--- /dev/null
+/* Copyright (C) 2006, Red Hat, Inc. */
+
+#include <linux/bitops.h>
+#include <net/ieee80211.h>
+#include <linux/etherdevice.h>
+
+#include "assoc.h"
+#include "join.h"
+#include "decl.h"
+#include "hostcmd.h"
+#include "host.h"
+#include "cmd.h"
+
+
+static const u8 bssid_any[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+static const u8 bssid_off[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+
+static int assoc_helper_essid(struct lbs_private *priv,
+ struct assoc_request * assoc_req)
+{
+ int ret = 0;
+ struct bss_descriptor * bss;
+ int channel = -1;
+
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ /* FIXME: take channel into account when picking SSIDs if a channel
+ * is set.
+ */
+
+ if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
+ channel = assoc_req->channel;
+
+ lbs_deb_assoc("SSID '%s' requested\n",
+ escape_essid(assoc_req->ssid, assoc_req->ssid_len));
+ if (assoc_req->mode == IW_MODE_INFRA) {
+ lbs_send_specific_ssid_scan(priv, assoc_req->ssid,
+ assoc_req->ssid_len, 0);
+
+ bss = lbs_find_ssid_in_list(priv, assoc_req->ssid,
+ assoc_req->ssid_len, NULL, IW_MODE_INFRA, channel);
+ if (bss != NULL) {
+ memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
+ ret = lbs_associate(priv, assoc_req);
+ } else {
+ lbs_deb_assoc("SSID not found; cannot associate\n");
+ }
+ } else if (assoc_req->mode == IW_MODE_ADHOC) {
+ /* Scan for the network, do not save previous results. Stale
+ * scan data will cause us to join a non-existant adhoc network
+ */
+ lbs_send_specific_ssid_scan(priv, assoc_req->ssid,
+ assoc_req->ssid_len, 1);
+
+ /* Search for the requested SSID in the scan table */
+ bss = lbs_find_ssid_in_list(priv, assoc_req->ssid,
+ assoc_req->ssid_len, NULL, IW_MODE_ADHOC, channel);
+ if (bss != NULL) {
+ lbs_deb_assoc("SSID found, will join\n");
+ memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
+ lbs_join_adhoc_network(priv, assoc_req);
+ } else {
+ /* else send START command */
+ lbs_deb_assoc("SSID not found, creating adhoc network\n");
+ memcpy(&assoc_req->bss.ssid, &assoc_req->ssid,
+ IW_ESSID_MAX_SIZE);
+ assoc_req->bss.ssid_len = assoc_req->ssid_len;
+ lbs_start_adhoc_network(priv, assoc_req);
+ }
+ }
+
+ lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
+ return ret;
+}
+
+
+static int assoc_helper_bssid(struct lbs_private *priv,
+ struct assoc_request * assoc_req)
+{
+ int ret = 0;
+ struct bss_descriptor * bss;
+ DECLARE_MAC_BUF(mac);
+
+ lbs_deb_enter_args(LBS_DEB_ASSOC, "BSSID %s",
+ print_mac(mac, assoc_req->bssid));
+
+ /* Search for index position in list for requested MAC */
+ bss = lbs_find_bssid_in_list(priv, assoc_req->bssid,
+ assoc_req->mode);
+ if (bss == NULL) {
+ lbs_deb_assoc("ASSOC: WAP: BSSID %s not found, "
+ "cannot associate.\n", print_mac(mac, assoc_req->bssid));
+ goto out;
+ }
+
+ memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
+ if (assoc_req->mode == IW_MODE_INFRA) {
+ ret = lbs_associate(priv, assoc_req);
+ lbs_deb_assoc("ASSOC: lbs_associate(bssid) returned %d\n", ret);
+ } else if (assoc_req->mode == IW_MODE_ADHOC) {
+ lbs_join_adhoc_network(priv, assoc_req);
+ }
+
+out:
+ lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
+ return ret;
+}
+
+
+static int assoc_helper_associate(struct lbs_private *priv,
+ struct assoc_request * assoc_req)
+{
+ int ret = 0, done = 0;
+
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ /* If we're given and 'any' BSSID, try associating based on SSID */
+
+ if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
+ if (compare_ether_addr(bssid_any, assoc_req->bssid)
+ && compare_ether_addr(bssid_off, assoc_req->bssid)) {
+ ret = assoc_helper_bssid(priv, assoc_req);
+ done = 1;
+ }
+ }
+
+ if (!done && test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
+ ret = assoc_helper_essid(priv, assoc_req);
+ }
+
+ lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
+ return ret;
+}
+
+
+static int assoc_helper_mode(struct lbs_private *priv,
+ struct assoc_request * assoc_req)
+{
+ int ret = 0;
+
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ if (assoc_req->mode == priv->mode)
+ goto done;
+
+ if (assoc_req->mode == IW_MODE_INFRA) {
+ if (priv->psstate != PS_STATE_FULL_POWER)
+ lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
+ priv->psmode = LBS802_11POWERMODECAM;
+ }
+
+ priv->mode = assoc_req->mode;
+ ret = lbs_prepare_and_send_command(priv,
+ CMD_802_11_SNMP_MIB,
+ 0, CMD_OPTION_WAITFORRSP,
+ OID_802_11_INFRASTRUCTURE_MODE,
+ /* Shoot me now */ (void *) (size_t) assoc_req->mode);
+
+done:
+ lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
+ return ret;
+}
+
+
+static int update_channel(struct lbs_private *priv)
+{
+ int ret;
+
+ /* the channel in f/w could be out of sync, get the current channel */
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ ret = lbs_get_channel(priv);
+ if (ret > 0)
+ priv->curbssparams.channel = (u8) ret;
+
+ lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
+ return ret;
+}
+
+void lbs_sync_channel(struct work_struct *work)
+{
+ struct lbs_private *priv = container_of(work, struct lbs_private,
+ sync_channel);
+
+ lbs_deb_enter(LBS_DEB_ASSOC);
+ if (update_channel(priv) != 0)
+ lbs_pr_info("Channel synchronization failed.");
+ lbs_deb_leave(LBS_DEB_ASSOC);
+}
+
+static int assoc_helper_channel(struct lbs_private *priv,
+ struct assoc_request * assoc_req)
+{
+ int ret = 0;
+
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ ret = update_channel(priv);
+ if (ret < 0) {
+ lbs_deb_assoc("ASSOC: channel: error getting channel.");
+ }
+
+ if (assoc_req->channel == priv->curbssparams.channel)
+ goto done;
+
+ if (priv->mesh_dev) {
+ /* Disconnect mesh while associating -- otherwise it
+ won't let us change channels */
+ lbs_mesh_config(priv, 0);
+ }
+
+ lbs_deb_assoc("ASSOC: channel: %d -> %d\n",
+ priv->curbssparams.channel, assoc_req->channel);
+
+ ret = lbs_set_channel(priv, assoc_req->channel);
+ if (ret < 0)
+ lbs_deb_assoc("ASSOC: channel: error setting channel.");
+
+ /* FIXME: shouldn't need to grab the channel _again_ after setting
+ * it since the firmware is supposed to return the new channel, but
+ * whatever... */
+ ret = update_channel(priv);
+ if (ret < 0)
+ lbs_deb_assoc("ASSOC: channel: error getting channel.");
+
+ if (assoc_req->channel != priv->curbssparams.channel) {
+ lbs_deb_assoc("ASSOC: channel: failed to update channel to %d\n",
+ assoc_req->channel);
+ goto restore_mesh;
+ }
+
+ if ( assoc_req->secinfo.wep_enabled
+ && (assoc_req->wep_keys[0].len
+ || assoc_req->wep_keys[1].len
+ || assoc_req->wep_keys[2].len
+ || assoc_req->wep_keys[3].len)) {
+ /* Make sure WEP keys are re-sent to firmware */
+ set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
+ }
+
+ /* Must restart/rejoin adhoc networks after channel change */
+ set_bit(ASSOC_FLAG_SSID, &assoc_req->flags);
+
+ restore_mesh:
+ if (priv->mesh_dev)
+ lbs_mesh_config(priv, 1);
+
+ done:
+ lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
+ return ret;
+}
+
+
+static int assoc_helper_wep_keys(struct lbs_private *priv,
+ struct assoc_request * assoc_req)
+{
+ int i;
+ int ret = 0;
+
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ /* Set or remove WEP keys */
+ if ( assoc_req->wep_keys[0].len
+ || assoc_req->wep_keys[1].len
+ || assoc_req->wep_keys[2].len
+ || assoc_req->wep_keys[3].len) {
+ ret = lbs_prepare_and_send_command(priv,
+ CMD_802_11_SET_WEP,
+ CMD_ACT_ADD,
+ CMD_OPTION_WAITFORRSP,
+ 0, assoc_req);
+ } else {
+ ret = lbs_prepare_and_send_command(priv,
+ CMD_802_11_SET_WEP,
+ CMD_ACT_REMOVE,
+ CMD_OPTION_WAITFORRSP,
+ 0, NULL);
+ }
+
+ if (ret)
+ goto out;
+
+ /* enable/disable the MAC's WEP packet filter */
+ if (assoc_req->secinfo.wep_enabled)
+ priv->currentpacketfilter |= CMD_ACT_MAC_WEP_ENABLE;
+ else
+ priv->currentpacketfilter &= ~CMD_ACT_MAC_WEP_ENABLE;
+ ret = lbs_set_mac_packet_filter(priv);
+ if (ret)
+ goto out;
+
+ mutex_lock(&priv->lock);
+
+ /* Copy WEP keys into priv wep key fields */
+ for (i = 0; i < 4; i++) {
+ memcpy(&priv->wep_keys[i], &assoc_req->wep_keys[i],
+ sizeof(struct enc_key));
+ }
+ priv->wep_tx_keyidx = assoc_req->wep_tx_keyidx;
+
+ mutex_unlock(&priv->lock);
+
+out:
+ lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
+ return ret;
+}
+
+static int assoc_helper_secinfo(struct lbs_private *priv,
+ struct assoc_request * assoc_req)
+{
+ int ret = 0;
+ u32 do_wpa;
+ u32 rsn = 0;
+
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ memcpy(&priv->secinfo, &assoc_req->secinfo,
+ sizeof(struct lbs_802_11_security));
+
+ ret = lbs_set_mac_packet_filter(priv);
+ if (ret)
+ goto out;
+
+ /* If RSN is already enabled, don't try to enable it again, since
+ * ENABLE_RSN resets internal state machines and will clobber the
+ * 4-way WPA handshake.
+ */
+
+ /* Get RSN enabled/disabled */
+ ret = lbs_prepare_and_send_command(priv,
+ CMD_802_11_ENABLE_RSN,
+ CMD_ACT_GET,
+ CMD_OPTION_WAITFORRSP,
+ 0, &rsn);
+ if (ret) {
+ lbs_deb_assoc("Failed to get RSN status: %d", ret);
+ goto out;
+ }
+
+ /* Don't re-enable RSN if it's already enabled */
+ do_wpa = (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled);
+ if (do_wpa == rsn)
+ goto out;
+
+ /* Set RSN enabled/disabled */
+ rsn = do_wpa;
+ ret = lbs_prepare_and_send_command(priv,
+ CMD_802_11_ENABLE_RSN,
+ CMD_ACT_SET,
+ CMD_OPTION_WAITFORRSP,
+ 0, &rsn);
+
+out:
+ lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
+ return ret;
+}
+
+
+static int assoc_helper_wpa_keys(struct lbs_private *priv,
+ struct assoc_request * assoc_req)
+{
+ int ret = 0;
+ unsigned int flags = assoc_req->flags;
+
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ /* Work around older firmware bug where WPA unicast and multicast
+ * keys must be set independently. Seen in SDIO parts with firmware
+ * version 5.0.11p0.
+ */
+
+ if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
+ clear_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags);
+ ret = lbs_prepare_and_send_command(priv,
+ CMD_802_11_KEY_MATERIAL,
+ CMD_ACT_SET,
+ CMD_OPTION_WAITFORRSP,
+ 0, assoc_req);
+ assoc_req->flags = flags;
+ }
+
+ if (ret)
+ goto out;
+
+ if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
+ clear_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags);
+
+ ret = lbs_prepare_and_send_command(priv,
+ CMD_802_11_KEY_MATERIAL,
+ CMD_ACT_SET,
+ CMD_OPTION_WAITFORRSP,
+ 0, assoc_req);
+ assoc_req->flags = flags;
+ }
+
+out:
+ lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
+ return ret;
+}
+
+
+static int assoc_helper_wpa_ie(struct lbs_private *priv,
+ struct assoc_request * assoc_req)
+{
+ int ret = 0;
+
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
+ memcpy(&priv->wpa_ie, &assoc_req->wpa_ie, assoc_req->wpa_ie_len);
+ priv->wpa_ie_len = assoc_req->wpa_ie_len;
+ } else {
+ memset(&priv->wpa_ie, 0, MAX_WPA_IE_LEN);
+ priv->wpa_ie_len = 0;
+ }
+
+ lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
+ return ret;
+}
+
+
+static int should_deauth_infrastructure(struct lbs_private *priv,
+ struct assoc_request * assoc_req)
+{
+ int ret = 0;
+
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ if (priv->connect_status != LBS_CONNECTED)
+ return 0;
+
+ if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
+ lbs_deb_assoc("Deauthenticating due to new SSID\n");
+ ret = 1;
+ goto out;
+ }
+
+ if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
+ if (priv->secinfo.auth_mode != assoc_req->secinfo.auth_mode) {
+ lbs_deb_assoc("Deauthenticating due to new security\n");
+ ret = 1;
+ goto out;
+ }
+ }
+
+ if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
+ lbs_deb_assoc("Deauthenticating due to new BSSID\n");
+ ret = 1;
+ goto out;
+ }
+
+ if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
+ lbs_deb_assoc("Deauthenticating due to channel switch\n");
+ ret = 1;
+ goto out;
+ }
+
+ /* FIXME: deal with 'auto' mode somehow */
+ if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
+ if (assoc_req->mode != IW_MODE_INFRA) {
+ lbs_deb_assoc("Deauthenticating due to leaving "
+ "infra mode\n");
+ ret = 1;
+ goto out;
+ }
+ }
+
+out:
+ lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
+ return 0;
+}
+
+
+static int should_stop_adhoc(struct lbs_private *priv,
+ struct assoc_request * assoc_req)
+{
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ if (priv->connect_status != LBS_CONNECTED)
+ return 0;
+
+ if (lbs_ssid_cmp(priv->curbssparams.ssid,
+ priv->curbssparams.ssid_len,
+ assoc_req->ssid, assoc_req->ssid_len) != 0)
+ return 1;
+
+ /* FIXME: deal with 'auto' mode somehow */
+ if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
+ if (assoc_req->mode != IW_MODE_ADHOC)
+ return 1;
+ }
+
+ if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
+ if (assoc_req->channel != priv->curbssparams.channel)
+ return 1;
+ }
+
+ lbs_deb_leave(LBS_DEB_ASSOC);
+ return 0;
+}
+
+
+void lbs_association_worker(struct work_struct *work)
+{
+ struct lbs_private *priv = container_of(work, struct lbs_private,
+ assoc_work.work);
+ struct assoc_request * assoc_req = NULL;
+ int ret = 0;
+ int find_any_ssid = 0;
+ DECLARE_MAC_BUF(mac);
+
+ lbs_deb_enter(LBS_DEB_ASSOC);
+
+ mutex_lock(&priv->lock);
+ assoc_req = priv->pending_assoc_req;
+ priv->pending_assoc_req = NULL;
+ priv->in_progress_assoc_req = assoc_req;
+ mutex_unlock(&priv->lock);
+
+ if (!assoc_req)
+ goto done;
+
+ lbs_deb_assoc(
+ "Association Request:\n"
+ " flags: 0x%08lx\n"
+ " SSID: '%s'\n"
+ " chann: %d\n"
+ " band: %d\n"
+ " mode: %d\n"
+ " BSSID: %s\n"
+ " secinfo: %s%s%s\n"
+ " auth_mode: %d\n",
+ assoc_req->flags,
+ escape_essid(assoc_req->ssid, assoc_req->ssid_len),
+ assoc_req->channel, assoc_req->band, assoc_req->mode,
+ print_mac(mac, assoc_req->bssid),
+ assoc_req->secinfo.WPAenabled ? " WPA" : "",
+ assoc_req->secinfo.WPA2enabled ? " WPA2" : "",
+ assoc_req->secinfo.wep_enabled ? " WEP" : "",
+ assoc_req->secinfo.auth_mode);
+
+ /* If 'any' SSID was specified, find an SSID to associate with */
+ if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)
+ && !assoc_req->ssid_len)
+ find_any_ssid = 1;
+
+ /* But don't use 'any' SSID if there's a valid locked BSSID to use */
+ if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
+ if (compare_ether_addr(assoc_req->bssid, bssid_any)
+ && compare_ether_addr(assoc_req->bssid, bssid_off))
+ find_any_ssid = 0;
+ }
+
+ if (find_any_ssid) {
+ u8 new_mode;
+
+ ret = lbs_find_best_network_ssid(priv, assoc_req->ssid,
+ &assoc_req->ssid_len, assoc_req->mode, &new_mode);
+ if (ret) {
+ lbs_deb_assoc("Could not find best network\n");
+ ret = -ENETUNREACH;
+ goto out;
+ }
+
+ /* Ensure we switch to the mode of the AP */
+ if (assoc_req->mode == IW_MODE_AUTO) {
+ set_bit(ASSOC_FLAG_MODE, &assoc_req->flags);
+ assoc_req->mode = new_mode;
+ }
+ }
+
+ /*
+ * Check if the attributes being changing require deauthentication
+ * from the currently associated infrastructure access point.
+ */
+ if (priv->mode == IW_MODE_INFRA) {
+ if (should_deauth_infrastructure(priv, assoc_req)) {
+ ret = lbs_send_deauthentication(priv);
+ if (ret) {
+ lbs_deb_assoc("Deauthentication due to new "
+ "configuration request failed: %d\n",
+ ret);
+ }
+ }
+ } else if (priv->mode == IW_MODE_ADHOC) {
+ if (should_stop_adhoc(priv, assoc_req)) {
+ ret = lbs_stop_adhoc_network(priv);
+ if (ret) {
+ lbs_deb_assoc("Teardown of AdHoc network due to "
+ "new configuration request failed: %d\n",
+ ret);
+ }
+
+ }
+ }
+
+ /* Send the various configuration bits to the firmware */
+ if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
+ ret = assoc_helper_mode(priv, assoc_req);
+ if (ret)
+ goto out;
+ }
+
+ if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
+ ret = assoc_helper_channel(priv, assoc_req);
+ if (ret)
+ goto out;
+ }
+
+ if ( test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)
+ || test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags)) {
+ ret = assoc_helper_wep_keys(priv, assoc_req);
+ if (ret)
+ goto out;
+ }
+
+ if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
+ ret = assoc_helper_secinfo(priv, assoc_req);
+ if (ret)
+ goto out;
+ }
+
+ if (test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
+ ret = assoc_helper_wpa_ie(priv, assoc_req);
+ if (ret)
+ goto out;
+ }
+
+ if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)
+ || test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
+ ret = assoc_helper_wpa_keys(priv, assoc_req);
+ if (ret)
+ goto out;
+ }
+
+ /* SSID/BSSID should be the _last_ config option set, because they
+ * trigger the association attempt.
+ */
+ if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)
+ || test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
+ int success = 1;
+
+ ret = assoc_helper_associate(priv, assoc_req);
+ if (ret) {
+ lbs_deb_assoc("ASSOC: association unsuccessful: %d\n",
+ ret);
+ success = 0;
+ }
+
+ if (priv->connect_status != LBS_CONNECTED) {
+ lbs_deb_assoc("ASSOC: association unsuccessful, "
+ "not connected\n");
+ success = 0;
+ }
+
+ if (success) {
+ lbs_deb_assoc("ASSOC: associated to '%s', %s\n",
+ escape_essid(priv->curbssparams.ssid,
+ priv->curbssparams.ssid_len),
+ print_mac(mac, priv->curbssparams.bssid));
+ lbs_prepare_and_send_command(priv,
+ CMD_802_11_RSSI,
+ 0, CMD_OPTION_WAITFORRSP, 0, NULL);
+
+ lbs_prepare_and_send_command(priv,
+ CMD_802_11_GET_LOG,
+ 0, CMD_OPTION_WAITFORRSP, 0, NULL);
+ } else {
+ ret = -1;
+ }
+ }
+
+out:
+ if (ret) {
+ lbs_deb_assoc("ASSOC: reconfiguration attempt unsuccessful: %d\n",
+ ret);
+ }
+
+ mutex_lock(&priv->lock);
+ priv->in_progress_assoc_req = NULL;
+ mutex_unlock(&priv->lock);
+ kfree(assoc_req);
+
+done:
+ lbs_deb_leave(LBS_DEB_ASSOC);
+}
+
+
+/*
+ * Caller MUST hold any necessary locks
+ */
+struct assoc_request *lbs_get_association_request(struct lbs_private *priv)
+{
+ struct assoc_request * assoc_req;
+
+ lbs_deb_enter(LBS_DEB_ASSOC);
+ if (!priv->pending_assoc_req) {
+ priv->pending_assoc_req = kzalloc(sizeof(struct assoc_request),
+ GFP_KERNEL);
+ if (!priv->pending_assoc_req) {
+ lbs_pr_info("Not enough memory to allocate association"
+ " request!\n");
+ return NULL;
+ }
+ }
+
+ /* Copy current configuration attributes to the association request,
+ * but don't overwrite any that are already set.
+ */
+ assoc_req = priv->pending_assoc_req;
+ if (!test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
+ memcpy(&assoc_req->ssid, &priv->curbssparams.ssid,
+ IW_ESSID_MAX_SIZE);
+ assoc_req->ssid_len = priv->curbssparams.ssid_len;
+ }
+
+ if (!test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
+ assoc_req->channel = priv->curbssparams.channel;
+
+ if (!test_bit(ASSOC_FLAG_BAND, &assoc_req->flags))
+ assoc_req->band = priv->curbssparams.band;
+
+ if (!test_bit(ASSOC_FLAG_MODE, &assoc_req->flags))
+ assoc_req->mode = priv->mode;
+
+ if (!test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
+ memcpy(&assoc_req->bssid, priv->curbssparams.bssid,
+ ETH_ALEN);
+ }
+
+ if (!test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)) {
+ int i;
+ for (i = 0; i < 4; i++) {
+ memcpy(&assoc_req->wep_keys[i], &priv->wep_keys[i],
+ sizeof(struct enc_key));
+ }
+ }
+
+ if (!test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags))
+ assoc_req->wep_tx_keyidx = priv->wep_tx_keyidx;
+
+ if (!test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
+ memcpy(&assoc_req->wpa_mcast_key, &priv->wpa_mcast_key,
+ sizeof(struct enc_key));
+ }
+
+ if (!test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
+ memcpy(&assoc_req->wpa_unicast_key, &priv->wpa_unicast_key,
+ sizeof(struct enc_key));
+ }
+
+ if (!test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
+ memcpy(&assoc_req->secinfo, &priv->secinfo,
+ sizeof(struct lbs_802_11_security));
+ }
+
+ if (!test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
+ memcpy(&assoc_req->wpa_ie, &priv->wpa_ie,
+ MAX_WPA_IE_LEN);
+ assoc_req->wpa_ie_len = priv->wpa_ie_len;
+ }
+
+ lbs_deb_leave(LBS_DEB_ASSOC);
+ return assoc_req;
+}
projects / openwrt / staging / florian.git / blobdiff