def set_rules(self, rules, flush=False):
temp_file = tempFile()
table = "filter"
table_rules = {}
for rule in rules:
try:
i = rule.index("-t")
except Exception:
pass
else:
if len(rule) >= i + 1:
rule.pop(i)
table = rule.pop(i)
# we can not use joinArgs here, because it would use "'" instead
# of '"' for the start and end of the string, this breaks
# iptables-restore
for i in range(len(rule)):
for c in string.whitespace:
if c in rule[i] and not (rule[i].startswith('"')
and rule[i].endswith('"')):
rule[i] = '"%s"' % rule[i]
table_rules.setdefault(table, []).append(rule)
for table in table_rules:
temp_file.write("*%s\n" % table)
for rule in table_rules[table]:
temp_file.write(" ".join(rule) + "\n")
temp_file.close()
stat = os.stat(temp_file.name)
log.debug2("%s: %s %s", self.__class__, self._restore_command,
"%s: %d" % (temp_file.name, stat.st_size))
args = []
if not flush:
args.append("--noflush")
(status, ret) = runProg(self._restore_command,
args,
stdin=temp_file.name)
if log.getDebugLogLevel() > 2:
lines = readfile(temp_file.name)
if lines is not None:
i = 1
for line in lines:
log.debug3("%8d: %s" % (i, line), nofmt=1, nl=0)
if not line.endswith("\n"):
log.debug3("", nofmt=1)
i += 1
os.unlink(temp_file.name)
if status != 0:
raise ValueError("'%s %s' failed: %s" %
(self._restore_command, " ".join(args), ret))
return ret
def set_rules(self, rules, flush=False):
temp_file = tempFile()
table = "filter"
table_rules = { }
for rule in rules:
try:
i = rule.index("-t")
except Exception:
pass
else:
if len(rule) >= i+1:
rule.pop(i)
table = rule.pop(i)
# we can not use joinArgs here, because it would use "'" instead
# of '"' for the start and end of the string, this breaks
# iptables-restore
for i in range(len(rule)):
for c in string.whitespace:
if c in rule[i] and not (rule[i].startswith('"') and
rule[i].endswith('"')):
rule[i] = '"%s"' % rule[i]
table_rules.setdefault(table, []).append(rule)
for table in table_rules:
temp_file.write("*%s\n" % table)
for rule in table_rules[table]:
temp_file.write(" ".join(rule) + "\n")
temp_file.close()
stat = os.stat(temp_file.name)
log.debug2("%s: %s %s", self.__class__, self._restore_command,
"%s: %d" % (temp_file.name, stat.st_size))
args = [ ]
if not flush:
args.append("--noflush")
(status, ret) = runProg(self._restore_command, args,
stdin=temp_file.name)
if log.getDebugLogLevel() > 2:
lines = readfile(temp_file.name)
if lines is not None:
i = 1
for line in lines:
log.debug3("%8d: %s" % (i, line), nofmt=1, nl=0)
if not line.endswith("\n"):
log.debug3("", nofmt=1)
i += 1
os.unlink(temp_file.name)
if status != 0:
raise ValueError("'%s %s' failed: %s" % (self._restore_command,
" ".join(args), ret))
return ret
def set_restore(self,
set_name,
type_name,
entries,
create_options=None,
entry_options=None):
self.check_name(set_name)
self.check_type(type_name)
temp_file = tempFile()
if ' ' in set_name:
set_name = "'%s'" % set_name
args = ["create", set_name, type_name, "-exist"]
if create_options:
for key, val in create_options.items():
args.append(key)
if val != "":
args.append(val)
temp_file.write("%s\n" % " ".join(args))
temp_file.write("flush %s\n" % set_name)
for entry in entries:
if ' ' in entry:
entry = "'%s'" % entry
if entry_options:
temp_file.write("add %s %s %s\n" % \
(set_name, entry, " ".join(entry_options)))
else:
temp_file.write("add %s %s\n" % (set_name, entry))
temp_file.close()
stat = os.stat(temp_file.name)
log.debug2("%s: %s restore %s", self.__class__, self._command,
"%s: %d" % (temp_file.name, stat.st_size))
args = ["restore"]
(status, ret) = runProg(self._command, args, stdin=temp_file.name)
if log.getDebugLogLevel() > 2:
try:
readfile(temp_file.name)
except Exception:
pass
else:
i = 1
for line in readfile(temp_file.name):
log.debug3("%8d: %s" % (i, line), nofmt=1, nl=0)
if not line.endswith("\n"):
log.debug3("", nofmt=1)
i += 1
os.unlink(temp_file.name)
if status != 0:
raise ValueError("'%s %s' failed: %s" %
(self._command, " ".join(args), ret))
return ret
def set_rules(self, rules, flush=False):
temp_file = tempFile()
table = "filter"
table_rules = {}
for rule in rules:
try:
i = rule.index("-t")
except:
pass
else:
if len(rule) >= i + 1:
rule.pop(i)
table = rule.pop(i)
table_rules.setdefault(table, []).append(rule)
for table in table_rules:
temp_file.write("*%s\n" % table)
for rule in table_rules[table]:
temp_file.write(" ".join(rule) + "\n")
temp_file.write("COMMIT\n")
temp_file.close()
stat = os.stat(temp_file.name)
log.debug2("%s: %s %s", self.__class__, self._restore_command,
"%s: %d" % (temp_file.name, stat.st_size))
args = []
if not flush:
args.append("-n")
(status, ret) = runProg(self._restore_command,
args,
stdin=temp_file.name)
if log.getDebugLogLevel() > 2:
try:
lines = readfile(temp_file.name)
except:
pass
else:
i = 1
for line in readfile(temp_file.name):
log.debug3("%8d: %s" % (i, line), nofmt=1, nl=0)
if not line.endswith("\n"):
log.debug3("", nofmt=1)
i += 1
os.unlink(temp_file.name)
if status != 0:
raise ValueError("'%s %s' failed: %s" %
(self._restore_command, " ".join(args), ret))
return ret
def set_rules(self, rules, flush=False):
temp_file = tempFile()
table = "filter"
table_rules = { }
for rule in rules:
try:
i = rule.index("-t")
except:
pass
else:
if len(rule) >= i+1:
rule.pop(i)
table = rule.pop(i)
table_rules.setdefault(table, []).append(rule)
for table in table_rules:
temp_file.write("*%s\n" % table)
for rule in table_rules[table]:
temp_file.write(" ".join(rule) + "\n")
temp_file.write("COMMIT\n")
temp_file.close()
stat = os.stat(temp_file.name)
log.debug2("%s: %s %s", self.__class__, self._restore_command,
"%s: %d" % (temp_file.name, stat.st_size))
args = [ ]
if not flush:
args.append("-n")
(status, ret) = runProg(self._restore_command, args,
stdin=temp_file.name)
if log.getDebugLogLevel() > 2:
try:
lines = readfile(temp_file.name)
except:
pass
else:
i = 1
for line in readfile(temp_file.name):
log.debug3("%8d: %s" % (i, line), nofmt=1, nl=0)
if not line.endswith("\n"):
log.debug3("", nofmt=1)
i += 1
os.unlink(temp_file.name)
if status != 0:
raise ValueError("'%s %s' failed: %s" % (self._restore_command,
" ".join(args), ret))
return ret
def restore(self, set_name, type_name, entries,
create_options=None, entry_options=None):
self.check_name(set_name)
self.check_type(type_name)
temp_file = tempFile()
if ' ' in set_name:
set_name = "'%s'" % set_name
args = [ "create", set_name, type_name, "-exist" ]
if create_options:
for key, val in create_options.items():
args.append(key)
if val != "":
args.append(val)
temp_file.write("%s\n" % " ".join(args))
for entry in entries:
if ' ' in entry:
entry = "'%s'" % entry
if entry_options:
temp_file.write("add %s %s %s -exist\n" % \
(set_name, entry, " ".join(entry_options)))
else:
temp_file.write("add %s %s -exist\n" % (set_name, entry))
temp_file.close()
stat = os.stat(temp_file.name)
log.debug2("%s: %s restore %s", self.__class__, self._command,
"%s: %d" % (temp_file.name, stat.st_size))
args = [ "restore" ]
(status, ret) = runProg(self._command, args,
stdin=temp_file.name)
if log.getDebugLogLevel() > 2:
try:
readfile(temp_file.name)
except Exception:
pass
else:
i = 1
for line in readfile(temp_file.name):
log.debug3("%8d: %s" % (i, line), nofmt=1, nl=0)
if not line.endswith("\n"):
log.debug3("", nofmt=1)
i += 1
os.unlink(temp_file.name)
if status != 0:
raise ValueError("'%s %s' failed: %s" % (self._command,
" ".join(args), ret))
return ret
def access_check(self, key, value):
if key == "context":
log.debug2('Doing access check for context "%s"' % value)
if self.lockdown_whitelist.match_context(value):
log.debug3('context matches.')
return True
elif key == "uid":
log.debug2('Doing access check for uid %d' % value)
if self.lockdown_whitelist.match_uid(value):
log.debug3('uid matches.')
return True
elif key == "user":
log.debug2('Doing access check for user "%s"' % value)
if self.lockdown_whitelist.match_user(value):
log.debug3('user matches.')
return True
elif key == "command":
log.debug2('Doing access check for command "%s"' % value)
if self.lockdown_whitelist.match_command(value):
log.debug3('command matches.')
return True
return False
def access_check(self, key, value):
if key == "context":
log.debug2('Doing access check for context "%s"' % value)
if self.lockdown_whitelist.match_context(value):
log.debug3('context matches.')
return True
elif key == "uid":
log.debug2('Doing access check for uid %d' % value)
if self.lockdown_whitelist.match_uid(value):
log.debug3('uid matches.')
return True
elif key == "user":
log.debug2('Doing access check for user "%s"' % value)
if self.lockdown_whitelist.match_user(value):
log.debug3('user matches.')
return True
elif key == "command":
log.debug2('Doing access check for command "%s"' % value)
if self.lockdown_whitelist.match_command(value):
log.debug3('command matches.')
return True
return False
def set_rules(self, rules, log_denied):
temp_file = tempFile()
table_rules = {}
for _rule in rules:
rule = _rule[:]
# replace %%REJECT%%
self._rule_replace(rule, "%%REJECT%%", \
["REJECT", "--reject-with", DEFAULT_REJECT_TYPE[self.ipv]])
# replace %%ICMP%%
self._rule_replace(rule, "%%ICMP%%", [ICMP[self.ipv]])
# replace %%LOGTYPE%%
try:
i = rule.index("%%LOGTYPE%%")
except ValueError:
pass
else:
if log_denied == "off":
continue
if log_denied in ["unicast", "broadcast", "multicast"]:
rule[i:i + 1] = ["-m", "pkttype", "--pkt-type", log_denied]
else:
rule.pop(i)
table = "filter"
# get table form rule
for opt in ["-t", "--table"]:
try:
i = rule.index(opt)
except ValueError:
pass
else:
if len(rule) >= i + 1:
rule.pop(i)
table = rule.pop(i)
# we can not use joinArgs here, because it would use "'" instead
# of '"' for the start and end of the string, this breaks
# iptables-restore
for i in range(len(rule)):
for c in string.whitespace:
if c in rule[i] and not (rule[i].startswith('"')
and rule[i].endswith('"')):
rule[i] = '"%s"' % rule[i]
table_rules.setdefault(table, []).append(rule)
for table in table_rules:
rules = table_rules[table]
rules = self.split_value(rules, ["-s", "--source"])
rules = self.split_value(rules, ["-d", "--destination"])
temp_file.write("*%s\n" % table)
for rule in rules:
temp_file.write(" ".join(rule) + "\n")
temp_file.write("COMMIT\n")
temp_file.close()
stat = os.stat(temp_file.name)
log.debug2("%s: %s %s", self.__class__, self._restore_command,
"%s: %d" % (temp_file.name, stat.st_size))
args = []
if self.restore_wait_option:
args.append(self.restore_wait_option)
args.append("-n")
(status, ret) = runProg(self._restore_command,
args,
stdin=temp_file.name)
if log.getDebugLogLevel() > 2:
lines = readfile(temp_file.name)
if lines is not None:
i = 1
for line in lines:
log.debug3("%8d: %s" % (i, line), nofmt=1, nl=0)
if not line.endswith("\n"):
log.debug3("", nofmt=1)
i += 1
os.unlink(temp_file.name)
if status != 0:
raise ValueError("'%s %s' failed: %s" %
(self._restore_command, " ".join(args), ret))
return ret
def set_rules(self, rules, flush=False, log_denied="off"):
temp_file = tempFile()
table_rules = { }
for _rule in rules:
rule = _rule[:]
# replace %%REJECT%%
self._rule_replace(rule, "%%REJECT%%", \
["REJECT", "--reject-with", DEFAULT_REJECT_TYPE[self.ipv]])
# replace %%ICMP%%
self._rule_replace(rule, "%%ICMP%%", [ICMP[self.ipv]])
# replace %%LOGTYPE%%
try:
i = rule.index("%%LOGTYPE%%")
except ValueError:
pass
else:
if log_denied == "off":
continue
if log_denied in [ "unicast", "broadcast", "multicast" ]:
rule[i:i+1] = [ "-m", "pkttype", "--pkt-type", log_denied ]
else:
rule.pop(i)
table = "filter"
# get table form rule
for opt in [ "-t", "--table" ]:
try:
i = rule.index(opt)
except ValueError:
pass
else:
if len(rule) >= i+1:
rule.pop(i)
table = rule.pop(i)
# we can not use joinArgs here, because it would use "'" instead
# of '"' for the start and end of the string, this breaks
# iptables-restore
for i in range(len(rule)):
for c in string.whitespace:
if c in rule[i] and not (rule[i].startswith('"') and
rule[i].endswith('"')):
rule[i] = '"%s"' % rule[i]
table_rules.setdefault(table, []).append(rule)
for table in table_rules:
rules = table_rules[table]
rules = self.split_value(rules, [ "-s", "--source" ])
rules = self.split_value(rules, [ "-d", "--destination" ])
temp_file.write("*%s\n" % table)
for rule in rules:
temp_file.write(" ".join(rule) + "\n")
temp_file.write("COMMIT\n")
temp_file.close()
stat = os.stat(temp_file.name)
log.debug2("%s: %s %s", self.__class__, self._restore_command,
"%s: %d" % (temp_file.name, stat.st_size))
args = [ ]
if self.restore_wait_option:
args.append(self.restore_wait_option)
if not flush:
args.append("-n")
(status, ret) = runProg(self._restore_command, args,
stdin=temp_file.name)
if log.getDebugLogLevel() > 2:
lines = readfile(temp_file.name)
if lines is not None:
i = 1
for line in lines:
log.debug3("%8d: %s" % (i, line), nofmt=1, nl=0)
if not line.endswith("\n"):
log.debug3("", nofmt=1)
i += 1
os.unlink(temp_file.name)
if status != 0:
raise ValueError("'%s %s' failed: %s" % (self._restore_command,
" ".join(args), ret))
return ret
