diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-14 10:37:28 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-14 10:37:28 -0700 |
commit | d7e9660ad9d5e0845f52848bce31bcf5cdcdea6b (patch) | |
tree | c6c67d145771187b194d79d603742b31090a59d6 /net/mac80211/main.c | |
parent | b8cb48aae1b8c50b37dcb7710363aa69a7a0d9ca (diff) | |
parent | 13af7a6ea502fcdd4c0e3d7de6e332b102309491 (diff) | |
download | blackbird-op-linux-d7e9660ad9d5e0845f52848bce31bcf5cdcdea6b.tar.gz blackbird-op-linux-d7e9660ad9d5e0845f52848bce31bcf5cdcdea6b.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1623 commits)
netxen: update copyright
netxen: fix tx timeout recovery
netxen: fix file firmware leak
netxen: improve pci memory access
netxen: change firmware write size
tg3: Fix return ring size breakage
netxen: build fix for INET=n
cdc-phonet: autoconfigure Phonet address
Phonet: back-end for autoconfigured addresses
Phonet: fix netlink address dump error handling
ipv6: Add IFA_F_DADFAILED flag
net: Add DEVTYPE support for Ethernet based devices
mv643xx_eth.c: remove unused txq_set_wrr()
ucc_geth: Fix hangs after switching from full to half duplex
ucc_geth: Rearrange some code to avoid forward declarations
phy/marvell: Make non-aneg speed/duplex forcing work for 88E1111 PHYs
drivers/net/phy: introduce missing kfree
drivers/net/wan: introduce missing kfree
net: force bridge module(s) to be GPL
Subject: [PATCH] appletalk: Fix skb leak when ipddp interface is not loaded
...
Fixed up trivial conflicts:
- arch/x86/include/asm/socket.h
converted to <asm-generic/socket.h> in the x86 tree. The generic
header has the same new #define's, so that works out fine.
- drivers/net/tun.c
fix conflict between 89f56d1e9 ("tun: reuse struct sock fields") that
switched over to using 'tun->socket.sk' instead of the redundantly
available (and thus removed) 'tun->sk', and 2b980dbd ("lsm: Add hooks
to the TUN driver") which added a new 'tun->sk' use.
Noted in 'next' by Stephen Rothwell.
Diffstat (limited to 'net/mac80211/main.c')
-rw-r--r-- | net/mac80211/main.c | 200 |
1 files changed, 62 insertions, 138 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 092a017b237e..797f53942e5f 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -50,9 +50,9 @@ struct ieee80211_tx_status_rtap_hdr { } __attribute__ ((packed)); -/* must be called under mdev tx lock */ void ieee80211_configure_filter(struct ieee80211_local *local) { + u64 mc; unsigned int changed_flags; unsigned int new_flags = 0; @@ -62,7 +62,7 @@ void ieee80211_configure_filter(struct ieee80211_local *local) if (atomic_read(&local->iff_allmultis)) new_flags |= FIF_ALLMULTI; - if (local->monitors) + if (local->monitors || local->scanning) new_flags |= FIF_BCN_PRBRESP_PROMISC; if (local->fif_fcsfail) @@ -77,77 +77,29 @@ void ieee80211_configure_filter(struct ieee80211_local *local) if (local->fif_other_bss) new_flags |= FIF_OTHER_BSS; + if (local->fif_pspoll) + new_flags |= FIF_PSPOLL; + + spin_lock_bh(&local->filter_lock); changed_flags = local->filter_flags ^ new_flags; + mc = drv_prepare_multicast(local, local->mc_count, local->mc_list); + spin_unlock_bh(&local->filter_lock); + /* be a bit nasty */ new_flags |= (1<<31); - drv_configure_filter(local, changed_flags, &new_flags, - local->mdev->mc_count, - local->mdev->mc_list); + drv_configure_filter(local, changed_flags, &new_flags, mc); WARN_ON(new_flags & (1<<31)); local->filter_flags = new_flags & ~(1<<31); } -/* master interface */ - -static int header_parse_80211(const struct sk_buff *skb, unsigned char *haddr) -{ - memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */ - return ETH_ALEN; -} - -static const struct header_ops ieee80211_header_ops = { - .create = eth_header, - .parse = header_parse_80211, - .rebuild = eth_rebuild_header, - .cache = eth_header_cache, - .cache_update = eth_header_cache_update, -}; - -static int ieee80211_master_open(struct net_device *dev) +static void ieee80211_reconfig_filter(struct work_struct *work) { - struct ieee80211_master_priv *mpriv = netdev_priv(dev); - struct ieee80211_local *local = mpriv->local; - struct ieee80211_sub_if_data *sdata; - int res = -EOPNOTSUPP; - - /* we hold the RTNL here so can safely walk the list */ - list_for_each_entry(sdata, &local->interfaces, list) { - if (netif_running(sdata->dev)) { - res = 0; - break; - } - } - - if (res) - return res; - - netif_tx_start_all_queues(local->mdev); - - return 0; -} - -static int ieee80211_master_stop(struct net_device *dev) -{ - struct ieee80211_master_priv *mpriv = netdev_priv(dev); - struct ieee80211_local *local = mpriv->local; - struct ieee80211_sub_if_data *sdata; - - /* we hold the RTNL here so can safely walk the list */ - list_for_each_entry(sdata, &local->interfaces, list) - if (netif_running(sdata->dev)) - dev_close(sdata->dev); - - return 0; -} - -static void ieee80211_master_set_multicast_list(struct net_device *dev) -{ - struct ieee80211_master_priv *mpriv = netdev_priv(dev); - struct ieee80211_local *local = mpriv->local; + struct ieee80211_local *local = + container_of(work, struct ieee80211_local, reconfig_filter); ieee80211_configure_filter(local); } @@ -259,7 +211,8 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, } if (changed & BSS_CHANGED_BEACON_ENABLED) { - if (local->sw_scanning) { + if (local->quiescing || !netif_running(sdata->dev) || + test_bit(SCAN_SW_SCANNING, &local->scanning)) { sdata->vif.bss_conf.enable_beacon = false; } else { /* @@ -288,9 +241,6 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, drv_bss_info_changed(local, &sdata->vif, &sdata->vif.bss_conf, changed); - - /* DEPRECATED */ - local->hw.conf.beacon_int = sdata->vif.bss_conf.beacon_int; } u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) @@ -310,7 +260,6 @@ void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw, struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); int tmp; - skb->dev = local->mdev; skb->pkt_type = IEEE80211_TX_STATUS_MSG; skb_queue_tail(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS ? &local->skb_queue : &local->skb_queue_unreliable, skb); @@ -330,19 +279,16 @@ static void ieee80211_tasklet_handler(unsigned long data) { struct ieee80211_local *local = (struct ieee80211_local *) data; struct sk_buff *skb; - struct ieee80211_rx_status rx_status; struct ieee80211_ra_tid *ra_tid; while ((skb = skb_dequeue(&local->skb_queue)) || (skb = skb_dequeue(&local->skb_queue_unreliable))) { switch (skb->pkt_type) { case IEEE80211_RX_MSG: - /* status is in skb->cb */ - memcpy(&rx_status, skb->cb, sizeof(rx_status)); /* Clear skb->pkt_type in order to not confuse kernel * netstack. */ skb->pkt_type = 0; - __ieee80211_rx(local_to_hw(local), skb, &rx_status); + ieee80211_rx(local_to_hw(local), skb); break; case IEEE80211_TX_STATUS_MSG: skb->pkt_type = 0; @@ -375,6 +321,31 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local, { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + /* + * XXX: This is temporary! + * + * The problem here is that when we get here, the driver will + * quite likely have pretty much overwritten info->control by + * using info->driver_data or info->rate_driver_data. Thus, + * when passing out the frame to the driver again, we would be + * passing completely bogus data since the driver would then + * expect a properly filled info->control. In mac80211 itself + * the same problem occurs, since we need info->control.vif + * internally. + * + * To fix this, we should send the frame through TX processing + * again. However, it's not that simple, since the frame will + * have been software-encrypted (if applicable) already, and + * encrypting it again doesn't do much good. So to properly do + * that, we not only have to skip the actual 'raw' encryption + * (key selection etc. still has to be done!) but also the + * sequence number assignment since that impacts the crypto + * encapsulation, of course. + * + * Hence, for now, fix the bug by just dropping the frame. + */ + goto drop; + sta->tx_filtered_count++; /* @@ -428,6 +399,7 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local, return; } + drop: #ifdef CONFIG_MAC80211_VERBOSE_DEBUG if (net_ratelimit()) printk(KERN_DEBUG "%s: dropped TX filtered frame, " @@ -510,6 +482,8 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) } rate_control_tx_status(local, sband, sta, skb); + if (ieee80211_vif_is_mesh(&sta->sdata->vif)) + ieee80211s_update_metric(local, sta, skb); } rcu_read_unlock(); @@ -685,6 +659,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, if (!wiphy) return NULL; + wiphy->netnsok = true; wiphy->privid = mac80211_wiphy_privid; /* Yes, putting cfg80211_bss into ieee80211_bss is a hack */ @@ -711,7 +686,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, local->hw.max_rates = 1; local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; - local->hw.conf.radio_enabled = true; local->user_power_level = -1; INIT_LIST_HEAD(&local->interfaces); @@ -719,13 +693,15 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, mutex_init(&local->scan_mtx); spin_lock_init(&local->key_lock); - + spin_lock_init(&local->filter_lock); spin_lock_init(&local->queue_stop_reason_lock); INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); INIT_WORK(&local->restart_work, ieee80211_restart_work); + INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); + INIT_WORK(&local->dynamic_ps_enable_work, ieee80211_dynamic_ps_enable_work); INIT_WORK(&local->dynamic_ps_disable_work, @@ -739,12 +715,10 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, skb_queue_head_init(&local->pending[i]); tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, (unsigned long)local); - tasklet_disable(&local->tx_pending_tasklet); tasklet_init(&local->tasklet, ieee80211_tasklet_handler, (unsigned long) local); - tasklet_disable(&local->tasklet); skb_queue_head_init(&local->skb_queue); skb_queue_head_init(&local->skb_queue_unreliable); @@ -755,30 +729,11 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, } EXPORT_SYMBOL(ieee80211_alloc_hw); -static const struct net_device_ops ieee80211_master_ops = { - .ndo_start_xmit = ieee80211_master_start_xmit, - .ndo_open = ieee80211_master_open, - .ndo_stop = ieee80211_master_stop, - .ndo_set_multicast_list = ieee80211_master_set_multicast_list, - .ndo_select_queue = ieee80211_select_queue, -}; - -static void ieee80211_master_setup(struct net_device *mdev) -{ - mdev->type = ARPHRD_IEEE80211; - mdev->netdev_ops = &ieee80211_master_ops; - mdev->header_ops = &ieee80211_header_ops; - mdev->tx_queue_len = 1000; - mdev->addr_len = ETH_ALEN; -} - int ieee80211_register_hw(struct ieee80211_hw *hw) { struct ieee80211_local *local = hw_to_local(hw); int result; enum ieee80211_band band; - struct net_device *mdev; - struct ieee80211_master_priv *mpriv; int channels, i, j, max_bitrates; bool supp_ht; static const u32 cipher_suites[] = { @@ -818,9 +773,9 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) supp_ht = supp_ht || sband->ht_cap.ht_supported; } - local->int_scan_req.n_channels = channels; - local->int_scan_req.channels = kzalloc(sizeof(void *) * channels, GFP_KERNEL); - if (!local->int_scan_req.channels) + local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + + sizeof(void *) * channels, GFP_KERNEL); + if (!local->int_scan_req) return -ENOMEM; /* if low-level driver supports AP, we also support VLAN */ @@ -877,19 +832,9 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) if (hw->queues > IEEE80211_MAX_QUEUES) hw->queues = IEEE80211_MAX_QUEUES; - mdev = alloc_netdev_mq(sizeof(struct ieee80211_master_priv), - "wmaster%d", ieee80211_master_setup, - hw->queues); - if (!mdev) - goto fail_mdev_alloc; - - mpriv = netdev_priv(mdev); - mpriv->local = local; - local->mdev = mdev; - - local->hw.workqueue = + local->workqueue = create_singlethread_workqueue(wiphy_name(local->hw.wiphy)); - if (!local->hw.workqueue) { + if (!local->workqueue) { result = -ENOMEM; goto fail_workqueue; } @@ -921,17 +866,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) } rtnl_lock(); - result = dev_alloc_name(local->mdev, local->mdev->name); - if (result < 0) - goto fail_dev; - - memcpy(local->mdev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN); - SET_NETDEV_DEV(local->mdev, wiphy_dev(local->hw.wiphy)); - local->mdev->features |= NETIF_F_NETNS_LOCAL; - - result = register_netdevice(local->mdev); - if (result < 0) - goto fail_dev; result = ieee80211_init_rate_ctrl_alg(local, hw->rate_control_algorithm); @@ -956,13 +890,13 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) /* alloc internal scan request */ i = 0; - local->int_scan_req.ssids = &local->scan_ssid; - local->int_scan_req.n_ssids = 1; + local->int_scan_req->ssids = &local->scan_ssid; + local->int_scan_req->n_ssids = 1; for (band = 0; band < IEEE80211_NUM_BANDS; band++) { if (!hw->wiphy->bands[band]) continue; for (j = 0; j < hw->wiphy->bands[band]->n_channels; j++) { - local->int_scan_req.channels[i] = + local->int_scan_req->channels[i] = &hw->wiphy->bands[band]->channels[j]; i++; } @@ -984,23 +918,17 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) ieee80211_led_exit(local); ieee80211_remove_interfaces(local); fail_rate: - unregister_netdevice(local->mdev); - local->mdev = NULL; - fail_dev: rtnl_unlock(); ieee80211_wep_free(local); fail_wep: sta_info_stop(local); fail_sta_info: debugfs_hw_del(local); - destroy_workqueue(local->hw.workqueue); + destroy_workqueue(local->workqueue); fail_workqueue: - if (local->mdev) - free_netdev(local->mdev); - fail_mdev_alloc: wiphy_unregister(local->hw.wiphy); fail_wiphy_register: - kfree(local->int_scan_req.channels); + kfree(local->int_scan_req); return result; } EXPORT_SYMBOL(ieee80211_register_hw); @@ -1022,15 +950,12 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw) * because the driver cannot be handing us frames any * more and the tasklet is killed. */ - - /* First, we remove all virtual interfaces. */ ieee80211_remove_interfaces(local); - /* then, finally, remove the master interface */ - unregister_netdevice(local->mdev); - rtnl_unlock(); + cancel_work_sync(&local->reconfig_filter); + ieee80211_clear_tx_pending(local); sta_info_stop(local); rate_control_deinitialize(local); @@ -1043,12 +968,11 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw) skb_queue_purge(&local->skb_queue); skb_queue_purge(&local->skb_queue_unreliable); - destroy_workqueue(local->hw.workqueue); + destroy_workqueue(local->workqueue); wiphy_unregister(local->hw.wiphy); ieee80211_wep_free(local); ieee80211_led_exit(local); - free_netdev(local->mdev); - kfree(local->int_scan_req.channels); + kfree(local->int_scan_req); } EXPORT_SYMBOL(ieee80211_unregister_hw); |