rpc_client/cli_wkssvc.o rpc_client/cli_dfs.o \
rpc_client/cli_reg.o rpc_client/cli_pipe.o \
rpc_client/cli_spoolss.o rpc_client/cli_spoolss_notify.o \
- rpc_client/cli_ds.o
+ rpc_client/cli_ds.o libsmb/namequery_dc.o
LIBMSRPC_SERVER_OBJ = libsmb/trust_passwd.o
$(REGOBJS_OBJ)
-RPC_CLIENT_OBJ = rpc_client/cli_pipe.o
+RPC_CLIENT_OBJ = rpc_client/cli_pipe.o
LOCKING_OBJ = locking/locking.o locking/brlock.o locking/posix.o
SMBCACLS_OBJ = utils/smbcacls.o $(LOCKING_OBJ) $(LIBSMB_OBJ) $(PARAM_OBJ) \
$(UBIQX_OBJ) $(LIB_OBJ) $(RPC_PARSE_OBJ) $(PASSDB_GET_SET_OBJ) \
- $(LIBMSRPC_OBJ)
+ $(LIBMSRPC_OBJ) $(SECRETS_OBJ)
TALLOCTORT_OBJ = lib/talloctort.o $(LIB_OBJ) $(PARAM_OBJ) $(UBIQX_OBJ)
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;
- BOOL list_ordered;
-
- /*
- * 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;
-
- if (use_pdc_only) {
- struct in_addr pdc_ip;
-
- if (!get_pdc_ip(domain, &pdc_ip))
- return NT_STATUS_NO_LOGON_SERVERS;
-
- if ((ip_list = (struct in_addr *)
- malloc(sizeof(struct in_addr))) == NULL)
- return NT_STATUS_NO_MEMORY;
-
- ip_list[0] = pdc_ip;
- count = 1;
-
- } else {
- if (!get_dc_list(domain, &ip_list, &count, &list_ordered))
- return NT_STATUS_NO_LOGON_SERVERS;
- }
+ struct in_addr dc_ip;
+ fstring srv_name;
- /*
- * 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( !list_ordered && !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;
- }
+ if ( !rpc_find_dc(lp_workgroup(), 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;
}
-
- SAFE_FREE(ip_list);
- return nt_status;
+
+ return attempt_connect_to_dc( cli, domain, &dc_ip, setup_creds_as,
+ sec_chan, trust_passwd );
}
/***********************************************************************
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 {
int i;
BOOL retry = True;
#define MAX_HOURS_LEN 32
+/*
+ * window during which we must talk to the PDC to avoid
+ * sam sync delays; expressed in seconds (15 minutes is the
+ * default period for SAM replication under Windows NT 4.0
+ */
+#define SAM_SYNC_WINDOW 900
+
+
#ifndef MAXSUBAUTHS
#define MAXSUBAUTHS 15 /* max sub authorities in a SID */
#endif
--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ Winbind daemon connection manager
+
+ Copyright (C) Tim Potter 2001
+ Copyright (C) Andrew Bartlett 2002
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+
+#include "includes.h"
+
+
+/*
+ find the DC for a domain using methods appropriate for a RPC domain
+*/
+BOOL rpc_find_dc(const char *domain, fstring srv_name, struct in_addr *ip_out)
+{
+ struct in_addr *ip_list = NULL, dc_ip, exclude_ip;
+ int count, i;
+ BOOL list_ordered;
+ BOOL use_pdc_only;
+
+ zero_ip(&exclude_ip);
+
+ use_pdc_only = must_use_pdc(domain);
+
+ /* Lookup domain controller name */
+
+ if ( use_pdc_only && get_pdc_ip(domain, &dc_ip) ) {
+ DEBUG(10,("rpc_find_dc: Atempting to lookup PDC to avoid sam sync delays\n"));
+
+ if (name_status_find(domain, 0x1c, 0x20, dc_ip, srv_name)) {
+ goto done;
+ }
+ /* Didn't get name, remember not to talk to this DC. */
+ exclude_ip = dc_ip;
+ }
+
+ /* get a list of all domain controllers */
+
+ if (!get_dc_list( domain, &ip_list, &count, &list_ordered) ) {
+ DEBUG(3, ("Could not look up dc's for domain %s\n", domain));
+ return False;
+ }
+
+ /* Remove the entry we've already failed with (should be the PDC). */
+
+ if ( use_pdc_only ) {
+ for (i = 0; i < count; i++) {
+ if (ip_equal( exclude_ip, ip_list[i]))
+ zero_ip(&ip_list[i]);
+ }
+ }
+
+ /* Pick a nice close server, but only if the list was not ordered */
+ if (!list_ordered && (count > 1) ) {
+ qsort(ip_list, count, sizeof(struct in_addr), QSORT_CAST ip_compare);
+ }
+
+ for (i = 0; i < count; i++) {
+ if (is_zero_ip(ip_list[i]))
+ continue;
+
+ if (name_status_find(domain, 0x1c, 0x20, ip_list[i], srv_name)) {
+ dc_ip = ip_list[i];
+ goto done;
+ }
+ }
+
+
+ SAFE_FREE(ip_list);
+
+ return False;
+done:
+ /* We have the netbios name and IP address of a domain controller.
+ Ideally we should sent a SAMLOGON request to determine whether
+ the DC is alive and kicking. If we can catch a dead DC before
+ performing a cli_connect() we can avoid a 30-second timeout. */
+
+ DEBUG(3, ("rpc_find_dc: Returning DC %s (%s) for domain %s\n", srv_name,
+ inet_ntoa(dc_ip), domain));
+
+ *ip_out = dc_ip;
+
+ SAFE_FREE(ip_list);
+
+ return True;
+}
+
return True;
}
-/*
- find the DC for a domain using methods appropriate for a RPC domain
-*/
-static BOOL cm_rpc_find_dc(const char *domain, struct in_addr *dc_ip, fstring srv_name)
-{
- struct in_addr *ip_list = NULL;
- int count, i;
- BOOL list_ordered;
-
- if (!get_dc_list(domain, &ip_list, &count, &list_ordered)) {
- struct in_addr pdc_ip;
-
- if (!get_pdc_ip(domain, &pdc_ip)) {
- DEBUG(3, ("Could not look up any DCs for domain %s\n",
- domain));
- return False;
- }
-
- ip_list = (struct in_addr *)malloc(sizeof(struct in_addr));
-
- if (!ip_list)
- return False;
-
- ip_list[0] = pdc_ip;
- count = 1;
- }
-
- /* Pick a nice close server, but only if the list was not ordered */
- if (!list_ordered && (count > 1) ) {
- qsort(ip_list, count, sizeof(struct in_addr), QSORT_CAST ip_compare);
- }
-
- for (i = 0; i < count; i++) {
- if (is_zero_ip(ip_list[i]))
- continue;
-
- if (name_status_find(domain, 0x1c, 0x20, ip_list[i], srv_name)) {
- *dc_ip = ip_list[i];
- SAFE_FREE(ip_list);
- return True;
- }
- }
-
-
- SAFE_FREE(ip_list);
-
- return False;
-}
static BOOL cm_get_dc_name(const char *domain, fstring srv_name, struct in_addr *ip_out)
}
if (!ret) {
/* fall back on rpc methods if the ADS methods fail */
- ret = cm_rpc_find_dc(domain, &dc_ip, srv_name);
+ ret = rpc_find_dc(domain, srv_name, &dc_ip);
}
if (!ret) {
tdb_unlock_bystring(tdb, name);
DEBUG(10,("secrets_named_mutex: released mutex for %s\n", name ));
}
+
+/*********************************************************
+ Check to see if we must talk to the PDC to avoid sam
+ sync delays
+ ********************************************************/
+
+BOOL must_use_pdc( const char *domain )
+{
+ time_t now = time(NULL);
+ time_t last_change_time;
+ unsigned char passwd[16];
+
+ if ( !secrets_fetch_trust_account_password(domain, passwd, &last_change_time) )
+ return False;
+
+ /*
+ * If the time the machine password has changed
+ * was less than about 15 minutes 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 ( now - last_change_time < SAM_SYNC_WINDOW )
+ return True;
+
+ return False;
+
+}
+
git.samba.org / ira / wip.git / commitdiff