8465e968a8
iOS 10 has <sys/random.h> with getentropy, glibc >= 2.25 has <sys/random.h> with getentropy and getrandom. (glibc also pollutes <unistd.h>, but that seems like a bad idea.) Also, all supported devices now have kernels with the getrandom system call. We've had these available internally for a while, but it seems like the time is ripe to expose them. Bug: http://b/67014255 Test: ran tests Change-Id: I76dde1e3a2d0bc82777eea437ac193f96964f138
130 lines
5.6 KiB
Text
130 lines
5.6 KiB
Text
# This file is used to populate seccomp's whitelist policy in combination with SYSCALLS.TXT.
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# Note that the resultant policy is applied only to zygote spawned processes.
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#
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# Each non-blank, non-comment line has the following format:
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#
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# return_type func_name[|alias_list][:syscall_name[:socketcall_id]]([parameter_list]) arch_list
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#
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# where:
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# arch_list ::= "all" | arch+
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# arch ::= "arm" | "arm64" | "mips" | "mips64" | "x86" | "x86_64"
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#
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# Note:
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# - syscall_name corresponds to the name of the syscall, which may differ from
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# the exported function name (example: the exit syscall is implemented by the _exit()
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# function, which is not the same as the standard C exit() function which calls it)
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# - alias_list is optional comma separated list of function aliases
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#
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# - The call_id parameter, given that func_name and syscall_name have
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# been provided, allows the user to specify dispatch style syscalls.
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# For example, socket() syscall on i386 actually becomes:
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# socketcall(__NR_socket, 1, *(rest of args on stack)).
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#
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# - Each parameter type is assumed to be stored in 32 bits.
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#
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# This file is processed by a python script named gensyscalls.py.
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# syscalls needed to boot android
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int pivot_root:pivot_root(const char *new_root, const char *put_old) arm64,x86_64,mips64
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int ioprio_get:ioprio_get(int which, int who) arm64,x86_64,mips64
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int ioprio_set:ioprio_set(int which, int who, int ioprio) arm64,x86_64,mips64
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pid_t gettid:gettid() all
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int futex:futex(int *uaddr, int futex_op, int val, const struct timespec *timeout, int *uaddr2, int val3) all
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int clone:clone(int (*fn)(void *), void *child_stack, int flags, void *arg, ..) all
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int rt_sigreturn:rt_sigreturn(unsigned long __unused) all
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int rt_tgsigqueueinfo:int rt_tgsigqueueinfo(pid_t tgid, pid_t tid, int sig, siginfo_t *uinfo) all
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int restart_syscall:int restart_syscall() all
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int fstatat64|fstatat:newfstatat(int, const char*, struct stat*, int) mips64
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int fstat64|fstat:fstat(int, struct stat*) mips64
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int _flush_cache:cacheflush(char* addr, const int nbytes, const int op) mips64
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# Needed for performance tools
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int perf_event_open:perf_event_open(struct perf_event_attr *attr, pid_t pid, int cpu, int group_fd, unsigned long flags) all
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# Needed for strace
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int tkill:tkill(int tid, int sig) all
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# b/34763393
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int seccomp:seccomp(unsigned int operation, unsigned int flags, void *args) all
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# syscalls needed to boot android
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int sigreturn:sigreturn(unsigned long __unused) arm,x86,mips
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# Syscalls needed to run GFXBenchmark
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pid_t vfork:vfork() arm,x86,x86_64
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# Needed for debugging 32-bit Chrome
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int pipe:pipe(int pipefd[2]) arm,x86,mips
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# b/34651972
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int access:access(const char *pathname, int mode) arm,x86,mips
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int stat64:stat64(const char*, struct stat64*) arm,x86,mips
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# b/34813887
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int open:open(const char *path, int oflag, ... ) arm,x86,mips
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int getdents:getdents(unsigned int fd, struct linux_dirent *dirp, unsigned int count) arm,x86,mips
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# b/34719286
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int eventfd:eventfd(unsigned int initval, int flags) arm,x86,mips
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# b/34817266
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int epoll_wait:epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout) arm,x86,mips
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# Needed by sanitizers (b/34606909)
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# 5 (__NR_open) and 195 (__NR_stat64) are also required, but they are
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# already allowed.
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ssize_t readlink:readlink(const char *path, char *buf, size_t bufsiz) arm,x86,mips
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# b/34908783
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int epoll_create:epoll_create(int size) arm,x86,mips
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# b/34979910
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int creat:creat(const char *pathname, mode_t mode) arm,x86,mips
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int unlink:unlink(const char *pathname) arm,x86,mips
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# b/35059702
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int lstat64:lstat64(const char*, struct stat64*) arm,x86,mips
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# b/35217603
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int fcntl:fcntl(int fd, int cmd, ... /* arg */ ) arm,x86,mips
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pid_t fork:fork() arm,x86,mips
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int poll:poll(struct pollfd *fds, nfds_t nfds, int timeout) arm,x86,mips
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# b/35906875. Note mips already has getuid from SYSCALLS.TXT
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int inotify_init() arm,x86,mips
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uid_t getuid() arm,x86
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# b/36435222
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int remap_file_pages(void *addr, size_t size, int prot, size_t pgoff, int flags) arm,x86,mips
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# b/36449658
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int rename(const char *oldpath, const char *newpath) arm,x86,mips
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# b/36726183. Note arm does not support mmap
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void* mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset) x86,mips
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# Useful new syscalls which we don't yet use in bionic.
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int sched_getattr(pid_t pid, struct sched_attr* attr, unsigned int flags) all
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int sched_setattr(pid_t pid, struct sched_attr* attr, unsigned int size, unsigned int flags) all
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int memfd_create(const char* name, unsigned int flags) all
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int renameat2(int olddirfd, const char* oldpath, int newdirfd, const char* newpath, unsigned int flags) all
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int execveat(int dirfd, const char* pathname, char* const* argv, char* const* envp, int flags) all
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ssize_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
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int mlock2(const void* addr, size_t len, int flags) all
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ssize_t preadv2(int fd, const struct iovec* iov, int iovcnt, off_t offset, int flags) all
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ssize_t pwritev2(int fd, const struct iovec* iov, int iovcnt, off_t offset, int flags) all
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int io_setup(unsigned nr, aio_context_t *ctxp) all
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int io_destroy(aio_context_t ctx) all
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int io_submit(aio_context_t ctx, long nr, struct iocb **iocbpp) all
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int io_getevents(aio_context_t ctx, long min_nr, long max_nr, struct io_event *events, struct timespec *timeout) all
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int io_cancel(aio_context_t ctx, struct iocb *, struct io_event *result) all
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# b/37769298
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int dup2(int oldfd, int newfd) arm,x86,mips
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# b/62779795
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int compat_select:_newselect(int n, unsigned long* inp, unsigned long* outp, unsigned long* exp, struct timeval* timeout) arm,x86,mips
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# b/62090571
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int mkdir(const char *pathname, mode_t mode) arm,x86,mips
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