28 int ieee80211_wep_init(struct ieee80211_local *local)  in ieee80211_wep_init()  argument
31 	get_random_bytes(&local->wep_iv, IEEE80211_WEP_IV_LEN);  in ieee80211_wep_init()
33 	local->wep_tx_tfm = crypto_alloc_cipher("arc4", 0, CRYPTO_ALG_ASYNC);  in ieee80211_wep_init()
34 	if (IS_ERR(local->wep_tx_tfm)) {  in ieee80211_wep_init()
35 		local->wep_rx_tfm = ERR_PTR(-EINVAL);  in ieee80211_wep_init()
36 		return PTR_ERR(local->wep_tx_tfm);  in ieee80211_wep_init()
39 	local->wep_rx_tfm = crypto_alloc_cipher("arc4", 0, CRYPTO_ALG_ASYNC);  in ieee80211_wep_init()
40 	if (IS_ERR(local->wep_rx_tfm)) {  in ieee80211_wep_init()
41 		crypto_free_cipher(local->wep_tx_tfm);  in ieee80211_wep_init()
42 		local->wep_tx_tfm = ERR_PTR(-EINVAL);  in ieee80211_wep_init()
43 		return PTR_ERR(local->wep_rx_tfm);  in ieee80211_wep_init()
49 void ieee80211_wep_free(struct ieee80211_local *local)  in ieee80211_wep_free()  argument
51 	if (!IS_ERR(local->wep_tx_tfm))  in ieee80211_wep_free()
52 		crypto_free_cipher(local->wep_tx_tfm);  in ieee80211_wep_free()
53 	if (!IS_ERR(local->wep_rx_tfm))  in ieee80211_wep_free()
54 		crypto_free_cipher(local->wep_rx_tfm);  in ieee80211_wep_free()
73 static void ieee80211_wep_get_iv(struct ieee80211_local *local,  in ieee80211_wep_get_iv()  argument
76 	local->wep_iv++;  in ieee80211_wep_get_iv()
77 	if (ieee80211_wep_weak_iv(local->wep_iv, keylen))  in ieee80211_wep_get_iv()
78 		local->wep_iv += 0x0100;  in ieee80211_wep_get_iv()
83 	*iv++ = (local->wep_iv >> 16) & 0xff;  in ieee80211_wep_get_iv()
84 	*iv++ = (local->wep_iv >> 8) & 0xff;  in ieee80211_wep_get_iv()
85 	*iv++ = local->wep_iv & 0xff;  in ieee80211_wep_get_iv()
90 static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local,  in ieee80211_wep_add_iv()  argument
113 	ieee80211_wep_get_iv(local, keylen, keyidx, newhdr + hdrlen);  in ieee80211_wep_add_iv()
118 static void ieee80211_wep_remove_iv(struct ieee80211_local *local,  in ieee80211_wep_remove_iv()  argument
161 int ieee80211_wep_encrypt(struct ieee80211_local *local,  in ieee80211_wep_encrypt()  argument
172 	iv = ieee80211_wep_add_iv(local, skb, keylen, keyidx);  in ieee80211_wep_encrypt()
187 	return ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, keylen + 3,  in ieee80211_wep_encrypt()
225 static int ieee80211_wep_decrypt(struct ieee80211_local *local,  in ieee80211_wep_decrypt()  argument
259 	if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen,  in ieee80211_wep_decrypt()
288 		if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key))  in ieee80211_crypto_wep_decrypt()
294 		ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key);  in ieee80211_crypto_wep_decrypt()
309 		if (ieee80211_wep_encrypt(tx->local, skb, tx->key->conf.key,  in wep_encrypt_skb()
315 		if (!ieee80211_wep_add_iv(tx->local, skb,  in wep_encrypt_skb()
333 			I802_DEBUG_INC(tx->local->tx_handlers_drop_wep);  in ieee80211_crypto_wep_encrypt()