linux-stable.git/net/sched, branch linux-4.6.y

net_sched: fix mirrored packets checksum

2016-07-27T15:42:13+00:00

[ Upstream commit 82a31b9231f02d9c1b7b290a46999d517b0d312a ]

Similar to commit 9b368814b336 ("net: fix bridge multicast packet checksum validation")
we need to fixup the checksum for CHECKSUM_COMPLETE when
pushing skb on RX path. Otherwise we get similar splats.

Cc: Jamal Hadi Salim 
Cc: Tom Herbert 
Signed-off-by: Cong Wang 
Acked-by: Jamal Hadi Salim 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

netem: fix a use after free

2016-07-11T16:30:00+00:00

[ Upstream commit 21de12ee5568fd1aec47890c72967abf791ac80a ]

If the packet was dropped by lower qdisc, then we must not
access it later.

Save qdisc_pkt_len(skb) in a temp variable.

Fixes: 2ccccf5fb43f ("net_sched: update hierarchical backlog too")
Signed-off-by: Eric Dumazet 
Cc: WANG Cong 
Cc: Jamal Hadi Salim 
Cc: Stephen Hemminger 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

act_ipt: fix a bind refcnt leak

2016-07-11T16:30:00+00:00

[ Upstream commit d15eccea69b96a5116169688dcc9baf6d1ce2751 ]

And avoid calling tcf_hash_check() twice.

Fixes: a57f19d30b2d ("net sched: ipt action fix late binding")
Cc: Jamal Hadi Salim 
Signed-off-by: Cong Wang 
Acked-by: Jamal Hadi Salim 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

net_sched: fix pfifo_head_drop behavior vs backlog

2016-07-11T16:30:00+00:00

[ Upstream commit 6c0d54f1897d229748d4f41ef919078db6db2123 ]

When the qdisc is full, we drop a packet at the head of the queue,
queue the current skb and return NET_XMIT_CN

Now we track backlog on upper qdiscs, we need to call
qdisc_tree_reduce_backlog(), even if the qlen did not change.

Fixes: 2ccccf5fb43f ("net_sched: update hierarchical backlog too")
Signed-off-by: Eric Dumazet 
Cc: WANG Cong 
Cc: Jamal Hadi Salim 
Acked-by: Cong Wang 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

net sched: ife action fix late binding

2016-05-11T03:50:15+00:00

The process below was broken and is fixed with this patch.

//add an ife action and give it an instance id of 1
sudo tc actions add action ife encode \
type 0xDEAD allow mark dst 02:15:15:15:15:15 index 1

//create a filter which binds to ife action id 1
sudo tc filter add dev $DEV parent ffff: protocol ip prio 1 u32\
match ip dst 17.0.0.1/32 flowid 1:11 action ife index 1

Message before fix was:
RTNETLINK answers: Invalid argument
We have an error talking to the kernel

Signed-off-by: Jamal Hadi Salim 
Reviewed-by: Cong Wang 
Signed-off-by: David S. Miller

net sched: skbedit action fix late binding

2016-05-11T03:50:15+00:00

The process below was broken and is fixed with this patch.

//add a skbedit action and give it an instance id of 1
sudo tc actions add action skbedit mark 10 index 1
//create a filter which binds to skbedit action id 1
sudo tc filter add dev $DEV parent ffff: protocol ip prio 1 u32\
match ip dst 17.0.0.1/32 flowid 1:10 action skbedit index 1

Message before fix was:
RTNETLINK answers: Invalid argument
We have an error talking to the kernel

Signed-off-by: Jamal Hadi Salim 
Reviewed-by: Cong Wang 
Signed-off-by: David S. Miller

net sched: simple action fix late binding

2016-05-11T03:50:15+00:00

The process below was broken and is fixed with this patch.

//add a simple action and give it an instance id of 1
sudo tc actions add action simple sdata "foobar" index 1
//create a filter which binds to simple action id 1
sudo tc filter add dev $DEV parent ffff: protocol ip prio 1 u32\
match ip dst 17.0.0.1/32 flowid 1:10 action simple index 1

Message before fix was:
RTNETLINK answers: Invalid argument
We have an error talking to the kernel

Signed-off-by: Jamal Hadi Salim 
Reviewed-by: Cong Wang 
Signed-off-by: David S. Miller

net sched: mirred action fix late binding

2016-05-11T03:50:15+00:00

The process below was broken and is fixed with this patch.

//add an mirred action and give it an instance id of 1
sudo tc actions add action mirred egress mirror dev $MDEV  index 1
//create a filter which binds to mirred action id 1
sudo tc filter add dev $DEV parent ffff: protocol ip prio 1 u32\
match ip dst 17.0.0.1/32 flowid 1:10 action mirred index 1

Message before bug fix was:
RTNETLINK answers: Invalid argument
We have an error talking to the kernel

Signed-off-by: Jamal Hadi Salim 
Reviewed-by: Cong Wang 
Signed-off-by: David S. Miller

net sched: ipt action fix late binding

2016-05-11T03:50:15+00:00

This was broken and is fixed with this patch.

//add an ipt action and give it an instance id of 1
sudo tc actions add action ipt -j mark --set-mark 2 index 1
//create a filter which binds to ipt action id 1
sudo tc filter add dev $DEV parent ffff: protocol ip prio 1 u32\
match ip dst 17.0.0.1/32 flowid 1:10 action ipt index 1

Message before bug fix was:
RTNETLINK answers: Invalid argument
We have an error talking to the kernel

Signed-off-by: Jamal Hadi Salim 
Reviewed-by: Cong Wang 
Signed-off-by: David S. Miller

net sched: vlan action fix late binding

2016-05-11T03:50:15+00:00

Late vlan action binding was broken and is fixed with this patch.

//add a vlan action to pop and give it an instance id of 1
sudo tc actions add action vlan pop index 1
//create filter which binds to vlan action id 1
sudo tc filter add dev $DEV parent ffff: protocol ip prio 1 u32 \
match ip dst 17.0.0.1/32 flowid 1:1 action vlan index 1

current message(before bug fix) was:
RTNETLINK answers: Invalid argument
We have an error talking to the kernel

Signed-off-by: Jamal Hadi Salim 
Reviewed-by: Cong Wang 
Signed-off-by: David S. Miller