/* main.c - (formerly known as dldwd_cs.c, orinoco_cs.c and orinoco.c) * * A driver for Hermes or Prism 2 chipset based PCMCIA wireless * adaptors, with Lucent/Agere, Intersil or Symbol firmware. * * Current maintainers (as of 29 September 2003) are: * Pavel Roskin * and David Gibson * * (C) Copyright David Gibson, IBM Corporation 2001-2003. * Copyright (C) 2000 David Gibson, Linuxcare Australia. * With some help from : * Copyright (C) 2001 Jean Tourrilhes, HP Labs * Copyright (C) 2001 Benjamin Herrenschmidt * * Based on dummy_cs.c 1.27 2000/06/12 21:27:25 * * Portions based on wvlan_cs.c 1.0.6, Copyright Andreas Neuhaus * http://www.stud.fh-dortmund.de/~andy/wvlan/ * * The contents of this file are subject to the Mozilla Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License * at http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See * the License for the specific language governing rights and * limitations under the License. * * The initial developer of the original code is David A. Hinds * . Portions created by David * A. Hinds are Copyright (C) 1999 David A. Hinds. All Rights * Reserved. * * Alternatively, the contents of this file may be used under the * terms of the GNU General Public License version 2 (the "GPL"), in * which case the provisions of the GPL are applicable instead of the * above. If you wish to allow the use of your version of this file * only under the terms of the GPL and not to allow others to use your * version of this file under the MPL, indicate your decision by * deleting the provisions above and replace them with the notice and * other provisions required by the GPL. If you do not delete the * provisions above, a recipient may use your version of this file * under either the MPL or the GPL. */ /* * TODO * o Handle de-encapsulation within network layer, provide 802.11 * headers (patch from Thomas 'Dent' Mirlacher) * o Fix possible races in SPY handling. * o Disconnect wireless extensions from fundamental configuration. * o (maybe) Software WEP support (patch from Stano Meduna). * o (maybe) Use multiple Tx buffers - driver handling queue * rather than firmware. */ /* Locking and synchronization: * * The basic principle is that everything is serialized through a * single spinlock, priv->lock. The lock is used in user, bh and irq * context, so when taken outside hardirq context it should always be * taken with interrupts disabled. The lock protects both the * hardware and the struct orinoco_private. * * Another flag, priv->hw_unavailable indicates that the hardware is * unavailable for an extended period of time (e.g. suspended, or in * the middle of a hard reset). This flag is protected by the * spinlock. All code which touches the hardware should check the * flag after taking the lock, and if it is set, give up on whatever * they are doing and drop the lock again. The orinoco_lock() * function handles this (it unlocks and returns -EBUSY if * hw_unavailable is non-zero). */ #define DRIVER_NAME "orinoco" #include #include #include #include #include #include #include #include #include #include #include #include #include "hermes_rid.h" #include "hermes_dld.h" #include "scan.h" #include "mic.h" #include "fw.h" #include "orinoco.h" /********************************************************************/ /* Module information */ /********************************************************************/ MODULE_AUTHOR("Pavel Roskin & " "David Gibson "); MODULE_DESCRIPTION("Driver for Lucent Orinoco, Prism II based " "and similar wireless cards"); MODULE_LICENSE("Dual MPL/GPL"); /* Level of debugging. Used in the macros in orinoco.h */ #ifdef ORINOCO_DEBUG int orinoco_debug = ORINOCO_DEBUG; EXPORT_SYMBOL(orinoco_debug); module_param(orinoco_debug, int, 0644); MODULE_PARM_DESC(orinoco_debug, "Debug level"); #endif static int suppress_linkstatus; /* = 0 */ module_param(suppress_linkstatus, bool, 0644); MODULE_PARM_DESC(suppress_linkstatus, "Don't log link status changes"); static int ignore_disconnect; /* = 0 */ module_param(ignore_disconnect, int, 0644); MODULE_PARM_DESC(ignore_disconnect, "Don't report lost link to the network layer"); static int force_monitor; /* = 0 */ module_param(force_monitor, int, 0644); MODULE_PARM_DESC(force_monitor, "Allow monitor mode for all firmware versions"); /********************************************************************/ /* Compile time configuration and compatibility stuff */ /********************************************************************/ /* We do this this way to avoid ifdefs in the actual code */ #ifdef WIRELESS_SPY #define SPY_NUMBER(priv) (priv->spy_data.spy_number) #else #define SPY_NUMBER(priv) 0 #endif /* WIRELESS_SPY */ /********************************************************************/ /* Internal constants */ /********************************************************************/ /* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */ static const u8 encaps_hdr[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00}; #define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2) #define ORINOCO_MIN_MTU 256 #define ORINOCO_MAX_MTU (IEEE80211_MAX_DATA_LEN - ENCAPS_OVERHEAD) #define SYMBOL_MAX_VER_LEN (14) #define USER_BAP 0 #define IRQ_BAP 1 #define MAX_IRQLOOPS_PER_IRQ 10 #define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* Based on a guestimate of * how many events the * device could * legitimately generate */ #define SMALL_KEY_SIZE 5 #define LARGE_KEY_SIZE 13 #define TX_NICBUF_SIZE_BUG 1585 /* Bug in Symbol firmware */ #define DUMMY_FID 0xFFFF /*#define MAX_MULTICAST(priv) (priv->firmware_type == FIRMWARE_TYPE_AGERE ? \ HERMES_MAX_MULTICAST : 0)*/ #define MAX_MULTICAST(priv) (HERMES_MAX_MULTICAST) #define ORINOCO_INTEN (HERMES_EV_RX | HERMES_EV_ALLOC \ | HERMES_EV_TX | HERMES_EV_TXEXC \ | HERMES_EV_WTERR | HERMES_EV_INFO \ | HERMES_EV_INFDROP) #define MAX_RID_LEN 1024 static const struct iw_handler_def orinoco_handler_def; static const struct ethtool_ops orinoco_ethtool_ops; /********************************************************************/ /* Data tables */ /********************************************************************/ #define NUM_CHANNELS 14 /* This tables gives the actual meanings of the bitrate IDs returned * by the firmware. */ static struct { int bitrate; /* in 100s of kilobits */ int automatic; u16 agere_txratectrl; u16 intersil_txratectrl; } bitrate_table[] = { {110, 1, 3, 15}, /* Entry 0 is the default */ {10, 0, 1, 1}, {10, 1, 1, 1}, {20, 0, 2, 2}, {20, 1, 6, 3}, {55, 0, 4, 4}, {55, 1, 7, 7}, {110, 0, 5, 8}, }; #define BITRATE_TABLE_SIZE ARRAY_SIZE(bitrate_table) /********************************************************************/ /* Data types */ /********************************************************************/ /* Beginning of the Tx descriptor, used in TxExc handling */ struct hermes_txexc_data { struct hermes_tx_descriptor desc; __le16 frame_ctl; __le16 duration_id; u8 addr1[ETH_ALEN]; } __attribute__ ((packed)); /* Rx frame header except compatibility 802.3 header */ struct hermes_rx_descriptor { /* Control */ __le16 status; __le32 time; u8 silence; u8 signal; u8 rate; u8 rxflow; __le32 reserved; /* 802.11 header */ __le16 frame_ctl; __le16 duration_id; u8 addr1[ETH_ALEN]; u8 addr2[ETH_ALEN]; u8 addr3[ETH_ALEN]; __le16 seq_ctl; u8 addr4[ETH_ALEN]; /* Data length */ __le16 data_len; } __attribute__ ((packed)); struct orinoco_rx_data { struct hermes_rx_descriptor *desc; struct sk_buff *skb; struct list_head list; }; /********************************************************************/ /* Function prototypes */ /********************************************************************/ static int __orinoco_program_rids(struct net_device *dev); static void __orinoco_set_multicast_list(struct net_device *dev); /********************************************************************/ /* Internal helper functions */ /********************************************************************/ static inline void set_port_type(struct orinoco_private *priv) { switch (priv->iw_mode) { case IW_MODE_INFRA: priv->port_type = 1; priv->createibss = 0; break; case IW_MODE_ADHOC: if (priv->prefer_port3) { priv->port_type = 3; priv->createibss = 0; } else { priv->port_type = priv->ibss_port; priv->createibss = 1; } break; case IW_MODE_MONITOR: priv->port_type = 3; priv->createibss = 0; break; default: printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n", priv->ndev->name); } } static int orinoco_get_bitratemode(int bitrate, int automatic) { int ratemode = -1; int i; if ((bitrate != 10) && (bitrate != 20) && (bitrate != 55) && (bitrate != 110)) return ratemode; for (i = 0; i < BITRATE_TABLE_SIZE; i++) { if ((bitrate_table[i].bitrate == bitrate) && (bitrate_table[i].automatic == automatic)) { ratemode = i; break; } } return ratemode; } static void orinoco_get_ratemode_cfg(int ratemode, int *bitrate, int *automatic) { BUG_ON((ratemode < 0) || (ratemode >= BITRATE_TABLE_SIZE)); *bitrate = bitrate_table[ratemode].bitrate * 100000; *automatic = bitrate_table[ratemode].automatic; } static inline u8 *orinoco_get_ie(u8 *data, size_t len, enum ieee80211_eid eid) { u8 *p = data; while ((p + 2) < (data + len)) { if (p[0] == eid) return p; p += p[1] + 2; } return NULL; } #define WPA_OUI_TYPE "\x00\x50\xF2\x01" #define WPA_SELECTOR_LEN 4 static inline u8 *orinoco_get_wpa_ie(u8 *data, size_t len) { u8 *p = data; while ((p + 2 + WPA_SELECTOR_LEN) < (data + len)) { if ((p[0] == WLAN_EID_GENERIC) && (memcmp(&p[2], WPA_OUI_TYPE, WPA_SELECTOR_LEN) == 0)) return p; p += p[1] + 2; } return NULL; } /********************************************************************/ /* Device methods */ /********************************************************************/ static int orinoco_open(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); unsigned long flags; int err; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = __orinoco_up(dev); if (!err) priv->open = 1; orinoco_unlock(priv, &flags); return err; } static int orinoco_stop(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); int err = 0; /* We mustn't use orinoco_lock() here, because we need to be able to close the interface even if hw_unavailable is set (e.g. as we're released after a PC Card removal) */ spin_lock_irq(&priv->lock); priv->open = 0; err = __orinoco_down(dev); spin_unlock_irq(&priv->lock); return err; } static struct net_device_stats *orinoco_get_stats(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); return &priv->stats; } static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; struct iw_statistics *wstats = &priv->wstats; int err; unsigned long flags; if (!netif_device_present(dev)) { printk(KERN_WARNING "%s: get_wireless_stats() called while device not present\n", dev->name); return NULL; /* FIXME: Can we do better than this? */ } /* If busy, return the old stats. Returning NULL may cause * the interface to disappear from /proc/net/wireless */ if (orinoco_lock(priv, &flags) != 0) return wstats; /* We can't really wait for the tallies inquiry command to * complete, so we just use the previous results and trigger * a new tallies inquiry command for next time - Jean II */ /* FIXME: Really we should wait for the inquiry to come back - * as it is the stats we give don't make a whole lot of sense. * Unfortunately, it's not clear how to do that within the * wireless extensions framework: I think we're in user * context, but a lock seems to be held by the time we get in * here so we're not safe to sleep here. */ hermes_inquire(hw, HERMES_INQ_TALLIES); if (priv->iw_mode == IW_MODE_ADHOC) { memset(&wstats->qual, 0, sizeof(wstats->qual)); /* If a spy address is defined, we report stats of the * first spy address - Jean II */ if (SPY_NUMBER(priv)) { wstats->qual.qual = priv->spy_data.spy_stat[0].qual; wstats->qual.level = priv->spy_data.spy_stat[0].level; wstats->qual.noise = priv->spy_data.spy_stat[0].noise; wstats->qual.updated = priv->spy_data.spy_stat[0].updated; } } else { struct { __le16 qual, signal, noise, unused; } __attribute__ ((packed)) cq; err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_COMMSQUALITY, &cq); if (!err) { wstats->qual.qual = (int)le16_to_cpu(cq.qual); wstats->qual.level = (int)le16_to_cpu(cq.signal) - 0x95; wstats->qual.noise = (int)le16_to_cpu(cq.noise) - 0x95; wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM; } } orinoco_unlock(priv, &flags); return wstats; } static void orinoco_set_multicast_list(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); unsigned long flags; if (orinoco_lock(priv, &flags) != 0) { printk(KERN_DEBUG "%s: orinoco_set_multicast_list() " "called when hw_unavailable\n", dev->name); return; } __orinoco_set_multicast_list(dev); orinoco_unlock(priv, &flags); } static int orinoco_change_mtu(struct net_device *dev, int new_mtu) { struct orinoco_private *priv = netdev_priv(dev); if ((new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU)) return -EINVAL; /* MTU + encapsulation + header length */ if ((new_mtu + ENCAPS_OVERHEAD + sizeof(struct ieee80211_hdr)) > (priv->nicbuf_size - ETH_HLEN)) return -EINVAL; dev->mtu = new_mtu; return 0; } /********************************************************************/ /* Tx path */ /********************************************************************/ static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); struct net_device_stats *stats = &priv->stats; hermes_t *hw = &priv->hw; int err = 0; u16 txfid = priv->txfid; struct ethhdr *eh; int tx_control; unsigned long flags; if (!netif_running(dev)) { printk(KERN_ERR "%s: Tx on stopped device!\n", dev->name); return NETDEV_TX_BUSY; } if (netif_queue_stopped(dev)) { printk(KERN_DEBUG "%s: Tx while transmitter busy!\n", dev->name); return NETDEV_TX_BUSY; } if (orinoco_lock(priv, &flags) != 0) { printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n", dev->name); return NETDEV_TX_BUSY; } if (!netif_carrier_ok(dev) || (priv->iw_mode == IW_MODE_MONITOR)) { /* Oops, the firmware hasn't established a connection, silently drop the packet (this seems to be the safest approach). */ goto drop; } /* Check packet length */ if (skb->len < ETH_HLEN) goto drop; tx_control = HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX; if (priv->encode_alg == IW_ENCODE_ALG_TKIP) tx_control |= (priv->tx_key << HERMES_MIC_KEY_ID_SHIFT) | HERMES_TXCTRL_MIC; if (priv->has_alt_txcntl) { /* WPA enabled firmwares have tx_cntl at the end of * the 802.11 header. So write zeroed descriptor and * 802.11 header at the same time */ char desc[HERMES_802_3_OFFSET]; __le16 *txcntl = (__le16 *) &desc[HERMES_TXCNTL2_OFFSET]; memset(&desc, 0, sizeof(desc)); *txcntl = cpu_to_le16(tx_control); err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), txfid, 0); if (err) { if (net_ratelimit()) printk(KERN_ERR "%s: Error %d writing Tx " "descriptor to BAP\n", dev->name, err); goto busy; } } else { struct hermes_tx_descriptor desc; memset(&desc, 0, sizeof(desc)); desc.tx_control = cpu_to_le16(tx_control); err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), txfid, 0); if (err) { if (net_ratelimit()) printk(KERN_ERR "%s: Error %d writing Tx " "descriptor to BAP\n", dev->name, err); goto busy; } /* Clear the 802.11 header and data length fields - some * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused * if this isn't done. */ hermes_clear_words(hw, HERMES_DATA0, HERMES_802_3_OFFSET - HERMES_802_11_OFFSET); } eh = (struct ethhdr *)skb->data; /* Encapsulate Ethernet-II frames */ if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */ struct header_struct { struct ethhdr eth; /* 802.3 header */ u8 encap[6]; /* 802.2 header */ } __attribute__ ((packed)) hdr; /* Strip destination and source from the data */ skb_pull(skb, 2 * ETH_ALEN); /* And move them to a separate header */ memcpy(&hdr.eth, eh, 2 * ETH_ALEN); hdr.eth.h_proto = htons(sizeof(encaps_hdr) + skb->len); memcpy(hdr.encap, encaps_hdr, sizeof(encaps_hdr)); /* Insert the SNAP header */ if (skb_headroom(skb) < sizeof(hdr)) { printk(KERN_ERR "%s: Not enough headroom for 802.2 headers %d\n", dev->name, skb_headroom(skb)); goto drop; } eh = (struct ethhdr *) skb_push(skb, sizeof(hdr)); memcpy(eh, &hdr, sizeof(hdr)); } err = hermes_bap_pwrite(hw, USER_BAP, skb->data, skb->len, txfid, HERMES_802_3_OFFSET); if (err) { printk(KERN_ERR "%s: Error %d writing packet to BAP\n", dev->name, err); goto busy; } /* Calculate Michael MIC */ if (priv->encode_alg == IW_ENCODE_ALG_TKIP) { u8 mic_buf[MICHAEL_MIC_LEN + 1]; u8 *mic; size_t offset; size_t len; if (skb->len % 2) { /* MIC start is on an odd boundary */ mic_buf[0] = skb->data[skb->len - 1]; mic = &mic_buf[1]; offset = skb->len - 1; len = MICHAEL_MIC_LEN + 1; } else { mic = &mic_buf[0]; offset = skb->len; len = MICHAEL_MIC_LEN; } orinoco_mic(priv->tx_tfm_mic, priv->tkip_key[priv->tx_key].tx_mic, eh->h_dest, eh->h_source, 0 /* priority */, skb->data + ETH_HLEN, skb->len - ETH_HLEN, mic); /* Write the MIC */ err = hermes_bap_pwrite(hw, USER_BAP, &mic_buf[0], len, txfid, HERMES_802_3_OFFSET + offset); if (err) { printk(KERN_ERR "%s: Error %d writing MIC to BAP\n", dev->name, err); goto busy; } } /* Finally, we actually initiate the send */ netif_stop_queue(dev); err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL, txfid, NULL); if (err) { netif_start_queue(dev); if (net_ratelimit()) printk(KERN_ERR "%s: Error %d transmitting packet\n", dev->name, err); goto busy; } dev->trans_start = jiffies; stats->tx_bytes += HERMES_802_3_OFFSET + skb->len; goto ok; drop: stats->tx_errors++; stats->tx_dropped++; ok: orinoco_unlock(priv, &flags); dev_kfree_skb(skb); return NETDEV_TX_OK; busy: if (err == -EIO) schedule_work(&priv->reset_work); orinoco_unlock(priv, &flags); return NETDEV_TX_BUSY; } static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw) { struct orinoco_private *priv = netdev_priv(dev); u16 fid = hermes_read_regn(hw, ALLOCFID); if (fid != priv->txfid) { if (fid != DUMMY_FID) printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n", dev->name, fid); return; } hermes_write_regn(hw, ALLOCFID, DUMMY_FID); } static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw) { struct orinoco_private *priv = netdev_priv(dev); struct net_device_stats *stats = &priv->stats; stats->tx_packets++; netif_wake_queue(dev); hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID); } static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw) { struct orinoco_private *priv = netdev_priv(dev); struct net_device_stats *stats = &priv->stats; u16 fid = hermes_read_regn(hw, TXCOMPLFID); u16 status; struct hermes_txexc_data hdr; int err = 0; if (fid == DUMMY_FID) return; /* Nothing's really happened */ /* Read part of the frame header - we need status and addr1 */ err = hermes_bap_pread(hw, IRQ_BAP, &hdr, sizeof(struct hermes_txexc_data), fid, 0); hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID); stats->tx_errors++; if (err) { printk(KERN_WARNING "%s: Unable to read descriptor on Tx error " "(FID=%04X error %d)\n", dev->name, fid, err); return; } DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev->name, err, fid); /* We produce a TXDROP event only for retry or lifetime * exceeded, because that's the only status that really mean * that this particular node went away. * Other errors means that *we* screwed up. - Jean II */ status = le16_to_cpu(hdr.desc.status); if (status & (HERMES_TXSTAT_RETRYERR | HERMES_TXSTAT_AGEDERR)) { union iwreq_data wrqu; /* Copy 802.11 dest address. * We use the 802.11 header because the frame may * not be 802.3 or may be mangled... * In Ad-Hoc mode, it will be the node address. * In managed mode, it will be most likely the AP addr * User space will figure out how to convert it to * whatever it needs (IP address or else). * - Jean II */ memcpy(wrqu.addr.sa_data, hdr.addr1, ETH_ALEN); wrqu.addr.sa_family = ARPHRD_ETHER; /* Send event to user space */ wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL); } netif_wake_queue(dev); } static void orinoco_tx_timeout(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); struct net_device_stats *stats = &priv->stats; struct hermes *hw = &priv->hw; printk(KERN_WARNING "%s: Tx timeout! " "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n", dev->name, hermes_read_regn(hw, ALLOCFID), hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT)); stats->tx_errors++; schedule_work(&priv->reset_work); } /********************************************************************/ /* Rx path (data frames) */ /********************************************************************/ /* Does the frame have a SNAP header indicating it should be * de-encapsulated to Ethernet-II? */ static inline int is_ethersnap(void *_hdr) { u8 *hdr = _hdr; /* We de-encapsulate all packets which, a) have SNAP headers * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header * and where b) the OUI of the SNAP header is 00:00:00 or * 00:00:f8 - we need both because different APs appear to use * different OUIs for some reason */ return (memcmp(hdr, &encaps_hdr, 5) == 0) && ((hdr[5] == 0x00) || (hdr[5] == 0xf8)); } static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac, int level, int noise) { struct iw_quality wstats; wstats.level = level - 0x95; wstats.noise = noise - 0x95; wstats.qual = (level > noise) ? (level - noise) : 0; wstats.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM; /* Update spy records */ wireless_spy_update(dev, mac, &wstats); } static void orinoco_stat_gather(struct net_device *dev, struct sk_buff *skb, struct hermes_rx_descriptor *desc) { struct orinoco_private *priv = netdev_priv(dev); /* Using spy support with lots of Rx packets, like in an * infrastructure (AP), will really slow down everything, because * the MAC address must be compared to each entry of the spy list. * If the user really asks for it (set some address in the * spy list), we do it, but he will pay the price. * Note that to get here, you need both WIRELESS_SPY * compiled in AND some addresses in the list !!! */ /* Note : gcc will optimise the whole section away if * WIRELESS_SPY is not defined... - Jean II */ if (SPY_NUMBER(priv)) { orinoco_spy_gather(dev, skb_mac_header(skb) + ETH_ALEN, desc->signal, desc->silence); } } /* * orinoco_rx_monitor - handle received monitor frames. * * Arguments: * dev network device * rxfid received FID * desc rx descriptor of the frame * * Call context: interrupt */ static void orinoco_rx_monitor(struct net_device *dev, u16 rxfid, struct hermes_rx_descriptor *desc) { u32 hdrlen = 30; /* return full header by default */ u32 datalen = 0; u16 fc; int err; int len; struct sk_buff *skb; struct orinoco_private *priv = netdev_priv(dev); struct net_device_stats *stats = &priv->stats; hermes_t *hw = &priv->hw; len = le16_to_cpu(desc->data_len); /* Determine the size of the header and the data */ fc = le16_to_cpu(desc->frame_ctl); switch (fc & IEEE80211_FCTL_FTYPE) { case IEEE80211_FTYPE_DATA: if ((fc & IEEE80211_FCTL_TODS) && (fc & IEEE80211_FCTL_FROMDS)) hdrlen = 30; else hdrlen = 24; datalen = len; break; case IEEE80211_FTYPE_MGMT: hdrlen = 24; datalen = len; break; case IEEE80211_FTYPE_CTL: switch (fc & IEEE80211_FCTL_STYPE) { case IEEE80211_STYPE_PSPOLL: case IEEE80211_STYPE_RTS: case IEEE80211_STYPE_CFEND: case IEEE80211_STYPE_CFENDACK: hdrlen = 16; break; case IEEE80211_STYPE_CTS: case IEEE80211_STYPE_ACK: hdrlen = 10; break; } break; default: /* Unknown frame type */ break; } /* sanity check the length */ if (datalen > IEEE80211_MAX_DATA_LEN + 12) { printk(KERN_DEBUG "%s: oversized monitor frame, " "data length = %d\n", dev->name, datalen); stats->rx_length_errors++; goto update_stats; } skb = dev_alloc_skb(hdrlen + datalen); if (!skb) { printk(KERN_WARNING "%s: Cannot allocate skb for monitor frame\n", dev->name); goto update_stats; } /* Copy the 802.11 header to the skb */ memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen); skb_reset_mac_header(skb); /* If any, copy the data from the card to the skb */ if (datalen > 0) { err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, datalen), ALIGN(datalen, 2), rxfid, HERMES_802_2_OFFSET); if (err) { printk(KERN_ERR "%s: error %d reading monitor frame\n", dev->name, err); goto drop; } } skb->dev = dev; skb->ip_summed = CHECKSUM_NONE; skb->pkt_type = PACKET_OTHERHOST; skb->protocol = cpu_to_be16(ETH_P_802_2); stats->rx_packets++; stats->rx_bytes += skb->len; netif_rx(skb); return; drop: dev_kfree_skb_irq(skb); update_stats: stats->rx_errors++; stats->rx_dropped++; } /* Get tsc from the firmware */ static int orinoco_hw_get_tkip_iv(struct orinoco_private *priv, int key, u8 *tsc) { hermes_t *hw = &priv->hw; int err = 0; u8 tsc_arr[4][IW_ENCODE_SEQ_MAX_SIZE]; if ((key < 0) || (key > 4)) return -EINVAL; err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENT_TKIP_IV, sizeof(tsc_arr), NULL, &tsc_arr); if (!err) memcpy(tsc, &tsc_arr[key][0], sizeof(tsc_arr[0])); return err; } static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw) { struct orinoco_private *priv = netdev_priv(dev); struct net_device_stats *stats = &priv->stats; struct iw_statistics *wstats = &priv->wstats; struct sk_buff *skb = NULL; u16 rxfid, status; int length; struct hermes_rx_descriptor *desc; struct orinoco_rx_data *rx_data; int err; desc = kmalloc(sizeof(*desc), GFP_ATOMIC); if (!desc) { printk(KERN_WARNING "%s: Can't allocate space for RX descriptor\n", dev->name); goto update_stats; } rxfid = hermes_read_regn(hw, RXFID); err = hermes_bap_pread(hw, IRQ_BAP, desc, sizeof(*desc), rxfid, 0); if (err) { printk(KERN_ERR "%s: error %d reading Rx descriptor. " "Frame dropped.\n", dev->name, err); goto update_stats; } status = le16_to_cpu(desc->status); if (status & HERMES_RXSTAT_BADCRC) { DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n", dev->name); stats->rx_crc_errors++; goto update_stats; } /* Handle frames in monitor mode */ if (priv->iw_mode == IW_MODE_MONITOR) { orinoco_rx_monitor(dev, rxfid, desc); goto out; } if (status & HERMES_RXSTAT_UNDECRYPTABLE) { DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n", dev->name); wstats->discard.code++; goto update_stats; } length = le16_to_cpu(desc->data_len); /* Sanity checks */ if (length < 3) { /* No for even an 802.2 LLC header */ /* At least on Symbol firmware with PCF we get quite a lot of these legitimately - Poll frames with no data. */ goto out; } if (length > IEEE80211_MAX_DATA_LEN) { printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n", dev->name, length); stats->rx_length_errors++; goto update_stats; } /* Payload size does not include Michael MIC. Increase payload * size to read it together with the data. */ if (status & HERMES_RXSTAT_MIC) length += MICHAEL_MIC_LEN; /* We need space for the packet data itself, plus an ethernet header, plus 2 bytes so we can align the IP header on a 32bit boundary, plus 1 byte so we can read in odd length packets from the card, which has an IO granularity of 16 bits */ skb = dev_alloc_skb(length+ETH_HLEN+2+1); if (!skb) { printk(KERN_WARNING "%s: Can't allocate skb for Rx\n", dev->name); goto update_stats; } /* We'll prepend the header, so reserve space for it. The worst case is no decapsulation, when 802.3 header is prepended and nothing is removed. 2 is for aligning the IP header. */ skb_reserve(skb, ETH_HLEN + 2); err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, length), ALIGN(length, 2), rxfid, HERMES_802_2_OFFSET); if (err) { printk(KERN_ERR "%s: error %d reading frame. " "Frame dropped.\n", dev->name, err); goto drop; } /* Add desc and skb to rx queue */ rx_data = kzalloc(sizeof(*rx_data), GFP_ATOMIC); if (!rx_data) { printk(KERN_WARNING "%s: Can't allocate RX packet\n", dev->name); goto drop; } rx_data->desc = desc; rx_data->skb = skb; list_add_tail(&rx_data->list, &priv->rx_list); tasklet_schedule(&priv->rx_tasklet); return; drop: dev_kfree_skb_irq(skb); update_stats: stats->rx_errors++; stats->rx_dropped++; out: kfree(desc); } static void orinoco_rx(struct net_device *dev, struct hermes_rx_descriptor *desc, struct sk_buff *skb) { struct orinoco_private *priv = netdev_priv(dev); struct net_device_stats *stats = &priv->stats; u16 status, fc; int length; struct ethhdr *hdr; status = le16_to_cpu(desc->status); length = le16_to_cpu(desc->data_len); fc = le16_to_cpu(desc->frame_ctl); /* Calculate and check MIC */ if (status & HERMES_RXSTAT_MIC) { int key_id = ((status & HERMES_RXSTAT_MIC_KEY_ID) >> HERMES_MIC_KEY_ID_SHIFT); u8 mic[MICHAEL_MIC_LEN]; u8 *rxmic; u8 *src = (fc & IEEE80211_FCTL_FROMDS) ? desc->addr3 : desc->addr2; /* Extract Michael MIC from payload */ rxmic = skb->data + skb->len - MICHAEL_MIC_LEN; skb_trim(skb, skb->len - MICHAEL_MIC_LEN); length -= MICHAEL_MIC_LEN; orinoco_mic(priv->rx_tfm_mic, priv->tkip_key[key_id].rx_mic, desc->addr1, src, 0, /* priority or QoS? */ skb->data, skb->len, &mic[0]); if (memcmp(mic, rxmic, MICHAEL_MIC_LEN)) { union iwreq_data wrqu; struct iw_michaelmicfailure wxmic; printk(KERN_WARNING "%s: " "Invalid Michael MIC in data frame from %pM, " "using key %i\n", dev->name, src, key_id); /* TODO: update stats */ /* Notify userspace */ memset(&wxmic, 0, sizeof(wxmic)); wxmic.flags = key_id & IW_MICFAILURE_KEY_ID; wxmic.flags |= (desc->addr1[0] & 1) ? IW_MICFAILURE_GROUP : IW_MICFAILURE_PAIRWISE; wxmic.src_addr.sa_family = ARPHRD_ETHER; memcpy(wxmic.src_addr.sa_data, src, ETH_ALEN); (void) orinoco_hw_get_tkip_iv(priv, key_id, &wxmic.tsc[0]); memset(&wrqu, 0, sizeof(wrqu)); wrqu.data.length = sizeof(wxmic); wireless_send_event(dev, IWEVMICHAELMICFAILURE, &wrqu, (char *) &wxmic); goto drop; } } /* Handle decapsulation * In most cases, the firmware tell us about SNAP frames. * For some reason, the SNAP frames sent by LinkSys APs * are not properly recognised by most firmwares. * So, check ourselves */ if (length >= ENCAPS_OVERHEAD && (((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) || ((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) || is_ethersnap(skb->data))) { /* These indicate a SNAP within 802.2 LLC within 802.11 frame which we'll need to de-encapsulate to the original EthernetII frame. */ hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN - ENCAPS_OVERHEAD); } else { /* 802.3 frame - prepend 802.3 header as is */ hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN); hdr->h_proto = htons(length); } memcpy(hdr->h_dest, desc->addr1, ETH_ALEN); if (fc & IEEE80211_FCTL_FROMDS) memcpy(hdr->h_source, desc->addr3, ETH_ALEN); else memcpy(hdr->h_source, desc->addr2, ETH_ALEN); skb->protocol = eth_type_trans(skb, dev); skb->ip_summed = CHECKSUM_NONE; if (fc & IEEE80211_FCTL_TODS) skb->pkt_type = PACKET_OTHERHOST; /* Process the wireless stats if needed */ orinoco_stat_gather(dev, skb, desc); /* Pass the packet to the networking stack */ netif_rx(skb); stats->rx_packets++; stats->rx_bytes += length; return; drop: dev_kfree_skb(skb); stats->rx_errors++; stats->rx_dropped++; } static void orinoco_rx_isr_tasklet(unsigned long data) { struct net_device *dev = (struct net_device *) data; struct orinoco_private *priv = netdev_priv(dev); struct orinoco_rx_data *rx_data, *temp; struct hermes_rx_descriptor *desc; struct sk_buff *skb; unsigned long flags; /* orinoco_rx requires the driver lock, and we also need to * protect priv->rx_list, so just hold the lock over the * lot. * * If orinoco_lock fails, we've unplugged the card. In this * case just abort. */ if (orinoco_lock(priv, &flags) != 0) return; /* extract desc and skb from queue */ list_for_each_entry_safe(rx_data, temp, &priv->rx_list, list) { desc = rx_data->desc; skb = rx_data->skb; list_del(&rx_data->list); kfree(rx_data); orinoco_rx(dev, desc, skb); kfree(desc); } orinoco_unlock(priv, &flags); } /********************************************************************/ /* Rx path (info frames) */ /********************************************************************/ static void print_linkstatus(struct net_device *dev, u16 status) { char *s; if (suppress_linkstatus) return; switch (status) { case HERMES_LINKSTATUS_NOT_CONNECTED: s = "Not Connected"; break; case HERMES_LINKSTATUS_CONNECTED: s = "Connected"; break; case HERMES_LINKSTATUS_DISCONNECTED: s = "Disconnected"; break; case HERMES_LINKSTATUS_AP_CHANGE: s = "AP Changed"; break; case HERMES_LINKSTATUS_AP_OUT_OF_RANGE: s = "AP Out of Range"; break; case HERMES_LINKSTATUS_AP_IN_RANGE: s = "AP In Range"; break; case HERMES_LINKSTATUS_ASSOC_FAILED: s = "Association Failed"; break; default: s = "UNKNOWN"; } printk(KERN_DEBUG "%s: New link status: %s (%04x)\n", dev->name, s, status); } /* Search scan results for requested BSSID, join it if found */ static void orinoco_join_ap(struct work_struct *work) { struct orinoco_private *priv = container_of(work, struct orinoco_private, join_work); struct net_device *dev = priv->ndev; struct hermes *hw = &priv->hw; int err; unsigned long flags; struct join_req { u8 bssid[ETH_ALEN]; __le16 channel; } __attribute__ ((packed)) req; const int atom_len = offsetof(struct prism2_scan_apinfo, atim); struct prism2_scan_apinfo *atom = NULL; int offset = 4; int found = 0; u8 *buf; u16 len; /* Allocate buffer for scan results */ buf = kmalloc(MAX_SCAN_LEN, GFP_KERNEL); if (!buf) return; if (orinoco_lock(priv, &flags) != 0) goto fail_lock; /* Sanity checks in case user changed something in the meantime */ if (!priv->bssid_fixed) goto out; if (strlen(priv->desired_essid) == 0) goto out; /* Read scan results from the firmware */ err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SCANRESULTSTABLE, MAX_SCAN_LEN, &len, buf); if (err) { printk(KERN_ERR "%s: Cannot read scan results\n", dev->name); goto out; } len = HERMES_RECLEN_TO_BYTES(len); /* Go through the scan results looking for the channel of the AP * we were requested to join */ for (; offset + atom_len <= len; offset += atom_len) { atom = (struct prism2_scan_apinfo *) (buf + offset); if (memcmp(&atom->bssid, priv->desired_bssid, ETH_ALEN) == 0) { found = 1; break; } } if (!found) { DEBUG(1, "%s: Requested AP not found in scan results\n", dev->name); goto out; } memcpy(req.bssid, priv->desired_bssid, ETH_ALEN); req.channel = atom->channel; /* both are little-endian */ err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFJOINREQUEST, &req); if (err) printk(KERN_ERR "%s: Error issuing join request\n", dev->name); out: orinoco_unlock(priv, &flags); fail_lock: kfree(buf); } /* Send new BSSID to userspace */ static void orinoco_send_bssid_wevent(struct orinoco_private *priv) { struct net_device *dev = priv->ndev; struct hermes *hw = &priv->hw; union iwreq_data wrqu; int err; err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID, ETH_ALEN, NULL, wrqu.ap_addr.sa_data); if (err != 0) return; wrqu.ap_addr.sa_family = ARPHRD_ETHER; /* Send event to user space */ wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); } static void orinoco_send_assocreqie_wevent(struct orinoco_private *priv) { struct net_device *dev = priv->ndev; struct hermes *hw = &priv->hw; union iwreq_data wrqu; int err; u8 buf[88]; u8 *ie; if (!priv->has_wpa) return; err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENT_ASSOC_REQ_INFO, sizeof(buf), NULL, &buf); if (err != 0) return; ie = orinoco_get_wpa_ie(buf, sizeof(buf)); if (ie) { int rem = sizeof(buf) - (ie - &buf[0]); wrqu.data.length = ie[1] + 2; if (wrqu.data.length > rem) wrqu.data.length = rem; if (wrqu.data.length) /* Send event to user space */ wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, ie); } } static void orinoco_send_assocrespie_wevent(struct orinoco_private *priv) { struct net_device *dev = priv->ndev; struct hermes *hw = &priv->hw; union iwreq_data wrqu; int err; u8 buf[88]; /* TODO: verify max size or IW_GENERIC_IE_MAX */ u8 *ie; if (!priv->has_wpa) return; err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENT_ASSOC_RESP_INFO, sizeof(buf), NULL, &buf); if (err != 0) return; ie = orinoco_get_wpa_ie(buf, sizeof(buf)); if (ie) { int rem = sizeof(buf) - (ie - &buf[0]); wrqu.data.length = ie[1] + 2; if (wrqu.data.length > rem) wrqu.data.length = rem; if (wrqu.data.length) /* Send event to user space */ wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, ie); } } static void orinoco_send_wevents(struct work_struct *work) { struct orinoco_private *priv = container_of(work, struct orinoco_private, wevent_work); unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return; orinoco_send_assocreqie_wevent(priv); orinoco_send_assocrespie_wevent(priv); orinoco_send_bssid_wevent(priv); orinoco_unlock(priv, &flags); } static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw) { struct orinoco_private *priv = netdev_priv(dev); u16 infofid; struct { __le16 len; __le16 type; } __attribute__ ((packed)) info; int len, type; int err; /* This is an answer to an INQUIRE command that we did earlier, * or an information "event" generated by the card * The controller return to us a pseudo frame containing * the information in question - Jean II */ infofid = hermes_read_regn(hw, INFOFID); /* Read the info frame header - don't try too hard */ err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info), infofid, 0); if (err) { printk(KERN_ERR "%s: error %d reading info frame. " "Frame dropped.\n", dev->name, err); return; } len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len)); type = le16_to_cpu(info.type); switch (type) { case HERMES_INQ_TALLIES: { struct hermes_tallies_frame tallies; struct iw_statistics *wstats = &priv->wstats; if (len > sizeof(tallies)) { printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n", dev->name, len); len = sizeof(tallies); } err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len, infofid, sizeof(info)); if (err) break; /* Increment our various counters */ /* wstats->discard.nwid - no wrong BSSID stuff */ wstats->discard.code += le16_to_cpu(tallies.RxWEPUndecryptable); if (len == sizeof(tallies)) wstats->discard.code += le16_to_cpu(tallies.RxDiscards_WEPICVError) + le16_to_cpu(tallies.RxDiscards_WEPExcluded); wstats->discard.misc += le16_to_cpu(tallies.TxDiscardsWrongSA); wstats->discard.fragment += le16_to_cpu(tallies.RxMsgInBadMsgFragments); wstats->discard.retries += le16_to_cpu(tallies.TxRetryLimitExceeded); /* wstats->miss.beacon - no match */ } break; case HERMES_INQ_LINKSTATUS: { struct hermes_linkstatus linkstatus; u16 newstatus; int connected; if (priv->iw_mode == IW_MODE_MONITOR) break; if (len != sizeof(linkstatus)) { printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n", dev->name, len); break; } err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len, infofid, sizeof(info)); if (err) break; newstatus = le16_to_cpu(linkstatus.linkstatus); /* Symbol firmware uses "out of range" to signal that * the hostscan frame can be requested. */ if (newstatus == HERMES_LINKSTATUS_AP_OUT_OF_RANGE && priv->firmware_type == FIRMWARE_TYPE_SYMBOL && priv->has_hostscan && priv->scan_inprogress) { hermes_inquire(hw, HERMES_INQ_HOSTSCAN_SYMBOL); break; } connected = (newstatus == HERMES_LINKSTATUS_CONNECTED) || (newstatus == HERMES_LINKSTATUS_AP_CHANGE) || (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE); if (connected) netif_carrier_on(dev); else if (!ignore_disconnect) netif_carrier_off(dev); if (newstatus != priv->last_linkstatus) { priv->last_linkstatus = newstatus; print_linkstatus(dev, newstatus); /* The info frame contains only one word which is the * status (see hermes.h). The status is pretty boring * in itself, that's why we export the new BSSID... * Jean II */ schedule_work(&priv->wevent_work); } } break; case HERMES_INQ_SCAN: if (!priv->scan_inprogress && priv->bssid_fixed && priv->firmware_type == FIRMWARE_TYPE_INTERSIL) { schedule_work(&priv->join_work); break; } /* fall through */ case HERMES_INQ_HOSTSCAN: case HERMES_INQ_HOSTSCAN_SYMBOL: { /* Result of a scanning. Contains information about * cells in the vicinity - Jean II */ union iwreq_data wrqu; unsigned char *buf; /* Scan is no longer in progress */ priv->scan_inprogress = 0; /* Sanity check */ if (len > 4096) { printk(KERN_WARNING "%s: Scan results too large (%d bytes)\n", dev->name, len); break; } /* Allocate buffer for results */ buf = kmalloc(len, GFP_ATOMIC); if (buf == NULL) /* No memory, so can't printk()... */ break; /* Read scan data */ err = hermes_bap_pread(hw, IRQ_BAP, (void *) buf, len, infofid, sizeof(info)); if (err) { kfree(buf); break; } #ifdef ORINOCO_DEBUG { int i; printk(KERN_DEBUG "Scan result [%02X", buf[0]); for (i = 1; i < (len * 2); i++) printk(":%02X", buf[i]); printk("]\n"); } #endif /* ORINOCO_DEBUG */ if (orinoco_process_scan_results(priv, buf, len) == 0) { /* 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); } kfree(buf); } break; case HERMES_INQ_CHANNELINFO: { struct agere_ext_scan_info *bss; if (!priv->scan_inprogress) { printk(KERN_DEBUG "%s: Got chaninfo without scan, " "len=%d\n", dev->name, len); break; } /* An empty result indicates that the scan is complete */ if (len == 0) { union iwreq_data wrqu; /* Scan is no longer in progress */ priv->scan_inprogress = 0; wrqu.data.length = 0; wrqu.data.flags = 0; wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL); break; } /* Sanity check */ else if (len > sizeof(*bss)) { printk(KERN_WARNING "%s: Ext scan results too large (%d bytes). " "Truncating results to %zd bytes.\n", dev->name, len, sizeof(*bss)); len = sizeof(*bss); } else if (len < (offsetof(struct agere_ext_scan_info, data) + 2)) { /* Drop this result now so we don't have to * keep checking later */ printk(KERN_WARNING "%s: Ext scan results too short (%d bytes)\n", dev->name, len); break; } bss = kmalloc(sizeof(*bss), GFP_ATOMIC); if (bss == NULL) break; /* Read scan data */ err = hermes_bap_pread(hw, IRQ_BAP, (void *) bss, len, infofid, sizeof(info)); if (err) { kfree(bss); break; } orinoco_add_ext_scan_result(priv, bss); kfree(bss); break; } case HERMES_INQ_SEC_STAT_AGERE: /* Security status (Agere specific) */ /* Ignore this frame for now */ if (priv->firmware_type == FIRMWARE_TYPE_AGERE) break; /* fall through */ default: printk(KERN_DEBUG "%s: Unknown information frame received: " "type 0x%04x, length %d\n", dev->name, type, len); /* We don't actually do anything about it */ break; } } static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw) { if (net_ratelimit()) printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name); } /********************************************************************/ /* Internal hardware control routines */ /********************************************************************/ int __orinoco_up(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); struct hermes *hw = &priv->hw; int err; netif_carrier_off(dev); /* just to make sure */ err = __orinoco_program_rids(dev); if (err) { printk(KERN_ERR "%s: Error %d configuring card\n", dev->name, err); return err; } /* Fire things up again */ hermes_set_irqmask(hw, ORINOCO_INTEN); err = hermes_enable_port(hw, 0); if (err) { printk(KERN_ERR "%s: Error %d enabling MAC port\n", dev->name, err); return err; } netif_start_queue(dev); return 0; } EXPORT_SYMBOL(__orinoco_up); int __orinoco_down(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); struct hermes *hw = &priv->hw; int err; netif_stop_queue(dev); if (!priv->hw_unavailable) { if (!priv->broken_disableport) { err = hermes_disable_port(hw, 0); if (err) { /* Some firmwares (e.g. Intersil 1.3.x) seem * to have problems disabling the port, oh * well, too bad. */ printk(KERN_WARNING "%s: Error %d disabling MAC port\n", dev->name, err); priv->broken_disableport = 1; } } hermes_set_irqmask(hw, 0); hermes_write_regn(hw, EVACK, 0xffff); } /* firmware will have to reassociate */ netif_carrier_off(dev); priv->last_linkstatus = 0xffff; return 0; } EXPORT_SYMBOL(__orinoco_down); static int orinoco_allocate_fid(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); struct hermes *hw = &priv->hw; int err; err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid); if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) { /* Try workaround for old Symbol firmware bug */ priv->nicbuf_size = TX_NICBUF_SIZE_BUG; err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid); printk(KERN_WARNING "%s: firmware ALLOC bug detected " "(old Symbol firmware?). Work around %s\n", dev->name, err ? "failed!" : "ok."); } return err; } int orinoco_reinit_firmware(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); struct hermes *hw = &priv->hw; int err; err = hermes_init(hw); if (priv->do_fw_download && !err) { err = orinoco_download(priv); if (err) priv->do_fw_download = 0; } if (!err) err = orinoco_allocate_fid(dev); return err; } EXPORT_SYMBOL(orinoco_reinit_firmware); static int __orinoco_hw_set_bitrate(struct orinoco_private *priv) { hermes_t *hw = &priv->hw; int ratemode = priv->bitratemode; int err = 0; if (ratemode >= BITRATE_TABLE_SIZE) { printk(KERN_ERR "%s: BUG: Invalid bitrate mode %d\n", priv->ndev->name, ratemode); return -EINVAL; } switch (priv->firmware_type) { case FIRMWARE_TYPE_AGERE: err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFTXRATECONTROL, bitrate_table[ratemode].agere_txratectrl); break; case FIRMWARE_TYPE_INTERSIL: case FIRMWARE_TYPE_SYMBOL: err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFTXRATECONTROL, bitrate_table[ratemode].intersil_txratectrl); break; default: BUG(); } return err; } static int orinoco_hw_get_act_bitrate(struct orinoco_private *priv, int *bitrate) { hermes_t *hw = &priv->hw; int i; int err = 0; u16 val; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTTXRATE, &val); if (err) return err; switch (priv->firmware_type) { case FIRMWARE_TYPE_AGERE: /* Lucent style rate */ /* Note : in Lucent firmware, the return value of * HERMES_RID_CURRENTTXRATE is the bitrate in Mb/s, * and therefore is totally different from the * encoding of HERMES_RID_CNFTXRATECONTROL. * Don't forget that 6Mb/s is really 5.5Mb/s */ if (val == 6) *bitrate = 5500000; else *bitrate = val * 1000000; break; case FIRMWARE_TYPE_INTERSIL: /* Intersil style rate */ case FIRMWARE_TYPE_SYMBOL: /* Symbol style rate */ for (i = 0; i < BITRATE_TABLE_SIZE; i++) if (bitrate_table[i].intersil_txratectrl == val) break; if (i >= BITRATE_TABLE_SIZE) printk(KERN_INFO "%s: Unable to determine current bitrate (0x%04hx)\n", priv->ndev->name, val); *bitrate = bitrate_table[i].bitrate * 100000; break; default: BUG(); } return err; } /* Set fixed AP address */ static int __orinoco_hw_set_wap(struct orinoco_private *priv) { int roaming_flag; int err = 0; hermes_t *hw = &priv->hw; switch (priv->firmware_type) { case FIRMWARE_TYPE_AGERE: /* not supported */ break; case FIRMWARE_TYPE_INTERSIL: if (priv->bssid_fixed) roaming_flag = 2; else roaming_flag = 1; err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFROAMINGMODE, roaming_flag); break; case FIRMWARE_TYPE_SYMBOL: err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFMANDATORYBSSID_SYMBOL, &priv->desired_bssid); break; } return err; } /* Change the WEP keys and/or the current keys. Can be called * either from __orinoco_hw_setup_enc() or directly from * orinoco_ioctl_setiwencode(). In the later case the association * with the AP is not broken (if the firmware can handle it), * which is needed for 802.1x implementations. */ static int __orinoco_hw_setup_wepkeys(struct orinoco_private *priv) { hermes_t *hw = &priv->hw; int err = 0; switch (priv->firmware_type) { case FIRMWARE_TYPE_AGERE: err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFWEPKEYS_AGERE, &priv->keys); if (err) return err; err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFTXKEY_AGERE, priv->tx_key); if (err) return err; break; case FIRMWARE_TYPE_INTERSIL: case FIRMWARE_TYPE_SYMBOL: { int keylen; int i; /* Force uniform key length to work around * firmware bugs */ keylen = le16_to_cpu(priv->keys[priv->tx_key].len); if (keylen > LARGE_KEY_SIZE) { printk(KERN_ERR "%s: BUG: Key %d has oversize length %d.\n", priv->ndev->name, priv->tx_key, keylen); return -E2BIG; } /* Write all 4 keys */ for (i = 0; i < ORINOCO_MAX_KEYS; i++) { err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDEFAULTKEY0 + i, HERMES_BYTES_TO_RECLEN(keylen), priv->keys[i].data); if (err) return err; } /* Write the index of the key used in transmission */ err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFWEPDEFAULTKEYID, priv->tx_key); if (err) return err; } break; } return 0; } static int __orinoco_hw_setup_enc(struct orinoco_private *priv) { hermes_t *hw = &priv->hw; int err = 0; int master_wep_flag; int auth_flag; int enc_flag; /* Setup WEP keys for WEP and WPA */ if (priv->encode_alg) __orinoco_hw_setup_wepkeys(priv); if (priv->wep_restrict) auth_flag = HERMES_AUTH_SHARED_KEY; else auth_flag = HERMES_AUTH_OPEN; if (priv->wpa_enabled) enc_flag = 2; else if (priv->encode_alg == IW_ENCODE_ALG_WEP) enc_flag = 1; else enc_flag = 0; switch (priv->firmware_type) { case FIRMWARE_TYPE_AGERE: /* Agere style WEP */ if (priv->encode_alg == IW_ENCODE_ALG_WEP) { /* Enable the shared-key authentication. */ err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFAUTHENTICATION_AGERE, auth_flag); } err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFWEPENABLED_AGERE, enc_flag); if (err) return err; if (priv->has_wpa) { /* Set WPA key management */ err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFSETWPAAUTHMGMTSUITE_AGERE, priv->key_mgmt); if (err) return err; } break; case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */ case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */ if (priv->encode_alg == IW_ENCODE_ALG_WEP) { if (priv->wep_restrict || (priv->firmware_type == FIRMWARE_TYPE_SYMBOL)) master_wep_flag = HERMES_WEP_PRIVACY_INVOKED | HERMES_WEP_EXCL_UNENCRYPTED; else master_wep_flag = HERMES_WEP_PRIVACY_INVOKED; err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFAUTHENTICATION, auth_flag); if (err) return err; } else master_wep_flag = 0; if (priv->iw_mode == IW_MODE_MONITOR) master_wep_flag |= HERMES_WEP_HOST_DECRYPT; /* Master WEP setting : on/off */ err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFWEPFLAGS_INTERSIL, master_wep_flag); if (err) return err; break; } return 0; } /* key must be 32 bytes, including the tx and rx MIC keys. * rsc must be 8 bytes * tsc must be 8 bytes or NULL */ static int __orinoco_hw_set_tkip_key(hermes_t *hw, int key_idx, int set_tx, u8 *key, u8 *rsc, u8 *tsc) { struct { __le16 idx; u8 rsc[IW_ENCODE_SEQ_MAX_SIZE]; u8 key[TKIP_KEYLEN]; u8 tx_mic[MIC_KEYLEN]; u8 rx_mic[MIC_KEYLEN]; u8 tsc[IW_ENCODE_SEQ_MAX_SIZE]; } __attribute__ ((packed)) buf; int ret; int err; int k; u16 xmitting; key_idx &= 0x3; if (set_tx) key_idx |= 0x8000; buf.idx = cpu_to_le16(key_idx); memcpy(buf.key, key, sizeof(buf.key) + sizeof(buf.tx_mic) + sizeof(buf.rx_mic)); if (rsc == NULL) memset(buf.rsc, 0, sizeof(buf.rsc)); else memcpy(buf.rsc, rsc, sizeof(buf.rsc)); if (tsc == NULL) { memset(buf.tsc, 0, sizeof(buf.tsc)); buf.tsc[4] = 0x10; } else { memcpy(buf.tsc, tsc, sizeof(buf.tsc)); } /* Wait upto 100ms for tx queue to empty */ k = 100; do { k--; udelay(1000); ret = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_TXQUEUEEMPTY, &xmitting); if (ret) break; } while ((k > 0) && xmitting); if (k == 0) ret = -ETIMEDOUT; err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFADDDEFAULTTKIPKEY_AGERE, &buf); return ret ? ret : err; } static int orinoco_clear_tkip_key(struct orinoco_private *priv, int key_idx) { hermes_t *hw = &priv->hw; int err; memset(&priv->tkip_key[key_idx], 0, sizeof(priv->tkip_key[key_idx])); err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFREMDEFAULTTKIPKEY_AGERE, key_idx); if (err) printk(KERN_WARNING "%s: Error %d clearing TKIP key %d\n", priv->ndev->name, err, key_idx); return err; } static int __orinoco_program_rids(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err; struct hermes_idstring idbuf; /* Set the MAC address */ err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR, HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr); if (err) { printk(KERN_ERR "%s: Error %d setting MAC address\n", dev->name, err); return err; } /* Set up the link mode */ err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE, priv->port_type); if (err) { printk(KERN_ERR "%s: Error %d setting port type\n", dev->name, err); return err; } /* Set the channel/frequency */ if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) { err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFOWNCHANNEL, priv->channel); if (err) { printk(KERN_ERR "%s: Error %d setting channel %d\n", dev->name, err, priv->channel); return err; } } if (priv->has_ibss) { u16 createibss; if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) { printk(KERN_WARNING "%s: This firmware requires an " "ESSID in IBSS-Ad-Hoc mode.\n", dev->name); /* With wvlan_cs, in this case, we would crash. * hopefully, this driver will behave better... * Jean II */ createibss = 0; } else { createibss = priv->createibss; } err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFCREATEIBSS, createibss); if (err) { printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n", dev->name, err); return err; } } /* Set the desired BSSID */ err = __orinoco_hw_set_wap(priv); if (err) { printk(KERN_ERR "%s: Error %d setting AP address\n", dev->name, err); return err; } /* Set the desired ESSID */ idbuf.len = cpu_to_le16(strlen(priv->desired_essid)); memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val)); /* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */ err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID, HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2), &idbuf); if (err) { printk(KERN_ERR "%s: Error %d setting OWNSSID\n", dev->name, err); return err; } err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID, HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2), &idbuf); if (err) { printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n", dev->name, err); return err; } /* Set the station name */ idbuf.len = cpu_to_le16(strlen(priv->nick)); memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val)); err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME, HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2), &idbuf); if (err) { printk(KERN_ERR "%s: Error %d setting nickname\n", dev->name, err); return err; } /* Set AP density */ if (priv->has_sensitivity) { err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE, priv->ap_density); if (err) { printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. " "Disabling sensitivity control\n", dev->name, err); priv->has_sensitivity = 0; } } /* Set RTS threshold */ err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD, priv->rts_thresh); if (err) { printk(KERN_ERR "%s: Error %d setting RTS threshold\n", dev->name, err); return err; } /* Set fragmentation threshold or MWO robustness */ if (priv->has_mwo) err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFMWOROBUST_AGERE, priv->mwo_robust); else err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD, priv->frag_thresh); if (err) { printk(KERN_ERR "%s: Error %d setting fragmentation\n", dev->name, err); return err; } /* Set bitrate */ err = __orinoco_hw_set_bitrate(priv); if (err) { printk(KERN_ERR "%s: Error %d setting bitrate\n", dev->name, err); return err; } /* Set power management */ if (priv->has_pm) { err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPMENABLED, priv->pm_on); if (err) { printk(KERN_ERR "%s: Error %d setting up PM\n", dev->name, err); return err; } err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFMULTICASTRECEIVE, priv->pm_mcast); if (err) { printk(KERN_ERR "%s: Error %d setting up PM\n", dev->name, err); return err; } err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFMAXSLEEPDURATION, priv->pm_period); if (err) { printk(KERN_ERR "%s: Error %d setting up PM\n", dev->name, err); return err; } err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, priv->pm_timeout); if (err) { printk(KERN_ERR "%s: Error %d setting up PM\n", dev->name, err); return err; } } /* Set preamble - only for Symbol so far... */ if (priv->has_preamble) { err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPREAMBLE_SYMBOL, priv->preamble); if (err) { printk(KERN_ERR "%s: Error %d setting preamble\n", dev->name, err); return err; } } /* Set up encryption */ if (priv->has_wep || priv->has_wpa) { err = __orinoco_hw_setup_enc(priv); if (err) { printk(KERN_ERR "%s: Error %d activating encryption\n", dev->name, err); return err; } } if (priv->iw_mode == IW_MODE_MONITOR) { /* Enable monitor mode */ dev->type = ARPHRD_IEEE80211; err = hermes_docmd_wait(hw, HERMES_CMD_TEST | HERMES_TEST_MONITOR, 0, NULL); } else { /* Disable monitor mode */ dev->type = ARPHRD_ETHER; err = hermes_docmd_wait(hw, HERMES_CMD_TEST | HERMES_TEST_STOP, 0, NULL); } if (err) return err; /* Set promiscuity / multicast*/ priv->promiscuous = 0; priv->mc_count = 0; /* FIXME: what about netif_tx_lock */ __orinoco_set_multicast_list(dev); return 0; } static int __orinoco_hw_set_multicast_list(struct orinoco_private *priv, struct dev_addr_list *mc_list, int mc_count, int promisc) { hermes_t *hw = &priv->hw; int err = 0; if (promisc != priv->promiscuous) { err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPROMISCUOUSMODE, promisc); if (err) { printk(KERN_ERR "%s: Error %d setting PROMISCUOUSMODE to 1.\n", priv->ndev->name, err); } else priv->promiscuous = promisc; } /* If we're not in promiscuous mode, then we need to set the * group address if either we want to multicast, or if we were * multicasting and want to stop */ if (!promisc && (mc_count || priv->mc_count)) { struct dev_mc_list *p = mc_list; struct hermes_multicast mclist; int i; for (i = 0; i < mc_count; i++) { /* paranoia: is list shorter than mc_count? */ BUG_ON(!p); /* paranoia: bad address size in list? */ BUG_ON(p->dmi_addrlen != ETH_ALEN); memcpy(mclist.addr[i], p->dmi_addr, ETH_ALEN); p = p->next; } if (p) printk(KERN_WARNING "%s: Multicast list is " "longer than mc_count\n", priv->ndev->name); err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFGROUPADDRESSES, HERMES_BYTES_TO_RECLEN(mc_count * ETH_ALEN), &mclist); if (err) printk(KERN_ERR "%s: Error %d setting multicast list.\n", priv->ndev->name, err); else priv->mc_count = mc_count; } return err; } /* FIXME: return int? */ static void __orinoco_set_multicast_list(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); int err = 0; int promisc, mc_count; /* The Hermes doesn't seem to have an allmulti mode, so we go * into promiscuous mode and let the upper levels deal. */ if ((dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) || (dev->mc_count > MAX_MULTICAST(priv))) { promisc = 1; mc_count = 0; } else { promisc = 0; mc_count = dev->mc_count; } err = __orinoco_hw_set_multicast_list(priv, dev->mc_list, mc_count, promisc); } /* This must be called from user context, without locks held - use * schedule_work() */ static void orinoco_reset(struct work_struct *work) { struct orinoco_private *priv = container_of(work, struct orinoco_private, reset_work); struct net_device *dev = priv->ndev; struct hermes *hw = &priv->hw; int err; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) /* When the hardware becomes available again, whatever * detects that is responsible for re-initializing * it. So no need for anything further */ return; netif_stop_queue(dev); /* Shut off interrupts. Depending on what state the hardware * is in, this might not work, but we'll try anyway */ hermes_set_irqmask(hw, 0); hermes_write_regn(hw, EVACK, 0xffff); priv->hw_unavailable++; priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */ netif_carrier_off(dev); orinoco_unlock(priv, &flags); /* Scanning support: Cleanup of driver struct */ orinoco_clear_scan_results(priv, 0); priv->scan_inprogress = 0; if (priv->hard_reset) { err = (*priv->hard_reset)(priv); if (err) { printk(KERN_ERR "%s: orinoco_reset: Error %d " "performing hard reset\n", dev->name, err); goto disable; } } err = orinoco_reinit_firmware(dev); if (err) { printk(KERN_ERR "%s: orinoco_reset: Error %d re-initializing firmware\n", dev->name, err); goto disable; } /* This has to be called from user context */ spin_lock_irq(&priv->lock); priv->hw_unavailable--; /* priv->open or priv->hw_unavailable might have changed while * we dropped the lock */ if (priv->open && (!priv->hw_unavailable)) { err = __orinoco_up(dev); if (err) { printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n", dev->name, err); } else dev->trans_start = jiffies; } spin_unlock_irq(&priv->lock); return; disable: hermes_set_irqmask(hw, 0); netif_device_detach(dev); printk(KERN_ERR "%s: Device has been disabled!\n", dev->name); } /********************************************************************/ /* Interrupt handler */ /********************************************************************/ static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw) { printk(KERN_DEBUG "%s: TICK\n", dev->name); } static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw) { /* This seems to happen a fair bit under load, but ignoring it seems to work fine...*/ printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n", dev->name); } irqreturn_t orinoco_interrupt(int irq, void *dev_id) { struct net_device *dev = dev_id; struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int count = MAX_IRQLOOPS_PER_IRQ; u16 evstat, events; /* These are used to detect a runaway interrupt situation. * * If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy, * we panic and shut down the hardware */ /* jiffies value the last time we were called */ static int last_irq_jiffy; /* = 0 */ static int loops_this_jiffy; /* = 0 */ unsigned long flags; if (orinoco_lock(priv, &flags) != 0) { /* If hw is unavailable - we don't know if the irq was * for us or not */ return IRQ_HANDLED; } evstat = hermes_read_regn(hw, EVSTAT); events = evstat & hw->inten; if (!events) { orinoco_unlock(priv, &flags); return IRQ_NONE; } if (jiffies != last_irq_jiffy) loops_this_jiffy = 0; last_irq_jiffy = jiffies; while (events && count--) { if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) { printk(KERN_WARNING "%s: IRQ handler is looping too " "much! Resetting.\n", dev->name); /* Disable interrupts for now */ hermes_set_irqmask(hw, 0); schedule_work(&priv->reset_work); break; } /* Check the card hasn't been removed */ if (!hermes_present(hw)) { DEBUG(0, "orinoco_interrupt(): card removed\n"); break; } if (events & HERMES_EV_TICK) __orinoco_ev_tick(dev, hw); if (events & HERMES_EV_WTERR) __orinoco_ev_wterr(dev, hw); if (events & HERMES_EV_INFDROP) __orinoco_ev_infdrop(dev, hw); if (events & HERMES_EV_INFO) __orinoco_ev_info(dev, hw); if (events & HERMES_EV_RX) __orinoco_ev_rx(dev, hw); if (events & HERMES_EV_TXEXC) __orinoco_ev_txexc(dev, hw); if (events & HERMES_EV_TX) __orinoco_ev_tx(dev, hw); if (events & HERMES_EV_ALLOC) __orinoco_ev_alloc(dev, hw); hermes_write_regn(hw, EVACK, evstat); evstat = hermes_read_regn(hw, EVSTAT); events = evstat & hw->inten; }; orinoco_unlock(priv, &flags); return IRQ_HANDLED; } EXPORT_SYMBOL(orinoco_interrupt); /********************************************************************/ /* Power management */ /********************************************************************/ #if defined(CONFIG_PM_SLEEP) && !defined(CONFIG_HERMES_CACHE_FW_ON_INIT) static int orinoco_pm_notifier(struct notifier_block *notifier, unsigned long pm_event, void *unused) { struct orinoco_private *priv = container_of(notifier, struct orinoco_private, pm_notifier); /* All we need to do is cache the firmware before suspend, and * release it when we come out. * * Only need to do this if we're downloading firmware. */ if (!priv->do_fw_download) return NOTIFY_DONE; switch (pm_event) { case PM_HIBERNATION_PREPARE: case PM_SUSPEND_PREPARE: orinoco_cache_fw(priv, 0); break; case PM_POST_RESTORE: /* Restore from hibernation failed. We need to clean * up in exactly the same way, so fall through. */ case PM_POST_HIBERNATION: case PM_POST_SUSPEND: orinoco_uncache_fw(priv); break; case PM_RESTORE_PREPARE: default: break; } return NOTIFY_DONE; } #else /* !PM_SLEEP || HERMES_CACHE_FW_ON_INIT */ #define orinoco_pm_notifier NULL #endif /********************************************************************/ /* Initialization */ /********************************************************************/ struct comp_id { u16 id, variant, major, minor; } __attribute__ ((packed)); static inline fwtype_t determine_firmware_type(struct comp_id *nic_id) { if (nic_id->id < 0x8000) return FIRMWARE_TYPE_AGERE; else if (nic_id->id == 0x8000 && nic_id->major == 0) return FIRMWARE_TYPE_SYMBOL; else return FIRMWARE_TYPE_INTERSIL; } /* Set priv->firmware type, determine firmware properties */ static int determine_firmware(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err; struct comp_id nic_id, sta_id; unsigned int firmver; char tmp[SYMBOL_MAX_VER_LEN+1] __attribute__((aligned(2))); /* Get the hardware version */ err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id); if (err) { printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n", dev->name, err); return err; } le16_to_cpus(&nic_id.id); le16_to_cpus(&nic_id.variant); le16_to_cpus(&nic_id.major); le16_to_cpus(&nic_id.minor); printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n", dev->name, nic_id.id, nic_id.variant, nic_id.major, nic_id.minor); priv->firmware_type = determine_firmware_type(&nic_id); /* Get the firmware version */ err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id); if (err) { printk(KERN_ERR "%s: Cannot read station identity: error %d\n", dev->name, err); return err; } le16_to_cpus(&sta_id.id); le16_to_cpus(&sta_id.variant); le16_to_cpus(&sta_id.major); le16_to_cpus(&sta_id.minor); printk(KERN_DEBUG "%s: Station identity %04x:%04x:%04x:%04x\n", dev->name, sta_id.id, sta_id.variant, sta_id.major, sta_id.minor); switch (sta_id.id) { case 0x15: printk(KERN_ERR "%s: Primary firmware is active\n", dev->name); return -ENODEV; case 0x14b: printk(KERN_ERR "%s: Tertiary firmware is active\n", dev->name); return -ENODEV; case 0x1f: /* Intersil, Agere, Symbol Spectrum24 */ case 0x21: /* Symbol Spectrum24 Trilogy */ break; default: printk(KERN_NOTICE "%s: Unknown station ID, please report\n", dev->name); break; } /* Default capabilities */ priv->has_sensitivity = 1; priv->has_mwo = 0; priv->has_preamble = 0; priv->has_port3 = 1; priv->has_ibss = 1; priv->has_wep = 0; priv->has_big_wep = 0; priv->has_alt_txcntl = 0; priv->has_ext_scan = 0; priv->has_wpa = 0; priv->do_fw_download = 0; /* Determine capabilities from the firmware version */ switch (priv->firmware_type) { case FIRMWARE_TYPE_AGERE: /* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout, ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */ snprintf(priv->fw_name, sizeof(priv->fw_name) - 1, "Lucent/Agere %d.%02d", sta_id.major, sta_id.minor); firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor; priv->has_ibss = (firmver >= 0x60006); priv->has_wep = (firmver >= 0x40020); priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell Gold cards from the others? */ priv->has_mwo = (firmver >= 0x60000); priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */ priv->ibss_port = 1; priv->has_hostscan = (firmver >= 0x8000a); priv->do_fw_download = 1; priv->broken_monitor = (firmver >= 0x80000); priv->has_alt_txcntl = (firmver >= 0x90000); /* All 9.x ? */ priv->has_ext_scan = (firmver >= 0x90000); /* All 9.x ? */ priv->has_wpa = (firmver >= 0x9002a); /* Tested with Agere firmware : * 1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II * Tested CableTron firmware : 4.32 => Anton */ break; case FIRMWARE_TYPE_SYMBOL: /* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */ /* Intel MAC : 00:02:B3:* */ /* 3Com MAC : 00:50:DA:* */ memset(tmp, 0, sizeof(tmp)); /* Get the Symbol firmware version */ err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SECONDARYVERSION_SYMBOL, SYMBOL_MAX_VER_LEN, NULL, &tmp); if (err) { printk(KERN_WARNING "%s: Error %d reading Symbol firmware info. " "Wildly guessing capabilities...\n", dev->name, err); firmver = 0; tmp[0] = '\0'; } else { /* The firmware revision is a string, the format is * something like : "V2.20-01". * Quick and dirty parsing... - Jean II */ firmver = ((tmp[1] - '0') << 16) | ((tmp[3] - '0') << 12) | ((tmp[4] - '0') << 8) | ((tmp[6] - '0') << 4) | (tmp[7] - '0'); tmp[SYMBOL_MAX_VER_LEN] = '\0'; } snprintf(priv->fw_name, sizeof(priv->fw_name) - 1, "Symbol %s", tmp); priv->has_ibss = (firmver >= 0x20000); priv->has_wep = (firmver >= 0x15012); priv->has_big_wep = (firmver >= 0x20000); priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) || (firmver >= 0x29000 && firmver < 0x30000) || firmver >= 0x31000; priv->has_preamble = (firmver >= 0x20000); priv->ibss_port = 4; /* Symbol firmware is found on various cards, but * there has been no attempt to check firmware * download on non-spectrum_cs based cards. * * Given that the Agere firmware download works * differently, we should avoid doing a firmware * download with the Symbol algorithm on non-spectrum * cards. * * For now we can identify a spectrum_cs based card * because it has a firmware reset function. */ priv->do_fw_download = (priv->stop_fw != NULL); priv->broken_disableport = (firmver == 0x25013) || (firmver >= 0x30000 && firmver <= 0x31000); priv->has_hostscan = (firmver >= 0x31001) || (firmver >= 0x29057 && firmver < 0x30000); /* Tested with Intel firmware : 0x20015 => Jean II */ /* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */ break; case FIRMWARE_TYPE_INTERSIL: /* D-Link, Linksys, Adtron, ZoomAir, and many others... * Samsung, Compaq 100/200 and Proxim are slightly * different and less well tested */ /* D-Link MAC : 00:40:05:* */ /* Addtron MAC : 00:90:D1:* */ snprintf(priv->fw_name, sizeof(priv->fw_name) - 1, "Intersil %d.%d.%d", sta_id.major, sta_id.minor, sta_id.variant); firmver = ((unsigned long)sta_id.major << 16) | ((unsigned long)sta_id.minor << 8) | sta_id.variant; priv->has_ibss = (firmver >= 0x000700); /* FIXME */ priv->has_big_wep = priv->has_wep = (firmver >= 0x000800); priv->has_pm = (firmver >= 0x000700); priv->has_hostscan = (firmver >= 0x010301); if (firmver >= 0x000800) priv->ibss_port = 0; else { printk(KERN_NOTICE "%s: Intersil firmware earlier " "than v0.8.x - several features not supported\n", dev->name); priv->ibss_port = 1; } break; } printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name, priv->fw_name); return 0; } static int orinoco_init(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err = 0; struct hermes_idstring nickbuf; u16 reclen; int len; /* No need to lock, the hw_unavailable flag is already set in * alloc_orinocodev() */ priv->nicbuf_size = IEEE80211_MAX_FRAME_LEN + ETH_HLEN; /* Initialize the firmware */ err = hermes_init(hw); if (err != 0) { printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n", dev->name, err); goto out; } err = determine_firmware(dev); if (err != 0) { printk(KERN_ERR "%s: Incompatible firmware, aborting\n", dev->name); goto out; } if (priv->do_fw_download) { #ifdef CONFIG_HERMES_CACHE_FW_ON_INIT orinoco_cache_fw(priv, 0); #endif err = orinoco_download(priv); if (err) priv->do_fw_download = 0; /* Check firmware version again */ err = determine_firmware(dev); if (err != 0) { printk(KERN_ERR "%s: Incompatible firmware, aborting\n", dev->name); goto out; } } if (priv->has_port3) printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n", dev->name); if (priv->has_ibss) printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n", dev->name); if (priv->has_wep) { printk(KERN_DEBUG "%s: WEP supported, %s-bit key\n", dev->name, priv->has_big_wep ? "104" : "40"); } if (priv->has_wpa) { printk(KERN_DEBUG "%s: WPA-PSK supported\n", dev->name); if (orinoco_mic_init(priv)) { printk(KERN_ERR "%s: Failed to setup MIC crypto " "algorithm. Disabling WPA support\n", dev->name); priv->has_wpa = 0; } } /* Now we have the firmware capabilities, allocate appropiate * sized scan buffers */ if (orinoco_bss_data_allocate(priv)) goto out; orinoco_bss_data_init(priv); /* Get the MAC address */ err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR, ETH_ALEN, NULL, dev->dev_addr); if (err) { printk(KERN_WARNING "%s: failed to read MAC address!\n", dev->name); goto out; } printk(KERN_DEBUG "%s: MAC address %pM\n", dev->name, dev->dev_addr); /* Get the station name */ err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME, sizeof(nickbuf), &reclen, &nickbuf); if (err) { printk(KERN_ERR "%s: failed to read station name\n", dev->name); goto out; } if (nickbuf.len) len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len)); else len = min(IW_ESSID_MAX_SIZE, 2 * reclen); memcpy(priv->nick, &nickbuf.val, len); priv->nick[len] = '\0'; printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick); err = orinoco_allocate_fid(dev); if (err) { printk(KERN_ERR "%s: failed to allocate NIC buffer!\n", dev->name); goto out; } /* Get allowed channels */ err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST, &priv->channel_mask); if (err) { printk(KERN_ERR "%s: failed to read channel list!\n", dev->name); goto out; } /* Get initial AP density */ err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE, &priv->ap_density); if (err || priv->ap_density < 1 || priv->ap_density > 3) priv->has_sensitivity = 0; /* Get initial RTS threshold */ err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD, &priv->rts_thresh); if (err) { printk(KERN_ERR "%s: failed to read RTS threshold!\n", dev->name); goto out; } /* Get initial fragmentation settings */ if (priv->has_mwo) err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMWOROBUST_AGERE, &priv->mwo_robust); else err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD, &priv->frag_thresh); if (err) { printk(KERN_ERR "%s: failed to read fragmentation settings!\n", dev->name); goto out; } /* Power management setup */ if (priv->has_pm) { priv->pm_on = 0; priv->pm_mcast = 1; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMAXSLEEPDURATION, &priv->pm_period); if (err) { printk(KERN_ERR "%s: failed to read power management period!\n", dev->name); goto out; } err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, &priv->pm_timeout); if (err) { printk(KERN_ERR "%s: failed to read power management timeout!\n", dev->name); goto out; } } /* Preamble setup */ if (priv->has_preamble) { err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPREAMBLE_SYMBOL, &priv->preamble); if (err) goto out; } /* Set up the default configuration */ priv->iw_mode = IW_MODE_INFRA; /* By default use IEEE/IBSS ad-hoc mode if we have it */ priv->prefer_port3 = priv->has_port3 && (!priv->has_ibss); set_port_type(priv); priv->channel = 0; /* use firmware default */ priv->promiscuous = 0; priv->encode_alg = IW_ENCODE_ALG_NONE; priv->tx_key = 0; priv->wpa_enabled = 0; priv->tkip_cm_active = 0; priv->key_mgmt = 0; priv->wpa_ie_len = 0; priv->wpa_ie = NULL; /* Make the hardware available, as long as it hasn't been * removed elsewhere (e.g. by PCMCIA hot unplug) */ spin_lock_irq(&priv->lock); priv->hw_unavailable--; spin_unlock_irq(&priv->lock); printk(KERN_DEBUG "%s: ready\n", dev->name); out: return err; } static const struct net_device_ops orinoco_netdev_ops = { .ndo_init = orinoco_init, .ndo_open = orinoco_open, .ndo_stop = orinoco_stop, .ndo_start_xmit = orinoco_xmit, .ndo_set_multicast_list = orinoco_set_multicast_list, .ndo_change_mtu = orinoco_change_mtu, .ndo_tx_timeout = orinoco_tx_timeout, .ndo_get_stats = orinoco_get_stats, }; struct net_device *alloc_orinocodev(int sizeof_card, struct device *device, int (*hard_reset)(struct orinoco_private *), int (*stop_fw)(struct orinoco_private *, int)) { struct net_device *dev; struct orinoco_private *priv; dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card); if (!dev) return NULL; priv = netdev_priv(dev); priv->ndev = dev; if (sizeof_card) priv->card = (void *)((unsigned long)priv + sizeof(struct orinoco_private)); else priv->card = NULL; priv->dev = device; /* Setup / override net_device fields */ dev->netdev_ops = &orinoco_netdev_ops; dev->watchdog_timeo = HZ; /* 1 second timeout */ dev->ethtool_ops = &orinoco_ethtool_ops; dev->wireless_handlers = &orinoco_handler_def; #ifdef WIRELESS_SPY priv->wireless_data.spy_data = &priv->spy_data; dev->wireless_data = &priv->wireless_data; #endif /* we use the default eth_mac_addr for setting the MAC addr */ /* Reserve space in skb for the SNAP header */ dev->hard_header_len += ENCAPS_OVERHEAD; /* Set up default callbacks */ priv->hard_reset = hard_reset; priv->stop_fw = stop_fw; spin_lock_init(&priv->lock); priv->open = 0; priv->hw_unavailable = 1; /* orinoco_init() must clear this * before anything else touches the * hardware */ INIT_WORK(&priv->reset_work, orinoco_reset); INIT_WORK(&priv->join_work, orinoco_join_ap); INIT_WORK(&priv->wevent_work, orinoco_send_wevents); INIT_LIST_HEAD(&priv->rx_list); tasklet_init(&priv->rx_tasklet, orinoco_rx_isr_tasklet, (unsigned long) dev); netif_carrier_off(dev); priv->last_linkstatus = 0xffff; priv->cached_pri_fw = NULL; priv->cached_fw = NULL; /* Register PM notifiers */ priv->pm_notifier.notifier_call = orinoco_pm_notifier; register_pm_notifier(&priv->pm_notifier); return dev; } EXPORT_SYMBOL(alloc_orinocodev); void free_orinocodev(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); struct orinoco_rx_data *rx_data, *temp; /* If the tasklet is scheduled when we call tasklet_kill it * will run one final time. However the tasklet will only * drain priv->rx_list if the hw is still available. */ tasklet_kill(&priv->rx_tasklet); /* Explicitly drain priv->rx_list */ list_for_each_entry_safe(rx_data, temp, &priv->rx_list, list) { list_del(&rx_data->list); dev_kfree_skb(rx_data->skb); kfree(rx_data->desc); kfree(rx_data); } unregister_pm_notifier(&priv->pm_notifier); orinoco_uncache_fw(priv); priv->wpa_ie_len = 0; kfree(priv->wpa_ie); orinoco_mic_free(priv); orinoco_bss_data_free(priv); free_netdev(dev); } EXPORT_SYMBOL(free_orinocodev); /********************************************************************/ /* Wireless extensions */ /********************************************************************/ /* Return : < 0 -> error code ; >= 0 -> length */ static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active, char buf[IW_ESSID_MAX_SIZE+1]) { hermes_t *hw = &priv->hw; int err = 0; struct hermes_idstring essidbuf; char *p = (char *)(&essidbuf.val); int len; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if (strlen(priv->desired_essid) > 0) { /* We read the desired SSID from the hardware rather than from priv->desired_essid, just in case the firmware is allowed to change it on us. I'm not sure about this */ /* My guess is that the OWNSSID should always be whatever * we set to the card, whereas CURRENT_SSID is the one that * may change... - Jean II */ u16 rid; *active = 1; rid = (priv->port_type == 3) ? HERMES_RID_CNFOWNSSID : HERMES_RID_CNFDESIREDSSID; err = hermes_read_ltv(hw, USER_BAP, rid, sizeof(essidbuf), NULL, &essidbuf); if (err) goto fail_unlock; } else { *active = 0; err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTSSID, sizeof(essidbuf), NULL, &essidbuf); if (err) goto fail_unlock; } len = le16_to_cpu(essidbuf.len); BUG_ON(len > IW_ESSID_MAX_SIZE); memset(buf, 0, IW_ESSID_MAX_SIZE); memcpy(buf, p, len); err = len; fail_unlock: orinoco_unlock(priv, &flags); return err; } static int orinoco_hw_get_freq(struct orinoco_private *priv) { hermes_t *hw = &priv->hw; int err = 0; u16 channel; int freq = 0; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTCHANNEL, &channel); if (err) goto out; /* Intersil firmware 1.3.5 returns 0 when the interface is down */ if (channel == 0) { err = -EBUSY; goto out; } if ((channel < 1) || (channel > NUM_CHANNELS)) { printk(KERN_WARNING "%s: Channel out of range (%d)!\n", priv->ndev->name, channel); err = -EBUSY; goto out; } freq = ieee80211_dsss_chan_to_freq(channel); out: orinoco_unlock(priv, &flags); if (err > 0) err = -EBUSY; return err ? err : freq; } static int orinoco_hw_get_bitratelist(struct orinoco_private *priv, int *numrates, s32 *rates, int max) { hermes_t *hw = &priv->hw; struct hermes_idstring list; unsigned char *p = (unsigned char *)&list.val; int err = 0; int num; int i; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SUPPORTEDDATARATES, sizeof(list), NULL, &list); orinoco_unlock(priv, &flags); if (err) return err; num = le16_to_cpu(list.len); *numrates = num; num = min(num, max); for (i = 0; i < num; i++) rates[i] = (p[i] & 0x7f) * 500000; /* convert to bps */ return 0; } static int orinoco_ioctl_getname(struct net_device *dev, struct iw_request_info *info, char *name, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int numrates; int err; err = orinoco_hw_get_bitratelist(priv, &numrates, NULL, 0); if (!err && (numrates > 2)) strcpy(name, "IEEE 802.11b"); else strcpy(name, "IEEE 802.11-DS"); return 0; } static int orinoco_ioctl_setwap(struct net_device *dev, struct iw_request_info *info, struct sockaddr *ap_addr, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int err = -EINPROGRESS; /* Call commit handler */ unsigned long flags; static const u8 off_addr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; static const u8 any_addr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; /* Enable automatic roaming - no sanity checks are needed */ if (memcmp(&ap_addr->sa_data, off_addr, ETH_ALEN) == 0 || memcmp(&ap_addr->sa_data, any_addr, ETH_ALEN) == 0) { priv->bssid_fixed = 0; memset(priv->desired_bssid, 0, ETH_ALEN); /* "off" means keep existing connection */ if (ap_addr->sa_data[0] == 0) { __orinoco_hw_set_wap(priv); err = 0; } goto out; } if (priv->firmware_type == FIRMWARE_TYPE_AGERE) { printk(KERN_WARNING "%s: Lucent/Agere firmware doesn't " "support manual roaming\n", dev->name); err = -EOPNOTSUPP; goto out; } if (priv->iw_mode != IW_MODE_INFRA) { printk(KERN_WARNING "%s: Manual roaming supported only in " "managed mode\n", dev->name); err = -EOPNOTSUPP; goto out; } /* Intersil firmware hangs without Desired ESSID */ if (priv->firmware_type == FIRMWARE_TYPE_INTERSIL && strlen(priv->desired_essid) == 0) { printk(KERN_WARNING "%s: Desired ESSID must be set for " "manual roaming\n", dev->name); err = -EOPNOTSUPP; goto out; } /* Finally, enable manual roaming */ priv->bssid_fixed = 1; memcpy(priv->desired_bssid, &ap_addr->sa_data, ETH_ALEN); out: orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_getwap(struct net_device *dev, struct iw_request_info *info, struct sockaddr *ap_addr, char *extra) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err = 0; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; ap_addr->sa_family = ARPHRD_ETHER; err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID, ETH_ALEN, NULL, ap_addr->sa_data); orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_setmode(struct net_device *dev, struct iw_request_info *info, u32 *mode, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int err = -EINPROGRESS; /* Call commit handler */ unsigned long flags; if (priv->iw_mode == *mode) return 0; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; switch (*mode) { case IW_MODE_ADHOC: if (!priv->has_ibss && !priv->has_port3) err = -EOPNOTSUPP; break; case IW_MODE_INFRA: break; case IW_MODE_MONITOR: if (priv->broken_monitor && !force_monitor) { printk(KERN_WARNING "%s: Monitor mode support is " "buggy in this firmware, not enabling\n", dev->name); err = -EOPNOTSUPP; } break; default: err = -EOPNOTSUPP; break; } if (err == -EINPROGRESS) { priv->iw_mode = *mode; set_port_type(priv); } orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_getmode(struct net_device *dev, struct iw_request_info *info, u32 *mode, char *extra) { struct orinoco_private *priv = netdev_priv(dev); *mode = priv->iw_mode; return 0; } static int orinoco_ioctl_getiwrange(struct net_device *dev, struct iw_request_info *info, struct iw_point *rrq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int err = 0; struct iw_range *range = (struct iw_range *) extra; int numrates; int i, k; rrq->length = sizeof(struct iw_range); memset(range, 0, sizeof(struct iw_range)); range->we_version_compiled = WIRELESS_EXT; range->we_version_source = 22; /* Set available channels/frequencies */ range->num_channels = NUM_CHANNELS; k = 0; for (i = 0; i < NUM_CHANNELS; i++) { if (priv->channel_mask & (1 << i)) { range->freq[k].i = i + 1; range->freq[k].m = (ieee80211_dsss_chan_to_freq(i + 1) * 100000); range->freq[k].e = 1; k++; } if (k >= IW_MAX_FREQUENCIES) break; } range->num_frequency = k; range->sensitivity = 3; if (priv->has_wep) { range->max_encoding_tokens = ORINOCO_MAX_KEYS; range->encoding_size[0] = SMALL_KEY_SIZE; range->num_encoding_sizes = 1; if (priv->has_big_wep) { range->encoding_size[1] = LARGE_KEY_SIZE; range->num_encoding_sizes = 2; } } if (priv->has_wpa) range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_CIPHER_TKIP; if ((priv->iw_mode == IW_MODE_ADHOC) && (!SPY_NUMBER(priv))) { /* Quality stats meaningless in ad-hoc mode */ } else { range->max_qual.qual = 0x8b - 0x2f; range->max_qual.level = 0x2f - 0x95 - 1; range->max_qual.noise = 0x2f - 0x95 - 1; /* Need to get better values */ range->avg_qual.qual = 0x24; range->avg_qual.level = 0xC2; range->avg_qual.noise = 0x9E; } err = orinoco_hw_get_bitratelist(priv, &numrates, range->bitrate, IW_MAX_BITRATES); if (err) return err; range->num_bitrates = numrates; /* Set an indication of the max TCP throughput in bit/s that we can * expect using this interface. May be use for QoS stuff... * Jean II */ if (numrates > 2) range->throughput = 5 * 1000 * 1000; /* ~5 Mb/s */ else range->throughput = 1.5 * 1000 * 1000; /* ~1.5 Mb/s */ range->min_rts = 0; range->max_rts = 2347; range->min_frag = 256; range->max_frag = 2346; range->min_pmp = 0; range->max_pmp = 65535000; range->min_pmt = 0; range->max_pmt = 65535 * 1000; /* ??? */ range->pmp_flags = IW_POWER_PERIOD; range->pmt_flags = IW_POWER_TIMEOUT; range->pm_capa = (IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R); range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME; range->retry_flags = IW_RETRY_LIMIT; range->r_time_flags = IW_RETRY_LIFETIME; range->min_retry = 0; range->max_retry = 65535; /* ??? */ range->min_r_time = 0; range->max_r_time = 65535 * 1000; /* ??? */ if (priv->firmware_type == FIRMWARE_TYPE_AGERE) range->scan_capa = IW_SCAN_CAPA_ESSID; else range->scan_capa = IW_SCAN_CAPA_NONE; /* Event capability (kernel) */ IW_EVENT_CAPA_SET_KERNEL(range->event_capa); /* Event capability (driver) */ IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY); IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN); IW_EVENT_CAPA_SET(range->event_capa, IWEVTXDROP); return 0; } static int orinoco_ioctl_setiwencode(struct net_device *dev, struct iw_request_info *info, struct iw_point *erq, char *keybuf) { struct orinoco_private *priv = netdev_priv(dev); int index = (erq->flags & IW_ENCODE_INDEX) - 1; int setindex = priv->tx_key; int encode_alg = priv->encode_alg; int restricted = priv->wep_restrict; u16 xlen = 0; int err = -EINPROGRESS; /* Call commit handler */ unsigned long flags; if (!priv->has_wep) return -EOPNOTSUPP; if (erq->pointer) { /* We actually have a key to set - check its length */ if (erq->length > LARGE_KEY_SIZE) return -E2BIG; if ((erq->length > SMALL_KEY_SIZE) && !priv->has_big_wep) return -E2BIG; } if (orinoco_lock(priv, &flags) != 0) return -EBUSY; /* Clear any TKIP key we have */ if ((priv->has_wpa) && (priv->encode_alg == IW_ENCODE_ALG_TKIP)) (void) orinoco_clear_tkip_key(priv, setindex); if (erq->length > 0) { if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) index = priv->tx_key; /* Adjust key length to a supported value */ if (erq->length > SMALL_KEY_SIZE) xlen = LARGE_KEY_SIZE; else if (erq->length > 0) xlen = SMALL_KEY_SIZE; else xlen = 0; /* Switch on WEP if off */ if ((encode_alg != IW_ENCODE_ALG_WEP) && (xlen > 0)) { setindex = index; encode_alg = IW_ENCODE_ALG_WEP; } } else { /* Important note : if the user do "iwconfig eth0 enc off", * we will arrive there with an index of -1. This is valid * but need to be taken care off... Jean II */ if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) { if ((index != -1) || (erq->flags == 0)) { err = -EINVAL; goto out; } } else { /* Set the index : Check that the key is valid */ if (priv->keys[index].len == 0) { err = -EINVAL; goto out; } setindex = index; } } if (erq->flags & IW_ENCODE_DISABLED) encode_alg = IW_ENCODE_ALG_NONE; if (erq->flags & IW_ENCODE_OPEN) restricted = 0; if (erq->flags & IW_ENCODE_RESTRICTED) restricted = 1; if (erq->pointer && erq->length > 0) { priv->keys[index].len = cpu_to_le16(xlen); memset(priv->keys[index].data, 0, sizeof(priv->keys[index].data)); memcpy(priv->keys[index].data, keybuf, erq->length); } priv->tx_key = setindex; /* Try fast key change if connected and only keys are changed */ if ((priv->encode_alg == encode_alg) && (priv->wep_restrict == restricted) && netif_carrier_ok(dev)) { err = __orinoco_hw_setup_wepkeys(priv); /* No need to commit if successful */ goto out; } priv->encode_alg = encode_alg; priv->wep_restrict = restricted; out: orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_getiwencode(struct net_device *dev, struct iw_request_info *info, struct iw_point *erq, char *keybuf) { struct orinoco_private *priv = netdev_priv(dev); int index = (erq->flags & IW_ENCODE_INDEX) - 1; u16 xlen = 0; unsigned long flags; if (!priv->has_wep) return -EOPNOTSUPP; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) index = priv->tx_key; erq->flags = 0; if (!priv->encode_alg) erq->flags |= IW_ENCODE_DISABLED; erq->flags |= index + 1; if (priv->wep_restrict) erq->flags |= IW_ENCODE_RESTRICTED; else erq->flags |= IW_ENCODE_OPEN; xlen = le16_to_cpu(priv->keys[index].len); erq->length = xlen; memcpy(keybuf, priv->keys[index].data, ORINOCO_MAX_KEY_SIZE); orinoco_unlock(priv, &flags); return 0; } static int orinoco_ioctl_setessid(struct net_device *dev, struct iw_request_info *info, struct iw_point *erq, char *essidbuf) { struct orinoco_private *priv = netdev_priv(dev); unsigned long flags; /* Note : ESSID is ignored in Ad-Hoc demo mode, but we can set it * anyway... - Jean II */ /* Hum... Should not use Wireless Extension constant (may change), * should use our own... - Jean II */ if (erq->length > IW_ESSID_MAX_SIZE) return -E2BIG; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; /* NULL the string (for NULL termination & ESSID = ANY) - Jean II */ memset(priv->desired_essid, 0, sizeof(priv->desired_essid)); /* If not ANY, get the new ESSID */ if (erq->flags) memcpy(priv->desired_essid, essidbuf, erq->length); orinoco_unlock(priv, &flags); return -EINPROGRESS; /* Call commit handler */ } static int orinoco_ioctl_getessid(struct net_device *dev, struct iw_request_info *info, struct iw_point *erq, char *essidbuf) { struct orinoco_private *priv = netdev_priv(dev); int active; int err = 0; unsigned long flags; if (netif_running(dev)) { err = orinoco_hw_get_essid(priv, &active, essidbuf); if (err < 0) return err; erq->length = err; } else { if (orinoco_lock(priv, &flags) != 0) return -EBUSY; memcpy(essidbuf, priv->desired_essid, IW_ESSID_MAX_SIZE); erq->length = strlen(priv->desired_essid); orinoco_unlock(priv, &flags); } erq->flags = 1; return 0; } static int orinoco_ioctl_setnick(struct net_device *dev, struct iw_request_info *info, struct iw_point *nrq, char *nickbuf) { struct orinoco_private *priv = netdev_priv(dev); unsigned long flags; if (nrq->length > IW_ESSID_MAX_SIZE) return -E2BIG; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; memset(priv->nick, 0, sizeof(priv->nick)); memcpy(priv->nick, nickbuf, nrq->length); orinoco_unlock(priv, &flags); return -EINPROGRESS; /* Call commit handler */ } static int orinoco_ioctl_getnick(struct net_device *dev, struct iw_request_info *info, struct iw_point *nrq, char *nickbuf) { struct orinoco_private *priv = netdev_priv(dev); unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; memcpy(nickbuf, priv->nick, IW_ESSID_MAX_SIZE); orinoco_unlock(priv, &flags); nrq->length = strlen(priv->nick); return 0; } static int orinoco_ioctl_setfreq(struct net_device *dev, struct iw_request_info *info, struct iw_freq *frq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int chan = -1; unsigned long flags; int err = -EINPROGRESS; /* Call commit handler */ /* In infrastructure mode the AP sets the channel */ if (priv->iw_mode == IW_MODE_INFRA) return -EBUSY; if ((frq->e == 0) && (frq->m <= 1000)) { /* Setting by channel number */ chan = frq->m; } else { /* Setting by frequency */ int denom = 1; int i; /* Calculate denominator to rescale to MHz */ for (i = 0; i < (6 - frq->e); i++) denom *= 10; chan = ieee80211_freq_to_dsss_chan(frq->m / denom); } if ((chan < 1) || (chan > NUM_CHANNELS) || !(priv->channel_mask & (1 << (chan-1)))) return -EINVAL; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; priv->channel = chan; if (priv->iw_mode == IW_MODE_MONITOR) { /* Fast channel change - no commit if successful */ hermes_t *hw = &priv->hw; err = hermes_docmd_wait(hw, HERMES_CMD_TEST | HERMES_TEST_SET_CHANNEL, chan, NULL); } orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_getfreq(struct net_device *dev, struct iw_request_info *info, struct iw_freq *frq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int tmp; /* Locking done in there */ tmp = orinoco_hw_get_freq(priv); if (tmp < 0) return tmp; frq->m = tmp * 100000; frq->e = 1; return 0; } static int orinoco_ioctl_getsens(struct net_device *dev, struct iw_request_info *info, struct iw_param *srq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; u16 val; int err; unsigned long flags; if (!priv->has_sensitivity) return -EOPNOTSUPP; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE, &val); orinoco_unlock(priv, &flags); if (err) return err; srq->value = val; srq->fixed = 0; /* auto */ return 0; } static int orinoco_ioctl_setsens(struct net_device *dev, struct iw_request_info *info, struct iw_param *srq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int val = srq->value; unsigned long flags; if (!priv->has_sensitivity) return -EOPNOTSUPP; if ((val < 1) || (val > 3)) return -EINVAL; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; priv->ap_density = val; orinoco_unlock(priv, &flags); return -EINPROGRESS; /* Call commit handler */ } static int orinoco_ioctl_setrts(struct net_device *dev, struct iw_request_info *info, struct iw_param *rrq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int val = rrq->value; unsigned long flags; if (rrq->disabled) val = 2347; if ((val < 0) || (val > 2347)) return -EINVAL; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; priv->rts_thresh = val; orinoco_unlock(priv, &flags); return -EINPROGRESS; /* Call commit handler */ } static int orinoco_ioctl_getrts(struct net_device *dev, struct iw_request_info *info, struct iw_param *rrq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); rrq->value = priv->rts_thresh; rrq->disabled = (rrq->value == 2347); rrq->fixed = 1; return 0; } static int orinoco_ioctl_setfrag(struct net_device *dev, struct iw_request_info *info, struct iw_param *frq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int err = -EINPROGRESS; /* Call commit handler */ unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if (priv->has_mwo) { if (frq->disabled) priv->mwo_robust = 0; else { if (frq->fixed) printk(KERN_WARNING "%s: Fixed fragmentation " "is not supported on this firmware. " "Using MWO robust instead.\n", dev->name); priv->mwo_robust = 1; } } else { if (frq->disabled) priv->frag_thresh = 2346; else { if ((frq->value < 256) || (frq->value > 2346)) err = -EINVAL; else /* must be even */ priv->frag_thresh = frq->value & ~0x1; } } orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_getfrag(struct net_device *dev, struct iw_request_info *info, struct iw_param *frq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err; u16 val; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if (priv->has_mwo) { err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMWOROBUST_AGERE, &val); if (err) val = 0; frq->value = val ? 2347 : 0; frq->disabled = !val; frq->fixed = 0; } else { err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD, &val); if (err) val = 0; frq->value = val; frq->disabled = (val >= 2346); frq->fixed = 1; } orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_setrate(struct net_device *dev, struct iw_request_info *info, struct iw_param *rrq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int ratemode; int bitrate; /* 100s of kilobits */ unsigned long flags; /* As the user space doesn't know our highest rate, it uses -1 * to ask us to set the highest rate. Test it using "iwconfig * ethX rate auto" - Jean II */ if (rrq->value == -1) bitrate = 110; else { if (rrq->value % 100000) return -EINVAL; bitrate = rrq->value / 100000; } ratemode = orinoco_get_bitratemode(bitrate, !rrq->fixed); if (ratemode == -1) return -EINVAL; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; priv->bitratemode = ratemode; orinoco_unlock(priv, &flags); return -EINPROGRESS; } static int orinoco_ioctl_getrate(struct net_device *dev, struct iw_request_info *info, struct iw_param *rrq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int err = 0; int bitrate, automatic; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; orinoco_get_ratemode_cfg(priv->bitratemode, &bitrate, &automatic); /* If the interface is running we try to find more about the current mode */ if (netif_running(dev)) err = orinoco_hw_get_act_bitrate(priv, &bitrate); orinoco_unlock(priv, &flags); rrq->value = bitrate; rrq->fixed = !automatic; rrq->disabled = 0; return err; } static int orinoco_ioctl_setpower(struct net_device *dev, struct iw_request_info *info, struct iw_param *prq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int err = -EINPROGRESS; /* Call commit handler */ unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if (prq->disabled) { priv->pm_on = 0; } else { switch (prq->flags & IW_POWER_MODE) { case IW_POWER_UNICAST_R: priv->pm_mcast = 0; priv->pm_on = 1; break; case IW_POWER_ALL_R: priv->pm_mcast = 1; priv->pm_on = 1; break; case IW_POWER_ON: /* No flags : but we may have a value - Jean II */ break; default: err = -EINVAL; goto out; } if (prq->flags & IW_POWER_TIMEOUT) { priv->pm_on = 1; priv->pm_timeout = prq->value / 1000; } if (prq->flags & IW_POWER_PERIOD) { priv->pm_on = 1; priv->pm_period = prq->value / 1000; } /* It's valid to not have a value if we are just toggling * the flags... Jean II */ if (!priv->pm_on) { err = -EINVAL; goto out; } } out: orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_getpower(struct net_device *dev, struct iw_request_info *info, struct iw_param *prq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err = 0; u16 enable, period, timeout, mcast; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMENABLED, &enable); if (err) goto out; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMAXSLEEPDURATION, &period); if (err) goto out; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, &timeout); if (err) goto out; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMULTICASTRECEIVE, &mcast); if (err) goto out; prq->disabled = !enable; /* Note : by default, display the period */ if ((prq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) { prq->flags = IW_POWER_TIMEOUT; prq->value = timeout * 1000; } else { prq->flags = IW_POWER_PERIOD; prq->value = period * 1000; } if (mcast) prq->flags |= IW_POWER_ALL_R; else prq->flags |= IW_POWER_UNICAST_R; out: orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_set_encodeext(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); struct iw_point *encoding = &wrqu->encoding; struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; int idx, alg = ext->alg, set_key = 1; unsigned long flags; int err = -EINVAL; u16 key_len; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; /* Determine and validate the key index */ idx = encoding->flags & IW_ENCODE_INDEX; if (idx) { if ((idx < 1) || (idx > 4)) goto out; idx--; } else idx = priv->tx_key; if (encoding->flags & IW_ENCODE_DISABLED) alg = IW_ENCODE_ALG_NONE; if (priv->has_wpa && (alg != IW_ENCODE_ALG_TKIP)) { /* Clear any TKIP TX key we had */ (void) orinoco_clear_tkip_key(priv, priv->tx_key); } if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { priv->tx_key = idx; set_key = ((alg == IW_ENCODE_ALG_TKIP) || (ext->key_len > 0)) ? 1 : 0; } if (set_key) { /* Set the requested key first */ switch (alg) { case IW_ENCODE_ALG_NONE: priv->encode_alg = alg; priv->keys[idx].len = 0; break; case IW_ENCODE_ALG_WEP: if (ext->key_len > SMALL_KEY_SIZE) key_len = LARGE_KEY_SIZE; else if (ext->key_len > 0) key_len = SMALL_KEY_SIZE; else goto out; priv->encode_alg = alg; priv->keys[idx].len = cpu_to_le16(key_len); key_len = min(ext->key_len, key_len); memset(priv->keys[idx].data, 0, ORINOCO_MAX_KEY_SIZE); memcpy(priv->keys[idx].data, ext->key, key_len); break; case IW_ENCODE_ALG_TKIP: { hermes_t *hw = &priv->hw; u8 *tkip_iv = NULL; if (!priv->has_wpa || (ext->key_len > sizeof(priv->tkip_key[0]))) goto out; priv->encode_alg = alg; memset(&priv->tkip_key[idx], 0, sizeof(priv->tkip_key[idx])); memcpy(&priv->tkip_key[idx], ext->key, ext->key_len); if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) tkip_iv = &ext->rx_seq[0]; err = __orinoco_hw_set_tkip_key(hw, idx, ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, (u8 *) &priv->tkip_key[idx], tkip_iv, NULL); if (err) printk(KERN_ERR "%s: Error %d setting TKIP key" "\n", dev->name, err); goto out; } default: goto out; } } err = -EINPROGRESS; out: orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_get_encodeext(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); struct iw_point *encoding = &wrqu->encoding; struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; int idx, max_key_len; unsigned long flags; int err; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = -EINVAL; max_key_len = encoding->length - sizeof(*ext); if (max_key_len < 0) goto out; idx = encoding->flags & IW_ENCODE_INDEX; if (idx) { if ((idx < 1) || (idx > 4)) goto out; idx--; } else idx = priv->tx_key; encoding->flags = idx + 1; memset(ext, 0, sizeof(*ext)); ext->alg = priv->encode_alg; switch (priv->encode_alg) { case IW_ENCODE_ALG_NONE: ext->key_len = 0; encoding->flags |= IW_ENCODE_DISABLED; break; case IW_ENCODE_ALG_WEP: ext->key_len = min_t(u16, le16_to_cpu(priv->keys[idx].len), max_key_len); memcpy(ext->key, priv->keys[idx].data, ext->key_len); encoding->flags |= IW_ENCODE_ENABLED; break; case IW_ENCODE_ALG_TKIP: ext->key_len = min_t(u16, sizeof(struct orinoco_tkip_key), max_key_len); memcpy(ext->key, &priv->tkip_key[idx], ext->key_len); encoding->flags |= IW_ENCODE_ENABLED; break; } err = 0; out: orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_set_auth(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; struct iw_param *param = &wrqu->param; unsigned long flags; int ret = -EINPROGRESS; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; switch (param->flags & IW_AUTH_INDEX) { case IW_AUTH_WPA_VERSION: case IW_AUTH_CIPHER_PAIRWISE: case IW_AUTH_CIPHER_GROUP: case IW_AUTH_RX_UNENCRYPTED_EAPOL: case IW_AUTH_PRIVACY_INVOKED: case IW_AUTH_DROP_UNENCRYPTED: /* * orinoco does not use these parameters */ break; case IW_AUTH_KEY_MGMT: /* wl_lkm implies value 2 == PSK for Hermes I * which ties in with WEXT * no other hints tho :( */ priv->key_mgmt = param->value; break; case IW_AUTH_TKIP_COUNTERMEASURES: /* When countermeasures are enabled, shut down the * card; when disabled, re-enable the card. This must * take effect immediately. * * TODO: Make sure that the EAPOL message is getting * out before card disabled */ if (param->value) { priv->tkip_cm_active = 1; ret = hermes_enable_port(hw, 0); } else { priv->tkip_cm_active = 0; ret = hermes_disable_port(hw, 0); } break; case IW_AUTH_80211_AUTH_ALG: if (param->value & IW_AUTH_ALG_SHARED_KEY) priv->wep_restrict = 1; else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) priv->wep_restrict = 0; else ret = -EINVAL; break; case IW_AUTH_WPA_ENABLED: if (priv->has_wpa) { priv->wpa_enabled = param->value ? 1 : 0; } else { if (param->value) ret = -EOPNOTSUPP; /* else silently accept disable of WPA */ priv->wpa_enabled = 0; } break; default: ret = -EOPNOTSUPP; } orinoco_unlock(priv, &flags); return ret; } static int orinoco_ioctl_get_auth(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); struct iw_param *param = &wrqu->param; unsigned long flags; int ret = 0; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; switch (param->flags & IW_AUTH_INDEX) { case IW_AUTH_KEY_MGMT: param->value = priv->key_mgmt; break; case IW_AUTH_TKIP_COUNTERMEASURES: param->value = priv->tkip_cm_active; break; case IW_AUTH_80211_AUTH_ALG: if (priv->wep_restrict) param->value = IW_AUTH_ALG_SHARED_KEY; else param->value = IW_AUTH_ALG_OPEN_SYSTEM; break; case IW_AUTH_WPA_ENABLED: param->value = priv->wpa_enabled; break; default: ret = -EOPNOTSUPP; } orinoco_unlock(priv, &flags); return ret; } static int orinoco_ioctl_set_genie(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); u8 *buf; unsigned long flags; /* cut off at IEEE80211_MAX_DATA_LEN */ if ((wrqu->data.length > IEEE80211_MAX_DATA_LEN) || (wrqu->data.length && (extra == NULL))) return -EINVAL; if (wrqu->data.length) { buf = kmalloc(wrqu->data.length, GFP_KERNEL); if (buf == NULL) return -ENOMEM; memcpy(buf, extra, wrqu->data.length); } else buf = NULL; if (orinoco_lock(priv, &flags) != 0) { kfree(buf); return -EBUSY; } kfree(priv->wpa_ie); priv->wpa_ie = buf; priv->wpa_ie_len = wrqu->data.length; if (priv->wpa_ie) { /* Looks like wl_lkm wants to check the auth alg, and * somehow pass it to the firmware. * Instead it just calls the key mgmt rid * - we do this in set auth. */ } orinoco_unlock(priv, &flags); return 0; } static int orinoco_ioctl_get_genie(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); unsigned long flags; int err = 0; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if ((priv->wpa_ie_len == 0) || (priv->wpa_ie == NULL)) { wrqu->data.length = 0; goto out; } if (wrqu->data.length < priv->wpa_ie_len) { err = -E2BIG; goto out; } wrqu->data.length = priv->wpa_ie_len; memcpy(extra, priv->wpa_ie, priv->wpa_ie_len); out: orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_set_mlme(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; struct iw_mlme *mlme = (struct iw_mlme *)extra; unsigned long flags; int ret = 0; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; switch (mlme->cmd) { case IW_MLME_DEAUTH: /* silently ignore */ break; case IW_MLME_DISASSOC: { struct { u8 addr[ETH_ALEN]; __le16 reason_code; } __attribute__ ((packed)) buf; memcpy(buf.addr, mlme->addr.sa_data, ETH_ALEN); buf.reason_code = cpu_to_le16(mlme->reason_code); ret = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFDISASSOCIATE, &buf); break; } default: ret = -EOPNOTSUPP; } orinoco_unlock(priv, &flags); return ret; } static int orinoco_ioctl_getretry(struct net_device *dev, struct iw_request_info *info, struct iw_param *rrq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err = 0; u16 short_limit, long_limit, lifetime; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_SHORTRETRYLIMIT, &short_limit); if (err) goto out; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_LONGRETRYLIMIT, &long_limit); if (err) goto out; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_MAXTRANSMITLIFETIME, &lifetime); if (err) goto out; rrq->disabled = 0; /* Can't be disabled */ /* Note : by default, display the retry number */ if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) { rrq->flags = IW_RETRY_LIFETIME; rrq->value = lifetime * 1000; /* ??? */ } else { /* By default, display the min number */ if ((rrq->flags & IW_RETRY_LONG)) { rrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; rrq->value = long_limit; } else { rrq->flags = IW_RETRY_LIMIT; rrq->value = short_limit; if (short_limit != long_limit) rrq->flags |= IW_RETRY_SHORT; } } out: orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_reset(struct net_device *dev, struct iw_request_info *info, void *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); if (!capable(CAP_NET_ADMIN)) return -EPERM; if (info->cmd == (SIOCIWFIRSTPRIV + 0x1)) { printk(KERN_DEBUG "%s: Forcing reset!\n", dev->name); /* Firmware reset */ orinoco_reset(&priv->reset_work); } else { printk(KERN_DEBUG "%s: Force scheduling reset!\n", dev->name); schedule_work(&priv->reset_work); } return 0; } static int orinoco_ioctl_setibssport(struct net_device *dev, struct iw_request_info *info, void *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int val = *((int *) extra); unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; priv->ibss_port = val ; /* Actually update the mode we are using */ set_port_type(priv); orinoco_unlock(priv, &flags); return -EINPROGRESS; /* Call commit handler */ } static int orinoco_ioctl_getibssport(struct net_device *dev, struct iw_request_info *info, void *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int *val = (int *) extra; *val = priv->ibss_port; return 0; } static int orinoco_ioctl_setport3(struct net_device *dev, struct iw_request_info *info, void *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int val = *((int *) extra); int err = 0; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; switch (val) { case 0: /* Try to do IEEE ad-hoc mode */ if (!priv->has_ibss) { err = -EINVAL; break; } priv->prefer_port3 = 0; break; case 1: /* Try to do Lucent proprietary ad-hoc mode */ if (!priv->has_port3) { err = -EINVAL; break; } priv->prefer_port3 = 1; break; default: err = -EINVAL; } if (!err) { /* Actually update the mode we are using */ set_port_type(priv); err = -EINPROGRESS; } orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_getport3(struct net_device *dev, struct iw_request_info *info, void *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int *val = (int *) extra; *val = priv->prefer_port3; return 0; } static int orinoco_ioctl_setpreamble(struct net_device *dev, struct iw_request_info *info, void *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); unsigned long flags; int val; if (!priv->has_preamble) return -EOPNOTSUPP; /* 802.11b has recently defined some short preamble. * Basically, the Phy header has been reduced in size. * This increase performance, especially at high rates * (the preamble is transmitted at 1Mb/s), unfortunately * this give compatibility troubles... - Jean II */ val = *((int *) extra); if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if (val) priv->preamble = 1; else priv->preamble = 0; orinoco_unlock(priv, &flags); return -EINPROGRESS; /* Call commit handler */ } static int orinoco_ioctl_getpreamble(struct net_device *dev, struct iw_request_info *info, void *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int *val = (int *) extra; if (!priv->has_preamble) return -EOPNOTSUPP; *val = priv->preamble; return 0; } /* ioctl interface to hermes_read_ltv() * To use with iwpriv, pass the RID as the token argument, e.g. * iwpriv get_rid [0xfc00] * At least Wireless Tools 25 is required to use iwpriv. * For Wireless Tools 25 and 26 append "dummy" are the end. */ static int orinoco_ioctl_getrid(struct net_device *dev, struct iw_request_info *info, struct iw_point *data, char *extra) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int rid = data->flags; u16 length; int err; unsigned long flags; /* It's a "get" function, but we don't want users to access the * WEP key and other raw firmware data */ if (!capable(CAP_NET_ADMIN)) return -EPERM; if (rid < 0xfc00 || rid > 0xffff) return -EINVAL; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = hermes_read_ltv(hw, USER_BAP, rid, MAX_RID_LEN, &length, extra); if (err) goto out; data->length = min_t(u16, HERMES_RECLEN_TO_BYTES(length), MAX_RID_LEN); out: orinoco_unlock(priv, &flags); return err; } /* Trigger a scan (look for other cells in the vicinity) */ static int orinoco_ioctl_setscan(struct net_device *dev, struct iw_request_info *info, struct iw_point *srq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; struct iw_scan_req *si = (struct iw_scan_req *) extra; int err = 0; unsigned long flags; /* Note : you may have realised that, as this is a SET operation, * this is privileged and therefore a normal user can't * perform scanning. * This is not an error, while the device perform scanning, * traffic doesn't flow, so it's a perfect DoS... * Jean II */ if (orinoco_lock(priv, &flags) != 0) return -EBUSY; /* Scanning with port 0 disabled would fail */ if (!netif_running(dev)) { err = -ENETDOWN; goto out; } /* In monitor mode, the scan results are always empty. * Probe responses are passed to the driver as received * frames and could be processed in software. */ if (priv->iw_mode == IW_MODE_MONITOR) { err = -EOPNOTSUPP; goto out; } /* Note : because we don't lock out the irq handler, the way * we access scan variables in priv is critical. * o scan_inprogress : not touched by irq handler * o scan_mode : not touched by irq handler * Before modifying anything on those variables, please think hard ! * Jean II */ /* Save flags */ priv->scan_mode = srq->flags; /* Always trigger scanning, even if it's in progress. * This way, if the info frame get lost, we will recover somewhat * gracefully - Jean II */ if (priv->has_hostscan) { switch (priv->firmware_type) { case FIRMWARE_TYPE_SYMBOL: err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFHOSTSCAN_SYMBOL, HERMES_HOSTSCAN_SYMBOL_ONCE | HERMES_HOSTSCAN_SYMBOL_BCAST); break; case FIRMWARE_TYPE_INTERSIL: { __le16 req[3]; req[0] = cpu_to_le16(0x3fff); /* All channels */ req[1] = cpu_to_le16(0x0001); /* rate 1 Mbps */ req[2] = 0; /* Any ESSID */ err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFHOSTSCAN, &req); } break; case FIRMWARE_TYPE_AGERE: if (priv->scan_mode & IW_SCAN_THIS_ESSID) { struct hermes_idstring idbuf; size_t len = min(sizeof(idbuf.val), (size_t) si->essid_len); idbuf.len = cpu_to_le16(len); memcpy(idbuf.val, si->essid, len); err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFSCANSSID_AGERE, HERMES_BYTES_TO_RECLEN(len + 2), &idbuf); } else err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFSCANSSID_AGERE, 0); /* Any ESSID */ if (err) break; if (priv->has_ext_scan) { /* Clear scan results at the start of * an extended scan */ orinoco_clear_scan_results(priv, msecs_to_jiffies(15000)); /* TODO: Is this available on older firmware? * Can we use it to scan specific channels * for IW_SCAN_THIS_FREQ? */ err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFSCANCHANNELS2GHZ, 0x7FFF); if (err) goto out; err = hermes_inquire(hw, HERMES_INQ_CHANNELINFO); } else err = hermes_inquire(hw, HERMES_INQ_SCAN); break; } } else err = hermes_inquire(hw, HERMES_INQ_SCAN); /* One more client */ if (!err) priv->scan_inprogress = 1; out: orinoco_unlock(priv, &flags); return err; } #define MAX_CUSTOM_LEN 64 /* Translate scan data returned from the card to a card independant * format that the Wireless Tools will understand - Jean II */ static inline char *orinoco_translate_scan(struct net_device *dev, struct iw_request_info *info, char *current_ev, char *end_buf, union hermes_scan_info *bss, unsigned long last_scanned) { struct orinoco_private *priv = netdev_priv(dev); u16 capabilities; u16 channel; struct iw_event iwe; /* Temporary buffer */ char custom[MAX_CUSTOM_LEN]; memset(&iwe, 0, sizeof(iwe)); /* First entry *MUST* be the AP MAC address */ iwe.cmd = SIOCGIWAP; iwe.u.ap_addr.sa_family = ARPHRD_ETHER; memcpy(iwe.u.ap_addr.sa_data, bss->a.bssid, ETH_ALEN); current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_ADDR_LEN); /* Other entries will be displayed in the order we give them */ /* Add the ESSID */ iwe.u.data.length = le16_to_cpu(bss->a.essid_len); if (iwe.u.data.length > 32) iwe.u.data.length = 32; iwe.cmd = SIOCGIWESSID; iwe.u.data.flags = 1; current_ev = iwe_stream_add_point(info, current_ev, end_buf, &iwe, bss->a.essid); /* Add mode */ iwe.cmd = SIOCGIWMODE; capabilities = le16_to_cpu(bss->a.capabilities); if (capabilities & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) { if (capabilities & WLAN_CAPABILITY_ESS) iwe.u.mode = IW_MODE_MASTER; else iwe.u.mode = IW_MODE_ADHOC; current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_UINT_LEN); } channel = bss->s.channel; if ((channel >= 1) && (channel <= NUM_CHANNELS)) { /* Add channel and frequency */ iwe.cmd = SIOCGIWFREQ; iwe.u.freq.m = channel; iwe.u.freq.e = 0; current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_FREQ_LEN); iwe.u.freq.m = ieee80211_dsss_chan_to_freq(channel) * 100000; iwe.u.freq.e = 1; current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_FREQ_LEN); } /* Add quality statistics. level and noise in dB. No link quality */ iwe.cmd = IWEVQUAL; iwe.u.qual.updated = IW_QUAL_DBM | IW_QUAL_QUAL_INVALID; iwe.u.qual.level = (__u8) le16_to_cpu(bss->a.level) - 0x95; iwe.u.qual.noise = (__u8) le16_to_cpu(bss->a.noise) - 0x95; /* Wireless tools prior to 27.pre22 will show link quality * anyway, so we provide a reasonable value. */ if (iwe.u.qual.level > iwe.u.qual.noise) iwe.u.qual.qual = iwe.u.qual.level - iwe.u.qual.noise; else iwe.u.qual.qual = 0; current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_QUAL_LEN); /* Add encryption capability */ iwe.cmd = SIOCGIWENCODE; if (capabilities & WLAN_CAPABILITY_PRIVACY) iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; else iwe.u.data.flags = IW_ENCODE_DISABLED; iwe.u.data.length = 0; current_ev = iwe_stream_add_point(info, current_ev, end_buf, &iwe, NULL); /* Bit rate is not available in Lucent/Agere firmwares */ if (priv->firmware_type != FIRMWARE_TYPE_AGERE) { char *current_val = current_ev + iwe_stream_lcp_len(info); int i; int step; if (priv->firmware_type == FIRMWARE_TYPE_SYMBOL) step = 2; else step = 1; iwe.cmd = SIOCGIWRATE; /* Those two flags are ignored... */ iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; /* Max 10 values */ for (i = 0; i < 10; i += step) { /* NULL terminated */ if (bss->p.rates[i] == 0x0) break; /* Bit rate given in 500 kb/s units (+ 0x80) */ iwe.u.bitrate.value = ((bss->p.rates[i] & 0x7f) * 500000); current_val = iwe_stream_add_value(info, current_ev, current_val, end_buf, &iwe, IW_EV_PARAM_LEN); } /* Check if we added any event */ if ((current_val - current_ev) > iwe_stream_lcp_len(info)) current_ev = current_val; } /* Beacon interval */ iwe.cmd = IWEVCUSTOM; iwe.u.data.length = snprintf(custom, MAX_CUSTOM_LEN, "bcn_int=%d", le16_to_cpu(bss->a.beacon_interv)); if (iwe.u.data.length) current_ev = iwe_stream_add_point(info, current_ev, end_buf, &iwe, custom); /* Capabilites */ iwe.cmd = IWEVCUSTOM; iwe.u.data.length = snprintf(custom, MAX_CUSTOM_LEN, "capab=0x%04x", capabilities); if (iwe.u.data.length) current_ev = iwe_stream_add_point(info, current_ev, end_buf, &iwe, custom); /* Add EXTRA: Age to display seconds since last beacon/probe response * for given network. */ iwe.cmd = IWEVCUSTOM; iwe.u.data.length = snprintf(custom, MAX_CUSTOM_LEN, " Last beacon: %dms ago", jiffies_to_msecs(jiffies - last_scanned)); if (iwe.u.data.length) current_ev = iwe_stream_add_point(info, current_ev, end_buf, &iwe, custom); return current_ev; } static inline char *orinoco_translate_ext_scan(struct net_device *dev, struct iw_request_info *info, char *current_ev, char *end_buf, struct agere_ext_scan_info *bss, unsigned long last_scanned) { u16 capabilities; u16 channel; struct iw_event iwe; /* Temporary buffer */ char custom[MAX_CUSTOM_LEN]; u8 *ie; memset(&iwe, 0, sizeof(iwe)); /* First entry *MUST* be the AP MAC address */ iwe.cmd = SIOCGIWAP; iwe.u.ap_addr.sa_family = ARPHRD_ETHER; memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN); current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_ADDR_LEN); /* Other entries will be displayed in the order we give them */ /* Add the ESSID */ ie = bss->data; iwe.u.data.length = ie[1]; if (iwe.u.data.length) { if (iwe.u.data.length > 32) iwe.u.data.length = 32; iwe.cmd = SIOCGIWESSID; iwe.u.data.flags = 1; current_ev = iwe_stream_add_point(info, current_ev, end_buf, &iwe, &ie[2]); } /* Add mode */ capabilities = le16_to_cpu(bss->capabilities); if (capabilities & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) { iwe.cmd = SIOCGIWMODE; if (capabilities & WLAN_CAPABILITY_ESS) iwe.u.mode = IW_MODE_MASTER; else iwe.u.mode = IW_MODE_ADHOC; current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_UINT_LEN); } ie = orinoco_get_ie(bss->data, sizeof(bss->data), WLAN_EID_DS_PARAMS); channel = ie ? ie[2] : 0; if ((channel >= 1) && (channel <= NUM_CHANNELS)) { /* Add channel and frequency */ iwe.cmd = SIOCGIWFREQ; iwe.u.freq.m = channel; iwe.u.freq.e = 0; current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_FREQ_LEN); iwe.u.freq.m = ieee80211_dsss_chan_to_freq(channel) * 100000; iwe.u.freq.e = 1; current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_FREQ_LEN); } /* Add quality statistics. level and noise in dB. No link quality */ iwe.cmd = IWEVQUAL; iwe.u.qual.updated = IW_QUAL_DBM | IW_QUAL_QUAL_INVALID; iwe.u.qual.level = bss->level - 0x95; iwe.u.qual.noise = bss->noise - 0x95; /* Wireless tools prior to 27.pre22 will show link quality * anyway, so we provide a reasonable value. */ if (iwe.u.qual.level > iwe.u.qual.noise) iwe.u.qual.qual = iwe.u.qual.level - iwe.u.qual.noise; else iwe.u.qual.qual = 0; current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_QUAL_LEN); /* Add encryption capability */ iwe.cmd = SIOCGIWENCODE; if (capabilities & WLAN_CAPABILITY_PRIVACY) iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; else iwe.u.data.flags = IW_ENCODE_DISABLED; iwe.u.data.length = 0; current_ev = iwe_stream_add_point(info, current_ev, end_buf, &iwe, NULL); /* WPA IE */ ie = orinoco_get_wpa_ie(bss->data, sizeof(bss->data)); if (ie) { iwe.cmd = IWEVGENIE; iwe.u.data.length = ie[1] + 2; current_ev = iwe_stream_add_point(info, current_ev, end_buf, &iwe, ie); } /* RSN IE */ ie = orinoco_get_ie(bss->data, sizeof(bss->data), WLAN_EID_RSN); if (ie) { iwe.cmd = IWEVGENIE; iwe.u.data.length = ie[1] + 2; current_ev = iwe_stream_add_point(info, current_ev, end_buf, &iwe, ie); } ie = orinoco_get_ie(bss->data, sizeof(bss->data), WLAN_EID_SUPP_RATES); if (ie) { char *p = current_ev + iwe_stream_lcp_len(info); int i; iwe.cmd = SIOCGIWRATE; /* Those two flags are ignored... */ iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; for (i = 2; i < (ie[1] + 2); i++) { iwe.u.bitrate.value = ((ie[i] & 0x7F) * 500000); p = iwe_stream_add_value(info, current_ev, p, end_buf, &iwe, IW_EV_PARAM_LEN); } /* Check if we added any event */ if (p > (current_ev + iwe_stream_lcp_len(info))) current_ev = p; } /* Timestamp */ iwe.cmd = IWEVCUSTOM; iwe.u.data.length = snprintf(custom, MAX_CUSTOM_LEN, "tsf=%016llx", (unsigned long long) le64_to_cpu(bss->timestamp)); if (iwe.u.data.length) current_ev = iwe_stream_add_point(info, current_ev, end_buf, &iwe, custom); /* Beacon interval */ iwe.cmd = IWEVCUSTOM; iwe.u.data.length = snprintf(custom, MAX_CUSTOM_LEN, "bcn_int=%d", le16_to_cpu(bss->beacon_interval)); if (iwe.u.data.length) current_ev = iwe_stream_add_point(info, current_ev, end_buf, &iwe, custom); /* Capabilites */ iwe.cmd = IWEVCUSTOM; iwe.u.data.length = snprintf(custom, MAX_CUSTOM_LEN, "capab=0x%04x", capabilities); if (iwe.u.data.length) current_ev = iwe_stream_add_point(info, current_ev, end_buf, &iwe, custom); /* Add EXTRA: Age to display seconds since last beacon/probe response * for given network. */ iwe.cmd = IWEVCUSTOM; iwe.u.data.length = snprintf(custom, MAX_CUSTOM_LEN, " Last beacon: %dms ago", jiffies_to_msecs(jiffies - last_scanned)); if (iwe.u.data.length) current_ev = iwe_stream_add_point(info, current_ev, end_buf, &iwe, custom); return current_ev; } /* Return results of a scan */ static int orinoco_ioctl_getscan(struct net_device *dev, struct iw_request_info *info, struct iw_point *srq, char *extra) { struct orinoco_private *priv = netdev_priv(dev); int err = 0; unsigned long flags; char *current_ev = extra; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if (priv->scan_inprogress) { /* 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. * Second, we grab some rtnetlink lock before comming * here (in dev_ioctl()). * Third, we generate an Wireless Event, so the * caller can wait itself on that - Jean II */ err = -EAGAIN; goto out; } if (priv->has_ext_scan) { struct xbss_element *bss; list_for_each_entry(bss, &priv->bss_list, list) { /* Translate this entry to WE format */ current_ev = orinoco_translate_ext_scan(dev, info, current_ev, extra + srq->length, &bss->bss, bss->last_scanned); /* Check if there is space for one more entry */ if ((extra + srq->length - current_ev) <= IW_EV_ADDR_LEN) { /* Ask user space to try again with a * bigger buffer */ err = -E2BIG; goto out; } } } else { struct bss_element *bss; list_for_each_entry(bss, &priv->bss_list, list) { /* Translate this entry to WE format */ current_ev = orinoco_translate_scan(dev, info, current_ev, extra + srq->length, &bss->bss, bss->last_scanned); /* Check if there is space for one more entry */ if ((extra + srq->length - current_ev) <= IW_EV_ADDR_LEN) { /* Ask user space to try again with a * bigger buffer */ err = -E2BIG; goto out; } } } srq->length = (current_ev - extra); srq->flags = (__u16) priv->scan_mode; out: orinoco_unlock(priv, &flags); return err; } /* Commit handler, called after set operations */ static int orinoco_ioctl_commit(struct net_device *dev, struct iw_request_info *info, void *wrqu, char *extra) { struct orinoco_private *priv = netdev_priv(dev); struct hermes *hw = &priv->hw; unsigned long flags; int err = 0; if (!priv->open) return 0; if (priv->broken_disableport) { orinoco_reset(&priv->reset_work); return 0; } if (orinoco_lock(priv, &flags) != 0) return err; err = hermes_disable_port(hw, 0); if (err) { printk(KERN_WARNING "%s: Unable to disable port " "while reconfiguring card\n", dev->name); priv->broken_disableport = 1; goto out; } err = __orinoco_program_rids(dev); if (err) { printk(KERN_WARNING "%s: Unable to reconfigure card\n", dev->name); goto out; } err = hermes_enable_port(hw, 0); if (err) { printk(KERN_WARNING "%s: Unable to enable port while reconfiguring card\n", dev->name); goto out; } out: if (err) { printk(KERN_WARNING "%s: Resetting instead...\n", dev->name); schedule_work(&priv->reset_work); err = 0; } orinoco_unlock(priv, &flags); return err; } static const struct iw_priv_args orinoco_privtab[] = { { SIOCIWFIRSTPRIV + 0x0, 0, 0, "force_reset" }, { SIOCIWFIRSTPRIV + 0x1, 0, 0, "card_reset" }, { SIOCIWFIRSTPRIV + 0x2, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_port3" }, { SIOCIWFIRSTPRIV + 0x3, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_port3" }, { SIOCIWFIRSTPRIV + 0x4, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble" }, { SIOCIWFIRSTPRIV + 0x5, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_preamble" }, { SIOCIWFIRSTPRIV + 0x6, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_ibssport" }, { SIOCIWFIRSTPRIV + 0x7, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_ibssport" }, { SIOCIWFIRSTPRIV + 0x9, 0, IW_PRIV_TYPE_BYTE | MAX_RID_LEN, "get_rid" }, }; /* * Structures to export the Wireless Handlers */ #define STD_IW_HANDLER(id, func) \ [IW_IOCTL_IDX(id)] = (iw_handler) func static const iw_handler orinoco_handler[] = { STD_IW_HANDLER(SIOCSIWCOMMIT, orinoco_ioctl_commit), STD_IW_HANDLER(SIOCGIWNAME, orinoco_ioctl_getname), STD_IW_HANDLER(SIOCSIWFREQ, orinoco_ioctl_setfreq), STD_IW_HANDLER(SIOCGIWFREQ, orinoco_ioctl_getfreq), STD_IW_HANDLER(SIOCSIWMODE, orinoco_ioctl_setmode), STD_IW_HANDLER(SIOCGIWMODE, orinoco_ioctl_getmode), STD_IW_HANDLER(SIOCSIWSENS, orinoco_ioctl_setsens), STD_IW_HANDLER(SIOCGIWSENS, orinoco_ioctl_getsens), STD_IW_HANDLER(SIOCGIWRANGE, orinoco_ioctl_getiwrange), STD_IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy), STD_IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy), STD_IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy), STD_IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy), STD_IW_HANDLER(SIOCSIWAP, orinoco_ioctl_setwap), STD_IW_HANDLER(SIOCGIWAP, orinoco_ioctl_getwap), STD_IW_HANDLER(SIOCSIWSCAN, orinoco_ioctl_setscan), STD_IW_HANDLER(SIOCGIWSCAN, orinoco_ioctl_getscan), STD_IW_HANDLER(SIOCSIWESSID, orinoco_ioctl_setessid), STD_IW_HANDLER(SIOCGIWESSID, orinoco_ioctl_getessid), STD_IW_HANDLER(SIOCSIWNICKN, orinoco_ioctl_setnick), STD_IW_HANDLER(SIOCGIWNICKN, orinoco_ioctl_getnick), STD_IW_HANDLER(SIOCSIWRATE, orinoco_ioctl_setrate), STD_IW_HANDLER(SIOCGIWRATE, orinoco_ioctl_getrate), STD_IW_HANDLER(SIOCSIWRTS, orinoco_ioctl_setrts), STD_IW_HANDLER(SIOCGIWRTS, orinoco_ioctl_getrts), STD_IW_HANDLER(SIOCSIWFRAG, orinoco_ioctl_setfrag), STD_IW_HANDLER(SIOCGIWFRAG, orinoco_ioctl_getfrag), STD_IW_HANDLER(SIOCGIWRETRY, orinoco_ioctl_getretry), STD_IW_HANDLER(SIOCSIWENCODE, orinoco_ioctl_setiwencode), STD_IW_HANDLER(SIOCGIWENCODE, orinoco_ioctl_getiwencode), STD_IW_HANDLER(SIOCSIWPOWER, orinoco_ioctl_setpower), STD_IW_HANDLER(SIOCGIWPOWER, orinoco_ioctl_getpower), STD_IW_HANDLER(SIOCSIWGENIE, orinoco_ioctl_set_genie), STD_IW_HANDLER(SIOCGIWGENIE, orinoco_ioctl_get_genie), STD_IW_HANDLER(SIOCSIWMLME, orinoco_ioctl_set_mlme), STD_IW_HANDLER(SIOCSIWAUTH, orinoco_ioctl_set_auth), STD_IW_HANDLER(SIOCGIWAUTH, orinoco_ioctl_get_auth), STD_IW_HANDLER(SIOCSIWENCODEEXT, orinoco_ioctl_set_encodeext), STD_IW_HANDLER(SIOCGIWENCODEEXT, orinoco_ioctl_get_encodeext), }; /* Added typecasting since we no longer use iwreq_data -- Moustafa */ static const iw_handler orinoco_private_handler[] = { [0] = (iw_handler) orinoco_ioctl_reset, [1] = (iw_handler) orinoco_ioctl_reset, [2] = (iw_handler) orinoco_ioctl_setport3, [3] = (iw_handler) orinoco_ioctl_getport3, [4] = (iw_handler) orinoco_ioctl_setpreamble, [5] = (iw_handler) orinoco_ioctl_getpreamble, [6] = (iw_handler) orinoco_ioctl_setibssport, [7] = (iw_handler) orinoco_ioctl_getibssport, [9] = (iw_handler) orinoco_ioctl_getrid, }; static const struct iw_handler_def orinoco_handler_def = { .num_standard = ARRAY_SIZE(orinoco_handler), .num_private = ARRAY_SIZE(orinoco_private_handler), .num_private_args = ARRAY_SIZE(orinoco_privtab), .standard = orinoco_handler, .private = orinoco_private_handler, .private_args = orinoco_privtab, .get_wireless_stats = orinoco_get_wireless_stats, }; static void orinoco_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { struct orinoco_private *priv = netdev_priv(dev); strncpy(info->driver, DRIVER_NAME, sizeof(info->driver) - 1); strncpy(info->version, DRIVER_VERSION, sizeof(info->version) - 1); strncpy(info->fw_version, priv->fw_name, sizeof(info->fw_version) - 1); if (dev->dev.parent) strncpy(info->bus_info, dev_name(dev->dev.parent), sizeof(info->bus_info) - 1); else snprintf(info->bus_info, sizeof(info->bus_info) - 1, "PCMCIA %p", priv->hw.iobase); } static const struct ethtool_ops orinoco_ethtool_ops = { .get_drvinfo = orinoco_get_drvinfo, .get_link = ethtool_op_get_link, }; /********************************************************************/ /* Module initialization */ /********************************************************************/ /* Can't be declared "const" or the whole __initdata section will * become const */ static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION " (David Gibson , " "Pavel Roskin , et al)"; static int __init init_orinoco(void) { printk(KERN_DEBUG "%s\n", version); return 0; } static void __exit exit_orinoco(void) { } module_init(init_orinoco); module_exit(exit_orinoco);