[Buildroot] [PATCH] linux/linux.hash: remove hash for COPYING

[Buildroot] [PATCH] linux/linux.hash: remove hash for COPYING

[Markus Mayer]

The hash for "COPYING" changed between v4.16 and v4.17. Since kernels
before and after the change are supported, storing the hash for this
file will cause an error during "make legal-info" when a kernel with the
respective other hash is being used.

Signed-off-by: Markus Mayer <mmayer@broadcom.com>
---

One way to reproduce the problem:

1) Download and extract
   https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/linux-4.9.212.tar.xz
2) Configure buildroot as usual
3) Point LINUX_OVERRIDE_SRCDIR to the 4.9.212 directory created above
4) make && make legal-info

[...]
>>> linux-tools  Collecting legal info
>>> linux custom Collecting legal info
ERROR: COPYING has wrong sha256 hash:
ERROR: expected: ee5808b032a67f587d3541099d46de34f5bec8cd5976114ba07f1299ee6001ff
ERROR: got     : af8067302947c01fd9eee72befa54c7e3ef8a48fecde7fd71277f2290b2bf0f7
ERROR: Incomplete download, or man-in-the-middle (MITM) attack
linux/linux.mk:606: recipe for target 'linux-legal-info' failed

 linux/linux.hash | 1 -
 1 file changed, 1 deletion(-)

diff --git a/linux/linux.hash b/linux/linux.hash
index 940a90ed9dea..289171987aa1 100644
--- a/linux/linux.hash
+++ b/linux/linux.hash
@@ -8,4 +8,3 @@ sha256 be26156abdb38ac0576a34a235ef456bb8ca67fbbe56fc6649b8d069159f8bc4  linux-4
 # Locally computed
 sha256 6d60ce76bce2e1938f64027d12b1988c95245751feb635adfc551a021d5b3f26  linux-cip-4.19.88-cip16.tar.gz
 sha256 74ec782e11344e5c5db8e48899b464e296ef37acfb43ce7dfb01c09ea8d3e959  linux-cip-4.19.82-cip14-rt5.tar.gz
-sha256 ee5808b032a67f587d3541099d46de34f5bec8cd5976114ba07f1299ee6001ff  COPYING
-- 
2.17.1

[Buildroot] [PATCH] linux/linux.hash: remove hash for COPYING

[Yann E. MORIN]

Markus, All,

On 2020-02-04 15:13 -0800, Markus Mayer spake thusly:
> The hash for "COPYING" changed between v4.16 and v4.17. Since kernels
> before and after the change are supported, storing the hash for this
> file will cause an error during "make legal-info" when a kernel with the
> respective other hash is being used.
> 
> Signed-off-by: Markus Mayer <mmayer@broadcom.com>

After discussing this at the devdays today, I've reworked it with
another solution which allows us to notice those changes in the future:
the license files are only added for the latest known version.

I've also applied the same semantic to other packags that would exhibit
the same problem.

http://lists.busybox.net/pipermail/buildroot/2020-February/thread.html#273348

Thanks for the report! :-)

Regards,
Yann E. MORIN.

> ---
> 
> One way to reproduce the problem:
> 
> 1) Download and extract
>    https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/linux-4.9.212.tar.xz
> 2) Configure buildroot as usual
> 3) Point LINUX_OVERRIDE_SRCDIR to the 4.9.212 directory created above
> 4) make && make legal-info
> 
> [...]
> >>> linux-tools  Collecting legal info
> >>> linux custom Collecting legal info
> ERROR: COPYING has wrong sha256 hash:
> ERROR: expected: ee5808b032a67f587d3541099d46de34f5bec8cd5976114ba07f1299ee6001ff
> ERROR: got     : af8067302947c01fd9eee72befa54c7e3ef8a48fecde7fd71277f2290b2bf0f7
> ERROR: Incomplete download, or man-in-the-middle (MITM) attack
> linux/linux.mk:606: recipe for target 'linux-legal-info' failed
> 
>  linux/linux.hash | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/linux/linux.hash b/linux/linux.hash
> index 940a90ed9dea..289171987aa1 100644
> --- a/linux/linux.hash
> +++ b/linux/linux.hash
> @@ -8,4 +8,3 @@ sha256 be26156abdb38ac0576a34a235ef456bb8ca67fbbe56fc6649b8d069159f8bc4  linux-4
>  # Locally computed
>  sha256 6d60ce76bce2e1938f64027d12b1988c95245751feb635adfc551a021d5b3f26  linux-cip-4.19.88-cip16.tar.gz
>  sha256 74ec782e11344e5c5db8e48899b464e296ef37acfb43ce7dfb01c09ea8d3e959  linux-cip-4.19.82-cip14-rt5.tar.gz
> -sha256 ee5808b032a67f587d3541099d46de34f5bec8cd5976114ba07f1299ee6001ff  COPYING
> -- 
> 2.17.1
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

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[Buildroot] [PATCH] linux/linux.hash: remove hash for COPYING

[Markus Mayer]

On Wed, 5 Feb 2020 at 07:10, Yann E. MORIN <yann.morin.1998@free.fr> wrote:

Hi Yann,

> Thanks for the report! :-)

Thanks for the quick turnaround. I appreciate it. :-)

Regards,
-Markus

> Regards,
> Yann E. MORIN.