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nfs-ganesha 1.4
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00001 /* 00002 * vim:expandtab:shiftwidth=8:tabstop=8: 00003 * 00004 * Copyright CEA/DAM/DIF (2008) 00005 * contributeur : Philippe DENIEL philippe.deniel@cea.fr 00006 * Thomas LEIBOVICI thomas.leibovici@cea.fr 00007 * 00008 * 00009 * This program is free software; you can redistribute it and/or 00010 * modify it under the terms of the GNU Lesser General Public 00011 * License as published by the Free Software Foundation; either 00012 * version 3 of the License, or (at your option) any later version. 00013 * 00014 * This program is distributed in the hope that it will be useful, 00015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00017 * Lesser General Public License for more details. 00018 * 00019 * You should have received a copy of the GNU Lesser General Public 00020 * License along with this library; if not, write to the Free Software 00021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00022 * 00023 * --------------------------------------- 00024 */ 00025 00035 #include "fsal.h" 00036 #include <sys/stat.h> 00037 #include "FSAL/common_functions.h" 00038 00039 /* defined the set of attributes supported with POSIX */ 00040 #define VFS_SUPPORTED_ATTRIBUTES ( \ 00041 FSAL_ATTR_SUPPATTR | FSAL_ATTR_TYPE | FSAL_ATTR_SIZE | \ 00042 FSAL_ATTR_FSID | FSAL_ATTR_FILEID | \ 00043 FSAL_ATTR_MODE | FSAL_ATTR_NUMLINKS | FSAL_ATTR_OWNER | \ 00044 FSAL_ATTR_GROUP | FSAL_ATTR_ATIME | FSAL_ATTR_RAWDEV | \ 00045 FSAL_ATTR_CTIME | FSAL_ATTR_MTIME | FSAL_ATTR_SPACEUSED | \ 00046 FSAL_ATTR_CHGTIME ) 00047 00048 /* the following variables must not be defined in fsal_internal.c */ 00049 #ifndef FSAL_INTERNAL_C 00050 00051 /* static filesystem info. 00052 * read access only. 00053 */ 00054 extern fsal_staticfsinfo_t global_fs_info; 00055 00056 /* export_context_t is not given to every function, but 00057 * most functions need to use the open-by-handle funcionality. 00058 */ 00059 extern char open_by_handle_path[MAXPATHLEN]; 00060 extern int open_by_handle_fd; 00061 00062 #endif 00063 00067 fsal_status_t fsal_internal_init_global(fsal_init_info_t * fsal_info, 00068 fs_common_initinfo_t * fs_common_info, 00069 fs_specific_initinfo_t * fs_specific_info); 00070 00074 void fsal_increment_nbcall(int function_index, fsal_status_t status); 00075 00079 void fsal_internal_getstats(fsal_statistics_t * output_stats); 00080 00084 void TakeTokenFSCall(); 00085 void ReleaseTokenFSCall(); 00086 00090 fsal_status_t fsal_internal_handle2fd(fsal_op_context_t * p_context, 00091 fsal_handle_t * phandle, int *pfd, int oflags); 00092 00093 fsal_status_t fsal_internal_handle2fd_at(int dirfd, 00094 fsal_handle_t * phandle, int *pfd, int oflags); 00095 00096 fsal_status_t fsal_internal_Path2Handle(fsal_op_context_t * p_context, /* IN */ 00097 fsal_path_t * p_fsalpath, /* IN */ 00098 fsal_handle_t * p_handle /* OUT */ ) ; 00099 00103 fsal_status_t fsal_readlink_by_handle(fsal_op_context_t * p_context, 00104 fsal_handle_t * p_handle, char *__buf, int maxlen); 00105 00109 fsal_status_t fsal_internal_get_handle_at(int dfd, const char *name, /* IN */ 00110 fsal_handle_t * p_handle /* OUT */ ); 00111 00112 fsal_status_t fsal_internal_fd2handle( fsal_op_context_t * p_context, 00113 int fd, /* IN */ 00114 fsal_handle_t * p_handle /* OUT */ 00115 ); 00116 00117 fsal_status_t fsal_internal_link_at(int srcfd, int dfd, char *name); 00118 00119 fsal_status_t fsal_stat_by_handle(fsal_op_context_t * p_context, 00120 fsal_handle_t * p_handle, struct stat64 *buf); 00121 00122 00123 /* All the call to FSAL to be wrapped */ 00124 fsal_status_t VFSFSAL_access(fsal_handle_t * p_object_handle, /* IN */ 00125 fsal_op_context_t * p_context, /* IN */ 00126 fsal_accessflags_t access_type, /* IN */ 00127 fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */ ); 00128 00129 fsal_status_t VFSFSAL_getattrs(fsal_handle_t * p_filehandle, /* IN */ 00130 fsal_op_context_t * p_context, /* IN */ 00131 fsal_attrib_list_t * p_object_attributes /* IN/OUT */ ); 00132 00133 fsal_status_t VFSFSAL_getattrs_descriptor(fsal_file_t * p_file_descriptor, /* IN */ 00134 fsal_handle_t * p_filehandle, /* IN */ 00135 fsal_op_context_t * p_context, /* IN */ 00136 fsal_attrib_list_t * p_object_attributes /* IN/OUT */ ); 00137 00138 fsal_status_t VFSFSAL_setattrs(fsal_handle_t * p_filehandle, /* IN */ 00139 fsal_op_context_t * p_context, /* IN */ 00140 fsal_attrib_list_t * p_attrib_set, /* IN */ 00141 fsal_attrib_list_t * 00142 p_object_attributes /* [ IN/OUT ] */ ); 00143 00144 fsal_status_t VFSFSAL_BuildExportContext(fsal_export_context_t * p_export_context, /* OUT */ 00145 fsal_path_t * p_export_path, /* IN */ 00146 char *fs_specific_options /* IN */ ); 00147 00148 fsal_status_t VFSFSAL_create(fsal_handle_t * p_parent_directory_handle, /* IN */ 00149 fsal_name_t * p_filename, /* IN */ 00150 fsal_op_context_t * p_context, /* IN */ 00151 fsal_accessmode_t accessmode, /* IN */ 00152 fsal_handle_t * p_object_handle, /* OUT */ 00153 fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */ ); 00154 00155 fsal_status_t VFSFSAL_mkdir(fsal_handle_t * p_parent_directory_handle, /* IN */ 00156 fsal_name_t * p_dirname, /* IN */ 00157 fsal_op_context_t * p_context, /* IN */ 00158 fsal_accessmode_t accessmode, /* IN */ 00159 fsal_handle_t * p_object_handle, /* OUT */ 00160 fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */ ); 00161 00162 fsal_status_t VFSFSAL_link(fsal_handle_t * p_target_handle, /* IN */ 00163 fsal_handle_t * p_dir_handle, /* IN */ 00164 fsal_name_t * p_link_name, /* IN */ 00165 fsal_op_context_t * p_context, /* IN */ 00166 fsal_attrib_list_t * p_attributes /* [ IN/OUT ] */ ); 00167 00168 fsal_status_t VFSFSAL_mknode(fsal_handle_t * parentdir_handle, /* IN */ 00169 fsal_name_t * p_node_name, /* IN */ 00170 fsal_op_context_t * p_context, /* IN */ 00171 fsal_accessmode_t accessmode, /* IN */ 00172 fsal_nodetype_t nodetype, /* IN */ 00173 fsal_dev_t * dev, /* IN */ 00174 fsal_handle_t * p_object_handle, /* OUT (handle to the created node) */ 00175 fsal_attrib_list_t * node_attributes /* [ IN/OUT ] */ ); 00176 00177 fsal_status_t VFSFSAL_opendir(fsal_handle_t * p_dir_handle, /* IN */ 00178 fsal_op_context_t * p_context, /* IN */ 00179 fsal_dir_t * p_dir_descriptor, /* OUT */ 00180 fsal_attrib_list_t * p_dir_attributes /* [ IN/OUT ] */ ); 00181 00182 fsal_status_t VFSFSAL_readdir(fsal_dir_t * p_dir_descriptor, /* IN */ 00183 fsal_cookie_t start_position, /* IN */ 00184 fsal_attrib_mask_t get_attr_mask, /* IN */ 00185 fsal_mdsize_t buffersize, /* IN */ 00186 fsal_dirent_t * p_pdirent, /* OUT */ 00187 fsal_cookie_t * p_end_position, /* OUT */ 00188 fsal_count_t * p_nb_entries, /* OUT */ 00189 fsal_boolean_t * p_end_of_dir /* OUT */ ); 00190 00191 fsal_status_t VFSFSAL_closedir(fsal_dir_t * p_dir_descriptor /* IN */ ); 00192 00193 fsal_status_t VFSFSAL_open_by_name(fsal_handle_t * dirhandle, /* IN */ 00194 fsal_name_t * filename, /* IN */ 00195 fsal_op_context_t * p_context, /* IN */ 00196 fsal_openflags_t openflags, /* IN */ 00197 fsal_file_t * file_descriptor, /* OUT */ 00198 fsal_attrib_list_t * 00199 file_attributes /* [ IN/OUT ] */ ); 00200 00201 fsal_status_t VFSFSAL_open(fsal_handle_t * p_filehandle, /* IN */ 00202 fsal_op_context_t * p_context, /* IN */ 00203 fsal_openflags_t openflags, /* IN */ 00204 fsal_file_t * p_file_descriptor, /* OUT */ 00205 fsal_attrib_list_t * p_file_attributes /* [ IN/OUT ] */ ); 00206 00207 fsal_status_t VFSFSAL_read(fsal_file_t * p_file_descriptor, /* IN */ 00208 fsal_seek_t * p_seek_descriptor, /* [IN] */ 00209 fsal_size_t buffer_size, /* IN */ 00210 caddr_t buffer, /* OUT */ 00211 fsal_size_t * p_read_amount, /* OUT */ 00212 fsal_boolean_t * p_end_of_file /* OUT */ ); 00213 00214 fsal_status_t VFSFSAL_write(fsal_file_t * p_file_descriptor, /* IN */ 00215 fsal_op_context_t * p_context, /* IN */ 00216 fsal_seek_t * p_seek_descriptor, /* IN */ 00217 fsal_size_t buffer_size, /* IN */ 00218 caddr_t buffer, /* IN */ 00219 fsal_size_t * p_write_amount /* OUT */ ); 00220 00221 fsal_status_t VFSFSAL_close(fsal_file_t * p_file_descriptor /* IN */ ); 00222 00223 fsal_status_t VFSFSAL_dynamic_fsinfo(fsal_handle_t * p_filehandle, /* IN */ 00224 fsal_op_context_t * p_context, /* IN */ 00225 fsal_dynamicfsinfo_t * p_dynamicinfo /* OUT */ ); 00226 00227 fsal_status_t VFSFSAL_Init(fsal_parameter_t * init_info /* IN */ ); 00228 00229 fsal_status_t VFSFSAL_test_access(fsal_op_context_t * p_context, /* IN */ 00230 fsal_accessflags_t access_type, /* IN */ 00231 fsal_attrib_list_t * p_object_attributes /* IN */ ); 00232 00233 fsal_status_t VFSFSAL_lookup(fsal_handle_t * p_parent_directory_handle, /* IN */ 00234 fsal_name_t * p_filename, /* IN */ 00235 fsal_op_context_t * p_context, /* IN */ 00236 fsal_handle_t * p_object_handle, /* OUT */ 00237 fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */ ); 00238 00239 fsal_status_t VFSFSAL_lookupPath(fsal_path_t * p_path, /* IN */ 00240 fsal_op_context_t * p_context, /* IN */ 00241 fsal_handle_t * object_handle, /* OUT */ 00242 fsal_attrib_list_t * 00243 p_object_attributes /* [ IN/OUT ] */ ); 00244 00245 fsal_status_t VFSFSAL_lookupJunction(fsal_handle_t * p_junction_handle, /* IN */ 00246 fsal_op_context_t * p_context, /* IN */ 00247 fsal_handle_t * p_fsoot_handle, /* OUT */ 00248 fsal_attrib_list_t * 00249 p_fsroot_attributes /* [ IN/OUT ] */ ); 00250 00251 fsal_status_t VFSFSAL_lock_op( fsal_file_t * p_file_descriptor, /* IN */ 00252 fsal_handle_t * p_filehandle, /* IN */ 00253 fsal_op_context_t * p_context, /* IN */ 00254 void * p_owner, /* IN */ 00255 fsal_lock_op_t lock_op, /* IN */ 00256 fsal_lock_param_t request_lock, /* IN */ 00257 fsal_lock_param_t * conflicting_lock /* OUT */ ); 00258 00259 fsal_status_t VFSFSAL_rcp(fsal_handle_t * filehandle, /* IN */ 00260 fsal_op_context_t * p_context, /* IN */ 00261 fsal_path_t * p_local_path, /* IN */ 00262 fsal_rcpflag_t transfer_opt /* IN */ ); 00263 00264 fsal_status_t VFSFSAL_rename(fsal_handle_t * p_old_parentdir_handle, /* IN */ 00265 fsal_name_t * p_old_name, /* IN */ 00266 fsal_handle_t * p_new_parentdir_handle, /* IN */ 00267 fsal_name_t * p_new_name, /* IN */ 00268 fsal_op_context_t * p_context, /* IN */ 00269 fsal_attrib_list_t * p_src_dir_attributes, /* [ IN/OUT ] */ 00270 fsal_attrib_list_t * p_tgt_dir_attributes /* [ IN/OUT ] */ ); 00271 00272 void VFSFSAL_get_stats(fsal_statistics_t * stats, /* OUT */ 00273 fsal_boolean_t reset /* IN */ ); 00274 00275 fsal_status_t VFSFSAL_readlink(fsal_handle_t * p_linkhandle, /* IN */ 00276 fsal_op_context_t * p_context, /* IN */ 00277 fsal_path_t * p_link_content, /* OUT */ 00278 fsal_attrib_list_t * p_link_attributes /* [ IN/OUT ] */ ); 00279 00280 fsal_status_t VFSFSAL_symlink(fsal_handle_t * p_parent_directory_handle, /* IN */ 00281 fsal_name_t * p_linkname, /* IN */ 00282 fsal_path_t * p_linkcontent, /* IN */ 00283 fsal_op_context_t * p_context, /* IN */ 00284 fsal_accessmode_t accessmode, /* IN (ignored) */ 00285 fsal_handle_t * p_link_handle, /* OUT */ 00286 fsal_attrib_list_t * p_link_attributes /* [ IN/OUT ] */ ); 00287 00288 int VFSFSAL_handlecmp(fsal_handle_t * handle1, fsal_handle_t * handle2, 00289 fsal_status_t * status); 00290 00291 unsigned int VFSFSAL_Handle_to_HashIndex(fsal_handle_t * p_handle, 00292 unsigned int cookie, 00293 unsigned int alphabet_len, 00294 unsigned int index_size); 00295 00296 unsigned int VFSFSAL_Handle_to_RBTIndex(fsal_handle_t * p_handle, unsigned int cookie); 00297 00298 fsal_status_t VFSFSAL_DigestHandle(fsal_export_context_t * p_expcontext, /* IN */ 00299 fsal_digesttype_t output_type, /* IN */ 00300 fsal_handle_t * p_in_fsal_handle, /* IN */ 00301 struct fsal_handle_desc *fh_desc /* OUT */ ); 00302 00303 fsal_status_t VFSFSAL_ExpandHandle(fsal_export_context_t * p_expcontext, /* IN */ 00304 fsal_digesttype_t in_type, /* IN */ 00305 struct fsal_handle_desc *fh_desc /* IN OUT */ ); 00306 00307 fsal_status_t VFSFSAL_SetDefault_FS_specific_parameter(fsal_parameter_t * out_parameter); 00308 00309 00310 fsal_status_t VFSFSAL_load_FS_specific_parameter_from_conf(config_file_t in_config, 00311 fsal_parameter_t * 00312 out_parameter); 00313 00314 fsal_status_t VFSFSAL_truncate(fsal_handle_t * p_filehandle, /* IN */ 00315 fsal_op_context_t * p_context, /* IN */ 00316 fsal_size_t length, /* IN */ 00317 fsal_file_t * file_descriptor, /* Unused in this FSAL */ 00318 fsal_attrib_list_t * 00319 p_object_attributes /* [ IN/OUT ] */ ); 00320 00321 fsal_status_t VFSFSAL_unlink(fsal_handle_t * p_parent_directory_handle, /* IN */ 00322 fsal_name_t * p_object_name, /* IN */ 00323 fsal_op_context_t * p_context, /* IN */ 00324 fsal_attrib_list_t * 00325 p_parent_directory_attributes /* [IN/OUT ] */ ); 00326 00327 char *VFSFSAL_GetFSName(); 00328 00329 fsal_status_t VFSFSAL_GetXAttrAttrs(fsal_handle_t * p_objecthandle, /* IN */ 00330 fsal_op_context_t * p_context, /* IN */ 00331 unsigned int xattr_id, /* IN */ 00332 fsal_attrib_list_t * p_attrs); 00333 00334 fsal_status_t VFSFSAL_ListXAttrs(fsal_handle_t * p_objecthandle, /* IN */ 00335 unsigned int cookie, /* IN */ 00336 fsal_op_context_t * p_context, /* IN */ 00337 fsal_xattrent_t * xattrs_tab, /* IN/OUT */ 00338 unsigned int xattrs_tabsize, /* IN */ 00339 unsigned int *p_nb_returned, /* OUT */ 00340 int *end_of_list /* OUT */ ); 00341 00342 fsal_status_t VFSFSAL_GetXAttrValueById(fsal_handle_t * p_objecthandle, /* IN */ 00343 unsigned int xattr_id, /* IN */ 00344 fsal_op_context_t * p_context, /* IN */ 00345 caddr_t buffer_addr, /* IN/OUT */ 00346 size_t buffer_size, /* IN */ 00347 size_t * p_output_size /* OUT */ ); 00348 00349 fsal_status_t VFSFSAL_GetXAttrIdByName(fsal_handle_t * p_objecthandle, /* IN */ 00350 const fsal_name_t * xattr_name, /* IN */ 00351 fsal_op_context_t * p_context, /* IN */ 00352 unsigned int *pxattr_id /* OUT */ ); 00353 00354 fsal_status_t VFSFSAL_GetXAttrValueByName(fsal_handle_t * p_objecthandle, /* IN */ 00355 const fsal_name_t * xattr_name, /* IN */ 00356 fsal_op_context_t * p_context, /* IN */ 00357 caddr_t buffer_addr, /* IN/OUT */ 00358 size_t buffer_size, /* IN */ 00359 size_t * p_output_size /* OUT */ ); 00360 00361 fsal_status_t VFSFSAL_SetXAttrValue(fsal_handle_t * p_objecthandle, /* IN */ 00362 const fsal_name_t * xattr_name, /* IN */ 00363 fsal_op_context_t * p_context, /* IN */ 00364 caddr_t buffer_addr, /* IN */ 00365 size_t buffer_size, /* IN */ 00366 int create /* IN */ ); 00367 00368 fsal_status_t VFSFSAL_SetXAttrValueById(fsal_handle_t * p_objecthandle, /* IN */ 00369 unsigned int xattr_id, /* IN */ 00370 fsal_op_context_t * p_context, /* IN */ 00371 caddr_t buffer_addr, /* IN */ 00372 size_t buffer_size /* IN */ ); 00373 00374 fsal_status_t VFSFSAL_RemoveXAttrById(fsal_handle_t * p_objecthandle, /* IN */ 00375 fsal_op_context_t * p_context, /* IN */ 00376 unsigned int xattr_id) /* IN */ ; 00377 00378 int VFSFSAL_GetXattrOffsetSetable( void ) ; 00379 00380 fsal_status_t VFSFSAL_RemoveXAttrByName(fsal_handle_t * p_objecthandle, /* IN */ 00381 fsal_op_context_t * p_context, /* IN */ 00382 const fsal_name_t * xattr_name) /* IN */ ; 00383 00384 unsigned int VFSFSAL_GetFileno(fsal_file_t * pfile); 00385 00386 fsal_status_t VFSFSAL_commit( fsal_file_t * p_file_descriptor, 00387 fsal_off_t offset, 00388 fsal_size_t size ) ;
1.7.3