From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,T_DKIMWL_WL_HIGH,USER_AGENT_GIT autolearn=ham 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 21D05C2BCA1 for ; Fri, 7 Jun 2019 22:38:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DC3B420840 for ; Fri, 7 Jun 2019 22:38:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559947122; bh=hefFaO5llMPR2l4B0U1XpbdcfUiRpqZKAfXbnOf7l4E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=uu8d70SEmzVqK94eyK6oOnhZFEMpTJOovB+QBUH3VwO6TR1pjsfemltnAFOSnFhqB 2md6AvxDBzO23IHuMKf7Ebxk9LZEL8L3I1jWLFG8cAjOLqnQ4LvtnUGrU/HTdAtCJ1 lr+aLha56qB0JFZu2NP0IRZgEtcYNaWhIKY2SwVA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731835AbfFGWil (ORCPT ); Fri, 7 Jun 2019 18:38:41 -0400 Received: from mail.kernel.org ([198.145.29.99]:48632 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731755AbfFGWiU (ORCPT ); Fri, 7 Jun 2019 18:38:20 -0400 Received: from kenny.it.cumulusnetworks.com. (fw.cumulusnetworks.com [216.129.126.126]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A6E0C20868; Fri, 7 Jun 2019 22:38:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559947099; bh=hefFaO5llMPR2l4B0U1XpbdcfUiRpqZKAfXbnOf7l4E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NbN7FLrJL8KHNOZhwlM8l7gcTa282x8ox90hMUH72T3dROX0W3cEjjG1JBsyx5M47 XielpsM2hB0895HiT4KqLdmOUR4oM9j2EF70UR1K5NyAZ/LJKqss1O1Y3Je3A3/Kej QpjLYzJ5kSEdUHfrFVOFgY6aGLvlTFwDagUNAlxM= From: David Ahern To: stephen@networkplumber.org Cc: netdev@vger.kernel.org, David Ahern Subject: [PATCH v2 iproute-next 05/10] libnetlink: Add helper to create nexthop dump request Date: Fri, 7 Jun 2019 15:38:11 -0700 Message-Id: <20190607223816.27512-6-dsahern@kernel.org> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190607223816.27512-1-dsahern@kernel.org> References: <20190607223816.27512-1-dsahern@kernel.org> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: David Ahern Add rtnl_nexthopdump_req to initiate a dump request of nexthop objects. Signed-off-by: David Ahern --- include/libnetlink.h | 4 ++++ lib/libnetlink.c | 27 +++++++++++++++++++++++++++ 2 files changed, 31 insertions(+) diff --git a/include/libnetlink.h b/include/libnetlink.h index 599b2c592f68..1ddba8dcd220 100644 --- a/include/libnetlink.h +++ b/include/libnetlink.h @@ -93,6 +93,10 @@ int rtnl_dump_request(struct rtnl_handle *rth, int type, void *req, int rtnl_dump_request_n(struct rtnl_handle *rth, struct nlmsghdr *n) __attribute__((warn_unused_result)); +int rtnl_nexthopdump_req(struct rtnl_handle *rth, int family, + req_filter_fn_t filter_fn) + __attribute__((warn_unused_result)); + struct rtnl_ctrl_data { int nsid; }; diff --git a/lib/libnetlink.c b/lib/libnetlink.c index eb85bbdf01ee..af2a3bbfd29b 100644 --- a/lib/libnetlink.c +++ b/lib/libnetlink.c @@ -25,6 +25,7 @@ #include #include #include +#include #include "libnetlink.h" @@ -252,6 +253,32 @@ int rtnl_open(struct rtnl_handle *rth, unsigned int subscriptions) return rtnl_open_byproto(rth, subscriptions, NETLINK_ROUTE); } +int rtnl_nexthopdump_req(struct rtnl_handle *rth, int family, + req_filter_fn_t filter_fn) +{ + struct { + struct nlmsghdr nlh; + struct nhmsg nhm; + char buf[128]; + } req = { + .nlh.nlmsg_len = NLMSG_LENGTH(sizeof(struct nhmsg)), + .nlh.nlmsg_type = RTM_GETNEXTHOP, + .nlh.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST, + .nlh.nlmsg_seq = rth->dump = ++rth->seq, + .nhm.nh_family = family, + }; + + if (filter_fn) { + int err; + + err = filter_fn(&req.nlh, sizeof(req)); + if (err) + return err; + } + + return send(rth->fd, &req, sizeof(req), 0); +} + int rtnl_addrdump_req(struct rtnl_handle *rth, int family, req_filter_fn_t filter_fn) { -- 2.11.0