It seems as sandbox moved to livetree these drivers were not updated. Heinrich suggested correctly that at this point we should be enumerating network interface names, not hard-coding eth0. Also, there were a few bugs that needed fixing.
Joe Hershberger (5): sandbox: eth-raw: Correct valid socket test in send/recv net: Correct comment in Kconfig net: sandbox: Convert sandbox mock eth driver to livetree net: sandbox-raw: Convert raw eth driver to livetree net: sandbox-raw: Allow interface to be specified by index
arch/sandbox/cpu/eth-raw-os.c | 32 ++++++++++++++++++++++++++++++-- arch/sandbox/dts/sandbox.dts | 2 +- arch/sandbox/include/asm/eth-raw-os.h | 4 +++- drivers/net/Kconfig | 2 +- drivers/net/sandbox-raw.c | 28 ++++++++++++++++++---------- drivers/net/sandbox.c | 15 +++++++++++---- 6 files changed, 64 insertions(+), 19 deletions(-)