1// Copyright 2009 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5//go:build amd64 && linux 6// +build amd64,linux 7 8package unix 9 10//sys dup2(oldfd int, newfd int) (err error) 11//sysnb EpollCreate(size int) (fd int, err error) 12//sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) 13//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64 14//sys Fchown(fd int, uid int, gid int) (err error) 15//sys Fstat(fd int, stat *Stat_t) (err error) 16//sys Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_NEWFSTATAT 17//sys Fstatfs(fd int, buf *Statfs_t) (err error) 18//sys Ftruncate(fd int, length int64) (err error) 19//sysnb Getegid() (egid int) 20//sysnb Geteuid() (euid int) 21//sysnb Getgid() (gid int) 22//sysnb Getrlimit(resource int, rlim *Rlimit) (err error) 23//sysnb Getuid() (uid int) 24//sysnb inotifyInit() (fd int, err error) 25 26func InotifyInit() (fd int, err error) { 27 // First try inotify_init1, because Android's seccomp policy blocks the latter. 28 fd, err = InotifyInit1(0) 29 if err == ENOSYS { 30 fd, err = inotifyInit() 31 } 32 return 33} 34 35//sys Ioperm(from int, num int, on int) (err error) 36//sys Iopl(level int) (err error) 37//sys Lchown(path string, uid int, gid int) (err error) 38//sys Listen(s int, n int) (err error) 39 40func Lstat(path string, stat *Stat_t) (err error) { 41 return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW) 42} 43 44//sys Pause() (err error) 45//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64 46//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64 47//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) 48//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK 49 50func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) { 51 var ts *Timespec 52 if timeout != nil { 53 ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000} 54 } 55 return Pselect(nfd, r, w, e, ts, nil) 56} 57 58//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) 59//sys setfsgid(gid int) (prev int, err error) 60//sys setfsuid(uid int) (prev int, err error) 61//sysnb Setregid(rgid int, egid int) (err error) 62//sysnb Setresgid(rgid int, egid int, sgid int) (err error) 63//sysnb Setresuid(ruid int, euid int, suid int) (err error) 64//sysnb Setrlimit(resource int, rlim *Rlimit) (err error) 65//sysnb Setreuid(ruid int, euid int) (err error) 66//sys Shutdown(fd int, how int) (err error) 67//sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) 68 69func Stat(path string, stat *Stat_t) (err error) { 70 // Use fstatat, because Android's seccomp policy blocks stat. 71 return Fstatat(AT_FDCWD, path, stat, 0) 72} 73 74//sys Statfs(path string, buf *Statfs_t) (err error) 75//sys SyncFileRange(fd int, off int64, n int64, flags int) (err error) 76//sys Truncate(path string, length int64) (err error) 77//sys Ustat(dev int, ubuf *Ustat_t) (err error) 78//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) 79//sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) 80//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 81//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 82//sysnb getgroups(n int, list *_Gid_t) (nn int, err error) 83//sysnb setgroups(n int, list *_Gid_t) (err error) 84//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) 85//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) 86//sysnb socket(domain int, typ int, proto int) (fd int, err error) 87//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) 88//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 89//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 90//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) 91//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) 92//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) 93//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) 94//sys mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) 95 96//sys futimesat(dirfd int, path string, times *[2]Timeval) (err error) 97 98func Gettimeofday(tv *Timeval) (err error) { 99 errno := gettimeofday(tv) 100 if errno != 0 { 101 return errno 102 } 103 return nil 104} 105 106func Time(t *Time_t) (tt Time_t, err error) { 107 var tv Timeval 108 errno := gettimeofday(&tv) 109 if errno != 0 { 110 return 0, errno 111 } 112 if t != nil { 113 *t = Time_t(tv.Sec) 114 } 115 return Time_t(tv.Sec), nil 116} 117 118//sys Utime(path string, buf *Utimbuf) (err error) 119//sys utimes(path string, times *[2]Timeval) (err error) 120 121func setTimespec(sec, nsec int64) Timespec { 122 return Timespec{Sec: sec, Nsec: nsec} 123} 124 125func setTimeval(sec, usec int64) Timeval { 126 return Timeval{Sec: sec, Usec: usec} 127} 128 129//sysnb pipe(p *[2]_C_int) (err error) 130 131func Pipe(p []int) (err error) { 132 if len(p) != 2 { 133 return EINVAL 134 } 135 var pp [2]_C_int 136 err = pipe(&pp) 137 p[0] = int(pp[0]) 138 p[1] = int(pp[1]) 139 return 140} 141 142//sysnb pipe2(p *[2]_C_int, flags int) (err error) 143 144func Pipe2(p []int, flags int) (err error) { 145 if len(p) != 2 { 146 return EINVAL 147 } 148 var pp [2]_C_int 149 err = pipe2(&pp, flags) 150 p[0] = int(pp[0]) 151 p[1] = int(pp[1]) 152 return 153} 154 155func (r *PtraceRegs) PC() uint64 { return r.Rip } 156 157func (r *PtraceRegs) SetPC(pc uint64) { r.Rip = pc } 158 159func (iov *Iovec) SetLen(length int) { 160 iov.Len = uint64(length) 161} 162 163func (msghdr *Msghdr) SetControllen(length int) { 164 msghdr.Controllen = uint64(length) 165} 166 167func (msghdr *Msghdr) SetIovlen(length int) { 168 msghdr.Iovlen = uint64(length) 169} 170 171func (cmsg *Cmsghdr) SetLen(length int) { 172 cmsg.Len = uint64(length) 173} 174 175//sys poll(fds *PollFd, nfds int, timeout int) (n int, err error) 176 177func Poll(fds []PollFd, timeout int) (n int, err error) { 178 if len(fds) == 0 { 179 return poll(nil, 0, timeout) 180 } 181 return poll(&fds[0], len(fds), timeout) 182} 183 184//sys kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error) 185 186func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error { 187 cmdlineLen := len(cmdline) 188 if cmdlineLen > 0 { 189 // Account for the additional NULL byte added by 190 // BytePtrFromString in kexecFileLoad. The kexec_file_load 191 // syscall expects a NULL-terminated string. 192 cmdlineLen++ 193 } 194 return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags) 195} 196