1 /*- 2 * Copyright (c) 2010, Oracle America, Inc. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following 12 * disclaimer in the documentation and/or other materials 13 * provided with the distribution. 14 * * Neither the name of the "Oracle America, Inc." nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 23 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 25 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Protocol description for the mount program 34 */ 35 36 #ifndef RPC_HDR 37 %#ifndef lint 38 %/*static char sccsid[] = "from: @(#)mount.x 1.2 87/09/18 Copyr 1987 Sun Micro";*/ 39 %/*static char sccsid[] = "from: @(#)mount.x 2.1 88/08/01 4.0 RPCSRC";*/ 40 %#endif /* not lint */ 41 %#include <sys/cdefs.h> 42 %__FBSDID("$FreeBSD$"); 43 #endif 44 45 const MNTPATHLEN = 1024; /* maximum bytes in a pathname argument */ 46 const MNTNAMLEN = 255; /* maximum bytes in a name argument */ 47 const FHSIZE = 32; /* size in bytes of a file handle */ 48 #ifdef WANT_NFS3 49 const FHSIZE3 = 64; /* size in bytes of a file handle (v3) */ 50 #endif 51 52 /* 53 * The fhandle is the file handle that the server passes to the client. 54 * All file operations are done using the file handles to refer to a file 55 * or a directory. The file handle can contain whatever information the 56 * server needs to distinguish an individual file. 57 */ 58 typedef opaque fhandle[FHSIZE]; 59 #ifdef WANT_NFS3 60 typedef opaque fhandle3<FHSIZE3>; 61 #endif 62 63 /* 64 * If a status of zero is returned, the call completed successfully, and 65 * a file handle for the directory follows. A non-zero status indicates 66 * some sort of error. The status corresponds with UNIX error numbers. 67 */ 68 union fhstatus switch (unsigned fhs_status) { 69 case 0: 70 fhandle fhs_fhandle; 71 default: 72 void; 73 }; 74 75 #ifdef WANT_NFS3 76 /* 77 * Status codes returned by the version 3 mount call. 78 */ 79 enum mountstat3 { 80 MNT3_OK = 0, /* no error */ 81 MNT3ERR_PERM = 1, /* Not owner */ 82 MNT3ERR_NOENT = 2, /* No such file or directory */ 83 MNT3ERR_IO = 5, /* I/O error */ 84 MNT3ERR_ACCES = 13, /* Permission denied */ 85 MNT3ERR_NOTDIR = 20, /* Not a directory */ 86 MNT3ERR_INVAL = 22, /* Invalid argument */ 87 MNT3ERR_NAMETOOLONG = 63, /* Filename too long */ 88 MNT3ERR_NOTSUPP = 10004, /* Operation not supported */ 89 MNT3ERR_SERVERFAULT = 10006 /* A failure on the server */ 90 }; 91 92 struct mountres3_ok { 93 fhandle3 fhandle; 94 int auth_flavors<>; 95 }; 96 97 union mountres3 switch (mountstat3 fhs_status) { 98 case 0: 99 mountres3_ok mountinfo; 100 default: 101 void; 102 }; 103 #endif 104 105 /* 106 * The type dirpath is the pathname of a directory 107 */ 108 typedef string dirpath<MNTPATHLEN>; 109 110 /* 111 * The type name is used for arbitrary names (hostnames, groupnames) 112 */ 113 typedef string name<MNTNAMLEN>; 114 115 /* 116 * A list of who has what mounted 117 */ 118 typedef struct mountbody *mountlist; 119 struct mountbody { 120 name ml_hostname; 121 dirpath ml_directory; 122 mountlist ml_next; 123 }; 124 125 /* 126 * A list of netgroups 127 */ 128 typedef struct groupnode *groups; 129 struct groupnode { 130 name gr_name; 131 groups gr_next; 132 }; 133 134 /* 135 * A list of what is exported and to whom 136 */ 137 typedef struct exportnode *exports; 138 struct exportnode { 139 dirpath ex_dir; 140 groups ex_groups; 141 exports ex_next; 142 }; 143 144 program MOUNTPROG { 145 /* 146 * Version one of the mount protocol communicates with version two 147 * of the NFS protocol. Version three communicates with 148 * version three of the NFS protocol. The only connecting 149 * point is the fhandle structure, which is the same for both 150 * protocols. 151 */ 152 version MOUNTVERS { 153 /* 154 * Does no work. It is made available in all RPC services 155 * to allow server response testing and timing 156 */ 157 void 158 MOUNTPROC_NULL(void) = 0; 159 160 /* 161 * If fhs_status is 0, then fhs_fhandle contains the 162 * file handle for the directory. This file handle may 163 * be used in the NFS protocol. This procedure also adds 164 * a new entry to the mount list for this client mounting 165 * the directory. 166 * Unix authentication required. 167 */ 168 fhstatus 169 MOUNTPROC_MNT(dirpath) = 1; 170 171 /* 172 * Returns the list of remotely mounted filesystems. The 173 * mountlist contains one entry for each hostname and 174 * directory pair. 175 */ 176 mountlist 177 MOUNTPROC_DUMP(void) = 2; 178 179 /* 180 * Removes the mount list entry for the directory 181 * Unix authentication required. 182 */ 183 void 184 MOUNTPROC_UMNT(dirpath) = 3; 185 186 /* 187 * Removes all of the mount list entries for this client 188 * Unix authentication required. 189 */ 190 void 191 MOUNTPROC_UMNTALL(void) = 4; 192 193 /* 194 * Returns a list of all the exported filesystems, and which 195 * machines are allowed to import it. 196 */ 197 exports 198 MOUNTPROC_EXPORT(void) = 5; 199 200 /* 201 * Identical to MOUNTPROC_EXPORT above 202 */ 203 exports 204 MOUNTPROC_EXPORTALL(void) = 6; 205 } = 1; 206 #ifdef WANT_NFS3 207 version MOUNTVERS3 { 208 /* 209 * Does no work. It is made available in all RPC services 210 * to allow server response testing and timing 211 */ 212 void 213 MOUNTPROC_NULL(void) = 0; 214 215 /* 216 * If mountres3.fhs_status is MNT3_OK, then 217 * mountres3.mountinfo contains the file handle for 218 * the directory and a list of acceptable 219 * authentication flavors. This file handle may only 220 * be used in the NFS version 3 protocol. This 221 * procedure also results in the server adding a new 222 * entry to its mount list recording that this client 223 * has mounted the directory. AUTH_UNIX authentication 224 * or better is required. 225 */ 226 mountres3 227 MOUNTPROC_MNT(dirpath) = 1; 228 229 /* 230 * Returns the list of remotely mounted filesystems. The 231 * mountlist contains one entry for each hostname and 232 * directory pair. 233 */ 234 mountlist 235 MOUNTPROC_DUMP(void) = 2; 236 237 /* 238 * Removes the mount list entry for the directory 239 * Unix authentication required. 240 */ 241 void 242 MOUNTPROC_UMNT(dirpath) = 3; 243 244 /* 245 * Removes all of the mount list entries for this client 246 * Unix authentication required. 247 */ 248 void 249 MOUNTPROC_UMNTALL(void) = 4; 250 251 /* 252 * Returns a list of all the exported filesystems, and which 253 * machines are allowed to import it. 254 */ 255 exports 256 MOUNTPROC_EXPORT(void) = 5; 257 } = 3; 258 #endif 259 } = 100005; 260