#include <linux/if.h>
#include <linux/netdevice.h>
#include <linux/wireless.h>
+#include <linux/etherdevice.h>
#include <net/ieee80211.h>
#include <net/iw_handler.h>
#include "decl.h"
#include "dev.h"
#include "scan.h"
+#include "join.h"
//! Approximate amount of data needed to pass a scan result back to iwlist
#define MAX_SCAN_CELL_SIZE (IW_EV_ADDR_LEN \
//! Scan time specified in the channel TLV for each channel for active scans
#define MRVDRV_ACTIVE_SCAN_CHAN_TIME 100
-//! Macro to enable/disable SSID checking before storing a scan table
-#ifdef DISCARD_BAD_SSID
-#define CHECK_SSID_IS_VALID(x) ssid_valid(&bssidEntry.ssid)
-#else
-#define CHECK_SSID_IS_VALID(x) 1
-#endif
+static const u8 zeromac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+static const u8 bcastmac[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+
+static inline void clear_bss_descriptor (struct bss_descriptor * bss)
+{
+ /* Don't blow away ->list, just BSS data */
+ memset(bss, 0, offsetof(struct bss_descriptor, list));
+}
+
+static inline int match_bss_no_security(struct wlan_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;
+}
+
+static inline int match_bss_static_wep(struct wlan_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 wlan_802_11_security * secinfo,
+ struct bss_descriptor * match_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;
+}
+
+static inline int match_bss_wpa2(struct wlan_802_11_security * secinfo,
+ struct bss_descriptor * match_bss)
+{
+ 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;
+}
+
+static inline int match_bss_dynamic_wep(struct wlan_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;
+}
/**
* @brief Check if a scanned network compatible with the driver settings
*
* @return Index in scantable, or error code if negative
*/
-static int is_network_compatible(wlan_adapter * adapter, int index, u8 mode)
+static int is_network_compatible(wlan_adapter * adapter,
+ struct bss_descriptor * bss, u8 mode)
{
- ENTER();
-
- if (adapter->scantable[index].mode == mode) {
- if ( !adapter->secinfo.wep_enabled
- && !adapter->secinfo.WPAenabled
- && !adapter->secinfo.WPA2enabled
- && adapter->scantable[index].wpa_ie[0] != WPA_IE
- && adapter->scantable[index].rsn_ie[0] != WPA2_IE
- && !adapter->scantable[index].privacy) {
- /* no security */
- LEAVE();
- return index;
- } else if ( adapter->secinfo.wep_enabled
- && !adapter->secinfo.WPAenabled
- && !adapter->secinfo.WPA2enabled
- && adapter->scantable[index].privacy) {
- /* static WEP enabled */
- LEAVE();
- return index;
- } else if ( !adapter->secinfo.wep_enabled
- && adapter->secinfo.WPAenabled
- && !adapter->secinfo.WPA2enabled
- && (adapter->scantable[index].wpa_ie[0] == WPA_IE)
- /* privacy bit may NOT be set in some APs like LinkSys WRT54G
- && adapter->scantable[index].privacy */
- ) {
- /* WPA enabled */
- lbs_pr_debug(1,
- "is_network_compatible() WPA: index=%d wpa_ie=%#x "
- "wpa2_ie=%#x WEP=%s WPA=%s WPA2=%s "
- "privacy=%#x\n", index,
- adapter->scantable[index].wpa_ie[0],
- adapter->scantable[index].rsn_ie[0],
- adapter->secinfo.wep_enabled ? "e" : "d",
- adapter->secinfo.WPAenabled ? "e" : "d",
- adapter->secinfo.WPA2enabled ? "e" : "d",
- adapter->scantable[index].privacy);
- LEAVE();
- return index;
- } else if ( !adapter->secinfo.wep_enabled
- && !adapter->secinfo.WPAenabled
- && adapter->secinfo.WPA2enabled
- && (adapter->scantable[index].rsn_ie[0] == WPA2_IE)
- /* privacy bit may NOT be set in some APs like LinkSys WRT54G
- && adapter->scantable[index].privacy */
- ) {
- /* WPA2 enabled */
- lbs_pr_debug(1,
- "is_network_compatible() WPA2: index=%d wpa_ie=%#x "
- "wpa2_ie=%#x WEP=%s WPA=%s WPA2=%s "
- "privacy=%#x\n", index,
- adapter->scantable[index].wpa_ie[0],
- adapter->scantable[index].rsn_ie[0],
- adapter->secinfo.wep_enabled ? "e" : "d",
- adapter->secinfo.WPAenabled ? "e" : "d",
- adapter->secinfo.WPA2enabled ? "e" : "d",
- adapter->scantable[index].privacy);
- LEAVE();
- return index;
- } else if ( !adapter->secinfo.wep_enabled
- && !adapter->secinfo.WPAenabled
- && !adapter->secinfo.WPA2enabled
- && (adapter->scantable[index].wpa_ie[0] != WPA_IE)
- && (adapter->scantable[index].rsn_ie[0] != WPA2_IE)
- && adapter->scantable[index].privacy) {
- /* dynamic WEP enabled */
- lbs_pr_debug(1,
- "is_network_compatible() dynamic WEP: index=%d "
- "wpa_ie=%#x wpa2_ie=%#x privacy=%#x\n",
- index,
- adapter->scantable[index].wpa_ie[0],
- adapter->scantable[index].rsn_ie[0],
- adapter->scantable[index].privacy);
- LEAVE();
- return index;
- }
-
- /* security doesn't match */
- lbs_pr_debug(1,
- "is_network_compatible() FAILED: index=%d wpa_ie=%#x "
- "wpa2_ie=%#x WEP=%s WPA=%s WPA2=%s privacy=%#x\n",
- index,
- adapter->scantable[index].wpa_ie[0],
- adapter->scantable[index].rsn_ie[0],
+ int matched = 0;
+
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ if (bss->mode != mode)
+ goto done;
+
+ 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",
- adapter->scantable[index].privacy);
- LEAVE();
- return -ECONNREFUSED;
- }
-
- /* mode doesn't match */
- LEAVE();
- return -ENETUNREACH;
-}
-
-/**
- * @brief This function validates a SSID as being able to be printed
- *
- * @param pssid SSID structure to validate
- *
- * @return TRUE or FALSE
- */
-static u8 ssid_valid(struct WLAN_802_11_SSID *pssid)
-{
- int ssididx;
-
- for (ssididx = 0; ssididx < pssid->ssidlength; ssididx++) {
- if (!isprint(pssid->ssid[ssididx])) {
- return 0;
- }
- }
-
- return 1;
-}
-
-/**
- * @brief Post process the scan table after a new scan command has completed
- *
- * Inspect each entry of the scan table and try to find an entry that
- * matches our current associated/joined network from the scan. If
- * one is found, update the stored copy of the bssdescriptor for our
- * current network.
- *
- * Debug dump the current scan table contents if compiled accordingly.
- *
- * @param priv A pointer to wlan_private structure
- *
- * @return void
- */
-static void wlan_scan_process_results(wlan_private * priv)
-{
- wlan_adapter *adapter = priv->adapter;
- int foundcurrent;
- int i;
-
- foundcurrent = 0;
-
- if (adapter->connect_status == libertas_connected) {
- /* try to find the current BSSID in the new scan list */
- for (i = 0; i < adapter->numinscantable; i++) {
- if (!libertas_SSID_cmp(&adapter->scantable[i].ssid,
- &adapter->curbssparams.ssid) &&
- !memcmp(adapter->curbssparams.bssid,
- adapter->scantable[i].macaddress,
- ETH_ALEN)) {
- foundcurrent = 1;
- }
- }
-
- if (foundcurrent) {
- /* Make a copy of current BSSID descriptor */
- memcpy(&adapter->curbssparams.bssdescriptor,
- &adapter->scantable[i],
- sizeof(adapter->curbssparams.bssdescriptor));
- }
+ (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 < adapter->numinscantable; i++) {
- lbs_pr_debug(1, "Scan:(%02d) %02x:%02x:%02x:%02x:%02x:%02x, "
- "RSSI[%03d], SSID[%s]\n",
- i,
- adapter->scantable[i].macaddress[0],
- adapter->scantable[i].macaddress[1],
- adapter->scantable[i].macaddress[2],
- adapter->scantable[i].macaddress[3],
- adapter->scantable[i].macaddress[4],
- adapter->scantable[i].macaddress[5],
- (s32) adapter->scantable[i].rssi,
- adapter->scantable[i].ssid.ssid);
- }
+ /* 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(LBS_DEB_SCAN);
+ return matched;
}
/**
* be changed to passive on a per channel basis if restricted by
* regulatory requirements (11d or 11h)
*/
- scantype = adapter->scantype;
+ scantype = CMD_SCAN_TYPE_ACTIVE;
for (rgnidx = 0; rgnidx < ARRAY_SIZE(adapter->region_channel); rgnidx++) {
if (priv->adapter->enable11d &&
- adapter->connect_status != libertas_connected) {
+ adapter->connect_status != LIBERTAS_CONNECTED) {
/* Scan all the supported chan for the first scan */
if (!adapter->universal_channel[rgnidx].valid)
continue;
case BAND_G:
default:
scanchanlist[chanidx].radiotype =
- cmd_scan_radio_type_bg;
+ CMD_SCAN_RADIO_TYPE_BG;
break;
}
- if (scantype == cmd_scan_type_passive) {
+ if (scantype == CMD_SCAN_TYPE_PASSIVE) {
scanchanlist[chanidx].maxscantime =
- cpu_to_le16
- (MRVDRV_PASSIVE_SCAN_CHAN_TIME);
+ cpu_to_le16(MRVDRV_PASSIVE_SCAN_CHAN_TIME);
scanchanlist[chanidx].chanscanmode.passivescan =
1;
} else {
scanchanlist[chanidx].maxscantime =
- cpu_to_le16
- (MRVDRV_ACTIVE_SCAN_CHAN_TIME);
+ cpu_to_le16(MRVDRV_ACTIVE_SCAN_CHAN_TIME);
scanchanlist[chanidx].chanscanmode.passivescan =
0;
}
}
}
+
+/* Delayed partial scan worker */
+void libertas_scan_worker(struct work_struct *work)
+{
+ wlan_private *priv = container_of(work, wlan_private, scan_work.work);
+
+ wlan_scan_networks(priv, NULL, 0);
+}
+
+
/**
* @brief Construct a wlan_scan_cmd_config structure to use in issue scan cmds
*
u8 * pfilteredscan,
u8 * pscancurrentonly)
{
- wlan_adapter *adapter = priv->adapter;
- const u8 zeromac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
struct mrvlietypes_numprobes *pnumprobestlv;
struct mrvlietypes_ssidparamset *pssidtlv;
struct wlan_scan_cmd_config * pscancfgout = NULL;
u8 *ptlvpos;
u16 numprobes;
- u16 ssidlen;
int chanidx;
int scantype;
int scandur;
*pscancurrentonly = 0;
if (puserscanin) {
-
/* Set the bss type scan filter, use adapter setting if unset */
pscancfgout->bsstype =
- (puserscanin->bsstype ? puserscanin->bsstype : adapter->
- scanmode);
+ 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 :
- adapter->scanprobes);
+ 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->specificBSSID,
- puserscanin->specificBSSID,
- sizeof(pscancfgout->specificBSSID));
-
- ssidlen = strlen(puserscanin->specificSSID);
+ memcpy(pscancfgout->bssid, puserscanin->bssid,
+ sizeof(pscancfgout->bssid));
- if (ssidlen) {
+ 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(ssidlen);
- memcpy(pssidtlv->ssid, puserscanin->specificSSID,
- ssidlen);
- ptlvpos += sizeof(pssidtlv->header) + ssidlen;
+ pssidtlv->header.len = cpu_to_le16(puserscanin->ssid_len);
+ memcpy(pssidtlv->ssid, puserscanin->ssid,
+ puserscanin->ssid_len);
+ ptlvpos += sizeof(pssidtlv->header) + puserscanin->ssid_len;
}
/*
* scan results. That is not an issue with an SSID or BSSID
* filter applied to the scan results in the firmware.
*/
- if (ssidlen || (memcmp(pscancfgout->specificBSSID,
- &zeromac, sizeof(zeromac)) != 0)) {
+ if ( puserscanin->ssid_len
+ || (compare_ether_addr(pscancfgout->bssid, &zeromac[0]) != 0)) {
*pmaxchanperscan = MRVDRV_MAX_CHANNELS_PER_SCAN;
*pfilteredscan = 1;
}
} else {
- pscancfgout->bsstype = adapter->scanmode;
- numprobes = adapter->scanprobes;
+ 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 = sizeof(pnumprobestlv->numprobes);
+ 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->header) + pnumprobestlv->header.len;
-
- pnumprobestlv->header.len =
- cpu_to_le16(pnumprobestlv->header.len);
+ ptlvpos += sizeof(*pnumprobestlv);
}
/*
*/
*ppchantlvout = (struct mrvlietypes_chanlistparamset *) ptlvpos;
- if (puserscanin && puserscanin->chanlist[0].channumber) {
-
- lbs_pr_debug(1, "Scan: Using supplied channel list\n");
+ if (!puserscanin || !puserscanin->chanlist[0].channumber) {
+ /* Create a default channel scan list */
+ lbs_deb_scan("Scan: Creating full region channel list\n");
+ wlan_scan_create_channel_list(priv, pscanchanlist,
+ *pfilteredscan);
+ goto out;
+ }
- for (chanidx = 0;
- chanidx < WLAN_IOCTL_USER_SCAN_CHAN_MAX
- && puserscanin->chanlist[chanidx].channumber; chanidx++) {
+ lbs_deb_scan("Scan: Using supplied channel list\n");
+ for (chanidx = 0;
+ chanidx < WLAN_IOCTL_USER_SCAN_CHAN_MAX
+ && puserscanin->chanlist[chanidx].channumber; chanidx++) {
- channel = puserscanin->chanlist[chanidx].channumber;
- (pscanchanlist + chanidx)->channumber = channel;
+ channel = puserscanin->chanlist[chanidx].channumber;
+ (pscanchanlist + chanidx)->channumber = channel;
- radiotype = puserscanin->chanlist[chanidx].radiotype;
- (pscanchanlist + chanidx)->radiotype = radiotype;
+ radiotype = puserscanin->chanlist[chanidx].radiotype;
+ (pscanchanlist + chanidx)->radiotype = radiotype;
- scantype = puserscanin->chanlist[chanidx].scantype;
+ scantype = puserscanin->chanlist[chanidx].scantype;
- if (scantype == cmd_scan_type_passive) {
- (pscanchanlist +
- chanidx)->chanscanmode.passivescan = 1;
- } else {
- (pscanchanlist +
- chanidx)->chanscanmode.passivescan = 0;
- }
+ 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;
+ if (puserscanin->chanlist[chanidx].scantime) {
+ scandur = puserscanin->chanlist[chanidx].scantime;
+ } else {
+ if (scantype == CMD_SCAN_TYPE_PASSIVE) {
+ scandur = MRVDRV_PASSIVE_SCAN_CHAN_TIME;
} else {
- if (scantype == cmd_scan_type_passive) {
- scandur = MRVDRV_PASSIVE_SCAN_CHAN_TIME;
- } else {
- scandur = MRVDRV_ACTIVE_SCAN_CHAN_TIME;
- }
+ 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_pr_debug(1, "Scan: Scanning current channel only");
- }
+ (pscanchanlist + chanidx)->minscantime =
+ cpu_to_le16(scandur);
+ (pscanchanlist + chanidx)->maxscantime =
+ cpu_to_le16(scandur);
+ }
- } else {
- lbs_pr_debug(1, "Scan: Creating full region channel list\n");
- wlan_scan_create_channel_list(priv, pscanchanlist,
- *pfilteredscan);
+ /* 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("Scan: Scanning current channel only");
}
out:
u8 filteredscan,
struct wlan_scan_cmd_config * pscancfgout,
struct mrvlietypes_chanlistparamset * pchantlvout,
- struct chanscanparamset * pscanchanlist)
+ struct chanscanparamset * pscanchanlist,
+ const struct wlan_ioctl_user_scan_cfg * puserscanin,
+ int full_scan)
{
struct chanscanparamset *ptmpchan;
struct chanscanparamset *pstartchan;
int doneearly;
int tlvidx;
int ret = 0;
+ int scanned = 0;
+ union iwreq_data wrqu;
- ENTER();
+ lbs_deb_enter(LBS_DEB_ASSOC);
if (pscancfgout == 0 || pchantlvout == 0 || pscanchanlist == 0) {
- lbs_pr_debug(1, "Scan: Null detect: %p, %p, %p\n",
+ lbs_deb_scan("Scan: Null detect: %p, %p, %p\n",
pscancfgout, pchantlvout, pscanchanlist);
return -1;
}
/* 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)
* - doneearly is set (controlling individual scanning of 1,6,11)
*/
while (tlvidx < maxchanperscan && ptmpchan->channumber
- && !doneearly) {
+ && !doneearly && scanned < 2) {
- lbs_pr_debug(1,
- "Scan: Chan(%3d), Radio(%d), mode(%d,%d), Dur(%d)\n",
- ptmpchan->channumber, ptmpchan->radiotype,
- ptmpchan->chanscanmode.passivescan,
- ptmpchan->chanscanmode.disablechanfilt,
- ptmpchan->maxscantime);
+ lbs_deb_scan("Scan: Chan(%3d), Radio(%d), mode(%d,%d), "
+ "Dur(%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 */
- pchantlvout->header.len +=
- sizeof(pchantlvout->chanscanparam);
+ /* 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
/* Add the size of the channel tlv header and the data length */
pscancfgout->tlvbufferlen +=
(sizeof(pchantlvout->header)
- + pchantlvout->header.len);
+ + le16_to_cpu(pchantlvout->header.len));
/* Increment the index to the channel tlv we are constructing */
tlvidx++;
/* 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
}
/* Send the scan command to the firmware with the specified cfg */
- ret = libertas_prepare_and_send_command(priv, cmd_802_11_scan, 0,
+ ret = libertas_prepare_and_send_command(priv, CMD_802_11_SCAN, 0,
0, 0, pscancfgout);
+ if (scanned >= 2 && !full_scan) {
+ ret = 0;
+ goto done;
+ }
+ scanned = 0;
}
- LEAVE();
+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);
+ }
+
+ lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
return ret;
}
+static void
+clear_selected_scan_list_entries(wlan_adapter * adapter,
+ const struct wlan_ioctl_user_scan_cfg * scan_cfg)
+{
+ struct bss_descriptor * bss;
+ struct bss_descriptor * safe;
+ u32 clear_ssid_flag = 0, clear_bssid_flag = 0;
+
+ if (!scan_cfg)
+ return;
+
+ if (scan_cfg->clear_ssid && scan_cfg->ssid_len)
+ clear_ssid_flag = 1;
+
+ 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)
+ return;
+
+ 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);
+}
+
+
/**
* @brief Internal function used to start a scan based on an input config
*
* @return 0 or < 0 if error
*/
int wlan_scan_networks(wlan_private * priv,
- const struct wlan_ioctl_user_scan_cfg * puserscanin)
+ const struct wlan_ioctl_user_scan_cfg * puserscanin,
+ int full_scan)
{
- wlan_adapter *adapter = priv->adapter;
+ wlan_adapter * adapter = priv->adapter;
struct mrvlietypes_chanlistparamset *pchantlvout;
struct chanscanparamset * scan_chan_list = NULL;
struct wlan_scan_cmd_config * scan_cfg = NULL;
- u8 keeppreviousscan;
u8 filteredscan;
u8 scancurrentchanonly;
int maxchanperscan;
int ret;
+#ifdef CONFIG_LIBERTAS_DEBUG
+ struct bss_descriptor * iter_bss;
+ int i = 0;
+#endif
+
+ lbs_deb_enter(LBS_DEB_SCAN);
- ENTER();
+ /* Cancel any partial outstanding partial scans if this scan
+ * is a full scan.
+ */
+ if (full_scan && delayed_work_pending(&priv->scan_work))
+ cancel_delayed_work(&priv->scan_work);
scan_chan_list = kzalloc(sizeof(struct chanscanparamset) *
WLAN_IOCTL_USER_SCAN_CHAN_MAX, GFP_KERNEL);
goto out;
}
- keeppreviousscan = 0;
-
- if (puserscanin) {
- keeppreviousscan = puserscanin->keeppreviousscan;
- }
-
- if (!keeppreviousscan) {
- memset(adapter->scantable, 0x00,
- sizeof(struct bss_descriptor) * MRVDRV_MAX_BSSID_LIST);
- adapter->numinscantable = 0;
- }
+ clear_selected_scan_list_entries(adapter, puserscanin);
/* Keep the data path active if we are only scanning our current channel */
if (!scancurrentchanonly) {
- netif_stop_queue(priv->wlan_dev.netdev);
- netif_carrier_off(priv->wlan_dev.netdev);
+ 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);
+ }
}
ret = wlan_scan_channel_list(priv,
filteredscan,
scan_cfg,
pchantlvout,
- scan_chan_list);
-
- /* Process the resulting scan table:
- * - Remove any bad ssids
- * - Update our current BSS information from scan data
- */
- wlan_scan_process_results(priv);
+ scan_chan_list,
+ puserscanin,
+ full_scan);
+
+#ifdef CONFIG_LIBERTAS_DEBUG
+ /* Dump the scan table */
+ mutex_lock(&adapter->lock);
+ list_for_each_entry (iter_bss, &adapter->network_list, list) {
+ lbs_deb_scan("Scan:(%02d) " MAC_FMT ", RSSI[%03d], SSID[%s]\n",
+ i++, MAC_ARG(iter_bss->bssid), (s32) iter_bss->rssi,
+ escape_essid(iter_bss->ssid, iter_bss->ssid_len));
+ }
+ mutex_unlock(&adapter->lock);
+#endif
- if (priv->adapter->connect_status == libertas_connected) {
- netif_carrier_on(priv->wlan_dev.netdev);
- netif_wake_queue(priv->wlan_dev.netdev);
+ if (priv->adapter->connect_status == LIBERTAS_CONNECTED) {
+ netif_carrier_on(priv->dev);
+ netif_wake_queue(priv->dev);
+ if (priv->mesh_dev) {
+ netif_carrier_on(priv->mesh_dev);
+ netif_wake_queue(priv->mesh_dev);
+ }
}
out:
if (scan_chan_list)
kfree(scan_chan_list);
- LEAVE();
+ lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
return ret;
}
-/**
- * @brief Inspect the scan response buffer for pointers to expected TLVs
- *
- * TLVs can be included at the end of the scan response BSS information.
- * Parse the data in the buffer for pointers to TLVs that can potentially
- * be passed back in the response
- *
- * @param ptlv Pointer to the start of the TLV buffer to parse
- * @param tlvbufsize size of the TLV buffer
- * @param ptsftlv Output parameter: Pointer to the TSF TLV if found
- *
- * @return void
- */
-static
-void wlan_ret_802_11_scan_get_tlv_ptrs(struct mrvlietypes_data * ptlv,
- int tlvbufsize,
- struct mrvlietypes_tsftimestamp ** ptsftlv)
-{
- struct mrvlietypes_data *pcurrenttlv;
- int tlvbufleft;
- u16 tlvtype;
- u16 tlvlen;
-
- pcurrenttlv = ptlv;
- tlvbufleft = tlvbufsize;
- *ptsftlv = NULL;
-
- lbs_pr_debug(1, "SCAN_RESP: tlvbufsize = %d\n", tlvbufsize);
- lbs_dbg_hex("SCAN_RESP: TLV Buf", (u8 *) ptlv, tlvbufsize);
-
- while (tlvbufleft >= sizeof(struct mrvlietypesheader)) {
- tlvtype = le16_to_cpu(pcurrenttlv->header.type);
- tlvlen = le16_to_cpu(pcurrenttlv->header.len);
-
- switch (tlvtype) {
- case TLV_TYPE_TSFTIMESTAMP:
- *ptsftlv = (struct mrvlietypes_tsftimestamp *) pcurrenttlv;
- break;
-
- default:
- lbs_pr_debug(1, "SCAN_RESP: Unhandled TLV = %d\n",
- tlvtype);
- /* Give up, this seems corrupted */
- return;
- } /* switch */
-
- tlvbufleft -= (sizeof(ptlv->header) + tlvlen);
- pcurrenttlv =
- (struct mrvlietypes_data *) (pcurrenttlv->Data + tlvlen);
- } /* while */
-}
-
/**
* @brief Interpret a BSS scan response returned from the firmware
*
* response or beacon from the scan command. Record information as needed
* in the scan table struct bss_descriptor for that entry.
*
- * @param pBSSIDEntry Output parameter: Pointer to the BSS Entry
+ * @param bss Output parameter: Pointer to the BSS Entry
*
* @return 0 or -1
*/
-static int InterpretBSSDescriptionWithIE(struct bss_descriptor * pBSSEntry,
- u8 ** pbeaconinfo, int *bytesleft)
+static int libertas_process_bss(struct bss_descriptor * bss,
+ u8 ** pbeaconinfo, int *bytesleft)
{
- enum ieeetypes_elementid elemID;
struct ieeetypes_fhparamset *pFH;
struct ieeetypes_dsparamset *pDS;
struct ieeetypes_cfparamset *pCF;
struct ieeetypes_ibssparamset *pibss;
- struct ieeetypes_capinfo *pcap;
- struct WLAN_802_11_FIXED_IEs fixedie;
- u8 *pcurrentptr;
- u8 *pRate;
- u8 elemlen;
- u8 bytestocopy;
- u8 ratesize;
- u16 beaconsize;
- u8 founddatarateie;
- int bytesleftforcurrentbeacon;
-
- struct IE_WPA *pIe;
- const u8 oui01[4] = { 0x00, 0x50, 0xf2, 0x01 };
-
struct ieeetypes_countryinfoset *pcountryinfo;
+ u8 *pos, *end, *p;
+ u8 n_ex_rates = 0, got_basic_rates = 0, n_basic_rates = 0;
+ u16 beaconsize = 0;
+ int ret;
- ENTER();
-
- founddatarateie = 0;
- ratesize = 0;
- beaconsize = 0;
+ lbs_deb_enter(LBS_DEB_ASSOC);
if (*bytesleft >= sizeof(beaconsize)) {
/* Extract & convert beacon size from the command buffer */
- memcpy(&beaconsize, *pbeaconinfo, sizeof(beaconsize));
- beaconsize = le16_to_cpu(beaconsize);
+ beaconsize = le16_to_cpup((void *)*pbeaconinfo);
*bytesleft -= sizeof(beaconsize);
*pbeaconinfo += sizeof(beaconsize);
}
if (beaconsize == 0 || beaconsize > *bytesleft) {
-
*pbeaconinfo += *bytesleft;
*bytesleft = 0;
-
return -1;
}
/* Initialize the current working beacon pointer for this BSS iteration */
- pcurrentptr = *pbeaconinfo;
+ pos = *pbeaconinfo;
+ end = pos + beaconsize;
/* Advance the return beacon pointer past the current beacon */
*pbeaconinfo += beaconsize;
*bytesleft -= beaconsize;
- bytesleftforcurrentbeacon = beaconsize;
+ memcpy(bss->bssid, pos, ETH_ALEN);
+ lbs_deb_scan("process_bss: AP BSSID " MAC_FMT "\n", MAC_ARG(bss->bssid));
+ pos += ETH_ALEN;
- memcpy(pBSSEntry->macaddress, pcurrentptr, ETH_ALEN);
- lbs_pr_debug(1, "InterpretIE: AP MAC Addr-%x:%x:%x:%x:%x:%x\n",
- pBSSEntry->macaddress[0], pBSSEntry->macaddress[1],
- pBSSEntry->macaddress[2], pBSSEntry->macaddress[3],
- pBSSEntry->macaddress[4], pBSSEntry->macaddress[5]);
-
- pcurrentptr += ETH_ALEN;
- bytesleftforcurrentbeacon -= ETH_ALEN;
-
- if (bytesleftforcurrentbeacon < 12) {
- lbs_pr_debug(1, "InterpretIE: Not enough bytes left\n");
+ if ((end - pos) < 12) {
+ lbs_deb_scan("process_bss: Not enough bytes left\n");
return -1;
}
*/
/* RSSI is 1 byte long */
- pBSSEntry->rssi = le32_to_cpu((long)(*pcurrentptr));
- lbs_pr_debug(1, "InterpretIE: RSSI=%02X\n", *pcurrentptr);
- pcurrentptr += 1;
- bytesleftforcurrentbeacon -= 1;
+ bss->rssi = *pos;
+ lbs_deb_scan("process_bss: RSSI=%02X\n", *pos);
+ pos++;
/* time stamp is 8 bytes long */
- memcpy(fixedie.timestamp, pcurrentptr, 8);
- memcpy(pBSSEntry->timestamp, pcurrentptr, 8);
- pcurrentptr += 8;
- bytesleftforcurrentbeacon -= 8;
+ pos += 8;
/* beacon interval is 2 bytes long */
- memcpy(&fixedie.beaconinterval, pcurrentptr, 2);
- pBSSEntry->beaconperiod = le16_to_cpu(fixedie.beaconinterval);
- pcurrentptr += 2;
- bytesleftforcurrentbeacon -= 2;
+ bss->beaconperiod = le16_to_cpup((void *) pos);
+ pos += 2;
/* capability information is 2 bytes long */
- memcpy(&fixedie.capabilities, pcurrentptr, 2);
- lbs_pr_debug(1, "InterpretIE: fixedie.capabilities=0x%X\n",
- fixedie.capabilities);
- fixedie.capabilities = le16_to_cpu(fixedie.capabilities);
- pcap = (struct ieeetypes_capinfo *) & fixedie.capabilities;
- memcpy(&pBSSEntry->cap, pcap, sizeof(struct ieeetypes_capinfo));
- pcurrentptr += 2;
- bytesleftforcurrentbeacon -= 2;
+ bss->capability = le16_to_cpup((void *) pos);
+ lbs_deb_scan("process_bss: capabilities = 0x%4X\n", bss->capability);
+ pos += 2;
- /* rest of the current buffer are IE's */
- lbs_pr_debug(1, "InterpretIE: IElength for this AP = %d\n",
- bytesleftforcurrentbeacon);
+ if (bss->capability & WLAN_CAPABILITY_PRIVACY)
+ lbs_deb_scan("process_bss: AP WEP enabled\n");
+ if (bss->capability & WLAN_CAPABILITY_IBSS)
+ bss->mode = IW_MODE_ADHOC;
+ else
+ bss->mode = IW_MODE_INFRA;
- lbs_dbg_hex("InterpretIE: IE info", (u8 *) pcurrentptr,
- bytesleftforcurrentbeacon);
-
- if (pcap->privacy) {
- lbs_pr_debug(1, "InterpretIE: AP WEP enabled\n");
- pBSSEntry->privacy = wlan802_11privfilter8021xWEP;
- } else {
- pBSSEntry->privacy = wlan802_11privfilteracceptall;
- }
-
- if (pcap->ibss == 1) {
- pBSSEntry->mode = IW_MODE_ADHOC;
- } else {
- pBSSEntry->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_hex(LBS_DEB_SCAN, "process_bss: IE info", pos, end - pos);
/* process variable IE */
- while (bytesleftforcurrentbeacon >= 2) {
- elemID = (enum ieeetypes_elementid) (*((u8 *) pcurrentptr));
- elemlen = *((u8 *) pcurrentptr + 1);
+ while (pos <= end - 2) {
+ struct ieee80211_info_element * elem =
+ (struct ieee80211_info_element *) pos;
- if (bytesleftforcurrentbeacon < elemlen) {
- lbs_pr_debug(1, "InterpretIE: error in processing IE, "
+ if (pos + elem->len > end) {
+ lbs_deb_scan("process_bss: error in processing IE, "
"bytes left < IE length\n");
- bytesleftforcurrentbeacon = 0;
- continue;
- }
-
- switch (elemID) {
-
- case SSID:
- pBSSEntry->ssid.ssidlength = elemlen;
- memcpy(pBSSEntry->ssid.ssid, (pcurrentptr + 2),
- elemlen);
- lbs_pr_debug(1, "ssid: %32s", pBSSEntry->ssid.ssid);
break;
+ }
- case SUPPORTED_RATES:
- memcpy(pBSSEntry->datarates, (pcurrentptr + 2),
- elemlen);
- memmove(pBSSEntry->libertas_supported_rates, (pcurrentptr + 2),
- elemlen);
- ratesize = elemlen;
- founddatarateie = 1;
+ 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),
+ bss->ssid_len);
break;
- case EXTRA_IE:
- lbs_pr_debug(1, "InterpretIE: EXTRA_IE Found!\n");
- pBSSEntry->extra_ie = 1;
+ case MFIE_TYPE_RATES:
+ n_basic_rates = min_t(u8, MAX_RATES, elem->len);
+ memcpy(bss->rates, elem->data, n_basic_rates);
+ got_basic_rates = 1;
break;
- case FH_PARAM_SET:
- pFH = (struct ieeetypes_fhparamset *) pcurrentptr;
- memmove(&pBSSEntry->phyparamset.fhparamset, pFH,
+ case MFIE_TYPE_FH_SET:
+ pFH = (struct ieeetypes_fhparamset *) pos;
+ memmove(&bss->phyparamset.fhparamset, pFH,
sizeof(struct ieeetypes_fhparamset));
- pBSSEntry->phyparamset.fhparamset.dwelltime
- =
- le16_to_cpu(pBSSEntry->phyparamset.fhparamset.
- dwelltime);
+#if 0 /* I think we can store these LE */
+ bss->phyparamset.fhparamset.dwelltime
+ = le16_to_cpu(bss->phyparamset.fhparamset.dwelltime);
+#endif
break;
- case DS_PARAM_SET:
- pDS = (struct ieeetypes_dsparamset *) pcurrentptr;
-
- pBSSEntry->channel = pDS->currentchan;
-
- memcpy(&pBSSEntry->phyparamset.dsparamset, pDS,
+ case MFIE_TYPE_DS_SET:
+ pDS = (struct ieeetypes_dsparamset *) pos;
+ bss->channel = pDS->currentchan;
+ memcpy(&bss->phyparamset.dsparamset, pDS,
sizeof(struct ieeetypes_dsparamset));
break;
- case CF_PARAM_SET:
- pCF = (struct ieeetypes_cfparamset *) pcurrentptr;
-
- memcpy(&pBSSEntry->ssparamset.cfparamset, pCF,
+ case MFIE_TYPE_CF_SET:
+ pCF = (struct ieeetypes_cfparamset *) pos;
+ memcpy(&bss->ssparamset.cfparamset, pCF,
sizeof(struct ieeetypes_cfparamset));
break;
- case IBSS_PARAM_SET:
- pibss = (struct ieeetypes_ibssparamset *) pcurrentptr;
- pBSSEntry->atimwindow =
- le32_to_cpu(pibss->atimwindow);
-
- memmove(&pBSSEntry->ssparamset.ibssparamset, pibss,
+ 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));
-
- pBSSEntry->ssparamset.ibssparamset.atimwindow
- =
- le16_to_cpu(pBSSEntry->ssparamset.ibssparamset.
- atimwindow);
+#if 0
+ bss->ssparamset.ibssparamset.atimwindow
+ = le16_to_cpu(bss->ssparamset.ibssparamset.atimwindow);
+#endif
break;
- /* Handle Country Info IE */
- case COUNTRY_INFO:
- pcountryinfo =
- (struct ieeetypes_countryinfoset *) pcurrentptr;
-
- if (pcountryinfo->len <
- sizeof(pcountryinfo->countrycode)
+ case MFIE_TYPE_COUNTRY:
+ pcountryinfo = (struct ieeetypes_countryinfoset *) pos;
+ if (pcountryinfo->len < sizeof(pcountryinfo->countrycode)
|| pcountryinfo->len > 254) {
- lbs_pr_debug(1, "InterpretIE: 11D- Err "
+ lbs_deb_scan("process_bss: 11D- Err "
"CountryInfo len =%d min=%zd max=254\n",
pcountryinfo->len,
sizeof(pcountryinfo->countrycode));
- LEAVE();
- return -1;
+ ret = -1;
+ goto done;
}
- memcpy(&pBSSEntry->countryinfo,
+ memcpy(&bss->countryinfo,
pcountryinfo, pcountryinfo->len + 2);
- lbs_dbg_hex("InterpretIE: 11D- CountryInfo:",
+ lbs_deb_hex(LBS_DEB_SCAN, "process_bss: 11d countryinfo",
(u8 *) pcountryinfo,
(u32) (pcountryinfo->len + 2));
break;
- case EXTENDED_SUPPORTED_RATES:
- /*
- * only process extended supported rate
- * if data rate is already found.
- * data rate IE should come before
+ case MFIE_TYPE_RATES_EX:
+ /* only process extended supported rate if data rate is
+ * already found. Data rate IE should come before
* extended supported rate IE
*/
- if (founddatarateie) {
- if ((elemlen + ratesize) > WLAN_SUPPORTED_RATES) {
- bytestocopy =
- (WLAN_SUPPORTED_RATES - ratesize);
- } else {
- bytestocopy = elemlen;
- }
-
- pRate = (u8 *) pBSSEntry->datarates;
- pRate += ratesize;
- memmove(pRate, (pcurrentptr + 2), bytestocopy);
-
- pRate = (u8 *) pBSSEntry->libertas_supported_rates;
-
- pRate += ratesize;
- memmove(pRate, (pcurrentptr + 2), bytestocopy);
- }
- break;
-
- case VENDOR_SPECIFIC_221:
-#define IE_ID_LEN_FIELDS_BYTES 2
- pIe = (struct IE_WPA *)pcurrentptr;
-
- if (memcmp(pIe->oui, oui01, sizeof(oui01)))
+ if (!got_basic_rates)
break;
- pBSSEntry->wpa_ie_len = min_t(size_t,
- elemlen + IE_ID_LEN_FIELDS_BYTES,
- sizeof(pBSSEntry->wpa_ie));
- memcpy(pBSSEntry->wpa_ie, pcurrentptr,
- pBSSEntry->wpa_ie_len);
- lbs_dbg_hex("InterpretIE: Resp WPA_IE",
- pBSSEntry->wpa_ie, elemlen);
+ n_ex_rates = elem->len;
+ 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);
break;
- case WPA2_IE:
- pIe = (struct IE_WPA *)pcurrentptr;
-
- pBSSEntry->rsn_ie_len = min_t(size_t,
- elemlen + IE_ID_LEN_FIELDS_BYTES,
- sizeof(pBSSEntry->rsn_ie));
- memcpy(pBSSEntry->rsn_ie, pcurrentptr,
- pBSSEntry->rsn_ie_len);
- lbs_dbg_hex("InterpretIE: Resp WPA2_IE",
- pBSSEntry->rsn_ie, elemlen);
+
+ 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) {
+ bss->mesh = 1;
+ }
break;
- case TIM:
+
+ 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);
break;
- case CHALLENGE_TEXT:
+ default:
break;
}
- pcurrentptr += elemlen + 2;
+ pos += elem->len + 2;
+ }
- /* need to account for IE ID and IE len */
- bytesleftforcurrentbeacon -= (elemlen + 2);
+ /* Timestamp */
+ bss->last_scanned = jiffies;
+ libertas_unset_basic_rate_flags(bss->rates, sizeof(bss->rates));
- } /* while (bytesleftforcurrentbeacon > 2) */
+ ret = 0;
- return 0;
+done:
+ lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
+ return ret;
}
/**
*
* @return 0--ssid is same, otherwise is different
*/
-int libertas_SSID_cmp(struct WLAN_802_11_SSID *ssid1, struct WLAN_802_11_SSID *ssid2)
+int libertas_ssid_cmp(u8 *ssid1, u8 ssid1_len, u8 *ssid2, u8 ssid2_len)
{
- if (!ssid1 || !ssid2)
+ if (ssid1_len != ssid2_len)
return -1;
- if (ssid1->ssidlength != ssid2->ssidlength)
- return -1;
-
- return memcmp(ssid1->ssid, ssid2->ssid, ssid1->ssidlength);
+ return memcmp(ssid1, ssid2, ssid1_len);
}
/**
*
* @return index in BSSID list, or error return code (< 0)
*/
-int libertas_find_BSSID_in_list(wlan_adapter * adapter, u8 * bssid, u8 mode)
+struct bss_descriptor * libertas_find_bssid_in_list(wlan_adapter * adapter,
+ u8 * bssid, u8 mode)
{
- int ret = -ENETUNREACH;
- int i;
+ struct bss_descriptor * iter_bss;
+ struct bss_descriptor * found_bss = NULL;
if (!bssid)
- return -EFAULT;
+ return NULL;
- lbs_pr_debug(1, "FindBSSID: Num of BSSIDs = %d\n",
- adapter->numinscantable);
+ lbs_deb_hex(LBS_DEB_SCAN, "looking for",
+ bssid, ETH_ALEN);
- /* Look through the scan table for a compatible match. The ret return
- * variable will be equal to the index in the scan table (greater
- * than zero) if the network is compatible. 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
+ /* 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
*/
- for (i = 0; ret < 0 && i < adapter->numinscantable; i++) {
- if (!memcmp(adapter->scantable[i].macaddress, bssid, ETH_ALEN)) {
- switch (mode) {
- case IW_MODE_INFRA:
- case IW_MODE_ADHOC:
- ret = is_network_compatible(adapter, i, mode);
- break;
- default:
- ret = i;
+ 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);
- return ret;
+ return found_bss;
}
/**
*
* @return index in BSSID list
*/
-int libertas_find_SSID_in_list(wlan_adapter * adapter,
- struct WLAN_802_11_SSID *ssid, u8 * bssid, u8 mode)
+struct bss_descriptor * libertas_find_ssid_in_list(wlan_adapter * adapter,
+ u8 *ssid, u8 ssid_len, u8 * bssid, u8 mode,
+ int channel)
{
- int net = -ENETUNREACH;
u8 bestrssi = 0;
- int i;
- int j;
+ struct bss_descriptor * iter_bss = NULL;
+ struct bss_descriptor * found_bss = NULL;
+ struct bss_descriptor * tmp_oldest = NULL;
- lbs_pr_debug(1, "Num of Entries in Table = %d\n", adapter->numinscantable);
-
- for (i = 0; i < adapter->numinscantable; i++) {
- if (!libertas_SSID_cmp(&adapter->scantable[i].ssid, ssid) &&
- (!bssid ||
- !memcmp(adapter->scantable[i].
- macaddress, bssid, ETH_ALEN))) {
- switch (mode) {
- case IW_MODE_INFRA:
- case IW_MODE_ADHOC:
- j = is_network_compatible(adapter, i, mode);
-
- if (j >= 0) {
- if (bssid) {
- return i;
- }
-
- if (SCAN_RSSI
- (adapter->scantable[i].rssi)
- > bestrssi) {
- bestrssi =
- SCAN_RSSI(adapter->
- scantable[i].
- rssi);
- net = i;
- }
- } else {
- if (net == -ENETUNREACH) {
- net = j;
- }
- }
- break;
- case IW_MODE_AUTO:
- default:
- if (SCAN_RSSI(adapter->scantable[i].rssi)
- > bestrssi) {
- bestrssi =
- SCAN_RSSI(adapter->scantable[i].
- rssi);
- net = i;
- }
+ 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 (libertas_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;
}
}
- return net;
+out:
+ mutex_unlock(&adapter->lock);
+ return found_bss;
}
/**
*
* @return index in BSSID list
*/
-int libertas_find_best_SSID_in_list(wlan_adapter * adapter, u8 mode)
+static struct bss_descriptor * libertas_find_best_ssid_in_list(wlan_adapter * adapter,
+ u8 mode)
{
- int bestnet = -ENETUNREACH;
u8 bestrssi = 0;
- int i;
-
- ENTER();
+ struct bss_descriptor * iter_bss;
+ struct bss_descriptor * best_bss = NULL;
- lbs_pr_debug(1, "Num of BSSIDs = %d\n", adapter->numinscantable);
+ mutex_lock(&adapter->lock);
- for (i = 0; i < adapter->numinscantable; i++) {
+ 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, i, mode) >= 0) {
- if (SCAN_RSSI(adapter->scantable[i].rssi) >
- bestrssi) {
- bestrssi =
- SCAN_RSSI(adapter->scantable[i].
- rssi);
- bestnet = i;
- }
- }
+ 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(adapter->scantable[i].rssi) > bestrssi) {
- bestrssi =
- SCAN_RSSI(adapter->scantable[i].rssi);
- bestnet = i;
- }
+ if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
+ break;
+ bestrssi = SCAN_RSSI(iter_bss->rssi);
+ best_bss = iter_bss;
break;
}
}
- LEAVE();
- return bestnet;
+ mutex_unlock(&adapter->lock);
+ return best_bss;
}
/**
*
* @return 0--success, otherwise--fail
*/
-int libertas_find_best_network_SSID(wlan_private * priv,
- struct WLAN_802_11_SSID *pSSID,
- u8 preferred_mode, u8 *out_mode)
+int libertas_find_best_network_ssid(wlan_private * priv,
+ u8 *out_ssid, u8 *out_ssid_len, u8 preferred_mode, u8 *out_mode)
{
wlan_adapter *adapter = priv->adapter;
- int ret = 0;
- struct bss_descriptor *preqbssid;
- int i;
-
- ENTER();
+ int ret = -1;
+ struct bss_descriptor * found;
- memset(pSSID, 0, sizeof(struct WLAN_802_11_SSID));
+ lbs_deb_enter(LBS_DEB_ASSOC);
- wlan_scan_networks(priv, NULL);
+ wlan_scan_networks(priv, NULL, 1);
if (adapter->surpriseremoved)
return -1;
- wait_event_interruptible(adapter->cmd_pending, !adapter->nr_cmd_pending);
- i = libertas_find_best_SSID_in_list(adapter, preferred_mode);
- if (i < 0) {
- ret = -1;
- goto out;
- }
-
- preqbssid = &adapter->scantable[i];
- memcpy(pSSID, &preqbssid->ssid,
- sizeof(struct WLAN_802_11_SSID));
- *out_mode = preqbssid->mode;
+ wait_event_interruptible(adapter->cmd_pending, !adapter->nr_cmd_pending);
- if (!pSSID->ssidlength) {
- ret = -1;
+ found = libertas_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:
- LEAVE();
+ lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
return ret;
}
{
wlan_private *priv = dev->priv;
wlan_adapter *adapter = priv->adapter;
- union iwreq_data wrqu;
- ENTER();
+ lbs_deb_enter(LBS_DEB_SCAN);
- if (!wlan_scan_networks(priv, NULL)) {
- memset(&wrqu, 0, sizeof(union iwreq_data));
- wireless_send_event(priv->wlan_dev.netdev, SIOCGIWSCAN, &wrqu,
- NULL);
+ 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;
- LEAVE();
+ lbs_deb_leave(LBS_DEB_SCAN);
return 0;
}
*
* @return 0-success, otherwise fail
*/
-int libertas_send_specific_SSID_scan(wlan_private * priv,
- struct WLAN_802_11_SSID *prequestedssid,
- u8 keeppreviousscan)
+int libertas_send_specific_ssid_scan(wlan_private * priv,
+ u8 *ssid, u8 ssid_len, u8 clear_ssid)
{
wlan_adapter *adapter = priv->adapter;
struct wlan_ioctl_user_scan_cfg scancfg;
+ int ret = 0;
- ENTER();
+ lbs_deb_enter(LBS_DEB_ASSOC);
- if (prequestedssid == NULL) {
- return -1;
- }
+ 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(scancfg.specificSSID, prequestedssid->ssid,
- prequestedssid->ssidlength);
- scancfg.keeppreviousscan = keeppreviousscan;
-
- wlan_scan_networks(priv, &scancfg);
+ wlan_scan_networks(priv, &scancfg, 1);
if (adapter->surpriseremoved)
return -1;
wait_event_interruptible(adapter->cmd_pending, !adapter->nr_cmd_pending);
- LEAVE();
- return 0;
+out:
+ lbs_deb_leave(LBS_DEB_ASSOC);
+ return ret;
}
-/**
- * @brief scan an AP with specific BSSID
- *
- * @param priv A pointer to wlan_private structure
- * @param bssid A pointer to AP's bssid
- * @param keeppreviousscan Flag used to save/clear scan table before scan
- *
- * @return 0-success, otherwise fail
- */
-int libertas_send_specific_BSSID_scan(wlan_private * priv, u8 * bssid, u8 keeppreviousscan)
+#define MAX_CUSTOM_LEN 64
+
+static inline char *libertas_translate_scan(wlan_private *priv,
+ char *start, char *stop,
+ struct bss_descriptor *bss)
{
- struct wlan_ioctl_user_scan_cfg scancfg;
+ wlan_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;
- ENTER();
+ cfp = libertas_find_cfp_by_band_and_channel(adapter, 0, bss->channel);
+ if (!cfp) {
+ lbs_deb_scan("Invalid channel number %d\n", bss->channel);
+ return NULL;
+ }
- if (bssid == NULL) {
- return -1;
+ /* First entry *MUST* be the AP 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);
+
+ /* 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);
+
+ /* Mode */
+ iwe.cmd = SIOCGIWMODE;
+ iwe.u.mode = bss->mode;
+ start = iwe_stream_add_event(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);
+
+ /* Add quality statistics */
+ iwe.cmd = IWEVQUAL;
+ iwe.u.qual.updated = IW_QUAL_ALL_UPDATED;
+ iwe.u.qual.level = SCAN_RSSI(bss->rssi);
+
+ 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);
+ if (iwe.u.qual.qual > 100)
+ iwe.u.qual.qual = 100;
+
+ if (adapter->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]);
}
- memset(&scancfg, 0x00, sizeof(scancfg));
- memcpy(scancfg.specificBSSID, bssid, sizeof(scancfg.specificBSSID));
- scancfg.keeppreviousscan = keeppreviousscan;
+ /* 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
+ && !libertas_ssid_cmp(adapter->curbssparams.ssid,
+ adapter->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;
+ iwe.u.qual.level = CAL_RSSI(snr, nf);
+ }
+ start = iwe_stream_add_event(start, stop, &iwe, IW_EV_QUAL_LEN);
- wlan_scan_networks(priv, &scancfg);
- if (priv->adapter->surpriseremoved)
- return -1;
- wait_event_interruptible(priv->adapter->cmd_pending,
- !priv->adapter->nr_cmd_pending);
+ /* Add encryption capability */
+ iwe.cmd = SIOCGIWENCODE;
+ if (bss->capability & WLAN_CAPABILITY_PRIVACY) {
+ iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
+ } else {
+ iwe.u.data.flags = IW_ENCODE_DISABLED;
+ }
+ iwe.u.data.length = 0;
+ start = iwe_stream_add_point(start, stop, &iwe, bss->ssid);
- LEAVE();
- return 0;
+ current_val = start + IW_EV_LCP_LEN;
+
+ 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++) {
+ /* 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);
+ }
+ if ((bss->mode == IW_MODE_ADHOC)
+ && !libertas_ssid_cmp(adapter->curbssparams.ssid,
+ adapter->curbssparams.ssid_len,
+ bss->ssid, bss->ssid_len)
+ && adapter->adhoccreate) {
+ iwe.u.bitrate.value = 22 * 500000;
+ current_val = iwe_stream_add_value(start, current_val,
+ stop, &iwe, IW_EV_PARAM_LEN);
+ }
+ /* Check if we added any event */
+ if((current_val - start) > IW_EV_LCP_LEN)
+ start = current_val;
+
+ memset(&iwe, 0, sizeof(iwe));
+ if (bss->wpa_ie_len) {
+ char buf[MAX_WPA_IE_LEN];
+ 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);
+ }
+
+ memset(&iwe, 0, sizeof(iwe));
+ if (bss->rsn_ie_len) {
+ char buf[MAX_WPA_IE_LEN];
+ 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);
+ }
+
+ if (bss->mesh) {
+ char custom[MAX_CUSTOM_LEN];
+ char *p = custom;
+
+ iwe.cmd = IWEVCUSTOM;
+ p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
+ "mesh-type: olpc");
+ iwe.u.data.length = p - custom;
+ if (iwe.u.data.length)
+ start = iwe_stream_add_point(start, stop, &iwe, custom);
+ }
+
+ return start;
}
/**
int libertas_get_scan(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
+#define SCAN_ITEM_SIZE 128
wlan_private *priv = dev->priv;
wlan_adapter *adapter = priv->adapter;
- int ret = 0;
- char *current_ev = extra;
- char *end_buf = extra + IW_SCAN_MAX_DATA;
- struct chan_freq_power *cfp;
- struct bss_descriptor *pscantable;
- char *current_val; /* For rates */
- struct iw_event iwe; /* Temporary buffer */
- int i;
- int j;
- int rate;
-#define PERFECT_RSSI ((u8)50)
-#define WORST_RSSI ((u8)0)
-#define RSSI_DIFF ((u8)(PERFECT_RSSI - WORST_RSSI))
- u8 rssi;
-
- u8 buf[16 + 256 * 2];
- u8 *ptr;
-
- ENTER();
-
- /*
- * if there's either commands in the queue or one being
- * processed return -EAGAIN for iwlist to retry later.
- */
- if (adapter->nr_cmd_pending)
- return -EAGAIN;
-
- if (adapter->connect_status == libertas_connected)
- lbs_pr_debug(1, "Current ssid: %32s\n",
- adapter->curbssparams.ssid.ssid);
+ int err = 0;
+ char *ev = extra;
+ char *stop = ev + dwrq->length;
+ struct bss_descriptor * iter_bss;
+ struct bss_descriptor * safe;
+
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ /* Update RSSI if current BSS is a locally created ad-hoc BSS */
+ if ((adapter->mode == IW_MODE_ADHOC) && adapter->adhoccreate) {
+ libertas_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
+ CMD_OPTION_WAITFORRSP, 0, NULL);
+ }
- lbs_pr_debug(1, "Scan: Get: numinscantable = %d\n",
- adapter->numinscantable);
+ mutex_lock(&adapter->lock);
+ list_for_each_entry_safe (iter_bss, safe, &adapter->network_list, list) {
+ char * next_ev;
+ unsigned long stale_time;
- /* The old API using SIOCGIWAPLIST had a hard limit of IW_MAX_AP.
- * The new API using SIOCGIWSCAN is only limited by buffer size
- * WE-14 -> WE-16 the buffer is limited to IW_SCAN_MAX_DATA bytes
- * which is 4096.
- */
- for (i = 0; i < adapter->numinscantable; i++) {
- if ((current_ev + MAX_SCAN_CELL_SIZE) >= end_buf) {
- lbs_pr_debug(1, "i=%d break out: current_ev=%p end_buf=%p "
- "MAX_SCAN_CELL_SIZE=%zd\n",
- i, current_ev, end_buf, MAX_SCAN_CELL_SIZE);
+ if (stop - ev < SCAN_ITEM_SIZE) {
+ err = -E2BIG;
break;
}
- pscantable = &adapter->scantable[i];
-
- lbs_pr_debug(1, "i=%d ssid: %32s\n", i, pscantable->ssid.ssid);
-
- cfp =
- libertas_find_cfp_by_band_and_channel(adapter, 0,
- pscantable->channel);
- if (!cfp) {
- lbs_pr_debug(1, "Invalid channel number %d\n",
- pscantable->channel);
+ /* For mesh device, list only mesh networks */
+ if (dev == priv->mesh_dev && !iter_bss->mesh)
continue;
- }
- if (!ssid_valid(&adapter->scantable[i].ssid)) {
+ /* 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);
+ clear_bss_descriptor(iter_bss);
continue;
}
- /* First entry *MUST* be the AP MAC address */
- iwe.cmd = SIOCGIWAP;
- iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
- memcpy(iwe.u.ap_addr.sa_data,
- &adapter->scantable[i].macaddress, ETH_ALEN);
-
- iwe.len = IW_EV_ADDR_LEN;
- current_ev =
- iwe_stream_add_event(current_ev, end_buf, &iwe, iwe.len);
-
- //Add the ESSID
- iwe.u.data.length = adapter->scantable[i].ssid.ssidlength;
-
- if (iwe.u.data.length > 32) {
- iwe.u.data.length = 32;
- }
-
- iwe.cmd = SIOCGIWESSID;
- iwe.u.data.flags = 1;
- iwe.len = IW_EV_POINT_LEN + iwe.u.data.length;
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- adapter->scantable[i].ssid.
- ssid);
-
- //Add mode
- iwe.cmd = SIOCGIWMODE;
- iwe.u.mode = adapter->scantable[i].mode;
- iwe.len = IW_EV_UINT_LEN;
- current_ev =
- iwe_stream_add_event(current_ev, end_buf, &iwe, iwe.len);
-
- //frequency
- iwe.cmd = SIOCGIWFREQ;
- iwe.u.freq.m = (long)cfp->freq * 100000;
- iwe.u.freq.e = 1;
- iwe.len = IW_EV_FREQ_LEN;
- current_ev =
- iwe_stream_add_event(current_ev, end_buf, &iwe, iwe.len);
-
- /* Add quality statistics */
- iwe.cmd = IWEVQUAL;
- iwe.u.qual.updated = IW_QUAL_ALL_UPDATED;
- iwe.u.qual.level = SCAN_RSSI(adapter->scantable[i].rssi);
-
- 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);
- if (iwe.u.qual.qual > 100)
- iwe.u.qual.qual = 100;
- else if (iwe.u.qual.qual < 1)
- iwe.u.qual.qual = 0;
-
- if (adapter->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]);
- }
- if ((adapter->mode == IW_MODE_ADHOC) &&
- !libertas_SSID_cmp(&adapter->curbssparams.ssid,
- &adapter->scantable[i].ssid)
- && adapter->adhoccreate) {
- ret = libertas_prepare_and_send_command(priv,
- cmd_802_11_rssi,
- 0,
- cmd_option_waitforrsp,
- 0, NULL);
-
- if (!ret) {
- iwe.u.qual.level =
- CAL_RSSI(adapter->SNR[TYPE_RXPD][TYPE_AVG] /
- AVG_SCALE,
- adapter->NF[TYPE_RXPD][TYPE_AVG] /
- AVG_SCALE);
- }
- }
- iwe.len = IW_EV_QUAL_LEN;
- current_ev =
- iwe_stream_add_event(current_ev, end_buf, &iwe, iwe.len);
-
- /* Add encryption capability */
- iwe.cmd = SIOCGIWENCODE;
- if (adapter->scantable[i].privacy) {
- iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
- } else {
- iwe.u.data.flags = IW_ENCODE_DISABLED;
- }
- iwe.u.data.length = 0;
- iwe.len = IW_EV_POINT_LEN + iwe.u.data.length;
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- adapter->scantable->ssid.
- ssid);
-
- current_val = current_ev + IW_EV_LCP_LEN;
-
- iwe.cmd = SIOCGIWRATE;
-
- iwe.u.bitrate.fixed = 0;
- iwe.u.bitrate.disabled = 0;
- iwe.u.bitrate.value = 0;
-
- /* Bit rate given in 500 kb/s units (+ 0x80) */
- for (j = 0; j < sizeof(adapter->scantable[i].libertas_supported_rates);
- j++) {
- if (adapter->scantable[i].libertas_supported_rates[j] == 0) {
- break;
- }
- rate =
- (adapter->scantable[i].libertas_supported_rates[j] & 0x7F) *
- 500000;
- if (rate > iwe.u.bitrate.value) {
- iwe.u.bitrate.value = rate;
- }
-
- iwe.u.bitrate.value =
- (adapter->scantable[i].libertas_supported_rates[j]
- & 0x7f) * 500000;
- iwe.len = IW_EV_PARAM_LEN;
- current_ev =
- iwe_stream_add_value(current_ev, current_val,
- end_buf, &iwe, iwe.len);
-
- }
- if ((adapter->scantable[i].mode == IW_MODE_ADHOC)
- && !libertas_SSID_cmp(&adapter->curbssparams.ssid,
- &adapter->scantable[i].ssid)
- && adapter->adhoccreate) {
- iwe.u.bitrate.value = 22 * 500000;
- }
- iwe.len = IW_EV_PARAM_LEN;
- current_ev =
- iwe_stream_add_value(current_ev, current_val, end_buf, &iwe,
- iwe.len);
-
- /* Add new value to event */
- current_val = current_ev + IW_EV_LCP_LEN;
-
- if (adapter->scantable[i].rsn_ie[0] == WPA2_IE) {
- memset(&iwe, 0, sizeof(iwe));
- memset(buf, 0, sizeof(buf));
- memcpy(buf, adapter->scantable[i].rsn_ie,
- adapter->scantable[i].rsn_ie_len);
- iwe.cmd = IWEVGENIE;
- iwe.u.data.length = adapter->scantable[i].rsn_ie_len;
- iwe.len = IW_EV_POINT_LEN + iwe.u.data.length;
- current_ev = iwe_stream_add_point(current_ev, end_buf,
- &iwe, buf);
- }
- if (adapter->scantable[i].wpa_ie[0] == WPA_IE) {
- memset(&iwe, 0, sizeof(iwe));
- memset(buf, 0, sizeof(buf));
- memcpy(buf, adapter->scantable[i].wpa_ie,
- adapter->scantable[i].wpa_ie_len);
- iwe.cmd = IWEVGENIE;
- iwe.u.data.length = adapter->scantable[i].wpa_ie_len;
- iwe.len = IW_EV_POINT_LEN + iwe.u.data.length;
- current_ev = iwe_stream_add_point(current_ev, end_buf,
- &iwe, buf);
- }
-
-
- if (adapter->scantable[i].extra_ie != 0) {
- memset(&iwe, 0, sizeof(iwe));
- memset(buf, 0, sizeof(buf));
- ptr = buf;
- ptr += sprintf(ptr, "extra_ie");
- iwe.u.data.length = strlen(buf);
-
- lbs_pr_debug(1, "iwe.u.data.length %d\n",
- iwe.u.data.length);
- lbs_pr_debug(1, "BUF: %s \n", buf);
-
- iwe.cmd = IWEVCUSTOM;
- iwe.len = IW_EV_POINT_LEN + iwe.u.data.length;
- current_ev =
- iwe_stream_add_point(current_ev, end_buf, &iwe,
- buf);
- }
-
- current_val = current_ev + IW_EV_LCP_LEN;
-
- /*
- * Check if we added any event
- */
- if ((current_val - current_ev) > IW_EV_LCP_LEN)
- current_ev = current_val;
+ /* Translate to WE format this entry */
+ next_ev = libertas_translate_scan(priv, ev, stop, iter_bss);
+ if (next_ev == NULL)
+ continue;
+ ev = next_ev;
}
+ mutex_unlock(&adapter->lock);
- dwrq->length = (current_ev - extra);
+ dwrq->length = (ev - extra);
dwrq->flags = 0;
- LEAVE();
- return 0;
+ lbs_deb_leave(LBS_DEB_ASSOC);
+ return err;
}
/**
struct cmd_ds_802_11_scan *pscan = &cmd->params.scan;
struct wlan_scan_cmd_config *pscancfg;
- ENTER();
+ lbs_deb_enter(LBS_DEB_ASSOC);
pscancfg = pdata_buf;
/* Set fixed field variables in scan command */
pscan->bsstype = pscancfg->bsstype;
- memcpy(pscan->BSSID, pscancfg->specificBSSID, sizeof(pscan->BSSID));
+ memcpy(pscan->bssid, pscancfg->bssid, ETH_ALEN);
memcpy(pscan->tlvbuffer, pscancfg->tlvbuffer, pscancfg->tlvbufferlen);
- cmd->command = cpu_to_le16(cmd_802_11_scan);
+ 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)
- + sizeof(pscan->BSSID)
- + pscancfg->tlvbufferlen + S_DS_GEN);
+ cmd->size = cpu_to_le16(sizeof(pscan->bsstype) + ETH_ALEN
+ + pscancfg->tlvbufferlen + S_DS_GEN);
- lbs_pr_debug(1, "SCAN_CMD: command=%x, size=%x, seqnum=%x\n",
- cmd->command, cmd->size, cmd->seqnum);
- LEAVE();
+ lbs_deb_scan("SCAN_CMD: command=%x, size=%x, seqnum=%x\n",
+ le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
+ le16_to_cpu(cmd->seqnum));
+
+ lbs_deb_leave(LBS_DEB_ASSOC);
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
*
{
wlan_adapter *adapter = priv->adapter;
struct cmd_ds_802_11_scan_rsp *pscan;
- struct bss_descriptor newbssentry;
- struct mrvlietypes_data *ptlv;
- struct mrvlietypes_tsftimestamp *ptsftlv;
+ struct bss_descriptor * iter_bss;
+ struct bss_descriptor * safe;
u8 *pbssinfo;
u16 scanrespsize;
int bytesleft;
- int numintable;
- int bssIdx;
int idx;
int tlvbufsize;
- u64 tsfval;
+ int ret;
- ENTER();
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ /* Prune old entries from scan table */
+ list_for_each_entry_safe (iter_bss, safe, &adapter->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);
+ clear_bss_descriptor(iter_bss);
+ }
pscan = &resp->params.scanresp;
- if (pscan->nr_sets > MRVDRV_MAX_BSSID_LIST) {
- lbs_pr_debug(1,
- "SCAN_RESP: Invalid number of AP returned (%d)!!\n",
- pscan->nr_sets);
- LEAVE();
- return -1;
+ 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);
+ ret = -1;
+ goto done;
}
bytesleft = le16_to_cpu(pscan->bssdescriptsize);
- lbs_pr_debug(1, "SCAN_RESP: bssdescriptsize %d\n", bytesleft);
+ lbs_deb_scan("SCAN_RESP: bssdescriptsize %d\n", bytesleft);
scanrespsize = le16_to_cpu(resp->size);
- lbs_pr_debug(1, "SCAN_RESP: returned %d AP before parsing\n",
+ lbs_deb_scan("SCAN_RESP: returned %d AP before parsing\n",
pscan->nr_sets);
- numintable = adapter->numinscantable;
pbssinfo = pscan->bssdesc_and_tlvbuffer;
/* The size of the TLV buffer is equal to the entire command response
+ sizeof(pscan->nr_sets)
+ S_DS_GEN);
- ptlv = (struct mrvlietypes_data *) (pscan->bssdesc_and_tlvbuffer + bytesleft);
-
- /* Search the TLV buffer space in the scan response for any valid TLVs */
- wlan_ret_802_11_scan_get_tlv_ptrs(ptlv, tlvbufsize, &ptsftlv);
-
/*
* Process each scan response returned (pscan->nr_sets). Save
* the information in the newbssentry and then insert into the
* or as an addition at the end of the table
*/
for (idx = 0; idx < pscan->nr_sets && bytesleft; idx++) {
- /* Zero out the newbssentry we are about to store info in */
- memset(&newbssentry, 0x00, sizeof(newbssentry));
+ struct bss_descriptor new;
+ struct bss_descriptor * found = NULL;
+ struct bss_descriptor * oldest = NULL;
/* Process the data fields and IEs returned for this BSS */
- if ((InterpretBSSDescriptionWithIE(&newbssentry,
- &pbssinfo,
- &bytesleft) ==
- 0)
- && CHECK_SSID_IS_VALID(&newbssentry.ssid)) {
-
- lbs_pr_debug(1,
- "SCAN_RESP: BSSID = %02x:%02x:%02x:%02x:%02x:%02x\n",
- newbssentry.macaddress[0],
- newbssentry.macaddress[1],
- newbssentry.macaddress[2],
- newbssentry.macaddress[3],
- newbssentry.macaddress[4],
- newbssentry.macaddress[5]);
-
- /*
- * Search the scan table for the same bssid
- */
- for (bssIdx = 0; bssIdx < numintable; bssIdx++) {
- if (memcmp(newbssentry.macaddress,
- adapter->scantable[bssIdx].
- macaddress,
- sizeof(newbssentry.macaddress)) ==
- 0) {
- /*
- * If the SSID matches as well, it is a duplicate of
- * this entry. Keep the bssIdx set to this
- * entry so we replace the old contents in the table
- */
- if ((newbssentry.ssid.ssidlength ==
- adapter->scantable[bssIdx].ssid.
- ssidlength)
- &&
- (memcmp
- (newbssentry.ssid.ssid,
- adapter->scantable[bssIdx].ssid.
- ssid,
- newbssentry.ssid.ssidlength) ==
- 0)) {
- lbs_pr_debug(1,
- "SCAN_RESP: Duplicate of index: %d\n",
- bssIdx);
- break;
- }
- }
- }
- /*
- * If the bssIdx is equal to the number of entries in the table,
- * the new entry was not a duplicate; append it to the scan
- * table
- */
- if (bssIdx == numintable) {
- /* Range check the bssIdx, keep it limited to the last entry */
- if (bssIdx == MRVDRV_MAX_BSSID_LIST) {
- bssIdx--;
- } else {
- numintable++;
- }
- }
-
- /*
- * If the TSF TLV was appended to the scan results, save the
- * this entries TSF value in the networktsf field. The
- * networktsf is the firmware's TSF value at the time the
- * beacon or probe response was received.
- */
- if (ptsftlv) {
- memcpy(&tsfval, &ptsftlv->tsftable[idx],
- sizeof(tsfval));
- tsfval = le64_to_cpu(tsfval);
+ memset(&new, 0, sizeof (struct bss_descriptor));
+ if (libertas_process_bss(&new, &pbssinfo, &bytesleft) != 0) {
+ /* error parsing the scan response, skipped */
+ lbs_deb_scan("SCAN_RESP: process_bss returned ERROR\n");
+ continue;
+ }
- memcpy(&newbssentry.networktsf,
- &tsfval, sizeof(newbssentry.networktsf));
+ /* Try to find this bss in the scan table */
+ list_for_each_entry (iter_bss, &adapter->network_list, list) {
+ if (is_same_network(iter_bss, &new)) {
+ found = iter_bss;
+ break;
}
- /* Copy the locally created newbssentry to the scan table */
- memcpy(&adapter->scantable[bssIdx],
- &newbssentry,
- sizeof(adapter->scantable[bssIdx]));
+ if ((oldest == NULL) ||
+ (iter_bss->last_scanned < oldest->last_scanned))
+ oldest = iter_bss;
+ }
+ if (found) {
+ /* found, clear it */
+ clear_bss_descriptor(found);
+ } else if (!list_empty(&adapter->network_free_list)) {
+ /* Pull one from the free list */
+ found = list_entry(adapter->network_free_list.next,
+ struct bss_descriptor, list);
+ list_move_tail(&found->list, &adapter->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);
} else {
-
- /* error parsing/interpreting the scan response, skipped */
- lbs_pr_debug(1, "SCAN_RESP: "
- "InterpretBSSDescriptionWithIE returned ERROR\n");
+ continue;
}
- }
- lbs_pr_debug(1, "SCAN_RESP: Scanned %2d APs, %d valid, %d total\n",
- pscan->nr_sets, numintable - adapter->numinscantable,
- numintable);
+ lbs_deb_scan("SCAN_RESP: BSSID = " MAC_FMT "\n",
+ new.bssid[0], new.bssid[1], new.bssid[2],
+ new.bssid[3], new.bssid[4], new.bssid[5]);
- /* Update the total number of BSSIDs in the scan table */
- adapter->numinscantable = numintable;
+ /* Copy the locally created newbssentry to the scan table */
+ memcpy(found, &new, offsetof(struct bss_descriptor, list));
+ }
- LEAVE();
- return 0;
+ ret = 0;
+
+done:
+ lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
+ return ret;
}
projects / linux-2.6-omap-h63xx.git / blobdiff