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Diffstat (limited to 'src/openvpn/sig.h')
-rw-r--r-- | src/openvpn/sig.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/openvpn/sig.h b/src/openvpn/sig.h new file mode 100644 index 0000000..987efef --- /dev/null +++ b/src/openvpn/sig.h @@ -0,0 +1,104 @@ +/* + * OpenVPN -- An application to securely tunnel IP networks + * over a single TCP/UDP port, with support for SSL/TLS-based + * session authentication and key exchange, + * packet encryption, packet authentication, and + * packet compression. + * + * Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program (see the file COPYING included with this + * distribution); if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef SIG_H +#define SIG_H + +#include "status.h" +#include "win32.h" + +/* + * Signal information, including signal code + * and descriptive text. + */ +struct signal_info +{ + volatile int signal_received; + volatile bool hard; + const char *signal_text; +}; + +#define IS_SIG(c) ((c)->sig->signal_received) + +struct context; + +extern struct signal_info siginfo_static; + +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); + +#ifdef ENABLE_OCC +void process_explicit_exit_notification_timer_wakeup (struct context *c); +#endif + +#ifdef WIN32 + +static inline void +get_signal (volatile int *sig) +{ + *sig = win32_signal_get (&win32_signal); +} + +static inline void +halt_non_edge_triggered_signals (void) +{ + win32_signal_close (&win32_signal); +} + +#else + +static inline void +get_signal (volatile int *sig) +{ + const int i = siginfo_static.signal_received; + if (i) + *sig = i; +} + +static inline void +halt_non_edge_triggered_signals (void) +{ +} + +#endif + +#endif |