From: Dmitry Lebed <dlebed@xxxxxxxxxxxxx>
Add NL80211_FREQUENCY_ATTR_NO_* channel attributes parsing.
Needed for correct checking if channel is available in
particular BW.
Signed-off-by: Dmitry Lebed <dlebed@xxxxxxxxxxxxx>
---
src/ap/dfs.c | 1 -
src/drivers/driver.h | 20 ++++++++++++++++++++
src/drivers/driver_nl80211_capa.c | 20 ++++++++++++++++++++
3 files changed, 40 insertions(+), 1 deletion(-)
diff --git a/src/ap/dfs.c b/src/ap/dfs.c
index f1476eee0..8c56cbb96 100644
--- a/src/ap/dfs.c
+++ b/src/ap/dfs.c
@@ -172,7 +172,6 @@ static int is_in_chanlist(struct hostapd_iface *iface,
return freq_range_list_includes(&iface->conf->acs_ch_list, chan->chan);
}
-
/*
* The function assumes HT40+ operation.
* Make sure to adjust the following variables after calling this:
diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index 92a58b2f2..37a31d3bc 100644
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -58,6 +58,20 @@
#define HOSTAPD_CHAN_VHT_130_30 0x04000000
#define HOSTAPD_CHAN_VHT_150_10 0x08000000
+/* Allowed BW mask */
+enum hostapd_chan_width_attr {
+ HOSTAPD_CHAN_WIDTH_10 = BIT(0),
+ HOSTAPD_CHAN_WIDTH_20 = BIT(1),
+ HOSTAPD_CHAN_WIDTH_40P = BIT(2),
+ HOSTAPD_CHAN_WIDTH_40M = BIT(3),
+ HOSTAPD_CHAN_WIDTH_80 = BIT(4),
+ HOSTAPD_CHAN_WIDTH_160 = BIT(5),
+
+ /* all new elements goes before this line */
+ __HOSTAPD_CHAN_WIDTH_AFTER_LAST,
+ HOSTAPD_CHAN_WIDTH_ALL = __HOSTAPD_CHAN_WIDTH_AFTER_LAST - 2
+};
+
/* Filter gratuitous ARP */
#define WPA_DATA_FRAME_FILTER_FLAG_ARP BIT(0)
/* Filter unsolicited Neighbor Advertisement */
@@ -110,6 +124,12 @@ struct hostapd_channel_data {
*/
int flag;
+ /**
+ * allowed_bw - allowed channel width bitmask
+ * see enum hostapd_chan_width_attr
+ */
+ u32 allowed_bw;
+
/**
* max_tx_power - Regulatory transmit power limit in dBm
*/
diff --git a/src/drivers/driver_nl80211_capa.c b/src/drivers/driver_nl80211_capa.c
index e5bc7693b..ea6139c87 100644
--- a/src/drivers/driver_nl80211_capa.c
+++ b/src/drivers/driver_nl80211_capa.c
@@ -1286,6 +1286,7 @@ static void phy_info_freq(struct hostapd_hw_modes *mode,
u8 channel;
chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
chan->flag = 0;
+ chan->allowed_bw = HOSTAPD_CHAN_WIDTH_ALL;
chan->dfs_cac_ms = 0;
if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
chan->chan = channel;
@@ -1301,6 +1302,19 @@ static void phy_info_freq(struct hostapd_hw_modes *mode,
if (tb_freq[NL80211_FREQUENCY_ATTR_GO_CONCURRENT])
chan->flag |= HOSTAPD_CHAN_GO_CONCURRENT;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_NO_10MHZ])
+ chan->allowed_bw &= ~HOSTAPD_CHAN_WIDTH_10;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_NO_20MHZ])
+ chan->allowed_bw &= ~HOSTAPD_CHAN_WIDTH_20;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_NO_HT40_PLUS])
+ chan->allowed_bw &= ~HOSTAPD_CHAN_WIDTH_40P;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_NO_HT40_MINUS])
+ chan->allowed_bw &= ~HOSTAPD_CHAN_WIDTH_40M;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_NO_80MHZ])
+ chan->allowed_bw &= ~HOSTAPD_CHAN_WIDTH_80;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_NO_160MHZ])
+ chan->allowed_bw &= ~HOSTAPD_CHAN_WIDTH_160;
+
if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
enum nl80211_dfs_state state =
nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
@@ -1335,6 +1349,12 @@ static int phy_info_freqs(struct phy_info_arg *phy_info,
[NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
[NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
+ [NL80211_FREQUENCY_ATTR_NO_10MHZ] = { .type = NLA_FLAG },
+ [NL80211_FREQUENCY_ATTR_NO_20MHZ] = { .type = NLA_FLAG },
+ [NL80211_FREQUENCY_ATTR_NO_HT40_PLUS] = { .type = NLA_FLAG },
+ [NL80211_FREQUENCY_ATTR_NO_HT40_MINUS] = { .type = NLA_FLAG },
+ [NL80211_FREQUENCY_ATTR_NO_80MHZ] = { .type = NLA_FLAG },
+ [NL80211_FREQUENCY_ATTR_NO_160MHZ] = { .type = NLA_FLAG },
};
int new_channels = 0;
struct hostapd_channel_data *channel;
--
2.16.1
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