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/* |
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conf.C -- configuration code |
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Copyright (C) 2003-2008,2011,2018 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 |
| 9 |
Free Software Foundation; either version 3 of the License, or (at your |
| 10 |
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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#include "config.h" |
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|
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#include <cstdio> |
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#include <cstdlib> |
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#include <cstring> |
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|
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#include <errno.h> |
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#include <netdb.h> |
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#include <sys/stat.h> |
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#include <sys/types.h> |
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#include <unistd.h> |
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#include <pwd.h> |
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|
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#include "netcompat.h" |
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|
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#include <openssl/err.h> |
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#include <openssl/pem.h> |
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#include <openssl/rsa.h> |
| 50 |
#include <openssl/rand.h> |
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#include <openssl/bn.h> |
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|
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#include "conf.h" |
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#include "slog.h" |
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#include "util.h" |
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|
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char *confbase; |
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char *thisnode; |
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char *identname; |
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|
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struct configuration conf; |
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|
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u8 |
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best_protocol (u8 protset) |
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{ |
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if (protset & PROT_IPv4 ) return PROT_IPv4; |
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if (protset & PROT_ICMPv4) return PROT_ICMPv4; |
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if (protset & PROT_UDPv4 ) return PROT_UDPv4; |
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if (protset & PROT_TCPv4 ) return PROT_TCPv4; |
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if (protset & PROT_DNSv4 ) return PROT_DNSv4; |
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|
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return 0; |
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} |
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|
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const char * |
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strprotocol (u8 protocol) |
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{ |
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if (protocol & PROT_IPv4 ) return "rawip"; |
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if (protocol & PROT_ICMPv4) return "icmp"; |
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if (protocol & PROT_UDPv4 ) return "udp"; |
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if (protocol & PROT_TCPv4 ) return "tcp"; |
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if (protocol & PROT_DNSv4 ) return "dns"; |
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|
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return "<unknown>"; |
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} |
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|
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static bool |
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match_list (const vector<const char *> &list, const char *str) |
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{ |
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for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); ) |
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if ((*i)[0] == '*' && !(*i)[1]) |
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return true; |
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else if (!strcmp (*i, str)) |
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return true; |
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|
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return false; |
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} |
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|
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bool |
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conf_node::may_direct (struct conf_node *other) |
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{ |
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if (match_list (allow_direct, other->nodename)) |
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return true; |
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|
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if (match_list (deny_direct, other->nodename)) |
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return false; |
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|
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return true; |
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} |
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|
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conf_node::~conf_node () |
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{ |
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#if 0 |
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// does not work, because string pointers etc. are shared |
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// is not called, however |
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if (rsa_key) |
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RSA_free (rsa_key); |
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|
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free (nodename); |
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free (hostname); |
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free (if_up_data); |
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#if ENABLE_DNS |
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free (domain); |
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free (dns_hostname); |
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#endif |
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#endif |
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} |
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|
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void |
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configuration::init () |
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{ |
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memset (this, 0, sizeof (*this)); |
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|
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mtu = DEFAULT_MTU; |
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nfmark = 0; |
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rekey = DEFAULT_REKEY; |
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keepalive = DEFAULT_KEEPALIVE; |
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llevel = L_INFO; |
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ip_proto = IPPROTO_GRE; |
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#if ENABLE_ICMP |
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icmp_type = ICMP_ECHOREPLY; |
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#endif |
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|
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default_node.udp_port = DEFAULT_UDPPORT; |
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default_node.tcp_port = DEFAULT_UDPPORT; // ehrm |
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default_node.connectmode = conf_node::C_ALWAYS; |
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default_node.compress = true; |
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default_node.protocols = 0; |
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default_node.max_retry = DEFAULT_MAX_RETRY; |
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default_node.max_ttl = DEFAULT_MAX_TTL; |
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default_node.max_queue = DEFAULT_MAX_QUEUE; |
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default_node.if_up_data = strdup (""); |
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|
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#if ENABLE_DNS |
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default_node.dns_port = 0; // default is 0 == client |
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|
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dns_case_preserving = true; |
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dns_forw_host = strdup ("127.0.0.1"); |
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dns_forw_port = 53; |
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dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR; |
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dns_send_interval = DEFAULT_DNS_SEND_INTERVAL; |
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dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR; |
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dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING; |
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#endif |
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|
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pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid"); |
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seed_dev = strdup ("/dev/urandom"); |
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reseed = DEFAULT_RESEED; |
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} |
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|
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void |
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configuration::cleanup () |
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{ |
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if (rsa_key) |
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RSA_free (rsa_key); |
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|
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rsa_key = 0; |
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|
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free (seed_dev); seed_dev = 0; |
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free (pidfilename); pidfilename = 0; |
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free (ifname); ifname = 0; |
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#if ENABLE_HTTP_PROXY |
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free (proxy_host); proxy_host = 0; |
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free (proxy_auth); proxy_auth = 0; |
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#endif |
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#if ENABLE_DNS |
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free (dns_forw_host); dns_forw_host = 0; |
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#endif |
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free (change_root); change_root = 0; |
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free (script_if_up); script_if_up = 0; |
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free (script_node_up); script_node_up = 0; |
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free (script_node_change); script_node_change = 0; |
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free (script_node_down); script_node_down = 0; |
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} |
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|
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void |
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configuration::clear () |
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{ |
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for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i) |
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delete *i; |
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|
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nodes.clear (); |
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|
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cleanup (); |
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init (); |
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} |
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|
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conf_node * |
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configuration::find_node (const char *name) |
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{ |
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for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i) |
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if (!strcmp ((*i)->nodename, name)) |
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return *i; |
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|
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return 0; |
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} |
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|
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//static bool |
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//is_true (const char *name) |
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//{ |
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//re |
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//} |
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|
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#define parse_bool(target,name,trueval,falseval) do { \ |
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if (!strcmp (val, "yes")) target = trueval; \ |
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else if (!strcmp (val, "no")) target = falseval; \ |
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else if (!strcmp (val, "true")) target = trueval; \ |
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else if (!strcmp (val, "false")) target = falseval; \ |
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else if (!strcmp (val, "on")) target = trueval; \ |
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else if (!strcmp (val, "off")) target = falseval; \ |
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else \ |
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return _("illegal boolean value, only 'yes|true|on' or 'no|false|off' allowed, ignored"); \ |
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} while (0) |
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|
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const char * |
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configuration_parser::parse_line (char *line) |
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{ |
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{ |
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char *end = line + strlen (line); |
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|
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while (end >= line && *end < ' ') |
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end--; |
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|
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*++end = 0; |
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} |
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|
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char *tok = line; |
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const char *var = strtok (tok, "\t ="); |
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tok = 0; |
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|
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if (!var || !var[0]) |
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return 0; /* no tokens on this line */ |
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|
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if (var[0] == '#') |
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return 0; /* comment: ignore */ |
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|
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if (!strcmp (var, "global")) |
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{ |
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node = &conf.default_node; |
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return 0; |
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} |
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|
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char *val = strtok (NULL, "\t\n\r ="); |
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|
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if (!val || val[0] == '#') |
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return _("no value given for variable, ignored"); |
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|
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else if (!strcmp (var, "on")) |
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{ |
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if (::thisnode |
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&& ((val[0] == '!' && strcmp (val + 1, ::thisnode)) |
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|| !strcmp (val, ::thisnode))) |
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return parse_line (strtok (NULL, "\n\r")); |
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} |
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|
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else if (!strcmp (var, "include")) |
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{ |
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char *fname = conf.config_filename (val); |
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parse_file (fname); |
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free (fname); |
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} |
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|
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// truly global |
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else if (!strcmp (var, "loglevel")) |
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{ |
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loglevel l = string_to_loglevel (val); |
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|
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if (l == L_NONE) |
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return _("unknown loglevel, ignored"); |
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} |
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else if (!strcmp (var, "serial")) |
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strncpy (conf.serial, val, sizeof (conf.serial)); |
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else if (!strcmp (var, "ip-proto")) |
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conf.ip_proto = atoi (val); |
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else if (!strcmp (var, "icmp-type")) |
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{ |
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#if ENABLE_ICMP |
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conf.icmp_type = atoi (val); |
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#endif |
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} |
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else if (!strcmp (var, "chuser")) |
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{ |
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struct passwd *pw = getpwnam (val); |
| 304 |
if (!pw) |
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return _("user specified for chuser not found"); |
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|
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conf.change_uid = pw->pw_uid; |
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conf.change_gid = pw->pw_gid; |
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} |
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else if (!strcmp (var, "chuid")) |
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conf.change_uid = atoi (val); |
| 312 |
else if (!strcmp (var, "chgid")) |
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conf.change_gid = atoi (val); |
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else if (!strcmp (var, "chroot")) |
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free (conf.change_root), conf.change_root = strdup (val); |
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|
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// per node |
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else if (!strcmp (var, "node")) |
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{ |
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node = conf.find_node (val); |
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|
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if (!node) |
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{ |
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conf.default_node.id++; |
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node = new conf_node (conf.default_node); |
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conf.nodes.push_back (node); |
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node->nodename = strdup (val); |
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} |
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} |
| 330 |
else if (!strcmp (var, "private-key")) |
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free (conf.prikeyfile), conf.prikeyfile = strdup (val); |
| 332 |
else if (!strcmp (var, "ifpersist")) |
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parse_bool (conf.ifpersist, "ifpersist", true, false); |
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else if (!strcmp (var, "ifname")) |
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free (conf.ifname), conf.ifname = strdup (val); |
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else if (!strcmp (var, "rekey")) |
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conf.rekey = atoi (val); |
| 338 |
else if (!strcmp (var, "keepalive")) |
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conf.keepalive = atoi (val); |
| 340 |
else if (!strcmp (var, "mtu")) |
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conf.mtu = atoi (val); |
| 342 |
else if (!strcmp (var, "nfmark")) |
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conf.nfmark = atoi (val); |
| 344 |
else if (!strcmp (var, "seed-device")) |
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free (conf.seed_dev), conf.seed_dev = strdup (val); |
| 346 |
else if (!strcmp (var, "seed-interval")) |
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conf.reseed = atoi (val); |
| 348 |
else if (!strcmp (var, "if-up")) |
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free (conf.script_if_up), conf.script_if_up = strdup (val); |
| 350 |
else if (!strcmp (var, "node-up")) |
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free (conf.script_node_up), conf.script_node_up = strdup (val); |
| 352 |
else if (!strcmp (var, "node-change")) |
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free (conf.script_node_change), conf.script_node_change = strdup (val); |
| 354 |
else if (!strcmp (var, "node-down")) |
| 355 |
free (conf.script_node_down), conf.script_node_down = strdup (val); |
| 356 |
else if (!strcmp (var, "pid-file")) |
| 357 |
free (conf.pidfilename), conf.pidfilename = strdup (val); |
| 358 |
else if (!strcmp (var, "dns-forw-host")) |
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{ |
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#if ENABLE_DNS |
| 361 |
free (conf.dns_forw_host), conf.dns_forw_host = strdup (val); |
| 362 |
#endif |
| 363 |
} |
| 364 |
else if (!strcmp (var, "dns-forw-port")) |
| 365 |
{ |
| 366 |
#if ENABLE_DNS |
| 367 |
conf.dns_forw_port = atoi (val); |
| 368 |
#endif |
| 369 |
} |
| 370 |
else if (!strcmp (var, "dns-timeout-factor")) |
| 371 |
{ |
| 372 |
#if ENABLE_DNS |
| 373 |
conf.dns_timeout_factor = atof (val); |
| 374 |
#endif |
| 375 |
} |
| 376 |
else if (!strcmp (var, "dns-send-interval")) |
| 377 |
{ |
| 378 |
#if ENABLE_DNS |
| 379 |
conf.dns_send_interval = atoi (val); |
| 380 |
#endif |
| 381 |
} |
| 382 |
else if (!strcmp (var, "dns-overlap-factor")) |
| 383 |
{ |
| 384 |
#if ENABLE_DNS |
| 385 |
conf.dns_overlap_factor = atof (val); |
| 386 |
#endif |
| 387 |
} |
| 388 |
else if (!strcmp (var, "dns-max-outstanding")) |
| 389 |
{ |
| 390 |
#if ENABLE_DNS |
| 391 |
conf.dns_max_outstanding = atoi (val); |
| 392 |
#endif |
| 393 |
} |
| 394 |
else if (!strcmp (var, "dns-case-preserving")) |
| 395 |
{ |
| 396 |
#if ENABLE_DNS |
| 397 |
parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false); |
| 398 |
#endif |
| 399 |
} |
| 400 |
else if (!strcmp (var, "http-proxy-host")) |
| 401 |
{ |
| 402 |
#if ENABLE_HTTP_PROXY |
| 403 |
free (conf.proxy_host), conf.proxy_host = strdup (val); |
| 404 |
#endif |
| 405 |
} |
| 406 |
else if (!strcmp (var, "http-proxy-port")) |
| 407 |
{ |
| 408 |
#if ENABLE_HTTP_PROXY |
| 409 |
conf.proxy_port = atoi (val); |
| 410 |
#endif |
| 411 |
} |
| 412 |
else if (!strcmp (var, "http-proxy-auth")) |
| 413 |
{ |
| 414 |
#if ENABLE_HTTP_PROXY |
| 415 |
conf.proxy_auth = (char *)base64_encode ((const u8 *)val, strlen (val)); |
| 416 |
#endif |
| 417 |
} |
| 418 |
|
| 419 |
/* node-specific, non-defaultable */ |
| 420 |
else if (node != &conf.default_node && !strcmp (var, "hostname")) |
| 421 |
free (node->hostname), node->hostname = strdup (val); |
| 422 |
|
| 423 |
/* node-specific, defaultable */ |
| 424 |
else if (!strcmp (var, "udp-port")) |
| 425 |
node->udp_port = atoi (val); |
| 426 |
else if (!strcmp (var, "tcp-port")) |
| 427 |
node->tcp_port = atoi (val); |
| 428 |
else if (!strcmp (var, "dns-hostname")) |
| 429 |
{ |
| 430 |
#if ENABLE_DNS |
| 431 |
free (node->dns_hostname), node->dns_hostname = strdup (val); |
| 432 |
#endif |
| 433 |
} |
| 434 |
else if (!strcmp (var, "dns-port")) |
| 435 |
{ |
| 436 |
#if ENABLE_DNS |
| 437 |
node->dns_port = atoi (val); |
| 438 |
#endif |
| 439 |
} |
| 440 |
else if (!strcmp (var, "dns-domain")) |
| 441 |
{ |
| 442 |
#if ENABLE_DNS |
| 443 |
free (node->domain), node->domain = strdup (val); |
| 444 |
#endif |
| 445 |
} |
| 446 |
else if (!strcmp (var, "if-up-data")) |
| 447 |
free (node->if_up_data), node->if_up_data = strdup (val); |
| 448 |
else if (!strcmp (var, "router-priority")) |
| 449 |
node->routerprio = atoi (val); |
| 450 |
else if (!strcmp (var, "max-retry")) |
| 451 |
node->max_retry = atoi (val); |
| 452 |
else if (!strcmp (var, "connect")) |
| 453 |
{ |
| 454 |
if (!strcmp (val, "ondemand")) |
| 455 |
node->connectmode = conf_node::C_ONDEMAND; |
| 456 |
else if (!strcmp (val, "never")) |
| 457 |
node->connectmode = conf_node::C_NEVER; |
| 458 |
else if (!strcmp (val, "always")) |
| 459 |
node->connectmode = conf_node::C_ALWAYS; |
| 460 |
else if (!strcmp (val, "disabled")) |
| 461 |
node->connectmode = conf_node::C_DISABLED; |
| 462 |
else |
| 463 |
return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored"); |
| 464 |
} |
| 465 |
else if (!strcmp (var, "inherit-tos")) |
| 466 |
parse_bool (node->inherit_tos, "inherit-tos", true, false); |
| 467 |
else if (!strcmp (var, "compress")) |
| 468 |
parse_bool (node->compress, "compress", true, false); |
| 469 |
else if (!strcmp (var, "low-power")) |
| 470 |
parse_bool (node->low_power, "low-power", true, false); |
| 471 |
// all these bool options really really cost a lot of executable size! |
| 472 |
else if (!strcmp (var, "enable-tcp")) |
| 473 |
{ |
| 474 |
#if ENABLE_TCP |
| 475 |
u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v; |
| 476 |
#endif |
| 477 |
} |
| 478 |
else if (!strcmp (var, "enable-icmp")) |
| 479 |
{ |
| 480 |
#if ENABLE_ICMP |
| 481 |
u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) | v; |
| 482 |
#endif |
| 483 |
} |
| 484 |
else if (!strcmp (var, "enable-dns")) |
| 485 |
{ |
| 486 |
#if ENABLE_DNS |
| 487 |
u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) | v; |
| 488 |
#endif |
| 489 |
} |
| 490 |
else if (!strcmp (var, "enable-udp")) |
| 491 |
{ |
| 492 |
u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v; |
| 493 |
} |
| 494 |
else if (!strcmp (var, "enable-rawip")) |
| 495 |
{ |
| 496 |
u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v; |
| 497 |
} |
| 498 |
else if (!strcmp (var, "allow-direct")) |
| 499 |
node->allow_direct.push_back (strdup (val)); |
| 500 |
else if (!strcmp (var, "deny-direct")) |
| 501 |
node->deny_direct.push_back (strdup (val)); |
| 502 |
else if (!strcmp (var, "max-ttl")) |
| 503 |
node->max_ttl = atof (val); |
| 504 |
else if (!strcmp (var, "max-queue")) |
| 505 |
node->max_queue = atoi (val); |
| 506 |
|
| 507 |
// unknown or misplaced |
| 508 |
else |
| 509 |
return _("unknown configuration directive - ignored"); |
| 510 |
|
| 511 |
return 0; |
| 512 |
} |
| 513 |
|
| 514 |
void |
| 515 |
conf_node::finalise () |
| 516 |
{ |
| 517 |
if (max_queue < 1) |
| 518 |
{ |
| 519 |
slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename); |
| 520 |
max_queue = 1; |
| 521 |
} |
| 522 |
|
| 523 |
if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED)) |
| 524 |
{ |
| 525 |
//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename); |
| 526 |
connectmode = C_ALWAYS; |
| 527 |
} |
| 528 |
} |
| 529 |
|
| 530 |
void |
| 531 |
configuration_parser::parse_file (const char *fname) |
| 532 |
{ |
| 533 |
if (FILE *f = fopen (fname, "r")) |
| 534 |
{ |
| 535 |
char line [2048]; |
| 536 |
int lineno = 0; |
| 537 |
|
| 538 |
while (fgets (line, sizeof (line), f)) |
| 539 |
{ |
| 540 |
lineno++; |
| 541 |
|
| 542 |
const char *warn = parse_line (line); |
| 543 |
|
| 544 |
if (warn) |
| 545 |
slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno); |
| 546 |
} |
| 547 |
|
| 548 |
fclose (f); |
| 549 |
} |
| 550 |
else |
| 551 |
{ |
| 552 |
slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno)); |
| 553 |
exit (EXIT_FAILURE); |
| 554 |
} |
| 555 |
} |
| 556 |
|
| 557 |
configuration_parser::configuration_parser (configuration &conf, |
| 558 |
bool need_keys, |
| 559 |
int argc, |
| 560 |
char **argv) |
| 561 |
: conf (conf), need_keys (need_keys), argc (argc), argv (argv) |
| 562 |
{ |
| 563 |
char *fname; |
| 564 |
|
| 565 |
conf.clear (); |
| 566 |
node = &conf.default_node; |
| 567 |
|
| 568 |
asprintf (&fname, "%s/gvpe.conf", confbase); |
| 569 |
parse_file (fname); |
| 570 |
free (fname); |
| 571 |
|
| 572 |
fname = conf.config_filename (conf.prikeyfile, "hostkey"); |
| 573 |
|
| 574 |
if (FILE *f = fopen (fname, "r")) |
| 575 |
{ |
| 576 |
conf.rsa_key = RSA_new (); |
| 577 |
|
| 578 |
if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL)) |
| 579 |
{ |
| 580 |
ERR_load_RSA_strings (); ERR_load_PEM_strings (); |
| 581 |
slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0)); |
| 582 |
exit (EXIT_FAILURE); |
| 583 |
} |
| 584 |
|
| 585 |
require (RSA_blinding_on (conf.rsa_key, 0)); |
| 586 |
|
| 587 |
fclose (f); |
| 588 |
} |
| 589 |
else |
| 590 |
{ |
| 591 |
if (need_keys) |
| 592 |
{ |
| 593 |
slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno)); |
| 594 |
exit (EXIT_FAILURE); |
| 595 |
} |
| 596 |
} |
| 597 |
|
| 598 |
free (fname); |
| 599 |
|
| 600 |
fname = conf.config_filename (conf.pidfilename); |
| 601 |
free (conf.pidfilename); conf.pidfilename = fname; |
| 602 |
|
| 603 |
for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i) |
| 604 |
{ |
| 605 |
conf_node *node = *i; |
| 606 |
char *fname; |
| 607 |
FILE *f; |
| 608 |
|
| 609 |
asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename); |
| 610 |
|
| 611 |
f = fopen (fname, "r"); |
| 612 |
if (f) |
| 613 |
{ |
| 614 |
node->rsa_key = RSA_new (); |
| 615 |
|
| 616 |
if (!PEM_read_RSAPublicKey (f, &node->rsa_key, NULL, NULL)) |
| 617 |
{ |
| 618 |
ERR_load_RSA_strings (); ERR_load_PEM_strings (); |
| 619 |
slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0)); |
| 620 |
exit (EXIT_FAILURE); |
| 621 |
} |
| 622 |
|
| 623 |
require (RSA_blinding_on (node->rsa_key, 0)); |
| 624 |
|
| 625 |
fclose (f); |
| 626 |
} |
| 627 |
else |
| 628 |
{ |
| 629 |
slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno)); |
| 630 |
|
| 631 |
if (need_keys) |
| 632 |
exit (EXIT_FAILURE); |
| 633 |
} |
| 634 |
|
| 635 |
free (fname); |
| 636 |
|
| 637 |
(*i)->finalise (); |
| 638 |
} |
| 639 |
|
| 640 |
if (::thisnode) |
| 641 |
{ |
| 642 |
conf.thisnode = conf.find_node (::thisnode); |
| 643 |
|
| 644 |
if (need_keys) |
| 645 |
{ |
| 646 |
if (!conf.thisnode) |
| 647 |
{ |
| 648 |
slog (L_NOTICE, _("local node ('%s') not found in config file, aborting."), ::thisnode); |
| 649 |
exit (EXIT_FAILURE); |
| 650 |
} |
| 651 |
|
| 652 |
if (conf.rsa_key && conf.thisnode->rsa_key) |
| 653 |
{ |
| 654 |
const BIGNUM *conf_n, *conf_e, *thisnode_n, *thisnode_e; |
| 655 |
|
| 656 |
#if OPENSSL_VERSION_NUMBER >= 0x10100000 && !LIBRESSL_VERSION_NUMBER |
| 657 |
RSA_get0_key (conf.rsa_key, &conf_n, &conf_e, 0); |
| 658 |
RSA_get0_key (conf.thisnode->rsa_key, &thisnode_n, &thisnode_e, 0); |
| 659 |
#else |
| 660 |
conf_n = conf.thisnode->rsa_key->n; |
| 661 |
conf_e = conf.thisnode->rsa_key->e; |
| 662 |
thisnode_n = conf.rsa_key->n; |
| 663 |
thisnode_e = conf.rsa_key->e; |
| 664 |
#endif |
| 665 |
if (BN_cmp (conf_n, thisnode_n) != 0 || BN_cmp (conf_e, thisnode_e) != 0) |
| 666 |
{ |
| 667 |
slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode); |
| 668 |
exit (EXIT_FAILURE); |
| 669 |
} |
| 670 |
} |
| 671 |
} |
| 672 |
} |
| 673 |
|
| 674 |
parse_argv (); |
| 675 |
} |
| 676 |
|
| 677 |
void |
| 678 |
configuration_parser::parse_argv () |
| 679 |
{ |
| 680 |
for (int i = 0; i < argc; ++i) |
| 681 |
{ |
| 682 |
char *v = argv [i]; |
| 683 |
|
| 684 |
if (!*v) |
| 685 |
continue; |
| 686 |
|
| 687 |
char *enode = v; |
| 688 |
|
| 689 |
while (*enode != '.' && *enode > ' ' && *enode != '=' && *enode) |
| 690 |
enode++; |
| 691 |
|
| 692 |
if (*enode != '.') |
| 693 |
enode = 0; |
| 694 |
|
| 695 |
if (enode) |
| 696 |
{ |
| 697 |
char *val = strdup (v); |
| 698 |
val [enode - v] = 0; |
| 699 |
node = conf.find_node (val); |
| 700 |
free (val); |
| 701 |
|
| 702 |
if (!node) |
| 703 |
{ |
| 704 |
slog (L_WARN, _("command line option '%s' refers to unknown node, ignoring."), v); |
| 705 |
continue; |
| 706 |
} |
| 707 |
} |
| 708 |
else |
| 709 |
node = &conf.default_node; |
| 710 |
|
| 711 |
const char *warn = parse_line (enode ? enode + 1 : v); |
| 712 |
|
| 713 |
if (warn) |
| 714 |
slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v); |
| 715 |
} |
| 716 |
} |
| 717 |
|
| 718 |
char * |
| 719 |
configuration::config_filename (const char *name, const char *dflt) |
| 720 |
{ |
| 721 |
char *fname; |
| 722 |
|
| 723 |
asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>"); |
| 724 |
|
| 725 |
if (!ABSOLUTE_PATH (fname)) |
| 726 |
{ |
| 727 |
char *rname = fname; |
| 728 |
asprintf (&fname, "%s/%s", confbase, rname); |
| 729 |
free (rname); |
| 730 |
} |
| 731 |
|
| 732 |
return fname; |
| 733 |
} |
| 734 |
|
| 735 |
void |
| 736 |
conf_node::print () |
| 737 |
{ |
| 738 |
printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n", |
| 739 |
id, |
| 740 |
id >> 8, id & 0xff, |
| 741 |
compress ? 'Y' : 'N', |
| 742 |
connectmode == C_ONDEMAND ? "ondemand" |
| 743 |
: connectmode == C_NEVER ? "never" |
| 744 |
: connectmode == C_ALWAYS ? "always" |
| 745 |
: connectmode == C_DISABLED ? "disabled" |
| 746 |
: "", |
| 747 |
nodename, |
| 748 |
protocols, |
| 749 |
hostname ? hostname : "", |
| 750 |
hostname ? ":" : "", |
| 751 |
hostname ? udp_port : 0 |
| 752 |
); |
| 753 |
} |
| 754 |
|
| 755 |
void |
| 756 |
configuration::print () |
| 757 |
{ |
| 758 |
printf (_("\nConfiguration\n\n")); |
| 759 |
printf (_("# of nodes: %d\n"), nodes.size ()); |
| 760 |
printf (_("this node: %s\n"), thisnode ? thisnode->nodename : "<unset>"); |
| 761 |
printf (_("MTU: %d\n"), mtu); |
| 762 |
printf (_("rekeying interval: %d\n"), rekey); |
| 763 |
printf (_("keepalive interval: %d\n"), keepalive); |
| 764 |
printf (_("interface: %s\n"), ifname); |
| 765 |
printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>"); |
| 766 |
printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1); |
| 767 |
printf ("\n"); |
| 768 |
|
| 769 |
printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n", |
| 770 |
_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port")); |
| 771 |
|
| 772 |
for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i) |
| 773 |
(*i)->print (); |
| 774 |
|
| 775 |
printf ("\n"); |
| 776 |
} |
| 777 |
|
| 778 |
configuration::configuration () |
| 779 |
{ |
| 780 |
asprintf (&confbase, "%s/gvpe", CONFDIR); |
| 781 |
|
| 782 |
init (); |
| 783 |
} |
| 784 |
|
| 785 |
configuration::~configuration () |
| 786 |
{ |
| 787 |
cleanup (); |
| 788 |
} |
| 789 |
|
