To avoid changing the visibiliy of data types when including
hook definition headers remove header file inclusions from
the hook definition header files.
Instead, the hook definition headers should just have forward
declarations that don't require full definition.
To provide full definitions of the types for the KMI, the
headers that define the types should be included by the
source file that instantiates the hooks - normally
vendor_hooks.c.
Since the KMI is frozen, some of the inclusions are still
required to preserve the CRC associated with symbols. Keep
these inclusions under #ifdef __GENKSYMS__.
Bug: 233047575
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: Ibc1173eb4b07fcec21c7abd8e0ab1950b3fb5b34
This change is intended to reduce the chance of a missed ABI break
involving vendor hooks.
The following type is now fully defined in ABI XML.
* `struct timekeeper`
symbol '__traceiter_android_rvh_account_irq' changed
CRC changed from 0x18e0dccf to 0x4e82c102
symbol '__traceiter_android_rvh_after_dequeue_task' changed
CRC changed from 0x7efc419b to 0x1c0066e1
symbol '__traceiter_android_rvh_after_enqueue_task' changed
CRC changed from 0xd6f0f603 to 0xf7eaafb8
... 75 omitted; 78 symbols have only CRC changes
Bug: 233047575
Change-Id: I8c04eede1b9d9e788abce95cb31dbd19916774ef
Signed-off-by: Giuliano Procida <gprocida@google.com>
When vendor hooks are added to a file that previously didn't have any
vendor hooks, we end up indirectly including linux/tracepoint.h. This
causes some data types that used to be opaque (forward declared) to the
code to become visible to the code.
Modversions correctly catches this change in visibility, but we don't
really care about the data types made visible when linux/tracepoint.h is
included. So, hide this from modversions in the central vendor_hooks.h file
instead of having to fix this on a case by case basis.
This change itself will cause a one time CRC breakage/churn because it's
fixing the existing vendor hook headers, but should reduce unnecessary CRC
churns in the future.
To avoid future pointless CRC churn, vendor hook header files that include
vendor_hooks.h should not include linux/tracepoint.h directly.
Bug: 227513263
Bug: 226140073
Signed-off-by: Saravana Kannan <saravanak@google.com>
Change-Id: Ia88e6af11dd94fe475c464eb30a6e5e1e24c938b
Add vendor hooks that will allow the FIPS140 kernel module to override
the implementations of the AES library routines. The FIPS 140 versions
are identical to the normal ones, but their code and rodata will have been
integrity checked at module load time.
Bug: 153614920
Bug: 188620248
Change-Id: I5711fc42eced903565fd3c8d41ca7cdd82641148
Signed-off-by: Ard Biesheuvel <ardb@google.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Add a vendor hook that will allow the FIPS140 kernel module to override
the implementation of the sha256() library routine. The FIPS 140 version
is identical to the normal one, but its code and rodata will have been
integrity checked at module load time.
Bug: 153614920
Bug: 188620248
Change-Id: I8ccc4f0cc8206af39fa922134b438dacac2a614a
Signed-off-by: Ard Biesheuvel <ardb@google.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
