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WNM: Collocated Interference Reporting

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Add support for negotiating WNM Collocated Interference Reporting. This
allows hostapd to request associated STAs to report their collocated
interference information and wpa_supplicant to process such request and
reporting. The actual values (Collocated Interference Report Elements)
are out of scope of hostapd and wpa_supplicant, i.e., external
components are expected to generated and process these.

For hostapd/AP, this mechanism is enabled by setting
coloc_intf_reporting=1 in configuration. STAs are requested to perform
reporting with "COLOC_INTF_REQ <addr> <Automatic Report Enabled> <Report
Timeout>" control interface command. The received reports are indicated
as control interface events "COLOC-INTF-REPORT <addr> <dialog token>
<hexdump of report elements>".

For wpa_supplicant/STA, this mechanism is enabled by setting
coloc_intf_reporting=1 in configuration and setting Collocated
Interference Report Elements as a hexdump with "SET coloc_intf_elems
<hexdump>" control interface command. The hexdump can contain one or
more Collocated Interference Report Elements (each including the
information element header). For additional testing purposes, received
requests are reported with "COLOC-INTF-REQ <dialog token> <automatic
report enabled> <report timeout>" control interface events and
unsolicited reports can be sent with "COLOC_INTF_REPORT <hexdump>".

This commit adds support for reporting changes in the collocated
interference (Automatic Report Enabled == 1 and partial 3), but not for
periodic reports (2 and other part of 3).

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit is contained in:
Jouni Malinen 2018-10-30 14:00:00 +02:00 • committed by Jouni Malinen
parent 224eddb03b
commit d514b50265
18 changed files with 324 additions and 1 deletions
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10
src/common/ieee802_11_defs.h
View file

@ -921,6 +921,16 @@ struct ieee80211_mgmt {
* Entries (optional) */
u8 variable[];
} STRUCT_PACKED bss_tm_query;
struct {
u8 action; /* 11 */
u8 dialog_token;
u8 req_info;
} STRUCT_PACKED coloc_intf_req;
struct {
u8 action; /* 12 */
u8 dialog_token;
u8 variable[];
} STRUCT_PACKED coloc_intf_report;
struct {
u8 action; /* 15 */
u8 variable[];

7
src/common/wpa_ctrl.h
View file

@ -332,6 +332,13 @@ extern "C" {
/* BSS Transition Management Response frame received */
#define BSS_TM_RESP "BSS-TM-RESP "
/* Collocated Interference Request frame received;
* parameters: <dialog token> <automatic report enabled> <report timeout> */
#define COLOC_INTF_REQ "COLOC-INTF-REQ "
/* Collocated Interference Report frame received;
* parameters: <STA address> <dialog token> <hexdump of report elements> */
#define COLOC_INTF_REPORT "COLOC-INTF-REPORT "
/* MBO IE with cellular data connection preference received */
#define MBO_CELL_PREFERENCE "MBO-CELL-PREFERENCE "