From e9f498cb097dc5d70114ca03626e4bffc779bae5 Mon Sep 17 00:00:00 2001
From: Pascal Rigaux <pixel@mandriva.com>
Date: Tue, 3 Aug 2004 09:25:59 +0000
Subject: move mount options related stuff from fs.pm to newly created
 fs/mount_options.pm - fs::set_all_default_options() ->
 fs::mount_options::set_all_default() - fs::mount_options_pack() ->
 fs::mount_options::pack() - fs::mount_options_unpack() ->
 fs::mount_options::unpack() - fs::rationalize_options() ->
 fs::mount_options::rationalize() - fs::set_default_options() ->
 fs::mount_options::set_default() - fs::mount_options() ->
 fs::mount_options::list() - fs::mount_options_help() ->
 fs::mount_options::help()

---
 perl-install/fs.pm | 245 +----------------------------------------------------
 1 file changed, 3 insertions(+), 242 deletions(-)

(limited to 'perl-install/fs.pm')

diff --git a/perl-install/fs.pm b/perl-install/fs.pm
index 391981307..e84c9d938 100644
--- a/perl-install/fs.pm
+++ b/perl-install/fs.pm
@@ -11,6 +11,7 @@ use devices;
 use fs::type;
 use fs::get;
 use fs::format;
+use fs::mount_options;
 use run_program;
 use detect_devices;
 use modules;
@@ -87,12 +88,12 @@ sub read_fstab {
 	    require network::smb;
 	    #- remove credentials=file with username=foo,password=bar,domain=zoo
 	    #- the other way is done in fstab_to_string
-	    my ($options, $unknown) = mount_options_unpack($h);
+	    my ($options, $unknown) = fs::mount_options::unpack($h);
 	    my $file = delete $options->{'credentials='};
 	    my $credentials = network::smb::read_credentials_raw($file);
 	    if ($credentials->{username}) {
 		$options->{"$_="} = $credentials->{$_} foreach qw(username password domain);
-		mount_options_pack($h, $options, $unknown);
+		fs::mount_options::pack($h, $options, $unknown);
 	    }
 	}
 
@@ -337,246 +338,6 @@ sub auto_fs() {
     grep { chop; $_ && !/nodev/ } cat_("/etc/filesystems");
 }
 
-sub mount_options() {
-    my %non_defaults = (
-			sync => 'async', noatime => 'atime', noauto => 'auto', ro => 'rw', 
-			user => 'nouser', nodev => 'dev', noexec => 'exec', nosuid => 'suid',
-		       );
-    my @user_implies = qw(noexec nodev nosuid);
-    \%non_defaults, \@user_implies;
-}
-
-sub mount_options_unpack {
-    my ($part) = @_;
-    my $packed_options = $part->{options};
-
-    my ($non_defaults, $user_implies) = mount_options();
-
-    my @auto_fs = auto_fs();
-    my %per_fs = (
-		  iso9660 => [ qw(unhide) ],
-		  vfat => [ qw(umask=0 umask=0022) ],
-		  ntfs => [ qw(umask=0 umask=0022) ],
-		  nfs => [ qw(rsize=8192 wsize=8192) ],
-		  smbfs => [ qw(username= password=) ],
-		  davfs => [ qw(username= password= uid= gid=) ],
-		  reiserfs => [ 'notail' ],
-		 );
-    push @{$per_fs{$_}}, 'usrquota', 'grpquota' foreach 'ext2', 'ext3', 'xfs';
-
-    while (my ($fs, $l) = each %per_fs) {
-	$part->{fs_type} eq $fs || $part->{fs_type} eq 'auto' && member($fs, @auto_fs) or next;
-	$non_defaults->{$_} = 1 foreach @$l;
-    }
-
-    $non_defaults->{encrypted} = 1 if !$part->{isFormatted} || isSwap($part);
-
-    $non_defaults->{supermount} = 1 if $part->{fs_type} =~ /:/ || member($part->{fs_type}, 'auto', @auto_fs);
-
-    my $defaults = { reverse %$non_defaults };
-    my %options = map { $_ => '' } keys %$non_defaults;
-    my @unknown;
-    foreach (split(",", $packed_options)) {
-	if ($_ eq 'user') {
-	    $options{$_} = 1 foreach 'user', @$user_implies;
-	} elsif (exists $non_defaults->{$_}) {
-	    $options{$_} = 1;
-	} elsif ($defaults->{$_}) {
-	    $options{$defaults->{$_}} = 0;
-	} elsif (/(.*?=)(.*)/) {
-	    $options{$1} = $2;
-	} else {
-	    push @unknown, $_;
-	}
-    }
-    # merge those, for cleaner help
-    $options{'rsize=8192,wsize=8192'} = delete $options{'rsize=8192'} && delete $options{'wsize=8192'}
-      if exists $options{'rsize=8192'};
-
-    my $unknown = join(",", @unknown);
-    \%options, $unknown;
-}
-
-sub mount_options_pack_ {
-    my ($_part, $options, $unknown) = @_;
-
-    my ($non_defaults, $user_implies) = mount_options();
-    my @l;
-
-    my @umasks = map {
-	if (/^umask=/) {
-	    my $v = delete $options->{$_};
-	    /^umask=(.+)/ ? if_($v, $1) : $v;
-	} else { () }
-    } keys %$options;
-    if (@umasks) {
-	push @l, 'umask=' . min(@umasks);
-    }
-
-    if (delete $options->{user}) {
-	push @l, 'user';
-	foreach (@$user_implies) {
-	    if (!delete $options->{$_}) {
-		# overriding
-		$options->{$non_defaults->{$_}} = 1;
-	    }
-	}
-    }
-    push @l, map_each { if_($::b, $::a =~ /=$/ ? "$::a$::b" : $::a) } %$options;
-    push @l, $unknown;
-
-    join(",", uniq(grep { $_ } @l));
-}
-sub mount_options_pack {
-    my ($part, $options, $unknown) = @_;
-    $part->{options} = mount_options_pack_($part, $options, $unknown);
-    noreturn();
-}
-
-# update me on each util-linux new release:
-sub mount_options_help() {
-    (
-
-	'grpquota' => '',
-
-	'noatime' => N("Do not update inode access times on this file system
-(e.g, for faster access on the news spool to speed up news servers)."),
-
-	'noauto' => N("Can only be mounted explicitly (i.e.,
-the -a option will not cause the file system to be mounted)."),
-
-	'nodev' => N("Do not interpret character or block special devices on the file system."),
-
-	'noexec' => N("Do not allow execution of any binaries on the mounted
-file system. This option might be useful for a server that has file systems
-containing binaries for architectures other than its own."),
-
-	'nosuid' => N("Do not allow set-user-identifier or set-group-identifier
-bits to take effect. (This seems safe, but is in fact rather unsafe if you
-have suidperl(1) installed.)"),
-
-	'ro' => N("Mount the file system read-only."),
-
-	'sync' => N("All I/O to the file system should be done synchronously."),
-
-	'supermount' => '',
-
-	'user' => N("Allow an ordinary user to mount the file system. The
-name of the mounting user is written to mtab so that he can unmount the file
-system again. This option implies the options noexec, nosuid, and nodev
-(unless overridden by subsequent options, as in the option line
-user,exec,dev,suid )."),
-
-	'usrquota' => '',
-
-        'umask=0' => N("Give write access to ordinary users"),
-
-        'umask=0022' => N("Give read-only access to ordinary users"),
-    );
-}
-
-
-sub rationalize_options {
-    my ($part) = @_;
-
-    my ($options, $unknown) = mount_options_unpack($part);
-
-    if ($part->{fs_type} ne 'reiserfs') {
-	$options->{notail} = 0;
-    }
-
-    mount_options_pack($part, $options, $unknown);
-}
-
-sub set_default_options {
-    my ($part, %opts) = @_;
-    #- opts are: useSupermount security iocharset codepage
-
-    my ($options, $unknown) = mount_options_unpack($part);
-
-    if ($part->{is_removable} && !member($part->{mntpoint}, qw(/ /usr /var /boot))) {
-	$options->{supermount} = $opts{useSupermount} && !($opts{useSupermount} eq 'magicdev' && $part->{media_type} eq 'cdrom');
-	$part->{fs_type} = !$options->{supermount} ? 'auto' :
-		    $part->{media_type} eq 'cdrom' ? 'udf:iso9660' : 'ext2:vfat';
-    }
-
-    if ($part->{media_type} eq 'cdrom') {
-	$options->{ro} = 1;
-    }
-
-    if ($part->{media_type} eq 'fd') {
-	# slow device so don't loose time, write now!
-	$options->{sync} = 1;
-    }
-
-    if (isTrueFS($part)) {
-	#- noatime on laptops (do not wake up the hd)
-	#- Do  not  update  inode  access times on this
-	#- file system (e.g, for faster access  on  the
-	#- news spool to speed up news servers).
-	$options->{noatime} = detect_devices::isLaptop();
-    }
-    if ($part->{fs_type} eq 'nfs') {
-	put_in_hash($options, { 
-			       nosuid => 1, 'rsize=8192,wsize=8192' => 1, soft => 1,
-			      });
-    }
-    if ($part->{fs_type} eq 'smbfs') {
-	add2hash($options, { 'username=' => '%' }) if !$options->{'credentials='};
-    }
-    if (member('vfat', split(':', $part->{fs_type})) || $part->{fs_type} eq 'auto') {
-
-	put_in_hash($options, {
-			       user => 1, noexec => 0,
-			      }) if $part->{is_removable};
-
-	put_in_hash($options, {
-			       'umask=0' => $opts{security} < 3, 'umask=0022' => $opts{security} < 4,
-			       'iocharset=' => $opts{iocharset}, 'codepage=' => $opts{codepage},
-			      });
-    }
-    if ($part->{fs_type} eq 'ntfs') {
-	put_in_hash($options, { ro => 1, 'nls=' => $opts{iocharset},
-				'umask=0' => $opts{security} < 3, 'umask=0022' => $opts{security} < 4,
-			      });
-    }
-    if (member('iso9660', split(':', $part->{fs_type})) || $part->{fs_type} eq 'auto') {
-	put_in_hash($options, { user => 1, noexec => 0, 'iocharset=' => $opts{iocharset} });
-    }
-    if ($part->{fs_type} eq 'reiserfs') {
-	$options->{notail} = 1;
-    }
-    if (isLoopback($part) && !isSwap($part)) { #- no need for loop option for swap files
-	$options->{loop} = 1;
-    }
-
-    # rationalize: no need for user
-    if ($options->{autofs} || $options->{supermount}) {
-	$options->{user} = 0;
-    }
-
-    # have noauto when we have user
-    $options->{noauto} = 1 if $options->{user}; 
-
-    if ($options->{user}) {
-	# ensure security  (user_implies - noexec as noexec is not a security matter)
-	$options->{$_} = 1 foreach 'nodev', 'nosuid';
-    }
-
-    mount_options_pack($part, $options, $unknown);
-
-    rationalize_options($part);
-}
-
-sub set_all_default_options {
-    my ($all_hds, %opts) = @_;
-    #- opts are: useSupermount security iocharset codepage
-
-    foreach my $part (fs::get::really_all_fstab($all_hds)) {
-	set_default_options($part, %opts);
-    }
-}
-
 sub set_removable_mntpoints {
     my ($all_hds) = @_;
 
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