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authorThomas Pedersen <thomas@adapt-ip.com>2020-09-22 05:28:07 +0300
committerJohannes Berg <johannes.berg@intel.com>2020-09-28 14:53:05 +0300
commit66b0564d7e757a193b6f8c925ae30997814fc026 (patch)
tree1692ac83d74ff592bbcd8c2e4d7aa9ccea09c79b /net/wireless/scan.c
parent9eaffe5078ca0808603cdd15c4eaf0106a996f3a (diff)
downloadlinux-66b0564d7e757a193b6f8c925ae30997814fc026.tar.xz
cfg80211: parse S1G Operation element for BSS channel
Extract the BSS primary channel from the S1G Operation element. Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com> Link: https://lore.kernel.org/r/20200922022818.15855-7-thomas@adapt-ip.com [remove the goto bits] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/scan.c')
-rw-r--r--net/wireless/scan.c23
1 files changed, 16 insertions, 7 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 777df5751285..8d0e49c46db3 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -1802,15 +1802,24 @@ cfg80211_get_bss_channel(struct wiphy *wiphy, const u8 *ie, size_t ielen,
int channel_number = -1;
struct ieee80211_channel *alt_channel;
- tmp = cfg80211_find_ie(WLAN_EID_DS_PARAMS, ie, ielen);
- if (tmp && tmp[1] == 1) {
- channel_number = tmp[2];
+ if (channel->band == NL80211_BAND_S1GHZ) {
+ tmp = cfg80211_find_ie(WLAN_EID_S1G_OPERATION, ie, ielen);
+ if (tmp && tmp[1] >= sizeof(struct ieee80211_s1g_oper_ie)) {
+ struct ieee80211_s1g_oper_ie *s1gop = (void *)(tmp + 2);
+
+ channel_number = s1gop->primary_ch;
+ }
} else {
- tmp = cfg80211_find_ie(WLAN_EID_HT_OPERATION, ie, ielen);
- if (tmp && tmp[1] >= sizeof(struct ieee80211_ht_operation)) {
- struct ieee80211_ht_operation *htop = (void *)(tmp + 2);
+ tmp = cfg80211_find_ie(WLAN_EID_DS_PARAMS, ie, ielen);
+ if (tmp && tmp[1] == 1) {
+ channel_number = tmp[2];
+ } else {
+ tmp = cfg80211_find_ie(WLAN_EID_HT_OPERATION, ie, ielen);
+ if (tmp && tmp[1] >= sizeof(struct ieee80211_ht_operation)) {
+ struct ieee80211_ht_operation *htop = (void *)(tmp + 2);
- channel_number = htop->primary_chan;
+ channel_number = htop->primary_chan;
+ }
}
}