X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/7f93038dad7c0432a86a23fe87a94c8f3c6d0856..5a304bac4e4bf4e03a75e4f79e1970395a5296b4:/package/madwifi/patches/309-micfail_detect.patch diff --git a/package/madwifi/patches/309-micfail_detect.patch b/package/madwifi/patches/309-micfail_detect.patch index 6eed79384..ca4103a20 100644 --- a/package/madwifi/patches/309-micfail_detect.patch +++ b/package/madwifi/patches/309-micfail_detect.patch @@ -1,15 +1,14 @@ -diff -ur madwifi.old/ath/if_ath.c madwifi.dev/ath/if_ath.c ---- madwifi.old/ath/if_ath.c 2007-05-21 07:53:37.247279824 +0200 -+++ madwifi.dev/ath/if_ath.c 2007-05-21 07:55:23.290158856 +0200 -@@ -5598,6 +5598,7 @@ +--- 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; - int processed = 0, early_stop = 0; - int rx_limit = dev->quota; -+ int mic_fail = 0; + u_int processed = 0, early_stop = 0; ++ u_int mic_fail = 0; - /* Let the 802.11 layer know about the new noise floor */ - ic->ic_channoise = sc->sc_channoise; -@@ -5692,31 +5693,16 @@ + 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++; @@ -18,7 +17,6 @@ diff -ur madwifi.old/ath/if_ath.c madwifi.dev/ath/if_ath.c - * the 802.11 header for notification. - */ - /* XXX frag's and QoS frames */ -- len = rs->rs_datalen; - if (len >= sizeof (struct ieee80211_frame)) { - bus_dma_sync_single(sc->sc_bdev, - bf->bf_skbaddr, len, @@ -26,51 +24,66 @@ diff -ur madwifi.old/ath/if_ath.c madwifi.dev/ath/if_ath.c -#if 0 -/* XXX revalidate MIC, lookup ni to find VAP */ - ieee80211_notify_michael_failure(ic, -- (struct ieee80211_frame *) skb->data, +- (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 - * are operating in monitor mode. - */ -- if(sc->sc_nmonvaps == 0) goto rx_next; -+ if ((rs->rs_status & ~HAL_RXERR_MIC) && -+ ((rs->rs_status &~ HAL_RXERR_DECRYPT) || -+ (sc->sc_ic.ic_opmode != IEEE80211_M_MONITOR))) -+ goto rx_next; - } - rx_accept: + * Reject error frames if we have no vaps that +@@ -6614,8 +6599,9 @@ rx_accept: /* -@@ -5800,6 +5786,20 @@ - rs->rs_rssi); + * 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); -+ /* MIC failure. Drop the packet in any case */ + if (mic_fail) { -+ ni = ieee80211_find_rxnode(ic, -+ (const struct ieee80211_frame_min *) skb->data); -+ if (ni != NULL) { ++ /* 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; -+ } ++ } + /* - * Locate the node for sender, track state, and then - * pass the (referenced) node up to the 802.11 layer -diff -ur madwifi.old/net80211/ieee80211_crypto_ccmp.c madwifi.dev/net80211/ieee80211_crypto_ccmp.c ---- madwifi.old/net80211/ieee80211_crypto_ccmp.c 2007-05-18 13:19:16.000000000 +0200 -+++ madwifi.dev/net80211/ieee80211_crypto_ccmp.c 2007-05-21 07:54:24.892036720 +0200 -@@ -78,7 +78,7 @@ + * 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); @@ -79,7 +92,7 @@ diff -ur madwifi.old/net80211/ieee80211_crypto_ccmp.c madwifi.dev/net80211/ieee8 static const struct ieee80211_cipher ccmp = { .ic_name = "AES-CCM", -@@ -298,7 +298,7 @@ +@@ -314,7 +314,7 @@ ccmp_decap(struct ieee80211_key *k, stru * Verify and strip MIC from the frame. */ static int @@ -88,10 +101,9 @@ diff -ur madwifi.old/net80211/ieee80211_crypto_ccmp.c madwifi.dev/net80211/ieee8 { return 1; } -diff -ur madwifi.old/net80211/ieee80211_crypto.h madwifi.dev/net80211/ieee80211_crypto.h ---- madwifi.old/net80211/ieee80211_crypto.h 2007-05-04 15:45:58.000000000 +0200 -+++ madwifi.dev/net80211/ieee80211_crypto.h 2007-05-21 07:54:24.893036568 +0200 -@@ -145,7 +145,7 @@ +--- 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); @@ -100,7 +112,7 @@ diff -ur madwifi.old/net80211/ieee80211_crypto.h madwifi.dev/net80211/ieee80211_ }; extern const struct ieee80211_cipher ieee80211_cipher_none; -@@ -163,10 +163,10 @@ +@@ -163,10 +163,10 @@ struct ieee80211_key *ieee80211_crypto_d */ static __inline int ieee80211_crypto_demic(struct ieee80211vap *vap, struct ieee80211_key *k, @@ -113,10 +125,9 @@ diff -ur madwifi.old/net80211/ieee80211_crypto.h madwifi.dev/net80211/ieee80211_ } /* -diff -ur madwifi.old/net80211/ieee80211_crypto_none.c madwifi.dev/net80211/ieee80211_crypto_none.c ---- madwifi.old/net80211/ieee80211_crypto_none.c 2006-09-20 10:45:13.000000000 +0200 -+++ madwifi.dev/net80211/ieee80211_crypto_none.c 2007-05-21 07:54:24.893036568 +0200 -@@ -52,7 +52,7 @@ +--- 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); @@ -125,7 +136,7 @@ diff -ur madwifi.old/net80211/ieee80211_crypto_none.c madwifi.dev/net80211/ieee8 const struct ieee80211_cipher ieee80211_cipher_none = { .ic_name = "NONE", -@@ -137,7 +137,7 @@ +@@ -137,7 +137,7 @@ none_enmic(struct ieee80211_key *k, stru } static int @@ -134,10 +145,9 @@ diff -ur madwifi.old/net80211/ieee80211_crypto_none.c madwifi.dev/net80211/ieee8 { struct ieee80211vap *vap = k->wk_private; -diff -ur madwifi.old/net80211/ieee80211_crypto_tkip.c madwifi.dev/net80211/ieee80211_crypto_tkip.c ---- madwifi.old/net80211/ieee80211_crypto_tkip.c 2007-05-18 13:19:16.000000000 +0200 -+++ madwifi.dev/net80211/ieee80211_crypto_tkip.c 2007-05-21 07:54:24.893036568 +0200 -@@ -57,7 +57,7 @@ +--- 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); @@ -146,7 +156,7 @@ diff -ur madwifi.old/net80211/ieee80211_crypto_tkip.c madwifi.dev/net80211/ieee8 static const struct ieee80211_cipher tkip = { .ic_name = "TKIP", -@@ -339,7 +339,7 @@ +@@ -339,7 +339,7 @@ tkip_decap(struct ieee80211_key *k, stru * Verify and strip MIC from the frame. */ static int @@ -155,7 +165,7 @@ diff -ur madwifi.old/net80211/ieee80211_crypto_tkip.c madwifi.dev/net80211/ieee8 { struct tkip_ctx *ctx = k->wk_private; struct sk_buff *skb; -@@ -355,7 +355,7 @@ +@@ -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 */ @@ -164,10 +174,9 @@ diff -ur madwifi.old/net80211/ieee80211_crypto_tkip.c madwifi.dev/net80211/ieee8 struct ieee80211vap *vap = ctx->tc_vap; u8 mic[IEEE80211_WEP_MICLEN]; u8 mic0[IEEE80211_WEP_MICLEN]; -diff -ur madwifi.old/net80211/ieee80211_crypto_wep.c madwifi.dev/net80211/ieee80211_crypto_wep.c ---- madwifi.old/net80211/ieee80211_crypto_wep.c 2006-09-20 10:45:13.000000000 +0200 -+++ madwifi.dev/net80211/ieee80211_crypto_wep.c 2007-05-21 07:54:24.894036416 +0200 -@@ -54,7 +54,7 @@ +--- 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); @@ -176,7 +185,7 @@ diff -ur madwifi.old/net80211/ieee80211_crypto_wep.c madwifi.dev/net80211/ieee80 static const struct ieee80211_cipher wep = { .ic_name = "WEP", -@@ -244,7 +244,7 @@ +@@ -244,7 +244,7 @@ wep_decap(struct ieee80211_key *k, struc * Verify and strip MIC from the frame. */ static int @@ -185,10 +194,9 @@ diff -ur madwifi.old/net80211/ieee80211_crypto_wep.c madwifi.dev/net80211/ieee80 { return 1; } -diff -ur madwifi.old/net80211/ieee80211_input.c madwifi.dev/net80211/ieee80211_input.c ---- madwifi.old/net80211/ieee80211_input.c 2007-05-21 07:53:37.249279520 +0200 -+++ madwifi.dev/net80211/ieee80211_input.c 2007-05-21 07:54:24.895036264 +0200 -@@ -654,7 +654,7 @@ +--- 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 && @@ -197,12 +205,12 @@ diff -ur madwifi.old/net80211/ieee80211_input.c madwifi.dev/net80211/ieee80211_i IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT, ni->ni_macaddr, "data", "%s", "demic error"); IEEE80211_NODE_STAT(ni, rx_demicfail); -@@ -3778,6 +3778,47 @@ +@@ -4293,6 +4293,47 @@ ath_eth_type_trans(struct sk_buff *skb, } #endif +/* -+ * Process a frame w/ hw detected MIC failure. ++ * Process a frame w/ hw detected MIC failure. + * The frame will be dropped in any case. + */ +void @@ -214,7 +222,7 @@ diff -ur madwifi.old/net80211/ieee80211_input.c madwifi.dev/net80211/ieee80211_i + 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, @@ -224,7 +232,7 @@ diff -ur madwifi.old/net80211/ieee80211_input.c madwifi.dev/net80211/ieee80211_i + } + + wh = (struct ieee80211_frame *)skb->data; -+ ++ + hdrspace = ieee80211_hdrspace(ic, wh); + key = ieee80211_crypto_decap(ni, skb, hdrspace); + if (key == NULL) { @@ -245,24 +253,9 @@ diff -ur madwifi.old/net80211/ieee80211_input.c madwifi.dev/net80211/ieee80211_i #ifdef IEEE80211_DEBUG /* * Debugging support. -diff -ur madwifi.old/net80211/ieee80211_linux.c madwifi.dev/net80211/ieee80211_linux.c ---- madwifi.old/net80211/ieee80211_linux.c 2007-05-21 07:49:54.528138280 +0200 -+++ madwifi.dev/net80211/ieee80211_linux.c 2007-05-21 07:54:24.896036112 +0200 -@@ -311,8 +311,8 @@ - - /* TODO: needed parameters: count, keyid, key type, src address, TSC */ - snprintf(buf, sizeof(buf), "%s(keyid=%d %scast addr=%s)", tag, -- keyix, IEEE80211_IS_MULTICAST(wh->i_addr1) ? "broad" : "uni", -- ether_sprintf(wh->i_addr1)); -+ keyix, IEEE80211_IS_MULTICAST(wh->i_addr2) ? "broad" : "uni", -+ ether_sprintf(wh->i_addr2)); - memset(&wrqu, 0, sizeof(wrqu)); - wrqu.data.length = strlen(buf); - wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf); -diff -ur madwifi.old/net80211/ieee80211_proto.h madwifi.dev/net80211/ieee80211_proto.h ---- madwifi.old/net80211/ieee80211_proto.h 2007-05-21 07:49:54.574131288 +0200 -+++ madwifi.dev/net80211/ieee80211_proto.h 2007-05-21 07:54:24.896036112 +0200 -@@ -91,6 +91,7 @@ +--- 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 *); @@ -270,3 +263,59 @@ diff -ur madwifi.old/net80211/ieee80211_proto.h madwifi.dev/net80211/ieee80211_p /* * 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