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/*
* Copyright (c) 2020, The SerenityOS developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "DHCPv4Client.h"
#include <AK/Debug.h>
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <AK/String.h>
#include <AK/Types.h>
#include <LibCore/EventLoop.h>
#include <LibCore/File.h>
#include <LibCore/LocalServer.h>
#include <stdio.h>
#include <string.h>
static u8 mac_part(const Vector<String>& parts, size_t index)
{
auto chars = parts.at(index).characters();
return (chars[0] - '0') * 16 + (chars[1] - '0');
}
static MACAddress mac_from_string(const String& str)
{
auto chunks = str.split(':');
ASSERT(chunks.size() == 6); // should we...worry about this?
return {
mac_part(chunks, 0), mac_part(chunks, 1), mac_part(chunks, 2),
mac_part(chunks, 3), mac_part(chunks, 4), mac_part(chunks, 5)
};
}
int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
{
if (pledge("stdio unix inet cpath rpath fattr", nullptr) < 0) {
perror("pledge");
return 1;
}
Core::EventLoop event_loop;
if (unveil("/proc/net/", "r") < 0) {
perror("unveil");
return 1;
}
unveil(nullptr, nullptr);
auto file = Core::File::construct("/proc/net/adapters");
if (!file->open(Core::IODevice::ReadOnly)) {
dbgln("Error: {}", file->error_string());
return 1;
}
auto file_contents = file->read_all();
auto json = JsonValue::from_string(file_contents);
if (!json.has_value() || !json.value().is_array()) {
dbgln("Error: No network adapters available");
return 1;
}
Vector<InterfaceDescriptor> ifnames;
json.value().as_array().for_each([&ifnames](auto& value) {
auto if_object = value.as_object();
if (if_object.get("class_name").to_string() == "LoopbackAdapter")
return;
auto name = if_object.get("name").to_string();
auto mac = if_object.get("mac_address").to_string();
dbgln_if(DHCPV4_DEBUG, "Found adapter '{}' with mac {}", name, mac);
ifnames.append({ name, mac_from_string(mac) });
});
auto client = DHCPv4Client::construct(move(ifnames));
if (pledge("stdio inet", nullptr) < 0) {
perror("pledge");
return 1;
}
return event_loop.exec();
}
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