preserve-dscp/Makefile

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

USER_TARGETS    += preserve-dscp
BPF_TARGETS    += preserve_dscp_kern

LIB_DIR = ../lib

include $(LIB_DIR)/common.mk
Add preserve-dscp example for preserving a DSCP mark over encapsulation This is a fun example showing how to use BPF to preserve DSCP values across an encapsulating interface, such as Wireguard. It relies on the encapsulation layer preserving the skb->hash value across the encapsulation, which is commonly the case on kernel encapsulation protocols (including Wireguard), and uses a pair of TC BPF programs and a map to re-match the packets after encapsulation and add back the DSCP value. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> 2021-06-17 17:02:08 +02:00			`# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)`

			`USER_TARGETS += preserve-dscp`
			`BPF_TARGETS += preserve_dscp_kern`

			`LIB_DIR = ../lib`

			`include $(LIB_DIR)/common.mk`