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-rw-r--r--net/mac80211/util.c306
1 files changed, 188 insertions, 118 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 3bd07a0a782f..8a6917cf63cf 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -6,7 +6,7 @@
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright (C) 2015-2017 Intel Deutschland GmbH
- * Copyright (C) 2018-2022 Intel Corporation
+ * Copyright (C) 2018-2023 Intel Corporation
*
* utilities for mac80211
*/
@@ -918,6 +918,7 @@ ieee80211_parse_extension_element(u32 *crc,
struct ieee80211_elems_parse_params *params)
{
const void *data = elem->data + 1;
+ bool calc_crc = false;
u8 len;
if (!elem->datalen)
@@ -927,12 +928,9 @@ ieee80211_parse_extension_element(u32 *crc,
switch (elem->data[0]) {
case WLAN_EID_EXT_HE_MU_EDCA:
- if (len >= sizeof(*elems->mu_edca_param_set)) {
+ calc_crc = true;
+ if (len >= sizeof(*elems->mu_edca_param_set))
elems->mu_edca_param_set = data;
- if (crc)
- *crc = crc32_be(*crc, (void *)elem,
- elem->datalen + 2);
- }
break;
case WLAN_EID_EXT_HE_CAPABILITY:
if (ieee80211_he_capa_size_ok(data, len)) {
@@ -941,13 +939,10 @@ ieee80211_parse_extension_element(u32 *crc,
}
break;
case WLAN_EID_EXT_HE_OPERATION:
+ calc_crc = true;
if (len >= sizeof(*elems->he_operation) &&
- len >= ieee80211_he_oper_size(data) - 1) {
- if (crc)
- *crc = crc32_be(*crc, (void *)elem,
- elem->datalen + 2);
+ len >= ieee80211_he_oper_size(data) - 1)
elems->he_operation = data;
- }
break;
case WLAN_EID_EXT_UORA:
if (len >= 1)
@@ -981,14 +976,36 @@ ieee80211_parse_extension_element(u32 *crc,
case WLAN_EID_EXT_EHT_OPERATION:
if (ieee80211_eht_oper_size_ok(data, len))
elems->eht_operation = data;
+ calc_crc = true;
break;
case WLAN_EID_EXT_EHT_MULTI_LINK:
+ calc_crc = true;
+
if (ieee80211_mle_size_ok(data, len)) {
- elems->multi_link = (void *)data;
- elems->multi_link_len = len;
+ const struct ieee80211_multi_link_elem *mle =
+ (void *)data;
+
+ switch (le16_get_bits(mle->control,
+ IEEE80211_ML_CONTROL_TYPE)) {
+ case IEEE80211_ML_CONTROL_TYPE_BASIC:
+ elems->ml_basic_elem = (void *)elem;
+ elems->ml_basic = data;
+ elems->ml_basic_len = len;
+ break;
+ case IEEE80211_ML_CONTROL_TYPE_RECONF:
+ elems->ml_reconf_elem = (void *)elem;
+ elems->ml_reconf = data;
+ elems->ml_reconf_len = len;
+ break;
+ default:
+ break;
+ }
}
break;
}
+
+ if (crc && calc_crc)
+ *crc = crc32_be(*crc, (void *)elem, elem->datalen + 2);
}
static u32
@@ -1458,56 +1475,11 @@ static size_t ieee802_11_find_bssid_profile(const u8 *start, size_t len,
return found ? profile_len : 0;
}
-static void ieee80211_defragment_element(struct ieee802_11_elems *elems,
- void **elem_ptr, size_t *len,
- size_t total_len, u8 frag_id)
-{
- u8 *data = *elem_ptr, *pos, *start;
- const struct element *elem;
-
- /*
- * Since 'data' points to the data of the element, not the element
- * itself, allow 254 in case it was an extended element where the
- * extended ID isn't part of the data we see here and thus not part of
- * 'len' either.
- */
- if (!data || (*len != 254 && *len != 255))
- return;
-
- start = elems->scratch_pos;
-
- if (WARN_ON(*len > (elems->scratch + elems->scratch_len -
- elems->scratch_pos)))
- return;
-
- memcpy(elems->scratch_pos, data, *len);
- elems->scratch_pos += *len;
-
- pos = data + *len;
- total_len -= *len;
- for_each_element(elem, pos, total_len) {
- if (elem->id != frag_id)
- break;
-
- if (WARN_ON(elem->datalen >
- (elems->scratch + elems->scratch_len -
- elems->scratch_pos)))
- return;
-
- memcpy(elems->scratch_pos, elem->data, elem->datalen);
- elems->scratch_pos += elem->datalen;
-
- *len += elem->datalen;
- }
-
- *elem_ptr = start;
-}
-
static void ieee80211_mle_get_sta_prof(struct ieee802_11_elems *elems,
u8 link_id)
{
- const struct ieee80211_multi_link_elem *ml = elems->multi_link;
- size_t ml_len = elems->multi_link_len;
+ const struct ieee80211_multi_link_elem *ml = elems->ml_basic;
+ ssize_t ml_len = elems->ml_basic_len;
const struct element *sub;
if (!ml || !ml_len)
@@ -1519,12 +1491,14 @@ static void ieee80211_mle_get_sta_prof(struct ieee802_11_elems *elems,
for_each_mle_subelement(sub, (u8 *)ml, ml_len) {
struct ieee80211_mle_per_sta_profile *prof = (void *)sub->data;
+ ssize_t sta_prof_len;
u16 control;
if (sub->id != IEEE80211_MLE_SUBELEM_PER_STA_PROFILE)
continue;
- if (!ieee80211_mle_sta_prof_size_ok(sub->data, sub->datalen))
+ if (!ieee80211_mle_basic_sta_prof_size_ok(sub->data,
+ sub->datalen))
return;
control = le16_to_cpu(prof->control);
@@ -1536,14 +1510,23 @@ static void ieee80211_mle_get_sta_prof(struct ieee802_11_elems *elems,
if (!(control & IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE))
return;
- elems->prof = prof;
- elems->sta_prof_len = sub->datalen;
-
/* the sub element can be fragmented */
- ieee80211_defragment_element(elems, (void **)&elems->prof,
- &elems->sta_prof_len,
- ml_len - (sub->data - (u8 *)ml),
- IEEE80211_MLE_SUBELEM_FRAGMENT);
+ sta_prof_len =
+ cfg80211_defragment_element(sub,
+ (u8 *)ml, ml_len,
+ elems->scratch_pos,
+ elems->scratch +
+ elems->scratch_len -
+ elems->scratch_pos,
+ IEEE80211_MLE_SUBELEM_FRAGMENT);
+
+ if (sta_prof_len < 0)
+ return;
+
+ elems->prof = (void *)elems->scratch_pos;
+ elems->sta_prof_len = sta_prof_len;
+ elems->scratch_pos += sta_prof_len;
+
return;
}
}
@@ -1557,17 +1540,27 @@ static void ieee80211_mle_parse_link(struct ieee802_11_elems *elems,
.from_ap = params->from_ap,
.link_id = -1,
};
+ ssize_t ml_len = elems->ml_basic_len;
const struct element *non_inherit = NULL;
const u8 *end;
if (params->link_id == -1)
return;
- ieee80211_defragment_element(elems, (void **)&elems->multi_link,
- &elems->multi_link_len,
- elems->total_len - ((u8 *)elems->multi_link -
- elems->ie_start),
- WLAN_EID_FRAGMENT);
+ ml_len = cfg80211_defragment_element(elems->ml_basic_elem,
+ elems->ie_start,
+ elems->total_len,
+ elems->scratch_pos,
+ elems->scratch +
+ elems->scratch_len -
+ elems->scratch_pos,
+ WLAN_EID_FRAGMENT);
+
+ if (ml_len < 0)
+ return;
+
+ elems->ml_basic = (const void *)elems->scratch_pos;
+ elems->ml_basic_len = ml_len;
ieee80211_mle_get_sta_prof(elems, params->link_id);
prof = elems->prof;
@@ -1604,7 +1597,7 @@ ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params)
const struct element *non_inherit = NULL;
u8 *nontransmitted_profile;
int nontransmitted_profile_len = 0;
- size_t scratch_len = params->scratch_len ?: 3 * params->len;
+ size_t scratch_len = 3 * params->len;
elems = kzalloc(sizeof(*elems) + scratch_len, GFP_ATOMIC);
if (!elems)
@@ -1824,7 +1817,7 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
- bool multi_link = sdata->vif.valid_links;
+ bool multi_link = ieee80211_vif_is_mld(&sdata->vif);
struct {
u8 id;
u8 len;
@@ -1918,7 +1911,7 @@ void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
}
}
-static u8 *ieee80211_write_he_6ghz_cap(u8 *pos, __le16 cap, u8 *end)
+u8 *ieee80211_write_he_6ghz_cap(u8 *pos, __le16 cap, u8 *end)
{
if ((end - pos) < 5)
return pos;
@@ -2121,8 +2114,7 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata,
*offset = noffset;
}
- he_cap = ieee80211_get_he_iftype_cap(sband,
- ieee80211_vif_type_p2p(&sdata->vif));
+ he_cap = ieee80211_get_he_iftype_cap_vif(sband, &sdata->vif);
if (he_cap &&
cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band),
IEEE80211_CHAN_NO_HE)) {
@@ -2131,8 +2123,7 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata,
goto out_err;
}
- eht_cap = ieee80211_get_eht_iftype_cap(sband,
- ieee80211_vif_type_p2p(&sdata->vif));
+ eht_cap = ieee80211_get_eht_iftype_cap_vif(sband, &sdata->vif);
if (eht_cap &&
cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band),
@@ -2150,8 +2141,7 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata,
struct ieee80211_supported_band *sband6;
sband6 = local->hw.wiphy->bands[NL80211_BAND_6GHZ];
- he_cap = ieee80211_get_he_iftype_cap(sband6,
- ieee80211_vif_type_p2p(&sdata->vif));
+ he_cap = ieee80211_get_he_iftype_cap_vif(sband6, &sdata->vif);
if (he_cap) {
enum nl80211_iftype iftype =
@@ -2373,6 +2363,7 @@ static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local)
local->resuming = false;
local->suspended = false;
local->in_reconfig = false;
+ local->reconfig_failure = true;
ieee80211_flush_completed_scan(local, true);
@@ -2475,6 +2466,35 @@ static int ieee80211_reconfig_nan(struct ieee80211_sub_if_data *sdata)
return 0;
}
+static void ieee80211_reconfig_ap_links(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ u64 changed)
+{
+ int link_id;
+
+ for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
+ struct ieee80211_link_data *link;
+
+ if (!(sdata->vif.active_links & BIT(link_id)))
+ continue;
+
+ link = sdata_dereference(sdata->link[link_id], sdata);
+ if (!link)
+ continue;
+
+ if (rcu_access_pointer(link->u.ap.beacon))
+ drv_start_ap(local, sdata, link->conf);
+
+ if (!link->conf->enable_beacon)
+ continue;
+
+ changed |= BSS_CHANGED_BEACON |
+ BSS_CHANGED_BEACON_ENABLED;
+
+ ieee80211_link_info_change_notify(sdata, link, changed);
+ }
+}
+
int ieee80211_reconfig(struct ieee80211_local *local)
{
struct ieee80211_hw *hw = &local->hw;
@@ -2624,21 +2644,55 @@ int ieee80211_reconfig(struct ieee80211_local *local)
/* Finally also reconfigure all the BSS information */
list_for_each_entry(sdata, &local->interfaces, list) {
+ /* common change flags for all interface types - link only */
+ u64 changed = BSS_CHANGED_ERP_CTS_PROT |
+ BSS_CHANGED_ERP_PREAMBLE |
+ BSS_CHANGED_ERP_SLOT |
+ BSS_CHANGED_HT |
+ BSS_CHANGED_BASIC_RATES |
+ BSS_CHANGED_BEACON_INT |
+ BSS_CHANGED_BSSID |
+ BSS_CHANGED_CQM |
+ BSS_CHANGED_QOS |
+ BSS_CHANGED_TXPOWER |
+ BSS_CHANGED_MCAST_RATE;
+ struct ieee80211_link_data *link = NULL;
unsigned int link_id;
- u32 changed;
+ u32 active_links = 0;
if (!ieee80211_sdata_running(sdata))
continue;
sdata_lock(sdata);
+ if (ieee80211_vif_is_mld(&sdata->vif)) {
+ struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS] = {
+ [0] = &sdata->vif.bss_conf,
+ };
+
+ if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+ /* start with a single active link */
+ active_links = sdata->vif.active_links;
+ link_id = ffs(active_links) - 1;
+ sdata->vif.active_links = BIT(link_id);
+ }
+
+ drv_change_vif_links(local, sdata, 0,
+ sdata->vif.active_links,
+ old);
+ }
+
for (link_id = 0;
link_id < ARRAY_SIZE(sdata->vif.link_conf);
link_id++) {
- struct ieee80211_link_data *link;
+ if (ieee80211_vif_is_mld(&sdata->vif) &&
+ !(sdata->vif.active_links & BIT(link_id)))
+ continue;
link = sdata_dereference(sdata->link[link_id], sdata);
- if (link)
- ieee80211_assign_chanctx(local, sdata, link);
+ if (!link)
+ continue;
+
+ ieee80211_assign_chanctx(local, sdata, link);
}
switch (sdata->vif.type) {
@@ -2658,42 +2712,42 @@ int ieee80211_reconfig(struct ieee80211_local *local)
&sdata->deflink.tx_conf[i]);
break;
}
- sdata_unlock(sdata);
-
- /* common change flags for all interface types */
- changed = BSS_CHANGED_ERP_CTS_PROT |
- BSS_CHANGED_ERP_PREAMBLE |
- BSS_CHANGED_ERP_SLOT |
- BSS_CHANGED_HT |
- BSS_CHANGED_BASIC_RATES |
- BSS_CHANGED_BEACON_INT |
- BSS_CHANGED_BSSID |
- BSS_CHANGED_CQM |
- BSS_CHANGED_QOS |
- BSS_CHANGED_IDLE |
- BSS_CHANGED_TXPOWER |
- BSS_CHANGED_MCAST_RATE;
if (sdata->vif.bss_conf.mu_mimo_owner)
changed |= BSS_CHANGED_MU_GROUPS;
+ if (!ieee80211_vif_is_mld(&sdata->vif))
+ changed |= BSS_CHANGED_IDLE;
+
switch (sdata->vif.type) {
case NL80211_IFTYPE_STATION:
- changed |= BSS_CHANGED_ASSOC |
- BSS_CHANGED_ARP_FILTER |
- BSS_CHANGED_PS;
+ if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ changed |= BSS_CHANGED_ASSOC |
+ BSS_CHANGED_ARP_FILTER |
+ BSS_CHANGED_PS;
- /* Re-send beacon info report to the driver */
- if (sdata->deflink.u.mgd.have_beacon)
- changed |= BSS_CHANGED_BEACON_INFO;
+ /* Re-send beacon info report to the driver */
+ if (sdata->deflink.u.mgd.have_beacon)
+ changed |= BSS_CHANGED_BEACON_INFO;
- if (sdata->vif.bss_conf.max_idle_period ||
- sdata->vif.bss_conf.protected_keep_alive)
- changed |= BSS_CHANGED_KEEP_ALIVE;
+ if (sdata->vif.bss_conf.max_idle_period ||
+ sdata->vif.bss_conf.protected_keep_alive)
+ changed |= BSS_CHANGED_KEEP_ALIVE;
- sdata_lock(sdata);
- ieee80211_bss_info_change_notify(sdata, changed);
- sdata_unlock(sdata);
+ if (sdata->vif.bss_conf.eht_puncturing)
+ changed |= BSS_CHANGED_EHT_PUNCTURING;
+
+ ieee80211_bss_info_change_notify(sdata,
+ changed);
+ } else if (!WARN_ON(!link)) {
+ ieee80211_link_info_change_notify(sdata, link,
+ changed);
+ changed = BSS_CHANGED_ASSOC |
+ BSS_CHANGED_IDLE |
+ BSS_CHANGED_PS |
+ BSS_CHANGED_ARP_FILTER;
+ ieee80211_vif_cfg_change_notify(sdata, changed);
+ }
break;
case NL80211_IFTYPE_OCB:
changed |= BSS_CHANGED_OCB;
@@ -2703,7 +2757,13 @@ int ieee80211_reconfig(struct ieee80211_local *local)
changed |= BSS_CHANGED_IBSS;
fallthrough;
case NL80211_IFTYPE_AP:
- changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS;
+ changed |= BSS_CHANGED_P2P_PS;
+
+ if (ieee80211_vif_is_mld(&sdata->vif))
+ ieee80211_vif_cfg_change_notify(sdata,
+ BSS_CHANGED_SSID);
+ else
+ changed |= BSS_CHANGED_SSID;
if (sdata->vif.bss_conf.ftm_responder == 1 &&
wiphy_ext_feature_isset(sdata->local->hw.wiphy,
@@ -2713,6 +2773,13 @@ int ieee80211_reconfig(struct ieee80211_local *local)
if (sdata->vif.type == NL80211_IFTYPE_AP) {
changed |= BSS_CHANGED_AP_PROBE_RESP;
+ if (ieee80211_vif_is_mld(&sdata->vif)) {
+ ieee80211_reconfig_ap_links(local,
+ sdata,
+ changed);
+ break;
+ }
+
if (rcu_access_pointer(sdata->deflink.u.ap.beacon))
drv_start_ap(local, sdata,
sdata->deflink.conf);
@@ -2728,6 +2795,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
case NL80211_IFTYPE_NAN:
res = ieee80211_reconfig_nan(sdata);
if (res < 0) {
+ sdata_unlock(sdata);
ieee80211_handle_reconfig_failure(local);
return res;
}
@@ -2745,6 +2813,10 @@ int ieee80211_reconfig(struct ieee80211_local *local)
WARN_ON(1);
break;
}
+ sdata_unlock(sdata);
+
+ if (active_links)
+ ieee80211_set_active_links(&sdata->vif, active_links);
}
ieee80211_recalc_ps(local);
@@ -2860,7 +2932,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
/* Requeue all works */
list_for_each_entry(sdata, &local->interfaces, list)
- ieee80211_queue_work(&local->hw, &sdata->work);
+ wiphy_work_queue(local->hw.wiphy, &sdata->work);
}
ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP,
@@ -3801,10 +3873,8 @@ bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
}
eht_cap = ieee80211_get_eht_iftype_cap(sband, iftype);
- if (!eht_cap) {
- sdata_info(sdata, "Missing iftype sband data/EHT cap");
+ if (!eht_cap)
eht_oper = NULL;
- }
he_6ghz_oper = ieee80211_he_6ghz_oper(he_oper);
generated by cgit v1.2.3-70-g09d2 (git 2.51.1) at 2025-11-04 06:58:34 +0000