/* IBM_PROLOG_BEGIN_TAG */ /* This is an automatically generated prolog. */ /* */ /* gos720 src/gos/2d/XTOP/programs/xsm/auth.c 1.2 */ /* */ /* Licensed Materials - Property of IBM */ /* */ /* COPYRIGHT International Business Machines Corp. 1996,2004 */ /* All Rights Reserved */ /* */ /* US Government Users Restricted Rights - Use, duplication or */ /* disclosure restricted by GSA ADP Schedule Contract with IBM Corp. */ /* */ /* IBM_PROLOG_END_TAG */ /* SCCSID_BEGIN_TAG */ #ifndef lint static char sccsid[] = "@(#)96 1.2 src/gos/2d/XTOP/programs/xsm/auth.c, xsample, gos720 3/23/04 13:59:07"; #endif /* SCCSID_END_TAG */ /* $XConsortium: auth.c,v 1.12 94/12/30 16:09:14 mor Exp $ */ /****************************************************************************** Copyright (c) 1993 X Consortium 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 THE X CONSORTIUM 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 the X Consortium shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from the X Consortium. ******************************************************************************/ #include "xsm.h" #include static char *addAuthFile = NULL; static char *remAuthFile = NULL; /* * Host Based Authentication Callback. This callback is invoked if * the connecting client can't offer any authentication methods that * we can accept. We can accept/reject based on the hostname. */ Bool HostBasedAuthProc (hostname) char *hostname; { return (0); /* For now, we don't support host based authentication */ } /* * We use temporary files which contain commands to add/remove entries from * the .ICEauthority file. */ static void write_iceauth (addfp, removefp, entry) FILE *addfp; FILE *removefp; IceAuthDataEntry *entry; { fprintf (addfp, "add %s \"\" %s %s ", entry->protocol_name, entry->network_id, entry->auth_name); fprintfhex (addfp, entry->auth_data_length, entry->auth_data); fprintf (addfp, "\n"); fprintf (removefp, "remove protoname=%s protodata=\"\" netid=%s authname=%s\n", entry->protocol_name, entry->network_id, entry->auth_name); } static char * unique_filename (path, prefix) char *path; char *prefix; { #ifndef X_NOT_POSIX return ((char *) tempnam (path, prefix)); #else char tempFile[PATH_MAX]; char *tmp; sprintf (tempFile, "%s/%sXXXXXX", path, prefix); tmp = (char *) mktemp (tempFile); if (tmp) { char *ptr = (char *) malloc (strlen (tmp) + 1); strcpy (ptr, tmp); return (ptr); } else return (NULL); #endif } /* * Provide authentication data to clients that wish to connect */ #define MAGIC_COOKIE_LEN 16 Status SetAuthentication (count, listenObjs, authDataEntries) int count; IceListenObj *listenObjs; IceAuthDataEntry **authDataEntries; { FILE *addfp = NULL; FILE *removefp = NULL; char *path; int original_umask; char command[PATH_MAX+16]; int i; original_umask = umask (0077); /* disallow non-owner access */ path = (char *) getenv ("SM_SAVE_DIR"); if (!path) { path = (char *) getenv ("HOME"); if (!path) path = "."; } if ((addAuthFile = unique_filename (path, ".xsm")) == NULL) goto bad; if (!(addfp = fopen (addAuthFile, "w"))) goto bad; if ((remAuthFile = unique_filename (path, ".xsm")) == NULL) goto bad; if (!(removefp = fopen (remAuthFile, "w"))) goto bad; if ((*authDataEntries = (IceAuthDataEntry *) XtMalloc ( count * 2 * sizeof (IceAuthDataEntry))) == NULL) goto bad; for (i = 0; i < count * 2; i += 2) { (*authDataEntries)[i].network_id = IceGetListenConnectionString (listenObjs[i/2]); (*authDataEntries)[i].protocol_name = "ICE"; (*authDataEntries)[i].auth_name = "MIT-MAGIC-COOKIE-1"; (*authDataEntries)[i].auth_data = IceGenerateMagicCookie (MAGIC_COOKIE_LEN); (*authDataEntries)[i].auth_data_length = MAGIC_COOKIE_LEN; (*authDataEntries)[i+1].network_id = IceGetListenConnectionString (listenObjs[i/2]); (*authDataEntries)[i+1].protocol_name = "XSMP"; (*authDataEntries)[i+1].auth_name = "MIT-MAGIC-COOKIE-1"; (*authDataEntries)[i+1].auth_data = IceGenerateMagicCookie (MAGIC_COOKIE_LEN); (*authDataEntries)[i+1].auth_data_length = MAGIC_COOKIE_LEN; write_iceauth (addfp, removefp, &(*authDataEntries)[i]); write_iceauth (addfp, removefp, &(*authDataEntries)[i+1]); IceSetPaAuthData (2, &(*authDataEntries)[i]); IceSetHostBasedAuthProc (listenObjs[i/2], HostBasedAuthProc); } fclose (addfp); fclose (removefp); umask (original_umask); sprintf (command, "iceauth source %s", addAuthFile); execute_system_command (command); unlink (addAuthFile); return (1); bad: if (addfp) fclose (addfp); if (removefp) fclose (removefp); if (addAuthFile) { unlink (addAuthFile); free (addAuthFile); } if (remAuthFile) { unlink (remAuthFile); free (remAuthFile); } return (0); } /* * Free up authentication data. */ void FreeAuthenticationData (count, authDataEntries) int count; IceAuthDataEntry *authDataEntries; { /* Each transport has entries for ICE and XSMP */ char command[PATH_MAX+16]; int i; for (i = 0; i < count * 2; i++) { free (authDataEntries[i].network_id); free (authDataEntries[i].auth_data); } XtFree ((char *) authDataEntries); sprintf (command, "iceauth source %s", remAuthFile); execute_system_command (command); unlink (remAuthFile); free (addAuthFile); free (remAuthFile); }