash_bucket(), hash_lookup_fast(), hash_value(), multi_route::instance, hash_element::key, multi_route::last_reference, learn_address_script(), multi_context::local, mroute_addr_equal(), mroute_addr_print(), mroute_learnable_address(), msg, multi_instance_inc_refcount(), multi_instance_string(), MULTI_ROUTE_CACHE, multi_route_defined(), multi_route_del(), now, multi_context::route_helper, route_quota_inc(), route_quota_test(), hash_element::value, and multi_context::vhash.

Referenced by multi_get_instance_by_virtual_addr(), multi_learn_in6_addr(), multi_learn_in_addr_t(), and multi_process_incoming_link().

◆ multi_learn_in6_addr()

static struct multi_instance* multi_learn_in6_addr	(	struct multi_context *	m,
		struct multi_instance *	mi,
		struct in6_addr	a6,
		int	netbits,
		bool	primary
	)

static

Definition at line 1274 of file multi.c.

References context::c2, multi_instance::context, mroute_addr::len, MR_ADDR_IPV6, MR_WITH_NETBITS, mroute_addr_mask_host_bits(), multi_learn_addr(), mroute_addr::netbits, mroute_addr::type, and mroute_addr::v6.

Referenced by multi_add_iroutes(), and multi_connection_established().

◆ multi_learn_in_addr_t()

static struct multi_instance* multi_learn_in_addr_t	(	struct multi_context *	m,
		struct multi_instance *	mi,
		in_addr_t	a,
		int	netbits,
		bool	primary
	)

static

Definition at line 1241 of file multi.c.

References openvpn_sockaddr::addr, ASSERT, context::c2, CLEAR, multi_instance::context, openvpn_sockaddr::in4, MR_WITH_NETBITS, mroute_extract_openvpn_sockaddr(), multi_learn_addr(), mroute_addr::netbits, and mroute_addr::type.

Referenced by multi_add_iroutes(), and multi_connection_established().

◆ multi_print_status()

void multi_print_status	(	struct multi_context *	m,
		struct status_output *	so,
		const int	version
	)

Definition at line 860 of file multi.c.

References multi_route::addr, context::c2, options::ciphername, multi_instance::context, counter_format, multi_instance::created, D_MULTI_DEBUG, flags, multi_route::flags, gc_free(), gc_new(), multi_instance::halt, multi_context::hash, hash_iterator_free(), hash_iterator_init(), hash_iterator_next(), hash_n_elements(), IA_EMPTY_IF_UNDEF, multi_route::instance, multi_route::last_reference, context_2::link_read_bytes, context_2::link_write_bytes, multi_context::mbuf, mbuf_maximum_queued(), mroute_addr_print(), msg, MULTI_ROUTE_CACHE, multi_route_defined(), now, context::options, tls_multi::peer_id, print_in6_addr(), print_in_addr_t(), multi_instance::real, multi_instance::reporting_addr, multi_instance::reporting_addr_ipv6, route, status_flush(), status_printf(), status_reset(), time_string(), title_string, tls_common_name(), context_2::tls_multi, tls_username(), multi_context::top, translate_cipher_name_to_openvpn(), hash_element::value, and multi_context::vhash.

Referenced by management_callback_status(), multi_process_per_second_timers_dowork(), and multi_process_signal().

◆ multi_process_drop_outgoing_tun()

void multi_process_drop_outgoing_tun	(	struct multi_context *	m,
		const unsigned int	mpp_flags
	)

Definition at line 2950 of file multi.c.

References ASSERT, buf_reset(), context::c2, clear_prefix(), multi_instance::context, D_MULTI_ERRORS, buffer::len, msg, multi_process_post(), multi_context::pending, set_prefix(), and context_2::to_tun.

Referenced by multi_tcp_dispatch().

◆ multi_process_float()

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

Handles peer floating.

If peer is floated to a taken address, either drops packet (if peer that owns address has different CN) or disconnects existing peer. Updates multi_instance with new address, updates hashtables in multi_context.

Definition at line 2421 of file multi.c.

References link_socket_addr::actual, ASSERT, context_2::buf, context::c2, cert_hash_compare(), multi_instance::context, D_MULTI_LOW, D_MULTI_MEDIUM, link_socket_actual::dest, context_2::from, gc_free(), gc_new(), generate_prefix(), multi_context::hash, hash_add(), hash_bucket(), hash_lookup_fast(), hash_remove(), hash_value(), multi_context::iter, buffer::len, context_2::link_socket, context_2::link_socket_info, link_socket_info::lsa, mroute_addr_print(), mroute_extract_openvpn_sockaddr(), msg, multi_close_instance(), multi_instance_string(), tls_multi::peer_id, print_link_socket_actual(), multi_instance::real, tls_common_name(), context_2::tls_multi, tls_update_remote_addr(), context_2::to_link_addr, multi_context::top, and hash_element::value.

Referenced by multi_process_incoming_link().

◆ multi_process_per_second_timers_dowork()

void multi_process_per_second_timers_dowork ( struct multi_context * m )

Definition at line 3030 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_process_outgoing_link(), multi_process_incoming_tun(), multi_process_outgoing_tun(), and multi_process_timeout(), among others.

Parameters