coredns/middleware/backend.go
Michael Grosser ece3cf8ecf Fix various issues with formatting and typos (#424)
* Fix typos

* Simplify code

* Fix error usage
2016-11-13 14:03:12 +00:00

33 lines
1.2 KiB
Go

package middleware
import (
"github.com/miekg/coredns/middleware/etcd/msg"
"github.com/miekg/coredns/request"
"github.com/miekg/dns"
)
// ServiceBackend defines a (dynamic) backend that returns a slice of service definitions.
type ServiceBackend interface {
// Services communicates with the backend to retrieve the service definition. Exact indicates
// on exact much are that we are allowed to recurs.
Services(state request.Request, exact bool, opt Options) ([]msg.Service, []msg.Service, error)
// Reverse communicates with the backend to retrieve service definition based on a IP address
// instead of a name. I.e. a reverse DNS lookup.
Reverse(state request.Request, exact bool, opt Options) ([]msg.Service, []msg.Service, error)
// Lookup is used to find records else where.
Lookup(state request.Request, name string, typ uint16) (*dns.Msg, error)
// IsNameError return true if err indicated a record not found condition
IsNameError(err error) bool
// Debug returns a string used when returning debug services.
Debug() string
}
// Options are extra options that can be specified for a lookup.
type Options struct {
Debug string // This is a debug query. A query prefixed with debug.o-o
}