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[CRYPTO] api: Add support for multiple template parameters

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This patch adds support for having multiple parameters to
a template, separated by a comma.  It also adds support
for integer parameters in addition to the current algorithm
parameter type.

This will be used by the authenc template which will have
four parameters: the authentication algorithm, the encryption
algorithm, the authentication size and the encryption key
length.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2007-08-29 19:27:26 +08:00 • committed by David S. Miller
parent 1ae978208e
commit 39e1ee011f
3 changed files with 83 additions and 26 deletions
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8
crypto/algapi.c
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@ -439,13 +439,15 @@ EXPORT_SYMBOL_GPL(crypto_unregister_notifier);
struct crypto_attr_type *crypto_get_attr_type(struct rtattr **tb)
{
struct rtattr *rta = tb[CRYPTOA_TYPE - 1];
struct rtattr *rta = tb[0];
struct crypto_attr_type *algt;
if (!rta)
return ERR_PTR(-ENOENT);
if (RTA_PAYLOAD(rta) < sizeof(*algt))
return ERR_PTR(-EINVAL);
if (rta->rta_type != CRYPTOA_TYPE)
return ERR_PTR(-EINVAL);
algt = RTA_DATA(rta);
@ -470,13 +472,15 @@ EXPORT_SYMBOL_GPL(crypto_check_attr_type);
struct crypto_alg *crypto_get_attr_alg(struct rtattr **tb, u32 type, u32 mask)
{
struct rtattr *rta = tb[CRYPTOA_ALG - 1];
struct rtattr *rta = tb[1];
struct crypto_attr_alg *alga;
if (!rta)
return ERR_PTR(-ENOENT);
if (RTA_PAYLOAD(rta) < sizeof(*alga))
return ERR_PTR(-EINVAL);
if (rta->rta_type != CRYPTOA_ALG)
return ERR_PTR(-EINVAL);
alga = RTA_DATA(rta);
alga->name[CRYPTO_MAX_ALG_NAME - 1] = 0;