1 /* $NetBSD: nfs_prot_svc.c,v 1.1.1.2 2009/03/20 20:26:55 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1997-2009 Erez Zadok 5 * Copyright (c) 1989 Jan-Simon Pendry 6 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine 7 * Copyright (c) 1989 The Regents of the University of California. 8 * All rights reserved. 9 * 10 * This code is derived from software contributed to Berkeley by 11 * Jan-Simon Pendry at Imperial College, London. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgment: 23 * This product includes software developed by the University of 24 * California, Berkeley and its contributors. 25 * 4. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * 42 * File: am-utils/hlfsd/nfs_prot_svc.c 43 * 44 */ 45 46 #ifdef HAVE_CONFIG_H 47 # include <config.h> 48 #endif /* HAVE_CONFIG_H */ 49 #include <am_defs.h> 50 #include <hlfsd.h> 51 52 /* EXTERNAL FUNCTIONS */ 53 extern voidp nfsproc_null_2_svc(voidp, struct svc_req *); 54 extern nfsattrstat *nfsproc_getattr_2_svc(am_nfs_fh *, struct svc_req *); 55 extern nfsattrstat *nfsproc_setattr_2_svc(nfssattrargs *, struct svc_req *); 56 extern voidp nfsproc_root_2_svc(voidp, struct svc_req *); 57 extern nfsdiropres *nfsproc_lookup_2_svc(nfsdiropargs *, struct svc_req *); 58 extern nfsreadlinkres *nfsproc_readlink_2_svc(am_nfs_fh *, struct svc_req *); 59 extern nfsreadres *nfsproc_read_2_svc(nfsreadargs *, struct svc_req *); 60 extern voidp nfsproc_writecache_2_svc(voidp, struct svc_req *); 61 extern nfsattrstat *nfsproc_write_2_svc(nfswriteargs *, struct svc_req *); 62 extern nfsdiropres *nfsproc_create_2_svc(nfscreateargs *, struct svc_req *); 63 extern nfsstat *nfsproc_remove_2_svc(nfsdiropargs *, struct svc_req *); 64 extern nfsstat *nfsproc_rename_2_svc(nfsrenameargs *, struct svc_req *); 65 extern nfsstat *nfsproc_link_2_svc(nfslinkargs *, struct svc_req *); 66 extern nfsstat *nfsproc_symlink_2_svc(nfssymlinkargs *, struct svc_req *); 67 extern nfsdiropres *nfsproc_mkdir_2_svc(nfscreateargs *, struct svc_req *); 68 extern nfsstat *nfsproc_rmdir_2_svc(nfsdiropargs *, struct svc_req *); 69 extern nfsreaddirres *nfsproc_readdir_2_svc(nfsreaddirargs *, struct svc_req *); 70 extern nfsstatfsres *nfsproc_statfs_2_svc(am_nfs_fh *, struct svc_req *); 71 72 /* GLOBALS */ 73 SVCXPRT *nfs_program_2_transp; 74 75 /* TYPEDEFS */ 76 typedef char *(*nfssvcproc_t)(voidp, struct svc_req *); 77 78 79 void 80 nfs_program_2(struct svc_req *rqstp, SVCXPRT *transp) 81 { 82 union { 83 am_nfs_fh nfsproc_getattr_2_arg; 84 nfssattrargs nfsproc_setattr_2_arg; 85 nfsdiropargs nfsproc_lookup_2_arg; 86 am_nfs_fh nfsproc_readlink_2_arg; 87 nfsreadargs nfsproc_read_2_arg; 88 nfswriteargs nfsproc_write_2_arg; 89 nfscreateargs nfsproc_create_2_arg; 90 nfsdiropargs nfsproc_remove_2_arg; 91 nfsrenameargs nfsproc_rename_2_arg; 92 nfslinkargs nfsproc_link_2_arg; 93 nfssymlinkargs nfsproc_symlink_2_arg; 94 nfscreateargs nfsproc_mkdir_2_arg; 95 nfsdiropargs nfsproc_rmdir_2_arg; 96 nfsreaddirargs nfsproc_readdir_2_arg; 97 am_nfs_fh nfsproc_statfs_2_arg; 98 } argument; 99 char *result; 100 xdrproc_t xdr_argument, xdr_result; 101 nfssvcproc_t local; 102 103 nfs_program_2_transp = NULL; 104 105 switch (rqstp->rq_proc) { 106 107 case NFSPROC_NULL: 108 xdr_argument = (xdrproc_t) xdr_void; 109 xdr_result = (xdrproc_t) xdr_void; 110 local = (nfssvcproc_t) nfsproc_null_2_svc; 111 break; 112 113 case NFSPROC_GETATTR: 114 xdr_argument = (xdrproc_t) xdr_nfs_fh; 115 xdr_result = (xdrproc_t) xdr_attrstat; 116 local = (nfssvcproc_t) nfsproc_getattr_2_svc; 117 break; 118 119 case NFSPROC_SETATTR: 120 xdr_argument = (xdrproc_t) xdr_sattrargs; 121 xdr_result = (xdrproc_t) xdr_attrstat; 122 local = (nfssvcproc_t) nfsproc_setattr_2_svc; 123 break; 124 125 case NFSPROC_ROOT: 126 xdr_argument = (xdrproc_t) xdr_void; 127 xdr_result = (xdrproc_t) xdr_void; 128 local = (nfssvcproc_t) nfsproc_root_2_svc; 129 break; 130 131 case NFSPROC_LOOKUP: 132 xdr_argument = (xdrproc_t) xdr_diropargs; 133 xdr_result = (xdrproc_t) xdr_diropres; 134 local = (nfssvcproc_t) nfsproc_lookup_2_svc; 135 /* 136 * Cheap way to pass transp down to afs_lookuppn so it can 137 * be stored in the am_node structure and later used for 138 * quick_reply(). 139 */ 140 nfs_program_2_transp = transp; 141 break; 142 143 case NFSPROC_READLINK: 144 xdr_argument = (xdrproc_t) xdr_nfs_fh; 145 xdr_result = (xdrproc_t) xdr_readlinkres; 146 local = (nfssvcproc_t) nfsproc_readlink_2_svc; 147 break; 148 149 case NFSPROC_READ: 150 xdr_argument = (xdrproc_t) xdr_readargs; 151 xdr_result = (xdrproc_t) xdr_readres; 152 local = (nfssvcproc_t) nfsproc_read_2_svc; 153 break; 154 155 case NFSPROC_WRITECACHE: 156 xdr_argument = (xdrproc_t) xdr_void; 157 xdr_result = (xdrproc_t) xdr_void; 158 local = (nfssvcproc_t) nfsproc_writecache_2_svc; 159 break; 160 161 case NFSPROC_WRITE: 162 xdr_argument = (xdrproc_t) xdr_writeargs; 163 xdr_result = (xdrproc_t) xdr_attrstat; 164 local = (nfssvcproc_t) nfsproc_write_2_svc; 165 break; 166 167 case NFSPROC_CREATE: 168 xdr_argument = (xdrproc_t) xdr_createargs; 169 xdr_result = (xdrproc_t) xdr_diropres; 170 local = (nfssvcproc_t) nfsproc_create_2_svc; 171 break; 172 173 case NFSPROC_REMOVE: 174 xdr_argument = (xdrproc_t) xdr_diropargs; 175 xdr_result = (xdrproc_t) xdr_nfsstat; 176 local = (nfssvcproc_t) nfsproc_remove_2_svc; 177 break; 178 179 case NFSPROC_RENAME: 180 xdr_argument = (xdrproc_t) xdr_renameargs; 181 xdr_result = (xdrproc_t) xdr_nfsstat; 182 local = (nfssvcproc_t) nfsproc_rename_2_svc; 183 break; 184 185 case NFSPROC_LINK: 186 xdr_argument = (xdrproc_t) xdr_linkargs; 187 xdr_result = (xdrproc_t) xdr_nfsstat; 188 local = (nfssvcproc_t) nfsproc_link_2_svc; 189 break; 190 191 case NFSPROC_SYMLINK: 192 xdr_argument = (xdrproc_t) xdr_symlinkargs; 193 xdr_result = (xdrproc_t) xdr_nfsstat; 194 local = (nfssvcproc_t) nfsproc_symlink_2_svc; 195 break; 196 197 case NFSPROC_MKDIR: 198 xdr_argument = (xdrproc_t) xdr_createargs; 199 xdr_result = (xdrproc_t) xdr_diropres; 200 local = (nfssvcproc_t) nfsproc_mkdir_2_svc; 201 break; 202 203 case NFSPROC_RMDIR: 204 xdr_argument = (xdrproc_t) xdr_diropargs; 205 xdr_result = (xdrproc_t) xdr_nfsstat; 206 local = (nfssvcproc_t) nfsproc_rmdir_2_svc; 207 break; 208 209 case NFSPROC_READDIR: 210 xdr_argument = (xdrproc_t) xdr_readdirargs; 211 xdr_result = (xdrproc_t) xdr_readdirres; 212 local = (nfssvcproc_t) nfsproc_readdir_2_svc; 213 break; 214 215 case NFSPROC_STATFS: 216 xdr_argument = (xdrproc_t) xdr_nfs_fh; 217 xdr_result = (xdrproc_t) xdr_statfsres; 218 local = (nfssvcproc_t) nfsproc_statfs_2_svc; 219 break; 220 221 default: 222 svcerr_noproc(transp); 223 return; 224 } 225 226 memset((char *) &argument, 0, sizeof(argument)); 227 if (!svc_getargs(transp, 228 (XDRPROC_T_TYPE) xdr_argument, 229 (SVC_IN_ARG_TYPE) &argument)) { 230 plog(XLOG_ERROR, 231 "NFS xdr decode failed for %d %d %d", 232 (int) rqstp->rq_prog, (int) rqstp->rq_vers, (int) rqstp->rq_proc); 233 svcerr_decode(transp); 234 return; 235 } 236 result = (*local) (&argument, rqstp); 237 238 nfs_program_2_transp = NULL; 239 240 if (result != NULL && !svc_sendreply(transp, 241 (XDRPROC_T_TYPE) xdr_result, 242 result)) { 243 svcerr_systemerr(transp); 244 } 245 if (!svc_freeargs(transp, 246 (XDRPROC_T_TYPE) xdr_argument, 247 (SVC_IN_ARG_TYPE) & argument)) { 248 plog(XLOG_FATAL, "unable to free rpc arguments in nfs_program_2"); 249 going_down(1); 250 } 251 } 252