1 /*-
2  * Copyright (c) 2009-2011 Robert N. M. Watson
3  * Copyright (c) 2011 Jonathan Anderson
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 /*
31  * Test routines to make sure a variety of system calls are or are not
32  * available in capability mode.  The goal is not to see if they work, just
33  * whether or not they return the expected ECAPMODE.
34  */
35 
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
38 
39 #include <sys/types.h>
40 
41 #include <sys/capsium.h>
42 #include <sys/errno.h>
43 #include <sys/procdesc.h>
44 #include <sys/resource.h>
45 #include <sys/stat.h>
46 #include <sys/wait.h>
47 
48 #include <err.h>
49 #include <stdlib.h>
50 #include <string.h>
51 #include <unistd.h>
52 
53 #include <stdio.h>
54 #include <time.h>
55 
56 #include "cap_test.h"
57 
58 int
59 test_pdfork(void)
60 {
61 	struct stat stat;
62 	int success = PASSED;
63 	int pd, error;
64 	pid_t pid;
65 	time_t now;
66 
67 	//cap_enter();
68 
69 	pid = pdfork(&pd, 0);
70 	if (pid < 0)
71 		err(-1, "pdfork");
72 
73 	else if (pid == 0) {
74 		/*
75 		 * Child process.
76 		 *
77 		 * pd should not be a valid process descriptor.
78 		 */
79 		error = pdgetpid(pd, &pid);
80 		if (error != -1)
81 			FAILX("pdgetpid succeeded");
82 		else if (errno != EBADF)
83 			FAIL("pdgetpid failed, but errno != EBADF");
84 
85 		exit(success);
86 	}
87 
88 	/* Parent process. Ensure that [acm]times have been set correctly. */
89 	REQUIRE(fstat(pd, &stat));
90 
91 	now = time(NULL);
92 	CHECK(now != (time_t)-1);
93 
94 	CHECK(now >= stat.st_birthtime);
95 	CHECK((now - stat.st_birthtime) < 2);
96 	CHECK(stat.st_birthtime == stat.st_atime);
97 	CHECK(stat.st_atime == stat.st_ctime);
98 	CHECK(stat.st_ctime == stat.st_mtime);
99 
100 	/* Wait for the child to finish. */
101 	error = pdgetpid(pd, &pid);
102 	CHECK(error == 0);
103 	CHECK(pid > 0);
104 
105 	int status;
106 	while (waitpid(pid, &status, 0) != pid) {}
107 	if ((success == PASSED) && WIFEXITED(status))
108 		success = WEXITSTATUS(status);
109 	else
110 		success = FAILED;
111 
112 	return (success);
113 }
114