diff options
Diffstat (limited to 'package/madwifi/patches/309-micfail_detect.patch')
| -rw-r--r-- | package/madwifi/patches/309-micfail_detect.patch | 321 |
1 files changed, 0 insertions, 321 deletions
diff --git a/package/madwifi/patches/309-micfail_detect.patch b/package/madwifi/patches/309-micfail_detect.patch deleted file mode 100644 index ca4103a206..0000000000 --- a/package/madwifi/patches/309-micfail_detect.patch +++ /dev/null @@ -1,321 +0,0 @@ ---- a/ath/if_ath.c -+++ b/ath/if_ath.c -@@ -6457,6 +6457,7 @@ ath_rx_poll(struct net_device *dev, int - int type; - u_int phyerr; - u_int processed = 0, early_stop = 0; -+ u_int mic_fail = 0; - - DPRINTF(sc, ATH_DEBUG_RX_PROC, "invoked\n"); - process_rx_again: -@@ -6558,24 +6559,8 @@ process_rx_again: - } - if (rs->rs_status & HAL_RXERR_MIC) { - sc->sc_stats.ast_rx_badmic++; -- /* -- * Do minimal work required to hand off -- * the 802.11 header for notification. -- */ -- /* XXX frag's and QoS frames */ -- if (len >= sizeof (struct ieee80211_frame)) { -- bus_dma_sync_single(sc->sc_bdev, -- bf->bf_skbaddr, len, -- BUS_DMA_FROMDEVICE); --#if 0 --/* XXX revalidate MIC, lookup ni to find VAP */ -- ieee80211_notify_michael_failure(ic, -- (struct ieee80211_frame *)skb->data, -- sc->sc_splitmic ? -- rs->rs_keyix - 32 : rs->rs_keyix -- ); --#endif -- } -+ mic_fail = 1; -+ goto rx_accept; - } - /* - * Reject error frames if we have no vaps that -@@ -6614,8 +6599,9 @@ rx_accept: - /* - * Finished monitor mode handling, now reject - * error frames before passing to other vaps -+ * Ignore MIC failures here, as we need to recheck them - */ -- if (rs->rs_status != 0) { -+ if (rs->rs_status & ~(HAL_RXERR_MIC | HAL_RXERR_DECRYPT)) { - ieee80211_dev_kfree_skb(&skb); - goto rx_next; - } -@@ -6623,6 +6609,26 @@ rx_accept: - /* remove the CRC */ - skb_trim(skb, skb->len - IEEE80211_CRC_LEN); - -+ if (mic_fail) { -+ /* Ignore control frames which are reported with mic error */ -+ if ((((struct ieee80211_frame *)skb->data)->i_fc[0] & -+ IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_CTL) -+ goto drop_micfail; -+ -+ ni = ieee80211_find_rxnode(ic, (const struct ieee80211_frame_min *) skb->data); -+ -+ if (ni && ni->ni_table) { -+ ieee80211_check_mic(ni, skb); -+ ieee80211_unref_node(&ni); -+ } -+ -+drop_micfail: -+ dev_kfree_skb_any(skb); -+ skb = NULL; -+ mic_fail = 0; -+ goto rx_next; -+ } -+ - /* - * From this point on we assume the frame is at least - * as large as ieee80211_frame_min; verify that. -@@ -6635,6 +6641,7 @@ rx_accept: - goto rx_next; - } - -+ /* MIC failure. Drop the packet in any case */ - /* - * Normal receive. - */ ---- a/net80211/ieee80211_crypto_ccmp.c -+++ b/net80211/ieee80211_crypto_ccmp.c -@@ -73,7 +73,7 @@ static int ccmp_setkey(struct ieee80211_ - static int ccmp_encap(struct ieee80211_key *, struct sk_buff *, u_int8_t); - static int ccmp_decap(struct ieee80211_key *, struct sk_buff *, int); - static int ccmp_enmic(struct ieee80211_key *, struct sk_buff *, int); --static int ccmp_demic(struct ieee80211_key *, struct sk_buff *, int); -+static int ccmp_demic(struct ieee80211_key *, struct sk_buff *, int, int); - - static const struct ieee80211_cipher ccmp = { - .ic_name = "AES-CCM", -@@ -314,7 +314,7 @@ ccmp_decap(struct ieee80211_key *k, stru - * Verify and strip MIC from the frame. - */ - static int --ccmp_demic(struct ieee80211_key *k, struct sk_buff *skb, int hdrlen) -+ccmp_demic(struct ieee80211_key *k, struct sk_buff *skb, int hdrlen, int force) - { - return 1; - } ---- a/net80211/ieee80211_crypto.h -+++ b/net80211/ieee80211_crypto.h -@@ -145,7 +145,7 @@ struct ieee80211_cipher { - int (*ic_encap)(struct ieee80211_key *, struct sk_buff *, u_int8_t); - int (*ic_decap)(struct ieee80211_key *, struct sk_buff *, int); - int (*ic_enmic)(struct ieee80211_key *, struct sk_buff *, int); -- int (*ic_demic)(struct ieee80211_key *, struct sk_buff *, int); -+ int (*ic_demic)(struct ieee80211_key *, struct sk_buff *, int, int); - }; - extern const struct ieee80211_cipher ieee80211_cipher_none; - -@@ -163,10 +163,10 @@ struct ieee80211_key *ieee80211_crypto_d - */ - static __inline int - ieee80211_crypto_demic(struct ieee80211vap *vap, struct ieee80211_key *k, -- struct sk_buff *skb, int hdrlen) -+ struct sk_buff *skb, int hdrlen, int force) - { - const struct ieee80211_cipher *cip = k->wk_cipher; -- return (cip->ic_miclen > 0 ? cip->ic_demic(k, skb, hdrlen) : 1); -+ return (cip->ic_miclen > 0 ? cip->ic_demic(k, skb, hdrlen, force) : 1); - } - - /* ---- a/net80211/ieee80211_crypto_none.c -+++ b/net80211/ieee80211_crypto_none.c -@@ -52,7 +52,7 @@ static int none_setkey(struct ieee80211_ - static int none_encap(struct ieee80211_key *, struct sk_buff *, u_int8_t); - static int none_decap(struct ieee80211_key *, struct sk_buff *, int); - static int none_enmic(struct ieee80211_key *, struct sk_buff *, int); --static int none_demic(struct ieee80211_key *, struct sk_buff *, int); -+static int none_demic(struct ieee80211_key *, struct sk_buff *, int, int); - - const struct ieee80211_cipher ieee80211_cipher_none = { - .ic_name = "NONE", -@@ -137,7 +137,7 @@ none_enmic(struct ieee80211_key *k, stru - } - - static int --none_demic(struct ieee80211_key *k, struct sk_buff *skb, int hdrlen) -+none_demic(struct ieee80211_key *k, struct sk_buff *skb, int hdrlen, int force) - { - struct ieee80211vap *vap = k->wk_private; - ---- a/net80211/ieee80211_crypto_tkip.c -+++ b/net80211/ieee80211_crypto_tkip.c -@@ -57,7 +57,7 @@ static int tkip_setkey(struct ieee80211_ - static int tkip_encap(struct ieee80211_key *, struct sk_buff *, u_int8_t); - static int tkip_enmic(struct ieee80211_key *, struct sk_buff *, int); - static int tkip_decap(struct ieee80211_key *, struct sk_buff *, int); --static int tkip_demic(struct ieee80211_key *, struct sk_buff *, int); -+static int tkip_demic(struct ieee80211_key *, struct sk_buff *, int, int); - - static const struct ieee80211_cipher tkip = { - .ic_name = "TKIP", -@@ -339,7 +339,7 @@ tkip_decap(struct ieee80211_key *k, stru - * Verify and strip MIC from the frame. - */ - static int --tkip_demic(struct ieee80211_key *k, struct sk_buff *skb0, int hdrlen) -+tkip_demic(struct ieee80211_key *k, struct sk_buff *skb0, int hdrlen, int force) - { - struct tkip_ctx *ctx = k->wk_private; - struct sk_buff *skb; -@@ -355,7 +355,7 @@ tkip_demic(struct ieee80211_key *k, stru - } - wh = (struct ieee80211_frame *) skb0->data; - /* NB: skb left pointing at last in chain */ -- if (k->wk_flags & IEEE80211_KEY_SWMIC) { -+ if ((k->wk_flags & IEEE80211_KEY_SWMIC) || force) { - struct ieee80211vap *vap = ctx->tc_vap; - u8 mic[IEEE80211_WEP_MICLEN]; - u8 mic0[IEEE80211_WEP_MICLEN]; ---- a/net80211/ieee80211_crypto_wep.c -+++ b/net80211/ieee80211_crypto_wep.c -@@ -54,7 +54,7 @@ static int wep_setkey(struct ieee80211_k - static int wep_encap(struct ieee80211_key *, struct sk_buff *, u_int8_t); - static int wep_decap(struct ieee80211_key *, struct sk_buff *, int); - static int wep_enmic(struct ieee80211_key *, struct sk_buff *, int); --static int wep_demic(struct ieee80211_key *, struct sk_buff *, int); -+static int wep_demic(struct ieee80211_key *, struct sk_buff *, int, int); - - static const struct ieee80211_cipher wep = { - .ic_name = "WEP", -@@ -244,7 +244,7 @@ wep_decap(struct ieee80211_key *k, struc - * Verify and strip MIC from the frame. - */ - static int --wep_demic(struct ieee80211_key *k, struct sk_buff *skb, int hdrlen) -+wep_demic(struct ieee80211_key *k, struct sk_buff *skb, int hdrlen, int force) - { - return 1; - } ---- a/net80211/ieee80211_input.c -+++ b/net80211/ieee80211_input.c -@@ -669,7 +669,7 @@ ieee80211_input(struct ieee80211vap * va - * Next strip any MSDU crypto bits. - */ - if (key != NULL && -- !ieee80211_crypto_demic(vap, key, skb, hdrspace)) { -+ !ieee80211_crypto_demic(vap, key, skb, hdrspace, 0)) { - IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT, - ni->ni_macaddr, "data", "%s", "demic error"); - IEEE80211_NODE_STAT(ni, rx_demicfail); -@@ -4293,6 +4293,47 @@ ath_eth_type_trans(struct sk_buff *skb, - } - #endif - -+/* -+ * Process a frame w/ hw detected MIC failure. -+ * The frame will be dropped in any case. -+ */ -+void -+ieee80211_check_mic(struct ieee80211_node *ni, struct sk_buff *skb) -+{ -+ struct ieee80211vap *vap = ni->ni_vap; -+ -+ struct ieee80211_frame *wh; -+ struct ieee80211_key *key; -+ int hdrspace; -+ struct ieee80211com *ic = vap->iv_ic; -+ -+ if (skb->len < sizeof(struct ieee80211_frame_min)) { -+ IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY, -+ ni->ni_macaddr, NULL, -+ "too short (1): len %u", skb->len); -+ vap->iv_stats.is_rx_tooshort++; -+ return; -+ } -+ -+ wh = (struct ieee80211_frame *)skb->data; -+ -+ hdrspace = ieee80211_hdrspace(ic, wh); -+ key = ieee80211_crypto_decap(ni, skb, hdrspace); -+ if (key == NULL) { -+ /* NB: stats+msgs handled in crypto_decap */ -+ IEEE80211_NODE_STAT(ni, rx_wepfail); -+ return; -+ } -+ -+ if (!ieee80211_crypto_demic(vap, key, skb, hdrspace, 1)) { -+ IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT, -+ ni->ni_macaddr, "data", "%s", "demic error"); -+ IEEE80211_NODE_STAT(ni, rx_demicfail); -+ } -+ return; -+} -+EXPORT_SYMBOL(ieee80211_check_mic); -+ - #ifdef IEEE80211_DEBUG - /* - * Debugging support. ---- a/net80211/ieee80211_proto.h -+++ b/net80211/ieee80211_proto.h -@@ -90,6 +90,7 @@ int ieee80211_iserp_rateset(struct ieee8 - void ieee80211_set11gbasicrates(struct ieee80211_rateset *, enum ieee80211_phymode); - enum ieee80211_phymode ieee80211_get11gbasicrates(struct ieee80211_rateset *); - void ieee80211_send_pspoll(struct ieee80211_node *); -+void ieee80211_check_mic(struct ieee80211_node *, struct sk_buff *); - - /* - * Return the size of the 802.11 header for a management or data frame. ---- a/net80211/ieee80211_linux.c -+++ b/net80211/ieee80211_linux.c -@@ -337,8 +337,8 @@ ieee80211_notify_replay_failure(struct i - /* TODO: needed parameters: count, keyid, key type, src address, TSC */ - snprintf(buf, sizeof(buf), "%s(keyid=%d %scast addr=" MAC_FMT ")", tag, - k->wk_keyix, -- IEEE80211_IS_MULTICAST(wh->i_addr1) ? "broad" : "uni", -- MAC_ADDR(wh->i_addr1)); -+ IEEE80211_IS_MULTICAST(wh->i_addr2) ? "broad" : "uni", -+ MAC_ADDR(wh->i_addr2)); - memset(&wrqu, 0, sizeof(wrqu)); - wrqu.data.length = strlen(buf); - wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf); ---- a/net80211/ieee80211_output.c -+++ b/net80211/ieee80211_output.c -@@ -1074,13 +1074,16 @@ ieee80211_encap(struct ieee80211_node *n - cip = (struct ieee80211_cipher *) key->wk_cipher; - ciphdrsize = cip->ic_header; - tailsize += (cip->ic_trailer + cip->ic_miclen); -+ -+ /* add the 8 bytes MIC length */ -+ if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) -+ pktlen += IEEE80211_WEP_MICLEN; - } - - pdusize = vap->iv_fragthreshold - (hdrsize_nopad + ciphdrsize); - fragcnt = *framecnt = -- ((pktlen - (hdrsize_nopad + ciphdrsize)) / pdusize) + -- (((pktlen - (hdrsize_nopad + ciphdrsize)) % -- pdusize == 0) ? 0 : 1); -+ ((pktlen - hdrsize_nopad) / pdusize) + -+ (((pktlen - hdrsize_nopad) % pdusize == 0) ? 0 : 1); - - /* - * Allocate sk_buff for each subsequent fragment; First fragment ---- a/net80211/ieee80211_node.c -+++ b/net80211/ieee80211_node.c -@@ -2264,11 +2264,13 @@ ieee80211_node_leave(struct ieee80211_no - /* From this point onwards we can no longer find the node, - * so no more references are generated - */ -- ieee80211_remove_wds_addr(nt, ni->ni_macaddr); -- ieee80211_del_wds_node(nt, ni); -- IEEE80211_NODE_TABLE_LOCK_IRQ(nt); -- node_table_leave_locked(nt, ni); -- IEEE80211_NODE_TABLE_UNLOCK_IRQ(nt); -+ if (nt) { -+ ieee80211_remove_wds_addr(nt, ni->ni_macaddr); -+ ieee80211_del_wds_node(nt, ni); -+ IEEE80211_NODE_TABLE_LOCK_IRQ(nt); -+ node_table_leave_locked(nt, ni); -+ IEEE80211_NODE_TABLE_UNLOCK_IRQ(nt); -+ } - - /* - * If node wasn't previously associated all |