mirror of
https://github.com/SerenityOS/serenity
synced 2024-07-22 02:26:11 +00:00
73c998dbfc
This has several significant changes to the networking stack. * Significant refactoring of the TCP state machine. Right now it's probably more fragile than it used to be, but handles quite a lot more of the handshake process. * `TCPSocket` holds a `NetworkAdapter*`, assigned during `connect()` or `bind()`, whichever comes first. * `listen()` is now virtual in `Socket` and intended to be implemented in its child classes * `listen()` no longer works without `bind()` - this is a bit of a regression, but listening sockets didn't work at all before, so it's not possible to observe the regression. * A file is exposed at `/proc/net_tcp`, which is a JSON document listing the current TCP sockets with a bit of metadata. * There's an `ETHERNET_VERY_DEBUG` flag for dumping packet's content out to `kprintf`. It is, indeed, _very debug_.
98 lines
2.4 KiB
C++
98 lines
2.4 KiB
C++
#pragma once
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#include <AK/AKString.h>
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#include <AK/LogStream.h>
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#include <AK/NetworkOrdered.h>
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#include <AK/Optional.h>
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typedef u32 in_addr_t;
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namespace AK {
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class [[gnu::packed]] IPv4Address
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{
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public:
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IPv4Address() {}
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IPv4Address(const u8 data[4])
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{
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m_data[0] = data[0];
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m_data[1] = data[1];
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m_data[2] = data[2];
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m_data[3] = data[3];
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}
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IPv4Address(u8 a, u8 b, u8 c, u8 d)
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{
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m_data[0] = a;
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m_data[1] = b;
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m_data[2] = c;
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m_data[3] = d;
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}
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IPv4Address(NetworkOrdered<u32> address)
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: m_data_as_u32(address)
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{
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}
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u8 operator[](int i) const
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{
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ASSERT(i >= 0 && i < 4);
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return m_data[i];
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}
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String to_string() const
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{
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return String::format("%u.%u.%u.%u", m_data[0], m_data[1], m_data[2], m_data[3]);
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}
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static Optional<IPv4Address> from_string(const StringView& string)
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{
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if (string.is_null())
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return {};
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auto parts = string.split_view('.');
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if (parts.size() != 4)
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return {};
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bool ok;
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auto a = parts[0].to_uint(ok);
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if (!ok || a > 255)
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return {};
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auto b = parts[1].to_uint(ok);
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if (!ok || b > 255)
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return {};
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auto c = parts[2].to_uint(ok);
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if (!ok || c > 255)
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return {};
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auto d = parts[3].to_uint(ok);
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if (!ok || d > 255)
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return {};
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return IPv4Address((u8)a, (u8)b, (u8)c, (u8)d);
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}
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in_addr_t to_in_addr_t() const { return m_data_as_u32; }
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u32 to_u32() const { return m_data_as_u32; }
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bool operator==(const IPv4Address& other) const { return m_data_as_u32 == other.m_data_as_u32; }
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bool operator!=(const IPv4Address& other) const { return m_data_as_u32 != other.m_data_as_u32; }
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private:
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union {
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u8 m_data[4];
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u32 m_data_as_u32 { 0 };
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};
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};
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static_assert(sizeof(IPv4Address) == 4);
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template<>
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struct Traits<IPv4Address> : public GenericTraits<IPv4Address> {
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static unsigned hash(const IPv4Address& address) { return string_hash((const char*)&address, sizeof(address)); }
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static void dump(const IPv4Address& address) { kprintf("%s", address.to_string().characters()); }
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};
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inline const LogStream& operator<<(const LogStream& stream, const IPv4Address& value)
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{
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return stream << value.to_string();
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}
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}
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using AK::IPv4Address;
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