Date: Tue, 19 Apr 2011 08:29:28 +0000 (UTC) From: "Bjoern A. Zeeb" <bz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r220825 - stable/8/sys/netinet6 Message-ID: <201104190829.p3J8TSDG000156@svn.freebsd.org>
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Author: bz Date: Tue Apr 19 08:29:28 2011 New Revision: 220825 URL: http://svn.freebsd.org/changeset/base/220825 Log: MFC r220463: Remove a check in udp6_send() that prevented v4-mapped v6 addresses from working. We store v4 and v6 addresses as a union but for v4-mapped addresses only store the 32bits w/o the ::ffff: word. That failed the check as for example 127.0.0.1 would be ::7f00:1 rather than ::ffff:7f00:1 and the IN6_IS_ADDR_V4MAPPED() never worked here. Given we can hardly get here with an unbound local address or invalid inp_vflags remove the check. Reported by: tuexen Reviewed by: tuexen Modified: stable/8/sys/netinet6/udp6_usrreq.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) Modified: stable/8/sys/netinet6/udp6_usrreq.c ============================================================================== --- stable/8/sys/netinet6/udp6_usrreq.c Tue Apr 19 08:17:36 2011 (r220824) +++ stable/8/sys/netinet6/udp6_usrreq.c Tue Apr 19 08:29:28 2011 (r220825) @@ -1045,18 +1045,6 @@ udp6_send(struct socket *so, int flags, if (hasv4addr) { struct pr_usrreqs *pru; - if (!IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr) && - !IN6_IS_ADDR_V4MAPPED(&inp->in6p_laddr)) { - /* - * When remote addr is IPv4-mapped address, - * local addr should not be an IPv6 address; - * since you cannot determine how to map IPv6 - * source address to IPv4. - */ - error = EINVAL; - goto out; - } - /* * XXXRW: We release UDP-layer locks before calling * udp_send() in order to avoid recursion. However, @@ -1080,7 +1068,6 @@ udp6_send(struct socket *so, int flags, mac_inpcb_create_mbuf(inp, m); #endif error = udp6_output(inp, m, addr, control, td); -out: INP_WUNLOCK(inp); INP_INFO_WUNLOCK(&V_udbinfo); return (error);
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