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📄 accounting.c(14.53 KB)
📄 accounting.h(1.12 KB)
📄 acs.c(29.71 KB)
📄 acs.h(764 B)
📄 airtime_policy.c(6.82 KB)
📄 airtime_policy.h(1.27 KB)
📄 ap_config.c(33.39 KB)
📄 ap_config.h(26.53 KB)
📄 ap_drv_ops.c(25.84 KB)
📄 ap_drv_ops.h(13.38 KB)
📄 ap_list.c(6.82 KB)
📄 ap_list.h(1.5 KB)
📄 ap_mlme.c(5.64 KB)
📄 ap_mlme.h(1007 B)
📄 authsrv.c(8.72 KB)
📄 authsrv.h(352 B)
📄 beacon.c(40.32 KB)
📄 beacon.h(1.25 KB)
📄 bss_load.c(2.4 KB)
📄 bss_load.h(376 B)
📄 ctrl_iface_ap.c(24.3 KB)
📄 ctrl_iface_ap.h(1.61 KB)
📄 dfs.c(29.35 KB)
📄 dfs.h(1.22 KB)
📄 dhcp_snoop.c(3.36 KB)
📄 dhcp_snoop.h(590 B)
📄 dpp_hostapd.c(48.28 KB)
📄 dpp_hostapd.h(1.74 KB)
📄 drv_callbacks.c(51.68 KB)
📄 eap_user_db.c(7.92 KB)
📄 eth_p_oui.c(4.44 KB)
📄 eth_p_oui.h(958 B)
📄 fils_hlp.c(16.82 KB)
📄 fils_hlp.h(547 B)
📄 gas_query_ap.c(19.53 KB)
📄 gas_query_ap.h(1.24 KB)
📄 gas_serv.c(50.48 KB)
📄 gas_serv.h(3.38 KB)
📄 hostapd.c(89.58 KB)
📄 hostapd.h(17.99 KB)
📄 hs20.c(6.27 KB)
📄 hs20.h(843 B)
📄 hw_features.c(24.77 KB)
📄 hw_features.h(1.93 KB)
📄 iapp.c(14.59 KB)
📄 iapp.h(833 B)
📄 ieee802_11.c(148.71 KB)
📄 ieee802_11.h(7.97 KB)
📄 ieee802_11_auth.c(18.3 KB)
📄 ieee802_11_auth.h(1.04 KB)
📄 ieee802_11_he.c(8.77 KB)
📄 ieee802_11_ht.c(16.22 KB)
📄 ieee802_11_shared.c(23.95 KB)
📄 ieee802_11_vht.c(13.4 KB)
📄 ieee802_1x.c(83.16 KB)
📄 ieee802_1x.h(2.84 KB)
📄 mbo_ap.c(5.22 KB)
📄 mbo_ap.h(1.16 KB)
📄 ndisc_snoop.c(4.3 KB)
📄 ndisc_snoop.h(838 B)
📄 neighbor_db.c(6.49 KB)
📄 neighbor_db.h(940 B)
📄 p2p_hostapd.c(2.57 KB)
📄 p2p_hostapd.h(888 B)
📄 pmksa_cache_auth.c(18.79 KB)
📄 pmksa_cache_auth.h(2.69 KB)
📄 preauth_auth.c(6.47 KB)
📄 preauth_auth.h(1.26 KB)
📄 rrm.c(17.27 KB)
📄 rrm.h(1.21 KB)
📄 sta_info.c(41.42 KB)
📄 sta_info.h(11.63 KB)
📄 taxonomy.c(7.45 KB)
📄 taxonomy.h(766 B)
📄 tkip_countermeasures.c(2.95 KB)
📄 tkip_countermeasures.h(451 B)
📄 utils.c(2.29 KB)
📄 vlan.c(756 B)
📄 vlan.h(727 B)
📄 vlan_full.c(18.35 KB)
📄 vlan_ifconfig.c(1.47 KB)
📄 vlan_init.c(5.88 KB)
📄 vlan_init.h(1.09 KB)
📄 vlan_ioctl.c(3.75 KB)
📄 vlan_util.c(3.9 KB)
📄 vlan_util.h(980 B)
📄 wmm.c(11.47 KB)
📄 wmm.h(653 B)
📄 wnm_ap.c(23.69 KB)
📄 wnm_ap.h(1.08 KB)
📄 wpa_auth.c(140.03 KB)
📄 wpa_auth.h(17.89 KB)
📄 wpa_auth_ft.c(120.89 KB)
📄 wpa_auth_glue.c(35.42 KB)
📄 wpa_auth_glue.h(443 B)
📄 wpa_auth_i.h(8.47 KB)
📄 wpa_auth_ie.c(32.38 KB)
📄 wpa_auth_ie.h(1.14 KB)
📄 wpa_auth_kay.c(12.26 KB)
📄 wpa_auth_kay.h(1.15 KB)
📄 wps_hostapd.c(54.66 KB)
📄 wps_hostapd.h(2.79 KB)
📄 x_snoop.c(3.21 KB)
📄 x_snoop.h(1.29 KB)

Editing: mbo_ap.c

/*
 * hostapd - MBO
 * Copyright (c) 2016, Qualcomm Atheros, Inc.
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#include "utils/includes.h"

#include "utils/common.h"
#include "common/ieee802_11_defs.h"
#include "common/ieee802_11_common.h"
#include "hostapd.h"
#include "sta_info.h"
#include "mbo_ap.h"

void mbo_ap_sta_free(struct sta_info *sta)
{
	struct mbo_non_pref_chan_info *info, *prev;

info = sta->non_pref_chan;
	sta->non_pref_chan = NULL;
	while (info) {
		prev = info;
		info = info->next;
		os_free(prev);
	}
}

static void mbo_ap_parse_non_pref_chan(struct sta_info *sta,
				       const u8 *buf, size_t len)
{
	struct mbo_non_pref_chan_info *info, *tmp;
	char channels[200], *pos, *end;
	size_t num_chan, i;
	int ret;

if (len <= 3)
		return; /* Not enough room for any channels */

num_chan = len - 3;
	info = os_zalloc(sizeof(*info) + num_chan);
	if (!info)
		return;
	info->op_class = buf[0];
	info->pref = buf[len - 2];
	info->reason_code = buf[len - 1];
	info->num_channels = num_chan;
	buf++;
	os_memcpy(info->channels, buf, num_chan);
	if (!sta->non_pref_chan) {
		sta->non_pref_chan = info;
	} else {
		tmp = sta->non_pref_chan;
		while (tmp->next)
			tmp = tmp->next;
		tmp->next = info;
	}

pos = channels;
	end = pos + sizeof(channels);
	*pos = '\0';
	for (i = 0; i < num_chan; i++) {
		ret = os_snprintf(pos, end - pos, "%s%u",
				  i == 0 ? "" : " ", buf[i]);
		if (os_snprintf_error(end - pos, ret)) {
			*pos = '\0';
			break;
		}
		pos += ret;
	}

wpa_printf(MSG_DEBUG, "MBO: STA " MACSTR
		   " non-preferred channel list (op class %u, pref %u, reason code %u, channels %s)",
		   MAC2STR(sta->addr), info->op_class, info->pref,
		   info->reason_code, channels);
}

void mbo_ap_check_sta_assoc(struct hostapd_data *hapd, struct sta_info *sta,
			    struct ieee802_11_elems *elems)
{
	const u8 *pos, *attr, *end;
	size_t len;

if (!hapd->conf->mbo_enabled || !elems->mbo)
		return;

pos = elems->mbo + 4;
	len = elems->mbo_len - 4;
	wpa_hexdump(MSG_DEBUG, "MBO: Association Request attributes", pos, len);

attr = get_ie(pos, len, MBO_ATTR_ID_CELL_DATA_CAPA);
	if (attr && attr[1] >= 1)
		sta->cell_capa = attr[2];

mbo_ap_sta_free(sta);
	end = pos + len;
	while (end - pos > 1) {
		u8 ie_len = pos[1];

if (2 + ie_len > end - pos)
			break;

if (pos[0] == MBO_ATTR_ID_NON_PREF_CHAN_REPORT)
			mbo_ap_parse_non_pref_chan(sta, pos + 2, ie_len);
		pos += 2 + pos[1];
	}
}

int mbo_ap_get_info(struct sta_info *sta, char *buf, size_t buflen)
{
	char *pos = buf, *end = buf + buflen;
	int ret;
	struct mbo_non_pref_chan_info *info;
	u8 i;
	unsigned int count = 0;

if (!sta->cell_capa)
		return 0;

ret = os_snprintf(pos, end - pos, "mbo_cell_capa=%u\n", sta->cell_capa);
	if (os_snprintf_error(end - pos, ret))
		return pos - buf;
	pos += ret;

for (info = sta->non_pref_chan; info; info = info->next) {
		char *pos2 = pos;

ret = os_snprintf(pos2, end - pos2,
				  "non_pref_chan[%u]=%u:%u:%u:",
				  count, info->op_class, info->pref,
				  info->reason_code);
		count++;
		if (os_snprintf_error(end - pos2, ret))
			break;
		pos2 += ret;

for (i = 0; i < info->num_channels; i++) {
			ret = os_snprintf(pos2, end - pos2, "%u%s",
					  info->channels[i],
					  i + 1 < info->num_channels ?
					  "," : "");
			if (os_snprintf_error(end - pos2, ret)) {
				pos2 = NULL;
				break;
			}
			pos2 += ret;
		}

if (!pos2)
			break;
		ret = os_snprintf(pos2, end - pos2, "\n");
		if (os_snprintf_error(end - pos2, ret))
			break;
		pos2 += ret;
		pos = pos2;
	}

return pos - buf;
}

static void mbo_ap_wnm_notif_req_cell_capa(struct sta_info *sta,
					   const u8 *buf, size_t len)
{
	if (len < 1)
		return;
	wpa_printf(MSG_DEBUG, "MBO: STA " MACSTR
		   " updated cellular data capability: %u",
		   MAC2STR(sta->addr), buf[0]);
	sta->cell_capa = buf[0];
}

static void mbo_ap_wnm_notif_req_elem(struct sta_info *sta, u8 type,
				      const u8 *buf, size_t len,
				      int *first_non_pref_chan)
{
	switch (type) {
	case WFA_WNM_NOTIF_SUBELEM_NON_PREF_CHAN_REPORT:
		if (*first_non_pref_chan) {
			/*
			 * Need to free the previously stored entries now to
			 * allow the update to replace all entries.
			 */
			*first_non_pref_chan = 0;
			mbo_ap_sta_free(sta);
		}
		mbo_ap_parse_non_pref_chan(sta, buf, len);
		break;
	case WFA_WNM_NOTIF_SUBELEM_CELL_DATA_CAPA:
		mbo_ap_wnm_notif_req_cell_capa(sta, buf, len);
		break;
	default:
		wpa_printf(MSG_DEBUG,
			   "MBO: Ignore unknown WNM Notification WFA subelement %u",
			   type);
		break;
	}
}

void mbo_ap_wnm_notification_req(struct hostapd_data *hapd, const u8 *addr,
				 const u8 *buf, size_t len)
{
	const u8 *pos, *end;
	u8 ie_len;
	struct sta_info *sta;
	int first_non_pref_chan = 1;

if (!hapd->conf->mbo_enabled)
		return;

sta = ap_get_sta(hapd, addr);
	if (!sta)
		return;

pos = buf;
	end = buf + len;

while (end - pos > 1) {
		ie_len = pos[1];

if (2 + ie_len > end - pos)
			break;

if (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
		    ie_len >= 4 && WPA_GET_BE24(pos + 2) == OUI_WFA)
			mbo_ap_wnm_notif_req_elem(sta, pos[5],
						  pos + 6, ie_len - 4,
						  &first_non_pref_chan);
		else
			wpa_printf(MSG_DEBUG,
				   "MBO: Ignore unknown WNM Notification element %u (len=%u)",
				   pos[0], pos[1]);

pos += 2 + pos[1];
	}
}

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Editing: mbo_ap.c

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