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 gensyscalls.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 getrandom:int getrandom(void *buf, size_t buflen, unsigned int flags) all 39int fstatat64|fstatat:newfstatat(int, const char*, struct stat*, int) mips64 40int fstat64|fstat:fstat(int, struct stat*) mips64 41int _flush_cache:cacheflush(char* addr, const int nbytes, const int op) mips64 42 43# Needed for performance tools 44int perf_event_open:perf_event_open(struct perf_event_attr *attr, pid_t pid, int cpu, int group_fd, unsigned long flags) all 45 46# Needed for strace 47int tkill:tkill(int tid, int sig) all 48 49# b/35034743 50int syncfs:syncfs(int fd) all 51 52# b/34763393 53int seccomp:seccomp(unsigned int operation, unsigned int flags, void *args) all 54 55# syscalls needed to boot android 56int sigreturn:sigreturn(unsigned long __unused) arm,x86,mips 57 58# Syscalls needed to run GFXBenchmark 59pid_t vfork:vfork() arm,x86,x86_64 60 61# Needed for debugging 32-bit Chrome 62int pipe:pipe(int pipefd[2]) arm,x86,mips 63 64# b/34651972 65int access:access(const char *pathname, int mode) arm,x86,mips 66int stat64:stat64(const char *restrict path, struct stat64 *restrict buf) arm,x86,mips 67 68# b/34813887 69int open:open(const char *path, int oflag, ... ) arm,x86,mips 70int getdents:getdents(unsigned int fd, struct linux_dirent *dirp, unsigned int count) arm,x86,mips 71 72# b/34719286 73int eventfd:eventfd(unsigned int initval, int flags) arm,x86,mips 74 75# b/34817266 76int epoll_wait:epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout) arm,x86,mips 77 78# Needed by sanitizers (b/34606909) 79# 5 (__NR_open) and 195 (__NR_stat64) are also required, but they are 80# already allowed. 81ssize_t readlink:readlink(const char *path, char *buf, size_t bufsiz) arm,x86,mips 82 83# b/34908783 84int epoll_create:epoll_create(int size) arm,x86,mips 85 86# b/34979910 87int creat:creat(const char *pathname, mode_t mode) arm,x86,mips 88int unlink:unlink(const char *pathname) arm,x86,mips 89 90# b/35059702 91int lstat64:lstat64(const char *restrict path, struct stat64 *restrict buf) arm,x86,mips 92 93# b/35217603 94int fcntl:fcntl(int fd, int cmd, ... /* arg */ ) arm,x86,mips 95pid_t fork:fork() arm,x86,mips 96int poll:poll(struct pollfd *fds, nfds_t nfds, int timeout) arm,x86,mips 97 98# b/35906875. Note mips already has getuid from SYSCALLS.TXT 99int inotify_init() arm,x86,mips 100uid_t getuid() arm,x86 101 102# b/36435222 103int remap_file_pages(void *addr, size_t size, int prot, size_t pgoff, int flags) arm,x86,mips 104 105# b/36449658 106int rename(const char *oldpath, const char *newpath) arm,x86,mips 107 108# b/36726183. Note arm does not support mmap 109void* mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset) x86,mips 110 111# Useful new syscalls which we don't yet use in bionic. 112int sched_getattr(pid_t pid, struct sched_attr* attr, unsigned int flags) all 113int sched_setattr(pid_t pid, struct sched_attr* attr, unsigned int size, unsigned int flags) all 114int memfd_create(const char* name, unsigned int flags) all 115int renameat2(int olddirfd, const char* oldpath, int newdirfd, const char* newpath, unsigned int flags) all 116int execveat(int dirfd, const char* pathname, char* const* argv, char* const* envp, int flags) all 117ssize_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 118int mlock2(const void* addr, size_t len, int flags) all 119ssize_t preadv2(int fd, const struct iovec* iov, int iovcnt, off_t offset, int flags) all 120ssize_t pwritev2(int fd, const struct iovec* iov, int iovcnt, off_t offset, int flags) all 121 122# b/37769298 123int dup2(int oldfd, int newfd) arm,x86,mips 124 125# b/62779795 126int compat_select:_newselect(int n, unsigned long* inp, unsigned long* outp, unsigned long* exp, struct timeval* timeout) arm,x86,mips 127 128# b/62090571 129int mkdir(const char *pathname, mode_t mode) arm,x86,mips