* Add local_addr configuration for doh-server
This commit adds a `local_addr` string value to `doh-server.conf`, specifying the IP address and port from which outgoing calls to upstream DNS resolvers should originate. This value is set as the `udpClient`'s and `tcpClient`'s `Dialer.LocalAddr` when initializing a `NewServer`. If the value is left empty in `doh-server.conf`, it defaults to the first `listen` address (which in turn defaults to `"127.0.0.1:8053"`).
One use case for this would be if `doh-server` is proxying requests to a local DNS resolver (e.g. `unbound` or Pi-hole). Up to version 2.0.0, all DNS queries from `doh-server` are sent from `127.0.0.1` (even if the `listen` address is set to a different loopback IP address), making it hard to distinguish them from all other local DNS queries from the same machine in the query logs.
* Revert defaulting of local_addr to listen address
This commit reverts to the existing behavior when `conf.LocalAddr == ""`, i.e. letting `dns.Client` instantiate its own `Dialer` with the default local address.
* Fixup comment in configuration file
* Log errors from Dialer instantiation (e.g. if LocalAddr port is missing)
* Fixup other comment in configuration file
* Return error and log fatal
* Add upstream selector, there are two selector now:
- random selector
- weight random selector
random selector will choose upstream at random; weight random selector will choose upstream at random with weight
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Rewrite config and config file example, prepare for weight round robbin selector
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Replace bad implement of weight random selector with weight round robbin selector, the algorithm is nginx weight round robbin like
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Use new config module
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Disable deprecated DualStack set
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Fix typo
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Optimize upstreamSelector judge
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Fix typo
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Add config timeout unit tips
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Set wrr http client timeout to replace http request timeout
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Add weight value range
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Add a line ending for .gitignore
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Optimize config file style
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Modify Weight type to int32
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Add upstreamError
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Rewrite Selector interface and wrr implement
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Use http module predefined constant to judge req.response.StatusCode
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Use Selector.ReportUpstreamError to report upstream error for evaluation loop in real time
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Make client selector field private
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Replace config file url to URL
Add miss space for 'weight= 50'
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Rewrite Selector.ReportUpstreamError to Selector.ReportUpstreamStatus, report upstream ok in real time
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Fix checkIETFResponse: if upstream OK, won't increase weight
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Fix typo
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Rewrite wrr evaluation, concurrent check upstream and reduce interval to 15s
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Add lvs wrr selector config
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Add DebugReporter interface, when client verbose is true and the selector implements it, will report all upstream weights every 15s
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Rename WeightRoundRobinSelector to NginxWRRSelector
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Add LVSSelector
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Remove useless log
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Add upstream selector, there are two selector now:
- random selector
- weight random selector
random selector will choose upstream at random; weight random selector will choose upstream at random with weight
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Rewrite config and config file example, prepare for weight round robbin selector
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Replace bad implement of weight random selector with weight round robbin selector, the algorithm is nginx weight round robbin like
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Use new config module
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Disable deprecated DualStack set
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Fix typo
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Optimize upstreamSelector judge
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Fix typo
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Add config timeout unit tips
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Set wrr http client timeout to replace http request timeout
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Add weight value range
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Add a line ending for .gitignore
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Optimize config file style
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Modify Weight type to int32
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Add upstreamError
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Rewrite Selector interface and wrr implement
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Use http module predefined constant to judge req.response.StatusCode
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Use Selector.ReportUpstreamError to report upstream error for evaluation loop in real time
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Make client selector field private
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Replace config file url to URL
Add miss space for 'weight= 50'
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Rewrite Selector.ReportUpstreamError to Selector.ReportUpstreamStatus, report upstream ok in real time
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Fix checkIETFResponse: if upstream OK, won't increase weight
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Fix typo
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
