Hi Stephan,
Thanks. The patch that I applied have different line numbers than yours.
In any case, patch worked to get rid of Œdrbg¹ related error.
Now, fips mode is failing on self-test:
/boot/vmlinuz-4.7.0-1.tos2_5: OK
[ 1.296714] alg: skcipher: setkey failed on test 1 for xts(aes-asm):
flags=100000
[ 1.297665] Kernel panic - not syncing: xts(aes): xts(aes) alg self
test failed in fips mode!
[ 1.297665]
Thanks
-Tapas
On 8/9/16, 2:02 PM, "Stephan Mueller" <smueller@xxxxxxxxxx> wrote:
>Am Dienstag, 9. August 2016, 19:52:46 CEST schrieb Stephan Mueller:
>
>Hi Tapas,
>
>I think I found the issue. Can you please test the attached patch?
>
>---8<---
>
>When calling the DRBG health test in FIPS mode, the Jitter RNG is not
>yet present in the kernel crypto API which will cause the instantiation
>to fail and thus the health test to fail.
>
>As the health tests cover the enforcement of various thresholds, invoke
>the functions that are supposed to enforce the thresholds directly.
>
>This patch also saves precious seed.
>
>Reported-by: Tapas Sarangi <TSarangi@xxxxxxxxxxxxx>
>Signed-off-by: Stephan Mueller <smueller@xxxxxxxxxx>
>---
> crypto/drbg.c | 15 ++++-----------
> 1 file changed, 4 insertions(+), 11 deletions(-)
>
>diff --git a/crypto/drbg.c b/crypto/drbg.c
>index f752da3..edf3ce0 100644
>--- a/crypto/drbg.c
>+++ b/crypto/drbg.c
>@@ -1917,6 +1917,8 @@ static inline int __init
>drbg_healthcheck_sanity(void)
> return -ENOMEM;
>
> mutex_init(&drbg->drbg_mutex);
>+ drbg->core = &drbg_cores[coreref];
>+ drbg->reseed_threshold = drbg_max_requests(drbg);
>
> /*
> * if the following tests fail, it is likely that there is a buffer
>@@ -1926,12 +1928,6 @@ static inline int __init
>drbg_healthcheck_sanity(void)
> * grave bug.
> */
>
>- /* get a valid instance of DRBG for following tests */
>- ret = drbg_instantiate(drbg, NULL, coreref, pr);
>- if (ret) {
>- rc = ret;
>- goto outbuf;
>- }
> max_addtllen = drbg_max_addtl(drbg);
> max_request_bytes = drbg_max_request_bytes(drbg);
> drbg_string_fill(&addtl, buf, max_addtllen + 1);
>@@ -1941,10 +1937,9 @@ static inline int __init
>drbg_healthcheck_sanity(void)
> /* overflow max_bits */
> len = drbg_generate(drbg, buf, (max_request_bytes + 1), NULL);
> BUG_ON(0 < len);
>- drbg_uninstantiate(drbg);
>
> /* overflow max addtllen with personalization string */
>- ret = drbg_instantiate(drbg, &addtl, coreref, pr);
>+ ret = drbg_seed(drbg, &addtl, false);
> BUG_ON(0 == ret);
> /* all tests passed */
> rc = 0;
>@@ -1952,9 +1947,7 @@ static inline int __init
>drbg_healthcheck_sanity(void)
> pr_devel("DRBG: Sanity tests for failure code paths successfully "
> "completed\n");
>
>- drbg_uninstantiate(drbg);
>-outbuf:
>- kzfree(drbg);
>+ kfree(drbg);
> return rc;
> }
>
>--
>2.7.4
>
>
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