main.cc

   1 /*
   2  * Copyright (c) 2000, Red Hat, Inc.
   3  *
   4  *     This program is free software; you can redistribute it and/or modify
   5  *     it under the terms of the GNU General Public License as published by
   6  *     the Free Software Foundation; either version 2 of the License, or
   7  *     (at your option) any later version.
   8  *
   9  *     A copy of the GNU General Public License can be found at
  10  *     http://www.gnu.org/
  11  *
  12  * Written by DJ Delorie <dj@cygnus.com>
  13  *
  14  */
  15
  16 /* OK, here's how this works.  Each of the steps needed for install -
  17    dialogs, downloads, installs - are in their own files and have some
  18    "do_*" function (prototype in dialog.h) and a resource id (IDD_* or
  19    IDD_S_* in resource.h) for that step.  Each step is responsible for
  20    selecting the next step!  See the NEXT macro in dialog.h.  Note
  21    that the IDD_S_* ids are fake; those are for steps that don't
  22    really have a controlling dialog (some have progress dialogs, but
  23    those don't count, although they could).  Replace the IDD_S_* with
  24    IDD_* if you create a real dialog for those steps. */
  25
  26 #if 0
  27 static const char *cvsid =
  28   "\n%%% $Id$\n";
  29 #endif
  30
  31 #include "win32.h"
  32 #include <commctrl.h>
  33
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include "resource.h"
  37 #include "dialog.h"
  38 #include "state.h"
  39 #include "msg.h"
  40 #include "find.h"
  41 #include "mount.h"
  42 #include "LogFile.h"
  43 #include "version.h"
  44
  45 #include "port.h"
  46 #include "proppage.h"
  47 #include "propsheet.h"
  48
  49 // Page class headers
  50 #include "splash.h"
  51 #include "source.h"
  52 #include "root.h"
  53 #include "localdir.h"
  54 #include "net.h"
  55 #include "site.h"
  56 #include "choose.h"
  57 #include "threebar.h"
  58 #include "desktop.h"
  59
  60 #include "getopt++/GetOption.h"
  61
  62 int next_dialog;
  63
  64 HINSTANCE hinstance;
  65
  66 /* Maximum size of a SID on NT/W2K. */
  67 #define MAX_SID_LEN     40
  68
  69 /* Computes the size of an ACL in relation to the number of ACEs it
  70    should contain. */
  71 #define TOKEN_ACL_SIZE(cnt) (sizeof(ACL) + \
  72                              (cnt) * (sizeof(ACCESS_ALLOWED_ACE) + MAX_SID_LEN))
  73
  74 #define iswinnt         (GetVersion() < 0x80000000)
  75
  76 void
  77 set_default_dacl ()
  78 {
  79   /* To assure that the created files have a useful ACL, the
  80      default DACL in the process token is set to full access to
  81      everyone. This applies to files and subdirectories created
  82      in directories which don't propagate permissions to child
  83      objects. */
  84
  85   /* Create a buffer which has enough room to contain the TOKEN_DEFAULT_DACL
  86      structure plus an ACL with one ACE. */
  87   char buf[sizeof (TOKEN_DEFAULT_DACL) + TOKEN_ACL_SIZE (1)];
  88
  89   /* First initialize the TOKEN_DEFAULT_DACL structure. */
  90   PTOKEN_DEFAULT_DACL dacl = (PTOKEN_DEFAULT_DACL) buf;
  91   dacl->DefaultDacl = (PACL) (buf + sizeof *dacl);
  92
  93   /* Initialize the ACL for containing one ACE. */
  94   if (!InitializeAcl (dacl->DefaultDacl, TOKEN_ACL_SIZE (1), ACL_REVISION))
  95     {
  96       log (LOG_TIMESTAMP) << "InitializeAcl() failed: " << GetLastError ()
  97         << endLog;
  98       return;
  99     }
 100
 101   /* Get the SID for "Everyone". */
 102   PSID sid;
 103   SID_IDENTIFIER_AUTHORITY sid_auth = { SECURITY_WORLD_SID_AUTHORITY };
 104   if (!AllocateAndInitializeSid (&sid_auth, 1, 0, 0, 0, 0, 0, 0, 0, 0, &sid))
 105     {
 106       log (LOG_TIMESTAMP) << "AllocateAndInitializeSid() failed: " <<
 107            GetLastError () << endLog;
 108       return;
 109     }
 110
 111   /* Create the ACE which grants full access to "Everyone" and store it
 112      in dacl->DefaultDacl. */
 113   if (!AddAccessAllowedAce
 114       (dacl->DefaultDacl, ACL_REVISION, GENERIC_ALL, sid))
 115     {
 116       log (LOG_TIMESTAMP) << "AddAccessAllowedAce() failed: %lu" <<
 117            GetLastError () << endLog;
 118       goto out;
 119     }
 120
 121   /* Get the processes access token. */
 122   HANDLE token;
 123   if (!OpenProcessToken (GetCurrentProcess (),
 124                          TOKEN_READ | TOKEN_ADJUST_DEFAULT, &token))
 125     {
 126       log (LOG_TIMESTAMP) << "OpenProcessToken() failed: "
 127         << GetLastError () << endLog;
 128       goto out;
 129     }
 130
 131   /* Set the default DACL to the above computed ACL. */
 132   if (!SetTokenInformation (token, TokenDefaultDacl, dacl, sizeof buf))
 133     log (LOG_TIMESTAMP) << "OpenProcessToken() failed: " << GetLastError ()
 134       << endLog;
 135
 136   /* Close token handle. */
 137   CloseHandle (token);
 138
 139 out:
 140   /* Free memory occupied by the "Everyone" SID. */
 141   FreeSid (sid);
 142 }
 143
 144 // Other threads talk to this page, so we need to have it externable.
 145 ThreeBarProgressPage Progress;
 146
 147 // This is a little ugly, but the decision about where to log occurs
 148 // after the source is set AND the root mount obtained
 149 // so we make the actual logger available to the appropriate routine(s).
 150 LogFile theLog;
 151
 152 #ifndef __CYGWIN__
 153 int WINAPI
 154 WinMain (HINSTANCE h,
 155          HINSTANCE hPrevInstance, LPSTR command_line, int cmd_show)
 156 {
 157
 158   hinstance = h;
 159 #else
 160 int
 161 main (int argc, char **argv)
 162 {
 163   hinstance = GetModuleHandle (NULL);
 164 #endif
 165
 166   char *cwd=new char[_MAX_PATH];
 167   GetCurrentDirectory (_MAX_PATH, cwd);
 168   local_dir = String (cwd);
 169   delete cwd;
 170
 171   LogSingleton::SetInstance (theLog);
 172   theLog.setFile (LOG_BABBLE, local_dir + "/setup.log.full", false);
 173   theLog.setFile (0, local_dir + "/setup.log", true);
 174
 175   next_dialog = IDD_SPLASH;
 176
 177   log (LOG_PLAIN) << "Starting cygwin install, version " << version << endLog;
 178
 179   SplashPage Splash;
 180   SourcePage Source;
 181   RootPage Root;
 182   LocalDirPage LocalDir;
 183   NetPage Net;
 184   SitePage Site;
 185   ChooserPage Chooser;
 186   DesktopSetupPage Desktop;
 187   PropSheet MainWindow;
 188
 189   log (LOG_TIMESTAMP) << "Current Directory: " << local_dir << endLog;
 190
 191   // TODO: make an equivalent for __argv under cygwin.
 192   char **_argv;
 193 #ifndef __CYGWIN__
 194   int argc;
 195 //  char **_argv;
 196 #ifndef __CYGWIN__
 197   for (argc = 0, _argv = __argv; *_argv; _argv++)++argc;
 198   _argv = __argv;
 199 #else
 200 //  for (argc = 0, _argv = argv; *_argv; _argv++)++argc;
 201   _argv = argv;
 202 #endif
 203 #else
 204   _argv = argv;
 205 #endif
 206
 207   if (!GetOption::GetInstance().Process (argc,_argv))
 208     theLog.exit(1);
 209 // #endif
 210
 211   /* Set the default DACL only on NT/W2K. 9x/ME has no idea of access
 212      control lists and security at all. */
 213   if (iswinnt)
 214     set_default_dacl ();
 215
 216   // Initialize common controls
 217   InitCommonControls ();
 218
 219   // Init window class lib
 220   Window::SetAppInstance (hinstance);
 221
 222   // Create pages
 223   Splash.Create ();
 224   Source.Create ();
 225   Root.Create ();
 226   LocalDir.Create ();
 227   Net.Create ();
 228   Site.Create ();
 229   Chooser.Create ();
 230   Progress.Create ();
 231   Desktop.Create ();
 232
 233   // Add pages to sheet
 234   MainWindow.AddPage (&Splash);
 235   MainWindow.AddPage (&Source);
 236   MainWindow.AddPage (&Root);
 237   MainWindow.AddPage (&LocalDir);
 238   MainWindow.AddPage (&Net);
 239   MainWindow.AddPage (&Site);
 240   MainWindow.AddPage (&Chooser);
 241   MainWindow.AddPage (&Progress);
 242   MainWindow.AddPage (&Desktop);
 243
 244   // Create the PropSheet main window
 245   MainWindow.Create ();
 246
 247   theLog.exit (0);
 248   /* Keep gcc happy :} */
 249   return 0;
 250 }