Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb

[mv-sheeva.git] / drivers / net / ppp_mppe.c

diff --git a/drivers/net/ppp_mppe.c b/drivers/net/ppp_mppe.c
index 495d8667419a9c2bb1bc4548925213bef8dadb28..d5bdd25746591a8b0bb47b2dca226b3fbca34fcf 100644 (file)
--- a/drivers/net/ppp_mppe.c
+++ b/drivers/net/ppp_mppe.c
@@ -65,12 +65,13 @@ MODULE_LICENSE("Dual BSD/GPL");
 MODULE_ALIAS("ppp-compress-" __stringify(CI_MPPE));
 MODULE_VERSION("1.0.2");
 
-static void
+static unsigned int
 setup_sg(struct scatterlist *sg, const void *address, unsigned int length)
 {
        sg[0].page = virt_to_page(address);
        sg[0].offset = offset_in_page(address);
        sg[0].length = length;
+       return length;
 }
 
 #define SHA1_PAD_SIZE 40
@@ -97,7 +98,7 @@ static inline void sha_pad_init(struct sha_pad *shapad)
  */
 struct ppp_mppe_state {
        struct crypto_blkcipher *arc4;
-       struct crypto_tfm *sha1;
+       struct crypto_hash *sha1;
        unsigned char *sha1_digest;
        unsigned char master_key[MPPE_MAX_KEY_LEN];
        unsigned char session_key[MPPE_MAX_KEY_LEN];
@@ -137,14 +138,21 @@ struct ppp_mppe_state {
  */
 static void get_new_key_from_sha(struct ppp_mppe_state * state, unsigned char *InterimKey)
 {
+       struct hash_desc desc;
        struct scatterlist sg[4];
+       unsigned int nbytes;
 
-       setup_sg(&sg[0], state->master_key, state->keylen);
-       setup_sg(&sg[1], sha_pad->sha_pad1, sizeof(sha_pad->sha_pad1));
-       setup_sg(&sg[2], state->session_key, state->keylen);
-       setup_sg(&sg[3], sha_pad->sha_pad2, sizeof(sha_pad->sha_pad2));
+       nbytes = setup_sg(&sg[0], state->master_key, state->keylen);
+       nbytes += setup_sg(&sg[1], sha_pad->sha_pad1,
+                          sizeof(sha_pad->sha_pad1));
+       nbytes += setup_sg(&sg[2], state->session_key, state->keylen);
+       nbytes += setup_sg(&sg[3], sha_pad->sha_pad2,
+                          sizeof(sha_pad->sha_pad2));
 
-       crypto_digest_digest (state->sha1, sg, 4, state->sha1_digest);
+       desc.tfm = state->sha1;
+       desc.flags = 0;
+
+       crypto_hash_digest(&desc, sg, nbytes, state->sha1_digest);
 
        memcpy(InterimKey, state->sha1_digest, state->keylen);
 }
@@ -192,7 +200,7 @@ static void *mppe_alloc(unsigned char *options, int optlen)
            || options[0] != CI_MPPE || options[1] != CILEN_MPPE)
                goto out;
 
-       state = (struct ppp_mppe_state *) kmalloc(sizeof(*state), GFP_KERNEL);
+       state = kmalloc(sizeof(*state), GFP_KERNEL);
        if (state == NULL)
                goto out;
 
@@ -204,11 +212,13 @@ static void *mppe_alloc(unsigned char *options, int optlen)
                goto out_free;
        }
 
-       state->sha1 = crypto_alloc_tfm("sha1", 0);
-       if (!state->sha1)
+       state->sha1 = crypto_alloc_hash("sha1", 0, CRYPTO_ALG_ASYNC);
+       if (IS_ERR(state->sha1)) {
+               state->sha1 = NULL;
                goto out_free;
+       }
 
-       digestsize = crypto_tfm_alg_digestsize(state->sha1);
+       digestsize = crypto_hash_digestsize(state->sha1);
        if (digestsize < MPPE_MAX_KEY_LEN)
                goto out_free;
 
@@ -233,7 +243,7 @@ static void *mppe_alloc(unsigned char *options, int optlen)
            if (state->sha1_digest)
                kfree(state->sha1_digest);
            if (state->sha1)
-               crypto_free_tfm(state->sha1);
+               crypto_free_hash(state->sha1);
            if (state->arc4)
                crypto_free_blkcipher(state->arc4);
            kfree(state);
@@ -251,7 +261,7 @@ static void mppe_free(void *arg)
            if (state->sha1_digest)
                kfree(state->sha1_digest);
            if (state->sha1)
-               crypto_free_tfm(state->sha1);
+               crypto_free_hash(state->sha1);
            if (state->arc4)
                crypto_free_blkcipher(state->arc4);
            kfree(state);
@@ -700,8 +710,8 @@ static struct compressor ppp_mppe = {
 static int __init ppp_mppe_init(void)
 {
        int answer;
-       if (!(crypto_alg_available("ecb(arc4)", 0) &&
-             crypto_alg_available("sha1", 0)))
+       if (!(crypto_has_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC) &&
+             crypto_has_hash("sha1", 0, CRYPTO_ALG_ASYNC)))
                return -ENODEV;
 
        sha_pad = kmalloc(sizeof(struct sha_pad), GFP_KERNEL);