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wpa_supplicant: Notify freq change on CH_SWITCH

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wpa_supplicant does not send a D-Bus notification of the BSS frequency
change when a CSA happens. Sending a PropertyChanged signal with the
updated frequency will notify the network manager quickly, instead of
waiting for the next scan results.

Signed-off-by: Arowa Suliman <arowa@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
This commit is contained in:
Arowa Suliman 2020-11-03 11:20:01 -08:00 committed by Jouni Malinen
parent a033e886b2
commit b829b7003a
3 changed files with 20 additions and 14 deletions
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16
wpa_supplicant/bss.c
View file

@ -19,18 +19,6 @@
#include "scan.h"
#include "bss.h"
#define WPA_BSS_FREQ_CHANGED_FLAG BIT(0)
#define WPA_BSS_SIGNAL_CHANGED_FLAG BIT(1)
#define WPA_BSS_PRIVACY_CHANGED_FLAG BIT(2)
#define WPA_BSS_MODE_CHANGED_FLAG BIT(3)
#define WPA_BSS_WPAIE_CHANGED_FLAG BIT(4)
#define WPA_BSS_RSNIE_CHANGED_FLAG BIT(5)
#define WPA_BSS_WPS_CHANGED_FLAG BIT(6)
#define WPA_BSS_RATES_CHANGED_FLAG BIT(7)
#define WPA_BSS_IES_CHANGED_FLAG BIT(8)
static void wpa_bss_set_hessid(struct wpa_bss *bss)
{
#ifdef CONFIG_INTERWORKING
@ -588,8 +576,8 @@ static u32 wpa_bss_compare_res(const struct wpa_bss *old,
}
static void notify_bss_changes(struct wpa_supplicant *wpa_s, u32 changes,
const struct wpa_bss *bss)
void notify_bss_changes(struct wpa_supplicant *wpa_s, u32 changes,
const struct wpa_bss *bss)
{
if (changes & WPA_BSS_FREQ_CHANGED_FLAG)
wpas_notify_bss_freq_changed(wpa_s, bss->id);

12
wpa_supplicant/bss.h
View file

@ -20,6 +20,16 @@ struct wpa_scan_res;
#define WPA_BSS_ANQP_FETCH_TRIED BIT(6)
#define WPA_BSS_OWE_TRANSITION BIT(7)
#define WPA_BSS_FREQ_CHANGED_FLAG BIT(0)
#define WPA_BSS_SIGNAL_CHANGED_FLAG BIT(1)
#define WPA_BSS_PRIVACY_CHANGED_FLAG BIT(2)
#define WPA_BSS_MODE_CHANGED_FLAG BIT(3)
#define WPA_BSS_WPAIE_CHANGED_FLAG BIT(4)
#define WPA_BSS_RSNIE_CHANGED_FLAG BIT(5)
#define WPA_BSS_WPS_CHANGED_FLAG BIT(6)
#define WPA_BSS_RATES_CHANGED_FLAG BIT(7)
#define WPA_BSS_IES_CHANGED_FLAG BIT(8)
struct wpa_bss_anqp_elem {
struct dl_list list;
u16 infoid;
@ -120,6 +130,8 @@ static inline const u8 * wpa_bss_ie_ptr(const struct wpa_bss *bss)
return bss->ies;
}
void notify_bss_changes(struct wpa_supplicant *wpa_s, u32 changes,
const struct wpa_bss *bss);
void wpa_bss_update_start(struct wpa_supplicant *wpa_s);
void wpa_bss_update_scan_res(struct wpa_supplicant *wpa_s,
struct wpa_scan_res *res,

6
wpa_supplicant/events.c
View file

@ -4986,6 +4986,12 @@ void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
wpa_s->assoc_freq = data->ch_switch.freq;
wpa_s->current_ssid->frequency = data->ch_switch.freq;
if (wpa_s->current_bss &&
wpa_s->current_bss->freq != data->ch_switch.freq) {
wpa_s->current_bss->freq = data->ch_switch.freq;
notify_bss_changes(wpa_s, WPA_BSS_FREQ_CHANGED_FLAG,
wpa_s->current_bss);
}
#ifdef CONFIG_SME
switch (data->ch_switch.ch_offset) {