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// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package linux provides syscall tables for amd64 Linux.
package linux
import (
"syscall"
"gvisor.googlesource.com/gvisor/pkg/abi"
"gvisor.googlesource.com/gvisor/pkg/abi/linux"
"gvisor.googlesource.com/gvisor/pkg/sentry/arch"
"gvisor.googlesource.com/gvisor/pkg/sentry/kernel"
"gvisor.googlesource.com/gvisor/pkg/sentry/syscalls"
"gvisor.googlesource.com/gvisor/pkg/sentry/usermem"
"gvisor.googlesource.com/gvisor/pkg/syserror"
)
// AUDIT_ARCH_X86_64 identifies the Linux syscall API on AMD64, and is taken
// from <linux/audit.h>.
const _AUDIT_ARCH_X86_64 = 0xc000003e
// AMD64 is a table of Linux amd64 syscall API with the corresponding syscall
// numbers from Linux 4.4. The entries commented out are those syscalls we
// don't currently support.
var AMD64 = &kernel.SyscallTable{
OS: abi.Linux,
Arch: arch.AMD64,
Version: kernel.Version{
// Version 4.4 is chosen as a stable, longterm version of Linux, which
// guides the interface provided by this syscall table. The build
// version is that for a clean build with default kernel config, at 5
// minutes after v4.4 was tagged.
Sysname: "Linux",
Release: "4.4",
Version: "#1 SMP Sun Jan 10 15:06:54 PST 2016",
},
AuditNumber: _AUDIT_ARCH_X86_64,
Table: map[uintptr]kernel.SyscallFn{
0: Read,
1: Write,
2: Open,
3: Close,
4: Stat,
5: Fstat,
6: Lstat,
7: Poll,
8: Lseek,
9: Mmap,
10: Mprotect,
11: Munmap,
12: Brk,
13: RtSigaction,
14: RtSigprocmask,
15: RtSigreturn,
16: Ioctl,
17: Pread64,
18: Pwrite64,
19: Readv,
20: Writev,
21: Access,
22: Pipe,
23: Select,
24: SchedYield,
25: Mremap,
26: Msync,
27: Mincore,
28: Madvise,
29: Shmget,
30: Shmat,
31: Shmctl,
32: Dup,
33: Dup2,
34: Pause,
35: Nanosleep,
36: Getitimer,
37: Alarm,
38: Setitimer,
39: Getpid,
40: Sendfile,
41: Socket,
42: Connect,
43: Accept,
44: SendTo,
45: RecvFrom,
46: SendMsg,
47: RecvMsg,
48: Shutdown,
49: Bind,
50: Listen,
51: GetSockName,
52: GetPeerName,
53: SocketPair,
54: SetSockOpt,
55: GetSockOpt,
56: Clone,
57: Fork,
58: Vfork,
59: Execve,
60: Exit,
61: Wait4,
62: Kill,
63: Uname,
64: Semget,
65: Semop,
66: Semctl,
67: Shmdt,
// 68: Msgget, TODO
// 69: Msgsnd, TODO
// 70: Msgrcv, TODO
// 71: Msgctl, TODO
72: Fcntl,
73: Flock,
74: Fsync,
75: Fdatasync,
76: Truncate,
77: Ftruncate,
78: Getdents,
79: Getcwd,
80: Chdir,
81: Fchdir,
82: Rename,
83: Mkdir,
84: Rmdir,
85: Creat,
86: Link,
87: Unlink,
88: Symlink,
89: Readlink,
90: Chmod,
91: Fchmod,
92: Chown,
93: Fchown,
94: Lchown,
95: Umask,
96: Gettimeofday,
97: Getrlimit,
98: Getrusage,
99: Sysinfo,
100: Times,
101: Ptrace,
102: Getuid,
103: Syslog,
104: Getgid,
105: Setuid,
106: Setgid,
107: Geteuid,
108: Getegid,
109: Setpgid,
110: Getppid,
111: Getpgrp,
112: Setsid,
113: Setreuid,
114: Setregid,
115: Getgroups,
116: Setgroups,
117: Setresuid,
118: Getresuid,
119: Setresgid,
120: Getresgid,
121: Getpgid,
// 122: Setfsuid, TODO
// 123: Setfsgid, TODO
124: Getsid,
125: Capget,
126: Capset,
127: RtSigpending,
128: RtSigtimedwait,
129: RtSigqueueinfo,
130: RtSigsuspend,
131: Sigaltstack,
132: Utime,
133: Mknod,
134: syscalls.Error(syscall.ENOSYS), // Uselib, obsolete
135: syscalls.ErrorWithEvent(syscall.EINVAL), // SetPersonality, unable to change personality
136: syscalls.ErrorWithEvent(syscall.ENOSYS), // Ustat, needs filesystem support
137: Statfs,
138: Fstatfs,
// 139: Sysfs, TODO
140: Getpriority,
141: Setpriority,
142: syscalls.CapError(linux.CAP_SYS_NICE), // SchedSetparam, requires cap_sys_nice
143: SchedGetparam,
144: SchedSetscheduler,
145: SchedGetscheduler,
146: SchedGetPriorityMax,
147: SchedGetPriorityMin,
148: syscalls.ErrorWithEvent(syscall.EPERM), // SchedRrGetInterval,
149: syscalls.Error(nil), // Mlock, TODO
150: syscalls.Error(nil), // Munlock, TODO
151: syscalls.Error(nil), // Mlockall, TODO
152: syscalls.Error(nil), // Munlockall, TODO
153: syscalls.CapError(linux.CAP_SYS_TTY_CONFIG), // Vhangup,
154: syscalls.Error(syscall.EPERM), // ModifyLdt,
155: syscalls.Error(syscall.EPERM), // PivotRoot,
156: syscalls.Error(syscall.EPERM), // Sysctl, syscall is "worthless"
157: Prctl,
158: ArchPrctl,
159: syscalls.CapError(linux.CAP_SYS_TIME), // Adjtimex, requires cap_sys_time
160: Setrlimit,
161: Chroot,
162: Sync,
163: syscalls.CapError(linux.CAP_SYS_PACCT), // Acct, requires cap_sys_pacct
164: syscalls.CapError(linux.CAP_SYS_TIME), // Settimeofday, requires cap_sys_time
165: Mount,
166: Umount2,
167: syscalls.CapError(linux.CAP_SYS_ADMIN), // Swapon, requires cap_sys_admin
168: syscalls.CapError(linux.CAP_SYS_ADMIN), // Swapoff, requires cap_sys_admin
169: syscalls.CapError(linux.CAP_SYS_BOOT), // Reboot, requires cap_sys_boot
170: Sethostname,
171: Setdomainname,
172: syscalls.CapError(linux.CAP_SYS_RAWIO), // Iopl, requires cap_sys_rawio
173: syscalls.CapError(linux.CAP_SYS_RAWIO), // Ioperm, requires cap_sys_rawio
174: syscalls.CapError(linux.CAP_SYS_MODULE), // CreateModule, requires cap_sys_module
175: syscalls.CapError(linux.CAP_SYS_MODULE), // InitModule, requires cap_sys_module
176: syscalls.CapError(linux.CAP_SYS_MODULE), // DeleteModule, requires cap_sys_module
177: syscalls.Error(syscall.ENOSYS), // GetKernelSyms, not supported in > 2.6
178: syscalls.Error(syscall.ENOSYS), // QueryModule, not supported in > 2.6
179: syscalls.CapError(linux.CAP_SYS_ADMIN), // Quotactl, requires cap_sys_admin (most operations)
180: syscalls.Error(syscall.ENOSYS), // Nfsservctl, does not exist > 3.1
181: syscalls.Error(syscall.ENOSYS), // Getpmsg, not implemented in Linux
182: syscalls.Error(syscall.ENOSYS), // Putpmsg, not implemented in Linux
183: syscalls.Error(syscall.ENOSYS), // AfsSyscall, not implemented in Linux
184: syscalls.Error(syscall.ENOSYS), // Tuxcall, not implemented in Linux
185: syscalls.Error(syscall.ENOSYS), // Security, not implemented in Linux
186: Gettid,
187: nil, // Readahead, TODO
188: syscalls.ErrorWithEvent(syscall.ENOTSUP), // Setxattr, requires filesystem support
189: syscalls.ErrorWithEvent(syscall.ENOTSUP), // Lsetxattr, requires filesystem support
190: syscalls.ErrorWithEvent(syscall.ENOTSUP), // Fsetxattr, requires filesystem support
191: syscalls.ErrorWithEvent(syscall.ENOTSUP), // Getxattr, requires filesystem support
192: syscalls.ErrorWithEvent(syscall.ENOTSUP), // Lgetxattr, requires filesystem support
193: syscalls.ErrorWithEvent(syscall.ENOTSUP), // Fgetxattr, requires filesystem support
194: syscalls.ErrorWithEvent(syscall.ENOTSUP), // Listxattr, requires filesystem support
195: syscalls.ErrorWithEvent(syscall.ENOTSUP), // Llistxattr, requires filesystem support
196: syscalls.ErrorWithEvent(syscall.ENOTSUP), // Flistxattr, requires filesystem support
197: syscalls.ErrorWithEvent(syscall.ENOTSUP), // Removexattr, requires filesystem support
198: syscalls.ErrorWithEvent(syscall.ENOTSUP), // Lremovexattr, requires filesystem support
199: syscalls.ErrorWithEvent(syscall.ENOTSUP), // Fremovexattr, requires filesystem support
200: Tkill,
201: Time,
202: Futex,
203: SchedSetaffinity,
204: SchedGetaffinity,
205: syscalls.Error(syscall.ENOSYS), // SetThreadArea, expected to return ENOSYS on 64-bit
206: IoSetup,
207: IoDestroy,
208: IoGetevents,
209: IoSubmit,
210: IoCancel,
211: syscalls.Error(syscall.ENOSYS), // GetThreadArea, expected to return ENOSYS on 64-bit
212: syscalls.CapError(linux.CAP_SYS_ADMIN), // LookupDcookie, requires cap_sys_admin
213: EpollCreate,
214: syscalls.ErrorWithEvent(syscall.ENOSYS), // EpollCtlOld, deprecated (afaik, unused)
215: syscalls.ErrorWithEvent(syscall.ENOSYS), // EpollWaitOld, deprecated (afaik, unused)
216: syscalls.ErrorWithEvent(syscall.ENOSYS), // RemapFilePages, deprecated since 3.16
217: Getdents64,
218: SetTidAddress,
219: RestartSyscall,
// 220: Semtimedop, TODO
221: Fadvise64,
222: TimerCreate,
223: TimerSettime,
224: TimerGettime,
225: TimerGetoverrun,
226: TimerDelete,
227: ClockSettime,
228: ClockGettime,
229: ClockGetres,
230: ClockNanosleep,
231: ExitGroup,
232: EpollWait,
233: EpollCtl,
234: Tgkill,
235: Utimes,
236: syscalls.Error(syscall.ENOSYS), // Vserver, not implemented by Linux
237: syscalls.CapError(linux.CAP_SYS_NICE), // Mbind, may require cap_sys_nice TODO
238: SetMempolicy,
239: GetMempolicy,
// 240: MqOpen, TODO
// 241: MqUnlink, TODO
// 242: MqTimedsend, TODO
// 243: MqTimedreceive, TODO
// 244: MqNotify, TODO
// 245: MqGetsetattr, TODO
246: syscalls.CapError(linux.CAP_SYS_BOOT), // kexec_load, requires cap_sys_boot
247: Waitid,
248: syscalls.Error(syscall.EACCES), // AddKey, not available to user
249: syscalls.Error(syscall.EACCES), // RequestKey, not available to user
250: syscalls.Error(syscall.EACCES), // Keyctl, not available to user
251: syscalls.CapError(linux.CAP_SYS_ADMIN), // IoprioSet, requires cap_sys_nice or cap_sys_admin (depending)
252: syscalls.CapError(linux.CAP_SYS_ADMIN), // IoprioGet, requires cap_sys_nice or cap_sys_admin (depending)
253: InotifyInit,
254: InotifyAddWatch,
255: InotifyRmWatch,
256: syscalls.CapError(linux.CAP_SYS_NICE), // MigratePages, requires cap_sys_nice
257: Openat,
258: Mkdirat,
259: Mknodat,
260: Fchownat,
261: Futimesat,
262: Fstatat,
263: Unlinkat,
264: Renameat,
265: Linkat,
266: Symlinkat,
267: Readlinkat,
268: Fchmodat,
269: Faccessat,
270: Pselect,
271: Ppoll,
272: Unshare,
273: syscalls.Error(syscall.ENOSYS), // SetRobustList, obsolete
274: syscalls.Error(syscall.ENOSYS), // GetRobustList, obsolete
// 275: Splice, TODO
// 276: Tee, TODO
277: SyncFileRange,
// 278: Vmsplice, TODO
279: syscalls.CapError(linux.CAP_SYS_NICE), // MovePages, requires cap_sys_nice (mostly)
280: Utimensat,
281: EpollPwait,
// 282: Signalfd, TODO
283: TimerfdCreate,
284: Eventfd,
285: Fallocate,
286: TimerfdSettime,
287: TimerfdGettime,
288: Accept4,
// 289: Signalfd4, TODO
290: Eventfd2,
291: EpollCreate1,
292: Dup3,
293: Pipe2,
294: InotifyInit1,
295: Preadv,
296: Pwritev,
297: RtTgsigqueueinfo,
298: syscalls.ErrorWithEvent(syscall.ENODEV), // PerfEventOpen, no support for perf counters
299: RecvMMsg,
300: syscalls.ErrorWithEvent(syscall.ENOSYS), // FanotifyInit, needs CONFIG_FANOTIFY
301: syscalls.ErrorWithEvent(syscall.ENOSYS), // FanotifyMark, needs CONFIG_FANOTIFY
302: Prlimit64,
303: syscalls.ErrorWithEvent(syscall.EOPNOTSUPP), // NameToHandleAt, needs filesystem support
304: syscalls.ErrorWithEvent(syscall.EOPNOTSUPP), // OpenByHandleAt, needs filesystem support
305: syscalls.CapError(linux.CAP_SYS_TIME), // ClockAdjtime, requires cap_sys_time
306: Syncfs,
307: SendMMsg,
// 308: Setns, TODO
309: Getcpu,
// 310: ProcessVmReadv, TODO may require cap_sys_ptrace
// 311: ProcessVmWritev, TODO may require cap_sys_ptrace
312: syscalls.CapError(linux.CAP_SYS_PTRACE), // Kcmp, requires cap_sys_ptrace
313: syscalls.CapError(linux.CAP_SYS_MODULE), // FinitModule, requires cap_sys_module
// 314: SchedSetattr, TODO, we have no scheduler
// 315: SchedGetattr, TODO, we have no scheduler
// 316: Renameat2, TODO
317: Seccomp,
318: GetRandom,
// 319: MemfdCreate, TODO
320: syscalls.CapError(linux.CAP_SYS_BOOT), // KexecFileLoad, infeasible to support
321: syscalls.CapError(linux.CAP_SYS_ADMIN), // Bpf, requires cap_sys_admin for all commands
// 322: Execveat, TODO
// 323: Userfaultfd, TODO
// 324: Membarrier, TODO
// Syscalls after 325 are backports from 4.6.
325: syscalls.Error(nil), // Mlock2, TODO
327: Preadv2,
// 328: Pwritev2, // Pwritev2, TODO
},
Emulate: map[usermem.Addr]uintptr{
0xffffffffff600000: 96, // vsyscall gettimeofday(2)
0xffffffffff600400: 201, // vsyscall time(2)
0xffffffffff600800: 309, // vsyscall getcpu(2)
},
Missing: func(t *kernel.Task, sysno uintptr, args arch.SyscallArguments) (uintptr, error) {
t.Kernel().EmitUnimplementedEvent(t)
return 0, syserror.ENOSYS
},
}
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