38 lines
995 B
Go
38 lines
995 B
Go
package dns
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// The following values must be put in wireformat, so that
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// the MAC can be calculated
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// RFC 2845, section 3.4.2. TSIG Variables
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type tsig_generation_fmt struct {
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// From RR_HEADER
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Name string "domain-name"
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Class uint16
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Ttl uint32
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// Rdata of the TSIG
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Algorithm string "domain-name"
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TimeSigned [3]uint16
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Fudge uint16
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// MACSize, MAC and OrigId excluded
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Error uint16
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OtherLen uint16
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OtherData string
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}
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func (rr *RR_TSIG) GenerateMAC() bool {
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buf := make([]byte, 2048) // TODO(mg) bufsize!
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tsigbuf := new(tsig_generation_fmt)
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// Fill the struct and generate the wiredata
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tsigbuf.Name = rr.Header().Name
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tsigbuf.Class = rr.Header().Class
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tsigbuf.Ttl = rr.Header().Ttl
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tsigbuf.Algorithm = rr.Algorithm
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tsigbuf.TimeSigned = rr.TimeSigned
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tsigbuf.Fudge = rr.Fudge
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tsigbuf.Error = rr.Error
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tsigbuf.OtherLen = rr.OtherLen
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tsigbuf.OtherData = rr.OtherData
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packStruct(tsigbuf, buf, 0)
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return true
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}
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