Add linux port

.gitignore

@@ -42,4 +42,11 @@ crashlytics-build.properties
 fabric.properties
 
 server/packages/**
-*.exe
+*.exe
+
+# Linux stuff
+linux/plugins/ets2-telemetry-lin.so
+linux/plugins/read_util
+linux/server/read_util
+favourites.json*
+__pycache__/

linux/plugins/Makefile

@@ -0,0 +1,28 @@
+SDK_HEADERS=\
+	../sdk/include/*.h \
+	../sdk/include/common/*.h \
+	../sdk/include/amtrucks/*.h \
+	../sdk/include/eurotrucks2/*.h
+
+SDK_INCLUDES=\
+	-I../sdk/include \
+	-I../sdk/include/common/ \
+	-I../sdk/include/amtrucks/ \
+	-I../sdk/include/eurotrucks2
+
+CLEANABLE=*.so read_util dummy
+
+all: ets2-telemetry-lin.so read_util dummy
+
+ets2-telemetry-lin.so: plugin.cpp $(SDK_HEADERS) defs.h
+	g++ -O2 -o $@ -fPIC -Wall --shared -Wl,-soname,$@ $(SDK_INCLUDES) plugin.cpp -lrt
+
+read_util: read_util.cpp $(SDK_HEADERS) defs.h
+	g++ -O2 -o $@ -Wall $(SDK_INCLUDES) read_util.cpp -lrt
+
+dummy: dummy.cpp $(SDK_HEADERS) defs.h
+	g++ -O2 -o $@ -Wall $(SDK_INCLUDES) dummy.cpp -lrt
+
+.PHONY: clean
+clean:
+	@rm -f -- $(CLEANABLE)

linux/plugins/README.md

@@ -0,0 +1,31 @@
+# ETS2 Local Radio Linux port
+
+## Installation instructions
+
+To build and install the plugin and utility script, you will need GCC and Make (these come standard with a lot of distributions).
+
+In this directory, run the command:
+
+```bash
+make all && ./install.sh
+```
+
+If you get errors, you probably need to install a dependency.
+
+You will need to copy the plugin `ets2-telemetry-lin.so` manually to your plugins directory if ETS is not installed via Steam on your main partition, or if you are using ATS.
+
+## Running
+
+Go to the `server` directory and run:
+
+```bash
+python3 main.py
+```
+
+This will by default run at `localhost:3141`, but feel free to change the port by adding the `--port` flag.
+
+Then just visit `localhost:3141` (or your specified port) to view the web interface!
+
+## Development
+
+The `dummy` allows you to send fake data to the shared memory, for testing purposes.

linux/plugins/defs.h

@@ -0,0 +1,20 @@
+#ifndef __DEFS__
+#define __DEFS__
+
+// SDK
+#include "scssdk_telemetry.h"
+#include "eurotrucks2/scssdk_eut2.h"
+#include "eurotrucks2/scssdk_telemetry_eut2.h"
+#include "amtrucks/scssdk_ats.h"
+#include "amtrucks/scssdk_telemetry_ats.h"
+
+const char shm_name[] = "/ets2radiolinux";
+const int NUM_PAGES = 1;
+
+typedef struct telemetry_state_t
+{
+	scs_value_dplacement_t world_position;
+	scs_value_bool_t electricity;
+} telemetry_state_t;
+
+#endif /* __DEFS__ */

linux/plugins/dummy.cpp

@@ -0,0 +1,111 @@
+/**
+ * @brief This provides dummy data to the shared memory.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <stdarg.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include "defs.h"
+
+/**
+ * @brief Useful telemetry data.
+ */
+telemetry_state_t telemetry;
+
+/**
+ * @brief Opaque pointer to use for mmap
+ */
+void* mapped_region = NULL;
+size_t MAP_SIZE = -1;
+
+
+int main()
+{
+	memset(&telemetry, 0, sizeof(telemetry));
+	MAP_SIZE = getpagesize();
+
+	// Open shared memory
+	int handle = shm_open(shm_name, O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
+	if (handle < 0) {
+		fprintf(stderr, "Local radio: could not open shared memory");
+		return 1;
+	}
+
+	if (ftruncate(handle, MAP_SIZE) < 0) {
+		fprintf(stderr, "Local radio: could not truncate shared memory");
+		return 1;
+	}
+
+	mapped_region = mmap(
+		0,
+		MAP_SIZE,
+		PROT_READ | PROT_WRITE,
+		MAP_SHARED,
+		handle,
+		0
+	);
+
+	if (mapped_region == MAP_FAILED) {
+		fprintf(stderr, "Local radio: could not mmap shared memory");
+		return 1;
+	}
+
+    telemetry_state_t telemetry;
+    memset(&telemetry, 0, sizeof(telemetry_state_t));
+    telemetry.electricity = { 1 };
+
+    char buf[128];
+    while (1) {
+        printf("Enter location (x,y,z): ");
+        fgets(buf, 128, stdin);
+
+        char numBuf[32];
+        int offset = 0;
+        double coords[3];
+        int onCoord = 0;
+        char current;
+        for (int i = 0; i < 128; ++i) {
+            current = buf[i];
+            if (current == '\x00') {
+                break;
+            }
+
+            if (current == ',' || current == '\n') {
+                numBuf[i - offset] = '\x00';
+                coords[onCoord] = strtod(numBuf, NULL);
+
+                onCoord++;
+                offset = i + 1;
+
+                if (onCoord > 2) {
+                    break;
+                } 
+
+                continue;
+            }
+
+            numBuf[i - offset] = current;
+        }
+
+        telemetry.world_position.position = {
+            coords[0],
+            coords[1],
+            coords[2],
+        };
+
+        memcpy(mapped_region, &telemetry, sizeof(telemetry_state_t));
+    }
+
+    return 0;
+}
+
+void __attribute__ ((destructor)) unload(void)
+{
+	shm_unlink(shm_name);
+}

linux/plugins/install.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+cp read_util "../server"
+
+if [ ! -d "$HOME/.local/share/Steam/steamapps/common/Euro Truck Simulator 2/bin/linux_x64/" ]; then
+    echo "WARN: Could not find ETS2 installation! Please manually move ets2-telemetry-lin.so to your plugins directory."
+    echo "Installed with partial success"
+    exit 1
+else
+    mkdir -p "$HOME/.local/share/Steam/steamapps/common/Euro Truck Simulator 2/bin/linux_x64/plugins"
+    mkdir -p "$HOME/.local/share/Steam/steamapps/common/Euro Truck Simulator 2/bin/linux_x86/plugins"
+    cp ets2-telemetry-lin.so "$HOME/.local/share/Steam/steamapps/common/Euro Truck Simulator 2/bin/linux_x64/plugins"
+    cp ets2-telemetry-lin.so "$HOME/.local/share/Steam/steamapps/common/Euro Truck Simulator 2/bin/linux_x86/plugins"
+fi
+
+echo "Installed successfully"