cfg80211: Move Multiple BSS info to struct cfg80211_bss to be visible
Previously the transmitted BSS and the non-trasmitted BSS list were defined in struct cfg80211_internal_bss. Move them to struct cfg80211_bss since mac80211 needs this info. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Sara Sharon
Johannes Berg
Родитель
a3584f56de
Коммит
7011ba583f
|
|
@ -6,7 +6,7 @@
|
|||
* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
|
||||
* Copyright 2013-2014 Intel Mobile Communications GmbH
|
||||
* Copyright 2015-2017 Intel Deutschland GmbH
|
||||
* Copyright (C) 2018 Intel Corporation
|
||||
* Copyright (C) 2018-2019 Intel Corporation
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
|
|
@ -2049,6 +2049,8 @@ struct cfg80211_bss {
|
|||
const struct cfg80211_bss_ies __rcu *proberesp_ies;
|
||||
|
||||
struct cfg80211_bss *hidden_beacon_bss;
|
||||
struct cfg80211_bss *transmitted_bss;
|
||||
struct list_head nontrans_list;
|
||||
|
||||
s32 signal;
|
||||
|
||||
|
|
|
|||
|
|
@ -152,8 +152,6 @@ extern int cfg80211_rdev_list_generation;
|
|||
struct cfg80211_internal_bss {
|
||||
struct list_head list;
|
||||
struct list_head hidden_list;
|
||||
struct list_head nontrans_list;
|
||||
struct cfg80211_bss *transmitted_bss;
|
||||
struct rb_node rbn;
|
||||
u64 ts_boottime;
|
||||
unsigned long ts;
|
||||
|
|
@ -184,8 +182,8 @@ static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pu
|
|||
static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
|
||||
{
|
||||
atomic_inc(&bss->hold);
|
||||
if (bss->transmitted_bss) {
|
||||
bss = container_of(bss->transmitted_bss,
|
||||
if (bss->pub.transmitted_bss) {
|
||||
bss = container_of(bss->pub.transmitted_bss,
|
||||
struct cfg80211_internal_bss, pub);
|
||||
atomic_inc(&bss->hold);
|
||||
}
|
||||
|
|
@ -195,8 +193,8 @@ static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
|
|||
{
|
||||
int r = atomic_dec_return(&bss->hold);
|
||||
WARN_ON(r < 0);
|
||||
if (bss->transmitted_bss) {
|
||||
bss = container_of(bss->transmitted_bss,
|
||||
if (bss->pub.transmitted_bss) {
|
||||
bss = container_of(bss->pub.transmitted_bss,
|
||||
struct cfg80211_internal_bss, pub);
|
||||
r = atomic_dec_return(&bss->hold);
|
||||
WARN_ON(r < 0);
|
||||
|
|
|
|||
|
|
@ -110,8 +110,8 @@ static inline void bss_ref_get(struct cfg80211_registered_device *rdev,
|
|||
pub);
|
||||
bss->refcount++;
|
||||
}
|
||||
if (bss->transmitted_bss) {
|
||||
bss = container_of(bss->transmitted_bss,
|
||||
if (bss->pub.transmitted_bss) {
|
||||
bss = container_of(bss->pub.transmitted_bss,
|
||||
struct cfg80211_internal_bss,
|
||||
pub);
|
||||
bss->refcount++;
|
||||
|
|
@ -133,10 +133,10 @@ static inline void bss_ref_put(struct cfg80211_registered_device *rdev,
|
|||
bss_free(hbss);
|
||||
}
|
||||
|
||||
if (bss->transmitted_bss) {
|
||||
if (bss->pub.transmitted_bss) {
|
||||
struct cfg80211_internal_bss *tbss;
|
||||
|
||||
tbss = container_of(bss->transmitted_bss,
|
||||
tbss = container_of(bss->pub.transmitted_bss,
|
||||
struct cfg80211_internal_bss,
|
||||
pub);
|
||||
tbss->refcount--;
|
||||
|
|
@ -169,7 +169,7 @@ static bool __cfg80211_unlink_bss(struct cfg80211_registered_device *rdev,
|
|||
}
|
||||
|
||||
list_del_init(&bss->list);
|
||||
list_del_init(&bss->nontrans_list);
|
||||
list_del_init(&bss->pub.nontrans_list);
|
||||
rb_erase(&bss->rbn, &rdev->bss_tree);
|
||||
rdev->bss_entries--;
|
||||
WARN_ONCE((rdev->bss_entries == 0) ^ list_empty(&rdev->bss_list),
|
||||
|
|
@ -317,15 +317,15 @@ static bool is_bss(struct cfg80211_bss *a, const u8 *bssid,
|
|||
}
|
||||
|
||||
static int
|
||||
cfg80211_add_nontrans_list(struct cfg80211_internal_bss *trans_bss,
|
||||
struct cfg80211_internal_bss *nontrans_bss)
|
||||
cfg80211_add_nontrans_list(struct cfg80211_bss *trans_bss,
|
||||
struct cfg80211_bss *nontrans_bss)
|
||||
{
|
||||
const u8 *ssid;
|
||||
size_t ssid_len;
|
||||
struct cfg80211_internal_bss *bss = NULL;
|
||||
struct cfg80211_bss *bss = NULL;
|
||||
|
||||
rcu_read_lock();
|
||||
ssid = ieee80211_bss_get_ie(&nontrans_bss->pub, WLAN_EID_SSID);
|
||||
ssid = ieee80211_bss_get_ie(nontrans_bss, WLAN_EID_SSID);
|
||||
if (!ssid) {
|
||||
rcu_read_unlock();
|
||||
return -EINVAL;
|
||||
|
|
@ -336,7 +336,7 @@ cfg80211_add_nontrans_list(struct cfg80211_internal_bss *trans_bss,
|
|||
|
||||
/* check if nontrans_bss is in the list */
|
||||
list_for_each_entry(bss, &trans_bss->nontrans_list, nontrans_list) {
|
||||
if (is_bss(&bss->pub, nontrans_bss->pub.bssid, ssid, ssid_len))
|
||||
if (is_bss(bss, nontrans_bss->bssid, ssid, ssid_len))
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -1166,7 +1166,7 @@ cfg80211_bss_update(struct cfg80211_registered_device *rdev,
|
|||
memcpy(new, tmp, sizeof(*new));
|
||||
new->refcount = 1;
|
||||
INIT_LIST_HEAD(&new->hidden_list);
|
||||
INIT_LIST_HEAD(&new->nontrans_list);
|
||||
INIT_LIST_HEAD(&new->pub.nontrans_list);
|
||||
|
||||
if (rcu_access_pointer(tmp->pub.proberesp_ies)) {
|
||||
hidden = rb_find_bss(rdev, tmp, BSS_CMP_HIDE_ZLEN);
|
||||
|
|
@ -1207,7 +1207,7 @@ cfg80211_bss_update(struct cfg80211_registered_device *rdev,
|
|||
struct cfg80211_internal_bss,
|
||||
pub);
|
||||
|
||||
new->transmitted_bss = trans_bss;
|
||||
new->pub.transmitted_bss = trans_bss;
|
||||
bss_ref_get(rdev, pbss);
|
||||
}
|
||||
|
||||
|
|
@ -1311,7 +1311,7 @@ cfg80211_inform_single_bss_data(struct wiphy *wiphy,
|
|||
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
||||
struct cfg80211_bss_ies *ies;
|
||||
struct ieee80211_channel *channel;
|
||||
struct cfg80211_internal_bss tmp = {}, *res, *trans_internal;
|
||||
struct cfg80211_internal_bss tmp = {}, *res;
|
||||
int bss_type;
|
||||
bool signal_valid;
|
||||
|
||||
|
|
@ -1385,10 +1385,7 @@ cfg80211_inform_single_bss_data(struct wiphy *wiphy,
|
|||
/* this is a nontransmitting bss, we need to add it to
|
||||
* transmitting bss' list if it is not there
|
||||
*/
|
||||
trans_internal = container_of(trans_bss,
|
||||
struct cfg80211_internal_bss,
|
||||
pub);
|
||||
if (cfg80211_add_nontrans_list(trans_internal, res)) {
|
||||
if (cfg80211_add_nontrans_list(trans_bss, &res->pub)) {
|
||||
if (__cfg80211_unlink_bss(rdev, res))
|
||||
rdev->bss_generation++;
|
||||
}
|
||||
|
|
@ -1523,7 +1520,7 @@ cfg80211_parse_mbssid_frame_data(struct wiphy *wiphy,
|
|||
|
||||
static void
|
||||
cfg80211_update_notlisted_nontrans(struct wiphy *wiphy,
|
||||
struct cfg80211_internal_bss *nontrans_bss,
|
||||
struct cfg80211_bss *nontrans_bss,
|
||||
struct ieee80211_mgmt *mgmt, size_t len,
|
||||
gfp_t gfp)
|
||||
{
|
||||
|
|
@ -1548,7 +1545,7 @@ cfg80211_update_notlisted_nontrans(struct wiphy *wiphy,
|
|||
return;
|
||||
new_ie_len -= mbssid[1];
|
||||
rcu_read_lock();
|
||||
nontrans_ssid = ieee80211_bss_get_ie(&nontrans_bss->pub, WLAN_EID_SSID);
|
||||
nontrans_ssid = ieee80211_bss_get_ie(nontrans_bss, WLAN_EID_SSID);
|
||||
if (!nontrans_ssid) {
|
||||
rcu_read_unlock();
|
||||
return;
|
||||
|
|
@ -1589,15 +1586,15 @@ cfg80211_update_notlisted_nontrans(struct wiphy *wiphy,
|
|||
new_ies->from_beacon = ieee80211_is_beacon(mgmt->frame_control);
|
||||
memcpy(new_ies->data, new_ie, new_ie_len);
|
||||
if (ieee80211_is_probe_resp(mgmt->frame_control)) {
|
||||
old = rcu_access_pointer(nontrans_bss->pub.proberesp_ies);
|
||||
rcu_assign_pointer(nontrans_bss->pub.proberesp_ies, new_ies);
|
||||
rcu_assign_pointer(nontrans_bss->pub.ies, new_ies);
|
||||
old = rcu_access_pointer(nontrans_bss->proberesp_ies);
|
||||
rcu_assign_pointer(nontrans_bss->proberesp_ies, new_ies);
|
||||
rcu_assign_pointer(nontrans_bss->ies, new_ies);
|
||||
if (old)
|
||||
kfree_rcu((struct cfg80211_bss_ies *)old, rcu_head);
|
||||
} else {
|
||||
old = rcu_access_pointer(nontrans_bss->pub.beacon_ies);
|
||||
rcu_assign_pointer(nontrans_bss->pub.beacon_ies, new_ies);
|
||||
rcu_assign_pointer(nontrans_bss->pub.ies, new_ies);
|
||||
old = rcu_access_pointer(nontrans_bss->beacon_ies);
|
||||
rcu_assign_pointer(nontrans_bss->beacon_ies, new_ies);
|
||||
rcu_assign_pointer(nontrans_bss->ies, new_ies);
|
||||
if (old)
|
||||
kfree_rcu((struct cfg80211_bss_ies *)old, rcu_head);
|
||||
}
|
||||
|
|
@ -1696,8 +1693,7 @@ cfg80211_inform_bss_frame_data(struct wiphy *wiphy,
|
|||
struct ieee80211_mgmt *mgmt, size_t len,
|
||||
gfp_t gfp)
|
||||
{
|
||||
struct cfg80211_bss *res;
|
||||
struct cfg80211_internal_bss *trans_bss, *tmp_bss;
|
||||
struct cfg80211_bss *res, *tmp_bss;
|
||||
const u8 *ie = mgmt->u.probe_resp.variable;
|
||||
const struct cfg80211_bss_ies *ies1, *ies2;
|
||||
size_t ielen = len - offsetof(struct ieee80211_mgmt,
|
||||
|
|
@ -1715,17 +1711,14 @@ cfg80211_inform_bss_frame_data(struct wiphy *wiphy,
|
|||
* in MBSSID IE
|
||||
*/
|
||||
ies1 = rcu_access_pointer(res->ies);
|
||||
trans_bss = container_of(res, struct cfg80211_internal_bss, pub);
|
||||
if (!trans_bss)
|
||||
return res;
|
||||
|
||||
/* go through nontrans_list, if the timestamp of the BSS is
|
||||
* earlier than the timestamp of the transmitting BSS then
|
||||
* update it
|
||||
*/
|
||||
list_for_each_entry(tmp_bss, &trans_bss->nontrans_list,
|
||||
list_for_each_entry(tmp_bss, &res->nontrans_list,
|
||||
nontrans_list) {
|
||||
ies2 = rcu_access_pointer(tmp_bss->pub.ies);
|
||||
ies2 = rcu_access_pointer(tmp_bss->ies);
|
||||
if (ies2->tsf < ies1->tsf)
|
||||
cfg80211_update_notlisted_nontrans(wiphy, tmp_bss,
|
||||
mgmt, len, gfp);
|
||||
|
|
@ -1770,7 +1763,8 @@ EXPORT_SYMBOL(cfg80211_put_bss);
|
|||
void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
|
||||
{
|
||||
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
|
||||
struct cfg80211_internal_bss *bss, *nontrans_bss, *tmp;
|
||||
struct cfg80211_internal_bss *bss, *tmp1;
|
||||
struct cfg80211_bss *nontrans_bss, *tmp;
|
||||
|
||||
if (WARN_ON(!pub))
|
||||
return;
|
||||
|
|
@ -1778,17 +1772,21 @@ void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
|
|||
bss = container_of(pub, struct cfg80211_internal_bss, pub);
|
||||
|
||||
spin_lock_bh(&rdev->bss_lock);
|
||||
if (!list_empty(&bss->list)) {
|
||||
list_for_each_entry_safe(nontrans_bss, tmp,
|
||||
&bss->nontrans_list,
|
||||
nontrans_list) {
|
||||
if (__cfg80211_unlink_bss(rdev, nontrans_bss))
|
||||
rdev->bss_generation++;
|
||||
}
|
||||
if (list_empty(&bss->list))
|
||||
goto out;
|
||||
|
||||
if (__cfg80211_unlink_bss(rdev, bss))
|
||||
list_for_each_entry_safe(nontrans_bss, tmp,
|
||||
&pub->nontrans_list,
|
||||
nontrans_list) {
|
||||
tmp1 = container_of(nontrans_bss,
|
||||
struct cfg80211_internal_bss, pub);
|
||||
if (__cfg80211_unlink_bss(rdev, tmp1))
|
||||
rdev->bss_generation++;
|
||||
}
|
||||
|
||||
if (__cfg80211_unlink_bss(rdev, bss))
|
||||
rdev->bss_generation++;
|
||||
out:
|
||||
spin_unlock_bh(&rdev->bss_lock);
|
||||
}
|
||||
EXPORT_SYMBOL(cfg80211_unlink_bss);
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче