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Kernel: Strongly typed user & group ID's

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Prior to this change, both uid_t and gid_t were typedef'ed to `u32`.
This made it easy to use them interchangeably. Let's not allow that.

This patch adds UserID and GroupID using the AK::DistinctNumeric
mechanism we've already been employing for pid_t/ProcessID.
This commit is contained in:
Andreas Kling 2021-08-28 22:11:16 +02:00
parent 59335bd8ea
commit ae197deb6b
44 changed files with 172 additions and 169 deletions
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4
Kernel/Net/LocalSocket.cpp
View file

@ -63,7 +63,7 @@ KResultOr<SocketPair> LocalSocket::create_connected_pair(int type)
memcpy(socket->m_address.sun_path, "[socketpair]", 13);
auto& process = Process::current();
socket->m_acceptor = { process.pid().value(), process.uid(), process.gid() };
socket->m_acceptor = { process.pid().value(), process.uid().value(), process.gid().value() };
socket->set_connected(true);
socket->set_connect_side_role(Role::Connected);
@ -456,7 +456,7 @@ KResult LocalSocket::chmod(FileDescription&, mode_t mode)
return KSuccess;
}
KResult LocalSocket::chown(FileDescription&, uid_t uid, gid_t gid)
KResult LocalSocket::chown(FileDescription&, UserID uid, GroupID gid)
{
if (m_file)
return m_file->chown(uid, gid);

6
Kernel/Net/LocalSocket.h
View file

@ -48,7 +48,7 @@ public:
virtual KResultOr<size_t> recvfrom(FileDescription&, UserOrKernelBuffer&, size_t, int flags, Userspace<sockaddr*>, Userspace<socklen_t*>, Time&) override;
virtual KResult getsockopt(FileDescription&, int level, int option, Userspace<void*>, Userspace<socklen_t*>) override;
virtual KResult ioctl(FileDescription&, unsigned request, Userspace<void*> arg) override;
virtual KResult chown(FileDescription&, uid_t, gid_t) override;
virtual KResult chown(FileDescription&, UserID, GroupID) override;
virtual KResult chmod(FileDescription&, mode_t) override;
private:
@ -72,8 +72,8 @@ private:
// An open socket file on the filesystem.
RefPtr<FileDescription> m_file;
uid_t m_prebind_uid { 0 };
gid_t m_prebind_gid { 0 };
UserID m_prebind_uid { 0 };
GroupID m_prebind_gid { 0 };
mode_t m_prebind_mode { 0 };
// A single LocalSocket is shared between two file descriptions

4
Kernel/Net/Socket.cpp
View file

@ -35,7 +35,7 @@ Socket::Socket(int domain, int type, int protocol)
, m_protocol(protocol)
{
auto& process = Process::current();
m_origin = { process.pid().value(), process.uid(), process.gid() };
m_origin = { process.pid().value(), process.uid().value(), process.gid().value() };
}
Socket::~Socket()
@ -58,7 +58,7 @@ RefPtr<Socket> Socket::accept()
auto client = m_pending.take_first();
VERIFY(!client->is_connected());
auto& process = Process::current();
client->m_acceptor = { process.pid().value(), process.uid(), process.gid() };
client->m_acceptor = { process.pid().value(), process.uid().value(), process.gid().value() };
client->m_connected = true;
client->m_role = Role::Accepted;
if (!m_pending.is_empty())

8
Kernel/Net/Socket.h
View file

@ -92,11 +92,11 @@ public:
virtual KResult getsockopt(FileDescription&, int level, int option, Userspace<void*>, Userspace<socklen_t*>);
pid_t origin_pid() const { return m_origin.pid; }
uid_t origin_uid() const { return m_origin.uid; }
gid_t origin_gid() const { return m_origin.gid; }
UserID origin_uid() const { return m_origin.uid; }
GroupID origin_gid() const { return m_origin.gid; }
pid_t acceptor_pid() const { return m_acceptor.pid; }
uid_t acceptor_uid() const { return m_acceptor.uid; }
gid_t acceptor_gid() const { return m_acceptor.gid; }
UserID acceptor_uid() const { return m_acceptor.uid; }
GroupID acceptor_gid() const { return m_acceptor.gid; }
const RefPtr<NetworkAdapter> bound_interface() const { return m_bound_interface; }
Mutex& lock() { return m_lock; }