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https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-20 01:37:39 +03:00
Kernel: Make file description lookup return KResultOr
Instead of checking it at every call site (to generate EBADF), we make file_description(fd) return a KResultOr<NonnullRefPtr<FileDescription>>. This allows us to wrap all the calls in TRY(). :^) The only place that got a little bit messier from this is sys$mount(), and there's a whole bunch of things there in need of cleanup.
This commit is contained in:
parent
2d2ea05c97
commit
a9204510a4
Notes:
sideshowbarker
2024-07-18 04:40:44 +09:00
Author: https://github.com/awesomekling Commit: https://github.com/SerenityOS/serenity/commit/a9204510a4c
@ -452,14 +452,17 @@ Process::FileDescriptionAndFlags& Process::FileDescriptions::at(size_t i)
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return m_fds_metadatas[i];
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}
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RefPtr<FileDescription> Process::FileDescriptions::file_description(int fd) const
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KResultOr<NonnullRefPtr<FileDescription>> Process::FileDescriptions::file_description(int fd) const
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{
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SpinlockLocker lock(m_fds_lock);
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if (fd < 0)
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return nullptr;
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if (static_cast<size_t>(fd) < m_fds_metadatas.size())
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return m_fds_metadatas[fd].description();
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return nullptr;
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return EBADF;
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if (static_cast<size_t>(fd) >= m_fds_metadatas.size())
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return EBADF;
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RefPtr description = m_fds_metadatas[fd].description();
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if (!description)
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return EBADF;
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return description.release_nonnull();
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}
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void Process::FileDescriptions::enumerate(Function<void(const FileDescriptionAndFlags&)> callback) const
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@ -676,8 +676,7 @@ public:
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m_fds_metadatas.clear();
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}
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// FIXME: Consider to remove this somehow
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RefPtr<FileDescription> file_description(int fd) const;
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KResultOr<NonnullRefPtr<FileDescription>> file_description(int fd) const;
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private:
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FileDescriptions() = default;
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@ -79,9 +79,7 @@ KResultOr<NonnullRefPtr<Inode>> Process::lookup_stacks_directory(const ProcFS& p
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KResultOr<size_t> Process::procfs_get_file_description_link(unsigned fd, KBufferBuilder& builder) const
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{
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auto file_description = m_fds.file_description(fd);
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if (!file_description)
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return EBADF;
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auto file_description = TRY(m_fds.file_description(fd));
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auto data = file_description->absolute_path();
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builder.append(data);
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return data.length();
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@ -23,16 +23,11 @@ KResultOr<FlatPtr> Process::sys$fchdir(int fd)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
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REQUIRE_PROMISE(stdio);
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auto description = fds().file_description(fd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(fd));
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if (!description->is_directory())
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return ENOTDIR;
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if (!description->metadata().may_execute(*this))
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return EACCES;
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m_cwd = description->custody();
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return 0;
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}
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@ -22,9 +22,7 @@ KResultOr<FlatPtr> Process::sys$fchmod(int fd, mode_t mode)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
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REQUIRE_PROMISE(fattr);
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auto description = fds().file_description(fd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(fd));
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return description->chmod(mode);
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}
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@ -13,9 +13,7 @@ KResultOr<FlatPtr> Process::sys$fchown(int fd, UserID uid, GroupID gid)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
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REQUIRE_PROMISE(chown);
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auto description = fds().file_description(fd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(fd));
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return description->chown(uid, gid);
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}
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@ -13,16 +13,14 @@ KResultOr<FlatPtr> Process::sys$dup2(int old_fd, int new_fd)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
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REQUIRE_PROMISE(stdio);
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auto description = fds().file_description(old_fd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(old_fd));
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if (old_fd == new_fd)
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return new_fd;
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if (new_fd < 0 || static_cast<size_t>(new_fd) >= fds().max_open())
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return EINVAL;
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if (!m_fds.m_fds_metadatas[new_fd].is_allocated())
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m_fds.m_fds_metadatas[new_fd].allocate();
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m_fds[new_fd].set(*description);
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m_fds[new_fd].set(move(description));
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return new_fd;
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}
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@ -15,9 +15,7 @@ KResultOr<FlatPtr> Process::sys$fcntl(int fd, int cmd, u32 arg)
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
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REQUIRE_PROMISE(stdio);
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dbgln_if(IO_DEBUG, "sys$fcntl: fd={}, cmd={}, arg={}", fd, cmd, arg);
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auto description = fds().file_description(fd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(fd));
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// NOTE: The FD flags are not shared between FileDescription objects.
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// This means that dup() doesn't copy the FD_CLOEXEC flag!
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switch (cmd) {
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@ -17,9 +17,7 @@ KResultOr<FlatPtr> Process::sys$ftruncate(int fd, Userspace<off_t*> userspace_le
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TRY(copy_from_user(&length, userspace_length));
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if (length < 0)
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return EINVAL;
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auto description = fds().file_description(fd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(fd));
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if (!description->is_writable())
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return EBADF;
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return description->truncate(static_cast<u64>(length));
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@ -15,9 +15,7 @@ KResultOr<FlatPtr> Process::sys$get_dir_entries(int fd, Userspace<void*> user_bu
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REQUIRE_PROMISE(stdio);
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if (user_size > NumericLimits<ssize_t>::max())
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return EINVAL;
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auto description = fds().file_description(fd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(fd));
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auto buffer = UserOrKernelBuffer::for_user_buffer(user_buffer, static_cast<size_t>(user_size));
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if (!buffer.has_value())
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return EFAULT;
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@ -48,9 +48,7 @@ KResultOr<FlatPtr> Process::sys$inode_watcher_add_watch(Userspace<const Syscall:
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REQUIRE_PROMISE(rpath);
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auto params = TRY(copy_typed_from_user(user_params));
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auto description = fds().file_description(params.fd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(params.fd));
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if (!description->is_inode_watcher())
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return EBADF;
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auto inode_watcher = description->inode_watcher();
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@ -76,9 +74,7 @@ KResultOr<FlatPtr> Process::sys$inode_watcher_add_watch(Userspace<const Syscall:
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KResultOr<FlatPtr> Process::sys$inode_watcher_remove_watch(int fd, int wd)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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auto description = fds().file_description(fd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(fd));
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if (!description->is_inode_watcher())
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return EBADF;
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auto inode_watcher = description->inode_watcher();
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@ -13,9 +13,7 @@ namespace Kernel {
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KResultOr<FlatPtr> Process::sys$ioctl(int fd, unsigned request, FlatPtr arg)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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auto description = fds().file_description(fd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(fd));
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if (request == FIONBIO) {
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description->set_blocking(arg == 0);
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return KSuccess;
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@ -13,9 +13,7 @@ KResultOr<FlatPtr> Process::sys$lseek(int fd, Userspace<off_t*> userspace_offset
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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REQUIRE_PROMISE(stdio);
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auto description = fds().file_description(fd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(fd));
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off_t offset;
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TRY(copy_from_user(&offset, userspace_offset));
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auto seek_result = TRY(description->seek(offset, whence));
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@ -223,9 +223,7 @@ KResultOr<FlatPtr> Process::sys$mmap(Userspace<const Syscall::SC_mmap_params*> u
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return EINVAL;
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if (static_cast<size_t>(offset) & ~PAGE_MASK)
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return EINVAL;
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auto description = fds().file_description(fd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(fd));
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if (description->is_directory())
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return ENODEV;
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// Require read access even when read protection is not requested.
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@ -32,8 +32,8 @@ KResultOr<FlatPtr> Process::sys$mount(Userspace<const Syscall::SC_mount_params*>
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auto fs_type_string = TRY(try_copy_kstring_from_user(params.fs_type));
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auto fs_type = fs_type_string->view();
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auto description = fds().file_description(source_fd);
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if (!description.is_null())
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auto description_or_error = fds().file_description(source_fd);
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if (!description_or_error.is_error())
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dbgln("mount {}: source fd {} @ {}", fs_type, source_fd, target);
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else
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dbgln("mount {} @ {}", fs_type, target);
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@ -47,8 +47,9 @@ KResultOr<FlatPtr> Process::sys$mount(Userspace<const Syscall::SC_mount_params*>
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if (params.flags & MS_BIND) {
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// We're doing a bind mount.
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if (description.is_null())
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return EBADF;
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if (description_or_error.is_error())
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return description_or_error.error();
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auto description = description_or_error.release_value();
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if (!description->custody()) {
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// We only support bind-mounting inodes, not arbitrary files.
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return ENODEV;
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@ -59,8 +60,9 @@ KResultOr<FlatPtr> Process::sys$mount(Userspace<const Syscall::SC_mount_params*>
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RefPtr<FileSystem> fs;
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if (fs_type == "ext2"sv || fs_type == "Ext2FS"sv) {
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if (description.is_null())
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if (description_or_error.is_error())
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return EBADF;
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auto description = description_or_error.release_value();
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if (!description->file().is_block_device())
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return ENOTBLK;
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if (!description->file().is_seekable()) {
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@ -72,9 +74,9 @@ KResultOr<FlatPtr> Process::sys$mount(Userspace<const Syscall::SC_mount_params*>
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fs = Ext2FS::create(*description);
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} else if (fs_type == "9p"sv || fs_type == "Plan9FS"sv) {
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if (description.is_null())
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if (description_or_error.is_error())
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return EBADF;
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auto description = description_or_error.release_value();
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fs = Plan9FS::create(*description);
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} else if (fs_type == "proc"sv || fs_type == "ProcFS"sv) {
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fs = TRY(ProcFS::try_create());
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@ -87,15 +89,14 @@ KResultOr<FlatPtr> Process::sys$mount(Userspace<const Syscall::SC_mount_params*>
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} else if (fs_type == "tmp"sv || fs_type == "TmpFS"sv) {
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fs = TmpFS::create();
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} else if (fs_type == "iso9660"sv || fs_type == "ISO9660FS"sv) {
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if (description.is_null())
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if (description_or_error.is_error())
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return EBADF;
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auto description = description_or_error.release_value();
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if (!description->file().is_seekable()) {
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dbgln("mount: this is not a seekable file");
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return ENODEV;
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}
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dbgln("mount: attempting to mount {} on {}", description->absolute_path(), target);
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fs = TRY(ISO9660FS::try_create(*description));
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} else {
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return ENODEV;
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@ -46,9 +46,7 @@ KResultOr<FlatPtr> Process::sys$open(Userspace<const Syscall::SC_open_params*> u
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if (dirfd == AT_FDCWD) {
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base = current_directory();
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} else {
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auto base_description = fds().file_description(dirfd);
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if (!base_description)
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return EBADF;
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auto base_description = TRY(fds().file_description(dirfd));
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if (!base_description->is_directory())
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return ENOTDIR;
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if (!base_description->custody())
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@ -70,10 +68,7 @@ KResultOr<FlatPtr> Process::sys$close(int fd)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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REQUIRE_PROMISE(stdio);
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auto description = fds().file_description(fd);
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dbgln_if(IO_DEBUG, "sys$close({}) {}", fd, description.ptr());
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(fd));
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auto result = description->close();
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m_fds[fd] = {};
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return result;
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@ -34,13 +34,9 @@ KResultOr<FlatPtr> Process::sys$readv(int fd, Userspace<const struct iovec*> iov
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return EINVAL;
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}
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auto description = fds().file_description(fd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(fd));
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if (!description->is_readable())
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return EBADF;
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if (description->is_directory())
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return EISDIR;
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@ -75,9 +71,7 @@ KResultOr<FlatPtr> Process::sys$read(int fd, Userspace<u8*> buffer, size_t size)
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if (size > NumericLimits<ssize_t>::max())
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return EINVAL;
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dbgln_if(IO_DEBUG, "sys$read({}, {}, {})", fd, buffer.ptr(), size);
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auto description = fds().file_description(fd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(fd));
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if (!description->is_readable())
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return EBADF;
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if (description->is_directory())
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@ -73,12 +73,8 @@ KResultOr<FlatPtr> Process::sys$select(Userspace<const Syscall::SC_select_params
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if (block_flags == BlockFlags::None)
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continue;
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auto description = fds().file_description(fd);
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if (!description) {
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dbgln("sys$select: Bad fd number {}", fd);
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return EBADF;
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}
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if (!fds_info.try_append({ description.release_nonnull(), block_flags }))
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auto description = TRY(fds().file_description(fd));
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if (!fds_info.try_append({ move(description), block_flags }))
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return ENOMEM;
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if (!selected_fds.try_append(fd))
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return ENOMEM;
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@ -162,11 +158,7 @@ KResultOr<FlatPtr> Process::sys$poll(Userspace<const Syscall::SC_poll_params*> u
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Thread::SelectBlocker::FDVector fds_info;
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for (size_t i = 0; i < params.nfds; i++) {
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auto& pfd = fds_copy[i];
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auto description = fds().file_description(pfd.fd);
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if (!description) {
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dbgln("sys$poll: Bad fd number {}", pfd.fd);
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return EBADF;
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}
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auto description = TRY(fds().file_description(pfd.fd));
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BlockFlags block_flags = BlockFlags::Exception; // always want POLLERR, POLLHUP, POLLNVAL
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if (pfd.events & POLLIN)
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block_flags |= BlockFlags::Read;
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@ -174,7 +166,7 @@ KResultOr<FlatPtr> Process::sys$poll(Userspace<const Syscall::SC_poll_params*> u
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block_flags |= BlockFlags::Write;
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if (pfd.events & POLLPRI)
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block_flags |= BlockFlags::ReadPriority;
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if (!fds_info.try_append({ description.release_nonnull(), block_flags }))
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if (!fds_info.try_append({ move(description), block_flags }))
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return ENOMEM;
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}
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@ -14,9 +14,7 @@ KResultOr<FlatPtr> Process::sys$sendfd(int sockfd, int fd)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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REQUIRE_PROMISE(sendfd);
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auto socket_description = fds().file_description(sockfd);
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if (!socket_description)
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return EBADF;
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auto socket_description = TRY(fds().file_description(sockfd));
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if (!socket_description->is_socket())
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return ENOTSOCK;
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auto& socket = *socket_description->socket();
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@ -25,10 +23,7 @@ KResultOr<FlatPtr> Process::sys$sendfd(int sockfd, int fd)
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if (!socket.is_connected())
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return ENOTCONN;
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auto passing_descriptor = fds().file_description(fd);
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if (!passing_descriptor)
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return EBADF;
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auto passing_descriptor = TRY(fds().file_description(fd));
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auto& local_socket = static_cast<LocalSocket&>(socket);
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return local_socket.sendfd(*socket_description, *passing_descriptor);
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}
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@ -37,9 +32,7 @@ KResultOr<FlatPtr> Process::sys$recvfd(int sockfd, int options)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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REQUIRE_PROMISE(recvfd);
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auto socket_description = fds().file_description(sockfd);
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if (!socket_description)
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return EBADF;
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auto socket_description = TRY(fds().file_description(sockfd));
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if (!socket_description->is_socket())
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return ENOTSOCK;
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auto& socket = *socket_description->socket();
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@ -48,9 +48,7 @@ KResultOr<FlatPtr> Process::sys$socket(int domain, int type, int protocol)
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KResultOr<FlatPtr> Process::sys$bind(int sockfd, Userspace<const sockaddr*> address, socklen_t address_length)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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auto description = fds().file_description(sockfd);
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if (!description)
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return EBADF;
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auto description = TRY(fds().file_description(sockfd));
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if (!description->is_socket())
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return ENOTSOCK;
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auto& socket = *description->socket();
|
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@ -63,9 +61,7 @@ KResultOr<FlatPtr> Process::sys$listen(int sockfd, int backlog)
|
||||
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
|
||||
if (backlog < 0)
|
||||
return EINVAL;
|
||||
auto description = fds().file_description(sockfd);
|
||||
if (!description)
|
||||
return EBADF;
|
||||
auto description = TRY(fds().file_description(sockfd));
|
||||
if (!description->is_socket())
|
||||
return ENOTSOCK;
|
||||
auto& socket = *description->socket();
|
||||
@ -92,9 +88,7 @@ KResultOr<FlatPtr> Process::sys$accept4(Userspace<const Syscall::SC_accept4_para
|
||||
}
|
||||
|
||||
auto fd_allocation = TRY(m_fds.allocate());
|
||||
auto accepting_socket_description = fds().file_description(accepting_socket_fd);
|
||||
if (!accepting_socket_description)
|
||||
return EBADF;
|
||||
auto accepting_socket_description = TRY(fds().file_description(accepting_socket_fd));
|
||||
if (!accepting_socket_description->is_socket())
|
||||
return ENOTSOCK;
|
||||
auto& socket = *accepting_socket_description->socket();
|
||||
@ -138,15 +132,11 @@ KResultOr<FlatPtr> Process::sys$accept4(Userspace<const Syscall::SC_accept4_para
|
||||
KResultOr<FlatPtr> Process::sys$connect(int sockfd, Userspace<const sockaddr*> user_address, socklen_t user_address_size)
|
||||
{
|
||||
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
|
||||
auto description = fds().file_description(sockfd);
|
||||
if (!description)
|
||||
return EBADF;
|
||||
auto description = TRY(fds().file_description(sockfd));
|
||||
if (!description->is_socket())
|
||||
return ENOTSOCK;
|
||||
|
||||
auto& socket = *description->socket();
|
||||
REQUIRE_PROMISE_FOR_SOCKET_DOMAIN(socket.domain());
|
||||
|
||||
return socket.connect(*description, user_address, user_address_size, description->is_blocking() ? ShouldBlock::Yes : ShouldBlock::No);
|
||||
}
|
||||
|
||||
@ -156,12 +146,9 @@ KResultOr<FlatPtr> Process::sys$shutdown(int sockfd, int how)
|
||||
REQUIRE_PROMISE(stdio);
|
||||
if (how & ~SHUT_RDWR)
|
||||
return EINVAL;
|
||||
auto description = fds().file_description(sockfd);
|
||||
if (!description)
|
||||
return EBADF;
|
||||
auto description = TRY(fds().file_description(sockfd));
|
||||
if (!description->is_socket())
|
||||
return ENOTSOCK;
|
||||
|
||||
auto& socket = *description->socket();
|
||||
REQUIRE_PROMISE_FOR_SOCKET_DOMAIN(socket.domain());
|
||||
return socket.shutdown(how);
|
||||
@ -186,9 +173,7 @@ KResultOr<FlatPtr> Process::sys$sendmsg(int sockfd, Userspace<const struct msghd
|
||||
Userspace<const sockaddr*> user_addr((FlatPtr)msg.msg_name);
|
||||
socklen_t addr_length = msg.msg_namelen;
|
||||
|
||||
auto description = fds().file_description(sockfd);
|
||||
if (!description)
|
||||
return EBADF;
|
||||
auto description = TRY(fds().file_description(sockfd));
|
||||
if (!description->is_socket())
|
||||
return ENOTSOCK;
|
||||
auto& socket = *description->socket();
|
||||
@ -222,9 +207,7 @@ KResultOr<FlatPtr> Process::sys$recvmsg(int sockfd, Userspace<struct msghdr*> us
|
||||
Userspace<sockaddr*> user_addr((FlatPtr)msg.msg_name);
|
||||
Userspace<socklen_t*> user_addr_length(msg.msg_name ? (FlatPtr)&user_msg.unsafe_userspace_ptr()->msg_namelen : 0);
|
||||
|
||||
auto description = fds().file_description(sockfd);
|
||||
if (!description)
|
||||
return EBADF;
|
||||
auto description = TRY(fds().file_description(sockfd));
|
||||
if (!description->is_socket())
|
||||
return ENOTSOCK;
|
||||
auto& socket = *description->socket();
|
||||
@ -282,10 +265,7 @@ KResult Process::get_sock_or_peer_name(const Params& params)
|
||||
if (addrlen_value <= 0)
|
||||
return EINVAL;
|
||||
|
||||
auto description = fds().file_description(params.sockfd);
|
||||
if (!description)
|
||||
return EBADF;
|
||||
|
||||
auto description = TRY(fds().file_description(params.sockfd));
|
||||
if (!description->is_socket())
|
||||
return ENOTSOCK;
|
||||
|
||||
@ -330,13 +310,10 @@ KResultOr<FlatPtr> Process::sys$getsockopt(Userspace<const Syscall::SC_getsockop
|
||||
socklen_t value_size;
|
||||
TRY(copy_from_user(&value_size, params.value_size, sizeof(socklen_t)));
|
||||
|
||||
auto description = fds().file_description(sockfd);
|
||||
if (!description)
|
||||
return EBADF;
|
||||
auto description = TRY(fds().file_description(sockfd));
|
||||
if (!description->is_socket())
|
||||
return ENOTSOCK;
|
||||
auto& socket = *description->socket();
|
||||
|
||||
REQUIRE_PROMISE_FOR_SOCKET_DOMAIN(socket.domain());
|
||||
return socket.getsockopt(*description, level, option, user_value, user_value_size);
|
||||
}
|
||||
@ -347,9 +324,7 @@ KResultOr<FlatPtr> Process::sys$setsockopt(Userspace<const Syscall::SC_setsockop
|
||||
auto params = TRY(copy_typed_from_user(user_params));
|
||||
|
||||
Userspace<const void*> user_value((FlatPtr)params.value);
|
||||
auto description = fds().file_description(params.sockfd);
|
||||
if (!description)
|
||||
return EBADF;
|
||||
auto description = TRY(fds().file_description(params.sockfd));
|
||||
if (!description->is_socket())
|
||||
return ENOTSOCK;
|
||||
auto& socket = *description->socket();
|
||||
|
@ -15,9 +15,7 @@ KResultOr<FlatPtr> Process::sys$fstat(int fd, Userspace<stat*> user_statbuf)
|
||||
{
|
||||
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
|
||||
REQUIRE_PROMISE(stdio);
|
||||
auto description = fds().file_description(fd);
|
||||
if (!description)
|
||||
return EBADF;
|
||||
auto description = TRY(fds().file_description(fd));
|
||||
stat buffer = {};
|
||||
TRY(description->stat(buffer));
|
||||
return copy_to_user(user_statbuf, &buffer);
|
||||
@ -35,9 +33,7 @@ KResultOr<FlatPtr> Process::sys$stat(Userspace<const Syscall::SC_stat_params*> u
|
||||
if (params.dirfd == AT_FDCWD) {
|
||||
base = current_directory();
|
||||
} else {
|
||||
auto base_description = fds().file_description(params.dirfd);
|
||||
if (!base_description)
|
||||
return EBADF;
|
||||
auto base_description = TRY(fds().file_description(params.dirfd));
|
||||
if (!base_description->is_directory())
|
||||
return ENOTDIR;
|
||||
if (!base_description->custody())
|
||||
|
@ -76,10 +76,7 @@ KResultOr<FlatPtr> Process::sys$fstatvfs(int fd, statvfs* buf)
|
||||
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
|
||||
REQUIRE_PROMISE(stdio);
|
||||
|
||||
auto description = fds().file_description(fd);
|
||||
if (!description)
|
||||
return EBADF;
|
||||
|
||||
auto description = TRY(fds().file_description(fd));
|
||||
return do_statvfs(description->absolute_path(), buf);
|
||||
}
|
||||
|
||||
|
@ -15,9 +15,7 @@ KResultOr<FlatPtr> Process::sys$ttyname(int fd, Userspace<char*> buffer, size_t
|
||||
{
|
||||
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
|
||||
REQUIRE_PROMISE(tty);
|
||||
auto description = fds().file_description(fd);
|
||||
if (!description)
|
||||
return EBADF;
|
||||
auto description = TRY(fds().file_description(fd));
|
||||
if (!description->is_tty())
|
||||
return ENOTTY;
|
||||
auto tty_name = description->tty()->tty_name();
|
||||
@ -30,9 +28,7 @@ KResultOr<FlatPtr> Process::sys$ptsname(int fd, Userspace<char*> buffer, size_t
|
||||
{
|
||||
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
|
||||
REQUIRE_PROMISE(tty);
|
||||
auto description = fds().file_description(fd);
|
||||
if (!description)
|
||||
return EBADF;
|
||||
auto description = TRY(fds().file_description(fd));
|
||||
auto* master_pty = description->master_pty();
|
||||
if (!master_pty)
|
||||
return ENOTTY;
|
||||
|
@ -33,10 +33,7 @@ KResultOr<FlatPtr> Process::sys$writev(int fd, Userspace<const struct iovec*> io
|
||||
return EINVAL;
|
||||
}
|
||||
|
||||
auto description = fds().file_description(fd);
|
||||
if (!description)
|
||||
return EBADF;
|
||||
|
||||
auto description = TRY(fds().file_description(fd));
|
||||
if (!description->is_writable())
|
||||
return EBADF;
|
||||
|
||||
@ -104,9 +101,7 @@ KResultOr<FlatPtr> Process::sys$write(int fd, Userspace<const u8*> data, size_t
|
||||
return EINVAL;
|
||||
|
||||
dbgln_if(IO_DEBUG, "sys$write({}, {}, {})", fd, data.ptr(), size);
|
||||
auto description = fds().file_description(fd);
|
||||
if (!description)
|
||||
return EBADF;
|
||||
auto description = TRY(fds().file_description(fd));
|
||||
if (!description->is_writable())
|
||||
return EBADF;
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user