xref: /freebsd/contrib/netbsd-tests/net/config/netconfig.c (revision d8a0fe102c0cfdfcd5b818f850eff09d8536c9bc)
1 /*	$NetBSD: netconfig.c,v 1.9 2017/01/13 21:30:42 christos Exp $	*/
2 
3 /*-
4  * Copyright (c) 2010 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
17  * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
18  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
23  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29 
30 #include <sys/cdefs.h>
31 #ifndef lint
32 __RCSID("$NetBSD: netconfig.c,v 1.9 2017/01/13 21:30:42 christos Exp $");
33 #endif /* not lint */
34 
35 #include <sys/types.h>
36 #include <sys/socket.h>
37 #include <sys/ioctl.h>
38 
39 #include <arpa/inet.h>
40 
41 #include <net/route.h>
42 
43 #include <netinet/in.h>
44 #include <netinet/in_systm.h>
45 #include <netinet/ip.h>
46 #include <netinet/ip_icmp.h>
47 
48 #include <atf-c.h>
49 #include <err.h>
50 #include <errno.h>
51 #include <string.h>
52 
53 #include <rump/rump.h>
54 #include <rump/rump_syscalls.h>
55 
56 #include "h_macros.h"
57 
58 int noatf;
59 
60 static void __unused
61 netcfg_rump_makeshmif(const char *busname, char *ifname)
62 {
63 	int rv, ifnum;
64 
65 	if ((rv = rump_pub_shmif_create(busname, &ifnum)) != 0) {
66 		if (noatf)
67 			err(1, "makeshmif: rump_pub_shmif_create %d", rv);
68 		else
69 			atf_tc_fail("makeshmif: rump_pub_shmif_create %d", rv);
70 	}
71 	sprintf(ifname, "shmif%d", ifnum);
72 }
73 
74 static void __unused
75 netcfg_rump_if(const char *ifname, const char *addr, const char *mask)
76 {
77 	struct ifaliasreq ia;
78 	struct sockaddr_in *sin;
79 	in_addr_t inaddr, inmask;
80 	int s, rv;
81 
82 	s = -1;
83 	if ((s = rump_sys_socket(PF_INET, SOCK_DGRAM, 0)) < 0) {
84 		if (noatf)
85 			err(1, "if config socket");
86 		else
87 			atf_tc_fail_errno("if config socket");
88 	}
89 
90 	inaddr = inet_addr(addr);
91 	inmask = inet_addr(mask);
92 
93 	/* Address */
94 	memset(&ia, 0, sizeof(ia));
95 	strcpy(ia.ifra_name, ifname);
96 	sin = (struct sockaddr_in *)&ia.ifra_addr;
97 	sin->sin_family = AF_INET;
98 	sin->sin_len = sizeof(struct sockaddr_in);
99 	sin->sin_addr.s_addr = inaddr;
100 
101 	/* Netmask */
102 	sin = (struct sockaddr_in *)&ia.ifra_mask;
103 	sin->sin_family = AF_INET;
104 	sin->sin_len = sizeof(struct sockaddr_in);
105 	sin->sin_addr.s_addr = inmask;
106 
107 	/* Broadcast address */
108 	sin = (struct sockaddr_in *)&ia.ifra_broadaddr;
109 	sin->sin_family = AF_INET;
110 	sin->sin_len = sizeof(struct sockaddr_in);
111 	sin->sin_addr.s_addr = inaddr | ~inmask;
112 
113 	rv = rump_sys_ioctl(s, SIOCAIFADDR, &ia);
114 	if (rv == -1) {
115 		if (noatf)
116 			err(1, "SIOCAIFADDR");
117 		else
118 			atf_tc_fail_errno("SIOCAIFADDR");
119 	}
120 	rump_sys_close(s);
121 }
122 
123 static void __unused
124 netcfg_rump_route(const char *dst, const char *mask, const char *gw)
125 {
126 	size_t len;
127 	struct {
128 		struct rt_msghdr m_rtm;
129 		uint8_t m_space[512];
130 	} m_rtmsg;
131 #define rtm m_rtmsg.m_rtm
132 	uint8_t *bp = m_rtmsg.m_space;
133 	struct sockaddr_in sinstore;
134 	int s, rv;
135 
136 	s = rump_sys_socket(PF_ROUTE, SOCK_RAW, 0);
137 	if (s == -1) {
138 		if (noatf)
139 			err(1, "routing socket");
140 		else
141 			atf_tc_fail_errno("routing socket");
142 	}
143 
144 	memset(&m_rtmsg, 0, sizeof(m_rtmsg));
145 	rtm.rtm_type = RTM_ADD;
146 	rtm.rtm_flags = RTF_UP | RTF_GATEWAY | RTF_STATIC;
147 	rtm.rtm_version = RTM_VERSION;
148 	rtm.rtm_seq = 2;
149 	rtm.rtm_addrs = RTA_DST | RTA_GATEWAY | RTA_NETMASK;
150 
151 	/* dst */
152 	memset(&sinstore, 0, sizeof(sinstore));
153 	sinstore.sin_family = AF_INET;
154 	sinstore.sin_len = sizeof(sinstore);
155 	sinstore.sin_addr.s_addr = inet_addr(dst);
156 	memcpy(bp, &sinstore, sizeof(sinstore));
157 	bp += sizeof(sinstore);
158 
159 	/* gw */
160 	memset(&sinstore, 0, sizeof(sinstore));
161 	sinstore.sin_family = AF_INET;
162 	sinstore.sin_len = sizeof(sinstore);
163 	sinstore.sin_addr.s_addr = inet_addr(gw);
164 	memcpy(bp, &sinstore, sizeof(sinstore));
165 	bp += sizeof(sinstore);
166 
167 	/* netmask */
168 	memset(&sinstore, 0, sizeof(sinstore));
169 	sinstore.sin_family = AF_INET;
170 	sinstore.sin_len = sizeof(sinstore);
171 	sinstore.sin_addr.s_addr = inet_addr(mask);
172 	memcpy(bp, &sinstore, sizeof(sinstore));
173 	bp += sizeof(sinstore);
174 
175 	len = bp - (uint8_t *)&m_rtmsg;
176 	rtm.rtm_msglen = len;
177 
178 	rv = rump_sys_write(s, &m_rtmsg, len);
179 	if (rv != (int)len) {
180 		if (noatf)
181 			err(1, "write routing message");
182 		else
183 			atf_tc_fail_errno("write routing message");
184 	}
185 	rump_sys_close(s);
186 }
187 
188 static bool __unused
189 netcfg_rump_pingtest(const char *dst, int ms_timo)
190 {
191 	struct timeval tv;
192 	struct sockaddr_in sin;
193 	struct icmp icmp;
194 	socklen_t slen;
195 	int s;
196 	bool rv = false;
197 
198 	s = rump_sys_socket(PF_INET, SOCK_RAW, IPPROTO_ICMP);
199 	if (s == -1)
200 		return false;
201 	tv.tv_sec = ms_timo / 1000;
202 	tv.tv_usec = 1000 * (ms_timo % 1000);
203 	if (rump_sys_setsockopt(s, SOL_SOCKET, SO_RCVTIMEO,
204 	    &tv, sizeof(tv)) == -1)
205 		goto out;
206 
207 	memset(&sin, 0, sizeof(sin));
208 	sin.sin_len = sizeof(sin);
209 	sin.sin_family = AF_INET;
210 	sin.sin_addr.s_addr = inet_addr(dst);
211 
212 	memset(&icmp, 0, sizeof(icmp));
213 	icmp.icmp_type = ICMP_ECHO;
214 	icmp.icmp_id = htons(37);
215 	icmp.icmp_cksum = htons(0xf7da); /* precalc */
216 
217 	slen = sizeof(sin);
218 	if (rump_sys_sendto(s, &icmp, sizeof(icmp), 0,
219 	    (struct sockaddr *)&sin, slen) == -1) {
220 		goto out;
221 	}
222 
223 	if (rump_sys_recvfrom(s, &icmp, sizeof(icmp), 0,
224 	    (struct sockaddr *)&sin, &slen) == -1)
225 		goto out;
226 
227 	rv = true;
228  out:
229 	rump_sys_close(s);
230 	return rv;
231 }
232