diff options
30 files changed, 4531 insertions, 328 deletions
diff --git a/drivers/net/skge.c b/drivers/net/skge.c index 4eda81d41b10..35dbf05c7f06 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -44,7 +44,7 @@ #include "skge.h" #define DRV_NAME "skge" -#define DRV_VERSION "1.4" +#define DRV_VERSION "1.5" #define PFX DRV_NAME " " #define DEFAULT_TX_RING_SIZE 128 @@ -357,7 +357,7 @@ static struct net_device_stats *skge_get_stats(struct net_device *dev) skge->net_stats.rx_bytes = data[1]; skge->net_stats.tx_packets = data[2] + data[4] + data[6]; skge->net_stats.rx_packets = data[3] + data[5] + data[7]; - skge->net_stats.multicast = data[5] + data[7]; + skge->net_stats.multicast = data[3] + data[5]; skge->net_stats.collisions = data[10]; skge->net_stats.tx_aborted_errors = data[12]; @@ -781,7 +781,7 @@ static void skge_rx_setup(struct skge_port *skge, struct skge_element *e, * Note: DMA address is not changed by chip. * MTU not changed while receiver active. */ -static void skge_rx_reuse(struct skge_element *e, unsigned int size) +static inline void skge_rx_reuse(struct skge_element *e, unsigned int size) { struct skge_rx_desc *rd = e->desc; @@ -829,7 +829,7 @@ static int skge_rx_fill(struct skge_port *skge) do { struct sk_buff *skb; - skb = dev_alloc_skb(skge->rx_buf_size + NET_IP_ALIGN); + skb = alloc_skb(skge->rx_buf_size + NET_IP_ALIGN, GFP_KERNEL); if (!skb) return -ENOMEM; @@ -847,8 +847,7 @@ static void skge_link_up(struct skge_port *skge) LED_BLK_OFF|LED_SYNC_OFF|LED_ON); netif_carrier_on(skge->netdev); - if (skge->tx_avail > MAX_SKB_FRAGS + 1) - netif_wake_queue(skge->netdev); + netif_wake_queue(skge->netdev); if (netif_msg_link(skge)) printk(KERN_INFO PFX @@ -2155,7 +2154,7 @@ static int skge_up(struct net_device *dev) printk(KERN_INFO PFX "%s: enabling interface\n", dev->name); if (dev->mtu > RX_BUF_SIZE) - skge->rx_buf_size = dev->mtu + ETH_HLEN + NET_IP_ALIGN; + skge->rx_buf_size = dev->mtu + ETH_HLEN; else skge->rx_buf_size = RX_BUF_SIZE; @@ -2190,8 +2189,6 @@ static int skge_up(struct net_device *dev) if (err) goto free_rx_ring; - skge->tx_avail = skge->tx_ring.count - 1; - /* Initialize MAC */ spin_lock_bh(&hw->phy_lock); if (hw->chip_id == CHIP_ID_GENESIS) @@ -2294,6 +2291,12 @@ static int skge_down(struct net_device *dev) return 0; } +static inline int skge_avail(const struct skge_ring *ring) +{ + return ((ring->to_clean > ring->to_use) ? 0 : ring->count) + + (ring->to_clean - ring->to_use) - 1; +} + static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev) { struct skge_port *skge = netdev_priv(dev); @@ -2314,7 +2317,7 @@ static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_LOCKED; } - if (unlikely(skge->tx_avail < skb_shinfo(skb)->nr_frags +1)) { + if (unlikely(skge_avail(&skge->tx_ring) < skb_shinfo(skb)->nr_frags + 1)) { if (!netif_queue_stopped(dev)) { netif_stop_queue(dev); @@ -2390,8 +2393,7 @@ static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev) dev->name, e - ring->start, skb->len); ring->to_use = e->next; - skge->tx_avail -= skb_shinfo(skb)->nr_frags + 1; - if (skge->tx_avail <= MAX_SKB_FRAGS + 1) { + if (skge_avail(&skge->tx_ring) <= MAX_SKB_FRAGS + 1) { pr_debug("%s: transmit queue full\n", dev->name); netif_stop_queue(dev); } @@ -2404,35 +2406,37 @@ static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_OK; } -static inline void skge_tx_free(struct skge_hw *hw, struct skge_element *e) +static void skge_tx_complete(struct skge_port *skge, struct skge_element *last) { - /* This ring element can be skb or fragment */ - if (e->skb) { - pci_unmap_single(hw->pdev, - pci_unmap_addr(e, mapaddr), - pci_unmap_len(e, maplen), - PCI_DMA_TODEVICE); - dev_kfree_skb(e->skb); + struct pci_dev *pdev = skge->hw->pdev; + struct skge_element *e; + + for (e = skge->tx_ring.to_clean; e != last; e = e->next) { + struct sk_buff *skb = e->skb; + int i; + e->skb = NULL; - } else { - pci_unmap_page(hw->pdev, - pci_unmap_addr(e, mapaddr), - pci_unmap_len(e, maplen), - PCI_DMA_TODEVICE); + pci_unmap_single(pdev, pci_unmap_addr(e, mapaddr), + skb_headlen(skb), PCI_DMA_TODEVICE); + + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { + e = e->next; + pci_unmap_page(pdev, pci_unmap_addr(e, mapaddr), + skb_shinfo(skb)->frags[i].size, + PCI_DMA_TODEVICE); + } + + dev_kfree_skb(skb); } + skge->tx_ring.to_clean = e; } static void skge_tx_clean(struct skge_port *skge) { - struct skge_ring *ring = &skge->tx_ring; - struct skge_element *e; spin_lock_bh(&skge->tx_lock); - for (e = ring->to_clean; e != ring->to_use; e = e->next) { - ++skge->tx_avail; - skge_tx_free(skge->hw, e); - } - ring->to_clean = e; + skge_tx_complete(skge, skge->tx_ring.to_use); + netif_wake_queue(skge->netdev); spin_unlock_bh(&skge->tx_lock); } @@ -2592,7 +2596,7 @@ static inline struct sk_buff *skge_rx_get(struct skge_port *skge, goto error; if (len < RX_COPY_THRESHOLD) { - skb = dev_alloc_skb(len + 2); + skb = alloc_skb(len + 2, GFP_ATOMIC); if (!skb) goto resubmit; @@ -2607,10 +2611,11 @@ static inline struct sk_buff *skge_rx_get(struct skge_port *skge, skge_rx_reuse(e, skge->rx_buf_size); } else { struct sk_buff *nskb; - nskb = dev_alloc_skb(skge->rx_buf_size + NET_IP_ALIGN); + nskb = alloc_skb(skge->rx_buf_size + NET_IP_ALIGN, GFP_ATOMIC); if (!nskb) goto resubmit; + skb_reserve(nskb, NET_IP_ALIGN); pci_unmap_single(skge->hw->pdev, pci_unmap_addr(e, mapaddr), pci_unmap_len(e, maplen), @@ -2661,30 +2666,29 @@ resubmit: static void skge_tx_done(struct skge_port *skge) { struct skge_ring *ring = &skge->tx_ring; - struct skge_element *e; + struct skge_element *e, *last; spin_lock(&skge->tx_lock); - for (e = ring->to_clean; prefetch(e->next), e != ring->to_use; e = e->next) { + last = ring->to_clean; + for (e = ring->to_clean; e != ring->to_use; e = e->next) { struct skge_tx_desc *td = e->desc; - u32 control; - rmb(); - control = td->control; - if (control & BMU_OWN) + if (td->control & BMU_OWN) break; - if (unlikely(netif_msg_tx_done(skge))) - printk(KERN_DEBUG PFX "%s: tx done slot %td status 0x%x\n", - skge->netdev->name, e - ring->start, td->status); - - skge_tx_free(skge->hw, e); - e->skb = NULL; - ++skge->tx_avail; + if (td->control & BMU_EOF) { + last = e->next; + if (unlikely(netif_msg_tx_done(skge))) + printk(KERN_DEBUG PFX "%s: tx done slot %td\n", + skge->netdev->name, e - ring->start); + } } - ring->to_clean = e; + + skge_tx_complete(skge, last); + skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F); - if (skge->tx_avail > MAX_SKB_FRAGS + 1) + if (skge_avail(&skge->tx_ring) > MAX_SKB_FRAGS + 1) netif_wake_queue(skge->netdev); spin_unlock(&skge->tx_lock); @@ -2718,8 +2722,7 @@ static int skge_poll(struct net_device *dev, int *budget) netif_receive_skb(skb); ++work_done; - } else - skge_rx_reuse(e, skge->rx_buf_size); + } } ring->to_clean = e; diff --git a/drivers/net/skge.h b/drivers/net/skge.h index 2efdacc290e5..1f1ce88c8186 100644 --- a/drivers/net/skge.h +++ b/drivers/net/skge.h @@ -2418,7 +2418,6 @@ struct skge_port { int port; spinlock_t tx_lock; - u32 tx_avail; struct skge_ring tx_ring; struct skge_ring rx_ring; diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 36db93811ac7..68f9c206a620 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -1175,7 +1175,7 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev) /* just drop the packet if non-linear expansion fails */ if (skb_header_cloned(skb) && pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) { - dev_kfree_skb_any(skb); + dev_kfree_skb(skb); goto out_unlock; } @@ -1324,7 +1324,7 @@ static void sky2_tx_complete(struct sky2_port *sky2, u16 done) PCI_DMA_TODEVICE); } - dev_kfree_skb_any(skb); + dev_kfree_skb(skb); } sky2->tx_cons = put; @@ -2484,7 +2484,7 @@ static const struct sky2_stat { { "single_collisions", GM_TXF_SNG_COL }, { "multi_collisions", GM_TXF_MUL_COL }, - { "rx_short", GM_RXE_SHT }, + { "rx_short", GM_RXF_SHT }, { "rx_runt", GM_RXE_FRAG }, { "rx_64_byte_packets", GM_RXF_64B }, { "rx_65_to_127_byte_packets", GM_RXF_127B }, @@ -2607,7 +2607,7 @@ static struct net_device_stats *sky2_get_stats(struct net_device *dev) sky2->net_stats.rx_bytes = data[1]; sky2->net_stats.tx_packets = data[2] + data[4] + data[6]; sky2->net_stats.rx_packets = data[3] + data[5] + data[7]; - sky2->net_stats.multicast = data[5] + data[7]; + sky2->net_stats.multicast = data[3] + data[5]; sky2->net_stats.collisions = data[10]; sky2->net_stats.tx_aborted_errors = data[12]; diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig index 5b0a19a5058d..6a1033ec06cf 100644 --- a/drivers/net/wireless/Kconfig +++ b/drivers/net/wireless/Kconfig @@ -25,6 +25,15 @@ config NET_RADIO the tools from <http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html>. +config NET_WIRELESS_RTNETLINK + bool "Wireless Extension API over RtNetlink" + ---help--- + Support the Wireless Extension API over the RtNetlink socket + in addition to the traditional ioctl interface (selected above). + + For now, few tools use this facility, but it might grow in the + future. The only downside is that it adds 4.5 kB to your kernel. + # Note : the cards are obsolete (can't buy them anymore), but the drivers # are not, as people are still using them... comment "Obsolete Wireless cards support (pre-802.11)" diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c index 864937a409e5..108d9fed8f07 100644 --- a/drivers/net/wireless/airo.c +++ b/drivers/net/wireless/airo.c @@ -770,6 +770,11 @@ typedef struct { } BSSListRid; typedef struct { + BSSListRid bss; + struct list_head list; +} BSSListElement; + +typedef struct { u8 rssipct; u8 rssidBm; } tdsRssiEntry; @@ -902,6 +907,7 @@ static char swversion[] = "2.1"; #define NUM_MODULES 2 #define MIC_MSGLEN_MAX 2400 #define EMMH32_MSGLEN_MAX MIC_MSGLEN_MAX +#define AIRO_DEF_MTU 2312 typedef struct { u32 size; // size @@ -1119,6 +1125,8 @@ static int decapsulate(struct airo_info *ai, MICBuffer *mic, etherHead *pPacket, static u8 airo_rssi_to_dbm (tdsRssiEntry *rssi_rid, u8 rssi); static u8 airo_dbm_to_pct (tdsRssiEntry *rssi_rid, u8 dbm); +static void airo_networks_free(struct airo_info *ai); + struct airo_info { struct net_device_stats stats; struct net_device *dev; @@ -1150,7 +1158,7 @@ struct airo_info { #define FLAG_COMMIT 13 #define FLAG_RESET 14 #define FLAG_FLASHING 15 -#define JOB_MASK 0x1ff0000 +#define JOB_MASK 0x2ff0000 #define JOB_DIE 16 #define JOB_XMIT 17 #define JOB_XMIT11 18 @@ -1160,6 +1168,7 @@ struct airo_info { #define JOB_EVENT 22 #define JOB_AUTOWEP 23 #define JOB_WSTATS 24 +#define JOB_SCAN_RESULTS 25 int (*bap_read)(struct airo_info*, u16 *pu16Dst, int bytelen, int whichbap); unsigned short *flash; @@ -1176,7 +1185,7 @@ struct airo_info { } xmit, xmit11; struct net_device *wifidev; struct iw_statistics wstats; // wireless stats - unsigned long scan_timestamp; /* Time started to scan */ + unsigned long scan_timeout; /* Time scan should be read */ struct iw_spy_data spy_data; struct iw_public_data wireless_data; /* MIC stuff */ @@ -1198,6 +1207,10 @@ struct airo_info { APListRid *APList; #define PCI_SHARED_LEN 2*MPI_MAX_FIDS*PKTSIZE+RIDSIZE char proc_name[IFNAMSIZ]; + + struct list_head network_list; + struct list_head network_free_list; + BSSListElement *networks; }; static inline int bap_read(struct airo_info *ai, u16 *pu16Dst, int bytelen, @@ -1216,6 +1229,22 @@ static int flashgchar(struct airo_info *ai,int matchbyte,int dwelltime); static int flashputbuf(struct airo_info *ai); static int flashrestart(struct airo_info *ai,struct net_device *dev); +#define airo_print(type, name, fmt, args...) \ + { printk(type "airo(%s): " fmt "\n", name, ##args); } + +#define airo_print_info(name, fmt, args...) \ + airo_print(KERN_INFO, name, fmt, ##args) + +#define airo_print_dbg(name, fmt, args...) \ + airo_print(KERN_DEBUG, name, fmt, ##args) + +#define airo_print_warn(name, fmt, args...) \ + airo_print(KERN_WARNING, name, fmt, ##args) + +#define airo_print_err(name, fmt, args...) \ + airo_print(KERN_ERR, name, fmt, ##args) + + /*********************************************************************** * MIC ROUTINES * *********************************************************************** @@ -1294,7 +1323,7 @@ static int micsetup(struct airo_info *ai) { ai->tfm = crypto_alloc_tfm("aes", CRYPTO_TFM_REQ_MAY_SLEEP); if (ai->tfm == NULL) { - printk(KERN_ERR "airo: failed to load transform for AES\n"); + airo_print_err(ai->dev->name, "failed to load transform for AES"); return ERROR; } @@ -1726,11 +1755,11 @@ static int writeWepKeyRid(struct airo_info*ai, WepKeyRid *pwkr, int perm, int lo wkr.kindex = cpu_to_le16(wkr.kindex); wkr.klen = cpu_to_le16(wkr.klen); rc = PC4500_writerid(ai, RID_WEP_TEMP, &wkr, sizeof(wkr), lock); - if (rc!=SUCCESS) printk(KERN_ERR "airo: WEP_TEMP set %x\n", rc); + if (rc!=SUCCESS) airo_print_err(ai->dev->name, "WEP_TEMP set %x", rc); if (perm) { rc = PC4500_writerid(ai, RID_WEP_PERM, &wkr, sizeof(wkr), lock); if (rc!=SUCCESS) { - printk(KERN_ERR "airo: WEP_PERM set %x\n", rc); + airo_print_err(ai->dev->name, "WEP_PERM set %x", rc); } } return rc; @@ -1909,7 +1938,7 @@ static int mpi_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct airo_info *ai = dev->priv; if (!skb) { - printk(KERN_ERR "airo: %s: skb==NULL\n",__FUNCTION__); + airo_print_err(dev->name, "%s: skb == NULL!",__FUNCTION__); return 0; } npacks = skb_queue_len (&ai->txq); @@ -1955,8 +1984,8 @@ static int mpi_send_packet (struct net_device *dev) /* get a packet to send */ if ((skb = skb_dequeue(&ai->txq)) == 0) { - printk (KERN_ERR - "airo: %s: Dequeue'd zero in send_packet()\n", + airo_print_err(dev->name, + "%s: Dequeue'd zero in send_packet()", __FUNCTION__); return 0; } @@ -2108,7 +2137,7 @@ static int airo_start_xmit(struct sk_buff *skb, struct net_device *dev) { u32 *fids = priv->fids; if ( skb == NULL ) { - printk( KERN_ERR "airo: skb == NULL!!!\n" ); + airo_print_err(dev->name, "%s: skb == NULL!", __FUNCTION__); return 0; } @@ -2179,7 +2208,7 @@ static int airo_start_xmit11(struct sk_buff *skb, struct net_device *dev) { } if ( skb == NULL ) { - printk( KERN_ERR "airo: skb == NULL!!!\n" ); + airo_print_err(dev->name, "%s: skb == NULL!", __FUNCTION__); return 0; } @@ -2364,6 +2393,8 @@ void stop_airo_card( struct net_device *dev, int freeres ) dev_kfree_skb(skb); } + airo_networks_free (ai); + kfree(ai->flash); kfree(ai->rssi); kfree(ai->APList); @@ -2434,7 +2465,7 @@ static int mpi_init_descriptors (struct airo_info *ai) cmd.parm2 = MPI_MAX_FIDS; rc=issuecommand(ai, &cmd, &rsp); if (rc != SUCCESS) { - printk(KERN_ERR "airo: Couldn't allocate RX FID\n"); + airo_print_err(ai->dev->name, "Couldn't allocate RX FID"); return rc; } @@ -2462,7 +2493,7 @@ static int mpi_init_descriptors (struct airo_info *ai) rc=issuecommand(ai, &cmd, &rsp); if (rc != SUCCESS) { - printk(KERN_ERR "airo: Couldn't allocate TX FID\n"); + airo_print_err(ai->dev->name, "Couldn't allocate TX FID"); return rc; } @@ -2476,7 +2507,7 @@ static int mpi_init_descriptors (struct airo_info *ai) cmd.parm2 = 1; /* Magic number... */ rc=issuecommand(ai, &cmd, &rsp); if (rc != SUCCESS) { - printk(KERN_ERR "airo: Couldn't allocate RID\n"); + airo_print_err(ai->dev->name, "Couldn't allocate RID"); return rc; } @@ -2508,25 +2539,25 @@ static int mpi_map_card(struct airo_info *ai, struct pci_dev *pci, aux_len = AUXMEMSIZE; if (!request_mem_region(mem_start, mem_len, name)) { - printk(KERN_ERR "airo: Couldn't get region %x[%x] for %s\n", + airo_print_err(ai->dev->name, "Couldn't get region %x[%x] for %s", (int)mem_start, (int)mem_len, name); goto out; } if (!request_mem_region(aux_start, aux_len, name)) { - printk(KERN_ERR "airo: Couldn't get region %x[%x] for %s\n", + airo_print_err(ai->dev->name, "Couldn't get region %x[%x] for %s", (int)aux_start, (int)aux_len, name); goto free_region1; } ai->pcimem = ioremap(mem_start, mem_len); if (!ai->pcimem) { - printk(KERN_ERR "airo: Couldn't map region %x[%x] for %s\n", + airo_print_err(ai->dev->name, "Couldn't map region %x[%x] for %s", (int)mem_start, (int)mem_len, name); goto free_region2; } ai->pciaux = ioremap(aux_start, aux_len); if (!ai->pciaux) { - printk(KERN_ERR "airo: Couldn't map region %x[%x] for %s\n", + airo_print_err(ai->dev->name, "Couldn't map region %x[%x] for %s", (int)aux_start, (int)aux_len, name); goto free_memmap; } @@ -2534,7 +2565,7 @@ static int mpi_map_card(struct airo_info *ai, struct pci_dev *pci, /* Reserve PKTSIZE for each fid and 2K for the Rids */ ai->shared = pci_alloc_consistent(pci, PCI_SHARED_LEN, &ai->shared_dma); if (!ai->shared) { - printk(KERN_ERR "airo: Couldn't alloc_consistent %d\n", + airo_print_err(ai->dev->name, "Couldn't alloc_consistent %d", PCI_SHARED_LEN); goto free_auxmap; } @@ -2626,7 +2657,7 @@ static void wifi_setup(struct net_device *dev) dev->type = ARPHRD_IEEE80211; dev->hard_header_len = ETH_HLEN; - dev->mtu = 2312; + dev->mtu = AIRO_DEF_MTU; dev->addr_len = ETH_ALEN; dev->tx_queue_len = 100; @@ -2670,6 +2701,42 @@ static int reset_card( struct net_device *dev , int lock) { return 0; } +#define MAX_NETWORK_COUNT 64 +static int airo_networks_allocate(struct airo_info *ai) +{ + if (ai->networks) + return 0; + + ai->networks = + kzalloc(MAX_NETWORK_COUNT * sizeof(BSSListElement), + GFP_KERNEL); + if (!ai->networks) { + airo_print_warn(ai->dev->name, "Out of memory allocating beacons"); + return -ENOMEM; + } + + return 0; +} + +static void airo_networks_free(struct airo_info *ai) +{ + if (!ai->networks) + return; + kfree(ai->networks); + ai->networks = NULL; +} + +static void airo_networks_initialize(struct airo_info *ai) +{ + int i; + + INIT_LIST_HEAD(&ai->network_free_list); + INIT_LIST_HEAD(&ai->network_list); + for (i = 0; i < MAX_NETWORK_COUNT; i++) + list_add_tail(&ai->networks[i].list, + &ai->network_free_list); +} + static struct net_device *_init_airo_card( unsigned short irq, int port, int is_pcmcia, struct pci_dev *pci, struct device *dmdev ) @@ -2681,22 +2748,22 @@ static struct net_device *_init_airo_card( unsigned short irq, int port, /* Create the network device object. */ dev = alloc_etherdev(sizeof(*ai)); if (!dev) { - printk(KERN_ERR "airo: Couldn't alloc_etherdev\n"); + airo_print_err("", "Couldn't alloc_etherdev"); return NULL; } if (dev_alloc_name(dev, dev->name) < 0) { - printk(KERN_ERR "airo: Couldn't get name!\n"); + airo_print_err("", "Couldn't get name!"); goto err_out_free; } ai = dev->priv; ai->wifidev = NULL; ai->flags = 0; + ai->dev = dev; if (pci && (pci->device == 0x5000 || pci->device == 0xa504)) { - printk(KERN_DEBUG "airo: Found an MPI350 card\n"); + airo_print_dbg(dev->name, "Found an MPI350 card"); set_bit(FLAG_MPI, &ai->flags); } - ai->dev = dev; spin_lock_init(&ai->aux_lock); sema_init(&ai->sem, 1); ai->config.len = 0; @@ -2711,6 +2778,10 @@ static struct net_device *_init_airo_card( unsigned short irq, int port, if (rc) goto err_out_thr; + if (airo_networks_allocate (ai)) + goto err_out_unlink; + airo_networks_initialize (ai); + /* The Airo-specific entries in the device structure. */ if (test_bit(FLAG_MPI,&ai->flags)) { skb_queue_head_init (&ai->txq); @@ -2732,33 +2803,33 @@ static struct net_device *_init_airo_card( unsigned short irq, int port, SET_NETDEV_DEV(dev, dmdev); - reset_card (dev, 1); msleep(400); rc = request_irq( dev->irq, airo_interrupt, SA_SHIRQ, dev->name, dev ); if (rc) { - printk(KERN_ERR "airo: register interrupt %d failed, rc %d\n", irq, rc ); + airo_print_err(dev->name, "register interrupt %d failed, rc %d", + irq, rc); goto err_out_unlink; } if (!is_pcmcia) { if (!request_region( dev->base_addr, 64, dev->name )) { rc = -EBUSY; - printk(KERN_ERR "airo: Couldn't request region\n"); + airo_print_err(dev->name, "Couldn't request region"); goto err_out_irq; } } if (test_bit(FLAG_MPI,&ai->flags)) { if (mpi_map_card(ai, pci, dev->name)) { - printk(KERN_ERR "airo: Could not map memory\n"); + airo_print_err(dev->name, "Could not map memory"); goto err_out_res; } } if (probe) { if ( setup_card( ai, dev->dev_addr, 1 ) != SUCCESS ) { - printk( KERN_ERR "airo: MAC could not be enabled\n" ); + airo_print_err(dev->name, "MAC could not be enabled" ); rc = -EIO; goto err_out_map; } @@ -2769,21 +2840,20 @@ static struct net_device *_init_airo_card( unsigned short irq, int port, rc = register_netdev(dev); if (rc) { - printk(KERN_ERR "airo: Couldn't register_netdev\n"); + airo_print_err(dev->name, "Couldn't register_netdev"); goto err_out_map; } ai->wifidev = init_wifidev(ai, dev); set_bit(FLAG_REGISTERED,&ai->flags); - printk( KERN_INFO "airo: MAC enabled %s %x:%x:%x:%x:%x:%x\n", - dev->name, + airo_print_info(dev->name, "MAC enabled %x:%x:%x:%x:%x:%x", dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5] ); /* Allocate the transmit buffers */ if (probe && !test_bit(FLAG_MPI,&ai->flags)) for( i = 0; i < MAX_FIDS; i++ ) - ai->fids[i] = transmit_allocate(ai,2312,i>=MAX_FIDS/2); + ai->fids[i] = transmit_allocate(ai,AIRO_DEF_MTU,i>=MAX_FIDS/2); setup_proc_entry( dev, dev->priv ); /* XXX check for failure */ netif_start_queue(dev); @@ -2840,16 +2910,16 @@ int reset_airo_card( struct net_device *dev ) return -1; if ( setup_card(ai, dev->dev_addr, 1 ) != SUCCESS ) { - printk( KERN_ERR "airo: MAC could not be enabled\n" ); + airo_print_err(dev->name, "MAC could not be enabled"); return -1; } - printk( KERN_INFO "airo: MAC enabled %s %x:%x:%x:%x:%x:%x\n", dev->name, + airo_print_info(dev->name, "MAC enabled %x:%x:%x:%x:%x:%x", dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]); /* Allocate the transmit buffers if needed */ if (!test_bit(FLAG_MPI,&ai->flags)) for( i = 0; i < MAX_FIDS; i++ ) - ai->fids[i] = transmit_allocate (ai,2312,i>=MAX_FIDS/2); + ai->fids[i] = transmit_allocate (ai,AIRO_DEF_MTU,i>=MAX_FIDS/2); enable_interrupts( ai ); netif_wake_queue(dev); @@ -2875,6 +2945,65 @@ static void airo_send_event(struct net_device *dev) { wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); } +static void airo_process_scan_results (struct airo_info *ai) { + union iwreq_data wrqu; + BSSListRid BSSList; + int rc; + BSSListElement * loop_net; + BSSListElement * tmp_net; + + /* Blow away current list of scan results */ + list_for_each_entry_safe (loop_net, tmp_net, &ai->network_list, list) { + list_move_tail (&loop_net->list, &ai->network_free_list); + /* Don't blow away ->list, just BSS data */ + memset (loop_net, 0, sizeof (loop_net->bss)); + } + + /* Try to read the first entry of the scan result */ + rc = PC4500_readrid(ai, RID_BSSLISTFIRST, &BSSList, sizeof(BSSList), 0); + if((rc) || (BSSList.index == 0xffff)) { + /* No scan results */ + goto out; + } + + /* Read and parse all entries */ + tmp_net = NULL; + while((!rc) && (BSSList.index != 0xffff)) { + /* Grab a network off the free list */ + if (!list_empty(&ai->network_free_list)) { + tmp_net = list_entry(ai->network_free_list.next, + BSSListElement, list); + list_del(ai->network_free_list.next); + } + + if (tmp_net != NULL) { + memcpy(tmp_net, &BSSList, sizeof(tmp_net->bss)); + list_add_tail(&tmp_net->list, &ai->network_list); + tmp_net = NULL; + } + + /* Read next entry */ + rc = PC4500_readrid(ai, RID_BSSLISTNEXT, + &BSSList, sizeof(BSSList), 0); + } + +out: + ai->scan_timeout = 0; + clear_bit(JOB_SCAN_RESULTS, &ai->flags); + up(&ai->sem); + + /* Send an empty event to user space. + * We don't send the received data on + * the event because it would require + * us to do complex transcoding, and + * we want to minimise the work done in + * the irq handler. Use a request to + * extract the data - Jean II */ + wrqu.data.length = 0; + wrqu.data.flags = 0; + wireless_send_event(ai->dev, SIOCGIWSCAN, &wrqu, NULL); +} + static int airo_thread(void *data) { struct net_device *dev = data; struct airo_info *ai = dev->priv; @@ -2904,13 +3033,26 @@ static int airo_thread(void *data) { set_current_state(TASK_INTERRUPTIBLE); if (ai->flags & JOB_MASK) break; - if (ai->expires) { - if (time_after_eq(jiffies,ai->expires)){ + if (ai->expires || ai->scan_timeout) { + if (ai->scan_timeout && + time_after_eq(jiffies,ai->scan_timeout)){ + set_bit(JOB_SCAN_RESULTS,&ai->flags); + break; + } else if (ai->expires && + time_after_eq(jiffies,ai->expires)){ set_bit(JOB_AUTOWEP,&ai->flags); break; } if (!signal_pending(current)) { - schedule_timeout(ai->expires - jiffies); + unsigned long wake_at; + if (!ai->expires || !ai->scan_timeout) { + wake_at = max(ai->expires, + ai->scan_timeout); + } else { + wake_at = min(ai->expires, + ai->scan_timeout); + } + schedule_timeout(wake_at - jiffies); continue; } } else if (!signal_pending(current)) { @@ -2953,6 +3095,10 @@ static int airo_thread(void *data) { airo_send_event(dev); else if (test_bit(JOB_AUTOWEP, &ai->flags)) timer_func(dev); + else if (test_bit(JOB_SCAN_RESULTS, &ai->flags)) + airo_process_scan_results(ai); + else /* Shouldn't get here, but we make sure to unlock */ + up(&ai->sem); } complete_and_exit (&ai->thr_exited, 0); } @@ -3047,19 +3193,15 @@ static irqreturn_t airo_interrupt ( int irq, void* dev_id, struct pt_regs *regs) * and reassociations as valid status * Jean II */ if(newStatus == ASSOCIATED) { - if (apriv->scan_timestamp) { - /* Send an empty event to user space. - * We don't send the received data on - * the event because it would require - * us to do complex transcoding, and - * we want to minimise the work done in - * the irq handler. Use a request to - * extract the data - Jean II */ - wrqu.data.length = 0; - wrqu.data.flags = 0; - wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL); - apriv->scan_timestamp = 0; +#if 0 + /* FIXME: Grabbing scan results here + * seems to be too early??? Just wait for + * timeout instead. */ + if (apriv->scan_timeout > 0) { + set_bit(JOB_SCAN_RESULTS, &apriv->flags); + wake_up_interruptible(&apriv->thr_wait); } +#endif if (down_trylock(&apriv->sem) != 0) { set_bit(JOB_EVENT, &apriv->flags); wake_up_interruptible(&apriv->thr_wait); @@ -3117,8 +3259,8 @@ static irqreturn_t airo_interrupt ( int irq, void* dev_id, struct pt_regs *regs) } len = le16_to_cpu(hdr.len); - if (len > 2312) { - printk( KERN_ERR "airo: Bad size %d\n", len ); + if (len > AIRO_DEF_MTU) { + airo_print_err(apriv->dev->name, "Bad size %d", len); goto badrx; } if (len == 0) @@ -3161,10 +3303,12 @@ static irqreturn_t airo_interrupt ( int irq, void* dev_id, struct pt_regs *regs) bap_read (apriv, &gap, sizeof(gap), BAP0); gap = le16_to_cpu(gap); if (gap) { - if (gap <= 8) + if (gap <= 8) { bap_read (apriv, tmpbuf, gap, BAP0); - else - printk(KERN_ERR "airo: gaplen too big. Problems will follow...\n"); + } else { + airo_print_err(apriv->dev->name, "gaplen too " + "big. Problems will follow..."); + } } bap_read (apriv, buffer + hdrlen/2, len, BAP0); } else { @@ -3281,12 +3425,13 @@ exitrx: } } else { OUT4500( apriv, EVACK, status & (EV_TX | EV_TXCPY | EV_TXEXC)); - printk( KERN_ERR "airo: Unallocated FID was used to xmit\n" ); + airo_print_err(apriv->dev->name, "Unallocated FID was " + "used to xmit" ); } } exittx: if ( status & ~STATUS_INTS & ~IGNORE_INTS ) - printk( KERN_WARNING "airo: Got weird status %x\n", + airo_print_warn(apriv->dev->name, "Got weird status %x", status & ~STATUS_INTS & ~IGNORE_INTS ); } @@ -3359,8 +3504,8 @@ static int enable_MAC( struct airo_info *ai, Resp *rsp, int lock ) { up(&ai->sem); if (rc) - printk(KERN_ERR "%s: Cannot enable MAC, err=%d\n", - __FUNCTION__,rc); + airo_print_err(ai->dev->name, "%s: Cannot enable MAC, err=%d", + __FUNCTION__, rc); return rc; } @@ -3489,8 +3634,8 @@ void mpi_receive_802_11 (struct airo_info *ai) if (ai->wifidev == NULL) hdr.len = 0; len = le16_to_cpu(hdr.len); - if (len > 2312) { - printk( KERN_ERR "airo: Bad size %d\n", len ); + if (len > AIRO_DEF_MTU) { + airo_print_err(ai->dev->name, "Bad size %d", len); goto badrx; } if (len == 0) @@ -3531,8 +3676,8 @@ void mpi_receive_802_11 (struct airo_info *ai) if (gap <= 8) ptr += gap; else - printk(KERN_ERR - "airo: gaplen too big. Problems will follow...\n"); + airo_print_err(ai->dev->name, + "gaplen too big. Problems will follow..."); } memcpy ((char *)buffer + hdrlen, ptr, len); ptr += len; @@ -3604,15 +3749,15 @@ static u16 setup_card(struct airo_info *ai, u8 *mac, int lock) if (issuecommand(ai, &cmd, &rsp) != SUCCESS) { if (lock) up(&ai->sem); - printk(KERN_ERR "airo: Error checking for AUX port\n"); + airo_print_err(ai->dev->name, "Error checking for AUX port"); return ERROR; } if (!aux_bap || rsp.status & 0xff00) { ai->bap_read = fast_bap_read; - printk(KERN_DEBUG "airo: Doing fast bap_reads\n"); + airo_print_dbg(ai->dev->name, "Doing fast bap_reads"); } else { ai->bap_read = aux_bap_read; - printk(KERN_DEBUG "airo: Doing AUX bap_reads\n"); + airo_print_dbg(ai->dev->name, "Doing AUX bap_reads"); } } if (lock) @@ -3643,7 +3788,8 @@ static u16 setup_card(struct airo_info *ai, u8 *mac, int lock) if (cap_rid.softCap & 8) ai->config.rmode |= RXMODE_NORMALIZED_RSSI; else - printk(KERN_WARNING "airo: unknown received signal level scale\n"); + airo_print_warn(ai->dev->name, "unknown received signal " + "level scale"); } ai->config.opmode = adhoc ? MODE_STA_IBSS : MODE_STA_ESS; ai->config.authType = AUTH_OPEN; @@ -3706,7 +3852,8 @@ static u16 setup_card(struct airo_info *ai, u8 *mac, int lock) status = enable_MAC(ai, &rsp, lock); if ( status != SUCCESS || (rsp.status & 0xFF00) != 0) { - printk( KERN_ERR "airo: Bad MAC enable reason = %x, rid = %x, offset = %d\n", rsp.rsp0, rsp.rsp1, rsp.rsp2 ); + airo_print_err(ai->dev->name, "Bad MAC enable reason = %x, rid = %x," + " offset = %d", rsp.rsp0, rsp.rsp1, rsp.rsp2 ); return ERROR; } @@ -3749,8 +3896,8 @@ static u16 issuecommand(struct airo_info *ai, Cmd *pCmd, Resp *pRsp) { } if ( max_tries == -1 ) { - printk( KERN_ERR - "airo: Max tries exceeded when issueing command\n" ); + airo_print_err(ai->dev->name, + "Max tries exceeded when issueing command"); if (IN4500(ai, COMMAND) & COMMAND_BUSY) OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY); return ERROR; @@ -3762,11 +3909,11 @@ static u16 issuecommand(struct airo_info *ai, Cmd *pCmd, Resp *pRsp) { pRsp->rsp1 = IN4500(ai, RESP1); pRsp->rsp2 = IN4500(ai, RESP2); if ((pRsp->status & 0xff00)!=0 && pCmd->cmd != CMD_SOFTRESET) { - printk (KERN_ERR "airo: cmd= %x\n", pCmd->cmd); - printk (KERN_ERR "airo: status= %x\n", pRsp->status); - printk (KERN_ERR "airo: Rsp0= %x\n", pRsp->rsp0); - printk (KERN_ERR "airo: Rsp1= %x\n", pRsp->rsp1); - printk (KERN_ERR "airo: Rsp2= %x\n", pRsp->rsp2); + airo_print_err(ai->dev->name, "cmd= %x\n", pCmd->cmd); + airo_print_err(ai->dev->name, "status= %x\n", pRsp->status); + airo_print_err(ai->dev->name, "Rsp0= %x\n", pRsp->rsp0); + airo_print_err(ai->dev->name, "Rsp1= %x\n", pRsp->rsp1); + airo_print_err(ai->dev->name, "Rsp2= %x\n", pRsp->rsp2); } // clear stuck command busy if necessary @@ -3799,15 +3946,15 @@ static int bap_setup(struct airo_info *ai, u16 rid, u16 offset, int whichbap ) } } else if ( status & BAP_ERR ) { /* invalid rid or offset */ - printk( KERN_ERR "airo: BAP error %x %d\n", + airo_print_err(ai->dev->name, "BAP error %x %d", status, whichbap ); return ERROR; } else if (status & BAP_DONE) { // success return SUCCESS; } if ( !(max_tries--) ) { - printk( KERN_ERR - "airo: BAP setup error too many retries\n" ); + airo_print_err(ai->dev->name, + "airo: BAP setup error too many retries\n"); return ERROR; } // -- PC4500 missed it, try again @@ -3962,8 +4109,8 @@ static int PC4500_readrid(struct airo_info *ai, u16 rid, void *pBuf, int len, in len = min(len, (int)le16_to_cpu(*(u16*)pBuf)) - 2; if ( len <= 2 ) { - printk( KERN_ERR - "airo: Rid %x has a length of %d which is too short\n", + airo_print_err(ai->dev->name, + "Rid %x has a length of %d which is too short", (int)rid, (int)len ); rc = ERROR; goto done; @@ -3996,8 +4143,8 @@ static int PC4500_writerid(struct airo_info *ai, u16 rid, Resp rsp; if (test_bit(FLAG_ENABLED, &ai->flags) && (RID_WEP_TEMP != rid)) - printk(KERN_ERR - "%s: MAC should be disabled (rid=%04x)\n", + airo_print_err(ai->dev->name, + "%s: MAC should be disabled (rid=%04x)", __FUNCTION__, rid); memset(&cmd, 0, sizeof(cmd)); memset(&rsp, 0, sizeof(rsp)); @@ -4013,7 +4160,7 @@ static int PC4500_writerid(struct airo_info *ai, u16 rid, &ai->config_desc.rid_desc, sizeof(Rid)); if (len < 4 || len > 2047) { - printk(KERN_ERR "%s: len=%d\n",__FUNCTION__,len); + airo_print_err(ai->dev->name, "%s: len=%d", __FUNCTION__, len); rc = -1; } else { memcpy((char *)ai->config_desc.virtual_host_addr, @@ -4021,10 +4168,10 @@ static int PC4500_writerid(struct airo_info *ai, u16 rid, rc = issuecommand(ai, &cmd, &rsp); if ((rc & 0xff00) != 0) { - printk(KERN_ERR "%s: Write rid Error %d\n", - __FUNCTION__,rc); - printk(KERN_ERR "%s: Cmd=%04x\n", - __FUNCTION__,cmd.cmd); + airo_print_err(ai->dev->name, "%s: Write rid Error %d", + __FUNCTION__, rc); + airo_print_err(ai->dev->name, "%s: Cmd=%04x", + __FUNCTION__, cmd.cmd); } if ((rsp.status & 0x7f00)) @@ -4123,7 +4270,7 @@ static int transmit_802_3_packet(struct airo_info *ai, int len, char *pPacket) len >>= 16; if (len <= ETH_ALEN * 2) { - printk( KERN_WARNING "Short packet %d\n", len ); + airo_print_warn(ai->dev->name, "Short packet %d", len); return ERROR; } len -= ETH_ALEN * 2; @@ -4187,7 +4334,7 @@ static int transmit_802_11_packet(struct airo_info *ai, int len, char *pPacket) } if (len < hdrlen) { - printk( KERN_WARNING "Short packet %d\n", len ); + airo_print_warn(ai->dev->name, "Short packet %d", len); return ERROR; } @@ -4584,15 +4731,14 @@ static int proc_stats_rid_open( struct inode *inode, i*4<stats.len; i++){ if (!statsLabels[i]) continue; if (j+strlen(statsLabels[i])+16>4096) { - printk(KERN_WARNING - "airo: Potentially disasterous buffer overflow averted!\n"); + airo_print_warn(apriv->dev->name, + "Potentially disasterous buffer overflow averted!"); break; } j+=sprintf(data->rbuffer+j, "%s: %u\n", statsLabels[i], vals[i]); } if (i*4>=stats.len){ - printk(KERN_WARNING - "airo: Got a short rid\n"); + airo_print_warn(apriv->dev->name, "Got a short rid"); } data->readlen = j; return 0; @@ -4754,7 +4900,7 @@ static void proc_config_on_close( struct inode *inode, struct file *file ) { line += 14; v = get_dec_u16(line, &i, 4); - v = (v<0) ? 0 : ((v>2312) ? 2312 : v); + v = (v<0) ? 0 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v); ai->config.rtsThres = (u16)v; set_bit (FLAG_COMMIT, &ai->flags); } else if ( !strncmp( line, "TXMSDULifetime: ", 16 ) ) { @@ -4788,7 +4934,7 @@ static void proc_config_on_close( struct inode *inode, struct file *file ) { line += 15; v = get_dec_u16(line, &i, 4); - v = (v<256) ? 256 : ((v>2312) ? 2312 : v); + v = (v<256) ? 256 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v); v = v & 0xfffe; /* Make sure its even */ ai->config.fragThresh = (u16)v; set_bit (FLAG_COMMIT, &ai->flags); @@ -4798,8 +4944,7 @@ static void proc_config_on_close( struct inode *inode, struct file *file ) { case 'd': ai->config.modulation=MOD_DEFAULT; set_bit(FLAG_COMMIT, &ai->flags); break; case 'c': ai->config.modulation=MOD_CCK; set_bit(FLAG_COMMIT, &ai->flags); break; case 'm': ai->config.modulation=MOD_MOK; set_bit(FLAG_COMMIT, &ai->flags); break; - default: - printk( KERN_WARNING "airo: Unknown modulation\n" ); + default: airo_print_warn(ai->dev->name, "Unknown modulation"); } } else if (!strncmp(line, "Preamble: ", 10)) { line += 10; @@ -4807,10 +4952,10 @@ static void proc_config_on_close( struct inode *inode, struct file *file ) { case 'a': ai->config.preamble=PREAMBLE_AUTO; set_bit(FLAG_COMMIT, &ai->flags); break; case 'l': ai->config.preamble=PREAMBLE_LONG; set_bit(FLAG_COMMIT, &ai->flags); break; case 's': ai->config.preamble=PREAMBLE_SHORT; set_bit(FLAG_COMMIT, &ai->flags); break; - default: printk(KERN_WARNING "airo: Unknown preamble\n"); + default: airo_print_warn(ai->dev->name, "Unknown preamble"); } } else { - printk( KERN_WARNING "Couldn't figure out %s\n", line ); + airo_print_warn(ai->dev->name, "Couldn't figure out %s", line); } while( line[0] && line[0] != '\n' ) line++; if ( line[0] ) line++; @@ -5076,7 +5221,7 @@ static void proc_wepkey_on_close( struct inode *inode, struct file *file ) { } j = 2; } else { - printk(KERN_ERR "airo: WepKey passed invalid key index\n"); + airo_print_err(ai->dev->name, "WepKey passed invalid key index"); return; } @@ -5489,17 +5634,16 @@ static int __init airo_init_module( void ) airo_entry->gid = proc_gid; for( i = 0; i < 4 && io[i] && irq[i]; i++ ) { - printk( KERN_INFO - "airo: Trying to configure ISA adapter at irq=%d io=0x%x\n", - irq[i], io[i] ); + airo_print_info("", "Trying to configure ISA adapter at irq=%d " + "io=0x%x", irq[i], io[i] ); if (init_airo_card( irq[i], io[i], 0, NULL )) have_isa_dev = 1; } #ifdef CONFIG_PCI - printk( KERN_INFO "airo: Probing for PCI adapters\n" ); + airo_print_info("", "Probing for PCI adapters"); pci_register_driver(&airo_driver); - printk( KERN_INFO "airo: Finished probing for PCI adapters\n" ); + airo_print_info("", "Finished probing for PCI adapters"); #endif /* Always exit with success, as we are a library module @@ -5511,7 +5655,7 @@ static int __init airo_init_module( void ) static void __exit airo_cleanup_module( void ) { while( airo_devices ) { - printk( KERN_INFO "airo: Unregistering %s\n", airo_devices->dev->name ); + airo_print_info(airo_devices->dev->name, "Unregistering...\n"); stop_airo_card( airo_devices->dev, 1 ); } #ifdef CONFIG_PCI @@ -5622,7 +5766,8 @@ static int airo_set_freq(struct net_device *dev, /* We should do a better check than that, * based on the card capability !!! */ if((channel < 1) || (channel > 14)) { - printk(KERN_DEBUG "%s: New channel value of %d is invalid!\n", dev->name, fwrq->m); + airo_print_dbg(dev->name, "New channel value of %d is invalid!", + fwrq->m); rc = -EINVAL; } else { readConfigRid(local, 1); @@ -5946,8 +6091,8 @@ static int airo_set_rts(struct net_device *dev, int rthr = vwrq->value; if(vwrq->disabled) - rthr = 2312; - if((rthr < 0) || (rthr > 2312)) { + rthr = AIRO_DEF_MTU; + if((rthr < 0) || (rthr > AIRO_DEF_MTU)) { return -EINVAL; } readConfigRid(local, 1); @@ -5970,7 +6115,7 @@ static int airo_get_rts(struct net_device *dev, readConfigRid(local, 1); vwrq->value = local->config.rtsThres; - vwrq->disabled = (vwrq->value >= 2312); + vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU); vwrq->fixed = 1; return 0; @@ -5989,8 +6134,8 @@ static int airo_set_frag(struct net_device *dev, int fthr = vwrq->value; if(vwrq->disabled) - fthr = 2312; - if((fthr < 256) || (fthr > 2312)) { + fthr = AIRO_DEF_MTU; + if((fthr < 256) || (fthr > AIRO_DEF_MTU)) { return -EINVAL; } fthr &= ~0x1; /* Get an even value - is it really needed ??? */ @@ -6014,7 +6159,7 @@ static int airo_get_frag(struct net_device *dev, readConfigRid(local, 1); vwrq->value = local->config.fragThresh; - vwrq->disabled = (vwrq->value >= 2312); + vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU); vwrq->fixed = 1; return 0; @@ -6709,9 +6854,9 @@ static int airo_get_range(struct net_device *dev, range->throughput = 1500 * 1000; range->min_rts = 0; - range->max_rts = 2312; + range->max_rts = AIRO_DEF_MTU; range->min_frag = 256; - range->max_frag = 2312; + range->max_frag = AIRO_DEF_MTU; if(cap_rid.softCap & 2) { // WEP: RC4 40 bits @@ -6972,6 +7117,7 @@ static int airo_set_scan(struct net_device *dev, struct airo_info *ai = dev->priv; Cmd cmd; Resp rsp; + int wake = 0; /* Note : you may have realised that, as this is a SET operation, * this is privileged and therefore a normal user can't @@ -6981,17 +7127,25 @@ static int airo_set_scan(struct net_device *dev, * Jean II */ if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN; + if (down_interruptible(&ai->sem)) + return -ERESTARTSYS; + + /* If there's already a scan in progress, don't + * trigger another one. */ + if (ai->scan_timeout > 0) + goto out; + /* Initiate a scan command */ memset(&cmd, 0, sizeof(cmd)); cmd.cmd=CMD_LISTBSS; - if (down_interruptible(&ai->sem)) - return -ERESTARTSYS; issuecommand(ai, &cmd, &rsp); - ai->scan_timestamp = jiffies; - up(&ai->sem); - - /* At this point, just return to the user. */ + ai->scan_timeout = RUN_AT(3*HZ); + wake = 1; +out: + up(&ai->sem); + if (wake) + wake_up_interruptible(&ai->thr_wait); return 0; } @@ -7111,59 +7265,38 @@ static int airo_get_scan(struct net_device *dev, char *extra) { struct airo_info *ai = dev->priv; - BSSListRid BSSList; - int rc; + BSSListElement *net; + int err = 0; char *current_ev = extra; - /* When we are associated again, the scan has surely finished. - * Just in case, let's make sure enough time has elapsed since - * we started the scan. - Javier */ - if(ai->scan_timestamp && time_before(jiffies,ai->scan_timestamp+3*HZ)) { - /* Important note : we don't want to block the caller - * until results are ready for various reasons. - * First, managing wait queues is complex and racy - * (there may be multiple simultaneous callers). - * Second, we grab some rtnetlink lock before comming - * here (in dev_ioctl()). - * Third, the caller can wait on the Wireless Event - * - Jean II */ + /* If a scan is in-progress, return -EAGAIN */ + if (ai->scan_timeout > 0) return -EAGAIN; - } - ai->scan_timestamp = 0; - /* There's only a race with proc_BSSList_open(), but its - * consequences are begnign. So I don't bother fixing it - Javier */ - - /* Try to read the first entry of the scan result */ - rc = PC4500_readrid(ai, RID_BSSLISTFIRST, &BSSList, sizeof(BSSList), 1); - if((rc) || (BSSList.index == 0xffff)) { - /* Client error, no scan results... - * The caller need to restart the scan. */ - return -ENODATA; - } + if (down_interruptible(&ai->sem)) + return -EAGAIN; - /* Read and parse all entries */ - while((!rc) && (BSSList.index != 0xffff)) { + list_for_each_entry (net, &ai->network_list, list) { /* Translate to WE format this entry */ current_ev = airo_translate_scan(dev, current_ev, extra + dwrq->length, - &BSSList); + &net->bss); /* Check if there is space for one more entry */ if((extra + dwrq->length - current_ev) <= IW_EV_ADDR_LEN) { /* Ask user space to try again with a bigger buffer */ - return -E2BIG; + err = -E2BIG; + goto out; } - - /* Read next entry */ - rc = PC4500_readrid(ai, RID_BSSLISTNEXT, - &BSSList, sizeof(BSSList), 1); } + /* Length of data */ dwrq->length = (current_ev - extra); dwrq->flags = 0; /* todo */ - return 0; +out: + up(&ai->sem); + return err; } /*------------------------------------------------------------------*/ @@ -7711,7 +7844,7 @@ static int cmdreset(struct airo_info *ai) { disable_MAC(ai, 1); if(!waitbusy (ai)){ - printk(KERN_INFO "Waitbusy hang before RESET\n"); + airo_print_info(ai->dev->name, "Waitbusy hang before RESET"); return -EBUSY; } @@ -7720,7 +7853,7 @@ static int cmdreset(struct airo_info *ai) { ssleep(1); /* WAS 600 12/7/00 */ if(!waitbusy (ai)){ - printk(KERN_INFO "Waitbusy hang AFTER RESET\n"); + airo_print_info(ai->dev->name, "Waitbusy hang AFTER RESET"); return -EBUSY; } return 0; @@ -7748,7 +7881,7 @@ static int setflashmode (struct airo_info *ai) { if(!waitbusy(ai)) { clear_bit (FLAG_FLASHING, &ai->flags); - printk(KERN_INFO "Waitbusy hang after setflash mode\n"); + airo_print_info(ai->dev->name, "Waitbusy hang after setflash mode"); return -EIO; } return 0; @@ -7777,7 +7910,7 @@ static int flashpchar(struct airo_info *ai,int byte,int dwelltime) { /* timeout for busy clear wait */ if(waittime <= 0 ){ - printk(KERN_INFO "flash putchar busywait timeout! \n"); + airo_print_info(ai->dev->name, "flash putchar busywait timeout!"); return -EBUSY; } @@ -7866,7 +7999,7 @@ static int flashrestart(struct airo_info *ai,struct net_device *dev){ if (!test_bit(FLAG_MPI,&ai->flags)) for( i = 0; i < MAX_FIDS; i++ ) { ai->fids[i] = transmit_allocate - ( ai, 2312, i >= MAX_FIDS / 2 ); + ( ai, AIRO_DEF_MTU, i >= MAX_FIDS / 2 ); } ssleep(1); /* Added 12/7/00 */ diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c index 753a1de6664b..06c3fa32b310 100644 --- a/drivers/net/wireless/hostap/hostap_ap.c +++ b/drivers/net/wireless/hostap/hostap_ap.c @@ -3141,7 +3141,7 @@ int hostap_add_sta(struct ap_data *ap, u8 *sta_addr) if (ret == 1) { sta = ap_add_sta(ap, sta_addr); if (!sta) - ret = -1; + return -1; sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC; sta->ap = 1; memset(sta->supported_rates, 0, sizeof(sta->supported_rates)); diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c index f8f4503475f9..d335b250923a 100644 --- a/drivers/net/wireless/hostap/hostap_cs.c +++ b/drivers/net/wireless/hostap/hostap_cs.c @@ -585,8 +585,6 @@ static int prism2_config(dev_link_t *link) parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL); hw_priv = kmalloc(sizeof(*hw_priv), GFP_KERNEL); if (parse == NULL || hw_priv == NULL) { - kfree(parse); - kfree(hw_priv); ret = -ENOMEM; goto failed; } diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c index b1f142d9e232..328e9a1d13b5 100644 --- a/drivers/net/wireless/hostap/hostap_hw.c +++ b/drivers/net/wireless/hostap/hostap_hw.c @@ -928,15 +928,15 @@ static int hfa384x_set_rid(struct net_device *dev, u16 rid, void *buf, int len) res = hfa384x_cmd(dev, HFA384X_CMDCODE_ACCESS_WRITE, rid, NULL, NULL); up(&local->rid_bap_sem); + if (res) { printk(KERN_DEBUG "%s: hfa384x_set_rid: CMDCODE_ACCESS_WRITE " "failed (res=%d, rid=%04x, len=%d)\n", dev->name, res, rid, len); - return res; - } - if (res == -ETIMEDOUT) - prism2_hw_reset(dev); + if (res == -ETIMEDOUT) + prism2_hw_reset(dev); + } return res; } diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c index f3e0ce1ee037..8b37e824dfcb 100644 --- a/drivers/net/wireless/hostap/hostap_ioctl.c +++ b/drivers/net/wireless/hostap/hostap_ioctl.c @@ -3358,10 +3358,6 @@ static int prism2_ioctl_siwencodeext(struct net_device *dev, if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { if (!sta_ptr) local->tx_keyidx = i; - else if (i) { - ret = -EINVAL; - goto done; - } } diff --git a/drivers/net/wireless/hostap/hostap_pci.c b/drivers/net/wireless/hostap/hostap_pci.c index 2e85bdced2dd..194f07097581 100644 --- a/drivers/net/wireless/hostap/hostap_pci.c +++ b/drivers/net/wireless/hostap/hostap_pci.c @@ -307,7 +307,7 @@ static int prism2_pci_probe(struct pci_dev *pdev, memset(hw_priv, 0, sizeof(*hw_priv)); if (pci_enable_device(pdev)) - return -EIO; + goto err_out_free; phymem = pci_resource_start(pdev, 0); @@ -368,6 +368,8 @@ static int prism2_pci_probe(struct pci_dev *pdev, err_out_disable: pci_disable_device(pdev); prism2_free_local_data(dev); + + err_out_free: kfree(hw_priv); return -ENODEV; diff --git a/drivers/net/wireless/hostap/hostap_plx.c b/drivers/net/wireless/hostap/hostap_plx.c index 94fe2449f099..edaaa943eb8f 100644 --- a/drivers/net/wireless/hostap/hostap_plx.c +++ b/drivers/net/wireless/hostap/hostap_plx.c @@ -368,7 +368,7 @@ static int prism2_plx_check_cis(void __iomem *attr_mem, int attr_len, switch (cis[pos]) { case CISTPL_CONFIG: - if (cis[pos + 1] < 1) + if (cis[pos + 1] < 2) goto cis_error; rmsz = (cis[pos + 2] & 0x3c) >> 2; rasz = cis[pos + 2] & 0x03; @@ -390,7 +390,7 @@ static int prism2_plx_check_cis(void __iomem *attr_mem, int attr_len, break; case CISTPL_MANFID: - if (cis[pos + 1] < 4) + if (cis[pos + 1] < 5) goto cis_error; manfid1 = cis[pos + 2] + (cis[pos + 3] << 8); manfid2 = cis[pos + 4] + (cis[pos + 5] << 8); @@ -452,7 +452,7 @@ static int prism2_plx_probe(struct pci_dev *pdev, memset(hw_priv, 0, sizeof(*hw_priv)); if (pci_enable_device(pdev)) - return -EIO; + goto err_out_free; /* National Datacomm NCP130 based on TMD7160, not PLX9052. */ tmd7160 = (pdev->vendor == 0x15e8) && (pdev->device == 0x0131); @@ -567,9 +567,6 @@ static int prism2_plx_probe(struct pci_dev *pdev, return hostap_hw_ready(dev); fail: - prism2_free_local_data(dev); - kfree(hw_priv); - if (irq_registered && dev) free_irq(dev->irq, dev); @@ -577,6 +574,10 @@ static int prism2_plx_probe(struct pci_dev *pdev, iounmap(attr_mem); pci_disable_device(pdev); + prism2_free_local_data(dev); + + err_out_free: + kfree(hw_priv); return -ENODEV; } diff --git a/include/linux/wireless.h b/include/linux/wireless.h index a555a0f7a7b4..13588564b42b 100644 --- a/include/linux/wireless.h +++ b/include/linux/wireless.h @@ -1,10 +1,10 @@ /* * This file define a set of standard wireless extensions * - * Version : 19 18.3.05 + * Version : 20 17.2.06 * * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com> - * Copyright (c) 1997-2005 Jean Tourrilhes, All Rights Reserved. + * Copyright (c) 1997-2006 Jean Tourrilhes, All Rights Reserved. */ #ifndef _LINUX_WIRELESS_H @@ -80,7 +80,7 @@ * (there is some stuff that will be added in the future...) * I just plan to increment with each new version. */ -#define WIRELESS_EXT 19 +#define WIRELESS_EXT 20 /* * Changes : @@ -204,6 +204,10 @@ * - Add IW_QUAL_ALL_UPDATED and IW_QUAL_ALL_INVALID macros * - Add explicit flag to tell stats are in dBm : IW_QUAL_DBM * - Add IW_IOCTL_IDX() and IW_EVENT_IDX() macros + * + * V19 to V20 + * ---------- + * - RtNetlink requests support (SET/GET) */ /**************************** CONSTANTS ****************************/ diff --git a/include/net/ieee80211softmac.h b/include/net/ieee80211softmac.h new file mode 100644 index 000000000000..b971d8c82bdd --- /dev/null +++ b/include/net/ieee80211softmac.h @@ -0,0 +1,292 @@ +/* + * ieee80211softmac.h - public interface to the softmac + * + * Copyright (c) 2005 Johannes Berg <johannes@sipsolutions.net> + * Joseph Jezak <josejx@gentoo.org> + * Larry Finger <Larry.Finger@lwfinger.net> + * Danny van Dyk <kugelfang@gentoo.org> + * Michael Buesch <mbuesch@freenet.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * The full GNU General Public License is included in this distribution in the + * file called COPYING. + */ + +#ifndef IEEE80211SOFTMAC_H_ +#define IEEE80211SOFTMAC_H_ + +#include <linux/kernel.h> +#include <linux/spinlock.h> +#include <linux/workqueue.h> +#include <linux/list.h> +#include <net/ieee80211.h> + +/* Once the API is considered more or less stable, + * this should be incremented on API incompatible changes. + */ +#define IEEE80211SOFTMAC_API 0 + +#define IEEE80211SOFTMAC_MAX_RATES_LEN 8 +#define IEEE80211SOFTMAC_MAX_EX_RATES_LEN 255 + +struct ieee80211softmac_ratesinfo { + u8 count; + u8 rates[IEEE80211SOFTMAC_MAX_RATES_LEN + IEEE80211SOFTMAC_MAX_EX_RATES_LEN]; +}; + +/* internal structures */ +struct ieee80211softmac_network; +struct ieee80211softmac_scaninfo; + +struct ieee80211softmac_essid { + u8 len; + char data[IW_ESSID_MAX_SIZE+1]; +}; + +struct ieee80211softmac_wpa { + char *IE; + int IElen; + int IEbuflen; +}; + +/* + * Information about association + * + * Do we need a lock for this? + * We only ever use this structure inlined + * into our global struct. I've used its lock, + * but maybe we need a local one here? + */ +struct ieee80211softmac_assoc_info { + /* + * This is the requested ESSID. It is written + * only by the WX handlers. + * + */ + struct ieee80211softmac_essid req_essid; + /* + * the ESSID of the network we're currently + * associated (or trying) to. This is + * updated to the network's actual ESSID + * even if the requested ESSID was 'ANY' + */ + struct ieee80211softmac_essid associate_essid; + + /* BSSID we're trying to associate to */ + char bssid[ETH_ALEN]; + + /* some flags. + * static_essid is valid if the essid is constant, + * this is for use by the wx handlers only. + * + * associating is true, if the network has been + * auth'ed on and we are in the process of associating. + * + * bssvalid is true if we found a matching network + * and saved it's BSSID into the bssid above. + */ + u8 static_essid:1, + associating:1, + bssvalid:1; + + /* Scan retries remaining */ + int scan_retry; + + struct work_struct work; + struct work_struct timeout; +}; + +enum { + IEEE80211SOFTMAC_AUTH_OPEN_REQUEST = 1, + IEEE80211SOFTMAC_AUTH_OPEN_RESPONSE = 2, +}; + +enum { + IEEE80211SOFTMAC_AUTH_SHARED_REQUEST = 1, + IEEE80211SOFTMAC_AUTH_SHARED_CHALLENGE = 2, + IEEE80211SOFTMAC_AUTH_SHARED_RESPONSE = 3, + IEEE80211SOFTMAC_AUTH_SHARED_PASS = 4, +}; + +/* We should make these tunable + * AUTH_TIMEOUT seems really long, but that's what it is in BSD */ +#define IEEE80211SOFTMAC_AUTH_TIMEOUT (12 * HZ) +#define IEEE80211SOFTMAC_AUTH_RETRY_LIMIT 5 +#define IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT 3 + +struct ieee80211softmac_txrates { + /* The Bit-Rate to be used for multicast frames. */ + u8 mcast_rate; + /* The Bit-Rate to be used for multicast fallback + * (If the device supports fallback and hardware-retry) + */ + u8 mcast_fallback; + /* The Bit-Rate to be used for any other (normal) data packet. */ + u8 default_rate; + /* The Bit-Rate to be used for default fallback + * (If the device supports fallback and hardware-retry) + */ + u8 default_fallback; +}; + +/* Bits for txrates_change callback. */ +#define IEEE80211SOFTMAC_TXRATECHG_DEFAULT (1 << 0) /* default_rate */ +#define IEEE80211SOFTMAC_TXRATECHG_DEFAULT_FBACK (1 << 1) /* default_fallback */ +#define IEEE80211SOFTMAC_TXRATECHG_MCAST (1 << 2) /* mcast_rate */ +#define IEEE80211SOFTMAC_TXRATECHG_MCAST_FBACK (1 << 3) /* mcast_fallback */ + +struct ieee80211softmac_device { + /* 802.11 structure for data stuff */ + struct ieee80211_device *ieee; + struct net_device *dev; + + /* only valid if associated, then holds the Association ID */ + u16 association_id; + + /* the following methods are callbacks that the driver + * using this framework has to assign + */ + + /* always assign these */ + void (*set_bssid_filter)(struct net_device *dev, const u8 *bssid); + void (*set_channel)(struct net_device *dev, u8 channel); + + /* assign if you need it, informational only */ + void (*link_change)(struct net_device *dev); + + /* If the hardware can do scanning, assign _all_ three of these callbacks. + * When the scan finishes, call ieee80211softmac_scan_finished(). + */ + + /* when called, start_scan is guaranteed to not be called again + * until you call ieee80211softmac_scan_finished. + * Return 0 if scanning could start, error otherwise. + * SOFTMAC AUTHORS: don't call this, use ieee80211softmac_start_scan */ + int (*start_scan)(struct net_device *dev); + /* this should block until after ieee80211softmac_scan_finished was called + * SOFTMAC AUTHORS: don't call this, use ieee80211softmac_wait_for_scan */ + void (*wait_for_scan)(struct net_device *dev); + /* stop_scan aborts a scan, but is asynchronous. + * if you want to wait for it too, use wait_for_scan + * SOFTMAC AUTHORS: don't call this, use ieee80211softmac_stop_scan */ + void (*stop_scan)(struct net_device *dev); + + /* we'll need something about beacons here too, for AP or ad-hoc modes */ + + /* Transmission rates to be used by the driver. + * The SoftMAC figures out the best possible rates. + * The driver just needs to read them. + */ + struct ieee80211softmac_txrates txrates; + /* If the driver needs to do stuff on TX rate changes, assign this callback. */ + void (*txrates_change)(struct net_device *dev, + u32 changes, /* see IEEE80211SOFTMAC_TXRATECHG flags */ + const struct ieee80211softmac_txrates *rates_before_change); + + /* private stuff follows */ + /* this lock protects this structure */ + spinlock_t lock; + + /* couple of flags */ + u8 scanning:1, /* protects scanning from being done multiple times at once */ + associated:1; + + struct ieee80211softmac_scaninfo *scaninfo; + struct ieee80211softmac_assoc_info associnfo; + + struct list_head auth_queue; + struct list_head events; + + struct ieee80211softmac_ratesinfo ratesinfo; + int txrate_badness; + + /* WPA stuff */ + struct ieee80211softmac_wpa wpa; + + /* we need to keep a list of network structs we copied */ + struct list_head network_list; + + /* This must be the last item so that it points to the data + * allocated beyond this structure by alloc_ieee80211 */ + u8 priv[0]; +}; + +extern void ieee80211softmac_scan_finished(struct ieee80211softmac_device *sm); + +static inline void * ieee80211softmac_priv(struct net_device *dev) +{ + return ((struct ieee80211softmac_device *)ieee80211_priv(dev))->priv; +} + +extern struct net_device * alloc_ieee80211softmac(int sizeof_priv); +extern void free_ieee80211softmac(struct net_device *dev); + +/* Call this function if you detect a lost TX fragment. + * (If the device indicates failure of ACK RX, for example.) + * It is wise to call this function if you are able to detect lost packets, + * because it contributes to the TX Rates auto adjustment. + */ +extern void ieee80211softmac_fragment_lost(struct net_device *dev, + u16 wireless_sequence_number); +/* Call this function before _start to tell the softmac what rates + * the hw supports. The rates parameter is copied, so you can + * free it right after calling this function. + * Note that the rates need to be sorted. */ +extern void ieee80211softmac_set_rates(struct net_device *dev, u8 count, u8 *rates); + +/* Start the SoftMAC. Call this after you initialized the device + * and it is ready to run. + */ +extern void ieee80211softmac_start(struct net_device *dev); +/* Stop the SoftMAC. Call this before you shutdown the device. */ +extern void ieee80211softmac_stop(struct net_device *dev); + +/* + * Event system + */ + +/* valid event types */ +#define IEEE80211SOFTMAC_EVENT_ANY -1 /*private use only*/ +#define IEEE80211SOFTMAC_EVENT_SCAN_FINISHED 0 +#define IEEE80211SOFTMAC_EVENT_ASSOCIATED 1 +#define IEEE80211SOFTMAC_EVENT_ASSOCIATE_FAILED 2 +#define IEEE80211SOFTMAC_EVENT_ASSOCIATE_TIMEOUT 3 +#define IEEE80211SOFTMAC_EVENT_AUTHENTICATED 4 +#define IEEE80211SOFTMAC_EVENT_AUTH_FAILED 5 +#define IEEE80211SOFTMAC_EVENT_AUTH_TIMEOUT 6 +#define IEEE80211SOFTMAC_EVENT_ASSOCIATE_NET_NOT_FOUND 7 +/* keep this updated! */ +#define IEEE80211SOFTMAC_EVENT_LAST 7 +/* + * If you want to be notified of certain events, you can call + * ieee80211softmac_notify[_atomic] with + * - event set to one of the constants below + * - fun set to a function pointer of the appropriate type + * - context set to the context data you want passed + * The return value is 0, or an error. + */ +typedef void (*notify_function_ptr)(struct net_device *dev, void *context); + +#define ieee80211softmac_notify(dev, event, fun, context) ieee80211softmac_notify_gfp(dev, event, fun, context, GFP_KERNEL); +#define ieee80211softmac_notify_atomic(dev, event, fun, context) ieee80211softmac_notify_gfp(dev, event, fun, context, GFP_ATOMIC); + +extern int ieee80211softmac_notify_gfp(struct net_device *dev, + int event, notify_function_ptr fun, void *context, gfp_t gfp_mask); + +/* To clear pending work (for ifconfig down, etc.) */ +extern void +ieee80211softmac_clear_pending_work(struct ieee80211softmac_device *sm); + +#endif /* IEEE80211SOFTMAC_H_ */ diff --git a/include/net/ieee80211softmac_wx.h b/include/net/ieee80211softmac_wx.h new file mode 100644 index 000000000000..3e0be453ecea --- /dev/null +++ b/include/net/ieee80211softmac_wx.h @@ -0,0 +1,94 @@ +/* + * This file contains the prototypes for the wireless extension + * handlers that the softmac API provides. Include this file to + * use the wx handlers, you can assign these directly. + * + * Copyright (c) 2005 Johannes Berg <johannes@sipsolutions.net> + * Joseph Jezak <josejx@gentoo.org> + * Larry Finger <Larry.Finger@lwfinger.net> + * Danny van Dyk <kugelfang@gentoo.org> + * Michael Buesch <mbuesch@freenet.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * The full GNU General Public License is included in this distribution in the + * file called COPYING. + */ + +#ifndef _IEEE80211SOFTMAC_WX_H +#define _IEEE80211SOFTMAC_WX_H + +#include <net/ieee80211softmac.h> +#include <net/iw_handler.h> + +extern int +ieee80211softmac_wx_trigger_scan(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra); + +extern int +ieee80211softmac_wx_get_scan_results(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra); + +extern int +ieee80211softmac_wx_set_essid(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra); + +extern int +ieee80211softmac_wx_get_essid(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra); + +extern int +ieee80211softmac_wx_set_rate(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra); + +extern int +ieee80211softmac_wx_get_rate(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra); + +extern int +ieee80211softmac_wx_get_wap(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra); + +extern int +ieee80211softmac_wx_set_wap(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra); + +extern int +ieee80211softmac_wx_set_genie(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra); + +extern int +ieee80211softmac_wx_get_genie(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra); +#endif /* _IEEE80211SOFTMAC_WX */ diff --git a/include/net/iw_handler.h b/include/net/iw_handler.h index a2c5e0b88422..10559e937d27 100644 --- a/include/net/iw_handler.h +++ b/include/net/iw_handler.h @@ -4,7 +4,7 @@ * Version : 7 18.3.05 * * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com> - * Copyright (c) 2001-2005 Jean Tourrilhes, All Rights Reserved. + * Copyright (c) 2001-2006 Jean Tourrilhes, All Rights Reserved. */ #ifndef _IW_HANDLER_H @@ -436,6 +436,16 @@ extern int dev_get_wireless_info(char * buffer, char **start, off_t offset, /* Handle IOCTLs, called in net/core/dev.c */ extern int wireless_process_ioctl(struct ifreq *ifr, unsigned int cmd); +/* Handle RtNetlink requests, called in net/core/rtnetlink.c */ +extern int wireless_rtnetlink_set(struct net_device * dev, + char * data, + int len); +extern int wireless_rtnetlink_get(struct net_device * dev, + char * data, + int len, + char ** p_buf, + int * p_len); + /* Second : functions that may be called by driver modules */ /* Send a single event to user space */ diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index ae10d3740faa..3fcfa9c59e1f 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -51,6 +51,10 @@ #include <net/sock.h> #include <net/pkt_sched.h> #include <net/netlink.h> +#ifdef CONFIG_NET_WIRELESS_RTNETLINK +#include <linux/wireless.h> +#include <net/iw_handler.h> +#endif /* CONFIG_NET_WIRELESS_RTNETLINK */ static DEFINE_MUTEX(rtnl_mutex); @@ -467,6 +471,17 @@ static int do_setlink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg) goto out; } +#ifdef CONFIG_NET_WIRELESS_RTNETLINK + if (ida[IFLA_WIRELESS - 1]) { + + /* Call Wireless Extensions. + * Various stuff checked in there... */ + err = wireless_rtnetlink_set(dev, RTA_DATA(ida[IFLA_WIRELESS - 1]), ida[IFLA_WIRELESS - 1]->rta_len); + if (err) + goto out; + } +#endif /* CONFIG_NET_WIRELESS_RTNETLINK */ + err = 0; out: @@ -477,6 +492,83 @@ out: return err; } +#ifdef CONFIG_NET_WIRELESS_RTNETLINK +static int do_getlink(struct sk_buff *in_skb, struct nlmsghdr* in_nlh, void *arg) +{ + struct ifinfomsg *ifm = NLMSG_DATA(in_nlh); + struct rtattr **ida = arg; + struct net_device *dev; + struct ifinfomsg *r; + struct nlmsghdr *nlh; + int err = -ENOBUFS; + struct sk_buff *skb; + unsigned char *b; + char *iw_buf = NULL; + int iw_buf_len = 0; + + if (ifm->ifi_index >= 0) + dev = dev_get_by_index(ifm->ifi_index); + else + return -EINVAL; + if (!dev) + return -ENODEV; + +#ifdef CONFIG_NET_WIRELESS_RTNETLINK + if (ida[IFLA_WIRELESS - 1]) { + + /* Call Wireless Extensions. We need to know the size before + * we can alloc. Various stuff checked in there... */ + err = wireless_rtnetlink_get(dev, RTA_DATA(ida[IFLA_WIRELESS - 1]), ida[IFLA_WIRELESS - 1]->rta_len, &iw_buf, &iw_buf_len); + if (err) + goto out; + } +#endif /* CONFIG_NET_WIRELESS_RTNETLINK */ + + /* Create a skb big enough to include all the data. + * Some requests are way bigger than 4k... Jean II */ + skb = alloc_skb((NLMSG_LENGTH(sizeof(*r))) + (RTA_SPACE(iw_buf_len)), + GFP_KERNEL); + if (!skb) + goto out; + b = skb->tail; + + /* Put in the message the usual good stuff */ + nlh = NLMSG_PUT(skb, NETLINK_CB(in_skb).pid, in_nlh->nlmsg_seq, + RTM_NEWLINK, sizeof(*r)); + r = NLMSG_DATA(nlh); + r->ifi_family = AF_UNSPEC; + r->__ifi_pad = 0; + r->ifi_type = dev->type; + r->ifi_index = dev->ifindex; + r->ifi_flags = dev->flags; + r->ifi_change = 0; + + /* Put the wireless payload if it exist */ + if(iw_buf != NULL) + RTA_PUT(skb, IFLA_WIRELESS, iw_buf_len, + iw_buf + IW_EV_POINT_OFF); + + nlh->nlmsg_len = skb->tail - b; + + /* Needed ? */ + NETLINK_CB(skb).dst_pid = NETLINK_CB(in_skb).pid; + + err = netlink_unicast(rtnl, skb, NETLINK_CB(in_skb).pid, MSG_DONTWAIT); + if (err > 0) + err = 0; +out: + if(iw_buf != NULL) + kfree(iw_buf); + dev_put(dev); + return err; + +rtattr_failure: +nlmsg_failure: + kfree_skb(skb); + goto out; +} +#endif /* CONFIG_NET_WIRELESS_RTNETLINK */ + static int rtnetlink_dump_all(struct sk_buff *skb, struct netlink_callback *cb) { int idx; @@ -642,7 +734,11 @@ static void rtnetlink_rcv(struct sock *sk, int len) static struct rtnetlink_link link_rtnetlink_table[RTM_NR_MSGTYPES] = { - [RTM_GETLINK - RTM_BASE] = { .dumpit = rtnetlink_dump_ifinfo }, + [RTM_GETLINK - RTM_BASE] = { +#ifdef CONFIG_NET_WIRELESS_RTNETLINK + .doit = do_getlink, +#endif /* CONFIG_NET_WIRELESS_RTNETLINK */ + .dumpit = rtnetlink_dump_ifinfo }, [RTM_SETLINK - RTM_BASE] = { .doit = do_setlink }, [RTM_GETADDR - RTM_BASE] = { .dumpit = rtnetlink_dump_all }, [RTM_GETROUTE - RTM_BASE] = { .dumpit = rtnetlink_dump_all }, diff --git a/net/core/wireless.c b/net/core/wireless.c index 2add7ed609e9..81d6995fcfdb 100644 --- a/net/core/wireless.c +++ b/net/core/wireless.c @@ -2,7 +2,7 @@ * This file implement the Wireless Extensions APIs. * * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com> - * Copyright (c) 1997-2005 Jean Tourrilhes, All Rights Reserved. + * Copyright (c) 1997-2006 Jean Tourrilhes, All Rights Reserved. * * (As all part of the Linux kernel, this file is GPL) */ @@ -65,6 +65,9 @@ * o Start deprecating dev->get_wireless_stats, output a warning * o If IW_QUAL_DBM is set, show dBm values in /proc/net/wireless * o Don't loose INVALID/DBM flags when clearing UPDATED flags (iwstats) + * + * v8 - 17.02.06 - Jean II + * o RtNetlink requests support (SET/GET) */ /***************************** INCLUDES *****************************/ @@ -89,11 +92,13 @@ /* Debugging stuff */ #undef WE_IOCTL_DEBUG /* Debug IOCTL API */ +#undef WE_RTNETLINK_DEBUG /* Debug RtNetlink API */ #undef WE_EVENT_DEBUG /* Debug Event dispatcher */ #undef WE_SPY_DEBUG /* Debug enhanced spy support */ /* Options */ -#define WE_EVENT_NETLINK /* Propagate events using rtnetlink */ +//CONFIG_NET_WIRELESS_RTNETLINK /* Wireless requests over RtNetlink */ +#define WE_EVENT_RTNETLINK /* Propagate events using RtNetlink */ #define WE_SET_EVENT /* Generate an event on some set commands */ /************************* GLOBAL VARIABLES *************************/ @@ -156,13 +161,18 @@ static const struct iw_ioctl_description standard_ioctl[] = { .header_type = IW_HEADER_TYPE_NULL, }, [SIOCGIWPRIV - SIOCIWFIRST] = { /* (handled directly by us) */ - .header_type = IW_HEADER_TYPE_NULL, + .header_type = IW_HEADER_TYPE_POINT, + .token_size = sizeof(struct iw_priv_args), + .max_tokens = 16, + .flags = IW_DESCR_FLAG_NOMAX, }, [SIOCSIWSTATS - SIOCIWFIRST] = { .header_type = IW_HEADER_TYPE_NULL, }, [SIOCGIWSTATS - SIOCIWFIRST] = { /* (handled directly by us) */ - .header_type = IW_HEADER_TYPE_NULL, + .header_type = IW_HEADER_TYPE_POINT, + .token_size = 1, + .max_tokens = sizeof(struct iw_statistics), .flags = IW_DESCR_FLAG_DUMP, }, [SIOCSIWSPY - SIOCIWFIRST] = { @@ -529,6 +539,70 @@ static inline int adjust_priv_size(__u16 args, return num * iw_priv_type_size[type]; } +/* ---------------------------------------------------------------- */ +/* + * Standard Wireless Handler : get wireless stats + * Allow programatic access to /proc/net/wireless even if /proc + * doesn't exist... Also more efficient... + */ +static int iw_handler_get_iwstats(struct net_device * dev, + struct iw_request_info * info, + union iwreq_data * wrqu, + char * extra) +{ + /* Get stats from the driver */ + struct iw_statistics *stats; + + stats = get_wireless_stats(dev); + if (stats != (struct iw_statistics *) NULL) { + + /* Copy statistics to extra */ + memcpy(extra, stats, sizeof(struct iw_statistics)); + wrqu->data.length = sizeof(struct iw_statistics); + + /* Check if we need to clear the updated flag */ + if(wrqu->data.flags != 0) + stats->qual.updated &= ~IW_QUAL_ALL_UPDATED; + return 0; + } else + return -EOPNOTSUPP; +} + +/* ---------------------------------------------------------------- */ +/* + * Standard Wireless Handler : get iwpriv definitions + * Export the driver private handler definition + * They will be picked up by tools like iwpriv... + */ +static int iw_handler_get_private(struct net_device * dev, + struct iw_request_info * info, + union iwreq_data * wrqu, + char * extra) +{ + /* Check if the driver has something to export */ + if((dev->wireless_handlers->num_private_args == 0) || + (dev->wireless_handlers->private_args == NULL)) + return -EOPNOTSUPP; + + /* Check if there is enough buffer up there */ + if(wrqu->data.length < dev->wireless_handlers->num_private_args) { + /* User space can't know in advance how large the buffer + * needs to be. Give it a hint, so that we can support + * any size buffer we want somewhat efficiently... */ + wrqu->data.length = dev->wireless_handlers->num_private_args; + return -E2BIG; + } + + /* Set the number of available ioctls. */ + wrqu->data.length = dev->wireless_handlers->num_private_args; + + /* Copy structure to the user buffer. */ + memcpy(extra, dev->wireless_handlers->private_args, + sizeof(struct iw_priv_args) * wrqu->data.length); + + return 0; +} + /******************** /proc/net/wireless SUPPORT ********************/ /* @@ -630,81 +704,14 @@ int __init wireless_proc_init(void) /* ---------------------------------------------------------------- */ /* - * Allow programatic access to /proc/net/wireless even if /proc - * doesn't exist... Also more efficient... - */ -static inline int dev_iwstats(struct net_device *dev, struct ifreq *ifr) -{ - /* Get stats from the driver */ - struct iw_statistics *stats; - - stats = get_wireless_stats(dev); - if (stats != (struct iw_statistics *) NULL) { - struct iwreq * wrq = (struct iwreq *)ifr; - - /* Copy statistics to the user buffer */ - if(copy_to_user(wrq->u.data.pointer, stats, - sizeof(struct iw_statistics))) - return -EFAULT; - - /* Check if we need to clear the updated flag */ - if(wrq->u.data.flags != 0) - stats->qual.updated &= ~IW_QUAL_ALL_UPDATED; - return 0; - } else - return -EOPNOTSUPP; -} - -/* ---------------------------------------------------------------- */ -/* - * Export the driver private handler definition - * They will be picked up by tools like iwpriv... - */ -static inline int ioctl_export_private(struct net_device * dev, - struct ifreq * ifr) -{ - struct iwreq * iwr = (struct iwreq *) ifr; - - /* Check if the driver has something to export */ - if((dev->wireless_handlers->num_private_args == 0) || - (dev->wireless_handlers->private_args == NULL)) - return -EOPNOTSUPP; - - /* Check NULL pointer */ - if(iwr->u.data.pointer == NULL) - return -EFAULT; - - /* Check if there is enough buffer up there */ - if(iwr->u.data.length < dev->wireless_handlers->num_private_args) { - /* User space can't know in advance how large the buffer - * needs to be. Give it a hint, so that we can support - * any size buffer we want somewhat efficiently... */ - iwr->u.data.length = dev->wireless_handlers->num_private_args; - return -E2BIG; - } - - /* Set the number of available ioctls. */ - iwr->u.data.length = dev->wireless_handlers->num_private_args; - - /* Copy structure to the user buffer. */ - if (copy_to_user(iwr->u.data.pointer, - dev->wireless_handlers->private_args, - sizeof(struct iw_priv_args) * iwr->u.data.length)) - return -EFAULT; - - return 0; -} - -/* ---------------------------------------------------------------- */ -/* * Wrapper to call a standard Wireless Extension handler. * We do various checks and also take care of moving data between * user space and kernel space. */ -static inline int ioctl_standard_call(struct net_device * dev, - struct ifreq * ifr, - unsigned int cmd, - iw_handler handler) +static int ioctl_standard_call(struct net_device * dev, + struct ifreq * ifr, + unsigned int cmd, + iw_handler handler) { struct iwreq * iwr = (struct iwreq *) ifr; const struct iw_ioctl_description * descr; @@ -1048,14 +1055,20 @@ int wireless_process_ioctl(struct ifreq *ifr, unsigned int cmd) { case SIOCGIWSTATS: /* Get Wireless Stats */ - return dev_iwstats(dev, ifr); + return ioctl_standard_call(dev, + ifr, + cmd, + &iw_handler_get_iwstats); case SIOCGIWPRIV: /* Check if we have some wireless handlers defined */ if(dev->wireless_handlers != NULL) { /* We export to user space the definition of * the private handler ourselves */ - return ioctl_export_private(dev, ifr); + return ioctl_standard_call(dev, + ifr, + cmd, + &iw_handler_get_private); } // ## Fall-through for old API ## default: @@ -1088,16 +1101,739 @@ int wireless_process_ioctl(struct ifreq *ifr, unsigned int cmd) return -EINVAL; } +/********************** RTNETLINK REQUEST API **********************/ +/* + * The alternate user space API to configure all those Wireless Extensions + * is through RtNetlink. + * This API support only the new driver API (iw_handler). + * + * This RtNetlink API use the same query/reply model as the ioctl API. + * Maximum effort has been done to fit in the RtNetlink model, and + * we support both RtNetlink Set and RtNelink Get operations. + * On the other hand, we don't offer Dump operations because of the + * following reasons : + * o Large number of parameters, most optional + * o Large size of some parameters (> 100 bytes) + * o Each parameters need to be extracted from hardware + * o Scan requests can take seconds and disable network activity. + * Because of this high cost/overhead, we want to return only the + * parameters the user application is really interested in. + * We could offer partial Dump using the IW_DESCR_FLAG_DUMP flag. + * + * The API uses the standard RtNetlink socket. When the RtNetlink code + * find a IFLA_WIRELESS field in a RtNetlink SET_LINK request, + * it calls here. + */ + +#ifdef CONFIG_NET_WIRELESS_RTNETLINK +/* ---------------------------------------------------------------- */ +/* + * Wrapper to call a standard Wireless Extension GET handler. + * We do various checks and call the handler with the proper args. + */ +static int rtnetlink_standard_get(struct net_device * dev, + struct iw_event * request, + int request_len, + iw_handler handler, + char ** p_buf, + int * p_len) +{ + const struct iw_ioctl_description * descr = NULL; + unsigned int cmd; + union iwreq_data * wrqu; + int hdr_len; + struct iw_request_info info; + char * buffer = NULL; + int buffer_size = 0; + int ret = -EINVAL; + + /* Get the description of the Request */ + cmd = request->cmd; + if((cmd - SIOCIWFIRST) >= standard_ioctl_num) + return -EOPNOTSUPP; + descr = &(standard_ioctl[cmd - SIOCIWFIRST]); + +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG "%s (WE.r) : Found standard handler for 0x%04X\n", + dev->name, cmd); + printk(KERN_DEBUG "%s (WE.r) : Header type : %d, Token type : %d, size : %d, token : %d\n", dev->name, descr->header_type, descr->token_type, descr->token_size, descr->max_tokens); +#endif /* WE_RTNETLINK_DEBUG */ + + /* Check if wrqu is complete */ + hdr_len = event_type_size[descr->header_type]; + if(request_len < hdr_len) { +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG + "%s (WE.r) : Wireless request too short (%d)\n", + dev->name, request_len); +#endif /* WE_RTNETLINK_DEBUG */ + return -EINVAL; + } + + /* Prepare the call */ + info.cmd = cmd; + info.flags = 0; + + /* Check if we have extra data in the reply or not */ + if(descr->header_type != IW_HEADER_TYPE_POINT) { + + /* Create the kernel buffer that we will return. + * It's at an offset to match the TYPE_POINT case... */ + buffer_size = request_len + IW_EV_POINT_OFF; + buffer = kmalloc(buffer_size, GFP_KERNEL); + if (buffer == NULL) { + return -ENOMEM; + } + /* Copy event data */ + memcpy(buffer + IW_EV_POINT_OFF, request, request_len); + /* Use our own copy of wrqu */ + wrqu = (union iwreq_data *) (buffer + IW_EV_POINT_OFF + + IW_EV_LCP_LEN); + + /* No extra arguments. Trivial to handle */ + ret = handler(dev, &info, wrqu, NULL); + + } else { + union iwreq_data wrqu_point; + char * extra = NULL; + int extra_size = 0; + + /* Get a temp copy of wrqu (skip pointer) */ + memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF, + ((char *) request) + IW_EV_LCP_LEN, + IW_EV_POINT_LEN - IW_EV_LCP_LEN); + + /* Calculate space needed by arguments. Always allocate + * for max space. Easier, and won't last long... */ + extra_size = descr->max_tokens * descr->token_size; + /* Support for very large requests */ + if((descr->flags & IW_DESCR_FLAG_NOMAX) && + (wrqu_point.data.length > descr->max_tokens)) + extra_size = (wrqu_point.data.length + * descr->token_size); + buffer_size = extra_size + IW_EV_POINT_LEN + IW_EV_POINT_OFF; +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes (%d bytes)\n", + dev->name, extra_size, buffer_size); +#endif /* WE_RTNETLINK_DEBUG */ + + /* Create the kernel buffer that we will return */ + buffer = kmalloc(buffer_size, GFP_KERNEL); + if (buffer == NULL) { + return -ENOMEM; + } + + /* Put wrqu in the right place (just before extra). + * Leave space for IWE header and dummy pointer... + * Note that IW_EV_LCP_LEN==4 bytes, so it's still aligned... + */ + memcpy(buffer + IW_EV_LCP_LEN + IW_EV_POINT_OFF, + ((char *) &wrqu_point) + IW_EV_POINT_OFF, + IW_EV_POINT_LEN - IW_EV_LCP_LEN); + wrqu = (union iwreq_data *) (buffer + IW_EV_LCP_LEN); + + /* Extra comes logically after that. Offset +12 bytes. */ + extra = buffer + IW_EV_POINT_OFF + IW_EV_POINT_LEN; + + /* Call the handler */ + ret = handler(dev, &info, wrqu, extra); + + /* Calculate real returned length */ + extra_size = (wrqu->data.length * descr->token_size); + /* Re-adjust reply size */ + request->len = extra_size + IW_EV_POINT_LEN; + + /* Put the iwe header where it should, i.e. scrap the + * dummy pointer. */ + memcpy(buffer + IW_EV_POINT_OFF, request, IW_EV_LCP_LEN); + +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG "%s (WE.r) : Reply 0x%04X, hdr_len %d, tokens %d, extra_size %d, buffer_size %d\n", dev->name, cmd, hdr_len, wrqu->data.length, extra_size, buffer_size); +#endif /* WE_RTNETLINK_DEBUG */ + + /* Check if there is enough buffer up there */ + if(wrqu_point.data.length < wrqu->data.length) + ret = -E2BIG; + } + + /* Return the buffer to the caller */ + if (!ret) { + *p_buf = buffer; + *p_len = request->len; + } else { + /* Cleanup */ + if(buffer) + kfree(buffer); + } + + return ret; +} + +/* ---------------------------------------------------------------- */ +/* + * Wrapper to call a standard Wireless Extension SET handler. + * We do various checks and call the handler with the proper args. + */ +static inline int rtnetlink_standard_set(struct net_device * dev, + struct iw_event * request, + int request_len, + iw_handler handler) +{ + const struct iw_ioctl_description * descr = NULL; + unsigned int cmd; + union iwreq_data * wrqu; + union iwreq_data wrqu_point; + int hdr_len; + char * extra = NULL; + int extra_size = 0; + struct iw_request_info info; + int ret = -EINVAL; + + /* Get the description of the Request */ + cmd = request->cmd; + if((cmd - SIOCIWFIRST) >= standard_ioctl_num) + return -EOPNOTSUPP; + descr = &(standard_ioctl[cmd - SIOCIWFIRST]); + +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG "%s (WE.r) : Found standard SET handler for 0x%04X\n", + dev->name, cmd); + printk(KERN_DEBUG "%s (WE.r) : Header type : %d, Token type : %d, size : %d, token : %d\n", dev->name, descr->header_type, descr->token_type, descr->token_size, descr->max_tokens); +#endif /* WE_RTNETLINK_DEBUG */ + + /* Extract fixed header from request. This is properly aligned. */ + wrqu = &request->u; + + /* Check if wrqu is complete */ + hdr_len = event_type_size[descr->header_type]; + if(request_len < hdr_len) { +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG + "%s (WE.r) : Wireless request too short (%d)\n", + dev->name, request_len); +#endif /* WE_RTNETLINK_DEBUG */ + return -EINVAL; + } + + /* Prepare the call */ + info.cmd = cmd; + info.flags = 0; + + /* Check if we have extra data in the request or not */ + if(descr->header_type != IW_HEADER_TYPE_POINT) { + + /* No extra arguments. Trivial to handle */ + ret = handler(dev, &info, wrqu, NULL); + + } else { + int extra_len; + + /* Put wrqu in the right place (skip pointer) */ + memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF, + wrqu, IW_EV_POINT_LEN - IW_EV_LCP_LEN); + /* Don't forget about the event code... */ + wrqu = &wrqu_point; + + /* Check if number of token fits within bounds */ + if(wrqu_point.data.length > descr->max_tokens) + return -E2BIG; + if(wrqu_point.data.length < descr->min_tokens) + return -EINVAL; + + /* Real length of payload */ + extra_len = wrqu_point.data.length * descr->token_size; + + /* Check if request is self consistent */ + if((request_len - hdr_len) < extra_len) { +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG "%s (WE.r) : Wireless request data too short (%d)\n", + dev->name, extra_size); +#endif /* WE_RTNETLINK_DEBUG */ + return -EINVAL; + } + +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes\n", + dev->name, extra_size); +#endif /* WE_RTNETLINK_DEBUG */ + + /* Always allocate for max space. Easier, and won't last + * long... */ + extra_size = descr->max_tokens * descr->token_size; + extra = kmalloc(extra_size, GFP_KERNEL); + if (extra == NULL) + return -ENOMEM; + + /* Copy extra in aligned buffer */ + memcpy(extra, ((char *) request) + hdr_len, extra_len); + + /* Call the handler */ + ret = handler(dev, &info, &wrqu_point, extra); + } + +#ifdef WE_SET_EVENT + /* Generate an event to notify listeners of the change */ + if((descr->flags & IW_DESCR_FLAG_EVENT) && + ((ret == 0) || (ret == -EIWCOMMIT))) { + if(descr->flags & IW_DESCR_FLAG_RESTRICT) + /* If the event is restricted, don't + * export the payload */ + wireless_send_event(dev, cmd, wrqu, NULL); + else + wireless_send_event(dev, cmd, wrqu, extra); + } +#endif /* WE_SET_EVENT */ + + /* Cleanup - I told you it wasn't that long ;-) */ + if(extra) + kfree(extra); + + /* Call commit handler if needed and defined */ + if(ret == -EIWCOMMIT) + ret = call_commit_handler(dev); + + return ret; +} + +/* ---------------------------------------------------------------- */ +/* + * Wrapper to call a private Wireless Extension GET handler. + * Same as above... + * It's not as nice and slimline as the standard wrapper. The cause + * is struct iw_priv_args, which was not really designed for the + * job we are going here. + * + * IMPORTANT : This function prevent to set and get data on the same + * IOCTL and enforce the SET/GET convention. Not doing it would be + * far too hairy... + * If you need to set and get data at the same time, please don't use + * a iw_handler but process it in your ioctl handler (i.e. use the + * old driver API). + */ +static inline int rtnetlink_private_get(struct net_device * dev, + struct iw_event * request, + int request_len, + iw_handler handler, + char ** p_buf, + int * p_len) +{ + const struct iw_priv_args * descr = NULL; + unsigned int cmd; + union iwreq_data * wrqu; + int hdr_len; + struct iw_request_info info; + int extra_size = 0; + int i; + char * buffer = NULL; + int buffer_size = 0; + int ret = -EINVAL; + + /* Get the description of the Request */ + cmd = request->cmd; + for(i = 0; i < dev->wireless_handlers->num_private_args; i++) + if(cmd == dev->wireless_handlers->private_args[i].cmd) { + descr = &(dev->wireless_handlers->private_args[i]); + break; + } + if(descr == NULL) + return -EOPNOTSUPP; + +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG "%s (WE.r) : Found private handler for 0x%04X\n", + dev->name, cmd); + printk(KERN_DEBUG "%s (WE.r) : Name %s, set %X, get %X\n", + dev->name, descr->name, descr->set_args, descr->get_args); +#endif /* WE_RTNETLINK_DEBUG */ + + /* Compute the max size of the get arguments */ + extra_size = get_priv_size(descr->get_args); + + /* Does it fits in wrqu ? */ + if((descr->get_args & IW_PRIV_SIZE_FIXED) && + (extra_size <= IFNAMSIZ)) { + hdr_len = extra_size; + extra_size = 0; + } else { + hdr_len = IW_EV_POINT_LEN; + } + + /* Check if wrqu is complete */ + if(request_len < hdr_len) { +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG + "%s (WE.r) : Wireless request too short (%d)\n", + dev->name, request_len); +#endif /* WE_RTNETLINK_DEBUG */ + return -EINVAL; + } + + /* Prepare the call */ + info.cmd = cmd; + info.flags = 0; + + /* Check if we have a pointer to user space data or not. */ + if(extra_size == 0) { + + /* Create the kernel buffer that we will return. + * It's at an offset to match the TYPE_POINT case... */ + buffer_size = request_len + IW_EV_POINT_OFF; + buffer = kmalloc(buffer_size, GFP_KERNEL); + if (buffer == NULL) { + return -ENOMEM; + } + /* Copy event data */ + memcpy(buffer + IW_EV_POINT_OFF, request, request_len); + /* Use our own copy of wrqu */ + wrqu = (union iwreq_data *) (buffer + IW_EV_POINT_OFF + + IW_EV_LCP_LEN); + + /* No extra arguments. Trivial to handle */ + ret = handler(dev, &info, wrqu, (char *) wrqu); + + } else { + char * extra; + + /* Buffer for full reply */ + buffer_size = extra_size + IW_EV_POINT_LEN + IW_EV_POINT_OFF; + +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes (%d bytes)\n", + dev->name, extra_size, buffer_size); +#endif /* WE_RTNETLINK_DEBUG */ + + /* Create the kernel buffer that we will return */ + buffer = kmalloc(buffer_size, GFP_KERNEL); + if (buffer == NULL) { + return -ENOMEM; + } + + /* Put wrqu in the right place (just before extra). + * Leave space for IWE header and dummy pointer... + * Note that IW_EV_LCP_LEN==4 bytes, so it's still aligned... + */ + memcpy(buffer + IW_EV_LCP_LEN + IW_EV_POINT_OFF, + ((char *) request) + IW_EV_LCP_LEN, + IW_EV_POINT_LEN - IW_EV_LCP_LEN); + wrqu = (union iwreq_data *) (buffer + IW_EV_LCP_LEN); + + /* Extra comes logically after that. Offset +12 bytes. */ + extra = buffer + IW_EV_POINT_OFF + IW_EV_POINT_LEN; + + /* Call the handler */ + ret = handler(dev, &info, wrqu, extra); + + /* Adjust for the actual length if it's variable, + * avoid leaking kernel bits outside. */ + if (!(descr->get_args & IW_PRIV_SIZE_FIXED)) + extra_size = adjust_priv_size(descr->get_args, wrqu); + /* Re-adjust reply size */ + request->len = extra_size + IW_EV_POINT_LEN; + + /* Put the iwe header where it should, i.e. scrap the + * dummy pointer. */ + memcpy(buffer + IW_EV_POINT_OFF, request, IW_EV_LCP_LEN); + +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG "%s (WE.r) : Reply 0x%04X, hdr_len %d, tokens %d, extra_size %d, buffer_size %d\n", dev->name, cmd, hdr_len, wrqu->data.length, extra_size, buffer_size); +#endif /* WE_RTNETLINK_DEBUG */ + } + + /* Return the buffer to the caller */ + if (!ret) { + *p_buf = buffer; + *p_len = request->len; + } else { + /* Cleanup */ + if(buffer) + kfree(buffer); + } + + return ret; +} + +/* ---------------------------------------------------------------- */ +/* + * Wrapper to call a private Wireless Extension SET handler. + * Same as above... + * It's not as nice and slimline as the standard wrapper. The cause + * is struct iw_priv_args, which was not really designed for the + * job we are going here. + * + * IMPORTANT : This function prevent to set and get data on the same + * IOCTL and enforce the SET/GET convention. Not doing it would be + * far too hairy... + * If you need to set and get data at the same time, please don't use + * a iw_handler but process it in your ioctl handler (i.e. use the + * old driver API). + */ +static inline int rtnetlink_private_set(struct net_device * dev, + struct iw_event * request, + int request_len, + iw_handler handler) +{ + const struct iw_priv_args * descr = NULL; + unsigned int cmd; + union iwreq_data * wrqu; + union iwreq_data wrqu_point; + int hdr_len; + char * extra = NULL; + int extra_size = 0; + int offset = 0; /* For sub-ioctls */ + struct iw_request_info info; + int i; + int ret = -EINVAL; + + /* Get the description of the Request */ + cmd = request->cmd; + for(i = 0; i < dev->wireless_handlers->num_private_args; i++) + if(cmd == dev->wireless_handlers->private_args[i].cmd) { + descr = &(dev->wireless_handlers->private_args[i]); + break; + } + if(descr == NULL) + return -EOPNOTSUPP; + +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG "%s (WE.r) : Found private handler for 0x%04X\n", + ifr->ifr_name, cmd); + printk(KERN_DEBUG "%s (WE.r) : Name %s, set %X, get %X\n", + dev->name, descr->name, descr->set_args, descr->get_args); +#endif /* WE_RTNETLINK_DEBUG */ + + /* Compute the size of the set arguments */ + /* Check for sub-ioctl handler */ + if(descr->name[0] == '\0') + /* Reserve one int for sub-ioctl index */ + offset = sizeof(__u32); + + /* Size of set arguments */ + extra_size = get_priv_size(descr->set_args); + + /* Does it fits in wrqu ? */ + if((descr->set_args & IW_PRIV_SIZE_FIXED) && + (extra_size <= IFNAMSIZ)) { + hdr_len = IW_EV_LCP_LEN + extra_size; + extra_size = 0; + } else { + hdr_len = IW_EV_POINT_LEN; + } + + /* Extract fixed header from request. This is properly aligned. */ + wrqu = &request->u; + + /* Check if wrqu is complete */ + if(request_len < hdr_len) { +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG + "%s (WE.r) : Wireless request too short (%d)\n", + dev->name, request_len); +#endif /* WE_RTNETLINK_DEBUG */ + return -EINVAL; + } + + /* Prepare the call */ + info.cmd = cmd; + info.flags = 0; + + /* Check if we have a pointer to user space data or not. */ + if(extra_size == 0) { + + /* No extra arguments. Trivial to handle */ + ret = handler(dev, &info, wrqu, (char *) wrqu); + + } else { + int extra_len; + + /* Put wrqu in the right place (skip pointer) */ + memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF, + wrqu, IW_EV_POINT_LEN - IW_EV_LCP_LEN); + + /* Does it fits within bounds ? */ + if(wrqu_point.data.length > (descr->set_args & + IW_PRIV_SIZE_MASK)) + return -E2BIG; + + /* Real length of payload */ + extra_len = adjust_priv_size(descr->set_args, &wrqu_point); + + /* Check if request is self consistent */ + if((request_len - hdr_len) < extra_len) { +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG "%s (WE.r) : Wireless request data too short (%d)\n", + dev->name, extra_size); +#endif /* WE_RTNETLINK_DEBUG */ + return -EINVAL; + } + +#ifdef WE_RTNETLINK_DEBUG + printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes\n", + dev->name, extra_size); +#endif /* WE_RTNETLINK_DEBUG */ + + /* Always allocate for max space. Easier, and won't last + * long... */ + extra = kmalloc(extra_size, GFP_KERNEL); + if (extra == NULL) + return -ENOMEM; + + /* Copy extra in aligned buffer */ + memcpy(extra, ((char *) request) + hdr_len, extra_len); + + /* Call the handler */ + ret = handler(dev, &info, &wrqu_point, extra); + + /* Cleanup - I told you it wasn't that long ;-) */ + kfree(extra); + } + + /* Call commit handler if needed and defined */ + if(ret == -EIWCOMMIT) + ret = call_commit_handler(dev); + + return ret; +} + +/* ---------------------------------------------------------------- */ +/* + * Main RtNetlink dispatcher. Called from the main networking code + * (do_getlink() in net/core/rtnetlink.c). + * Check the type of Request and call the appropriate wrapper... + */ +int wireless_rtnetlink_get(struct net_device * dev, + char * data, + int len, + char ** p_buf, + int * p_len) +{ + struct iw_event * request = (struct iw_event *) data; + iw_handler handler; + + /* Check length */ + if(len < IW_EV_LCP_LEN) { + printk(KERN_DEBUG "%s (WE.r) : RtNetlink request too short (%d)\n", + dev->name, len); + return -EINVAL; + } + + /* ReCheck length (len may have padding) */ + if(request->len > len) { + printk(KERN_DEBUG "%s (WE.r) : RtNetlink request len invalid (%d-%d)\n", + dev->name, request->len, len); + return -EINVAL; + } + + /* Only accept GET requests in here */ + if(!IW_IS_GET(request->cmd)) + return -EOPNOTSUPP; + + /* Special cases */ + if(request->cmd == SIOCGIWSTATS) + /* Get Wireless Stats */ + return rtnetlink_standard_get(dev, + request, + request->len, + &iw_handler_get_iwstats, + p_buf, p_len); + if(request->cmd == SIOCGIWPRIV) { + /* Check if we have some wireless handlers defined */ + if(dev->wireless_handlers == NULL) + return -EOPNOTSUPP; + /* Get Wireless Stats */ + return rtnetlink_standard_get(dev, + request, + request->len, + &iw_handler_get_private, + p_buf, p_len); + } + + /* Basic check */ + if (!netif_device_present(dev)) + return -ENODEV; + + /* Try to find the handler */ + handler = get_handler(dev, request->cmd); + if(handler != NULL) { + /* Standard and private are not the same */ + if(request->cmd < SIOCIWFIRSTPRIV) + return rtnetlink_standard_get(dev, + request, + request->len, + handler, + p_buf, p_len); + else + return rtnetlink_private_get(dev, + request, + request->len, + handler, + p_buf, p_len); + } + + return -EOPNOTSUPP; +} + +/* ---------------------------------------------------------------- */ +/* + * Main RtNetlink dispatcher. Called from the main networking code + * (do_setlink() in net/core/rtnetlink.c). + * Check the type of Request and call the appropriate wrapper... + */ +int wireless_rtnetlink_set(struct net_device * dev, + char * data, + int len) +{ + struct iw_event * request = (struct iw_event *) data; + iw_handler handler; + + /* Check length */ + if(len < IW_EV_LCP_LEN) { + printk(KERN_DEBUG "%s (WE.r) : RtNetlink request too short (%d)\n", + dev->name, len); + return -EINVAL; + } + + /* ReCheck length (len may have padding) */ + if(request->len > len) { + printk(KERN_DEBUG "%s (WE.r) : RtNetlink request len invalid (%d-%d)\n", + dev->name, request->len, len); + return -EINVAL; + } + + /* Only accept SET requests in here */ + if(!IW_IS_SET(request->cmd)) + return -EOPNOTSUPP; + + /* Basic check */ + if (!netif_device_present(dev)) + return -ENODEV; + + /* New driver API : try to find the handler */ + handler = get_handler(dev, request->cmd); + if(handler != NULL) { + /* Standard and private are not the same */ + if(request->cmd < SIOCIWFIRSTPRIV) + return rtnetlink_standard_set(dev, + request, + request->len, + handler); + else + return rtnetlink_private_set(dev, + request, + request->len, + handler); + } + + return -EOPNOTSUPP; +} +#endif /* CONFIG_NET_WIRELESS_RTNETLINK */ + + /************************* EVENT PROCESSING *************************/ /* * Process events generated by the wireless layer or the driver. * Most often, the event will be propagated through rtnetlink */ -#ifdef WE_EVENT_NETLINK -/* "rtnl" is defined in net/core/rtnetlink.c, but we need it here. - * It is declared in <linux/rtnetlink.h> */ - +#ifdef WE_EVENT_RTNETLINK /* ---------------------------------------------------------------- */ /* * Fill a rtnetlink message with our event data. @@ -1121,12 +1857,11 @@ static inline int rtnetlink_fill_iwinfo(struct sk_buff * skb, r->__ifi_pad = 0; r->ifi_type = dev->type; r->ifi_index = dev->ifindex; - r->ifi_flags = dev->flags; + r->ifi_flags = dev_get_flags(dev); r->ifi_change = 0; /* Wireless changes don't affect those flags */ /* Add the wireless events in the netlink packet */ - RTA_PUT(skb, IFLA_WIRELESS, - event_len, event); + RTA_PUT(skb, IFLA_WIRELESS, event_len, event); nlh->nlmsg_len = skb->tail - b; return skb->len; @@ -1163,7 +1898,7 @@ static inline void rtmsg_iwinfo(struct net_device * dev, NETLINK_CB(skb).dst_group = RTNLGRP_LINK; netlink_broadcast(rtnl, skb, 0, RTNLGRP_LINK, GFP_ATOMIC); } -#endif /* WE_EVENT_NETLINK */ +#endif /* WE_EVENT_RTNETLINK */ /* ---------------------------------------------------------------- */ /* @@ -1255,10 +1990,10 @@ void wireless_send_event(struct net_device * dev, if(extra != NULL) memcpy(((char *) event) + hdr_len, extra, extra_len); -#ifdef WE_EVENT_NETLINK - /* rtnetlink event channel */ +#ifdef WE_EVENT_RTNETLINK + /* Send via the RtNetlink event channel */ rtmsg_iwinfo(dev, (char *) event, event_len); -#endif /* WE_EVENT_NETLINK */ +#endif /* WE_EVENT_RTNETLINK */ /* Cleanup */ kfree(event); diff --git a/net/ieee80211/Kconfig b/net/ieee80211/Kconfig index d18ccba3ea9e..dbb08528ddf5 100644 --- a/net/ieee80211/Kconfig +++ b/net/ieee80211/Kconfig @@ -66,3 +66,4 @@ config IEEE80211_CRYPT_TKIP This can be compiled as a modules and it will be called "ieee80211_crypt_tkip". +source "net/ieee80211/softmac/Kconfig" diff --git a/net/ieee80211/Makefile b/net/ieee80211/Makefile index f988417121da..796a7c76ee48 100644 --- a/net/ieee80211/Makefile +++ b/net/ieee80211/Makefile @@ -10,3 +10,4 @@ ieee80211-objs := \ ieee80211_wx.o \ ieee80211_geo.o +obj-$(CONFIG_IEEE80211_SOFTMAC) += softmac/ diff --git a/net/ieee80211/ieee80211_rx.c b/net/ieee80211/ieee80211_rx.c index a7f2a642a512..604b7b0097bc 100644 --- a/net/ieee80211/ieee80211_rx.c +++ b/net/ieee80211/ieee80211_rx.c @@ -780,6 +780,80 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, return 0; } +/* Filter out unrelated packets, call ieee80211_rx[_mgt] */ +int ieee80211_rx_any(struct ieee80211_device *ieee, + struct sk_buff *skb, struct ieee80211_rx_stats *stats) +{ + struct ieee80211_hdr_4addr *hdr; + int is_packet_for_us; + u16 fc; + + if (ieee->iw_mode == IW_MODE_MONITOR) + return ieee80211_rx(ieee, skb, stats) ? 0 : -EINVAL; + + hdr = (struct ieee80211_hdr_4addr *)skb->data; + fc = le16_to_cpu(hdr->frame_ctl); + + if ((fc & IEEE80211_FCTL_VERS) != 0) + return -EINVAL; + + switch (fc & IEEE80211_FCTL_FTYPE) { + case IEEE80211_FTYPE_MGMT: + ieee80211_rx_mgt(ieee, hdr, stats); + return 0; + case IEEE80211_FTYPE_DATA: + break; + case IEEE80211_FTYPE_CTL: + return 0; + default: + return -EINVAL; + } + + is_packet_for_us = 0; + switch (ieee->iw_mode) { + case IW_MODE_ADHOC: + /* our BSS and not from/to DS */ + if (memcmp(hdr->addr3, ieee->bssid, ETH_ALEN) == 0) + if ((fc & (IEEE80211_FCTL_TODS+IEEE80211_FCTL_FROMDS)) == 0) { + /* promisc: get all */ + if (ieee->dev->flags & IFF_PROMISC) + is_packet_for_us = 1; + /* to us */ + else if (memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN) == 0) + is_packet_for_us = 1; + /* mcast */ + else if (is_multicast_ether_addr(hdr->addr1)) + is_packet_for_us = 1; + } + break; + case IW_MODE_INFRA: + /* our BSS (== from our AP) and from DS */ + if (memcmp(hdr->addr2, ieee->bssid, ETH_ALEN) == 0) + if ((fc & (IEEE80211_FCTL_TODS+IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS) { + /* promisc: get all */ + if (ieee->dev->flags & IFF_PROMISC) + is_packet_for_us = 1; + /* to us */ + else if (memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN) == 0) + is_packet_for_us = 1; + /* mcast */ + else if (is_multicast_ether_addr(hdr->addr1)) { + /* not our own packet bcasted from AP */ + if (memcmp(hdr->addr3, ieee->dev->dev_addr, ETH_ALEN)) + is_packet_for_us = 1; + } + } + break; + default: + /* ? */ + break; + } + + if (is_packet_for_us) + return (ieee80211_rx(ieee, skb, stats) ? 0 : -EINVAL); + return 0; +} + #define MGMT_FRAME_FIXED_PART_LENGTH 0x24 static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 }; diff --git a/net/ieee80211/softmac/Kconfig b/net/ieee80211/softmac/Kconfig new file mode 100644 index 000000000000..6cd9f3427be6 --- /dev/null +++ b/net/ieee80211/softmac/Kconfig @@ -0,0 +1,10 @@ +config IEEE80211_SOFTMAC + tristate "Software MAC add-on to the IEEE 802.11 networking stack" + depends on IEEE80211 && EXPERIMENTAL + ---help--- + This option enables the hardware independent software MAC addon + for the IEEE 802.11 networking stack. + +config IEEE80211_SOFTMAC_DEBUG + bool "Enable full debugging output" + depends on IEEE80211_SOFTMAC diff --git a/net/ieee80211/softmac/Makefile b/net/ieee80211/softmac/Makefile new file mode 100644 index 000000000000..bfcb391bb2c7 --- /dev/null +++ b/net/ieee80211/softmac/Makefile @@ -0,0 +1,9 @@ +obj-$(CONFIG_IEEE80211_SOFTMAC) += ieee80211softmac.o +ieee80211softmac-objs := \ + ieee80211softmac_io.o \ + ieee80211softmac_auth.o \ + ieee80211softmac_module.o \ + ieee80211softmac_scan.o \ + ieee80211softmac_wx.o \ + ieee80211softmac_assoc.o \ + ieee80211softmac_event.o diff --git a/net/ieee80211/softmac/ieee80211softmac_assoc.c b/net/ieee80211/softmac/ieee80211softmac_assoc.c new file mode 100644 index 000000000000..be61de78dfa4 --- /dev/null +++ b/net/ieee80211/softmac/ieee80211softmac_assoc.c @@ -0,0 +1,396 @@ +/* + * This file contains the softmac's association logic. + * + * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net> + * Joseph Jezak <josejx@gentoo.org> + * Larry Finger <Larry.Finger@lwfinger.net> + * Danny van Dyk <kugelfang@gentoo.org> + * Michael Buesch <mbuesch@freenet.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * The full GNU General Public License is included in this distribution in the + * file called COPYING. + */ + +#include "ieee80211softmac_priv.h" + +/* + * Overview + * + * Before you can associate, you have to authenticate. + * + */ + +/* Sends out an association request to the desired AP */ +static void +ieee80211softmac_assoc(struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net) +{ + unsigned long flags; + + /* Switch to correct channel for this network */ + mac->set_channel(mac->dev, net->channel); + + /* Send association request */ + ieee80211softmac_send_mgt_frame(mac, net, IEEE80211_STYPE_ASSOC_REQ, 0); + + dprintk(KERN_INFO PFX "sent association request!\n"); + + /* Change the state to associating */ + spin_lock_irqsave(&mac->lock, flags); + mac->associnfo.associating = 1; + mac->associated = 0; /* just to make sure */ + spin_unlock_irqrestore(&mac->lock, flags); + + /* Set a timer for timeout */ + /* FIXME: make timeout configurable */ + schedule_delayed_work(&mac->associnfo.timeout, 5 * HZ); +} + +void +ieee80211softmac_assoc_timeout(void *d) +{ + struct ieee80211softmac_device *mac = (struct ieee80211softmac_device *)d; + unsigned long flags; + + spin_lock_irqsave(&mac->lock, flags); + /* we might race against ieee80211softmac_handle_assoc_response, + * so make sure only one of us does something */ + if (!mac->associnfo.associating) { + spin_unlock_irqrestore(&mac->lock, flags); + return; + } + mac->associnfo.associating = 0; + mac->associnfo.bssvalid = 0; + mac->associated = 0; + spin_unlock_irqrestore(&mac->lock, flags); + + dprintk(KERN_INFO PFX "assoc request timed out!\n"); + /* FIXME: we need to know the network here. that requires a bit of restructuring */ + ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_TIMEOUT, NULL); +} + +/* Sends out a disassociation request to the desired AP */ +static void +ieee80211softmac_disassoc(struct ieee80211softmac_device *mac, u16 reason) +{ + unsigned long flags; + struct ieee80211softmac_network *found; + + if (mac->associnfo.bssvalid && mac->associated) { + found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid); + if (found) + ieee80211softmac_send_mgt_frame(mac, found, IEEE80211_STYPE_DISASSOC, reason); + } else if (mac->associnfo.associating) { + cancel_delayed_work(&mac->associnfo.timeout); + } + + /* Change our state */ + spin_lock_irqsave(&mac->lock, flags); + /* Do NOT clear bssvalid as that will break ieee80211softmac_assoc_work! */ + mac->associated = 0; + mac->associnfo.associating = 0; + spin_unlock_irqrestore(&mac->lock, flags); +} + +static inline int +we_support_all_basic_rates(struct ieee80211softmac_device *mac, u8 *from, u8 from_len) +{ + int idx, search, found; + u8 rate, search_rate; + + for (idx = 0; idx < (from_len); idx++) { + rate = (from)[idx]; + if (!(rate & IEEE80211_BASIC_RATE_MASK)) + continue; + found = 0; + rate &= ~IEEE80211_BASIC_RATE_MASK; + for (search = 0; search < mac->ratesinfo.count; search++) { + search_rate = mac->ratesinfo.rates[search]; + search_rate &= ~IEEE80211_BASIC_RATE_MASK; + if (rate == search_rate) { + found = 1; + break; + } + } + if (!found) + return 0; + } + return 1; +} + +static int +network_matches_request(struct ieee80211softmac_device *mac, struct ieee80211_network *net) +{ + /* we cannot associate to networks whose name we don't know */ + if (ieee80211_is_empty_essid(net->ssid, net->ssid_len)) + return 0; + /* do not associate to a network whose BSSBasicRateSet we cannot support */ + if (!we_support_all_basic_rates(mac, net->rates, net->rates_len)) + return 0; + /* do we really need to check the ex rates? */ + if (!we_support_all_basic_rates(mac, net->rates_ex, net->rates_ex_len)) + return 0; + + /* if 'ANY' network requested, take any that doesn't have privacy enabled */ + if (mac->associnfo.req_essid.len == 0 + && !(net->capability & WLAN_CAPABILITY_PRIVACY)) + return 1; + if (net->ssid_len != mac->associnfo.req_essid.len) + return 0; + if (!memcmp(net->ssid, mac->associnfo.req_essid.data, mac->associnfo.req_essid.len)) + return 1; + return 0; +} + +static void +ieee80211softmac_assoc_notify(struct net_device *dev, void *context) +{ + struct ieee80211softmac_device *mac = ieee80211_priv(dev); + ieee80211softmac_assoc_work((void*)mac); +} + +/* This function is called to handle userspace requests (asynchronously) */ +void +ieee80211softmac_assoc_work(void *d) +{ + struct ieee80211softmac_device *mac = (struct ieee80211softmac_device *)d; + struct ieee80211softmac_network *found = NULL; + struct ieee80211_network *net = NULL, *best = NULL; + unsigned long flags; + + /* meh */ + if (mac->associated) + ieee80211softmac_disassoc(mac, WLAN_REASON_DISASSOC_STA_HAS_LEFT); + + /* try to find the requested network in our list, if we found one already */ + if (mac->associnfo.bssvalid) + found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid); + + /* Search the ieee80211 networks for this network if we didn't find it by bssid, + * but only if we've scanned at least once (to get a better list of networks to + * select from). If we have not scanned before, the !found logic below will be + * invoked and will scan. */ + if (!found && (mac->associnfo.scan_retry < IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT)) + { + s8 rssi = -128; /* if I don't initialise, gcc emits an invalid warning + because it cannot follow the best pointer logic. */ + spin_lock_irqsave(&mac->ieee->lock, flags); + list_for_each_entry(net, &mac->ieee->network_list, list) { + /* we're supposed to find the network with + * the best signal here, as we're asked to join + * any network with a specific ESSID, and many + * different ones could have that. + * + * I'll for now just go with the reported rssi. + * + * We also should take into account the rateset + * here to find the best BSSID to try. + */ + if (network_matches_request(mac, net)) { + if (!best) { + best = net; + rssi = best->stats.rssi; + continue; + } + /* we already had a matching network, so + * compare their properties to get the + * better of the two ... (see above) + */ + if (rssi < net->stats.rssi) { + best = net; + rssi = best->stats.rssi; + } + } + } + /* if we unlock here, we might get interrupted and the `best' + * pointer could go stale */ + if (best) { + found = ieee80211softmac_create_network(mac, best); + /* if found is still NULL, then we got -ENOMEM somewhere */ + if (found) + ieee80211softmac_add_network(mac, found); + } + spin_unlock_irqrestore(&mac->ieee->lock, flags); + } + + if (!found) { + if (mac->associnfo.scan_retry > 0) { + spin_lock_irqsave(&mac->lock, flags); + mac->associnfo.scan_retry--; + spin_unlock_irqrestore(&mac->lock, flags); + + /* We know of no such network. Let's scan. + * NB: this also happens if we had no memory to copy the network info... + * Maybe we can hope to have more memory after scanning finishes ;) + */ + dprintk(KERN_INFO PFX "Associate: Scanning for networks first.\n"); + ieee80211softmac_notify(mac->dev, IEEE80211SOFTMAC_EVENT_SCAN_FINISHED, ieee80211softmac_assoc_notify, NULL); + if (ieee80211softmac_start_scan(mac)) + dprintk(KERN_INFO PFX "Associate: failed to initiate scan. Is device up?\n"); + return; + } + else { + spin_lock_irqsave(&mac->lock, flags); + mac->associnfo.associating = 0; + mac->associated = 0; + spin_unlock_irqrestore(&mac->lock, flags); + + dprintk(KERN_INFO PFX "Unable to find matching network after scan!\n"); + ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_NET_NOT_FOUND, NULL); + return; + } + } + + mac->associnfo.bssvalid = 1; + memcpy(mac->associnfo.bssid, found->bssid, ETH_ALEN); + /* copy the ESSID for displaying it */ + mac->associnfo.associate_essid.len = found->essid.len; + memcpy(mac->associnfo.associate_essid.data, found->essid.data, IW_ESSID_MAX_SIZE + 1); + + /* we found a network! authenticate (if necessary) and associate to it. */ + if (!found->authenticated) { + /* This relies on the fact that _auth_req only queues the work, + * otherwise adding the notification would be racy. */ + if (!ieee80211softmac_auth_req(mac, found)) { + dprintk(KERN_INFO PFX "cannot associate without being authenticated, requested authentication\n"); + ieee80211softmac_notify_internal(mac, IEEE80211SOFTMAC_EVENT_ANY, found, ieee80211softmac_assoc_notify, NULL, GFP_KERNEL); + } else { + printkl(KERN_WARNING PFX "Not authenticated, but requesting authentication failed. Giving up to associate\n"); + ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_FAILED, found); + } + return; + } + /* finally! now we can start associating */ + ieee80211softmac_assoc(mac, found); +} + +/* call this to do whatever is necessary when we're associated */ +static void +ieee80211softmac_associated(struct ieee80211softmac_device *mac, + struct ieee80211_assoc_response * resp, + struct ieee80211softmac_network *net) +{ + mac->associnfo.associating = 0; + mac->associated = 1; + if (mac->set_bssid_filter) + mac->set_bssid_filter(mac->dev, net->bssid); + memcpy(mac->ieee->bssid, net->bssid, ETH_ALEN); + netif_carrier_on(mac->dev); + + mac->association_id = le16_to_cpup(&resp->aid); +} + +/* received frame handling functions */ +int +ieee80211softmac_handle_assoc_response(struct net_device * dev, + struct ieee80211_assoc_response * resp, + struct ieee80211_network * _ieee80211_network_do_not_use) +{ + /* NOTE: the network parameter has to be ignored by + * this code because it is the ieee80211's pointer + * to the struct, not ours (we made a copy) + */ + struct ieee80211softmac_device *mac = ieee80211_priv(dev); + u16 status = le16_to_cpup(&resp->status); + struct ieee80211softmac_network *network = NULL; + unsigned long flags; + + spin_lock_irqsave(&mac->lock, flags); + + if (!mac->associnfo.associating) { + /* we race against the timeout function, so make sure + * only one of us can do work */ + spin_unlock_irqrestore(&mac->lock, flags); + return 0; + } + network = ieee80211softmac_get_network_by_bssid_locked(mac, resp->header.addr3); + + /* someone sending us things without us knowing him? Ignore. */ + if (!network) { + dprintk(KERN_INFO PFX "Received unrequested assocation response from " MAC_FMT "\n", MAC_ARG(resp->header.addr3)); + spin_unlock_irqrestore(&mac->lock, flags); + return 0; + } + + /* now that we know it was for us, we can cancel the timeout */ + cancel_delayed_work(&mac->associnfo.timeout); + + switch (status) { + case 0: + dprintk(KERN_INFO PFX "associated!\n"); + ieee80211softmac_associated(mac, resp, network); + ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATED, network); + break; + case WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH: + if (!network->auth_desynced_once) { + /* there seem to be a few rare cases where our view of + * the world is obscured, or buggy APs that don't DEAUTH + * us properly. So we handle that, but allow it only once. + */ + printkl(KERN_INFO PFX "We were not authenticated during association, retrying...\n"); + network->authenticated = 0; + /* we don't want to do this more than once ... */ + network->auth_desynced_once = 1; + schedule_work(&mac->associnfo.work); + break; + } + default: + dprintk(KERN_INFO PFX "associating failed (reason: 0x%x)!\n", status); + mac->associnfo.associating = 0; + mac->associnfo.bssvalid = 0; + mac->associated = 0; + ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_FAILED, network); + } + + spin_unlock_irqrestore(&mac->lock, flags); + return 0; +} + +int +ieee80211softmac_handle_disassoc(struct net_device * dev, + struct ieee80211_disassoc *disassoc) +{ + struct ieee80211softmac_device *mac = ieee80211_priv(dev); + unsigned long flags; + if (memcmp(disassoc->header.addr2, mac->associnfo.bssid, ETH_ALEN)) + return 0; + if (memcmp(disassoc->header.addr1, mac->dev->dev_addr, ETH_ALEN)) + return 0; + dprintk(KERN_INFO PFX "got disassoc frame\n"); + netif_carrier_off(dev); + spin_lock_irqsave(&mac->lock, flags); + mac->associnfo.bssvalid = 0; + mac->associated = 0; + schedule_work(&mac->associnfo.work); + spin_unlock_irqrestore(&mac->lock, flags); + + return 0; +} + +int +ieee80211softmac_handle_reassoc_req(struct net_device * dev, + struct ieee80211_reassoc_request * resp) +{ + struct ieee80211softmac_device *mac = ieee80211_priv(dev); + struct ieee80211softmac_network *network; + + network = ieee80211softmac_get_network_by_bssid(mac, resp->header.addr3); + if (!network) { + dprintkl(KERN_INFO PFX "reassoc request from unknown network\n"); + return 0; + } + ieee80211softmac_assoc(mac, network); + return 0; +} diff --git a/net/ieee80211/softmac/ieee80211softmac_auth.c b/net/ieee80211/softmac/ieee80211softmac_auth.c new file mode 100644 index 000000000000..9a0eac6c61eb --- /dev/null +++ b/net/ieee80211/softmac/ieee80211softmac_auth.c @@ -0,0 +1,364 @@ +/* + * This file contains the softmac's authentication logic. + * + * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net> + * Joseph Jezak <josejx@gentoo.org> + * Larry Finger <Larry.Finger@lwfinger.net> + * Danny van Dyk <kugelfang@gentoo.org> + * Michael Buesch <mbuesch@freenet.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * The full GNU General Public License is included in this distribution in the + * file called COPYING. + */ + +#include "ieee80211softmac_priv.h" + +static void ieee80211softmac_auth_queue(void *data); + +/* Queues an auth request to the desired AP */ +int +ieee80211softmac_auth_req(struct ieee80211softmac_device *mac, + struct ieee80211softmac_network *net) +{ + struct ieee80211softmac_auth_queue_item *auth; + unsigned long flags; + + if (net->authenticating) + return 0; + + /* Add the network if it's not already added */ + ieee80211softmac_add_network(mac, net); + + dprintk(KERN_NOTICE PFX "Queueing Authentication Request to "MAC_FMT"\n", MAC_ARG(net->bssid)); + /* Queue the auth request */ + auth = (struct ieee80211softmac_auth_queue_item *) + kmalloc(sizeof(struct ieee80211softmac_auth_queue_item), GFP_KERNEL); + if(auth == NULL) + return -ENOMEM; + + auth->net = net; + auth->mac = mac; + auth->retry = IEEE80211SOFTMAC_AUTH_RETRY_LIMIT; + auth->state = IEEE80211SOFTMAC_AUTH_OPEN_REQUEST; + INIT_WORK(&auth->work, &ieee80211softmac_auth_queue, (void *)auth); + + /* Lock (for list) */ + spin_lock_irqsave(&mac->lock, flags); + + /* add to list */ + list_add_tail(&auth->list, &mac->auth_queue); + schedule_work(&auth->work); + spin_unlock_irqrestore(&mac->lock, flags); + + return 0; +} + + +/* Sends an auth request to the desired AP and handles timeouts */ +static void +ieee80211softmac_auth_queue(void *data) +{ + struct ieee80211softmac_device *mac; + struct ieee80211softmac_auth_queue_item *auth; + struct ieee80211softmac_network *net; + unsigned long flags; + + auth = (struct ieee80211softmac_auth_queue_item *)data; + net = auth->net; + mac = auth->mac; + + if(auth->retry > 0) { + /* Switch to correct channel for this network */ + mac->set_channel(mac->dev, net->channel); + + /* Lock and set flags */ + spin_lock_irqsave(&mac->lock, flags); + net->authenticated = 0; + net->authenticating = 1; + /* add a timeout call so we eventually give up waiting for an auth reply */ + schedule_delayed_work(&auth->work, IEEE80211SOFTMAC_AUTH_TIMEOUT); + auth->retry--; + spin_unlock_irqrestore(&mac->lock, flags); + if (ieee80211softmac_send_mgt_frame(mac, auth->net, IEEE80211_STYPE_AUTH, auth->state)) + dprintk(KERN_NOTICE PFX "Sending Authentication Request to "MAC_FMT" failed (this shouldn't happen, wait for the timeout).\n", MAC_ARG(net->bssid)); + else + dprintk(KERN_NOTICE PFX "Sent Authentication Request to "MAC_FMT".\n", MAC_ARG(net->bssid)); + return; + } + + printkl(KERN_WARNING PFX "Authentication timed out with "MAC_FMT"\n", MAC_ARG(net->bssid)); + /* Remove this item from the queue */ + spin_lock_irqsave(&mac->lock, flags); + ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_AUTH_TIMEOUT, net); + cancel_delayed_work(&auth->work); /* just to make sure... */ + list_del(&auth->list); + spin_unlock_irqrestore(&mac->lock, flags); + /* Free it */ + kfree(auth); +} + +/* Handle the auth response from the AP + * This should be registered with ieee80211 as handle_auth + */ +int +ieee80211softmac_auth_resp(struct net_device *dev, struct ieee80211_auth *auth) +{ + + struct list_head *list_ptr; + struct ieee80211softmac_device *mac = ieee80211_priv(dev); + struct ieee80211softmac_auth_queue_item *aq = NULL; + struct ieee80211softmac_network *net = NULL; + unsigned long flags; + u8 * data; + + /* Find correct auth queue item */ + spin_lock_irqsave(&mac->lock, flags); + list_for_each(list_ptr, &mac->auth_queue) { + aq = list_entry(list_ptr, struct ieee80211softmac_auth_queue_item, list); + net = aq->net; + if (!memcmp(net->bssid, auth->header.addr2, ETH_ALEN)) + break; + else + aq = NULL; + } + spin_unlock_irqrestore(&mac->lock, flags); + + /* Make sure that we've got an auth queue item for this request */ + if(aq == NULL) + { + printkl(KERN_DEBUG PFX "Authentication response received from "MAC_FMT" but no queue item exists.\n", MAC_ARG(auth->header.addr2)); + /* Error #? */ + return -1; + } + + /* Check for out of order authentication */ + if(!net->authenticating) + { + printkl(KERN_DEBUG PFX "Authentication response received from "MAC_FMT" but did not request authentication.\n",MAC_ARG(auth->header.addr2)); + return -1; + } + + /* Parse the auth packet */ + switch(auth->algorithm) { + case WLAN_AUTH_OPEN: + /* Check the status code of the response */ + + switch(auth->status) { + case WLAN_STATUS_SUCCESS: + /* Update the status to Authenticated */ + spin_lock_irqsave(&mac->lock, flags); + net->authenticating = 0; + net->authenticated = 1; + spin_unlock_irqrestore(&mac->lock, flags); + + /* Send event */ + printkl(KERN_NOTICE PFX "Open Authentication completed with "MAC_FMT"\n", MAC_ARG(net->bssid)); + ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_AUTHENTICATED, net); + break; + default: + /* Lock and reset flags */ + spin_lock_irqsave(&mac->lock, flags); + net->authenticated = 0; + net->authenticating = 0; + spin_unlock_irqrestore(&mac->lock, flags); + + printkl(KERN_NOTICE PFX "Open Authentication with "MAC_FMT" failed, error code: %i\n", + MAC_ARG(net->bssid), le16_to_cpup(&auth->status)); + /* Count the error? */ + break; + } + goto free_aq; + break; + case WLAN_AUTH_SHARED_KEY: + /* Figure out where we are in the process */ + switch(auth->transaction) { + case IEEE80211SOFTMAC_AUTH_SHARED_CHALLENGE: + /* Check to make sure we have a challenge IE */ + data = (u8 *)auth->info_element; + if(*data++ != MFIE_TYPE_CHALLENGE){ + printkl(KERN_NOTICE PFX "Shared Key Authentication failed due to a missing challenge.\n"); + break; + } + /* Save the challenge */ + spin_lock_irqsave(&mac->lock, flags); + net->challenge_len = *data++; + if(net->challenge_len > WLAN_AUTH_CHALLENGE_LEN) + net->challenge_len = WLAN_AUTH_CHALLENGE_LEN; + if(net->challenge != NULL) + kfree(net->challenge); + net->challenge = kmalloc(net->challenge_len, GFP_ATOMIC); + memcpy(net->challenge, data, net->challenge_len); + aq->state = IEEE80211SOFTMAC_AUTH_SHARED_RESPONSE; + spin_unlock_irqrestore(&mac->lock, flags); + + /* Switch to correct channel for this network */ + mac->set_channel(mac->dev, net->channel); + + /* Send our response (How to encrypt?) */ + ieee80211softmac_send_mgt_frame(mac, aq->net, IEEE80211_STYPE_AUTH, aq->state); + break; + case IEEE80211SOFTMAC_AUTH_SHARED_PASS: + /* Check the status code of the response */ + switch(auth->status) { + case WLAN_STATUS_SUCCESS: + /* Update the status to Authenticated */ + spin_lock_irqsave(&mac->lock, flags); + net->authenticating = 0; + net->authenticated = 1; + spin_unlock_irqrestore(&mac->lock, flags); + printkl(KERN_NOTICE PFX "Shared Key Authentication completed with "MAC_FMT"\n", + MAC_ARG(net->bssid)); + break; + default: + printkl(KERN_NOTICE PFX "Shared Key Authentication with "MAC_FMT" failed, error code: %i\n", + MAC_ARG(net->bssid), le16_to_cpup(&auth->status)); + /* Lock and reset flags */ + spin_lock_irqsave(&mac->lock, flags); + net->authenticating = 0; + net->authenticated = 0; + spin_unlock_irqrestore(&mac->lock, flags); + /* Count the error? */ + break; + } + goto free_aq; + break; + default: + printkl(KERN_WARNING PFX "Unhandled Authentication Step: %i\n", auth->transaction); + break; + } + goto free_aq; + break; + default: + /* ERROR */ + goto free_aq; + break; + } + return 0; +free_aq: + /* Cancel the timeout */ + spin_lock_irqsave(&mac->lock, flags); + cancel_delayed_work(&aq->work); + /* Remove this item from the queue */ + list_del(&aq->list); + spin_unlock_irqrestore(&mac->lock, flags); + + /* Free it */ + kfree(aq); + return 0; +} + +/* + * Handle deauthorization + */ +static void +ieee80211softmac_deauth_from_net(struct ieee80211softmac_device *mac, + struct ieee80211softmac_network *net) +{ + struct ieee80211softmac_auth_queue_item *aq = NULL; + struct list_head *list_ptr; + unsigned long flags; + + /* Lock and reset status flags */ + spin_lock_irqsave(&mac->lock, flags); + net->authenticating = 0; + net->authenticated = 0; + + /* Find correct auth queue item, if it exists */ + list_for_each(list_ptr, &mac->auth_queue) { + aq = list_entry(list_ptr, struct ieee80211softmac_auth_queue_item, list); + if (!memcmp(net->bssid, aq->net->bssid, ETH_ALEN)) + break; + else + aq = NULL; + } + + /* Cancel pending work */ + if(aq != NULL) + /* Not entirely safe? What about running work? */ + cancel_delayed_work(&aq->work); + + /* Free our network ref */ + ieee80211softmac_del_network_locked(mac, net); + if(net->challenge != NULL) + kfree(net->challenge); + kfree(net); + + /* can't transmit data right now... */ + netif_carrier_off(mac->dev); + /* let's try to re-associate */ + schedule_work(&mac->associnfo.work); + spin_unlock_irqrestore(&mac->lock, flags); +} + +/* + * Sends a deauth request to the desired AP + */ +int +ieee80211softmac_deauth_req(struct ieee80211softmac_device *mac, + struct ieee80211softmac_network *net, int reason) +{ + int ret; + + /* Make sure the network is authenticated */ + if (!net->authenticated) + { + printkl(KERN_DEBUG PFX "Can't send deauthentication packet, network is not authenticated.\n"); + /* Error okay? */ + return -EPERM; + } + + /* Send the de-auth packet */ + if((ret = ieee80211softmac_send_mgt_frame(mac, net, IEEE80211_STYPE_DEAUTH, reason))) + return ret; + + ieee80211softmac_deauth_from_net(mac, net); + return 0; +} + +/* + * This should be registered with ieee80211 as handle_deauth + */ +int +ieee80211softmac_deauth_resp(struct net_device *dev, struct ieee80211_deauth *deauth) +{ + + struct ieee80211softmac_network *net = NULL; + struct ieee80211softmac_device *mac = ieee80211_priv(dev); + + if (!deauth) { + dprintk("deauth without deauth packet. eek!\n"); + return 0; + } + + net = ieee80211softmac_get_network_by_bssid(mac, deauth->header.addr2); + + if (net == NULL) { + printkl(KERN_DEBUG PFX "Received deauthentication packet from "MAC_FMT", but that network is unknown.\n", + MAC_ARG(deauth->header.addr2)); + return 0; + } + + /* Make sure the network is authenticated */ + if(!net->authenticated) + { + printkl(KERN_DEBUG PFX "Can't perform deauthentication, network is not authenticated.\n"); + /* Error okay? */ + return -EPERM; + } + + ieee80211softmac_deauth_from_net(mac, net); + return 0; +} diff --git a/net/ieee80211/softmac/ieee80211softmac_event.c b/net/ieee80211/softmac/ieee80211softmac_event.c new file mode 100644 index 000000000000..0a52bbda1e4c --- /dev/null +++ b/net/ieee80211/softmac/ieee80211softmac_event.c @@ -0,0 +1,159 @@ +/* + * Event system + * Also see comments in public header file and longer explanation below. + * + * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net> + * Joseph Jezak <josejx@gentoo.org> + * Larry Finger <Larry.Finger@lwfinger.net> + * Danny van Dyk <kugelfang@gentoo.org> + * Michael Buesch <mbuesch@freenet.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * The full GNU General Public License is included in this distribution in the + * file called COPYING. + */ + +#include "ieee80211softmac_priv.h" + +/* + * Each event has associated to it + * - an event type (see constants in public header) + * - an event context (see below) + * - the function to be called + * - a context (extra parameter to call the function with) + * - and the softmac struct + * + * The event context is private and can only be used from + * within this module. Its meaning varies with the event + * type: + * SCAN_FINISHED: no special meaning + * ASSOCIATED, + * ASSOCIATE_FAILED, + * ASSOCIATE_TIMEOUT, + * AUTHENTICATED, + * AUTH_FAILED, + * AUTH_TIMEOUT: a pointer to the network struct + * ... + * Code within this module can use the event context to be only + * called when the event is true for that specific context + * as per above table. + * If the event context is NULL, then the notification is always called, + * regardless of the event context. The event context is not passed to + * the callback, it is assumed that the context suffices. + * + * You can also use the event context only by setting the event type + * to -1 (private use only), in which case you'll be notified + * whenever the event context matches. + */ + +static char *event_descriptions[IEEE80211SOFTMAC_EVENT_LAST+1] = { + "scan finished", + "associated", + "associating failed", + "associating timed out", + "authenticated", + "authenticating failed", + "authenticating timed out", + "associating failed because no suitable network was found", +}; + + +static void +ieee80211softmac_notify_callback(void *d) +{ + struct ieee80211softmac_event event = *(struct ieee80211softmac_event*) d; + kfree(d); + + event.fun(event.mac->dev, event.context); +} + +int +ieee80211softmac_notify_internal(struct ieee80211softmac_device *mac, + int event, void *event_context, notify_function_ptr fun, void *context, gfp_t gfp_mask) +{ + struct ieee80211softmac_event *eventptr; + unsigned long flags; + + if (event < -1 || event > IEEE80211SOFTMAC_EVENT_LAST) + return -ENOSYS; + + if (!fun) + return -EINVAL; + + eventptr = kmalloc(sizeof(struct ieee80211softmac_event), gfp_mask); + if (!eventptr) + return -ENOMEM; + + eventptr->event_type = event; + INIT_WORK(&eventptr->work, ieee80211softmac_notify_callback, eventptr); + eventptr->fun = fun; + eventptr->context = context; + eventptr->mac = mac; + eventptr->event_context = event_context; + + spin_lock_irqsave(&mac->lock, flags); + list_add(&eventptr->list, &mac->events); + spin_unlock_irqrestore(&mac->lock, flags); + + return 0; +} + +int +ieee80211softmac_notify_gfp(struct net_device *dev, + int event, notify_function_ptr fun, void *context, gfp_t gfp_mask) +{ + struct ieee80211softmac_device *mac = ieee80211_priv(dev); + + if (event < 0 || event > IEEE80211SOFTMAC_EVENT_LAST) + return -ENOSYS; + + return ieee80211softmac_notify_internal(mac, event, NULL, fun, context, gfp_mask); +} +EXPORT_SYMBOL_GPL(ieee80211softmac_notify_gfp); + +/* private -- calling all callbacks that were specified */ +void +ieee80211softmac_call_events_locked(struct ieee80211softmac_device *mac, int event, void *event_ctx) +{ + struct ieee80211softmac_event *eventptr, *tmp; + union iwreq_data wrqu; + char *msg; + + if (event >= 0) { + msg = event_descriptions[event]; + wrqu.data.length = strlen(msg); + wireless_send_event(mac->dev, IWEVCUSTOM, &wrqu, msg); + } + + if (!list_empty(&mac->events)) + list_for_each_entry_safe(eventptr, tmp, &mac->events, list) { + if ((eventptr->event_type == event || eventptr->event_type == -1) + && (eventptr->event_context == NULL || eventptr->event_context == event_ctx)) { + list_del(&eventptr->list); + schedule_work(&eventptr->work); + } + } +} + +void +ieee80211softmac_call_events(struct ieee80211softmac_device *mac, int event, void *event_ctx) +{ + unsigned long flags; + + spin_lock_irqsave(&mac->lock, flags); + ieee80211softmac_call_events_locked(mac, event, event_ctx); + + spin_unlock_irqrestore(&mac->lock, flags); +} diff --git a/net/ieee80211/softmac/ieee80211softmac_io.c b/net/ieee80211/softmac/ieee80211softmac_io.c new file mode 100644 index 000000000000..febc51dbb412 --- /dev/null +++ b/net/ieee80211/softmac/ieee80211softmac_io.c @@ -0,0 +1,474 @@ +/* + * Some parts based on code from net80211 + * Copyright (c) 2001 Atsushi Onoe + * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "ieee80211softmac_priv.h" + +/* Helper functions for inserting data into the frames */ + +/* + * Adds an ESSID element to the frame + * + */ +static u8 * +ieee80211softmac_add_essid(u8 *dst, struct ieee80211softmac_essid *essid) +{ + if (essid) { + *dst++ = MFIE_TYPE_SSID; + *dst++ = essid->len; + memcpy(dst, essid->data, essid->len); + return dst+essid->len; + } else { + *dst++ = MFIE_TYPE_SSID; + *dst++ = 0; + return dst; + } +} + +/* Adds Supported Rates and if required Extended Rates Information Element + * to the frame, ASSUMES WE HAVE A SORTED LIST OF RATES */ +static u8 * +ieee80211softmac_frame_add_rates(u8 *dst, const struct ieee80211softmac_ratesinfo *r) +{ + int cck_len, ofdm_len; + *dst++ = MFIE_TYPE_RATES; + + for(cck_len=0; ieee80211_is_cck_rate(r->rates[cck_len]) && (cck_len < r->count);cck_len++); + + if(cck_len > IEEE80211SOFTMAC_MAX_RATES_LEN) + cck_len = IEEE80211SOFTMAC_MAX_RATES_LEN; + *dst++ = cck_len; + memcpy(dst, r->rates, cck_len); + dst += cck_len; + + if(cck_len < r->count){ + for (ofdm_len=0; ieee80211_is_ofdm_rate(r->rates[ofdm_len + cck_len]) && (ofdm_len + cck_len < r->count); ofdm_len++); + if (ofdm_len > 0) { + if (ofdm_len > IEEE80211SOFTMAC_MAX_EX_RATES_LEN) + ofdm_len = IEEE80211SOFTMAC_MAX_EX_RATES_LEN; + *dst++ = MFIE_TYPE_RATES_EX; + *dst++ = ofdm_len; + memcpy(dst, r->rates + cck_len, ofdm_len); + dst += ofdm_len; + } + } + return dst; +} + +/* Allocate a management frame */ +static u8 * +ieee80211softmac_alloc_mgt(u32 size) +{ + u8 * data; + + /* Add the header and FCS to the size */ + size = size + IEEE80211_3ADDR_LEN; + if(size > IEEE80211_DATA_LEN) + return NULL; + /* Allocate the frame */ + data = kmalloc(size, GFP_ATOMIC); + memset(data, 0, size); + return data; +} + +/* + * Add a 2 Address Header + */ +static void +ieee80211softmac_hdr_2addr(struct ieee80211softmac_device *mac, + struct ieee80211_hdr_2addr *header, u32 type, u8 *dest) +{ + /* Fill in the frame control flags */ + header->frame_ctl = cpu_to_le16(type); + /* Control packets always have WEP turned off */ + if(type > IEEE80211_STYPE_CFENDACK && type < IEEE80211_STYPE_PSPOLL) + header->frame_ctl |= mac->ieee->sec.level ? cpu_to_le16(IEEE80211_FCTL_PROTECTED) : 0; + + /* Fill in the duration */ + header->duration_id = 0; + /* FIXME: How do I find this? + * calculate. But most drivers just fill in 0 (except if it's a station id of course) */ + + /* Fill in the Destination Address */ + if(dest == NULL) + memset(header->addr1, 0xFF, ETH_ALEN); + else + memcpy(header->addr1, dest, ETH_ALEN); + /* Fill in the Source Address */ + memcpy(header->addr2, mac->ieee->dev->dev_addr, ETH_ALEN); + +} + + +/* Add a 3 Address Header */ +static void +ieee80211softmac_hdr_3addr(struct ieee80211softmac_device *mac, + struct ieee80211_hdr_3addr *header, u32 type, u8 *dest, u8 *bssid) +{ + /* This is common with 2addr, so use that instead */ + ieee80211softmac_hdr_2addr(mac, (struct ieee80211_hdr_2addr *)header, type, dest); + + /* Fill in the BSS ID */ + if(bssid == NULL) + memset(header->addr3, 0xFF, ETH_ALEN); + else + memcpy(header->addr3, bssid, ETH_ALEN); + + /* Fill in the sequence # */ + /* FIXME: I need to add this to the softmac struct + * shouldn't the sequence number be in ieee80211? */ +} + + +/***************************************************************************** + * Create Management packets + *****************************************************************************/ + +/* Creates an association request packet */ +static u32 +ieee80211softmac_assoc_req(struct ieee80211_assoc_request **pkt, + struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net) +{ + u8 *data; + (*pkt) = (struct ieee80211_assoc_request *)ieee80211softmac_alloc_mgt( + 2 + /* Capability Info */ + 2 + /* Listen Interval */ + /* SSID IE */ + 1 + 1 + IW_ESSID_MAX_SIZE + + /* Rates IE */ + 1 + 1 + IEEE80211SOFTMAC_MAX_RATES_LEN + + /* Extended Rates IE */ + 1 + 1 + IEEE80211SOFTMAC_MAX_EX_RATES_LEN + + /* WPA IE if present */ + mac->wpa.IElen + /* Other IE's? Optional? + * Yeah, probably need an extra IE parameter -- lots of vendors like to + * fill in their own IEs */ + ); + if (unlikely((*pkt) == NULL)) + return 0; + ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_ASSOC_REQ, net->bssid, net->bssid); + + /* Fill in capability Info */ + (*pkt)->capability = (mac->ieee->iw_mode == IW_MODE_MASTER) || (mac->ieee->iw_mode == IW_MODE_INFRA) ? + cpu_to_le16(WLAN_CAPABILITY_ESS) : + cpu_to_le16(WLAN_CAPABILITY_IBSS); + /* Need to add this + (*pkt)->capability |= mac->ieee->short_slot ? + cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME) : 0; + */ + (*pkt)->capability |= mac->ieee->sec.level ? cpu_to_le16(WLAN_CAPABILITY_PRIVACY) : 0; + /* Fill in Listen Interval (?) */ + (*pkt)->listen_interval = cpu_to_le16(10); + + data = (u8 *)(*pkt)->info_element; + /* Add SSID */ + data = ieee80211softmac_add_essid(data, &net->essid); + /* Add Rates */ + data = ieee80211softmac_frame_add_rates(data, &mac->ratesinfo); + /* Add WPA IE */ + if (mac->wpa.IElen && mac->wpa.IE) { + memcpy(data, mac->wpa.IE, mac->wpa.IElen); + data += mac->wpa.IElen; + } + /* Return the number of used bytes */ + return (data - (u8*)(*pkt)); +} + +/* Create a reassociation request packet */ +static u32 +ieee80211softmac_reassoc_req(struct ieee80211_reassoc_request **pkt, + struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net) +{ + u8 *data; + (*pkt) = (struct ieee80211_reassoc_request *)ieee80211softmac_alloc_mgt( + 2 + /* Capability Info */ + 2 + /* Listen Interval */ + ETH_ALEN + /* AP MAC */ + /* SSID IE */ + 1 + 1 + IW_ESSID_MAX_SIZE + + /* Rates IE */ + 1 + 1 + IEEE80211SOFTMAC_MAX_RATES_LEN + + /* Extended Rates IE */ + 1 + 1 + IEEE80211SOFTMAC_MAX_EX_RATES_LEN + /* Other IE's? */ + ); + if (unlikely((*pkt) == NULL)) + return 0; + ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_REASSOC_REQ, net->bssid, net->bssid); + + /* Fill in capability Info */ + (*pkt)->capability = mac->ieee->iw_mode == IW_MODE_MASTER ? + cpu_to_le16(WLAN_CAPABILITY_ESS) : + cpu_to_le16(WLAN_CAPABILITY_IBSS); + /* + (*pkt)->capability |= mac->ieee->short_slot ? + cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME) : 0; + */ + (*pkt)->capability |= mac->ieee->sec.level ? + cpu_to_le16(WLAN_CAPABILITY_PRIVACY) : 0; + + /* Fill in Listen Interval (?) */ + (*pkt)->listen_interval = cpu_to_le16(10); + /* Fill in the current AP MAC */ + memcpy((*pkt)->current_ap, mac->ieee->bssid, ETH_ALEN); + + data = (u8 *)(*pkt)->info_element; + /* Add SSID */ + data = ieee80211softmac_add_essid(data, &net->essid); + /* Add Rates */ + data = ieee80211softmac_frame_add_rates(data, &mac->ratesinfo); + /* Return packet size */ + return (data - (u8 *)(*pkt)); +} + +/* Create an authentication packet */ +static u32 +ieee80211softmac_auth(struct ieee80211_auth **pkt, + struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net, + u16 transaction, u16 status) +{ + u8 *data; + /* Allocate Packet */ + (*pkt) = (struct ieee80211_auth *)ieee80211softmac_alloc_mgt( + 2 + /* Auth Algorithm */ + 2 + /* Auth Transaction Seq */ + 2 + /* Status Code */ + /* Challenge Text IE */ + mac->ieee->open_wep ? 0 : + 1 + 1 + WLAN_AUTH_CHALLENGE_LEN + ); + if (unlikely((*pkt) == NULL)) + return 0; + ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_AUTH, net->bssid, net->bssid); + + /* Algorithm */ + (*pkt)->algorithm = mac->ieee->open_wep ? + cpu_to_le16(WLAN_AUTH_OPEN) : + cpu_to_le16(WLAN_AUTH_SHARED_KEY); + /* Transaction */ + (*pkt)->transaction = cpu_to_le16(transaction); + /* Status */ + (*pkt)->status = cpu_to_le16(status); + + data = (u8 *)(*pkt)->info_element; + /* Challenge Text */ + if(!mac->ieee->open_wep){ + *data = MFIE_TYPE_CHALLENGE; + data++; + + /* Copy the challenge in */ + // *data = challenge length + // data += sizeof(u16); + // memcpy(data, challenge, challenge length); + // data += challenge length; + + /* Add the full size to the packet length */ + } + + /* Return the packet size */ + return (data - (u8 *)(*pkt)); +} + +/* Create a disassocation or deauthentication packet */ +static u32 +ieee80211softmac_disassoc_deauth(struct ieee80211_disassoc **pkt, + struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net, + u16 type, u16 reason) +{ + /* Allocate Packet */ + (*pkt) = (struct ieee80211_disassoc *)ieee80211softmac_alloc_mgt(2); + if (unlikely((*pkt) == NULL)) + return 0; + ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), type, net->bssid, net->bssid); + /* Reason */ + (*pkt)->reason = cpu_to_le16(reason); + /* Return the packet size */ + return (2 + IEEE80211_3ADDR_LEN); +} + +/* Create a probe request packet */ +static u32 +ieee80211softmac_probe_req(struct ieee80211_probe_request **pkt, + struct ieee80211softmac_device *mac, struct ieee80211softmac_essid *essid) +{ + u8 *data; + /* Allocate Packet */ + (*pkt) = (struct ieee80211_probe_request *)ieee80211softmac_alloc_mgt( + /* SSID of requested network */ + 1 + 1 + IW_ESSID_MAX_SIZE + + /* Rates IE */ + 1 + 1 + IEEE80211SOFTMAC_MAX_RATES_LEN + + /* Extended Rates IE */ + 1 + 1 + IEEE80211SOFTMAC_MAX_EX_RATES_LEN + ); + if (unlikely((*pkt) == NULL)) + return 0; + ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_PROBE_REQ, NULL, NULL); + + data = (u8 *)(*pkt)->info_element; + /* Add ESSID (can be NULL) */ + data = ieee80211softmac_add_essid(data, essid); + /* Add Rates */ + data = ieee80211softmac_frame_add_rates(data, &mac->ratesinfo); + /* Return packet size */ + return (data - (u8 *)(*pkt)); +} + +/* Create a probe response packet */ +/* FIXME: Not complete */ +static u32 +ieee80211softmac_probe_resp(struct ieee80211_probe_response **pkt, + struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net) +{ + u8 *data; + /* Allocate Packet */ + (*pkt) = (struct ieee80211_probe_response *)ieee80211softmac_alloc_mgt( + 8 + /* Timestamp */ + 2 + /* Beacon Interval */ + 2 + /* Capability Info */ + /* SSID IE */ + 1 + 1 + IW_ESSID_MAX_SIZE + + 7 + /* FH Parameter Set */ + 2 + /* DS Parameter Set */ + 8 + /* CF Parameter Set */ + 4 /* IBSS Parameter Set */ + ); + if (unlikely((*pkt) == NULL)) + return 0; + ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_PROBE_RESP, net->bssid, net->bssid); + data = (u8 *)(*pkt)->info_element; + + /* Return the packet size */ + return (data - (u8 *)(*pkt)); +} + + +/* Sends a manangement packet + * FIXME: document the use of the arg parameter + * for _AUTH: (transaction #) | (status << 16) + */ +int +ieee80211softmac_send_mgt_frame(struct ieee80211softmac_device *mac, + void *ptrarg, u32 type, u32 arg) +{ + void *pkt = NULL; + u32 pkt_size = 0; + + switch(type) { + case IEEE80211_STYPE_ASSOC_REQ: + pkt_size = ieee80211softmac_assoc_req((struct ieee80211_assoc_request **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg); + break; + case IEEE80211_STYPE_REASSOC_REQ: + pkt_size = ieee80211softmac_reassoc_req((struct ieee80211_reassoc_request **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg); + break; + case IEEE80211_STYPE_AUTH: + pkt_size = ieee80211softmac_auth((struct ieee80211_auth **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg, (u16)(arg & 0xFFFF), (u16) (arg >> 16)); + break; + case IEEE80211_STYPE_DISASSOC: + case IEEE80211_STYPE_DEAUTH: + pkt_size = ieee80211softmac_disassoc_deauth((struct ieee80211_disassoc **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg, type, (u16)(arg & 0xFFFF)); + break; + case IEEE80211_STYPE_PROBE_REQ: + pkt_size = ieee80211softmac_probe_req((struct ieee80211_probe_request **)(&pkt), mac, (struct ieee80211softmac_essid *)ptrarg); + break; + case IEEE80211_STYPE_PROBE_RESP: + pkt_size = ieee80211softmac_probe_resp((struct ieee80211_probe_response **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg); + break; + default: + printkl(KERN_DEBUG PFX "Unsupported Management Frame type: %i\n", type); + return -EINVAL; + }; + + if(pkt_size == 0 || pkt == NULL) { + printkl(KERN_DEBUG PFX "Error, packet is nonexistant or 0 length\n"); + return -ENOMEM; + } + + /* Send the packet to the ieee80211 layer for tx */ + /* we defined softmac->mgmt_xmit for this. Should we keep it + * as it is (that means we'd need to wrap this into a txb), + * modify the prototype (so it matches this function), + * or get rid of it alltogether? + * Does this work for you now? + */ + ieee80211_tx_frame(mac->ieee, (struct ieee80211_hdr *)pkt, pkt_size); + + kfree(pkt); + return 0; +} + + +/* Create an rts/cts frame */ +static u32 +ieee80211softmac_rts_cts(struct ieee80211_hdr_2addr **pkt, + struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net, + u32 type) +{ + /* Allocate Packet */ + (*pkt) = kmalloc(IEEE80211_2ADDR_LEN, GFP_ATOMIC); + memset(*pkt, 0, IEEE80211_2ADDR_LEN); + if((*pkt) == NULL) + return 0; + ieee80211softmac_hdr_2addr(mac, (*pkt), type, net->bssid); + return IEEE80211_2ADDR_LEN; +} + + +/* Sends a control packet */ +static int +ieee80211softmac_send_ctl_frame(struct ieee80211softmac_device *mac, + struct ieee80211softmac_network *net, u32 type, u32 arg) +{ + void *pkt = NULL; + u32 pkt_size = 0; + + switch(type) { + case IEEE80211_STYPE_RTS: + case IEEE80211_STYPE_CTS: + pkt_size = ieee80211softmac_rts_cts((struct ieee80211_hdr_2addr **)(&pkt), mac, net, type); + break; + default: + printkl(KERN_DEBUG PFX "Unsupported Control Frame type: %i\n", type); + return -EINVAL; + } + + if(pkt_size == 0) + return -ENOMEM; + + /* Send the packet to the ieee80211 layer for tx */ + ieee80211_tx_frame(mac->ieee, (struct ieee80211_hdr *) pkt, pkt_size); + + kfree(pkt); + return 0; +} diff --git a/net/ieee80211/softmac/ieee80211softmac_module.c b/net/ieee80211/softmac/ieee80211softmac_module.c new file mode 100644 index 000000000000..6f99f781bff8 --- /dev/null +++ b/net/ieee80211/softmac/ieee80211softmac_module.c @@ -0,0 +1,457 @@ +/* + * Contains some basic softmac functions along with module registration code etc. + * + * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net> + * Joseph Jezak <josejx@gentoo.org> + * Larry Finger <Larry.Finger@lwfinger.net> + * Danny van Dyk <kugelfang@gentoo.org> + * Michael Buesch <mbuesch@freenet.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * The full GNU General Public License is included in this distribution in the + * file called COPYING. + */ + +#include "ieee80211softmac_priv.h" +#include <linux/sort.h> + +struct net_device *alloc_ieee80211softmac(int sizeof_priv) +{ + struct ieee80211softmac_device *softmac; + struct net_device *dev; + + dev = alloc_ieee80211(sizeof(struct ieee80211softmac_device) + sizeof_priv); + softmac = ieee80211_priv(dev); + softmac->dev = dev; + softmac->ieee = netdev_priv(dev); + spin_lock_init(&softmac->lock); + + softmac->ieee->handle_auth = ieee80211softmac_auth_resp; + softmac->ieee->handle_deauth = ieee80211softmac_deauth_resp; + softmac->ieee->handle_assoc_response = ieee80211softmac_handle_assoc_response; + softmac->ieee->handle_reassoc_request = ieee80211softmac_handle_reassoc_req; + softmac->ieee->handle_disassoc = ieee80211softmac_handle_disassoc; + softmac->scaninfo = NULL; + + /* TODO: initialise all the other callbacks in the ieee struct + * (once they're written) + */ + + INIT_LIST_HEAD(&softmac->auth_queue); + INIT_LIST_HEAD(&softmac->network_list); + INIT_LIST_HEAD(&softmac->events); + + INIT_WORK(&softmac->associnfo.work, ieee80211softmac_assoc_work, softmac); + INIT_WORK(&softmac->associnfo.timeout, ieee80211softmac_assoc_timeout, softmac); + softmac->start_scan = ieee80211softmac_start_scan_implementation; + softmac->wait_for_scan = ieee80211softmac_wait_for_scan_implementation; + softmac->stop_scan = ieee80211softmac_stop_scan_implementation; + + //TODO: The mcast rate has to be assigned dynamically somewhere (in scanning, association. Not sure...) + // It has to be set to the highest rate all stations in the current network can handle. + softmac->txrates.mcast_rate = IEEE80211_CCK_RATE_1MB; + softmac->txrates.mcast_fallback = IEEE80211_CCK_RATE_1MB; + /* This is reassigned in ieee80211softmac_start to sane values. */ + softmac->txrates.default_rate = IEEE80211_CCK_RATE_1MB; + softmac->txrates.default_fallback = IEEE80211_CCK_RATE_1MB; + + /* to start with, we can't send anything ... */ + netif_carrier_off(dev); + + return dev; +} +EXPORT_SYMBOL_GPL(alloc_ieee80211softmac); + +/* Clears the pending work queue items, stops all scans, etc. */ +void +ieee80211softmac_clear_pending_work(struct ieee80211softmac_device *sm) +{ + unsigned long flags; + struct ieee80211softmac_event *eventptr, *eventtmp; + struct ieee80211softmac_auth_queue_item *authptr, *authtmp; + struct ieee80211softmac_network *netptr, *nettmp; + + ieee80211softmac_stop_scan(sm); + ieee80211softmac_wait_for_scan(sm); + + spin_lock_irqsave(&sm->lock, flags); + /* Free all pending assoc work items */ + cancel_delayed_work(&sm->associnfo.work); + + /* Free all pending scan work items */ + if(sm->scaninfo != NULL) + cancel_delayed_work(&sm->scaninfo->softmac_scan); + + /* Free all pending auth work items */ + list_for_each_entry(authptr, &sm->auth_queue, list) + cancel_delayed_work(&authptr->work); + + /* delete all pending event calls and work items */ + list_for_each_entry_safe(eventptr, eventtmp, &sm->events, list) + cancel_delayed_work(&eventptr->work); + + spin_unlock_irqrestore(&sm->lock, flags); + flush_scheduled_work(); + + /* now we should be save and no longer need locking... */ + spin_lock_irqsave(&sm->lock, flags); + /* Free all pending auth work items */ + list_for_each_entry_safe(authptr, authtmp, &sm->auth_queue, list) { + list_del(&authptr->list); + kfree(authptr); + } + + /* delete all pending event calls and work items */ + list_for_each_entry_safe(eventptr, eventtmp, &sm->events, list) { + list_del(&eventptr->list); + kfree(eventptr); + } + + /* Free all networks */ + list_for_each_entry_safe(netptr, nettmp, &sm->network_list, list) { + ieee80211softmac_del_network_locked(sm, netptr); + if(netptr->challenge != NULL) + kfree(netptr->challenge); + kfree(netptr); + } + + spin_unlock_irqrestore(&sm->lock, flags); +} +EXPORT_SYMBOL_GPL(ieee80211softmac_clear_pending_work); + +void free_ieee80211softmac(struct net_device *dev) +{ + struct ieee80211softmac_device *sm = ieee80211_priv(dev); + ieee80211softmac_clear_pending_work(sm); + kfree(sm->scaninfo); + kfree(sm->wpa.IE); + free_ieee80211(dev); +} +EXPORT_SYMBOL_GPL(free_ieee80211softmac); + +static void ieee80211softmac_start_check_rates(struct ieee80211softmac_device *mac) +{ + struct ieee80211softmac_ratesinfo *ri = &mac->ratesinfo; + /* I took out the sorting check, we're seperating by modulation now. */ + if (ri->count) + return; + /* otherwise assume we hav'em all! */ + if (mac->ieee->modulation & IEEE80211_CCK_MODULATION) { + ri->rates[ri->count++] = IEEE80211_CCK_RATE_1MB; + ri->rates[ri->count++] = IEEE80211_CCK_RATE_2MB; + ri->rates[ri->count++] = IEEE80211_CCK_RATE_5MB; + ri->rates[ri->count++] = IEEE80211_CCK_RATE_11MB; + } + if (mac->ieee->modulation & IEEE80211_OFDM_MODULATION) { + ri->rates[ri->count++] = IEEE80211_OFDM_RATE_6MB; + ri->rates[ri->count++] = IEEE80211_OFDM_RATE_9MB; + ri->rates[ri->count++] = IEEE80211_OFDM_RATE_12MB; + ri->rates[ri->count++] = IEEE80211_OFDM_RATE_18MB; + ri->rates[ri->count++] = IEEE80211_OFDM_RATE_24MB; + ri->rates[ri->count++] = IEEE80211_OFDM_RATE_36MB; + ri->rates[ri->count++] = IEEE80211_OFDM_RATE_48MB; + ri->rates[ri->count++] = IEEE80211_OFDM_RATE_54MB; + } +} + +void ieee80211softmac_start(struct net_device *dev) +{ + struct ieee80211softmac_device *mac = ieee80211_priv(dev); + struct ieee80211_device *ieee = mac->ieee; + u32 change = 0; + struct ieee80211softmac_txrates oldrates; + + ieee80211softmac_start_check_rates(mac); + + /* TODO: We need some kind of state machine to lower the default rates + * if we loose too many packets. + */ + /* Change the default txrate to the highest possible value. + * The txrate machine will lower it, if it is too high. + */ + if (mac->txrates_change) + oldrates = mac->txrates; + if (ieee->modulation & IEEE80211_OFDM_MODULATION) { + mac->txrates.default_rate = IEEE80211_OFDM_RATE_54MB; + change |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT; + mac->txrates.default_fallback = IEEE80211_OFDM_RATE_24MB; + change |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT_FBACK; + } else if (ieee->modulation & IEEE80211_CCK_MODULATION) { + mac->txrates.default_rate = IEEE80211_CCK_RATE_11MB; + change |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT; + mac->txrates.default_fallback = IEEE80211_CCK_RATE_5MB; + change |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT_FBACK; + } else + assert(0); + if (mac->txrates_change) + mac->txrates_change(dev, change, &oldrates); +} +EXPORT_SYMBOL_GPL(ieee80211softmac_start); + +void ieee80211softmac_stop(struct net_device *dev) +{ + struct ieee80211softmac_device *mac = ieee80211_priv(dev); + + ieee80211softmac_clear_pending_work(mac); +} +EXPORT_SYMBOL_GPL(ieee80211softmac_stop); + +void ieee80211softmac_set_rates(struct net_device *dev, u8 count, u8 *rates) +{ + struct ieee80211softmac_device *mac = ieee80211_priv(dev); + unsigned long flags; + + spin_lock_irqsave(&mac->lock, flags); + memcpy(mac->ratesinfo.rates, rates, count); + mac->ratesinfo.count = count; + spin_unlock_irqrestore(&mac->lock, flags); +} +EXPORT_SYMBOL_GPL(ieee80211softmac_set_rates); + +static u8 raise_rate(struct ieee80211softmac_device *mac, u8 rate) +{ + int i; + struct ieee80211softmac_ratesinfo *ri = &mac->ratesinfo; + + for (i=0; i<ri->count-1; i++) { + if (ri->rates[i] == rate) + return ri->rates[i+1]; + } + /* I guess we can't go any higher... */ + return ri->rates[ri->count]; +} + +u8 ieee80211softmac_lower_rate_delta(struct ieee80211softmac_device *mac, u8 rate, int delta) +{ + int i; + struct ieee80211softmac_ratesinfo *ri = &mac->ratesinfo; + + for (i=delta; i<ri->count; i++) { + if (ri->rates[i] == rate) + return ri->rates[i-delta]; + } + /* I guess we can't go any lower... */ + return ri->rates[0]; +} + +static void ieee80211softmac_add_txrates_badness(struct ieee80211softmac_device *mac, + int amount) +{ + struct ieee80211softmac_txrates oldrates; + u8 default_rate = mac->txrates.default_rate; + u8 default_fallback = mac->txrates.default_fallback; + u32 changes = 0; + + //TODO: This is highly experimental code. + // Maybe the dynamic rate selection does not work + // and it has to be removed again. + +printk("badness %d\n", mac->txrate_badness); + mac->txrate_badness += amount; + if (mac->txrate_badness <= -1000) { + /* Very small badness. Try a faster bitrate. */ + if (mac->txrates_change) + memcpy(&oldrates, &mac->txrates, sizeof(oldrates)); + default_rate = raise_rate(mac, default_rate); + changes |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT; + default_fallback = get_fallback_rate(mac, default_rate); + changes |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT_FBACK; + mac->txrate_badness = 0; +printk("Bitrate raised to %u\n", default_rate); + } else if (mac->txrate_badness >= 10000) { + /* Very high badness. Try a slower bitrate. */ + if (mac->txrates_change) + memcpy(&oldrates, &mac->txrates, sizeof(oldrates)); + default_rate = lower_rate(mac, default_rate); + changes |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT; + default_fallback = get_fallback_rate(mac, default_rate); + changes |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT_FBACK; + mac->txrate_badness = 0; +printk("Bitrate lowered to %u\n", default_rate); + } + + mac->txrates.default_rate = default_rate; + mac->txrates.default_fallback = default_fallback; + + if (changes && mac->txrates_change) + mac->txrates_change(mac->dev, changes, &oldrates); +} + +void ieee80211softmac_fragment_lost(struct net_device *dev, + u16 wl_seq) +{ + struct ieee80211softmac_device *mac = ieee80211_priv(dev); + unsigned long flags; + + spin_lock_irqsave(&mac->lock, flags); + ieee80211softmac_add_txrates_badness(mac, 1000); + //TODO + + spin_unlock_irqrestore(&mac->lock, flags); +} +EXPORT_SYMBOL_GPL(ieee80211softmac_fragment_lost); + +static int rate_cmp(const void *a_, const void *b_) { + u8 *a, *b; + a = (u8*)a_; + b = (u8*)b_; + return ((*a & ~IEEE80211_BASIC_RATE_MASK) - (*b & ~IEEE80211_BASIC_RATE_MASK)); +} + +/* Allocate a softmac network struct and fill it from a network */ +struct ieee80211softmac_network * +ieee80211softmac_create_network(struct ieee80211softmac_device *mac, + struct ieee80211_network *net) +{ + struct ieee80211softmac_network *softnet; + softnet = kzalloc(sizeof(struct ieee80211softmac_network), GFP_ATOMIC); + if(softnet == NULL) + return NULL; + memcpy(softnet->bssid, net->bssid, ETH_ALEN); + softnet->channel = net->channel; + softnet->essid.len = net->ssid_len; + memcpy(softnet->essid.data, net->ssid, softnet->essid.len); + + /* copy rates over */ + softnet->supported_rates.count = net->rates_len; + memcpy(&softnet->supported_rates.rates[0], net->rates, net->rates_len); + memcpy(&softnet->supported_rates.rates[softnet->supported_rates.count], net->rates_ex, net->rates_ex_len); + softnet->supported_rates.count += net->rates_ex_len; + sort(softnet->supported_rates.rates, softnet->supported_rates.count, sizeof(softnet->supported_rates.rates[0]), rate_cmp, NULL); + + softnet->capabilities = net->capability; + return softnet; +} + + +/* Add a network to the list, while locked */ +void +ieee80211softmac_add_network_locked(struct ieee80211softmac_device *mac, + struct ieee80211softmac_network *add_net) +{ + struct list_head *list_ptr; + struct ieee80211softmac_network *softmac_net = NULL; + + list_for_each(list_ptr, &mac->network_list) { + softmac_net = list_entry(list_ptr, struct ieee80211softmac_network, list); + if(!memcmp(softmac_net->bssid, add_net->bssid, ETH_ALEN)) + break; + else + softmac_net = NULL; + } + if(softmac_net == NULL) + list_add(&(add_net->list), &mac->network_list); +} + +/* Add a network to the list, with locking */ +void +ieee80211softmac_add_network(struct ieee80211softmac_device *mac, + struct ieee80211softmac_network *add_net) +{ + unsigned long flags; + spin_lock_irqsave(&mac->lock, flags); + ieee80211softmac_add_network_locked(mac, add_net); + spin_unlock_irqrestore(&mac->lock, flags); +} + + +/* Delete a network from the list, while locked*/ +void +ieee80211softmac_del_network_locked(struct ieee80211softmac_device *mac, + struct ieee80211softmac_network *del_net) +{ + list_del(&(del_net->list)); +} + +/* Delete a network from the list with locking */ +void +ieee80211softmac_del_network(struct ieee80211softmac_device *mac, + struct ieee80211softmac_network *del_net) +{ + unsigned long flags; + spin_lock_irqsave(&mac->lock, flags); + ieee80211softmac_del_network_locked(mac, del_net); + spin_unlock_irqrestore(&mac->lock, flags); +} + +/* Get a network from the list by MAC while locked */ +struct ieee80211softmac_network * +ieee80211softmac_get_network_by_bssid_locked(struct ieee80211softmac_device *mac, + u8 *bssid) +{ + struct list_head *list_ptr; + struct ieee80211softmac_network *softmac_net = NULL; + list_for_each(list_ptr, &mac->network_list) { + softmac_net = list_entry(list_ptr, struct ieee80211softmac_network, list); + if(!memcmp(softmac_net->bssid, bssid, ETH_ALEN)) + break; + else + softmac_net = NULL; + } + return softmac_net; +} + +/* Get a network from the list by BSSID with locking */ +struct ieee80211softmac_network * +ieee80211softmac_get_network_by_bssid(struct ieee80211softmac_device *mac, + u8 *bssid) +{ + unsigned long flags; + struct ieee80211softmac_network *softmac_net; + + spin_lock_irqsave(&mac->lock, flags); + softmac_net = ieee80211softmac_get_network_by_bssid_locked(mac, bssid); + spin_unlock_irqrestore(&mac->lock, flags); + return softmac_net; +} + +/* Get a network from the list by ESSID while locked */ +struct ieee80211softmac_network * +ieee80211softmac_get_network_by_essid_locked(struct ieee80211softmac_device *mac, + struct ieee80211softmac_essid *essid) +{ + struct list_head *list_ptr; + struct ieee80211softmac_network *softmac_net = NULL; + + list_for_each(list_ptr, &mac->network_list) { + softmac_net = list_entry(list_ptr, struct ieee80211softmac_network, list); + if (softmac_net->essid.len == essid->len && + !memcmp(softmac_net->essid.data, essid->data, essid->len)) + return softmac_net; + } + return NULL; +} + +/* Get a network from the list by ESSID with locking */ +struct ieee80211softmac_network * +ieee80211softmac_get_network_by_essid(struct ieee80211softmac_device *mac, + struct ieee80211softmac_essid *essid) +{ + unsigned long flags; + struct ieee80211softmac_network *softmac_net = NULL; + + spin_lock_irqsave(&mac->lock, flags); + softmac_net = ieee80211softmac_get_network_by_essid_locked(mac, essid); + spin_unlock_irqrestore(&mac->lock, flags); + return softmac_net; +} + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Johannes Berg"); +MODULE_AUTHOR("Joseph Jezak"); +MODULE_AUTHOR("Larry Finger"); +MODULE_AUTHOR("Danny van Dyk"); +MODULE_AUTHOR("Michael Buesch"); +MODULE_DESCRIPTION("802.11 software MAC"); diff --git a/net/ieee80211/softmac/ieee80211softmac_priv.h b/net/ieee80211/softmac/ieee80211softmac_priv.h new file mode 100644 index 000000000000..9ba7dbd161eb --- /dev/null +++ b/net/ieee80211/softmac/ieee80211softmac_priv.h @@ -0,0 +1,230 @@ +/* + * Internal softmac API definitions. + * + * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net> + * Joseph Jezak <josejx@gentoo.org> + * Larry Finger <Larry.Finger@lwfinger.net> + * Danny van Dyk <kugelfang@gentoo.org> + * Michael Buesch <mbuesch@freenet.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * The full GNU General Public License is included in this distribution in the + * file called COPYING. + */ + +#ifndef IEEE80211SOFTMAC_PRIV_H_ +#define IEEE80211SOFTMAC_PRIV_H_ + +#include <net/ieee80211softmac.h> +#include <net/ieee80211softmac_wx.h> +#include <linux/kernel.h> +#include <linux/stringify.h> + + +#define PFX "SoftMAC: " + +#ifdef assert +# undef assert +#endif +#ifdef CONFIG_IEEE80211_SOFTMAC_DEBUG +#define assert(expr) \ + do { \ + if (unlikely(!(expr))) { \ + printkl(KERN_ERR PFX "ASSERTION FAILED (%s) at: %s:%d:%s()\n", #expr, \ + __FILE__, __LINE__, __FUNCTION__); \ + } \ + } while (0) +#else +#define assert(expr) do {} while (0) +#endif + +/* rate limited printk(). */ +#ifdef printkl +# undef printkl +#endif +#define printkl(f, x...) do { if (printk_ratelimit()) printk(f ,##x); } while (0) +/* rate limited printk() for debugging */ +#ifdef dprintkl +# undef dprintkl +#endif +#ifdef CONFIG_IEEE80211_SOFTMAC_DEBUG +# define dprintkl printkl +#else +# define dprintkl(f, x...) do { /* nothing */ } while (0) +#endif + +/* debugging printk() */ +#ifdef dprintk +# undef dprintk +#endif +#ifdef CONFIG_IEEE80211_SOFTMAC_DEBUG +# define dprintk(f, x...) do { printk(f ,##x); } while (0) +#else +# define dprintk(f, x...) do { /* nothing */ } while (0) +#endif + +/* private definitions and prototypes */ + +/*** prototypes from _scan.c */ +void ieee80211softmac_scan(void *sm); +/* for internal use if scanning is needed */ +int ieee80211softmac_start_scan(struct ieee80211softmac_device *mac); +void ieee80211softmac_stop_scan(struct ieee80211softmac_device *mac); +void ieee80211softmac_wait_for_scan(struct ieee80211softmac_device *mac); + +/* for use by _module.c to assign to the callbacks */ +int ieee80211softmac_start_scan_implementation(struct net_device *dev); +void ieee80211softmac_stop_scan_implementation(struct net_device *dev); +void ieee80211softmac_wait_for_scan_implementation(struct net_device *dev); + +/*** Network prototypes from _module.c */ +struct ieee80211softmac_network * ieee80211softmac_create_network( + struct ieee80211softmac_device *mac, struct ieee80211_network *net); +void ieee80211softmac_add_network_locked(struct ieee80211softmac_device *mac, + struct ieee80211softmac_network *net); +void ieee80211softmac_add_network(struct ieee80211softmac_device *mac, + struct ieee80211softmac_network *net); +void ieee80211softmac_del_network_locked(struct ieee80211softmac_device *mac, + struct ieee80211softmac_network *net); +void ieee80211softmac_del_network(struct ieee80211softmac_device *mac, + struct ieee80211softmac_network *net); +struct ieee80211softmac_network * ieee80211softmac_get_network_by_bssid_locked( + struct ieee80211softmac_device *mac, u8 *ea); +struct ieee80211softmac_network * ieee80211softmac_get_network_by_bssid( + struct ieee80211softmac_device *mac, u8 *ea); +struct ieee80211softmac_network * ieee80211softmac_get_network_by_ssid_locked( + struct ieee80211softmac_device *mac, u8 *ssid, u8 ssid_len); +struct ieee80211softmac_network * ieee80211softmac_get_network_by_ssid( + struct ieee80211softmac_device *mac, u8 *ssid, u8 ssid_len); +struct ieee80211softmac_network * +ieee80211softmac_get_network_by_essid_locked(struct ieee80211softmac_device *mac, + struct ieee80211softmac_essid *essid); +struct ieee80211softmac_network * +ieee80211softmac_get_network_by_essid(struct ieee80211softmac_device *mac, + struct ieee80211softmac_essid *essid); + +/* Rates related */ +u8 ieee80211softmac_lower_rate_delta(struct ieee80211softmac_device *mac, u8 rate, int delta); +static inline u8 lower_rate(struct ieee80211softmac_device *mac, u8 rate) { + return ieee80211softmac_lower_rate_delta(mac, rate, 1); +} + +static inline u8 get_fallback_rate(struct ieee80211softmac_device *mac, u8 rate) +{ + return ieee80211softmac_lower_rate_delta(mac, rate, 2); +} + + +/*** prototypes from _io.c */ +int ieee80211softmac_send_mgt_frame(struct ieee80211softmac_device *mac, + void* ptrarg, u32 type, u32 arg); + +/*** prototypes from _auth.c */ +/* do these have to go into the public header? */ +int ieee80211softmac_auth_req(struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net); +int ieee80211softmac_deauth_req(struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net, int reason); + +/* for use by _module.c to assign to the callbacks */ +int ieee80211softmac_auth_resp(struct net_device *dev, struct ieee80211_auth *auth); +int ieee80211softmac_deauth_resp(struct net_device *dev, struct ieee80211_deauth *deauth); + +/*** prototypes from _assoc.c */ +void ieee80211softmac_assoc_work(void *d); +int ieee80211softmac_handle_assoc_response(struct net_device * dev, + struct ieee80211_assoc_response * resp, + struct ieee80211_network * network); +int ieee80211softmac_handle_disassoc(struct net_device * dev, + struct ieee80211_disassoc * disassoc); +int ieee80211softmac_handle_reassoc_req(struct net_device * dev, + struct ieee80211_reassoc_request * reassoc); +void ieee80211softmac_assoc_timeout(void *d); + +/* some helper functions */ +static inline int ieee80211softmac_scan_handlers_check_self(struct ieee80211softmac_device *sm) +{ + return (sm->start_scan == ieee80211softmac_start_scan_implementation) && + (sm->stop_scan == ieee80211softmac_stop_scan_implementation) && + (sm->wait_for_scan == ieee80211softmac_wait_for_scan_implementation); +} + +static inline int ieee80211softmac_scan_sanity_check(struct ieee80211softmac_device *sm) +{ + return ((sm->start_scan != ieee80211softmac_start_scan_implementation) && + (sm->stop_scan != ieee80211softmac_stop_scan_implementation) && + (sm->wait_for_scan != ieee80211softmac_wait_for_scan_implementation) + ) || ieee80211softmac_scan_handlers_check_self(sm); +} + +#define IEEE80211SOFTMAC_PROBE_DELAY HZ/2 +#define IEEE80211SOFTMAC_WORKQUEUE_NAME_LEN (17 + IFNAMSIZ) + +struct ieee80211softmac_network { + struct list_head list; /* List */ + /* Network information copied from ieee80211_network */ + u8 bssid[ETH_ALEN]; + u8 channel; + struct ieee80211softmac_essid essid; + + struct ieee80211softmac_ratesinfo supported_rates; + + /* SoftMAC specific */ + u16 authenticating:1, /* Status Flags */ + authenticated:1, + auth_desynced_once:1; + + u16 capabilities; /* Capabilities bitfield */ + u8 challenge_len; /* Auth Challenge length */ + char *challenge; /* Challenge Text */ +}; + +/* structure used to keep track of networks we're auth'ing to */ +struct ieee80211softmac_auth_queue_item { + struct list_head list; /* List head */ + struct ieee80211softmac_network *net; /* Network to auth */ + struct ieee80211softmac_device *mac; /* SoftMAC device */ + u8 retry; /* Retry limit */ + u8 state; /* Auth State */ + struct work_struct work; /* Work queue */ +}; + +/* scanning information */ +struct ieee80211softmac_scaninfo { + u8 current_channel_idx, + number_channels; + struct ieee80211_channel *channels; + u8 started:1, + stop:1; + u8 skip_flags; + struct completion finished; + struct work_struct softmac_scan; +}; + +/* private event struct */ +struct ieee80211softmac_event { + struct list_head list; + int event_type; + void *event_context; + struct work_struct work; + notify_function_ptr fun; + void *context; + struct ieee80211softmac_device *mac; +}; + +void ieee80211softmac_call_events(struct ieee80211softmac_device *mac, int event, void *event_context); +void ieee80211softmac_call_events_locked(struct ieee80211softmac_device *mac, int event, void *event_context); +int ieee80211softmac_notify_internal(struct ieee80211softmac_device *mac, + int event, void *event_context, notify_function_ptr fun, void *context, gfp_t gfp_mask); + +#endif /* IEEE80211SOFTMAC_PRIV_H_ */ diff --git a/net/ieee80211/softmac/ieee80211softmac_scan.c b/net/ieee80211/softmac/ieee80211softmac_scan.c new file mode 100644 index 000000000000..bb9ab8b45d09 --- /dev/null +++ b/net/ieee80211/softmac/ieee80211softmac_scan.c @@ -0,0 +1,244 @@ +/* + * Scanning routines. + * + * These are not exported because they're assigned to the function pointers. + * + * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net> + * Joseph Jezak <josejx@gentoo.org> + * Larry Finger <Larry.Finger@lwfinger.net> + * Danny van Dyk <kugelfang@gentoo.org> + * Michael Buesch <mbuesch@freenet.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * The full GNU General Public License is included in this distribution in the + * file called COPYING. + */ + +#include <linux/completion.h> +#include "ieee80211softmac_priv.h" + +/* internal, use to trigger scanning if needed. + * Returns -EBUSY if already scanning, + * result of start_scan otherwise */ +int +ieee80211softmac_start_scan(struct ieee80211softmac_device *sm) +{ + unsigned long flags; + int ret; + + spin_lock_irqsave(&sm->lock, flags); + if (sm->scanning) + { + spin_unlock_irqrestore(&sm->lock, flags); + return -EINPROGRESS; + } + sm->scanning = 1; + spin_unlock_irqrestore(&sm->lock, flags); + + ret = sm->start_scan(sm->dev); + if (ret) { + spin_lock_irqsave(&sm->lock, flags); + sm->scanning = 0; + spin_unlock_irqrestore(&sm->lock, flags); + } + return ret; +} + +void +ieee80211softmac_stop_scan(struct ieee80211softmac_device *sm) +{ + unsigned long flags; + + spin_lock_irqsave(&sm->lock, flags); + + if (!sm->scanning) { + spin_unlock_irqrestore(&sm->lock, flags); + return; + } + + spin_unlock_irqrestore(&sm->lock, flags); + sm->stop_scan(sm->dev); +} + +void +ieee80211softmac_wait_for_scan(struct ieee80211softmac_device *sm) +{ + unsigned long flags; + + spin_lock_irqsave(&sm->lock, flags); + + if (!sm->scanning) { + spin_unlock_irqrestore(&sm->lock, flags); + return; + } + + spin_unlock_irqrestore(&sm->lock, flags); + sm->wait_for_scan(sm->dev); +} + + +/* internal scanning implementation follows */ +void ieee80211softmac_scan(void *d) +{ + int invalid_channel; + u8 current_channel_idx; + struct ieee80211softmac_device *sm = (struct ieee80211softmac_device *)d; + struct ieee80211softmac_scaninfo *si = sm->scaninfo; + unsigned long flags; + + while (!(si->stop) && (si->current_channel_idx < si->number_channels)) { + current_channel_idx = si->current_channel_idx; + si->current_channel_idx++; /* go to the next channel */ + + invalid_channel = (si->skip_flags & si->channels[current_channel_idx].flags); + + if (!invalid_channel) { + sm->set_channel(sm->dev, si->channels[current_channel_idx].channel); + // FIXME make this user configurable (active/passive) + if(ieee80211softmac_send_mgt_frame(sm, NULL, IEEE80211_STYPE_PROBE_REQ, 0)) + printkl(KERN_DEBUG PFX "Sending Probe Request Failed\n"); + + /* also send directed management frame for the network we're looking for */ + // TODO: is this if correct, or should we do this only if scanning from assoc request? + if (sm->associnfo.req_essid.len) + ieee80211softmac_send_mgt_frame(sm, &sm->associnfo.req_essid, IEEE80211_STYPE_PROBE_REQ, 0); + schedule_delayed_work(&si->softmac_scan, IEEE80211SOFTMAC_PROBE_DELAY); + return; + } else { + dprintk(PFX "Not probing Channel %d (not allowed here)\n", si->channels[current_channel_idx].channel); + } + } + + spin_lock_irqsave(&sm->lock, flags); + cancel_delayed_work(&si->softmac_scan); + si->started = 0; + spin_unlock_irqrestore(&sm->lock, flags); + + dprintk(PFX "Scanning finished\n"); + ieee80211softmac_scan_finished(sm); + complete_all(&sm->scaninfo->finished); +} + +static inline struct ieee80211softmac_scaninfo *allocate_scaninfo(struct ieee80211softmac_device *mac) +{ + /* ugh. can we call this without having the spinlock held? */ + struct ieee80211softmac_scaninfo *info = kmalloc(sizeof(struct ieee80211softmac_scaninfo), GFP_ATOMIC); + if (unlikely(!info)) + return NULL; + INIT_WORK(&info->softmac_scan, ieee80211softmac_scan, mac); + init_completion(&info->finished); + return info; +} + +int ieee80211softmac_start_scan_implementation(struct net_device *dev) +{ + struct ieee80211softmac_device *sm = ieee80211_priv(dev); + unsigned long flags; + + if (!(dev->flags & IFF_UP)) + return -ENODEV; + + assert(ieee80211softmac_scan_handlers_check_self(sm)); + if (!ieee80211softmac_scan_handlers_check_self(sm)) + return -EINVAL; + + spin_lock_irqsave(&sm->lock, flags); + /* it looks like we need to hold the lock here + * to make sure we don't allocate two of these... */ + if (unlikely(!sm->scaninfo)) + sm->scaninfo = allocate_scaninfo(sm); + if (unlikely(!sm->scaninfo)) { + spin_unlock_irqrestore(&sm->lock, flags); + return -ENOMEM; + } + + sm->scaninfo->skip_flags = IEEE80211_CH_INVALID; + if (0 /* not scanning in IEEE802.11b */)//TODO + sm->scaninfo->skip_flags |= IEEE80211_CH_B_ONLY; + if (0 /* IEEE802.11a */) {//TODO + sm->scaninfo->channels = sm->ieee->geo.a; + sm->scaninfo->number_channels = sm->ieee->geo.a_channels; + } else { + sm->scaninfo->channels = sm->ieee->geo.bg; + sm->scaninfo->number_channels = sm->ieee->geo.bg_channels; + } + dprintk(PFX "Start scanning with channel: %d\n", sm->scaninfo->channels[0].channel); + dprintk(PFX "Scanning %d channels\n", sm->scaninfo->number_channels); + sm->scaninfo->current_channel_idx = 0; + sm->scaninfo->started = 1; + sm->scaninfo->stop = 0; + INIT_COMPLETION(sm->scaninfo->finished); + schedule_work(&sm->scaninfo->softmac_scan); + spin_unlock_irqrestore(&sm->lock, flags); + return 0; +} + +void ieee80211softmac_stop_scan_implementation(struct net_device *dev) +{ + struct ieee80211softmac_device *sm = ieee80211_priv(dev); + unsigned long flags; + + assert(ieee80211softmac_scan_handlers_check_self(sm)); + if (!ieee80211softmac_scan_handlers_check_self(sm)) + return; + + spin_lock_irqsave(&sm->lock, flags); + assert(sm->scaninfo != NULL); + if (sm->scaninfo) { + if (sm->scaninfo->started) + sm->scaninfo->stop = 1; + else + complete_all(&sm->scaninfo->finished); + } + spin_unlock_irqrestore(&sm->lock, flags); +} + +void ieee80211softmac_wait_for_scan_implementation(struct net_device *dev) +{ + struct ieee80211softmac_device *sm = ieee80211_priv(dev); + unsigned long flags; + + assert(ieee80211softmac_scan_handlers_check_self(sm)); + if (!ieee80211softmac_scan_handlers_check_self(sm)) + return; + + spin_lock_irqsave(&sm->lock, flags); + if (!sm->scaninfo->started) { + spin_unlock_irqrestore(&sm->lock, flags); + return; + } + spin_unlock_irqrestore(&sm->lock, flags); + wait_for_completion(&sm->scaninfo->finished); +} + +/* this is what drivers (that do scanning) call when they're done */ +void ieee80211softmac_scan_finished(struct ieee80211softmac_device *sm) +{ + unsigned long flags; + + spin_lock_irqsave(&sm->lock, flags); + sm->scanning = 0; + spin_unlock_irqrestore(&sm->lock, flags); + + if (sm->associnfo.bssvalid) { + struct ieee80211softmac_network *net; + + net = ieee80211softmac_get_network_by_bssid(sm, sm->associnfo.bssid); + if (net) + sm->set_channel(sm->dev, net->channel); + } + ieee80211softmac_call_events(sm, IEEE80211SOFTMAC_EVENT_SCAN_FINISHED, NULL); +} +EXPORT_SYMBOL_GPL(ieee80211softmac_scan_finished); diff --git a/net/ieee80211/softmac/ieee80211softmac_wx.c b/net/ieee80211/softmac/ieee80211softmac_wx.c new file mode 100644 index 000000000000..e1a9bc6d36ff --- /dev/null +++ b/net/ieee80211/softmac/ieee80211softmac_wx.c @@ -0,0 +1,412 @@ +/* + * This file contains our _wx handlers. Make sure you EXPORT_SYMBOL_GPL them + * + * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net> + * Joseph Jezak <josejx@gentoo.org> + * Larry Finger <Larry.Finger@lwfinger.net> + * Danny van Dyk <kugelfang@gentoo.org> + * Michael Buesch <mbuesch@freenet.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * The full GNU General Public License is included in this distribution in the + * file called COPYING. + */ + +#include "ieee80211softmac_priv.h" + +#include <net/iw_handler.h> + + +int +ieee80211softmac_wx_trigger_scan(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra) +{ + struct ieee80211softmac_device *sm = ieee80211_priv(net_dev); + return ieee80211softmac_start_scan(sm); +} +EXPORT_SYMBOL_GPL(ieee80211softmac_wx_trigger_scan); + + +int +ieee80211softmac_wx_get_scan_results(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra) +{ + struct ieee80211softmac_device *sm = ieee80211_priv(net_dev); + return ieee80211_wx_get_scan(sm->ieee, info, data, extra); +} +EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_scan_results); + +int +ieee80211softmac_wx_set_essid(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra) +{ + struct ieee80211softmac_device *sm = ieee80211_priv(net_dev); + int length = 0; + unsigned long flags; + + spin_lock_irqsave(&sm->lock, flags); + + sm->associnfo.static_essid = 0; + + if (data->essid.flags && data->essid.length && extra /*required?*/) { + length = min(data->essid.length - 1, IW_ESSID_MAX_SIZE); + if (length) { + memcpy(sm->associnfo.req_essid.data, extra, length); + sm->associnfo.static_essid = 1; + } + } + sm->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT; + + /* set our requested ESSID length. + * If applicable, we have already copied the data in */ + sm->associnfo.req_essid.len = length; + + /* queue lower level code to do work (if necessary) */ + schedule_work(&sm->associnfo.work); + + spin_unlock_irqrestore(&sm->lock, flags); + return 0; +} +EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_essid); + +int +ieee80211softmac_wx_get_essid(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra) +{ + struct ieee80211softmac_device *sm = ieee80211_priv(net_dev); + unsigned long flags; + + /* avoid getting inconsistent information */ + spin_lock_irqsave(&sm->lock, flags); + /* If all fails, return ANY (empty) */ + data->essid.length = 0; + data->essid.flags = 0; /* active */ + + /* If we have a statically configured ESSID then return it */ + if (sm->associnfo.static_essid) { + data->essid.length = sm->associnfo.req_essid.len; + data->essid.flags = 1; /* active */ + memcpy(extra, sm->associnfo.req_essid.data, sm->associnfo.req_essid.len); + } + + /* If we're associating/associated, return that */ + if (sm->associated || sm->associnfo.associating) { + data->essid.length = sm->associnfo.associate_essid.len; + data->essid.flags = 1; /* active */ + memcpy(extra, sm->associnfo.associate_essid.data, sm->associnfo.associate_essid.len); + } + spin_unlock_irqrestore(&sm->lock, flags); + return 0; +} +EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_essid); + +int +ieee80211softmac_wx_set_rate(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra) +{ + struct ieee80211softmac_device *mac = ieee80211_priv(net_dev); + struct ieee80211_device *ieee = mac->ieee; + unsigned long flags; + s32 in_rate = data->bitrate.value; + u8 rate; + int is_ofdm = 0; + int err = -EINVAL; + + if (in_rate == -1) { + /* automatic detect */ + if (ieee->modulation & IEEE80211_OFDM_MODULATION) + in_rate = 54000000; + else + in_rate = 11000000; + } + + switch (in_rate) { + case 1000000: + rate = IEEE80211_CCK_RATE_1MB; + break; + case 2000000: + rate = IEEE80211_CCK_RATE_2MB; + break; + case 5500000: + rate = IEEE80211_CCK_RATE_5MB; + break; + case 11000000: + rate = IEEE80211_CCK_RATE_11MB; + break; + case 6000000: + rate = IEEE80211_OFDM_RATE_6MB; + is_ofdm = 1; + break; + case 9000000: + rate = IEEE80211_OFDM_RATE_9MB; + is_ofdm = 1; + break; + case 12000000: + rate = IEEE80211_OFDM_RATE_12MB; + is_ofdm = 1; + break; + case 18000000: + rate = IEEE80211_OFDM_RATE_18MB; + is_ofdm = 1; + break; + case 24000000: + rate = IEEE80211_OFDM_RATE_24MB; + is_ofdm = 1; + break; + case 36000000: + rate = IEEE80211_OFDM_RATE_36MB; + is_ofdm = 1; + break; + case 48000000: + rate = IEEE80211_OFDM_RATE_48MB; + is_ofdm = 1; + break; + case 54000000: + rate = IEEE80211_OFDM_RATE_54MB; + is_ofdm = 1; + break; + default: + goto out; + } + + spin_lock_irqsave(&mac->lock, flags); + + /* Check if correct modulation for this PHY. */ + if (is_ofdm && !(ieee->modulation & IEEE80211_OFDM_MODULATION)) + goto out_unlock; + + mac->txrates.default_rate = rate; + mac->txrates.default_fallback = lower_rate(mac, rate); + err = 0; + +out_unlock: + spin_unlock_irqrestore(&mac->lock, flags); +out: + return err; +} +EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_rate); + +int +ieee80211softmac_wx_get_rate(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra) +{ + struct ieee80211softmac_device *mac = ieee80211_priv(net_dev); + unsigned long flags; + int err = -EINVAL; + + spin_lock_irqsave(&mac->lock, flags); + switch (mac->txrates.default_rate) { + case IEEE80211_CCK_RATE_1MB: + data->bitrate.value = 1000000; + break; + case IEEE80211_CCK_RATE_2MB: + data->bitrate.value = 2000000; + break; + case IEEE80211_CCK_RATE_5MB: + data->bitrate.value = 5500000; + break; + case IEEE80211_CCK_RATE_11MB: + data->bitrate.value = 11000000; + break; + case IEEE80211_OFDM_RATE_6MB: + data->bitrate.value = 6000000; + break; + case IEEE80211_OFDM_RATE_9MB: + data->bitrate.value = 9000000; + break; + case IEEE80211_OFDM_RATE_12MB: + data->bitrate.value = 12000000; + break; + case IEEE80211_OFDM_RATE_18MB: + data->bitrate.value = 18000000; + break; + case IEEE80211_OFDM_RATE_24MB: + data->bitrate.value = 24000000; + break; + case IEEE80211_OFDM_RATE_36MB: + data->bitrate.value = 36000000; + break; + case IEEE80211_OFDM_RATE_48MB: + data->bitrate.value = 48000000; + break; + case IEEE80211_OFDM_RATE_54MB: + data->bitrate.value = 54000000; + break; + default: + assert(0); + goto out_unlock; + } + err = 0; +out_unlock: + spin_unlock_irqrestore(&mac->lock, flags); + + return err; +} +EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_rate); + +int +ieee80211softmac_wx_get_wap(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra) +{ + struct ieee80211softmac_device *mac = ieee80211_priv(net_dev); + int err = 0; + unsigned long flags; + + spin_lock_irqsave(&mac->lock, flags); + if (mac->associnfo.bssvalid) + memcpy(data->ap_addr.sa_data, mac->associnfo.bssid, ETH_ALEN); + else + memset(data->ap_addr.sa_data, 0xff, ETH_ALEN); + data->ap_addr.sa_family = ARPHRD_ETHER; + spin_unlock_irqrestore(&mac->lock, flags); + return err; +} +EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_wap); + +int +ieee80211softmac_wx_set_wap(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, + char *extra) +{ + struct ieee80211softmac_device *mac = ieee80211_priv(net_dev); + static const unsigned char any[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; + static const unsigned char off[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; + unsigned long flags; + + /* sanity check */ + if (data->ap_addr.sa_family != ARPHRD_ETHER) { + return -EINVAL; + } + + spin_lock_irqsave(&mac->lock, flags); + if (!memcmp(any, data->ap_addr.sa_data, ETH_ALEN) || + !memcmp(off, data->ap_addr.sa_data, ETH_ALEN)) { + schedule_work(&mac->associnfo.work); + goto out; + } else { + if (!memcmp(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN)) { + if (mac->associnfo.associating || mac->associated) { + /* bssid unchanged and associated or associating - just return */ + goto out; + } + } else { + /* copy new value in data->ap_addr.sa_data to bssid */ + memcpy(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN); + } + /* queue associate if new bssid or (old one again and not associated) */ + schedule_work(&mac->associnfo.work); + } + +out: + spin_unlock_irqrestore(&mac->lock, flags); + return 0; +} +EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_wap); + +int +ieee80211softmac_wx_set_genie(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + struct ieee80211softmac_device *mac = ieee80211_priv(dev); + unsigned long flags; + int err = 0; + char *buf; + int i; + + spin_lock_irqsave(&mac->lock, flags); + /* bleh. shouldn't be locked for that kmalloc... */ + + if (wrqu->data.length) { + if ((wrqu->data.length < 2) || (extra[1]+2 != wrqu->data.length)) { + /* this is an IE, so the length must be + * correct. Is it possible though that + * more than one IE is passed in? + */ + err = -EINVAL; + goto out; + } + if (mac->wpa.IEbuflen <= wrqu->data.length) { + buf = kmalloc(wrqu->data.length, GFP_ATOMIC); + if (!buf) { + err = -ENOMEM; + goto out; + } + kfree(mac->wpa.IE); + mac->wpa.IE = buf; + mac->wpa.IEbuflen = wrqu->data.length; + } + memcpy(mac->wpa.IE, extra, wrqu->data.length); + dprintk(KERN_INFO PFX "generic IE set to "); + for (i=0;i<wrqu->data.length;i++) + dprintk("%.2x", mac->wpa.IE[i]); + dprintk("\n"); + mac->wpa.IElen = wrqu->data.length; + } else { + kfree(mac->wpa.IE); + mac->wpa.IE = NULL; + mac->wpa.IElen = 0; + mac->wpa.IEbuflen = 0; + } + + out: + spin_unlock_irqrestore(&mac->lock, flags); + return err; +} +EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_genie); + +int +ieee80211softmac_wx_get_genie(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + struct ieee80211softmac_device *mac = ieee80211_priv(dev); + unsigned long flags; + int err = 0; + int space = wrqu->data.length; + + spin_lock_irqsave(&mac->lock, flags); + + wrqu->data.length = 0; + + if (mac->wpa.IE && mac->wpa.IElen) { + wrqu->data.length = mac->wpa.IElen; + if (mac->wpa.IElen <= space) + memcpy(extra, mac->wpa.IE, mac->wpa.IElen); + else + err = -E2BIG; + } + spin_unlock_irqrestore(&mac->lock, flags); + return err; +} +EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_genie); + |
