10 files changed, 0 insertions, 613 deletions
diff --git a/kernel/filesystem/src/custody.cpp b/kernel/filesystem/src/custody.cpp
deleted file mode 100644
index 3a87345..0000000
--- a/kernel/filesystem/src/custody.cpp
+++ /dev/null
@@ -1,30 +0,0 @@
-#include "filesystem/custody.hpp"
-
-#include "kapi/system.hpp"
-
-#include "filesystem/inode.hpp"
-
-#include <kstd/memory>
-
-namespace filesystem
-{
-  custody::custody(kstd::shared_ptr<custody> const & parent, kstd::shared_ptr<inode> const & node)
-      : m_parent(parent)
-      , m_inode(node)
-  {
-    if (!m_inode)
-    {
-      kapi::system::panic("[FILESYSTEM] custody constructed with null inode.");
-    }
-  }
-
-  auto custody::get_inode() const -> kstd::shared_ptr<inode> const &
-  {
-    return m_inode;
-  }
-
-  auto custody::get_parent() const -> kstd::shared_ptr<custody> const &
-  {
-    return m_parent;
-  }
-}  // namespace filesystem
-\ No newline at end of file
diff --git a/kernel/filesystem/src/device_file.cpp b/kernel/filesystem/src/device_file.cpp
deleted file mode 100644
index 8fc159a..0000000
--- a/kernel/filesystem/src/device_file.cpp
+++ /dev/null
@@ -1,124 +0,0 @@
-#include "filesystem/device_file.hpp"
-
-#include "kapi/system.hpp"
-
-#include "devices/block_device.hpp"
-#include "devices/device.hpp"
-
-#include <kstd/cstring>
-#include <kstd/memory>
-#include <kstd/vector>
-
-#include <algorithm>
-#include <cstddef>
-
-namespace filesystem
-{
-  device_file::device_file(kstd::shared_ptr<devices::device> const & device)
-      : m_device(device)
-  {
-    if (!m_device)
-    {
-      kapi::system::panic("[FILESYSTEM] device_file constructed with null device.");
-    }
-  }
-
-  auto device_file::open() -> void
-  {
-    // Hook point for permission checks or lazy metadata loading.
-  }
-
-  auto device_file::read(void * buffer, size_t offset, size_t size) const -> size_t
-  {
-    if (m_device->is_block_device())
-    {
-      return process_blocks(offset, size, buffer,
-                            [](size_t idx, size_t off, size_t len, size_t done, devices::block_device * device,
-                               std::byte * scratch, void * buffer) {
-                              auto * out = static_cast<std::byte *>(buffer);
-                              if (off == 0 && len == device->block_size())
-                              {
-                                device->read_block(idx, out + done);
-                              }
-                              else
-                              {
-                                device->read_block(idx, scratch);
-                                kstd::libc::memcpy(out + done, scratch + off, len);
-                              }
-                            });
-    }
-    else
-    {
-      kapi::system::panic("[FILESYSTEM] device_file::read called on non-block device.");
-    }
-  }
-
-  auto device_file::write(void const * buffer, size_t offset, size_t size) -> size_t
-  {
-    if (m_device->is_block_device())
-    {
-      return process_blocks(offset, size, const_cast<void *>(buffer),
-                            [](size_t idx, size_t off, size_t len, size_t done, devices::block_device * device,
-                               std::byte * scratch, void * buffer) {
-                              auto const * in = static_cast<std::byte const *>(buffer);
-                              if (off == 0 && len == device->block_size())
-                              {
-                                device->write_block(idx, in + done);
-                              }
-                              else
-                              {
-                                device->read_block(idx, scratch);
-                                kstd::libc::memcpy(scratch + off, in + done, len);
-                                device->write_block(idx, scratch);
-                              }
-                            });
-    }
-    else
-    {
-      kapi::system::panic("[FILESYSTEM] device_file::write called on non-block device.");
-    }
-  }
-
-  auto device_file::process_blocks(size_t offset, size_t size, void * buffer, block_op op) const -> size_t
-  {
-    if (buffer == nullptr)
-    {
-      kapi::system::panic("[FILESYSTEM] device_file::write called with null buffer.");
-    }
-
-    if (size == 0)
-    {
-      return 0;
-    }
-
-    auto * block_dev = static_cast<devices::block_device *>(m_device.get());
-    if (block_dev == nullptr)
-    {
-      kapi::system::panic("[FILESYSTEM] device_file: expected block_device.");
-    }
-
-    size_t const block_size = block_dev->block_size();
-    size_t const capacity = block_dev->capacity();
-
-    if (offset >= capacity)
-      return 0;
-    size_t const total_to_process = std::min(size, capacity - offset);
-
-    kstd::vector<std::byte> scratch_buffer{block_size};
-    auto processed = 0uz;
-
-    while (processed < total_to_process)
-    {
-      size_t const absolute_offset = offset + processed;
-      size_t const block_index = absolute_offset / block_size;
-      size_t const in_block_offset = absolute_offset % block_size;
-      size_t const chunk_size = std::min(total_to_process - processed, block_size - in_block_offset);
-
-      op(block_index, in_block_offset, chunk_size, processed, block_dev, scratch_buffer.data(), buffer);
-
-      processed += chunk_size;
-    }
-
-    return processed;
-  }
-}  // namespace filesystem
diff --git a/kernel/filesystem/src/ext2/ext2_filesystem.cpp b/kernel/filesystem/src/ext2/ext2_filesystem.cpp
deleted file mode 100644
index a82a098..0000000
--- a/kernel/filesystem/src/ext2/ext2_filesystem.cpp
+++ /dev/null
@@ -1,33 +0,0 @@
-#include "filesystem/ext2/ext2_filesystem.hpp"
-
-#include "devices/device.hpp"
-#include "filesystem/inode.hpp"
-#include "filesystem/inode_metadata.hpp"
-
-#include <kstd/memory>
-
-#include <string_view>
-
-namespace filesystem::ext2
-{
-  auto ext2_filesystem::mount(kstd::shared_ptr<devices::device> const & device) -> int
-  {
-    if (!device)
-    {
-      return -1;  // TODO BA-FS26 panic or errorcode?
-    }
-
-    m_device = device;
-    // TODO BA-FS26 load proper root inode from ext2 metadata
-    m_root_inode = inode{inode_kind::directory};
-
-    // TODO BA-FS26 implement
-    return 0;
-  }
-
-  auto ext2_filesystem::lookup(inode const & /*parent*/, std::string_view /*name*/) -> inode *
-  {
-    // TODO BA-FS26 implement ext2 directory traversal and inode loading
-    return nullptr;
-  }
-}  // namespace filesystem::ext2
diff --git a/kernel/filesystem/src/file_descriptor_table.cpp b/kernel/filesystem/src/file_descriptor_table.cpp
deleted file mode 100644
index 64fad0c..0000000
--- a/kernel/filesystem/src/file_descriptor_table.cpp
+++ /dev/null
@@ -1,82 +0,0 @@
-#include "filesystem/file_descriptor_table.hpp"
-
-#include "kapi/system.hpp"
-
-#include "filesystem/open_file_description.hpp"
-
-#include <algorithm>
-#include <cstddef>
-#include <optional>
-
-namespace filesystem
-{
-  namespace
-  {
-    constinit auto static global_file_descriptor_table = std::optional<file_descriptor_table>{};
-  }  // namespace
-
-  auto file_descriptor_table::init() -> void
-  {
-    if (global_file_descriptor_table)
-    {
-      kapi::system::panic("[FILESYSTEM] File descriptor table has already been initialized.");
-    }
-
-    global_file_descriptor_table.emplace(file_descriptor_table{});
-  }
-
-  auto file_descriptor_table::get() -> file_descriptor_table &
-  {
-    if (!global_file_descriptor_table)
-    {
-      kapi::system::panic("[FILESYSTEM] File descriptor table has not been initialized.");
-    }
-
-    return *global_file_descriptor_table;
-  }
-
-  auto file_descriptor_table::add_file(open_file_description & file_description) -> int
-  {
-    auto it = std::ranges::find_if(m_open_files, [](auto & open_file) { return !open_file.has_value(); });
-    if (it != m_open_files.end())
-    {
-      *it = file_description;
-      return static_cast<int>(it - m_open_files.begin());
-    }
-
-    m_open_files.push_back(file_description);
-    return static_cast<int>(m_open_files.size() - 1);
-  }
-
-  auto file_descriptor_table::get_file(int fd) const -> std::optional<open_file_description>
-  {
-    if (fd < 0)
-    {
-      return std::nullopt;
-    }
-
-    auto const index = static_cast<size_t>(fd);
-    if (index >= m_open_files.size() || !m_open_files.at(fd).has_value())
-    {
-      return std::nullopt;
-    }
-
-    return m_open_files.at(fd);
-  }
-
-  auto file_descriptor_table::remove_file(int fd) -> void
-  {
-    if (fd < 0)
-    {
-      return;
-    }
-
-    auto const index = static_cast<size_t>(fd);
-    if (index >= m_open_files.size())
-    {
-      return;
-    }
-
-    m_open_files.at(fd).reset();
-  }
-}  // namespace filesystem
-\ No newline at end of file
diff --git a/kernel/filesystem/src/filesystem.cpp b/kernel/filesystem/src/filesystem.cpp
deleted file mode 100644
index cdfe7f8..0000000
--- a/kernel/filesystem/src/filesystem.cpp
+++ /dev/null
@@ -1,11 +0,0 @@
-#include "filesystem/filesystem.hpp"
-
-#include "filesystem/inode.hpp"
-
-namespace filesystem
-{
-  auto filesystem::root_inode() const -> inode const &
-  {
-    return m_root_inode;
-  }
-}  // namespace filesystem
-\ No newline at end of file
diff --git a/kernel/filesystem/src/inode.cpp b/kernel/filesystem/src/inode.cpp
deleted file mode 100644
index 231ee33..0000000
--- a/kernel/filesystem/src/inode.cpp
+++ /dev/null
@@ -1,108 +0,0 @@
-#include "filesystem/inode.hpp"
-
-#include "kapi/system.hpp"
-
-#include "devices/device.hpp"
-#include "filesystem/inode_metadata.hpp"
-
-#include <kstd/memory>
-
-#include <cstddef>
-
-namespace filesystem
-{
-  inode::inode(inode_kind kind)
-      : m_kind(kind)
-  {}
-
-  inode::inode(kstd::shared_ptr<devices::device> const & device)
-      : m_kind(inode_kind::device)
-      , m_device(device)
-  {
-    if (!m_device)
-    {
-      kapi::system::panic("[FILESYSTEM] inode constructed with null device.");
-    }
-  }
-
-  auto inode::metadata() const -> inode_metadata
-  {
-    auto meta = inode_metadata{};
-    meta.kind = m_kind;
-
-    if (is_device())
-    {
-      meta.major = m_device->major();
-      meta.minor = m_device->minor();
-    }
-
-    return meta;
-  }
-
-  auto inode::is_directory() const -> bool
-  {
-    return m_kind == inode_kind::directory;
-  }
-
-  auto inode::is_regular() const -> bool
-  {
-    return m_kind == inode_kind::regular;
-  }
-
-  auto inode::is_device() const -> bool
-  {
-    return m_kind == inode_kind::device;
-  }
-
-  auto inode::is_block_device() const -> bool
-  {
-    return is_device() && m_device->is_block_device();
-  }
-
-  auto inode::major_device() const -> size_t
-  {
-    if (!is_device())
-    {
-      kapi::system::panic("[FILESYSTEM] inode::major_device called on non-device inode.");
-    }
-
-    return m_device->major();
-  }
-
-  auto inode::minor_device() const -> size_t
-  {
-    if (!is_device())
-    {
-      kapi::system::panic("[FILESYSTEM] inode::minor_device called on non-device inode.");
-    }
-
-    return m_device->minor();
-  }
-
-  auto inode::backing_device() const -> kstd::shared_ptr<devices::device> const &
-  {
-    return m_device;
-  }
-
-  auto inode::read(void * /*buffer*/, size_t /*offset*/, size_t /*size*/) const -> size_t
-  {
-    if (is_device())
-    {
-      kapi::system::panic("[FILESYSTEM] inode::read called on device inode. Open it as a device file first.");
-    }
-
-    // TODO BA-FS26
-    return 0;
-  }
-
-  auto inode::write(void const *, size_t, size_t) -> size_t
-  {
-    if (is_device())
-    {
-      kapi::system::panic("[FILESYSTEM] inode::write called on device inode. Open it as a device file first.");
-    }
-
-    kapi::system::panic("[FILESYSTEM] inode::write is not implemented yet");
-    return 0;
-  }
-}  // namespace filesystem
-\ No newline at end of file
diff --git a/kernel/filesystem/src/inode_file.cpp b/kernel/filesystem/src/inode_file.cpp
deleted file mode 100644
index 0b8bdf9..0000000
--- a/kernel/filesystem/src/inode_file.cpp
+++ /dev/null
@@ -1,35 +0,0 @@
-#include "filesystem/inode_file.hpp"
-
-#include "kapi/system.hpp"
-
-#include "filesystem/inode.hpp"
-
-#include <kstd/memory>
-
-#include <cstddef>
-
-namespace filesystem
-{
-  inode_file::inode_file(kstd::shared_ptr<inode> const & inode)
-      : m_inode(inode)
-  {
-    if (!m_inode)
-    {
-      kapi::system::panic("[FILESYSTEM] inode_file constructed with null inode");
-    }
-  }
-
-  auto inode_file::open() -> void
-  {
-    // Hook point for permission checks or lazy metadata loading.
-  }
-
-  auto inode_file::read(void * buffer, size_t offset, size_t size) const -> size_t
-  {
-    return m_inode->read(buffer, offset, size);
-  }
-  auto inode_file::write(void const * buffer, size_t offset, size_t size) -> size_t
-  {
-    return m_inode->write(buffer, offset, size);
-  }
-}  // namespace filesystem
-\ No newline at end of file
diff --git a/kernel/filesystem/src/mount.cpp b/kernel/filesystem/src/mount.cpp
deleted file mode 100644
index 021b074..0000000
--- a/kernel/filesystem/src/mount.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-#include "filesystem/mount.hpp"
-
-#include "kapi/system.hpp"
-
-#include "filesystem/filesystem.hpp"
-
-#include <kstd/memory>
-
-#include <string_view>
-
-namespace filesystem
-{
-  mount::mount(std::string_view const & path, kstd::shared_ptr<filesystem> const & fs)
-      : m_path(path)
-      , m_filesystem(fs)
-  {
-    if (!m_filesystem)
-    {
-      kapi::system::panic("[FILESYSTEM] mount initialized with null filesystem.");
-    }
-  }
-
-  auto mount::path() const -> std::string_view
-  {
-    return m_path;
-  }
-
-  auto mount::get_filesystem() const -> kstd::shared_ptr<filesystem> const &
-  {
-    return m_filesystem;
-  }
-}  // namespace filesystem
-\ No newline at end of file
diff --git a/kernel/filesystem/src/open_file_description.cpp b/kernel/filesystem/src/open_file_description.cpp
deleted file mode 100644
index cddee76..0000000
--- a/kernel/filesystem/src/open_file_description.cpp
+++ /dev/null
@@ -1,35 +0,0 @@
-#include "filesystem/open_file_description.hpp"
-
-#include "filesystem/file.hpp"
-
-#include <kstd/memory>
-#include <kstd/os/error.hpp>
-
-#include <cstddef>
-
-namespace filesystem
-{
-  open_file_description::open_file_description(kstd::shared_ptr<file> const & file)
-      : m_file(file)
-      , m_offset(0)
-  {
-    if (!file)
-    {
-      kstd::os::panic("[FILESYSTEM] open_file_description constructed with null file.");
-    }
-  }
-
-  auto open_file_description::read(void * buffer, size_t size) -> size_t
-  {
-    auto read_bytes = m_file->read(buffer, m_offset, size);
-    m_offset += read_bytes;
-    return read_bytes;
-  }
-
-  auto open_file_description::write(void const * buffer, size_t size) -> size_t
-  {
-    auto written_bytes = m_file->write(buffer, m_offset, size);
-    m_offset += written_bytes;
-    return written_bytes;
-  }
-}  // namespace filesystem
-\ No newline at end of file
diff --git a/kernel/filesystem/src/vfs.cpp b/kernel/filesystem/src/vfs.cpp
deleted file mode 100644
index c0f1c3a..0000000
--- a/kernel/filesystem/src/vfs.cpp
+++ /dev/null
@@ -1,123 +0,0 @@
-#include "filesystem/vfs.hpp"
-
-#include "kapi/system.hpp"
-
-#include "devices/device.hpp"
-#include "devices/storage/storage_management.hpp"
-#include "filesystem/custody.hpp"
-#include "filesystem/device_file.hpp"
-#include "filesystem/ext2/ext2_filesystem.hpp"
-#include "filesystem/inode.hpp"
-#include "filesystem/inode_file.hpp"
-#include "filesystem/mount.hpp"
-#include "filesystem/open_file_description.hpp"
-
-#include <kstd/cstring>
-#include <kstd/memory>
-
-#include <algorithm>
-#include <optional>
-#include <string_view>
-
-namespace filesystem
-{
-  namespace
-  {
-    constinit auto static active_vfs = std::optional<vfs>{};
-  }  // namespace
-
-  auto vfs::init() -> void
-  {
-    if (active_vfs)
-    {
-      kapi::system::panic("[FILESYSTEM] vfs has already been initialized.");
-    }
-
-    active_vfs.emplace(vfs{});
-
-    auto storage_mgmt = devices::storage::storage_management::get();
-    if (auto boot_device = storage_mgmt.determine_boot_device())
-    {
-      active_vfs->m_root_fs = kstd::make_shared<ext2::ext2_filesystem>();
-      if (active_vfs->m_root_fs->mount(boot_device) != 0)
-      {
-        kapi::system::panic("[FILESYSTEM] Failed to mount root filesystem.");
-      }
-
-      active_vfs->m_root_mount = mount{"/", active_vfs->m_root_fs};
-
-      std::ranges::for_each(storage_mgmt.all_controllers(), [&](auto controller) {
-        std::ranges::for_each(controller->all_devices(), [&](auto device) { active_vfs->make_device_node(device); });
-      });
-    }
-    else
-    {
-      // TODO BA-FS26 ?? what when no boot_device == no modules loaded??
-    }
-  }
-
-  auto vfs::get() -> vfs &
-  {
-    if (!active_vfs)
-    {
-      kapi::system::panic("[FILESYSTEM] vfs has not been initialized.");
-    }
-
-    return *active_vfs;
-  }
-
-  auto vfs::open(std::string_view path) -> std::optional<open_file_description>
-  {
-    if (auto custody = resolve_path(path))
-    {
-      auto node = custody->get_inode();
-      if (node->is_device())
-      {
-        auto current_device_file = kstd::make_shared<device_file>(node->backing_device());
-        current_device_file->open();
-        return open_file_description{current_device_file};
-      }
-
-      auto current_inode_file = kstd::make_shared<inode_file>(node);
-      current_inode_file->open();
-      return open_file_description{current_inode_file};
-    }
-
-    return std::nullopt;
-  }
-
-  auto vfs::make_device_node(kstd::shared_ptr<devices::device> const & device) -> void
-  {
-    if (!device)
-    {
-      kapi::system::panic("[FILESYSTEM] make_device_node called with null device.");
-    }
-
-    m_device_nodes.push_back(device_node_entry{device->name(), kstd::make_shared<inode>(device)});
-  }
-
-  auto vfs::resolve_path(std::string_view path) -> std::optional<custody>
-  {
-    // TODO BA-FS26 implement real path resolution with mounts and directories etc.
-    // For now, just support device nodes at /dev/<device_name>.
-
-    constexpr auto device_prefix = std::string_view{"/dev/"};
-    if (path.starts_with(device_prefix))
-    {
-      auto const device_name = path.substr(device_prefix.size());
-      auto entry = std::ranges::find_if(m_device_nodes, [&](auto const & device_entry) {
-        return device_entry.has_value() && device_entry->name == device_name;
-      });
-
-      if (entry != m_device_nodes.end())
-      {
-        return custody{nullptr, entry->value().node};
-      }
-
-      return std::nullopt;
-    }
-
-    return std::nullopt;
-  }
-
-}  // namespace filesystem
-\ No newline at end of file