sig.h File Reference

#include "status.h"
#include "win32.h"

Include dependency graph for sig.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Data Structures
struct	signal_info

Macros
#define	SIG_SOURCE_SOFT   0
#define	SIG_SOURCE_HARD   1
#define	SIG_SOURCE_CONNECTION_FAILED   2
#define	IS_SIG(c)   ((c)->sig->signal_received)

Functions
int	parse_signal (const char *signame)
const char *	signal_name (const int sig, const bool upper)
const char *	signal_description (const int signum, const char *sigtext)
void	throw_signal (const int signum)
void	throw_signal_soft (const int signum, const char *signal_text)
void	pre_init_signal_catch (void)
void	post_init_signal_catch (void)
void	restore_signal_state (void)
void	print_signal (const struct signal_info *si, const char *title, int msglevel)
void	print_status (const struct context *c, struct status_output *so)
void	remap_signal (struct context *c)
void	signal_restart_status (const struct signal_info *si)
bool	process_signal (struct context *c)
void	register_signal (struct context *c, int sig, const char *text)
void	process_explicit_exit_notification_timer_wakeup (struct context *c)
static void	get_signal (volatile int *sig)
static void	halt_non_edge_triggered_signals (void)

Variables
struct signal_info	siginfo_static

Macro Definition Documentation

IS_SIG

#define IS_SIG

(

c

)

((c)->sig->signal_received)

Definition at line 50 of file sig.h.

Referenced by ce_management_query_proxy(), ce_management_query_remote(), do_init_crypto_tls(), inherit_context_child(), init_instance(), init_instance_handle_signals(), multi_create_instance(), multi_process_io_udp(), multi_process_post(), multi_tcp_action(), multi_tcp_dispatch(), multi_tcp_process_io(), next_connection_entry(), open_management(), openvpn_main(), process_io(), tunnel_point_to_point(), tunnel_server_tcp(), and tunnel_server_udp().

SIG_SOURCE_CONNECTION_FAILED

#define SIG_SOURCE_CONNECTION_FAILED   2

Definition at line 37 of file sig.h.

Referenced by print_signal(), and socket_connect().

SIG_SOURCE_HARD

#define SIG_SOURCE_HARD   1

Definition at line 33 of file sig.h.

Referenced by close_context(), do_close_link_socket(), ignore_restart_signals(), print_signal(), throw_signal(), and win32_signal_get().

SIG_SOURCE_SOFT

#define SIG_SOURCE_SOFT   0

Definition at line 32 of file sig.h.

Referenced by init_instance(), print_signal(), signal_reset(), and throw_signal_soft().

Function Documentation

get_signal()

static void get_signal ( volatile int *  sig )

inlinestatic

Definition at line 89 of file sig.h.

References win32_signal_get().

Referenced by halt_non_edge_triggered_signals(), io_wait_dowork(), man_check_for_signals(), multi_tcp_process_io(), openvpn_connect(), openvpn_getaddrinfo(), recv_line(), recv_socks_reply(), socket_connect(), socket_listen_accept(), socks_handshake(), and socks_username_password_auth().

halt_non_edge_triggered_signals()

static void halt_non_edge_triggered_signals ( void  )

inlinestatic

Definition at line 95 of file sig.h.

References get_signal(), siginfo_static, signal_info::signal_received, and win32_signal_close().

Referenced by process_explicit_exit_notification_init().

parse_signal()

int parse_signal

(

const char *

signame

)

Definition at line 63 of file sig.c.

References SIZE, signame::upper, and signame::value.

Referenced by man_signal().

post_init_signal_catch()

void post_init_signal_catch

(

void

)

Definition at line 249 of file sig.c.

References SIGHUP, SIGINT, signal_handler(), signal_mode, SIGTERM, SIGUSR1, SIGUSR2, and SM_POST_INIT.

Referenced by init_instance_handle_signals(), and restore_signal_state().

pre_init_signal_catch()

void pre_init_signal_catch

(

void

)

Definition at line 235 of file sig.c.

References SIGHUP, SIGINT, signal_handler(), signal_mode, SIGTERM, SIGUSR1, SIGUSR2, and SM_PRE_INIT.

Referenced by init_instance_handle_signals(), openvpn_main(), and restore_signal_state().

print_signal()

void print_signal	(	const struct signal_info *	si,
		const char *	title,
		int	msglevel
	)

Definition at line 130 of file sig.c.

References ASSERT, msg, SIG_SOURCE_CONNECTION_FAILED, SIG_SOURCE_HARD, SIG_SOURCE_SOFT, SIGHUP, SIGINT, signal_name(), signal_info::signal_received, signal_info::signal_text, SIGTERM, SIGUSR1, and signal_info::source.

Referenced by multi_close_instance_on_signal(), and openvpn_main().

print_status()

void print_status	(	const struct context *	c,
		struct status_output *	so
	)

Definition at line 282 of file sig.c.

References context::c1, context::c2, counter_format, gc_free(), gc_new(), context_2::link_read_bytes, context_2::link_read_bytes_auth, context_2::link_write_bytes, status_flush(), status_printf(), status_reset(), tap_win_getinfo(), time_string(), context_2::tun_read_bytes, context_2::tun_write_bytes, context_1::tuntap, and tuntap_defined().

Referenced by check_status_file(), management_callback_status_p2p(), and process_sigusr2().

process_explicit_exit_notification_timer_wakeup()

void process_explicit_exit_notification_timer_wakeup

(

struct context *

c

)

Definition at line 340 of file sig.c.

References ASSERT, context::c2, options::ce, ETT_DEFAULT, event_timeout_clear(), event_timeout_trigger(), connection_entry::explicit_exit_notification, context_2::explicit_exit_notification_interval, context_2::explicit_exit_notification_time_wait, now, OCC_EXIT, context_2::occ_op, context::options, context::sig, signal_info::signal_received, signal_info::signal_text, SIGTERM, and context_2::timeval.

Referenced by process_coarse_timers().

process_signal()

bool process_signal

(

struct context *

c

)

Definition at line 426 of file sig.c.

References ignore_restart_signals(), process_sigterm(), process_sigusr2(), context::sig, SIGINT, signal_info::signal_received, SIGTERM, and SIGUSR2.

Referenced by process_signal_p2p().

register_signal()

void register_signal	(	struct context *	c,
		int	sig,
		const char *	text
	)

Definition at line 447 of file sig.c.

References context::sig, signal_info::signal_received, signal_info::signal_text, and SIGTERM.

Referenced by check_add_routes(), check_inactivity_timeout(), check_scheduled_exit(), check_server_poll_timeout(), check_tls(), check_tls_errors_co(), check_tls_errors_nco(), ignore_restart_signals(), incoming_push_message(), multi_client_generate_tls_keys(), process_incoming_link_part1(), process_outgoing_link(), read_incoming_link(), and read_incoming_tun().

remap_signal()

void remap_signal

(

struct context *

c

)

Definition at line 365 of file sig.c.

References context::options, options::remap_sigusr1, context::sig, signal_info::signal_received, and SIGUSR1.

Referenced by init_instance_handle_signals(), multi_close_instance_on_signal(), and process_signal_p2p().

restore_signal_state()

void restore_signal_state

(

void

)

Definition at line 264 of file sig.c.

References post_init_signal_catch(), pre_init_signal_catch(), signal_mode, SM_POST_INIT, and SM_PRE_INIT.

Referenced by possibly_become_daemon().

signal_description()

const char* signal_description	(	const int	signum,
		const char *	sigtext
	)

Definition at line 91 of file sig.c.

References signal_name().

Referenced by do_close_tun().

signal_name()

const char* signal_name	(	const int	sig,
		const bool	upper
	)

Definition at line 77 of file sig.c.

References signame::lower, SIZE, signame::upper, and signame::value.

Referenced by ignore_restart_signals(), man_signal(), print_signal(), signal_description(), and signal_restart_status().

signal_restart_status()

void signal_restart_status

(

const struct signal_info *

si

)

Definition at line 184 of file sig.c.

References management_set_state(), OPENVPN_STATE_EXITING, OPENVPN_STATE_RECONNECTING, SIGHUP, SIGINT, signal_name(), signal_info::signal_received, signal_info::signal_text, SIGTERM, and SIGUSR1.

Referenced by openvpn_main().

throw_signal()

void throw_signal

(

const int

signum

)

Definition at line 104 of file sig.c.

References SIG_SOURCE_HARD, siginfo_static, signal_info::signal_received, and signal_info::source.

Referenced by man_connect(), man_signal(), multi_process_timeout(), signal_handler(), and win_ctrl_handler().

throw_signal_soft()

void throw_signal_soft	(	const int	signum,
		const char *	signal_text
	)

Definition at line 111 of file sig.c.

References SIG_SOURCE_SOFT, siginfo_static, signal_info::signal_received, signal_info::signal_text, and signal_info::source.

Referenced by apply_pull_filter(), do_preresolve(), man_connect(), man_record_peer_info(), and man_reset_client_socket().

Variable Documentation

siginfo_static

struct signal_info siginfo_static

Definition at line 46 of file sig.c.

Referenced by halt_non_edge_triggered_signals(), openvpn_main(), throw_signal(), throw_signal_soft(), win32_signal_get(), and win_ctrl_handler().