Staging: rtl8187se: remove kernel version compatibility wrappers

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 21 insertions, 185 deletions

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_tkip.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_tkip.c
index de97bbe..c0a3c4b 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_tkip.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_tkip.c
@@ -23,18 +23,8 @@
 
 #include "ieee80211.h"
 
-#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");
@@ -70,13 +60,10 @@ struct ieee80211_tkip_data {
 
 	int key_idx;
 
-       #if((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21))||(IN_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;
-       #endif
-
+	struct crypto_blkcipher *rx_tfm_arc4;
+	struct crypto_hash *rx_tfm_michael;
+	struct crypto_blkcipher *tx_tfm_arc4;
+	struct crypto_hash *tx_tfm_michael;
 	struct crypto_tfm *tfm_arc4;
 	struct crypto_tfm *tfm_michael;
 
@@ -94,22 +81,6 @@ static void * ieee80211_tkip_init(int key_idx)
 	memset(priv, 0, sizeof(*priv));
 	priv->key_idx = key_idx;
 
-      #if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21))&&(!IN_OPENSUSE_SLED))
-	priv->tfm_arc4 = crypto_alloc_tfm("arc4", 0);
-	if (priv->tfm_arc4 == NULL) {
-		printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
-		       "crypto API arc4\n");
-		goto fail;
-	}
-
-	priv->tfm_michael = crypto_alloc_tfm("michael_mic", 0);
-	if (priv->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)) {
@@ -145,17 +116,11 @@ 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))&&(!IN_OPENSUSE_SLED))
-		if (priv->tfm_michael)
-			crypto_free_tfm(priv->tfm_michael);
-		if (priv->tfm_arc4)
-			crypto_free_tfm(priv->tfm_arc4);
-             #else
 		if (priv->tx_tfm_michael)
 			crypto_free_hash(priv->tx_tfm_michael);
 		if (priv->tx_tfm_arc4)
@@ -164,7 +129,6 @@ fail:
 			crypto_free_hash(priv->rx_tfm_michael);
 		if (priv->rx_tfm_arc4)
 			crypto_free_blkcipher(priv->rx_tfm_arc4);
-		#endif
 		kfree(priv);
 	}
 
@@ -175,12 +139,7 @@ fail:
 static void ieee80211_tkip_deinit(void *priv)
 {
 	struct ieee80211_tkip_data *_priv = priv;
-	#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21))&&(!IN_OPENSUSE_SLED))
-	if (_priv && _priv->tfm_michael)
-		crypto_free_tfm(_priv->tfm_michael);
-	if (_priv && _priv->tfm_arc4)
-		crypto_free_tfm(_priv->tfm_arc4);
-	#else
+
 	if (_priv) {
 		if (_priv->tx_tfm_michael)
 			crypto_free_hash(_priv->tx_tfm_michael);
@@ -191,7 +150,6 @@ static void ieee80211_tkip_deinit(void *priv)
 		if (_priv->rx_tfm_arc4)
 			crypto_free_blkcipher(_priv->rx_tfm_arc4);
 	}
-	#endif
 	kfree(priv);
 }
 
@@ -355,9 +313,7 @@ static void tkip_mixing_phase2(u8 *WEPSeed, const u8 *TK, const u16 *TTAK,
 static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 {
         struct ieee80211_tkip_data *tkey = priv;
-        #if((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21))||(IN_OPENSUSE_SLED))
         struct blkcipher_desc desc = {.tfm = tkey->tx_tfm_arc4};
-        #endif
 	int len;
 	u8  *pos;
 	struct ieee80211_hdr *hdr;
@@ -419,32 +375,14 @@ printk("%x\n", ((u32*)tkey->key)[7]);
 	*pos++ = (tkey->tx_iv32 >> 24) & 0xff;
 #ifndef JOHN_TKIP
 	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))&&(!IN_OPENSUSE_SLED))
-	crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16);
-	sg.page = virt_to_page(pos);
-	sg.offset = offset_in_page(pos);
-	sg.length = len + 4;
-	crypto_cipher_encrypt(tkey->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
 #endif
 	tkey->tx_iv16++;
 	if (tkey->tx_iv16 == 0) {
@@ -452,11 +390,7 @@ printk("%x\n", ((u32*)tkey->key)[7]);
 		tkey->tx_iv32++;
 	}
 #ifndef JOHN_TKIP
-      #if((LINUX_VERSION_CODE <KERNEL_VERSION(2,6,21))&&(!IN_OPENSUSE_SLED))
-	   return 0;
-      #else
 	   return ret;
-      #endif
 #else
 	return 0;
 #endif
@@ -464,10 +398,8 @@ printk("%x\n", ((u32*)tkey->key)[7]);
 
 static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 {
-        struct ieee80211_tkip_data *tkey = priv;
-        #if((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21)) ||(IN_OPENSUSE_SLED))
-        struct blkcipher_desc desc = {.tfm = tkey->rx_tfm_arc4};
-        #endif
+	struct ieee80211_tkip_data *tkey = priv;
+	struct blkcipher_desc desc = { .tfm = tkey->rx_tfm_arc4 };
 	u8 keyidx, *pos;
 	u32 iv32;
 	u16 iv16;
@@ -530,21 +462,8 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	tkip_mixing_phase2(rc4key, tkey->key, tkey->rx_ttak, iv16);
 
 	plen = skb->len - hdr_len - 12;
-       #if((LINUX_VERSION_CODE <KERNEL_VERSION(2,6,21))&&(!IN_OPENSUSE_SLED))
-	crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16);
-	sg.page = virt_to_page(pos);
-	sg.offset = offset_in_page(pos);
-	sg.length = plen + 4;
-	crypto_cipher_decrypt(tkey->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 "
@@ -553,13 +472,8 @@ 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;
@@ -605,52 +519,6 @@ if( ((u16*)skb->data)[0] & 0x4000){
 	return keyidx;
 }
 
-#if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!IN_OPENSUSE_SLED))
-static int michael_mic(struct ieee80211_tkip_data *tkey, 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 (tkey->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;
-
-	//crypto_digest_init(tkey->tfm_michael);
-	//crypto_digest_setkey(tkey->tfm_michael, key, 8);
-	//crypto_digest_update(tkey->tfm_michael, sg, 2);
-	//crypto_digest_final(tkey->tfm_michael, mic);
-
-	//return 0;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-	crypto_digest_init(tkey->tfm_michael);
-	crypto_digest_setkey(tkey->tfm_michael, key, 8);
-	crypto_digest_update(tkey->tfm_michael, sg, 2);
-	crypto_digest_final(tkey->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)
 {
@@ -661,18 +529,10 @@ 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;
@@ -681,9 +541,6 @@ 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)
 {
@@ -740,13 +597,9 @@ 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))&&(!IN_OPENSUSE_SLED))
-	if (michael_mic(tkey, &tkey->key[16], tkey->tx_hdr,
+
+	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
 		return -1;
 
 	return 0;
@@ -818,14 +671,11 @@ static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx,
 		tkey->rx_hdr[12] = *(skb->data + hdr_len - 2) & 0x07;
 	}
 	// }
-        #if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21))&&(!IN_OPENSUSE_SLED))
-	if (michael_mic(tkey, &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
-            	return -1;
+			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 *hdr;
 		hdr = (struct ieee80211_hdr *) skb->data;
@@ -854,29 +704,19 @@ 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))&&(!IN_OPENSUSE_SLED))
-	struct crypto_tfm *tfm = tkey->tfm_michael;
-	struct crypto_tfm *tfm2 = tkey->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))&&(!IN_OPENSUSE_SLED))
-	tkey->tfm_michael = tfm;
-	tkey->tfm_arc4 = tfm2;
-       #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);
@@ -989,11 +829,7 @@ void ieee80211_tkip_null(void)
 }
 
 #if 0
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 EXPORT_SYMBOL(ieee80211_tkip_null);
-#else
-EXPORT_SYMBOL_NOVERS(ieee80211_tkip_null);
-#endif
 #endif