]> git.basschouten.com Git - openhab-addons.git/commitdiff
[dsmr] Fix payload length calculation for Smarty meters (#11328)
authorHilbrand Bouwkamp <hilbrand@h72.nl>
Thu, 30 Sep 2021 20:59:54 +0000 (22:59 +0200)
committerGitHub <noreply@github.com>
Thu, 30 Sep 2021 20:59:54 +0000 (22:59 +0200)
Fixes #10932
Supersedes #10933 and adds a unit test.

Also-by: Alexander Hotz <alex.hotz@gmail.com>
Signed-off-by: Hilbrand Bouwkamp <hilbrand@h72.nl>
bundles/org.openhab.binding.dsmr/src/main/java/org/openhab/binding/dsmr/internal/device/SmartyDecrypter.java
bundles/org.openhab.binding.dsmr/src/test/java/org/openhab/binding/dsmr/internal/device/SmartyDecrypterTest.java
bundles/org.openhab.binding.dsmr/src/test/resources/org/openhab/binding/dsmr/internal/smarty_long.telegram [new file with mode: 0644]

index 1b9f9cf79d43b0a8a3e57f57399ce07f81919a4c..934e32efc1389106c5252781d18e11ca5bc6827b 100644 (file)
@@ -79,7 +79,7 @@ public class SmartyDecrypter implements TelegramParser {
     private int ivLength;
     private int dataLength;
     private boolean lenientMode;
-    private P1TelegramListener telegramListener;
+    private final P1TelegramListener telegramListener;
 
     /**
      * Constructor.
@@ -140,7 +140,7 @@ public class SmartyDecrypter implements TelegramParser {
                 break;
             case READ_PAYLOAD_LENGTH:
                 dataLength <<= 8;
-                dataLength |= rawInput;
+                dataLength |= rawInput & 0xFF;
                 if (currentBytePosition >= changeToNextStateAt) {
                     state = State.READ_SEPARATOR_30;
                     changeToNextStateAt++;
index a73d4a43cb7b128dc021d8bbf69cd63af31c9a80..0b183c1869ee843fa32ff81a9c8736828ffc3bce 100644 (file)
@@ -12,7 +12,8 @@
  */
 package org.openhab.binding.dsmr.internal.device;
 
-import static org.hamcrest.CoreMatchers.*;
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.is;
 import static org.hamcrest.MatcherAssert.assertThat;
 
 import java.nio.charset.StandardCharsets;
@@ -33,62 +34,81 @@ import org.openhab.binding.dsmr.internal.device.p1telegram.P1TelegramParser;
 public class SmartyDecrypterTest {
 
     private static final String KEY = "D491470F47126332B07D1923B3504188";
-    private static final int[] TELEGRAM = new int[] { 0xDB, 0x08, 0x53, 0x41, 0x47, 0x67, 0x70, 0x01, 0xBD, 0x54, 0x82,
-            0x02, 0x7A, 0x30, 0x00, 0x05, 0xA8, 0xE3, 0x80, 0x6E, 0xE6, 0xE6, 0x39, 0x27, 0x4C, 0x7B, 0xC5, 0x70, 0x95,
-            0xF8, 0x72, 0xB0, 0x8D, 0xDE, 0x62, 0x1F, 0xB7, 0x4E, 0xE8, 0x1E, 0x5E, 0xBE, 0x34, 0x2C, 0x93, 0xD8, 0xE7,
-            0x37, 0x81, 0xFB, 0x2A, 0x1E, 0xB8, 0x71, 0x00, 0x74, 0xA5, 0x4F, 0xC5, 0x7A, 0xA7, 0xD1, 0xD9, 0x92, 0x36,
-            0xC4, 0x2E, 0x2E, 0xC0, 0x1A, 0x03, 0x24, 0xEF, 0xC7, 0xF0, 0x2E, 0x3B, 0xA2, 0xFA, 0x43, 0x19, 0x6C, 0xA6,
-            0x03, 0x83, 0x8A, 0xB8, 0x32, 0x2D, 0xFF, 0xA8, 0x3F, 0x7E, 0x83, 0x93, 0x2E, 0x60, 0x07, 0x40, 0x6B, 0x11,
-            0x2B, 0x41, 0x74, 0x5F, 0x38, 0x80, 0x56, 0x46, 0xD5, 0x3F, 0xEA, 0x7A, 0x02, 0x9F, 0xA7, 0x9C, 0x36, 0xD9,
-            0xD7, 0x77, 0xDA, 0x8B, 0x5A, 0x03, 0xED, 0x3E, 0xC6, 0xE4, 0x85, 0xDE, 0xC0, 0xC9, 0x8D, 0x7D, 0x53, 0xC0,
-            0xBD, 0x17, 0x5B, 0x22, 0x8E, 0x01, 0xF4, 0x66, 0xD9, 0x84, 0x37, 0x77, 0x80, 0x85, 0x03, 0xD6, 0x30, 0x15,
-            0x8C, 0x82, 0x36, 0xD8, 0x68, 0x08, 0x8E, 0xB1, 0x39, 0x77, 0xBD, 0xFC, 0x47, 0x43, 0x67, 0xE5, 0x57, 0x13,
-            0x6F, 0xEB, 0x6D, 0x53, 0x7F, 0x18, 0x30, 0x44, 0x84, 0xA0, 0x14, 0xB4, 0x90, 0x99, 0xA6, 0x3C, 0x18, 0xD4,
-            0x30, 0x3A, 0x4C, 0x53, 0x85, 0x3A, 0x0C, 0xA8, 0xC5, 0xB0, 0xE3, 0xE8, 0x05, 0xBF, 0xD8, 0x42, 0x54, 0x10,
-            0xFA, 0xB5, 0x22, 0xB3, 0x5A, 0x8F, 0x25, 0x8B, 0x57, 0xBB, 0x1E, 0x97, 0xE2, 0x48, 0x9B, 0x6F, 0x37, 0x07,
-            0x17, 0x53, 0xAF, 0xFB, 0xB4, 0xEE, 0xBC, 0xA5, 0x02, 0xEE, 0xA5, 0x92, 0xB8, 0x80, 0x85, 0xAE, 0x15, 0x5B,
-            0xCE, 0xA8, 0xF7, 0x32, 0xD6, 0xB0, 0x11, 0x5B, 0xB9, 0xCE, 0xD7, 0x6B, 0xE5, 0xB8, 0x93, 0xB2, 0xA7, 0xEF,
-            0xC8, 0x16, 0x3C, 0x17, 0x1E, 0x77, 0xC3, 0xD2, 0x9A, 0x72, 0xB7, 0x47, 0x8E, 0xD6, 0xDF, 0xE2, 0xC4, 0x8B,
-            0xF3, 0xF9, 0xD8, 0xF8, 0x95, 0xCA, 0x1C, 0xB4, 0x2E, 0xAA, 0xC4, 0xCB, 0x21, 0xD6, 0xEA, 0xB5, 0x1E, 0x77,
-            0xE4, 0xD6, 0x02, 0x9D, 0x78, 0x84, 0x27, 0xDD, 0x5B, 0xFC, 0x46, 0xBD, 0xD3, 0xE8, 0xA3, 0x2D, 0xBB, 0x6F,
-            0x93, 0xB4, 0x84, 0x2B, 0x07, 0x3E, 0x9B, 0x6F, 0xE6, 0xE5, 0xDF, 0xC0, 0x58, 0xB5, 0xF4, 0x54, 0xAA, 0x3E,
-            0xF1, 0x62, 0xBD, 0xF9, 0x3C, 0xB1, 0xE0, 0xC4, 0x52, 0xDB, 0xB2, 0xBE, 0x4C, 0xB4, 0xC6, 0x7D, 0x16, 0x9E,
-            0x2A, 0x30, 0x61, 0x8F, 0xA2, 0x16, 0x54, 0x41, 0xB6, 0xD3, 0xC2, 0x2F, 0x1C, 0x36, 0x27, 0xE3, 0x5F, 0xFF,
-            0xCF, 0x9F, 0x19, 0x47, 0xD7, 0xA6, 0xAE, 0x94, 0x2F, 0xC2, 0x1E, 0x24, 0x6F, 0x0E, 0xFC, 0x45, 0x6A, 0x78,
-            0x89, 0xC9, 0x61, 0xC9, 0x3E, 0xA0, 0x89, 0xEE, 0xF6, 0xD1, 0xA4, 0x40, 0x56, 0xBA, 0xAA, 0xB3, 0x52, 0xCB,
-            0xEA, 0x7D, 0x7E, 0x20, 0x67, 0x57, 0xAF, 0x0D, 0x42, 0x70, 0x64, 0xB0, 0x58, 0xD5, 0x72, 0x35, 0xA7, 0x8F,
-            0x8D, 0xB9, 0x1C, 0xE4, 0xD6, 0x0A, 0x3C, 0x6B, 0xAB, 0xD9, 0x9A, 0x61, 0x16, 0x9B, 0x17, 0x2F, 0x24, 0x14,
-            0xF5, 0x65, 0xBD, 0xE0, 0x23, 0x96, 0x54, 0xEA, 0xC7, 0x75, 0x52, 0xFB, 0xCC, 0x2A, 0x2F, 0xA1, 0x02, 0xD7,
-            0xCD, 0x00, 0x3D, 0xDB, 0xEB, 0x9C, 0x1F, 0x81, 0x1D, 0xBC, 0x69, 0x53, 0x76, 0x33, 0x6E, 0x2E, 0x9D, 0x6C,
-            0xFC, 0x73, 0xFC, 0xB4, 0xA2, 0x94, 0x46, 0xBD, 0x7C, 0xE3, 0x17, 0x0E, 0x58, 0x56, 0x76, 0x6B, 0x25, 0xE8,
-            0x20, 0x49, 0xEE, 0x55, 0x08, 0xEC, 0x18, 0x16, 0x68, 0x5F, 0x1D, 0xCE, 0xC2, 0x38, 0x19, 0x12, 0x16, 0xDF,
-            0xFB, 0xA0, 0x64, 0x7D, 0x32, 0xA1, 0x55, 0x9D, 0x99, 0x64, 0x0A, 0x15, 0xF2, 0x4A, 0xB0, 0x21, 0x72, 0xDB,
-            0x3D, 0x56, 0x44, 0x54, 0xE7, 0xA0, 0x34, 0x6C, 0x09, 0x93, 0x99, 0xB8, 0x77, 0x0A, 0x9B, 0xDA, 0xA6, 0x19,
-            0xC7, 0xC5, 0x23, 0x05, 0x26, 0xD6, 0xB8, 0x04, 0x99, 0xA0, 0xEE, 0x0C, 0xD4, 0xFC, 0x46, 0xA6, 0x77, 0xAF,
-            0x68, 0xEF, 0x4D, 0xEE, 0x9E, 0x76, 0xB7, 0x8A, 0xC8, 0xA0, 0x4F, 0x43, 0x1D, 0xB3, 0x98, 0x6F, 0xCF, 0xD4,
-            0x5E, 0xE1, 0xF1, 0x07, 0x99, 0xAF, 0x0B, 0x79, 0x4A, 0x41, 0x03, 0x73, 0x5D, 0x6D, 0xDA, 0x38, 0x29, 0x17,
-            0x3F, 0x80, 0xF1, 0x38, 0xA5, 0x30, 0x1A, 0xFD, 0xF1, 0xDB, 0x87, 0x74, 0xF0, 0xC4, 0x0E, 0x6E, 0x71, 0x26,
-            0x4B, 0x33, 0x4A, 0x94, 0x3F, 0xC1, 0x05, 0x52, 0xB0, 0x75, 0x2F, 0x3A, 0x0D, 0x7F, 0xD8, 0x04, 0x58, 0x59,
-            0x54, 0x08, 0xF2, 0x85, 0x0F, 0x17, };
+    private static final int[] TELEGRAM = new int[] {
+            // Start byte
+            0xDB,
+            // System title length
+            0x08,
+            // System title
+            0x53, 0x41, 0x47, 0x67, 0x70, 0x01, 0xBD, 0x54,
+            // Undocumented byte
+            0x82,
+            // Length of the subsequent bytes
+            0x02, 0xBA,
+            // Undocumented byte
+            0x30,
+            // Frame Counter
+            0x00, 0x05, 0xA8, 0xE3,
+            // Cypher text
+            0x80, 0x6E, 0xE6, 0xE6, 0x39, 0x27, 0x4C, 0x7B, 0xC5, 0x70, 0x95, 0xF8, 0x72, 0xB0, 0x8D, 0xDE, 0x62, 0x1F,
+            0xB7, 0x4E, 0xE8, 0x1E, 0x5E, 0xBE, 0x34, 0x2C, 0x93, 0xD8, 0xE7, 0x37, 0x81, 0xFB, 0x2A, 0x1E, 0xB8, 0x71,
+            0x00, 0x74, 0xA5, 0x4F, 0xC5, 0x7A, 0xA7, 0xD1, 0xD9, 0x92, 0x36, 0xC4, 0x2E, 0x2E, 0xC0, 0x1A, 0x03, 0x24,
+            0xEF, 0xC7, 0xF0, 0x2E, 0x3B, 0xA2, 0xFA, 0x43, 0x19, 0x6C, 0xA6, 0x03, 0x83, 0x8A, 0xB8, 0x32, 0x2D, 0xFF,
+            0xA8, 0x3F, 0x7E, 0x83, 0x93, 0x2E, 0x60, 0x07, 0x40, 0x6B, 0x11, 0x2B, 0x41, 0x74, 0x5F, 0x38, 0x80, 0x56,
+            0x46, 0xD5, 0x3F, 0xEA, 0x7A, 0x02, 0x9F, 0xA7, 0x9C, 0x36, 0xD9, 0xD7, 0x77, 0xDA, 0x8B, 0x46, 0x3D, 0xD3,
+            0x3E, 0xDF, 0xE3, 0x8C, 0xDE, 0xDD, 0xC1, 0x90, 0x7E, 0x48, 0xC0, 0xBE, 0x10, 0x58, 0x22, 0x8B, 0x1F, 0xF1,
+            0x6E, 0xDF, 0x9F, 0x6F, 0x14, 0xDB, 0x9C, 0x3D, 0xEC, 0x32, 0x0C, 0x89, 0x8B, 0x30, 0xC7, 0x64, 0x11, 0x8D,
+            0xA8, 0x3A, 0x77, 0xBE, 0xFF, 0x44, 0x43, 0x7A, 0xE2, 0x56, 0x16, 0x76, 0xB0, 0x09, 0x0A, 0x65, 0x24, 0x09,
+            0x41, 0x9A, 0xA0, 0x1D, 0xB7, 0x8D, 0x95, 0xA1, 0x01, 0x3A, 0xD5, 0x2D, 0x3A, 0x46, 0x52, 0x9B, 0x2C, 0x1A,
+            0xA9, 0xD5, 0xAA, 0xB8, 0xAE, 0x54, 0xFD, 0x86, 0x45, 0x6F, 0x23, 0xFE, 0xB2, 0x79, 0xDE, 0x06, 0x88, 0x10,
+            0xAF, 0x56, 0xBE, 0x1E, 0x9D, 0xE0, 0x56, 0x93, 0x73, 0x29, 0x18, 0x13, 0x56, 0xB5, 0xA0, 0xF2, 0xBF, 0xE0,
+            0xFD, 0x19, 0xD6, 0x85, 0xC8, 0xC2, 0xD8, 0x96, 0x92, 0x31, 0x5D, 0xCD, 0xA8, 0xE5, 0x31, 0xC8, 0xA6, 0x0F,
+            0x5B, 0xA1, 0xD4, 0x8C, 0x0C, 0xFC, 0x85, 0xA9, 0xAD, 0xB2, 0xEE, 0xCA, 0x0E, 0x79, 0x56, 0x51, 0x35, 0x83,
+            0xCB, 0xA7, 0x56, 0xB6, 0x5A, 0x8E, 0xC6, 0x80, 0x9B, 0xD5, 0xA8, 0xC9, 0xE0, 0xC5, 0xF8, 0x9F, 0xC9, 0x02,
+            0xB1, 0x2E, 0xAD, 0xD8, 0xCE, 0x3B, 0x93, 0xAC, 0xE4, 0x5C, 0x36, 0xC0, 0xD1, 0x39, 0x81, 0x65, 0x8E, 0x29,
+            0xC2, 0x42, 0xE5, 0x58, 0xA5, 0xCB, 0xE8, 0xBD, 0x33, 0xBB, 0x68, 0x8A, 0x93, 0xE5, 0x4C, 0x03, 0x03, 0xAB,
+            0x6F, 0xFC, 0xFB, 0xD5, 0xDC, 0x46, 0xAA, 0xED, 0x53, 0xAC, 0x3D, 0xF6, 0x7A, 0xA4, 0xC4, 0x06, 0xAB, 0xA6,
+            0xA3, 0x41, 0xEF, 0x8E, 0xA1, 0x52, 0xAA, 0xCD, 0x7E, 0x10, 0x98, 0x2D, 0x0D, 0x43, 0x8F, 0xBF, 0x08, 0x5E,
+            0x48, 0xB0, 0xD4, 0xF8, 0x0B, 0x1F, 0x2A, 0x3F, 0xE9, 0x5B, 0xE1, 0xCE, 0x88, 0x00, 0x62, 0xED, 0xA7, 0xAD,
+            0x94, 0x25, 0xC6, 0x05, 0x07, 0x56, 0x0C, 0xFF, 0x45, 0x78, 0x79, 0x8E, 0xD7, 0x65, 0xD3, 0x27, 0x85, 0xB4,
+            0xE8, 0xF5, 0xD2, 0xA9, 0x43, 0x4D, 0x99, 0x93, 0xB1, 0x51, 0xCB, 0xF8, 0x74, 0x78, 0x3E, 0x64, 0x4A, 0xB7,
+            0x30, 0x60, 0x70, 0x60, 0x8D, 0x68, 0xD2, 0x6D, 0x2B, 0xAE, 0x84, 0x95, 0xA7, 0x03, 0xFA, 0xD4, 0x0B, 0x24,
+            0x69, 0xB2, 0xE4, 0xA6, 0x69, 0x12, 0xA6, 0x27, 0x2D, 0x3B, 0x0A, 0xFC, 0x60, 0xA1, 0xFE, 0x38, 0x94, 0x4A,
+            0xEA, 0xDF, 0x75, 0x4B, 0xC6, 0xF2, 0x2F, 0x2B, 0x9C, 0x32, 0xD3, 0xD2, 0x1E, 0x34, 0xD8, 0xF7, 0x82, 0x04,
+            0x83, 0x03, 0xBC, 0x71, 0x53, 0x6F, 0x0E, 0x54, 0x2C, 0x99, 0x51, 0xCC, 0x75, 0xE3, 0xAA, 0xAB, 0x95, 0x5A,
+            0xA3, 0x67, 0xE1, 0x09, 0x0E, 0x40, 0x56, 0x6F, 0x56, 0x1F, 0xEA, 0x24, 0x74, 0xDE, 0x5D, 0x13, 0xF2, 0x13,
+            0x16, 0x74, 0x41, 0x06, 0xD1, 0xE1, 0x02, 0x01, 0x0F, 0x16, 0xD5, 0xF2, 0xA6, 0x63, 0x41, 0x0B, 0xBE, 0x4A,
+            0x85, 0x8A, 0x5C, 0x32, 0x0B, 0xEC, 0x4C, 0xA4, 0x28, 0x6C, 0xC5, 0x3C, 0x55, 0x5A, 0x57, 0xE6, 0x84, 0x33,
+            0x57, 0x14, 0x8E, 0x93, 0xB5, 0x7C, 0x12, 0x86, 0xDD, 0xBB, 0x07, 0xDB, 0xDD, 0x3A, 0x38, 0x1C, 0xD6, 0xBC,
+            0x39, 0xA9, 0xA9, 0xF5, 0x12, 0xDF, 0xF6, 0x5E, 0xBD, 0x6E, 0xB5, 0x4B, 0xD5, 0x54, 0xEA, 0xA3, 0x46, 0xB4,
+            0x96, 0xD6, 0xAD, 0x58, 0x45, 0x1B, 0xB2, 0x9B, 0x71, 0xD7, 0xBD, 0x5E, 0xE1, 0xF1, 0x06, 0x99, 0xAF, 0x0B,
+            0x75, 0x4D, 0x41, 0x05, 0x6E, 0x43, 0x76, 0xC2, 0x21, 0x14, 0x37, 0x4E, 0x84, 0xCC, 0x08, 0xAD, 0x2B, 0x04,
+            0xF6, 0xF5, 0xC4, 0x9D, 0x6B, 0xF7, 0xF9, 0x2C, 0x6E, 0x6C, 0x26, 0x5B, 0x4B, 0x55, 0xB7, 0x04, 0xD3, 0x68,
+            0x21, 0xDC, 0x19, 0x2F, 0x3A, 0x90, 0x1C, 0x3E, 0x7C, 0x07, 0x16, 0x05, 0x53, 0x70, 0xCE, 0x9A, 0xD1, 0x45,
+            0x78, 0x39, 0x3B, 0x43, 0xF5, 0x59, 0x80, 0x24, 0xE3, 0x7D, 0x2B, 0x8C, 0x0A, 0xE1, 0xEC, 0xCF, 0xEA, 0x99,
+            0xB9, 0xE3, 0x57, 0xCD, 0xDA, 0xF1, 0x98, 0x8D, 0xCD, 0x6E, 0xE9, 0x57, 0xDE, 0x50, 0x6C, 0x8A, 0x15, 0xB8,
+            0xE8, 0x72, 0xC4, 0x1D, 0xD3, 0xB2, 0x9F, 0x0B, 0x8E, 0x40, 0x15, 0xD4, 0xCC, 0xAD, 0x9C,
+            // GCM Tag (12 byte)
+            0xE6, 0x8A, 0xEC, 0x23, 0x21, 0x1C, 0x87, 0x60, 0x78, 0xAE, 0x3F, 0x03 };
 
     /**
      * Tests decrypting of a single complete Smarty telegram.
      */
     @Test
     public void testSmartyDecrypter() {
-        AtomicReference<String> telegramResult = new AtomicReference<>("");
-        P1TelegramListener telegramListener = telegram -> telegramResult.set(telegram.getRawTelegram());
-        SmartyDecrypter decoder = new SmartyDecrypter(new P1TelegramParser(telegramListener),
+        final AtomicReference<String> telegramResult = new AtomicReference<>("");
+        final P1TelegramListener telegramListener = telegram -> telegramResult.set(telegram.getRawTelegram());
+        final SmartyDecrypter decoder = new SmartyDecrypter(new P1TelegramParser(telegramListener),
                 new DSMRTelegramListener(KEY), KEY);
         decoder.setLenientMode(true);
-        byte[] data = new byte[TELEGRAM.length];
+        final byte[] data = new byte[TELEGRAM.length];
 
         for (int i = 0; i < TELEGRAM.length; i++) {
             data[i] = (byte) TELEGRAM[i];
         }
 
         decoder.parse(data, data.length);
-        String expected = new String(TelegramReaderUtil.readRawTelegram("smarty"), StandardCharsets.UTF_8);
+        final String expected = new String(TelegramReaderUtil.readRawTelegram("smarty_long"), StandardCharsets.UTF_8);
 
         assertThat("Should have correctly decrypted the telegram", telegramResult.get(), is(equalTo(expected)));
     }
diff --git a/bundles/org.openhab.binding.dsmr/src/test/resources/org/openhab/binding/dsmr/internal/smarty_long.telegram b/bundles/org.openhab.binding.dsmr/src/test/resources/org/openhab/binding/dsmr/internal/smarty_long.telegram
new file mode 100644 (file)
index 0000000..161efd2
--- /dev/null
@@ -0,0 +1,31 @@
+/Lux5\253663629_D\r
+\r
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+0-0:96.13.4()\r
+0-0:96.13.5()\r
+1-0:31.7.0(000*A)\r
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+1-0:71.7.0(000*A)\r
+!CFDE\r