1 files changed, 21 insertions, 15 deletions

diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 7c63ae494742..b428489f6ccd 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -121,9 +121,9 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
         }
 
         if (esp->auth.icv_full_len) {
-                esp->auth.icv(esp, skb, (u8*)esph-skb->data,
-                              sizeof(struct ip_esp_hdr) + esp->conf.ivlen+clen, trailer->tail);
-                pskb_put(skb, trailer, alen);
+                err = esp_mac_digest(esp, skb, (u8 *)esph - skb->data,
+                                     sizeof(*esph) + esp->conf.ivlen + clen);
+                memcpy(pskb_put(skb, trailer, alen), esp->auth.work_icv, alen);
         }
 
         ip_send_check(top_iph);
@@ -163,15 +163,16 @@ static int esp_input(struct xfrm_state *x, struct sk_buff *skb)
 
         /* If integrity check is required, do this. */
         if (esp->auth.icv_full_len) {
-                u8 sum[esp->auth.icv_full_len];
-                u8 sum1[alen];
-                
-                esp->auth.icv(esp, skb, 0, skb->len-alen, sum);
+                u8 sum[alen];
 
-                if (skb_copy_bits(skb, skb->len-alen, sum1, alen))
+                err = esp_mac_digest(esp, skb, 0, skb->len - alen);
+                if (err)
+                        goto out;
+
+                if (skb_copy_bits(skb, skb->len - alen, sum, alen))
                         BUG();
 
-                if (unlikely(memcmp(sum, sum1, alen))) {
+                if (unlikely(memcmp(esp->auth.work_icv, sum, alen))) {
                         x->stats.integrity_failed++;
                         goto out;
                 }
@@ -307,7 +308,7 @@ static void esp_destroy(struct xfrm_state *x)
         esp->conf.tfm = NULL;
         kfree(esp->conf.ivec);
         esp->conf.ivec = NULL;
-        crypto_free_tfm(esp->auth.tfm);
+        crypto_free_hash(esp->auth.tfm);
         esp->auth.tfm = NULL;
         kfree(esp->auth.work_icv);
         esp->auth.work_icv = NULL;
@@ -333,22 +334,27 @@ static int esp_init_state(struct xfrm_state *x)
 
         if (x->aalg) {
                 struct xfrm_algo_desc *aalg_desc;
+                struct crypto_hash *hash;
 
                 esp->auth.key = x->aalg->alg_key;
                 esp->auth.key_len = (x->aalg->alg_key_len+7)/8;
-                esp->auth.tfm = crypto_alloc_tfm(x->aalg->alg_name, 0);
-                if (esp->auth.tfm == NULL)
+                hash = crypto_alloc_hash(x->aalg->alg_name, 0,
+                                         CRYPTO_ALG_ASYNC);
+                if (IS_ERR(hash))
+                        goto error;
+
+                esp->auth.tfm = hash;
+                if (crypto_hash_setkey(hash, esp->auth.key, esp->auth.key_len))
                         goto error;
-                esp->auth.icv = esp_hmac_digest;
 
                 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(esp->auth.tfm)) {
+                    crypto_hash_digestsize(hash)) {
                         NETDEBUG(KERN_INFO "ESP: %s digestsize %u != %hu\n",
                                  x->aalg->alg_name,
-                                 crypto_tfm_alg_digestsize(esp->auth.tfm),
+                                 crypto_hash_digestsize(hash),
                                  aalg_desc->uinfo.auth.icv_fullbits/8);
                         goto error;
                 }