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NetBSD/distrib/utils/sysinst/net.c
garbled 865c31ac7b This change includes the following: 
Scripting and logging functionality for sysinst.
Child programs are run in a "display window" so you can actually see what
	they did before the screen flashes back and you loose it all.
Lots of curses fixups.  Removed nasty endwins that mangled the tty upon
	rentry.
Change the yes/no box to accept Y or N, and not require cursor motion to
	decide one or the other.
Perform curses redraws when doing things that could cause the kernel to
	spew printfs onto your screen.
1999-01-21 08:02:17 +00:00

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/* $NetBSD: net.c,v 1.36 1999/01/21 08:02:18 garbled Exp $ */
/*
* Copyright 1997 Piermont Information Systems Inc.
* All rights reserved.
*
* Written by Philip A. Nelson for Piermont Information Systems Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software develooped for the NetBSD Project by
* Piermont Information Systems Inc.
* 4. The name of Piermont Information Systems Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/* net.c -- routines to fetch files off the network. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curses.h>
#include <time.h>
#include <unistd.h>
#include <sys/param.h>
#include "defs.h"
#include "md.h"
#include "msg_defs.h"
#include "menu_defs.h"
#include "txtwalk.h"
int network_up = 0;
/* Get the list of network interfaces. */
static void get_ifconfig_info __P((void));
static void get_ifinterface_info __P((void));
/* external */
const char* target_prefix __P((void));
static void
get_ifconfig_info()
{
char *textbuf;
int textsize;
char *t;
/* Get ifconfig information */
textsize = collect(T_OUTPUT, &textbuf, "/sbin/ifconfig -l 2>/dev/null");
if (textsize < 0) {
if (logging)
(void)fprintf(log, "Aborting: Could not run ifconfig.\n");
(void)fprintf(stderr, "Could not run ifconfig.");
exit(1);
}
(void)strtok(textbuf,"\n");
strncpy(net_devices, textbuf, textsize<STRSIZE ? textsize : STRSIZE);
net_devices[STRSIZE] = 0;
free(textbuf);
/* Remove lo0 and anything after ... */
t = strstr(net_devices, "lo0");
if (t != NULL)
*t = 0;
}
/* Fill in defaults network values for the selected interface */
static void
get_ifinterface_info()
{
char *textbuf;
int textsize;
char *t;
char hostname[MAXHOSTNAMELEN + 1];
/* First look to see if the selected interface is already configured. */
textsize = collect(T_OUTPUT, &textbuf, "/sbin/ifconfig %s 2>/dev/null",
net_dev);
if (textsize >= 0) {
(void)strtok(textbuf, " \t\n"); /* ignore interface name */
while ((t = strtok(NULL, " \t\n")) != NULL) {
if (strcmp(t, "inet") == 0) {
t = strtok(NULL, " \t\n");
if (strcmp(t, "0.0.0.0") != 0)
strcpy(net_ip, t);
} else if (strcmp(t, "netmask") == 0) {
t = strtok(NULL, " \t\n");
if (strcmp(t, "0x0") != 0)
strcpy(net_mask, t);
} else if (strcmp(t, "media:") == 0) {
t = strtok(NULL, " \t\n");
/* handle "media: Ethernet manual" */
if (strcmp(t, "Ethernet") == 0)
t = strtok(NULL, " \t\n");
if (strcmp(t, "none") != 0 &&
strcmp(t, "manual") != 0)
strcpy(net_media, t);
}
}
}
/* Check host (and domain?) name */
if (gethostname(hostname, sizeof(hostname)) == 0) {
hostname[sizeof(hostname) - 1] = '\0';
strncpy(net_host, hostname, sizeof(net_host));
}
}
/*
* Get the information to configure the network, configure it and
* make sure both the gateway and the name server are up.
*/
int
config_network()
{ char *tp;
char defname[255];
int octet0;
int pass, needmedia;
FILE *f;
time_t now;
if (network_up)
return (1);
network_up = 1;
net_devices[0] = '\0';
get_ifconfig_info();
if (strlen(net_devices) == 0) {
/* No network interfaces found! */
msg_display(MSG_nonet);
process_menu(MENU_ok);
return (-1);
}
strncpy(defname, net_devices, 255);
tp = defname;
strsep(&tp, " ");
msg_prompt(MSG_asknetdev, defname, net_dev, 255, net_devices);
tp = net_dev;
strsep(&tp, " ");
net_dev[strlen(net_dev)+1] = 0;
net_dev[strlen(net_dev)] = ' ';
while (strstr(net_devices, net_dev) == NULL) {
msg_prompt(MSG_badnet, defname, net_dev, 255, net_devices);
tp = net_dev;
strsep(&tp, " ");
net_dev[strlen(net_dev)+1] = 0;
net_dev[strlen(net_dev)] = ' ';
}
/* Remove that space we added. */
net_dev[strlen(net_dev) - 1] = 0;
/* Preload any defaults we can find */
get_ifinterface_info();
pass = strlen(net_mask) == 0 ? 0 : 1;
needmedia = strlen(net_media) == 0 ? 0 : 1;
/* Get other net information */
msg_display(MSG_netinfo);
do {
msg_prompt_add(MSG_net_domain, net_domain, net_domain, STRSIZE);
msg_prompt_add(MSG_net_host, net_host, net_host, STRSIZE);
msg_prompt_add(MSG_net_ip, net_ip, net_ip, STRSIZE);
octet0 = atoi(net_ip);
if (!pass) {
if (0 <= octet0 && octet0 <= 127)
strcpy(net_mask, "0xff000000");
else if (128 <= octet0 && octet0 <= 191)
strcpy(net_mask, "0xffff0000");
else if (192 <= octet0 && octet0 <= 223)
strcpy(net_mask, "0xffffff00");
}
msg_prompt_add(MSG_net_mask, net_mask, net_mask, STRSIZE);
msg_prompt_add(MSG_net_defroute, net_defroute, net_defroute,
STRSIZE);
msg_prompt_add(MSG_net_namesrv, net_namesvr, net_namesvr,
STRSIZE);
if (needmedia)
msg_prompt_add(MSG_net_media, net_media, net_media,
STRSIZE);
msg_display(MSG_netok, net_domain, net_host, net_ip, net_mask,
*net_namesvr == '\0' ? "<none>" : net_namesvr,
*net_defroute == '\0' ? "<none>" : net_defroute,
*net_media == '\0' ? "<default>" : net_media);
process_menu(MENU_yesno);
if (!yesno)
msg_display(MSG_netagain);
pass++;
} while (!yesno);
/* Create /etc/resolv.conf if a nameserver was given */
if (strcmp(net_namesvr, "") != 0) {
#ifdef DEBUG
f = fopen("/tmp/resolv.conf", "w");
#else
f = fopen("/etc/resolv.conf", "w");
#endif
if (f == NULL) {
if (logging)
(void)fprintf(log, "%s", msg_string(MSG_resolv));
(void)fprintf(stderr, "%s", msg_string(MSG_resolv));
exit(1);
}
if (scripting)
(void)fprintf(script, "cat <<EOF >/etc/resolv.conf\n");
time(&now);
/* NB: ctime() returns a string ending in '\n' */
(void)fprintf(f, ";\n; BIND data file\n; %s %s;\n",
"Created by NetBSD sysinst on", ctime(&now));
(void)fprintf (f,
"nameserver %s\nlookup file bind\nsearch %s\n",
net_namesvr, net_domain);
if (scripting) {
(void)fprintf(script, ";\n; BIND data file\n; %s %s;\n",
"Created by NetBSD sysinst on", ctime(&now));
(void)fprintf (script,
"nameserver %s\nlookup file bind\nsearch %s\n",
net_namesvr, net_domain);
}
fflush(NULL);
fclose(f);
}
run_prog(0, 0, "/sbin/ifconfig lo0 127.0.0.1");
/*
* ifconfig does not allow media specifiers on IFM_MANUAL interfaces.
* Our UI gies no way to set an option back to null-string if it
* gets accidentally set.
* good way to re-set the media media to null-string.
* Check for plausible alternatives.
*/
if (strcmp(net_media, "<default>") == 0 ||
strcmp(net_media, "default") == 0 ||
strcmp(net_media, "<manual>") == 0 ||
strcmp(net_media, "manual") == 0 ||
strcmp(net_media, "<none>") == 0 ||
strcmp(net_media, "none") == 0 ||
strcmp(net_media, " ") == 0) {
*net_media = '\0';
}
if (*net_media != '\0')
run_prog(0, 0, "/sbin/ifconfig %s inet %s netmask %s media %s",
net_dev, net_ip, net_mask, net_media);
else
run_prog(0, 0, "/sbin/ifconfig %s inet %s netmask %s", net_dev,
net_ip, net_mask);
/* Set host name */
if (strcmp(net_host, "") != 0)
sethostname(net_host, strlen(net_host));
/* Set a default route if one was given */
if (strcmp(net_defroute, "") != 0) {
run_prog(0, 0, "/sbin/route -n flush");
run_prog(0, 0, "/sbin/route -n add default %s",
net_defroute);
}
/*
* ping should be verbose, so users can see the cause
* of a network failure.
*/
if (strcmp(net_namesvr, "") != 0 && network_up)
network_up = !run_prog(0, 1, "/sbin/ping -c 2 %s",
net_namesvr);
if (strcmp(net_defroute, "") != 0 && network_up)
network_up = !run_prog(0, 1, "/sbin/ping -c 2 %s",
net_defroute);
fflush(NULL);
return network_up;
}
int
get_via_ftp()
{
distinfo *list;
char filename[SSTRSIZE];
int ret;
while (!config_network()) {
msg_display(MSG_netnotup);
process_menu(MENU_yesno);
if (!yesno)
return 0;
}
cd_dist_dir("ftp");
/* Fill in final values for ftp_dir. */
strncat(ftp_dir, rel, STRSIZE - strlen(ftp_dir));
strcat(ftp_dir, "/");
strncat(ftp_dir, machine, STRSIZE - strlen(ftp_dir));
strncat(ftp_dir, ftp_prefix, STRSIZE - strlen(ftp_dir));
process_menu(MENU_ftpsource);
list = dist_list;
while (list->name) {
if (!list->getit) {
list++;
continue;
}
(void)snprintf(filename, SSTRSIZE, "%s%s", list->name,
dist_postfix);
if (strcmp ("ftp", ftp_user) == 0)
ret = run_prog(0, 1, "/usr/bin/ftp -a 'ftp://%s/%s/%s'",
ftp_host, ftp_dir, filename);
else
ret = run_prog(0, 1, "/usr/bin/ftp 'ftp://%s:%s@%s/%s/%s'",
ftp_user, ftp_pass, ftp_host, ftp_dir, filename);
if (ret) {
/* Error getting the file. Bad host name ... ? */
msg_display(MSG_ftperror_cont);
getchar();
puts(CL);
wrefresh(stdscr);
msg_display(MSG_ftperror);
process_menu(MENU_yesno);
if (yesno)
process_menu(MENU_ftpsource);
else
return 0;
} else
list++;
}
puts(CL); /* Just to make sure. */
wrefresh(stdscr);
#ifndef DEBUG
chdir("/"); /* back to current real root */
#endif
return (1);
}
int
get_via_nfs()
{
while (!config_network()) {
msg_display(MSG_netnotup);
process_menu(MENU_yesno);
if (!yesno)
return (0);
}
/* Get server and filepath */
process_menu(MENU_nfssource);
again:
run_prog(0, 0, "/sbin/umount /mnt2");
/* Mount it */
if (run_prog(0, 0, "/sbin/mount -r -o -i,-r=1024 -t nfs %s:%s /mnt2",
nfs_host, nfs_dir)) {
msg_display(MSG_nfsbadmount, nfs_host, nfs_dir);
process_menu(MENU_nfsbadmount);
if (!yesno)
return (0);
if (!ignorerror)
goto again;
}
/* Verify distribution files exist. */
if (distribution_sets_exist_p("/mnt2") == 0) {
msg_display(MSG_badsetdir, "/mnt2");
process_menu (MENU_nfsbadmount);
if (!yesno)
return (0);
if (!ignorerror)
goto again;
}
/* return location, don't clean... */
strcpy(ext_dir, "/mnt2");
clean_dist_dir = 0;
mnt2_mounted = 1;
return 1;
}
/*
* Write the network config info the user entered via menus into the
* config files in the target disk. Be careful not to lose any
* information we don't immediately add back, in case the install
* target is the currently-active root.
*
* XXXX rc.conf support is needed here!
*/
void
mnt_net_config(void)
{
char ans [5] = "y";
char ifconfig_fn [STRSIZE];
FILE *f;
if (network_up) {
msg_prompt(MSG_mntnetconfig, ans, ans, 5);
if (*ans == 'y') {
/* Write hostname to /etc/myname */
f = target_fopen("/etc/myname", "w");
if (f != 0) {
(void)fprintf(f, "%s\n", net_host);
if (scripting)
(void)fprintf(script, "echo \"%s\" >%s/etc/myname\n", net_host, target_prefix());
(void)fclose(f);
}
/* If not running in target, copy resolv.conf there. */
if (strcmp(net_namesvr, "") != 0)
dup_file_into_target("/etc/resolv.conf");
/*
* Add IPaddr/hostname to /etc/hosts.
* Be careful not to clobber any existing contents.
* Relies on ordered seach of /etc/hosts. XXX YP?
*/
f = target_fopen("/etc/hosts", "a");
if (f != 0) {
(void)fprintf(f, msg_string(MSG_etc_hosts),
net_ip, net_host, net_domain, net_host);
(void)fclose(f);
if (scripting) {
(void)fprintf(script, "cat <<EOF >>%s/etc/hosts\n", target_prefix());
(void)fprintf(script, msg_string(MSG_etc_hosts),
net_ip, net_host, net_domain, net_host);
(void)fprintf(script, "EOF\n");
}
}
/* Write IPaddr and netmask to /etc/ifconfig.if[0-9] */
snprintf(ifconfig_fn, STRSIZE, "/etc/ifconfig.%s",
net_dev);
f = target_fopen(ifconfig_fn, "w");
if (f != 0) {
if (*net_media != '\0') {
fprintf(f, "%s netmask %s media %s\n",
net_ip, net_mask, net_media);
if (scripting)
fprintf(script, "echo \"%s netmask %s media %s\">%s%s\n",
net_ip, net_mask, net_media, target_prefix(), ifconfig_fn);
} else {
fprintf(f, "%s netmask %s\n",
net_ip, net_mask);
if (scripting)
fprintf(script, "echo \"%s netmask %s\">%s%s\n",
net_ip, net_mask, target_prefix(), ifconfig_fn);
}
fclose(f);
}
f = target_fopen("/etc/mygate", "w");
if (f != 0) {
fprintf(f, "%s\n", net_defroute);
if (scripting)
fprintf(script, "echo \"%s\" >%s/etc/mygate\n", net_defroute, target_prefix());
fclose(f);
}
fflush(NULL);
}
}
}
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