diff options
author | Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> | 2016-03-01 19:18:07 +0200 |
---|---|---|
committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2016-03-07 11:43:19 +0200 |
commit | 58527421489dcc1110f6bcfd3b50d479199af4e0 (patch) | |
tree | 759a1090d8d9fa4682bd8995608aee3f7665169a /drivers/net/wireless/ath/wil6210/debugfs.c | |
parent | b42f11963f7bd8c54d0a28d679c13d9e83b85357 (diff) |
wil6210: replay attack detection
Check PN for encrypted frames.
Maintain PN data for Rx keys, pairwise per TID and group.
Print PN's in the debugfs "stations" entry, like:
[0] 04:ce:14:0a:3c:3d connected
[ 0] ([32] 0 TU) 0x0fe [____________________________|___] total 252 drop 0 (dup 0 + old 0) last 0x000
[ 0] PN [0+]000000000000 [1-]000000000000 [2-]000000000000 [3-]000000000000
[GR] PN [0-]000000000000 [1+]000000000000 [2+]000000000000 [3-]000000000000
Rx invalid frame: non-data 0, short 0, large 0, replay 0
Rx/MCS: 0 110 65 65 65 0 12 0 0 0 0 0 0
[1] 00:00:00:00:00:00 unused
[2] 00:00:00:00:00:00 unused
[3] 00:00:00:00:00:00 unused
[4] 00:00:00:00:00:00 unused
[5] 00:00:00:00:00:00 unused
[6] 00:00:00:00:00:00 unused
[7] 00:00:00:00:00:00 unused
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Hamad Kadmany <qca_hkadmany@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/debugfs.c')
-rw-r--r-- | drivers/net/wireless/ath/wil6210/debugfs.c | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c index 3bbe73b6d05a..d80bb75c6576 100644 --- a/drivers/net/wireless/ath/wil6210/debugfs.c +++ b/drivers/net/wireless/ath/wil6210/debugfs.c @@ -1333,6 +1333,34 @@ static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r) r->ssn_last_drop); } +static void wil_print_rxtid_crypto(struct seq_file *s, int tid, + struct wil_tid_crypto_rx *c) +{ + int i; + + for (i = 0; i < 4; i++) { + struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; + + if (cc->key_set) + goto has_keys; + } + return; + +has_keys: + if (tid < WIL_STA_TID_NUM) + seq_printf(s, " [%2d] PN", tid); + else + seq_puts(s, " [GR] PN"); + + for (i = 0; i < 4; i++) { + struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; + + seq_printf(s, " [%i%s]%6phN", i, cc->key_set ? "+" : "-", + cc->pn); + } + seq_puts(s, "\n"); +} + static int wil_sta_debugfs_show(struct seq_file *s, void *data) __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock) { @@ -1360,18 +1388,25 @@ __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock) spin_lock_bh(&p->tid_rx_lock); for (tid = 0; tid < WIL_STA_TID_NUM; tid++) { struct wil_tid_ampdu_rx *r = p->tid_rx[tid]; + struct wil_tid_crypto_rx *c = + &p->tid_crypto_rx[tid]; if (r) { - seq_printf(s, "[%2d] ", tid); + seq_printf(s, " [%2d] ", tid); wil_print_rxtid(s, r); } + + wil_print_rxtid_crypto(s, tid, c); } + wil_print_rxtid_crypto(s, WIL_STA_TID_NUM, + &p->group_crypto_rx); spin_unlock_bh(&p->tid_rx_lock); seq_printf(s, - "Rx invalid frame: non-data %lu, short %lu, large %lu\n", + "Rx invalid frame: non-data %lu, short %lu, large %lu, replay %lu\n", p->stats.rx_non_data_frame, p->stats.rx_short_frame, - p->stats.rx_large_frame); + p->stats.rx_large_frame, + p->stats.rx_replay); seq_puts(s, "Rx/MCS:"); for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs); |