Commit f2df3859 authored by Assaf Krauss's avatar Assaf Krauss Committed by John W. Linville
Browse files

mac80211: 11h Infrastructure - Parsing 



This patch introduces parsing of 11h and 11d related elements from incoming
management frames.

Signed-off-by: default avatarAssaf Krauss <assaf.krauss@intel.com>
Signed-off-by: default avatarTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent b99a017c

include/linux/ieee80211.h

+51 −3
Original line number Diff line number Diff line
@@ -469,6 +469,40 @@ struct ieee80211s_hdr { 
	u8 eaddr3[6];

} __attribute__ ((packed));



/**

 * 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_mgmt {

	__le16 frame_control;
@@ -544,10 +578,15 @@ struct ieee80211_mgmt { 
					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;
@@ -875,6 +914,15 @@ enum ieee80211_category { 
	WLAN_CATEGORY_WMM = 17,

};



/* 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,

};



/* BACK action code */

enum ieee80211_back_actioncode {

	WLAN_ACTION_ADDBA_REQ = 0,

net/mac80211/ieee80211_i.h

+9 −0
Original line number Diff line number Diff line
@@ -791,6 +791,10 @@ struct ieee802_11_elems { 
	u8 *preq;

	u8 *prep;

	u8 *perr;

	u8 *ch_switch_elem;

	u8 *country_elem;

	u8 *pwr_constr_elem;

	u8 *quiet_elem; 	/* first quite element */



	/* length of them, respectively */

	u8 ssid_len;
@@ -815,6 +819,11 @@ struct ieee802_11_elems { 
	u8 preq_len;

	u8 prep_len;

	u8 perr_len;

	u8 ch_switch_elem_len;

	u8 country_elem_len;

	u8 pwr_constr_elem_len;

	u8 quiet_elem_len;

	u8 num_of_quiet_elem;	/* can be more the one */

};



static inline struct ieee80211_local *hw_to_local(

net/mac80211/mlme.c

+19 −0
Original line number Diff line number Diff line
@@ -204,6 +204,25 @@ void ieee802_11_parse_elems(u8 *start, size_t len, 
			elems->perr = pos;

			elems->perr_len = elen;

			break;

		case WLAN_EID_CHANNEL_SWITCH:

			elems->ch_switch_elem = pos;

			elems->ch_switch_elem_len = elen;

			break;

		case WLAN_EID_QUIET:

			if (!elems->quiet_elem) {

				elems->quiet_elem = pos;

				elems->quiet_elem_len = elen;

			}

			elems->num_of_quiet_elem++;

			break;

		case WLAN_EID_COUNTRY:

			elems->country_elem = pos;

			elems->country_elem_len = elen;

			break;

		case WLAN_EID_PWR_CONSTRAINT:

			elems->pwr_constr_elem = pos;

			elems->pwr_constr_elem_len = elen;

			break;

		default:

			break;

		}