Move punct_update_legacy_bw() into src/common

This function is needed for more common operations so move it to a more
suitable location.

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>

src/ap/ieee802_11.c

@@ -8067,73 +8067,4 @@ u8 * hostapd_eid_mbssid(struct hostapd_data *hapd, u8 *eid, u8 *end,
 	return eid;
 }
 
-
-static void punct_update_legacy_bw_80(u8 bitmap, u8 pri_chan, u8 *seg0)
-{
-	u8 first_chan = *seg0 - 6, sec_chan;
-
-	switch (bitmap) {
-	case 0x6:
-		*seg0 = 0;
-		return;
-	case 0x8:
-	case 0x4:
-	case 0x2:
-	case 0x1:
-	case 0xC:
-	case 0x3:
-		if (pri_chan < *seg0)
-			*seg0 -= 4;
-		else
-			*seg0 += 4;
-		break;
-	}
-
-	if (pri_chan < *seg0)
-		sec_chan = pri_chan + 4;
-	else
-		sec_chan = pri_chan - 4;
-
-	if (bitmap & BIT((sec_chan - first_chan) / 4))
-		*seg0 = 0;
-}
-
-
-static void punct_update_legacy_bw_160(u8 bitmap, u8 pri,
-				       enum oper_chan_width *width, u8 *seg0)
-{
-	if (pri < *seg0) {
-		*seg0 -= 8;
-		if (bitmap & 0x0F) {
-			*width = 0;
-			punct_update_legacy_bw_80(bitmap & 0xF, pri, seg0);
-		}
-	} else {
-		*seg0 += 8;
-		if (bitmap & 0xF0) {
-			*width = 0;
-			punct_update_legacy_bw_80((bitmap & 0xF0) >> 4, pri,
-						  seg0);
-		}
-	}
-}
-
-
-void punct_update_legacy_bw(u16 bitmap, u8 pri, enum oper_chan_width *width,
-			    u8 *seg0, u8 *seg1)
-{
-	if (*width == CONF_OPER_CHWIDTH_80MHZ && (bitmap & 0xF)) {
-		*width = CONF_OPER_CHWIDTH_USE_HT;
-		punct_update_legacy_bw_80(bitmap & 0xF, pri, seg0);
-	}
-
-	if (*width == CONF_OPER_CHWIDTH_160MHZ && (bitmap & 0xFF)) {
-		*width = CONF_OPER_CHWIDTH_80MHZ;
-		*seg1 = 0;
-		punct_update_legacy_bw_160(bitmap & 0xFF, pri, width, seg0);
-	}
-
-	/* TODO: 320 MHz */
-}
-
 #endif /* CONFIG_NATIVE_WINDOWS */

src/ap/ieee802_11.h

@@ -248,8 +248,6 @@ u8 * hostapd_eid_mbssid(struct hostapd_data *hapd, u8 *eid, u8 *end,
 			u8 **elem_offset,
 			const u8 *known_bss, size_t known_bss_len, u8 *rnr_eid,
 			u8 *rnr_count, u8 **rnr_offset, size_t rnr_len);
-void punct_update_legacy_bw(u16 bitmap, u8 pri_chan,
-			    enum oper_chan_width *width, u8 *seg0, u8 *seg1);
 bool hostapd_is_mld_ap(struct hostapd_data *hapd);
 const char * sae_get_password(struct hostapd_data *hapd,
 			      struct sta_info *sta, const char *rx_id,

src/ap/ieee802_11_he.c

@@ -12,6 +12,7 @@
 #include "utils/common.h"
 #include "common/ieee802_11_defs.h"
 #include "common/ieee802_11_common.h"
+#include "common/hw_features_common.h"
 #include "hostapd.h"
 #include "ap_config.h"
 #include "beacon.h"

src/ap/ieee802_11_vht.c

@@ -12,6 +12,7 @@
 
 #include "utils/common.h"
 #include "common/ieee802_11_defs.h"
+#include "common/hw_features_common.h"
 #include "hostapd.h"
 #include "ap_config.h"
 #include "sta_info.h"

src/common/hw_features_common.c

@@ -381,6 +381,75 @@ int check_40mhz_2g4(struct hostapd_hw_modes *mode,
 }
 
 
+static void punct_update_legacy_bw_80(u8 bitmap, u8 pri_chan, u8 *seg0)
+{
+	u8 first_chan = *seg0 - 6, sec_chan;
+
+	switch (bitmap) {
+	case 0x6:
+		*seg0 = 0;
+		return;
+	case 0x8:
+	case 0x4:
+	case 0x2:
+	case 0x1:
+	case 0xC:
+	case 0x3:
+		if (pri_chan < *seg0)
+			*seg0 -= 4;
+		else
+			*seg0 += 4;
+		break;
+	}
+
+	if (pri_chan < *seg0)
+		sec_chan = pri_chan + 4;
+	else
+		sec_chan = pri_chan - 4;
+
+	if (bitmap & BIT((sec_chan - first_chan) / 4))
+		*seg0 = 0;
+}
+
+
+static void punct_update_legacy_bw_160(u8 bitmap, u8 pri,
+				       enum oper_chan_width *width, u8 *seg0)
+{
+	if (pri < *seg0) {
+		*seg0 -= 8;
+		if (bitmap & 0x0F) {
+			*width = 0;
+			punct_update_legacy_bw_80(bitmap & 0xF, pri, seg0);
+		}
+	} else {
+		*seg0 += 8;
+		if (bitmap & 0xF0) {
+			*width = 0;
+			punct_update_legacy_bw_80((bitmap & 0xF0) >> 4, pri,
+						  seg0);
+		}
+	}
+}
+
+
+void punct_update_legacy_bw(u16 bitmap, u8 pri, enum oper_chan_width *width,
+			    u8 *seg0, u8 *seg1)
+{
+	if (*width == CONF_OPER_CHWIDTH_80MHZ && (bitmap & 0xF)) {
+		*width = CONF_OPER_CHWIDTH_USE_HT;
+		punct_update_legacy_bw_80(bitmap & 0xF, pri, seg0);
+	}
+
+	if (*width == CONF_OPER_CHWIDTH_160MHZ && (bitmap & 0xFF)) {
+		*width = CONF_OPER_CHWIDTH_80MHZ;
+		*seg1 = 0;
+		punct_update_legacy_bw_160(bitmap & 0xFF, pri, width, seg0);
+	}
+
+	/* TODO: 320 MHz */
+}
+
+
 int hostapd_set_freq_params(struct hostapd_freq_params *data,
 			    enum hostapd_hw_mode mode,
 			    int freq, int channel, int enable_edmg,

src/common/hw_features_common.h

@@ -35,6 +35,8 @@ int check_40mhz_5g(struct wpa_scan_results *scan_res,
 int check_40mhz_2g4(struct hostapd_hw_modes *mode,
 		    struct wpa_scan_results *scan_res, int pri_chan,
 		    int sec_chan);
+void punct_update_legacy_bw(u16 bitmap, u8 pri_chan,
+			    enum oper_chan_width *width, u8 *seg0, u8 *seg1);
 int hostapd_set_freq_params(struct hostapd_freq_params *data,
 			    enum hostapd_hw_mode mode,
 			    int freq, int channel, int edmg, u8 edmg_channel,