Date:   Mon, 31 Jul 2017 12:42:05 +0200
From:   tibaldiamos <tibaldi.amos@...gilio.it>
To:     linux-kernel@...r.kernel.org
Subject: patch for the linux kernels 4.9.x IEEE80211_TX_CTL_REQ_TX_STATUS
 IEEE80211_TX_INTFL_MLME_CONN_TX

tibaldi@...alhost:/usr/src/linux-source-4.9$ grep -r "send\ auth\ t" *
Binary file net/mac80211/mlme.o matches
Binary file net/mac80211/mac80211.o matches
net/mac80211/mlme.c: sdata_info(sdata, "send auth to %pM (try %d/%d)\n",
Binary file net/mac80211/mac80211.ko matches
tibaldi@...alhost:/usr/src/linux-source-4.9$

Jul 23 16:43:36 localhost NetworkManager[639]: <info> [1500821016.5118] 
device (wlxc83a35c04107): Activation: starting connection 'WiMORE' 
(b1b43248-9501-4ebb-a4bc-694296920648) Jul 23 16:43:36 localhost 
NetworkManager[639]: <info> [1500821016.5121] audit: 
op="connection-activate" uuid="b1b43248-9501-4ebb-a4bc-694296920648" 
name="WiMORE" pid=20224 uid=1000 result="success" Jul 23 16:43:36 
localhost NetworkManager[639]: <info> [1500821016.5125] device 
(wlxc83a35c04107): state change: disconnected -> prepare (reason 'none') 
[30 40 0] Jul 23 16:43:36 localhost NetworkManager[639]: <info> 
[1500821016.9275] device (wlxc83a35c04107): set-hw-addr: reset MAC 
address to C8:3A:35:C0:41:07 (preserve) Jul 23 16:43:37 localhost 
kernel: [ 8013.517100] IPv6: ADDRCONF(NETDEV_UP): wlxc83a35c04107: link 
is not ready Jul 23 16:43:37 localhost NetworkManager[639]: <info> 
[1500821017.2674] device (wlxc83a35c04107): state change: prepare -> 
config (reason 'none') [40 50 0] Jul 23 16:43:37 localhost 
NetworkManager[639]: <info> [1500821017.2677] device (wlxc83a35c04107): 
Activation: (wifi) access point 'WiMORE' has security, but secrets are 
required. Jul 23 16:43:37 localhost NetworkManager[639]: <info> 
[1500821017.2677] device (wlxc83a35c04107): state change: config -> 
need-auth (reason 'none') [50 60 0] Jul 23 16:43:37 localhost 
NetworkManager[639]: <info> [1500821017.2929] device (wlxc83a35c04107): 
state change: need-auth -> prepare (reason 'none') [60 40 0] Jul 23 
16:43:37 localhost NetworkManager[639]: <info> [1500821017.2933] device 
(wlxc83a35c04107): state change: prepare -> config (reason 'none') [40 
50 0] Jul 23 16:43:37 localhost NetworkManager[639]: <info> 
[1500821017.2936] device (wlxc83a35c04107): Activation: (wifi) 
connection 'WiMORE' has security, and secrets exist. No new secrets 
needed. Jul 23 16:43:37 localhost NetworkManager[639]: <info> 
[1500821017.2937] Config: added 'ssid' value 'WiMORE' Jul 23 16:43:37 
localhost NetworkManager[639]: <info> [1500821017.2937] Config: added 
'scan_ssid' value '1' Jul 23 16:43:37 localhost NetworkManager[639]: 
<info> [1500821017.2938] Config: added 'key_mgmt' value 'WPA-PSK' Jul 23 
16:43:37 localhost NetworkManager[639]: <info> [1500821017.2938] Config: 
added 'auth_alg' value 'OPEN' Jul 23 16:43:37 localhost 
NetworkManager[639]: <info> [1500821017.2938] Config: added 'psk' value 
'<hidden>' Jul 23 16:43:37 localhost wpa_supplicant[745]: 
wlxc83a35c04107: SME: Trying to authenticate with 14:91:82:69:22:aa 
(SSID='WiMORE' freq=2412 MHz) Jul 23 16:43:37 localhost kernel: [ 
8013.558674] wlxc83a35c04107: authenticate with 14:91:82:69:22:aa Jul 23 
16:43:37 localhost NetworkManager[639]: <info> [1500821017.3438] device 
(wlxc83a35c04107): supplicant interface state: inactive -> 
authenticating Jul 23 16:43:37 localhost kernel: [ 8013.594741] 
wlxc83a35c04107: send auth to 14:91:82:69:22:aa (try 1/3) Jul 23 
16:43:37 localhost kernel: [ 8013.801315] wlxc83a35c04107: send auth to 
14:91:82:69:22:aa (try 2/3) Jul 23 16:43:37 localhost kernel: [ 
8013.802870] wlxc83a35c04107: authenticated Jul 23 16:43:42 localhost 
wpa_supplicant[745]: wlxc83a35c04107: SME: Deauth request to the driver 
failed Jul 23 16:43:42 localhost wpa_supplicant[745]: wlxc83a35c04107: 
CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="WiMORE" auth_failures=1 
duration=10 reason=CONN_FAILED Jul 23 16:43:42 localhost 
NetworkManager[639]: <info> [1500821022.3522] device (wlxc83a35c04107): 
supplicant interface state: authenticating -> disconnected Jul 23 
16:43:52 localhost NetworkManager[639]: <info> [1500821032.3553] device 
(wlxc83a35c04107): supplicant interface state: disconnected -> scanning 
Jul 23 16:43:53 localhost wpa_supplicant[745]: wlxc83a35c04107: 
CTRL-EVENT-SSID-REENABLED id=0 ssid="WiMORE" Jul 23 16:43:53 localhost 
kernel: [ 8030.117727] wlxc83a35c04107: authenticate with 
14:91:82:69:22:aa Jul 23 16:43:53 localhost wpa_supplicant[745]: 
wlxc83a35c04107: SME: Trying to authenticate with 14:91:82:69:22:aa 
(SSID='WiMORE' freq=2412 MHz) Jul 23 16:43:53 localhost 
NetworkManager[639]: <info> [1500821033.9327] device (wlxc83a35c04107): 
supplicant interface state: scanning -> authenticating Jul 23 16:43:53 
localhost kernel: [ 8030.183868] wlxc83a35c04107: send auth to 
14:91:82:69:22:aa (try 1/3) Jul 23 16:43:53 localhost kernel: [ 
8030.185392] wlxc83a35c04107: authenticated Jul 23 16:43:58 localhost 
wpa_supplicant[745]: wlxc83a35c04107: SME: Deauth request to the driver 
failed Jul 23 16:43:58 localhost wpa_supplicant[745]: wlxc83a35c04107: 
CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="WiMORE" auth_failures=2 
duration=20 reason=CONN_FAILED Jul 23 16:43:58 localhost 
NetworkManager[639]: <info> [1500821038.9425] device (wlxc83a35c04107): 
supplicant interface state: authenticating -> disconnected


the patch

static int ieee80211_auth(struct ieee80211_sub_if_data *sdata) {
struct ieee80211_local *local = sdata->local; struct 
ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct 
ieee80211_mgd_auth_data *auth_data = ifmgd->auth_data; u32 tx_flags = 0; 
u16 trans = 1; u16 status = 0; sdata_assert_lock(sdata); if 
(WARN_ON_ONCE(!auth_data)) return -EINVAL; auth_data->tries++; if 
(auth_data->tries > IEEE80211_AUTH_MAX_TRIES) { sdata_info(sdata, 
"authentication with %pM timed out\n", auth_data->bss->bssid); /* * Most 
likely AP is not in the range so remove the * bss struct for that AP. */ 
cfg80211_unlink_bss(local->hw.wiphy, auth_data->bss); return -ETIMEDOUT; 
} drv_mgd_prepare_tx(local, sdata); sdata_info(sdata, "send auth to %pM 
(try %d/%d)\n", auth_data->bss->bssid, auth_data->tries, 
IEEE80211_AUTH_MAX_TRIES); auth_data->expected_transaction = 2; if 
(auth_data->algorithm == WLAN_AUTH_SAE) { trans = auth_data->sae_trans; 
status = auth_data->sae_status; auth_data->expected_transaction = trans; 
} if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) tx_flags = 
IEEE80211_TX_CTL_REQ_TX_STATUS | (IEEE80211_TX_INTFL_MLME_CONN_TX && 
(!(IEEE80211_TX_CTL_REQ_TX_STATUS))); ieee80211_send_auth(sdata, trans, 
auth_data->algorithm, status, auth_data->data, auth_data->data_len, 
auth_data->bss->bssid, auth_data->bss->bssid, NULL, 0, 0, tx_flags); if 
(tx_flags == 0) { auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT; 
auth_data->timeout_started = true; run_again(sdata, auth_data->timeout); 
} else { auth_data->timeout = round_jiffies_up(jiffies + 
IEEE80211_AUTH_TIMEOUT_LONG); auth_data->timeout_started = true; 
run_again(sdata, auth_data->timeout); } return 0; }

static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata) {


the final compilation result

tibaldi@...alhost:~$ cd /usr/src/linux-source-4.9/
tibaldi@...alhost:/usr/src/linux-source-4.9$ make -j 2
CHK include/config/kernel.release
CHK include/generated/uapi/linux/version.h
CHK include/generated/package.h
CHK include/generated/utsrelease.h
CHK include/generated/timeconst.h
CHK include/generated/bounds.h
CHK include/generated/asm-offsets.h
CALL scripts/checksyscalls.sh
CHK include/generated/compile.h
CC [M] net/mac80211/mlme.o
LD [M] net/mac80211/mac80211.o
Building modules, stage 2.
DATAREL arch/x86/boot/compressed/vmlinux
Kernel: arch/x86/boot/bzImage is ready (#1)
MODPOST 3381 modules
LD [M] net/mac80211/mac80211.ko
tibaldi@...alhost:/usr/src/linux-source-4.9$


Amos Tibaldi - tibaldi.amos@...il.com - www.amostibaldi.it

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