mirror of
https://github.com/RGBCube/serenity
synced 2025-05-31 04:08:11 +00:00
47fa8d83bb
The current parsing code assumed the ascii lowercase letters came after the ascii numbers, which is not the case, and as such corrupted any mac address that included hex letters (a-f). We likely did not notice this as QEMU's emulated MAC is made up of only hex digits.
109 lines
3.6 KiB
C++
109 lines
3.6 KiB
C++
/*
|
|
* 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/StringUtils.h>
|
|
#include <AK/Types.h>
|
|
#include <LibCore/EventLoop.h>
|
|
#include <LibCore/File.h>
|
|
#include <LibCore/LocalServer.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
static u8 mac_part(const Vector<String>& parts, size_t index)
|
|
{
|
|
auto result = AK::StringUtils::convert_to_uint_from_hex(parts.at(index));
|
|
VERIFY(result.has_value());
|
|
return result.value();
|
|
}
|
|
|
|
static MACAddress mac_from_string(const String& str)
|
|
{
|
|
auto chunks = str.split(':');
|
|
VERIFY(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();
|
|
}
|