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/*
*Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved.
*
*Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
*"Software"), to deal in the Software without restriction, including
*without limitation the rights to use, copy, modify, merge, publish,
*distribute, sublicense, and/or sell copies of the Software, and to
*permit persons to whom the Software is furnished to do so, subject to
*the following conditions:
*
*The above copyright notice and this permission notice shall be
*included in all copies or substantial portions of the Software.
*
*THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
*EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
*MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
*NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR
*ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
*CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
*WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*Except as contained in this notice, the name of Harold L Hunt II
*shall not be used in advertising or otherwise to promote the sale, use
*or other dealings in this Software without prior written authorization
*from Harold L Hunt II.
*
* Authors: Harold L Hunt II
*/
#ifdef HAVE_XWIN_CONFIG_H
#include <xwin-config.h>
#endif
#include "win.h"
/* Includes for authorization */
#include "securitysrv.h"
#include "os/osdep.h"
#include <xcb/xcb.h>
/* Need to get this from Xlib.h */
extern void XSetAuthorization(
const char * /* name */,
int /* namelen */,
const char * /* data */,
int /* datalen */
);
/*
* Constants
*/
#define AUTH_NAME "MIT-MAGIC-COOKIE-1"
/*
* Locals
*/
static XID g_authId = 0;
static unsigned int g_uiAuthDataLen = 0;
static char *g_pAuthData = NULL;
static xcb_auth_info_t auth_info;
/*
* Code to generate a MIT-MAGIC-COOKIE-1, copied from under XCSECURITY
*/
#ifndef XCSECURITY
void
GenerateRandomData(int len, char *buf)
{
int fd;
fd = open("/dev/urandom", O_RDONLY);
read(fd, buf, len);
close(fd);
}
static char cookie[16]; /* 128 bits */
XID
MitGenerateCookie(unsigned data_length,
const char *data,
XID id, unsigned *data_length_return, char **data_return)
{
int i = 0;
int status;
while (data_length--) {
cookie[i++] += *data++;
if (i >= sizeof(cookie))
i = 0;
}
GenerateRandomData(sizeof(cookie), cookie);
status = MitAddCookie(sizeof(cookie), cookie, id);
if (!status) {
id = -1;
}
else {
*data_return = cookie;
*data_length_return = sizeof(cookie);
}
return id;
}
static
XID
GenerateAuthorization(unsigned name_length,
const char *name,
unsigned data_length,
const char *data,
unsigned *data_length_return, char **data_return)
{
return MitGenerateCookie(data_length, data,
FakeClientID(0), data_length_return, data_return);
}
#endif
/*
* Generate authorization cookie for internal server clients
*/
Bool
winGenerateAuthorization(void)
{
Bool fFreeAuth = FALSE;
SecurityAuthorizationPtr pAuth = NULL;
/* Call OS layer to generate authorization key */
g_authId = GenerateAuthorization(strlen(AUTH_NAME),
AUTH_NAME,
0, NULL, &g_uiAuthDataLen, &g_pAuthData);
if ((XID) ~0L == g_authId) {
ErrorF("winGenerateAuthorization - GenerateAuthorization failed\n");
goto auth_bailout;
}
else {
winDebug("winGenerateAuthorization - GenerateAuthorization success!\n"
"AuthDataLen: %d AuthData: %s\n",
g_uiAuthDataLen, g_pAuthData);
}
auth_info.name = AUTH_NAME;
auth_info.namelen = strlen(AUTH_NAME);
auth_info.data = g_pAuthData;
auth_info.datalen = g_uiAuthDataLen;
#ifdef XCSECURITY
/* Allocate structure for additional auth information */
pAuth = (SecurityAuthorizationPtr)
malloc(sizeof(SecurityAuthorizationRec));
if (!(pAuth)) {
ErrorF("winGenerateAuthorization - Failed allocating "
"SecurityAuthorizationPtr.\n");
goto auth_bailout;
}
/* Fill in the auth fields */
pAuth->id = g_authId;
pAuth->timeout = 0; /* live for x seconds after refcnt == 0 */
pAuth->group = None;
pAuth->trustLevel = XSecurityClientTrusted;
pAuth->refcnt = 1; /* this auth must stick around */
pAuth->secondsRemaining = 0;
pAuth->timer = NULL;
pAuth->eventClients = NULL;
/* Add the authorization to the server's auth list */
if (!AddResource(g_authId, SecurityAuthorizationResType, pAuth)) {
ErrorF("winGenerateAuthorization - AddResource failed for auth.\n");
fFreeAuth = TRUE;
goto auth_bailout;
}
/* Don't free the auth data, since it is still used internally */
pAuth = NULL;
#endif
return TRUE;
auth_bailout:
if (fFreeAuth)
free(pAuth);
return FALSE;
}
/* Use our generated cookie for authentication */
void
winSetAuthorization(void)
{
XSetAuthorization(AUTH_NAME,
strlen(AUTH_NAME), g_pAuthData, g_uiAuthDataLen);
}
xcb_auth_info_t *
winGetXcbAuthInfo(void)
{
if (g_pAuthData)
return &auth_info;
return NULL;
}
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