#define IEEE80211_STYPE_CFACK 0x0050
#define IEEE80211_STYPE_CFPOLL 0x0060
#define IEEE80211_STYPE_CFACKPOLL 0x0070
+#define IEEE80211_STYPE_QOS_DATA 0x0080
#define IEEE80211_SCTL_FRAG 0x000F
#define IEEE80211_SCTL_SEQ 0xFFF0
#define IEEE80211_DL_TX (1<<8)
#define IEEE80211_DL_RX (1<<9)
+#define IEEE80211_DL_QOS (1<<31)
#define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
#define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
#define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
#define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
#define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
+#define IEEE80211_DEBUG_QOS(f, a...) IEEE80211_DEBUG(IEEE80211_DL_QOS, f, ## a)
#include <linux/netdevice.h>
#include <linux/wireless.h>
#include <linux/if_arp.h> /* ARPHRD_ETHER */
MFIE_TYPE_RSN = 48,
MFIE_TYPE_RATES_EX = 50,
MFIE_TYPE_GENERIC = 221,
+ MFIE_TYPE_QOS_PARAMETER = 222,
};
/* Minimal header; can be used for passing 802.11 frames with sufficient
u8 payload[0];
} __attribute__ ((packed));
+struct ieee80211_hdr_3addrqos {
+ u16 frame_ctl;
+ u16 duration_id;
+ u8 addr1[ETH_ALEN];
+ u8 addr2[ETH_ALEN];
+ u8 addr3[ETH_ALEN];
+ u16 seq_ctl;
+ u8 payload[0];
+ u16 qos_ctl;
+} __attribute__ ((packed));
+
+struct ieee80211_hdr_4addrqos {
+ u16 frame_ctl;
+ u16 duration_id;
+ u8 addr1[ETH_ALEN];
+ u8 addr2[ETH_ALEN];
+ u8 addr3[ETH_ALEN];
+ u16 seq_ctl;
+ u8 addr4[ETH_ALEN];
+ u8 payload[0];
+ u16 qos_ctl;
+} __attribute__ ((packed));
+
struct ieee80211_info_element {
u8 id;
u8 len;
#define MAX_WPA_IE_LEN 64
-#define NETWORK_EMPTY_ESSID (1<<0)
-#define NETWORK_HAS_OFDM (1<<1)
-#define NETWORK_HAS_CCK (1<<2)
+#define NETWORK_EMPTY_ESSID (1<<0)
+#define NETWORK_HAS_OFDM (1<<1)
+#define NETWORK_HAS_CCK (1<<2)
+
+/* QoS structure */
+#define NETWORK_HAS_QOS_PARAMETERS (1<<3)
+#define NETWORK_HAS_QOS_INFORMATION (1<<4)
+#define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | NETWORK_HAS_QOS_INFORMATION)
+
+#define QOS_QUEUE_NUM 4
+#define QOS_OUI_LEN 3
+#define QOS_OUI_TYPE 2
+#define QOS_ELEMENT_ID 221
+#define QOS_OUI_INFO_SUB_TYPE 0
+#define QOS_OUI_PARAM_SUB_TYPE 1
+#define QOS_VERSION_1 1
+#define QOS_AIFSN_MIN_VALUE 2
+
+struct ieee80211_qos_information_element {
+ u8 elementID;
+ u8 length;
+ u8 qui[QOS_OUI_LEN];
+ u8 qui_type;
+ u8 qui_subtype;
+ u8 version;
+ u8 ac_info;
+} __attribute__ ((packed));
+
+struct ieee80211_qos_ac_parameter {
+ u8 aci_aifsn;
+ u8 ecw_min_max;
+ u16 tx_op_limit;
+} __attribute__ ((packed));
+
+struct ieee80211_qos_parameter_info {
+ struct ieee80211_qos_information_element info_element;
+ u8 reserved;
+ struct ieee80211_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
+} __attribute__ ((packed));
+
+struct ieee80211_qos_parameters {
+ u16 cw_min[QOS_QUEUE_NUM];
+ u16 cw_max[QOS_QUEUE_NUM];
+ u8 aifs[QOS_QUEUE_NUM];
+ u8 flag[QOS_QUEUE_NUM];
+ u16 tx_op_limit[QOS_QUEUE_NUM];
+} __attribute__ ((packed));
+
+struct ieee80211_qos_data {
+ struct ieee80211_qos_parameters parameters;
+ int active;
+ int supported;
+ u8 param_count;
+ u8 old_param_count;
+};
+
+struct ieee80211_tim_parameters {
+ u8 tim_count;
+ u8 tim_period;
+} __attribute__ ((packed));
+
+/*******************************************************/
struct ieee80211_network {
/* These entries are used to identify a unique network */
u8 ssid[IW_ESSID_MAX_SIZE + 1];
u8 ssid_len;
+ struct ieee80211_qos_data qos_data;
+
/* These are network statistics */
struct ieee80211_rx_stats stats;
u16 capability;
size_t wpa_ie_len;
u8 rsn_ie[MAX_WPA_IE_LEN];
size_t rsn_ie_len;
+ struct ieee80211_tim_parameters tim;
struct list_head list;
};
void (*set_security) (struct net_device * dev,
struct ieee80211_security * sec);
int (*hard_start_xmit) (struct ieee80211_txb * txb,
- struct net_device * dev);
+ struct net_device * dev, int pri);
int (*reset_port) (struct net_device * dev);
int (*is_queue_full) (struct net_device * dev, int pri);
+ int (*handle_management) (struct net_device * dev,
+ struct ieee80211_network * network, u16 type);
+
/* Typical STA methods */
int (*handle_auth) (struct net_device * dev,
struct ieee80211_auth * auth);
extern inline int ieee80211_get_hdrlen(u16 fc)
{
int hdrlen = IEEE80211_3ADDR_LEN;
+ u16 stype = WLAN_FC_GET_STYPE(fc);
switch (WLAN_FC_GET_TYPE(fc)) {
case IEEE80211_FTYPE_DATA:
if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
hdrlen = IEEE80211_4ADDR_LEN;
+ if (stype & IEEE80211_STYPE_QOS_DATA)
+ hdrlen += 2;
break;
case IEEE80211_FTYPE_CTL:
switch (WLAN_FC_GET_STYPE(fc)) {
/* Nullfunc frames may have PS-bit set, so they must be passed to
* hostap_handle_sta_rx() before being dropped here. */
+
+ stype &= ~IEEE80211_STYPE_QOS_DATA;
+
if (stype != IEEE80211_STYPE_DATA &&
stype != IEEE80211_STYPE_DATA_CFACK &&
stype != IEEE80211_STYPE_DATA_CFPOLL &&
#define MGMT_FRAME_FIXED_PART_LENGTH 0x24
+static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
+
+/*
+* Make ther structure we read from the beacon packet has
+* the right values
+*/
+static int ieee80211_verify_qos_info(struct ieee80211_qos_information_element
+ *info_element, int sub_type)
+{
+
+ if (info_element->qui_subtype != sub_type)
+ return -1;
+ if (memcmp(info_element->qui, qos_oui, QOS_OUI_LEN))
+ return -1;
+ if (info_element->qui_type != QOS_OUI_TYPE)
+ return -1;
+ if (info_element->version != QOS_VERSION_1)
+ return -1;
+
+ return 0;
+}
+
+/*
+ * Parse a QoS parameter element
+ */
+static int ieee80211_read_qos_param_element(struct ieee80211_qos_parameter_info
+ *element_param, struct ieee80211_info_element
+ *info_element)
+{
+ int ret = 0;
+ u16 size = sizeof(struct ieee80211_qos_parameter_info) - 2;
+
+ if ((info_element == NULL) || (element_param == NULL))
+ return -1;
+
+ if (info_element->id == QOS_ELEMENT_ID && info_element->len == size) {
+ memcpy(element_param->info_element.qui, info_element->data,
+ info_element->len);
+ element_param->info_element.elementID = info_element->id;
+ element_param->info_element.length = info_element->len;
+ } else
+ ret = -1;
+ if (ret == 0)
+ ret = ieee80211_verify_qos_info(&element_param->info_element,
+ QOS_OUI_PARAM_SUB_TYPE);
+ return ret;
+}
+
+/*
+ * Parse a QoS information element
+ */
+static int ieee80211_read_qos_info_element(struct
+ ieee80211_qos_information_element
+ *element_info, struct ieee80211_info_element
+ *info_element)
+{
+ int ret = 0;
+ u16 size = sizeof(struct ieee80211_qos_information_element) - 2;
+
+ if (element_info == NULL)
+ return -1;
+ if (info_element == NULL)
+ return -1;
+
+ if ((info_element->id == QOS_ELEMENT_ID) && (info_element->len == size)) {
+ memcpy(element_info->qui, info_element->data,
+ info_element->len);
+ element_info->elementID = info_element->id;
+ element_info->length = info_element->len;
+ } else
+ ret = -1;
+
+ if (ret == 0)
+ ret = ieee80211_verify_qos_info(element_info,
+ QOS_OUI_INFO_SUB_TYPE);
+ return ret;
+}
+
+/*
+ * Write QoS parameters from the ac parameters.
+ */
+static int ieee80211_qos_convert_ac_to_parameters(struct
+ ieee80211_qos_parameter_info
+ *param_elm, struct
+ ieee80211_qos_parameters
+ *qos_param)
+{
+ int rc = 0;
+ int i;
+ struct ieee80211_qos_ac_parameter *ac_params;
+ u32 txop;
+ u8 cw_min;
+ u8 cw_max;
+
+ for (i = 0; i < QOS_QUEUE_NUM; i++) {
+ ac_params = &(param_elm->ac_params_record[i]);
+
+ qos_param->aifs[i] = (ac_params->aci_aifsn) & 0x0F;
+ qos_param->aifs[i] -= (qos_param->aifs[i] < 2) ? 0 : 2;
+
+ cw_min = ac_params->ecw_min_max & 0x0F;
+ qos_param->cw_min[i] = (u16) ((1 << cw_min) - 1);
+
+ cw_max = (ac_params->ecw_min_max & 0xF0) >> 4;
+ qos_param->cw_max[i] = (u16) ((1 << cw_max) - 1);
+
+ qos_param->flag[i] =
+ (ac_params->aci_aifsn & 0x10) ? 0x01 : 0x00;
+
+ txop = le16_to_cpu(ac_params->tx_op_limit) * 32;
+ qos_param->tx_op_limit[i] = (u16) txop;
+ }
+ return rc;
+}
+
+/*
+ * we have a generic data element which it may contain QoS information or
+ * parameters element. check the information element length to decide
+ * which type to read
+ */
+static int ieee80211_parse_qos_info_param_IE(struct ieee80211_info_element
+ *info_element,
+ struct ieee80211_network *network)
+{
+ int rc = 0;
+ struct ieee80211_qos_parameters *qos_param = NULL;
+ struct ieee80211_qos_information_element qos_info_element;
+
+ rc = ieee80211_read_qos_info_element(&qos_info_element, info_element);
+
+ if (rc == 0) {
+ network->qos_data.param_count = qos_info_element.ac_info & 0x0F;
+ network->flags |= NETWORK_HAS_QOS_INFORMATION;
+ } else {
+ struct ieee80211_qos_parameter_info param_element;
+
+ rc = ieee80211_read_qos_param_element(¶m_element,
+ info_element);
+ if (rc == 0) {
+ qos_param = &(network->qos_data.parameters);
+ ieee80211_qos_convert_ac_to_parameters(¶m_element,
+ qos_param);
+ network->flags |= NETWORK_HAS_QOS_PARAMETERS;
+ network->qos_data.param_count =
+ param_element.info_element.ac_info & 0x0F;
+ }
+ }
+
+ if (rc == 0) {
+ IEEE80211_DEBUG_QOS("QoS is supported\n");
+ network->qos_data.supported = 1;
+ }
+ return rc;
+}
+
+static int ieee80211_handle_assoc_resp(struct ieee80211_device *ieee, struct ieee80211_assoc_response
+ *frame, struct ieee80211_rx_stats *stats)
+{
+ struct ieee80211_network network_resp;
+ struct ieee80211_network *network = &network_resp;
+ struct ieee80211_info_element *info_element;
+ struct net_device *dev = ieee->dev;
+ u16 left;
+
+ network->flags = 0;
+ network->qos_data.active = 0;
+ network->qos_data.supported = 0;
+ network->qos_data.param_count = 0;
+ network->qos_data.old_param_count = 0;
+
+ //network->atim_window = le16_to_cpu(frame->aid) & (0x3FFF);
+ network->atim_window = le16_to_cpu(frame->aid);
+ network->listen_interval = le16_to_cpu(frame->status);
+
+ info_element = frame->info_element;
+ left = stats->len - sizeof(*frame);
+
+ while (left >= sizeof(struct ieee80211_info_element)) {
+ if (sizeof(struct ieee80211_info_element) +
+ info_element->len > left) {
+ IEEE80211_DEBUG_QOS("ASSOC RESP: parse failed: "
+ "info_element->len + 2 > left : "
+ "info_element->len+2=%zd left=%d, id=%d.\n",
+ info_element->len +
+ sizeof(struct
+ ieee80211_info_element),
+ left, info_element->id);
+ return 1;
+ }
+
+ switch (info_element->id) {
+ case MFIE_TYPE_SSID:
+ if (ieee80211_is_empty_essid(info_element->data,
+ info_element->len)) {
+ network->flags |= NETWORK_EMPTY_ESSID;
+ break;
+ }
+
+ network->ssid_len = min(info_element->len,
+ (u8) IW_ESSID_MAX_SIZE);
+ memcpy(network->ssid, info_element->data,
+ network->ssid_len);
+ if (network->ssid_len < IW_ESSID_MAX_SIZE)
+ memset(network->ssid + network->ssid_len, 0,
+ IW_ESSID_MAX_SIZE - network->ssid_len);
+
+ IEEE80211_DEBUG_QOS("MFIE_TYPE_SSID: '%s' len=%d.\n",
+ network->ssid, network->ssid_len);
+ break;
+
+ case MFIE_TYPE_TIM:
+ IEEE80211_DEBUG_QOS("MFIE_TYPE_TIM: ignored\n");
+ break;
+
+ case MFIE_TYPE_IBSS_SET:
+ IEEE80211_DEBUG_QOS("MFIE_TYPE_IBSS_SET: ignored\n");
+ break;
+
+ case MFIE_TYPE_CHALLENGE:
+ IEEE80211_DEBUG_QOS("MFIE_TYPE_CHALLENGE: ignored\n");
+ break;
+
+ case MFIE_TYPE_GENERIC:
+ IEEE80211_DEBUG_QOS("MFIE_TYPE_GENERIC: %d bytes\n",
+ info_element->len);
+ ieee80211_parse_qos_info_param_IE(info_element,
+ network);
+ break;
+
+ case MFIE_TYPE_RSN:
+ IEEE80211_DEBUG_QOS("MFIE_TYPE_RSN: %d bytes\n",
+ info_element->len);
+ break;
+
+ case MFIE_TYPE_QOS_PARAMETER:
+ printk("QoS Error need to parse QOS_PARAMETER IE\n");
+ break;
+
+ default:
+ IEEE80211_DEBUG_QOS("unsupported IE %d\n",
+ info_element->id);
+ break;
+ }
+
+ left -= sizeof(struct ieee80211_info_element) +
+ info_element->len;
+ info_element = (struct ieee80211_info_element *)
+ &info_element->data[info_element->len];
+ }
+
+ if (ieee->handle_assoc_response != NULL)
+ ieee->handle_assoc_response(dev, frame, network);
+
+ return 0;
+}
+
+/***************************************************/
+
static inline int ieee80211_is_ofdm_rate(u8 rate)
{
switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
struct ieee80211_info_element *info_element;
u16 left;
u8 i;
+ network->qos_data.active = 0;
+ network->qos_data.supported = 0;
+ network->qos_data.param_count = 0;
/* Pull out fixed field data */
memcpy(network->bssid, beacon->header.addr3, ETH_ALEN);
info_element = beacon->info_element;
left = stats->len - sizeof(*beacon);
- while (left >= sizeof(struct ieee80211_info_element)) {
- if (sizeof(struct ieee80211_info_element) + info_element->len >
- left) {
+ while (left >= sizeof(*info_element)) {
+ if (sizeof(*info_element) + info_element->len > left) {
IEEE80211_DEBUG_SCAN
("SCAN: parse failed: info_element->len + 2 > left : info_element->len+2=%Zd left=%d.\n",
- info_element->len +
- sizeof(struct ieee80211_info_element), left);
+ info_element->len + sizeof(*info_element), left);
return 1;
}
#ifdef CONFIG_IEEE80211_DEBUG
p = rates_str;
#endif
- network->rates_len =
- min(info_element->len, MAX_RATES_LENGTH);
+ network->rates_len = min(info_element->len,
+ MAX_RATES_LENGTH);
for (i = 0; i < network->rates_len; i++) {
network->rates[i] = info_element->data[i];
#ifdef CONFIG_IEEE80211_DEBUG
- p += snprintf(p,
- sizeof(rates_str) - (p -
- rates_str),
- "%02X ", network->rates[i]);
+ p += snprintf(p, sizeof(rates_str) -
+ (p - rates_str), "%02X ",
+ network->rates[i]);
#endif
if (ieee80211_is_ofdm_rate
(info_element->data[i])) {
#ifdef CONFIG_IEEE80211_DEBUG
p = rates_str;
#endif
- network->rates_ex_len =
- min(info_element->len, MAX_RATES_EX_LENGTH);
+ network->rates_ex_len = min(info_element->len,
+ MAX_RATES_EX_LENGTH);
for (i = 0; i < network->rates_ex_len; i++) {
network->rates_ex[i] = info_element->data[i];
#ifdef CONFIG_IEEE80211_DEBUG
- p += snprintf(p,
- sizeof(rates_str) - (p -
- rates_str),
- "%02X ", network->rates[i]);
+ p += snprintf(p, sizeof(rates_str) -
+ (p - rates_str), "%02X ",
+ network->rates[i]);
#endif
if (ieee80211_is_ofdm_rate
(info_element->data[i])) {
case MFIE_TYPE_GENERIC:
IEEE80211_DEBUG_SCAN("MFIE_TYPE_GENERIC: %d bytes\n",
info_element->len);
+ if (!ieee80211_parse_qos_info_param_IE(info_element,
+ network))
+ break;
+
if (info_element->len >= 4 &&
info_element->data[0] == 0x00 &&
info_element->data[1] == 0x50 &&
network->rsn_ie_len);
break;
+ case MFIE_TYPE_QOS_PARAMETER:
+ printk(KERN_ERR
+ "QoS Error need to parse QOS_PARAMETER IE\n");
+ break;
+
default:
IEEE80211_DEBUG_SCAN("unsupported IE %d\n",
info_element->id);
break;
}
- left -= sizeof(struct ieee80211_info_element) +
- info_element->len;
+ left -= sizeof(*info_element) + info_element->len;
info_element = (struct ieee80211_info_element *)
&info_element->data[info_element->len];
}
static inline void update_network(struct ieee80211_network *dst,
struct ieee80211_network *src)
{
+ int qos_active;
+ u8 old_param;
+
memcpy(&dst->stats, &src->stats, sizeof(struct ieee80211_rx_stats));
dst->capability = src->capability;
memcpy(dst->rates, src->rates, src->rates_len);
dst->rsn_ie_len = src->rsn_ie_len;
dst->last_scanned = jiffies;
+ qos_active = src->qos_data.active;
+ old_param = dst->qos_data.old_param_count;
+ if (dst->flags & NETWORK_HAS_QOS_MASK)
+ memcpy(&dst->qos_data, &src->qos_data,
+ sizeof(struct ieee80211_qos_data));
+ else {
+ dst->qos_data.supported = src->qos_data.supported;
+ dst->qos_data.param_count = src->qos_data.param_count;
+ }
+
+ if (dst->qos_data.supported == 1) {
+ if (dst->ssid_len)
+ IEEE80211_DEBUG_QOS
+ ("QoS the network %s is QoS supported\n",
+ dst->ssid);
+ else
+ IEEE80211_DEBUG_QOS
+ ("QoS the network is QoS supported\n");
+ }
+ dst->qos_data.active = qos_active;
+ dst->qos_data.old_param_count = old_param;
+
/* dst->last_associate is not overwritten */
}
IEEE80211_DEBUG_MGMT("received ASSOCIATION RESPONSE (%d)\n",
WLAN_FC_GET_STYPE(le16_to_cpu
(header->frame_ctl)));
+ ieee80211_handle_assoc_resp(ieee,
+ (struct ieee80211_assoc_response *)
+ header, stats);
break;
case IEEE80211_STYPE_REASSOC_RESP:
projects / linux-2.6 / commitdiff