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add support for writev sys call

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This commit is contained in:
virusdefender 2017-05-20 13:37:06 +08:00 committed by LiYang
parent 817275e13d
commit 3f60f3bb00
3 changed files with 29 additions and 2 deletions
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3
src/rules/c_cpp.c
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@ -32,6 +32,9 @@ int c_cpp_seccomp_rules(struct config *_config) {
if (seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(write), 1, SCMP_A0(SCMP_CMP_LE, 2)) != 0) {
return LOAD_SECCOMP_FAILED;
}
if (seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(writev), 1, SCMP_A0(SCMP_CMP_LE, 2)) != 0) {
return LOAD_SECCOMP_FAILED;
}
if (seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(lseek), 1, SCMP_A0(SCMP_CMP_LE, 2)) != 0) {
return LOAD_SECCOMP_FAILED;
}

12
tests/Python_and_core/testcase/integration/test.py
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@ -33,7 +33,7 @@ class IntegrationTest(base.BaseTestCase):
return super(IntegrationTest, self)._compile_c("../../test_src/integration/" + src_name, extra_flags)
def _compile_cpp(self, src_name):
return super(IntegrationTest, self)._compile_cpp("integration/" + src_name)
return super(IntegrationTest, self)._compile_cpp("../../test_src/integration/" + src_name)
def test_args_validation(self):
with self.assertRaisesRegexp(ValueError, "Invalid args and kwargs"):
@ -315,3 +315,13 @@ class IntegrationTest(base.BaseTestCase):
result = _judger.run(**config)
self.assertEqual(result["result"], _judger.RESULT_SUCCESS)
self.assertEqual("big stack", self.output_content(config["output_path"]))
def test_writev(self):
config = self.config
config["exe_path"] = self._compile_cpp("writev.cpp")
config["seccomp_rule_name"] = "c_cpp"
config["input_path"] = self.make_input("111" * 10000 + "\n")
config["output_path"] = config["error_path"] = self.output_path()
result = _judger.run(**config)
self.assertEqual(result["result"], _judger.RESULT_SUCCESS)

14
tests/test_src/integration/writev.cpp Normal file
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@ -0,0 +1,14 @@
#include <iostream>
#include <string>
#include <algorithm>
using namespace std;
int main()
{
ios::sync_with_stdio(false);
string s;
cin >> s;
cout << s;
return 0;
}