source4/ldap_server/ldap_bind.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 static NTSTATUS ldapsrv_BindSimple(struct ldapsrv_call *call)
  25 {
  26         struct ldap_BindRequest *req = &call->request.r.BindRequest;
  27         struct ldapsrv_reply *reply;
  28         struct ldap_BindResponse *resp;
  29
  30         DEBUG(10, ("BindSimple dn: %s\n",req->dn));
  31
  32         reply = ldapsrv_init_reply(call, LDAP_TAG_BindResponse);
  33         if (!reply) {
  34                 return NT_STATUS_NO_MEMORY;
  35         }
  36
  37         resp = &reply->msg.r.BindResponse;
  38         resp->response.resultcode = 0;
  39         resp->response.dn = NULL;
  40         resp->response.errormessage = NULL;
  41         resp->response.referral = NULL;
  42         resp->SASL.secblob = data_blob(NULL, 0);
  43
  44         return ldapsrv_queue_reply(call, reply);
  45 }
  46
  47 static NTSTATUS ldapsrv_BindSASL(struct ldapsrv_call *call)
  48 {
  49         struct ldap_BindRequest *req = &call->request.r.BindRequest;
  50         struct ldapsrv_reply *reply;
  51         struct ldap_BindResponse *resp;
  52         int result;
  53         const char *errstr;
  54         NTSTATUS status = NT_STATUS_OK;
  55         NTSTATUS sasl_status;
  56         BOOL ret;
  57
  58         DEBUG(10, ("BindSASL dn: %s\n",req->dn));
  59
  60         if (!call->conn->gensec) {
  61                 call->conn->session_info = NULL;
  62
  63                 status = gensec_server_start(call->conn, &call->conn->gensec);
  64                 if (!NT_STATUS_IS_OK(status)) {
  65                         DEBUG(1, ("Failed to start GENSEC server code: %s\n", nt_errstr(status)));
  66                         return status;
  67                 }
  68
  69                 /*gensec_want_feature(call->conn->gensec, GENSEC_WANT_SIGN|GENSEC_WANT_SEAL);*/
  70
  71                 status = gensec_start_mech_by_sasl_name(call->conn->gensec, req->creds.SASL.mechanism);
  72                 if (!NT_STATUS_IS_OK(status)) {
  73                         DEBUG(1, ("Failed to start GENSEC SASL[%s] server code: %s\n",
  74                                 req->creds.SASL.mechanism, nt_errstr(status)));
  75                         goto reply;
  76                 }
  77         }
  78
  79 reply:
  80         reply = ldapsrv_init_reply(call, LDAP_TAG_BindResponse);
  81         if (!reply) {
  82                 return NT_STATUS_NO_MEMORY;
  83         }
  84         resp = &reply->msg.r.BindResponse;
  85
  86         if (NT_STATUS_IS_OK(status)) {
  87                 status = gensec_update(call->conn->gensec, reply,
  88                                         req->creds.SASL.secblob, &resp->SASL.secblob);
  89         }
  90
  91         if (NT_STATUS_EQUAL(NT_STATUS_MORE_PROCESSING_REQUIRED, status)) {
  92                 result = LDAP_SASL_BIND_IN_PROGRESS;
  93                 errstr = NULL;
  94         } else if (NT_STATUS_IS_OK(status)) {
  95                 result = LDAP_SUCCESS;
  96                 errstr = NULL;
  97         } else {
  98                 result = 49;
  99                 errstr = talloc_asprintf(reply, "SASL:[%s]: %s", req->creds.SASL.mechanism, nt_errstr(status));
 100         }
 101
 102         resp->response.resultcode = result;
 103         resp->response.dn = NULL;
 104         resp->response.errormessage = errstr;
 105         resp->response.referral = NULL;
 106
 107         sasl_status = status;
 108         status = ldapsrv_queue_reply(call, reply);
 109         if (!NT_STATUS_IS_OK(sasl_status) || !NT_STATUS_IS_OK(status)) {
 110                 return status;
 111         }
 112
 113         status = ldapsrv_do_responses(call->conn);
 114         if (!NT_STATUS_IS_OK(status)) {
 115                 return status;
 116         }
 117
 118 /*      ret = ldapsrv_append_to_buf(&call->conn->sasl_out_buffer, call->conn->out_buffer.data, call->conn->out_buffer.length);
 119         if (!ret) {
 120                 return NT_STATUS_NO_MEMORY;
 121         }
 122         ldapsrv_consumed_from_buf(&call->conn->out_buffer, call->conn->out_buffer.length);
 123 */
 124         status = gensec_session_info(call->conn->gensec, &call->conn->session_info);
 125         if (!NT_STATUS_IS_OK(status)) {
 126                 return status;
 127         }
 128
 129         //debug_session_info(0, 0, call->conn->session_info);
 130
 131         return status;
 132 }
 133
 134 NTSTATUS ldapsrv_BindRequest(struct ldapsrv_call *call)
 135 {
 136         struct ldap_BindRequest *req = &call->request.r.BindRequest;
 137         struct ldapsrv_reply *reply;
 138         struct ldap_BindResponse *resp;
 139
 140         switch (req->mechanism) {
 141                 case LDAP_AUTH_MECH_SIMPLE:
 142                         return ldapsrv_BindSimple(call);
 143                 case LDAP_AUTH_MECH_SASL:
 144                         return ldapsrv_BindSASL(call);
 145         }
 146
 147         reply = ldapsrv_init_reply(call, LDAP_TAG_BindResponse);
 148         if (!reply) {
 149                 return NT_STATUS_NO_MEMORY;
 150         }
 151
 152         resp = &reply->msg.r.BindResponse;
 153         resp->response.resultcode = 7;
 154         resp->response.dn = NULL;
 155         resp->response.errormessage = talloc_asprintf(reply, "Bad AuthenticationChoice [%d]", req->mechanism);
 156         resp->response.referral = NULL;
 157         resp->SASL.secblob = data_blob(NULL, 0);
 158
 159         return ldapsrv_queue_reply(call, reply);
 160 }
 161
 162 NTSTATUS ldapsrv_UnbindRequest(struct ldapsrv_call *call)
 163 {
 164         DEBUG(10, ("UnbindRequest\n"));
 165         return NT_STATUS_OK;
 166 }