Current File : //usr/lib64/python2.7/site-packages/sepolicy/__init__.py
#!/usr/bin/python
# Author: Dan Walsh <dwalsh@redhat.com>
# Author: Ryan Hallisey <rhallise@redhat.com>
from . import policy as _policy
import errno
import selinux
import glob
PROGNAME = "policycoreutils"
import gettext
import sepolgen.defaults as defaults
import sepolgen.interfaces as interfaces
from sepolgen import util
import sys
import subprocess
gettext.bindtextdomain(PROGNAME, "/usr/share/locale")
gettext.textdomain(PROGNAME)
try:
gettext.install(PROGNAME,
unicode=True,
codeset='utf-8')
except TypeError:
# Failover to python3 install
gettext.install(PROGNAME,
codeset='utf-8')
except IOError:
import builtins
builtins.__dict__['_'] = str
TYPE = _policy.TYPE
ROLE = _policy.ROLE
ATTRIBUTE = _policy.ATTRIBUTE
PORT = _policy.PORT
USER = _policy.USER
BOOLEAN = _policy.BOOLEAN
TCLASS = _policy.CLASS
SENS = _policy.SENS
CATS = _policy.CATS
ALLOW = 'allow'
AUDITALLOW = 'auditallow'
NEVERALLOW = 'neverallow'
DONTAUDIT = 'dontaudit'
SOURCE = 'source'
TARGET = 'target'
PERMS = 'permlist'
CLASS = 'class'
TRANSITION = 'transition'
ROLE_ALLOW = 'role_allow'
def info(setype, name=None):
dict_list = _policy.info(setype, name)
return dict_list
def search(types, info=None):
if info:
seinfo = info
else:
seinfo = {}
valid_types = [ALLOW, AUDITALLOW, NEVERALLOW, DONTAUDIT, TRANSITION, ROLE_ALLOW]
for setype in types:
if setype not in valid_types:
raise ValueError("Type has to be in %s" % valid_types)
seinfo[setype] = True
perms = []
if PERMS in seinfo:
perms = info[PERMS]
seinfo[PERMS] = ",".join(seinfo[PERMS])
dict_list = _policy.search(seinfo)
if dict_list and len(perms) != 0:
dict_list = [x for x in dict_list if _dict_has_perms(x, perms)]
return dict_list
def get_conditionals(src, dest, tclass, perm):
tdict = {}
tlist = []
if dest.endswith("_t"):
allows = search([ALLOW], {SOURCE: src, TARGET: dest, CLASS: tclass, PERMS: perm})
else:
# to include attribute
allows = search([ALLOW], {SOURCE: src, CLASS: tclass, PERMS: perm})
for i in allows:
if i['target'] == dest:
allows = []
allows.append(i)
try:
for i in [(y) for y in [x for x in allows if set(perm).issubset(x[PERMS]) and x['boolean']]]:
tdict.update({'source': i['source'], 'boolean': i['boolean']})
if tdict not in tlist:
tlist.append(tdict)
tdict = {}
except KeyError:
return(tlist)
return (tlist)
def get_conditionals_format_text(cond):
enabled = len([x for x in cond if x['boolean'][0][1]]) > 0
return _("-- Allowed %s [ %s ]") % (enabled, " || ".join(set(["%s=%d" % (x['boolean'][0][0], x['boolean'][0][1]) for x in cond])))
def get_types_from_attribute(attribute):
return info(ATTRIBUTE, attribute)[0]["types"]
def get_attributes_from_type(setype):
return info(TYPE, setype)[0]["attributes"]
# determine if entered type is an alias
# and return corresponding type name
def get_real_type_name(setype):
try:
return info(TYPE, setype)[0]["name"]
except RuntimeError:
return None
def file_type_is_executable(setype):
if "exec_type" in get_attributes_from_type(setype):
return True
else:
return False
def file_type_is_entrypoint(setype):
if "entry_type" in get_attributes_from_type(setype):
return True
else:
return False
def get_attributes_from_type(setype):
return info(TYPE, setype)[0]["attributes"]
def file_type_is_executable(setype):
if "exec_type" in get_attributes_from_type(setype):
return True
else:
return False
def file_type_is_entrypoint(setype):
if "entry_type" in get_attributes_from_type(setype):
return True
else:
return False
file_type_str = {}
file_type_str["a"] = _("all files")
file_type_str["f"] = _("regular file")
file_type_str["d"] = _("directory")
file_type_str["c"] = _("character device")
file_type_str["b"] = _("block device")
file_type_str["s"] = _("socket file")
file_type_str["l"] = _("symbolic link")
file_type_str["p"] = _("named pipe")
trans_file_type_str = {}
trans_file_type_str[""] = "a"
trans_file_type_str["--"] = "f"
trans_file_type_str["-d"] = "d"
trans_file_type_str["-c"] = "c"
trans_file_type_str["-b"] = "b"
trans_file_type_str["-s"] = "s"
trans_file_type_str["-l"] = "l"
trans_file_type_str["-p"] = "p"
def get_all_modules():
all_modules = []
cmd = "semodule --list=full 2>/dev/null"
try:
output = subprocess.check_output(cmd,
stderr=subprocess.STDOUT,
shell=True)
l = output.split("\n")
except subprocess.CalledProcessError as e:
from .sedbus import SELinuxDBus
l = SELinuxDBus().semodule_list().split("\n")
for i in l:
if len(i):
all_modules.append(i.split()[1])
return all_modules
def get_all_modules_from_mod_lst():
mod_lst_path = ["/usr/share/selinux/targeted/base.lst", "/usr/share/selinux/targeted/modules-base.lst", "/usr/share/selinux/targeted/modules-contrib.lst"]
all_modules = []
mod_temp = []
for i in mod_lst_path:
try:
fd = open(i, "r")
modules = fd.readlines()
fd.close()
modules = modules[0].split(" ")[:-1]
for m in modules:
mod_temp.append(m)
all_modules.extend(mod_temp)
mod_temp = []
except:
all_modules = []
return all_modules
def get_file_types(setype):
flist = []
mpaths = {}
for f in get_all_file_types():
if f.startswith(gen_short_name(setype)):
flist.append(f)
fcdict = get_fcdict()
for f in flist:
try:
mpaths[f] = (fcdict[f]["regex"], file_type_str[fcdict[f]["ftype"]])
except KeyError:
mpaths[f] = []
return mpaths
def get_writable_files(setype):
all_attributes = get_all_attributes()
file_types = get_all_file_types()
all_writes = []
mpaths = {}
permlist = search([ALLOW], {'source': setype, 'permlist': ['open', 'write'], 'class': 'file'})
if permlist == None or len(permlist) == 0:
return mpaths
fcdict = get_fcdict()
attributes = ["proc_type", "sysctl_type"]
for i in permlist:
if i['target'] in attributes:
continue
if "enabled" in i:
if not i["enabled"]:
continue
if i['target'].endswith("_t"):
if i['target'] not in file_types:
continue
if i['target'] not in all_writes:
if i['target'] != setype:
all_writes.append(i['target'])
else:
for t in get_types_from_attribute(i['target']):
if t not in all_writes:
all_writes.append(t)
for f in all_writes:
try:
mpaths[f] = (fcdict[f]["regex"], file_type_str[fcdict[f]["ftype"]])
except KeyError:
mpaths[f] = [] # {"regex":[],"paths":[]}
return mpaths
import os
import re
import sys
def find_file(reg):
if os.path.exists(reg):
return [reg]
try:
pat = re.compile(r"%s$" % reg)
except:
print("bad reg:", reg)
return []
p = reg
if p.endswith("(/.*)?"):
p = p[:-6] + "/"
path = os.path.dirname(p)
try: # Bug fix: when "all files on system"
if path[-1] != "/": # is pass in it breaks without try block
path += "/"
except IndexError:
print("try failed got an IndexError")
pass
try:
pat = re.compile(r"%s$" % reg)
return list(filter(pat.match, [path + x for x in os.listdir(path)]))
except:
return []
def find_all_files(domain, exclude_list=[]):
all_entrypoints = []
executable_files = get_entrypoints(domain)
for exe in list(executable_files.keys()):
if exe.endswith("_exec_t") and exe not in exclude_list:
for path in executable_files[exe]:
for f in find_file(path):
return f
#all_entrypoints.append(f)
return None
#return all_entrypoints
def find_entrypoint_path(exe, exclude_list=[]):
fcdict = get_fcdict()
try:
if exe.endswith("_exec_t") and exe not in exclude_list:
for path in fcdict[exe]["regex"]:
for f in find_file(path):
return f
except KeyError:
pass
return None
def read_file_equiv(edict, fc_path, modify):
try:
with open(fc_path, "r") as fd:
fc = fd.readlines()
for e in fc:
f = e.split()
edict[f[0]] = {"equiv": f[1], "modify": modify}
except IOError as e:
if e.errno != errno.ENOENT:
raise
return edict
file_equiv_modified = None
def get_file_equiv_modified(fc_path=selinux.selinux_file_context_path()):
global file_equiv_modified
if file_equiv_modified:
return file_equiv_modified
file_equiv_modified = {}
file_equiv_modified = read_file_equiv(file_equiv_modified, fc_path + ".subs", modify=True)
return file_equiv_modified
file_equiv = None
def get_file_equiv(fc_path=selinux.selinux_file_context_path()):
global file_equiv
if file_equiv:
return file_equiv
file_equiv = get_file_equiv_modified(fc_path)
file_equiv = read_file_equiv(file_equiv, fc_path + ".subs_dist", modify=False)
return file_equiv
local_files = None
def get_local_file_paths(fc_path=selinux.selinux_file_context_path()):
global local_files
if local_files:
return local_files
local_files = []
try:
with open(fc_path + ".local", "r") as fd:
fc = fd.readlines()
except IOError as e:
if e.errno != errno.ENOENT:
raise
return []
for i in fc:
rec = i.split()
if len(rec) == 0:
continue
try:
if len(rec) > 2:
ftype = trans_file_type_str[rec[1]]
else:
ftype = "a"
local_files.append((rec[0], ftype))
except KeyError:
pass
return local_files
fcdict = None
def get_fcdict(fc_path=selinux.selinux_file_context_path()):
global fcdict
if fcdict:
return fcdict
fd = open(fc_path, "r")
fc = fd.readlines()
fd.close()
try:
with open(fc_path + ".homedirs", "r") as fd:
fc += fd.readlines()
except IOError as e:
if e.errno != errno.ENOENT:
raise
fcdict = {}
try:
with open(fc_path + ".local", "r") as fd:
fc += fd.readlines()
except IOError as e:
if e.errno != errno.ENOENT:
raise
for i in fc:
rec = i.split()
try:
if len(rec) > 2:
ftype = trans_file_type_str[rec[1]]
else:
ftype = "a"
t = rec[-1].split(":")[2]
if t in fcdict:
fcdict[t]["regex"].append(rec[0])
else:
fcdict[t] = {"regex": [rec[0]], "ftype": ftype}
except:
pass
fcdict["logfile"] = {"regex": ["all log files"]}
fcdict["user_tmp_type"] = {"regex": ["all user tmp files"]}
fcdict["user_home_type"] = {"regex": ["all user home files"]}
fcdict["virt_image_type"] = {"regex": ["all virtual image files"]}
fcdict["noxattrfs"] = {"regex": ["all files on file systems which do not support extended attributes"]}
fcdict["sandbox_tmpfs_type"] = {"regex": ["all sandbox content in tmpfs file systems"]}
fcdict["user_tmpfs_type"] = {"regex": ["all user content in tmpfs file systems"]}
fcdict["file_type"] = {"regex": ["all files on the system"]}
fcdict["samba_share_t"] = {"regex": ["use this label for random content that will be shared using samba"]}
return fcdict
def get_transitions_into(setype):
try:
return [x for x in search([TRANSITION], {'class': 'process'}) if x["transtype"] == setype]
except TypeError:
pass
return None
def get_transitions(setype):
try:
return search([TRANSITION], {'source': setype, 'class': 'process'})
except TypeError:
pass
return None
def get_file_transitions(setype):
try:
return [x for x in search([TRANSITION], {'source': setype}) if x['class'] != "process"]
except TypeError:
pass
return None
def get_boolean_rules(setype, boolean):
boollist = []
permlist = search([ALLOW], {'source': setype})
for p in permlist:
if "boolean" in p:
try:
for b in p["boolean"]:
if boolean in b:
boollist.append(p)
except:
pass
return boollist
def get_all_entrypoints():
return get_types_from_attribute("entry_type")
def get_entrypoint_types(setype):
entrypoints = []
try:
entrypoints = [x['target'] for x in [x for x in search([ALLOW], {'source': setype, 'permlist': ['entrypoint'], 'class':'file'}) if x['source'] == setype]]
except TypeError:
pass
return entrypoints
def get_init_transtype(path):
entrypoint = selinux.getfilecon(path)[1].split(":")[2]
try:
entrypoints = [x for x in search([TRANSITION], {'source': "init_t", 'class': 'process'}) if x['target'] == entrypoint]
if len(entrypoints) == 0:
return None
return entrypoints[0]["transtype"]
except TypeError:
pass
return None
def get_init_entrypoint(transtype):
try:
entrypoints = [x for x in search([TRANSITION], {'source': "init_t", 'class': 'process'}) if x['transtype'] == transtype]
if len(entrypoints) == 0:
return None
return entrypoints[0]["target"]
except TypeError:
pass
return None
def get_init_entrypoint_target(entrypoint):
try:
entrypoints = [x['transtype'] for x in search([TRANSITION], {'source': "init_t", 'target': entrypoint, 'class': 'process'})]
return entrypoints[0]
except TypeError:
pass
return None
def get_entrypoints(setype):
fcdict = get_fcdict()
mpaths = {}
for f in get_entrypoint_types(setype):
try:
mpaths[f] = (fcdict[f]["regex"], file_type_str[fcdict[f]["ftype"]])
except KeyError:
mpaths[f] = []
return mpaths
def policy_sortkey(policy_path):
# Parse the extension of a policy path which looks like .../policy/policy.31
extension = policy_path.rsplit('/policy.', 1)[1]
try:
return int(extension), policy_path
except ValueError:
# Fallback with sorting on the full path
return 0, policy_path
def get_installed_policy(root="/"):
try:
path = root + selinux.selinux_binary_policy_path()
policies = glob.glob("%s.*" % path)
policies.sort(key=policy_sortkey)
return policies[-1]
except:
pass
raise ValueError(_("No SELinux Policy installed"))
def get_store_policy(store):
"""Get the path to the policy file located in the given store name"""
policies = glob.glob("%s%s/policy/policy.*" %
(selinux.selinux_path(), store))
if not policies:
return None
# Return the policy with the higher version number
policies.sort(key=policy_sortkey)
return policies[-1]
methods = []
def get_methods():
global methods
if len(methods) > 0:
return methods
gen_interfaces()
fn = defaults.interface_info()
try:
fd = open(fn)
# List of per_role_template interfaces
ifs = interfaces.InterfaceSet()
ifs.from_file(fd)
methods = list(ifs.interfaces.keys())
fd.close()
except:
sys.stderr.write("could not open interface info [%s]\n" % fn)
sys.exit(1)
methods.sort()
return methods
all_types = None
def get_all_types():
global all_types
if all_types == None:
all_types = [x['name'] for x in info(TYPE)]
return all_types
user_types = None
def get_user_types():
global user_types
if user_types == None:
user_types = info(ATTRIBUTE, "userdomain")[0]["types"]
return user_types
role_allows = None
def get_all_role_allows():
global role_allows
if role_allows:
return role_allows
role_allows = {}
for r in search([ROLE_ALLOW]):
if r["source"] == "system_r" or r["target"] == "system_r":
continue
if r["source"] in role_allows:
role_allows[r["source"]].append(r["target"])
else:
role_allows[r["source"]] = [r["target"]]
return role_allows
def get_all_entrypoint_domains():
import re
all_domains = []
types = get_all_types()
types.sort()
for i in types:
m = re.findall("(.*)%s" % "_exec_t$", i)
if len(m) > 0:
if len(re.findall("(.*)%s" % "_initrc$", m[0])) == 0 and m[0] not in all_domains:
all_domains.append(m[0])
return all_domains
portrecs = None
portrecsbynum = None
def gen_interfaces():
ifile = defaults.interface_info()
headers = defaults.headers()
rebuild = False
try:
if os.stat(headers).st_mtime <= os.stat(ifile).st_mtime:
return
except OSError:
pass
if os.getuid() != 0:
raise ValueError(_("You must regenerate interface info by running /usr/bin/sepolgen-ifgen"))
print(subprocess.check_output("/usr/bin/sepolgen-ifgen",
stderr=subprocess.STDOUT,
shell=True))
def gen_port_dict():
global portrecs
global portrecsbynum
if portrecs:
return (portrecs, portrecsbynum)
portrecsbynum = {}
portrecs = {}
for i in info(PORT):
if i['low'] == i['high']:
port = str(i['low'])
else:
port = "%s-%s" % (str(i['low']), str(i['high']))
if (i['type'], i['protocol']) in portrecs:
portrecs[(i['type'], i['protocol'])].append(port)
else:
portrecs[(i['type'], i['protocol'])] = [port]
if 'range' in i:
portrecsbynum[(i['low'], i['high'], i['protocol'])] = (i['type'], i['range'])
else:
portrecsbynum[(i['low'], i['high'], i['protocol'])] = (i['type'])
return (portrecs, portrecsbynum)
all_domains = None
def get_all_domains():
global all_domains
if not all_domains:
all_domains = info(ATTRIBUTE, "domain")[0]["types"]
return all_domains
def mls_cmp(x, y):
return (int(x[1:]) > int(y[1:])) - (int(x[1:]) < int(y[1:]))
mls_range = None
def get_mls_range():
global mls_range
if mls_range:
return mls_rangeroles
range_dict = info(SENS)
keys = range_dict.keys()
keys.sort(key=util.cmp_to_key(mls_cmp))
mls_range = "%s-%s" % (keys[0], range_dict[keys[-1]])
return mls_range
roles = None
def get_all_roles():
global roles
if roles:
return roles
roles = [x['name'] for x in info(ROLE)]
roles.remove("object_r")
roles.sort()
return roles
selinux_user_list = None
def get_selinux_users():
global selinux_user_list
if not selinux_user_list:
selinux_user_list = info(USER)
for x in selinux_user_list:
x['range'] = "".join(x['range'].split(" "))
return selinux_user_list
login_mappings = None
def get_login_mappings():
global login_mappings
if login_mappings:
return login_mappings
fd = open(selinux.selinux_usersconf_path(), "r")
buf = fd.read()
fd.close()
login_mappings = []
for b in buf.split("\n"):
b = b.strip()
if len(b) == 0 or b.startswith("#"):
continue
x = b.split(":")
login_mappings.append({"name": x[0], "seuser": x[1], "mls": ":".join(x[2:])})
return login_mappings
def get_all_users():
users = [x['name'] for x in get_selinux_users()]
users.sort()
return users
file_types = None
def get_all_file_types():
global file_types
if file_types:
return file_types
file_types = info(ATTRIBUTE, "file_type")[0]["types"]
file_types.sort()
return file_types
port_types = None
def get_all_port_types():
global port_types
if port_types:
return port_types
port_types = info(ATTRIBUTE, "port_type")[0]["types"]
port_types.sort()
return port_types
bools = None
def get_all_bools():
global bools
if not bools:
bools = info(BOOLEAN)
return bools
def prettyprint(f, trim):
return " ".join(f[:-len(trim)].split("_"))
def markup(f):
return f
# Autofill for adding files *************************
DEFAULT_DIRS = {}
DEFAULT_DIRS["/etc"] = "etc_t"
DEFAULT_DIRS["/tmp"] = "tmp_t"
DEFAULT_DIRS["/usr/lib/systemd/system"] = "unit_file_t"
DEFAULT_DIRS["/lib/systemd/system"] = "unit_file_t"
DEFAULT_DIRS["/etc/systemd/system"] = "unit_file_t"
DEFAULT_DIRS["/var/cache"] = "var_cache_t"
DEFAULT_DIRS["/var/lib"] = "var_lib_t"
DEFAULT_DIRS["/var/log"] = "log_t"
DEFAULT_DIRS["/var/run"] = "var_run_t"
DEFAULT_DIRS["/run"] = "var_run_t"
DEFAULT_DIRS["/run/lock"] = "var_lock_t"
DEFAULT_DIRS["/var/run/lock"] = "var_lock_t"
DEFAULT_DIRS["/var/spool"] = "var_spool_t"
DEFAULT_DIRS["/var/www"] = "content_t"
def get_description(f, markup=markup):
txt = "Set files with the %s type, if you want to " % markup(f)
if f.endswith("_var_run_t"):
return txt + "store the %s files under the /run or /var/run directory." % prettyprint(f, "_var_run_t")
if f.endswith("_pid_t"):
return txt + "store the %s files under the /run directory." % prettyprint(f, "_pid_t")
if f.endswith("_var_lib_t"):
return txt + "store the %s files under the /var/lib directory." % prettyprint(f, "_var_lib_t")
if f.endswith("_var_t"):
return txt + "store the %s files under the /var directory." % prettyprint(f, "_var_lib_t")
if f.endswith("_var_spool_t"):
return txt + "store the %s files under the /var/spool directory." % prettyprint(f, "_spool_t")
if f.endswith("_spool_t"):
return txt + "store the %s files under the /var/spool directory." % prettyprint(f, "_spool_t")
if f.endswith("_cache_t") or f.endswith("_var_cache_t"):
return txt + "store the files under the /var/cache directory."
if f.endswith("_keytab_t"):
return txt + "treat the files as kerberos keytab files."
if f.endswith("_lock_t"):
return txt + "treat the files as %s lock data, stored under the /var/lock directory" % prettyprint(f, "_lock_t")
if f.endswith("_log_t"):
return txt + "treat the data as %s log data, usually stored under the /var/log directory." % prettyprint(f, "_log_t")
if f.endswith("_config_t"):
return txt + "treat the files as %s configuration data, usually stored under the /etc directory." % prettyprint(f, "_config_t")
if f.endswith("_conf_t"):
return txt + "treat the files as %s configuration data, usually stored under the /etc directory." % prettyprint(f, "_conf_t")
if f.endswith("_exec_t"):
return txt + "transition an executable to the %s_t domain." % f[:-len("_exec_t")]
if f.endswith("_cgi_content_t"):
return txt + "treat the files as %s cgi content." % prettyprint(f, "_cgi_content_t")
if f.endswith("_rw_content_t"):
return txt + "treat the files as %s read/write content." % prettyprint(f, "_rw_content_t")
if f.endswith("_rw_t"):
return txt + "treat the files as %s read/write content." % prettyprint(f, "_rw_t")
if f.endswith("_write_t"):
return txt + "treat the files as %s read/write content." % prettyprint(f, "_write_t")
if f.endswith("_db_t"):
return txt + "treat the files as %s database content." % prettyprint(f, "_db_t")
if f.endswith("_ra_content_t"):
return txt + "treat the files as %s read/append content." % prettyprint(f, "_ra_conten_t")
if f.endswith("_cert_t"):
return txt + "treat the files as %s certificate data." % prettyprint(f, "_cert_t")
if f.endswith("_key_t"):
return txt + "treat the files as %s key data." % prettyprint(f, "_key_t")
if f.endswith("_secret_t"):
return txt + "treat the files as %s secret data." % prettyprint(f, "_key_t")
if f.endswith("_ra_t"):
return txt + "treat the files as %s read/append content." % prettyprint(f, "_ra_t")
if f.endswith("_ro_t"):
return txt + "treat the files as %s read/only content." % prettyprint(f, "_ro_t")
if f.endswith("_modules_t"):
return txt + "treat the files as %s modules." % prettyprint(f, "_modules_t")
if f.endswith("_content_t"):
return txt + "treat the files as %s content." % prettyprint(f, "_content_t")
if f.endswith("_state_t"):
return txt + "treat the files as %s state data." % prettyprint(f, "_state_t")
if f.endswith("_files_t"):
return txt + "treat the files as %s content." % prettyprint(f, "_files_t")
if f.endswith("_file_t"):
return txt + "treat the files as %s content." % prettyprint(f, "_file_t")
if f.endswith("_data_t"):
return txt + "treat the files as %s content." % prettyprint(f, "_data_t")
if f.endswith("_file_t"):
return txt + "treat the data as %s content." % prettyprint(f, "_file_t")
if f.endswith("_tmp_t"):
return txt + "store %s temporary files in the /tmp directories." % prettyprint(f, "_tmp_t")
if f.endswith("_etc_t"):
return txt + "store %s files in the /etc directories." % prettyprint(f, "_tmp_t")
if f.endswith("_home_t"):
return txt + "store %s files in the users home directory." % prettyprint(f, "_home_t")
if f.endswith("_tmpfs_t"):
return txt + "store %s files on a tmpfs file system." % prettyprint(f, "_tmpfs_t")
if f.endswith("_unit_file_t"):
return txt + "treat files as a systemd unit file."
if f.endswith("_htaccess_t"):
return txt + "treat the file as a %s access file." % prettyprint(f, "_htaccess_t")
return txt + "treat the files as %s data." % prettyprint(f, "_t")
all_attributes = None
def get_all_attributes():
global all_attributes
if not all_attributes:
all_attributes = [x['name'] for x in info(ATTRIBUTE)]
return all_attributes
def policy(policy_file):
global all_domains
global all_attributes
global bools
global all_types
global role_allows
global users
global roles
global file_types
global port_types
all_domains = None
all_attributes = None
bools = None
all_types = None
role_allows = None
users = None
roles = None
file_types = None
port_types = None
try:
_policy.policy(policy_file)
except:
raise ValueError(_("Failed to read %s policy file") % policy_file)
def load_store_policy(store):
policy_file = get_store_policy(store)
if not policy_file:
return None
policy(policy_file)
try:
policy_file = get_installed_policy()
policy(policy_file)
except ValueError as e:
if selinux.is_selinux_enabled() == 1:
raise e
def _dict_has_perms(dict, perms):
for perm in perms:
if perm not in dict[PERMS]:
return False
return True
def gen_short_name(setype):
all_domains = get_all_domains()
if setype.endswith("_t"):
domainname = setype[:-2]
else:
domainname = setype
if get_real_type_name(domainname + "_t") not in all_domains:
raise ValueError("domain %s_t does not exist" % domainname)
if domainname[-1] == 'd':
short_name = domainname[:-1] + "_"
else:
short_name = domainname + "_"
return (domainname, short_name)
def get_bools(setype):
bools = []
domainbools = []
domainname, short_name = gen_short_name(setype)
for i in [x['boolean'] for x in [x for x in search([ALLOW], {'source': setype}) if 'boolean' in x]]:
for b in i:
if not isinstance(b, tuple):
continue
try:
enabled = selinux.security_get_boolean_active(b[0])
except OSError:
enabled = b[1]
if b[0].startswith(short_name) or b[0].startswith(domainname):
if (b[0], enabled) not in domainbools and (b[0], not enabled) not in domainbools:
domainbools.append((b[0], enabled))
else:
if (b[0], enabled) not in bools and (b[0], not enabled) not in bools:
bools.append((b[0], enabled))
return (domainbools, bools)
booleans = None
def get_all_booleans():
global booleans
if not booleans:
booleans = selinux.security_get_boolean_names()[1]
if util.PY3:
booleans = [util.decode_input(x) for x in booleans]
return booleans
booleans_dict = None
import gzip
def policy_xml(path="/usr/share/selinux/devel/policy.xml"):
try:
fd = gzip.open(path)
buf = fd.read()
fd.close()
except IOError:
fd = open(path)
buf = fd.read()
fd.close()
return buf
def gen_bool_dict(path="/usr/share/selinux/devel/policy.xml"):
global booleans_dict
if booleans_dict:
return booleans_dict
import xml.etree.ElementTree
import re
booleans_dict = {}
try:
tree = xml.etree.ElementTree.fromstring(policy_xml(path))
for l in tree.findall("layer"):
for m in l.findall("module"):
for b in m.findall("tunable"):
desc = b.find("desc").find("p").text.strip("\n")
desc = re.sub("\n", " ", desc)
booleans_dict[b.get('name')] = (m.get("name"), b.get('dftval'), desc)
for b in m.findall("bool"):
desc = b.find("desc").find("p").text.strip("\n")
desc = re.sub("\n", " ", desc)
booleans_dict[b.get('name')] = (m.get("name"), b.get('dftval'), desc)
for i in tree.findall("bool"):
desc = i.find("desc").find("p").text.strip("\n")
desc = re.sub("\n", " ", desc)
booleans_dict[i.get('name')] = ("global", i.get('dftval'), desc)
for i in tree.findall("tunable"):
desc = i.find("desc").find("p").text.strip("\n")
desc = re.sub("\n", " ", desc)
booleans_dict[i.get('name')] = ("global", i.get('dftval'), desc)
except IOError as e:
pass
return booleans_dict
def boolean_category(boolean):
booleans_dict = gen_bool_dict()
if boolean in booleans_dict:
return _(booleans_dict[boolean][0])
else:
return _("unknown")
def boolean_desc(boolean):
booleans_dict = gen_bool_dict()
if boolean in booleans_dict:
return _(booleans_dict[boolean][2])
else:
desc = boolean.split("_")
return "Allow %s to %s" % (desc[0], " ".join(desc[1:]))
def get_os_version():
system_release = ""
try:
with open('/etc/system-release') as f:
system_release = f.readline().rstrip()
except IOError:
system_release = "Misc"
return system_release
def reinit():
global all_attributes
global all_domains
global all_types
global booleans
global booleans_dict
global bools
global fcdict
global file_types
global local_files
global methods
global methods
global portrecs
global portrecsbynum
global port_types
global role_allows
global roles
global login_mappings
global selinux_user_list
global user_types
all_attributes = None
all_domains = None
all_types = None
booleans = None
booleans_dict = None
bools = None
fcdict = None
file_types = None
local_files = None
methods = None
methods = None
portrecs = None
portrecsbynum = None
port_types = None
role_allows = None
roles = None
user_types = None
login_mappings = None
selinux_user_list = None
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