[XFRM]: Drop packets when replay counter would overflow

[pandora-kernel.git] / crypto / xcbc.c

diff --git a/crypto/xcbc.c b/crypto/xcbc.c
index 53e8ccb..a82959d 100644 (file)
--- a/crypto/xcbc.c
+++ b/crypto/xcbc.c
@@ -19,6 +19,7 @@
  *     Kazunori Miyazawa <miyazawa@linux-ipv6.org>
  */
 
+#include <crypto/scatterwalk.h>
 #include <linux/crypto.h>
 #include <linux/err.h>
 #include <linux/hardirq.h>
@@ -27,7 +28,6 @@
 #include <linux/rtnetlink.h>
 #include <linux/slab.h>
 #include <linux/scatterlist.h>
-#include "internal.h"
 
 static u_int32_t ks[12] = {0x01010101, 0x01010101, 0x01010101, 0x01010101,
                           0x02020202, 0x02020202, 0x02020202, 0x02020202,
@@ -120,7 +120,7 @@ static int crypto_xcbc_digest_update2(struct hash_desc *pdesc,
 
        do {
 
-               struct page *pg = sg[i].page;
+               struct page *pg = sg_page(&sg[i]);
                unsigned int offset = sg[i].offset;
                unsigned int slen = sg[i].length;
 
@@ -288,12 +288,18 @@ static void xcbc_exit_tfm(struct crypto_tfm *tfm)
        crypto_free_cipher(ctx->child);
 }
 
-static struct crypto_instance *xcbc_alloc(void *param, unsigned int len)
+static struct crypto_instance *xcbc_alloc(struct rtattr **tb)
 {
        struct crypto_instance *inst;
        struct crypto_alg *alg;
-       alg = crypto_get_attr_alg(param, len, CRYPTO_ALG_TYPE_CIPHER,
-                                 CRYPTO_ALG_TYPE_HASH_MASK | CRYPTO_ALG_ASYNC);
+       int err;
+
+       err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_HASH);
+       if (err)
+               return ERR_PTR(err);
+
+       alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
+                                 CRYPTO_ALG_TYPE_MASK);
        if (IS_ERR(alg))
                return ERR_PTR(PTR_ERR(alg));
 
@@ -301,7 +307,8 @@ static struct crypto_instance *xcbc_alloc(void *param, unsigned int len)
        case 16:
                break;
        default:
-               return ERR_PTR(PTR_ERR(alg));
+               inst = ERR_PTR(-EINVAL);
+               goto out_put_alg;
        }
 
        inst = crypto_alloc_instance("xcbc", alg);
@@ -314,10 +321,7 @@ static struct crypto_instance *xcbc_alloc(void *param, unsigned int len)
        inst->alg.cra_alignmask = alg->cra_alignmask;
        inst->alg.cra_type = &crypto_hash_type;
 
-       inst->alg.cra_hash.digestsize =
-               (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) ==
-               CRYPTO_ALG_TYPE_HASH ? alg->cra_hash.digestsize :
-                                      alg->cra_blocksize;
+       inst->alg.cra_hash.digestsize = alg->cra_blocksize;
        inst->alg.cra_ctxsize = sizeof(struct crypto_xcbc_ctx) +
                                ALIGN(inst->alg.cra_blocksize * 3, sizeof(void *));
        inst->alg.cra_init = xcbc_init_tfm;