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
#include "winbindd.h"
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_WINBIND
+
/* Global list of connections. Initially a DLIST but can become a hash
table or whatever later. */
fstring domain;
fstring controller;
fstring pipe_name;
+ size_t mutex_ref_count;
struct cli_state *cli;
POLICY_HND pol;
};
struct get_dc_name_cache *prev, *next;
};
+/*
+ find the DC for a domain using methods appropriate for a ADS domain
+*/
+static BOOL cm_ads_find_dc(const char *domain, struct in_addr *dc_ip, fstring srv_name)
+{
+ ADS_STRUCT *ads;
+ const char *realm = domain;
+
+ if (strcasecmp(realm, lp_workgroup()) == 0)
+ realm = lp_realm();
+
+ ads = ads_init(realm, domain, NULL);
+ if (!ads)
+ return False;
+
+ /* we don't need to bind, just connect */
+ ads->auth.flags |= ADS_AUTH_NO_BIND;
+
+ DEBUG(4,("cm_ads_find_dc: domain=%s\n", domain));
+
+#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 */
+ ads_connect(ads);
+#endif
+
+ if (!ads->config.realm)
+ return False;
+
+ fstrcpy(srv_name, ads->config.ldap_server_name);
+ strupper(srv_name);
+ *dc_ip = ads->ldap_ip;
+ ads_destroy(&ads);
+
+ DEBUG(4,("cm_ads_find_dc: using server='%s' IP=%s\n",
+ srv_name, inet_ntoa(*dc_ip)));
+
+ return True;
+}
+
+
+
static BOOL cm_get_dc_name(const char *domain, fstring srv_name, struct in_addr *ip_out)
{
static struct get_dc_name_cache *get_dc_name_cache;
struct get_dc_name_cache *dcc;
- struct in_addr *ip_list, dc_ip;
- int count, i;
+ struct in_addr dc_ip;
+ BOOL ret;
/* Check the cache for previous lookups */
DLIST_ADD(get_dc_name_cache, dcc);
- /* Lookup domain controller name */
-
- if (!get_dc_list(False, domain, &ip_list, &count)) {
- DEBUG(3, ("Could not look up dc's for domain %s\n", domain));
- return False;
- }
-
- /* Pick a nice close server */
- /* Look for DC on local net */
-
- for (i = 0; i < count; i++) {
- if (!is_local_net(ip_list[i]))
- continue;
-
- if (name_status_find(domain, 0x1c, 0x20, ip_list[i], srv_name)) {
- dc_ip = ip_list[i];
- goto done;
- }
- zero_ip(&ip_list[i]);
- }
-
- /*
- * Secondly try and contact a random PDC/BDC.
- */
-
- i = (sys_random() % count);
-
- if (!is_zero_ip(ip_list[i]) &&
- name_status_find(domain, 0x1c, 0x20,
- ip_list[i], srv_name)) {
- dc_ip = ip_list[i];
- goto done;
- }
- zero_ip(&ip_list[i]); /* Tried and failed. */
-
- /* Finally return first DC that we can contact */
+ zero_ip(&dc_ip);
- for (i = 0; i < count; i++) {
- if (is_zero_ip(ip_list[i]))
- continue;
+ ret = False;
+ if (lp_security() == SEC_ADS)
+ ret = cm_ads_find_dc(domain, &dc_ip, srv_name);
- if (name_status_find(domain, 0x1c, 0x20, ip_list[i], srv_name)) {
- dc_ip = ip_list[i];
- goto done;
- }
+ if (!ret) {
+ /* fall back on rpc methods if the ADS methods fail */
+ ret = rpc_find_dc(domain, srv_name, &dc_ip);
}
- /* No-one to talk to )-: */
- return False; /* Boo-hoo */
-
- 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. */
+ if (!ret)
+ return False;
/* We have a name so make the cache entry positive now */
-
fstrcpy(dcc->srv_name, srv_name);
DEBUG(3, ("cm_get_dc_name: Returning DC %s (%s) for domain %s\n", srv_name,
*ip_out = dc_ip;
- SAFE_FREE(ip_list);
-
return True;
}
*password = secrets_fetch(SECRETS_AUTH_PASSWORD, NULL);
if (*username && **username) {
- if (!*domain || !**domain) {
+
+ if (!*domain || !**domain)
*domain = smb_xstrdup(lp_workgroup());
- }
- DEBUG(3, ("IPC$ connections done by user %s\\%s\n", *domain, *username));
+ if (!*password || !**password)
+ *password = smb_xstrdup("");
+
+ DEBUG(3, ("IPC$ connections done by user %s\\%s\n",
+ *domain, *username));
+
} else {
DEBUG(3, ("IPC$ connections done anonymously\n"));
*username = smb_xstrdup("");
}
}
-/* Open a new smb pipe connection to a DC on a given domain. Cache
- negative creation attempts so we don't try and connect to broken
- machines too often. */
-
-#define FAILED_CONNECTION_CACHE_TIMEOUT 30 /* Seconds between attempts */
-
-struct failed_connection_cache {
- fstring domain_name;
- fstring controller;
- time_t lookup_time;
- NTSTATUS nt_status;
- struct failed_connection_cache *prev, *next;
-};
-
-static struct failed_connection_cache *failed_connection_cache;
-
-/* Add an entry to the failed conneciton cache */
-
-static void add_failed_connection_entry(struct winbindd_cm_conn *new_conn, NTSTATUS result) {
- struct failed_connection_cache *fcc;
-
- SMB_ASSERT(!NT_STATUS_IS_OK(result));
-
- /* Create negative lookup cache entry for this domain and controller */
-
- if (!(fcc = (struct failed_connection_cache *)
- malloc(sizeof(struct failed_connection_cache)))) {
- DEBUG(0, ("malloc failed in add_failed_connection_entry!\n"));
- return;
- }
-
- ZERO_STRUCTP(fcc);
-
- fstrcpy(fcc->domain_name, new_conn->domain);
- fstrcpy(fcc->controller, new_conn->controller);
- fcc->lookup_time = time(NULL);
- fcc->nt_status = result;
-
- DLIST_ADD(failed_connection_cache, fcc);
-}
-
/* Open a connction to the remote server, cache failures for 30 seconds */
-static NTSTATUS cm_open_connection(const char *domain,const char *pipe_name,
+static NTSTATUS cm_open_connection(const char *domain, const int pipe_index,
struct winbindd_cm_conn *new_conn)
{
- struct failed_connection_cache *fcc;
- extern pstring global_myname;
NTSTATUS result;
char *ipc_username, *ipc_domain, *ipc_password;
struct in_addr dc_ip;
+ int i;
+ BOOL retry = True;
ZERO_STRUCT(dc_ip);
fstrcpy(new_conn->domain, domain);
- fstrcpy(new_conn->pipe_name, pipe_name);
+ fstrcpy(new_conn->pipe_name, get_pipe_name_from_index(pipe_index));
- /* Look for a domain controller for this domain. Negative results
- are cached so don't bother applying the caching for this
- function just yet. */
+ /* connection failure cache has been moved inside of get_dc_name
+ so we can deal with half dead DC's --jerry */
if (!cm_get_dc_name(domain, new_conn->controller, &dc_ip)) {
result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
- add_failed_connection_entry(new_conn, result);
+ add_failed_connection_entry(domain, "", result);
return result;
}
- /* Return false if we have tried to look up this domain and netbios
- name before and failed. */
-
- for (fcc = failed_connection_cache; fcc; fcc = fcc->next) {
-
- if (!(strequal(domain, fcc->domain_name) &&
- strequal(new_conn->controller, fcc->controller)))
- continue; /* Not our domain */
-
- if ((time(NULL) - fcc->lookup_time) >
- FAILED_CONNECTION_CACHE_TIMEOUT) {
-
- /* Cache entry has expired, delete it */
-
- DEBUG(10, ("cm_open_connection cache entry expired for %s, %s\n", domain, new_conn->controller));
-
- DLIST_REMOVE(failed_connection_cache, fcc);
- free(fcc);
-
- break;
- }
-
- /* The timeout hasn't expired yet so return false */
-
- DEBUG(10, ("returning negative open_connection_cache entry for %s, %s\n", domain, new_conn->controller));
-
- result = fcc->nt_status;
- SMB_ASSERT(!NT_STATUS_IS_OK(result));
- return result;
- }
-
/* Initialise SMB connection */
cm_get_ipc_userpass(&ipc_username, &ipc_domain, &ipc_password);
DEBUG(5, ("connecting to %s from %s with username [%s]\\[%s]\n",
- new_conn->controller, global_myname, ipc_domain, ipc_username));
+ new_conn->controller, global_myname(), ipc_domain, ipc_username));
+
+ for (i = 0; retry && (i < 3); i++) {
+ BOOL got_mutex;
+ if (!(got_mutex = secrets_named_mutex(new_conn->controller, WINBIND_SERVER_MUTEX_WAIT_TIME))) {
+ DEBUG(0,("cm_open_connection: mutex grab failed for %s\n", new_conn->controller));
+ result = NT_STATUS_POSSIBLE_DEADLOCK;
+ continue;
+ }
+
+ result = cli_full_connection(&new_conn->cli, global_myname(), new_conn->controller,
+ &dc_ip, 0, "IPC$", "IPC", ipc_username, ipc_domain,
+ ipc_password, CLI_FULL_CONNECTION_ANNONYMOUS_FALLBACK, &retry);
+
+ secrets_named_mutex_release(new_conn->controller);
- result = cli_full_connection(&(new_conn->cli), global_myname, new_conn->controller,
- &dc_ip, 0, "IPC$",
- "IPC", ipc_username, ipc_domain,
- ipc_password, strlen(ipc_password));
+ if (NT_STATUS_IS_OK(result))
+ break;
+ }
SAFE_FREE(ipc_username);
SAFE_FREE(ipc_domain);
SAFE_FREE(ipc_password);
if (!NT_STATUS_IS_OK(result)) {
- add_failed_connection_entry(new_conn, result);
+ add_failed_connection_entry(domain, new_conn->controller, result);
return result;
}
- if (!cli_nt_session_open (new_conn->cli, pipe_name)) {
+ if ( !cli_nt_session_open (new_conn->cli, pipe_index) ) {
result = NT_STATUS_PIPE_NOT_AVAILABLE;
- add_failed_connection_entry(new_conn, result);
+ /*
+ * only cache a failure if we are not trying to open the
+ * **win2k** specific lsarpc UUID. This could be an NT PDC
+ * and therefore a failure is normal. This should probably
+ * be abstracted to a check for 2k specific pipes and wondering
+ * if the PDC is an NT4 box. but since there is only one 2k
+ * specific UUID right now, i'm not going to bother. --jerry
+ */
+ if ( !is_win2k_pipe(pipe_index) )
+ add_failed_connection_entry(domain, new_conn->controller, result);
cli_shutdown(new_conn->cli);
return result;
}
static BOOL connection_ok(struct winbindd_cm_conn *conn)
{
if (!conn) {
- smb_panic("Invalid paramater passed to conneciton_ok(): conn was NULL!\n");
+ smb_panic("Invalid parameter passed to connection_ok(): conn was NULL!\n");
+ return False;
+ }
+
+ if (!conn->cli) {
+ DEBUG(3, ("Connection to %s for domain %s (pipe %s) has NULL conn->cli!\n",
+ conn->controller, conn->domain, conn->pipe_name));
return False;
}
- if (!conn->cli || !conn->cli->initialised) {
+ if (!conn->cli->initialised) {
DEBUG(3, ("Connection to %s for domain %s (pipe %s) was never initialised!\n",
conn->controller, conn->domain, conn->pipe_name));
return False;
return True;
}
-/* Get a connection to the remote DC and open the pipe. If there is already a connection, use that */
+/* Search the cache for a connection. If there is a broken one,
+ shut it down properly and return NULL. */
-static NTSTATUS get_connection_from_cache(const char *domain, const char *pipe_name, struct winbindd_cm_conn **conn_out)
+static void find_cm_connection(const char *domain, const char *pipe_name,
+ struct winbindd_cm_conn **conn_out)
{
- struct winbindd_cm_conn *conn, conn_temp;
- NTSTATUS result;
+ struct winbindd_cm_conn *conn;
- for (conn = cm_conns; conn; conn = conn->next) {
+ for (conn = cm_conns; conn; ) {
if (strequal(conn->domain, domain) &&
strequal(conn->pipe_name, pipe_name)) {
if (!connection_ok(conn)) {
- if (conn->cli) {
+ /* Dead connection - remove it. */
+ struct winbindd_cm_conn *conn_temp = conn->next;
+ if (conn->cli)
cli_shutdown(conn->cli);
- }
- conn_temp.next = conn->next;
DLIST_REMOVE(cm_conns, conn);
SAFE_FREE(conn);
- conn = &conn_temp; /* Just to keep the loop moving */
+ conn = conn_temp; /* Keep the loop moving */
+ continue;
} else {
break;
}
}
+ conn = conn->next;
}
-
- if (!conn) {
- if (!(conn = (struct winbindd_cm_conn *) malloc(sizeof(struct winbindd_cm_conn))))
- return NT_STATUS_NO_MEMORY;
+
+ *conn_out = conn;
+}
+
+/* Initialize a new connection up to the RPC BIND. */
+
+static NTSTATUS new_cm_connection(const char *domain, const char *pipe_name,
+ struct winbindd_cm_conn **conn_out)
+{
+ struct winbindd_cm_conn *conn;
+ NTSTATUS result;
+
+ if (!(conn = malloc(sizeof(*conn))))
+ return NT_STATUS_NO_MEMORY;
- ZERO_STRUCTP(conn);
+ ZERO_STRUCTP(conn);
- if (!NT_STATUS_IS_OK(result = cm_open_connection(domain, pipe_name, conn))) {
- DEBUG(3, ("Could not open a connection to %s for %s (%s)\n",
- domain, pipe_name, get_nt_error_msg(result)));
- SAFE_FREE(conn);
- return result;
- }
- DLIST_ADD(cm_conns, conn);
+ if (!NT_STATUS_IS_OK(result = cm_open_connection(domain, get_pipe_index(pipe_name), conn))) {
+ DEBUG(3, ("Could not open a connection to %s for %s (%s)\n",
+ domain, pipe_name, nt_errstr(result)));
+ SAFE_FREE(conn);
+ return result;
}
-
+ DLIST_ADD(cm_conns, conn);
+
*conn_out = conn;
return NT_STATUS_OK;
}
+/* Get a connection to the remote DC and open the pipe. If there is already a connection, use that */
+
+static NTSTATUS get_connection_from_cache(const char *domain, const char *pipe_name,
+ struct winbindd_cm_conn **conn_out)
+{
+ find_cm_connection(domain, pipe_name, conn_out);
+
+ if (*conn_out != NULL)
+ return NT_STATUS_OK;
+
+ return new_cm_connection(domain, pipe_name, conn_out);
+}
+
+/**********************************************************************************
+**********************************************************************************/
+
+BOOL cm_check_for_native_mode_win2k( const char *domain )
+{
+ NTSTATUS result;
+ struct winbindd_cm_conn conn;
+ DS_DOMINFO_CTR ctr;
+ BOOL ret = False;
+
+ ZERO_STRUCT( conn );
+ ZERO_STRUCT( ctr );
+
+
+ if ( !NT_STATUS_IS_OK(result = cm_open_connection(domain, PI_LSARPC_DS, &conn)) ) {
+ DEBUG(5, ("cm_check_for_native_mode_win2k: Could not open a connection to %s for PIPE_LSARPC (%s)\n",
+ domain, nt_errstr(result)));
+ return False;
+ }
+
+ if ( conn.cli ) {
+ if ( !NT_STATUS_IS_OK(cli_ds_getprimarydominfo( conn.cli,
+ conn.cli->mem_ctx, DsRolePrimaryDomainInfoBasic, &ctr)) ) {
+ ret = False;
+ goto done;
+ }
+ }
+
+ if ( (ctr.basic->flags & DSROLE_PRIMARY_DS_RUNNING)
+ && !(ctr.basic->flags & DSROLE_PRIMARY_DS_MIXED_MODE) )
+ ret = True;
+
+done:
+ if ( conn.cli )
+ cli_shutdown( conn.cli );
+
+ return ret;
+}
+
+
+
/* Return a LSA policy handle on a domain */
-CLI_POLICY_HND *cm_get_lsa_handle(char *domain)
+CLI_POLICY_HND *cm_get_lsa_handle(const char *domain)
{
struct winbindd_cm_conn *conn;
uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED;
/* Look for existing connections */
- if (!NT_STATUS_IS_OK(result = get_connection_from_cache(domain, PIPE_LSARPC, &conn))) {
+ if (!NT_STATUS_IS_OK(result = get_connection_from_cache(domain, PIPE_LSARPC, &conn)))
return NULL;
+
+ /* This *shitty* code needs scrapping ! JRA */
+ if (policy_handle_is_valid(&conn->pol)) {
+ hnd.pol = conn->pol;
+ hnd.cli = conn->cli;
+ return &hnd;
}
result = cli_lsa_open_policy(conn->cli, conn->cli->mem_ctx, False,
if (!NT_STATUS_IS_OK(result)) {
/* Hit the cache code again. This cleans out the old connection and gets a new one */
if (conn->cli->fd == -1) { /* Try again, if the remote host disapeared */
- if (!NT_STATUS_IS_OK(result = get_connection_from_cache(domain, PIPE_LSARPC, &conn))) {
+ if (!NT_STATUS_IS_OK(result = get_connection_from_cache(domain, PIPE_LSARPC, &conn)))
return NULL;
- }
result = cli_lsa_open_policy(conn->cli, conn->cli->mem_ctx, False,
des_access, &conn->pol);
/* Look for existing connections */
- if (!NT_STATUS_IS_OK(result = get_connection_from_cache(domain, PIPE_SAMR, &conn))) {
+ if (!NT_STATUS_IS_OK(result = get_connection_from_cache(domain, PIPE_SAMR, &conn)))
return NULL;
- }
+ /* This *shitty* code needs scrapping ! JRA */
+ if (policy_handle_is_valid(&conn->pol)) {
+ hnd.pol = conn->pol;
+ hnd.cli = conn->cli;
+ return &hnd;
+ }
result = cli_samr_connect(conn->cli, conn->cli->mem_ctx,
des_access, &conn->pol);
if (!NT_STATUS_IS_OK(result)) {
/* Hit the cache code again. This cleans out the old connection and gets a new one */
if (conn->cli->fd == -1) { /* Try again, if the remote host disapeared */
- if (!NT_STATUS_IS_OK(result = get_connection_from_cache(domain, PIPE_SAMR, &conn))) {
+ if (!NT_STATUS_IS_OK(result = get_connection_from_cache(domain, PIPE_SAMR, &conn)))
return NULL;
- }
result = cli_samr_connect(conn->cli, conn->cli->mem_ctx,
des_access, &conn->pol);
return &hnd;
}
-#if 0 /* This code now *well* out of date */
-
-/* Return a SAM domain policy handle on a domain */
+/* Get a handle on a netlogon pipe. This is a bit of a hack to re-use the
+ netlogon pipe as no handle is returned. */
-CLI_POLICY_HND *cm_get_sam_dom_handle(char *domain, DOM_SID *domain_sid)
+NTSTATUS cm_get_netlogon_cli(const char *domain,
+ const unsigned char *trust_passwd,
+ uint32 sec_channel_type,
+ BOOL fresh,
+ struct cli_state **cli)
{
- struct winbindd_cm_conn *conn, *basic_conn = NULL;
- static CLI_POLICY_HND hnd;
- NTSTATUS result;
- uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED;
-
- /* Look for existing connections */
-
- for (conn = cm_conns; conn; conn = conn->next) {
- if (strequal(conn->domain, domain) &&
- strequal(conn->pipe_name, PIPE_SAMR) &&
- conn->pipe_data.samr.pipe_type == SAM_PIPE_DOM) {
-
- if (!connection_ok(conn)) {
- /* Shutdown cli? Free conn? Allow retry of DC? */
- DLIST_REMOVE(cm_conns, conn);
- return NULL;
- }
-
- goto ok;
- }
- }
-
- /* Create a basic handle to open a domain handle from */
-
- if (!cm_get_sam_handle(domain))
- return False;
-
- for (conn = cm_conns; conn; conn = conn->next) {
- if (strequal(conn->domain, domain) &&
- strequal(conn->pipe_name, PIPE_SAMR) &&
- conn->pipe_data.samr.pipe_type == SAM_PIPE_BASIC)
- basic_conn = conn;
- }
-
- if (!(conn = (struct winbindd_cm_conn *)
- malloc(sizeof(struct winbindd_cm_conn))))
- return NULL;
-
- ZERO_STRUCTP(conn);
-
- fstrcpy(conn->domain, basic_conn->domain);
- fstrcpy(conn->controller, basic_conn->controller);
- fstrcpy(conn->pipe_name, basic_conn->pipe_name);
-
- conn->pipe_data.samr.pipe_type = SAM_PIPE_DOM;
- conn->cli = basic_conn->cli;
-
- result = cli_samr_open_domain(conn->cli, conn->cli->mem_ctx,
- &basic_conn->pol, des_access,
- domain_sid, &conn->pol);
-
- if (!NT_STATUS_IS_OK(result))
- return NULL;
-
- /* Add to list */
-
- DLIST_ADD(cm_conns, conn);
-
- ok:
- hnd.pol = conn->pol;
- hnd.cli = conn->cli;
+ NTSTATUS result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
+ struct winbindd_cm_conn *conn;
+ fstring lock_name;
+ BOOL got_mutex;
- return &hnd;
-}
+ if (!cli)
+ return NT_STATUS_INVALID_PARAMETER;
-/* Return a SAM policy handle on a domain user */
+ /* Open an initial conection - keep the mutex. */
-CLI_POLICY_HND *cm_get_sam_user_handle(char *domain, DOM_SID *domain_sid,
- uint32 user_rid)
-{
- struct winbindd_cm_conn *conn, *basic_conn = NULL;
- static CLI_POLICY_HND hnd;
- NTSTATUS result;
- uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED;
+ find_cm_connection(domain, PIPE_NETLOGON, &conn);
- /* Look for existing connections */
+ if ( fresh && (conn != NULL) ) {
+ cli_shutdown(conn->cli);
+ conn->cli = NULL;
- for (conn = cm_conns; conn; conn = conn->next) {
- if (strequal(conn->domain, domain) &&
- strequal(conn->pipe_name, PIPE_SAMR) &&
- conn->pipe_data.samr.pipe_type == SAM_PIPE_USER &&
- conn->pipe_data.samr.rid == user_rid) {
+ conn = NULL;
- if (!connection_ok(conn)) {
- /* Shutdown cli? Free conn? Allow retry of DC? */
- DLIST_REMOVE(cm_conns, conn);
- return NULL;
- }
-
- goto ok;
+ /* purge connection from cache */
+ find_cm_connection(domain, PIPE_NETLOGON, &conn);
+ if (conn != NULL) {
+ DEBUG(0,("Could not purge connection\n"));
+ return NT_STATUS_UNSUCCESSFUL;
}
}
- /* Create a domain handle to open a user handle from */
-
- if (!cm_get_sam_dom_handle(domain, domain_sid))
- return NULL;
-
- for (conn = cm_conns; conn; conn = conn->next) {
- if (strequal(conn->domain, domain) &&
- strequal(conn->pipe_name, PIPE_SAMR) &&
- conn->pipe_data.samr.pipe_type == SAM_PIPE_DOM)
- basic_conn = conn;
+ if (conn != NULL) {
+ *cli = conn->cli;
+ return NT_STATUS_OK;
}
-
- if (!basic_conn) {
- DEBUG(0, ("No domain sam handle was created!\n"));
- return NULL;
- }
-
- if (!(conn = (struct winbindd_cm_conn *)
- malloc(sizeof(struct winbindd_cm_conn))))
- return NULL;
-
- ZERO_STRUCTP(conn);
-
- fstrcpy(conn->domain, basic_conn->domain);
- fstrcpy(conn->controller, basic_conn->controller);
- fstrcpy(conn->pipe_name, basic_conn->pipe_name);
-
- conn->pipe_data.samr.pipe_type = SAM_PIPE_USER;
- conn->cli = basic_conn->cli;
- conn->pipe_data.samr.rid = user_rid;
- result = cli_samr_open_user(conn->cli, conn->cli->mem_ctx,
- &basic_conn->pol, des_access, user_rid,
- &conn->pol);
+ result = new_cm_connection(domain, PIPE_NETLOGON, &conn);
if (!NT_STATUS_IS_OK(result))
- return NULL;
-
- /* Add to list */
-
- DLIST_ADD(cm_conns, conn);
-
- ok:
- hnd.pol = conn->pol;
- hnd.cli = conn->cli;
-
- return &hnd;
-}
-
-/* Return a SAM policy handle on a domain group */
-
-CLI_POLICY_HND *cm_get_sam_group_handle(char *domain, DOM_SID *domain_sid,
- uint32 group_rid)
-{
- struct winbindd_cm_conn *conn, *basic_conn = NULL;
- static CLI_POLICY_HND hnd;
- NTSTATUS result;
- uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED;
-
- /* Look for existing connections */
-
- for (conn = cm_conns; conn; conn = conn->next) {
- if (strequal(conn->domain, domain) &&
- strequal(conn->pipe_name, PIPE_SAMR) &&
- conn->pipe_data.samr.pipe_type == SAM_PIPE_GROUP &&
- conn->pipe_data.samr.rid == group_rid) {
-
- if (!connection_ok(conn)) {
- /* Shutdown cli? Free conn? Allow retry of DC? */
- DLIST_REMOVE(cm_conns, conn);
- return NULL;
- }
-
- goto ok;
- }
- }
-
- /* Create a domain handle to open a user handle from */
-
- if (!cm_get_sam_dom_handle(domain, domain_sid))
- return NULL;
-
- for (conn = cm_conns; conn; conn = conn->next) {
- if (strequal(conn->domain, domain) &&
- strequal(conn->pipe_name, PIPE_SAMR) &&
- conn->pipe_data.samr.pipe_type == SAM_PIPE_DOM)
- basic_conn = conn;
- }
-
- if (!basic_conn) {
- DEBUG(0, ("No domain sam handle was created!\n"));
- return NULL;
- }
-
- if (!(conn = (struct winbindd_cm_conn *)
- malloc(sizeof(struct winbindd_cm_conn))))
- return NULL;
-
- ZERO_STRUCTP(conn);
-
- fstrcpy(conn->domain, basic_conn->domain);
- fstrcpy(conn->controller, basic_conn->controller);
- fstrcpy(conn->pipe_name, basic_conn->pipe_name);
+ return result;
- conn->pipe_data.samr.pipe_type = SAM_PIPE_GROUP;
- conn->cli = basic_conn->cli;
- conn->pipe_data.samr.rid = group_rid;
-
- result = cli_samr_open_group(conn->cli, conn->cli->mem_ctx,
- &basic_conn->pol, des_access, group_rid,
- &conn->pol);
-
- if (!NT_STATUS_IS_OK(result))
- return NULL;
-
- /* Add to list */
-
- DLIST_ADD(cm_conns, conn);
-
- ok:
- hnd.pol = conn->pol;
- hnd.cli = conn->cli;
-
- return &hnd;
-}
-
-#endif
-
-/* Get a handle on a netlogon pipe. This is a bit of a hack to re-use the
- netlogon pipe as no handle is returned. */
-
-NTSTATUS cm_get_netlogon_cli(char *domain, unsigned char *trust_passwd,
- struct cli_state **cli)
-{
- NTSTATUS result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
- struct winbindd_cm_conn *conn;
-
- if (!cli) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- /* Open an initial conection */
+ snprintf(lock_name, sizeof(lock_name), "NETLOGON\\%s", conn->controller);
- if (!NT_STATUS_IS_OK(result = get_connection_from_cache(domain, PIPE_NETLOGON, &conn))) {
- return result;
+ if (!(got_mutex = secrets_named_mutex(lock_name, WINBIND_SERVER_MUTEX_WAIT_TIME))) {
+ DEBUG(0,("cm_get_netlogon_cli: mutex grab failed for %s\n", conn->controller));
}
+
+ result = cli_nt_establish_netlogon(conn->cli, sec_channel_type, trust_passwd);
- result = new_cli_nt_setup_creds(conn->cli, trust_passwd);
-
+ if (got_mutex)
+ secrets_named_mutex_release(lock_name);
+
if (!NT_STATUS_IS_OK(result)) {
- DEBUG(0, ("error connecting to domain password server: %s\n",
- get_nt_error_msg(result)));
-
- /* Hit the cache code again. This cleans out the old connection and gets a new one */
- if (conn->cli->fd == -1) {
- if (!NT_STATUS_IS_OK(result = get_connection_from_cache(domain, PIPE_NETLOGON, &conn))) {
- return result;
- }
-
- /* Try again */
- result = new_cli_nt_setup_creds(conn->cli, trust_passwd);
- }
-
- if (!NT_STATUS_IS_OK(result)) {
- cli_shutdown(conn->cli);
- DLIST_REMOVE(cm_conns, conn);
- SAFE_FREE(conn);
- return result;
- }
+ cli_shutdown(conn->cli);
+ DLIST_REMOVE(cm_conns, conn);
+ SAFE_FREE(conn);
+ return result;
}
*cli = conn->cli;
else
DEBUG(0, ("\tNo active connections\n"));
}
+
+/* Close all cached connections */
+
+void winbindd_cm_flush(void)
+{
+ struct winbindd_cm_conn *conn, tmp;
+
+ /* Flush connection cache */
+
+ for (conn = cm_conns; conn; conn = conn->next) {
+
+ if (!connection_ok(conn))
+ continue;
+
+ DEBUG(10, ("Closing connection to %s on %s\n",
+ conn->pipe_name, conn->controller));
+
+ if (conn->cli)
+ cli_shutdown(conn->cli);
+
+ tmp.next = conn->next;
+
+ DLIST_REMOVE(cm_conns, conn);
+ SAFE_FREE(conn);
+ conn = &tmp;
+ }
+
+ /* Flush failed connection cache */
+
+ flush_negative_conn_cache();
+}
git.samba.org / nivanova / samba-autobuild / .git / blobdiff