1 /* $OpenBSD: mount_xdr.c,v 1.2 1996/03/25 15:54:57 niklas Exp $ */ 2 3 /* 4 * Copyright (c) 1989 Jan-Simon Pendry 5 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine 6 * Copyright (c) 1989, 1993 7 * The Regents of the University of California. All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * Jan-Simon Pendry at Imperial College, London. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: @(#)mount_xdr.c 8.1 (Berkeley) 6/6/93 41 */ 42 43 #include "am.h" 44 #include "mount.h" 45 46 47 #if NFS_PROTOCOL_VERSION < 3 48 bool_t 49 xdr_fhandle(xdrs, objp) 50 XDR *xdrs; 51 fhandle objp; 52 { 53 if (!xdr_opaque(xdrs, objp, FHSIZE)) { 54 return (FALSE); 55 } 56 return (TRUE); 57 } 58 59 bool_t 60 xdr_fhstatus(xdrs, objp) 61 XDR *xdrs; 62 fhstatus *objp; 63 { 64 if (!xdr_u_int(xdrs, &objp->fhs_stat)) { 65 return (FALSE); 66 } 67 switch (objp->fhs_stat) { 68 case 0: 69 if (!xdr_fhandle(xdrs, objp->fhs_fhandle)) { 70 return (FALSE); 71 } 72 break; 73 } 74 return (TRUE); 75 } 76 77 #else 78 #include <nfs/rpcv2.h> 79 80 int 81 xdr_fhstatus(xdrsp, objp) 82 XDR *xdrsp; 83 fhstatus *objp; 84 { 85 register int i; 86 long auth, authcnt, authfnd = 0; 87 88 89 if (!xdr_u_long(xdrsp, &objp->fhs_stat)) 90 return (0); 91 if (objp->fhs_stat) 92 return (1); 93 switch (objp->fhs_vers) { 94 case 1: 95 objp->fhs_size = NFSX_V2FH; 96 return (xdr_opaque(xdrsp, (caddr_t)objp->fhs_fhandle, NFSX_V2FH)); 97 case 3: 98 if (!xdr_long(xdrsp, &objp->fhs_size)) 99 return (0); 100 if (objp->fhs_size <= 0 || objp->fhs_size > NFSX_V3FHMAX) 101 return (0); 102 if (!xdr_opaque(xdrsp, (caddr_t)objp->fhs_fhandle, objp->fhs_size)) 103 return (0); 104 if (!xdr_long(xdrsp, &authcnt)) 105 return (0); 106 for (i = 0; i < authcnt; i++) { 107 if (!xdr_long(xdrsp, &auth)) 108 return (0); 109 if (auth == objp->fhs_auth) 110 authfnd++; 111 } 112 /* 113 * Some servers, such as DEC's OSF/1 return a nil authenticator 114 * list to indicate RPCAUTH_UNIX. 115 */ 116 if (!authfnd && (authcnt > 0 || objp->fhs_auth != RPCAUTH_UNIX)) 117 objp->fhs_stat = EAUTH; 118 return (1); 119 default: 120 return (0); 121 }; 122 } 123 #endif 124 125 126 127 128 129 bool_t 130 xdr_dirpath(xdrs, objp) 131 XDR *xdrs; 132 dirpath *objp; 133 { 134 if (!xdr_string(xdrs, objp, MNTPATHLEN)) { 135 return (FALSE); 136 } 137 return (TRUE); 138 } 139 140 141 142 143 bool_t 144 xdr_name(xdrs, objp) 145 XDR *xdrs; 146 name *objp; 147 { 148 if (!xdr_string(xdrs, objp, MNTNAMLEN)) { 149 return (FALSE); 150 } 151 return (TRUE); 152 } 153 154 155 156 157 bool_t 158 xdr_mountlist(xdrs, objp) 159 XDR *xdrs; 160 mountlist *objp; 161 { 162 if (!xdr_pointer(xdrs, (char **)objp, sizeof(struct mountbody), xdr_mountbody)) { 163 return (FALSE); 164 } 165 return (TRUE); 166 } 167 168 169 170 bool_t 171 xdr_mountbody(xdrs, objp) 172 XDR *xdrs; 173 mountbody *objp; 174 { 175 if (!xdr_name(xdrs, &objp->ml_hostname)) { 176 return (FALSE); 177 } 178 if (!xdr_dirpath(xdrs, &objp->ml_directory)) { 179 return (FALSE); 180 } 181 if (!xdr_mountlist(xdrs, &objp->ml_next)) { 182 return (FALSE); 183 } 184 return (TRUE); 185 } 186 187 188 189 190 bool_t 191 xdr_groups(xdrs, objp) 192 XDR *xdrs; 193 groups *objp; 194 { 195 if (!xdr_pointer(xdrs, (char **)objp, sizeof(struct groupnode), xdr_groupnode)) { 196 return (FALSE); 197 } 198 return (TRUE); 199 } 200 201 202 203 204 bool_t 205 xdr_groupnode(xdrs, objp) 206 XDR *xdrs; 207 groupnode *objp; 208 { 209 if (!xdr_name(xdrs, &objp->gr_name)) { 210 return (FALSE); 211 } 212 if (!xdr_groups(xdrs, &objp->gr_next)) { 213 return (FALSE); 214 } 215 return (TRUE); 216 } 217 218 219 220 221 bool_t 222 xdr_exports(xdrs, objp) 223 XDR *xdrs; 224 exports *objp; 225 { 226 if (!xdr_pointer(xdrs, (char **)objp, sizeof(struct exportnode), xdr_exportnode)) { 227 return (FALSE); 228 } 229 return (TRUE); 230 } 231 232 233 234 235 bool_t 236 xdr_exportnode(xdrs, objp) 237 XDR *xdrs; 238 exportnode *objp; 239 { 240 if (!xdr_dirpath(xdrs, &objp->ex_dir)) { 241 return (FALSE); 242 } 243 if (!xdr_groups(xdrs, &objp->ex_groups)) { 244 return (FALSE); 245 } 246 if (!xdr_exports(xdrs, &objp->ex_next)) { 247 return (FALSE); 248 } 249 return (TRUE); 250 } 251 252 253