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/*
* Driver interaction with Linux nl80211/cfg80211 - Android specific
* Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi>
* Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
* Copyright (c) 2009-2010, Atheros Communications
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "includes.h"
#include <sys/ioctl.h>
#include <net/if.h>
#include <netlink/genl/genl.h>
#include <netlink/genl/family.h>
#include <netlink/genl/ctrl.h>
#include <fcntl.h>
#include "utils/common.h"
#include "driver_nl80211.h"
#include "android_drv.h"
typedef struct android_wifi_priv_cmd {
char *buf;
int used_len;
int total_len;
} android_wifi_priv_cmd;
static int drv_errors = 0;
static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv)
{
drv_errors++;
if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) {
drv_errors = 0;
wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
}
}
static int android_priv_cmd(struct i802_bss *bss, const char *cmd)
{
struct wpa_driver_nl80211_data *drv = bss->drv;
struct ifreq ifr;
android_wifi_priv_cmd priv_cmd;
char buf[MAX_DRV_CMD_SIZE];
int ret;
os_memset(&ifr, 0, sizeof(ifr));
os_memset(&priv_cmd, 0, sizeof(priv_cmd));
os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
os_memset(buf, 0, sizeof(buf));
os_strlcpy(buf, cmd, sizeof(buf));
priv_cmd.buf = buf;
priv_cmd.used_len = sizeof(buf);
priv_cmd.total_len = sizeof(buf);
ifr.ifr_data = &priv_cmd;
ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
if (ret < 0) {
wpa_printf(MSG_ERROR, "%s: failed to issue private commands",
__func__);
wpa_driver_send_hang_msg(drv);
return ret;
}
drv_errors = 0;
return 0;
}
int android_pno_start(struct i802_bss *bss,
struct wpa_driver_scan_params *params)
{
struct wpa_driver_nl80211_data *drv = bss->drv;
struct ifreq ifr;
android_wifi_priv_cmd priv_cmd;
int ret = 0, i = 0, bp;
char buf[WEXT_PNO_MAX_COMMAND_SIZE];
bp = WEXT_PNOSETUP_HEADER_SIZE;
os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp);
buf[bp++] = WEXT_PNO_TLV_PREFIX;
buf[bp++] = WEXT_PNO_TLV_VERSION;
buf[bp++] = WEXT_PNO_TLV_SUBVERSION;
buf[bp++] = WEXT_PNO_TLV_RESERVED;
while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) {
/* Check that there is enough space needed for 1 more SSID, the
* other sections and null termination */
if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN +
WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf))
break;
wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan",
params->ssids[i].ssid,
params->ssids[i].ssid_len);
buf[bp++] = WEXT_PNO_SSID_SECTION;
buf[bp++] = params->ssids[i].ssid_len;
os_memcpy(&buf[bp], params->ssids[i].ssid,
params->ssids[i].ssid_len);
bp += params->ssids[i].ssid_len;
i++;
}
buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION;
os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x",
WEXT_PNO_SCAN_INTERVAL);
bp += WEXT_PNO_SCAN_INTERVAL_LENGTH;
buf[bp++] = WEXT_PNO_REPEAT_SECTION;
os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x",
WEXT_PNO_REPEAT);
bp += WEXT_PNO_REPEAT_LENGTH;
buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION;
os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x",
WEXT_PNO_MAX_REPEAT);
bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1;
memset(&ifr, 0, sizeof(ifr));
memset(&priv_cmd, 0, sizeof(priv_cmd));
os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
priv_cmd.buf = buf;
priv_cmd.used_len = bp;
priv_cmd.total_len = bp;
ifr.ifr_data = &priv_cmd;
ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
if (ret < 0) {
wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d",
ret);
wpa_driver_send_hang_msg(drv);
return ret;
}
drv_errors = 0;
return android_priv_cmd(bss, "PNOFORCE 1");
}
int android_pno_stop(struct i802_bss *bss)
{
return android_priv_cmd(bss, "PNOFORCE 0");
}
#ifdef ANDROID_P2P
#ifdef ANDROID_LIB_STUB
int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration)
{
return 0;
}
int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len)
{
return 0;
}
int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow)
{
return -1;
}
int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon,
const struct wpabuf *proberesp,
const struct wpabuf *assocresp)
{
return 0;
}
#endif /* ANDROID_LIB_STUB */
#endif /* ANDROID_P2P */
int android_nl_socket_set_nonblocking(struct nl_handle *handle)
{
return fcntl(nl_socket_get_fd(handle), F_SETFL, O_NONBLOCK);
}
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