source4/ldap_server/ldap_backend.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    LDAP server
   4    Copyright (C) Stefan Metzmacher 2004
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "includes.h"
  22
  23
  24 struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, enum ldap_request_tag type)
  25 {
  26         struct ldapsrv_reply *reply;
  27
  28         reply = talloc_p(call, struct ldapsrv_reply);
  29         if (!reply) {
  30                 return NULL;
  31         }
  32
  33         reply->prev = reply->next = NULL;
  34         reply->state = LDAPSRV_REPLY_STATE_NEW;
  35         reply->msg.messageid = call->request.messageid;
  36         reply->msg.type = type;
  37         reply->msg.mem_ctx = reply;
  38
  39         return reply;
  40 }
  41
  42 NTSTATUS ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
  43 {
  44         DLIST_ADD_END(call->replies, reply, struct ldapsrv_reply *);
  45         return NT_STATUS_OK;
  46 }
  47
  48 struct ldapsrv_partition *ldapsrv_get_partition(struct ldapsrv_connection *conn, const char *dn, enum ldap_scope scope)
  49 {
  50         if (scope == LDAP_SEARCH_SCOPE_BASE
  51             && strcasecmp("", dn) == 0) {
  52                 return conn->service->rootDSE;
  53         }
  54
  55         return conn->service->default_partition;
  56 }
  57
  58 NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
  59 {
  60         struct ldapsrv_reply *reply;
  61         struct ldap_ExtendedResponse *r;
  62
  63         DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request.type, call->request.messageid));
  64
  65         reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
  66         if (!reply) {
  67                 return NT_STATUS_NO_MEMORY;
  68         }
  69
  70         r = &reply->msg.r.ExtendedResponse;
  71         r->response.resultcode = error;
  72         r->response.dn = NULL;
  73         r->response.errormessage = NULL;
  74         r->response.referral = NULL;
  75         r->name = NULL;
  76         r->value.data = NULL;
  77         r->value.length = 0;
  78
  79         return ldapsrv_queue_reply(call, reply);
  80 }
  81
  82 static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
  83 {
  84         struct ldap_SearchRequest *req = &call->request.r.SearchRequest;
  85         struct ldapsrv_partition *part;
  86
  87         DEBUG(10, ("SearchRequest"));
  88         DEBUGADD(10, (" basedn: %s", req->basedn));
  89         DEBUGADD(10, (" filter: %s\n", req->filter));
  90
  91         part = ldapsrv_get_partition(call->conn, req->basedn, req->scope);
  92
  93         if (!part->ops->Search) {
  94                 struct ldap_Result *done;
  95                 struct ldapsrv_reply *done_r;
  96
  97                 done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
  98                 if (!done_r) {
  99                         return NT_STATUS_NO_MEMORY;
 100                 }
 101
 102                 done = &done_r->msg.r.SearchResultDone;
 103                 done->resultcode = 53;
 104                 done->dn = NULL;
 105                 done->errormessage = NULL;
 106                 done->referral = NULL;
 107
 108                 return ldapsrv_queue_reply(call, done_r);
 109         }
 110
 111         return part->ops->Search(part, call, req);
 112 }
 113
 114 static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
 115 {
 116         struct ldap_ModifyRequest *req = &call->request.r.ModifyRequest;
 117         struct ldapsrv_partition *part;
 118
 119         DEBUG(10, ("ModifyRequest"));
 120         DEBUGADD(10, (" dn: %s", req->dn));
 121
 122         part = ldapsrv_get_partition(call->conn, req->dn, LDAP_SEARCH_SCOPE_SUB);
 123
 124         if (!part->ops->Modify) {
 125                 return ldapsrv_unwilling(call, 53);
 126         }
 127
 128         return part->ops->Modify(part, call, req);
 129 }
 130
 131 static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
 132 {
 133         struct ldap_AddRequest *req = &call->request.r.AddRequest;
 134         struct ldapsrv_partition *part;
 135
 136         DEBUG(10, ("AddRequest"));
 137         DEBUGADD(10, (" dn: %s", req->dn));
 138
 139         part = ldapsrv_get_partition(call->conn, req->dn, LDAP_SEARCH_SCOPE_SUB);
 140
 141         if (!part->ops->Add) {
 142                 return ldapsrv_unwilling(call, 53);
 143         }
 144
 145         return part->ops->Add(part, call, req);
 146 }
 147
 148 static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
 149 {
 150         struct ldap_DelRequest *req = &call->request.r.DelRequest;
 151         struct ldapsrv_partition *part;
 152
 153         DEBUG(10, ("DelRequest"));
 154         DEBUGADD(10, (" dn: %s", req->dn));
 155
 156         part = ldapsrv_get_partition(call->conn, req->dn, LDAP_SEARCH_SCOPE_SUB);
 157
 158         if (!part->ops->Del) {
 159                 return ldapsrv_unwilling(call, 53);
 160         }
 161
 162         return part->ops->Del(part, call, req);
 163 }
 164
 165 static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
 166 {
 167         struct ldap_ModifyDNRequest *req = &call->request.r.ModifyDNRequest;
 168         struct ldapsrv_partition *part;
 169
 170         DEBUG(10, ("ModifyDNRequrest"));
 171         DEBUGADD(10, (" dn: %s", req->dn));
 172         DEBUGADD(10, (" newrdn: %s", req->newrdn));
 173
 174         part = ldapsrv_get_partition(call->conn, req->dn, LDAP_SEARCH_SCOPE_SUB);
 175
 176         if (!part->ops->ModifyDN) {
 177                 return ldapsrv_unwilling(call, 53);
 178         }
 179
 180         return part->ops->ModifyDN(part, call, req);
 181 }
 182
 183 static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
 184 {
 185         struct ldap_CompareRequest *req = &call->request.r.CompareRequest;
 186         struct ldapsrv_partition *part;
 187
 188         DEBUG(10, ("CompareRequest"));
 189         DEBUGADD(10, (" dn: %s", req->dn));
 190
 191         part = ldapsrv_get_partition(call->conn, req->dn, LDAP_SEARCH_SCOPE_SUB);
 192
 193         if (!part->ops->Compare) {
 194                 return ldapsrv_unwilling(call, 53);
 195         }
 196
 197         return part->ops->Compare(part, call, req);
 198 }
 199
 200 static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
 201 {
 202 /*      struct ldap_AbandonRequest *req = &call->request.r.AbandonRequest;*/
 203         DEBUG(10, ("AbandonRequest\n"));
 204         return NT_STATUS_OK;
 205 }
 206
 207 static NTSTATUS ldapsrv_ExtendedRequest(struct ldapsrv_call *call)
 208 {
 209 /*      struct ldap_ExtendedRequest *req = &call->request.r.ExtendedRequest;*/
 210         struct ldapsrv_reply *reply;
 211
 212         DEBUG(10, ("Extended\n"));
 213
 214         reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
 215         if (!reply) {
 216                 return NT_STATUS_NO_MEMORY;
 217         }
 218
 219         ZERO_STRUCT(reply->msg.r);
 220
 221         return ldapsrv_queue_reply(call, reply);
 222 }
 223
 224 NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
 225 {
 226         switch(call->request.type) {
 227         case LDAP_TAG_BindRequest:
 228                 return ldapsrv_BindRequest(call);
 229         case LDAP_TAG_UnbindRequest:
 230                 return ldapsrv_UnbindRequest(call);
 231         case LDAP_TAG_SearchRequest:
 232                 return ldapsrv_SearchRequest(call);
 233         case LDAP_TAG_ModifyRequest:
 234                 return ldapsrv_ModifyRequest(call);
 235         case LDAP_TAG_AddRequest:
 236                 return ldapsrv_AddRequest(call);
 237         case LDAP_TAG_DelRequest:
 238                 return ldapsrv_DelRequest(call);
 239         case LDAP_TAG_ModifyDNRequest:
 240                 return ldapsrv_ModifyDNRequest(call);
 241         case LDAP_TAG_CompareRequest:
 242                 return ldapsrv_CompareRequest(call);
 243         case LDAP_TAG_AbandonRequest:
 244                 return ldapsrv_AbandonRequest(call);
 245         case LDAP_TAG_ExtendedRequest:
 246                 return ldapsrv_ExtendedRequest(call);
 247         default:
 248                 return ldapsrv_unwilling(call, 2);
 249         }
 250 }