diff --git a/package/skeleton/skeleton.mk b/package/skeleton/skeleton.mk index 920d3b42d3..d1b797ddcf 100644 --- a/package/skeleton/skeleton.mk +++ b/package/skeleton/skeleton.mk @@ -89,6 +89,7 @@ define SET_NETWORK_DHCP echo ; \ echo "auto $(NETWORK_DHCP_IFACE)"; \ echo "iface $(NETWORK_DHCP_IFACE) inet dhcp"; \ + echo " wait-delay 15"; \ ) >> $(TARGET_DIR)/etc/network/interfaces endef endif diff --git a/system/skeleton/etc/network/if-pre-up.d/wait_iface b/system/skeleton/etc/network/if-pre-up.d/wait_iface new file mode 100755 index 0000000000..ebccff2aa5 --- /dev/null +++ b/system/skeleton/etc/network/if-pre-up.d/wait_iface @@ -0,0 +1,21 @@ +#!/bin/sh + +# In case we have a slow-to-appear interface (e.g. eth-over-USB), +# and we need to configure it, wait until it appears, but not too +# long either. IF_WAIT_DELAY is in seconds. + +if [ "${IF_WAIT_DELAY}" -a ! -e "/sys/class/net/${IFACE}" ]; then + printf "Waiting for interface %s to appear" "${IFACE}" + while [ ${IF_WAIT_DELAY} -gt 0 ]; do + if [ -e "/sys/class/net/${IFACE}" ]; then + printf "\n" + exit 0 + fi + sleep 1 + printf "." + : $((IF_WAIT_DELAY -= 1)) + done + printf " timeout!\n" + exit 1 +fi +