def _check_config(self, config, item): if item == "ports": for port in config: if port[0] != "": check_port(port[0]) check_tcpudp(port[1]) else: # only protocol check_protocol(port[1]) elif item == "protocols": for proto in config: check_protocol(proto) elif item == "source_ports": for port in config: check_port(port[0]) check_tcpudp(port[1]) elif item == "destination": for destination in config: if destination not in [ "ipv4", "ipv6" ]: raise FirewallError(errors.INVALID_DESTINATION, "'%s' not in {'ipv4'|'ipv6'}" % \ destination) check_address(destination, config[destination]) elif item == "modules": for module in config: if not module.startswith("nf_conntrack_"): raise FirewallError(errors.INVALID_MODULE, module) elif len(module.replace("nf_conntrack_", "")) < 1: raise FirewallError(errors.INVALID_MODULE, module)
def _check_config(self, config, item, all_config): if item == "ports": for port in config: if port[0] != "": check_port(port[0]) check_tcpudp(port[1]) else: # only protocol check_protocol(port[1]) elif item == "protocols": for proto in config: check_protocol(proto) elif item == "source_ports": for port in config: check_port(port[0]) check_tcpudp(port[1]) elif item == "destination": for destination in config: if destination not in ["ipv4", "ipv6"]: raise FirewallError(errors.INVALID_DESTINATION, "'%s' not in {'ipv4'|'ipv6'}" % \ destination) check_address(destination, config[destination]) elif item == "modules": for module in config: if module.startswith("nf_conntrack_"): module = module.replace("nf_conntrack_", "") if "_" in module: module = module.replace("_", "-") if len(module) < 2: raise FirewallError(errors.INVALID_MODULE, module)
def startElement(self, name, attrs): IO_Object_ContentHandler.startElement(self, name, attrs) self.item.parser_check_element_attrs(name, attrs) if name == "service": if "name" in attrs: log.warning("Ignoring deprecated attribute name='%s'", attrs["name"]) if "version" in attrs: self.item.version = attrs["version"] elif name == "short": pass elif name == "description": pass elif name == "port": if attrs["port"] != "": check_port(attrs["port"]) check_tcpudp(attrs["protocol"]) entry = (attrs["port"], attrs["protocol"]) if entry not in self.item.ports: self.item.ports.append(entry) else: log.warning("Port '%s/%s' already set, ignoring.", attrs["port"], attrs["protocol"]) else: check_protocol(attrs["protocol"]) if attrs["protocol"] not in self.item.protocols: self.item.protocols.append(attrs["protocol"]) else: log.warning("Protocol '%s' already set, ignoring.", attrs["protocol"]) elif name == "protocol": check_protocol(attrs["value"]) if attrs["value"] not in self.item.protocols: self.item.protocols.append(attrs["value"]) else: log.warning("Protocol '%s' already set, ignoring.", attrs["value"]) elif name == "source-port": check_port(attrs["port"]) check_tcpudp(attrs["protocol"]) entry = (attrs["port"], attrs["protocol"]) if entry not in self.item.source_ports: self.item.source_ports.append(entry) else: log.warning("SourcePort '%s/%s' already set, ignoring.", attrs["port"], attrs["protocol"]) elif name == "destination": for x in ["ipv4", "ipv6"]: if x in attrs: check_address(x, attrs[x]) if x in self.item.destination: log.warning( "Destination address for '%s' already set, ignoring", x) else: self.item.destination[x] = attrs[x] elif name == "module": module = attrs["name"] if module.startswith("nf_conntrack_"): module = module.replace("nf_conntrack_", "") if "_" in module: module = module.replace("_", "-") if module not in self.item.modules: self.item.modules.append(module) else: log.warning("Module '%s' already set, ignoring.", module) elif name == "include": if attrs["service"] not in self.item.includes: self.item.includes.append(attrs["service"]) else: log.warning("Include '%s' already set, ignoring.", attrs["service"]) elif name == "helper": if attrs["name"] not in self.item.helpers: self.item.helpers.append(attrs["name"]) else: log.warning("Helper '%s' already set, ignoring.", attrs["name"])
def startElement(self, name, attrs): IO_Object_ContentHandler.startElement(self, name, attrs) self.item.parser_check_element_attrs(name, attrs) if name == "service": if "name" in attrs: log.warning("Ignoring deprecated attribute name='%s'", attrs["name"]) if "version" in attrs: self.item.version = attrs["version"] elif name == "short": pass elif name == "description": pass elif name == "port": if attrs["port"] != "": check_port(attrs["port"]) check_tcpudp(attrs["protocol"]) entry = (attrs["port"], attrs["protocol"]) if entry not in self.item.ports: self.item.ports.append(entry) else: log.warning("Port '%s/%s' already set, ignoring.", attrs["port"], attrs["protocol"]) else: check_protocol(attrs["protocol"]) if attrs["protocol"] not in self.item.protocols: self.item.protocols.append(attrs["protocol"]) else: log.warning("Protocol '%s' already set, ignoring.", attrs["protocol"]) elif name == "protocol": check_protocol(attrs["value"]) if attrs["value"] not in self.item.protocols: self.item.protocols.append(attrs["value"]) else: log.warning("Protocol '%s' already set, ignoring.", attrs["value"]) elif name == "source-port": check_port(attrs["port"]) check_tcpudp(attrs["protocol"]) entry = (attrs["port"], attrs["protocol"]) if entry not in self.item.source_ports: self.item.source_ports.append(entry) else: log.warning("SourcePort '%s/%s' already set, ignoring.", attrs["port"], attrs["protocol"]) elif name == "destination": for x in [ "ipv4", "ipv6" ]: if x in attrs: check_address(x, attrs[x]) if x in self.item.destination: log.warning("Destination address for '%s' already set, ignoring", x) else: self.item.destination[x] = attrs[x] elif name == "module": if attrs["name"].startswith("nf_conntrack_") and \ len(attrs["name"].replace("nf_conntrack_", "")) > 0: if attrs["name"] not in self.item.modules: self.item.modules.append(attrs["name"]) else: log.warning("Module '%s' already set, ignoring.", attrs["name"]) else: log.warning("Invalid module '%s'", attrs["name"])