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path: root/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c
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Diffstat (limited to 'drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c')
-rw-r--r--drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c292
1 files changed, 19 insertions, 273 deletions
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c
index b031b6495247..9b9438fb5f60 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c
@@ -22,33 +22,15 @@
#include <asm/string.h>
#include "ieee80211.h"
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,20))
-//#include "crypto_compat.h"
-#endif
-
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-#include "rtl_crypto.h"
-#else
#include <linux/crypto.h>
-#endif
-//#include <asm/scatterlist.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
- #include <asm/scatterlist.h>
-#else
- #include <linux/scatterlist.h>
-#endif
-
+#include <linux/scatterlist.h>
#include <linux/crc32.h>
MODULE_AUTHOR("Jouni Malinen");
MODULE_DESCRIPTION("Host AP crypt: TKIP");
MODULE_LICENSE("GPL");
-#ifndef OPENSUSE_SLED
-#define OPENSUSE_SLED 0
-#endif
-
struct ieee80211_tkip_data {
#define TKIP_KEY_LEN 32
u8 key[TKIP_KEY_LEN];
@@ -71,17 +53,12 @@ struct ieee80211_tkip_data {
u32 dot11RSNAStatsTKIPLocalMICFailures;
int key_idx;
-#if((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21)) || (OPENSUSE_SLED))
+
struct crypto_blkcipher *rx_tfm_arc4;
struct crypto_hash *rx_tfm_michael;
struct crypto_blkcipher *tx_tfm_arc4;
struct crypto_hash *tx_tfm_michael;
-#else
- struct crypto_tfm *tx_tfm_arc4;
- struct crypto_tfm *tx_tfm_michael;
- struct crypto_tfm *rx_tfm_arc4;
- struct crypto_tfm *rx_tfm_michael;
-#endif
+
/* scratch buffers for virt_to_page() (crypto API) */
u8 rx_hdr[16], tx_hdr[16];
};
@@ -95,35 +72,7 @@ static void * ieee80211_tkip_init(int key_idx)
goto fail;
memset(priv, 0, sizeof(*priv));
priv->key_idx = key_idx;
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
- priv->tx_tfm_arc4 = crypto_alloc_tfm("arc4", 0);
- if (priv->tx_tfm_arc4 == NULL) {
- printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
- "crypto API arc4\n");
- goto fail;
- }
-
- priv->tx_tfm_michael = crypto_alloc_tfm("michael_mic", 0);
- if (priv->tx_tfm_michael == NULL) {
- 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) {
- 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) {
- printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
- "crypto API michael_mic\n");
- goto fail;
- }
-#else
priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
CRYPTO_ALG_ASYNC);
if (IS_ERR(priv->tx_tfm_arc4)) {
@@ -159,22 +108,11 @@ static void * ieee80211_tkip_init(int key_idx)
priv->rx_tfm_michael = NULL;
goto fail;
}
-#endif
+
return priv;
fail:
if (priv) {
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
- if (priv->tx_tfm_michael)
- crypto_free_tfm(priv->tx_tfm_michael);
- if (priv->tx_tfm_arc4)
- crypto_free_tfm(priv->tx_tfm_arc4);
- if (priv->rx_tfm_michael)
- crypto_free_tfm(priv->rx_tfm_michael);
- if (priv->rx_tfm_arc4)
- crypto_free_tfm(priv->rx_tfm_arc4);
-
-#else
if (priv->tx_tfm_michael)
crypto_free_hash(priv->tx_tfm_michael);
if (priv->tx_tfm_arc4)
@@ -183,7 +121,6 @@ fail:
crypto_free_hash(priv->rx_tfm_michael);
if (priv->rx_tfm_arc4)
crypto_free_blkcipher(priv->rx_tfm_arc4);
-#endif
kfree(priv);
}
@@ -194,16 +131,7 @@ fail:
static void ieee80211_tkip_deinit(void *priv)
{
struct ieee80211_tkip_data *_priv = priv;
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
- if (_priv->tx_tfm_michael)
- crypto_free_tfm(_priv->tx_tfm_michael);
- if (_priv->tx_tfm_arc4)
- crypto_free_tfm(_priv->tx_tfm_arc4);
- if (_priv->rx_tfm_michael)
- crypto_free_tfm(_priv->rx_tfm_michael);
- if (_priv->rx_tfm_arc4)
- crypto_free_tfm(_priv->rx_tfm_arc4);
-#else
+
if (_priv) {
if (_priv->tx_tfm_michael)
crypto_free_hash(_priv->tx_tfm_michael);
@@ -214,7 +142,6 @@ static void ieee80211_tkip_deinit(void *priv)
if (_priv->rx_tfm_arc4)
crypto_free_blkcipher(_priv->rx_tfm_arc4);
}
-#endif
kfree(priv);
}
@@ -384,11 +311,8 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
u8 *pos;
struct ieee80211_hdr_4addr *hdr;
cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
-
- #if((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21)) || (OPENSUSE_SLED))
- struct blkcipher_desc desc = {.tfm = tkey->tx_tfm_arc4};
+ struct blkcipher_desc desc = { .tfm = tkey->tx_tfm_arc4 };
int ret = 0;
- #endif
u8 rc4key[16], *icv;
u32 crc;
struct scatterlist sg;
@@ -399,18 +323,6 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
hdr = (struct ieee80211_hdr_4addr *) skb->data;
-#if 0
-printk("@@ tkey\n");
-printk("%x|", ((u32*)tkey->key)[0]);
-printk("%x|", ((u32*)tkey->key)[1]);
-printk("%x|", ((u32*)tkey->key)[2]);
-printk("%x|", ((u32*)tkey->key)[3]);
-printk("%x|", ((u32*)tkey->key)[4]);
-printk("%x|", ((u32*)tkey->key)[5]);
-printk("%x|", ((u32*)tkey->key)[6]);
-printk("%x\n", ((u32*)tkey->key)[7]);
-#endif
-
if (!tcb_desc->bHwSec)
{
if (!tkey->tx_phase1_done) {
@@ -451,33 +363,14 @@ printk("%x\n", ((u32*)tkey->key)[7]);
if (!tcb_desc->bHwSec)
{
icv = skb_put(skb, 4);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
crc = ~crc32_le(~0, pos, len);
-#else
- crc = ~ether_crc_le(len, pos);
-#endif
icv[0] = crc;
icv[1] = crc >> 8;
icv[2] = crc >> 16;
icv[3] = crc >> 24;
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
- crypto_cipher_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);
-#else
crypto_blkcipher_setkey(tkey->tx_tfm_arc4, rc4key, 16);
-#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
- sg.page = virt_to_page(pos);
- sg.offset = offset_in_page(pos);
- sg.length = len + 4;
-#else
- sg_init_one(&sg, pos, len+4);
-#endif
+ sg_init_one(&sg, pos, len + 4);
ret= crypto_blkcipher_encrypt(&desc, &sg, &sg, len + 4);
-#endif
-
}
tkey->tx_iv16++;
@@ -487,11 +380,7 @@ printk("%x\n", ((u32*)tkey->key)[7]);
}
if (!tcb_desc->bHwSec)
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
- return 0;
- #else
return ret;
- #endif
else
return 0;
@@ -506,9 +395,7 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
u16 iv16;
struct ieee80211_hdr_4addr *hdr;
cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
- #if((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21)) || (OPENSUSE_SLED))
- struct blkcipher_desc desc = {.tfm = tkey->rx_tfm_arc4};
- #endif
+ struct blkcipher_desc desc = { .tfm = tkey->rx_tfm_arc4 };
u8 rc4key[16];
u8 icv[4];
u32 crc;
@@ -567,21 +454,9 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
plen = skb->len - hdr_len - 12;
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
- crypto_cipher_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);
-#else
crypto_blkcipher_setkey(tkey->rx_tfm_arc4, rc4key, 16);
-#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
- sg.page = virt_to_page(pos);
- sg.offset = offset_in_page(pos);
- sg.length = plen + 4;
-#else
- sg_init_one(&sg, pos, plen+4);
-#endif
+ sg_init_one(&sg, pos, plen + 4);
+
if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4)) {
if (net_ratelimit()) {
printk(KERN_DEBUG ": TKIP: failed to decrypt "
@@ -590,13 +465,8 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
}
return -7;
}
-#endif
- #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
crc = ~crc32_le(~0, pos, plen);
- #else
- crc = ~ether_crc_le(plen, pos);
- #endif
icv[0] = crc;
icv[1] = crc >> 8;
icv[2] = crc >> 16;
@@ -628,63 +498,9 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
skb_pull(skb, 8);
skb_trim(skb, skb->len - 4);
-//john's test
-#ifdef JOHN_DUMP
-if( ((u16*)skb->data)[0] & 0x4000){
- printk("@@ rx decrypted skb->data");
- int i;
- for(i=0;i<skb->len;i++){
- if( (i%24)==0 ) printk("\n");
- printk("%2x ", ((u8*)skb->data)[i]);
- }
- printk("\n");
-}
-#endif /*JOHN_DUMP*/
return keyidx;
}
-
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
-static int michael_mic(struct crypto_tfm * tfm_michael, u8 *key, u8 *hdr,
- u8 *data, size_t data_len, u8 *mic)
-{
- struct scatterlist sg[2];
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
- struct hash_desc desc;
- int ret = 0;
-#endif
-
- if (tfm_michael == NULL){
- printk(KERN_WARNING "michael_mic: tfm_michael == NULL\n");
- return -1;
- }
- sg[0].page = virt_to_page(hdr);
- sg[0].offset = offset_in_page(hdr);
- sg[0].length = 16;
-
- sg[1].page = virt_to_page(data);
- sg[1].offset = offset_in_page(data);
- sg[1].length = data_len;
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
- 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);
- return 0;
-#else
-if (crypto_hash_setkey(tkey->tfm_michael, key, 8))
- return -1;
-
-// return 0;
- desc.tfm = tkey->tfm_michael;
- desc.flags = 0;
- ret = crypto_hash_digest(&desc, sg, data_len + 16, mic);
- return ret;
-#endif
-}
-#else
static int michael_mic(struct crypto_hash *tfm_michael, u8 * key, u8 * hdr,
u8 * data, size_t data_len, u8 * mic)
{
@@ -695,19 +511,10 @@ static int michael_mic(struct crypto_hash *tfm_michael, u8 * key, u8 * hdr,
printk(KERN_WARNING "michael_mic: tfm_michael == NULL\n");
return -1;
}
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
- sg[0].page = virt_to_page(hdr);
- sg[0].offset = offset_in_page(hdr);
- sg[0].length = 16;
-
- sg[1].page = virt_to_page(data);
- sg[1].offset = offset_in_page(data);
- sg[1].length = data_len;
-#else
- sg_init_table(sg, 2);
- sg_set_buf(&sg[0], hdr, 16);
- sg_set_buf(&sg[1], data, data_len);
-#endif
+
+ sg_init_table(sg, 2);
+ sg_set_buf(&sg[0], hdr, 16);
+ sg_set_buf(&sg[1], data, data_len);
if (crypto_hash_setkey(tfm_michael, key, 8))
return -1;
@@ -716,9 +523,6 @@ static int michael_mic(struct crypto_hash *tfm_michael, u8 * key, u8 * hdr,
desc.flags = 0;
return crypto_hash_digest(&desc, sg, data_len + 16, mic);
}
-#endif
-
-
static void michael_mic_hdr(struct sk_buff *skb, u8 *hdr)
{
@@ -775,20 +579,14 @@ static int ieee80211_michael_mic_add(struct sk_buff *skb, int hdr_len, void *pri
}
// }
pos = skb_put(skb, 8);
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
- if (michael_mic(tkey->tx_tfm_michael, &tkey->key[16], tkey->tx_hdr,
- skb->data + hdr_len, skb->len - 8 - hdr_len, pos))
-#else
+
if (michael_mic(tkey->tx_tfm_michael, &tkey->key[16], tkey->tx_hdr,
- skb->data + hdr_len, skb->len - 8 - hdr_len, pos))
-#endif
+ skb->data + hdr_len, skb->len - 8 - hdr_len, pos))
return -1;
return 0;
}
-
-#if WIRELESS_EXT >= 18
static void ieee80211_michael_mic_failure(struct net_device *dev,
struct ieee80211_hdr_4addr *hdr,
int keyidx)
@@ -809,29 +607,6 @@ static void ieee80211_michael_mic_failure(struct net_device *dev,
wrqu.data.length = sizeof(ev);
wireless_send_event(dev, IWEVMICHAELMICFAILURE, &wrqu, (char *) &ev);
}
-#elif WIRELESS_EXT >= 15
-static void ieee80211_michael_mic_failure(struct net_device *dev,
- struct ieee80211_hdr_4addr *hdr,
- int keyidx)
-{
- union iwreq_data wrqu;
- char buf[128];
-
- /* TODO: needed parameters: count, keyid, key type, TSC */
- sprintf(buf, "MLME-MICHAELMICFAILURE.indication(keyid=%d %scast addr="
- MAC_FMT ")", keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni",
- MAC_ARG(hdr->addr2));
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = strlen(buf);
- wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
-}
-#else /* WIRELESS_EXT >= 15 */
-static inline void ieee80211_michael_mic_failure(struct net_device *dev,
- struct ieee80211_hdr_4addr *hdr,
- int keyidx)
-{
-}
-#endif /* WIRELESS_EXT >= 15 */
static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx,
int hdr_len, void *priv)
@@ -853,13 +628,8 @@ static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx,
}
// }
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
- if (michael_mic(tkey->rx_tfm_michael, &tkey->key[24], tkey->rx_hdr,
- skb->data + hdr_len, skb->len - 8 - hdr_len, mic))
-#else
if (michael_mic(tkey->rx_tfm_michael, &tkey->key[24], tkey->rx_hdr,
- skb->data + hdr_len, skb->len - 8 - hdr_len, mic))
-#endif
+ skb->data + hdr_len, skb->len - 8 - hdr_len, mic))
return -1;
if (memcmp(mic, skb->data + skb->len - 8, 8) != 0) {
struct ieee80211_hdr_4addr *hdr;
@@ -889,32 +659,18 @@ static int ieee80211_tkip_set_key(void *key, int len, u8 *seq, void *priv)
{
struct ieee80211_tkip_data *tkey = priv;
int keyidx;
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
- 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;
-#else
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;
-#endif
keyidx = tkey->key_idx;
memset(tkey, 0, sizeof(*tkey));
tkey->key_idx = keyidx;
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!OPENSUSE_SLED))
- tkey->tx_tfm_michael = tfm;
- tkey->tx_tfm_arc4 = tfm2;
- tkey->rx_tfm_michael = tfm3;
- tkey->rx_tfm_arc4 = tfm4;
-#else
tkey->tx_tfm_michael = tfm;
tkey->tx_tfm_arc4 = tfm2;
tkey->rx_tfm_michael = tfm3;
tkey->rx_tfm_arc4 = tfm4;
-#endif
if (len == TKIP_KEY_LEN) {
memcpy(tkey->key, key, TKIP_KEY_LEN);
@@ -1007,14 +763,12 @@ static struct ieee80211_crypto_ops ieee80211_crypt_tkip = {
.owner = THIS_MODULE,
};
-
-static int __init ieee80211_crypto_tkip_init(void)
+int __init ieee80211_crypto_tkip_init(void)
{
return ieee80211_register_crypto_ops(&ieee80211_crypt_tkip);
}
-
-static void __exit ieee80211_crypto_tkip_exit(void)
+void __exit ieee80211_crypto_tkip_exit(void)
{
ieee80211_unregister_crypto_ops(&ieee80211_crypt_tkip);
}
@@ -1024,11 +778,3 @@ void ieee80211_tkip_null(void)
// printk("============>%s()\n", __FUNCTION__);
return;
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-EXPORT_SYMBOL(ieee80211_tkip_null);
-#else
-EXPORT_SYMBOL_NOVERS(ieee80211_tkip_null);
-#endif
-
-module_init(ieee80211_crypto_tkip_init);
-module_exit(ieee80211_crypto_tkip_exit);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.