crypto: testmgr - add panic_on_fail module parameter
Add a module parameter cryptomgr.panic_on_fail which causes the kernel to panic if any crypto self-tests fail. Use cases: - More easily detect crypto self-test failures by boot testing, e.g. on KernelCI. - Get a bug report if syzkaller manages to use the template system to instantiate an algorithm that fails its self-tests. The command-line option "fips=1" already does this, but it also makes other changes not wanted for general testing, such as disabling "unapproved" algorithms. panic_on_fail just does what it says. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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@ -45,6 +45,9 @@ static bool notests;
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module_param(notests, bool, 0644);
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MODULE_PARM_DESC(notests, "disable crypto self-tests");
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static bool panic_on_fail;
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module_param(panic_on_fail, bool, 0444);
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#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
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static bool noextratests;
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module_param(noextratests, bool, 0644);
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@ -4109,8 +4112,9 @@ int alg_test(const char *driver, const char *alg, u32 type, u32 mask)
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type, mask);
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test_done:
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if (fips_enabled && rc)
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panic("%s: %s alg self test failed in fips mode!\n", driver, alg);
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if (rc && (fips_enabled || panic_on_fail))
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panic("alg: self-tests for %s (%s) failed in %s mode!\n",
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driver, alg, fips_enabled ? "fips" : "panic_on_fail");
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if (fips_enabled && !rc)
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pr_info("alg: self-tests for %s (%s) passed\n", driver, alg);
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