mirror of
https://github.com/SerenityOS/serenity
synced 2024-10-08 00:50:32 +00:00
401c87a0cc
It is now possible to mount ext2 `DiskDevice` devices under Serenity on any folder in the root filesystem. Currently any user can do this with any permissions. There's a fair amount of assumptions made here too, that might not be too good, but can be worked on in the future. This is a good start to allow more dynamic operation under the OS itself. It is also currently impossible to unmount and such, and devices will fail to mount in Linux as the FS 'needs to be cleaned'. I'll work on getting `umount` done ASAP to rectify this (as well as working on less assumption-making in the mount syscall. We don't want to just be able to mount DiskDevices!). This could probably be fixed with some `-t` flag or something similar.
263 lines
8.5 KiB
C++
263 lines
8.5 KiB
C++
#pragma once
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#include <AK/Types.h>
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#include <LibC/fd_set.h>
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extern "C" {
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struct timeval;
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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(putch) \
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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(waitpid) \
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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(isatty) \
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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(read_tsc) \
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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(restore_signal_mask) \
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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(shm_open) \
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__ENUMERATE_SYSCALL(shm_close) \
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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(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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namespace Syscall {
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enum Function {
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#undef __ENUMERATE_SYSCALL
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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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};
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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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#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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}
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return "Unknown";
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}
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#ifdef __serenity__
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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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const char* name { nullptr };
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};
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struct SC_open_params {
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const char* path;
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int path_length;
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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_sendto_params {
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int sockfd;
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const void* data;
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size_t data_length;
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int flags;
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const void* addr; // const sockaddr*
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size_t addr_length; // socklen_t
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};
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struct SC_recvfrom_params {
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int sockfd;
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void* buffer;
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size_t buffer_length;
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int flags;
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void* addr; // sockaddr*
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void* addr_length; // socklen_t*
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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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void* value_size; // socklen_t*
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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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size_t value_size; // socklen_t
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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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ENUMERATE_SYSCALLS
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#undef __ENUMERATE_SYSCALL
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#define syscall Syscall::invoke
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