| # Copyright 2019 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # This file lists out the seccomp policy. |
| |
| # The following are generic syscalls. |
| write: 1 |
| getuid: 1 |
| geteuid: 1 |
| getgid: 1 |
| getegid: 1 |
| epoll_create1: 1 |
| pipe2: 1 |
| epoll_ctl: 1 |
| gettid: 1 |
| rt_sigprocmask: 1 |
| signalfd4: 1 |
| fstat: 1 |
| clock_getres: 1 |
| getresuid: 1 |
| getresgid: 1 |
| fcntl: 1 |
| getsockname: 1 |
| poll: 1 |
| read: 1 |
| openat: 1 |
| clone: 1 |
| set_robust_list: 1 |
| # base::FileEnumerator::Next() |
| getdents: 1 |
| wait4: 1 |
| munmap: 1 |
| sendto: 1 |
| sendmsg: 1 |
| recvmsg: 1 |
| epoll_wait: 1 |
| close: 1 |
| exit_group: 1 |
| stat: 1 |
| access: 1 |
| |
| # The following are syscalls enabled by -L in minijail. |
| connect: 1 |
| lseek: 1 |
| |
| # The following are syscalls required for ectool_i2cread |
| rt_sigaction: 1 |
| uname: 1 |
| lstat: 1 |
| mprotect: arg2 == PROT_READ || arg2 == PROT_NONE |
| execve: 1 |
| brk: 1 |
| flock: 1 |
| mmap: arg2 == PROT_READ || arg2 == PROT_READ|PROT_WRITE || arg2 == PROT_READ|PROT_EXEC |
| dup2: 1 |
| arch_prctl: 1 |
| getpid: 1 |
| set_tid_address: 1 |
| getdents64: 1 |
| # ioctl: |
| # arg1 == _IOC(_IOC_READ|_IOC_WRITE, 0xec, 0x1, 0x108) (0xc108ec01) || |
| # arg1 == _IOC(_IOC_READ|_IOC_WRITE, 0xec, 0, 0x14) (0xc014ec00) || |
| # arg1 == _IOC(_IOC_READ|_IOC_WRITE, 0x3a, 0, 0x28) (0xc0283a00) |
| # |
| # Driver type 0x3a (":") = CROS_EC_DEV_IOC |
| # (Old iotcl format, used by ChromeOS 3.18 and older) |
| # |
| # Driver type 0xec = CROS_EC_DEV_IOC_V2 |
| # (New ioctl format, used by ChromeOS 4.4 or later as well as upstream 4.0+) |
| # Please refer to src/platform/ec/util/cros_ec_dev.h for more info |
| ioctl: arg1 == 0xc108ec01 || arg1 == 0xc0283a00 || arg1 == 0xc014ec00 |
| # TODO(b/120826467) Disallow execve when accessing /dev/cros_ec |
| # without ectool is possible |
| pipe: 1 |
| prlimit64: 1 |
| setgroups: 1 |
| setresgid: 1 |
| setresuid: 1 |
