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selftests/seccomp: Allow get_metadata to XFAIL 

Since seccomp_get_metadata() depends on CHECKPOINT_RESTORE, XFAIL the
test if the ptrace reports it as missing.

Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Tycho Andersen <tycho@tycho.ws>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
This commit is contained in:
Kees Cook 2018-03-15 09:59:16 -07:00 committed by Shuah Khan
parent 55c1b5f4af
commit 6c3b6d5083
2 changed files with 38 additions and 3 deletions
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26
tools/testing/selftests/kselftest_harness.h
View File

@ -106,6 +106,27 @@
fprintf(TH_LOG_STREAM, "%s:%d:%s:" fmt "\n", \
__FILE__, __LINE__, _metadata->name, ##__VA_ARGS__)
/**
* XFAIL(statement, fmt, ...)
*
* @statement: statement to run after reporting XFAIL
* @fmt: format string
* @...: optional arguments
*
* This forces a "pass" after reporting a failure with an XFAIL prefix,
* and runs "statement", which is usually "return" or "goto skip".
*/
#define XFAIL(statement, fmt, ...) do { \
if (TH_LOG_ENABLED) { \
fprintf(TH_LOG_STREAM, "[ XFAIL! ] " fmt "\n", \
##__VA_ARGS__); \
} \
/* TODO: find a way to pass xfail to test runner process. */ \
_metadata->passed = 1; \
_metadata->trigger = 0; \
statement; \
} while (0)
/**
* TEST(test_name) - Defines the test function and creates the registration
* stub
@ -198,7 +219,7 @@
/**
* FIXTURE_SETUP(fixture_name) - Prepares the setup function for the fixture.
* *_metadata* is included so that ASSERT_* work as a convenience
* *_metadata* is included so that EXPECT_* and ASSERT_* work correctly.
*
* @fixture_name: fixture name
*
@ -221,6 +242,7 @@
FIXTURE_DATA(fixture_name) __attribute__((unused)) *self)
/**
* FIXTURE_TEARDOWN(fixture_name)
* *_metadata* is included so that EXPECT_* and ASSERT_* work correctly.
*
* @fixture_name: fixture name
*
@ -253,6 +275,8 @@
* Defines a test that depends on a fixture (e.g., is part of a test case).
* Very similar to TEST() except that *self* is the setup instance of fixture's
* datatype exposed for use by the implementation.
*
* Warning: use of ASSERT_* here will skip TEARDOWN.
*/
/* TODO(wad) register fixtures on dedicated test lists. */
#define TEST_F(fixture_name, test_name) \

15
tools/testing/selftests/seccomp/seccomp_bpf.c
View File

@ -2860,6 +2860,7 @@ TEST(get_metadata)
int pipefd[2];
char buf;
struct seccomp_metadata md;
long ret;
ASSERT_EQ(0, pipe(pipefd));
@ -2893,16 +2894,26 @@ TEST(get_metadata)
ASSERT_EQ(0, ptrace(PTRACE_ATTACH, pid));
ASSERT_EQ(pid, waitpid(pid, NULL, 0));
/* Past here must not use ASSERT or child process is never killed. */
md.filter_off = 0;
ASSERT_EQ(sizeof(md), ptrace(PTRACE_SECCOMP_GET_METADATA, pid, sizeof(md), &md));
errno = 0;
ret = ptrace(PTRACE_SECCOMP_GET_METADATA, pid, sizeof(md), &md);
EXPECT_EQ(sizeof(md), ret) {
if (errno == EINVAL)
XFAIL(goto skip, "Kernel does not support PTRACE_SECCOMP_GET_METADATA (missing CONFIG_CHECKPOINT_RESTORE?)");
}
EXPECT_EQ(md.flags, SECCOMP_FILTER_FLAG_LOG);
EXPECT_EQ(md.filter_off, 0);
md.filter_off = 1;
ASSERT_EQ(sizeof(md), ptrace(PTRACE_SECCOMP_GET_METADATA, pid, sizeof(md), &md));
ret = ptrace(PTRACE_SECCOMP_GET_METADATA, pid, sizeof(md), &md);
EXPECT_EQ(sizeof(md), ret);
EXPECT_EQ(md.flags, 0);
EXPECT_EQ(md.filter_off, 1);
skip:
ASSERT_EQ(0, kill(pid, SIGKILL));
}