linux-kernel - Re: [PATCH net 1/3] selftests: net: tls: check if FIPS mode is enabled

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Message-ID: <20230608191712.483dfe35@kernel.org>
Date:   Thu, 8 Jun 2023 19:17:12 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Magali Lemes <magali.lemes@...onical.com>
Cc:     davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
        shuah@...nel.org, vfedorenko@...ek.ru,
        tianjia.zhang@...ux.alibaba.com, andrei.gherzan@...onical.com,
        netdev@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net 1/3] selftests: net: tls: check if FIPS mode is
 enabled

On Wed,  7 Jun 2023 14:43:00 -0300 Magali Lemes wrote:
>  FIXTURE(tls)
>  {
> -	int fd, cfd;
> +	int fd, cfd, fips_enabled;

put bool fips_non_compliant into the variant, and mark down
the cases which need to be skipped. There is fewer variants
than tests

>  	bool notls;
>  };
>  
> @@ -309,7 +309,22 @@ FIXTURE_SETUP(tls)
>  {
>  	struct tls_crypto_info_keys tls12;
>  	int one = 1;
> -	int ret;
> +	int ret, res;
> +	FILE *f;
> +
> +	self->fips_enabled = 0;
> +	f = fopen("/proc/sys/crypto/fips_enabled", "r");
> +	if (f) {
> +		res = fscanf(f, "%d", &self->fips_enabled);
> +		if (res != 1)
> +			ksft_print_msg("ERROR: Couldn't read /proc/sys/crypto/fips_enabled\n");
> +		fclose(f);
> +	}

Cache the fips_enabled in a static global variable, no point reading 
it every time.
-- 
pw-bot: cr