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-rw-r--r--package/mac80211/patches/300-rt2x00_hw_encryption.patch248
1 files changed, 0 insertions, 248 deletions
diff --git a/package/mac80211/patches/300-rt2x00_hw_encryption.patch b/package/mac80211/patches/300-rt2x00_hw_encryption.patch
deleted file mode 100644
index 51cb3264ac..0000000000
--- a/package/mac80211/patches/300-rt2x00_hw_encryption.patch
+++ /dev/null
@@ -1,248 +0,0 @@
-From: Ivo van Doorn <IvDoorn@gmail.com>
-Date: Thu, 20 Nov 2008 22:29:36 +0000 (+0100)
-Subject: rt2x00: Implement HW encryption (rt2500usb)
-X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Fivd%2Frt2x00.git;a=commitdiff_plain;h=52fe465ab5eb6aeead5ac8d91dd70e363d0560b7
-
-rt2x00: Implement HW encryption (rt2500usb)
-
-rt2500usb supports hardware encryption.
-rt2500usb supports up to 4 shared and pairwise keys.
-
-Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
----
-
-diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
-index 10cb46a..620ac65 100644
---- a/drivers/net/wireless/rt2x00/rt2500usb.c
-+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
-@@ -36,6 +36,13 @@
- #include "rt2500usb.h"
-
- /*
-+ * Allow hardware encryption to be disabled.
-+ */
-+static int modparam_nohwcrypt = 0;
-+module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
-+MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
-+
-+/*
- * Register access.
- * All access to the CSR registers will go through the methods
- * rt2500usb_register_read and rt2500usb_register_write.
-@@ -323,6 +330,85 @@ static void rt2500usb_init_led(struct rt2x00_dev *rt2x00dev,
- /*
- * Configuration handlers.
- */
-+
-+/*
-+ * rt2500usb does not differentiate between shared and pairwise
-+ * keys, so we should use the same function for both key types.
-+ */
-+static int rt2500usb_config_key(struct rt2x00_dev *rt2x00dev,
-+ struct rt2x00lib_crypto *crypto,
-+ struct ieee80211_key_conf *key)
-+{
-+ int timeout;
-+ u32 mask;
-+ u16 reg;
-+
-+ /* Support up to 4 keys */
-+ if (key->hw_key_idx >= 4)
-+ return -ENOSPC;
-+
-+ if (crypto->cmd == SET_KEY) {
-+ /*
-+ * Pairwise key will always be entry 0, but this
-+ * could collide with a shared key on the same
-+ * position...
-+ */
-+ mask = TXRX_CSR0_KEY_ID.bit_mask;
-+
-+ rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
-+
-+ if ((reg & mask) && (reg & mask) == mask)
-+ return -ENOSPC;
-+
-+ reg = rt2x00_get_field16(reg, TXRX_CSR0_KEY_ID);
-+
-+ key->hw_key_idx += reg ? ffz(reg) : 0;
-+
-+ /*
-+ * The encryption key doesn't fit within the CSR cache,
-+ * this means we should allocate it seperately and use
-+ * rt2x00usb_vendor_request() to send the key to the hardware.
-+ */
-+ reg = KEY_ENTRY(key->hw_key_idx);
-+ timeout = REGISTER_TIMEOUT32(sizeof(crypto->key));
-+ rt2x00usb_vendor_request_large_buff(rt2x00dev, USB_MULTI_WRITE,
-+ USB_VENDOR_REQUEST_OUT, reg,
-+ crypto->key,
-+ sizeof(crypto->key),
-+ timeout);
-+
-+ /*
-+ * The driver does not support the IV/EIV generation
-+ * in hardware. However it doesn't support the IV/EIV
-+ * inside the ieee80211 frame either, but requires it
-+ * to be provided seperately for the descriptor.
-+ * rt2x00lib will cut the IV/EIV data out of all frames
-+ * given to us by mac80211, but we must tell mac80211
-+ * to generate the IV/EIV data.
-+ */
-+ key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
-+ key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
-+ }
-+
-+ /*
-+ * TXRX_CSR0_KEY_ID contains only single-bit fields to indicate
-+ * a particular key is valid.
-+ */
-+ rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
-+ rt2x00_set_field16(&reg, TXRX_CSR0_ALGORITHM, crypto->cipher);
-+ rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
-+
-+ mask = rt2x00_get_field16(reg, TXRX_CSR0_KEY_ID);
-+ if (crypto->cmd == SET_KEY)
-+ mask |= 1 << key->hw_key_idx;
-+ else if (crypto->cmd == DISABLE_KEY)
-+ mask &= ~(1 << key->hw_key_idx);
-+ rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, mask);
-+ rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
-+
-+ return 0;
-+}
-+
- static void rt2500usb_config_filter(struct rt2x00_dev *rt2x00dev,
- const unsigned int filter_flags)
- {
-@@ -844,7 +930,7 @@ static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
-
- rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
- rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
-- rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, 0xff);
-+ rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, 0);
- rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
-
- rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
-@@ -1066,7 +1152,7 @@ static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
- * Start writing the descriptor words.
- */
- rt2x00_desc_read(txd, 1, &word);
-- rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
-+ rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, txdesc->iv_offset);
- rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
- rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
- rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
-@@ -1079,6 +1165,11 @@ static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
- rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
- rt2x00_desc_write(txd, 2, word);
-
-+ if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags)) {
-+ _rt2x00_desc_write(txd, 3, skbdesc->iv);
-+ _rt2x00_desc_write(txd, 4, skbdesc->eiv);
-+ }
-+
- rt2x00_desc_read(txd, 0, &word);
- rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, txdesc->retry_limit);
- rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
-@@ -1093,7 +1184,8 @@ static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
- test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags));
- rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
- rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skb->len);
-- rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE);
-+ rt2x00_set_field32(&word, TXD_W0_CIPHER, txdesc->cipher);
-+ rt2x00_set_field32(&word, TXD_W0_KEY_ID, txdesc->key_idx);
- rt2x00_desc_write(txd, 0, word);
- }
-
-@@ -1204,6 +1296,7 @@ static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
- static void rt2500usb_fill_rxdone(struct queue_entry *entry,
- struct rxdone_entry_desc *rxdesc)
- {
-+ struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
- struct queue_entry_priv_usb *entry_priv = entry->priv_data;
- struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
- __le32 *rxd =
-@@ -1231,6 +1324,31 @@ static void rt2500usb_fill_rxdone(struct queue_entry *entry,
- if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
- rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
-
-+ if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) {
-+ rxdesc->cipher = rt2x00_get_field32(word0, RXD_W0_CIPHER);
-+ if (rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
-+ rxdesc->cipher_status = RX_CRYPTO_FAIL_KEY;
-+ }
-+
-+ if (rxdesc->cipher != CIPHER_NONE) {
-+ _rt2x00_desc_read(rxd, 2, &rxdesc->iv);
-+ _rt2x00_desc_read(rxd, 3, &rxdesc->eiv);
-+ /* ICV is located at the end of frame */
-+
-+ /*
-+ * Hardware has stripped IV/EIV data from 802.11 frame during
-+ * decryption. It has provided the data seperately but rt2x00lib
-+ * should decide if it should be reinserted.
-+ */
-+ rxdesc->flags |= RX_FLAG_IV_STRIPPED;
-+ if (rxdesc->cipher != CIPHER_TKIP)
-+ rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
-+ if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
-+ rxdesc->flags |= RX_FLAG_DECRYPTED;
-+ else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
-+ rxdesc->flags |= RX_FLAG_MMIC_ERROR;
-+ }
-+
- /*
- * Obtain the status about this packet.
- * When frame was received with an OFDM bitrate,
-@@ -1238,8 +1356,8 @@ static void rt2500usb_fill_rxdone(struct queue_entry *entry,
- * a CCK bitrate the signal is the rate in 100kbit/s.
- */
- rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
-- rxdesc->rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) -
-- entry->queue->rt2x00dev->rssi_offset;
-+ rxdesc->rssi =
-+ rt2x00_get_field32(word1, RXD_W1_RSSI) - rt2x00dev->rssi_offset;
- rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
-
- if (rt2x00_get_field32(word0, RXD_W0_OFDM))
-@@ -1729,6 +1847,8 @@ static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
- __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
- __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
- __set_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags);
-+ if (!modparam_nohwcrypt)
-+ __set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
- __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
-
- /*
-@@ -1748,6 +1868,7 @@ static const struct ieee80211_ops rt2500usb_mac80211_ops = {
- .config = rt2x00mac_config,
- .config_interface = rt2x00mac_config_interface,
- .configure_filter = rt2x00mac_configure_filter,
-+ .set_key = rt2x00mac_set_key,
- .get_stats = rt2x00mac_get_stats,
- .bss_info_changed = rt2x00mac_bss_info_changed,
- .conf_tx = rt2x00mac_conf_tx,
-@@ -1769,6 +1890,8 @@ static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
- .get_tx_data_len = rt2500usb_get_tx_data_len,
- .kick_tx_queue = rt2500usb_kick_tx_queue,
- .fill_rxdone = rt2500usb_fill_rxdone,
-+ .config_shared_key = rt2500usb_config_key,
-+ .config_pairwise_key = rt2500usb_config_key,
- .config_filter = rt2500usb_config_filter,
- .config_intf = rt2500usb_config_intf,
- .config_erp = rt2500usb_config_erp,
-diff --git a/drivers/net/wireless/rt2x00/rt2500usb.h b/drivers/net/wireless/rt2x00/rt2500usb.h
-index dbb5d68..4347dfd 100644
---- a/drivers/net/wireless/rt2x00/rt2500usb.h
-+++ b/drivers/net/wireless/rt2x00/rt2500usb.h
-@@ -447,6 +447,9 @@
- #define SEC_CSR30 0x04bc
- #define SEC_CSR31 0x04be
-
-+#define KEY_ENTRY(__idx) \
-+ ( SEC_CSR0 + ((__idx) * 16) )
-+
- /*
- * PHY control registers.
- */