583 lines
17 KiB
C
583 lines
17 KiB
C
/*
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* $FreeBSD$
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*
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* Copyright (c) 1995
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* Gary J Palmer. All rights reserved.
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* Copyright (c) 1996
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* Jordan K. Hubbard. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* verbatim and that no modifications are made prior to this
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* point in the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/*
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* All kinds of hacking also performed by jkh on this code. Don't
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* blame Gary for every bogosity you see here.. :-)
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*
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* -jkh
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*/
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#include "sysinstall.h"
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netdb.h>
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/* The help file for the TCP/IP setup screen */
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#define TCP_HELPFILE "tcp"
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/* These are nasty, but they make the layout structure a lot easier ... */
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static char hostname[HOSTNAME_FIELD_LEN], domainname[HOSTNAME_FIELD_LEN],
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gateway[IPADDR_FIELD_LEN], nameserver[INET6_ADDRSTRLEN];
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static int okbutton, cancelbutton;
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static char ipaddr[IPADDR_FIELD_LEN], netmask[IPADDR_FIELD_LEN], extras[EXTRAS_FIELD_LEN];
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static char ipv6addr[INET6_ADDRSTRLEN];
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/* What the screen size is meant to be */
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#define TCP_DIALOG_Y 0
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#define TCP_DIALOG_X 8
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#define TCP_DIALOG_WIDTH COLS - 16
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#define TCP_DIALOG_HEIGHT LINES - 2
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static Layout layout[] = {
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#define LAYOUT_HOSTNAME 0
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{ 1, 2, 25, HOSTNAME_FIELD_LEN - 1,
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"Host:", "Your fully-qualified hostname, e.g. foo.bar.com",
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hostname, STRINGOBJ, NULL },
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#define LAYOUT_DOMAINNAME 1
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{ 1, 35, 20, HOSTNAME_FIELD_LEN - 1,
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"Domain:",
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"The name of the domain that your machine is in, e.g. bar.com",
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domainname, STRINGOBJ, NULL },
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#define LAYOUT_GATEWAY 2
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{ 5, 2, 18, IPADDR_FIELD_LEN - 1,
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"IPv4 Gateway:",
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"IPv4 address of host forwarding packets to non-local destinations",
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gateway, STRINGOBJ, NULL },
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#define LAYOUT_NAMESERVER 3
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{ 5, 35, 18, INET6_ADDRSTRLEN - 1,
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"Name server:", "IPv4 or IPv6 address of your local DNS server",
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nameserver, STRINGOBJ, NULL },
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#define LAYOUT_IPADDR 4
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{ 10, 10, 18, IPADDR_FIELD_LEN - 1,
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"IPv4 Address:",
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"The IPv4 address to be used for this interface",
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ipaddr, STRINGOBJ, NULL },
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#define LAYOUT_NETMASK 5
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{ 10, 35, 18, IPADDR_FIELD_LEN - 1,
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"Netmask:",
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"The netmask for this interface, e.g. 0xffffff00 for a class C network",
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netmask, STRINGOBJ, NULL },
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#define LAYOUT_EXTRAS 6
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{ 14, 10, 37, HOSTNAME_FIELD_LEN - 1,
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"Extra options to ifconfig:",
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"Any interface-specific options to ifconfig you would like to add",
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extras, STRINGOBJ, NULL },
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#define LAYOUT_OKBUTTON 7
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{ 19, 15, 0, 0,
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"OK", "Select this if you are happy with these settings",
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&okbutton, BUTTONOBJ, NULL },
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#define LAYOUT_CANCELBUTTON 8
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{ 19, 35, 0, 0,
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"CANCEL", "Select this if you wish to cancel this screen",
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&cancelbutton, BUTTONOBJ, NULL },
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{ NULL },
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};
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#define _validByte(b) ((b) >= 0 && (b) <= 255)
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/* whine */
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static void
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feepout(char *msg)
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{
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beep();
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msgConfirm(msg);
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}
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/* Very basic IP address integrity check - could be drastically improved */
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static int
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verifyIP(char *ip)
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{
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int a, b, c, d;
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if (ip && sscanf(ip, "%d.%d.%d.%d", &a, &b, &c, &d) == 4 &&
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_validByte(a) && _validByte(b) && _validByte(c) &&
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_validByte(d) && (d != 255))
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return 1;
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else
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return 0;
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}
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static int
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verifyIP6(char *ip)
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{
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struct addrinfo hints, *res;
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_INET6;
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hints.ai_socktype = SOCK_STREAM;
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hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
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if (getaddrinfo(ip, NULL, &hints, &res) == 0) {
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freeaddrinfo(res);
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return 1;
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}
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return 0;
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}
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/* Check for the settings on the screen - the per-interface stuff is
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moved to the main handling code now to do it on the fly - sigh */
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static int
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verifySettings(void)
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{
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if (!hostname[0])
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feepout("Must specify a host name of some sort!");
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else if (gateway[0] && strcmp(gateway, "NO") && !verifyIP(gateway))
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feepout("Invalid gateway IPv4 address specified");
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else if (nameserver[0] && !verifyIP(nameserver) && !verifyIP6(nameserver))
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feepout("Invalid name server IP address specified");
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else if (netmask[0] && (netmask[0] < '0' && netmask[0] > '3'))
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feepout("Invalid netmask value");
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else if (ipaddr[0] && !verifyIP(ipaddr))
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feepout("Invalid IPv4 address");
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else
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return 1;
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return 0;
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}
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static void
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dhcpGetInfo(Device *devp)
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{
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/* If it fails, do it the old-fashioned way */
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if (dhcpParseLeases("/var/db/dhclient.leases", hostname, domainname,
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nameserver, ipaddr, gateway, netmask) == -1) {
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FILE *ifp;
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char *cp, cmd[256], data[2048];
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int i, j;
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/* Bah, now we have to kludge getting the information from ifconfig */
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snprintf(cmd, sizeof cmd, "ifconfig %s", devp->name);
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ifp = popen(cmd, "r");
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if (ifp) {
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j = fread(data, 1, sizeof(data), ifp);
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fclose(ifp);
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if (j < 0) /* paranoia */
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j = 0;
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data[j] = '\0';
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if (isDebug())
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msgDebug("DHCP configured interface returns %s\n", data);
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/* XXX This is gross as it assumes a certain ordering to
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ifconfig's output! XXX */
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if ((cp = strstr(data, "inet ")) != NULL) {
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i = 0;
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cp += 5; /* move over keyword */
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while (*cp != ' ')
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ipaddr[i++] = *(cp++);
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ipaddr[i] = '\0';
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if (!strncmp(++cp, "netmask", 7)) {
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i = 0;
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cp += 8;
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while (*cp != ' ')
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netmask[i++] = *(cp++);
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netmask[i] = '\0';
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}
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}
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}
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}
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/* If we didn't get a name server value, hunt for it in resolv.conf */
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if (!nameserver[0] && file_readable("/etc/resolv.conf"))
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configEnvironmentResolv("/etc/resolv.conf");
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if (hostname[0])
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variable_set2(VAR_HOSTNAME, hostname, 0);
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}
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static void
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rtsolGetInfo(Device *devp)
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{
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FILE *ifp;
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char *cp, cmd[256], data[2048];
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int i;
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snprintf(cmd, sizeof cmd, "ifconfig %s", devp->name);
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if ((ifp = popen(cmd, "r")) == NULL)
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return;
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while (fgets(data, sizeof(data), ifp) != NULL) {
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if (isDebug())
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msgDebug("RTSOL configured interface returns %s", data);
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if ((cp = strstr(data, "inet6 ")) != NULL) {
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cp += 6; /* move over keyword */
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if (strncmp(cp, "fe80:", 5)) {
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i = 0;
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while (*cp != ' ')
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ipv6addr[i++] = *(cp++);
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ipv6addr[i] = '\0';
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}
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}
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}
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fclose(ifp);
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}
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/* This is it - how to get TCP setup values */
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int
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tcpOpenDialog(Device *devp)
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{
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WINDOW *ds_win, *save = NULL;
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ComposeObj *obj = NULL;
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int n = 0, filled = 0, cancel = FALSE;
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int max, ret = DITEM_SUCCESS;
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int use_dhcp = FALSE;
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int use_rtsol = FALSE;
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char *tmp;
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char title[80];
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save = savescr();
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/* Initialise vars from previous device values */
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if (devp->private) {
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DevInfo *di = (DevInfo *)devp->private;
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SAFE_STRCPY(ipaddr, di->ipaddr);
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SAFE_STRCPY(netmask, di->netmask);
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SAFE_STRCPY(extras, di->extras);
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use_dhcp = di->use_dhcp;
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use_rtsol = di->use_rtsol;
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}
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else { /* See if there are any defaults */
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char *cp;
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/* Try a RTSOL scan if such behavior is desired */
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if (!variable_cmp(VAR_TRY_RTSOL, "YES") ||
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((!variable_cmp(VAR_TRY_RTSOL, "NO")) && (!msgYesNo("Do you want to try IPv6 configuration of the interface?")))) {
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int i;
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int len;
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i = 0;
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sysctlbyname("net.inet6.ip6.forwarding", NULL, 0, &i, sizeof(i));
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i = 1;
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sysctlbyname("net.inet6.ip6.accept_rtadv", NULL, 0, &i, sizeof(i));
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vsystem("ifconfig %s up", devp->name);
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len = sizeof(i);
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sysctlbyname("net.inet6.ip6.dad_count", &i, &len, NULL, 0);
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sleep(i + 1);
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Mkdir("/var/run");
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msgNotify("Scanning for RA servers...");
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if (0 == vsystem("rtsol %s", devp->name)) {
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len = sizeof(i);
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sysctlbyname("net.inet6.ip6.dad_count", &i, &len, NULL, 0);
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sleep(i + 1);
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rtsolGetInfo(devp);
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use_rtsol = TRUE;
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} else
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use_rtsol = FALSE;
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}
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/* First try a DHCP scan if such behavior is desired */
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if (!variable_cmp(VAR_TRY_DHCP, "YES") ||
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((!variable_cmp(VAR_TRY_DHCP, "NO")) && (!msgYesNo("Do you want to try DHCP configuration of the interface?")))) {
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Mkdir("/var/db");
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Mkdir("/var/run");
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Mkdir("/tmp");
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msgNotify("Scanning for DHCP servers...");
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if (0 == vsystem("dhclient -1 %s", devp->name)) {
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dhcpGetInfo(devp);
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use_dhcp = TRUE;
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}
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else
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use_dhcp = FALSE;
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}
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/* Special hack so it doesn't show up oddly in the tcpip setup menu */
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if (!strcmp(gateway, "NO"))
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gateway[0] = '\0';
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/* Get old IP address from variable space, if available */
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if (!ipaddr[0]) {
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if ((cp = variable_get(VAR_IPADDR)) != NULL)
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SAFE_STRCPY(ipaddr, cp);
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else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_IPADDR))) != NULL)
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SAFE_STRCPY(ipaddr, cp);
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}
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/* Get old netmask from variable space, if available */
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if (!netmask[0]) {
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if ((cp = variable_get(VAR_NETMASK)) != NULL)
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SAFE_STRCPY(netmask, cp);
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else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_NETMASK))) != NULL)
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SAFE_STRCPY(netmask, cp);
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}
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/* Get old extras string from variable space, if available */
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if (!extras[0]) {
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if ((cp = variable_get(VAR_EXTRAS)) != NULL)
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SAFE_STRCPY(extras, cp);
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else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_EXTRAS))) != NULL)
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SAFE_STRCPY(extras, cp);
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}
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}
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/* Look up values already recorded with the system, or blank the string variables ready to accept some new data */
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if (!hostname[0]) {
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tmp = variable_get(VAR_HOSTNAME);
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if (tmp)
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SAFE_STRCPY(hostname, tmp);
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}
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if (!domainname[0]) {
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tmp = variable_get(VAR_DOMAINNAME);
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if (tmp)
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SAFE_STRCPY(domainname, tmp);
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}
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if (!gateway[0]) {
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tmp = variable_get(VAR_GATEWAY);
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if (tmp && strcmp(tmp, "NO"))
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SAFE_STRCPY(gateway, tmp);
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}
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if (!nameserver[0]) {
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tmp = variable_get(VAR_NAMESERVER);
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if (tmp)
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SAFE_STRCPY(nameserver, tmp);
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}
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/* If non-interactive, jump straight over the dialog crap and into config section */
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if (variable_get(VAR_NONINTERACTIVE) &&
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!variable_get(VAR_NETINTERACTIVE)) {
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if (!hostname[0])
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msgConfirm("WARNING: hostname variable not set and is a non-optional\n"
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"parameter. Please add this to your installation script\n"
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"or set the netInteractive variable (see sysinstall man page)");
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else
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goto netconfig;
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}
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/* Now do all the screen I/O */
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dialog_clear_norefresh();
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/* We need a curses window */
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tmp = " Network Configuration ";
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if (ipv6addr[0])
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tmp = string_concat(tmp, "(IPv6 ready) ");
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if (!(ds_win = openLayoutDialog(TCP_HELPFILE, tmp,
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TCP_DIALOG_X, TCP_DIALOG_Y, TCP_DIALOG_WIDTH, TCP_DIALOG_HEIGHT))) {
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beep();
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msgConfirm("Cannot open TCP/IP dialog window!!");
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restorescr(save);
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return DITEM_FAILURE;
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}
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/* Draw interface configuration box */
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draw_box(ds_win, TCP_DIALOG_Y + 9, TCP_DIALOG_X + 8, TCP_DIALOG_HEIGHT - 13, TCP_DIALOG_WIDTH - 17,
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dialog_attr, border_attr);
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wattrset(ds_win, dialog_attr);
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sprintf(title, " Configuration for Interface %s ", devp->name);
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mvwaddstr(ds_win, TCP_DIALOG_Y + 9, TCP_DIALOG_X + 14, title);
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/* Some more initialisation before we go into the main input loop */
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obj = initLayoutDialog(ds_win, layout, TCP_DIALOG_X, TCP_DIALOG_Y, &max);
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reenter:
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cancelbutton = okbutton = 0;
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while (layoutDialogLoop(ds_win, layout, &obj, &n, max, &cancelbutton, &cancel)) {
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/* Prevent this from being irritating if user really means NO */
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if (filled < 3) {
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/* Insert a default value for the netmask, 0xffffff00 is
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* the most appropriate one (entire class C, or subnetted
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* class A/B network).
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*/
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if (!netmask[0]) {
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strcpy(netmask, "255.255.255.0");
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RefreshStringObj(layout[LAYOUT_NETMASK].obj);
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++filled;
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}
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if (!index(hostname, '.') && domainname[0]) {
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strcat(hostname, ".");
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strcat(hostname, domainname);
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RefreshStringObj(layout[LAYOUT_HOSTNAME].obj);
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++filled;
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}
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else if (((tmp = index(hostname, '.')) != NULL) && !domainname[0]) {
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SAFE_STRCPY(domainname, tmp + 1);
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RefreshStringObj(layout[LAYOUT_DOMAINNAME].obj);
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++filled;
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}
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}
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}
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if (!cancel && !verifySettings())
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goto reenter;
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|
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/* Clear this crap off the screen */
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delwin(ds_win);
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dialog_clear_norefresh();
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use_helpfile(NULL);
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|
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/* We actually need to inform the rest of sysinstall about this
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data now if the user hasn't selected cancel. Save the stuff
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out to the environment via the variable_set() mechanism */
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netconfig:
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if (!cancel) {
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DevInfo *di;
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char temp[512], ifn[255];
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char *ifaces;
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char *pccard;
|
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int ipv4_enable = FALSE;
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|
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if (hostname[0]) {
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variable_set2(VAR_HOSTNAME, hostname, 1);
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sethostname(hostname, strlen(hostname));
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}
|
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if (domainname[0])
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variable_set2(VAR_DOMAINNAME, domainname, 0);
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if (gateway[0])
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variable_set2(VAR_GATEWAY, gateway, use_dhcp ? 0 : 1);
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if (nameserver[0])
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variable_set2(VAR_NAMESERVER, nameserver, 0);
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if (ipaddr[0])
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variable_set2(VAR_IPADDR, ipaddr, 0);
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if (ipv6addr[0])
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variable_set2(VAR_IPV6ADDR, ipv6addr, 0);
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|
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if (!devp->private)
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devp->private = (DevInfo *)safe_malloc(sizeof(DevInfo));
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di = devp->private;
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SAFE_STRCPY(di->ipaddr, ipaddr);
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SAFE_STRCPY(di->netmask, netmask);
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SAFE_STRCPY(di->extras, extras);
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di->use_dhcp = use_dhcp;
|
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di->use_rtsol = use_rtsol;
|
|
|
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if (use_dhcp || ipaddr[0])
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ipv4_enable = TRUE;
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|
if (ipv4_enable) {
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sprintf(ifn, "%s%s", VAR_IFCONFIG, devp->name);
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if (use_dhcp)
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sprintf(temp, "DHCP");
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|
else
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|
sprintf(temp, "inet %s %s netmask %s",
|
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ipaddr, extras, netmask);
|
|
variable_set2(ifn, temp, 1);
|
|
}
|
|
pccard = variable_get("_pccard_install");
|
|
if (pccard && strcmp(pccard, "YES") == 0 && ipv4_enable) {
|
|
variable_set2("pccard_ifconfig", temp, 1);
|
|
}
|
|
ifaces = variable_get(VAR_INTERFACES);
|
|
if (!ifaces)
|
|
variable_set2(VAR_INTERFACES, ifaces = "lo0", 1);
|
|
/* Only add it if it's not there already */
|
|
if (strcmp(ifaces, "auto") && !strstr(ifaces, devp->name)) {
|
|
sprintf(ifn, "%s %s", devp->name, ifaces);
|
|
variable_set2(VAR_INTERFACES, ifn, 1);
|
|
}
|
|
if (use_rtsol)
|
|
variable_set2(VAR_IPV6_ENABLE, "YES", 1);
|
|
if (!use_dhcp)
|
|
configResolv(NULL); /* XXX this will do it on the MFS copy XXX */
|
|
ret = DITEM_SUCCESS;
|
|
}
|
|
else
|
|
ret = DITEM_FAILURE;
|
|
restorescr(save);
|
|
return ret;
|
|
}
|
|
|
|
static Device *NetDev;
|
|
|
|
static int
|
|
netHook(dialogMenuItem *self)
|
|
{
|
|
Device **devs;
|
|
|
|
devs = deviceFindDescr(self->prompt, self->title, DEVICE_TYPE_NETWORK);
|
|
if (devs) {
|
|
if (DITEM_STATUS(tcpOpenDialog(devs[0])) != DITEM_FAILURE)
|
|
NetDev = devs[0];
|
|
else
|
|
NetDev = NULL;
|
|
}
|
|
return devs ? DITEM_LEAVE_MENU : DITEM_FAILURE;
|
|
}
|
|
|
|
/* Get a network device */
|
|
Device *
|
|
tcpDeviceSelect(void)
|
|
{
|
|
DMenu *menu;
|
|
Device **devs, *rval;
|
|
int cnt;
|
|
|
|
devs = deviceFind(NULL, DEVICE_TYPE_NETWORK);
|
|
cnt = deviceCount(devs);
|
|
rval = NULL;
|
|
|
|
if (!cnt) {
|
|
msgConfirm("No network devices available!");
|
|
return NULL;
|
|
}
|
|
else if ((!RunningAsInit) && (variable_check("NETWORK_CONFIGURED=NO") != TRUE)) {
|
|
if (!msgYesNo("Running multi-user, assume that the network is already configured?"))
|
|
return devs[0];
|
|
}
|
|
if (cnt == 1) {
|
|
if (DITEM_STATUS(tcpOpenDialog(devs[0]) == DITEM_SUCCESS))
|
|
rval = devs[0];
|
|
}
|
|
else if (variable_get(VAR_NONINTERACTIVE) && variable_get(VAR_NETWORK_DEVICE)) {
|
|
devs = deviceFind(variable_get(VAR_NETWORK_DEVICE), DEVICE_TYPE_NETWORK);
|
|
cnt = deviceCount(devs);
|
|
if (cnt) {
|
|
if (DITEM_STATUS(tcpOpenDialog(devs[0]) == DITEM_SUCCESS))
|
|
rval = devs[0];
|
|
}
|
|
}
|
|
else {
|
|
int status;
|
|
|
|
menu = deviceCreateMenu(&MenuNetworkDevice, DEVICE_TYPE_NETWORK, netHook, NULL);
|
|
if (!menu)
|
|
msgFatal("Unable to create network device menu! Argh!");
|
|
status = dmenuOpenSimple(menu, FALSE);
|
|
free(menu);
|
|
if (status)
|
|
rval = NetDev;
|
|
}
|
|
return rval;
|
|
}
|
|
|
|
/* Do it from a menu that doesn't care about status */
|
|
int
|
|
tcpMenuSelect(dialogMenuItem *self)
|
|
{
|
|
Device *tmp;
|
|
WINDOW *save;
|
|
|
|
variable_set("NETWORK_CONFIGURED=NO",0);
|
|
tmp = tcpDeviceSelect();
|
|
variable_unset("NETWORK_CONFIGURED");
|
|
save = savescr();
|
|
if (tmp && tmp->private && !((DevInfo *)tmp->private)->use_dhcp && !msgYesNo("Would you like to bring the %s interface up right now?", tmp->name))
|
|
if (!tmp->init(tmp))
|
|
msgConfirm("Initialization of %s device failed.", tmp->name);
|
|
restorescr(save);
|
|
return DITEM_SUCCESS;
|
|
}
|