From: Avraham Stern <avraham.stern@xxxxxxxxx>
When rejecting a BSS transition request, add MBO IE to
the BSS transition response frame to specify the transition
rejection reason.
Signed-off-by: David Spinadel <david.spinadel@xxxxxxxxx>
Signed-off-by: Avraham Stern <avraham.stern@xxxxxxxxx>
---
wpa_supplicant/mbo.c | 16 ++++++++++++++++
wpa_supplicant/wnm_sta.c | 8 ++++++++
wpa_supplicant/wpa_supplicant_i.h | 3 +++
3 files changed, 27 insertions(+)
diff --git a/wpa_supplicant/mbo.c b/wpa_supplicant/mbo.c
index 1e28545..2fda743 100644
--- a/wpa_supplicant/mbo.c
+++ b/wpa_supplicant/mbo.c
@@ -714,3 +714,19 @@ fail:
wpa_printf(MSG_DEBUG, "MBO IE parse failed (id=%u len=%u left=%zu)", id,
elen, len);
}
+
+
+size_t wpas_mbo_ie_bss_trans_reject(struct wpa_supplicant *wpa_s, u8 *pos,
+ size_t len,
+ enum mbo_transition_reject_reason reason)
+{
+ size_t res;
+ u8 reject_attr[3];
+
+ reject_attr[0] = MBO_ATTR_ID_TRANSITION_REJECT_REASON;
+ reject_attr[1] = 1;
+ reject_attr[2] = reason;
+
+ res = mbo_add_ie(pos, len, reject_attr, sizeof(reject_attr));
+ return res;
+}
diff --git a/wpa_supplicant/wnm_sta.c b/wpa_supplicant/wnm_sta.c
index a3cf32d..7270b88 100644
--- a/wpa_supplicant/wnm_sta.c
+++ b/wpa_supplicant/wnm_sta.c
@@ -619,6 +619,14 @@ static void wnm_send_bss_transition_mgmt_resp(
pos += ETH_ALEN;
}
+#ifdef CONFIG_MBO
+ if (status != WNM_BSS_TM_ACCEPT) {
+ pos += wpas_mbo_ie_bss_trans_reject(wpa_s, pos,
+ buf + sizeof(buf) - pos,
+ MBO_TRANSITION_REJECT_REASON_UNSPECIFIED);
+ }
+#endif /* CONFIG_MBO */
+
len = pos - (u8 *) &mgmt->u.action.category;
res = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
diff --git a/wpa_supplicant/wpa_supplicant_i.h b/wpa_supplicant/wpa_supplicant_i.h
index 9c09fd7..2ab7026 100644
--- a/wpa_supplicant/wpa_supplicant_i.h
+++ b/wpa_supplicant/wpa_supplicant_i.h
@@ -1164,6 +1164,9 @@ int wpas_mbo_supp_op_class_ie(struct wpa_supplicant *wpa_s, int freq, u8 *pos,
size_t len);
void wpas_mbo_ie_trans_req(struct wpa_supplicant *wpa_s, const u8 *ie,
size_t len);
+size_t wpas_mbo_ie_bss_trans_reject(struct wpa_supplicant *wpa_s, u8 *pos,
+ size_t len,
+ enum mbo_transition_reject_reason reason);
/**
* wpa_supplicant_ctrl_iface_ctrl_rsp_handle - Handle a control response
--
1.9.1
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