adding Pi Zero without Ethernet mac address support

README.md

@@ -14,8 +14,8 @@ The Basics™ Station protocol enables the LoRa gateways with a reliable and sec
 
 ### Hardware
 
-* Raspberry Pi 3/4 or [balenaFin](https://www.balena.io/fin/)
-* SD card in case of the RPi 4
+* Raspberry Pi 0, 3/4 or [balenaFin](https://www.balena.io/fin/)
+* SD card in case of the RPi 0/3/4
 
 #### LoRa Concentrators (SPI)
 
@@ -146,6 +146,8 @@ Variable Name | Value | Description | Default
 **`TC_TRUST`** | `STRING` | Certificate for the server | Automatically retrieved from LetsEncryt based on the `TTN_STACK_VERSION` value
 **`MODEL`** | `STRING` | ```SX1301``` or ```SX1302``` | ```SX1301```
 **`TC_URI`** | `STRING` | basics station TC URI to get connected.  | 
+**`EUI_ADDRESS`** | `STRING` | In case you use Raspberry Pi Zero without `eth0` you can use this to generate the `EUI` from `wlan0` instead of another network interface. You will need to add `wlan0` | 
+
 
 #### The Things Stack (TTS) Specific Variables (V3)
 

docker-compose.yml

@@ -0,0 +1,21 @@
+version: 2
+
+services:
+
+  basicstation:
+    build: .
+    container_name: basicstation
+    restart: unless-stopped
+    privileged: true
+    network_mode: host      # required to read main interface MAC instead of virtual one
+    environment:
+      MODEL: "SX1301"
+      GW_GPS: "false"
+      GW_RESET_GPIO: 17
+      GW_ENABLE_GPIO: 0
+      TTN_STACK_VERSION: 3
+      TTN_REGION: "eu1"
+      #TC_URI:              # uses TTN server by default, based on the TTN_STACK_VERSION and TTN_REGION variables
+      #TC_TRUST:            # uses TTN certificates by default
+      TC_KEY:
+      #EUI_ADDRESS:         # required if you use a Pi Zero W or Pi Zero 2 W

setup.gmk

@@ -45,9 +45,11 @@ ARCH.linux.default   = x86_64-linux-gnu
 ARCH.linuxV2.default = x86_64-linux-gnu
 ARCH.linuxpico.default = x86_64-linux-gnu
 ARCH.corecell.default  = arm-linux-gnueabihf
+ARCH.corecell.rpi = arm-linux-gnueabihf
 ARCH.corecell.armv7hf  = arm-linux-gnueabihf
 ARCH.corecell.aarch64  = aarch64-linux-gnu
 ARCH.rpi.default  = arm-linux-gnueabihf
+ARCH.rpi.rpi  = arm-linux-gnueabihf
 ARCH.rpi.armv7hf  = arm-linux-gnueabihf
 ARCH.rpi.aarch64  = aarch64-linux-gnu
 ARCH.kerlink.default = arm-klk-linux-gnueabi

src-linux/sys_linux.c

@@ -204,9 +204,12 @@ static void findDefaultEui () {
         if( ifc[0] != 0 ) {
             if( strncmp(ifc, "eth", 3) == 0 && strncmp(dname, "eth", 3) != 0 )
                 continue; // eth trumps other devices
+            // in case there is no eth0
+            if( strncmp(ifc, "wla", 3) == 0 && strncmp(dname, "wla", 3) != 0 )
+                continue; // wlan trumps other devices
             // Otherwie choose alphabetically lowest - unless eth replaces something else
             if( !((strncmp(ifc, "eth", 3) == 0) ^ (strncmp(dname, "eth", 3) == 0))
-                && strcmp(ifc, dname) <= 0 )
+                && strcmp(ifc, dname) > 0 )
                 continue; // not lower
         }
         strcpy(ifc, dname);
@@ -219,6 +222,7 @@ static void findDefaultEui () {
         protoEUI = eui;
         rt_free((void*)protoEuiSrc);
         protoEuiSrc = rt_strdup(path);
+        LOG(MOD_SYS|INFO, "findDefaultEui -> protoEuiSrc %s - protoEUI %lu", protoEuiSrc, protoEUI);
     }
 }
 
@@ -366,7 +370,7 @@ void sys_ini () {
         logfile.path==NULL ? "stderr" : logfile.path, logfile.size, logfile.rotate);
     LOG(MOD_SYS|INFO, "Station Ver : %s",  CFG_version " " CFG_bdate);
     LOG(MOD_SYS|INFO, "Package Ver : %s",  sys_version());
-    LOG(MOD_SYS|INFO, "proto EUI   : %:E\t(%s)", protoEUI, protoEuiSrc);
+    LOG(MOD_SYS|INFO, "proto EUI(x) : %:E\t(%s)", protoEUI, protoEuiSrc);
     LOG(MOD_SYS|INFO, "prefix EUI  : %:E\t(%s)", prefixEUI, prefixEuiSrc);
     LOG(MOD_SYS|INFO, "Station EUI : %:E", sys_eui());
     LOG(MOD_SYS|INFO, "Station home: %s\t(%s)",  homeDir, homeDirSrc);

start.sh

@@ -1,7 +1,15 @@
 #!/usr/bin/env bash
 
 TAG_KEY="EUI"
-TTN_EUI=$(cat /sys/class/net/eth0/address | sed -r 's/[:]+//g' | sed -e 's#\(.\{6\}\)\(.*\)#\1fffe\2#g')
+
+if [ -z ${EUI_ADDRESS} ] ;
+ then
+    TTN_EUI=$(cat /sys/class/net/eth0/address | sed -r 's/[:]+//g' | sed -e 's#\(.\{6\}\)\(.*\)#\1fffe\2#g')
+ else
+    echo "Using DEVICE: $EUI_ADDRESS"
+    TTN_EUI=$(cat /sys/class/net/wlan0/address | sed -r 's/[:]+//g' | sed -e 's#\(.\{6\}\)\(.*\)#\1fffe\2#g')
+fi
+
 
 echo "Gateway EUI: $TTN_EUI"