ath9k: Add open loop power control support for AR9287.

[pandora-kernel.git] / drivers / net / ppp_mppe.c

diff --git a/drivers/net/ppp_mppe.c b/drivers/net/ppp_mppe.c
index f79cf87..88f03c9 100644 (file)
--- a/drivers/net/ppp_mppe.c
+++ b/drivers/net/ppp_mppe.c
@@ -46,7 +46,6 @@
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/version.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/slab.h>
@@ -55,7 +54,7 @@
 #include <linux/mm.h>
 #include <linux/ppp_defs.h>
 #include <linux/ppp-comp.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 
 #include "ppp_mppe.h"
 
@@ -68,9 +67,7 @@ MODULE_VERSION("1.0.2");
 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;
+       sg_set_buf(sg, address, length);
        return length;
 }
 
@@ -136,12 +133,14 @@ struct ppp_mppe_state {
  * Key Derivation, from RFC 3078, RFC 3079.
  * Equivalent to Get_Key() for MS-CHAP as described in RFC 3079.
  */
-static void get_new_key_from_sha(struct ppp_mppe_state * state, unsigned char *InterimKey)
+static void get_new_key_from_sha(struct ppp_mppe_state * state)
 {
        struct hash_desc desc;
        struct scatterlist sg[4];
        unsigned int nbytes;
 
+       sg_init_table(sg, 4);
+
        nbytes = setup_sg(&sg[0], state->master_key, state->keylen);
        nbytes += setup_sg(&sg[1], sha_pad->sha_pad1,
                           sizeof(sha_pad->sha_pad1));
@@ -153,8 +152,6 @@ static void get_new_key_from_sha(struct ppp_mppe_state * state, unsigned char *I
        desc.flags = 0;
 
        crypto_hash_digest(&desc, sg, nbytes, state->sha1_digest);
-
-       memcpy(InterimKey, state->sha1_digest, state->keylen);
 }
 
 /*
@@ -163,21 +160,23 @@ static void get_new_key_from_sha(struct ppp_mppe_state * state, unsigned char *I
  */
 static void mppe_rekey(struct ppp_mppe_state * state, int initial_key)
 {
-       unsigned char InterimKey[MPPE_MAX_KEY_LEN];
        struct scatterlist sg_in[1], sg_out[1];
        struct blkcipher_desc desc = { .tfm = state->arc4 };
 
-       get_new_key_from_sha(state, InterimKey);
+       get_new_key_from_sha(state);
        if (!initial_key) {
-               crypto_blkcipher_setkey(state->arc4, InterimKey, state->keylen);
-               setup_sg(sg_in, InterimKey, state->keylen);
+               crypto_blkcipher_setkey(state->arc4, state->sha1_digest,
+                                       state->keylen);
+               sg_init_table(sg_in, 1);
+               sg_init_table(sg_out, 1);
+               setup_sg(sg_in, state->sha1_digest, state->keylen);
                setup_sg(sg_out, state->session_key, state->keylen);
                if (crypto_blkcipher_encrypt(&desc, sg_out, sg_in,
                                             state->keylen) != 0) {
                    printk(KERN_WARNING "mppe_rekey: cipher_encrypt failed\n");
                }
        } else {
-               memcpy(state->session_key, InterimKey, state->keylen);
+               memcpy(state->session_key, state->sha1_digest, state->keylen);
        }
        if (state->keylen == 8) {
                /* See RFC 3078 */
@@ -425,6 +424,8 @@ mppe_compress(void *arg, unsigned char *ibuf, unsigned char *obuf,
        isize -= 2;
 
        /* Encrypt packet */
+       sg_init_table(sg_in, 1);
+       sg_init_table(sg_out, 1);
        setup_sg(sg_in, ibuf, isize);
        setup_sg(sg_out, obuf, osize);
        if (crypto_blkcipher_encrypt(&desc, sg_out, sg_in, isize) != 0) {
@@ -612,6 +613,8 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf,
         * Decrypt the first byte in order to check if it is
         * a compressed or uncompressed protocol field.
         */
+       sg_init_table(sg_in, 1);
+       sg_init_table(sg_out, 1);
        setup_sg(sg_in, ibuf, 1);
        setup_sg(sg_out, obuf, 1);
        if (crypto_blkcipher_decrypt(&desc, sg_out, sg_in, 1) != 0) {