NetBSD/distrib/utils/sysinst/util.c

899 lines
20 KiB
C

/* $NetBSD: util.c,v 1.50 2000/03/14 22:42:49 fvdl 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 developed 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.
*
*/
/* util.c -- routines that don't really fit anywhere else... */
#include <stdio.h>
#include <stdarg.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/stat.h>
#include <curses.h>
#include <errno.h>
#include "defs.h"
#include "md.h"
#include "msg_defs.h"
#include "menu_defs.h"
/*
* local prototypes
*/
struct tarstats {
int nselected;
int nfound;
int nnotfound;
int nerror;
int nsuccess;
int nskipped;
} tarstats;
int extract_file __P((char *path));
int extract_dist __P((void));
int cleanup_dist __P((const char *path));
int distribution_sets_exist_p __P((const char *path));
static int check_for __P((const char *type, const char *pathname));
/*
* XXX these are WAY bogus!
*/
int
dir_exists_p(path)
const char *path;
{
register int result;
result = (run_prog(0, 0, NULL, "test -d %s", path) == 0);
return (result);
}
int
file_exists_p(path)
const char *path;
{
register int result;
result = (run_prog(0, 0, NULL, "test -f %s", path) == 0);
return (result);
}
int
distribution_sets_exist_p(path)
const char *path;
{
char buf[STRSIZE];
int result;
result = 1;
snprintf(buf, STRSIZE, "%s/%s", path, "kern.tgz");
result = result && file_exists_p(buf);
snprintf(buf, STRSIZE, "%s/%s", path, "etc.tgz");
result = result && file_exists_p(buf);
return(result);
}
void
get_ramsize()
{
long len = sizeof(long);
int mib[2] = {CTL_HW, HW_PHYSMEM};
sysctl(mib, 2, (void *)&ramsize, (size_t *)&len, NULL, 0);
/* Find out how many Megs ... round up. */
rammb = (ramsize + MEG - 1) / MEG;
}
static int asked = 0;
void
ask_sizemult(cylsize)
int cylsize;
{
current_cylsize = cylsize; /* XXX */
if (!asked) {
msg_display(MSG_sizechoice);
process_menu(MENU_sizechoice);
}
asked = 1;
}
void
reask_sizemult(cylsize)
int cylsize;
{
asked = 0;
ask_sizemult(cylsize);
}
void
run_makedev()
{
char *owd;
wclear(stdscr);
wrefresh(stdscr);
msg_display(MSG_makedev);
sleep (1);
owd = getcwd(NULL,0);
/* make /dev, in case the user didn't extract it. */
make_target_dir("/dev");
target_chdir_or_die("/dev");
run_prog(0, 0, NULL, "/bin/sh MAKEDEV all");
chdir(owd);
free(owd);
}
/*
* Load files from floppy. Requires a /mnt2 directory for mounting them.
*/
int
get_via_floppy()
{
char distname[STRSIZE];
char fddev[STRSIZE] = "/dev/fd0a";
char fname[STRSIZE];
char fullname[STRSIZE];
char catcmd[STRSIZE];
distinfo *list;
char post[4];
int mounted = 0;
int first;
struct stat sb;
cd_dist_dir("unloading from floppy");
msg_prompt_add(MSG_fddev, fddev, fddev, STRSIZE);
list = dist_list;
while (list->name) {
strcpy(post, ".aa");
snprintf(distname, STRSIZE, "%s%s", list->name, dist_postfix);
while (list->getit && strcmp(&post[1],list->fdlast) <= 0) {
snprintf(fname, STRSIZE, "%s%s", list->name, post);
snprintf(fullname, STRSIZE, "/mnt2/%s", fname);
first = 1;
while (!mounted || stat(fullname, &sb)) {
if (mounted)
run_prog(0, 0, NULL, "/sbin/umount /mnt2");
if (first)
msg_display(MSG_fdmount, fname);
else
msg_display(MSG_fdnotfound, fname);
process_menu(MENU_fdok);
if (!yesno)
return 0;
while (run_prog(0, 0, NULL,
"/sbin/mount -r -t %s %s /mnt2",
fdtype, fddev)) {
msg_display(MSG_fdremount, fname);
process_menu(MENU_fdremount);
if (!yesno)
return 0;
}
mounted = 1;
first = 0;
}
sprintf(catcmd, "/bin/cat %s >> %s",
fullname, distname);
if (logging)
(void)fprintf(log, "%s\n", catcmd);
if (scripting)
(void)fprintf(script, "%s\n", catcmd);
do_system(catcmd);
if (post[2] < 'z')
post[2]++;
else
post[2] = 'a', post[1]++;
}
run_prog(0, 0, NULL, "/sbin/umount /mnt2");
mounted = 0;
list++;
}
#ifndef DEBUG
chdir("/"); /* back to current real root */
#endif
return 1;
}
/*
* Get from a CDROM distribution.
*/
int
get_via_cdrom()
{
char tmpdir[STRSIZE];
/*
* Fill in final default path, similar to ftp path
* because we expect the CDROM structure to be the
* same as the ftp site.
*/
strncat(cdrom_dir, machine, STRSIZE - strlen(cdrom_dir));
strncat(cdrom_dir, ftp_prefix, STRSIZE - strlen(cdrom_dir));
/* Get CD-rom device name and path within CD-rom */
process_menu(MENU_cdromsource);
again:
run_prog(0, 0, NULL, "/sbin/umount /mnt2");
/* Mount it */
if (run_prog(0, 0, NULL,
"/sbin/mount -rt cd9660 /dev/%sa /mnt2", cdrom_dev)) {
msg_display(MSG_badsetdir, cdrom_dev);
process_menu(MENU_cdrombadmount);
if (!yesno)
return 0;
if (!ignorerror)
goto again;
}
snprintf(tmpdir, STRSIZE, "%s/%s", "/mnt2", cdrom_dir);
/* Verify distribution files exist. */
if (distribution_sets_exist_p(tmpdir) == 0) {
msg_display(MSG_badsetdir, tmpdir);
process_menu(MENU_cdrombadmount);
if (!yesno)
return (0);
if (!ignorerror)
goto again;
}
/* return location, don't clean... */
strncpy(ext_dir, tmpdir, STRSIZE);
clean_dist_dir = 0;
mnt2_mounted = 1;
return 1;
}
/*
* Get from a pathname inside an unmounted local filesystem
* (e.g., where sets were preloaded onto a local DOS partition)
*/
int
get_via_localfs()
{
char tmpdir[STRSIZE];
/* Get device, filesystem, and filepath */
process_menu (MENU_localfssource);
again:
run_prog(0, 0, NULL, "/sbin/umount /mnt2");
/* Mount it */
if (run_prog(0, 0, NULL, "/sbin/mount -rt %s /dev/%s /mnt2",
localfs_fs, localfs_dev)) {
msg_display(MSG_localfsbadmount, localfs_dir, localfs_dev);
process_menu(MENU_localfsbadmount);
if (!yesno)
return 0;
if (!ignorerror)
goto again;
}
snprintf(tmpdir, STRSIZE, "%s/%s", "/mnt2", localfs_dir);
/* Verify distribution files exist. */
if (distribution_sets_exist_p(tmpdir) == 0) {
msg_display(MSG_badsetdir, tmpdir);
process_menu(MENU_localfsbadmount);
if (!yesno)
return 0;
if (!ignorerror)
goto again;
}
/* return location, don't clean... */
strncpy(ext_dir, tmpdir, STRSIZE);
clean_dist_dir = 0;
mnt2_mounted = 1;
return 1;
}
/*
* Get from an already-mounted pathname.
*/
int get_via_localdir(void)
{
/* Get device, filesystem, and filepath */
process_menu(MENU_localdirsource);
again:
/* Complain if not a directory */
if (dir_exists_p(localfs_dir) == 0) {
msg_display(MSG_badlocalsetdir, localfs_dir);
process_menu(MENU_localdirbad);
if (!yesno)
return (0);
if (!ignorerror)
goto again;
}
/* Verify distribution files exist. */
if (distribution_sets_exist_p(localfs_dir) == 0) {
msg_display(MSG_badsetdir, localfs_dir);
process_menu(MENU_localdirbad);
if (!yesno)
return (0);
if (!ignorerror)
goto again;
}
/* return location, don't clean... */
strncpy(ext_dir, localfs_dir, STRSIZE);
clean_dist_dir = 0;
mnt2_mounted = 0;
return 1;
}
void
cd_dist_dir(forwhat)
char *forwhat;
{
char *cwd;
/* ask user for the mountpoint. */
msg_prompt(MSG_distdir, dist_dir, dist_dir, STRSIZE, forwhat);
/* make sure the directory exists. */
make_target_dir(dist_dir);
clean_dist_dir = 1;
target_chdir_or_die(dist_dir);
/* Set ext_dir for absolute path. */
cwd = getcwd(NULL,0);
strncpy(ext_dir, cwd, STRSIZE);
free (cwd);
}
/*
* Support for custom distribution fetches / unpacks.
*/
void
toggle_getit(num)
int num;
{
dist_list[num].getit ^= 1;
}
void
show_cur_distsets()
{
distinfo *list;
msg_display(MSG_cur_distsets);
msg_table_add(MSG_cur_distsets_header);
list = dist_list;
while (list->name) {
msg_table_add(MSG_cur_distsets_row, list->desc,
list->getit ? msg_string(MSG_yes) : msg_string(MSG_no));
list++;
}
}
/* Do we want a verbose extract? */
static int verbose = -1;
void
ask_verbose_dist()
{
if (verbose < 0) {
msg_display(MSG_verboseextract);
process_menu(MENU_noyes);
verbose = yesno;
wclear(stdscr);
wrefresh(stdscr);
}
}
int
extract_file(path)
char *path;
{
char *owd;
int tarexit, rv;
owd = getcwd (NULL,0);
/* check tarfile exists */
if (!file_exists_p(path)) {
tarstats.nnotfound++;
msg_display(MSG_notarfile, path);
process_menu(MENU_noyes);
return (yesno == 0);
}
tarstats.nfound++;
/* cd to the target root. */
target_chdir_or_die("/");
/* now extract set files files into "./". */
tarexit = run_prog(0, 1, NULL,
"pax -zr%spe -f %s", verbose ? "v" : "", path);
/* Check tarexit for errors and give warning. */
if (tarexit) {
tarstats.nerror++;
msg_display(MSG_tarerror, path);
process_menu(MENU_noyes);
rv = (yesno == 0);
} else {
tarstats.nsuccess++;
rv = 0;
}
chdir(owd);
free(owd);
return (rv);
}
/*
* Extract_dist **REQUIRES** an absolute path in ext_dir. Any code
* that sets up dist_dir for use by extract_dist needs to put in the
* full path name to the directory.
*/
int
extract_dist()
{
char distname[STRSIZE];
char fname[STRSIZE];
distinfo *list;
int punt;
/* reset failure/success counters */
memset(&tarstats, 0, sizeof(tarstats));
/*endwin();*/
for (punt = 0, list = dist_list; list->name != NULL; list++) {
if (list->getit) {
tarstats.nselected++;
if (punt) {
tarstats.nskipped++;
continue;
}
if (cleanup_dist(list->name) == 0) {
msg_display(MSG_cleanup_warn);
process_menu(MENU_ok);
}
(void)snprintf(distname, STRSIZE, "%s%s", list->name,
dist_postfix);
(void)snprintf(fname, STRSIZE, "%s/%s", ext_dir,
distname);
/* if extraction failed and user aborted, punt. */
punt = extract_file(fname);
}
}
puts(CL); /* XXX */
wclear(stdscr);
wrefresh(stdscr);
if (tarstats.nerror == 0 && tarstats.nsuccess == tarstats.nselected) {
msg_display(MSG_endtarok);
process_menu(MENU_ok);
return 0;
} else {
/* We encountered errors. Let the user know. */
msg_display(MSG_endtar,
tarstats.nselected, tarstats.nnotfound, tarstats.nskipped,
tarstats.nfound, tarstats.nsuccess, tarstats.nerror);
process_menu(MENU_ok);
return 1;
}
}
/*
* Do pre-extract cleanup for set 'name':
* open a file named '/dist/<name>_obsolete file', which contain a list of
* files to kill from the target. For each file, test if it is present on
* the target. Then display the list of files which will be removed,
* ask user for confirmation, and process.
* Non-empty directories will be renaned to <directory.old>.
*/
/* definition for a list of files. */
struct filelist {
struct filelist *next;
char name[MAXPATHLEN];
mode_t type;
};
int
cleanup_dist(name)
const char *name;
{
char file_path[MAXPATHLEN];
char file_name[MAXPATHLEN];
FILE *list_file;
struct filelist *head = NULL;
struct filelist *current;
int saved_errno;
struct stat st;
int retval = 1;
int needok = 0;
snprintf(file_path, MAXPATHLEN, "/dist/%s_obsolete", name);
list_file = fopen(file_path, "r");
if (list_file == NULL) {
saved_errno = errno;
if (logging)
fprintf(log, "Open of %s failed: %s\n", file_path,
strerror(saved_errno));
if (saved_errno == ENOENT)
return 1;
msg_display_add(MSG_openfail, name, strerror(saved_errno));
process_menu(MENU_ok);
return 0;
}
while (fgets(file_name, MAXPATHLEN, list_file)) {
/* ignore lines that don't begin with '/' */
if (file_name[0] != '/')
continue;
/* Remove trailing \n if any */
if (file_name[strlen(file_name)-1] == '\n')
file_name[strlen(file_name)-1] = '\0';
snprintf(file_path, MAXPATHLEN, "%s%s", target_prefix(),
file_name);
if (lstat(file_path, &st) != 0) {
saved_errno = errno;
if (logging)
fprintf(log, "stat() of %s failed: %s\n",
file_path, strerror(saved_errno));
if (saved_errno == ENOENT)
continue;
msg_display_add(MSG_statfail, file_path,
strerror(saved_errno));
process_menu(MENU_ok);
return 0;
}
if (head == NULL) {
head = current = malloc(sizeof(struct filelist));
if (head == NULL) {
fprintf(stderr, "out of memory\n");
exit(1);
}
} else {
current->next = malloc(sizeof(struct filelist));
if (head == NULL) {
fprintf(stderr, "out of memory\n");
exit(1);
}
current = current->next;
}
current->next = NULL;
snprintf(current->name, MAXPATHLEN, "%s", file_path);
current->type = st.st_mode & S_IFMT;
if (logging)
fprintf(log, "Adding file %s, type %d to list of "
"obsolete file\n", current->name, current->type);
}
if (head == NULL)
return 1;
#if 0
/* XXX doesn't work, too many files printed ! */
msg_display(MSG_deleting_files);
for (current = head; current != NULL; current = current->next) {
if (current->type != S_IFDIR) {
/* XXX msg_printf_add going/gone away */
msg_printf_add("%s ", current->name);
}
}
msg_display_add(MSG_deleting_dirs);
for (current = head; current != NULL; current = current->next) {
if (current->type == S_IFDIR) {
/* XXX msg_printf_add going/gone away */
msg_printf_add("%s ", current->name);
}
}
process_menu(MENU_ok);
#endif
/* first remove files */
for (current = head; current != NULL; current = current->next) {
if (current->type == S_IFDIR)
continue;
if (scripting)
(void)fprintf(script, "rm %s\n", current->name);
if (unlink(current->name) != 0) {
saved_errno = errno;
if (logging)
fprintf(log, "rm %s failed: %s\n",
current->name, strerror(saved_errno));
msg_display_add(MSG_unlink_fail, current->name,
strerror(saved_errno));
retval = 0;
needok = 1;
}
}
/* now dirs */
for (current = head; current != NULL; current = current->next) {
if (current->type != S_IFDIR)
continue;
if (rmdir(current->name) == 0) {
if (scripting)
(void)fprintf(script, "rmdir %s\n",
current->name);
continue;
}
saved_errno = errno;
if (saved_errno == ENOTEMPTY) {
if (logging)
fprintf(log, "dir %s not empty, "
"trying to rename to %s.old\n",
current->name, current->name);
snprintf(file_path, MAXPATHLEN,
"%s.old", current->name);
if (scripting)
(void)fprintf(script, "mv %s %s\n",
current->name, file_path);
needok = 1;
if (rename(current->name, file_path) != 0) {
saved_errno = errno;
if (logging)
fprintf(log, "mv %s %s failed: %s\n",
current->name, file_path,
strerror(saved_errno));
msg_display_add(MSG_rename_fail, current->name,
file_path, strerror(errno));
retval = 0;
}
msg_display_add(MSG_renamed_dir, current->name,
file_path);
} else { /* rmdir error */
if (logging)
fprintf(log, "rm %s failed: %s\n",
current->name, strerror(saved_errno));
msg_display_add(MSG_unlink_fail, current->name,
strerror(saved_errno));
retval = 0;
needok = 1;
}
}
if (needok)
process_menu(MENU_ok);
return retval;
}
/*
* Get and unpack the distribution.
* show success_msg if installation completes. Otherwise,,
* show failure_msg and wait for the user to ack it before continuing.
* success_msg and failure_msg must both be 0-adic messages.
*/
int
get_and_unpack_sets(success_msg, failure_msg)
msg success_msg;
msg failure_msg;
{
/* Ensure mountpoint for distribution files exists in current root. */
(void) mkdir("/mnt2", S_IRWXU| S_IRGRP|S_IXGRP | S_IROTH|S_IXOTH);
if (scripting)
(void)fprintf(script, "mkdir /mnt2\nchmod 755 /mnt2\n");
/* Find out which files to "get" if we get files. */
wclear(stdscr);
wrefresh(stdscr);
process_menu(MENU_distset);
/* ask user whether to do normal or verbose extraction */
ask_verbose_dist();
/* Get the distribution files */
do {
got_dist = 0;
process_menu(MENU_distmedium);
} while (got_dist == -1);
if (nodist)
return 1;
if (got_dist) {
/* Extract the distribution, abort on errors. */
if (extract_dist())
return 1;
/* Configure the system */
run_makedev();
/* Other configuration. */
mnt_net_config();
/* Clean up dist dir (use absolute path name) */
if (clean_dist_dir)
run_prog(0, 0, NULL, "/bin/rm -rf %s", ext_dir);
/* Mounted dist dir? */
if (mnt2_mounted)
run_prog(0, 0, NULL, "/sbin/umount /mnt2");
/* Install/Upgrade complete ... reboot or exit to script */
msg_display(success_msg);
process_menu(MENU_ok);
return 0;
}
msg_display(failure_msg);
process_menu(MENU_ok);
return 1;
}
/*
* Do a quick sanity check that the target can reboot.
* return 1 if everything OK, 0 if there is a problem.
* Uses a table of files we expect to find after a base install/upgrade.
*/
/* test flag and pathname to check for after unpacking. */
struct check_table { const char *testarg; const char *path;} checks[] = {
{ "-f", "/netbsd" },
{ "-d", "/etc" },
{ "-f", "/etc/fstab" },
{ "-f", "/sbin/init" },
{ "-f", "/bin/sh" },
{ "-f", "/etc/rc" },
{ "-f", "/etc/rc.subr" },
{ "-f", "/etc/rc.conf" },
{ "-d" "/dev" },
{ "-c", "/dev/console" },
/* XXX check for rootdev in target /dev? */
{ "-f", "/etc/fstab" },
{ "-f", "/sbin/fsck" },
{ "-f", "/sbin/fsck_ffs" },
{ "-f", "/sbin/mount" },
{ "-f", "/sbin/mount_ffs" },
{ "-f", "/sbin/mount_nfs" },
#if defined(DEBUG) || defined(DEBUG_CHECK)
{ "-f", "/foo/bar" }, /* bad entry to exercise warning */
#endif
{ 0, 0 }
};
/*
* Check target for a single file.
*/
static int
check_for(type, pathname)
const char *type;
const char *pathname;
{
int found;
found = (target_test(type, pathname) == 0);
if (found == 0)
msg_display(MSG_rootmissing, pathname);
return found;
}
/*
* Check that all the files in check_table are present in the
* target root. Warn if not found.
*/
int
sanity_check()
{
int target_ok = 1;
struct check_table *p;
for (p = checks; p->path; p++) {
target_ok = target_ok && check_for(p->testarg, p->path);
}
if (target_ok)
return 0;
/* Uh, oh. Something's missing. */
msg_display(MSG_badroot);
process_menu(MENU_ok);
return 1;
}
/* set reverse to 1 to default to no */
int askyesno(int reverse)
{
WINDOW *yesnowin;
int c, found;
yesnowin = subwin(stdscr, 5, 20, getmaxy(stdscr)/2 - 2, getmaxx(stdscr)/2 - 10);
if (yesnowin == NULL) {
fprintf(stderr, "sysinst: failed to allocate yes/no box\n");
exit(1);
}
box(yesnowin, '*', '*');
wmove(yesnowin, 2,2);
if (reverse)
waddstr(yesnowin, "Yes or No: [N]");
else
waddstr(yesnowin, "Yes or No: [Y]");
wrefresh(yesnowin);
while ((c = getchar())) {
if (c == 'y' || c == 'Y') {
found = 1;
break;
} else if (c == 'n' || c == 'N' ) {
found = 0;
break;
} else if (c == '\n' || c == '\r') {
if (reverse)
found = 0;
else
found = 1;
break;
}
}
wclear(yesnowin);
wrefresh(yesnowin);
delwin(yesnowin);
refresh();
return(found);
}