From patchwork Tue Jul 23 22:22:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geliang Tang X-Patchwork-Id: 13740398 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 131EF148827; Tue, 23 Jul 2024 22:22:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721773370; cv=none; b=CKEqqIL2AsO7JTgiC4nGX6OIhnS5QtDAAZ3ROZ1nQyERHntk6jLKP4MGJbf9Q2d1CXdARmn9z/U344+Ry9c5beMFQkJ8oqcA6xlcSZkU81Y/1AUTvBPrP4jL4Vj25YFio0uXHcKcTe1lmC+bOclldR7D4xvCsjFSZC5pZV8EFf8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721773370; c=relaxed/simple; bh=KqMjTfdH3u15gtevijB3kg0N1GugqZKCG34zP8wwTAc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=JDOGbUQlVwsUwYTkTYiCi+kjp8MVaAOnYCgr7iobfYZdV2RZzvd+mProkICoShHzjsX24HVdf7+kW85xaBqsO/wSrm9xOBdaxRI/rgKbD/tC8u8eCpFFHavP5dtYYQJ9eJARynHIX6BZW6mOq0hnC9kqX+xecVtLEgPIFUmuuHI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=aA2k9J+R; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="aA2k9J+R" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 424FFC4AF11; Tue, 23 Jul 2024 22:22:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1721773369; bh=KqMjTfdH3u15gtevijB3kg0N1GugqZKCG34zP8wwTAc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aA2k9J+RBpPquH6t/tiNY7iEvKjFI6LrEHxmUwtCF8WKySK0DzMhGyjnut9kJllWX buO5qJcPgG5DGs8ejkgNrrAfol47Z4oIqk1RRK5EBsjk0GQwFIp2IQnyP39EP8x+Fw peVHpfoCDikqoxQcs75jdPlhDXBVj18UHoH9BvxWdy55op/do6fOxwtT5pFE8sSPVP zzJZIAK+GfuXM9DLqjCM25BdUiQcfqHhjjF4QFFN6aDnIYp8x24ESmWrBkLHIi+NR1 2/rOyHesbqLuBkmjzcPi7Ns8NYEx95VvlbHUr6xzhz6Af2CUyer8mfWnfHatPY8Gu3 Q2324fnWJbKnw== From: Geliang Tang To: Andrii Nakryiko , Eduard Zingerman , Mykola Lysenko , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Hao Luo , Jiri Olsa , Shuah Khan Cc: Geliang Tang , bpf@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH bpf-next 03/15] selftests/bpf: Use start_server_str in lwt_redirect Date: Wed, 24 Jul 2024 06:22:09 +0800 Message-ID: <44231acb3ed09db3bca33a4b5f959f0ec476efe3.1721771340.git.tanggeliang@kylinos.cn> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Geliang Tang AF_PACKET can be passed to start_server_str() now. Use it to simplify the code in lwt_redirect. In this test, use sprintf() to save the "ifindex" value into addr_str string, then pass it to the helper. Signed-off-by: Geliang Tang --- .../selftests/bpf/prog_tests/lwt_redirect.c | 21 +++++-------------- 1 file changed, 5 insertions(+), 16 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/lwt_redirect.c b/tools/testing/selftests/bpf/prog_tests/lwt_redirect.c index 835a1d756c16..f4c54bb7e416 100644 --- a/tools/testing/selftests/bpf/prog_tests/lwt_redirect.c +++ b/tools/testing/selftests/bpf/prog_tests/lwt_redirect.c @@ -94,30 +94,19 @@ static int new_packet_sock(const char *ifname) { int err = 0; int ignore_outgoing = 1; + char addr_str[32]; int ifindex = -1; int s = -1; - s = socket(AF_PACKET, SOCK_RAW, 0); - if (!ASSERT_GE(s, 0, "socket(AF_PACKET)")) - return -1; - ifindex = if_nametoindex(ifname); - if (!ASSERT_GE(ifindex, 0, "if_nametoindex")) { - close(s); + if (!ASSERT_GE(ifindex, 0, "if_nametoindex")) return -1; - } - struct sockaddr_ll addr = { - .sll_family = AF_PACKET, - .sll_protocol = htons(ETH_P_IP), - .sll_ifindex = ifindex, - }; + sprintf(addr_str, "%d", ifindex); - err = bind(s, (struct sockaddr *)&addr, sizeof(addr)); - if (!ASSERT_OK(err, "bind(AF_PACKET)")) { - close(s); + s = start_server_str(AF_PACKET, SOCK_RAW, addr_str, 0, NULL); + if (!ASSERT_OK_FD(s, "start_server_str")) return -1; - } /* Use packet socket to capture only the ingress, so we can distinguish * the case where a regression that actually redirects the packet to