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Mini Shell
Mini Shell
# Copyright 2017 Sasha Goldshtein
# Copyright 2018 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""syscall.py contains functions useful for mapping between syscall names and numbers"""
import subprocess
import platform
#
# Syscall table for Linux x86_64, not very recent.
# Automatically generated from strace/linux/x86_64/syscallent.h using the
# following command:
#
# cat syscallent.h | awk -F, '{ gsub(/[ \t"}]/, "", $4);
# gsub(/[\[\] \t{]/, "", $1); split($1, a, "=");
# print " "a[1]": b\""$4"\","; }
# BEGIN { print "syscalls = {" }
# END { print "}" '}
syscalls = {
0: b"read",
1: b"write",
2: b"open",
3: b"close",
4: b"stat",
5: b"fstat",
6: b"lstat",
7: b"poll",
8: b"lseek",
9: b"mmap",
10: b"mprotect",
11: b"munmap",
12: b"brk",
13: b"rt_sigaction",
14: b"rt_sigprocmask",
15: b"rt_sigreturn",
16: b"ioctl",
17: b"pread64",
18: b"pwrite64",
19: b"readv",
20: b"writev",
21: b"access",
22: b"pipe",
23: b"select",
24: b"sched_yield",
25: b"mremap",
26: b"msync",
27: b"mincore",
28: b"madvise",
29: b"shmget",
30: b"shmat",
31: b"shmctl",
32: b"dup",
33: b"dup2",
34: b"pause",
35: b"nanosleep",
36: b"getitimer",
37: b"alarm",
38: b"setitimer",
39: b"getpid",
40: b"sendfile",
41: b"socket",
42: b"connect",
43: b"accept",
44: b"sendto",
45: b"recvfrom",
46: b"sendmsg",
47: b"recvmsg",
48: b"shutdown",
49: b"bind",
50: b"listen",
51: b"getsockname",
52: b"getpeername",
53: b"socketpair",
54: b"setsockopt",
55: b"getsockopt",
56: b"clone",
57: b"fork",
58: b"vfork",
59: b"execve",
60: b"exit",
61: b"wait4",
62: b"kill",
63: b"uname",
64: b"semget",
65: b"semop",
66: b"semctl",
67: b"shmdt",
68: b"msgget",
69: b"msgsnd",
70: b"msgrcv",
71: b"msgctl",
72: b"fcntl",
73: b"flock",
74: b"fsync",
75: b"fdatasync",
76: b"truncate",
77: b"ftruncate",
78: b"getdents",
79: b"getcwd",
80: b"chdir",
81: b"fchdir",
82: b"rename",
83: b"mkdir",
84: b"rmdir",
85: b"creat",
86: b"link",
87: b"unlink",
88: b"symlink",
89: b"readlink",
90: b"chmod",
91: b"fchmod",
92: b"chown",
93: b"fchown",
94: b"lchown",
95: b"umask",
96: b"gettimeofday",
97: b"getrlimit",
98: b"getrusage",
99: b"sysinfo",
100: b"times",
101: b"ptrace",
102: b"getuid",
103: b"syslog",
104: b"getgid",
105: b"setuid",
106: b"setgid",
107: b"geteuid",
108: b"getegid",
109: b"setpgid",
110: b"getppid",
111: b"getpgrp",
112: b"setsid",
113: b"setreuid",
114: b"setregid",
115: b"getgroups",
116: b"setgroups",
117: b"setresuid",
118: b"getresuid",
119: b"setresgid",
120: b"getresgid",
121: b"getpgid",
122: b"setfsuid",
123: b"setfsgid",
124: b"getsid",
125: b"capget",
126: b"capset",
127: b"rt_sigpending",
128: b"rt_sigtimedwait",
129: b"rt_sigqueueinfo",
130: b"rt_sigsuspend",
131: b"sigaltstack",
132: b"utime",
133: b"mknod",
134: b"uselib",
135: b"personality",
136: b"ustat",
137: b"statfs",
138: b"fstatfs",
139: b"sysfs",
140: b"getpriority",
141: b"setpriority",
142: b"sched_setparam",
143: b"sched_getparam",
144: b"sched_setscheduler",
145: b"sched_getscheduler",
146: b"sched_get_priority_max",
147: b"sched_get_priority_min",
148: b"sched_rr_get_interval",
149: b"mlock",
150: b"munlock",
151: b"mlockall",
152: b"munlockall",
153: b"vhangup",
154: b"modify_ldt",
155: b"pivot_root",
156: b"_sysctl",
157: b"prctl",
158: b"arch_prctl",
159: b"adjtimex",
160: b"setrlimit",
161: b"chroot",
162: b"sync",
163: b"acct",
164: b"settimeofday",
165: b"mount",
166: b"umount2",
167: b"swapon",
168: b"swapoff",
169: b"reboot",
170: b"sethostname",
171: b"setdomainname",
172: b"iopl",
173: b"ioperm",
174: b"create_module",
175: b"init_module",
176: b"delete_module",
177: b"get_kernel_syms",
178: b"query_module",
179: b"quotactl",
180: b"nfsservctl",
181: b"getpmsg",
182: b"putpmsg",
183: b"afs_syscall",
184: b"tuxcall",
185: b"security",
186: b"gettid",
187: b"readahead",
188: b"setxattr",
189: b"lsetxattr",
190: b"fsetxattr",
191: b"getxattr",
192: b"lgetxattr",
193: b"fgetxattr",
194: b"listxattr",
195: b"llistxattr",
196: b"flistxattr",
197: b"removexattr",
198: b"lremovexattr",
199: b"fremovexattr",
200: b"tkill",
201: b"time",
202: b"futex",
203: b"sched_setaffinity",
204: b"sched_getaffinity",
205: b"set_thread_area",
206: b"io_setup",
207: b"io_destroy",
208: b"io_getevents",
209: b"io_submit",
210: b"io_cancel",
211: b"get_thread_area",
212: b"lookup_dcookie",
213: b"epoll_create",
214: b"epoll_ctl_old",
215: b"epoll_wait_old",
216: b"remap_file_pages",
217: b"getdents64",
218: b"set_tid_address",
219: b"restart_syscall",
220: b"semtimedop",
221: b"fadvise64",
222: b"timer_create",
223: b"timer_settime",
224: b"timer_gettime",
225: b"timer_getoverrun",
226: b"timer_delete",
227: b"clock_settime",
228: b"clock_gettime",
229: b"clock_getres",
230: b"clock_nanosleep",
231: b"exit_group",
232: b"epoll_wait",
233: b"epoll_ctl",
234: b"tgkill",
235: b"utimes",
236: b"vserver",
237: b"mbind",
238: b"set_mempolicy",
239: b"get_mempolicy",
240: b"mq_open",
241: b"mq_unlink",
242: b"mq_timedsend",
243: b"mq_timedreceive",
244: b"mq_notify",
245: b"mq_getsetattr",
246: b"kexec_load",
247: b"waitid",
248: b"add_key",
249: b"request_key",
250: b"keyctl",
251: b"ioprio_set",
252: b"ioprio_get",
253: b"inotify_init",
254: b"inotify_add_watch",
255: b"inotify_rm_watch",
256: b"migrate_pages",
257: b"openat",
258: b"mkdirat",
259: b"mknodat",
260: b"fchownat",
261: b"futimesat",
262: b"newfstatat",
263: b"unlinkat",
264: b"renameat",
265: b"linkat",
266: b"symlinkat",
267: b"readlinkat",
268: b"fchmodat",
269: b"faccessat",
270: b"pselect6",
271: b"ppoll",
272: b"unshare",
273: b"set_robust_list",
274: b"get_robust_list",
275: b"splice",
276: b"tee",
277: b"sync_file_range",
278: b"vmsplice",
279: b"move_pages",
280: b"utimensat",
281: b"epoll_pwait",
282: b"signalfd",
283: b"timerfd_create",
284: b"eventfd",
285: b"fallocate",
286: b"timerfd_settime",
287: b"timerfd_gettime",
288: b"accept4",
289: b"signalfd4",
290: b"eventfd2",
291: b"epoll_create1",
292: b"dup3",
293: b"pipe2",
294: b"inotify_init1",
295: b"preadv",
296: b"pwritev",
297: b"rt_tgsigqueueinfo",
298: b"perf_event_open",
299: b"recvmmsg",
300: b"fanotify_init",
301: b"fanotify_mark",
302: b"prlimit64",
303: b"name_to_handle_at",
304: b"open_by_handle_at",
305: b"clock_adjtime",
306: b"syncfs",
307: b"sendmmsg",
308: b"setns",
309: b"getcpu",
310: b"process_vm_readv",
311: b"process_vm_writev",
312: b"kcmp",
313: b"finit_module",
314: b"sched_setattr",
315: b"sched_getattr",
316: b"renameat2",
317: b"seccomp",
318: b"getrandom",
319: b"memfd_create",
320: b"kexec_file_load",
321: b"bpf",
322: b"execveat",
323: b"userfaultfd",
324: b"membarrier",
325: b"mlock2",
326: b"copy_file_range",
327: b"preadv2",
328: b"pwritev2",
329: b"pkey_mprotect",
330: b"pkey_alloc",
331: b"pkey_free",
332: b"statx",
333: b"io_pgetevents",
334: b"rseq",
}
# Try to use ausyscall if it is available, because it can give us an up-to-date
# list of syscalls for various architectures, rather than the x86-64 hardcoded
# list above.
def _parse_syscall(line):
parts = line.split()
return (int(parts[0]), parts[1].strip())
try:
# Skip the first line, which is a header. The rest of the lines are simply
# SYSCALL_NUM\tSYSCALL_NAME pairs.
out = subprocess.check_output(['ausyscall', '--dump'], stderr=subprocess.STDOUT)
# remove the first line of expected output
out = out.split(b'\n',1)[1]
syscalls = dict(map(_parse_syscall, out.strip().split(b'\n')))
except Exception as e:
if platform.machine() == "x86_64":
pass
else:
raise Exception("ausyscall: command not found")
def syscall_name(syscall_num):
"""Return the syscall name for the particular syscall number."""
return syscalls.get(syscall_num, b"[unknown: %d]" % syscall_num)
Zerion Mini Shell 1.0