diff options
| author | Arik Nemtsov <arik@wizery.com> | 2011-11-10 11:28:57 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-11-11 12:32:51 -0500 |
| commit | 029458212604570eec4789049a8a74428484dbb4 (patch) | |
| tree | cabbe65d50e83498300a25b02a67f8475c02c3b7 /net/mac80211/cfg.c | |
| parent | 00f740e1a3b7abb51980371ee8fa113df22ae0b8 (diff) | |
| download | lwn-029458212604570eec4789049a8a74428484dbb4.tar.gz lwn-029458212604570eec4789049a8a74428484dbb4.zip | |
mac80211: Save probe response data for bss
Allow setting a probe response template for an interface operating in
AP mode. Low level drivers are notified about changes in the probe
response template and are able to retrieve a copy of the current probe
response. This data can, for example, be uploaded to hardware as a
template.
Signed-off-by: Guy Eilam <guy@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/cfg.c')
| -rw-r--r-- | net/mac80211/cfg.c | 38 |
1 files changed, 35 insertions, 3 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 192f213cf43e..c2416fbd1b27 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -491,6 +491,31 @@ static void ieee80211_config_ap_ssid(struct ieee80211_sub_if_data *sdata, (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); } +static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, + u8 *resp, size_t resp_len) +{ + struct sk_buff *new, *old; + + if (!resp || !resp_len) + return -EINVAL; + + old = sdata->u.ap.probe_resp; + + new = dev_alloc_skb(resp_len); + if (!new) + return -ENOMEM; + + memcpy(skb_put(new, resp_len), resp, resp_len); + + rcu_assign_pointer(sdata->u.ap.probe_resp, new); + synchronize_rcu(); + + if (old) + dev_kfree_skb(old); + + return 0; +} + /* * This handles both adding a beacon and setting new beacon info */ @@ -501,6 +526,7 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata, int new_head_len, new_tail_len; int size; int err = -EINVAL; + u32 changed = 0; old = rtnl_dereference(sdata->u.ap.beacon); @@ -584,11 +610,17 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata, kfree(old); + err = ieee80211_set_probe_resp(sdata, params->probe_resp, + params->probe_resp_len); + if (!err) + changed |= BSS_CHANGED_AP_PROBE_RESP; + ieee80211_config_ap_ssid(sdata, params); + changed |= BSS_CHANGED_BEACON_ENABLED | + BSS_CHANGED_BEACON | + BSS_CHANGED_SSID; - ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED | - BSS_CHANGED_BEACON | - BSS_CHANGED_SSID); + ieee80211_bss_info_change_notify(sdata, changed); return 0; } |