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Merge branch 'master' into upstream

Browse Source 
Conflicts:

	net/ieee80211/ieee80211_crypt_tkip.c
	net/ieee80211/ieee80211_crypt_wep.c
This commit is contained in:
Jeff Garzik
2006-09-22 20:10:23 -04:00
parent fd8ae94eea db392219c5
commit 28eb177dfa
632 changed files with 50688 additions and 17343 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/ieee80211/ieee80211_crypt_ccmp.c
+12 -20
View File
@@ -9,6 +9,7 @@
* more details.
*/
#include <linux/err.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
@@ -48,7 +49,7 @@ struct ieee80211_ccmp_data {
int key_idx;
struct crypto_tfm *tfm;
struct crypto_cipher *tfm;
/* scratch buffers for virt_to_page() (crypto API) */
u8 tx_b0[AES_BLOCK_LEN], tx_b[AES_BLOCK_LEN],
@@ -56,20 +57,10 @@ struct ieee80211_ccmp_data {
u8 rx_b0[AES_BLOCK_LEN], rx_b[AES_BLOCK_LEN], rx_a[AES_BLOCK_LEN];
};
static void ieee80211_ccmp_aes_encrypt(struct crypto_tfm *tfm,
const u8 pt[16], u8 ct[16])
static inline void ieee80211_ccmp_aes_encrypt(struct crypto_cipher *tfm,
const u8 pt[16], u8 ct[16])
{
struct scatterlist src, dst;
src.page = virt_to_page(pt);
src.offset = offset_in_page(pt);
src.length = AES_BLOCK_LEN;
dst.page = virt_to_page(ct);
dst.offset = offset_in_page(ct);
dst.length = AES_BLOCK_LEN;
crypto_cipher_encrypt(tfm, &dst, &src, AES_BLOCK_LEN);
crypto_cipher_encrypt_one(tfm, ct, pt);
}
static void *ieee80211_ccmp_init(int key_idx)
@@ -81,10 +72,11 @@ static void *ieee80211_ccmp_init(int key_idx)
goto fail;
priv->key_idx = key_idx;
priv->tfm = crypto_alloc_tfm("aes", 0);
if (priv->tfm == NULL) {
priv->tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(priv->tfm)) {
printk(KERN_DEBUG "ieee80211_crypt_ccmp: could not allocate "
"crypto API aes\n");
priv->tfm = NULL;
goto fail;
}
@@ -93,7 +85,7 @@ static void *ieee80211_ccmp_init(int key_idx)
fail:
if (priv) {
if (priv->tfm)
crypto_free_tfm(priv->tfm);
crypto_free_cipher(priv->tfm);
kfree(priv);
}
@@ -104,7 +96,7 @@ static void ieee80211_ccmp_deinit(void *priv)
{
struct ieee80211_ccmp_data *_priv = priv;
if (_priv && _priv->tfm)
crypto_free_tfm(_priv->tfm);
crypto_free_cipher(_priv->tfm);
kfree(priv);
}
@@ -115,7 +107,7 @@ static inline void xor_block(u8 * b, u8 * a, size_t len)
b[i] ^= a[i];
}
static void ccmp_init_blocks(struct crypto_tfm *tfm,
static void ccmp_init_blocks(struct crypto_cipher *tfm,
struct ieee80211_hdr_4addr *hdr,
u8 * pn, size_t dlen, u8 * b0, u8 * auth, u8 * s0)
{
@@ -398,7 +390,7 @@ static int ieee80211_ccmp_set_key(void *key, int len, u8 * seq, void *priv)
{
struct ieee80211_ccmp_data *data = priv;
int keyidx;
struct crypto_tfm *tfm = data->tfm;
struct crypto_cipher *tfm = data->tfm;
keyidx = data->key_idx;
memset(data, 0, sizeof(*data));
net/ieee80211/ieee80211_crypt_tkip.c
+51 -49
View File
@@ -9,6 +9,7 @@
* more details.
*/
#include <linux/err.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
@@ -52,10 +53,10 @@ struct ieee80211_tkip_data {
int key_idx;
struct crypto_tfm *tx_tfm_arc4;
struct crypto_tfm *tx_tfm_michael;
struct crypto_tfm *rx_tfm_arc4;
struct crypto_tfm *rx_tfm_michael;
struct crypto_blkcipher *rx_tfm_arc4;
struct crypto_hash *rx_tfm_michael;
struct crypto_blkcipher *tx_tfm_arc4;
struct crypto_hash *tx_tfm_michael;
/* scratch buffers for virt_to_page() (crypto API) */
u8 rx_hdr[16], tx_hdr[16];
@@ -87,31 +88,37 @@ static void *ieee80211_tkip_init(int key_idx)
priv->key_idx = key_idx;
priv->tx_tfm_arc4 = crypto_alloc_tfm("arc4", 0);
if (priv->tx_tfm_arc4 == NULL) {
priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
CRYPTO_ALG_ASYNC);
if (IS_ERR(priv->tx_tfm_arc4)) {
printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
"crypto API arc4\n");
priv->tfm_arc4 = NULL;
goto fail;
}
priv->tx_tfm_michael = crypto_alloc_tfm("michael_mic", 0);
if (priv->tx_tfm_michael == NULL) {
priv->tx_tfm_michael = crypto_alloc_hash("michael_mic", 0,
CRYPTO_ALG_ASYNC);
if (IS_ERR(priv->tx_tfm_michael)) {
printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
"crypto API michael_mic\n");
goto fail;
}
priv->rx_tfm_arc4 = crypto_alloc_tfm("arc4", 0);
if (priv->rx_tfm_arc4 == NULL) {
priv->rx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
CRYPTO_ALG_ASYNC);
if (IS_ERR(priv->rx_tfm_arc4)) {
printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
"crypto API arc4\n");
goto fail;
}
priv->rx_tfm_michael = crypto_alloc_tfm("michael_mic", 0);
if (priv->rx_tfm_michael == NULL) {
priv->rx_tfm_michael = crypto_alloc_hash("michael_mic", 0,
CRYPTO_ALG_ASYNC);
if (IS_ERR(priv->rx_tfm_michael)) {
printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
"crypto API michael_mic\n");
priv->tfm_michael = NULL;
goto fail;
}
@@ -120,13 +127,13 @@ static void *ieee80211_tkip_init(int key_idx)
fail:
if (priv) {
if (priv->tx_tfm_michael)
crypto_free_tfm(priv->tx_tfm_michael);
crypto_free_hash(priv->tx_tfm_michael);
if (priv->tx_tfm_arc4)
crypto_free_tfm(priv->tx_tfm_arc4);
crypto_free_blkcipher(priv->tx_tfm_arc4);
if (priv->rx_tfm_michael)
crypto_free_tfm(priv->rx_tfm_michael);
crypto_free_hash(priv->rx_tfm_michael);
if (priv->rx_tfm_arc4)
crypto_free_tfm(priv->rx_tfm_arc4);
crypto_free_blkcipher(priv->rx_tfm_arc4);
kfree(priv);
}
@@ -138,13 +145,13 @@ static void ieee80211_tkip_deinit(void *priv)
struct ieee80211_tkip_data *_priv = priv;
if (_priv) {
if (_priv->tx_tfm_michael)
crypto_free_tfm(_priv->tx_tfm_michael);
crypto_free_hash(_priv->tx_tfm_michael);
if (_priv->tx_tfm_arc4)
crypto_free_tfm(_priv->tx_tfm_arc4);
crypto_free_blkcipher(_priv->tx_tfm_arc4);
if (_priv->rx_tfm_michael)
crypto_free_tfm(_priv->rx_tfm_michael);
crypto_free_hash(_priv->rx_tfm_michael);
if (_priv->rx_tfm_arc4)
crypto_free_tfm(_priv->rx_tfm_arc4);
crypto_free_blkcipher(_priv->rx_tfm_arc4);
}
kfree(priv);
}
@@ -344,6 +351,7 @@ static int ieee80211_tkip_hdr(struct sk_buff *skb, int hdr_len,
static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
{
struct ieee80211_tkip_data *tkey = priv;
struct blkcipher_desc desc = { .tfm = tkey->tx_tfm_arc4 };
int len;
u8 rc4key[16], *pos, *icv;
u32 crc;
@@ -377,31 +385,17 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
icv[2] = crc >> 16;
icv[3] = crc >> 24;
crypto_cipher_setkey(tkey->tx_tfm_arc4, rc4key, 16);
crypto_blkcipher_setkey(tkey->tx_tfm_arc4, rc4key, 16);
sg.page = virt_to_page(pos);
sg.offset = offset_in_page(pos);
sg.length = len + 4;
crypto_cipher_encrypt(tkey->tx_tfm_arc4, &sg, &sg, len + 4);
return 0;
}
/*
* deal with seq counter wrapping correctly.
* refer to timer_after() for jiffies wrapping handling
*/
static inline int tkip_replay_check(u32 iv32_n, u16 iv16_n,
u32 iv32_o, u16 iv16_o)
{
if ((s32)iv32_n - (s32)iv32_o < 0 ||
(iv32_n == iv32_o && iv16_n <= iv16_o))
return 1;
return 0;
return crypto_blkcipher_encrypt(&desc, &sg, &sg, len + 4);
}
static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
{
struct ieee80211_tkip_data *tkey = priv;
struct blkcipher_desc desc = { .tfm = tkey->rx_tfm_arc4 };
u8 rc4key[16];
u8 keyidx, *pos;
u32 iv32;
@@ -472,11 +466,18 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
plen = skb->len - hdr_len - 12;
crypto_cipher_setkey(tkey->rx_tfm_arc4, rc4key, 16);
crypto_blkcipher_setkey(tkey->rx_tfm_arc4, rc4key, 16);
sg.page = virt_to_page(pos);
sg.offset = offset_in_page(pos);
sg.length = plen + 4;
crypto_cipher_decrypt(tkey->rx_tfm_arc4, &sg, &sg, plen + 4);
if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4)) {
if (net_ratelimit()) {
printk(KERN_DEBUG ": TKIP: failed to decrypt "
"received packet from " MAC_FMT "\n",
MAC_ARG(hdr->addr2));
}
return -7;
}
crc = ~crc32_le(~0, pos, plen);
icv[0] = crc;
@@ -510,9 +511,10 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
return keyidx;
}
static int michael_mic(struct crypto_tfm *tfm_michael, u8 * key, u8 * hdr,
static int michael_mic(struct crypto_hash *tfm_michael, u8 * key, u8 * hdr,
u8 * data, size_t data_len, u8 * mic)
{
struct hash_desc desc;
struct scatterlist sg[2];
if (tfm_michael == NULL) {
@@ -527,12 +529,12 @@ static int michael_mic(struct crypto_tfm *tfm_michael, u8 * key, u8 * hdr,
sg[1].offset = offset_in_page(data);
sg[1].length = data_len;
crypto_digest_init(tfm_michael);
crypto_digest_setkey(tfm_michael, key, 8);
crypto_digest_update(tfm_michael, sg, 2);
crypto_digest_final(tfm_michael, mic);
if (crypto_hash_setkey(tfm_michael, key, 8))
return -1;
return 0;
desc.tfm = tfm_michael;
desc.flags = 0;
return crypto_hash_digest(&desc, sg, data_len + 16, mic);
}
static void michael_mic_hdr(struct sk_buff *skb, u8 * hdr)
@@ -656,10 +658,10 @@ static int ieee80211_tkip_set_key(void *key, int len, u8 * seq, void *priv)
{
struct ieee80211_tkip_data *tkey = priv;
int keyidx;
struct crypto_tfm *tfm = tkey->tx_tfm_michael;
struct crypto_tfm *tfm2 = tkey->tx_tfm_arc4;
struct crypto_tfm *tfm3 = tkey->rx_tfm_michael;
struct crypto_tfm *tfm4 = tkey->rx_tfm_arc4;
struct crypto_hash *tfm = tkey->tx_tfm_michael;
struct crypto_blkcipher *tfm2 = tkey->tx_tfm_arc4;
struct crypto_hash *tfm3 = tkey->rx_tfm_michael;
struct crypto_blkcipher *tfm4 = tkey->rx_tfm_arc4;
keyidx = tkey->key_idx;
memset(tkey, 0, sizeof(*tkey));
net/ieee80211/ieee80211_crypt_wep.c
+19 -16
View File
@@ -9,6 +9,7 @@
* more details.
*/
#include <linux/err.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
@@ -32,8 +33,8 @@ struct prism2_wep_data {
u8 key[WEP_KEY_LEN + 1];
u8 key_len;
u8 key_idx;
struct crypto_tfm *tx_tfm;
struct crypto_tfm *rx_tfm;
struct crypto_blkcipher *tx_tfm;
struct crypto_blkcipher *rx_tfm;
};
static void *prism2_wep_init(int keyidx)
@@ -45,15 +46,16 @@ static void *prism2_wep_init(int keyidx)
goto fail;
priv->key_idx = keyidx;
priv->tx_tfm = crypto_alloc_tfm("arc4", 0);
if (priv->tx_tfm == NULL) {
priv->tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(priv->tx_tfm)) {
printk(KERN_DEBUG "ieee80211_crypt_wep: could not allocate "
"crypto API arc4\n");
priv->tfm = NULL;
goto fail;
}
priv->rx_tfm = crypto_alloc_tfm("arc4", 0);
if (priv->rx_tfm == NULL) {
priv->rx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(priv->rx_tfm)) {
printk(KERN_DEBUG "ieee80211_crypt_wep: could not allocate "
"crypto API arc4\n");
goto fail;
@@ -66,9 +68,9 @@ static void *prism2_wep_init(int keyidx)
fail:
if (priv) {
if (priv->tx_tfm)
crypto_free_tfm(priv->tx_tfm);
crypto_free_blkcipher(priv->tx_tfm);
if (priv->rx_tfm)
crypto_free_tfm(priv->rx_tfm);
crypto_free_blkcipher(priv->rx_tfm);
kfree(priv);
}
return NULL;
@@ -79,9 +81,9 @@ static void prism2_wep_deinit(void *priv)
struct prism2_wep_data *_priv = priv;
if (_priv) {
if (_priv->tx_tfm)
crypto_free_tfm(_priv->tx_tfm);
crypto_free_blkcipher(_priv->tx_tfm);
if (_priv->rx_tfm)
crypto_free_tfm(_priv->rx_tfm);
crypto_free_blkcipher(_priv->rx_tfm);
}
kfree(priv);
}
@@ -133,6 +135,7 @@ static int prism2_wep_build_iv(struct sk_buff *skb, int hdr_len,
static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
{
struct prism2_wep_data *wep = priv;
struct blkcipher_desc desc = { .tfm = wep->tx_tfm };
u32 crc, klen, len;
u8 *pos, *icv;
struct scatterlist sg;
@@ -164,13 +167,11 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
icv[2] = crc >> 16;
icv[3] = crc >> 24;
crypto_cipher_setkey(wep->tx_tfm, key, klen);
crypto_blkcipher_setkey(wep->tx_tfm, key, klen);
sg.page = virt_to_page(pos);
sg.offset = offset_in_page(pos);
sg.length = len + 4;
crypto_cipher_encrypt(wep->tx_tfm, &sg, &sg, len + 4);
return 0;
return crypto_blkcipher_encrypt(&desc, &sg, &sg, len + 4);
}
/* Perform WEP decryption on given buffer. Buffer includes whole WEP part of
@@ -183,6 +184,7 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
{
struct prism2_wep_data *wep = priv;
struct blkcipher_desc desc = { .tfm = wep->rx_tfm };
u32 crc, klen, plen;
u8 key[WEP_KEY_LEN + 3];
u8 keyidx, *pos, icv[4];
@@ -207,11 +209,12 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
/* Apply RC4 to data and compute CRC32 over decrypted data */
plen = skb->len - hdr_len - 8;
crypto_cipher_setkey(wep->rx_tfm, key, klen);
crypto_blkcipher_setkey(wep->rx_tfm, key, klen);
sg.page = virt_to_page(pos);
sg.offset = offset_in_page(pos);
sg.length = plen + 4;
crypto_cipher_decrypt(wep->rx_tfm, &sg, &sg, plen + 4);
if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4))
return -7;
crc = ~crc32_le(~0, pos, plen);
icv[0] = crc;