nullnet-firewall

Changed

• FirewallErrors now also include information about the file line number responsible for the error, enabling an easier debugging activity.

Added

• Firewall::data_link method to set the DataLink type of the Firewall: in addition to Ethernet, now also raw IP is supported.
• Firewall::log method to allow users enable or disable logging (it's still enabled by default).

Added

• Log capabilities for the firewall: packets are logged both in standard output
  and in a SQLite database with path ./log.sqlite (#1).
• Firewall::update_rules to update the rules of a previously instantiated firewall.
• Quick rules: each of the rules can now be preceded by a + character
  that will make it have higher priority (quick rule).
• Comments: the file defining firewall rules can now contain comment lines
  (starting with #).

Changed

• Rules precedence logic changed from "rule with more options wins" to "rule that comes first wins"
  and now quick rules are supported.
• Firewall::resolve_packet now accepts a FirewallDirection by value instead of by reference.
• Renamed Firewall::set_policy_in to Firewall::policy_in.
• Renamed Firewall::set_policy_out to Firewall::policy_out.

Initial release of the library.