From patchwork Tue Jun 23 00:36:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yonghong Song X-Patchwork-Id: 217360 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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT 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 0D757C433E1 for ; Tue, 23 Jun 2020 00:36:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DF65E20738 for ; Tue, 23 Jun 2020 00:36:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="m2KDYyVl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732000AbgFWAgt (ORCPT ); Mon, 22 Jun 2020 20:36:49 -0400 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:29842 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1731994AbgFWAgo (ORCPT ); Mon, 22 Jun 2020 20:36:44 -0400 Received: from pps.filterd (m0001303.ppops.net [127.0.0.1]) by m0001303.ppops.net (8.16.0.42/8.16.0.42) with SMTP id 05N0YODK004453 for ; Mon, 22 Jun 2020 17:36:43 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=facebook; bh=fNwFnCXpJd6Isoq61aBHv3JXGA8bG2tNK6/6IwZLjWY=; b=m2KDYyVlMwY8+0t/wYF5ZiOdFeDT1/dbgu3S9QPWiBfYDMsCcZL+Ks8OQswCIbvmK2AP SNhCngv+SyT8WEbuVWWYAQSTfMjtT1RrAdm6X8F/3VpOTWkPCljsSU0VOs6xJEzSsuJU O0B4wnj/Csjg0c7HDnHwsugRREk25cTZ31o= Received: from maileast.thefacebook.com ([163.114.130.16]) by m0001303.ppops.net with ESMTP id 31se4nkcy5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Mon, 22 Jun 2020 17:36:43 -0700 Received: from intmgw003.08.frc2.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:83::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Mon, 22 Jun 2020 17:36:42 -0700 Received: by devbig003.ftw2.facebook.com (Postfix, from userid 128203) id D5A5D3705002; Mon, 22 Jun 2020 17:36:38 -0700 (PDT) Smtp-Origin-Hostprefix: devbig From: Yonghong Song Smtp-Origin-Hostname: devbig003.ftw2.facebook.com To: , CC: Alexei Starovoitov , Daniel Borkmann , , Martin KaFai Lau Smtp-Origin-Cluster: ftw2c04 Subject: [PATCH bpf-next v3 11/15] tools/bpf: refactor some net macros to libbpf bpf_tracing_net.h Date: Mon, 22 Jun 2020 17:36:38 -0700 Message-ID: <20200623003638.3074707-1-yhs@fb.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200623003626.3072825-1-yhs@fb.com> References: <20200623003626.3072825-1-yhs@fb.com> MIME-Version: 1.0 X-FB-Internal: Safe X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216, 18.0.687 definitions=2020-06-22_16:2020-06-22,2020-06-22 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 bulkscore=0 impostorscore=0 malwarescore=0 phishscore=0 mlxlogscore=999 spamscore=0 clxscore=1015 mlxscore=0 lowpriorityscore=0 priorityscore=1501 cotscore=-2147483648 adultscore=0 suspectscore=8 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006230000 X-FB-Internal: deliver Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Refactor bpf_iter_ipv6_route.c and bpf_iter_netlink.c so net macros, originally from various include/linux header files, are moved to a new libbpf installable header file bpf_tracing_net.h. The goal is to improve reuse so networking tracing programs do not need to copy these macros every time they use them. Signed-off-by: Yonghong Song --- tools/lib/bpf/Makefile | 1 + tools/lib/bpf/bpf_tracing_net.h | 16 ++++++++++++++++ .../selftests/bpf/progs/bpf_iter_ipv6_route.c | 7 +------ .../selftests/bpf/progs/bpf_iter_netlink.c | 4 +--- 4 files changed, 19 insertions(+), 9 deletions(-) create mode 100644 tools/lib/bpf/bpf_tracing_net.h diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile index bf8ed134cb8a..3d766c80eb78 100644 --- a/tools/lib/bpf/Makefile +++ b/tools/lib/bpf/Makefile @@ -257,6 +257,7 @@ install_headers: $(BPF_HELPER_DEFS) $(call do_install,bpf_helpers.h,$(prefix)/include/bpf,644); \ $(call do_install,$(BPF_HELPER_DEFS),$(prefix)/include/bpf,644); \ $(call do_install,bpf_tracing.h,$(prefix)/include/bpf,644); \ + $(call do_install,bpf_tracing_net.h,$(prefix)/include/bpf,644); \ $(call do_install,bpf_endian.h,$(prefix)/include/bpf,644); \ $(call do_install,bpf_core_read.h,$(prefix)/include/bpf,644); diff --git a/tools/lib/bpf/bpf_tracing_net.h b/tools/lib/bpf/bpf_tracing_net.h new file mode 100644 index 000000000000..1f38a1098727 --- /dev/null +++ b/tools/lib/bpf/bpf_tracing_net.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ +#ifndef __BPF_TRACING_NET_H__ +#define __BPF_TRACING_NET_H__ + +#define IFNAMSIZ 16 + +#define RTF_GATEWAY 0x0002 + +#define fib_nh_dev nh_common.nhc_dev +#define fib_nh_gw_family nh_common.nhc_gw_family +#define fib_nh_gw6 nh_common.nhc_gw.ipv6 + +#define sk_rmem_alloc sk_backlog.rmem_alloc +#define sk_refcnt __sk_common.skc_refcnt + +#endif diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c b/tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c index 93a452d1d136..64f952d68710 100644 --- a/tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c +++ b/tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c @@ -3,17 +3,12 @@ #include "bpf_iter.h" #include #include +#include char _license[] SEC("license") = "GPL"; extern bool CONFIG_IPV6_SUBTREES __kconfig __weak; -#define RTF_GATEWAY 0x0002 -#define IFNAMSIZ 16 -#define fib_nh_gw_family nh_common.nhc_gw_family -#define fib_nh_gw6 nh_common.nhc_gw.ipv6 -#define fib_nh_dev nh_common.nhc_dev - SEC("iter/ipv6_route") int dump_ipv6_route(struct bpf_iter__ipv6_route *ctx) { diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_netlink.c b/tools/testing/selftests/bpf/progs/bpf_iter_netlink.c index fda5036fdf75..cde88ad957a2 100644 --- a/tools/testing/selftests/bpf/progs/bpf_iter_netlink.c +++ b/tools/testing/selftests/bpf/progs/bpf_iter_netlink.c @@ -3,12 +3,10 @@ #include "bpf_iter.h" #include #include +#include char _license[] SEC("license") = "GPL"; -#define sk_rmem_alloc sk_backlog.rmem_alloc -#define sk_refcnt __sk_common.skc_refcnt - static inline struct inode *SOCK_INODE(struct socket *socket) { return &container_of(socket, struct socket_alloc, socket)->vfs_inode;