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checker6.py
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#!/usr/bin/python3
'''SOSP23-Paper21: '''
'''Checker6: F+_start --> S_G --> F+_end ^ F-_start --> F-_end'''
import os
import configparser
import json
from utils import *
g_record_file = 'checker6.log'
put_apis = {'usb_get_dev':'usb_put_dev',
'sock_hold':'sock_put',
'spi_alloc_master':'spi_master_put'
}
def checker6(start_ast, end_ast, get_apis, file_name, g_logger):
for api in get_apis:
api = api.strip()
get_lines = []
for sn in start_ast.node_set.keys():
start_cur_node = start_ast.node_set[sn]
start_src = start_cur_node.dot_src
#if cur_node.type==AST_NODE_TYPE_OP_ASSIGN:
if start_src.find(api)!=-1 and (not (start_cur_node.line in get_lines)):
#print('Find REMOTE_GET: %s'%(start_src))
get_lines.append(start_cur_node.line)
remote_has_put = 0
for en in end_ast.node_set.keys():
end_cur_node = end_ast.node_set[en]
end_src = end_cur_node.dot_src
if end_src.find(put_apis[api])!=-1:
#print('Find REMOTE_PUT: %s'%(end_src))
remote_has_put = 1
break
if remote_has_put == 0:
print('%s %s %s'%('+'*10, file_name, '+'*10))
g_logger.write(file_name+'\n')
print('\tMeet Remote-Unpaired API: (%s:%s)%s - %s'%(start_ast.get_name(), end_ast.get_name(), api, start_src))
g_logger.write('\tMeet Remote-Unpaired API: (%s:%s)%s - %s\n'%(start_ast.get_name(), end_ast.get_name(), api, start_src))
g_logger.flush()
break
def get_start_end_name(func_str, pairs, file_name, g_logger, start_or_end):
#print('SE: %d'%(start_or_end))
ast_f = build_ast_from_str(func_str)
if ast_f=='':
return ('', -1, '', '', '', '')
name = ast_f.get_name()
start_name = ''
end_name = ''
start_word = ''
end_word = ''
if start_or_end==0:
#print("START.....")
start_name = ''
start_word = ''
for k in pairs.keys():
if name.find(k)!=-1:
#print('START: %s'%(name))
start_name = name
start_word = k
end_word = pairs[k]
break
if start_name!='':
general_name = start_name.replace(start_word, '')
index = 0
for k in start_name.split('_'):
if k==start_word:
#print(index)
break
index+=1
#print(general_name)
return (general_name, index, start_word, end_word, ast_f, name)
else:
return ('', -1, '', '', '', '')
if start_or_end==1:
#print("END.....")
for k in pairs.keys():
#print('Find End: %s'%(pairs[k]))
if name.find(pairs[k])!=-1:
#print('END: %s'%(name))
end_name = name
start_word = k
end_word = pairs[k]
break
if end_name!='':
general_name = end_name.replace(end_word, '')
index = 0
for k in end_name.split('_'):
if k==end_word:
#print(index)
break
index+=1
#print(general_name)
return (general_name, index, start_word, end_word, ast_f, name)
else:
return ('', -1, '', '', '', '')
return ('', -1, '', '', '', '')
def run_checker():
g_logger = open(g_record_file, 'w')
config = configparser.ConfigParser()
config.read('checkers.ini', encoding='utf-8')
#secs = config.sections()
#print(secs)
name_pairs = ''
get_apis = ''
ast_kernel_functions_file = config.get('global', 'ast_kernel_functions')
if config.has_section('indirect_api'):
#print('yes')
name_pairs = config.get('indirect_api', 'name_pairs')[1:-1].split(',')
get_apis = config.get('indirect_api', 'apis')[1:-1].split(',')
else:
print('no section *indirect_api* for checker6')
return -1
pairs = {}
for np in name_pairs:
pairs[np.split(':')[0].strip()]=np.split(':')[1].strip()
i = 0
g_maps = {}
g_file = ''
with open(ast_kernel_functions_file) as f:
while True:
l = f.readline()
if l=='': break
l = l.strip()
if l=='': continue
dot_file = l.split(' ')[0].split(':')[1]
#dot_file = '/data1/linux-ast/0/+data1+struck-linux+arch+powerpc+platforms+powermac+pfunc_core.c+outdir/54-ast.dot'
#print('Process --- %s'%dot_file)
with open(dot_file) as df:
file_str = df.read()
#checker5(df.read(), apis, l, g_logger)
(start_g_name, start_index, start_start_name, start_end_name, start_ast_f, start_api_name) = get_start_end_name(file_str, pairs, l, g_logger, 0)
(end_g_name, end_index, end_start_name, end_end_name, end_ast_f, end_api_name) = get_start_end_name(file_str, pairs, l, g_logger, 1)
if start_g_name!='':
#print('Start: %s'%(start_g_name))
if start_g_name in g_maps.keys():
g_maps[start_g_name][0] = (start_g_name, start_index, start_start_name, start_end_name, start_ast_f, start_api_name, dot_file)
else:
g_maps[start_g_name] =[(start_g_name, start_index, start_start_name, start_end_name, start_ast_f, start_api_name,dot_file), \
('', -1, '', '', '', '', '')]
if end_g_name!='':
#print('End: %s'%(end_g_name))
if end_g_name in g_maps.keys():
g_maps[end_g_name][1] = (end_g_name, end_index, end_start_name, end_end_name, end_ast_f, end_api_name,dot_file)
else:
g_maps[end_g_name] = [('', -1, '', '', '', '', ''), (end_g_name, end_index, end_start_name, end_end_name, end_ast_f, end_api_name, dot_file)]
#break
i+=1
if i%10000==0:
print(i)
#if i>50000: break
for k in g_maps.keys():
#print(k)
if g_maps[k][0][0]!='' and g_maps[k][1][0]!='':
#print('%s - %s'%(g_maps[k][0][5], g_maps[k][1][5]))
g_logger.write('%s - %s\n'%(g_maps[k][0][5], g_maps[k][1][5]))
checker6(g_maps[k][0][4], g_maps[k][1][4], get_apis, g_maps[k][0][6], g_logger)
g_logger.close()
if __name__ == '__main__':
run_checker()