We add a report function pointer to struct crypto_type. This function
pointer is used from the crypto userspace configuration API to report
crypto algorithms to userspace.
Signed-off-by: Steffen Klassert <steffen.klassert@xxxxxxxxxxx>
---
crypto/crypto_user.c | 8 ++++++++
include/crypto/algapi.h | 2 ++
2 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c
index 7c6f78b..12cec5e 100644
--- a/crypto/crypto_user.c
+++ b/crypto/crypto_user.c
@@ -83,7 +83,15 @@ static int crypto_report_one(struct crypto_alg *alg,
ualg->cru_priority = alg->cra_priority;
ualg->cru_refcnt = atomic_read(&alg->cra_refcnt);
+ if (alg->cra_type && alg->cra_type->report) {
+ if (alg->cra_type->report(skb, alg))
+ goto nla_put_failure;
+ }
+
return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
}
static int crypto_report_alg(struct crypto_alg *alg,
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index 59c3e5b..ecc721d 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -15,6 +15,7 @@
#include <linux/crypto.h>
#include <linux/list.h>
#include <linux/kernel.h>
+#include <linux/skbuff.h>
struct module;
struct rtattr;
@@ -26,6 +27,7 @@ struct crypto_type {
int (*init)(struct crypto_tfm *tfm, u32 type, u32 mask);
int (*init_tfm)(struct crypto_tfm *tfm);
void (*show)(struct seq_file *m, struct crypto_alg *alg);
+ int (*report)(struct sk_buff *skb, struct crypto_alg *alg);
struct crypto_alg *(*lookup)(const char *name, u32 type, u32 mask);
unsigned int type;
--
1.7.0.4
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