Ejemplo n.º 1
0
int main(int argc, char *argv[])
{
	int ret, whichtest;

	ret = prctl(PR_GET_KEEPCAPS);
	if (ret) {
		tst_resm(TBROK, "keepcaps was already set?\n");
		tst_exit();
	}
	if (!am_root()) {
		tst_resm(TBROK, "Run me as root and privileged\n");
		tst_exit();
	}

	if (argc < 2) {
		tst_resm(TBROK, "Usage: %s <tescase_num>", argv[0]);
		tst_exit();
	}
	whichtest = atoi(argv[1]);
	if (whichtest < 1 || whichtest > 3) {
		tst_resm(TFAIL, "Valid tests are 1-3\n");
		tst_exit();
	}
	switch(whichtest) {
	case 1:
		do_setuid(EXPECT_NOPRIVS); /* does not return */
	case 2:
		ret = prctl(PR_SET_KEEPCAPS, 1);
		if (ret == -1) {
			tst_resm(TFAIL|TERRNO, "PR_SET_KEEPCAPS failed\n");
			tst_exit();
		}
		ret = prctl(PR_GET_KEEPCAPS);
		if (!ret) {
			tst_resm(TFAIL|TERRNO, "PR_SET_KEEPCAPS did not set keepcaps\n");
			tst_exit();
		}
		do_setuid(EXPECT_PRIVS); /* does not return */
	case 3:
		ret = prctl(PR_GET_SECUREBITS);
		ret = prctl(PR_SET_SECUREBITS, ret | SECBIT_KEEP_CAPS);
		if (ret == -1) {
			tst_resm(TFAIL|TERRNO, "PR_SET_SECUREBITS failed\n");
			tst_exit();
		}
		ret = prctl(PR_GET_KEEPCAPS);
		if (!ret) {
			tst_resm(TFAIL|TERRNO, "PR_SET_SECUREBITS did not set keepcaps\n");
			tst_exit();
		}
		do_setuid(EXPECT_PRIVS); /* does not return */
	default:
		tst_resm(TFAIL, "should not reach here\n");
		tst_exit();
	}
	tst_resm(TFAIL, "should not reach here\n");
	tst_exit();
}
Ejemplo n.º 2
0
int main(int argc, char *argv[])
{
	int ret, whichtest;

	tst_require_root(NULL);

	ret = prctl(PR_GET_KEEPCAPS);
	if (ret)
		tst_brkm(TBROK, NULL, "keepcaps was already set?");

	if (argc < 2)
		tst_brkm(TBROK, NULL, "Usage: %s <tescase_num>", argv[0]);

	whichtest = atoi(argv[1]);
	if (whichtest < 1 || whichtest > 3)
		tst_brkm(TFAIL, NULL, "Valid tests are 1-3");

	switch (whichtest) {
	case 1:
		do_setuid(EXPECT_NOPRIVS);	/* does not return */
	case 2:
		ret = prctl(PR_SET_KEEPCAPS, 1);
		if (ret == -1) {
			tst_brkm(TFAIL | TERRNO, NULL,
				 "PR_SET_KEEPCAPS failed");
		}
		ret = prctl(PR_GET_KEEPCAPS);
		if (!ret) {
			tst_brkm(TFAIL | TERRNO, NULL,
				 "PR_SET_KEEPCAPS did not set keepcaps");
		}
		do_setuid(EXPECT_PRIVS);	/* does not return */
	case 3:
		ret = prctl(PR_GET_SECUREBITS);
		ret = prctl(PR_SET_SECUREBITS, ret | SECBIT_KEEP_CAPS);
		if (ret == -1) {
			tst_brkm(TFAIL | TERRNO, NULL,
				 "PR_SET_SECUREBITS failed");
		}
		ret = prctl(PR_GET_KEEPCAPS);
		if (!ret) {
			tst_brkm(TFAIL | TERRNO, NULL,
				 "PR_SET_SECUREBITS did not set keepcaps");
		}
		do_setuid(EXPECT_PRIVS);	/* does not return */
	default:
		tst_brkm(TFAIL, NULL, "Valid tests are 1-3");
	}
}
Ejemplo n.º 3
0
int main(void)
{
	int exit_status;

	/* Save the real and effective user IDs.  */
	ruid = getuid();
	exit_status = do_setuid();

	exit(exit_status);
}
Ejemplo n.º 4
0
/**
 * <Ring 1> The main loop of TASK MM.
 * 
 *****************************************************************************/
PUBLIC void task_mm()
{
	init_mm();

	while (1) {
		send_recv(RECEIVE, ANY, &mm_msg);
		int src = mm_msg.source;
		int reply = 1;

		int msgtype = mm_msg.type;

		switch (msgtype) {
		case FORK:
			mm_msg.RETVAL = do_fork();
			break;
		case EXIT:
			do_exit(mm_msg.STATUS);
			reply = 0;
			break;
		case EXEC:
			mm_msg.RETVAL = do_exec();
			break;
		case WAIT:
			do_wait();
			reply = 0;
			break;
		case KILL:
			mm_msg.RETVAL = do_kill();
			break; 
		case RAISE:
			mm_msg.RETVAL = do_raise();
			break;
		case BRK:
			mm_msg.RETVAL = do_brk();
			break;
		case ACCT:
			mm_msg.RETVAL = do_acct();
			break;
		case GETUID:
			mm_msg.RETVAL = do_getuid();
			break;
		case SETUID:
            mm_msg.RETVAL = do_setuid();
			break;
		case GETGID:
			mm_msg.RETVAL = do_getgid();
			break;
		case SETGID:
			mm_msg.RETVAL = do_setgid();
			break;
		case GETEUID:
			mm_msg.RETVAL = do_geteuid();
			break;
		case GETEGID:
			mm_msg.RETVAL = do_getegid();
			break;
		case SIGACTION:
			mm_msg.RETVAL = do_sigaction();
			break;
		case ALARM:
			mm_msg.RETVAL = do_alarm();
			break;
		default:
			dump_msg("MM::unknown msg", &mm_msg);
			assert(0);
			break;
		}

		if (reply) {
			mm_msg.type = SYSCALL_RET;
			send_recv(SEND, src, &mm_msg);
		}
	}
}