source3/modules/vfs_catia.c

   1 /*
   2  * Catia VFS module
   3  *
   4  * Implement a fixed mapping of forbidden NT characters in filenames that are
   5  * used a lot by the CAD package Catia.
   6  *
   7  * Yes, this a BAD BAD UGLY INCOMPLETE hack, but it helps quite some people
   8  * out there. Catia V4 on AIX uses characters like "<*$ a *lot*, all forbidden
   9  * under Windows...
  10  *
  11  * Copyright (C) Volker Lendecke, 2005
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 3 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  25  */
  26
  27
  28 #include "includes.h"
  29
  30 static void catia_string_replace(char *s, unsigned char oldc, unsigned
  31                                  char newc)
  32 {
  33         static smb_ucs2_t tmpbuf[sizeof(pstring)];
  34         smb_ucs2_t *ptr = tmpbuf;
  35         smb_ucs2_t old = oldc;
  36
  37         push_ucs2(NULL, tmpbuf, s, sizeof(tmpbuf), STR_TERMINATE);
  38
  39         for (;*ptr;ptr++)
  40                 if (*ptr==old) *ptr=newc;
  41
  42         pull_ucs2(NULL, s, tmpbuf, sizeof(pstring), sizeof(tmpbuf), STR_TERMINATE);
  43 }
  44
  45 static void from_unix(char *s)
  46 {
  47         catia_string_replace(s, '\x22', '\xa8');
  48         catia_string_replace(s, '\x2a', '\xa4');
  49         catia_string_replace(s, '\x2f', '\xf8');
  50         catia_string_replace(s, '\x3a', '\xf7');
  51         catia_string_replace(s, '\x3c', '\xab');
  52         catia_string_replace(s, '\x3e', '\xbb');
  53         catia_string_replace(s, '\x3f', '\xbf');
  54         catia_string_replace(s, '\x5c', '\xff');
  55         catia_string_replace(s, '\x7c', '\xa6');
  56         catia_string_replace(s, ' ', '\xb1');
  57 }
  58
  59 static void to_unix(char *s)
  60 {
  61         catia_string_replace(s, '\xa8', '\x22');
  62         catia_string_replace(s, '\xa4', '\x2a');
  63         catia_string_replace(s, '\xf8', '\x2f');
  64         catia_string_replace(s, '\xf7', '\x3a');
  65         catia_string_replace(s, '\xab', '\x3c');
  66         catia_string_replace(s, '\xbb', '\x3e');
  67         catia_string_replace(s, '\xbf', '\x3f');
  68         catia_string_replace(s, '\xff', '\x5c');
  69         catia_string_replace(s, '\xa6', '\x7c');
  70         catia_string_replace(s, '\xb1', ' ');
  71 }
  72
  73 static SMB_STRUCT_DIR *catia_opendir(vfs_handle_struct *handle,
  74                           const char *fname, const char *mask, uint32 attr)
  75 {
  76         pstring name;
  77         pstrcpy(name, fname);
  78         to_unix(name);
  79
  80         return SMB_VFS_NEXT_OPENDIR(handle, name, mask, attr);
  81 }
  82
  83 static SMB_STRUCT_DIRENT *catia_readdir(vfs_handle_struct *handle,
  84                                         SMB_STRUCT_DIR *dirp)
  85 {
  86         SMB_STRUCT_DIRENT *result = SMB_VFS_NEXT_READDIR(handle, dirp);
  87
  88         if (result == NULL)
  89                 return result;
  90
  91         from_unix(result->d_name);
  92         return result;
  93 }
  94
  95 static int catia_open(vfs_handle_struct *handle,
  96                       const char *fname, files_struct *fsp, int flags, mode_t mode)
  97 {
  98         pstring name;
  99
 100         pstrcpy(name, fname);
 101         to_unix(name);
 102
 103         return SMB_VFS_NEXT_OPEN(handle, name, fsp, flags, mode);
 104 }
 105
 106 static int catia_rename(vfs_handle_struct *handle,
 107                         const char *oldname, const char *newname)
 108 {
 109         pstring oname, nname;
 110
 111         pstrcpy(oname, oldname);
 112         to_unix(oname);
 113         pstrcpy(nname, newname);
 114         to_unix(nname);
 115
 116         DEBUG(10, ("converted old name: %s\n", oname));
 117         DEBUG(10, ("converted new name: %s\n", nname));
 118
 119         return SMB_VFS_NEXT_RENAME(handle, oname, nname);
 120 }
 121
 122 static int catia_stat(vfs_handle_struct *handle,
 123                       const char *fname, SMB_STRUCT_STAT *sbuf)
 124 {
 125         pstring name;
 126         pstrcpy(name, fname);
 127         to_unix(name);
 128
 129         return SMB_VFS_NEXT_STAT(handle, name, sbuf);
 130 }
 131
 132 static int catia_lstat(vfs_handle_struct *handle,
 133                        const char *path, SMB_STRUCT_STAT *sbuf)
 134 {
 135         pstring name;
 136         pstrcpy(name, path);
 137         to_unix(name);
 138
 139         return SMB_VFS_NEXT_LSTAT(handle, name, sbuf);
 140 }
 141
 142 static int catia_unlink(vfs_handle_struct *handle, const char *path)
 143 {
 144         pstring name;
 145         pstrcpy(name, path);
 146         to_unix(name);
 147
 148         return SMB_VFS_NEXT_UNLINK(handle, name);
 149 }
 150
 151 static int catia_chmod(vfs_handle_struct *handle,
 152                        const char *path, mode_t mode)
 153 {
 154         pstring name;
 155         pstrcpy(name, path);
 156         to_unix(name);
 157
 158         return SMB_VFS_NEXT_CHMOD(handle, name, mode);
 159 }
 160
 161 static int catia_chown(vfs_handle_struct *handle,
 162                        const char *path, uid_t uid, gid_t gid)
 163 {
 164         pstring name;
 165         pstrcpy(name, path);
 166         to_unix(name);
 167
 168         return SMB_VFS_NEXT_CHOWN(handle, name, uid, gid);
 169 }
 170
 171 static int catia_lchown(vfs_handle_struct *handle,
 172                        const char *path, uid_t uid, gid_t gid)
 173 {
 174         pstring name;
 175         pstrcpy(name, path);
 176         to_unix(name);
 177
 178         return SMB_VFS_NEXT_LCHOWN(handle, name, uid, gid);
 179 }
 180
 181 static int catia_chdir(vfs_handle_struct *handle,
 182                        const char *path)
 183 {
 184         pstring name;
 185         pstrcpy(name, path);
 186         to_unix(name);
 187
 188         return SMB_VFS_NEXT_CHDIR(handle, name);
 189 }
 190
 191 static char *catia_getwd(vfs_handle_struct *handle, char *buf)
 192 {
 193         return SMB_VFS_NEXT_GETWD(handle, buf);
 194 }
 195
 196 static int catia_ntimes(vfs_handle_struct *handle,
 197                        const char *path, const struct timespec ts[2])
 198 {
 199         return SMB_VFS_NEXT_NTIMES(handle, path, ts);
 200 }
 201
 202 static bool catia_symlink(vfs_handle_struct *handle,
 203                           const char *oldpath, const char *newpath)
 204 {
 205         return SMB_VFS_NEXT_SYMLINK(handle, oldpath, newpath);
 206 }
 207
 208 static bool catia_readlink(vfs_handle_struct *handle,
 209                            const char *path, char *buf, size_t bufsiz)
 210 {
 211         return SMB_VFS_NEXT_READLINK(handle, path, buf, bufsiz);
 212 }
 213
 214 static int catia_link(vfs_handle_struct *handle,
 215                       const char *oldpath, const char *newpath)
 216 {
 217         return SMB_VFS_NEXT_LINK(handle, oldpath, newpath);
 218 }
 219
 220 static int catia_mknod(vfs_handle_struct *handle,
 221                        const char *path, mode_t mode, SMB_DEV_T dev)
 222 {
 223         return SMB_VFS_NEXT_MKNOD(handle, path, mode, dev);
 224 }
 225
 226 static char *catia_realpath(vfs_handle_struct *handle,
 227                             const char *path, char *resolved_path)
 228 {
 229         return SMB_VFS_NEXT_REALPATH(handle, path, resolved_path);
 230 }
 231
 232 static size_t catia_get_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 233                                const char *name, uint32 security_info,
 234                                struct  security_descriptor **ppdesc)
 235 {
 236         return SMB_VFS_NEXT_GET_NT_ACL(handle, fsp, name, security_info,
 237                                        ppdesc);
 238 }
 239
 240 static NTSTATUS catia_set_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
 241                              const char *name, uint32 security_info_sent,
 242                              struct security_descriptor *psd)
 243 {
 244         return SMB_VFS_NEXT_SET_NT_ACL(handle, fsp, name, security_info_sent,
 245                                        psd);
 246 }
 247
 248 static int catia_chmod_acl(vfs_handle_struct *handle,
 249                            const char *name, mode_t mode)
 250 {
 251         /* If the underlying VFS doesn't have ACL support... */
 252         if (!handle->vfs_next.ops.chmod_acl) {
 253                 errno = ENOSYS;
 254                 return -1;
 255         }
 256         return SMB_VFS_NEXT_CHMOD_ACL(handle, name, mode);
 257 }
 258
 259 /* VFS operations structure */
 260
 261 static vfs_op_tuple catia_op_tuples[] = {
 262
 263         /* Directory operations */
 264
 265         {SMB_VFS_OP(catia_opendir), SMB_VFS_OP_OPENDIR,
 266 SMB_VFS_LAYER_TRANSPARENT},
 267         {SMB_VFS_OP(catia_readdir), SMB_VFS_OP_READDIR,
 268 SMB_VFS_LAYER_TRANSPARENT},
 269
 270         /* File operations */
 271
 272         {SMB_VFS_OP(catia_open), SMB_VFS_OP_OPEN,
 273 SMB_VFS_LAYER_TRANSPARENT},
 274         {SMB_VFS_OP(catia_rename),                      SMB_VFS_OP_RENAME,
 275         SMB_VFS_LAYER_TRANSPARENT},
 276         {SMB_VFS_OP(catia_stat), SMB_VFS_OP_STAT,
 277 SMB_VFS_LAYER_TRANSPARENT},
 278         {SMB_VFS_OP(catia_lstat),                       SMB_VFS_OP_LSTAT,
 279 SMB_VFS_LAYER_TRANSPARENT},
 280         {SMB_VFS_OP(catia_unlink),                      SMB_VFS_OP_UNLINK,
 281         SMB_VFS_LAYER_TRANSPARENT},
 282         {SMB_VFS_OP(catia_chmod),                       SMB_VFS_OP_CHMOD,
 283 SMB_VFS_LAYER_TRANSPARENT},
 284         {SMB_VFS_OP(catia_chown),                       SMB_VFS_OP_CHOWN,
 285 SMB_VFS_LAYER_TRANSPARENT},
 286         {SMB_VFS_OP(catia_lchown),                      SMB_VFS_OP_LCHOWN,
 287 SMB_VFS_LAYER_TRANSPARENT},
 288         {SMB_VFS_OP(catia_chdir),                       SMB_VFS_OP_CHDIR,
 289 SMB_VFS_LAYER_TRANSPARENT},
 290         {SMB_VFS_OP(catia_getwd),                       SMB_VFS_OP_GETWD,
 291 SMB_VFS_LAYER_TRANSPARENT},
 292         {SMB_VFS_OP(catia_ntimes),                       SMB_VFS_OP_NTIMES,
 293 SMB_VFS_LAYER_TRANSPARENT},
 294         {SMB_VFS_OP(catia_symlink), SMB_VFS_OP_SYMLINK,
 295 SMB_VFS_LAYER_TRANSPARENT},
 296         {SMB_VFS_OP(catia_readlink), SMB_VFS_OP_READLINK,
 297 SMB_VFS_LAYER_TRANSPARENT},
 298         {SMB_VFS_OP(catia_link), SMB_VFS_OP_LINK,
 299 SMB_VFS_LAYER_TRANSPARENT},
 300         {SMB_VFS_OP(catia_mknod),                       SMB_VFS_OP_MKNOD,
 301 SMB_VFS_LAYER_TRANSPARENT},
 302         {SMB_VFS_OP(catia_realpath), SMB_VFS_OP_REALPATH,
 303 SMB_VFS_LAYER_TRANSPARENT},
 304
 305         /* NT File ACL operations */
 306
 307         {SMB_VFS_OP(catia_get_nt_acl), SMB_VFS_OP_GET_NT_ACL,
 308 SMB_VFS_LAYER_TRANSPARENT},
 309         {SMB_VFS_OP(catia_set_nt_acl), SMB_VFS_OP_SET_NT_ACL,
 310 SMB_VFS_LAYER_TRANSPARENT},
 311
 312         /* POSIX ACL operations */
 313
 314         {SMB_VFS_OP(catia_chmod_acl), SMB_VFS_OP_CHMOD_ACL,
 315 SMB_VFS_LAYER_TRANSPARENT},
 316
 317
 318         {NULL,                                          SMB_VFS_OP_NOOP,
 319 SMB_VFS_LAYER_NOOP}
 320 };
 321
 322 NTSTATUS vfs_catia_init(void);
 323 NTSTATUS vfs_catia_init(void)
 324 {
 325         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "catia",
 326 catia_op_tuples);
 327 }