David K. Bainbridge | 215e024 | 2017-09-05 23:18:24 -0700 | [diff] [blame] | 1 | // Copyright 2009,2010 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 | // OpenBSD system calls. |
| 6 | // This file is compiled as ordinary Go code, |
| 7 | // but it is also input to mksyscall, |
| 8 | // which parses the //sys lines and generates system call stubs. |
| 9 | // Note that sometimes we use a lowercase //sys name and wrap |
| 10 | // it in our own nicer implementation, either here or in |
| 11 | // syscall_bsd.go or syscall_unix.go. |
| 12 | |
| 13 | package unix |
| 14 | |
| 15 | import ( |
| 16 | "syscall" |
| 17 | "unsafe" |
| 18 | ) |
| 19 | |
| 20 | type SockaddrDatalink struct { |
| 21 | Len uint8 |
| 22 | Family uint8 |
| 23 | Index uint16 |
| 24 | Type uint8 |
| 25 | Nlen uint8 |
| 26 | Alen uint8 |
| 27 | Slen uint8 |
| 28 | Data [24]int8 |
| 29 | raw RawSockaddrDatalink |
| 30 | } |
| 31 | |
| 32 | func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) |
| 33 | |
| 34 | func nametomib(name string) (mib []_C_int, err error) { |
| 35 | |
| 36 | // Perform lookup via a binary search |
| 37 | left := 0 |
| 38 | right := len(sysctlMib) - 1 |
| 39 | for { |
| 40 | idx := left + (right-left)/2 |
| 41 | switch { |
| 42 | case name == sysctlMib[idx].ctlname: |
| 43 | return sysctlMib[idx].ctloid, nil |
| 44 | case name > sysctlMib[idx].ctlname: |
| 45 | left = idx + 1 |
| 46 | default: |
| 47 | right = idx - 1 |
| 48 | } |
| 49 | if left > right { |
| 50 | break |
| 51 | } |
| 52 | } |
| 53 | return nil, EINVAL |
| 54 | } |
| 55 | |
| 56 | func direntIno(buf []byte) (uint64, bool) { |
| 57 | return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno)) |
| 58 | } |
| 59 | |
| 60 | func direntReclen(buf []byte) (uint64, bool) { |
| 61 | return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen)) |
| 62 | } |
| 63 | |
| 64 | func direntNamlen(buf []byte) (uint64, bool) { |
| 65 | return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen)) |
| 66 | } |
| 67 | |
| 68 | //sysnb pipe(p *[2]_C_int) (err error) |
| 69 | func Pipe(p []int) (err error) { |
| 70 | if len(p) != 2 { |
| 71 | return EINVAL |
| 72 | } |
| 73 | var pp [2]_C_int |
| 74 | err = pipe(&pp) |
| 75 | p[0] = int(pp[0]) |
| 76 | p[1] = int(pp[1]) |
| 77 | return |
| 78 | } |
| 79 | |
| 80 | //sys getdents(fd int, buf []byte) (n int, err error) |
| 81 | func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { |
| 82 | return getdents(fd, buf) |
| 83 | } |
| 84 | |
| 85 | // TODO |
| 86 | func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { |
| 87 | return -1, ENOSYS |
| 88 | } |
| 89 | |
| 90 | func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { |
| 91 | var _p0 unsafe.Pointer |
| 92 | var bufsize uintptr |
| 93 | if len(buf) > 0 { |
| 94 | _p0 = unsafe.Pointer(&buf[0]) |
| 95 | bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) |
| 96 | } |
| 97 | r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags)) |
| 98 | n = int(r0) |
| 99 | if e1 != 0 { |
| 100 | err = e1 |
| 101 | } |
| 102 | return |
| 103 | } |
| 104 | |
| 105 | /* |
| 106 | * Exposed directly |
| 107 | */ |
| 108 | //sys Access(path string, mode uint32) (err error) |
| 109 | //sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) |
| 110 | //sys Chdir(path string) (err error) |
| 111 | //sys Chflags(path string, flags int) (err error) |
| 112 | //sys Chmod(path string, mode uint32) (err error) |
| 113 | //sys Chown(path string, uid int, gid int) (err error) |
| 114 | //sys Chroot(path string) (err error) |
| 115 | //sys Close(fd int) (err error) |
| 116 | //sys Dup(fd int) (nfd int, err error) |
| 117 | //sys Dup2(from int, to int) (err error) |
| 118 | //sys Exit(code int) |
| 119 | //sys Fchdir(fd int) (err error) |
| 120 | //sys Fchflags(fd int, flags int) (err error) |
| 121 | //sys Fchmod(fd int, mode uint32) (err error) |
| 122 | //sys Fchown(fd int, uid int, gid int) (err error) |
| 123 | //sys Flock(fd int, how int) (err error) |
| 124 | //sys Fpathconf(fd int, name int) (val int, err error) |
| 125 | //sys Fstat(fd int, stat *Stat_t) (err error) |
| 126 | //sys Fstatfs(fd int, stat *Statfs_t) (err error) |
| 127 | //sys Fsync(fd int) (err error) |
| 128 | //sys Ftruncate(fd int, length int64) (err error) |
| 129 | //sysnb Getegid() (egid int) |
| 130 | //sysnb Geteuid() (uid int) |
| 131 | //sysnb Getgid() (gid int) |
| 132 | //sysnb Getpgid(pid int) (pgid int, err error) |
| 133 | //sysnb Getpgrp() (pgrp int) |
| 134 | //sysnb Getpid() (pid int) |
| 135 | //sysnb Getppid() (ppid int) |
| 136 | //sys Getpriority(which int, who int) (prio int, err error) |
| 137 | //sysnb Getrlimit(which int, lim *Rlimit) (err error) |
| 138 | //sysnb Getrusage(who int, rusage *Rusage) (err error) |
| 139 | //sysnb Getsid(pid int) (sid int, err error) |
| 140 | //sysnb Gettimeofday(tv *Timeval) (err error) |
| 141 | //sysnb Getuid() (uid int) |
| 142 | //sys Issetugid() (tainted bool) |
| 143 | //sys Kill(pid int, signum syscall.Signal) (err error) |
| 144 | //sys Kqueue() (fd int, err error) |
| 145 | //sys Lchown(path string, uid int, gid int) (err error) |
| 146 | //sys Link(path string, link string) (err error) |
| 147 | //sys Listen(s int, backlog int) (err error) |
| 148 | //sys Lstat(path string, stat *Stat_t) (err error) |
| 149 | //sys Mkdir(path string, mode uint32) (err error) |
| 150 | //sys Mkfifo(path string, mode uint32) (err error) |
| 151 | //sys Mknod(path string, mode uint32, dev int) (err error) |
| 152 | //sys Nanosleep(time *Timespec, leftover *Timespec) (err error) |
| 153 | //sys Open(path string, mode int, perm uint32) (fd int, err error) |
| 154 | //sys Pathconf(path string, name int) (val int, err error) |
| 155 | //sys Pread(fd int, p []byte, offset int64) (n int, err error) |
| 156 | //sys Pwrite(fd int, p []byte, offset int64) (n int, err error) |
| 157 | //sys read(fd int, p []byte) (n int, err error) |
| 158 | //sys Readlink(path string, buf []byte) (n int, err error) |
| 159 | //sys Rename(from string, to string) (err error) |
| 160 | //sys Revoke(path string) (err error) |
| 161 | //sys Rmdir(path string) (err error) |
| 162 | //sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK |
| 163 | //sys Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error) |
| 164 | //sysnb Setegid(egid int) (err error) |
| 165 | //sysnb Seteuid(euid int) (err error) |
| 166 | //sysnb Setgid(gid int) (err error) |
| 167 | //sys Setlogin(name string) (err error) |
| 168 | //sysnb Setpgid(pid int, pgid int) (err error) |
| 169 | //sys Setpriority(which int, who int, prio int) (err error) |
| 170 | //sysnb Setregid(rgid int, egid int) (err error) |
| 171 | //sysnb Setreuid(ruid int, euid int) (err error) |
| 172 | //sysnb Setresgid(rgid int, egid int, sgid int) (err error) |
| 173 | //sysnb Setresuid(ruid int, euid int, suid int) (err error) |
| 174 | //sysnb Setrlimit(which int, lim *Rlimit) (err error) |
| 175 | //sysnb Setsid() (pid int, err error) |
| 176 | //sysnb Settimeofday(tp *Timeval) (err error) |
| 177 | //sysnb Setuid(uid int) (err error) |
| 178 | //sys Stat(path string, stat *Stat_t) (err error) |
| 179 | //sys Statfs(path string, stat *Statfs_t) (err error) |
| 180 | //sys Symlink(path string, link string) (err error) |
| 181 | //sys Sync() (err error) |
| 182 | //sys Truncate(path string, length int64) (err error) |
| 183 | //sys Umask(newmask int) (oldmask int) |
| 184 | //sys Unlink(path string) (err error) |
| 185 | //sys Unmount(path string, flags int) (err error) |
| 186 | //sys write(fd int, p []byte) (n int, err error) |
| 187 | //sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) |
| 188 | //sys munmap(addr uintptr, length uintptr) (err error) |
| 189 | //sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ |
| 190 | //sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE |
| 191 | //sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) |
| 192 | |
| 193 | /* |
| 194 | * Unimplemented |
| 195 | */ |
| 196 | // __getcwd |
| 197 | // __semctl |
| 198 | // __syscall |
| 199 | // __sysctl |
| 200 | // adjfreq |
| 201 | // break |
| 202 | // clock_getres |
| 203 | // clock_gettime |
| 204 | // clock_settime |
| 205 | // closefrom |
| 206 | // execve |
| 207 | // faccessat |
| 208 | // fchmodat |
| 209 | // fchownat |
| 210 | // fcntl |
| 211 | // fhopen |
| 212 | // fhstat |
| 213 | // fhstatfs |
| 214 | // fork |
| 215 | // fstatat |
| 216 | // futimens |
| 217 | // getfh |
| 218 | // getgid |
| 219 | // getitimer |
| 220 | // getlogin |
| 221 | // getresgid |
| 222 | // getresuid |
| 223 | // getrtable |
| 224 | // getthrid |
| 225 | // ioctl |
| 226 | // ktrace |
| 227 | // lfs_bmapv |
| 228 | // lfs_markv |
| 229 | // lfs_segclean |
| 230 | // lfs_segwait |
| 231 | // linkat |
| 232 | // mincore |
| 233 | // minherit |
| 234 | // mkdirat |
| 235 | // mkfifoat |
| 236 | // mknodat |
| 237 | // mount |
| 238 | // mquery |
| 239 | // msgctl |
| 240 | // msgget |
| 241 | // msgrcv |
| 242 | // msgsnd |
| 243 | // nfssvc |
| 244 | // nnpfspioctl |
| 245 | // openat |
| 246 | // poll |
| 247 | // preadv |
| 248 | // profil |
| 249 | // pwritev |
| 250 | // quotactl |
| 251 | // readlinkat |
| 252 | // readv |
| 253 | // reboot |
| 254 | // renameat |
| 255 | // rfork |
| 256 | // sched_yield |
| 257 | // semget |
| 258 | // semop |
| 259 | // setgroups |
| 260 | // setitimer |
| 261 | // setrtable |
| 262 | // setsockopt |
| 263 | // shmat |
| 264 | // shmctl |
| 265 | // shmdt |
| 266 | // shmget |
| 267 | // sigaction |
| 268 | // sigaltstack |
| 269 | // sigpending |
| 270 | // sigprocmask |
| 271 | // sigreturn |
| 272 | // sigsuspend |
| 273 | // symlinkat |
| 274 | // sysarch |
| 275 | // syscall |
| 276 | // threxit |
| 277 | // thrsigdivert |
| 278 | // thrsleep |
| 279 | // thrwakeup |
| 280 | // unlinkat |
| 281 | // vfork |
| 282 | // writev |