Copyright (C) Andrew Bartlett 2002
Copyright (C) Gerald (Jerry) Carter 2003-2005.
Copyright (C) Volker Lendecke 2004-2005
+ Copyright (C) Jeremy Allison 2006
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
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND
+struct dc_name_ip {
+ fstring name;
+ struct in_addr ip;
+};
+
+extern struct winbindd_methods reconnect_methods;
+extern BOOL override_logfile;
+
+static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain);
+static void set_dc_type_and_flags( struct winbindd_domain *domain );
+static BOOL get_dcs(TALLOC_CTX *mem_ctx, const struct winbindd_domain *domain,
+ struct dc_name_ip **dcs, int *num_dcs);
+
+/****************************************************************
+ Child failed to find DC's. Reschedule check.
+****************************************************************/
+
+static void msg_failed_to_go_online(int msg_type, struct process_id src,
+ void *buf, size_t len, void *private_data)
+{
+ struct winbindd_domain *domain;
+ const char *domainname = (const char *)buf;
+
+ if (buf == NULL || len == 0) {
+ return;
+ }
+
+ DEBUG(5,("msg_fail_to_go_online: received for domain %s.\n", domainname));
+
+ for (domain = domain_list(); domain; domain = domain->next) {
+ if (domain->internal) {
+ continue;
+ }
+
+ if (strequal(domain->name, domainname)) {
+ if (domain->online) {
+ /* We're already online, ignore. */
+ DEBUG(5,("msg_fail_to_go_online: domain %s "
+ "already online.\n", domainname));
+ continue;
+ }
+
+ /* Reschedule the online check. */
+ set_domain_offline(domain);
+ break;
+ }
+ }
+}
+
+/****************************************************************
+ Actually cause a reconnect from a message.
+****************************************************************/
+
+static void msg_try_to_go_online(int msg_type, struct process_id src,
+ void *buf, size_t len, void *private_data)
+{
+ struct winbindd_domain *domain;
+ const char *domainname = (const char *)buf;
+
+ if (buf == NULL || len == 0) {
+ return;
+ }
+
+ DEBUG(5,("msg_try_to_go_online: received for domain %s.\n", domainname));
+
+ for (domain = domain_list(); domain; domain = domain->next) {
+ if (domain->internal) {
+ continue;
+ }
+
+ if (strequal(domain->name, domainname)) {
+
+ if (domain->online) {
+ /* We're already online, ignore. */
+ DEBUG(5,("msg_try_to_go_online: domain %s "
+ "already online.\n", domainname));
+ continue;
+ }
+
+ /* This call takes care of setting the online
+ flag to true if we connected, or re-adding
+ the offline handler if false. Bypasses online
+ check so always does network calls. */
+
+ init_dc_connection_network(domain);
+ break;
+ }
+ }
+}
+
+/****************************************************************
+ Fork a child to try and contact a DC. Do this as contacting a
+ DC requires blocking lookups and we don't want to block our
+ parent.
+****************************************************************/
+
+static BOOL fork_child_dc_connect(struct winbindd_domain *domain)
+{
+ struct dc_name_ip *dcs = NULL;
+ int num_dcs = 0;
+ TALLOC_CTX *mem_ctx = NULL;
+ pid_t child_pid;
+ pid_t parent_pid = sys_getpid();
+
+ /* Stop zombies */
+ CatchChild();
+
+ message_block();
+
+ child_pid = sys_fork();
+
+ if (child_pid == -1) {
+ DEBUG(0, ("fork_child_dc_connect: Could not fork: %s\n", strerror(errno)));
+ message_unblock();
+ return False;
+ }
+
+ if (child_pid != 0) {
+ /* Parent */
+ message_register(MSG_WINBIND_TRY_TO_GO_ONLINE,
+ msg_try_to_go_online, NULL);
+ message_register(MSG_WINBIND_FAILED_TO_GO_ONLINE,
+ msg_failed_to_go_online, NULL);
+ message_unblock();
+ return True;
+ }
+
+ /* Child. */
+
+ /* Leave messages blocked - we will never process one. */
+
+ /* tdb needs special fork handling */
+ if (tdb_reopen_all(1) == -1) {
+ DEBUG(0,("tdb_reopen_all failed.\n"));
+ _exit(0);
+ }
+
+ close_conns_after_fork();
+
+ if (!override_logfile) {
+ pstring logfile;
+ pstr_sprintf(logfile, "%s/log.winbindd-dc-connect", dyn_LOGFILEBASE);
+ lp_set_logfile(logfile);
+ reopen_logs();
+ }
+
+ mem_ctx = talloc_init("fork_child_dc_connect");
+ if (!mem_ctx) {
+ DEBUG(0,("talloc_init failed.\n"));
+ _exit(0);
+ }
+
+ if ((!get_dcs(mem_ctx, domain, &dcs, &num_dcs)) || (num_dcs == 0)) {
+ /* Still offline ? Can't find DC's. */
+ message_send_pid(pid_to_procid(parent_pid), MSG_WINBIND_FAILED_TO_GO_ONLINE,
+ domain->name,
+ strlen(domain->name)+1, False);
+ _exit(0);
+ }
+
+ /* We got a DC. Send a message to our parent to get it to
+ try and do the same. */
+
+ message_send_pid(pid_to_procid(parent_pid), MSG_WINBIND_TRY_TO_GO_ONLINE,
+ domain->name,
+ strlen(domain->name)+1, False);
+ _exit(0);
+}
+
+/****************************************************************
+ Handler triggered if we're offline to try and detect a DC.
+****************************************************************/
+
+static void check_domain_online_handler(struct event_context *ctx,
+ struct timed_event *te,
+ const struct timeval *now,
+ void *private_data)
+{
+ struct winbindd_domain *domain =
+ (struct winbindd_domain *)private_data;
+
+ DEBUG(10,("check_domain_online_handler: called for domain %s\n",
+ domain->name ));
+
+ if (domain->check_online_event) {
+ TALLOC_FREE(domain->check_online_event);
+ }
+
+ /* Are we still in "startup" mode ? */
+
+ if (domain->startup && (now->tv_sec > domain->startup_time + 30)) {
+ /* No longer in "startup" mode. */
+ DEBUG(10,("check_domain_online_handler: domain %s no longer in 'startup' mode.\n",
+ domain->name ));
+ domain->startup = False;
+ }
+
+ /* We've been told to stay offline, so stay
+ that way. */
+
+ if (get_global_winbindd_state_offline()) {
+ DEBUG(10,("check_domain_online_handler: domain %s remaining globally offline\n",
+ domain->name ));
+ return;
+ }
+
+ /* Fork a child to test if it can contact a DC.
+ If it can then send ourselves a message to
+ cause a reconnect. */
+
+ fork_child_dc_connect(domain);
+}
+
+/****************************************************************
+ If we're still offline setup the timeout check.
+****************************************************************/
+
+static void calc_new_online_timeout_check(struct winbindd_domain *domain)
+{
+ int wbc = lp_winbind_cache_time();
+
+ if (domain->startup) {
+ domain->check_online_timeout = 10;
+ } else if (domain->check_online_timeout < wbc) {
+ domain->check_online_timeout = wbc;
+ }
+}
+
+/****************************************************************
+ Set domain offline and also add handler to put us back online
+ if we detect a DC.
+****************************************************************/
+
+void set_domain_offline(struct winbindd_domain *domain)
+{
+ DEBUG(10,("set_domain_offline: called for domain %s\n",
+ domain->name ));
+
+ if (domain->check_online_event) {
+ TALLOC_FREE(domain->check_online_event);
+ }
+
+ if (domain->internal) {
+ DEBUG(3,("set_domain_offline: domain %s is internal - logic error.\n",
+ domain->name ));
+ return;
+ }
+
+ domain->online = False;
+
+ /* Offline domains are always initialized. They're
+ re-initialized when they go back online. */
+
+ domain->initialized = True;
+
+ /* We only add the timeout handler that checks and
+ allows us to go back online when we've not
+ been told to remain offline. */
+
+ if (get_global_winbindd_state_offline()) {
+ DEBUG(10,("set_domain_offline: domain %s remaining globally offline\n",
+ domain->name ));
+ return;
+ }
+
+ /* If we're in statup mode, check again in 10 seconds, not in
+ lp_winbind_cache_time() seconds (which is 5 mins by default). */
+
+ calc_new_online_timeout_check(domain);
+
+ domain->check_online_event = event_add_timed(winbind_event_context(),
+ NULL,
+ timeval_current_ofs(domain->check_online_timeout,0),
+ "check_domain_online_handler",
+ check_domain_online_handler,
+ domain);
+
+ /* The above *has* to succeed for winbindd to work. */
+ if (!domain->check_online_event) {
+ smb_panic("set_domain_offline: failed to add online handler.\n");
+ }
+
+ DEBUG(10,("set_domain_offline: added event handler for domain %s\n",
+ domain->name ));
+}
+
+/****************************************************************
+ Set domain online - if allowed.
+****************************************************************/
+
+static void set_domain_online(struct winbindd_domain *domain)
+{
+ struct timeval now;
+
+ DEBUG(10,("set_domain_online: called for domain %s\n",
+ domain->name ));
+
+ if (domain->internal) {
+ DEBUG(3,("set_domain_online: domain %s is internal - logic error.\n",
+ domain->name ));
+ return;
+ }
+
+ if (get_global_winbindd_state_offline()) {
+ DEBUG(10,("set_domain_online: domain %s remaining globally offline\n",
+ domain->name ));
+ return;
+ }
+
+ /* If we are waiting to get a krb5 ticket, trigger immediately. */
+ GetTimeOfDay(&now);
+ set_event_dispatch_time(winbind_event_context(),
+ "krb5_ticket_gain_handler", now);
+
+ /* Ok, we're out of any startup mode now... */
+ domain->startup = False;
+
+ if (domain->online == False) {
+ /* We were offline - now we're online. We default to
+ using the MS-RPC backend if we started offline,
+ and if we're going online for the first time we
+ should really re-initialize the backends and the
+ checks to see if we're talking to an AD or NT domain.
+ */
+
+ domain->initialized = False;
+
+ /* 'reconnect_methods' is the MS-RPC backend. */
+ if (domain->backend == &reconnect_methods) {
+ domain->backend = NULL;
+ }
+ }
+
+ /* Ensure we have no online timeout checks. */
+ domain->check_online_timeout = 0;
+ if (domain->check_online_event) {
+ TALLOC_FREE(domain->check_online_event);
+ }
+
+ /* Ensure we ignore any pending child messages. */
+ message_deregister(MSG_WINBIND_TRY_TO_GO_ONLINE);
+ message_deregister(MSG_WINBIND_FAILED_TO_GO_ONLINE);
+
+ domain->online = True;
+}
+
+/****************************************************************
+ Requested to set a domain online.
+****************************************************************/
+
+void set_domain_online_request(struct winbindd_domain *domain)
+{
+ struct timeval tev;
+
+ DEBUG(10,("set_domain_online_request: called for domain %s\n",
+ domain->name ));
+
+ if (get_global_winbindd_state_offline()) {
+ DEBUG(10,("set_domain_online_request: domain %s remaining globally offline\n",
+ domain->name ));
+ return;
+ }
+
+ /* We've been told it's safe to go online and
+ try and connect to a DC. But I don't believe it
+ because network manager seems to lie.
+ Wait at least 5 seconds. Heuristics suck... */
+
+ if (!domain->check_online_event) {
+ /* If we've come from being globally offline we
+ don't have a check online event handler set.
+ We need to add one now we're trying to go
+ back online. */
+
+ DEBUG(10,("set_domain_online_request: domain %s was globally offline.\n",
+ domain->name ));
+
+ domain->check_online_event = event_add_timed(winbind_event_context(),
+ NULL,
+ timeval_current_ofs(5, 0),
+ "check_domain_online_handler",
+ check_domain_online_handler,
+ domain);
+
+ /* The above *has* to succeed for winbindd to work. */
+ if (!domain->check_online_event) {
+ smb_panic("set_domain_online_request: failed to add online handler.\n");
+ }
+ }
+
+ GetTimeOfDay(&tev);
+
+ /* Go into "startup" mode again. */
+ domain->startup_time = tev.tv_sec;
+ domain->startup = True;
+
+ tev.tv_sec += 5;
+
+ set_event_dispatch_time(winbind_event_context(), "check_domain_online_handler", tev);
+}
+
+/****************************************************************
+ Add -ve connection cache entries for domain and realm.
+****************************************************************/
+
+void winbind_add_failed_connection_entry(const struct winbindd_domain *domain,
+ const char *server,
+ NTSTATUS result)
+{
+ add_failed_connection_entry(domain->name, server, result);
+ /* If this was the saf name for the last thing we talked to,
+ remove it. */
+ saf_delete(domain->name);
+ if (*domain->alt_name) {
+ add_failed_connection_entry(domain->alt_name, server, result);
+ saf_delete(domain->alt_name);
+ }
+}
/* Choose between anonymous or authenticated connections. We need to use
an authenticated connection if DCs have the RestrictAnonymous registry
static void cm_get_ipc_userpass(char **username, char **domain, char **password)
{
- *username = secrets_fetch(SECRETS_AUTH_USER, NULL);
- *domain = secrets_fetch(SECRETS_AUTH_DOMAIN, NULL);
- *password = secrets_fetch(SECRETS_AUTH_PASSWORD, NULL);
+ *username = (char *)secrets_fetch(SECRETS_AUTH_USER, NULL);
+ *domain = (char *)secrets_fetch(SECRETS_AUTH_DOMAIN, NULL);
+ *password = (char *)secrets_fetch(SECRETS_AUTH_PASSWORD, NULL);
if (*username && **username) {
struct winbindd_domain *our_domain = NULL;
struct rpc_pipe_client *netlogon_pipe = NULL;
NTSTATUS result;
+ WERROR werr;
TALLOC_CTX *mem_ctx;
-
+ unsigned int orig_timeout;
fstring tmp;
char *p;
result = cm_connect_netlogon(our_domain, &netlogon_pipe);
if (!NT_STATUS_IS_OK(result)) {
+ talloc_destroy(mem_ctx);
return False;
}
- result = rpccli_netlogon_getdcname(netlogon_pipe, mem_ctx, our_domain->dcname,
+ /* This call can take a long time - allow the server to time out.
+ 35 seconds should do it. */
+
+ orig_timeout = cli_set_timeout(netlogon_pipe->cli, 35000);
+
+ werr = rpccli_netlogon_getdcname(netlogon_pipe, mem_ctx, our_domain->dcname,
domain->name, tmp);
+ /* And restore our original timeout. */
+ cli_set_timeout(netlogon_pipe->cli, orig_timeout);
+
talloc_destroy(mem_ctx);
- if (!NT_STATUS_IS_OK(result)) {
+ if (!W_ERROR_IS_OK(werr)) {
DEBUG(10, ("rpccli_netlogon_getdcname failed: %s\n",
- nt_errstr(result)));
+ dos_errstr(werr)));
return False;
}
struct sockaddr_in *peeraddr_in = (struct sockaddr_in *)&peeraddr;
+ DEBUG(10,("cm_prepare_connection: connecting to DC %s for domain %s\n",
+ controller, domain->name ));
+
machine_password = secrets_fetch_machine_password(lp_workgroup(), NULL,
NULL);
goto done;
}
- if ((*cli = cli_initialise(NULL)) == NULL) {
+ if ((*cli = cli_initialise()) == NULL) {
DEBUG(1, ("Could not cli_initialize\n"));
result = NT_STATUS_NO_MEMORY;
goto done;
"[%s]\\[%s]\n", controller, global_myname(),
ipc_domain, ipc_username));
- if (cli_session_setup(*cli, ipc_username,
- ipc_password, strlen(ipc_password)+1,
- ipc_password, strlen(ipc_password)+1,
- ipc_domain)) {
+ if (NT_STATUS_IS_OK(cli_session_setup(
+ *cli, ipc_username,
+ ipc_password, strlen(ipc_password)+1,
+ ipc_password, strlen(ipc_password)+1,
+ ipc_domain))) {
/* Successful logon with given username. */
cli_init_creds(*cli, ipc_username, ipc_domain, ipc_password);
goto session_setup_done;
/* Fall back to anonymous connection, this might fail later */
- if (cli_session_setup(*cli, "", NULL, 0, NULL, 0, "")) {
+ if (NT_STATUS_IS_OK(cli_session_setup(*cli, "", NULL, 0,
+ NULL, 0, ""))) {
DEBUG(5, ("Connected anonymously\n"));
cli_init_creds(*cli, "", "", "");
goto session_setup_done;
/* cache the server name for later connections */
saf_store( domain->name, (*cli)->desthost );
+ if (domain->alt_name && (*cli)->use_kerberos) {
+ saf_store( domain->alt_name, (*cli)->desthost );
+ }
if (!cli_send_tconX(*cli, "IPC$", "IPC", "", 0)) {
SAFE_FREE(ipc_password);
if (!NT_STATUS_IS_OK(result)) {
- add_failed_connection_entry(domain->name, controller, result);
+ winbind_add_failed_connection_entry(domain, controller, result);
if ((*cli) != NULL) {
cli_shutdown(*cli);
*cli = NULL;
return result;
}
-struct dc_name_ip {
- fstring name;
- struct in_addr ip;
-};
-
static BOOL add_one_dc_unique(TALLOC_CTX *mem_ctx, const char *domain_name,
const char *dcname, struct in_addr ip,
struct dc_name_ip **dcs, int *num)
{
*addrs = TALLOC_REALLOC_ARRAY(mem_ctx, *addrs, struct sockaddr_in, (*num)+1);
- if (*addrs == NULL)
+ if (*addrs == NULL) {
+ *num = 0;
return False;
+ }
(*addrs)[*num].sin_family = PF_INET;
putip((char *)&((*addrs)[*num].sin_addr), (char *)&ip);
convert an ip to a name
*******************************************************************/
-static BOOL dcip_to_name( const char *domainname, const char *realm,
- const DOM_SID *sid, struct in_addr ip, fstring name )
+static BOOL dcip_to_name(const struct winbindd_domain *domain, struct in_addr ip, fstring name )
{
struct ip_service ip_list;
ip_list.ip = ip;
ip_list.port = 0;
- /* try GETDC requests first */
+#ifdef WITH_ADS
+ /* For active directory servers, try to get the ldap server name.
+ None of these failures should be considered critical for now */
+
+ if (lp_security() == SEC_ADS) {
+ ADS_STRUCT *ads;
+
+ ads = ads_init(domain->alt_name, domain->name, NULL);
+ ads->auth.flags |= ADS_AUTH_NO_BIND;
+
+ if (ads_try_connect( ads, inet_ntoa(ip) ) ) {
+ /* We got a cldap packet. */
+ fstrcpy(name, ads->config.ldap_server_name);
+ namecache_store(name, 0x20, 1, &ip_list);
+
+ DEBUG(10,("dcip_to_name: flags = 0x%x\n", (unsigned int)ads->config.flags));
+
+ if (domain->primary && (ads->config.flags & ADS_KDC) && ads_closest_dc(ads)) {
+ char *sitename = sitename_fetch(ads->config.realm);
+
+ /* We're going to use this KDC for this realm/domain.
+ If we are using sites, then force the krb5 libs
+ to use this KDC. */
+
+ create_local_private_krb5_conf_for_domain(domain->alt_name,
+ domain->name,
+ sitename,
+ ip);
+
+ SAFE_FREE(sitename);
+ /* Ensure we contact this DC also. */
+ saf_store( domain->name, name);
+ saf_store( domain->alt_name, name);
+ }
+
+ ads_destroy( &ads );
+ return True;
+ }
+
+ ads_destroy( &ads );
+ }
+#endif
+
+ /* try GETDC requests next */
- if (send_getdc_request(ip, domainname, sid)) {
+ if (send_getdc_request(ip, domain->name, &domain->sid)) {
int i;
smb_msleep(100);
for (i=0; i<5; i++) {
- if (receive_getdc_response(ip, domainname, name)) {
+ if (receive_getdc_response(ip, domain->name, name)) {
namecache_store(name, 0x20, 1, &ip_list);
return True;
}
/* try node status request */
- if ( name_status_find(domainname, 0x1c, 0x20, ip, name) ) {
- namecache_store(name, 0x20, 1, &ip_list);
- return True;
- }
-
-#ifdef WITH_ADS
- /* for active directory servers, try to get the ldap server name.
- None of these failure should be considered critical for now */
-
- if ( lp_security() == SEC_ADS )
- {
- ADS_STRUCT *ads;
-
- ads = ads_init( realm, domainname, NULL );
- ads->auth.flags |= ADS_AUTH_NO_BIND;
-
- if ( !ads_try_connect( ads, inet_ntoa(ip) ) ) {
- ads_destroy( &ads );
- return False;
- }
-
- fstrcpy(name, ads->config.ldap_server_name);
+ if ( name_status_find(domain->name, 0x1c, 0x20, ip, name) ) {
namecache_store(name, 0x20, 1, &ip_list);
-
- ads_destroy( &ads );
return True;
}
-#endif
-
return False;
}
int iplist_size = 0;
int i;
BOOL is_our_domain;
-
+ enum security_types sec = (enum security_types)lp_security();
is_our_domain = strequal(domain->name, lp_workgroup());
return True;
}
- /* try standard netbios queries first */
+ if (sec == SEC_ADS) {
+ char *sitename = NULL;
+
+ /* We need to make sure we know the local site before
+ doing any DNS queries, as this will restrict the
+ get_sorted_dc_list() call below to only fetching
+ DNS records for the correct site. */
+
+ /* Find any DC to get the site record.
+ We deliberately don't care about the
+ return here. */
+
+ get_dc_name(domain->name, domain->alt_name, dcname, &ip);
+
+ sitename = sitename_fetch(domain->alt_name);
+ if (sitename) {
- get_sorted_dc_list(domain->name, &ip_list, &iplist_size, False);
+ /* Do the site-specific AD dns lookup first. */
+ get_sorted_dc_list(domain->alt_name, sitename, &ip_list, &iplist_size, True);
- /* check for security = ads and use DNS if we can */
+ for ( i=0; i<iplist_size; i++ ) {
+ add_one_dc_unique(mem_ctx, domain->name, inet_ntoa(ip_list[i].ip),
+ ip_list[i].ip, dcs, num_dcs);
+ }
+
+ SAFE_FREE(ip_list);
+ SAFE_FREE(sitename);
+ iplist_size = 0;
+ }
+
+ /* Now we add DCs from the main AD dns lookup. */
+ get_sorted_dc_list(domain->alt_name, NULL, &ip_list, &iplist_size, True);
+
+ for ( i=0; i<iplist_size; i++ ) {
+ add_one_dc_unique(mem_ctx, domain->name, inet_ntoa(ip_list[i].ip),
+ ip_list[i].ip, dcs, num_dcs);
+ }
+ }
- if ( iplist_size==0 && lp_security() == SEC_ADS )
- get_sorted_dc_list(domain->alt_name, &ip_list, &iplist_size, True);
+ /* try standard netbios queries if no ADS */
+
+ if (iplist_size==0) {
+ get_sorted_dc_list(domain->name, NULL, &ip_list, &iplist_size, False);
+ }
/* FIXME!! this is where we should re-insert the GETDC requests --jerry */
for (i=0; i<num_dcs; i++) {
- add_string_to_array(mem_ctx, dcs[i].name,
- &dcnames, &num_dcnames);
- add_sockaddr_to_array(mem_ctx, dcs[i].ip, 445,
- &addrs, &num_addrs);
+ if (!add_string_to_array(mem_ctx, dcs[i].name,
+ &dcnames, &num_dcnames)) {
+ return False;
+ }
+ if (!add_sockaddr_to_array(mem_ctx, dcs[i].ip, 445,
+ &addrs, &num_addrs)) {
+ return False;
+ }
- add_string_to_array(mem_ctx, dcs[i].name,
- &dcnames, &num_dcnames);
- add_sockaddr_to_array(mem_ctx, dcs[i].ip, 139,
- &addrs, &num_addrs);
+ if (!add_string_to_array(mem_ctx, dcs[i].name,
+ &dcnames, &num_dcnames)) {
+ return False;
+ }
+ if (!add_sockaddr_to_array(mem_ctx, dcs[i].ip, 139,
+ &addrs, &num_addrs)) {
+ return False;
+ }
}
if ((num_dcnames == 0) || (num_dcnames != num_addrs))
if ((addrs == NULL) || (dcnames == NULL))
return False;
- if ( !open_any_socket_out(addrs, num_addrs, 10000, &fd_index, fd) )
+ /* 5 second timeout. */
+ if ( !open_any_socket_out(addrs, num_addrs, 5000, &fd_index, fd) )
{
for (i=0; i<num_dcs; i++) {
- add_failed_connection_entry(domain->name,
+ DEBUG(10, ("find_new_dc: open_any_socket_out failed for "
+ "domain %s address %s. Error was %s\n",
+ domain->name, inet_ntoa(dcs[i].ip), strerror(errno) ));
+ winbind_add_failed_connection_entry(domain,
dcs[i].name, NT_STATUS_UNSUCCESSFUL);
}
return False;
}
/* Try to figure out the name */
- if (dcip_to_name( domain->name, domain->alt_name, &domain->sid,
- addr->sin_addr, dcname )) {
+ if (dcip_to_name( domain, addr->sin_addr, dcname )) {
return True;
}
/* We can not continue without the DC's name */
- add_failed_connection_entry(domain->name, dcs[fd_index].name,
+ winbind_add_failed_connection_entry(domain, dcs[fd_index].name,
NT_STATUS_UNSUCCESSFUL);
goto again;
}
char *saf_servername = saf_fetch( domain->name );
int retries;
- if ((mem_ctx = talloc_init("cm_open_connection")) == NULL)
+ if ((mem_ctx = talloc_init("cm_open_connection")) == NULL) {
+ SAFE_FREE(saf_servername);
+ set_domain_offline(domain);
return NT_STATUS_NO_MEMORY;
+ }
/* we have to check the server affinity cache here since
later we selecte a DC based on response time and not preference */
- if ( saf_servername )
- {
+ /* Check the negative connection cache
+ before talking to it. It going down may have
+ triggered the reconnection. */
+
+ if ( saf_servername && NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, saf_servername))) {
+
+ DEBUG(10,("cm_open_connection: saf_servername is '%s' for domain %s\n",
+ saf_servername, domain->name ));
+
/* convert an ip address to a name */
- if ( is_ipaddress( saf_servername ) )
- {
+ if ( is_ipaddress( saf_servername ) ) {
fstring saf_name;
struct in_addr ip;
ip = *interpret_addr2( saf_servername );
- if (dcip_to_name( domain->name, domain->alt_name,
- &domain->sid, ip, saf_name )) {
+ if (dcip_to_name( domain, ip, saf_name )) {
fstrcpy( domain->dcname, saf_name );
} else {
- add_failed_connection_entry(
- domain->name, saf_servername,
+ winbind_add_failed_connection_entry(
+ domain, saf_servername,
NT_STATUS_UNSUCCESSFUL);
}
- }
- else
- {
+ } else {
fstrcpy( domain->dcname, saf_servername );
}
result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
- if ((strlen(domain->dcname) > 0)
+ DEBUG(10,("cm_open_connection: dcname is '%s' for domain %s\n",
+ domain->dcname, domain->name ));
+
+ if (*domain->dcname
&& NT_STATUS_IS_OK(check_negative_conn_cache( domain->name, domain->dcname))
&& (resolve_name(domain->dcname, &domain->dcaddr.sin_addr, 0x20)))
{
int num_addrs = 0;
int dummy = 0;
- add_sockaddr_to_array(mem_ctx, domain->dcaddr.sin_addr, 445, &addrs, &num_addrs);
- add_sockaddr_to_array(mem_ctx, domain->dcaddr.sin_addr, 139, &addrs, &num_addrs);
+ if (!add_sockaddr_to_array(mem_ctx, domain->dcaddr.sin_addr, 445, &addrs, &num_addrs)) {
+ set_domain_offline(domain);
+ talloc_destroy(mem_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+ if (!add_sockaddr_to_array(mem_ctx, domain->dcaddr.sin_addr, 139, &addrs, &num_addrs)) {
+ set_domain_offline(domain);
+ talloc_destroy(mem_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
- if (!open_any_socket_out(addrs, num_addrs, 10000, &dummy, &fd)) {
- domain->online = False;
+ /* 5 second timeout. */
+ if (!open_any_socket_out(addrs, num_addrs, 5000, &dummy, &fd)) {
fd = -1;
}
}
to true, if a "WINBINDD_OFFLINE" entry
is found in the winbindd cache. */
set_global_winbindd_state_offline();
- domain->online = False;
break;
}
/* We're changing state from offline to online. */
set_global_winbindd_state_online();
}
- domain->online = True;
+ set_domain_online(domain);
+ } else {
+ /* Ensure we setup the retry handler. */
+ set_domain_offline(domain);
}
talloc_destroy(mem_ctx);
void invalidate_cm_connection(struct winbindd_cm_conn *conn)
{
+ /* We're closing down a possibly dead
+ connection. Don't have impossibly long (10s) timeouts. */
+
+ if (conn->cli) {
+ cli_set_timeout(conn->cli, 1000); /* 1 second. */
+ }
+
if (conn->samr_pipe != NULL) {
- cli_rpc_pipe_close(conn->samr_pipe);
+ if (!cli_rpc_pipe_close(conn->samr_pipe)) {
+ /* Ok, it must be dead. Drop timeout to 0.5 sec. */
+ if (conn->cli) {
+ cli_set_timeout(conn->cli, 500);
+ }
+ }
conn->samr_pipe = NULL;
}
if (conn->lsa_pipe != NULL) {
- cli_rpc_pipe_close(conn->lsa_pipe);
+ if (!cli_rpc_pipe_close(conn->lsa_pipe)) {
+ /* Ok, it must be dead. Drop timeout to 0.5 sec. */
+ if (conn->cli) {
+ cli_set_timeout(conn->cli, 500);
+ }
+ }
conn->lsa_pipe = NULL;
}
if (conn->netlogon_pipe != NULL) {
- cli_rpc_pipe_close(conn->netlogon_pipe);
+ if (!cli_rpc_pipe_close(conn->netlogon_pipe)) {
+ /* Ok, it must be dead. Drop timeout to 0.5 sec. */
+ if (conn->cli) {
+ cli_set_timeout(conn->cli, 500);
+ }
+ }
conn->netlogon_pipe = NULL;
}
static BOOL connection_ok(struct winbindd_domain *domain)
{
if (domain->conn.cli == NULL) {
- DEBUG(8, ("Connection to %s for domain %s has NULL "
+ DEBUG(8, ("connection_ok: Connection to %s for domain %s has NULL "
"cli!\n", domain->dcname, domain->name));
return False;
}
if (!domain->conn.cli->initialised) {
- DEBUG(3, ("Connection to %s for domain %s was never "
+ DEBUG(3, ("connection_ok: Connection to %s for domain %s was never "
"initialised!\n", domain->dcname, domain->name));
return False;
}
if (domain->conn.cli->fd == -1) {
- DEBUG(3, ("Connection to %s for domain %s has died or was "
+ DEBUG(3, ("connection_ok: Connection to %s for domain %s has died or was "
"never started (fd == -1)\n",
domain->dcname, domain->name));
return False;
}
+ if (domain->online == False) {
+ DEBUG(3, ("connection_ok: Domain %s is offline\n", domain->name));
+ return False;
+ }
+
return True;
}
-
-/* Initialize a new connection up to the RPC BIND. */
-static NTSTATUS init_dc_connection(struct winbindd_domain *domain)
+/* Initialize a new connection up to the RPC BIND.
+ Bypass online status check so always does network calls. */
+
+static NTSTATUS init_dc_connection_network(struct winbindd_domain *domain)
{
- if (connection_ok(domain))
+ NTSTATUS result;
+
+ /* Internal connections never use the network. */
+ if (domain->internal) {
+ domain->initialized = True;
return NT_STATUS_OK;
+ }
+
+ if (connection_ok(domain)) {
+ if (!domain->initialized) {
+ set_dc_type_and_flags(domain);
+ }
+ return NT_STATUS_OK;
+ }
invalidate_cm_connection(&domain->conn);
- return cm_open_connection(domain, &domain->conn);
+ result = cm_open_connection(domain, &domain->conn);
+
+ if (NT_STATUS_IS_OK(result) && !domain->initialized) {
+ set_dc_type_and_flags(domain);
+ }
+
+ return result;
+}
+
+NTSTATUS init_dc_connection(struct winbindd_domain *domain)
+{
+ if (domain->initialized && !domain->online) {
+ /* We check for online status elsewhere. */
+ return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
+ }
+
+ return init_dc_connection_network(domain);
+}
+
+/******************************************************************************
+ Set the trust flags (direction and forest location) for a domain
+******************************************************************************/
+
+static BOOL set_dc_type_and_flags_trustinfo( struct winbindd_domain *domain )
+{
+ struct winbindd_domain *our_domain;
+ NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
+ struct ds_domain_trust *domains = NULL;
+ int count = 0;
+ int i;
+ uint32 flags = (DS_DOMAIN_IN_FOREST |
+ DS_DOMAIN_DIRECT_OUTBOUND |
+ DS_DOMAIN_DIRECT_INBOUND);
+ struct rpc_pipe_client *cli;
+ TALLOC_CTX *mem_ctx = NULL;
+
+ DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s\n", domain->name ));
+
+ /* Our primary domain doesn't need to worry about trust flags.
+ Force it to go through the network setup */
+ if ( domain->primary ) {
+ return False;
+ }
+
+ our_domain = find_our_domain();
+
+ if ( !connection_ok(our_domain) ) {
+ DEBUG(3,("set_dc_type_and_flags_trustinfo: No connection to our domain!\n"));
+ return False;
+ }
+
+ /* This won't work unless our domain is AD */
+
+ if ( !our_domain->active_directory ) {
+ return False;
+ }
+
+ /* Use DsEnumerateDomainTrusts to get us the trust direction
+ and type */
+
+ result = cm_connect_netlogon(our_domain, &cli);
+
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(5, ("set_dc_type_and_flags_trustinfo: Could not open "
+ "a connection to %s for PIPE_NETLOGON (%s)\n",
+ domain->name, nt_errstr(result)));
+ return False;
+ }
+
+ if ( (mem_ctx = talloc_init("set_dc_type_and_flags_trustinfo")) == NULL ) {
+ DEBUG(0,("set_dc_type_and_flags_trustinfo: talloc_init() failed!\n"));
+ return False;
+ }
+
+ result = rpccli_ds_enum_domain_trusts(cli, mem_ctx,
+ cli->cli->desthost,
+ flags, &domains,
+ (unsigned int *)&count);
+
+ /* Now find the domain name and get the flags */
+
+ for ( i=0; i<count; i++ ) {
+ if ( strequal( domain->name, domains[i].netbios_domain ) ) {
+ domain->domain_flags = domains[i].flags;
+ domain->domain_type = domains[i].trust_type;
+ domain->domain_trust_attribs = domains[i].trust_attributes;
+
+ if ( domain->domain_type == DS_DOMAIN_TRUST_TYPE_UPLEVEL )
+ domain->active_directory = True;
+
+ /* This flag is only set if the domain is *our*
+ primary domain and the primary domain is in
+ native mode */
+
+ domain->native_mode = (domain->domain_flags & DS_DOMAIN_NATIVE_MODE);
+
+ DEBUG(5, ("set_dc_type_and_flags_trustinfo: domain %s is %sin "
+ "native mode.\n", domain->name,
+ domain->native_mode ? "" : "NOT "));
+
+ DEBUG(5,("set_dc_type_and_flags_trustinfo: domain %s is %s"
+ "running active directory.\n", domain->name,
+ domain->active_directory ? "" : "NOT "));
+
+
+ domain->initialized = True;
+
+ if ( !winbindd_can_contact_domain( domain) )
+ domain->internal = True;
+
+ break;
+ }
+ }
+
+ talloc_destroy( mem_ctx );
+
+ return domain->initialized;
}
/******************************************************************************
is native mode.
******************************************************************************/
-void set_dc_type_and_flags( struct winbindd_domain *domain )
+static void set_dc_type_and_flags_connect( struct winbindd_domain *domain )
{
NTSTATUS result;
DS_DOMINFO_CTR ctr;
TALLOC_CTX *mem_ctx = NULL;
struct rpc_pipe_client *cli;
POLICY_HND pol;
-
+
char *domain_name = NULL;
char *dns_name = NULL;
- DOM_SID *dom_sid = NULL;
+ char *forest_name = NULL;
+ DOM_SID *dom_sid = NULL;
ZERO_STRUCT( ctr );
- domain->native_mode = False;
- domain->active_directory = False;
-
- if (domain->internal) {
- domain->initialized = True;
+ if (!connection_ok(domain)) {
return;
}
- result = init_dc_connection(domain);
- if (!NT_STATUS_IS_OK(result)) {
- DEBUG(5, ("set_dc_type_and_flags: Could not open a connection "
- "to %s: (%s)\n", domain->name, nt_errstr(result)));
- domain->initialized = True;
- return;
- }
+ DEBUG(5, ("set_dc_type_and_flags_connect: domain %s\n", domain->name ));
cli = cli_rpc_pipe_open_noauth(domain->conn.cli, PI_LSARPC_DS,
&result);
if (cli == NULL) {
- DEBUG(5, ("set_dc_type_and_flags: Could not bind to "
+ DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
"PI_LSARPC_DS on domain %s: (%s)\n",
domain->name, nt_errstr(result)));
- domain->initialized = True;
- return;
+
+ /* if this is just a non-AD domain we need to continue
+ * identifying so that we can in the end return with
+ * domain->initialized = True - gd */
+
+ goto no_lsarpc_ds;
}
result = rpccli_ds_getprimarydominfo(cli, cli->cli->mem_ctx,
cli_rpc_pipe_close(cli);
if (!NT_STATUS_IS_OK(result)) {
- domain->initialized = True;
+ DEBUG(5, ("set_dc_type_and_flags_connect: rpccli_ds_getprimarydominfo "
+ "on domain %s failed: (%s)\n",
+ domain->name, nt_errstr(result)));
return;
}
if ((ctr.basic->flags & DSROLE_PRIMARY_DS_RUNNING) &&
- !(ctr.basic->flags & DSROLE_PRIMARY_DS_MIXED_MODE) )
+ !(ctr.basic->flags & DSROLE_PRIMARY_DS_MIXED_MODE)) {
domain->native_mode = True;
+ } else {
+ domain->native_mode = False;
+ }
+no_lsarpc_ds:
cli = cli_rpc_pipe_open_noauth(domain->conn.cli, PI_LSARPC, &result);
if (cli == NULL) {
- domain->initialized = True;
+ DEBUG(5, ("set_dc_type_and_flags_connect: Could not bind to "
+ "PI_LSARPC on domain %s: (%s)\n",
+ domain->name, nt_errstr(result)));
+ cli_rpc_pipe_close(cli);
return;
}
mem_ctx = talloc_init("set_dc_type_and_flags on domain %s\n",
domain->name);
if (!mem_ctx) {
- DEBUG(1, ("set_dc_type_and_flags: talloc_init() failed\n"));
+ DEBUG(1, ("set_dc_type_and_flags_connect: talloc_init() failed\n"));
cli_rpc_pipe_close(cli);
return;
}
to determine that the DC is active directory */
result = rpccli_lsa_query_info_policy2(cli, mem_ctx, &pol,
12, &domain_name,
- &dns_name, NULL,
+ &dns_name, &forest_name,
NULL, &dom_sid);
}
if (NT_STATUS_IS_OK(result)) {
+ domain->active_directory = True;
+
if (domain_name)
fstrcpy(domain->name, domain_name);
if (dns_name)
fstrcpy(domain->alt_name, dns_name);
+ if ( forest_name )
+ fstrcpy(domain->forest_name, forest_name);
+
if (dom_sid)
sid_copy(&domain->sid, dom_sid);
-
- domain->active_directory = True;
} else {
-
+ domain->active_directory = False;
+
result = rpccli_lsa_open_policy(cli, mem_ctx, True,
SEC_RIGHTS_MAXIMUM_ALLOWED,
&pol);
}
done:
+ DEBUG(5, ("set_dc_type_and_flags_connect: domain %s is %sin native mode.\n",
+ domain->name, domain->native_mode ? "" : "NOT "));
+
+ DEBUG(5,("set_dc_type_and_flags_connect: domain %s is %srunning active directory.\n",
+ domain->name, domain->active_directory ? "" : "NOT "));
+
cli_rpc_pipe_close(cli);
talloc_destroy(mem_ctx);
domain->initialized = True;
-
+}
+
+/**********************************************************************
+ Set the domain_flags (trust attributes, domain operating modes, etc...
+***********************************************************************/
+
+static void set_dc_type_and_flags( struct winbindd_domain *domain )
+{
+ /* we always have to contact our primary domain */
+
+ if ( domain->primary ) {
+ DEBUG(10,("set_dc_type_and_flags: setting up flags for "
+ "primary domain\n"));
+ set_dc_type_and_flags_connect( domain );
+ return;
+ }
+
+ /* Use our DC to get the information if possible */
+
+ if ( !set_dc_type_and_flags_trustinfo( domain ) ) {
+ /* Otherwise, fallback to contacting the
+ domain directly */
+ set_dc_type_and_flags_connect( domain );
+ }
+
return;
}
+
+
+/**********************************************************************
+***********************************************************************/
+
static BOOL cm_get_schannel_dcinfo(struct winbindd_domain *domain,
struct dcinfo **ppdc)
{
struct rpc_pipe_client **cli, POLICY_HND *sam_handle)
{
struct winbindd_cm_conn *conn;
- NTSTATUS result;
+ NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
fstring conn_pwd;
struct dcinfo *p_dcinfo;
/* Fall back to schannel if it's a W2K pre-SP1 box. */
if (!cm_get_schannel_dcinfo(domain, &p_dcinfo)) {
+ /* If this call fails - conn->cli can now be NULL ! */
DEBUG(10, ("cm_connect_sam: Could not get schannel auth info "
- "for domain %s, trying anon\n", conn->cli->domain));
+ "for domain %s, trying anon\n", domain->name));
goto anonymous;
}
conn->samr_pipe = cli_rpc_pipe_open_schannel_with_key
struct rpc_pipe_client **cli, POLICY_HND *lsa_policy)
{
struct winbindd_cm_conn *conn;
- NTSTATUS result;
+ NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
fstring conn_pwd;
struct dcinfo *p_dcinfo;
/* Fall back to schannel if it's a W2K pre-SP1 box. */
if (!cm_get_schannel_dcinfo(domain, &p_dcinfo)) {
+ /* If this call fails - conn->cli can now be NULL ! */
DEBUG(10, ("cm_connect_lsa: Could not get schannel auth info "
- "for domain %s, trying anon\n", conn->cli->domain));
+ "for domain %s, trying anon\n", domain->name));
goto anonymous;
}
conn->lsa_pipe = cli_rpc_pipe_open_schannel_with_key
done:
if (!NT_STATUS_IS_OK(result)) {
invalidate_cm_connection(conn);
- return NT_STATUS_UNSUCCESSFUL;
+ return result;
}
*cli = conn->lsa_pipe;
return NT_STATUS_OK;
}
- if (!get_trust_pw(domain->name, mach_pwd, &sec_chan_type)) {
+ if (domain->primary && !get_trust_pw(domain->name, mach_pwd, &sec_chan_type)) {
return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
}
return result;
}
+ if ( !domain->primary ) {
+ /* Clear the schannel request bit and drop down */
+ neg_flags &= ~NETLOGON_NEG_SCHANNEL;
+ goto no_schannel;
+ }
+
if (lp_client_schannel() != False) {
neg_flags |= NETLOGON_NEG_SCHANNEL;
}
return NT_STATUS_ACCESS_DENIED;
}
+ no_schannel:
if ((lp_client_schannel() == False) ||
((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
/* We're done - just keep the existing connection to NETLOGON
git.samba.org / samba.git / blobdiff