diff options
Diffstat (limited to 'package/broadcom-wl/src/wlcompat/wlcompat.c')
| -rw-r--r-- | package/broadcom-wl/src/wlcompat/wlcompat.c | 1036 |
1 files changed, 1036 insertions, 0 deletions
diff --git a/package/broadcom-wl/src/wlcompat/wlcompat.c b/package/broadcom-wl/src/wlcompat/wlcompat.c new file mode 100644 index 0000000000..3e869ea795 --- /dev/null +++ b/package/broadcom-wl/src/wlcompat/wlcompat.c @@ -0,0 +1,1036 @@ +/* + * wlcompat.c + * + * Copyright (C) 2005 Mike Baker + * Copyright (C) 2005-2007 Felix Fietkau <nbd@openwrt.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * $Id$ + */ + + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/if_arp.h> +#include <linux/wireless.h> +#include <linux/timer.h> +#include <linux/delay.h> +#include <net/iw_handler.h> +#include <asm/uaccess.h> + +#include <typedefs.h> +#include <bcmutils.h> +#include <wlioctl.h> + +static struct net_device *dev; +static struct iw_statistics wstats; +#ifndef DEBUG +static int random = 1; +#endif +static int last_mode = -1; +static int scan_cur = 0; +char buf[WLC_IOCTL_MAXLEN]; + +/* The frequency of each channel in MHz */ +const long channel_frequency[] = { + 2412, 2417, 2422, 2427, 2432, 2437, 2442, + 2447, 2452, 2457, 2462, 2467, 2472, 2484 +}; +#define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) ) + +#define SCAN_RETRY_MAX 5 +#define RNG_POLL_FREQ 1 + +typedef struct internal_wsec_key { + uint8 index; // 0x00 + uint8 unknown_1; // 0x01 + uint8 type; // 0x02 + uint8 unknown_2[7]; // 0x03 + uint8 len; // 0x0a + uint8 pad[3]; + char data[32]; // 0x0e +} wkey; + + +#ifdef DEBUG +void print_buffer(int len, unsigned char *buf); +#endif + +static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len) +{ + mm_segment_t old_fs = get_fs(); + struct ifreq ifr; + int ret; + wl_ioctl_t ioc; + ioc.cmd = cmd; + ioc.buf = buf; + ioc.len = len; + strncpy(ifr.ifr_name, dev->name, IFNAMSIZ); + ifr.ifr_data = (caddr_t) &ioc; + set_fs(KERNEL_DS); + ret = dev->do_ioctl(dev,&ifr,SIOCDEVPRIVATE); + set_fs (old_fs); + return ret; +} + +static int +wl_iovar_getbuf(struct net_device *dev, char *iovar, void *param, int paramlen, void *bufptr, int buflen) +{ + int err; + uint namelen; + uint iolen; + + namelen = strlen(iovar) + 1; /* length of iovar name plus null */ + iolen = namelen + paramlen; + + /* check for overflow */ + if (iolen > buflen) + return (BCME_BUFTOOSHORT); + + memcpy(bufptr, iovar, namelen); /* copy iovar name including null */ + memcpy((int8*)bufptr + namelen, param, paramlen); + + err = wl_ioctl(dev, WLC_GET_VAR, bufptr, buflen); + + return (err); +} + +static int +wl_iovar_setbuf(struct net_device *dev, char *iovar, void *param, int paramlen, void *bufptr, int buflen) +{ + uint namelen; + uint iolen; + + namelen = strlen(iovar) + 1; /* length of iovar name plus null */ + iolen = namelen + paramlen; + + /* check for overflow */ + if (iolen > buflen) + return (BCME_BUFTOOSHORT); + + memcpy(bufptr, iovar, namelen); /* copy iovar name including null */ + memcpy((int8*)bufptr + namelen, param, paramlen); + + return wl_ioctl(dev, WLC_SET_VAR, bufptr, iolen); +} + +static int +wl_iovar_set(struct net_device *dev, char *iovar, void *param, int paramlen) +{ + char smbuf[WLC_IOCTL_SMLEN]; + + return wl_iovar_setbuf(dev, iovar, param, paramlen, smbuf, sizeof(smbuf)); +} + +static int +wl_iovar_get(struct net_device *dev, char *iovar, void *bufptr, int buflen) +{ + char smbuf[WLC_IOCTL_SMLEN]; + int ret; + + /* use the return buffer if it is bigger than what we have on the stack */ + if (buflen > sizeof(smbuf)) { + ret = wl_iovar_getbuf(dev, iovar, NULL, 0, bufptr, buflen); + } else { + ret = wl_iovar_getbuf(dev, iovar, NULL, 0, smbuf, sizeof(smbuf)); + if (ret == 0) + memcpy(bufptr, smbuf, buflen); + } + + return ret; +} + +#ifdef notyet +/* + * format a bsscfg indexed iovar buffer + */ +static int +wl_bssiovar_mkbuf(char *iovar, int bssidx, void *param, int paramlen, void *bufptr, int buflen, + int *plen) +{ + char *prefix = "bsscfg:"; + int8* p; + uint prefixlen; + uint namelen; + uint iolen; + + prefixlen = strlen(prefix); /* length of bsscfg prefix */ + namelen = strlen(iovar) + 1; /* length of iovar name + null */ + iolen = prefixlen + namelen + sizeof(int) + paramlen; + + /* check for overflow */ + if (buflen < 0 || iolen > (uint)buflen) { + *plen = 0; + return BCME_BUFTOOSHORT; + } + + p = (int8*)bufptr; + + /* copy prefix, no null */ + memcpy(p, prefix, prefixlen); + p += prefixlen; + + /* copy iovar name including null */ + memcpy(p, iovar, namelen); + p += namelen; + + /* bss config index as first param */ + memcpy(p, &bssidx, sizeof(int32)); + p += sizeof(int32); + + /* parameter buffer follows */ + if (paramlen) + memcpy(p, param, paramlen); + + *plen = iolen; + return 0; +} + +/* + * set named & bss indexed driver variable to buffer value + */ +static int +wl_bssiovar_setbuf(struct net_device *dev, char *iovar, int bssidx, void *param, int paramlen, void *bufptr, + int buflen) +{ + int err; + int iolen; + + err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen); + if (err) + return err; + + return wl_ioctl(dev, WLC_SET_VAR, bufptr, iolen); +} + +/* + * get named & bss indexed driver variable buffer value + */ +static int +wl_bssiovar_getbuf(struct net_device *dev, char *iovar, int bssidx, void *param, int paramlen, void *bufptr, + int buflen) +{ + int err; + int iolen; + + err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen); + if (err) + return err; + + return wl_ioctl(dev, WLC_GET_VAR, bufptr, buflen); +} + +/* + * set named & bss indexed driver variable to buffer value + */ +static int +wl_bssiovar_set(struct net_device *dev, char *iovar, int bssidx, void *param, int paramlen) +{ + char smbuf[WLC_IOCTL_SMLEN]; + + return wl_bssiovar_setbuf(dev, iovar, bssidx, param, paramlen, smbuf, sizeof(smbuf)); +} + +/* + * get named & bss indexed driver variable buffer value + */ +static int +wl_bssiovar_get(struct net_device *dev, char *iovar, int bssidx, void *outbuf, int len) +{ + char smbuf[WLC_IOCTL_SMLEN]; + int err; + + /* use the return buffer if it is bigger than what we have on the stack */ + if (len > (int)sizeof(smbuf)) { + err = wl_bssiovar_getbuf(dev, iovar, bssidx, NULL, 0, outbuf, len); + } else { + memset(smbuf, 0, sizeof(smbuf)); + err = wl_bssiovar_getbuf(dev, iovar, bssidx, NULL, 0, smbuf, sizeof(smbuf)); + if (err == 0) + memcpy(outbuf, smbuf, len); + } + + return err; +} +#endif + +int get_primary_key(struct net_device *dev) +{ + int key, val; + + for (key = val = 0; (key < 4) && (val == 0); key++) { + val = key; + if (wl_ioctl(dev, WLC_GET_KEY_PRIMARY, &val, sizeof(val)) < 0) + return -EINVAL; + } + return key; +} + + +static int wlcompat_ioctl_getiwrange(struct net_device *dev, + char *extra) +{ + int i, k; + struct iw_range *range; + + range = (struct iw_range *) extra; + memset(extra, 0, sizeof(struct iw_range)); + + range->we_version_compiled = WIRELESS_EXT; + range->we_version_source = WIRELESS_EXT; + + range->min_nwid = range->max_nwid = 0; + + range->num_channels = NUM_CHANNELS; + k = 0; + for (i = 0; i < NUM_CHANNELS; i++) { + range->freq[k].i = i + 1; + range->freq[k].m = channel_frequency[i] * 100000; + range->freq[k].e = 1; + k++; + if (k >= IW_MAX_FREQUENCIES) + break; + } + range->num_frequency = k; + range->sensitivity = 3; + + /* nbd: don't know what this means, but other drivers set it this way */ + 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->min_pmp = 0; + range->max_pmp = 65535000; + range->min_pmt = 0; + range->max_pmt = 65535 * 1000; + + range->max_qual.qual = 0; + range->max_qual.level = 0; + range->max_qual.noise = 0; + + range->min_rts = 0; + if (wl_iovar_get(dev, "rtsthresh", &range->max_rts, sizeof(int)) < 0) + range->max_rts = 2347; + + range->min_frag = 256; + + if (wl_iovar_get(dev, "fragthresh", &range->max_frag, sizeof(int)) < 0) + range->max_frag = 2346; + + range->txpower_capa = IW_TXPOW_DBM; + + return 0; +} + + +static int wlcompat_set_scan(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + int ap = 0; + wl_scan_params_t params; + + memset(¶ms, 0, sizeof(params)); + + /* use defaults (same parameters as wl scan) */ + memset(¶ms.bssid, 0xff, sizeof(params.bssid)); + params.bss_type = DOT11_BSSTYPE_ANY; + params.scan_type = -1; + params.nprobes = -1; + params.active_time = -1; + params.passive_time = -1; + params.home_time = -1; + + /* can only scan in STA mode */ + wl_ioctl(dev, WLC_GET_AP, &last_mode, sizeof(last_mode)); + if (last_mode > 0) { + /* switch to ap mode, scan result query will switch back */ + wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap)); + + /* wait 250 msec after mode change */ + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(msecs_to_jiffies(250)); + } + + scan_cur = SCAN_RETRY_MAX; + while (scan_cur-- && (wl_ioctl(dev, WLC_SCAN, ¶ms, 64) < 0)) { + /* sometimes the driver takes a few tries... */ + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(msecs_to_jiffies(250)); + } + + if (!scan_cur) + return -EINVAL; + + scan_cur = 0; + + /* wait at least 2 seconds for results */ + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(msecs_to_jiffies(2000)); + + return 0; +} + + +struct iw_statistics *wlcompat_get_wireless_stats(struct net_device *dev) +{ + struct wl_bss_info *bss_info = (struct wl_bss_info *) buf; + get_pktcnt_t pkt; + unsigned int rssi, noise, ap; + + memset(&wstats, 0, sizeof(wstats)); + memset(&pkt, 0, sizeof(pkt)); + memset(buf, 0, sizeof(buf)); + bss_info->version = 0x2000; + wl_ioctl(dev, WLC_GET_BSS_INFO, bss_info, WLC_IOCTL_MAXLEN); + wl_ioctl(dev, WLC_GET_PKTCNTS, &pkt, sizeof(pkt)); + + rssi = 0; + if ((wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0) || ap) { + if (wl_ioctl(dev, WLC_GET_PHY_NOISE, &noise, sizeof(noise)) < 0) + noise = 0; + } else { + // somehow the structure doesn't fit here + rssi = buf[82]; + noise = buf[84]; + } + rssi = (rssi == 0 ? 1 : rssi); + wstats.qual.updated = 0x10; + if (rssi <= 1) + wstats.qual.updated |= 0x20; + if (noise <= 1) + wstats.qual.updated |= 0x40; + + if ((wstats.qual.updated & 0x60) == 0x60) + return NULL; + + wstats.qual.level = rssi; + wstats.qual.noise = noise; + wstats.discard.misc = pkt.rx_bad_pkt; + wstats.discard.retries = pkt.tx_bad_pkt; + + return &wstats; +} + +static int wlcompat_get_scan(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + wl_scan_results_t *results = (wl_scan_results_t *) buf; + wl_bss_info_t *bss_info; + char *info_ptr; + char *current_ev = extra; + char *current_val; + char *end_buf = extra + IW_SCAN_MAX_DATA; + struct iw_event iwe; + int i, j; + int rssi, noise; + + memset(buf, 0, WLC_IOCTL_MAXLEN); + results->buflen = WLC_IOCTL_MAXLEN - sizeof(wl_scan_results_t); + + if (wl_ioctl(dev, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) < 0) + return -EAGAIN; + + if ((results->count <= 0) && (scan_cur++ < SCAN_RETRY_MAX)) + return -EAGAIN; + + bss_info = &(results->bss_info[0]); + info_ptr = (char *) bss_info; + for (i = 0; i < results->count; i++) { + /* send the cell address (must be sent first) */ + iwe.cmd = SIOCGIWAP; + iwe.u.ap_addr.sa_family = ARPHRD_ETHER; + memcpy(&iwe.u.ap_addr.sa_data, &bss_info->BSSID, sizeof(bss_info->BSSID)); + current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN); + + /* send the ESSID */ + iwe.cmd = SIOCGIWESSID; + iwe.u.data.length = bss_info->SSID_len; + if (iwe.u.data.length > IW_ESSID_MAX_SIZE) + iwe.u.data.length = IW_ESSID_MAX_SIZE; + iwe.u.data.flags = 1; + current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, bss_info->SSID); + + /* send mode */ + if (bss_info->capability & (DOT11_CAP_ESS | DOT11_CAP_IBSS)) { + iwe.cmd = SIOCGIWMODE; + if (bss_info->capability & DOT11_CAP_ESS) + iwe.u.mode = IW_MODE_MASTER; + else if (bss_info->capability & DOT11_CAP_IBSS) + iwe.u.mode = IW_MODE_ADHOC; + current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_UINT_LEN); + } + + /* send frequency/channel info */ + iwe.cmd = SIOCGIWFREQ; + iwe.u.freq.e = 0; + iwe.u.freq.m = bss_info->chanspec & WL_CHANSPEC_CHAN_MASK; + current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_FREQ_LEN); + + /* add quality statistics */ + iwe.cmd = IWEVQUAL; + iwe.u.qual.qual = 0; + iwe.u.qual.level = bss_info->RSSI; + iwe.u.qual.noise = bss_info->phy_noise; + current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN); + + /* send encryption capability */ + iwe.cmd = SIOCGIWENCODE; + iwe.u.data.pointer = NULL; + iwe.u.data.length = 0; + if (bss_info->capability & DOT11_CAP_PRIVACY) + iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; + else + iwe.u.data.flags = IW_ENCODE_DISABLED; + current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, NULL); + + /* send rate information */ + iwe.cmd = SIOCGIWRATE; + current_val = current_ev + IW_EV_LCP_LEN; + iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; + + for(j = 0 ; j < bss_info->rateset.count ; j++) { + iwe.u.bitrate.value = ((bss_info->rateset.rates[j] & 0x7f) * 500000); + current_val = iwe_stream_add_value(current_ev, current_val, end_buf, &iwe, IW_EV_PARAM_LEN); + } + if((current_val - current_ev) > IW_EV_LCP_LEN) + current_ev = current_val; + + info_ptr += sizeof(wl_bss_info_t); + if (bss_info->ie_length % 4) + info_ptr += bss_info->ie_length + 4 - (bss_info->ie_length % 4); + else + info_ptr += bss_info->ie_length; + bss_info = (wl_bss_info_t *) info_ptr; + } + + wrqu->data.length = (current_ev - extra); + wrqu->data.flags = 0; + + if (last_mode > 0) + /* switch back to ap mode */ + wl_ioctl(dev, WLC_SET_AP, &last_mode, sizeof(last_mode)); + + return 0; +} + +static int wlcompat_ioctl(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + switch (info->cmd) { + case SIOCGIWNAME: + strcpy(wrqu->name, "IEEE 802.11-DS"); + break; + case SIOCGIWFREQ: + { + channel_info_t ci; + + if (wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci)) < 0) + return -EINVAL; + + wrqu->freq.m = ci.target_channel; + wrqu->freq.e = 0; + break; + } + case SIOCSIWFREQ: + { + if (wrqu->freq.m == -1) { + wrqu->freq.m = 0; + if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0) + return -EINVAL; + } else { + if (wrqu->freq.e == 1) { + int channel = 0; + int f = wrqu->freq.m / 100000; + while ((channel < NUM_CHANNELS + 1) && (f != channel_frequency[channel])) + channel++; + + if (channel == NUM_CHANNELS) // channel not found + return -EINVAL; + + wrqu->freq.e = 0; + wrqu->freq.m = channel + 1; + } + if ((wrqu->freq.e == 0) && (wrqu->freq.m < 1000)) { + if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0) + return -EINVAL; + } else { + return -EINVAL; + } + } + break; + } + case SIOCSIWAP: + { + int ap = 0; + int infra = 0; + rw_reg_t reg; + + memset(®, 0, sizeof(reg)); + + if (wrqu->ap_addr.sa_family != ARPHRD_ETHER) + return -EINVAL; + + if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0) + return -EINVAL; + + if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0) + return -EINVAL; + + if (!infra) + wl_ioctl(dev, WLC_SET_BSSID, wrqu->ap_addr.sa_data, 6); + + if (wl_ioctl(dev, ((ap || !infra) ? WLC_SET_BSSID : WLC_REASSOC), wrqu->ap_addr.sa_data, 6) < 0) + return -EINVAL; + + break; + } + case SIOCGIWAP: + { + wrqu->ap_addr.sa_family = ARPHRD_ETHER; + if (wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6) < 0) + return -EINVAL; + break; + } + case SIOCGIWESSID: + { + wlc_ssid_t ssid; + + if (wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t)) < 0) + return -EINVAL; + + wrqu->essid.flags = wrqu->data.flags = 1; + wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1; + memcpy(extra,ssid.SSID,ssid.SSID_len + 1); + break; + } + case SIOCSIWESSID: + { + wlc_ssid_t ssid; + memset(&ssid, 0, sizeof(ssid)); + ssid.SSID_len = strlen(extra); + if (ssid.SSID_len > 32) + ssid.SSID_len = 32; + memcpy(ssid.SSID, extra, ssid.SSID_len); + if (wl_ioctl(dev, WLC_SET_SSID, &ssid, sizeof(ssid)) < 0) + return -EINVAL; + break; + } + case SIOCGIWRTS: + { + if (wl_iovar_get(dev, "rtsthresh", &(wrqu->rts.value), sizeof(int)) < 0) + return -EINVAL; + break; + } + case SIOCSIWRTS: + { + if (wl_iovar_set(dev, "rtsthresh", &(wrqu->rts.value), sizeof(int)) < 0) + return -EINVAL; + break; + } + case SIOCGIWFRAG: + { + if (wl_iovar_get(dev, "fragthresh", &(wrqu->frag.value), sizeof(int)) < 0) + return -EINVAL; + break; + } + case SIOCSIWFRAG: + { + if (wl_iovar_set(dev, "fragthresh", &(wrqu->frag.value), sizeof(int)) < 0) + return -EINVAL; + break; + } + case SIOCGIWTXPOW: + { + int radio, override; + + wl_ioctl(dev, WLC_GET_RADIO, &radio, sizeof(int)); + + if (wl_iovar_get(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0) + return -EINVAL; + + override = (wrqu->txpower.value & WL_TXPWR_OVERRIDE) == WL_TXPWR_OVERRIDE; + wrqu->txpower.value &= ~WL_TXPWR_OVERRIDE; + if (!override && (wrqu->txpower.value > 76)) + wrqu->txpower.value = 76; + wrqu->txpower.value /= 4; + + wrqu->txpower.fixed = 0; + wrqu->txpower.disabled = radio; + wrqu->txpower.flags = IW_TXPOW_DBM; + break; + } + case SIOCSIWTXPOW: + { + /* This is weird: WLC_SET_RADIO with 1 as argument disables the radio */ + int radio = wrqu->txpower.disabled; + + wl_ioctl(dev, WLC_SET_RADIO, &radio, sizeof(int)); + + if (!wrqu->txpower.disabled && (wrqu->txpower.value > 0)) { + int value; + + if (wl_iovar_get(dev, "qtxpower", &value, sizeof(int)) < 0) + return -EINVAL; + + value &= WL_TXPWR_OVERRIDE; + wrqu->txpower.value *= 4; + wrqu->txpower.value |= value; + + if (wrqu->txpower.flags != IW_TXPOW_DBM) + return -EINVAL; + + if (wrqu->txpower.value > 0) + if (wl_iovar_set(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0) + return -EINVAL; + } + break; + } + case SIOCSIWENCODE: + { + int val = 0, wep = 1, wrestrict = 1; + int index = (wrqu->data.flags & IW_ENCODE_INDEX) - 1; + + if (index < 0) + index = get_primary_key(dev); + + if (wrqu->data.flags & IW_ENCODE_DISABLED) { + wep = 0; + if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0) + return -EINVAL; + return 0; + } + + if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0) + return -EINVAL; + + if (wrqu->data.flags & IW_ENCODE_OPEN) + wrestrict = 0; + + if (wrqu->data.pointer && (wrqu->data.length > 0) && (wrqu->data.length <= 16)) { + wl_wsec_key_t key; + memset(&key, 0, sizeof(key)); + + key.flags = WL_PRIMARY_KEY; + key.len = wrqu->data.length; + key.index = index; + memcpy(key.data, wrqu->data.pointer, wrqu->data.length); + + if (wl_ioctl(dev, WLC_SET_KEY, &key, sizeof(key)) < 0) + return -EINVAL; + } + + if (index >= 0) + wl_ioctl(dev, WLC_SET_KEY_PRIMARY, &index, sizeof(index)); + + if (wrestrict >= 0) + wl_ioctl(dev, WLC_SET_WEP_RESTRICT, &wrestrict, sizeof(wrestrict)); + + break; + } + case SIOCGIWENCODE: + { + int val; + int key = get_primary_key(dev); + int *info_addr; + wkey *wep_key; + + if (wl_ioctl(dev, WLC_GET_WSEC, &val, sizeof(val)) < 0) + return -EINVAL; + if (!(val & WEP_ENABLED)) { + wrqu->data.flags = IW_ENCODE_DISABLED; + break; + } + + key = get_primary_key(dev); + wrqu->data.flags = IW_ENCODE_ENABLED; + + /* the driver apparently doesn't allow us to read the wep key */ + wrqu->data.flags |= IW_ENCODE_NOKEY; + + break; + } + case SIOCGIWRANGE: + { + return wlcompat_ioctl_getiwrange(dev, extra); + break; + } + case SIOCSIWMODE: + { + int ap = -1, infra = -1, passive = 0, wet = 0; + + switch (wrqu->mode) { + case IW_MODE_MONITOR: + passive = 1; + break; + case IW_MODE_ADHOC: + infra = 0; + ap = 0; + break; + case IW_MODE_MASTER: + infra = 1; + ap = 1; + break; + case IW_MODE_INFRA: + infra = 1; + ap = 0; + break; + case IW_MODE_REPEAT: + infra = 1; + ap = 0; + wet = 1; + break; + + default: + return -EINVAL; + } + + wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive)); + wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive)); + wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet)); + if (ap >= 0) + wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap)); + if (infra >= 0) + wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra)); + + break; + + } + case SIOCGIWMODE: + { + int ap, infra, wet, passive; + + if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0) + return -EINVAL; + if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0) + return -EINVAL; + if (wl_ioctl(dev, WLC_GET_PASSIVE, &passive, sizeof(passive)) < 0) + return -EINVAL; + if (wl_ioctl(dev, WLC_GET_WET, &wet, sizeof(wet)) < 0) + return -EINVAL; + + if (passive) { + wrqu->mode = IW_MODE_MONITOR; + } else if (!infra) { + wrqu->mode = IW_MODE_ADHOC; + } else { + if (ap) { + wrqu->mode = IW_MODE_MASTER; + } else { + if (wet) { + wrqu->mode = IW_MODE_REPEAT; + } else { + wrqu->mode = IW_MODE_INFRA; + } + } + } + break; + } + default: + return -EINVAL; + break; + } + + return 0; +} + +static const iw_handler wlcompat_handler[] = { + NULL, /* SIOCSIWCOMMIT */ + wlcompat_ioctl, /* SIOCGIWNAME */ + NULL, /* SIOCSIWNWID */ + NULL, /* SIOCGIWNWID */ + wlcompat_ioctl, /* SIOCSIWFREQ */ + wlcompat_ioctl, /* SIOCGIWFREQ */ + wlcompat_ioctl, /* SIOCSIWMODE */ + wlcompat_ioctl, /* SIOCGIWMODE */ + NULL, /* SIOCSIWSENS */ + NULL, /* SIOCGIWSENS */ + NULL, /* SIOCSIWRANGE, unused */ + wlcompat_ioctl, /* SIOCGIWRANGE */ + NULL, /* SIOCSIWPRIV */ + NULL, /* SIOCGIWPRIV */ + NULL, /* SIOCSIWSTATS */ + NULL, /* SIOCGIWSTATS */ + iw_handler_set_spy, /* SIOCSIWSPY */ + iw_handler_get_spy, /* SIOCGIWSPY */ + iw_handler_set_thrspy, /* SIOCSIWTHRSPY */ + iw_handler_get_thrspy, /* SIOCGIWTHRSPY */ + wlcompat_ioctl, /* SIOCSIWAP */ + wlcompat_ioctl, /* SIOCGIWAP */ + NULL, /* -- hole -- */ + NULL, /* SIOCGIWAPLIST */ + wlcompat_set_scan, /* SIOCSIWSCAN */ + wlcompat_get_scan, /* SIOCGIWSCAN */ + wlcompat_ioctl, /* SIOCSIWESSID */ + wlcompat_ioctl, /* SIOCGIWESSID */ + NULL, /* SIOCSIWNICKN */ + NULL, /* SIOCGIWNICKN */ + NULL, /* -- hole -- */ + NULL, /* -- hole -- */ + NULL, /* SIOCSIWRATE */ + NULL, /* SIOCGIWRATE */ + wlcompat_ioctl, /* SIOCSIWRTS */ + wlcompat_ioctl, /* SIOCGIWRTS */ + wlcompat_ioctl, /* SIOCSIWFRAG */ + wlcompat_ioctl, /* SIOCGIWFRAG */ + wlcompat_ioctl, /* SIOCSIWTXPOW */ + wlcompat_ioctl, /* SIOCGIWTXPOW */ + NULL, /* SIOCSIWRETRY */ + NULL, /* SIOCGIWRETRY */ + wlcompat_ioctl, /* SIOCSIWENCODE */ + wlcompat_ioctl, /* SIOCGIWENCODE */ +}; + + +static const struct iw_handler_def wlcompat_handler_def = +{ + .standard = (iw_handler *) wlcompat_handler, + .num_standard = sizeof(wlcompat_handler)/sizeof(iw_handler), +}; + + +#ifdef DEBUG +void print_buffer(int len, unsigned char *buf) { + int x; + if (buf != NULL) { + for (x=0;x<len && x<180 ;x++) { + if ((x % 4) == 0) + printk(" "); + printk("%02X",buf[x]); + } + } else { + printk(" NULL"); + } + printk("\n"); + +} +#endif +static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd); +static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { + int ret = 0; + struct iwreq *iwr = (struct iwreq *) ifr; + struct iw_request_info info; + +#ifdef DEBUG + printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd); + if (cmd==SIOCDEVPRIVATE) { + wl_ioctl_t *ioc = (wl_ioctl_t *)ifr->ifr_data; + unsigned char *buf = ioc->buf; + printk(" cmd: %d buf: 0x%08x len: %d\n",ioc->cmd,&(ioc->buf),ioc->len); + printk(" send: ->"); + print_buffer(ioc->len, buf); + ret = old_ioctl(dev,ifr,cmd); + printk(" recv: ->"); + print_buffer(ioc->len, buf); + printk(" ret: %d\n", ret); + } else +#endif + { + ret = old_ioctl(dev,ifr,cmd); + } + return ret; +} + +#ifndef DEBUG +static struct timer_list rng_timer; +static spinlock_t rng_lock = SPIN_LOCK_UNLOCKED; + +static void rng_timer_tick(unsigned long n) +{ + struct net_device *dev = (struct net_device *) n; + unsigned long flags; + u16 data[4]; + int i, ret; + + ret = 0; + spin_lock_irqsave(&rng_lock, flags); + for (i = 0; i < 3; i++) { + ret |= wl_iovar_get(dev, "rand", &data[i], sizeof(u16)); + } + spin_unlock_irqrestore(&rng_lock, flags); + + if (!ret) + batch_entropy_store(*((u32 *) &data[0]), *((u32 *) &data[2]), (jiffies % 255)); + + mod_timer(&rng_timer, jiffies + (HZ/RNG_POLL_FREQ)); +} +#endif + +static int __init wlcompat_init() +{ + int found = 0, i; + char devname[4] = "wl0"; + + while (!found && (dev = dev_get_by_name(devname))) { + if ((dev->wireless_handlers == NULL) && ((wl_ioctl(dev, WLC_GET_MAGIC, &i, sizeof(i)) == 0) && i == WLC_IOCTL_MAGIC)) + found = 1; + devname[2]++; + } + + if (!found) { + printk("No Broadcom devices found.\n"); + return -ENODEV; + } + + + old_ioctl = dev->do_ioctl; + dev->do_ioctl = new_ioctl; + dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def; + dev->get_wireless_stats = wlcompat_get_wireless_stats; + +#ifndef DEBUG + if (random) { + init_timer(&rng_timer); + rng_timer.function = rng_timer_tick; + rng_timer.data = (unsigned long) dev; + rng_timer_tick((unsigned long) dev); + } +#endif + +#ifdef DEBUG + printk("broadcom driver private data: 0x%08x\n", dev->priv); +#endif + return 0; +} + +static void __exit wlcompat_exit() +{ +#ifndef DEBUG + if (random) + del_timer(&rng_timer); +#endif + dev->get_wireless_stats = NULL; + dev->wireless_handlers = NULL; + dev->do_ioctl = old_ioctl; + return; +} + +EXPORT_NO_SYMBOLS; +MODULE_AUTHOR("openwrt.org"); +MODULE_LICENSE("GPL"); + +#ifndef DEBUG +module_param(random, int, 0); +#endif +module_init(wlcompat_init); +module_exit(wlcompat_exit); |