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wgengine/packet: fix minor lint errors.

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Signed-off-by: David Anderson <dave@natulte.net>
This commit is contained in:
David Anderson 2020-02-11 00:01:14 -08:00
parent 8a339a6819
commit 43becc4334
1 changed files with 3 additions and 3 deletions
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6
wgengine/packet/packet.go
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@ -77,7 +77,7 @@ func (ipp *IP) UnmarshalJSON(b []byte) error {
ip := net.ParseIP(host) ip := net.ParseIP(host)
if ip != nil && ip.IsUnspecified() { if ip != nil && ip.IsUnspecified() {
// For clarity, reject 0.0.0.0 as an input // For clarity, reject 0.0.0.0 as an input
return fmt.Errorf("Ports=%#v: to allow all IP addresses, use *:port, not 0.0.0.0:port", host) return fmt.Errorf("ports=%#v: to allow all IP addresses, use *:port, not 0.0.0.0:port", host)
} else if ip == nil && host == "*" { } else if ip == nil && host == "*" {
// User explicitly requested wildcard dst ip // User explicitly requested wildcard dst ip
*ipp = IPAny *ipp = IPAny
@ -86,7 +86,7 @@ func (ipp *IP) UnmarshalJSON(b []byte) error {
ip = ip.To4() ip = ip.To4()
} }
if ip == nil || len(ip) != 4 { if ip == nil || len(ip) != 4 {
return fmt.Errorf("Ports=%#v: invalid IPv4 address", host) return fmt.Errorf("ports=%#v: invalid IPv4 address", host)
} }
*ipp = NewIP(ip) *ipp = NewIP(ip)
} }
@ -173,7 +173,7 @@ func GenICMP(srcIP, dstIP IP, ipid uint16, icmpType uint8, icmpCode uint8, paylo
out[20] = icmpType out[20] = icmpType
out[21] = icmpCode out[21] = icmpCode
//out[22:24] = 0x00 // blank ICMP checksum //out[22:24] = 0x00 // blank ICMP checksum
copy(out[24:len(out)], payload) copy(out[24:], payload)
binary.BigEndian.PutUint16(out[10:12], ipChecksum(out[0:20])) binary.BigEndian.PutUint16(out[10:12], ipChecksum(out[0:20]))
binary.BigEndian.PutUint16(out[22:24], ipChecksum(out)) binary.BigEndian.PutUint16(out[22:24], ipChecksum(out))