Merge release-20200422.0-37-g279f1eb (automated)

1 files changed, 172 insertions, 0 deletions

diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2.go b/pkg/sentry/syscalls/linux/vfs2/vfs2.go
new file mode 100755
index 000000000..f1b697844
--- /dev/null
+++ b/pkg/sentry/syscalls/linux/vfs2/vfs2.go
@@ -0,0 +1,172 @@
+// Copyright 2020 The gVisor Authors.
+//
+// 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 vfs2 provides syscall implementations that use VFS2.
+package vfs2
+
+import (
+	"gvisor.dev/gvisor/pkg/sentry/syscalls"
+	"gvisor.dev/gvisor/pkg/sentry/syscalls/linux"
+)
+
+// Override syscall table to add syscalls implementations from this package.
+func Override() {
+	// Override AMD64.
+	s := linux.AMD64
+	s.Table[0] = syscalls.Supported("read", Read)
+	s.Table[1] = syscalls.Supported("write", Write)
+	s.Table[2] = syscalls.Supported("open", Open)
+	s.Table[3] = syscalls.Supported("close", Close)
+	s.Table[4] = syscalls.Supported("stat", Stat)
+	s.Table[5] = syscalls.Supported("fstat", Fstat)
+	s.Table[6] = syscalls.Supported("lstat", Lstat)
+	s.Table[7] = syscalls.Supported("poll", Poll)
+	s.Table[8] = syscalls.Supported("lseek", Lseek)
+	s.Table[9] = syscalls.Supported("mmap", Mmap)
+	s.Table[16] = syscalls.Supported("ioctl", Ioctl)
+	s.Table[17] = syscalls.Supported("pread64", Pread64)
+	s.Table[18] = syscalls.Supported("pwrite64", Pwrite64)
+	s.Table[19] = syscalls.Supported("readv", Readv)
+	s.Table[20] = syscalls.Supported("writev", Writev)
+	s.Table[21] = syscalls.Supported("access", Access)
+	s.Table[22] = syscalls.Supported("pipe", Pipe)
+	s.Table[23] = syscalls.Supported("select", Select)
+	s.Table[32] = syscalls.Supported("dup", Dup)
+	s.Table[33] = syscalls.Supported("dup2", Dup2)
+	delete(s.Table, 40) // sendfile
+	s.Table[41] = syscalls.Supported("socket", Socket)
+	s.Table[42] = syscalls.Supported("connect", Connect)
+	s.Table[43] = syscalls.Supported("accept", Accept)
+	s.Table[44] = syscalls.Supported("sendto", SendTo)
+	s.Table[45] = syscalls.Supported("recvfrom", RecvFrom)
+	s.Table[46] = syscalls.Supported("sendmsg", SendMsg)
+	s.Table[47] = syscalls.Supported("recvmsg", RecvMsg)
+	s.Table[48] = syscalls.Supported("shutdown", Shutdown)
+	s.Table[49] = syscalls.Supported("bind", Bind)
+	s.Table[50] = syscalls.Supported("listen", Listen)
+	s.Table[51] = syscalls.Supported("getsockname", GetSockName)
+	s.Table[52] = syscalls.Supported("getpeername", GetPeerName)
+	s.Table[53] = syscalls.Supported("socketpair", SocketPair)
+	s.Table[54] = syscalls.Supported("setsockopt", SetSockOpt)
+	s.Table[55] = syscalls.Supported("getsockopt", GetSockOpt)
+	s.Table[59] = syscalls.Supported("execve", Execve)
+	s.Table[72] = syscalls.Supported("fcntl", Fcntl)
+	delete(s.Table, 73) // flock
+	s.Table[74] = syscalls.Supported("fsync", Fsync)
+	s.Table[75] = syscalls.Supported("fdatasync", Fdatasync)
+	s.Table[76] = syscalls.Supported("truncate", Truncate)
+	s.Table[77] = syscalls.Supported("ftruncate", Ftruncate)
+	s.Table[78] = syscalls.Supported("getdents", Getdents)
+	s.Table[79] = syscalls.Supported("getcwd", Getcwd)
+	s.Table[80] = syscalls.Supported("chdir", Chdir)
+	s.Table[81] = syscalls.Supported("fchdir", Fchdir)
+	s.Table[82] = syscalls.Supported("rename", Rename)
+	s.Table[83] = syscalls.Supported("mkdir", Mkdir)
+	s.Table[84] = syscalls.Supported("rmdir", Rmdir)
+	s.Table[85] = syscalls.Supported("creat", Creat)
+	s.Table[86] = syscalls.Supported("link", Link)
+	s.Table[87] = syscalls.Supported("unlink", Unlink)
+	s.Table[88] = syscalls.Supported("symlink", Symlink)
+	s.Table[89] = syscalls.Supported("readlink", Readlink)
+	s.Table[90] = syscalls.Supported("chmod", Chmod)
+	s.Table[91] = syscalls.Supported("fchmod", Fchmod)
+	s.Table[92] = syscalls.Supported("chown", Chown)
+	s.Table[93] = syscalls.Supported("fchown", Fchown)
+	s.Table[94] = syscalls.Supported("lchown", Lchown)
+	s.Table[132] = syscalls.Supported("utime", Utime)
+	s.Table[133] = syscalls.Supported("mknod", Mknod)
+	s.Table[137] = syscalls.Supported("statfs", Statfs)
+	s.Table[138] = syscalls.Supported("fstatfs", Fstatfs)
+	s.Table[161] = syscalls.Supported("chroot", Chroot)
+	s.Table[162] = syscalls.Supported("sync", Sync)
+	delete(s.Table, 165) // mount
+	delete(s.Table, 166) // umount2
+	delete(s.Table, 187) // readahead
+	s.Table[188] = syscalls.Supported("setxattr", Setxattr)
+	s.Table[189] = syscalls.Supported("lsetxattr", Lsetxattr)
+	s.Table[190] = syscalls.Supported("fsetxattr", Fsetxattr)
+	s.Table[191] = syscalls.Supported("getxattr", Getxattr)
+	s.Table[192] = syscalls.Supported("lgetxattr", Lgetxattr)
+	s.Table[193] = syscalls.Supported("fgetxattr", Fgetxattr)
+	s.Table[194] = syscalls.Supported("listxattr", Listxattr)
+	s.Table[195] = syscalls.Supported("llistxattr", Llistxattr)
+	s.Table[196] = syscalls.Supported("flistxattr", Flistxattr)
+	s.Table[197] = syscalls.Supported("removexattr", Removexattr)
+	s.Table[198] = syscalls.Supported("lremovexattr", Lremovexattr)
+	s.Table[199] = syscalls.Supported("fremovexattr", Fremovexattr)
+	delete(s.Table, 206) // io_setup
+	delete(s.Table, 207) // io_destroy
+	delete(s.Table, 208) // io_getevents
+	delete(s.Table, 209) // io_submit
+	delete(s.Table, 210) // io_cancel
+	s.Table[213] = syscalls.Supported("epoll_create", EpollCreate)
+	s.Table[217] = syscalls.Supported("getdents64", Getdents64)
+	delete(s.Table, 221) // fdavise64
+	s.Table[232] = syscalls.Supported("epoll_wait", EpollWait)
+	s.Table[233] = syscalls.Supported("epoll_ctl", EpollCtl)
+	s.Table[235] = syscalls.Supported("utimes", Utimes)
+	delete(s.Table, 253) // inotify_init
+	delete(s.Table, 254) // inotify_add_watch
+	delete(s.Table, 255) // inotify_rm_watch
+	s.Table[257] = syscalls.Supported("openat", Openat)
+	s.Table[258] = syscalls.Supported("mkdirat", Mkdirat)
+	s.Table[259] = syscalls.Supported("mknodat", Mknodat)
+	s.Table[260] = syscalls.Supported("fchownat", Fchownat)
+	s.Table[261] = syscalls.Supported("futimens", Futimens)
+	s.Table[262] = syscalls.Supported("newfstatat", Newfstatat)
+	s.Table[263] = syscalls.Supported("unlinkat", Unlinkat)
+	s.Table[264] = syscalls.Supported("renameat", Renameat)
+	s.Table[265] = syscalls.Supported("linkat", Linkat)
+	s.Table[266] = syscalls.Supported("symlinkat", Symlinkat)
+	s.Table[267] = syscalls.Supported("readlinkat", Readlinkat)
+	s.Table[268] = syscalls.Supported("fchmodat", Fchmodat)
+	s.Table[269] = syscalls.Supported("faccessat", Faccessat)
+	s.Table[270] = syscalls.Supported("pselect", Pselect)
+	s.Table[271] = syscalls.Supported("ppoll", Ppoll)
+	delete(s.Table, 275) // splice
+	delete(s.Table, 276) // tee
+	s.Table[277] = syscalls.Supported("sync_file_range", SyncFileRange)
+	s.Table[280] = syscalls.Supported("utimensat", Utimensat)
+	s.Table[281] = syscalls.Supported("epoll_pwait", EpollPwait)
+	delete(s.Table, 282) // signalfd
+	s.Table[283] = syscalls.Supported("timerfd_create", TimerfdCreate)
+	s.Table[284] = syscalls.Supported("eventfd", Eventfd)
+	delete(s.Table, 285) // fallocate
+	s.Table[286] = syscalls.Supported("timerfd_settime", TimerfdSettime)
+	s.Table[287] = syscalls.Supported("timerfd_gettime", TimerfdGettime)
+	s.Table[288] = syscalls.Supported("accept4", Accept4)
+	delete(s.Table, 289) // signalfd4
+	s.Table[290] = syscalls.Supported("eventfd2", Eventfd2)
+	s.Table[291] = syscalls.Supported("epoll_create1", EpollCreate1)
+	s.Table[292] = syscalls.Supported("dup3", Dup3)
+	s.Table[293] = syscalls.Supported("pipe2", Pipe2)
+	delete(s.Table, 294) // inotify_init1
+	s.Table[295] = syscalls.Supported("preadv", Preadv)
+	s.Table[296] = syscalls.Supported("pwritev", Pwritev)
+	s.Table[299] = syscalls.Supported("recvmmsg", RecvMMsg)
+	s.Table[306] = syscalls.Supported("syncfs", Syncfs)
+	s.Table[307] = syscalls.Supported("sendmmsg", SendMMsg)
+	s.Table[316] = syscalls.Supported("renameat2", Renameat2)
+	delete(s.Table, 319) // memfd_create
+	s.Table[322] = syscalls.Supported("execveat", Execveat)
+	s.Table[327] = syscalls.Supported("preadv2", Preadv2)
+	s.Table[328] = syscalls.Supported("pwritev2", Pwritev2)
+	s.Table[332] = syscalls.Supported("statx", Statx)
+	s.Init()
+
+	// Override ARM64.
+	s = linux.ARM64
+	s.Table[63] = syscalls.Supported("read", Read)
+	s.Init()
+}