1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
#
# Chroot.pm: chroot library for sbuild
# Copyright © 2005 Ryan Murray <rmurray@debian.org>
# Copyright © 2005-2008 Roger Leigh <rleigh@debian.org>
# Copyright © 2008 Simon McVittie <smcv@debian.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see
# <http://www.gnu.org/licenses/>.
#
#######################################################################
package Sbuild::ChrootSchroot;
use strict;
use warnings;
BEGIN {
use Exporter ();
use Sbuild::Chroot;
our (@ISA, @EXPORT);
@ISA = qw(Exporter Sbuild::Chroot);
@EXPORT = qw();
}
sub new {
my $class = shift;
my $conf = shift;
my $chroot_id = shift;
my $self = $class->SUPER::new($conf, $chroot_id);
bless($self, $class);
return $self;
}
sub begin_session {
my $self = shift;
my $chroot = $self->get('Chroot ID');
my $schroot_session=readpipe($self->get_conf('SCHROOT') . " -c $chroot --begin-session");
chomp($schroot_session);
if ($?) {
print STDERR "Chroot setup failed\n";
return 0;
}
$self->set('Session ID', $schroot_session);
print STDERR "Setting up chroot $chroot (session id $schroot_session)\n"
if $self->get_conf('DEBUG');
my $info = $self->get('Chroots')->get_info($schroot_session);
if (defined($info) &&
defined($info->{'Location'}) && -d $info->{'Location'}) {
$self->set('Priority', $info->{'Priority'});
$self->set('Location', $info->{'Location'});
$self->set('Session Purged', $info->{'Session Purged'});
} else {
die $self->get('Chroot ID') . " chroot does not exist\n";
}
return 0 if !$self->_setup_options();
return 1;
}
sub end_session {
my $self = shift;
return if $self->get('Session ID') eq "";
print STDERR "Cleaning up chroot (session id " . $self->get('Session ID') . ")\n"
if $self->get_conf('DEBUG');
system($self->get_conf('SCHROOT') . ' -c ' . $self->get('Session ID') . ' --end-session');
$self->set('Session ID', "");
if ($?) {
print STDERR "Chroot cleanup failed\n";
return 0;
}
return 1;
}
sub get_command_internal {
my $self = shift;
my $options = shift;
my $command = $options->{'INTCOMMAND'}; # Command to run
my $user = $options->{'USER'}; # User to run command under
my $chroot = $options->{'CHROOT'}; # Run in chroot?
my $dir; # Directory to use (optional)
$dir = $self->get('Defaults')->{'DIR'} if
(defined($self->get('Defaults')) &&
defined($self->get('Defaults')->{'DIR'}));
$dir = $options->{'DIR'} if
defined($options->{'DIR'}) && $options->{'DIR'};
if (!defined $user || $user eq "") {
$user = $self->get_conf('USERNAME');
}
if (!defined $chroot) {
$chroot = 1;
}
my @cmdline = ();
my $chdir = undef;
if ($chroot != 0) { # Run command inside chroot
if (!defined($dir)) {
$dir = '/';
}
@cmdline = ($self->get_conf('SCHROOT'),
'-d', $dir,
'-c', $self->get('Session ID'),
'--run-session',
@{$self->get_conf('SCHROOT_OPTIONS')},
'-u', "$user", '-p', '--',
@$command);
} else { # Run command outside chroot
if ($options->{'CHDIR_CHROOT'}) {
my $tmpdir = $self->get('Location');
$tmpdir = $tmpdir . $dir if defined($dir);
$dir = $tmpdir;
}
if ($user ne 'root' && $user ne $self->get_conf('USERNAME')) {
$self->log_warning("Command \"$command\" cannot be run as user $user on the host system\n");
} elsif ($user eq 'root') {
@cmdline = ($self->get_conf('SUDO'));
}
$chdir = $dir if defined($dir);
push(@cmdline, @$command);
}
$options->{'CHROOT'} = $chroot;
$options->{'USER'} = $user;
$options->{'COMMAND'} = $command;
$options->{'EXPCOMMAND'} = \@cmdline;
$options->{'CHDIR'} = $chdir;
$options->{'DIR'} = $dir;
}
1;
|
