s3:auth: add make_{server,session}_info_anonymous()

s3:auth: add make_{server,session}_info_anonymous()

It's important to have them separated from make_{server,session}_info_guest(),
because there's a fundamental difference between anonymous (the client requested
no authentication) and guest (the server lies about the authentication failure).

The following is the difference between guest and anonymous token:

             security_token: struct security_token
-                num_sids                 : 0x0000000a (10)
-                sids: ARRAY(10)
-                    sids                     : S-1-5-21-3793881525-3372187982-3724979742-501
-                    sids                     : S-1-5-21-3793881525-3372187982-3724979742-514
-                    sids                     : S-1-22-2-65534
-                    sids                     : S-1-22-2-65533
+                num_sids                 : 0x00000009 (9)
+                sids: ARRAY(9)
+                    sids                     : S-1-5-7
                     sids                     : S-1-1-0
                     sids                     : S-1-5-2
-                    sids                     : S-1-5-32-546
                     sids                     : S-1-22-1-65533
+                    sids                     : S-1-22-2-65534
+                    sids                     : S-1-22-2-100004
                     sids                     : S-1-22-2-100002
                     sids                     : S-1-22-2-100003
+                    sids                     : S-1-22-2-65533
                 privilege_mask           : 0x0000000000000000 (0)

...

         unix_token               : *
             unix_token: struct security_unix_token
                 uid                      : 0x000000000000fffd (65533)
                 gid                      : 0x000000000000fffe (65534)
-                ngroups                  : 0x00000004 (4)
-                groups: ARRAY(4)
+                ngroups                  : 0x00000005 (5)
+                groups: ARRAY(5)
                     groups                   : 0x000000000000fffe (65534)
-                    groups                   : 0x000000000000fffd (65533)
+                    groups                   : 0x00000000000186a4 (100004)
                     groups                   : 0x00000000000186a2 (100002)
                     groups                   : 0x00000000000186a3 (100003)
+                    groups                   : 0x000000000000fffd (65533)

             info: struct auth_user_info
                 account_name             : *
-                    account_name             : 'nobody'
+                    account_name             : 'ANONYMOUS LOGON'
                 user_principal_name      : NULL
                 user_principal_constructed: 0x00 (0)
                 domain_name              : *
-                    domain_name              : 'SAMBA-TEST'
+                    domain_name              : 'NT AUTHORITY'
                 dns_domain_name          : NULL
-                full_name                : NULL
-                logon_script             : NULL
-                profile_path             : NULL
-                home_directory           : NULL
-                home_drive               : NULL
-                logon_server             : NULL
+                full_name                : *
+                    full_name                : 'Anonymous Logon'
+                logon_script             : *
+                    logon_script             : ''
+                profile_path             : *
+                    profile_path             : ''
+                home_directory           : *
+                    home_directory           : ''
+                home_drive               : *
+                    home_drive               : ''
+                logon_server             : *
+                    logon_server             : 'LOCALNT4DC2'
                 last_logon               : NTTIME(0)
                 last_logoff              : NTTIME(0)
                 acct_expiry              : NTTIME(0)
                 last_password_change     : NTTIME(0)
                 allow_password_change    : NTTIME(0)
                 force_password_change    : NTTIME(0)
                 logon_count              : 0x0000 (0)
                 bad_password_count       : 0x0000 (0)
-                acct_flags               : 0x00000000 (0)
+                acct_flags               : 0x00000010 (16)
                 authenticated            : 0x00 (0)
             security_token: struct security_token
                 num_sids                 : 0x00000006 (6)
                 sids: ARRAY(6)
+                    sids                     : S-1-5-7
+                    sids                     : S-1-1-0
+                    sids                     : S-1-5-2
                     sids                     : S-1-22-1-65533
                     sids                     : S-1-22-2-65534
                     sids                     : S-1-22-2-65533
-                    sids                     : S-1-1-0
-                    sids                     : S-1-5-2
-                    sids                     : S-1-5-32-546
                 privilege_mask           : 0x0000000000000000 (0)

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13328

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(similar to commit 6afb6b67a198c88ab8fa3fee931729c43605716d)