bpf: Enable retrival of pid/tgid/comm from bpf cgroup hooks (834ebca8) · Commits · 戴 / test

We already have the bpf_get_current_uid_gid() helper enabled, and given we now have perf event RB output available for connect(), sendmsg(), recvmsg() and bind-related hooks, add a trivial change to enable bpf_get_current_pid_tgid() and bpf_get_current_comm() as well. Signed-off-by:

Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:

Alexei Starovoitov <ast@kernel.org> Acked-by:

Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/18744744ed93c06343be8b41edcfd858706f39d7.1585323121.git.daniel@iogearbox.net

net/core/filter.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -6018,6 +6018,10 @@ sock_filter_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
		return &bpf_get_netns_cookie_sock_proto;
		case BPF_FUNC_perf_event_output:
		return &bpf_event_output_data_proto;
		case BPF_FUNC_get_current_pid_tgid:
		return &bpf_get_current_pid_tgid_proto;
		case BPF_FUNC_get_current_comm:
		return &bpf_get_current_comm_proto;
		#ifdef CONFIG_CGROUPS
		case BPF_FUNC_get_current_cgroup_id:
		return &bpf_get_current_cgroup_id_proto;
		@@ -6058,6 +6062,10 @@ sock_addr_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
		return &bpf_get_local_storage_proto;
		case BPF_FUNC_perf_event_output:
		return &bpf_event_output_data_proto;
		case BPF_FUNC_get_current_pid_tgid:
		return &bpf_get_current_pid_tgid_proto;
		case BPF_FUNC_get_current_comm:
		return &bpf_get_current_comm_proto;
		#ifdef CONFIG_CGROUPS
		case BPF_FUNC_get_current_cgroup_id:
		return &bpf_get_current_cgroup_id_proto;

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