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Kernel/LibC: Implement rename{,at}

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Bananymous
2025-11-22 23:53:52 +02:00
parent 05d59a05df
commit 4ec8f4a4bf
10 changed files with 135 additions and 60 deletions
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2
kernel/include/kernel/FS/Ext2/Inode.h
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@@ -37,6 +37,7 @@ namespace Kernel
virtual BAN::ErrorOr<void> create_file_impl(BAN::StringView, mode_t, uid_t, gid_t) override;
virtual BAN::ErrorOr<void> create_directory_impl(BAN::StringView, mode_t, uid_t, gid_t) override;
virtual BAN::ErrorOr<void> link_inode_impl(BAN::StringView, BAN::RefPtr<Inode>) override;
virtual BAN::ErrorOr<void> rename_inode_impl(BAN::RefPtr<Inode>, BAN::StringView, BAN::StringView) override;
virtual BAN::ErrorOr<void> unlink_impl(BAN::StringView) override;
virtual BAN::ErrorOr<BAN::String> link_target_impl() override;
@@ -64,6 +65,7 @@ namespace Kernel
BAN::ErrorOr<BAN::Optional<uint32_t>> fs_block_of_data_block_index(uint32_t data_block_index);
BAN::ErrorOr<void> link_inode_to_directory(Ext2Inode&, BAN::StringView name);
BAN::ErrorOr<void> remove_inode_from_directory(BAN::StringView name, bool cleanup_directory);
BAN::ErrorOr<bool> is_directory_empty();
BAN::ErrorOr<void> cleanup_indirect_block(uint32_t block, uint32_t depth);

16
kernel/include/kernel/FS/Inode.h
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@@ -97,6 +97,7 @@ namespace Kernel
BAN::ErrorOr<void> create_file(BAN::StringView, mode_t, uid_t, gid_t);
BAN::ErrorOr<void> create_directory(BAN::StringView, mode_t, uid_t, gid_t);
BAN::ErrorOr<void> link_inode(BAN::StringView, BAN::RefPtr<Inode>);
BAN::ErrorOr<void> rename_inode(BAN::RefPtr<Inode>, BAN::StringView, BAN::StringView);
BAN::ErrorOr<void> unlink(BAN::StringView);
// Link API
@@ -139,12 +140,13 @@ namespace Kernel
protected:
// Directory API
virtual BAN::ErrorOr<BAN::RefPtr<Inode>> find_inode_impl(BAN::StringView) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<size_t> list_next_inodes_impl(off_t, struct dirent*, size_t) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<void> create_file_impl(BAN::StringView, mode_t, uid_t, gid_t) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<void> create_directory_impl(BAN::StringView, mode_t, uid_t, gid_t) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<void> link_inode_impl(BAN::StringView, BAN::RefPtr<Inode>) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<void> unlink_impl(BAN::StringView) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<BAN::RefPtr<Inode>> find_inode_impl(BAN::StringView) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<size_t> list_next_inodes_impl(off_t, struct dirent*, size_t) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<void> create_file_impl(BAN::StringView, mode_t, uid_t, gid_t) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<void> create_directory_impl(BAN::StringView, mode_t, uid_t, gid_t) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<void> link_inode_impl(BAN::StringView, BAN::RefPtr<Inode>) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<void> rename_inode_impl(BAN::RefPtr<Inode>, BAN::StringView, BAN::StringView) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<void> unlink_impl(BAN::StringView) { return BAN::Error::from_errno(ENOTSUP); }
// Link API
virtual BAN::ErrorOr<BAN::String> link_target_impl() { return BAN::Error::from_errno(ENOTSUP); }
@@ -187,7 +189,7 @@ namespace Kernel
friend class Epoll;
friend class FileBackedRegion;
friend class OpenFileDescriptorSet;
friend class SharedFileData;
friend struct SharedFileData;
friend class TTY;
};

3
kernel/include/kernel/FS/TmpFS/Inode.h
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@@ -157,6 +157,7 @@ namespace Kernel
virtual BAN::ErrorOr<void> create_file_impl(BAN::StringView, mode_t, uid_t, gid_t) override final;
virtual BAN::ErrorOr<void> create_directory_impl(BAN::StringView, mode_t, uid_t, gid_t) override final;
virtual BAN::ErrorOr<void> link_inode_impl(BAN::StringView, BAN::RefPtr<Inode>) override final;
virtual BAN::ErrorOr<void> rename_inode_impl(BAN::RefPtr<Inode>, BAN::StringView, BAN::StringView) override final;
virtual BAN::ErrorOr<void> unlink_impl(BAN::StringView) override;
virtual bool can_read_impl() const override { return false; }
@@ -168,6 +169,8 @@ namespace Kernel
template<TmpFuncs::for_each_valid_entry_callback F>
void for_each_valid_entry(F callback);
BAN::ErrorOr<void> unlink_inode(BAN::StringView, bool cleanup);
friend class TmpInode;
};

2
kernel/include/kernel/Process.h
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@@ -109,9 +109,9 @@ namespace Kernel
BAN::ErrorOr<long> sys_access(const char* path, int amode);
BAN::ErrorOr<long> sys_create_dir(const char*, mode_t);
BAN::ErrorOr<long> sys_hardlinkat(int fd1, const char* path1, int fd2, const char* path2, int flag);
BAN::ErrorOr<long> sys_renameat(int oldfd, const char* old, int newfd, const char* _new);
BAN::ErrorOr<long> sys_unlinkat(int fd, const char* path, int flag);
BAN::ErrorOr<long> sys_readlinkat(int fd, const char* path, char* buffer, size_t bufsize);
BAN::ErrorOr<long> sys_symlinkat(const char* path1, int fd, const char* path2);
BAN::ErrorOr<long> sys_flock(int fd, int op);