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4b261c75a9
linux/net
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Hannes Frederic Sowa 4b261c75a9 ipv6: make IPV6_RECVPKTINFO work for ipv4 datagrams 
We currently don't report IPV6_RECVPKTINFO in cmsg access ancillary data
for IPv4 datagrams on IPv6 sockets.

This patch splits the ip6_datagram_recv_ctl into two functions, one
which handles both protocol families, AF_INET and AF_INET6, while the
ip6_datagram_recv_specific_ctl only handles IPv6 cmsg data.

ip6_datagram_recv_*_ctl never reported back any errors, so we can make
them return void. Also provide a helper for protocols which don't offer dual
personality to further use ip6_datagram_recv_ctl, which is exported to
modules.

I needed to shuffle the code for ping around a bit to make it easier to
implement dual personality for ping ipv6 sockets in future.

Reported-by: Gert Doering <gert@space.net>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19 19:53:18 -08:00
..
9p Nothing really exciting: some groundwork for changing virtio endian, and 2013-11-15 13:28:47 +09:00
802 neigh: use NEIGH_VAR_INIT in ndo_neigh_setup functions. 2014-01-16 11:31:58 -08:00
8021q vlan: Fix header ops passthru when doing TX VLAN offload. 2013-12-31 16:23:35 -05:00
appletalk net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
atm net: rework recvmsg handler msg_name and msg_namelen logic 2013-11-20 21:52:30 -05:00
ax25 net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-18 00:55:41 -08:00
bluetooth net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
bridge bridge: move br_net_exit() to br.c 2014-01-13 23:42:39 -08:00
caif caif: __dev_get_by_index instead of dev_get_by_index to find interface 2014-01-14 18:50:47 -08:00
can net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
ceph net: 8021q/bluetooth/bridge/can/ceph: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
core net: introduce SO_BPF_EXTENSIONS 2014-01-18 19:08:58 -08:00
dcb dcb: use __dev_get_by_name instead of dev_get_by_name to find interface 2014-01-14 18:50:46 -08:00
dccp ipv4: introduce hardened ip_no_pmtu_disc mode 2014-01-13 11:22:55 -08:00
decnet net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
dns_resolver net/*: Fix FSF address in file headers 2013-12-06 12:37:57 -05:00
dsa
ethernet net: eth_type_trans() should use skb_header_pointer() 2014-01-16 15:30:31 -08:00
hsr net/hsr: using kfree_rcu() to simplify the code 2013-12-17 16:32:30 -05:00
ieee802154 net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
ipv4 ipv6: make IPV6_RECVPKTINFO work for ipv4 datagrams 2014-01-19 19:53:18 -08:00
ipv6 ipv6: make IPV6_RECVPKTINFO work for ipv4 datagrams 2014-01-19 19:53:18 -08:00
ipx net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
irda net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
iucv net: rework recvmsg handler msg_name and msg_namelen logic 2013-11-20 21:52:30 -05:00
key xfrm: export verify_userspi_info for pkfey and netlink interface 2013-12-16 12:54:02 +01:00
l2tp net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
lapb
llc net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
mac80211 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2014-01-17 14:43:17 -05:00
mac802154 mac802154: fix following checkpath.pl warning Prefer pr_warn(... to pr_warning(... 2013-12-22 18:53:08 -05:00
mpls ipip: add GSO/TSO support 2013-10-19 19:36:19 -04:00
netfilter Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nftables 2014-01-16 11:44:54 -08:00
netlabel netlabel: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
netlink net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
netrom net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
nfc net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
openvswitch net: replace macros net_random and net_srandom with direct calls to prandom 2014-01-14 15:15:25 -08:00
packet net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
phonet net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
rds net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
rfkill rfkill: Fix FSF address in file headers 2013-12-11 10:56:21 -05:00
rose net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
rxrpc net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
sched sch_netem: replace magic numbers with enumerate 2014-01-19 17:17:34 -08:00
sctp sctp: remove the unnecessary assignment 2014-01-16 17:31:49 -08:00
sunrpc net: replace macros net_random and net_srandom with direct calls to prandom 2014-01-14 15:15:25 -08:00
tipc net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
unix net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
vmw_vsock net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
wimax wimax: remove dead code 2013-11-21 13:09:42 -05:00
wireless Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2014-01-17 14:43:17 -05:00
x25 net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
xfrm net: replace macros net_random and net_srandom with direct calls to prandom 2014-01-14 15:15:25 -08:00
compat.c net: clamp ->msg_namelen instead of returning an error 2013-11-29 16:12:52 -05:00
Kconfig net: netprio: rename config to be more consistent with cgroup configs 2014-01-03 23:41:42 +01:00
Makefile net: move 6lowpan compression code to separate module 2014-01-15 15:36:38 -08:00
nonet.c
socket.c net: handle error more gracefully in socketpair() 2013-12-10 22:24:13 -05:00
sysctl_net.c net: Update the sysctl permissions handler to test effective uid/gid 2013-10-07 15:57:56 -04:00