From owner-dev-commits-src-main@freebsd.org Tue Feb 16 20:04:04 2021 Return-Path: Delivered-To: dev-commits-src-main@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 08492547374; Tue, 16 Feb 2021 20:04:04 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4DgBkW6nkDz3JKH; Tue, 16 Feb 2021 20:04:03 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id DC71917824; Tue, 16 Feb 2021 20:04:03 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 11GK43jq025266; Tue, 16 Feb 2021 20:04:03 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 11GK43PI025265; Tue, 16 Feb 2021 20:04:03 GMT (envelope-from git) Date: Tue, 16 Feb 2021 20:04:03 GMT Message-Id: <202102162004.11GK43PI025265@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: "Alexander V. Chernikov" Subject: git: 9fdbf7eef5c0 - main - Make in_localip_more() fib-aware. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: melifaro X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 9fdbf7eef5c006002769add15b1ebb8fa8d9e220 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-main@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for the main branch of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Feb 2021 20:04:04 -0000 The branch main has been updated by melifaro: URL: https://cgit.FreeBSD.org/src/commit/?id=9fdbf7eef5c006002769add15b1ebb8fa8d9e220 commit 9fdbf7eef5c006002769add15b1ebb8fa8d9e220 Author: Alexander V. Chernikov AuthorDate: 2021-02-16 20:00:46 +0000 Commit: Alexander V. Chernikov CommitDate: 2021-02-16 20:00:46 +0000 Make in_localip_more() fib-aware. It fixes loopback route installation for the interfaces in the different fibs using the same prefix. Reviewed By: donner PR: 189088 Differential Revision: https://reviews.freebsd.org/D28673 MFC after: 1 week --- sys/netinet/in.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/sys/netinet/in.c b/sys/netinet/in.c index eb58c3453cfc..bcf071a81e0e 100644 --- a/sys/netinet/in.c +++ b/sys/netinet/in.c @@ -163,18 +163,23 @@ in_ifhasaddr(struct ifnet *ifp, struct in_addr in) * the supplied one but with same IP address value. */ static struct in_ifaddr * -in_localip_more(struct in_ifaddr *ia) +in_localip_more(struct in_ifaddr *original_ia) { struct rm_priotracker in_ifa_tracker; - in_addr_t in = IA_SIN(ia)->sin_addr.s_addr; - struct in_ifaddr *it; + in_addr_t original_addr = IA_SIN(original_ia)->sin_addr.s_addr; + uint32_t original_fib = original_ia->ia_ifa.ifa_ifp->if_fib; + struct in_ifaddr *ia; IN_IFADDR_RLOCK(&in_ifa_tracker); - LIST_FOREACH(it, INADDR_HASH(in), ia_hash) { - if (it != ia && IA_SIN(it)->sin_addr.s_addr == in) { - ifa_ref(&it->ia_ifa); + LIST_FOREACH(ia, INADDR_HASH(original_addr), ia_hash) { + in_addr_t addr = IA_SIN(ia)->sin_addr.s_addr; + uint32_t fib = ia->ia_ifa.ifa_ifp->if_fib; + if (!V_rt_add_addr_allfibs && (original_fib != fib)) + continue; + if ((original_ia != ia) && (original_addr == addr)) { + ifa_ref(&ia->ia_ifa); IN_IFADDR_RUNLOCK(&in_ifa_tracker); - return (it); + return (ia); } } IN_IFADDR_RUNLOCK(&in_ifa_tracker); @@ -1007,11 +1012,6 @@ in_scrubprefix(struct in_ifaddr *target, u_int flags) if (ia_need_loopback_route(target) && (flags & LLE_STATIC)) { struct in_ifaddr *eia; - /* - * XXXME: add fib-aware in_localip. - * We definitely don't want to switch between - * prefixes in different fibs. - */ eia = in_localip_more(target); if (eia != NULL) {