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authorJohannes Berg <johannes.berg@intel.com>2020-12-06 15:54:42 +0300
committerJohannes Berg <johannes.berg@intel.com>2020-12-11 15:20:05 +0300
commit3bb02143ff55fec55558da4ad48425bf368eb8ed (patch)
tree7364736e22cddf7afc874844ea12d370dca6d2c7 /net/wireless/nl80211.c
parenta5a55032ea654e5fdd9255035bb5066c87d7b95e (diff)
downloadlinux-3bb02143ff55fec55558da4ad48425bf368eb8ed.tar.xz
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 <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20201206145305.58d33941fb9d.I0e7168c205c7949529c8e3b86f3c9b12c01a7017@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/nl80211.c')
-rw-r--r--net/wireless/nl80211.c23
1 files changed, 15 insertions, 8 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 910872974f2d..390e6e0f23ac 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -718,6 +718,7 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
[NL80211_ATTR_SAE_PWE] =
NLA_POLICY_RANGE(NLA_U8, NL80211_SAE_PWE_HUNT_AND_PECK,
NL80211_SAE_PWE_BOTH),
+ [NL80211_ATTR_RECONNECT_REQUESTED] = { .type = NLA_REJECT },
};
/* policy for the key attributes */
@@ -15855,7 +15856,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
const u8 *buf, size_t len,
enum nl80211_commands cmd, gfp_t gfp,
int uapsd_queues, const u8 *req_ies,
- size_t req_ies_len)
+ size_t req_ies_len, bool reconnect)
{
struct sk_buff *msg;
void *hdr;
@@ -15877,6 +15878,9 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
nla_put(msg, NL80211_ATTR_REQ_IE, req_ies_len, req_ies)))
goto nla_put_failure;
+ if (reconnect && nla_put_flag(msg, NL80211_ATTR_RECONNECT_REQUESTED))
+ goto nla_put_failure;
+
if (uapsd_queues >= 0) {
struct nlattr *nla_wmm =
nla_nest_start_noflag(msg, NL80211_ATTR_STA_WME);
@@ -15905,7 +15909,8 @@ void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
size_t len, gfp_t gfp)
{
nl80211_send_mlme_event(rdev, netdev, buf, len,
- NL80211_CMD_AUTHENTICATE, gfp, -1, NULL, 0);
+ NL80211_CMD_AUTHENTICATE, gfp, -1, NULL, 0,
+ false);
}
void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
@@ -15915,23 +15920,25 @@ void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
{
nl80211_send_mlme_event(rdev, netdev, buf, len,
NL80211_CMD_ASSOCIATE, gfp, uapsd_queues,
- req_ies, req_ies_len);
+ req_ies, req_ies_len, false);
}
void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
struct net_device *netdev, const u8 *buf,
- size_t len, gfp_t gfp)
+ size_t len, bool reconnect, gfp_t gfp)
{
nl80211_send_mlme_event(rdev, netdev, buf, len,
- NL80211_CMD_DEAUTHENTICATE, gfp, -1, NULL, 0);
+ NL80211_CMD_DEAUTHENTICATE, gfp, -1, NULL, 0,
+ reconnect);
}
void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
struct net_device *netdev, const u8 *buf,
- size_t len, gfp_t gfp)
+ size_t len, bool reconnect, gfp_t gfp)
{
nl80211_send_mlme_event(rdev, netdev, buf, len,
- NL80211_CMD_DISASSOCIATE, gfp, -1, NULL, 0);
+ NL80211_CMD_DISASSOCIATE, gfp, -1, NULL, 0,
+ reconnect);
}
void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
@@ -15962,7 +15969,7 @@ void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1,
- NULL, 0);
+ NULL, 0, false);
}
EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);