1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 * 22 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 * 25 * Copyright (c) 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T 26 * All Rights Reserved 27 * 28 * Portions of this source code were derived from Berkeley 29 * 4.3 BSD under license from the Regents of the University of 30 * California. 31 */ 32 33 #pragma ident "%Z%%M% %I% %E% SMI" 34 /* from kerbd_handle.c 1.3 92/01/29 SMI */ 35 36 /* 37 * gssd_handle.c, Interface to gssd 38 * 39 */ 40 41 #include <unistd.h> 42 #include <rpc/rpc.h> 43 #include <rpc/clnt.h> 44 #include <stdio.h> 45 #include <string.h> 46 #include <netconfig.h> 47 #include <sys/utsname.h> 48 #include "gssd.h" 49 50 #ifdef DEBUG 51 #define dprt(msg) (void) fprintf(stderr, "%s\n", msg); 52 #else 53 #define dprt(msg) 54 #endif /* DEBUG */ 55 56 57 /* 58 * Keep the handle cached. This call may be made quite often. 59 */ 60 61 CLIENT * 62 getgssd_handle() 63 { 64 void *localhandle; 65 struct netconfig *nconf; 66 struct netconfig *tpconf; 67 static CLIENT *clnt; 68 struct timeval wait_time; 69 struct utsname u; 70 static char *hostname; 71 static bool_t first_time = TRUE; 72 73 #define TOTAL_TIMEOUT 1000 /* total timeout talking to gssd */ 74 #define TOTAL_TRIES 1 /* Number of tries */ 75 76 if (clnt) 77 return (clnt); 78 if (!(localhandle = setnetconfig())) 79 return (NULL); 80 tpconf = NULL; 81 if (first_time == TRUE) { 82 if (uname(&u) == -1) 83 return ((CLIENT *) NULL); 84 if ((hostname = strdup(u.nodename)) == (char *)NULL) 85 return ((CLIENT *) NULL); 86 first_time = FALSE; 87 } 88 while (nconf = getnetconfig(localhandle)) { 89 if (strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0) { 90 if (nconf->nc_semantics == NC_TPI_COTS_ORD) { 91 clnt = clnt_tp_create(hostname, 92 GSSPROG, GSSVERS, nconf); 93 if (clnt) { 94 dprt("got COTS_ORD\n"); 95 break; 96 } 97 } else { 98 tpconf = nconf; 99 } 100 } 101 } 102 if ((clnt == NULL) && (tpconf)) { 103 104 /* Now, try the connection-oriented loopback transport */ 105 106 clnt = clnt_tp_create(hostname, GSSPROG, GSSVERS, tpconf); 107 #ifdef DEBUG 108 if (clnt) { 109 dprt("got COTS\n"); 110 } 111 #endif /* DEBUG */ 112 } 113 endnetconfig(localhandle); 114 115 /* 116 * This bit of code uses an as yet unimplemented argument to 117 * clnt_control(). CLSET_SVC_PRIV specifies that the underlying 118 * loopback transport should be checked to ensure it is 119 * connected to a process running as root. If so, the clnt_control() 120 * call returns TRUE. If not, it returns FALSE. 121 */ 122 123 #ifdef CLSET_SVC_PRIV 124 125 if (clnt_control(clnt, CLSET_SVC_PRIV, NULL) != TRUE) { 126 clnt_destroy(clnt); 127 clnt = NULL; 128 return (NULL); 129 { 130 #endif 131 if (clnt == NULL) 132 return (NULL); 133 134 clnt->cl_auth = authsys_create("", getuid(), 0, 0, NULL); 135 if (clnt->cl_auth == NULL) { 136 clnt_destroy(clnt); 137 clnt = NULL; 138 return (NULL); 139 } 140 wait_time.tv_sec = TOTAL_TIMEOUT/TOTAL_TRIES; 141 wait_time.tv_usec = 0; 142 (void) clnt_control(clnt, CLSET_RETRY_TIMEOUT, (char *)&wait_time); 143 144 return (clnt); 145 } 146