* published by the Free Software Foundation.
*/
-#ifndef IEEE80211_H
-#define IEEE80211_H
+#ifndef LINUX_IEEE80211_H
+#define LINUX_IEEE80211_H
#include <linux/types.h>
#include <asm/byteorder.h>
+/*
+ * DS bit usage
+ *
+ * TA = transmitter address
+ * RA = receiver address
+ * DA = destination address
+ * SA = source address
+ *
+ * ToDS FromDS A1(RA) A2(TA) A3 A4 Use
+ * -----------------------------------------------------------------
+ * 0 0 DA SA BSSID - IBSS/DLS
+ * 0 1 DA BSSID SA - AP -> STA
+ * 1 0 BSSID SA DA - AP <- STA
+ * 1 1 RA TA DA SA unspecified (WDS)
+ */
+
#define FCS_LEN 4
#define IEEE80211_FCTL_VERS 0x0003
#define IEEE80211_MAX_FRAME_LEN 2352
#define IEEE80211_MAX_SSID_LEN 32
+
#define IEEE80211_MAX_MESH_ID_LEN 32
+#define IEEE80211_QOS_CTL_LEN 2
+#define IEEE80211_QOS_CTL_TID_MASK 0x000F
+#define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
+
+/* U-APSD queue for WMM IEs sent by AP */
+#define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD (1<<7)
+
+/* U-APSD queues for WMM IEs sent by STA */
+#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO (1<<0)
+#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI (1<<1)
+#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK (1<<2)
+#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE (1<<3)
+#define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK 0x0f
+
+/* U-APSD max SP length for WMM IEs sent by STA */
+#define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0x00
+#define IEEE80211_WMM_IE_STA_QOSINFO_SP_2 0x01
+#define IEEE80211_WMM_IE_STA_QOSINFO_SP_4 0x02
+#define IEEE80211_WMM_IE_STA_QOSINFO_SP_6 0x03
+#define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK 0x03
+#define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT 5
+
+#define IEEE80211_HT_CTL_LEN 4
+
struct ieee80211_hdr {
__le16 frame_control;
__le16 duration_id;
u8 addr4[6];
} __attribute__ ((packed));
+struct ieee80211_hdr_3addr {
+ __le16 frame_control;
+ __le16 duration_id;
+ u8 addr1[6];
+ u8 addr2[6];
+ u8 addr3[6];
+ __le16 seq_ctrl;
+} __attribute__ ((packed));
+
+struct ieee80211_qos_hdr {
+ __le16 frame_control;
+ __le16 duration_id;
+ u8 addr1[6];
+ u8 addr2[6];
+ u8 addr3[6];
+ __le16 seq_ctrl;
+ __le16 qos_ctrl;
+} __attribute__ ((packed));
+
+/**
+ * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_has_tods(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
+}
+
+/**
+ * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_has_fromds(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
+}
+
+/**
+ * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_has_a4(__le16 fc)
+{
+ __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
+ return (fc & tmp) == tmp;
+}
+
+/**
+ * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_has_morefrags(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
+}
+
+/**
+ * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_has_retry(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
+}
+
+/**
+ * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_has_pm(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
+}
+
+/**
+ * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_has_moredata(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
+}
+
+/**
+ * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_has_protected(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
+}
+
+/**
+ * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_has_order(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
+}
+
+/**
+ * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_mgmt(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_MGMT);
+}
+
+/**
+ * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_ctl(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_CTL);
+}
+
+/**
+ * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_data(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_DATA);
+}
+
+/**
+ * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_data_qos(__le16 fc)
+{
+ /*
+ * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
+ * to check the one bit
+ */
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
+ cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
+}
+
+/**
+ * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_data_present(__le16 fc)
+{
+ /*
+ * mask with 0x40 and test that that bit is clear to only return true
+ * for the data-containing substypes.
+ */
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
+ cpu_to_le16(IEEE80211_FTYPE_DATA);
+}
+
+/**
+ * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_assoc_req(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
+}
+
+/**
+ * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_assoc_resp(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
+}
+
+/**
+ * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_reassoc_req(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
+}
+
+/**
+ * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_reassoc_resp(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
+}
+
+/**
+ * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_probe_req(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
+}
+
+/**
+ * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_probe_resp(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
+}
+
+/**
+ * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_beacon(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
+}
+
+/**
+ * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_atim(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
+}
+
+/**
+ * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_disassoc(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
+}
+
+/**
+ * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_auth(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
+}
+
+/**
+ * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_deauth(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
+}
+
+/**
+ * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_action(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
+}
+
+/**
+ * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_back_req(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
+}
+
+/**
+ * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_back(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
+}
+
+/**
+ * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_pspoll(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
+}
+
+/**
+ * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_rts(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
+}
+
+/**
+ * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_cts(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
+}
+
+/**
+ * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_ack(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
+}
+
+/**
+ * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_cfend(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
+}
+
+/**
+ * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_cfendack(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
+}
+
+/**
+ * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_nullfunc(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
+}
+
+/**
+ * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline int ieee80211_is_qos_nullfunc(__le16 fc)
+{
+ return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
+}
struct ieee80211s_hdr {
u8 flags;
u8 eaddr3[6];
} __attribute__ ((packed));
+/* Mesh flags */
+#define MESH_FLAGS_AE_A4 0x1
+#define MESH_FLAGS_AE_A5_A6 0x2
+#define MESH_FLAGS_AE 0x3
+#define MESH_FLAGS_PS_DEEP 0x4
+
+/**
+ * struct ieee80211_quiet_ie
+ *
+ * This structure refers to "Quiet information element"
+ */
+struct ieee80211_quiet_ie {
+ u8 count;
+ u8 period;
+ __le16 duration;
+ __le16 offset;
+} __attribute__ ((packed));
+
+/**
+ * struct ieee80211_msrment_ie
+ *
+ * This structure refers to "Measurement Request/Report information element"
+ */
+struct ieee80211_msrment_ie {
+ u8 token;
+ u8 mode;
+ u8 type;
+ u8 request[0];
+} __attribute__ ((packed));
+
+/**
+ * struct ieee80211_channel_sw_ie
+ *
+ * This structure refers to "Channel Switch Announcement information element"
+ */
+struct ieee80211_channel_sw_ie {
+ u8 mode;
+ u8 new_ch_num;
+ u8 count;
+} __attribute__ ((packed));
+
+/**
+ * struct ieee80211_tim
+ *
+ * This structure refers to "Traffic Indication Map information element"
+ */
+struct ieee80211_tim_ie {
+ u8 dtim_count;
+ u8 dtim_period;
+ u8 bitmap_ctrl;
+ /* variable size: 1 - 251 bytes */
+ u8 virtual_map[1];
+} __attribute__ ((packed));
+
+/**
+ * struct ieee80211_meshconf_ie
+ *
+ * This structure refers to "Mesh Configuration information element"
+ */
+struct ieee80211_meshconf_ie {
+ u8 meshconf_psel;
+ u8 meshconf_pmetric;
+ u8 meshconf_congest;
+ u8 meshconf_synch;
+ u8 meshconf_auth;
+ u8 meshconf_form;
+ u8 meshconf_cap;
+} __attribute__ ((packed));
+
+/**
+ * struct ieee80211_rann_ie
+ *
+ * This structure refers to "Root Announcement information element"
+ */
+struct ieee80211_rann_ie {
+ u8 rann_flags;
+ u8 rann_hopcount;
+ u8 rann_ttl;
+ u8 rann_addr[6];
+ u32 rann_seq;
+ u32 rann_metric;
+} __attribute__ ((packed));
+
+#define WLAN_SA_QUERY_TR_ID_LEN 2
struct ieee80211_mgmt {
__le16 frame_control;
u8 action_code;
u8 element_id;
u8 length;
- u8 switch_mode;
- u8 new_chan;
- u8 switch_count;
+ struct ieee80211_channel_sw_ie sw_elem;
} __attribute__((packed)) chan_switch;
struct{
u8 action_code;
u8 dialog_token;
+ u8 element_id;
+ u8 length;
+ struct ieee80211_msrment_ie msr_elem;
+ } __attribute__((packed)) measurement;
+ struct{
+ u8 action_code;
+ u8 dialog_token;
__le16 capab;
__le16 timeout;
__le16 start_seq_num;
u8 action_code;
u8 variable[0];
} __attribute__((packed)) mesh_action;
+ struct {
+ u8 action;
+ u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
+ } __attribute__ ((packed)) sa_query;
+ struct {
+ u8 action;
+ u8 smps_control;
+ } __attribute__ ((packed)) ht_smps;
} u;
} __attribute__ ((packed)) action;
} u;
} __attribute__ ((packed));
+/* mgmt header + 1 byte category code */
+#define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
+
+
+/* Management MIC information element (IEEE 802.11w) */
+struct ieee80211_mmie {
+ u8 element_id;
+ u8 length;
+ __le16 key_id;
+ u8 sequence_number[6];
+ u8 mic[8];
+} __attribute__ ((packed));
/* Control frames */
struct ieee80211_rts {
u8 ra[6];
} __attribute__ ((packed));
+struct ieee80211_pspoll {
+ __le16 frame_control;
+ __le16 aid;
+ u8 bssid[6];
+ u8 ta[6];
+} __attribute__ ((packed));
+
/**
* struct ieee80211_bar - HT Block Ack Request
*
__le16 start_seq_num;
} __attribute__((packed));
+/* 802.11 BAR control masks */
+#define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000
+#define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
+
+
+#define IEEE80211_HT_MCS_MASK_LEN 10
+
+/**
+ * struct ieee80211_mcs_info - MCS information
+ * @rx_mask: RX mask
+ * @rx_highest: highest supported RX rate. If set represents
+ * the highest supported RX data rate in units of 1 Mbps.
+ * If this field is 0 this value should not be used to
+ * consider the highest RX data rate supported.
+ * @tx_params: TX parameters
+ */
+struct ieee80211_mcs_info {
+ u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
+ __le16 rx_highest;
+ u8 tx_params;
+ u8 reserved[3];
+} __attribute__((packed));
+
+/* 802.11n HT capability MSC set */
+#define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
+#define IEEE80211_HT_MCS_TX_DEFINED 0x01
+#define IEEE80211_HT_MCS_TX_RX_DIFF 0x02
+/* value 0 == 1 stream etc */
+#define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C
+#define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
+#define IEEE80211_HT_MCS_TX_MAX_STREAMS 4
+#define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10
+
+/*
+ * 802.11n D5.0 20.3.5 / 20.6 says:
+ * - indices 0 to 7 and 32 are single spatial stream
+ * - 8 to 31 are multiple spatial streams using equal modulation
+ * [8..15 for two streams, 16..23 for three and 24..31 for four]
+ * - remainder are multiple spatial streams using unequal modulation
+ */
+#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
+#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
+ (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
+
/**
* struct ieee80211_ht_cap - HT capabilities
*
- * This structure refers to "HT capabilities element" as
- * described in 802.11n draft section 7.3.2.52
+ * This structure is the "HT capabilities element" as
+ * described in 802.11n D5.0 7.3.2.57
*/
struct ieee80211_ht_cap {
__le16 cap_info;
u8 ampdu_params_info;
- u8 supp_mcs_set[16];
+
+ /* 16 bytes MCS information */
+ struct ieee80211_mcs_info mcs;
+
__le16 extended_ht_cap_info;
__le32 tx_BF_cap_info;
u8 antenna_selection_info;
} __attribute__ ((packed));
+/* 802.11n HT capabilities masks (for cap_info) */
+#define IEEE80211_HT_CAP_LDPC_CODING 0x0001
+#define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002
+#define IEEE80211_HT_CAP_SM_PS 0x000C
+#define IEEE80211_HT_CAP_SM_PS_SHIFT 2
+#define IEEE80211_HT_CAP_GRN_FLD 0x0010
+#define IEEE80211_HT_CAP_SGI_20 0x0020
+#define IEEE80211_HT_CAP_SGI_40 0x0040
+#define IEEE80211_HT_CAP_TX_STBC 0x0080
+#define IEEE80211_HT_CAP_RX_STBC 0x0300
+#define IEEE80211_HT_CAP_DELAY_BA 0x0400
+#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
+#define IEEE80211_HT_CAP_DSSSCCK40 0x1000
+#define IEEE80211_HT_CAP_RESERVED 0x2000
+#define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000
+#define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000
+
+/* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
+#define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03
+#define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C
+#define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2
+
+/*
+ * Maximum length of AMPDU that the STA can receive.
+ * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
+ */
+enum ieee80211_max_ampdu_length_exp {
+ IEEE80211_HT_MAX_AMPDU_8K = 0,
+ IEEE80211_HT_MAX_AMPDU_16K = 1,
+ IEEE80211_HT_MAX_AMPDU_32K = 2,
+ IEEE80211_HT_MAX_AMPDU_64K = 3
+};
+
+#define IEEE80211_HT_MAX_AMPDU_FACTOR 13
+
+/* Minimum MPDU start spacing */
+enum ieee80211_min_mpdu_spacing {
+ IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */
+ IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */
+ IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */
+ IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */
+ IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */
+ IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */
+ IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */
+ IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */
+};
+
/**
- * struct ieee80211_ht_cap - HT additional information
+ * struct ieee80211_ht_info - HT information
*
- * This structure refers to "HT information element" as
- * described in 802.11n draft section 7.3.2.53
+ * This structure is the "HT information element" as
+ * described in 802.11n D5.0 7.3.2.58
*/
-struct ieee80211_ht_addt_info {
+struct ieee80211_ht_info {
u8 control_chan;
u8 ht_param;
__le16 operation_mode;
u8 basic_set[16];
} __attribute__ ((packed));
-/* 802.11n HT capabilities masks */
-#define IEEE80211_HT_CAP_SUP_WIDTH 0x0002
-#define IEEE80211_HT_CAP_MIMO_PS 0x000C
-#define IEEE80211_HT_CAP_GRN_FLD 0x0010
-#define IEEE80211_HT_CAP_SGI_20 0x0020
-#define IEEE80211_HT_CAP_SGI_40 0x0040
-#define IEEE80211_HT_CAP_DELAY_BA 0x0400
-#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
-/* 802.11n HT capability AMPDU settings */
-#define IEEE80211_HT_CAP_AMPDU_FACTOR 0x03
-#define IEEE80211_HT_CAP_AMPDU_DENSITY 0x1C
-/* 802.11n HT capability MSC set */
-#define IEEE80211_SUPP_MCS_SET_UEQM 4
-#define IEEE80211_HT_CAP_MAX_STREAMS 4
-#define IEEE80211_SUPP_MCS_SET_LEN 10
-/* maximum streams the spec allows */
-#define IEEE80211_HT_CAP_MCS_TX_DEFINED 0x01
-#define IEEE80211_HT_CAP_MCS_TX_RX_DIFF 0x02
-#define IEEE80211_HT_CAP_MCS_TX_STREAMS 0x0C
-#define IEEE80211_HT_CAP_MCS_TX_UEQM 0x10
-/* 802.11n HT IE masks */
-#define IEEE80211_HT_IE_CHA_SEC_OFFSET 0x03
-#define IEEE80211_HT_IE_CHA_SEC_ABOVE 0x01
-#define IEEE80211_HT_IE_CHA_SEC_BELOW 0x03
-#define IEEE80211_HT_IE_CHA_WIDTH 0x04
-#define IEEE80211_HT_IE_HT_PROTECTION 0x0003
-#define IEEE80211_HT_IE_NON_GF_STA_PRSNT 0x0004
-#define IEEE80211_HT_IE_NON_HT_STA_PRSNT 0x0010
-
-/* MIMO Power Save Modes */
-#define WLAN_HT_CAP_MIMO_PS_STATIC 0
-#define WLAN_HT_CAP_MIMO_PS_DYNAMIC 1
-#define WLAN_HT_CAP_MIMO_PS_INVALID 2
-#define WLAN_HT_CAP_MIMO_PS_DISABLED 3
+/* for ht_param */
+#define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03
+#define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00
+#define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01
+#define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03
+#define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04
+#define IEEE80211_HT_PARAM_RIFS_MODE 0x08
+#define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10
+#define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0
+
+/* for operation_mode */
+#define IEEE80211_HT_OP_MODE_PROTECTION 0x0003
+#define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0
+#define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1
+#define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2
+#define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3
+#define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004
+#define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010
+
+/* for stbc_param */
+#define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040
+#define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080
+#define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100
+#define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200
+#define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400
+#define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800
+
+
+/* block-ack parameters */
+#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
+#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
+#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
+#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
+#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
+
+/*
+ * A-PMDU buffer sizes
+ * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
+ */
+#define IEEE80211_MIN_AMPDU_BUF 0x8
+#define IEEE80211_MAX_AMPDU_BUF 0x40
+
+
+/* Spatial Multiplexing Power Save Modes (for capability) */
+#define WLAN_HT_CAP_SM_PS_STATIC 0
+#define WLAN_HT_CAP_SM_PS_DYNAMIC 1
+#define WLAN_HT_CAP_SM_PS_INVALID 2
+#define WLAN_HT_CAP_SM_PS_DISABLED 3
+
+/* for SM power control field lower two bits */
+#define WLAN_HT_SMPS_CONTROL_DISABLED 0
+#define WLAN_HT_SMPS_CONTROL_STATIC 1
+#define WLAN_HT_SMPS_CONTROL_DYNAMIC 3
/* Authentication algorithms */
#define WLAN_AUTH_OPEN 0
#define WLAN_AUTH_SHARED_KEY 1
-#define WLAN_AUTH_FAST_BSS_TRANSITION 2
+#define WLAN_AUTH_FT 2
#define WLAN_AUTH_LEAP 128
#define WLAN_AUTH_CHALLENGE_LEN 128
#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
#define WLAN_CAPABILITY_PBCC (1<<6)
#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
+
/* 802.11h */
#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
#define WLAN_CAPABILITY_QOS (1<<9)
#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
+/* measurement */
+#define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0)
+#define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1)
+#define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2)
+
+#define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0
+#define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1
+#define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2
+
/* 802.11g ERP information element */
#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
/* 802.11g */
WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
+ /* 802.11w */
+ WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
+ WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
/* 802.11i */
WLAN_STATUS_INVALID_IE = 40,
WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
WLAN_EID_TIM = 5,
WLAN_EID_IBSS_PARAMS = 6,
WLAN_EID_CHALLENGE = 16,
- /* 802.11d */
+
WLAN_EID_COUNTRY = 7,
WLAN_EID_HP_PARAMS = 8,
WLAN_EID_HP_TABLE = 9,
WLAN_EID_REQUEST = 10,
- /* 802.11e */
+
WLAN_EID_QBSS_LOAD = 11,
WLAN_EID_EDCA_PARAM_SET = 12,
WLAN_EID_TSPEC = 13,
WLAN_EID_PREQ = 68,
WLAN_EID_PREP = 69,
WLAN_EID_PERR = 70,
- /* 802.11h */
+ WLAN_EID_RANN = 49, /* compatible with FreeBSD */
+
WLAN_EID_PWR_CONSTRAINT = 32,
WLAN_EID_PWR_CAPABILITY = 33,
WLAN_EID_TPC_REQUEST = 34,
WLAN_EID_MEASURE_REPORT = 39,
WLAN_EID_QUIET = 40,
WLAN_EID_IBSS_DFS = 41,
- /* 802.11g */
+
WLAN_EID_ERP_INFO = 42,
WLAN_EID_EXT_SUPP_RATES = 50,
- /* 802.11n */
+
WLAN_EID_HT_CAPABILITY = 45,
- WLAN_EID_HT_EXTRA_INFO = 61,
- /* 802.11i */
+ WLAN_EID_HT_INFORMATION = 61,
+
WLAN_EID_RSN = 48,
+ WLAN_EID_MMIE = 76,
WLAN_EID_WPA = 221,
WLAN_EID_GENERIC = 221,
WLAN_EID_VENDOR_SPECIFIC = 221,
- WLAN_EID_QOS_PARAMETER = 222
+ WLAN_EID_QOS_PARAMETER = 222,
+
+ WLAN_EID_AP_CHAN_REPORT = 51,
+ WLAN_EID_NEIGHBOR_REPORT = 52,
+ WLAN_EID_RCPI = 53,
+ WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
+ WLAN_EID_ANTENNA_INFO = 64,
+ WLAN_EID_RSNI = 65,
+ WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
+ WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
+ WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
+ WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
+ WLAN_EID_MULTIPLE_BSSID = 71,
+
+ WLAN_EID_MOBILITY_DOMAIN = 54,
+ WLAN_EID_FAST_BSS_TRANSITION = 55,
+ WLAN_EID_TIMEOUT_INTERVAL = 56,
+ WLAN_EID_RIC_DATA = 57,
+ WLAN_EID_RIC_DESCRIPTOR = 75,
+
+ WLAN_EID_DSE_REGISTERED_LOCATION = 58,
+ WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
+ WLAN_EID_EXT_CHANSWITCH_ANN = 60,
};
/* Action category code */
WLAN_CATEGORY_QOS = 1,
WLAN_CATEGORY_DLS = 2,
WLAN_CATEGORY_BACK = 3,
+ WLAN_CATEGORY_PUBLIC = 4,
+ WLAN_CATEGORY_HT = 7,
+ WLAN_CATEGORY_SA_QUERY = 8,
+ WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
WLAN_CATEGORY_WMM = 17,
+ WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
+ WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
+};
+
+/* SPECTRUM_MGMT action code */
+enum ieee80211_spectrum_mgmt_actioncode {
+ WLAN_ACTION_SPCT_MSR_REQ = 0,
+ WLAN_ACTION_SPCT_MSR_RPRT = 1,
+ WLAN_ACTION_SPCT_TPC_REQ = 2,
+ WLAN_ACTION_SPCT_TPC_RPRT = 3,
+ WLAN_ACTION_SPCT_CHL_SWITCH = 4,
+};
+
+/* HT action codes */
+enum ieee80211_ht_actioncode {
+ WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
+ WLAN_HT_ACTION_SMPS = 1,
+ WLAN_HT_ACTION_PSMP = 2,
+ WLAN_HT_ACTION_PCO_PHASE = 3,
+ WLAN_HT_ACTION_CSI = 4,
+ WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
+ WLAN_HT_ACTION_COMPRESSED_BF = 6,
+ WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
+};
+
+/* Security key length */
+enum ieee80211_key_len {
+ WLAN_KEY_LEN_WEP40 = 5,
+ WLAN_KEY_LEN_WEP104 = 13,
+ WLAN_KEY_LEN_CCMP = 16,
+ WLAN_KEY_LEN_TKIP = 32,
+ WLAN_KEY_LEN_AES_CMAC = 16,
+};
+
+/*
+ * IEEE 802.11-2007 7.3.2.9 Country information element
+ *
+ * Minimum length is 8 octets, ie len must be evenly
+ * divisible by 2
+ */
+
+/* Although the spec says 8 I'm seeing 6 in practice */
+#define IEEE80211_COUNTRY_IE_MIN_LEN 6
+
+/*
+ * For regulatory extension stuff see IEEE 802.11-2007
+ * Annex I (page 1141) and Annex J (page 1147). Also
+ * review 7.3.2.9.
+ *
+ * When dot11RegulatoryClassesRequired is true and the
+ * first_channel/reg_extension_id is >= 201 then the IE
+ * compromises of the 'ext' struct represented below:
+ *
+ * - Regulatory extension ID - when generating IE this just needs
+ * to be monotonically increasing for each triplet passed in
+ * the IE
+ * - Regulatory class - index into set of rules
+ * - Coverage class - index into air propagation time (Table 7-27),
+ * in microseconds, you can compute the air propagation time from
+ * the index by multiplying by 3, so index 10 yields a propagation
+ * of 10 us. Valid values are 0-31, values 32-255 are not defined
+ * yet. A value of 0 inicates air propagation of <= 1 us.
+ *
+ * See also Table I.2 for Emission limit sets and table
+ * I.3 for Behavior limit sets. Table J.1 indicates how to map
+ * a reg_class to an emission limit set and behavior limit set.
+ */
+#define IEEE80211_COUNTRY_EXTENSION_ID 201
+
+/*
+ * Channels numbers in the IE must be monotonically increasing
+ * if dot11RegulatoryClassesRequired is not true.
+ *
+ * If dot11RegulatoryClassesRequired is true consecutive
+ * subband triplets following a regulatory triplet shall
+ * have monotonically increasing first_channel number fields.
+ *
+ * Channel numbers shall not overlap.
+ *
+ * Note that max_power is signed.
+ */
+struct ieee80211_country_ie_triplet {
+ union {
+ struct {
+ u8 first_channel;
+ u8 num_channels;
+ s8 max_power;
+ } __attribute__ ((packed)) chans;
+ struct {
+ u8 reg_extension_id;
+ u8 reg_class;
+ u8 coverage_class;
+ } __attribute__ ((packed)) ext;
+ };
+} __attribute__ ((packed));
+
+enum ieee80211_timeout_interval_type {
+ WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
+ WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
+ WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
};
/* BACK action code */
WLAN_BACK_TIMER = 2,
};
+/* SA Query action */
+enum ieee80211_sa_query_action {
+ WLAN_ACTION_SA_QUERY_REQUEST = 0,
+ WLAN_ACTION_SA_QUERY_RESPONSE = 1,
+};
+
+
/* A-MSDU 802.11n */
#define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080
/* reserved: 0x000FAC03 */
#define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
#define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
+#define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06
+
+/* AKM suite selectors */
+#define WLAN_AKM_SUITE_8021X 0x000FAC01
+#define WLAN_AKM_SUITE_PSK 0x000FAC02
#define WLAN_MAX_KEY_LEN 32
+#define WLAN_PMKID_LEN 16
+
+/**
+ * ieee80211_get_qos_ctl - get pointer to qos control bytes
+ * @hdr: the frame
+ *
+ * The qos ctrl bytes come after the frame_control, duration, seq_num
+ * and 3 or 4 addresses of length ETH_ALEN.
+ * 3 addr: 2 + 2 + 2 + 3*6 = 24
+ * 4 addr: 2 + 2 + 2 + 4*6 = 30
+ */
+static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
+{
+ if (ieee80211_has_a4(hdr->frame_control))
+ return (u8 *)hdr + 30;
+ else
+ return (u8 *)hdr + 24;
+}
+
/**
* ieee80211_get_SA - get pointer to SA
+ * @hdr: the frame
*
* Given an 802.11 frame, this function returns the offset
* to the source address (SA). It does not verify that the
* header is long enough to contain the address, and the
* header must be long enough to contain the frame control
* field.
- *
- * @hdr: the frame
*/
static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
{
- __le16 fc = hdr->frame_control;
- fc &= cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
-
- switch (fc) {
- case __constant_cpu_to_le16(IEEE80211_FCTL_FROMDS):
- return hdr->addr3;
- case __constant_cpu_to_le16(IEEE80211_FCTL_TODS|IEEE80211_FCTL_FROMDS):
+ if (ieee80211_has_a4(hdr->frame_control))
return hdr->addr4;
- default:
- return hdr->addr2;
- }
+ if (ieee80211_has_fromds(hdr->frame_control))
+ return hdr->addr3;
+ return hdr->addr2;
}
/**
* ieee80211_get_DA - get pointer to DA
+ * @hdr: the frame
*
* Given an 802.11 frame, this function returns the offset
* to the destination address (DA). It does not verify that
* the header is long enough to contain the address, and the
* header must be long enough to contain the frame control
* field.
- *
- * @hdr: the frame
*/
static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
{
- __le16 fc = hdr->frame_control;
- fc &= cpu_to_le16(IEEE80211_FCTL_TODS);
-
- if (fc)
+ if (ieee80211_has_tods(hdr->frame_control))
return hdr->addr3;
else
return hdr->addr1;
}
/**
- * ieee80211_get_morefrag - determine whether the MOREFRAGS bit is set
+ * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
+ * @hdr: the frame (buffer must include at least the first octet of payload)
+ */
+static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
+{
+ if (ieee80211_is_disassoc(hdr->frame_control) ||
+ ieee80211_is_deauth(hdr->frame_control))
+ return true;
+
+ if (ieee80211_is_action(hdr->frame_control)) {
+ u8 *category;
+
+ /*
+ * Action frames, excluding Public Action frames, are Robust
+ * Management Frames. However, if we are looking at a Protected
+ * frame, skip the check since the data may be encrypted and
+ * the frame has already been found to be a Robust Management
+ * Frame (by the other end).
+ */
+ if (ieee80211_has_protected(hdr->frame_control))
+ return true;
+ category = ((u8 *) hdr) + 24;
+ return *category != WLAN_CATEGORY_PUBLIC &&
+ *category != WLAN_CATEGORY_HT &&
+ *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
+ }
+
+ return false;
+}
+
+/**
+ * ieee80211_fhss_chan_to_freq - get channel frequency
+ * @channel: the FHSS channel
*
- * This function determines whether the "more fragments" bit is set
- * in the frame.
+ * Convert IEEE802.11 FHSS channel to frequency (MHz)
+ * Ref IEEE 802.11-2007 section 14.6
+ */
+static inline int ieee80211_fhss_chan_to_freq(int channel)
+{
+ if ((channel > 1) && (channel < 96))
+ return channel + 2400;
+ else
+ return -1;
+}
+
+/**
+ * ieee80211_freq_to_fhss_chan - get channel
+ * @freq: the channels frequency
*
- * @hdr: the frame
+ * Convert frequency (MHz) to IEEE802.11 FHSS channel
+ * Ref IEEE 802.11-2007 section 14.6
+ */
+static inline int ieee80211_freq_to_fhss_chan(int freq)
+{
+ if ((freq > 2401) && (freq < 2496))
+ return freq - 2400;
+ else
+ return -1;
+}
+
+/**
+ * ieee80211_dsss_chan_to_freq - get channel center frequency
+ * @channel: the DSSS channel
+ *
+ * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
+ * Ref IEEE 802.11-2007 section 15.6
+ */
+static inline int ieee80211_dsss_chan_to_freq(int channel)
+{
+ if ((channel > 0) && (channel < 14))
+ return 2407 + (channel * 5);
+ else if (channel == 14)
+ return 2484;
+ else
+ return -1;
+}
+
+/**
+ * ieee80211_freq_to_dsss_chan - get channel
+ * @freq: the frequency
+ *
+ * Convert frequency (MHz) to IEEE802.11 DSSS channel
+ * Ref IEEE 802.11-2007 section 15.6
+ *
+ * This routine selects the channel with the closest center frequency.
+ */
+static inline int ieee80211_freq_to_dsss_chan(int freq)
+{
+ if ((freq >= 2410) && (freq < 2475))
+ return (freq - 2405) / 5;
+ else if ((freq >= 2482) && (freq < 2487))
+ return 14;
+ else
+ return -1;
+}
+
+/* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back
+ * Ref IEEE 802.11-2007 section 18.4.6.2
+ *
+ * The channels and frequencies are the same as those defined for DSSS
+ */
+#define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan)
+#define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq)
+
+/* Convert IEEE802.11 ERP channel to frequency (MHz) and back
+ * Ref IEEE 802.11-2007 section 19.4.2
+ */
+#define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan)
+#define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq)
+
+/**
+ * ieee80211_ofdm_chan_to_freq - get channel center frequency
+ * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
+ * @channel: the OFDM channel
+ *
+ * Convert IEEE802.11 OFDM channel to center frequency (MHz)
+ * Ref IEEE 802.11-2007 section 17.3.8.3.2
+ */
+static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel)
+{
+ if ((channel > 0) && (channel <= 200) &&
+ (s_freq >= 4000))
+ return s_freq + (channel * 5);
+ else
+ return -1;
+}
+
+/**
+ * ieee80211_freq_to_ofdm_channel - get channel
+ * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
+ * @freq: the frequency
+ *
+ * Convert frequency (MHz) to IEEE802.11 OFDM channel
+ * Ref IEEE 802.11-2007 section 17.3.8.3.2
+ *
+ * This routine selects the channel with the closest center frequency.
*/
-static inline int ieee80211_get_morefrag(struct ieee80211_hdr *hdr)
+static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq)
{
- __le16 fc = hdr->frame_control;
- return !!(fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS));
+ if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) &&
+ (s_freq >= 4000))
+ return (freq + 2 - s_freq) / 5;
+ else
+ return -1;
+}
+
+/**
+ * ieee80211_tu_to_usec - convert time units (TU) to microseconds
+ * @tu: the TUs
+ */
+static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
+{
+ return 1024 * tu;
+}
+
+/**
+ * ieee80211_check_tim - check if AID bit is set in TIM
+ * @tim: the TIM IE
+ * @tim_len: length of the TIM IE
+ * @aid: the AID to look for
+ */
+static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim,
+ u8 tim_len, u16 aid)
+{
+ u8 mask;
+ u8 index, indexn1, indexn2;
+
+ if (unlikely(!tim || tim_len < sizeof(*tim)))
+ return false;
+
+ aid &= 0x3fff;
+ index = aid / 8;
+ mask = 1 << (aid & 7);
+
+ indexn1 = tim->bitmap_ctrl & 0xfe;
+ indexn2 = tim_len + indexn1 - 4;
+
+ if (index < indexn1 || index > indexn2)
+ return false;
+
+ index -= indexn1;
+
+ return !!(tim->virtual_map[index] & mask);
}
-#endif /* IEEE80211_H */
+#endif /* LINUX_IEEE80211_H */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff