linux/samples
Eric Biggers 109f31ac23 ANDROID: fips140: add userspace interface for evaluation testing
The FIPS lab is required to test the service indicators and version
information services of the module, i.e. the
fips140_is_approved_service() and fips140_module_version() functions.
There are several ways we could support this:

- Implement the tests in the module ourselves.  However it's unclear
  that CMVP would allow this, and we would need the full list of tests,
  which could change over time depending on what the lab decides to do.

- Support the lab writing, building, and loading a custom kernel module
  (or a custom kernel image) that tests these functions.

- Provide a userspace interface to these services, restricted to builds
  with CONFIG_CRYPTO_FIPS140_MOD_EVAL_TESTING=y.  This would allow
  writing the tests in userspace, which would be much easier.

Implement the last solution, since it's the easier of the two solutions
that are "guaranteed" to be allowed.  Make the module register a char
device which supports some ioctls, one per function that needs to be
tested.  Also provide some sample userspace code in samples/crypto/.

Note: copy_to_user() would break the integrity check, so take some care
to exclude it.  This is allowed since this is non-production code.

Bug: 188620248
Change-Id: Ic256d9c5bd4d0c57ede88a3e3e76e89554909b38
Signed-off-by: Eric Biggers <ebiggers@google.com>
2021-11-23 18:02:43 +00:00
..
auxdisplay kbuild: introduce hostprogs-always-y and userprogs-always-y 2020-08-10 01:32:59 +09:00
binderfs kbuild: introduce hostprogs-always-y and userprogs-always-y 2020-08-10 01:32:59 +09:00
bpf bpf, samples: Add missing mprog-disable to xdp_redirect_cpu's optstring 2021-09-15 09:50:37 +02:00
configfs samples: configfs: prefer pr_err() over bare printk(KERN_ERR 2020-10-07 15:46:22 +02:00
connector kbuild: introduce hostprogs-always-y and userprogs-always-y 2020-08-10 01:32:59 +09:00
crypto ANDROID: fips140: add userspace interface for evaluation testing 2021-11-23 18:02:43 +00:00
ftrace samples/ftrace: Mark my_tramp[12]? global 2020-11-30 21:42:48 -05:00
hidraw kbuild: introduce hostprogs-always-y and userprogs-always-y 2020-08-10 01:32:59 +09:00
hw_breakpoint samples/hw_breakpoint: drop use of kallsyms_lookup_name() 2020-04-07 10:43:44 -07:00
kdb treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
kfifo kfifo: fix ternary sign extension bugs 2021-05-14 09:50:45 +02:00
kmemleak mm,kmemleak-test.c: move kmemleak-test.c to samples dir 2020-10-13 18:38:27 -07:00
kobject treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
kprobes kernel-clone-v5.9 2020-10-14 14:32:52 -07:00
livepatch livepatch: Handle allocation failure in the sample of shadow variable API 2020-01-17 11:12:06 +01:00
mei kbuild: introduce hostprogs-always-y and userprogs-always-y 2020-08-10 01:32:59 +09:00
nitro_enclaves nitro_enclaves: Add sample for ioctl interface usage 2020-09-22 13:58:41 +02:00
pidfd kbuild: introduce hostprogs-always-y and userprogs-always-y 2020-08-10 01:32:59 +09:00
pktgen samples: pktgen: add missing IPv6 option to pktgen scripts 2021-09-15 09:50:40 +02:00
qmi treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
rpmsg samples/rpmsg: Introduce a module parameter for message count 2019-08-26 22:10:39 -07:00
seccomp kbuild: introduce hostprogs-always-y and userprogs-always-y 2020-08-10 01:32:59 +09:00
timers kbuild: introduce hostprogs-always-y and userprogs-always-y 2020-08-10 01:32:59 +09:00
trace_events tracing: Fix doc mistakes in trace sample 2020-05-07 13:32:57 -04:00
trace_printk samples/trace_printk: Wait for IRQ work to finish 2019-12-21 16:08:22 -05:00
uhid kbuild: introduce hostprogs-always-y and userprogs-always-y 2020-08-10 01:32:59 +09:00
v4l media: rename VFL_TYPE_GRABBER to _VIDEO 2020-02-24 16:52:39 +01:00
vfio-mdev samples: vfio-mdev: fix error handing in mdpy_fb_probe() 2021-06-10 13:39:15 +02:00
vfs kbuild: introduce hostprogs-always-y and userprogs-always-y 2020-08-10 01:32:59 +09:00
watch_queue watch_queue: Drop references to /dev/watch_queue 2021-03-04 11:37:59 +01:00
watchdog kbuild: introduce hostprogs-always-y and userprogs-always-y 2020-08-10 01:32:59 +09:00
Kconfig watch_queue: Drop references to /dev/watch_queue 2021-03-04 11:37:59 +01:00
Makefile mm,kmemleak-test.c: move kmemleak-test.c to samples dir 2020-10-13 18:38:27 -07:00