1 package PVE
::AccessControl
;
6 use Crypt
::OpenSSL
::Random
;
7 use Crypt
::OpenSSL
::RSA
;
12 use Digest
::HMAC_SHA1
;
15 use PVE
::Tools
qw(run_command lock_file file_get_contents split_list safe_print);
16 use PVE
::Cluster
qw(cfs_register_file cfs_read_file cfs_write_file cfs_lock_file);
19 use PVE
::Auth
::Plugin
;
25 use Data
::Dumper
; # fixme: remove
27 # load and initialize all plugins
29 PVE
::Auth
::AD-
>register();
30 PVE
::Auth
::LDAP-
>register();
31 PVE
::Auth
::PVE-
>register();
32 PVE
::Auth
::PAM-
>register();
33 PVE
::Auth
::Plugin-
>init();
35 # $authdir must be writable by root only!
36 my $confdir = "/etc/pve";
37 my $authdir = "$confdir/priv";
38 my $authprivkeyfn = "$authdir/authkey.key";
39 my $authpubkeyfn = "$confdir/authkey.pub";
40 my $pve_www_key_fn = "$confdir/pve-www.key";
42 my $ticket_lifetime = 3600*2; # 2 hours
44 Crypt
::OpenSSL
::RSA-
>import_random_seed();
46 cfs_register_file
('user.cfg',
52 PVE
::Auth
::Plugin
::verify_username
(@_);
55 sub pve_verify_realm
{
56 PVE
::Auth
::Plugin
::pve_verify_realm
(@_);
59 sub lock_user_config
{
60 my ($code, $errmsg) = @_;
62 cfs_lock_file
("user.cfg", undef, $code);
64 $errmsg ?
die "$errmsg: $err" : die $err;
71 return $pve_auth_pub_key if $pve_auth_pub_key;
73 my $input = PVE
::Tools
::file_get_contents
($authpubkeyfn);
75 $pve_auth_pub_key = Crypt
::OpenSSL
::RSA-
>new_public_key($input);
77 return $pve_auth_pub_key;
80 my $csrf_prevention_secret;
81 my $get_csrfr_secret = sub {
82 if (!$csrf_prevention_secret) {
83 my $input = PVE
::Tools
::file_get_contents
($pve_www_key_fn);
84 $csrf_prevention_secret = Digest
::SHA
::sha1_base64
($input);
86 return $csrf_prevention_secret;
89 sub assemble_csrf_prevention_token
{
92 my $timestamp = sprintf("%08X", time());
94 my $digest = Digest
::SHA
::sha1_base64
("$timestamp:$username", &$get_csrfr_secret());
96 return "$timestamp:$digest";
99 sub verify_csrf_prevention_token
{
100 my ($username, $token, $noerr) = @_;
102 if ($token =~ m/^([A-Z0-9]{8}):(\S+)$/) {
105 my $ttime = hex($timestamp);
107 my $digest = Digest
::SHA
::sha1_base64
("$timestamp:$username", &$get_csrfr_secret());
109 my $age = time() - $ttime;
110 return if ($digest eq $sig) && ($age > -300) && ($age < $ticket_lifetime);
113 die "Permission denied - invalid csrf token\n" if !$noerr;
118 my $pve_auth_priv_key;
121 return $pve_auth_priv_key if $pve_auth_priv_key;
123 my $input = PVE
::Tools
::file_get_contents
($authprivkeyfn);
125 $pve_auth_priv_key = Crypt
::OpenSSL
::RSA-
>new_private_key($input);
127 return $pve_auth_priv_key;
130 sub assemble_ticket
{
133 my $rsa_priv = get_privkey
();
135 my $timestamp = sprintf("%08X", time());
137 my $plain = "PVE:$username:$timestamp";
139 my $ticket = $plain . "::" . encode_base64
($rsa_priv->sign($plain), '');
145 my ($ticket, $noerr) = @_;
147 if ($ticket && $ticket =~ m/^(PVE:\S+)::([^:\s]+)$/) {
151 my $rsa_pub = get_pubkey
();
152 if ($rsa_pub->verify($plain, decode_base64
($sig))) {
153 if ($plain =~ m/^PVE:(\S+):([A-Z0-9]{8})$/) {
156 my $ttime = hex($timestamp);
158 my $age = time() - $ttime;
160 if (PVE
::Auth
::Plugin
::verify_username
($username, 1) &&
161 ($age > -300) && ($age < $ticket_lifetime)) {
162 return wantarray ?
($username, $age) : $username;
168 die "permission denied - invalid ticket\n" if !$noerr;
174 # - they do not contain the username in plain text
175 # - they are restricted to a specific resource path (example: '/vms/100')
176 sub assemble_vnc_ticket
{
177 my ($username, $path) = @_;
179 my $rsa_priv = get_privkey
();
181 my $timestamp = sprintf("%08X", time());
183 my $plain = "PVEVNC:$timestamp";
185 $path = normalize_path
($path);
187 my $full = "$plain:$username:$path";
189 my $ticket = $plain . "::" . encode_base64
($rsa_priv->sign($full), '');
194 sub verify_vnc_ticket
{
195 my ($ticket, $username, $path, $noerr) = @_;
197 if ($ticket && $ticket =~ m/^(PVEVNC:\S+)::([^:\s]+)$/) {
200 my $full = "$plain:$username:$path";
202 my $rsa_pub = get_pubkey
();
203 # Note: sign only match if $username and $path is correct
204 if ($rsa_pub->verify($full, decode_base64
($sig))) {
205 if ($plain =~ m/^PVEVNC:([A-Z0-9]{8})$/) {
208 my $age = time() - $ttime;
210 if (($age > -20) && ($age < 40)) {
217 die "permission denied - invalid vnc ticket\n" if !$noerr;
222 sub assemble_spice_ticket
{
223 my ($username, $vmid, $node) = @_;
225 my $rsa_priv = get_privkey
();
227 my $timestamp = sprintf("%08x", time());
229 my $randomstr = "PVESPICE:$timestamp:$vmid:$node:" . rand(10);
231 # this should be uses as one-time password
232 # max length is 60 chars (spice limit)
233 # we pass this to qemu set_pasword and limit lifetime there
235 my $ticket = Digest
::SHA
::sha1_hex
($rsa_priv->sign($randomstr));
237 # Note: spice proxy connects with HTTP, so $proxyticket is exposed to public
238 # we use a signature/timestamp to make sure nobody can fake such ticket
239 # an attacker can use this $proxyticket, but he will fail because $ticket is
241 # The proxy need to be able to extract/verify the ticket
242 # Note: data needs to be lower case only, because virt-viewer needs that
243 # Note: RSA signature are too long (>=256 charaters) and makes problems with remote-viewer
245 my $secret = &$get_csrfr_secret();
246 my $plain = "pvespiceproxy:$timestamp:$vmid:" . lc($node);
248 # produces 40 characters
249 my $sig = unpack("H*", Digest
::SHA
::sha1
($plain, &$get_csrfr_secret()));
251 #my $sig = unpack("H*", $rsa_priv->sign($plain)); # this produce too long strings (512)
253 my $proxyticket = $plain . "::" . $sig;
255 return ($ticket, $proxyticket);
258 sub verify_spice_connect_url
{
259 my ($connect_str) = @_;
261 # Note: we pass the spice ticket as 'host', so the
262 # spice viewer connects with "$ticket:$port"
264 return undef if !$connect_str;
266 if ($connect_str =~m/^pvespiceproxy:([a-z0-9]{8}):(\d+):(\S+)::([a-z0-9]{40}):(\d+)$/) {
267 my ($timestamp, $vmid, $node, $hexsig, $port) = ($1, $2, $3, $4, $5, $6);
268 my $ttime = hex($timestamp);
269 my $age = time() - $ttime;
271 # use very limited lifetime - is this enough?
272 return undef if !(($age > -20) && ($age < 40));
274 my $plain = "pvespiceproxy:$timestamp:$vmid:$node";
275 my $sig = unpack("H*", Digest
::SHA
::sha1
($plain, &$get_csrfr_secret()));
277 if ($sig eq $hexsig) {
278 return ($vmid, $node, $port);
285 sub read_x509_subject_spice
{
289 my $bio = Net
::SSLeay
::BIO_new_file
($filename, 'r');
290 my $x509 = Net
::SSLeay
::PEM_read_bio_X509
($bio);
291 Net
::SSLeay
::BIO_free
($bio);
292 my $nameobj = Net
::SSLeay
::X509_get_subject_name
($x509);
293 my $subject = Net
::SSLeay
::X509_NAME_oneline
($nameobj);
294 Net
::SSLeay
::X509_free
($x509);
296 # remote-viewer wants comma as seperator (not '/')
298 $subject =~ s!/(\w+=)!,$1!g;
303 # helper to generate SPICE remote-viewer configuration
304 sub remote_viewer_config
{
305 my ($authuser, $vmid, $node, $proxy, $title, $port) = @_;
308 my $host = `hostname -f` || PVE
::INotify
::nodename
();
313 my ($ticket, $proxyticket) = assemble_spice_ticket
($authuser, $vmid, $node);
315 my $filename = "/etc/pve/local/pve-ssl.pem";
316 my $subject = read_x509_subject_spice
($filename);
318 my $cacert = PVE
::Tools
::file_get_contents
("/etc/pve/pve-root-ca.pem", 8192);
319 $cacert =~ s/\n/\\n/g;
321 $proxy = "[$proxy]" if Net
::IP
::ip_is_ipv6
($proxy);
323 'secure-attention' => "Ctrl+Alt+Ins",
324 'toggle-fullscreen' => "Shift+F11",
325 'release-cursor' => "Ctrl+Alt+R",
328 host
=> $proxyticket, # this break tls hostname verification, so we need to use 'host-subject'
329 proxy
=> "http://$proxy:3128",
331 'host-subject' => $subject,
334 'delete-this-file' => 1,
337 return ($ticket, $proxyticket, $config);
340 sub check_user_exist
{
341 my ($usercfg, $username, $noerr) = @_;
343 $username = PVE
::Auth
::Plugin
::verify_username
($username, $noerr);
344 return undef if !$username;
346 return $usercfg->{users
}->{$username} if $usercfg && $usercfg->{users
}->{$username};
348 die "no such user ('$username')\n" if !$noerr;
353 sub check_user_enabled
{
354 my ($usercfg, $username, $noerr) = @_;
356 my $data = check_user_exist
($usercfg, $username, $noerr);
357 return undef if !$data;
359 return 1 if $data->{enable
};
361 die "user '$username' is disabled\n" if !$noerr;
366 sub verify_one_time_pw
{
367 my ($usercfg, $username, $tfa_cfg, $otp) = @_;
369 my $type = $tfa_cfg->{type
};
371 die "missing one time password for Factor-two authentication '$type'\n" if !$otp;
373 # fixme: proxy support?
376 if ($type eq 'yubico') {
377 my $keys = $usercfg->{users
}->{$username}->{keys};
378 yubico_verify_otp
($otp, $keys, $tfa_cfg->{url
}, $tfa_cfg->{id
}, $tfa_cfg->{key
}, $proxy);
379 } elsif ($type eq 'oath') {
380 my $keys = $usercfg->{users
}->{$username}->{keys};
381 oath_verify_otp
($otp, $keys, $tfa_cfg->{step
}, $tfa_cfg->{digits
});
383 die "unknown tfa type '$type'\n";
387 # password should be utf8 encoded
388 # Note: some pluging delay/sleep if auth fails
389 sub authenticate_user
{
390 my ($username, $password, $otp) = @_;
392 die "no username specified\n" if !$username;
396 ($username, $ruid, $realm) = PVE
::Auth
::Plugin
::verify_username
($username);
398 my $usercfg = cfs_read_file
('user.cfg');
400 check_user_enabled
($usercfg, $username);
403 my $expire = $usercfg->{users
}->{$username}->{expire
};
405 die "account expired\n" if $expire && ($expire < $ctime);
407 my $domain_cfg = cfs_read_file
('domains.cfg');
409 my $cfg = $domain_cfg->{ids
}->{$realm};
410 die "auth domain '$realm' does not exists\n" if !$cfg;
411 my $plugin = PVE
::Auth
::Plugin-
>lookup($cfg->{type
});
412 $plugin->authenticate_user($cfg, $realm, $ruid, $password);
415 my $tfa_cfg = PVE
::Auth
::Plugin
::parse_tfa_config
($cfg->{tfa
});
416 verify_one_time_pw
($usercfg, $username, $tfa_cfg, $otp);
422 sub domain_set_password
{
423 my ($realm, $username, $password) = @_;
425 die "no auth domain specified" if !$realm;
427 my $domain_cfg = cfs_read_file
('domains.cfg');
429 my $cfg = $domain_cfg->{ids
}->{$realm};
430 die "auth domain '$realm' does not exists\n" if !$cfg;
431 my $plugin = PVE
::Auth
::Plugin-
>lookup($cfg->{type
});
432 $plugin->store_password($cfg, $realm, $username, $password);
436 my ($username, $usercfg, $group) = @_;
438 $usercfg->{users
}->{$username}->{groups
}->{$group} = 1;
439 $usercfg->{groups
}->{$group}->{users
}->{$username} = 1;
442 sub delete_user_group
{
443 my ($username, $usercfg) = @_;
445 foreach my $group (keys %{$usercfg->{groups
}}) {
447 delete ($usercfg->{groups
}->{$group}->{users
}->{$username})
448 if $usercfg->{groups
}->{$group}->{users
}->{$username};
452 sub delete_user_acl
{
453 my ($username, $usercfg) = @_;
455 foreach my $acl (keys %{$usercfg->{acl
}}) {
457 delete ($usercfg->{acl
}->{$acl}->{users
}->{$username})
458 if $usercfg->{acl
}->{$acl}->{users
}->{$username};
462 sub delete_group_acl
{
463 my ($group, $usercfg) = @_;
465 foreach my $acl (keys %{$usercfg->{acl
}}) {
467 delete ($usercfg->{acl
}->{$acl}->{groups
}->{$group})
468 if $usercfg->{acl
}->{$acl}->{groups
}->{$group};
472 sub delete_pool_acl
{
473 my ($pool, $usercfg) = @_;
475 my $path = "/pool/$pool";
477 delete ($usercfg->{acl
}->{$path})
480 # we automatically create some predefined roles by splitting privs
481 # into 3 groups (per category)
482 # root: only root is allowed to do that
483 # admin: an administrator can to that
484 # user: a normak user/customer can to that
494 'VM.Config.Options', # covers all other things
502 'VM.Config.CDROM', # change CDROM media
514 'Sys.Modify', # edit/change node settings
517 'Permissions.Modify',
529 'Datastore.Allocate',
530 'Datastore.AllocateTemplate',
533 'Datastore.AllocateSpace',
545 'Group.Allocate', # edit/change group settings
546 'Realm.AllocateUser',
554 'Pool.Allocate', # create/delete pools
561 my $valid_privs = {};
563 my $special_roles = {
564 'NoAccess' => {}, # no priviledges
565 'Administrator' => $valid_privs, # all priviledges
570 foreach my $cat (keys %$privgroups) {
571 my $cd = $privgroups->{$cat};
572 foreach my $p (@{$cd->{root
}}, @{$cd->{admin
}},
573 @{$cd->{user
}}, @{$cd->{audit
}}) {
574 $valid_privs->{$p} = 1;
576 foreach my $p (@{$cd->{admin
}}, @{$cd->{user
}}, @{$cd->{audit
}}) {
578 $special_roles->{"PVE${cat}Admin"}->{$p} = 1;
579 $special_roles->{"PVEAdmin"}->{$p} = 1;
581 if (scalar(@{$cd->{user
}})) {
582 foreach my $p (@{$cd->{user
}}, @{$cd->{audit
}}) {
583 $special_roles->{"PVE${cat}User"}->{$p} = 1;
586 foreach my $p (@{$cd->{audit
}}) {
587 $special_roles->{"PVEAuditor"}->{$p} = 1;
591 $special_roles->{"PVETemplateUser"} = { 'VM.Clone' => 1, 'VM.Audit' => 1 };
597 my ($role, $usercfg, $privs) = @_;
601 die "role '$role' does not exist\n" if !$usercfg->{roles
}->{$role};
603 foreach my $priv (split_list
($privs)) {
604 if (defined ($valid_privs->{$priv})) {
605 $usercfg->{roles
}->{$role}->{$priv} = 1;
607 die "invalid priviledge '$priv'\n";
619 $path = '/' if !$path;
621 $path = "/$path" if $path !~ m
|^/|;
623 return undef if $path !~ m
|^[[:alnum
:]\
.\
-\_\
/]+$|;
629 PVE
::JSONSchema
::register_format
('pve-groupid', \
&verify_groupname
);
630 sub verify_groupname
{
631 my ($groupname, $noerr) = @_;
633 if ($groupname !~ m/^[A-Za-z0-9\.\-_]+$/) {
635 die "group name '$groupname' contains invalid characters\n" if !$noerr;
643 PVE
::JSONSchema
::register_format
('pve-roleid', \
&verify_rolename
);
644 sub verify_rolename
{
645 my ($rolename, $noerr) = @_;
647 if ($rolename !~ m/^[A-Za-z0-9\.\-_]+$/) {
649 die "role name '$rolename' contains invalid characters\n" if !$noerr;
657 PVE
::JSONSchema
::register_format
('pve-poolid', \
&verify_groupname
);
658 sub verify_poolname
{
659 my ($poolname, $noerr) = @_;
661 if ($poolname !~ m/^[A-Za-z0-9\.\-_]+$/) {
663 die "pool name '$poolname' contains invalid characters\n" if !$noerr;
671 PVE
::JSONSchema
::register_format
('pve-priv', \
&verify_privname
);
672 sub verify_privname
{
673 my ($priv, $noerr) = @_;
675 if (!$valid_privs->{$priv}) {
676 die "invalid priviledge '$priv'\n" if !$noerr;
684 sub userconfig_force_defaults
{
687 foreach my $r (keys %$special_roles) {
688 $cfg->{roles
}->{$r} = $special_roles->{$r};
691 # add root user if not exists
692 if (!$cfg->{users
}->{'root@pam'}) {
693 $cfg->{users
}->{'root@pam'}->{enable
} = 1;
697 sub parse_user_config
{
698 my ($filename, $raw) = @_;
702 userconfig_force_defaults
($cfg);
704 $raw = '' if !defined($raw);
705 while ($raw =~ /^\s*(.+?)\s*$/gm) {
709 foreach my $d (split (/:/, $line)) {
715 my $et = shift @data;
718 my ($user, $enable, $expire, $firstname, $lastname, $email, $comment, $keys) = @data;
720 my (undef, undef, $realm) = PVE
::Auth
::Plugin
::verify_username
($user, 1);
722 warn "user config - ignore user '$user' - invalid user name\n";
726 $enable = $enable ?
1 : 0;
728 $expire = 0 if !$expire;
730 if ($expire !~ m/^\d+$/) {
731 warn "user config - ignore user '$user' - (illegal characters in expire '$expire')\n";
734 $expire = int($expire);
736 #if (!verify_groupname ($group, 1)) {
737 # warn "user config - ignore user '$user' - invalid characters in group name\n";
741 $cfg->{users
}->{$user} = {
745 $cfg->{users
}->{$user}->{firstname
} = PVE
::Tools
::decode_text
($firstname) if $firstname;
746 $cfg->{users
}->{$user}->{lastname
} = PVE
::Tools
::decode_text
($lastname) if $lastname;
747 $cfg->{users
}->{$user}->{email
} = $email;
748 $cfg->{users
}->{$user}->{comment
} = PVE
::Tools
::decode_text
($comment) if $comment;
749 $cfg->{users
}->{$user}->{expire
} = $expire;
750 # keys: allowed yubico key ids or oath secrets (base32 encoded)
751 $cfg->{users
}->{$user}->{keys} = $keys if $keys;
753 #$cfg->{users}->{$user}->{groups}->{$group} = 1;
754 #$cfg->{groups}->{$group}->{$user} = 1;
756 } elsif ($et eq 'group') {
757 my ($group, $userlist, $comment) = @data;
759 if (!verify_groupname
($group, 1)) {
760 warn "user config - ignore group '$group' - invalid characters in group name\n";
764 # make sure to add the group (even if there are no members)
765 $cfg->{groups
}->{$group} = { users
=> {} } if !$cfg->{groups
}->{$group};
767 $cfg->{groups
}->{$group}->{comment
} = PVE
::Tools
::decode_text
($comment) if $comment;
769 foreach my $user (split_list
($userlist)) {
771 if (!PVE
::Auth
::Plugin
::verify_username
($user, 1)) {
772 warn "user config - ignore invalid group member '$user'\n";
776 if ($cfg->{users
}->{$user}) { # user exists
777 $cfg->{users
}->{$user}->{groups
}->{$group} = 1;
778 $cfg->{groups
}->{$group}->{users
}->{$user} = 1;
780 warn "user config - ignore invalid group member '$user'\n";
784 } elsif ($et eq 'role') {
785 my ($role, $privlist) = @data;
787 if (!verify_rolename
($role, 1)) {
788 warn "user config - ignore role '$role' - invalid characters in role name\n";
792 # make sure to add the role (even if there are no privileges)
793 $cfg->{roles
}->{$role} = {} if !$cfg->{roles
}->{$role};
795 foreach my $priv (split_list
($privlist)) {
796 if (defined ($valid_privs->{$priv})) {
797 $cfg->{roles
}->{$role}->{$priv} = 1;
799 warn "user config - ignore invalid priviledge '$priv'\n";
803 } elsif ($et eq 'acl') {
804 my ($propagate, $pathtxt, $uglist, $rolelist) = @data;
806 if (my $path = normalize_path
($pathtxt)) {
807 foreach my $role (split_list
($rolelist)) {
809 if (!verify_rolename
($role, 1)) {
810 warn "user config - ignore invalid role name '$role' in acl\n";
814 foreach my $ug (split_list
($uglist)) {
815 if ($ug =~ m/^@(\S+)$/) {
817 if ($cfg->{groups
}->{$group}) { # group exists
818 $cfg->{acl
}->{$path}->{groups
}->{$group}->{$role} = $propagate;
820 warn "user config - ignore invalid acl group '$group'\n";
822 } elsif (PVE
::Auth
::Plugin
::verify_username
($ug, 1)) {
823 if ($cfg->{users
}->{$ug}) { # user exists
824 $cfg->{acl
}->{$path}->{users
}->{$ug}->{$role} = $propagate;
826 warn "user config - ignore invalid acl member '$ug'\n";
829 warn "user config - invalid user/group '$ug' in acl\n";
834 warn "user config - ignore invalid path in acl '$pathtxt'\n";
836 } elsif ($et eq 'pool') {
837 my ($pool, $comment, $vmlist, $storelist) = @data;
839 if (!verify_poolname
($pool, 1)) {
840 warn "user config - ignore pool '$pool' - invalid characters in pool name\n";
844 # make sure to add the pool (even if there are no members)
845 $cfg->{pools
}->{$pool} = { vms
=> {}, storage
=> {} } if !$cfg->{pools
}->{$pool};
847 $cfg->{pools
}->{$pool}->{comment
} = PVE
::Tools
::decode_text
($comment) if $comment;
849 foreach my $vmid (split_list
($vmlist)) {
850 if ($vmid !~ m/^\d+$/) {
851 warn "user config - ignore invalid vmid '$vmid' in pool '$pool'\n";
856 if ($cfg->{vms
}->{$vmid}) {
857 warn "user config - ignore duplicate vmid '$vmid' in pool '$pool'\n";
861 $cfg->{pools
}->{$pool}->{vms
}->{$vmid} = 1;
863 # record vmid ==> pool relation
864 $cfg->{vms
}->{$vmid} = $pool;
867 foreach my $storeid (split_list
($storelist)) {
868 if ($storeid !~ m/^[a-z][a-z0-9\-\_\.]*[a-z0-9]$/i) {
869 warn "user config - ignore invalid storage '$storeid' in pool '$pool'\n";
872 $cfg->{pools
}->{$pool}->{storage
}->{$storeid} = 1;
875 warn "user config - ignore config line: $line\n";
879 userconfig_force_defaults
($cfg);
884 sub write_user_config
{
885 my ($filename, $cfg) = @_;
889 foreach my $user (keys %{$cfg->{users
}}) {
890 my $d = $cfg->{users
}->{$user};
891 my $firstname = $d->{firstname
} ? PVE
::Tools
::encode_text
($d->{firstname
}) : '';
892 my $lastname = $d->{lastname
} ? PVE
::Tools
::encode_text
($d->{lastname
}) : '';
893 my $email = $d->{email
} || '';
894 my $comment = $d->{comment
} ? PVE
::Tools
::encode_text
($d->{comment
}) : '';
895 my $expire = int($d->{expire
} || 0);
896 my $enable = $d->{enable
} ?
1 : 0;
897 my $keys = $d->{keys} ?
$d->{keys} : '';
898 $data .= "user:$user:$enable:$expire:$firstname:$lastname:$email:$comment:$keys:\n";
903 foreach my $group (keys %{$cfg->{groups
}}) {
904 my $d = $cfg->{groups
}->{$group};
905 my $list = join (',', keys %{$d->{users
}});
906 my $comment = $d->{comment
} ? PVE
::Tools
::encode_text
($d->{comment
}) : '';
907 $data .= "group:$group:$list:$comment:\n";
912 foreach my $pool (keys %{$cfg->{pools
}}) {
913 my $d = $cfg->{pools
}->{$pool};
914 my $vmlist = join (',', keys %{$d->{vms
}});
915 my $storelist = join (',', keys %{$d->{storage
}});
916 my $comment = $d->{comment
} ? PVE
::Tools
::encode_text
($d->{comment
}) : '';
917 $data .= "pool:$pool:$comment:$vmlist:$storelist:\n";
922 foreach my $role (keys %{$cfg->{roles
}}) {
923 next if $special_roles->{$role};
925 my $d = $cfg->{roles
}->{$role};
926 my $list = join (',', keys %$d);
927 $data .= "role:$role:$list:\n";
932 foreach my $path (sort keys %{$cfg->{acl
}}) {
933 my $d = $cfg->{acl
}->{$path};
937 foreach my $group (keys %{$d->{groups
}}) {
940 foreach my $role (sort keys %{$d->{groups
}->{$group}}) {
941 my $propagate = $d->{groups
}->{$group}->{$role};
950 $ra->{0}->{$l0}->{"\@$group"} = 1 if $l0;
951 $ra->{1}->{$l1}->{"\@$group"} = 1 if $l1;
954 foreach my $user (keys %{$d->{users
}}) {
955 # no need to save, because root is always 'Administartor'
956 next if $user eq 'root@pam';
960 foreach my $role (sort keys %{$d->{users
}->{$user}}) {
961 my $propagate = $d->{users
}->{$user}->{$role};
970 $ra->{0}->{$l0}->{$user} = 1 if $l0;
971 $ra->{1}->{$l1}->{$user} = 1 if $l1;
974 foreach my $rolelist (sort keys %{$ra->{0}}) {
975 my $uglist = join (',', keys %{$ra->{0}->{$rolelist}});
976 $data .= "acl:0:$path:$uglist:$rolelist:\n";
978 foreach my $rolelist (sort keys %{$ra->{1}}) {
979 my $uglist = join (',', keys %{$ra->{1}->{$rolelist}});
980 $data .= "acl:1:$path:$uglist:$rolelist:\n";
988 my ($cfg, $user, $path) = @_;
990 # NOTE: we do not consider pools here.
991 # You need to use $rpcenv->roles() instead if you want that.
993 return 'Administrator' if $user eq 'root@pam'; # root can do anything
997 foreach my $p (sort keys %{$cfg->{acl
}}) {
998 my $final = ($path eq $p);
1000 next if !(($p eq '/') || $final || ($path =~ m
|^$p/|));
1002 my $acl = $cfg->{acl
}->{$p};
1004 #print "CHECKACL $path $p\n";
1005 #print "ACL $path = " . Dumper ($acl);
1007 if (my $ri = $acl->{users
}->{$user}) {
1009 foreach my $role (keys %$ri) {
1010 my $propagate = $ri->{$role};
1011 if ($final || $propagate) {
1012 #print "APPLY ROLE $p $user $role\n";
1018 $perm = $new; # overwrite previous settings
1019 next; # user privs always override group privs
1024 foreach my $g (keys %{$acl->{groups
}}) {
1025 next if !$cfg->{groups
}->{$g}->{users
}->{$user};
1026 if (my $ri = $acl->{groups
}->{$g}) {
1027 foreach my $role (keys %$ri) {
1028 my $propagate = $ri->{$role};
1029 if ($final || $propagate) {
1030 #print "APPLY ROLE $p \@$g $role\n";
1038 $perm = $new; # overwrite previous settings
1043 return ('NoAccess') if defined ($perm->{NoAccess
});
1044 #return () if defined ($perm->{NoAccess});
1046 #print "permission $user $path = " . Dumper ($perm);
1048 my @ra = keys %$perm;
1050 #print "roles $user $path = " . join (',', @ra) . "\n";
1056 my ($cfg, $user, $path) = @_;
1058 $user = PVE
::Auth
::Plugin
::verify_username
($user, 1);
1059 return {} if !$user;
1061 my @ra = roles
($cfg, $user, $path);
1065 foreach my $role (@ra) {
1066 if (my $privset = $cfg->{roles
}->{$role}) {
1067 foreach my $p (keys %$privset) {
1073 #print "priviledges $user $path = " . Dumper ($privs);
1078 sub check_permissions
{
1079 my ($username, $path, $privlist) = @_;
1081 $path = normalize_path
($path);
1082 my $usercfg = cfs_read_file
('user.cfg');
1083 my $perm = permission
($usercfg, $username, $path);
1085 foreach my $priv (split_list
($privlist)) {
1086 return undef if !$perm->{$priv};
1092 sub remove_vm_access
{
1094 my $delVMaccessFn = sub {
1095 my $usercfg = cfs_read_file
("user.cfg");
1098 if (my $acl = $usercfg->{acl
}->{"/vms/$vmid"}) {
1099 delete $usercfg->{acl
}->{"/vms/$vmid"};
1102 if (my $pool = $usercfg->{vms
}->{$vmid}) {
1103 if (my $data = $usercfg->{pools
}->{$pool}) {
1104 delete $data->{vms
}->{$vmid};
1105 delete $usercfg->{vms
}->{$vmid};
1109 cfs_write_file
("user.cfg", $usercfg) if $modified;
1112 lock_user_config
($delVMaccessFn, "access permissions cleanup for VM $vmid failed");
1115 sub add_vm_to_pool
{
1116 my ($vmid, $pool) = @_;
1118 my $addVMtoPoolFn = sub {
1119 my $usercfg = cfs_read_file
("user.cfg");
1120 if (my $data = $usercfg->{pools
}->{$pool}) {
1121 $data->{vms
}->{$vmid} = 1;
1122 $usercfg->{vms
}->{$vmid} = $pool;
1123 cfs_write_file
("user.cfg", $usercfg);
1127 lock_user_config
($addVMtoPoolFn, "can't add VM $vmid to pool '$pool'");
1130 sub remove_vm_from_pool
{
1133 my $delVMfromPoolFn = sub {
1134 my $usercfg = cfs_read_file
("user.cfg");
1135 if (my $pool = $usercfg->{vms
}->{$vmid}) {
1136 if (my $data = $usercfg->{pools
}->{$pool}) {
1137 delete $data->{vms
}->{$vmid};
1138 delete $usercfg->{vms
}->{$vmid};
1139 cfs_write_file
("user.cfg", $usercfg);
1144 lock_user_config
($delVMfromPoolFn, "pool cleanup for VM $vmid failed");
1147 # experimental code for yubico OTP verification
1149 sub yubico_compute_param_sig
{
1150 my ($param, $api_key) = @_;
1153 foreach my $key (sort keys %$param) {
1154 $paramstr .= '&' if $paramstr;
1155 $paramstr .= "$key=$param->{$key}";
1158 my $sig = uri_escape
(encode_base64
(Digest
::HMAC_SHA1
::hmac_sha1
($paramstr, decode_base64
($api_key || '')), ''));
1160 return ($paramstr, $sig);
1163 sub yubico_verify_otp
{
1164 my ($otp, $keys, $url, $api_id, $api_key, $proxy) = @_;
1166 die "yubico: missing password\n" if !defined($otp);
1167 die "yubico: missing API ID\n" if !defined($api_id);
1168 die "yubico: missing API KEY\n" if !defined($api_key);
1169 die "yubico: no associated yubico keys\n" if $keys =~ m/^\s+$/;
1171 die "yubico: wrong OTP lenght\n" if (length($otp) < 32) || (length($otp) > 48);
1173 # we always use http, because https cert verification always make problem, and
1174 # some proxies does not work with https.
1176 $url = 'http://api2.yubico.com/wsapi/2.0/verify' if !defined($url);
1179 nonce
=> Digest
::HMAC_SHA1
::hmac_sha1_hex
(time(), rand()),
1181 otp
=> uri_escape
($otp),
1185 my ($paramstr, $sig) = yubico_compute_param_sig
($params, $api_key);
1187 $paramstr .= "&h=$sig" if $api_key;
1189 my $req = HTTP
::Request-
>new('GET' => "$url?$paramstr");
1191 my $ua = LWP
::UserAgent-
>new(protocols_allowed
=> ['http'], timeout
=> 30);
1194 $ua->proxy(['http'], $proxy);
1199 my $response = $ua->request($req);
1200 my $code = $response->code;
1203 my $msg = $response->message || 'unknown';
1204 die "Invalid response from server: $code $msg\n";
1207 my $raw = $response->decoded_content;
1210 foreach my $kvpair (split(/\n/, $raw)) {
1212 if($kvpair =~ /^\S+=/) {
1213 my ($k, $v) = split(/=/, $kvpair, 2);
1219 my $rsig = $result->{h
};
1220 delete $result->{h
};
1223 my ($datastr, $vsig) = yubico_compute_param_sig
($result, $api_key);
1224 $vsig = uri_unescape
($vsig);
1225 die "yubico: result signature verification failed\n" if $rsig ne $vsig;
1228 die "yubico auth failed: $result->{status}\n" if $result->{status
} ne 'OK';
1230 my $publicid = $result->{publicid
} = substr(lc($result->{otp
}), 0, 12);
1233 foreach my $k (PVE
::Tools
::split_list
($keys)) {
1234 if ($k eq $publicid) {
1240 die "yubico auth failed: key does not belong to user\n" if !$found;
1245 sub oath_verify_otp
{
1246 my ($otp, $keys, $step, $digits) = @_;
1248 die "oath: missing password\n" if !defined($otp);
1249 die "oath: no associated oath keys\n" if $keys =~ m/^\s+$/;
1251 $step = 30 if !$step;
1252 $digits = 6 if !$digits;
1259 if ($line =~ m/^\d{6}$/) {
1260 $found = 1 if $otp eq $line;
1264 foreach my $k (PVE
::Tools
::split_list
($keys)) {
1265 # Note: we generate 3 values to allow small time drift
1266 my $now = localtime(time() - $step);
1267 my $cmd = ['oathtool', '--totp', '--digits', $digits, '-N', $now, '-s', $step, '-w', '2', '-b', $k];
1268 eval { run_command
($cmd, outfunc
=> $parser, errfunc
=> sub {}); };
1272 die "oath auth failed\n" if !$found;