Add some static. Patch by Stefan Metzmacher <metze@metzemix.de>
[sfrench/samba-autobuild/.git] / source3 / auth / auth_domain.c
index f74f1bb9e89f393effd5cd1edacdbc6f5cdc9232..2991684280546b794ede64d5a9432ea183d11afc 100644 (file)
@@ -24,9 +24,8 @@
 #undef DBGC_CLASS
 #define DBGC_CLASS DBGC_AUTH
 
-BOOL global_machine_password_needs_changing = False;
+extern BOOL global_machine_password_needs_changing;
 
-extern pstring global_myname;
 extern userdom_struct current_user_info;
 
 
@@ -46,21 +45,23 @@ static NTSTATUS ads_resolve_dc(fstring remote_machine,
                return NT_STATUS_NO_LOGON_SERVERS;              
        }
 
+       DEBUG(4,("ads_resolve_dc: realm=%s\n", ads->config.realm));
+
+       ads->auth.flags |= ADS_AUTH_NO_BIND;
+
 #ifdef HAVE_ADS
        /* a full ads_connect() is actually overkill, as we don't srictly need
           to do the SASL auth in order to get the info we need, but libads
           doesn't offer a better way right now */
-       if (!ADS_ERR_OK(ads_connect(ads))) {
-               return NT_STATUS_NO_LOGON_SERVERS;              
-       }
+       ads_connect(ads);
 #endif
 
-       fstrcpy(remote_machine, ads->ldap_server_name);
+       fstrcpy(remote_machine, ads->config.ldap_server_name);
        strupper(remote_machine);
-       *dest_ip = *interpret_addr2(ads->ldap_server);
+       *dest_ip = ads->ldap_ip;
        ads_destroy(&ads);
        
-       if (!*remote_machine) {
+       if (!*remote_machine || is_zero_ip(*dest_ip)) {
                return NT_STATUS_NO_LOGON_SERVERS;              
        }
 
@@ -86,8 +87,7 @@ static NTSTATUS rpc_resolve_dc(const char *server,
                   way to find it, but until we have a RPC call that does this
                   it will have to do */
                if (!name_status_find("*", 0x20, 0x20, to_ip, remote_machine)) {
-                       DEBUG(2, ("connect_to_domain_password_server: Can't "
-                                 "resolve name for IP %s\n", server));
+                       DEBUG(2, ("rpc_resolve_dc: Can't resolve name for IP %s\n", server));
                        return NT_STATUS_NO_LOGON_SERVERS;
                }
 
@@ -98,7 +98,7 @@ static NTSTATUS rpc_resolve_dc(const char *server,
        fstrcpy(remote_machine, server);
        strupper(remote_machine);
        if (!resolve_name(remote_machine, dest_ip, 0x20)) {
-               DEBUG(1,("connect_to_domain_password_server: Can't resolve address for %s\n", 
+               DEBUG(1,("rpc_resolve_dc: Can't resolve address for %s\n", 
                         remote_machine));
                return NT_STATUS_NO_LOGON_SERVERS;
        }
@@ -115,7 +115,7 @@ static NTSTATUS rpc_resolve_dc(const char *server,
  * @param cli the cli to return containing the active connection
  * @param server either a machine name or text IP address to
  *               connect to.
- * @param trust_password the trust password to establish the
+ * @param trust_passwd the trust password to establish the
  *                       credentials with.
  *
  **/
@@ -124,17 +124,19 @@ static NTSTATUS connect_to_domain_password_server(struct cli_state **cli,
                                                  const char *server, 
                                                  const char *setup_creds_as,
                                                  uint16 sec_chan,
-                                                 const unsigned char *trust_passwd)
+                                                 const unsigned char *trust_passwd,
+                                                 BOOL *retry)
 {
        struct in_addr dest_ip;
        fstring remote_machine;
         NTSTATUS result;
 
-       if (lp_security() == SEC_ADS) {
+       *retry = False;
+
+       if (lp_security() == SEC_ADS)
                result = ads_resolve_dc(remote_machine, &dest_ip);
-       } else {
+       else
                result = rpc_resolve_dc(server, remote_machine, &dest_ip);
-       }
 
        if (!NT_STATUS_IS_OK(result)) {
                DEBUG(2,("connect_to_domain_password_server: unable to resolve DC: %s\n", 
@@ -162,14 +164,21 @@ static NTSTATUS connect_to_domain_password_server(struct cli_state **cli,
         * ACCESS_DENIED errors if 2 auths are done from the same machine. JRA.
         */
 
+       *retry = True;
+
        if (!grab_server_mutex(server))
                return NT_STATUS_NO_LOGON_SERVERS;
        
        /* Attempt connection */
-       result = cli_full_connection(cli, global_myname, server,
-                                    &dest_ip, 0, "IPC$", "IPC", "", "", "", 0);
+       result = cli_full_connection(cli, global_myname(), remote_machine,
+                                    &dest_ip, 0, "IPC$", "IPC", "", "", "",0, retry);
 
        if (!NT_STATUS_IS_OK(result)) {
+               /* map to something more useful */
+               if (NT_STATUS_EQUAL(result, NT_STATUS_UNSUCCESSFUL)) {
+                       result = NT_STATUS_NO_LOGON_SERVERS;
+               }
+
                release_server_mutex();
                return result;
        }
@@ -187,7 +196,7 @@ static NTSTATUS connect_to_domain_password_server(struct cli_state **cli,
         * into account also. This patch from "Bjart Kvarme" <bjart.kvarme@usit.uio.no>.
         */
 
-       if(cli_nt_session_open(*cli, PIPE_NETLOGON) == False) {
+       if(cli_nt_session_open(*cli, PI_NETLOGON) == False) {
                DEBUG(0,("connect_to_domain_password_server: unable to open the domain client session to \
 machine %s. Error was : %s.\n", remote_machine, cli_errstr(*cli)));
                cli_nt_session_close(*cli);
@@ -204,10 +213,10 @@ machine %s. Error was : %s.\n", remote_machine, cli_errstr(*cli)));
                return NT_STATUS_NO_MEMORY;
        }
 
-       result = cli_nt_setup_creds(*cli, sec_chan, trust_passwd);
+       result = cli_nt_establish_netlogon(*cli, sec_chan, trust_passwd);
 
         if (!NT_STATUS_IS_OK(result)) {
-               DEBUG(0,("connect_to_domain_password_server: unable to setup the PDC credentials to machine \
+               DEBUG(0,("connect_to_domain_password_server: unable to setup the NETLOGON credentials to machine \
 %s. Error was : %s.\n", remote_machine, nt_errstr(result)));
                cli_nt_session_close(*cli);
                cli_ulogoff(*cli);
@@ -232,7 +241,10 @@ static NTSTATUS attempt_connect_to_dc(struct cli_state **cli,
                                      uint16 sec_chan,
                                      const unsigned char *trust_passwd)
 {
+       NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
+       BOOL retry = True;
        fstring dc_name;
+       int i;
 
        /*
         * Ignore addresses we have already tried.
@@ -241,97 +253,36 @@ static NTSTATUS attempt_connect_to_dc(struct cli_state **cli,
        if (is_zero_ip(*ip))
                return NT_STATUS_NO_LOGON_SERVERS;
 
-       if (!lookup_dc_name(global_myname, domain, ip, dc_name))
+       if (!lookup_dc_name(global_myname(), domain, ip, dc_name))
                return NT_STATUS_NO_LOGON_SERVERS;
 
-       return connect_to_domain_password_server(cli, dc_name, setup_creds_as, sec_chan, trust_passwd);
+       for (i = 0; (!NT_STATUS_IS_OK(ret)) && retry && (i < 3); i++)
+               ret = connect_to_domain_password_server(cli, dc_name, setup_creds_as,
+                               sec_chan, trust_passwd, &retry);
+       return ret;
 }
 
 /***********************************************************************
- We have been asked to dynamcially determine the IP addresses of
+ We have been asked to dynamically determine the IP addresses of
  the PDC and BDC's for DOMAIN, and query them in turn.
 ************************************************************************/
-static NTSTATUS find_connect_pdc(struct cli_state **cli, 
+static NTSTATUS find_connect_dc(struct cli_state **cli, 
                                 const char *domain,
                                 const char *setup_creds_as,
                                 uint16 sec_chan,
                                 unsigned char *trust_passwd, 
                                 time_t last_change_time)
 {
-       struct in_addr *ip_list = NULL;
-       int count = 0;
-       int i;
-       NTSTATUS nt_status = NT_STATUS_NO_LOGON_SERVERS;
-       time_t time_now = time(NULL);
-       BOOL use_pdc_only = False;
-
-       /*
-        * If the time the machine password has changed
-        * was less than an hour ago then we need to contact
-        * the PDC only, as we cannot be sure domain replication
-        * has yet taken place. Bug found by Gerald (way to go
-        * Gerald !). JRA.
-        */
-
-       if (time_now - last_change_time < 3600)
-               use_pdc_only = True;
+       struct in_addr dc_ip;
+       fstring srv_name;
 
-       if (!get_dc_list(use_pdc_only, domain, &ip_list, &count))
+       if (!rpc_find_dc(domain, srv_name, &dc_ip)) {
+               DEBUG(0,("find_connect_dc: Failed to find an DCs for %s\n", lp_workgroup()));
                return NT_STATUS_NO_LOGON_SERVERS;
-
-       /*
-        * Firstly try and contact a PDC/BDC who has the same
-        * network address as any of our interfaces.
-        */
-       for(i = 0; i < count; i++) {
-               if(!is_local_net(ip_list[i]))
-                       continue;
-
-               if(NT_STATUS_IS_OK(nt_status = 
-                                  attempt_connect_to_dc(cli, domain, 
-                                                        &ip_list[i], setup_creds_as, 
-                                                        sec_chan, trust_passwd))) 
-                       break;
-               
-               zero_ip(&ip_list[i]); /* Tried and failed. */
        }
-
-       /*
-        * Secondly try and contact a random PDC/BDC.
-        */
-       if(!NT_STATUS_IS_OK(nt_status)) {
-               i = (sys_random() % count);
-
-               if (!is_zero_ip(ip_list[i])) {
-                       if (!NT_STATUS_IS_OK(nt_status = 
-                                            attempt_connect_to_dc(cli, domain, 
-                                                                  &ip_list[i], setup_creds_as, 
-                                                                  sec_chan, trust_passwd)))
-                               zero_ip(&ip_list[i]); /* Tried and failed. */
-               }
-       }
-
-       /*
-        * Finally go through the IP list in turn, ignoring any addresses
-        * we have already tried.
-        */
-       if(!NT_STATUS_IS_OK(nt_status)) {
-               /*
-                * Try and connect to any of the other IP addresses in the PDC/BDC list.
-                * Note that from a WINS server the #1 IP address is the PDC.
-                */
-               for(i = 0; i < count; i++) {
-                       if (is_zero_ip(ip_list[i]))
-                               continue;
-
-                       if (NT_STATUS_IS_OK(nt_status = attempt_connect_to_dc(cli, domain, 
-                                                 &ip_list[i], setup_creds_as, sec_chan, trust_passwd)))
-                               break;
-               }
-       }
-
-       SAFE_FREE(ip_list);
-       return nt_status;
+       
+       return attempt_connect_to_dc( cli, domain, &dc_ip, setup_creds_as, 
+                       sec_chan, trust_passwd );
 }
 
 /***********************************************************************
@@ -345,7 +296,7 @@ static NTSTATUS domain_client_validate(TALLOC_CTX *mem_ctx,
                                       const char *domain,
                                       uchar chal[8],
                                       auth_serversupplied_info **server_info, 
-                                      char *server, char *setup_creds_as,
+                                      const char *server, const char *setup_creds_as,
                                       uint16 sec_chan,
                                       unsigned char trust_passwd[16],
                                       time_t last_change_time)
@@ -366,9 +317,13 @@ static NTSTATUS domain_client_validate(TALLOC_CTX *mem_ctx,
        while (!NT_STATUS_IS_OK(nt_status) &&
               next_token(&server,remote_machine,LIST_SEP,sizeof(remote_machine))) {
                if(lp_security() != SEC_ADS && strequal(remote_machine, "*")) {
-                       nt_status = find_connect_pdc(&cli, domain, setup_creds_as, sec_chan, trust_passwd, last_change_time);
+                       nt_status = find_connect_dc(&cli, domain, setup_creds_as, sec_chan, trust_passwd, last_change_time);
                } else {
-                       nt_status = connect_to_domain_password_server(&cli, remote_machine, setup_creds_as, sec_chan, trust_passwd);
+                       int i;
+                       BOOL retry = True;
+                       for (i = 0; !NT_STATUS_IS_OK(nt_status) && retry && (i < 3); i++)
+                               nt_status = connect_to_domain_password_server(&cli, remote_machine, setup_creds_as,
+                                               sec_chan, trust_passwd, &retry);
                }
        }
 
@@ -385,6 +340,7 @@ static NTSTATUS domain_client_validate(TALLOC_CTX *mem_ctx,
          */
 
        nt_status = cli_netlogon_sam_network_logon(cli, mem_ctx,
+                                                  NULL,
                                                   user_info->smb_name.str, user_info->domain.str, 
                                                   user_info->wksta_name.str, chal, 
                                                   user_info->lm_resp, user_info->nt_resp, 
@@ -396,16 +352,14 @@ static NTSTATUS domain_client_validate(TALLOC_CTX *mem_ctx,
                          "Error was %s.\n", user_info->smb_name.str,
                          user_info->domain.str, cli->srv_name_slash, 
                          nt_errstr(nt_status)));
+
+               /* map to something more useful */
+               if (NT_STATUS_EQUAL(nt_status, NT_STATUS_UNSUCCESSFUL)) {
+                       nt_status = NT_STATUS_NO_LOGON_SERVERS;
+               }
        } else {
                nt_status = make_server_info_info3(mem_ctx, user_info->internal_username.str, 
                                                   user_info->smb_name.str, domain, server_info, &info3);
-#if 0 
-               /* The stuff doesn't work right yet */
-               SMB_ASSERT(sizeof((*server_info)->session_key) == sizeof(info3.user_sess_key)); 
-               memcpy((*server_info)->session_key, info3.user_sess_key, sizeof((*server_info)->session_key)/* 16 */);
-               SamOEMhash((*server_info)->session_key, trust_passwd, sizeof((*server_info)->session_key));
-#endif         
-
                uni_group_cache_store_netlogon(mem_ctx, &info3);
        }
 
@@ -450,7 +404,8 @@ static NTSTATUS check_ntdomain_security(const struct auth_context *auth_context,
        char *password_server;
        unsigned char trust_passwd[16];
        time_t last_change_time;
-       char *domain = lp_workgroup();
+       const char *domain = lp_workgroup();
+       uint32 sec_channel_type = 0;
 
        if (!user_info || !server_info || !auth_context) {
                DEBUG(1,("check_ntdomain_security: Critical variables not present.  Failing.\n"));
@@ -463,7 +418,7 @@ static NTSTATUS check_ntdomain_security(const struct auth_context *auth_context,
         * password file.
         */
 
-       if(is_netbios_alias_or_name(user_info->domain.str)) {
+       if(is_myname(user_info->domain.str)) {
                DEBUG(3,("check_ntdomain_security: Requested domain was for this machine.\n"));
                return NT_STATUS_LOGON_FAILURE;
        }
@@ -473,16 +428,19 @@ static NTSTATUS check_ntdomain_security(const struct auth_context *auth_context,
         * No need to become_root() as secrets_init() is done at startup.
         */
 
-       if (!secrets_fetch_trust_account_password(domain, trust_passwd, &last_change_time))
+       if (!secrets_fetch_trust_account_password(domain, trust_passwd, &last_change_time, &sec_channel_type))
        {
                DEBUG(0, ("check_ntdomain_security: could not fetch trust account password for domain '%s'\n", domain));
                return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
        }
 
-       /* Test if machine password is expired and need to be changed */
-       if (time(NULL) > last_change_time + lp_machine_password_timeout())
-       {
-               global_machine_password_needs_changing = True;
+       /* Test if machine password has expired and needs to be changed */
+       if (lp_machine_password_timeout()) {
+               if (last_change_time > 0 && 
+                   time(NULL) > (last_change_time + 
+                                 lp_machine_password_timeout())) {
+                       global_machine_password_needs_changing = True;
+               }
        }
 
        /*
@@ -495,12 +453,12 @@ static NTSTATUS check_ntdomain_security(const struct auth_context *auth_context,
        nt_status = domain_client_validate(mem_ctx, user_info, domain,
                                           (uchar *)auth_context->challenge.data, 
                                           server_info, 
-                                          password_server, global_myname, SEC_CHAN_WKSTA, trust_passwd, last_change_time);
+                                          password_server, global_myname(), sec_channel_type,trust_passwd, last_change_time);
        return nt_status;
 }
 
 /* module initialisation */
-NTSTATUS auth_init_ntdomain(struct auth_context *auth_context, const char* param, auth_methods **auth_method) 
+static NTSTATUS auth_init_ntdomain(struct auth_context *auth_context, const char* param, auth_methods **auth_method) 
 {
        if (!make_auth_methods(auth_context, auth_method)) {
                return NT_STATUS_NO_MEMORY;
@@ -539,7 +497,7 @@ static NTSTATUS check_trustdomain_security(const struct auth_context *auth_conte
         * password file.
         */
 
-       if(is_netbios_alias_or_name(user_info->domain.str)) {
+       if(is_myname(user_info->domain.str)) {
                DEBUG(3,("check_trustdomain_security: Requested domain was for this machine.\n"));
                return NT_STATUS_LOGON_FAILURE;
        }
@@ -588,7 +546,7 @@ static NTSTATUS check_trustdomain_security(const struct auth_context *auth_conte
 }
 
 /* module initialisation */
-NTSTATUS auth_init_trustdomain(struct auth_context *auth_context, const char* param, auth_methods **auth_method) 
+static NTSTATUS auth_init_trustdomain(struct auth_context *auth_context, const char* param, auth_methods **auth_method) 
 {
        if (!make_auth_methods(auth_context, auth_method)) {
                return NT_STATUS_NO_MEMORY;
@@ -598,3 +556,10 @@ NTSTATUS auth_init_trustdomain(struct auth_context *auth_context, const char* pa
        (*auth_method)->auth = check_trustdomain_security;
        return NT_STATUS_OK;
 }
+
+NTSTATUS auth_domain_init(void) 
+{
+       smb_register_auth(AUTH_INTERFACE_VERSION, "trustdomain", auth_init_trustdomain);
+       smb_register_auth(AUTH_INTERFACE_VERSION, "ntdomain", auth_init_ntdomain);
+       return NT_STATUS_OK;
+}