main.c revision 10f644a47b76d3e61b98f2d02ce9690b94c51ee5
1f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc/* 2f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * Copyright 2002-2005, Instant802 Networks, Inc. 3f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * Copyright 2005-2006, Devicescape Software, Inc. 4f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> 5f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * 6f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * This program is free software; you can redistribute it and/or modify 7f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * it under the terms of the GNU General Public License version 2 as 8f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * published by the Free Software Foundation. 9f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc */ 10f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 11f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <net/mac80211.h> 12f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <net/ieee80211_radiotap.h> 13f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/module.h> 14f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/init.h> 15f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/netdevice.h> 16f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/types.h> 17f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/slab.h> 18f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/skbuff.h> 19f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/etherdevice.h> 20f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/if_arp.h> 21f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/wireless.h> 22f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/rtnetlink.h> 23f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/bitmap.h> 2410f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg#include <linux/pm_qos_params.h> 25881d966b48b035ab3f3aeaae0f3d3f9b584f45b2Eric W. Biederman#include <net/net_namespace.h> 26f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <net/cfg80211.h> 27f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 28f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include "ieee80211_i.h" 292c8dccc77420fb7433da5674818959d3499d35beJohannes Berg#include "rate.h" 30f7a921443740d7dafc65b17aa32531730d358f50Luis Carlos Cobo#include "mesh.h" 31f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include "wep.h" 32f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include "wme.h" 33f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include "aes_ccm.h" 342c8dccc77420fb7433da5674818959d3499d35beJohannes Berg#include "led.h" 35e0eb68596232788bc352368f2fbc3cb088e42e41Michael Wu#include "cfg.h" 36e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc#include "debugfs.h" 37e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc#include "debugfs_netdev.h" 38f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 39b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg/* 40b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * For seeing transmitted packets on monitor interfaces 41b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * we have a radiotap header too. 42b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg */ 43b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Bergstruct ieee80211_tx_status_rtap_hdr { 44b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg struct ieee80211_radiotap_header hdr; 45e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg u8 rate; 46e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg u8 padding_for_rate; 47b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg __le16 tx_flags; 48b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg u8 data_retries; 49b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg} __attribute__ ((packed)); 50b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 51f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 524150c57212ad134765dd78c654a4b9906252b66dJohannes Berg/* must be called under mdev tx lock */ 530d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Bergvoid ieee80211_configure_filter(struct ieee80211_local *local) 544150c57212ad134765dd78c654a4b9906252b66dJohannes Berg{ 554150c57212ad134765dd78c654a4b9906252b66dJohannes Berg unsigned int changed_flags; 564150c57212ad134765dd78c654a4b9906252b66dJohannes Berg unsigned int new_flags = 0; 574150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 5853918994b7c8c3bf0af5f641e1f299856799d883Johannes Berg if (atomic_read(&local->iff_promiscs)) 594150c57212ad134765dd78c654a4b9906252b66dJohannes Berg new_flags |= FIF_PROMISC_IN_BSS; 604150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 6153918994b7c8c3bf0af5f641e1f299856799d883Johannes Berg if (atomic_read(&local->iff_allmultis)) 624150c57212ad134765dd78c654a4b9906252b66dJohannes Berg new_flags |= FIF_ALLMULTI; 634150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 644150c57212ad134765dd78c654a4b9906252b66dJohannes Berg if (local->monitors) 658cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_BCN_PRBRESP_PROMISC; 668cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu 678cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu if (local->fif_fcsfail) 688cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_FCSFAIL; 698cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu 708cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu if (local->fif_plcpfail) 718cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_PLCPFAIL; 728cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu 738cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu if (local->fif_control) 748cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_CONTROL; 758cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu 768cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu if (local->fif_other_bss) 778cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_OTHER_BSS; 784150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 794150c57212ad134765dd78c654a4b9906252b66dJohannes Berg changed_flags = local->filter_flags ^ new_flags; 804150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 814150c57212ad134765dd78c654a4b9906252b66dJohannes Berg /* be a bit nasty */ 824150c57212ad134765dd78c654a4b9906252b66dJohannes Berg new_flags |= (1<<31); 834150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 844150c57212ad134765dd78c654a4b9906252b66dJohannes Berg local->ops->configure_filter(local_to_hw(local), 854150c57212ad134765dd78c654a4b9906252b66dJohannes Berg changed_flags, &new_flags, 864150c57212ad134765dd78c654a4b9906252b66dJohannes Berg local->mdev->mc_count, 874150c57212ad134765dd78c654a4b9906252b66dJohannes Berg local->mdev->mc_list); 884150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 894150c57212ad134765dd78c654a4b9906252b66dJohannes Berg WARN_ON(new_flags & (1<<31)); 904150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 914150c57212ad134765dd78c654a4b9906252b66dJohannes Berg local->filter_flags = new_flags & ~(1<<31); 924150c57212ad134765dd78c654a4b9906252b66dJohannes Berg} 934150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 94b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg/* master interface */ 95f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 960d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Bergstatic int header_parse_80211(const struct sk_buff *skb, unsigned char *haddr) 970d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg{ 980d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */ 990d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg return ETH_ALEN; 1000d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg} 1010d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg 1020d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Bergstatic const struct header_ops ieee80211_header_ops = { 1030d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg .create = eth_header, 1040d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg .parse = header_parse_80211, 1050d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg .rebuild = eth_rebuild_header, 1060d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg .cache = eth_header_cache, 1070d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg .cache_update = eth_header_cache_update, 1080d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg}; 1090d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg 110b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Bergstatic int ieee80211_master_open(struct net_device *dev) 111b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg{ 112133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_master_priv *mpriv = netdev_priv(dev); 113133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_local *local = mpriv->local; 114b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg struct ieee80211_sub_if_data *sdata; 115b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg int res = -EOPNOTSUPP; 116f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 11779010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg /* we hold the RTNL here so can safely walk the list */ 11879010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 1193e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg if (netif_running(sdata->dev)) { 120b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg res = 0; 121b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg break; 122b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg } 123b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg } 12436d6825b91bc492b65b6333c369cd96a2fc8c903Johannes Berg 12536d6825b91bc492b65b6333c369cd96a2fc8c903Johannes Berg if (res) 12636d6825b91bc492b65b6333c369cd96a2fc8c903Johannes Berg return res; 12736d6825b91bc492b65b6333c369cd96a2fc8c903Johannes Berg 12851cb6db0f5654f08a4a6bfa3888dc36a51c2df3eDavid S. Miller netif_tx_start_all_queues(local->mdev); 12936d6825b91bc492b65b6333c369cd96a2fc8c903Johannes Berg 13036d6825b91bc492b65b6333c369cd96a2fc8c903Johannes Berg return 0; 131b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg} 132f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 133b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Bergstatic int ieee80211_master_stop(struct net_device *dev) 134f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 135133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_master_priv *mpriv = netdev_priv(dev); 136133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_local *local = mpriv->local; 137b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg struct ieee80211_sub_if_data *sdata; 138f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 13979010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg /* we hold the RTNL here so can safely walk the list */ 14079010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) 1413e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg if (netif_running(sdata->dev)) 142b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg dev_close(sdata->dev); 143f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 144b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg return 0; 145b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg} 146f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1474150c57212ad134765dd78c654a4b9906252b66dJohannes Bergstatic void ieee80211_master_set_multicast_list(struct net_device *dev) 1484150c57212ad134765dd78c654a4b9906252b66dJohannes Berg{ 149133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_master_priv *mpriv = netdev_priv(dev); 150133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_local *local = mpriv->local; 1514150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 1524150c57212ad134765dd78c654a4b9906252b66dJohannes Berg ieee80211_configure_filter(local); 1534150c57212ad134765dd78c654a4b9906252b66dJohannes Berg} 1544150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 155b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg/* everything else */ 156b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg 1579d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Bergint ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed) 158b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg{ 1599d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg struct ieee80211_local *local = sdata->local; 160b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg struct ieee80211_if_conf conf; 161b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg 1629d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg if (WARN_ON(!netif_running(sdata->dev))) 1639d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg return 0; 1649d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg 165b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg memset(&conf, 0, sizeof(conf)); 1669d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg 167469002983fc90c2ff0959e2b03335c0fe2e4d5a9Johannes Berg if (sdata->vif.type == NL80211_IFTYPE_STATION) 168469002983fc90c2ff0959e2b03335c0fe2e4d5a9Johannes Berg conf.bssid = sdata->u.mgd.bssid; 169469002983fc90c2ff0959e2b03335c0fe2e4d5a9Johannes Berg else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) 170469002983fc90c2ff0959e2b03335c0fe2e4d5a9Johannes Berg conf.bssid = sdata->u.ibss.bssid; 17141bb73eeac5ff5fb217257ba33b654747b3abf11Johannes Berg else if (sdata->vif.type == NL80211_IFTYPE_AP) 1729d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg conf.bssid = sdata->dev->dev_addr; 17341bb73eeac5ff5fb217257ba33b654747b3abf11Johannes Berg else if (ieee80211_vif_is_mesh(&sdata->vif)) { 1745f936f11613c32ca7f8ed5fa333bb38a4501deebJohannes Berg static const u8 zero[ETH_ALEN] = { 0 }; 1759d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg conf.bssid = zero; 1769d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg } else { 1779d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg WARN_ON(1); 1789d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg return -EINVAL; 179f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 180f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 181b5bde374f0f61f5d97114d400ade8fc96bf6f10dJohannes Berg if (!local->ops->config_interface) 182b5bde374f0f61f5d97114d400ade8fc96bf6f10dJohannes Berg return 0; 183b5bde374f0f61f5d97114d400ade8fc96bf6f10dJohannes Berg 184078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg switch (sdata->vif.type) { 185078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg case NL80211_IFTYPE_AP: 186078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg case NL80211_IFTYPE_ADHOC: 187078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg case NL80211_IFTYPE_MESH_POINT: 188078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg break; 189078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg default: 190078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg /* do not warn to simplify caller in scan.c */ 191078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg changed &= ~IEEE80211_IFCC_BEACON_ENABLED; 192078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg if (WARN_ON(changed & IEEE80211_IFCC_BEACON)) 193078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg return -EINVAL; 194078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg changed &= ~IEEE80211_IFCC_BEACON; 195078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg break; 196078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg } 197078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg 198078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg if (changed & IEEE80211_IFCC_BEACON_ENABLED) { 199078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg if (local->sw_scanning) { 200078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg conf.enable_beacon = false; 201078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg } else { 202078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg /* 203078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg * Beacon should be enabled, but AP mode must 204078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg * check whether there is a beacon configured. 205078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg */ 206078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg switch (sdata->vif.type) { 207078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg case NL80211_IFTYPE_AP: 208078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg conf.enable_beacon = 209078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg !!rcu_dereference(sdata->u.ap.beacon); 210078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg break; 211078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg case NL80211_IFTYPE_ADHOC: 212469002983fc90c2ff0959e2b03335c0fe2e4d5a9Johannes Berg conf.enable_beacon = !!sdata->u.ibss.probe_resp; 2135e1333624827e7a91b2d2cc04ce978f050cae15eJohannes Berg break; 214078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg case NL80211_IFTYPE_MESH_POINT: 215078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg conf.enable_beacon = true; 216078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg break; 217078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg default: 218078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg /* not reached */ 219078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg WARN_ON(1); 220078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg break; 221078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg } 222078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg } 223078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg } 224078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg 225078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg conf.changed = changed; 226078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ffJohannes Berg 2279d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg return local->ops->config_interface(local_to_hw(local), 2289d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg &sdata->vif, &conf); 229b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg} 230f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 231e8975581f63870be42ff4662b293d1b0c8c21350Johannes Bergint ieee80211_hw_config(struct ieee80211_local *local, u32 changed) 232b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg{ 233b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg struct ieee80211_channel *chan; 234b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg int ret = 0; 235e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg int power; 236094d05dc32fc2930e381189a942016e5561775d9Sujith enum nl80211_channel_type channel_type; 237f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 238cb121bad67a32cde37adc2729b7e18aa4fd3063eJohannes Berg might_sleep(); 239cb121bad67a32cde37adc2729b7e18aa4fd3063eJohannes Berg 24072bdcf34380917260da41e3c49e10edee04bc5cdJouni Malinen if (local->sw_scanning) { 241b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg chan = local->scan_channel; 242094d05dc32fc2930e381189a942016e5561775d9Sujith channel_type = NL80211_CHAN_NO_HT; 24372bdcf34380917260da41e3c49e10edee04bc5cdJouni Malinen } else { 244b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg chan = local->oper_channel; 245094d05dc32fc2930e381189a942016e5561775d9Sujith channel_type = local->oper_channel_type; 24672bdcf34380917260da41e3c49e10edee04bc5cdJouni Malinen } 247f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 24872bdcf34380917260da41e3c49e10edee04bc5cdJouni Malinen if (chan != local->hw.conf.channel || 2494797938c5dfa22af30fd16679192972f878419a1Johannes Berg channel_type != local->hw.conf.channel_type) { 250e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg local->hw.conf.channel = chan; 2514797938c5dfa22af30fd16679192972f878419a1Johannes Berg local->hw.conf.channel_type = channel_type; 252e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg changed |= IEEE80211_CONF_CHANGE_CHANNEL; 253e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg } 2548318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg 255a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan if (local->sw_scanning) 256e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg power = chan->max_power; 2578318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg else 258a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan power = local->power_constr_level ? 259a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan (chan->max_power - local->power_constr_level) : 260a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan chan->max_power; 261a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan 26247afbaf5af9454a7a1a64591e20cbfcc27ca67a8Johannes Berg if (local->user_power_level >= 0) 263a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan power = min(power, local->user_power_level); 264a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan 265e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg if (local->hw.conf.power_level != power) { 266e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg changed |= IEEE80211_CONF_CHANGE_POWER; 267e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg local->hw.conf.power_level = power; 268e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg } 269b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg 270e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg if (changed && local->open_count) { 271e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg ret = local->ops->config(local_to_hw(local), changed); 272d73782fdde76554016abf73b46f843b29f520848Johannes Berg /* 273447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * Goal: 274d73782fdde76554016abf73b46f843b29f520848Johannes Berg * HW reconfiguration should never fail, the driver has told 275d73782fdde76554016abf73b46f843b29f520848Johannes Berg * us what it can support so it should live up to that promise. 276447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * 277447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * Current status: 278447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * rfkill is not integrated with mac80211 and a 279447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * configuration command can thus fail if hardware rfkill 280447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * is enabled 281447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * 282447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * FIXME: integrate rfkill with mac80211 and then add this 283447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * WARN_ON() back 284447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * 285d73782fdde76554016abf73b46f843b29f520848Johannes Berg */ 286447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre /* WARN_ON(ret); */ 287d73782fdde76554016abf73b46f843b29f520848Johannes Berg } 288f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 289b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg return ret; 290b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg} 291f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 292471b3efdfccc257591331724145f8ccf8b3217e1Johannes Bergvoid ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, 293471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg u32 changed) 294d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake{ 295471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg struct ieee80211_local *local = sdata->local; 296471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg 2977a725f73403e874ec52c58741e9b98cd604dbd03Johannes Berg if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN)) 2987a725f73403e874ec52c58741e9b98cd604dbd03Johannes Berg return; 2997a725f73403e874ec52c58741e9b98cd604dbd03Johannes Berg 300471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg if (!changed) 301471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg return; 302471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg 303471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg if (local->ops->bss_info_changed) 304471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg local->ops->bss_info_changed(local_to_hw(local), 305471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg &sdata->vif, 306bda3933a8aceedd03e0dd410844bd310033ca756Johannes Berg &sdata->vif.bss_conf, 307471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg changed); 308d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake} 309d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake 310f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greeneu32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) 311d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake{ 312bda3933a8aceedd03e0dd410844bd310033ca756Johannes Berg sdata->vif.bss_conf.use_cts_prot = false; 313bda3933a8aceedd03e0dd410844bd310033ca756Johannes Berg sdata->vif.bss_conf.use_short_preamble = false; 314bda3933a8aceedd03e0dd410844bd310033ca756Johannes Berg sdata->vif.bss_conf.use_short_slot = false; 3157a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg return BSS_CHANGED_ERP_CTS_PROT | 3167a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg BSS_CHANGED_ERP_PREAMBLE | 3177a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg BSS_CHANGED_ERP_SLOT; 318d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake} 319d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake 320f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencvoid ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw, 321e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct sk_buff *skb) 322f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 323f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 324e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 325f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc int tmp; 326f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 327f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb->dev = local->mdev; 328f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb->pkt_type = IEEE80211_TX_STATUS_MSG; 329e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg skb_queue_tail(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS ? 330f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc &local->skb_queue : &local->skb_queue_unreliable, skb); 331f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tmp = skb_queue_len(&local->skb_queue) + 332f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_len(&local->skb_queue_unreliable); 333f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc while (tmp > IEEE80211_IRQSAFE_QUEUE_LIMIT && 334f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (skb = skb_dequeue(&local->skb_queue_unreliable))) { 335f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb_irq(skb); 336f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tmp--; 337f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc I802_DEBUG_INC(local->tx_status_drop); 338f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 339f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_schedule(&local->tasklet); 340f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 341f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_tx_status_irqsafe); 342f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 343f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstatic void ieee80211_tasklet_handler(unsigned long data) 344f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 345f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = (struct ieee80211_local *) data; 346f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct sk_buff *skb; 347f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_rx_status rx_status; 348eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky struct ieee80211_ra_tid *ra_tid; 349f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 350f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc while ((skb = skb_dequeue(&local->skb_queue)) || 351f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (skb = skb_dequeue(&local->skb_queue_unreliable))) { 352f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc switch (skb->pkt_type) { 353f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc case IEEE80211_RX_MSG: 354f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* status is in skb->cb */ 355f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc memcpy(&rx_status, skb->cb, sizeof(rx_status)); 35651fb61e76d952e6bc2fbdd9f0d38425fbab1cf31Johannes Berg /* Clear skb->pkt_type in order to not confuse kernel 357f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * netstack. */ 358f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb->pkt_type = 0; 359f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc __ieee80211_rx(local_to_hw(local), skb, &rx_status); 360f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 361f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc case IEEE80211_TX_STATUS_MSG: 362f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb->pkt_type = 0; 363e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg ieee80211_tx_status(local_to_hw(local), skb); 364f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 365eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky case IEEE80211_DELBA_MSG: 366eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid = (struct ieee80211_ra_tid *) &skb->cb; 367eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ieee80211_stop_tx_ba_cb(local_to_hw(local), 368eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid->ra, ra_tid->tid); 369eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky dev_kfree_skb(skb); 370eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky break; 371eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky case IEEE80211_ADDBA_MSG: 372eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid = (struct ieee80211_ra_tid *) &skb->cb; 373eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ieee80211_start_tx_ba_cb(local_to_hw(local), 374eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid->ra, ra_tid->tid); 375eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky dev_kfree_skb(skb); 376eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky break ; 377f4ea83dd743d3e1bec8fdf954ac911c6b12ae87aJohannes Berg default: 3785e3f308997f53d00e8cbebdb89d4f6e347aa963aLarry Finger WARN(1, "mac80211: Packet is of unknown type %d\n", 3795e3f308997f53d00e8cbebdb89d4f6e347aa963aLarry Finger skb->pkt_type); 380f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb(skb); 381f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 382f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 383f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 384f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 385f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 386f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc/* Remove added headers (e.g., QoS control), encryption header/MIC, etc. to 387f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * make a prepared TX frame (one that has been given to hw) to look like brand 388f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * new IEEE 802.11 frame that is ready to go through TX processing again. 389d0f09804144fd9471a13cf4d80e66842c7fa114fJohannes Berg */ 390f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstatic void ieee80211_remove_tx_extra(struct ieee80211_local *local, 391f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_key *key, 392e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct sk_buff *skb) 393f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 39462bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison unsigned int hdrlen, iv_len, mic_len; 39562bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; 396f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 39762bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison hdrlen = ieee80211_hdrlen(hdr->frame_control); 398f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 399f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (!key) 400f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto no_key; 401f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 4028f20fc24986a083228823d9b68adca20714b254eJohannes Berg switch (key->conf.alg) { 403f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc case ALG_WEP: 404f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc iv_len = WEP_IV_LEN; 405f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc mic_len = WEP_ICV_LEN; 406f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 407f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc case ALG_TKIP: 408f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc iv_len = TKIP_IV_LEN; 409f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc mic_len = TKIP_ICV_LEN; 410f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 411f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc case ALG_CCMP: 412f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc iv_len = CCMP_HDR_LEN; 413f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc mic_len = CCMP_MIC_LEN; 414f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 415f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc default: 416f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto no_key; 417f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 418f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 41962bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison if (skb->len >= hdrlen + mic_len && 42011a843b7e16062389c53ba393c7913956e034eb2Johannes Berg !(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 421f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_trim(skb, skb->len - mic_len); 42262bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison if (skb->len >= hdrlen + iv_len) { 423f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc memmove(skb->data + iv_len, skb->data, hdrlen); 42462bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison hdr = (struct ieee80211_hdr *)skb_pull(skb, iv_len); 425f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 426f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 427f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencno_key: 42862bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison if (ieee80211_is_data_qos(hdr->frame_control)) { 42962bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison hdr->frame_control &= ~cpu_to_le16(IEEE80211_STYPE_QOS_DATA); 43062bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison memmove(skb->data + IEEE80211_QOS_CTL_LEN, skb->data, 43162bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison hdrlen - IEEE80211_QOS_CTL_LEN); 43262bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison skb_pull(skb, IEEE80211_QOS_CTL_LEN); 433f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 434f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 435f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 436d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Bergstatic void ieee80211_handle_filtered_frame(struct ieee80211_local *local, 437d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg struct sta_info *sta, 438e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct sk_buff *skb) 439d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg{ 440d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg sta->tx_filtered_count++; 441d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 442d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg /* 443d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * Clear the TX filter mask for this STA when sending the next 444d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * packet. If the STA went to power save mode, this will happen 445f6d97104890203ba9c2cf8e34894c4c8e64cb880Yi Zhu * when it wakes up for the next time. 446d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg */ 44707346f81e87d6e4cca7ae9adfa711d0c61c87b56Johannes Berg set_sta_flags(sta, WLAN_STA_CLEAR_PS_FILT); 448d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 449d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg /* 450d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * This code races in the following way: 451d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 452d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (1) STA sends frame indicating it will go to sleep and does so 453d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (2) hardware/firmware adds STA to filter list, passes frame up 454d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (3) hardware/firmware processes TX fifo and suppresses a frame 455d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (4) we get TX status before having processed the frame and 456d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * knowing that the STA has gone to sleep. 457d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 458d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * This is actually quite unlikely even when both those events are 459d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * processed from interrupts coming in quickly after one another or 460d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * even at the same time because we queue both TX status events and 461d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * RX frames to be processed by a tasklet and process them in the 462d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * same order that they were received or TX status last. Hence, there 463d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * is no race as long as the frame RX is processed before the next TX 464d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * status, which drivers can ensure, see below. 465d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 466d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * Note that this can only happen if the hardware or firmware can 467d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * actually add STAs to the filter list, if this is done by the 468d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * driver in response to set_tim() (which will only reduce the race 469d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * this whole filtering tries to solve, not completely solve it) 470d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * this situation cannot happen. 471d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 472d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * To completely solve this race drivers need to make sure that they 473d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (a) don't mix the irq-safe/not irq-safe TX status/RX processing 474d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * functions and 475d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (b) always process RX events before TX status events if ordering 476d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * can be unknown, for example with different interrupt status 477d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * bits. 478d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg */ 47907346f81e87d6e4cca7ae9adfa711d0c61c87b56Johannes Berg if (test_sta_flags(sta, WLAN_STA_PS) && 480d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg skb_queue_len(&sta->tx_filtered) < STA_MAX_TX_BUFFER) { 481e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg ieee80211_remove_tx_extra(local, sta->key, skb); 482d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg skb_queue_tail(&sta->tx_filtered, skb); 483d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg return; 484d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg } 485d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 4868b30b1fe368ab03049435884c11c5c50e4c4ef0bSujith if (!test_sta_flags(sta, WLAN_STA_PS) && !skb->requeue) { 487d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg /* Software retry the packet once */ 4888b30b1fe368ab03049435884c11c5c50e4c4ef0bSujith skb->requeue = 1; 489e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg ieee80211_remove_tx_extra(local, sta->key, skb); 490d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg dev_queue_xmit(skb); 491d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg return; 492d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg } 493d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 494f4ea83dd743d3e1bec8fdf954ac911c6b12ae87aJohannes Berg#ifdef CONFIG_MAC80211_VERBOSE_DEBUG 495d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg if (net_ratelimit()) 496d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg printk(KERN_DEBUG "%s: dropped TX filtered frame, " 497d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg "queue_len=%d PS=%d @%lu\n", 498d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg wiphy_name(local->hw.wiphy), 499d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg skb_queue_len(&sta->tx_filtered), 50007346f81e87d6e4cca7ae9adfa711d0c61c87b56Johannes Berg !!test_sta_flags(sta, WLAN_STA_PS), jiffies); 501f4ea83dd743d3e1bec8fdf954ac911c6b12ae87aJohannes Berg#endif 502d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg dev_kfree_skb(skb); 503d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg} 504d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 505e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Bergvoid ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 506f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 507f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct sk_buff *skb2; 508f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; 509f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 510e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 511f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc u16 frag, type; 512429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky __le16 fc; 5134b7679a561e552eeda1e3567119bef2bca99b66eJohannes Berg struct ieee80211_supported_band *sband; 514b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg struct ieee80211_tx_status_rtap_hdr *rthdr; 515b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg struct ieee80211_sub_if_data *sdata; 5163d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu struct net_device *prev_dev = NULL; 517429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky struct sta_info *sta; 518e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg int retry_count = -1, i; 519e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg 520e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { 521e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg /* the HW cannot have attempted that rate */ 522e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (i >= hw->max_rates) { 523e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg info->status.rates[i].idx = -1; 524e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg info->status.rates[i].count = 0; 525e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg } 526e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg 527e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg retry_count += info->status.rates[i].count; 528e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg } 529e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (retry_count < 0) 530e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg retry_count = 0; 531f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 532d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg rcu_read_lock(); 533d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg 534e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg sband = local->hw.wiphy->bands[info->band]; 535e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg 53695dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg sta = sta_info_get(local, hdr->addr1); 53795dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg 53895dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg if (sta) { 539e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (!(info->flags & IEEE80211_TX_STAT_ACK) && 54095dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg test_sta_flags(sta, WLAN_STA_PS)) { 54195dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg /* 54295dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg * The STA is in power save mode, so assume 54395dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg * that this TX packet failed because of that. 54495dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg */ 54595dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg ieee80211_handle_filtered_frame(local, sta, skb); 54695dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg rcu_read_unlock(); 54795dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg return; 548f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 549f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 55095dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg fc = hdr->frame_control; 55195dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg 55295dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg if ((info->flags & IEEE80211_TX_STAT_AMPDU_NO_BACK) && 55395dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg (ieee80211_is_data_qos(fc))) { 55495dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg u16 tid, ssn; 55595dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg u8 *qc; 556429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky 557429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky qc = ieee80211_get_qos_ctl(hdr); 558429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky tid = qc[0] & 0xf; 559429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky ssn = ((le16_to_cpu(hdr->seq_ctrl) + 0x10) 560429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky & IEEE80211_SCTL_SEQ); 561f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greene ieee80211_send_bar(sta->sdata, hdr->addr1, 562429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky tid, ssn); 563429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky } 564429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky 56595dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg if (info->flags & IEEE80211_TX_STAT_TX_FILTERED) { 566e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg ieee80211_handle_filtered_frame(local, sta, skb); 567d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg rcu_read_unlock(); 568f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return; 56995dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg } else { 570e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (!(info->flags & IEEE80211_TX_STAT_ACK)) 57195dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg sta->tx_retry_failed++; 572e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg sta->tx_retry_count += retry_count; 573f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 57495dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg 5754b7679a561e552eeda1e3567119bef2bca99b66eJohannes Berg rate_control_tx_status(local, sband, sta, skb); 57695dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg } 577f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 578d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg rcu_read_unlock(); 579d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg 580f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_led_tx(local, 0); 581f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 582f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* SNMP counters 583f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * Fragments are passed to low-level drivers as separate skbs, so these 584f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * are actually fragments, not frames. Update frame counters only for 585f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * the first fragment of the frame. */ 586f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 587f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc frag = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG; 588f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc type = le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_FTYPE; 589f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 590e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg if (info->flags & IEEE80211_TX_STAT_ACK) { 591f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (frag == 0) { 592f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11TransmittedFrameCount++; 593f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (is_multicast_ether_addr(hdr->addr1)) 594f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11MulticastTransmittedFrameCount++; 595e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (retry_count > 0) 596f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11RetryCount++; 597e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (retry_count > 1) 598f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11MultipleRetryCount++; 599f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 600f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 601f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* This counter shall be incremented for an acknowledged MPDU 602f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * with an individual address in the address 1 field or an MPDU 603f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * with a multicast address in the address 1 field of type Data 604f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * or Management. */ 605f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (!is_multicast_ether_addr(hdr->addr1) || 606f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc type == IEEE80211_FTYPE_DATA || 607f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc type == IEEE80211_FTYPE_MGMT) 608f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11TransmittedFragmentCount++; 609f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } else { 610f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (frag == 0) 611f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11FailedCount++; 612f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 613f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 614b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg /* this was a transmitted frame, but now we want to reuse it */ 615b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg skb_orphan(skb); 616b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 6173d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu /* 6183d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu * This is a bit racy but we can avoid a lot of work 6193d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu * with this test... 6203d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu */ 6213d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (!local->monitors && !local->cooked_mntrs) { 622f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb(skb); 623f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return; 624f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 625f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 626b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg /* send frame to monitor interfaces now */ 627f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 628b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg if (skb_headroom(skb) < sizeof(*rthdr)) { 629b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg printk(KERN_ERR "ieee80211_tx_status: headroom too small\n"); 630f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb(skb); 631f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return; 632f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 633f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 634988c0f723d0b1abb399e6e71d8bf3f8bf1949a70Johannes Berg rthdr = (struct ieee80211_tx_status_rtap_hdr *) 635b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg skb_push(skb, sizeof(*rthdr)); 636b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 637b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg memset(rthdr, 0, sizeof(*rthdr)); 638b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr)); 639b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->hdr.it_present = 640b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) | 641e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg (1 << IEEE80211_RADIOTAP_DATA_RETRIES) | 642e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg (1 << IEEE80211_RADIOTAP_RATE)); 643b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 644e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg if (!(info->flags & IEEE80211_TX_STAT_ACK) && 645b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg !is_multicast_ether_addr(hdr->addr1)) 646b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL); 647b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 648e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg /* 649e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg * XXX: Once radiotap gets the bitmap reset thing the vendor 650e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg * extensions proposal contains, we can actually report 651e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg * the whole set of tries we did. 652e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg */ 653e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if ((info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || 654e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg (info->status.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) 655b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS); 656e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg else if (info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) 657b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS); 658e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (info->status.rates[0].idx >= 0 && 659e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg !(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) 660e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg rthdr->rate = sband->bitrates[ 661e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg info->status.rates[0].idx].bitrate / 5; 662b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 663e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg /* for now report the total retry_count */ 664e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg rthdr->data_retries = retry_count; 665b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 6663d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu /* XXX: is this sufficient for BPF? */ 6673d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb_set_mac_header(skb, 0); 6683d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->ip_summed = CHECKSUM_UNNECESSARY; 6693d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->pkt_type = PACKET_OTHERHOST; 6703d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->protocol = htons(ETH_P_802_2); 6713d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu memset(skb->cb, 0, sizeof(skb->cb)); 6723d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu 67379010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg rcu_read_lock(); 67479010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 67505c914fe330fa8e1cc67870dc0d3809dfd96c107Johannes Berg if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 676b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg if (!netif_running(sdata->dev)) 677b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg continue; 6783d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu 6793d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (prev_dev) { 68079010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg skb2 = skb_clone(skb, GFP_ATOMIC); 6813d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (skb2) { 6823d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb2->dev = prev_dev; 6833d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu netif_rx(skb2); 6843d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu } 6853d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu } 6863d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu 6873d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu prev_dev = sdata->dev; 688b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg } 689b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg } 6903d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (prev_dev) { 6913d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->dev = prev_dev; 6923d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu netif_rx(skb); 6933d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb = NULL; 6943d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu } 69579010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg rcu_read_unlock(); 6963d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu dev_kfree_skb(skb); 697f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 698f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_tx_status); 699f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 700f2753ddbadb0873a98421415882318251bbd9eaaJohannes Bergstatic void ieee80211_restart_work(struct work_struct *work) 701f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg{ 702f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg struct ieee80211_local *local = 703f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg container_of(work, struct ieee80211_local, restart_work); 704f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 705f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg rtnl_lock(); 706f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg ieee80211_reconfig(local); 707f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg rtnl_unlock(); 708f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg} 709f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 710f2753ddbadb0873a98421415882318251bbd9eaaJohannes Bergvoid ieee80211_restart_hw(struct ieee80211_hw *hw) 711f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg{ 712f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 713f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 714f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg /* use this reason, __ieee80211_resume will unblock it */ 715f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg ieee80211_stop_queues_by_reason(hw, 716f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg IEEE80211_QUEUE_STOP_REASON_SUSPEND); 717f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 718f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg schedule_work(&local->restart_work); 719f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg} 720f2753ddbadb0873a98421415882318251bbd9eaaJohannes BergEXPORT_SYMBOL(ieee80211_restart_hw); 721f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 722f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstruct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, 723f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc const struct ieee80211_ops *ops) 724f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 725f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local; 72696f5e66e8a79810e2982cdcfa28e554f3d97da21Johannes Berg int priv_size, i; 727f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct wiphy *wiphy; 728f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 729f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* Ensure 32-byte alignment of our private data and hw private data. 730f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * We use the wiphy priv data for both our ieee80211_local and for 731f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * the driver's private data 732f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * 733f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * In memory it'll be like this: 734f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * 735f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 736f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * | struct wiphy | 737f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 738f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * | struct ieee80211_local | 739f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 740f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * | driver's private data | 741f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 742f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * 743f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc */ 744f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc priv_size = ((sizeof(struct ieee80211_local) + 745f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST) + 746f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc priv_data_len; 747f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 748f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy = wiphy_new(&mac80211_config_ops, priv_size); 749f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 750f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (!wiphy) 751f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return NULL; 752f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 753f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy->privid = mac80211_wiphy_privid; 75418a8365992a8041aa178ae9ad5f0d951d0457230Johannes Berg 75500d3f14cf9f12c21428121026a5e1d5f65926447Johannes Berg /* Yes, putting cfg80211_bss into ieee80211_bss is a hack */ 75600d3f14cf9f12c21428121026a5e1d5f65926447Johannes Berg wiphy->bss_priv_size = sizeof(struct ieee80211_bss) - 75700d3f14cf9f12c21428121026a5e1d5f65926447Johannes Berg sizeof(struct cfg80211_bss); 758f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 759f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local = wiphy_priv(wiphy); 760de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 761f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->hw.wiphy = wiphy; 762f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 763f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->hw.priv = (char *)local + 764f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ((sizeof(struct ieee80211_local) + 765f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST); 766f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 7674480f15ca62a595248d6d8e2b3e75052113cde59Johannes Berg BUG_ON(!ops->tx); 7684150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->start); 7694150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->stop); 7704480f15ca62a595248d6d8e2b3e75052113cde59Johannes Berg BUG_ON(!ops->config); 7714480f15ca62a595248d6d8e2b3e75052113cde59Johannes Berg BUG_ON(!ops->add_interface); 7724150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->remove_interface); 7734150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->configure_filter); 774f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->ops = ops; 775f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 776e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg /* set up some defaults */ 777e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg local->hw.queues = 1; 778e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg local->hw.max_rates = 1; 779f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 780f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD; 7819124b07740c51cbc6e358dd0c4abc6ee8ded084dJohannes Berg local->hw.conf.long_frame_max_tx_count = 4; 7829124b07740c51cbc6e358dd0c4abc6ee8ded084dJohannes Berg local->hw.conf.short_frame_max_tx_count = 7; 783e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg local->hw.conf.radio_enabled = true; 784f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 78579010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg INIT_LIST_HEAD(&local->interfaces); 786c771c9d8da1e8292ef8bf7fd4ce135dacc650130Johannes Berg mutex_init(&local->iflist_mtx); 787f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 788b16bd15c379410f2aa47837aa4a0de5712856ad5Johannes Berg spin_lock_init(&local->key_lock); 789b16bd15c379410f2aa47837aa4a0de5712856ad5Johannes Berg 790ce7c9111a97492d04c504f40736a669c235d664aKalle Valo spin_lock_init(&local->queue_stop_reason_lock); 791ce7c9111a97492d04c504f40736a669c235d664aKalle Valo 792c2b13452b283f9c4a5b02a6b53ed6416ebf4c03cJohannes Berg INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); 793f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 794f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg INIT_WORK(&local->restart_work, ieee80211_restart_work); 795f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 796520eb82076993b7f55ef9b80771d264272e5127bKalle Valo INIT_WORK(&local->dynamic_ps_enable_work, 797520eb82076993b7f55ef9b80771d264272e5127bKalle Valo ieee80211_dynamic_ps_enable_work); 798520eb82076993b7f55ef9b80771d264272e5127bKalle Valo INIT_WORK(&local->dynamic_ps_disable_work, 799520eb82076993b7f55ef9b80771d264272e5127bKalle Valo ieee80211_dynamic_ps_disable_work); 800520eb82076993b7f55ef9b80771d264272e5127bKalle Valo setup_timer(&local->dynamic_ps_timer, 801520eb82076993b7f55ef9b80771d264272e5127bKalle Valo ieee80211_dynamic_ps_timer, (unsigned long) local); 802520eb82076993b7f55ef9b80771d264272e5127bKalle Valo 803f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc sta_info_init(local); 804f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 8052a577d98712a284a612dd51d69db5cb989810dc2Johannes Berg for (i = 0; i < IEEE80211_MAX_QUEUES; i++) 8062a577d98712a284a612dd51d69db5cb989810dc2Johannes Berg skb_queue_head_init(&local->pending[i]); 807f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, 808f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (unsigned long)local); 809f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_disable(&local->tx_pending_tasklet); 810f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 811f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_init(&local->tasklet, 812f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_tasklet_handler, 813f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (unsigned long) local); 814f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_disable(&local->tasklet); 815f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 816f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_head_init(&local->skb_queue); 817f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_head_init(&local->skb_queue_unreliable); 818f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 819cd8ffc800ce18e558335c4946b2217864fc16045Johannes Berg spin_lock_init(&local->ampdu_lock); 820cd8ffc800ce18e558335c4946b2217864fc16045Johannes Berg 821f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return local_to_hw(local); 822f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 823f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_alloc_hw); 824f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 8257230645e329b4a9c566fefa9327eb8734c7d392cJohannes Bergstatic const struct net_device_ops ieee80211_master_ops = { 8267230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg .ndo_start_xmit = ieee80211_master_start_xmit, 8277230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg .ndo_open = ieee80211_master_open, 8287230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg .ndo_stop = ieee80211_master_stop, 8297230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg .ndo_set_multicast_list = ieee80211_master_set_multicast_list, 8307230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg .ndo_select_queue = ieee80211_select_queue, 8317230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg}; 8327230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg 8337230645e329b4a9c566fefa9327eb8734c7d392cJohannes Bergstatic void ieee80211_master_setup(struct net_device *mdev) 8347230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg{ 8357230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg mdev->type = ARPHRD_IEEE80211; 8367230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg mdev->netdev_ops = &ieee80211_master_ops; 8377230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg mdev->header_ops = &ieee80211_header_ops; 8387230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg mdev->tx_queue_len = 1000; 8397230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg mdev->addr_len = ETH_ALEN; 8407230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg} 8417230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg 842f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencint ieee80211_register_hw(struct ieee80211_hw *hw) 843f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 844f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 845f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc int result; 8468318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg enum ieee80211_band band; 84796d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg struct net_device *mdev; 848133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_master_priv *mpriv; 849de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg int channels, i, j, max_bitrates; 8505ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg bool supp_ht; 85125e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg static const u32 cipher_suites[] = { 85225e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_WEP40, 85325e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_WEP104, 85425e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_TKIP, 85525e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_CCMP, 85625e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg 85725e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg /* keep last -- depends on hw flags! */ 85825e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_AES_CMAC 85925e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg }; 8608318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg 8618318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg /* 8628318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg * generic code guarantees at least one band, 8638318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg * set this very early because much code assumes 8648318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg * that hw.conf.channel is assigned 8658318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg */ 8662a5193119269062608582418deba7af82844159aJohannes Berg channels = 0; 867de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg max_bitrates = 0; 8685ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg supp_ht = false; 8698318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 8708318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg struct ieee80211_supported_band *sband; 8718318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg 8728318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg sband = local->hw.wiphy->bands[band]; 873de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (!sband) 874de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg continue; 875de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (!local->oper_channel) { 8768318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg /* init channel we're on */ 8778318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg local->hw.conf.channel = 8788318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg local->oper_channel = 8798318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg local->scan_channel = &sband->channels[0]; 8808318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg } 881de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg channels += sband->n_channels; 882de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 883de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (max_bitrates < sband->n_bitrates) 884de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg max_bitrates = sband->n_bitrates; 8855ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg supp_ht = supp_ht || sband->ht_cap.ht_supported; 8868318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg } 887f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 8882a5193119269062608582418deba7af82844159aJohannes Berg local->int_scan_req.n_channels = channels; 8892a5193119269062608582418deba7af82844159aJohannes Berg local->int_scan_req.channels = kzalloc(sizeof(void *) * channels, GFP_KERNEL); 8902a5193119269062608582418deba7af82844159aJohannes Berg if (!local->int_scan_req.channels) 8912a5193119269062608582418deba7af82844159aJohannes Berg return -ENOMEM; 8922a5193119269062608582418deba7af82844159aJohannes Berg 893f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez /* if low-level driver supports AP, we also support VLAN */ 894f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) 895f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); 896f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez 897f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez /* mac80211 always supports monitor */ 898f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); 899f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez 90077965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) 90177965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 90277965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) 90377965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; 90477965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg 905de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg /* 906de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * Calculate scan IE length -- we need this to alloc 907de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * memory and to subtract from the driver limit. It 908de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * includes the (extended) supported rates and HT 909de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * information -- SSID is the driver's responsibility. 910de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg */ 911de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg local->scan_ies_len = 4 + max_bitrates; /* (ext) supp rates */ 9125ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg if (supp_ht) 9135ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); 914de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 915de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (!local->ops->hw_scan) { 916de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg /* For hw_scan, driver needs to set these up. */ 917de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg local->hw.wiphy->max_scan_ssids = 4; 918de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; 919de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg } 920de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 921de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg /* 922de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * If the driver supports any scan IEs, then assume the 923de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * limit includes the IEs mac80211 will add, otherwise 924de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * leave it at zero and let the driver sort it out; we 925de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * still pass our IEs to the driver but userspace will 926de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * not be allowed to in that case. 927de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg */ 928de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (local->hw.wiphy->max_scan_ie_len) 929de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; 930de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 93125e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg local->hw.wiphy->cipher_suites = cipher_suites; 93225e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 93325e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) 93425e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg local->hw.wiphy->n_cipher_suites--; 93525e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg 936f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = wiphy_register(local->hw.wiphy); 937f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) 9382a5193119269062608582418deba7af82844159aJohannes Berg goto fail_wiphy_register; 939f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 940e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg /* 941e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg * We use the number of queues for feature tests (QoS, HT) internally 942e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg * so restrict them appropriately. 943e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg */ 944e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg if (hw->queues > IEEE80211_MAX_QUEUES) 945e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg hw->queues = IEEE80211_MAX_QUEUES; 946e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg 947133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg mdev = alloc_netdev_mq(sizeof(struct ieee80211_master_priv), 9487230645e329b4a9c566fefa9327eb8734c7d392cJohannes Berg "wmaster%d", ieee80211_master_setup, 94996f5e66e8a79810e2982cdcfa28e554f3d97da21Johannes Berg hw->queues); 95096d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg if (!mdev) 95196d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg goto fail_mdev_alloc; 95296d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg 953133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg mpriv = netdev_priv(mdev); 954133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg mpriv->local = local; 95596d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg local->mdev = mdev; 95696d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg 9574ada424db196c78746fec255d493cacb1c9feddfLuis R. Rodriguez local->hw.workqueue = 95830d3ef41b4395d9bee5f481395eef2d3b8b6ee50Bob Copeland create_singlethread_workqueue(wiphy_name(local->hw.wiphy)); 959f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (!local->hw.workqueue) { 960f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = -ENOMEM; 961f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_workqueue; 962f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 963f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 964b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg /* 965b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * The hardware needs headroom for sending the frame, 966b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * and we need some headroom for passing the frame to monitor 967b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * interfaces, but never both at the same time. 968b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg */ 96933ccad35a21df51c0d23f3e3e88688524e7b51edJiri Benc local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, 97033ccad35a21df51c0d23f3e3e88688524e7b51edJiri Benc sizeof(struct ieee80211_tx_status_rtap_hdr)); 971b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 972e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc debugfs_hw_add(local); 973e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc 974dc0ae30c31ee6ef83992bb692f37dfbba08a2ef6Tomas Winkler if (local->hw.conf.beacon_int < 10) 975dc0ae30c31ee6ef83992bb692f37dfbba08a2ef6Tomas Winkler local->hw.conf.beacon_int = 100; 976f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 977ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler if (local->hw.max_listen_interval == 0) 978ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler local->hw.max_listen_interval = 1; 979ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler 980ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler local->hw.conf.listen_interval = local->hw.max_listen_interval; 981ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler 982f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = sta_info_start(local); 983f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) 984f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_sta_info; 985f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 986f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_lock(); 987f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = dev_alloc_name(local->mdev, local->mdev->name); 988f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) 989f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_dev; 990f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 991f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc memcpy(local->mdev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN); 992f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc SET_NETDEV_DEV(local->mdev, wiphy_dev(local->hw.wiphy)); 993076ae609d20901b5fd9bc19fc4c245624c423970Johannes Berg local->mdev->features |= NETIF_F_NETNS_LOCAL; 994f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 995f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = register_netdevice(local->mdev); 996f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) 997f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_dev; 998f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 999830f903866a1611e9ce53f3e35202302bb938946Johannes Berg result = ieee80211_init_rate_ctrl_alg(local, 1000830f903866a1611e9ce53f3e35202302bb938946Johannes Berg hw->rate_control_algorithm); 1001f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) { 1002f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc printk(KERN_DEBUG "%s: Failed to initialize rate control " 1003dd1cd4c620c174ebbdf78dc01b924115a06de5d3Johannes Berg "algorithm\n", wiphy_name(local->hw.wiphy)); 1004f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_rate; 1005f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 1006f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1007f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = ieee80211_wep_init(local); 1008f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1009f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) { 1010023a04bebe7030c1e6d5347bd3f27a3e49a1f222Jeremy Fitzhardinge printk(KERN_DEBUG "%s: Failed to initialize wep: %d\n", 1011023a04bebe7030c1e6d5347bd3f27a3e49a1f222Jeremy Fitzhardinge wiphy_name(local->hw.wiphy), result); 1012f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_wep; 1013f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 1014f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 10158dffff216fcac4f79078478085e86d68db64922eJohannes Berg /* add one default STA interface if supported */ 10168dffff216fcac4f79078478085e86d68db64922eJohannes Berg if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) { 10178dffff216fcac4f79078478085e86d68db64922eJohannes Berg result = ieee80211_if_add(local, "wlan%d", NULL, 10188dffff216fcac4f79078478085e86d68db64922eJohannes Berg NL80211_IFTYPE_STATION, NULL); 10198dffff216fcac4f79078478085e86d68db64922eJohannes Berg if (result) 10208dffff216fcac4f79078478085e86d68db64922eJohannes Berg printk(KERN_WARNING "%s: Failed to add default virtual iface\n", 10218dffff216fcac4f79078478085e86d68db64922eJohannes Berg wiphy_name(local->hw.wiphy)); 10228dffff216fcac4f79078478085e86d68db64922eJohannes Berg } 1023f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1024f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_unlock(); 1025f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1026f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_led_init(local); 1027f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 10282a5193119269062608582418deba7af82844159aJohannes Berg /* alloc internal scan request */ 10292a5193119269062608582418deba7af82844159aJohannes Berg i = 0; 10302a5193119269062608582418deba7af82844159aJohannes Berg local->int_scan_req.ssids = &local->scan_ssid; 10312a5193119269062608582418deba7af82844159aJohannes Berg local->int_scan_req.n_ssids = 1; 10322a5193119269062608582418deba7af82844159aJohannes Berg for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 10332a5193119269062608582418deba7af82844159aJohannes Berg if (!hw->wiphy->bands[band]) 10342a5193119269062608582418deba7af82844159aJohannes Berg continue; 10352a5193119269062608582418deba7af82844159aJohannes Berg for (j = 0; j < hw->wiphy->bands[band]->n_channels; j++) { 10362a5193119269062608582418deba7af82844159aJohannes Berg local->int_scan_req.channels[i] = 10372a5193119269062608582418deba7af82844159aJohannes Berg &hw->wiphy->bands[band]->channels[j]; 10382a5193119269062608582418deba7af82844159aJohannes Berg i++; 10392a5193119269062608582418deba7af82844159aJohannes Berg } 10402a5193119269062608582418deba7af82844159aJohannes Berg } 10412a5193119269062608582418deba7af82844159aJohannes Berg 104210f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg local->network_latency_notifier.notifier_call = 104310f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg ieee80211_max_network_latency; 104410f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY, 104510f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg &local->network_latency_notifier); 104610f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg 104710f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg if (result) { 104810f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg rtnl_lock(); 104910f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg goto fail_pm_qos; 105010f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg } 105110f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg 1052f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return 0; 1053f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 105410f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_pm_qos: 105510f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg ieee80211_led_exit(local); 105610f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg ieee80211_remove_interfaces(local); 105710f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_wep: 1058f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rate_control_deinitialize(local); 105910f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_rate: 1060f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc unregister_netdevice(local->mdev); 1061339a7c41c913035bf58579f6e47b4ba29da83795Pavel Emelyanov local->mdev = NULL; 106210f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_dev: 1063f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_unlock(); 1064f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc sta_info_stop(local); 106510f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_sta_info: 1066e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc debugfs_hw_del(local); 1067f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc destroy_workqueue(local->hw.workqueue); 106810f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_workqueue: 10693e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg if (local->mdev) 10703e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg free_netdev(local->mdev); 107110f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_mdev_alloc: 1072f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy_unregister(local->hw.wiphy); 107310f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_wiphy_register: 10742a5193119269062608582418deba7af82844159aJohannes Berg kfree(local->int_scan_req.channels); 1075f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return result; 1076f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 1077f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_register_hw); 1078f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1079f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencvoid ieee80211_unregister_hw(struct ieee80211_hw *hw) 1080f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 1081f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 1082f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1083f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_kill(&local->tx_pending_tasklet); 1084f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_kill(&local->tasklet); 1085f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 108610f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, 108710f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg &local->network_latency_notifier); 108810f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg 1089f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_lock(); 1090f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 109179010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg /* 109279010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg * At this point, interface list manipulations are fine 109379010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg * because the driver cannot be handing us frames any 109479010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg * more and the tasklet is killed. 109579010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg */ 10965b2812e925c8e976852867f8d760637c5926d817Johannes Berg 109775636525fbfa78fa33fd754c89785cfde750acd3Johannes Berg /* First, we remove all virtual interfaces. */ 109875636525fbfa78fa33fd754c89785cfde750acd3Johannes Berg ieee80211_remove_interfaces(local); 10995b2812e925c8e976852867f8d760637c5926d817Johannes Berg 11005b2812e925c8e976852867f8d760637c5926d817Johannes Berg /* then, finally, remove the master interface */ 11013e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg unregister_netdevice(local->mdev); 1102f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1103f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_unlock(); 1104f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1105f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_clear_tx_pending(local); 1106f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc sta_info_stop(local); 1107f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rate_control_deinitialize(local); 1108e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc debugfs_hw_del(local); 1109f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1110f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (skb_queue_len(&local->skb_queue) 1111f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc || skb_queue_len(&local->skb_queue_unreliable)) 1112f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc printk(KERN_WARNING "%s: skb_queue not empty\n", 1113dd1cd4c620c174ebbdf78dc01b924115a06de5d3Johannes Berg wiphy_name(local->hw.wiphy)); 1114f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_purge(&local->skb_queue); 1115f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_purge(&local->skb_queue_unreliable); 1116f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1117f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc destroy_workqueue(local->hw.workqueue); 1118f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy_unregister(local->hw.wiphy); 1119f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_wep_free(local); 1120f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_led_exit(local); 11213e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg free_netdev(local->mdev); 11222a5193119269062608582418deba7af82844159aJohannes Berg kfree(local->int_scan_req.channels); 1123f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 1124f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_unregister_hw); 1125f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1126f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencvoid ieee80211_free_hw(struct ieee80211_hw *hw) 1127f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 1128f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 1129f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1130c771c9d8da1e8292ef8bf7fd4ce135dacc650130Johannes Berg mutex_destroy(&local->iflist_mtx); 1131c771c9d8da1e8292ef8bf7fd4ce135dacc650130Johannes Berg 1132f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy_free(local->hw.wiphy); 1133f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 1134f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_free_hw); 1135f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1136f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstatic int __init ieee80211_init(void) 1137f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 1138f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct sk_buff *skb; 1139f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc int ret; 1140f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1141e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); 1142e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + 1143c6a1fa12d206882757264869f8e32d606b930e2aJohannes Berg IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); 1144f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1145cccf129f820e431d84690729254a32f1709328fbFelix Fietkau ret = rc80211_minstrel_init(); 1146cccf129f820e431d84690729254a32f1709328fbFelix Fietkau if (ret) 1147cccf129f820e431d84690729254a32f1709328fbFelix Fietkau return ret; 1148cccf129f820e431d84690729254a32f1709328fbFelix Fietkau 11494b475898ec9dc6e62cebcb8fc0b3495c986a4590Johannes Berg ret = rc80211_pid_init(); 1150ad01837593338f13508463fa11c8dbf8109a1e5dMattias Nissler if (ret) 115151cb6db0f5654f08a4a6bfa3888dc36a51c2df3eDavid S. Miller return ret; 1152f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1153e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc ieee80211_debugfs_netdev_init(); 1154e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc 1155f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return 0; 1156f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 1157f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1158f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstatic void __exit ieee80211_exit(void) 1159f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 11604b475898ec9dc6e62cebcb8fc0b3495c986a4590Johannes Berg rc80211_pid_exit(); 1161cccf129f820e431d84690729254a32f1709328fbFelix Fietkau rc80211_minstrel_exit(); 1162ac71c691e6a5ce991fe221d3bdb0c972f617aa37Johannes Berg 11633b96766f0e643f52ae19e134664df6730c737e87Johannes Berg /* 11643b96766f0e643f52ae19e134664df6730c737e87Johannes Berg * For key todo, it'll be empty by now but the work 11653b96766f0e643f52ae19e134664df6730c737e87Johannes Berg * might still be scheduled. 11663b96766f0e643f52ae19e134664df6730c737e87Johannes Berg */ 11673b96766f0e643f52ae19e134664df6730c737e87Johannes Berg flush_scheduled_work(); 11683b96766f0e643f52ae19e134664df6730c737e87Johannes Berg 1169f7a921443740d7dafc65b17aa32531730d358f50Luis Carlos Cobo if (mesh_allocated) 1170f7a921443740d7dafc65b17aa32531730d358f50Luis Carlos Cobo ieee80211s_stop(); 1171902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg 1172e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc ieee80211_debugfs_netdev_exit(); 1173f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 1174f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1175f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1176ca9938fea576ebbb8d8c4fbe8a5bcc937e49e1caJohannes Bergsubsys_initcall(ieee80211_init); 1177f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencmodule_exit(ieee80211_exit); 1178f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1179f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencMODULE_DESCRIPTION("IEEE 802.11 subsystem"); 1180f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencMODULE_LICENSE("GPL"); 1181