| // Copyright 2021 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #![allow(non_upper_case_globals)] |
| |
| use paste::paste; |
| |
| use crate::types::*; |
| |
| /// Intended to be used with other macros to produce code that needs to handle |
| /// each syscall. |
| macro_rules! for_each_syscall { |
| {$callback:ident $(,$context:ident)*} => { |
| $callback!{ |
| $($context;)* |
| read, |
| write, |
| open, |
| close, |
| stat, |
| fstat, |
| lstat, |
| poll, |
| lseek, |
| mmap, |
| mprotect, |
| munmap, |
| brk, |
| rt_sigaction, |
| rt_sigprocmask, |
| rt_sigreturn, |
| ioctl, |
| pread64, |
| pwrite64, |
| readv, |
| writev, |
| access, |
| pipe, |
| select, |
| sched_yield, |
| mremap, |
| msync, |
| mincore, |
| madvise, |
| shmget, |
| shmat, |
| shmctl, |
| dup, |
| dup2, |
| pause, |
| nanosleep, |
| getitimer, |
| alarm, |
| setitimer, |
| getpid, |
| sendfile, |
| socket, |
| connect, |
| accept, |
| sendto, |
| recvfrom, |
| sendmsg, |
| recvmsg, |
| shutdown, |
| bind, |
| listen, |
| getsockname, |
| getpeername, |
| socketpair, |
| setsockopt, |
| getsockopt, |
| clone, |
| fork, |
| vfork, |
| execve, |
| exit, |
| wait4, |
| kill, |
| uname, |
| semget, |
| semop, |
| semctl, |
| shmdt, |
| msgget, |
| msgsnd, |
| msgrcv, |
| msgctl, |
| fcntl, |
| flock, |
| fsync, |
| fdatasync, |
| truncate, |
| ftruncate, |
| getdents, |
| getcwd, |
| chdir, |
| fchdir, |
| rename, |
| mkdir, |
| rmdir, |
| creat, |
| link, |
| unlink, |
| symlink, |
| readlink, |
| chmod, |
| fchmod, |
| chown, |
| fchown, |
| lchown, |
| umask, |
| gettimeofday, |
| getrlimit, |
| getrusage, |
| sysinfo, |
| times, |
| ptrace, |
| getuid, |
| syslog, |
| getgid, |
| setuid, |
| setgid, |
| geteuid, |
| getegid, |
| setpgid, |
| getppid, |
| getpgrp, |
| setsid, |
| setreuid, |
| setregid, |
| getgroups, |
| setgroups, |
| setresuid, |
| getresuid, |
| setresgid, |
| getresgid, |
| getpgid, |
| setfsuid, |
| setfsgid, |
| getsid, |
| capget, |
| capset, |
| rt_sigpending, |
| rt_sigtimedwait, |
| rt_sigqueueinfo, |
| rt_sigsuspend, |
| sigaltstack, |
| utime, |
| mknod, |
| uselib, |
| personality, |
| ustat, |
| statfs, |
| fstatfs, |
| sysfs, |
| getpriority, |
| setpriority, |
| sched_setparam, |
| sched_getparam, |
| sched_setscheduler, |
| sched_getscheduler, |
| sched_get_priority_max, |
| sched_get_priority_min, |
| sched_rr_get_interval, |
| mlock, |
| munlock, |
| mlockall, |
| munlockall, |
| vhangup, |
| modify_ldt, |
| pivot_root, |
| _sysctl, |
| prctl, |
| arch_prctl, |
| adjtimex, |
| setrlimit, |
| chroot, |
| sync, |
| acct, |
| settimeofday, |
| mount, |
| umount2, |
| swapon, |
| swapoff, |
| reboot, |
| sethostname, |
| setdomainname, |
| iopl, |
| ioperm, |
| create_module, |
| init_module, |
| delete_module, |
| get_kernel_syms, |
| query_module, |
| quotactl, |
| nfsservctl, |
| getpmsg, |
| putpmsg, |
| afs_syscall, |
| tuxcall, |
| security, |
| gettid, |
| readahead, |
| setxattr, |
| lsetxattr, |
| fsetxattr, |
| getxattr, |
| lgetxattr, |
| fgetxattr, |
| listxattr, |
| llistxattr, |
| flistxattr, |
| removexattr, |
| lremovexattr, |
| fremovexattr, |
| tkill, |
| time, |
| futex, |
| sched_setaffinity, |
| sched_getaffinity, |
| set_thread_area, |
| io_setup, |
| io_destroy, |
| io_getevents, |
| io_submit, |
| io_cancel, |
| get_thread_area, |
| lookup_dcookie, |
| epoll_create, |
| epoll_ctl_old, |
| epoll_wait_old, |
| remap_file_pages, |
| getdents64, |
| set_tid_address, |
| restart_syscall, |
| semtimedop, |
| fadvise64, |
| timer_create, |
| timer_settime, |
| timer_gettime, |
| timer_getoverrun, |
| timer_delete, |
| clock_settime, |
| clock_gettime, |
| clock_getres, |
| clock_nanosleep, |
| exit_group, |
| epoll_wait, |
| epoll_ctl, |
| tgkill, |
| utimes, |
| vserver, |
| mbind, |
| set_mempolicy, |
| get_mempolicy, |
| mq_open, |
| mq_unlink, |
| mq_timedsend, |
| mq_timedreceive, |
| mq_notify, |
| mq_getsetattr, |
| kexec_load, |
| waitid, |
| add_key, |
| request_key, |
| keyctl, |
| ioprio_set, |
| ioprio_get, |
| inotify_init, |
| inotify_add_watch, |
| inotify_rm_watch, |
| migrate_pages, |
| openat, |
| mkdirat, |
| mknodat, |
| fchownat, |
| futimesat, |
| newfstatat, |
| unlinkat, |
| renameat, |
| linkat, |
| symlinkat, |
| readlinkat, |
| fchmodat, |
| faccessat, |
| pselect6, |
| ppoll, |
| unshare, |
| set_robust_list, |
| get_robust_list, |
| splice, |
| tee, |
| sync_file_range, |
| vmsplice, |
| move_pages, |
| utimensat, |
| epoll_pwait, |
| signalfd, |
| timerfd_create, |
| eventfd, |
| fallocate, |
| timerfd_settime, |
| timerfd_gettime, |
| accept4, |
| signalfd4, |
| eventfd2, |
| epoll_create1, |
| dup3, |
| pipe2, |
| inotify_init1, |
| preadv, |
| pwritev, |
| rt_tgsigqueueinfo, |
| perf_event_open, |
| recvmmsg, |
| fanotify_init, |
| fanotify_mark, |
| prlimit64, |
| name_to_handle_at, |
| open_by_handle_at, |
| clock_adjtime, |
| syncfs, |
| sendmmsg, |
| setns, |
| getcpu, |
| process_vm_readv, |
| process_vm_writev, |
| kcmp, |
| finit_module, |
| sched_setattr, |
| sched_getattr, |
| renameat2, |
| seccomp, |
| getrandom, |
| memfd_create, |
| kexec_file_load, |
| bpf, |
| execveat, |
| userfaultfd, |
| membarrier, |
| mlock2, |
| copy_file_range, |
| preadv2, |
| pwritev2, |
| pkey_mprotect, |
| pkey_alloc, |
| pkey_free, |
| statx, |
| io_pgetevents, |
| rseq, |
| pidfd_send_signal, |
| io_uring_setup, |
| io_uring_enter, |
| io_uring_register, |
| open_tree, |
| move_mount, |
| fsopen, |
| fsconfig, |
| fsmount, |
| fspick, |
| pidfd_open, |
| clone3, |
| close_range, |
| openat2, |
| pidfd_getfd, |
| faccessat2, |
| process_madvise, |
| } |
| } |
| } |
| |
| /// A system call declaration. |
| /// |
| /// Describes the name of the syscall and its number. |
| /// |
| /// TODO: Add information about the number of arguments (and their types) so |
| /// that we can make strace more useful. |
| pub struct SyscallDecl { |
| pub name: &'static str, |
| pub number: u64, |
| } |
| |
| /// A macro for declaring a const SyscallDecl for a given syscall. |
| /// |
| /// The constant will be called DECL_<SYSCALL>. |
| macro_rules! syscall_decl { |
| {$($name:ident,)*} => { |
| paste! { |
| $(pub const [<DECL_ $name:upper>]: SyscallDecl = SyscallDecl { name: stringify!($name), number: [<__NR_ $name>] as u64};)* |
| } |
| } |
| } |
| |
| // Produce each syscall declaration. |
| for_each_syscall! {syscall_decl} |
| |
| /// A declaration for an unknown syscall. |
| /// |
| /// Useful so that functions that return a SyscallDecl have a sentinel |
| /// to return when they cannot find an appropriate syscall. |
| pub const DECL_UNKNOWN: SyscallDecl = SyscallDecl { name: "<unknown>", number: 0xFFFF }; |
| |
| /// A macro for the body of SyscallDecl::from_number. |
| /// |
| /// Evaluates to the &'static SyscallDecl for the given number or to |
| /// &DECL_UNKNOWN if the number is unknown. |
| macro_rules! syscall_match { |
| {$number:ident; $($name:ident,)*} => { |
| paste! { |
| match $number as u32 { |
| $([<__NR_ $name>] => &[<DECL_ $name:upper>],)* |
| _ => &DECL_UNKNOWN, |
| } |
| } |
| } |
| } |
| |
| impl SyscallDecl { |
| /// The SyscallDecl for the given syscall number. |
| /// |
| /// Returns &DECL_UNKNOWN if the given syscall number is not known. |
| pub fn from_number(number: u64) -> &'static SyscallDecl { |
| for_each_syscall! { syscall_match, number } |
| } |
| } |
