diff options
Diffstat (limited to 'tools/testing/selftests/hid/progs/hid.c')
| -rw-r--r-- | tools/testing/selftests/hid/progs/hid.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/testing/selftests/hid/progs/hid.c b/tools/testing/selftests/hid/progs/hid.c index 6a86af0aa545..88c593f753b5 100644 --- a/tools/testing/selftests/hid/progs/hid.c +++ b/tools/testing/selftests/hid/progs/hid.c @@ -33,6 +33,19 @@ int BPF_PROG(hid_first_event, struct hid_bpf_ctx *hid_ctx) } SEC("?fmod_ret/hid_bpf_device_event") +int BPF_PROG(hid_second_event, struct hid_bpf_ctx *hid_ctx) +{ + __u8 *rw_data = hid_bpf_get_data(hid_ctx, 0 /* offset */, 4 /* size */); + + if (!rw_data) + return 0; /* EPERM check */ + + rw_data[3] = rw_data[2] + 5; + + return hid_ctx->size; +} + +SEC("?fmod_ret/hid_bpf_device_event") int BPF_PROG(hid_change_report_id, struct hid_bpf_ctx *hid_ctx) { __u8 *rw_data = hid_bpf_get_data(hid_ctx, 0 /* offset */, 3 /* size */); |