add syscall consts

Author: david942j

.rubocop.yml

@@ -27,6 +27,9 @@ Metrics/LineLength:
 Metrics/MethodLength:
   Enabled: false
 
+Metrics/PerceivedComplexity:
+  Enabled: false
+
 Rails:
   Enabled: false
 

README.md

@@ -59,7 +59,7 @@ Usage: seccomp-tools dump [exec] [options]
 
 ### dump
 
-Dump the seccomp bpf from a execution file.
+Dump the seccomp bpf from an execution file.
 This work is done by the `ptrace` syscall.
 
 NOTICE: beware of the execution file will be executed.

README.tpl

@@ -35,7 +35,7 @@ SHELL_OUTPUT_OF(seccomp-tools --help dump)
 
 ### dump
 
-Dump the seccomp bpf from a execution file.
+Dump the seccomp bpf from an execution file.
 This work is done by the `ptrace` syscall.
 
 NOTICE: beware of the execution file will be executed.

lib/seccomp-tools/bpf.rb

@@ -19,6 +19,7 @@ def initialize(raw, line)
     end
 
     # Pretty display the disassemble result.
+    # @return [String]
     def disasm
       format(' %04d: 0x%02x 0x%02x 0x%02x 0x%08x  %s',
              line, code, jt, jf, k, decompile)

lib/seccomp-tools/const.rb

@@ -80,5 +80,22 @@ module BPF
         txa: 0x80
       }.freeze
     end
+
+    # Define syscall numbers for all architectures.
+    # Since the list is too long, split it to files in consts/*.rb and load them in this module.
+    module Syscall
+      module_function
+
+      def const_missing(cons)
+        load_const(cons) || super
+      end
+
+      def load_const(cons)
+        arch = cons.to_s.downcase
+        filename = File.join(__dir__, 'consts', "#{arch}.rb")
+        return unless File.exist?(filename)
+        const_set(cons, instance_eval(IO.read(filename)))
+      end
+    end
   end
 end

lib/seccomp-tools/consts/amd64.rb

@@ -0,0 +1,305 @@
+{
+  read: 0,
+  write: 1,
+  open: 2,
+  close: 3,
+  stat: 4,
+  fstat: 5,
+  lstat: 6,
+  poll: 7,
+  lseek: 8,
+  mmap: 9,
+  mprotect: 10,
+  munmap: 11,
+  brk: 12,
+  rt_sigaction: 13,
+  rt_sigprocmask: 14,
+  rt_sigreturn: 15,
+  ioctl: 16,
+  pread: 17,
+  pwrite: 18,
+  readv: 19,
+  writev: 20,
+  access: 21,
+  pipe: 22,
+  select: 23,
+  sched_yield: 24,
+  mremap: 25,
+  msync: 26,
+  mincore: 27,
+  madvise: 28,
+  shmget: 29,
+  shmat: 30,
+  shmctl: 31,
+  dup: 32,
+  dup2: 33,
+  pause: 34,
+  nanosleep: 35,
+  getitimer: 36,
+  alarm: 37,
+  setitimer: 38,
+  getpid: 39,
+  sendfile: 40,
+  socket: 41,
+  connect: 42,
+  accept: 43,
+  sendto: 44,
+  recvfrom: 45,
+  sendmsg: 46,
+  recvmsg: 47,
+  shutdown: 48,
+  bind: 49,
+  listen: 50,
+  getsockname: 51,
+  getpeername: 52,
+  socketpair: 53,
+  setsockopt: 54,
+  getsockopt: 55,
+  clone: 56,
+  fork: 57,
+  vfork: 58,
+  execve: 59,
+  exit: 60,
+  wait4: 61,
+  kill: 62,
+  uname: 63,
+  semget: 64,
+  semop: 65,
+  semctl: 66,
+  shmdt: 67,
+  msgget: 68,
+  msgsnd: 69,
+  msgrcv: 70,
+  msgctl: 71,
+  fcntl: 72,
+  flock: 73,
+  fsync: 74,
+  fdatasync: 75,
+  truncate: 76,
+  ftruncate: 77,
+  getdents: 78,
+  getcwd: 79,
+  chdir: 80,
+  fchdir: 81,
+  rename: 82,
+  mkdir: 83,
+  rmdir: 84,
+  creat: 85,
+  link: 86,
+  unlink: 87,
+  symlink: 88,
+  readlink: 89,
+  chmod: 90,
+  fchmod: 91,
+  chown: 92,
+  fchown: 93,
+  lchown: 94,
+  umask: 95,
+  gettimeofday: 96,
+  getrlimit: 97,
+  getrusage: 98,
+  sysinfo: 99,
+  times: 100,
+  ptrace: 101,
+  getuid: 102,
+  syslog: 103,
+  getgid: 104,
+  setuid: 105,
+  setgid: 106,
+  geteuid: 107,
+  getegid: 108,
+  setpgid: 109,
+  getppid: 110,
+  getpgrp: 111,
+  setsid: 112,
+  setreuid: 113,
+  setregid: 114,
+  getgroups: 115,
+  setgroups: 116,
+  setresuid: 117,
+  getresuid: 118,
+  setresgid: 119,
+  getresgid: 120,
+  getpgid: 121,
+  setfsuid: 122,
+  setfsgid: 123,
+  getsid: 124,
+  capget: 125,
+  capset: 126,
+  rt_sigpending: 127,
+  rt_sigtimedwait: 128,
+  rt_sigqueueinfo: 129,
+  rt_sigsuspend: 130,
+  sigaltstack: 131,
+  utime: 132,
+  mknod: 133,
+  uselib: 134,
+  personality: 135,
+  ustat: 136,
+  statfs: 137,
+  fstatfs: 138,
+  sysfs: 139,
+  getpriority: 140,
+  setpriority: 141,
+  sched_setparam: 142,
+  sched_getparam: 143,
+  sched_setscheduler: 144,
+  sched_getscheduler: 145,
+  sched_get_priority_max: 146,
+  sched_get_priority_min: 147,
+  sched_rr_get_interval: 148,
+  mlock: 149,
+  munlock: 150,
+  mlockall: 151,
+  munlockall: 152,
+  vhangup: 153,
+  modify_ldt: 154,
+  pivot_root: 155,
+  _sysctl: 156,
+  prctl: 157,
+  arch_prctl: 158,
+  adjtimex: 159,
+  setrlimit: 160,
+  chroot: 161,
+  sync: 162,
+  acct: 163,
+  settimeofday: 164,
+  mount: 165,
+  umount2: 166,
+  swapon: 167,
+  swapoff: 168,
+  reboot: 169,
+  sethostname: 170,
+  setdomainname: 171,
+  iopl: 172,
+  ioperm: 173,
+  create_module: 174,
+  init_module: 175,
+  delete_module: 176,
+  get_kernel_syms: 177,
+  query_module: 178,
+  quotactl: 179,
+  nfsservctl: 180,
+  getpmsg: 181,
+  putpmsg: 182,
+  afs_syscall: 183,
+  tuxcall: 184,
+  security: 185,
+  gettid: 186,
+  readahead: 187,
+  setxattr: 188,
+  lsetxattr: 189,
+  fsetxattr: 190,
+  getxattr: 191,
+  lgetxattr: 192,
+  fgetxattr: 193,
+  listxattr: 194,
+  llistxattr: 195,
+  flistxattr: 196,
+  removexattr: 197,
+  lremovexattr: 198,
+  fremovexattr: 199,
+  tkill: 200,
+  time: 201,
+  futex: 202,
+  sched_setaffinity: 203,
+  sched_getaffinity: 204,
+  set_thread_area: 205,
+  io_setup: 206,
+  io_destroy: 207,
+  io_getevents: 208,
+  io_submit: 209,
+  io_cancel: 210,
+  get_thread_area: 211,
+  lookup_dcookie: 212,
+  epoll_create: 213,
+  epoll_ctl_old: 214,
+  epoll_wait_old: 215,
+  remap_file_pages: 216,
+  getdents64: 217,
+  set_tid_address: 218,
+  restart_syscall: 219,
+  semtimedop: 220,
+  fadvise64: 221,
+  timer_create: 222,
+  timer_settime: 223,
+  timer_gettime: 224,
+  timer_getoverrun: 225,
+  timer_delete: 226,
+  clock_settime: 227,
+  clock_gettime: 228,
+  clock_getres: 229,
+  clock_nanosleep: 230,
+  exit_group: 231,
+  epoll_wait: 232,
+  epoll_ctl: 233,
+  tgkill: 234,
+  utimes: 235,
+  vserver: 236,
+  mbind: 237,
+  set_mempolicy: 238,
+  get_mempolicy: 239,
+  mq_open: 240,
+  mq_unlink: 241,
+  mq_timedsend: 242,
+  mq_timedreceive: 243,
+  mq_notify: 244,
+  mq_getsetattr: 245,
+  kexec_load: 246,
+  waitid: 247,
+  add_key: 248,
+  request_key: 249,
+  keyctl: 250,
+  ioprio_set: 251,
+  ioprio_get: 252,
+  inotify_init: 253,
+  inotify_add_watch: 254,
+  inotify_rm_watch: 255,
+  migrate_pages: 256,
+  openat: 257,
+  mkdirat: 258,
+  mknodat: 259,
+  fchownat: 260,
+  futimesat: 261,
+  newfstatat: 262,
+  unlinkat: 263,
+  renameat: 264,
+  linkat: 265,
+  symlinkat: 266,
+  readlinkat: 267,
+  fchmodat: 268,
+  faccessat: 269,
+  pselect6: 270,
+  ppoll: 271,
+  unshare: 272,
+  set_robust_list: 273,
+  get_robust_list: 274,
+  splice: 275,
+  tee: 276,
+  sync_file_range: 277,
+  vmsplice: 278,
+  move_pages: 279,
+  utimensat: 280,
+  epoll_pwait: 281,
+  signalfd: 282,
+  timerfd: 283,
+  eventfd: 284,
+  fallocate: 285,
+  timerfd_settime: 286,
+  timerfd_gettime: 287,
+  accept4: 288,
+  signalfd4: 289,
+  eventfd2: 290,
+  epoll_create1: 291,
+  dup3: 292,
+  pipe2: 293,
+  inotify_init1: 294,
+  preadv: 295,
+  pwritev: 296,
+  rt_tgsigqueueinfo: 297,
+  perf_event_open: 298,
+  recvmmsg: 299,
+  fanotify_init: 300,
+  fanotify_mark: 301,
+  prlimit64: 302
+}