mirror of
https://github.com/OpenVPN/openvpn.git
synced 2025-05-08 21:25:53 +08:00
3cf6c93282
easier for OpenVPN client UIs to start a pre-existing client config file with proxy options, or to adaptively fall back to a proxy connection if a direct connection fails. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@5652 e7ae566f-a301-0410-adde-c780ea21d3b5
115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
/*
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* OpenVPN -- An application to securely tunnel IP networks
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* over a single TCP/UDP port, with support for SSL/TLS-based
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* session authentication and key exchange,
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* packet encryption, packet authentication, and
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* packet compression.
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*
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* Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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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 this program (see the file COPYING included with this
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* distribution); if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef PROXY_H
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#define PROXY_H
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#include "buffer.h"
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#include "misc.h"
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#ifdef GENERAL_PROXY_SUPPORT
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/*
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* Return value for get_proxy_settings to automatically
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* determine proxy information.
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*/
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struct auto_proxy_info_entry {
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char *server;
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int port;
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};
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struct auto_proxy_info {
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struct auto_proxy_info_entry http;
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struct auto_proxy_info_entry socks;
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};
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struct auto_proxy_info *get_proxy_settings (char **err, struct gc_arena *gc);
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#ifdef WIN32
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void show_win_proxy_settings (const int msglevel);
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#endif /* WIN32 */
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#endif /* GENERAL_PROXY_SUPPORT */
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#ifdef ENABLE_HTTP_PROXY
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/* HTTP CONNECT authentication methods */
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#define HTTP_AUTH_NONE 0
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#define HTTP_AUTH_BASIC 1
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#define HTTP_AUTH_DIGEST 2
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#define HTTP_AUTH_NTLM 3
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#define HTTP_AUTH_NTLM2 4
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#define HTTP_AUTH_N 5 /* number of HTTP_AUTH methods */
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struct http_proxy_options {
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const char *server;
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int port;
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bool retry;
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int timeout;
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# define PAR_NO 0 /* don't support any auth retries */
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# define PAR_ALL 1 /* allow all proxy auth protocols */
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# define PAR_NCT 2 /* disable cleartext proxy auth protocols */
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int auth_retry;
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const char *auth_method_string;
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const char *auth_file;
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const char *http_version;
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const char *user_agent;
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};
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struct http_proxy_options_simple {
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const char *server;
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int port;
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int auth_retry;
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};
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struct http_proxy_info {
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bool defined;
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int auth_method;
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struct http_proxy_options options;
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struct user_pass up;
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char *proxy_authenticate;
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bool queried_creds;
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};
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struct http_proxy_info *http_proxy_new (const struct http_proxy_options *o,
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struct auto_proxy_info *auto_proxy_info);
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void http_proxy_close (struct http_proxy_info *hp);
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bool establish_http_proxy_passthru (struct http_proxy_info *p,
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socket_descriptor_t sd, /* already open to proxy */
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const char *host, /* openvpn server remote */
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const int port, /* openvpn server port */
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struct buffer *lookahead,
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volatile int *signal_received);
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uint8_t *make_base64_string2 (const uint8_t *str, int str_len, struct gc_arena *gc);
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uint8_t *make_base64_string (const uint8_t *str, struct gc_arena *gc);
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#endif /* ENABLE_HTTP_PROXY */
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#endif /* PROXY_H */
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