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authorThomas Egerer <thomas.egerer@secunet.com>2010-09-20 14:11:38 -0400
committerDavid S. Miller <davem@davemloft.net>2010-09-20 14:11:38 -0400
commit8444cf712c5f71845cba9dc30d8f530ff0d5ff83 (patch)
tree3283983551829eb3f985a92d49ec65ac8e487268 /lib/Makefile
parent842c74bffcdb1d305ccd9e61e417cceae86b9963 (diff)
xfrm: Allow different selector family in temporary state
The family parameter xfrm_state_find is used to find a state matching a certain policy. This value is set to the template's family (encap_family) right before xfrm_state_find is called. The family parameter is however also used to construct a temporary state in xfrm_state_find itself which is wrong for inter-family scenarios because it produces a selector for the wrong family. Since this selector is included in the xfrm_user_acquire structure, user space programs misinterpret IPv6 addresses as IPv4 and vice versa. This patch splits up the original init_tempsel function into a part that initializes the selector respectively the props and id of the temporary state, to allow for differing ip address families whithin the state. Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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