mirror of
https://github.com/LadybirdBrowser/ladybird.git
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2b0b7cc5a4
Calling shutdown prevents further reads and/or writes on a socket. We should do a few more things based on the type of socket, but this initial implementation just puts the basic mechanism in place. Work towards #428.
471 lines
15 KiB
C++
471 lines
15 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/Types.h>
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#ifdef __serenity__
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# include <LibC/fd_set.h>
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#endif
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extern "C" {
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struct timeval;
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struct timespec;
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struct sockaddr;
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struct siginfo;
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typedef u32 socklen_t;
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}
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#define ENUMERATE_SYSCALLS \
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__ENUMERATE_SYSCALL(sleep) \
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__ENUMERATE_SYSCALL(yield) \
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__ENUMERATE_SYSCALL(open) \
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__ENUMERATE_SYSCALL(close) \
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__ENUMERATE_SYSCALL(read) \
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__ENUMERATE_SYSCALL(lseek) \
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__ENUMERATE_SYSCALL(kill) \
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__ENUMERATE_SYSCALL(getuid) \
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__ENUMERATE_SYSCALL(exit) \
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__ENUMERATE_SYSCALL(getgid) \
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__ENUMERATE_SYSCALL(getpid) \
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__ENUMERATE_SYSCALL(waitid) \
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__ENUMERATE_SYSCALL(mmap) \
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__ENUMERATE_SYSCALL(munmap) \
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__ENUMERATE_SYSCALL(get_dir_entries) \
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__ENUMERATE_SYSCALL(lstat) \
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__ENUMERATE_SYSCALL(getcwd) \
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__ENUMERATE_SYSCALL(gettimeofday) \
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__ENUMERATE_SYSCALL(gethostname) \
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__ENUMERATE_SYSCALL(chdir) \
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__ENUMERATE_SYSCALL(uname) \
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__ENUMERATE_SYSCALL(set_mmap_name) \
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__ENUMERATE_SYSCALL(readlink) \
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__ENUMERATE_SYSCALL(write) \
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__ENUMERATE_SYSCALL(ttyname_r) \
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__ENUMERATE_SYSCALL(stat) \
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__ENUMERATE_SYSCALL(getsid) \
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__ENUMERATE_SYSCALL(setsid) \
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__ENUMERATE_SYSCALL(getpgid) \
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__ENUMERATE_SYSCALL(setpgid) \
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__ENUMERATE_SYSCALL(getpgrp) \
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__ENUMERATE_SYSCALL(fork) \
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__ENUMERATE_SYSCALL(execve) \
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__ENUMERATE_SYSCALL(geteuid) \
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__ENUMERATE_SYSCALL(getegid) \
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__ENUMERATE_SYSCALL(getdtablesize) \
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__ENUMERATE_SYSCALL(dup) \
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__ENUMERATE_SYSCALL(dup2) \
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__ENUMERATE_SYSCALL(sigaction) \
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__ENUMERATE_SYSCALL(getppid) \
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__ENUMERATE_SYSCALL(umask) \
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__ENUMERATE_SYSCALL(getgroups) \
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__ENUMERATE_SYSCALL(setgroups) \
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__ENUMERATE_SYSCALL(sigreturn) \
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__ENUMERATE_SYSCALL(sigprocmask) \
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__ENUMERATE_SYSCALL(sigpending) \
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__ENUMERATE_SYSCALL(pipe) \
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__ENUMERATE_SYSCALL(killpg) \
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__ENUMERATE_SYSCALL(setuid) \
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__ENUMERATE_SYSCALL(setgid) \
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__ENUMERATE_SYSCALL(alarm) \
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__ENUMERATE_SYSCALL(fstat) \
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__ENUMERATE_SYSCALL(access) \
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__ENUMERATE_SYSCALL(fcntl) \
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__ENUMERATE_SYSCALL(ioctl) \
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__ENUMERATE_SYSCALL(mkdir) \
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__ENUMERATE_SYSCALL(times) \
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__ENUMERATE_SYSCALL(utime) \
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__ENUMERATE_SYSCALL(sync) \
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__ENUMERATE_SYSCALL(ptsname_r) \
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__ENUMERATE_SYSCALL(select) \
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__ENUMERATE_SYSCALL(unlink) \
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__ENUMERATE_SYSCALL(poll) \
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__ENUMERATE_SYSCALL(rmdir) \
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__ENUMERATE_SYSCALL(chmod) \
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__ENUMERATE_SYSCALL(usleep) \
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__ENUMERATE_SYSCALL(socket) \
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__ENUMERATE_SYSCALL(bind) \
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__ENUMERATE_SYSCALL(accept) \
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__ENUMERATE_SYSCALL(listen) \
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__ENUMERATE_SYSCALL(connect) \
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__ENUMERATE_SYSCALL(create_shared_buffer) \
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__ENUMERATE_SYSCALL(share_buffer_with) \
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__ENUMERATE_SYSCALL(get_shared_buffer) \
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__ENUMERATE_SYSCALL(release_shared_buffer) \
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__ENUMERATE_SYSCALL(link) \
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__ENUMERATE_SYSCALL(chown) \
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__ENUMERATE_SYSCALL(fchmod) \
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__ENUMERATE_SYSCALL(symlink) \
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__ENUMERATE_SYSCALL(get_shared_buffer_size) \
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__ENUMERATE_SYSCALL(seal_shared_buffer) \
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__ENUMERATE_SYSCALL(sendto) \
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__ENUMERATE_SYSCALL(recvfrom) \
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__ENUMERATE_SYSCALL(getsockopt) \
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__ENUMERATE_SYSCALL(setsockopt) \
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__ENUMERATE_SYSCALL(create_thread) \
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__ENUMERATE_SYSCALL(gettid) \
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__ENUMERATE_SYSCALL(donate) \
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__ENUMERATE_SYSCALL(rename) \
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__ENUMERATE_SYSCALL(ftruncate) \
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__ENUMERATE_SYSCALL(systrace) \
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__ENUMERATE_SYSCALL(exit_thread) \
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__ENUMERATE_SYSCALL(mknod) \
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__ENUMERATE_SYSCALL(writev) \
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__ENUMERATE_SYSCALL(beep) \
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__ENUMERATE_SYSCALL(getsockname) \
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__ENUMERATE_SYSCALL(getpeername) \
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__ENUMERATE_SYSCALL(sched_setparam) \
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__ENUMERATE_SYSCALL(sched_getparam) \
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__ENUMERATE_SYSCALL(fchown) \
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__ENUMERATE_SYSCALL(halt) \
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__ENUMERATE_SYSCALL(reboot) \
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__ENUMERATE_SYSCALL(mount) \
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__ENUMERATE_SYSCALL(umount) \
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__ENUMERATE_SYSCALL(dump_backtrace) \
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__ENUMERATE_SYSCALL(dbgputch) \
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__ENUMERATE_SYSCALL(dbgputstr) \
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__ENUMERATE_SYSCALL(watch_file) \
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__ENUMERATE_SYSCALL(share_buffer_globally) \
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__ENUMERATE_SYSCALL(set_process_icon) \
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__ENUMERATE_SYSCALL(mprotect) \
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__ENUMERATE_SYSCALL(realpath) \
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__ENUMERATE_SYSCALL(get_process_name) \
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__ENUMERATE_SYSCALL(fchdir) \
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__ENUMERATE_SYSCALL(getrandom) \
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__ENUMERATE_SYSCALL(setkeymap) \
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__ENUMERATE_SYSCALL(clock_gettime) \
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__ENUMERATE_SYSCALL(clock_nanosleep) \
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__ENUMERATE_SYSCALL(join_thread) \
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__ENUMERATE_SYSCALL(module_load) \
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__ENUMERATE_SYSCALL(module_unload) \
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__ENUMERATE_SYSCALL(detach_thread) \
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__ENUMERATE_SYSCALL(set_thread_name) \
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__ENUMERATE_SYSCALL(get_thread_name) \
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__ENUMERATE_SYSCALL(madvise) \
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__ENUMERATE_SYSCALL(purge) \
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__ENUMERATE_SYSCALL(set_shared_buffer_volatile) \
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__ENUMERATE_SYSCALL(profiling_enable) \
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__ENUMERATE_SYSCALL(profiling_disable) \
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__ENUMERATE_SYSCALL(get_kernel_info_page) \
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__ENUMERATE_SYSCALL(futex) \
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__ENUMERATE_SYSCALL(set_thread_boost) \
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__ENUMERATE_SYSCALL(set_process_boost) \
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__ENUMERATE_SYSCALL(chroot) \
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__ENUMERATE_SYSCALL(pledge) \
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__ENUMERATE_SYSCALL(unveil) \
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__ENUMERATE_SYSCALL(perf_event) \
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__ENUMERATE_SYSCALL(shutdown)
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namespace Syscall {
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enum Function {
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#undef __ENUMERATE_SYSCALL
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#undef __ENUMERATE_REMOVED_SYSCALL
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#define __ENUMERATE_REMOVED_SYSCALL(x) SC_##x,
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#define __ENUMERATE_SYSCALL(x) SC_##x,
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ENUMERATE_SYSCALLS
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#undef __ENUMERATE_SYSCALL
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#undef __ENUMERATE_REMOVED_SYSCALL
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__Count
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};
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inline constexpr const char* to_string(Function function)
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{
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switch (function) {
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#undef __ENUMERATE_SYSCALL
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#undef __ENUMERATE_REMOVED_SYSCALL
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#define __ENUMERATE_REMOVED_SYSCALL(x) \
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case SC_##x: \
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return #x " (removed)";
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#define __ENUMERATE_SYSCALL(x) \
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case SC_##x: \
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return #x;
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ENUMERATE_SYSCALLS
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#undef __ENUMERATE_SYSCALL
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#undef __ENUMERATE_REMOVED_SYSCALL
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default:
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break;
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}
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return "Unknown";
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}
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#ifdef __serenity__
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struct StringArgument {
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const char* characters { nullptr };
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size_t length { 0 };
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};
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template<typename DataType, typename SizeType>
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struct MutableBufferArgument {
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DataType* data { nullptr };
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SizeType size { 0 };
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};
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template<typename DataType, typename SizeType>
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struct ImmutableBufferArgument {
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const DataType* data { nullptr };
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SizeType size { 0 };
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};
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struct StringListArgument {
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StringArgument* strings { nullptr };
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size_t length { 0 };
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};
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struct SC_mmap_params {
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uint32_t addr;
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uint32_t size;
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int32_t prot;
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int32_t flags;
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int32_t fd;
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int32_t offset; // FIXME: 64-bit off_t?
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StringArgument name;
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};
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struct SC_open_params {
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int dirfd;
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StringArgument path;
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int options;
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u16 mode;
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};
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struct SC_select_params {
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int nfds;
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fd_set* readfds;
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fd_set* writefds;
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fd_set* exceptfds;
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struct timeval* timeout;
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};
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struct SC_clock_nanosleep_params {
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int clock_id;
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int flags;
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const struct timespec* requested_sleep;
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struct timespec* remaining_sleep;
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};
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struct SC_sendto_params {
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int sockfd;
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ImmutableBufferArgument<void, size_t> data;
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int flags;
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const sockaddr* addr;
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socklen_t addr_length;
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};
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struct SC_recvfrom_params {
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int sockfd;
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MutableBufferArgument<void, size_t> buffer;
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int flags;
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sockaddr* addr;
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socklen_t* addr_length;
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};
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struct SC_getsockopt_params {
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int sockfd;
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int level;
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int option;
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void* value;
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socklen_t* value_size;
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};
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struct SC_setsockopt_params {
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int sockfd;
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int level;
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int option;
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const void* value;
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socklen_t value_size;
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};
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struct SC_getsockname_params {
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int sockfd;
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sockaddr* addr;
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socklen_t* addrlen;
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};
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struct SC_getpeername_params {
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int sockfd;
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sockaddr* addr;
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socklen_t* addrlen;
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};
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struct SC_futex_params {
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i32* userspace_address;
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int futex_op;
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i32 val;
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const timespec* timeout;
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};
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struct SC_setkeymap_params {
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const char* map;
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const char* shift_map;
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const char* alt_map;
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const char* altgr_map;
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};
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struct SC_create_thread_params {
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unsigned int m_detach_state = 0; // JOINABLE or DETACHED
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int m_schedule_priority = 30; // THREAD_PRIORITY_NORMAL
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// FIXME: Implment guard pages in create_thread (unreadable pages at "overflow" end of stack)
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// "If an implementation rounds up the value of guardsize to a multiple of {PAGESIZE},
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// a call to pthread_attr_getguardsize() specifying attr shall store in the guardsize
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// parameter the guard size specified by the previous pthread_attr_setguardsize() function call"
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// ... ok, if you say so posix. Guess we get to lie to people about guard page size
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unsigned int m_guard_page_size = 0; // Rounded up to PAGE_SIZE
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unsigned int m_reported_guard_page_size = 0; // The lie we tell callers
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unsigned int m_stack_size = 4 * MB; // Default PTHREAD_STACK_MIN
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void* m_stack_location = nullptr; // nullptr means any, o.w. process virtual address
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};
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struct SC_realpath_params {
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StringArgument path;
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MutableBufferArgument<char, size_t> buffer;
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};
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struct SC_set_mmap_name_params {
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void* addr;
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size_t size;
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StringArgument name;
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};
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struct SC_execve_params {
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StringArgument path;
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StringListArgument arguments;
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StringListArgument environment;
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};
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struct SC_readlink_params {
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StringArgument path;
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MutableBufferArgument<char, size_t> buffer;
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};
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struct SC_link_params {
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StringArgument old_path;
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StringArgument new_path;
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};
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struct SC_chown_params {
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StringArgument path;
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u32 uid;
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u32 gid;
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};
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struct SC_mknod_params {
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StringArgument path;
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u16 mode;
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u32 dev;
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};
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struct SC_symlink_params {
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StringArgument target;
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StringArgument linkpath;
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};
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struct SC_rename_params {
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StringArgument old_path;
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StringArgument new_path;
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};
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struct SC_mount_params {
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StringArgument source;
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StringArgument target;
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StringArgument fs_type;
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int flags;
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};
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struct SC_pledge_params {
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StringArgument promises;
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StringArgument execpromises;
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};
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struct SC_unveil_params {
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StringArgument path;
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StringArgument permissions;
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};
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struct SC_waitid_params {
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int idtype;
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int id;
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struct siginfo* infop;
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int options;
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};
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void initialize();
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int sync();
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inline u32 invoke(Function function)
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{
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u32 result;
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asm volatile("int $0x82"
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: "=a"(result)
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: "a"(function)
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: "memory");
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return result;
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}
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template<typename T1>
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inline u32 invoke(Function function, T1 arg1)
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{
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u32 result;
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asm volatile("int $0x82"
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: "=a"(result)
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: "a"(function), "d"((u32)arg1)
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: "memory");
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return result;
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}
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template<typename T1, typename T2>
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inline u32 invoke(Function function, T1 arg1, T2 arg2)
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{
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u32 result;
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asm volatile("int $0x82"
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: "=a"(result)
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: "a"(function), "d"((u32)arg1), "c"((u32)arg2)
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: "memory");
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return result;
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}
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template<typename T1, typename T2, typename T3>
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inline u32 invoke(Function function, T1 arg1, T2 arg2, T3 arg3)
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{
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u32 result;
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asm volatile("int $0x82"
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: "=a"(result)
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: "a"(function), "d"((u32)arg1), "c"((u32)arg2), "b"((u32)arg3)
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: "memory");
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return result;
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}
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#endif
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}
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#undef __ENUMERATE_SYSCALL
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#define __ENUMERATE_SYSCALL(x) using Syscall::SC_##x;
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#define __ENUMERATE_REMOVED_SYSCALL(x)
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ENUMERATE_SYSCALLS
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#undef __ENUMERATE_SYSCALL
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#undef __ENUMERATE_REMOVED_SYSCALL
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#define syscall Syscall::invoke
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