diff options
Diffstat (limited to 'package/mac80211/patches/019-mac80211-key-seq-nl80211.patch')
| -rw-r--r-- | package/mac80211/patches/019-mac80211-key-seq-nl80211.patch | 161 |
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(¶ms, 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, ¶ms); ++ 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, |