1 package PVE
::AccessControl
;
6 use Crypt
::OpenSSL
::Random
;
7 use Crypt
::OpenSSL
::RSA
;
11 use MIME
::Base32
; #libmime-base32-perl
17 use PVE
::Tools
qw(run_command lock_file file_get_contents split_list safe_print);
18 use PVE
::Cluster
qw(cfs_register_file cfs_read_file cfs_write_file cfs_lock_file);
21 use PVE
::Auth
::Plugin
;
27 use Data
::Dumper
; # fixme: remove
29 # load and initialize all plugins
31 PVE
::Auth
::AD-
>register();
32 PVE
::Auth
::LDAP-
>register();
33 PVE
::Auth
::PVE-
>register();
34 PVE
::Auth
::PAM-
>register();
35 PVE
::Auth
::Plugin-
>init();
37 # $authdir must be writable by root only!
38 my $confdir = "/etc/pve";
39 my $authdir = "$confdir/priv";
40 my $authprivkeyfn = "$authdir/authkey.key";
41 my $authpubkeyfn = "$confdir/authkey.pub";
42 my $pve_www_key_fn = "$confdir/pve-www.key";
44 my $ticket_lifetime = 3600*2; # 2 hours
46 Crypt
::OpenSSL
::RSA-
>import_random_seed();
48 cfs_register_file
('user.cfg',
54 PVE
::Auth
::Plugin
::verify_username
(@_);
57 sub pve_verify_realm
{
58 PVE
::Auth
::Plugin
::pve_verify_realm
(@_);
61 sub lock_user_config
{
62 my ($code, $errmsg) = @_;
64 cfs_lock_file
("user.cfg", undef, $code);
66 $errmsg ?
die "$errmsg: $err" : die $err;
73 return $pve_auth_pub_key if $pve_auth_pub_key;
75 my $input = PVE
::Tools
::file_get_contents
($authpubkeyfn);
77 $pve_auth_pub_key = Crypt
::OpenSSL
::RSA-
>new_public_key($input);
79 return $pve_auth_pub_key;
82 my $csrf_prevention_secret;
83 my $get_csrfr_secret = sub {
84 if (!$csrf_prevention_secret) {
85 my $input = PVE
::Tools
::file_get_contents
($pve_www_key_fn);
86 $csrf_prevention_secret = Digest
::SHA
::sha1_base64
($input);
88 return $csrf_prevention_secret;
91 sub assemble_csrf_prevention_token
{
94 my $secret = &$get_csrfr_secret();
96 return PVE
::Ticket
::assemble_csrf_prevention_token
($secret, $username);
99 sub verify_csrf_prevention_token
{
100 my ($username, $token, $noerr) = @_;
102 my $secret = &$get_csrfr_secret();
104 return PVE
::Ticket
::verify_csrf_prevention_token
(
105 $secret, $username, $token, -300, $ticket_lifetime, $noerr);
108 my $pve_auth_priv_key;
111 return $pve_auth_priv_key if $pve_auth_priv_key;
113 my $input = PVE
::Tools
::file_get_contents
($authprivkeyfn);
115 $pve_auth_priv_key = Crypt
::OpenSSL
::RSA-
>new_private_key($input);
117 return $pve_auth_priv_key;
120 sub assemble_ticket
{
123 my $rsa_priv = get_privkey
();
125 return PVE
::Ticket
::assemble_rsa_ticket
($rsa_priv, 'PVE', $username);
129 my ($ticket, $noerr) = @_;
131 my $rsa_pub = get_pubkey
();
133 my ($username, $age) = PVE
::Ticket
::verify_rsa_ticket
(
134 $rsa_pub, 'PVE', $ticket, undef, -300, $ticket_lifetime, $noerr);
136 return undef if $noerr && !defined($username);
138 return undef if !PVE
::Auth
::Plugin
::verify_username
($username, $noerr);
140 return wantarray ?
($username, $age) : $username;
144 # - they do not contain the username in plain text
145 # - they are restricted to a specific resource path (example: '/vms/100')
146 sub assemble_vnc_ticket
{
147 my ($username, $path) = @_;
149 my $rsa_priv = get_privkey
();
151 $path = normalize_path
($path);
153 my $secret_data = "$username:$path";
155 return PVE
::Ticket
::assemble_rsa_ticket
(
156 $rsa_priv, 'PVEVNC', undef, $secret_data);
159 sub verify_vnc_ticket
{
160 my ($ticket, $username, $path, $noerr) = @_;
162 my $rsa_pub = get_pubkey
();
164 my $secret_data = "$username:$path";
166 return PVE
::Ticket
::verify_rsa_ticket
(
167 $rsa_pub, 'PVEVNC', $ticket, $secret_data, -20, 40, $noerr);
170 sub assemble_spice_ticket
{
171 my ($username, $vmid, $node) = @_;
173 my $secret = &$get_csrfr_secret();
175 return PVE
::Ticket
::assemble_spice_ticket
(
176 $secret, $username, $vmid, $node);
180 sub verify_spice_connect_url
{
181 my ($connect_str) = @_;
183 my $secret = &$get_csrfr_secret();
185 return PVE
::Ticket
::verify_spice_connect_url
($secret, $connect_str);
188 sub read_x509_subject_spice
{
192 my $bio = Net
::SSLeay
::BIO_new_file
($filename, 'r');
193 die "Could not open $filename using OpenSSL\n"
196 my $x509 = Net
::SSLeay
::PEM_read_bio_X509
($bio);
197 Net
::SSLeay
::BIO_free
($bio);
199 die "Could not parse X509 certificate in $filename\n"
202 my $nameobj = Net
::SSLeay
::X509_get_subject_name
($x509);
203 my $subject = Net
::SSLeay
::X509_NAME_oneline
($nameobj);
204 Net
::SSLeay
::X509_free
($x509);
206 # remote-viewer wants comma as seperator (not '/')
208 $subject =~ s!/(\w+=)!,$1!g;
213 # helper to generate SPICE remote-viewer configuration
214 sub remote_viewer_config
{
215 my ($authuser, $vmid, $node, $proxy, $title, $port) = @_;
218 my $host = `hostname -f` || PVE
::INotify
::nodename
();
223 my ($ticket, $proxyticket) = assemble_spice_ticket
($authuser, $vmid, $node);
225 my $filename = "/etc/pve/local/pve-ssl.pem";
226 my $subject = read_x509_subject_spice
($filename);
228 my $cacert = PVE
::Tools
::file_get_contents
("/etc/pve/pve-root-ca.pem", 8192);
229 $cacert =~ s/\n/\\n/g;
231 $proxy = "[$proxy]" if Net
::IP
::ip_is_ipv6
($proxy);
233 'secure-attention' => "Ctrl+Alt+Ins",
234 'toggle-fullscreen' => "Shift+F11",
235 'release-cursor' => "Ctrl+Alt+R",
238 host
=> $proxyticket, # this breaks tls hostname verification, so we need to use 'host-subject'
239 proxy
=> "http://$proxy:3128",
241 'host-subject' => $subject,
244 'delete-this-file' => 1,
247 return ($ticket, $proxyticket, $config);
250 sub check_user_exist
{
251 my ($usercfg, $username, $noerr) = @_;
253 $username = PVE
::Auth
::Plugin
::verify_username
($username, $noerr);
254 return undef if !$username;
256 return $usercfg->{users
}->{$username} if $usercfg && $usercfg->{users
}->{$username};
258 die "no such user ('$username')\n" if !$noerr;
263 sub check_user_enabled
{
264 my ($usercfg, $username, $noerr) = @_;
266 my $data = check_user_exist
($usercfg, $username, $noerr);
267 return undef if !$data;
269 return 1 if $data->{enable
};
271 die "user '$username' is disabled\n" if !$noerr;
276 sub verify_one_time_pw
{
277 my ($usercfg, $username, $tfa_cfg, $otp) = @_;
279 my $type = $tfa_cfg->{type
};
281 die "missing one time password for two-factor authentication '$type'\n" if !$otp;
283 # fixme: proxy support?
286 if ($type eq 'yubico') {
287 my $keys = $usercfg->{users
}->{$username}->{keys};
288 yubico_verify_otp
($otp, $keys, $tfa_cfg->{url
}, $tfa_cfg->{id
}, $tfa_cfg->{key
}, $proxy);
289 } elsif ($type eq 'oath') {
290 my $keys = $usercfg->{users
}->{$username}->{keys};
291 oath_verify_otp
($otp, $keys, $tfa_cfg->{step
}, $tfa_cfg->{digits
});
293 die "unknown tfa type '$type'\n";
297 # password should be utf8 encoded
298 # Note: some plugins delay/sleep if auth fails
299 sub authenticate_user
{
300 my ($username, $password, $otp) = @_;
302 die "no username specified\n" if !$username;
306 ($username, $ruid, $realm) = PVE
::Auth
::Plugin
::verify_username
($username);
308 my $usercfg = cfs_read_file
('user.cfg');
310 check_user_enabled
($usercfg, $username);
313 my $expire = $usercfg->{users
}->{$username}->{expire
};
315 die "account expired\n" if $expire && ($expire < $ctime);
317 my $domain_cfg = cfs_read_file
('domains.cfg');
319 my $cfg = $domain_cfg->{ids
}->{$realm};
320 die "auth domain '$realm' does not exists\n" if !$cfg;
321 my $plugin = PVE
::Auth
::Plugin-
>lookup($cfg->{type
});
322 $plugin->authenticate_user($cfg, $realm, $ruid, $password);
325 my $tfa_cfg = PVE
::Auth
::Plugin
::parse_tfa_config
($cfg->{tfa
});
326 verify_one_time_pw
($usercfg, $username, $tfa_cfg, $otp);
332 sub domain_set_password
{
333 my ($realm, $username, $password) = @_;
335 die "no auth domain specified" if !$realm;
337 my $domain_cfg = cfs_read_file
('domains.cfg');
339 my $cfg = $domain_cfg->{ids
}->{$realm};
340 die "auth domain '$realm' does not exist\n" if !$cfg;
341 my $plugin = PVE
::Auth
::Plugin-
>lookup($cfg->{type
});
342 $plugin->store_password($cfg, $realm, $username, $password);
346 my ($username, $usercfg, $group) = @_;
348 $usercfg->{users
}->{$username}->{groups
}->{$group} = 1;
349 $usercfg->{groups
}->{$group}->{users
}->{$username} = 1;
352 sub delete_user_group
{
353 my ($username, $usercfg) = @_;
355 foreach my $group (keys %{$usercfg->{groups
}}) {
357 delete ($usercfg->{groups
}->{$group}->{users
}->{$username})
358 if $usercfg->{groups
}->{$group}->{users
}->{$username};
362 sub delete_user_acl
{
363 my ($username, $usercfg) = @_;
365 foreach my $acl (keys %{$usercfg->{acl
}}) {
367 delete ($usercfg->{acl
}->{$acl}->{users
}->{$username})
368 if $usercfg->{acl
}->{$acl}->{users
}->{$username};
372 sub delete_group_acl
{
373 my ($group, $usercfg) = @_;
375 foreach my $acl (keys %{$usercfg->{acl
}}) {
377 delete ($usercfg->{acl
}->{$acl}->{groups
}->{$group})
378 if $usercfg->{acl
}->{$acl}->{groups
}->{$group};
382 sub delete_pool_acl
{
383 my ($pool, $usercfg) = @_;
385 my $path = "/pool/$pool";
387 delete ($usercfg->{acl
}->{$path})
390 # we automatically create some predefined roles by splitting privs
391 # into 3 groups (per category)
392 # root: only root is allowed to do that
393 # admin: an administrator can to that
394 # user: a normal user/customer can to that
404 'VM.Config.Options', # covers all other things
412 'VM.Config.CDROM', # change CDROM media
424 'Sys.Modify', # edit/change node settings
427 'Permissions.Modify',
439 'Datastore.Allocate',
440 'Datastore.AllocateTemplate',
443 'Datastore.AllocateSpace',
455 'Group.Allocate', # edit/change group settings
456 'Realm.AllocateUser',
464 'Pool.Allocate', # create/delete pools
471 my $valid_privs = {};
473 my $special_roles = {
474 'NoAccess' => {}, # no privileges
475 'Administrator' => $valid_privs, # all privileges
480 foreach my $cat (keys %$privgroups) {
481 my $cd = $privgroups->{$cat};
482 foreach my $p (@{$cd->{root
}}, @{$cd->{admin
}},
483 @{$cd->{user
}}, @{$cd->{audit
}}) {
484 $valid_privs->{$p} = 1;
486 foreach my $p (@{$cd->{admin
}}, @{$cd->{user
}}, @{$cd->{audit
}}) {
488 $special_roles->{"PVE${cat}Admin"}->{$p} = 1;
489 $special_roles->{"PVEAdmin"}->{$p} = 1;
491 if (scalar(@{$cd->{user
}})) {
492 foreach my $p (@{$cd->{user
}}, @{$cd->{audit
}}) {
493 $special_roles->{"PVE${cat}User"}->{$p} = 1;
496 foreach my $p (@{$cd->{audit
}}) {
497 $special_roles->{"PVEAuditor"}->{$p} = 1;
501 $special_roles->{"PVETemplateUser"} = { 'VM.Clone' => 1, 'VM.Audit' => 1 };
507 my ($role, $usercfg, $privs) = @_;
511 die "role '$role' does not exist\n" if !$usercfg->{roles
}->{$role};
513 foreach my $priv (split_list
($privs)) {
514 if (defined ($valid_privs->{$priv})) {
515 $usercfg->{roles
}->{$role}->{$priv} = 1;
517 die "invalid privilege '$priv'\n";
529 $path = '/' if !$path;
531 $path = "/$path" if $path !~ m
|^/|;
533 return undef if $path !~ m
|^[[:alnum
:]\
.\
-\_\
/]+$|;
539 PVE
::JSONSchema
::register_format
('pve-groupid', \
&verify_groupname
);
540 sub verify_groupname
{
541 my ($groupname, $noerr) = @_;
543 if ($groupname !~ m/^[A-Za-z0-9\.\-_]+$/) {
545 die "group name '$groupname' contains invalid characters\n" if !$noerr;
553 PVE
::JSONSchema
::register_format
('pve-roleid', \
&verify_rolename
);
554 sub verify_rolename
{
555 my ($rolename, $noerr) = @_;
557 if ($rolename !~ m/^[A-Za-z0-9\.\-_]+$/) {
559 die "role name '$rolename' contains invalid characters\n" if !$noerr;
567 PVE
::JSONSchema
::register_format
('pve-poolid', \
&verify_groupname
);
568 sub verify_poolname
{
569 my ($poolname, $noerr) = @_;
571 if ($poolname !~ m/^[A-Za-z0-9\.\-_]+$/) {
573 die "pool name '$poolname' contains invalid characters\n" if !$noerr;
581 PVE
::JSONSchema
::register_format
('pve-priv', \
&verify_privname
);
582 sub verify_privname
{
583 my ($priv, $noerr) = @_;
585 if (!$valid_privs->{$priv}) {
586 die "invalid privilege '$priv'\n" if !$noerr;
594 sub userconfig_force_defaults
{
597 foreach my $r (keys %$special_roles) {
598 $cfg->{roles
}->{$r} = $special_roles->{$r};
601 # add root user if not exists
602 if (!$cfg->{users
}->{'root@pam'}) {
603 $cfg->{users
}->{'root@pam'}->{enable
} = 1;
607 sub parse_user_config
{
608 my ($filename, $raw) = @_;
612 userconfig_force_defaults
($cfg);
614 $raw = '' if !defined($raw);
615 while ($raw =~ /^\s*(.+?)\s*$/gm) {
619 foreach my $d (split (/:/, $line)) {
625 my $et = shift @data;
628 my ($user, $enable, $expire, $firstname, $lastname, $email, $comment, $keys) = @data;
630 my (undef, undef, $realm) = PVE
::Auth
::Plugin
::verify_username
($user, 1);
632 warn "user config - ignore user '$user' - invalid user name\n";
636 $enable = $enable ?
1 : 0;
638 $expire = 0 if !$expire;
640 if ($expire !~ m/^\d+$/) {
641 warn "user config - ignore user '$user' - (illegal characters in expire '$expire')\n";
644 $expire = int($expire);
646 #if (!verify_groupname ($group, 1)) {
647 # warn "user config - ignore user '$user' - invalid characters in group name\n";
651 $cfg->{users
}->{$user} = {
655 $cfg->{users
}->{$user}->{firstname
} = PVE
::Tools
::decode_text
($firstname) if $firstname;
656 $cfg->{users
}->{$user}->{lastname
} = PVE
::Tools
::decode_text
($lastname) if $lastname;
657 $cfg->{users
}->{$user}->{email
} = $email;
658 $cfg->{users
}->{$user}->{comment
} = PVE
::Tools
::decode_text
($comment) if $comment;
659 $cfg->{users
}->{$user}->{expire
} = $expire;
660 # keys: allowed yubico key ids or oath secrets (base32 encoded)
661 $cfg->{users
}->{$user}->{keys} = $keys if $keys;
663 #$cfg->{users}->{$user}->{groups}->{$group} = 1;
664 #$cfg->{groups}->{$group}->{$user} = 1;
666 } elsif ($et eq 'group') {
667 my ($group, $userlist, $comment) = @data;
669 if (!verify_groupname
($group, 1)) {
670 warn "user config - ignore group '$group' - invalid characters in group name\n";
674 # make sure to add the group (even if there are no members)
675 $cfg->{groups
}->{$group} = { users
=> {} } if !$cfg->{groups
}->{$group};
677 $cfg->{groups
}->{$group}->{comment
} = PVE
::Tools
::decode_text
($comment) if $comment;
679 foreach my $user (split_list
($userlist)) {
681 if (!PVE
::Auth
::Plugin
::verify_username
($user, 1)) {
682 warn "user config - ignore invalid group member '$user'\n";
686 if ($cfg->{users
}->{$user}) { # user exists
687 $cfg->{users
}->{$user}->{groups
}->{$group} = 1;
688 $cfg->{groups
}->{$group}->{users
}->{$user} = 1;
690 warn "user config - ignore invalid group member '$user'\n";
694 } elsif ($et eq 'role') {
695 my ($role, $privlist) = @data;
697 if (!verify_rolename
($role, 1)) {
698 warn "user config - ignore role '$role' - invalid characters in role name\n";
702 # make sure to add the role (even if there are no privileges)
703 $cfg->{roles
}->{$role} = {} if !$cfg->{roles
}->{$role};
705 foreach my $priv (split_list
($privlist)) {
706 if (defined ($valid_privs->{$priv})) {
707 $cfg->{roles
}->{$role}->{$priv} = 1;
709 warn "user config - ignore invalid priviledge '$priv'\n";
713 } elsif ($et eq 'acl') {
714 my ($propagate, $pathtxt, $uglist, $rolelist) = @data;
716 if (my $path = normalize_path
($pathtxt)) {
717 foreach my $role (split_list
($rolelist)) {
719 if (!verify_rolename
($role, 1)) {
720 warn "user config - ignore invalid role name '$role' in acl\n";
724 foreach my $ug (split_list
($uglist)) {
725 if ($ug =~ m/^@(\S+)$/) {
727 if ($cfg->{groups
}->{$group}) { # group exists
728 $cfg->{acl
}->{$path}->{groups
}->{$group}->{$role} = $propagate;
730 warn "user config - ignore invalid acl group '$group'\n";
732 } elsif (PVE
::Auth
::Plugin
::verify_username
($ug, 1)) {
733 if ($cfg->{users
}->{$ug}) { # user exists
734 $cfg->{acl
}->{$path}->{users
}->{$ug}->{$role} = $propagate;
736 warn "user config - ignore invalid acl member '$ug'\n";
739 warn "user config - invalid user/group '$ug' in acl\n";
744 warn "user config - ignore invalid path in acl '$pathtxt'\n";
746 } elsif ($et eq 'pool') {
747 my ($pool, $comment, $vmlist, $storelist) = @data;
749 if (!verify_poolname
($pool, 1)) {
750 warn "user config - ignore pool '$pool' - invalid characters in pool name\n";
754 # make sure to add the pool (even if there are no members)
755 $cfg->{pools
}->{$pool} = { vms
=> {}, storage
=> {} } if !$cfg->{pools
}->{$pool};
757 $cfg->{pools
}->{$pool}->{comment
} = PVE
::Tools
::decode_text
($comment) if $comment;
759 foreach my $vmid (split_list
($vmlist)) {
760 if ($vmid !~ m/^\d+$/) {
761 warn "user config - ignore invalid vmid '$vmid' in pool '$pool'\n";
766 if ($cfg->{vms
}->{$vmid}) {
767 warn "user config - ignore duplicate vmid '$vmid' in pool '$pool'\n";
771 $cfg->{pools
}->{$pool}->{vms
}->{$vmid} = 1;
773 # record vmid ==> pool relation
774 $cfg->{vms
}->{$vmid} = $pool;
777 foreach my $storeid (split_list
($storelist)) {
778 if ($storeid !~ m/^[a-z][a-z0-9\-\_\.]*[a-z0-9]$/i) {
779 warn "user config - ignore invalid storage '$storeid' in pool '$pool'\n";
782 $cfg->{pools
}->{$pool}->{storage
}->{$storeid} = 1;
785 warn "user config - ignore config line: $line\n";
789 userconfig_force_defaults
($cfg);
794 sub write_user_config
{
795 my ($filename, $cfg) = @_;
799 foreach my $user (keys %{$cfg->{users
}}) {
800 my $d = $cfg->{users
}->{$user};
801 my $firstname = $d->{firstname
} ? PVE
::Tools
::encode_text
($d->{firstname
}) : '';
802 my $lastname = $d->{lastname
} ? PVE
::Tools
::encode_text
($d->{lastname
}) : '';
803 my $email = $d->{email
} || '';
804 my $comment = $d->{comment
} ? PVE
::Tools
::encode_text
($d->{comment
}) : '';
805 my $expire = int($d->{expire
} || 0);
806 my $enable = $d->{enable
} ?
1 : 0;
807 my $keys = $d->{keys} ?
$d->{keys} : '';
808 $data .= "user:$user:$enable:$expire:$firstname:$lastname:$email:$comment:$keys:\n";
813 foreach my $group (keys %{$cfg->{groups
}}) {
814 my $d = $cfg->{groups
}->{$group};
815 my $list = join (',', keys %{$d->{users
}});
816 my $comment = $d->{comment
} ? PVE
::Tools
::encode_text
($d->{comment
}) : '';
817 $data .= "group:$group:$list:$comment:\n";
822 foreach my $pool (keys %{$cfg->{pools
}}) {
823 my $d = $cfg->{pools
}->{$pool};
824 my $vmlist = join (',', keys %{$d->{vms
}});
825 my $storelist = join (',', keys %{$d->{storage
}});
826 my $comment = $d->{comment
} ? PVE
::Tools
::encode_text
($d->{comment
}) : '';
827 $data .= "pool:$pool:$comment:$vmlist:$storelist:\n";
832 foreach my $role (keys %{$cfg->{roles
}}) {
833 next if $special_roles->{$role};
835 my $d = $cfg->{roles
}->{$role};
836 my $list = join (',', keys %$d);
837 $data .= "role:$role:$list:\n";
842 foreach my $path (sort keys %{$cfg->{acl
}}) {
843 my $d = $cfg->{acl
}->{$path};
847 foreach my $group (keys %{$d->{groups
}}) {
850 foreach my $role (sort keys %{$d->{groups
}->{$group}}) {
851 my $propagate = $d->{groups
}->{$group}->{$role};
860 $ra->{0}->{$l0}->{"\@$group"} = 1 if $l0;
861 $ra->{1}->{$l1}->{"\@$group"} = 1 if $l1;
864 foreach my $user (keys %{$d->{users
}}) {
865 # no need to save, because root is always 'Administrator'
866 next if $user eq 'root@pam';
870 foreach my $role (sort keys %{$d->{users
}->{$user}}) {
871 my $propagate = $d->{users
}->{$user}->{$role};
880 $ra->{0}->{$l0}->{$user} = 1 if $l0;
881 $ra->{1}->{$l1}->{$user} = 1 if $l1;
884 foreach my $rolelist (sort keys %{$ra->{0}}) {
885 my $uglist = join (',', keys %{$ra->{0}->{$rolelist}});
886 $data .= "acl:0:$path:$uglist:$rolelist:\n";
888 foreach my $rolelist (sort keys %{$ra->{1}}) {
889 my $uglist = join (',', keys %{$ra->{1}->{$rolelist}});
890 $data .= "acl:1:$path:$uglist:$rolelist:\n";
898 my ($cfg, $user, $path) = @_;
900 # NOTE: we do not consider pools here.
901 # You need to use $rpcenv->roles() instead if you want that.
903 return 'Administrator' if $user eq 'root@pam'; # root can do anything
907 foreach my $p (sort keys %{$cfg->{acl
}}) {
908 my $final = ($path eq $p);
910 next if !(($p eq '/') || $final || ($path =~ m
|^$p/|));
912 my $acl = $cfg->{acl
}->{$p};
914 #print "CHECKACL $path $p\n";
915 #print "ACL $path = " . Dumper ($acl);
917 if (my $ri = $acl->{users
}->{$user}) {
919 foreach my $role (keys %$ri) {
920 my $propagate = $ri->{$role};
921 if ($final || $propagate) {
922 #print "APPLY ROLE $p $user $role\n";
928 $perm = $new; # overwrite previous settings
929 next; # user privs always override group privs
934 foreach my $g (keys %{$acl->{groups
}}) {
935 next if !$cfg->{groups
}->{$g}->{users
}->{$user};
936 if (my $ri = $acl->{groups
}->{$g}) {
937 foreach my $role (keys %$ri) {
938 my $propagate = $ri->{$role};
939 if ($final || $propagate) {
940 #print "APPLY ROLE $p \@$g $role\n";
948 $perm = $new; # overwrite previous settings
953 return ('NoAccess') if defined ($perm->{NoAccess
});
954 #return () if defined ($perm->{NoAccess});
956 #print "permission $user $path = " . Dumper ($perm);
958 my @ra = keys %$perm;
960 #print "roles $user $path = " . join (',', @ra) . "\n";
966 my ($cfg, $user, $path) = @_;
968 $user = PVE
::Auth
::Plugin
::verify_username
($user, 1);
971 my @ra = roles
($cfg, $user, $path);
975 foreach my $role (@ra) {
976 if (my $privset = $cfg->{roles
}->{$role}) {
977 foreach my $p (keys %$privset) {
983 #print "priviledges $user $path = " . Dumper ($privs);
988 sub check_permissions
{
989 my ($username, $path, $privlist) = @_;
991 $path = normalize_path
($path);
992 my $usercfg = cfs_read_file
('user.cfg');
993 my $perm = permission
($usercfg, $username, $path);
995 foreach my $priv (split_list
($privlist)) {
996 return undef if !$perm->{$priv};
1002 sub remove_vm_access
{
1004 my $delVMaccessFn = sub {
1005 my $usercfg = cfs_read_file
("user.cfg");
1008 if (my $acl = $usercfg->{acl
}->{"/vms/$vmid"}) {
1009 delete $usercfg->{acl
}->{"/vms/$vmid"};
1012 if (my $pool = $usercfg->{vms
}->{$vmid}) {
1013 if (my $data = $usercfg->{pools
}->{$pool}) {
1014 delete $data->{vms
}->{$vmid};
1015 delete $usercfg->{vms
}->{$vmid};
1019 cfs_write_file
("user.cfg", $usercfg) if $modified;
1022 lock_user_config
($delVMaccessFn, "access permissions cleanup for VM $vmid failed");
1025 sub remove_storage_access
{
1028 my $deleteStorageAccessFn = sub {
1029 my $usercfg = cfs_read_file
("user.cfg");
1032 if (my $storage = $usercfg->{acl
}->{"/storage/$storeid"}) {
1033 delete $usercfg->{acl
}->{"/storage/$storeid"};
1036 foreach my $pool (keys %{$usercfg->{pools
}}) {
1037 delete $usercfg->{pools
}->{$pool}->{storage
}->{$storeid};
1040 cfs_write_file
("user.cfg", $usercfg) if $modified;
1043 lock_user_config
($deleteStorageAccessFn,
1044 "access permissions cleanup for storage $storeid failed");
1047 sub add_vm_to_pool
{
1048 my ($vmid, $pool) = @_;
1050 my $addVMtoPoolFn = sub {
1051 my $usercfg = cfs_read_file
("user.cfg");
1052 if (my $data = $usercfg->{pools
}->{$pool}) {
1053 $data->{vms
}->{$vmid} = 1;
1054 $usercfg->{vms
}->{$vmid} = $pool;
1055 cfs_write_file
("user.cfg", $usercfg);
1059 lock_user_config
($addVMtoPoolFn, "can't add VM $vmid to pool '$pool'");
1062 sub remove_vm_from_pool
{
1065 my $delVMfromPoolFn = sub {
1066 my $usercfg = cfs_read_file
("user.cfg");
1067 if (my $pool = $usercfg->{vms
}->{$vmid}) {
1068 if (my $data = $usercfg->{pools
}->{$pool}) {
1069 delete $data->{vms
}->{$vmid};
1070 delete $usercfg->{vms
}->{$vmid};
1071 cfs_write_file
("user.cfg", $usercfg);
1076 lock_user_config
($delVMfromPoolFn, "pool cleanup for VM $vmid failed");
1082 my ($binsecret, $number, $digits) = @_;
1084 $digits = 6 if !defined($digits);
1086 my $bincounter = pack('Q>', $number);
1087 my $hmac = Digest
::SHA
::hmac_sha1
($bincounter, $binsecret);
1089 my $offset = unpack('C', substr($hmac,19) & pack('C', 0x0F));
1090 my $part = substr($hmac, $offset, 4);
1091 my $otp = unpack('N', $part);
1092 my $value = ($otp & 0x7fffffff) % (10**$digits);
1093 return sprintf("%0${digits}d", $value);
1096 # experimental code for yubico OTP verification
1098 sub yubico_compute_param_sig
{
1099 my ($param, $api_key) = @_;
1102 foreach my $key (sort keys %$param) {
1103 $paramstr .= '&' if $paramstr;
1104 $paramstr .= "$key=$param->{$key}";
1107 # hmac_sha1_base64 does not add '=' padding characters, so we use encode_base64
1108 my $sig = uri_escape
(encode_base64
(Digest
::SHA
::hmac_sha1
($paramstr, decode_base64
($api_key || '')), ''));
1110 return ($paramstr, $sig);
1113 sub yubico_verify_otp
{
1114 my ($otp, $keys, $url, $api_id, $api_key, $proxy) = @_;
1116 die "yubico: missing password\n" if !defined($otp);
1117 die "yubico: missing API ID\n" if !defined($api_id);
1118 die "yubico: missing API KEY\n" if !defined($api_key);
1119 die "yubico: no associated yubico keys\n" if $keys =~ m/^\s+$/;
1121 die "yubico: wrong OTP length\n" if (length($otp) < 32) || (length($otp) > 48);
1123 $url = 'http://api2.yubico.com/wsapi/2.0/verify' if !defined($url);
1126 nonce
=> Digest
::SHA
::hmac_sha1_hex
(time(), rand()),
1128 otp
=> uri_escape
($otp),
1132 my ($paramstr, $sig) = yubico_compute_param_sig
($params, $api_key);
1134 $paramstr .= "&h=$sig" if $api_key;
1136 my $req = HTTP
::Request-
>new('GET' => "$url?$paramstr");
1138 my $ua = LWP
::UserAgent-
>new(protocols_allowed
=> ['http', 'https'], timeout
=> 30);
1141 $ua->proxy(['http', 'https'], $proxy);
1146 my $response = $ua->request($req);
1147 my $code = $response->code;
1150 my $msg = $response->message || 'unknown';
1151 die "Invalid response from server: $code $msg\n";
1154 my $raw = $response->decoded_content;
1157 foreach my $kvpair (split(/\n/, $raw)) {
1159 if($kvpair =~ /^\S+=/) {
1160 my ($k, $v) = split(/=/, $kvpair, 2);
1166 my $rsig = $result->{h
};
1167 delete $result->{h
};
1170 my ($datastr, $vsig) = yubico_compute_param_sig
($result, $api_key);
1171 $vsig = uri_unescape
($vsig);
1172 die "yubico: result signature verification failed\n" if $rsig ne $vsig;
1175 die "yubico auth failed: $result->{status}\n" if $result->{status
} ne 'OK';
1177 my $publicid = $result->{publicid
} = substr(lc($result->{otp
}), 0, 12);
1180 foreach my $k (PVE
::Tools
::split_list
($keys)) {
1181 if ($k eq $publicid) {
1187 die "yubico auth failed: key does not belong to user\n" if !$found;
1192 sub oath_verify_otp
{
1193 my ($otp, $keys, $step, $digits) = @_;
1195 die "oath: missing password\n" if !defined($otp);
1196 die "oath: no associated oath keys\n" if $keys =~ m/^\s+$/;
1198 $step = 30 if !$step;
1199 $digits = 6 if !$digits;
1202 foreach my $k (PVE
::Tools
::split_list
($keys)) {
1203 # Note: we generate 3 values to allow small time drift
1205 if ($k =~ /^[A-Z2-7=]{16}$/) {
1206 $binkey = MIME
::Base32
::decode_rfc3548
($k);
1207 } elsif ($k =~ /^[A-Fa-f0-9]{40}$/) {
1208 $binkey = pack('H*', $k);
1210 die "unrecognized key format, must be hex or base32 encoded\n";
1213 # force integer division for time/step
1215 my $now = time()/$step - 1;
1216 $found = 1 if $otp eq hotp
($binkey, $now+0, $digits);
1217 $found = 1 if $otp eq hotp
($binkey, $now+1, $digits);
1218 $found = 1 if $otp eq hotp
($binkey, $now+2, $digits);
1222 die "oath auth failed\n" if !$found;
1225 # bash completion helpers
1227 sub complete_username
{
1229 my $user_cfg = cfs_read_file
('user.cfg');
1231 return [ keys %{$user_cfg->{users
}} ];
1234 sub complete_group
{
1236 my $user_cfg = cfs_read_file
('user.cfg');
1238 return [ keys %{$user_cfg->{groups
}} ];
1241 sub complete_realm
{
1243 my $domain_cfg = cfs_read_file
('domains.cfg');
1245 return [ keys %{$domain_cfg->{ids
}} ];