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/* |
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conf.h -- configuration database |
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Copyright (C) 2003-2005 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 |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General 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 |
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along with gvpe; if not, write to the Free Software |
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Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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|
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#ifndef GVPE_CONF_H__ |
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#define GVPE_CONF_H__ |
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|
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#include <vector> |
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|
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#include <openssl/rsa.h> |
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|
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#include "slog.h" |
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#include "global.h" |
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|
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#define DEFAULT_REKEY 3600 |
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#define DEFAULT_KEEPALIVE 60 // one keepalive/minute (it's just 8 bytes...) |
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#define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare |
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#define DEFAULT_MTU 1500 // let's ether-net |
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#define DEFAULT_MAX_RETRY 3600 // retry at least this often |
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#define DEFAULT_MAX_TTL 60 // packets expire after this many seconds |
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#define DEFAULT_MAX_QUEUE 512 // never queue more than this many packets |
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|
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#define DEFAULT_DNS_TIMEOUT_FACTOR 8.F // initial retry timeout multiple |
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#define DEFAULT_DNS_SEND_INTERVAL .01F // minimum send interval |
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#define DEFAULT_DNS_OVERLAP_FACTOR .5F // RTT * LATENCY_FACTOR == sending rate |
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#define DEFAULT_DNS_MAX_OUTSTANDING 100 // max. number of outstanding requests |
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|
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enum |
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{ |
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PROT_UDPv4 = 0x01, // udp over ipv4 |
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PROT_IPv4 = 0x02, // generic ip protocol |
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PROT_TCPv4 = 0x04, // tcp over ipv4 (server) |
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PROT_ICMPv4 = 0x08, // icmp over ipv4 |
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PROT_DNSv4 = 0x10, // dns tunnel ipv4 (server) |
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}; |
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|
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#define PROT_RELIABLE (PROT_TCPv4 | PROT_DNSv4) |
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#define PROT_SLOW PROT_DNSv4 |
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|
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// select the "best" protocol of the available ones |
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u8 best_protocol (u8 protset); |
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const char *strprotocol (u8 protocol); |
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|
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struct conf_node |
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{ |
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int id; // the id of this node, a 12-bit-number |
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|
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RSA *rsa_key; // his public key |
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char *nodename; // nodename, an internal nickname. |
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char *hostname; // hostname, if known, or NULL. |
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char *if_up_data; |
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#if ENABLE_DNS |
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char *domain; // dns tunnel domain |
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#endif |
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char *dns_hostname; |
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u16 dns_port; |
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|
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u8 protocols; // protocols this host can send & receive |
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u16 udp_port, tcp_port; // the port to bind to |
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int max_retry; |
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double max_ttl; // packets expire after this many seconds |
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int max_queue; // maixmum send queue length |
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|
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enum connectmode { C_ONDEMAND, C_NEVER, C_ALWAYS, C_DISABLED } connectmode; |
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bool compress; |
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bool inherit_tos; // inherit TOS in packets send to this destination |
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|
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vector<const char *> allow_direct; |
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vector<const char *> deny_direct; |
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|
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u32 routerprio; |
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|
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bool can_direct (struct conf_node *other); |
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|
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void print (); |
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|
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~conf_node (); |
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}; |
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|
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struct configuration |
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{ |
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typedef vector<conf_node *> node_vector; |
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node_vector nodes; |
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conf_node default_node; |
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conf_node *thisnode; |
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int mtu; // the mtu used for outgoing tunnel packets |
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double rekey; // rekey interval |
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double keepalive; // keepalive probes interval |
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char *ifname; // the interface name (tap0 ...) |
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bool ifpersist; // should the interface be persistent |
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char *prikeyfile; |
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RSA *rsa_key; // our private rsa key |
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loglevel llevel; |
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u8 ip_proto; // the ip protocol to use |
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#if ENABLE_ICMP |
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u8 icmp_type; // the icmp type for the icmp-protocol |
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#endif |
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|
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char *script_if_up; |
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char *script_node_up; |
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char *script_node_down; |
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char *pidfilename; |
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|
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#if ENABLE_HTTP_PROXY |
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char *proxy_auth; // login:password |
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char *proxy_host; // the proxy hostname, e.g. proxy1.example.net |
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u16 proxy_port; // the proxy port, e.g. 3128 |
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#endif |
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|
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#if ENABLE_DNS |
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char *dns_forw_host; |
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u16 dns_forw_port; |
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float dns_timeout_factor; |
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float dns_send_interval; |
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float dns_overlap_factor; |
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int dns_max_outstanding; |
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#endif |
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|
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void init (); |
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void cleanup (); |
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void clear (); |
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|
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// create a filename from string, replacing %s by the nodename |
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// and using relative paths under confbase. |
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char *config_filename (const char *name, const char *dflt); |
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|
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void print (); |
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|
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configuration (); |
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~configuration (); |
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}; |
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|
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struct configuration_parser |
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{ |
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configuration &conf; |
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|
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bool need_keys; |
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conf_node *node; |
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|
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int argc; |
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char **argv; |
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|
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configuration_parser (configuration &conf, bool need_keys, int argc, char **argv); |
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|
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const char *parse_line (char *line); |
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void parse_argv (); |
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}; |
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|
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extern struct configuration conf; |
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|
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#define THISNODE ::conf.thisnode |
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|
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#endif |
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|
