2 * $FreeBSD: src/release/sysinstall/tcpip.c,v 1.103.2.22 2003/03/22 23:03:22 mbr Exp $
3 * $DragonFly: src/release/sysinstall/Attic/tcpip.c,v 1.2 2003/06/17 04:27:21 dillon Exp $
6 * Gary J Palmer. All rights reserved.
8 * Jordan K. Hubbard. All rights reserved.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer,
15 * verbatim and that no modifications are made prior to this
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
27 * OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
29 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 * All kinds of hacking also performed by jkh on this code. Don't
36 * blame Gary for every bogosity you see here.. :-)
41 #include "sysinstall.h"
42 #include <sys/param.h>
43 #include <sys/sysctl.h>
44 #include <sys/socket.h>
45 #include <netinet/in.h>
48 /* The help file for the TCP/IP setup screen */
49 #define TCP_HELPFILE "tcp"
51 /* These are nasty, but they make the layout structure a lot easier ... */
53 static char hostname[HOSTNAME_FIELD_LEN], domainname[HOSTNAME_FIELD_LEN],
54 gateway[IPADDR_FIELD_LEN], nameserver[INET6_ADDRSTRLEN];
55 static int okbutton, cancelbutton;
56 static char ipaddr[IPADDR_FIELD_LEN], netmask[IPADDR_FIELD_LEN], extras[EXTRAS_FIELD_LEN];
57 static char ipv6addr[INET6_ADDRSTRLEN];
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
65 static 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,
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,
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,
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,
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:",
97 "Any interface-specific options to ifconfig you would like to add",
98 extras, STRINGOBJ, NULL },
99 #define LAYOUT_OKBUTTON 7
101 "OK", "Select this if you are happy with these settings",
102 &okbutton, BUTTONOBJ, NULL },
103 #define LAYOUT_CANCELBUTTON 8
105 "CANCEL", "Select this if you wish to cancel this screen",
106 &cancelbutton, BUTTONOBJ, NULL },
110 #define _validByte(b) ((b) >= 0 && (b) <= 255)
117 msgConfirm("%s", msg);
120 /* Verify IP address integrity */
122 verifyIP(char *ip, unsigned long *mask, unsigned long *out)
127 unsigned long parsedip;
128 unsigned long max_addr = (255 << 24) | (255 << 16) | (255 << 8) | 255;
132 a = strtol(ip, &endptr, 10);
133 if (*endptr++ != '.')
135 b = strtol(endptr, &endptr, 10);
136 if (*endptr++ != '.')
138 c = strtol(endptr, &endptr, 10);
139 if (*endptr++ != '.')
141 d = strtol(endptr, &endptr, 10);
144 if (!_validByte(a) || !_validByte(b) || !_validByte(c) || !_validByte(d))
146 parsedip = (a << 24) | (b << 16) | (c << 8) | d;
150 * The ip address must not be network or broadcast address.
152 if (mask && ((parsedip == (parsedip & *mask)) ||
153 (parsedip == ((parsedip & *mask) + max_addr - *mask))))
161 struct addrinfo hints, *res;
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) {
174 /* Verify IPv4 netmask as being well-formed as
175 a 0x or AAA.BBB.CCC.DDD mask */
177 verifyNetmask(const char *netmask, unsigned long *out)
183 if (netmask[0] == '0' && (netmask[1] == 'x' || netmask[1] == 'X')) {
184 /* Parse out hex mask */
185 mask = strtoul(netmask, &endptr, 0);
189 /* Parse out quad decimal mask */
190 mask = strtoul(netmask, &endptr, 10);
191 if (!_validByte(mask) || *endptr++ != '.')
193 tmp = strtoul(endptr, &endptr, 10);
194 if (!_validByte(tmp) || *endptr++ != '.')
196 mask = (mask << 8) + tmp;
197 tmp = strtoul(endptr, &endptr, 10);
198 if (!_validByte(tmp) || *endptr++ != '.')
200 mask = (mask << 8) + tmp;
201 tmp = strtoul(endptr, &endptr, 10);
202 if (!_validByte(tmp) || *endptr++ != '\0')
204 mask = (mask << 8) + tmp;
206 /* Verify that we have a continous netmask */
207 if ((((-mask & mask) - 1) | mask) != 0xffffffff)
215 verifyGW(char *gw, unsigned long *ip, unsigned long *mask)
217 unsigned long parsedgw;
219 if (!verifyIP(gw, mask, &parsedgw))
221 /* Gateway needs to be within the set of IPs reachable through the
223 if (ip && mask && ((parsedgw & *mask) != (*ip & *mask)))
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 */
233 unsigned long parsedip;
234 unsigned long parsednetmask;
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");
255 dhcpGetInfo(Device *devp)
257 /* If it fails, do it the old-fashioned way */
258 if (dhcpParseLeases("/var/db/dhclient.leases", hostname, domainname,
259 nameserver, ipaddr, gateway, netmask) == -1) {
261 char *cp, cmd[256], data[2048];
264 /* Bah, now we have to kludge getting the information from ifconfig */
265 snprintf(cmd, sizeof cmd, "ifconfig %s", devp->name);
266 ifp = popen(cmd, "r");
268 j = fread(data, 1, sizeof(data), ifp);
270 if (j < 0) /* paranoia */
274 msgDebug("DHCP configured interface returns %s\n", data);
275 /* XXX This is gross as it assumes a certain ordering to
276 ifconfig's output! XXX */
277 if ((cp = strstr(data, "inet ")) != NULL) {
279 cp += 5; /* move over keyword */
281 ipaddr[i++] = *(cp++);
283 if (!strncmp(++cp, "netmask", 7)) {
287 netmask[i++] = *(cp++);
294 /* If we didn't get a name server value, hunt for it in resolv.conf */
295 if (!nameserver[0] && file_readable("/etc/resolv.conf"))
296 configEnvironmentResolv("/etc/resolv.conf");
298 variable_set2(VAR_HOSTNAME, hostname, 0);
302 rtsolGetInfo(Device *devp)
305 char *cp, cmd[256], data[2048];
308 snprintf(cmd, sizeof cmd, "ifconfig %s", devp->name);
309 if ((ifp = popen(cmd, "r")) == NULL)
311 while (fgets(data, sizeof(data), ifp) != NULL) {
313 msgDebug("RTSOL configured interface returns %s", data);
314 if ((cp = strstr(data, "inet6 ")) != NULL) {
315 cp += 6; /* move over keyword */
316 if (strncmp(cp, "fe80:", 5)) {
319 ipv6addr[i++] = *(cp++);
327 /* This is it - how to get TCP setup values */
329 tcpOpenDialog(Device *devp)
331 WINDOW *ds_win, *save = NULL;
332 ComposeObj *obj = NULL;
333 int n = 0, filled = 0, cancel = FALSE;
334 int max, ret = DITEM_SUCCESS;
335 int use_dhcp = FALSE;
336 int use_rtsol = FALSE;
341 /* Initialise vars from previous device values */
343 DevInfo *di = (DevInfo *)devp->private;
345 SAFE_STRCPY(ipaddr, di->ipaddr);
346 SAFE_STRCPY(netmask, di->netmask);
347 SAFE_STRCPY(extras, di->extras);
348 use_dhcp = di->use_dhcp;
349 use_rtsol = di->use_rtsol;
351 else { /* See if there are any defaults */
353 char *old_interactive = NULL;
356 * This is a hack so that the dialogs below are interactive in a
357 * script if we have requested interactive behavior.
359 if (variable_get(VAR_NONINTERACTIVE) &&
360 variable_get(VAR_NETINTERACTIVE)) {
361 old_interactive = strdup(VAR_NONINTERACTIVE);
362 variable_unset(VAR_NONINTERACTIVE);
367 * Try a RTSOL scan if such behavior is desired.
368 * If the variable was configured and is YES, do it.
369 * If it was configured to anything else, treat it as NO.
370 * Otherwise, ask the question interactively.
372 if (!variable_cmp(VAR_TRY_RTSOL, "YES") ||
373 (variable_get(VAR_TRY_RTSOL)==0 && !msgNoYes("Do you want to try IPv6 configuration of the interface?"))) {
378 sysctlbyname("net.inet6.ip6.forwarding", NULL, 0, &i, sizeof(i));
380 sysctlbyname("net.inet6.ip6.accept_rtadv", NULL, 0, &i, sizeof(i));
381 vsystem("ifconfig %s up", devp->name);
383 sysctlbyname("net.inet6.ip6.dad_count", &i, &len, NULL, 0);
386 msgNotify("Scanning for RA servers...");
387 if (0 == vsystem("rtsol %s", devp->name)) {
389 sysctlbyname("net.inet6.ip6.dad_count", &i, &len, NULL, 0);
399 * First try a DHCP scan if such behavior is desired.
400 * If the variable was configured and is YES, do it.
401 * If it was configured to anything else, treat it as NO.
402 * Otherwise, ask the question interactively.
404 if (!variable_cmp(VAR_TRY_DHCP, "YES") ||
405 (variable_get(VAR_TRY_DHCP)==0 && !msgNoYes("Do you want to try DHCP configuration of the interface?"))) {
409 vsystem("dhclient -r %s", devp->name);
410 msgNotify("Scanning for DHCP servers...");
411 if (0 == vsystem("dhclient -1 %s", devp->name)) {
419 /* Restore old VAR_NONINTERACTIVE if needed. */
420 if (old_interactive != NULL) {
421 variable_set2(VAR_NONINTERACTIVE, old_interactive, 0);
422 free(old_interactive);
425 /* Special hack so it doesn't show up oddly in the tcpip setup menu */
426 if (!strcmp(gateway, "NO"))
429 /* Get old IP address from variable space, if available */
431 if ((cp = variable_get(VAR_IPADDR)) != NULL)
432 SAFE_STRCPY(ipaddr, cp);
433 else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_IPADDR))) != NULL)
434 SAFE_STRCPY(ipaddr, cp);
437 /* Get old netmask from variable space, if available */
439 if ((cp = variable_get(VAR_NETMASK)) != NULL)
440 SAFE_STRCPY(netmask, cp);
441 else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_NETMASK))) != NULL)
442 SAFE_STRCPY(netmask, cp);
445 /* Get old extras string from variable space, if available */
447 if ((cp = variable_get(VAR_EXTRAS)) != NULL)
448 SAFE_STRCPY(extras, cp);
449 else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_EXTRAS))) != NULL)
450 SAFE_STRCPY(extras, cp);
454 /* Look up values already recorded with the system, or blank the string variables ready to accept some new data */
456 tmp = variable_get(VAR_HOSTNAME);
458 SAFE_STRCPY(hostname, tmp);
460 if (!domainname[0]) {
461 tmp = variable_get(VAR_DOMAINNAME);
463 SAFE_STRCPY(domainname, tmp);
466 tmp = variable_get(VAR_GATEWAY);
467 if (tmp && strcmp(tmp, "NO"))
468 SAFE_STRCPY(gateway, tmp);
470 if (!nameserver[0]) {
471 tmp = variable_get(VAR_NAMESERVER);
473 SAFE_STRCPY(nameserver, tmp);
476 /* If non-interactive, jump straight over the dialog crap and into config section */
477 if (variable_get(VAR_NONINTERACTIVE) &&
478 !variable_get(VAR_NETINTERACTIVE)) {
480 msgConfirm("WARNING: hostname variable not set and is a non-optional\n"
481 "parameter. Please add this to your installation script\n"
482 "or set the netInteractive variable (see sysinstall man page)");
487 /* Now do all the screen I/O */
488 dialog_clear_norefresh();
490 /* Modify the help line for PLIP config */
491 if (!strncmp(devp->name, "lp", 2))
492 layout[LAYOUT_EXTRAS].help =
493 "For PLIP configuration, you must enter the peer's IP address here.";
495 /* We need a curses window */
496 tmp = " Network Configuration ";
498 tmp = string_concat(tmp, "(IPv6 ready) ");
499 if (!(ds_win = openLayoutDialog(TCP_HELPFILE, tmp,
500 TCP_DIALOG_X, TCP_DIALOG_Y, TCP_DIALOG_WIDTH, TCP_DIALOG_HEIGHT))) {
502 msgConfirm("Cannot open TCP/IP dialog window!!");
504 return DITEM_FAILURE;
507 /* Draw interface configuration box */
508 draw_box(ds_win, TCP_DIALOG_Y + 9, TCP_DIALOG_X + 8, TCP_DIALOG_HEIGHT - 13, TCP_DIALOG_WIDTH - 17,
509 dialog_attr, border_attr);
510 wattrset(ds_win, dialog_attr);
511 sprintf(title, " Configuration for Interface %s ", devp->name);
512 mvwaddstr(ds_win, TCP_DIALOG_Y + 9, TCP_DIALOG_X + 14, title);
514 /* Some more initialisation before we go into the main input loop */
515 obj = initLayoutDialog(ds_win, layout, TCP_DIALOG_X, TCP_DIALOG_Y, &max);
518 cancelbutton = okbutton = 0;
519 while (layoutDialogLoop(ds_win, layout, &obj, &n, max, &cancelbutton, &cancel)) {
520 /* Prevent this from being irritating if user really means NO */
522 /* Insert a default value for the netmask, 0xffffff00 is
523 * the most appropriate one (entire class C, or subnetted
524 * class A/B network).
527 strcpy(netmask, "255.255.255.0");
528 RefreshStringObj(layout[LAYOUT_NETMASK].obj);
531 if (!index(hostname, '.') && domainname[0]) {
532 strcat(hostname, ".");
533 strcat(hostname, domainname);
534 RefreshStringObj(layout[LAYOUT_HOSTNAME].obj);
537 else if (((tmp = index(hostname, '.')) != NULL) && !domainname[0]) {
538 SAFE_STRCPY(domainname, tmp + 1);
539 RefreshStringObj(layout[LAYOUT_DOMAINNAME].obj);
544 if (!cancel && !verifySettings())
547 /* Clear this crap off the screen */
549 dialog_clear_norefresh();
552 /* We actually need to inform the rest of sysinstall about this
553 data now if the user hasn't selected cancel. Save the stuff
554 out to the environment via the variable_set() mechanism */
559 char temp[512], ifn[255];
561 int ipv4_enable = FALSE;
564 variable_set2(VAR_HOSTNAME, hostname, 1);
565 sethostname(hostname, strlen(hostname));
568 variable_set2(VAR_DOMAINNAME, domainname, 0);
570 variable_set2(VAR_GATEWAY, gateway, use_dhcp ? 0 : 1);
572 variable_set2(VAR_NAMESERVER, nameserver, 0);
574 variable_set2(VAR_IPADDR, ipaddr, 0);
576 variable_set2(VAR_IPV6ADDR, ipv6addr, 0);
579 devp->private = (DevInfo *)safe_malloc(sizeof(DevInfo));
581 SAFE_STRCPY(di->ipaddr, ipaddr);
582 SAFE_STRCPY(di->netmask, netmask);
583 SAFE_STRCPY(di->extras, extras);
584 di->use_dhcp = use_dhcp;
585 di->use_rtsol = use_rtsol;
587 if (use_dhcp || ipaddr[0])
590 sprintf(ifn, "%s%s", VAR_IFCONFIG, devp->name);
592 sprintf(temp, "DHCP");
594 sprintf(temp, "inet %s %s netmask %s",
595 ipaddr, extras, netmask);
596 variable_set2(ifn, temp, 1);
599 pccard = variable_get("_pccard_install");
600 if (pccard && strcmp(pccard, "YES") == 0 && ipv4_enable) {
601 variable_set2("pccard_ifconfig", temp, 1);
605 variable_set2(VAR_IPV6_ENABLE, "YES", 1);
607 configResolv(NULL); /* XXX this will do it on the MFS copy XXX */
616 static Device *NetDev;
619 netHook(dialogMenuItem *self)
623 devs = deviceFindDescr(self->prompt, self->title, DEVICE_TYPE_NETWORK);
625 if (DITEM_STATUS(tcpOpenDialog(devs[0])) != DITEM_FAILURE)
630 return devs ? DITEM_LEAVE_MENU : DITEM_FAILURE;
633 /* Get a network device */
635 tcpDeviceSelect(void)
638 Device **devs, *rval;
641 devs = deviceFind(variable_get(VAR_NETWORK_DEVICE), DEVICE_TYPE_NETWORK);
642 cnt = deviceCount(devs);
646 msgConfirm("No network devices available!");
649 else if ((!RunningAsInit) && (variable_check("NETWORK_CONFIGURED=NO") != TRUE)) {
650 if (!msgYesNo("Running multi-user, assume that the network is already configured?"))
654 if (DITEM_STATUS(tcpOpenDialog(devs[0]) == DITEM_SUCCESS))
657 else if (variable_get(VAR_NONINTERACTIVE) && variable_get(VAR_NETWORK_DEVICE)) {
658 devs = deviceFind(variable_get(VAR_NETWORK_DEVICE), DEVICE_TYPE_NETWORK);
659 cnt = deviceCount(devs);
661 if (DITEM_STATUS(tcpOpenDialog(devs[0]) == DITEM_SUCCESS))
668 menu = deviceCreateMenu(&MenuNetworkDevice, DEVICE_TYPE_NETWORK, netHook, NULL);
670 msgFatal("Unable to create network device menu! Argh!");
671 status = dmenuOpenSimple(menu, FALSE);
679 /* Do it from a menu that doesn't care about status */
681 tcpMenuSelect(dialogMenuItem *self)
686 variable_set("NETWORK_CONFIGURED=NO",0);
687 tmp = tcpDeviceSelect();
688 variable_unset("NETWORK_CONFIGURED");
690 if (tmp && tmp->private && !((DevInfo *)tmp->private)->use_dhcp && !msgYesNo("Would you like to bring the %s interface up right now?", tmp->name))
691 if (!DEVICE_INIT(tmp))
692 msgConfirm("Initialization of %s device failed.", tmp->name);
694 return DITEM_SUCCESS;