AuxXxilium/linux_dsm_epyc7002
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e895cdce68
linux_dsm_epyc7002/net
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Eric Dumazet e895cdce68 ipv4: accept u8 in IP_TOS ancillary data 
In commit f02db315b8 ("ipv4: IP_TOS and IP_TTL can be specified as
ancillary data") Francesco added IP_TOS values specified as integer.

However, kernel sends to userspace (at recvmsg() time) an IP_TOS value
in a single byte, when IP_RECVTOS is set on the socket.

It can be very useful to reflect all ancillary options as given by the
kernel in a subsequent sendmsg(), instead of aborting the sendmsg() with
EINVAL after Francesco patch.

So this patch extends IP_TOS ancillary to accept an u8, so that an UDP
server can simply reuse same ancillary block without having to mangle
it.

Jesper can then augment
https://github.com/netoptimizer/network-testing/blob/master/src/udp_example02.c
to add TOS reflection ;)

Fixes: f02db315b8 ("ipv4: IP_TOS and IP_TTL can be specified as ancillary data")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Francesco Fusco <ffusco@redhat.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-08 17:45:57 -07:00
..
6lowpan 6lowpan: ndisc: set invalid unicast short addr to unspec 2016-07-08 13:23:12 +02:00
9p 9p/trans_virtio: use kvfree() for iov_iter_get_pages_alloc() 2016-08-09 13:42:36 +03:00
802
8021q net: remove type_check from dev_get_nest_level() 2016-08-13 15:15:54 -07:00
appletalk appletalk: fix erroneous return value 2016-02-18 14:59:34 -05:00
atm net: atm: remove redundant null pointer check on dev->name 2016-08-18 21:03:48 -07:00
ax25 AX.25: Close socket connection on session completion 2016-06-18 20:55:34 -07:00
batman-adv batman: make netlink attributes const 2016-09-01 14:09:00 -07:00
bluetooth Bluetooth: Fix hci_sock_recvmsg when MSG_TRUNC is not set 2016-08-25 20:58:47 +02:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2016-09-06 12:45:26 -07:00
caif caif: Remove unneeded header file 2016-06-28 05:26:14 -04:00
can can: only call can_stat_update with procfs 2016-06-23 11:23:49 +02:00
ceph libceph: using kfree_rcu() to simplify the code 2016-08-08 21:41:42 +02:00
core tcp: use an RB tree for ooo receive queue 2016-09-08 17:25:58 -07:00
dcb
dccp Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2016-07-29 17:38:46 -07:00
decnet net: fix decnet rtnexthop parsing 2016-07-05 14:08:47 -07:00
dns_resolver KEYS: Add a facility to restrict new links into a keyring 2016-04-11 22:37:37 +01:00
dsa net: dsa: add MDB support 2016-08-31 14:15:42 -07:00
ethernet eth: Pull header from first fragment via eth_get_headlen 2016-02-24 13:58:05 -05:00
hsr net/hsr: Use setup_timer and mod_timer. 2016-05-16 14:00:43 -04:00
ieee802154 ieee802154: 6lowpan: fix intra pan id check 2016-07-08 13:23:12 +02:00
ipv4 ipv4: accept u8 in IP_TOS ancillary data 2016-09-08 17:45:57 -07:00
ipv6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2016-09-06 12:45:26 -07:00
ipx
irda net/irda: remove pointless assignment/check 2016-08-19 18:07:24 -07:00
iucv Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2016-07-29 17:38:46 -07:00
kcm kcm: Remove TCP specific references from kcm and strparser 2016-08-28 23:32:41 -04:00
key
l2tp l2tp: make nla_policy const 2016-09-01 14:09:01 -07:00
l3mdev net: vrf: Implement get_saddr for IPv6 2016-06-17 21:25:29 -07:00
lapb net/lapb: tuse %*ph to dump buffers 2016-05-29 22:33:25 -07:00
llc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-05-09 15:59:24 -04:00
mac80211 mac80211: call get_expected_throughput only after adding station 2016-08-11 20:00:37 +02:00
mac802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-03-19 10:05:34 -07:00
mpls mpls: get rid of trivial returns 2016-09-01 10:13:15 -07:00
ncsi net/ncsi: avoid maybe-uninitialized warning 2016-07-25 10:32:59 -07:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2016-09-06 12:45:26 -07:00
netlabel netlabel: Implement CALIPSO config functions for SMACK. 2016-06-27 15:06:18 -04:00
netlink netlink: don't forget to release a rhashtable_iter structure 2016-09-07 17:29:38 -07:00
netrom
nfc NFC: digital: Fix RTOX supervisor PDU handling 2016-07-11 02:02:03 +02:00
openvswitch openvswitch: 802.1AD Flow handling, actions, vlan parsing, netlink attributes 2016-09-08 17:10:28 -07:00
packet Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-07-24 00:53:32 -04:00
phonet
qrtr Merge tag 'qcom-soc-for-4.7-2' into net-next 2016-05-17 14:11:19 -04:00
rds RDS: add __printf format attribute to error reporting functions 2016-08-08 16:16:21 -07:00
rfkill rfkill: Use switch to demux userspace operations 2016-04-05 10:48:53 +02:00
rose rose: limit sk_filter trim to payload 2016-07-13 11:53:40 -07:00
rxrpc rxrpc: Add tracepoint for working out where aborts happen 2016-09-07 16:34:40 +01:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-08-30 00:54:02 -04:00
sctp net: inet: diag: expose the socket mark to privileged processes. 2016-09-08 16:13:09 -07:00
strparser kcm: Remove TCP specific references from kcm and strparser 2016-08-28 23:32:41 -04:00
sunrpc NFS client bugfixes for Linux 4.8 2016-08-12 12:32:24 -07:00
switchdev rtnetlink: fdb dump: optimize by saving last interface markers 2016-09-01 16:56:15 -07:00
tipc tipc: send broadcast nack directly upon sequence gap detection 2016-09-02 17:10:25 -07:00
unix af_unix: charge buffers to kmemcg 2016-07-26 16:19:19 -07:00
vmw_vsock vhost/vsock: drop space available check for TX vq 2016-08-15 05:05:21 +03:00
wimax
wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-08-18 01:17:32 -04:00
x25 net: fix a kernel infoleak in x25 module 2016-05-09 22:45:33 -04:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2016-09-08 13:09:41 -07:00
compat.c packet: compat support for sock_fprog 2016-06-09 23:41:03 -07:00
Kconfig strparser: Stream parser for messages 2016-08-17 19:36:23 -04:00
Makefile strparser: Stream parser for messages 2016-08-17 19:36:23 -04:00
socket.c fs: poll/select/recvmmsg: use timespec64 for timeout events 2016-05-19 19:12:14 -07:00
sysctl_net.c net: make net namespace sysctls belong to container's owner 2016-08-14 21:08:58 -07:00