diff options
| -rw-r--r-- | Documentation/process/adding-syscalls.rst | 2 | ||||
| -rw-r--r-- | kernel/sys_ni.c | 433 |
2 files changed, 219 insertions, 216 deletions
diff --git a/Documentation/process/adding-syscalls.rst b/Documentation/process/adding-syscalls.rst index 556613744556..314c8bf6f2a2 100644 --- a/Documentation/process/adding-syscalls.rst +++ b/Documentation/process/adding-syscalls.rst @@ -222,7 +222,7 @@ your new syscall number may get adjusted to resolve conflicts. The file ``kernel/sys_ni.c`` provides a fallback stub implementation of each system call, returning ``-ENOSYS``. Add your new system call here too:: - cond_syscall(sys_xyzzy); + COND_SYSCALL(xyzzy); Your new kernel functionality, and the system call that controls it, should normally be optional, so add a ``CONFIG`` option (typically to diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index 0c1538f5a559..6cafc008f6db 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -17,53 +17,56 @@ asmlinkage long sys_ni_syscall(void) return -ENOSYS; } +#define COND_SYSCALL(name) cond_syscall(sys_##name) +#define COND_SYSCALL_COMPAT(name) cond_syscall(compat_sys_##name) + /* * This list is kept in the same order as include/uapi/asm-generic/unistd.h. * Architecture specific entries go below, followed by deprecated or obsolete * system calls. */ -cond_syscall(sys_io_setup); -cond_syscall(compat_sys_io_setup); -cond_syscall(sys_io_destroy); -cond_syscall(sys_io_submit); -cond_syscall(compat_sys_io_submit); -cond_syscall(sys_io_cancel); -cond_syscall(sys_io_getevents); -cond_syscall(compat_sys_io_getevents); +COND_SYSCALL(io_setup); +COND_SYSCALL_COMPAT(io_setup); +COND_SYSCALL(io_destroy); +COND_SYSCALL(io_submit); +COND_SYSCALL_COMPAT(io_submit); +COND_SYSCALL(io_cancel); +COND_SYSCALL(io_getevents); +COND_SYSCALL_COMPAT(io_getevents); /* fs/xattr.c */ /* fs/dcache.c */ /* fs/cookies.c */ -cond_syscall(sys_lookup_dcookie); -cond_syscall(compat_sys_lookup_dcookie); +COND_SYSCALL(lookup_dcookie); +COND_SYSCALL_COMPAT(lookup_dcookie); /* fs/eventfd.c */ -cond_syscall(sys_eventfd2); +COND_SYSCALL(eventfd2); /* fs/eventfd.c */ -cond_syscall(sys_epoll_create1); -cond_syscall(sys_epoll_ctl); -cond_syscall(sys_epoll_pwait); -cond_syscall(compat_sys_epoll_pwait); +COND_SYSCALL(epoll_create1); +COND_SYSCALL(epoll_ctl); +COND_SYSCALL(epoll_pwait); +COND_SYSCALL_COMPAT(epoll_pwait); /* fs/fcntl.c */ /* fs/inotify_user.c */ -cond_syscall(sys_inotify_init1); -cond_syscall(sys_inotify_add_watch); -cond_syscall(sys_inotify_rm_watch); +COND_SYSCALL(inotify_init1); +COND_SYSCALL(inotify_add_watch); +COND_SYSCALL(inotify_rm_watch); /* fs/ioctl.c */ /* fs/ioprio.c */ -cond_syscall(sys_ioprio_set); -cond_syscall(sys_ioprio_get); +COND_SYSCALL(ioprio_set); +COND_SYSCALL(ioprio_get); /* fs/locks.c */ -cond_syscall(sys_flock); +COND_SYSCALL(flock); /* fs/namei.c */ @@ -76,7 +79,7 @@ cond_syscall(sys_flock); /* fs/pipe.c */ /* fs/quota.c */ -cond_syscall(sys_quotactl); +COND_SYSCALL(quotactl); /* fs/readdir.c */ @@ -87,8 +90,8 @@ cond_syscall(sys_quotactl); /* fs/select.c */ /* fs/signalfd.c */ -cond_syscall(sys_signalfd4); -cond_syscall(compat_sys_signalfd4); +COND_SYSCALL(signalfd4); +COND_SYSCALL_COMPAT(signalfd4); /* fs/splice.c */ @@ -97,20 +100,20 @@ cond_syscall(compat_sys_signalfd4); /* fs/sync.c */ /* fs/timerfd.c */ -cond_syscall(sys_timerfd_create); -cond_syscall(sys_timerfd_settime); -cond_syscall(compat_sys_timerfd_settime); -cond_syscall(sys_timerfd_gettime); -cond_syscall(compat_sys_timerfd_gettime); +COND_SYSCALL(timerfd_create); +COND_SYSCALL(timerfd_settime); +COND_SYSCALL_COMPAT(timerfd_settime); +COND_SYSCALL(timerfd_gettime); +COND_SYSCALL_COMPAT(timerfd_gettime); /* fs/utimes.c */ /* kernel/acct.c */ -cond_syscall(sys_acct); +COND_SYSCALL(acct); /* kernel/capability.c */ -cond_syscall(sys_capget); -cond_syscall(sys_capset); +COND_SYSCALL(capget); +COND_SYSCALL(capset); /* kernel/exec_domain.c */ @@ -119,29 +122,29 @@ cond_syscall(sys_capset); /* kernel/fork.c */ /* kernel/futex.c */ -cond_syscall(sys_futex); -cond_syscall(compat_sys_futex); -cond_syscall(sys_set_robust_list); -cond_syscall(compat_sys_set_robust_list); -cond_syscall(sys_get_robust_list); -cond_syscall(compat_sys_get_robust_list); +COND_SYSCALL(futex); +COND_SYSCALL_COMPAT(futex); +COND_SYSCALL(set_robust_list); +COND_SYSCALL_COMPAT(set_robust_list); +COND_SYSCALL(get_robust_list); +COND_SYSCALL_COMPAT(get_robust_list); /* kernel/hrtimer.c */ /* kernel/itimer.c */ /* kernel/kexec.c */ -cond_syscall(sys_kexec_load); -cond_syscall(compat_sys_kexec_load); +COND_SYSCALL(kexec_load); +COND_SYSCALL_COMPAT(kexec_load); /* kernel/module.c */ -cond_syscall(sys_init_module); -cond_syscall(sys_delete_module); +COND_SYSCALL(init_module); +COND_SYSCALL(delete_module); /* kernel/posix-timers.c */ /* kernel/printk.c */ -cond_syscall(sys_syslog); +COND_SYSCALL(syslog); /* kernel/ptrace.c */ @@ -150,176 +153,176 @@ cond_syscall(sys_syslog); /* kernel/signal.c */ /* kernel/sys.c */ -cond_syscall(sys_setregid); -cond_syscall(sys_setgid); -cond_syscall(sys_setreuid); -cond_syscall(sys_setuid); -cond_syscall(sys_setresuid); -cond_syscall(sys_getresuid); -cond_syscall(sys_setresgid); -cond_syscall(sys_getresgid); -cond_syscall(sys_setfsuid); -cond_syscall(sys_setfsgid); -cond_syscall(sys_setgroups); -cond_syscall(sys_getgroups); +COND_SYSCALL(setregid); +COND_SYSCALL(setgid); +COND_SYSCALL(setreuid); +COND_SYSCALL(setuid); +COND_SYSCALL(setresuid); +COND_SYSCALL(getresuid); +COND_SYSCALL(setresgid); +COND_SYSCALL(getresgid); +COND_SYSCALL(setfsuid); +COND_SYSCALL(setfsgid); +COND_SYSCALL(setgroups); +COND_SYSCALL(getgroups); /* kernel/time.c */ /* kernel/timer.c */ /* ipc/mqueue.c */ -cond_syscall(sys_mq_open); -cond_syscall(compat_sys_mq_open); -cond_syscall(sys_mq_unlink); -cond_syscall(sys_mq_timedsend); -cond_syscall(compat_sys_mq_timedsend); -cond_syscall(sys_mq_timedreceive); -cond_syscall(compat_sys_mq_timedreceive); -cond_syscall(sys_mq_notify); -cond_syscall(compat_sys_mq_notify); -cond_syscall(sys_mq_getsetattr); -cond_syscall(compat_sys_mq_getsetattr); +COND_SYSCALL(mq_open); +COND_SYSCALL_COMPAT(mq_open); +COND_SYSCALL(mq_unlink); +COND_SYSCALL(mq_timedsend); +COND_SYSCALL_COMPAT(mq_timedsend); +COND_SYSCALL(mq_timedreceive); +COND_SYSCALL_COMPAT(mq_timedreceive); +COND_SYSCALL(mq_notify); +COND_SYSCALL_COMPAT(mq_notify); +COND_SYSCALL(mq_getsetattr); +COND_SYSCALL_COMPAT(mq_getsetattr); /* ipc/msg.c */ -cond_syscall(sys_msgget); -cond_syscall(sys_msgctl); -cond_syscall(compat_sys_msgctl); -cond_syscall(sys_msgrcv); -cond_syscall(compat_sys_msgrcv); -cond_syscall(sys_msgsnd); -cond_syscall(compat_sys_msgsnd); +COND_SYSCALL(msgget); +COND_SYSCALL(msgctl); +COND_SYSCALL_COMPAT(msgctl); +COND_SYSCALL(msgrcv); +COND_SYSCALL_COMPAT(msgrcv); +COND_SYSCALL(msgsnd); +COND_SYSCALL_COMPAT(msgsnd); /* ipc/sem.c */ -cond_syscall(sys_semget); -cond_syscall(sys_semctl); -cond_syscall(compat_sys_semctl); -cond_syscall(sys_semtimedop); -cond_syscall(compat_sys_semtimedop); -cond_syscall(sys_semop); +COND_SYSCALL(semget); +COND_SYSCALL(semctl); +COND_SYSCALL_COMPAT(semctl); +COND_SYSCALL(semtimedop); +COND_SYSCALL_COMPAT(semtimedop); +COND_SYSCALL(semop); /* ipc/shm.c */ -cond_syscall(sys_shmget); -cond_syscall(sys_shmctl); -cond_syscall(compat_sys_shmctl); -cond_syscall(sys_shmat); -cond_syscall(compat_sys_shmat); -cond_syscall(sys_shmdt); +COND_SYSCALL(shmget); +COND_SYSCALL(shmctl); +COND_SYSCALL_COMPAT(shmctl); +COND_SYSCALL(shmat); +COND_SYSCALL_COMPAT(shmat); +COND_SYSCALL(shmdt); /* net/socket.c */ -cond_syscall(sys_socket); -cond_syscall(sys_socketpair); -cond_syscall(sys_bind); -cond_syscall(sys_listen); -cond_syscall(sys_accept); -cond_syscall(sys_connect); -cond_syscall(sys_getsockname); -cond_syscall(sys_getpeername); -cond_syscall(sys_setsockopt); -cond_syscall(compat_sys_setsockopt); -cond_syscall(sys_getsockopt); -cond_syscall(compat_sys_getsockopt); -cond_syscall(sys_sendto); -cond_syscall(sys_shutdown); -cond_syscall(sys_recvfrom); -cond_syscall(compat_sys_recvfrom); -cond_syscall(sys_sendmsg); -cond_syscall(compat_sys_sendmsg); -cond_syscall(sys_recvmsg); -cond_syscall(compat_sys_recvmsg); +COND_SYSCALL(socket); +COND_SYSCALL(socketpair); +COND_SYSCALL(bind); +COND_SYSCALL(listen); +COND_SYSCALL(accept); +COND_SYSCALL(connect); +COND_SYSCALL(getsockname); +COND_SYSCALL(getpeername); +COND_SYSCALL(setsockopt); +COND_SYSCALL_COMPAT(setsockopt); +COND_SYSCALL(getsockopt); +COND_SYSCALL_COMPAT(getsockopt); +COND_SYSCALL(sendto); +COND_SYSCALL(shutdown); +COND_SYSCALL(recvfrom); +COND_SYSCALL_COMPAT(recvfrom); +COND_SYSCALL(sendmsg); +COND_SYSCALL_COMPAT(sendmsg); +COND_SYSCALL(recvmsg); +COND_SYSCALL_COMPAT(recvmsg); /* mm/filemap.c */ /* mm/nommu.c, also with MMU */ -cond_syscall(sys_mremap); +COND_SYSCALL(mremap); /* security/keys/keyctl.c */ -cond_syscall(sys_add_key); -cond_syscall(sys_request_key); -cond_syscall(sys_keyctl); -cond_syscall(compat_sys_keyctl); +COND_SYSCALL(add_key); +COND_SYSCALL(request_key); +COND_SYSCALL(keyctl); +COND_SYSCALL_COMPAT(keyctl); /* arch/example/kernel/sys_example.c */ /* mm/fadvise.c */ -cond_syscall(sys_fadvise64_64); +COND_SYSCALL(fadvise64_64); /* mm/, CONFIG_MMU only */ -cond_syscall(sys_swapon); -cond_syscall(sys_swapoff); -cond_syscall(sys_mprotect); -cond_syscall(sys_msync); -cond_syscall(sys_mlock); -cond_syscall(sys_munlock); -cond_syscall(sys_mlockall); -cond_syscall(sys_munlockall); -cond_syscall(sys_mincore); -cond_syscall(sys_madvise); -cond_syscall(sys_remap_file_pages); -cond_syscall(sys_mbind); -cond_syscall(compat_sys_mbind); -cond_syscall(sys_get_mempolicy); -cond_syscall(compat_sys_get_mempolicy); -cond_syscall(sys_set_mempolicy); -cond_syscall(compat_sys_set_mempolicy); -cond_syscall(sys_migrate_pages); -cond_syscall(compat_sys_migrate_pages); -cond_syscall(sys_move_pages); -cond_syscall(compat_sys_move_pages); - -cond_syscall(sys_perf_event_open); -cond_syscall(sys_accept4); -cond_syscall(sys_recvmmsg); -cond_syscall(compat_sys_recvmmsg); +COND_SYSCALL(swapon); +COND_SYSCALL(swapoff); +COND_SYSCALL(mprotect); +COND_SYSCALL(msync); +COND_SYSCALL(mlock); +COND_SYSCALL(munlock); +COND_SYSCALL(mlockall); +COND_SYSCALL(munlockall); +COND_SYSCALL(mincore); +COND_SYSCALL(madvise); +COND_SYSCALL(remap_file_pages); +COND_SYSCALL(mbind); +COND_SYSCALL_COMPAT(mbind); +COND_SYSCALL(get_mempolicy); +COND_SYSCALL_COMPAT(get_mempolicy); +COND_SYSCALL(set_mempolicy); +COND_SYSCALL_COMPAT(set_mempolicy); +COND_SYSCALL(migrate_pages); +COND_SYSCALL_COMPAT(migrate_pages); +COND_SYSCALL(move_pages); +COND_SYSCALL_COMPAT(move_pages); + +COND_SYSCALL(perf_event_open); +COND_SYSCALL(accept4); +COND_SYSCALL(recvmmsg); +COND_SYSCALL_COMPAT(recvmmsg); /* * Architecture specific syscalls: see further below */ /* fanotify */ -cond_syscall(sys_fanotify_init); -cond_syscall(sys_fanotify_mark); +COND_SYSCALL(fanotify_init); +COND_SYSCALL(fanotify_mark); /* open by handle */ -cond_syscall(sys_name_to_handle_at); -cond_syscall(sys_open_by_handle_at); -cond_syscall(compat_sys_open_by_handle_at); +COND_SYSCALL(name_to_handle_at); +COND_SYSCALL(open_by_handle_at); +COND_SYSCALL_COMPAT(open_by_handle_at); -cond_syscall(sys_sendmmsg); -cond_syscall(compat_sys_sendmmsg); -cond_syscall(sys_process_vm_readv); -cond_syscall(compat_sys_process_vm_readv); -cond_syscall(sys_process_vm_writev); -cond_syscall(compat_sys_process_vm_writev); +COND_SYSCALL(sendmmsg); +COND_SYSCALL_COMPAT(sendmmsg); +COND_SYSCALL(process_vm_readv); +COND_SYSCALL_COMPAT(process_vm_readv); +COND_SYSCALL(process_vm_writev); +COND_SYSCALL_COMPAT(process_vm_writev); /* compare kernel pointers */ -cond_syscall(sys_kcmp); +COND_SYSCALL(kcmp); -cond_syscall(sys_finit_module); +COND_SYSCALL(finit_module); /* operate on Secure Computing state */ -cond_syscall(sys_seccomp); +COND_SYSCALL(seccomp); -cond_syscall(sys_memfd_create); +COND_SYSCALL(memfd_create); /* access BPF programs and maps */ -cond_syscall(sys_bpf); +COND_SYSCALL(bpf); /* execveat */ -cond_syscall(sys_execveat); +COND_SYSCALL(execveat); -cond_syscall(sys_userfaultfd); +COND_SYSCALL(userfaultfd); /* membarrier */ -cond_syscall(sys_membarrier); +COND_SYSCALL(membarrier); -cond_syscall(sys_mlock2); +COND_SYSCALL(mlock2); -cond_syscall(sys_copy_file_range); +COND_SYSCALL(copy_file_range); /* memory protection keys */ -cond_syscall(sys_pkey_mprotect); -cond_syscall(sys_pkey_alloc); -cond_syscall(sys_pkey_free); +COND_SYSCALL(pkey_mprotect); +COND_SYSCALL(pkey_alloc); +COND_SYSCALL(pkey_free); /* @@ -327,35 +330,35 @@ cond_syscall(sys_pkey_free); */ /* pciconfig: alpha, arm, arm64, ia64, sparc */ -cond_syscall(sys_pciconfig_read); -cond_syscall(sys_pciconfig_write); -cond_syscall(sys_pciconfig_iobase); +COND_SYSCALL(pciconfig_read); +COND_SYSCALL(pciconfig_write); +COND_SYSCALL(pciconfig_iobase); /* sys_socketcall: arm, mips, x86, ... */ -cond_syscall(sys_socketcall); -cond_syscall(compat_sys_socketcall); +COND_SYSCALL(socketcall); +COND_SYSCALL_COMPAT(socketcall); /* compat syscalls for arm64, x86, ... */ -cond_syscall(compat_sys_sysctl); -cond_syscall(compat_sys_fanotify_mark); +COND_SYSCALL_COMPAT(sysctl); +COND_SYSCALL_COMPAT(fanotify_mark); /* x86 */ -cond_syscall(sys_vm86old); -cond_syscall(sys_modify_ldt); -cond_syscall(compat_sys_quotactl32); -cond_syscall(sys_vm86); -cond_syscall(sys_kexec_file_load); +COND_SYSCALL(vm86old); +COND_SYSCALL(modify_ldt); +COND_SYSCALL_COMPAT(quotactl32); +COND_SYSCALL(vm86); +COND_SYSCALL(kexec_file_load); /* s390 */ -cond_syscall(sys_s390_pci_mmio_read); -cond_syscall(sys_s390_pci_mmio_write); -cond_syscall(compat_sys_s390_ipc); +COND_SYSCALL(s390_pci_mmio_read); +COND_SYSCALL(s390_pci_mmio_write); +COND_SYSCALL_COMPAT(s390_ipc); /* powerpc */ cond_syscall(ppc_rtas); -cond_syscall(sys_spu_run); -cond_syscall(sys_spu_create); -cond_syscall(sys_subpage_prot); +COND_SYSCALL(spu_run); +COND_SYSCALL(spu_create); +COND_SYSCALL(subpage_prot); /* @@ -364,22 +367,22 @@ cond_syscall(sys_subpage_prot); */ /* __ARCH_WANT_SYSCALL_NO_FLAGS */ -cond_syscall(sys_epoll_create); -cond_syscall(sys_inotify_init); -cond_syscall(sys_eventfd); -cond_syscall(sys_signalfd); -cond_syscall(compat_sys_signalfd); +COND_SYSCALL(epoll_create); +COND_SYSCALL(inotify_init); +COND_SYSCALL(eventfd); +COND_SYSCALL(signalfd); +COND_SYSCALL_COMPAT(signalfd); /* __ARCH_WANT_SYSCALL_OFF_T */ -cond_syscall(sys_fadvise64); +COND_SYSCALL(fadvise64); /* __ARCH_WANT_SYSCALL_DEPRECATED */ -cond_syscall(sys_epoll_wait); -cond_syscall(sys_recv); -cond_syscall(compat_sys_recv); -cond_syscall(sys_send); -cond_syscall(sys_bdflush); -cond_syscall(sys_uselib); +COND_SYSCALL(epoll_wait); +COND_SYSCALL(recv); +COND_SYSCALL_COMPAT(recv); +COND_SYSCALL(send); +COND_SYSCALL(bdflush); +COND_SYSCALL(uselib); /* @@ -387,33 +390,33 @@ cond_syscall(sys_uselib); */ /* obsolete: SGETMASK_SYSCALL */ -cond_syscall(sys_sgetmask); -cond_syscall(sys_ssetmask); +COND_SYSCALL(sgetmask); +COND_SYSCALL(ssetmask); /* obsolete: SYSFS_SYSCALL */ -cond_syscall(sys_sysfs); +COND_SYSCALL(sysfs); /* obsolete: __ARCH_WANT_SYS_IPC */ -cond_syscall(sys_ipc); -cond_syscall(compat_sys_ipc); +COND_SYSCALL(ipc); +COND_SYSCALL_COMPAT(ipc); /* obsolete: UID16 */ -cond_syscall(sys_chown16); -cond_syscall(sys_fchown16); -cond_syscall(sys_getegid16); -cond_syscall(sys_geteuid16); -cond_syscall(sys_getgid16); -cond_syscall(sys_getgroups16); -cond_syscall(sys_getresgid16); -cond_syscall(sys_getresuid16); -cond_syscall(sys_getuid16); -cond_syscall(sys_lchown16); -cond_syscall(sys_setfsgid16); -cond_syscall(sys_setfsuid16); -cond_syscall(sys_setgid16); -cond_syscall(sys_setgroups16); -cond_syscall(sys_setregid16); -cond_syscall(sys_setresgid16); -cond_syscall(sys_setresuid16); -cond_syscall(sys_setreuid16); -cond_syscall(sys_setuid16); +COND_SYSCALL(chown16); +COND_SYSCALL(fchown16); +COND_SYSCALL(getegid16); +COND_SYSCALL(geteuid16); +COND_SYSCALL(getgid16); +COND_SYSCALL(getgroups16); +COND_SYSCALL(getresgid16); +COND_SYSCALL(getresuid16); +COND_SYSCALL(getuid16); +COND_SYSCALL(lchown16); +COND_SYSCALL(setfsgid16); +COND_SYSCALL(setfsuid16); +COND_SYSCALL(setgid16); +COND_SYSCALL(setgroups16); +COND_SYSCALL(setregid16); +COND_SYSCALL(setresgid16); +COND_SYSCALL(setresuid16); +COND_SYSCALL(setreuid16); +COND_SYSCALL(setuid16); |