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hostapd: add back support for passing CSA events from sta/mesh to AP interfaces 

Fixes handling CSA when using AP+STA or AP+Mesh
This change was accidentally dropped in commit 167028b75
("hostapd: Update to version 2.9 (2019-08-08)")

Signed-off-by: Felix Fietkau <nbd@nbd.name>
master
Felix Fietkau 2020-01-28 16:27:53 +01:00
parent ea5078014d
commit b3e86cbb4f
1 changed files with 129 additions and 0 deletions
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129
package/network/services/hostapd/patches/370-ap_sta_support.patch
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@ -272,3 +272,132 @@
hapd->beacon_set_done = 1;
if (ieee802_11_build_ap_params(hapd, &params) < 0)
--- a/wpa_supplicant/events.c
+++ b/wpa_supplicant/events.c
@@ -4184,6 +4184,60 @@ static void wpas_event_assoc_reject(stru
}
+static void
+supplicant_ch_switch_started(struct wpa_supplicant *wpa_s,
+ union wpa_event_data *data)
+{
+ char buf[256];
+ size_t len = sizeof(buf);
+ char *cmd = NULL;
+ int width = 20;
+ int ret;
+
+ if (!wpa_s->hostapd)
+ return;
+
+ wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CHANNEL_SWITCH
+ "count=%d freq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
+ data->ch_switch.count,
+ data->ch_switch.freq,
+ data->ch_switch.ht_enabled,
+ data->ch_switch.ch_offset,
+ channel_width_to_string(data->ch_switch.ch_width),
+ data->ch_switch.cf1,
+ data->ch_switch.cf2);
+
+ switch (data->ch_switch.ch_width) {
+ case CHAN_WIDTH_20_NOHT:
+ case CHAN_WIDTH_20:
+ width = 20;
+ break;
+ case CHAN_WIDTH_40:
+ width = 40;
+ break;
+ case CHAN_WIDTH_80:
+ width = 80;
+ break;
+ case CHAN_WIDTH_160:
+ case CHAN_WIDTH_80P80:
+ width = 160;
+ break;
+ }
+
+ asprintf(&cmd, "CHAN_SWITCH %d %d sec_channel_offset=%d center_freq1=%d center_freq2=%d, bandwidth=%d auto-ht\n",
+ data->ch_switch.count - 1,
+ data->ch_switch.freq,
+ data->ch_switch.ch_offset,
+ data->ch_switch.cf1,
+ data->ch_switch.cf2,
+ width);
+ ret = wpa_ctrl_request(wpa_s->hostapd, cmd, os_strlen(cmd), buf, &len, NULL);
+ free(cmd);
+
+ if (ret < 0)
+ wpa_printf(MSG_ERROR, "\nFailed to reload hostapd AP interfaces\n");
+}
+
void supplicant_event(void *ctx, enum wpa_event_type event,
union wpa_event_data *data)
{
@@ -4485,8 +4539,10 @@ void supplicant_event(void *ctx, enum wp
channel_width_to_string(data->ch_switch.ch_width),
data->ch_switch.cf1,
data->ch_switch.cf2);
- if (event == EVENT_CH_SWITCH_STARTED)
+ if (event == EVENT_CH_SWITCH_STARTED) {
+ supplicant_ch_switch_started(wpa_s, data);
break;
+ }
wpa_s->assoc_freq = data->ch_switch.freq;
wpa_s->current_ssid->frequency = data->ch_switch.freq;
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -5478,6 +5478,7 @@ union wpa_event_data {
/**
* struct ch_switch
+ * @count: Count until channel switch activates
* @freq: Frequency of new channel in MHz
* @ht_enabled: Whether this is an HT channel
* @ch_offset: Secondary channel offset
@@ -5486,6 +5487,7 @@ union wpa_event_data {
* @cf2: Center frequency 2
*/
struct ch_switch {
+ int count;
int freq;
int ht_enabled;
int ch_offset;
--- a/src/drivers/driver_nl80211_event.c
+++ b/src/drivers/driver_nl80211_event.c
@@ -536,7 +536,7 @@ static void mlme_event_ch_switch(struct
struct nlattr *ifindex, struct nlattr *freq,
struct nlattr *type, struct nlattr *bw,
struct nlattr *cf1, struct nlattr *cf2,
- int finished)
+ struct nlattr *count, int finished)
{
struct i802_bss *bss;
union wpa_event_data data;
@@ -595,6 +595,8 @@ static void mlme_event_ch_switch(struct
data.ch_switch.cf1 = nla_get_u32(cf1);
if (cf2)
data.ch_switch.cf2 = nla_get_u32(cf2);
+ if (count)
+ data.ch_switch.count = nla_get_u32(count);
if (finished)
bss->freq = data.ch_switch.freq;
@@ -2544,6 +2546,7 @@ static void do_process_drv_event(struct
tb[NL80211_ATTR_CHANNEL_WIDTH],
tb[NL80211_ATTR_CENTER_FREQ1],
tb[NL80211_ATTR_CENTER_FREQ2],
+ tb[NL80211_ATTR_CH_SWITCH_COUNT],
0);
break;
case NL80211_CMD_CH_SWITCH_NOTIFY:
@@ -2554,6 +2557,7 @@ static void do_process_drv_event(struct
tb[NL80211_ATTR_CHANNEL_WIDTH],
tb[NL80211_ATTR_CENTER_FREQ1],
tb[NL80211_ATTR_CENTER_FREQ2],
+ NULL,
1);
break;
case NL80211_CMD_DISCONNECT: