mirror of
https://git.proxmox.com/git/pve-access-control
synced 2025-07-16 03:41:40 +00:00
782b702dbb
Allows us to add it in the gui, until now the admin needed to create the file themself. Mirrored after credential handling from CIFS and PBS in their pve-storage plugins Signed-off-by: Dominik Csapak <d.csapak@proxmox.com> [Thomas: don't differ from storage one unnecessarily, keep comments and behavior] Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
430 lines
10 KiB
Perl
Executable File
430 lines
10 KiB
Perl
Executable File
package PVE::Auth::LDAP;
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use PVE::Auth::Plugin;
|
|
use PVE::JSONSchema;
|
|
use PVE::LDAP;
|
|
use PVE::Tools;
|
|
|
|
use base qw(PVE::Auth::Plugin);
|
|
|
|
sub type {
|
|
return 'ldap';
|
|
}
|
|
|
|
sub properties {
|
|
return {
|
|
base_dn => {
|
|
description => "LDAP base domain name",
|
|
type => 'string',
|
|
pattern => '\w+=[^,]+(,\s*\w+=[^,]+)*',
|
|
optional => 1,
|
|
maxLength => 256,
|
|
},
|
|
user_attr => {
|
|
description => "LDAP user attribute name",
|
|
type => 'string',
|
|
pattern => '\S{2,}',
|
|
optional => 1,
|
|
maxLength => 256,
|
|
},
|
|
bind_dn => {
|
|
description => "LDAP bind domain name",
|
|
type => 'string',
|
|
pattern => '\w+=[^,]+(,\s*\w+=[^,]+)*',
|
|
optional => 1,
|
|
maxLength => 256,
|
|
},
|
|
password => {
|
|
description => "LDAP bind password. Will be stored in '/etc/pve/priv/realm/<REALM>.pw'.",
|
|
type => 'string',
|
|
optional => 1,
|
|
},
|
|
verify => {
|
|
description => "Verify the server's SSL certificate",
|
|
type => 'boolean',
|
|
optional => 1,
|
|
default => 0,
|
|
},
|
|
capath => {
|
|
description => "Path to the CA certificate store",
|
|
type => 'string',
|
|
optional => 1,
|
|
default => '/etc/ssl/certs',
|
|
},
|
|
cert => {
|
|
description => "Path to the client certificate",
|
|
type => 'string',
|
|
optional => 1,
|
|
},
|
|
certkey => {
|
|
description => "Path to the client certificate key",
|
|
type => 'string',
|
|
optional => 1,
|
|
},
|
|
filter => {
|
|
description => "LDAP filter for user sync.",
|
|
type => 'string',
|
|
optional => 1,
|
|
maxLength => 2048,
|
|
},
|
|
sync_attributes => {
|
|
description => "Comma separated list of key=value pairs for specifying"
|
|
." which LDAP attributes map to which PVE user field. For example,"
|
|
." to map the LDAP attribute 'mail' to PVEs 'email', write "
|
|
." 'email=mail'. By default, each PVE user field is represented "
|
|
." by an LDAP attribute of the same name.",
|
|
optional => 1,
|
|
type => 'string',
|
|
pattern => '\w+=[^,]+(,\s*\w+=[^,]+)*',
|
|
},
|
|
user_classes => {
|
|
description => "The objectclasses for users.",
|
|
type => 'string',
|
|
default => 'inetorgperson, posixaccount, person, user',
|
|
format => 'ldap-simple-attr-list',
|
|
optional => 1,
|
|
},
|
|
group_dn => {
|
|
description => "LDAP base domain name for group sync. If not set, the"
|
|
." base_dn will be used.",
|
|
type => 'string',
|
|
pattern => '\w+=[^,]+(,\s*\w+=[^,]+)*',
|
|
optional => 1,
|
|
maxLength => 256,
|
|
},
|
|
group_name_attr => {
|
|
description => "LDAP attribute representing a groups name. If not set"
|
|
." or found, the first value of the DN will be used as name.",
|
|
type => 'string',
|
|
format => 'ldap-simple-attr',
|
|
optional => 1,
|
|
maxLength => 256,
|
|
},
|
|
group_filter => {
|
|
description => "LDAP filter for group sync.",
|
|
type => 'string',
|
|
optional => 1,
|
|
maxLength => 2048,
|
|
},
|
|
group_classes => {
|
|
description => "The objectclasses for groups.",
|
|
type => 'string',
|
|
default => 'groupOfNames, group, univentionGroup, ipausergroup',
|
|
format => 'ldap-simple-attr-list',
|
|
optional => 1,
|
|
},
|
|
'sync-defaults-options' => {
|
|
description => "The default options for behavior of synchronizations.",
|
|
type => 'string',
|
|
format => 'realm-sync-options',
|
|
optional => 1,
|
|
},
|
|
};
|
|
}
|
|
|
|
sub options {
|
|
return {
|
|
server1 => {},
|
|
server2 => { optional => 1 },
|
|
base_dn => {},
|
|
bind_dn => { optional => 1 },
|
|
password => { optional => 1 },
|
|
user_attr => {},
|
|
port => { optional => 1 },
|
|
secure => { optional => 1 },
|
|
sslversion => { optional => 1 },
|
|
default => { optional => 1 },
|
|
comment => { optional => 1 },
|
|
tfa => { optional => 1 },
|
|
verify => { optional => 1 },
|
|
capath => { optional => 1 },
|
|
cert => { optional => 1 },
|
|
certkey => { optional => 1 },
|
|
filter => { optional => 1 },
|
|
sync_attributes => { optional => 1 },
|
|
user_classes => { optional => 1 },
|
|
group_dn => { optional => 1 },
|
|
group_name_attr => { optional => 1 },
|
|
group_filter => { optional => 1 },
|
|
group_classes => { optional => 1 },
|
|
'sync-defaults-options' => { optional => 1 },
|
|
};
|
|
}
|
|
|
|
sub connect_and_bind {
|
|
my ($class, $config, $realm) = @_;
|
|
|
|
my $servers = [$config->{server1}];
|
|
push @$servers, $config->{server2} if $config->{server2};
|
|
|
|
my $default_port = $config->{secure} ? 636: 389;
|
|
my $port = $config->{port} // $default_port;
|
|
my $scheme = $config->{secure} ? 'ldaps' : 'ldap';
|
|
|
|
my %ldap_args;
|
|
if ($config->{verify}) {
|
|
$ldap_args{verify} = 'require';
|
|
$ldap_args{clientcert} = $config->{cert} if $config->{cert};
|
|
$ldap_args{clientkey} = $config->{certkey} if $config->{certkey};
|
|
if (defined(my $capath = $config->{capath})) {
|
|
if (-d $capath) {
|
|
$ldap_args{capath} = $capath;
|
|
} else {
|
|
$ldap_args{cafile} = $capath;
|
|
}
|
|
}
|
|
} else {
|
|
$ldap_args{verify} = 'none';
|
|
}
|
|
|
|
if ($config->{secure}) {
|
|
$ldap_args{sslversion} = $config->{sslversion} || 'tlsv1_2';
|
|
}
|
|
|
|
my $ldap = PVE::LDAP::ldap_connect($servers, $scheme, $port, \%ldap_args);
|
|
|
|
my $bind_dn;
|
|
my $bind_pass;
|
|
|
|
if ($config->{bind_dn}) {
|
|
$bind_dn = $config->{bind_dn};
|
|
$bind_pass = ldap_get_credentials($realm);
|
|
die "missing password for realm $realm\n" if !defined($bind_pass);
|
|
}
|
|
|
|
PVE::LDAP::ldap_bind($ldap, $bind_dn, $bind_pass);
|
|
|
|
if (!$config->{base_dn}) {
|
|
my $root = $ldap->root_dse(attrs => [ 'defaultNamingContext' ]);
|
|
$config->{base_dn} = $root->get_value('defaultNamingContext');
|
|
}
|
|
|
|
return $ldap;
|
|
}
|
|
|
|
# returns:
|
|
# {
|
|
# 'username@realm' => {
|
|
# 'attr1' => 'value1',
|
|
# 'attr2' => 'value2',
|
|
# ...
|
|
# },
|
|
# ...
|
|
# }
|
|
#
|
|
# or in list context:
|
|
# (
|
|
# {
|
|
# 'username@realm' => {
|
|
# 'attr1' => 'value1',
|
|
# 'attr2' => 'value2',
|
|
# ...
|
|
# },
|
|
# ...
|
|
# },
|
|
# {
|
|
# 'uid=username,dc=....' => 'username@realm',
|
|
# ...
|
|
# }
|
|
# )
|
|
# the map of dn->username is needed for group membership sync
|
|
sub get_users {
|
|
my ($class, $config, $realm) = @_;
|
|
|
|
my $ldap = $class->connect_and_bind($config, $realm);
|
|
|
|
my $user_name_attr = $config->{user_attr} // 'uid';
|
|
my $ldap_attribute_map = {
|
|
$user_name_attr => 'username',
|
|
enable => 'enable',
|
|
expire => 'expire',
|
|
firstname => 'firstname',
|
|
lastname => 'lastname',
|
|
email => 'email',
|
|
comment => 'comment',
|
|
keys => 'keys',
|
|
};
|
|
|
|
foreach my $attr (PVE::Tools::split_list($config->{sync_attributes})) {
|
|
my ($ours, $ldap) = ($attr =~ m/^\s*(\w+)=(.*)\s*$/);
|
|
$ldap_attribute_map->{$ldap} = $ours;
|
|
}
|
|
|
|
my $filter = $config->{filter};
|
|
my $basedn = $config->{base_dn};
|
|
|
|
$config->{user_classes} //= 'inetorgperson, posixaccount, person, user';
|
|
my $classes = [PVE::Tools::split_list($config->{user_classes})];
|
|
|
|
my $users = PVE::LDAP::query_users($ldap, $filter, [keys %$ldap_attribute_map], $basedn, $classes);
|
|
|
|
my $ret = {};
|
|
my $dnmap = {};
|
|
|
|
foreach my $user (@$users) {
|
|
my $user_attributes = $user->{attributes};
|
|
my $userid = $user_attributes->{$user_name_attr}->[0];
|
|
my $username = "$userid\@$realm";
|
|
|
|
# we cannot sync usernames that do not meet our criteria
|
|
eval { PVE::Auth::Plugin::verify_username($username) };
|
|
if (my $err = $@) {
|
|
warn "$err";
|
|
next;
|
|
}
|
|
|
|
$ret->{$username} = {};
|
|
|
|
foreach my $attr (keys %$user_attributes) {
|
|
if (my $ours = $ldap_attribute_map->{$attr}) {
|
|
$ret->{$username}->{$ours} = $user_attributes->{$attr}->[0];
|
|
}
|
|
}
|
|
|
|
if (wantarray) {
|
|
my $dn = $user->{dn};
|
|
$dnmap->{$dn} = $username;
|
|
}
|
|
}
|
|
|
|
return wantarray ? ($ret, $dnmap) : $ret;
|
|
}
|
|
|
|
# needs a map for dn -> username, we get this from the get_users call
|
|
# otherwise we cannot determine the group membership
|
|
sub get_groups {
|
|
my ($class, $config, $realm, $dnmap) = @_;
|
|
|
|
my $filter = $config->{group_filter};
|
|
my $basedn = $config->{group_dn} // $config->{base_dn};
|
|
my $attr = $config->{group_name_attr};
|
|
$config->{group_classes} //= 'groupOfNames, group, univentionGroup, ipausergroup';
|
|
my $classes = [PVE::Tools::split_list($config->{group_classes})];
|
|
|
|
my $ldap = $class->connect_and_bind($config, $realm);
|
|
|
|
my $groups = PVE::LDAP::query_groups($ldap, $basedn, $classes, $filter, $attr);
|
|
|
|
my $ret = {};
|
|
|
|
foreach my $group (@$groups) {
|
|
my $name = $group->{name};
|
|
if (!$name && $group->{dn} =~ m/^[^=]+=([^,]+),/){
|
|
$name = PVE::Tools::trim($1);
|
|
}
|
|
if ($name) {
|
|
$name .= "-$realm";
|
|
|
|
# we cannot sync groups that do not meet our criteria
|
|
eval { PVE::AccessControl::verify_groupname($name) };
|
|
if (my $err = $@) {
|
|
warn "$err";
|
|
next;
|
|
}
|
|
|
|
$ret->{$name} = { users => {} };
|
|
foreach my $member (@{$group->{members}}) {
|
|
if (my $user = $dnmap->{$member}) {
|
|
$ret->{$name}->{users}->{$user} = 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return $ret;
|
|
}
|
|
|
|
sub authenticate_user {
|
|
my ($class, $config, $realm, $username, $password) = @_;
|
|
|
|
my $ldap = $class->connect_and_bind($config, $realm);
|
|
|
|
my $user_dn = PVE::LDAP::get_user_dn($ldap, $username, $config->{user_attr}, $config->{base_dn});
|
|
PVE::LDAP::auth_user_dn($ldap, $user_dn, $password);
|
|
|
|
$ldap->unbind();
|
|
return 1;
|
|
}
|
|
|
|
my $ldap_pw_dir = "/etc/pve/priv/realm";
|
|
|
|
sub ldap_cred_file_name {
|
|
my ($realmid) = @_;
|
|
return "${ldap_pw_dir}/${realmid}.pw";
|
|
}
|
|
|
|
sub get_cred_file {
|
|
my ($realmid) = @_;
|
|
|
|
my $cred_file = ldap_cred_file_name($realmid);
|
|
if (-e $cred_file) {
|
|
return $cred_file;
|
|
} elsif (-e "/etc/pve/priv/ldap/${realmid}.pw") {
|
|
# FIXME: remove fallback with 7.0 by doing a rename on upgrade from 6.x
|
|
return "/etc/pve/priv/ldap/${realmid}.pw";
|
|
}
|
|
|
|
return $cred_file;
|
|
}
|
|
|
|
sub ldap_set_credentials {
|
|
my ($password, $realmid) = @_;
|
|
|
|
my $cred_file = ldap_cred_file_name($realmid);
|
|
mkdir $ldap_pw_dir;
|
|
|
|
PVE::Tools::file_set_contents($cred_file, $password);
|
|
|
|
return $cred_file;
|
|
}
|
|
|
|
sub ldap_get_credentials {
|
|
my ($realmid) = @_;
|
|
|
|
if (my $cred_file = get_cred_file($realmid)) {
|
|
return PVE::Tools::file_read_firstline($cred_file);
|
|
}
|
|
return undef;
|
|
}
|
|
|
|
sub ldap_delete_credentials {
|
|
my ($realmid) = @_;
|
|
|
|
if (my $cred_file = get_cred_file($realmid)) {
|
|
unlink($cred_file) or warn "removing LDAP credentials '$cred_file' failed: $!\n";
|
|
}
|
|
}
|
|
|
|
sub on_add_hook {
|
|
my ($class, $realm, $config, %param) = @_;
|
|
|
|
if (defined($param{password})) {
|
|
ldap_set_credentials($param{password}, $realm);
|
|
} else {
|
|
ldap_delete_credentials($realm);
|
|
}
|
|
}
|
|
|
|
sub on_update_hook {
|
|
my ($class, $realm, $config, %param) = @_;
|
|
|
|
return if !exists($param{password});
|
|
|
|
if (defined($param{password})) {
|
|
ldap_set_credentials($param{password}, $realm);
|
|
} else {
|
|
ldap_delete_credentials($realm);
|
|
}
|
|
}
|
|
|
|
sub on_delete_hook {
|
|
my ($class, $realm, $config) = @_;
|
|
|
|
ldap_delete_credentials($realm);
|
|
}
|
|
|
|
1;
|