hw/xwin/winauth.c

   1 /*
   2  *Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved.
   3  *
   4  *Permission is hereby granted, free of charge, to any person obtaining
   5  * a copy of this software and associated documentation files (the
   6  *"Software"), to deal in the Software without restriction, including
   7  *without limitation the rights to use, copy, modify, merge, publish,
   8  *distribute, sublicense, and/or sell copies of the Software, and to
   9  *permit persons to whom the Software is furnished to do so, subject to
  10  *the following conditions:
  11  *
  12  *The above copyright notice and this permission notice shall be
  13  *included in all copies or substantial portions of the Software.
  14  *
  15  *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR
  19  *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
  20  *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21  *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  *Except as contained in this notice, the name of Harold L Hunt II
  24  *shall not be used in advertising or otherwise to promote the sale, use
  25  *or other dealings in this Software without prior written authorization
  26  *from Harold L Hunt II.
  27  *
  28  * Authors:     Harold L Hunt II
  29  */
  30
  31 #ifdef HAVE_XWIN_CONFIG_H
  32 #include <xwin-config.h>
  33 #endif
  34
  35 #include "winauth.h"
  36 #include "winmsg.h"
  37
  38 /* Includes for authorization */
  39 #include "securitysrv.h"
  40 #include "os/osdep.h"
  41 #include "os/mitauth.h"
  42
  43 #include <xcb/xcb.h>
  44
  45 /*
  46  * Constants
  47  */
  48
  49 #define AUTH_NAME       "MIT-MAGIC-COOKIE-1"
  50
  51 /*
  52  * Locals
  53  */
  54
  55 static XID g_authId = 0;
  56 static unsigned int g_uiAuthDataLen = 0;
  57 static char *g_pAuthData = NULL;
  58 static xcb_auth_info_t auth_info;
  59
  60 /*
  61  * Code to generate a MIT-MAGIC-COOKIE-1, copied from under XCSECURITY
  62  */
  63
  64 #ifndef XCSECURITY
  65 XID
  66 GenerateAuthorization(unsigned name_length,
  67                       const char *name,
  68                       unsigned data_length,
  69                       const char *data,
  70                       unsigned *data_length_return, char **data_return)
  71 {
  72     return MitGenerateCookie(data_length, data,
  73                              FakeClientID(0), data_length_return, data_return);
  74 }
  75 #endif
  76
  77 /*
  78  * Generate authorization cookie for internal server clients
  79  */
  80
  81 BOOL
  82 winGenerateAuthorization(void)
  83 {
  84 #ifdef XCSECURITY
  85     SecurityAuthorizationPtr pAuth = NULL;
  86 #endif
  87
  88     /* Call OS layer to generate authorization key */
  89     g_authId = GenerateAuthorization(strlen(AUTH_NAME),
  90                                      AUTH_NAME,
  91                                      0, NULL, &g_uiAuthDataLen, &g_pAuthData);
  92     if ((XID) ~0L == g_authId) {
  93         ErrorF("winGenerateAuthorization - GenerateAuthorization failed\n");
  94         return FALSE;
  95     }
  96
  97     else {
  98         winDebug("winGenerateAuthorization - GenerateAuthorization success!\n"
  99                  "AuthDataLen: %d AuthData: %s\n",
 100                  g_uiAuthDataLen, g_pAuthData);
 101     }
 102
 103     auth_info.name = strdup(AUTH_NAME);
 104     auth_info.namelen = strlen(AUTH_NAME);
 105     auth_info.data = g_pAuthData;
 106     auth_info.datalen = g_uiAuthDataLen;
 107
 108 #ifdef XCSECURITY
 109     /* Allocate structure for additional auth information */
 110     pAuth = (SecurityAuthorizationPtr)
 111         malloc(sizeof(SecurityAuthorizationRec));
 112     if (!(pAuth)) {
 113         ErrorF("winGenerateAuthorization - Failed allocating "
 114                "SecurityAuthorizationPtr.\n");
 115         return FALSE;
 116     }
 117
 118     /* Fill in the auth fields */
 119     pAuth->id = g_authId;
 120     pAuth->timeout = 0;         /* live for x seconds after refcnt == 0 */
 121     pAuth->group = None;
 122     pAuth->trustLevel = XSecurityClientTrusted;
 123     pAuth->refcnt = 1;          /* this auth must stick around */
 124     pAuth->secondsRemaining = 0;
 125     pAuth->timer = NULL;
 126     pAuth->eventClients = NULL;
 127
 128     /* Add the authorization to the server's auth list */
 129     if (!AddResource(g_authId, SecurityAuthorizationResType, pAuth)) {
 130         ErrorF("winGenerateAuthorization - AddResource failed for auth.\n");
 131         return FALSE;
 132     }
 133 #endif
 134
 135     return TRUE;
 136 }
 137
 138 xcb_auth_info_t *
 139 winGetXcbAuthInfo(void)
 140 {
 141     if (g_pAuthData)
 142         return &auth_info;
 143
 144     return NULL;
 145 }