From a31cf1c69e89e0c2d5515b04aca313f1014a714d Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 20 Apr 2015 18:21:58 +0200 Subject: mac80211: extend get_key() to return PN for all ciphers For ciphers not supported by mac80211, the function currently doesn't return any PN data. Fix this by extending the driver's get_key_seq() a little more to allow moving arbitrary PN data. Signed-off-by: Johannes Berg --- net/mac80211/cfg.c | 9 +++++++++ net/mac80211/key.c | 4 ++-- net/mac80211/key.h | 3 +-- 3 files changed, 12 insertions(+), 4 deletions(-) (limited to 'net') diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index dd7014b09396..3469bbdc891c 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -431,6 +431,15 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, params.seq = seq; params.seq_len = 6; break; + default: + if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) + break; + if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) + break; + drv_get_key_seq(sdata->local, key, &kseq); + params.seq = kseq.hw.seq; + params.seq_len = kseq.hw.seq_len; + break; } params.key = key->conf.key; diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 3e0b814f4db3..0a5d5c5ad30f 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -485,8 +485,8 @@ ieee80211_key_alloc(u32 cipher, int idx, size_t key_len, break; default: if (cs) { - size_t len = (seq_len > MAX_PN_LEN) ? - MAX_PN_LEN : seq_len; + size_t len = (seq_len > IEEE80211_MAX_PN_LEN) ? + IEEE80211_MAX_PN_LEN : seq_len; key->conf.iv_len = cs->hdr_len; key->conf.icv_len = cs->mic_len; diff --git a/net/mac80211/key.h b/net/mac80211/key.h index c5a31835be0e..df430a618764 100644 --- a/net/mac80211/key.h +++ b/net/mac80211/key.h @@ -18,7 +18,6 @@ #define NUM_DEFAULT_KEYS 4 #define NUM_DEFAULT_MGMT_KEYS 2 -#define MAX_PN_LEN 16 struct ieee80211_local; struct ieee80211_sub_if_data; @@ -116,7 +115,7 @@ struct ieee80211_key { } gcmp; struct { /* generic cipher scheme */ - u8 rx_pn[IEEE80211_NUM_TIDS + 1][MAX_PN_LEN]; + u8 rx_pn[IEEE80211_NUM_TIDS + 1][IEEE80211_MAX_PN_LEN]; } gen; } u; -- cgit v1.2.3