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ProcFS: Implement symlink magic
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2 changed files with 148 additions and 0 deletions
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@ -81,8 +81,43 @@ private:
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virtual size_t directory_entry_count() const override;
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virtual KResult chmod(mode_t) override;
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virtual KResult chown(uid_t, gid_t) override;
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virtual KResultOr<NonnullRefPtr<Custody>> resolve_as_link(Custody& base, RefPtr<Custody>* out_parent = nullptr, int options = 0, int symlink_recursion_level = 0) const override;
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ProcFS& fs() { return static_cast<ProcFS&>(Inode::fs()); }
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const ProcFS& fs() const { return static_cast<const ProcFS&>(Inode::fs()); }
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ProcFSInode(ProcFS&, unsigned index);
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};
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class ProcFSProxyInode final : public Inode {
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friend class ProcFSInode;
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public:
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virtual ~ProcFSProxyInode() override;
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private:
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// ^Inode
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virtual ssize_t read_bytes(off_t, ssize_t, u8*, FileDescription*) const override { ASSERT_NOT_REACHED(); }
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virtual InodeMetadata metadata() const override;
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virtual bool traverse_as_directory(Function<bool(const FS::DirectoryEntry&)>) const override { ASSERT_NOT_REACHED(); }
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virtual InodeIdentifier lookup(StringView name) override;
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virtual void flush_metadata() override {};
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virtual ssize_t write_bytes(off_t, ssize_t, const u8*, FileDescription*) override { ASSERT_NOT_REACHED(); }
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virtual KResult add_child(InodeIdentifier child_id, const StringView& name, mode_t) override;
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virtual KResult remove_child(const StringView& name) override;
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virtual size_t directory_entry_count() const override;
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virtual KResult chmod(mode_t) override { return KResult(-EINVAL); }
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virtual KResult chown(uid_t, gid_t) override { return KResult(-EINVAL); }
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virtual KResultOr<NonnullRefPtr<Custody>> resolve_as_link(Custody&, RefPtr<Custody>*, int, int) const override { ASSERT_NOT_REACHED(); }
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virtual FileDescription* preopen_fd() override { return m_fd; }
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ProcFS& fs() { return static_cast<ProcFS&>(Inode::fs()); }
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const ProcFS& fs() const { return static_cast<const ProcFS&>(Inode::fs()); }
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ProcFSProxyInode(ProcFS&, FileDescription&);
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static NonnullRefPtr<ProcFSProxyInode> create(ProcFS& fs, FileDescription& fd)
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{
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return adopt(*new ProcFSProxyInode(fs, fd));
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}
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NonnullRefPtr<FileDescription> m_fd;
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};
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