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authorMahesh Bandewar <maheshb@google.com>2016-09-16 12:59:19 -0700
committerDavid S. Miller <davem@davemloft.net>2016-09-19 01:25:22 -0400
commit4fbae7d83c98c30efcf0a2a2ac55fbb75ef5a1a5 (patch)
tree3ea819d38ad4fbbae8d4db166f58451c2a78ee20 /drivers/ata/sata_promise.c
parente8bffe0cf964f0330595bb376b74921cccdaac88 (diff)
ipvlan: Introduce l3s mode
In a typical IPvlan L3 setup where master is in default-ns and each slave is into different (slave) ns. In this setup egress packet processing for traffic originating from slave-ns will hit all NF_HOOKs in slave-ns as well as default-ns. However same is not true for ingress processing. All these NF_HOOKs are hit only in the slave-ns skipping them in the default-ns. IPvlan in L3 mode is restrictive and if admins want to deploy iptables rules in default-ns, this asymmetric data path makes it impossible to do so. This patch makes use of the l3_rcv() (added as part of l3mdev enhancements) to perform input route lookup on RX packets without changing the skb->dev and then uses nf_hook at NF_INET_LOCAL_IN to change the skb->dev just before handing over skb to L4. Signed-off-by: Mahesh Bandewar <maheshb@google.com> CC: David Ahern <dsa@cumulusnetworks.com> Reviewed-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/ata/sata_promise.c')
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