P2P: Allow p2p_invite-persistent to specify channel for GO

The freq and ht40 parameters can now be used with the p2p_invite
command when reinvoking a persistent group as the GO.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>

wpa_supplicant/README-P2P

@@ -125,7 +125,7 @@ join-a-group style PD instead of GO Negotiation style PD.
 
 p2p_connect <peer device address> <pbc|pin|PIN#> [display|keypad]
 	[persistent|persistent=<network id>] [join|auth]
-	[go_intent=<0..15>] [freq=<in MHz>] [provdisc]
+	[go_intent=<0..15>] [freq=<in MHz>] [ht40] [provdisc]
 
 Start P2P group formation with a discovered P2P peer. This includes
 optional group owner negotiation, group interface setup, provisioning,
@@ -166,7 +166,7 @@ used prior to starting GO Negotiation as a workaround with some deployed
 P2P implementations that require this to allow the user to accept the
 connection.
 
-p2p_group_add [persistent|persistent=<network id>] [freq=<freq in MHz>]
+p2p_group_add [persistent|persistent=<network id>] [freq=<freq in MHz>] [ht40]
 
 Set up a P2P group owner manually (i.e., without group owner
 negotiation with a specific peer). This is also known as autonomous
@@ -346,7 +346,7 @@ Remove all local services from internal SD query processing.
 Invitation
 
 p2p_invite [persistent=<network id>|group=<group ifname>] [peer=address]
-	[go_dev_addr=address]
+	[go_dev_addr=address] [freq=<freq in MHz>] [ht40]
 
 Invite a peer to join a group (e.g., group=wlan1) or to reinvoke a
 persistent group (e.g., persistent=4). If the peer device is the GO of
@@ -354,7 +354,8 @@ the persistent group, the peer parameter is not needed. Otherwise it is
 used to specify which device to invite. go_dev_addr parameter can be
 used to override the GO device address for Invitation Request should
 it be not known for some reason (this should not be needed in most
-cases).
+cases). When reinvoking a persistent group, the GO device can specify
+the frequency for the group with the freq parameter.
 
 Group Operations
 

wpa_supplicant/ctrl_iface.c

@@ -3515,6 +3515,8 @@ static int p2p_ctrl_invite_persistent(struct wpa_supplicant *wpa_s, char *cmd)
 	int id;
 	struct wpa_ssid *ssid;
 	u8 peer[ETH_ALEN];
+	int freq = 0;
+	int ht40;
 
 	id = atoi(cmd);
 	pos = os_strstr(cmd, " peer=");
@@ -3531,7 +3533,18 @@ static int p2p_ctrl_invite_persistent(struct wpa_supplicant *wpa_s, char *cmd)
 		return -1;
 	}
 
-	return wpas_p2p_invite(wpa_s, pos ? peer : NULL, ssid, NULL);
+	pos = os_strstr(cmd, " freq=");
+	if (pos) {
+		pos += 6;
+		freq = atoi(pos);
+		if (freq <= 0)
+			return -1;
+	}
+
+	ht40 = os_strstr(cmd, " ht40") != NULL;
+
+	return wpas_p2p_invite(wpa_s, pos ? peer : NULL, ssid, NULL, freq,
+			       ht40);
 }
 
 

wpa_supplicant/dbus/dbus_new_handlers_p2p.c

@@ -630,7 +630,7 @@ DBusMessage * wpas_dbus_handler_p2p_invite(DBusMessage *message,
 		if (ssid == NULL || ssid->disabled != 2)
 			goto err;
 
-		if (wpas_p2p_invite(wpa_s, peer_addr, ssid, NULL) < 0) {
+		if (wpas_p2p_invite(wpa_s, peer_addr, ssid, NULL, 0, 0) < 0) {
 			reply = wpas_dbus_error_unknown_error(
 				message,
 				"Failed to reinvoke a persistent group");

wpa_supplicant/p2p_supplicant.c

@@ -2298,7 +2298,9 @@ static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
 	}
 
 	wpas_p2p_group_add_persistent(wpa_s, ssid,
-				      ssid->mode == WPAS_MODE_P2P_GO, 0, 0);
+				      ssid->mode == WPAS_MODE_P2P_GO,
+				      wpa_s->p2p_persistent_go_freq,
+				      wpa_s->p2p_go_ht40);
 }
 
 
@@ -4325,11 +4327,14 @@ int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
 
 /* Invite to reinvoke a persistent group */
 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
-		    struct wpa_ssid *ssid, const u8 *go_dev_addr)
+		    struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
+		    int ht40)
 {
 	enum p2p_invite_role role;
 	u8 *bssid = NULL;
 
+	wpa_s->p2p_persistent_go_freq = freq;
+	wpa_s->p2p_go_ht40 = !!ht40;
 	if (ssid->mode == WPAS_MODE_P2P_GO) {
 		role = P2P_INVITE_ROLE_GO;
 		if (peer_addr == NULL) {
@@ -4363,7 +4368,7 @@ int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
 		return -1;
 
 	return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
-			  ssid->ssid, ssid->ssid_len, 0, go_dev_addr, 1);
+			  ssid->ssid, ssid->ssid_len, freq, go_dev_addr, 1);
 }
 
 
@@ -4377,6 +4382,9 @@ int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
 	struct wpa_ssid *ssid;
 	int persistent;
 
+	wpa_s->p2p_persistent_go_freq = 0;
+	wpa_s->p2p_go_ht40 = 0;
+
 	for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 		if (os_strcmp(wpa_s->ifname, ifname) == 0)
 			break;

wpa_supplicant/p2p_supplicant.h

@@ -104,7 +104,8 @@ int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
 			      const char *service);
 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr);
 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
-		    struct wpa_ssid *ssid, const u8 *go_dev_addr);
+		    struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
+		    int ht40);
 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
 			  const u8 *peer_addr, const u8 *go_dev_addr);
 void wpas_p2p_completed(struct wpa_supplicant *wpa_s);

wpa_supplicant/wpa_supplicant_i.h

@@ -539,6 +539,7 @@ struct wpa_supplicant {
 	unsigned int p2p_fallback_to_go_neg:1;
 	unsigned int p2p_pd_before_go_neg:1;
 	unsigned int p2p_go_ht40:1;
+	int p2p_persistent_go_freq;
 	int p2p_persistent_id;
 	int p2p_go_intent;
 	int p2p_connect_freq;