mwifiex: add custom IE framework
1. support for setting custom IE from application hostapd etc.
Custom IE addition using auto-indexing and Custom IE deletion using
static indices (which are allocated during IE addition and stored in
driver) are supported.
2. Separate file for handling IE related execution.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/mwifiex/Makefile b/drivers/net/wireless/mwifiex/Makefile
index 3ec71ae..3f66ebb 100644
--- a/drivers/net/wireless/mwifiex/Makefile
+++ b/drivers/net/wireless/mwifiex/Makefile
@@ -30,6 +30,7 @@
mwifiex-y += sta_ioctl.o
mwifiex-y += sta_cmd.o
mwifiex-y += uap_cmd.o
+mwifiex-y += ie.o
mwifiex-y += sta_cmdresp.o
mwifiex-y += sta_event.o
mwifiex-y += sta_tx.o
diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index 4fd7a05..0cb2b0c 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -94,6 +94,9 @@
#define CAL_SNR(RSSI, NF) ((s16)((s16)(RSSI)-(s16)(NF)))
#define UAP_BSS_PARAMS_I 0
+#define UAP_CUSTOM_IE_I 1
+#define MWIFIEX_AUTO_IDX_MASK 0xffff
+#define MWIFIEX_DELETE_MASK 0x0000
#define TLV_TYPE_UAP_SSID 0x0000
@@ -1299,6 +1302,20 @@
__le16 events;
} __packed;
+struct mwifiex_ie {
+ __le16 ie_index;
+ __le16 mgmt_subtype_mask;
+ __le16 ie_length;
+ u8 ie_buffer[IEEE_MAX_IE_SIZE];
+} __packed;
+
+#define MAX_MGMT_IE_INDEX 16
+struct mwifiex_ie_list {
+ __le16 type;
+ __le16 len;
+ struct mwifiex_ie ie_list[MAX_MGMT_IE_INDEX];
+} __packed;
+
struct host_cmd_ds_command {
__le16 command;
__le16 size;
diff --git a/drivers/net/wireless/mwifiex/ie.c b/drivers/net/wireless/mwifiex/ie.c
new file mode 100644
index 0000000..772bf3e
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/ie.c
@@ -0,0 +1,149 @@
+/*
+ * Marvell Wireless LAN device driver: management IE handling- setting and
+ * deleting IE.
+ *
+ * Copyright (C) 2012, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License"). You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include "main.h"
+
+/* This function checks if current IE index is used by any on other interface.
+ * Return: -1: yes, current IE index is used by someone else.
+ * 0: no, current IE index is NOT used by other interface.
+ */
+static int
+mwifiex_ie_index_used_by_other_intf(struct mwifiex_private *priv, u16 idx)
+{
+ int i;
+ struct mwifiex_adapter *adapter = priv->adapter;
+ struct mwifiex_ie *ie;
+
+ for (i = 0; i < adapter->priv_num; i++) {
+ if (adapter->priv[i] != priv) {
+ ie = &adapter->priv[i]->mgmt_ie[idx];
+ if (ie->mgmt_subtype_mask && ie->ie_length)
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+/* Get unused IE index. This index will be used for setting new IE */
+static int
+mwifiex_ie_get_autoidx(struct mwifiex_private *priv, u16 subtype_mask,
+ struct mwifiex_ie *ie, u16 *index)
+{
+ u16 mask, len, i;
+
+ for (i = 0; i < priv->adapter->max_mgmt_ie_index; i++) {
+ mask = le16_to_cpu(priv->mgmt_ie[i].mgmt_subtype_mask);
+ len = le16_to_cpu(priv->mgmt_ie[i].ie_length) +
+ le16_to_cpu(ie->ie_length);
+
+ if (mask == MWIFIEX_AUTO_IDX_MASK)
+ continue;
+
+ if (mask == subtype_mask) {
+ if (len > IEEE_MAX_IE_SIZE)
+ continue;
+
+ *index = i;
+ return 0;
+ }
+
+ if (!priv->mgmt_ie[i].ie_length) {
+ if (mwifiex_ie_index_used_by_other_intf(priv, i))
+ continue;
+
+ *index = i;
+ return 0;
+ }
+ }
+
+ return -1;
+}
+
+/* This function prepares IE data buffer for command to be sent to FW */
+static int
+mwifiex_update_autoindex_ies(struct mwifiex_private *priv,
+ struct mwifiex_ie_list *ie_list)
+{
+ u16 travel_len, index, mask;
+ s16 input_len;
+ struct mwifiex_ie *ie;
+ u8 *tmp;
+
+ input_len = le16_to_cpu(ie_list->len);
+ travel_len = sizeof(struct host_cmd_tlv);
+
+ ie_list->len = 0;
+
+ while (input_len > 0) {
+ ie = (struct mwifiex_ie *)(((u8 *)ie_list) + travel_len);
+ input_len -= le16_to_cpu(ie->ie_length) + MWIFIEX_IE_HDR_SIZE;
+ travel_len += le16_to_cpu(ie->ie_length) + MWIFIEX_IE_HDR_SIZE;
+
+ index = le16_to_cpu(ie->ie_index);
+ mask = le16_to_cpu(ie->mgmt_subtype_mask);
+
+ if (index == MWIFIEX_AUTO_IDX_MASK) {
+ /* automatic addition */
+ if (mwifiex_ie_get_autoidx(priv, mask, ie, &index))
+ return -1;
+ if (index == MWIFIEX_AUTO_IDX_MASK)
+ return -1;
+
+ tmp = (u8 *)&priv->mgmt_ie[index].ie_buffer;
+ tmp += le16_to_cpu(priv->mgmt_ie[index].ie_length);
+ memcpy(tmp, &ie->ie_buffer, le16_to_cpu(ie->ie_length));
+ le16_add_cpu(&priv->mgmt_ie[index].ie_length,
+ le16_to_cpu(ie->ie_length));
+ priv->mgmt_ie[index].ie_index = cpu_to_le16(index);
+ priv->mgmt_ie[index].mgmt_subtype_mask =
+ cpu_to_le16(mask);
+
+ ie->ie_index = cpu_to_le16(index);
+ ie->ie_length = priv->mgmt_ie[index].ie_length;
+ memcpy(&ie->ie_buffer, &priv->mgmt_ie[index].ie_buffer,
+ le16_to_cpu(priv->mgmt_ie[index].ie_length));
+ } else {
+ if (mask != MWIFIEX_DELETE_MASK)
+ return -1;
+ /*
+ * Check if this index is being used on any
+ * other interface.
+ */
+ if (mwifiex_ie_index_used_by_other_intf(priv, index))
+ return -1;
+
+ ie->ie_length = 0;
+ memcpy(&priv->mgmt_ie[index], ie,
+ sizeof(struct mwifiex_ie));
+ }
+
+ le16_add_cpu(&ie_list->len,
+ le16_to_cpu(priv->mgmt_ie[index].ie_length) +
+ MWIFIEX_IE_HDR_SIZE);
+ }
+
+ if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
+ return mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
+ HostCmd_ACT_GEN_SET,
+ UAP_CUSTOM_IE_I, ie_list);
+
+ return 0;
+}
diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index d440c3e..c1cb004 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -279,6 +279,7 @@
memset(&adapter->arp_filter, 0, sizeof(adapter->arp_filter));
adapter->arp_filter_size = 0;
adapter->channel_type = NL80211_CHAN_HT20;
+ adapter->max_mgmt_ie_index = MAX_MGMT_IE_INDEX;
}
/*
diff --git a/drivers/net/wireless/mwifiex/ioctl.h b/drivers/net/wireless/mwifiex/ioctl.h
index eb14f55..e6be6ee 100644
--- a/drivers/net/wireless/mwifiex/ioctl.h
+++ b/drivers/net/wireless/mwifiex/ioctl.h
@@ -299,6 +299,8 @@
#define IEEE_MAX_IE_SIZE 256
+#define MWIFIEX_IE_HDR_SIZE (sizeof(struct mwifiex_ie) - IEEE_MAX_IE_SIZE)
+
struct mwifiex_ds_misc_gen_ie {
u32 type;
u32 len;
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 43e4efa..49598e6 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -640,6 +640,8 @@
priv->current_key_index = 0;
priv->media_connected = false;
memset(&priv->nick_name, 0, sizeof(priv->nick_name));
+ memset(priv->mgmt_ie, 0,
+ sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX);
priv->num_tx_timeout = 0;
memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN);
}
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 824bd43..988d31d 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -477,6 +477,7 @@
s32 cqm_rssi_thold;
u32 cqm_rssi_hyst;
u8 subsc_evt_rssi_state;
+ struct mwifiex_ie mgmt_ie[MAX_MGMT_IE_INDEX];
};
enum mwifiex_ba_status {
@@ -680,6 +681,7 @@
spinlock_t queue_lock; /* lock for tx queues */
struct completion fw_load;
u8 country_code[IEEE80211_COUNTRY_STRING_LEN];
+ u16 max_mgmt_ie_index;
};
int mwifiex_init_lock_list(struct mwifiex_adapter *adapter);
diff --git a/drivers/net/wireless/mwifiex/uap_cmd.c b/drivers/net/wireless/mwifiex/uap_cmd.c
index e43bcaa..76dfbc4 100644
--- a/drivers/net/wireless/mwifiex/uap_cmd.c
+++ b/drivers/net/wireless/mwifiex/uap_cmd.c
@@ -315,6 +315,26 @@
return 0;
}
+/* This function parses custom IEs from IE list and prepares command buffer */
+static int mwifiex_uap_custom_ie_prepare(u8 *tlv, void *cmd_buf, u16 *ie_size)
+{
+ struct mwifiex_ie_list *ap_ie = cmd_buf;
+ struct host_cmd_tlv *tlv_ie = (struct host_cmd_tlv *)tlv;
+
+ if (!ap_ie || !ap_ie->len || !ap_ie->ie_list)
+ return -1;
+
+ *ie_size += le16_to_cpu(ap_ie->len) + sizeof(struct host_cmd_tlv);
+
+ tlv_ie->type = cpu_to_le16(TLV_TYPE_MGMT_IE);
+ tlv_ie->len = ap_ie->len;
+ tlv += sizeof(struct host_cmd_tlv);
+
+ memcpy(tlv, ap_ie->ie_list, le16_to_cpu(ap_ie->len));
+
+ return 0;
+}
+
/* Parse AP config structure and prepare TLV based command structure
* to be sent to FW for uAP configuration
*/
@@ -323,7 +343,7 @@
u32 type, void *cmd_buf)
{
u8 *tlv;
- u16 cmd_size, param_size;
+ u16 cmd_size, param_size, ie_size;
struct host_cmd_ds_sys_config *sys_cfg;
cmd->command = cpu_to_le16(HostCmd_CMD_UAP_SYS_CONFIG);
@@ -339,6 +359,12 @@
return -1;
cmd->size = cpu_to_le16(param_size);
break;
+ case UAP_CUSTOM_IE_I:
+ ie_size = cmd_size;
+ if (mwifiex_uap_custom_ie_prepare(tlv, cmd_buf, &ie_size))
+ return -1;
+ cmd->size = cpu_to_le16(ie_size);
+ break;
default:
return -1;
}