/* * wlcompat.c * * Copyright (C) 2005 Mike Baker * Copyright (C) 2005-2007 Felix Fietkau * * 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 #include #include #include #include #include #include #include #include #include #include #include #include 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;xname,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);