2022-12-15 17:06:50

by Arnd Bergmann

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Subject: [PATCH] crypto: certs: fix FIPS selftest depenency

From: Arnd Bergmann <[email protected]>

The selftest code is built into the x509_key_parser module, and depends
on the pkcs7_message_parser module, which in turn has a dependency on
the key parser, creating a dependency loop and a resulting link
failure when the pkcs7 code is a loadable module:

ld: crypto/asymmetric_keys/selftest.o: in function `fips_signature_selftest':
crypto/asymmetric_keys/selftest.c:205: undefined reference to `pkcs7_parse_message'
ld: crypto/asymmetric_keys/selftest.c:209: undefined reference to `pkcs7_supply_detached_data'
ld: crypto/asymmetric_keys/selftest.c:211: undefined reference to `pkcs7_verify'
ld: crypto/asymmetric_keys/selftest.c:215: undefined reference to `pkcs7_validate_trust'
ld: crypto/asymmetric_keys/selftest.c:219: undefined reference to `pkcs7_free_message'

Avoid this by only allowing the selftest to be enabled when either
both parts are loadable modules, or both are built-in.

Signed-off-by: Arnd Bergmann <[email protected]>
---
crypto/asymmetric_keys/Kconfig | 2 +-
crypto/asymmetric_keys/pkcs7_verify.c | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/crypto/asymmetric_keys/Kconfig b/crypto/asymmetric_keys/Kconfig
index 3df3fe4ed95f..1ef3b46d6f6e 100644
--- a/crypto/asymmetric_keys/Kconfig
+++ b/crypto/asymmetric_keys/Kconfig
@@ -83,6 +83,6 @@ config FIPS_SIGNATURE_SELFTEST
for FIPS.
depends on KEYS
depends on ASYMMETRIC_KEY_TYPE
- depends on PKCS7_MESSAGE_PARSER
+ depends on PKCS7_MESSAGE_PARSER=X509_CERTIFICATE_PARSER

endif # ASYMMETRIC_KEY_TYPE
diff --git a/crypto/asymmetric_keys/pkcs7_verify.c b/crypto/asymmetric_keys/pkcs7_verify.c
index f6321c785714..4fa769c4bcdb 100644
--- a/crypto/asymmetric_keys/pkcs7_verify.c
+++ b/crypto/asymmetric_keys/pkcs7_verify.c
@@ -485,3 +485,4 @@ int pkcs7_supply_detached_data(struct pkcs7_message *pkcs7,
pkcs7->data_len = datalen;
return 0;
}
+EXPORT_SYMBOL_GPL(pkcs7_supply_detached_data);
--
2.35.1


2022-12-27 19:23:44

by Jarkko Sakkinen

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Subject: Re: [PATCH] crypto: certs: fix FIPS selftest depenency

On Thu, Dec 15, 2022 at 06:02:52PM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <[email protected]>
>
> The selftest code is built into the x509_key_parser module, and depends
> on the pkcs7_message_parser module, which in turn has a dependency on
> the key parser, creating a dependency loop and a resulting link
> failure when the pkcs7 code is a loadable module:
>
> ld: crypto/asymmetric_keys/selftest.o: in function `fips_signature_selftest':
> crypto/asymmetric_keys/selftest.c:205: undefined reference to `pkcs7_parse_message'
> ld: crypto/asymmetric_keys/selftest.c:209: undefined reference to `pkcs7_supply_detached_data'
> ld: crypto/asymmetric_keys/selftest.c:211: undefined reference to `pkcs7_verify'
> ld: crypto/asymmetric_keys/selftest.c:215: undefined reference to `pkcs7_validate_trust'
> ld: crypto/asymmetric_keys/selftest.c:219: undefined reference to `pkcs7_free_message'
>
> Avoid this by only allowing the selftest to be enabled when either
> both parts are loadable modules, or both are built-in.
>
> Signed-off-by: Arnd Bergmann <[email protected]>
> ---
> crypto/asymmetric_keys/Kconfig | 2 +-
> crypto/asymmetric_keys/pkcs7_verify.c | 1 +
> 2 files changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/crypto/asymmetric_keys/Kconfig b/crypto/asymmetric_keys/Kconfig
> index 3df3fe4ed95f..1ef3b46d6f6e 100644
> --- a/crypto/asymmetric_keys/Kconfig
> +++ b/crypto/asymmetric_keys/Kconfig
> @@ -83,6 +83,6 @@ config FIPS_SIGNATURE_SELFTEST
> for FIPS.
> depends on KEYS
> depends on ASYMMETRIC_KEY_TYPE
> - depends on PKCS7_MESSAGE_PARSER
> + depends on PKCS7_MESSAGE_PARSER=X509_CERTIFICATE_PARSER
>
> endif # ASYMMETRIC_KEY_TYPE
> diff --git a/crypto/asymmetric_keys/pkcs7_verify.c b/crypto/asymmetric_keys/pkcs7_verify.c
> index f6321c785714..4fa769c4bcdb 100644
> --- a/crypto/asymmetric_keys/pkcs7_verify.c
> +++ b/crypto/asymmetric_keys/pkcs7_verify.c
> @@ -485,3 +485,4 @@ int pkcs7_supply_detached_data(struct pkcs7_message *pkcs7,
> pkcs7->data_len = datalen;
> return 0;
> }
> +EXPORT_SYMBOL_GPL(pkcs7_supply_detached_data);
> --
> 2.35.1
>

Reviewed-by: Jarkko Sakkinen <[email protected]>

BR, Jarkko

2022-12-28 13:25:35

by Ben Boeckel

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Subject: Re: [PATCH] crypto: certs: fix FIPS selftest depenency

On Tue, Dec 27, 2022 at 19:22:38 +0000, Jarkko Sakkinen wrote:
> Reviewed-by: Jarkko Sakkinen <[email protected]>

Might want to fix this when picked:

> Subject: Re: [PATCH] crypto: certs: fix FIPS selftest depenency
dependency ^^^^^^^^^

--Ben

2023-01-04 13:07:20

by Jarkko Sakkinen

[permalink] [raw]
Subject: Re: [PATCH] crypto: certs: fix FIPS selftest depenency

On Wed, Dec 28, 2022 at 08:19:30AM -0500, Ben Boeckel wrote:
> On Tue, Dec 27, 2022 at 19:22:38 +0000, Jarkko Sakkinen wrote:
> > Reviewed-by: Jarkko Sakkinen <[email protected]>
>
> Might want to fix this when picked:
>
> > Subject: Re: [PATCH] crypto: certs: fix FIPS selftest depenency
> dependency ^^^^^^^^^
>
> --Ben

Thank you! I updated the patch accordingly.

It should be soon available in linux-next tree.

BR, Jarkko