diff options
Diffstat (limited to 'src/main/java/io/trygvis/rules/network')
-rw-r--r-- | src/main/java/io/trygvis/rules/network/Ipv4Address.java | 35 | ||||
-rw-r--r-- | src/main/java/io/trygvis/rules/network/Ipv4Cidr.java | 40 |
2 files changed, 75 insertions, 0 deletions
diff --git a/src/main/java/io/trygvis/rules/network/Ipv4Address.java b/src/main/java/io/trygvis/rules/network/Ipv4Address.java new file mode 100644 index 0000000..071bca9 --- /dev/null +++ b/src/main/java/io/trygvis/rules/network/Ipv4Address.java @@ -0,0 +1,35 @@ +package io.trygvis.rules.network; + +import com.fasterxml.jackson.core.JsonGenerator; +import com.fasterxml.jackson.databind.JsonSerializer; +import com.fasterxml.jackson.databind.SerializerProvider; +import com.fasterxml.jackson.databind.annotation.JsonSerialize; + +import java.io.IOException; + +@JsonSerialize(using = Ipv4Address.Serializer.class) +public class Ipv4Address { + public final int address; + + public Ipv4Address(int address) { + this.address = address; + } + + @Override + public String toString() { + return "%d.%d.%d.%d".formatted( + address >> 24 & 0xff, + address >> 16 & 0xff, + address >> 8 & 0xff, + address & 0xff); + } + + public static class Serializer extends JsonSerializer<Ipv4Address> { + @Override + public void serialize(Ipv4Address value, JsonGenerator gen, SerializerProvider serializers) throws IOException { + gen.writeStartObject(); + gen.writeObjectField("value", value.toString()); + gen.writeEndObject(); + } + } +} diff --git a/src/main/java/io/trygvis/rules/network/Ipv4Cidr.java b/src/main/java/io/trygvis/rules/network/Ipv4Cidr.java new file mode 100644 index 0000000..34b3a0b --- /dev/null +++ b/src/main/java/io/trygvis/rules/network/Ipv4Cidr.java @@ -0,0 +1,40 @@ +package io.trygvis.rules.network; + +import java.net.InetAddress; +import java.net.UnknownHostException; +import java.util.ArrayList; +import java.util.Collection; + +public class Ipv4Cidr { + public final int network; + public final int netmask; + public final int size; + public final int bits; + + public Ipv4Cidr(int network, int netmask, int size, int bits) { + this.network = network; + this.netmask = netmask; + this.size = size; + this.bits = bits; + } + + @Override + public String toString() { + return "%d.%d.%d.%d/%d".formatted( + network >> 24 & 0xff, + network >> 16 & 0xff, + network >> 8 & 0xff, + network & 0xff, + bits); + } + + public Collection<Ipv4Address> addresses() { + var end = network + size; + var addresses = new ArrayList<Ipv4Address>(size); + for (int address = network; address < end; address++) { + addresses.add(new Ipv4Address(address)); + } + + return addresses; + } +} |