Date: Wed, 1 Nov 2017 13:54:16 +0000 (UTC) From: Kristof Provost <kp@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r325282 - stable/11/sys/netinet6 Message-ID: <201711011354.vA1DsGat037263@repo.freebsd.org>
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Author: kp Date: Wed Nov 1 13:54:16 2017 New Revision: 325282 URL: https://svnweb.freebsd.org/changeset/base/325282 Log: MFC r324996: Evaluate packet size after the firewall had its chance in the ip6 fast path Defer the packet size check until after the firewall has had a look at it. This means that the firewall now has the opportunity to (re-)fragment an oversized packet. This mirrors what the slow path does. Modified: stable/11/sys/netinet6/ip6_fastfwd.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/netinet6/ip6_fastfwd.c ============================================================================== --- stable/11/sys/netinet6/ip6_fastfwd.c Wed Nov 1 13:50:35 2017 (r325281) +++ stable/11/sys/netinet6/ip6_fastfwd.c Wed Nov 1 13:54:16 2017 (r325282) @@ -194,7 +194,17 @@ passin: in6_ifstat_inc(rcvif, ifs6_in_noroute); goto dropin; } + /* + * Outgoing packet firewall processing. + */ + if (!PFIL_HOOKED(&V_inet6_pfil_hook)) + goto passout; + if (pfil_run_hooks(&V_inet6_pfil_hook, &m, nh.nh_ifp, PFIL_OUT, + NULL) != 0 || m == NULL) + goto dropout; + + /* * We used slow path processing for packets with scoped addresses. * So, scope checks aren't needed here. */ @@ -205,14 +215,6 @@ passin: goto dropout; } - /* - * Outgoing packet firewall processing. - */ - if (!PFIL_HOOKED(&V_inet6_pfil_hook)) - goto passout; - if (pfil_run_hooks(&V_inet6_pfil_hook, &m, nh.nh_ifp, PFIL_OUT, - NULL) != 0 || m == NULL) - goto dropout; /* * If packet filter sets the M_FASTFWD_OURS flag, this means * that new destination or next hop is our local address.
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