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authorDuncan Eastoe <deastoe@vyatta.att-mail.com>2018-11-07 16:36:06 +0100
committerDavid S. Miller <davem@davemloft.net>2018-11-08 01:12:39 +0100
commit7055420fb6a1cb754a64be99ddcabd45bd902d99 (patch)
tree469b838c4b00ccfc04f3583805eb5ebbf52ab14f /drivers/net/vrf.c
parentnet: provide a sysctl raw_l3mdev_accept for raw socket lookup with VRFs (diff)
downloadlinux-7055420fb6a1cb754a64be99ddcabd45bd902d99.tar.xz
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net: fix raw socket lookup device bind matching with VRFs
When there exist a pair of raw sockets one unbound and one bound to a VRF but equal in all other respects, when a packet is received in the VRF context, __raw_v4_lookup() matches on both sockets. This results in the packet being delivered over both sockets, instead of only the raw socket bound to the VRF. The bound device checks in __raw_v4_lookup() are replaced with a call to raw_sk_bound_dev_eq() which correctly handles whether the packet should be delivered over the unbound socket in such cases. In __raw_v6_lookup() the match on the device binding of the socket is similarly updated to use raw_sk_bound_dev_eq() which matches the handling in __raw_v4_lookup(). Importantly raw_sk_bound_dev_eq() takes the raw_l3mdev_accept sysctl into account. Signed-off-by: Duncan Eastoe <deastoe@vyatta.att-mail.com> Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com> Reviewed-by: David Ahern <dsahern@gmail.com> Tested-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/vrf.c')
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