/*****************************************************
a wrapper for chmod()
*******************************************************/
int smbw_chmod(const char *fname, mode_t newmode)
{
struct smbw_server *srv;
fstring server, share;
pstring path;
uint32 mode;
if (!fname) {
errno = EINVAL;
return -1;
}
smbw_init();
smbw_busy++;
/* work out what server they are after */
smbw_parse_path(fname, server, share, path);
/* get a connection to the server */
srv = smbw_server(server, share);
if (!srv) {
/* smbw_server sets errno */
goto failed;
}
mode = 0;
if (!(newmode & (S_IWUSR | S_IWGRP | S_IWOTH))) mode |= aRONLY;
if ((newmode & S_IXUSR) && lp_map_archive(-1)) mode |= aARCH;
if ((newmode & S_IXGRP) && lp_map_system(-1)) mode |= aSYSTEM;
if ((newmode & S_IXOTH) && lp_map_hidden(-1)) mode |= aHIDDEN;
if (!cli_setatr(&srv->cli, path, mode, 0)) {
errno = smbw_errno(&srv->cli);
goto failed;
}
smbw_busy--;
return 0;
failed:
smbw_busy--;
return -1;
}
mode_t unix_mode(connection_struct *conn, int dosmode,
const struct smb_filename *smb_fname,
const char *inherit_from_dir)
{
mode_t result = (S_IRUSR | S_IRGRP | S_IROTH | S_IWUSR | S_IWGRP | S_IWOTH);
mode_t dir_mode = 0; /* Mode of the inherit_from directory if
* inheriting. */
if (!lp_store_dos_attributes(SNUM(conn)) && IS_DOS_READONLY(dosmode)) {
result &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
}
if ((inherit_from_dir != NULL) && lp_inherit_permissions(SNUM(conn))) {
struct smb_filename *smb_fname_parent;
DEBUG(2, ("unix_mode(%s) inheriting from %s\n",
smb_fname_str_dbg(smb_fname),
inherit_from_dir));
smb_fname_parent = synthetic_smb_fname(
talloc_tos(), inherit_from_dir, NULL, NULL);
if (smb_fname_parent == NULL) {
DEBUG(1,("unix_mode(%s) failed, [dir %s]: No memory\n",
smb_fname_str_dbg(smb_fname),
inherit_from_dir));
return(0);
}
if (SMB_VFS_STAT(conn, smb_fname_parent) != 0) {
DEBUG(4,("unix_mode(%s) failed, [dir %s]: %s\n",
smb_fname_str_dbg(smb_fname),
inherit_from_dir, strerror(errno)));
TALLOC_FREE(smb_fname_parent);
return(0); /* *** shouldn't happen! *** */
}
/* Save for later - but explicitly remove setuid bit for safety. */
dir_mode = smb_fname_parent->st.st_ex_mode & ~S_ISUID;
DEBUG(2,("unix_mode(%s) inherit mode %o\n",
smb_fname_str_dbg(smb_fname), (int)dir_mode));
/* Clear "result" */
result = 0;
TALLOC_FREE(smb_fname_parent);
}
if (IS_DOS_DIR(dosmode)) {
/* We never make directories read only for the owner as under DOS a user
can always create a file in a read-only directory. */
result |= (S_IFDIR | S_IWUSR);
if (dir_mode) {
/* Inherit mode of parent directory. */
result |= dir_mode;
} else {
/* Provisionally add all 'x' bits */
result |= (S_IXUSR | S_IXGRP | S_IXOTH);
/* Apply directory mask */
result &= lp_directory_mask(SNUM(conn));
/* Add in force bits */
result |= lp_force_directory_mode(SNUM(conn));
}
} else {
if (lp_map_archive(SNUM(conn)) && IS_DOS_ARCHIVE(dosmode))
result |= S_IXUSR;
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;
if (dir_mode) {
/* Inherit 666 component of parent directory mode */
result |= dir_mode & (S_IRUSR | S_IRGRP | S_IROTH | S_IWUSR | S_IWGRP | S_IWOTH);
} else {
/* Apply mode mask */
result &= lp_create_mask(SNUM(conn));
/* Add in force bits */
result |= lp_force_create_mode(SNUM(conn));
}
}
DEBUG(3,("unix_mode(%s) returning 0%o\n", smb_fname_str_dbg(smb_fname),
(int)result));
return(result);
}
/****************************************************************************
change a dos mode to a unix mode
base permission for files:
if inheriting
apply read/write bits from parent directory.
else
everybody gets read bit set
dos readonly is represented in unix by removing everyone's write bit
dos archive is represented in unix by the user's execute bit
dos system is represented in unix by the group's execute bit
dos hidden is represented in unix by the other's execute bit
if !inheriting {
Then apply create mask,
then add force bits.
}
base permission for directories:
dos directory is represented in unix by unix's dir bit and the exec bit
if !inheriting {
Then apply create mask,
then add force bits.
}
****************************************************************************/
mode_t unix_mode(connection_struct *conn,int dosmode,const char *fname)
{
mode_t result = (S_IRUSR | S_IRGRP | S_IROTH);
mode_t dir_mode = 0; /* Mode of the parent directory if inheriting. */
if ( !IS_DOS_READONLY(dosmode) )
result |= (S_IWUSR | S_IWGRP | S_IWOTH);
if (fname && lp_inherit_perms(SNUM(conn))) {
char *dname;
SMB_STRUCT_STAT sbuf;
dname = parent_dirname(fname);
DEBUG(2,("unix_mode(%s) inheriting from %s\n",fname,dname));
if (dos_stat(dname,&sbuf) != 0) {
DEBUG(4,("unix_mode(%s) failed, [dir %s]: %s\n",fname,dname,strerror(errno)));
return(0); /* *** shouldn't happen! *** */
}
/* Save for later - but explicitly remove setuid bit for safety. */
dir_mode = sbuf.st_mode & ~S_ISUID;
DEBUG(2,("unix_mode(%s) inherit mode %o\n",fname,(int)dir_mode));
/* Clear "result" */
result = 0;
}
if (IS_DOS_DIR(dosmode)) {
/* We never make directories read only for the owner as under DOS a user
can always create a file in a read-only directory. */
result |= (S_IFDIR | S_IWUSR);
if (dir_mode) {
/* Inherit mode of parent directory. */
result |= dir_mode;
} else {
/* Provisionally add all 'x' bits */
result |= (S_IXUSR | S_IXGRP | S_IXOTH);
/* Apply directory mask */
result &= lp_dir_mask(SNUM(conn));
/* Add in force bits */
result |= lp_force_dir_mode(SNUM(conn));
}
} else {
if (lp_map_archive(SNUM(conn)) && IS_DOS_ARCHIVE(dosmode))
result |= S_IXUSR;
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;
if (dir_mode) {
/* Inherit 666 component of parent directory mode */
result |= dir_mode
& (S_IRUSR | S_IRGRP | S_IROTH | S_IWUSR | S_IWGRP | S_IWOTH);
} else {
/* Apply mode mask */
result &= lp_create_mask(SNUM(conn));
/* Add in force bits */
result |= lp_force_create_mode(SNUM(conn));
}
}
return(result);
}
