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rtw_mesh.c
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/******************************************************************************
*
* Copyright(c) 2007 - 2017 Realtek Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
*****************************************************************************/
#define _RTW_MESH_C_
#ifdef CONFIG_RTW_MESH
#include <drv_types.h>
const char *_rtw_mesh_plink_str[] = {
"UNKNOWN",
"LISTEN",
"OPN_SNT",
"OPN_RCVD",
"CNF_RCVD",
"ESTAB",
"HOLDING",
"BLOCKED",
};
const char *_rtw_mesh_ps_str[] = {
"UNKNOWN",
"ACTIVE",
"LSLEEP",
"DSLEEP",
};
const char *_action_self_protected_str[] = {
"ACT_SELF_PROTECTED_RSVD",
"MESH_OPEN",
"MESH_CONF",
"MESH_CLOSE",
"MESH_GK_INFORM",
"MESH_GK_ACK",
};
inline u8 *rtw_set_ie_mesh_id(u8 *buf, u32 *buf_len, const char *mesh_id, u8 id_len)
{
return rtw_set_ie(buf, WLAN_EID_MESH_ID, id_len, mesh_id, buf_len);
}
inline u8 *rtw_set_ie_mesh_config(u8 *buf, u32 *buf_len
, u8 path_sel_proto, u8 path_sel_metric, u8 congest_ctl_mode, u8 sync_method, u8 auth_proto
, u8 num_of_peerings, bool cto_mgate, bool cto_as
, bool accept_peerings, bool mcca_sup, bool mcca_en, bool forwarding
, bool mbca_en, bool tbtt_adj, bool ps_level)
{
u8 conf[7] = {0};
SET_MESH_CONF_ELE_PATH_SEL_PROTO_ID(conf, path_sel_proto);
SET_MESH_CONF_ELE_PATH_SEL_METRIC_ID(conf, path_sel_metric);
SET_MESH_CONF_ELE_CONGEST_CTRL_MODE_ID(conf, congest_ctl_mode);
SET_MESH_CONF_ELE_SYNC_METHOD_ID(conf, sync_method);
SET_MESH_CONF_ELE_AUTH_PROTO_ID(conf, auth_proto);
SET_MESH_CONF_ELE_CTO_MGATE(conf, cto_mgate);
SET_MESH_CONF_ELE_NUM_OF_PEERINGS(conf, num_of_peerings);
SET_MESH_CONF_ELE_CTO_AS(conf, cto_as);
SET_MESH_CONF_ELE_ACCEPT_PEERINGS(conf, accept_peerings);
SET_MESH_CONF_ELE_MCCA_SUP(conf, mcca_sup);
SET_MESH_CONF_ELE_MCCA_EN(conf, mcca_en);
SET_MESH_CONF_ELE_FORWARDING(conf, forwarding);
SET_MESH_CONF_ELE_MBCA_EN(conf, mbca_en);
SET_MESH_CONF_ELE_TBTT_ADJ(conf, tbtt_adj);
SET_MESH_CONF_ELE_PS_LEVEL(conf, ps_level);
return rtw_set_ie(buf, WLAN_EID_MESH_CONFIG, 7, conf, buf_len);
}
inline u8 *rtw_set_ie_mpm(u8 *buf, u32 *buf_len
, u8 proto_id, u16 llid, u16 *plid, u16 *reason, u8 *chosen_pmk)
{
u8 data[24] = {0};
u8 *pos = data;
RTW_PUT_LE16(pos, proto_id);
pos += 2;
RTW_PUT_LE16(pos, llid);
pos += 2;
if (plid) {
RTW_PUT_LE16(pos, *plid);
pos += 2;
}
if (reason) {
RTW_PUT_LE16(pos, *reason);
pos += 2;
}
if (chosen_pmk) {
_rtw_memcpy(pos, chosen_pmk, 16);
pos += 16;
}
return rtw_set_ie(buf, WLAN_EID_MPM, pos - data, data, buf_len);
}
bool rtw_bss_is_forwarding(WLAN_BSSID_EX *bss)
{
u8 *ie;
int ie_len;
bool ret = 0;
ie = rtw_get_ie(BSS_EX_TLV_IES(bss), WLAN_EID_MESH_CONFIG, &ie_len,
BSS_EX_TLV_IES_LEN(bss));
if (!ie || ie_len != 7)
goto exit;
ret = GET_MESH_CONF_ELE_FORWARDING(ie + 2);
exit:
return ret;
}
bool rtw_bss_is_cto_mgate(WLAN_BSSID_EX *bss)
{
u8 *ie;
int ie_len;
bool ret = 0;
ie = rtw_get_ie(BSS_EX_TLV_IES(bss), WLAN_EID_MESH_CONFIG, &ie_len,
BSS_EX_TLV_IES_LEN(bss));
if (!ie || ie_len != 7)
goto exit;
ret = GET_MESH_CONF_ELE_CTO_MGATE(ie + 2);
exit:
return ret;
}
int rtw_bss_is_same_mbss(WLAN_BSSID_EX *a, WLAN_BSSID_EX *b)
{
int ret = 0;
u8 *a_mconf_ie, *b_mconf_ie;
sint a_mconf_ie_len, b_mconf_ie_len;
if (a->InfrastructureMode != Ndis802_11_mesh)
goto exit;
a_mconf_ie = rtw_get_ie(BSS_EX_TLV_IES(a), WLAN_EID_MESH_CONFIG, &a_mconf_ie_len, BSS_EX_TLV_IES_LEN(a));
if (!a_mconf_ie || a_mconf_ie_len != 7)
goto exit;
if (b->InfrastructureMode != Ndis802_11_mesh)
goto exit;
b_mconf_ie = rtw_get_ie(BSS_EX_TLV_IES(b), WLAN_EID_MESH_CONFIG, &b_mconf_ie_len, BSS_EX_TLV_IES_LEN(b));
if (!b_mconf_ie || b_mconf_ie_len != 7)
goto exit;
if (a->mesh_id.SsidLength != b->mesh_id.SsidLength
|| _rtw_memcmp(a->mesh_id.Ssid, b->mesh_id.Ssid, a->mesh_id.SsidLength) == _FALSE)
goto exit;
if (_rtw_memcmp(a_mconf_ie + 2, b_mconf_ie + 2, 5) == _FALSE)
goto exit;
ret = 1;
exit:
return ret;
}
int rtw_bss_is_candidate_mesh_peer(WLAN_BSSID_EX *self, WLAN_BSSID_EX *target, u8 ch, u8 add_peer)
{
int ret = 0;
u8 *mconf_ie;
sint mconf_ie_len;
int i, j;
if (!rtw_bss_is_same_mbss(self, target))
goto exit;
if (ch && self->Configuration.DSConfig != target->Configuration.DSConfig)
goto exit;
if (add_peer) {
/* Accept additional mesh peerings */
mconf_ie = rtw_get_ie(BSS_EX_TLV_IES(target), WLAN_EID_MESH_CONFIG, &mconf_ie_len, BSS_EX_TLV_IES_LEN(target));
if (!mconf_ie || mconf_ie_len != 7)
goto exit;
if (GET_MESH_CONF_ELE_ACCEPT_PEERINGS(mconf_ie + 2) == 0)
goto exit;
}
/* BSSBasicRateSet */
for (i = 0; i < NDIS_802_11_LENGTH_RATES_EX; i++) {
if (target->SupportedRates[i] == 0)
break;
if (target->SupportedRates[i] & 0x80) {
u8 match = 0;
if (!ch) {
/* off-channel, check target with our hardcode capability */
if (target->Configuration.DSConfig > 14)
match = rtw_is_basic_rate_ofdm(target->SupportedRates[i]);
else
match = rtw_is_basic_rate_mix(target->SupportedRates[i]);
} else {
for (j = 0; j < NDIS_802_11_LENGTH_RATES_EX; j++) {
if (self->SupportedRates[j] == 0)
break;
if (self->SupportedRates[j] == target->SupportedRates[i]) {
match = 1;
break;
}
}
}
if (!match)
goto exit;
}
}
/* BSSBasicMCSSet */
/* 802.1X connected to AS ? */
ret = 1;
exit:
return ret;
}
#if CONFIG_RTW_MESH_PEER_BLACKLIST
int rtw_mesh_peer_blacklist_add(_adapter *adapter, const u8 *addr)
{
struct rtw_mesh_cfg *mcfg = &adapter->mesh_cfg;
struct rtw_mesh_info *minfo = &adapter->mesh_info;
struct mesh_plink_pool *plink_ctl = &minfo->plink_ctl;
return rtw_blacklist_add(&plink_ctl->peer_blacklist, addr
, mcfg->peer_sel_policy.peer_blacklist_timeout_ms);
}
int rtw_mesh_peer_blacklist_del(_adapter *adapter, const u8 *addr)
{
struct rtw_mesh_info *minfo = &adapter->mesh_info;
struct mesh_plink_pool *plink_ctl = &minfo->plink_ctl;
return rtw_blacklist_del(&plink_ctl->peer_blacklist, addr);
}
int rtw_mesh_peer_blacklist_search(_adapter *adapter, const u8 *addr)
{
struct rtw_mesh_info *minfo = &adapter->mesh_info;
struct mesh_plink_pool *plink_ctl = &minfo->plink_ctl;
return rtw_blacklist_search(&plink_ctl->peer_blacklist, addr);
}
void rtw_mesh_peer_blacklist_flush(_adapter *adapter)
{
struct rtw_mesh_info *minfo = &adapter->mesh_info;
struct mesh_plink_pool *plink_ctl = &minfo->plink_ctl;
rtw_blacklist_flush(&plink_ctl->peer_blacklist);
}
void dump_mesh_peer_blacklist(void *sel, _adapter *adapter)
{
struct rtw_mesh_info *minfo = &adapter->mesh_info;
struct mesh_plink_pool *plink_ctl = &minfo->plink_ctl;
dump_blacklist(sel, &plink_ctl->peer_blacklist, "blacklist");
}
void dump_mesh_peer_blacklist_settings(void *sel, _adapter *adapter)
{
struct mesh_peer_sel_policy *peer_sel_policy = &adapter->mesh_cfg.peer_sel_policy;
RTW_PRINT_SEL(sel, "%-12s %-17s\n"
, "conf_timeout", "blacklist_timeout");
RTW_PRINT_SEL(sel, "%12u %17u\n"
, peer_sel_policy->peer_conf_timeout_ms
, peer_sel_policy->peer_blacklist_timeout_ms);
}
#endif /* CONFIG_RTW_MESH_PEER_BLACKLIST */
#if CONFIG_RTW_MESH_CTO_MGATE_BLACKLIST
u8 rtw_mesh_cto_mgate_required(_adapter *adapter)
{
struct rtw_mesh_cfg *mcfg = &adapter->mesh_cfg;
struct mlme_ext_priv *mlmeext = &adapter->mlmeextpriv;
return mcfg->peer_sel_policy.cto_mgate_require
&& !rtw_bss_is_cto_mgate(&(mlmeext->mlmext_info.network));
}
u8 rtw_mesh_cto_mgate_network_filter(_adapter *adapter, struct wlan_network *scanned)
{
struct rtw_mesh_cfg *mcfg = &adapter->mesh_cfg;
struct mlme_ext_priv *mlmeext = &adapter->mlmeextpriv;
return !rtw_mesh_cto_mgate_required(adapter)
|| (rtw_bss_is_cto_mgate(&scanned->network)
&& !rtw_mesh_cto_mgate_blacklist_search(adapter, scanned->network.MacAddress));
}
int rtw_mesh_cto_mgate_blacklist_add(_adapter *adapter, const u8 *addr)
{
struct rtw_mesh_cfg *mcfg = &adapter->mesh_cfg;
struct rtw_mesh_info *minfo = &adapter->mesh_info;
struct mesh_plink_pool *plink_ctl = &minfo->plink_ctl;
return rtw_blacklist_add(&plink_ctl->cto_mgate_blacklist, addr
, mcfg->peer_sel_policy.cto_mgate_blacklist_timeout_ms);
}
int rtw_mesh_cto_mgate_blacklist_del(_adapter *adapter, const u8 *addr)
{
struct rtw_mesh_info *minfo = &adapter->mesh_info;
struct mesh_plink_pool *plink_ctl = &minfo->plink_ctl;
return rtw_blacklist_del(&plink_ctl->cto_mgate_blacklist, addr);
}
int rtw_mesh_cto_mgate_blacklist_search(_adapter *adapter, const u8 *addr)
{
struct rtw_mesh_info *minfo = &adapter->mesh_info;
struct mesh_plink_pool *plink_ctl = &minfo->plink_ctl;
return rtw_blacklist_search(&plink_ctl->cto_mgate_blacklist, addr);
}
void rtw_mesh_cto_mgate_blacklist_flush(_adapter *adapter)
{
struct rtw_mesh_info *minfo = &adapter->mesh_info;
struct mesh_plink_pool *plink_ctl = &minfo->plink_ctl;
rtw_blacklist_flush(&plink_ctl->cto_mgate_blacklist);
}
void dump_mesh_cto_mgate_blacklist(void *sel, _adapter *adapter)
{
struct rtw_mesh_info *minfo = &adapter->mesh_info;
struct mesh_plink_pool *plink_ctl = &minfo->plink_ctl;
dump_blacklist(sel, &plink_ctl->cto_mgate_blacklist, "blacklist");
}
void dump_mesh_cto_mgate_blacklist_settings(void *sel, _adapter *adapter)
{
struct mesh_peer_sel_policy *peer_sel_policy = &adapter->mesh_cfg.peer_sel_policy;
RTW_PRINT_SEL(sel, "%-12s %-17s\n"
, "conf_timeout", "blacklist_timeout");
RTW_PRINT_SEL(sel, "%12u %17u\n"
, peer_sel_policy->cto_mgate_conf_timeout_ms
, peer_sel_policy->cto_mgate_blacklist_timeout_ms);
}
static void rtw_mesh_cto_mgate_blacklist_chk(_adapter *adapter)
{
struct rtw_mesh_info *minfo = &adapter->mesh_info;
struct mesh_plink_pool *plink_ctl = &minfo->plink_ctl;
_queue *blist = &plink_ctl->cto_mgate_blacklist;
_list *list, *head;
struct blacklist_ent *ent = NULL;
struct wlan_network *scanned = NULL;
enter_critical_bh(&blist->lock);
head = &blist->queue;
list = get_next(head);
while (rtw_end_of_queue_search(head, list) == _FALSE) {
ent = LIST_CONTAINOR(list, struct blacklist_ent, list);
list = get_next(list);
if (rtw_time_after(rtw_get_current_time(), ent->exp_time)) {
rtw_list_delete(&ent->list);
rtw_mfree(ent, sizeof(struct blacklist_ent));
continue;
}
scanned = rtw_find_network(&adapter->mlmepriv.scanned_queue, ent->addr);
if (!scanned)
continue;
if (rtw_bss_is_forwarding(&scanned->network)) {
rtw_list_delete(&ent->list);
rtw_mfree(ent, sizeof(struct blacklist_ent));
}
}
exit_critical_bh(&blist->lock);
}
#endif /* CONFIG_RTW_MESH_CTO_MGATE_BLACKLIST */
void rtw_chk_candidate_peer_notify(_adapter *adapter, struct wlan_network *scanned)
{
struct rf_ctl_t *rfctl = adapter_to_rfctl(adapter);
struct mlme_priv *mlme = &adapter->mlmepriv;
struct rtw_mesh_info *minfo = &adapter->mesh_info;
struct rtw_mesh_cfg *mcfg = &adapter->mesh_cfg;
struct mesh_plink_pool *plink_ctl = &minfo->plink_ctl;
if (IS_CH_WAITING(rfctl) && !IS_UNDER_CAC(rfctl))
goto exit;
if (plink_ctl->num >= RTW_MESH_MAX_PEER_CANDIDATES)
goto exit;
/* wpa_supplicant's auto peer will initiate peering when candidate peer is reported without max_peer_links consideration */
if (plink_ctl->num >= mcfg->max_peer_links)
goto exit;
if (rtw_get_passing_time_ms(scanned->last_scanned) >= mcfg->peer_sel_policy.scanr_exp_ms
|| (mcfg->rssi_threshold && mcfg->rssi_threshold > scanned->network.Rssi)
|| !rtw_bss_is_candidate_mesh_peer(&mlme->cur_network.network, &scanned->network, 1, 1)
#if CONFIG_RTW_MACADDR_ACL
|| rtw_access_ctrl(adapter, scanned->network.MacAddress) == _FALSE
#endif
|| rtw_mesh_plink_get(adapter, scanned->network.MacAddress)
#if CONFIG_RTW_MESH_PEER_BLACKLIST
|| rtw_mesh_peer_blacklist_search(adapter, scanned->network.MacAddress)
#endif
#if CONFIG_RTW_MESH_CTO_MGATE_BLACKLIST
|| !rtw_mesh_cto_mgate_network_filter(adapter, scanned)
#endif
)
goto exit;
#ifdef CONFIG_IOCTL_CFG80211
rtw_cfg80211_notify_new_peer_candidate(adapter->rtw_wdev
, scanned->network.MacAddress
, BSS_EX_TLV_IES(&scanned->network)
, BSS_EX_TLV_IES_LEN(&scanned->network)
, GFP_ATOMIC
);
#endif
exit:
return;
}
void rtw_mesh_peer_status_chk(_adapter *adapter)
{
struct mlme_priv *mlme = &adapter->mlmepriv;
struct rtw_mesh_cfg *mcfg = &adapter->mesh_cfg;
struct rtw_mesh_info *minfo = &adapter->mesh_info;
struct mesh_plink_pool *plink_ctl = &minfo->plink_ctl;
struct mesh_plink_ent *plink;
_list *head, *list;
struct sta_info *sta = NULL;
struct sta_priv *stapriv = &adapter->stapriv;
int stainfo_offset;
#if CONFIG_RTW_MESH_CTO_MGATE_BLACKLIST
u8 cto_mgate, forwarding, mgate;
#endif
u8 flush;
char flush_list[NUM_STA];
u8 flush_num = 0;
int i;
#if CONFIG_RTW_MESH_CTO_MGATE_BLACKLIST
if (rtw_mesh_cto_mgate_required(adapter)) {
/* active scan on operating channel */
issue_probereq_ex(adapter, &adapter->mlmepriv.cur_network.network.mesh_id, NULL, 0, 0, 0, 0);
}
#endif
enter_critical_bh(&(plink_ctl->lock));
/* check established peers */
enter_critical_bh(&stapriv->asoc_list_lock);
head = &stapriv->asoc_list;
list = get_next(head);
while (rtw_end_of_queue_search(head, list) == _FALSE) {
sta = LIST_CONTAINOR(list, struct sta_info, asoc_list);
list = get_next(list);
if (!sta->plink || !sta->plink->scanned) {
rtw_warn_on(1);
continue;
}
plink = sta->plink;
flush = 0;
/* remove unsuitable peer */
if (!rtw_bss_is_candidate_mesh_peer(&mlme->cur_network.network, &plink->scanned->network, 1, 0)
#if CONFIG_RTW_MACADDR_ACL
|| rtw_access_ctrl(adapter, plink->addr) == _FALSE
#endif
) {
flush = 1;
goto flush_add;
}
#if CONFIG_RTW_MESH_CTO_MGATE_BLACKLIST
cto_mgate = rtw_bss_is_cto_mgate(&(plink->scanned->network));
forwarding = rtw_bss_is_forwarding(&(plink->scanned->network));
mgate = rtw_mesh_gate_search(minfo->mesh_paths, sta->cmn.mac_addr);
/* CTO_MGATE required, remove peer without CTO_MGATE */
if (rtw_mesh_cto_mgate_required(adapter) && !cto_mgate) {
flush = 1;
goto flush_add;
}
/* cto_mgate_conf status update */
if (IS_CTO_MGATE_CONF_DISABLED(plink)) {
if (cto_mgate && !forwarding && !mgate)
SET_CTO_MGATE_CONF_END_TIME(plink, mcfg->peer_sel_policy.cto_mgate_conf_timeout_ms);
else
rtw_mesh_cto_mgate_blacklist_del(adapter, sta->cmn.mac_addr);
} else {
/* cto_mgate_conf ongoing */
if (cto_mgate && !forwarding && !mgate) {
if (IS_CTO_MGATE_CONF_TIMEOUT(plink)) {
rtw_mesh_cto_mgate_blacklist_add(adapter, sta->cmn.mac_addr);
/* CTO_MGATE required, remove peering can't achieve CTO_MGATE */
if (rtw_mesh_cto_mgate_required(adapter)) {
flush = 1;
goto flush_add;
}
}
} else {
SET_CTO_MGATE_CONF_DISABLED(plink);
rtw_mesh_cto_mgate_blacklist_del(adapter, sta->cmn.mac_addr);
}
}
#endif /* CONFIG_RTW_MESH_CTO_MGATE_BLACKLIST */
flush_add:
if (flush) {
rtw_list_delete(&sta->asoc_list);
stapriv->asoc_list_cnt--;
STA_SET_MESH_PLINK(sta, NULL);
stainfo_offset = rtw_stainfo_offset(stapriv, sta);
if (stainfo_offset_valid(stainfo_offset))
flush_list[flush_num++] = stainfo_offset;
else
rtw_warn_on(1);
}
}
exit_critical_bh(&stapriv->asoc_list_lock);
/* check non-established peers */
for (i = 0; i < RTW_MESH_MAX_PEER_CANDIDATES; i++) {
plink = &plink_ctl->ent[i];
if (plink->valid != _TRUE || plink->plink_state == RTW_MESH_PLINK_ESTAB)
continue;
/* remove unsuitable peer */
if (!rtw_bss_is_candidate_mesh_peer(&mlme->cur_network.network, &plink->scanned->network, 1, 1)
#if CONFIG_RTW_MACADDR_ACL
|| rtw_access_ctrl(adapter, plink->addr) == _FALSE
#endif
) {
_rtw_mesh_expire_peer_ent(adapter, plink);
continue;
}
#if CONFIG_RTW_MESH_PEER_BLACKLIST
/* peer confirm check timeout, add to black list */
if (IS_PEER_CONF_TIMEOUT(plink)) {
rtw_mesh_peer_blacklist_add(adapter, plink->addr);
_rtw_mesh_expire_peer_ent(adapter, plink);
}
#endif
}
exit_critical_bh(&(plink_ctl->lock));
for (i = 0; i < flush_num; i++) {
u8 sta_addr[ETH_ALEN];
sta = rtw_get_stainfo_by_offset(stapriv, flush_list[i]);
_rtw_memcpy(sta_addr, sta->cmn.mac_addr, ETH_ALEN);
ap_free_sta(adapter, sta, _TRUE, WLAN_REASON_DEAUTH_LEAVING, _FALSE);
rtw_mesh_expire_peer(adapter, sta_addr);
}
#if CONFIG_RTW_MESH_CTO_MGATE_BLACKLIST
/* loop cto_mgate_blacklist to remove ent according to scan_r */
rtw_mesh_cto_mgate_blacklist_chk(adapter);
#endif
return;
}
#if CONFIG_RTW_MESH_OFFCH_CAND
static u8 rtw_mesh_offch_cto_mgate_required(_adapter *adapter)
{
#if CONFIG_RTW_MESH_CTO_MGATE_BLACKLIST
struct rtw_mesh_cfg *mcfg = &adapter->mesh_cfg;
struct mlme_priv *mlme = &adapter->mlmepriv;
_queue *queue = &(mlme->scanned_queue);
_list *head, *pos;
struct wlan_network *scanned = NULL;
u8 ret = 0;
if (!rtw_mesh_cto_mgate_required(adapter))
goto exit;
enter_critical_bh(&(mlme->scanned_queue.lock));
head = get_list_head(queue);
pos = get_next(head);
while (!rtw_end_of_queue_search(head, pos)) {
scanned = LIST_CONTAINOR(pos, struct wlan_network, list);
if (rtw_get_passing_time_ms(scanned->last_scanned) < mcfg->peer_sel_policy.scanr_exp_ms
&& (!mcfg->rssi_threshold || mcfg->rssi_threshold <= scanned->network.Rssi)
#if CONFIG_RTW_MACADDR_ACL
&& rtw_access_ctrl(adapter, scanned->network.MacAddress) == _TRUE
#endif
&& rtw_bss_is_candidate_mesh_peer(&mlme->cur_network.network, &scanned->network, 1, 1)
&& rtw_bss_is_cto_mgate(&scanned->network)
#if CONFIG_RTW_MESH_PEER_BLACKLIST
&& !rtw_mesh_peer_blacklist_search(adapter, scanned->network.MacAddress)
#endif
&& !rtw_mesh_cto_mgate_blacklist_search(adapter, scanned->network.MacAddress)
)
break;
pos = get_next(pos);
}
if (rtw_end_of_queue_search(head, pos))
ret = 1;
exit_critical_bh(&(mlme->scanned_queue.lock));
exit:
return ret;
#else
return 0;
#endif /* CONFIG_RTW_MESH_CTO_MGATE_BLACKLIST */
}
u8 rtw_mesh_offch_candidate_accepted(_adapter *adapter)
{
struct rtw_mesh_info *minfo = &adapter->mesh_info;
struct mesh_plink_pool *plink_ctl = &minfo->plink_ctl;
u8 ret = 0;
if (!adapter->mesh_cfg.peer_sel_policy.offch_cand)
goto exit;
ret = MLME_IS_MESH(adapter) && MLME_IS_ASOC(adapter)
&& (!plink_ctl->num || rtw_mesh_offch_cto_mgate_required(adapter))
;
#ifdef CONFIG_CONCURRENT_MODE
if (ret) {
struct mi_state mstate_no_self;
rtw_mi_status_no_self(adapter, &mstate_no_self);
if (MSTATE_STA_LD_NUM(&mstate_no_self))
ret = 0;
}
#endif
exit:
return ret;
}
/*
* this function is called under off channel candidate is required
* the channel with maximum candidate count is selected
*/
u8 rtw_mesh_select_operating_ch(_adapter *adapter)
{
struct rf_ctl_t *rfctl = adapter_to_rfctl(adapter);
struct rtw_mesh_cfg *mcfg = &adapter->mesh_cfg;
struct mlme_priv *mlme = &adapter->mlmepriv;
_queue *queue = &(mlme->scanned_queue);
_list *head, *pos;
_irqL irqL;
struct wlan_network *scanned = NULL;
int i;
u8 max_cand_ch = 0;
u8 max_cand_cnt = 0;
for (i = 0; i < rfctl->max_chan_nums; i++)
rfctl->channel_set[i].mesh_candidate_cnt = 0;
_enter_critical_bh(&(mlme->scanned_queue.lock), &irqL);
head = get_list_head(queue);
pos = get_next(head);
while (!rtw_end_of_queue_search(head, pos)) {
scanned = LIST_CONTAINOR(pos, struct wlan_network, list);
pos = get_next(pos);
if (rtw_get_passing_time_ms(scanned->last_scanned) < mcfg->peer_sel_policy.scanr_exp_ms
&& (!mcfg->rssi_threshold || mcfg->rssi_threshold <= scanned->network.Rssi)
#if CONFIG_RTW_MACADDR_ACL
&& rtw_access_ctrl(adapter, scanned->network.MacAddress) == _TRUE
#endif
&& rtw_bss_is_candidate_mesh_peer(&mlme->cur_network.network, &scanned->network, 0, 1)
#if CONFIG_RTW_MESH_PEER_BLACKLIST
&& !rtw_mesh_peer_blacklist_search(adapter, scanned->network.MacAddress)
#endif
#if CONFIG_RTW_MESH_CTO_MGATE_BLACKLIST
&& rtw_mesh_cto_mgate_network_filter(adapter, scanned)
#endif
) {
int ch_set_idx = rtw_chset_search_ch(rfctl->channel_set, scanned->network.Configuration.DSConfig);
if (ch_set_idx >= 0
&& !CH_IS_NON_OCP(&rfctl->channel_set[ch_set_idx])
) {
rfctl->channel_set[ch_set_idx].mesh_candidate_cnt++;
if (max_cand_cnt < rfctl->channel_set[ch_set_idx].mesh_candidate_cnt) {
max_cand_cnt = rfctl->channel_set[ch_set_idx].mesh_candidate_cnt;
max_cand_ch = rfctl->channel_set[ch_set_idx].ChannelNum;
}
}
}
}
_exit_critical_bh(&(mlme->scanned_queue.lock), &irqL);
return max_cand_ch;
}
void dump_mesh_offch_cand_settings(void *sel, _adapter *adapter)
{
struct mesh_peer_sel_policy *peer_sel_policy = &adapter->mesh_cfg.peer_sel_policy;
RTW_PRINT_SEL(sel, "%-6s %-11s\n"
, "enable", "find_int_ms");
RTW_PRINT_SEL(sel, "%6u %11u\n"
, peer_sel_policy->offch_cand, peer_sel_policy->offch_find_int_ms);
}
#endif /* CONFIG_RTW_MESH_OFFCH_CAND */
void dump_mesh_peer_sel_policy(void *sel, _adapter *adapter)
{
struct mesh_peer_sel_policy *peer_sel_policy = &adapter->mesh_cfg.peer_sel_policy;
RTW_PRINT_SEL(sel, "%-12s\n", "scanr_exp_ms");
RTW_PRINT_SEL(sel, "%12u\n", peer_sel_policy->scanr_exp_ms);
}
void dump_mesh_networks(void *sel, _adapter *adapter)
{
struct mlme_priv *mlme = &(adapter->mlmepriv);
_queue *queue = &(mlme->scanned_queue);
struct wlan_network *network;
_list *list, *head;
u8 same_mbss;
u8 candidate;
struct mesh_plink_ent *plink;
u8 blocked;
u8 established;
s32 age_ms;
u8 *mesh_conf_ie;
sint mesh_conf_ie_len;
struct wlan_network **mesh_networks;
u8 mesh_network_cnt = 0;
int i;
mesh_networks = rtw_zvmalloc(mlme->max_bss_cnt * sizeof(struct wlan_network *));
if (!mesh_networks)
return;
enter_critical_bh(&queue->lock);
head = get_list_head(queue);
list = get_next(head);
while (rtw_end_of_queue_search(head, list) == _FALSE) {
network = LIST_CONTAINOR(list, struct wlan_network, list);
list = get_next(list);
if (network->network.InfrastructureMode != Ndis802_11_mesh)
continue;
mesh_conf_ie = rtw_get_ie(BSS_EX_TLV_IES(&network->network), WLAN_EID_MESH_CONFIG
, &mesh_conf_ie_len, BSS_EX_TLV_IES_LEN(&network->network));
if (!mesh_conf_ie || mesh_conf_ie_len != 7)
continue;
mesh_networks[mesh_network_cnt++] = network;
}
exit_critical_bh(&queue->lock);
RTW_PRINT_SEL(sel, " %-17s %-3s %-4s %-5s %-32s %-3s %-3s %-3s\n"
, "bssid", "ch", "rssi", "age", "mesh_id", "nop", "fwd", "cto");
for (i = 0; i < mesh_network_cnt; i++) {
network = mesh_networks[i];
if (network->network.InfrastructureMode != Ndis802_11_mesh)
continue;
mesh_conf_ie = rtw_get_ie(BSS_EX_TLV_IES(&network->network), WLAN_EID_MESH_CONFIG
, &mesh_conf_ie_len, BSS_EX_TLV_IES_LEN(&network->network));
if (!mesh_conf_ie || mesh_conf_ie_len != 7)
continue;
age_ms = rtw_get_passing_time_ms(network->last_scanned);
same_mbss = 0;
candidate = 0;
plink = NULL;
blocked = 0;
established = 0;
if (MLME_IS_MESH(adapter) && MLME_IS_ASOC(adapter)) {
plink = rtw_mesh_plink_get(adapter, network->network.MacAddress);
if (plink && plink->plink_state == RTW_MESH_PLINK_ESTAB)
established = 1;
else if (plink && plink->plink_state == RTW_MESH_PLINK_BLOCKED)
blocked = 1;
else if (plink)
;
else if (rtw_bss_is_candidate_mesh_peer(&mlme->cur_network.network, &network->network, 0, 1))
candidate = 1;
else if (rtw_bss_is_same_mbss(&mlme->cur_network.network, &network->network))
same_mbss = 1;
}
RTW_PRINT_SEL(sel, "%c "MAC_FMT" %3d %4ld %5d %-32s %c%2u %3u %c%c \n"
, established ? 'E' : (blocked ? 'B' : (plink ? 'N' : (candidate ? 'C' : (same_mbss ? 'S' : ' '))))
, MAC_ARG(network->network.MacAddress)
, network->network.Configuration.DSConfig
, network->network.Rssi
, age_ms < 99999 ? age_ms : 99999
, network->network.mesh_id.Ssid
, GET_MESH_CONF_ELE_ACCEPT_PEERINGS(mesh_conf_ie + 2) ? '+' : ' '
, GET_MESH_CONF_ELE_NUM_OF_PEERINGS(mesh_conf_ie + 2)
, GET_MESH_CONF_ELE_FORWARDING(mesh_conf_ie + 2)
, GET_MESH_CONF_ELE_CTO_MGATE(mesh_conf_ie + 2) ? 'G' : ' '
, GET_MESH_CONF_ELE_CTO_AS(mesh_conf_ie + 2) ? 'A' : ' '
);
}
rtw_vmfree(mesh_networks, mlme->max_bss_cnt * sizeof(struct wlan_network *));
}
void rtw_mesh_adjust_chbw(u8 req_ch, u8 *req_bw, u8 *req_offset)
{
if (req_ch >= 5 && req_ch <= 9) {
/* prevent secondary channel offset mismatch */
if (*req_bw > CHANNEL_WIDTH_20) {
*req_bw = CHANNEL_WIDTH_20;
*req_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
}
}
}
int rtw_sae_check_frames(_adapter *adapter, const u8 *buf, u32 len, u8 tx)
{
const u8 *frame_body = buf + sizeof(struct rtw_ieee80211_hdr_3addr);
u16 alg;
u16 seq;
u16 status;
int ret = 0;
alg = RTW_GET_LE16(frame_body);
if (alg != 3)
goto exit;
seq = RTW_GET_LE16(frame_body + 2);
status = RTW_GET_LE16(frame_body + 4);
RTW_INFO("RTW_%s:AUTH alg:0x%04x, seq:0x%04x, status:0x%04x\n"
, (tx == _TRUE) ? "Tx" : "Rx", alg, seq, status);
ret = 1;
#if CONFIG_RTW_MESH_PEER_BLACKLIST
if (tx && seq == 1)
rtw_mesh_plink_set_peer_conf_timeout(adapter, GetAddr1Ptr(buf));
#endif
exit:
return ret;
}
#if CONFIG_RTW_MPM_TX_IES_SYNC_BSS
#ifdef CONFIG_RTW_MESH_AEK
static int rtw_mpm_ampe_dec(_adapter *adapter, struct mesh_plink_ent *plink
, u8 *fhead, size_t flen, u8* fbody, u8 *mic_ie, u8 *ampe_buf)
{
int ret = _FAIL, verify_ret;
const u8 *aad[] = {adapter_mac_addr(adapter), plink->addr, fbody};
const size_t aad_len[] = {ETH_ALEN, ETH_ALEN, mic_ie - fbody};
u8 *iv_crypt;
size_t iv_crypt_len = flen - (mic_ie + 2 - fhead);
iv_crypt = rtw_malloc(iv_crypt_len);
if (!iv_crypt)
goto exit;
_rtw_memcpy(iv_crypt, mic_ie + 2, iv_crypt_len);
verify_ret = aes_siv_decrypt(plink->aek, iv_crypt, iv_crypt_len
, 3, aad, aad_len, ampe_buf);
rtw_mfree(iv_crypt, iv_crypt_len);
if (verify_ret) {
RTW_WARN("verify error, aek_valid=%u\n", plink->aek_valid);
goto exit;
} else if (*ampe_buf != WLAN_EID_AMPE) {
RTW_WARN("plaintext is not AMPE IE\n");
goto exit;
} else if (AES_BLOCK_SIZE + 2 + *(ampe_buf + 1) > iv_crypt_len) {
RTW_WARN("plaintext AMPE IE length is not valid\n");
goto exit;
}
ret = _SUCCESS;
exit:
return ret;
}
static int rtw_mpm_ampe_enc(_adapter *adapter, struct mesh_plink_ent *plink
, u8* fbody, u8 *mic_ie, u8 *ampe_buf, bool inverse)
{
int ret = _FAIL, protect_ret;
const u8 *aad[3];
const size_t aad_len[3] = {ETH_ALEN, ETH_ALEN, mic_ie - fbody};
u8 *ampe_ie;
size_t ampe_ie_len = *(ampe_buf + 1) + 2; /* including id & len */
if (inverse) {
aad[0] = plink->addr;
aad[1] = adapter_mac_addr(adapter);
} else {
aad[0] = adapter_mac_addr(adapter);
aad[1] = plink->addr;
}
aad[2] = fbody;
ampe_ie = rtw_malloc(ampe_ie_len);
if (!ampe_ie)
goto exit;
_rtw_memcpy(ampe_ie, ampe_buf, ampe_ie_len);
protect_ret = aes_siv_encrypt(plink->aek, ampe_ie, ampe_ie_len
, 3, aad, aad_len, mic_ie + 2);
rtw_mfree(ampe_ie, ampe_ie_len);
if (protect_ret) {
RTW_WARN("protect error, aek_valid=%u\n", plink->aek_valid);
goto exit;
}
ret = _SUCCESS;
exit:
return ret;
}
#endif /* CONFIG_RTW_MESH_AEK */
static int rtw_mpm_tx_ies_sync_bss(_adapter *adapter, struct mesh_plink_ent *plink
, u8 *fhead, size_t flen, u8* fbody, u8 tlv_ies_offset, u8 *mpm_ie, u8 *mic_ie
, u8 **nbuf, size_t *nlen)
{
int ret = _FAIL;
struct mlme_priv *mlme = &(adapter->mlmepriv);
struct mlme_ext_priv *mlmeext = &adapter->mlmeextpriv;
struct mlme_ext_info *mlmeinfo = &(mlmeext->mlmext_info);
WLAN_BSSID_EX *network = &(mlmeinfo->network);
uint left;
u8 *pos;
uint mpm_ielen = *(mpm_ie + 1);
u8 *fpos;
u8 *new_buf = NULL;
size_t new_len = 0;
u8 *new_fhead;
size_t new_flen;
u8 *new_fbody;
u8 *new_mic_ie;
#ifdef CONFIG_RTW_MESH_AEK
u8 *ampe_buf = NULL;
size_t ampe_buf_len = 0;
/* decode */
if (mic_ie) {
ampe_buf_len = flen - (mic_ie + 2 + AES_BLOCK_SIZE - fhead);