dos mode handling functions
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) James Peach 2006
-
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-
+
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
static int set_sparse_flag(const SMB_STRUCT_STAT * const sbuf)
{
#if defined (HAVE_STAT_ST_BLOCKS) && defined(STAT_ST_BLOCKSIZE)
- if (sbuf->st_size > sbuf->st_blocks * (SMB_OFF_T)STAT_ST_BLOCKSIZE) {
+ if (sbuf->st_ex_size > sbuf->st_ex_blocks * (SMB_OFF_T)STAT_ST_BLOCKSIZE) {
return FILE_ATTRIBUTE_SPARSE;
}
#endif
return 0;
}
+static int set_link_read_only_flag(const SMB_STRUCT_STAT *const sbuf)
+{
+#ifdef S_ISLNK
+#if LINKS_READ_ONLY
+ if (S_ISLNK(sbuf->st_mode) && S_ISDIR(sbuf->st_mode))
+ return aRONLY;
+#endif
+#endif
+ return 0;
+}
+
/****************************************************************************
Change a dos mode to a unix mode.
Base permission for files:
}
/* Save for later - but explicitly remove setuid bit for safety. */
- dir_mode = sbuf.st_mode & ~S_ISUID;
+ dir_mode = sbuf.st_ex_mode & ~S_ISUID;
DEBUG(2,("unix_mode(%s) inherit mode %o\n",fname,(int)dir_mode));
/* Clear "result" */
result = 0;
if (lp_map_system(SNUM(conn)) && IS_DOS_SYSTEM(dosmode))
result |= S_IXGRP;
-
+
if (lp_map_hidden(SNUM(conn)) && IS_DOS_HIDDEN(dosmode))
result |= S_IXOTH;
Change a unix mode to a dos mode.
****************************************************************************/
-static uint32 dos_mode_from_sbuf(connection_struct *conn, const char *path, SMB_STRUCT_STAT *sbuf)
+static uint32 dos_mode_from_sbuf(connection_struct *conn, const char *path, const SMB_STRUCT_STAT *sbuf)
{
int result = 0;
enum mapreadonly_options ro_opts = (enum mapreadonly_options)lp_map_readonly(SNUM(conn));
if (ro_opts == MAP_READONLY_YES) {
/* Original Samba method - map inverse of user "w" bit. */
- if ((sbuf->st_mode & S_IWUSR) == 0) {
+ if ((sbuf->st_ex_mode & S_IWUSR) == 0) {
result |= aRONLY;
}
} else if (ro_opts == MAP_READONLY_PERMISSIONS) {
}
} /* Else never set the readonly bit. */
- if (MAP_ARCHIVE(conn) && ((sbuf->st_mode & S_IXUSR) != 0))
+ if (MAP_ARCHIVE(conn) && ((sbuf->st_ex_mode & S_IXUSR) != 0))
result |= aARCH;
- if (MAP_SYSTEM(conn) && ((sbuf->st_mode & S_IXGRP) != 0))
+ if (MAP_SYSTEM(conn) && ((sbuf->st_ex_mode & S_IXGRP) != 0))
result |= aSYSTEM;
-
- if (MAP_HIDDEN(conn) && ((sbuf->st_mode & S_IXOTH) != 0))
+
+ if (MAP_HIDDEN(conn) && ((sbuf->st_ex_mode & S_IXOTH) != 0))
result |= aHIDDEN;
-
- if (S_ISDIR(sbuf->st_mode))
+
+ if (S_ISDIR(sbuf->st_ex_mode))
result = aDIR | (result & aRONLY);
result |= set_sparse_flag(sbuf);
-
-#ifdef S_ISLNK
-#if LINKS_READ_ONLY
- if (S_ISLNK(sbuf->st_mode) && S_ISDIR(sbuf->st_mode))
- result |= aRONLY;
-#endif
-#endif
+ result |= set_link_read_only_flag(sbuf);
DEBUG(8,("dos_mode_from_sbuf returning "));
if (result & aSYSTEM) DEBUG(8, ("s"));
if (result & aDIR ) DEBUG(8, ("d"));
if (result & aARCH ) DEBUG(8, ("a"));
-
+
DEBUG(8,("\n"));
return result;
}
Get DOS attributes from an EA.
****************************************************************************/
-static bool get_ea_dos_attribute(connection_struct *conn, const char *path,SMB_STRUCT_STAT *sbuf, uint32 *pattr)
+static bool get_ea_dos_attribute(connection_struct *conn, const char *path, const SMB_STRUCT_STAT *sbuf, uint32 *pattr)
{
ssize_t sizeret;
fstring attrstr;
sizeret = SMB_VFS_GETXATTR(conn, path, SAMBA_XATTR_DOS_ATTRIB, attrstr, sizeof(attrstr));
if (sizeret == -1) {
-#if defined(ENOTSUP) && defined(ENOATTR)
- if ((errno != ENOTSUP) && (errno != ENOATTR) && (errno != EACCES) && (errno != EPERM)) {
+ if (errno == ENOSYS
+#if defined(ENOTSUP)
+ || errno == ENOTSUP) {
+#else
+ ) {
+#endif
DEBUG(1,("get_ea_dos_attributes: Cannot get attribute from EA on file %s: Error = %s\n",
path, strerror(errno) ));
set_store_dos_attributes(SNUM(conn), False);
}
-#endif
return False;
}
/* Null terminate string. */
return False;
}
- if (S_ISDIR(sbuf->st_mode)) {
+ if (S_ISDIR(sbuf->st_ex_mode)) {
dosattr |= aDIR;
}
*pattr = (uint32)(dosattr & SAMBA_ATTRIBUTES_MASK);
if (dosattr & aSYSTEM) DEBUG(8, ("s"));
if (dosattr & aDIR ) DEBUG(8, ("d"));
if (dosattr & aARCH ) DEBUG(8, ("a"));
-
+
DEBUG(8,("\n"));
return True;
#else
) {
#endif
+ DEBUG(1,("set_ea_dos_attributes: Cannot set attribute EA on file %s: Error = %s\n",
+ path, strerror(errno) ));
set_store_dos_attributes(SNUM(conn), False);
}
return False;
* are not violating security in doing the setxattr.
*/
- if (!NT_STATUS_IS_OK(open_file_fchmod(conn,path,sbuf,&fsp)))
+ if (!NT_STATUS_IS_OK(open_file_fchmod(NULL, conn, path, sbuf,
+ &fsp)))
return ret;
become_root();
if (SMB_VFS_SETXATTR(conn, path, SAMBA_XATTR_DOS_ATTRIB, attrstr, strlen(attrstr), 0) == 0) {
ret = True;
}
unbecome_root();
- close_file_fchmod(fsp);
+ close_file_fchmod(NULL, fsp);
return ret;
}
DEBUG(10,("set_ea_dos_attribute: set EA %s on file %s\n", attrstr, path));
Change a unix mode to a dos mode for an ms dfs link.
****************************************************************************/
-uint32 dos_mode_msdfs(connection_struct *conn, const char *path,SMB_STRUCT_STAT *sbuf)
+uint32 dos_mode_msdfs(connection_struct *conn, const char *path, const SMB_STRUCT_STAT *psbuf)
{
+ SMB_STRUCT_STAT sbuf = *psbuf;
uint32 result = 0;
DEBUG(8,("dos_mode_msdfs: %s\n", path));
- if (!VALID_STAT(*sbuf)) {
+ if (!VALID_STAT(sbuf)) {
return 0;
}
} else {
p = path;
}
-
- if (p[0] == '.' && p[1] != '.' && p[1] != 0) {
+
+ /* Only . and .. are not hidden. */
+ if (p[0] == '.' && !((p[1] == '\0') ||
+ (p[1] == '.' && p[2] == '\0'))) {
result |= aHIDDEN;
}
}
-
- result |= dos_mode_from_sbuf(conn, path, sbuf);
+
+ result |= dos_mode_from_sbuf(conn, path, &sbuf);
/* Optimization : Only call is_hidden_path if it's not already
hidden. */
if (result & aDIR ) DEBUG(8, ("d"));
if (result & aARCH ) DEBUG(8, ("a"));
if (result & FILE_ATTRIBUTE_SPARSE ) DEBUG(8, ("[sparse]"));
-
+
DEBUG(8,("\n"));
return(result);
}
+#ifdef HAVE_STAT_DOS_FLAGS
+/****************************************************************************
+ Convert dos attributes (FILE_ATTRIBUTE_*) to dos stat flags (UF_*)
+****************************************************************************/
+
+int dos_attributes_to_stat_dos_flags(uint32_t dosmode)
+{
+ uint32_t dos_stat_flags = 0;
+
+ if (dosmode & aARCH)
+ dos_stat_flags |= UF_DOS_ARCHIVE;
+ if (dosmode & aHIDDEN)
+ dos_stat_flags |= UF_DOS_HIDDEN;
+ if (dosmode & aRONLY)
+ dos_stat_flags |= UF_DOS_RO;
+ if (dosmode & aSYSTEM)
+ dos_stat_flags |= UF_DOS_SYSTEM;
+ if (dosmode & FILE_ATTRIBUTE_NONINDEXED)
+ dos_stat_flags |= UF_DOS_NOINDEX;
+
+ return dos_stat_flags;
+}
+
+/****************************************************************************
+ Gets DOS attributes, accessed via st_ex_flags in the stat struct.
+****************************************************************************/
+
+static bool get_stat_dos_flags(connection_struct *conn,
+ const char *fname,
+ const SMB_STRUCT_STAT *sbuf,
+ uint32_t *dosmode)
+{
+ SMB_ASSERT(sbuf && VALID_STAT(*sbuf));
+ SMB_ASSERT(dosmode);
+
+ if (!lp_store_dos_attributes(SNUM(conn))) {
+ return false;
+ }
+
+ DEBUG(5, ("Getting stat dos attributes for %s.\n", fname));
+
+ if (sbuf->st_ex_flags & UF_DOS_ARCHIVE)
+ *dosmode |= aARCH;
+ if (sbuf->st_ex_flags & UF_DOS_HIDDEN)
+ *dosmode |= aHIDDEN;
+ if (sbuf->st_ex_flags & UF_DOS_RO)
+ *dosmode |= aRONLY;
+ if (sbuf->st_ex_flags & UF_DOS_SYSTEM)
+ *dosmode |= aSYSTEM;
+ if (sbuf->st_ex_flags & UF_DOS_NOINDEX)
+ *dosmode |= FILE_ATTRIBUTE_NONINDEXED;
+ if (S_ISDIR(sbuf->st_ex_mode))
+ *dosmode |= aDIR;
+
+ *dosmode |= set_sparse_flag(sbuf);
+ *dosmode |= set_link_read_only_flag(sbuf);
+
+ return true;
+}
+
+/****************************************************************************
+ Sets DOS attributes, stored in st_ex_flags of the inode.
+****************************************************************************/
+
+static bool set_stat_dos_flags(connection_struct *conn,
+ const char *fname,
+ SMB_STRUCT_STAT *sbuf,
+ uint32_t dosmode,
+ bool *attributes_changed)
+{
+ uint32_t new_flags = 0;
+ int error = 0;
+
+ SMB_ASSERT(sbuf && VALID_STAT(*sbuf));
+ SMB_ASSERT(attributes_changed);
+
+ *attributes_changed = false;
+
+ if (!lp_store_dos_attributes(SNUM(conn))) {
+ return false;
+ }
+
+ DEBUG(5, ("Setting stat dos attributes for %s.\n", fname));
+
+ new_flags = (sbuf->st_ex_flags & ~UF_DOS_FLAGS) |
+ dos_attributes_to_stat_dos_flags(dosmode);
+
+ /* Return early if no flags changed. */
+ if (new_flags == sbuf->st_ex_flags)
+ return true;
+
+ DEBUG(5, ("Setting stat dos attributes=0x%x, prev=0x%x\n", new_flags,
+ sbuf->st_ex_flags));
+
+ /* Set new flags with chflags. */
+ error = SMB_VFS_CHFLAGS(conn, fname, new_flags);
+ if (error) {
+ DEBUG(0, ("Failed setting new stat dos attributes (0x%x) on "
+ "file %s! errno=%d\n", new_flags, fname, errno));
+ return false;
+ }
+
+ *attributes_changed = true;
+ return true;
+}
+#endif /* HAVE_STAT_DOS_FLAGS */
+
/****************************************************************************
Change a unix mode to a dos mode.
****************************************************************************/
-uint32 dos_mode(connection_struct *conn, const char *path,SMB_STRUCT_STAT *sbuf)
+uint32 dos_mode(connection_struct *conn, const char *path, const SMB_STRUCT_STAT *psbuf)
{
+ SMB_STRUCT_STAT sbuf = *psbuf;
uint32 result = 0;
- bool offline;
+ bool offline, used_stat_dos_flags = false;
DEBUG(8,("dos_mode: %s\n", path));
- if (!VALID_STAT(*sbuf)) {
+ if (!VALID_STAT(sbuf)) {
return 0;
}
} else {
p = path;
}
-
- if (p[0] == '.' && p[1] != '.' && p[1] != 0) {
+
+ /* Only . and .. are not hidden. */
+ if (p[0] == '.' && !((p[1] == '\0') ||
+ (p[1] == '.' && p[2] == '\0'))) {
result |= aHIDDEN;
}
}
-
- /* Get the DOS attributes from an EA by preference. */
- if (get_ea_dos_attribute(conn, path, sbuf, &result)) {
- result |= set_sparse_flag(sbuf);
- } else {
- result |= dos_mode_from_sbuf(conn, path, sbuf);
+
+#ifdef HAVE_STAT_DOS_FLAGS
+ used_stat_dos_flags = get_stat_dos_flags(conn, path, &sbuf, &result);
+#endif
+ if (!used_stat_dos_flags) {
+ /* Get the DOS attributes from an EA by preference. */
+ if (get_ea_dos_attribute(conn, path, &sbuf, &result)) {
+ result |= set_sparse_flag(&sbuf);
+ } else {
+ result |= dos_mode_from_sbuf(conn, path, &sbuf);
+ }
}
-
- offline = SMB_VFS_IS_OFFLINE(conn, path, sbuf);
- if (S_ISREG(sbuf->st_mode) && offline) {
+ offline = SMB_VFS_IS_OFFLINE(conn, path, &sbuf);
+ if (S_ISREG(sbuf.st_ex_mode) && offline) {
result |= FILE_ATTRIBUTE_OFFLINE;
}
if (result & aDIR ) DEBUG(8, ("d"));
if (result & aARCH ) DEBUG(8, ("a"));
if (result & FILE_ATTRIBUTE_SPARSE ) DEBUG(8, ("[sparse]"));
-
+
DEBUG(8,("\n"));
return(result);
mode_t tmp;
mode_t unixmode;
int ret = -1, lret = -1;
+ uint32_t old_mode;
/* We only allow READONLY|HIDDEN|SYSTEM|DIRECTORY|ARCHIVE here. */
- dosmode &= SAMBA_ATTRIBUTES_MASK;
+ dosmode &= (SAMBA_ATTRIBUTES_MASK | FILE_ATTRIBUTE_OFFLINE);
DEBUG(10,("file_set_dosmode: setting dos mode 0x%x on file %s\n", dosmode, fname));
return(-1);
}
- unixmode = st->st_mode;
+ unixmode = st->st_ex_mode;
- get_acl_group_bits(conn, fname, &st->st_mode);
+ get_acl_group_bits(conn, fname, &st->st_ex_mode);
- if (S_ISDIR(st->st_mode))
+ if (S_ISDIR(st->st_ex_mode))
dosmode |= aDIR;
else
dosmode &= ~aDIR;
- if (dos_mode(conn,fname,st) == dosmode) {
- st->st_mode = unixmode;
+ old_mode = dos_mode(conn,fname,st);
+
+ if (dosmode & FILE_ATTRIBUTE_OFFLINE) {
+ if (!(old_mode & FILE_ATTRIBUTE_OFFLINE)) {
+ lret = SMB_VFS_SET_OFFLINE(conn, fname);
+ if (lret == -1) {
+ DEBUG(0, ("set_dos_mode: client has asked to set "
+ "FILE_ATTRIBUTE_OFFLINE to %s/%s but there was "
+ "an error while setting it or it is not supported.\n",
+ parent_dir, fname));
+ }
+ }
+ }
+
+ dosmode &= ~FILE_ATTRIBUTE_OFFLINE;
+ old_mode &= ~FILE_ATTRIBUTE_OFFLINE;
+
+ if (old_mode == dosmode) {
+ st->st_ex_mode = unixmode;
return(0);
}
+#ifdef HAVE_STAT_DOS_FLAGS
+ {
+ bool attributes_changed;
+
+ if (set_stat_dos_flags(conn, fname, st, dosmode,
+ &attributes_changed))
+ {
+ if (!newfile && attributes_changed) {
+ notify_fname(conn, NOTIFY_ACTION_MODIFIED,
+ FILE_NOTIFY_CHANGE_ATTRIBUTES, fname);
+ }
+ st->st_ex_mode = unixmode;
+ return 0;
+ }
+ }
+#endif
+
/* Store the DOS attributes in an EA by preference. */
if (set_ea_dos_attribute(conn, fname, st, dosmode)) {
if (!newfile) {
notify_fname(conn, NOTIFY_ACTION_MODIFIED,
FILE_NOTIFY_CHANGE_ATTRIBUTES, fname);
}
- st->st_mode = unixmode;
+ st->st_ex_mode = unixmode;
return 0;
}
if (!MAP_HIDDEN(conn))
mask |= S_IXOTH;
- unixmode |= (st->st_mode & mask);
+ unixmode |= (st->st_ex_mode & mask);
/* if we previously had any r bits set then leave them alone */
- if ((tmp = st->st_mode & (S_IRUSR|S_IRGRP|S_IROTH))) {
+ if ((tmp = st->st_ex_mode & (S_IRUSR|S_IRGRP|S_IROTH))) {
unixmode &= ~(S_IRUSR|S_IRGRP|S_IROTH);
unixmode |= tmp;
}
/* if we previously had any w bits set then leave them alone
whilst adding in the new w bits, if the new mode is not rdonly */
if (!IS_DOS_READONLY(dosmode)) {
- unixmode |= (st->st_mode & (S_IWUSR|S_IWGRP|S_IWOTH));
- }
-
- if (dosmode & FILE_ATTRIBUTE_OFFLINE) {
- lret = SMB_VFS_SET_OFFLINE(conn, fname);
- if (lret == -1) {
- DEBUG(0, ("set_dos_mode: client has asked to set "
- "FILE_ATTRIBUTE_OFFLINE to %s/%s but there was "
- "an error while setting it or it is not supported.\n",
- parent_dir, fname));
- }
+ unixmode |= (st->st_ex_mode & (S_IWUSR|S_IWGRP|S_IWOTH));
}
ret = SMB_VFS_CHMOD(conn, fname, unixmode);
notify_fname(conn, NOTIFY_ACTION_MODIFIED,
FILE_NOTIFY_CHANGE_ATTRIBUTES, fname);
}
- st->st_mode = unixmode;
+ st->st_ex_mode = unixmode;
return 0;
}
* break batch oplocks open by others. JRA.
*/
files_struct *fsp;
- if (!NT_STATUS_IS_OK(open_file_fchmod(conn,fname,st,&fsp)))
+ if (!NT_STATUS_IS_OK(open_file_fchmod(NULL, conn, fname, st,
+ &fsp)))
return -1;
become_root();
ret = SMB_VFS_FCHMOD(fsp, unixmode);
unbecome_root();
- close_file_fchmod(fsp);
+ close_file_fchmod(NULL, fsp);
if (!newfile) {
notify_fname(conn, NOTIFY_ACTION_MODIFIED,
FILE_NOTIFY_CHANGE_ATTRIBUTES, fname);
}
if (ret == 0) {
- st->st_mode = unixmode;
+ st->st_ex_mode = unixmode;
}
}
than POSIX.
*******************************************************************/
-int file_ntimes(connection_struct *conn, const char *fname, const struct timespec ts[2])
+int file_ntimes(connection_struct *conn, const char *fname,
+ struct smb_file_time *ft)
{
SMB_STRUCT_STAT sbuf;
int ret = -1;
errno = 0;
ZERO_STRUCT(sbuf);
+ DEBUG(6, ("file_ntime: actime: %s",
+ time_to_asc(convert_timespec_to_time_t(ft->atime))));
+ DEBUG(6, ("file_ntime: modtime: %s",
+ time_to_asc(convert_timespec_to_time_t(ft->mtime))));
+ DEBUG(6, ("file_ntime: createtime: %s",
+ time_to_asc(convert_timespec_to_time_t(ft->create_time))));
+
/* Don't update the time on read-only shares */
/* We need this as set_filetime (which can be called on
close and other paths) can end up calling this function
return 0;
}
- if(SMB_VFS_NTIMES(conn, fname, ts) == 0) {
+ if(SMB_VFS_NTIMES(conn, fname, ft) == 0) {
return 0;
}
if (can_write_to_file(conn, fname, &sbuf)) {
/* We are allowed to become root and change the filetime. */
become_root();
- ret = SMB_VFS_NTIMES(conn, fname, ts);
+ ret = SMB_VFS_NTIMES(conn, fname, ft);
unbecome_root();
}
return ret;
}
-/*******************************************************************
- Change a filetime - possibly allowing DOS semantics.
-*******************************************************************/
+/******************************************************************
+ Force a "sticky" write time on a pathname. This will always be
+ returned on all future write time queries and set on close.
+******************************************************************/
-bool set_filetime(connection_struct *conn, const char *fname,
- const struct timespec mtime)
+bool set_sticky_write_time_path(connection_struct *conn, const char *fname,
+ struct file_id fileid, const struct timespec mtime)
{
- struct timespec ts[2];
-
if (null_timespec(mtime)) {
- return(True);
+ return true;
}
- ts[1] = mtime; /* mtime. */
- ts[0] = ts[1]; /* atime. */
+ if (!set_sticky_write_time(fileid, mtime)) {
+ return false;
+ }
- if (file_ntimes(conn, fname, ts)) {
- DEBUG(4,("set_filetime(%s) failed: %s\n",
- fname,strerror(errno)));
- return False;
+ return true;
+}
+
+/******************************************************************
+ Force a "sticky" write time on an fsp. This will always be
+ returned on all future write time queries and set on close.
+******************************************************************/
+
+bool set_sticky_write_time_fsp(struct files_struct *fsp, const struct timespec mtime)
+{
+ fsp->write_time_forced = true;
+ TALLOC_FREE(fsp->update_write_time_event);
+
+ return set_sticky_write_time_path(fsp->conn, fsp->fsp_name,
+ fsp->file_id, mtime);
+}
+
+/******************************************************************
+ Update a write time immediately, without the 2 second delay.
+******************************************************************/
+
+bool update_write_time(struct files_struct *fsp)
+{
+ if (!set_write_time(fsp->file_id, timespec_current())) {
+ return false;
}
- notify_fname(conn, NOTIFY_ACTION_MODIFIED,
- FILE_NOTIFY_CHANGE_LAST_WRITE, fname);
+ notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
+ FILE_NOTIFY_CHANGE_LAST_WRITE, fsp->fsp_name);
return true;
}
git.samba.org / ira / wip.git / blobdiff