| Jeff Vander Stoep | 74e4f93 | 2016-02-08 15:27:10 -0800 | [diff] [blame] | 1 | # Authors: Karl MacMillan <kmacmillan@mentalrootkit.com> |
| 2 | # |
| 3 | # Copyright (C) 2006 Red Hat |
| 4 | # see file 'COPYING' for use and warranty information |
| 5 | # |
| 6 | # This program is free software; you can redistribute it and/or |
| 7 | # modify it under the terms of the GNU General Public License as |
| 8 | # published by the Free Software Foundation; version 2 only |
| 9 | # |
| 10 | # This program is distributed in the hope that it will be useful, |
| 11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | # GNU General Public License for more details. |
| 14 | # |
| 15 | # You should have received a copy of the GNU General Public License |
| 16 | # along with this program; if not, write to the Free Software |
| 17 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | # |
| 19 | |
| 20 | import os |
| 21 | import re |
| 22 | |
| 23 | # Select the correct location for the development files based on a |
| 24 | # path variable (optionally read from a configuration file) |
| 25 | class PathChoooser(object): |
| 26 | def __init__(self, pathname): |
| 27 | self.config = dict() |
| 28 | if not os.path.exists(pathname): |
| 29 | self.config_pathname = "(defaults)" |
| 30 | self.config["SELINUX_DEVEL_PATH"] = "/usr/share/selinux/default:/usr/share/selinux/mls:/usr/share/selinux/devel" |
| 31 | return |
| 32 | self.config_pathname = pathname |
| 33 | ignore = re.compile(r"^\s*(?:#.+)?$") |
| 34 | consider = re.compile(r"^\s*(\w+)\s*=\s*(.+?)\s*$") |
| 35 | for lineno, line in enumerate(open(pathname)): |
| 36 | if ignore.match(line): continue |
| 37 | mo = consider.match(line) |
| 38 | if not mo: |
| 39 | raise ValueError("%s:%d: line is not in key = value format" % (pathname, lineno+1)) |
| 40 | self.config[mo.group(1)] = mo.group(2) |
| 41 | |
| 42 | # We're only exporting one useful function, so why not be a function |
| 43 | def __call__(self, testfilename, pathset="SELINUX_DEVEL_PATH"): |
| 44 | paths = self.config.get(pathset, None) |
| 45 | if paths is None: |
| 46 | raise ValueError("%s was not in %s" % (pathset, self.config_pathname)) |
| 47 | paths = paths.split(":") |
| 48 | for p in paths: |
| 49 | target = os.path.join(p, testfilename) |
| 50 | if os.path.exists(target): return target |
| 51 | return os.path.join(paths[0], testfilename) |
| 52 | |
| 53 | |
| 54 | """ |
| 55 | Various default settings, including file and directory locations. |
| 56 | """ |
| 57 | |
| 58 | def data_dir(): |
| 59 | return "/var/lib/sepolgen" |
| 60 | |
| 61 | def perm_map(): |
| 62 | return data_dir() + "/perm_map" |
| 63 | |
| 64 | def interface_info(): |
| 65 | return data_dir() + "/interface_info" |
| 66 | |
| 67 | def attribute_info(): |
| 68 | return data_dir() + "/attribute_info" |
| 69 | |
| 70 | def refpolicy_makefile(): |
| 71 | chooser = PathChoooser("/etc/selinux/sepolgen.conf") |
| 72 | return chooser("Makefile") |
| 73 | |
| 74 | def headers(): |
| 75 | chooser = PathChoooser("/etc/selinux/sepolgen.conf") |
| 76 | return chooser("include") |
| 77 | |