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- /*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- #pragma once
- #include <AK/Types.h>
- #ifdef __serenity__
- # include <LibC/fd_set.h>
- #endif
- constexpr int syscall_vector = 0x82;
- extern "C" {
- struct pollfd;
- struct timeval;
- struct timespec;
- struct sockaddr;
- struct siginfo;
- typedef u32 socklen_t;
- }
- namespace Kernel {
- #define ENUMERATE_SYSCALLS \
- __ENUMERATE_SYSCALL(sleep) \
- __ENUMERATE_SYSCALL(yield) \
- __ENUMERATE_SYSCALL(open) \
- __ENUMERATE_SYSCALL(close) \
- __ENUMERATE_SYSCALL(read) \
- __ENUMERATE_SYSCALL(lseek) \
- __ENUMERATE_SYSCALL(kill) \
- __ENUMERATE_SYSCALL(getuid) \
- __ENUMERATE_SYSCALL(exit) \
- __ENUMERATE_SYSCALL(geteuid) \
- __ENUMERATE_SYSCALL(getegid) \
- __ENUMERATE_SYSCALL(getgid) \
- __ENUMERATE_SYSCALL(getpid) \
- __ENUMERATE_SYSCALL(getppid) \
- __ENUMERATE_SYSCALL(getresuid) \
- __ENUMERATE_SYSCALL(getresgid) \
- __ENUMERATE_SYSCALL(waitid) \
- __ENUMERATE_SYSCALL(mmap) \
- __ENUMERATE_SYSCALL(munmap) \
- __ENUMERATE_SYSCALL(get_dir_entries) \
- __ENUMERATE_SYSCALL(getcwd) \
- __ENUMERATE_SYSCALL(gettimeofday) \
- __ENUMERATE_SYSCALL(gethostname) \
- __ENUMERATE_SYSCALL(sethostname) \
- __ENUMERATE_SYSCALL(chdir) \
- __ENUMERATE_SYSCALL(uname) \
- __ENUMERATE_SYSCALL(set_mmap_name) \
- __ENUMERATE_SYSCALL(readlink) \
- __ENUMERATE_SYSCALL(write) \
- __ENUMERATE_SYSCALL(ttyname_r) \
- __ENUMERATE_SYSCALL(stat) \
- __ENUMERATE_SYSCALL(getsid) \
- __ENUMERATE_SYSCALL(setsid) \
- __ENUMERATE_SYSCALL(getpgid) \
- __ENUMERATE_SYSCALL(setpgid) \
- __ENUMERATE_SYSCALL(getpgrp) \
- __ENUMERATE_SYSCALL(fork) \
- __ENUMERATE_SYSCALL(execve) \
- __ENUMERATE_SYSCALL(dup) \
- __ENUMERATE_SYSCALL(dup2) \
- __ENUMERATE_SYSCALL(sigaction) \
- __ENUMERATE_SYSCALL(umask) \
- __ENUMERATE_SYSCALL(getgroups) \
- __ENUMERATE_SYSCALL(setgroups) \
- __ENUMERATE_SYSCALL(sigreturn) \
- __ENUMERATE_SYSCALL(sigprocmask) \
- __ENUMERATE_SYSCALL(sigpending) \
- __ENUMERATE_SYSCALL(pipe) \
- __ENUMERATE_SYSCALL(killpg) \
- __ENUMERATE_SYSCALL(seteuid) \
- __ENUMERATE_SYSCALL(setegid) \
- __ENUMERATE_SYSCALL(setuid) \
- __ENUMERATE_SYSCALL(setgid) \
- __ENUMERATE_SYSCALL(setresuid) \
- __ENUMERATE_SYSCALL(setresgid) \
- __ENUMERATE_SYSCALL(alarm) \
- __ENUMERATE_SYSCALL(fstat) \
- __ENUMERATE_SYSCALL(access) \
- __ENUMERATE_SYSCALL(fcntl) \
- __ENUMERATE_SYSCALL(ioctl) \
- __ENUMERATE_SYSCALL(mkdir) \
- __ENUMERATE_SYSCALL(times) \
- __ENUMERATE_SYSCALL(utime) \
- __ENUMERATE_SYSCALL(sync) \
- __ENUMERATE_SYSCALL(ptsname_r) \
- __ENUMERATE_SYSCALL(select) \
- __ENUMERATE_SYSCALL(unlink) \
- __ENUMERATE_SYSCALL(poll) \
- __ENUMERATE_SYSCALL(rmdir) \
- __ENUMERATE_SYSCALL(chmod) \
- __ENUMERATE_SYSCALL(usleep) \
- __ENUMERATE_SYSCALL(socket) \
- __ENUMERATE_SYSCALL(bind) \
- __ENUMERATE_SYSCALL(accept) \
- __ENUMERATE_SYSCALL(listen) \
- __ENUMERATE_SYSCALL(connect) \
- __ENUMERATE_SYSCALL(shbuf_create) \
- __ENUMERATE_SYSCALL(shbuf_allow_pid) \
- __ENUMERATE_SYSCALL(shbuf_get) \
- __ENUMERATE_SYSCALL(shbuf_release) \
- __ENUMERATE_SYSCALL(link) \
- __ENUMERATE_SYSCALL(chown) \
- __ENUMERATE_SYSCALL(fchmod) \
- __ENUMERATE_SYSCALL(symlink) \
- __ENUMERATE_SYSCALL(shbuf_seal) \
- __ENUMERATE_SYSCALL(sendto) \
- __ENUMERATE_SYSCALL(recvfrom) \
- __ENUMERATE_SYSCALL(getsockopt) \
- __ENUMERATE_SYSCALL(setsockopt) \
- __ENUMERATE_SYSCALL(create_thread) \
- __ENUMERATE_SYSCALL(gettid) \
- __ENUMERATE_SYSCALL(donate) \
- __ENUMERATE_SYSCALL(rename) \
- __ENUMERATE_SYSCALL(ftruncate) \
- __ENUMERATE_SYSCALL(exit_thread) \
- __ENUMERATE_SYSCALL(mknod) \
- __ENUMERATE_SYSCALL(writev) \
- __ENUMERATE_SYSCALL(beep) \
- __ENUMERATE_SYSCALL(getsockname) \
- __ENUMERATE_SYSCALL(getpeername) \
- __ENUMERATE_SYSCALL(sched_setparam) \
- __ENUMERATE_SYSCALL(sched_getparam) \
- __ENUMERATE_SYSCALL(fchown) \
- __ENUMERATE_SYSCALL(halt) \
- __ENUMERATE_SYSCALL(reboot) \
- __ENUMERATE_SYSCALL(mount) \
- __ENUMERATE_SYSCALL(umount) \
- __ENUMERATE_SYSCALL(dump_backtrace) \
- __ENUMERATE_SYSCALL(dbgputch) \
- __ENUMERATE_SYSCALL(dbgputstr) \
- __ENUMERATE_SYSCALL(watch_file) \
- __ENUMERATE_SYSCALL(shbuf_allow_all) \
- __ENUMERATE_SYSCALL(set_process_icon) \
- __ENUMERATE_SYSCALL(mprotect) \
- __ENUMERATE_SYSCALL(realpath) \
- __ENUMERATE_SYSCALL(get_process_name) \
- __ENUMERATE_SYSCALL(fchdir) \
- __ENUMERATE_SYSCALL(getrandom) \
- __ENUMERATE_SYSCALL(setkeymap) \
- __ENUMERATE_SYSCALL(clock_gettime) \
- __ENUMERATE_SYSCALL(clock_settime) \
- __ENUMERATE_SYSCALL(clock_nanosleep) \
- __ENUMERATE_SYSCALL(join_thread) \
- __ENUMERATE_SYSCALL(module_load) \
- __ENUMERATE_SYSCALL(module_unload) \
- __ENUMERATE_SYSCALL(detach_thread) \
- __ENUMERATE_SYSCALL(set_thread_name) \
- __ENUMERATE_SYSCALL(get_thread_name) \
- __ENUMERATE_SYSCALL(madvise) \
- __ENUMERATE_SYSCALL(purge) \
- __ENUMERATE_SYSCALL(shbuf_set_volatile) \
- __ENUMERATE_SYSCALL(profiling_enable) \
- __ENUMERATE_SYSCALL(profiling_disable) \
- __ENUMERATE_SYSCALL(futex) \
- __ENUMERATE_SYSCALL(set_thread_boost) \
- __ENUMERATE_SYSCALL(set_process_boost) \
- __ENUMERATE_SYSCALL(chroot) \
- __ENUMERATE_SYSCALL(pledge) \
- __ENUMERATE_SYSCALL(unveil) \
- __ENUMERATE_SYSCALL(perf_event) \
- __ENUMERATE_SYSCALL(shutdown) \
- __ENUMERATE_SYSCALL(get_stack_bounds) \
- __ENUMERATE_SYSCALL(ptrace) \
- __ENUMERATE_SYSCALL(minherit) \
- __ENUMERATE_SYSCALL(sendfd) \
- __ENUMERATE_SYSCALL(recvfd) \
- __ENUMERATE_SYSCALL(sysconf) \
- __ENUMERATE_SYSCALL(set_process_name)
- namespace Syscall {
- enum Function {
- #undef __ENUMERATE_SYSCALL
- #undef __ENUMERATE_REMOVED_SYSCALL
- #define __ENUMERATE_REMOVED_SYSCALL(x) SC_##x,
- #define __ENUMERATE_SYSCALL(x) SC_##x,
- ENUMERATE_SYSCALLS
- #undef __ENUMERATE_SYSCALL
- #undef __ENUMERATE_REMOVED_SYSCALL
- __Count
- };
- inline constexpr const char* to_string(Function function)
- {
- switch (function) {
- #undef __ENUMERATE_SYSCALL
- #undef __ENUMERATE_REMOVED_SYSCALL
- #define __ENUMERATE_REMOVED_SYSCALL(x) \
- case SC_##x: \
- return #x " (removed)";
- #define __ENUMERATE_SYSCALL(x) \
- case SC_##x: \
- return #x;
- ENUMERATE_SYSCALLS
- #undef __ENUMERATE_SYSCALL
- #undef __ENUMERATE_REMOVED_SYSCALL
- default:
- break;
- }
- return "Unknown";
- }
- #ifdef __serenity__
- struct StringArgument {
- const char* characters { nullptr };
- size_t length { 0 };
- };
- template<typename DataType, typename SizeType>
- struct MutableBufferArgument {
- DataType* data { nullptr };
- SizeType size { 0 };
- };
- template<typename DataType, typename SizeType>
- struct ImmutableBufferArgument {
- const DataType* data { nullptr };
- SizeType size { 0 };
- };
- struct StringListArgument {
- StringArgument* strings { nullptr };
- size_t length { 0 };
- };
- struct SC_mmap_params {
- uint32_t addr;
- uint32_t size;
- uint32_t alignment;
- int32_t prot;
- int32_t flags;
- int32_t fd;
- int32_t offset; // FIXME: 64-bit off_t?
- StringArgument name;
- };
- struct SC_open_params {
- int dirfd;
- StringArgument path;
- int options;
- u16 mode;
- };
- struct SC_select_params {
- int nfds;
- fd_set* readfds;
- fd_set* writefds;
- fd_set* exceptfds;
- const struct timespec* timeout;
- const u32* sigmask;
- };
- struct SC_poll_params {
- struct pollfd* fds;
- unsigned nfds;
- const struct timespec* timeout;
- const u32* sigmask;
- };
- struct SC_clock_nanosleep_params {
- int clock_id;
- int flags;
- const struct timespec* requested_sleep;
- struct timespec* remaining_sleep;
- };
- struct SC_sendto_params {
- int sockfd;
- ImmutableBufferArgument<void, size_t> data;
- int flags;
- const sockaddr* addr;
- socklen_t addr_length;
- };
- struct SC_recvfrom_params {
- int sockfd;
- MutableBufferArgument<void, size_t> buffer;
- int flags;
- sockaddr* addr;
- socklen_t* addr_length;
- };
- struct SC_getsockopt_params {
- int sockfd;
- int level;
- int option;
- void* value;
- socklen_t* value_size;
- };
- struct SC_setsockopt_params {
- int sockfd;
- int level;
- int option;
- const void* value;
- socklen_t value_size;
- };
- struct SC_getsockname_params {
- int sockfd;
- sockaddr* addr;
- socklen_t* addrlen;
- };
- struct SC_getpeername_params {
- int sockfd;
- sockaddr* addr;
- socklen_t* addrlen;
- };
- struct SC_futex_params {
- i32* userspace_address;
- int futex_op;
- i32 val;
- const timespec* timeout;
- };
- struct SC_setkeymap_params {
- const u32* map;
- const u32* shift_map;
- const u32* alt_map;
- const u32* altgr_map;
- };
- struct SC_create_thread_params {
- unsigned int m_detach_state = 0; // JOINABLE or DETACHED
- int m_schedule_priority = 30; // THREAD_PRIORITY_NORMAL
- // FIXME: Implment guard pages in create_thread (unreadable pages at "overflow" end of stack)
- // "If an implementation rounds up the value of guardsize to a multiple of {PAGESIZE},
- // a call to pthread_attr_getguardsize() specifying attr shall store in the guardsize
- // parameter the guard size specified by the previous pthread_attr_setguardsize() function call"
- // ... ok, if you say so posix. Guess we get to lie to people about guard page size
- unsigned int m_guard_page_size = 0; // Rounded up to PAGE_SIZE
- unsigned int m_reported_guard_page_size = 0; // The lie we tell callers
- unsigned int m_stack_size = 4 * MB; // Default PTHREAD_STACK_MIN
- void* m_stack_location = nullptr; // nullptr means any, o.w. process virtual address
- };
- struct SC_realpath_params {
- StringArgument path;
- MutableBufferArgument<char, size_t> buffer;
- };
- struct SC_set_mmap_name_params {
- void* addr;
- size_t size;
- StringArgument name;
- };
- struct SC_execve_params {
- StringArgument path;
- StringListArgument arguments;
- StringListArgument environment;
- };
- struct SC_readlink_params {
- StringArgument path;
- MutableBufferArgument<char, size_t> buffer;
- };
- struct SC_link_params {
- StringArgument old_path;
- StringArgument new_path;
- };
- struct SC_chown_params {
- StringArgument path;
- u32 uid;
- u32 gid;
- };
- struct SC_mknod_params {
- StringArgument path;
- u16 mode;
- u32 dev;
- };
- struct SC_symlink_params {
- StringArgument target;
- StringArgument linkpath;
- };
- struct SC_rename_params {
- StringArgument old_path;
- StringArgument new_path;
- };
- struct SC_mount_params {
- int source_fd;
- StringArgument target;
- StringArgument fs_type;
- int flags;
- };
- struct SC_pledge_params {
- StringArgument promises;
- StringArgument execpromises;
- };
- struct SC_unveil_params {
- StringArgument path;
- StringArgument permissions;
- };
- struct SC_waitid_params {
- int idtype;
- int id;
- struct siginfo* infop;
- int options;
- };
- struct SC_stat_params {
- StringArgument path;
- struct stat* statbuf;
- bool follow_symlinks;
- };
- struct SC_ptrace_params {
- int request;
- pid_t pid;
- u8* addr;
- int data;
- };
- struct SC_ptrace_peek_params {
- u32* address;
- u32* out_data;
- };
- void initialize();
- int sync();
- inline u32 invoke(Function function)
- {
- u32 result;
- asm volatile("int $0x82"
- : "=a"(result)
- : "a"(function)
- : "memory");
- return result;
- }
- template<typename T1>
- inline u32 invoke(Function function, T1 arg1)
- {
- u32 result;
- asm volatile("int $0x82"
- : "=a"(result)
- : "a"(function), "d"((u32)arg1)
- : "memory");
- return result;
- }
- template<typename T1, typename T2>
- inline u32 invoke(Function function, T1 arg1, T2 arg2)
- {
- u32 result;
- asm volatile("int $0x82"
- : "=a"(result)
- : "a"(function), "d"((u32)arg1), "c"((u32)arg2)
- : "memory");
- return result;
- }
- template<typename T1, typename T2, typename T3>
- inline u32 invoke(Function function, T1 arg1, T2 arg2, T3 arg3)
- {
- u32 result;
- asm volatile("int $0x82"
- : "=a"(result)
- : "a"(function), "d"((u32)arg1), "c"((u32)arg2), "b"((u32)arg3)
- : "memory");
- return result;
- }
- #endif
- }
- #undef __ENUMERATE_SYSCALL
- #define __ENUMERATE_SYSCALL(x) using Syscall::SC_##x;
- #define __ENUMERATE_REMOVED_SYSCALL(x)
- ENUMERATE_SYSCALLS
- #undef __ENUMERATE_SYSCALL
- #undef __ENUMERATE_REMOVED_SYSCALL
- #define syscall Syscall::invoke
- }
- using namespace Kernel;
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