From 84d4476650b31dbfc52becf2ff65ddce9d31c9ec Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Tue, 24 Mar 2026 23:54:28 +0100
Subject: implement a rootfs to handle / mounts correctly

---
 kernel/src/filesystem/rootfs/rootfs_filesystem.cpp | 24 ++++++++++++++++++++++
 kernel/src/filesystem/rootfs/rootfs_inode.cpp      | 22 ++++++++++++++++++++
 2 files changed, 46 insertions(+)
 create mode 100644 kernel/src/filesystem/rootfs/rootfs_filesystem.cpp
 create mode 100644 kernel/src/filesystem/rootfs/rootfs_inode.cpp

(limited to 'kernel/src/filesystem/rootfs')

diff --git a/kernel/src/filesystem/rootfs/rootfs_filesystem.cpp b/kernel/src/filesystem/rootfs/rootfs_filesystem.cpp
new file mode 100644
index 0000000..22b1962
--- /dev/null
+++ b/kernel/src/filesystem/rootfs/rootfs_filesystem.cpp
@@ -0,0 +1,24 @@
+#include "kernel/filesystem/rootfs/rootfs_filesystem.hpp"
+
+#include "kernel/devices/device.hpp"
+#include "kernel/filesystem/inode.hpp"
+#include "kernel/filesystem/rootfs/rootfs_inode.hpp"
+
+#include <kstd/memory>
+
+#include <string_view>
+
+namespace filesystem::rootfs
+{
+  auto rootfs_filesystem::mount(kstd::shared_ptr<devices::device> const & /*device*/) -> int
+  {
+    m_root_inode = kstd::make_shared<rootfs_inode>();
+    return 0;
+  }
+
+  auto rootfs_filesystem::lookup(kstd::shared_ptr<inode> const & /*parent*/, std::string_view /*name*/)
+      -> kstd::shared_ptr<inode>
+  {
+    return nullptr;
+  }
+}  // namespace filesystem::rootfs
diff --git a/kernel/src/filesystem/rootfs/rootfs_inode.cpp b/kernel/src/filesystem/rootfs/rootfs_inode.cpp
new file mode 100644
index 0000000..ed057f7
--- /dev/null
+++ b/kernel/src/filesystem/rootfs/rootfs_inode.cpp
@@ -0,0 +1,22 @@
+#include "kernel/filesystem/rootfs/rootfs_inode.hpp"
+
+#include "kernel/filesystem/inode.hpp"
+
+#include <cstddef>
+
+namespace filesystem::rootfs
+{
+  rootfs_inode::rootfs_inode()
+      : inode(inode_kind::directory)
+  {}
+
+  auto rootfs_inode::read(void * /*buffer*/, size_t /*offset*/, size_t /*size*/) const -> size_t
+  {
+    return 0;
+  }
+
+  auto rootfs_inode::write(void const * /*buffer*/, size_t /*offset*/, size_t /*size*/) -> size_t
+  {
+    return 0;
+  }
+}  // namespace filesystem::rootfs
-- 
cgit v1.2.3