tcpip.c revision 156123
1/*
2 * $FreeBSD: head/usr.sbin/sysinstall/tcpip.c 156123 2006-02-28 21:49:33Z jhb $
3 *
4 * Copyright (c) 1995
5 *      Gary J Palmer. All rights reserved.
6 * Copyright (c) 1996
7 *      Jordan K. Hubbard. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer,
14 *    verbatim and that no modifications are made prior to this
15 *    point in the file.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
26 * OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
27 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
28 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 */
32
33/*
34 * All kinds of hacking also performed by jkh on this code.  Don't
35 * blame Gary for every bogosity you see here.. :-)
36 *
37 * -jkh
38 */
39
40#include "sysinstall.h"
41#include <sys/param.h>
42#include <sys/sysctl.h>
43#include <sys/socket.h>
44#include <netinet/in.h>
45#include <netdb.h>
46#include <paths.h>
47
48/* The help file for the TCP/IP setup screen */
49#define TCP_HELPFILE		"tcp"
50
51/* These are nasty, but they make the layout structure a lot easier ... */
52
53static char	hostname[HOSTNAME_FIELD_LEN], domainname[HOSTNAME_FIELD_LEN],
54		gateway[IPADDR_FIELD_LEN], nameserver[INET6_ADDRSTRLEN];
55static int	okbutton, cancelbutton;
56static char	ipaddr[IPADDR_FIELD_LEN], netmask[IPADDR_FIELD_LEN], extras[EXTRAS_FIELD_LEN];
57static char	ipv6addr[INET6_ADDRSTRLEN];
58
59/* What the screen size is meant to be */
60#define TCP_DIALOG_Y		0
61#define TCP_DIALOG_X		8
62#define TCP_DIALOG_WIDTH	COLS - 16
63#define TCP_DIALOG_HEIGHT	LINES - 2
64
65static Layout layout[] = {
66#define LAYOUT_HOSTNAME		0
67    { 1, 2, 25, HOSTNAME_FIELD_LEN - 1,
68      "Host:", "Your fully-qualified hostname, e.g. foo.bar.com",
69      hostname, STRINGOBJ, NULL },
70#define LAYOUT_DOMAINNAME	1
71    { 1, 35, 20, HOSTNAME_FIELD_LEN - 1,
72      "Domain:",
73      "The name of the domain that your machine is in, e.g. bar.com",
74      domainname, STRINGOBJ, NULL },
75#define LAYOUT_GATEWAY		2
76    { 5, 2, 18, IPADDR_FIELD_LEN - 1,
77      "IPv4 Gateway:",
78      "IPv4 address of host forwarding packets to non-local destinations",
79      gateway, STRINGOBJ, NULL },
80#define LAYOUT_NAMESERVER	3
81    { 5, 35, 18, INET6_ADDRSTRLEN - 1,
82      "Name server:", "IPv4 or IPv6 address of your local DNS server",
83      nameserver, STRINGOBJ, NULL },
84#define LAYOUT_IPADDR		4
85    { 10, 10, 18, IPADDR_FIELD_LEN - 1,
86      "IPv4 Address:",
87      "The IPv4 address to be used for this interface",
88      ipaddr, STRINGOBJ, NULL },
89#define LAYOUT_NETMASK		5
90    { 10, 35, 18, IPADDR_FIELD_LEN - 1,
91      "Netmask:",
92      "The netmask for this interface, e.g. 0xffffff00 for a class C network",
93      netmask, STRINGOBJ, NULL },
94#define LAYOUT_EXTRAS		6
95    { 14, 10, 37, HOSTNAME_FIELD_LEN - 1,
96      "Extra options to ifconfig (usually empty):",
97      "Any interface-specific options to ifconfig you would like to add",
98      extras, STRINGOBJ, NULL },
99#define LAYOUT_OKBUTTON		7
100    { 19, 15, 0, 0,
101      "OK", "Select this if you are happy with these settings",
102      &okbutton, BUTTONOBJ, NULL },
103#define LAYOUT_CANCELBUTTON	8
104    { 19, 35, 0, 0,
105      "CANCEL", "Select this if you wish to cancel this screen",
106      &cancelbutton, BUTTONOBJ, NULL },
107    LAYOUT_END,
108};
109
110#define _validByte(b) ((b) >= 0 && (b) <= 255)
111
112/* whine */
113static void
114feepout(char *msg)
115{
116    beep();
117    msgConfirm("%s", msg);
118}
119
120/* Verify IP address integrity */
121static int
122verifyIP(char *ip, unsigned long *mask, unsigned long *out)
123{
124    long a, b, c, d;
125    char *endptr;
126
127    unsigned long parsedip;
128    unsigned long max_addr = (255 << 24) | (255 << 16) | (255 << 8) | 255;
129
130    if (ip == NULL)
131	return 0;
132    a = strtol(ip, &endptr, 10);
133    if (*endptr++ != '.')
134	return 0;
135    b = strtol(endptr, &endptr, 10);
136    if (*endptr++ != '.')
137	return 0;
138    c = strtol(endptr, &endptr, 10);
139    if (*endptr++ != '.')
140	return 0;
141    d = strtol(endptr, &endptr, 10);
142    if (*endptr != '\0')
143	return 0;
144    if (!_validByte(a) || !_validByte(b) || !_validByte(c) || !_validByte(d))
145	return 0;
146    parsedip = (a << 24) | (b << 16) | (c << 8) | d;
147    if (out)
148	*out = parsedip;
149    /*
150     * The ip address must not be network or broadcast address.
151     */
152    if (mask && ((parsedip == (parsedip & *mask)) ||
153	(parsedip == ((parsedip & *mask) + max_addr - *mask))))
154	return 0;
155    return 1;
156}
157
158static int
159verifyIP6(char *ip)
160{
161    struct addrinfo hints, *res;
162
163    memset(&hints, 0, sizeof(hints));
164    hints.ai_family = AF_INET6;
165    hints.ai_socktype = SOCK_STREAM;
166    hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
167    if (getaddrinfo(ip, NULL, &hints, &res) == 0) {
168	freeaddrinfo(res);
169	return 1;
170    }
171    return 0;
172}
173
174/* Verify IPv4 netmask as being well-formed as
175   a 0x or AAA.BBB.CCC.DDD mask */
176static int
177verifyNetmask(const char *netmask, unsigned long *out)
178{
179    unsigned long mask;
180    long tmp;
181    char *endptr;
182
183    if (netmask[0] == '0' && (netmask[1] == 'x' || netmask[1] == 'X')) {
184        /* Parse out hex mask */
185        mask = strtoul(netmask, &endptr, 0);
186        if (*endptr != '\0')
187            return 0;
188    } else {
189        /* Parse out quad decimal mask */
190        tmp = strtoul(netmask, &endptr, 10);
191        if (!_validByte(tmp) || *endptr++ != '.')
192            return 0;
193	mask = tmp;
194        tmp = strtoul(endptr, &endptr, 10);
195        if (!_validByte(tmp) || *endptr++ != '.')
196            return 0;
197	mask = (mask << 8) + tmp;
198        tmp = strtoul(endptr, &endptr, 10);
199        if (!_validByte(tmp) || *endptr++ != '.')
200            return 0;
201	mask = (mask << 8) + tmp;
202        tmp = strtoul(endptr, &endptr, 10);
203        if (!_validByte(tmp) || *endptr++ != '\0')
204            return 0;
205	mask = (mask << 8) + tmp;
206    }
207    /* Verify that we have a continous netmask */
208    if ((((-mask & mask) - 1) | mask) != 0xffffffff)
209        return 0;
210    if (out)
211        *out = mask;
212    return 1;
213}
214
215static int
216verifyGW(char *gw, unsigned long *ip, unsigned long *mask)
217{
218    unsigned long parsedgw;
219
220    if (!verifyIP(gw, mask, &parsedgw))
221	return 0;
222    /* Gateway needs to be within the set of IPs reachable through the
223       interface */
224    if (ip && mask && ((parsedgw & *mask) != (*ip & *mask)))
225	return 0;
226    return 1;
227}
228
229/* Check for the settings on the screen - the per-interface stuff is
230   moved to the main handling code now to do it on the fly - sigh */
231static int
232verifySettings(void)
233{
234    unsigned long parsedip;
235    unsigned long parsednetmask;
236
237    if (!hostname[0])
238	feepout("Must specify a host name of some sort!");
239    else if (netmask[0] && !verifyNetmask(netmask, &parsednetmask))
240	feepout("Invalid netmask value");
241    else if (nameserver[0] && !verifyIP(nameserver, NULL, NULL) &&
242		    !verifyIP6(nameserver))
243	feepout("Invalid name server IP address specified");
244    else if (ipaddr[0] && !verifyIP(ipaddr, &parsednetmask, &parsedip))
245	feepout("Invalid IPv4 address");
246    else if (gateway[0] && strcmp(gateway, "NO") &&
247	     !verifyGW(gateway, ipaddr[0] ? &parsedip : NULL,
248		     netmask[0] ? &parsednetmask : NULL))
249	feepout("Invalid gateway IPv4 address specified");
250    else
251	return 1;
252    return 0;
253}
254
255static void
256dhcpGetInfo(Device *devp)
257{
258    char leasefile[PATH_MAX];
259
260    snprintf(leasefile, sizeof(leasefile), "%sdhclient.leases.%s",
261	_PATH_VARDB, devp->name);
262    /* If it fails, do it the old-fashioned way */
263    if (dhcpParseLeases(leasefile, hostname, domainname,
264			 nameserver, ipaddr, gateway, netmask) == -1) {
265	FILE *ifp;
266	char *cp, cmd[256], data[2048];
267	int i, j;
268
269	/* Bah, now we have to kludge getting the information from ifconfig */
270	snprintf(cmd, sizeof cmd, "ifconfig %s", devp->name);
271	ifp = popen(cmd, "r");
272	if (ifp) {
273	    j = fread(data, 1, sizeof(data), ifp);
274	    fclose(ifp);
275	    if (j < 0)	/* paranoia */
276		j = 0;
277	    data[j] = '\0';
278	    if (isDebug())
279		msgDebug("DHCP configured interface returns %s\n", data);
280	    /* XXX This is gross as it assumes a certain ordering to
281	       ifconfig's output! XXX */
282	    if ((cp = strstr(data, "inet ")) != NULL) {
283		i = 0;
284		cp += 5;	/* move over keyword */
285		while (*cp != ' ')
286		    ipaddr[i++] = *(cp++);
287		ipaddr[i] = '\0';
288		if (!strncmp(++cp, "netmask", 7)) {
289		    i = 0;
290		    cp += 8;
291		    while (*cp != ' ')
292			netmask[i++] = *(cp++);
293		    netmask[i] = '\0';
294		}
295	    }
296	}
297    }
298
299    /* If we didn't get a name server value, hunt for it in resolv.conf */
300    if (!nameserver[0] && file_readable("/etc/resolv.conf"))
301	configEnvironmentResolv("/etc/resolv.conf");
302    if (hostname[0])
303	variable_set2(VAR_HOSTNAME, hostname, 0);
304}
305
306static void
307rtsolGetInfo(Device *devp)
308{
309    FILE *ifp;
310    char *cp, cmd[256], data[2048];
311    int i;
312
313    snprintf(cmd, sizeof cmd, "ifconfig %s", devp->name);
314    if ((ifp = popen(cmd, "r")) == NULL)
315	return;
316    while (fgets(data, sizeof(data), ifp) != NULL) {
317	if (isDebug())
318	    msgDebug("RTSOL configured interface returns %s\n", data);
319	if ((cp = strstr(data, "inet6 ")) != NULL) {
320	    cp += 6;	/* move over keyword */
321	    if (strncmp(cp, "fe80:", 5)) {
322		i = 0;
323		while (*cp != ' ')
324		    ipv6addr[i++] = *(cp++);
325		ipv6addr[i] = '\0';
326	    }
327	}
328    }
329    fclose(ifp);
330}
331
332/* This is it - how to get TCP setup values */
333int
334tcpOpenDialog(Device *devp)
335{
336    WINDOW              *ds_win, *save = NULL;
337    ComposeObj          *obj = NULL;
338    int                 n = 0, filled = 0, cancel = FALSE;
339    int			max, ret = DITEM_SUCCESS;
340    int			use_dhcp = FALSE;
341    int			use_rtsol = FALSE;
342    char                *tmp;
343    char		title[80];
344
345    save = savescr();
346    /* Initialise vars from previous device values */
347    if (devp->private) {
348	DevInfo *di = (DevInfo *)devp->private;
349
350	SAFE_STRCPY(ipaddr, di->ipaddr);
351	SAFE_STRCPY(netmask, di->netmask);
352	SAFE_STRCPY(extras, di->extras);
353	use_dhcp = di->use_dhcp;
354	use_rtsol = di->use_rtsol;
355    }
356    else { /* See if there are any defaults */
357	char *cp;
358	char *old_interactive = NULL;
359
360	/*
361	 * This is a hack so that the dialogs below are interactive in a
362	 * script if we have requested interactive behavior.
363	 */
364	if (variable_get(VAR_NONINTERACTIVE) &&
365	  variable_get(VAR_NETINTERACTIVE)) {
366	    old_interactive = strdup(VAR_NONINTERACTIVE);
367	    variable_unset(VAR_NONINTERACTIVE);
368	}
369
370
371	/*
372	 * Try a RTSOL scan if such behavior is desired.
373	 * If the variable was configured and is YES, do it.
374	 * If it was configured to anything else, treat it as NO.
375	 * Otherwise, ask the question interactively.
376	 */
377	if (!variable_get(VAR_NO_INET6) &&
378	    (!variable_cmp(VAR_TRY_RTSOL, "YES") ||
379	    (variable_get(VAR_TRY_RTSOL)==0 && !msgNoYes("Do you want to try IPv6 configuration of the interface?")))) {
380	    int i;
381	    size_t len;
382
383	    i = 0;
384	    sysctlbyname("net.inet6.ip6.forwarding", NULL, 0, &i, sizeof(i));
385	    i = 1;
386	    sysctlbyname("net.inet6.ip6.accept_rtadv", NULL, 0, &i, sizeof(i));
387	    vsystem("ifconfig %s up", devp->name);
388	    len = sizeof(i);
389	    sysctlbyname("net.inet6.ip6.dad_count", &i, &len, NULL, 0);
390	    sleep(i + 1);
391	    Mkdir("/var/run");
392	    msgNotify("Scanning for RA servers...");
393	    if (0 == vsystem("rtsol %s", devp->name)) {
394		len = sizeof(i);
395		sysctlbyname("net.inet6.ip6.dad_count", &i, &len, NULL, 0);
396		sleep(i + 1);
397		rtsolGetInfo(devp);
398		use_rtsol = TRUE;
399	    } else
400		use_rtsol = FALSE;
401	}
402
403
404	/*
405	 * First try a DHCP scan if such behavior is desired.
406	 * If the variable was configured and is YES, do it.
407	 * If it was configured to anything else, treat it as NO.
408	 * Otherwise, ask the question interactively.
409	 */
410	if (!variable_cmp(VAR_TRY_DHCP, "YES") ||
411	    (variable_get(VAR_TRY_DHCP)==0 && !msgNoYes("Do you want to try DHCP configuration of the interface?"))) {
412	    Mkdir("/var/db");
413	    Mkdir("/var/run");
414	    Mkdir("/tmp");
415	    msgNotify("Scanning for DHCP servers...");
416	    /* XXX clear any existing lease */
417	    /* XXX limit protocol to N tries */
418	    if (0 == vsystem("dhclient %s", devp->name)) {
419		dhcpGetInfo(devp);
420		use_dhcp = TRUE;
421	    }
422	    else
423		use_dhcp = FALSE;
424	}
425
426	/* Restore old VAR_NONINTERACTIVE if needed. */
427	if (old_interactive != NULL) {
428	    variable_set2(VAR_NONINTERACTIVE, old_interactive, 0);
429	    free(old_interactive);
430	}
431
432	/* Special hack so it doesn't show up oddly in the tcpip setup menu */
433	if (!strcmp(gateway, "NO"))
434	    gateway[0] = '\0';
435
436	/* Get old IP address from variable space, if available */
437	if (!ipaddr[0]) {
438	    if ((cp = variable_get(VAR_IPADDR)) != NULL)
439		SAFE_STRCPY(ipaddr, cp);
440	    else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_IPADDR))) != NULL)
441		SAFE_STRCPY(ipaddr, cp);
442	}
443
444	/* Get old netmask from variable space, if available */
445	if (!netmask[0]) {
446	    if ((cp = variable_get(VAR_NETMASK)) != NULL)
447		SAFE_STRCPY(netmask, cp);
448	    else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_NETMASK))) != NULL)
449		SAFE_STRCPY(netmask, cp);
450	}
451
452	/* Get old extras string from variable space, if available */
453	if (!extras[0]) {
454	    if ((cp = variable_get(VAR_EXTRAS)) != NULL)
455		SAFE_STRCPY(extras, cp);
456	    else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_EXTRAS))) != NULL)
457		SAFE_STRCPY(extras, cp);
458	}
459    }
460
461    /* Look up values already recorded with the system, or blank the string variables ready to accept some new data */
462    if (!hostname[0]) {
463	tmp = variable_get(VAR_HOSTNAME);
464	if (tmp)
465	    SAFE_STRCPY(hostname, tmp);
466    }
467    if (!domainname[0]) {
468	tmp = variable_get(VAR_DOMAINNAME);
469	if (tmp)
470	    SAFE_STRCPY(domainname, tmp);
471    }
472    if (!gateway[0]) {
473	tmp = variable_get(VAR_GATEWAY);
474	if (tmp && strcmp(tmp, "NO"))
475	    SAFE_STRCPY(gateway, tmp);
476    }
477    if (!nameserver[0]) {
478	tmp = variable_get(VAR_NAMESERVER);
479	if (tmp)
480	    SAFE_STRCPY(nameserver, tmp);
481    }
482
483    /* If non-interactive, jump straight over the dialog crap and into config section */
484    if (variable_get(VAR_NONINTERACTIVE) &&
485	!variable_get(VAR_NETINTERACTIVE)) {
486	if (!hostname[0])
487	    msgConfirm("WARNING: hostname variable not set and is a non-optional\n"
488		       "parameter.  Please add this to your installation script\n"
489		       "or set the netInteractive variable (see sysinstall man page)");
490	else
491	    goto netconfig;
492    }
493
494    /* Now do all the screen I/O */
495    dialog_clear_norefresh();
496
497    /* Modify the help line for PLIP config */
498    if (!strncmp(devp->name, "plip", 4))
499	layout[LAYOUT_EXTRAS].help =
500         "For PLIP configuration, you must enter the peer's IP address here.";
501
502    /* We need a curses window */
503    tmp = " Network Configuration ";
504    if (ipv6addr[0])
505	tmp = string_concat(tmp, "(IPv6 ready) ");
506    if (!(ds_win = openLayoutDialog(TCP_HELPFILE, tmp,
507				    TCP_DIALOG_X, TCP_DIALOG_Y, TCP_DIALOG_WIDTH, TCP_DIALOG_HEIGHT))) {
508	beep();
509	msgConfirm("Cannot open TCP/IP dialog window!!");
510	restorescr(save);
511	return DITEM_FAILURE;
512    }
513
514    /* Draw interface configuration box */
515    draw_box(ds_win, TCP_DIALOG_Y + 9, TCP_DIALOG_X + 8, TCP_DIALOG_HEIGHT - 13, TCP_DIALOG_WIDTH - 17,
516	     dialog_attr, border_attr);
517    wattrset(ds_win, dialog_attr);
518    sprintf(title, " Configuration for Interface %s ", devp->name);
519    mvwaddstr(ds_win, TCP_DIALOG_Y + 9, TCP_DIALOG_X + 14, title);
520
521    /* Some more initialisation before we go into the main input loop */
522    obj = initLayoutDialog(ds_win, layout, TCP_DIALOG_X, TCP_DIALOG_Y, &max);
523
524reenter:
525    cancelbutton = okbutton = 0;
526    while (layoutDialogLoop(ds_win, layout, &obj, &n, max, &cancelbutton, &cancel)) {
527	/* Prevent this from being irritating if user really means NO */
528	if (filled < 3) {
529	    /* Insert a default value for the netmask, 0xffffff00 is
530	     * the most appropriate one (entire class C, or subnetted
531	     * class A/B network).
532	     */
533	    if (!netmask[0]) {
534		strcpy(netmask, "255.255.255.0");
535		RefreshStringObj(layout[LAYOUT_NETMASK].obj);
536		++filled;
537	    }
538	    if (!index(hostname, '.') && domainname[0]) {
539		strcat(hostname, ".");
540		strcat(hostname, domainname);
541		RefreshStringObj(layout[LAYOUT_HOSTNAME].obj);
542		++filled;
543	    }
544	    else if (((tmp = index(hostname, '.')) != NULL) && !domainname[0]) {
545		SAFE_STRCPY(domainname, tmp + 1);
546		RefreshStringObj(layout[LAYOUT_DOMAINNAME].obj);
547		++filled;
548	    }
549	}
550    }
551    if (!cancel && !verifySettings())
552	goto reenter;
553
554    /* Clear this crap off the screen */
555    delwin(ds_win);
556    dialog_clear_norefresh();
557    use_helpfile(NULL);
558
559    /* We actually need to inform the rest of sysinstall about this
560       data now if the user hasn't selected cancel.  Save the stuff
561       out to the environment via the variable_set() mechanism */
562
563netconfig:
564    if (!cancel) {
565	DevInfo *di;
566	char temp[512], ifn[255];
567#ifdef PCCARD_ARCH
568	char *pccard;
569#endif
570	int ipv4_enable = FALSE;
571
572	if (hostname[0]) {
573	    variable_set2(VAR_HOSTNAME, hostname, 1);
574	    sethostname(hostname, strlen(hostname));
575	}
576	if (domainname[0])
577	    variable_set2(VAR_DOMAINNAME, domainname, 0);
578	if (gateway[0])
579	    variable_set2(VAR_GATEWAY, gateway, use_dhcp ? 0 : 1);
580	if (nameserver[0])
581	    variable_set2(VAR_NAMESERVER, nameserver, 0);
582	if (ipaddr[0])
583	    variable_set2(VAR_IPADDR, ipaddr, 0);
584	if (ipv6addr[0])
585	    variable_set2(VAR_IPV6ADDR, ipv6addr, 0);
586
587	if (!devp->private)
588	    devp->private = (DevInfo *)safe_malloc(sizeof(DevInfo));
589	di = devp->private;
590	SAFE_STRCPY(di->ipaddr, ipaddr);
591	SAFE_STRCPY(di->netmask, netmask);
592	SAFE_STRCPY(di->extras, extras);
593	di->use_dhcp = use_dhcp;
594	di->use_rtsol = use_rtsol;
595
596	if (use_dhcp || ipaddr[0])
597	    ipv4_enable = TRUE;
598	if (ipv4_enable) {
599	    sprintf(ifn, "%s%s", VAR_IFCONFIG, devp->name);
600	    if (use_dhcp) {
601		if (strlen(extras) > 0)
602		    sprintf(temp, "DHCP %s", extras);
603		else
604		    sprintf(temp, "DHCP");
605	    } else
606		sprintf(temp, "inet %s %s netmask %s",
607			ipaddr, extras, netmask);
608	    variable_set2(ifn, temp, 1);
609	}
610#ifdef PCCARD_ARCH
611	pccard = variable_get("_pccard_install");
612	if (pccard && strcmp(pccard, "YES") == 0 && ipv4_enable) {
613	    variable_set2("pccard_ifconfig", temp, 1);
614	}
615#endif
616	if (use_rtsol)
617	    variable_set2(VAR_IPV6_ENABLE, "YES", 1);
618	if (!use_dhcp)
619	    configResolv(NULL);	/* XXX this will do it on the MFS copy XXX */
620	ret = DITEM_SUCCESS;
621    }
622    else
623	ret = DITEM_FAILURE;
624    restorescr(save);
625    return ret;
626}
627
628static Device *NetDev;
629
630static int
631netHook(dialogMenuItem *self)
632{
633    Device **devs;
634
635    devs = deviceFindDescr(self->prompt, self->title, DEVICE_TYPE_NETWORK);
636    if (devs) {
637	if (DITEM_STATUS(tcpOpenDialog(devs[0])) != DITEM_FAILURE)
638	    NetDev = devs[0];
639	else
640	    NetDev = NULL;
641    }
642    return devs ? DITEM_LEAVE_MENU : DITEM_FAILURE;
643}
644
645/* Get a network device */
646Device *
647tcpDeviceSelect(void)
648{
649    DMenu *menu;
650    Device **devs, *rval;
651    int cnt;
652
653    devs = deviceFind(variable_get(VAR_NETWORK_DEVICE), DEVICE_TYPE_NETWORK);
654    cnt = deviceCount(devs);
655    rval = NULL;
656
657    if (!cnt) {
658	msgConfirm("No network devices available!");
659	return NULL;
660    }
661    else if ((!RunningAsInit) && (variable_check("NETWORK_CONFIGURED=NO") != TRUE)) {
662	if (!msgYesNo("Running multi-user, assume that the network is already configured?"))
663	    return devs[0];
664    }
665    if (cnt == 1) {
666	if (DITEM_STATUS(tcpOpenDialog(devs[0]) == DITEM_SUCCESS))
667	    rval = devs[0];
668    }
669    else if (variable_get(VAR_NONINTERACTIVE) && variable_get(VAR_NETWORK_DEVICE)) {
670	devs = deviceFind(variable_get(VAR_NETWORK_DEVICE), DEVICE_TYPE_NETWORK);
671	cnt = deviceCount(devs);
672	if (cnt) {
673	    if (DITEM_STATUS(tcpOpenDialog(devs[0]) == DITEM_SUCCESS))
674		rval = devs[0];
675	}
676    }
677    else {
678	int status;
679
680	menu = deviceCreateMenu(&MenuNetworkDevice, DEVICE_TYPE_NETWORK, netHook, NULL);
681	if (!menu)
682	    msgFatal("Unable to create network device menu!  Argh!");
683	status = dmenuOpenSimple(menu, FALSE);
684	free(menu);
685	if (status)
686	    rval = NetDev;
687    }
688    return rval;
689}
690
691/* Do it from a menu that doesn't care about status */
692int
693tcpMenuSelect(dialogMenuItem *self)
694{
695    Device *tmp;
696    WINDOW *save;
697
698    variable_set("NETWORK_CONFIGURED=NO",0);
699    tmp = tcpDeviceSelect();
700    variable_unset("NETWORK_CONFIGURED");
701    save = savescr();
702    if (tmp && tmp->private && !((DevInfo *)tmp->private)->use_dhcp && !msgYesNo("Would you like to bring the %s interface up right now?", tmp->name))
703	if (!DEVICE_INIT(tmp))
704	    msgConfirm("Initialization of %s device failed.", tmp->name);
705    restorescr(save);
706    return DITEM_SUCCESS;
707}
708