118 lines
3.5 KiB
Go
118 lines
3.5 KiB
Go
// Copyright 2018 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Test binary used to test that seccomp filters are properly constructed and
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// indeed kill the process on violation.
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package main
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import (
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"flag"
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"fmt"
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"os"
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"syscall"
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"gvisor.dev/gvisor/pkg/seccomp"
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)
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func main() {
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dieFlag := flag.Bool("die", false, "trips over the filter if true")
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flag.Parse()
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syscalls := seccomp.SyscallRules{
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syscall.SYS_ACCEPT: {},
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syscall.SYS_ARCH_PRCTL: {},
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syscall.SYS_BIND: {},
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syscall.SYS_BRK: {},
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syscall.SYS_CLOCK_GETTIME: {},
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syscall.SYS_CLONE: {},
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syscall.SYS_CLOSE: {},
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syscall.SYS_DUP: {},
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syscall.SYS_DUP2: {},
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syscall.SYS_EPOLL_CREATE1: {},
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syscall.SYS_EPOLL_CTL: {},
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syscall.SYS_EPOLL_WAIT: {},
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syscall.SYS_EPOLL_PWAIT: {},
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syscall.SYS_EXIT: {},
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syscall.SYS_EXIT_GROUP: {},
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syscall.SYS_FALLOCATE: {},
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syscall.SYS_FCHMOD: {},
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syscall.SYS_FCNTL: {},
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syscall.SYS_FSTAT: {},
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syscall.SYS_FSYNC: {},
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syscall.SYS_FTRUNCATE: {},
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syscall.SYS_FUTEX: {},
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syscall.SYS_GETDENTS64: {},
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syscall.SYS_GETPEERNAME: {},
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syscall.SYS_GETPID: {},
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syscall.SYS_GETSOCKNAME: {},
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syscall.SYS_GETSOCKOPT: {},
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syscall.SYS_GETTID: {},
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syscall.SYS_GETTIMEOFDAY: {},
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syscall.SYS_LISTEN: {},
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syscall.SYS_LSEEK: {},
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syscall.SYS_MADVISE: {},
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syscall.SYS_MINCORE: {},
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syscall.SYS_MMAP: {},
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syscall.SYS_MPROTECT: {},
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syscall.SYS_MUNLOCK: {},
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syscall.SYS_MUNMAP: {},
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syscall.SYS_NANOSLEEP: {},
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syscall.SYS_NEWFSTATAT: {},
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syscall.SYS_OPEN: {},
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syscall.SYS_PPOLL: {},
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syscall.SYS_PREAD64: {},
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syscall.SYS_PSELECT6: {},
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syscall.SYS_PWRITE64: {},
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syscall.SYS_READ: {},
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syscall.SYS_READLINKAT: {},
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syscall.SYS_READV: {},
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syscall.SYS_RECVMSG: {},
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syscall.SYS_RENAMEAT: {},
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syscall.SYS_RESTART_SYSCALL: {},
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syscall.SYS_RT_SIGACTION: {},
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syscall.SYS_RT_SIGPROCMASK: {},
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syscall.SYS_RT_SIGRETURN: {},
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syscall.SYS_SCHED_YIELD: {},
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syscall.SYS_SENDMSG: {},
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syscall.SYS_SETITIMER: {},
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syscall.SYS_SET_ROBUST_LIST: {},
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syscall.SYS_SETSOCKOPT: {},
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syscall.SYS_SHUTDOWN: {},
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syscall.SYS_SIGALTSTACK: {},
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syscall.SYS_SOCKET: {},
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syscall.SYS_SYNC_FILE_RANGE: {},
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syscall.SYS_TGKILL: {},
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syscall.SYS_UTIMENSAT: {},
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syscall.SYS_WRITE: {},
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syscall.SYS_WRITEV: {},
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}
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die := *dieFlag
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if !die {
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syscalls[syscall.SYS_OPENAT] = []seccomp.Rule{
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{
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seccomp.AllowValue(10),
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},
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}
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}
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if err := seccomp.Install(syscalls); err != nil {
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fmt.Printf("Failed to install seccomp: %v", err)
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os.Exit(1)
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}
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fmt.Printf("Filters installed\n")
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syscall.RawSyscall(syscall.SYS_OPENAT, 10, 0, 0)
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fmt.Printf("Syscall was allowed!!!\n")
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}
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