To allow steering daemons to be aware of the STA-decided transition
target, publish WNM transition responses to ubus. This way, steerings
daemons can learn about STA-chosen targets and send a better selection
of transition candidates.
Signed-off-by: David Bauer <m...@david-bauer.net>
---
.../hostapd/patches/600-ubus_support.patch | 30 +++++++++++++++++
.../services/hostapd/src/src/ap/ubus.c | 33 +++++++++++++++++++
.../services/hostapd/src/src/ap/ubus.h | 11 +++++++
3 files changed, 74 insertions(+)
diff --git a/package/network/services/hostapd/patches/600-ubus_support.patch
b/package/network/services/hostapd/patches/600-ubus_support.patch
index 005ed54e0c..d77d245243 100644
--- a/package/network/services/hostapd/patches/600-ubus_support.patch
+++ b/package/network/services/hostapd/patches/600-ubus_support.patch
@@ -514,3 +514,33 @@
struct os_reltime backlogged_until;
#endif /* CONFIG_AIRTIME_POLICY */
+--- a/src/ap/wnm_ap.c
++++ b/src/ap/wnm_ap.c
+@@ -463,7 +463,7 @@ static void ieee802_11_rx_bss_trans_mgmt
+ size_t len)
+ {
+ u8 dialog_token, status_code, bss_termination_delay;
+- const u8 *pos, *end;
++ const u8 *pos, *end, *target_bssid;
+ int enabled = hapd->conf->bss_transition;
+ struct sta_info *sta;
+
+@@ -510,6 +510,7 @@ static void ieee802_11_rx_bss_trans_mgmt
+ wpa_printf(MSG_DEBUG, "WNM: not enough room for Target
BSSID field");
+ return;
+ }
++ target_bssid = pos;
+ sta->agreed_to_steer = 1;
+ eloop_cancel_timeout(ap_sta_reset_steer_flag_timer, hapd, sta);
+ eloop_register_timeout(2, 0, ap_sta_reset_steer_flag_timer,
+@@ -529,6 +530,10 @@ static void ieee802_11_rx_bss_trans_mgmt
+ MAC2STR(addr), status_code, bss_termination_delay);
+ }
+
++ hostapd_ubus_notify_bss_transition_response(hapd, sta->addr,
dialog_token,
++ status_code,
bss_termination_delay,
++ target_bssid, pos, end -
pos);
++
+ wpa_hexdump(MSG_DEBUG, "WNM: BSS Transition Candidate List Entries",
+ pos, end - pos);
+ }
diff --git a/package/network/services/hostapd/src/src/ap/ubus.c
b/package/network/services/hostapd/src/src/ap/ubus.c
index 367e1b652b..30bb353953 100644
--- a/package/network/services/hostapd/src/src/ap/ubus.c
+++ b/package/network/services/hostapd/src/src/ap/ubus.c
@@ -1757,3 +1757,36 @@ void hostapd_ubus_notify_radar_detected(struct
hostapd_iface *iface, int frequen
ubus_notify(ctx, &hapd->ubus.obj, "radar-detected", b.head, -1);
}
}
+
+void hostapd_ubus_notify_bss_transition_response(
+ struct hostapd_data *hapd, const u8 *addr, u8 dialog_token, u8
status_code,
+ u8 bss_termination_delay, const u8 *target_bssid,
+ const u8 *candidate_list, u16 candidate_list_len)
+{
+#ifdef CONFIG_WNM_AP
+ char *cl_str;
+ u16 i;
+
+ if (!hapd->ubus.obj.has_subscribers)
+ return;
+
+ if (!addr)
+ return;
+
+ blob_buf_init(&b, 0);
+ blobmsg_add_macaddr(&b, "address", addr);
+ blobmsg_add_u8(&b, "dialog-token", dialog_token);
+ blobmsg_add_u8(&b, "status-code", status_code);
+ blobmsg_add_u8(&b, "bss-termination-delay", bss_termination_delay);
+ if (target_bssid)
+ blobmsg_add_macaddr(&b, "target-bssid", target_bssid);
+ if (candidate_list_len > 0) {
+ cl_str = blobmsg_alloc_string_buffer(&b, "candidate-list",
candidate_list_len * 2 + 1);
+ for (i = 0; i < candidate_list_len; i++)
+ snprintf(&cl_str[i*2], 3, "%02X", candidate_list[i]);
+ blobmsg_add_string_buffer(&b);
+ }
+
+ ubus_notify(ctx, &hapd->ubus.obj, "bss-transition-response", b.head,
-1);
+#endif
+}
diff --git a/package/network/services/hostapd/src/src/ap/ubus.h
b/package/network/services/hostapd/src/src/ap/ubus.h
index acdac74360..899b001dd5 100644
--- a/package/network/services/hostapd/src/src/ap/ubus.h
+++ b/package/network/services/hostapd/src/src/ap/ubus.h
@@ -55,6 +55,10 @@ void hostapd_ubus_notify_beacon_report(struct hostapd_data
*hapd,
void hostapd_ubus_notify_radar_detected(struct hostapd_iface *iface, int
frequency,
int chan_width, int cf1, int cf2);
+void hostapd_ubus_notify_bss_transition_response(
+ struct hostapd_data *hapd, const u8 *addr, u8 dialog_token, u8
status_code,
+ u8 bss_termination_delay, const u8 *target_bssid,
+ const u8 *candidate_list, u16 candidate_list_len);
void hostapd_ubus_add(struct hapd_interfaces *interfaces);
void hostapd_ubus_free(struct hapd_interfaces *interfaces);
@@ -107,6 +111,13 @@ static inline void
hostapd_ubus_notify_radar_detected(struct hostapd_iface *ifac
{
}
+static inline void hostapd_ubus_notify_bss_transition_response(
+ struct hostapd_data *hapd, const u8 *addr, u8 dialog_token, u8
status_code,
+ u8 bss_termination_delay, const u8 *target_bssid,
+ const u8 *candidate_list, u16 candidate_list_len)
+{
+}
+
static inline void hostapd_ubus_add(struct hapd_interfaces *interfaces)
{
}
--
2.33.0
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