From patchwork Thu Apr 4 02:53:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yonghong Song X-Patchwork-Id: 13616878 X-Patchwork-Delegate: bpf@iogearbox.net Received: from 66-220-155-179.mail-mxout.facebook.com (66-220-155-179.mail-mxout.facebook.com [66.220.155.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 376143233 for ; Thu, 4 Apr 2024 02:53:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=66.220.155.179 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712199210; cv=none; b=nn82fX7oS+rELwdQ+ZDHmMJdryRNl1yf8uCYQw+DU1y2WbBkPOGTjOJzUEDPRKWXkCSHZq9PrRTlId7lzUqX9P/6yBTYaY8CGXfXZLexU6gAjqbOc2vRiYoetbmV0de4jUB/JiqidNwHZIr/nSG1GRzr6BKCjzFjycVO/JJxD1E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712199210; c=relaxed/simple; bh=Vt/5OHAvvtqqXf0Mbp2y/FGwyc7dcDz5fJOWmq6CVJA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XCmXRcr8B2I9Fox1CJMv5503/MULlLWwrlTLCFwXbLx4NdmL6yzSvwuP6xl4aWAvD2l5x3D+vpR/2CSLs7v//EO7rjNuZQhB3J7q74jNHz6KNjfi99m6jE62fVtAphU3o/tMX/S+Yg7Hes2pFAgFv3Wg2GPwzov7/IHofmYBv58= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.dev; spf=fail smtp.mailfrom=linux.dev; arc=none smtp.client-ip=66.220.155.179 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=linux.dev Received: by devbig309.ftw3.facebook.com (Postfix, from userid 128203) id 0825829CEB19; Wed, 3 Apr 2024 19:53:16 -0700 (PDT) From: Yonghong Song To: bpf@vger.kernel.org Cc: Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann , Jakub Sitnicki , John Fastabend , kernel-team@fb.com, Martin KaFai Lau , Eduard Zingerman Subject: [PATCH bpf-next v4 2/5] libbpf: Add bpf_link support for BPF_PROG_TYPE_SOCKMAP Date: Wed, 3 Apr 2024 19:53:16 -0700 Message-ID: <20240404025316.2212069-1-yonghong.song@linux.dev> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240404025305.2210999-1-yonghong.song@linux.dev> References: <20240404025305.2210999-1-yonghong.song@linux.dev> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: bpf@iogearbox.net Introduce a libbpf API function bpf_program__attach_sockmap() which allow user to get a bpf_link for their corresponding programs. Acked-by: Eduard Zingerman Signed-off-by: Yonghong Song Reviewed-by: John Fastabend Acked-by: Andrii Nakryiko --- tools/lib/bpf/libbpf.c | 7 +++++++ tools/lib/bpf/libbpf.h | 2 ++ tools/lib/bpf/libbpf.map | 6 ++++++ tools/lib/bpf/libbpf_version.h | 2 +- 4 files changed, 16 insertions(+), 1 deletion(-) diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index b091154bc5b5..97eb6e5dd7c8 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -149,6 +149,7 @@ static const char * const link_type_name[] = { [BPF_LINK_TYPE_TCX] = "tcx", [BPF_LINK_TYPE_UPROBE_MULTI] = "uprobe_multi", [BPF_LINK_TYPE_NETKIT] = "netkit", + [BPF_LINK_TYPE_SOCKMAP] = "sockmap", }; static const char * const map_type_name[] = { @@ -12533,6 +12534,12 @@ bpf_program__attach_netns(const struct bpf_program *prog, int netns_fd) return bpf_program_attach_fd(prog, netns_fd, "netns", NULL); } +struct bpf_link * +bpf_program__attach_sockmap(const struct bpf_program *prog, int map_fd) +{ + return bpf_program_attach_fd(prog, map_fd, "sockmap", NULL); +} + struct bpf_link *bpf_program__attach_xdp(const struct bpf_program *prog, int ifindex) { /* target_fd/target_ifindex use the same field in LINK_CREATE */ diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index f88ab50c0229..4c7ada03bf4f 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -795,6 +795,8 @@ bpf_program__attach_cgroup(const struct bpf_program *prog, int cgroup_fd); LIBBPF_API struct bpf_link * bpf_program__attach_netns(const struct bpf_program *prog, int netns_fd); LIBBPF_API struct bpf_link * +bpf_program__attach_sockmap(const struct bpf_program *prog, int map_fd); +LIBBPF_API struct bpf_link * bpf_program__attach_xdp(const struct bpf_program *prog, int ifindex); LIBBPF_API struct bpf_link * bpf_program__attach_freplace(const struct bpf_program *prog, diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map index 51732ecb1385..015737439007 100644 --- a/tools/lib/bpf/libbpf.map +++ b/tools/lib/bpf/libbpf.map @@ -411,8 +411,14 @@ LIBBPF_1.3.0 { LIBBPF_1.4.0 { global: bpf_program__attach_raw_tracepoint_opts; + bpf_program__attach_sockmap; bpf_raw_tracepoint_open_opts; bpf_token_create; btf__new_split; btf_ext__raw_data; } LIBBPF_1.3.0; + +LIBBPF_1.5.0 { + global: + bpf_program__attach_sockmap; +} LIBBPF_1.4.0; diff --git a/tools/lib/bpf/libbpf_version.h b/tools/lib/bpf/libbpf_version.h index e783a47da815..d6e5eff967cb 100644 --- a/tools/lib/bpf/libbpf_version.h +++ b/tools/lib/bpf/libbpf_version.h @@ -4,6 +4,6 @@ #define __LIBBPF_VERSION_H #define LIBBPF_MAJOR_VERSION 1 -#define LIBBPF_MINOR_VERSION 4 +#define LIBBPF_MINOR_VERSION 5 #endif /* __LIBBPF_VERSION_H */