source3/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 3 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, see <http://www.gnu.org/licenses/>.
  22
  23 */
  24
  25 #include "includes.h"
  26 #include "smbldap.h"
  27
  28 /**********************************************************************
  29  Add the account-policies below the sambaDomain object to LDAP,
  30 *********************************************************************/
  31
  32 static NTSTATUS add_new_domain_account_policies(struct smbldap_state *ldap_state,
  33                                                 const char *domain_name)
  34 {
  35         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
  36         int i, rc;
  37         uint32 policy_default;
  38         const char *policy_attr = NULL;
  39         pstring dn;
  40         LDAPMod **mods = NULL;
  41         char *escape_domain_name;
  42
  43         DEBUG(3,("add_new_domain_account_policies: Adding new account policies for domain\n"));
  44
  45         escape_domain_name = escape_rdn_val_string_alloc(domain_name);
  46         if (!escape_domain_name) {
  47                 DEBUG(0, ("Out of memory!\n"));
  48                 return NT_STATUS_NO_MEMORY;
  49         }
  50
  51         pstr_sprintf(dn, "%s=%s,%s",
  52                 get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
  53                 escape_domain_name, lp_ldap_suffix());
  54
  55         SAFE_FREE(escape_domain_name);
  56
  57         for (i=1; decode_account_policy_name(i) != NULL; i++) {
  58
  59                 pstring val;
  60
  61                 policy_attr = get_account_policy_attr(i);
  62                 if (!policy_attr) {
  63                         DEBUG(0,("add_new_domain_account_policies: ops. no policy!\n"));
  64                         continue;
  65                 }
  66
  67                 if (!account_policy_get_default(i, &policy_default)) {
  68                         DEBUG(0,("add_new_domain_account_policies: failed to get default account policy\n"));
  69                         return ntstatus;
  70                 }
  71
  72                 DEBUG(10,("add_new_domain_account_policies: adding \"%s\" with value: %d\n", policy_attr, policy_default));
  73
  74                 pstr_sprintf(val, "%d", policy_default);
  75
  76                 smbldap_set_mod( &mods, LDAP_MOD_REPLACE, policy_attr, val);
  77
  78                 rc = smbldap_modify(ldap_state, dn, mods);
  79
  80                 if (rc!=LDAP_SUCCESS) {
  81                         char *ld_error = NULL;
  82                         ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_ERROR_STRING, &ld_error);
  83                         DEBUG(1,("add_new_domain_account_policies: failed to add account policies to dn= %s with: %s\n\t%s\n",
  84                                 dn, ldap_err2string(rc),
  85                                 ld_error ? ld_error : "unknown"));
  86                         SAFE_FREE(ld_error);
  87                         ldap_mods_free(mods, True);
  88                         return ntstatus;
  89                 }
  90         }
  91
  92         ldap_mods_free(mods, True);
  93
  94         return NT_STATUS_OK;
  95 }
  96
  97 /**********************************************************************
  98  Add the sambaDomain to LDAP, so we don't have to search for this stuff
  99  again.  This is a once-add operation for now.
 100
 101  TODO:  Add other attributes, and allow modification.
 102 *********************************************************************/
 103
 104 static NTSTATUS add_new_domain_info(struct smbldap_state *ldap_state,
 105                                     const char *domain_name)
 106 {
 107         fstring sid_string;
 108         fstring algorithmic_rid_base_string;
 109         pstring filter, dn;
 110         LDAPMod **mods = NULL;
 111         int rc;
 112         LDAPMessage *result = NULL;
 113         int num_result;
 114         const char **attr_list;
 115         char *escape_domain_name;
 116
 117         /* escape for filter */
 118         escape_domain_name = escape_ldap_string_alloc(domain_name);
 119         if (!escape_domain_name) {
 120                 DEBUG(0, ("Out of memory!\n"));
 121                 return NT_STATUS_NO_MEMORY;
 122         }
 123
 124         slprintf (filter, sizeof (filter) - 1, "(&(%s=%s)(objectclass=%s))",
 125                   get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
 126                   escape_domain_name, LDAP_OBJ_DOMINFO);
 127
 128         SAFE_FREE(escape_domain_name);
 129
 130         attr_list = get_attr_list( NULL, dominfo_attr_list );
 131         rc = smbldap_search_suffix(ldap_state, filter, attr_list, &result);
 132         TALLOC_FREE( attr_list );
 133
 134         if (rc != LDAP_SUCCESS) {
 135                 return NT_STATUS_UNSUCCESSFUL;
 136         }
 137
 138         num_result = ldap_count_entries(ldap_state->ldap_struct, result);
 139
 140         if (num_result > 1) {
 141                 DEBUG (0, ("add_new_domain_info: More than domain with that name exists: bailing "
 142                            "out!\n"));
 143                 ldap_msgfree(result);
 144                 return NT_STATUS_UNSUCCESSFUL;
 145         }
 146
 147         /* Check if we need to add an entry */
 148         DEBUG(3,("add_new_domain_info: Adding new domain\n"));
 149
 150         /* this time escape for DN */
 151         escape_domain_name = escape_rdn_val_string_alloc(domain_name);
 152         if (!escape_domain_name) {
 153                 DEBUG(0, ("Out of memory!\n"));
 154                 return NT_STATUS_NO_MEMORY;
 155         }
 156
 157         pstr_sprintf(dn, "%s=%s,%s",
 158                      get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
 159                      escape_domain_name, lp_ldap_suffix());
 160
 161         SAFE_FREE(escape_domain_name);
 162
 163         /* Free original search */
 164         ldap_msgfree(result);
 165
 166         /* make the changes - the entry *must* not already have samba
 167          * attributes */
 168
 169         smbldap_set_mod(&mods, LDAP_MOD_ADD,
 170                         get_attr_key2string(dominfo_attr_list,
 171                                             LDAP_ATTR_DOMAIN),
 172                         domain_name);
 173
 174         /* If we don't have an entry, then ask secrets.tdb for what it thinks.
 175            It may choose to make it up */
 176
 177         sid_to_string(sid_string, get_global_sam_sid());
 178         smbldap_set_mod(&mods, LDAP_MOD_ADD,
 179                         get_attr_key2string(dominfo_attr_list,
 180                                             LDAP_ATTR_DOM_SID),
 181                         sid_string);
 182
 183         slprintf(algorithmic_rid_base_string,
 184                  sizeof(algorithmic_rid_base_string) - 1, "%i",
 185                  algorithmic_rid_base());
 186         smbldap_set_mod(&mods, LDAP_MOD_ADD,
 187                         get_attr_key2string(dominfo_attr_list,
 188                                             LDAP_ATTR_ALGORITHMIC_RID_BASE),
 189                         algorithmic_rid_base_string);
 190         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_DOMINFO);
 191
 192         /* add the sambaNextUserRid attributes. */
 193
 194         {
 195                 uint32 rid = BASE_RID;
 196                 fstring rid_str;
 197
 198                 fstr_sprintf( rid_str, "%i", rid );
 199                 DEBUG(10,("add_new_domain_info: setting next available user rid [%s]\n", rid_str));
 200                 smbldap_set_mod(&mods, LDAP_MOD_ADD,
 201                         get_attr_key2string(dominfo_attr_list,
 202                                             LDAP_ATTR_NEXT_USERRID),
 203                         rid_str);
 204         }
 205
 206
 207         rc = smbldap_add(ldap_state, dn, mods);
 208
 209         if (rc!=LDAP_SUCCESS) {
 210                 char *ld_error = NULL;
 211                 ldap_get_option(ldap_state->ldap_struct,
 212                                 LDAP_OPT_ERROR_STRING, &ld_error);
 213                 DEBUG(1,("add_new_domain_info: failed to add domain dn= %s with: %s\n\t%s\n",
 214                          dn, ldap_err2string(rc),
 215                          ld_error?ld_error:"unknown"));
 216                 SAFE_FREE(ld_error);
 217
 218                 ldap_mods_free(mods, True);
 219                 return NT_STATUS_UNSUCCESSFUL;
 220         }
 221
 222         DEBUG(2,("add_new_domain_info: added: domain = %s in the LDAP database\n", domain_name));
 223         ldap_mods_free(mods, True);
 224         return NT_STATUS_OK;
 225 }
 226
 227 /**********************************************************************
 228 Search for the domain info entry
 229 *********************************************************************/
 230
 231 NTSTATUS smbldap_search_domain_info(struct smbldap_state *ldap_state,
 232                                     LDAPMessage ** result, const char *domain_name,
 233                                     BOOL try_add)
 234 {
 235         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 236         pstring filter;
 237         int rc;
 238         const char **attr_list;
 239         int count;
 240         char *escape_domain_name;
 241
 242         escape_domain_name = escape_ldap_string_alloc(domain_name);
 243         if (!escape_domain_name) {
 244                 DEBUG(0, ("Out of memory!\n"));
 245                 return NT_STATUS_NO_MEMORY;
 246         }
 247
 248         pstr_sprintf(filter, "(&(objectClass=%s)(%s=%s))",
 249                 LDAP_OBJ_DOMINFO,
 250                 get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
 251                 escape_domain_name);
 252
 253         SAFE_FREE(escape_domain_name);
 254
 255         DEBUG(2, ("smbldap_search_domain_info: Searching for:[%s]\n", filter));
 256
 257         attr_list = get_attr_list( NULL, dominfo_attr_list );
 258         rc = smbldap_search_suffix(ldap_state, filter, attr_list , result);
 259         TALLOC_FREE( attr_list );
 260
 261         if (rc != LDAP_SUCCESS) {
 262                 DEBUG(2,("smbldap_search_domain_info: Problem during LDAPsearch: %s\n", ldap_err2string (rc)));
 263                 DEBUG(2,("smbldap_search_domain_info: Query was: %s, %s\n", lp_ldap_suffix(), filter));
 264                 goto failed;
 265         }
 266
 267         count = ldap_count_entries(ldap_state->ldap_struct, *result);
 268
 269         if (count == 1)
 270                 return NT_STATUS_OK;
 271
 272         ldap_msgfree(*result);
 273         *result = NULL;
 274
 275         if (count < 1) {
 276
 277                 DEBUG(3, ("smbldap_search_domain_info: Got no domain info entries for domain\n"));
 278
 279                 if (!try_add)
 280                         goto failed;
 281
 282                 status = add_new_domain_info(ldap_state, domain_name);
 283                 if (!NT_STATUS_IS_OK(status)) {
 284                         DEBUG(0, ("smbldap_search_domain_info: Adding domain info for %s failed with %s\n",
 285                                 domain_name, nt_errstr(status)));
 286                         goto failed;
 287                 }
 288
 289                 status = add_new_domain_account_policies(ldap_state, domain_name);
 290                 if (!NT_STATUS_IS_OK(status)) {
 291                         DEBUG(0, ("smbldap_search_domain_info: Adding domain account policies for %s failed with %s\n",
 292                                 domain_name, nt_errstr(status)));
 293                         goto failed;
 294                 }
 295
 296                 return smbldap_search_domain_info(ldap_state, result, domain_name, False);
 297
 298         }
 299
 300         if (count > 1 ) {
 301
 302                 DEBUG(0, ("smbldap_search_domain_info: Got too many (%d) domain info entries for domain %s\n",
 303                           count, domain_name));
 304                 goto failed;
 305         }
 306
 307 failed:
 308         return status;
 309 }