diff options
Diffstat (limited to 'drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_ccmp.c')
| -rw-r--r-- | drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_ccmp.c | 88 |
1 files changed, 12 insertions, 76 deletions
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_ccmp.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_ccmp.c index 08add385790f..172e8f3ae6c1 100644 --- a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_ccmp.c +++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_ccmp.c @@ -24,28 +24,13 @@ #include "ieee80211.h" -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) -#include "rtl_crypto.h" -#else #include <linux/crypto.h> -#endif -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20) - #include <asm/scatterlist.h> -#else - #include <linux/scatterlist.h> -#endif - -//#include <asm/scatterlist.h> +#include <linux/scatterlist.h> MODULE_AUTHOR("Jouni Malinen"); MODULE_DESCRIPTION("Host AP crypt: CCMP"); MODULE_LICENSE("GPL"); -#ifdef OPENSUSE_SLED -#ifndef IN_OPENSUSE_SLED -#define IN_OPENSUSE_SLED 1 -#endif -#endif #define AES_BLOCK_LEN 16 #define CCMP_HDR_LEN 8 @@ -77,21 +62,7 @@ struct ieee80211_ccmp_data { void ieee80211_ccmp_aes_encrypt(struct crypto_tfm *tfm, const u8 pt[16], u8 ct[16]) { - #if((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21))||(IN_OPENSUSE_SLED)) crypto_cipher_encrypt_one((void *)tfm, ct, pt); - #else - 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); - #endif } static void * ieee80211_ccmp_init(int key_idx) @@ -104,33 +75,20 @@ static void * ieee80211_ccmp_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 = crypto_alloc_tfm("aes", 0); - if (priv->tfm == NULL) { - printk(KERN_DEBUG "ieee80211_crypt_ccmp: could not allocate " - "crypto API aes\n"); - goto fail; - } - #else - priv->tfm = (void *)crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC); + priv->tfm = (void *)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; } - #endif + return priv; fail: if (priv) { if (priv->tfm) - //#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) - #if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!IN_OPENSUSE_SLED)) - crypto_free_tfm(priv->tfm); - #else crypto_free_cipher((void *)priv->tfm); - #endif kfree(priv); } @@ -141,13 +99,9 @@ fail: static void ieee80211_ccmp_deinit(void *priv) { struct ieee80211_ccmp_data *_priv = priv; + if (_priv && _priv->tfm) - //#if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) - #if((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)) && (!IN_OPENSUSE_SLED)) - crypto_free_tfm(_priv->tfm); - #else crypto_free_cipher((void *)_priv->tfm); - #endif kfree(priv); } @@ -159,9 +113,8 @@ static inline void xor_block(u8 *b, u8 *a, size_t len) b[i] ^= a[i]; } -#ifndef JOHN_CCMP static void ccmp_init_blocks(struct crypto_tfm *tfm, - struct ieee80211_hdr *hdr, + struct ieee80211_hdr_4addr *hdr, u8 *pn, size_t dlen, u8 *b0, u8 *auth, u8 *s0) { @@ -237,22 +190,20 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm, b0[14] = b0[15] = 0; ieee80211_ccmp_aes_encrypt(tfm, b0, s0); } -#endif static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) { struct ieee80211_ccmp_data *key = priv; int data_len, i; u8 *pos; - struct ieee80211_hdr *hdr; -#ifndef JOHN_CCMP + struct ieee80211_hdr_4addr *hdr; int blocks, last, len; u8 *mic; u8 *b0 = key->tx_b0; u8 *b = key->tx_b; u8 *e = key->tx_e; u8 *s0 = key->tx_s0; -#endif + if (skb_headroom(skb) < CCMP_HDR_LEN || skb_tailroom(skb) < CCMP_MIC_LEN || skb->len < hdr_len) @@ -281,8 +232,7 @@ static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) *pos++ = key->tx_pn[1]; *pos++ = key->tx_pn[0]; - hdr = (struct ieee80211_hdr *) skb->data; -#ifndef JOHN_CCMP + hdr = (struct ieee80211_hdr_4addr *)skb->data; //mic is moved to here by john mic = skb_put(skb, CCMP_MIC_LEN); @@ -306,7 +256,7 @@ static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) for (i = 0; i < CCMP_MIC_LEN; i++) mic[i] = b[i] ^ s0[i]; -#endif + return 0; } @@ -315,22 +265,21 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) { struct ieee80211_ccmp_data *key = priv; u8 keyidx, *pos; - struct ieee80211_hdr *hdr; + struct ieee80211_hdr_4addr *hdr; u8 pn[6]; -#ifndef JOHN_CCMP size_t data_len = skb->len - hdr_len - CCMP_HDR_LEN - CCMP_MIC_LEN; u8 *mic = skb->data + skb->len - CCMP_MIC_LEN; u8 *b0 = key->rx_b0; u8 *b = key->rx_b; u8 *a = key->rx_a; int i, blocks, last, len; -#endif + if (skb->len < hdr_len + CCMP_HDR_LEN + CCMP_MIC_LEN) { key->dot11RSNAStatsCCMPFormatErrors++; return -1; } - hdr = (struct ieee80211_hdr *) skb->data; + hdr = (struct ieee80211_hdr_4addr *)skb->data; pos = skb->data + hdr_len; keyidx = pos[3]; if (!(keyidx & (1 << 5))) { @@ -376,7 +325,6 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) return -4; } -#ifndef JOHN_CCMP ccmp_init_blocks(key->tfm, hdr, pn, data_len, b0, a, b); xor_block(mic, b, CCMP_MIC_LEN); @@ -407,7 +355,6 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) memcpy(key->rx_pn, pn, CCMP_PN_LEN); -#endif /* Remove hdr and MIC */ memmove(skb->data + CCMP_HDR_LEN, skb->data, hdr_len); skb_pull(skb, CCMP_HDR_LEN); @@ -520,14 +467,3 @@ void ieee80211_crypto_ccmp_exit(void) { ieee80211_unregister_crypto_ops(&ieee80211_crypt_ccmp); } - -#if 0 -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -EXPORT_SYMBOL(ieee80211_ccmp_null); -#else -EXPORT_SYMBOL_NOVERS(ieee80211_ccmp_null); -#endif -#endif - -//module_init(ieee80211_crypto_ccmp_init); -//module_exit(ieee80211_crypto_ccmp_exit); |