From patchwork Sun Oct 13 07:15:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gur Stavi X-Patchwork-Id: 13833290 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) (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 734DF770E4; Sun, 13 Oct 2024 07:17:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.176.79.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728803861; cv=none; b=EqcHXIdlAe8iCSe7bFHEYmAsdTsgxTmJh+YpjJGEmUcndKCoOPquLA9S+SI1+bj8ExOFw/Co0vjezODH4MvmItJDNhn9b+FI0n6qBuqVbCS8+DYDFtLvRFD+WW0BGoOJLm8YAzpIxq9srLob4W27kWqUQ3bRkHN/nJ77A/FIB9o= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728803861; c=relaxed/simple; bh=n6Pyknfvtq8jCstOTEB1lqtTghs0zco2bDfrzky9UhI=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=fzSC8TEhRs3ZnoifakOnpAkba+5Dr1atSxBovUJWJjEOZvjrFFAib1OoaWFRmCiFA4maqba07FK7JOuaqKfA/84AJT0FocRSyUwEIWJS8NJrdBDBzfQF/EzJE2zex9AZLf4nc8aHaxUEmAGWx/djOXXKevdwzglnACfgySDKxCU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=185.176.79.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.18.186.231]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4XRBVG4zjxz6K6KJ; Sun, 13 Oct 2024 15:16:06 +0800 (CST) Received: from frapeml500005.china.huawei.com (unknown [7.182.85.13]) by mail.maildlp.com (Postfix) with ESMTPS id 41AD41400CA; Sun, 13 Oct 2024 15:17:37 +0800 (CST) Received: from china (10.200.201.82) by frapeml500005.china.huawei.com (7.182.85.13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Sun, 13 Oct 2024 09:17:31 +0200 From: Gur Stavi To: Gur Stavi CC: , , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Shuah Khan , Willem de Bruijn , Subject: [PATCH net-next v04 2/3] selftests: net/psock_fanout: socket joins fanout when link is down Date: Sun, 13 Oct 2024 10:15:26 +0300 Message-ID: <6f4a506ed5f08f8fc00a966dec8febd1030c6e98.1728802323.git.gur.stavi@huawei.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To frapeml500005.china.huawei.com (7.182.85.13) Modify test_control_group to have toggle parameter. When toggle is non-zero, loopback device will be set down for the initialization of fd[1] which is still expected to successfully join the fanout. Signed-off-by: Gur Stavi Reviewed-by: Willem de Bruijn --- tools/testing/selftests/net/psock_fanout.c | 42 ++++++++++++++++++++-- 1 file changed, 39 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/net/psock_fanout.c b/tools/testing/selftests/net/psock_fanout.c index 4f31e92ebd96..acdfae8f8a9a 100644 --- a/tools/testing/selftests/net/psock_fanout.c +++ b/tools/testing/selftests/net/psock_fanout.c @@ -48,6 +48,7 @@ #include #include #include +#include #include #include #include @@ -59,6 +60,33 @@ static uint32_t cfg_max_num_members; +static void loopback_set_up_down(int state_up) +{ + struct ifreq ifreq = {}; + int fd, err; + + fd = socket(AF_PACKET, SOCK_RAW, 0); + if (fd < 0) { + perror("socket loopback"); + exit(1); + } + strcpy(ifreq.ifr_name, "lo"); + err = ioctl(fd, SIOCGIFFLAGS, &ifreq); + if (err) { + perror("SIOCGIFFLAGS"); + exit(1); + } + if (state_up != !!(ifreq.ifr_flags & IFF_UP)) { + ifreq.ifr_flags ^= IFF_UP; + err = ioctl(fd, SIOCSIFFLAGS, &ifreq); + if (err) { + perror("SIOCSIFFLAGS"); + exit(1); + } + } + close(fd); +} + /* Open a socket in a given fanout mode. * @return -1 if mode is bad, a valid socket otherwise */ static int sock_fanout_open(uint16_t typeflags, uint16_t group_id) @@ -264,17 +292,22 @@ static void test_control_single(void) } /* Test illegal group with different modes or flags */ -static void test_control_group(void) +static void test_control_group(int toggle) { int fds[2]; - fprintf(stderr, "test: control multiple sockets\n"); + if (toggle) + fprintf(stderr, "test: control multiple sockets with link down toggle\n"); + else + fprintf(stderr, "test: control multiple sockets\n"); fds[0] = sock_fanout_open(PACKET_FANOUT_HASH, 0); if (fds[0] == -1) { fprintf(stderr, "ERROR: failed to open HASH socket\n"); exit(1); } + if (toggle) + loopback_set_up_down(0); if (sock_fanout_open(PACKET_FANOUT_HASH | PACKET_FANOUT_FLAG_DEFRAG, 0) != -1) { fprintf(stderr, "ERROR: joined group with wrong flag defrag\n"); @@ -294,6 +327,8 @@ static void test_control_group(void) fprintf(stderr, "ERROR: failed to join group\n"); exit(1); } + if (toggle) + loopback_set_up_down(1); if (close(fds[1]) || close(fds[0])) { fprintf(stderr, "ERROR: closing sockets\n"); exit(1); @@ -489,7 +524,8 @@ int main(int argc, char **argv) int port_off = 2, tries = 20, ret; test_control_single(); - test_control_group(); + test_control_group(0); + test_control_group(1); test_control_group_max_num_members(); test_unique_fanout_group_ids();