1 /*
2  * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. The name of the author may not be used to endorse or promote products
14  *    derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 #include "tests.h"
29 #include <stdio.h>
30 #include <string.h>
31 #include <stdint.h>
32 #include <unistd.h>
33 #include <sys/socket.h>
34 #include "netlink.h"
35 #include <linux/xfrm.h>
36 
37 static void
test_nlmsg_type(const int fd)38 test_nlmsg_type(const int fd)
39 {
40 	long rc;
41 	struct nlmsghdr nlh = {
42 		.nlmsg_len = sizeof(nlh),
43 		.nlmsg_type = XFRM_MSG_NEWSA,
44 		.nlmsg_flags = NLM_F_REQUEST,
45 	};
46 
47 	rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
48 	printf("sendto(%d, {len=%u, type=XFRM_MSG_NEWSA"
49 	       ", flags=NLM_F_REQUEST, seq=0, pid=0}"
50 	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
51 	       fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
52 }
53 
54 static void
test_nlmsg_flags(const int fd)55 test_nlmsg_flags(const int fd)
56 {
57 	long rc;
58 	struct nlmsghdr nlh = {
59 		.nlmsg_len = sizeof(nlh),
60 	};
61 
62 	nlh.nlmsg_type = XFRM_MSG_GETSA;
63 	nlh.nlmsg_flags = NLM_F_DUMP;
64 	rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
65 	printf("sendto(%d, {len=%u, type=XFRM_MSG_GETSA"
66 	       ", flags=NLM_F_DUMP, seq=0, pid=0}"
67 	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
68 	       fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
69 
70 	nlh.nlmsg_type = XFRM_MSG_NEWSA;
71 	nlh.nlmsg_flags = NLM_F_REPLACE;
72 	rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
73 	printf("sendto(%d, {len=%u, type=XFRM_MSG_NEWSA"
74 	       ", flags=NLM_F_REPLACE, seq=0, pid=0}"
75 	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
76 	       fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
77 
78 	nlh.nlmsg_type = XFRM_MSG_DELSA;
79 	nlh.nlmsg_flags = NLM_F_ECHO | NLM_F_NONREC;
80 	rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
81 	printf("sendto(%d, {len=%u, type=XFRM_MSG_DELSA"
82 	       ", flags=NLM_F_ECHO|NLM_F_NONREC, seq=0, pid=0}"
83 	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
84 	       fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
85 
86 	nlh.nlmsg_type = XFRM_MSG_ALLOCSPI;
87 	nlh.nlmsg_flags = NLM_F_ECHO | NLM_F_REPLACE;
88 	rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
89 	printf("sendto(%d, {len=%u, type=XFRM_MSG_ALLOCSPI"
90 	       ", flags=NLM_F_ECHO|%#x, seq=0, pid=0}"
91 	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
92 	       fd, nlh.nlmsg_len, NLM_F_REPLACE,
93 	       (unsigned) sizeof(nlh), sprintrc(rc));
94 }
95 
main(void)96 int main(void)
97 {
98 	skip_if_unavailable("/proc/self/fd/");
99 
100 	int fd = create_nl_socket(NETLINK_XFRM);
101 
102 	test_nlmsg_type(fd);
103 	test_nlmsg_flags(fd);
104 
105 	printf("+++ exited with 0 +++\n");
106 
107 	return 0;
108 }
109