source/lib/smbldap_util.c

   1 /*
   2    Unix SMB/CIFS mplementation.
   3    LDAP protocol helper functions for SAMBA
   4    Copyright (C) Jean François Micouleau        1998
   5    Copyright (C) Gerald Carter                  2001-2003
   6    Copyright (C) Shahms King                    2001
   7    Copyright (C) Andrew Bartlett                2002-2003
   8    Copyright (C) Stefan (metze) Metzmacher      2002-2003
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23
  24 */
  25
  26 #include "includes.h"
  27 #include "smbldap.h"
  28
  29 /**********************************************************************
  30  Add the account-policies below the sambaDomain object to LDAP,
  31 *********************************************************************/
  32
  33 static NTSTATUS add_new_domain_account_policies(struct smbldap_state *ldap_state,
  34                                                 const char *domain_name)
  35 {
  36         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
  37         int i, rc;
  38         uint32 policy_default;
  39         const char *policy_attr = NULL;
  40         pstring dn;
  41         LDAPMod **mods = NULL;
  42         char *escape_domain_name;
  43
  44         DEBUG(3,("add_new_domain_account_policies: Adding new account policies for domain\n"));
  45
  46         escape_domain_name = escape_rdn_val_string_alloc(domain_name);
  47         if (!escape_domain_name) {
  48                 DEBUG(0, ("Out of memory!\n"));
  49                 return NT_STATUS_NO_MEMORY;
  50         }
  51
  52         pstr_sprintf(dn, "%s=%s,%s",
  53                 get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
  54                 escape_domain_name, lp_ldap_suffix());
  55
  56         SAFE_FREE(escape_domain_name);
  57
  58         for (i=1; decode_account_policy_name(i) != NULL; i++) {
  59
  60                 pstring val;
  61
  62                 policy_attr = get_account_policy_attr(i);
  63                 if (!policy_attr) {
  64                         DEBUG(0,("add_new_domain_account_policies: ops. no policy!\n"));
  65                         continue;
  66                 }
  67
  68                 if (!account_policy_get_default(i, &policy_default)) {
  69                         DEBUG(0,("add_new_domain_account_policies: failed to get default account policy\n"));
  70                         return ntstatus;
  71                 }
  72
  73                 DEBUG(10,("add_new_domain_account_policies: adding \"%s\" with value: %d\n", policy_attr, policy_default));
  74
  75                 pstr_sprintf(val, "%d", policy_default);
  76
  77                 smbldap_set_mod( &mods, LDAP_MOD_REPLACE, policy_attr, val);
  78
  79                 rc = smbldap_modify(ldap_state, dn, mods);
  80
  81                 if (rc!=LDAP_SUCCESS) {
  82                         char *ld_error = NULL;
  83                         ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_ERROR_STRING, &ld_error);
  84                         DEBUG(1,("add_new_domain_account_policies: failed to add account policies to dn= %s with: %s\n\t%s\n",
  85                                 dn, ldap_err2string(rc),
  86                                 ld_error ? ld_error : "unknown"));
  87                         SAFE_FREE(ld_error);
  88                         ldap_mods_free(mods, True);
  89                         return ntstatus;
  90                 }
  91         }
  92
  93         ldap_mods_free(mods, True);
  94
  95         return NT_STATUS_OK;
  96 }
  97
  98 /**********************************************************************
  99  Add the sambaDomain to LDAP, so we don't have to search for this stuff
 100  again.  This is a once-add operation for now.
 101
 102  TODO:  Add other attributes, and allow modification.
 103 *********************************************************************/
 104
 105 static NTSTATUS add_new_domain_info(struct smbldap_state *ldap_state,
 106                                     const char *domain_name)
 107 {
 108         fstring sid_string;
 109         fstring algorithmic_rid_base_string;
 110         pstring filter, dn;
 111         LDAPMod **mods = NULL;
 112         int rc;
 113         LDAPMessage *result = NULL;
 114         int num_result;
 115         const char **attr_list;
 116         char *escape_domain_name;
 117
 118         /* escape for filter */
 119         escape_domain_name = escape_ldap_string_alloc(domain_name);
 120         if (!escape_domain_name) {
 121                 DEBUG(0, ("Out of memory!\n"));
 122                 return NT_STATUS_NO_MEMORY;
 123         }
 124
 125         slprintf (filter, sizeof (filter) - 1, "(&(%s=%s)(objectclass=%s))",
 126                   get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
 127                   escape_domain_name, LDAP_OBJ_DOMINFO);
 128
 129         SAFE_FREE(escape_domain_name);
 130
 131         attr_list = get_attr_list( NULL, dominfo_attr_list );
 132         rc = smbldap_search_suffix(ldap_state, filter, attr_list, &result);
 133         TALLOC_FREE( attr_list );
 134
 135         if (rc != LDAP_SUCCESS) {
 136                 return NT_STATUS_UNSUCCESSFUL;
 137         }
 138
 139         num_result = ldap_count_entries(ldap_state->ldap_struct, result);
 140
 141         if (num_result > 1) {
 142                 DEBUG (0, ("add_new_domain_info: More than domain with that name exists: bailing "
 143                            "out!\n"));
 144                 ldap_msgfree(result);
 145                 return NT_STATUS_UNSUCCESSFUL;
 146         }
 147
 148         /* Check if we need to add an entry */
 149         DEBUG(3,("add_new_domain_info: Adding new domain\n"));
 150
 151         /* this time escape for DN */
 152         escape_domain_name = escape_rdn_val_string_alloc(domain_name);
 153         if (!escape_domain_name) {
 154                 DEBUG(0, ("Out of memory!\n"));
 155                 return NT_STATUS_NO_MEMORY;
 156         }
 157
 158         pstr_sprintf(dn, "%s=%s,%s",
 159                      get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
 160                      escape_domain_name, lp_ldap_suffix());
 161
 162         SAFE_FREE(escape_domain_name);
 163
 164         /* Free original search */
 165         ldap_msgfree(result);
 166
 167         /* make the changes - the entry *must* not already have samba
 168          * attributes */
 169
 170         smbldap_set_mod(&mods, LDAP_MOD_ADD,
 171                         get_attr_key2string(dominfo_attr_list,
 172                                             LDAP_ATTR_DOMAIN),
 173                         domain_name);
 174
 175         /* If we don't have an entry, then ask secrets.tdb for what it thinks.
 176            It may choose to make it up */
 177
 178         sid_to_string(sid_string, get_global_sam_sid());
 179         smbldap_set_mod(&mods, LDAP_MOD_ADD,
 180                         get_attr_key2string(dominfo_attr_list,
 181                                             LDAP_ATTR_DOM_SID),
 182                         sid_string);
 183
 184         slprintf(algorithmic_rid_base_string,
 185                  sizeof(algorithmic_rid_base_string) - 1, "%i",
 186                  algorithmic_rid_base());
 187         smbldap_set_mod(&mods, LDAP_MOD_ADD,
 188                         get_attr_key2string(dominfo_attr_list,
 189                                             LDAP_ATTR_ALGORITHMIC_RID_BASE),
 190                         algorithmic_rid_base_string);
 191         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_DOMINFO);
 192
 193         /* add the sambaNextUserRid attributes. */
 194
 195         {
 196                 uint32 rid = BASE_RID;
 197                 fstring rid_str;
 198
 199                 fstr_sprintf( rid_str, "%i", rid );
 200                 DEBUG(10,("add_new_domain_info: setting next available user rid [%s]\n", rid_str));
 201                 smbldap_set_mod(&mods, LDAP_MOD_ADD,
 202                         get_attr_key2string(dominfo_attr_list,
 203                                             LDAP_ATTR_NEXT_USERRID),
 204                         rid_str);
 205         }
 206
 207
 208         rc = smbldap_add(ldap_state, dn, mods);
 209
 210         if (rc!=LDAP_SUCCESS) {
 211                 char *ld_error = NULL;
 212                 ldap_get_option(ldap_state->ldap_struct,
 213                                 LDAP_OPT_ERROR_STRING, &ld_error);
 214                 DEBUG(1,("add_new_domain_info: failed to add domain dn= %s with: %s\n\t%s\n",
 215                          dn, ldap_err2string(rc),
 216                          ld_error?ld_error:"unknown"));
 217                 SAFE_FREE(ld_error);
 218
 219                 ldap_mods_free(mods, True);
 220                 return NT_STATUS_UNSUCCESSFUL;
 221         }
 222
 223         DEBUG(2,("add_new_domain_info: added: domain = %s in the LDAP database\n", domain_name));
 224         ldap_mods_free(mods, True);
 225         return NT_STATUS_OK;
 226 }
 227
 228 /**********************************************************************
 229 Search for the domain info entry
 230 *********************************************************************/
 231
 232 NTSTATUS smbldap_search_domain_info(struct smbldap_state *ldap_state,
 233                                     LDAPMessage ** result, const char *domain_name,
 234                                     BOOL try_add)
 235 {
 236         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 237         pstring filter;
 238         int rc;
 239         const char **attr_list;
 240         int count;
 241         char *escape_domain_name;
 242
 243         escape_domain_name = escape_ldap_string_alloc(domain_name);
 244         if (!escape_domain_name) {
 245                 DEBUG(0, ("Out of memory!\n"));
 246                 return NT_STATUS_NO_MEMORY;
 247         }
 248
 249         pstr_sprintf(filter, "(&(objectClass=%s)(%s=%s))",
 250                 LDAP_OBJ_DOMINFO,
 251                 get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
 252                 escape_domain_name);
 253
 254         SAFE_FREE(escape_domain_name);
 255
 256         DEBUG(2, ("smbldap_search_domain_info: Searching for:[%s]\n", filter));
 257
 258         attr_list = get_attr_list( NULL, dominfo_attr_list );
 259         rc = smbldap_search_suffix(ldap_state, filter, attr_list , result);
 260         TALLOC_FREE( attr_list );
 261
 262         if (rc != LDAP_SUCCESS) {
 263                 DEBUG(2,("smbldap_search_domain_info: Problem during LDAPsearch: %s\n", ldap_err2string (rc)));
 264                 DEBUG(2,("smbldap_search_domain_info: Query was: %s, %s\n", lp_ldap_suffix(), filter));
 265                 goto failed;
 266         }
 267
 268         count = ldap_count_entries(ldap_state->ldap_struct, *result);
 269
 270         if (count == 1)
 271                 return NT_STATUS_OK;
 272
 273         ldap_msgfree(*result);
 274         *result = NULL;
 275
 276         if (count < 1) {
 277
 278                 DEBUG(3, ("smbldap_search_domain_info: Got no domain info entries for domain\n"));
 279
 280                 if (!try_add)
 281                         goto failed;
 282
 283                 status = add_new_domain_info(ldap_state, domain_name);
 284                 if (!NT_STATUS_IS_OK(status)) {
 285                         DEBUG(0, ("smbldap_search_domain_info: Adding domain info for %s failed with %s\n",
 286                                 domain_name, nt_errstr(status)));
 287                         goto failed;
 288                 }
 289
 290                 status = add_new_domain_account_policies(ldap_state, domain_name);
 291                 if (!NT_STATUS_IS_OK(status)) {
 292                         DEBUG(0, ("smbldap_search_domain_info: Adding domain account policies for %s failed with %s\n",
 293                                 domain_name, nt_errstr(status)));
 294                         goto failed;
 295                 }
 296
 297                 return smbldap_search_domain_info(ldap_state, result, domain_name, False);
 298
 299         }
 300
 301         if (count > 1 ) {
 302
 303                 DEBUG(0, ("smbldap_search_domain_info: Got too many (%d) domain info entries for domain %s\n",
 304                           count, domain_name));
 305                 goto failed;
 306         }
 307
 308 failed:
 309         return status;
 310 }