5 * Gary J Palmer. All rights reserved.
7 * Jordan K. Hubbard. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
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
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.
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.
34 * All kinds of hacking also performed by jkh on this code. Don't
35 * blame Gary for every bogosity you see here.. :-)
40 #include "sysinstall.h"
41 #include <sys/param.h>
42 #include <sys/sysctl.h>
43 #include <sys/socket.h>
44 #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 (usually empty):",
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)
125 char *endptr, *endptr_prev;
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 - ip == 0 || *endptr++ != '.')
135 endptr_prev = endptr;
136 b = strtol(endptr, &endptr, 10);
137 if (endptr - endptr_prev == 0 || *endptr++ != '.')
139 endptr_prev = endptr;
140 c = strtol(endptr, &endptr, 10);
141 if (endptr - endptr_prev == 0 || *endptr++ != '.')
143 endptr_prev = endptr;
144 d = strtol(endptr, &endptr, 10);
145 if (*endptr != '\0' || endptr - endptr_prev == 0)
147 if (!_validByte(a) || !_validByte(b) || !_validByte(c) || !_validByte(d))
149 parsedip = (a << 24) | (b << 16) | (c << 8) | d;
153 * The ip address must not be network or broadcast address.
155 if (mask && ((parsedip == (parsedip & *mask)) ||
156 (parsedip == ((parsedip & *mask) + max_addr - *mask))))
164 struct addrinfo hints, *res;
166 memset(&hints, 0, sizeof(hints));
167 hints.ai_family = AF_INET6;
168 hints.ai_socktype = SOCK_STREAM;
169 hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
170 if (getaddrinfo(ip, NULL, &hints, &res) == 0) {
177 /* Verify IPv4 netmask as being well-formed as
178 a 0x or AAA.BBB.CCC.DDD mask */
180 verifyNetmask(const char *netmask, unsigned long *out)
186 if (netmask[0] == '0' && (netmask[1] == 'x' || netmask[1] == 'X')) {
187 /* Parse out hex mask */
188 mask = strtoul(netmask, &endptr, 0);
192 /* Parse out quad decimal mask */
193 tmp = strtoul(netmask, &endptr, 10);
194 if (!_validByte(tmp) || *endptr++ != '.')
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++ != '.')
204 mask = (mask << 8) + tmp;
205 tmp = strtoul(endptr, &endptr, 10);
206 if (!_validByte(tmp) || *endptr++ != '\0')
208 mask = (mask << 8) + tmp;
210 /* Verify that we have a continous netmask */
211 if ((((-mask & mask) - 1) | mask) != 0xffffffff)
219 verifyGW(char *gw, unsigned long *ip, unsigned long *mask)
221 unsigned long parsedgw;
223 if (!verifyIP(gw, mask, &parsedgw))
225 /* Gateway needs to be within the set of IPs reachable through the
227 if (ip && mask && ((parsedgw & *mask) != (*ip & *mask)))
232 /* Check for the settings on the screen - the per-interface stuff is
233 moved to the main handling code now to do it on the fly - sigh */
237 unsigned long parsedip;
238 unsigned long parsednetmask;
241 feepout("Must specify a host name of some sort!");
242 else if (netmask[0] && !verifyNetmask(netmask, &parsednetmask))
243 feepout("Invalid netmask value");
244 else if (nameserver[0] && !verifyIP(nameserver, NULL, NULL) &&
245 !verifyIP6(nameserver))
246 feepout("Invalid name server IP address specified");
247 else if (ipaddr[0] && !verifyIP(ipaddr, &parsednetmask, &parsedip))
248 feepout("Invalid IPv4 address");
249 else if (gateway[0] && strcmp(gateway, "NO") &&
250 !verifyGW(gateway, ipaddr[0] ? &parsedip : NULL,
251 netmask[0] ? &parsednetmask : NULL))
252 feepout("Invalid gateway IPv4 address specified");
259 dhcpGetInfo(Device *devp)
261 char leasefile[PATH_MAX];
263 snprintf(leasefile, sizeof(leasefile), "%sdhclient.leases.%s",
264 _PATH_VARDB, devp->name);
265 /* If it fails, do it the old-fashioned way */
266 if (dhcpParseLeases(leasefile, hostname, domainname,
267 nameserver, ipaddr, gateway, netmask) == -1) {
269 char *cp, cmd[256], data[2048];
272 /* Bah, now we have to kludge getting the information from ifconfig */
273 snprintf(cmd, sizeof cmd, "ifconfig %s", devp->name);
274 ifp = popen(cmd, "r");
276 j = fread(data, 1, sizeof(data), ifp);
278 if (j < 0) /* paranoia */
282 msgDebug("DHCP configured interface returns %s\n", data);
283 /* XXX This is gross as it assumes a certain ordering to
284 ifconfig's output! XXX */
285 if ((cp = strstr(data, "inet ")) != NULL) {
287 cp += 5; /* move over keyword */
289 ipaddr[i++] = *(cp++);
291 if (!strncmp(++cp, "netmask", 7)) {
295 netmask[i++] = *(cp++);
302 /* If we didn't get a name server value, hunt for it in resolv.conf */
303 if (!nameserver[0] && file_readable("/etc/resolv.conf"))
304 configEnvironmentResolv("/etc/resolv.conf");
306 variable_set2(VAR_HOSTNAME, hostname, 0);
310 rtsolGetInfo(Device *devp)
313 char *cp, cmd[256], data[2048];
316 snprintf(cmd, sizeof cmd, "ifconfig %s", devp->name);
317 if ((ifp = popen(cmd, "r")) == NULL)
319 while (fgets(data, sizeof(data), ifp) != NULL) {
321 msgDebug("RTSOL configured interface returns %s\n", data);
322 if ((cp = strstr(data, "inet6 ")) != NULL) {
323 cp += 6; /* move over keyword */
324 if (strncmp(cp, "fe80:", 5)) {
327 ipv6addr[i++] = *(cp++);
335 /* This is it - how to get TCP setup values */
337 tcpOpenDialog(Device *devp)
339 WINDOW *ds_win, *save = NULL;
340 ComposeObj *obj = NULL;
341 int n = 0, filled = 0, cancel = FALSE;
342 int max, ret = DITEM_SUCCESS;
343 int use_dhcp = FALSE;
344 int use_rtsol = FALSE;
349 /* Initialise vars from previous device values */
351 DevInfo *di = (DevInfo *)devp->private;
353 SAFE_STRCPY(ipaddr, di->ipaddr);
354 SAFE_STRCPY(netmask, di->netmask);
355 SAFE_STRCPY(extras, di->extras);
356 use_dhcp = di->use_dhcp;
357 use_rtsol = di->use_rtsol;
359 else { /* See if there are any defaults */
361 char *old_interactive = NULL;
364 * This is a hack so that the dialogs below are interactive in a
365 * script if we have requested interactive behavior.
367 if (variable_get(VAR_NONINTERACTIVE) &&
368 variable_get(VAR_NETINTERACTIVE)) {
369 old_interactive = strdup(VAR_NONINTERACTIVE);
370 variable_unset(VAR_NONINTERACTIVE);
375 * Try a RTSOL scan if such behavior is desired.
376 * If the variable was configured and is YES, do it.
377 * If it was configured to anything else, treat it as NO.
378 * Otherwise, ask the question interactively.
380 if (!variable_get(VAR_NO_INET6) &&
381 (!variable_cmp(VAR_TRY_RTSOL, "YES") ||
382 (variable_get(VAR_TRY_RTSOL)==0 && !msgNoYes("Do you want to try IPv6 configuration of the interface?")))) {
387 sysctlbyname("net.inet6.ip6.forwarding", NULL, 0, &i, sizeof(i));
389 sysctlbyname("net.inet6.ip6.accept_rtadv", NULL, 0, &i, sizeof(i));
390 vsystem("ifconfig %s up", devp->name);
392 sysctlbyname("net.inet6.ip6.dad_count", &i, &len, NULL, 0);
395 msgNotify("Scanning for RA servers...");
396 if (0 == vsystem("rtsol %s", devp->name)) {
398 sysctlbyname("net.inet6.ip6.dad_count", &i, &len, NULL, 0);
408 * First try a DHCP scan if such behavior is desired.
409 * If the variable was configured and is YES, do it.
410 * If it was configured to anything else, treat it as NO.
411 * Otherwise, ask the question interactively.
413 if (!variable_cmp(VAR_TRY_DHCP, "YES") ||
414 (variable_get(VAR_TRY_DHCP)==0 && !msgNoYes("Do you want to try DHCP configuration of the interface?"))) {
418 msgNotify("Scanning for DHCP servers...");
419 /* XXX clear any existing lease */
420 /* XXX limit protocol to N tries */
421 if (0 == vsystem("dhclient %s", devp->name)) {
429 /* Restore old VAR_NONINTERACTIVE if needed. */
430 if (old_interactive != NULL) {
431 variable_set2(VAR_NONINTERACTIVE, old_interactive, 0);
432 free(old_interactive);
435 /* Special hack so it doesn't show up oddly in the tcpip setup menu */
436 if (!strcmp(gateway, "NO"))
439 /* Get old IP address from variable space, if available */
441 if ((cp = variable_get(VAR_IPADDR)) != NULL)
442 SAFE_STRCPY(ipaddr, cp);
443 else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_IPADDR))) != NULL)
444 SAFE_STRCPY(ipaddr, cp);
447 /* Get old netmask from variable space, if available */
449 if ((cp = variable_get(VAR_NETMASK)) != NULL)
450 SAFE_STRCPY(netmask, cp);
451 else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_NETMASK))) != NULL)
452 SAFE_STRCPY(netmask, cp);
455 /* Get old extras string from variable space, if available */
457 if ((cp = variable_get(VAR_EXTRAS)) != NULL)
458 SAFE_STRCPY(extras, cp);
459 else if ((cp = variable_get(string_concat3(devp->name, "_", VAR_EXTRAS))) != NULL)
460 SAFE_STRCPY(extras, cp);
464 /* Look up values already recorded with the system, or blank the string variables ready to accept some new data */
466 tmp = variable_get(VAR_HOSTNAME);
468 SAFE_STRCPY(hostname, tmp);
470 if (!domainname[0]) {
471 tmp = variable_get(VAR_DOMAINNAME);
473 SAFE_STRCPY(domainname, tmp);
476 tmp = variable_get(VAR_GATEWAY);
477 if (tmp && strcmp(tmp, "NO"))
478 SAFE_STRCPY(gateway, tmp);
480 if (!nameserver[0]) {
481 tmp = variable_get(VAR_NAMESERVER);
483 SAFE_STRCPY(nameserver, tmp);
486 /* If non-interactive, jump straight over the dialog crap and into config section */
487 if (variable_get(VAR_NONINTERACTIVE) &&
488 !variable_get(VAR_NETINTERACTIVE)) {
490 msgConfirm("WARNING: hostname variable not set and is a non-optional\n"
491 "parameter. Please add this to your installation script\n"
492 "or set the netInteractive variable (see sysinstall man page)");
497 /* Now do all the screen I/O */
498 dialog_clear_norefresh();
500 /* Modify the help line for PLIP config */
501 if (!strncmp(devp->name, "plip", 4))
502 layout[LAYOUT_EXTRAS].help =
503 "For PLIP configuration, you must enter the peer's IP address here.";
505 /* We need a curses window */
506 tmp = " Network Configuration ";
508 tmp = string_concat(tmp, "(IPv6 ready) ");
509 if (!(ds_win = openLayoutDialog(TCP_HELPFILE, tmp,
510 TCP_DIALOG_X, TCP_DIALOG_Y, TCP_DIALOG_WIDTH, TCP_DIALOG_HEIGHT))) {
512 msgConfirm("Cannot open TCP/IP dialog window!!");
514 return DITEM_FAILURE;
517 /* Draw interface configuration box */
518 draw_box(ds_win, TCP_DIALOG_Y + 9, TCP_DIALOG_X + 8, TCP_DIALOG_HEIGHT - 13, TCP_DIALOG_WIDTH - 17,
519 dialog_attr, border_attr);
520 wattrset(ds_win, dialog_attr);
521 sprintf(title, " Configuration for Interface %s ", devp->name);
522 mvwaddstr(ds_win, TCP_DIALOG_Y + 9, TCP_DIALOG_X + 14, title);
524 /* Some more initialisation before we go into the main input loop */
525 obj = initLayoutDialog(ds_win, layout, TCP_DIALOG_X, TCP_DIALOG_Y, &max);
528 cancelbutton = okbutton = 0;
529 while (layoutDialogLoop(ds_win, layout, &obj, &n, max, &cancelbutton, &cancel)) {
530 /* Prevent this from being irritating if user really means NO */
532 /* Insert a default value for the netmask, 0xffffff00 is
533 * the most appropriate one (entire class C, or subnetted
534 * class A/B network).
537 strcpy(netmask, "255.255.255.0");
538 RefreshStringObj(layout[LAYOUT_NETMASK].obj);
541 if (!index(hostname, '.') && domainname[0]) {
542 strcat(hostname, ".");
543 strcat(hostname, domainname);
544 RefreshStringObj(layout[LAYOUT_HOSTNAME].obj);
547 else if (((tmp = index(hostname, '.')) != NULL) && !domainname[0]) {
548 SAFE_STRCPY(domainname, tmp + 1);
549 RefreshStringObj(layout[LAYOUT_DOMAINNAME].obj);
554 if (!cancel && !verifySettings())
557 /* Clear this crap off the screen */
559 dialog_clear_norefresh();
562 /* We actually need to inform the rest of sysinstall about this
563 data now if the user hasn't selected cancel. Save the stuff
564 out to the environment via the variable_set() mechanism */
569 char temp[512], ifn[255];
570 int ipv4_enable = FALSE;
573 variable_set2(VAR_HOSTNAME, hostname, 1);
574 sethostname(hostname, strlen(hostname));
577 variable_set2(VAR_DOMAINNAME, domainname, 0);
579 variable_set2(VAR_GATEWAY, gateway, use_dhcp ? 0 : 1);
581 variable_set2(VAR_NAMESERVER, nameserver, 0);
583 variable_set2(VAR_IPADDR, ipaddr, 0);
585 variable_set2(VAR_IPV6ADDR, ipv6addr, 0);
588 devp->private = (DevInfo *)safe_malloc(sizeof(DevInfo));
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;
596 if (use_dhcp || ipaddr[0])
599 sprintf(ifn, "%s%s", VAR_IFCONFIG, devp->name);
601 if (strlen(extras) > 0)
602 sprintf(temp, "DHCP %s", extras);
604 sprintf(temp, "DHCP");
606 sprintf(temp, "inet %s %s netmask %s",
607 ipaddr, extras, netmask);
608 variable_set2(ifn, temp, 1);
611 variable_set2(VAR_IPV6_ENABLE, "YES", 1);
613 configResolv(NULL); /* XXX this will do it on the MFS copy XXX */
622 static Device *NetDev;
625 netHook(dialogMenuItem *self)
629 devs = deviceFindDescr(self->prompt, self->title, DEVICE_TYPE_NETWORK);
631 if (DITEM_STATUS(tcpOpenDialog(devs[0])) != DITEM_FAILURE)
636 return devs ? DITEM_LEAVE_MENU : DITEM_FAILURE;
639 /* Get a network device */
641 tcpDeviceSelect(void)
644 Device **devs, *rval;
645 char *dev, *network_dev;
650 if (variable_get(VAR_NONINTERACTIVE) && variable_get(VAR_NETWORK_DEVICE)) {
651 network_dev = variable_get(VAR_NETWORK_DEVICE);
653 while ((dev = strsep(&network_dev, ",")) != NULL) {
654 devs = deviceFind(dev, DEVICE_TYPE_NETWORK);
655 cnt = deviceCount(devs);
657 if (DITEM_STATUS(tcpOpenDialog(devs[0]) == DITEM_SUCCESS))
663 devs = deviceFind(variable_get(VAR_NETWORK_DEVICE), DEVICE_TYPE_NETWORK);
664 cnt = deviceCount(devs);
667 msgConfirm("No network devices available!");
670 else if ((!RunningAsInit) && (variable_check("NETWORK_CONFIGURED=NO") != TRUE)) {
671 if (!msgYesNo("Running multi-user, assume that the network is already configured?"))
675 if (DITEM_STATUS(tcpOpenDialog(devs[0]) == DITEM_SUCCESS))
681 menu = deviceCreateMenu(&MenuNetworkDevice, DEVICE_TYPE_NETWORK, netHook, NULL);
683 msgFatal("Unable to create network device menu! Argh!");
684 status = dmenuOpenSimple(menu, FALSE);
692 /* Do it from a menu that doesn't care about status */
694 tcpMenuSelect(dialogMenuItem *self)
699 variable_set("NETWORK_CONFIGURED=NO",0);
700 tmp = tcpDeviceSelect();
701 variable_unset("NETWORK_CONFIGURED");
703 if (tmp && tmp->private && !((DevInfo *)tmp->private)->use_dhcp && !msgYesNo("Would you like to bring the %s interface up right now?", tmp->name))
704 if (!DEVICE_INIT(tmp))
705 msgConfirm("Initialization of %s device failed.", tmp->name);
707 return DITEM_SUCCESS;