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authorAmlal El Mahrouss <amlal.elmahrouss@icloud.com>2025-03-23 19:13:48 +0100
committerAmlal El Mahrouss <amlal.elmahrouss@icloud.com>2025-03-23 19:15:17 +0100
commita13e1c0911c0627184bc38f18c7fdda64447b3ad (patch)
tree073a62c09bf216e85a3f310376640fa1805147f9 /dev/Kernel/src/FS
parent149fa096eb306d03686b3b67e813cf1a78e08cd0 (diff)
meta(kernel): Reworked repository's filesystem structure.
Removing useless parts of the project too. Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>
Diffstat (limited to 'dev/Kernel/src/FS')
-rw-r--r--dev/Kernel/src/FS/HPFS.cc22
-rw-r--r--dev/Kernel/src/FS/NeFS+FileMgr.cc245
-rw-r--r--dev/Kernel/src/FS/NeFS.cc1065
3 files changed, 0 insertions, 1332 deletions
diff --git a/dev/Kernel/src/FS/HPFS.cc b/dev/Kernel/src/FS/HPFS.cc
deleted file mode 100644
index a3b1cab5..00000000
--- a/dev/Kernel/src/FS/HPFS.cc
+++ /dev/null
@@ -1,22 +0,0 @@
-/* -------------------------------------------
-
- Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
-
-------------------------------------------- */
-
-#ifdef __FSKIT_INCLUDES_HPFS__
-
-#include <Mod/AHCI/AHCI.h>
-#include <Mod/ATA/ATA.h>
-#include <Mod/Flash/Flash.h>
-#include <FSKit/HPFS.h>
-#include <KernelKit/LPC.h>
-#include <NewKit/Crc32.h>
-#include <NewKit/KernelPanic.h>
-#include <NewKit/KString.h>
-#include <NewKit/Utils.h>
-#include <FirmwareKit/EPM.h>
-#include <KernelKit/UserProcessScheduler.h>
-#include <KernelKit/User.h>
-
-#endif // ifdef __FSKIT_INCLUDES_HPFS__
diff --git a/dev/Kernel/src/FS/NeFS+FileMgr.cc b/dev/Kernel/src/FS/NeFS+FileMgr.cc
deleted file mode 100644
index 0ac6384d..00000000
--- a/dev/Kernel/src/FS/NeFS+FileMgr.cc
+++ /dev/null
@@ -1,245 +0,0 @@
-/* -------------------------------------------
-
- Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
-
-------------------------------------------- */
-
-#include <KernelKit/FileMgr.h>
-#include <KernelKit/MemoryMgr.h>
-
-#ifndef __NE_MINIMAL_OS__
-#ifdef __FSKIT_INCLUDES_NEFS__
-
-/// @brief NeFS File manager.
-/// BUGS: 0
-
-namespace NeOS
-{
- /// @brief C++ constructor
- NeFileSystemMgr::NeFileSystemMgr()
- {
- NeFileSystemParser* mParser = new NeFileSystemParser();
- MUST_PASS(mParser);
-
- kout << "We are done allocating NeFileSystemParser...\r";
- }
-
- NeFileSystemMgr::~NeFileSystemMgr()
- {
- if (mParser)
- {
- kout << "Destroying NeFileSystemParser...\r";
- mm_delete_class(&mParser);
- }
- }
-
- /// @brief Removes a node from the filesystem.
- /// @param path The filename
- /// @return If it was deleted or not.
- bool NeFileSystemMgr::Remove(_Input const Char* path)
- {
- if (path == nullptr || *path == 0)
- return false;
-
- return mParser->RemoveCatalog(path);
- }
-
- /// @brief Creates a node with the specified.
- /// @param path The filename path.
- /// @return The Node pointer.
- NodePtr NeFileSystemMgr::Create(_Input const Char* path)
- {
- return node_cast(mParser->CreateCatalog(path));
- }
-
- /// @brief Creates a node with is a directory.
- /// @param path The filename path.
- /// @return The Node pointer.
- NodePtr NeFileSystemMgr::CreateDirectory(const Char* path)
- {
- return node_cast(mParser->CreateCatalog(path, 0, kNeFSCatalogKindDir));
- }
-
- /// @brief Creates a node with is a alias.
- /// @param path The filename path.
- /// @return The Node pointer.
- NodePtr NeFileSystemMgr::CreateAlias(const Char* path)
- {
- return node_cast(mParser->CreateCatalog(path, 0, kNeFSCatalogKindAlias));
- }
-
- /// @brief Creates a node with is a page file.
- /// @param path The filename path.
- /// @return The Node pointer.
- NodePtr NeFileSystemMgr::CreateSwapFile(const Char* path)
- {
- return node_cast(mParser->CreateCatalog(path, 0, kNeFSCatalogKindPage));
- }
-
- /// @brief Gets the root directory.
- /// @return
- const Char* NeFileSystemHelper::Root()
- {
- return kNeFSRoot;
- }
-
- /// @brief Gets the up-dir directory.
- /// @return
- const Char* NeFileSystemHelper::UpDir()
- {
- return kNeFSUpDir;
- }
-
- /// @brief Gets the separator character.
- /// @return
- const Char NeFileSystemHelper::Separator()
- {
- return kNeFSSeparator;
- }
-
- /// @brief Gets the metafile character.
- /// @return
- const Char NeFileSystemHelper::MetaFile()
- {
- return kNeFSMetaFilePrefix;
- }
-
- /// @brief Opens a new file.
- /// @param path
- /// @param r
- /// @return
- _Output NodePtr NeFileSystemMgr::Open(_Input const Char* path, _Input const Char* r)
- {
- if (!path || *path == 0)
- return nullptr;
-
- if (!r || *r == 0)
- return nullptr;
-
- auto catalog = mParser->GetCatalog(path);
-
- return node_cast(catalog);
- }
-
- /// @brief Writes to a catalog's fork.
- /// @param node the node ptr.
- /// @param data the data.
- /// @param flags the size.
- /// @return
- Void NeFileSystemMgr::Write(_Input NodePtr node, _Input VoidPtr data, _Input Int32 flags, _Input SizeT size)
- {
- if (!node)
- return;
- if (!size)
- return;
-
- constexpr auto kDataForkName = kNeFSDataFork;
- this->Write(kDataForkName, node, data, flags, size);
- }
-
- /// @brief Read from filesystem fork.
- /// @param node the catalog node.
- /// @param flags the flags with it.
- /// @param sz the size to read.
- /// @return
- _Output VoidPtr NeFileSystemMgr::Read(_Input NodePtr node, _Input Int32 flags, _Input SizeT size)
- {
- if (!node)
- return nullptr;
- if (!size)
- return nullptr;
-
- constexpr auto kDataForkName = kNeFSDataFork;
- return this->Read(kDataForkName, node, flags, size);
- }
-
- Void NeFileSystemMgr::Write(_Input const Char* name,
- _Input NodePtr node,
- _Input VoidPtr data,
- _Input Int32 flags,
- _Input SizeT size)
- {
- if (!size ||
- size > kNeFSForkSize)
- return;
-
- if (!data)
- return;
-
- NE_UNUSED(flags);
-
- if ((reinterpret_cast<NEFS_CATALOG_STRUCT*>(node))->Kind == kNeFSCatalogKindFile)
- mParser->WriteCatalog(reinterpret_cast<NEFS_CATALOG_STRUCT*>(node)->Name, (flags & kFileFlagRsrc ? true : false), data, size,
- name);
- }
-
- _Output VoidPtr NeFileSystemMgr::Read(_Input const Char* name,
- _Input NodePtr node,
- _Input Int32 flags,
- _Input SizeT sz)
- {
- if (sz > kNeFSForkSize)
- return nullptr;
-
- if (!sz)
- return nullptr;
-
- NE_UNUSED(flags);
-
- if ((reinterpret_cast<NEFS_CATALOG_STRUCT*>(node))->Kind == kNeFSCatalogKindFile)
- return mParser->ReadCatalog(reinterpret_cast<NEFS_CATALOG_STRUCT*>(node), (flags & kFileFlagRsrc ? true : false), sz,
- name);
-
- return nullptr;
- }
-
- /// @brief Seek from Catalog.
- /// @param node
- /// @param off
- /// @retval true always returns false, this is unimplemented.
- /// @retval false always returns this, it is unimplemented.
-
- _Output Bool NeFileSystemMgr::Seek(NodePtr node, SizeT off)
- {
- if (!node || off == 0)
- return false;
-
- return mParser->Seek(reinterpret_cast<NEFS_CATALOG_STRUCT*>(node), off);
- }
-
- /// @brief Tell where the catalog is.
- /// @param node
- /// @retval true always returns false, this is unimplemented.
- /// @retval false always returns this, it is unimplemented.
-
- _Output SizeT NeFileSystemMgr::Tell(NodePtr node)
- {
- if (!node)
- return kNPos;
-
- return mParser->Tell(reinterpret_cast<NEFS_CATALOG_STRUCT*>(node));
- }
-
- /// @brief Rewinds the catalog.
- /// @param node
- /// @retval true always returns false, this is unimplemented.
- /// @retval false always returns this, it is unimplemented.
-
- _Output Bool NeFileSystemMgr::Rewind(NodePtr node)
- {
- if (!node)
- return false;
-
- return this->Seek(node, 0);
- }
-
- /// @brief Returns the filesystem parser.
- /// @return the Filesystem parser class.
- _Output NeFileSystemParser* NeFileSystemMgr::GetParser() noexcept
- {
- return mParser;
- }
-} // namespace NeOS
-
-#endif // ifdef __FSKIT_INCLUDES_NEFS__
-#endif // ifndef __NE_MINIMAL_OS__
diff --git a/dev/Kernel/src/FS/NeFS.cc b/dev/Kernel/src/FS/NeFS.cc
deleted file mode 100644
index 2742b03d..00000000
--- a/dev/Kernel/src/FS/NeFS.cc
+++ /dev/null
@@ -1,1065 +0,0 @@
-/* -------------------------------------------
-
- Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
-
-------------------------------------------- */
-
-#ifdef __FSKIT_INCLUDES_NEFS__
-
-#include <FSKit/NeFS.h>
-#include <FirmwareKit/EPM.h>
-
-#include <Mod/AHCI/AHCI.h>
-#include <Mod/ATA/ATA.h>
-#include <Mod/MFlash/MFlash.h>
-#include <KernelKit/LPC.h>
-#include <NewKit/Crc32.h>
-#include <NewKit/KernelPanic.h>
-#include <NewKit/KString.h>
-#include <NewKit/Utils.h>
-#include <KernelKit/UserProcessScheduler.h>
-#include <KernelKit/User.h>
-#include <KernelKit/DriveMgr.h>
-
-using namespace NeOS;
-
-#ifdef __NE_NO_BUILTIN__
-/***********************************************************************************/
-/**
- Define those external symbols, to make the editor shutup
-*/
-/***********************************************************************************/
-
-/***********************************************************************************/
-/// @brief get sector count.
-/***********************************************************************************/
-NeOS::SizeT drv_get_sector_count();
-
-/***********************************************************************************/
-/// @brief get device size.
-/***********************************************************************************/
-NeOS::SizeT drv_get_size();
-
-#endif
-
-///! BUGS: 0
-
-/***********************************************************************************/
-/// This file implements the New extended File System.
-/// New extended File System implements a B-Tree based algortihm.
-/// /
-/// /Path1/ /ath2/
-/// /readme.rtf /ListContents.pef /readme.lnk <-- symlink.
-/// /Path1/readme.rtf
-/***********************************************************************************/
-
-STATIC MountpointInterface kMountpoint;
-
-/***********************************************************************************/
-/// @brief Creates a new fork inside the New filesystem partition.
-/// @param catalog it's catalog
-/// @param the_fork the fork itself.
-/// @return the fork
-/***********************************************************************************/
-_Output BOOL NeFileSystemParser::CreateFork(_Input NEFS_FORK_STRUCT& the_fork)
-{
- if (the_fork.ForkName[0] != 0 &&
- the_fork.CatalogName[0] != 0 &&
- the_fork.DataSize > 0)
- {
- auto catalog = this->GetCatalog(the_fork.CatalogName);
-
- if (!catalog)
- return NO;
-
- Lba lba = catalog->DataFork;
-
- kout << "Fork LBA: " << hex_number(lba) << kendl;
-
- if (lba < kNeFSCatalogStartAddress)
- return NO;
-
- auto& drv = kMountpoint.A();
-
- Lba lba_prev = lba;
-
- NEFS_FORK_STRUCT prev_fork;
- NEFS_FORK_STRUCT cur_fork;
-
- /// do not check for anything. Loop until we get what we want, that is a free fork zone.
- while (drv.fPacket.fPacketGood)
- {
- drv.fPacket.fPacketLba = lba;
- drv.fPacket.fPacketSize = sizeof(NEFS_FORK_STRUCT);
- drv.fPacket.fPacketContent = &cur_fork;
-
- drv.fInput(drv.fPacket);
-
- kout << "Next fork: " << hex_number(cur_fork.NextSibling) << kendl;
-
- if (cur_fork.Flags & kNeFSFlagCreated)
- {
- kout << "Error: Fork does exists.\r";
-
- /// sanity check.
- if (KStringBuilder::Equals(cur_fork.ForkName, the_fork.ForkName) &&
- KStringBuilder::Equals(cur_fork.CatalogName, the_fork.CatalogName))
- break;
-
- lba_prev = lba;
- lba = cur_fork.NextSibling;
-
- prev_fork = cur_fork;
- }
- else
- {
- /// This is a check that we have, in order to link the previous fork
- /// entry.
- if (lba >= kNeFSCatalogStartAddress)
- {
- drv.fPacket.fPacketLba = lba_prev;
- drv.fPacket.fPacketSize = sizeof(NEFS_FORK_STRUCT);
- drv.fPacket.fPacketContent = &prev_fork;
-
- prev_fork.NextSibling = lba;
-
- /// write to disk.
- drv.fOutput(drv.fPacket);
- }
-
- break;
- }
- }
-
- the_fork.Flags |= kNeFSFlagCreated;
- the_fork.DataOffset = lba - sizeof(NEFS_FORK_STRUCT);
- the_fork.PreviousSibling = lba_prev;
- the_fork.NextSibling = the_fork.DataOffset - the_fork.DataSize;
-
- drv.fPacket.fPacketLba = lba;
- drv.fPacket.fPacketSize = sizeof(NEFS_FORK_STRUCT);
- drv.fPacket.fPacketContent = &the_fork;
-
- kout << "Allocating fork block...\r";
-
- // drv.fOutput(drv.fPacket);
-
- fs_ifs_write(&kMountpoint, drv, MountpointInterface::kDriveIndexA);
-
- /// log what we have now.
- kout << "Fork offset is at: " << hex_number(the_fork.DataOffset)
- << kendl;
-
- kout << "Wrote fork metadata at: " << hex_number(lba) << kendl;
-
- return YES;
- }
-
- return NO;
-}
-
-/***********************************************************************************/
-/// @brief Find fork inside filesystem.
-/// @param catalog the catalog.
-/// @param name the fork name.
-/// @return the newly found fork.
-/***********************************************************************************/
-_Output NEFS_FORK_STRUCT* NeFileSystemParser::FindFork(_Input NEFS_CATALOG_STRUCT* catalog,
- _Input const Char* name,
- _Input Boolean is_data)
-{
- auto& drive = kMountpoint.A();
- NEFS_FORK_STRUCT* the_fork = nullptr;
-
- Lba lba = is_data ? catalog->DataFork : catalog->ResourceFork;
-
- while (lba != 0)
- {
- drive.fPacket.fPacketLba = lba;
- drive.fPacket.fPacketSize = sizeof(NEFS_FORK_STRUCT);
- drive.fPacket.fPacketContent = (VoidPtr)the_fork;
-
- rt_copy_memory((VoidPtr) "fs/nefs-packet", drive.fPacket.fPacketMime, 16);
-
- if (auto res =
- fs_ifs_read(&kMountpoint, drive, this->mDriveIndex);
- res)
- {
- switch (res)
- {
- case 1:
- err_global_get() = kErrorDiskReadOnly;
- break;
- case 2:
- err_global_get() = kErrorDiskIsFull;
- break;
- case 3:
- err_global_get() = kErrorNoSuchDisk;
- break;
-
- default:
- break;
- }
- return nullptr;
- }
-
- if (KStringBuilder::Equals(the_fork->ForkName, name))
- {
- break;
- }
-
- lba = the_fork->NextSibling;
- }
-
- return the_fork;
-}
-
-/***********************************************************************************/
-/// @brief Simpler factory to create a catalog (assumes you want to create a
-/// file.)
-/// @param name
-/// @return catalog pointer.
-/***********************************************************************************/
-_Output NEFS_CATALOG_STRUCT* NeFileSystemParser::CreateCatalog(_Input const Char* name)
-{
- return this->CreateCatalog(name, 0, kNeFSCatalogKindFile);
-}
-
-/***********************************************************************************/
-/// @brief Creates a new catalog into the disk.
-/// @param name the catalog name.
-/// @param flags the flags of the catalog.
-/// @param kind the catalog kind.
-/// @return catalog pointer.
-/***********************************************************************************/
-_Output NEFS_CATALOG_STRUCT* NeFileSystemParser::CreateCatalog(_Input const Char* name,
- _Input const Int32& flags,
- _Input const Int32& kind)
-{
- kout << "CreateCatalog(*...*)\r";
-
- Lba out_lba = 0UL;
-
- kout << "Checking for path separator...\r";
-
- /// a directory should have a slash in the end.
- if (kind == kNeFSCatalogKindDir &&
- name[rt_string_len(name) - 1] != NeFileSystemHelper::Separator())
- return nullptr;
-
- /// a file shouldn't have a slash in the end.
- if (kind != kNeFSCatalogKindDir &&
- name[rt_string_len(name) - 1] == NeFileSystemHelper::Separator())
- return nullptr;
-
- NEFS_CATALOG_STRUCT* catalog_copy = this->FindCatalog(name, out_lba);
-
- if (catalog_copy)
- {
- kout << "Catalog already exists: " << name << ".\r";
- err_global_get() = kErrorFileExists;
-
- delete catalog_copy;
- catalog_copy = nullptr;
-
- return nullptr;
- }
-
- Char parent_name[kNeFSCatalogNameLen] = {0};
-
- for (SizeT indexName = 0UL; indexName < rt_string_len(name); ++indexName)
- {
- parent_name[indexName] = name[indexName];
- }
-
- if (*parent_name == 0)
- {
- kout << "Parent name is NUL.\r";
- err_global_get() = kErrorFileNotFound;
- return nullptr;
- }
-
- /// Locate parent catalog, to then allocate right after it.
-
- for (SizeT index_fill = 0; index_fill < rt_string_len(name); ++index_fill)
- {
- parent_name[index_fill] = name[index_fill];
- }
-
- SizeT index_reverse_copy = rt_string_len(parent_name);
-
- // zero character it.
- parent_name[--index_reverse_copy] = 0;
-
- // mandatory / character, zero it.
- parent_name[--index_reverse_copy] = 0;
-
- while (parent_name[index_reverse_copy] != NeFileSystemHelper::Separator())
- {
- parent_name[index_reverse_copy] = 0;
- --index_reverse_copy;
- }
-
- NEFS_CATALOG_STRUCT* catalog = this->FindCatalog(parent_name, out_lba);
-
- auto& drive = kMountpoint.A();
-
- constexpr auto kNeFSCatalogPadding = 4;
-
- if (catalog && catalog->Kind == kNeFSCatalogKindFile)
- {
- kout << "Parent is a file.\r";
- delete catalog;
-
- return nullptr;
- }
- else if (!catalog)
- {
- Char part_block[sizeof(NEFS_ROOT_PARTITION_BLOCK)] = {0};
-
- drive.fPacket.fPacketContent = part_block;
- drive.fPacket.fPacketSize = sizeof(NEFS_ROOT_PARTITION_BLOCK);
- drive.fPacket.fPacketLba = kNeFSRootCatalogStartAddress;
-
- drive.fInput(drive.fPacket);
-
- NEFS_ROOT_PARTITION_BLOCK* blk_nefs = (NEFS_ROOT_PARTITION_BLOCK*)part_block;
- out_lba = blk_nefs->StartCatalog;
- }
-
- if (drive.fPacket.fPacketReadOnly)
- return nullptr;
-
- NEFS_CATALOG_STRUCT* child_catalog = new NEFS_CATALOG_STRUCT();
-
- child_catalog->Checksum = 0;
- child_catalog->ResourceForkSize = 0UL;
- child_catalog->DataForkSize = 0UL;
- child_catalog->CatalogFlags = kNeFSStatusUnlocked;
- child_catalog->NextSibling = out_lba;
- child_catalog->PrevSibling = out_lba;
- child_catalog->Kind = kind;
- child_catalog->Flags |= kNeFSFlagCreated;
- child_catalog->CatalogFlags = flags;
-
- SizeT i = rt_string_len(name);
-
- // get rid pf \0
- --i;
-
- if (kind == kNeFSCatalogKindDir)
- --i;
-
- while (name[i] != '/')
- --i;
-
- rt_copy_memory((VoidPtr)(name + i), (VoidPtr)child_catalog->Name,
- rt_string_len(name));
-
- NEFS_CATALOG_STRUCT temporary_catalog{};
-
- Lba start_free = out_lba;
-
- rt_copy_memory((VoidPtr) "fs/nefs-packet", drive.fPacket.fPacketMime,
- rt_string_len("fs/nefs-packet"));
-
- Char buf_part_block[sizeof(NEFS_ROOT_PARTITION_BLOCK)] = {0};
-
- drive.fPacket.fPacketContent = buf_part_block;
- drive.fPacket.fPacketSize = sizeof(NEFS_ROOT_PARTITION_BLOCK);
- drive.fPacket.fPacketLba = kNeFSRootCatalogStartAddress;
-
- drive.fInput(drive.fPacket);
-
- NEFS_ROOT_PARTITION_BLOCK* part_block = (NEFS_ROOT_PARTITION_BLOCK*)buf_part_block;
-
- drive.fPacket.fPacketContent = &temporary_catalog;
- drive.fPacket.fPacketSize = sizeof(NEFS_CATALOG_STRUCT);
- drive.fPacket.fPacketLba = start_free;
-
- drive.fInput(drive.fPacket);
-
- if (part_block->FreeCatalog < 1)
- {
- delete child_catalog;
- child_catalog = nullptr;
-
- return nullptr;
- }
-
- kout << "Start finding catalog to allocate or empty space...\r";
-
- while (start_free >= part_block->StartCatalog)
- {
- // ========================== //
- // Allocate catalog now...
- // ========================== //
- if ((temporary_catalog.Flags & kNeFSFlagCreated) == 0)
- {
- child_catalog->NextSibling =
- start_free + (sizeof(NEFS_CATALOG_STRUCT) * kNeFSCatalogPadding);
-
- drive.fPacket.fPacketContent = &temporary_catalog;
- drive.fPacket.fPacketSize = sizeof(NEFS_CATALOG_STRUCT);
- drive.fPacket.fPacketLba = start_free;
-
- drive.fOutput(drive.fPacket);
-
- child_catalog->DataFork = part_block->DiskSize - start_free;
- child_catalog->ResourceFork = child_catalog->DataFork;
-
- drive.fPacket.fPacketContent = child_catalog;
- drive.fPacket.fPacketSize = sizeof(NEFS_CATALOG_STRUCT);
- drive.fPacket.fPacketLba = start_free;
-
- drive.fOutput(drive.fPacket);
-
- // Get NeFS partition's block.
-
- drive.fPacket.fPacketContent = buf_part_block;
- drive.fPacket.fPacketSize = sizeof(NEFS_ROOT_PARTITION_BLOCK);
- drive.fPacket.fPacketLba = kNeFSRootCatalogStartAddress;
-
- drive.fInput(drive.fPacket);
-
- part_block->FreeSectors -= 1;
- part_block->CatalogCount += 1;
- part_block->FreeCatalog -= 1;
-
- drive.fOutput(drive.fPacket);
-
- kout << "Create new catalog with flags: "
- << hex_number(child_catalog->Flags) << kendl;
- kout << "Create new catalog with name: " << child_catalog->Name
- << kendl;
-
- delete catalog;
- catalog = nullptr;
-
- NEFS_CATALOG_STRUCT* found_catalog = new NEFS_CATALOG_STRUCT();
- rt_copy_memory(&temporary_catalog, found_catalog, sizeof(NEFS_CATALOG_STRUCT));
-
- return found_catalog;
- }
- else if ((temporary_catalog.Flags & kNeFSFlagCreated) &&
- KStringBuilder::Equals(temporary_catalog.Name, name))
- {
- rt_copy_memory(&temporary_catalog, child_catalog, sizeof(NEFS_CATALOG_STRUCT));
-
- return child_catalog;
- }
-
- start_free = start_free + (sizeof(NEFS_CATALOG_STRUCT) * kNeFSCatalogPadding);
-
- drive.fPacket.fPacketContent = &temporary_catalog;
- drive.fPacket.fPacketSize = sizeof(NEFS_CATALOG_STRUCT);
- drive.fPacket.fPacketLba = start_free;
-
- drive.fInput(drive.fPacket);
- }
-
- delete catalog;
- return nullptr;
-}
-
-/// @brief Make a EPM+NeFS drive out of the disk.
-/// @param drive The drive to write on.
-/// @return If it was sucessful, see err_global_get().
-bool NeFileSystemParser::Format(_Input _Output DriveTrait* drive, _Input const Lba endLba, _Input const Int32 flags, const Char* part_name)
-{
- if (*part_name == 0 ||
- endLba == 0)
- return false;
-
- // verify disk.
- drive->fVerify(drive->fPacket);
-
- rt_copy_memory((VoidPtr) "fs/nefs-packet", drive->fPacket.fPacketMime,
- rt_string_len("fs/nefs-packet"));
-
- // if disk isn't good, then error out.
- if (false == drive->fPacket.fPacketGood)
- {
- err_global_get() = kErrorDiskIsCorrupted;
- return false;
- }
-
- Char fs_buf[sizeof(NEFS_ROOT_PARTITION_BLOCK)] = {0};
-
- Lba start = kNeFSRootCatalogStartAddress;
-
- drive->fPacket.fPacketContent = fs_buf;
- drive->fPacket.fPacketSize = sizeof(NEFS_ROOT_PARTITION_BLOCK);
- drive->fPacket.fPacketLba = start;
-
- drive->fInput(drive->fPacket);
-
- if (flags & kNeFSPartitionTypeBoot)
- {
- // make it bootable when needed.
- Char buf_epm[kNeFSSectorSz] = {0};
-
- EPM_PART_BLOCK* epm_boot = (EPM_PART_BLOCK*)buf_epm;
-
- // Write a new EPM entry.
-
- constexpr auto kFsName = "NeFS";
- constexpr auto kBlockName = "ZkaOS:";
-
- rt_copy_memory(reinterpret_cast<VoidPtr>(const_cast<Char*>(kFsName)), epm_boot->Fs, rt_string_len(kFsName));
-
- epm_boot->FsVersion = kNeFSVersionInteger;
- epm_boot->LbaStart = start;
- epm_boot->SectorSz = kNeFSSectorSz;
-
- rt_copy_memory(reinterpret_cast<VoidPtr>(const_cast<Char*>(kBlockName)), epm_boot->Name, rt_string_len(kBlockName));
- rt_copy_memory(reinterpret_cast<VoidPtr>(const_cast<Char*>(kEPMMagic)), epm_boot->Magic, rt_string_len(kEPMMagic));
-
- Lba outEpmLba = kEPMBootBlockLba;
-
- Char buf[kNeFSSectorSz];
-
- Lba prevStart = 0;
- SizeT cnt = 0;
-
- while (drive->fPacket.fPacketGood)
- {
- drive->fPacket.fPacketContent = buf;
- drive->fPacket.fPacketSize = sizeof(EPM_PART_BLOCK);
- drive->fPacket.fPacketLba = outEpmLba;
-
- drive->fInput(drive->fPacket);
-
- if (buf[0] == 0)
- {
- epm_boot->LbaStart = prevStart;
-
- if (epm_boot->LbaStart)
- epm_boot->LbaStart = outEpmLba;
-
- epm_boot->LbaEnd = endLba;
- epm_boot->NumBlocks = cnt;
-
- drive->fPacket.fPacketContent = buf_epm;
- drive->fPacket.fPacketSize = sizeof(EPM_PART_BLOCK);
- drive->fPacket.fPacketLba = outEpmLba;
-
- drive->fOutput(drive->fPacket);
-
- break;
- }
- else
- {
- prevStart = ((EPM_PART_BLOCK*)buf)->LbaStart + ((EPM_PART_BLOCK*)buf)->LbaEnd;
- }
-
- outEpmLba += sizeof(EPM_PART_BLOCK);
- ++cnt;
- }
- }
-
- // disk isnt faulty and data has been fetched.
- while (drive->fPacket.fPacketGood)
- {
- NEFS_ROOT_PARTITION_BLOCK* part_block = (NEFS_ROOT_PARTITION_BLOCK*)fs_buf;
-
- // check for an empty partition here.
- if (part_block->PartitionName[0] == 0 &&
- rt_string_cmp(part_block->Ident, kNeFSIdent, kNeFSIdentLen))
- {
- // partition is free and valid.
-
- part_block->Version = kNeFSVersionInteger;
-
- const auto kNeFSUntitledHD = part_name;
-
- rt_copy_memory((VoidPtr)kNeFSIdent, (VoidPtr)part_block->Ident,
- kNeFSIdentLen);
-
- rt_copy_memory((VoidPtr)kNeFSUntitledHD, (VoidPtr)part_block->PartitionName,
- rt_string_len(kNeFSUntitledHD));
-
- SizeT catalogCount = 0UL;
-
- SizeT sectorCount = drv_get_sector_count();
- SizeT diskSize = drv_get_size();
-
- part_block->Kind = kNeFSPartitionTypeStandard;
- part_block->StartCatalog = kNeFSCatalogStartAddress;
- part_block->Flags = kNeFSPartitionTypeStandard;
- part_block->CatalogCount = sectorCount / sizeof(NEFS_CATALOG_STRUCT);
- part_block->FreeSectors = sectorCount / sizeof(NEFS_CATALOG_STRUCT);
- part_block->SectorCount = sectorCount;
- part_block->DiskSize = diskSize;
- part_block->FreeCatalog = sectorCount / sizeof(NEFS_CATALOG_STRUCT);
-
- drive->fPacket.fPacketContent = fs_buf;
- drive->fPacket.fPacketSize = sizeof(NEFS_ROOT_PARTITION_BLOCK);
- drive->fPacket.fPacketLba = kNeFSRootCatalogStartAddress;
-
- drive->fOutput(drive->fPacket);
-
- kout << "drive kind: " << drive->fDriveKind() << kendl;
-
- kout << "partition name: " << part_block->PartitionName << kendl;
- kout << "start: " << hex_number(part_block->StartCatalog) << kendl;
- kout << "number of catalogs: " << hex_number(part_block->CatalogCount) << kendl;
- kout << "free catalog: " << hex_number(part_block->FreeCatalog) << kendl;
- kout << "free sectors: " << hex_number(part_block->FreeSectors) << kendl;
- kout << "sector size: " << hex_number(part_block->SectorSize) << kendl;
-
- // write the root catalog.
- this->CreateCatalog(kNeFSRoot, 0, kNeFSCatalogKindDir);
-
- return true;
- }
-
- kout << "partition block already exists.\r";
-
- start += part_block->DiskSize;
-
- drive->fPacket.fPacketContent = fs_buf;
- drive->fPacket.fPacketSize = sizeof(NEFS_ROOT_PARTITION_BLOCK);
- drive->fPacket.fPacketLba = start;
-
- drive->fInput(drive->fPacket);
- }
-
- return false;
-}
-
-/// @brief Writes the data fork into a specific catalog.
-/// @param catalog the catalog itself
-/// @param data the data.
-/// @return if the catalog w rote the contents successfully.
-bool NeFileSystemParser::WriteCatalog(_Input const Char* catalog_name, Bool is_rsrc_fork, _Input VoidPtr data, _Input SizeT size_of_data, _Input const Char* fork_name)
-{
- if (size_of_data < 1)
- return No;
-
- auto buf = new UInt8[size_of_data];
- rt_set_memory(buf, 0, size_of_data);
-
- rt_copy_memory(data, buf, size_of_data);
-
- auto& drive = kMountpoint.A();
-
- rt_copy_memory((VoidPtr) "fs/nefs-packet", drive.fPacket.fPacketMime,
- rt_string_len("fs/nefs-packet"));
-
- auto catalog = this->GetCatalog(catalog_name);
-
- if (!catalog)
- {
- delete[] buf;
- buf = nullptr;
- return NO;
- }
-
- auto startFork = (!is_rsrc_fork) ? catalog->DataFork
- : catalog->ResourceFork;
-
- delete catalog;
- catalog = nullptr;
-
- NEFS_FORK_STRUCT* fork_data_input = new NEFS_FORK_STRUCT();
- NEFS_FORK_STRUCT prev_fork{};
-
- kout << hex_number(startFork) << kendl;
-
- // sanity check of the fork position as the condition to run the loop.
- while (startFork >= kNeFSCatalogStartAddress)
- {
- drive.fPacket.fPacketContent = fork_data_input;
- drive.fPacket.fPacketSize = sizeof(NEFS_FORK_STRUCT);
- drive.fPacket.fPacketLba = startFork;
-
- drive.fInput(drive.fPacket);
-
- kout << hex_number(fork_data_input->DataSize) << kendl;
- kout << hex_number(size_of_data) << kendl;
- kout << hex_number(fork_data_input->Flags) << kendl;
- kout << fork_name << kendl;
- kout << fork_data_input->ForkName << kendl;
- kout << fork_data_input->CatalogName << kendl;
- kout << catalog_name << kendl;
-
- if ((fork_data_input->Flags & kNeFSFlagCreated) &&
- KStringBuilder::Equals(fork_data_input->ForkName, fork_name) &&
- KStringBuilder::Equals(fork_data_input->CatalogName, catalog_name) &&
- fork_data_input->DataSize == size_of_data)
- {
- // ===================================================== //
- // Store the blob now.
- // ===================================================== //
-
- drive.fPacket.fPacketContent = buf;
- drive.fPacket.fPacketSize = size_of_data;
- drive.fPacket.fPacketLba = fork_data_input->DataOffset;
-
- kout << "data offset: " << hex_number(fork_data_input->DataOffset) << kendl;
-
- drive.fOutput(drive.fPacket);
-
- kout << "wrote data at offset: " << hex_number(fork_data_input->DataOffset) << kendl;
-
- delete fork_data_input;
- delete[] buf;
-
- return true;
- }
-
- // stumble upon a fork, store it.
-
- prev_fork = *fork_data_input;
-
- startFork = fork_data_input->NextSibling;
- }
-
- delete[] buf;
- delete fork_data_input;
-
- return false;
-}
-
-/// @brief
-/// @param catalog_name the catalog name.
-/// @return the newly found catalog.
-_Output NEFS_CATALOG_STRUCT* NeFileSystemParser::FindCatalog(_Input const Char* catalog_name,
- Lba& out_lba,
- Bool search_hidden,
- Bool local_search)
-{
- if (!catalog_name ||
- *catalog_name == 0)
- return nullptr;
-
- NEFS_ROOT_PARTITION_BLOCK part{0};
- auto& drive = kMountpoint.A();
-
- rt_copy_memory((VoidPtr) "fs/nefs-packet", drive.fPacket.fPacketMime,
- rt_string_len("fs/nefs-packet"));
-
- drive.fPacket.fPacketContent = &part;
- drive.fPacket.fPacketSize = sizeof(NEFS_ROOT_PARTITION_BLOCK);
- drive.fPacket.fPacketLba = kNeFSRootCatalogStartAddress;
-
- drive.fInput(drive.fPacket);
-
- auto start_catalog_lba = kNeFSCatalogStartAddress;
- const auto kStartCatalogList = start_catalog_lba;
-
- if (!KStringBuilder::Equals(catalog_name, NeFileSystemHelper::Root()) && local_search)
- {
- Char parent_name[kNeFSCatalogNameLen] = {0};
-
- for (SizeT indexFill = 0; indexFill < rt_string_len(catalog_name); ++indexFill)
- {
- parent_name[indexFill] = catalog_name[indexFill];
- }
-
- SizeT indexReverseCopy = rt_string_len(parent_name);
-
- // zero character.
- parent_name[--indexReverseCopy] = 0;
-
- // mandatory '/' character.
- parent_name[--indexReverseCopy] = 0;
-
- while (parent_name[indexReverseCopy] != NeFileSystemHelper::Separator())
- {
- parent_name[indexReverseCopy] = 0;
- --indexReverseCopy;
- }
-
- NEFS_CATALOG_STRUCT* parent_catalog = this->FindCatalog(parent_name, out_lba);
-
- if (parent_catalog &&
- !KStringBuilder::Equals(parent_name, NeFileSystemHelper::Root()))
- {
- start_catalog_lba = parent_catalog->NextSibling;
-
- delete parent_catalog;
- parent_catalog = nullptr;
-
- local_search = YES;
- }
- else if (parent_catalog)
- {
- start_catalog_lba = parent_catalog->NextSibling;
-
- local_search = YES;
-
- delete parent_catalog;
- parent_catalog = nullptr;
- }
- else if (!parent_catalog)
- {
- return nullptr;
- }
- }
-
- NEFS_CATALOG_STRUCT temporary_catalog{};
-
- SizeT i = rt_string_len(catalog_name);
-
- // get rid of \0
- --i;
-
- if (catalog_name[i] == '/')
- --i;
-
- while (catalog_name[i] != '/')
- --i;
-
- const Char* tmp_name = (catalog_name + i);
-
-kNeFSSearchThroughCatalogList:
- while (drive.fPacket.fPacketGood)
- {
- drive.fPacket.fPacketLba = start_catalog_lba;
- drive.fPacket.fPacketContent = &temporary_catalog;
- drive.fPacket.fPacketSize = sizeof(NEFS_CATALOG_STRUCT);
-
- drive.fInput(drive.fPacket);
-
- if (KStringBuilder::Equals(tmp_name, temporary_catalog.Name))
- {
- if (temporary_catalog.Status == kNeFSStatusLocked &&
- !search_hidden)
- {
- err_global_get() = kErrorFileLocked;
-
- goto NeFSContinueSearch;
- }
-
- /// ignore unallocated catalog, break
- if (!(temporary_catalog.Flags & kNeFSFlagCreated))
- {
- err_global_get() = kErrorFileNotFound;
-
- goto NeFSContinueSearch;
- }
-
- kout << "Found available catalog at: " << hex_number(start_catalog_lba) << kendl;
- kout << "Found available catalog at: " << temporary_catalog.Name << kendl;
-
- NEFS_CATALOG_STRUCT* catalog_ptr = new NEFS_CATALOG_STRUCT();
- rt_copy_memory(&temporary_catalog, catalog_ptr, sizeof(NEFS_CATALOG_STRUCT));
-
- out_lba = start_catalog_lba;
- return catalog_ptr;
- }
-
- NeFSContinueSearch:
- start_catalog_lba = temporary_catalog.NextSibling;
-
- if (start_catalog_lba < part.StartCatalog)
- break;
- }
-
- if (local_search)
- {
- local_search = false;
- start_catalog_lba = part.StartCatalog;
-
- goto kNeFSSearchThroughCatalogList;
- }
-
- err_global_get() = kErrorFileNotFound;
-
- out_lba = 0UL;
-
- return nullptr;
-}
-
-/// @brief Get catalog from filesystem.
-/// @param name the catalog's name/
-/// @return
-_Output NEFS_CATALOG_STRUCT* NeFileSystemParser::GetCatalog(_Input const Char* name)
-{
- Lba unused = 0;
- return this->FindCatalog(name, unused, YES);
-}
-
-/// @brief Closes a catalog, (frees it).
-/// @param catalog the catalog to close.
-/// @return
-_Output Boolean NeFileSystemParser::CloseCatalog(_Input _Output NEFS_CATALOG_STRUCT* catalog)
-{
- if (!catalog)
- return false;
-
- delete catalog;
- catalog = nullptr;
-
- return true;
-}
-
-/// @brief Mark catalog as removed.
-/// @param catalog The catalog structure.
-/// @return if the catalog was removed or not.
-_Output Boolean NeFileSystemParser::RemoveCatalog(_Input const Char* catalog_name)
-{
- if (!catalog_name ||
- KStringBuilder::Equals(catalog_name, NeFileSystemHelper::Root()))
- {
- err_global_get() = kErrorInternal;
- return false;
- }
-
- Lba out_lba = 0;
- auto catalog = this->FindCatalog(catalog_name, out_lba);
-
- if (out_lba >= kNeFSCatalogStartAddress ||
- catalog->Flags & kNeFSFlagCreated)
- {
- catalog->Flags &= (~kNeFSFlagCreated);
- catalog->Flags |= kNeFSFlagDeleted;
-
- auto& drive = kMountpoint.A();
-
- rt_copy_memory((VoidPtr) "fs/nefs-packet", drive.fPacket.fPacketMime,
- rt_string_len("fs/nefs-packet"));
-
- drive.fPacket.fPacketLba = out_lba; // the catalog position.
- drive.fPacket.fPacketSize =
- sizeof(NEFS_CATALOG_STRUCT); // size of catalog. roughly the sector size.
- drive.fPacket.fPacketContent = catalog; // the catalog itself.
-
- drive.fOutput(drive.fPacket); // send packet.
-
- Char partitionBlockBuf[sizeof(NEFS_ROOT_PARTITION_BLOCK)] = {0};
-
- drive.fPacket.fPacketLba = kNeFSRootCatalogStartAddress;
- drive.fPacket.fPacketContent = partitionBlockBuf;
- drive.fPacket.fPacketSize = sizeof(NEFS_ROOT_PARTITION_BLOCK);
-
- drive.fInput(drive.fPacket);
-
- NEFS_ROOT_PARTITION_BLOCK* part_block =
- reinterpret_cast<NEFS_ROOT_PARTITION_BLOCK*>(partitionBlockBuf);
-
- --part_block->CatalogCount;
- ++part_block->FreeSectors;
-
- drive.fOutput(drive.fPacket);
-
- return true;
- }
-
- delete catalog;
- catalog = nullptr;
-
- return false;
-}
-
-/// ***************************************************************** ///
-/// Reading,Seek,Tell are unimplemented on catalogs, refer to forks I/O instead.
-/// ***************************************************************** ///
-
-/***********************************************************************************/
-/// @brief Read the catalog data fork.
-/// @param catalog
-/// @param dataSz
-/// @return
-/***********************************************************************************/
-
-VoidPtr NeFileSystemParser::ReadCatalog(_Input _Output NEFS_CATALOG_STRUCT* catalog,
- _Input Bool is_rsrc_fork,
- _Input SizeT dataSz,
- _Input const Char* forkName)
-{
- if (!catalog)
- {
- err_global_get() = kErrorInvalidData;
- return nullptr;
- }
-
- Lba dataForkLba = (!is_rsrc_fork) ? catalog->DataFork : catalog->ResourceFork;
- Size dataForkSize = (!is_rsrc_fork) ? catalog->DataForkSize : catalog->ResourceForkSize;
-
- kout << "catalog " << catalog->Name
- << ", fork: " << hex_number(dataForkLba) << kendl;
-
- NEFS_FORK_STRUCT* fs_buf = new NEFS_FORK_STRUCT();
- auto& drive = kMountpoint.A();
-
- rt_copy_memory((VoidPtr) "fs/nefs-packet", drive.fPacket.fPacketMime,
- rt_string_len("fs/nefs-packet"));
-
- NEFS_FORK_STRUCT* fs_fork_data = nullptr;
-
- while (dataForkLba > kNeFSCatalogStartAddress)
- {
- drive.fPacket.fPacketLba = dataForkLba;
- drive.fPacket.fPacketSize = sizeof(NEFS_FORK_STRUCT);
- drive.fPacket.fPacketContent = fs_buf;
-
- drive.fInput(drive.fPacket);
-
- fs_fork_data = fs_buf;
-
- kout << "ForkName: " << fs_fork_data->ForkName << kendl;
- kout << "CatalogName: " << fs_fork_data->CatalogName << kendl;
-
- if (KStringBuilder::Equals(forkName, fs_fork_data->ForkName) &&
- KStringBuilder::Equals(catalog->Name, fs_fork_data->CatalogName))
- break;
-
- dataForkLba = fs_fork_data->NextSibling;
- }
-
- if (dataForkLba < kNeFSCatalogStartAddress)
- {
- delete fs_buf;
- return nullptr;
- }
-
- return fs_fork_data;
-}
-
-/***********************************************************************************/
-/// @brief Seek in the data fork.
-/// @param catalog the catalog offset.
-/// @param off where to seek.
-/// @return if the seeking was successful.
-/***********************************************************************************/
-
-bool NeFileSystemParser::Seek(_Input _Output NEFS_CATALOG_STRUCT* catalog, SizeT off)
-{
- err_global_get() = kErrorUnimplemented;
- return false;
-}
-
-/***********************************************************************************/
-/// @brief Tell where we are inside the data fork.
-/// @param catalog
-/// @return The position on the file.
-/***********************************************************************************/
-
-SizeT NeFileSystemParser::Tell(_Input _Output NEFS_CATALOG_STRUCT* catalog)
-{
- err_global_get() = kErrorUnimplemented;
- return 0;
-}
-
-namespace NeOS::NeFS
-{
- /***********************************************************************************/
- /// @brief Construct NeFS drives.
- /***********************************************************************************/
- Boolean fs_init_nefs(Void) noexcept
- {
- kout << "Creating main disk...\r";
-
- kMountpoint.A() = io_construct_main_drive();
-
- if (kMountpoint.A().fPacket.fPacketReadOnly == YES)
- ke_panic(RUNTIME_CHECK_FILESYSTEM, "Main filesystem cannot be mounted.");
-
- return YES;
- }
-} // namespace NeOS::NeFS
-
-#endif // ifdef __FSKIT_INCLUDES_NEFS__