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// 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
import (
"gvisor.dev/gvisor/pkg/sentry/kernel"
"gvisor.dev/gvisor/pkg/sentry/syscalls"
)
// Override syscall table to add syscalls implementations from this package.
func Override(table map[uintptr]kernel.Syscall) {
table[0] = syscalls.Supported("read", Read)
// Remove syscalls that haven't been converted yet. It's better to get ENOSYS
// rather than a SIGSEGV deep in the stack.
delete(table, 1) // write
delete(table, 2) // open
delete(table, 3) // close
delete(table, 4) // stat
delete(table, 5) // fstat
delete(table, 6) // lstat
delete(table, 7) // poll
delete(table, 8) // lseek
delete(table, 9) // mmap
delete(table, 16) // ioctl
delete(table, 17) // pread64
delete(table, 18) // pwrite64
delete(table, 19) // readv
delete(table, 20) // writev
delete(table, 21) // access
delete(table, 22) // pipe
delete(table, 32) // dup
delete(table, 33) // dup2
delete(table, 40) // sendfile
delete(table, 59) // execve
delete(table, 72) // fcntl
delete(table, 73) // flock
delete(table, 74) // fsync
delete(table, 75) // fdatasync
delete(table, 76) // truncate
delete(table, 77) // ftruncate
delete(table, 78) // getdents
delete(table, 79) // getcwd
delete(table, 80) // chdir
delete(table, 81) // fchdir
delete(table, 82) // rename
delete(table, 83) // mkdir
delete(table, 84) // rmdir
delete(table, 85) // creat
delete(table, 86) // link
delete(table, 87) // unlink
delete(table, 88) // symlink
delete(table, 89) // readlink
delete(table, 90) // chmod
delete(table, 91) // fchmod
delete(table, 92) // chown
delete(table, 93) // fchown
delete(table, 94) // lchown
delete(table, 133) // mknod
delete(table, 137) // statfs
delete(table, 138) // fstatfs
delete(table, 161) // chroot
delete(table, 162) // sync
delete(table, 165) // mount
delete(table, 166) // umount2
delete(table, 172) // iopl
delete(table, 173) // ioperm
delete(table, 187) // readahead
delete(table, 188) // setxattr
delete(table, 189) // lsetxattr
delete(table, 190) // fsetxattr
delete(table, 191) // getxattr
delete(table, 192) // lgetxattr
delete(table, 193) // fgetxattr
delete(table, 206) // io_setup
delete(table, 207) // io_destroy
delete(table, 208) // io_getevents
delete(table, 209) // io_submit
delete(table, 210) // io_cancel
delete(table, 213) // epoll_create
delete(table, 214) // epoll_ctl_old
delete(table, 215) // epoll_wait_old
delete(table, 216) // remap_file_pages
delete(table, 217) // getdents64
delete(table, 232) // epoll_wait
delete(table, 233) // epoll_ctl
delete(table, 253) // inotify_init
delete(table, 254) // inotify_add_watch
delete(table, 255) // inotify_rm_watch
delete(table, 257) // openat
delete(table, 258) // mkdirat
delete(table, 259) // mknodat
delete(table, 260) // fchownat
delete(table, 261) // futimesat
delete(table, 262) // fstatat
delete(table, 263) // unlinkat
delete(table, 264) // renameat
delete(table, 265) // linkat
delete(table, 266) // symlinkat
delete(table, 267) // readlinkat
delete(table, 268) // fchmodat
delete(table, 269) // faccessat
delete(table, 270) // pselect
delete(table, 271) // ppoll
delete(table, 285) // fallocate
delete(table, 291) // epoll_create1
delete(table, 292) // dup3
delete(table, 293) // pipe2
delete(table, 294) // inotify_init1
delete(table, 295) // preadv
delete(table, 296) // pwritev
delete(table, 306) // syncfs
delete(table, 316) // renameat2
delete(table, 319) // memfd_create
delete(table, 322) // execveat
delete(table, 327) // preadv2
delete(table, 328) // pwritev2
delete(table, 332) // statx
}
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