/*
* IEEE 802.11 Common routines
- * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2002-2015, Jouni Malinen <j@w1.fi>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Alternatively, this software may be distributed under the terms of BSD
- * license.
- *
- * See README and COPYING for more details.
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
*/
#include "includes.h"
#include "common.h"
+#include "defs.h"
+#include "wpa_common.h"
+#include "qca-vendor.h"
#include "ieee802_11_defs.h"
#include "ieee802_11_common.h"
elems->p2p = pos;
elems->p2p_len = elen;
break;
+ case WFD_OUI_TYPE:
+ /* Wi-Fi Alliance - WFD IE */
+ elems->wfd = pos;
+ elems->wfd_len = elen;
+ break;
+ case HS20_INDICATION_OUI_TYPE:
+ /* Hotspot 2.0 */
+ elems->hs20 = pos;
+ elems->hs20_len = elen;
+ break;
+ case HS20_OSEN_OUI_TYPE:
+ /* Hotspot 2.0 OSEN */
+ elems->osen = pos;
+ elems->osen_len = elen;
+ break;
default:
wpa_printf(MSG_MSGDUMP, "Unknown WFA "
"information element ignored "
- "(type=%d len=%lu)\n",
+ "(type=%d len=%lu)",
pos[3], (unsigned long) elen);
return -1;
}
elems->vendor_ht_cap = pos;
elems->vendor_ht_cap_len = elen;
break;
+ case VENDOR_VHT_TYPE:
+ if (elen > 4 &&
+ (pos[4] == VENDOR_VHT_SUBTYPE ||
+ pos[4] == VENDOR_VHT_SUBTYPE2)) {
+ elems->vendor_vht = pos;
+ elems->vendor_vht_len = elen;
+ } else
+ return -1;
+ break;
default:
wpa_printf(MSG_EXCESSIVE, "Unknown Broadcom "
"information element ignored "
}
break;
+ case OUI_QCA:
+ switch (pos[3]) {
+ case QCA_VENDOR_ELEM_P2P_PREF_CHAN_LIST:
+ elems->pref_freq_list = pos;
+ elems->pref_freq_list_len = elen;
+ break;
+ default:
+ wpa_printf(MSG_EXCESSIVE,
+ "Unknown QCA information element ignored (type=%d len=%lu)",
+ pos[3], (unsigned long) elen);
+ return -1;
+ }
+ break;
+
default:
wpa_printf(MSG_EXCESSIVE, "unknown vendor specific "
"information element ignored (vendor OUI "
switch (id) {
case WLAN_EID_SSID:
+ if (elen > SSID_MAX_LEN) {
+ wpa_printf(MSG_DEBUG,
+ "Ignored too long SSID element (elen=%u)",
+ elen);
+ break;
+ }
elems->ssid = pos;
elems->ssid_len = elen;
break;
elems->supp_rates = pos;
elems->supp_rates_len = elen;
break;
- case WLAN_EID_FH_PARAMS:
- elems->fh_params = pos;
- elems->fh_params_len = elen;
- break;
case WLAN_EID_DS_PARAMS:
+ if (elen < 1)
+ break;
elems->ds_params = pos;
- elems->ds_params_len = elen;
break;
case WLAN_EID_CF_PARAMS:
- elems->cf_params = pos;
- elems->cf_params_len = elen;
- break;
case WLAN_EID_TIM:
- elems->tim = pos;
- elems->tim_len = elen;
- break;
- case WLAN_EID_IBSS_PARAMS:
- elems->ibss_params = pos;
- elems->ibss_params_len = elen;
break;
case WLAN_EID_CHALLENGE:
elems->challenge = pos;
elems->challenge_len = elen;
break;
case WLAN_EID_ERP_INFO:
+ if (elen < 1)
+ break;
elems->erp_info = pos;
- elems->erp_info_len = elen;
break;
case WLAN_EID_EXT_SUPP_RATES:
elems->ext_supp_rates = pos;
elems->rsn_ie_len = elen;
break;
case WLAN_EID_PWR_CAPABILITY:
- elems->power_cap = pos;
- elems->power_cap_len = elen;
break;
case WLAN_EID_SUPPORTED_CHANNELS:
elems->supp_channels = pos;
elems->supp_channels_len = elen;
break;
case WLAN_EID_MOBILITY_DOMAIN:
+ if (elen < sizeof(struct rsn_mdie))
+ break;
elems->mdie = pos;
elems->mdie_len = elen;
break;
case WLAN_EID_FAST_BSS_TRANSITION:
+ if (elen < sizeof(struct rsn_ftie))
+ break;
elems->ftie = pos;
elems->ftie_len = elen;
break;
case WLAN_EID_TIMEOUT_INTERVAL:
+ if (elen != 5)
+ break;
elems->timeout_int = pos;
- elems->timeout_int_len = elen;
break;
case WLAN_EID_HT_CAP:
+ if (elen < sizeof(struct ieee80211_ht_capabilities))
+ break;
elems->ht_capabilities = pos;
- elems->ht_capabilities_len = elen;
break;
case WLAN_EID_HT_OPERATION:
+ if (elen < sizeof(struct ieee80211_ht_operation))
+ break;
elems->ht_operation = pos;
- elems->ht_operation_len = elen;
+ break;
+ case WLAN_EID_MESH_CONFIG:
+ elems->mesh_config = pos;
+ elems->mesh_config_len = elen;
+ break;
+ case WLAN_EID_MESH_ID:
+ elems->mesh_id = pos;
+ elems->mesh_id_len = elen;
+ break;
+ case WLAN_EID_PEER_MGMT:
+ elems->peer_mgmt = pos;
+ elems->peer_mgmt_len = elen;
+ break;
+ case WLAN_EID_VHT_CAP:
+ if (elen < sizeof(struct ieee80211_vht_capabilities))
+ break;
+ elems->vht_capabilities = pos;
+ break;
+ case WLAN_EID_VHT_OPERATION:
+ if (elen < sizeof(struct ieee80211_vht_operation))
+ break;
+ elems->vht_operation = pos;
+ break;
+ case WLAN_EID_VHT_OPERATING_MODE_NOTIFICATION:
+ if (elen != 1)
+ break;
+ elems->vht_opmode_notif = pos;
+ break;
+ case WLAN_EID_LINK_ID:
+ if (elen < 18)
+ break;
+ elems->link_id = pos;
+ break;
+ case WLAN_EID_INTERWORKING:
+ elems->interworking = pos;
+ elems->interworking_len = elen;
+ break;
+ case WLAN_EID_QOS_MAP_SET:
+ if (elen < 16)
+ break;
+ elems->qos_map_set = pos;
+ elems->qos_map_set_len = elen;
+ break;
+ case WLAN_EID_EXT_CAPAB:
+ elems->ext_capab = pos;
+ elems->ext_capab_len = elen;
+ break;
+ case WLAN_EID_BSS_MAX_IDLE_PERIOD:
+ if (elen < 3)
+ break;
+ elems->bss_max_idle_period = pos;
+ break;
+ case WLAN_EID_SSID_LIST:
+ elems->ssid_list = pos;
+ elems->ssid_list_len = elen;
+ break;
+ case WLAN_EID_AMPE:
+ elems->ampe = pos;
+ elems->ampe_len = elen;
+ break;
+ case WLAN_EID_MIC:
+ elems->mic = pos;
+ elems->mic_len = elen;
+ /* after mic everything is encrypted, so stop. */
+ left = elen;
+ break;
+ case WLAN_EID_MULTI_BAND:
+ if (elems->mb_ies.nof_ies >= MAX_NOF_MB_IES_SUPPORTED) {
+ wpa_printf(MSG_MSGDUMP,
+ "IEEE 802.11 element parse ignored MB IE (id=%d elen=%d)",
+ id, elen);
+ break;
+ }
+
+ elems->mb_ies.ies[elems->mb_ies.nof_ies].ie = pos;
+ elems->mb_ies.ies[elems->mb_ies.nof_ies].ie_len = elen;
+ elems->mb_ies.nof_ies++;
break;
default:
unknown++;
return buf;
}
+
+
+const u8 * get_hdr_bssid(const struct ieee80211_hdr *hdr, size_t len)
+{
+ u16 fc, type, stype;
+
+ /*
+ * PS-Poll frames are 16 bytes. All other frames are
+ * 24 bytes or longer.
+ */
+ if (len < 16)
+ return NULL;
+
+ fc = le_to_host16(hdr->frame_control);
+ type = WLAN_FC_GET_TYPE(fc);
+ stype = WLAN_FC_GET_STYPE(fc);
+
+ switch (type) {
+ case WLAN_FC_TYPE_DATA:
+ if (len < 24)
+ return NULL;
+ switch (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) {
+ case WLAN_FC_FROMDS | WLAN_FC_TODS:
+ case WLAN_FC_TODS:
+ return hdr->addr1;
+ case WLAN_FC_FROMDS:
+ return hdr->addr2;
+ default:
+ return NULL;
+ }
+ case WLAN_FC_TYPE_CTRL:
+ if (stype != WLAN_FC_STYPE_PSPOLL)
+ return NULL;
+ return hdr->addr1;
+ case WLAN_FC_TYPE_MGMT:
+ return hdr->addr3;
+ default:
+ return NULL;
+ }
+}
+
+
+int hostapd_config_wmm_ac(struct hostapd_wmm_ac_params wmm_ac_params[],
+ const char *name, const char *val)
+{
+ int num, v;
+ const char *pos;
+ struct hostapd_wmm_ac_params *ac;
+
+ /* skip 'wme_ac_' or 'wmm_ac_' prefix */
+ pos = name + 7;
+ if (os_strncmp(pos, "be_", 3) == 0) {
+ num = 0;
+ pos += 3;
+ } else if (os_strncmp(pos, "bk_", 3) == 0) {
+ num = 1;
+ pos += 3;
+ } else if (os_strncmp(pos, "vi_", 3) == 0) {
+ num = 2;
+ pos += 3;
+ } else if (os_strncmp(pos, "vo_", 3) == 0) {
+ num = 3;
+ pos += 3;
+ } else {
+ wpa_printf(MSG_ERROR, "Unknown WMM name '%s'", pos);
+ return -1;
+ }
+
+ ac = &wmm_ac_params[num];
+
+ if (os_strcmp(pos, "aifs") == 0) {
+ v = atoi(val);
+ if (v < 1 || v > 255) {
+ wpa_printf(MSG_ERROR, "Invalid AIFS value %d", v);
+ return -1;
+ }
+ ac->aifs = v;
+ } else if (os_strcmp(pos, "cwmin") == 0) {
+ v = atoi(val);
+ if (v < 0 || v > 15) {
+ wpa_printf(MSG_ERROR, "Invalid cwMin value %d", v);
+ return -1;
+ }
+ ac->cwmin = v;
+ } else if (os_strcmp(pos, "cwmax") == 0) {
+ v = atoi(val);
+ if (v < 0 || v > 15) {
+ wpa_printf(MSG_ERROR, "Invalid cwMax value %d", v);
+ return -1;
+ }
+ ac->cwmax = v;
+ } else if (os_strcmp(pos, "txop_limit") == 0) {
+ v = atoi(val);
+ if (v < 0 || v > 0xffff) {
+ wpa_printf(MSG_ERROR, "Invalid txop value %d", v);
+ return -1;
+ }
+ ac->txop_limit = v;
+ } else if (os_strcmp(pos, "acm") == 0) {
+ v = atoi(val);
+ if (v < 0 || v > 1) {
+ wpa_printf(MSG_ERROR, "Invalid acm value %d", v);
+ return -1;
+ }
+ ac->admission_control_mandatory = v;
+ } else {
+ wpa_printf(MSG_ERROR, "Unknown wmm_ac_ field '%s'", pos);
+ return -1;
+ }
+
+ return 0;
+}
+
+
+enum hostapd_hw_mode ieee80211_freq_to_chan(int freq, u8 *channel)
+{
+ u8 op_class;
+
+ return ieee80211_freq_to_channel_ext(freq, 0, 0, &op_class, channel);
+}
+
+
+/**
+ * ieee80211_freq_to_channel_ext - Convert frequency into channel info
+ * for HT40 and VHT. DFS channels are not covered.
+ * @freq: Frequency (MHz) to convert
+ * @sec_channel: 0 = non-HT40, 1 = sec. channel above, -1 = sec. channel below
+ * @vht: 0 - non-VHT, 1 - 80 MHz
+ * @op_class: Buffer for returning operating class
+ * @channel: Buffer for returning channel number
+ * Returns: hw_mode on success, NUM_HOSTAPD_MODES on failure
+ */
+enum hostapd_hw_mode ieee80211_freq_to_channel_ext(unsigned int freq,
+ int sec_channel, int vht,
+ u8 *op_class, u8 *channel)
+{
+ /* TODO: more operating classes */
+
+ if (sec_channel > 1 || sec_channel < -1)
+ return NUM_HOSTAPD_MODES;
+
+ if (freq >= 2412 && freq <= 2472) {
+ if ((freq - 2407) % 5)
+ return NUM_HOSTAPD_MODES;
+
+ if (vht)
+ return NUM_HOSTAPD_MODES;
+
+ /* 2.407 GHz, channels 1..13 */
+ if (sec_channel == 1)
+ *op_class = 83;
+ else if (sec_channel == -1)
+ *op_class = 84;
+ else
+ *op_class = 81;
+
+ *channel = (freq - 2407) / 5;
+
+ return HOSTAPD_MODE_IEEE80211G;
+ }
+
+ if (freq == 2484) {
+ if (sec_channel || vht)
+ return NUM_HOSTAPD_MODES;
+
+ *op_class = 82; /* channel 14 */
+ *channel = 14;
+
+ return HOSTAPD_MODE_IEEE80211B;
+ }
+
+ if (freq >= 4900 && freq < 5000) {
+ if ((freq - 4000) % 5)
+ return NUM_HOSTAPD_MODES;
+ *channel = (freq - 4000) / 5;
+ *op_class = 0; /* TODO */
+ return HOSTAPD_MODE_IEEE80211A;
+ }
+
+ /* 5 GHz, channels 36..48 */
+ if (freq >= 5180 && freq <= 5240) {
+ if ((freq - 5000) % 5)
+ return NUM_HOSTAPD_MODES;
+
+ if (sec_channel == 1)
+ *op_class = 116;
+ else if (sec_channel == -1)
+ *op_class = 117;
+ else if (vht)
+ *op_class = 128;
+ else
+ *op_class = 115;
+
+ *channel = (freq - 5000) / 5;
+
+ return HOSTAPD_MODE_IEEE80211A;
+ }
+
+ /* 5 GHz, channels 149..161 */
+ if (freq >= 5745 && freq <= 5805) {
+ if ((freq - 5000) % 5)
+ return NUM_HOSTAPD_MODES;
+
+ if (sec_channel == 1)
+ *op_class = 126;
+ else if (sec_channel == -1)
+ *op_class = 127;
+ else if (vht)
+ *op_class = 128;
+ else
+ *op_class = 124;
+
+ *channel = (freq - 5000) / 5;
+
+ return HOSTAPD_MODE_IEEE80211A;
+ }
+
+ /* 5 GHz, channels 149..169 */
+ if (freq >= 5745 && freq <= 5845) {
+ if ((freq - 5000) % 5)
+ return NUM_HOSTAPD_MODES;
+
+ *op_class = 125;
+
+ *channel = (freq - 5000) / 5;
+
+ return HOSTAPD_MODE_IEEE80211A;
+ }
+
+ if (freq >= 5000 && freq < 5900) {
+ if ((freq - 5000) % 5)
+ return NUM_HOSTAPD_MODES;
+ *channel = (freq - 5000) / 5;
+ *op_class = 0; /* TODO */
+ return HOSTAPD_MODE_IEEE80211A;
+ }
+
+ /* 56.16 GHz, channel 1..4 */
+ if (freq >= 56160 + 2160 * 1 && freq <= 56160 + 2160 * 4) {
+ if (sec_channel || vht)
+ return NUM_HOSTAPD_MODES;
+
+ *channel = (freq - 56160) / 2160;
+ *op_class = 180;
+
+ return HOSTAPD_MODE_IEEE80211AD;
+ }
+
+ return NUM_HOSTAPD_MODES;
+}
+
+
+static const char *const us_op_class_cc[] = {
+ "US", "CA", NULL
+};
+
+static const char *const eu_op_class_cc[] = {
+ "AL", "AM", "AT", "AZ", "BA", "BE", "BG", "BY", "CH", "CY", "CZ", "DE",
+ "DK", "EE", "EL", "ES", "FI", "FR", "GE", "HR", "HU", "IE", "IS", "IT",
+ "LI", "LT", "LU", "LV", "MD", "ME", "MK", "MT", "NL", "NO", "PL", "PT",
+ "RO", "RS", "RU", "SE", "SI", "SK", "TR", "UA", "UK", NULL
+};
+
+static const char *const jp_op_class_cc[] = {
+ "JP", NULL
+};
+
+static const char *const cn_op_class_cc[] = {
+ "CN", NULL
+};
+
+
+static int country_match(const char *const cc[], const char *const country)
+{
+ int i;
+
+ if (country == NULL)
+ return 0;
+ for (i = 0; cc[i]; i++) {
+ if (cc[i][0] == country[0] && cc[i][1] == country[1])
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static int ieee80211_chan_to_freq_us(u8 op_class, u8 chan)
+{
+ switch (op_class) {
+ case 12: /* channels 1..11 */
+ case 32: /* channels 1..7; 40 MHz */
+ case 33: /* channels 5..11; 40 MHz */
+ if (chan < 1 || chan > 11)
+ return -1;
+ return 2407 + 5 * chan;
+ case 1: /* channels 36,40,44,48 */
+ case 2: /* channels 52,56,60,64; dfs */
+ case 22: /* channels 36,44; 40 MHz */
+ case 23: /* channels 52,60; 40 MHz */
+ case 27: /* channels 40,48; 40 MHz */
+ case 28: /* channels 56,64; 40 MHz */
+ if (chan < 36 || chan > 64)
+ return -1;
+ return 5000 + 5 * chan;
+ case 4: /* channels 100-144 */
+ case 24: /* channels 100-140; 40 MHz */
+ if (chan < 100 || chan > 144)
+ return -1;
+ return 5000 + 5 * chan;
+ case 3: /* channels 149,153,157,161 */
+ case 25: /* channels 149,157; 40 MHz */
+ case 26: /* channels 149,157; 40 MHz */
+ case 30: /* channels 153,161; 40 MHz */
+ case 31: /* channels 153,161; 40 MHz */
+ if (chan < 149 || chan > 161)
+ return -1;
+ return 5000 + 5 * chan;
+ case 5: /* channels 149,153,157,161,165 */
+ if (chan < 149 || chan > 165)
+ return -1;
+ return 5000 + 5 * chan;
+ case 34: /* 60 GHz band, channels 1..3 */
+ if (chan < 1 || chan > 3)
+ return -1;
+ return 56160 + 2160 * chan;
+ }
+ return -1;
+}
+
+
+static int ieee80211_chan_to_freq_eu(u8 op_class, u8 chan)
+{
+ switch (op_class) {
+ case 4: /* channels 1..13 */
+ case 11: /* channels 1..9; 40 MHz */
+ case 12: /* channels 5..13; 40 MHz */
+ if (chan < 1 || chan > 13)
+ return -1;
+ return 2407 + 5 * chan;
+ case 1: /* channels 36,40,44,48 */
+ case 2: /* channels 52,56,60,64; dfs */
+ case 5: /* channels 36,44; 40 MHz */
+ case 6: /* channels 52,60; 40 MHz */
+ case 8: /* channels 40,48; 40 MHz */
+ case 9: /* channels 56,64; 40 MHz */
+ if (chan < 36 || chan > 64)
+ return -1;
+ return 5000 + 5 * chan;
+ case 3: /* channels 100-140 */
+ case 7: /* channels 100-132; 40 MHz */
+ case 10: /* channels 104-136; 40 MHz */
+ case 16: /* channels 100-140 */
+ if (chan < 100 || chan > 140)
+ return -1;
+ return 5000 + 5 * chan;
+ case 17: /* channels 149,153,157,161,165,169 */
+ if (chan < 149 || chan > 169)
+ return -1;
+ return 5000 + 5 * chan;
+ case 18: /* 60 GHz band, channels 1..4 */
+ if (chan < 1 || chan > 4)
+ return -1;
+ return 56160 + 2160 * chan;
+ }
+ return -1;
+}
+
+
+static int ieee80211_chan_to_freq_jp(u8 op_class, u8 chan)
+{
+ switch (op_class) {
+ case 30: /* channels 1..13 */
+ case 56: /* channels 1..9; 40 MHz */
+ case 57: /* channels 5..13; 40 MHz */
+ if (chan < 1 || chan > 13)
+ return -1;
+ return 2407 + 5 * chan;
+ case 31: /* channel 14 */
+ if (chan != 14)
+ return -1;
+ return 2414 + 5 * chan;
+ case 1: /* channels 34,38,42,46(old) or 36,40,44,48 */
+ case 32: /* channels 52,56,60,64 */
+ case 33: /* channels 52,56,60,64 */
+ case 36: /* channels 36,44; 40 MHz */
+ case 37: /* channels 52,60; 40 MHz */
+ case 38: /* channels 52,60; 40 MHz */
+ case 41: /* channels 40,48; 40 MHz */
+ case 42: /* channels 56,64; 40 MHz */
+ case 43: /* channels 56,64; 40 MHz */
+ if (chan < 34 || chan > 64)
+ return -1;
+ return 5000 + 5 * chan;
+ case 34: /* channels 100-140 */
+ case 35: /* channels 100-140 */
+ case 39: /* channels 100-132; 40 MHz */
+ case 40: /* channels 100-132; 40 MHz */
+ case 44: /* channels 104-136; 40 MHz */
+ case 45: /* channels 104-136; 40 MHz */
+ case 58: /* channels 100-140 */
+ if (chan < 100 || chan > 140)
+ return -1;
+ return 5000 + 5 * chan;
+ case 59: /* 60 GHz band, channels 1..4 */
+ if (chan < 1 || chan > 3)
+ return -1;
+ return 56160 + 2160 * chan;
+ }
+ return -1;
+}
+
+
+static int ieee80211_chan_to_freq_cn(u8 op_class, u8 chan)
+{
+ switch (op_class) {
+ case 7: /* channels 1..13 */
+ case 8: /* channels 1..9; 40 MHz */
+ case 9: /* channels 5..13; 40 MHz */
+ if (chan < 1 || chan > 13)
+ return -1;
+ return 2407 + 5 * chan;
+ case 1: /* channels 36,40,44,48 */
+ case 2: /* channels 52,56,60,64; dfs */
+ case 4: /* channels 36,44; 40 MHz */
+ case 5: /* channels 52,60; 40 MHz */
+ if (chan < 36 || chan > 64)
+ return -1;
+ return 5000 + 5 * chan;
+ case 3: /* channels 149,153,157,161,165 */
+ case 6: /* channels 149,157; 40 MHz */
+ if (chan < 149 || chan > 165)
+ return -1;
+ return 5000 + 5 * chan;
+ }
+ return -1;
+}
+
+
+static int ieee80211_chan_to_freq_global(u8 op_class, u8 chan)
+{
+ /* Table E-4 in IEEE Std 802.11-2012 - Global operating classes */
+ switch (op_class) {
+ case 81:
+ /* channels 1..13 */
+ if (chan < 1 || chan > 13)
+ return -1;
+ return 2407 + 5 * chan;
+ case 82:
+ /* channel 14 */
+ if (chan != 14)
+ return -1;
+ return 2414 + 5 * chan;
+ case 83: /* channels 1..9; 40 MHz */
+ case 84: /* channels 5..13; 40 MHz */
+ if (chan < 1 || chan > 13)
+ return -1;
+ return 2407 + 5 * chan;
+ case 115: /* channels 36,40,44,48; indoor only */
+ case 116: /* channels 36,44; 40 MHz; indoor only */
+ case 117: /* channels 40,48; 40 MHz; indoor only */
+ case 118: /* channels 52,56,60,64; dfs */
+ case 119: /* channels 52,60; 40 MHz; dfs */
+ case 120: /* channels 56,64; 40 MHz; dfs */
+ if (chan < 36 || chan > 64)
+ return -1;
+ return 5000 + 5 * chan;
+ case 121: /* channels 100-140 */
+ case 122: /* channels 100-142; 40 MHz */
+ case 123: /* channels 104-136; 40 MHz */
+ if (chan < 100 || chan > 140)
+ return -1;
+ return 5000 + 5 * chan;
+ case 124: /* channels 149,153,157,161 */
+ case 126: /* channels 149,157; 40 MHz */
+ case 127: /* channels 153,161; 40 MHz */
+ if (chan < 149 || chan > 161)
+ return -1;
+ return 5000 + 5 * chan;
+ case 125: /* channels 149,153,157,161,165,169 */
+ if (chan < 149 || chan > 169)
+ return -1;
+ return 5000 + 5 * chan;
+ case 128: /* center freqs 42, 58, 106, 122, 138, 155; 80 MHz */
+ case 130: /* center freqs 42, 58, 106, 122, 138, 155; 80 MHz */
+ if (chan < 36 || chan > 161)
+ return -1;
+ return 5000 + 5 * chan;
+ case 129: /* center freqs 50, 114; 160 MHz */
+ if (chan < 50 || chan > 114)
+ return -1;
+ return 5000 + 5 * chan;
+ case 180: /* 60 GHz band, channels 1..4 */
+ if (chan < 1 || chan > 4)
+ return -1;
+ return 56160 + 2160 * chan;
+ }
+ return -1;
+}
+
+/**
+ * ieee80211_chan_to_freq - Convert channel info to frequency
+ * @country: Country code, if known; otherwise, global operating class is used
+ * @op_class: Operating class
+ * @chan: Channel number
+ * Returns: Frequency in MHz or -1 if the specified channel is unknown
+ */
+int ieee80211_chan_to_freq(const char *country, u8 op_class, u8 chan)
+{
+ int freq;
+
+ if (country_match(us_op_class_cc, country)) {
+ freq = ieee80211_chan_to_freq_us(op_class, chan);
+ if (freq > 0)
+ return freq;
+ }
+
+ if (country_match(eu_op_class_cc, country)) {
+ freq = ieee80211_chan_to_freq_eu(op_class, chan);
+ if (freq > 0)
+ return freq;
+ }
+
+ if (country_match(jp_op_class_cc, country)) {
+ freq = ieee80211_chan_to_freq_jp(op_class, chan);
+ if (freq > 0)
+ return freq;
+ }
+
+ if (country_match(cn_op_class_cc, country)) {
+ freq = ieee80211_chan_to_freq_cn(op_class, chan);
+ if (freq > 0)
+ return freq;
+ }
+
+ return ieee80211_chan_to_freq_global(op_class, chan);
+}
+
+
+int ieee80211_is_dfs(int freq)
+{
+ /* TODO: this could be more accurate to better cover all domains */
+ return (freq >= 5260 && freq <= 5320) || (freq >= 5500 && freq <= 5700);
+}
+
+
+static int is_11b(u8 rate)
+{
+ return rate == 0x02 || rate == 0x04 || rate == 0x0b || rate == 0x16;
+}
+
+
+int supp_rates_11b_only(struct ieee802_11_elems *elems)
+{
+ int num_11b = 0, num_others = 0;
+ int i;
+
+ if (elems->supp_rates == NULL && elems->ext_supp_rates == NULL)
+ return 0;
+
+ for (i = 0; elems->supp_rates && i < elems->supp_rates_len; i++) {
+ if (is_11b(elems->supp_rates[i]))
+ num_11b++;
+ else
+ num_others++;
+ }
+
+ for (i = 0; elems->ext_supp_rates && i < elems->ext_supp_rates_len;
+ i++) {
+ if (is_11b(elems->ext_supp_rates[i]))
+ num_11b++;
+ else
+ num_others++;
+ }
+
+ return num_11b > 0 && num_others == 0;
+}
+
+
+const char * fc2str(u16 fc)
+{
+ u16 stype = WLAN_FC_GET_STYPE(fc);
+#define C2S(x) case x: return #x;
+
+ switch (WLAN_FC_GET_TYPE(fc)) {
+ case WLAN_FC_TYPE_MGMT:
+ switch (stype) {
+ C2S(WLAN_FC_STYPE_ASSOC_REQ)
+ C2S(WLAN_FC_STYPE_ASSOC_RESP)
+ C2S(WLAN_FC_STYPE_REASSOC_REQ)
+ C2S(WLAN_FC_STYPE_REASSOC_RESP)
+ C2S(WLAN_FC_STYPE_PROBE_REQ)
+ C2S(WLAN_FC_STYPE_PROBE_RESP)
+ C2S(WLAN_FC_STYPE_BEACON)
+ C2S(WLAN_FC_STYPE_ATIM)
+ C2S(WLAN_FC_STYPE_DISASSOC)
+ C2S(WLAN_FC_STYPE_AUTH)
+ C2S(WLAN_FC_STYPE_DEAUTH)
+ C2S(WLAN_FC_STYPE_ACTION)
+ }
+ break;
+ case WLAN_FC_TYPE_CTRL:
+ switch (stype) {
+ C2S(WLAN_FC_STYPE_PSPOLL)
+ C2S(WLAN_FC_STYPE_RTS)
+ C2S(WLAN_FC_STYPE_CTS)
+ C2S(WLAN_FC_STYPE_ACK)
+ C2S(WLAN_FC_STYPE_CFEND)
+ C2S(WLAN_FC_STYPE_CFENDACK)
+ }
+ break;
+ case WLAN_FC_TYPE_DATA:
+ switch (stype) {
+ C2S(WLAN_FC_STYPE_DATA)
+ C2S(WLAN_FC_STYPE_DATA_CFACK)
+ C2S(WLAN_FC_STYPE_DATA_CFPOLL)
+ C2S(WLAN_FC_STYPE_DATA_CFACKPOLL)
+ C2S(WLAN_FC_STYPE_NULLFUNC)
+ C2S(WLAN_FC_STYPE_CFACK)
+ C2S(WLAN_FC_STYPE_CFPOLL)
+ C2S(WLAN_FC_STYPE_CFACKPOLL)
+ C2S(WLAN_FC_STYPE_QOS_DATA)
+ C2S(WLAN_FC_STYPE_QOS_DATA_CFACK)
+ C2S(WLAN_FC_STYPE_QOS_DATA_CFPOLL)
+ C2S(WLAN_FC_STYPE_QOS_DATA_CFACKPOLL)
+ C2S(WLAN_FC_STYPE_QOS_NULL)
+ C2S(WLAN_FC_STYPE_QOS_CFPOLL)
+ C2S(WLAN_FC_STYPE_QOS_CFACKPOLL)
+ }
+ break;
+ }
+ return "WLAN_FC_TYPE_UNKNOWN";
+#undef C2S
+}
+
+
+int mb_ies_info_by_ies(struct mb_ies_info *info, const u8 *ies_buf,
+ size_t ies_len)
+{
+ os_memset(info, 0, sizeof(*info));
+
+ while (ies_buf && ies_len >= 2 &&
+ info->nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
+ size_t len = 2 + ies_buf[1];
+
+ if (len > ies_len) {
+ wpa_hexdump(MSG_DEBUG, "Truncated IEs",
+ ies_buf, ies_len);
+ return -1;
+ }
+
+ if (ies_buf[0] == WLAN_EID_MULTI_BAND) {
+ wpa_printf(MSG_DEBUG, "MB IE of %zu bytes found", len);
+ info->ies[info->nof_ies].ie = ies_buf + 2;
+ info->ies[info->nof_ies].ie_len = ies_buf[1];
+ info->nof_ies++;
+ }
+
+ ies_len -= len;
+ ies_buf += len;
+ }
+
+ return 0;
+}
+
+
+struct wpabuf * mb_ies_by_info(struct mb_ies_info *info)
+{
+ struct wpabuf *mb_ies = NULL;
+
+ WPA_ASSERT(info != NULL);
+
+ if (info->nof_ies) {
+ u8 i;
+ size_t mb_ies_size = 0;
+
+ for (i = 0; i < info->nof_ies; i++)
+ mb_ies_size += 2 + info->ies[i].ie_len;
+
+ mb_ies = wpabuf_alloc(mb_ies_size);
+ if (mb_ies) {
+ for (i = 0; i < info->nof_ies; i++) {
+ wpabuf_put_u8(mb_ies, WLAN_EID_MULTI_BAND);
+ wpabuf_put_u8(mb_ies, info->ies[i].ie_len);
+ wpabuf_put_data(mb_ies,
+ info->ies[i].ie,
+ info->ies[i].ie_len);
+ }
+ }
+ }
+
+ return mb_ies;
+}
projects / mech_eap.git / blobdiff