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Change ynl-gen-c.py to use NLA_BE16 and NLA_BE32 types to represent
big-endian u16 and u32 ynl types.
Doing this enables those attributes to have range checks applied, as
the validator will then convert to host endianness prior to validation.
The autogenerated kernel/uapi code have been regenerated by running:
./tools/net/ynl/ynl-regen.sh -f
This changes the policy types of the following attributes:
FOU_ATTR_PORT (NLA_U16 -> NLA_BE16)
FOU_ATTR_PEER_PORT (NLA_U16 -> NLA_BE16)
These two are used with nla_get_be16/nla_put_be16().
MPTCP_PM_ADDR_ATTR_ADDR4 (NLA_U32 -> NLA_BE32)
This one is used with nla_get_in_addr/nla_put_in_addr(),
which uses nla_get_be32/nla_put_be32().
IOWs the generated changes are AFAICT aligned with their implementations.
The generated userspace code remains identical, and have been verified
by comparing the output generated by the following command:
make -C tools/net/ynl/generated
Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20241017094704.3222173-1-ast@fiberby.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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To keep things simple we used to include the uAPI header
in the kernel in the #include <linux/$family.h> format.
This works well enough, most of the genl families should
have headers in include/net/ so linux/$family.h ends up
referring to the uAPI header, anyway. And if it doesn't
no big deal, we'll just include more info than we need.
Unless that is there is a naming conflict. Someone recently
created include/linux/psp.h which will be a problem when
supporting the PSP protocol. (I'm talking about
work-in-progress patches, but it's just a proof that assuming
lack of name conflicts was overly optimistic.)
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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I relicensed Netlink spec code to GPL-2.0 OR BSD-3-Clause but
we still put a slightly different license on the uAPI header
than the rest of the code. Use the Linux-syscall-note on all
the specs and all generated code. It's moot for kernel code,
but should not hurt. This way the licenses match everywhere.
Cc: Chuck Lever <chuck.lever@oracle.com>
Fixes: 37d9df224d1e ("ynl: re-license uniformly under GPL-2.0 OR BSD-3-Clause")
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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I was intending to make all the Netlink Spec code BSD-3-Clause
to ease the adoption but it appears that:
- I fumbled the uAPI and used "GPL WITH uAPI note" there
- it gives people pause as they expect GPL in the kernel
As suggested by Chuck re-license under dual. This gives us benefit
of full BSD freedom while fulfilling the broad "kernel is under GPL"
expectations.
Link: https://lore.kernel.org/all/20230304120108.05dd44c5@kernel.org/
Link: https://lore.kernel.org/r/20230306200457.3903854-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Generate and plug in the spec-based tables.
A little bit of renaming is needed in the FOU code.
Acked-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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