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#include <machine/rtems-bsd-user-space.h>
/*
* Common driver-related functions
* Copyright (c) 2003-2011, 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);
}
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(*start))
start++;
if (*start == '\0')
break;
end = start;
while (!isblank(*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;
}
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