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IPv4: Implement bind() for TCP and UDP sockets.

Browse source 
We can't accept connections just yet, but this patch makes it possible to
bind() to a given source address/port.
This commit is contained in:
Andreas Kling 2019-05-03 21:51:40 +02:00
parent 6a5d92f0ad
commit abb5c890e0
6 changed files with 34 additions and 2 deletions
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13
Kernel/Net/IPv4Socket.cpp
View file

@ -11,6 +11,7 @@
#include <Kernel/Net/ARP.h>
#include <Kernel/Net/Routing.h>
#include <LibC/errno_numbers.h>
#include <Kernel/FileSystem/FileDescriptor.h>
#define IPV4_SOCKET_DEBUG
@ -63,7 +64,13 @@ KResult IPv4Socket::bind(const sockaddr* address, socklen_t address_size)
if (address->sa_family != AF_INET)
return KResult(-EINVAL);
ASSERT_NOT_REACHED();
auto& ia = *(const sockaddr_in*)address;
m_source_address = IPv4Address((const byte*)&ia.sin_addr.s_addr);
m_source_port = ntohs(ia.sin_port);
dbgprintf("IPv4Socket::bind %s{%p} to port %u\n", class_name(), this, m_source_port);
return protocol_bind();
}
KResult IPv4Socket::connect(FileDescriptor& descriptor, const sockaddr* address, socklen_t address_size, ShouldBlock should_block)
@ -91,8 +98,10 @@ void IPv4Socket::detach(FileDescriptor&)
--m_attached_fds;
}
bool IPv4Socket::can_read(FileDescriptor&) const
bool IPv4Socket::can_read(FileDescriptor& descriptor) const
{
if (descriptor.socket_role() == SocketRole::Listener)
return can_accept();
if (protocol_is_disconnected())
return true;
return m_can_read;