Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
25 lines
473 B
C
25 lines
473 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <linux/bpf.h>
|
|
#include <bpf/bpf_helpers.h>
|
|
|
|
struct {
|
|
__uint(type, BPF_MAP_TYPE_CPUMAP);
|
|
__type(key, __u32);
|
|
__type(value, struct bpf_cpumap_val);
|
|
__uint(max_entries, 1);
|
|
} cpu_map SEC(".maps");
|
|
|
|
SEC("xdp/cpumap")
|
|
int xdp_drop_prog(struct xdp_md *ctx)
|
|
{
|
|
return XDP_DROP;
|
|
}
|
|
|
|
SEC("freplace")
|
|
int xdp_cpumap_prog(struct xdp_md *ctx)
|
|
{
|
|
return bpf_redirect_map(&cpu_map, 0, XDP_PASS);
|
|
}
|
|
|
|
char _license[] SEC("license") = "GPL";
|