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