1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
4 * Author: Saji Kumar.V.R <saji.kumar@wipro.com>
5 *
6 * Description:
7 * This case tests capget() syscall whether works well on three versions.
8 * Also, it checks the results buffer.
9 */
10 #include <sys/types.h>
11 #include "tst_test.h"
12 #include "lapi/syscalls.h"
13 #include <linux/capability.h>
14
15 static pid_t pid;
16 static struct __user_cap_header_struct *hdr;
17 static struct __user_cap_data_struct *data;
18
19 static struct tcase {
20 int version;
21 char *message;
22 } tcases[] = {
23 {0x19980330, "Test on LINUX_CAPABILITY_VERSION_1"},
24 {0x20071026, "Test on LINUX_CAPABILITY_VERSION_2"},
25 {0x20080522, "Test on LINUX_CAPABILITY_VERSION_3"},
26 };
27
verify_capget(unsigned int n)28 static void verify_capget(unsigned int n)
29 {
30 struct tcase *tc = &tcases[n];
31
32 tst_res(TINFO, "%s", tc->message);
33
34 hdr->version = tc->version;
35 hdr->pid = pid;
36 TEST(tst_syscall(__NR_capget, hdr, data));
37 if (TST_RET == 0)
38 tst_res(TPASS, "capget() returned %ld", TST_RET);
39 else
40 tst_res(TFAIL | TTERRNO, "Test Failed, capget() returned %ld",
41 TST_RET);
42
43 if (data[0].effective & 1 << CAP_NET_RAW)
44 tst_res(TFAIL, "capget() gets CAP_NET_RAW unexpectedly in pE");
45 else
46 tst_res(TPASS, "capget() doesn't get CAP_NET_RAW as expected in PE");
47 }
48
setup(void)49 static void setup(void)
50 {
51 pid = getpid();
52 }
53
54 static struct tst_test test = {
55 .setup = setup,
56 .tcnt = ARRAY_SIZE(tcases),
57 .test = verify_capget,
58 .caps = (struct tst_cap []) {
59 TST_CAP(TST_CAP_DROP, CAP_NET_RAW),
60 {}
61 },
62 .bufs = (struct tst_buffers []) {
63 {&hdr, .size = sizeof(*hdr)},
64 {&data, .size = 2 * sizeof(*data)},
65 {},
66 }
67 };
68