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Kernel/LibC: Implement {,f}statvfs

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Bananymous
2024-12-02 06:55:35 +02:00
parent ad1f175a39
commit a10ca47657
21 changed files with 173 additions and 5 deletions
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14
kernel/kernel/FS/FAT/FileSystem.cpp
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@@ -64,6 +64,18 @@ namespace Kernel
return validate_bpb(bpb_span.as<const FAT::BPB>());
}
unsigned long FATFS::bsize() const { return m_bpb.bytes_per_sector; }
unsigned long FATFS::frsize() const { return m_bpb.bytes_per_sector; }
fsblkcnt_t FATFS::blocks() const { return data_sector_count(); }
fsblkcnt_t FATFS::bfree() const { return 0; } // FIXME
fsblkcnt_t FATFS::bavail() const { return 0; } // FIXME
fsfilcnt_t FATFS::files() const { return m_bpb.number_of_fats * fat_size() * 8 / bits_per_fat_entry(); }
fsfilcnt_t FATFS::ffree() const { return 0; } // FIXME
fsfilcnt_t FATFS::favail() const { return 0; } // FIXME
unsigned long FATFS::fsid() const { return m_type == Type::FAT32 ? m_bpb.ext_32.volume_id : m_bpb.ext_12_16.volume_id; }
unsigned long FATFS::flag() const { return 0; }
unsigned long FATFS::namemax() const { return 255; }
BAN::ErrorOr<BAN::RefPtr<FATFS>> FATFS::create(BAN::RefPtr<BlockDevice> block_device)
{
// support only block devices with sectors at least 512 bytes
@@ -226,7 +238,7 @@ namespace Kernel
{
if (index >= root_sector_count())
return BAN::Error::from_errno(ENOENT);
const uint32_t first_root_sector = m_bpb.reserved_sector_count + (m_bpb.number_of_fats * fat_sector_count());
const uint32_t first_root_sector = m_bpb.reserved_sector_count + (m_bpb.number_of_fats * fat_size());
TRY(m_block_device->read_blocks(first_root_sector + index, 1, buffer));
return {};
}

5
kernel/kernel/FS/FAT/Inode.cpp
View File

@@ -46,6 +46,11 @@ namespace Kernel
return timespec { .tv_sec = epoch, .tv_nsec = 0 };
}
const FileSystem* FATInode::filesystem() const
{
return &m_fs;
}
BAN::ErrorOr<void> FATInode::for_each_directory_entry(BAN::ConstByteSpan entry_span, BAN::Function<BAN::Iteration(const FAT::DirectoryEntry&)> callback)
{
ASSERT(mode().ifdir());