From 3bb02143ff55fec55558da4ad48425bf368eb8ed Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Sun, 6 Dec 2020 14:54:42 +0200 Subject: cfg80211: support immediate reconnect request hint There are cases where it's necessary to disconnect, but an immediate reconnection is desired. Support a hint to userspace that this is the case, by including a new attribute in the deauth or disassoc event. Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20201206145305.58d33941fb9d.I0e7168c205c7949529c8e3b86f3c9b12c01a7017@changeid Signed-off-by: Johannes Berg --- net/wireless/mlme.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) (limited to 'net/wireless/mlme.c') diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c index 0ac820780437..e1e90761dc00 100644 --- a/net/wireless/mlme.c +++ b/net/wireless/mlme.c @@ -4,7 +4,7 @@ * * Copyright (c) 2009, Jouni Malinen * Copyright (c) 2015 Intel Deutschland GmbH - * Copyright (C) 2019 Intel Corporation + * Copyright (C) 2019-2020 Intel Corporation */ #include @@ -81,7 +81,8 @@ static void cfg80211_process_auth(struct wireless_dev *wdev, } static void cfg80211_process_deauth(struct wireless_dev *wdev, - const u8 *buf, size_t len) + const u8 *buf, size_t len, + bool reconnect) { struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; @@ -89,7 +90,7 @@ static void cfg80211_process_deauth(struct wireless_dev *wdev, u16 reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); bool from_ap = !ether_addr_equal(mgmt->sa, wdev->netdev->dev_addr); - nl80211_send_deauth(rdev, wdev->netdev, buf, len, GFP_KERNEL); + nl80211_send_deauth(rdev, wdev->netdev, buf, len, reconnect, GFP_KERNEL); if (!wdev->current_bss || !ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) @@ -100,7 +101,8 @@ static void cfg80211_process_deauth(struct wireless_dev *wdev, } static void cfg80211_process_disassoc(struct wireless_dev *wdev, - const u8 *buf, size_t len) + const u8 *buf, size_t len, + bool reconnect) { struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; @@ -108,7 +110,8 @@ static void cfg80211_process_disassoc(struct wireless_dev *wdev, u16 reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); bool from_ap = !ether_addr_equal(mgmt->sa, wdev->netdev->dev_addr); - nl80211_send_disassoc(rdev, wdev->netdev, buf, len, GFP_KERNEL); + nl80211_send_disassoc(rdev, wdev->netdev, buf, len, reconnect, + GFP_KERNEL); if (WARN_ON(!wdev->current_bss || !ether_addr_equal(wdev->current_bss->pub.bssid, bssid))) @@ -133,9 +136,9 @@ void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len) if (ieee80211_is_auth(mgmt->frame_control)) cfg80211_process_auth(wdev, buf, len); else if (ieee80211_is_deauth(mgmt->frame_control)) - cfg80211_process_deauth(wdev, buf, len); + cfg80211_process_deauth(wdev, buf, len, false); else if (ieee80211_is_disassoc(mgmt->frame_control)) - cfg80211_process_disassoc(wdev, buf, len); + cfg80211_process_disassoc(wdev, buf, len, false); } EXPORT_SYMBOL(cfg80211_rx_mlme_mgmt); @@ -180,22 +183,23 @@ void cfg80211_abandon_assoc(struct net_device *dev, struct cfg80211_bss *bss) } EXPORT_SYMBOL(cfg80211_abandon_assoc); -void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len) +void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len, + bool reconnect) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct ieee80211_mgmt *mgmt = (void *)buf; ASSERT_WDEV_LOCK(wdev); - trace_cfg80211_tx_mlme_mgmt(dev, buf, len); + trace_cfg80211_tx_mlme_mgmt(dev, buf, len, reconnect); if (WARN_ON(len < 2)) return; if (ieee80211_is_deauth(mgmt->frame_control)) - cfg80211_process_deauth(wdev, buf, len); + cfg80211_process_deauth(wdev, buf, len, reconnect); else - cfg80211_process_disassoc(wdev, buf, len); + cfg80211_process_disassoc(wdev, buf, len, reconnect); } EXPORT_SYMBOL(cfg80211_tx_mlme_mgmt); -- cgit v1.2.3