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Commit | Line | Data |
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5bb4e06a DM |
1 | package PVE::Auth::LDAP; |
2 | ||
3 | use strict; | |
7c410d63 DM |
4 | use warnings; |
5 | ||
b5040b42 | 6 | use PVE::Tools; |
5bb4e06a DM |
7 | use PVE::Auth::Plugin; |
8 | use Net::LDAP; | |
8b600c4d | 9 | use Net::IP; |
5bb4e06a DM |
10 | use base qw(PVE::Auth::Plugin); |
11 | ||
12 | sub type { | |
13 | return 'ldap'; | |
14 | } | |
15 | ||
16 | sub properties { | |
17 | return { | |
18 | base_dn => { | |
19 | description => "LDAP base domain name", | |
20 | type => 'string', | |
21 | pattern => '\w+=[^,]+(,\s*\w+=[^,]+)*', | |
22 | optional => 1, | |
23 | maxLength => 256, | |
24 | }, | |
25 | user_attr => { | |
26 | description => "LDAP user attribute name", | |
27 | type => 'string', | |
28 | pattern => '\S{2,}', | |
29 | optional => 1, | |
30 | maxLength => 256, | |
31 | }, | |
b5040b42 WB |
32 | bind_dn => { |
33 | description => "LDAP bind domain name", | |
34 | type => 'string', | |
35 | pattern => '\w+=[^,]+(,\s*\w+=[^,]+)*', | |
36 | optional => 1, | |
37 | maxLength => 256, | |
38 | }, | |
e03c2aef WB |
39 | verify => { |
40 | description => "Verify the server's SSL certificate", | |
41 | type => 'boolean', | |
42 | optional => 1, | |
43 | default => 0, | |
44 | }, | |
45 | capath => { | |
46 | description => "Path to the CA certificate store", | |
47 | type => 'string', | |
48 | optional => 1, | |
49 | default => '/etc/ssl/certs', | |
50 | }, | |
51 | cert => { | |
52 | description => "Path to the client certificate", | |
53 | type => 'string', | |
54 | optional => 1, | |
55 | }, | |
56 | certkey => { | |
57 | description => "Path to the client certificate key", | |
58 | type => 'string', | |
59 | optional => 1, | |
60 | }, | |
5bb4e06a DM |
61 | }; |
62 | } | |
63 | ||
64 | sub options { | |
65 | return { | |
66 | server1 => {}, | |
67 | server2 => { optional => 1 }, | |
68 | base_dn => {}, | |
b5040b42 | 69 | bind_dn => { optional => 1 }, |
5bb4e06a DM |
70 | user_attr => {}, |
71 | port => { optional => 1 }, | |
72 | secure => { optional => 1 }, | |
73 | default => { optional => 1 }, | |
74 | comment => { optional => 1 }, | |
96f8ebd6 | 75 | tfa => { optional => 1 }, |
e03c2aef WB |
76 | verify => { optional => 1 }, |
77 | capath => { optional => 1 }, | |
78 | cert => { optional => 1 }, | |
79 | certkey => { optional => 1 }, | |
5bb4e06a DM |
80 | }; |
81 | } | |
82 | ||
83 | my $authenticate_user_ldap = sub { | |
b5040b42 | 84 | my ($config, $server, $username, $password, $realm) = @_; |
5bb4e06a DM |
85 | |
86 | my $default_port = $config->{secure} ? 636: 389; | |
87 | my $port = $config->{port} ? $config->{port} : $default_port; | |
88 | my $scheme = $config->{secure} ? 'ldaps' : 'ldap'; | |
8b600c4d | 89 | $server = "[$server]" if Net::IP::ip_is_ipv6($server); |
5bb4e06a DM |
90 | my $conn_string = "$scheme://${server}:$port"; |
91 | ||
e03c2aef WB |
92 | my %ldap_args; |
93 | if ($config->{verify}) { | |
94 | $ldap_args{verify} = 'require'; | |
95 | if (defined(my $cert = $config->{cert})) { | |
96 | $ldap_args{clientcert} = $cert; | |
97 | } | |
98 | if (defined(my $key = $config->{certkey})) { | |
99 | $ldap_args{clientkey} = $key; | |
100 | } | |
101 | if (defined(my $capath = $config->{capath})) { | |
102 | if (-d $capath) { | |
103 | $ldap_args{capath} = $capath; | |
104 | } else { | |
105 | $ldap_args{cafile} = $capath; | |
106 | } | |
107 | } | |
108 | } else { | |
109 | $ldap_args{verify} = 'none'; | |
110 | } | |
111 | ||
112 | my $ldap = Net::LDAP->new($conn_string, %ldap_args) || die "$@\n"; | |
b5040b42 WB |
113 | |
114 | if (my $bind_dn = $config->{bind_dn}) { | |
115 | my $bind_pass = PVE::Tools::file_read_firstline("/etc/pve/priv/ldap/${realm}.pw"); | |
116 | die "missing password for realm $realm\n" if !defined($bind_pass); | |
117 | my $res = $ldap->bind($bind_dn, password => $bind_pass); | |
118 | my $code = $res->code(); | |
119 | my $err = $res->error; | |
120 | die "failed to authenticate to ldap service: $err\n" if ($code); | |
121 | } | |
122 | ||
5bb4e06a DM |
123 | my $search = $config->{user_attr} . "=" . $username; |
124 | my $result = $ldap->search( base => "$config->{base_dn}", | |
125 | scope => "sub", | |
126 | filter => "$search", | |
127 | attrs => ['dn'] | |
128 | ); | |
129 | die "no entries returned\n" if !$result->entries; | |
130 | my @entries = $result->entries; | |
131 | my $res = $ldap->bind($entries[0]->dn, password => $password); | |
132 | ||
133 | my $code = $res->code(); | |
134 | my $err = $res->error; | |
135 | ||
136 | $ldap->unbind(); | |
137 | ||
138 | die "$err\n" if ($code); | |
139 | }; | |
140 | ||
141 | sub authenticate_user { | |
142 | my ($class, $config, $realm, $username, $password) = @_; | |
143 | ||
b5040b42 | 144 | eval { &$authenticate_user_ldap($config, $config->{server1}, $username, $password, $realm); }; |
5bb4e06a DM |
145 | my $err = $@; |
146 | return 1 if !$err; | |
147 | die $err if !$config->{server2}; | |
148 | &$authenticate_user_ldap($config, $config->{server2}, $username, $password); | |
149 | } | |
150 | ||
151 | 1; |