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From: John Fastabend <john.fastabend@gmail.com>
To: ast@kernel.org, daniel@iogearbox.net
Cc: lmb@cloudflare.com, bpf@vger.kernel.org,
	john.fastabend@gmail.com, jakub@cloudflare.com,
	netdev@vger.kernel.org
Subject: [bpf-next PATCH 1/3] bpf: sk_msg add some generic helpers that may be useful from sk_msg
Date: Wed, 13 May 2020 12:23:50 -0700	[thread overview]
Message-ID: <158939783014.17281.11169741455617229373.stgit@john-Precision-5820-Tower> (raw)
In-Reply-To: <158939776371.17281.8506900883049313932.stgit@john-Precision-5820-Tower>

Add these generic helpers that may be useful to use from sk_msg programs.
The helpers do not depend on ctx so we can simply add them here,

 BPF_FUNC_perf_event_output
 BPF_FUNC_get_current_uid_gid
 BPF_FUNC_get_current_pid_tgid
 BPF_FUNC_get_current_comm
 BPF_FUNC_get_current_cgroup_id
 BPF_FUNC_get_current_ancestor_cgroup_id
 BPF_FUNC_get_cgroup_classid

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
---
 net/core/filter.c |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/net/core/filter.c b/net/core/filter.c
index da06349..45b4a16 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -6380,6 +6380,22 @@ sk_msg_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
 		return &bpf_msg_push_data_proto;
 	case BPF_FUNC_msg_pop_data:
 		return &bpf_msg_pop_data_proto;
+	case BPF_FUNC_perf_event_output:
+		return &bpf_event_output_data_proto;
+	case BPF_FUNC_get_current_uid_gid:
+		return &bpf_get_current_uid_gid_proto;
+	case BPF_FUNC_get_current_pid_tgid:
+		return &bpf_get_current_pid_tgid_proto;
+#ifdef CONFIG_CGROUPS
+	case BPF_FUNC_get_current_cgroup_id:
+		return &bpf_get_current_cgroup_id_proto;
+	case BPF_FUNC_get_current_ancestor_cgroup_id:
+		return &bpf_get_current_ancestor_cgroup_id_proto;
+#endif
+#ifdef CONFIG_CGROUP_NET_CLASSID
+	case BPF_FUNC_get_cgroup_classid:
+		return &bpf_get_cgroup_classid_curr_proto;
+#endif
 	default:
 		return bpf_base_func_proto(func_id);
 	}


  reply	other threads:[~2020-05-13 19:24 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-13 19:23 [bpf-next PATCH 0/3] bpf: Add sk_msg helpers John Fastabend
2020-05-13 19:23 ` John Fastabend [this message]
2020-05-14  6:58   ` [bpf-next PATCH 1/3] bpf: sk_msg add some generic helpers that may be useful from sk_msg Yonghong Song
2020-05-13 19:24 ` [bpf-next PATCH 2/3] bpf: sk_msg helpers for probe_* and *current_task* John Fastabend
2020-05-14  7:21   ` Yonghong Song
2020-05-14 13:30     ` John Fastabend
2020-05-14  8:02   ` Daniel Borkmann
2020-05-13 19:24 ` [bpf-next PATCH 3/3] bpf: sk_msg add get socket storage helpers John Fastabend
2020-05-14  7:26   ` Yonghong Song

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