From patchwork Thu Jun 3 04:49:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sergey Ryazanov X-Patchwork-Id: 12296063 X-Patchwork-Delegate: johannes@sipsolutions.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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 82ED9C47097 for ; Thu, 3 Jun 2021 04:50:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6479B60232 for ; Thu, 3 Jun 2021 04:50:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229707AbhFCEvy (ORCPT ); Thu, 3 Jun 2021 00:51:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229663AbhFCEvx (ORCPT ); Thu, 3 Jun 2021 00:51:53 -0400 Received: from mail-lf1-x130.google.com (mail-lf1-x130.google.com [IPv6:2a00:1450:4864:20::130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 651D8C06175F; Wed, 2 Jun 2021 21:50:09 -0700 (PDT) Received: by mail-lf1-x130.google.com with SMTP id p17so6087977lfc.6; Wed, 02 Jun 2021 21:50:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=fTdsf02HyDf/I+gguBoc3k+gpG0A/WMGol4iK1ZVOZc=; b=DLfK+DCaDJmEF4dYS5CQKPrECP6jb1y+ZiBEhRRuerKfnChFMTjpVj24fSQcGDjRjR uUeRleW0o+ZNI1GizFu5PKmdxWaqSFSgzwmtXDhXEg1pDV3BZJ/bXLmApFIVDhRDLte5 iMzJxNmJvxD+6DWwO25vNP+3Kg539DIP749NpajYAcsSbe4iU16Tj95Ap/wbneRahW68 Q5jkm/We+lkPKCehHWeXMr1BmB7V/fgC5UxBkmy/2GQ6GlP2arGXRMHjKwxr0P1NAO+i Put0R5ox5lFtIpLYvkY4lN0OlyakvwykLCUqothg0pcOCeVUnBDH64rp/BvZ+uwIEIlv /JcQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=fTdsf02HyDf/I+gguBoc3k+gpG0A/WMGol4iK1ZVOZc=; b=b9cTwqZEjJ3m0Sc8IVwcEyTQOD/7RtNrfSfkDNT4NFD4Z+c7voRGYCJvZjxG0Hn6Ao keAO5MvoqjUDdXEXZIfanc54ILY7i2BtbnvCGx+VYZfhugUWLOs7xSoVsMqES4GFNDJM kNbFlrFX/wrS7I9fuLk0Dg97gT0FQ+REEDPKG6QdBM4kmmb+8muEpC5OLVxzfLuYzQyY Wo7IdOARrQ/0hzSsdDN4+9HgBd2dOej4e1VBTSI2wcD5FSu+u0TPdD7BM2da77IPp/4q DwHBwlktNTbcwx1+WTjFXLVWWoIk9soy5Wwuh1lQ7XGkolVBYsL1wcDHI25s//6Gd6MH 3i1Q== X-Gm-Message-State: AOAM533UcVzkiEuO6j/NFQB6qMITsbh4rszBqZl9VmE/c7KOtTgg9aI8 OWOZ5k037H5VNvjER+mKSFA= X-Google-Smtp-Source: ABdhPJyg23KAcM5+N2uW9j16dVyl5nYDhlMNtIg5cotw10Lw+W6ozJ21KaN+DHANOCgmAODg4JQ60Q== X-Received: by 2002:a19:4086:: with SMTP id n128mr25173479lfa.464.1622695807834; Wed, 02 Jun 2021 21:50:07 -0700 (PDT) Received: from rsa-laptop.internal.lan ([217.25.229.52]) by smtp.gmail.com with ESMTPSA id z2sm191328lfe.229.2021.06.02.21.50.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Jun 2021 21:50:07 -0700 (PDT) From: Sergey Ryazanov To: Johannes Berg , Loic Poulain Cc: M Chetan Kumar , linux-wireless@vger.kernel.org, netdev@vger.kernel.org Subject: [RFC 5/6 iproute2] iplink: add support for parent device Date: Thu, 3 Jun 2021 07:49:53 +0300 Message-Id: <20210603044954.8091-6-ryazanov.s.a@gmail.com> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210603044954.8091-1-ryazanov.s.a@gmail.com> References: <20210603044954.8091-1-ryazanov.s.a@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Add support for specifying a parent device (struct device) by its name during the link creation and printing parent name in the links list. This option will be used to create WWAN links and possibly by other device classes that do not have a "natural parent netdev". Signed-off-by: Sergey Ryazanov --- ip/ipaddress.c | 7 +++++++ ip/iplink.c | 6 +++++- 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/ip/ipaddress.c b/ip/ipaddress.c index cfb24f5c..98f25a5b 100644 --- a/ip/ipaddress.c +++ b/ip/ipaddress.c @@ -1176,6 +1176,13 @@ int print_linkinfo(struct nlmsghdr *n, void *arg) RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]), b1, sizeof(b1))); } + + if (tb[IFLA_PARENT_DEV_NAME]) { + print_string(PRINT_ANY, + "parentdev_name", + "parentdev-name %s ", + rta_getattr_str(tb[IFLA_PARENT_DEV_NAME])); + } } if ((do_link || show_details) && tb[IFLA_IFALIAS]) { diff --git a/ip/iplink.c b/ip/iplink.c index faafd7e8..190ce7d9 100644 --- a/ip/iplink.c +++ b/ip/iplink.c @@ -63,7 +63,7 @@ void iplink_usage(void) { if (iplink_have_newlink()) { fprintf(stderr, - "Usage: ip link add [link DEV] [ name ] NAME\n" + "Usage: ip link add [link DEV | parentdev-name NAME] [ name ] NAME\n" " [ txqueuelen PACKETS ]\n" " [ address LLADDR ]\n" " [ broadcast LLADDR ]\n" @@ -938,6 +938,10 @@ int iplink_parse(int argc, char **argv, struct iplink_req *req, char **type) *argv); addattr32(&req->n, sizeof(*req), IFLA_GSO_MAX_SEGS, max_segs); + } else if (strcmp(*argv, "parentdev-name") == 0) { + NEXT_ARG(); + addattr_l(&req->n, sizeof(*req), IFLA_PARENT_DEV_NAME, + *argv, strlen(*argv) + 1); } else { if (matches(*argv, "help") == 0) usage();