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middleware/file: Support delegations (#124)

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Return a delegation when seeing one while traversing the tree in
search of an answer.

Put the SOA and NS record in the zone.Apex as these are to be handled
somewhat special.

Lowercase record on insert to make compares easier. This lowercases
all RR that have domain names in their rdata as well.
This commit is contained in:
Miek Gieben
2016-04-16 16:16:52 +01:00
parent f783634174
commit e294c95582
14 changed files with 288 additions and 70 deletions
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13
middleware/file/secondary.go
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@@ -55,8 +55,7 @@ Transfer:
}
z.Tree = z1.Tree
z.SOA = z1.SOA
z.SIG = z1.SIG
z.Apex = z1.Apex
*z.Expired = false
log.Printf("[INFO] Transferred: %s from %s", z.origin, tr)
return nil
@@ -91,7 +90,7 @@ Transfer:
if serial == -1 {
return false, Err
}
return less(z.SOA.Serial, uint32(serial)), Err
return less(z.Apex.SOA.Serial, uint32(serial)), Err
}
// less return true of a is smaller than b when taking RFC 1982 serial arithmetic into account.
@@ -108,15 +107,15 @@ func less(a, b uint32) bool {
// will be marked expired.
func (z *Zone) Update() error {
// If we don't have a SOA, we don't have a zone, wait for it to appear.
for z.SOA == nil {
for z.Apex.SOA == nil {
time.Sleep(1 * time.Second)
}
retryActive := false
Restart:
refresh := time.Second * time.Duration(z.SOA.Refresh)
retry := time.Second * time.Duration(z.SOA.Retry)
expire := time.Second * time.Duration(z.SOA.Expire)
refresh := time.Second * time.Duration(z.Apex.SOA.Refresh)
retry := time.Second * time.Duration(z.Apex.SOA.Retry)
expire := time.Second * time.Duration(z.Apex.SOA.Expire)
if refresh < time.Hour {
refresh = time.Hour