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_inode.cpp | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 kernel/src/filesystem/rootfs/rootfs_inode.cpp

(limited to 'kernel/src/filesystem/rootfs/rootfs_inode.cpp')

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


From e97b668f82ad1a51e1e9352073a3ae51cedfdd34 Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Thu, 26 Mar 2026 20:27:23 +0100
Subject: mount /dev in the rootfs

---
 kernel/src/filesystem/rootfs/rootfs_inode.cpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'kernel/src/filesystem/rootfs/rootfs_inode.cpp')

diff --git a/kernel/src/filesystem/rootfs/rootfs_inode.cpp b/kernel/src/filesystem/rootfs/rootfs_inode.cpp
index ed057f7..9bbfbce 100644
--- a/kernel/src/filesystem/rootfs/rootfs_inode.cpp
+++ b/kernel/src/filesystem/rootfs/rootfs_inode.cpp
@@ -2,7 +2,13 @@
 
 #include "kernel/filesystem/inode.hpp"
 
+#include <kstd/memory>
+#include <kstd/string>
+
+#include <algorithm>
 #include <cstddef>
+#include <string_view>
+#include <utility>
 
 namespace filesystem::rootfs
 {
@@ -19,4 +25,15 @@ namespace filesystem::rootfs
   {
     return 0;
   }
+
+  auto rootfs_inode::add_child(std::string_view name) -> void
+  {
+    m_children.push_back(std::make_pair(kstd::string{name}, kstd::make_shared<rootfs_inode>()));
+  }
+
+  auto rootfs_inode::lookup_child(std::string_view name) -> kstd::shared_ptr<inode>
+  {
+    auto it = std::ranges::find_if(m_children, [&](auto const & pair) { return pair.first == name; });
+    return (it != m_children.end()) ? it->second : nullptr;
+  }
 }  // namespace filesystem::rootfs
-- 
cgit v1.2.3