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/* |
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vpn.h -- header for vpn.C |
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Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de> |
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|
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This file is part of GVPE. |
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|
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GVPE is free software; you can redistribute it and/or modify it |
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under the terms of the GNU General Public License as published by the |
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Free Software Foundation; either version 3 of the License, or (at your |
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option) any later version. |
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|
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This program is distributed in the hope that it will be useful, but |
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WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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Public License for more details. |
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|
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You should have received a copy of the GNU General Public License along |
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with this program; if not, see <http://www.gnu.org/licenses/>. |
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|
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Additional permission under GNU GPL version 3 section 7 |
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|
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If you modify this Program, or any covered work, by linking or |
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combining it with the OpenSSL project's OpenSSL library (or a modified |
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version of that library), containing parts covered by the terms of the |
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OpenSSL or SSLeay licenses, the licensors of this Program grant you |
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additional permission to convey the resulting work. Corresponding |
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Source for a non-source form of such a combination shall include the |
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source code for the parts of OpenSSL used as well as that of the |
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covered work. |
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*/ |
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|
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#ifndef GVPE_VPN_H__ |
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#define GVPE_VPN_H__ |
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|
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#include "global.h" |
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#include "conf.h" |
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#include "device.h" |
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#include "connection.h" |
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|
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struct vpn |
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{ |
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int udpv4_fd , tcpv4_fd, ipv4_fd , icmpv4_fd , dnsv4_fd; |
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int udpv4_tos, ipv4_tos, icmpv4_tos, dnsv4_tos; |
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|
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int events; |
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|
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enum { |
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EVENT_RECONNECT = 1, |
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EVENT_SHUTDOWN = 2, |
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}; |
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|
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void event_cb (ev::timer &w, int revents); ev::timer event; |
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|
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tap_device *tap; |
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|
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typedef vector<connection *> conns_vector; |
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conns_vector conns; |
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|
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// called when any conenction has been established |
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void connection_established (connection *c); |
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|
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// return true if src can connect directly to dst |
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bool can_direct (conf_node *src, conf_node *dst) const; |
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connection *find_router_for (const connection *dst); |
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|
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void reconnect_all (); |
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void shutdown_all (); |
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|
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void tap_ev (ev::io &w, int revents); ev::io tap_ev_watcher; |
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void inject_data_packet (tap_packet *pkt, int dst); |
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|
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void send_connect_request (connection *c); |
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|
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void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi); |
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bool send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos = 0); |
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|
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#if ENABLE_TCP |
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void tcpv4_ev (ev::io &w, int revents); ev::io tcpv4_ev_watcher; |
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bool send_tcpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos); |
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#endif |
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|
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#if ENABLE_ICMP |
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void icmpv4_ev (ev::io &w, int revents); ev::io icmpv4_ev_watcher; |
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bool send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos); |
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#endif |
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|
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#if ENABLE_DNS |
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vector<struct dns_snd *> dns_sndpq; |
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sockinfo dns_forwarder; |
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|
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void dnsv4_ev (ev::io &w, int revents); ev::io dnsv4_ev_watcher; |
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void dnsv4_server (struct dns_packet &pkt); |
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void dnsv4_client (struct dns_packet &pkt); |
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|
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bool send_dnsv4_packet (vpn_packet *pkt, const sockinfo &si, int tos); |
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#endif |
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|
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void udpv4_ev (ev::io &w, int revents); ev::io udpv4_ev_watcher; |
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bool send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos); |
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|
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void ipv4_ev (ev::io &w, int revents); ev::io ipv4_ev_watcher; |
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bool send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos); |
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|
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vpn (); |
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~vpn (); |
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|
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int setup_socket (u8 prot, int family, int type, int proto); |
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int setup (); |
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bool drop_privileges (); |
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|
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void dump_status (); |
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|
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void script_init_env (); |
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const char *script_if_init (); |
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const char *script_if_up (); |
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}; |
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|
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extern vpn network; // THE vpn |
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|
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#endif |
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