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 /* 23 * Copyright 2003 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * Portions of this source code were derived from Berkeley 4.3 BSD 32 * under license from the Regents of the University of California. 33 */ 34 35 #pragma ident "%Z%%M% %I% %E% SMI" 36 37 /* 38 * authunix_prot.c 39 * XDR for UNIX style authentication parameters for RPC 40 */ 41 42 #include <sys/param.h> 43 #include <sys/time.h> 44 #include <sys/cred.h> 45 #include <sys/proc.h> 46 #include <sys/user.h> 47 #include <sys/utsname.h> 48 49 #include <rpc/types.h> 50 #include <rpc/rpc_sztypes.h> 51 #include <rpc/xdr.h> 52 #include <rpc/auth.h> 53 #include <rpc/auth_unix.h> 54 #include <rpc/clnt.h> 55 56 /* 57 * XDR for unix authentication parameters. 58 */ 59 bool_t 60 xdr_authunix_parms(XDR *xdrs, struct authunix_parms *p) 61 { 62 if (xdr_u_int(xdrs, &p->aup_time) && 63 xdr_string(xdrs, &p->aup_machname, MAX_MACHINE_NAME) && 64 xdr_int(xdrs, (int *)&(p->aup_uid)) && 65 xdr_int(xdrs, (int *)&(p->aup_gid)) && 66 xdr_array(xdrs, (caddr_t *)&(p->aup_gids), 67 &(p->aup_len), NGRPS, sizeof (int), 68 (xdrproc_t)xdr_int)) { 69 return (TRUE); 70 } 71 return (FALSE); 72 } 73 74 /* 75 * XDR user id types (uid_t) 76 */ 77 bool_t 78 xdr_uid_t(XDR *xdrs, uid_t *ip) 79 { 80 #ifdef lint 81 (void) (xdr_short(xdrs, (short *)ip)); 82 return (xdr_int32(xdrs, (int32_t *)ip)); 83 #else 84 if (sizeof (uid_t) == sizeof (int32_t)) { 85 return (xdr_int(xdrs, (int32_t *)ip)); 86 } else { 87 return (xdr_short(xdrs, (short *)ip)); 88 } 89 #endif 90 } 91 92 /* 93 * XDR group id types (gid_t) 94 */ 95 bool_t 96 xdr_gid_t(XDR *xdrs, gid_t *ip) 97 { 98 #ifdef lint 99 (void) (xdr_short(xdrs, (short *)ip)); 100 return (xdr_int32(xdrs, (int32_t *)ip)); 101 #else 102 if (sizeof (gid_t) == sizeof (int32_t)) { 103 return (xdr_int32(xdrs, (int32_t *)ip)); 104 } else { 105 return (xdr_short(xdrs, (short *)ip)); 106 } 107 #endif 108 } 109 110 /* 111 * XDR kernel unix auth parameters. 112 * Goes out of the u struct directly. 113 * NOTE: this is an XDR_ENCODE only routine. 114 */ 115 bool_t 116 xdr_authkern(XDR *xdrs) 117 { 118 uid_t uid; 119 gid_t gid; 120 uint_t len; 121 caddr_t groups; 122 char *name = uts_nodename(); 123 struct cred *cr; 124 time_t now; 125 126 if (xdrs->x_op != XDR_ENCODE) 127 return (FALSE); 128 129 cr = CRED(); 130 uid = crgetuid(cr); 131 gid = crgetgid(cr); 132 len = crgetngroups(cr); 133 groups = (caddr_t)crgetgroups(cr); 134 now = gethrestime_sec(); 135 if (xdr_uint32(xdrs, (uint32_t *)&now) && 136 xdr_string(xdrs, &name, MAX_MACHINE_NAME) && 137 xdr_uid_t(xdrs, &uid) && 138 xdr_gid_t(xdrs, &gid) && 139 xdr_array(xdrs, &groups, &len, NGRPS, sizeof (int), 140 (xdrproc_t)xdr_int)) 141 return (TRUE); 142 return (FALSE); 143 } 144 145 /* 146 * XDR loopback unix auth parameters. 147 * NOTE: this is an XDR_ENCODE only routine. 148 */ 149 bool_t 150 xdr_authloopback(XDR *xdrs) 151 { 152 uid_t uid; 153 gid_t gid; 154 int len; 155 caddr_t groups; 156 char *name = uts_nodename(); 157 struct cred *cr; 158 time_t now; 159 160 if (xdrs->x_op != XDR_ENCODE) 161 return (FALSE); 162 163 cr = CRED(); 164 uid = crgetuid(cr); 165 gid = crgetgid(cr); 166 len = crgetngroups(cr); 167 groups = (caddr_t)crgetgroups(cr); 168 now = gethrestime_sec(); 169 if (xdr_uint32(xdrs, (uint32_t *)&now) && 170 xdr_string(xdrs, &name, MAX_MACHINE_NAME) && 171 xdr_uid_t(xdrs, &uid) && 172 xdr_gid_t(xdrs, &gid) && 173 xdr_array(xdrs, &groups, (uint_t *)&len, NGRPS_LOOPBACK, 174 sizeof (int), (xdrproc_t)xdr_int)) 175 return (TRUE); 176 return (FALSE); 177 } 178