test: Add test ensuring seccomp ends with default rule, minor fixes
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ebeveyn
25d8ed9bca
işleme
c44ce85628
39
test.c
39
test.c
@ -5,6 +5,17 @@
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#include <sys/types.h>
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#include <sys/socket.h>
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int xqssb_enable_policy(struct qssb_policy *policy)
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{
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int ret = qssb_enable_policy(policy);
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if(ret != 0)
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{
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fprintf(stderr, "qssb_enable_policy() failed: %i\n", ret);
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exit(EXIT_FAILURE);
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}
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return 0;
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}
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int test_default_main(int argc, char *argv[])
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{
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struct qssb_policy *policy = qssb_init_policy();
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@ -15,10 +26,12 @@ int test_default_main(int argc, char *argv[])
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int test_seccomp_blacklisted(int argc, char *argv[])
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{
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struct qssb_policy *policy = qssb_init_policy();
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qssb_append_syscall_policy(policy, QSSB_SYSCALL_DENY_KILL_PROCESS, QSSB_SYS(getuid));
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int ret = qssb_enable_policy(policy);
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qssb_append_syscall_policy(policy, QSSB_SYSCALL_DENY_KILL_PROCESS, QSSB_SYS(getuid));
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qssb_append_syscall_default_policy(policy, QSSB_SYSCALL_ALLOW);
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xqssb_enable_policy(policy);
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uid_t pid = geteuid();
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pid = getuid();
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return 0;
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@ -41,14 +54,31 @@ int test_seccomp_x32_kill(int argc, char *argv[])
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struct qssb_policy *policy = qssb_init_policy();
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qssb_append_syscall_policy(policy, QSSB_SYSCALL_DENY_KILL_PROCESS, QSSB_SYS(getuid));
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qssb_append_syscall_default_policy(policy, QSSB_SYSCALL_ALLOW);
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int ret = qssb_enable_policy(policy);
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if(ret != 0)
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{
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fprintf(stderr, "Error: Enabling is expected to succeed. Returning 0 to indicate failure of this test\n");
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return 0;
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}
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/* Attempt to bypass by falling back to x32 should be blocked */
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qssb_append_syscall_policy(policy, QSSB_SYSCALL_DENY_KILL_PROCESS, QSSB_SYS(getuid)+__X32_SYSCALL_BIT);
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syscall(QSSB_SYS(getuid)+__X32_SYSCALL_BIT);
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return 0;
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}
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/* Tests whether seccomp rules end with a policy matching all syscalls */
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int test_seccomp_require_last_matchall(int argc, char *argv[])
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{
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struct qssb_policy *policy = qssb_init_policy();
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qssb_append_syscall_policy(policy, QSSB_SYSCALL_DENY_KILL_PROCESS, QSSB_SYS(getuid));
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return qssb_enable_policy(policy);
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}
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int test_landlock(int argc, char *argv[])
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{
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struct qssb_policy *policy = qssb_init_policy();
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@ -146,6 +176,7 @@ struct dispatcher dispatchers[] = {
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{ "seccomp-blacklisted", &test_seccomp_blacklisted, false },
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{ "seccomp-blacklisted-permitted", &test_seccomp_blacklisted_call_permitted, true },
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{ "seccomp-x32-kill", &test_seccomp_x32_kill, false},
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{ "seccomp-require-last-matchall", &test_seccomp_require_last_matchall, false},
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{ "landlock", &test_landlock, true },
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{ "landlock-deny-write", &test_landlock_deny_write, true },
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{ "no_fs", &test_nofs, false},
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