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/*
* Driver interaction with extended Linux CFG8021
*
* 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.
*
*/
#include "hardware_legacy/driver_nl80211.h"
#include "wpa_supplicant_i.h"
#include "config.h"
#ifdef ANDROID
#include "android_drv.h"
#endif
#define MAX_WPSP2PIE_CMD_SIZE 512
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");
}
}
int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf,
size_t buf_len )
{
struct i802_bss *bss = priv;
struct wpa_driver_nl80211_data *drv = bss->drv;
struct ifreq ifr;
android_wifi_priv_cmd priv_cmd;
int ret = 0;
if (bss->ifindex <= 0 && bss->wdev_id > 0) {
/* DRIVER CMD received on the DEDICATED P2P Interface which doesn't
* have an NETDEVICE associated with it. So we have to re-route the
* command to the parent NETDEVICE
*/
struct wpa_supplicant *wpa_s = (struct wpa_supplicant *)(drv->ctx);
wpa_printf(MSG_DEBUG, "Re-routing DRIVER cmd to parent iface");
if (wpa_s && wpa_s->parent) {
/* Update the nl80211 pointers corresponding to parent iface */
bss = wpa_s->parent->drv_priv;
drv = bss->drv;
wpa_printf(MSG_DEBUG, "Re-routing command to iface: %s"
" cmd (%s)", bss->ifname, cmd);
}
}
if (os_strcasecmp(cmd, "STOP") == 0) {
linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0);
wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STOPPED");
} else if (os_strcasecmp(cmd, "START") == 0) {
linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1);
wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STARTED");
} else if (os_strcasecmp(cmd, "MACADDR") == 0) {
u8 macaddr[ETH_ALEN] = {};
ret = linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, macaddr);
if (!ret)
ret = os_snprintf(buf, buf_len,
"Macaddr = " MACSTR "\n", MAC2STR(macaddr));
} else { /* Use private command */
os_memcpy(buf, cmd, strlen(cmd) + 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 = buf_len;
priv_cmd.total_len = buf_len;
ifr.ifr_data = &priv_cmd;
if ((ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr)) < 0) {
wpa_printf(MSG_ERROR, "%s: failed to issue private commands\n", __func__);
wpa_driver_send_hang_msg(drv);
} else {
drv_errors = 0;
ret = 0;
if ((os_strcasecmp(cmd, "LINKSPEED") == 0) ||
(os_strcasecmp(cmd, "RSSI") == 0) ||
(os_strcasecmp(cmd, "GETBAND") == 0) ||
(os_strncasecmp(cmd, "WLS_BATCHING", 12) == 0))
ret = strlen(buf);
else if ((os_strncasecmp(cmd, "COUNTRY", 7) == 0) ||
(os_strncasecmp(cmd, "SETBAND", 7) == 0))
wpa_supplicant_event(drv->ctx,
EVENT_CHANNEL_LIST_CHANGED, NULL);
wpa_printf(MSG_DEBUG, "%s %s len = %d, %d", __func__, buf, ret, strlen(buf));
}
}
return ret;
}
int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration)
{
char buf[MAX_DRV_CMD_SIZE];
memset(buf, 0, sizeof(buf));
wpa_printf(MSG_DEBUG, "%s: Entry", __func__);
snprintf(buf, sizeof(buf), "P2P_SET_NOA %d %d %d", count, start, duration);
return wpa_driver_nl80211_driver_cmd(priv, buf, buf, strlen(buf)+1);
}
int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len)
{
/* Return 0 till we handle p2p_presence request completely in the driver */
return 0;
}
int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow)
{
char buf[MAX_DRV_CMD_SIZE];
memset(buf, 0, sizeof(buf));
wpa_printf(MSG_DEBUG, "%s: Entry", __func__);
snprintf(buf, sizeof(buf), "P2P_SET_PS %d %d %d", legacy_ps, opp_ps, ctwindow);
return wpa_driver_nl80211_driver_cmd(priv, buf, buf, strlen(buf) + 1);
}
int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon,
const struct wpabuf *proberesp,
const struct wpabuf *assocresp)
{
char buf[MAX_WPSP2PIE_CMD_SIZE];
struct wpabuf *ap_wps_p2p_ie = NULL;
char *_cmd = "SET_AP_WPS_P2P_IE";
char *pbuf;
int ret = 0;
int i;
struct cmd_desc {
int cmd;
const struct wpabuf *src;
} cmd_arr[] = {
{0x1, beacon},
{0x2, proberesp},
{0x4, assocresp},
{-1, NULL}
};
wpa_printf(MSG_DEBUG, "%s: Entry", __func__);
for (i = 0; cmd_arr[i].cmd != -1; i++) {
os_memset(buf, 0, sizeof(buf));
pbuf = buf;
pbuf += sprintf(pbuf, "%s %d", _cmd, cmd_arr[i].cmd);
*pbuf++ = '\0';
ap_wps_p2p_ie = cmd_arr[i].src ?
wpabuf_dup(cmd_arr[i].src) : NULL;
if (ap_wps_p2p_ie) {
os_memcpy(pbuf, wpabuf_head(ap_wps_p2p_ie), wpabuf_len(ap_wps_p2p_ie));
ret = wpa_driver_nl80211_driver_cmd(priv, buf, buf,
strlen(_cmd) + 3 + wpabuf_len(ap_wps_p2p_ie));
wpabuf_free(ap_wps_p2p_ie);
if (ret < 0)
break;
}
}
return ret;
}
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