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zig/lib/std/os/linux.zig
Andrew Kelley a78e61acf9 std: expose rusage constants under rusage namespace
2021-11-01 15:55:22 -07:00

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//! This file provides the system interface functions for Linux matching those
//! that are provided by libc, whether or not libc is linked. The following
//! abstractions are made:
//! * Work around kernel bugs and limitations. For example, see sendmmsg.
//! * Implement all the syscalls in the same way that libc functions will
//! provide `rename` when only the `renameat` syscall exists.
//! * Does not support POSIX thread cancellation.
const std = @import("../std.zig");
const builtin = @import("builtin");
const assert = std.debug.assert;
const maxInt = std.math.maxInt;
const elf = std.elf;
const vdso = @import("linux/vdso.zig");
const dl = @import("../dynamic_library.zig");
const native_arch = builtin.cpu.arch;
const native_endian = native_arch.endian();
const is_mips = native_arch.isMIPS();
const is_ppc = native_arch.isPPC();
const is_ppc64 = native_arch.isPPC64();
const is_sparc = native_arch.isSPARC();
const iovec = std.os.iovec;
const iovec_const = std.os.iovec_const;
test {
if (builtin.os.tag == .linux) {
_ = @import("linux/test.zig");
}
}
const syscall_bits = switch (native_arch) {
.thumb => @import("linux/thumb.zig"),
else => arch_bits,
};
const arch_bits = switch (native_arch) {
.i386 => @import("linux/i386.zig"),
.x86_64 => @import("linux/x86_64.zig"),
.aarch64 => @import("linux/arm64.zig"),
.arm, .thumb => @import("linux/arm-eabi.zig"),
.riscv64 => @import("linux/riscv64.zig"),
.sparcv9 => @import("linux/sparc64.zig"),
.mips, .mipsel => @import("linux/mips.zig"),
.powerpc => @import("linux/powerpc.zig"),
.powerpc64, .powerpc64le => @import("linux/powerpc64.zig"),
else => struct {},
};
pub const syscall0 = syscall_bits.syscall0;
pub const syscall1 = syscall_bits.syscall1;
pub const syscall2 = syscall_bits.syscall2;
pub const syscall3 = syscall_bits.syscall3;
pub const syscall4 = syscall_bits.syscall4;
pub const syscall5 = syscall_bits.syscall5;
pub const syscall6 = syscall_bits.syscall6;
pub const syscall7 = syscall_bits.syscall7;
pub const restore = syscall_bits.restore;
pub const restore_rt = syscall_bits.restore_rt;
pub const socketcall = syscall_bits.socketcall;
pub const syscall_pipe = syscall_bits.syscall_pipe;
pub const syscall_fork = syscall_bits.syscall_fork;
pub const ARCH = arch_bits.ARCH;
pub const Elf_Symndx = arch_bits.Elf_Symndx;
pub const F = arch_bits.F;
pub const Flock = arch_bits.Flock;
pub const HWCAP = arch_bits.HWCAP;
pub const LOCK = arch_bits.LOCK;
pub const MMAP2_UNIT = arch_bits.MMAP2_UNIT;
pub const REG = arch_bits.REG;
pub const SC = arch_bits.SC;
pub const SYS = arch_bits.SYS;
pub const Stat = arch_bits.Stat;
pub const VDSO = arch_bits.VDSO;
pub const blkcnt_t = arch_bits.blkcnt_t;
pub const blksize_t = arch_bits.blksize_t;
pub const clone = arch_bits.clone;
pub const dev_t = arch_bits.dev_t;
pub const ino_t = arch_bits.ino_t;
pub const mcontext_t = arch_bits.mcontext_t;
pub const mode_t = arch_bits.mode_t;
pub const msghdr = arch_bits.msghdr;
pub const msghdr_const = arch_bits.msghdr_const;
pub const nlink_t = arch_bits.nlink_t;
pub const off_t = arch_bits.off_t;
pub const time_t = arch_bits.time_t;
pub const timeval = arch_bits.timeval;
pub const timezone = arch_bits.timezone;
pub const ucontext_t = arch_bits.ucontext_t;
pub const user_desc = arch_bits.user_desc;
pub const tls = @import("linux/tls.zig");
pub const pie = @import("linux/start_pie.zig");
pub const BPF = @import("linux/bpf.zig");
pub const IOCTL = @import("linux/ioctl.zig");
pub const MAP = struct {
pub usingnamespace arch_bits.MAP;
/// Share changes
pub const SHARED = 0x01;
/// Changes are private
pub const PRIVATE = 0x02;
/// share + validate extension flags
pub const SHARED_VALIDATE = 0x03;
/// Mask for type of mapping
pub const TYPE = 0x0f;
/// Interpret addr exactly
pub const FIXED = 0x10;
/// don't use a file
pub const ANONYMOUS = if (is_mips) 0x800 else 0x20;
// MAP_ 0x0100 - 0x4000 flags are per architecture
/// populate (prefault) pagetables
pub const POPULATE = if (is_mips) 0x10000 else 0x8000;
/// do not block on IO
pub const NONBLOCK = if (is_mips) 0x20000 else 0x10000;
/// give out an address that is best suited for process/thread stacks
pub const STACK = if (is_mips) 0x40000 else 0x20000;
/// create a huge page mapping
pub const HUGETLB = if (is_mips) 0x80000 else 0x40000;
/// perform synchronous page faults for the mapping
pub const SYNC = 0x80000;
/// MAP_FIXED which doesn't unmap underlying mapping
pub const FIXED_NOREPLACE = 0x100000;
/// For anonymous mmap, memory could be uninitialized
pub const UNINITIALIZED = 0x4000000;
};
pub const O = struct {
pub usingnamespace arch_bits.O;
pub const RDONLY = 0o0;
pub const WRONLY = 0o1;
pub const RDWR = 0o2;
};
pub usingnamespace @import("linux/io_uring.zig");
/// Set by startup code, used by `getauxval`.
pub var elf_aux_maybe: ?[*]std.elf.Auxv = null;
/// See `std.elf` for the constants.
pub fn getauxval(index: usize) usize {
const auxv = elf_aux_maybe orelse return 0;
var i: usize = 0;
while (auxv[i].a_type != std.elf.AT_NULL) : (i += 1) {
if (auxv[i].a_type == index)
return auxv[i].a_un.a_val;
}
return 0;
}
// Some architectures (and some syscalls) require 64bit parameters to be passed
// in a even-aligned register pair.
const require_aligned_register_pair =
builtin.cpu.arch.isPPC() or
builtin.cpu.arch.isMIPS() or
builtin.cpu.arch.isARM() or
builtin.cpu.arch.isThumb();
// Split a 64bit value into a {LSB,MSB} pair.
// The LE/BE variants specify the endianness to assume.
fn splitValueLE64(val: i64) [2]u32 {
const u = @bitCast(u64, val);
return [2]u32{
@truncate(u32, u),
@truncate(u32, u >> 32),
};
}
fn splitValueBE64(val: i64) [2]u32 {
const u = @bitCast(u64, val);
return [2]u32{
@truncate(u32, u >> 32),
@truncate(u32, u),
};
}
fn splitValue64(val: i64) [2]u32 {
const u = @bitCast(u64, val);
switch (native_endian) {
.Little => return [2]u32{
@truncate(u32, u),
@truncate(u32, u >> 32),
},
.Big => return [2]u32{
@truncate(u32, u >> 32),
@truncate(u32, u),
},
}
}
/// Get the errno from a syscall return value, or 0 for no error.
pub fn getErrno(r: usize) E {
const signed_r = @bitCast(isize, r);
const int = if (signed_r > -4096 and signed_r < 0) -signed_r else 0;
return @intToEnum(E, int);
}
pub fn dup(old: i32) usize {
return syscall1(.dup, @bitCast(usize, @as(isize, old)));
}
pub fn dup2(old: i32, new: i32) usize {
if (@hasField(SYS, "dup2")) {
return syscall2(.dup2, @bitCast(usize, @as(isize, old)), @bitCast(usize, @as(isize, new)));
} else {
if (old == new) {
if (std.debug.runtime_safety) {
const rc = syscall2(.fcntl, @bitCast(usize, @as(isize, old)), F.GETFD);
if (@bitCast(isize, rc) < 0) return rc;
}
return @intCast(usize, old);
} else {
return syscall3(.dup3, @bitCast(usize, @as(isize, old)), @bitCast(usize, @as(isize, new)), 0);
}
}
}
pub fn dup3(old: i32, new: i32, flags: u32) usize {
return syscall3(.dup3, @bitCast(usize, @as(isize, old)), @bitCast(usize, @as(isize, new)), flags);
}
pub fn chdir(path: [*:0]const u8) usize {
return syscall1(.chdir, @ptrToInt(path));
}
pub fn fchdir(fd: fd_t) usize {
return syscall1(.fchdir, @bitCast(usize, @as(isize, fd)));
}
pub fn chroot(path: [*:0]const u8) usize {
return syscall1(.chroot, @ptrToInt(path));
}
pub fn execve(path: [*:0]const u8, argv: [*:null]const ?[*:0]const u8, envp: [*:null]const ?[*:0]const u8) usize {
return syscall3(.execve, @ptrToInt(path), @ptrToInt(argv), @ptrToInt(envp));
}
pub fn fork() usize {
if (comptime native_arch.isSPARC()) {
return syscall_fork();
} else if (@hasField(SYS, "fork")) {
return syscall0(.fork);
} else {
return syscall2(.clone, SIG.CHLD, 0);
}
}
/// This must be inline, and inline call the syscall function, because if the
/// child does a return it will clobber the parent's stack.
/// It is advised to avoid this function and use clone instead, because
/// the compiler is not aware of how vfork affects control flow and you may
/// see different results in optimized builds.
pub inline fn vfork() usize {
return @call(.{ .modifier = .always_inline }, syscall0, .{.vfork});
}
pub fn futimens(fd: i32, times: *const [2]timespec) usize {
return utimensat(fd, null, times, 0);
}
pub fn utimensat(dirfd: i32, path: ?[*:0]const u8, times: *const [2]timespec, flags: u32) usize {
return syscall4(.utimensat, @bitCast(usize, @as(isize, dirfd)), @ptrToInt(path), @ptrToInt(times), flags);
}
pub fn fallocate(fd: i32, mode: i32, offset: i64, length: i64) usize {
if (usize_bits < 64) {
const offset_halves = splitValue64(offset);
const length_halves = splitValue64(length);
return syscall6(
.fallocate,
@bitCast(usize, @as(isize, fd)),
@bitCast(usize, @as(isize, mode)),
offset_halves[0],
offset_halves[1],
length_halves[0],
length_halves[1],
);
} else {
return syscall4(
.fallocate,
@bitCast(usize, @as(isize, fd)),
@bitCast(usize, @as(isize, mode)),
@bitCast(u64, offset),
@bitCast(u64, length),
);
}
}
pub fn futex_wait(uaddr: *const i32, futex_op: u32, val: i32, timeout: ?*const timespec) usize {
return syscall4(.futex, @ptrToInt(uaddr), futex_op, @bitCast(u32, val), @ptrToInt(timeout));
}
pub fn futex_wake(uaddr: *const i32, futex_op: u32, val: i32) usize {
return syscall3(.futex, @ptrToInt(uaddr), futex_op, @bitCast(u32, val));
}
pub fn getcwd(buf: [*]u8, size: usize) usize {
return syscall2(.getcwd, @ptrToInt(buf), size);
}
pub fn getdents(fd: i32, dirp: [*]u8, len: usize) usize {
return syscall3(
.getdents,
@bitCast(usize, @as(isize, fd)),
@ptrToInt(dirp),
std.math.min(len, maxInt(c_int)),
);
}
pub fn getdents64(fd: i32, dirp: [*]u8, len: usize) usize {
return syscall3(
.getdents64,
@bitCast(usize, @as(isize, fd)),
@ptrToInt(dirp),
std.math.min(len, maxInt(c_int)),
);
}
pub fn inotify_init1(flags: u32) usize {
return syscall1(.inotify_init1, flags);
}
pub fn inotify_add_watch(fd: i32, pathname: [*:0]const u8, mask: u32) usize {
return syscall3(.inotify_add_watch, @bitCast(usize, @as(isize, fd)), @ptrToInt(pathname), mask);
}
pub fn inotify_rm_watch(fd: i32, wd: i32) usize {
return syscall2(.inotify_rm_watch, @bitCast(usize, @as(isize, fd)), @bitCast(usize, @as(isize, wd)));
}
pub fn readlink(noalias path: [*:0]const u8, noalias buf_ptr: [*]u8, buf_len: usize) usize {
if (@hasField(SYS, "readlink")) {
return syscall3(.readlink, @ptrToInt(path), @ptrToInt(buf_ptr), buf_len);
} else {
return syscall4(.readlinkat, @bitCast(usize, @as(isize, AT.FDCWD)), @ptrToInt(path), @ptrToInt(buf_ptr), buf_len);
}
}
pub fn readlinkat(dirfd: i32, noalias path: [*:0]const u8, noalias buf_ptr: [*]u8, buf_len: usize) usize {
return syscall4(.readlinkat, @bitCast(usize, @as(isize, dirfd)), @ptrToInt(path), @ptrToInt(buf_ptr), buf_len);
}
pub fn mkdir(path: [*:0]const u8, mode: u32) usize {
if (@hasField(SYS, "mkdir")) {
return syscall2(.mkdir, @ptrToInt(path), mode);
} else {
return syscall3(.mkdirat, @bitCast(usize, @as(isize, AT.FDCWD)), @ptrToInt(path), mode);
}
}
pub fn mkdirat(dirfd: i32, path: [*:0]const u8, mode: u32) usize {
return syscall3(.mkdirat, @bitCast(usize, @as(isize, dirfd)), @ptrToInt(path), mode);
}
pub fn mknod(path: [*:0]const u8, mode: u32, dev: u32) usize {
if (@hasField(SYS, "mknod")) {
return syscall3(.mknod, @ptrToInt(path), mode, dev);
} else {
return mknodat(AT.FDCWD, path, mode, dev);
}
}
pub fn mknodat(dirfd: i32, path: [*:0]const u8, mode: u32, dev: u32) usize {
return syscall4(.mknodat, @bitCast(usize, @as(isize, dirfd)), @ptrToInt(path), mode, dev);
}
pub fn mount(special: [*:0]const u8, dir: [*:0]const u8, fstype: [*:0]const u8, flags: u32, data: usize) usize {
return syscall5(.mount, @ptrToInt(special), @ptrToInt(dir), @ptrToInt(fstype), flags, data);
}
pub fn umount(special: [*:0]const u8) usize {
return syscall2(.umount2, @ptrToInt(special), 0);
}
pub fn umount2(special: [*:0]const u8, flags: u32) usize {
return syscall2(.umount2, @ptrToInt(special), flags);
}
pub fn mmap(address: ?[*]u8, length: usize, prot: usize, flags: u32, fd: i32, offset: i64) usize {
if (@hasField(SYS, "mmap2")) {
// Make sure the offset is also specified in multiples of page size
if ((offset & (MMAP2_UNIT - 1)) != 0)
return @bitCast(usize, -@as(isize, @enumToInt(E.INVAL)));
return syscall6(
.mmap2,
@ptrToInt(address),
length,
prot,
flags,
@bitCast(usize, @as(isize, fd)),
@truncate(usize, @bitCast(u64, offset) / MMAP2_UNIT),
);
} else {
return syscall6(
.mmap,
@ptrToInt(address),
length,
prot,
flags,
@bitCast(usize, @as(isize, fd)),
@bitCast(u64, offset),
);
}
}
pub fn mprotect(address: [*]const u8, length: usize, protection: usize) usize {
return syscall3(.mprotect, @ptrToInt(address), length, protection);
}
pub fn munmap(address: [*]const u8, length: usize) usize {
return syscall2(.munmap, @ptrToInt(address), length);
}
pub fn poll(fds: [*]pollfd, n: nfds_t, timeout: i32) usize {
if (@hasField(SYS, "poll")) {
return syscall3(.poll, @ptrToInt(fds), n, @bitCast(u32, timeout));
} else {
return syscall5(
.ppoll,
@ptrToInt(fds),
n,
@ptrToInt(if (timeout >= 0)
&timespec{
.tv_sec = @divTrunc(timeout, 1000),
.tv_nsec = @rem(timeout, 1000) * 1000000,
}
else
null),
0,
NSIG / 8,
);
}
}
pub fn ppoll(fds: [*]pollfd, n: nfds_t, timeout: ?*timespec, sigmask: ?*const sigset_t) usize {
return syscall5(.ppoll, @ptrToInt(fds), n, @ptrToInt(timeout), @ptrToInt(sigmask), NSIG / 8);
}
pub fn read(fd: i32, buf: [*]u8, count: usize) usize {
return syscall3(.read, @bitCast(usize, @as(isize, fd)), @ptrToInt(buf), count);
}
pub fn preadv(fd: i32, iov: [*]const iovec, count: usize, offset: i64) usize {
const offset_halves = splitValueLE64(offset);
return syscall5(
.preadv,
@bitCast(usize, @as(isize, fd)),
@ptrToInt(iov),
count,
offset_halves[0],
offset_halves[1],
);
}
pub fn preadv2(fd: i32, iov: [*]const iovec, count: usize, offset: i64, flags: kernel_rwf) usize {
const offset_halves = splitValue64(offset);
return syscall6(
.preadv2,
@bitCast(usize, @as(isize, fd)),
@ptrToInt(iov),
count,
offset_halves[0],
offset_halves[1],
flags,
);
}
pub fn readv(fd: i32, iov: [*]const iovec, count: usize) usize {
return syscall3(.readv, @bitCast(usize, @as(isize, fd)), @ptrToInt(iov), count);
}
pub fn writev(fd: i32, iov: [*]const iovec_const, count: usize) usize {
return syscall3(.writev, @bitCast(usize, @as(isize, fd)), @ptrToInt(iov), count);
}
pub fn pwritev(fd: i32, iov: [*]const iovec_const, count: usize, offset: i64) usize {
const offset_halves = splitValueLE64(offset);
return syscall5(
.pwritev,
@bitCast(usize, @as(isize, fd)),
@ptrToInt(iov),
count,
offset_halves[0],
offset_halves[1],
);
}
pub fn pwritev2(fd: i32, iov: [*]const iovec_const, count: usize, offset: i64, flags: kernel_rwf) usize {
const offset_halves = splitValue64(offset);
return syscall6(
.pwritev2,
@bitCast(usize, @as(isize, fd)),
@ptrToInt(iov),
count,
offset_halves[0],
offset_halves[1],
flags,
);
}
pub fn rmdir(path: [*:0]const u8) usize {
if (@hasField(SYS, "rmdir")) {
return syscall1(.rmdir, @ptrToInt(path));
} else {
return syscall3(.unlinkat, @bitCast(usize, @as(isize, AT.FDCWD)), @ptrToInt(path), AT.REMOVEDIR);
}
}
pub fn symlink(existing: [*:0]const u8, new: [*:0]const u8) usize {
if (@hasField(SYS, "symlink")) {
return syscall2(.symlink, @ptrToInt(existing), @ptrToInt(new));
} else {
return syscall3(.symlinkat, @ptrToInt(existing), @bitCast(usize, @as(isize, AT.FDCWD)), @ptrToInt(new));
}
}
pub fn symlinkat(existing: [*:0]const u8, newfd: i32, newpath: [*:0]const u8) usize {
return syscall3(.symlinkat, @ptrToInt(existing), @bitCast(usize, @as(isize, newfd)), @ptrToInt(newpath));
}
pub fn pread(fd: i32, buf: [*]u8, count: usize, offset: i64) usize {
if (@hasField(SYS, "pread64") and usize_bits < 64) {
const offset_halves = splitValue64(offset);
if (require_aligned_register_pair) {
return syscall6(
.pread64,
@bitCast(usize, @as(isize, fd)),
@ptrToInt(buf),
count,
0,
offset_halves[0],
offset_halves[1],
);
} else {
return syscall5(
.pread64,
@bitCast(usize, @as(isize, fd)),
@ptrToInt(buf),
count,
offset_halves[0],
offset_halves[1],
);
}
} else {
// Some architectures (eg. 64bit SPARC) pread is called pread64.
const syscall_number = if (!@hasField(SYS, "pread") and @hasField(SYS, "pread64"))
.pread64
else
.pread;
return syscall4(
syscall_number,
@bitCast(usize, @as(isize, fd)),
@ptrToInt(buf),
count,
@bitCast(u64, offset),
);
}
}
pub fn access(path: [*:0]const u8, mode: u32) usize {
if (@hasField(SYS, "access")) {
return syscall2(.access, @ptrToInt(path), mode);
} else {
return syscall4(.faccessat, @bitCast(usize, @as(isize, AT.FDCWD)), @ptrToInt(path), mode, 0);
}
}
pub fn faccessat(dirfd: i32, path: [*:0]const u8, mode: u32, flags: u32) usize {
return syscall4(.faccessat, @bitCast(usize, @as(isize, dirfd)), @ptrToInt(path), mode, flags);
}
pub fn pipe(fd: *[2]i32) usize {
if (comptime (native_arch.isMIPS() or native_arch.isSPARC())) {
return syscall_pipe(fd);
} else if (@hasField(SYS, "pipe")) {
return syscall1(.pipe, @ptrToInt(fd));
} else {
return syscall2(.pipe2, @ptrToInt(fd), 0);
}
}
pub fn pipe2(fd: *[2]i32, flags: u32) usize {
return syscall2(.pipe2, @ptrToInt(fd), flags);
}
pub fn write(fd: i32, buf: [*]const u8, count: usize) usize {
return syscall3(.write, @bitCast(usize, @as(isize, fd)), @ptrToInt(buf), count);
}
pub fn ftruncate(fd: i32, length: i64) usize {
if (@hasField(SYS, "ftruncate64") and usize_bits < 64) {
const length_halves = splitValue64(length);
if (require_aligned_register_pair) {
return syscall4(
.ftruncate64,
@bitCast(usize, @as(isize, fd)),
0,
length_halves[0],
length_halves[1],
);
} else {
return syscall3(
.ftruncate64,
@bitCast(usize, @as(isize, fd)),
length_halves[0],
length_halves[1],
);
}
} else {
return syscall2(
.ftruncate,
@bitCast(usize, @as(isize, fd)),
@bitCast(usize, length),
);
}
}
pub fn pwrite(fd: i32, buf: [*]const u8, count: usize, offset: i64) usize {
if (@hasField(SYS, "pwrite64") and usize_bits < 64) {
const offset_halves = splitValue64(offset);
if (require_aligned_register_pair) {
return syscall6(
.pwrite64,
@bitCast(usize, @as(isize, fd)),
@ptrToInt(buf),
count,
0,
offset_halves[0],
offset_halves[1],
);
} else {
return syscall5(
.pwrite64,
@bitCast(usize, @as(isize, fd)),
@ptrToInt(buf),
count,
offset_halves[0],
offset_halves[1],
);
}
} else {
// Some architectures (eg. 64bit SPARC) pwrite is called pwrite64.
const syscall_number = if (!@hasField(SYS, "pwrite") and @hasField(SYS, "pwrite64"))
.pwrite64
else
.pwrite;
return syscall4(
syscall_number,
@bitCast(usize, @as(isize, fd)),
@ptrToInt(buf),
count,
@bitCast(u64, offset),
);
}
}
pub fn rename(old: [*:0]const u8, new: [*:0]const u8) usize {
if (@hasField(SYS, "rename")) {
return syscall2(.rename, @ptrToInt(old), @ptrToInt(new));
} else if (@hasField(SYS, "renameat")) {
return syscall4(.renameat, @bitCast(usize, @as(isize, AT.FDCWD)), @ptrToInt(old), @bitCast(usize, @as(isize, AT.FDCWD)), @ptrToInt(new));
} else {
return syscall5(.renameat2, @bitCast(usize, @as(isize, AT.FDCWD)), @ptrToInt(old), @bitCast(usize, @as(isize, AT.FDCWD)), @ptrToInt(new), 0);
}
}
pub fn renameat(oldfd: i32, oldpath: [*]const u8, newfd: i32, newpath: [*]const u8) usize {
if (@hasField(SYS, "renameat")) {
return syscall4(
.renameat,
@bitCast(usize, @as(isize, oldfd)),
@ptrToInt(oldpath),
@bitCast(usize, @as(isize, newfd)),
@ptrToInt(newpath),
);
} else {
return syscall5(
.renameat2,
@bitCast(usize, @as(isize, oldfd)),
@ptrToInt(oldpath),
@bitCast(usize, @as(isize, newfd)),
@ptrToInt(newpath),
0,
);
}
}
pub fn renameat2(oldfd: i32, oldpath: [*:0]const u8, newfd: i32, newpath: [*:0]const u8, flags: u32) usize {
return syscall5(
.renameat2,
@bitCast(usize, @as(isize, oldfd)),
@ptrToInt(oldpath),
@bitCast(usize, @as(isize, newfd)),
@ptrToInt(newpath),
flags,
);
}
pub fn open(path: [*:0]const u8, flags: u32, perm: mode_t) usize {
if (@hasField(SYS, "open")) {
return syscall3(.open, @ptrToInt(path), flags, perm);
} else {
return syscall4(
.openat,
@bitCast(usize, @as(isize, AT.FDCWD)),
@ptrToInt(path),
flags,
perm,
);
}
}
pub fn create(path: [*:0]const u8, perm: mode_t) usize {
return syscall2(.creat, @ptrToInt(path), perm);
}
pub fn openat(dirfd: i32, path: [*:0]const u8, flags: u32, mode: mode_t) usize {
// dirfd could be negative, for example AT.FDCWD is -100
return syscall4(.openat, @bitCast(usize, @as(isize, dirfd)), @ptrToInt(path), flags, mode);
}
/// See also `clone` (from the arch-specific include)
pub fn clone5(flags: usize, child_stack_ptr: usize, parent_tid: *i32, child_tid: *i32, newtls: usize) usize {
return syscall5(.clone, flags, child_stack_ptr, @ptrToInt(parent_tid), @ptrToInt(child_tid), newtls);
}
/// See also `clone` (from the arch-specific include)
pub fn clone2(flags: u32, child_stack_ptr: usize) usize {
return syscall2(.clone, flags, child_stack_ptr);
}
pub fn close(fd: i32) usize {
return syscall1(.close, @bitCast(usize, @as(isize, fd)));
}
/// Can only be called on 32 bit systems. For 64 bit see `lseek`.
pub fn llseek(fd: i32, offset: u64, result: ?*u64, whence: usize) usize {
// NOTE: The offset parameter splitting is independent from the target
// endianness.
return syscall5(
._llseek,
@bitCast(usize, @as(isize, fd)),
@truncate(usize, offset >> 32),
@truncate(usize, offset),
@ptrToInt(result),
whence,
);
}
/// Can only be called on 64 bit systems. For 32 bit see `llseek`.
pub fn lseek(fd: i32, offset: i64, whence: usize) usize {
return syscall3(.lseek, @bitCast(usize, @as(isize, fd)), @bitCast(usize, offset), whence);
}
pub fn exit(status: i32) noreturn {
_ = syscall1(.exit, @bitCast(usize, @as(isize, status)));
unreachable;
}
pub fn exit_group(status: i32) noreturn {
_ = syscall1(.exit_group, @bitCast(usize, @as(isize, status)));
unreachable;
}
pub fn getrandom(buf: [*]u8, count: usize, flags: u32) usize {
return syscall3(.getrandom, @ptrToInt(buf), count, flags);
}
pub fn kill(pid: pid_t, sig: i32) usize {
return syscall2(.kill, @bitCast(usize, @as(isize, pid)), @bitCast(usize, @as(isize, sig)));
}
pub fn tkill(tid: pid_t, sig: i32) usize {
return syscall2(.tkill, @bitCast(usize, @as(isize, tid)), @bitCast(usize, @as(isize, sig)));
}
pub fn tgkill(tgid: pid_t, tid: pid_t, sig: i32) usize {
return syscall3(.tgkill, @bitCast(usize, @as(isize, tgid)), @bitCast(usize, @as(isize, tid)), @bitCast(usize, @as(isize, sig)));
}
pub fn link(oldpath: [*:0]const u8, newpath: [*:0]const u8, flags: i32) usize {
if (@hasField(SYS, "link")) {
return syscall3(
.link,
@ptrToInt(oldpath),
@ptrToInt(newpath),
@bitCast(usize, @as(isize, flags)),
);
} else {
return syscall5(
.linkat,
@bitCast(usize, @as(isize, AT.FDCWD)),
@ptrToInt(oldpath),
@bitCast(usize, @as(isize, AT.FDCWD)),
@ptrToInt(newpath),
@bitCast(usize, @as(isize, flags)),
);
}
}
pub fn linkat(oldfd: fd_t, oldpath: [*:0]const u8, newfd: fd_t, newpath: [*:0]const u8, flags: i32) usize {
return syscall5(
.linkat,
@bitCast(usize, @as(isize, oldfd)),
@ptrToInt(oldpath),
@bitCast(usize, @as(isize, newfd)),
@ptrToInt(newpath),
@bitCast(usize, @as(isize, flags)),
);
}
pub fn unlink(path: [*:0]const u8) usize {
if (@hasField(SYS, "unlink")) {
return syscall1(.unlink, @ptrToInt(path));
} else {
return syscall3(.unlinkat, @bitCast(usize, @as(isize, AT.FDCWD)), @ptrToInt(path), 0);
}
}
pub fn unlinkat(dirfd: i32, path: [*:0]const u8, flags: u32) usize {
return syscall3(.unlinkat, @bitCast(usize, @as(isize, dirfd)), @ptrToInt(path), flags);
}
pub fn waitpid(pid: pid_t, status: *u32, flags: u32) usize {
return syscall4(.wait4, @bitCast(usize, @as(isize, pid)), @ptrToInt(status), flags, 0);
}
pub fn waitid(id_type: P, id: i32, infop: *siginfo_t, flags: u32) usize {
return syscall5(.waitid, @enumToInt(id_type), @bitCast(usize, @as(isize, id)), @ptrToInt(infop), flags, 0);
}
pub fn fcntl(fd: fd_t, cmd: i32, arg: usize) usize {
return syscall3(.fcntl, @bitCast(usize, @as(isize, fd)), @bitCast(usize, @as(isize, cmd)), arg);
}
pub fn flock(fd: fd_t, operation: i32) usize {
return syscall2(.flock, @bitCast(usize, @as(isize, fd)), @bitCast(usize, @as(isize, operation)));
}
var vdso_clock_gettime = @ptrCast(?*const c_void, init_vdso_clock_gettime);
// We must follow the C calling convention when we call into the VDSO
const vdso_clock_gettime_ty = fn (i32, *timespec) callconv(.C) usize;
pub fn clock_gettime(clk_id: i32, tp: *timespec) usize {
if (@hasDecl(VDSO, "CGT_SYM")) {
const ptr = @atomicLoad(?*const c_void, &vdso_clock_gettime, .Unordered);
if (ptr) |fn_ptr| {
const f = @ptrCast(vdso_clock_gettime_ty, fn_ptr);
const rc = f(clk_id, tp);
switch (rc) {
0, @bitCast(usize, -@as(isize, @enumToInt(E.INVAL))) => return rc,
else => {},
}
}
}
return syscall2(.clock_gettime, @bitCast(usize, @as(isize, clk_id)), @ptrToInt(tp));
}
fn init_vdso_clock_gettime(clk: i32, ts: *timespec) callconv(.C) usize {
const ptr = @intToPtr(?*const c_void, vdso.lookup(VDSO.CGT_VER, VDSO.CGT_SYM));
// Note that we may not have a VDSO at all, update the stub address anyway
// so that clock_gettime will fall back on the good old (and slow) syscall
@atomicStore(?*const c_void, &vdso_clock_gettime, ptr, .Monotonic);
// Call into the VDSO if available
if (ptr) |fn_ptr| {
const f = @ptrCast(vdso_clock_gettime_ty, fn_ptr);
return f(clk, ts);
}
return @bitCast(usize, -@as(isize, @enumToInt(E.NOSYS)));
}
pub fn clock_getres(clk_id: i32, tp: *timespec) usize {
return syscall2(.clock_getres, @bitCast(usize, @as(isize, clk_id)), @ptrToInt(tp));
}
pub fn clock_settime(clk_id: i32, tp: *const timespec) usize {
return syscall2(.clock_settime, @bitCast(usize, @as(isize, clk_id)), @ptrToInt(tp));
}
pub fn gettimeofday(tv: *timeval, tz: *timezone) usize {
return syscall2(.gettimeofday, @ptrToInt(tv), @ptrToInt(tz));
}
pub fn settimeofday(tv: *const timeval, tz: *const timezone) usize {
return syscall2(.settimeofday, @ptrToInt(tv), @ptrToInt(tz));
}
pub fn nanosleep(req: *const timespec, rem: ?*timespec) usize {
return syscall2(.nanosleep, @ptrToInt(req), @ptrToInt(rem));
}
pub fn setuid(uid: uid_t) usize {
if (@hasField(SYS, "setuid32")) {
return syscall1(.setuid32, uid);
} else {
return syscall1(.setuid, uid);
}
}
pub fn setgid(gid: gid_t) usize {
if (@hasField(SYS, "setgid32")) {
return syscall1(.setgid32, gid);
} else {
return syscall1(.setgid, gid);
}
}
pub fn setreuid(ruid: uid_t, euid: uid_t) usize {
if (@hasField(SYS, "setreuid32")) {
return syscall2(.setreuid32, ruid, euid);
} else {
return syscall2(.setreuid, ruid, euid);
}
}
pub fn setregid(rgid: gid_t, egid: gid_t) usize {
if (@hasField(SYS, "setregid32")) {
return syscall2(.setregid32, rgid, egid);
} else {
return syscall2(.setregid, rgid, egid);
}
}
pub fn getuid() uid_t {
if (@hasField(SYS, "getuid32")) {
return @intCast(uid_t, syscall0(.getuid32));
} else {
return @intCast(uid_t, syscall0(.getuid));
}
}
pub fn getgid() gid_t {
if (@hasField(SYS, "getgid32")) {
return @intCast(gid_t, syscall0(.getgid32));
} else {
return @intCast(gid_t, syscall0(.getgid));
}
}
pub fn geteuid() uid_t {
if (@hasField(SYS, "geteuid32")) {
return @intCast(uid_t, syscall0(.geteuid32));
} else {
return @intCast(uid_t, syscall0(.geteuid));
}
}
pub fn getegid() gid_t {
if (@hasField(SYS, "getegid32")) {
return @intCast(gid_t, syscall0(.getegid32));
} else {
return @intCast(gid_t, syscall0(.getegid));
}
}
pub fn seteuid(euid: uid_t) usize {
// We use setresuid here instead of setreuid to ensure that the saved uid
// is not changed. This is what musl and recent glibc versions do as well.
//
// The setresuid(2) man page says that if -1 is passed the corresponding
// id will not be changed. Since uid_t is unsigned, this wraps around to the
// max value in C.
comptime assert(@typeInfo(uid_t) == .Int and @typeInfo(uid_t).Int.signedness == .unsigned);
return setresuid(std.math.maxInt(uid_t), euid, std.math.maxInt(uid_t));
}
pub fn setegid(egid: gid_t) usize {
// We use setresgid here instead of setregid to ensure that the saved uid
// is not changed. This is what musl and recent glibc versions do as well.
//
// The setresgid(2) man page says that if -1 is passed the corresponding
// id will not be changed. Since gid_t is unsigned, this wraps around to the
// max value in C.
comptime assert(@typeInfo(uid_t) == .Int and @typeInfo(uid_t).Int.signedness == .unsigned);
return setresgid(std.math.maxInt(gid_t), egid, std.math.maxInt(gid_t));
}
pub fn getresuid(ruid: *uid_t, euid: *uid_t, suid: *uid_t) usize {
if (@hasField(SYS, "getresuid32")) {
return syscall3(.getresuid32, @ptrToInt(ruid), @ptrToInt(euid), @ptrToInt(suid));
} else {
return syscall3(.getresuid, @ptrToInt(ruid), @ptrToInt(euid), @ptrToInt(suid));
}
}
pub fn getresgid(rgid: *gid_t, egid: *gid_t, sgid: *gid_t) usize {
if (@hasField(SYS, "getresgid32")) {
return syscall3(.getresgid32, @ptrToInt(rgid), @ptrToInt(egid), @ptrToInt(sgid));
} else {
return syscall3(.getresgid, @ptrToInt(rgid), @ptrToInt(egid), @ptrToInt(sgid));
}
}
pub fn setresuid(ruid: uid_t, euid: uid_t, suid: uid_t) usize {
if (@hasField(SYS, "setresuid32")) {
return syscall3(.setresuid32, ruid, euid, suid);
} else {
return syscall3(.setresuid, ruid, euid, suid);
}
}
pub fn setresgid(rgid: gid_t, egid: gid_t, sgid: gid_t) usize {
if (@hasField(SYS, "setresgid32")) {
return syscall3(.setresgid32, rgid, egid, sgid);
} else {
return syscall3(.setresgid, rgid, egid, sgid);
}
}
pub fn getgroups(size: usize, list: *gid_t) usize {
if (@hasField(SYS, "getgroups32")) {
return syscall2(.getgroups32, size, @ptrToInt(list));
} else {
return syscall2(.getgroups, size, @ptrToInt(list));
}
}
pub fn setgroups(size: usize, list: *const gid_t) usize {
if (@hasField(SYS, "setgroups32")) {
return syscall2(.setgroups32, size, @ptrToInt(list));
} else {
return syscall2(.setgroups, size, @ptrToInt(list));
}
}
pub fn getpid() pid_t {
return @bitCast(pid_t, @truncate(u32, syscall0(.getpid)));
}
pub fn gettid() pid_t {
return @bitCast(pid_t, @truncate(u32, syscall0(.gettid)));
}
pub fn sigprocmask(flags: u32, noalias set: ?*const sigset_t, noalias oldset: ?*sigset_t) usize {
return syscall4(.rt_sigprocmask, flags, @ptrToInt(set), @ptrToInt(oldset), NSIG / 8);
}
pub fn sigaction(sig: u6, noalias act: ?*const Sigaction, noalias oact: ?*Sigaction) usize {
assert(sig >= 1);
assert(sig != SIG.KILL);
assert(sig != SIG.STOP);
var ksa: k_sigaction = undefined;
var oldksa: k_sigaction = undefined;
const mask_size = @sizeOf(@TypeOf(ksa.mask));
if (act) |new| {
const restorer_fn = if ((new.flags & SA.SIGINFO) != 0) restore_rt else restore;
ksa = k_sigaction{
.handler = new.handler.handler,
.flags = new.flags | SA.RESTORER,
.mask = undefined,
.restorer = @ptrCast(fn () callconv(.C) void, restorer_fn),
};
@memcpy(@ptrCast([*]u8, &ksa.mask), @ptrCast([*]const u8, &new.mask), mask_size);
}
const ksa_arg = if (act != null) @ptrToInt(&ksa) else 0;
const oldksa_arg = if (oact != null) @ptrToInt(&oldksa) else 0;
const result = switch (native_arch) {
// The sparc version of rt_sigaction needs the restorer function to be passed as an argument too.
.sparc, .sparcv9 => syscall5(.rt_sigaction, sig, ksa_arg, oldksa_arg, @ptrToInt(ksa.restorer), mask_size),
else => syscall4(.rt_sigaction, sig, ksa_arg, oldksa_arg, mask_size),
};
if (getErrno(result) != .SUCCESS) return result;
if (oact) |old| {
old.handler.handler = oldksa.handler;
old.flags = @truncate(c_uint, oldksa.flags);
@memcpy(@ptrCast([*]u8, &old.mask), @ptrCast([*]const u8, &oldksa.mask), mask_size);
}
return 0;
}
const usize_bits = @typeInfo(usize).Int.bits;
pub fn sigaddset(set: *sigset_t, sig: u6) void {
const s = sig - 1;
// shift in musl: s&8*sizeof *set->__bits-1
const shift = @intCast(u5, s & (usize_bits - 1));
const val = @intCast(u32, 1) << shift;
(set.*)[@intCast(usize, s) / usize_bits] |= val;
}
pub fn sigismember(set: *const sigset_t, sig: u6) bool {
const s = sig - 1;
return ((set.*)[@intCast(usize, s) / usize_bits] & (@intCast(usize, 1) << (s & (usize_bits - 1)))) != 0;
}
pub fn getsockname(fd: i32, noalias addr: *sockaddr, noalias len: *socklen_t) usize {
if (native_arch == .i386) {
return socketcall(SC.getsockname, &[3]usize{ @bitCast(usize, @as(isize, fd)), @ptrToInt(addr), @ptrToInt(len) });
}
return syscall3(.getsockname, @bitCast(usize, @as(isize, fd)), @ptrToInt(addr), @ptrToInt(len));
}
pub fn getpeername(fd: i32, noalias addr: *sockaddr, noalias len: *socklen_t) usize {
if (native_arch == .i386) {
return socketcall(SC.getpeername, &[3]usize{ @bitCast(usize, @as(isize, fd)), @ptrToInt(addr), @ptrToInt(len) });
}
return syscall3(.getpeername, @bitCast(usize, @as(isize, fd)), @ptrToInt(addr), @ptrToInt(len));
}
pub fn socket(domain: u32, socket_type: u32, protocol: u32) usize {
if (native_arch == .i386) {
return socketcall(SC.socket, &[3]usize{ domain, socket_type, protocol });
}
return syscall3(.socket, domain, socket_type, protocol);
}
pub fn setsockopt(fd: i32, level: u32, optname: u32, optval: [*]const u8, optlen: socklen_t) usize {
if (native_arch == .i386) {
return socketcall(SC.setsockopt, &[5]usize{ @bitCast(usize, @as(isize, fd)), level, optname, @ptrToInt(optval), @intCast(usize, optlen) });
}
return syscall5(.setsockopt, @bitCast(usize, @as(isize, fd)), level, optname, @ptrToInt(optval), @intCast(usize, optlen));
}
pub fn getsockopt(fd: i32, level: u32, optname: u32, noalias optval: [*]u8, noalias optlen: *socklen_t) usize {
if (native_arch == .i386) {
return socketcall(SC.getsockopt, &[5]usize{ @bitCast(usize, @as(isize, fd)), level, optname, @ptrToInt(optval), @ptrToInt(optlen) });
}
return syscall5(.getsockopt, @bitCast(usize, @as(isize, fd)), level, optname, @ptrToInt(optval), @ptrToInt(optlen));
}
pub fn sendmsg(fd: i32, msg: *const std.x.os.Socket.Message, flags: c_int) usize {
if (native_arch == .i386) {
return socketcall(SC.sendmsg, &[3]usize{ @bitCast(usize, @as(isize, fd)), @ptrToInt(msg), @bitCast(usize, @as(isize, flags)) });
}
return syscall3(.sendmsg, @bitCast(usize, @as(isize, fd)), @ptrToInt(msg), @bitCast(usize, @as(isize, flags)));
}
pub fn sendmmsg(fd: i32, msgvec: [*]mmsghdr_const, vlen: u32, flags: u32) usize {
if (@typeInfo(usize).Int.bits > @typeInfo(@TypeOf(mmsghdr(undefined).msg_len)).Int.bits) {
// workaround kernel brokenness:
// if adding up all iov_len overflows a i32 then split into multiple calls
// see https://www.openwall.com/lists/musl/2014/06/07/5
const kvlen = if (vlen > IOV_MAX) IOV_MAX else vlen; // matches kernel
var next_unsent: usize = 0;
for (msgvec[0..kvlen]) |*msg, i| {
var size: i32 = 0;
const msg_iovlen = @intCast(usize, msg.msg_hdr.msg_iovlen); // kernel side this is treated as unsigned
for (msg.msg_hdr.msg_iov[0..msg_iovlen]) |iov| {
if (iov.iov_len > std.math.maxInt(i32) or @addWithOverflow(i32, size, @intCast(i32, iov.iov_len), &size)) {
// batch-send all messages up to the current message
if (next_unsent < i) {
const batch_size = i - next_unsent;
const r = syscall4(.sendmmsg, @bitCast(usize, @as(isize, fd)), @ptrToInt(&msgvec[next_unsent]), batch_size, flags);
if (getErrno(r) != 0) return next_unsent;
if (r < batch_size) return next_unsent + r;
}
// send current message as own packet
const r = sendmsg(fd, &msg.msg_hdr, flags);
if (getErrno(r) != 0) return r;
// Linux limits the total bytes sent by sendmsg to INT_MAX, so this cast is safe.
msg.msg_len = @intCast(u32, r);
next_unsent = i + 1;
break;
}
}
}
if (next_unsent < kvlen or next_unsent == 0) { // want to make sure at least one syscall occurs (e.g. to trigger MSG.EOR)
const batch_size = kvlen - next_unsent;
const r = syscall4(.sendmmsg, @bitCast(usize, @as(isize, fd)), @ptrToInt(&msgvec[next_unsent]), batch_size, flags);
if (getErrno(r) != 0) return r;
return next_unsent + r;
}
return kvlen;
}
return syscall4(.sendmmsg, @bitCast(usize, @as(isize, fd)), @ptrToInt(msgvec), vlen, flags);
}
pub fn connect(fd: i32, addr: *const c_void, len: socklen_t) usize {
if (native_arch == .i386) {
return socketcall(SC.connect, &[3]usize{ @bitCast(usize, @as(isize, fd)), @ptrToInt(addr), len });
}
return syscall3(.connect, @bitCast(usize, @as(isize, fd)), @ptrToInt(addr), len);
}
pub fn recvmsg(fd: i32, msg: *std.x.os.Socket.Message, flags: c_int) usize {
if (native_arch == .i386) {
return socketcall(SC.recvmsg, &[3]usize{ @bitCast(usize, @as(isize, fd)), @ptrToInt(msg), @bitCast(usize, @as(isize, flags)) });
}
return syscall3(.recvmsg, @bitCast(usize, @as(isize, fd)), @ptrToInt(msg), @bitCast(usize, @as(isize, flags)));
}
pub fn recvfrom(fd: i32, noalias buf: [*]u8, len: usize, flags: u32, noalias addr: ?*sockaddr, noalias alen: ?*socklen_t) usize {
if (native_arch == .i386) {
return socketcall(SC.recvfrom, &[6]usize{ @bitCast(usize, @as(isize, fd)), @ptrToInt(buf), len, flags, @ptrToInt(addr), @ptrToInt(alen) });
}
return syscall6(.recvfrom, @bitCast(usize, @as(isize, fd)), @ptrToInt(buf), len, flags, @ptrToInt(addr), @ptrToInt(alen));
}
pub fn shutdown(fd: i32, how: i32) usize {
if (native_arch == .i386) {
return socketcall(SC.shutdown, &[2]usize{ @bitCast(usize, @as(isize, fd)), @bitCast(usize, @as(isize, how)) });
}
return syscall2(.shutdown, @bitCast(usize, @as(isize, fd)), @bitCast(usize, @as(isize, how)));
}
pub fn bind(fd: i32, addr: *const sockaddr, len: socklen_t) usize {
if (native_arch == .i386) {
return socketcall(SC.bind, &[3]usize{ @bitCast(usize, @as(isize, fd)), @ptrToInt(addr), @intCast(usize, len) });
}
return syscall3(.bind, @bitCast(usize, @as(isize, fd)), @ptrToInt(addr), @intCast(usize, len));
}
pub fn listen(fd: i32, backlog: u32) usize {
if (native_arch == .i386) {
return socketcall(SC.listen, &[2]usize{ @bitCast(usize, @as(isize, fd)), backlog });
}
return syscall2(.listen, @bitCast(usize, @as(isize, fd)), backlog);
}
pub fn sendto(fd: i32, buf: [*]const u8, len: usize, flags: u32, addr: ?*const sockaddr, alen: socklen_t) usize {
if (native_arch == .i386) {
return socketcall(SC.sendto, &[6]usize{ @bitCast(usize, @as(isize, fd)), @ptrToInt(buf), len, flags, @ptrToInt(addr), @intCast(usize, alen) });
}
return syscall6(.sendto, @bitCast(usize, @as(isize, fd)), @ptrToInt(buf), len, flags, @ptrToInt(addr), @intCast(usize, alen));
}
pub fn sendfile(outfd: i32, infd: i32, offset: ?*i64, count: usize) usize {
if (@hasField(SYS, "sendfile64")) {
return syscall4(
.sendfile64,
@bitCast(usize, @as(isize, outfd)),
@bitCast(usize, @as(isize, infd)),
@ptrToInt(offset),
count,
);
} else {
return syscall4(
.sendfile,
@bitCast(usize, @as(isize, outfd)),
@bitCast(usize, @as(isize, infd)),
@ptrToInt(offset),
count,
);
}
}
pub fn socketpair(domain: i32, socket_type: i32, protocol: i32, fd: [2]i32) usize {
if (native_arch == .i386) {
return socketcall(SC.socketpair, &[4]usize{ @intCast(usize, domain), @intCast(usize, socket_type), @intCast(usize, protocol), @ptrToInt(&fd[0]) });
}
return syscall4(.socketpair, @intCast(usize, domain), @intCast(usize, socket_type), @intCast(usize, protocol), @ptrToInt(&fd[0]));
}
pub fn accept(fd: i32, noalias addr: ?*sockaddr, noalias len: ?*socklen_t) usize {
if (native_arch == .i386) {
return socketcall(SC.accept, &[4]usize{ fd, addr, len, 0 });
}
return accept4(fd, addr, len, 0);
}
pub fn accept4(fd: i32, noalias addr: ?*sockaddr, noalias len: ?*socklen_t, flags: u32) usize {
if (native_arch == .i386) {
return socketcall(SC.accept4, &[4]usize{ @bitCast(usize, @as(isize, fd)), @ptrToInt(addr), @ptrToInt(len), flags });
}
return syscall4(.accept4, @bitCast(usize, @as(isize, fd)), @ptrToInt(addr), @ptrToInt(len), flags);
}
pub fn fstat(fd: i32, stat_buf: *Stat) usize {
if (@hasField(SYS, "fstat64")) {
return syscall2(.fstat64, @bitCast(usize, @as(isize, fd)), @ptrToInt(stat_buf));
} else {
return syscall2(.fstat, @bitCast(usize, @as(isize, fd)), @ptrToInt(stat_buf));
}
}
pub fn stat(pathname: [*:0]const u8, statbuf: *Stat) usize {
if (@hasField(SYS, "stat64")) {
return syscall2(.stat64, @ptrToInt(pathname), @ptrToInt(statbuf));
} else {
return syscall2(.stat, @ptrToInt(pathname), @ptrToInt(statbuf));
}
}
pub fn lstat(pathname: [*:0]const u8, statbuf: *Stat) usize {
if (@hasField(SYS, "lstat64")) {
return syscall2(.lstat64, @ptrToInt(pathname), @ptrToInt(statbuf));
} else {
return syscall2(.lstat, @ptrToInt(pathname), @ptrToInt(statbuf));
}
}
pub fn fstatat(dirfd: i32, path: [*:0]const u8, stat_buf: *Stat, flags: u32) usize {
if (@hasField(SYS, "fstatat64")) {
return syscall4(.fstatat64, @bitCast(usize, @as(isize, dirfd)), @ptrToInt(path), @ptrToInt(stat_buf), flags);
} else {
return syscall4(.fstatat, @bitCast(usize, @as(isize, dirfd)), @ptrToInt(path), @ptrToInt(stat_buf), flags);
}
}
pub fn statx(dirfd: i32, path: [*]const u8, flags: u32, mask: u32, statx_buf: *Statx) usize {
if (@hasField(SYS, "statx")) {
return syscall5(
.statx,
@bitCast(usize, @as(isize, dirfd)),
@ptrToInt(path),
flags,
mask,
@ptrToInt(statx_buf),
);
}
return @bitCast(usize, -@as(isize, @enumToInt(E.NOSYS)));
}
pub fn listxattr(path: [*:0]const u8, list: [*]u8, size: usize) usize {
return syscall3(.listxattr, @ptrToInt(path), @ptrToInt(list), size);
}
pub fn llistxattr(path: [*:0]const u8, list: [*]u8, size: usize) usize {
return syscall3(.llistxattr, @ptrToInt(path), @ptrToInt(list), size);
}
pub fn flistxattr(fd: usize, list: [*]u8, size: usize) usize {
return syscall3(.flistxattr, fd, @ptrToInt(list), size);
}
pub fn getxattr(path: [*:0]const u8, name: [*:0]const u8, value: [*]u8, size: usize) usize {
return syscall4(.getxattr, @ptrToInt(path), @ptrToInt(name), @ptrToInt(value), size);
}
pub fn lgetxattr(path: [*:0]const u8, name: [*:0]const u8, value: [*]u8, size: usize) usize {
return syscall4(.lgetxattr, @ptrToInt(path), @ptrToInt(name), @ptrToInt(value), size);
}
pub fn fgetxattr(fd: usize, name: [*:0]const u8, value: [*]u8, size: usize) usize {
return syscall4(.lgetxattr, fd, @ptrToInt(name), @ptrToInt(value), size);
}
pub fn setxattr(path: [*:0]const u8, name: [*:0]const u8, value: *const void, size: usize, flags: usize) usize {
return syscall5(.setxattr, @ptrToInt(path), @ptrToInt(name), @ptrToInt(value), size, flags);
}
pub fn lsetxattr(path: [*:0]const u8, name: [*:0]const u8, value: *const void, size: usize, flags: usize) usize {
return syscall5(.lsetxattr, @ptrToInt(path), @ptrToInt(name), @ptrToInt(value), size, flags);
}
pub fn fsetxattr(fd: usize, name: [*:0]const u8, value: *const void, size: usize, flags: usize) usize {
return syscall5(.fsetxattr, fd, @ptrToInt(name), @ptrToInt(value), size, flags);
}
pub fn removexattr(path: [*:0]const u8, name: [*:0]const u8) usize {
return syscall2(.removexattr, @ptrToInt(path), @ptrToInt(name));
}
pub fn lremovexattr(path: [*:0]const u8, name: [*:0]const u8) usize {
return syscall2(.lremovexattr, @ptrToInt(path), @ptrToInt(name));
}
pub fn fremovexattr(fd: usize, name: [*:0]const u8) usize {
return syscall2(.fremovexattr, fd, @ptrToInt(name));
}
pub fn sched_yield() usize {
return syscall0(.sched_yield);
}
pub fn sched_getaffinity(pid: pid_t, size: usize, set: *cpu_set_t) usize {
const rc = syscall3(.sched_getaffinity, @bitCast(usize, @as(isize, pid)), size, @ptrToInt(set));
if (@bitCast(isize, rc) < 0) return rc;
if (rc < size) @memset(@ptrCast([*]u8, set) + rc, 0, size - rc);
return 0;
}
pub fn epoll_create() usize {
return epoll_create1(0);
}
pub fn epoll_create1(flags: usize) usize {
return syscall1(.epoll_create1, flags);
}
pub fn epoll_ctl(epoll_fd: i32, op: u32, fd: i32, ev: ?*epoll_event) usize {
return syscall4(.epoll_ctl, @bitCast(usize, @as(isize, epoll_fd)), @intCast(usize, op), @bitCast(usize, @as(isize, fd)), @ptrToInt(ev));
}
pub fn epoll_wait(epoll_fd: i32, events: [*]epoll_event, maxevents: u32, timeout: i32) usize {
return epoll_pwait(epoll_fd, events, maxevents, timeout, null);
}
pub fn epoll_pwait(epoll_fd: i32, events: [*]epoll_event, maxevents: u32, timeout: i32, sigmask: ?*const sigset_t) usize {
return syscall6(
.epoll_pwait,
@bitCast(usize, @as(isize, epoll_fd)),
@ptrToInt(events),
@intCast(usize, maxevents),
@bitCast(usize, @as(isize, timeout)),
@ptrToInt(sigmask),
@sizeOf(sigset_t),
);
}
pub fn eventfd(count: u32, flags: u32) usize {
return syscall2(.eventfd2, count, flags);
}
pub fn timerfd_create(clockid: i32, flags: u32) usize {
return syscall2(.timerfd_create, @bitCast(usize, @as(isize, clockid)), flags);
}
pub const itimerspec = extern struct {
it_interval: timespec,
it_value: timespec,
};
pub fn timerfd_gettime(fd: i32, curr_value: *itimerspec) usize {
return syscall2(.timerfd_gettime, @bitCast(usize, @as(isize, fd)), @ptrToInt(curr_value));
}
pub fn timerfd_settime(fd: i32, flags: u32, new_value: *const itimerspec, old_value: ?*itimerspec) usize {
return syscall4(.timerfd_settime, @bitCast(usize, @as(isize, fd)), flags, @ptrToInt(new_value), @ptrToInt(old_value));
}
pub fn unshare(flags: usize) usize {
return syscall1(.unshare, flags);
}
pub fn capget(hdrp: *cap_user_header_t, datap: *cap_user_data_t) usize {
return syscall2(.capget, @ptrToInt(hdrp), @ptrToInt(datap));
}
pub fn capset(hdrp: *cap_user_header_t, datap: *const cap_user_data_t) usize {
return syscall2(.capset, @ptrToInt(hdrp), @ptrToInt(datap));
}
pub fn sigaltstack(ss: ?*stack_t, old_ss: ?*stack_t) usize {
return syscall2(.sigaltstack, @ptrToInt(ss), @ptrToInt(old_ss));
}
pub fn uname(uts: *utsname) usize {
return syscall1(.uname, @ptrToInt(uts));
}
pub fn io_uring_setup(entries: u32, p: *io_uring_params) usize {
return syscall2(.io_uring_setup, entries, @ptrToInt(p));
}
pub fn io_uring_enter(fd: i32, to_submit: u32, min_complete: u32, flags: u32, sig: ?*sigset_t) usize {
return syscall6(.io_uring_enter, @bitCast(usize, @as(isize, fd)), to_submit, min_complete, flags, @ptrToInt(sig), NSIG / 8);
}
pub fn io_uring_register(fd: i32, opcode: IORING_REGISTER, arg: ?*const c_void, nr_args: u32) usize {
return syscall4(.io_uring_register, @bitCast(usize, @as(isize, fd)), @enumToInt(opcode), @ptrToInt(arg), nr_args);
}
pub fn memfd_create(name: [*:0]const u8, flags: u32) usize {
return syscall2(.memfd_create, @ptrToInt(name), flags);
}
pub fn getrusage(who: i32, usage: *rusage) usize {
return syscall2(.getrusage, @bitCast(usize, @as(isize, who)), @ptrToInt(usage));
}
pub fn tcgetattr(fd: fd_t, termios_p: *termios) usize {
return syscall3(.ioctl, @bitCast(usize, @as(isize, fd)), T.CGETS, @ptrToInt(termios_p));
}
pub fn tcsetattr(fd: fd_t, optional_action: TCSA, termios_p: *const termios) usize {
return syscall3(.ioctl, @bitCast(usize, @as(isize, fd)), T.CSETS + @enumToInt(optional_action), @ptrToInt(termios_p));
}
pub fn ioctl(fd: fd_t, request: u32, arg: usize) usize {
return syscall3(.ioctl, @bitCast(usize, @as(isize, fd)), request, arg);
}
pub fn signalfd(fd: fd_t, mask: *const sigset_t, flags: u32) usize {
return syscall4(.signalfd4, @bitCast(usize, @as(isize, fd)), @ptrToInt(mask), NSIG / 8, flags);
}
pub fn copy_file_range(fd_in: fd_t, off_in: ?*i64, fd_out: fd_t, off_out: ?*i64, len: usize, flags: u32) usize {
return syscall6(
.copy_file_range,
@bitCast(usize, @as(isize, fd_in)),
@ptrToInt(off_in),
@bitCast(usize, @as(isize, fd_out)),
@ptrToInt(off_out),
len,
flags,
);
}
pub fn bpf(cmd: BPF.Cmd, attr: *BPF.Attr, size: u32) usize {
return syscall3(.bpf, @enumToInt(cmd), @ptrToInt(attr), size);
}
pub fn sync() void {
_ = syscall0(.sync);
}
pub fn syncfs(fd: fd_t) usize {
return syscall1(.syncfs, @bitCast(usize, @as(isize, fd)));
}
pub fn fsync(fd: fd_t) usize {
return syscall1(.fsync, @bitCast(usize, @as(isize, fd)));
}
pub fn fdatasync(fd: fd_t) usize {
return syscall1(.fdatasync, @bitCast(usize, @as(isize, fd)));
}
pub fn prctl(option: i32, arg2: usize, arg3: usize, arg4: usize, arg5: usize) usize {
return syscall5(.prctl, @bitCast(usize, @as(isize, option)), arg2, arg3, arg4, arg5);
}
pub fn getrlimit(resource: rlimit_resource, rlim: *rlimit) usize {
// use prlimit64 to have 64 bit limits on 32 bit platforms
return prlimit(0, resource, null, rlim);
}
pub fn setrlimit(resource: rlimit_resource, rlim: *const rlimit) usize {
// use prlimit64 to have 64 bit limits on 32 bit platforms
return prlimit(0, resource, rlim, null);
}
pub fn prlimit(pid: pid_t, resource: rlimit_resource, new_limit: ?*const rlimit, old_limit: ?*rlimit) usize {
return syscall4(
.prlimit64,
@bitCast(usize, @as(isize, pid)),
@bitCast(usize, @as(isize, @enumToInt(resource))),
@ptrToInt(new_limit),
@ptrToInt(old_limit),
);
}
pub fn madvise(address: [*]u8, len: usize, advice: u32) usize {
return syscall3(.madvise, @ptrToInt(address), len, advice);
}
pub fn pidfd_open(pid: pid_t, flags: u32) usize {
return syscall2(.pidfd_open, @bitCast(usize, @as(isize, pid)), flags);
}
pub fn pidfd_getfd(pidfd: fd_t, targetfd: fd_t, flags: u32) usize {
return syscall3(
.pidfd_getfd,
@bitCast(usize, @as(isize, pidfd)),
@bitCast(usize, @as(isize, targetfd)),
flags,
);
}
pub fn pidfd_send_signal(pidfd: fd_t, sig: i32, info: ?*siginfo_t, flags: u32) usize {
return syscall4(
.pidfd_send_signal,
@bitCast(usize, @as(isize, pidfd)),
@bitCast(usize, @as(isize, sig)),
@ptrToInt(info),
flags,
);
}
pub fn process_vm_readv(pid: pid_t, local: [*]const iovec, local_count: usize, remote: [*]const iovec, remote_count: usize, flags: usize) usize {
return syscall6(
.process_vm_readv,
@bitCast(usize, @as(isize, pid)),
@ptrToInt(local),
local_count,
@ptrToInt(remote),
remote_count,
flags,
);
}
pub fn process_vm_writev(pid: pid_t, local: [*]const iovec, local_count: usize, remote: [*]const iovec, remote_count: usize, flags: usize) usize {
return syscall6(
.process_vm_writev,
@bitCast(usize, @as(isize, pid)),
@ptrToInt(local),
local_count,
@ptrToInt(remote),
remote_count,
flags,
);
}
pub fn fadvise(fd: fd_t, offset: i64, len: i64, advice: usize) usize {
if (comptime builtin.cpu.arch.isMIPS()) {
// MIPS requires a 7 argument syscall
const offset_halves = splitValue64(offset);
const length_halves = splitValue64(len);
return syscall7(
.fadvise64,
@bitCast(usize, @as(isize, fd)),
0,
offset_halves[0],
offset_halves[1],
length_halves[0],
length_halves[1],
advice,
);
} else if (comptime builtin.cpu.arch.isARM()) {
// ARM reorders the arguments
const offset_halves = splitValue64(offset);
const length_halves = splitValue64(len);
return syscall6(
.fadvise64_64,
@bitCast(usize, @as(isize, fd)),
advice,
offset_halves[0],
offset_halves[1],
length_halves[0],
length_halves[1],
);
} else if (@hasField(SYS, "fadvise64_64") and usize_bits != 64) {
// The extra usize check is needed to avoid SPARC64 because it provides both
// fadvise64 and fadvise64_64 but the latter behaves differently than other platforms.
const offset_halves = splitValue64(offset);
const length_halves = splitValue64(len);
return syscall6(
.fadvise64_64,
@bitCast(usize, @as(isize, fd)),
offset_halves[0],
offset_halves[1],
length_halves[0],
length_halves[1],
advice,
);
} else {
return syscall4(
.fadvise64,
@bitCast(usize, @as(isize, fd)),
@bitCast(usize, offset),
@bitCast(usize, len),
advice,
);
}
}
pub fn perf_event_open(
attr: *perf_event_attr,
pid: pid_t,
cpu: i32,
group_fd: fd_t,
flags: usize,
) usize {
return syscall5(
.perf_event_open,
@ptrToInt(attr),
@bitCast(usize, @as(isize, pid)),
@bitCast(usize, @as(isize, cpu)),
@bitCast(usize, @as(isize, group_fd)),
flags,
);
}
pub const E = switch (native_arch) {
.mips, .mipsel => @import("linux/errno/mips.zig").E,
.sparc, .sparcel, .sparcv9 => @import("linux/errno/sparc.zig").E,
else => @import("linux/errno/generic.zig").E,
};
pub const pid_t = i32;
pub const fd_t = i32;
pub const uid_t = u32;
pub const gid_t = u32;
pub const clock_t = isize;
pub const NAME_MAX = 255;
pub const PATH_MAX = 4096;
pub const IOV_MAX = 1024;
/// Largest hardware address length
/// e.g. a mac address is a type of hardware address
pub const MAX_ADDR_LEN = 32;
pub const STDIN_FILENO = 0;
pub const STDOUT_FILENO = 1;
pub const STDERR_FILENO = 2;
pub const AT = struct {
/// Special value used to indicate openat should use the current working directory
pub const FDCWD = -100;
/// Do not follow symbolic links
pub const SYMLINK_NOFOLLOW = 0x100;
/// Remove directory instead of unlinking file
pub const REMOVEDIR = 0x200;
/// Follow symbolic links.
pub const SYMLINK_FOLLOW = 0x400;
/// Suppress terminal automount traversal
pub const NO_AUTOMOUNT = 0x800;
/// Allow empty relative pathname
pub const EMPTY_PATH = 0x1000;
/// Type of synchronisation required from statx()
pub const STATX_SYNC_TYPE = 0x6000;
/// - Do whatever stat() does
pub const STATX_SYNC_AS_STAT = 0x0000;
/// - Force the attributes to be sync'd with the server
pub const STATX_FORCE_SYNC = 0x2000;
/// - Don't sync attributes with the server
pub const STATX_DONT_SYNC = 0x4000;
/// Apply to the entire subtree
pub const RECURSIVE = 0x8000;
};
pub const FALLOC = struct {
/// Default is extend size
pub const FL_KEEP_SIZE = 0x01;
/// De-allocates range
pub const FL_PUNCH_HOLE = 0x02;
/// Reserved codepoint
pub const FL_NO_HIDE_STALE = 0x04;
/// Removes a range of a file without leaving a hole in the file
pub const FL_COLLAPSE_RANGE = 0x08;
/// Converts a range of file to zeros preferably without issuing data IO
pub const FL_ZERO_RANGE = 0x10;
/// Inserts space within the file size without overwriting any existing data
pub const FL_INSERT_RANGE = 0x20;
/// Unshares shared blocks within the file size without overwriting any existing data
pub const FL_UNSHARE_RANGE = 0x40;
};
pub const FUTEX = struct {
pub const WAIT = 0;
pub const WAKE = 1;
pub const FD = 2;
pub const REQUEUE = 3;
pub const CMP_REQUEUE = 4;
pub const WAKE_OP = 5;
pub const LOCK_PI = 6;
pub const UNLOCK_PI = 7;
pub const TRYLOCK_PI = 8;
pub const WAIT_BITSET = 9;
pub const WAKE_BITSET = 10;
pub const WAIT_REQUEUE_PI = 11;
pub const CMP_REQUEUE_PI = 12;
pub const PRIVATE_FLAG = 128;
pub const CLOCK_REALTIME = 256;
};
pub const PROT = struct {
/// page can not be accessed
pub const NONE = 0x0;
/// page can be read
pub const READ = 0x1;
/// page can be written
pub const WRITE = 0x2;
/// page can be executed
pub const EXEC = 0x4;
/// page may be used for atomic ops
pub const SEM = switch (native_arch) {
// TODO: also xtensa
.mips, .mipsel, .mips64, .mips64el => 0x10,
else => 0x8,
};
/// mprotect flag: extend change to start of growsdown vma
pub const GROWSDOWN = 0x01000000;
/// mprotect flag: extend change to end of growsup vma
pub const GROWSUP = 0x02000000;
};
pub const FD_CLOEXEC = 1;
pub const F_OK = 0;
pub const X_OK = 1;
pub const W_OK = 2;
pub const R_OK = 4;
pub const W = struct {
pub const NOHANG = 1;
pub const UNTRACED = 2;
pub const STOPPED = 2;
pub const EXITED = 4;
pub const CONTINUED = 8;
pub const NOWAIT = 0x1000000;
pub fn EXITSTATUS(s: u32) u8 {
return @intCast(u8, (s & 0xff00) >> 8);
}
pub fn TERMSIG(s: u32) u32 {
return s & 0x7f;
}
pub fn STOPSIG(s: u32) u32 {
return EXITSTATUS(s);
}
pub fn IFEXITED(s: u32) bool {
return TERMSIG(s) == 0;
}
pub fn IFSTOPPED(s: u32) bool {
return @truncate(u16, ((s & 0xffff) *% 0x10001) >> 8) > 0x7f00;
}
pub fn IFSIGNALED(s: u32) bool {
return (s & 0xffff) -% 1 < 0xff;
}
};
// waitid id types
pub const P = enum(c_uint) {
ALL = 0,
PID = 1,
PGID = 2,
PIDFD = 3,
_,
};
pub const SA = if (is_mips) struct {
pub const NOCLDSTOP = 1;
pub const NOCLDWAIT = 0x10000;
pub const SIGINFO = 8;
pub const RESTART = 0x10000000;
pub const RESETHAND = 0x80000000;
pub const ONSTACK = 0x08000000;
pub const NODEFER = 0x40000000;
pub const RESTORER = 0x04000000;
} else if (is_sparc) struct {
pub const NOCLDSTOP = 0x8;
pub const NOCLDWAIT = 0x100;
pub const SIGINFO = 0x200;
pub const RESTART = 0x2;
pub const RESETHAND = 0x4;
pub const ONSTACK = 0x1;
pub const NODEFER = 0x20;
pub const RESTORER = 0x04000000;
} else struct {
pub const NOCLDSTOP = 1;
pub const NOCLDWAIT = 2;
pub const SIGINFO = 4;
pub const RESTART = 0x10000000;
pub const RESETHAND = 0x80000000;
pub const ONSTACK = 0x08000000;
pub const NODEFER = 0x40000000;
pub const RESTORER = 0x04000000;
};
pub const SIG = if (is_mips) struct {
pub const BLOCK = 1;
pub const UNBLOCK = 2;
pub const SETMASK = 3;
pub const HUP = 1;
pub const INT = 2;
pub const QUIT = 3;
pub const ILL = 4;
pub const TRAP = 5;
pub const ABRT = 6;
pub const IOT = ABRT;
pub const BUS = 7;
pub const FPE = 8;
pub const KILL = 9;
pub const USR1 = 10;
pub const SEGV = 11;
pub const USR2 = 12;
pub const PIPE = 13;
pub const ALRM = 14;
pub const TERM = 15;
pub const STKFLT = 16;
pub const CHLD = 17;
pub const CONT = 18;
pub const STOP = 19;
pub const TSTP = 20;
pub const TTIN = 21;
pub const TTOU = 22;
pub const URG = 23;
pub const XCPU = 24;
pub const XFSZ = 25;
pub const VTALRM = 26;
pub const PROF = 27;
pub const WINCH = 28;
pub const IO = 29;
pub const POLL = 29;
pub const PWR = 30;
pub const SYS = 31;
pub const UNUSED = SIG.SYS;
pub const ERR = @intToPtr(?Sigaction.sigaction_fn, maxInt(usize));
pub const DFL = @intToPtr(?Sigaction.sigaction_fn, 0);
pub const IGN = @intToPtr(?Sigaction.sigaction_fn, 1);
} else if (is_sparc) struct {
pub const BLOCK = 1;
pub const UNBLOCK = 2;
pub const SETMASK = 4;
pub const HUP = 1;
pub const INT = 2;
pub const QUIT = 3;
pub const ILL = 4;
pub const TRAP = 5;
pub const ABRT = 6;
pub const EMT = 7;
pub const FPE = 8;
pub const KILL = 9;
pub const BUS = 10;
pub const SEGV = 11;
pub const SYS = 12;
pub const PIPE = 13;
pub const ALRM = 14;
pub const TERM = 15;
pub const URG = 16;
pub const STOP = 17;
pub const TSTP = 18;
pub const CONT = 19;
pub const CHLD = 20;
pub const TTIN = 21;
pub const TTOU = 22;
pub const POLL = 23;
pub const XCPU = 24;
pub const XFSZ = 25;
pub const VTALRM = 26;
pub const PROF = 27;
pub const WINCH = 28;
pub const LOST = 29;
pub const USR1 = 30;
pub const USR2 = 31;
pub const IOT = ABRT;
pub const CLD = CHLD;
pub const PWR = LOST;
pub const IO = SIG.POLL;
pub const ERR = @intToPtr(?Sigaction.sigaction_fn, maxInt(usize));
pub const DFL = @intToPtr(?Sigaction.sigaction_fn, 0);
pub const IGN = @intToPtr(?Sigaction.sigaction_fn, 1);
} else struct {
pub const BLOCK = 0;
pub const UNBLOCK = 1;
pub const SETMASK = 2;
pub const HUP = 1;
pub const INT = 2;
pub const QUIT = 3;
pub const ILL = 4;
pub const TRAP = 5;
pub const ABRT = 6;
pub const IOT = ABRT;
pub const BUS = 7;
pub const FPE = 8;
pub const KILL = 9;
pub const USR1 = 10;
pub const SEGV = 11;
pub const USR2 = 12;
pub const PIPE = 13;
pub const ALRM = 14;
pub const TERM = 15;
pub const STKFLT = 16;
pub const CHLD = 17;
pub const CONT = 18;
pub const STOP = 19;
pub const TSTP = 20;
pub const TTIN = 21;
pub const TTOU = 22;
pub const URG = 23;
pub const XCPU = 24;
pub const XFSZ = 25;
pub const VTALRM = 26;
pub const PROF = 27;
pub const WINCH = 28;
pub const IO = 29;
pub const POLL = 29;
pub const PWR = 30;
pub const SYS = 31;
pub const UNUSED = SIG.SYS;
pub const ERR = @intToPtr(?Sigaction.sigaction_fn, maxInt(usize));
pub const DFL = @intToPtr(?Sigaction.sigaction_fn, 0);
pub const IGN = @intToPtr(?Sigaction.sigaction_fn, 1);
};
pub const kernel_rwf = u32;
pub const RWF = struct {
/// high priority request, poll if possible
pub const HIPRI: kernel_rwf = 0x00000001;
/// per-IO O.DSYNC
pub const DSYNC: kernel_rwf = 0x00000002;
/// per-IO O.SYNC
pub const SYNC: kernel_rwf = 0x00000004;
/// per-IO, return -EAGAIN if operation would block
pub const NOWAIT: kernel_rwf = 0x00000008;
/// per-IO O.APPEND
pub const APPEND: kernel_rwf = 0x00000010;
};
pub const SEEK = struct {
pub const SET = 0;
pub const CUR = 1;
pub const END = 2;
};
pub const SHUT = struct {
pub const RD = 0;
pub const WR = 1;
pub const RDWR = 2;
};
pub const SOCK = struct {
pub const STREAM = if (is_mips) 2 else 1;
pub const DGRAM = if (is_mips) 1 else 2;
pub const RAW = 3;
pub const RDM = 4;
pub const SEQPACKET = 5;
pub const DCCP = 6;
pub const PACKET = 10;
pub const CLOEXEC = 0o2000000;
pub const NONBLOCK = if (is_mips) 0o200 else 0o4000;
};
pub const TCP = struct {
/// Turn off Nagle's algorithm
pub const NODELAY = 1;
/// Limit MSS
pub const MAXSEG = 2;
/// Never send partially complete segments.
pub const CORK = 3;
/// Start keeplives after this period, in seconds
pub const KEEPIDLE = 4;
/// Interval between keepalives
pub const KEEPINTVL = 5;
/// Number of keepalives before death
pub const KEEPCNT = 6;
/// Number of SYN retransmits
pub const SYNCNT = 7;
/// Life time of orphaned FIN-WAIT-2 state
pub const LINGER2 = 8;
/// Wake up listener only when data arrive
pub const DEFER_ACCEPT = 9;
/// Bound advertised window
pub const WINDOW_CLAMP = 10;
/// Information about this connection.
pub const INFO = 11;
/// Block/reenable quick acks
pub const QUICKACK = 12;
/// Congestion control algorithm
pub const CONGESTION = 13;
/// TCP MD5 Signature (RFC2385)
pub const MD5SIG = 14;
/// Use linear timeouts for thin streams
pub const THIN_LINEAR_TIMEOUTS = 16;
/// Fast retrans. after 1 dupack
pub const THIN_DUPACK = 17;
/// How long for loss retry before timeout
pub const USER_TIMEOUT = 18;
/// TCP sock is under repair right now
pub const REPAIR = 19;
pub const REPAIR_QUEUE = 20;
pub const QUEUE_SEQ = 21;
pub const REPAIR_OPTIONS = 22;
/// Enable FastOpen on listeners
pub const FASTOPEN = 23;
pub const TIMESTAMP = 24;
/// limit number of unsent bytes in write queue
pub const NOTSENT_LOWAT = 25;
/// Get Congestion Control (optional) info
pub const CC_INFO = 26;
/// Record SYN headers for new connections
pub const SAVE_SYN = 27;
/// Get SYN headers recorded for connection
pub const SAVED_SYN = 28;
/// Get/set window parameters
pub const REPAIR_WINDOW = 29;
/// Attempt FastOpen with connect
pub const FASTOPEN_CONNECT = 30;
/// Attach a ULP to a TCP connection
pub const ULP = 31;
/// TCP MD5 Signature with extensions
pub const MD5SIG_EXT = 32;
/// Set the key for Fast Open (cookie)
pub const FASTOPEN_KEY = 33;
/// Enable TFO without a TFO cookie
pub const FASTOPEN_NO_COOKIE = 34;
pub const ZEROCOPY_RECEIVE = 35;
/// Notify bytes available to read as a cmsg on read
pub const INQ = 36;
pub const CM_INQ = INQ;
/// delay outgoing packets by XX usec
pub const TX_DELAY = 37;
pub const REPAIR_ON = 1;
pub const REPAIR_OFF = 0;
/// Turn off without window probes
pub const REPAIR_OFF_NO_WP = -1;
};
pub const PF = struct {
pub const UNSPEC = 0;
pub const LOCAL = 1;
pub const UNIX = LOCAL;
pub const FILE = LOCAL;
pub const INET = 2;
pub const AX25 = 3;
pub const IPX = 4;
pub const APPLETALK = 5;
pub const NETROM = 6;
pub const BRIDGE = 7;
pub const ATMPVC = 8;
pub const X25 = 9;
pub const INET6 = 10;
pub const ROSE = 11;
pub const DECnet = 12;
pub const NETBEUI = 13;
pub const SECURITY = 14;
pub const KEY = 15;
pub const NETLINK = 16;
pub const ROUTE = PF.NETLINK;
pub const PACKET = 17;
pub const ASH = 18;
pub const ECONET = 19;
pub const ATMSVC = 20;
pub const RDS = 21;
pub const SNA = 22;
pub const IRDA = 23;
pub const PPPOX = 24;
pub const WANPIPE = 25;
pub const LLC = 26;
pub const IB = 27;
pub const MPLS = 28;
pub const CAN = 29;
pub const TIPC = 30;
pub const BLUETOOTH = 31;
pub const IUCV = 32;
pub const RXRPC = 33;
pub const ISDN = 34;
pub const PHONET = 35;
pub const IEEE802154 = 36;
pub const CAIF = 37;
pub const ALG = 38;
pub const NFC = 39;
pub const VSOCK = 40;
pub const KCM = 41;
pub const QIPCRTR = 42;
pub const SMC = 43;
pub const XDP = 44;
pub const MAX = 45;
};
pub const AF = struct {
pub const UNSPEC = PF.UNSPEC;
pub const LOCAL = PF.LOCAL;
pub const UNIX = AF.LOCAL;
pub const FILE = AF.LOCAL;
pub const INET = PF.INET;
pub const AX25 = PF.AX25;
pub const IPX = PF.IPX;
pub const APPLETALK = PF.APPLETALK;
pub const NETROM = PF.NETROM;
pub const BRIDGE = PF.BRIDGE;
pub const ATMPVC = PF.ATMPVC;
pub const X25 = PF.X25;
pub const INET6 = PF.INET6;
pub const ROSE = PF.ROSE;
pub const DECnet = PF.DECnet;
pub const NETBEUI = PF.NETBEUI;
pub const SECURITY = PF.SECURITY;
pub const KEY = PF.KEY;
pub const NETLINK = PF.NETLINK;
pub const ROUTE = PF.ROUTE;
pub const PACKET = PF.PACKET;
pub const ASH = PF.ASH;
pub const ECONET = PF.ECONET;
pub const ATMSVC = PF.ATMSVC;
pub const RDS = PF.RDS;
pub const SNA = PF.SNA;
pub const IRDA = PF.IRDA;
pub const PPPOX = PF.PPPOX;
pub const WANPIPE = PF.WANPIPE;
pub const LLC = PF.LLC;
pub const IB = PF.IB;
pub const MPLS = PF.MPLS;
pub const CAN = PF.CAN;
pub const TIPC = PF.TIPC;
pub const BLUETOOTH = PF.BLUETOOTH;
pub const IUCV = PF.IUCV;
pub const RXRPC = PF.RXRPC;
pub const ISDN = PF.ISDN;
pub const PHONET = PF.PHONET;
pub const IEEE802154 = PF.IEEE802154;
pub const CAIF = PF.CAIF;
pub const ALG = PF.ALG;
pub const NFC = PF.NFC;
pub const VSOCK = PF.VSOCK;
pub const KCM = PF.KCM;
pub const QIPCRTR = PF.QIPCRTR;
pub const SMC = PF.SMC;
pub const XDP = PF.XDP;
pub const MAX = PF.MAX;
};
pub const SO = struct {
pub usingnamespace if (is_mips) struct {
pub const DEBUG = 1;
pub const REUSEADDR = 0x0004;
pub const KEEPALIVE = 0x0008;
pub const DONTROUTE = 0x0010;
pub const BROADCAST = 0x0020;
pub const LINGER = 0x0080;
pub const OOBINLINE = 0x0100;
pub const REUSEPORT = 0x0200;
pub const SNDBUF = 0x1001;
pub const RCVBUF = 0x1002;
pub const SNDLOWAT = 0x1003;
pub const RCVLOWAT = 0x1004;
pub const RCVTIMEO = 0x1006;
pub const SNDTIMEO = 0x1005;
pub const ERROR = 0x1007;
pub const TYPE = 0x1008;
pub const ACCEPTCONN = 0x1009;
pub const PROTOCOL = 0x1028;
pub const DOMAIN = 0x1029;
pub const NO_CHECK = 11;
pub const PRIORITY = 12;
pub const BSDCOMPAT = 14;
pub const PASSCRED = 17;
pub const PEERCRED = 18;
pub const PEERSEC = 30;
pub const SNDBUFFORCE = 31;
pub const RCVBUFFORCE = 33;
} else if (is_ppc or is_ppc64) struct {
pub const DEBUG = 1;
pub const REUSEADDR = 2;
pub const TYPE = 3;
pub const ERROR = 4;
pub const DONTROUTE = 5;
pub const BROADCAST = 6;
pub const SNDBUF = 7;
pub const RCVBUF = 8;
pub const KEEPALIVE = 9;
pub const OOBINLINE = 10;
pub const NO_CHECK = 11;
pub const PRIORITY = 12;
pub const LINGER = 13;
pub const BSDCOMPAT = 14;
pub const REUSEPORT = 15;
pub const RCVLOWAT = 16;
pub const SNDLOWAT = 17;
pub const RCVTIMEO = 18;
pub const SNDTIMEO = 19;
pub const PASSCRED = 20;
pub const PEERCRED = 21;
pub const ACCEPTCONN = 30;
pub const PEERSEC = 31;
pub const SNDBUFFORCE = 32;
pub const RCVBUFFORCE = 33;
pub const PROTOCOL = 38;
pub const DOMAIN = 39;
} else struct {
pub const DEBUG = 1;
pub const REUSEADDR = 2;
pub const TYPE = 3;
pub const ERROR = 4;
pub const DONTROUTE = 5;
pub const BROADCAST = 6;
pub const SNDBUF = 7;
pub const RCVBUF = 8;
pub const KEEPALIVE = 9;
pub const OOBINLINE = 10;
pub const NO_CHECK = 11;
pub const PRIORITY = 12;
pub const LINGER = 13;
pub const BSDCOMPAT = 14;
pub const REUSEPORT = 15;
pub const PASSCRED = 16;
pub const PEERCRED = 17;
pub const RCVLOWAT = 18;
pub const SNDLOWAT = 19;
pub const RCVTIMEO = 20;
pub const SNDTIMEO = 21;
pub const ACCEPTCONN = 30;
pub const PEERSEC = 31;
pub const SNDBUFFORCE = 32;
pub const RCVBUFFORCE = 33;
pub const PROTOCOL = 38;
pub const DOMAIN = 39;
};
pub const SECURITY_AUTHENTICATION = 22;
pub const SECURITY_ENCRYPTION_TRANSPORT = 23;
pub const SECURITY_ENCRYPTION_NETWORK = 24;
pub const BINDTODEVICE = 25;
pub const ATTACH_FILTER = 26;
pub const DETACH_FILTER = 27;
pub const GET_FILTER = ATTACH_FILTER;
pub const PEERNAME = 28;
pub const TIMESTAMP_OLD = 29;
pub const PASSSEC = 34;
pub const TIMESTAMPNS_OLD = 35;
pub const MARK = 36;
pub const TIMESTAMPING_OLD = 37;
pub const RXQ_OVFL = 40;
pub const WIFI_STATUS = 41;
pub const PEEK_OFF = 42;
pub const NOFCS = 43;
pub const LOCK_FILTER = 44;
pub const SELECT_ERR_QUEUE = 45;
pub const BUSY_POLL = 46;
pub const MAX_PACING_RATE = 47;
pub const BPF_EXTENSIONS = 48;
pub const INCOMING_CPU = 49;
pub const ATTACH_BPF = 50;
pub const DETACH_BPF = DETACH_FILTER;
pub const ATTACH_REUSEPORT_CBPF = 51;
pub const ATTACH_REUSEPORT_EBPF = 52;
pub const CNX_ADVICE = 53;
pub const MEMINFO = 55;
pub const INCOMING_NAPI_ID = 56;
pub const COOKIE = 57;
pub const PEERGROUPS = 59;
pub const ZEROCOPY = 60;
pub const TXTIME = 61;
pub const BINDTOIFINDEX = 62;
pub const TIMESTAMP_NEW = 63;
pub const TIMESTAMPNS_NEW = 64;
pub const TIMESTAMPING_NEW = 65;
pub const RCVTIMEO_NEW = 66;
pub const SNDTIMEO_NEW = 67;
pub const DETACH_REUSEPORT_BPF = 68;
};
pub const SCM = struct {
pub const WIFI_STATUS = SO.WIFI_STATUS;
pub const TIMESTAMPING_OPT_STATS = 54;
pub const TIMESTAMPING_PKTINFO = 58;
pub const TXTIME = SO.TXTIME;
};
pub const SOL = struct {
pub const SOCKET = if (is_mips) 65535 else 1;
pub const IP = 0;
pub const IPV6 = 41;
pub const ICMPV6 = 58;
pub const RAW = 255;
pub const DECNET = 261;
pub const X25 = 262;
pub const PACKET = 263;
pub const ATM = 264;
pub const AAL = 265;
pub const IRDA = 266;
pub const NETBEUI = 267;
pub const LLC = 268;
pub const DCCP = 269;
pub const NETLINK = 270;
pub const TIPC = 271;
pub const RXRPC = 272;
pub const PPPOL2TP = 273;
pub const BLUETOOTH = 274;
pub const PNPIPE = 275;
pub const RDS = 276;
pub const IUCV = 277;
pub const CAIF = 278;
pub const ALG = 279;
pub const NFC = 280;
pub const KCM = 281;
pub const TLS = 282;
pub const XDP = 283;
};
pub const SOMAXCONN = 128;
pub const IP = struct {
pub const TOS = 1;
pub const TTL = 2;
pub const HDRINCL = 3;
pub const OPTIONS = 4;
pub const ROUTER_ALERT = 5;
pub const RECVOPTS = 6;
pub const RETOPTS = 7;
pub const PKTINFO = 8;
pub const PKTOPTIONS = 9;
pub const PMTUDISC = 10;
pub const MTU_DISCOVER = 10;
pub const RECVERR = 11;
pub const RECVTTL = 12;
pub const RECVTOS = 13;
pub const MTU = 14;
pub const FREEBIND = 15;
pub const IPSEC_POLICY = 16;
pub const XFRM_POLICY = 17;
pub const PASSSEC = 18;
pub const TRANSPARENT = 19;
pub const ORIGDSTADDR = 20;
pub const RECVORIGDSTADDR = IP.ORIGDSTADDR;
pub const MINTTL = 21;
pub const NODEFRAG = 22;
pub const CHECKSUM = 23;
pub const BIND_ADDRESS_NO_PORT = 24;
pub const RECVFRAGSIZE = 25;
pub const MULTICAST_IF = 32;
pub const MULTICAST_TTL = 33;
pub const MULTICAST_LOOP = 34;
pub const ADD_MEMBERSHIP = 35;
pub const DROP_MEMBERSHIP = 36;
pub const UNBLOCK_SOURCE = 37;
pub const BLOCK_SOURCE = 38;
pub const ADD_SOURCE_MEMBERSHIP = 39;
pub const DROP_SOURCE_MEMBERSHIP = 40;
pub const MSFILTER = 41;
pub const MULTICAST_ALL = 49;
pub const UNICAST_IF = 50;
pub const RECVRETOPTS = IP.RETOPTS;
pub const PMTUDISC_DONT = 0;
pub const PMTUDISC_WANT = 1;
pub const PMTUDISC_DO = 2;
pub const PMTUDISC_PROBE = 3;
pub const PMTUDISC_INTERFACE = 4;
pub const PMTUDISC_OMIT = 5;
pub const DEFAULT_MULTICAST_TTL = 1;
pub const DEFAULT_MULTICAST_LOOP = 1;
pub const MAX_MEMBERSHIPS = 20;
};
/// IPv6 socket options
pub const IPV6 = struct {
pub const ADDRFORM = 1;
pub const @"2292PKTINFO" = 2;
pub const @"2292HOPOPTS" = 3;
pub const @"2292DSTOPTS" = 4;
pub const @"2292RTHDR" = 5;
pub const @"2292PKTOPTIONS" = 6;
pub const CHECKSUM = 7;
pub const @"2292HOPLIMIT" = 8;
pub const NEXTHOP = 9;
pub const AUTHHDR = 10;
pub const FLOWINFO = 11;
pub const UNICAST_HOPS = 16;
pub const MULTICAST_IF = 17;
pub const MULTICAST_HOPS = 18;
pub const MULTICAST_LOOP = 19;
pub const ADD_MEMBERSHIP = 20;
pub const DROP_MEMBERSHIP = 21;
pub const ROUTER_ALERT = 22;
pub const MTU_DISCOVER = 23;
pub const MTU = 24;
pub const RECVERR = 25;
pub const V6ONLY = 26;
pub const JOIN_ANYCAST = 27;
pub const LEAVE_ANYCAST = 28;
// IPV6.MTU_DISCOVER values
pub const PMTUDISC_DONT = 0;
pub const PMTUDISC_WANT = 1;
pub const PMTUDISC_DO = 2;
pub const PMTUDISC_PROBE = 3;
pub const PMTUDISC_INTERFACE = 4;
pub const PMTUDISC_OMIT = 5;
// Flowlabel
pub const FLOWLABEL_MGR = 32;
pub const FLOWINFO_SEND = 33;
pub const IPSEC_POLICY = 34;
pub const XFRM_POLICY = 35;
pub const HDRINCL = 36;
// Advanced API (RFC3542) (1)
pub const RECVPKTINFO = 49;
pub const PKTINFO = 50;
pub const RECVHOPLIMIT = 51;
pub const HOPLIMIT = 52;
pub const RECVHOPOPTS = 53;
pub const HOPOPTS = 54;
pub const RTHDRDSTOPTS = 55;
pub const RECVRTHDR = 56;
pub const RTHDR = 57;
pub const RECVDSTOPTS = 58;
pub const DSTOPTS = 59;
pub const RECVPATHMTU = 60;
pub const PATHMTU = 61;
pub const DONTFRAG = 62;
// Advanced API (RFC3542) (2)
pub const RECVTCLASS = 66;
pub const TCLASS = 67;
pub const AUTOFLOWLABEL = 70;
// RFC5014: Source address selection
pub const ADDR_PREFERENCES = 72;
pub const PREFER_SRC_TMP = 0x0001;
pub const PREFER_SRC_PUBLIC = 0x0002;
pub const PREFER_SRC_PUBTMP_DEFAULT = 0x0100;
pub const PREFER_SRC_COA = 0x0004;
pub const PREFER_SRC_HOME = 0x0400;
pub const PREFER_SRC_CGA = 0x0008;
pub const PREFER_SRC_NONCGA = 0x0800;
// RFC5082: Generalized Ttl Security Mechanism
pub const MINHOPCOUNT = 73;
pub const ORIGDSTADDR = 74;
pub const RECVORIGDSTADDR = IPV6.ORIGDSTADDR;
pub const TRANSPARENT = 75;
pub const UNICAST_IF = 76;
pub const RECVFRAGSIZE = 77;
pub const FREEBIND = 78;
};
pub const MSG = struct {
pub const OOB = 0x0001;
pub const PEEK = 0x0002;
pub const DONTROUTE = 0x0004;
pub const CTRUNC = 0x0008;
pub const PROXY = 0x0010;
pub const TRUNC = 0x0020;
pub const DONTWAIT = 0x0040;
pub const EOR = 0x0080;
pub const WAITALL = 0x0100;
pub const FIN = 0x0200;
pub const SYN = 0x0400;
pub const CONFIRM = 0x0800;
pub const RST = 0x1000;
pub const ERRQUEUE = 0x2000;
pub const NOSIGNAL = 0x4000;
pub const MORE = 0x8000;
pub const WAITFORONE = 0x10000;
pub const BATCH = 0x40000;
pub const ZEROCOPY = 0x4000000;
pub const FASTOPEN = 0x20000000;
pub const CMSG_CLOEXEC = 0x40000000;
};
pub const DT = struct {
pub const UNKNOWN = 0;
pub const FIFO = 1;
pub const CHR = 2;
pub const DIR = 4;
pub const BLK = 6;
pub const REG = 8;
pub const LNK = 10;
pub const SOCK = 12;
pub const WHT = 14;
};
pub const T = struct {
pub const CGETS = if (is_mips) 0x540D else 0x5401;
pub const CSETS = 0x5402;
pub const CSETSW = 0x5403;
pub const CSETSF = 0x5404;
pub const CGETA = 0x5405;
pub const CSETA = 0x5406;
pub const CSETAW = 0x5407;
pub const CSETAF = 0x5408;
pub const CSBRK = 0x5409;
pub const CXONC = 0x540A;
pub const CFLSH = 0x540B;
pub const IOCEXCL = 0x540C;
pub const IOCNXCL = 0x540D;
pub const IOCSCTTY = 0x540E;
pub const IOCGPGRP = 0x540F;
pub const IOCSPGRP = 0x5410;
pub const IOCOUTQ = if (is_mips) 0x7472 else 0x5411;
pub const IOCSTI = 0x5412;
pub const IOCGWINSZ = if (is_mips or is_ppc64) 0x40087468 else 0x5413;
pub const IOCSWINSZ = if (is_mips or is_ppc64) 0x80087467 else 0x5414;
pub const IOCMGET = 0x5415;
pub const IOCMBIS = 0x5416;
pub const IOCMBIC = 0x5417;
pub const IOCMSET = 0x5418;
pub const IOCGSOFTCAR = 0x5419;
pub const IOCSSOFTCAR = 0x541A;
pub const FIONREAD = if (is_mips) 0x467F else 0x541B;
pub const IOCINQ = FIONREAD;
pub const IOCLINUX = 0x541C;
pub const IOCCONS = 0x541D;
pub const IOCGSERIAL = 0x541E;
pub const IOCSSERIAL = 0x541F;
pub const IOCPKT = 0x5420;
pub const FIONBIO = 0x5421;
pub const IOCNOTTY = 0x5422;
pub const IOCSETD = 0x5423;
pub const IOCGETD = 0x5424;
pub const CSBRKP = 0x5425;
pub const IOCSBRK = 0x5427;
pub const IOCCBRK = 0x5428;
pub const IOCGSID = 0x5429;
pub const IOCGRS485 = 0x542E;
pub const IOCSRS485 = 0x542F;
pub const IOCGPTN = IOCTL.IOR('T', 0x30, c_uint);
pub const IOCSPTLCK = IOCTL.IOW('T', 0x31, c_int);
pub const IOCGDEV = IOCTL.IOR('T', 0x32, c_uint);
pub const CGETX = 0x5432;
pub const CSETX = 0x5433;
pub const CSETXF = 0x5434;
pub const CSETXW = 0x5435;
pub const IOCSIG = IOCTL.IOW('T', 0x36, c_int);
pub const IOCVHANGUP = 0x5437;
pub const IOCGPKT = IOCTL.IOR('T', 0x38, c_int);
pub const IOCGPTLCK = IOCTL.IOR('T', 0x39, c_int);
pub const IOCGEXCL = IOCTL.IOR('T', 0x40, c_int);
};
pub const EPOLL = struct {
pub const CLOEXEC = O.CLOEXEC;
pub const CTL_ADD = 1;
pub const CTL_DEL = 2;
pub const CTL_MOD = 3;
pub const IN = 0x001;
pub const PRI = 0x002;
pub const OUT = 0x004;
pub const RDNORM = 0x040;
pub const RDBAND = 0x080;
pub const WRNORM = if (is_mips) 0x004 else 0x100;
pub const WRBAND = if (is_mips) 0x100 else 0x200;
pub const MSG = 0x400;
pub const ERR = 0x008;
pub const HUP = 0x010;
pub const RDHUP = 0x2000;
pub const EXCLUSIVE = (@as(u32, 1) << 28);
pub const WAKEUP = (@as(u32, 1) << 29);
pub const ONESHOT = (@as(u32, 1) << 30);
pub const ET = (@as(u32, 1) << 31);
};
pub const CLOCK = struct {
pub const REALTIME = 0;
pub const MONOTONIC = 1;
pub const PROCESS_CPUTIME_ID = 2;
pub const THREAD_CPUTIME_ID = 3;
pub const MONOTONIC_RAW = 4;
pub const REALTIME_COARSE = 5;
pub const MONOTONIC_COARSE = 6;
pub const BOOTTIME = 7;
pub const REALTIME_ALARM = 8;
pub const BOOTTIME_ALARM = 9;
pub const SGI_CYCLE = 10;
pub const TAI = 11;
};
pub const CSIGNAL = 0x000000ff;
pub const CLONE = struct {
pub const VM = 0x00000100;
pub const FS = 0x00000200;
pub const FILES = 0x00000400;
pub const SIGHAND = 0x00000800;
pub const PIDFD = 0x00001000;
pub const PTRACE = 0x00002000;
pub const VFORK = 0x00004000;
pub const PARENT = 0x00008000;
pub const THREAD = 0x00010000;
pub const NEWNS = 0x00020000;
pub const SYSVSEM = 0x00040000;
pub const SETTLS = 0x00080000;
pub const PARENT_SETTID = 0x00100000;
pub const CHILD_CLEARTID = 0x00200000;
pub const DETACHED = 0x00400000;
pub const UNTRACED = 0x00800000;
pub const CHILD_SETTID = 0x01000000;
pub const NEWCGROUP = 0x02000000;
pub const NEWUTS = 0x04000000;
pub const NEWIPC = 0x08000000;
pub const NEWUSER = 0x10000000;
pub const NEWPID = 0x20000000;
pub const NEWNET = 0x40000000;
pub const IO = 0x80000000;
// Flags for the clone3() syscall.
/// Clear any signal handler and reset to SIG_DFL.
pub const CLEAR_SIGHAND = 0x100000000;
/// Clone into a specific cgroup given the right permissions.
pub const INTO_CGROUP = 0x200000000;
// cloning flags intersect with CSIGNAL so can be used with unshare and clone3 syscalls only.
/// New time namespace
pub const NEWTIME = 0x00000080;
};
pub const EFD = struct {
pub const SEMAPHORE = 1;
pub const CLOEXEC = O.CLOEXEC;
pub const NONBLOCK = O.NONBLOCK;
};
pub const MS = struct {
pub const RDONLY = 1;
pub const NOSUID = 2;
pub const NODEV = 4;
pub const NOEXEC = 8;
pub const SYNCHRONOUS = 16;
pub const REMOUNT = 32;
pub const MANDLOCK = 64;
pub const DIRSYNC = 128;
pub const NOATIME = 1024;
pub const NODIRATIME = 2048;
pub const BIND = 4096;
pub const MOVE = 8192;
pub const REC = 16384;
pub const SILENT = 32768;
pub const POSIXACL = (1 << 16);
pub const UNBINDABLE = (1 << 17);
pub const PRIVATE = (1 << 18);
pub const SLAVE = (1 << 19);
pub const SHARED = (1 << 20);
pub const RELATIME = (1 << 21);
pub const KERNMOUNT = (1 << 22);
pub const I_VERSION = (1 << 23);
pub const STRICTATIME = (1 << 24);
pub const LAZYTIME = (1 << 25);
pub const NOREMOTELOCK = (1 << 27);
pub const NOSEC = (1 << 28);
pub const BORN = (1 << 29);
pub const ACTIVE = (1 << 30);
pub const NOUSER = (1 << 31);
pub const RMT_MASK = (RDONLY | SYNCHRONOUS | MANDLOCK | I_VERSION | LAZYTIME);
pub const MGC_VAL = 0xc0ed0000;
pub const MGC_MSK = 0xffff0000;
};
pub const MNT = struct {
pub const FORCE = 1;
pub const DETACH = 2;
pub const EXPIRE = 4;
};
pub const UMOUNT_NOFOLLOW = 8;
pub const IN = struct {
pub const CLOEXEC = O.CLOEXEC;
pub const NONBLOCK = O.NONBLOCK;
pub const ACCESS = 0x00000001;
pub const MODIFY = 0x00000002;
pub const ATTRIB = 0x00000004;
pub const CLOSE_WRITE = 0x00000008;
pub const CLOSE_NOWRITE = 0x00000010;
pub const CLOSE = CLOSE_WRITE | CLOSE_NOWRITE;
pub const OPEN = 0x00000020;
pub const MOVED_FROM = 0x00000040;
pub const MOVED_TO = 0x00000080;
pub const MOVE = MOVED_FROM | MOVED_TO;
pub const CREATE = 0x00000100;
pub const DELETE = 0x00000200;
pub const DELETE_SELF = 0x00000400;
pub const MOVE_SELF = 0x00000800;
pub const ALL_EVENTS = 0x00000fff;
pub const UNMOUNT = 0x00002000;
pub const Q_OVERFLOW = 0x00004000;
pub const IGNORED = 0x00008000;
pub const ONLYDIR = 0x01000000;
pub const DONT_FOLLOW = 0x02000000;
pub const EXCL_UNLINK = 0x04000000;
pub const MASK_ADD = 0x20000000;
pub const ISDIR = 0x40000000;
pub const ONESHOT = 0x80000000;
};
pub const S = struct {
pub const IFMT = 0o170000;
pub const IFDIR = 0o040000;
pub const IFCHR = 0o020000;
pub const IFBLK = 0o060000;
pub const IFREG = 0o100000;
pub const IFIFO = 0o010000;
pub const IFLNK = 0o120000;
pub const IFSOCK = 0o140000;
pub const ISUID = 0o4000;
pub const ISGID = 0o2000;
pub const ISVTX = 0o1000;
pub const IRUSR = 0o400;
pub const IWUSR = 0o200;
pub const IXUSR = 0o100;
pub const IRWXU = 0o700;
pub const IRGRP = 0o040;
pub const IWGRP = 0o020;
pub const IXGRP = 0o010;
pub const IRWXG = 0o070;
pub const IROTH = 0o004;
pub const IWOTH = 0o002;
pub const IXOTH = 0o001;
pub const IRWXO = 0o007;
pub fn ISREG(m: u32) bool {
return m & IFMT == IFREG;
}
pub fn ISDIR(m: u32) bool {
return m & IFMT == IFDIR;
}
pub fn ISCHR(m: u32) bool {
return m & IFMT == IFCHR;
}
pub fn ISBLK(m: u32) bool {
return m & IFMT == IFBLK;
}
pub fn ISFIFO(m: u32) bool {
return m & IFMT == IFIFO;
}
pub fn ISLNK(m: u32) bool {
return m & IFMT == IFLNK;
}
pub fn ISSOCK(m: u32) bool {
return m & IFMT == IFSOCK;
}
};
pub const UTIME = struct {
pub const NOW = 0x3fffffff;
pub const OMIT = 0x3ffffffe;
};
pub const TFD = struct {
pub const NONBLOCK = O.NONBLOCK;
pub const CLOEXEC = O.CLOEXEC;
pub const TIMER_ABSTIME = 1;
pub const TIMER_CANCEL_ON_SET = (1 << 1);
};
pub const winsize = extern struct {
ws_row: u16,
ws_col: u16,
ws_xpixel: u16,
ws_ypixel: u16,
};
/// NSIG is the total number of signals defined.
/// As signal numbers are sequential, NSIG is one greater than the largest defined signal number.
pub const NSIG = if (is_mips) 128 else 65;
pub const sigset_t = [1024 / 32]u32;
pub const all_mask: sigset_t = [_]u32{0xffffffff} ** sigset_t.len;
pub const app_mask: sigset_t = [2]u32{ 0xfffffffc, 0x7fffffff } ++ [_]u32{0xffffffff} ** 30;
pub const k_sigaction = switch (native_arch) {
.mips, .mipsel => extern struct {
flags: c_uint,
handler: ?fn (c_int) callconv(.C) void,
mask: [4]c_ulong,
restorer: fn () callconv(.C) void,
},
.mips64, .mips64el => extern struct {
flags: c_uint,
handler: ?fn (c_int) callconv(.C) void,
mask: [2]c_ulong,
restorer: fn () callconv(.C) void,
},
else => extern struct {
handler: ?fn (c_int) callconv(.C) void,
flags: c_ulong,
restorer: fn () callconv(.C) void,
mask: [2]c_uint,
},
};
/// Renamed from `sigaction` to `Sigaction` to avoid conflict with the syscall.
pub const Sigaction = extern struct {
pub const handler_fn = fn (c_int) callconv(.C) void;
pub const sigaction_fn = fn (c_int, *const siginfo_t, ?*const c_void) callconv(.C) void;
handler: extern union {
handler: ?handler_fn,
sigaction: ?sigaction_fn,
},
mask: sigset_t,
flags: c_uint,
restorer: ?fn () callconv(.C) void = null,
};
pub const empty_sigset = [_]u32{0} ** @typeInfo(sigset_t).Array.len;
pub const SFD = struct {
pub const CLOEXEC = O.CLOEXEC;
pub const NONBLOCK = O.NONBLOCK;
};
pub const signalfd_siginfo = extern struct {
signo: u32,
errno: i32,
code: i32,
pid: u32,
uid: uid_t,
fd: i32,
tid: u32,
band: u32,
overrun: u32,
trapno: u32,
status: i32,
int: i32,
ptr: u64,
utime: u64,
stime: u64,
addr: u64,
addr_lsb: u16,
__pad2: u16,
syscall: i32,
call_addr: u64,
native_arch: u32,
__pad: [28]u8,
};
pub const in_port_t = u16;
pub const sa_family_t = u16;
pub const socklen_t = u32;
pub const sockaddr = extern struct {
family: sa_family_t,
data: [14]u8,
pub const SS_MAXSIZE = 128;
pub const storage = std.x.os.Socket.Address.Native.Storage;
/// IPv4 socket address
pub const in = extern struct {
family: sa_family_t = AF.INET,
port: in_port_t,
addr: u32,
zero: [8]u8 = [8]u8{ 0, 0, 0, 0, 0, 0, 0, 0 },
};
/// IPv6 socket address
pub const in6 = extern struct {
family: sa_family_t = AF.INET6,
port: in_port_t,
flowinfo: u32,
addr: [16]u8,
scope_id: u32,
};
/// UNIX domain socket address
pub const un = extern struct {
family: sa_family_t = AF.UNIX,
path: [108]u8,
};
/// Netlink socket address
pub const nl = extern struct {
family: sa_family_t = AF.NETLINK,
__pad1: c_ushort = 0,
/// port ID
pid: u32,
/// multicast groups mask
groups: u32,
};
pub const xdp = extern struct {
family: u16 = AF.XDP,
flags: u16,
ifindex: u32,
queue_id: u32,
shared_umem_fd: u32,
};
};
pub const mmsghdr = extern struct {
msg_hdr: msghdr,
msg_len: u32,
};
pub const mmsghdr_const = extern struct {
msg_hdr: msghdr_const,
msg_len: u32,
};
pub const epoll_data = extern union {
ptr: usize,
fd: i32,
@"u32": u32,
@"u64": u64,
};
// On x86_64 the structure is packed so that it matches the definition of its
// 32bit counterpart
pub const epoll_event = switch (native_arch) {
.x86_64 => packed struct {
events: u32,
data: epoll_data,
},
else => extern struct {
events: u32,
data: epoll_data,
},
};
pub const VFS_CAP_REVISION_MASK = 0xFF000000;
pub const VFS_CAP_REVISION_SHIFT = 24;
pub const VFS_CAP_FLAGS_MASK = ~VFS_CAP_REVISION_MASK;
pub const VFS_CAP_FLAGS_EFFECTIVE = 0x000001;
pub const VFS_CAP_REVISION_1 = 0x01000000;
pub const VFS_CAP_U32_1 = 1;
pub const XATTR_CAPS_SZ_1 = @sizeOf(u32) * (1 + 2 * VFS_CAP_U32_1);
pub const VFS_CAP_REVISION_2 = 0x02000000;
pub const VFS_CAP_U32_2 = 2;
pub const XATTR_CAPS_SZ_2 = @sizeOf(u32) * (1 + 2 * VFS_CAP_U32_2);
pub const XATTR_CAPS_SZ = XATTR_CAPS_SZ_2;
pub const VFS_CAP_U32 = VFS_CAP_U32_2;
pub const VFS_CAP_REVISION = VFS_CAP_REVISION_2;
pub const vfs_cap_data = extern struct {
//all of these are mandated as little endian
//when on disk.
const Data = struct {
permitted: u32,
inheritable: u32,
};
magic_etc: u32,
data: [VFS_CAP_U32]Data,
};
pub const CAP = struct {
pub const CHOWN = 0;
pub const DAC_OVERRIDE = 1;
pub const DAC_READ_SEARCH = 2;
pub const FOWNER = 3;
pub const FSETID = 4;
pub const KILL = 5;
pub const SETGID = 6;
pub const SETUID = 7;
pub const SETPCAP = 8;
pub const LINUX_IMMUTABLE = 9;
pub const NET_BIND_SERVICE = 10;
pub const NET_BROADCAST = 11;
pub const NET_ADMIN = 12;
pub const NET_RAW = 13;
pub const IPC_LOCK = 14;
pub const IPC_OWNER = 15;
pub const SYS_MODULE = 16;
pub const SYS_RAWIO = 17;
pub const SYS_CHROOT = 18;
pub const SYS_PTRACE = 19;
pub const SYS_PACCT = 20;
pub const SYS_ADMIN = 21;
pub const SYS_BOOT = 22;
pub const SYS_NICE = 23;
pub const SYS_RESOURCE = 24;
pub const SYS_TIME = 25;
pub const SYS_TTY_CONFIG = 26;
pub const MKNOD = 27;
pub const LEASE = 28;
pub const AUDIT_WRITE = 29;
pub const AUDIT_CONTROL = 30;
pub const SETFCAP = 31;
pub const MAC_OVERRIDE = 32;
pub const MAC_ADMIN = 33;
pub const SYSLOG = 34;
pub const WAKE_ALARM = 35;
pub const BLOCK_SUSPEND = 36;
pub const AUDIT_READ = 37;
pub const LAST_CAP = AUDIT_READ;
pub fn valid(x: u8) bool {
return x >= 0 and x <= LAST_CAP;
}
pub fn TO_MASK(cap: u8) u32 {
return @as(u32, 1) << @intCast(u5, cap & 31);
}
pub fn TO_INDEX(cap: u8) u8 {
return cap >> 5;
}
};
pub const cap_t = extern struct {
hdrp: *cap_user_header_t,
datap: *cap_user_data_t,
};
pub const cap_user_header_t = extern struct {
version: u32,
pid: usize,
};
pub const cap_user_data_t = extern struct {
effective: u32,
permitted: u32,
inheritable: u32,
};
pub const inotify_event = extern struct {
wd: i32,
mask: u32,
cookie: u32,
len: u32,
//name: [?]u8,
};
pub const dirent64 = extern struct {
d_ino: u64,
d_off: u64,
d_reclen: u16,
d_type: u8,
d_name: u8, // field address is the address of first byte of name https://github.com/ziglang/zig/issues/173
pub fn reclen(self: dirent64) u16 {
return self.d_reclen;
}
};
pub const dl_phdr_info = extern struct {
dlpi_addr: usize,
dlpi_name: ?[*:0]const u8,
dlpi_phdr: [*]std.elf.Phdr,
dlpi_phnum: u16,
};
pub const CPU_SETSIZE = 128;
pub const cpu_set_t = [CPU_SETSIZE / @sizeOf(usize)]usize;
pub const cpu_count_t = std.meta.Int(.unsigned, std.math.log2(CPU_SETSIZE * 8));
pub fn CPU_COUNT(set: cpu_set_t) cpu_count_t {
var sum: cpu_count_t = 0;
for (set) |x| {
sum += @popCount(usize, x);
}
return sum;
}
pub const MINSIGSTKSZ = switch (native_arch) {
.i386, .x86_64, .arm, .mipsel => 2048,
.aarch64 => 5120,
else => @compileError("MINSIGSTKSZ not defined for this architecture"),
};
pub const SIGSTKSZ = switch (native_arch) {
.i386, .x86_64, .arm, .mipsel => 8192,
.aarch64 => 16384,
else => @compileError("SIGSTKSZ not defined for this architecture"),
};
pub const SS_ONSTACK = 1;
pub const SS_DISABLE = 2;
pub const SS_AUTODISARM = 1 << 31;
pub const stack_t = if (is_mips)
// IRIX compatible stack_t
extern struct {
sp: [*]u8,
size: usize,
flags: i32,
}
else
extern struct {
sp: [*]u8,
flags: i32,
size: usize,
};
pub const sigval = extern union {
int: i32,
ptr: *c_void,
};
const siginfo_fields_union = extern union {
pad: [128 - 2 * @sizeOf(c_int) - @sizeOf(c_long)]u8,
common: extern struct {
first: extern union {
piduid: extern struct {
pid: pid_t,
uid: uid_t,
},
timer: extern struct {
timerid: i32,
overrun: i32,
},
},
second: extern union {
value: sigval,
sigchld: extern struct {
status: i32,
utime: clock_t,
stime: clock_t,
},
},
},
sigfault: extern struct {
addr: *c_void,
addr_lsb: i16,
first: extern union {
addr_bnd: extern struct {
lower: *c_void,
upper: *c_void,
},
pkey: u32,
},
},
sigpoll: extern struct {
band: isize,
fd: i32,
},
sigsys: extern struct {
call_addr: *c_void,
syscall: i32,
native_arch: u32,
},
};
pub const siginfo_t = if (is_mips)
extern struct {
signo: i32,
code: i32,
errno: i32,
fields: siginfo_fields_union,
}
else
extern struct {
signo: i32,
errno: i32,
code: i32,
fields: siginfo_fields_union,
};
pub const io_uring_params = extern struct {
sq_entries: u32,
cq_entries: u32,
flags: u32,
sq_thread_cpu: u32,
sq_thread_idle: u32,
features: u32,
wq_fd: u32,
resv: [3]u32,
sq_off: io_sqring_offsets,
cq_off: io_cqring_offsets,
};
// io_uring_params.features flags
pub const IORING_FEAT_SINGLE_MMAP = 1 << 0;
pub const IORING_FEAT_NODROP = 1 << 1;
pub const IORING_FEAT_SUBMIT_STABLE = 1 << 2;
pub const IORING_FEAT_RW_CUR_POS = 1 << 3;
pub const IORING_FEAT_CUR_PERSONALITY = 1 << 4;
pub const IORING_FEAT_FAST_POLL = 1 << 5;
pub const IORING_FEAT_POLL_32BITS = 1 << 6;
// io_uring_params.flags
/// io_context is polled
pub const IORING_SETUP_IOPOLL = 1 << 0;
/// SQ poll thread
pub const IORING_SETUP_SQPOLL = 1 << 1;
/// sq_thread_cpu is valid
pub const IORING_SETUP_SQ_AFF = 1 << 2;
/// app defines CQ size
pub const IORING_SETUP_CQSIZE = 1 << 3;
/// clamp SQ/CQ ring sizes
pub const IORING_SETUP_CLAMP = 1 << 4;
/// attach to existing wq
pub const IORING_SETUP_ATTACH_WQ = 1 << 5;
/// start with ring disabled
pub const IORING_SETUP_R_DISABLED = 1 << 6;
pub const io_sqring_offsets = extern struct {
/// offset of ring head
head: u32,
/// offset of ring tail
tail: u32,
/// ring mask value
ring_mask: u32,
/// entries in ring
ring_entries: u32,
/// ring flags
flags: u32,
/// number of sqes not submitted
dropped: u32,
/// sqe index array
array: u32,
resv1: u32,
resv2: u64,
};
// io_sqring_offsets.flags
/// needs io_uring_enter wakeup
pub const IORING_SQ_NEED_WAKEUP = 1 << 0;
/// kernel has cqes waiting beyond the cq ring
pub const IORING_SQ_CQ_OVERFLOW = 1 << 1;
pub const io_cqring_offsets = extern struct {
head: u32,
tail: u32,
ring_mask: u32,
ring_entries: u32,
overflow: u32,
cqes: u32,
resv: [2]u64,
};
pub const io_uring_sqe = extern struct {
opcode: IORING_OP,
flags: u8,
ioprio: u16,
fd: i32,
off: u64,
addr: u64,
len: u32,
rw_flags: u32,
user_data: u64,
buf_index: u16,
personality: u16,
splice_fd_in: i32,
__pad2: [2]u64,
};
pub const IOSQE_BIT = enum(u8) {
FIXED_FILE,
IO_DRAIN,
IO_LINK,
IO_HARDLINK,
ASYNC,
BUFFER_SELECT,
_,
};
// io_uring_sqe.flags
/// use fixed fileset
pub const IOSQE_FIXED_FILE = 1 << @enumToInt(IOSQE_BIT.FIXED_FILE);
/// issue after inflight IO
pub const IOSQE_IO_DRAIN = 1 << @enumToInt(IOSQE_BIT.IO_DRAIN);
/// links next sqe
pub const IOSQE_IO_LINK = 1 << @enumToInt(IOSQE_BIT.IO_LINK);
/// like LINK, but stronger
pub const IOSQE_IO_HARDLINK = 1 << @enumToInt(IOSQE_BIT.IO_HARDLINK);
/// always go async
pub const IOSQE_ASYNC = 1 << @enumToInt(IOSQE_BIT.ASYNC);
/// select buffer from buf_group
pub const IOSQE_BUFFER_SELECT = 1 << @enumToInt(IOSQE_BIT.BUFFER_SELECT);
pub const IORING_OP = enum(u8) {
NOP,
READV,
WRITEV,
FSYNC,
READ_FIXED,
WRITE_FIXED,
POLL_ADD,
POLL_REMOVE,
SYNC_FILE_RANGE,
SENDMSG,
RECVMSG,
TIMEOUT,
TIMEOUT_REMOVE,
ACCEPT,
ASYNC_CANCEL,
LINK_TIMEOUT,
CONNECT,
FALLOCATE,
OPENAT,
CLOSE,
FILES_UPDATE,
STATX,
READ,
WRITE,
FADVISE,
MADVISE,
SEND,
RECV,
OPENAT2,
EPOLL_CTL,
SPLICE,
PROVIDE_BUFFERS,
REMOVE_BUFFERS,
TEE,
_,
};
// io_uring_sqe.fsync_flags
pub const IORING_FSYNC_DATASYNC = 1 << 0;
// io_uring_sqe.timeout_flags
pub const IORING_TIMEOUT_ABS = 1 << 0;
// IO completion data structure (Completion Queue Entry)
pub const io_uring_cqe = extern struct {
/// io_uring_sqe.data submission passed back
user_data: u64,
/// result code for this event
res: i32,
flags: u32,
pub fn err(self: io_uring_cqe) E {
if (self.res > -4096 and self.res < 0) {
return @intToEnum(E, -self.res);
}
return .SUCCESS;
}
};
// io_uring_cqe.flags
/// If set, the upper 16 bits are the buffer ID
pub const IORING_CQE_F_BUFFER = 1 << 0;
pub const IORING_OFF_SQ_RING = 0;
pub const IORING_OFF_CQ_RING = 0x8000000;
pub const IORING_OFF_SQES = 0x10000000;
// io_uring_enter flags
pub const IORING_ENTER_GETEVENTS = 1 << 0;
pub const IORING_ENTER_SQ_WAKEUP = 1 << 1;
// io_uring_register opcodes and arguments
pub const IORING_REGISTER = enum(u8) {
REGISTER_BUFFERS,
UNREGISTER_BUFFERS,
REGISTER_FILES,
UNREGISTER_FILES,
REGISTER_EVENTFD,
UNREGISTER_EVENTFD,
REGISTER_FILES_UPDATE,
REGISTER_EVENTFD_ASYNC,
REGISTER_PROBE,
REGISTER_PERSONALITY,
UNREGISTER_PERSONALITY,
REGISTER_RESTRICTIONS,
REGISTER_ENABLE_RINGS,
_,
};
pub const io_uring_files_update = extern struct {
offset: u32,
resv: u32,
fds: u64,
};
pub const IO_URING_OP_SUPPORTED = 1 << 0;
pub const io_uring_probe_op = extern struct {
op: IORING_OP,
resv: u8,
/// IO_URING_OP_* flags
flags: u16,
resv2: u32,
};
pub const io_uring_probe = extern struct {
/// last opcode supported
last_op: IORING_OP,
/// Number of io_uring_probe_op following
ops_len: u8,
resv: u16,
resv2: u32[3],
// Followed by up to `ops_len` io_uring_probe_op structures
};
pub const io_uring_restriction = extern struct {
opcode: u16,
arg: extern union {
/// IORING_RESTRICTION_REGISTER_OP
register_op: IORING_REGISTER,
/// IORING_RESTRICTION_SQE_OP
sqe_op: IORING_OP,
/// IORING_RESTRICTION_SQE_FLAGS_*
sqe_flags: u8,
},
resv: u8,
resv2: u32[3],
};
/// io_uring_restriction->opcode values
pub const IORING_RESTRICTION = enum(u8) {
/// Allow an io_uring_register(2) opcode
REGISTER_OP = 0,
/// Allow an sqe opcode
SQE_OP = 1,
/// Allow sqe flags
SQE_FLAGS_ALLOWED = 2,
/// Require sqe flags (these flags must be set on each submission)
SQE_FLAGS_REQUIRED = 3,
_,
};
pub const utsname = extern struct {
sysname: [64:0]u8,
nodename: [64:0]u8,
release: [64:0]u8,
version: [64:0]u8,
machine: [64:0]u8,
domainname: [64:0]u8,
};
pub const HOST_NAME_MAX = 64;
pub const STATX_TYPE = 0x0001;
pub const STATX_MODE = 0x0002;
pub const STATX_NLINK = 0x0004;
pub const STATX_UID = 0x0008;
pub const STATX_GID = 0x0010;
pub const STATX_ATIME = 0x0020;
pub const STATX_MTIME = 0x0040;
pub const STATX_CTIME = 0x0080;
pub const STATX_INO = 0x0100;
pub const STATX_SIZE = 0x0200;
pub const STATX_BLOCKS = 0x0400;
pub const STATX_BASIC_STATS = 0x07ff;
pub const STATX_BTIME = 0x0800;
pub const STATX_ATTR_COMPRESSED = 0x0004;
pub const STATX_ATTR_IMMUTABLE = 0x0010;
pub const STATX_ATTR_APPEND = 0x0020;
pub const STATX_ATTR_NODUMP = 0x0040;
pub const STATX_ATTR_ENCRYPTED = 0x0800;
pub const STATX_ATTR_AUTOMOUNT = 0x1000;
pub const statx_timestamp = extern struct {
tv_sec: i64,
tv_nsec: u32,
__pad1: u32,
};
/// Renamed to `Statx` to not conflict with the `statx` function.
pub const Statx = extern struct {
/// Mask of bits indicating filled fields
mask: u32,
/// Block size for filesystem I/O
blksize: u32,
/// Extra file attribute indicators
attributes: u64,
/// Number of hard links
nlink: u32,
/// User ID of owner
uid: uid_t,
/// Group ID of owner
gid: gid_t,
/// File type and mode
mode: u16,
__pad1: u16,
/// Inode number
ino: u64,
/// Total size in bytes
size: u64,
/// Number of 512B blocks allocated
blocks: u64,
/// Mask to show what's supported in `attributes`.
attributes_mask: u64,
/// Last access file timestamp
atime: statx_timestamp,
/// Creation file timestamp
btime: statx_timestamp,
/// Last status change file timestamp
ctime: statx_timestamp,
/// Last modification file timestamp
mtime: statx_timestamp,
/// Major ID, if this file represents a device.
rdev_major: u32,
/// Minor ID, if this file represents a device.
rdev_minor: u32,
/// Major ID of the device containing the filesystem where this file resides.
dev_major: u32,
/// Minor ID of the device containing the filesystem where this file resides.
dev_minor: u32,
__pad2: [14]u64,
};
pub const addrinfo = extern struct {
flags: i32,
family: i32,
socktype: i32,
protocol: i32,
addrlen: socklen_t,
addr: ?*sockaddr,
canonname: ?[*:0]u8,
next: ?*addrinfo,
};
pub const IPPORT_RESERVED = 1024;
pub const IPPROTO = struct {
pub const IP = 0;
pub const HOPOPTS = 0;
pub const ICMP = 1;
pub const IGMP = 2;
pub const IPIP = 4;
pub const TCP = 6;
pub const EGP = 8;
pub const PUP = 12;
pub const UDP = 17;
pub const IDP = 22;
pub const TP = 29;
pub const DCCP = 33;
pub const IPV6 = 41;
pub const ROUTING = 43;
pub const FRAGMENT = 44;
pub const RSVP = 46;
pub const GRE = 47;
pub const ESP = 50;
pub const AH = 51;
pub const ICMPV6 = 58;
pub const NONE = 59;
pub const DSTOPTS = 60;
pub const MTP = 92;
pub const BEETPH = 94;
pub const ENCAP = 98;
pub const PIM = 103;
pub const COMP = 108;
pub const SCTP = 132;
pub const MH = 135;
pub const UDPLITE = 136;
pub const MPLS = 137;
pub const RAW = 255;
pub const MAX = 256;
};
pub const RR = struct {
pub const A = 1;
pub const CNAME = 5;
pub const AAAA = 28;
};
pub const tcp_repair_opt = extern struct {
opt_code: u32,
opt_val: u32,
};
pub const tcp_repair_window = extern struct {
snd_wl1: u32,
snd_wnd: u32,
max_window: u32,
rcv_wnd: u32,
rcv_wup: u32,
};
pub const TcpRepairOption = enum {
TCP_NO_QUEUE,
TCP_RECV_QUEUE,
TCP_SEND_QUEUE,
TCP_QUEUES_NR,
};
/// why fastopen failed from client perspective
pub const tcp_fastopen_client_fail = enum {
/// catch-all
TFO_STATUS_UNSPEC,
/// if not in TFO_CLIENT_NO_COOKIE mode
TFO_COOKIE_UNAVAILABLE,
/// SYN-ACK did not ack SYN data
TFO_DATA_NOT_ACKED,
/// SYN-ACK did not ack SYN data after timeout
TFO_SYN_RETRANSMITTED,
};
/// for TCP_INFO socket option
pub const TCPI_OPT_TIMESTAMPS = 1;
pub const TCPI_OPT_SACK = 2;
pub const TCPI_OPT_WSCALE = 4;
/// ECN was negociated at TCP session init
pub const TCPI_OPT_ECN = 8;
/// we received at least one packet with ECT
pub const TCPI_OPT_ECN_SEEN = 16;
/// SYN-ACK acked data in SYN sent or rcvd
pub const TCPI_OPT_SYN_DATA = 32;
pub const nfds_t = usize;
pub const pollfd = extern struct {
fd: fd_t,
events: i16,
revents: i16,
};
pub const POLL = struct {
pub const IN = 0x001;
pub const PRI = 0x002;
pub const OUT = 0x004;
pub const ERR = 0x008;
pub const HUP = 0x010;
pub const NVAL = 0x020;
pub const RDNORM = 0x040;
pub const RDBAND = 0x080;
};
pub const MFD_CLOEXEC = 0x0001;
pub const MFD_ALLOW_SEALING = 0x0002;
pub const MFD_HUGETLB = 0x0004;
pub const MFD_ALL_FLAGS = MFD_CLOEXEC | MFD_ALLOW_SEALING | MFD_HUGETLB;
pub const HUGETLB_FLAG_ENCODE_SHIFT = 26;
pub const HUGETLB_FLAG_ENCODE_MASK = 0x3f;
pub const HUGETLB_FLAG_ENCODE_64KB = 16 << HUGETLB_FLAG_ENCODE_SHIFT;
pub const HUGETLB_FLAG_ENCODE_512KB = 19 << HUGETLB_FLAG_ENCODE_SHIFT;
pub const HUGETLB_FLAG_ENCODE_1MB = 20 << HUGETLB_FLAG_ENCODE_SHIFT;
pub const HUGETLB_FLAG_ENCODE_2MB = 21 << HUGETLB_FLAG_ENCODE_SHIFT;
pub const HUGETLB_FLAG_ENCODE_8MB = 23 << HUGETLB_FLAG_ENCODE_SHIFT;
pub const HUGETLB_FLAG_ENCODE_16MB = 24 << HUGETLB_FLAG_ENCODE_SHIFT;
pub const HUGETLB_FLAG_ENCODE_32MB = 25 << HUGETLB_FLAG_ENCODE_SHIFT;
pub const HUGETLB_FLAG_ENCODE_256MB = 28 << HUGETLB_FLAG_ENCODE_SHIFT;
pub const HUGETLB_FLAG_ENCODE_512MB = 29 << HUGETLB_FLAG_ENCODE_SHIFT;
pub const HUGETLB_FLAG_ENCODE_1GB = 30 << HUGETLB_FLAG_ENCODE_SHIFT;
pub const HUGETLB_FLAG_ENCODE_2GB = 31 << HUGETLB_FLAG_ENCODE_SHIFT;
pub const HUGETLB_FLAG_ENCODE_16GB = 34 << HUGETLB_FLAG_ENCODE_SHIFT;
pub const MFD_HUGE_SHIFT = HUGETLB_FLAG_ENCODE_SHIFT;
pub const MFD_HUGE_MASK = HUGETLB_FLAG_ENCODE_MASK;
pub const MFD_HUGE_64KB = HUGETLB_FLAG_ENCODE_64KB;
pub const MFD_HUGE_512KB = HUGETLB_FLAG_ENCODE_512KB;
pub const MFD_HUGE_1MB = HUGETLB_FLAG_ENCODE_1MB;
pub const MFD_HUGE_2MB = HUGETLB_FLAG_ENCODE_2MB;
pub const MFD_HUGE_8MB = HUGETLB_FLAG_ENCODE_8MB;
pub const MFD_HUGE_16MB = HUGETLB_FLAG_ENCODE_16MB;
pub const MFD_HUGE_32MB = HUGETLB_FLAG_ENCODE_32MB;
pub const MFD_HUGE_256MB = HUGETLB_FLAG_ENCODE_256MB;
pub const MFD_HUGE_512MB = HUGETLB_FLAG_ENCODE_512MB;
pub const MFD_HUGE_1GB = HUGETLB_FLAG_ENCODE_1GB;
pub const MFD_HUGE_2GB = HUGETLB_FLAG_ENCODE_2GB;
pub const MFD_HUGE_16GB = HUGETLB_FLAG_ENCODE_16GB;
pub const rusage = extern struct {
utime: timeval,
stime: timeval,
maxrss: isize,
ixrss: isize,
idrss: isize,
isrss: isize,
minflt: isize,
majflt: isize,
nswap: isize,
inblock: isize,
oublock: isize,
msgsnd: isize,
msgrcv: isize,
nsignals: isize,
nvcsw: isize,
nivcsw: isize,
__reserved: [16]isize = [1]isize{0} ** 16,
pub const SELF = 0;
pub const CHILDREN = -1;
pub const THREAD = 1;
};
pub const cc_t = u8;
pub const speed_t = u32;
pub const tcflag_t = u32;
pub const NCCS = 32;
pub const B0 = 0o0000000;
pub const B50 = 0o0000001;
pub const B75 = 0o0000002;
pub const B110 = 0o0000003;
pub const B134 = 0o0000004;
pub const B150 = 0o0000005;
pub const B200 = 0o0000006;
pub const B300 = 0o0000007;
pub const B600 = 0o0000010;
pub const B1200 = 0o0000011;
pub const B1800 = 0o0000012;
pub const B2400 = 0o0000013;
pub const B4800 = 0o0000014;
pub const B9600 = 0o0000015;
pub const B19200 = 0o0000016;
pub const B38400 = 0o0000017;
pub const BOTHER = 0o0010000;
pub const B57600 = 0o0010001;
pub const B115200 = 0o0010002;
pub const B230400 = 0o0010003;
pub const B460800 = 0o0010004;
pub const B500000 = 0o0010005;
pub const B576000 = 0o0010006;
pub const B921600 = 0o0010007;
pub const B1000000 = 0o0010010;
pub const B1152000 = 0o0010011;
pub const B1500000 = 0o0010012;
pub const B2000000 = 0o0010013;
pub const B2500000 = 0o0010014;
pub const B3000000 = 0o0010015;
pub const B3500000 = 0o0010016;
pub const B4000000 = 0o0010017;
pub const V = switch (native_arch) {
.powerpc, .powerpc64, .powerpc64le => struct {
pub const INTR = 0;
pub const QUIT = 1;
pub const ERASE = 2;
pub const KILL = 3;
pub const EOF = 4;
pub const MIN = 5;
pub const EOL = 6;
pub const TIME = 7;
pub const EOL2 = 8;
pub const SWTC = 9;
pub const WERASE = 10;
pub const REPRINT = 11;
pub const SUSP = 12;
pub const START = 13;
pub const STOP = 14;
pub const LNEXT = 15;
pub const DISCARD = 16;
},
.sparc, .sparcv9 => struct {
pub const INTR = 0;
pub const QUIT = 1;
pub const ERASE = 2;
pub const KILL = 3;
pub const EOF = 4;
pub const EOL = 5;
pub const EOL2 = 6;
pub const SWTC = 7;
pub const START = 8;
pub const STOP = 9;
pub const SUSP = 10;
pub const DSUSP = 11;
pub const REPRINT = 12;
pub const DISCARD = 13;
pub const WERASE = 14;
pub const LNEXT = 15;
pub const MIN = EOF;
pub const TIME = EOL;
},
.mips, .mipsel, .mips64, .mips64el => struct {
pub const INTR = 0;
pub const QUIT = 1;
pub const ERASE = 2;
pub const KILL = 3;
pub const MIN = 4;
pub const TIME = 5;
pub const EOL2 = 6;
pub const SWTC = 7;
pub const SWTCH = 7;
pub const START = 8;
pub const STOP = 9;
pub const SUSP = 10;
pub const REPRINT = 12;
pub const DISCARD = 13;
pub const WERASE = 14;
pub const LNEXT = 15;
pub const EOF = 16;
pub const EOL = 17;
},
else => struct {
pub const INTR = 0;
pub const QUIT = 1;
pub const ERASE = 2;
pub const KILL = 3;
pub const EOF = 4;
pub const TIME = 5;
pub const MIN = 6;
pub const SWTC = 7;
pub const START = 8;
pub const STOP = 9;
pub const SUSP = 10;
pub const EOL = 11;
pub const REPRINT = 12;
pub const DISCARD = 13;
pub const WERASE = 14;
pub const LNEXT = 15;
pub const EOL2 = 16;
},
};
pub const IGNBRK = 1;
pub const BRKINT = 2;
pub const IGNPAR = 4;
pub const PARMRK = 8;
pub const INPCK = 16;
pub const ISTRIP = 32;
pub const INLCR = 64;
pub const IGNCR = 128;
pub const ICRNL = 256;
pub const IUCLC = 512;
pub const IXON = 1024;
pub const IXANY = 2048;
pub const IXOFF = 4096;
pub const IMAXBEL = 8192;
pub const IUTF8 = 16384;
pub const OPOST = 1;
pub const OLCUC = 2;
pub const ONLCR = 4;
pub const OCRNL = 8;
pub const ONOCR = 16;
pub const ONLRET = 32;
pub const OFILL = 64;
pub const OFDEL = 128;
pub const VTDLY = 16384;
pub const VT0 = 0;
pub const VT1 = 16384;
pub const CSIZE = 48;
pub const CS5 = 0;
pub const CS6 = 16;
pub const CS7 = 32;
pub const CS8 = 48;
pub const CSTOPB = 64;
pub const CREAD = 128;
pub const PARENB = 256;
pub const PARODD = 512;
pub const HUPCL = 1024;
pub const CLOCAL = 2048;
pub const ISIG = 1;
pub const ICANON = 2;
pub const ECHO = 8;
pub const ECHOE = 16;
pub const ECHOK = 32;
pub const ECHONL = 64;
pub const NOFLSH = 128;
pub const TOSTOP = 256;
pub const IEXTEN = 32768;
pub const TCSA = enum(c_uint) {
NOW,
DRAIN,
FLUSH,
_,
};
pub const termios = extern struct {
iflag: tcflag_t,
oflag: tcflag_t,
cflag: tcflag_t,
lflag: tcflag_t,
line: cc_t,
cc: [NCCS]cc_t,
ispeed: speed_t,
ospeed: speed_t,
};
pub const SIOCGIFINDEX = 0x8933;
pub const IFNAMESIZE = 16;
pub const ifmap = extern struct {
mem_start: u32,
mem_end: u32,
base_addr: u16,
irq: u8,
dma: u8,
port: u8,
};
pub const ifreq = extern struct {
ifrn: extern union {
name: [IFNAMESIZE]u8,
},
ifru: extern union {
addr: sockaddr,
dstaddr: sockaddr,
broadaddr: sockaddr,
netmask: sockaddr,
hwaddr: sockaddr,
flags: i16,
ivalue: i32,
mtu: i32,
map: ifmap,
slave: [IFNAMESIZE - 1:0]u8,
newname: [IFNAMESIZE - 1:0]u8,
data: ?[*]u8,
},
};
// doc comments copied from musl
pub const rlimit_resource = enum(c_int) {
/// Per-process CPU limit, in seconds.
CPU,
/// Largest file that can be created, in bytes.
FSIZE,
/// Maximum size of data segment, in bytes.
DATA,
/// Maximum size of stack segment, in bytes.
STACK,
/// Largest core file that can be created, in bytes.
CORE,
/// Largest resident set size, in bytes.
/// This affects swapping; processes that are exceeding their
/// resident set size will be more likely to have physical memory
/// taken from them.
RSS,
/// Number of processes.
NPROC,
/// Number of open files.
NOFILE,
/// Locked-in-memory address space.
MEMLOCK,
/// Address space limit.
AS,
/// Maximum number of file locks.
LOCKS,
/// Maximum number of pending signals.
SIGPENDING,
/// Maximum bytes in POSIX message queues.
MSGQUEUE,
/// Maximum nice priority allowed to raise to.
/// Nice levels 19 .. -20 correspond to 0 .. 39
/// values of this resource limit.
NICE,
/// Maximum realtime priority allowed for non-priviledged
/// processes.
RTPRIO,
/// Maximum CPU time in µs that a process scheduled under a real-time
/// scheduling policy may consume without making a blocking system
/// call before being forcibly descheduled.
RTTIME,
_,
};
pub const rlim_t = u64;
pub const RLIM = struct {
/// No limit
pub const INFINITY = ~@as(rlim_t, 0);
pub const SAVED_MAX = INFINITY;
pub const SAVED_CUR = INFINITY;
};
pub const rlimit = extern struct {
/// Soft limit
cur: rlim_t,
/// Hard limit
max: rlim_t,
};
pub const MADV = struct {
pub const NORMAL = 0;
pub const RANDOM = 1;
pub const SEQUENTIAL = 2;
pub const WILLNEED = 3;
pub const DONTNEED = 4;
pub const FREE = 8;
pub const REMOVE = 9;
pub const DONTFORK = 10;
pub const DOFORK = 11;
pub const MERGEABLE = 12;
pub const UNMERGEABLE = 13;
pub const HUGEPAGE = 14;
pub const NOHUGEPAGE = 15;
pub const DONTDUMP = 16;
pub const DODUMP = 17;
pub const WIPEONFORK = 18;
pub const KEEPONFORK = 19;
pub const COLD = 20;
pub const PAGEOUT = 21;
pub const HWPOISON = 100;
pub const SOFT_OFFLINE = 101;
};
pub const POSIX_FADV = switch (native_arch) {
.s390x => if (@typeInfo(usize).Int.bits == 64) struct {
pub const NORMAL = 0;
pub const RANDOM = 1;
pub const SEQUENTIAL = 2;
pub const WILLNEED = 3;
pub const DONTNEED = 6;
pub const NOREUSE = 7;
} else struct {
pub const NORMAL = 0;
pub const RANDOM = 1;
pub const SEQUENTIAL = 2;
pub const WILLNEED = 3;
pub const DONTNEED = 4;
pub const NOREUSE = 5;
},
else => struct {
pub const NORMAL = 0;
pub const RANDOM = 1;
pub const SEQUENTIAL = 2;
pub const WILLNEED = 3;
pub const DONTNEED = 4;
pub const NOREUSE = 5;
},
};
/// The timespec struct used by the kernel.
pub const kernel_timespec = if (@sizeOf(usize) >= 8) timespec else extern struct {
tv_sec: i64,
tv_nsec: i64,
};
pub const timespec = extern struct {
tv_sec: isize,
tv_nsec: isize,
};
pub const XDP = struct {
pub const SHARED_UMEM = (1 << 0);
pub const COPY = (1 << 1);
pub const ZEROCOPY = (1 << 2);
pub const UMEM_UNALIGNED_CHUNK_FLAG = (1 << 0);
pub const USE_NEED_WAKEUP = (1 << 3);
pub const MMAP_OFFSETS = 1;
pub const RX_RING = 2;
pub const TX_RING = 3;
pub const UMEM_REG = 4;
pub const UMEM_FILL_RING = 5;
pub const UMEM_COMPLETION_RING = 6;
pub const STATISTICS = 7;
pub const OPTIONS = 8;
pub const OPTIONS_ZEROCOPY = (1 << 0);
pub const PGOFF_RX_RING = 0;
pub const PGOFF_TX_RING = 0x80000000;
pub const UMEM_PGOFF_FILL_RING = 0x100000000;
pub const UMEM_PGOFF_COMPLETION_RING = 0x180000000;
};
pub const xdp_ring_offset = extern struct {
producer: u64,
consumer: u64,
desc: u64,
flags: u64,
};
pub const xdp_mmap_offsets = extern struct {
rx: xdp_ring_offset,
tx: xdp_ring_offset,
fr: xdp_ring_offset,
cr: xdp_ring_offset,
};
pub const xdp_umem_reg = extern struct {
addr: u64,
len: u64,
chunk_size: u32,
headroom: u32,
flags: u32,
};
pub const xdp_statistics = extern struct {
rx_dropped: u64,
rx_invalid_descs: u64,
tx_invalid_descs: u64,
rx_ring_full: u64,
rx_fill_ring_empty_descs: u64,
tx_ring_empty_descs: u64,
};
pub const xdp_options = extern struct {
flags: u32,
};
pub const XSK_UNALIGNED_BUF_OFFSET_SHIFT = 48;
pub const XSK_UNALIGNED_BUF_ADDR_MASK = (1 << XSK_UNALIGNED_BUF_OFFSET_SHIFT) - 1;
pub const xdp_desc = extern struct {
addr: u64,
len: u32,
options: u32,
};
fn issecure_mask(comptime x: comptime_int) comptime_int {
return 1 << x;
}
pub const SECUREBITS_DEFAULT = 0x00000000;
pub const SECURE_NOROOT = 0;
pub const SECURE_NOROOT_LOCKED = 1;
pub const SECBIT_NOROOT = issecure_mask(SECURE_NOROOT);
pub const SECBIT_NOROOT_LOCKED = issecure_mask(SECURE_NOROOT_LOCKED);
pub const SECURE_NO_SETUID_FIXUP = 2;
pub const SECURE_NO_SETUID_FIXUP_LOCKED = 3;
pub const SECBIT_NO_SETUID_FIXUP = issecure_mask(SECURE_NO_SETUID_FIXUP);
pub const SECBIT_NO_SETUID_FIXUP_LOCKED = issecure_mask(SECURE_NO_SETUID_FIXUP_LOCKED);
pub const SECURE_KEEP_CAPS = 4;
pub const SECURE_KEEP_CAPS_LOCKED = 5;
pub const SECBIT_KEEP_CAPS = issecure_mask(SECURE_KEEP_CAPS);
pub const SECBIT_KEEP_CAPS_LOCKED = issecure_mask(SECURE_KEEP_CAPS_LOCKED);
pub const SECURE_NO_CAP_AMBIENT_RAISE = 6;
pub const SECURE_NO_CAP_AMBIENT_RAISE_LOCKED = 7;
pub const SECBIT_NO_CAP_AMBIENT_RAISE = issecure_mask(SECURE_NO_CAP_AMBIENT_RAISE);
pub const SECBIT_NO_CAP_AMBIENT_RAISE_LOCKED = issecure_mask(SECURE_NO_CAP_AMBIENT_RAISE_LOCKED);
pub const SECURE_ALL_BITS = issecure_mask(SECURE_NOROOT) |
issecure_mask(SECURE_NO_SETUID_FIXUP) |
issecure_mask(SECURE_KEEP_CAPS) |
issecure_mask(SECURE_NO_CAP_AMBIENT_RAISE);
pub const SECURE_ALL_LOCKS = SECURE_ALL_BITS << 1;
pub const PR = enum(i32) {
SET_PDEATHSIG = 1,
GET_PDEATHSIG = 2,
GET_DUMPABLE = 3,
SET_DUMPABLE = 4,
GET_UNALIGN = 5,
SET_UNALIGN = 6,
GET_KEEPCAPS = 7,
SET_KEEPCAPS = 8,
GET_FPEMU = 9,
SET_FPEMU = 10,
GET_FPEXC = 11,
SET_FPEXC = 12,
GET_TIMING = 13,
SET_TIMING = 14,
SET_NAME = 15,
GET_NAME = 16,
GET_ENDIAN = 19,
SET_ENDIAN = 20,
GET_SECCOMP = 21,
SET_SECCOMP = 22,
CAPBSET_READ = 23,
CAPBSET_DROP = 24,
GET_TSC = 25,
SET_TSC = 26,
GET_SECUREBITS = 27,
SET_SECUREBITS = 28,
SET_TIMERSLACK = 29,
GET_TIMERSLACK = 30,
TASK_PERF_EVENTS_DISABLE = 31,
TASK_PERF_EVENTS_ENABLE = 32,
MCE_KILL = 33,
MCE_KILL_GET = 34,
SET_MM = 35,
SET_PTRACER = 0x59616d61,
SET_CHILD_SUBREAPER = 36,
GET_CHILD_SUBREAPER = 37,
SET_NO_NEW_PRIVS = 38,
GET_NO_NEW_PRIVS = 39,
GET_TID_ADDRESS = 40,
SET_THP_DISABLE = 41,
GET_THP_DISABLE = 42,
MPX_ENABLE_MANAGEMENT = 43,
MPX_DISABLE_MANAGEMENT = 44,
SET_FP_MODE = 45,
GET_FP_MODE = 46,
CAP_AMBIENT = 47,
SVE_SET_VL = 50,
SVE_GET_VL = 51,
GET_SPECULATION_CTRL = 52,
SET_SPECULATION_CTRL = 53,
_,
pub const UNALIGN_NOPRINT = 1;
pub const UNALIGN_SIGBUS = 2;
pub const FPEMU_NOPRINT = 1;
pub const FPEMU_SIGFPE = 2;
pub const FP_EXC_SW_ENABLE = 0x80;
pub const FP_EXC_DIV = 0x010000;
pub const FP_EXC_OVF = 0x020000;
pub const FP_EXC_UND = 0x040000;
pub const FP_EXC_RES = 0x080000;
pub const FP_EXC_INV = 0x100000;
pub const FP_EXC_DISABLED = 0;
pub const FP_EXC_NONRECOV = 1;
pub const FP_EXC_ASYNC = 2;
pub const FP_EXC_PRECISE = 3;
pub const TIMING_STATISTICAL = 0;
pub const TIMING_TIMESTAMP = 1;
pub const ENDIAN_BIG = 0;
pub const ENDIAN_LITTLE = 1;
pub const ENDIAN_PPC_LITTLE = 2;
pub const TSC_ENABLE = 1;
pub const TSC_SIGSEGV = 2;
pub const MCE_KILL_CLEAR = 0;
pub const MCE_KILL_SET = 1;
pub const MCE_KILL_LATE = 0;
pub const MCE_KILL_EARLY = 1;
pub const MCE_KILL_DEFAULT = 2;
pub const SET_MM_START_CODE = 1;
pub const SET_MM_END_CODE = 2;
pub const SET_MM_START_DATA = 3;
pub const SET_MM_END_DATA = 4;
pub const SET_MM_START_STACK = 5;
pub const SET_MM_START_BRK = 6;
pub const SET_MM_BRK = 7;
pub const SET_MM_ARG_START = 8;
pub const SET_MM_ARG_END = 9;
pub const SET_MM_ENV_START = 10;
pub const SET_MM_ENV_END = 11;
pub const SET_MM_AUXV = 12;
pub const SET_MM_EXE_FILE = 13;
pub const SET_MM_MAP = 14;
pub const SET_MM_MAP_SIZE = 15;
pub const SET_PTRACER_ANY = std.math.maxInt(c_ulong);
pub const FP_MODE_FR = 1 << 0;
pub const FP_MODE_FRE = 1 << 1;
pub const CAP_AMBIENT_IS_SET = 1;
pub const CAP_AMBIENT_RAISE = 2;
pub const CAP_AMBIENT_LOWER = 3;
pub const CAP_AMBIENT_CLEAR_ALL = 4;
pub const SVE_SET_VL_ONEXEC = 1 << 18;
pub const SVE_VL_LEN_MASK = 0xffff;
pub const SVE_VL_INHERIT = 1 << 17;
pub const SPEC_STORE_BYPASS = 0;
pub const SPEC_NOT_AFFECTED = 0;
pub const SPEC_PRCTL = 1 << 0;
pub const SPEC_ENABLE = 1 << 1;
pub const SPEC_DISABLE = 1 << 2;
pub const SPEC_FORCE_DISABLE = 1 << 3;
};
pub const prctl_mm_map = extern struct {
start_code: u64,
end_code: u64,
start_data: u64,
end_data: u64,
start_brk: u64,
brk: u64,
start_stack: u64,
arg_start: u64,
arg_end: u64,
env_start: u64,
env_end: u64,
auxv: *u64,
auxv_size: u32,
exe_fd: u32,
};
pub const NETLINK = struct {
/// Routing/device hook
pub const ROUTE = 0;
/// Unused number
pub const UNUSED = 1;
/// Reserved for user mode socket protocols
pub const USERSOCK = 2;
/// Unused number, formerly ip_queue
pub const FIREWALL = 3;
/// socket monitoring
pub const SOCK_DIAG = 4;
/// netfilter/iptables ULOG
pub const NFLOG = 5;
/// ipsec
pub const XFRM = 6;
/// SELinux event notifications
pub const SELINUX = 7;
/// Open-iSCSI
pub const ISCSI = 8;
/// auditing
pub const AUDIT = 9;
pub const FIB_LOOKUP = 10;
pub const CONNECTOR = 11;
/// netfilter subsystem
pub const NETFILTER = 12;
pub const IP6_FW = 13;
/// DECnet routing messages
pub const DNRTMSG = 14;
/// Kernel messages to userspace
pub const KOBJECT_UEVENT = 15;
pub const GENERIC = 16;
// leave room for NETLINK_DM (DM Events)
/// SCSI Transports
pub const SCSITRANSPORT = 18;
pub const ECRYPTFS = 19;
pub const RDMA = 20;
/// Crypto layer
pub const CRYPTO = 21;
/// SMC monitoring
pub const SMC = 22;
};
// Flags values
/// It is request message.
pub const NLM_F_REQUEST = 0x01;
/// Multipart message, terminated by NLMSG_DONE
pub const NLM_F_MULTI = 0x02;
/// Reply with ack, with zero or error code
pub const NLM_F_ACK = 0x04;
/// Echo this request
pub const NLM_F_ECHO = 0x08;
/// Dump was inconsistent due to sequence change
pub const NLM_F_DUMP_INTR = 0x10;
/// Dump was filtered as requested
pub const NLM_F_DUMP_FILTERED = 0x20;
// Modifiers to GET request
/// specify tree root
pub const NLM_F_ROOT = 0x100;
/// return all matching
pub const NLM_F_MATCH = 0x200;
/// atomic GET
pub const NLM_F_ATOMIC = 0x400;
pub const NLM_F_DUMP = NLM_F_ROOT | NLM_F_MATCH;
// Modifiers to NEW request
/// Override existing
pub const NLM_F_REPLACE = 0x100;
/// Do not touch, if it exists
pub const NLM_F_EXCL = 0x200;
/// Create, if it does not exist
pub const NLM_F_CREATE = 0x400;
/// Add to end of list
pub const NLM_F_APPEND = 0x800;
// Modifiers to DELETE request
/// Do not delete recursively
pub const NLM_F_NONREC = 0x100;
// Flags for ACK message
/// request was capped
pub const NLM_F_CAPPED = 0x100;
/// extended ACK TVLs were included
pub const NLM_F_ACK_TLVS = 0x200;
pub const NetlinkMessageType = enum(u16) {
/// < 0x10: reserved control messages
pub const MIN_TYPE = 0x10;
/// Nothing.
NOOP = 0x1,
/// Error
ERROR = 0x2,
/// End of a dump
DONE = 0x3,
/// Data lost
OVERRUN = 0x4,
// rtlink types
RTM_NEWLINK = 16,
RTM_DELLINK,
RTM_GETLINK,
RTM_SETLINK,
RTM_NEWADDR = 20,
RTM_DELADDR,
RTM_GETADDR,
RTM_NEWROUTE = 24,
RTM_DELROUTE,
RTM_GETROUTE,
RTM_NEWNEIGH = 28,
RTM_DELNEIGH,
RTM_GETNEIGH,
RTM_NEWRULE = 32,
RTM_DELRULE,
RTM_GETRULE,
RTM_NEWQDISC = 36,
RTM_DELQDISC,
RTM_GETQDISC,
RTM_NEWTCLASS = 40,
RTM_DELTCLASS,
RTM_GETTCLASS,
RTM_NEWTFILTER = 44,
RTM_DELTFILTER,
RTM_GETTFILTER,
RTM_NEWACTION = 48,
RTM_DELACTION,
RTM_GETACTION,
RTM_NEWPREFIX = 52,
RTM_GETMULTICAST = 58,
RTM_GETANYCAST = 62,
RTM_NEWNEIGHTBL = 64,
RTM_GETNEIGHTBL = 66,
RTM_SETNEIGHTBL,
RTM_NEWNDUSEROPT = 68,
RTM_NEWADDRLABEL = 72,
RTM_DELADDRLABEL,
RTM_GETADDRLABEL,
RTM_GETDCB = 78,
RTM_SETDCB,
RTM_NEWNETCONF = 80,
RTM_DELNETCONF,
RTM_GETNETCONF = 82,
RTM_NEWMDB = 84,
RTM_DELMDB = 85,
RTM_GETMDB = 86,
RTM_NEWNSID = 88,
RTM_DELNSID = 89,
RTM_GETNSID = 90,
RTM_NEWSTATS = 92,
RTM_GETSTATS = 94,
RTM_NEWCACHEREPORT = 96,
RTM_NEWCHAIN = 100,
RTM_DELCHAIN,
RTM_GETCHAIN,
RTM_NEWNEXTHOP = 104,
RTM_DELNEXTHOP,
RTM_GETNEXTHOP,
_,
};
/// Netlink message header
/// Specified in RFC 3549 Section 2.3.2
pub const nlmsghdr = extern struct {
/// Length of message including header
len: u32,
/// Message content
@"type": NetlinkMessageType,
/// Additional flags
flags: u16,
/// Sequence number
seq: u32,
/// Sending process port ID
pid: u32,
};
pub const ifinfomsg = extern struct {
family: u8,
__pad1: u8 = 0,
/// ARPHRD_*
@"type": c_ushort,
/// Link index
index: c_int,
/// IFF_* flags
flags: c_uint,
/// IFF_* change mask
change: c_uint,
};
pub const rtattr = extern struct {
/// Length of option
len: c_ushort,
/// Type of option
@"type": IFLA,
pub const ALIGNTO = 4;
};
pub const IFLA = enum(c_ushort) {
UNSPEC,
ADDRESS,
BROADCAST,
IFNAME,
MTU,
LINK,
QDISC,
STATS,
COST,
PRIORITY,
MASTER,
/// Wireless Extension event
WIRELESS,
/// Protocol specific information for a link
PROTINFO,
TXQLEN,
MAP,
WEIGHT,
OPERSTATE,
LINKMODE,
LINKINFO,
NET_NS_PID,
IFALIAS,
/// Number of VFs if device is SR-IOV PF
NUM_VF,
VFINFO_LIST,
STATS64,
VF_PORTS,
PORT_SELF,
AF_SPEC,
/// Group the device belongs to
GROUP,
NET_NS_FD,
/// Extended info mask, VFs, etc
EXT_MASK,
/// Promiscuity count: > 0 means acts PROMISC
PROMISCUITY,
NUM_TX_QUEUES,
NUM_RX_QUEUES,
CARRIER,
PHYS_PORT_ID,
CARRIER_CHANGES,
PHYS_SWITCH_ID,
LINK_NETNSID,
PHYS_PORT_NAME,
PROTO_DOWN,
GSO_MAX_SEGS,
GSO_MAX_SIZE,
PAD,
XDP,
EVENT,
NEW_NETNSID,
IF_NETNSID,
CARRIER_UP_COUNT,
CARRIER_DOWN_COUNT,
NEW_IFINDEX,
MIN_MTU,
MAX_MTU,
_,
pub const TARGET_NETNSID: IFLA = .IF_NETNSID;
};
pub const rtnl_link_ifmap = extern struct {
mem_start: u64,
mem_end: u64,
base_addr: u64,
irq: u16,
dma: u8,
port: u8,
};
pub const rtnl_link_stats = extern struct {
/// total packets received
rx_packets: u32,
/// total packets transmitted
tx_packets: u32,
/// total bytes received
rx_bytes: u32,
/// total bytes transmitted
tx_bytes: u32,
/// bad packets received
rx_errors: u32,
/// packet transmit problems
tx_errors: u32,
/// no space in linux buffers
rx_dropped: u32,
/// no space available in linux
tx_dropped: u32,
/// multicast packets received
multicast: u32,
collisions: u32,
// detailed rx_errors
rx_length_errors: u32,
/// receiver ring buff overflow
rx_over_errors: u32,
/// recved pkt with crc error
rx_crc_errors: u32,
/// recv'd frame alignment error
rx_frame_errors: u32,
/// recv'r fifo overrun
rx_fifo_errors: u32,
/// receiver missed packet
rx_missed_errors: u32,
// detailed tx_errors
tx_aborted_errors: u32,
tx_carrier_errors: u32,
tx_fifo_errors: u32,
tx_heartbeat_errors: u32,
tx_window_errors: u32,
// for cslip etc
rx_compressed: u32,
tx_compressed: u32,
/// dropped, no handler found
rx_nohandler: u32,
};
pub const rtnl_link_stats64 = extern struct {
/// total packets received
rx_packets: u64,
/// total packets transmitted
tx_packets: u64,
/// total bytes received
rx_bytes: u64,
/// total bytes transmitted
tx_bytes: u64,
/// bad packets received
rx_errors: u64,
/// packet transmit problems
tx_errors: u64,
/// no space in linux buffers
rx_dropped: u64,
/// no space available in linux
tx_dropped: u64,
/// multicast packets received
multicast: u64,
collisions: u64,
// detailed rx_errors
rx_length_errors: u64,
/// receiver ring buff overflow
rx_over_errors: u64,
/// recved pkt with crc error
rx_crc_errors: u64,
/// recv'd frame alignment error
rx_frame_errors: u64,
/// recv'r fifo overrun
rx_fifo_errors: u64,
/// receiver missed packet
rx_missed_errors: u64,
// detailed tx_errors
tx_aborted_errors: u64,
tx_carrier_errors: u64,
tx_fifo_errors: u64,
tx_heartbeat_errors: u64,
tx_window_errors: u64,
// for cslip etc
rx_compressed: u64,
tx_compressed: u64,
/// dropped, no handler found
rx_nohandler: u64,
};
pub const perf_event_attr = extern struct {
/// Major type: hardware/software/tracepoint/etc.
type: PERF.TYPE = undefined,
/// Size of the attr structure, for fwd/bwd compat.
size: u32 = @sizeOf(perf_event_attr),
/// Type specific configuration information.
config: u64 = 0,
sample_period_or_freq: u64 = 0,
sample_type: u64 = 0,
read_format: u64 = 0,
flags: packed struct {
/// off by default
disabled: bool = false,
/// children inherit it
inherit: bool = false,
/// must always be on PMU
pinned: bool = false,
/// only group on PMU
exclusive: bool = false,
/// don't count user
exclude_user: bool = false,
/// ditto kernel
exclude_kernel: bool = false,
/// ditto hypervisor
exclude_hv: bool = false,
/// don't count when idle
exclude_idle: bool = false,
/// include mmap data
mmap: bool = false,
/// include comm data
comm: bool = false,
/// use freq, not period
freq: bool = false,
/// per task counts
inherit_stat: bool = false,
/// next exec enables
enable_on_exec: bool = false,
/// trace fork/exit
task: bool = false,
/// wakeup_watermark
watermark: bool = false,
/// precise_ip:
///
/// 0 - SAMPLE_IP can have arbitrary skid
/// 1 - SAMPLE_IP must have constant skid
/// 2 - SAMPLE_IP requested to have 0 skid
/// 3 - SAMPLE_IP must have 0 skid
///
/// See also PERF_RECORD_MISC_EXACT_IP
/// skid constraint
precise_ip: u2 = 0,
/// non-exec mmap data
mmap_data: bool = false,
/// sample_type all events
sample_id_all: bool = false,
/// don't count in host
exclude_host: bool = false,
/// don't count in guest
exclude_guest: bool = false,
/// exclude kernel callchains
exclude_callchain_kernel: bool = false,
/// exclude user callchains
exclude_callchain_user: bool = false,
/// include mmap with inode data
mmap2: bool = false,
/// flag comm events that are due to an exec
comm_exec: bool = false,
/// use @clockid for time fields
use_clockid: bool = false,
/// context switch data
context_switch: bool = false,
/// Write ring buffer from end to beginning
write_backward: bool = false,
/// include namespaces data
namespaces: bool = false,
__reserved_1: u35 = 0,
} = .{},
/// wakeup every n events, or
/// bytes before wakeup
wakeup_events_or_watermark: u32 = 0,
bp_type: u32 = 0,
/// This field is also used for:
/// bp_addr
/// kprobe_func for perf_kprobe
/// uprobe_path for perf_uprobe
config1: u64 = 0,
/// This field is also used for:
/// bp_len
/// kprobe_addr when kprobe_func == null
/// probe_offset for perf_[k,u]probe
config2: u64 = 0,
/// enum perf_branch_sample_type
branch_sample_type: u64 = 0,
/// Defines set of user regs to dump on samples.
/// See asm/perf_regs.h for details.
sample_regs_user: u64 = 0,
/// Defines size of the user stack to dump on samples.
sample_stack_user: u32 = 0,
clockid: i32 = 0,
/// Defines set of regs to dump for each sample
/// state captured on:
/// - precise = 0: PMU interrupt
/// - precise > 0: sampled instruction
///
/// See asm/perf_regs.h for details.
sample_regs_intr: u64 = 0,
/// Wakeup watermark for AUX area
aux_watermark: u32 = 0,
sample_max_stack: u16 = 0,
/// Align to u64
__reserved_2: u16 = 0,
};
pub const PERF = struct {
pub const TYPE = enum(u32) {
HARDWARE,
SOFTWARE,
TRACEPOINT,
HW_CACHE,
RAW,
BREAKPOINT,
MAX,
};
pub const COUNT = struct {
pub const HW = enum(u32) {
CPU_CYCLES,
INSTRUCTIONS,
CACHE_REFERENCES,
CACHE_MISSES,
BRANCH_INSTRUCTIONS,
BRANCH_MISSES,
BUS_CYCLES,
STALLED_CYCLES_FRONTEND,
STALLED_CYCLES_BACKEND,
REF_CPU_CYCLES,
MAX,
pub const CACHE = enum(u32) {
L1D,
L1I,
LL,
DTLB,
ITLB,
BPU,
NODE,
MAX,
pub const OP = enum(u32) {
READ,
WRITE,
PREFETCH,
MAX,
};
pub const RESULT = enum(u32) {
ACCESS,
MISS,
MAX,
};
};
};
pub const SW = enum(u32) {
CPU_CLOCK,
TASK_CLOCK,
PAGE_FAULTS,
CONTEXT_SWITCHES,
CPU_MIGRATIONS,
PAGE_FAULTS_MIN,
PAGE_FAULTS_MAJ,
ALIGNMENT_FAULTS,
EMULATION_FAULTS,
DUMMY,
BPF_OUTPUT,
MAX,
};
};
pub const SAMPLE = struct {
pub const IP = 1;
pub const TID = 2;
pub const TIME = 4;
pub const ADDR = 8;
pub const READ = 16;
pub const CALLCHAIN = 32;
pub const ID = 64;
pub const CPU = 128;
pub const PERIOD = 256;
pub const STREAM_ID = 512;
pub const RAW = 1024;
pub const BRANCH_STACK = 2048;
pub const REGS_USER = 4096;
pub const STACK_USER = 8192;
pub const WEIGHT = 16384;
pub const DATA_SRC = 32768;
pub const IDENTIFIER = 65536;
pub const TRANSACTION = 131072;
pub const REGS_INTR = 262144;
pub const PHYS_ADDR = 524288;
pub const MAX = 1048576;
pub const BRANCH = struct {
pub const USER = 1 << 0;
pub const KERNEL = 1 << 1;
pub const HV = 1 << 2;
pub const ANY = 1 << 3;
pub const ANY_CALL = 1 << 4;
pub const ANY_RETURN = 1 << 5;
pub const IND_CALL = 1 << 6;
pub const ABORT_TX = 1 << 7;
pub const IN_TX = 1 << 8;
pub const NO_TX = 1 << 9;
pub const COND = 1 << 10;
pub const CALL_STACK = 1 << 11;
pub const IND_JUMP = 1 << 12;
pub const CALL = 1 << 13;
pub const NO_FLAGS = 1 << 14;
pub const NO_CYCLES = 1 << 15;
pub const TYPE_SAVE = 1 << 16;
pub const MAX = 1 << 17;
};
};
pub const FLAG = struct {
pub const FD_NO_GROUP = 1 << 0;
pub const FD_OUTPUT = 1 << 1;
pub const PID_CGROUP = 1 << 2;
pub const FD_CLOEXEC = 1 << 3;
};
pub const EVENT_IOC = struct {
pub const ENABLE = 9216;
pub const DISABLE = 9217;
pub const REFRESH = 9218;
pub const RESET = 9219;
pub const PERIOD = 1074275332;
pub const SET_OUTPUT = 9221;
pub const SET_FILTER = 1074275334;
pub const SET_BPF = 1074013192;
pub const PAUSE_OUTPUT = 1074013193;
pub const QUERY_BPF = 3221758986;
pub const MODIFY_ATTRIBUTES = 1074275339;
};
pub const IOC_FLAG_GROUP = 1;
};
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