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authorHerbert Xu <herbert@gondor.apana.org.au>2017-04-06 11:16:08 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2017-04-10 14:17:26 +0300
commit4473710df1f8779c59b33737eeaa151596907761 (patch)
tree1c2a0a8e17befe7dc53385d20808300af58d599e /crypto
parentca3bff70ab320a9132c5524c495455526df4b078 (diff)
downloadlinux-4473710df1f8779c59b33737eeaa151596907761.tar.xz
crypto: user - Prepare for CRYPTO_MAX_ALG_NAME expansion
This patch hard-codes CRYPTO_MAX_NAME in the user-space API to 64, which is the current value of CRYPTO_MAX_ALG_NAME. This patch also replaces all remaining occurences of CRYPTO_MAX_ALG_NAME in the user-space API with CRYPTO_MAX_NAME. This way the user-space API will not be modified when we raise the value of CRYPTO_MAX_ALG_NAME. Furthermore, the code has been updated to handle names longer than the user-space API. They will be truncated. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Tested-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/crypto_user.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c
index a90404a0c5ff..89acaab1d909 100644
--- a/crypto/crypto_user.c
+++ b/crypto/crypto_user.c
@@ -83,7 +83,7 @@ static int crypto_report_cipher(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_report_cipher rcipher;
- strncpy(rcipher.type, "cipher", sizeof(rcipher.type));
+ strlcpy(rcipher.type, "cipher", sizeof(rcipher.type));
rcipher.blocksize = alg->cra_blocksize;
rcipher.min_keysize = alg->cra_cipher.cia_min_keysize;
@@ -102,7 +102,7 @@ static int crypto_report_comp(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_report_comp rcomp;
- strncpy(rcomp.type, "compression", sizeof(rcomp.type));
+ strlcpy(rcomp.type, "compression", sizeof(rcomp.type));
if (nla_put(skb, CRYPTOCFGA_REPORT_COMPRESS,
sizeof(struct crypto_report_comp), &rcomp))
goto nla_put_failure;
@@ -116,7 +116,7 @@ static int crypto_report_acomp(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_report_acomp racomp;
- strncpy(racomp.type, "acomp", sizeof(racomp.type));
+ strlcpy(racomp.type, "acomp", sizeof(racomp.type));
if (nla_put(skb, CRYPTOCFGA_REPORT_ACOMP,
sizeof(struct crypto_report_acomp), &racomp))
@@ -131,7 +131,7 @@ static int crypto_report_akcipher(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_report_akcipher rakcipher;
- strncpy(rakcipher.type, "akcipher", sizeof(rakcipher.type));
+ strlcpy(rakcipher.type, "akcipher", sizeof(rakcipher.type));
if (nla_put(skb, CRYPTOCFGA_REPORT_AKCIPHER,
sizeof(struct crypto_report_akcipher), &rakcipher))
@@ -146,7 +146,7 @@ static int crypto_report_kpp(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_report_kpp rkpp;
- strncpy(rkpp.type, "kpp", sizeof(rkpp.type));
+ strlcpy(rkpp.type, "kpp", sizeof(rkpp.type));
if (nla_put(skb, CRYPTOCFGA_REPORT_KPP,
sizeof(struct crypto_report_kpp), &rkpp))
@@ -160,10 +160,10 @@ nla_put_failure:
static int crypto_report_one(struct crypto_alg *alg,
struct crypto_user_alg *ualg, struct sk_buff *skb)
{
- strncpy(ualg->cru_name, alg->cra_name, sizeof(ualg->cru_name));
- strncpy(ualg->cru_driver_name, alg->cra_driver_name,
+ strlcpy(ualg->cru_name, alg->cra_name, sizeof(ualg->cru_name));
+ strlcpy(ualg->cru_driver_name, alg->cra_driver_name,
sizeof(ualg->cru_driver_name));
- strncpy(ualg->cru_module_name, module_name(alg->cra_module),
+ strlcpy(ualg->cru_module_name, module_name(alg->cra_module),
sizeof(ualg->cru_module_name));
ualg->cru_type = 0;
@@ -176,7 +176,7 @@ static int crypto_report_one(struct crypto_alg *alg,
if (alg->cra_flags & CRYPTO_ALG_LARVAL) {
struct crypto_report_larval rl;
- strncpy(rl.type, "larval", sizeof(rl.type));
+ strlcpy(rl.type, "larval", sizeof(rl.type));
if (nla_put(skb, CRYPTOCFGA_REPORT_LARVAL,
sizeof(struct crypto_report_larval), &rl))
goto nla_put_failure;