openvpn/proxy.h

   1 /*
   2  *  OpenVPN -- An application to securely tunnel IP networks
   3  *             over a single TCP/UDP port, with support for SSL/TLS-based
   4  *             session authentication and key exchange,
   5  *             packet encryption, packet authentication, and
   6  *             packet compression.
   7  *
   8  *  Copyright (C) 2002-2005 OpenVPN Solutions LLC <info@openvpn.net>
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License version 2
  12  *  as published by the Free Software Foundation.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program (see the file COPYING included with this
  21  *  distribution); if not, write to the Free Software Foundation, Inc.,
  22  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23  */
  24
  25 #ifndef PROXY_H
  26 #define PROXY_H
  27
  28 #ifdef ENABLE_HTTP_PROXY
  29
  30 #include "buffer.h"
  31 #include "misc.h"
  32
  33 /* HTTP CONNECT authentication methods */
  34 #define HTTP_AUTH_NONE  0
  35 #define HTTP_AUTH_BASIC 1
  36 #define HTTP_AUTH_NTLM  2
  37 #define HTTP_AUTH_N     3
  38
  39 struct http_proxy_options {
  40   const char *server;
  41   int port;
  42   bool retry;
  43   int timeout;
  44   const char *auth_method_string;
  45   const char *auth_file;
  46   const char *http_version;
  47   const char *user_agent;
  48 };
  49
  50 struct http_proxy_info {
  51   bool defined;
  52   int auth_method;
  53   struct http_proxy_options options;
  54   struct user_pass up;
  55 };
  56
  57 struct http_proxy_info *new_http_proxy (const struct http_proxy_options *o,
  58                                         struct gc_arena *gc);
  59
  60 void establish_http_proxy_passthru (struct http_proxy_info *p,
  61                                     socket_descriptor_t sd, /* already open to proxy */
  62                                     const char *host,       /* openvpn server remote */
  63                                     const int port,         /* openvpn server port */
  64                                     struct buffer *lookahead,
  65                                     volatile int *signal_received);
  66
  67 uint8_t *make_base64_string2 (const uint8_t *str, int str_len, struct gc_arena *gc);
  68 uint8_t *make_base64_string (const uint8_t *str, struct gc_arena *gc);
  69
  70 #endif
  71 #endif