Commit f31acabe authored by Avinash Patil's avatar Avinash Patil Committed by John W. Linville
Browse files

mwifiex: retrieve IEs from cfg80211_beacon_data and send to firmware



This patch adds logic for setting tail beacon IE, probe response IE
and assoc response IE from cfg80211_ap_settings parameter of
start_ap handler into FW.

RSN IE is also retrieved from tail IE buffer and sent to firmware.

Signed-off-by: default avatarAvinash Patil <patila@marvell.com>
Signed-off-by: default avatarKiran Divekar <dkiran@marvell.com>
Signed-off-by: default avatarBing Zhao <bzhao@marvell.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent ede98bfa
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+2 −0
Original line number Diff line number Diff line
@@ -952,6 +952,8 @@ static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,

	if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP)
		return -1;
	if (mwifiex_set_mgmt_ies(priv, params))
		return -1;

	bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
	if (!bss_cfg)
+7 −0
Original line number Diff line number Diff line
@@ -97,6 +97,13 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
#define UAP_CUSTOM_IE_I				1
#define MWIFIEX_AUTO_IDX_MASK			0xffff
#define MWIFIEX_DELETE_MASK			0x0000
#define MGMT_MASK_ASSOC_REQ			0x01
#define MGMT_MASK_REASSOC_REQ			0x04
#define MGMT_MASK_ASSOC_RESP			0x02
#define MGMT_MASK_REASSOC_RESP			0x08
#define MGMT_MASK_PROBE_REQ			0x10
#define MGMT_MASK_PROBE_RESP			0x20
#define MGMT_MASK_BEACON			0x100

#define TLV_TYPE_UAP_SSID			0x0000

+176 −0
Original line number Diff line number Diff line
@@ -147,3 +147,179 @@ mwifiex_update_autoindex_ies(struct mwifiex_private *priv,

	return 0;
}

/* Copy individual custom IEs for beacon, probe response and assoc response
 * and prepare single structure for IE setting.
 * This function also updates allocated IE indices from driver.
 */
static int
mwifiex_update_uap_custom_ie(struct mwifiex_private *priv,
			     struct mwifiex_ie *beacon_ie, u16 *beacon_idx,
			     struct mwifiex_ie *pr_ie, u16 *probe_idx,
			     struct mwifiex_ie *ar_ie, u16 *assoc_idx)
{
	struct mwifiex_ie_list *ap_custom_ie;
	u8 *pos;
	u16 len;
	int ret;

	ap_custom_ie = kzalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
	if (!ap_custom_ie)
		return -ENOMEM;

	ap_custom_ie->type = cpu_to_le16(TLV_TYPE_MGMT_IE);
	pos = (u8 *)ap_custom_ie->ie_list;

	if (beacon_ie) {
		len = sizeof(struct mwifiex_ie) - IEEE_MAX_IE_SIZE +
		      le16_to_cpu(beacon_ie->ie_length);
		memcpy(pos, beacon_ie, len);
		pos += len;
		le16_add_cpu(&ap_custom_ie->len, len);
	}
	if (pr_ie) {
		len = sizeof(struct mwifiex_ie) - IEEE_MAX_IE_SIZE +
		      le16_to_cpu(pr_ie->ie_length);
		memcpy(pos, pr_ie, len);
		pos += len;
		le16_add_cpu(&ap_custom_ie->len, len);
	}
	if (ar_ie) {
		len = sizeof(struct mwifiex_ie) - IEEE_MAX_IE_SIZE +
		      le16_to_cpu(ar_ie->ie_length);
		memcpy(pos, ar_ie, len);
		pos += len;
		le16_add_cpu(&ap_custom_ie->len, len);
	}

	ret = mwifiex_update_autoindex_ies(priv, ap_custom_ie);

	pos = (u8 *)(&ap_custom_ie->ie_list[0].ie_index);
	if (beacon_ie && *beacon_idx == MWIFIEX_AUTO_IDX_MASK) {
		/* save beacon ie index after auto-indexing */
		*beacon_idx = le16_to_cpu(ap_custom_ie->ie_list[0].ie_index);
		len = sizeof(*beacon_ie) - IEEE_MAX_IE_SIZE +
		      le16_to_cpu(beacon_ie->ie_length);
		pos += len;
	}
	if (pr_ie && le16_to_cpu(pr_ie->ie_index) == MWIFIEX_AUTO_IDX_MASK) {
		/* save probe resp ie index after auto-indexing */
		*probe_idx = *((u16 *)pos);
		len = sizeof(*pr_ie) - IEEE_MAX_IE_SIZE +
		      le16_to_cpu(pr_ie->ie_length);
		pos += len;
	}
	if (ar_ie && le16_to_cpu(ar_ie->ie_index) == MWIFIEX_AUTO_IDX_MASK)
		/* save assoc resp ie index after auto-indexing */
		*assoc_idx = *((u16 *)pos);

	return ret;
}

/* This function parses different IEs- Tail IEs, beacon IEs, probe response IEs,
 * association response IEs from cfg80211_ap_settings function and sets these IE
 * to FW.
 */
int mwifiex_set_mgmt_ies(struct mwifiex_private *priv,
			 struct cfg80211_ap_settings *params)
{
	struct mwifiex_ie *beacon_ie = NULL, *pr_ie = NULL;
	struct mwifiex_ie *ar_ie = NULL, *rsn_ie = NULL;
	struct ieee_types_header *ie = NULL;
	u16 beacon_idx = MWIFIEX_AUTO_IDX_MASK, pr_idx = MWIFIEX_AUTO_IDX_MASK;
	u16 ar_idx = MWIFIEX_AUTO_IDX_MASK, rsn_idx = MWIFIEX_AUTO_IDX_MASK;
	u16 mask;
	int ret = 0;

	if (params->beacon.tail && params->beacon.tail_len) {
		ie = (void *)cfg80211_find_ie(WLAN_EID_RSN, params->beacon.tail,
					      params->beacon.tail_len);
		if (ie) {
			rsn_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
			if (!rsn_ie)
				return -ENOMEM;

			rsn_ie->ie_index = cpu_to_le16(rsn_idx);
			mask = MGMT_MASK_BEACON | MGMT_MASK_PROBE_RESP |
			       MGMT_MASK_ASSOC_RESP;
			rsn_ie->mgmt_subtype_mask = cpu_to_le16(mask);
			rsn_ie->ie_length = cpu_to_le16(ie->len + 2);
			memcpy(rsn_ie->ie_buffer, ie, ie->len + 2);

			if (mwifiex_update_uap_custom_ie(priv, rsn_ie, &rsn_idx,
							 NULL, NULL,
							 NULL, NULL)) {
				ret = -1;
				goto done;
			}

			priv->rsn_idx = rsn_idx;
		}
	}

	if (params->beacon.beacon_ies && params->beacon.beacon_ies_len) {
		beacon_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
		if (!beacon_ie) {
			ret = -ENOMEM;
			goto done;
		}

		beacon_ie->ie_index = cpu_to_le16(beacon_idx);
		beacon_ie->mgmt_subtype_mask = cpu_to_le16(MGMT_MASK_BEACON);
		beacon_ie->ie_length =
				cpu_to_le16(params->beacon.beacon_ies_len);
		memcpy(beacon_ie->ie_buffer, params->beacon.beacon_ies,
		       params->beacon.beacon_ies_len);
	}

	if (params->beacon.proberesp_ies && params->beacon.proberesp_ies_len) {
		pr_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
		if (!pr_ie) {
			ret = -ENOMEM;
			goto done;
		}

		pr_ie->ie_index = cpu_to_le16(pr_idx);
		pr_ie->mgmt_subtype_mask = cpu_to_le16(MGMT_MASK_PROBE_RESP);
		pr_ie->ie_length =
				cpu_to_le16(params->beacon.proberesp_ies_len);
		memcpy(pr_ie->ie_buffer, params->beacon.proberesp_ies,
		       params->beacon.proberesp_ies_len);
	}

	if (params->beacon.assocresp_ies && params->beacon.assocresp_ies_len) {
		ar_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
		if (!ar_ie) {
			ret = -ENOMEM;
			goto done;
		}

		ar_ie->ie_index = cpu_to_le16(ar_idx);
		mask = MGMT_MASK_ASSOC_RESP | MGMT_MASK_REASSOC_RESP;
		ar_ie->mgmt_subtype_mask = cpu_to_le16(mask);
		ar_ie->ie_length =
				cpu_to_le16(params->beacon.assocresp_ies_len);
		memcpy(ar_ie->ie_buffer, params->beacon.assocresp_ies,
		       params->beacon.assocresp_ies_len);
	}

	if (beacon_ie || pr_ie || ar_ie) {
		ret = mwifiex_update_uap_custom_ie(priv, beacon_ie,
						   &beacon_idx, pr_ie,
						   &pr_idx, ar_ie, &ar_idx);
		if (ret)
			goto done;
	}

	priv->beacon_idx = beacon_idx;
	priv->proberesp_idx = pr_idx;
	priv->assocresp_idx = ar_idx;

done:
	kfree(beacon_ie);
	kfree(pr_ie);
	kfree(ar_ie);
	kfree(rsn_ie);

	return ret;
}
+4 −0
Original line number Diff line number Diff line
@@ -642,6 +642,10 @@ void mwifiex_init_priv_params(struct mwifiex_private *priv,
	memset(&priv->nick_name, 0, sizeof(priv->nick_name));
	memset(priv->mgmt_ie, 0,
	       sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX);
	priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK;
	priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK;
	priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK;
	priv->rsn_idx = MWIFIEX_AUTO_IDX_MASK;
	priv->num_tx_timeout = 0;
	memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN);
}
+6 −0
Original line number Diff line number Diff line
@@ -478,6 +478,10 @@ struct mwifiex_private {
	u32 cqm_rssi_hyst;
	u8 subsc_evt_rssi_state;
	struct mwifiex_ie mgmt_ie[MAX_MGMT_IE_INDEX];
	u16 beacon_idx;
	u16 proberesp_idx;
	u16 assocresp_idx;
	u16 rsn_idx;
};

enum mwifiex_ba_status {
@@ -1001,6 +1005,8 @@ int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct net_device *dev);

void mwifiex_set_sys_config_invalid_data(struct mwifiex_uap_bss_param *config);

int mwifiex_set_mgmt_ies(struct mwifiex_private *priv,
			 struct cfg80211_ap_settings *params);
u8 *mwifiex_11d_code_2_region(u8 code);

#ifdef CONFIG_DEBUG_FS