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
58int noatf;
59
60static void __unused
61netcfg_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
74static void __unused
75netcfg_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
123static void __unused
124netcfg_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
188static bool __unused
189netcfg_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