xref: /freebsd/contrib/wpa/src/ap/ieee802_11_he.c (revision 0957b409)
1 /*
2  * hostapd / IEEE 802.11ax HE
3  * Copyright (c) 2016-2017, Qualcomm Atheros, Inc.
4  *
5  * This software may be distributed under the terms of the BSD license.
6  * See README for more details.
7  */
8 
9 #include "utils/includes.h"
10 
11 #include "utils/common.h"
12 #include "common/ieee802_11_defs.h"
13 #include "hostapd.h"
14 #include "ap_config.h"
15 #include "beacon.h"
16 #include "ieee802_11.h"
17 #include "dfs.h"
18 
19 u8 * hostapd_eid_he_capab(struct hostapd_data *hapd, u8 *eid)
20 {
21 	struct ieee80211_he_capabilities *cap;
22 	u8 *pos = eid;
23 
24 	if (!hapd->iface->current_mode)
25 		return eid;
26 
27 	*pos++ = WLAN_EID_EXTENSION;
28 	*pos++ = 1 + sizeof(struct ieee80211_he_capabilities);
29 	*pos++ = WLAN_EID_EXT_HE_CAPABILITIES;
30 
31 	cap = (struct ieee80211_he_capabilities *) pos;
32 	os_memset(cap, 0, sizeof(*cap));
33 
34 	if (hapd->iface->conf->he_phy_capab.he_su_beamformer)
35 		cap->he_phy_capab_info[HE_PHYCAP_SU_BEAMFORMER_CAPAB_IDX] |=
36 			HE_PHYCAP_SU_BEAMFORMER_CAPAB;
37 
38 	if (hapd->iface->conf->he_phy_capab.he_su_beamformee)
39 		cap->he_phy_capab_info[HE_PHYCAP_SU_BEAMFORMEE_CAPAB_IDX] |=
40 			HE_PHYCAP_SU_BEAMFORMEE_CAPAB;
41 
42 	if (hapd->iface->conf->he_phy_capab.he_mu_beamformer)
43 		cap->he_phy_capab_info[HE_PHYCAP_MU_BEAMFORMER_CAPAB_IDX] |=
44 			HE_PHYCAP_MU_BEAMFORMER_CAPAB;
45 
46 	pos += sizeof(*cap);
47 
48 	return pos;
49 }
50 
51 
52 u8 * hostapd_eid_he_operation(struct hostapd_data *hapd, u8 *eid)
53 {
54 	struct ieee80211_he_operation *oper;
55 	u8 *pos = eid;
56 
57 	if (!hapd->iface->current_mode)
58 		return eid;
59 
60 	*pos++ = WLAN_EID_EXTENSION;
61 	*pos++ = 1 + sizeof(struct ieee80211_he_operation);
62 	*pos++ = WLAN_EID_EXT_HE_OPERATION;
63 
64 	oper = (struct ieee80211_he_operation *) pos;
65 	os_memset(oper, 0, sizeof(*oper));
66 
67 	if (hapd->iface->conf->he_op.he_bss_color)
68 		oper->he_oper_params |= hapd->iface->conf->he_op.he_bss_color;
69 
70 	if (hapd->iface->conf->he_op.he_default_pe_duration)
71 		oper->he_oper_params |=
72 			(hapd->iface->conf->he_op.he_default_pe_duration <<
73 			 HE_OPERATION_DFLT_PE_DURATION_OFFSET);
74 
75 	if (hapd->iface->conf->he_op.he_twt_required)
76 		oper->he_oper_params |= HE_OPERATION_TWT_REQUIRED;
77 
78 	if (hapd->iface->conf->he_op.he_rts_threshold)
79 		oper->he_oper_params |=
80 			(hapd->iface->conf->he_op.he_rts_threshold <<
81 			 HE_OPERATION_RTS_THRESHOLD_OFFSET);
82 
83 	/* TODO: conditional MaxBSSID Indicator subfield */
84 
85 	pos += sizeof(*oper);
86 
87 	return pos;
88 }
89