From patchwork Wed Jan 27 23:28:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanislav Fomichev X-Patchwork-Id: 12051199 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 50122C433DB for ; Wed, 27 Jan 2021 23:31:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2357360C40 for ; Wed, 27 Jan 2021 23:31:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235287AbhA0Xbq (ORCPT ); Wed, 27 Jan 2021 18:31:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48238 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232091AbhA0XbQ (ORCPT ); Wed, 27 Jan 2021 18:31:16 -0500 Received: from mail-qk1-x749.google.com (mail-qk1-x749.google.com [IPv6:2607:f8b0:4864:20::749]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 560E5C061797 for ; Wed, 27 Jan 2021 15:29:03 -0800 (PST) Received: by mail-qk1-x749.google.com with SMTP id r190so2796415qkf.19 for ; Wed, 27 Jan 2021 15:29:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=2xvw56uMQ1ecuAEADRnoIpPQc7Y6L/lmpB1+lxfp0II=; b=TDuQRdk+Cp6QcQnhveInYzgj7+qT95NpYNmFCkXwUUTt7AmCuuS5mjFKS+acp2a/JS OO7MVd/Vb9FDSvWK9R7iBYCqO+QWdXQ6+Xq1zTVvO34FryOdQc7V5kM0zBOt6HhY7RyP 3mLoi6btRxY3g+LZqlhB1RE2vkk8SsK/TJgKfF0AoJvC7EPg6ArGsQsfmvwGcKqyE+hT mw7RUHRXOLdvLlB9g66qKlkYQVsWlRqiGUA4uzkuO76vSj/Edxd/mMElWEPWVstW3tKt vwp/bNN4bpHsLk6Z3iMC/uptF2e6xMCQxazWsE5HeVfHb65tENcTdHQtC+gitFkm01Pc V61A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=2xvw56uMQ1ecuAEADRnoIpPQc7Y6L/lmpB1+lxfp0II=; b=MnMCgaQCFAomwoacxcFlZBiqOBrcTXXZfMJXeGqEbWYSj7q5aovjMNudMLyBkqCtVQ GMBjaGF+Mp+9zru1nMekjSSnI3etDTm7nU/o5DKSSZwn8Zi6s1elNP9pKj9B+EWo8Pjl tsUQhaKdXSHJ5Fa4ydOt+D9rJzLKthlay9Defdbn6pjlqYTyLiYf46FgiyN+TFNPu8TF 7H1ZiEqhoi08ZkkYYesRNKZJGpic4wQTHGX+YezE161p/n1hFUxZjvM6Jn5ilZ7mO9JH GZzGQQE1IC3mMLBNpzOKkzQguaKe9952aJWzsLp1itcpertsfyZG0t9XfMjhXsmmFm5O KcaQ== X-Gm-Message-State: AOAM530jzJDarUTacwmtzAQmbzoelkJVjBEtlbg1QphLTr5ElDl+tkEb qUDkiwJ5VyyDXGzilqlQT40kylylCcMBKCm6Uzp78FOv162Lqc7TN3OAFUDlnFoMyRD77d+kbGK k3xRwtybzDnIra4rHBIpFfTDKt8D3aJzqP3kCqid+xmybkgMNf7JrtQ== X-Google-Smtp-Source: ABdhPJygd+LWTq3OcfriVsvZs0yM5KI1hOAhIJIzAF5DNobIqEF+dhNKIzuPqQJh+sGbFq2CxJ6iUzI= Sender: "sdf via sendgmr" X-Received: from sdf2.svl.corp.google.com ([2620:15c:2c4:1:7220:84ff:fe09:7732]) (user=sdf job=sendgmr) by 2002:a0c:e28c:: with SMTP id r12mr3962060qvl.34.1611790142513; Wed, 27 Jan 2021 15:29:02 -0800 (PST) Date: Wed, 27 Jan 2021 15:28:53 -0800 In-Reply-To: <20210127232853.3753823-1-sdf@google.com> Message-Id: <20210127232853.3753823-5-sdf@google.com> Mime-Version: 1.0 References: <20210127232853.3753823-1-sdf@google.com> X-Mailer: git-send-email 2.30.0.280.ga3ce27912f-goog Subject: [PATCH bpf-next v2 4/4] bpf: enable bpf_{g,s}etsockopt in BPF_CGROUP_UDP{4,6}_RECVMSG From: Stanislav Fomichev To: netdev@vger.kernel.org, bpf@vger.kernel.org Cc: ast@kernel.org, daniel@iogearbox.net, Stanislav Fomichev Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Those hooks run as BPF_CGROUP_RUN_SA_PROG_LOCK and operate on a locked socket. Signed-off-by: Stanislav Fomichev --- net/core/filter.c | 4 ++++ tools/testing/selftests/bpf/progs/recvmsg4_prog.c | 5 +++++ tools/testing/selftests/bpf/progs/recvmsg6_prog.c | 5 +++++ 3 files changed, 14 insertions(+) diff --git a/net/core/filter.c b/net/core/filter.c index ba436b1d70c2..e15d4741719a 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -7023,6 +7023,8 @@ sock_addr_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) case BPF_CGROUP_INET6_BIND: case BPF_CGROUP_INET4_CONNECT: case BPF_CGROUP_INET6_CONNECT: + case BPF_CGROUP_UDP4_RECVMSG: + case BPF_CGROUP_UDP6_RECVMSG: case BPF_CGROUP_UDP4_SENDMSG: case BPF_CGROUP_UDP6_SENDMSG: case BPF_CGROUP_INET4_GETPEERNAME: @@ -7039,6 +7041,8 @@ sock_addr_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) case BPF_CGROUP_INET6_BIND: case BPF_CGROUP_INET4_CONNECT: case BPF_CGROUP_INET6_CONNECT: + case BPF_CGROUP_UDP4_RECVMSG: + case BPF_CGROUP_UDP6_RECVMSG: case BPF_CGROUP_UDP4_SENDMSG: case BPF_CGROUP_UDP6_SENDMSG: case BPF_CGROUP_INET4_GETPEERNAME: diff --git a/tools/testing/selftests/bpf/progs/recvmsg4_prog.c b/tools/testing/selftests/bpf/progs/recvmsg4_prog.c index fc2fe8a952fa..3d1ae8b3402f 100644 --- a/tools/testing/selftests/bpf/progs/recvmsg4_prog.c +++ b/tools/testing/selftests/bpf/progs/recvmsg4_prog.c @@ -8,6 +8,8 @@ #include #include +#include + #define SERV4_IP 0xc0a801feU /* 192.168.1.254 */ #define SERV4_PORT 4040 @@ -28,6 +30,9 @@ int recvmsg4_prog(struct bpf_sock_addr *ctx) if (ctx->type != SOCK_STREAM && ctx->type != SOCK_DGRAM) return 1; + if (!get_set_sk_priority(ctx)) + return 1; + ctx->user_ip4 = bpf_htonl(SERV4_IP); ctx->user_port = bpf_htons(SERV4_PORT); diff --git a/tools/testing/selftests/bpf/progs/recvmsg6_prog.c b/tools/testing/selftests/bpf/progs/recvmsg6_prog.c index 6060fd63324b..27dfb21b21b4 100644 --- a/tools/testing/selftests/bpf/progs/recvmsg6_prog.c +++ b/tools/testing/selftests/bpf/progs/recvmsg6_prog.c @@ -8,6 +8,8 @@ #include #include +#include + #define SERV6_IP_0 0xfaceb00c /* face:b00c:1234:5678::abcd */ #define SERV6_IP_1 0x12345678 #define SERV6_IP_2 0x00000000 @@ -31,6 +33,9 @@ int recvmsg6_prog(struct bpf_sock_addr *ctx) if (ctx->type != SOCK_STREAM && ctx->type != SOCK_DGRAM) return 1; + if (!get_set_sk_priority(ctx)) + return 1; + ctx->user_ip6[0] = bpf_htonl(SERV6_IP_0); ctx->user_ip6[1] = bpf_htonl(SERV6_IP_1); ctx->user_ip6[2] = bpf_htonl(SERV6_IP_2);