| /* |
| * wpa_supplicant - MBO |
| * |
| * Copyright(c) 2015 Intel Deutschland GmbH |
| * Contact Information: |
| * Intel Linux Wireless <ilw@linux.intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| * This software may be distributed under the terms of the BSD license. |
| * See README for more details. |
| */ |
| |
| #include "utils/includes.h" |
| |
| #include "utils/common.h" |
| #include "common/ieee802_11_defs.h" |
| #include "config.h" |
| #include "wpa_supplicant_i.h" |
| #include "driver_i.h" |
| #include "bss.h" |
| |
| /* type + length + oui + oui type */ |
| #define MBO_IE_HEADER 6 |
| |
| |
| static int wpas_mbo_validate_non_pref_chan(u8 oper_class, u8 chan, u8 reason) |
| { |
| if (reason > MBO_NON_PREF_CHAN_REASON_INT_INTERFERENCE) |
| return -1; |
| |
| /* Only checking the validity of the channel and oper_class */ |
| if (ieee80211_chan_to_freq(NULL, oper_class, chan) == -1) |
| return -1; |
| |
| return 0; |
| } |
| |
| |
| const u8 * wpas_mbo_get_bss_attr(struct wpa_bss *bss, enum mbo_attr_id attr) |
| { |
| const u8 *mbo, *end; |
| |
| if (!bss) |
| return NULL; |
| |
| mbo = wpa_bss_get_vendor_ie(bss, MBO_IE_VENDOR_TYPE); |
| if (!mbo) |
| return NULL; |
| |
| end = mbo + 2 + mbo[1]; |
| mbo += MBO_IE_HEADER; |
| |
| return get_ie(mbo, end - mbo, attr); |
| } |
| |
| |
| static void wpas_mbo_non_pref_chan_attr_body(struct wpa_supplicant *wpa_s, |
| struct wpabuf *mbo, |
| u8 start, u8 end) |
| { |
| u8 i; |
| |
| wpabuf_put_u8(mbo, wpa_s->non_pref_chan[start].oper_class); |
| |
| for (i = start; i < end; i++) |
| wpabuf_put_u8(mbo, wpa_s->non_pref_chan[i].chan); |
| |
| wpabuf_put_u8(mbo, wpa_s->non_pref_chan[start].preference); |
| wpabuf_put_u8(mbo, wpa_s->non_pref_chan[start].reason); |
| wpabuf_put_u8(mbo, wpa_s->non_pref_chan[start].reason_detail); |
| } |
| |
| |
| static void wpas_mbo_non_pref_chan_attr(struct wpa_supplicant *wpa_s, |
| struct wpabuf *mbo, u8 start, u8 end) |
| { |
| size_t size = end - start + 4; |
| |
| if (size + 2 > wpabuf_tailroom(mbo)) |
| return; |
| |
| wpabuf_put_u8(mbo, MBO_ATTR_ID_NON_PREF_CHAN_REPORT); |
| wpabuf_put_u8(mbo, size); /* Length */ |
| |
| wpas_mbo_non_pref_chan_attr_body(wpa_s, mbo, start, end); |
| } |
| |
| |
| static void wpas_mbo_non_pref_chan_subelem_hdr(struct wpabuf *mbo, u8 len) |
| { |
| wpabuf_put_u8(mbo, WLAN_EID_VENDOR_SPECIFIC); |
| wpabuf_put_u8(mbo, len); /* Length */ |
| wpabuf_put_be24(mbo, OUI_WFA); |
| wpabuf_put_u8(mbo, MBO_ATTR_ID_NON_PREF_CHAN_REPORT); |
| } |
| |
| |
| static void wpas_mbo_non_pref_chan_subelement(struct wpa_supplicant *wpa_s, |
| struct wpabuf *mbo, u8 start, |
| u8 end) |
| { |
| size_t size = end - start + 8; |
| |
| if (size + 2 > wpabuf_tailroom(mbo)) |
| return; |
| |
| wpas_mbo_non_pref_chan_subelem_hdr(mbo, size); |
| wpas_mbo_non_pref_chan_attr_body(wpa_s, mbo, start, end); |
| } |
| |
| |
| static void wpas_mbo_non_pref_chan_attrs(struct wpa_supplicant *wpa_s, |
| struct wpabuf *mbo, int subelement) |
| { |
| u8 i, start = 0; |
| struct wpa_mbo_non_pref_channel *start_pref; |
| |
| if (!wpa_s->non_pref_chan || !wpa_s->non_pref_chan_num) { |
| if (subelement) |
| wpas_mbo_non_pref_chan_subelem_hdr(mbo, 4); |
| return; |
| } |
| start_pref = &wpa_s->non_pref_chan[0]; |
| |
| for (i = 1; i <= wpa_s->non_pref_chan_num; i++) { |
| struct wpa_mbo_non_pref_channel *non_pref = NULL; |
| |
| if (i < wpa_s->non_pref_chan_num) |
| non_pref = &wpa_s->non_pref_chan[i]; |
| if (!non_pref || |
| non_pref->oper_class != start_pref->oper_class || |
| non_pref->reason != start_pref->reason || |
| non_pref->reason_detail != start_pref->reason_detail || |
| non_pref->preference != start_pref->preference) { |
| if (subelement) |
| wpas_mbo_non_pref_chan_subelement(wpa_s, mbo, |
| start, i); |
| else |
| wpas_mbo_non_pref_chan_attr(wpa_s, mbo, start, |
| i); |
| |
| if (!non_pref) |
| return; |
| |
| start = i; |
| start_pref = non_pref; |
| } |
| } |
| } |
| |
| |
| int wpas_mbo_ie(struct wpa_supplicant *wpa_s, u8 *buf, size_t len) |
| { |
| struct wpabuf *mbo; |
| int res; |
| |
| if (len < MBO_IE_HEADER + 3 + 7) |
| return 0; |
| |
| /* Leave room for the MBO IE header */ |
| mbo = wpabuf_alloc(len - MBO_IE_HEADER); |
| if (!mbo) |
| return 0; |
| |
| /* Add non-preferred channels attribute */ |
| wpas_mbo_non_pref_chan_attrs(wpa_s, mbo, 0); |
| |
| /* |
| * Send cellular capabilities attribute even if AP does not advertise |
| * cellular capabilities. |
| */ |
| wpabuf_put_u8(mbo, MBO_ATTR_ID_CELL_DATA_CAPA); |
| wpabuf_put_u8(mbo, 1); |
| wpabuf_put_u8(mbo, wpa_s->conf->mbo_cell_capa); |
| |
| res = mbo_add_ie(buf, len, wpabuf_head_u8(mbo), wpabuf_len(mbo)); |
| if (!res) |
| wpa_printf(MSG_ERROR, "Failed to add MBO IE"); |
| |
| wpabuf_free(mbo); |
| return res; |
| } |
| |
| |
| static void wpas_mbo_send_wnm_notification(struct wpa_supplicant *wpa_s, |
| const u8 *data, size_t len) |
| { |
| struct wpabuf *buf; |
| int res; |
| |
| /* |
| * Send WNM-Notification Request frame only in case of a change in |
| * non-preferred channels list during association, if the AP supports |
| * MBO. |
| */ |
| if (wpa_s->wpa_state != WPA_COMPLETED || !wpa_s->current_bss || |
| !wpa_bss_get_vendor_ie(wpa_s->current_bss, MBO_IE_VENDOR_TYPE)) |
| return; |
| |
| buf = wpabuf_alloc(4 + len); |
| if (!buf) |
| return; |
| |
| wpabuf_put_u8(buf, WLAN_ACTION_WNM); |
| wpabuf_put_u8(buf, WNM_NOTIFICATION_REQ); |
| wpa_s->mbo_wnm_token++; |
| if (wpa_s->mbo_wnm_token == 0) |
| wpa_s->mbo_wnm_token++; |
| wpabuf_put_u8(buf, wpa_s->mbo_wnm_token); |
| wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC); /* Type */ |
| |
| wpabuf_put_data(buf, data, len); |
| |
| res = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid, |
| wpa_s->own_addr, wpa_s->bssid, |
| wpabuf_head(buf), wpabuf_len(buf), 0); |
| if (res < 0) |
| wpa_printf(MSG_DEBUG, |
| "Failed to send WNM-Notification Request frame with non-preferred channel list"); |
| |
| wpabuf_free(buf); |
| } |
| |
| |
| static void wpas_mbo_non_pref_chan_changed(struct wpa_supplicant *wpa_s) |
| { |
| struct wpabuf *buf; |
| |
| buf = wpabuf_alloc(512); |
| if (!buf) |
| return; |
| |
| wpas_mbo_non_pref_chan_attrs(wpa_s, buf, 1); |
| wpas_mbo_send_wnm_notification(wpa_s, wpabuf_head_u8(buf), |
| wpabuf_len(buf)); |
| wpabuf_free(buf); |
| } |
| |
| |
| static int wpa_non_pref_chan_is_eq(struct wpa_mbo_non_pref_channel *a, |
| struct wpa_mbo_non_pref_channel *b) |
| { |
| return a->oper_class == b->oper_class && a->chan == b->chan; |
| } |
| |
| |
| /* |
| * wpa_non_pref_chan_cmp - Compare two channels for sorting |
| * |
| * In MBO IE non-preferred channel subelement we can put many channels in an |
| * attribute if they are in the same operating class and have the same |
| * preference, reason, and reason detail. To make it easy for the functions that |
| * build the IE attributes and WNM Request subelements, save the channels sorted |
| * by their oper_class, reason, and reason_detail. |
| */ |
| static int wpa_non_pref_chan_cmp(const void *_a, const void *_b) |
| { |
| const struct wpa_mbo_non_pref_channel *a = _a, *b = _b; |
| |
| if (a->oper_class != b->oper_class) |
| return a->oper_class - b->oper_class; |
| if (a->reason != b->reason) |
| return a->reason - b->reason; |
| if (a->reason_detail != b->reason_detail) |
| return a->reason_detail - b->reason_detail; |
| return a->preference - b->preference; |
| } |
| |
| |
| int wpas_mbo_update_non_pref_chan(struct wpa_supplicant *wpa_s, |
| const char *non_pref_chan) |
| { |
| char *cmd, *token, *context = NULL; |
| struct wpa_mbo_non_pref_channel *chans = NULL, *tmp_chans; |
| size_t num = 0, size = 0; |
| unsigned i; |
| |
| wpa_printf(MSG_DEBUG, "MBO: Update non-preferred channels, non_pref_chan=%s", |
| non_pref_chan ? non_pref_chan : "N/A"); |
| |
| /* |
| * The shortest channel configuration is 10 characters - commas, 3 |
| * colons, and 4 values that one of them (oper_class) is 2 digits or |
| * more. |
| */ |
| if (!non_pref_chan || os_strlen(non_pref_chan) < 10) |
| goto update; |
| |
| cmd = os_strdup(non_pref_chan); |
| if (!cmd) |
| return -1; |
| |
| while ((token = str_token(cmd, " ", &context))) { |
| struct wpa_mbo_non_pref_channel *chan; |
| int ret; |
| unsigned int _oper_class; |
| unsigned int _chan; |
| unsigned int _preference; |
| unsigned int _reason; |
| unsigned int _reason_detail; |
| |
| if (num == size) { |
| size = size ? size * 2 : 1; |
| tmp_chans = os_realloc_array(chans, size, |
| sizeof(*chans)); |
| if (!tmp_chans) { |
| wpa_printf(MSG_ERROR, |
| "Couldn't reallocate non_pref_chan"); |
| goto fail; |
| } |
| chans = tmp_chans; |
| } |
| |
| chan = &chans[num]; |
| |
| ret = sscanf(token, "%u:%u:%u:%u:%u", &_oper_class, |
| &_chan, &_preference, &_reason, |
| &_reason_detail); |
| if ((ret != 4 && ret != 5) || |
| _oper_class > 255 || _chan > 255 || |
| _preference > 255 || _reason > 65535 || |
| (ret == 5 && _reason_detail > 255)) { |
| wpa_printf(MSG_ERROR, "Invalid non-pref chan input %s", |
| token); |
| goto fail; |
| } |
| chan->oper_class = _oper_class; |
| chan->chan = _chan; |
| chan->preference = _preference; |
| chan->reason = _reason; |
| chan->reason_detail = ret == 4 ? 0 : _reason_detail; |
| |
| if (wpas_mbo_validate_non_pref_chan(chan->oper_class, |
| chan->chan, chan->reason)) { |
| wpa_printf(MSG_ERROR, |
| "Invalid non_pref_chan: oper class %d chan %d reason %d", |
| chan->oper_class, chan->chan, chan->reason); |
| goto fail; |
| } |
| |
| for (i = 0; i < num; i++) |
| if (wpa_non_pref_chan_is_eq(chan, &chans[i])) |
| break; |
| if (i != num) { |
| wpa_printf(MSG_ERROR, |
| "oper class %d chan %d is duplicated", |
| chan->oper_class, chan->chan); |
| goto fail; |
| } |
| |
| num++; |
| } |
| |
| os_free(cmd); |
| |
| if (chans) { |
| qsort(chans, num, sizeof(struct wpa_mbo_non_pref_channel), |
| wpa_non_pref_chan_cmp); |
| } |
| |
| update: |
| os_free(wpa_s->non_pref_chan); |
| wpa_s->non_pref_chan = chans; |
| wpa_s->non_pref_chan_num = num; |
| wpas_mbo_non_pref_chan_changed(wpa_s); |
| |
| return 0; |
| |
| fail: |
| os_free(chans); |
| os_free(cmd); |
| return -1; |
| } |
| |
| |
| void wpas_mbo_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ie) |
| { |
| wpabuf_put_u8(ie, WLAN_EID_VENDOR_SPECIFIC); |
| wpabuf_put_u8(ie, 7); |
| wpabuf_put_be24(ie, OUI_WFA); |
| wpabuf_put_u8(ie, MBO_OUI_TYPE); |
| |
| wpabuf_put_u8(ie, MBO_ATTR_ID_CELL_DATA_CAPA); |
| wpabuf_put_u8(ie, 1); |
| wpabuf_put_u8(ie, wpa_s->conf->mbo_cell_capa); |
| } |
| |
| |
| enum chan_allowed { |
| NOT_ALLOWED, ALLOWED |
| }; |
| |
| static enum chan_allowed allow_channel(struct hostapd_hw_modes *mode, u8 chan, |
| unsigned int *flags) |
| { |
| int i; |
| |
| for (i = 0; i < mode->num_channels; i++) { |
| if (mode->channels[i].chan == chan) |
| break; |
| } |
| |
| if (i == mode->num_channels || |
| (mode->channels[i].flag & HOSTAPD_CHAN_DISABLED)) |
| return NOT_ALLOWED; |
| |
| if (flags) |
| *flags = mode->channels[i].flag; |
| |
| return ALLOWED; |
| } |
| |
| |
| static int get_center_80mhz(struct hostapd_hw_modes *mode, u8 channel) |
| { |
| u8 center_channels[] = {42, 58, 106, 122, 138, 155}; |
| size_t i; |
| |
| if (mode->mode != HOSTAPD_MODE_IEEE80211A) |
| return 0; |
| |
| for (i = 0; i < ARRAY_SIZE(center_channels); i++) { |
| /* |
| * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48), |
| * so the center channel is 6 channels away from the start/end. |
| */ |
| if (channel >= center_channels[i] - 6 && |
| channel <= center_channels[i] + 6) |
| return center_channels[i]; |
| } |
| |
| return 0; |
| } |
| |
| |
| static enum chan_allowed verify_80mhz(struct hostapd_hw_modes *mode, u8 channel) |
| { |
| u8 center_chan; |
| unsigned int i; |
| |
| center_chan = get_center_80mhz(mode, channel); |
| if (!center_chan) |
| return NOT_ALLOWED; |
| |
| /* check all the channels are available */ |
| for (i = 0; i < 4; i++) { |
| unsigned int flags; |
| u8 adj_chan = center_chan - 6 + i * 4; |
| |
| if (allow_channel(mode, adj_chan, &flags) == NOT_ALLOWED) |
| return NOT_ALLOWED; |
| |
| if ((i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70)) || |
| (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50)) || |
| (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30)) || |
| (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))) |
| return NOT_ALLOWED; |
| } |
| |
| return ALLOWED; |
| } |
| |
| |
| static int get_center_160mhz(struct hostapd_hw_modes *mode, u8 channel) |
| { |
| u8 center_channels[] = { 50, 114 }; |
| unsigned int i; |
| |
| if (mode->mode != HOSTAPD_MODE_IEEE80211A) |
| return 0; |
| |
| for (i = 0; i < ARRAY_SIZE(center_channels); i++) { |
| /* |
| * In 160 MHz, the bandwidth "spans" 28 channels (e.g., 36-64), |
| * so the center channel is 14 channels away from the start/end. |
| */ |
| if (channel >= center_channels[i] - 14 && |
| channel <= center_channels[i] + 14) |
| return center_channels[i]; |
| } |
| |
| return 0; |
| } |
| |
| |
| static enum chan_allowed verify_160mhz(struct hostapd_hw_modes *mode, |
| u8 channel) |
| { |
| u8 center_chan; |
| unsigned int i; |
| |
| center_chan = get_center_160mhz(mode, channel); |
| if (!center_chan) |
| return NOT_ALLOWED; |
| |
| /* Check all the channels are available */ |
| for (i = 0; i < 8; i++) { |
| unsigned int flags; |
| u8 adj_chan = center_chan - 14 + i * 4; |
| |
| if (allow_channel(mode, adj_chan, &flags) == NOT_ALLOWED) |
| return NOT_ALLOWED; |
| |
| if ((i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_150)) || |
| (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_130)) || |
| (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_110)) || |
| (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_90)) || |
| (i == 4 && !(flags & HOSTAPD_CHAN_VHT_90_70)) || |
| (i == 5 && !(flags & HOSTAPD_CHAN_VHT_110_50)) || |
| (i == 6 && !(flags & HOSTAPD_CHAN_VHT_130_30)) || |
| (i == 7 && !(flags & HOSTAPD_CHAN_VHT_150_10))) |
| return NOT_ALLOWED; |
| } |
| |
| return ALLOWED; |
| } |
| |
| |
| enum chan_allowed verify_channel(struct hostapd_hw_modes *mode, u8 channel, |
| u8 bw) |
| { |
| unsigned int flag = 0; |
| enum chan_allowed res, res2; |
| |
| res2 = res = allow_channel(mode, channel, &flag); |
| if (bw == BW40MINUS) { |
| if (!(flag & HOSTAPD_CHAN_HT40MINUS)) |
| return NOT_ALLOWED; |
| res2 = allow_channel(mode, channel - 4, NULL); |
| } else if (bw == BW40PLUS) { |
| if (!(flag & HOSTAPD_CHAN_HT40PLUS)) |
| return NOT_ALLOWED; |
| res2 = allow_channel(mode, channel + 4, NULL); |
| } else if (bw == BW80) { |
| res2 = verify_80mhz(mode, channel); |
| } else if (bw == BW160) { |
| res2 = verify_160mhz(mode, channel); |
| } |
| |
| if (res == NOT_ALLOWED || res2 == NOT_ALLOWED) |
| return NOT_ALLOWED; |
| |
| return ALLOWED; |
| } |
| |
| |
| static int wpas_op_class_supported(struct wpa_supplicant *wpa_s, |
| const struct oper_class_map *op_class) |
| { |
| int chan; |
| size_t i; |
| struct hostapd_hw_modes *mode; |
| |
| mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, op_class->mode); |
| if (!mode) |
| return 0; |
| |
| if (op_class->op_class == 128 || op_class->op_class == 130) { |
| u8 channels[] = { 42, 58, 106, 122, 138, 155 }; |
| |
| for (i = 0; i < ARRAY_SIZE(channels); i++) { |
| if (verify_channel(mode, channels[i], op_class->bw) == |
| NOT_ALLOWED) |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| if (op_class->op_class == 129) { |
| if (verify_channel(mode, 50, op_class->bw) == NOT_ALLOWED || |
| verify_channel(mode, 114, op_class->bw) == NOT_ALLOWED) |
| return 0; |
| |
| return 1; |
| } |
| |
| for (chan = op_class->min_chan; chan <= op_class->max_chan; |
| chan += op_class->inc) { |
| if (verify_channel(mode, chan, op_class->bw) == NOT_ALLOWED) |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| |
| int wpas_mbo_supp_op_class_ie(struct wpa_supplicant *wpa_s, int freq, u8 *pos, |
| size_t len) |
| { |
| struct wpabuf *buf; |
| u8 op, current, chan; |
| u8 *ie_len; |
| int res; |
| |
| /* |
| * Assume 20 MHz channel for now. |
| * TODO: Use the secondary channel and VHT channel width that will be |
| * used after association. |
| */ |
| if (ieee80211_freq_to_channel_ext(freq, 0, VHT_CHANWIDTH_USE_HT, |
| ¤t, &chan) == NUM_HOSTAPD_MODES) |
| return 0; |
| |
| /* |
| * Need 3 bytes for EID, length, and current operating class, plus |
| * 1 byte for every other supported operating class. |
| */ |
| buf = wpabuf_alloc(global_op_class_size + 3); |
| if (!buf) |
| return 0; |
| |
| wpabuf_put_u8(buf, WLAN_EID_SUPPORTED_OPERATING_CLASSES); |
| /* Will set the length later, putting a placeholder */ |
| ie_len = wpabuf_put(buf, 1); |
| wpabuf_put_u8(buf, current); |
| |
| for (op = 0; global_op_class[op].op_class; op++) { |
| if (wpas_op_class_supported(wpa_s, &global_op_class[op])) |
| wpabuf_put_u8(buf, global_op_class[op].op_class); |
| } |
| |
| *ie_len = wpabuf_len(buf) - 2; |
| if (*ie_len < 2 || wpabuf_len(buf) > len) { |
| wpa_printf(MSG_ERROR, |
| "Failed to add supported operating classes IE"); |
| res = 0; |
| } else { |
| os_memcpy(pos, wpabuf_head(buf), wpabuf_len(buf)); |
| res = wpabuf_len(buf); |
| wpa_hexdump_buf(MSG_DEBUG, |
| "MBO: Added supported operating classes IE", |
| buf); |
| } |
| |
| wpabuf_free(buf); |
| return res; |
| } |
| |
| |
| void wpas_mbo_ie_trans_req(struct wpa_supplicant *wpa_s, const u8 *mbo_ie, |
| size_t len) |
| { |
| const u8 *pos, *cell_pref = NULL, *reason = NULL; |
| u8 id, elen; |
| u16 disallowed_sec = 0; |
| |
| if (len <= 4 || WPA_GET_BE24(mbo_ie) != OUI_WFA || |
| mbo_ie[3] != MBO_OUI_TYPE) |
| return; |
| |
| pos = mbo_ie + 4; |
| len -= 4; |
| |
| while (len >= 2) { |
| id = *pos++; |
| elen = *pos++; |
| len -= 2; |
| |
| if (elen > len) |
| goto fail; |
| |
| switch (id) { |
| case MBO_ATTR_ID_CELL_DATA_PREF: |
| if (elen != 1) |
| goto fail; |
| |
| if (wpa_s->conf->mbo_cell_capa == |
| MBO_CELL_CAPA_AVAILABLE) |
| cell_pref = pos; |
| else |
| wpa_printf(MSG_DEBUG, |
| "MBO: Station does not support Cellular data connection"); |
| break; |
| case MBO_ATTR_ID_TRANSITION_REASON: |
| if (elen != 1) |
| goto fail; |
| |
| reason = pos; |
| break; |
| case MBO_ATTR_ID_ASSOC_RETRY_DELAY: |
| if (elen != 2) |
| goto fail; |
| |
| if (wpa_s->wnm_mode & |
| WNM_BSS_TM_REQ_BSS_TERMINATION_INCLUDED) { |
| wpa_printf(MSG_DEBUG, |
| "MBO: Unexpected association retry delay, BSS is terminating"); |
| goto fail; |
| } else if (wpa_s->wnm_mode & |
| WNM_BSS_TM_REQ_DISASSOC_IMMINENT) { |
| disallowed_sec = WPA_GET_LE16(pos); |
| } else { |
| wpa_printf(MSG_DEBUG, |
| "MBO: Association retry delay attribute not in disassoc imminent mode"); |
| } |
| |
| break; |
| case MBO_ATTR_ID_AP_CAPA_IND: |
| case MBO_ATTR_ID_NON_PREF_CHAN_REPORT: |
| case MBO_ATTR_ID_CELL_DATA_CAPA: |
| case MBO_ATTR_ID_ASSOC_DISALLOW: |
| case MBO_ATTR_ID_TRANSITION_REJECT_REASON: |
| wpa_printf(MSG_DEBUG, |
| "MBO: Attribute %d should not be included in BTM Request frame", |
| id); |
| break; |
| default: |
| wpa_printf(MSG_DEBUG, "MBO: Unknown attribute id %u", |
| id); |
| return; |
| } |
| |
| pos += elen; |
| len -= elen; |
| } |
| |
| if (cell_pref) |
| wpa_msg(wpa_s, MSG_INFO, MBO_CELL_PREFERENCE "preference=%u", |
| *cell_pref); |
| |
| if (reason) |
| wpa_msg(wpa_s, MSG_INFO, MBO_TRANSITION_REASON "reason=%u", |
| *reason); |
| |
| if (disallowed_sec && wpa_s->current_bss) |
| wpa_bss_tmp_disallow(wpa_s, wpa_s->current_bss->bssid, |
| disallowed_sec); |
| |
| return; |
| fail: |
| wpa_printf(MSG_DEBUG, "MBO IE parsing failed (id=%u len=%u left=%zu)", |
| id, elen, len); |
| } |
| |
| |
| size_t wpas_mbo_ie_bss_trans_reject(struct wpa_supplicant *wpa_s, u8 *pos, |
| size_t len, |
| enum mbo_transition_reject_reason reason) |
| { |
| u8 reject_attr[3]; |
| |
| reject_attr[0] = MBO_ATTR_ID_TRANSITION_REJECT_REASON; |
| reject_attr[1] = 1; |
| reject_attr[2] = reason; |
| |
| return mbo_add_ie(pos, len, reject_attr, sizeof(reject_attr)); |
| } |
| |
| |
| void wpas_mbo_update_cell_capa(struct wpa_supplicant *wpa_s, u8 mbo_cell_capa) |
| { |
| u8 cell_capa[7]; |
| |
| if (wpa_s->conf->mbo_cell_capa == mbo_cell_capa) { |
| wpa_printf(MSG_DEBUG, |
| "MBO: Cellular capability already set to %u", |
| mbo_cell_capa); |
| return; |
| } |
| |
| wpa_s->conf->mbo_cell_capa = mbo_cell_capa; |
| |
| cell_capa[0] = WLAN_EID_VENDOR_SPECIFIC; |
| cell_capa[1] = 5; /* Length */ |
| WPA_PUT_BE24(cell_capa + 2, OUI_WFA); |
| cell_capa[5] = MBO_ATTR_ID_CELL_DATA_CAPA; |
| cell_capa[6] = mbo_cell_capa; |
| |
| wpas_mbo_send_wnm_notification(wpa_s, cell_capa, 7); |
| } |