[SUNRPC] GSS: Use block ciphers where applicable

This patch converts SUNRPC/GSS to use the new block cipher type where
applicable.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 32 insertions, 25 deletions

diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c
index 76b969e6904..57192dfe306 100644
--- a/net/sunrpc/auth_gss/gss_krb5_crypto.c
+++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c
@@ -49,7 +49,7 @@
 
 u32
 krb5_encrypt(
-	struct crypto_tfm *tfm,
+	struct crypto_blkcipher *tfm,
 	void * iv,
 	void * in,
 	void * out,
@@ -58,26 +58,27 @@ krb5_encrypt(
 	u32 ret = -EINVAL;
         struct scatterlist sg[1];
 	u8 local_iv[16] = {0};
+	struct blkcipher_desc desc = { .tfm = tfm, .info = local_iv };
 
 	dprintk("RPC:      krb5_encrypt: input data:\n");
 	print_hexl((u32 *)in, length, 0);
 
-	if (length % crypto_tfm_alg_blocksize(tfm) != 0)
+	if (length % crypto_blkcipher_blocksize(tfm) != 0)
 		goto out;
 
-	if (crypto_tfm_alg_ivsize(tfm) > 16) {
+	if (crypto_blkcipher_ivsize(tfm) > 16) {
 		dprintk("RPC:      gss_k5encrypt: tfm iv size to large %d\n",
-		         crypto_tfm_alg_ivsize(tfm));
+		         crypto_blkcipher_ivsize(tfm));
 		goto out;
 	}
 
 	if (iv)
-		memcpy(local_iv, iv, crypto_tfm_alg_ivsize(tfm));
+		memcpy(local_iv, iv, crypto_blkcipher_ivsize(tfm));
 
 	memcpy(out, in, length);
 	sg_set_buf(sg, out, length);
 
-	ret = crypto_cipher_encrypt_iv(tfm, sg, sg, length, local_iv);
+	ret = crypto_blkcipher_encrypt_iv(&desc, sg, sg, length);
 
 	dprintk("RPC:      krb5_encrypt: output data:\n");
 	print_hexl((u32 *)out, length, 0);
@@ -90,7 +91,7 @@ EXPORT_SYMBOL(krb5_encrypt);
 
 u32
 krb5_decrypt(
-     struct crypto_tfm *tfm,
+     struct crypto_blkcipher *tfm,
      void * iv,
      void * in,
      void * out,
@@ -99,25 +100,26 @@ krb5_decrypt(
 	u32 ret = -EINVAL;
 	struct scatterlist sg[1];
 	u8 local_iv[16] = {0};
+	struct blkcipher_desc desc = { .tfm = tfm, .info = local_iv };
 
 	dprintk("RPC:      krb5_decrypt: input data:\n");
 	print_hexl((u32 *)in, length, 0);
 
-	if (length % crypto_tfm_alg_blocksize(tfm) != 0)
+	if (length % crypto_blkcipher_blocksize(tfm) != 0)
 		goto out;
 
-	if (crypto_tfm_alg_ivsize(tfm) > 16) {
+	if (crypto_blkcipher_ivsize(tfm) > 16) {
 		dprintk("RPC:      gss_k5decrypt: tfm iv size to large %d\n",
-			crypto_tfm_alg_ivsize(tfm));
+			crypto_blkcipher_ivsize(tfm));
 		goto out;
 	}
 	if (iv)
-		memcpy(local_iv,iv, crypto_tfm_alg_ivsize(tfm));
+		memcpy(local_iv,iv, crypto_blkcipher_ivsize(tfm));
 
 	memcpy(out, in, length);
 	sg_set_buf(sg, out, length);
 
-	ret = crypto_cipher_decrypt_iv(tfm, sg, sg, length, local_iv);
+	ret = crypto_blkcipher_decrypt_iv(&desc, sg, sg, length);
 
 	dprintk("RPC:      krb5_decrypt: output_data:\n");
 	print_hexl((u32 *)out, length, 0);
@@ -240,7 +242,7 @@ EXPORT_SYMBOL(make_checksum);
 
 struct encryptor_desc {
 	u8 iv[8]; /* XXX hard-coded blocksize */
-	struct crypto_tfm *tfm;
+	struct blkcipher_desc desc;
 	int pos;
 	struct xdr_buf *outbuf;
 	struct page **pages;
@@ -285,8 +287,8 @@ encryptor(struct scatterlist *sg, void *data)
 	if (thislen == 0)
 		return 0;
 
-	ret = crypto_cipher_encrypt_iv(desc->tfm, desc->outfrags, desc->infrags,
-					thislen, desc->iv);
+	ret = crypto_blkcipher_encrypt_iv(&desc->desc, desc->outfrags,
+					  desc->infrags, thislen);
 	if (ret)
 		return ret;
 	if (fraglen) {
@@ -305,16 +307,18 @@ encryptor(struct scatterlist *sg, void *data)
 }
 
 int
-gss_encrypt_xdr_buf(struct crypto_tfm *tfm, struct xdr_buf *buf, int offset,
-		struct page **pages)
+gss_encrypt_xdr_buf(struct crypto_blkcipher *tfm, struct xdr_buf *buf,
+		    int offset, struct page **pages)
 {
 	int ret;
 	struct encryptor_desc desc;
 
-	BUG_ON((buf->len - offset) % crypto_tfm_alg_blocksize(tfm) != 0);
+	BUG_ON((buf->len - offset) % crypto_blkcipher_blocksize(tfm) != 0);
 
 	memset(desc.iv, 0, sizeof(desc.iv));
-	desc.tfm = tfm;
+	desc.desc.tfm = tfm;
+	desc.desc.info = desc.iv;
+	desc.desc.flags = 0;
 	desc.pos = offset;
 	desc.outbuf = buf;
 	desc.pages = pages;
@@ -329,7 +333,7 @@ EXPORT_SYMBOL(gss_encrypt_xdr_buf);
 
 struct decryptor_desc {
 	u8 iv[8]; /* XXX hard-coded blocksize */
-	struct crypto_tfm *tfm;
+	struct blkcipher_desc desc;
 	struct scatterlist frags[4];
 	int fragno;
 	int fraglen;
@@ -355,8 +359,8 @@ decryptor(struct scatterlist *sg, void *data)
 	if (thislen == 0)
 		return 0;
 
-	ret = crypto_cipher_decrypt_iv(desc->tfm, desc->frags, desc->frags,
-					thislen, desc->iv);
+	ret = crypto_blkcipher_decrypt_iv(&desc->desc, desc->frags,
+					  desc->frags, thislen);
 	if (ret)
 		return ret;
 	if (fraglen) {
@@ -373,15 +377,18 @@ decryptor(struct scatterlist *sg, void *data)
 }
 
 int
-gss_decrypt_xdr_buf(struct crypto_tfm *tfm, struct xdr_buf *buf, int offset)
+gss_decrypt_xdr_buf(struct crypto_blkcipher *tfm, struct xdr_buf *buf,
+		    int offset)
 {
 	struct decryptor_desc desc;
 
 	/* XXXJBF: */
-	BUG_ON((buf->len - offset) % crypto_tfm_alg_blocksize(tfm) != 0);
+	BUG_ON((buf->len - offset) % crypto_blkcipher_blocksize(tfm) != 0);
 
 	memset(desc.iv, 0, sizeof(desc.iv));
-	desc.tfm = tfm;
+	desc.desc.tfm = tfm;
+	desc.desc.info = desc.iv;
+	desc.desc.flags = 0;
 	desc.fragno = 0;
 	desc.fraglen = 0;
 	return process_xdr_buf(buf, offset, buf->len - offset, decryptor, &desc);