tcpip.c revision 155380
1/*
2 * $FreeBSD: head/usr.sbin/sysinstall/tcpip.c 155380 2006-02-06 06:49:57Z delphij $
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    { 0 },
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    unsigned 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        mask = strtoul(netmask, &endptr, 10);
191        if (!_validByte(mask) || *endptr++ != '.')
192            return 0;
193        tmp = strtoul(endptr, &endptr, 10);
194        if (!_validByte(tmp) || *endptr++ != '.')
195            return 0;
196	mask = (mask << 8) + tmp;
197        tmp = strtoul(endptr, &endptr, 10);
198        if (!_validByte(tmp) || *endptr++ != '.')
199            return 0;
200	mask = (mask << 8) + tmp;
201        tmp = strtoul(endptr, &endptr, 10);
202        if (!_validByte(tmp) || *endptr++ != '\0')
203            return 0;
204	mask = (mask << 8) + tmp;
205    }
206    /* Verify that we have a continous netmask */
207    if ((((-mask & mask) - 1) | mask) != 0xffffffff)
208        return 0;
209    if (out)
210        *out = mask;
211    return 1;
212}
213
214static int
215verifyGW(char *gw, unsigned long *ip, unsigned long *mask)
216{
217    unsigned long parsedgw;
218
219    if (!verifyIP(gw, mask, &parsedgw))
220	return 0;
221    /* Gateway needs to be within the set of IPs reachable through the
222       interface */
223    if (ip && mask && ((parsedgw & *mask) != (*ip & *mask)))
224	return 0;
225    return 1;
226}
227
228/* Check for the settings on the screen - the per-interface stuff is
229   moved to the main handling code now to do it on the fly - sigh */
230static int
231verifySettings(void)
232{
233    unsigned long parsedip;
234    unsigned long parsednetmask;
235
236    if (!hostname[0])
237	feepout("Must specify a host name of some sort!");
238    else if (netmask[0] && !verifyNetmask(netmask, &parsednetmask))
239	feepout("Invalid netmask value");
240    else if (nameserver[0] && !verifyIP(nameserver, NULL, NULL) &&
241		    !verifyIP6(nameserver))
242	feepout("Invalid name server IP address specified");
243    else if (ipaddr[0] && !verifyIP(ipaddr, &parsednetmask, &parsedip))
244	feepout("Invalid IPv4 address");
245    else if (gateway[0] && strcmp(gateway, "NO") &&
246	     !verifyGW(gateway, ipaddr[0] ? &parsedip : NULL,
247		     netmask[0] ? &parsednetmask : NULL))
248	feepout("Invalid gateway IPv4 address specified");
249    else
250	return 1;
251    return 0;
252}
253
254static void
255dhcpGetInfo(Device *devp)
256{
257    char leasefile[PATH_MAX];
258
259    snprintf(leasefile, sizeof(leasefile), "%sdhclient.leases.%s",
260	_PATH_VARDB, devp->name);
261    /* If it fails, do it the old-fashioned way */
262    if (dhcpParseLeases(leasefile, hostname, domainname,
263			 nameserver, ipaddr, gateway, netmask) == -1) {
264	FILE *ifp;
265	char *cp, cmd[256], data[2048];
266	int i, j;
267
268	/* Bah, now we have to kludge getting the information from ifconfig */
269	snprintf(cmd, sizeof cmd, "ifconfig %s", devp->name);
270	ifp = popen(cmd, "r");
271	if (ifp) {
272	    j = fread(data, 1, sizeof(data), ifp);
273	    fclose(ifp);
274	    if (j < 0)	/* paranoia */
275		j = 0;
276	    data[j] = '\0';
277	    if (isDebug())
278		msgDebug("DHCP configured interface returns %s\n", data);
279	    /* XXX This is gross as it assumes a certain ordering to
280	       ifconfig's output! XXX */
281	    if ((cp = strstr(data, "inet ")) != NULL) {
282		i = 0;
283		cp += 5;	/* move over keyword */
284		while (*cp != ' ')
285		    ipaddr[i++] = *(cp++);
286		ipaddr[i] = '\0';
287		if (!strncmp(++cp, "netmask", 7)) {
288		    i = 0;
289		    cp += 8;
290		    while (*cp != ' ')
291			netmask[i++] = *(cp++);
292		    netmask[i] = '\0';
293		}
294	    }
295	}
296    }
297
298    /* If we didn't get a name server value, hunt for it in resolv.conf */
299    if (!nameserver[0] && file_readable("/etc/resolv.conf"))
300	configEnvironmentResolv("/etc/resolv.conf");
301    if (hostname[0])
302	variable_set2(VAR_HOSTNAME, hostname, 0);
303}
304
305static void
306rtsolGetInfo(Device *devp)
307{
308    FILE *ifp;
309    char *cp, cmd[256], data[2048];
310    int i;
311
312    snprintf(cmd, sizeof cmd, "ifconfig %s", devp->name);
313    if ((ifp = popen(cmd, "r")) == NULL)
314	return;
315    while (fgets(data, sizeof(data), ifp) != NULL) {
316	if (isDebug())
317	    msgDebug("RTSOL configured interface returns %s\n", data);
318	if ((cp = strstr(data, "inet6 ")) != NULL) {
319	    cp += 6;	/* move over keyword */
320	    if (strncmp(cp, "fe80:", 5)) {
321		i = 0;
322		while (*cp != ' ')
323		    ipv6addr[i++] = *(cp++);
324		ipv6addr[i] = '\0';
325	    }
326	}
327    }
328    fclose(ifp);
329}
330
331/* This is it - how to get TCP setup values */
332int
333tcpOpenDialog(Device *devp)
334{
335    WINDOW              *ds_win, *save = NULL;
336    ComposeObj          *obj = NULL;
337    int                 n = 0, filled = 0, cancel = FALSE;
338    int			max, ret = DITEM_SUCCESS;
339    int			use_dhcp = FALSE;
340    int			use_rtsol = FALSE;
341    char                *tmp;
342    char		title[80];
343
344    save = savescr();
345    /* Initialise vars from previous device values */
346    if (devp->private) {
347	DevInfo *di = (DevInfo *)devp->private;
348
349	SAFE_STRCPY(ipaddr, di->ipaddr);
350	SAFE_STRCPY(netmask, di->netmask);
351	SAFE_STRCPY(extras, di->extras);
352	use_dhcp = di->use_dhcp;
353	use_rtsol = di->use_rtsol;
354    }
355    else { /* See if there are any defaults */
356	char *cp;
357	char *old_interactive = NULL;
358
359	/*
360	 * This is a hack so that the dialogs below are interactive in a
361	 * script if we have requested interactive behavior.
362	 */
363	if (variable_get(VAR_NONINTERACTIVE) &&
364	  variable_get(VAR_NETINTERACTIVE)) {
365	    old_interactive = strdup(VAR_NONINTERACTIVE);
366	    variable_unset(VAR_NONINTERACTIVE);
367	}
368
369
370	/*
371	 * Try a RTSOL scan if such behavior is desired.
372	 * If the variable was configured and is YES, do it.
373	 * If it was configured to anything else, treat it as NO.
374	 * Otherwise, ask the question interactively.
375	 */
376	if (!variable_get(VAR_NO_INET6) &&
377	    (!variable_cmp(VAR_TRY_RTSOL, "YES") ||
378	    (variable_get(VAR_TRY_RTSOL)==0 && !msgNoYes("Do you want to try IPv6 configuration of the interface?")))) {
379	    int i;
380	    size_t len;
381
382	    i = 0;
383	    sysctlbyname("net.inet6.ip6.forwarding", NULL, 0, &i, sizeof(i));
384	    i = 1;
385	    sysctlbyname("net.inet6.ip6.accept_rtadv", NULL, 0, &i, sizeof(i));
386	    vsystem("ifconfig %s up", devp->name);
387	    len = sizeof(i);
388	    sysctlbyname("net.inet6.ip6.dad_count", &i, &len, NULL, 0);
389	    sleep(i + 1);
390	    Mkdir("/var/run");
391	    msgNotify("Scanning for RA servers...");
392	    if (0 == vsystem("rtsol %s", devp->name)) {
393		len = sizeof(i);
394		sysctlbyname("net.inet6.ip6.dad_count", &i, &len, NULL, 0);
395		sleep(i + 1);
396		rtsolGetInfo(devp);
397		use_rtsol = TRUE;
398	    } else
399		use_rtsol = FALSE;
400	}
401
402
403	/*
404	 * First try a DHCP scan if such behavior is desired.
405	 * If the variable was configured and is YES, do it.
406	 * If it was configured to anything else, treat it as NO.
407	 * Otherwise, ask the question interactively.
408	 */
409	if (!variable_cmp(VAR_TRY_DHCP, "YES") ||
410	    (variable_get(VAR_TRY_DHCP)==0 && !msgNoYes("Do you want to try DHCP configuration of the interface?"))) {
411	    Mkdir("/var/db");
412	    Mkdir("/var/run");
413	    Mkdir("/tmp");
414	    msgNotify("Scanning for DHCP servers...");
415	    /* XXX clear any existing lease */
416	    /* XXX limit protocol to N tries */
417	    if (0 == vsystem("dhclient %s", devp->name)) {
418		dhcpGetInfo(devp);
419		use_dhcp = TRUE;
420	    }
421	    else
422		use_dhcp = FALSE;
423	}
424
425	/* Restore old VAR_NONINTERACTIVE if needed. */
426	if (old_interactive != NULL) {
427	    variable_set2(VAR_NONINTERACTIVE, old_interactive, 0);
428	    free(old_interactive);
429	}
430
431	/* Special hack so it doesn't show up oddly in the tcpip setup menu */
432	if (!strcmp(gateway, "NO"))
433	    gateway[0] = '\0';
434
435	/* Get old IP address from variable space, if available */
436	if (!ipaddr[0]) {
437	    if ((cp = variable_get(VAR_IPADDR)) != NULL)
438		SAFE_STRCPY(ipaddr, cp);
439	    else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_IPADDR))) != NULL)
440		SAFE_STRCPY(ipaddr, cp);
441	}
442
443	/* Get old netmask from variable space, if available */
444	if (!netmask[0]) {
445	    if ((cp = variable_get(VAR_NETMASK)) != NULL)
446		SAFE_STRCPY(netmask, cp);
447	    else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_NETMASK))) != NULL)
448		SAFE_STRCPY(netmask, cp);
449	}
450
451	/* Get old extras string from variable space, if available */
452	if (!extras[0]) {
453	    if ((cp = variable_get(VAR_EXTRAS)) != NULL)
454		SAFE_STRCPY(extras, cp);
455	    else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_EXTRAS))) != NULL)
456		SAFE_STRCPY(extras, cp);
457	}
458    }
459
460    /* Look up values already recorded with the system, or blank the string variables ready to accept some new data */
461    if (!hostname[0]) {
462	tmp = variable_get(VAR_HOSTNAME);
463	if (tmp)
464	    SAFE_STRCPY(hostname, tmp);
465    }
466    if (!domainname[0]) {
467	tmp = variable_get(VAR_DOMAINNAME);
468	if (tmp)
469	    SAFE_STRCPY(domainname, tmp);
470    }
471    if (!gateway[0]) {
472	tmp = variable_get(VAR_GATEWAY);
473	if (tmp && strcmp(tmp, "NO"))
474	    SAFE_STRCPY(gateway, tmp);
475    }
476    if (!nameserver[0]) {
477	tmp = variable_get(VAR_NAMESERVER);
478	if (tmp)
479	    SAFE_STRCPY(nameserver, tmp);
480    }
481
482    /* If non-interactive, jump straight over the dialog crap and into config section */
483    if (variable_get(VAR_NONINTERACTIVE) &&
484	!variable_get(VAR_NETINTERACTIVE)) {
485	if (!hostname[0])
486	    msgConfirm("WARNING: hostname variable not set and is a non-optional\n"
487		       "parameter.  Please add this to your installation script\n"
488		       "or set the netInteractive variable (see sysinstall man page)");
489	else
490	    goto netconfig;
491    }
492
493    /* Now do all the screen I/O */
494    dialog_clear_norefresh();
495
496    /* Modify the help line for PLIP config */
497    if (!strncmp(devp->name, "lp", 2))
498	layout[LAYOUT_EXTRAS].help =
499         "For PLIP configuration, you must enter the peer's IP address here.";
500
501    /* We need a curses window */
502    tmp = " Network Configuration ";
503    if (ipv6addr[0])
504	tmp = string_concat(tmp, "(IPv6 ready) ");
505    if (!(ds_win = openLayoutDialog(TCP_HELPFILE, tmp,
506				    TCP_DIALOG_X, TCP_DIALOG_Y, TCP_DIALOG_WIDTH, TCP_DIALOG_HEIGHT))) {
507	beep();
508	msgConfirm("Cannot open TCP/IP dialog window!!");
509	restorescr(save);
510	return DITEM_FAILURE;
511    }
512
513    /* Draw interface configuration box */
514    draw_box(ds_win, TCP_DIALOG_Y + 9, TCP_DIALOG_X + 8, TCP_DIALOG_HEIGHT - 13, TCP_DIALOG_WIDTH - 17,
515	     dialog_attr, border_attr);
516    wattrset(ds_win, dialog_attr);
517    sprintf(title, " Configuration for Interface %s ", devp->name);
518    mvwaddstr(ds_win, TCP_DIALOG_Y + 9, TCP_DIALOG_X + 14, title);
519
520    /* Some more initialisation before we go into the main input loop */
521    obj = initLayoutDialog(ds_win, layout, TCP_DIALOG_X, TCP_DIALOG_Y, &max);
522
523reenter:
524    cancelbutton = okbutton = 0;
525    while (layoutDialogLoop(ds_win, layout, &obj, &n, max, &cancelbutton, &cancel)) {
526	/* Prevent this from being irritating if user really means NO */
527	if (filled < 3) {
528	    /* Insert a default value for the netmask, 0xffffff00 is
529	     * the most appropriate one (entire class C, or subnetted
530	     * class A/B network).
531	     */
532	    if (!netmask[0]) {
533		strcpy(netmask, "255.255.255.0");
534		RefreshStringObj(layout[LAYOUT_NETMASK].obj);
535		++filled;
536	    }
537	    if (!index(hostname, '.') && domainname[0]) {
538		strcat(hostname, ".");
539		strcat(hostname, domainname);
540		RefreshStringObj(layout[LAYOUT_HOSTNAME].obj);
541		++filled;
542	    }
543	    else if (((tmp = index(hostname, '.')) != NULL) && !domainname[0]) {
544		SAFE_STRCPY(domainname, tmp + 1);
545		RefreshStringObj(layout[LAYOUT_DOMAINNAME].obj);
546		++filled;
547	    }
548	}
549    }
550    if (!cancel && !verifySettings())
551	goto reenter;
552
553    /* Clear this crap off the screen */
554    delwin(ds_win);
555    dialog_clear_norefresh();
556    use_helpfile(NULL);
557
558    /* We actually need to inform the rest of sysinstall about this
559       data now if the user hasn't selected cancel.  Save the stuff
560       out to the environment via the variable_set() mechanism */
561
562netconfig:
563    if (!cancel) {
564	DevInfo *di;
565	char temp[512], ifn[255];
566#ifdef PCCARD_ARCH
567	char *pccard;
568#endif
569	int ipv4_enable = FALSE;
570
571	if (hostname[0]) {
572	    variable_set2(VAR_HOSTNAME, hostname, 1);
573	    sethostname(hostname, strlen(hostname));
574	}
575	if (domainname[0])
576	    variable_set2(VAR_DOMAINNAME, domainname, 0);
577	if (gateway[0])
578	    variable_set2(VAR_GATEWAY, gateway, use_dhcp ? 0 : 1);
579	if (nameserver[0])
580	    variable_set2(VAR_NAMESERVER, nameserver, 0);
581	if (ipaddr[0])
582	    variable_set2(VAR_IPADDR, ipaddr, 0);
583	if (ipv6addr[0])
584	    variable_set2(VAR_IPV6ADDR, ipv6addr, 0);
585
586	if (!devp->private)
587	    devp->private = (DevInfo *)safe_malloc(sizeof(DevInfo));
588	di = devp->private;
589	SAFE_STRCPY(di->ipaddr, ipaddr);
590	SAFE_STRCPY(di->netmask, netmask);
591	SAFE_STRCPY(di->extras, extras);
592	di->use_dhcp = use_dhcp;
593	di->use_rtsol = use_rtsol;
594
595	if (use_dhcp || ipaddr[0])
596	    ipv4_enable = TRUE;
597	if (ipv4_enable) {
598	    sprintf(ifn, "%s%s", VAR_IFCONFIG, devp->name);
599	    if (use_dhcp) {
600		if (strlen(extras) > 0)
601		    sprintf(temp, "DHCP %s", extras);
602		else
603		    sprintf(temp, "DHCP");
604	    } else
605		sprintf(temp, "inet %s %s netmask %s",
606			ipaddr, extras, netmask);
607	    variable_set2(ifn, temp, 1);
608	}
609#ifdef PCCARD_ARCH
610	pccard = variable_get("_pccard_install");
611	if (pccard && strcmp(pccard, "YES") == 0 && ipv4_enable) {
612	    variable_set2("pccard_ifconfig", temp, 1);
613	}
614#endif
615	if (use_rtsol)
616	    variable_set2(VAR_IPV6_ENABLE, "YES", 1);
617	if (!use_dhcp)
618	    configResolv(NULL);	/* XXX this will do it on the MFS copy XXX */
619	ret = DITEM_SUCCESS;
620    }
621    else
622	ret = DITEM_FAILURE;
623    restorescr(save);
624    return ret;
625}
626
627static Device *NetDev;
628
629static int
630netHook(dialogMenuItem *self)
631{
632    Device **devs;
633
634    devs = deviceFindDescr(self->prompt, self->title, DEVICE_TYPE_NETWORK);
635    if (devs) {
636	if (DITEM_STATUS(tcpOpenDialog(devs[0])) != DITEM_FAILURE)
637	    NetDev = devs[0];
638	else
639	    NetDev = NULL;
640    }
641    return devs ? DITEM_LEAVE_MENU : DITEM_FAILURE;
642}
643
644/* Get a network device */
645Device *
646tcpDeviceSelect(void)
647{
648    DMenu *menu;
649    Device **devs, *rval;
650    int cnt;
651
652    devs = deviceFind(variable_get(VAR_NETWORK_DEVICE), DEVICE_TYPE_NETWORK);
653    cnt = deviceCount(devs);
654    rval = NULL;
655
656    if (!cnt) {
657	msgConfirm("No network devices available!");
658	return NULL;
659    }
660    else if ((!RunningAsInit) && (variable_check("NETWORK_CONFIGURED=NO") != TRUE)) {
661	if (!msgYesNo("Running multi-user, assume that the network is already configured?"))
662	    return devs[0];
663    }
664    if (cnt == 1) {
665	if (DITEM_STATUS(tcpOpenDialog(devs[0]) == DITEM_SUCCESS))
666	    rval = devs[0];
667    }
668    else if (variable_get(VAR_NONINTERACTIVE) && variable_get(VAR_NETWORK_DEVICE)) {
669	devs = deviceFind(variable_get(VAR_NETWORK_DEVICE), DEVICE_TYPE_NETWORK);
670	cnt = deviceCount(devs);
671	if (cnt) {
672	    if (DITEM_STATUS(tcpOpenDialog(devs[0]) == DITEM_SUCCESS))
673		rval = devs[0];
674	}
675    }
676    else {
677	int status;
678
679	menu = deviceCreateMenu(&MenuNetworkDevice, DEVICE_TYPE_NETWORK, netHook, NULL);
680	if (!menu)
681	    msgFatal("Unable to create network device menu!  Argh!");
682	status = dmenuOpenSimple(menu, FALSE);
683	free(menu);
684	if (status)
685	    rval = NetDev;
686    }
687    return rval;
688}
689
690/* Do it from a menu that doesn't care about status */
691int
692tcpMenuSelect(dialogMenuItem *self)
693{
694    Device *tmp;
695    WINDOW *save;
696
697    variable_set("NETWORK_CONFIGURED=NO",0);
698    tmp = tcpDeviceSelect();
699    variable_unset("NETWORK_CONFIGURED");
700    save = savescr();
701    if (tmp && tmp->private && !((DevInfo *)tmp->private)->use_dhcp && !msgYesNo("Would you like to bring the %s interface up right now?", tmp->name))
702	if (!DEVICE_INIT(tmp))
703	    msgConfirm("Initialization of %s device failed.", tmp->name);
704    restorescr(save);
705    return DITEM_SUCCESS;
706}
707