diff options
| author | Aloka Dixit <alokad@codeaurora.org> | 2020-09-11 00:33:01 +0000 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2020-09-18 14:06:20 +0200 |
| commit | 632189a0180fdaae6715c83c68cc5c8998d6c841 (patch) | |
| tree | a5f398028e79b26e32a5101bf4ce943a648c3249 /net/mac80211/cfg.c | |
| parent | 7443dcd1f1718a355e9c4ebeb7e95c3f9f27bb5f (diff) | |
mac80211: Unsolicited broadcast probe response support
This patch adds mac80211 support to configure unsolicited
broadcast probe response transmission for in-band discovery in 6GHz.
Changes include functions to store and retrieve probe response template,
and packet interval (0 - 20 TUs).
Setting interval to 0 disables the unsolicited broadcast probe response
transmission.
Signed-off-by: Aloka Dixit <alokad@codeaurora.org>
Link: https://lore.kernel.org/r/010101747a946b35-ad25858a-1f1f-48df-909e-dc7bf26d9169-000000@us-west-2.amazonses.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/cfg.c')
| -rw-r--r-- | net/mac80211/cfg.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index fa35ae84facc..8d75a4045d6e 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -864,6 +864,32 @@ static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, return 0; } +static int +ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, + struct cfg80211_unsol_bcast_probe_resp *params) +{ + struct unsol_bcast_probe_resp_data *new, *old = NULL; + + if (!params->tmpl || !params->tmpl_len) + return -EINVAL; + + old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata); + new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); + if (!new) + return -ENOMEM; + new->len = params->tmpl_len; + memcpy(new->data, params->tmpl, params->tmpl_len); + rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new); + + if (old) + kfree_rcu(old, rcu_head); + + sdata->vif.bss_conf.unsol_bcast_probe_resp_interval = + params->interval; + + return 0; +} + static int ieee80211_set_ftm_responder_params( struct ieee80211_sub_if_data *sdata, const u8 *lci, size_t lci_len, @@ -1138,6 +1164,14 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, changed |= BSS_CHANGED_FILS_DISCOVERY; } + if (params->unsol_bcast_probe_resp.interval) { + err = ieee80211_set_unsol_bcast_probe_resp(sdata, + ¶ms->unsol_bcast_probe_resp); + if (err < 0) + goto error; + changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; + } + err = drv_start_ap(sdata->local, sdata); if (err) { old = sdata_dereference(sdata->u.ap.beacon, sdata); @@ -1197,6 +1231,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) struct beacon_data *old_beacon; struct probe_resp *old_probe_resp; struct fils_discovery_data *old_fils_discovery; + struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; struct cfg80211_chan_def chandef; sdata_assert_lock(sdata); @@ -1207,6 +1242,9 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery, sdata); + old_unsol_bcast_probe_resp = + sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, + sdata); /* abort any running channel switch */ mutex_lock(&local->mtx); @@ -1231,11 +1269,14 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL); + RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL); kfree_rcu(old_beacon, rcu_head); if (old_probe_resp) kfree_rcu(old_probe_resp, rcu_head); if (old_fils_discovery) kfree_rcu(old_fils_discovery, rcu_head); + if (old_unsol_bcast_probe_resp) + kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); kfree(sdata->vif.bss_conf.ftmr_params); sdata->vif.bss_conf.ftmr_params = NULL; |