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-rw-r--r--package/mac80211/patches/019-mac80211-key-seq-nl80211.patch161
1 files changed, 161 insertions, 0 deletions
diff --git a/package/mac80211/patches/019-mac80211-key-seq-nl80211.patch b/package/mac80211/patches/019-mac80211-key-seq-nl80211.patch
new file mode 100644
index 0000000..5d0020b
--- /dev/null
+++ b/package/mac80211/patches/019-mac80211-key-seq-nl80211.patch
@@ -0,0 +1,161 @@
+Subject: mac80211: support getting key sequence counters via cfg80211
+
+This implements cfg80211's get_key() to allow retrieving the sequence
+counter for a TKIP or CCMP key from userspace. It also cleans up and
+documents the associated low-level driver interface.
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+
+---
+ include/net/mac80211.h | 14 ++------
+ net/mac80211/cfg.c | 85 ++++++++++++++++++++++++++++++++++++++++++++++++-
+ 2 files changed, 89 insertions(+), 10 deletions(-)
+
+Index: mac80211/net/mac80211/cfg.c
+===================================================================
+--- mac80211.orig/net/mac80211/cfg.c 2007-11-11 15:46:41.497954646 +0100
++++ mac80211/net/mac80211/cfg.c 2007-11-11 15:46:51.346515884 +0100
+@@ -1,7 +1,7 @@
+ /*
+ * mac80211 configuration hooks for cfg80211
+ *
+- * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
++ * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This file is GPLv2 as found in COPYING.
+ */
+@@ -180,6 +180,88 @@
+ return 0;
+ }
+
++static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
++ u8 key_idx, u8 *mac_addr, void *cookie,
++ void (*callback)(void *cookie,
++ struct key_params *params))
++{
++ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++ struct sta_info *sta = NULL;
++ u8 seq[6] = {0};
++ struct key_params params;
++ struct ieee80211_key *key;
++ u32 iv32;
++ u16 iv16;
++ int err = -ENOENT;
++
++ if (mac_addr) {
++ sta = sta_info_get(sdata->local, mac_addr);
++ if (!sta)
++ goto out;
++
++ key = sta->key;
++ } else
++ key = sdata->keys[key_idx];
++
++ if (!key)
++ goto out;
++
++ memset(&params, 0, sizeof(params));
++
++ switch (key->conf.alg) {
++ case ALG_TKIP:
++ params.cipher = WLAN_CIPHER_SUITE_TKIP;
++
++ iv32 = key->u.tkip.iv32;
++ iv16 = key->u.tkip.iv16;
++
++ if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
++ sdata->local->ops->get_tkip_seq)
++ sdata->local->ops->get_tkip_seq(
++ local_to_hw(sdata->local),
++ key->conf.hw_key_idx,
++ &iv32, &iv16);
++
++ seq[0] = iv16 & 0xff;
++ seq[1] = (iv16 >> 8) & 0xff;
++ seq[2] = iv32 & 0xff;
++ seq[3] = (iv32 >> 8) & 0xff;
++ seq[4] = (iv32 >> 16) & 0xff;
++ seq[5] = (iv32 >> 24) & 0xff;
++ params.seq = seq;
++ params.seq_len = 6;
++ break;
++ case ALG_CCMP:
++ params.cipher = WLAN_CIPHER_SUITE_CCMP;
++ seq[0] = key->u.ccmp.tx_pn[5];
++ seq[1] = key->u.ccmp.tx_pn[4];
++ seq[2] = key->u.ccmp.tx_pn[3];
++ seq[3] = key->u.ccmp.tx_pn[2];
++ seq[4] = key->u.ccmp.tx_pn[1];
++ seq[5] = key->u.ccmp.tx_pn[0];
++ params.seq = seq;
++ params.seq_len = 6;
++ break;
++ case ALG_WEP:
++ if (key->conf.keylen == 5)
++ params.cipher = WLAN_CIPHER_SUITE_WEP40;
++ else
++ params.cipher = WLAN_CIPHER_SUITE_WEP104;
++ break;
++ }
++
++ params.key = key->conf.key;
++ params.key_len = key->conf.keylen;
++
++ callback(cookie, &params);
++ err = 0;
++
++ out:
++ if (sta)
++ sta_info_put(sta);
++ return err;
++}
++
+ static int ieee80211_config_default_key(struct wiphy *wiphy,
+ struct net_device *dev,
+ u8 key_idx)
+@@ -198,5 +280,6 @@
+ .change_virtual_intf = ieee80211_change_iface,
+ .add_key = ieee80211_add_key,
+ .del_key = ieee80211_del_key,
++ .get_key = ieee80211_get_key,
+ .set_default_key = ieee80211_config_default_key,
+ };
+Index: mac80211/include/net/mac80211.h
+===================================================================
+--- mac80211.orig/include/net/mac80211.h 2007-11-11 15:46:41.377947807 +0100
++++ mac80211/include/net/mac80211.h 2007-11-11 15:47:08.183475366 +0100
+@@ -598,9 +598,6 @@
+ u8 key[0];
+ };
+
+-#define IEEE80211_SEQ_COUNTER_RX 0
+-#define IEEE80211_SEQ_COUNTER_TX 1
+-
+ /**
+ * enum set_key_cmd - key command
+ *
+@@ -947,9 +944,9 @@
+ *
+ * @get_stats: return low-level statistics
+ *
+- * @get_sequence_counter: For devices that have internal sequence counters this
+- * callback allows mac80211 to access the current value of a counter.
+- * This callback seems not well-defined, tell us if you need it.
++ * @get_tkip_seq: If your device implements TKIP encryption in hardware this
++ * callback should be provided to read the TKIP transmit IVs (both IV32
++ * and IV16) for the given key from hardware.
+ *
+ * @set_rts_threshold: Configuration of RTS threshold (if device needs it)
+ *
+@@ -1022,9 +1019,8 @@
+ int (*hw_scan)(struct ieee80211_hw *hw, u8 *ssid, size_t len);
+ int (*get_stats)(struct ieee80211_hw *hw,
+ struct ieee80211_low_level_stats *stats);
+- int (*get_sequence_counter)(struct ieee80211_hw *hw,
+- u8* addr, u8 keyidx, u8 txrx,
+- u32* iv32, u16* iv16);
++ void (*get_tkip_seq)(struct ieee80211_hw *hw, u8 hw_key_idx,
++ u32 *iv32, u16 *iv16);
+ int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value);
+ int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value);
+ int (*set_retry_limit)(struct ieee80211_hw *hw,