pkt-loop-filter/Makefile

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

USER_TARGETS    += pkt-loop-filter get-bond-active
BPF_TARGETS    += pkt-loop-filter.kern get-bond-active.kern
BPF_SKEL_OBJ := pkt-loop-filter.kern.o get-bond-active.kern.o
EXTRA_DEPS := pkt-loop-filter.h bond-active.h bpf-defs.h
USER_TARGETS_OBJS := bond-active.o

LIB_DIR = ../lib

include $(LIB_DIR)/common.mk
Add pkt-loop-filter example Add an example to filter looping packets on (for instance) a bond interface, by recording the egress MAC+VLAN and dropping any packets that come in on other (related) interfaces with the same MAC+VLAN. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> 2022-05-20 14:53:14 +02:00			`# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)`

pkt-loop-filter: Add get-bond-active utility Add a small utility that uses a kprobe to extract the currently active slave ifindex from a bond interface. This value is normally only exported to userspace for bond types where it can be explicitly set, but the bond driver has an internal notion of an active interface regardless of the bond type. We can extract this value with a kprobe by attaching to a function in the bond driver and triggering an operation that causes this function to be called. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> 2022-06-28 19:57:47 +02:00			`USER_TARGETS += pkt-loop-filter get-bond-active`
			`BPF_TARGETS += pkt-loop-filter.kern get-bond-active.kern`
			`BPF_SKEL_OBJ := pkt-loop-filter.kern.o get-bond-active.kern.o`
			`EXTRA_DEPS := pkt-loop-filter.h bond-active.h bpf-defs.h`
			`USER_TARGETS_OBJS := bond-active.o`
Add pkt-loop-filter example Add an example to filter looping packets on (for instance) a bond interface, by recording the egress MAC+VLAN and dropping any packets that come in on other (related) interfaces with the same MAC+VLAN. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> 2022-05-20 14:53:14 +02:00
			`LIB_DIR = ../lib`

			`include $(LIB_DIR)/common.mk`