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[CRYPTO] templates: Pass type/mask when creating instances

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This patch passes the type/mask along when constructing instances of
templates.  This is in preparation for templates that may support
multiple types of instances depending on what is requested.  For example,
the planned software async crypto driver will use this construct.

For the moment this allows us to check whether the instance constructed
is of the correct type and avoid returning success if the type does not
match.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2007-01-01 18:37:02 +11:00
parent 6158efc090
commit ebc610e5bc
10 changed files with 117 additions and 37 deletions
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28
crypto/cryptomgr.c
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@@ -26,14 +26,19 @@
struct cryptomgr_param {
struct work_struct work;
struct rtattr *tb[CRYPTOA_MAX];
struct {
struct rtattr attr;
struct crypto_attr_type data;
} type;
struct {
struct rtattr attr;
struct crypto_attr_alg data;
} alg;
struct {
u32 type;
u32 mask;
char name[CRYPTO_MAX_ALG_NAME];
} larval;
@@ -53,7 +58,7 @@ static void cryptomgr_probe(struct work_struct *work)
goto err;
do {
inst = tmpl->alloc(&param->alg, sizeof(param->alg));
inst = tmpl->alloc(param->tb);
if (IS_ERR(inst))
err = PTR_ERR(inst);
else if ((err = crypto_register_instance(tmpl, inst)))
@@ -70,8 +75,8 @@ out:
return;
err:
crypto_larval_error(param->larval.name, param->larval.type,
param->larval.mask);
crypto_larval_error(param->larval.name, param->type.data.type,
param->type.data.mask);
goto out;
}
@@ -82,7 +87,7 @@ static int cryptomgr_schedule_probe(struct crypto_larval *larval)
const char *p;
unsigned int len;
param = kmalloc(sizeof(*param), GFP_KERNEL);
param = kzalloc(sizeof(*param), GFP_KERNEL);
if (!param)
goto err;
@@ -94,7 +99,6 @@ static int cryptomgr_schedule_probe(struct crypto_larval *larval)
goto err_free_param;
memcpy(param->template, name, len);
param->template[len] = 0;
name = p + 1;
for (p = name; isalnum(*p) || *p == '-' || *p == '_'; p++)
@@ -104,14 +108,18 @@ static int cryptomgr_schedule_probe(struct crypto_larval *larval)
if (!len || *p != ')' || p[1])
goto err_free_param;
param->type.attr.rta_len = sizeof(param->type);
param->type.attr.rta_type = CRYPTOA_TYPE;
param->type.data.type = larval->alg.cra_flags;
param->type.data.mask = larval->mask;
param->tb[CRYPTOA_TYPE - 1] = &param->type.attr;
param->alg.attr.rta_len = sizeof(param->alg);
param->alg.attr.rta_type = CRYPTOA_ALG;
memcpy(param->alg.data.name, name, len);
param->alg.data.name[len] = 0;
param->tb[CRYPTOA_ALG - 1] = &param->alg.attr;
memcpy(param->larval.name, larval->alg.cra_name, CRYPTO_MAX_ALG_NAME);
param->larval.type = larval->alg.cra_flags;
param->larval.mask = larval->mask;
INIT_WORK(&param->work, cryptomgr_probe);
schedule_work(&param->work);