mirror of
https://github.com/vanhoefm/fragattacks.git
synced 2024-12-04 21:28:27 -05:00
62c8c7f721
Process the new nl80211 event NL80211_RADAR_PRE_CAC_EXPIRED to allow the driver to notify expiry of the CAC result on a channel. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
276 lines
5.5 KiB
C
276 lines
5.5 KiB
C
/*
|
|
* Common driver-related functions
|
|
* Copyright (c) 2003-2017, Jouni Malinen <j@w1.fi>
|
|
*
|
|
* This software may be distributed under the terms of the BSD license.
|
|
* See README for more details.
|
|
*/
|
|
|
|
#include "includes.h"
|
|
#include "utils/common.h"
|
|
#include "driver.h"
|
|
|
|
void wpa_scan_results_free(struct wpa_scan_results *res)
|
|
{
|
|
size_t i;
|
|
|
|
if (res == NULL)
|
|
return;
|
|
|
|
for (i = 0; i < res->num; i++)
|
|
os_free(res->res[i]);
|
|
os_free(res->res);
|
|
os_free(res);
|
|
}
|
|
|
|
|
|
const char * event_to_string(enum wpa_event_type event)
|
|
{
|
|
#define E2S(n) case EVENT_ ## n: return #n
|
|
switch (event) {
|
|
E2S(ASSOC);
|
|
E2S(DISASSOC);
|
|
E2S(MICHAEL_MIC_FAILURE);
|
|
E2S(SCAN_RESULTS);
|
|
E2S(ASSOCINFO);
|
|
E2S(INTERFACE_STATUS);
|
|
E2S(PMKID_CANDIDATE);
|
|
E2S(STKSTART);
|
|
E2S(TDLS);
|
|
E2S(FT_RESPONSE);
|
|
E2S(IBSS_RSN_START);
|
|
E2S(AUTH);
|
|
E2S(DEAUTH);
|
|
E2S(ASSOC_REJECT);
|
|
E2S(AUTH_TIMED_OUT);
|
|
E2S(ASSOC_TIMED_OUT);
|
|
E2S(WPS_BUTTON_PUSHED);
|
|
E2S(TX_STATUS);
|
|
E2S(RX_FROM_UNKNOWN);
|
|
E2S(RX_MGMT);
|
|
E2S(REMAIN_ON_CHANNEL);
|
|
E2S(CANCEL_REMAIN_ON_CHANNEL);
|
|
E2S(RX_PROBE_REQ);
|
|
E2S(NEW_STA);
|
|
E2S(EAPOL_RX);
|
|
E2S(SIGNAL_CHANGE);
|
|
E2S(INTERFACE_ENABLED);
|
|
E2S(INTERFACE_DISABLED);
|
|
E2S(CHANNEL_LIST_CHANGED);
|
|
E2S(INTERFACE_UNAVAILABLE);
|
|
E2S(BEST_CHANNEL);
|
|
E2S(UNPROT_DEAUTH);
|
|
E2S(UNPROT_DISASSOC);
|
|
E2S(STATION_LOW_ACK);
|
|
E2S(IBSS_PEER_LOST);
|
|
E2S(DRIVER_GTK_REKEY);
|
|
E2S(SCHED_SCAN_STOPPED);
|
|
E2S(DRIVER_CLIENT_POLL_OK);
|
|
E2S(EAPOL_TX_STATUS);
|
|
E2S(CH_SWITCH);
|
|
E2S(WNM);
|
|
E2S(CONNECT_FAILED_REASON);
|
|
E2S(DFS_RADAR_DETECTED);
|
|
E2S(DFS_CAC_FINISHED);
|
|
E2S(DFS_CAC_ABORTED);
|
|
E2S(DFS_NOP_FINISHED);
|
|
E2S(SURVEY);
|
|
E2S(SCAN_STARTED);
|
|
E2S(AVOID_FREQUENCIES);
|
|
E2S(NEW_PEER_CANDIDATE);
|
|
E2S(ACS_CHANNEL_SELECTED);
|
|
E2S(DFS_CAC_STARTED);
|
|
E2S(P2P_LO_STOP);
|
|
E2S(BEACON_LOSS);
|
|
E2S(DFS_PRE_CAC_EXPIRED);
|
|
}
|
|
|
|
return "UNKNOWN";
|
|
#undef E2S
|
|
}
|
|
|
|
|
|
const char * channel_width_to_string(enum chan_width width)
|
|
{
|
|
switch (width) {
|
|
case CHAN_WIDTH_20_NOHT:
|
|
return "20 MHz (no HT)";
|
|
case CHAN_WIDTH_20:
|
|
return "20 MHz";
|
|
case CHAN_WIDTH_40:
|
|
return "40 MHz";
|
|
case CHAN_WIDTH_80:
|
|
return "80 MHz";
|
|
case CHAN_WIDTH_80P80:
|
|
return "80+80 MHz";
|
|
case CHAN_WIDTH_160:
|
|
return "160 MHz";
|
|
default:
|
|
return "unknown";
|
|
}
|
|
}
|
|
|
|
|
|
int ht_supported(const struct hostapd_hw_modes *mode)
|
|
{
|
|
if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) {
|
|
/*
|
|
* The driver did not indicate whether it supports HT. Assume
|
|
* it does to avoid connection issues.
|
|
*/
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* IEEE Std 802.11n-2009 20.1.1:
|
|
* An HT non-AP STA shall support all EQM rates for one spatial stream.
|
|
*/
|
|
return mode->mcs_set[0] == 0xff;
|
|
}
|
|
|
|
|
|
int vht_supported(const struct hostapd_hw_modes *mode)
|
|
{
|
|
if (!(mode->flags & HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN)) {
|
|
/*
|
|
* The driver did not indicate whether it supports VHT. Assume
|
|
* it does to avoid connection issues.
|
|
*/
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* A VHT non-AP STA shall support MCS 0-7 for one spatial stream.
|
|
* TODO: Verify if this complies with the standard
|
|
*/
|
|
return (mode->vht_mcs_set[0] & 0x3) != 3;
|
|
}
|
|
|
|
|
|
static int wpa_check_wowlan_trigger(const char *start, const char *trigger,
|
|
int capa_trigger, u8 *param_trigger)
|
|
{
|
|
if (os_strcmp(start, trigger) != 0)
|
|
return 0;
|
|
if (!capa_trigger)
|
|
return 0;
|
|
|
|
*param_trigger = 1;
|
|
return 1;
|
|
}
|
|
|
|
|
|
struct wowlan_triggers *
|
|
wpa_get_wowlan_triggers(const char *wowlan_triggers,
|
|
const struct wpa_driver_capa *capa)
|
|
{
|
|
struct wowlan_triggers *triggers;
|
|
char *start, *end, *buf;
|
|
int last;
|
|
|
|
if (!wowlan_triggers)
|
|
return NULL;
|
|
|
|
buf = os_strdup(wowlan_triggers);
|
|
if (buf == NULL)
|
|
return NULL;
|
|
|
|
triggers = os_zalloc(sizeof(*triggers));
|
|
if (triggers == NULL)
|
|
goto out;
|
|
|
|
#define CHECK_TRIGGER(trigger) \
|
|
wpa_check_wowlan_trigger(start, #trigger, \
|
|
capa->wowlan_triggers.trigger, \
|
|
&triggers->trigger)
|
|
|
|
start = buf;
|
|
while (*start != '\0') {
|
|
while (isblank((unsigned char) *start))
|
|
start++;
|
|
if (*start == '\0')
|
|
break;
|
|
end = start;
|
|
while (!isblank((unsigned char) *end) && *end != '\0')
|
|
end++;
|
|
last = *end == '\0';
|
|
*end = '\0';
|
|
|
|
if (!CHECK_TRIGGER(any) &&
|
|
!CHECK_TRIGGER(disconnect) &&
|
|
!CHECK_TRIGGER(magic_pkt) &&
|
|
!CHECK_TRIGGER(gtk_rekey_failure) &&
|
|
!CHECK_TRIGGER(eap_identity_req) &&
|
|
!CHECK_TRIGGER(four_way_handshake) &&
|
|
!CHECK_TRIGGER(rfkill_release)) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"Unknown/unsupported wowlan trigger '%s'",
|
|
start);
|
|
os_free(triggers);
|
|
triggers = NULL;
|
|
goto out;
|
|
}
|
|
|
|
if (last)
|
|
break;
|
|
start = end + 1;
|
|
}
|
|
#undef CHECK_TRIGGER
|
|
|
|
out:
|
|
os_free(buf);
|
|
return triggers;
|
|
}
|
|
|
|
|
|
const char * driver_flag_to_string(u64 flag)
|
|
{
|
|
#define DF2S(x) case WPA_DRIVER_FLAGS_ ## x: return #x
|
|
switch (flag) {
|
|
DF2S(DRIVER_IE);
|
|
DF2S(SET_KEYS_AFTER_ASSOC);
|
|
DF2S(DFS_OFFLOAD);
|
|
DF2S(4WAY_HANDSHAKE);
|
|
DF2S(WIRED);
|
|
DF2S(SME);
|
|
DF2S(AP);
|
|
DF2S(SET_KEYS_AFTER_ASSOC_DONE);
|
|
DF2S(HT_2040_COEX);
|
|
DF2S(P2P_CONCURRENT);
|
|
DF2S(P2P_DEDICATED_INTERFACE);
|
|
DF2S(P2P_CAPABLE);
|
|
DF2S(AP_TEARDOWN_SUPPORT);
|
|
DF2S(P2P_MGMT_AND_NON_P2P);
|
|
DF2S(SANE_ERROR_CODES);
|
|
DF2S(OFFCHANNEL_TX);
|
|
DF2S(EAPOL_TX_STATUS);
|
|
DF2S(DEAUTH_TX_STATUS);
|
|
DF2S(BSS_SELECTION);
|
|
DF2S(TDLS_SUPPORT);
|
|
DF2S(TDLS_EXTERNAL_SETUP);
|
|
DF2S(PROBE_RESP_OFFLOAD);
|
|
DF2S(AP_UAPSD);
|
|
DF2S(INACTIVITY_TIMER);
|
|
DF2S(AP_MLME);
|
|
DF2S(SAE);
|
|
DF2S(OBSS_SCAN);
|
|
DF2S(IBSS);
|
|
DF2S(RADAR);
|
|
DF2S(DEDICATED_P2P_DEVICE);
|
|
DF2S(QOS_MAPPING);
|
|
DF2S(AP_CSA);
|
|
DF2S(MESH);
|
|
DF2S(ACS_OFFLOAD);
|
|
DF2S(KEY_MGMT_OFFLOAD);
|
|
DF2S(TDLS_CHANNEL_SWITCH);
|
|
DF2S(HT_IBSS);
|
|
DF2S(VHT_IBSS);
|
|
DF2S(SUPPORT_HW_MODE_ANY);
|
|
DF2S(OFFCHANNEL_SIMULTANEOUS);
|
|
DF2S(FULL_AP_CLIENT_STATE);
|
|
DF2S(P2P_LISTEN_OFFLOAD);
|
|
}
|
|
return "UNKNOWN";
|
|
#undef DF2S
|
|
}
|