P2P: Add Operating class 125 for P2P supported channels

Add operating class 125 (channels 149..169) to the list of P2P supported
channels. This allows the 5 GHz channels 161 and 169 to be used for P2P
GO when those channels are allowed for AP mode in the current regulatory
domain.

Signed-off-by: Amr BEN ABDESSALEM <amrx.ben.abdessalem@intel.com>

src/common/ieee802_11_common.c

@@ -630,6 +630,10 @@ static int ieee80211_chan_to_freq_us(u8 op_class, u8 chan)
 		if (chan < 149 || chan > 161)
 			return -1;
 		return 5000 + 5 * chan;
+	case 5: /* channels 149,153,157,161,165 */
+		if (chan < 149 || chan > 165)
+			return -1;
+		return 5000 + 5 * chan;
 	case 34: /* 60 GHz band, channels 1..3 */
 		if (chan < 1 || chan > 3)
 			return -1;
@@ -782,12 +786,15 @@ static int ieee80211_chan_to_freq_global(u8 op_class, u8 chan)
 			return -1;
 		return 5000 + 5 * chan;
 	case 124: /* channels 149,153,157,161 */
-	case 125: /* channels 149,153,157,161,165,169 */
 	case 126: /* channels 149,157; 40 MHz */
 	case 127: /* channels 153,161; 40 MHz */
 		if (chan < 149 || chan > 161)
 			return -1;
 		return 5000 + 5 * chan;
+	case 125: /* channels 149,153,157,161,165,169 */
+		if (chan < 149 || chan > 169)
+			return -1;
+		return 5000 + 5 * chan;
 	case 128: /* center freqs 42, 58, 106, 122, 138, 155; 80 MHz */
 	case 130: /* center freqs 42, 58, 106, 122, 138, 155; 80 MHz */
 		if (chan < 36 || chan > 161)

src/p2p/p2p.c

@@ -1381,7 +1381,7 @@ static int p2p_prepare_channel_pref(struct p2p_data *p2p,
 static void p2p_prepare_channel_best(struct p2p_data *p2p)
 {
 	u8 op_class, op_channel;
-	const int op_classes_5ghz[] = { 124, 115, 0 };
+	const int op_classes_5ghz[] = { 124, 125, 115, 0 };
 	const int op_classes_ht40[] = { 126, 127, 116, 117, 0 };
 	const int op_classes_vht[] = { 128, 0 };
 

src/p2p/p2p_go_neg.c

@@ -379,7 +379,7 @@ void p2p_reselect_channel(struct p2p_data *p2p,
 	int freq;
 	u8 op_reg_class, op_channel;
 	unsigned int i;
-	const int op_classes_5ghz[] = { 124, 115, 0 };
+	const int op_classes_5ghz[] = { 124, 125, 115, 0 };
 	const int op_classes_ht40[] = { 126, 127, 116, 117, 0 };
 	const int op_classes_vht[] = { 128, 0 };
 

src/p2p/p2p_utils.c

@@ -101,6 +101,15 @@ int p2p_freq_to_channel(unsigned int freq, u8 *op_class, u8 *channel)
 		return 0;
 	}
 
+	if (freq >= 5745 && freq <= 5845) {
+		if ((freq - 5000) % 5)
+			return -1;
+
+		*op_class = 125; /* 5 GHz, channels 149..169 */
+		*channel = (freq - 5000) / 5;
+		return 0;
+	}
+
 	if (freq >= 58320 && freq <= 64800) {
 		if ((freq - 58320) % 2160)
 			return -1;

wpa_supplicant/p2p_supplicant.c

@@ -3116,6 +3116,7 @@ static const struct p2p_oper_class_map op_class[] = {
 #endif
 	{ HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
 	{ HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
+	{ HOSTAPD_MODE_IEEE80211A, 125, 149, 169, 4, BW20 },
 	{ HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
 	{ HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
 	{ HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
@@ -5226,6 +5227,7 @@ static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
 		    wpa_s->conf->p2p_oper_reg_class == 116 ||
 		    wpa_s->conf->p2p_oper_reg_class == 117 ||
 		    wpa_s->conf->p2p_oper_reg_class == 124 ||
+		    wpa_s->conf->p2p_oper_reg_class == 125 ||
 		    wpa_s->conf->p2p_oper_reg_class == 126 ||
 		    wpa_s->conf->p2p_oper_reg_class == 127) &&
 		   freq_included(channels,