diff options
Diffstat (limited to 'synapse/config')
| -rw-r--r-- | synapse/config/server.py | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/synapse/config/server.py b/synapse/config/server.py index 8dce75c56a..7874cd9da7 100644 --- a/synapse/config/server.py +++ b/synapse/config/server.py @@ -17,6 +17,8 @@ import logging import os.path +from netaddr import IPSet + from synapse.http.endpoint import parse_and_validate_server_name from synapse.python_dependencies import DependencyException, check_requirements @@ -137,6 +139,24 @@ class ServerConfig(Config): for domain in federation_domain_whitelist: self.federation_domain_whitelist[domain] = True + self.federation_ip_range_blacklist = config.get( + "federation_ip_range_blacklist", [], + ) + + # Attempt to create an IPSet from the given ranges + try: + self.federation_ip_range_blacklist = IPSet( + self.federation_ip_range_blacklist + ) + + # Always blacklist 0.0.0.0, :: + self.federation_ip_range_blacklist.update(["0.0.0.0", "::"]) + except Exception as e: + raise ConfigError( + "Invalid range(s) provided in " + "federation_ip_range_blacklist: %s" % e + ) + if self.public_baseurl is not None: if self.public_baseurl[-1] != '/': self.public_baseurl += '/' @@ -386,6 +406,24 @@ class ServerConfig(Config): # - nyc.example.com # - syd.example.com + # Prevent federation requests from being sent to the following + # blacklist IP address CIDR ranges. If this option is not specified, or + # specified with an empty list, no ip range blacklist will be enforced. + # + # (0.0.0.0 and :: are always blacklisted, whether or not they are explicitly + # listed here, since they correspond to unroutable addresses.) + # + federation_ip_range_blacklist: + - '127.0.0.0/8' + - '10.0.0.0/8' + - '172.16.0.0/12' + - '192.168.0.0/16' + - '100.64.0.0/10' + - '169.254.0.0/16' + - '::1/128' + - 'fe80::/64' + - 'fc00::/7' + # List of ports that Synapse should listen on, their purpose and their # configuration. # |