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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_WIFI_SYSTEM_WIFI_H
#define ANDROID_WIFI_SYSTEM_WIFI_H
#include <cstddef>
namespace android {
namespace wifi_system {
extern const char kWiFiEntropyFile[];
/**
* Open a connection to supplicant
*
* @return 0 on success, < 0 on failure.
*/
int wifi_connect_to_supplicant();
/**
* Close connection to supplicant
*
* @return 0 on success, < 0 on failure.
*/
void wifi_close_supplicant_connection();
/**
* wifi_wait_for_event() performs a blocking call to
* get a Wi-Fi event and returns a string representing
* a Wi-Fi event when it occurs.
*
* @param buf is the buffer that receives the event
* @param len is the maximum length of the buffer
*
* @returns number of bytes in buffer, 0 if no
* event (for instance, no connection), and less than 0
* if there is an error.
*/
int wifi_wait_for_event(char* buf, size_t len);
/**
* wifi_command() issues a command to the Wi-Fi driver.
*
* Android extends the standard commands listed at
* /link http://hostap.epitest.fi/wpa_supplicant/devel/ctrl_iface_page.html
* to include support for sending commands to the driver:
*
* See wifi/java/android/net/wifi/WifiNative.java for the details of
* driver commands that are supported
*
* @param command is the string command (preallocated with 32 bytes)
* @param commandlen is command buffer length
* @param reply is a buffer to receive a reply string
* @param reply_len on entry, this is the maximum length of
* the reply buffer. On exit, the number of
* bytes in the reply buffer.
*
* @return 0 if successful, < 0 if an error.
*/
int wifi_command(const char* command, char* reply, size_t* reply_len);
/**
* Check and create if necessary initial entropy file
*/
int ensure_entropy_file_exists();
} // namespace wifi_system
} // namespace android
#endif // ANDROID_WIFI_SYSTEM_WIFI_H
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