qcwcn/wpa_supplicant_8_lib/driver_cmd_nl80211.c - BlakKatRom/platform_hardware_qcom_wlan - Gitiles

 /*
  * 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 "driver_nl80211.h"
 #include "wpa_supplicant_i.h"
 #include "config.h"
 #ifdef ANDROID
 #include "android_drv.h"
 #endif

 #define WPA_PS_ENABLED		0
 #define WPA_PS_DISABLED		1

 #define MAX_WPSP2PIE_CMD_SIZE		512

 typedef struct android_wifi_priv_cmd {
 	char *buf;
 	int used_len;
 	int total_len;
 } android_wifi_priv_cmd;

 int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, struct nl_msg *msg,
 		       int (*valid_handler)(struct nl_msg *, void *),
 		       void *valid_data);

 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 wpa_driver_set_power_save(void *priv, int state)
 {
 	struct i802_bss *bss = priv;
 	struct wpa_driver_nl80211_data *drv = bss->drv;
 	struct nl_msg *msg;
 	int ret = -1;
 	enum nl80211_ps_state ps_state;

 	msg = nlmsg_alloc();
 	if (!msg)
 		return -1;

 	genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 0, 0,
 		    NL80211_CMD_SET_POWER_SAVE, 0);

 	if (state == WPA_PS_ENABLED)
 		ps_state = NL80211_PS_ENABLED;
 	else
 		ps_state = NL80211_PS_DISABLED;

 	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
 	NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);

 	ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 	msg = NULL;
 	if (ret < 0)
 		wpa_printf(MSG_ERROR, "nl80211: Set power mode fail: %d", ret);
 nla_put_failure:
 	nlmsg_free(msg);
 	return ret;
 }

 static int get_power_mode_handler(struct nl_msg *msg, void *arg)
 {
 	struct nlattr *tb[NL80211_ATTR_MAX + 1];
 	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
 	int *state = (int *)arg;

 	nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
 		  genlmsg_attrlen(gnlh, 0), NULL);

 	if (!tb[NL80211_ATTR_PS_STATE])
 		return NL_SKIP;

 	if (state) {
 		*state = (int)nla_get_u32(tb[NL80211_ATTR_PS_STATE]);
 		wpa_printf(MSG_DEBUG, "nl80211: Get power mode = %d", *state);
 		*state = (*state == NL80211_PS_ENABLED) ?
 				WPA_PS_ENABLED : WPA_PS_DISABLED;
 	}

 	return NL_SKIP;
 }

 static int wpa_driver_get_power_save(void *priv, int *state)
 {
 	struct i802_bss *bss = priv;
 	struct wpa_driver_nl80211_data *drv = bss->drv;
 	struct nl_msg *msg;
 	int ret = -1;
 	enum nl80211_ps_state ps_state;

 	msg = nlmsg_alloc();
 	if (!msg)
 		return -1;

 	genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 0, 0,
 		    NL80211_CMD_GET_POWER_SAVE, 0);

 	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);

 	ret = send_and_recv_msgs(drv, msg, get_power_mode_handler, state);
 	msg = NULL;
 	if (ret < 0)
 		wpa_printf(MSG_ERROR, "nl80211: Get power mode fail: %d", ret);
 nla_put_failure:
 	nlmsg_free(msg);
 	return ret;
 }

 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 (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 if (os_strcasecmp(cmd, "RELOAD") == 0) {
 		wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
 	} else if (os_strncasecmp(cmd, "POWERMODE ", 10) == 0) {
 		int state;

 		state = atoi(cmd + 10);
 		ret = wpa_driver_set_power_save(priv, state);
 		if (ret < 0)
 			wpa_driver_send_hang_msg(drv);
 		else
 			drv_errors = 0;
 	} else if (os_strncasecmp(cmd, "GETPOWER", 8) == 0) {
 		int state = -1;

 		ret = wpa_driver_get_power_save(priv, &state);
 		if (!ret && (state != -1)) {
 			ret = os_snprintf(buf, buf_len, "POWERMODE = %d\n", state);
 			drv_errors = 0;
 		} else {
 			wpa_driver_send_hang_msg(drv);
 		}
 	} else { /* Use private command */
 		memset(&ifr, 0, sizeof(ifr));
 		memset(&priv_cmd, 0, sizeof(priv_cmd));
 		os_memcpy(buf, cmd, strlen(cmd) + 1);
 		os_strncpy(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__);
 		} else {
 			drv_errors = 0;
 			ret = 0;
 			if ((os_strcasecmp(cmd, "LINKSPEED") == 0) ||
 			    (os_strcasecmp(cmd, "RSSI") == 0) ||
 			    (os_strcasecmp(cmd, "GETBAND") == 0) )
 				ret = strlen(buf);
 			else if (os_strcasecmp(cmd, "COUNTRY") == 0)
 				wpa_supplicant_event(drv->ctx,
 					EVENT_CHANNEL_LIST_CHANGED, NULL);
 			else if (os_strncasecmp(cmd, "SETBAND", 7) == 0)
 				wpa_printf(MSG_DEBUG, "%s: %s ", __func__, cmd);
 			else if (os_strcasecmp(cmd, "P2P_DEV_ADDR") == 0)
 				wpa_printf(MSG_DEBUG, "%s: P2P: Device address ("MACSTR")",
 					__func__, MAC2STR(buf));
 			else if (os_strcasecmp(cmd, "P2P_SET_PS") == 0)
 				wpa_printf(MSG_DEBUG, "%s: P2P: %s ", __func__, buf);
 			else if (os_strcasecmp(cmd, "P2P_SET_NOA") == 0)
 				wpa_printf(MSG_DEBUG, "%s: P2P: %s ", __func__, buf);
 			else
 				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);
 }
	/*
	* 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 "driver_nl80211.h"
	#include "wpa_supplicant_i.h"
	#include "config.h"
	#ifdef ANDROID
	#include "android_drv.h"
	#endif

	#define WPA_PS_ENABLED 0
	#define WPA_PS_DISABLED 1

	#define MAX_WPSP2PIE_CMD_SIZE 512

	typedef struct android_wifi_priv_cmd {
	char *buf;
	int used_len;
	int total_len;
	} android_wifi_priv_cmd;

	int send_and_recv_msgs(struct wpa_driver_nl80211_data drv, struct nl_msg msg,
	int (valid_handler)(struct nl_msg , void *),
	void *valid_data);

	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 wpa_driver_set_power_save(void *priv, int state)
	{
	struct i802_bss *bss = priv;
	struct wpa_driver_nl80211_data *drv = bss->drv;
	struct nl_msg *msg;
	int ret = -1;
	enum nl80211_ps_state ps_state;

	msg = nlmsg_alloc();
	if (!msg)
	return -1;

	genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 0, 0,
	NL80211_CMD_SET_POWER_SAVE, 0);

	if (state == WPA_PS_ENABLED)
	ps_state = NL80211_PS_ENABLED;
	else
	ps_state = NL80211_PS_DISABLED;

	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
	NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);

	ret = send_and_recv_msgs(drv, msg, NULL, NULL);
	msg = NULL;
	if (ret < 0)
	wpa_printf(MSG_ERROR, "nl80211: Set power mode fail: %d", ret);
	nla_put_failure:
	nlmsg_free(msg);
	return ret;
	}

	static int get_power_mode_handler(struct nl_msg msg, void arg)
	{
	struct nlattr *tb[NL80211_ATTR_MAX + 1];
	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
	int state = (int )arg;

	nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
	genlmsg_attrlen(gnlh, 0), NULL);

	if (!tb[NL80211_ATTR_PS_STATE])
	return NL_SKIP;

	if (state) {
	*state = (int)nla_get_u32(tb[NL80211_ATTR_PS_STATE]);
	wpa_printf(MSG_DEBUG, "nl80211: Get power mode = %d", *state);
	state = (state == NL80211_PS_ENABLED) ?
	WPA_PS_ENABLED : WPA_PS_DISABLED;
	}

	return NL_SKIP;
	}

	static int wpa_driver_get_power_save(void priv, int state)
	{
	struct i802_bss *bss = priv;
	struct wpa_driver_nl80211_data *drv = bss->drv;
	struct nl_msg *msg;
	int ret = -1;
	enum nl80211_ps_state ps_state;

	msg = nlmsg_alloc();
	if (!msg)
	return -1;

	genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 0, 0,
	NL80211_CMD_GET_POWER_SAVE, 0);

	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);

	ret = send_and_recv_msgs(drv, msg, get_power_mode_handler, state);
	msg = NULL;
	if (ret < 0)
	wpa_printf(MSG_ERROR, "nl80211: Get power mode fail: %d", ret);
	nla_put_failure:
	nlmsg_free(msg);
	return ret;
	}

	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 (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 if (os_strcasecmp(cmd, "RELOAD") == 0) {
	wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
	} else if (os_strncasecmp(cmd, "POWERMODE ", 10) == 0) {
	int state;

	state = atoi(cmd + 10);
	ret = wpa_driver_set_power_save(priv, state);
	if (ret < 0)
	wpa_driver_send_hang_msg(drv);
	else
	drv_errors = 0;
	} else if (os_strncasecmp(cmd, "GETPOWER", 8) == 0) {
	int state = -1;

	ret = wpa_driver_get_power_save(priv, &state);
	if (!ret && (state != -1)) {
	ret = os_snprintf(buf, buf_len, "POWERMODE = %d\n", state);
	drv_errors = 0;
	} else {
	wpa_driver_send_hang_msg(drv);
	}
	} else { /* Use private command */
	memset(&ifr, 0, sizeof(ifr));
	memset(&priv_cmd, 0, sizeof(priv_cmd));
	os_memcpy(buf, cmd, strlen(cmd) + 1);
	os_strncpy(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__);
	} else {
	drv_errors = 0;
	ret = 0;
	if ((os_strcasecmp(cmd, "LINKSPEED") == 0) \|\|
	(os_strcasecmp(cmd, "RSSI") == 0) \|\|
	(os_strcasecmp(cmd, "GETBAND") == 0) )
	ret = strlen(buf);
	else if (os_strcasecmp(cmd, "COUNTRY") == 0)
	wpa_supplicant_event(drv->ctx,
	EVENT_CHANNEL_LIST_CHANGED, NULL);
	else if (os_strncasecmp(cmd, "SETBAND", 7) == 0)
	wpa_printf(MSG_DEBUG, "%s: %s ", __func__, cmd);
	else if (os_strcasecmp(cmd, "P2P_DEV_ADDR") == 0)
	wpa_printf(MSG_DEBUG, "%s: P2P: Device address ("MACSTR")",
	__func__, MAC2STR(buf));
	else if (os_strcasecmp(cmd, "P2P_SET_PS") == 0)
	wpa_printf(MSG_DEBUG, "%s: P2P: %s ", __func__, buf);
	else if (os_strcasecmp(cmd, "P2P_SET_NOA") == 0)
	wpa_printf(MSG_DEBUG, "%s: P2P: %s ", __func__, buf);
	else
	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);
	}