source3/libsmb/ntlmssp_wrap.c

   1 /*
   2    NLTMSSP wrappers
   3
   4    Copyright (C) Andrew Tridgell      2001
   5    Copyright (C) Andrew Bartlett 2001-2003,2011
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "auth/ntlmssp/ntlmssp.h"
  23 #include "auth/ntlmssp/ntlmssp_private.h"
  24 #include "auth_generic.h"
  25 #include "auth/gensec/gensec.h"
  26 #include "auth/gensec/gensec_internal.h"
  27 #include "auth/credentials/credentials.h"
  28 #include "librpc/rpc/dcerpc.h"
  29 #include "lib/param/param.h"
  30
  31 static NTSTATUS gensec_ntlmssp3_client_update(struct gensec_security *gensec_security,
  32                                               TALLOC_CTX *out_mem_ctx,
  33                                               struct tevent_context *ev,
  34                                               const DATA_BLOB request,
  35                                               DATA_BLOB *reply)
  36 {
  37         NTSTATUS status;
  38         struct gensec_ntlmssp_context *gensec_ntlmssp =
  39                 talloc_get_type_abort(gensec_security->private_data,
  40                                       struct gensec_ntlmssp_context);
  41
  42         status = ntlmssp_update(gensec_ntlmssp->ntlmssp_state, request, reply);
  43         if (NT_STATUS_IS_OK(status) ||
  44             NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
  45                 talloc_steal(out_mem_ctx, reply->data);
  46         }
  47
  48         return status;
  49 }
  50
  51 static NTSTATUS gensec_ntlmssp3_client_start(struct gensec_security *gensec_security)
  52 {
  53         NTSTATUS nt_status;
  54         struct gensec_ntlmssp_context *gensec_ntlmssp;
  55         const char *user, *domain;
  56         const char *password;
  57
  58         nt_status = gensec_ntlmssp_start(gensec_security);
  59         NT_STATUS_NOT_OK_RETURN(nt_status);
  60
  61         gensec_ntlmssp =
  62                 talloc_get_type_abort(gensec_security->private_data,
  63                                       struct gensec_ntlmssp_context);
  64
  65         nt_status = ntlmssp_client_start(gensec_ntlmssp,
  66                                          lp_netbios_name(), lp_workgroup(),
  67                                          lp_client_ntlmv2_auth(), &gensec_ntlmssp->ntlmssp_state);
  68         if (!NT_STATUS_IS_OK(nt_status)) {
  69                 return nt_status;
  70         }
  71
  72         cli_credentials_get_ntlm_username_domain(gensec_security->credentials, gensec_ntlmssp, &user, &domain);
  73         if (!user || !domain) {
  74                 return NT_STATUS_NO_MEMORY;
  75         }
  76
  77         nt_status = ntlmssp_set_username(gensec_ntlmssp->ntlmssp_state, user);
  78         if (!NT_STATUS_IS_OK(nt_status)) {
  79                 return nt_status;
  80         }
  81
  82         nt_status = ntlmssp_set_domain(gensec_ntlmssp->ntlmssp_state, domain);
  83         if (!NT_STATUS_IS_OK(nt_status)) {
  84                 return nt_status;
  85         }
  86
  87         password = cli_credentials_get_password(gensec_security->credentials);
  88         if (!password) {
  89                 return NT_STATUS_NO_MEMORY;
  90         }
  91
  92         nt_status = ntlmssp_set_password(gensec_ntlmssp->ntlmssp_state, password);
  93         if (!NT_STATUS_IS_OK(nt_status)) {
  94                 return nt_status;
  95         }
  96
  97         if (gensec_security->want_features & GENSEC_FEATURE_SESSION_KEY) {
  98                 gensec_ntlmssp->ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
  99         }
 100         if (gensec_security->want_features & GENSEC_FEATURE_SIGN) {
 101                 gensec_ntlmssp->ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
 102         }
 103         if (gensec_security->want_features & GENSEC_FEATURE_SEAL) {
 104                 gensec_ntlmssp->ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
 105                 gensec_ntlmssp->ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SEAL;
 106         }
 107
 108         return NT_STATUS_OK;
 109 }
 110
 111 static const char *gensec_ntlmssp3_client_oids[] = {
 112         GENSEC_OID_NTLMSSP,
 113         NULL
 114 };
 115
 116 const struct gensec_security_ops gensec_ntlmssp3_client_ops = {
 117         .name           = "ntlmssp3_client",
 118         .sasl_name      = GENSEC_SASL_NAME_NTLMSSP, /* "NTLM" */
 119         .auth_type      = DCERPC_AUTH_TYPE_NTLMSSP,
 120         .oid            = gensec_ntlmssp3_client_oids,
 121         .client_start   = gensec_ntlmssp3_client_start,
 122         .magic          = gensec_ntlmssp_magic,
 123         .update         = gensec_ntlmssp3_client_update,
 124         .sig_size       = gensec_ntlmssp_sig_size,
 125         .sign_packet    = gensec_ntlmssp_sign_packet,
 126         .check_packet   = gensec_ntlmssp_check_packet,
 127         .seal_packet    = gensec_ntlmssp_seal_packet,
 128         .unseal_packet  = gensec_ntlmssp_unseal_packet,
 129         .wrap           = gensec_ntlmssp_wrap,
 130         .unwrap         = gensec_ntlmssp_unwrap,
 131         .session_key    = gensec_ntlmssp_session_key,
 132         .have_feature   = gensec_ntlmssp_have_feature,
 133         .enabled        = true,
 134         .priority       = GENSEC_NTLMSSP
 135 };