hw/xfree86/common/xf86Extensions.c

   1 /*
   2  * Copyright © 2011 Daniel Stone
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  * Author: Daniel Stone <daniel@fooishbar.org>
  24  */
  25
  26 #ifdef HAVE_XORG_CONFIG_H
  27 #include <xorg-config.h>
  28 #endif
  29
  30 #include "extension.h"
  31 #include "globals.h"
  32
  33 #include "xf86.h"
  34 #include "xf86Config.h"
  35 #include "xf86Module.h"
  36 #include "xf86Extensions.h"
  37 #include "xf86Opt.h"
  38 #include "optionstr.h"
  39
  40 #ifdef XSELINUX
  41 #include "xselinux.h"
  42 #endif
  43
  44 #ifdef XFreeXDGA
  45 #include <X11/extensions/xf86dgaproto.h>
  46 #endif
  47
  48 #ifdef XF86VIDMODE
  49 #include <X11/extensions/xf86vmproto.h>
  50 #include "vidmodeproc.h"
  51 #endif
  52
  53 /*
  54  * DDX-specific extensions.
  55  */
  56 static const ExtensionModule extensionModules[] = {
  57 #ifdef XF86VIDMODE
  58     {
  59         XFree86VidModeExtensionInit,
  60         XF86VIDMODENAME,
  61         &noXFree86VidModeExtension
  62     },
  63 #endif
  64 #ifdef XFreeXDGA
  65     {
  66         XFree86DGAExtensionInit,
  67         XF86DGANAME,
  68         &noXFree86DGAExtension
  69     },
  70 #endif
  71 #ifdef XF86DRI
  72     {
  73         XFree86DRIExtensionInit,
  74         "XFree86-DRI",
  75         &noXFree86DRIExtension
  76     },
  77 #endif
  78 #ifdef DRI2
  79     {
  80         DRI2ExtensionInit,
  81         DRI2_NAME,
  82         &noDRI2Extension
  83     }
  84 #endif
  85 };
  86
  87 static void
  88 load_extension_config(void)
  89 {
  90     XF86ConfModulePtr mod_con = xf86configptr->conf_modules;
  91     XF86LoadPtr modp;
  92     int i;
  93
  94     /* Only the best. */
  95     if (!mod_con)
  96         return;
  97
  98     nt_list_for_each_entry(modp, mod_con->mod_load_lst, list.next) {
  99         InputOption *opt;
 100
 101         if (strcasecmp(modp->load_name, "extmod") != 0)
 102             continue;
 103
 104         /* extmod options are of the form "omit <extension-name>" */
 105         nt_list_for_each_entry(opt, modp->load_opt, list.next) {
 106             const char *key = input_option_get_key(opt);
 107             if (strncasecmp(key, "omit", 4) != 0 || strlen(key) < 5)
 108                 continue;
 109             if (EnableDisableExtension(key + 4, FALSE))
 110                 xf86MarkOptionUsed(opt);
 111         }
 112
 113 #ifdef XSELINUX
 114         if ((opt = xf86FindOption(modp->load_opt,
 115                                   "SELinux mode disabled"))) {
 116             xf86MarkOptionUsed(opt);
 117             selinuxEnforcingState = SELINUX_MODE_DISABLED;
 118         }
 119         if ((opt = xf86FindOption(modp->load_opt,
 120                                   "SELinux mode permissive"))) {
 121             xf86MarkOptionUsed(opt);
 122             selinuxEnforcingState = SELINUX_MODE_PERMISSIVE;
 123         }
 124         if ((opt = xf86FindOption(modp->load_opt,
 125                                   "SELinux mode enforcing"))) {
 126             xf86MarkOptionUsed(opt);
 127             selinuxEnforcingState = SELINUX_MODE_ENFORCING;
 128         }
 129 #endif
 130     }
 131 }
 132
 133 void
 134 xf86ExtensionInit(void)
 135 {
 136     int i;
 137
 138     load_extension_config();
 139
 140     for (i = 0; i < ARRAY_SIZE(extensionModules); i++)
 141         LoadExtension(&extensionModules[i], TRUE);
 142 }