| Victor Hsieh | dbb8670 | 2020-06-15 09:29:07 -0700 | [diff] [blame] | 1 | # This file is used to populate seccomp's allowlist policy in combination with SYSCALLS.TXT. |
| Paul Lawrence | 3dd3d55 | 2017-04-12 10:02:54 -0700 | [diff] [blame] | 2 | # Note that the resultant policy is applied only to zygote spawned processes. |
| Paul Lawrence | 7ea4090 | 2017-02-14 13:32:23 -0800 | [diff] [blame] | 3 | # |
| Victor Hsieh | 4f02dd5 | 2017-12-20 09:19:22 -0800 | [diff] [blame] | 4 | # This file is processed by a python script named genseccomp.py. |
| Paul Lawrence | 7ea4090 | 2017-02-14 13:32:23 -0800 | [diff] [blame] | 5 | |
| Elliott Hughes | f994170 | 2022-12-02 20:18:35 +0000 | [diff] [blame] | 6 | # Syscalls needed to boot android |
| 7 | int pivot_root(const char*, const char*) lp64 |
| 8 | int ioprio_get(int, int) lp64 |
| 9 | int ioprio_set(int, int, int) lp64 |
| Paul Lawrence | 7ea4090 | 2017-02-14 13:32:23 -0800 | [diff] [blame] | 10 | |
| Elliott Hughes | f994170 | 2022-12-02 20:18:35 +0000 | [diff] [blame] | 11 | # Syscalls used internally by bionic, but not exposed directly. |
| 12 | pid_t gettid() all |
| 13 | int futex(int*, int, int, const timespec*, int*, int) all |
| 14 | int clone(int (*)(void*), void*, int, void*, ...) all |
| 15 | int sigreturn(unsigned long) lp32 |
| 16 | int rt_sigreturn(unsigned long) all |
| 17 | int rt_tgsigqueueinfo(pid_t, pid_t, int, siginfo_t*) all |
| 18 | int restart_syscall() all |
| Victor Hsieh | 1afb40c | 2018-03-30 16:48:36 +0000 | [diff] [blame] | 19 | |
| Elliott Hughes | f994170 | 2022-12-02 20:18:35 +0000 | [diff] [blame] | 20 | # vfork is used by bionic (and java.lang.ProcessBuilder) on some |
| 21 | # architectures. (The others use clone(2) directly instead.) |
| 22 | pid_t vfork() arm,x86,x86_64 |
| Paul Lawrence | 7ea4090 | 2017-02-14 13:32:23 -0800 | [diff] [blame] | 23 | |
| Elliott Hughes | f994170 | 2022-12-02 20:18:35 +0000 | [diff] [blame] | 24 | # Needed for performance tools. |
| 25 | int perf_event_open(perf_event_attr*, pid_t, int, int, unsigned long) all |
| Paul Lawrence | 7ea4090 | 2017-02-14 13:32:23 -0800 | [diff] [blame] | 26 | |
| Elliott Hughes | f994170 | 2022-12-02 20:18:35 +0000 | [diff] [blame] | 27 | # Needed for strace. |
| 28 | int tkill(int, int) all |
| Paul Lawrence | 7ea4090 | 2017-02-14 13:32:23 -0800 | [diff] [blame] | 29 | |
| Elliott Hughes | f994170 | 2022-12-02 20:18:35 +0000 | [diff] [blame] | 30 | # Needed for a CTS test of seccomp (b/34763393). |
| 31 | int seccomp(unsigned, unsigned, void*) all |
| 32 | |
| Greg Kaiser | 6f02710 | 2022-12-13 17:20:04 +0000 | [diff] [blame] | 33 | # TODO: remove these now we've updated the toolchain (http://b/229989971). |
| 34 | int open(const char*, int, ...) arm,x86,x86_64 |
| 35 | int stat64(const char*, stat64*) arm,x86 |
| 36 | ssize_t readlink(const char*, char*, size_t) arm,x86,x86_64 |
| 37 | int stat(const char*, stat*) arm,x86,x86_64 |
| 38 | |
| Elliott Hughes | 9a5bdd6 | 2019-08-05 08:40:52 -0700 | [diff] [blame] | 39 | # |
| Elliott Hughes | f994170 | 2022-12-02 20:18:35 +0000 | [diff] [blame] | 40 | # (Potentially) useful new syscalls which we don't yet use in bionic. |
| Elliott Hughes | 9a5bdd6 | 2019-08-05 08:40:52 -0700 | [diff] [blame] | 41 | # |
| 42 | |
| Elliott Hughes | 9a5bdd6 | 2019-08-05 08:40:52 -0700 | [diff] [blame] | 43 | # Since Linux 2.5, not in glibc. |
| Elliott Hughes | f994170 | 2022-12-02 20:18:35 +0000 | [diff] [blame] | 44 | int io_setup(unsigned, aio_context_t*) all |
| 45 | int io_destroy(aio_context_t) all |
| 46 | int io_submit(aio_context_t, long, iocb**) all |
| 47 | int io_getevents(aio_context_t, long, long, io_event*, timespec*) all |
| 48 | int io_cancel(aio_context_t, iocb*, io_event*) all |
| Elliott Hughes | 3d24d2b | 2019-08-05 13:53:01 -0700 | [diff] [blame] | 49 | # Since Linux 3.14, not in glibc. |
| Elliott Hughes | f994170 | 2022-12-02 20:18:35 +0000 | [diff] [blame] | 50 | int sched_getattr(pid_t, sched_attr*, unsigned) all |
| 51 | int sched_setattr(pid_t, sched_attr*, unsigned, unsigned) all |
| Elliott Hughes | 3d24d2b | 2019-08-05 13:53:01 -0700 | [diff] [blame] | 52 | # Since Linux 3.19, not in glibc (and not really needed to implement fexecve). |
| Elliott Hughes | f994170 | 2022-12-02 20:18:35 +0000 | [diff] [blame] | 53 | int execveat(int, const char*, char* const*, char* const*, int) all |
| Elliott Hughes | 3d24d2b | 2019-08-05 13:53:01 -0700 | [diff] [blame] | 54 | # Since Linux 4.3, not in glibc. Probed for and conditionally used by ART. |
| Elliott Hughes | f994170 | 2022-12-02 20:18:35 +0000 | [diff] [blame] | 55 | int membarrier(int, int) all |
| 56 | # Since Linux 5.1, not in glibc. Not used by bionic, and not likely ever |
| 57 | # to be (because the last thing anyone needs is a new 32-bit ABI in the |
| 58 | # 2020s!) but http://b/138781460 showed cuttlefish needed at least the |
| 59 | # clock_gettime64 syscall. |
| Elliott Hughes | ee7bc30 | 2019-07-31 18:39:00 -0700 | [diff] [blame] | 60 | int clock_gettime64(clockid_t, timespec64*) lp32 |
| 61 | int clock_settime64(clockid_t, const timespec64*) lp32 |
| 62 | int clock_adjtime64(clockid_t, timex64*) lp32 |
| 63 | int clock_getres_time64(clockid_t, timespec64*) lp32 |
| 64 | int clock_nanosleep_time64(clockid_t, int, const timespec64*, timespec*) lp32 |
| Elliott Hughes | ee7bc30 | 2019-07-31 18:39:00 -0700 | [diff] [blame] | 65 | int timer_gettime64(__kernel_timer_t, itimerspec64*) lp32 |
| 66 | int timer_settime64(__kernel_timer_t, int, const itimerspec64*, itimerspec64*) lp32 |
| 67 | int timerfd_gettime64(int, itimerspec64*) lp32 |
| 68 | int timerfd_settime64(int, int, const itimerspec64*, itimerspec64*) lp32 |
| 69 | int utimensat_time64(int, const char*, const timespec64[2], int) lp32 |
| 70 | int pselect6_time64(int, fd_set*, fd_set*, timespec64*, void*) lp32 |
| 71 | int ppoll_time64(pollfd*, unsigned int, timespec64*, const sigset64_t*, size_t) lp32 |
| 72 | int recvmmsg_time64(int, mmsghdr*, unsigned int, int, const timespec64*) lp32 |
| Elliott Hughes | ee7bc30 | 2019-07-31 18:39:00 -0700 | [diff] [blame] | 73 | int rt_sigtimedwait_time64(const sigset64_t*, siginfo_t*, const timespec64*, size_t) lp32 |
| 74 | int futex_time64(int*, int, int, const timespec64*, int*, int) lp32 |
| 75 | int sched_rr_get_interval_time64(pid_t, timespec64*) lp32 |
| Lokesh Gidra | 7839c17 | 2021-03-11 08:00:26 -0800 | [diff] [blame] | 76 | # Since Linux 5.4, not in glibc. Probed for and conditionally used by ART. |
| 77 | int userfaultfd(int) all |