From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/net/mac80211/iface.c | 1093 ++++++++++++++++++++++++++++++++-------------------------
1 files changed, 609 insertions(+), 484 deletions(-)
diff --git a/kernel/net/mac80211/iface.c b/kernel/net/mac80211/iface.c
index 358028a..3a15ef8 100644
--- a/kernel/net/mac80211/iface.c
+++ b/kernel/net/mac80211/iface.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Interface handling
*
@@ -8,10 +9,6 @@
* Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright (c) 2016 Intel Deutschland GmbH
* Copyright (C) 2018-2021 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
- * published by the Free Software Foundation.
*/
#include <linux/slab.h>
#include <linux/kernel.h>
@@ -351,432 +348,6 @@
return 0;
}
-void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
- const int offset)
-{
- struct ieee80211_local *local = sdata->local;
- u32 flags = sdata->u.mntr.flags;
-
-#define ADJUST(_f, _s) do { \
- if (flags & MONITOR_FLAG_##_f) \
- local->fif_##_s += offset; \
- } while (0)
-
- ADJUST(FCSFAIL, fcsfail);
- ADJUST(PLCPFAIL, plcpfail);
- ADJUST(CONTROL, control);
- ADJUST(CONTROL, pspoll);
- ADJUST(OTHER_BSS, other_bss);
-
-#undef ADJUST
-}
-
-static void ieee80211_set_default_queues(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_local *local = sdata->local;
- int i;
-
- for (i = 0; i < IEEE80211_NUM_ACS; i++) {
- if (ieee80211_hw_check(&local->hw, QUEUE_CONTROL))
- sdata->vif.hw_queue[i] = IEEE80211_INVAL_HW_QUEUE;
- else if (local->hw.queues >= IEEE80211_NUM_ACS)
- sdata->vif.hw_queue[i] = i;
- else
- sdata->vif.hw_queue[i] = 0;
- }
- sdata->vif.cab_queue = IEEE80211_INVAL_HW_QUEUE;
-}
-
-int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
-{
- struct ieee80211_sub_if_data *sdata;
- int ret;
-
- if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
- return 0;
-
- ASSERT_RTNL();
-
- if (local->monitor_sdata)
- return 0;
-
- sdata = kzalloc(sizeof(*sdata) + local->hw.vif_data_size, GFP_KERNEL);
- if (!sdata)
- return -ENOMEM;
-
- /* set up data */
- sdata->local = local;
- sdata->vif.type = NL80211_IFTYPE_MONITOR;
- snprintf(sdata->name, IFNAMSIZ, "%s-monitor",
- wiphy_name(local->hw.wiphy));
- sdata->wdev.iftype = NL80211_IFTYPE_MONITOR;
-
- sdata->encrypt_headroom = IEEE80211_ENCRYPT_HEADROOM;
-
- ieee80211_set_default_queues(sdata);
-
- ret = drv_add_interface(local, sdata);
- if (WARN_ON(ret)) {
- /* ok .. stupid driver, it asked for this! */
- kfree(sdata);
- return ret;
- }
-
- ret = ieee80211_check_queues(sdata, NL80211_IFTYPE_MONITOR);
- if (ret) {
- kfree(sdata);
- return ret;
- }
-
- mutex_lock(&local->iflist_mtx);
- rcu_assign_pointer(local->monitor_sdata, sdata);
- mutex_unlock(&local->iflist_mtx);
-
- mutex_lock(&local->mtx);
- ret = ieee80211_vif_use_channel(sdata, &local->monitor_chandef,
- IEEE80211_CHANCTX_EXCLUSIVE);
- mutex_unlock(&local->mtx);
- if (ret) {
- mutex_lock(&local->iflist_mtx);
- RCU_INIT_POINTER(local->monitor_sdata, NULL);
- mutex_unlock(&local->iflist_mtx);
- synchronize_net();
- drv_remove_interface(local, sdata);
- kfree(sdata);
- return ret;
- }
-
- skb_queue_head_init(&sdata->skb_queue);
- INIT_WORK(&sdata->work, ieee80211_iface_work);
-
- return 0;
-}
-
-void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
-{
- struct ieee80211_sub_if_data *sdata;
-
- if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
- return;
-
- ASSERT_RTNL();
-
- mutex_lock(&local->iflist_mtx);
-
- sdata = rcu_dereference_protected(local->monitor_sdata,
- lockdep_is_held(&local->iflist_mtx));
- if (!sdata) {
- mutex_unlock(&local->iflist_mtx);
- return;
- }
-
- RCU_INIT_POINTER(local->monitor_sdata, NULL);
- mutex_unlock(&local->iflist_mtx);
-
- synchronize_net();
-
- mutex_lock(&local->mtx);
- ieee80211_vif_release_channel(sdata);
- mutex_unlock(&local->mtx);
-
- drv_remove_interface(local, sdata);
-
- kfree(sdata);
-}
-
-/*
- * NOTE: Be very careful when changing this function, it must NOT return
- * an error on interface type changes that have been pre-checked, so most
- * checks should be in ieee80211_check_concurrent_iface.
- */
-int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
- struct net_device *dev = wdev->netdev;
- struct ieee80211_local *local = sdata->local;
- struct sta_info *sta;
- u32 changed = 0;
- int res;
- u32 hw_reconf_flags = 0;
-
- switch (sdata->vif.type) {
- case NL80211_IFTYPE_WDS:
- if (!is_valid_ether_addr(sdata->u.wds.remote_addr))
- return -ENOLINK;
- break;
- case NL80211_IFTYPE_AP_VLAN: {
- struct ieee80211_sub_if_data *master;
-
- if (!sdata->bss)
- return -ENOLINK;
-
- mutex_lock(&local->mtx);
- list_add(&sdata->u.vlan.list, &sdata->bss->vlans);
- mutex_unlock(&local->mtx);
-
- master = container_of(sdata->bss,
- struct ieee80211_sub_if_data, u.ap);
- sdata->control_port_protocol =
- master->control_port_protocol;
- sdata->control_port_no_encrypt =
- master->control_port_no_encrypt;
- sdata->control_port_over_nl80211 =
- master->control_port_over_nl80211;
- sdata->vif.cab_queue = master->vif.cab_queue;
- memcpy(sdata->vif.hw_queue, master->vif.hw_queue,
- sizeof(sdata->vif.hw_queue));
- sdata->vif.bss_conf.chandef = master->vif.bss_conf.chandef;
-
- mutex_lock(&local->key_mtx);
- sdata->crypto_tx_tailroom_needed_cnt +=
- master->crypto_tx_tailroom_needed_cnt;
- mutex_unlock(&local->key_mtx);
-
- break;
- }
- case NL80211_IFTYPE_AP:
- sdata->bss = &sdata->u.ap;
- break;
- case NL80211_IFTYPE_MESH_POINT:
- case NL80211_IFTYPE_STATION:
- case NL80211_IFTYPE_MONITOR:
- case NL80211_IFTYPE_ADHOC:
- case NL80211_IFTYPE_P2P_DEVICE:
- case NL80211_IFTYPE_OCB:
- case NL80211_IFTYPE_NAN:
- /* no special treatment */
- break;
- case NL80211_IFTYPE_UNSPECIFIED:
- case NUM_NL80211_IFTYPES:
- case NL80211_IFTYPE_P2P_CLIENT:
- case NL80211_IFTYPE_P2P_GO:
- /* cannot happen */
- WARN_ON(1);
- break;
- }
-
- if (local->open_count == 0) {
- res = drv_start(local);
- if (res)
- goto err_del_bss;
- /* we're brought up, everything changes */
- hw_reconf_flags = ~0;
- ieee80211_led_radio(local, true);
- ieee80211_mod_tpt_led_trig(local,
- IEEE80211_TPT_LEDTRIG_FL_RADIO, 0);
- }
-
- /*
- * Copy the hopefully now-present MAC address to
- * this interface, if it has the special null one.
- */
- if (dev && is_zero_ether_addr(dev->dev_addr)) {
- memcpy(dev->dev_addr,
- local->hw.wiphy->perm_addr,
- ETH_ALEN);
- memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN);
-
- if (!is_valid_ether_addr(dev->dev_addr)) {
- res = -EADDRNOTAVAIL;
- goto err_stop;
- }
- }
-
- switch (sdata->vif.type) {
- case NL80211_IFTYPE_AP_VLAN:
- /* no need to tell driver, but set carrier and chanctx */
- if (rtnl_dereference(sdata->bss->beacon)) {
- ieee80211_vif_vlan_copy_chanctx(sdata);
- netif_carrier_on(dev);
- } else {
- netif_carrier_off(dev);
- }
- break;
- case NL80211_IFTYPE_MONITOR:
- if (sdata->u.mntr.flags & MONITOR_FLAG_COOK_FRAMES) {
- local->cooked_mntrs++;
- break;
- }
-
- if (sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) {
- res = drv_add_interface(local, sdata);
- if (res)
- goto err_stop;
- } else if (local->monitors == 0 && local->open_count == 0) {
- res = ieee80211_add_virtual_monitor(local);
- if (res)
- goto err_stop;
- }
-
- /* must be before the call to ieee80211_configure_filter */
- local->monitors++;
- if (local->monitors == 1) {
- local->hw.conf.flags |= IEEE80211_CONF_MONITOR;
- hw_reconf_flags |= IEEE80211_CONF_CHANGE_MONITOR;
- }
-
- ieee80211_adjust_monitor_flags(sdata, 1);
- ieee80211_configure_filter(local);
- mutex_lock(&local->mtx);
- ieee80211_recalc_idle(local);
- mutex_unlock(&local->mtx);
-
- netif_carrier_on(dev);
- break;
- default:
- if (coming_up) {
- ieee80211_del_virtual_monitor(local);
-
- res = drv_add_interface(local, sdata);
- if (res)
- goto err_stop;
- res = ieee80211_check_queues(sdata,
- ieee80211_vif_type_p2p(&sdata->vif));
- if (res)
- goto err_del_interface;
- }
-
- if (sdata->vif.type == NL80211_IFTYPE_AP) {
- local->fif_pspoll++;
- local->fif_probe_req++;
-
- ieee80211_configure_filter(local);
- } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
- local->fif_probe_req++;
- }
-
- if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
- sdata->vif.type != NL80211_IFTYPE_NAN)
- changed |= ieee80211_reset_erp_info(sdata);
- ieee80211_bss_info_change_notify(sdata, changed);
-
- switch (sdata->vif.type) {
- case NL80211_IFTYPE_STATION:
- case NL80211_IFTYPE_ADHOC:
- case NL80211_IFTYPE_AP:
- case NL80211_IFTYPE_MESH_POINT:
- case NL80211_IFTYPE_OCB:
- netif_carrier_off(dev);
- break;
- case NL80211_IFTYPE_WDS:
- case NL80211_IFTYPE_P2P_DEVICE:
- case NL80211_IFTYPE_NAN:
- break;
- default:
- /* not reached */
- WARN_ON(1);
- }
-
- /*
- * Set default queue parameters so drivers don't
- * need to initialise the hardware if the hardware
- * doesn't start up with sane defaults.
- * Enable QoS for anything but station interfaces.
- */
- ieee80211_set_wmm_default(sdata, true,
- sdata->vif.type != NL80211_IFTYPE_STATION);
- }
-
- set_bit(SDATA_STATE_RUNNING, &sdata->state);
-
- switch (sdata->vif.type) {
- case NL80211_IFTYPE_WDS:
- /* Create STA entry for the WDS peer */
- sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
- GFP_KERNEL);
- if (!sta) {
- res = -ENOMEM;
- goto err_del_interface;
- }
-
- sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
- sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
- sta_info_pre_move_state(sta, IEEE80211_STA_AUTHORIZED);
-
- res = sta_info_insert(sta);
- if (res) {
- /* STA has been freed */
- goto err_del_interface;
- }
-
- rate_control_rate_init(sta);
- netif_carrier_on(dev);
- break;
- case NL80211_IFTYPE_P2P_DEVICE:
- rcu_assign_pointer(local->p2p_sdata, sdata);
- break;
- case NL80211_IFTYPE_MONITOR:
- if (sdata->u.mntr.flags & MONITOR_FLAG_COOK_FRAMES)
- break;
- list_add_tail_rcu(&sdata->u.mntr.list, &local->mon_list);
- break;
- default:
- break;
- }
-
- /*
- * set_multicast_list will be invoked by the networking core
- * which will check whether any increments here were done in
- * error and sync them down to the hardware as filter flags.
- */
- if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
- atomic_inc(&local->iff_allmultis);
-
- if (coming_up)
- local->open_count++;
-
- if (hw_reconf_flags)
- ieee80211_hw_config(local, hw_reconf_flags);
-
- ieee80211_recalc_ps(local);
-
- if (sdata->vif.type == NL80211_IFTYPE_MONITOR ||
- sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
- local->ops->wake_tx_queue) {
- /* XXX: for AP_VLAN, actually track AP queues */
- if (dev)
- netif_tx_start_all_queues(dev);
- } else if (dev) {
- unsigned long flags;
- int n_acs = IEEE80211_NUM_ACS;
- int ac;
-
- if (local->hw.queues < IEEE80211_NUM_ACS)
- n_acs = 1;
-
- spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
- if (sdata->vif.cab_queue == IEEE80211_INVAL_HW_QUEUE ||
- (local->queue_stop_reasons[sdata->vif.cab_queue] == 0 &&
- skb_queue_empty(&local->pending[sdata->vif.cab_queue]))) {
- for (ac = 0; ac < n_acs; ac++) {
- int ac_queue = sdata->vif.hw_queue[ac];
-
- if (local->queue_stop_reasons[ac_queue] == 0 &&
- skb_queue_empty(&local->pending[ac_queue]))
- netif_start_subqueue(dev, ac);
- }
- }
- spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
- }
-
- return 0;
- err_del_interface:
- drv_remove_interface(local, sdata);
- err_stop:
- if (!local->open_count)
- drv_stop(local);
- err_del_bss:
- sdata->bss = NULL;
- if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
- mutex_lock(&local->mtx);
- list_del(&sdata->u.vlan.list);
- mutex_unlock(&local->mtx);
- }
- /* might already be clear but that doesn't matter */
- clear_bit(SDATA_STATE_RUNNING, &sdata->state);
- return res;
-}
-
static int ieee80211_open(struct net_device *dev)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
@@ -826,9 +397,6 @@
break;
case NL80211_IFTYPE_ADHOC:
ieee80211_ibss_stop(sdata);
- break;
- case NL80211_IFTYPE_AP:
- cancel_work_sync(&sdata->u.ap.request_smps_work);
break;
case NL80211_IFTYPE_MONITOR:
if (sdata->u.mntr.flags & MONITOR_FLAG_COOK_FRAMES)
@@ -977,7 +545,7 @@
case NL80211_IFTYPE_P2P_DEVICE:
/* relies on synchronize_rcu() below */
RCU_INIT_POINTER(local->p2p_sdata, NULL);
- /* fall through */
+ fallthrough;
default:
cancel_work_sync(&sdata->work);
/*
@@ -1047,7 +615,7 @@
if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE))
break;
- /* fall through */
+ fallthrough;
default:
if (going_down)
drv_remove_interface(local, sdata);
@@ -1129,8 +697,7 @@
static u16 ieee80211_netdev_select_queue(struct net_device *dev,
struct sk_buff *skb,
- struct net_device *sb_dev,
- select_queue_fallback_t fallback)
+ struct net_device *sb_dev)
{
return ieee80211_select_queue(IEEE80211_DEV_TO_SUB_IF(dev), skb);
}
@@ -1138,28 +705,7 @@
static void
ieee80211_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
{
- int i;
-
- for_each_possible_cpu(i) {
- const struct pcpu_sw_netstats *tstats;
- u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
- unsigned int start;
-
- tstats = per_cpu_ptr(dev->tstats, i);
-
- do {
- start = u64_stats_fetch_begin_irq(&tstats->syncp);
- rx_packets = tstats->rx_packets;
- tx_packets = tstats->tx_packets;
- rx_bytes = tstats->rx_bytes;
- tx_bytes = tstats->tx_bytes;
- } while (u64_stats_fetch_retry_irq(&tstats->syncp, start));
-
- stats->rx_packets += rx_packets;
- stats->tx_packets += tx_packets;
- stats->rx_bytes += rx_bytes;
- stats->tx_bytes += tx_bytes;
- }
+ dev_fetch_sw_netstats(stats, dev->tstats);
}
static const struct net_device_ops ieee80211_dataif_ops = {
@@ -1175,22 +721,28 @@
static u16 ieee80211_monitor_select_queue(struct net_device *dev,
struct sk_buff *skb,
- struct net_device *sb_dev,
- select_queue_fallback_t fallback)
+ struct net_device *sb_dev)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr;
- struct ieee80211_radiotap_header *rtap = (void *)skb->data;
+ int len_rthdr;
if (local->hw.queues < IEEE80211_NUM_ACS)
return 0;
- if (skb->len < 4 ||
- skb->len < le16_to_cpu(rtap->it_len) + 2 /* frame control */)
+ /* reset flags and info before parsing radiotap header */
+ memset(info, 0, sizeof(*info));
+
+ if (!ieee80211_parse_tx_radiotap(skb, dev))
return 0; /* doesn't matter, frame will be dropped */
- hdr = (void *)((u8 *)skb->data + le16_to_cpu(rtap->it_len));
+ len_rthdr = ieee80211_get_radiotap_len(skb->data);
+ hdr = (struct ieee80211_hdr *)(skb->data + len_rthdr);
+ if (skb->len < len_rthdr + 2 ||
+ skb->len < len_rthdr + ieee80211_hdrlen(hdr->frame_control))
+ return 0; /* doesn't matter, frame will be dropped */
return ieee80211_select_queue_80211(sdata, skb, hdr);
}
@@ -1205,6 +757,561 @@
.ndo_select_queue = ieee80211_monitor_select_queue,
.ndo_get_stats64 = ieee80211_get_stats64,
};
+
+static const struct net_device_ops ieee80211_dataif_8023_ops = {
+ .ndo_open = ieee80211_open,
+ .ndo_stop = ieee80211_stop,
+ .ndo_uninit = ieee80211_uninit,
+ .ndo_start_xmit = ieee80211_subif_start_xmit_8023,
+ .ndo_set_rx_mode = ieee80211_set_multicast_list,
+ .ndo_set_mac_address = ieee80211_change_mac,
+ .ndo_select_queue = ieee80211_netdev_select_queue,
+ .ndo_get_stats64 = ieee80211_get_stats64,
+};
+
+static bool ieee80211_iftype_supports_encap_offload(enum nl80211_iftype iftype)
+{
+ switch (iftype) {
+ /* P2P GO and client are mapped to AP/STATION types */
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_STATION:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool ieee80211_set_sdata_offload_flags(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_local *local = sdata->local;
+ u32 flags;
+
+ flags = sdata->vif.offload_flags;
+
+ if (ieee80211_hw_check(&local->hw, SUPPORTS_TX_ENCAP_OFFLOAD) &&
+ ieee80211_iftype_supports_encap_offload(sdata->vif.type)) {
+ flags |= IEEE80211_OFFLOAD_ENCAP_ENABLED;
+
+ if (!ieee80211_hw_check(&local->hw, SUPPORTS_TX_FRAG) &&
+ local->hw.wiphy->frag_threshold != (u32)-1)
+ flags &= ~IEEE80211_OFFLOAD_ENCAP_ENABLED;
+
+ if (local->monitors)
+ flags &= ~IEEE80211_OFFLOAD_ENCAP_ENABLED;
+ } else {
+ flags &= ~IEEE80211_OFFLOAD_ENCAP_ENABLED;
+ }
+
+ if (sdata->vif.offload_flags == flags)
+ return false;
+
+ sdata->vif.offload_flags = flags;
+ return true;
+}
+
+static void ieee80211_set_vif_encap_ops(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_sub_if_data *bss = sdata;
+ bool enabled;
+
+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
+ if (!sdata->bss)
+ return;
+
+ bss = container_of(sdata->bss, struct ieee80211_sub_if_data, u.ap);
+ }
+
+ if (!ieee80211_hw_check(&local->hw, SUPPORTS_TX_ENCAP_OFFLOAD) ||
+ !ieee80211_iftype_supports_encap_offload(bss->vif.type))
+ return;
+
+ enabled = bss->vif.offload_flags & IEEE80211_OFFLOAD_ENCAP_ENABLED;
+ if (sdata->wdev.use_4addr &&
+ !(bss->vif.offload_flags & IEEE80211_OFFLOAD_ENCAP_4ADDR))
+ enabled = false;
+
+ sdata->dev->netdev_ops = enabled ? &ieee80211_dataif_8023_ops :
+ &ieee80211_dataif_ops;
+}
+
+static void ieee80211_recalc_sdata_offload(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_sub_if_data *vsdata;
+
+ if (ieee80211_set_sdata_offload_flags(sdata)) {
+ drv_update_vif_offload(local, sdata);
+ ieee80211_set_vif_encap_ops(sdata);
+ }
+
+ list_for_each_entry(vsdata, &local->interfaces, list) {
+ if (vsdata->vif.type != NL80211_IFTYPE_AP_VLAN ||
+ vsdata->bss != &sdata->u.ap)
+ continue;
+
+ ieee80211_set_vif_encap_ops(vsdata);
+ }
+}
+
+void ieee80211_recalc_offload(struct ieee80211_local *local)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ if (!ieee80211_hw_check(&local->hw, SUPPORTS_TX_ENCAP_OFFLOAD))
+ return;
+
+ mutex_lock(&local->iflist_mtx);
+
+ list_for_each_entry(sdata, &local->interfaces, list) {
+ if (!ieee80211_sdata_running(sdata))
+ continue;
+
+ ieee80211_recalc_sdata_offload(sdata);
+ }
+
+ mutex_unlock(&local->iflist_mtx);
+}
+
+void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
+ const int offset)
+{
+ struct ieee80211_local *local = sdata->local;
+ u32 flags = sdata->u.mntr.flags;
+
+#define ADJUST(_f, _s) do { \
+ if (flags & MONITOR_FLAG_##_f) \
+ local->fif_##_s += offset; \
+ } while (0)
+
+ ADJUST(FCSFAIL, fcsfail);
+ ADJUST(PLCPFAIL, plcpfail);
+ ADJUST(CONTROL, control);
+ ADJUST(CONTROL, pspoll);
+ ADJUST(OTHER_BSS, other_bss);
+
+#undef ADJUST
+}
+
+static void ieee80211_set_default_queues(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_local *local = sdata->local;
+ int i;
+
+ for (i = 0; i < IEEE80211_NUM_ACS; i++) {
+ if (ieee80211_hw_check(&local->hw, QUEUE_CONTROL))
+ sdata->vif.hw_queue[i] = IEEE80211_INVAL_HW_QUEUE;
+ else if (local->hw.queues >= IEEE80211_NUM_ACS)
+ sdata->vif.hw_queue[i] = i;
+ else
+ sdata->vif.hw_queue[i] = 0;
+ }
+ sdata->vif.cab_queue = IEEE80211_INVAL_HW_QUEUE;
+}
+
+int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
+{
+ struct ieee80211_sub_if_data *sdata;
+ int ret;
+
+ if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
+ return 0;
+
+ ASSERT_RTNL();
+
+ if (local->monitor_sdata)
+ return 0;
+
+ sdata = kzalloc(sizeof(*sdata) + local->hw.vif_data_size, GFP_KERNEL);
+ if (!sdata)
+ return -ENOMEM;
+
+ /* set up data */
+ sdata->local = local;
+ sdata->vif.type = NL80211_IFTYPE_MONITOR;
+ snprintf(sdata->name, IFNAMSIZ, "%s-monitor",
+ wiphy_name(local->hw.wiphy));
+ sdata->wdev.iftype = NL80211_IFTYPE_MONITOR;
+
+ sdata->encrypt_headroom = IEEE80211_ENCRYPT_HEADROOM;
+
+ ieee80211_set_default_queues(sdata);
+
+ ret = drv_add_interface(local, sdata);
+ if (WARN_ON(ret)) {
+ /* ok .. stupid driver, it asked for this! */
+ kfree(sdata);
+ return ret;
+ }
+
+ set_bit(SDATA_STATE_RUNNING, &sdata->state);
+
+ ret = ieee80211_check_queues(sdata, NL80211_IFTYPE_MONITOR);
+ if (ret) {
+ kfree(sdata);
+ return ret;
+ }
+
+ mutex_lock(&local->iflist_mtx);
+ rcu_assign_pointer(local->monitor_sdata, sdata);
+ mutex_unlock(&local->iflist_mtx);
+
+ mutex_lock(&local->mtx);
+ ret = ieee80211_vif_use_channel(sdata, &local->monitor_chandef,
+ IEEE80211_CHANCTX_EXCLUSIVE);
+ mutex_unlock(&local->mtx);
+ if (ret) {
+ mutex_lock(&local->iflist_mtx);
+ RCU_INIT_POINTER(local->monitor_sdata, NULL);
+ mutex_unlock(&local->iflist_mtx);
+ synchronize_net();
+ drv_remove_interface(local, sdata);
+ kfree(sdata);
+ return ret;
+ }
+
+ skb_queue_head_init(&sdata->skb_queue);
+ INIT_WORK(&sdata->work, ieee80211_iface_work);
+
+ return 0;
+}
+
+void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
+ return;
+
+ ASSERT_RTNL();
+
+ mutex_lock(&local->iflist_mtx);
+
+ sdata = rcu_dereference_protected(local->monitor_sdata,
+ lockdep_is_held(&local->iflist_mtx));
+ if (!sdata) {
+ mutex_unlock(&local->iflist_mtx);
+ return;
+ }
+
+ RCU_INIT_POINTER(local->monitor_sdata, NULL);
+ mutex_unlock(&local->iflist_mtx);
+
+ synchronize_net();
+
+ mutex_lock(&local->mtx);
+ ieee80211_vif_release_channel(sdata);
+ mutex_unlock(&local->mtx);
+
+ drv_remove_interface(local, sdata);
+
+ kfree(sdata);
+}
+
+/*
+ * NOTE: Be very careful when changing this function, it must NOT return
+ * an error on interface type changes that have been pre-checked, so most
+ * checks should be in ieee80211_check_concurrent_iface.
+ */
+int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+ struct net_device *dev = wdev->netdev;
+ struct ieee80211_local *local = sdata->local;
+ struct sta_info *sta;
+ u32 changed = 0;
+ int res;
+ u32 hw_reconf_flags = 0;
+
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_WDS:
+ if (!is_valid_ether_addr(sdata->u.wds.remote_addr))
+ return -ENOLINK;
+ break;
+ case NL80211_IFTYPE_AP_VLAN: {
+ struct ieee80211_sub_if_data *master;
+
+ if (!sdata->bss)
+ return -ENOLINK;
+
+ mutex_lock(&local->mtx);
+ list_add(&sdata->u.vlan.list, &sdata->bss->vlans);
+ mutex_unlock(&local->mtx);
+
+ master = container_of(sdata->bss,
+ struct ieee80211_sub_if_data, u.ap);
+ sdata->control_port_protocol =
+ master->control_port_protocol;
+ sdata->control_port_no_encrypt =
+ master->control_port_no_encrypt;
+ sdata->control_port_over_nl80211 =
+ master->control_port_over_nl80211;
+ sdata->control_port_no_preauth =
+ master->control_port_no_preauth;
+ sdata->vif.cab_queue = master->vif.cab_queue;
+ memcpy(sdata->vif.hw_queue, master->vif.hw_queue,
+ sizeof(sdata->vif.hw_queue));
+ sdata->vif.bss_conf.chandef = master->vif.bss_conf.chandef;
+
+ mutex_lock(&local->key_mtx);
+ sdata->crypto_tx_tailroom_needed_cnt +=
+ master->crypto_tx_tailroom_needed_cnt;
+ mutex_unlock(&local->key_mtx);
+
+ break;
+ }
+ case NL80211_IFTYPE_AP:
+ sdata->bss = &sdata->u.ap;
+ break;
+ case NL80211_IFTYPE_MESH_POINT:
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_MONITOR:
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_P2P_DEVICE:
+ case NL80211_IFTYPE_OCB:
+ case NL80211_IFTYPE_NAN:
+ /* no special treatment */
+ break;
+ case NL80211_IFTYPE_UNSPECIFIED:
+ case NUM_NL80211_IFTYPES:
+ case NL80211_IFTYPE_P2P_CLIENT:
+ case NL80211_IFTYPE_P2P_GO:
+ /* cannot happen */
+ WARN_ON(1);
+ break;
+ }
+
+ if (local->open_count == 0) {
+ res = drv_start(local);
+ if (res)
+ goto err_del_bss;
+ /* we're brought up, everything changes */
+ hw_reconf_flags = ~0;
+ ieee80211_led_radio(local, true);
+ ieee80211_mod_tpt_led_trig(local,
+ IEEE80211_TPT_LEDTRIG_FL_RADIO, 0);
+ }
+
+ /*
+ * Copy the hopefully now-present MAC address to
+ * this interface, if it has the special null one.
+ */
+ if (dev && is_zero_ether_addr(dev->dev_addr)) {
+ memcpy(dev->dev_addr,
+ local->hw.wiphy->perm_addr,
+ ETH_ALEN);
+ memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN);
+
+ if (!is_valid_ether_addr(dev->dev_addr)) {
+ res = -EADDRNOTAVAIL;
+ goto err_stop;
+ }
+ }
+
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_AP_VLAN:
+ /* no need to tell driver, but set carrier and chanctx */
+ if (rtnl_dereference(sdata->bss->beacon)) {
+ ieee80211_vif_vlan_copy_chanctx(sdata);
+ netif_carrier_on(dev);
+ ieee80211_set_vif_encap_ops(sdata);
+ } else {
+ netif_carrier_off(dev);
+ }
+ break;
+ case NL80211_IFTYPE_MONITOR:
+ if (sdata->u.mntr.flags & MONITOR_FLAG_COOK_FRAMES) {
+ local->cooked_mntrs++;
+ break;
+ }
+
+ if (sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) {
+ res = drv_add_interface(local, sdata);
+ if (res)
+ goto err_stop;
+ } else if (local->monitors == 0 && local->open_count == 0) {
+ res = ieee80211_add_virtual_monitor(local);
+ if (res)
+ goto err_stop;
+ }
+
+ /* must be before the call to ieee80211_configure_filter */
+ local->monitors++;
+ if (local->monitors == 1) {
+ local->hw.conf.flags |= IEEE80211_CONF_MONITOR;
+ hw_reconf_flags |= IEEE80211_CONF_CHANGE_MONITOR;
+ }
+
+ ieee80211_adjust_monitor_flags(sdata, 1);
+ ieee80211_configure_filter(local);
+ ieee80211_recalc_offload(local);
+ mutex_lock(&local->mtx);
+ ieee80211_recalc_idle(local);
+ mutex_unlock(&local->mtx);
+
+ netif_carrier_on(dev);
+ break;
+ default:
+ if (coming_up) {
+ ieee80211_del_virtual_monitor(local);
+ ieee80211_set_sdata_offload_flags(sdata);
+
+ res = drv_add_interface(local, sdata);
+ if (res)
+ goto err_stop;
+
+ ieee80211_set_vif_encap_ops(sdata);
+ res = ieee80211_check_queues(sdata,
+ ieee80211_vif_type_p2p(&sdata->vif));
+ if (res)
+ goto err_del_interface;
+ }
+
+ if (sdata->vif.type == NL80211_IFTYPE_AP) {
+ local->fif_pspoll++;
+ local->fif_probe_req++;
+
+ ieee80211_configure_filter(local);
+ } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+ local->fif_probe_req++;
+ }
+
+ if (sdata->vif.probe_req_reg)
+ drv_config_iface_filter(local, sdata,
+ FIF_PROBE_REQ,
+ FIF_PROBE_REQ);
+
+ if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
+ sdata->vif.type != NL80211_IFTYPE_NAN)
+ changed |= ieee80211_reset_erp_info(sdata);
+ ieee80211_bss_info_change_notify(sdata, changed);
+
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_MESH_POINT:
+ case NL80211_IFTYPE_OCB:
+ netif_carrier_off(dev);
+ break;
+ case NL80211_IFTYPE_WDS:
+ case NL80211_IFTYPE_P2P_DEVICE:
+ case NL80211_IFTYPE_NAN:
+ break;
+ default:
+ /* not reached */
+ WARN_ON(1);
+ }
+
+ /*
+ * Set default queue parameters so drivers don't
+ * need to initialise the hardware if the hardware
+ * doesn't start up with sane defaults.
+ * Enable QoS for anything but station interfaces.
+ */
+ ieee80211_set_wmm_default(sdata, true,
+ sdata->vif.type != NL80211_IFTYPE_STATION);
+ }
+
+ set_bit(SDATA_STATE_RUNNING, &sdata->state);
+
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_WDS:
+ /* Create STA entry for the WDS peer */
+ sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
+ GFP_KERNEL);
+ if (!sta) {
+ res = -ENOMEM;
+ goto err_del_interface;
+ }
+
+ sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
+ sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
+ sta_info_pre_move_state(sta, IEEE80211_STA_AUTHORIZED);
+
+ res = sta_info_insert(sta);
+ if (res) {
+ /* STA has been freed */
+ goto err_del_interface;
+ }
+
+ rate_control_rate_init(sta);
+ netif_carrier_on(dev);
+ break;
+ case NL80211_IFTYPE_P2P_DEVICE:
+ rcu_assign_pointer(local->p2p_sdata, sdata);
+ break;
+ case NL80211_IFTYPE_MONITOR:
+ if (sdata->u.mntr.flags & MONITOR_FLAG_COOK_FRAMES)
+ break;
+ list_add_tail_rcu(&sdata->u.mntr.list, &local->mon_list);
+ break;
+ default:
+ break;
+ }
+
+ /*
+ * set_multicast_list will be invoked by the networking core
+ * which will check whether any increments here were done in
+ * error and sync them down to the hardware as filter flags.
+ */
+ if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
+ atomic_inc(&local->iff_allmultis);
+
+ if (coming_up)
+ local->open_count++;
+
+ if (hw_reconf_flags)
+ ieee80211_hw_config(local, hw_reconf_flags);
+
+ ieee80211_recalc_ps(local);
+
+ if (sdata->vif.type == NL80211_IFTYPE_MONITOR ||
+ sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
+ local->ops->wake_tx_queue) {
+ /* XXX: for AP_VLAN, actually track AP queues */
+ if (dev)
+ netif_tx_start_all_queues(dev);
+ } else if (dev) {
+ unsigned long flags;
+ int n_acs = IEEE80211_NUM_ACS;
+ int ac;
+
+ if (local->hw.queues < IEEE80211_NUM_ACS)
+ n_acs = 1;
+
+ spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+ if (sdata->vif.cab_queue == IEEE80211_INVAL_HW_QUEUE ||
+ (local->queue_stop_reasons[sdata->vif.cab_queue] == 0 &&
+ skb_queue_empty(&local->pending[sdata->vif.cab_queue]))) {
+ for (ac = 0; ac < n_acs; ac++) {
+ int ac_queue = sdata->vif.hw_queue[ac];
+
+ if (local->queue_stop_reasons[ac_queue] == 0 &&
+ skb_queue_empty(&local->pending[ac_queue]))
+ netif_start_subqueue(dev, ac);
+ }
+ }
+ spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+ }
+
+ return 0;
+ err_del_interface:
+ drv_remove_interface(local, sdata);
+ err_stop:
+ if (!local->open_count)
+ drv_stop(local);
+ err_del_bss:
+ sdata->bss = NULL;
+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
+ mutex_lock(&local->mtx);
+ list_del(&sdata->u.vlan.list);
+ mutex_unlock(&local->mtx);
+ }
+ /* might already be clear but that doesn't matter */
+ clear_bit(SDATA_STATE_RUNNING, &sdata->state);
+ return res;
+}
static void ieee80211_if_free(struct net_device *dev)
{
@@ -1303,6 +1410,11 @@
WARN_ON(1);
break;
}
+ } else if (ieee80211_is_ext(mgmt->frame_control)) {
+ if (sdata->vif.type == NL80211_IFTYPE_STATION)
+ ieee80211_sta_rx_queued_ext(sdata, skb);
+ else
+ WARN_ON(1);
} else if (ieee80211_is_data_qos(mgmt->frame_control)) {
struct ieee80211_hdr *hdr = (void *)mgmt;
/*
@@ -1401,8 +1513,11 @@
sdata->control_port_protocol = cpu_to_be16(ETH_P_PAE);
sdata->control_port_no_encrypt = false;
+ sdata->control_port_over_nl80211 = false;
+ sdata->control_port_no_preauth = false;
sdata->encrypt_headroom = IEEE80211_ENCRYPT_HEADROOM;
sdata->vif.bss_conf.idle = true;
+ sdata->vif.bss_conf.txpower = INT_MIN; /* unset */
sdata->noack_map = 0;
@@ -1424,20 +1539,17 @@
type = NL80211_IFTYPE_AP;
sdata->vif.type = type;
sdata->vif.p2p = true;
- /* fall through */
+ fallthrough;
case NL80211_IFTYPE_AP:
skb_queue_head_init(&sdata->u.ap.ps.bc_buf);
INIT_LIST_HEAD(&sdata->u.ap.vlans);
- INIT_WORK(&sdata->u.ap.request_smps_work,
- ieee80211_request_smps_ap_work);
sdata->vif.bss_conf.bssid = sdata->vif.addr;
- sdata->u.ap.req_smps = IEEE80211_SMPS_OFF;
break;
case NL80211_IFTYPE_P2P_CLIENT:
type = NL80211_IFTYPE_STATION;
sdata->vif.type = type;
sdata->vif.p2p = true;
- /* fall through */
+ fallthrough;
case NL80211_IFTYPE_STATION:
sdata->vif.bss_conf.bssid = sdata->u.mgd.bssid;
ieee80211_sta_setup_sdata(sdata);
@@ -1546,6 +1658,7 @@
ieee80211_teardown_sdata(sdata);
+ ieee80211_set_sdata_offload_flags(sdata);
ret = drv_change_interface(local, sdata, internal_type, p2p);
if (ret)
type = ieee80211_vif_type_p2p(&sdata->vif);
@@ -1558,6 +1671,7 @@
ieee80211_check_queues(sdata, type);
ieee80211_setup_sdata(sdata, type);
+ ieee80211_set_vif_encap_ops(sdata);
err = ieee80211_do_open(&sdata->wdev, false);
WARN(err, "type change: do_open returned %d", err);
@@ -1639,7 +1753,7 @@
goto out_unlock;
}
}
- /* fall through */
+ fallthrough;
default:
/* assign a new address if possible -- try n_addresses first */
for (i = 0; i < local->hw.wiphy->n_addresses; i++) {
@@ -1766,19 +1880,23 @@
txq_size += sizeof(struct txq_info) +
local->hw.txq_data_size;
- if (local->ops->wake_tx_queue)
+ if (local->ops->wake_tx_queue) {
if_setup = ieee80211_if_setup_no_queue;
- else
+ } else {
if_setup = ieee80211_if_setup;
-
- if (local->hw.queues >= IEEE80211_NUM_ACS)
- txqs = IEEE80211_NUM_ACS;
+ if (local->hw.queues >= IEEE80211_NUM_ACS)
+ txqs = IEEE80211_NUM_ACS;
+ }
ndev = alloc_netdev_mqs(size + txq_size,
name, name_assign_type,
if_setup, txqs, 1);
if (!ndev)
return -ENOMEM;
+
+ if (!local->ops->wake_tx_queue && local->hw.wiphy->tx_queue_len)
+ ndev->tx_queue_len = local->hw.wiphy->tx_queue_len;
+
dev_net_set(ndev, wiphy_net(local->hw.wiphy));
ndev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
@@ -1804,7 +1922,7 @@
}
ieee80211_assign_perm_addr(local, ndev->perm_addr, type);
- if (params && is_valid_ether_addr(params->macaddr))
+ if (is_valid_ether_addr(params->macaddr))
memcpy(ndev->dev_addr, params->macaddr, ETH_ALEN);
else
memcpy(ndev->dev_addr, ndev->perm_addr, ETH_ALEN);
@@ -1872,19 +1990,26 @@
ieee80211_setup_sdata(sdata, type);
if (ndev) {
- if (params) {
- ndev->ieee80211_ptr->use_4addr = params->use_4addr;
- if (type == NL80211_IFTYPE_STATION)
- sdata->u.mgd.use_4addr = params->use_4addr;
- }
+ ndev->ieee80211_ptr->use_4addr = params->use_4addr;
+ if (type == NL80211_IFTYPE_STATION)
+ sdata->u.mgd.use_4addr = params->use_4addr;
ndev->features |= local->hw.netdev_features;
+ ndev->hw_features |= ndev->features &
+ MAC80211_SUPPORTED_FEATURES_TX;
netdev_set_default_ethtool_ops(ndev, &ieee80211_ethtool_ops);
- /* MTU range: 256 - 2304 */
+ /* MTU range is normally 256 - 2304, where the upper limit is
+ * the maximum MSDU size. Monitor interfaces send and receive
+ * MPDU and A-MSDU frames which may be much larger so we do
+ * not impose an upper limit in that case.
+ */
ndev->min_mtu = 256;
- ndev->max_mtu = IEEE80211_MAX_DATA_LEN;
+ if (type == NL80211_IFTYPE_MONITOR)
+ ndev->max_mtu = 0;
+ else
+ ndev->max_mtu = local->hw.max_mtu;
ret = register_netdevice(ndev);
if (ret) {
--
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