{"id":834090,"url":"http://patchwork.ozlabs.org/api/1.2/patches/834090/?format=json","web_url":"http://patchwork.ozlabs.org/project/netdev/patch/20171103205630.1083-5-jakub.kicinski@netronome.com/","project":{"id":7,"url":"http://patchwork.ozlabs.org/api/1.2/projects/7/?format=json","name":"Linux network development","link_name":"netdev","list_id":"netdev.vger.kernel.org","list_email":"netdev@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20171103205630.1083-5-jakub.kicinski@netronome.com>","list_archive_url":null,"date":"2017-11-03T20:56:19","name":"[net-next,v2,04/15] bpftool: print program device bound info","commit_ref":null,"pull_url":null,"state":"accepted","archived":true,"hash":"d64c0796dd80c35966fb0ffe10eb0af12bbfc192","submitter":{"id":67484,"url":"http://patchwork.ozlabs.org/api/1.2/people/67484/?format=json","name":"Jakub 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citizen","version":2,"mbox":"http://patchwork.ozlabs.org/series/11839/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/834090/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/834090/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=)","ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=netronome-com.20150623.gappssmtp.com\n\theader.i=@netronome-com.20150623.gappssmtp.com\n\theader.b=\"yRATAqLK\"; dkim-atps=neutral"],"Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3yTDlm6Y5hz9sBd\n\tfor ;\n\tSat, 4 Nov 2017 07:56:52 +1100 (AEDT)","(majordomo@vger.kernel.org) by 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alexei.starovoitov@gmail.com,\n\tdaniel@iogearbox.net, Jakub Kicinski ","Subject":"[PATCH net-next v2 04/15] bpftool: print program device bound info","Date":"Fri, 3 Nov 2017 13:56:19 -0700","Message-Id":"<20171103205630.1083-5-jakub.kicinski@netronome.com>","X-Mailer":"git-send-email 2.14.1","In-Reply-To":"<20171103205630.1083-1-jakub.kicinski@netronome.com>","References":"<20171103205630.1083-1-jakub.kicinski@netronome.com>","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netdev@vger.kernel.org"},"content":"If program is bound to a device, print the name of the relevant\ninterface or unknown if the netdev has since been removed.\n\nSigned-off-by: Jakub Kicinski \nReviewed-by: Simon Horman \nReviewed-by: Quentin Monnet \n---\n tools/bpf/bpftool/prog.c | 31 +++++++++++++++++++++++++++++++\n tools/include/uapi/linux/bpf.h | 7 +++++++\n 2 files changed, 38 insertions(+)","diff":"diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c\nindex 250f80fd46aa..d3ab808dc882 100644\n--- a/tools/bpf/bpftool/prog.c\n+++ b/tools/bpf/bpftool/prog.c\n@@ -41,6 +41,7 @@\n #include \n #include \n #include \n+#include \n #include \n #include \n \n@@ -229,6 +230,21 @@ static void print_prog_json(struct bpf_prog_info *info, int fd)\n \t\t info->tag[0], info->tag[1], info->tag[2], info->tag[3],\n \t\t info->tag[4], info->tag[5], info->tag[6], info->tag[7]);\n \n+\tif (info->status & BPF_PROG_STATUS_DEV_BOUND) {\n+\t\tjsonw_name(json_wtr, \"dev\");\n+\t\tif (info->ifindex) {\n+\t\t\tchar name[IF_NAMESIZE];\n+\n+\t\t\tif (!if_indextoname(info->ifindex, name))\n+\t\t\t\tjsonw_printf(json_wtr, \"\\\"ifindex:%d\\\"\",\n+\t\t\t\t\t info->ifindex);\n+\t\t\telse\n+\t\t\t\tjsonw_printf(json_wtr, \"\\\"%s\\\"\", name);\n+\t\t} else {\n+\t\t\tjsonw_printf(json_wtr, \"\\\"unknown\\\"\");\n+\t\t}\n+\t}\n+\n \tif (info->load_time) {\n \t\tchar buf[32];\n \n@@ -274,6 +290,21 @@ static void print_prog_plain(struct bpf_prog_info *info, int fd)\n \n \tprintf(\"tag \");\n \tfprint_hex(stdout, info->tag, BPF_TAG_SIZE, \"\");\n+\tprintf(\" \");\n+\n+\tif (info->status & BPF_PROG_STATUS_DEV_BOUND) {\n+\t\tprintf(\"dev \");\n+\t\tif (info->ifindex) {\n+\t\t\tchar name[IF_NAMESIZE];\n+\n+\t\t\tif (!if_indextoname(info->ifindex, name))\n+\t\t\t\tprintf(\"ifindex:%d \", info->ifindex);\n+\t\t\telse\n+\t\t\t\tprintf(\"%s \", name);\n+\t\t} else {\n+\t\t\tprintf(\"unknown \");\n+\t\t}\n+\t}\n \tprintf(\"\\n\");\n \n \tif (info->load_time) {\ndiff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h\nindex 7cebba491011..e92f62cf933a 100644\n--- a/tools/include/uapi/linux/bpf.h\n+++ b/tools/include/uapi/linux/bpf.h\n@@ -259,6 +259,7 @@ union bpf_attr {\n \t\t__u32\t\tkern_version;\t/* checked when prog_type=kprobe */\n \t\t__u32\t\tprog_flags;\n \t\tchar\t\tprog_name[BPF_OBJ_NAME_LEN];\n+\t\t__u32\t\tprog_target_ifindex;\t/* ifindex of netdev to prep for */\n \t};\n \n \tstruct { /* anonymous struct used by BPF_OBJ_* commands */\n@@ -893,6 +894,10 @@ enum sk_action {\n \n #define BPF_TAG_SIZE\t8\n \n+enum bpf_prog_status {\n+\tBPF_PROG_STATUS_DEV_BOUND\t= (1 << 0),\n+};\n+\n struct bpf_prog_info {\n \t__u32 type;\n \t__u32 id;\n@@ -906,6 +911,8 @@ struct bpf_prog_info {\n \t__u32 nr_map_ids;\n \t__aligned_u64 map_ids;\n \tchar name[BPF_OBJ_NAME_LEN];\n+\t__u32 ifindex;\n+\t__u32 status;\n } __attribute__((aligned(8)));\n \n struct bpf_map_info {\n","prefixes":["net-next","v2","04/15"]}