labs: Makefile: Add scp and ssh targets for easier module transfer on…

… images with networking

tools/labs/Makefile

@@ -4,6 +4,8 @@ LABS ?= $(shell cd templates && find -mindepth 1 -maxdepth 1 -type d)
 MODS = $(shell cd templates && find $(LABS) -mindepth 1 -name Kbuild | xargs dirname)
 TODO ?= 0
 
+GUEST_IP_CMD ?= $(shell arp -n -i tap0 | tail -1 | cut -d ' ' -f 1)
+
 include qemu/Makefile
 
 skels:
@@ -31,6 +33,24 @@ copy: $(YOCTO_IMAGE)
 	sudo umount $(TEMPDIR)
 	rmdir $(TEMPDIR)
 
+scp: ip
+	scp -r skels root@$(shell cat .ip):
+
+ssh: ip
+	ssh root@$(shell cat .ip)
+
+ip:
+	if [ ! -e qemu.mon ]; then exit 1; fi
+	GUEST_IP=$(GUEST_IP_CMD); \
+	[ "$$GUEST_IP" = "arp:" ] && echo -n "Waiting for machine"; \
+	while [ "$$GUEST_IP" = "arp:" ]; do \
+		echo -n "."; \
+		sleep 1; \
+		GUEST_IP=`arp -e -n -i tap0 | tail -1 | cut -d ' ' -f 1`; \
+	done; \
+	echo ""; \
+	echo -n $$GUEST_IP > .ip
+
 docker-docs:
 	cd docker && docker-compose build docs-build
 	cd docker && UID=$(shell id -u) GID=$(shell id -g) docker-compose run docs-build bash -c "cd /linux/tools/labs && make docs"
@@ -57,4 +77,4 @@ clean::
 clean_skels:
 	rm -rf skels
 
-.PHONY: skels build copy docs docker-docs docker-kernel stop-docker-kernel clean clean_skels
+.PHONY: skels build copy scp ssh ip docs docker-docs docker-kernel stop-docker-kernel clean clean_skels