From owner-dev-commits-src-branches@freebsd.org Mon Apr 19 19:03:15 2021 Return-Path: Delivered-To: dev-commits-src-branches@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 483B65FBB70; Mon, 19 Apr 2021 19:03:15 +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 4FPGRl1bJnz4kXB; Mon, 19 Apr 2021 19:03:15 +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 29434246BF; Mon, 19 Apr 2021 19:03:15 +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 13JJ3F45086966; Mon, 19 Apr 2021 19:03:15 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 13JJ3Ffd086965; Mon, 19 Apr 2021 19:03:15 GMT (envelope-from git) Date: Mon, 19 Apr 2021 19:03:15 GMT Message-Id: <202104191903.13JJ3Ffd086965@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: "Alexander V. Chernikov" Subject: git: de703e98e6c8 - stable/13 - Fix direct route installation with net/bird. 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/stable/13 X-Git-Reftype: branch X-Git-Commit: de703e98e6c863874aa6012e3ce1a61eee58c846 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-branches@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commits to the stable branches of the FreeBSD src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Apr 2021 19:03:15 -0000 The branch stable/13 has been updated by melifaro: URL: https://cgit.FreeBSD.org/src/commit/?id=de703e98e6c863874aa6012e3ce1a61eee58c846 commit de703e98e6c863874aa6012e3ce1a61eee58c846 Author: Alexander V. Chernikov AuthorDate: 2021-04-10 15:25:24 +0000 Commit: Alexander V. Chernikov CommitDate: 2021-04-19 18:52:57 +0000 Fix direct route installation with net/bird. Slighly relax the gateway validation rules imposed by the 2fe5a79425c7, by requiring only first 8 bytes (everyhing before sdl_data to be present in the AF_LINK gateway. Reported by: olivier PR: 255089 (cherry picked from commit 7f5f3fcc32bfa553faa007579dfcaed84be3b047) --- sys/net/rtsock.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/sys/net/rtsock.c b/sys/net/rtsock.c index 12e485f917c8..c0996d318fb2 100644 --- a/sys/net/rtsock.c +++ b/sys/net/rtsock.c @@ -1381,20 +1381,21 @@ cleanup_xaddrs_gateway(struct rt_addrinfo *info) #endif case AF_LINK: { - struct sockaddr_dl_short *gw_sdl; + struct sockaddr_dl *gw_sdl; - gw_sdl = (struct sockaddr_dl_short *)gw; - if (gw_sdl->sdl_len < sizeof(struct sockaddr_dl_short)) { + size_t sdl_min_len = offsetof(struct sockaddr_dl, sdl_data); + gw_sdl = (struct sockaddr_dl *)gw; + if (gw_sdl->sdl_len < sdl_min_len) { printf("gw sdl_len too small\n"); return (EINVAL); } const struct sockaddr_dl_short sdl = { .sdl_family = AF_LINK, - .sdl_len = sizeof(struct sockaddr_dl_short), + .sdl_len = sdl_min_len, .sdl_index = gw_sdl->sdl_index, }; - *gw_sdl = sdl; + memcpy(gw_sdl, &sdl, sdl_min_len); break; } }