1/* 2 * CAP VFS module for Samba 3.x Version 0.3 3 * 4 * Copyright (C) Tim Potter, 1999-2000 5 * Copyright (C) Alexander Bokovoy, 2002-2003 6 * Copyright (C) Stefan (metze) Metzmacher, 2003 7 * Copyright (C) TAKAHASHI Motonobu (monyo), 2003 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 22 */ 23 24 25#include "includes.h" 26 27/* cap functions */ 28static char *capencode(char *to, const char *from); 29static char *capdecode(char *to, const char *from); 30 31static SMB_BIG_UINT cap_disk_free(vfs_handle_struct *handle, connection_struct *conn, const char *path, 32 BOOL small_query, SMB_BIG_UINT *bsize, 33 SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize) 34{ 35 pstring cappath; 36 capencode(cappath, path); 37 return SMB_VFS_NEXT_DISK_FREE(handle, conn, cappath, small_query, bsize, 38 dfree, dsize); 39} 40 41static DIR *cap_opendir(vfs_handle_struct *handle, connection_struct *conn, const char *fname) 42{ 43 pstring capname; 44 capencode(capname, fname); 45 return SMB_VFS_NEXT_OPENDIR(handle, conn, capname); 46} 47 48static SMB_STRUCT_DIRENT *cap_readdir(vfs_handle_struct *handle, connection_struct *conn, DIR *dirp) 49{ 50 SMB_STRUCT_DIRENT *result; 51 DEBUG(3,("cap: cap_readdir\n")); 52 result = SMB_VFS_NEXT_READDIR(handle, conn, dirp); 53 if (result) { 54 DEBUG(3,("cap: cap_readdir: %s\n", result->d_name)); 55 capdecode(result->d_name, result->d_name); 56 } 57 return result; 58} 59 60static int cap_mkdir(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode) 61{ 62 pstring cappath; 63 capencode(cappath, path); 64 return SMB_VFS_NEXT_MKDIR(handle, conn, cappath, mode); 65} 66 67static int cap_rmdir(vfs_handle_struct *handle, connection_struct *conn, const char *path) 68{ 69 pstring cappath; 70 capencode(cappath, path); 71 return SMB_VFS_NEXT_RMDIR(handle, conn, cappath); 72} 73 74static int cap_open(vfs_handle_struct *handle, connection_struct *conn, const char *fname, int flags, mode_t mode) 75{ 76 pstring capname; 77 DEBUG(3,("cap: cap_open for %s\n", fname)); 78 capencode(capname, fname); 79 return SMB_VFS_NEXT_OPEN(handle, conn, capname, flags, mode); 80} 81 82static int cap_rename(vfs_handle_struct *handle, connection_struct *conn, const char *old, const char *new) 83{ 84 pstring capold, capnew; 85 capencode(capold, old); 86 capencode(capnew, new); 87 88 return SMB_VFS_NEXT_RENAME(handle, conn, capold, capnew); 89} 90 91static int cap_stat(vfs_handle_struct *handle, connection_struct *conn, const char *fname, SMB_STRUCT_STAT *sbuf) 92{ 93 pstring capname; 94 capencode(capname, fname); 95 return SMB_VFS_NEXT_STAT(handle, conn, capname, sbuf); 96} 97 98static int cap_lstat(vfs_handle_struct *handle, connection_struct *conn, const char *path, SMB_STRUCT_STAT *sbuf) 99{ 100 pstring cappath; 101 capencode(cappath, path); 102 return SMB_VFS_NEXT_LSTAT(handle, conn, cappath, sbuf); 103} 104 105static int cap_unlink(vfs_handle_struct *handle, connection_struct *conn, const char *path) 106{ 107 pstring cappath; 108 capencode(cappath, path); 109 return SMB_VFS_NEXT_UNLINK(handle, conn, cappath); 110} 111 112static int cap_chmod(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode) 113{ 114 pstring cappath; 115 capencode(cappath, path); 116 return SMB_VFS_NEXT_CHMOD(handle, conn, cappath, mode); 117} 118 119static int cap_chown(vfs_handle_struct *handle, connection_struct *conn, const char *path, uid_t uid, gid_t gid) 120{ 121 pstring cappath; 122 capencode(cappath, path); 123 return SMB_VFS_NEXT_CHOWN(handle, conn, cappath, uid, gid); 124} 125 126static int cap_chdir(vfs_handle_struct *handle, connection_struct *conn, const char *path) 127{ 128 pstring cappath; 129 DEBUG(3,("cap: cap_chdir for %s\n", path)); 130 capencode(cappath, path); 131 return SMB_VFS_NEXT_CHDIR(handle, conn, cappath); 132} 133 134static int cap_utime(vfs_handle_struct *handle, connection_struct *conn, const char *path, struct utimbuf *times) 135{ 136 pstring cappath; 137 capencode(cappath, path); 138 return SMB_VFS_NEXT_UTIME(handle, conn, cappath, times); 139} 140 141 142static BOOL cap_symlink(vfs_handle_struct *handle, connection_struct *conn, const char *oldpath, const char *newpath) 143{ 144 pstring capoldpath, capnewpath; 145 capencode(capoldpath, oldpath); 146 capencode(capnewpath, newpath); 147 return SMB_VFS_NEXT_SYMLINK(handle, conn, capoldpath, capnewpath); 148} 149 150static BOOL cap_readlink(vfs_handle_struct *handle, connection_struct *conn, const char *path, char *buf, size_t bufsiz) 151{ 152 pstring cappath; 153 capencode(cappath, path); 154 return SMB_VFS_NEXT_READLINK(handle, conn, cappath, buf, bufsiz); 155} 156 157static int cap_link(vfs_handle_struct *handle, connection_struct *conn, const char *oldpath, const char *newpath) 158{ 159 pstring capoldpath, capnewpath; 160 capencode(capoldpath, oldpath); 161 capencode(capnewpath, newpath); 162 return SMB_VFS_NEXT_LINK(handle, conn, capoldpath, capnewpath); 163} 164 165static int cap_mknod(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode, SMB_DEV_T dev) 166{ 167 pstring cappath; 168 capencode(cappath, path); 169 return SMB_VFS_NEXT_MKNOD(handle, conn, cappath, mode, dev); 170} 171 172static char *cap_realpath(vfs_handle_struct *handle, connection_struct *conn, const char *path, char *resolved_path) 173{ 174 /* monyo need capencode'ed and capdecode'ed? */ 175 pstring cappath; 176 capencode(cappath, path); 177 return SMB_VFS_NEXT_REALPATH(handle, conn, path, resolved_path); 178} 179 180static BOOL cap_set_nt_acl(vfs_handle_struct *handle, files_struct *fsp, const char *name, uint32 security_info_sent, struct security_descriptor_info *psd) 181{ 182 pstring capname; 183 capencode(capname, name); 184 return SMB_VFS_NEXT_SET_NT_ACL(handle, fsp, capname, security_info_sent, psd); 185} 186 187static int cap_chmod_acl(vfs_handle_struct *handle, connection_struct *conn, const char *name, mode_t mode) 188{ 189 pstring capname; 190 capencode(capname, name); 191 192 /* If the underlying VFS doesn't have ACL support... */ 193 if (!handle->vfs_next.ops.chmod_acl) { 194 errno = ENOSYS; 195 return -1; 196 } 197 return SMB_VFS_NEXT_CHMOD_ACL(handle, conn, capname, mode); 198} 199 200static SMB_ACL_T cap_sys_acl_get_file(vfs_handle_struct *handle, connection_struct *conn, const char *path_p, SMB_ACL_TYPE_T type) 201{ 202 pstring cappath_p; 203 capencode(cappath_p, path_p); 204 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, conn, cappath_p, type); 205} 206 207static int cap_sys_acl_set_file(vfs_handle_struct *handle, connection_struct *conn, const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl) 208{ 209 pstring capname; 210 capencode(capname, name); 211 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, conn, capname, acltype, theacl); 212} 213 214static int cap_sys_acl_delete_def_file(vfs_handle_struct *handle, connection_struct *conn, const char *path) 215{ 216 pstring cappath; 217 capencode(cappath, path); 218 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, conn, cappath); 219} 220 221static ssize_t cap_getxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name, void *value, size_t size) 222{ 223 pstring cappath, capname; 224 capencode(cappath, path); 225 capencode(capname, name); 226 return SMB_VFS_NEXT_GETXATTR(handle, conn, cappath, capname, value, size); 227} 228 229static ssize_t cap_lgetxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name, void *value, size_t 230size) 231{ 232 pstring cappath, capname; 233 capencode(cappath, path); 234 capencode(capname, name); 235 return SMB_VFS_NEXT_LGETXATTR(handle, conn, cappath, capname, value, size); 236} 237 238static ssize_t cap_fgetxattr(vfs_handle_struct *handle, struct files_struct *fsp,int fd, const char *name, void *value, size_t size) 239{ 240 pstring capname; 241 capencode(capname, name); 242 return SMB_VFS_NEXT_FGETXATTR(handle, fsp, fd, capname, value, size); 243} 244 245static ssize_t cap_listxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, char *list, size_t size) 246{ 247 pstring cappath; 248 capencode(cappath, path); 249 return SMB_VFS_NEXT_LISTXATTR(handle, conn, cappath, list, size); 250} 251 252static ssize_t cap_llistxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, char *list, size_t size) 253{ 254 pstring cappath; 255 capencode(cappath, path); 256 return SMB_VFS_NEXT_LLISTXATTR(handle, conn, cappath, list, size); 257} 258 259static int cap_removexattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name) 260{ 261 pstring cappath, capname; 262 capencode(cappath, path); 263 capencode(capname, name); 264 return SMB_VFS_NEXT_REMOVEXATTR(handle, conn, cappath, capname); 265} 266 267static int cap_lremovexattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name) 268{ 269 pstring cappath, capname; 270 capencode(cappath, path); 271 capencode(capname, name); 272 return SMB_VFS_NEXT_LREMOVEXATTR(handle, conn, cappath, capname); 273} 274 275static int cap_fremovexattr(vfs_handle_struct *handle, struct files_struct *fsp,int fd, const char *name) 276{ 277 pstring capname; 278 capencode(capname, name); 279 return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, fd, capname); 280} 281 282static int cap_setxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name, const void *value, size_t size, int flags) 283{ 284 pstring cappath, capname; 285 capencode(cappath, path); 286 capencode(capname, name); 287 return SMB_VFS_NEXT_SETXATTR(handle, conn, cappath, capname, value, size, flags); 288} 289 290static int cap_lsetxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name, const void *value, size_t size, int flags) 291{ 292 pstring cappath, capname; 293 capencode(cappath, path); 294 capencode(capname, name); 295 return SMB_VFS_NEXT_LSETXATTR(handle, conn, cappath, capname, value, size, flags); 296} 297 298static int cap_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,int fd, const char *name, const void *value, size_t size, int flags) 299{ 300 pstring capname; 301 capencode(capname, name); 302 return SMB_VFS_NEXT_FSETXATTR(handle, fsp, fd, capname, value, size, flags); 303} 304 305/* VFS operations structure */ 306 307static vfs_op_tuple cap_op_tuples[] = { 308 309 /* Disk operations */ 310 311 {SMB_VFS_OP(cap_disk_free), SMB_VFS_OP_DISK_FREE, SMB_VFS_LAYER_TRANSPARENT}, 312 313 /* Directory operations */ 314 315 {SMB_VFS_OP(cap_opendir), SMB_VFS_OP_OPENDIR, SMB_VFS_LAYER_TRANSPARENT}, 316 {SMB_VFS_OP(cap_readdir), SMB_VFS_OP_READDIR, SMB_VFS_LAYER_TRANSPARENT}, 317 {SMB_VFS_OP(cap_mkdir), SMB_VFS_OP_MKDIR, SMB_VFS_LAYER_TRANSPARENT}, 318 {SMB_VFS_OP(cap_rmdir), SMB_VFS_OP_RMDIR, SMB_VFS_LAYER_TRANSPARENT}, 319 320 /* File operations */ 321 322 {SMB_VFS_OP(cap_open), SMB_VFS_OP_OPEN, SMB_VFS_LAYER_TRANSPARENT}, 323 {SMB_VFS_OP(cap_rename), SMB_VFS_OP_RENAME, SMB_VFS_LAYER_TRANSPARENT}, 324 {SMB_VFS_OP(cap_stat), SMB_VFS_OP_STAT, SMB_VFS_LAYER_TRANSPARENT}, 325 {SMB_VFS_OP(cap_lstat), SMB_VFS_OP_LSTAT, SMB_VFS_LAYER_TRANSPARENT}, 326 {SMB_VFS_OP(cap_unlink), SMB_VFS_OP_UNLINK, SMB_VFS_LAYER_TRANSPARENT}, 327 {SMB_VFS_OP(cap_chmod), SMB_VFS_OP_CHMOD, SMB_VFS_LAYER_TRANSPARENT}, 328 {SMB_VFS_OP(cap_chown), SMB_VFS_OP_CHOWN, SMB_VFS_LAYER_TRANSPARENT}, 329 {SMB_VFS_OP(cap_chdir), SMB_VFS_OP_CHDIR, SMB_VFS_LAYER_TRANSPARENT}, 330 {SMB_VFS_OP(cap_utime), SMB_VFS_OP_UTIME, SMB_VFS_LAYER_TRANSPARENT}, 331 {SMB_VFS_OP(cap_symlink), SMB_VFS_OP_SYMLINK, SMB_VFS_LAYER_TRANSPARENT}, 332 {SMB_VFS_OP(cap_readlink), SMB_VFS_OP_READLINK, SMB_VFS_LAYER_TRANSPARENT}, 333 {SMB_VFS_OP(cap_link), SMB_VFS_OP_LINK, SMB_VFS_LAYER_TRANSPARENT}, 334 {SMB_VFS_OP(cap_mknod), SMB_VFS_OP_MKNOD, SMB_VFS_LAYER_TRANSPARENT}, 335 {SMB_VFS_OP(cap_realpath), SMB_VFS_OP_REALPATH, SMB_VFS_LAYER_TRANSPARENT}, 336 337 /* NT File ACL operations */ 338 339 {SMB_VFS_OP(cap_set_nt_acl), SMB_VFS_OP_SET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT}, 340 341 /* POSIX ACL operations */ 342 343 {SMB_VFS_OP(cap_chmod_acl), SMB_VFS_OP_CHMOD_ACL, SMB_VFS_LAYER_TRANSPARENT}, 344 345 {SMB_VFS_OP(cap_sys_acl_get_file), SMB_VFS_OP_SYS_ACL_GET_FILE, SMB_VFS_LAYER_TRANSPARENT}, 346 {SMB_VFS_OP(cap_sys_acl_set_file), SMB_VFS_OP_SYS_ACL_SET_FILE, SMB_VFS_LAYER_TRANSPARENT}, 347 {SMB_VFS_OP(cap_sys_acl_delete_def_file), SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE, SMB_VFS_LAYER_TRANSPARENT}, 348 349 /* EA operations. */ 350 {SMB_VFS_OP(cap_getxattr), SMB_VFS_OP_GETXATTR, SMB_VFS_LAYER_TRANSPARENT}, 351 {SMB_VFS_OP(cap_lgetxattr), SMB_VFS_OP_LGETXATTR, SMB_VFS_LAYER_TRANSPARENT}, 352 {SMB_VFS_OP(cap_fgetxattr), SMB_VFS_OP_FGETXATTR, SMB_VFS_LAYER_TRANSPARENT}, 353 {SMB_VFS_OP(cap_listxattr), SMB_VFS_OP_LISTXATTR, SMB_VFS_LAYER_TRANSPARENT}, 354 {SMB_VFS_OP(cap_llistxattr), SMB_VFS_OP_LLISTXATTR, SMB_VFS_LAYER_TRANSPARENT}, 355 {SMB_VFS_OP(cap_removexattr), SMB_VFS_OP_REMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT}, 356 {SMB_VFS_OP(cap_lremovexattr), SMB_VFS_OP_LREMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT}, 357 {SMB_VFS_OP(cap_fremovexattr), SMB_VFS_OP_FREMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT}, 358 {SMB_VFS_OP(cap_setxattr), SMB_VFS_OP_SETXATTR, SMB_VFS_LAYER_TRANSPARENT}, 359 {SMB_VFS_OP(cap_lsetxattr), SMB_VFS_OP_LSETXATTR, SMB_VFS_LAYER_TRANSPARENT}, 360 {SMB_VFS_OP(cap_fsetxattr), SMB_VFS_OP_FSETXATTR, SMB_VFS_LAYER_TRANSPARENT}, 361 362 {NULL, SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP} 363}; 364 365NTSTATUS vfs_cap_init(void) 366{ 367 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "cap", cap_op_tuples); 368} 369 370/* For CAP functions */ 371#define hex_tag ':' 372#define hex2bin(c) hex2bin_table[(unsigned char)(c)] 373#define bin2hex(c) bin2hex_table[(unsigned char)(c)] 374#define is_hex(s) ((s)[0] == hex_tag) 375 376static unsigned char hex2bin_table[256] = { 3770, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */ 3780, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 */ 3790, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 */ 3800, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 0x30 */ 3810000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x40 */ 3820000, 0000, 0000, 0000, 0000, 0000, 0000, 0000, 3830, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 */ 3840000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x60 */ 3850000, 0000, 0000, 0000, 0000, 0000, 0000, 0000, 3860, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 */ 3870, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 */ 3880, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 */ 3890, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xa0 */ 3900, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xb0 */ 3910, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xc0 */ 3920, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xd0 */ 3930, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xe0 */ 3940, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* 0xf0 */ 395}; 396static unsigned char bin2hex_table[256] = "0123456789abcdef"; 397 398/******************************************************************* 399 original code -> ":xx" - CAP format 400********************************************************************/ 401static char *capencode(char *to, const char *from) 402{ 403 pstring cvtbuf; 404 char *out; 405 406 if (to == from) { 407 from = pstrcpy ((char *) cvtbuf, from); 408 } 409 410 for (out = to; *from && (out - to < sizeof(pstring)-7);) { 411 /* buffer husoku error */ 412 if ((unsigned char)*from >= 0x80) { 413 *out++ = hex_tag; 414 *out++ = bin2hex (((*from)>>4)&0x0f); 415 *out++ = bin2hex ((*from)&0x0f); 416 from++; 417 } 418 else { 419 *out++ = *from++; 420 } 421 } 422 *out = '\0'; 423 return to; 424} 425 426/******************************************************************* 427 CAP -> original code 428********************************************************************/ 429/* ":xx" -> a byte */ 430static char *capdecode(char *to, const char *from) 431{ 432 pstring cvtbuf; 433 char *out; 434 435 if (to == from) { 436 from = pstrcpy ((char *) cvtbuf, from); 437 } 438 for (out = to; *from && (out - to < sizeof(pstring)-3);) { 439 if (is_hex(from)) { 440 *out++ = (hex2bin (from[1])<<4) | (hex2bin (from[2])); 441 from += 3; 442 } else { 443 *out++ = *from++; 444 } 445 } 446 *out = '\0'; 447 return to; 448} 449