Beispiel #1
0
/***************************************************** 
setup basic info in a stat structure
*******************************************************/
void smbw_setup_stat(struct stat *st, char *fname, size_t size, int mode)
{
	st->st_mode = 0;

	if (IS_DOS_DIR(mode)) {
		st->st_mode = SMBW_DIR_MODE;
	} else {
		st->st_mode = SMBW_FILE_MODE;
	}

	if (IS_DOS_ARCHIVE(mode)) st->st_mode |= S_IXUSR;
	if (IS_DOS_SYSTEM(mode)) st->st_mode |= S_IXGRP;
	if (IS_DOS_HIDDEN(mode)) st->st_mode |= S_IXOTH;
	if (!IS_DOS_READONLY(mode)) st->st_mode |= S_IWUSR;

	st->st_size = size;
	st->st_blksize = 512;
	st->st_blocks = (size+511)/512;
	st->st_uid = getuid();
	st->st_gid = getgid();
	if (IS_DOS_DIR(mode)) {
		st->st_nlink = 2;
	} else {
		st->st_nlink = 1;
	}
	if (st->st_ino == 0) {
		st->st_ino = smbw_inode(fname);
	}
}
Beispiel #2
0
static int
setup_stat(SMBCCTX *context,
           struct stat *st,
           char *fname,
           SMB_OFF_T size,
           int mode)
{
	TALLOC_CTX *frame = talloc_stackframe();
        
	st->st_mode = 0;
        
	if (IS_DOS_DIR(mode)) {
		st->st_mode = SMBC_DIR_MODE;
	} else {
		st->st_mode = SMBC_FILE_MODE;
	}
        
	if (IS_DOS_ARCHIVE(mode)) st->st_mode |= S_IXUSR;
	if (IS_DOS_SYSTEM(mode)) st->st_mode |= S_IXGRP;
	if (IS_DOS_HIDDEN(mode)) st->st_mode |= S_IXOTH;
	if (!IS_DOS_READONLY(mode)) st->st_mode |= S_IWUSR;
        
	st->st_size = size;
#ifdef HAVE_STAT_ST_BLKSIZE
	st->st_blksize = 512;
#endif
#ifdef HAVE_STAT_ST_BLOCKS
	st->st_blocks = (size+511)/512;
#endif
#ifdef HAVE_STRUCT_STAT_ST_RDEV
	st->st_rdev = 0;
#endif
	st->st_uid = getuid();
	st->st_gid = getgid();
        
	if (IS_DOS_DIR(mode)) {
		st->st_nlink = 2;
	} else {
		st->st_nlink = 1;
	}
        
	if (st->st_ino == 0) {
		st->st_ino = generate_inode(context, fname);
	}
        
	TALLOC_FREE(frame);
	return True;  /* FIXME: Is this needed ? */
        
}
Beispiel #3
0
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);
}
Beispiel #4
0
/****************************************************************************
  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);
}