diff options
| -rw-r--r-- | net/mac80211/debugfs_key.c | 2 | ||||
| -rw-r--r-- | net/mac80211/key.c | 2 | ||||
| -rw-r--r-- | net/mac80211/key.h | 8 | ||||
| -rw-r--r-- | net/mac80211/rx.c | 9 | ||||
| -rw-r--r-- | net/mac80211/wpa.c | 8 |
5 files changed, 22 insertions, 7 deletions
diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c index 97c9e46..fa5e76e 100644 --- a/net/mac80211/debugfs_key.c +++ b/net/mac80211/debugfs_key.c @@ -143,7 +143,7 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf, len = p - buf; break; case ALG_CCMP: - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) { + for (i = 0; i < NUM_RX_DATA_QUEUES + 1; i++) { rpn = key->u.ccmp.rx_pn[i]; p += scnprintf(p, sizeof(buf)+buf-p, "%02x%02x%02x%02x%02x%02x\n", diff --git a/net/mac80211/key.c b/net/mac80211/key.c index d0d9001..50d1cff 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -273,7 +273,7 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg, key->conf.iv_len = CCMP_HDR_LEN; key->conf.icv_len = CCMP_MIC_LEN; if (seq) { - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) + for (i = 0; i < NUM_RX_DATA_QUEUES + 1; i++) for (j = 0; j < CCMP_PN_LEN; j++) key->u.ccmp.rx_pn[i][j] = seq[CCMP_PN_LEN - j - 1]; diff --git a/net/mac80211/key.h b/net/mac80211/key.h index 9996e3b..a3849fa 100644 --- a/net/mac80211/key.h +++ b/net/mac80211/key.h @@ -77,7 +77,13 @@ struct ieee80211_key { } tkip; struct { u8 tx_pn[6]; - u8 rx_pn[NUM_RX_DATA_QUEUES][6]; + /* + * Last received packet number. The first + * NUM_RX_DATA_QUEUES counters are used with Data + * frames and the last counter is used with Robust + * Management frames. + */ + u8 rx_pn[NUM_RX_DATA_QUEUES + 1][6]; struct crypto_cipher *tfm; u32 replays; /* dot11RSNAStatsCCMPReplays */ /* scratch buffers for virt_to_page() (crypto API) */ diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 1594ebe..1f76352 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1267,11 +1267,13 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) rx->queue, &(rx->skb)); if (rx->key && rx->key->conf.alg == ALG_CCMP && ieee80211_has_protected(fc)) { + int queue = ieee80211_is_mgmt(fc) ? + NUM_RX_DATA_QUEUES : rx->queue; /* Store CCMP PN so that we can verify that the next * fragment has a sequential PN value. */ entry->ccmp = 1; memcpy(entry->last_pn, - rx->key->u.ccmp.rx_pn[rx->queue], + rx->key->u.ccmp.rx_pn[queue], CCMP_PN_LEN); } return RX_QUEUED; @@ -1291,6 +1293,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) if (entry->ccmp) { int i; u8 pn[CCMP_PN_LEN], *rpn; + int queue; if (!rx->key || rx->key->conf.alg != ALG_CCMP) return RX_DROP_UNUSABLE; memcpy(pn, entry->last_pn, CCMP_PN_LEN); @@ -1299,7 +1302,9 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) if (pn[i]) break; } - rpn = rx->key->u.ccmp.rx_pn[rx->queue]; + queue = ieee80211_is_mgmt(fc) ? + NUM_RX_DATA_QUEUES : rx->queue; + rpn = rx->key->u.ccmp.rx_pn[queue]; if (memcmp(pn, rpn, CCMP_PN_LEN)) return RX_DROP_UNUSABLE; memcpy(entry->last_pn, pn, CCMP_PN_LEN); diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 0adbcc9..a14e677 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -436,6 +436,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx) struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); u8 pn[CCMP_PN_LEN]; int data_len; + int queue; hdrlen = ieee80211_hdrlen(hdr->frame_control); @@ -453,7 +454,10 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx) ccmp_hdr2pn(pn, skb->data + hdrlen); - if (memcmp(pn, key->u.ccmp.rx_pn[rx->queue], CCMP_PN_LEN) <= 0) { + queue = ieee80211_is_mgmt(hdr->frame_control) ? + NUM_RX_DATA_QUEUES : rx->queue; + + if (memcmp(pn, key->u.ccmp.rx_pn[queue], CCMP_PN_LEN) <= 0) { key->u.ccmp.replays++; return RX_DROP_UNUSABLE; } @@ -470,7 +474,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx) return RX_DROP_UNUSABLE; } - memcpy(key->u.ccmp.rx_pn[rx->queue], pn, CCMP_PN_LEN); + memcpy(key->u.ccmp.rx_pn[queue], pn, CCMP_PN_LEN); /* Remove CCMP header and MIC */ skb_trim(skb, skb->len - CCMP_MIC_LEN); |