From patchwork Wed Jun 21 17:02:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanislav Fomichev X-Patchwork-Id: 13287731 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 E901F19932 for ; Wed, 21 Jun 2023 17:03:02 +0000 (UTC) Received: from mail-pj1-x104a.google.com (mail-pj1-x104a.google.com [IPv6:2607:f8b0:4864:20::104a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9B9FA10C for ; Wed, 21 Jun 2023 10:03:01 -0700 (PDT) Received: by mail-pj1-x104a.google.com with SMTP id 98e67ed59e1d1-25e7fe2fb9bso2875933a91.3 for ; Wed, 21 Jun 2023 10:03:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1687366981; x=1689958981; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=GqzQApHhMin8VkBURTnRCTSovI6vRxx1tWmRLUB4Gqs=; b=4zVrGLl70cCQsEam/VuH1reik/sXInjP2h75Cd1XqJpcbkxBgocdqnz4m3dhZng1zW 2wySJLRXIG0f8vhxlS4JP6U803n+QjX3A2vo+n+j5qGh7d6/VEN74JcJ5Ux2RK6Yk0DR kTje1E9HcEJuU6nO/V3hXUXG8YbmZCMXZklwkWZ07tFb9DcIf1UcmvFFCCkYE3afS4dz dnN49yh9mpXhIl+rO4vWLjpI1Pt+sawYat8G0ybFNkHjGHcb+ddXTgtb8GyDwwbWAP0n Iz3t1nVfg+iBPz0mg7ep77YWAJN7JNulqfBrz6x17TdqtP+OlejzNUoBPo4UDy2gXiDk H12w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687366981; x=1689958981; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=GqzQApHhMin8VkBURTnRCTSovI6vRxx1tWmRLUB4Gqs=; b=EnnxqBxO+TQ2qgYiKXsYZZQ23b41+yhDSXcUZyC4Z7vfcJLnD21AHpZLfyn/I2SLZz P/SohwBM4rxafJFCPkL7gXeykxJ2R2tRDgdTNbuw1dVpfrNKnYodb4ayk529NasK5ZlH rDbHwQEeOjM0HwjhKkbUdDs0wKU45U2uFcMb481sISXa9TavfAmudJgrVq0Avn/oihrZ Q2PBw2PFzZcJNkxY/kWv8vjcy0/6lKzo2SKgTVfCxb21VDpcoERru3j/de0WDl+tCP4b eAbbejwxss4Q4/JIgnVTmM2XxZNqhCyulL7tX8zaAdu196eeeVV4atVRRx5Qm+KJzb9U WcAg== X-Gm-Message-State: AC+VfDzbkRZ9YxtonKRjVNl75ROjxMO5fUBOA6OHQ/n8W4g48CSBfyS7 0cP/xtSI9wOH421N0QlkVrMFq8DfF9n8k2LRccLvGv2vazNRNVXUgDy21EE4S5eZAfsRxfCWgHb Y/NJQfPJ4Q9dOszKQWjVUvH9NTRBqCYAP0xqhjOoVCwFj86NmQg== X-Google-Smtp-Source: ACHHUZ7weWorroVTGt8F/JdLZRT+7IQ5TKHAqhzsttedPPzlsv8xagQtAuCbgamA1zqw3sRdjYZPsmc= X-Received: from sdf.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5935]) (user=sdf job=sendgmr) by 2002:a17:90a:c28a:b0:255:f691:9289 with SMTP id f10-20020a17090ac28a00b00255f6919289mr2234070pjt.9.1687366980806; Wed, 21 Jun 2023 10:03:00 -0700 (PDT) Date: Wed, 21 Jun 2023 10:02:41 -0700 In-Reply-To: <20230621170244.1283336-1-sdf@google.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20230621170244.1283336-1-sdf@google.com> X-Mailer: git-send-email 2.41.0.162.gfafddb0af9-goog Message-ID: <20230621170244.1283336-9-sdf@google.com> Subject: [RFC bpf-next v2 08/11] selftests/bpf: Add helper to query current netns cookie From: Stanislav Fomichev To: bpf@vger.kernel.org Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, martin.lau@linux.dev, song@kernel.org, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com, haoluo@google.com, jolsa@kernel.org X-Spam-Status: No, score=-9.6 required=5.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net X-Patchwork-State: RFC Will be used by the subsequent selftests. Signed-off-by: Stanislav Fomichev --- tools/testing/selftests/bpf/network_helpers.c | 21 +++++++++++++++++++ tools/testing/selftests/bpf/network_helpers.h | 1 + 2 files changed, 22 insertions(+) diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c index a105c0cd008a..34102fce5a88 100644 --- a/tools/testing/selftests/bpf/network_helpers.c +++ b/tools/testing/selftests/bpf/network_helpers.c @@ -450,3 +450,24 @@ int get_socket_local_port(int sock_fd) return -1; } + +#ifndef SO_NETNS_COOKIE +#define SO_NETNS_COOKIE 71 +#endif + +__u64 get_net_cookie(void) +{ + socklen_t optlen; + __u64 optval = 0; + int fd; + + fd = socket(AF_LOCAL, SOCK_DGRAM, 0); + if (fd >= 0) { + optlen = sizeof(optval); + getsockopt(fd, SOL_SOCKET, SO_NETNS_COOKIE, &optval, &optlen); + close(fd); + } + + return optval; +} + diff --git a/tools/testing/selftests/bpf/network_helpers.h b/tools/testing/selftests/bpf/network_helpers.h index 694185644da6..380047161aac 100644 --- a/tools/testing/selftests/bpf/network_helpers.h +++ b/tools/testing/selftests/bpf/network_helpers.h @@ -57,6 +57,7 @@ int make_sockaddr(int family, const char *addr_str, __u16 port, struct sockaddr_storage *addr, socklen_t *len); char *ping_command(int family); int get_socket_local_port(int sock_fd); +__u64 get_net_cookie(void); struct nstoken; /**