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/*
* hidl interface for wpa_supplicant daemon
* Copyright (c) 2004-2016, Jouni Malinen <j@w1.fi>
* Copyright (c) 2004-2016, Roshan Pius <rpius@google.com>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef MISC_UTILS_H_
#define MISC_UTILS_H_
extern "C" {
#include "wpabuf.h"
}
namespace {
constexpr size_t kWpsPinNumDigits = 8;
// Custom deleter for wpabuf.
void freeWpaBuf(wpabuf *ptr) { wpabuf_free(ptr); }
} // namespace
namespace android {
namespace hardware {
namespace wifi {
namespace supplicant {
namespace V1_0 {
namespace implementation {
namespace misc_utils {
using wpabuf_unique_ptr = std::unique_ptr<wpabuf, void (*)(wpabuf *)>;
// Creates a unique_ptr for wpabuf ptr with a custom deleter.
inline wpabuf_unique_ptr createWpaBufUniquePtr(struct wpabuf *raw_ptr)
{
return {raw_ptr, freeWpaBuf};
}
// Creates a wpabuf ptr with a custom deleter copying the data from the provided
// vector.
inline wpabuf_unique_ptr convertVectorToWpaBuf(const std::vector<uint8_t> &data)
{
return createWpaBufUniquePtr(
wpabuf_alloc_copy(data.data(), data.size()));
}
// Copies the provided wpabuf contents to a std::vector.
inline std::vector<uint8_t> convertWpaBufToVector(const struct wpabuf *buf)
{
if (buf) {
return std::vector<uint8_t>(
wpabuf_head_u8(buf), wpabuf_head_u8(buf) + wpabuf_len(buf));
} else {
return std::vector<uint8_t>();
}
}
// Returns a string holding the wps pin.
inline std::string convertWpsPinToString(int pin)
{
char pin_str[kWpsPinNumDigits + 1];
snprintf(pin_str, sizeof(pin_str), "%08d", pin);
return pin_str;
}
} // namespace misc_utils
} // namespace implementation
} // namespace V1_0
} // namespace supplicant
} // namespace wifi
} // namespace hardware
} // namespace android
#endif // MISC_UTILS_H_
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