From patchwork Tue Aug 13 12:45:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Alexis_Lothor=C3=A9?= X-Patchwork-Id: 818989 Received: from relay6-d.mail.gandi.net (relay6-d.mail.gandi.net [217.70.183.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9A99A1993AC; Tue, 13 Aug 2024 12:45:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.198 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723553124; cv=none; b=lfCjgvSjnr7xgISUdk7V+K5LU5rN8fiymMqDkq57OCvE3VtS9pGSCwh4frMwACJBa+jpSy6nmnKM/jAFSVCrctTWp0QrLFJ57L7evx8F3KYDiYJ+WFZnyFYaO7yXUdt4F5ZEyeDRh2nBaW4NiSEpPJp4fIoKJlvYqgekybuTNjI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723553124; c=relaxed/simple; bh=9oNt0WaYPSg4JGMsU247xlPjVAMF26JMUmIJNrtt0TI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=HZvQpwZlPyHoEmoCgJgSZLjmDGu8xUDEwacT4wFxDfyM2J9QNb31KfGp0VJ3QUf+xrfpyJYkVFs66wPCXpx0RzLoSQ0o0argOebxiWWF+Ck50rrZrT180btfNB4enUov2JRY9lXCvBd/VJkseSZBeNSK3/WKfj1tAH9wJNhriKk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=BKZug/Xw; arc=none smtp.client-ip=217.70.183.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="BKZug/Xw" Received: by mail.gandi.net (Postfix) with ESMTPSA id 0AB75C000A; Tue, 13 Aug 2024 12:45:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1723553114; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=jU4BPWAnN7c1WNFwEKIwFGr49YxXIk59zsUN8zRWA+I=; b=BKZug/XwBjnnoYHdEtDeyCPVLH4gG8YGKhyzLrAyLKrJlFvXNsIyIYFyJkrf7oDiZbaTIh d2jYSBzaQl4LziZs0a/q5ddFjEumlAVCePA0u66CgtsfBA3o/IudEamn6byutlJISTRa4t 2Uqhnw9oNOcYOnvp3/YtcLIPCCBZCrREAoFe18UtSLACCODV0R6/OtQjfyWRkT7qE0tzpw 1LXcKC+bgjYVyYJU3x2q+nNGTjMxBXhzlwN/IBNyuKhbVTLyVa9oqNm9jLiviu/IwrToSo fO1lvI68/NSfGBa1BySo8NFEC3orNgQyEvgQqO+GnXrZr57uniBT5mVUc8nyCA== From: =?utf-8?q?Alexis_Lothor=C3=A9_=28eBPF_Foundation=29?= Date: Tue, 13 Aug 2024 14:45:07 +0200 Subject: [PATCH bpf-next v4 3/4] selftests/bpf: add proper section name to bpf prog and rename it Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240813-convert_cgroup_tests-v4-3-a33c03458cf6@bootlin.com> References: <20240813-convert_cgroup_tests-v4-0-a33c03458cf6@bootlin.com> In-Reply-To: <20240813-convert_cgroup_tests-v4-0-a33c03458cf6@bootlin.com> To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Mykola Lysenko , Shuah Khan Cc: ebpf@linuxfoundation.org, Thomas Petazzoni , linux-kernel@vger.kernel.org, bpf@vger.kernel.org, linux-kselftest@vger.kernel.org, Alan Maguire , =?utf-8?q?Alexis_Lothor=C3=A9_=28eBPF_Foundation=29?= X-Mailer: b4 0.14.1 X-GND-Sasl: alexis.lothore@bootlin.com test_skb_cgroup_id_kern.c is currently involved in a manual test. In its current form, it can not be used with the auto-generated skeleton APIs, because the section name is not valid to allow libbpf to deduce the program type. Update section name to allow skeleton APIs usage. Also rename the program name to make it shorter and more straighforward regarding the API it is testing. While doing so, make sure that test_skb_cgroup_id.sh passes to get a working reference before converting it to test_progs - update the obj name - fix loading issue (verifier rejecting the program when loaded through tc, because of map not found), by preloading the whole obj with bpftool Reviewed-by: Alan Maguire Signed-off-by: Alexis Lothoré (eBPF Foundation) --- .../progs/{test_skb_cgroup_id_kern.c => cgroup_ancestor.c} | 2 +- tools/testing/selftests/bpf/test_skb_cgroup_id.sh | 12 ++++++++---- 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/bpf/progs/test_skb_cgroup_id_kern.c b/tools/testing/selftests/bpf/progs/cgroup_ancestor.c similarity index 97% rename from tools/testing/selftests/bpf/progs/test_skb_cgroup_id_kern.c rename to tools/testing/selftests/bpf/progs/cgroup_ancestor.c index 37aacc66cd68..4879645f5827 100644 --- a/tools/testing/selftests/bpf/progs/test_skb_cgroup_id_kern.c +++ b/tools/testing/selftests/bpf/progs/cgroup_ancestor.c @@ -28,7 +28,7 @@ static __always_inline void log_nth_level(struct __sk_buff *skb, __u32 level) bpf_map_update_elem(&cgroup_ids, &level, &id, 0); } -SEC("cgroup_id_logger") +SEC("tc") int log_cgroup_id(struct __sk_buff *skb) { /* Loop unroll can't be used here due to [1]. Unrolling manually. diff --git a/tools/testing/selftests/bpf/test_skb_cgroup_id.sh b/tools/testing/selftests/bpf/test_skb_cgroup_id.sh index 515c2eafc97f..d7dad49175c2 100755 --- a/tools/testing/selftests/bpf/test_skb_cgroup_id.sh +++ b/tools/testing/selftests/bpf/test_skb_cgroup_id.sh @@ -30,8 +30,10 @@ setup() wait_for_ip tc qdisc add dev ${TEST_IF} clsact - tc filter add dev ${TEST_IF} egress bpf obj ${BPF_PROG_OBJ} \ - sec ${BPF_PROG_SECTION} da + mkdir -p /sys/fs/bpf/${BPF_PROG_PIN} + bpftool prog loadall ${BPF_PROG_OBJ} /sys/fs/bpf/${BPF_PROG_PIN} type tc + tc filter add dev ${TEST_IF} egress bpf da object-pinned \ + /sys/fs/bpf/${BPF_PROG_PIN}/${BPF_PROG_NAME} BPF_PROG_ID=$(tc filter show dev ${TEST_IF} egress | \ awk '/ id / {sub(/.* id /, "", $0); print($1)}') @@ -41,6 +43,7 @@ cleanup() { ip link del ${TEST_IF} 2>/dev/null || : ip link del ${TEST_IF_PEER} 2>/dev/null || : + rm -rf /sys/fs/bpf/${BPF_PROG_PIN} } main() @@ -54,8 +57,9 @@ DIR=$(dirname $0) TEST_IF="test_cgid_1" TEST_IF_PEER="test_cgid_2" MAX_PING_TRIES=5 -BPF_PROG_OBJ="${DIR}/test_skb_cgroup_id_kern.bpf.o" -BPF_PROG_SECTION="cgroup_id_logger" +BPF_PROG_PIN="cgroup_ancestor" +BPF_PROG_OBJ="${DIR}/${BPF_PROG_PIN}.bpf.o" +BPF_PROG_NAME="log_cgroup_id" BPF_PROG_ID=0 PROG="${DIR}/test_skb_cgroup_id_user" type ping6 >/dev/null 2>&1 && PING6="ping6" || PING6="ping -6"