From c7ddbbaf1e73e2f4e95cfda7b1da1be7fd199a4d Mon Sep 17 00:00:00 2001 From: Yonghong Song Date: Sun, 3 Jun 2018 15:59:42 -0700 Subject: [PATCH] tools/bpf: sync uapi bpf.h for bpf_get_current_cgroup_id() helper Sync kernel uapi/linux/bpf.h with tools uapi/linux/bpf.h. Also add the necessary helper define in bpf_helpers.h. Acked-by: Alexei Starovoitov Signed-off-by: Yonghong Song Signed-off-by: Alexei Starovoitov --- tools/include/uapi/linux/bpf.h | 8 +++++++- tools/testing/selftests/bpf/bpf_helpers.h | 2 ++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index f0b6608b1f1c..18712b0dbfe7 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -2070,6 +2070,11 @@ union bpf_attr { * **CONFIG_SOCK_CGROUP_DATA** configuration option. * Return * The id is returned or 0 in case the id could not be retrieved. + * + * u64 bpf_get_current_cgroup_id(void) + * Return + * A 64-bit integer containing the current cgroup id based + * on the cgroup within which the current task is running. */ #define __BPF_FUNC_MAPPER(FN) \ FN(unspec), \ @@ -2151,7 +2156,8 @@ union bpf_attr { FN(lwt_seg6_action), \ FN(rc_repeat), \ FN(rc_keydown), \ - FN(skb_cgroup_id), + FN(skb_cgroup_id), \ + FN(get_current_cgroup_id), /* integer value in 'imm' field of BPF_CALL instruction selects which helper * function eBPF program intends to call diff --git a/tools/testing/selftests/bpf/bpf_helpers.h b/tools/testing/selftests/bpf/bpf_helpers.h index a66a9d91acf4..f2f28b6c8915 100644 --- a/tools/testing/selftests/bpf/bpf_helpers.h +++ b/tools/testing/selftests/bpf/bpf_helpers.h @@ -131,6 +131,8 @@ static int (*bpf_rc_repeat)(void *ctx) = static int (*bpf_rc_keydown)(void *ctx, unsigned int protocol, unsigned long long scancode, unsigned int toggle) = (void *) BPF_FUNC_rc_keydown; +static unsigned long long (*bpf_get_current_cgroup_id)(void) = + (void *) BPF_FUNC_get_current_cgroup_id; /* llvm builtin functions that eBPF C program may use to * emit BPF_LD_ABS and BPF_LD_IND instructions