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
hostapd_eid_he_capab(struct hostapd_data * hapd,u8 * eid)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
hostapd_eid_he_operation(struct hostapd_data * hapd,u8 * eid)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
90
hostapd_eid_he_mu_edca_parameter_set(struct hostapd_data * hapd,u8 * eid)91 u8 * hostapd_eid_he_mu_edca_parameter_set(struct hostapd_data *hapd, u8 *eid)
92 {
93 struct ieee80211_he_mu_edca_parameter_set *edca;
94 u8 *pos;
95 size_t i;
96
97 pos = (u8 *) &hapd->iface->conf->he_mu_edca;
98 for (i = 0; i < sizeof(*edca); i++) {
99 if (pos[i])
100 break;
101 }
102 if (i == sizeof(*edca))
103 return eid; /* no MU EDCA Parameters configured */
104
105 pos = eid;
106 *pos++ = WLAN_EID_EXTENSION;
107 *pos++ = 1 + sizeof(*edca);
108 *pos++ = WLAN_EID_EXT_HE_MU_EDCA_PARAMS;
109
110 edca = (struct ieee80211_he_mu_edca_parameter_set *) pos;
111 os_memcpy(edca, &hapd->iface->conf->he_mu_edca, sizeof(*edca));
112
113 wpa_hexdump(MSG_DEBUG, "HE: MU EDCA Parameter Set element",
114 pos, sizeof(*edca));
115
116 pos += sizeof(*edca);
117
118 return pos;
119 }
120