Don Newton | 98fd881 | 2019-09-23 15:15:02 -0400 | [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 | // FreeBSD 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 | "sync" |
| 17 | "unsafe" |
| 18 | ) |
| 19 | |
| 20 | const ( |
| 21 | SYS_FSTAT_FREEBSD12 = 551 // { int fstat(int fd, _Out_ struct stat *sb); } |
| 22 | SYS_FSTATAT_FREEBSD12 = 552 // { int fstatat(int fd, _In_z_ char *path, \ |
| 23 | SYS_GETDIRENTRIES_FREEBSD12 = 554 // { ssize_t getdirentries(int fd, \ |
| 24 | SYS_STATFS_FREEBSD12 = 555 // { int statfs(_In_z_ char *path, \ |
| 25 | SYS_FSTATFS_FREEBSD12 = 556 // { int fstatfs(int fd, \ |
| 26 | SYS_GETFSSTAT_FREEBSD12 = 557 // { int getfsstat( \ |
| 27 | SYS_MKNODAT_FREEBSD12 = 559 // { int mknodat(int fd, _In_z_ char *path, \ |
| 28 | ) |
| 29 | |
| 30 | // See https://www.freebsd.org/doc/en_US.ISO8859-1/books/porters-handbook/versions.html. |
| 31 | var ( |
| 32 | osreldateOnce sync.Once |
| 33 | osreldate uint32 |
| 34 | ) |
| 35 | |
| 36 | // INO64_FIRST from /usr/src/lib/libc/sys/compat-ino64.h |
| 37 | const _ino64First = 1200031 |
| 38 | |
Don Newton | 7577f07 | 2020-01-06 12:41:11 -0500 | [diff] [blame] | 39 | //sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL |
| 40 | |
Don Newton | 98fd881 | 2019-09-23 15:15:02 -0400 | [diff] [blame] | 41 | func supportsABI(ver uint32) bool { |
| 42 | osreldateOnce.Do(func() { osreldate, _ = SysctlUint32("kern.osreldate") }) |
| 43 | return osreldate >= ver |
| 44 | } |
| 45 | |
| 46 | // SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. |
| 47 | type SockaddrDatalink struct { |
| 48 | Len uint8 |
| 49 | Family uint8 |
| 50 | Index uint16 |
| 51 | Type uint8 |
| 52 | Nlen uint8 |
| 53 | Alen uint8 |
| 54 | Slen uint8 |
| 55 | Data [46]int8 |
| 56 | raw RawSockaddrDatalink |
| 57 | } |
| 58 | |
| 59 | // Translate "kern.hostname" to []_C_int{0,1,2,3}. |
| 60 | func nametomib(name string) (mib []_C_int, err error) { |
| 61 | const siz = unsafe.Sizeof(mib[0]) |
| 62 | |
| 63 | // NOTE(rsc): It seems strange to set the buffer to have |
| 64 | // size CTL_MAXNAME+2 but use only CTL_MAXNAME |
| 65 | // as the size. I don't know why the +2 is here, but the |
| 66 | // kernel uses +2 for its own implementation of this function. |
| 67 | // I am scared that if we don't include the +2 here, the kernel |
| 68 | // will silently write 2 words farther than we specify |
| 69 | // and we'll get memory corruption. |
| 70 | var buf [CTL_MAXNAME + 2]_C_int |
| 71 | n := uintptr(CTL_MAXNAME) * siz |
| 72 | |
| 73 | p := (*byte)(unsafe.Pointer(&buf[0])) |
| 74 | bytes, err := ByteSliceFromString(name) |
| 75 | if err != nil { |
| 76 | return nil, err |
| 77 | } |
| 78 | |
| 79 | // Magic sysctl: "setting" 0.3 to a string name |
| 80 | // lets you read back the array of integers form. |
| 81 | if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil { |
| 82 | return nil, err |
| 83 | } |
| 84 | return buf[0 : n/siz], nil |
| 85 | } |
| 86 | |
Don Newton | 7577f07 | 2020-01-06 12:41:11 -0500 | [diff] [blame] | 87 | func direntIno(buf []byte) (uint64, bool) { |
| 88 | return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno)) |
| 89 | } |
| 90 | |
| 91 | func direntReclen(buf []byte) (uint64, bool) { |
| 92 | return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen)) |
| 93 | } |
| 94 | |
| 95 | func direntNamlen(buf []byte) (uint64, bool) { |
| 96 | return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen)) |
| 97 | } |
| 98 | |
Don Newton | 98fd881 | 2019-09-23 15:15:02 -0400 | [diff] [blame] | 99 | func Pipe(p []int) (err error) { |
| 100 | return Pipe2(p, 0) |
| 101 | } |
| 102 | |
| 103 | //sysnb pipe2(p *[2]_C_int, flags int) (err error) |
| 104 | |
| 105 | func Pipe2(p []int, flags int) error { |
| 106 | if len(p) != 2 { |
| 107 | return EINVAL |
| 108 | } |
| 109 | var pp [2]_C_int |
| 110 | err := pipe2(&pp, flags) |
| 111 | p[0] = int(pp[0]) |
| 112 | p[1] = int(pp[1]) |
| 113 | return err |
| 114 | } |
| 115 | |
| 116 | func GetsockoptIPMreqn(fd, level, opt int) (*IPMreqn, error) { |
| 117 | var value IPMreqn |
| 118 | vallen := _Socklen(SizeofIPMreqn) |
| 119 | errno := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) |
| 120 | return &value, errno |
| 121 | } |
| 122 | |
| 123 | func SetsockoptIPMreqn(fd, level, opt int, mreq *IPMreqn) (err error) { |
| 124 | return setsockopt(fd, level, opt, unsafe.Pointer(mreq), unsafe.Sizeof(*mreq)) |
| 125 | } |
| 126 | |
| 127 | func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) { |
| 128 | var rsa RawSockaddrAny |
| 129 | var len _Socklen = SizeofSockaddrAny |
| 130 | nfd, err = accept4(fd, &rsa, &len, flags) |
| 131 | if err != nil { |
| 132 | return |
| 133 | } |
| 134 | if len > SizeofSockaddrAny { |
| 135 | panic("RawSockaddrAny too small") |
| 136 | } |
| 137 | sa, err = anyToSockaddr(fd, &rsa) |
| 138 | if err != nil { |
| 139 | Close(nfd) |
| 140 | nfd = 0 |
| 141 | } |
| 142 | return |
| 143 | } |
| 144 | |
| 145 | const ImplementsGetwd = true |
| 146 | |
| 147 | //sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD |
| 148 | |
| 149 | func Getwd() (string, error) { |
| 150 | var buf [PathMax]byte |
| 151 | _, err := Getcwd(buf[0:]) |
| 152 | if err != nil { |
| 153 | return "", err |
| 154 | } |
| 155 | n := clen(buf[:]) |
| 156 | if n < 1 { |
| 157 | return "", EINVAL |
| 158 | } |
| 159 | return string(buf[:n]), nil |
| 160 | } |
| 161 | |
| 162 | func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { |
| 163 | var ( |
| 164 | _p0 unsafe.Pointer |
| 165 | bufsize uintptr |
| 166 | oldBuf []statfs_freebsd11_t |
| 167 | needsConvert bool |
| 168 | ) |
| 169 | |
| 170 | if len(buf) > 0 { |
| 171 | if supportsABI(_ino64First) { |
| 172 | _p0 = unsafe.Pointer(&buf[0]) |
| 173 | bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) |
| 174 | } else { |
| 175 | n := len(buf) |
| 176 | oldBuf = make([]statfs_freebsd11_t, n) |
| 177 | _p0 = unsafe.Pointer(&oldBuf[0]) |
| 178 | bufsize = unsafe.Sizeof(statfs_freebsd11_t{}) * uintptr(n) |
| 179 | needsConvert = true |
| 180 | } |
| 181 | } |
| 182 | var sysno uintptr = SYS_GETFSSTAT |
| 183 | if supportsABI(_ino64First) { |
| 184 | sysno = SYS_GETFSSTAT_FREEBSD12 |
| 185 | } |
| 186 | r0, _, e1 := Syscall(sysno, uintptr(_p0), bufsize, uintptr(flags)) |
| 187 | n = int(r0) |
| 188 | if e1 != 0 { |
| 189 | err = e1 |
| 190 | } |
| 191 | if e1 == 0 && needsConvert { |
| 192 | for i := range oldBuf { |
| 193 | buf[i].convertFrom(&oldBuf[i]) |
| 194 | } |
| 195 | } |
| 196 | return |
| 197 | } |
| 198 | |
| 199 | func setattrlistTimes(path string, times []Timespec, flags int) error { |
| 200 | // used on Darwin for UtimesNano |
| 201 | return ENOSYS |
| 202 | } |
| 203 | |
| 204 | //sys ioctl(fd int, req uint, arg uintptr) (err error) |
| 205 | |
| 206 | func Uname(uname *Utsname) error { |
| 207 | mib := []_C_int{CTL_KERN, KERN_OSTYPE} |
| 208 | n := unsafe.Sizeof(uname.Sysname) |
| 209 | if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil { |
| 210 | return err |
| 211 | } |
| 212 | |
| 213 | mib = []_C_int{CTL_KERN, KERN_HOSTNAME} |
| 214 | n = unsafe.Sizeof(uname.Nodename) |
| 215 | if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil { |
| 216 | return err |
| 217 | } |
| 218 | |
| 219 | mib = []_C_int{CTL_KERN, KERN_OSRELEASE} |
| 220 | n = unsafe.Sizeof(uname.Release) |
| 221 | if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil { |
| 222 | return err |
| 223 | } |
| 224 | |
| 225 | mib = []_C_int{CTL_KERN, KERN_VERSION} |
| 226 | n = unsafe.Sizeof(uname.Version) |
| 227 | if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil { |
| 228 | return err |
| 229 | } |
| 230 | |
| 231 | // The version might have newlines or tabs in it, convert them to |
| 232 | // spaces. |
| 233 | for i, b := range uname.Version { |
| 234 | if b == '\n' || b == '\t' { |
| 235 | if i == len(uname.Version)-1 { |
| 236 | uname.Version[i] = 0 |
| 237 | } else { |
| 238 | uname.Version[i] = ' ' |
| 239 | } |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | mib = []_C_int{CTL_HW, HW_MACHINE} |
| 244 | n = unsafe.Sizeof(uname.Machine) |
| 245 | if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil { |
| 246 | return err |
| 247 | } |
| 248 | |
| 249 | return nil |
| 250 | } |
| 251 | |
| 252 | func Stat(path string, st *Stat_t) (err error) { |
| 253 | var oldStat stat_freebsd11_t |
| 254 | if supportsABI(_ino64First) { |
| 255 | return fstatat_freebsd12(AT_FDCWD, path, st, 0) |
| 256 | } |
| 257 | err = stat(path, &oldStat) |
| 258 | if err != nil { |
| 259 | return err |
| 260 | } |
| 261 | |
| 262 | st.convertFrom(&oldStat) |
| 263 | return nil |
| 264 | } |
| 265 | |
| 266 | func Lstat(path string, st *Stat_t) (err error) { |
| 267 | var oldStat stat_freebsd11_t |
| 268 | if supportsABI(_ino64First) { |
| 269 | return fstatat_freebsd12(AT_FDCWD, path, st, AT_SYMLINK_NOFOLLOW) |
| 270 | } |
| 271 | err = lstat(path, &oldStat) |
| 272 | if err != nil { |
| 273 | return err |
| 274 | } |
| 275 | |
| 276 | st.convertFrom(&oldStat) |
| 277 | return nil |
| 278 | } |
| 279 | |
| 280 | func Fstat(fd int, st *Stat_t) (err error) { |
| 281 | var oldStat stat_freebsd11_t |
| 282 | if supportsABI(_ino64First) { |
| 283 | return fstat_freebsd12(fd, st) |
| 284 | } |
| 285 | err = fstat(fd, &oldStat) |
| 286 | if err != nil { |
| 287 | return err |
| 288 | } |
| 289 | |
| 290 | st.convertFrom(&oldStat) |
| 291 | return nil |
| 292 | } |
| 293 | |
| 294 | func Fstatat(fd int, path string, st *Stat_t, flags int) (err error) { |
| 295 | var oldStat stat_freebsd11_t |
| 296 | if supportsABI(_ino64First) { |
| 297 | return fstatat_freebsd12(fd, path, st, flags) |
| 298 | } |
| 299 | err = fstatat(fd, path, &oldStat, flags) |
| 300 | if err != nil { |
| 301 | return err |
| 302 | } |
| 303 | |
| 304 | st.convertFrom(&oldStat) |
| 305 | return nil |
| 306 | } |
| 307 | |
| 308 | func Statfs(path string, st *Statfs_t) (err error) { |
| 309 | var oldStatfs statfs_freebsd11_t |
| 310 | if supportsABI(_ino64First) { |
| 311 | return statfs_freebsd12(path, st) |
| 312 | } |
| 313 | err = statfs(path, &oldStatfs) |
| 314 | if err != nil { |
| 315 | return err |
| 316 | } |
| 317 | |
| 318 | st.convertFrom(&oldStatfs) |
| 319 | return nil |
| 320 | } |
| 321 | |
| 322 | func Fstatfs(fd int, st *Statfs_t) (err error) { |
| 323 | var oldStatfs statfs_freebsd11_t |
| 324 | if supportsABI(_ino64First) { |
| 325 | return fstatfs_freebsd12(fd, st) |
| 326 | } |
| 327 | err = fstatfs(fd, &oldStatfs) |
| 328 | if err != nil { |
| 329 | return err |
| 330 | } |
| 331 | |
| 332 | st.convertFrom(&oldStatfs) |
| 333 | return nil |
| 334 | } |
| 335 | |
| 336 | func Getdents(fd int, buf []byte) (n int, err error) { |
| 337 | return Getdirentries(fd, buf, nil) |
| 338 | } |
| 339 | |
| 340 | func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { |
| 341 | if supportsABI(_ino64First) { |
Don Newton | 7577f07 | 2020-01-06 12:41:11 -0500 | [diff] [blame] | 342 | if basep == nil || unsafe.Sizeof(*basep) == 8 { |
| 343 | return getdirentries_freebsd12(fd, buf, (*uint64)(unsafe.Pointer(basep))) |
| 344 | } |
| 345 | // The freebsd12 syscall needs a 64-bit base. On 32-bit machines |
| 346 | // we can't just use the basep passed in. See #32498. |
| 347 | var base uint64 = uint64(*basep) |
| 348 | n, err = getdirentries_freebsd12(fd, buf, &base) |
| 349 | *basep = uintptr(base) |
| 350 | if base>>32 != 0 { |
| 351 | // We can't stuff the base back into a uintptr, so any |
| 352 | // future calls would be suspect. Generate an error. |
| 353 | // EIO is allowed by getdirentries. |
| 354 | err = EIO |
| 355 | } |
| 356 | return |
Don Newton | 98fd881 | 2019-09-23 15:15:02 -0400 | [diff] [blame] | 357 | } |
| 358 | |
| 359 | // The old syscall entries are smaller than the new. Use 1/4 of the original |
| 360 | // buffer size rounded up to DIRBLKSIZ (see /usr/src/lib/libc/sys/getdirentries.c). |
| 361 | oldBufLen := roundup(len(buf)/4, _dirblksiz) |
| 362 | oldBuf := make([]byte, oldBufLen) |
| 363 | n, err = getdirentries(fd, oldBuf, basep) |
| 364 | if err == nil && n > 0 { |
| 365 | n = convertFromDirents11(buf, oldBuf[:n]) |
| 366 | } |
| 367 | return |
| 368 | } |
| 369 | |
| 370 | func Mknod(path string, mode uint32, dev uint64) (err error) { |
| 371 | var oldDev int |
| 372 | if supportsABI(_ino64First) { |
| 373 | return mknodat_freebsd12(AT_FDCWD, path, mode, dev) |
| 374 | } |
| 375 | oldDev = int(dev) |
| 376 | return mknod(path, mode, oldDev) |
| 377 | } |
| 378 | |
| 379 | func Mknodat(fd int, path string, mode uint32, dev uint64) (err error) { |
| 380 | var oldDev int |
| 381 | if supportsABI(_ino64First) { |
| 382 | return mknodat_freebsd12(fd, path, mode, dev) |
| 383 | } |
| 384 | oldDev = int(dev) |
| 385 | return mknodat(fd, path, mode, oldDev) |
| 386 | } |
| 387 | |
| 388 | // round x to the nearest multiple of y, larger or equal to x. |
| 389 | // |
| 390 | // from /usr/include/sys/param.h Macros for counting and rounding. |
| 391 | // #define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) |
| 392 | func roundup(x, y int) int { |
| 393 | return ((x + y - 1) / y) * y |
| 394 | } |
| 395 | |
| 396 | func (s *Stat_t) convertFrom(old *stat_freebsd11_t) { |
| 397 | *s = Stat_t{ |
Don Newton | 7577f07 | 2020-01-06 12:41:11 -0500 | [diff] [blame] | 398 | Dev: uint64(old.Dev), |
| 399 | Ino: uint64(old.Ino), |
| 400 | Nlink: uint64(old.Nlink), |
| 401 | Mode: old.Mode, |
| 402 | Uid: old.Uid, |
| 403 | Gid: old.Gid, |
| 404 | Rdev: uint64(old.Rdev), |
| 405 | Atim: old.Atim, |
| 406 | Mtim: old.Mtim, |
| 407 | Ctim: old.Ctim, |
| 408 | Btim: old.Btim, |
| 409 | Size: old.Size, |
| 410 | Blocks: old.Blocks, |
| 411 | Blksize: old.Blksize, |
| 412 | Flags: old.Flags, |
| 413 | Gen: uint64(old.Gen), |
Don Newton | 98fd881 | 2019-09-23 15:15:02 -0400 | [diff] [blame] | 414 | } |
| 415 | } |
| 416 | |
| 417 | func (s *Statfs_t) convertFrom(old *statfs_freebsd11_t) { |
| 418 | *s = Statfs_t{ |
| 419 | Version: _statfsVersion, |
| 420 | Type: old.Type, |
| 421 | Flags: old.Flags, |
| 422 | Bsize: old.Bsize, |
| 423 | Iosize: old.Iosize, |
| 424 | Blocks: old.Blocks, |
| 425 | Bfree: old.Bfree, |
| 426 | Bavail: old.Bavail, |
| 427 | Files: old.Files, |
| 428 | Ffree: old.Ffree, |
| 429 | Syncwrites: old.Syncwrites, |
| 430 | Asyncwrites: old.Asyncwrites, |
| 431 | Syncreads: old.Syncreads, |
| 432 | Asyncreads: old.Asyncreads, |
| 433 | // Spare |
| 434 | Namemax: old.Namemax, |
| 435 | Owner: old.Owner, |
| 436 | Fsid: old.Fsid, |
| 437 | // Charspare |
| 438 | // Fstypename |
| 439 | // Mntfromname |
| 440 | // Mntonname |
| 441 | } |
| 442 | |
| 443 | sl := old.Fstypename[:] |
| 444 | n := clen(*(*[]byte)(unsafe.Pointer(&sl))) |
| 445 | copy(s.Fstypename[:], old.Fstypename[:n]) |
| 446 | |
| 447 | sl = old.Mntfromname[:] |
| 448 | n = clen(*(*[]byte)(unsafe.Pointer(&sl))) |
| 449 | copy(s.Mntfromname[:], old.Mntfromname[:n]) |
| 450 | |
| 451 | sl = old.Mntonname[:] |
| 452 | n = clen(*(*[]byte)(unsafe.Pointer(&sl))) |
| 453 | copy(s.Mntonname[:], old.Mntonname[:n]) |
| 454 | } |
| 455 | |
| 456 | func convertFromDirents11(buf []byte, old []byte) int { |
| 457 | const ( |
| 458 | fixedSize = int(unsafe.Offsetof(Dirent{}.Name)) |
| 459 | oldFixedSize = int(unsafe.Offsetof(dirent_freebsd11{}.Name)) |
| 460 | ) |
| 461 | |
| 462 | dstPos := 0 |
| 463 | srcPos := 0 |
| 464 | for dstPos+fixedSize < len(buf) && srcPos+oldFixedSize < len(old) { |
| 465 | dstDirent := (*Dirent)(unsafe.Pointer(&buf[dstPos])) |
| 466 | srcDirent := (*dirent_freebsd11)(unsafe.Pointer(&old[srcPos])) |
| 467 | |
| 468 | reclen := roundup(fixedSize+int(srcDirent.Namlen)+1, 8) |
| 469 | if dstPos+reclen > len(buf) { |
| 470 | break |
| 471 | } |
| 472 | |
| 473 | dstDirent.Fileno = uint64(srcDirent.Fileno) |
| 474 | dstDirent.Off = 0 |
| 475 | dstDirent.Reclen = uint16(reclen) |
| 476 | dstDirent.Type = srcDirent.Type |
| 477 | dstDirent.Pad0 = 0 |
| 478 | dstDirent.Namlen = uint16(srcDirent.Namlen) |
| 479 | dstDirent.Pad1 = 0 |
| 480 | |
| 481 | copy(dstDirent.Name[:], srcDirent.Name[:srcDirent.Namlen]) |
| 482 | padding := buf[dstPos+fixedSize+int(dstDirent.Namlen) : dstPos+reclen] |
| 483 | for i := range padding { |
| 484 | padding[i] = 0 |
| 485 | } |
| 486 | |
| 487 | dstPos += int(dstDirent.Reclen) |
| 488 | srcPos += int(srcDirent.Reclen) |
| 489 | } |
| 490 | |
| 491 | return dstPos |
| 492 | } |
| 493 | |
| 494 | func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { |
| 495 | if raceenabled { |
| 496 | raceReleaseMerge(unsafe.Pointer(&ioSync)) |
| 497 | } |
| 498 | return sendfile(outfd, infd, offset, count) |
| 499 | } |
| 500 | |
Don Newton | 7577f07 | 2020-01-06 12:41:11 -0500 | [diff] [blame] | 501 | //sys ptrace(request int, pid int, addr uintptr, data int) (err error) |
| 502 | |
| 503 | func PtraceAttach(pid int) (err error) { |
| 504 | return ptrace(PTRACE_ATTACH, pid, 0, 0) |
| 505 | } |
| 506 | |
| 507 | func PtraceCont(pid int, signal int) (err error) { |
| 508 | return ptrace(PTRACE_CONT, pid, 1, signal) |
| 509 | } |
| 510 | |
| 511 | func PtraceDetach(pid int) (err error) { |
| 512 | return ptrace(PTRACE_DETACH, pid, 1, 0) |
| 513 | } |
| 514 | |
| 515 | func PtraceGetFpRegs(pid int, fpregsout *FpReg) (err error) { |
| 516 | return ptrace(PTRACE_GETFPREGS, pid, uintptr(unsafe.Pointer(fpregsout)), 0) |
| 517 | } |
| 518 | |
| 519 | func PtraceGetFsBase(pid int, fsbase *int64) (err error) { |
| 520 | return ptrace(PTRACE_GETFSBASE, pid, uintptr(unsafe.Pointer(fsbase)), 0) |
| 521 | } |
| 522 | |
| 523 | func PtraceGetRegs(pid int, regsout *Reg) (err error) { |
| 524 | return ptrace(PTRACE_GETREGS, pid, uintptr(unsafe.Pointer(regsout)), 0) |
| 525 | } |
| 526 | |
| 527 | func PtraceIO(req int, pid int, addr uintptr, out []byte, countin int) (count int, err error) { |
| 528 | ioDesc := PtraceIoDesc{Op: int32(req), Offs: (*byte)(unsafe.Pointer(addr)), Addr: (*byte)(unsafe.Pointer(&out[0])), Len: uint(countin)} |
| 529 | err = ptrace(PTRACE_IO, pid, uintptr(unsafe.Pointer(&ioDesc)), 0) |
| 530 | return int(ioDesc.Len), err |
| 531 | } |
| 532 | |
| 533 | func PtraceLwpEvents(pid int, enable int) (err error) { |
| 534 | return ptrace(PTRACE_LWPEVENTS, pid, 0, enable) |
| 535 | } |
| 536 | |
| 537 | func PtraceLwpInfo(pid int, info uintptr) (err error) { |
| 538 | return ptrace(PTRACE_LWPINFO, pid, info, int(unsafe.Sizeof(PtraceLwpInfoStruct{}))) |
| 539 | } |
| 540 | |
| 541 | func PtracePeekData(pid int, addr uintptr, out []byte) (count int, err error) { |
| 542 | return PtraceIO(PIOD_READ_D, pid, addr, out, SizeofLong) |
| 543 | } |
| 544 | |
| 545 | func PtracePeekText(pid int, addr uintptr, out []byte) (count int, err error) { |
| 546 | return PtraceIO(PIOD_READ_I, pid, addr, out, SizeofLong) |
| 547 | } |
| 548 | |
| 549 | func PtracePokeData(pid int, addr uintptr, data []byte) (count int, err error) { |
| 550 | return PtraceIO(PIOD_WRITE_D, pid, addr, data, SizeofLong) |
| 551 | } |
| 552 | |
| 553 | func PtracePokeText(pid int, addr uintptr, data []byte) (count int, err error) { |
| 554 | return PtraceIO(PIOD_WRITE_I, pid, addr, data, SizeofLong) |
| 555 | } |
| 556 | |
| 557 | func PtraceSetRegs(pid int, regs *Reg) (err error) { |
| 558 | return ptrace(PTRACE_SETREGS, pid, uintptr(unsafe.Pointer(regs)), 0) |
| 559 | } |
| 560 | |
| 561 | func PtraceSingleStep(pid int) (err error) { |
| 562 | return ptrace(PTRACE_SINGLESTEP, pid, 1, 0) |
| 563 | } |
| 564 | |
Don Newton | 98fd881 | 2019-09-23 15:15:02 -0400 | [diff] [blame] | 565 | /* |
| 566 | * Exposed directly |
| 567 | */ |
| 568 | //sys Access(path string, mode uint32) (err error) |
| 569 | //sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) |
| 570 | //sys CapEnter() (err error) |
| 571 | //sys capRightsGet(version int, fd int, rightsp *CapRights) (err error) = SYS___CAP_RIGHTS_GET |
| 572 | //sys capRightsLimit(fd int, rightsp *CapRights) (err error) |
| 573 | //sys Chdir(path string) (err error) |
| 574 | //sys Chflags(path string, flags int) (err error) |
| 575 | //sys Chmod(path string, mode uint32) (err error) |
| 576 | //sys Chown(path string, uid int, gid int) (err error) |
| 577 | //sys Chroot(path string) (err error) |
| 578 | //sys Close(fd int) (err error) |
| 579 | //sys Dup(fd int) (nfd int, err error) |
| 580 | //sys Dup2(from int, to int) (err error) |
| 581 | //sys Exit(code int) |
| 582 | //sys ExtattrGetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) |
| 583 | //sys ExtattrSetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) |
| 584 | //sys ExtattrDeleteFd(fd int, attrnamespace int, attrname string) (err error) |
| 585 | //sys ExtattrListFd(fd int, attrnamespace int, data uintptr, nbytes int) (ret int, err error) |
| 586 | //sys ExtattrGetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) |
| 587 | //sys ExtattrSetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) |
| 588 | //sys ExtattrDeleteFile(file string, attrnamespace int, attrname string) (err error) |
| 589 | //sys ExtattrListFile(file string, attrnamespace int, data uintptr, nbytes int) (ret int, err error) |
| 590 | //sys ExtattrGetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) |
| 591 | //sys ExtattrSetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) |
| 592 | //sys ExtattrDeleteLink(link string, attrnamespace int, attrname string) (err error) |
| 593 | //sys ExtattrListLink(link string, attrnamespace int, data uintptr, nbytes int) (ret int, err error) |
| 594 | //sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_POSIX_FADVISE |
| 595 | //sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) |
| 596 | //sys Fchdir(fd int) (err error) |
| 597 | //sys Fchflags(fd int, flags int) (err error) |
| 598 | //sys Fchmod(fd int, mode uint32) (err error) |
| 599 | //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) |
| 600 | //sys Fchown(fd int, uid int, gid int) (err error) |
| 601 | //sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) |
| 602 | //sys Flock(fd int, how int) (err error) |
| 603 | //sys Fpathconf(fd int, name int) (val int, err error) |
| 604 | //sys fstat(fd int, stat *stat_freebsd11_t) (err error) |
| 605 | //sys fstat_freebsd12(fd int, stat *Stat_t) (err error) |
| 606 | //sys fstatat(fd int, path string, stat *stat_freebsd11_t, flags int) (err error) |
| 607 | //sys fstatat_freebsd12(fd int, path string, stat *Stat_t, flags int) (err error) |
| 608 | //sys fstatfs(fd int, stat *statfs_freebsd11_t) (err error) |
| 609 | //sys fstatfs_freebsd12(fd int, stat *Statfs_t) (err error) |
| 610 | //sys Fsync(fd int) (err error) |
| 611 | //sys Ftruncate(fd int, length int64) (err error) |
| 612 | //sys getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) |
Don Newton | 7577f07 | 2020-01-06 12:41:11 -0500 | [diff] [blame] | 613 | //sys getdirentries_freebsd12(fd int, buf []byte, basep *uint64) (n int, err error) |
Don Newton | 98fd881 | 2019-09-23 15:15:02 -0400 | [diff] [blame] | 614 | //sys Getdtablesize() (size int) |
| 615 | //sysnb Getegid() (egid int) |
| 616 | //sysnb Geteuid() (uid int) |
| 617 | //sysnb Getgid() (gid int) |
| 618 | //sysnb Getpgid(pid int) (pgid int, err error) |
| 619 | //sysnb Getpgrp() (pgrp int) |
| 620 | //sysnb Getpid() (pid int) |
| 621 | //sysnb Getppid() (ppid int) |
| 622 | //sys Getpriority(which int, who int) (prio int, err error) |
| 623 | //sysnb Getrlimit(which int, lim *Rlimit) (err error) |
| 624 | //sysnb Getrusage(who int, rusage *Rusage) (err error) |
| 625 | //sysnb Getsid(pid int) (sid int, err error) |
| 626 | //sysnb Gettimeofday(tv *Timeval) (err error) |
| 627 | //sysnb Getuid() (uid int) |
| 628 | //sys Issetugid() (tainted bool) |
| 629 | //sys Kill(pid int, signum syscall.Signal) (err error) |
| 630 | //sys Kqueue() (fd int, err error) |
| 631 | //sys Lchown(path string, uid int, gid int) (err error) |
| 632 | //sys Link(path string, link string) (err error) |
| 633 | //sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error) |
| 634 | //sys Listen(s int, backlog int) (err error) |
| 635 | //sys lstat(path string, stat *stat_freebsd11_t) (err error) |
| 636 | //sys Mkdir(path string, mode uint32) (err error) |
| 637 | //sys Mkdirat(dirfd int, path string, mode uint32) (err error) |
| 638 | //sys Mkfifo(path string, mode uint32) (err error) |
| 639 | //sys mknod(path string, mode uint32, dev int) (err error) |
| 640 | //sys mknodat(fd int, path string, mode uint32, dev int) (err error) |
| 641 | //sys mknodat_freebsd12(fd int, path string, mode uint32, dev uint64) (err error) |
| 642 | //sys Nanosleep(time *Timespec, leftover *Timespec) (err error) |
| 643 | //sys Open(path string, mode int, perm uint32) (fd int, err error) |
| 644 | //sys Openat(fdat int, path string, mode int, perm uint32) (fd int, err error) |
| 645 | //sys Pathconf(path string, name int) (val int, err error) |
| 646 | //sys Pread(fd int, p []byte, offset int64) (n int, err error) |
| 647 | //sys Pwrite(fd int, p []byte, offset int64) (n int, err error) |
| 648 | //sys read(fd int, p []byte) (n int, err error) |
| 649 | //sys Readlink(path string, buf []byte) (n int, err error) |
| 650 | //sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error) |
| 651 | //sys Rename(from string, to string) (err error) |
| 652 | //sys Renameat(fromfd int, from string, tofd int, to string) (err error) |
| 653 | //sys Revoke(path string) (err error) |
| 654 | //sys Rmdir(path string) (err error) |
| 655 | //sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK |
Don Newton | 7577f07 | 2020-01-06 12:41:11 -0500 | [diff] [blame] | 656 | //sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) |
Don Newton | 98fd881 | 2019-09-23 15:15:02 -0400 | [diff] [blame] | 657 | //sysnb Setegid(egid int) (err error) |
| 658 | //sysnb Seteuid(euid int) (err error) |
| 659 | //sysnb Setgid(gid int) (err error) |
| 660 | //sys Setlogin(name string) (err error) |
| 661 | //sysnb Setpgid(pid int, pgid int) (err error) |
| 662 | //sys Setpriority(which int, who int, prio int) (err error) |
| 663 | //sysnb Setregid(rgid int, egid int) (err error) |
| 664 | //sysnb Setreuid(ruid int, euid int) (err error) |
| 665 | //sysnb Setresgid(rgid int, egid int, sgid int) (err error) |
| 666 | //sysnb Setresuid(ruid int, euid int, suid int) (err error) |
| 667 | //sysnb Setrlimit(which int, lim *Rlimit) (err error) |
| 668 | //sysnb Setsid() (pid int, err error) |
| 669 | //sysnb Settimeofday(tp *Timeval) (err error) |
| 670 | //sysnb Setuid(uid int) (err error) |
| 671 | //sys stat(path string, stat *stat_freebsd11_t) (err error) |
| 672 | //sys statfs(path string, stat *statfs_freebsd11_t) (err error) |
| 673 | //sys statfs_freebsd12(path string, stat *Statfs_t) (err error) |
| 674 | //sys Symlink(path string, link string) (err error) |
| 675 | //sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error) |
| 676 | //sys Sync() (err error) |
| 677 | //sys Truncate(path string, length int64) (err error) |
| 678 | //sys Umask(newmask int) (oldmask int) |
| 679 | //sys Undelete(path string) (err error) |
| 680 | //sys Unlink(path string) (err error) |
| 681 | //sys Unlinkat(dirfd int, path string, flags int) (err error) |
| 682 | //sys Unmount(path string, flags int) (err error) |
| 683 | //sys write(fd int, p []byte) (n int, err error) |
| 684 | //sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) |
| 685 | //sys munmap(addr uintptr, length uintptr) (err error) |
| 686 | //sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ |
| 687 | //sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE |
| 688 | //sys accept4(fd int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (nfd int, err error) |
| 689 | //sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) |
| 690 | |
| 691 | /* |
| 692 | * Unimplemented |
| 693 | */ |
| 694 | // Profil |
| 695 | // Sigaction |
| 696 | // Sigprocmask |
| 697 | // Getlogin |
| 698 | // Sigpending |
| 699 | // Sigaltstack |
| 700 | // Ioctl |
| 701 | // Reboot |
| 702 | // Execve |
| 703 | // Vfork |
| 704 | // Sbrk |
| 705 | // Sstk |
| 706 | // Ovadvise |
| 707 | // Mincore |
| 708 | // Setitimer |
| 709 | // Swapon |
| 710 | // Select |
| 711 | // Sigsuspend |
| 712 | // Readv |
| 713 | // Writev |
| 714 | // Nfssvc |
| 715 | // Getfh |
| 716 | // Quotactl |
| 717 | // Mount |
| 718 | // Csops |
| 719 | // Waitid |
| 720 | // Add_profil |
| 721 | // Kdebug_trace |
| 722 | // Sigreturn |
| 723 | // Atsocket |
| 724 | // Kqueue_from_portset_np |
| 725 | // Kqueue_portset |
| 726 | // Getattrlist |
| 727 | // Setattrlist |
| 728 | // Getdents |
| 729 | // Getdirentriesattr |
| 730 | // Searchfs |
| 731 | // Delete |
| 732 | // Copyfile |
| 733 | // Watchevent |
| 734 | // Waitevent |
| 735 | // Modwatch |
| 736 | // Fsctl |
| 737 | // Initgroups |
| 738 | // Posix_spawn |
| 739 | // Nfsclnt |
| 740 | // Fhopen |
| 741 | // Minherit |
| 742 | // Semsys |
| 743 | // Msgsys |
| 744 | // Shmsys |
| 745 | // Semctl |
| 746 | // Semget |
| 747 | // Semop |
| 748 | // Msgctl |
| 749 | // Msgget |
| 750 | // Msgsnd |
| 751 | // Msgrcv |
| 752 | // Shmat |
| 753 | // Shmctl |
| 754 | // Shmdt |
| 755 | // Shmget |
| 756 | // Shm_open |
| 757 | // Shm_unlink |
| 758 | // Sem_open |
| 759 | // Sem_close |
| 760 | // Sem_unlink |
| 761 | // Sem_wait |
| 762 | // Sem_trywait |
| 763 | // Sem_post |
| 764 | // Sem_getvalue |
| 765 | // Sem_init |
| 766 | // Sem_destroy |
| 767 | // Open_extended |
| 768 | // Umask_extended |
| 769 | // Stat_extended |
| 770 | // Lstat_extended |
| 771 | // Fstat_extended |
| 772 | // Chmod_extended |
| 773 | // Fchmod_extended |
| 774 | // Access_extended |
| 775 | // Settid |
| 776 | // Gettid |
| 777 | // Setsgroups |
| 778 | // Getsgroups |
| 779 | // Setwgroups |
| 780 | // Getwgroups |
| 781 | // Mkfifo_extended |
| 782 | // Mkdir_extended |
| 783 | // Identitysvc |
| 784 | // Shared_region_check_np |
| 785 | // Shared_region_map_np |
| 786 | // __pthread_mutex_destroy |
| 787 | // __pthread_mutex_init |
| 788 | // __pthread_mutex_lock |
| 789 | // __pthread_mutex_trylock |
| 790 | // __pthread_mutex_unlock |
| 791 | // __pthread_cond_init |
| 792 | // __pthread_cond_destroy |
| 793 | // __pthread_cond_broadcast |
| 794 | // __pthread_cond_signal |
| 795 | // Setsid_with_pid |
| 796 | // __pthread_cond_timedwait |
| 797 | // Aio_fsync |
| 798 | // Aio_return |
| 799 | // Aio_suspend |
| 800 | // Aio_cancel |
| 801 | // Aio_error |
| 802 | // Aio_read |
| 803 | // Aio_write |
| 804 | // Lio_listio |
| 805 | // __pthread_cond_wait |
| 806 | // Iopolicysys |
| 807 | // __pthread_kill |
| 808 | // __pthread_sigmask |
| 809 | // __sigwait |
| 810 | // __disable_threadsignal |
| 811 | // __pthread_markcancel |
| 812 | // __pthread_canceled |
| 813 | // __semwait_signal |
| 814 | // Proc_info |
| 815 | // Stat64_extended |
| 816 | // Lstat64_extended |
| 817 | // Fstat64_extended |
| 818 | // __pthread_chdir |
| 819 | // __pthread_fchdir |
| 820 | // Audit |
| 821 | // Auditon |
| 822 | // Getauid |
| 823 | // Setauid |
| 824 | // Getaudit |
| 825 | // Setaudit |
| 826 | // Getaudit_addr |
| 827 | // Setaudit_addr |
| 828 | // Auditctl |
| 829 | // Bsdthread_create |
| 830 | // Bsdthread_terminate |
| 831 | // Stack_snapshot |
| 832 | // Bsdthread_register |
| 833 | // Workq_open |
| 834 | // Workq_ops |
| 835 | // __mac_execve |
| 836 | // __mac_syscall |
| 837 | // __mac_get_file |
| 838 | // __mac_set_file |
| 839 | // __mac_get_link |
| 840 | // __mac_set_link |
| 841 | // __mac_get_proc |
| 842 | // __mac_set_proc |
| 843 | // __mac_get_fd |
| 844 | // __mac_set_fd |
| 845 | // __mac_get_pid |
| 846 | // __mac_get_lcid |
| 847 | // __mac_get_lctx |
| 848 | // __mac_set_lctx |
| 849 | // Setlcid |
| 850 | // Read_nocancel |
| 851 | // Write_nocancel |
| 852 | // Open_nocancel |
| 853 | // Close_nocancel |
| 854 | // Wait4_nocancel |
| 855 | // Recvmsg_nocancel |
| 856 | // Sendmsg_nocancel |
| 857 | // Recvfrom_nocancel |
| 858 | // Accept_nocancel |
| 859 | // Fcntl_nocancel |
| 860 | // Select_nocancel |
| 861 | // Fsync_nocancel |
| 862 | // Connect_nocancel |
| 863 | // Sigsuspend_nocancel |
| 864 | // Readv_nocancel |
| 865 | // Writev_nocancel |
| 866 | // Sendto_nocancel |
| 867 | // Pread_nocancel |
| 868 | // Pwrite_nocancel |
| 869 | // Waitid_nocancel |
| 870 | // Poll_nocancel |
| 871 | // Msgsnd_nocancel |
| 872 | // Msgrcv_nocancel |
| 873 | // Sem_wait_nocancel |
| 874 | // Aio_suspend_nocancel |
| 875 | // __sigwait_nocancel |
| 876 | // __semwait_signal_nocancel |
| 877 | // __mac_mount |
| 878 | // __mac_get_mount |
| 879 | // __mac_getfsstat |