diff options
| author | Steffen Klassert <steffen.klassert@secunet.com> | 2011-09-27 07:26:10 +0200 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2017-12-21 01:53:26 +0100 |
| commit | e14dbb5781453133d564b420de03759999108590 (patch) | |
| tree | 8bc9e636bd81738de4adc0c178a27e6ac3a2c960 | |
| parent | b08659c52c278f0ea0c23a216e47415760f432fd (diff) | |
crypto: Add userspace report for shash type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
(cherry picked from commit f4d663ce6357e533f107ce3789bd8848c94bea81)
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
| -rw-r--r-- | crypto/shash.c | 21 | ||||
| -rw-r--r-- | include/linux/cryptouser.h | 7 |
2 files changed, 28 insertions, 0 deletions
diff --git a/crypto/shash.c b/crypto/shash.c index 76f74b963151..ea8a9c6e21e3 100644 --- a/crypto/shash.c +++ b/crypto/shash.c @@ -17,6 +17,8 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/seq_file.h> +#include <linux/cryptouser.h> +#include <net/netlink.h> #include "internal.h" @@ -522,6 +524,24 @@ static unsigned int crypto_shash_extsize(struct crypto_alg *alg) return alg->cra_ctxsize; } +static int crypto_shash_report(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_report_hash rhash; + struct shash_alg *salg = __crypto_shash_alg(alg); + + snprintf(rhash.type, CRYPTO_MAX_ALG_NAME, "%s", "shash"); + rhash.blocksize = alg->cra_blocksize; + rhash.digestsize = salg->digestsize; + + NLA_PUT(skb, CRYPTOCFGA_REPORT_HASH, + sizeof(struct crypto_report_hash), &rhash); + + return 0; + +nla_put_failure: + return -EMSGSIZE; +} + static void crypto_shash_show(struct seq_file *m, struct crypto_alg *alg) __attribute__ ((unused)); static void crypto_shash_show(struct seq_file *m, struct crypto_alg *alg) @@ -541,6 +561,7 @@ static const struct crypto_type crypto_shash_type = { #ifdef CONFIG_PROC_FS .show = crypto_shash_show, #endif + .report = crypto_shash_report, .maskclear = ~CRYPTO_ALG_TYPE_MASK, .maskset = CRYPTO_ALG_TYPE_MASK, .type = CRYPTO_ALG_TYPE_SHASH, diff --git a/include/linux/cryptouser.h b/include/linux/cryptouser.h index 7a849b4c3b82..ee4688221975 100644 --- a/include/linux/cryptouser.h +++ b/include/linux/cryptouser.h @@ -37,6 +37,7 @@ enum crypto_attr_type_t { CRYPTOCFGA_UNSPEC, CRYPTOCFGA_PRIORITY_VAL, /* __u32 */ CRYPTOCFGA_REPORT_LARVAL, /* struct crypto_report_larval */ + CRYPTOCFGA_REPORT_HASH, /* struct crypto_report_hash */ __CRYPTOCFGA_MAX #define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1) @@ -55,3 +56,9 @@ struct crypto_user_alg { struct crypto_report_larval { char type[CRYPTO_MAX_NAME]; }; + +struct crypto_report_hash { + char type[CRYPTO_MAX_NAME]; + unsigned int blocksize; + unsigned int digestsize; +}; |