mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
Merge pull request #894 from sanimej/dns
Set Recursion Available bit in query responses.
This commit is contained in:
commit
577159e0cb
1 changed files with 7 additions and 1 deletions
|
@ -35,7 +35,7 @@ const (
|
|||
dnsPort = "53"
|
||||
ptrIPv4domain = ".in-addr.arpa."
|
||||
ptrIPv6domain = ".ip6.arpa."
|
||||
respTTL = 1800
|
||||
respTTL = 600
|
||||
maxExtDNS = 3 //max number of external servers to try
|
||||
)
|
||||
|
||||
|
@ -147,6 +147,10 @@ func (r *resolver) ResolverOptions() []string {
|
|||
return []string{"ndots:0"}
|
||||
}
|
||||
|
||||
func setCommonFlags(msg *dns.Msg) {
|
||||
msg.RecursionAvailable = true
|
||||
}
|
||||
|
||||
func (r *resolver) handleIPv4Query(name string, query *dns.Msg) (*dns.Msg, error) {
|
||||
addr := r.sb.ResolveName(name)
|
||||
if addr == nil {
|
||||
|
@ -157,6 +161,7 @@ func (r *resolver) handleIPv4Query(name string, query *dns.Msg) (*dns.Msg, error
|
|||
|
||||
resp := new(dns.Msg)
|
||||
resp.SetReply(query)
|
||||
setCommonFlags(resp)
|
||||
|
||||
rr := new(dns.A)
|
||||
rr.Hdr = dns.RR_Header{Name: name, Rrtype: dns.TypeA, Class: dns.ClassINET, Ttl: respTTL}
|
||||
|
@ -186,6 +191,7 @@ func (r *resolver) handlePTRQuery(ptr string, query *dns.Msg) (*dns.Msg, error)
|
|||
|
||||
resp := new(dns.Msg)
|
||||
resp.SetReply(query)
|
||||
setCommonFlags(resp)
|
||||
|
||||
rr := new(dns.PTR)
|
||||
rr.Hdr = dns.RR_Header{Name: ptr, Rrtype: dns.TypePTR, Class: dns.ClassINET, Ttl: respTTL}
|
||||
|
|
Loading…
Reference in a new issue