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Add 0.0.0.0 as local multicast source address

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Daniel
2023-08-01 16:15:52 +02:00
parent 32eaadd2bf
commit aed7155359
1 changed files with 9 additions and 6 deletions
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15
network/netutils/ip.go
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@@ -28,21 +28,24 @@ func GetIPScope(ip net.IP) IPScope { //nolint:gocognit
if ip4 := ip.To4(); ip4 != nil { if ip4 := ip.To4(); ip4 != nil {
// IPv4 // IPv4
switch { switch {
case ip4[0] == 0 && ip4[1] == 0 && ip4[2] == 0 && ip4[3] == 0:
// 0.0.0.0/32
return LocalMulticast // Used as source for L2 based protocols with no L3 addressing.
case ip4[0] == 0: case ip4[0] == 0:
// 0.0.0.0/8 // 0.0.0.0/8
return Invalid return Invalid
case ip4[0] == 127:
// 127.0.0.0/8 (RFC1918)
return HostLocal
case ip4[0] == 169 && ip4[1] == 254:
// 169.254.0.0/16 (RFC3927)
return LinkLocal
case ip4[0] == 10: case ip4[0] == 10:
// 10.0.0.0/8 (RFC1918) // 10.0.0.0/8 (RFC1918)
return SiteLocal return SiteLocal
case ip4[0] == 100 && ip4[1]&0b11000000 == 64: case ip4[0] == 100 && ip4[1]&0b11000000 == 64:
// 100.64.0.0/10 (RFC6598) // 100.64.0.0/10 (RFC6598)
return SiteLocal return SiteLocal
case ip4[0] == 127:
// 127.0.0.0/8 (RFC1918)
return HostLocal
case ip4[0] == 169 && ip4[1] == 254:
// 169.254.0.0/16 (RFC3927)
return LinkLocal
case ip4[0] == 172 && ip4[1]&0b11110000 == 16: case ip4[0] == 172 && ip4[1]&0b11110000 == 16:
// 172.16.0.0/12 (RFC1918) // 172.16.0.0/12 (RFC1918)
return SiteLocal return SiteLocal