[RFC 2/2] MLO: Add support for open connection when driver's SME in use
Veerendranath Jakkam
quic_vjakkam at quicinc.com
Sat Jul 9 19:46:52 PDT 2022
From: Shivani Baranwal <quic_shivbara at quicinc.com>
This commit does below
- Allow driver's SME to enable MLO(Multi-Link Operation) connection when
non-WPA open mode selected for the connection.
- Read mult-link connection info from NL80211_CMD_CONNECT event and copy
to corresponding wpa_s instance.
- Hold the all the associated link BSSes scan results till the
connection is active.
- Authorize supplicant port for AP MLD address after successful
connection.
Signed-off-by: Shivani Baranwal <quic_shivbara at quicinc.com>
Co-developed-by: Veerendranath Jakkam <quic_vjakkam at quicinc.com>
Signed-off-by: Veerendranath Jakkam <quic_vjakkam at quicinc.com>
---
src/common/defs.h | 2 +
src/drivers/driver.h | 22 ++++++++++
src/drivers/driver_nl80211.c | 80 +++++++++++++++++++++++++++++++---
src/drivers/driver_nl80211.h | 2 +
src/drivers/driver_nl80211_event.c | 78 +++++++++++++++++++++++++++++++--
wpa_supplicant/bss.c | 22 ++++++++--
wpa_supplicant/driver_i.h | 10 +++++
wpa_supplicant/events.c | 89 ++++++++++++++++++++++++++++++++++++++
wpa_supplicant/wpa_supplicant_i.h | 7 +++
9 files changed, 300 insertions(+), 12 deletions(-)
diff --git a/src/common/defs.h b/src/common/defs.h
index 4e63053..91ac4f8 100644
--- a/src/common/defs.h
+++ b/src/common/defs.h
@@ -498,4 +498,6 @@ enum frame_encryption {
FRAME_ENCRYPTED = 1
};
+#define MAX_NUM_MLD_LINKS 15
+
#endif /* DEFS_H */
diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index 52ee8df..0685eb0 100644
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -2621,6 +2621,15 @@ struct weighted_pcl {
u32 flag; /* bitmap for WEIGHTED_PCL_* */
};
+struct driver_sta_mlo_info {
+ u16 valid_links;
+ u8 ap_mld_addr[ETH_ALEN];
+ struct {
+ u8 addr[ETH_ALEN];
+ u8 bssid[ETH_ALEN];
+ } links[MAX_NUM_MLD_LINKS];
+};
+
/**
* struct wpa_driver_ops - Driver interface API definition
*
@@ -4669,6 +4678,19 @@ struct wpa_driver_ops {
const u8 *match, size_t match_len,
bool multicast);
#endif /* CONFIG_TESTING_OPTIONS */
+
+
+ /**
+ * get_sta_mlo_info - Get the current multi-link associtaion info
+ * @priv: private driver interface data
+ * @mlo: pointer to fill multi-link associtaion info
+ * Returns: 0 on success, -1 on failure
+ *
+ * This callback is used to fetch multi-link of the current association.
+ */
+ int (*get_sta_mlo_info)(void *priv,
+ struct driver_sta_mlo_info *mlo_info);
+
};
/**
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 78c0658..5fd058b 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -270,6 +270,7 @@ void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv)
drv->associated = 0;
os_memset(drv->bssid, 0, ETH_ALEN);
drv->first_bss->freq = 0;
+ drv->sta_mlo_info.valid_links = 0;
}
@@ -1013,6 +1014,19 @@ static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
}
+static int nl80211_get_sta_mlo_info(void *priv,
+ struct driver_sta_mlo_info *mlo_info)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+
+ if (!drv->associated)
+ return -1;
+
+ os_memcpy(mlo_info, &drv->sta_mlo_info, sizeof(*mlo_info));
+ return 0;
+}
+
static void wpa_driver_nl80211_event_newlink(
struct nl80211_global *global, struct wpa_driver_nl80211_data *drv,
int ifindex, const char *ifname)
@@ -1447,9 +1461,11 @@ static int nl80211_get_assoc_freq_handler(struct nl_msg *msg, void *arg)
[NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
[NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
[NL80211_BSS_STATUS] = { .type = NLA_U32 },
+ [NL80211_BSS_MLO_LINK_ID] = { .type = NLA_U8 },
};
struct nl80211_get_assoc_freq_arg *ctx = arg;
enum nl80211_bss_status status;
+ struct wpa_driver_nl80211_data *drv = ctx->drv;
nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
genlmsg_attrlen(gnlh, 0), NULL);
@@ -1461,7 +1477,11 @@ static int nl80211_get_assoc_freq_handler(struct nl_msg *msg, void *arg)
status = nla_get_u32(bss[NL80211_BSS_STATUS]);
if (status == NL80211_BSS_STATUS_ASSOCIATED &&
- bss[NL80211_BSS_FREQUENCY]) {
+ bss[NL80211_BSS_FREQUENCY] &&
+ (!drv->sta_mlo_info.valid_links ||
+ (bss[NL80211_BSS_MLO_LINK_ID] &&
+ drv->mlo_assoc_link_id ==
+ nla_get_u8(bss[NL80211_BSS_MLO_LINK_ID])))) {
ctx->assoc_freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
ctx->assoc_freq);
@@ -1473,7 +1493,11 @@ static int nl80211_get_assoc_freq_handler(struct nl_msg *msg, void *arg)
ctx->ibss_freq);
}
if (status == NL80211_BSS_STATUS_ASSOCIATED &&
- bss[NL80211_BSS_BSSID]) {
+ bss[NL80211_BSS_BSSID] &&
+ (!drv->sta_mlo_info.valid_links ||
+ (bss[NL80211_BSS_MLO_LINK_ID] &&
+ drv->mlo_assoc_link_id ==
+ nla_get_u8(bss[NL80211_BSS_MLO_LINK_ID])))) {
os_memcpy(ctx->assoc_bssid,
nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
wpa_printf(MSG_DEBUG, "nl80211: Associated with "
@@ -6395,6 +6419,17 @@ static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv,
nla_put_flag(msg, NL80211_ATTR_EXTERNAL_AUTH_SUPPORT))
return -1;
+ /*
+ * Indicate driver's SME to enable MLO connection only for non-WPA open
+ * connections.
+ */
+ if ((!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) &&
+ params->key_mgmt_suite == WPA_KEY_MGMT_NONE &&
+ params->pairwise_suite == WPA_CIPHER_NONE &&
+ params->group_suite == WPA_CIPHER_NONE &&
+ nla_put_flag(msg, NL80211_ATTR_MLO_SUPPORT))
+ return -1;
+
return 0;
}
@@ -6861,14 +6896,16 @@ static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
struct nl_msg *msg;
struct nl80211_sta_flag_update upd;
int ret;
+ const u8 *connected_addr = drv->sta_mlo_info.valid_links ?
+ drv->sta_mlo_info.ap_mld_addr : drv->bssid;
- if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) {
+ if (!drv->associated && is_zero_ether_addr(connected_addr) && !authorized) {
wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated");
return 0;
}
wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for "
- MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid));
+ MACSTR, authorized ? "" : "un", MAC2STR(connected_addr));
os_memset(&upd, 0, sizeof(upd));
upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
@@ -6876,7 +6913,7 @@ static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) ||
- nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid) ||
+ nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, connected_addr) ||
nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd)) {
nlmsg_free(msg);
return -ENOBUFS;
@@ -9742,6 +9779,38 @@ static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen)
return pos - buf;
pos += res;
+ if (drv->sta_mlo_info.valid_links) {
+ int i;
+ struct driver_sta_mlo_info *mlo = &drv->sta_mlo_info;
+
+ res = os_snprintf(pos, end - pos,
+ "ap_mld_addr=" MACSTR "\n",
+ MAC2STR(mlo->ap_mld_addr));
+
+ if (os_snprintf_error(end - pos, res))
+ return pos - buf;
+ pos += res;
+
+
+ for (i = 0; i < MAX_NUM_MLD_LINKS; i++) {
+ if (!(mlo->valid_links & BIT(i)))
+ continue;
+
+ res = os_snprintf(pos, end - pos,
+ "link_addr[%u]=" MACSTR "\n"
+ "link_bssid[%u]=" MACSTR "\n",
+ i,
+ MAC2STR(mlo->links[i].addr),
+ i,
+ MAC2STR(mlo->links[i].bssid));
+
+ if (os_snprintf_error(end - pos, res))
+ return pos - buf;
+
+ pos += res;
+ }
+ }
+
if (drv->has_capability) {
res = os_snprintf(pos, end - pos,
"capa.key_mgmt=0x%x\n"
@@ -12482,4 +12551,5 @@ const struct wpa_driver_ops wpa_driver_nl80211_ops = {
.register_frame = testing_nl80211_register_frame,
.radio_disable = testing_nl80211_radio_disable,
#endif /* CONFIG_TESTING_OPTIONS */
+ .get_sta_mlo_info = nl80211_get_sta_mlo_info,
};
diff --git a/src/drivers/driver_nl80211.h b/src/drivers/driver_nl80211.h
index 80d4564..f359663 100644
--- a/src/drivers/driver_nl80211.h
+++ b/src/drivers/driver_nl80211.h
@@ -128,6 +128,8 @@ struct wpa_driver_nl80211_data {
u8 bssid[ETH_ALEN];
u8 prev_bssid[ETH_ALEN];
int associated;
+ int mlo_assoc_link_id;
+ struct driver_sta_mlo_info sta_mlo_info;
u8 ssid[SSID_MAX_LEN];
size_t ssid_len;
enum nl80211_iftype nlmode;
diff --git a/src/drivers/driver_nl80211_event.c b/src/drivers/driver_nl80211_event.c
index 369337f..3183508 100644
--- a/src/drivers/driver_nl80211_event.c
+++ b/src/drivers/driver_nl80211_event.c
@@ -420,6 +420,71 @@ convert_connect_fail_reason_codes(enum qca_sta_connect_fail_reason_codes
#endif /* CONFIG_DRIVER_NL80211_QCA */
+static void nl80211_parse_mlo_info(struct wpa_driver_nl80211_data *drv,
+ struct nlattr *addr,
+ struct nlattr *mlo_links,
+ struct nlattr *resp_ie)
+{
+ struct nlattr *link;
+ int rem_links;
+ const u8 *ml_ie;
+ struct driver_sta_mlo_info *mlo = &drv->sta_mlo_info;
+
+ if (!addr || !mlo_links || !resp_ie)
+ return;
+
+ ml_ie = get_ie_ext(nla_data(resp_ie), nla_len(resp_ie),
+ WLAN_EID_EXT_MULTI_LINK);
+
+#define ML_IE_SELF_LINK_ID_OFFSET \
+ (3 + /* IE header */ \
+ 2 + /* Control field */ \
+ 1 + /* Common info length field */ \
+ 6) /* MLD mac address */
+ if (!ml_ie || nla_len(resp_ie) <= ML_IE_SELF_LINK_ID_OFFSET)
+ return;
+
+ drv->mlo_assoc_link_id = ml_ie[ML_IE_SELF_LINK_ID_OFFSET];
+ os_memcpy(mlo->ap_mld_addr, nla_data(addr), ETH_ALEN);
+ wpa_printf(MSG_DEBUG, "ap_mld_addr " MACSTR, MAC2STR(mlo->ap_mld_addr));
+
+ nla_for_each_nested(link, mlo_links, rem_links) {
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
+ int link_id;
+
+ nla_parse(tb, NL80211_ATTR_MAX, nla_data(link), nla_len(link),
+ NULL);
+
+ if (!tb[NL80211_ATTR_MLO_LINK_ID] || !tb[NL80211_ATTR_MAC] ||
+ !tb[NL80211_ATTR_BSSID])
+ continue;
+
+ link_id = nla_get_u8(tb[NL80211_ATTR_MLO_LINK_ID]);
+ mlo->valid_links |= BIT(link_id);
+ os_memcpy(mlo->links[link_id].addr,
+ nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
+ os_memcpy(mlo->links[link_id].bssid,
+ nla_data(tb[NL80211_ATTR_BSSID]), ETH_ALEN);
+ wpa_printf(MSG_DEBUG, "link[%u].addr " MACSTR, link_id,
+ MAC2STR(mlo->links[link_id].addr));
+ wpa_printf(MSG_DEBUG, "link[%u].bssid " MACSTR, link_id,
+ MAC2STR(mlo->links[link_id].bssid));
+ }
+
+ if (drv->mlo_assoc_link_id >= MAX_NUM_MLD_LINKS ||
+ !(mlo->valid_links & BIT(drv->mlo_assoc_link_id))) {
+ wpa_printf(MSG_ERROR, "Invalid MLO assoc link ID %d",
+ drv->mlo_assoc_link_id);
+ mlo->valid_links = 0;
+ return;
+ }
+
+ os_memcpy(drv->bssid,
+ mlo->links[drv->mlo_assoc_link_id].bssid, ETH_ALEN);
+ os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
+}
+
+
static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
enum nl80211_commands cmd, struct nlattr *status,
struct nlattr *addr, struct nlattr *req_ie,
@@ -433,7 +498,8 @@ static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
struct nlattr *subnet_status,
struct nlattr *fils_erp_next_seq_num,
struct nlattr *fils_pmk,
- struct nlattr *fils_pmkid)
+ struct nlattr *fils_pmkid,
+ struct nlattr *mlo_links)
{
union wpa_event_data event;
const u8 *ssid = NULL;
@@ -525,7 +591,9 @@ static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
}
drv->associated = 1;
- if (addr) {
+ drv->sta_mlo_info.valid_links = 0;
+ nl80211_parse_mlo_info(drv, addr, mlo_links, resp_ie);
+ if (!drv->sta_mlo_info.valid_links && addr) {
os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
}
@@ -2111,7 +2179,8 @@ static void qca_nl80211_key_mgmt_auth(struct wpa_driver_nl80211_data *drv,
tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_SUBNET_STATUS],
tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_FILS_ERP_NEXT_SEQ_NUM],
tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_PMK],
- tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_PMKID]);
+ tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_PMKID],
+ NULL);
}
@@ -3113,7 +3182,8 @@ static void do_process_drv_event(struct i802_bss *bss, int cmd,
NULL,
tb[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM],
tb[NL80211_ATTR_PMK],
- tb[NL80211_ATTR_PMKID]);
+ tb[NL80211_ATTR_PMKID],
+ tb[NL80211_ATTR_MLO_LINKS]);
break;
case NL80211_CMD_CH_SWITCH_STARTED_NOTIFY:
mlme_event_ch_switch(drv,
diff --git a/wpa_supplicant/bss.c b/wpa_supplicant/bss.c
index eb97a61..7dcdb99 100644
--- a/wpa_supplicant/bss.c
+++ b/wpa_supplicant/bss.c
@@ -379,6 +379,8 @@ static int wpa_bss_known(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
static int wpa_bss_in_use(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
{
+ int i;
+
if (bss == wpa_s->current_bss)
return 1;
@@ -388,9 +390,23 @@ static int wpa_bss_in_use(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
bss->ssid_len) != 0))
return 0; /* SSID has changed */
- return !is_zero_ether_addr(bss->bssid) &&
- (os_memcmp(bss->bssid, wpa_s->bssid, ETH_ALEN) == 0 ||
- os_memcmp(bss->bssid, wpa_s->pending_bssid, ETH_ALEN) == 0);
+ if (!is_zero_ether_addr(bss->bssid) &&
+ (os_memcmp(bss->bssid, wpa_s->bssid, ETH_ALEN) == 0 ||
+ os_memcmp(bss->bssid, wpa_s->pending_bssid, ETH_ALEN) == 0))
+ return 1;
+
+ if (!wpa_s->valid_links)
+ return 0;
+
+ for (i = 0; i < MAX_NUM_MLD_LINKS; i++) {
+ if (!(wpa_s->valid_links & BIT(i)))
+ continue;
+
+ if (os_memcmp(bss->bssid, wpa_s->links[i].bssid, ETH_ALEN) == 0)
+ return 1;
+ }
+
+ return 0;
}
diff --git a/wpa_supplicant/driver_i.h b/wpa_supplicant/driver_i.h
index b0af1cd..e202590 100644
--- a/wpa_supplicant/driver_i.h
+++ b/wpa_supplicant/driver_i.h
@@ -1117,4 +1117,14 @@ static inline int wpa_drv_dpp_listen(struct wpa_supplicant *wpa_s, bool enable)
return wpa_s->driver->dpp_listen(wpa_s->drv_priv, enable);
}
+static inline int
+wpas_drv_get_sta_mlo_info(struct wpa_supplicant *wpa_s,
+ struct driver_sta_mlo_info *mlo_info)
+{
+ if (!wpa_s->driver->get_sta_mlo_info)
+ return 0;
+
+ return wpa_s->driver->get_sta_mlo_info(wpa_s->drv_priv, mlo_info);
+}
+
#endif /* DRIVER_I_H */
diff --git a/wpa_supplicant/events.c b/wpa_supplicant/events.c
index ec56cfd..0eab93d 100644
--- a/wpa_supplicant/events.c
+++ b/wpa_supplicant/events.c
@@ -166,6 +166,20 @@ wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s, const u8 *bssid)
return bss;
}
+static void wpa_supplicant_update_link_bss(struct wpa_supplicant *wpa_s,
+ u8 link_id,
+ const u8 *bssid)
+{
+ struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
+
+ if (!bss) {
+ wpa_supplicant_update_scan_results(wpa_s);
+ bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
+ }
+
+ if (bss)
+ wpa_s->links[link_id].bss = bss;
+}
static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
{
@@ -285,6 +299,19 @@ void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
}
+static void wpas_reset_mlo_info(struct wpa_supplicant *wpa_s)
+{
+ int i;
+
+ if (!wpa_s->valid_links)
+ return;
+
+ wpa_s->valid_links = 0;
+ for (i = 0; i < MAX_NUM_MLD_LINKS; i++)
+ wpa_s->links[i].bss = NULL;
+}
+
+
void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
{
int bssid_changed;
@@ -351,6 +378,8 @@ void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
if (wpa_s->enabled_4addr_mode && wpa_drv_set_4addr_mode(wpa_s, 0) == 0)
wpa_s->enabled_4addr_mode = 0;
+
+ wpas_reset_mlo_info(wpa_s);
}
@@ -3302,6 +3331,62 @@ static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
}
+static int wpas_update_mlo_info(struct wpa_supplicant *wpa_s)
+{
+ struct driver_sta_mlo_info mlo;
+ int i;
+
+ mlo.valid_links = 0;
+ if (wpas_drv_get_sta_mlo_info(wpa_s, &mlo)) {
+ wpa_dbg(wpa_s, MSG_ERROR, "Failed to get MLO link info");
+ wpa_supplicant_deauthenticate(
+ wpa_s, WLAN_REASON_DEAUTH_LEAVING);
+ return -1;
+ }
+
+ if (wpa_s->valid_links == mlo.valid_links) {
+ bool match = true;
+
+ if (!mlo.valid_links)
+ return 0;
+
+ for (i = 0; i < MAX_NUM_MLD_LINKS; i++) {
+ if (!(mlo.valid_links & BIT(i)))
+ continue;
+
+ if (os_memcmp(wpa_s->links[i].addr, mlo.links[i].addr,
+ ETH_ALEN)) {
+ match = false;
+ break;
+ }
+
+ if (os_memcmp(wpa_s->links[i].bssid, mlo.links[i].bssid,
+ ETH_ALEN)) {
+ match = false;
+ break;
+ }
+ }
+
+ if (match &&
+ !os_memcmp(wpa_s->ap_mld_addr, mlo.ap_mld_addr, ETH_ALEN))
+ return 0;
+ }
+
+ wpa_s->valid_links = mlo.valid_links;
+ os_memcpy(wpa_s->ap_mld_addr, mlo.ap_mld_addr, ETH_ALEN);
+ for (i = 0; i < MAX_NUM_MLD_LINKS; i++) {
+ if (!(wpa_s->valid_links & BIT(i)))
+ continue;
+
+ os_memcpy(wpa_s->links[i].addr, mlo.links[i].addr, ETH_ALEN);
+ os_memcpy(wpa_s->links[i].bssid, mlo.links[i].bssid, ETH_ALEN);
+ wpa_supplicant_update_link_bss(wpa_s, i, mlo.links[i].bssid);
+ }
+
+ return 0;
+}
+
+
static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
@@ -3402,6 +3487,10 @@ static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
"WPA/RSN IEs not updated");
}
+ if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
+ wpas_update_mlo_info(wpa_s) < 0)
+ return;
+
wpas_fst_update_mb_assoc(wpa_s, data);
#ifdef CONFIG_SME
diff --git a/wpa_supplicant/wpa_supplicant_i.h b/wpa_supplicant/wpa_supplicant_i.h
index a349d65..23d418e 100644
--- a/wpa_supplicant/wpa_supplicant_i.h
+++ b/wpa_supplicant/wpa_supplicant_i.h
@@ -739,6 +739,13 @@ struct wpa_supplicant {
struct wpa_bss *current_bss;
int ap_ies_from_associnfo;
unsigned int assoc_freq;
+ u8 ap_mld_addr[ETH_ALEN];
+ u8 valid_links;
+ struct {
+ u8 addr[ETH_ALEN];
+ u8 bssid[ETH_ALEN];
+ struct wpa_bss *bss;
+ } links[MAX_NUM_MLD_LINKS];
u8 *last_con_fail_realm;
size_t last_con_fail_realm_len;
--
2.7.4
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