1 files changed, 316 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/rump/rumpkern/t_lwproc.c b/contrib/netbsd-tests/rump/rumpkern/t_lwproc.c
new file mode 100644
index 0000000..dcdfdb6
--- /dev/null
+++ b/contrib/netbsd-tests/rump/rumpkern/t_lwproc.c
@@ -0,0 +1,316 @@
+/*	$NetBSD: t_lwproc.c,v 1.5 2011/01/02 12:58:17 pooka Exp $	*/
+
+/*
+ * Copyright (c) 2010 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
+ * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <rump/rump.h>
+#include <rump/rump_syscalls.h>
+
+#include <atf-c.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <util.h>
+
+#include "../../h_macros.h"
+
+ATF_TC(makelwp);
+ATF_TC_HEAD(makelwp, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr", "tests that lwps can be attached to "
+	    "processes");
+}
+
+ATF_TC_BODY(makelwp, tc)
+{
+	struct lwp *l;
+	pid_t pid;
+
+	rump_init();
+	RZ(rump_pub_lwproc_newlwp(0));
+	ATF_REQUIRE_EQ(rump_pub_lwproc_newlwp(37), ESRCH);
+	l = rump_pub_lwproc_curlwp();
+
+	RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
+	ATF_REQUIRE(rump_pub_lwproc_curlwp() != l);
+	l = rump_pub_lwproc_curlwp();
+
+	RZ(rump_pub_lwproc_newlwp(rump_sys_getpid()));
+	ATF_REQUIRE(rump_pub_lwproc_curlwp() != l);
+
+	pid = rump_sys_getpid();
+	ATF_REQUIRE(pid != -1 && pid != 0);
+}
+
+ATF_TC(proccreds);
+ATF_TC_HEAD(proccreds, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr", "check that procs have different creds");
+}
+
+ATF_TC_BODY(proccreds, tc)
+{
+	struct lwp *l1, *l2;
+
+	rump_init();
+	RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
+	l1 = rump_pub_lwproc_curlwp();
+
+	RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
+	l2 = rump_pub_lwproc_curlwp();
+
+	RL(rump_sys_setuid(22));
+	ATF_REQUIRE_EQ(rump_sys_getuid(), 22);
+
+	rump_pub_lwproc_switch(l1);
+	ATF_REQUIRE_EQ(rump_sys_getuid(), 0); /* from parent, proc0 */
+	RL(rump_sys_setuid(11));
+	ATF_REQUIRE_EQ(rump_sys_getuid(), 11);
+
+	rump_pub_lwproc_switch(l2);
+	ATF_REQUIRE_EQ(rump_sys_getuid(), 22);
+	rump_pub_lwproc_newlwp(rump_sys_getpid());
+	ATF_REQUIRE_EQ(rump_sys_getuid(), 22);
+}
+
+
+ATF_TC(inherit);
+ATF_TC_HEAD(inherit, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr", "new processes inherit creds from "
+	    "parents");
+}
+
+ATF_TC_BODY(inherit, tc)
+{
+
+	rump_init();
+
+	RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
+	RL(rump_sys_setuid(66));
+	ATF_REQUIRE_EQ(rump_sys_getuid(), 66);
+
+	RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
+	ATF_REQUIRE_EQ(rump_sys_getuid(), 66);
+
+	/* release lwp and proc */
+	rump_pub_lwproc_releaselwp();
+	ATF_REQUIRE_EQ(rump_sys_getuid(), 0);
+}
+
+ATF_TC(lwps);
+ATF_TC_HEAD(lwps, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr", "proc can hold many lwps and is "
+	    "automatically g/c'd when the last one exits");
+}
+
+#define LOOPS 128
+ATF_TC_BODY(lwps, tc)
+{
+	struct lwp *l[LOOPS];
+	pid_t mypid;
+	struct lwp *l_orig;
+	int i;
+
+	rump_init();
+
+	RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
+	mypid = rump_sys_getpid();
+	RL(rump_sys_setuid(375));
+
+	l_orig = rump_pub_lwproc_curlwp();
+	for (i = 0; i < LOOPS; i++) {
+		mypid = rump_sys_getpid();
+		ATF_REQUIRE(mypid != -1 && mypid != 0);
+		RZ(rump_pub_lwproc_newlwp(mypid));
+		l[i] = rump_pub_lwproc_curlwp();
+		ATF_REQUIRE_EQ(rump_sys_getuid(), 375);
+	}
+
+	rump_pub_lwproc_switch(l_orig);
+	rump_pub_lwproc_releaselwp();
+	for (i = 0; i < LOOPS; i++) {
+		rump_pub_lwproc_switch(l[i]);
+		ATF_REQUIRE_EQ(rump_sys_getpid(), mypid);
+		ATF_REQUIRE_EQ(rump_sys_getuid(), 375);
+		rump_pub_lwproc_releaselwp();
+		ATF_REQUIRE_EQ(rump_sys_getpid(), 1);
+		ATF_REQUIRE_EQ(rump_sys_getuid(), 0);
+	}
+
+	ATF_REQUIRE_EQ(rump_pub_lwproc_newlwp(mypid), ESRCH);
+}
+
+ATF_TC(nolwprelease);
+ATF_TC_HEAD(nolwprelease, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr", "check that lwp context is required "
+	    "for lwproc_releaselwp()");
+}
+
+ATF_TC_BODY(nolwprelease, tc)
+{
+	int status;
+
+	switch (fork()) {
+	case 0:
+		rump_init();
+		rump_pub_lwproc_releaselwp();
+		atf_tc_fail("survived");
+		break;
+	case -1:
+		atf_tc_fail_errno("fork");
+		break;
+	default:
+		wait(&status);
+		ATF_REQUIRE(WIFSIGNALED(status));
+		ATF_REQUIRE_EQ(WTERMSIG(status), SIGABRT);
+
+	}
+}
+
+ATF_TC(nolwp);
+ATF_TC_HEAD(nolwp, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr", "check that curlwp for an implicit "
+	    "context is NULL");
+}
+
+ATF_TC_BODY(nolwp, tc)
+{
+
+	rump_init();
+	ATF_REQUIRE_EQ(rump_pub_lwproc_curlwp(), NULL);
+}
+
+ATF_TC(nullswitch);
+ATF_TC_HEAD(nullswitch, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr", "check that switching to NULL marks "
+	    "current lwp as not running");
+}
+
+ATF_TC_BODY(nullswitch, tc)
+{
+	struct lwp *l;
+
+	rump_init();
+	RZ(rump_pub_lwproc_newlwp(0));
+	l = rump_pub_lwproc_curlwp();
+	rump_pub_lwproc_switch(NULL);
+	/* if remains LP_RUNNING, next call will panic */
+	rump_pub_lwproc_switch(l);
+}
+
+ATF_TC(rfork);
+ATF_TC_HEAD(rfork, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr", "check that fork shares fd's");
+}
+
+ATF_TC_BODY(rfork, tc)
+{
+	struct stat sb;
+	struct lwp *l, *l2;
+	int fd;
+
+	RZ(rump_init());
+
+	ATF_REQUIRE_EQ(rump_pub_lwproc_rfork(RUMP_RFFDG|RUMP_RFCFDG), EINVAL);
+
+	RZ(rump_pub_lwproc_rfork(0));
+	l = rump_pub_lwproc_curlwp();
+
+	RL(fd = rump_sys_open("/file", O_RDWR | O_CREAT, 0777));
+
+	/* ok, first check rfork(RUMP_RFCFDG) does *not* preserve fd's */
+	RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
+	ATF_REQUIRE_ERRNO(EBADF, rump_sys_write(fd, &fd, sizeof(fd)) == -1);
+
+	/* then check that rfork(0) does */
+	rump_pub_lwproc_switch(l);
+	RZ(rump_pub_lwproc_rfork(0));
+	ATF_REQUIRE_EQ(rump_sys_write(fd, &fd, sizeof(fd)), sizeof(fd));
+	RL(rump_sys_fstat(fd, &sb));
+	l2 = rump_pub_lwproc_curlwp();
+
+	/*
+	 * check that the shared fd table is really shared by
+	 * closing fd in parent
+	 */
+	rump_pub_lwproc_switch(l);
+	RL(rump_sys_close(fd));
+	rump_pub_lwproc_switch(l2);
+	ATF_REQUIRE_ERRNO(EBADF, rump_sys_fstat(fd, &sb) == -1);
+
+	/* redo, this time copying the fd table instead of sharing it */
+	rump_pub_lwproc_releaselwp();
+	rump_pub_lwproc_switch(l);
+	RL(fd = rump_sys_open("/file", O_RDWR, 0777));
+	RZ(rump_pub_lwproc_rfork(RUMP_RFFDG));
+	ATF_REQUIRE_EQ(rump_sys_write(fd, &fd, sizeof(fd)), sizeof(fd));
+	RL(rump_sys_fstat(fd, &sb));
+	l2 = rump_pub_lwproc_curlwp();
+
+	/* check that the fd table is copied */
+	rump_pub_lwproc_switch(l);
+	RL(rump_sys_close(fd));
+	rump_pub_lwproc_switch(l2);
+	RL(rump_sys_fstat(fd, &sb));
+	ATF_REQUIRE_EQ(sb.st_size, sizeof(fd));
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+	ATF_TP_ADD_TC(tp, makelwp);
+	ATF_TP_ADD_TC(tp, proccreds);
+	ATF_TP_ADD_TC(tp, inherit);
+	ATF_TP_ADD_TC(tp, lwps);
+	ATF_TP_ADD_TC(tp, nolwprelease);
+	ATF_TP_ADD_TC(tp, nolwp);
+	ATF_TP_ADD_TC(tp, nullswitch);
+	ATF_TP_ADD_TC(tp, rfork);
+
+	return atf_no_error();
+}