From patchwork Wed Sep 27 22:58:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrii Nakryiko X-Patchwork-Id: 13401774 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C2BFDE810D5 for ; Wed, 27 Sep 2023 23:01:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229954AbjI0XB5 convert rfc822-to-8bit (ORCPT ); Wed, 27 Sep 2023 19:01:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44884 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229844AbjI0XBz (ORCPT ); Wed, 27 Sep 2023 19:01:55 -0400 Received: from mx0a-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 19689191 for ; Wed, 27 Sep 2023 16:01:52 -0700 (PDT) Received: from pps.filterd (m0001303.ppops.net [127.0.0.1]) by m0001303.ppops.net (8.17.1.19/8.17.1.19) with ESMTP id 38RKBOcg018679 for ; Wed, 27 Sep 2023 16:01:51 -0700 Received: from maileast.thefacebook.com ([163.114.130.16]) by m0001303.ppops.net (PPS) with ESMTPS id 3tcpcxvmpx-5 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Wed, 27 Sep 2023 16:01:51 -0700 Received: from twshared44805.48.prn1.facebook.com (2620:10d:c0a8:1c::1b) by mail.thefacebook.com (2620:10d:c0a8:83::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.23; Wed, 27 Sep 2023 16:01:45 -0700 Received: by devbig019.vll3.facebook.com (Postfix, from userid 137359) id 609FE38C9A766; Wed, 27 Sep 2023 15:59:03 -0700 (PDT) From: Andrii Nakryiko To: , CC: , , , , , , Subject: [PATCH v6 bpf-next 12/13] libbpf: add BPF token support to bpf_prog_load() API Date: Wed, 27 Sep 2023 15:58:08 -0700 Message-ID: <20230927225809.2049655-13-andrii@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230927225809.2049655-1-andrii@kernel.org> References: <20230927225809.2049655-1-andrii@kernel.org> MIME-Version: 1.0 X-FB-Internal: Safe X-Proofpoint-ORIG-GUID: QSNJNPoJZSYC8pNL--xLZ8k3EjTJVhXB X-Proofpoint-GUID: QSNJNPoJZSYC8pNL--xLZ8k3EjTJVhXB X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-09-27_15,2023-09-27_01,2023-05-22_02 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Wire through token_fd into bpf_prog_load(). Signed-off-by: Andrii Nakryiko --- tools/lib/bpf/bpf.c | 3 ++- tools/lib/bpf/bpf.h | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 4547ae1037af..5a238831b4ff 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -234,7 +234,7 @@ int bpf_prog_load(enum bpf_prog_type prog_type, const struct bpf_insn *insns, size_t insn_cnt, struct bpf_prog_load_opts *opts) { - const size_t attr_sz = offsetofend(union bpf_attr, log_true_size); + const size_t attr_sz = offsetofend(union bpf_attr, prog_token_fd); void *finfo = NULL, *linfo = NULL; const char *func_info, *line_info; __u32 log_size, log_level, attach_prog_fd, attach_btf_obj_fd; @@ -263,6 +263,7 @@ int bpf_prog_load(enum bpf_prog_type prog_type, attr.prog_flags = OPTS_GET(opts, prog_flags, 0); attr.prog_ifindex = OPTS_GET(opts, prog_ifindex, 0); attr.kern_version = OPTS_GET(opts, kern_version, 0); + attr.prog_token_fd = OPTS_GET(opts, token_fd, 0); if (prog_name && kernel_supports(NULL, FEAT_PROG_NAME)) libbpf_strlcpy(attr.prog_name, prog_name, sizeof(attr.prog_name)); diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h index d7df5543f402..edc0cab465d6 100644 --- a/tools/lib/bpf/bpf.h +++ b/tools/lib/bpf/bpf.h @@ -105,9 +105,10 @@ struct bpf_prog_load_opts { * If kernel doesn't support this feature, log_size is left unchanged. */ __u32 log_true_size; + __u32 token_fd; size_t :0; }; -#define bpf_prog_load_opts__last_field log_true_size +#define bpf_prog_load_opts__last_field token_fd LIBBPF_API int bpf_prog_load(enum bpf_prog_type prog_type, const char *prog_name, const char *license,