OpenWrt – Rev 3

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--- a/wpa_supplicant/Makefile
+++ b/wpa_supplicant/Makefile
@@ -26,6 +26,10 @@ CFLAGS += $(EXTRA_CFLAGS)
 CFLAGS += -I$(abspath ../src)
 CFLAGS += -I$(abspath ../src/utils)
 
+ifdef MULTICALL
+CFLAGS += -DMULTICALL
+endif
+
 -include .config
 -include $(if $(MULTICALL),../hostapd/.config)
 
@@ -117,6 +121,8 @@ OBJS_c += ../src/utils/common.o
 OBJS_c += ../src/common/cli.o
 OBJS += wmm_ac.o
 
+OBJS += ../src/common/wpa_ctrl.o
+
 ifndef CONFIG_OS
 ifdef CONFIG_NATIVE_WINDOWS
 CONFIG_OS=win32
--- a/wpa_supplicant/bss.c
+++ b/wpa_supplicant/bss.c
@@ -11,6 +11,7 @@
 #include "utils/common.h"
 #include "utils/eloop.h"
 #include "common/ieee802_11_defs.h"
+#include "common/ieee802_11_common.h"
 #include "drivers/driver.h"
 #include "eap_peer/eap.h"
 #include "wpa_supplicant_i.h"
@@ -290,6 +291,10 @@ void calculate_update_time(const struct
 static void wpa_bss_copy_res(struct wpa_bss *dst, struct wpa_scan_res *src,
                             struct os_reltime *fetch_time)
 {
+       struct ieee80211_ht_capabilities *capab;
+       struct ieee80211_ht_operation *oper;
+       struct ieee802_11_elems elems;
+
        dst->flags = src->flags;
        os_memcpy(dst->bssid, src->bssid, ETH_ALEN);
        dst->freq = src->freq;
@@ -302,6 +307,15 @@ static void wpa_bss_copy_res(struct wpa_
        dst->est_throughput = src->est_throughput;
        dst->snr = src->snr;
 
+       memset(&elems, 0, sizeof(elems));
+       ieee802_11_parse_elems((u8 *) (src + 1), src->ie_len, &elems, 0);
+       capab = (struct ieee80211_ht_capabilities *) elems.ht_capabilities;
+       oper = (struct ieee80211_ht_operation *) elems.ht_operation;
+       if (capab)
+               dst->ht_capab = le_to_host16(capab->ht_capabilities_info);
+       if (oper)
+               dst->ht_param = oper->ht_param;
+
        calculate_update_time(fetch_time, src->age, &dst->last_update);
 }
 
--- a/wpa_supplicant/bss.h
+++ b/wpa_supplicant/bss.h
@@ -80,6 +80,10 @@ struct wpa_bss {
        u8 ssid[SSID_MAX_LEN];
        /** Length of SSID */
        size_t ssid_len;
+       /** HT capabilities */
+       u16 ht_capab;
+       /* Five octets of HT Operation Information */
+       u8 ht_param;
        /** Frequency of the channel in MHz (e.g., 2412 = channel 1) */
        int freq;
        /** Beacon interval in TUs (host byte order) */
--- a/wpa_supplicant/main.c
+++ b/wpa_supplicant/main.c
@@ -34,7 +34,7 @@ static void usage(void)
               "vW] [-P<pid file>] "
               "[-g<global ctrl>] \\\n"
               "        [-G<group>] \\\n"
-              "        -i<ifname> -c<config file> [-C<ctrl>] [-D<driver>] "
+              "        -i<ifname> -c<config file> [-C<ctrl>] [-D<driver>] [-H<hostapd path>] "
               "[-p<driver_param>] \\\n"
               "        [-b<br_ifname>] [-e<entropy file>]"
 #ifdef CONFIG_DEBUG_FILE
@@ -74,6 +74,7 @@ static void usage(void)
               "  -g = global ctrl_interface\n"
               "  -G = global ctrl_interface group\n"
               "  -h = show this help text\n"
+              "  -H = connect to a hostapd instance to manage state changes\n"
               "  -i = interface name\n"
               "  -I = additional configuration file\n"
               "  -K = include keys (passwords, etc.) in debug output\n"
@@ -201,7 +202,7 @@ int main(int argc, char *argv[])
 
        for (;;) {
                c = getopt(argc, argv,
-                          "b:Bc:C:D:de:f:g:G:hi:I:KLMm:No:O:p:P:qsTtuvW");
+                          "b:Bc:C:D:de:f:g:G:hH:i:I:KLMm:No:O:p:P:qsTtuvW");
                if (c < 0)
                        break;
                switch (c) {
@@ -248,6 +249,9 @@ int main(int argc, char *argv[])
                        usage();
                        exitcode = 0;
                        goto out;
+               case 'H':
+                       iface->hostapd_ctrl = optarg;
+                       break;
                case 'i':
                        iface->ifname = optarg;
                        break;
--- a/wpa_supplicant/wpa_supplicant.c
+++ b/wpa_supplicant/wpa_supplicant.c
@@ -125,6 +125,55 @@ static void wpas_update_fils_connect_par
 #endif /* CONFIG_FILS && IEEE8021X_EAPOL */
 
 
+static int hostapd_stop(struct wpa_supplicant *wpa_s)
+{
+       const char *cmd = "STOP_AP";
+       char buf[256];
+       size_t len = sizeof(buf);
+
+       if (wpa_ctrl_request(wpa_s->hostapd, cmd, os_strlen(cmd), buf, &len, NULL) < 0) {
+               wpa_printf(MSG_ERROR, "\nFailed to stop hostapd AP interfaces\n");
+               return -1;
+       }
+       return 0;
+}
+
+static int hostapd_reload(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
+{
+       char *cmd = NULL;
+       char buf[256];
+       size_t len = sizeof(buf);
+       enum hostapd_hw_mode hw_mode;
+       u8 channel;
+       int sec_chan = 0;
+       int ret;
+
+       if (!bss)
+               return -1;
+
+       if (bss->ht_param & HT_INFO_HT_PARAM_STA_CHNL_WIDTH) {
+               int sec = bss->ht_param & HT_INFO_HT_PARAM_SECONDARY_CHNL_OFF_MASK;
+               if (sec == HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE)
+                       sec_chan = 1;
+               else if (sec ==  HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW)
+                       sec_chan = -1;
+       }
+
+       hw_mode = ieee80211_freq_to_chan(bss->freq, &channel);
+       if (asprintf(&cmd, "UPDATE channel=%d sec_chan=%d hw_mode=%d",
+                    channel, sec_chan, hw_mode) < 0)
+               return -1;
+
+       ret = wpa_ctrl_request(wpa_s->hostapd, cmd, os_strlen(cmd), buf, &len, NULL);
+       free(cmd);
+
+       if (ret < 0) {
+               wpa_printf(MSG_ERROR, "\nFailed to reload hostapd AP interfaces\n");
+               return -1;
+       }
+       return 0;
+}
+
 /* Configure default/group WEP keys for static WEP */
 int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
 {
@@ -893,12 +942,16 @@ void wpa_supplicant_set_state(struct wpa
 
                sme_sched_obss_scan(wpa_s, 1);
 
+               if (wpa_s->hostapd)
+                       hostapd_reload(wpa_s, wpa_s->current_bss);
 #if defined(CONFIG_FILS) && defined(IEEE8021X_EAPOL)
                if (!fils_hlp_sent && ssid && ssid->eap.erp)
                        wpas_update_fils_connect_params(wpa_s);
 #endif /* CONFIG_FILS && IEEE8021X_EAPOL */
        } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING ||
                   state == WPA_ASSOCIATED) {
+               if (wpa_s->hostapd)
+                       hostapd_stop(wpa_s);
                wpa_s->new_connection = 1;
                wpa_drv_set_operstate(wpa_s, 0);
 #ifndef IEEE8021X_EAPOL
@@ -1920,6 +1973,8 @@ void wpa_supplicant_associate(struct wpa
                        wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
                        ssid->id);
                wpas_notify_mesh_group_started(wpa_s, ssid);
+               if (wpa_s->hostapd)
+                       hostapd_reload(wpa_s, wpa_s->current_bss);
 #else /* CONFIG_MESH */
                wpa_msg(wpa_s, MSG_ERROR,
                        "mesh mode support not included in the build");
@@ -5362,6 +5417,16 @@ static int wpa_supplicant_init_iface(str
                           sizeof(wpa_s->bridge_ifname));
        }
 
+       if (iface->hostapd_ctrl) {
+               wpa_s->hostapd = wpa_ctrl_open(iface->hostapd_ctrl);
+               if (!wpa_s->hostapd) {
+                       wpa_printf(MSG_ERROR, "\nFailed to connect to hostapd\n");
+                       return -1;
+               }
+               if (hostapd_stop(wpa_s) < 0)
+                       return -1;
+       }
+
        /* RSNA Supplicant Key Management - INITIALIZE */
        eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
        eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
@@ -5683,6 +5748,11 @@ static void wpa_supplicant_deinit_iface(
        if (terminate)
                wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING);
 
+       if (wpa_s->hostapd) {
+               wpa_ctrl_close(wpa_s->hostapd);
+               wpa_s->hostapd = NULL;
+       }
+
        if (wpa_s->ctrl_iface) {
                wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
                wpa_s->ctrl_iface = NULL;
--- a/wpa_supplicant/wpa_supplicant_i.h
+++ b/wpa_supplicant/wpa_supplicant_i.h
@@ -101,6 +101,11 @@ struct wpa_interface {
        const char *ifname;
 
        /**
+        * hostapd_ctrl - path to hostapd control socket for notification
+        */
+       const char *hostapd_ctrl;
+
+       /**
         * bridge_ifname - Optional bridge interface name
         *
         * If the driver interface (ifname) is included in a Linux bridge
@@ -513,6 +518,8 @@ struct wpa_supplicant {
 #endif /* CONFIG_CTRL_IFACE_BINDER */
        char bridge_ifname[16];
 
+       struct wpa_ctrl *hostapd;
+
        char *confname;
        char *confanother;