diff options
| author | Javier Cardona <javier@cozybit.com> | 2011-05-04 10:24:56 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-05-11 14:37:48 -0400 |
| commit | 0a35d36d6f019bde6c98812456798275b02e5aee (patch) | |
| tree | b2605d9a45226072c430d35f39f82082d99df8a8 /net/wireless | |
| parent | 915b5c50f8f45e78ea96d93f1e49edb20c9470bd (diff) | |
| download | linux-0a35d36d6f019bde6c98812456798275b02e5aee.tar.bz2 | |
cfg80211: Use capability info to detect mesh beacons.
Mesh beacons no longer use all-zeroes BSSID. Beacon frames for MBSS,
infrastructure BSS, or IBSS are differentiated by the Capability
Information field in the Beacon frame. A mesh STA sets the ESS and IBSS
subfields to 0 in transmitted Beacon or Probe Response management
frames.
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/scan.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c index fbf6f33ae4d0..62e542a2b192 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -210,7 +210,7 @@ static bool is_mesh(struct cfg80211_bss *a, { const u8 *ie; - if (!is_zero_ether_addr(a->bssid)) + if (!WLAN_CAPABILITY_IS_MBSS(a->capability)) return false; ie = cfg80211_find_ie(WLAN_EID_MESH_ID, @@ -248,11 +248,7 @@ static int cmp_bss(struct cfg80211_bss *a, if (a->channel != b->channel) return b->channel->center_freq - a->channel->center_freq; - r = memcmp(a->bssid, b->bssid, ETH_ALEN); - if (r) - return r; - - if (is_zero_ether_addr(a->bssid)) { + if (WLAN_CAPABILITY_IS_MBSS(a->capability | b->capability)) { r = cmp_ies(WLAN_EID_MESH_ID, a->information_elements, a->len_information_elements, @@ -267,6 +263,10 @@ static int cmp_bss(struct cfg80211_bss *a, b->len_information_elements); } + r = memcmp(a->bssid, b->bssid, ETH_ALEN); + if (r) + return r; + return cmp_ies(WLAN_EID_SSID, a->information_elements, a->len_information_elements, @@ -407,7 +407,7 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev, res->ts = jiffies; - if (is_zero_ether_addr(res->pub.bssid)) { + if (WLAN_CAPABILITY_IS_MBSS(res->pub.capability)) { /* must be mesh, verify */ meshid = cfg80211_find_ie(WLAN_EID_MESH_ID, res->pub.information_elements, |