xfrm: Return detailed errors from xfrmi_newlink

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Currently all failure modes of xfrm interface creation return EEXIST.
This change improves the granularity of errnos provided by also
returning ENODEV or EINVAL if failures happen in looking up the
underlying interface, or a required parameter is not provided.

This change has been tested against the Android Kernel Networking Tests,
with additional xfrmi_newlink tests here:

https://android-review.googlesource.com/c/kernel/tests/+/715755

Signed-off-by: Benedict Wong <benedictwong@google.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

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Benedict Wong 2018-07-25 13:45:29 -07:00 • committed by Steffen Klassert

parent 934ffce134

commit 44e2b838c2

1 changed files with 20 additions and 12 deletions

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net/xfrm/xfrm_interface.c

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