Brian Haley d40a4de0be IPv6: fix IPV6_RECVERR handling of locally-generated errors ... I noticed when I added support for IPV6_DONTFRAG that if you set IPV6_RECVERR and tried to send a UDP packet larger than 64K to an IPv6 destination, you'd correctly get an EMSGSIZE, but reading from MSG_ERRQUEUE returned the incorrect address in the cmsg: struct msghdr: msg_name 0x7fff8f3c96d0 msg_namelen 28 struct sockaddr_in6: sin6_family 10 sin6_port 7639 sin6_flowinfo 0 sin6_addr ::ffff:38.32.0.0 sin6_scope_id 0 ((null)) It should have returned this in my case: struct msghdr: msg_name 0x7fffd866b510 msg_namelen 28 struct sockaddr_in6: sin6_family 10 sin6_port 7639 sin6_flowinfo 0 sin6_addr 2620:0:a09:e000:21f:29ff:fe57:f88b sin6_scope_id 0 ((null)) The problem is that ipv6_recv_error() assumes that if the error wasn't generated by ICMPv6, it's an IPv4 address sitting there, and proceeds to create a v4-mapped address from it. Change ipv6_icmp_error() and ipv6_local_error() to set skb->protocol to htons(ETH_P_IPV6) so that ipv6_recv_error() knows the address sitting right after the extended error is IPv6, else it will incorrectly map the first octet into an IPv4-mapped IPv6 address in the cmsg structure returned in a recvmsg() call to obtain the error. Signed-off-by: Brian Haley <brian.haley@hp.com> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Signed-off-by: David S. Miller <davem@davemloft.net>		2010-05-05 21:32:40 -07:00
..
netfilter
addrconf_core.c
addrconf.c
addrlabel.c
af_inet6.c	ipv6: Fix default multicast hops setting.	2010-05-03 23:42:27 -07:00
ah6.c
anycast.c
datagram.c	IPv6: fix IPV6_RECVERR handling of locally-generated errors	2010-05-05 21:32:40 -07:00
esp6.c
exthdrs_core.c
exthdrs.c
fib6_rules.c
icmp.c
inet6_connection_sock.c	Revert "tcp: bind() fix when many ports are bound"	2010-04-28 11:25:59 -07:00
inet6_hashtables.c
ip6_fib.c
ip6_flowlabel.c
ip6_input.c
ip6_output.c	ipv6: allow to send packet after receiving ICMPv6 Too Big message with MTU field less than IPV6_MIN_MTU	2010-04-21 22:48:26 -07:00
ip6_tunnel.c
ip6mr.c
ipcomp6.c
ipv6_sockglue.c
Kconfig
Makefile
mcast.c
mip6.c
ndisc.c
netfilter.c
proc.c
protocol.c
raw.c
reassembly.c
route.c	net: ipv6 bind to device issue	2010-04-21 22:59:24 -07:00
sit.c
syncookies.c
sysctl_net_ipv6.c
tcp_ipv6.c	ipv6: Fix tcp_v6_send_response transport header setting.	2010-04-21 00:47:15 -07:00
tunnel6.c
udp_impl.h
udp.c
udplite.c
xfrm6_input.c
xfrm6_mode_beet.c
xfrm6_mode_ro.c
xfrm6_mode_transport.c
xfrm6_mode_tunnel.c
xfrm6_output.c
xfrm6_policy.c	xfrm6: ensure to use the same dev when building a bundle	2010-04-21 16:25:30 -07:00
xfrm6_state.c
xfrm6_tunnel.c