Add AWG module

client/android/awg/src/main/kotlin/AwgConfig.kt

@@ -0,0 +1,115 @@
+package org.amnezia.vpn.protocol.awg
+
+import org.amnezia.vpn.protocol.BadConfigException
+import org.amnezia.vpn.protocol.wireguard.WireguardConfig
+
+class AwgConfig private constructor(
+    wireguardConfigBuilder: WireguardConfig.Builder,
+    val jc: Int,
+    val jmin: Int,
+    val jmax: Int,
+    val s1: Int,
+    val s2: Int,
+    val h1: Long,
+    val h2: Long,
+    val h3: Long,
+    val h4: Long
+) : WireguardConfig(wireguardConfigBuilder) {
+
+    private constructor(builder: Builder) : this(
+        builder.wireguardConfigBuilder,
+        builder.jc,
+        builder.jmin,
+        builder.jmax,
+        builder.s1,
+        builder.s2,
+        builder.h1,
+        builder.h2,
+        builder.h3,
+        builder.h4
+    )
+
+    override fun toWgUserspaceString(): String = with(StringBuilder()) {
+        append(super.toWgUserspaceString())
+        appendLine("jc=$jc")
+        appendLine("jmin=$jmin")
+        appendLine("jmax=$jmax")
+        appendLine("s1=$s1")
+        appendLine("s2=$s2")
+        appendLine("h1=$h1")
+        appendLine("h2=$h2")
+        appendLine("h3=$h3")
+        appendLine("h4=$h4")
+        return this.toString()
+    }
+
+    class Builder {
+        internal lateinit var wireguardConfigBuilder: WireguardConfig.Builder
+            private set
+
+        private var _jc: Int? = null
+        internal var jc: Int
+            get() = _jc ?: throw BadConfigException("AWG: parameter jc is undefined")
+            private set(value) { _jc = value}
+
+        private var _jmin: Int? = null
+        internal var jmin: Int
+            get() = _jmin ?: throw BadConfigException("AWG: parameter jmin is undefined")
+            private set(value) { _jmin = value}
+
+        private var _jmax: Int? = null
+        internal var jmax: Int
+            get() = _jmax ?: throw BadConfigException("AWG: parameter jmax is undefined")
+            private set(value) { _jmax = value}
+
+        private var _s1: Int? = null
+        internal var s1: Int
+            get() = _s1 ?: throw BadConfigException("AWG: parameter s1 is undefined")
+            private set(value) { _s1 = value}
+
+        private var _s2: Int? = null
+        internal var s2: Int
+            get() = _s2 ?: throw BadConfigException("AWG: parameter s2 is undefined")
+            private set(value) { _s2 = value}
+
+        private var _h1: Long? = null
+        internal var h1: Long
+            get() = _h1 ?: throw BadConfigException("AWG: parameter h1 is undefined")
+            private set(value) { _h1 = value}
+
+        private var _h2: Long? = null
+        internal var h2: Long
+            get() = _h2 ?: throw BadConfigException("AWG: parameter h2 is undefined")
+            private set(value) { _h2 = value}
+
+        private var _h3: Long? = null
+        internal var h3: Long
+            get() = _h3 ?: throw BadConfigException("AWG: parameter h3 is undefined")
+            private set(value) { _h3 = value}
+
+        private var _h4: Long? = null
+        internal var h4: Long
+            get() = _h4 ?: throw BadConfigException("AWG: parameter h4 is undefined")
+            private set(value) { _h4 = value}
+
+        fun configureWireguard(block: WireguardConfig.Builder.() -> Unit) = apply {
+            wireguardConfigBuilder = WireguardConfig.Builder().apply(block)
+        }
+
+        fun setJc(jc: Int) = apply { this.jc = jc }
+        fun setJmin(jmin: Int) = apply { this.jmin = jmin }
+        fun setJmax(jmax: Int) = apply { this.jmax = jmax }
+        fun setS1(s1: Int) = apply { this.s1 = s1 }
+        fun setS2(s2: Int) = apply { this.s2 = s2 }
+        fun setH1(h1: Long) = apply { this.h1 = h1 }
+        fun setH2(h2: Long) = apply { this.h2 = h2 }
+        fun setH3(h3: Long) = apply { this.h3 = h3 }
+        fun setH4(h4: Long) = apply { this.h4 = h4 }
+
+        fun build(): AwgConfig = AwgConfig(this)
+    }
+
+    companion object {
+        inline fun build(block: Builder.() -> Unit): AwgConfig = Builder().apply(block).build()
+    }
+}