netconfig.c revision 1.1 
1/*	$NetBSD: netconfig.c,v 1.1 2010/07/25 21:39:20 pooka 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 1.1 2010/07/25 21:39:20 pooka Exp $");
33#endif /* not lint */
34
35#include <sys/types.h>
36#include <sys/socket.h>
37#include <sys/ioctl.h>
38
39#include <net/route.h>
40
41#include <atf-c.h>
42#include <errno.h>
43#include <string.h>
44
45#include <rump/rump.h>
46#include <rump/rump_syscalls.h>
47
48#include "../../h_macros.h"
49
50static void
51netcfg_rump_makeshmif(const char *busname, char *ifname)
52{
53	int rv, ifnum;
54
55	if ((rv = rump_pub_shmif_create(busname, &ifnum)) != 0) {
56		atf_tc_fail("makeshmif: rump_pub_shmif_create %d", rv);
57	}
58	sprintf(ifname, "shmif%d", ifnum);
59}
60
61static void
62netcfg_rump_if(const char *ifname,
63	const char *addr, const char *mask, const char *bcast)
64{
65	struct ifaliasreq ia;
66	struct sockaddr_in *sin;
67	int s, rv;
68
69	s = -1;
70	if ((s = rump_sys_socket(PF_INET, SOCK_DGRAM, 0)) < 0) {
71		atf_tc_fail_errno("if config socket");
72	}
73
74	/* Address */
75	memset(&ia, 0, sizeof(ia));
76	strcpy(ia.ifra_name, ifname);
77	sin = (struct sockaddr_in *)&ia.ifra_addr;
78	sin->sin_family = AF_INET;
79	sin->sin_len = sizeof(struct sockaddr_in);
80	sin->sin_addr.s_addr = inet_addr(addr);
81
82	/* Netmask */
83	sin = (struct sockaddr_in *)&ia.ifra_mask;
84	sin->sin_family = AF_INET;
85	sin->sin_len = sizeof(struct sockaddr_in);
86	sin->sin_addr.s_addr = inet_addr(mask);
87
88	/* Broadcast address */
89	sin = (struct sockaddr_in *)&ia.ifra_broadaddr;
90	sin->sin_family = AF_INET;
91	sin->sin_len = sizeof(struct sockaddr_in);
92	sin->sin_addr.s_addr = inet_addr(bcast);
93
94	rv = rump_sys_ioctl(s, SIOCAIFADDR, &ia);
95	if (rv) {
96		atf_tc_fail_errno("SIOCAIFADDR");
97	}
98	rump_sys_close(s);
99}
100
101static void __unused
102netcfg_rump_route(const char *dst, const char *mask, const char *gw)
103{
104	size_t len;
105	struct {
106		struct rt_msghdr m_rtm;
107		uint8_t m_space[512];
108	} m_rtmsg;
109#define rtm m_rtmsg.m_rtm
110	uint8_t *bp = m_rtmsg.m_space;
111	struct sockaddr_in sinstore;
112	int s, rv;
113
114	s = rump_sys_socket(PF_ROUTE, SOCK_RAW, 0);
115	if (s == -1) {
116		atf_tc_fail_errno("routing socket");
117	}
118
119	memset(&m_rtmsg, 0, sizeof(m_rtmsg));
120	rtm.rtm_type = RTM_ADD;
121	rtm.rtm_flags = RTF_UP | RTF_GATEWAY | RTF_STATIC;
122	rtm.rtm_version = RTM_VERSION;
123	rtm.rtm_seq = 2;
124	rtm.rtm_addrs = RTA_DST | RTA_GATEWAY | RTA_NETMASK;
125
126	/* dst */
127	memset(&sinstore, 0, sizeof(sinstore));
128	sinstore.sin_family = AF_INET;
129	sinstore.sin_len = sizeof(sinstore);
130	sinstore.sin_addr.s_addr = inet_addr(dst);
131	memcpy(bp, &sinstore, sizeof(sinstore));
132	bp += sizeof(sinstore);
133
134	/* gw */
135	memset(&sinstore, 0, sizeof(sinstore));
136	sinstore.sin_family = AF_INET;
137	sinstore.sin_len = sizeof(sinstore);
138	sinstore.sin_addr.s_addr = inet_addr(gw);
139	memcpy(bp, &sinstore, sizeof(sinstore));
140	bp += sizeof(sinstore);
141
142	/* netmask */
143	memset(&sinstore, 0, sizeof(sinstore));
144	sinstore.sin_family = AF_INET;
145	sinstore.sin_len = sizeof(sinstore);
146	sinstore.sin_addr.s_addr = inet_addr(mask);
147	memcpy(bp, &sinstore, sizeof(sinstore));
148	bp += sizeof(sinstore);
149
150	len = bp - (uint8_t *)&m_rtmsg;
151	rtm.rtm_msglen = len;
152
153	rv = rump_sys_write(s, &m_rtmsg, len);
154	if (rv != (int)len) {
155		atf_tc_fail_errno("write routing message");
156	}
157	rump_sys_close(s);
158}
159