1# This file is used to populate seccomp's whitelist policy in combination with SYSCALLS.TXT.
2# Note that the resultant policy is applied only to zygote spawned processes.
3#
4# Each non-blank, non-comment line has the following format:
5#
6# return_type func_name[|alias_list][:syscall_name[:socketcall_id]]([parameter_list]) arch_list
7#
8# where:
9#       arch_list ::= "all" | arch+
10#       arch      ::= "arm" | "arm64" | "mips" | "mips64" | "x86" | "x86_64"
11#
12# Note:
13#      - syscall_name corresponds to the name of the syscall, which may differ from
14#        the exported function name (example: the exit syscall is implemented by the _exit()
15#        function, which is not the same as the standard C exit() function which calls it)
16
17#      - alias_list is optional comma separated list of function aliases
18#
19#      - The call_id parameter, given that func_name and syscall_name have
20#        been provided, allows the user to specify dispatch style syscalls.
21#        For example, socket() syscall on i386 actually becomes:
22#          socketcall(__NR_socket, 1, *(rest of args on stack)).
23#
24#      - Each parameter type is assumed to be stored in 32 bits.
25#
26# This file is processed by a python script named genseccomp.py.
27
28# syscalls needed to boot android
29int	pivot_root:pivot_root(const char *new_root, const char *put_old)	arm64,x86_64,mips64
30int	ioprio_get:ioprio_get(int which, int who)	arm64,x86_64,mips64
31int	ioprio_set:ioprio_set(int which, int who, int ioprio)	arm64,x86_64,mips64
32pid_t	gettid:gettid()	all
33int	futex:futex(int *uaddr, int futex_op, int val, const struct timespec *timeout, int *uaddr2, int val3)	all
34int	clone:clone(int (*fn)(void *), void *child_stack, int flags, void *arg, ..) all
35int	rt_sigreturn:rt_sigreturn(unsigned long __unused)	all
36int	rt_tgsigqueueinfo:int rt_tgsigqueueinfo(pid_t tgid, pid_t tid, int sig, siginfo_t *uinfo)	all
37int	restart_syscall:int restart_syscall()	all
38int	fstatat64|fstatat:newfstatat(int, const char*, struct stat*, int)	mips64
39int	fstat64|fstat:fstat(int, struct stat*)	mips64
40int	_flush_cache:cacheflush(char* addr, const int nbytes, const int op)	mips64
41
42# Needed for performance tools
43int	perf_event_open:perf_event_open(struct perf_event_attr *attr, pid_t pid, int cpu, int group_fd, unsigned long flags)	all
44
45# Needed for strace
46int	tkill:tkill(int tid, int sig)	all
47
48# b/34763393
49int	seccomp:seccomp(unsigned int operation, unsigned int flags, void *args)	all
50
51# syscalls needed to boot android
52int	sigreturn:sigreturn(unsigned long __unused)	arm,x86,mips
53
54# Syscalls needed to run GFXBenchmark
55pid_t	vfork:vfork()	arm,x86,x86_64
56
57# Needed for debugging 32-bit Chrome
58int	pipe:pipe(int pipefd[2])	arm,x86,mips
59
60# b/34651972
61int	access:access(const char *pathname, int mode)	arm,x86,mips
62int	stat64:stat64(const char*, struct stat64*)	arm,x86,mips
63
64# b/34813887
65int	open:open(const char *path, int oflag, ... ) arm,x86,mips
66int	getdents:getdents(unsigned int fd, struct linux_dirent *dirp, unsigned int count) arm,x86,mips
67
68# b/34719286
69int	eventfd:eventfd(unsigned int initval, int flags)	arm,x86,mips
70
71# b/34817266
72int	epoll_wait:epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout)	arm,x86,mips
73
74# Needed by sanitizers (b/34606909)
75# 5 (__NR_open) and 195 (__NR_stat64) are also required, but they are
76# already allowed.
77ssize_t	readlink:readlink(const char *path, char *buf, size_t bufsiz)	arm,x86,mips
78
79# b/34908783
80int	epoll_create:epoll_create(int size)	arm,x86,mips
81
82# b/34979910
83int	creat:creat(const char *pathname, mode_t mode)	arm,x86,mips
84int	unlink:unlink(const char *pathname)	arm,x86,mips
85
86# b/35059702
87int	lstat64:lstat64(const char*, struct stat64*)	arm,x86,mips
88
89# b/35217603
90int	fcntl:fcntl(int fd, int cmd, ... /* arg */ )	arm,x86,mips
91pid_t	fork:fork()	arm,x86,mips
92int	poll:poll(struct pollfd *fds, nfds_t nfds, int timeout)	arm,x86,mips
93
94# b/35906875. Note mips already has getuid from SYSCALLS.TXT
95int	inotify_init()	arm,x86,mips
96uid_t	getuid()	arm,x86
97
98# b/36435222
99int	remap_file_pages(void *addr, size_t size, int prot, size_t pgoff, int flags)	arm,x86,mips
100
101# b/36449658
102int	rename(const char *oldpath, const char *newpath)	arm,x86,mips
103
104# b/36726183. Note arm does not support mmap
105void*	mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset)	x86,mips
106
107# Useful new syscalls which we don't yet use in bionic.
108int sched_getattr(pid_t pid, struct sched_attr* attr, unsigned int flags) all
109int sched_setattr(pid_t pid, struct sched_attr* attr, unsigned int size, unsigned int flags) all
110int memfd_create(const char* name, unsigned int flags) all
111int renameat2(int olddirfd, const char* oldpath, int newdirfd, const char* newpath, unsigned int flags)  all
112int execveat(int dirfd, const char* pathname, char* const* argv, char* const* envp, int flags)  all
113ssize_t copy_file_range(int fd_in, loff_t* off_in, int fd_out, loff_t* off_out, size_t len, unsigned int flags) all
114int mlock2(const void* addr, size_t len, int flags) all
115ssize_t preadv2(int fd, const struct iovec* iov, int iovcnt, off_t offset, int flags) all
116ssize_t pwritev2(int fd, const struct iovec* iov, int iovcnt, off_t offset, int flags) all
117int io_setup(unsigned nr, aio_context_t *ctxp) all
118int io_destroy(aio_context_t ctx) all
119int io_submit(aio_context_t ctx, long nr,  struct iocb **iocbpp) all
120int io_getevents(aio_context_t ctx, long min_nr, long max_nr, struct io_event *events, struct timespec *timeout) all
121int io_cancel(aio_context_t ctx, struct iocb *, struct io_event *result) all
122
123# b/37769298
124int dup2(int oldfd, int newfd)	arm,x86,mips
125
126# b/62779795
127int compat_select:_newselect(int n, unsigned long* inp, unsigned long* outp, unsigned long* exp, struct timeval* timeout) arm,x86,mips
128
129# b/62090571
130int mkdir(const char *pathname, mode_t mode)	arm,x86,mips
131