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44
vendor/github.com/miekg/dns/tsig.go
generated
vendored
44
vendor/github.com/miekg/dns/tsig.go
generated
vendored
@@ -74,6 +74,24 @@ func (key tsigHMACProvider) Verify(msg []byte, t *TSIG) error {
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return nil
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}
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type tsigSecretProvider map[string]string
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func (ts tsigSecretProvider) Generate(msg []byte, t *TSIG) ([]byte, error) {
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key, ok := ts[t.Hdr.Name]
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if !ok {
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return nil, ErrSecret
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}
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return tsigHMACProvider(key).Generate(msg, t)
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}
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func (ts tsigSecretProvider) Verify(msg []byte, t *TSIG) error {
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key, ok := ts[t.Hdr.Name]
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if !ok {
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return ErrSecret
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}
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return tsigHMACProvider(key).Verify(msg, t)
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}
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// TSIG is the RR the holds the transaction signature of a message.
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// See RFC 2845 and RFC 4635.
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type TSIG struct {
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@@ -140,18 +158,17 @@ type timerWireFmt struct {
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}
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// TsigGenerate fills out the TSIG record attached to the message.
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// The message should contain
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// a "stub" TSIG RR with the algorithm, key name (owner name of the RR),
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// time fudge (defaults to 300 seconds) and the current time
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// The TSIG MAC is saved in that Tsig RR.
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// When TsigGenerate is called for the first time requestMAC is set to the empty string and
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// timersOnly is false.
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// If something goes wrong an error is returned, otherwise it is nil.
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// The message should contain a "stub" TSIG RR with the algorithm, key name
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// (owner name of the RR), time fudge (defaults to 300 seconds) and the current
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// time The TSIG MAC is saved in that Tsig RR. When TsigGenerate is called for
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// the first time requestMAC should be set to the empty string and timersOnly to
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// false.
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func TsigGenerate(m *Msg, secret, requestMAC string, timersOnly bool) ([]byte, string, error) {
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return tsigGenerateProvider(m, tsigHMACProvider(secret), requestMAC, timersOnly)
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return TsigGenerateWithProvider(m, tsigHMACProvider(secret), requestMAC, timersOnly)
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}
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func tsigGenerateProvider(m *Msg, provider TsigProvider, requestMAC string, timersOnly bool) ([]byte, string, error) {
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// TsigGenerateWithProvider is similar to TsigGenerate, but allows for a custom TsigProvider.
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func TsigGenerateWithProvider(m *Msg, provider TsigProvider, requestMAC string, timersOnly bool) ([]byte, string, error) {
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if m.IsTsig() == nil {
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panic("dns: TSIG not last RR in additional")
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}
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@@ -198,14 +215,15 @@ func tsigGenerateProvider(m *Msg, provider TsigProvider, requestMAC string, time
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return mbuf, t.MAC, nil
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}
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// TsigVerify verifies the TSIG on a message.
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// If the signature does not validate err contains the
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// error, otherwise it is nil.
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// TsigVerify verifies the TSIG on a message. If the signature does not
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// validate the returned error contains the cause. If the signature is OK, the
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// error is nil.
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func TsigVerify(msg []byte, secret, requestMAC string, timersOnly bool) error {
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return tsigVerify(msg, tsigHMACProvider(secret), requestMAC, timersOnly, uint64(time.Now().Unix()))
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}
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func tsigVerifyProvider(msg []byte, provider TsigProvider, requestMAC string, timersOnly bool) error {
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// TsigVerifyWithProvider is similar to TsigVerify, but allows for a custom TsigProvider.
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func TsigVerifyWithProvider(msg []byte, provider TsigProvider, requestMAC string, timersOnly bool) error {
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return tsigVerify(msg, provider, requestMAC, timersOnly, uint64(time.Now().Unix()))
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}
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