r6747: first working version of cldapd server. It is missing 'sites' support, and
authorAndrew Tridgell <tridge@samba.org>
Thu, 12 May 2005 08:28:07 +0000 (08:28 +0000)
committerGerald (Jerry) Carter <jerry@samba.org>
Wed, 10 Oct 2007 18:16:41 +0000 (13:16 -0500)
filling in some of the returned parameters is quite rough, but it seems to work OK

source/cldap_server/cldap_server.c
source/cldap_server/cldap_server.h
source/cldap_server/config.mk
source/cldap_server/netlogon.c [new file with mode: 0644]
source/include/structs.h

index 8397a624c052b5321e1075b6d7007f2e6a5adec6..ad4779da01260e0fd1291fe0bfae531df6d464bd 100644 (file)
@@ -27,7 +27,6 @@
 #include "smbd/service_task.h"
 #include "cldap_server/cldap_server.h"
 
-
 /*
   handle incoming cldap requests
 */
@@ -35,16 +34,27 @@ static void cldapd_request_handler(struct cldap_socket *cldap,
                                   struct ldap_message *ldap_msg, 
                                   const char *src_address, int src_port)
 {
-       struct cldapd_server *cldapd = talloc_get_type(cldap->incoming.private,
-                                                      struct cldapd_server);
+       struct ldap_SearchRequest *search;
        if (ldap_msg->type != LDAP_TAG_SearchRequest) {
                DEBUG(0,("Invalid CLDAP request type %d from %s:%d\n", 
                         ldap_msg->type, src_address, src_port));
                return;
        }
-       DEBUG(0,("CLDAP search for '%s'\n", ldap_msg->r.SearchRequest.filter));
+
+       search = &ldap_msg->r.SearchRequest;
+
+       if (search->num_attributes == 1 &&
+           strcasecmp(search->attributes[0], "netlogon") == 0) {
+               cldapd_netlogon_request(cldap, ldap_msg->messageid,
+                                       search->filter, src_address, src_port);
+       } else {
+               DEBUG(0,("Unknown CLDAP search for '%s'\n", 
+                        ldap_msg->r.SearchRequest.filter));
+               cldap_empty_reply(cldap, ldap_msg->messageid, src_address, src_port);
+       }
 }
 
+
 /*
   start listening on the given address
 */
@@ -81,7 +91,7 @@ NTSTATUS cldapd_startup_interfaces(struct cldapd_server *cldapd)
        NTSTATUS status;
 
        /* if we are allowing incoming packets from any address, then
-          we also need to bind to the wildcard address */
+          we need to bind to the wildcard address */
        if (!lp_bind_interfaces_only()) {
                status = cldapd_add_socket(cldapd, "0.0.0.0");
                NT_STATUS_NOT_OK_RETURN(status);
index f110d05d1670bcbc2380a6a3d75022f562ebb2aa..e3d7c06ab3cda99466db9b1d0ec5ac97866df5a0 100644 (file)
@@ -27,4 +27,5 @@
 */
 struct cldapd_server {
        struct task_server *task;
+       const char *dns_domain;
 };
index 225fb1cf08baeb36d98cf2ea3061c7a0783ac9e1..a2042cecc5c10f7d54f08b05297910d325866c36 100644 (file)
@@ -5,6 +5,8 @@
 [SUBSYSTEM::CLDAPD]
 INIT_OBJ_FILES = \
                cldap_server/cldap_server.o
+ADD_OBJ_FILES = \
+               cldap_server/netlogon.o
 REQUIRED_SUBSYSTEMS = \
                LIBCLI_CLDAP
 # End SUBSYSTEM CLDAPD
diff --git a/source/cldap_server/netlogon.c b/source/cldap_server/netlogon.c
new file mode 100644 (file)
index 0000000..ca77ea1
--- /dev/null
@@ -0,0 +1,233 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   CLDAP server - netlogon handling
+
+   Copyright (C) Andrew Tridgell       2005
+   
+   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"
+#include "libcli/ldap/ldap.h"
+#include "lib/events/events.h"
+#include "lib/socket/socket.h"
+#include "smbd/service_task.h"
+#include "cldap_server/cldap_server.h"
+
+/*
+  fill in the cldap netlogon union for a given version
+*/
+static NTSTATUS cldapd_netlogon_fill(struct cldap_socket *cldap,
+                                    TALLOC_CTX *mem_ctx,
+                                    const char *domain,
+                                    const char *src_address,
+                                    uint32_t version,
+                                    union nbt_cldap_netlogon *netlogon)
+{
+       struct ldb_context *samctx;
+       const char *attrs[] = {"realm", "dnsDomain", "objectGUID", "name", NULL};
+       struct ldb_message **res;
+       int ret;
+       const char **services = lp_server_services();
+       uint32_t server_type;
+       const char *pdc_name;
+       struct GUID domain_uuid;
+       const char *realm;
+       const char *dns_domain;
+       const char *pdc_dns_name;
+       const char *flatname;
+       const char *site_name;
+       const char *site_name2;
+       const char *pdc_ip;
+
+       samctx = samdb_connect(mem_ctx);
+       if (samctx == NULL) {
+               DEBUG(2,("Unable to open sam in cldap netlogon reply\n"));
+               return NT_STATUS_INTERNAL_DB_CORRUPTION;
+       }
+
+       /* try and find the domain */
+       ret = gendb_search(samctx, samctx, NULL, &res, attrs, 
+                          "(&(dnsDomain=%s)(objectClass=domainDNS))", domain);
+       if (ret != 1) {
+               DEBUG(2,("Unable to find domain '%s' in sam\n", domain));
+               return NT_STATUS_NO_SUCH_DOMAIN;
+       }
+
+       server_type      = 
+               NBT_SERVER_PDC | NBT_SERVER_GC | 
+               NBT_SERVER_DS | NBT_SERVER_TIMESERV |
+               NBT_SERVER_CLOSEST | NBT_SERVER_WRITABLE | 
+               NBT_SERVER_GOOD_TIMESERV;
+
+       if (lp_parm_bool(-1, "gensec", "krb5", True)) {
+               server_type |= NBT_SERVER_KDC;
+       }
+       if (str_list_check(services, "ldap")) {
+               server_type |= NBT_SERVER_LDAP;
+       }
+
+       pdc_name         = talloc_asprintf(mem_ctx, "\\\\%s", lp_netbios_name());
+       domain_uuid      = samdb_result_guid(res[0], "objectGUID");
+       realm            = samdb_result_string(res[0], "realm", lp_realm());
+       dns_domain       = samdb_result_string(res[0], "dnsDomain", lp_realm());
+       pdc_dns_name     = talloc_asprintf(mem_ctx, "%s.%s", 
+                                          lp_netbios_name(), dns_domain);
+       flatname         = samdb_result_string(res[0], "name", lp_workgroup());
+       site_name        = "Default-First-Site-Name";
+       site_name2       = "";
+       pdc_ip           = iface_best_ip(src_address);
+
+       ZERO_STRUCTP(netlogon);
+
+       switch (version & 0xF) {
+       case 0:
+       case 1:
+               netlogon->logon1.pdc_name    = pdc_name;
+               netlogon->logon1.unknown     = "";
+               netlogon->logon1.domain_name = flatname;
+               netlogon->logon1.nt_version  = 1;
+               netlogon->logon1.lmnt_token  = 0xFFFF;
+               netlogon->logon1.lm20_token  = 0xFFFF;
+               break;
+       case 2:
+       case 3:
+               netlogon->logon2.pdc_name     = pdc_name;
+               netlogon->logon2.unknown      = "";
+               netlogon->logon2.domain_name  = flatname;
+               netlogon->logon2.domain_uuid  = domain_uuid;
+               netlogon->logon2.forest       = realm;
+               netlogon->logon2.dns_domain   = dns_domain;
+               netlogon->logon2.pdc_dns_name = pdc_dns_name;
+               netlogon->logon2.pdc_ip       = pdc_ip;
+               netlogon->logon2.server_type  = server_type;
+               netlogon->logon2.nt_version   = 3;
+               netlogon->logon2.lmnt_token   = 0xFFFF;
+               netlogon->logon2.lm20_token   = 0xFFFF;
+               break;
+       case 4:
+       case 5:
+       case 6:
+       case 7:
+               netlogon->logon3.server_type  = server_type;
+               netlogon->logon3.domain_uuid  = domain_uuid;
+               netlogon->logon3.forest       = realm;
+               netlogon->logon3.dns_domain   = dns_domain;
+               netlogon->logon3.pdc_dns_name = pdc_dns_name;
+               netlogon->logon3.domain       = flatname;
+               netlogon->logon3.pdc_name     = pdc_name;
+               netlogon->logon3.user_name    = "";
+               netlogon->logon3.site_name    = site_name;
+               netlogon->logon3.site_name2   = site_name2;
+               netlogon->logon3.nt_version   = 3;
+               netlogon->logon3.lmnt_token   = 0xFFFF;
+               netlogon->logon3.lm20_token   = 0xFFFF;
+               break;
+       default:
+               netlogon->logon4.server_type  = server_type;
+               netlogon->logon4.domain_uuid  = domain_uuid;
+               netlogon->logon4.forest       = realm;
+               netlogon->logon4.dns_domain   = dns_domain;
+               netlogon->logon4.pdc_dns_name = pdc_dns_name;
+               netlogon->logon4.domain       = flatname;
+               netlogon->logon4.pdc_name     = lp_netbios_name();
+               netlogon->logon4.user_name    = "";
+               netlogon->logon4.site_name    = site_name;
+               netlogon->logon4.site_name2   = site_name2;
+               netlogon->logon4.unknown      = 10;
+               netlogon->logon4.unknown2     = 2;
+               netlogon->logon4.pdc_ip       = pdc_ip;
+               netlogon->logon4.nt_version   = 5;
+               netlogon->logon4.lmnt_token   = 0xFFFF;
+               netlogon->logon4.lm20_token   = 0xFFFF;
+               break;
+       }
+
+       return NT_STATUS_OK;
+}
+
+
+/*
+  handle incoming cldap requests
+*/
+void cldapd_netlogon_request(struct cldap_socket *cldap, 
+                            uint32_t message_id,
+                            const char *filter,
+                            const char *src_address, int src_port)
+{
+       struct ldap_parse_tree *tree;
+       int i;
+       const char *domain = NULL;
+       const char *host = NULL;
+       int version = -1;
+       union nbt_cldap_netlogon netlogon;
+       NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
+
+       TALLOC_CTX *tmp_ctx = talloc_new(cldap);
+
+       tree = ldap_parse_filter_string(tmp_ctx, filter);
+       if (tree == NULL) goto failed;
+
+       if (tree->operation != LDAP_OP_AND) goto failed;
+
+       /* extract the query elements */
+       for (i=0;i<tree->u.list.num_elements;i++) {
+               struct ldap_parse_tree *t = tree->u.list.elements[i];
+               if (t->operation != LDAP_OP_SIMPLE) goto failed;
+               if (strcasecmp(t->u.simple.attr, "DnsDomain") == 0) {
+                       domain = talloc_strndup(tmp_ctx, 
+                                               t->u.simple.value.data,
+                                               t->u.simple.value.length);
+               }
+               if (strcasecmp(t->u.simple.attr, "Host") == 0) {
+                       host = talloc_strndup(tmp_ctx, 
+                                             t->u.simple.value.data,
+                                             t->u.simple.value.length);
+               }
+               if (strcasecmp(t->u.simple.attr, "NtVer") == 0 &&
+                   t->u.simple.value.length == 4) {
+                       version = IVAL(t->u.simple.value.data, 0);
+               }
+       }
+
+       if (domain == NULL || host == NULL || version == -1) {
+               goto failed;
+       }
+
+       DEBUG(2,("cldap netlogon query domain=%s host=%s version=%d\n",
+                domain, host, version));
+
+       status = cldapd_netlogon_fill(cldap, tmp_ctx, domain, src_address, 
+                                     version, &netlogon);
+       if (!NT_STATUS_IS_OK(status)) {
+               goto failed;
+       }
+
+       status = cldap_netlogon_reply(cldap, message_id, src_address, src_port, version,
+                                     &netlogon);
+       if (!NT_STATUS_IS_OK(status)) {
+               goto failed;
+       }
+
+       talloc_free(tmp_ctx);
+       return;
+       
+failed:
+       DEBUG(0,("cldap netlogon query failed domain=%s host=%s version=%d - %s\n",
+                domain, host, version, nt_errstr(status)));
+       talloc_free(tmp_ctx);
+       cldap_empty_reply(cldap, message_id, src_address, src_port);    
+}
index 6fec1ff257fca3c41b9afc1e376adcd5de7b33c5..8204cb769de089fd08ea1e4846d5883dfc2d956d 100644 (file)
@@ -192,6 +192,7 @@ struct nbtd_server;
 struct nbtd_interface;
 struct wins_server;
 
+struct cldap_socket;
 struct cldapd_server;
 
 struct mutex_ops;