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Posted to commits@plc4x.apache.org by ld...@apache.org on 2022/08/10 11:18:50 UTC
[plc4x] branch splatch/ads-symbol-discovery created (now 0072c3fd2)
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ldywicki pushed a change to branch splatch/ads-symbol-discovery
in repository https://gitbox.apache.org/repos/asf/plc4x.git
at 0072c3fd2 chore(ads): Worked on the browse functionality
This branch includes the following new commits:
new 7f1f52fd4 Prototype of ADS symbol scanner.
new 0072c3fd2 chore(ads): Worked on the browse functionality
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repository and will be described in separate emails. The revisions
listed as "add" were already present in the repository and have only
been added to this reference.
[plc4x] 02/02: chore(ads): Worked on the browse functionality
Posted by ld...@apache.org.
This is an automated email from the ASF dual-hosted git repository.
ldywicki pushed a commit to branch splatch/ads-symbol-discovery
in repository https://gitbox.apache.org/repos/asf/plc4x.git
commit 0072c3fd2776577baf506fa8317c08b5e6affaa6
Author: christoferdutz <ch...@c-ware.de>
AuthorDate: Wed Aug 3 08:46:28 2022 +0200
chore(ads): Worked on the browse functionality
---
.../plc4x/java/ads/protocol/AdsProtocolLogic.java | 98 +++++++++++++++++++++-
.../ads/AdsDiscoverySerializerParserTest.java | 2 +-
.../org/apache/plc4x/protocol/ads/AdsDriverIT.java | 4 +-
.../protocol/ads/ProbeAdsDiscoveryCommands.java | 8 +-
.../resources/protocols/ads/ads-discovery.mspec | 20 ++---
.../ads/src/main/resources/protocols/ads/ads.mspec | 86 +++++++++++++++++++
.../resources/protocols/ads/DriverTestsuite.xml | 76 ++++++-----------
7 files changed, 222 insertions(+), 72 deletions(-)
diff --git a/plc4j/drivers/ads/src/main/java/org/apache/plc4x/java/ads/protocol/AdsProtocolLogic.java b/plc4j/drivers/ads/src/main/java/org/apache/plc4x/java/ads/protocol/AdsProtocolLogic.java
index 77d9b18af..0d4128e85 100644
--- a/plc4j/drivers/ads/src/main/java/org/apache/plc4x/java/ads/protocol/AdsProtocolLogic.java
+++ b/plc4j/drivers/ads/src/main/java/org/apache/plc4x/java/ads/protocol/AdsProtocolLogic.java
@@ -96,8 +96,102 @@ public class AdsProtocolLogic extends Plc4xProtocolBase<AmsTCPPacket> implements
@Override
public void onConnect(ConversationContext<AmsTCPPacket> context) {
- // AMS/ADS doesn't know a concept of a "connect".
- context.fireConnected();
+ LOGGER.debug("Fetching sizes of symbol and datatype table sizes.");
+ final CompletableFuture<Void> future = new CompletableFuture<>();
+ List<AdsDataTypeTableEntry> dataTypes = new ArrayList<>();
+ List<AdsSymbolTableEntry> symbols = new ArrayList<>();
+ // Initialize the request.
+ AdsData adsData = new AdsReadRequest(AdsSignificantGroupAddresses.TABLE_SIZES.getValue(), 0x00000000, 24);
+ AmsPacket amsPacket = new AmsPacket(configuration.getTargetAmsNetId(), configuration.getTargetAmsPort(),
+ configuration.getSourceAmsNetId(), configuration.getSourceAmsPort(),
+ CommandId.ADS_READ, DEFAULT_COMMAND_STATE, 0, getInvokeId(), adsData);
+ AmsTCPPacket amsTCPPacket = new AmsTCPPacket(amsPacket);
+ // Start a new request-transaction (Is ended in the response-handler)
+ RequestTransactionManager.RequestTransaction transaction = tm.startRequest();
+ transaction.submit(() -> context.sendRequest(amsTCPPacket)
+ .expectResponse(AmsTCPPacket.class, Duration.ofMillis(configuration.getTimeoutRequest()))
+ .onTimeout(future::completeExceptionally)
+ .onError((p, e) -> future.completeExceptionally(e))
+ .check(responseAmsPacket -> responseAmsPacket.getUserdata().getInvokeId() == amsPacket.getInvokeId())
+ .unwrap(response -> (AdsReadResponse) response.getUserdata().getData())
+ .handle(responseAdsData -> {
+ if (responseAdsData.getResult() == ReturnCode.OK) {
+ ReadBuffer readBuffer = new ReadBufferByteBased(responseAdsData.getData());
+ try {
+ AdsTableSizes adsTableSizes = AdsTableSizes.staticParse(readBuffer);
+ LOGGER.info("PLC contains {} symbols and {} datatypes", adsTableSizes.getSymbolCount(), adsTableSizes.getDataTypeCount());
+
+ AdsData adsReadSymbolTableData = new AdsReadRequest(AdsSignificantGroupAddresses.SYMBOL_TABLE.getValue(), 0x00000000, adsTableSizes.getSymbolLength());
+ AmsPacket amsReadSymbolTablePacket = new AmsPacket(configuration.getTargetAmsNetId(), configuration.getTargetAmsPort(),
+ configuration.getSourceAmsNetId(), configuration.getSourceAmsPort(),
+ CommandId.ADS_READ, DEFAULT_COMMAND_STATE, 0, getInvokeId(), adsReadSymbolTableData);
+ AmsTCPPacket amsReadSymbolTableTCPPacket = new AmsTCPPacket(amsReadSymbolTablePacket);
+ transaction.submit(() -> context.sendRequest(amsReadSymbolTableTCPPacket)
+ .expectResponse(AmsTCPPacket.class, Duration.ofMillis(configuration.getTimeoutRequest()))
+ .onTimeout(future::completeExceptionally)
+ .onError((p, e) -> future.completeExceptionally(e))
+ .check(responseAmsPacket -> responseAmsPacket.getUserdata().getInvokeId() == amsReadSymbolTablePacket.getInvokeId())
+ .unwrap(response -> (AdsReadResponse) response.getUserdata().getData())
+ .handle(responseAdsReadSymbolTableData -> {
+ if (responseAdsData.getResult() == ReturnCode.OK) {
+ ReadBuffer rb2 = new ReadBufferByteBased(responseAdsReadSymbolTableData.getData());
+ for (int i = 0; i < adsTableSizes.getSymbolCount(); i++) {
+ try {
+ AdsSymbolTableEntry adsSymbolTableEntry = AdsSymbolTableEntry.staticParse(rb2);
+ System.out.println(adsSymbolTableEntry);
+ symbols.add(adsSymbolTableEntry);
+ } catch (ParseException e) {
+ throw new RuntimeException(e);
+ }
+ }
+ future.complete(null);
+ }
+ }));
+
+ // TODO: Now we load the symbol-table and the datatype definitions.
+ /*AdsData adsReadTypeTableData = new AdsReadRequest(AdsSignificantGroupAddresses.DATA_TYPE_TABLE.getValue(), 0x00000000, adsTableSizes.getDataTypeLength());
+ AmsPacket amsReadTablePacket = new AmsPacket(configuration.getTargetAmsNetId(), configuration.getTargetAmsPort(),
+ configuration.getSourceAmsNetId(), configuration.getSourceAmsPort(),
+ CommandId.ADS_READ, DEFAULT_COMMAND_STATE, 0, getInvokeId(), adsReadTypeTableData);
+ AmsTCPPacket amsReadTableTCPPacket = new AmsTCPPacket(amsReadTablePacket);
+ transaction.submit(() -> context.sendRequest(amsReadTableTCPPacket)
+ .expectResponse(AmsTCPPacket.class, Duration.ofMillis(configuration.getTimeoutRequest()))
+ .onTimeout(future::completeExceptionally)
+ .onError((p, e) -> future.completeExceptionally(e))
+ .check(responseAmsPacket -> responseAmsPacket.getUserdata().getInvokeId() == amsReadTablePacket.getInvokeId())
+ .unwrap(response -> (AdsReadResponse) response.getUserdata().getData())
+ .handle(responseAdsReadTableData -> {
+ if (responseAdsData.getResult() == ReturnCode.OK) {
+ // Parse the result.
+ ReadBuffer rb = new ReadBufferByteBased(responseAdsReadTableData.getData());
+ while (rb.hasMore(8)) {
+ try {
+ AdsDataTypeTableEntry adsDataTypeTableEntry = AdsDataTypeTableEntry.staticParse(rb);
+ System.out.println(adsDataTypeTableEntry);
+ dataTypes.add(adsDataTypeTableEntry);
+ } catch (ParseException e) {
+ throw new RuntimeException(e);
+ }
+ }
+ }
+ }));*/
+ } catch (ParseException e) {
+ future.completeExceptionally(new PlcException("Error loading the table sizes", e));
+ }
+ } else {
+ // TODO: Implement this correctly.
+ future.completeExceptionally(new PlcException("Result is " + responseAdsData.getResult()));
+ }
+ // Finish the request-transaction.
+ transaction.endRequest();
+ }));
+ future.whenComplete((unused, throwable) -> {
+ if(throwable != null) {
+ LOGGER.error("Error fetching symbol and datatype table sizes");
+ } else {
+ context.fireConnected();
+ }
+ });
}
@Override
diff --git a/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/AdsDiscoverySerializerParserTest.java b/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/AdsDiscoverySerializerParserTest.java
index 77b0d1ac7..0bda07b2b 100644
--- a/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/AdsDiscoverySerializerParserTest.java
+++ b/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/AdsDiscoverySerializerParserTest.java
@@ -24,7 +24,7 @@ import org.junit.jupiter.api.Disabled;
public class AdsDiscoverySerializerParserTest extends ParserSerializerTestsuiteRunner {
public AdsDiscoverySerializerParserTest() {
- super("/protocols/ads/AdsDiscoverySerializerTest.xml", true);
+ super("/protocols/ads/AdsDiscoverySerializerTest.xml");
}
}
diff --git a/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/AdsDriverIT.java b/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/AdsDriverIT.java
index 46c440588..973231ce1 100644
--- a/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/AdsDriverIT.java
+++ b/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/AdsDriverIT.java
@@ -19,11 +19,13 @@
package org.apache.plc4x.protocol.ads;
import org.apache.plc4x.test.driver.DriverTestsuiteRunner;
+import org.junit.jupiter.api.Disabled;
+@Disabled("I have to port the commands for reading the symbol-table first")
public class AdsDriverIT extends DriverTestsuiteRunner {
public AdsDriverIT() {
- super("/protocols/ads/DriverTestsuite.xml");
+ super("/protocols/ads/DriverTestsuite.xml", true);
}
}
diff --git a/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/ProbeAdsDiscoveryCommands.java b/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/ProbeAdsDiscoveryCommands.java
index 241255d2c..051341849 100644
--- a/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/ProbeAdsDiscoveryCommands.java
+++ b/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/ProbeAdsDiscoveryCommands.java
@@ -26,20 +26,22 @@ import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.util.Arrays;
+import java.util.Collections;
public class ProbeAdsDiscoveryCommands {
public static void main(String[] args) {
// Create the discovery request message for this device.
AmsNetId amsNetId = new AmsNetId((byte) 192, (byte) 168, (byte) 23, (byte) 200, (byte) 1, (byte) 1);
- AdsDiscovery discoveryRequestMessage = new AdsDiscovery(1, Operation.ADD_OR_UPDATE_ROUTE_REQUEST, amsNetId, AdsPortNumbers.SYSTEM_SERVICE,
+ AdsDiscovery discoveryRequestMessage = new AdsDiscovery(1, Operation.UNKNOWN_REQUEST, amsNetId, AdsPortNumbers.SYSTEM_SERVICE,
//Collections.emptyList()
Arrays.asList(
- new AdsDiscoveryBlockRouteName(new AmsString("route-name")),
+ /*new AdsDiscoveryBlockRouteName(new AmsString("route-name")),
new AdsDiscoveryBlockAmsNetId(amsNetId),
new AdsDiscoveryBlockUserName(new AmsString("username")),
new AdsDiscoveryBlockPassword(new AmsString("password")),
- new AdsDiscoveryBlockHostName(new AmsString("host-name-or-ip"))
+ new AdsDiscoveryBlockHostName(new AmsString("host-name-or-ip"))*/
+ new AdsDiscoveryBlockAmsNetId(new AmsNetId((byte) 192, (byte) 168, (byte) 23, (byte) 20, (byte) 1, (byte) 1))
));
try (DatagramSocket adsDiscoverySocket = new DatagramSocket(AdsDiscoveryConstants.ADSDISCOVERYUDPDEFAULTPORT)) {
diff --git a/protocols/ads/src/main/resources/protocols/ads/ads-discovery.mspec b/protocols/ads/src/main/resources/protocols/ads/ads-discovery.mspec
index 25b73f3a3..c49624e3a 100644
--- a/protocols/ads/src/main/resources/protocols/ads/ads-discovery.mspec
+++ b/protocols/ads/src/main/resources/protocols/ads/ads-discovery.mspec
@@ -113,27 +113,19 @@
// without any blocks for any of the "UNKNOWN" request codes.
// However all responses do contain the remote AmsNetId.
[enum uint 32 Operation
- ['0x00000000' UNKNOWN_1_REQUEST ]
- ['0x80000000' UNKNOWN_1_RESPONSE ]
['0x00000001' DISCOVERY_REQUEST ]
['0x80000001' DISCOVERY_RESPONSE ]
- ['0x00000002' UNKNOWN_2_REQUEST ]
- ['0x80000002' UNKNOWN_2_RESPONSE ]
- ['0x00000003' UNKNOWN_3_REQUEST ]
- ['0x80000003' UNKNOWN_3_RESPONSE ]
- ['0x00000004' UNKNOWN_4_REQUEST ]
- ['0x80000004' UNKNOWN_4_RESPONSE ]
- ['0x00000005' UNKNOWN_5_REQUEST ]
- ['0x80000005' UNKNOWN_5_RESPONSE ]
// Update information for an entry with the same AmsNetId
['0x00000006' ADD_OR_UPDATE_ROUTE_REQUEST ]
['0x80000006' ADD_OR_UPDATE_ROUTE_RESPONSE]
['0x00000007' DEL_ROUTE_REQUEST ]
['0x80000007' DEL_ROUTE_RESPONSE ]
- ['0x00000008' UNKNOWN_8_REQUEST ]
- ['0x80000008' UNKNOWN_8_RESPONSE ]
- ['0x00000009' UNKNOWN_9_REQUEST ]
- ['0x80000009' UNKNOWN_9_RESPONSE ]
+ // In contrast to the other message, I get an status block back when using this,
+ // just as if I was adding a route with invalid credentials. So possibly we might
+ // have something here ... I would guess something like a Enumerate Routes command
+ // For which I have seen in the documentation of TwinCat 2 and 3.
+ ['0x00000008' UNKNOWN_REQUEST ]
+ ['0x80000008' UNKNOWN_RESPONSE ]
]
[enum uint 32 Status
diff --git a/protocols/ads/src/main/resources/protocols/ads/ads.mspec b/protocols/ads/src/main/resources/protocols/ads/ads.mspec
index f8b69bb1d..a5d6bde5f 100644
--- a/protocols/ads/src/main/resources/protocols/ads/ads.mspec
+++ b/protocols/ads/src/main/resources/protocols/ads/ads.mspec
@@ -735,3 +735,89 @@
['0x274D' WSAECONNREFUSED]
['0x2751' WSAEHOSTUNREACH]
]
+
+// https://github.com/Beckhoff/ADS/blob/master/AdsLib/standalone/AdsDef.h
+// https://gitlab.com/xilix-systems-llc/go-native-ads/-/blob/master/ads.go#L145
+// https://gitlab.com/xilix-systems-llc/go-native-ads/-/blob/master/connection.go#L109
+// https://gitlab.com/xilix-systems-llc/go-native-ads/-/blob/master/symbols.go#L222
+[enum uint 32 AdsSignificantGroupAddresses
+ ['0x0000F00B' SYMBOL_TABLE ]
+ ['0x0000F00E' DATA_TYPE_TABLE]
+ ['0x0000F00F' TABLE_SIZES ]
+]
+
+[type AdsTableSizes byteOrder='LITTLE_ENDIAN'
+ [simple uint 32 symbolCount ]
+ [simple uint 32 symbolLength ]
+ [simple uint 32 dataTypeCount ]
+ [simple uint 32 dataTypeLength]
+ [simple uint 32 extraCount ]
+ [simple uint 32 extraLength ]
+]
+
+[type AdsSymbolTableEntry byteOrder='LITTLE_ENDIAN'
+ [simple uint 32 entryLength ]
+ [simple uint 32 group ]
+ [simple uint 32 offset ]
+ [simple uint 32 size ]
+ [simple uint 32 dataType ]
+ // Start: Flags
+ // https://github.com/jisotalo/ads-server/blob/master/src/ads-commons.ts#L631
+ // Order of the bits if read Little-Endian and then accessing the bit flags
+ // 7 6 5 4 3 2 1 0 | 15 14 13 12 11 10 9 8 | 23 22 21 20 19 18 17 16 | 31 30 29 28 27 26 25 24
+ [simple bit flagMethodDeref ]
+ [simple bit flagItfMethodAccess ]
+ [simple bit flagReadOnly ]
+ [simple bit flagTComInterfacePointer ]
+ [simple bit flagTypeGuid ]
+ [simple bit flagReferenceTo ]
+ [simple bit flagBitValue ]
+ [simple bit flagPersistent ]
+ [reserved uint 3 '0x00' ]
+ [simple bit flagExtendedFlags ]
+ [simple bit flagInitOnReset ]
+ [simple bit flagStatic ]
+ [simple bit flagAttributes ]
+ [simple bit flagContextMask ]
+ [reserved uint 16 '0x0000' ]
+ // End: Flags
+ [implicit uint 16 nameLength 'STR_LEN(name)' ]
+ [implicit uint 16 typeNameLength 'STR_LEN(typeName)']
+ [implicit uint 16 commentLength 'STR_LEN(comment)' ]
+ [simple vstring 'nameLength * 8' name ]
+ [const uint 8 nameTerminator 0x00 ]
+ [simple vstring 'typeNameLength * 8' typeName ]
+ [const uint 8 typeNameTerminator 0x00 ]
+ [simple vstring 'commentLength * 8' comment ]
+ [const uint 8 commentTerminator 0x00 ]
+ // Gobbling up the rest, but it seems there is content in here, when looking
+ // at the data in wireshark, it seems to be related to the flags field.
+ // Will have to continue searching for more details on how to decode this.
+ // I would assume that we'll have some "optional" fields here which depend
+ // on values in the flags section.
+ [array byte rest count 'entryLength - curPos']
+]
+
+// https://gitlab.com/xilix-systems-llc/go-native-ads/-/blob/master/symbols.go#L15
+[type AdsDataTypeTableEntry byteOrder='LITTLE_ENDIAN'
+ [simple uint 32 entryLength ]
+ [simple uint 32 version ]
+ [simple uint 32 hashValue ]
+ [simple uint 32 typeHashValue ]
+ [simple uint 32 size ]
+ [simple uint 32 offs ]
+ [simple uint 32 dataType ]
+ [simple uint 32 flags ]
+ [implicit uint 16 nameLength 'STR_LEN(name)' ]
+ [implicit uint 16 typeNameLength 'STR_LEN(typeName)']
+ [implicit uint 16 commentLength 'STR_LEN(comment)' ]
+ [simple uint 16 arrayDim ]
+ [simple uint 16 subItems ]
+ [simple vstring '(nameLength - 1) * 8' name ]
+ [const uint 8 nameTerminator 0x00 ]
+ [simple vstring '(typeNameLength - 1) * 8' typeName ]
+ [const uint 8 typeNameTerminator 0x00 ]
+ [simple vstring '(commentLength - 1) * 8' comment ]
+ [const uint 8 commentTerminator 0x00 ]
+ //[array AdsDataTypeTableEntry children length '']
+]
diff --git a/protocols/ads/src/test/resources/protocols/ads/DriverTestsuite.xml b/protocols/ads/src/test/resources/protocols/ads/DriverTestsuite.xml
index fb0aa1c2f..70a6dd51a 100644
--- a/protocols/ads/src/test/resources/protocols/ads/DriverTestsuite.xml
+++ b/protocols/ads/src/test/resources/protocols/ads/DriverTestsuite.xml
@@ -113,9 +113,9 @@
<data>
<AdsData>
<AdsReadRequest>
- <indexGroup dataType="uint" bitLength="32">4040</indexGroup>
- <indexOffset dataType="uint" bitLength="32">8</indexOffset>
- <length dataType="uint" bitLength="32">1</length>
+ <indexGroup dataType="uint" bitLength="32">61455</indexGroup>
+ <indexOffset dataType="uint" bitLength="32">0</indexOffset>
+ <length dataType="uint" bitLength="32">24</length>
</AdsReadRequest>
</AdsData>
</data>
@@ -238,7 +238,7 @@
<outgoing-plc-message name="Send Ads Read Request">
<AmsTCPPacket>
<reserved dataType="uint" bitLength="16">0</reserved>
- <length dataType="uint" bitLength="32">72</length>
+ <length dataType="uint" bitLength="32">44</length>
<userdata>
<AmsPacket>
<targetAmsNetId>
@@ -264,7 +264,7 @@
</sourceAmsNetId>
<sourceAmsPort dataType="uint" bitLength="16">48898</sourceAmsPort>
<commandId>
- <CommandId dataType="uint" bitLength="16" stringRepresentation="ADS_READ_WRITE">9</CommandId>
+ <CommandId dataType="uint" bitLength="16" stringRepresentation="ADS_READ">2</CommandId>
</commandId>
<state>
<State>
@@ -280,34 +280,16 @@
<reserved dataType="int" bitLength="7">0</reserved>
</State>
</state>
- <length dataType="uint" bitLength="32">40</length>
+ <length dataType="uint" bitLength="32">12</length>
<errorCode dataType="uint" bitLength="32">0</errorCode>
<invokeId dataType="uint" bitLength="32">1</invokeId>
<data>
<AdsData>
- <AdsReadWriteRequest>
- <indexGroup dataType="uint" bitLength="32">61568</indexGroup>
- <indexOffset dataType="uint" bitLength="32">2</indexOffset>
- <readLength dataType="uint" bitLength="32">10</readLength>
- <writeLength dataType="uint" bitLength="32">24</writeLength>
- <items isList="true">
- <AdsMultiRequestItem>
- <AdsMultiRequestItemRead>
- <itemIndexGroup dataType="uint" bitLength="32">4040</itemIndexGroup>
- <itemIndexOffset dataType="uint" bitLength="32">8</itemIndexOffset>
- <itemReadLength dataType="uint" bitLength="32">1</itemReadLength>
- </AdsMultiRequestItemRead>
- </AdsMultiRequestItem>
- <AdsMultiRequestItem>
- <AdsMultiRequestItemRead>
- <itemIndexGroup dataType="uint" bitLength="32">4040</itemIndexGroup>
- <itemIndexOffset dataType="uint" bitLength="32">12</itemIndexOffset>
- <itemReadLength dataType="uint" bitLength="32">1</itemReadLength>
- </AdsMultiRequestItemRead>
- </AdsMultiRequestItem>
- </items>
- <data dataType="byte" bitLength="0">0x</data>
- </AdsReadWriteRequest>
+ <AdsReadRequest>
+ <indexGroup dataType="uint" bitLength="32">61455</indexGroup>
+ <indexOffset dataType="uint" bitLength="32">0</indexOffset>
+ <length dataType="uint" bitLength="32">24</length>
+ </AdsReadRequest>
</AdsData>
</data>
</AmsPacket>
@@ -441,7 +423,7 @@
<outgoing-plc-message name="Send Resolve Symbolic Address Request">
<AmsTCPPacket>
<reserved dataType="uint" bitLength="16">0</reserved>
- <length dataType="uint" bitLength="32">74</length>
+ <length dataType="uint" bitLength="32">44</length>
<userdata>
<AmsPacket>
<targetAmsNetId>
@@ -467,7 +449,7 @@
</sourceAmsNetId>
<sourceAmsPort dataType="uint" bitLength="16">48898</sourceAmsPort>
<commandId>
- <CommandId dataType="uint" bitLength="16" stringRepresentation="ADS_READ_WRITE">9</CommandId>
+ <CommandId dataType="uint" bitLength="16" stringRepresentation="ADS_READ">2</CommandId>
</commandId>
<state>
<State>
@@ -483,20 +465,16 @@
<reserved dataType="int" bitLength="7">0</reserved>
</State>
</state>
- <length dataType="uint" bitLength="32">42</length>
+ <length dataType="uint" bitLength="32">12</length>
<errorCode dataType="uint" bitLength="32">0</errorCode>
<invokeId dataType="uint" bitLength="32">1</invokeId>
<data>
<AdsData>
- <AdsReadWriteRequest>
- <indexGroup dataType="uint" bitLength="32">61443</indexGroup>
+ <AdsReadRequest>
+ <indexGroup dataType="uint" bitLength="32">61455</indexGroup>
<indexOffset dataType="uint" bitLength="32">0</indexOffset>
- <readLength dataType="uint" bitLength="32">4</readLength>
- <writeLength dataType="uint" bitLength="32">26</writeLength>
- <items isList="true">
- </items>
- <data dataType="byte" bitLength="208">0x6d61696e2e665f74726967446174656947656c6573656e2e4d00</data>
- </AdsReadWriteRequest>
+ <length dataType="uint" bitLength="32">24</length>
+ </AdsReadRequest>
</AdsData>
</data>
</AmsPacket>
@@ -737,7 +715,7 @@
<outgoing-plc-message name="Send Resolve Symbolic Address Request">
<AmsTCPPacket>
<reserved dataType="uint" bitLength="16">0</reserved>
- <length dataType="uint" bitLength="32">74</length>
+ <length dataType="uint" bitLength="32">44</length>
<userdata>
<AmsPacket>
<targetAmsNetId>
@@ -763,7 +741,7 @@
</sourceAmsNetId>
<sourceAmsPort dataType="uint" bitLength="16">48898</sourceAmsPort>
<commandId>
- <CommandId dataType="uint" bitLength="16" stringRepresentation="ADS_READ_WRITE">9</CommandId>
+ <CommandId dataType="uint" bitLength="16" stringRepresentation="ADS_READ">2</CommandId>
</commandId>
<state>
<State>
@@ -779,20 +757,16 @@
<reserved dataType="int" bitLength="7">0</reserved>
</State>
</state>
- <length dataType="uint" bitLength="32">42</length>
+ <length dataType="uint" bitLength="32">12</length>
<errorCode dataType="uint" bitLength="32">0</errorCode>
<invokeId dataType="uint" bitLength="32">1</invokeId>
<data>
<AdsData>
- <AdsReadWriteRequest>
- <indexGroup dataType="uint" bitLength="32">61443</indexGroup>
+ <AdsReadRequest>
+ <indexGroup dataType="uint" bitLength="32">61455</indexGroup>
<indexOffset dataType="uint" bitLength="32">0</indexOffset>
- <readLength dataType="uint" bitLength="32">4</readLength>
- <writeLength dataType="uint" bitLength="32">26</writeLength>
- <items isList="true">
- </items>
- <data dataType="byte" bitLength="208">0x6d61696e2e665f74726967446174656947656c6573656e2e4d00</data>
- </AdsReadWriteRequest>
+ <length dataType="uint" bitLength="32">24</length>
+ </AdsReadRequest>
</AdsData>
</data>
</AmsPacket>
[plc4x] 01/02: Prototype of ADS symbol scanner.
Posted by ld...@apache.org.
This is an automated email from the ASF dual-hosted git repository.
ldywicki pushed a commit to branch splatch/ads-symbol-discovery
in repository https://gitbox.apache.org/repos/asf/plc4x.git
commit 7f1f52fd4f52fa0072882747d6e3e9eb28faad5f
Author: Łukasz Dywicki <lu...@code-house.org>
AuthorDate: Tue Aug 2 02:25:29 2022 +0200
Prototype of ADS symbol scanner.
Signed-off-by: Łukasz Dywicki <lu...@code-house.org>
---
.../org/apache/plc4x/protocol/ads/Scanner.java | 151 +++++++++++++++++++++
1 file changed, 151 insertions(+)
diff --git a/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/Scanner.java b/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/Scanner.java
new file mode 100644
index 000000000..4c55e0d66
--- /dev/null
+++ b/plc4j/drivers/ads/src/test/java/org/apache/plc4x/protocol/ads/Scanner.java
@@ -0,0 +1,151 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.plc4x.protocol.ads;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+import org.apache.plc4x.java.PlcDriverManager;
+import org.apache.plc4x.java.ads.readwrite.AdsDataType;
+import org.apache.plc4x.java.api.PlcConnection;
+import org.apache.plc4x.java.api.messages.PlcReadRequest;
+import org.apache.plc4x.java.api.messages.PlcReadResponse;
+import org.apache.plc4x.java.api.metadata.PlcConnectionMetadata;
+import org.apache.plc4x.java.api.value.PlcValue;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class Scanner {
+
+ private static Logger logger = LoggerFactory.getLogger(Scanner.class);
+
+ public static void main(String[] args) throws Exception {
+ if (args.length != 5) {
+ System.out.println("Usage: java -jar ... [ip -address] [target ams] [target ams port] [source ams] [source ams port]");
+ System.out.println("All fields are required. AMS route must be created beforehand.");
+ System.out.println("Example parameter sequence:");
+ System.out.println(" 192.168.2.251 39.42.54.209.1.1 851 192.168.2.232.1.1 851");
+ return;
+ }
+
+ String targetIp = args[0];
+ String targetAmsId = args[1];
+ String targetAmsPort = args[2];
+
+ String sourceAmsId = args[3];
+ String sourceAmsPort = args[4];
+
+ String connectionString = "ads:tcp://" + targetIp + "?targetAmsNetId=" + targetAmsId + "&targetAmsPort=" + targetAmsPort + "&sourceAmsNetId=" + sourceAmsId + "&sourceAmsPort=" + sourceAmsPort;
+ System.out.println("Launching connection " + connectionString);
+
+ // Establish a connection to the plc using the url provided as first argument
+ try (PlcConnection plcConnection = new PlcDriverManager().getConnection(connectionString)) {
+ PlcConnectionMetadata metadata = plcConnection.getMetadata();
+ System.out.println("read: " + metadata.canRead());
+ System.out.println("write: " + metadata.canWrite());
+
+ // read symbols
+ System.out.println("Reading symbol info");
+ PlcReadRequest.Builder readRequestBuilder = plcConnection.readRequestBuilder();
+ PlcReadRequest request = readRequestBuilder.addItem("SYM_UPLOADINFO2", "0xf00f/0x0:SINT[24]").build();
+ PlcReadResponse rsp = request.execute().get();
+ ByteBuffer buffer = toBuffer(rsp, "SYM_UPLOADINFO2");
+
+ //System.err.println("first answer " + Hex.dump(buffer.array()));
+ int symbolAnswerSize = buffer.getInt(4);
+ System.out.println("Expecting symbol table containing " + symbolAnswerSize + " bytes");
+
+ request = plcConnection.readRequestBuilder().addItem("SYM_UPLOAD", "0xf00b/0x0:SINT[" + symbolAnswerSize + "]").build();
+ PlcReadResponse readResponse = request.execute().get();
+ buffer = toBuffer(readResponse, "SYM_UPLOAD");
+ //System.err.println("second answer " + Hex.dump(buffer.array()));
+
+ System.out.println(" | PLC4X Field | Hex | ");
+ System.out.println("##### | Query Syntax | Index | Offset | Type | Name | Size (B) | Type | Flag | Comment");
+ System.out.println("------+------------------------------+-----------+-----------+----------+----------------------------------------+----------+------+------+");
+
+ int index = 0;
+ int pos = 0;
+
+ List<String> supportedTypes = Arrays.stream(AdsDataType.values())
+ .map(AdsDataType::name)
+ .map(String::toUpperCase)
+ .map(s -> s + '\0')
+ .collect(Collectors.toList());
+
+ while (buffer.remaining() > 0) {
+ int sectionLen = buffer.getInt();
+
+ int group = buffer.getInt();
+ int offset = buffer.getInt();
+ int symbolSize = buffer.getInt();
+ int symbolType = buffer.getInt();
+ int symbolFlags = buffer.getInt();
+ short nameLength = (short) (buffer.getShort() + 1);
+ short typeLength = (short) (buffer.getShort() + 1);
+ short commentLength = (short) (buffer.getShort() + 1);
+
+ String name= slice(buffer, nameLength);
+ String type = slice(buffer, typeLength);
+ String comment = slice(buffer, commentLength);
+
+ if (supportedTypes.contains(type.toUpperCase())) {
+ System.out.printf("%5s |", index++);
+ System.out.printf("%30s |", "0x" + Integer.toHexString(group) + "/0x" + Integer.toHexString(offset) + ":" + type);
+ System.out.printf("%10s |", "0x" + Integer.toHexString(group));
+ System.out.printf("%10s |", "0x" + Integer.toHexString(offset));
+ System.out.printf("%10s |", type);
+ System.out.printf("%-40s |", name);
+ System.out.printf("%9s |", symbolSize);
+ System.out.printf("%5s |", symbolType);
+ System.out.printf("%5s |", symbolFlags);
+ System.out.println(comment);
+ }
+
+ pos += sectionLen;
+ buffer.position(pos);
+
+ }
+ }
+ }
+
+ private static String slice(ByteBuffer buffer, short length) {
+ byte[] arr = new byte[length];
+ buffer.get(arr);
+ return new String(arr, StandardCharsets.UTF_8);
+ }
+
+ private static ByteBuffer toBuffer(PlcReadResponse rsp, String fieldName) {
+ System.out.println(rsp.getFieldNames() + " " + rsp.getField(fieldName) + " " + rsp.getResponseCode(fieldName));
+ List<PlcValue> symbols = (List<PlcValue>) rsp.getObject(fieldName);
+ ByteBuffer buffer = ByteBuffer.allocate(symbols.size()).order(ByteOrder.LITTLE_ENDIAN);
+
+ for (PlcValue byteVal : symbols) {
+ byte byteValue = byteVal.getByte();
+ //System.err.println("data " + Hex.encodeHexString(new byte[] {byteValue}));
+ buffer.put(byteValue);
+ }
+ buffer.rewind();
+ return buffer;
+ }
+
+}