| /* |
| * Implement cfg80211 ("iw") support. |
| * |
| * Copyright (C) 2009 M&N Solutions GmbH, 61191 Rosbach, Germany |
| * Holger Schurig <hs4233@mail.mn-solutions.de> |
| * |
| */ |
| |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| |
| #include <linux/hardirq.h> |
| #include <linux/sched.h> |
| #include <linux/wait.h> |
| #include <linux/slab.h> |
| #include <linux/ieee80211.h> |
| #include <net/cfg80211.h> |
| #include <asm/unaligned.h> |
| |
| #include "decl.h" |
| #include "cfg.h" |
| #include "cmd.h" |
| #include "mesh.h" |
| |
| |
| #define CHAN2G(_channel, _freq, _flags) { \ |
| .band = IEEE80211_BAND_2GHZ, \ |
| .center_freq = (_freq), \ |
| .hw_value = (_channel), \ |
| .flags = (_flags), \ |
| .max_antenna_gain = 0, \ |
| .max_power = 30, \ |
| } |
| |
| static struct ieee80211_channel lbs_2ghz_channels[] = { |
| CHAN2G(1, 2412, 0), |
| CHAN2G(2, 2417, 0), |
| CHAN2G(3, 2422, 0), |
| CHAN2G(4, 2427, 0), |
| CHAN2G(5, 2432, 0), |
| CHAN2G(6, 2437, 0), |
| CHAN2G(7, 2442, 0), |
| CHAN2G(8, 2447, 0), |
| CHAN2G(9, 2452, 0), |
| CHAN2G(10, 2457, 0), |
| CHAN2G(11, 2462, 0), |
| CHAN2G(12, 2467, 0), |
| CHAN2G(13, 2472, 0), |
| CHAN2G(14, 2484, 0), |
| }; |
| |
| #define RATETAB_ENT(_rate, _hw_value, _flags) { \ |
| .bitrate = (_rate), \ |
| .hw_value = (_hw_value), \ |
| .flags = (_flags), \ |
| } |
| |
| |
| /* Table 6 in section 3.2.1.1 */ |
| static struct ieee80211_rate lbs_rates[] = { |
| RATETAB_ENT(10, 0, 0), |
| RATETAB_ENT(20, 1, 0), |
| RATETAB_ENT(55, 2, 0), |
| RATETAB_ENT(110, 3, 0), |
| RATETAB_ENT(60, 9, 0), |
| RATETAB_ENT(90, 6, 0), |
| RATETAB_ENT(120, 7, 0), |
| RATETAB_ENT(180, 8, 0), |
| RATETAB_ENT(240, 9, 0), |
| RATETAB_ENT(360, 10, 0), |
| RATETAB_ENT(480, 11, 0), |
| RATETAB_ENT(540, 12, 0), |
| }; |
| |
| static struct ieee80211_supported_band lbs_band_2ghz = { |
| .channels = lbs_2ghz_channels, |
| .n_channels = ARRAY_SIZE(lbs_2ghz_channels), |
| .bitrates = lbs_rates, |
| .n_bitrates = ARRAY_SIZE(lbs_rates), |
| }; |
| |
| |
| static const u32 cipher_suites[] = { |
| WLAN_CIPHER_SUITE_WEP40, |
| WLAN_CIPHER_SUITE_WEP104, |
| WLAN_CIPHER_SUITE_TKIP, |
| WLAN_CIPHER_SUITE_CCMP, |
| }; |
| |
| /* Time to stay on the channel */ |
| #define LBS_DWELL_PASSIVE 100 |
| #define LBS_DWELL_ACTIVE 40 |
| |
| |
| /*************************************************************************** |
| * Misc utility functions |
| * |
| * TLVs are Marvell specific. They are very similar to IEs, they have the |
| * same structure: type, length, data*. The only difference: for IEs, the |
| * type and length are u8, but for TLVs they're __le16. |
| */ |
| |
| /* |
| * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1 |
| * in the firmware spec |
| */ |
| static u8 lbs_auth_to_authtype(enum nl80211_auth_type auth_type) |
| { |
| int ret = -ENOTSUPP; |
| |
| switch (auth_type) { |
| case NL80211_AUTHTYPE_OPEN_SYSTEM: |
| case NL80211_AUTHTYPE_SHARED_KEY: |
| ret = auth_type; |
| break; |
| case NL80211_AUTHTYPE_AUTOMATIC: |
| ret = NL80211_AUTHTYPE_OPEN_SYSTEM; |
| break; |
| case NL80211_AUTHTYPE_NETWORK_EAP: |
| ret = 0x80; |
| break; |
| default: |
| /* silence compiler */ |
| break; |
| } |
| return ret; |
| } |
| |
| |
| /* |
| * Various firmware commands need the list of supported rates, but with |
| * the hight-bit set for basic rates |
| */ |
| static int lbs_add_rates(u8 *rates) |
| { |
| size_t i; |
| |
| for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) { |
| u8 rate = lbs_rates[i].bitrate / 5; |
| if (rate == 0x02 || rate == 0x04 || |
| rate == 0x0b || rate == 0x16) |
| rate |= 0x80; |
| rates[i] = rate; |
| } |
| return ARRAY_SIZE(lbs_rates); |
| } |
| |
| |
| /*************************************************************************** |
| * TLV utility functions |
| * |
| * TLVs are Marvell specific. They are very similar to IEs, they have the |
| * same structure: type, length, data*. The only difference: for IEs, the |
| * type and length are u8, but for TLVs they're __le16. |
| */ |
| |
| |
| /* |
| * Add ssid TLV |
| */ |
| #define LBS_MAX_SSID_TLV_SIZE \ |
| (sizeof(struct mrvl_ie_header) \ |
| + IEEE80211_MAX_SSID_LEN) |
| |
| static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len) |
| { |
| struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv; |
| |
| /* |
| * TLV-ID SSID 00 00 |
| * length 06 00 |
| * ssid 4d 4e 54 45 53 54 |
| */ |
| ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID); |
| ssid_tlv->header.len = cpu_to_le16(ssid_len); |
| memcpy(ssid_tlv->ssid, ssid, ssid_len); |
| return sizeof(ssid_tlv->header) + ssid_len; |
| } |
| |
| |
| /* |
| * Add channel list TLV (section 8.4.2) |
| * |
| * Actual channel data comes from priv->wdev->wiphy->channels. |
| */ |
| #define LBS_MAX_CHANNEL_LIST_TLV_SIZE \ |
| (sizeof(struct mrvl_ie_header) \ |
| + (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset))) |
| |
| static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv, |
| int last_channel, int active_scan) |
| { |
| int chanscanparamsize = sizeof(struct chanscanparamset) * |
| (last_channel - priv->scan_channel); |
| |
| struct mrvl_ie_header *header = (void *) tlv; |
| |
| /* |
| * TLV-ID CHANLIST 01 01 |
| * length 0e 00 |
| * channel 00 01 00 00 00 64 00 |
| * radio type 00 |
| * channel 01 |
| * scan type 00 |
| * min scan time 00 00 |
| * max scan time 64 00 |
| * channel 2 00 02 00 00 00 64 00 |
| * |
| */ |
| |
| header->type = cpu_to_le16(TLV_TYPE_CHANLIST); |
| header->len = cpu_to_le16(chanscanparamsize); |
| tlv += sizeof(struct mrvl_ie_header); |
| |
| /* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel, |
| last_channel); */ |
| memset(tlv, 0, chanscanparamsize); |
| |
| while (priv->scan_channel < last_channel) { |
| struct chanscanparamset *param = (void *) tlv; |
| |
| param->radiotype = CMD_SCAN_RADIO_TYPE_BG; |
| param->channumber = |
| priv->scan_req->channels[priv->scan_channel]->hw_value; |
| if (active_scan) { |
| param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE); |
| } else { |
| param->chanscanmode.passivescan = 1; |
| param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE); |
| } |
| tlv += sizeof(struct chanscanparamset); |
| priv->scan_channel++; |
| } |
| return sizeof(struct mrvl_ie_header) + chanscanparamsize; |
| } |
| |
| |
| /* |
| * Add rates TLV |
| * |
| * The rates are in lbs_bg_rates[], but for the 802.11b |
| * rates the high bit is set. We add this TLV only because |
| * there's a firmware which otherwise doesn't report all |
| * APs in range. |
| */ |
| #define LBS_MAX_RATES_TLV_SIZE \ |
| (sizeof(struct mrvl_ie_header) \ |
| + (ARRAY_SIZE(lbs_rates))) |
| |
| /* Adds a TLV with all rates the hardware supports */ |
| static int lbs_add_supported_rates_tlv(u8 *tlv) |
| { |
| size_t i; |
| struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv; |
| |
| /* |
| * TLV-ID RATES 01 00 |
| * length 0e 00 |
| * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c |
| */ |
| rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES); |
| tlv += sizeof(rate_tlv->header); |
| i = lbs_add_rates(tlv); |
| tlv += i; |
| rate_tlv->header.len = cpu_to_le16(i); |
| return sizeof(rate_tlv->header) + i; |
| } |
| |
| /* Add common rates from a TLV and return the new end of the TLV */ |
| static u8 * |
| add_ie_rates(u8 *tlv, const u8 *ie, int *nrates) |
| { |
| int hw, ap, ap_max = ie[1]; |
| u8 hw_rate; |
| |
| /* Advance past IE header */ |
| ie += 2; |
| |
| lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max); |
| |
| for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) { |
| hw_rate = lbs_rates[hw].bitrate / 5; |
| for (ap = 0; ap < ap_max; ap++) { |
| if (hw_rate == (ie[ap] & 0x7f)) { |
| *tlv++ = ie[ap]; |
| *nrates = *nrates + 1; |
| } |
| } |
| } |
| return tlv; |
| } |
| |
| /* |
| * Adds a TLV with all rates the hardware *and* BSS supports. |
| */ |
| static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss) |
| { |
| struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv; |
| const u8 *rates_eid, *ext_rates_eid; |
| int n = 0; |
| |
| rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES); |
| ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES); |
| |
| /* |
| * 01 00 TLV_TYPE_RATES |
| * 04 00 len |
| * 82 84 8b 96 rates |
| */ |
| rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES); |
| tlv += sizeof(rate_tlv->header); |
| |
| /* Add basic rates */ |
| if (rates_eid) { |
| tlv = add_ie_rates(tlv, rates_eid, &n); |
| |
| /* Add extended rates, if any */ |
| if (ext_rates_eid) |
| tlv = add_ie_rates(tlv, ext_rates_eid, &n); |
| } else { |
| lbs_deb_assoc("assoc: bss had no basic rate IE\n"); |
| /* Fallback: add basic 802.11b rates */ |
| *tlv++ = 0x82; |
| *tlv++ = 0x84; |
| *tlv++ = 0x8b; |
| *tlv++ = 0x96; |
| n = 4; |
| } |
| |
| rate_tlv->header.len = cpu_to_le16(n); |
| return sizeof(rate_tlv->header) + n; |
| } |
| |
| |
| /* |
| * Add auth type TLV. |
| * |
| * This is only needed for newer firmware (V9 and up). |
| */ |
| #define LBS_MAX_AUTH_TYPE_TLV_SIZE \ |
| sizeof(struct mrvl_ie_auth_type) |
| |
| static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type) |
| { |
| struct mrvl_ie_auth_type *auth = (void *) tlv; |
| |
| /* |
| * 1f 01 TLV_TYPE_AUTH_TYPE |
| * 01 00 len |
| * 01 auth type |
| */ |
| auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE); |
| auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header)); |
| auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type)); |
| return sizeof(*auth); |
| } |
| |
| |
| /* |
| * Add channel (phy ds) TLV |
| */ |
| #define LBS_MAX_CHANNEL_TLV_SIZE \ |
| sizeof(struct mrvl_ie_header) |
| |
| static int lbs_add_channel_tlv(u8 *tlv, u8 channel) |
| { |
| struct mrvl_ie_ds_param_set *ds = (void *) tlv; |
| |
| /* |
| * 03 00 TLV_TYPE_PHY_DS |
| * 01 00 len |
| * 06 channel |
| */ |
| ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS); |
| ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header)); |
| ds->channel = channel; |
| return sizeof(*ds); |
| } |
| |
| |
| /* |
| * Add (empty) CF param TLV of the form: |
| */ |
| #define LBS_MAX_CF_PARAM_TLV_SIZE \ |
| sizeof(struct mrvl_ie_header) |
| |
| static int lbs_add_cf_param_tlv(u8 *tlv) |
| { |
| struct mrvl_ie_cf_param_set *cf = (void *)tlv; |
| |
| /* |
| * 04 00 TLV_TYPE_CF |
| * 06 00 len |
| * 00 cfpcnt |
| * 00 cfpperiod |
| * 00 00 cfpmaxduration |
| * 00 00 cfpdurationremaining |
| */ |
| cf->header.type = cpu_to_le16(TLV_TYPE_CF); |
| cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header)); |
| return sizeof(*cf); |
| } |
| |
| /* |
| * Add WPA TLV |
| */ |
| #define LBS_MAX_WPA_TLV_SIZE \ |
| (sizeof(struct mrvl_ie_header) \ |
| + 128 /* TODO: I guessed the size */) |
| |
| static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len) |
| { |
| size_t tlv_len; |
| |
| /* |
| * We need just convert an IE to an TLV. IEs use u8 for the header, |
| * u8 type |
| * u8 len |
| * u8[] data |
| * but TLVs use __le16 instead: |
| * __le16 type |
| * __le16 len |
| * u8[] data |
| */ |
| *tlv++ = *ie++; |
| *tlv++ = 0; |
| tlv_len = *tlv++ = *ie++; |
| *tlv++ = 0; |
| while (tlv_len--) |
| *tlv++ = *ie++; |
| /* the TLV is two bytes larger than the IE */ |
| return ie_len + 2; |
| } |
| |
| /* |
| * Set Channel |
| */ |
| |
| static int lbs_cfg_set_channel(struct wiphy *wiphy, |
| struct net_device *netdev, |
| struct ieee80211_channel *channel, |
| enum nl80211_channel_type channel_type) |
| { |
| struct lbs_private *priv = wiphy_priv(wiphy); |
| int ret = -ENOTSUPP; |
| |
| lbs_deb_enter_args(LBS_DEB_CFG80211, "iface %s freq %d, type %d", |
| netdev_name(netdev), channel->center_freq, channel_type); |
| |
| if (channel_type != NL80211_CHAN_NO_HT) |
| goto out; |
| |
| if (netdev == priv->mesh_dev) |
| ret = lbs_mesh_set_channel(priv, channel->hw_value); |
| else |
| ret = lbs_set_channel(priv, channel->hw_value); |
| |
| out: |
| lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| return ret; |
| } |
| |
| |
| |
| /* |
| * Scanning |
| */ |
| |
| /* |
| * When scanning, the firmware doesn't send a nul packet with the power-safe |
| * bit to the AP. So we cannot stay away from our current channel too long, |
| * otherwise we loose data. So take a "nap" while scanning every other |
| * while. |
| */ |
| #define LBS_SCAN_BEFORE_NAP 4 |
| |
| |
| /* |
| * When the firmware reports back a scan-result, it gives us an "u8 rssi", |
| * which isn't really an RSSI, as it becomes larger when moving away from |
| * the AP. Anyway, we need to convert that into mBm. |
| */ |
| #define LBS_SCAN_RSSI_TO_MBM(rssi) \ |
| ((-(int)rssi + 3)*100) |
| |
| static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy, |
| struct cmd_header *resp) |
| { |
| struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp; |
| int bsssize; |
| const u8 *pos; |
| const u8 *tsfdesc; |
| int tsfsize; |
| int i; |
| int ret = -EILSEQ; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| bsssize = get_unaligned_le16(&scanresp->bssdescriptsize); |
| |
| lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n", |
| scanresp->nr_sets, bsssize, le16_to_cpu(resp->size)); |
| |
| if (scanresp->nr_sets == 0) { |
| ret = 0; |
| goto done; |
| } |
| |
| /* |
| * The general layout of the scan response is described in chapter |
| * 5.7.1. Basically we have a common part, then any number of BSS |
| * descriptor sections. Finally we have section with the same number |
| * of TSFs. |
| * |
| * cmd_ds_802_11_scan_rsp |
| * cmd_header |
| * pos_size |
| * nr_sets |
| * bssdesc 1 |
| * bssid |
| * rssi |
| * timestamp |
| * intvl |
| * capa |
| * IEs |
| * bssdesc 2 |
| * bssdesc n |
| * MrvlIEtypes_TsfFimestamp_t |
| * TSF for BSS 1 |
| * TSF for BSS 2 |
| * TSF for BSS n |
| */ |
| |
| pos = scanresp->bssdesc_and_tlvbuffer; |
| |
| lbs_deb_hex(LBS_DEB_SCAN, "SCAN_RSP", scanresp->bssdesc_and_tlvbuffer, |
| scanresp->bssdescriptsize); |
| |
| tsfdesc = pos + bsssize; |
| tsfsize = 4 + 8 * scanresp->nr_sets; |
| lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TSF", (u8 *) tsfdesc, tsfsize); |
| |
| /* Validity check: we expect a Marvell-Local TLV */ |
| i = get_unaligned_le16(tsfdesc); |
| tsfdesc += 2; |
| if (i != TLV_TYPE_TSFTIMESTAMP) { |
| lbs_deb_scan("scan response: invalid TSF Timestamp %d\n", i); |
| goto done; |
| } |
| |
| /* |
| * Validity check: the TLV holds TSF values with 8 bytes each, so |
| * the size in the TLV must match the nr_sets value |
| */ |
| i = get_unaligned_le16(tsfdesc); |
| tsfdesc += 2; |
| if (i / 8 != scanresp->nr_sets) { |
| lbs_deb_scan("scan response: invalid number of TSF timestamp " |
| "sets (expected %d got %d)\n", scanresp->nr_sets, |
| i / 8); |
| goto done; |
| } |
| |
| for (i = 0; i < scanresp->nr_sets; i++) { |
| const u8 *bssid; |
| const u8 *ie; |
| int left; |
| int ielen; |
| int rssi; |
| u16 intvl; |
| u16 capa; |
| int chan_no = -1; |
| const u8 *ssid = NULL; |
| u8 ssid_len = 0; |
| DECLARE_SSID_BUF(ssid_buf); |
| |
| int len = get_unaligned_le16(pos); |
| pos += 2; |
| |
| /* BSSID */ |
| bssid = pos; |
| pos += ETH_ALEN; |
| /* RSSI */ |
| rssi = *pos++; |
| /* Packet time stamp */ |
| pos += 8; |
| /* Beacon interval */ |
| intvl = get_unaligned_le16(pos); |
| pos += 2; |
| /* Capabilities */ |
| capa = get_unaligned_le16(pos); |
| pos += 2; |
| |
| /* To find out the channel, we must parse the IEs */ |
| ie = pos; |
| /* |
| * 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon |
| * interval, capabilities |
| */ |
| ielen = left = len - (6 + 1 + 8 + 2 + 2); |
| while (left >= 2) { |
| u8 id, elen; |
| id = *pos++; |
| elen = *pos++; |
| left -= 2; |
| if (elen > left || elen == 0) { |
| lbs_deb_scan("scan response: invalid IE fmt\n"); |
| goto done; |
| } |
| |
| if (id == WLAN_EID_DS_PARAMS) |
| chan_no = *pos; |
| if (id == WLAN_EID_SSID) { |
| ssid = pos; |
| ssid_len = elen; |
| } |
| left -= elen; |
| pos += elen; |
| } |
| |
| /* No channel, no luck */ |
| if (chan_no != -1) { |
| struct wiphy *wiphy = priv->wdev->wiphy; |
| int freq = ieee80211_channel_to_frequency(chan_no, |
| IEEE80211_BAND_2GHZ); |
| struct ieee80211_channel *channel = |
| ieee80211_get_channel(wiphy, freq); |
| |
| lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %s, " |
| "%d dBm\n", |
| bssid, capa, chan_no, |
| print_ssid(ssid_buf, ssid, ssid_len), |
| LBS_SCAN_RSSI_TO_MBM(rssi)/100); |
| |
| if (channel && |
| !(channel->flags & IEEE80211_CHAN_DISABLED)) |
| cfg80211_inform_bss(wiphy, channel, |
| bssid, get_unaligned_le64(tsfdesc), |
| capa, intvl, ie, ielen, |
| LBS_SCAN_RSSI_TO_MBM(rssi), |
| GFP_KERNEL); |
| } else |
| lbs_deb_scan("scan response: missing BSS channel IE\n"); |
| |
| tsfdesc += 8; |
| } |
| ret = 0; |
| |
| done: |
| lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret); |
| return ret; |
| } |
| |
| |
| /* |
| * Our scan command contains a TLV, consting of a SSID TLV, a channel list |
| * TLV and a rates TLV. Determine the maximum size of them: |
| */ |
| #define LBS_SCAN_MAX_CMD_SIZE \ |
| (sizeof(struct cmd_ds_802_11_scan) \ |
| + LBS_MAX_SSID_TLV_SIZE \ |
| + LBS_MAX_CHANNEL_LIST_TLV_SIZE \ |
| + LBS_MAX_RATES_TLV_SIZE) |
| |
| /* |
| * Assumes priv->scan_req is initialized and valid |
| * Assumes priv->scan_channel is initialized |
| */ |
| static void lbs_scan_worker(struct work_struct *work) |
| { |
| struct lbs_private *priv = |
| container_of(work, struct lbs_private, scan_work.work); |
| struct cmd_ds_802_11_scan *scan_cmd; |
| u8 *tlv; /* pointer into our current, growing TLV storage area */ |
| int last_channel; |
| int running, carrier; |
| |
| lbs_deb_enter(LBS_DEB_SCAN); |
| |
| scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL); |
| if (scan_cmd == NULL) |
| goto out_no_scan_cmd; |
| |
| /* prepare fixed part of scan command */ |
| scan_cmd->bsstype = CMD_BSS_TYPE_ANY; |
| |
| /* stop network while we're away from our main channel */ |
| running = !netif_queue_stopped(priv->dev); |
| carrier = netif_carrier_ok(priv->dev); |
| if (running) |
| netif_stop_queue(priv->dev); |
| if (carrier) |
| netif_carrier_off(priv->dev); |
| |
| /* prepare fixed part of scan command */ |
| tlv = scan_cmd->tlvbuffer; |
| |
| /* add SSID TLV */ |
| if (priv->scan_req->n_ssids && priv->scan_req->ssids[0].ssid_len > 0) |
| tlv += lbs_add_ssid_tlv(tlv, |
| priv->scan_req->ssids[0].ssid, |
| priv->scan_req->ssids[0].ssid_len); |
| |
| /* add channel TLVs */ |
| last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP; |
| if (last_channel > priv->scan_req->n_channels) |
| last_channel = priv->scan_req->n_channels; |
| tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel, |
| priv->scan_req->n_ssids); |
| |
| /* add rates TLV */ |
| tlv += lbs_add_supported_rates_tlv(tlv); |
| |
| if (priv->scan_channel < priv->scan_req->n_channels) { |
| cancel_delayed_work(&priv->scan_work); |
| if (netif_running(priv->dev)) |
| queue_delayed_work(priv->work_thread, &priv->scan_work, |
| msecs_to_jiffies(300)); |
| } |
| |
| /* This is the final data we are about to send */ |
| scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd); |
| lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd, |
| sizeof(*scan_cmd)); |
| lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer, |
| tlv - scan_cmd->tlvbuffer); |
| |
| __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr, |
| le16_to_cpu(scan_cmd->hdr.size), |
| lbs_ret_scan, 0); |
| |
| if (priv->scan_channel >= priv->scan_req->n_channels) |
| /* Mark scan done */ |
| lbs_scan_done(priv); |
| |
| /* Restart network */ |
| if (carrier) |
| netif_carrier_on(priv->dev); |
| if (running && !priv->tx_pending_len) |
| netif_wake_queue(priv->dev); |
| |
| kfree(scan_cmd); |
| |
| /* Wake up anything waiting on scan completion */ |
| if (priv->scan_req == NULL) { |
| lbs_deb_scan("scan: waking up waiters\n"); |
| wake_up_all(&priv->scan_q); |
| } |
| |
| out_no_scan_cmd: |
| lbs_deb_leave(LBS_DEB_SCAN); |
| } |
| |
| static void _internal_start_scan(struct lbs_private *priv, bool internal, |
| struct cfg80211_scan_request *request) |
| { |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n", |
| request->n_ssids, request->n_channels, request->ie_len); |
| |
| priv->scan_channel = 0; |
| queue_delayed_work(priv->work_thread, &priv->scan_work, |
| msecs_to_jiffies(50)); |
| |
| priv->scan_req = request; |
| priv->internal_scan = internal; |
| |
| lbs_deb_leave(LBS_DEB_CFG80211); |
| } |
| |
| /* |
| * Clean up priv->scan_req. Should be used to handle the allocation details. |
| */ |
| void lbs_scan_done(struct lbs_private *priv) |
| { |
| WARN_ON(!priv->scan_req); |
| |
| if (priv->internal_scan) |
| kfree(priv->scan_req); |
| else |
| cfg80211_scan_done(priv->scan_req, false); |
| |
| priv->scan_req = NULL; |
| } |
| |
| static int lbs_cfg_scan(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct cfg80211_scan_request *request) |
| { |
| struct lbs_private *priv = wiphy_priv(wiphy); |
| int ret = 0; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| if (priv->scan_req || delayed_work_pending(&priv->scan_work)) { |
| /* old scan request not yet processed */ |
| ret = -EAGAIN; |
| goto out; |
| } |
| |
| _internal_start_scan(priv, false, request); |
| |
| if (priv->surpriseremoved) |
| ret = -EIO; |
| |
| out: |
| lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| return ret; |
| } |
| |
| |
| |
| |
| /* |
| * Events |
| */ |
| |
| void lbs_send_disconnect_notification(struct lbs_private *priv) |
| { |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| cfg80211_disconnected(priv->dev, |
| 0, |
| NULL, 0, |
| GFP_KERNEL); |
| |
| lbs_deb_leave(LBS_DEB_CFG80211); |
| } |
| |
| void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event) |
| { |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| cfg80211_michael_mic_failure(priv->dev, |
| priv->assoc_bss, |
| event == MACREG_INT_CODE_MIC_ERR_MULTICAST ? |
| NL80211_KEYTYPE_GROUP : |
| NL80211_KEYTYPE_PAIRWISE, |
| -1, |
| NULL, |
| GFP_KERNEL); |
| |
| lbs_deb_leave(LBS_DEB_CFG80211); |
| } |
| |
| |
| |
| |
| /* |
| * Connect/disconnect |
| */ |
| |
| |
| /* |
| * This removes all WEP keys |
| */ |
| static int lbs_remove_wep_keys(struct lbs_private *priv) |
| { |
| struct cmd_ds_802_11_set_wep cmd; |
| int ret; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| memset(&cmd, 0, sizeof(cmd)); |
| cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| cmd.keyindex = cpu_to_le16(priv->wep_tx_key); |
| cmd.action = cpu_to_le16(CMD_ACT_REMOVE); |
| |
| ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd); |
| |
| lbs_deb_leave(LBS_DEB_CFG80211); |
| return ret; |
| } |
| |
| /* |
| * Set WEP keys |
| */ |
| static int lbs_set_wep_keys(struct lbs_private *priv) |
| { |
| struct cmd_ds_802_11_set_wep cmd; |
| int i; |
| int ret; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| /* |
| * command 13 00 |
| * size 50 00 |
| * sequence xx xx |
| * result 00 00 |
| * action 02 00 ACT_ADD |
| * transmit key 00 00 |
| * type for key 1 01 WEP40 |
| * type for key 2 00 |
| * type for key 3 00 |
| * type for key 4 00 |
| * key 1 39 39 39 39 39 00 00 00 |
| * 00 00 00 00 00 00 00 00 |
| * key 2 00 00 00 00 00 00 00 00 |
| * 00 00 00 00 00 00 00 00 |
| * key 3 00 00 00 00 00 00 00 00 |
| * 00 00 00 00 00 00 00 00 |
| * key 4 00 00 00 00 00 00 00 00 |
| */ |
| if (priv->wep_key_len[0] || priv->wep_key_len[1] || |
| priv->wep_key_len[2] || priv->wep_key_len[3]) { |
| /* Only set wep keys if we have at least one of them */ |
| memset(&cmd, 0, sizeof(cmd)); |
| cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| cmd.keyindex = cpu_to_le16(priv->wep_tx_key); |
| cmd.action = cpu_to_le16(CMD_ACT_ADD); |
| |
| for (i = 0; i < 4; i++) { |
| switch (priv->wep_key_len[i]) { |
| case WLAN_KEY_LEN_WEP40: |
| cmd.keytype[i] = CMD_TYPE_WEP_40_BIT; |
| break; |
| case WLAN_KEY_LEN_WEP104: |
| cmd.keytype[i] = CMD_TYPE_WEP_104_BIT; |
| break; |
| default: |
| cmd.keytype[i] = 0; |
| break; |
| } |
| memcpy(cmd.keymaterial[i], priv->wep_key[i], |
| priv->wep_key_len[i]); |
| } |
| |
| ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd); |
| } else { |
| /* Otherwise remove all wep keys */ |
| ret = lbs_remove_wep_keys(priv); |
| } |
| |
| lbs_deb_leave(LBS_DEB_CFG80211); |
| return ret; |
| } |
| |
| |
| /* |
| * Enable/Disable RSN status |
| */ |
| static int lbs_enable_rsn(struct lbs_private *priv, int enable) |
| { |
| struct cmd_ds_802_11_enable_rsn cmd; |
| int ret; |
| |
| lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", enable); |
| |
| /* |
| * cmd 2f 00 |
| * size 0c 00 |
| * sequence xx xx |
| * result 00 00 |
| * action 01 00 ACT_SET |
| * enable 01 00 |
| */ |
| memset(&cmd, 0, sizeof(cmd)); |
| cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| cmd.action = cpu_to_le16(CMD_ACT_SET); |
| cmd.enable = cpu_to_le16(enable); |
| |
| ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd); |
| |
| lbs_deb_leave(LBS_DEB_CFG80211); |
| return ret; |
| } |
| |
| |
| /* |
| * Set WPA/WPA key material |
| */ |
| |
| /* |
| * like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we |
| * get rid of WEXT, this should go into host.h |
| */ |
| |
| struct cmd_key_material { |
| struct cmd_header hdr; |
| |
| __le16 action; |
| struct MrvlIEtype_keyParamSet param; |
| } __packed; |
| |
| static int lbs_set_key_material(struct lbs_private *priv, |
| int key_type, |
| int key_info, |
| u8 *key, u16 key_len) |
| { |
| struct cmd_key_material cmd; |
| int ret; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| /* |
| * Example for WPA (TKIP): |
| * |
| * cmd 5e 00 |
| * size 34 00 |
| * sequence xx xx |
| * result 00 00 |
| * action 01 00 |
| * TLV type 00 01 key param |
| * length 00 26 |
| * key type 01 00 TKIP |
| * key info 06 00 UNICAST | ENABLED |
| * key len 20 00 |
| * key 32 bytes |
| */ |
| memset(&cmd, 0, sizeof(cmd)); |
| cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| cmd.action = cpu_to_le16(CMD_ACT_SET); |
| cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL); |
| cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4); |
| cmd.param.keytypeid = cpu_to_le16(key_type); |
| cmd.param.keyinfo = cpu_to_le16(key_info); |
| cmd.param.keylen = cpu_to_le16(key_len); |
| if (key && key_len) |
| memcpy(cmd.param.key, key, key_len); |
| |
| ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd); |
| |
| lbs_deb_leave(LBS_DEB_CFG80211); |
| return ret; |
| } |
| |
| |
| /* |
| * Sets the auth type (open, shared, etc) in the firmware. That |
| * we use CMD_802_11_AUTHENTICATE is misleading, this firmware |
| * command doesn't send an authentication frame at all, it just |
| * stores the auth_type. |
| */ |
| static int lbs_set_authtype(struct lbs_private *priv, |
| struct cfg80211_connect_params *sme) |
| { |
| struct cmd_ds_802_11_authenticate cmd; |
| int ret; |
| |
| lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", sme->auth_type); |
| |
| /* |
| * cmd 11 00 |
| * size 19 00 |
| * sequence xx xx |
| * result 00 00 |
| * BSS id 00 13 19 80 da 30 |
| * auth type 00 |
| * reserved 00 00 00 00 00 00 00 00 00 00 |
| */ |
| memset(&cmd, 0, sizeof(cmd)); |
| cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| if (sme->bssid) |
| memcpy(cmd.bssid, sme->bssid, ETH_ALEN); |
| /* convert auth_type */ |
| ret = lbs_auth_to_authtype(sme->auth_type); |
| if (ret < 0) |
| goto done; |
| |
| cmd.authtype = ret; |
| ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd); |
| |
| done: |
| lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| return ret; |
| } |
| |
| |
| /* |
| * Create association request |
| */ |
| #define LBS_ASSOC_MAX_CMD_SIZE \ |
| (sizeof(struct cmd_ds_802_11_associate) \ |
| - 512 /* cmd_ds_802_11_associate.iebuf */ \ |
| + LBS_MAX_SSID_TLV_SIZE \ |
| + LBS_MAX_CHANNEL_TLV_SIZE \ |
| + LBS_MAX_CF_PARAM_TLV_SIZE \ |
| + LBS_MAX_AUTH_TYPE_TLV_SIZE \ |
| + LBS_MAX_WPA_TLV_SIZE) |
| |
| static int lbs_associate(struct lbs_private *priv, |
| struct cfg80211_bss *bss, |
| struct cfg80211_connect_params *sme) |
| { |
| struct cmd_ds_802_11_associate_response *resp; |
| struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE, |
| GFP_KERNEL); |
| const u8 *ssid_eid; |
| size_t len, resp_ie_len; |
| int status; |
| int ret; |
| u8 *pos = &(cmd->iebuf[0]); |
| u8 *tmp; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| if (!cmd) { |
| ret = -ENOMEM; |
| goto done; |
| } |
| |
| /* |
| * cmd 50 00 |
| * length 34 00 |
| * sequence xx xx |
| * result 00 00 |
| * BSS id 00 13 19 80 da 30 |
| * capabilities 11 00 |
| * listen interval 0a 00 |
| * beacon interval 00 00 |
| * DTIM period 00 |
| * TLVs xx (up to 512 bytes) |
| */ |
| cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE); |
| |
| /* Fill in static fields */ |
| memcpy(cmd->bssid, bss->bssid, ETH_ALEN); |
| cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL); |
| cmd->capability = cpu_to_le16(bss->capability); |
| |
| /* add SSID TLV */ |
| ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID); |
| if (ssid_eid) |
| pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]); |
| else |
| lbs_deb_assoc("no SSID\n"); |
| |
| /* add DS param TLV */ |
| if (bss->channel) |
| pos += lbs_add_channel_tlv(pos, bss->channel->hw_value); |
| else |
| lbs_deb_assoc("no channel\n"); |
| |
| /* add (empty) CF param TLV */ |
| pos += lbs_add_cf_param_tlv(pos); |
| |
| /* add rates TLV */ |
| tmp = pos + 4; /* skip Marvell IE header */ |
| pos += lbs_add_common_rates_tlv(pos, bss); |
| lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp); |
| |
| /* add auth type TLV */ |
| if (MRVL_FW_MAJOR_REV(priv->fwrelease) >= 9) |
| pos += lbs_add_auth_type_tlv(pos, sme->auth_type); |
| |
| /* add WPA/WPA2 TLV */ |
| if (sme->ie && sme->ie_len) |
| pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len); |
| |
| len = (sizeof(*cmd) - sizeof(cmd->iebuf)) + |
| (u16)(pos - (u8 *) &cmd->iebuf); |
| cmd->hdr.size = cpu_to_le16(len); |
| |
| lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_CMD", (u8 *) cmd, |
| le16_to_cpu(cmd->hdr.size)); |
| |
| /* store for later use */ |
| memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN); |
| |
| ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd); |
| if (ret) |
| goto done; |
| |
| /* generate connect message to cfg80211 */ |
| |
| resp = (void *) cmd; /* recast for easier field access */ |
| status = le16_to_cpu(resp->statuscode); |
| |
| /* Older FW versions map the IEEE 802.11 Status Code in the association |
| * response to the following values returned in resp->statuscode: |
| * |
| * IEEE Status Code Marvell Status Code |
| * 0 -> 0x0000 ASSOC_RESULT_SUCCESS |
| * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED |
| * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED |
| * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED |
| * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED |
| * others -> 0x0003 ASSOC_RESULT_REFUSED |
| * |
| * Other response codes: |
| * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused) |
| * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for |
| * association response from the AP) |
| */ |
| if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) { |
| switch (status) { |
| case 0: |
| break; |
| case 1: |
| lbs_deb_assoc("invalid association parameters\n"); |
| status = WLAN_STATUS_CAPS_UNSUPPORTED; |
| break; |
| case 2: |
| lbs_deb_assoc("timer expired while waiting for AP\n"); |
| status = WLAN_STATUS_AUTH_TIMEOUT; |
| break; |
| case 3: |
| lbs_deb_assoc("association refused by AP\n"); |
| status = WLAN_STATUS_ASSOC_DENIED_UNSPEC; |
| break; |
| case 4: |
| lbs_deb_assoc("authentication refused by AP\n"); |
| status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; |
| break; |
| default: |
| lbs_deb_assoc("association failure %d\n", status); |
| /* v5 OLPC firmware does return the AP status code if |
| * it's not one of the values above. Let that through. |
| */ |
| break; |
| } |
| } |
| |
| lbs_deb_assoc("status %d, statuscode 0x%04x, capability 0x%04x, " |
| "aid 0x%04x\n", status, le16_to_cpu(resp->statuscode), |
| le16_to_cpu(resp->capability), le16_to_cpu(resp->aid)); |
| |
| resp_ie_len = le16_to_cpu(resp->hdr.size) |
| - sizeof(resp->hdr) |
| - 6; |
| cfg80211_connect_result(priv->dev, |
| priv->assoc_bss, |
| sme->ie, sme->ie_len, |
| resp->iebuf, resp_ie_len, |
| status, |
| GFP_KERNEL); |
| |
| if (status == 0) { |
| /* TODO: get rid of priv->connect_status */ |
| priv->connect_status = LBS_CONNECTED; |
| netif_carrier_on(priv->dev); |
| if (!priv->tx_pending_len) |
| netif_tx_wake_all_queues(priv->dev); |
| } |
| |
| done: |
| lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| return ret; |
| } |
| |
| static struct cfg80211_scan_request * |
| _new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme) |
| { |
| struct cfg80211_scan_request *creq = NULL; |
| int i, n_channels = 0; |
| enum ieee80211_band band; |
| |
| for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| if (wiphy->bands[band]) |
| n_channels += wiphy->bands[band]->n_channels; |
| } |
| |
| creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) + |
| n_channels * sizeof(void *), |
| GFP_ATOMIC); |
| if (!creq) |
| return NULL; |
| |
| /* SSIDs come after channels */ |
| creq->ssids = (void *)&creq->channels[n_channels]; |
| creq->n_channels = n_channels; |
| creq->n_ssids = 1; |
| |
| /* Scan all available channels */ |
| i = 0; |
| for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| int j; |
| |
| if (!wiphy->bands[band]) |
| continue; |
| |
| for (j = 0; j < wiphy->bands[band]->n_channels; j++) { |
| /* ignore disabled channels */ |
| if (wiphy->bands[band]->channels[j].flags & |
| IEEE80211_CHAN_DISABLED) |
| continue; |
| |
| creq->channels[i] = &wiphy->bands[band]->channels[j]; |
| i++; |
| } |
| } |
| if (i) { |
| /* Set real number of channels specified in creq->channels[] */ |
| creq->n_channels = i; |
| |
| /* Scan for the SSID we're going to connect to */ |
| memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len); |
| creq->ssids[0].ssid_len = sme->ssid_len; |
| } else { |
| /* No channels found... */ |
| kfree(creq); |
| creq = NULL; |
| } |
| |
| return creq; |
| } |
| |
| static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_connect_params *sme) |
| { |
| struct lbs_private *priv = wiphy_priv(wiphy); |
| struct cfg80211_bss *bss = NULL; |
| int ret = 0; |
| u8 preamble = RADIO_PREAMBLE_SHORT; |
| |
| if (dev == priv->mesh_dev) |
| return -EOPNOTSUPP; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| if (!sme->bssid) { |
| struct cfg80211_scan_request *creq; |
| |
| /* |
| * Scan for the requested network after waiting for existing |
| * scans to finish. |
| */ |
| lbs_deb_assoc("assoc: waiting for existing scans\n"); |
| wait_event_interruptible_timeout(priv->scan_q, |
| (priv->scan_req == NULL), |
| (15 * HZ)); |
| |
| creq = _new_connect_scan_req(wiphy, sme); |
| if (!creq) { |
| ret = -EINVAL; |
| goto done; |
| } |
| |
| lbs_deb_assoc("assoc: scanning for compatible AP\n"); |
| _internal_start_scan(priv, true, creq); |
| |
| lbs_deb_assoc("assoc: waiting for scan to complete\n"); |
| wait_event_interruptible_timeout(priv->scan_q, |
| (priv->scan_req == NULL), |
| (15 * HZ)); |
| lbs_deb_assoc("assoc: scanning competed\n"); |
| } |
| |
| /* Find the BSS we want using available scan results */ |
| bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid, |
| sme->ssid, sme->ssid_len, |
| WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); |
| if (!bss) { |
| wiphy_err(wiphy, "assoc: bss %pM not in scan results\n", |
| sme->bssid); |
| ret = -ENOENT; |
| goto done; |
| } |
| lbs_deb_assoc("trying %pM\n", bss->bssid); |
| lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n", |
| sme->crypto.cipher_group, |
| sme->key_idx, sme->key_len); |
| |
| /* As this is a new connection, clear locally stored WEP keys */ |
| priv->wep_tx_key = 0; |
| memset(priv->wep_key, 0, sizeof(priv->wep_key)); |
| memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len)); |
| |
| /* set/remove WEP keys */ |
| switch (sme->crypto.cipher_group) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| /* Store provided WEP keys in priv-> */ |
| priv->wep_tx_key = sme->key_idx; |
| priv->wep_key_len[sme->key_idx] = sme->key_len; |
| memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len); |
| /* Set WEP keys and WEP mode */ |
| lbs_set_wep_keys(priv); |
| priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE; |
| lbs_set_mac_control(priv); |
| /* No RSN mode for WEP */ |
| lbs_enable_rsn(priv, 0); |
| break; |
| case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */ |
| /* |
| * If we don't have no WEP, no WPA and no WPA2, |
| * we remove all keys like in the WPA/WPA2 setup, |
| * we just don't set RSN. |
| * |
| * Therefore: fall-through |
| */ |
| case WLAN_CIPHER_SUITE_TKIP: |
| case WLAN_CIPHER_SUITE_CCMP: |
| /* Remove WEP keys and WEP mode */ |
| lbs_remove_wep_keys(priv); |
| priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE; |
| lbs_set_mac_control(priv); |
| |
| /* clear the WPA/WPA2 keys */ |
| lbs_set_key_material(priv, |
| KEY_TYPE_ID_WEP, /* doesn't matter */ |
| KEY_INFO_WPA_UNICAST, |
| NULL, 0); |
| lbs_set_key_material(priv, |
| KEY_TYPE_ID_WEP, /* doesn't matter */ |
| KEY_INFO_WPA_MCAST, |
| NULL, 0); |
| /* RSN mode for WPA/WPA2 */ |
| lbs_enable_rsn(priv, sme->crypto.cipher_group != 0); |
| break; |
| default: |
| wiphy_err(wiphy, "unsupported cipher group 0x%x\n", |
| sme->crypto.cipher_group); |
| ret = -ENOTSUPP; |
| goto done; |
| } |
| |
| lbs_set_authtype(priv, sme); |
| lbs_set_radio(priv, preamble, 1); |
| |
| /* Do the actual association */ |
| ret = lbs_associate(priv, bss, sme); |
| |
| done: |
| if (bss) |
| cfg80211_put_bss(bss); |
| lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| return ret; |
| } |
| |
| int lbs_disconnect(struct lbs_private *priv, u16 reason) |
| { |
| struct cmd_ds_802_11_deauthenticate cmd; |
| int ret; |
| |
| memset(&cmd, 0, sizeof(cmd)); |
| cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| /* Mildly ugly to use a locally store my own BSSID ... */ |
| memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN); |
| cmd.reasoncode = cpu_to_le16(reason); |
| |
| ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd); |
| if (ret) |
| return ret; |
| |
| cfg80211_disconnected(priv->dev, |
| reason, |
| NULL, 0, |
| GFP_KERNEL); |
| priv->connect_status = LBS_DISCONNECTED; |
| |
| return 0; |
| } |
| |
| static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev, |
| u16 reason_code) |
| { |
| struct lbs_private *priv = wiphy_priv(wiphy); |
| |
| if (dev == priv->mesh_dev) |
| return -EOPNOTSUPP; |
| |
| lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code); |
| |
| /* store for lbs_cfg_ret_disconnect() */ |
| priv->disassoc_reason = reason_code; |
| |
| return lbs_disconnect(priv, reason_code); |
| } |
| |
| static int lbs_cfg_set_default_key(struct wiphy *wiphy, |
| struct net_device *netdev, |
| u8 key_index, bool unicast, |
| bool multicast) |
| { |
| struct lbs_private *priv = wiphy_priv(wiphy); |
| |
| if (netdev == priv->mesh_dev) |
| return -EOPNOTSUPP; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| if (key_index != priv->wep_tx_key) { |
| lbs_deb_assoc("set_default_key: to %d\n", key_index); |
| priv->wep_tx_key = key_index; |
| lbs_set_wep_keys(priv); |
| } |
| |
| return 0; |
| } |
| |
| |
| static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev, |
| u8 idx, bool pairwise, const u8 *mac_addr, |
| struct key_params *params) |
| { |
| struct lbs_private *priv = wiphy_priv(wiphy); |
| u16 key_info; |
| u16 key_type; |
| int ret = 0; |
| |
| if (netdev == priv->mesh_dev) |
| return -EOPNOTSUPP; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n", |
| params->cipher, mac_addr); |
| lbs_deb_assoc("add_key: key index %d, key len %d\n", |
| idx, params->key_len); |
| if (params->key_len) |
| lbs_deb_hex(LBS_DEB_CFG80211, "KEY", |
| params->key, params->key_len); |
| |
| lbs_deb_assoc("add_key: seq len %d\n", params->seq_len); |
| if (params->seq_len) |
| lbs_deb_hex(LBS_DEB_CFG80211, "SEQ", |
| params->seq, params->seq_len); |
| |
| switch (params->cipher) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| /* actually compare if something has changed ... */ |
| if ((priv->wep_key_len[idx] != params->key_len) || |
| memcmp(priv->wep_key[idx], |
| params->key, params->key_len) != 0) { |
| priv->wep_key_len[idx] = params->key_len; |
| memcpy(priv->wep_key[idx], |
| params->key, params->key_len); |
| lbs_set_wep_keys(priv); |
| } |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| case WLAN_CIPHER_SUITE_CCMP: |
| key_info = KEY_INFO_WPA_ENABLED | ((idx == 0) |
| ? KEY_INFO_WPA_UNICAST |
| : KEY_INFO_WPA_MCAST); |
| key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP) |
| ? KEY_TYPE_ID_TKIP |
| : KEY_TYPE_ID_AES; |
| lbs_set_key_material(priv, |
| key_type, |
| key_info, |
| params->key, params->key_len); |
| break; |
| default: |
| wiphy_err(wiphy, "unhandled cipher 0x%x\n", params->cipher); |
| ret = -ENOTSUPP; |
| break; |
| } |
| |
| return ret; |
| } |
| |
| |
| static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev, |
| u8 key_index, bool pairwise, const u8 *mac_addr) |
| { |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n", |
| key_index, mac_addr); |
| |
| #ifdef TODO |
| struct lbs_private *priv = wiphy_priv(wiphy); |
| /* |
| * I think can keep this a NO-OP, because: |
| |
| * - we clear all keys whenever we do lbs_cfg_connect() anyway |
| * - neither "iw" nor "wpa_supplicant" won't call this during |
| * an ongoing connection |
| * - TODO: but I have to check if this is still true when |
| * I set the AP to periodic re-keying |
| * - we've not kzallec() something when we've added a key at |
| * lbs_cfg_connect() or lbs_cfg_add_key(). |
| * |
| * This causes lbs_cfg_del_key() only called at disconnect time, |
| * where we'd just waste time deleting a key that is not going |
| * to be used anyway. |
| */ |
| if (key_index < 3 && priv->wep_key_len[key_index]) { |
| priv->wep_key_len[key_index] = 0; |
| lbs_set_wep_keys(priv); |
| } |
| #endif |
| |
| return 0; |
| } |
| |
| |
| /* |
| * Get station |
| */ |
| |
| static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev, |
| u8 *mac, struct station_info *sinfo) |
| { |
| struct lbs_private *priv = wiphy_priv(wiphy); |
| s8 signal, noise; |
| int ret; |
| size_t i; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| sinfo->filled |= STATION_INFO_TX_BYTES | |
| STATION_INFO_TX_PACKETS | |
| STATION_INFO_RX_BYTES | |
| STATION_INFO_RX_PACKETS; |
| sinfo->tx_bytes = priv->dev->stats.tx_bytes; |
| sinfo->tx_packets = priv->dev->stats.tx_packets; |
| sinfo->rx_bytes = priv->dev->stats.rx_bytes; |
| sinfo->rx_packets = priv->dev->stats.rx_packets; |
| |
| /* Get current RSSI */ |
| ret = lbs_get_rssi(priv, &signal, &noise); |
| if (ret == 0) { |
| sinfo->signal = signal; |
| sinfo->filled |= STATION_INFO_SIGNAL; |
| } |
| |
| /* Convert priv->cur_rate from hw_value to NL80211 value */ |
| for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) { |
| if (priv->cur_rate == lbs_rates[i].hw_value) { |
| sinfo->txrate.legacy = lbs_rates[i].bitrate; |
| sinfo->filled |= STATION_INFO_TX_BITRATE; |
| break; |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| |
| |
| /* |
| * "Site survey", here just current channel and noise level |
| */ |
| |
| static int lbs_get_survey(struct wiphy *wiphy, struct net_device *dev, |
| int idx, struct survey_info *survey) |
| { |
| struct lbs_private *priv = wiphy_priv(wiphy); |
| s8 signal, noise; |
| int ret; |
| |
| if (dev == priv->mesh_dev) |
| return -EOPNOTSUPP; |
| |
| if (idx != 0) |
| ret = -ENOENT; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| survey->channel = ieee80211_get_channel(wiphy, |
| ieee80211_channel_to_frequency(priv->channel, |
| IEEE80211_BAND_2GHZ)); |
| |
| ret = lbs_get_rssi(priv, &signal, &noise); |
| if (ret == 0) { |
| survey->filled = SURVEY_INFO_NOISE_DBM; |
| survey->noise = noise; |
| } |
| |
| lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| return ret; |
| } |
| |
| |
| |
| |
| /* |
| * Change interface |
| */ |
| |
| static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev, |
| enum nl80211_iftype type, u32 *flags, |
| struct vif_params *params) |
| { |
| struct lbs_private *priv = wiphy_priv(wiphy); |
| int ret = 0; |
| |
| if (dev == priv->mesh_dev) |
| return -EOPNOTSUPP; |
| |
| switch (type) { |
| case NL80211_IFTYPE_MONITOR: |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_ADHOC: |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| if (priv->iface_running) |
| ret = lbs_set_iface_type(priv, type); |
| |
| if (!ret) |
| priv->wdev->iftype = type; |
| |
| lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| return ret; |
| } |
| |
| |
| |
| /* |
| * IBSS (Ad-Hoc) |
| */ |
| |
| /* |
| * The firmware needs the following bits masked out of the beacon-derived |
| * capability field when associating/joining to a BSS: |
| * 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused) |
| */ |
| #define CAPINFO_MASK (~(0xda00)) |
| |
| |
| static void lbs_join_post(struct lbs_private *priv, |
| struct cfg80211_ibss_params *params, |
| u8 *bssid, u16 capability) |
| { |
| u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */ |
| 2 + 4 + /* basic rates */ |
| 2 + 1 + /* DS parameter */ |
| 2 + 2 + /* atim */ |
| 2 + 8]; /* extended rates */ |
| u8 *fake = fake_ie; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| /* |
| * For cfg80211_inform_bss, we'll need a fake IE, as we can't get |
| * the real IE from the firmware. So we fabricate a fake IE based on |
| * what the firmware actually sends (sniffed with wireshark). |
| */ |
| /* Fake SSID IE */ |
| *fake++ = WLAN_EID_SSID; |
| *fake++ = params->ssid_len; |
| memcpy(fake, params->ssid, params->ssid_len); |
| fake += params->ssid_len; |
| /* Fake supported basic rates IE */ |
| *fake++ = WLAN_EID_SUPP_RATES; |
| *fake++ = 4; |
| *fake++ = 0x82; |
| *fake++ = 0x84; |
| *fake++ = 0x8b; |
| *fake++ = 0x96; |
| /* Fake DS channel IE */ |
| *fake++ = WLAN_EID_DS_PARAMS; |
| *fake++ = 1; |
| *fake++ = params->channel->hw_value; |
| /* Fake IBSS params IE */ |
| *fake++ = WLAN_EID_IBSS_PARAMS; |
| *fake++ = 2; |
| *fake++ = 0; /* ATIM=0 */ |
| *fake++ = 0; |
| /* Fake extended rates IE, TODO: don't add this for 802.11b only, |
| * but I don't know how this could be checked */ |
| *fake++ = WLAN_EID_EXT_SUPP_RATES; |
| *fake++ = 8; |
| *fake++ = 0x0c; |
| *fake++ = 0x12; |
| *fake++ = 0x18; |
| *fake++ = 0x24; |
| *fake++ = 0x30; |
| *fake++ = 0x48; |
| *fake++ = 0x60; |
| *fake++ = 0x6c; |
| lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie); |
| |
| cfg80211_inform_bss(priv->wdev->wiphy, |
| params->channel, |
| bssid, |
| 0, |
| capability, |
| params->beacon_interval, |
| fake_ie, fake - fake_ie, |
| 0, GFP_KERNEL); |
| |
| memcpy(priv->wdev->ssid, params->ssid, params->ssid_len); |
| priv->wdev->ssid_len = params->ssid_len; |
| |
| cfg80211_ibss_joined(priv->dev, bssid, GFP_KERNEL); |
| |
| /* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */ |
| priv->connect_status = LBS_CONNECTED; |
| netif_carrier_on(priv->dev); |
| if (!priv->tx_pending_len) |
| netif_wake_queue(priv->dev); |
| |
| lbs_deb_leave(LBS_DEB_CFG80211); |
| } |
| |
| static int lbs_ibss_join_existing(struct lbs_private *priv, |
| struct cfg80211_ibss_params *params, |
| struct cfg80211_bss *bss) |
| { |
| const u8 *rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES); |
| struct cmd_ds_802_11_ad_hoc_join cmd; |
| u8 preamble = RADIO_PREAMBLE_SHORT; |
| int ret = 0; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| /* TODO: set preamble based on scan result */ |
| ret = lbs_set_radio(priv, preamble, 1); |
| if (ret) |
| goto out; |
| |
| /* |
| * Example CMD_802_11_AD_HOC_JOIN command: |
| * |
| * command 2c 00 CMD_802_11_AD_HOC_JOIN |
| * size 65 00 |
| * sequence xx xx |
| * result 00 00 |
| * bssid 02 27 27 97 2f 96 |
| * ssid 49 42 53 53 00 00 00 00 |
| * 00 00 00 00 00 00 00 00 |
| * 00 00 00 00 00 00 00 00 |
| * 00 00 00 00 00 00 00 00 |
| * type 02 CMD_BSS_TYPE_IBSS |
| * beacon period 64 00 |
| * dtim period 00 |
| * timestamp 00 00 00 00 00 00 00 00 |
| * localtime 00 00 00 00 00 00 00 00 |
| * IE DS 03 |
| * IE DS len 01 |
| * IE DS channel 01 |
| * reserveed 00 00 00 00 |
| * IE IBSS 06 |
| * IE IBSS len 02 |
| * IE IBSS atim 00 00 |
| * reserved 00 00 00 00 |
| * capability 02 00 |
| * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00 |
| * fail timeout ff 00 |
| * probe delay 00 00 |
| */ |
| memset(&cmd, 0, sizeof(cmd)); |
| cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| |
| memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN); |
| memcpy(cmd.bss.ssid, params->ssid, params->ssid_len); |
| cmd.bss.type = CMD_BSS_TYPE_IBSS; |
| cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval); |
| cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS; |
| cmd.bss.ds.header.len = 1; |
| cmd.bss.ds.channel = params->channel->hw_value; |
| cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS; |
| cmd.bss.ibss.header.len = 2; |
| cmd.bss.ibss.atimwindow = 0; |
| cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK); |
| |
| /* set rates to the intersection of our rates and the rates in the |
| bss */ |
| if (!rates_eid) { |
| lbs_add_rates(cmd.bss.rates); |
| } else { |
| int hw, i; |
| u8 rates_max = rates_eid[1]; |
| u8 *rates = cmd.bss.rates; |
| for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) { |
| u8 hw_rate = lbs_rates[hw].bitrate / 5; |
| for (i = 0; i < rates_max; i++) { |
| if (hw_rate == (rates_eid[i+2] & 0x7f)) { |
| u8 rate = rates_eid[i+2]; |
| if (rate == 0x02 || rate == 0x04 || |
| rate == 0x0b || rate == 0x16) |
| rate |= 0x80; |
| *rates++ = rate; |
| } |
| } |
| } |
| } |
| |
| /* Only v8 and below support setting this */ |
| if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) { |
| cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT); |
| cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME); |
| } |
| ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd); |
| if (ret) |
| goto out; |
| |
| /* |
| * This is a sample response to CMD_802_11_AD_HOC_JOIN: |
| * |
| * response 2c 80 |
| * size 09 00 |
| * sequence xx xx |
| * result 00 00 |
| * reserved 00 |
| */ |
| lbs_join_post(priv, params, bss->bssid, bss->capability); |
| |
| out: |
| lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| return ret; |
| } |
| |
| |
| |
| static int lbs_ibss_start_new(struct lbs_private *priv, |
| struct cfg80211_ibss_params *params) |
| { |
| struct cmd_ds_802_11_ad_hoc_start cmd; |
| struct cmd_ds_802_11_ad_hoc_result *resp = |
| (struct cmd_ds_802_11_ad_hoc_result *) &cmd; |
| u8 preamble = RADIO_PREAMBLE_SHORT; |
| int ret = 0; |
| u16 capability; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| ret = lbs_set_radio(priv, preamble, 1); |
| if (ret) |
| goto out; |
| |
| /* |
| * Example CMD_802_11_AD_HOC_START command: |
| * |
| * command 2b 00 CMD_802_11_AD_HOC_START |
| * size b1 00 |
| * sequence xx xx |
| * result 00 00 |
| * ssid 54 45 53 54 00 00 00 00 |
| * 00 00 00 00 00 00 00 00 |
| * 00 00 00 00 00 00 00 00 |
| * 00 00 00 00 00 00 00 00 |
| * bss type 02 |
| * beacon period 64 00 |
| * dtim period 00 |
| * IE IBSS 06 |
| * IE IBSS len 02 |
| * IE IBSS atim 00 00 |
| * reserved 00 00 00 00 |
| * IE DS 03 |
| * IE DS len 01 |
| * IE DS channel 01 |
| * reserved 00 00 00 00 |
| * probe delay 00 00 |
| * capability 02 00 |
| * rates 82 84 8b 96 (basic rates with have bit 7 set) |
| * 0c 12 18 24 30 48 60 6c |
| * padding 100 bytes |
| */ |
| memset(&cmd, 0, sizeof(cmd)); |
| cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| memcpy(cmd.ssid, params->ssid, params->ssid_len); |
| cmd.bsstype = CMD_BSS_TYPE_IBSS; |
| cmd.beaconperiod = cpu_to_le16(params->beacon_interval); |
| cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS; |
| cmd.ibss.header.len = 2; |
| cmd.ibss.atimwindow = 0; |
| cmd.ds.header.id = WLAN_EID_DS_PARAMS; |
| cmd.ds.header.len = 1; |
| cmd.ds.channel = params->channel->hw_value; |
| /* Only v8 and below support setting probe delay */ |
| if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) |
| cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME); |
| /* TODO: mix in WLAN_CAPABILITY_PRIVACY */ |
| capability = WLAN_CAPABILITY_IBSS; |
| cmd.capability = cpu_to_le16(capability); |
| lbs_add_rates(cmd.rates); |
| |
| |
| ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd); |
| if (ret) |
| goto out; |
| |
| /* |
| * This is a sample response to CMD_802_11_AD_HOC_JOIN: |
| * |
| * response 2b 80 |
| * size 14 00 |
| * sequence xx xx |
| * result 00 00 |
| * reserved 00 |
| * bssid 02 2b 7b 0f 86 0e |
| */ |
| lbs_join_post(priv, params, resp->bssid, capability); |
| |
| out: |
| lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| return ret; |
| } |
| |
| |
| static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_ibss_params *params) |
| { |
| struct lbs_private *priv = wiphy_priv(wiphy); |
| int ret = 0; |
| struct cfg80211_bss *bss; |
| DECLARE_SSID_BUF(ssid_buf); |
| |
| if (dev == priv->mesh_dev) |
| return -EOPNOTSUPP; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| if (!params->channel) { |
| ret = -ENOTSUPP; |
| goto out; |
| } |
| |
| ret = lbs_set_channel(priv, params->channel->hw_value); |
| if (ret) |
| goto out; |
| |
| /* Search if someone is beaconing. This assumes that the |
| * bss list is populated already */ |
| bss = cfg80211_get_bss(wiphy, params->channel, params->bssid, |
| params->ssid, params->ssid_len, |
| WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS); |
| |
| if (bss) { |
| ret = lbs_ibss_join_existing(priv, params, bss); |
| cfg80211_put_bss(bss); |
| } else |
| ret = lbs_ibss_start_new(priv, params); |
| |
| |
| out: |
| lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| return ret; |
| } |
| |
| |
| static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev) |
| { |
| struct lbs_private *priv = wiphy_priv(wiphy); |
| struct cmd_ds_802_11_ad_hoc_stop cmd; |
| int ret = 0; |
| |
| if (dev == priv->mesh_dev) |
| return -EOPNOTSUPP; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| memset(&cmd, 0, sizeof(cmd)); |
| cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd); |
| |
| /* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */ |
| lbs_mac_event_disconnected(priv); |
| |
| lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| return ret; |
| } |
| |
| |
| |
| |
| /* |
| * Initialization |
| */ |
| |
| static struct cfg80211_ops lbs_cfg80211_ops = { |
| .set_channel = lbs_cfg_set_channel, |
| .scan = lbs_cfg_scan, |
| .connect = lbs_cfg_connect, |
| .disconnect = lbs_cfg_disconnect, |
| .add_key = lbs_cfg_add_key, |
| .del_key = lbs_cfg_del_key, |
| .set_default_key = lbs_cfg_set_default_key, |
| .get_station = lbs_cfg_get_station, |
| .dump_survey = lbs_get_survey, |
| .change_virtual_intf = lbs_change_intf, |
| .join_ibss = lbs_join_ibss, |
| .leave_ibss = lbs_leave_ibss, |
| }; |
| |
| |
| /* |
| * At this time lbs_private *priv doesn't even exist, so we just allocate |
| * memory and don't initialize the wiphy further. This is postponed until we |
| * can talk to the firmware and happens at registration time in |
| * lbs_cfg_wiphy_register(). |
| */ |
| struct wireless_dev *lbs_cfg_alloc(struct device *dev) |
| { |
| int ret = 0; |
| struct wireless_dev *wdev; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); |
| if (!wdev) { |
| dev_err(dev, "cannot allocate wireless device\n"); |
| return ERR_PTR(-ENOMEM); |
| } |
| |
| wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private)); |
| if (!wdev->wiphy) { |
| dev_err(dev, "cannot allocate wiphy\n"); |
| ret = -ENOMEM; |
| goto err_wiphy_new; |
| } |
| |
| lbs_deb_leave(LBS_DEB_CFG80211); |
| return wdev; |
| |
| err_wiphy_new: |
| kfree(wdev); |
| lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| return ERR_PTR(ret); |
| } |
| |
| |
| static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv) |
| { |
| struct region_code_mapping { |
| const char *cn; |
| int code; |
| }; |
| |
| /* Section 5.17.2 */ |
| static const struct region_code_mapping regmap[] = { |
| {"US ", 0x10}, /* US FCC */ |
| {"CA ", 0x20}, /* Canada */ |
| {"EU ", 0x30}, /* ETSI */ |
| {"ES ", 0x31}, /* Spain */ |
| {"FR ", 0x32}, /* France */ |
| {"JP ", 0x40}, /* Japan */ |
| }; |
| size_t i; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| for (i = 0; i < ARRAY_SIZE(regmap); i++) |
| if (regmap[i].code == priv->regioncode) { |
| regulatory_hint(priv->wdev->wiphy, regmap[i].cn); |
| break; |
| } |
| |
| lbs_deb_leave(LBS_DEB_CFG80211); |
| } |
| |
| |
| /* |
| * This function get's called after lbs_setup_firmware() determined the |
| * firmware capabities. So we can setup the wiphy according to our |
| * hardware/firmware. |
| */ |
| int lbs_cfg_register(struct lbs_private *priv) |
| { |
| struct wireless_dev *wdev = priv->wdev; |
| int ret; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| wdev->wiphy->max_scan_ssids = 1; |
| wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
| |
| wdev->wiphy->interface_modes = |
| BIT(NL80211_IFTYPE_STATION) | |
| BIT(NL80211_IFTYPE_ADHOC); |
| if (lbs_rtap_supported(priv)) |
| wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); |
| if (lbs_mesh_activated(priv)) |
| wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MESH_POINT); |
| |
| wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz; |
| |
| /* |
| * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have |
| * never seen a firmware without WPA |
| */ |
| wdev->wiphy->cipher_suites = cipher_suites; |
| wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); |
| wdev->wiphy->reg_notifier = lbs_reg_notifier; |
| |
| ret = wiphy_register(wdev->wiphy); |
| if (ret < 0) |
| pr_err("cannot register wiphy device\n"); |
| |
| priv->wiphy_registered = true; |
| |
| ret = register_netdev(priv->dev); |
| if (ret) |
| pr_err("cannot register network device\n"); |
| |
| INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker); |
| |
| lbs_cfg_set_regulatory_hint(priv); |
| |
| lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| return ret; |
| } |
| |
| int lbs_reg_notifier(struct wiphy *wiphy, |
| struct regulatory_request *request) |
| { |
| struct lbs_private *priv = wiphy_priv(wiphy); |
| int ret; |
| |
| lbs_deb_enter_args(LBS_DEB_CFG80211, "cfg80211 regulatory domain " |
| "callback for domain %c%c\n", request->alpha2[0], |
| request->alpha2[1]); |
| |
| ret = lbs_set_11d_domain_info(priv, request, wiphy->bands); |
| |
| lbs_deb_leave(LBS_DEB_CFG80211); |
| return ret; |
| } |
| |
| void lbs_scan_deinit(struct lbs_private *priv) |
| { |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| cancel_delayed_work_sync(&priv->scan_work); |
| } |
| |
| |
| void lbs_cfg_free(struct lbs_private *priv) |
| { |
| struct wireless_dev *wdev = priv->wdev; |
| |
| lbs_deb_enter(LBS_DEB_CFG80211); |
| |
| if (!wdev) |
| return; |
| |
| if (priv->wiphy_registered) |
| wiphy_unregister(wdev->wiphy); |
| |
| if (wdev->wiphy) |
| wiphy_free(wdev->wiphy); |
| |
| kfree(wdev); |
| } |