mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-11-26 23:55:43 +01:00
Move InputsForTest to macro_collector.py
This is useful to generate PSA tests for more than constant names. Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine
parent
e30ad46f91
commit
3cf3a8ebdf
@ -18,7 +18,55 @@
|
||||
|
||||
import itertools
|
||||
import re
|
||||
from typing import Dict, Iterable, Iterator, List, Set
|
||||
from typing import Dict, Iterable, Iterator, List, Optional, Pattern, Set, Tuple, Union
|
||||
|
||||
|
||||
class ReadFileLineException(Exception):
|
||||
def __init__(self, filename: str, line_number: Union[int, str]) -> None:
|
||||
message = 'in {} at {}'.format(filename, line_number)
|
||||
super(ReadFileLineException, self).__init__(message)
|
||||
self.filename = filename
|
||||
self.line_number = line_number
|
||||
|
||||
|
||||
class read_file_lines:
|
||||
# Dear Pylint, conventionally, a context manager class name is lowercase.
|
||||
# pylint: disable=invalid-name,too-few-public-methods
|
||||
"""Context manager to read a text file line by line.
|
||||
|
||||
```
|
||||
with read_file_lines(filename) as lines:
|
||||
for line in lines:
|
||||
process(line)
|
||||
```
|
||||
is equivalent to
|
||||
```
|
||||
with open(filename, 'r') as input_file:
|
||||
for line in input_file:
|
||||
process(line)
|
||||
```
|
||||
except that if process(line) raises an exception, then the read_file_lines
|
||||
snippet annotates the exception with the file name and line number.
|
||||
"""
|
||||
def __init__(self, filename: str, binary: bool = False) -> None:
|
||||
self.filename = filename
|
||||
self.line_number = 'entry' #type: Union[int, str]
|
||||
self.generator = None #type: Optional[Iterable[Tuple[int, str]]]
|
||||
self.binary = binary
|
||||
def __enter__(self) -> 'read_file_lines':
|
||||
self.generator = enumerate(open(self.filename,
|
||||
'rb' if self.binary else 'r'))
|
||||
return self
|
||||
def __iter__(self) -> Iterator[str]:
|
||||
assert self.generator is not None
|
||||
for line_number, content in self.generator:
|
||||
self.line_number = line_number
|
||||
yield content
|
||||
self.line_number = 'exit'
|
||||
def __exit__(self, exc_type, exc_value, exc_traceback) -> None:
|
||||
if exc_type is not None:
|
||||
raise ReadFileLineException(self.filename, self.line_number) \
|
||||
from exc_value
|
||||
|
||||
|
||||
class PSAMacroEnumerator:
|
||||
@ -251,3 +299,168 @@ class PSAMacroCollector(PSAMacroEnumerator):
|
||||
m = re.search(self._continued_line_re, line)
|
||||
line = re.sub(self._nonascii_re, rb'', line).decode('ascii')
|
||||
self.read_line(line)
|
||||
|
||||
|
||||
class InputsForTest(PSAMacroEnumerator):
|
||||
# pylint: disable=too-many-instance-attributes
|
||||
"""Accumulate information about macros to test.
|
||||
enumerate
|
||||
This includes macro names as well as information about their arguments
|
||||
when applicable.
|
||||
"""
|
||||
|
||||
def __init__(self) -> None:
|
||||
super().__init__()
|
||||
self.all_declared = set() #type: Set[str]
|
||||
# Sets of names per type
|
||||
self.statuses.add('PSA_SUCCESS')
|
||||
self.algorithms.add('0xffffffff')
|
||||
self.ecc_curves.add('0xff')
|
||||
self.dh_groups.add('0xff')
|
||||
self.key_types.add('0xffff')
|
||||
self.key_usage_flags.add('0x80000000')
|
||||
|
||||
# Hard-coded values for unknown algorithms
|
||||
#
|
||||
# These have to have values that are correct for their respective
|
||||
# PSA_ALG_IS_xxx macros, but are also not currently assigned and are
|
||||
# not likely to be assigned in the near future.
|
||||
self.hash_algorithms.add('0x020000fe') # 0x020000ff is PSA_ALG_ANY_HASH
|
||||
self.mac_algorithms.add('0x03007fff')
|
||||
self.ka_algorithms.add('0x09fc0000')
|
||||
self.kdf_algorithms.add('0x080000ff')
|
||||
# For AEAD algorithms, the only variability is over the tag length,
|
||||
# and this only applies to known algorithms, so don't test an
|
||||
# unknown algorithm.
|
||||
|
||||
# Identifier prefixes
|
||||
self.table_by_prefix = {
|
||||
'ERROR': self.statuses,
|
||||
'ALG': self.algorithms,
|
||||
'ECC_CURVE': self.ecc_curves,
|
||||
'DH_GROUP': self.dh_groups,
|
||||
'KEY_TYPE': self.key_types,
|
||||
'KEY_USAGE': self.key_usage_flags,
|
||||
} #type: Dict[str, Set[str]]
|
||||
# Test functions
|
||||
self.table_by_test_function = {
|
||||
# Any function ending in _algorithm also gets added to
|
||||
# self.algorithms.
|
||||
'key_type': [self.key_types],
|
||||
'block_cipher_key_type': [self.key_types],
|
||||
'stream_cipher_key_type': [self.key_types],
|
||||
'ecc_key_family': [self.ecc_curves],
|
||||
'ecc_key_types': [self.ecc_curves],
|
||||
'dh_key_family': [self.dh_groups],
|
||||
'dh_key_types': [self.dh_groups],
|
||||
'hash_algorithm': [self.hash_algorithms],
|
||||
'mac_algorithm': [self.mac_algorithms],
|
||||
'cipher_algorithm': [],
|
||||
'hmac_algorithm': [self.mac_algorithms],
|
||||
'aead_algorithm': [self.aead_algorithms],
|
||||
'key_derivation_algorithm': [self.kdf_algorithms],
|
||||
'key_agreement_algorithm': [self.ka_algorithms],
|
||||
'asymmetric_signature_algorithm': [],
|
||||
'asymmetric_signature_wildcard': [self.algorithms],
|
||||
'asymmetric_encryption_algorithm': [],
|
||||
'other_algorithm': [],
|
||||
} #type: Dict[str, List[Set[str]]]
|
||||
self.arguments_for['mac_length'] += ['1', '63']
|
||||
self.arguments_for['min_mac_length'] += ['1', '63']
|
||||
self.arguments_for['tag_length'] += ['1', '63']
|
||||
self.arguments_for['min_tag_length'] += ['1', '63']
|
||||
|
||||
def get_names(self, type_word: str) -> Set[str]:
|
||||
"""Return the set of known names of values of the given type."""
|
||||
return {
|
||||
'status': self.statuses,
|
||||
'algorithm': self.algorithms,
|
||||
'ecc_curve': self.ecc_curves,
|
||||
'dh_group': self.dh_groups,
|
||||
'key_type': self.key_types,
|
||||
'key_usage': self.key_usage_flags,
|
||||
}[type_word]
|
||||
|
||||
# Regex for interesting header lines.
|
||||
# Groups: 1=macro name, 2=type, 3=argument list (optional).
|
||||
_header_line_re = \
|
||||
re.compile(r'#define +' +
|
||||
r'(PSA_((?:(?:DH|ECC|KEY)_)?[A-Z]+)_\w+)' +
|
||||
r'(?:\(([^\n()]*)\))?')
|
||||
# Regex of macro names to exclude.
|
||||
_excluded_name_re = re.compile(r'_(?:GET|IS|OF)_|_(?:BASE|FLAG|MASK)\Z')
|
||||
# Additional excluded macros.
|
||||
_excluded_names = set([
|
||||
# Macros that provide an alternative way to build the same
|
||||
# algorithm as another macro.
|
||||
'PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG',
|
||||
'PSA_ALG_FULL_LENGTH_MAC',
|
||||
# Auxiliary macro whose name doesn't fit the usual patterns for
|
||||
# auxiliary macros.
|
||||
'PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG_CASE',
|
||||
])
|
||||
def parse_header_line(self, line: str) -> None:
|
||||
"""Parse a C header line, looking for "#define PSA_xxx"."""
|
||||
m = re.match(self._header_line_re, line)
|
||||
if not m:
|
||||
return
|
||||
name = m.group(1)
|
||||
self.all_declared.add(name)
|
||||
if re.search(self._excluded_name_re, name) or \
|
||||
name in self._excluded_names:
|
||||
return
|
||||
dest = self.table_by_prefix.get(m.group(2))
|
||||
if dest is None:
|
||||
return
|
||||
dest.add(name)
|
||||
if m.group(3):
|
||||
self.argspecs[name] = self._argument_split(m.group(3))
|
||||
|
||||
_nonascii_re = re.compile(rb'[^\x00-\x7f]+') #type: Pattern
|
||||
def parse_header(self, filename: str) -> None:
|
||||
"""Parse a C header file, looking for "#define PSA_xxx"."""
|
||||
with read_file_lines(filename, binary=True) as lines:
|
||||
for line in lines:
|
||||
line = re.sub(self._nonascii_re, rb'', line).decode('ascii')
|
||||
self.parse_header_line(line)
|
||||
|
||||
_macro_identifier_re = re.compile(r'[A-Z]\w+')
|
||||
def generate_undeclared_names(self, expr: str) -> Iterable[str]:
|
||||
for name in re.findall(self._macro_identifier_re, expr):
|
||||
if name not in self.all_declared:
|
||||
yield name
|
||||
|
||||
def accept_test_case_line(self, function: str, argument: str) -> bool:
|
||||
#pylint: disable=unused-argument
|
||||
undeclared = list(self.generate_undeclared_names(argument))
|
||||
if undeclared:
|
||||
raise Exception('Undeclared names in test case', undeclared)
|
||||
return True
|
||||
|
||||
def add_test_case_line(self, function: str, argument: str) -> None:
|
||||
"""Parse a test case data line, looking for algorithm metadata tests."""
|
||||
sets = []
|
||||
if function.endswith('_algorithm'):
|
||||
sets.append(self.algorithms)
|
||||
if function == 'key_agreement_algorithm' and \
|
||||
argument.startswith('PSA_ALG_KEY_AGREEMENT('):
|
||||
# We only want *raw* key agreement algorithms as such, so
|
||||
# exclude ones that are already chained with a KDF.
|
||||
# Keep the expression as one to test as an algorithm.
|
||||
function = 'other_algorithm'
|
||||
sets += self.table_by_test_function[function]
|
||||
if self.accept_test_case_line(function, argument):
|
||||
for s in sets:
|
||||
s.add(argument)
|
||||
|
||||
# Regex matching a *.data line containing a test function call and
|
||||
# its arguments. The actual definition is partly positional, but this
|
||||
# regex is good enough in practice.
|
||||
_test_case_line_re = re.compile(r'(?!depends_on:)(\w+):([^\n :][^:\n]*)')
|
||||
def parse_test_cases(self, filename: str) -> None:
|
||||
"""Parse a test case file (*.data), looking for algorithm metadata tests."""
|
||||
with read_file_lines(filename) as lines:
|
||||
for line in lines:
|
||||
m = re.match(self._test_case_line_re, line)
|
||||
if m:
|
||||
self.add_test_case_line(m.group(1), m.group(2))
|
||||
|
||||
@ -28,223 +28,13 @@ import os
|
||||
import re
|
||||
import subprocess
|
||||
import sys
|
||||
from typing import Dict, Iterable, Iterator, List, Optional, Pattern, Set, Tuple, Union
|
||||
from typing import Iterable, List, Optional, Tuple
|
||||
|
||||
import scripts_path # pylint: disable=unused-import
|
||||
from mbedtls_dev import c_build_helper
|
||||
from mbedtls_dev.macro_collector import PSAMacroEnumerator
|
||||
from mbedtls_dev.macro_collector import InputsForTest, PSAMacroEnumerator
|
||||
from mbedtls_dev import typing_util
|
||||
|
||||
class ReadFileLineException(Exception):
|
||||
def __init__(self, filename: str, line_number: Union[int, str]) -> None:
|
||||
message = 'in {} at {}'.format(filename, line_number)
|
||||
super(ReadFileLineException, self).__init__(message)
|
||||
self.filename = filename
|
||||
self.line_number = line_number
|
||||
|
||||
class read_file_lines:
|
||||
# Dear Pylint, conventionally, a context manager class name is lowercase.
|
||||
# pylint: disable=invalid-name,too-few-public-methods
|
||||
"""Context manager to read a text file line by line.
|
||||
|
||||
```
|
||||
with read_file_lines(filename) as lines:
|
||||
for line in lines:
|
||||
process(line)
|
||||
```
|
||||
is equivalent to
|
||||
```
|
||||
with open(filename, 'r') as input_file:
|
||||
for line in input_file:
|
||||
process(line)
|
||||
```
|
||||
except that if process(line) raises an exception, then the read_file_lines
|
||||
snippet annotates the exception with the file name and line number.
|
||||
"""
|
||||
def __init__(self, filename: str, binary: bool = False) -> None:
|
||||
self.filename = filename
|
||||
self.line_number = 'entry' #type: Union[int, str]
|
||||
self.generator = None #type: Optional[Iterable[Tuple[int, str]]]
|
||||
self.binary = binary
|
||||
def __enter__(self) -> 'read_file_lines':
|
||||
self.generator = enumerate(open(self.filename,
|
||||
'rb' if self.binary else 'r'))
|
||||
return self
|
||||
def __iter__(self) -> Iterator[str]:
|
||||
assert self.generator is not None
|
||||
for line_number, content in self.generator:
|
||||
self.line_number = line_number
|
||||
yield content
|
||||
self.line_number = 'exit'
|
||||
def __exit__(self, exc_type, exc_value, exc_traceback) -> None:
|
||||
if exc_type is not None:
|
||||
raise ReadFileLineException(self.filename, self.line_number) \
|
||||
from exc_value
|
||||
|
||||
class InputsForTest(PSAMacroEnumerator):
|
||||
# pylint: disable=too-many-instance-attributes
|
||||
"""Accumulate information about macros to test.
|
||||
enumerate
|
||||
This includes macro names as well as information about their arguments
|
||||
when applicable.
|
||||
"""
|
||||
|
||||
def __init__(self) -> None:
|
||||
super().__init__()
|
||||
self.all_declared = set() #type: Set[str]
|
||||
# Sets of names per type
|
||||
self.statuses.add('PSA_SUCCESS')
|
||||
self.algorithms.add('0xffffffff')
|
||||
self.ecc_curves.add('0xff')
|
||||
self.dh_groups.add('0xff')
|
||||
self.key_types.add('0xffff')
|
||||
self.key_usage_flags.add('0x80000000')
|
||||
|
||||
# Hard-coded values for unknown algorithms
|
||||
#
|
||||
# These have to have values that are correct for their respective
|
||||
# PSA_ALG_IS_xxx macros, but are also not currently assigned and are
|
||||
# not likely to be assigned in the near future.
|
||||
self.hash_algorithms.add('0x020000fe') # 0x020000ff is PSA_ALG_ANY_HASH
|
||||
self.mac_algorithms.add('0x03007fff')
|
||||
self.ka_algorithms.add('0x09fc0000')
|
||||
self.kdf_algorithms.add('0x080000ff')
|
||||
# For AEAD algorithms, the only variability is over the tag length,
|
||||
# and this only applies to known algorithms, so don't test an
|
||||
# unknown algorithm.
|
||||
|
||||
# Identifier prefixes
|
||||
self.table_by_prefix = {
|
||||
'ERROR': self.statuses,
|
||||
'ALG': self.algorithms,
|
||||
'ECC_CURVE': self.ecc_curves,
|
||||
'DH_GROUP': self.dh_groups,
|
||||
'KEY_TYPE': self.key_types,
|
||||
'KEY_USAGE': self.key_usage_flags,
|
||||
} #type: Dict[str, Set[str]]
|
||||
# Test functions
|
||||
self.table_by_test_function = {
|
||||
# Any function ending in _algorithm also gets added to
|
||||
# self.algorithms.
|
||||
'key_type': [self.key_types],
|
||||
'block_cipher_key_type': [self.key_types],
|
||||
'stream_cipher_key_type': [self.key_types],
|
||||
'ecc_key_family': [self.ecc_curves],
|
||||
'ecc_key_types': [self.ecc_curves],
|
||||
'dh_key_family': [self.dh_groups],
|
||||
'dh_key_types': [self.dh_groups],
|
||||
'hash_algorithm': [self.hash_algorithms],
|
||||
'mac_algorithm': [self.mac_algorithms],
|
||||
'cipher_algorithm': [],
|
||||
'hmac_algorithm': [self.mac_algorithms],
|
||||
'aead_algorithm': [self.aead_algorithms],
|
||||
'key_derivation_algorithm': [self.kdf_algorithms],
|
||||
'key_agreement_algorithm': [self.ka_algorithms],
|
||||
'asymmetric_signature_algorithm': [],
|
||||
'asymmetric_signature_wildcard': [self.algorithms],
|
||||
'asymmetric_encryption_algorithm': [],
|
||||
'other_algorithm': [],
|
||||
} #type: Dict[str, List[Set[str]]]
|
||||
self.arguments_for['mac_length'] += ['1', '63']
|
||||
self.arguments_for['min_mac_length'] += ['1', '63']
|
||||
self.arguments_for['tag_length'] += ['1', '63']
|
||||
self.arguments_for['min_tag_length'] += ['1', '63']
|
||||
|
||||
def get_names(self, type_word: str) -> Set[str]:
|
||||
"""Return the set of known names of values of the given type."""
|
||||
return {
|
||||
'status': self.statuses,
|
||||
'algorithm': self.algorithms,
|
||||
'ecc_curve': self.ecc_curves,
|
||||
'dh_group': self.dh_groups,
|
||||
'key_type': self.key_types,
|
||||
'key_usage': self.key_usage_flags,
|
||||
}[type_word]
|
||||
|
||||
# Regex for interesting header lines.
|
||||
# Groups: 1=macro name, 2=type, 3=argument list (optional).
|
||||
_header_line_re = \
|
||||
re.compile(r'#define +' +
|
||||
r'(PSA_((?:(?:DH|ECC|KEY)_)?[A-Z]+)_\w+)' +
|
||||
r'(?:\(([^\n()]*)\))?')
|
||||
# Regex of macro names to exclude.
|
||||
_excluded_name_re = re.compile(r'_(?:GET|IS|OF)_|_(?:BASE|FLAG|MASK)\Z')
|
||||
# Additional excluded macros.
|
||||
_excluded_names = set([
|
||||
# Macros that provide an alternative way to build the same
|
||||
# algorithm as another macro.
|
||||
'PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG',
|
||||
'PSA_ALG_FULL_LENGTH_MAC',
|
||||
# Auxiliary macro whose name doesn't fit the usual patterns for
|
||||
# auxiliary macros.
|
||||
'PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG_CASE',
|
||||
])
|
||||
def parse_header_line(self, line: str) -> None:
|
||||
"""Parse a C header line, looking for "#define PSA_xxx"."""
|
||||
m = re.match(self._header_line_re, line)
|
||||
if not m:
|
||||
return
|
||||
name = m.group(1)
|
||||
self.all_declared.add(name)
|
||||
if re.search(self._excluded_name_re, name) or \
|
||||
name in self._excluded_names:
|
||||
return
|
||||
dest = self.table_by_prefix.get(m.group(2))
|
||||
if dest is None:
|
||||
return
|
||||
dest.add(name)
|
||||
if m.group(3):
|
||||
self.argspecs[name] = self._argument_split(m.group(3))
|
||||
|
||||
_nonascii_re = re.compile(rb'[^\x00-\x7f]+') #type: Pattern
|
||||
def parse_header(self, filename: str) -> None:
|
||||
"""Parse a C header file, looking for "#define PSA_xxx"."""
|
||||
with read_file_lines(filename, binary=True) as lines:
|
||||
for line in lines:
|
||||
line = re.sub(self._nonascii_re, rb'', line).decode('ascii')
|
||||
self.parse_header_line(line)
|
||||
|
||||
_macro_identifier_re = re.compile(r'[A-Z]\w+')
|
||||
def generate_undeclared_names(self, expr: str) -> Iterable[str]:
|
||||
for name in re.findall(self._macro_identifier_re, expr):
|
||||
if name not in self.all_declared:
|
||||
yield name
|
||||
|
||||
def accept_test_case_line(self, function: str, argument: str) -> bool:
|
||||
#pylint: disable=unused-argument
|
||||
undeclared = list(self.generate_undeclared_names(argument))
|
||||
if undeclared:
|
||||
raise Exception('Undeclared names in test case', undeclared)
|
||||
return True
|
||||
|
||||
def add_test_case_line(self, function: str, argument: str) -> None:
|
||||
"""Parse a test case data line, looking for algorithm metadata tests."""
|
||||
sets = []
|
||||
if function.endswith('_algorithm'):
|
||||
sets.append(self.algorithms)
|
||||
if function == 'key_agreement_algorithm' and \
|
||||
argument.startswith('PSA_ALG_KEY_AGREEMENT('):
|
||||
# We only want *raw* key agreement algorithms as such, so
|
||||
# exclude ones that are already chained with a KDF.
|
||||
# Keep the expression as one to test as an algorithm.
|
||||
function = 'other_algorithm'
|
||||
sets += self.table_by_test_function[function]
|
||||
if self.accept_test_case_line(function, argument):
|
||||
for s in sets:
|
||||
s.add(argument)
|
||||
|
||||
# Regex matching a *.data line containing a test function call and
|
||||
# its arguments. The actual definition is partly positional, but this
|
||||
# regex is good enough in practice.
|
||||
_test_case_line_re = re.compile(r'(?!depends_on:)(\w+):([^\n :][^:\n]*)')
|
||||
def parse_test_cases(self, filename: str) -> None:
|
||||
"""Parse a test case file (*.data), looking for algorithm metadata tests."""
|
||||
with read_file_lines(filename) as lines:
|
||||
for line in lines:
|
||||
m = re.match(self._test_case_line_re, line)
|
||||
if m:
|
||||
self.add_test_case_line(m.group(1), m.group(2))
|
||||
|
||||
def gather_inputs(headers: Iterable[str],
|
||||
test_suites: Iterable[str],
|
||||
inputs_class=InputsForTest) -> PSAMacroEnumerator:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user