mirror of
https://github.com/vanhoefm/fragattacks.git
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de92314033
This allows external programs to fetch the driver inactivity value for a specific STA ("STA <addr>" hostapd control interface command). Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
584 lines
14 KiB
C
584 lines
14 KiB
C
/*
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* Control interface for shared AP commands
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* Copyright (c) 2004-2014, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#include "utils/includes.h"
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#include "utils/common.h"
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#include "common/ieee802_11_defs.h"
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#include "common/sae.h"
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#include "eapol_auth/eapol_auth_sm.h"
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#include "fst/fst_ctrl_iface.h"
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#include "hostapd.h"
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#include "ieee802_1x.h"
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#include "wpa_auth.h"
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#include "ieee802_11.h"
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#include "sta_info.h"
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#include "wps_hostapd.h"
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#include "p2p_hostapd.h"
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#include "ctrl_iface_ap.h"
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#include "ap_drv_ops.h"
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#include "mbo_ap.h"
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static int hostapd_get_sta_tx_rx(struct hostapd_data *hapd,
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struct sta_info *sta,
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char *buf, size_t buflen)
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{
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struct hostap_sta_driver_data data;
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int ret;
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if (hostapd_drv_read_sta_data(hapd, &data, sta->addr) < 0)
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return 0;
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ret = os_snprintf(buf, buflen, "rx_packets=%lu\ntx_packets=%lu\n"
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"rx_bytes=%llu\ntx_bytes=%llu\ninactive_msec=%lu\n",
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data.rx_packets, data.tx_packets,
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data.rx_bytes, data.tx_bytes, data.inactive_msec);
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if (os_snprintf_error(buflen, ret))
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return 0;
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return ret;
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}
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static int hostapd_get_sta_conn_time(struct sta_info *sta,
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char *buf, size_t buflen)
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{
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struct os_reltime age;
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int ret;
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if (!sta->connected_time.sec)
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return 0;
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os_reltime_age(&sta->connected_time, &age);
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ret = os_snprintf(buf, buflen, "connected_time=%u\n",
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(unsigned int) age.sec);
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if (os_snprintf_error(buflen, ret))
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return 0;
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return ret;
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}
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static const char * timeout_next_str(int val)
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{
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switch (val) {
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case STA_NULLFUNC:
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return "NULLFUNC POLL";
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case STA_DISASSOC:
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return "DISASSOC";
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case STA_DEAUTH:
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return "DEAUTH";
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case STA_REMOVE:
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return "REMOVE";
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case STA_DISASSOC_FROM_CLI:
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return "DISASSOC_FROM_CLI";
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}
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return "?";
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}
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static int hostapd_ctrl_iface_sta_mib(struct hostapd_data *hapd,
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struct sta_info *sta,
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char *buf, size_t buflen)
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{
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int len, res, ret, i;
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if (!sta)
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return 0;
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len = 0;
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ret = os_snprintf(buf + len, buflen - len, MACSTR "\nflags=",
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MAC2STR(sta->addr));
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if (os_snprintf_error(buflen - len, ret))
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return len;
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len += ret;
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ret = ap_sta_flags_txt(sta->flags, buf + len, buflen - len);
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if (ret < 0)
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return len;
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len += ret;
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ret = os_snprintf(buf + len, buflen - len, "\naid=%d\ncapability=0x%x\n"
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"listen_interval=%d\nsupported_rates=",
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sta->aid, sta->capability, sta->listen_interval);
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if (os_snprintf_error(buflen - len, ret))
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return len;
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len += ret;
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for (i = 0; i < sta->supported_rates_len; i++) {
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ret = os_snprintf(buf + len, buflen - len, "%02x%s",
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sta->supported_rates[i],
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i + 1 < sta->supported_rates_len ? " " : "");
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if (os_snprintf_error(buflen - len, ret))
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return len;
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len += ret;
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}
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ret = os_snprintf(buf + len, buflen - len, "\ntimeout_next=%s\n",
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timeout_next_str(sta->timeout_next));
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if (os_snprintf_error(buflen - len, ret))
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return len;
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len += ret;
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res = ieee802_11_get_mib_sta(hapd, sta, buf + len, buflen - len);
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if (res >= 0)
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len += res;
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res = wpa_get_mib_sta(sta->wpa_sm, buf + len, buflen - len);
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if (res >= 0)
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len += res;
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res = ieee802_1x_get_mib_sta(hapd, sta, buf + len, buflen - len);
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if (res >= 0)
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len += res;
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res = hostapd_wps_get_mib_sta(hapd, sta->addr, buf + len,
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buflen - len);
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if (res >= 0)
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len += res;
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res = hostapd_p2p_get_mib_sta(hapd, sta, buf + len, buflen - len);
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if (res >= 0)
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len += res;
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len += hostapd_get_sta_tx_rx(hapd, sta, buf + len, buflen - len);
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len += hostapd_get_sta_conn_time(sta, buf + len, buflen - len);
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#ifdef CONFIG_SAE
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if (sta->sae && sta->sae->state == SAE_ACCEPTED) {
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res = os_snprintf(buf + len, buflen - len, "sae_group=%d\n",
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sta->sae->group);
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if (!os_snprintf_error(buflen - len, res))
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len += res;
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}
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#endif /* CONFIG_SAE */
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if (sta->vlan_id > 0) {
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res = os_snprintf(buf + len, buflen - len, "vlan_id=%d\n",
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sta->vlan_id);
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if (!os_snprintf_error(buflen - len, res))
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len += res;
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}
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res = mbo_ap_get_info(sta, buf + len, buflen - len);
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if (res >= 0)
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len += res;
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if (sta->supp_op_classes &&
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buflen - len > (unsigned) (17 + 2 * sta->supp_op_classes[0])) {
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len += os_snprintf(buf + len, buflen - len, "supp_op_classes=");
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len += wpa_snprintf_hex(buf + len, buflen - len,
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sta->supp_op_classes + 1,
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sta->supp_op_classes[0]);
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len += os_snprintf(buf + len, buflen - len, "\n");
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}
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return len;
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}
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int hostapd_ctrl_iface_sta_first(struct hostapd_data *hapd,
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char *buf, size_t buflen)
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{
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return hostapd_ctrl_iface_sta_mib(hapd, hapd->sta_list, buf, buflen);
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}
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int hostapd_ctrl_iface_sta(struct hostapd_data *hapd, const char *txtaddr,
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char *buf, size_t buflen)
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{
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u8 addr[ETH_ALEN];
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int ret;
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const char *pos;
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struct sta_info *sta;
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if (hwaddr_aton(txtaddr, addr)) {
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ret = os_snprintf(buf, buflen, "FAIL\n");
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if (os_snprintf_error(buflen, ret))
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return 0;
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return ret;
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}
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sta = ap_get_sta(hapd, addr);
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if (sta == NULL)
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return -1;
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pos = os_strchr(txtaddr, ' ');
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if (pos) {
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pos++;
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#ifdef HOSTAPD_DUMP_STATE
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if (os_strcmp(pos, "eapol") == 0) {
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if (sta->eapol_sm == NULL)
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return -1;
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return eapol_auth_dump_state(sta->eapol_sm, buf,
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buflen);
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}
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#endif /* HOSTAPD_DUMP_STATE */
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return -1;
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}
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ret = hostapd_ctrl_iface_sta_mib(hapd, sta, buf, buflen);
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ret += fst_ctrl_iface_mb_info(addr, buf + ret, buflen - ret);
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return ret;
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}
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int hostapd_ctrl_iface_sta_next(struct hostapd_data *hapd, const char *txtaddr,
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char *buf, size_t buflen)
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{
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u8 addr[ETH_ALEN];
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struct sta_info *sta;
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int ret;
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if (hwaddr_aton(txtaddr, addr) ||
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(sta = ap_get_sta(hapd, addr)) == NULL) {
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ret = os_snprintf(buf, buflen, "FAIL\n");
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if (os_snprintf_error(buflen, ret))
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return 0;
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return ret;
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}
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if (!sta->next)
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return 0;
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return hostapd_ctrl_iface_sta_mib(hapd, sta->next, buf, buflen);
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}
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#ifdef CONFIG_P2P_MANAGER
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static int p2p_manager_disconnect(struct hostapd_data *hapd, u16 stype,
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u8 minor_reason_code, const u8 *addr)
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{
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struct ieee80211_mgmt *mgmt;
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int ret;
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u8 *pos;
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if (hapd->driver->send_frame == NULL)
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return -1;
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mgmt = os_zalloc(sizeof(*mgmt) + 100);
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if (mgmt == NULL)
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return -1;
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mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, stype);
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wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "P2P: Disconnect STA " MACSTR
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" with minor reason code %u (stype=%u (%s))",
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MAC2STR(addr), minor_reason_code, stype,
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fc2str(mgmt->frame_control));
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os_memcpy(mgmt->da, addr, ETH_ALEN);
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os_memcpy(mgmt->sa, hapd->own_addr, ETH_ALEN);
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os_memcpy(mgmt->bssid, hapd->own_addr, ETH_ALEN);
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if (stype == WLAN_FC_STYPE_DEAUTH) {
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mgmt->u.deauth.reason_code =
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host_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID);
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pos = (u8 *) (&mgmt->u.deauth.reason_code + 1);
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} else {
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mgmt->u.disassoc.reason_code =
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host_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID);
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pos = (u8 *) (&mgmt->u.disassoc.reason_code + 1);
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}
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*pos++ = WLAN_EID_VENDOR_SPECIFIC;
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*pos++ = 4 + 3 + 1;
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WPA_PUT_BE32(pos, P2P_IE_VENDOR_TYPE);
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pos += 4;
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*pos++ = P2P_ATTR_MINOR_REASON_CODE;
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WPA_PUT_LE16(pos, 1);
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pos += 2;
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*pos++ = minor_reason_code;
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ret = hapd->driver->send_frame(hapd->drv_priv, (u8 *) mgmt,
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pos - (u8 *) mgmt, 1);
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os_free(mgmt);
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return ret < 0 ? -1 : 0;
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}
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#endif /* CONFIG_P2P_MANAGER */
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int hostapd_ctrl_iface_deauthenticate(struct hostapd_data *hapd,
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const char *txtaddr)
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{
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u8 addr[ETH_ALEN];
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struct sta_info *sta;
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const char *pos;
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u16 reason = WLAN_REASON_PREV_AUTH_NOT_VALID;
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wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "CTRL_IFACE DEAUTHENTICATE %s",
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txtaddr);
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if (hwaddr_aton(txtaddr, addr))
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return -1;
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pos = os_strstr(txtaddr, " reason=");
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if (pos)
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reason = atoi(pos + 8);
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pos = os_strstr(txtaddr, " test=");
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if (pos) {
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struct ieee80211_mgmt mgmt;
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int encrypt;
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if (hapd->driver->send_frame == NULL)
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return -1;
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pos += 6;
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encrypt = atoi(pos);
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os_memset(&mgmt, 0, sizeof(mgmt));
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mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
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WLAN_FC_STYPE_DEAUTH);
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os_memcpy(mgmt.da, addr, ETH_ALEN);
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os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
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os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
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mgmt.u.deauth.reason_code = host_to_le16(reason);
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if (hapd->driver->send_frame(hapd->drv_priv, (u8 *) &mgmt,
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IEEE80211_HDRLEN +
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sizeof(mgmt.u.deauth),
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encrypt) < 0)
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return -1;
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return 0;
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}
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#ifdef CONFIG_P2P_MANAGER
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pos = os_strstr(txtaddr, " p2p=");
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if (pos) {
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return p2p_manager_disconnect(hapd, WLAN_FC_STYPE_DEAUTH,
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atoi(pos + 5), addr);
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}
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#endif /* CONFIG_P2P_MANAGER */
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hostapd_drv_sta_deauth(hapd, addr, reason);
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sta = ap_get_sta(hapd, addr);
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if (sta)
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ap_sta_deauthenticate(hapd, sta, reason);
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else if (addr[0] == 0xff)
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hostapd_free_stas(hapd);
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return 0;
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}
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int hostapd_ctrl_iface_disassociate(struct hostapd_data *hapd,
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const char *txtaddr)
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{
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u8 addr[ETH_ALEN];
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struct sta_info *sta;
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const char *pos;
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u16 reason = WLAN_REASON_PREV_AUTH_NOT_VALID;
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wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "CTRL_IFACE DISASSOCIATE %s",
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txtaddr);
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if (hwaddr_aton(txtaddr, addr))
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return -1;
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pos = os_strstr(txtaddr, " reason=");
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if (pos)
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reason = atoi(pos + 8);
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pos = os_strstr(txtaddr, " test=");
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if (pos) {
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struct ieee80211_mgmt mgmt;
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int encrypt;
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if (hapd->driver->send_frame == NULL)
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return -1;
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pos += 6;
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encrypt = atoi(pos);
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os_memset(&mgmt, 0, sizeof(mgmt));
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mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
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WLAN_FC_STYPE_DISASSOC);
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os_memcpy(mgmt.da, addr, ETH_ALEN);
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os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
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os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
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mgmt.u.disassoc.reason_code = host_to_le16(reason);
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if (hapd->driver->send_frame(hapd->drv_priv, (u8 *) &mgmt,
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IEEE80211_HDRLEN +
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sizeof(mgmt.u.deauth),
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encrypt) < 0)
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return -1;
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return 0;
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}
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#ifdef CONFIG_P2P_MANAGER
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pos = os_strstr(txtaddr, " p2p=");
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if (pos) {
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return p2p_manager_disconnect(hapd, WLAN_FC_STYPE_DISASSOC,
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atoi(pos + 5), addr);
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}
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#endif /* CONFIG_P2P_MANAGER */
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hostapd_drv_sta_disassoc(hapd, addr, reason);
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sta = ap_get_sta(hapd, addr);
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if (sta)
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ap_sta_disassociate(hapd, sta, reason);
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else if (addr[0] == 0xff)
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hostapd_free_stas(hapd);
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return 0;
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}
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int hostapd_ctrl_iface_status(struct hostapd_data *hapd, char *buf,
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size_t buflen)
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{
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struct hostapd_iface *iface = hapd->iface;
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int len = 0, ret;
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size_t i;
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ret = os_snprintf(buf + len, buflen - len,
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"state=%s\n"
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"phy=%s\n"
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"freq=%d\n"
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"num_sta_non_erp=%d\n"
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"num_sta_no_short_slot_time=%d\n"
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"num_sta_no_short_preamble=%d\n"
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"olbc=%d\n"
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"num_sta_ht_no_gf=%d\n"
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"num_sta_no_ht=%d\n"
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"num_sta_ht_20_mhz=%d\n"
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"num_sta_ht40_intolerant=%d\n"
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"olbc_ht=%d\n"
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"ht_op_mode=0x%x\n",
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hostapd_state_text(iface->state),
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iface->phy,
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iface->freq,
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iface->num_sta_non_erp,
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iface->num_sta_no_short_slot_time,
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iface->num_sta_no_short_preamble,
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iface->olbc,
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iface->num_sta_ht_no_gf,
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iface->num_sta_no_ht,
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iface->num_sta_ht_20mhz,
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iface->num_sta_ht40_intolerant,
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iface->olbc_ht,
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iface->ht_op_mode);
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if (os_snprintf_error(buflen - len, ret))
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return len;
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len += ret;
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if (!iface->cac_started || !iface->dfs_cac_ms) {
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ret = os_snprintf(buf + len, buflen - len,
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"cac_time_seconds=%d\n"
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"cac_time_left_seconds=N/A\n",
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iface->dfs_cac_ms / 1000);
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} else {
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/* CAC started and CAC time set - calculate remaining time */
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struct os_reltime now;
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unsigned int left_time;
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|
|
os_reltime_age(&iface->dfs_cac_start, &now);
|
|
left_time = iface->dfs_cac_ms / 1000 - now.sec;
|
|
ret = os_snprintf(buf + len, buflen - len,
|
|
"cac_time_seconds=%u\n"
|
|
"cac_time_left_seconds=%u\n",
|
|
iface->dfs_cac_ms / 1000,
|
|
left_time);
|
|
}
|
|
if (os_snprintf_error(buflen - len, ret))
|
|
return len;
|
|
len += ret;
|
|
|
|
ret = os_snprintf(buf + len, buflen - len,
|
|
"channel=%u\n"
|
|
"secondary_channel=%d\n"
|
|
"ieee80211n=%d\n"
|
|
"ieee80211ac=%d\n"
|
|
"vht_oper_chwidth=%d\n"
|
|
"vht_oper_centr_freq_seg0_idx=%d\n"
|
|
"vht_oper_centr_freq_seg1_idx=%d\n",
|
|
iface->conf->channel,
|
|
iface->conf->secondary_channel,
|
|
iface->conf->ieee80211n,
|
|
iface->conf->ieee80211ac,
|
|
iface->conf->vht_oper_chwidth,
|
|
iface->conf->vht_oper_centr_freq_seg0_idx,
|
|
iface->conf->vht_oper_centr_freq_seg1_idx);
|
|
if (os_snprintf_error(buflen - len, ret))
|
|
return len;
|
|
len += ret;
|
|
|
|
for (i = 0; i < iface->num_bss; i++) {
|
|
struct hostapd_data *bss = iface->bss[i];
|
|
ret = os_snprintf(buf + len, buflen - len,
|
|
"bss[%d]=%s\n"
|
|
"bssid[%d]=" MACSTR "\n"
|
|
"ssid[%d]=%s\n"
|
|
"num_sta[%d]=%d\n",
|
|
(int) i, bss->conf->iface,
|
|
(int) i, MAC2STR(bss->own_addr),
|
|
(int) i,
|
|
wpa_ssid_txt(bss->conf->ssid.ssid,
|
|
bss->conf->ssid.ssid_len),
|
|
(int) i, bss->num_sta);
|
|
if (os_snprintf_error(buflen - len, ret))
|
|
return len;
|
|
len += ret;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
|
|
int hostapd_parse_csa_settings(const char *pos,
|
|
struct csa_settings *settings)
|
|
{
|
|
char *end;
|
|
|
|
os_memset(settings, 0, sizeof(*settings));
|
|
settings->cs_count = strtol(pos, &end, 10);
|
|
if (pos == end) {
|
|
wpa_printf(MSG_ERROR, "chanswitch: invalid cs_count provided");
|
|
return -1;
|
|
}
|
|
|
|
settings->freq_params.freq = atoi(end);
|
|
if (settings->freq_params.freq == 0) {
|
|
wpa_printf(MSG_ERROR, "chanswitch: invalid freq provided");
|
|
return -1;
|
|
}
|
|
|
|
#define SET_CSA_SETTING(str) \
|
|
do { \
|
|
const char *pos2 = os_strstr(pos, " " #str "="); \
|
|
if (pos2) { \
|
|
pos2 += sizeof(" " #str "=") - 1; \
|
|
settings->freq_params.str = atoi(pos2); \
|
|
} \
|
|
} while (0)
|
|
|
|
SET_CSA_SETTING(center_freq1);
|
|
SET_CSA_SETTING(center_freq2);
|
|
SET_CSA_SETTING(bandwidth);
|
|
SET_CSA_SETTING(sec_channel_offset);
|
|
settings->freq_params.ht_enabled = !!os_strstr(pos, " ht");
|
|
settings->freq_params.vht_enabled = !!os_strstr(pos, " vht");
|
|
settings->block_tx = !!os_strstr(pos, " blocktx");
|
|
#undef SET_CSA_SETTING
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int hostapd_ctrl_iface_stop_ap(struct hostapd_data *hapd)
|
|
{
|
|
return hostapd_drv_stop_ap(hapd);
|
|
}
|
|
|
|
|
|
int hostapd_ctrl_iface_pmksa_list(struct hostapd_data *hapd, char *buf,
|
|
size_t len)
|
|
{
|
|
return wpa_auth_pmksa_list(hapd->wpa_auth, buf, len);
|
|
}
|
|
|
|
|
|
void hostapd_ctrl_iface_pmksa_flush(struct hostapd_data *hapd)
|
|
{
|
|
wpa_auth_pmksa_flush(hapd->wpa_auth);
|
|
}
|