This pull request adds periodic NAT Type measurement support to snowflake. The default behaviour is unmodified. To enable this periodic NAT Type measurement set
nat-type-measurement-interval-second to a non-zero value.
Things to look at:
- Copyright. This pull request includes ported infrastructure codes from V2Ray for managed periodic tasks. If reusing MIT code is not allowed, this code needs to be rewritten.
- No exhaustive test. The network environment cannot be easily modified. Lookup Table is not tested.
- Flag name too long. There should be a shorter name for
nat-type-measurement-interval-secondthat contains the same or more information.
- Change of default behaviour. If necessary, flag
nat-type-measurement-interval-secondcan have a default value of 86400 to recheck every day by default.