test: Refactor: Put seccomp tests into child processes ; Simplfy .sh
Refactor the test logic. Seccomp tests that can be killed run in their own subprocess now. All test functions now return 0 on success. Therefore, the shell script can be simplified.
This commit is contained in:
szülő
26f391f736
commit
b2b501d97e
142
test.c
142
test.c
@ -4,6 +4,7 @@
|
||||
#include <dirent.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/wait.h>
|
||||
|
||||
int xqssb_enable_policy(struct qssb_policy *policy)
|
||||
{
|
||||
@ -23,10 +24,70 @@ int test_default_main(int argc, char *argv[])
|
||||
return ret;
|
||||
}
|
||||
|
||||
int test_seccomp_blacklisted(int argc, char *argv[])
|
||||
static int test_expected_kill(int (*f)())
|
||||
{
|
||||
pid_t pid = fork();
|
||||
if(pid == 0)
|
||||
{
|
||||
return f();
|
||||
}
|
||||
int status = 0;
|
||||
waitpid(pid, &status, 0);
|
||||
|
||||
if(WIFSIGNALED(status))
|
||||
{
|
||||
int c = WTERMSIG(status);
|
||||
if(c == SIGSYS)
|
||||
{
|
||||
printf("Got expected signal\n");
|
||||
return 0;
|
||||
}
|
||||
printf("Unexpected status code: %i\n", c);
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
int c = WEXITSTATUS(status);
|
||||
printf("Process was not killed, test fails. Status code of exit: %i\n", c);
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int test_successful_exit(int (*f)())
|
||||
{
|
||||
pid_t pid = fork();
|
||||
if(pid == 0)
|
||||
{
|
||||
return f();
|
||||
}
|
||||
int status = 0;
|
||||
waitpid(pid, &status, 0);
|
||||
|
||||
if(WIFSIGNALED(status))
|
||||
{
|
||||
int c = WTERMSIG(status);
|
||||
printf("Received signal, which was not expected. Signal was: %i\n", c);
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
int c = WEXITSTATUS(status);
|
||||
if(c != 0)
|
||||
{
|
||||
printf("Process failed to exit properly. Status code is: %i\n", c);
|
||||
}
|
||||
return c;
|
||||
}
|
||||
printf("Process exited sucessfully as expected");
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int do_test_seccomp_blacklisted()
|
||||
{
|
||||
struct qssb_policy *policy = qssb_init_policy();
|
||||
|
||||
qssb_append_syscall_policy(policy, QSSB_SYSCALL_DENY_KILL_PROCESS, QSSB_SYS(getuid));
|
||||
qssb_append_syscall_default_policy(policy, QSSB_SYSCALL_ALLOW);
|
||||
|
||||
@ -35,9 +96,16 @@ int test_seccomp_blacklisted(int argc, char *argv[])
|
||||
uid_t pid = geteuid();
|
||||
pid = getuid();
|
||||
return 0;
|
||||
|
||||
|
||||
}
|
||||
int test_seccomp_blacklisted(int argc, char *argv[])
|
||||
{
|
||||
return test_expected_kill(&do_test_seccomp_blacklisted);
|
||||
}
|
||||
|
||||
int test_seccomp_blacklisted_call_permitted(int argc, char *argv[])
|
||||
|
||||
static int do_test_seccomp_blacklisted_call_permitted()
|
||||
{
|
||||
struct qssb_policy *policy = qssb_init_policy();
|
||||
|
||||
@ -50,19 +118,20 @@ int test_seccomp_blacklisted_call_permitted(int argc, char *argv[])
|
||||
return 0;
|
||||
}
|
||||
|
||||
int test_seccomp_x32_kill(int argc, char *argv[])
|
||||
|
||||
int test_seccomp_blacklisted_call_permitted(int argc, char *argv[])
|
||||
{
|
||||
return test_successful_exit(&do_test_seccomp_blacklisted_call_permitted);
|
||||
}
|
||||
|
||||
static int do_test_seccomp_x32_kill()
|
||||
{
|
||||
struct qssb_policy *policy = qssb_init_policy();
|
||||
|
||||
qssb_append_syscall_policy(policy, QSSB_SYSCALL_DENY_KILL_PROCESS, QSSB_SYS(getuid));
|
||||
qssb_append_syscall_default_policy(policy, QSSB_SYSCALL_ALLOW);
|
||||
|
||||
int ret = qssb_enable_policy(policy);
|
||||
if(ret != 0)
|
||||
{
|
||||
fprintf(stderr, "Error: Enabling is expected to succeed. Returning 0 to indicate failure of this test\n");
|
||||
return 0;
|
||||
}
|
||||
xqssb_enable_policy(policy);
|
||||
|
||||
/* Attempt to bypass by falling back to x32 should be blocked */
|
||||
syscall(QSSB_SYS(getuid)+__X32_SYSCALL_BIT);
|
||||
@ -70,6 +139,11 @@ int test_seccomp_x32_kill(int argc, char *argv[])
|
||||
return 0;
|
||||
}
|
||||
|
||||
int test_seccomp_x32_kill(int argc, char *argv[])
|
||||
{
|
||||
return test_expected_kill(&do_test_seccomp_x32_kill);
|
||||
}
|
||||
|
||||
/* Tests whether seccomp rules end with a policy matching all syscalls */
|
||||
int test_seccomp_require_last_matchall(int argc, char *argv[])
|
||||
{
|
||||
@ -77,13 +151,18 @@ int test_seccomp_require_last_matchall(int argc, char *argv[])
|
||||
|
||||
qssb_append_syscall_policy(policy, QSSB_SYSCALL_DENY_KILL_PROCESS, QSSB_SYS(getuid));
|
||||
|
||||
return qssb_enable_policy(policy);
|
||||
int status = qssb_enable_policy(policy);
|
||||
if(status == 0)
|
||||
{
|
||||
printf("Failed. Should not have been enabled!");
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int test_seccomp_errno(int argc, char *argv[])
|
||||
static int do_test_seccomp_errno()
|
||||
{
|
||||
struct qssb_policy *policy = qssb_init_policy();
|
||||
policy->not_dumpable = 0;
|
||||
|
||||
qssb_append_syscall_policy(policy, QSSB_SYSCALL_DENY_RET_ERROR, QSSB_SYS(close));
|
||||
qssb_append_syscall_default_policy(policy, QSSB_SYSCALL_ALLOW);
|
||||
@ -96,6 +175,13 @@ int test_seccomp_errno(int argc, char *argv[])
|
||||
return fd == -1 ? 0 : 1;
|
||||
}
|
||||
|
||||
|
||||
|
||||
int test_seccomp_errno(int argc, char *argv[])
|
||||
{
|
||||
return test_successful_exit(&do_test_seccomp_errno);
|
||||
}
|
||||
|
||||
int test_landlock(int argc, char *argv[])
|
||||
{
|
||||
struct qssb_policy *policy = qssb_init_policy();
|
||||
@ -138,14 +224,14 @@ int test_nofs(int argc, char *argv[])
|
||||
if(s == -1)
|
||||
{
|
||||
fprintf(stderr, "Failed to open socket but this was not requested by policy\n");
|
||||
return 0;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Expect seccomp to take care of this */
|
||||
if(open("/test", O_CREAT | O_WRONLY) >= 0)
|
||||
{
|
||||
fprintf(stderr, "Failed: Do not expect write access\n");
|
||||
return -1;
|
||||
fprintf(stderr, "Failed: We do not expect write access\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
@ -185,25 +271,23 @@ struct dispatcher
|
||||
{
|
||||
char *name;
|
||||
int (*f)(int, char **);
|
||||
bool must_exit_zero;
|
||||
};
|
||||
|
||||
struct dispatcher dispatchers[] = {
|
||||
{ "default", &test_default_main, true },
|
||||
{ "seccomp-blacklisted", &test_seccomp_blacklisted, false },
|
||||
{ "seccomp-blacklisted-permitted", &test_seccomp_blacklisted_call_permitted, true },
|
||||
{ "seccomp-x32-kill", &test_seccomp_x32_kill, false},
|
||||
{ "seccomp-require-last-matchall", &test_seccomp_require_last_matchall, false},
|
||||
{ "seccomp-errno", &test_seccomp_errno, true},
|
||||
{ "landlock", &test_landlock, true },
|
||||
{ "landlock-deny-write", &test_landlock_deny_write, true },
|
||||
{ "no_fs", &test_nofs, false},
|
||||
{ "no_new_fds", &test_no_new_fds, true}
|
||||
{ "default", &test_default_main },
|
||||
{ "seccomp-blacklisted", &test_seccomp_blacklisted},
|
||||
{ "seccomp-blacklisted-permitted", &test_seccomp_blacklisted_call_permitted},
|
||||
{ "seccomp-x32-kill", &test_seccomp_x32_kill},
|
||||
{ "seccomp-require-last-matchall", &test_seccomp_require_last_matchall},
|
||||
{ "seccomp-errno", &test_seccomp_errno},
|
||||
{ "landlock", &test_landlock},
|
||||
{ "landlock-deny-write", &test_landlock_deny_write },
|
||||
{ "no_fs", &test_nofs},
|
||||
{ "no_new_fds", &test_no_new_fds}
|
||||
};
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
|
||||
if(argc < 2)
|
||||
{
|
||||
fprintf(stderr, "Usage: %s [testname]\n", argv[0]);
|
||||
@ -214,7 +298,7 @@ int main(int argc, char *argv[])
|
||||
{
|
||||
for(unsigned int i = 0; i < sizeof(dispatchers)/sizeof(dispatchers[0]); i++)
|
||||
{
|
||||
printf("%s:%i\n", dispatchers[i].name, dispatchers[i].must_exit_zero ? 1 : 0);
|
||||
printf("%s\n", dispatchers[i].name);
|
||||
}
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
|
||||
28
test.sh
28
test.sh
@ -32,8 +32,7 @@ function runtest_success()
|
||||
function runtest()
|
||||
{
|
||||
testname="$1"
|
||||
must_exit_zero="$2"
|
||||
test_log_file="$3"
|
||||
test_log_file="$2"
|
||||
|
||||
echo "Running: $testname. Date: $(date)" > "${test_log_file}"
|
||||
|
||||
@ -42,24 +41,14 @@ function runtest()
|
||||
(./test $1 || exit $?) &>> "${test_log_file}"
|
||||
ret=$?
|
||||
SUCCESS="no"
|
||||
if [ $must_exit_zero -eq 1 ] ; then
|
||||
if [ $ret -eq 0 ] ; then
|
||||
runtest_success
|
||||
SUCCESS="yes"
|
||||
else
|
||||
runtest_fail
|
||||
fi
|
||||
if [ $ret -eq 0 ] ; then
|
||||
runtest_success
|
||||
SUCCESS="yes"
|
||||
else
|
||||
if [ $ret -eq 0 ] ; then
|
||||
runtest_fail
|
||||
else
|
||||
runtest_success
|
||||
SUCCESS="yes"
|
||||
fi
|
||||
runtest_fail
|
||||
fi
|
||||
|
||||
echo "Finished: ${testname}. Date: $(date). Return code: $ret. Success: $SUCCESS" >> "${test_log_file}"
|
||||
|
||||
echo "Finished: ${testname}. Date: $(date). Success: $SUCCESS" >> "${test_log_file}"
|
||||
}
|
||||
|
||||
GIT_ID=$( git log --pretty="format:%h" -n1 )
|
||||
@ -73,9 +62,8 @@ LOG_OUTPUT_DIR_PATH="${LOG_OUTPUT_DIR}/qssb_test_${GIT_ID}_${TIMESTAMP}"
|
||||
[ -d "$LOG_OUTPUT_DIR_PATH" ] || mkdir -p "$LOG_OUTPUT_DIR_PATH"
|
||||
|
||||
for test in $( ./test --dumptests ) ; do
|
||||
testname=$( echo $test | cut -d":" -f1 )
|
||||
must_exit_zero=$( echo "$test" | cut -d":" -f2 )
|
||||
runtest "$testname" $must_exit_zero "${LOG_OUTPUT_DIR_PATH}/log.${testname}"
|
||||
testname=$( echo $test )
|
||||
runtest "$testname" "${LOG_OUTPUT_DIR_PATH}/log.${testname}"
|
||||
done
|
||||
echo
|
||||
echo "Tests finished. Logs in $(realpath ${LOG_OUTPUT_DIR_PATH})"
|
||||
|
||||
Betöltés…
Reference in New Issue
Block a user