1/*
2 * The new sysinstall program.
3 *
4 * This is probably the last attempt in the `sysinstall' line, the next
5 * generation being slated to essentially a complete rewrite.
6 *
7 * $FreeBSD$
8 *
9 * Copyright (c) 1995
10 *	Jordan Hubbard.  All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer,
17 *    verbatim and that no modifications are made prior to this
18 *    point in the file.
19 *
20 * 2. Redistributions in binary form must reproduce the above copyright
21 *    notice, this list of conditions and the following disclaimer in the
22 *    documentation and/or other materials provided with the distribution.
23 *
24 * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 */
37
38/* These routines deal with getting things off of network media */
39
40#include "sysinstall.h"
41#include <signal.h>
42#include <termios.h>
43#include <sys/fcntl.h>
44#include <sys/ioctl.h>
45#include <sys/stat.h>
46
47static Boolean	networkInitialized;
48
49Boolean
50mediaInitNetwork(Device *dev)
51{
52    int i;
53    char *rp;
54    char *cp, ifconfig[255];
55    WINDOW *w;
56
57    if (!RunningAsInit || networkInitialized)
58	return TRUE;
59
60    if (isDebug())
61	msgDebug("Init routine called for network device %s.\n", dev->name);
62
63    if (!file_readable("/etc/resolv.conf")) {
64	if (DITEM_STATUS(configResolv(NULL)) == DITEM_FAILURE) {
65	    msgConfirm("Can't seem to write out /etc/resolv.conf.  Net cannot be used.");
66	    return FALSE;
67	}
68    }
69
70    w = savescr();
71    dialog_clear_norefresh();
72
73    snprintf(ifconfig, 255, "%s%s", VAR_IFCONFIG, dev->name);
74    cp = variable_get(ifconfig);
75    if (cp) {
76	/*
77	 * If this interface isn't a DHCP one, bring it up.
78	 * If it is, then it's already up.
79	 */
80	if (strstr(cp, "DHCP") == NULL) {
81	    msgDebug("Not a DHCP interface.\n");
82	    i = vsystem("ifconfig %s %s", dev->name, cp);
83	    if (i) {
84		msgConfirm("Unable to configure the %s interface!\n"
85			   "This installation method cannot be used.",
86			   dev->name);
87		return FALSE;
88	    }
89	    rp = variable_get(VAR_GATEWAY);
90	    if (!rp || *rp == '0') {
91		msgConfirm("No gateway has been set. You will be unable to access hosts\n"
92			   "not on your local network");
93	    }
94	    else {
95		/*
96		 * Explicitly flush all routes to get back to a known sane
97		 * state. We don't need to check this exit code because if
98		 * anything fails it will show up in the route add below.
99		 */
100		system("route -n flush");
101		msgDebug("Adding default route to %s.\n", rp);
102		if (vsystem("route -n add default %s", rp) != 0) {
103		    msgConfirm("Failed to add a default route; please check "
104			       "your network configuration");
105		    return FALSE;
106		}
107	    }
108	} else {
109	    msgDebug("A DHCP interface.  Should already be up.\n");
110	}
111    } else if ((cp = variable_get(VAR_IPV6ADDR)) == NULL || *cp == '\0') {
112	msgConfirm("The %s device is not configured.  You will need to do so\n"
113		   "in the Networking configuration menu before proceeding.", dev->name);
114	return FALSE;
115    }
116
117    if (isDebug())
118	msgDebug("Network initialized successfully.\n");
119    networkInitialized = TRUE;
120    return TRUE;
121}
122
123void
124mediaShutdownNetwork(Device *dev)
125{
126    char *cp;
127
128    if (!RunningAsInit || !networkInitialized)
129	return;
130
131	msgDebug("Shutdown called for network device %s\n", dev->name);
132	int i;
133	char ifconfig[255];
134
135	snprintf(ifconfig, 255, "%s%s", VAR_IFCONFIG, dev->name);
136	cp = variable_get(ifconfig);
137	if (!cp)
138	    return;
139	msgDebug("ifconfig %s down\n", dev->name);
140	i = vsystem("ifconfig %s down", dev->name);
141	if (i)
142	    msgConfirm("Warning: Unable to down the %s interface properly", dev->name);
143	cp = variable_get(VAR_GATEWAY);
144	if (cp) {
145	    msgDebug("Deleting default route.\n");
146	    vsystem("route -n delete default");
147	}
148}
149
150