1 files changed, 23 insertions, 12 deletions

diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 9d4831bd4335..00ffa7bc6c9f 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -213,7 +213,10 @@ static int ah6_output(struct xfrm_state *x, struct sk_buff *skb)
         ah->spi = x->id.spi;
         ah->seq_no = htonl(++x->replay.oseq);
         xfrm_aevent_doreplay(x);
-        ahp->icv(ahp, skb, ah->auth_data);
+        err = ah_mac_digest(ahp, skb, ah->auth_data);
+        if (err)
+                goto error_free_iph;
+        memcpy(ah->auth_data, ahp->work_icv, ahp->icv_trunc_len);
 
         err = 0;
 
@@ -251,6 +254,7 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
         u16 hdr_len;
         u16 ah_hlen;
         int nexthdr;
+        int err = -EINVAL;
 
         if (!pskb_may_pull(skb, sizeof(struct ip_auth_hdr)))
                 goto out;
@@ -292,8 +296,11 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
                 memcpy(auth_data, ah->auth_data, ahp->icv_trunc_len);
                 memset(ah->auth_data, 0, ahp->icv_trunc_len);
                 skb_push(skb, hdr_len);
-                ahp->icv(ahp, skb, ah->auth_data);
-                if (memcmp(ah->auth_data, auth_data, ahp->icv_trunc_len)) {
+                err = ah_mac_digest(ahp, skb, ah->auth_data);
+                if (err)
+                        goto free_out;
+                err = -EINVAL;
+                if (memcmp(ahp->work_icv, auth_data, ahp->icv_trunc_len)) {
                         LIMIT_NETDEBUG(KERN_WARNING "ipsec ah authentication error\n");
                         x->stats.integrity_failed++;
                         goto free_out;
@@ -310,7 +317,7 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
 free_out:
         kfree(tmp_hdr);
 out:
-        return -EINVAL;
+        return err;
 }
 
 static void ah6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, 
@@ -338,6 +345,7 @@ static int ah6_init_state(struct xfrm_state *x)
 {
         struct ah_data *ahp = NULL;
         struct xfrm_algo_desc *aalg_desc;
+        struct crypto_hash *tfm;
 
         if (!x->aalg)
                 goto error;
@@ -355,24 +363,27 @@ static int ah6_init_state(struct xfrm_state *x)
 
         ahp->key = x->aalg->alg_key;
         ahp->key_len = (x->aalg->alg_key_len+7)/8;
-        ahp->tfm = crypto_alloc_tfm(x->aalg->alg_name, 0);
-        if (!ahp->tfm)
+        tfm = crypto_alloc_hash(x->aalg->alg_name, 0, CRYPTO_ALG_ASYNC);
+        if (IS_ERR(tfm))
+                goto error;
+
+        ahp->tfm = tfm;
+        if (crypto_hash_setkey(tfm, ahp->key, ahp->key_len))
                 goto error;
-        ahp->icv = ah_hmac_digest;
         
         /*
          * Lookup the algorithm description maintained by xfrm_algo,
          * verify crypto transform properties, and store information
          * we need for AH processing.  This lookup cannot fail here
-         * after a successful crypto_alloc_tfm().
+         * after a successful crypto_alloc_hash().
          */
         aalg_desc = xfrm_aalg_get_byname(x->aalg->alg_name, 0);
         BUG_ON(!aalg_desc);
 
         if (aalg_desc->uinfo.auth.icv_fullbits/8 !=
-            crypto_tfm_alg_digestsize(ahp->tfm)) {
+            crypto_hash_digestsize(tfm)) {
                 printk(KERN_INFO "AH: %s digestsize %u != %hu\n",
-                       x->aalg->alg_name, crypto_tfm_alg_digestsize(ahp->tfm),
+                       x->aalg->alg_name, crypto_hash_digestsize(tfm),
                        aalg_desc->uinfo.auth.icv_fullbits/8);
                 goto error;
         }
@@ -396,7 +407,7 @@ static int ah6_init_state(struct xfrm_state *x)
 error:
         if (ahp) {
                 kfree(ahp->work_icv);
-                crypto_free_tfm(ahp->tfm);
+                crypto_free_hash(ahp->tfm);
                 kfree(ahp);
         }
         return -EINVAL;
@@ -411,7 +422,7 @@ static void ah6_destroy(struct xfrm_state *x)
 
         kfree(ahp->work_icv);
         ahp->work_icv = NULL;
-        crypto_free_tfm(ahp->tfm);
+        crypto_free_hash(ahp->tfm);
         ahp->tfm = NULL;
         kfree(ahp);
 }