From 31ac3e6ffff00b7ac3b3dbb3db38c44409251b34 Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Thu, 26 Mar 2026 20:09:37 +0100
Subject: first draft of an devfs implementation

---
 kernel/src/filesystem/devfs/devfs_filesystem.cpp | 57 ++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 kernel/src/filesystem/devfs/devfs_filesystem.cpp

(limited to 'kernel/src/filesystem/devfs/devfs_filesystem.cpp')

diff --git a/kernel/src/filesystem/devfs/devfs_filesystem.cpp b/kernel/src/filesystem/devfs/devfs_filesystem.cpp
new file mode 100644
index 0000000..cfd2d88
--- /dev/null
+++ b/kernel/src/filesystem/devfs/devfs_filesystem.cpp
@@ -0,0 +1,57 @@
+#include "kernel/filesystem/devfs/devfs_filesystem.hpp"
+
+#include "kernel/devices/device.hpp"
+#include "kernel/devices/storage/storage_management.hpp"
+#include "kernel/filesystem/devfs/devfs_root_inode.hpp"
+#include "kernel/filesystem/device_inode.hpp"
+#include "kernel/filesystem/inode.hpp"
+
+#include <kstd/memory>
+
+#include <algorithm>
+#include <string_view>
+
+namespace filesystem::devfs
+{
+  auto devfs_filesystem::mount(kstd::shared_ptr<devices::device> const & /*device*/) -> int
+  {
+    m_root_inode = kstd::make_shared<devfs_root_inode>();
+    build_device_inode_table();
+    return 0;
+  }
+
+  auto devfs_filesystem::lookup(kstd::shared_ptr<inode> const & parent, std::string_view name)
+      -> kstd::shared_ptr<inode>
+  {
+    if (!parent || !parent->is_directory())
+    {
+      return nullptr;
+    }
+
+    if (parent.get() != m_root_inode.get())
+    {
+      return nullptr;
+    }
+
+    auto it = std::ranges::find_if(m_inodes, [&](auto const & dev_node) {
+      auto device_inode_ptr = static_cast<device_inode *>(dev_node.get());
+      if (!device_inode_ptr)
+      {
+        return false;
+      }
+      return device_inode_ptr->device()->name() == name;
+    });
+    return (it != m_inodes.end()) ? *it : nullptr;
+  }
+
+  auto devfs_filesystem::build_device_inode_table() -> void
+  {
+    m_inodes.clear();
+
+    auto storage_mgmt = devices::storage::storage_management::get();
+    std::ranges::for_each(storage_mgmt.all_controllers(), [&](auto const & controller) {
+      std::ranges::for_each(controller->all_devices(),
+                            [&](auto const & device) { m_inodes.push_back(kstd::make_shared<device_inode>(device)); });
+    });
+  }
+}  // namespace filesystem::devfs
\ No newline at end of file
-- 
cgit v1.2.3


From a6f93bf8df0dbfa7d19aa1168bfc8b052e41c42f Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Sat, 28 Mar 2026 17:28:32 +0100
Subject: fix vfs mount with /dev & /a  and rootfs & devfs

---
 kernel/src/filesystem/devfs/devfs_filesystem.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'kernel/src/filesystem/devfs/devfs_filesystem.cpp')

diff --git a/kernel/src/filesystem/devfs/devfs_filesystem.cpp b/kernel/src/filesystem/devfs/devfs_filesystem.cpp
index cfd2d88..c4cd81a 100644
--- a/kernel/src/filesystem/devfs/devfs_filesystem.cpp
+++ b/kernel/src/filesystem/devfs/devfs_filesystem.cpp
@@ -13,10 +13,11 @@
 
 namespace filesystem::devfs
 {
-  auto devfs_filesystem::mount(kstd::shared_ptr<devices::device> const & /*device*/) -> int
+  auto devfs_filesystem::mount(kstd::shared_ptr<devices::device> const &) -> int
   {
     m_root_inode = kstd::make_shared<devfs_root_inode>();
     build_device_inode_table();
+
     return 0;
   }
 
-- 
cgit v1.2.3