* IOCTL handlers as well as command preperation and response routines
* for sending scan commands to the firmware.
*/
-#include <linux/ctype.h>
-#include <linux/if.h>
-#include <linux/netdevice.h>
-#include <linux/wireless.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
#include <linux/etherdevice.h>
-
-#include <net/ieee80211.h>
-#include <net/iw_handler.h>
-
+#include <linux/if_arp.h>
#include <asm/unaligned.h>
+#include <net/lib80211.h>
#include "host.h"
-#include "decl.h"
#include "dev.h"
#include "scan.h"
-#include "join.h"
+#include "assoc.h"
+#include "wext.h"
+#include "cmd.h"
//! Approximate amount of data needed to pass a scan result back to iwlist
#define MAX_SCAN_CELL_SIZE (IW_EV_ADDR_LEN \
- + IW_ESSID_MAX_SIZE \
+ + IEEE80211_MAX_SSID_LEN \
+ IW_EV_UINT_LEN \
+ IW_EV_FREQ_LEN \
+ IW_EV_QUAL_LEN \
- + IW_ESSID_MAX_SIZE \
+ + IEEE80211_MAX_SSID_LEN \
+ IW_EV_PARAM_LEN \
+ 40) /* 40 for WPAIE */
//! Memory needed to store a max sized channel List TLV for a firmware scan
-#define CHAN_TLV_MAX_SIZE (sizeof(struct mrvlietypesheader) \
+#define CHAN_TLV_MAX_SIZE (sizeof(struct mrvl_ie_header) \
+ (MRVDRV_MAX_CHANNELS_PER_SCAN \
* sizeof(struct chanscanparamset)))
//! Memory needed to store a max number/size SSID TLV for a firmware scan
-#define SSID_TLV_MAX_SIZE (1 * sizeof(struct mrvlietypes_ssidparamset))
+#define SSID_TLV_MAX_SIZE (1 * sizeof(struct mrvl_ie_ssid_param_set))
-//! Maximum memory needed for a lbs_scan_cmd_config with all TLVs at max
-#define MAX_SCAN_CFG_ALLOC (sizeof(struct lbs_scan_cmd_config) \
- + sizeof(struct mrvlietypes_numprobes) \
- + CHAN_TLV_MAX_SIZE \
- + SSID_TLV_MAX_SIZE)
+//! Maximum memory needed for a cmd_ds_802_11_scan with all TLVs at max
+#define MAX_SCAN_CFG_ALLOC (sizeof(struct cmd_ds_802_11_scan) \
+ + CHAN_TLV_MAX_SIZE + SSID_TLV_MAX_SIZE)
//! The maximum number of channels the firmware can scan per command
#define MRVDRV_MAX_CHANNELS_PER_SCAN 14
//! Scan time specified in the channel TLV for each channel for active scans
#define MRVDRV_ACTIVE_SCAN_CHAN_TIME 100
-static const u8 zeromac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
-static const u8 bcastmac[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
-
-
+#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
+static int lbs_ret_80211_scan(struct lbs_private *priv, unsigned long dummy,
+ struct cmd_header *resp);
/*********************************************************************/
/* */
/* */
/*********************************************************************/
-static inline void clear_bss_descriptor (struct bss_descriptor * bss)
+/**
+ * @brief Unsets the MSB on basic rates
+ *
+ * Scan through an array and unset the MSB for basic data rates.
+ *
+ * @param rates buffer of data rates
+ * @param len size of buffer
+ */
+static void lbs_unset_basic_rate_flags(u8 *rates, size_t len)
{
- /* Don't blow away ->list, just BSS data */
- memset(bss, 0, offsetof(struct bss_descriptor, list));
-}
+ int i;
-static inline int match_bss_no_security(struct lbs_802_11_security *secinfo,
- struct bss_descriptor * match_bss)
-{
- if ( !secinfo->wep_enabled
- && !secinfo->WPAenabled
- && !secinfo->WPA2enabled
- && match_bss->wpa_ie[0] != MFIE_TYPE_GENERIC
- && match_bss->rsn_ie[0] != MFIE_TYPE_RSN
- && !(match_bss->capability & WLAN_CAPABILITY_PRIVACY)) {
- return 1;
- }
- return 0;
+ for (i = 0; i < len; i++)
+ rates[i] &= 0x7f;
}
-static inline int match_bss_static_wep(struct lbs_802_11_security *secinfo,
- struct bss_descriptor * match_bss)
-{
- if ( secinfo->wep_enabled
- && !secinfo->WPAenabled
- && !secinfo->WPA2enabled
- && (match_bss->capability & WLAN_CAPABILITY_PRIVACY)) {
- return 1;
- }
- return 0;
-}
-static inline int match_bss_wpa(struct lbs_802_11_security *secinfo,
- struct bss_descriptor * match_bss)
+static inline void clear_bss_descriptor(struct bss_descriptor *bss)
{
- if ( !secinfo->wep_enabled
- && secinfo->WPAenabled
- && (match_bss->wpa_ie[0] == MFIE_TYPE_GENERIC)
- /* privacy bit may NOT be set in some APs like LinkSys WRT54G
- && (match_bss->capability & WLAN_CAPABILITY_PRIVACY)) {
- */
- ) {
- return 1;
- }
- return 0;
+ /* Don't blow away ->list, just BSS data */
+ memset(bss, 0, offsetof(struct bss_descriptor, list));
}
-static inline int match_bss_wpa2(struct lbs_802_11_security *secinfo,
- struct bss_descriptor * match_bss)
+/**
+ * @brief Compare two SSIDs
+ *
+ * @param ssid1 A pointer to ssid to compare
+ * @param ssid2 A pointer to ssid to compare
+ *
+ * @return 0: ssid is same, otherwise is different
+ */
+int lbs_ssid_cmp(uint8_t *ssid1, uint8_t ssid1_len, uint8_t *ssid2,
+ uint8_t ssid2_len)
{
- if ( !secinfo->wep_enabled
- && secinfo->WPA2enabled
- && (match_bss->rsn_ie[0] == MFIE_TYPE_RSN)
- /* privacy bit may NOT be set in some APs like LinkSys WRT54G
- && (match_bss->capability & WLAN_CAPABILITY_PRIVACY)) {
- */
- ) {
- return 1;
- }
- return 0;
+ if (ssid1_len != ssid2_len)
+ return -1;
+
+ return memcmp(ssid1, ssid2, ssid1_len);
}
-static inline int match_bss_dynamic_wep(struct lbs_802_11_security *secinfo,
- struct bss_descriptor * match_bss)
+static inline int is_same_network(struct bss_descriptor *src,
+ struct bss_descriptor *dst)
{
- if ( !secinfo->wep_enabled
- && !secinfo->WPAenabled
- && !secinfo->WPA2enabled
- && (match_bss->wpa_ie[0] != MFIE_TYPE_GENERIC)
- && (match_bss->rsn_ie[0] != MFIE_TYPE_RSN)
- && (match_bss->capability & WLAN_CAPABILITY_PRIVACY)) {
- return 1;
- }
- return 0;
+ /* A network is only a duplicate if the channel, BSSID, and ESSID
+ * all match. We treat all <hidden> with the same BSSID and channel
+ * as one network */
+ return ((src->ssid_len == dst->ssid_len) &&
+ (src->channel == dst->channel) &&
+ !compare_ether_addr(src->bssid, dst->bssid) &&
+ !memcmp(src->ssid, dst->ssid, src->ssid_len));
}
+
+
+/*********************************************************************/
+/* */
+/* Region channel support */
+/* */
+/*********************************************************************/
+
+#define LBS_TX_PWR_DEFAULT 20 /*100mW */
+#define LBS_TX_PWR_US_DEFAULT 20 /*100mW */
+#define LBS_TX_PWR_JP_DEFAULT 16 /*50mW */
+#define LBS_TX_PWR_FR_DEFAULT 20 /*100mW */
+#define LBS_TX_PWR_EMEA_DEFAULT 20 /*100mW */
+
+/* Format { channel, frequency (MHz), maxtxpower } */
+/* band: 'B/G', region: USA FCC/Canada IC */
+static struct chan_freq_power channel_freq_power_US_BG[] = {
+ {1, 2412, LBS_TX_PWR_US_DEFAULT},
+ {2, 2417, LBS_TX_PWR_US_DEFAULT},
+ {3, 2422, LBS_TX_PWR_US_DEFAULT},
+ {4, 2427, LBS_TX_PWR_US_DEFAULT},
+ {5, 2432, LBS_TX_PWR_US_DEFAULT},
+ {6, 2437, LBS_TX_PWR_US_DEFAULT},
+ {7, 2442, LBS_TX_PWR_US_DEFAULT},
+ {8, 2447, LBS_TX_PWR_US_DEFAULT},
+ {9, 2452, LBS_TX_PWR_US_DEFAULT},
+ {10, 2457, LBS_TX_PWR_US_DEFAULT},
+ {11, 2462, LBS_TX_PWR_US_DEFAULT}
+};
+
+/* band: 'B/G', region: Europe ETSI */
+static struct chan_freq_power channel_freq_power_EU_BG[] = {
+ {1, 2412, LBS_TX_PWR_EMEA_DEFAULT},
+ {2, 2417, LBS_TX_PWR_EMEA_DEFAULT},
+ {3, 2422, LBS_TX_PWR_EMEA_DEFAULT},
+ {4, 2427, LBS_TX_PWR_EMEA_DEFAULT},
+ {5, 2432, LBS_TX_PWR_EMEA_DEFAULT},
+ {6, 2437, LBS_TX_PWR_EMEA_DEFAULT},
+ {7, 2442, LBS_TX_PWR_EMEA_DEFAULT},
+ {8, 2447, LBS_TX_PWR_EMEA_DEFAULT},
+ {9, 2452, LBS_TX_PWR_EMEA_DEFAULT},
+ {10, 2457, LBS_TX_PWR_EMEA_DEFAULT},
+ {11, 2462, LBS_TX_PWR_EMEA_DEFAULT},
+ {12, 2467, LBS_TX_PWR_EMEA_DEFAULT},
+ {13, 2472, LBS_TX_PWR_EMEA_DEFAULT}
+};
+
+/* band: 'B/G', region: Spain */
+static struct chan_freq_power channel_freq_power_SPN_BG[] = {
+ {10, 2457, LBS_TX_PWR_DEFAULT},
+ {11, 2462, LBS_TX_PWR_DEFAULT}
+};
+
+/* band: 'B/G', region: France */
+static struct chan_freq_power channel_freq_power_FR_BG[] = {
+ {10, 2457, LBS_TX_PWR_FR_DEFAULT},
+ {11, 2462, LBS_TX_PWR_FR_DEFAULT},
+ {12, 2467, LBS_TX_PWR_FR_DEFAULT},
+ {13, 2472, LBS_TX_PWR_FR_DEFAULT}
+};
+
+/* band: 'B/G', region: Japan */
+static struct chan_freq_power channel_freq_power_JPN_BG[] = {
+ {1, 2412, LBS_TX_PWR_JP_DEFAULT},
+ {2, 2417, LBS_TX_PWR_JP_DEFAULT},
+ {3, 2422, LBS_TX_PWR_JP_DEFAULT},
+ {4, 2427, LBS_TX_PWR_JP_DEFAULT},
+ {5, 2432, LBS_TX_PWR_JP_DEFAULT},
+ {6, 2437, LBS_TX_PWR_JP_DEFAULT},
+ {7, 2442, LBS_TX_PWR_JP_DEFAULT},
+ {8, 2447, LBS_TX_PWR_JP_DEFAULT},
+ {9, 2452, LBS_TX_PWR_JP_DEFAULT},
+ {10, 2457, LBS_TX_PWR_JP_DEFAULT},
+ {11, 2462, LBS_TX_PWR_JP_DEFAULT},
+ {12, 2467, LBS_TX_PWR_JP_DEFAULT},
+ {13, 2472, LBS_TX_PWR_JP_DEFAULT},
+ {14, 2484, LBS_TX_PWR_JP_DEFAULT}
+};
+
/**
- * @brief Check if a scanned network compatible with the driver settings
- *
- * WEP WPA WPA2 ad-hoc encrypt Network
- * enabled enabled enabled AES mode privacy WPA WPA2 Compatible
- * 0 0 0 0 NONE 0 0 0 yes No security
- * 1 0 0 0 NONE 1 0 0 yes Static WEP
- * 0 1 0 0 x 1x 1 x yes WPA
- * 0 0 1 0 x 1x x 1 yes WPA2
- * 0 0 0 1 NONE 1 0 0 yes Ad-hoc AES
- * 0 0 0 0 !=NONE 1 0 0 yes Dynamic WEP
- *
- *
- * @param adapter A pointer to struct lbs_adapter
- * @param index Index in scantable to check against current driver settings
- * @param mode Network mode: Infrastructure or IBSS
+ * the structure for channel, frequency and power
+ */
+struct region_cfp_table {
+ u8 region;
+ struct chan_freq_power *cfp_BG;
+ int cfp_no_BG;
+};
+
+/**
+ * the structure for the mapping between region and CFP
+ */
+static struct region_cfp_table region_cfp_table[] = {
+ {0x10, /*US FCC */
+ channel_freq_power_US_BG,
+ ARRAY_SIZE(channel_freq_power_US_BG),
+ }
+ ,
+ {0x20, /*CANADA IC */
+ channel_freq_power_US_BG,
+ ARRAY_SIZE(channel_freq_power_US_BG),
+ }
+ ,
+ {0x30, /*EU*/ channel_freq_power_EU_BG,
+ ARRAY_SIZE(channel_freq_power_EU_BG),
+ }
+ ,
+ {0x31, /*SPAIN*/ channel_freq_power_SPN_BG,
+ ARRAY_SIZE(channel_freq_power_SPN_BG),
+ }
+ ,
+ {0x32, /*FRANCE*/ channel_freq_power_FR_BG,
+ ARRAY_SIZE(channel_freq_power_FR_BG),
+ }
+ ,
+ {0x40, /*JAPAN*/ channel_freq_power_JPN_BG,
+ ARRAY_SIZE(channel_freq_power_JPN_BG),
+ }
+ ,
+/*Add new region here */
+};
+
+/**
+ * @brief This function finds the CFP in
+ * region_cfp_table based on region and band parameter.
*
- * @return Index in scantable, or error code if negative
+ * @param region The region code
+ * @param band The band
+ * @param cfp_no A pointer to CFP number
+ * @return A pointer to CFP
*/
-static int is_network_compatible(struct lbs_adapter *adapter,
- struct bss_descriptor * bss, u8 mode)
+static struct chan_freq_power *lbs_get_region_cfp_table(u8 region, int *cfp_no)
{
- int matched = 0;
+ int i, end;
- lbs_deb_enter(LBS_DEB_SCAN);
+ lbs_deb_enter(LBS_DEB_MAIN);
- if (bss->mode != mode)
- goto done;
+ end = ARRAY_SIZE(region_cfp_table);
- if ((matched = match_bss_no_security(&adapter->secinfo, bss))) {
- goto done;
- } else if ((matched = match_bss_static_wep(&adapter->secinfo, bss))) {
- goto done;
- } else if ((matched = match_bss_wpa(&adapter->secinfo, bss))) {
- lbs_deb_scan(
- "is_network_compatible() WPA: wpa_ie=%#x "
- "wpa2_ie=%#x WEP=%s WPA=%s WPA2=%s "
- "privacy=%#x\n", bss->wpa_ie[0], bss->rsn_ie[0],
- adapter->secinfo.wep_enabled ? "e" : "d",
- adapter->secinfo.WPAenabled ? "e" : "d",
- adapter->secinfo.WPA2enabled ? "e" : "d",
- (bss->capability & WLAN_CAPABILITY_PRIVACY));
- goto done;
- } else if ((matched = match_bss_wpa2(&adapter->secinfo, bss))) {
- lbs_deb_scan(
- "is_network_compatible() WPA2: wpa_ie=%#x "
- "wpa2_ie=%#x WEP=%s WPA=%s WPA2=%s "
- "privacy=%#x\n", bss->wpa_ie[0], bss->rsn_ie[0],
- adapter->secinfo.wep_enabled ? "e" : "d",
- adapter->secinfo.WPAenabled ? "e" : "d",
- adapter->secinfo.WPA2enabled ? "e" : "d",
- (bss->capability & WLAN_CAPABILITY_PRIVACY));
- goto done;
- } else if ((matched = match_bss_dynamic_wep(&adapter->secinfo, bss))) {
- lbs_deb_scan(
- "is_network_compatible() dynamic WEP: "
- "wpa_ie=%#x wpa2_ie=%#x privacy=%#x\n",
- bss->wpa_ie[0], bss->rsn_ie[0],
- (bss->capability & WLAN_CAPABILITY_PRIVACY));
- goto done;
+ for (i = 0; i < end ; i++) {
+ lbs_deb_main("region_cfp_table[i].region=%d\n",
+ region_cfp_table[i].region);
+ if (region_cfp_table[i].region == region) {
+ *cfp_no = region_cfp_table[i].cfp_no_BG;
+ lbs_deb_leave(LBS_DEB_MAIN);
+ return region_cfp_table[i].cfp_BG;
+ }
}
- /* bss security settings don't match those configured on card */
- lbs_deb_scan(
- "is_network_compatible() FAILED: wpa_ie=%#x "
- "wpa2_ie=%#x WEP=%s WPA=%s WPA2=%s privacy=%#x\n",
- bss->wpa_ie[0], bss->rsn_ie[0],
- adapter->secinfo.wep_enabled ? "e" : "d",
- adapter->secinfo.WPAenabled ? "e" : "d",
- adapter->secinfo.WPA2enabled ? "e" : "d",
- (bss->capability & WLAN_CAPABILITY_PRIVACY));
-
-done:
- lbs_deb_leave_args(LBS_DEB_SCAN, "matched: %d", matched);
- return matched;
+ lbs_deb_leave_args(LBS_DEB_MAIN, "ret NULL");
+ return NULL;
}
-/**
- * @brief Compare two SSIDs
- *
- * @param ssid1 A pointer to ssid to compare
- * @param ssid2 A pointer to ssid to compare
- *
- * @return 0--ssid is same, otherwise is different
- */
-int lbs_ssid_cmp(u8 *ssid1, u8 ssid1_len, u8 *ssid2, u8 ssid2_len)
+int lbs_set_regiontable(struct lbs_private *priv, u8 region, u8 band)
{
- if (ssid1_len != ssid2_len)
- return -1;
+ int ret = 0;
+ int i = 0;
- return memcmp(ssid1, ssid2, ssid1_len);
+ struct chan_freq_power *cfp;
+ int cfp_no;
+
+ lbs_deb_enter(LBS_DEB_MAIN);
+
+ memset(priv->region_channel, 0, sizeof(priv->region_channel));
+
+ cfp = lbs_get_region_cfp_table(region, &cfp_no);
+ if (cfp != NULL) {
+ priv->region_channel[i].nrcfp = cfp_no;
+ priv->region_channel[i].CFP = cfp;
+ } else {
+ lbs_deb_main("wrong region code %#x in band B/G\n",
+ region);
+ ret = -1;
+ goto out;
+ }
+ priv->region_channel[i].valid = 1;
+ priv->region_channel[i].region = region;
+ priv->region_channel[i].band = band;
+ i++;
+out:
+ lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
+ return ret;
}
/* */
/*********************************************************************/
-
/**
* @brief Create a channel list for the driver to scan based on region info
*
*
* @param priv A pointer to struct lbs_private structure
* @param scanchanlist Output parameter: resulting channel list to scan
- * @param filteredscan Flag indicating whether or not a BSSID or SSID filter
- * is being sent in the command to firmware. Used to
- * increase the number of channels sent in a scan
- * command and to disable the firmware channel scan
- * filter.
*
* @return void
*/
-static void lbs_scan_create_channel_list(struct lbs_private *priv,
- struct chanscanparamset * scanchanlist,
- u8 filteredscan)
+static int lbs_scan_create_channel_list(struct lbs_private *priv,
+ struct chanscanparamset *scanchanlist)
{
-
- struct lbs_adapter *adapter = priv->adapter;
struct region_channel *scanregion;
struct chan_freq_power *cfp;
int rgnidx;
int chanidx;
int nextchan;
- u8 scantype;
-
- lbs_deb_enter_args(LBS_DEB_SCAN, "filteredscan %d", filteredscan);
+ uint8_t scantype;
chanidx = 0;
*/
scantype = CMD_SCAN_TYPE_ACTIVE;
- for (rgnidx = 0; rgnidx < ARRAY_SIZE(adapter->region_channel); rgnidx++) {
- if (priv->adapter->enable11d &&
- (adapter->connect_status != LBS_CONNECTED) &&
- (adapter->mesh_connect_status != LBS_CONNECTED)) {
- /* Scan all the supported chan for the first scan */
- if (!adapter->universal_channel[rgnidx].valid)
- continue;
- scanregion = &adapter->universal_channel[rgnidx];
-
- /* clear the parsed_region_chan for the first scan */
- memset(&adapter->parsed_region_chan, 0x00,
- sizeof(adapter->parsed_region_chan));
- } else {
- if (!adapter->region_channel[rgnidx].valid)
- continue;
- scanregion = &adapter->region_channel[rgnidx];
- }
+ for (rgnidx = 0; rgnidx < ARRAY_SIZE(priv->region_channel); rgnidx++) {
+ if (!priv->region_channel[rgnidx].valid)
+ continue;
+ scanregion = &priv->region_channel[rgnidx];
- for (nextchan = 0;
- nextchan < scanregion->nrcfp; nextchan++, chanidx++) {
+ for (nextchan = 0; nextchan < scanregion->nrcfp; nextchan++, chanidx++) {
+ struct chanscanparamset *chan = &scanchanlist[chanidx];
cfp = scanregion->CFP + nextchan;
- if (priv->adapter->enable11d) {
- scantype =
- lbs_get_scan_type_11d(cfp->channel,
- &adapter->
- parsed_region_chan);
- }
-
- switch (scanregion->band) {
- case BAND_B:
- case BAND_G:
- default:
- scanchanlist[chanidx].radiotype =
- CMD_SCAN_RADIO_TYPE_BG;
- break;
- }
+ if (scanregion->band == BAND_B || scanregion->band == BAND_G)
+ chan->radiotype = CMD_SCAN_RADIO_TYPE_BG;
if (scantype == CMD_SCAN_TYPE_PASSIVE) {
- scanchanlist[chanidx].maxscantime =
- cpu_to_le16(MRVDRV_PASSIVE_SCAN_CHAN_TIME);
- scanchanlist[chanidx].chanscanmode.passivescan =
- 1;
+ chan->maxscantime = cpu_to_le16(MRVDRV_PASSIVE_SCAN_CHAN_TIME);
+ chan->chanscanmode.passivescan = 1;
} else {
- scanchanlist[chanidx].maxscantime =
- cpu_to_le16(MRVDRV_ACTIVE_SCAN_CHAN_TIME);
- scanchanlist[chanidx].chanscanmode.passivescan =
- 0;
+ chan->maxscantime = cpu_to_le16(MRVDRV_ACTIVE_SCAN_CHAN_TIME);
+ chan->chanscanmode.passivescan = 0;
}
- scanchanlist[chanidx].channumber = cfp->channel;
-
- if (filteredscan) {
- scanchanlist[chanidx].chanscanmode.
- disablechanfilt = 1;
- }
+ chan->channumber = cfp->channel;
}
}
+ return chanidx;
}
-
-/* Delayed partial scan worker */
-void lbs_scan_worker(struct work_struct *work)
+/*
+ * Add SSID TLV of the form:
+ *
+ * TLV-ID SSID 00 00
+ * length 06 00
+ * ssid 4d 4e 54 45 53 54
+ */
+static int lbs_scan_add_ssid_tlv(struct lbs_private *priv, u8 *tlv)
{
- struct lbs_private *priv = container_of(work,
- struct lbs_private,
- scan_work.work);
+ struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;
- lbs_scan_networks(priv, NULL, 0);
+ ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
+ ssid_tlv->header.len = cpu_to_le16(priv->scan_ssid_len);
+ memcpy(ssid_tlv->ssid, priv->scan_ssid, priv->scan_ssid_len);
+ return sizeof(ssid_tlv->header) + priv->scan_ssid_len;
}
-
-/**
- * @brief Construct a lbs_scan_cmd_config structure to use in issue scan cmds
- *
- * Application layer or other functions can invoke lbs_scan_networks
- * with a scan configuration supplied in a lbs_ioctl_user_scan_cfg struct.
- * This structure is used as the basis of one or many lbs_scan_cmd_config
- * commands that are sent to the command processing module and sent to
- * firmware.
- *
- * Create a lbs_scan_cmd_config based on the following user supplied
- * parameters (if present):
- * - SSID filter
- * - BSSID filter
- * - Number of Probes to be sent
- * - channel list
- *
- * If the SSID or BSSID filter is not present, disable/clear the filter.
- * If the number of probes is not set, use the adapter default setting
- * Qualify the channel
+/*
+ * Add CHANLIST TLV of the form
*
- * @param priv A pointer to struct lbs_private structure
- * @param puserscanin NULL or pointer to scan configuration parameters
- * @param ppchantlvout Output parameter: Pointer to the start of the
- * channel TLV portion of the output scan config
- * @param pscanchanlist Output parameter: Pointer to the resulting channel
- * list to scan
- * @param pmaxchanperscan Output parameter: Number of channels to scan for
- * each issuance of the firmware scan command
- * @param pfilteredscan Output parameter: Flag indicating whether or not
- * a BSSID or SSID filter is being sent in the
- * command to firmware. Used to increase the number
- * of channels sent in a scan command and to
- * disable the firmware channel scan filter.
- * @param pscancurrentonly Output parameter: Flag indicating whether or not
- * we are only scanning our current active channel
+ * TLV-ID CHANLIST 01 01
+ * length 5b 00
+ * channel 1 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
+ * channel 3 00 03 00 00 00 64 00
+ * channel 4 00 04 00 00 00 64 00
+ * channel 5 00 05 00 00 00 64 00
+ * channel 6 00 06 00 00 00 64 00
+ * channel 7 00 07 00 00 00 64 00
+ * channel 8 00 08 00 00 00 64 00
+ * channel 9 00 09 00 00 00 64 00
+ * channel 10 00 0a 00 00 00 64 00
+ * channel 11 00 0b 00 00 00 64 00
+ * channel 12 00 0c 00 00 00 64 00
+ * channel 13 00 0d 00 00 00 64 00
*
- * @return resulting scan configuration
*/
-static struct lbs_scan_cmd_config *
-lbs_scan_setup_scan_config(struct lbs_private *priv,
- const struct lbs_ioctl_user_scan_cfg *puserscanin,
- struct mrvlietypes_chanlistparamset ** ppchantlvout,
- struct chanscanparamset * pscanchanlist,
- int *pmaxchanperscan,
- u8 * pfilteredscan,
- u8 * pscancurrentonly)
+static int lbs_scan_add_chanlist_tlv(uint8_t *tlv,
+ struct chanscanparamset *chan_list,
+ int chan_count)
{
- struct mrvlietypes_numprobes *pnumprobestlv;
- struct mrvlietypes_ssidparamset *pssidtlv;
- struct lbs_scan_cmd_config *pscancfgout = NULL;
- u8 *ptlvpos;
- u16 numprobes;
- int chanidx;
- int scantype;
- int scandur;
- int channel;
- int radiotype;
-
- lbs_deb_enter(LBS_DEB_SCAN);
-
- pscancfgout = kzalloc(MAX_SCAN_CFG_ALLOC, GFP_KERNEL);
- if (pscancfgout == NULL)
- goto out;
-
- /* The tlvbufferlen is calculated for each scan command. The TLVs added
- * in this routine will be preserved since the routine that sends
- * the command will append channelTLVs at *ppchantlvout. The difference
- * between the *ppchantlvout and the tlvbuffer start will be used
- * to calculate the size of anything we add in this routine.
- */
- pscancfgout->tlvbufferlen = 0;
-
- /* Running tlv pointer. Assigned to ppchantlvout at end of function
- * so later routines know where channels can be added to the command buf
- */
- ptlvpos = pscancfgout->tlvbuffer;
-
- /*
- * Set the initial scan paramters for progressive scanning. If a specific
- * BSSID or SSID is used, the number of channels in the scan command
- * will be increased to the absolute maximum
- */
- *pmaxchanperscan = MRVDRV_CHANNELS_PER_SCAN_CMD;
-
- /* Initialize the scan as un-filtered by firmware, set to TRUE below if
- * a SSID or BSSID filter is sent in the command
- */
- *pfilteredscan = 0;
-
- /* Initialize the scan as not being only on the current channel. If
- * the channel list is customized, only contains one channel, and
- * is the active channel, this is set true and data flow is not halted.
- */
- *pscancurrentonly = 0;
-
- if (puserscanin) {
- /* Set the bss type scan filter, use adapter setting if unset */
- pscancfgout->bsstype =
- puserscanin->bsstype ? puserscanin->bsstype : CMD_BSS_TYPE_ANY;
-
- /* Set the number of probes to send, use adapter setting if unset */
- numprobes = puserscanin->numprobes ? puserscanin->numprobes : 0;
-
- /*
- * Set the BSSID filter to the incoming configuration,
- * if non-zero. If not set, it will remain disabled (all zeros).
- */
- memcpy(pscancfgout->bssid, puserscanin->bssid,
- sizeof(pscancfgout->bssid));
-
- if (puserscanin->ssid_len) {
- pssidtlv =
- (struct mrvlietypes_ssidparamset *) pscancfgout->
- tlvbuffer;
- pssidtlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
- pssidtlv->header.len = cpu_to_le16(puserscanin->ssid_len);
- memcpy(pssidtlv->ssid, puserscanin->ssid,
- puserscanin->ssid_len);
- ptlvpos += sizeof(pssidtlv->header) + puserscanin->ssid_len;
- }
-
- /*
- * The default number of channels sent in the command is low to
- * ensure the response buffer from the firmware does not truncate
- * scan results. That is not an issue with an SSID or BSSID
- * filter applied to the scan results in the firmware.
- */
- if ( puserscanin->ssid_len
- || (compare_ether_addr(pscancfgout->bssid, &zeromac[0]) != 0)) {
- *pmaxchanperscan = MRVDRV_MAX_CHANNELS_PER_SCAN;
- *pfilteredscan = 1;
- }
- } else {
- pscancfgout->bsstype = CMD_BSS_TYPE_ANY;
- numprobes = 0;
- }
-
- /* If the input config or adapter has the number of Probes set, add tlv */
- if (numprobes) {
- pnumprobestlv = (struct mrvlietypes_numprobes *) ptlvpos;
- pnumprobestlv->header.type = cpu_to_le16(TLV_TYPE_NUMPROBES);
- pnumprobestlv->header.len = cpu_to_le16(2);
- pnumprobestlv->numprobes = cpu_to_le16(numprobes);
-
- ptlvpos += sizeof(*pnumprobestlv);
- }
-
- /*
- * Set the output for the channel TLV to the address in the tlv buffer
- * past any TLVs that were added in this fuction (SSID, numprobes).
- * channel TLVs will be added past this for each scan command, preserving
- * the TLVs that were previously added.
- */
- *ppchantlvout = (struct mrvlietypes_chanlistparamset *) ptlvpos;
-
- if (!puserscanin || !puserscanin->chanlist[0].channumber) {
- /* Create a default channel scan list */
- lbs_deb_scan("creating full region channel list\n");
- lbs_scan_create_channel_list(priv, pscanchanlist,
- *pfilteredscan);
- goto out;
- }
-
- for (chanidx = 0;
- chanidx < LBS_IOCTL_USER_SCAN_CHAN_MAX
- && puserscanin->chanlist[chanidx].channumber; chanidx++) {
-
- channel = puserscanin->chanlist[chanidx].channumber;
- (pscanchanlist + chanidx)->channumber = channel;
-
- radiotype = puserscanin->chanlist[chanidx].radiotype;
- (pscanchanlist + chanidx)->radiotype = radiotype;
-
- scantype = puserscanin->chanlist[chanidx].scantype;
-
- if (scantype == CMD_SCAN_TYPE_PASSIVE) {
- (pscanchanlist +
- chanidx)->chanscanmode.passivescan = 1;
- } else {
- (pscanchanlist +
- chanidx)->chanscanmode.passivescan = 0;
- }
-
- if (puserscanin->chanlist[chanidx].scantime) {
- scandur = puserscanin->chanlist[chanidx].scantime;
- } else {
- if (scantype == CMD_SCAN_TYPE_PASSIVE) {
- scandur = MRVDRV_PASSIVE_SCAN_CHAN_TIME;
- } else {
- scandur = MRVDRV_ACTIVE_SCAN_CHAN_TIME;
- }
- }
-
- (pscanchanlist + chanidx)->minscantime =
- cpu_to_le16(scandur);
- (pscanchanlist + chanidx)->maxscantime =
- cpu_to_le16(scandur);
- }
-
- /* Check if we are only scanning the current channel */
- if ((chanidx == 1) &&
- (puserscanin->chanlist[0].channumber ==
- priv->adapter->curbssparams.channel)) {
- *pscancurrentonly = 1;
- lbs_deb_scan("scanning current channel only");
- }
+ size_t size = sizeof(struct chanscanparamset) *chan_count;
+ struct mrvl_ie_chanlist_param_set *chan_tlv = (void *)tlv;
-out:
- return pscancfgout;
+ chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
+ memcpy(chan_tlv->chanscanparam, chan_list, size);
+ chan_tlv->header.len = cpu_to_le16(size);
+ return sizeof(chan_tlv->header) + size;
}
-/**
- * @brief Construct and send multiple scan config commands to the firmware
- *
- * Only used from lbs_scan_networks()
- *
- * Previous routines have created a lbs_scan_cmd_config with any requested
- * TLVs. This function splits the channel TLV into maxchanperscan lists
- * and sends the portion of the channel TLV along with the other TLVs
- * to the lbs_cmd routines for execution in the firmware.
+/*
+ * Add RATES TLV of the form
*
- * @param priv A pointer to struct lbs_private structure
- * @param maxchanperscan Maximum number channels to be included in each
- * scan command sent to firmware
- * @param filteredscan Flag indicating whether or not a BSSID or SSID
- * filter is being used for the firmware command
- * scan command sent to firmware
- * @param pscancfgout Scan configuration used for this scan.
- * @param pchantlvout Pointer in the pscancfgout where the channel TLV
- * should start. This is past any other TLVs that
- * must be sent down in each firmware command.
- * @param pscanchanlist List of channels to scan in maxchanperscan segments
+ * TLV-ID RATES 01 00
+ * length 0e 00
+ * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c
*
- * @return 0 or error return otherwise
+ * The rates are in lbs_bg_rates[], but for the 802.11b
+ * rates the high bit isn't set.
*/
-static int lbs_scan_channel_list(struct lbs_private *priv,
- int maxchanperscan,
- u8 filteredscan,
- struct lbs_scan_cmd_config *pscancfgout,
- struct mrvlietypes_chanlistparamset * pchantlvout,
- struct chanscanparamset * pscanchanlist,
- const struct lbs_ioctl_user_scan_cfg *puserscanin,
- int full_scan)
+static int lbs_scan_add_rates_tlv(uint8_t *tlv)
{
- struct chanscanparamset *ptmpchan;
- struct chanscanparamset *pstartchan;
- u8 scanband;
- int doneearly;
- int tlvidx;
- int ret = 0;
- int scanned = 0;
- union iwreq_data wrqu;
-
- lbs_deb_enter_args(LBS_DEB_SCAN, "maxchanperscan %d, filteredscan %d, "
- "full_scan %d", maxchanperscan, filteredscan, full_scan);
-
- if (!pscancfgout || !pchantlvout || !pscanchanlist) {
- lbs_deb_scan("pscancfgout, pchantlvout or "
- "pscanchanlist is NULL\n");
- ret = -1;
- goto out;
- }
-
- pchantlvout->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
-
- /* Set the temp channel struct pointer to the start of the desired list */
- ptmpchan = pscanchanlist;
-
- if (priv->adapter->last_scanned_channel && !puserscanin)
- ptmpchan += priv->adapter->last_scanned_channel;
-
- /* Loop through the desired channel list, sending a new firmware scan
- * commands for each maxchanperscan channels (or for 1,6,11 individually
- * if configured accordingly)
- */
- while (ptmpchan->channumber) {
-
- tlvidx = 0;
- pchantlvout->header.len = 0;
- scanband = ptmpchan->radiotype;
- pstartchan = ptmpchan;
- doneearly = 0;
-
- /* Construct the channel TLV for the scan command. Continue to
- * insert channel TLVs until:
- * - the tlvidx hits the maximum configured per scan command
- * - the next channel to insert is 0 (end of desired channel list)
- * - doneearly is set (controlling individual scanning of 1,6,11)
- */
- while (tlvidx < maxchanperscan && ptmpchan->channumber
- && !doneearly && scanned < 2) {
-
- lbs_deb_scan("channel %d, radio %d, passive %d, "
- "dischanflt %d, maxscantime %d\n",
- ptmpchan->channumber,
- ptmpchan->radiotype,
- ptmpchan->chanscanmode.passivescan,
- ptmpchan->chanscanmode.disablechanfilt,
- ptmpchan->maxscantime);
-
- /* Copy the current channel TLV to the command being prepared */
- memcpy(pchantlvout->chanscanparam + tlvidx,
- ptmpchan, sizeof(pchantlvout->chanscanparam));
-
- /* Increment the TLV header length by the size appended */
- /* Ew, it would be _so_ nice if we could just declare the
- variable little-endian and let GCC handle it for us */
- pchantlvout->header.len =
- cpu_to_le16(le16_to_cpu(pchantlvout->header.len) +
- sizeof(pchantlvout->chanscanparam));
-
- /*
- * The tlv buffer length is set to the number of bytes of the
- * between the channel tlv pointer and the start of the
- * tlv buffer. This compensates for any TLVs that were appended
- * before the channel list.
- */
- pscancfgout->tlvbufferlen = ((u8 *) pchantlvout
- - pscancfgout->tlvbuffer);
-
- /* Add the size of the channel tlv header and the data length */
- pscancfgout->tlvbufferlen +=
- (sizeof(pchantlvout->header)
- + le16_to_cpu(pchantlvout->header.len));
-
- /* Increment the index to the channel tlv we are constructing */
- tlvidx++;
-
- doneearly = 0;
-
- /* Stop the loop if the *current* channel is in the 1,6,11 set
- * and we are not filtering on a BSSID or SSID.
- */
- if (!filteredscan && (ptmpchan->channumber == 1
- || ptmpchan->channumber == 6
- || ptmpchan->channumber == 11)) {
- doneearly = 1;
- }
-
- /* Increment the tmp pointer to the next channel to be scanned */
- ptmpchan++;
- scanned++;
-
- /* Stop the loop if the *next* channel is in the 1,6,11 set.
- * This will cause it to be the only channel scanned on the next
- * interation
- */
- if (!filteredscan && (ptmpchan->channumber == 1
- || ptmpchan->channumber == 6
- || ptmpchan->channumber == 11)) {
- doneearly = 1;
- }
- }
-
- /* Send the scan command to the firmware with the specified cfg */
- ret = lbs_prepare_and_send_command(priv, CMD_802_11_SCAN, 0,
- 0, 0, pscancfgout);
- if (scanned >= 2 && !full_scan) {
- ret = 0;
- goto done;
- }
- scanned = 0;
- }
-
-done:
- priv->adapter->last_scanned_channel = ptmpchan->channumber;
-
- if (priv->adapter->last_scanned_channel) {
- /* Schedule the next part of the partial scan */
- if (!full_scan && !priv->adapter->surpriseremoved) {
- cancel_delayed_work(&priv->scan_work);
- queue_delayed_work(priv->work_thread, &priv->scan_work,
- msecs_to_jiffies(300));
- }
- } else {
- /* All done, tell userspace the scan table has been updated */
- memset(&wrqu, 0, sizeof(union iwreq_data));
- wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
+ int i;
+ struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
+
+ rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
+ tlv += sizeof(rate_tlv->header);
+ for (i = 0; i < MAX_RATES; i++) {
+ *tlv = lbs_bg_rates[i];
+ if (*tlv == 0)
+ break;
+ /* This code makes sure that the 802.11b rates (1 MBit/s, 2
+ MBit/s, 5.5 MBit/s and 11 MBit/s get's the high bit set.
+ Note that the values are MBit/s * 2, to mark them as
+ basic rates so that the firmware likes it better */
+ if (*tlv == 0x02 || *tlv == 0x04 ||
+ *tlv == 0x0b || *tlv == 0x16)
+ *tlv |= 0x80;
+ tlv++;
}
-
-out:
- lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
- return ret;
+ rate_tlv->header.len = cpu_to_le16(i);
+ return sizeof(rate_tlv->header) + i;
}
/*
- * Only used from lbs_scan_networks()
-*/
-static void clear_selected_scan_list_entries(struct lbs_adapter *adapter,
- const struct lbs_ioctl_user_scan_cfg *scan_cfg)
+ * Generate the CMD_802_11_SCAN command with the proper tlv
+ * for a bunch of channels.
+ */
+static int lbs_do_scan(struct lbs_private *priv, uint8_t bsstype,
+ struct chanscanparamset *chan_list, int chan_count)
{
- struct bss_descriptor *bss;
- struct bss_descriptor *safe;
- u32 clear_ssid_flag = 0, clear_bssid_flag = 0;
+ int ret = -ENOMEM;
+ struct cmd_ds_802_11_scan *scan_cmd;
+ uint8_t *tlv; /* pointer into our current, growing TLV storage area */
- lbs_deb_enter(LBS_DEB_SCAN);
+ lbs_deb_enter_args(LBS_DEB_SCAN, "bsstype %d, chanlist[].chan %d, chan_count %d",
+ bsstype, chan_list ? chan_list[0].channumber : -1,
+ chan_count);
- if (!scan_cfg)
+ /* create the fixed part for scan command */
+ scan_cmd = kzalloc(MAX_SCAN_CFG_ALLOC, GFP_KERNEL);
+ if (scan_cmd == NULL)
goto out;
- if (scan_cfg->clear_ssid && scan_cfg->ssid_len)
- clear_ssid_flag = 1;
+ tlv = scan_cmd->tlvbuffer;
+ /* TODO: do we need to scan for a specific BSSID?
+ memcpy(scan_cmd->bssid, priv->scan_bssid, ETH_ALEN); */
+ scan_cmd->bsstype = bsstype;
+
+ /* add TLVs */
+ if (priv->scan_ssid_len)
+ tlv += lbs_scan_add_ssid_tlv(priv, tlv);
+ if (chan_list && chan_count)
+ tlv += lbs_scan_add_chanlist_tlv(tlv, chan_list, chan_count);
+ tlv += lbs_scan_add_rates_tlv(tlv);
+
+ /* This is the final data we are about to send */
+ scan_cmd->hdr.size = cpu_to_le16(tlv - (uint8_t *)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);
+
+ ret = __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,
+ le16_to_cpu(scan_cmd->hdr.size),
+ lbs_ret_80211_scan, 0);
- if (scan_cfg->clear_bssid
- && (compare_ether_addr(scan_cfg->bssid, &zeromac[0]) != 0)
- && (compare_ether_addr(scan_cfg->bssid, &bcastmac[0]) != 0)) {
- clear_bssid_flag = 1;
- }
-
- if (!clear_ssid_flag && !clear_bssid_flag)
- goto out;
-
- mutex_lock(&adapter->lock);
- list_for_each_entry_safe (bss, safe, &adapter->network_list, list) {
- u32 clear = 0;
-
- /* Check for an SSID match */
- if ( clear_ssid_flag
- && (bss->ssid_len == scan_cfg->ssid_len)
- && !memcmp(bss->ssid, scan_cfg->ssid, bss->ssid_len))
- clear = 1;
-
- /* Check for a BSSID match */
- if ( clear_bssid_flag
- && !compare_ether_addr(bss->bssid, scan_cfg->bssid))
- clear = 1;
-
- if (clear) {
- list_move_tail (&bss->list, &adapter->network_free_list);
- clear_bss_descriptor(bss);
- }
- }
- mutex_unlock(&adapter->lock);
out:
- lbs_deb_leave(LBS_DEB_SCAN);
+ kfree(scan_cmd);
+ lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
+ return ret;
}
-
/**
* @brief Internal function used to start a scan based on an input config
*
- * Also used from debugfs
- *
* Use the input user scan configuration information when provided in
* order to send the appropriate scan commands to firmware to populate or
* update the internal driver scan table
*
* @param priv A pointer to struct lbs_private structure
- * @param puserscanin Pointer to the input configuration for the requested
- * scan.
- * @param full_scan ???
+ * @param full_scan Do a full-scan (blocking)
*
* @return 0 or < 0 if error
*/
-int lbs_scan_networks(struct lbs_private *priv,
- const struct lbs_ioctl_user_scan_cfg *puserscanin,
- int full_scan)
+int lbs_scan_networks(struct lbs_private *priv, int full_scan)
{
- struct lbs_adapter *adapter = priv->adapter;
- struct mrvlietypes_chanlistparamset *pchantlvout;
- struct chanscanparamset * scan_chan_list = NULL;
- struct lbs_scan_cmd_config *scan_cfg = NULL;
- u8 filteredscan;
- u8 scancurrentchanonly;
- int maxchanperscan;
- int ret;
+ int ret = -ENOMEM;
+ struct chanscanparamset *chan_list;
+ struct chanscanparamset *curr_chans;
+ int chan_count;
+ uint8_t bsstype = CMD_BSS_TYPE_ANY;
+ int numchannels = MRVDRV_CHANNELS_PER_SCAN_CMD;
+ union iwreq_data wrqu;
#ifdef CONFIG_LIBERTAS_DEBUG
- struct bss_descriptor * iter_bss;
+ struct bss_descriptor *iter;
int i = 0;
- DECLARE_MAC_BUF(mac);
+ DECLARE_SSID_BUF(ssid);
#endif
lbs_deb_enter_args(LBS_DEB_SCAN, "full_scan %d", full_scan);
if (full_scan && delayed_work_pending(&priv->scan_work))
cancel_delayed_work(&priv->scan_work);
- scan_chan_list = kzalloc(sizeof(struct chanscanparamset) *
- LBS_IOCTL_USER_SCAN_CHAN_MAX, GFP_KERNEL);
- if (scan_chan_list == NULL) {
- ret = -ENOMEM;
+ /* User-specified bsstype or channel list
+ TODO: this can be implemented if some user-space application
+ need the feature. Formerly, it was accessible from debugfs,
+ but then nowhere used.
+ if (user_cfg) {
+ if (user_cfg->bsstype)
+ bsstype = user_cfg->bsstype;
+ } */
+
+ lbs_deb_scan("numchannels %d, bsstype %d\n", numchannels, bsstype);
+
+ /* Create list of channels to scan */
+ chan_list = kzalloc(sizeof(struct chanscanparamset) *
+ LBS_IOCTL_USER_SCAN_CHAN_MAX, GFP_KERNEL);
+ if (!chan_list) {
+ lbs_pr_alert("SCAN: chan_list empty\n");
goto out;
}
- scan_cfg = lbs_scan_setup_scan_config(priv,
- puserscanin,
- &pchantlvout,
- scan_chan_list,
- &maxchanperscan,
- &filteredscan,
- &scancurrentchanonly);
- if (scan_cfg == NULL) {
- ret = -ENOMEM;
- goto out;
+ /* We want to scan all channels */
+ chan_count = lbs_scan_create_channel_list(priv, chan_list);
+
+ netif_stop_queue(priv->dev);
+ netif_carrier_off(priv->dev);
+ if (priv->mesh_dev) {
+ netif_stop_queue(priv->mesh_dev);
+ netif_carrier_off(priv->mesh_dev);
}
- clear_selected_scan_list_entries(adapter, puserscanin);
+ /* Prepare to continue an interrupted scan */
+ lbs_deb_scan("chan_count %d, scan_channel %d\n",
+ chan_count, priv->scan_channel);
+ curr_chans = chan_list;
+ /* advance channel list by already-scanned-channels */
+ if (priv->scan_channel > 0) {
+ curr_chans += priv->scan_channel;
+ chan_count -= priv->scan_channel;
+ }
+
+ /* Send scan command(s)
+ * numchannels contains the number of channels we should maximally scan
+ * chan_count is the total number of channels to scan
+ */
- /* Keep the data path active if we are only scanning our current channel */
- if (!scancurrentchanonly) {
- netif_stop_queue(priv->dev);
- netif_carrier_off(priv->dev);
- if (priv->mesh_dev) {
- netif_stop_queue(priv->mesh_dev);
- netif_carrier_off(priv->mesh_dev);
+ while (chan_count) {
+ int to_scan = min(numchannels, chan_count);
+ lbs_deb_scan("scanning %d of %d channels\n",
+ to_scan, chan_count);
+ ret = lbs_do_scan(priv, bsstype, curr_chans,
+ to_scan);
+ if (ret) {
+ lbs_pr_err("SCAN_CMD failed\n");
+ goto out2;
+ }
+ curr_chans += to_scan;
+ chan_count -= to_scan;
+
+ /* somehow schedule the next part of the scan */
+ if (chan_count && !full_scan &&
+ !priv->surpriseremoved) {
+ /* -1 marks just that we're currently scanning */
+ if (priv->scan_channel < 0)
+ priv->scan_channel = to_scan;
+ else
+ priv->scan_channel += to_scan;
+ cancel_delayed_work(&priv->scan_work);
+ queue_delayed_work(priv->work_thread, &priv->scan_work,
+ msecs_to_jiffies(300));
+ /* skip over GIWSCAN event */
+ goto out;
}
- }
- ret = lbs_scan_channel_list(priv,
- maxchanperscan,
- filteredscan,
- scan_cfg,
- pchantlvout,
- scan_chan_list,
- puserscanin,
- full_scan);
+ }
+ memset(&wrqu, 0, sizeof(union iwreq_data));
+ wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
#ifdef CONFIG_LIBERTAS_DEBUG
/* Dump the scan table */
- mutex_lock(&adapter->lock);
- lbs_deb_scan("The scan table contains:\n");
- list_for_each_entry (iter_bss, &adapter->network_list, list) {
- lbs_deb_scan("scan %02d, %s, RSSI, %d, SSID '%s'\n",
- i++, print_mac(mac, iter_bss->bssid), (s32) iter_bss->rssi,
- escape_essid(iter_bss->ssid, iter_bss->ssid_len));
- }
- mutex_unlock(&adapter->lock);
+ mutex_lock(&priv->lock);
+ lbs_deb_scan("scan table:\n");
+ list_for_each_entry(iter, &priv->network_list, list)
+ lbs_deb_scan("%02d: BSSID %pM, RSSI %d, SSID '%s'\n",
+ i++, iter->bssid, iter->rssi,
+ print_ssid(ssid, iter->ssid, iter->ssid_len));
+ mutex_unlock(&priv->lock);
#endif
- if (adapter->connect_status == LBS_CONNECTED) {
+out2:
+ priv->scan_channel = 0;
+
+out:
+ if (priv->connect_status == LBS_CONNECTED) {
netif_carrier_on(priv->dev);
- netif_wake_queue(priv->dev);
+ if (!priv->tx_pending_len)
+ netif_wake_queue(priv->dev);
}
-
- if (priv->mesh_dev && (adapter->mesh_connect_status == LBS_CONNECTED)) {
+ if (priv->mesh_dev && (priv->mesh_connect_status == LBS_CONNECTED)) {
netif_carrier_on(priv->mesh_dev);
- netif_wake_queue(priv->mesh_dev);
+ if (!priv->tx_pending_len)
+ netif_wake_queue(priv->mesh_dev);
}
-
-out:
- if (scan_cfg)
- kfree(scan_cfg);
-
- if (scan_chan_list)
- kfree(scan_chan_list);
+ kfree(chan_list);
lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
return ret;
}
+void lbs_scan_worker(struct work_struct *work)
+{
+ struct lbs_private *priv =
+ container_of(work, struct lbs_private, scan_work.work);
+
+ lbs_deb_enter(LBS_DEB_SCAN);
+ lbs_scan_networks(priv, 0);
+ lbs_deb_leave(LBS_DEB_SCAN);
+}
+
+
+/*********************************************************************/
+/* */
+/* Result interpretation */
+/* */
+/*********************************************************************/
+
/**
* @brief Interpret a BSS scan response returned from the firmware
*
* Parse the various fixed fields and IEs passed back for a a BSS probe
- * response or beacon from the scan command. Record information as needed
- * in the scan table struct bss_descriptor for that entry.
+ * response or beacon from the scan command. Record information as needed
+ * in the scan table struct bss_descriptor for that entry.
*
* @param bss Output parameter: Pointer to the BSS Entry
*
* @return 0 or -1
*/
static int lbs_process_bss(struct bss_descriptor *bss,
- u8 ** pbeaconinfo, int *bytesleft)
+ uint8_t **pbeaconinfo, int *bytesleft)
{
- struct ieeetypes_fhparamset *pFH;
- struct ieeetypes_dsparamset *pDS;
- struct ieeetypes_cfparamset *pCF;
- struct ieeetypes_ibssparamset *pibss;
- DECLARE_MAC_BUF(mac);
- struct ieeetypes_countryinfoset *pcountryinfo;
- u8 *pos, *end, *p;
- u8 n_ex_rates = 0, got_basic_rates = 0, n_basic_rates = 0;
- u16 beaconsize = 0;
+ struct ieee_ie_fh_param_set *fh;
+ struct ieee_ie_ds_param_set *ds;
+ struct ieee_ie_cf_param_set *cf;
+ struct ieee_ie_ibss_param_set *ibss;
+ DECLARE_SSID_BUF(ssid);
+ uint8_t *pos, *end, *p;
+ uint8_t n_ex_rates = 0, got_basic_rates = 0, n_basic_rates = 0;
+ uint16_t beaconsize = 0;
int ret;
lbs_deb_enter(LBS_DEB_SCAN);
if (*bytesleft >= sizeof(beaconsize)) {
/* Extract & convert beacon size from the command buffer */
- beaconsize = le16_to_cpu(get_unaligned((u16 *)*pbeaconinfo));
+ beaconsize = get_unaligned_le16(*pbeaconinfo);
*bytesleft -= sizeof(beaconsize);
*pbeaconinfo += sizeof(beaconsize);
}
*bytesleft -= beaconsize;
memcpy(bss->bssid, pos, ETH_ALEN);
- lbs_deb_scan("process_bss: AP BSSID %s\n", print_mac(mac, bss->bssid));
+ lbs_deb_scan("process_bss: BSSID %pM\n", bss->bssid);
pos += ETH_ALEN;
if ((end - pos) < 12) {
/* RSSI is 1 byte long */
bss->rssi = *pos;
- lbs_deb_scan("process_bss: RSSI=%02X\n", *pos);
+ lbs_deb_scan("process_bss: RSSI %d\n", *pos);
pos++;
/* time stamp is 8 bytes long */
pos += 8;
/* beacon interval is 2 bytes long */
- bss->beaconperiod = le16_to_cpup((void *) pos);
+ bss->beaconperiod = get_unaligned_le16(pos);
pos += 2;
/* capability information is 2 bytes long */
- bss->capability = le16_to_cpup((void *) pos);
- lbs_deb_scan("process_bss: capabilities = 0x%4X\n", bss->capability);
+ bss->capability = get_unaligned_le16(pos);
+ lbs_deb_scan("process_bss: capabilities 0x%04x\n", bss->capability);
pos += 2;
if (bss->capability & WLAN_CAPABILITY_PRIVACY)
- lbs_deb_scan("process_bss: AP WEP enabled\n");
+ lbs_deb_scan("process_bss: WEP enabled\n");
if (bss->capability & WLAN_CAPABILITY_IBSS)
bss->mode = IW_MODE_ADHOC;
else
bss->mode = IW_MODE_INFRA;
/* rest of the current buffer are IE's */
- lbs_deb_scan("process_bss: IE length for this AP = %zd\n", end - pos);
+ lbs_deb_scan("process_bss: IE len %zd\n", end - pos);
lbs_deb_hex(LBS_DEB_SCAN, "process_bss: IE info", pos, end - pos);
/* process variable IE */
while (pos <= end - 2) {
- struct ieee80211_info_element * elem =
- (struct ieee80211_info_element *) pos;
-
- if (pos + elem->len > end) {
+ if (pos + pos[1] > end) {
lbs_deb_scan("process_bss: error in processing IE, "
- "bytes left < IE length\n");
+ "bytes left < IE length\n");
break;
}
- switch (elem->id) {
- case MFIE_TYPE_SSID:
- bss->ssid_len = elem->len;
- memcpy(bss->ssid, elem->data, elem->len);
- lbs_deb_scan("ssid '%s', ssid length %u\n",
- escape_essid(bss->ssid, bss->ssid_len),
+ switch (pos[0]) {
+ case WLAN_EID_SSID:
+ bss->ssid_len = min_t(int, IEEE80211_MAX_SSID_LEN, pos[1]);
+ memcpy(bss->ssid, pos + 2, bss->ssid_len);
+ lbs_deb_scan("got SSID IE: '%s', len %u\n",
+ print_ssid(ssid, bss->ssid, bss->ssid_len),
bss->ssid_len);
break;
- case MFIE_TYPE_RATES:
- n_basic_rates = min_t(u8, MAX_RATES, elem->len);
- memcpy(bss->rates, elem->data, n_basic_rates);
+ case WLAN_EID_SUPP_RATES:
+ n_basic_rates = min_t(uint8_t, MAX_RATES, pos[1]);
+ memcpy(bss->rates, pos + 2, n_basic_rates);
got_basic_rates = 1;
+ lbs_deb_scan("got RATES IE\n");
break;
- case MFIE_TYPE_FH_SET:
- pFH = (struct ieeetypes_fhparamset *) pos;
- memmove(&bss->phyparamset.fhparamset, pFH,
- sizeof(struct ieeetypes_fhparamset));
-#if 0 /* I think we can store these LE */
- bss->phyparamset.fhparamset.dwelltime
- = le16_to_cpu(bss->phyparamset.fhparamset.dwelltime);
-#endif
- break;
-
- case MFIE_TYPE_DS_SET:
- pDS = (struct ieeetypes_dsparamset *) pos;
- bss->channel = pDS->currentchan;
- memcpy(&bss->phyparamset.dsparamset, pDS,
- sizeof(struct ieeetypes_dsparamset));
+ case WLAN_EID_FH_PARAMS:
+ fh = (struct ieee_ie_fh_param_set *) pos;
+ memcpy(&bss->phy.fh, fh, sizeof(*fh));
+ lbs_deb_scan("got FH IE\n");
break;
- case MFIE_TYPE_CF_SET:
- pCF = (struct ieeetypes_cfparamset *) pos;
- memcpy(&bss->ssparamset.cfparamset, pCF,
- sizeof(struct ieeetypes_cfparamset));
+ case WLAN_EID_DS_PARAMS:
+ ds = (struct ieee_ie_ds_param_set *) pos;
+ bss->channel = ds->channel;
+ memcpy(&bss->phy.ds, ds, sizeof(*ds));
+ lbs_deb_scan("got DS IE, channel %d\n", bss->channel);
break;
- case MFIE_TYPE_IBSS_SET:
- pibss = (struct ieeetypes_ibssparamset *) pos;
- bss->atimwindow = le32_to_cpu(pibss->atimwindow);
- memmove(&bss->ssparamset.ibssparamset, pibss,
- sizeof(struct ieeetypes_ibssparamset));
-#if 0
- bss->ssparamset.ibssparamset.atimwindow
- = le16_to_cpu(bss->ssparamset.ibssparamset.atimwindow);
-#endif
+ case WLAN_EID_CF_PARAMS:
+ cf = (struct ieee_ie_cf_param_set *) pos;
+ memcpy(&bss->ss.cf, cf, sizeof(*cf));
+ lbs_deb_scan("got CF IE\n");
break;
- case MFIE_TYPE_COUNTRY:
- pcountryinfo = (struct ieeetypes_countryinfoset *) pos;
- if (pcountryinfo->len < sizeof(pcountryinfo->countrycode)
- || pcountryinfo->len > 254) {
- lbs_deb_scan("process_bss: 11D- Err "
- "CountryInfo len =%d min=%zd max=254\n",
- pcountryinfo->len,
- sizeof(pcountryinfo->countrycode));
- ret = -1;
- goto done;
- }
-
- memcpy(&bss->countryinfo,
- pcountryinfo, pcountryinfo->len + 2);
- lbs_deb_hex(LBS_DEB_SCAN, "process_bss: 11d countryinfo",
- (u8 *) pcountryinfo,
- (u32) (pcountryinfo->len + 2));
+ case WLAN_EID_IBSS_PARAMS:
+ ibss = (struct ieee_ie_ibss_param_set *) pos;
+ bss->atimwindow = ibss->atimwindow;
+ memcpy(&bss->ss.ibss, ibss, sizeof(*ibss));
+ lbs_deb_scan("got IBSS IE\n");
break;
- case MFIE_TYPE_RATES_EX:
+ case WLAN_EID_EXT_SUPP_RATES:
/* only process extended supported rate if data rate is
* already found. Data rate IE should come before
* extended supported rate IE
*/
- if (!got_basic_rates)
+ lbs_deb_scan("got RATESEX IE\n");
+ if (!got_basic_rates) {
+ lbs_deb_scan("... but ignoring it\n");
break;
+ }
- n_ex_rates = elem->len;
+ n_ex_rates = pos[1];
if (n_basic_rates + n_ex_rates > MAX_RATES)
n_ex_rates = MAX_RATES - n_basic_rates;
p = bss->rates + n_basic_rates;
- memcpy(p, elem->data, n_ex_rates);
+ memcpy(p, pos + 2, n_ex_rates);
break;
- case MFIE_TYPE_GENERIC:
- if (elem->len >= 4 &&
- elem->data[0] == 0x00 &&
- elem->data[1] == 0x50 &&
- elem->data[2] == 0xf2 &&
- elem->data[3] == 0x01) {
- bss->wpa_ie_len = min(elem->len + 2,
- MAX_WPA_IE_LEN);
- memcpy(bss->wpa_ie, elem, bss->wpa_ie_len);
- lbs_deb_hex(LBS_DEB_SCAN, "process_bss: WPA IE", bss->wpa_ie,
- elem->len);
- } else if (elem->len >= MARVELL_MESH_IE_LENGTH &&
- elem->data[0] == 0x00 &&
- elem->data[1] == 0x50 &&
- elem->data[2] == 0x43 &&
- elem->data[3] == 0x04) {
+ case WLAN_EID_GENERIC:
+ if (pos[1] >= 4 &&
+ pos[2] == 0x00 && pos[3] == 0x50 &&
+ pos[4] == 0xf2 && pos[5] == 0x01) {
+ bss->wpa_ie_len = min(pos[1] + 2, MAX_WPA_IE_LEN);
+ memcpy(bss->wpa_ie, pos, bss->wpa_ie_len);
+ lbs_deb_scan("got WPA IE\n");
+ lbs_deb_hex(LBS_DEB_SCAN, "WPA IE", bss->wpa_ie,
+ bss->wpa_ie_len);
+ } else if (pos[1] >= MARVELL_MESH_IE_LENGTH &&
+ pos[2] == 0x00 && pos[3] == 0x50 &&
+ pos[4] == 0x43 && pos[5] == 0x04) {
+ lbs_deb_scan("got mesh IE\n");
bss->mesh = 1;
+ } else {
+ lbs_deb_scan("got generic IE: %02x:%02x:%02x:%02x, len %d\n",
+ pos[2], pos[3],
+ pos[4], pos[5],
+ pos[1]);
}
break;
- case MFIE_TYPE_RSN:
- bss->rsn_ie_len = min(elem->len + 2, MAX_WPA_IE_LEN);
- memcpy(bss->rsn_ie, elem, bss->rsn_ie_len);
- lbs_deb_hex(LBS_DEB_SCAN, "process_bss: RSN_IE", bss->rsn_ie, elem->len);
+ case WLAN_EID_RSN:
+ lbs_deb_scan("got RSN IE\n");
+ bss->rsn_ie_len = min(pos[1] + 2, MAX_WPA_IE_LEN);
+ memcpy(bss->rsn_ie, pos, bss->rsn_ie_len);
+ lbs_deb_hex(LBS_DEB_SCAN, "process_bss: RSN_IE",
+ bss->rsn_ie, bss->rsn_ie_len);
break;
default:
+ lbs_deb_scan("got IE 0x%04x, len %d\n",
+ pos[0], pos[1]);
break;
}
- pos += elem->len + 2;
+ pos += pos[1] + 2;
}
/* Timestamp */
}
/**
- * @brief This function finds a specific compatible BSSID in the scan list
- *
- * Used in association code
- *
- * @param adapter A pointer to struct lbs_adapter
- * @param bssid BSSID to find in the scan list
- * @param mode Network mode: Infrastructure or IBSS
- *
- * @return index in BSSID list, or error return code (< 0)
- */
-struct bss_descriptor *lbs_find_bssid_in_list(struct lbs_adapter *adapter,
- u8 * bssid, u8 mode)
-{
- struct bss_descriptor * iter_bss;
- struct bss_descriptor * found_bss = NULL;
-
- lbs_deb_enter(LBS_DEB_SCAN);
-
- if (!bssid)
- goto out;
-
- lbs_deb_hex(LBS_DEB_SCAN, "looking for",
- bssid, ETH_ALEN);
-
- /* Look through the scan table for a compatible match. The loop will
- * continue past a matched bssid that is not compatible in case there
- * is an AP with multiple SSIDs assigned to the same BSSID
- */
- mutex_lock(&adapter->lock);
- list_for_each_entry (iter_bss, &adapter->network_list, list) {
- if (compare_ether_addr(iter_bss->bssid, bssid))
- continue; /* bssid doesn't match */
- switch (mode) {
- case IW_MODE_INFRA:
- case IW_MODE_ADHOC:
- if (!is_network_compatible(adapter, iter_bss, mode))
- break;
- found_bss = iter_bss;
- break;
- default:
- found_bss = iter_bss;
- break;
- }
- }
- mutex_unlock(&adapter->lock);
-
-out:
- lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss);
- return found_bss;
-}
-
-/**
- * @brief This function finds ssid in ssid list.
- *
- * Used in association code
- *
- * @param adapter A pointer to struct lbs_adapter
- * @param ssid SSID to find in the list
- * @param bssid BSSID to qualify the SSID selection (if provided)
- * @param mode Network mode: Infrastructure or IBSS
- *
- * @return index in BSSID list
- */
-struct bss_descriptor *lbs_find_ssid_in_list(struct lbs_adapter *adapter,
- u8 *ssid, u8 ssid_len, u8 * bssid, u8 mode,
- int channel)
-{
- u8 bestrssi = 0;
- struct bss_descriptor * iter_bss = NULL;
- struct bss_descriptor * found_bss = NULL;
- struct bss_descriptor * tmp_oldest = NULL;
-
- lbs_deb_enter(LBS_DEB_SCAN);
-
- mutex_lock(&adapter->lock);
-
- list_for_each_entry (iter_bss, &adapter->network_list, list) {
- if ( !tmp_oldest
- || (iter_bss->last_scanned < tmp_oldest->last_scanned))
- tmp_oldest = iter_bss;
-
- if (lbs_ssid_cmp(iter_bss->ssid, iter_bss->ssid_len,
- ssid, ssid_len) != 0)
- continue; /* ssid doesn't match */
- if (bssid && compare_ether_addr(iter_bss->bssid, bssid) != 0)
- continue; /* bssid doesn't match */
- if ((channel > 0) && (iter_bss->channel != channel))
- continue; /* channel doesn't match */
-
- switch (mode) {
- case IW_MODE_INFRA:
- case IW_MODE_ADHOC:
- if (!is_network_compatible(adapter, iter_bss, mode))
- break;
-
- if (bssid) {
- /* Found requested BSSID */
- found_bss = iter_bss;
- goto out;
- }
-
- if (SCAN_RSSI(iter_bss->rssi) > bestrssi) {
- bestrssi = SCAN_RSSI(iter_bss->rssi);
- found_bss = iter_bss;
- }
- break;
- case IW_MODE_AUTO:
- default:
- if (SCAN_RSSI(iter_bss->rssi) > bestrssi) {
- bestrssi = SCAN_RSSI(iter_bss->rssi);
- found_bss = iter_bss;
- }
- break;
- }
- }
-
-out:
- mutex_unlock(&adapter->lock);
- lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss);
- return found_bss;
-}
-
-/**
- * @brief This function finds the best SSID in the Scan List
- *
- * Search the scan table for the best SSID that also matches the current
- * adapter network preference (infrastructure or adhoc)
- *
- * @param adapter A pointer to struct lbs_adapter
- *
- * @return index in BSSID list
- */
-static struct bss_descriptor *lbs_find_best_ssid_in_list(
- struct lbs_adapter *adapter,
- u8 mode)
-{
- u8 bestrssi = 0;
- struct bss_descriptor * iter_bss;
- struct bss_descriptor * best_bss = NULL;
-
- lbs_deb_enter(LBS_DEB_SCAN);
-
- mutex_lock(&adapter->lock);
-
- list_for_each_entry (iter_bss, &adapter->network_list, list) {
- switch (mode) {
- case IW_MODE_INFRA:
- case IW_MODE_ADHOC:
- if (!is_network_compatible(adapter, iter_bss, mode))
- break;
- if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
- break;
- bestrssi = SCAN_RSSI(iter_bss->rssi);
- best_bss = iter_bss;
- break;
- case IW_MODE_AUTO:
- default:
- if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
- break;
- bestrssi = SCAN_RSSI(iter_bss->rssi);
- best_bss = iter_bss;
- break;
- }
- }
-
- mutex_unlock(&adapter->lock);
- lbs_deb_leave_args(LBS_DEB_SCAN, "best_bss %p", best_bss);
- return best_bss;
-}
-
-/**
- * @brief Find the AP with specific ssid in the scan list
- *
- * Used from association worker.
- *
- * @param priv A pointer to struct lbs_private structure
- * @param pSSID A pointer to AP's ssid
- *
- * @return 0--success, otherwise--fail
- */
-int lbs_find_best_network_ssid(struct lbs_private *priv,
- u8 *out_ssid, u8 *out_ssid_len, u8 preferred_mode, u8 *out_mode)
-{
- struct lbs_adapter *adapter = priv->adapter;
- int ret = -1;
- struct bss_descriptor * found;
-
- lbs_deb_enter(LBS_DEB_SCAN);
-
- lbs_scan_networks(priv, NULL, 1);
- if (adapter->surpriseremoved)
- goto out;
-
- wait_event_interruptible(adapter->cmd_pending, !adapter->nr_cmd_pending);
-
- found = lbs_find_best_ssid_in_list(adapter, preferred_mode);
- if (found && (found->ssid_len > 0)) {
- memcpy(out_ssid, &found->ssid, IW_ESSID_MAX_SIZE);
- *out_ssid_len = found->ssid_len;
- *out_mode = found->mode;
- ret = 0;
- }
-
-out:
- lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
- return ret;
-}
-
-/**
- * @brief Scan Network
- *
- * @param dev A pointer to net_device structure
- * @param info A pointer to iw_request_info structure
- * @param vwrq A pointer to iw_param structure
- * @param extra A pointer to extra data buf
- *
- * @return 0 --success, otherwise fail
- */
-int lbs_set_scan(struct net_device *dev, struct iw_request_info *info,
- struct iw_param *vwrq, char *extra)
-{
- struct lbs_private *priv = dev->priv;
- struct lbs_adapter *adapter = priv->adapter;
-
- lbs_deb_enter(LBS_DEB_SCAN);
-
- if (!delayed_work_pending(&priv->scan_work)) {
- queue_delayed_work(priv->work_thread, &priv->scan_work,
- msecs_to_jiffies(50));
- }
-
- if (adapter->surpriseremoved)
- return -1;
-
- lbs_deb_leave(LBS_DEB_SCAN);
- return 0;
-}
-
-
-/**
* @brief Send a scan command for all available channels filtered on a spec
*
* Used in association code and from debugfs
* @param priv A pointer to struct lbs_private structure
* @param ssid A pointer to the SSID to scan for
* @param ssid_len Length of the SSID
- * @param clear_ssid Should existing scan results with this SSID
- * be cleared?
- * @param prequestedssid A pointer to AP's ssid
- * @param keeppreviousscan Flag used to save/clear scan table before scan
*
* @return 0-success, otherwise fail
*/
-int lbs_send_specific_ssid_scan(struct lbs_private *priv,
- u8 *ssid, u8 ssid_len, u8 clear_ssid)
+int lbs_send_specific_ssid_scan(struct lbs_private *priv, uint8_t *ssid,
+ uint8_t ssid_len)
{
- struct lbs_adapter *adapter = priv->adapter;
- struct lbs_ioctl_user_scan_cfg scancfg;
+ DECLARE_SSID_BUF(ssid_buf);
int ret = 0;
- lbs_deb_enter_args(LBS_DEB_SCAN, "SSID '%s', clear %d",
- escape_essid(ssid, ssid_len), clear_ssid);
+ lbs_deb_enter_args(LBS_DEB_SCAN, "SSID '%s'\n",
+ print_ssid(ssid_buf, ssid, ssid_len));
if (!ssid_len)
goto out;
- memset(&scancfg, 0x00, sizeof(scancfg));
- memcpy(scancfg.ssid, ssid, ssid_len);
- scancfg.ssid_len = ssid_len;
- scancfg.clear_ssid = clear_ssid;
+ memcpy(priv->scan_ssid, ssid, ssid_len);
+ priv->scan_ssid_len = ssid_len;
- lbs_scan_networks(priv, &scancfg, 1);
- if (adapter->surpriseremoved) {
+ lbs_scan_networks(priv, 1);
+ if (priv->surpriseremoved) {
ret = -1;
goto out;
}
- wait_event_interruptible(adapter->cmd_pending, !adapter->nr_cmd_pending);
out:
lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
/* */
/*********************************************************************/
+
#define MAX_CUSTOM_LEN 64
static inline char *lbs_translate_scan(struct lbs_private *priv,
- char *start, char *stop,
- struct bss_descriptor *bss)
+ struct iw_request_info *info,
+ char *start, char *stop,
+ struct bss_descriptor *bss)
{
- struct lbs_adapter *adapter = priv->adapter;
struct chan_freq_power *cfp;
char *current_val; /* For rates */
struct iw_event iwe; /* Temporary buffer */
int j;
-#define PERFECT_RSSI ((u8)50)
-#define WORST_RSSI ((u8)0)
-#define RSSI_DIFF ((u8)(PERFECT_RSSI - WORST_RSSI))
- u8 rssi;
+#define PERFECT_RSSI ((uint8_t)50)
+#define WORST_RSSI ((uint8_t)0)
+#define RSSI_DIFF ((uint8_t)(PERFECT_RSSI - WORST_RSSI))
+ uint8_t rssi;
lbs_deb_enter(LBS_DEB_SCAN);
- cfp = lbs_find_cfp_by_band_and_channel(adapter, 0, bss->channel);
+ cfp = lbs_find_cfp_by_band_and_channel(priv, 0, bss->channel);
if (!cfp) {
lbs_deb_scan("Invalid channel number %d\n", bss->channel);
start = NULL;
goto out;
}
- /* First entry *MUST* be the AP BSSID */
+ /* First entry *MUST* be the BSSID */
iwe.cmd = SIOCGIWAP;
iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
memcpy(iwe.u.ap_addr.sa_data, &bss->bssid, ETH_ALEN);
- start = iwe_stream_add_event(start, stop, &iwe, IW_EV_ADDR_LEN);
+ start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_ADDR_LEN);
/* SSID */
iwe.cmd = SIOCGIWESSID;
iwe.u.data.flags = 1;
- iwe.u.data.length = min((u32) bss->ssid_len, (u32) IW_ESSID_MAX_SIZE);
- start = iwe_stream_add_point(start, stop, &iwe, bss->ssid);
+ iwe.u.data.length = min((uint32_t) bss->ssid_len, (uint32_t) IEEE80211_MAX_SSID_LEN);
+ start = iwe_stream_add_point(info, start, stop, &iwe, bss->ssid);
/* Mode */
iwe.cmd = SIOCGIWMODE;
iwe.u.mode = bss->mode;
- start = iwe_stream_add_event(start, stop, &iwe, IW_EV_UINT_LEN);
+ start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_UINT_LEN);
/* Frequency */
iwe.cmd = SIOCGIWFREQ;
iwe.u.freq.m = (long)cfp->freq * 100000;
iwe.u.freq.e = 1;
- start = iwe_stream_add_event(start, stop, &iwe, IW_EV_FREQ_LEN);
+ start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_FREQ_LEN);
/* Add quality statistics */
iwe.cmd = IWEVQUAL;
rssi = iwe.u.qual.level - MRVDRV_NF_DEFAULT_SCAN_VALUE;
iwe.u.qual.qual =
- (100 * RSSI_DIFF * RSSI_DIFF - (PERFECT_RSSI - rssi) *
- (15 * (RSSI_DIFF) + 62 * (PERFECT_RSSI - rssi))) /
- (RSSI_DIFF * RSSI_DIFF);
+ (100 * RSSI_DIFF * RSSI_DIFF - (PERFECT_RSSI - rssi) *
+ (15 * (RSSI_DIFF) + 62 * (PERFECT_RSSI - rssi))) /
+ (RSSI_DIFF * RSSI_DIFF);
if (iwe.u.qual.qual > 100)
iwe.u.qual.qual = 100;
- if (adapter->NF[TYPE_BEACON][TYPE_NOAVG] == 0) {
+ if (priv->NF[TYPE_BEACON][TYPE_NOAVG] == 0) {
iwe.u.qual.noise = MRVDRV_NF_DEFAULT_SCAN_VALUE;
} else {
- iwe.u.qual.noise =
- CAL_NF(adapter->NF[TYPE_BEACON][TYPE_NOAVG]);
+ iwe.u.qual.noise = CAL_NF(priv->NF[TYPE_BEACON][TYPE_NOAVG]);
}
/* Locally created ad-hoc BSSs won't have beacons if this is the
* only station in the adhoc network; so get signal strength
* from receive statistics.
*/
- if ((adapter->mode == IW_MODE_ADHOC)
- && adapter->adhoccreate
- && !lbs_ssid_cmp(adapter->curbssparams.ssid,
- adapter->curbssparams.ssid_len,
- bss->ssid, bss->ssid_len)) {
+ if ((priv->mode == IW_MODE_ADHOC) && priv->adhoccreate
+ && !lbs_ssid_cmp(priv->curbssparams.ssid,
+ priv->curbssparams.ssid_len,
+ bss->ssid, bss->ssid_len)) {
int snr, nf;
- snr = adapter->SNR[TYPE_RXPD][TYPE_AVG] / AVG_SCALE;
- nf = adapter->NF[TYPE_RXPD][TYPE_AVG] / AVG_SCALE;
+ snr = priv->SNR[TYPE_RXPD][TYPE_AVG] / AVG_SCALE;
+ nf = priv->NF[TYPE_RXPD][TYPE_AVG] / AVG_SCALE;
iwe.u.qual.level = CAL_RSSI(snr, nf);
}
- start = iwe_stream_add_event(start, stop, &iwe, IW_EV_QUAL_LEN);
+ start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_QUAL_LEN);
/* Add encryption capability */
iwe.cmd = SIOCGIWENCODE;
iwe.u.data.flags = IW_ENCODE_DISABLED;
}
iwe.u.data.length = 0;
- start = iwe_stream_add_point(start, stop, &iwe, bss->ssid);
+ start = iwe_stream_add_point(info, start, stop, &iwe, bss->ssid);
- current_val = start + IW_EV_LCP_LEN;
+ current_val = start + iwe_stream_lcp_len(info);
iwe.cmd = SIOCGIWRATE;
iwe.u.bitrate.fixed = 0;
iwe.u.bitrate.disabled = 0;
iwe.u.bitrate.value = 0;
- for (j = 0; bss->rates[j] && (j < sizeof(bss->rates)); j++) {
+ for (j = 0; j < ARRAY_SIZE(bss->rates) && bss->rates[j]; j++) {
/* Bit rate given in 500 kb/s units */
iwe.u.bitrate.value = bss->rates[j] * 500000;
- current_val = iwe_stream_add_value(start, current_val,
- stop, &iwe, IW_EV_PARAM_LEN);
+ current_val = iwe_stream_add_value(info, start, current_val,
+ stop, &iwe, IW_EV_PARAM_LEN);
}
- if ((bss->mode == IW_MODE_ADHOC)
- && !lbs_ssid_cmp(adapter->curbssparams.ssid,
- adapter->curbssparams.ssid_len,
- bss->ssid, bss->ssid_len)
- && adapter->adhoccreate) {
+ if ((bss->mode == IW_MODE_ADHOC) && priv->adhoccreate
+ && !lbs_ssid_cmp(priv->curbssparams.ssid,
+ priv->curbssparams.ssid_len,
+ bss->ssid, bss->ssid_len)) {
iwe.u.bitrate.value = 22 * 500000;
- current_val = iwe_stream_add_value(start, current_val,
- stop, &iwe, IW_EV_PARAM_LEN);
+ current_val = iwe_stream_add_value(info, start, current_val,
+ stop, &iwe, IW_EV_PARAM_LEN);
}
/* Check if we added any event */
- if((current_val - start) > IW_EV_LCP_LEN)
+ if ((current_val - start) > iwe_stream_lcp_len(info))
start = current_val;
memset(&iwe, 0, sizeof(iwe));
memcpy(buf, bss->wpa_ie, bss->wpa_ie_len);
iwe.cmd = IWEVGENIE;
iwe.u.data.length = bss->wpa_ie_len;
- start = iwe_stream_add_point(start, stop, &iwe, buf);
+ start = iwe_stream_add_point(info, start, stop, &iwe, buf);
}
memset(&iwe, 0, sizeof(iwe));
memcpy(buf, bss->rsn_ie, bss->rsn_ie_len);
iwe.cmd = IWEVGENIE;
iwe.u.data.length = bss->rsn_ie_len;
- start = iwe_stream_add_point(start, stop, &iwe, buf);
+ start = iwe_stream_add_point(info, start, stop, &iwe, buf);
}
if (bss->mesh) {
char *p = custom;
iwe.cmd = IWEVCUSTOM;
- p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
- "mesh-type: olpc");
+ p += snprintf(p, MAX_CUSTOM_LEN, "mesh-type: olpc");
iwe.u.data.length = p - custom;
if (iwe.u.data.length)
- start = iwe_stream_add_point(start, stop, &iwe, custom);
+ start = iwe_stream_add_point(info, start, stop,
+ &iwe, custom);
}
out:
return start;
}
+
+/**
+ * @brief Handle Scan Network ioctl
+ *
+ * @param dev A pointer to net_device structure
+ * @param info A pointer to iw_request_info structure
+ * @param vwrq A pointer to iw_param structure
+ * @param extra A pointer to extra data buf
+ *
+ * @return 0 --success, otherwise fail
+ */
+int lbs_set_scan(struct net_device *dev, struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ DECLARE_SSID_BUF(ssid);
+ struct lbs_private *priv = dev->ml_priv;
+ int ret = 0;
+
+ lbs_deb_enter(LBS_DEB_WEXT);
+
+ if (!priv->radio_on) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (!netif_running(dev)) {
+ ret = -ENETDOWN;
+ goto out;
+ }
+
+ /* mac80211 does this:
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type != IEEE80211_IF_TYPE_xxx) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+ */
+
+ if (wrqu->data.length == sizeof(struct iw_scan_req) &&
+ wrqu->data.flags & IW_SCAN_THIS_ESSID) {
+ struct iw_scan_req *req = (struct iw_scan_req *)extra;
+ priv->scan_ssid_len = req->essid_len;
+ memcpy(priv->scan_ssid, req->essid, priv->scan_ssid_len);
+ lbs_deb_wext("set_scan, essid '%s'\n",
+ print_ssid(ssid, priv->scan_ssid, priv->scan_ssid_len));
+ } else {
+ priv->scan_ssid_len = 0;
+ }
+
+ if (!delayed_work_pending(&priv->scan_work))
+ queue_delayed_work(priv->work_thread, &priv->scan_work,
+ msecs_to_jiffies(50));
+ /* set marker that currently a scan is taking place */
+ priv->scan_channel = -1;
+
+ if (priv->surpriseremoved)
+ ret = -EIO;
+
+out:
+ lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
+ return ret;
+}
+
+
/**
* @brief Handle Retrieve scan table ioctl
*
* @return 0 --success, otherwise fail
*/
int lbs_get_scan(struct net_device *dev, struct iw_request_info *info,
- struct iw_point *dwrq, char *extra)
+ struct iw_point *dwrq, char *extra)
{
#define SCAN_ITEM_SIZE 128
- struct lbs_private *priv = dev->priv;
- struct lbs_adapter *adapter = priv->adapter;
+ struct lbs_private *priv = dev->ml_priv;
int err = 0;
char *ev = extra;
char *stop = ev + dwrq->length;
- struct bss_descriptor * iter_bss;
- struct bss_descriptor * safe;
+ struct bss_descriptor *iter_bss;
+ struct bss_descriptor *safe;
- lbs_deb_enter(LBS_DEB_SCAN);
+ lbs_deb_enter(LBS_DEB_WEXT);
+
+ /* iwlist should wait until the current scan is finished */
+ if (priv->scan_channel)
+ return -EAGAIN;
/* Update RSSI if current BSS is a locally created ad-hoc BSS */
- if ((adapter->mode == IW_MODE_ADHOC) && adapter->adhoccreate) {
- lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
- CMD_OPTION_WAITFORRSP, 0, NULL);
+ if ((priv->mode == IW_MODE_ADHOC) && priv->adhoccreate) {
+ err = lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
+ CMD_OPTION_WAITFORRSP, 0, NULL);
+ if (err)
+ goto out;
}
- mutex_lock(&adapter->lock);
- list_for_each_entry_safe (iter_bss, safe, &adapter->network_list, list) {
- char * next_ev;
+ mutex_lock(&priv->lock);
+ list_for_each_entry_safe (iter_bss, safe, &priv->network_list, list) {
+ char *next_ev;
unsigned long stale_time;
if (stop - ev < SCAN_ITEM_SIZE) {
/* Prune old an old scan result */
stale_time = iter_bss->last_scanned + DEFAULT_MAX_SCAN_AGE;
if (time_after(jiffies, stale_time)) {
- list_move_tail (&iter_bss->list,
- &adapter->network_free_list);
+ list_move_tail(&iter_bss->list, &priv->network_free_list);
clear_bss_descriptor(iter_bss);
continue;
}
/* Translate to WE format this entry */
- next_ev = lbs_translate_scan(priv, ev, stop, iter_bss);
+ next_ev = lbs_translate_scan(priv, info, ev, stop, iter_bss);
if (next_ev == NULL)
continue;
ev = next_ev;
}
- mutex_unlock(&adapter->lock);
+ mutex_unlock(&priv->lock);
dwrq->length = (ev - extra);
dwrq->flags = 0;
-
- lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", err);
+out:
+ lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", err);
return err;
}
/**
- * @brief Prepare a scan command to be sent to the firmware
- *
- * Called from lbs_prepare_and_send_command() in cmd.c
- *
- * Sends a fixed lenght data part (specifying the BSS type and BSSID filters)
- * as well as a variable number/length of TLVs to the firmware.
- *
- * @param priv A pointer to struct lbs_private structure
- * @param cmd A pointer to cmd_ds_command structure to be sent to
- * firmware with the cmd_DS_801_11_SCAN structure
- * @param pdata_buf Void pointer cast of a lbs_scan_cmd_config struct used
- * to set the fields/TLVs for the command sent to firmware
- *
- * @return 0 or -1
- */
-int lbs_cmd_80211_scan(struct lbs_private *priv,
- struct cmd_ds_command *cmd, void *pdata_buf)
-{
- struct cmd_ds_802_11_scan *pscan = &cmd->params.scan;
- struct lbs_scan_cmd_config *pscancfg = pdata_buf;
-
- lbs_deb_enter(LBS_DEB_SCAN);
-
- /* Set fixed field variables in scan command */
- pscan->bsstype = pscancfg->bsstype;
- memcpy(pscan->bssid, pscancfg->bssid, ETH_ALEN);
- memcpy(pscan->tlvbuffer, pscancfg->tlvbuffer, pscancfg->tlvbufferlen);
-
- cmd->command = cpu_to_le16(CMD_802_11_SCAN);
-
- /* size is equal to the sizeof(fixed portions) + the TLV len + header */
- cmd->size = cpu_to_le16(sizeof(pscan->bsstype) + ETH_ALEN
- + pscancfg->tlvbufferlen + S_DS_GEN);
-
- lbs_deb_scan("SCAN_CMD: command 0x%04x, size %d, seqnum %d\n",
- le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
- le16_to_cpu(cmd->seqnum));
-
- lbs_deb_leave(LBS_DEB_SCAN);
- return 0;
-}
-
-static inline int is_same_network(struct bss_descriptor *src,
- struct bss_descriptor *dst)
-{
- /* A network is only a duplicate if the channel, BSSID, and ESSID
- * all match. We treat all <hidden> with the same BSSID and channel
- * as one network */
- return ((src->ssid_len == dst->ssid_len) &&
- (src->channel == dst->channel) &&
- !compare_ether_addr(src->bssid, dst->bssid) &&
- !memcmp(src->ssid, dst->ssid, src->ssid_len));
-}
-
-/**
* @brief This function handles the command response of scan
*
* Called from handle_cmd_response() in cmdrespc.
*
* @return 0 or -1
*/
-int lbs_ret_80211_scan(struct lbs_private *priv, struct cmd_ds_command *resp)
+static int lbs_ret_80211_scan(struct lbs_private *priv, unsigned long dummy,
+ struct cmd_header *resp)
{
- struct lbs_adapter *adapter = priv->adapter;
- struct cmd_ds_802_11_scan_rsp *pscan;
- struct bss_descriptor * iter_bss;
- struct bss_descriptor * safe;
- u8 *pbssinfo;
- u16 scanrespsize;
+ struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
+ struct bss_descriptor *iter_bss;
+ struct bss_descriptor *safe;
+ uint8_t *bssinfo;
+ uint16_t scanrespsize;
int bytesleft;
int idx;
int tlvbufsize;
lbs_deb_enter(LBS_DEB_SCAN);
/* Prune old entries from scan table */
- list_for_each_entry_safe (iter_bss, safe, &adapter->network_list, list) {
+ list_for_each_entry_safe (iter_bss, safe, &priv->network_list, list) {
unsigned long stale_time = iter_bss->last_scanned + DEFAULT_MAX_SCAN_AGE;
if (time_before(jiffies, stale_time))
continue;
- list_move_tail (&iter_bss->list, &adapter->network_free_list);
+ list_move_tail (&iter_bss->list, &priv->network_free_list);
clear_bss_descriptor(iter_bss);
}
- pscan = &resp->params.scanresp;
-
- if (pscan->nr_sets > MAX_NETWORK_COUNT) {
- lbs_deb_scan(
- "SCAN_RESP: too many scan results (%d, max %d)!!\n",
- pscan->nr_sets, MAX_NETWORK_COUNT);
+ if (scanresp->nr_sets > MAX_NETWORK_COUNT) {
+ lbs_deb_scan("SCAN_RESP: too many scan results (%d, max %d)\n",
+ scanresp->nr_sets, MAX_NETWORK_COUNT);
ret = -1;
goto done;
}
- bytesleft = le16_to_cpu(get_unaligned((u16*)&pscan->bssdescriptsize));
+ bytesleft = get_unaligned_le16(&scanresp->bssdescriptsize);
lbs_deb_scan("SCAN_RESP: bssdescriptsize %d\n", bytesleft);
- scanrespsize = le16_to_cpu(get_unaligned((u16*)&resp->size));
- lbs_deb_scan("SCAN_RESP: returned %d AP before parsing\n",
- pscan->nr_sets);
+ scanrespsize = le16_to_cpu(resp->size);
+ lbs_deb_scan("SCAN_RESP: scan results %d\n", scanresp->nr_sets);
- pbssinfo = pscan->bssdesc_and_tlvbuffer;
+ bssinfo = scanresp->bssdesc_and_tlvbuffer;
/* The size of the TLV buffer is equal to the entire command response
* size (scanrespsize) minus the fixed fields (sizeof()'s), the
* BSS Descriptions (bssdescriptsize as bytesLef) and the command
- * response header (S_DS_GEN)
+ * response header (sizeof(struct cmd_header))
*/
- tlvbufsize = scanrespsize - (bytesleft + sizeof(pscan->bssdescriptsize)
- + sizeof(pscan->nr_sets)
- + S_DS_GEN);
+ tlvbufsize = scanrespsize - (bytesleft + sizeof(scanresp->bssdescriptsize)
+ + sizeof(scanresp->nr_sets)
+ + sizeof(struct cmd_header));
/*
- * Process each scan response returned (pscan->nr_sets). Save
+ * Process each scan response returned (scanresp->nr_sets). Save
* the information in the newbssentry and then insert into the
* driver scan table either as an update to an existing entry
* or as an addition at the end of the table
*/
- for (idx = 0; idx < pscan->nr_sets && bytesleft; idx++) {
+ for (idx = 0; idx < scanresp->nr_sets && bytesleft; idx++) {
struct bss_descriptor new;
- struct bss_descriptor * found = NULL;
- struct bss_descriptor * oldest = NULL;
- DECLARE_MAC_BUF(mac);
+ struct bss_descriptor *found = NULL;
+ struct bss_descriptor *oldest = NULL;
/* Process the data fields and IEs returned for this BSS */
memset(&new, 0, sizeof (struct bss_descriptor));
- if (lbs_process_bss(&new, &pbssinfo, &bytesleft) != 0) {
+ if (lbs_process_bss(&new, &bssinfo, &bytesleft) != 0) {
/* error parsing the scan response, skipped */
lbs_deb_scan("SCAN_RESP: process_bss returned ERROR\n");
continue;
}
/* Try to find this bss in the scan table */
- list_for_each_entry (iter_bss, &adapter->network_list, list) {
+ list_for_each_entry (iter_bss, &priv->network_list, list) {
if (is_same_network(iter_bss, &new)) {
found = iter_bss;
break;
if (found) {
/* found, clear it */
clear_bss_descriptor(found);
- } else if (!list_empty(&adapter->network_free_list)) {
+ } else if (!list_empty(&priv->network_free_list)) {
/* Pull one from the free list */
- found = list_entry(adapter->network_free_list.next,
+ found = list_entry(priv->network_free_list.next,
struct bss_descriptor, list);
- list_move_tail(&found->list, &adapter->network_list);
+ list_move_tail(&found->list, &priv->network_list);
} else if (oldest) {
/* If there are no more slots, expire the oldest */
found = oldest;
clear_bss_descriptor(found);
- list_move_tail(&found->list, &adapter->network_list);
+ list_move_tail(&found->list, &priv->network_list);
} else {
continue;
}
- lbs_deb_scan("SCAN_RESP: BSSID = %s\n",
- print_mac(mac, new.bssid));
+ lbs_deb_scan("SCAN_RESP: BSSID %pM\n", new.bssid);
/* Copy the locally created newbssentry to the scan table */
memcpy(found, &new, offsetof(struct bss_descriptor, list));
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff