1 package PVE
::AccessControl
;
5 use Crypt
::OpenSSL
::Random
;
6 use Crypt
::OpenSSL
::RSA
;
9 use Authen
::PAM
qw(:constants);
11 use PVE
::Tools
qw(run_command lock_file file_get_contents split_list safe_print);
12 use PVE
::Cluster
qw(cfs_register_file cfs_read_file cfs_write_file cfs_lock_file);
16 use Data
::Dumper
; # fixme: remove
18 # $authdir must be writable by root only!
19 my $confdir = "/etc/pve";
20 my $authdir = "$confdir/priv";
21 my $authprivkeyfn = "$authdir/authkey.key";
22 my $authpubkeyfn = "$confdir/authkey.pub";
23 my $shadowconfigfile = "priv/shadow.cfg";
24 my $domainconfigfile = "domains.cfg";
25 my $pve_www_key_fn = "$confdir/pve-www.key";
27 my $ticket_lifetime = 3600*2; # 2 hours
29 Crypt
::OpenSSL
::RSA-
>import_random_seed();
31 cfs_register_file
('user.cfg',
35 cfs_register_file
($shadowconfigfile,
36 \
&parse_shadow_passwd
,
37 \
&write_shadow_config
);
39 cfs_register_file
($domainconfigfile,
44 sub lock_user_config
{
45 my ($code, $errmsg) = @_;
47 cfs_lock_file
("user.cfg", undef, $code);
50 $errmsg ?
die "$errmsg: $err" : die $err;
54 sub lock_domain_config
{
55 my ($code, $errmsg) = @_;
57 cfs_lock_file
($domainconfigfile, undef, $code);
60 $errmsg ?
die "$errmsg: $err" : die $err;
64 sub lock_shadow_config
{
65 my ($code, $errmsg) = @_;
67 cfs_lock_file
($shadowconfigfile, undef, $code);
70 $errmsg ?
die "$errmsg: $err" : die $err;
77 return $pve_auth_pub_key if $pve_auth_pub_key;
79 my $input = PVE
::Tools
::file_get_contents
($authpubkeyfn);
81 $pve_auth_pub_key = Crypt
::OpenSSL
::RSA-
>new_public_key($input);
83 return $pve_auth_pub_key;
86 my $csrf_prevention_secret;
87 my $get_csrfr_secret = sub {
88 if (!$csrf_prevention_secret) {
89 my $input = PVE
::Tools
::file_get_contents
($pve_www_key_fn);
90 $csrf_prevention_secret = Digest
::SHA
::sha1_base64
($input);
92 return $csrf_prevention_secret;
95 sub assemble_csrf_prevention_token
{
98 my $timestamp = sprintf("%08X", time());
100 my $digest = Digest
::SHA
::sha1_base64
("$timestamp:$username", &$get_csrfr_secret());
102 return "$timestamp:$digest";
105 sub verify_csrf_prevention_token
{
106 my ($username, $token, $noerr) = @_;
108 if ($token =~ m/^([A-Z0-9]{8}):(\S+)$/) {
111 my $ttime = hex($timestamp);
113 my $digest = Digest
::SHA
::sha1_base64
("$timestamp:$username", &$get_csrfr_secret());
115 my $age = time() - $ttime;
116 return if ($digest eq $sig) && ($age > -300) && ($age < $ticket_lifetime);
119 die "Permission denied - invalid csrf token\n" if !$noerr;
124 my $pve_auth_priv_key;
127 return $pve_auth_priv_key if $pve_auth_priv_key;
129 my $input = PVE
::Tools
::file_get_contents
($authprivkeyfn);
131 $pve_auth_priv_key = Crypt
::OpenSSL
::RSA-
>new_private_key($input);
133 return $pve_auth_priv_key;
136 sub assemble_ticket
{
139 my $rsa_priv = get_privkey
();
141 my $timestamp = sprintf("%08X", time());
143 my $plain = "PVE:$username:$timestamp";
145 my $ticket = $plain . "::" . encode_base64
($rsa_priv->sign($plain), '');
151 my ($ticket, $noerr) = @_;
153 if ($ticket && $ticket =~ m/^(PVE:\S+)::([^:\s]+)$/) {
157 my $rsa_pub = get_pubkey
();
158 if ($rsa_pub->verify($plain, decode_base64
($sig))) {
159 if ($plain =~ m/^PVE:(([A-Za-z0-9\.\-_]+)(\@([A-Za-z0-9\.\-_]+))?):([A-Z0-9]{8})$/) {
162 my $ttime = hex($timestamp);
164 my $age = time() - $ttime;
166 if (($age > -300) && ($age < $ticket_lifetime)) {
167 return wantarray ?
($username, $age) : $username;
173 die "permission denied - invalid ticket\n" if !$noerr;
179 # - they do not contain the username in plain text
180 # - they are restricted to a specific resource path (example: '/vms/100')
181 sub assemble_vnc_ticket
{
182 my ($username, $path) = @_;
184 my $rsa_priv = get_privkey
();
186 my $timestamp = sprintf("%08X", time());
188 my $plain = "PVEVNC:$timestamp";
190 $path = normalize_path
($path);
192 my $full = "$plain:$username:$path";
194 my $ticket = $plain . "::" . encode_base64
($rsa_priv->sign($full), '');
199 sub verify_vnc_ticket
{
200 my ($ticket, $username, $path, $noerr) = @_;
202 if ($ticket && $ticket =~ m/^(PVEVNC:\S+)::([^:\s]+)$/) {
205 my $full = "$plain:$username:$path";
207 my $rsa_pub = get_pubkey
();
208 # Note: sign only match if $username and $path is correct
209 if ($rsa_pub->verify($full, decode_base64
($sig))) {
210 if ($plain =~ m/^PVEVNC:([A-Z0-9]{8})$/) {
213 my $age = time() - $ttime;
215 if (($age > -20) && ($age < 40)) {
222 die "permission denied - invalid vnc ticket\n" if !$noerr;
228 sub authenticate_user_shadow
{
229 my ($userid, $password) = @_;
231 die "no password\n" if !$password;
233 my $shadow_cfg = cfs_read_file
($shadowconfigfile);
235 if ($shadow_cfg->{users
}->{$userid}) {
236 my $encpw = crypt($password, $shadow_cfg->{users
}->{$userid}->{shadow
});
237 die "invalid credentials\n" if ($encpw ne $shadow_cfg->{users
}->{$userid}->{shadow
});
239 die "no password set\n";
243 sub authenticate_user_pam
{
244 my ($userid, $password) = @_;
246 # user (www-data) need to be able to read /etc/passwd /etc/shadow
248 die "no password\n" if !$password;
250 my $pamh = new Authen
::PAM
('common-auth', $userid, sub {
253 my $msg_type = shift;
255 push @res, (0, $password);
262 my $err = $pamh->pam_strerror($pamh);
263 die "error during PAM init: $err";
268 if (($res = $pamh->pam_authenticate(0)) != PAM_SUCCESS
) {
269 my $err = $pamh->pam_strerror($res);
273 if (($res = $pamh->pam_acct_mgmt (0)) != PAM_SUCCESS
) {
274 my $err = $pamh->pam_strerror($res);
278 $pamh = 0; # call destructor
281 sub authenticate_user_ad
{
283 my ($entry, $server, $userid, $password) = @_;
285 my $default_port = $entry->{secure
} ?
636: 389;
286 my $port = $entry->{port
} ?
$entry->{port
} : $default_port;
287 my $scheme = $entry->{secure
} ?
'ldaps' : 'ldap';
288 my $conn_string = "$scheme://${server}:$port";
290 my $ldap = Net
::LDAP-
>new($server) || die "$@\n";
292 $userid = "$userid\@$entry->{domain}"
293 if $userid !~ m/@/ && $entry->{domain
};
295 my $res = $ldap->bind($userid, password
=> $password);
297 my $code = $res->code();
298 my $err = $res->error;
302 die "$err\n" if ($code);
305 sub authenticate_user_ldap
{
307 my ($entry, $server, $userid, $password) = @_;
309 my $default_port = $entry->{secure
} ?
636: 389;
310 my $port = $entry->{port
} ?
$entry->{port
} : $default_port;
311 my $scheme = $entry->{secure
} ?
'ldaps' : 'ldap';
312 my $conn_string = "$scheme://${server}:$port";
314 my $ldap = Net
::LDAP-
>new($conn_string, verify
=> 'none') || die "$@\n";
315 my $search = $entry->{user_attr
} . "=" . $userid;
316 my $result = $ldap->search( base
=> "$entry->{base_dn}",
321 die "no entries returned\n" if !$result->entries;
322 my @entries = $result->entries;
323 my $res = $ldap->bind($entries[0]->dn, password
=> $password);
325 my $code = $res->code();
326 my $err = $res->error;
330 die "$err\n" if ($code);
333 sub authenticate_user_domain
{
334 my ($realm, $userid, $password) = @_;
336 my $domain_cfg = cfs_read_file
($domainconfigfile);
338 die "no auth domain specified" if !$realm;
340 if ($realm eq 'pam') {
341 authenticate_user_pam
($userid, $password);
346 if ($realm eq 'pve') {
347 authenticate_user_shadow
($userid, $password);
350 my $cfg = $domain_cfg->{$realm};
351 die "auth domain '$realm' does not exists\n" if !$cfg;
353 if ($cfg->{type
} eq 'ad') {
354 eval { authenticate_user_ad
($cfg, $cfg->{server1
}, $userid, $password); };
357 die $err if !$cfg->{server2
};
358 authenticate_user_ad
($cfg, $cfg->{server2
}, $userid, $password);
359 } elsif ($cfg->{type
} eq 'ldap') {
360 eval { authenticate_user_ldap
($cfg, $cfg->{server1
}, $userid, $password); };
363 die $err if !$cfg->{server2
};
364 authenticate_user_ldap
($cfg, $cfg->{server2
}, $userid, $password);
366 die "unknown auth type '$cfg->{type}'\n";
371 sleep(2); # timeout after failed auth
376 sub check_user_exist
{
377 my ($usercfg, $username, $noerr) = @_;
379 $username = verify_username
($username, $noerr);
380 return undef if !$username;
382 return $usercfg->{users
}->{$username} if $usercfg && $usercfg->{users
}->{$username};
384 die "no such user ('$username')\n" if !$noerr;
389 sub check_user_enabled
{
390 my ($usercfg, $username, $noerr) = @_;
392 my $data = check_user_exist
($usercfg, $username, $noerr);
393 return undef if !$data;
395 return 1 if $data->{enable
};
397 return 1 if $username eq 'root@pam'; # root is always enabled
399 die "user '$username' is disabled\n" if !$noerr;
404 # password should be utf8 encoded
405 sub authenticate_user
{
406 my ($username, $password) = @_;
408 die "no username specified\n" if !$username;
410 my ($userid, $realm);
412 ($username, $userid, $realm) = verify_username
($username);
414 my $usercfg = cfs_read_file
('user.cfg');
416 eval { check_user_enabled
($usercfg, $username); };
423 my $expire = $usercfg->{users
}->{$username}->{expire
};
425 if ($expire && ($expire < $ctime)) {
427 die "account expired\n"
430 authenticate_user_domain
($realm, $userid, $password);
435 sub delete_shadow_password
{
438 lock_shadow_config
(sub {
439 my $shadow_cfg = cfs_read_file
($shadowconfigfile);
440 delete ($shadow_cfg->{users
}->{$userid})
441 if $shadow_cfg->{users
}->{$userid};
442 cfs_write_file
($shadowconfigfile, $shadow_cfg);
446 sub store_shadow_password
{
447 my ($userid, $password) = @_;
449 lock_shadow_config
(sub {
450 my $shadow_cfg = cfs_read_file
($shadowconfigfile);
451 $shadow_cfg->{users
}->{$userid}->{shadow
} = encrypt_pw
($password);
452 cfs_write_file
($shadowconfigfile, $shadow_cfg);
459 my $time = substr (Digest
::SHA
::sha1_base64
(time), 0, 8);
460 return crypt (encode
("utf8", $pw), "\$5\$$time\$");
463 sub store_pam_password
{
464 my ($userid, $password) = @_;
466 my $cmd = ['/usr/sbin/usermod'];
468 my $epw = encrypt_pw
($password);
469 push @$cmd, '-p', $epw;
476 sub domain_set_password
{
477 my ($realm, $userid, $password) = @_;
479 die "no auth domain specified" if !$realm;
481 if ($realm eq 'pam') {
482 store_pam_password
($userid, $password);
483 } elsif ($realm eq 'pve') {
484 store_shadow_password
($userid, $password);
486 die "can't set password on auth domain '$realm'\n";
492 my ($username, $usercfg, $group) = @_;
493 $usercfg->{users
}->{$username}->{groups
}->{$group} = 1;
494 $usercfg->{groups
}->{$group}->{users
}->{$username} = 1;
497 sub delete_user_group
{
499 my ($username, $usercfg) = @_;
501 foreach my $group (keys %{$usercfg->{groups
}}) {
503 delete ($usercfg->{groups
}->{$group}->{users
}->{$username})
504 if $usercfg->{groups
}->{$group}->{users
}->{$username};
508 sub delete_user_acl
{
510 my ($username, $usercfg) = @_;
512 foreach my $acl (keys %{$usercfg->{acl
}}) {
514 delete ($usercfg->{acl
}->{$acl}->{users
}->{$username})
515 if $usercfg->{acl
}->{$acl}->{users
}->{$username};
519 sub delete_group_acl
{
521 my ($group, $usercfg) = @_;
523 foreach my $acl (keys %{$usercfg->{acl
}}) {
525 delete ($usercfg->{acl
}->{$acl}->{groups
}->{$group})
526 if $usercfg->{acl
}->{$acl}->{groups
}->{$group};
531 # we automatically create some predefined roles by splitting privs
532 # into 3 groups (per category)
533 # root: only root is allowed to do that
534 # admin: an administrator can to that
535 # user: a normak user/customer can to that
543 'Permissions.Modify',
556 'Sys.Modify', # edit/change node settings
557 'Sys.UserAdd', # add/delete users
562 'Sys.UserMod', # modify users settings
571 'Datastore.Allocate',
572 'Permissions.Modify',
576 'Datastore.AllocateSpace',
584 my $valid_privs = {};
586 my $special_roles = {
587 'NoAccess' => {}, # no priviledges
588 'Administrator' => $valid_privs, # all priviledges
593 foreach my $cat (keys %$privgroups) {
594 my $cd = $privgroups->{$cat};
595 foreach my $p (@{$cd->{root
}}, @{$cd->{admin
}},
596 @{$cd->{user
}}, @{$cd->{audit
}}) {
597 $valid_privs->{$p} = 1;
599 foreach my $p (@{$cd->{admin
}}, @{$cd->{user
}}, @{$cd->{audit
}}) {
601 $special_roles->{"PVE${cat}Admin"}->{$p} = 1;
602 $special_roles->{"PVEAdmin"}->{$p} = 1;
604 if (scalar(@{$cd->{user
}})) {
605 foreach my $p (@{$cd->{user
}}, @{$cd->{audit
}}) {
606 $special_roles->{"PVE${cat}User"}->{$p} = 1;
609 foreach my $p (@{$cd->{audit
}}) {
610 $special_roles->{"PVEAuditor"}->{$p} = 1;
617 my $valid_attributes = {
619 server1
=> '[\w\d]+(.[\w\d]+)*',
620 server2
=> '[\w\d]+(.[\w\d]+)*',
627 server1
=> '[\w\d]+(.[\w\d]+)*',
628 server2
=> '[\w\d]+(.[\w\d]+)*',
629 base_dn
=> '\w+=[\w\s]+(,\s*\w+=[\w\s]+)*',
630 user_attr
=> '\S{2,}',
638 my ($role, $usercfg, $privs) = @_;
642 die "role '$role' does not exist\n" if !$usercfg->{roles
}->{$role};
644 foreach my $priv (split_list
($privs)) {
645 if (defined ($valid_privs->{$priv})) {
646 $usercfg->{roles
}->{$role}->{$priv} = 1;
648 die "invalid priviledge '$priv'\n";
660 $path = '/' if !$path;
662 return undef if $path !~ m
|^[[:alnum
:]\
-\_\
/]+$|;
667 my $realm_regex = qr/[A-Za-z][A-Za-z0-9\.\-_]+/;
669 sub pve_verify_realm
{
670 my ($realm, $noerr) = @_;
672 if ($realm !~ m/^${realm_regex}$/) {
673 return undef if $noerr;
674 die "value does not look like a valid realm\n";
679 PVE
::JSONSchema
::register_format
('pve-userid', \
&verify_username
);
680 sub verify_username
{
681 my ($username, $noerr) = @_;
683 $username = '' if !$username;
684 my $len = length($username);
686 die "user name '$username' is too short\n" if !$noerr;
690 die "user name '$username' is too long ($len > 64)\n" if !$noerr;
694 # we only allow a limited set of characters (colon is not allowed,
695 # because we store usernames in colon separated lists)!
696 if ($username =~ m/^([^\s:]+)\@(${realm_regex})$/) {
697 return wantarray ?
($username, $1, $2) : $username;
700 die "value '$username' does not look like a valid user name\n" if !$noerr;
704 PVE
::JSONSchema
::register_standard_option
('userid', {
705 description
=> "User ID",
706 type
=> 'string', format
=> 'pve-userid',
710 PVE
::JSONSchema
::register_standard_option
('realm', {
711 description
=> "Authentication domain ID",
712 type
=> 'string', format
=> 'pve-configid',
716 PVE
::JSONSchema
::register_format
('pve-groupid', \
&verify_groupname
);
717 sub verify_groupname
{
718 my ($groupname, $noerr) = @_;
720 if ($groupname !~ m/^[A-Za-z0-9\.\-_]+$/) {
722 die "group name '$groupname' contains invalid characters\n" if !$noerr;
730 PVE
::JSONSchema
::register_format
('pve-roleid', \
&verify_rolename
);
731 sub verify_rolename
{
732 my ($rolename, $noerr) = @_;
734 if ($rolename !~ m/^[A-Za-z0-9\.\-_]+$/) {
736 die "role name '$rolename' contains invalid characters\n" if !$noerr;
744 PVE
::JSONSchema
::register_format
('pve-priv', \
&verify_privname
);
745 sub verify_privname
{
746 my ($priv, $noerr) = @_;
748 if (!$valid_privs->{$priv}) {
749 die "invalid priviledge '$priv'\n" if !$noerr;
757 sub userconfig_force_defaults
{
760 foreach my $r (keys %$special_roles) {
761 $cfg->{roles
}->{$r} = $special_roles->{$r};
764 # fixme: remove 'root' group (not required)?
767 $cfg->{users
}->{'root@pam'}->{enable
} = 1;
770 sub parse_user_config
{
771 my ($filename, $raw) = @_;
775 userconfig_force_defaults
($cfg);
777 while ($raw && $raw =~ s/^(.*?)(\n|$)//) {
780 next if $line =~ m/^\s*$/; # skip empty lines
784 foreach my $d (split (/:/, $line)) {
790 my $et = shift @data;
793 my ($user, $enable, $expire, $firstname, $lastname, $email, $comment) = @data;
795 my (undef, undef, $realm) = verify_username
($user, 1);
797 warn "user config - ignore user '$user' - invalid user name\n";
801 $enable = $enable ?
1 : 0;
803 $expire = 0 if !$expire;
805 if ($expire !~ m/^\d+$/) {
806 warn "user config - ignore user '$user' - (illegal characters in expire '$expire')\n";
809 $expire = int($expire);
811 #if (!verify_groupname ($group, 1)) {
812 # warn "user config - ignore user '$user' - invalid characters in group name\n";
816 $cfg->{users
}->{$user} = {
820 $cfg->{users
}->{$user}->{firstname
} = PVE
::Tools
::decode_text
($firstname) if $firstname;
821 $cfg->{users
}->{$user}->{lastname
} = PVE
::Tools
::decode_text
($lastname) if $lastname;
822 $cfg->{users
}->{$user}->{email
} = $email;
823 $cfg->{users
}->{$user}->{comment
} = PVE
::Tools
::decode_text
($comment) if $comment;
824 $cfg->{users
}->{$user}->{expire
} = $expire;
826 #$cfg->{users}->{$user}->{groups}->{$group} = 1;
827 #$cfg->{groups}->{$group}->{$user} = 1;
829 } elsif ($et eq 'group') {
830 my ($group, $userlist, $comment) = @data;
832 if (!verify_groupname
($group, 1)) {
833 warn "user config - ignore group '$group' - invalid characters in group name\n";
837 # make sure to add the group (even if there are no members)
838 $cfg->{groups
}->{$group} = { users
=> {} } if !$cfg->{groups
}->{$group};
840 $cfg->{groups
}->{$group}->{comment
} = PVE
::Tools
::decode_text
($comment) if $comment;
842 foreach my $user (split_list
($userlist)) {
844 if (!verify_username
($user, 1)) {
845 warn "user config - ignore invalid group member '$user'\n";
849 if ($cfg->{users
}->{$user}) { # user exists
850 $cfg->{users
}->{$user}->{groups
}->{$group} = 1;
851 $cfg->{groups
}->{$group}->{users
}->{$user} = 1;
853 warn "user config - ignore invalid group member '$user'\n";
857 } elsif ($et eq 'role') {
858 my ($role, $privlist) = @data;
860 if (!verify_rolename
($role, 1)) {
861 warn "user config - ignore role '$role' - invalid characters in role name\n";
865 # make sure to add the role (even if there are no privileges)
866 $cfg->{roles
}->{$role} = {} if !$cfg->{roles
}->{$role};
868 foreach my $priv (split_list
($privlist)) {
869 if (defined ($valid_privs->{$priv})) {
870 $cfg->{roles
}->{$role}->{$priv} = 1;
872 warn "user config - ignore invalid priviledge '$priv'\n";
876 } elsif ($et eq 'acl') {
877 my ($propagate, $pathtxt, $uglist, $rolelist) = @data;
879 if (my $path = normalize_path
($pathtxt)) {
880 foreach my $role (split_list
($rolelist)) {
882 if (!verify_rolename
($role, 1)) {
883 warn "user config - ignore invalid role name '$role' in acl\n";
887 foreach my $ug (split_list
($uglist)) {
888 if ($ug =~ m/^@(\w+)$/) {
890 if ($cfg->{groups
}->{$group}) { # group exists
891 $cfg->{acl
}->{$path}->{groups
}->{$group}->{$role} = $propagate;
893 warn "user config - ignore invalid acl group '$group'\n";
895 } elsif (verify_username
($ug, 1)) {
896 if ($cfg->{users
}->{$ug}) { # user exists
897 $cfg->{acl
}->{$path}->{users
}->{$ug}->{$role} = $propagate;
899 warn "user config - ignore invalid acl member '$ug'\n";
902 warn "user config - invalid user/group '$ug' in acl\n";
907 warn "user config - ignore invalid path in acl '$pathtxt'\n";
910 warn "user config - ignore config line: $line\n";
914 userconfig_force_defaults
($cfg);
919 sub parse_shadow_passwd
{
920 my ($filename, $raw) = @_;
924 while ($raw && $raw =~ s/^(.*?)(\n|$)//) {
927 next if $line =~ m/^\s*$/; # skip empty lines
929 if ($line !~ m/^\S+:\S+:$/) {
930 warn "pve shadow password: ignore invalid line $.\n";
934 my ($userid, $crypt_pass) = split (/:/, $line);
935 $shadow->{users
}->{$userid}->{shadow
} = $crypt_pass;
942 my ($filename, $cfg) = @_;
948 foreach my $realm (sort keys %$cfg) {
949 my $entry = $cfg->{$realm};
950 my $type = lc($entry->{type
});
954 next if ($type eq 'pam') || ($type eq 'pve');
956 my $formats = $valid_attributes->{$type};
959 $data .= "$type: $realm\n";
961 foreach my $k (sort keys %$entry) {
962 next if $k eq 'type';
963 my $v = $entry->{$k};
964 if ($k eq 'default') {
965 $data .= "\t$k\n" if $v && !$wrote_default;
967 } elsif (defined($formats->{$k})) {
968 if (!$formats->{$k}) {
969 $data .= "\t$k\n" if $v;
970 } elsif ($v =~ m/^$formats->{$k}$/) {
971 $v = PVE
::Tools
::encode_text
($v) if $k eq 'comment';
972 $data .= "\t$k $v\n";
974 die "invalid value '$v' for attribute '$k'\n";
977 die "invalid attribute '$k' - not supported\n";
988 my ($filename, $raw) = @_;
994 while ($raw && $raw =~ s/^(.*?)(\n|$)//) {
997 next if $line =~ m/^\#/; # skip comment lines
998 next if $line =~ m/^\s*$/; # skip empty lines
1000 if ($line =~ m/^(\S+):\s*(\S+)\s*$/) {
1007 my $formats = $valid_attributes->{$type};
1010 warn "ignoring domain '$realm' - (unsupported authentication type '$type')\n";
1011 } elsif (!pve_verify_realm
($realm, 1)) {
1013 warn "ignoring domain '$realm' - (illegal characters)\n";
1015 $entry = { type
=> $type };
1018 while ($raw && $raw =~ s/^(.*?)(\n|$)//) {
1021 next if $line =~ m/^\#/; #skip comment lines
1022 last if $line =~ m/^\s*$/;
1024 next if $ignore; # skip
1026 if ($line =~ m/^\s+(default)\s*$/) {
1027 $default = $realm if !$default;
1028 } elsif ($line =~ m/^\s+(\S+)(\s+(.*\S))?\s*$/) {
1029 my ($k, $v) = (lc($1), $3);
1030 if (defined($formats->{$k})) {
1031 if (!$formats->{$k} && !defined($v)) {
1033 } elsif ($formats->{$k} && $v =~ m/^$formats->{$k}$/) {
1034 if (!defined($entry->{$k})) {
1035 $v = PVE
::Tools
::decode_text
($v) if $k eq 'comment';
1038 warn "ignoring duplicate attribute '$k $v'\n";
1041 warn "ignoring value '$v' for attribute '$k' - invalid format\n";
1044 warn "ignoring attribute '$k' - not supported\n";
1047 warn "ignore config line: $line\n";
1051 if ($entry->{server2
} && !$entry->{server1
}) {
1052 $entry->{server1
} = $entry->{server2
};
1053 delete $entry->{server2
};
1058 } elsif (!$entry->{server1
}) {
1059 warn "ignoring domain '$realm' - missing server attribute\n";
1060 } elsif (($entry->{type
} eq "ldap") && !$entry->{user_attr
}) {
1061 warn "ignoring domain '$realm' - missing user attribute\n";
1062 } elsif (($entry->{type
} eq "ldap") && !$entry->{base_dn
}) {
1063 warn "ignoring domain '$realm' - missing base_dn attribute\n";
1064 } elsif (($entry->{type
} eq "ad") && !$entry->{domain
}) {
1065 warn "ignoring domain '$realm' - missing domain attribute\n";
1067 $cfg->{$realm} = $entry;
1071 warn "ignore config line: $line\n";
1075 $cfg->{$default}->{default} = 1 if $default;
1077 # add default domains
1081 comment
=> "Proxmox VE authentication server",
1086 comment
=> "Linux PAM standard authentication",
1092 sub write_shadow_config
{
1093 my ($filename, $cfg) = @_;
1096 foreach my $userid (keys %{$cfg->{users
}}) {
1097 my $crypt_pass = $cfg->{users
}->{$userid}->{shadow
};
1098 $data .= "$userid:$crypt_pass:\n";
1104 sub write_user_config
{
1105 my ($filename, $cfg) = @_;
1109 foreach my $user (keys %{$cfg->{users
}}) {
1110 my $d = $cfg->{users
}->{$user};
1111 my $firstname = $d->{firstname
} ? PVE
::Tools
::encode_text
($d->{firstname
}) : '';
1112 my $lastname = $d->{lastname
} ? PVE
::Tools
::encode_text
($d->{lastname
}) : '';
1113 my $email = $d->{email
} || '';
1114 my $comment = $d->{comment
} ? PVE
::Tools
::encode_text
($d->{comment
}) : '';
1115 my $expire = int($d->{expire
} || 0);
1116 my $enable = $d->{enable
} ?
1 : 0;
1117 $data .= "user:$user:$enable:$expire:$firstname:$lastname:$email:$comment:\n";
1122 foreach my $group (keys %{$cfg->{groups
}}) {
1123 my $d = $cfg->{groups
}->{$group};
1124 my $list = join (',', keys %{$d->{users
}});
1125 my $comment = $d->{comment
} ? PVE
::Tools
::encode_text
($d->{comment
}) : '';
1126 $data .= "group:$group:$list:$comment:\n";
1131 foreach my $role (keys %{$cfg->{roles
}}) {
1132 next if $special_roles->{$role};
1134 my $d = $cfg->{roles
}->{$role};
1135 my $list = join (',', keys %$d);
1136 $data .= "role:$role:$list:\n";
1141 foreach my $path (sort keys %{$cfg->{acl
}}) {
1142 my $d = $cfg->{acl
}->{$path};
1146 foreach my $group (keys %{$d->{groups
}}) {
1149 foreach my $role (sort keys %{$d->{groups
}->{$group}}) {
1150 my $propagate = $d->{groups
}->{$group}->{$role};
1159 $ra->{0}->{$l0}->{"\@$group"} = 1 if $l0;
1160 $ra->{1}->{$l1}->{"\@$group"} = 1 if $l1;
1163 foreach my $user (keys %{$d->{users
}}) {
1164 # no need to save, because root is always 'Administartor'
1165 next if $user eq 'root@pam';
1169 foreach my $role (sort keys %{$d->{users
}->{$user}}) {
1170 my $propagate = $d->{users
}->{$user}->{$role};
1179 $ra->{0}->{$l0}->{$user} = 1 if $l0;
1180 $ra->{1}->{$l1}->{$user} = 1 if $l1;
1183 foreach my $rolelist (sort keys %{$ra->{0}}) {
1184 my $uglist = join (',', keys %{$ra->{0}->{$rolelist}});
1185 $data .= "acl:0:$path:$uglist:$rolelist:\n";
1187 foreach my $rolelist (sort keys %{$ra->{1}}) {
1188 my $uglist = join (',', keys %{$ra->{1}->{$rolelist}});
1189 $data .= "acl:1:$path:$uglist:$rolelist:\n";
1197 my ($cfg, $user, $path) = @_;
1199 return 'Administrator' if $user eq 'root@pam'; # root can do anything
1203 foreach my $p (sort keys %{$cfg->{acl
}}) {
1204 my $final = ($path eq $p);
1206 next if !(($p eq '/') || $final || ($path =~ m
|^$p/|));
1208 my $acl = $cfg->{acl
}->{$p};
1210 #print "CHECKACL $path $p\n";
1211 #print "ACL $path = " . Dumper ($acl);
1213 if (my $ri = $acl->{users
}->{$user}) {
1215 foreach my $role (keys %$ri) {
1216 my $propagate = $ri->{$role};
1217 if ($final || $propagate) {
1218 #print "APPLY ROLE $p $user $role\n";
1224 $perm = $new; # overwrite previous settings
1225 next; # user privs always override group privs
1230 foreach my $g (keys %{$acl->{groups
}}) {
1231 next if !$cfg->{groups
}->{$g}->{users
}->{$user};
1232 if (my $ri = $acl->{groups
}->{$g}) {
1233 foreach my $role (keys %$ri) {
1234 my $propagate = $ri->{$role};
1235 if ($final || $propagate) {
1236 #print "APPLY ROLE $p \@$g $role\n";
1244 $perm = $new; # overwrite previous settings
1252 if (!defined ($perm->{NoAccess
})) {
1256 #print "permission $user $path = " . Dumper ($perm);
1258 my @ra = keys %$res;
1260 #print "roles $user $path = " . join (',', @ra) . "\n";
1266 my ($cfg, $user, $path) = @_;
1268 $user = verify_username
($user, 1);
1269 return {} if !$user;
1271 my @ra = roles
($cfg, $user, $path);
1275 foreach my $role (@ra) {
1276 if (my $privset = $cfg->{roles
}->{$role}) {
1277 foreach my $p (keys %$privset) {
1283 #print "priviledges $user $path = " . Dumper ($privs);
1288 sub check_permissions
{
1289 my ($username, $path, $privlist) = @_;
1291 $path = normalize_path
($path);
1292 my $usercfg = cfs_read_file
('user.cfg');
1293 my $perm = permission
($usercfg, $username, $path);
1295 foreach my $priv (split_list
($privlist)) {
1296 return undef if !$perm->{$priv};