From patchwork Fri Jul 7 19:30:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanislav Fomichev X-Patchwork-Id: 13305211 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 807EB182BA for ; Fri, 7 Jul 2023 19:30:39 +0000 (UTC) Received: from mail-yw1-x1149.google.com (mail-yw1-x1149.google.com [IPv6:2607:f8b0:4864:20::1149]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 13EC22D7D for ; Fri, 7 Jul 2023 12:30:29 -0700 (PDT) Received: by mail-yw1-x1149.google.com with SMTP id 00721157ae682-5734d919156so26090397b3.3 for ; Fri, 07 Jul 2023 12:30:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1688758228; x=1691350228; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=uP/xR8GNlI9E0++CqO6Or9j9eKuQF1wvhQ+qGbLlU6w=; b=XTJck82fPkG97J5gsOeXeYkqH8nCywY1DDfNbK8/nCi8t2cRVkhEjX8VEAXIHg7/Zk 8g6Kh8zn0HGfyoY1rXtGJmMTI79oYlidN/7ViT6Q3c4iAECAx/xkDR5s08nnVFf2T8xK XJtNYubm6/9qj6SSR7ZtaWfPq4QGnkORBbD+Oai538WBbEXAQ63/th5VRP+1HmV7rs00 7YILxTLE9vBCRh/N1XUKP5whua8XBXiOkxXaHkhIYE7CIK8t4v4ilzSXq8lGb48xwd+3 nmpMCdv1klmBA8Kz9Sz43YV66mRNR456QizOykw48EnUtcNoOdbF/J03eMmfAG9PQ1oI /ubQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688758228; x=1691350228; 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=uP/xR8GNlI9E0++CqO6Or9j9eKuQF1wvhQ+qGbLlU6w=; b=KkYlu78fY6zkwvPPYESiJ6Rtg1uhk+oDU+MbXVgmb6eEk9MhfAeqgZpDuN3ke6DWYv 8dC54ELZbpHKLAEVbHPoKBhNLfwutqjFeU5ybW2wJVFc6fBJXfmD9z47uc1cvKWt06ke qaskEPMzmU7261LrfqzyXSzlSFrySxKm1k2CuzEd5nn1gXmVOJMLMzeoQxP/dp9CaNFm Cb4mZqOn9IPIN8ZuLOhOVoVc7M+KlLmoHOdzVROaK+gnrwxUmxSl3zoWGRL8GVqkbMui hw2iirkEofrJ8c+qeDnA/YtV5Gpgq9jW3buwWlHkCT+jUHw1A1Ohvjrt/bPLoFM0U1KD DZ3w== X-Gm-Message-State: ABy/qLat6biww1f8eA09G+U69zCpZAnmb7SJDN7KQH+QhKlwN6Weud24 GcKMdKbFVLtMOKS//n/JmkMRCAIPy4y8WT0FeuL4O9JqsLczA0sJY+pHcRW6q40rQuiAzM36nHG h/oS8hXHlYG03oBdFBNyQjk6zxc+rs9Id1pqzwLwOgn1FCgsHwA== X-Google-Smtp-Source: APBJJlFgJMbRpngCZb0FDr/VhvFmrEwCo2d0zmU6ymIwzLko5drtS0s4gPqFvXqZBR5r/curoHpemlM= X-Received: from sdf.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5935]) (user=sdf job=sendgmr) by 2002:a81:4323:0:b0:56c:e585:8b17 with SMTP id q35-20020a814323000000b0056ce5858b17mr44285ywa.5.1688758227697; Fri, 07 Jul 2023 12:30:27 -0700 (PDT) Date: Fri, 7 Jul 2023 12:30:03 -0700 In-Reply-To: <20230707193006.1309662-1-sdf@google.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20230707193006.1309662-1-sdf@google.com> X-Mailer: git-send-email 2.41.0.255.g8b1d071c50-goog Message-ID: <20230707193006.1309662-12-sdf@google.com> Subject: [RFC bpf-next v3 11/14] 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, kuba@kernel.org, toke@kernel.org, willemb@google.com, dsahern@kernel.org, magnus.karlsson@intel.com, bjorn@kernel.org, maciej.fijalkowski@intel.com, hawk@kernel.org, netdev@vger.kernel.org, xdp-hints@xdp-project.net 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=unavailable 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 to filter out netdev in AF_XDP metadata selftests. The helper returns netns cookie of the current process. 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; /**