Re: [PATCH v2] crypto: include crypto- module prefix in template

From: Mathias Krause
Date: Mon Nov 24 2014 - 17:57:40 EST


On 24 November 2014 at 23:24, Kees Cook <keescook@xxxxxxxxxxxx> wrote:
> This adds the module loading prefix "crypto-" to the template lookup
> as well.
>
> For example, attempting to load 'vfat(blowfish)' via AF_ALG now correctly
> includes the "crypto-" prefix at every level, correctly rejecting "vfat":
>
> net-pf-38
> algif-hash
> crypto-vfat(blowfish)
> crypto-vfat(blowfish)-all
> crypto-vfat
>
> Reported-by: Mathias Krause <minipli@xxxxxxxxxxxxxx>
> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
> ---
> crypto/algapi.c | 4 ++--
> crypto/authenc.c | 1 +
> crypto/authencesn.c | 1 +
> crypto/cbc.c | 1 +
> crypto/chainiv.c | 1 +
> crypto/cmac.c | 1 +
> crypto/cts.c | 1 +
> crypto/ecb.c | 1 +
> crypto/eseqiv.c | 1 +
> crypto/hmac.c | 1 +
> crypto/lrw.c | 1 +
> crypto/pcbc.c | 1 +
> crypto/seqiv.c | 1 +
> crypto/vmac.c | 1 +
> crypto/xcbc.c | 1 +
> crypto/xts.c | 1 +
> 16 files changed, 17 insertions(+), 2 deletions(-)

The following ones are still missing:

arch/x86/crypto/fpu.c: needs MODULE_ALIAS_CRYPTO("fpu")
crypto/ccm.c: needs MODULE_ALIAS_CRYPTO("ccm")
crypto/cryptd.c: needs MODULE_ALIAS_CRYPTO("cryptd")
crypto/ctr.c: needs MODULE_ALIAS_CRYPTO("ctr")
crypto/gcm.c: needs MODULE_ALIAS_CRYPTO("gcm")
crypto/mcryptd.c: needs MODULE_ALIAS_CRYPTO("mcryptd")
crypto/pcrypt.c: needs MODULE_ALIAS_CRYPTO("pcrypt")

With that fixed,

Acked-by: Mathias Krause <minipli@xxxxxxxxxxxxxx>

>
> diff --git a/crypto/algapi.c b/crypto/algapi.c
> index e8d3a7dca8c4..71a8143e23b1 100644
> --- a/crypto/algapi.c
> +++ b/crypto/algapi.c
> @@ -509,8 +509,8 @@ static struct crypto_template *__crypto_lookup_template(const char *name)
>
> struct crypto_template *crypto_lookup_template(const char *name)
> {
> - return try_then_request_module(__crypto_lookup_template(name), "%s",
> - name);
> + return try_then_request_module(__crypto_lookup_template(name),
> + "crypto-%s", name);
> }
> EXPORT_SYMBOL_GPL(crypto_lookup_template);
>
> diff --git a/crypto/authenc.c b/crypto/authenc.c
> index e1223559d5df..78fb16cab13f 100644
> --- a/crypto/authenc.c
> +++ b/crypto/authenc.c
> @@ -721,3 +721,4 @@ module_exit(crypto_authenc_module_exit);
>
> MODULE_LICENSE("GPL");
> MODULE_DESCRIPTION("Simple AEAD wrapper for IPsec");
> +MODULE_ALIAS_CRYPTO("authenc");
> diff --git a/crypto/authencesn.c b/crypto/authencesn.c
> index 4be0dd4373a9..024bff2344fc 100644
> --- a/crypto/authencesn.c
> +++ b/crypto/authencesn.c
> @@ -814,3 +814,4 @@ module_exit(crypto_authenc_esn_module_exit);
> MODULE_LICENSE("GPL");
> MODULE_AUTHOR("Steffen Klassert <steffen.klassert@xxxxxxxxxxx>");
> MODULE_DESCRIPTION("AEAD wrapper for IPsec with extended sequence numbers");
> +MODULE_ALIAS_CRYPTO("authencesn");
> diff --git a/crypto/cbc.c b/crypto/cbc.c
> index 61ac42e1e32b..780ee27b2d43 100644
> --- a/crypto/cbc.c
> +++ b/crypto/cbc.c
> @@ -289,3 +289,4 @@ module_exit(crypto_cbc_module_exit);
>
> MODULE_LICENSE("GPL");
> MODULE_DESCRIPTION("CBC block cipher algorithm");
> +MODULE_ALIAS_CRYPTO("cbc");
> diff --git a/crypto/chainiv.c b/crypto/chainiv.c
> index 9c294c8f9a07..63c17d5992f7 100644
> --- a/crypto/chainiv.c
> +++ b/crypto/chainiv.c
> @@ -359,3 +359,4 @@ module_exit(chainiv_module_exit);
>
> MODULE_LICENSE("GPL");
> MODULE_DESCRIPTION("Chain IV Generator");
> +MODULE_ALIAS_CRYPTO("chainiv");
> diff --git a/crypto/cmac.c b/crypto/cmac.c
> index 50880cf17fad..7a8bfbd548f6 100644
> --- a/crypto/cmac.c
> +++ b/crypto/cmac.c
> @@ -313,3 +313,4 @@ module_exit(crypto_cmac_module_exit);
>
> MODULE_LICENSE("GPL");
> MODULE_DESCRIPTION("CMAC keyed hash algorithm");
> +MODULE_ALIAS_CRYPTO("cmac");
> diff --git a/crypto/cts.c b/crypto/cts.c
> index 133f0874c95e..bd9405820e8a 100644
> --- a/crypto/cts.c
> +++ b/crypto/cts.c
> @@ -351,3 +351,4 @@ module_exit(crypto_cts_module_exit);
>
> MODULE_LICENSE("Dual BSD/GPL");
> MODULE_DESCRIPTION("CTS-CBC CipherText Stealing for CBC");
> +MODULE_ALIAS_CRYPTO("cts");
> diff --git a/crypto/ecb.c b/crypto/ecb.c
> index 935cfef4aa84..12011aff0971 100644
> --- a/crypto/ecb.c
> +++ b/crypto/ecb.c
> @@ -185,3 +185,4 @@ module_exit(crypto_ecb_module_exit);
>
> MODULE_LICENSE("GPL");
> MODULE_DESCRIPTION("ECB block cipher algorithm");
> +MODULE_ALIAS_CRYPTO("ecb");
> diff --git a/crypto/eseqiv.c b/crypto/eseqiv.c
> index bf7ab4a89493..f116fae766f8 100644
> --- a/crypto/eseqiv.c
> +++ b/crypto/eseqiv.c
> @@ -267,3 +267,4 @@ module_exit(eseqiv_module_exit);
>
> MODULE_LICENSE("GPL");
> MODULE_DESCRIPTION("Encrypted Sequence Number IV Generator");
> +MODULE_ALIAS_CRYPTO("eseqiv");
> diff --git a/crypto/hmac.c b/crypto/hmac.c
> index e392219ddc61..72e38c098bb3 100644
> --- a/crypto/hmac.c
> +++ b/crypto/hmac.c
> @@ -268,3 +268,4 @@ module_exit(hmac_module_exit);
>
> MODULE_LICENSE("GPL");
> MODULE_DESCRIPTION("HMAC hash algorithm");
> +MODULE_ALIAS_CRYPTO("hmac");
> diff --git a/crypto/lrw.c b/crypto/lrw.c
> index ba42acc4deba..6f9908a7ebcb 100644
> --- a/crypto/lrw.c
> +++ b/crypto/lrw.c
> @@ -400,3 +400,4 @@ module_exit(crypto_module_exit);
>
> MODULE_LICENSE("GPL");
> MODULE_DESCRIPTION("LRW block cipher mode");
> +MODULE_ALIAS_CRYPTO("lrw");
> diff --git a/crypto/pcbc.c b/crypto/pcbc.c
> index d1b8bdfb5855..f654965f0933 100644
> --- a/crypto/pcbc.c
> +++ b/crypto/pcbc.c
> @@ -295,3 +295,4 @@ module_exit(crypto_pcbc_module_exit);
>
> MODULE_LICENSE("GPL");
> MODULE_DESCRIPTION("PCBC block cipher algorithm");
> +MODULE_ALIAS_CRYPTO("pcbc");
> diff --git a/crypto/seqiv.c b/crypto/seqiv.c
> index ee190fcedcd2..9daa854cc485 100644
> --- a/crypto/seqiv.c
> +++ b/crypto/seqiv.c
> @@ -362,3 +362,4 @@ module_exit(seqiv_module_exit);
>
> MODULE_LICENSE("GPL");
> MODULE_DESCRIPTION("Sequence Number IV Generator");
> +MODULE_ALIAS_CRYPTO("seqiv");
> diff --git a/crypto/vmac.c b/crypto/vmac.c
> index d84c24bd7ff7..df76a816cfb2 100644
> --- a/crypto/vmac.c
> +++ b/crypto/vmac.c
> @@ -713,3 +713,4 @@ module_exit(vmac_module_exit);
>
> MODULE_LICENSE("GPL");
> MODULE_DESCRIPTION("VMAC hash algorithm");
> +MODULE_ALIAS_CRYPTO("vmac");
> diff --git a/crypto/xcbc.c b/crypto/xcbc.c
> index a5fbdf3738cf..df90b332554c 100644
> --- a/crypto/xcbc.c
> +++ b/crypto/xcbc.c
> @@ -286,3 +286,4 @@ module_exit(crypto_xcbc_module_exit);
>
> MODULE_LICENSE("GPL");
> MODULE_DESCRIPTION("XCBC keyed hash algorithm");
> +MODULE_ALIAS_CRYPTO("xcbc");
> diff --git a/crypto/xts.c b/crypto/xts.c
> index ca1608f44cb5..f6fd43f100c8 100644
> --- a/crypto/xts.c
> +++ b/crypto/xts.c
> @@ -362,3 +362,4 @@ module_exit(crypto_module_exit);
>
> MODULE_LICENSE("GPL");
> MODULE_DESCRIPTION("XTS block cipher mode");
> +MODULE_ALIAS_CRYPTO("xts");
> --

Thanks,
Mathias
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