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Files
BSc-Thesis/proj/server/src/intercept/__init__.py

698 lines
32 KiB
Python

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from __future__ import annotations
from typing import Optional, TypedDict, NamedTuple, NotRequired, BinaryIO
from socketserver import UnixStreamServer, StreamRequestHandler, ThreadingMixIn
import os
import re
type Pointer = int
class PointerTo[T](NamedTuple):
ptr: Pointer
target: T
class Constant(NamedTuple):
raw: int
name: str
class Flags(NamedTuple):
bitfield: int
flags: list[str]
StructTimeSpec = TypedDict('StructTimeSpec', {'tv_sec': int, 'tv_nsec': int})
StructSigAction = TypedDict('StructSigAction', {'sa_flags': Flags, 'sa_handler': NotRequired[Pointer], 'sa_sigaction': NotRequired[Pointer], 'sa_mask': list[Constant]})
StructSockAddr = TypedDict('StructSockAddr', {'sa_family': Constant, 'sa_data': NotRequired[bytes],
'sun_path': NotRequired[bytes],
'sin_addr': NotRequired[bytes], 'sin_port': NotRequired[int],
'sin6_addr': NotRequired[bytes], 'sin6_port': NotRequired[int], 'sin6_scope_id': NotRequired[int]})
StructAddrInfo = TypedDict('StructAddrInfo', {'ai_flags': Flags, 'ai_family': Constant, 'ai_socktype': Constant, 'ai_protocol': int, 'ai_addrlen': int,
'ai_addr': PointerTo[StructSockAddr],
'ai_canonname': PointerTo[bytes], 'ai_next': Pointer})
StructMsgHdr = TypedDict('StructMsgHdr', {})
RET_ADDR_RE = re.compile(r': *((0x)?[0-9a-fA-Fx]+) *\((.+?)\+(.+?)(, *([^:]+?))?(, *(([^:]+?):([0-9]+)))?\)$')
class FunctionCallId:
func_name: str
ret_addr: int
obj_path: str
rel_ret_addr: int
sym_name: Optional[str] = None
src_file_name: Optional[str] = None
src_line_num: Optional[int] = None
@property
def obj_name(self) -> str:
return self.obj_path.split('/')[-1]
@staticmethod
def for_exit() -> FunctionCallId:
call_id = FunctionCallId()
call_id.func_name = 'exit'
call_id.obj_path = 'sys'
call_id.ret_addr = 0
call_id.rel_ret_addr = 0
return call_id
@property
def discriminator(self) -> str:
discr = [f'{self.obj_name}+0x{self.rel_ret_addr:x}']
if self.sym_name:
discr.append(self.sym_name)
if self.src_file_name and self.src_line_num:
discr.append(f'{self.src_file_name}:{self.src_line_num}')
return ', '.join(discr)
def __eq__(self, other) -> bool:
if not isinstance(other, FunctionCallId):
return False
return (self.func_name, self.obj_path, self.rel_ret_addr) == (other.func_name, other.obj_path, other.rel_ret_addr)
def __hash__(self) -> int:
return hash((self.func_name, self.obj_path, self.rel_ret_addr))
def __str__(self) -> str:
return self.func_name + ', ' + self.discriminator
def __repr__(self) -> str:
return f'<{self}>'
class ThreadedUnixStreamServer(ThreadingMixIn, UnixStreamServer):
pass
class Parser:
rfile: BinaryIO
wfile: Optional[BinaryIO]
pid: Optional[int]
tid: Optional[int]
path: Optional[str]
stack: dict[tuple[int, int], list[tuple[int, int, str, Optional[str], Optional[str], Optional[int], str, tuple]]]
ret_addr: int
rel_ret_addr: int
dli_file_name: str
dli_sym_name: Optional[str]
src_file_name: Optional[str]
src_line_num: Optional[int]
def __init__(self, rfile: BinaryIO, wfile: BinaryIO = None):
self.rfile = rfile
self.wfile = wfile
self.stack = {}
self.pid = None
self.path = None
def get_call_id(self, func_name: str) -> FunctionCallId:
call_id = FunctionCallId()
call_id.func_name = func_name
call_id.ret_addr = self.ret_addr
call_id.obj_path = self.dli_file_name
call_id.rel_ret_addr = self.rel_ret_addr
call_id.sym_name = self.dli_sym_name
call_id.src_file_name = self.src_file_name
call_id.src_line_num = self.src_line_num
return call_id
def before(self) -> None: pass
def after(self) -> None: pass
def before_fallback(self, func_name: str, *args) -> str: pass
def after_fallback(self, func_name: str, *args, **kwargs) -> None: pass
def parse(self):
self.before()
try:
while True:
msg = self.rfile.readline()
if not msg:
return
self.handle_msg(msg)
finally:
self.after()
@staticmethod
def parse_str(argument: str) -> tuple[bytes, int]:
if not (len(argument) >= 2 and argument[0] == '"'):
raise ValueError()
idx = 1
esc, fin = False, False
data = b''
tmp = None
for ch in argument[1:]:
idx += 1
if fin:
if ch in (' ', '\t'):
continue
elif ch in (',', ']'):
idx -= 1
break
elif tmp:
tmp += ch
if len(tmp) == 2:
data += bytes([int(tmp, 16)])
tmp = None
elif esc:
if ch in ('\\', '"'):
data += ch.encode('ascii')
esc = False
elif ch == 'x':
tmp = ''
esc = False
elif ch in ('n', 'r'):
data += b'\n' if ch == 'n' else b'\r'
esc = False
else:
raise ValueError(ch)
elif ch == '"':
fin = True
elif ch == '\\':
esc = True
else:
data += ch.encode('utf-8')
if not fin:
raise ValueError()
return data, idx
@staticmethod
def parse_arg(argument: str) -> tuple[any, int]:
if argument == '':
return None, 0
m = re.match(r'^\s*(\(nil\)|NULL|null|nullptr)\s*(,|]|}|$)', argument)
if m:
return 0, len(m.group(0)) - (1 if m.group(2) in ('}', ']') else 0)
m = re.match(r'\s*"', argument)
if m:
idx = len(m.group(0)) - 1
s, i = Parser.parse_str(argument[idx:])
idx += i
if idx < len(argument) and argument[idx] in ',;':
idx += 1
return s, idx
m = re.match(r'\s*\[', argument)
if m:
idx = len(m.group(0))
s, i = Parser.parse_args(argument[idx:])
idx += i
if idx < len(argument) and argument[idx] in ',;':
idx += 1
return s, idx
m = re.match(r'\s*\{', argument)
if m:
idx = len(m.group(0))
s, i = Parser.parse_args(argument[idx:], named=True)
idx += i
if idx < len(argument) and argument[idx] in ',;':
idx += 1
return s, idx
m = re.match(r'^\s*(.*?)([,:\]}]|$)', argument)
a, e = m.group(1), m.group(2)
idx = len(m.group(0))
if a.startswith('0x'):
val = int(a[2:], 16)
elif a.startswith('0') and len(a) > 1:
val = int(a[1:], 8)
elif a in ('(nil)', 'NULL', 'null', 'nullptr'):
val = 0
else:
val = int(a, 10)
if e in (',', ''):
return val, idx
elif e in ('}', ']'):
return val, idx - 1
if argument[idx] == '[':
idx += 1
l, i = Parser.parse_args(argument[idx:])
idx += i
if idx < len(argument) and argument[idx] == ',':
idx += 1
return PointerTo(val, list(l)), idx
elif argument[idx] == '|':
m = re.match(r'^[| A-Za-z0-9_]*', argument[idx:])
flags = m.group(0)
if not flags.startswith('|') or not flags.endswith('|'):
raise ValueError()
idx += len(flags)
if idx < len(argument) and argument[idx] == ',':
idx += 1
flags = [f.strip() for f in flags[1:-1].split('|') if len(f.strip()) > 0]
return Flags(val, flags), idx
elif argument[idx] == '"':
s, i = Parser.parse_str(argument[idx:])
idx += i
if idx < len(argument) and argument[idx] == ',':
idx += 1
return PointerTo(val, s), idx
elif argument[idx] == '{':
idx += 1
l, i = Parser.parse_args(argument[idx:], named=True)
idx += i
if idx < len(argument) and argument[idx] == ',':
idx += 1
return PointerTo(val, l), idx
else:
m = re.match(r'0x[0-9a-fA-F]+|[0-9]+|\(nil\)', argument[idx:])
if m is not None:
value = m.group(0)
idx += len(value)
if idx < len(argument) and argument[idx] == ',':
idx += 1
value = int(value, 0) if value != '(nil)' else 0
return PointerTo(val, value), idx
m = re.match(r'[A-Z0-9_]+|\?', argument[idx:])
if m is not None:
value = m.group(0)
idx += len(value)
if idx < len(argument) and argument[idx] == ',':
idx += 1
return Constant(val, value), idx
raise ValueError()
@staticmethod
def parse_args(arguments: str, named: bool = False, ret: bool = False) -> tuple[tuple or dict, int]:
args = [] if not named else {}
idx = 0
name = None
while idx < len(arguments):
if arguments[idx] == ']' and not named or arguments[idx] == '}' and named:
idx += 1
break
elif ret and named:
m = re.match(r'^\s*([^=]+)=', arguments[idx:])
idx += len(m.group(0))
name = m.group(1)
elif named:
m = re.match(r'^\s*([^:]+):', arguments[idx:])
idx += len(m.group(0))
name = m.group(1)
val, i = Parser.parse_arg(arguments[idx:])
if named:
args[name] = val
else:
args.append(val)
idx += i
return tuple(args) if not named else args, idx
def handle_msg(self, msg: bytes):
timestamp, pid, tid, data = msg.rstrip(b'\n').split(b' ', 3)
self.pid, self.tid = int(pid), int(tid)
if len(self.stack) == 0:
self.stack[(self.pid, self.tid)] = []
elif (self.pid, self.tid) not in self.stack:
self.stack[(self.pid, self.tid)] = []
if not data.startswith(b'return ') and not data == b'return':
call = data.decode('utf-8')
#print(f'[{self.pid}][{self.tid}] {call}')
func_name = call[:call.find('(')]
ret = call[call.rfind(': '):]
m = RET_ADDR_RE.match(ret)
g_ret, _, g_fname, g_rel, _, g_sym, _, _, src_fname, src_line = m.groups()
self.ret_addr = int(g_ret, 0)
self.rel_ret_addr = int(g_rel, 0)
self.dli_file_name = g_fname
self.dli_sym_name = g_sym
self.src_file_name = src_fname
self.src_line_num = int(src_line, 0) if src_line else None
args, _ = Parser.parse_args(call[call.find('(') + 1:call.rfind(': ') - 1])
self.stack[(self.pid, self.tid)].append(
(self.ret_addr, self.rel_ret_addr,
self.dli_file_name, self.dli_sym_name,
self.src_file_name, self.src_line_num,
func_name, args))
if func_name == 'fork':
self.stack[(0, 0)] = self.stack[(self.pid, self.tid)][:]
try:
func = getattr(self, f'before_{func_name}')
if not callable(func):
func = None
except AttributeError:
func = None
try:
if func is None:
raise NotImplementedError()
command = func(*args) or self.before_fallback(func_name, *args) or 'ok'
except NotImplementedError:
command = self.before_fallback(func_name, *args) or 'ok'
if self.wfile:
#print(f'[{self.pid}][{self.tid}] -> {command}')
self.wfile.write(command.encode('utf-8') + b'\n')
else:
ret = data.decode('utf-8')
ret = ret.split(';', 1)
other_vals = ret[1].strip() if len(ret) > 1 else ''
ret_value, _ = Parser.parse_arg(ret[0][7:])
kwargs = {}
if other_vals.startswith('optind '):
ret = other_vals[7:].split(';', 1)
kwargs['optind'] = int(ret[0].strip())
other_vals = ret[1].strip() if len(ret) > 1 else ''
if other_vals.startswith('errno '):
ret = other_vals[6:].split(';', 1)
kwargs['errno'] = ret[0].strip()
other_vals = ret[1].strip() if len(ret) > 1 else ''
if len(other_vals) > 0:
kwargs, _ = Parser.parse_args(other_vals, named=True, ret=True)
if (self.pid, self.tid) not in self.stack:
self.stack[(self.pid, self.tid)] = self.stack[(0, 0)]
del self.stack[(0, 0)]
(self.ret_addr, self.rel_ret_addr,
self.dli_file_name, self.dli_sym_name,
self.src_file_name, self.src_line_num,
func_name, args) = self.stack[(self.pid, self.tid)].pop()
try:
func = getattr(self, f'after_{func_name}')
if not callable(func):
func = None
except AttributeError:
func = None
try:
if func is None:
raise NotImplementedError()
if ret_value is None:
func(*args, **kwargs)
else:
func(*args, ret_value=ret_value, **kwargs)
except NotImplementedError:
if ret_value is None:
self.after_fallback(func_name, *args, **kwargs)
else:
self.after_fallback(func_name, *args, ret_value=ret_value, **kwargs)
#print(f'[{self.pid}][{self.tid}] -> {ret}')
def before_malloc(self, size: int) -> str:
raise NotImplementedError()
def after_malloc(self, size: int,
ret_value: Pointer, errno: str = None) -> None:
raise NotImplementedError()
def before_calloc(self, nmemb: int, size: int) -> str:
raise NotImplementedError()
def after_calloc(self, nmemb: int, size: int,
ret_value: Pointer, errno: str = None) -> None:
raise NotImplementedError()
def before_realloc(self, ptr: Pointer, size: int) -> str:
raise NotImplementedError()
def after_realloc(self, ptr: Pointer, size: int,
ret_value: Pointer, errno: str = None) -> None:
raise NotImplementedError()
def before_reallocarray(self, ptr: Pointer, nmemb: int, size: int) -> str:
raise NotImplementedError()
def after_reallocarray(self, ptr: Pointer, nmemb: int, size: int,
ret_value: Pointer, errno: str = None) -> None:
raise NotImplementedError()
def before_free(self, ptr: Pointer) -> str:
raise NotImplementedError()
def after_free(self, ptr: Pointer) -> None:
raise NotImplementedError()
def before_getopt(self, argc: int, argv: PointerTo[list[PointerTo[bytes]]], optstring: PointerTo[bytes]) -> str:
raise NotImplementedError()
def after_getopt(self, argc: int, argv: PointerTo[list[PointerTo[bytes]]], optstring: PointerTo[bytes],
ret_value: int, optind: int = None) -> None:
raise NotImplementedError()
def before_exit(self, status: int) -> str:
raise NotImplementedError()
def after_exit(self, status: int) -> None:
raise NotImplementedError()
def before_read(self, fildes: int, buf_ptr: Pointer, nbyte: int) -> str:
raise NotImplementedError()
def after_read(self, fildes: int, buf_ptr: Pointer, nbyte: int,
ret_value: int, errno: str = None, buf: PointerTo[bytes] = None) -> None:
raise NotImplementedError()
def before_pread(self, fildes: int, buf_ptr: Pointer, nbyte: int, offset: int) -> str:
raise NotImplementedError()
def after_pread(self, fildes: int, buf_ptr: Pointer, nbyte: int, offset: int,
ret_value: int, errno: str = None, buf: PointerTo[bytes] = None) -> None:
raise NotImplementedError()
def before_write(self, fildes: int, buf: PointerTo[bytes], nbyte: int) -> str:
raise NotImplementedError()
def after_write(self, fildes: int, buf: PointerTo[bytes], nbyte: int,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_pwrite(self, fildes: int, buf: PointerTo[bytes], nbyte: int, offste: int) -> str:
raise NotImplementedError()
def after_pwrite(self, fildes: int, buf: PointerTo[bytes], nbyte: int, offste: int,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_close(self, fildes: int) -> str:
raise NotImplementedError()
def after_close(self, fildes: int,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_sigaction(self, sig: Constant, act: PointerTo[StructSigAction], oact_ptr: Pointer) -> str:
raise NotImplementedError()
def after_sigaction(self, sig: Constant, act: PointerTo[StructSigAction], oact_ptr: Pointer,
ret_value: int, errno: str = None, oact: StructSigAction = None) -> None:
raise NotImplementedError()
def before_sem_init(self, sem: Pointer, pshared: int, value: int) -> str:
raise NotImplementedError()
def after_sem_init(self, sem: Pointer, pshared: int, value: int,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_sem_open(self, name: str, oflag: Flags, mode: Optional[int], value: Optional[int]) -> str:
raise NotImplementedError()
def after_sem_open(self, name: str, oflag: Flags, mode: Optional[int], value: Optional[int],
ret_value: Pointer, errno: str = None) -> None:
raise NotImplementedError()
def before_sem_post(self, sem: Pointer) -> str:
raise NotImplementedError()
def after_sem_post(self, sem: Pointer,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_sem_wait(self, sem: Pointer) -> str:
raise NotImplementedError()
def after_sem_wait(self, sem: Pointer,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_sem_trywait(self, sem: Pointer) -> str:
raise NotImplementedError()
def after_sem_trywait(self, sem: Pointer,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_sem_timedwait(self, sem: Pointer, abs_timeout: PointerTo[StructTimeSpec]) -> str:
raise NotImplementedError()
def after_sem_timedwait(self, sem: Pointer, abs_timeout: PointerTo[StructTimeSpec],
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_sem_getvalue(self, sem: Pointer, value_ptr: Pointer) -> str:
raise NotImplementedError()
def after_sem_getvalue(self, sem: Pointer, value_ptr: Pointer,
ret_value: int, errno: str = None, value: int = None) -> None:
raise NotImplementedError()
def before_sem_close(self, sem: Pointer) -> str:
raise NotImplementedError()
def after_sem_close(self, sem: Pointer,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_sem_unlink(self, name: PointerTo[bytes]) -> str:
raise NotImplementedError()
def after_sem_unlink(self, name: PointerTo[bytes],
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_sem_destroy(self, sem: Pointer) -> str:
raise NotImplementedError()
def after_sem_destroy(self, sem: Pointer,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_shm_open(self, name: PointerTo[bytes], oflag: Flags, mode: int) -> str:
raise NotImplementedError()
def after_shm_open(self, name: PointerTo[bytes], oflag: Flags, mode: int,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_shm_unlink(self, name: PointerTo[bytes]) -> str:
raise NotImplementedError()
def after_shm_unlink(self, name: PointerTo[bytes],
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_mmap(self, addr: Pointer, length: int, prot: Flags, flags: Flags, fildes: int, off: int) -> str:
raise NotImplementedError()
def after_mmap(self, addr: Pointer, length: int, prot: Flags, flags: Flags, fildes: int, off: int,
ret_value: Pointer, errno: str = None) -> None:
raise NotImplementedError()
def before_munmap(self, addr: Pointer, length: int) -> str:
raise NotImplementedError()
def after_munmap(self, addr: Pointer, length: int,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_ftruncate(self, fildes: int, length: int) -> str:
raise NotImplementedError()
def after_ftruncate(self, fildes: int, length: int,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_fork(self) -> str:
raise NotImplementedError()
def after_fork(self,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_wait(self, stat_loc: Pointer) -> str:
raise NotImplementedError()
def after_wait(self, stat_loc: Pointer,
ret_value: int, errno: str = None, stat: int = None) -> None:
raise NotImplementedError()
def before_waitpid(self, pid: int, stat_loc: Pointer, options: Flags) -> str:
raise NotImplementedError()
def after_waitpid(self, pid: int, stat_loc: Pointer, options: Flags,
ret_value: int, errno: str = None, stat: int = None) -> None:
raise NotImplementedError()
def before_execl(self, pathname: PointerTo[bytes], *args: list[PointerTo[bytes]]) -> str:
raise NotImplementedError()
def after_execl(self, pathname: PointerTo[bytes], *args: list[PointerTo[bytes]],
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_execlp(self, file: PointerTo[bytes], *args: list[PointerTo[bytes]]) -> str:
raise NotImplementedError()
def after_execlp(self, file: PointerTo[bytes], *args: list[PointerTo[bytes]],
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_execle(self, pathname: PointerTo[bytes], *args: list[PointerTo[bytes]], envp: PointerTo[list[PointerTo[bytes]]]) -> str:
raise NotImplementedError()
def after_execle(self, pathname: PointerTo[bytes], *args: list[PointerTo[bytes]], envp: PointerTo[list[PointerTo[bytes]]],
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_execv(self, pathname: PointerTo[bytes], argv: PointerTo[list[PointerTo[bytes]]]) -> str:
raise NotImplementedError()
def after_execv(self, pathname: PointerTo[bytes], argv: PointerTo[list[PointerTo[bytes]]],
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_execvp(self, file: PointerTo[bytes], argv: PointerTo[list[PointerTo[bytes]]]) -> str:
raise NotImplementedError()
def after_execvp(self, file: PointerTo[bytes], argv: PointerTo[list[PointerTo[bytes]]],
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_execvpe(self, file: PointerTo[bytes], argv: PointerTo[list[PointerTo[bytes]]], envp: PointerTo[list[PointerTo[bytes]]]) -> str:
raise NotImplementedError()
def after_execvpe(self, file: PointerTo[bytes], argv: PointerTo[list[PointerTo[bytes]]], envp: PointerTo[list[PointerTo[bytes]]],
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_execve(self, pathname: PointerTo[bytes], argv: PointerTo[list[PointerTo[bytes]]], envp: PointerTo[list[PointerTo[bytes]]]) -> str:
raise NotImplementedError()
def after_execve(self, pathname: PointerTo[bytes], argv: PointerTo[list[PointerTo[bytes]]], envp: PointerTo[list[PointerTo[bytes]]],
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_fexecve(self, fd: int, argv: PointerTo[list[PointerTo[bytes]]], envp: PointerTo[list[PointerTo[bytes]]]) -> str:
raise NotImplementedError()
def after_fexecve(self, fd: int, argv: PointerTo[list[PointerTo[bytes]]], envp: PointerTo[list[PointerTo[bytes]]],
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_pipe(self, fildes_ptr: Pointer) -> str:
raise NotImplementedError()
def after_pipe(self, fildes_ptr: Pointer,
ret_value: int, errno: str = None, fildes: list[int] = None) -> None:
raise NotImplementedError()
def before_dup(self, oldfd: int) -> str:
raise NotImplementedError()
def after_dup(self, oldfd: int,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_dup2(self, oldfd: int, newfd: int) -> str:
raise NotImplementedError()
def after_dup2(self, oldfd: int, newfd: int,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_dup3(self, oldfd: int, newfd: int, flags: Flags) -> str:
raise NotImplementedError()
def after_dup3(self, oldfd: int, newfd: int, flags: Flags,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_socket(self, domain: Constant, socktype: Constant, protocol: int) -> str:
raise NotImplementedError()
def after_socket(self, domain: Constant, socktype: Constant, protocol: int,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_bind(self, sockfd: int, address: PointerTo[StructSockAddr], address_len: int) -> str:
raise NotImplementedError()
def after_bind(self, sockfd: int, address: PointerTo[StructSockAddr], address_len: int,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_listen(self, sockfd: int, backlog: int) -> str:
raise NotImplementedError()
def after_listen(self, sockfd: int, backlog: int,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_accept(self, sockfd: int, address_ptr: Pointer, address_len_ptr: Pointer) -> str:
raise NotImplementedError()
def after_accept(self, sockfd: int, address_ptr: Pointer, address_len_ptr: Pointer,
ret_value: int, errno: str = None, address: PointerTo[StructSockAddr] = None, address_len: PointerTo[StructSockAddr] = None) -> None:
raise NotImplementedError()
def before_connect(self, sockfd: int, address: PointerTo[StructSockAddr], address_len: int) -> str:
raise NotImplementedError()
def after_connect(self, sockfd: int, address: PointerTo[StructSockAddr], address_len: int,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_getaddrinfo(self, node: PointerTo[bytes], service: PointerTo[bytes], hints: PointerTo[list[StructAddrInfo]], res_ptr: Pointer) -> str:
raise NotImplementedError()
def after_getaddrinfo(self, node: PointerTo[bytes], service: PointerTo[bytes], hints: PointerTo[list[StructAddrInfo]], res_ptr: Pointer,
ret_value: Constant, errno: str = None, res: PointerTo[list[StructAddrInfo]] = None) -> None:
raise NotImplementedError()
def before_freeaddrinfo(self, res: Pointer) -> str:
raise NotImplementedError()
def after_freeaddrinfo(self, res: Pointer) -> None:
raise NotImplementedError()
def before_send(self, sockfd: int, buf: PointerTo[bytes], length: int, flags: Flags) -> str:
raise NotImplementedError()
def after_send(self, sockfd: int, buf: PointerTo[bytes], length: int, flags: Flags,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_sendto(self, sockfd: int, buf: PointerTo[bytes], length: int, flags: Flags, dest_addr: PointerTo[StructSockAddr], addrlen: int) -> str:
raise NotImplementedError()
def after_sendto(self, sockfd: int, buf: PointerTo[bytes], length: int, flags: Flags, dest_addr: PointerTo[StructSockAddr], addrlen: int,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_sendmsg(self, sockfd: int, message: StructMsgHdr, flags: Flags) -> str:
raise NotImplementedError()
def after_sendmsg(self, sockfd: int, message: StructMsgHdr, flags: Flags,
ret_value: int, errno: str = None) -> None:
raise NotImplementedError()
def before_recv(self, sockfd: int, buf_ptr: Pointer, size: int, flags: Flags) -> str:
raise NotImplementedError()
def after_recv(self, sockfd: int, buf_ptr: Pointer, size: int, flags: Flags,
ret_value: int, errno: str = None, buf: PointerTo[bytes] = None) -> None:
raise NotImplementedError()
def before_recvfrom(self, sockfd: int, buf_ptr: Pointer, size: int, flags: Flags, src_addr_ptr: Pointer, addrlen_ptr: Pointer) -> str:
raise NotImplementedError()
def after_recvfrom(self, sockfd: int, buf_ptr: Pointer, size: int, flags: Flags, src_addr_ptr: Pointer, addrlen_ptr: Pointer,
ret_value: int, errno: str = None, buf: PointerTo[bytes] = None, src_addr: PointerTo[StructSockAddr] = None, addrlen: int = None) -> None:
raise NotImplementedError()
def before_recvmsg(self, sockfd: int, message_ptr: Pointer, flags: Flags) -> str:
raise NotImplementedError()
def after_recvmsg(self, sockfd: int, message_ptr: Pointer, flags: Flags,
ret_value: int, errno: str = None, message: PointerTo[StructMsgHdr] = None) -> None:
raise NotImplementedError()
def before_getline(self, line_ptr: PointerTo[Pointer], n_ptr: PointerTo[int], stream: Pointer) -> str:
raise NotImplementedError()
def after_getline(self, line_ptr: PointerTo[Pointer], n_ptr: PointerTo[int], stream: Pointer,
ret_value: int, errno: str = None, n: int = None, line: PointerTo[bytes] = None) -> None:
raise NotImplementedError()
def before_getdelim(self, line_ptr: PointerTo[Pointer], n_ptr: PointerTo[int], delim: int, stream: Pointer) -> str:
raise NotImplementedError()
def after_getdelim(self, line_ptr: PointerTo[Pointer], n_ptr: PointerTo[int], delim: int, stream: Pointer,
ret_value: int, errno: str = None, n: int = None, line: PointerTo[bytes] = None) -> None:
raise NotImplementedError()
class Handler(StreamRequestHandler, Parser):
def handle(self):
first = self.rfile.readline()
meta = {a[0]: a[1] for a in [tuple(p.decode('utf-8').split(':', 1)) for p in first.split(b' ', 3)[3].strip().split(b';')]}
self.pid = int(meta['PID']) if 'PID' in meta else None
self.path = meta['PATH'] if 'PATH' in meta else None
print(f'Process with PID {self.pid} connected ({self.path})')
self.stack = {}
self.parse()
def intercept(socket: str, handler: type[Handler]) -> None:
try:
with ThreadedUnixStreamServer(socket, handler) as server:
server.serve_forever()
except KeyboardInterrupt:
print('\nBye')
server.shutdown()
finally:
try:
os.unlink(socket)
except FileNotFoundError:
pass