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Improve checksum usages

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世界 2025-08-27 11:03:17 +08:00
parent f9bbb15bfb
commit adc106bcf6
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9 changed files with 23 additions and 45 deletions
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4
internal/gtcpip/header/ipv4.go
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@ -479,7 +479,9 @@ func (b IPv4) SetDestinationAddress(addr tcpip.Address) {
// CalculateChecksum calculates the checksum of the IPv4 header.
func (b IPv4) CalculateChecksum() uint16 {
return checksum.Checksum(b[:b.HeaderLength()], 0)
xsum0 := checksum.Checksum(b[:xsum], 0)
xsum0 = checksum.Checksum(b[xsum+2:b.HeaderLength()], xsum0)
return xsum0
}
// Encode encodes all the fields of the IPv4 header.