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// +build amd64,linux 6 7package unix 8 9//sys Dup2(oldfd int, newfd int) (err error) 10//sysnb EpollCreate(size int) (fd int, err error) 11//sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) 12//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64 13//sys Fchown(fd int, uid int, gid int) (err error) 14//sys Fstat(fd int, stat *Stat_t) (err error) 15//sys Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_NEWFSTATAT 16//sys Fstatfs(fd int, buf *Statfs_t) (err error) 17//sys Ftruncate(fd int, length int64) (err error) 18//sysnb Getegid() (egid int) 19//sysnb Geteuid() (euid int) 20//sysnb Getgid() (gid int) 21//sysnb Getrlimit(resource int, rlim *Rlimit) (err error) 22//sysnb Getuid() (uid int) 23//sysnb inotifyInit() (fd int, err error) 24 25func InotifyInit() (fd int, err error) { 26 // First try inotify_init1, because Android's seccomp policy blocks the latter. 27 fd, err = InotifyInit1(0) 28 if err == ENOSYS { 29 fd, err = inotifyInit() 30 } 31 return 32} 33 34//sys Ioperm(from int, num int, on int) (err error) 35//sys Iopl(level int) (err error) 36//sys Lchown(path string, uid int, gid int) (err error) 37//sys Listen(s int, n int) (err error) 38 39func Lstat(path string, stat *Stat_t) (err error) { 40 return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW) 41} 42 43//sys Pause() (err error) 44//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64 45//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64 46//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) 47//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK 48 49func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) { 50 var ts *Timespec 51 if timeout != nil { 52 ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000} 53 } 54 return Pselect(nfd, r, w, e, ts, nil) 55} 56 57//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) 58//sys setfsgid(gid int) (prev int, err error) 59//sys setfsuid(uid int) (prev int, err error) 60//sysnb Setregid(rgid int, egid int) (err error) 61//sysnb Setresgid(rgid int, egid int, sgid int) (err error) 62//sysnb Setresuid(ruid int, euid int, suid int) (err error) 63//sysnb Setrlimit(resource int, rlim *Rlimit) (err error) 64//sysnb Setreuid(ruid int, euid int) (err error) 65//sys Shutdown(fd int, how int) (err error) 66//sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) 67 68func Stat(path string, stat *Stat_t) (err error) { 69 // Use fstatat, because Android's seccomp policy blocks stat. 70 return Fstatat(AT_FDCWD, path, stat, 0) 71} 72 73//sys Statfs(path string, buf *Statfs_t) (err error) 74//sys SyncFileRange(fd int, off int64, n int64, flags int) (err error) 75//sys Truncate(path string, length int64) (err error) 76//sys Ustat(dev int, ubuf *Ustat_t) (err error) 77//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) 78//sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) 79//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 80//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 81//sysnb getgroups(n int, list *_Gid_t) (nn int, err error) 82//sysnb setgroups(n int, list *_Gid_t) (err error) 83//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) 84//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) 85//sysnb socket(domain int, typ int, proto int) (fd int, err error) 86//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) 87//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 88//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 89//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) 90//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) 91//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) 92//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) 93//sys mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) 94 95//sys futimesat(dirfd int, path string, times *[2]Timeval) (err error) 96 97func Gettimeofday(tv *Timeval) (err error) { 98 errno := gettimeofday(tv) 99 if errno != 0 { 100 return errno 101 } 102 return nil 103} 104 105func Time(t *Time_t) (tt Time_t, err error) { 106 var tv Timeval 107 errno := gettimeofday(&tv) 108 if errno != 0 { 109 return 0, errno 110 } 111 if t != nil { 112 *t = Time_t(tv.Sec) 113 } 114 return Time_t(tv.Sec), nil 115} 116 117//sys Utime(path string, buf *Utimbuf) (err error) 118//sys utimes(path string, times *[2]Timeval) (err error) 119 120func setTimespec(sec, nsec int64) Timespec { 121 return Timespec{Sec: sec, Nsec: nsec} 122} 123 124func setTimeval(sec, usec int64) Timeval { 125 return Timeval{Sec: sec, Usec: usec} 126} 127 128//sysnb pipe(p *[2]_C_int) (err error) 129 130func Pipe(p []int) (err error) { 131 if len(p) != 2 { 132 return EINVAL 133 } 134 var pp [2]_C_int 135 err = pipe(&pp) 136 p[0] = int(pp[0]) 137 p[1] = int(pp[1]) 138 return 139} 140 141//sysnb pipe2(p *[2]_C_int, flags int) (err error) 142 143func Pipe2(p []int, flags int) (err error) { 144 if len(p) != 2 { 145 return EINVAL 146 } 147 var pp [2]_C_int 148 err = pipe2(&pp, flags) 149 p[0] = int(pp[0]) 150 p[1] = int(pp[1]) 151 return 152} 153 154func (r *PtraceRegs) PC() uint64 { return r.Rip } 155 156func (r *PtraceRegs) SetPC(pc uint64) { r.Rip = pc } 157 158func (iov *Iovec) SetLen(length int) { 159 iov.Len = uint64(length) 160} 161 162func (msghdr *Msghdr) SetControllen(length int) { 163 msghdr.Controllen = uint64(length) 164} 165 166func (msghdr *Msghdr) SetIovlen(length int) { 167 msghdr.Iovlen = uint64(length) 168} 169 170func (cmsg *Cmsghdr) SetLen(length int) { 171 cmsg.Len = uint64(length) 172} 173 174//sys poll(fds *PollFd, nfds int, timeout int) (n int, err error) 175 176func Poll(fds []PollFd, timeout int) (n int, err error) { 177 if len(fds) == 0 { 178 return poll(nil, 0, timeout) 179 } 180 return poll(&fds[0], len(fds), timeout) 181} 182 183//sys kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error) 184 185func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error { 186 cmdlineLen := len(cmdline) 187 if cmdlineLen > 0 { 188 // Account for the additional NULL byte added by 189 // BytePtrFromString in kexecFileLoad. The kexec_file_load 190 // syscall expects a NULL-terminated string. 191 cmdlineLen++ 192 } 193 return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags) 194} 195