+ # we generate an esn from device strings for android
+ import subprocess
+ try:
+ manufacturer = subprocess.check_output(["/system/bin/getprop", "ro.product.manufacturer"])
+ if manufacturer:
+ esn = 'NFANDROID1-PRV-'
+ input = subprocess.check_output(["/system/bin/getprop", "ro.nrdp.modelgroup"])
+ if not input:
+ esn = esn + 'T-L3-'
+ else:
+ esn = esn + input.strip(' \t\n\r') + '-'
+ esn = esn + '{:5}'.format(manufacturer.strip(' \t\n\r').upper())
+ input = subprocess.check_output(["/system/bin/getprop" ,"ro.product.model"])
+ esn = esn + input.strip(' \t\n\r').replace(' ', '=').upper()
+ self.log(msg='Android generated ESN:' + esn)
+ return esn
+ except OSError as e:
+ self.log(msg='Ignoring exception for non Android devices')
+