100644 blob 29e9435d3f81359f3a1b81f097c07c5e54a24c5e	BUILD.gn
040000 tree 53664b1d9b5ef6f6b1a00ae6fab2e886c4cc4ea9	common
040000 tree 812d4aaa4555bb3d26982681bf8f7c44133383b6	hdlc
040000 tree 654727265105109e7e2820eaf683bcb767c0f6cf	ppp_packet
040000 tree e607082792f901c949cb44bd6e876a9ab56d64c8	ppp_protocol