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From: Mimi Zohar <zohar@linux.ibm.com>
To: Kairui Song <kasong@redhat.com>, linux-kernel@vger.kernel.org
Cc: dhowells@redhat.com, dwmw2@infradead.org,
	jwboyer@fedoraproject.org, keyrings@vger.kernel.org,
	jmorris@namei.org, serge@hallyn.com, bauerman@linux.ibm.com,
	ebiggers@google.com, nayna@linux.ibm.com, dyoung@redhat.com,
	linux-integrity@vger.kernel.org, kexec@lists.infradead.org
Subject: Re: [RFC PATCH v2 2/2] kexec, KEYS: Make use of platform keyring for signature verify
Date: Tue, 15 Jan 2019 10:46:58 -0500	[thread overview]
Message-ID: <1547567218.4156.289.camel@linux.ibm.com> (raw)
In-Reply-To: <20190115094542.17129-3-kasong@redhat.com>

On Tue, 2019-01-15 at 17:45 +0800, Kairui Song wrote:

> diff --git a/arch/x86/kernel/kexec-bzimage64.c b/arch/x86/kernel/kexec-bzimage64.c
> index 7d97e432cbbc..a06b04065bb1 100644
> --- a/arch/x86/kernel/kexec-bzimage64.c
> +++ b/arch/x86/kernel/kexec-bzimage64.c
> @@ -534,9 +534,18 @@ static int bzImage64_cleanup(void *loader_data)
>  #ifdef CONFIG_KEXEC_BZIMAGE_VERIFY_SIG
>  static int bzImage64_verify_sig(const char *kernel, unsigned long kernel_len)
>  {
> -	return verify_pefile_signature(kernel, kernel_len,
> -				       VERIFY_USE_SECONDARY_KEYRING,
> -				       VERIFYING_KEXEC_PE_SIGNATURE);
> +	int ret;
> +	ret = verify_pefile_signature(kernel, kernel_len,
> +			VERIFY_USE_SECONDARY_KEYRING,
> +			VERIFYING_KEXEC_PE_SIGNATURE);
> +#ifdef CONFIG_INTEGRITY_PLATFORM_KEYRING

Consider using IS_ENABLED() or IS_BUILTIN().

Mimi

> +	if (ret == -ENOKEY) {
> +		ret = verify_pefile_signature(kernel, kernel_len,
> +				VERIFY_USE_PLATFORM_KEYRING,
> +				VERIFYING_KEXEC_PE_SIGNATURE);
> +	}
> +#endif
> +	return ret;
>  }
>  #endif


  reply	other threads:[~2019-01-15 15:47 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-15  9:45 [RFC PATCH v2 0/2] let kexec_file_load use platform keyring to verify the kernel image Kairui Song
2019-01-15  9:45 ` [RFC PATCH v2 1/2] integrity, KEYS: add a reference to platform keyring Kairui Song
2019-01-15 15:34   ` Mimi Zohar
2019-01-15 15:47     ` Kairui Song
2019-01-15 15:54       ` Mimi Zohar
2019-01-15  9:45 ` [RFC PATCH v2 2/2] kexec, KEYS: Make use of platform keyring for signature verify Kairui Song
2019-01-15 15:46   ` Mimi Zohar [this message]
2019-01-15 16:48     ` Kairui Song

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